]>
Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
219d1afa | 3 | Copyright (C) 1993-2018 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" |
3db64b00 | 38 | #include "bfd.h" |
252b5132 RH |
39 | #include "bfdlink.h" |
40 | #include "libbfd.h" | |
41 | #define ARCH_SIZE 0 | |
42 | #include "elf-bfd.h" | |
e0e8c97f | 43 | #include "libiberty.h" |
ff59fc36 | 44 | #include "safe-ctype.h" |
de64ce13 | 45 | #include "elf-linux-core.h" |
252b5132 | 46 | |
8bc7f138 L |
47 | #ifdef CORE_HEADER |
48 | #include CORE_HEADER | |
49 | #endif | |
50 | ||
217aa764 | 51 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 52 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 | 53 | static bfd_boolean prep_headers (bfd *); |
ef10c3ac | 54 | static bfd_boolean swap_out_syms (bfd *, struct elf_strtab_hash **, int) ; |
276da9b3 L |
55 | static bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type, |
56 | size_t align) ; | |
718175fa | 57 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, |
276da9b3 | 58 | file_ptr offset, size_t align); |
50b2bdb7 | 59 | |
252b5132 RH |
60 | /* Swap version information in and out. The version information is |
61 | currently size independent. If that ever changes, this code will | |
62 | need to move into elfcode.h. */ | |
63 | ||
64 | /* Swap in a Verdef structure. */ | |
65 | ||
66 | void | |
217aa764 AM |
67 | _bfd_elf_swap_verdef_in (bfd *abfd, |
68 | const Elf_External_Verdef *src, | |
69 | Elf_Internal_Verdef *dst) | |
252b5132 | 70 | { |
dc810e39 AM |
71 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
72 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
73 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
74 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
75 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
76 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
77 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
78 | } |
79 | ||
80 | /* Swap out a Verdef structure. */ | |
81 | ||
82 | void | |
217aa764 AM |
83 | _bfd_elf_swap_verdef_out (bfd *abfd, |
84 | const Elf_Internal_Verdef *src, | |
85 | Elf_External_Verdef *dst) | |
252b5132 | 86 | { |
dc810e39 AM |
87 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
88 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
89 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
90 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
91 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
92 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
93 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
94 | } |
95 | ||
96 | /* Swap in a Verdaux structure. */ | |
97 | ||
98 | void | |
217aa764 AM |
99 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
100 | const Elf_External_Verdaux *src, | |
101 | Elf_Internal_Verdaux *dst) | |
252b5132 | 102 | { |
dc810e39 AM |
103 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
104 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
105 | } |
106 | ||
107 | /* Swap out a Verdaux structure. */ | |
108 | ||
109 | void | |
217aa764 AM |
110 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
111 | const Elf_Internal_Verdaux *src, | |
112 | Elf_External_Verdaux *dst) | |
252b5132 | 113 | { |
dc810e39 AM |
114 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
115 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
116 | } |
117 | ||
118 | /* Swap in a Verneed structure. */ | |
119 | ||
120 | void | |
217aa764 AM |
121 | _bfd_elf_swap_verneed_in (bfd *abfd, |
122 | const Elf_External_Verneed *src, | |
123 | Elf_Internal_Verneed *dst) | |
252b5132 | 124 | { |
dc810e39 AM |
125 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
126 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
127 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
128 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
129 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
130 | } |
131 | ||
132 | /* Swap out a Verneed structure. */ | |
133 | ||
134 | void | |
217aa764 AM |
135 | _bfd_elf_swap_verneed_out (bfd *abfd, |
136 | const Elf_Internal_Verneed *src, | |
137 | Elf_External_Verneed *dst) | |
252b5132 | 138 | { |
dc810e39 AM |
139 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
140 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
141 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
142 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
143 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
144 | } |
145 | ||
146 | /* Swap in a Vernaux structure. */ | |
147 | ||
148 | void | |
217aa764 AM |
149 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
150 | const Elf_External_Vernaux *src, | |
151 | Elf_Internal_Vernaux *dst) | |
252b5132 | 152 | { |
dc810e39 AM |
153 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
154 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
155 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
156 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
157 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
158 | } |
159 | ||
160 | /* Swap out a Vernaux structure. */ | |
161 | ||
162 | void | |
217aa764 AM |
163 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
164 | const Elf_Internal_Vernaux *src, | |
165 | Elf_External_Vernaux *dst) | |
252b5132 | 166 | { |
dc810e39 AM |
167 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
168 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
169 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
170 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
171 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
172 | } |
173 | ||
174 | /* Swap in a Versym structure. */ | |
175 | ||
176 | void | |
217aa764 AM |
177 | _bfd_elf_swap_versym_in (bfd *abfd, |
178 | const Elf_External_Versym *src, | |
179 | Elf_Internal_Versym *dst) | |
252b5132 | 180 | { |
dc810e39 | 181 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
182 | } |
183 | ||
184 | /* Swap out a Versym structure. */ | |
185 | ||
186 | void | |
217aa764 AM |
187 | _bfd_elf_swap_versym_out (bfd *abfd, |
188 | const Elf_Internal_Versym *src, | |
189 | Elf_External_Versym *dst) | |
252b5132 | 190 | { |
dc810e39 | 191 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
192 | } |
193 | ||
194 | /* Standard ELF hash function. Do not change this function; you will | |
195 | cause invalid hash tables to be generated. */ | |
3a99b017 | 196 | |
252b5132 | 197 | unsigned long |
217aa764 | 198 | bfd_elf_hash (const char *namearg) |
252b5132 | 199 | { |
3a99b017 | 200 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
201 | unsigned long h = 0; |
202 | unsigned long g; | |
203 | int ch; | |
204 | ||
205 | while ((ch = *name++) != '\0') | |
206 | { | |
207 | h = (h << 4) + ch; | |
208 | if ((g = (h & 0xf0000000)) != 0) | |
209 | { | |
210 | h ^= g >> 24; | |
211 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
212 | this case and on some machines one insn instead of two. */ | |
213 | h ^= g; | |
214 | } | |
215 | } | |
32dfa85d | 216 | return h & 0xffffffff; |
252b5132 RH |
217 | } |
218 | ||
fdc90cb4 JJ |
219 | /* DT_GNU_HASH hash function. Do not change this function; you will |
220 | cause invalid hash tables to be generated. */ | |
221 | ||
222 | unsigned long | |
223 | bfd_elf_gnu_hash (const char *namearg) | |
224 | { | |
225 | const unsigned char *name = (const unsigned char *) namearg; | |
226 | unsigned long h = 5381; | |
227 | unsigned char ch; | |
228 | ||
229 | while ((ch = *name++) != '\0') | |
230 | h = (h << 5) + h + ch; | |
231 | return h & 0xffffffff; | |
232 | } | |
233 | ||
0c8d6e5c AM |
234 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
235 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 236 | bfd_boolean |
0c8d6e5c | 237 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 238 | size_t object_size, |
4dfe6ac6 | 239 | enum elf_target_id object_id) |
252b5132 | 240 | { |
0ffa91dd NC |
241 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
242 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
243 | if (abfd->tdata.any == NULL) | |
244 | return FALSE; | |
252b5132 | 245 | |
0ffa91dd | 246 | elf_object_id (abfd) = object_id; |
c0355132 AM |
247 | if (abfd->direction != read_direction) |
248 | { | |
249 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
250 | if (o == NULL) | |
251 | return FALSE; | |
252 | elf_tdata (abfd)->o = o; | |
253 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
254 | } | |
b34976b6 | 255 | return TRUE; |
252b5132 RH |
256 | } |
257 | ||
0ffa91dd NC |
258 | |
259 | bfd_boolean | |
ae95ffa6 | 260 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 261 | { |
ae95ffa6 | 262 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 263 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 264 | bed->target_id); |
0ffa91dd NC |
265 | } |
266 | ||
b34976b6 | 267 | bfd_boolean |
217aa764 | 268 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 269 | { |
c044fabd | 270 | /* I think this can be done just like an object file. */ |
228e534f AM |
271 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
272 | return FALSE; | |
273 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); | |
274 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
275 | } |
276 | ||
72a80a16 | 277 | static char * |
217aa764 | 278 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
279 | { |
280 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 281 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
282 | file_ptr offset; |
283 | bfd_size_type shstrtabsize; | |
252b5132 RH |
284 | |
285 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
286 | if (i_shdrp == 0 |
287 | || shindex >= elf_numsections (abfd) | |
288 | || i_shdrp[shindex] == 0) | |
f075ee0c | 289 | return NULL; |
252b5132 | 290 | |
f075ee0c | 291 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
292 | if (shstrtab == NULL) |
293 | { | |
c044fabd | 294 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
295 | offset = i_shdrp[shindex]->sh_offset; |
296 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
297 | |
298 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
299 | in case the string table is not terminated. */ | |
3471d59d | 300 | if (shstrtabsize + 1 <= 1 |
95a6d235 | 301 | || shstrtabsize > bfd_get_file_size (abfd) |
06614111 NC |
302 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
303 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) | |
c6c60d09 JJ |
304 | shstrtab = NULL; |
305 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
306 | { | |
307 | if (bfd_get_error () != bfd_error_system_call) | |
308 | bfd_set_error (bfd_error_file_truncated); | |
06614111 | 309 | bfd_release (abfd, shstrtab); |
c6c60d09 | 310 | shstrtab = NULL; |
3471d59d CC |
311 | /* Once we've failed to read it, make sure we don't keep |
312 | trying. Otherwise, we'll keep allocating space for | |
313 | the string table over and over. */ | |
314 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
315 | } |
316 | else | |
317 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 318 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 319 | } |
f075ee0c | 320 | return (char *) shstrtab; |
252b5132 RH |
321 | } |
322 | ||
323 | char * | |
217aa764 AM |
324 | bfd_elf_string_from_elf_section (bfd *abfd, |
325 | unsigned int shindex, | |
326 | unsigned int strindex) | |
252b5132 RH |
327 | { |
328 | Elf_Internal_Shdr *hdr; | |
329 | ||
330 | if (strindex == 0) | |
331 | return ""; | |
332 | ||
74f2e02b AM |
333 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
334 | return NULL; | |
335 | ||
252b5132 RH |
336 | hdr = elf_elfsections (abfd)[shindex]; |
337 | ||
06614111 NC |
338 | if (hdr->contents == NULL) |
339 | { | |
340 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
341 | { | |
342 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 343 | /* xgettext:c-format */ |
871b3ab2 | 344 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 345 | " a non-string section (number %d)"), |
06614111 NC |
346 | abfd, shindex); |
347 | return NULL; | |
348 | } | |
b1fa9dd6 | 349 | |
06614111 NC |
350 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
351 | return NULL; | |
352 | } | |
252b5132 RH |
353 | |
354 | if (strindex >= hdr->sh_size) | |
355 | { | |
1b3a8575 | 356 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 357 | _bfd_error_handler |
695344c0 | 358 | /* xgettext:c-format */ |
2dcf00ce AM |
359 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
360 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 361 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 362 | ? ".shstrtab" |
1b3a8575 | 363 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 364 | return NULL; |
252b5132 RH |
365 | } |
366 | ||
367 | return ((char *) hdr->contents) + strindex; | |
368 | } | |
369 | ||
6cdc0ccc AM |
370 | /* Read and convert symbols to internal format. |
371 | SYMCOUNT specifies the number of symbols to read, starting from | |
372 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
373 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
374 | symbols, and symbol section index extensions, respectively. |
375 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
376 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
377 | |
378 | Elf_Internal_Sym * | |
217aa764 AM |
379 | bfd_elf_get_elf_syms (bfd *ibfd, |
380 | Elf_Internal_Shdr *symtab_hdr, | |
381 | size_t symcount, | |
382 | size_t symoffset, | |
383 | Elf_Internal_Sym *intsym_buf, | |
384 | void *extsym_buf, | |
385 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
386 | { |
387 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 388 | void *alloc_ext; |
df622259 | 389 | const bfd_byte *esym; |
6cdc0ccc AM |
390 | Elf_External_Sym_Shndx *alloc_extshndx; |
391 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 392 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
393 | Elf_Internal_Sym *isym; |
394 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 395 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
396 | size_t extsym_size; |
397 | bfd_size_type amt; | |
398 | file_ptr pos; | |
399 | ||
e44a2c9c AM |
400 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
401 | abort (); | |
402 | ||
6cdc0ccc AM |
403 | if (symcount == 0) |
404 | return intsym_buf; | |
405 | ||
406 | /* Normal syms might have section extension entries. */ | |
407 | shndx_hdr = NULL; | |
6a40cf0c NC |
408 | if (elf_symtab_shndx_list (ibfd) != NULL) |
409 | { | |
410 | elf_section_list * entry; | |
411 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
412 | ||
413 | /* Find an index section that is linked to this symtab section. */ | |
414 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
415 | { |
416 | /* PR 20063. */ | |
417 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
418 | continue; | |
419 | ||
420 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
421 | { | |
422 | shndx_hdr = & entry->hdr; | |
423 | break; | |
424 | }; | |
425 | } | |
6a40cf0c NC |
426 | |
427 | if (shndx_hdr == NULL) | |
428 | { | |
429 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
430 | /* Not really accurate, but this was how the old code used to work. */ | |
431 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
432 | /* Otherwise we do nothing. The assumption is that | |
433 | the index table will not be needed. */ | |
434 | } | |
435 | } | |
6cdc0ccc AM |
436 | |
437 | /* Read the symbols. */ | |
438 | alloc_ext = NULL; | |
439 | alloc_extshndx = NULL; | |
4dd07732 | 440 | alloc_intsym = NULL; |
6cdc0ccc AM |
441 | bed = get_elf_backend_data (ibfd); |
442 | extsym_size = bed->s->sizeof_sym; | |
ef53be89 | 443 | amt = (bfd_size_type) symcount * extsym_size; |
6cdc0ccc AM |
444 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
445 | if (extsym_buf == NULL) | |
446 | { | |
d0fb9a8d | 447 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
448 | extsym_buf = alloc_ext; |
449 | } | |
450 | if (extsym_buf == NULL | |
451 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
452 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
453 | { | |
454 | intsym_buf = NULL; | |
455 | goto out; | |
456 | } | |
457 | ||
458 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
459 | extshndx_buf = NULL; | |
460 | else | |
461 | { | |
ef53be89 | 462 | amt = (bfd_size_type) symcount * sizeof (Elf_External_Sym_Shndx); |
6cdc0ccc AM |
463 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
464 | if (extshndx_buf == NULL) | |
465 | { | |
a50b1753 | 466 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
07d6d2b8 | 467 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); |
6cdc0ccc AM |
468 | extshndx_buf = alloc_extshndx; |
469 | } | |
470 | if (extshndx_buf == NULL | |
471 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
472 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
473 | { | |
474 | intsym_buf = NULL; | |
475 | goto out; | |
476 | } | |
477 | } | |
478 | ||
479 | if (intsym_buf == NULL) | |
480 | { | |
a50b1753 | 481 | alloc_intsym = (Elf_Internal_Sym *) |
07d6d2b8 | 482 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); |
4dd07732 | 483 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
484 | if (intsym_buf == NULL) |
485 | goto out; | |
486 | } | |
487 | ||
488 | /* Convert the symbols to internal form. */ | |
489 | isymend = intsym_buf + symcount; | |
a50b1753 | 490 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 491 | shndx = extshndx_buf; |
6cdc0ccc AM |
492 | isym < isymend; |
493 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
494 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
495 | { | |
496 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 497 | /* xgettext:c-format */ |
871b3ab2 | 498 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 499 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 500 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
501 | if (alloc_intsym != NULL) |
502 | free (alloc_intsym); | |
8384fb8f AM |
503 | intsym_buf = NULL; |
504 | goto out; | |
505 | } | |
6cdc0ccc AM |
506 | |
507 | out: | |
508 | if (alloc_ext != NULL) | |
509 | free (alloc_ext); | |
510 | if (alloc_extshndx != NULL) | |
511 | free (alloc_extshndx); | |
512 | ||
513 | return intsym_buf; | |
514 | } | |
515 | ||
5cab59f6 AM |
516 | /* Look up a symbol name. */ |
517 | const char * | |
be8dd2ca AM |
518 | bfd_elf_sym_name (bfd *abfd, |
519 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
520 | Elf_Internal_Sym *isym, |
521 | asection *sym_sec) | |
5cab59f6 | 522 | { |
26c61ae5 | 523 | const char *name; |
5cab59f6 | 524 | unsigned int iname = isym->st_name; |
be8dd2ca | 525 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 526 | |
138f35cc JJ |
527 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
528 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 529 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
530 | { |
531 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
532 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
533 | } | |
534 | ||
26c61ae5 L |
535 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
536 | if (name == NULL) | |
537 | name = "(null)"; | |
538 | else if (sym_sec && *name == '\0') | |
539 | name = bfd_section_name (abfd, sym_sec); | |
540 | ||
541 | return name; | |
5cab59f6 AM |
542 | } |
543 | ||
dbb410c3 AM |
544 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
545 | sections. The first element is the flags, the rest are section | |
546 | pointers. */ | |
547 | ||
548 | typedef union elf_internal_group { | |
549 | Elf_Internal_Shdr *shdr; | |
550 | unsigned int flags; | |
551 | } Elf_Internal_Group; | |
552 | ||
b885599b AM |
553 | /* Return the name of the group signature symbol. Why isn't the |
554 | signature just a string? */ | |
555 | ||
556 | static const char * | |
217aa764 | 557 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 558 | { |
9dce4196 | 559 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
560 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
561 | Elf_External_Sym_Shndx eshndx; | |
562 | Elf_Internal_Sym isym; | |
b885599b | 563 | |
13792e9d L |
564 | /* First we need to ensure the symbol table is available. Make sure |
565 | that it is a symbol table section. */ | |
4fbb74a6 AM |
566 | if (ghdr->sh_link >= elf_numsections (abfd)) |
567 | return NULL; | |
13792e9d L |
568 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
569 | if (hdr->sh_type != SHT_SYMTAB | |
570 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
571 | return NULL; |
572 | ||
9dce4196 AM |
573 | /* Go read the symbol. */ |
574 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
575 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
576 | &isym, esym, &eshndx) == NULL) | |
b885599b | 577 | return NULL; |
9dce4196 | 578 | |
26c61ae5 | 579 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
580 | } |
581 | ||
dbb410c3 AM |
582 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
583 | ||
b34976b6 | 584 | static bfd_boolean |
217aa764 | 585 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
586 | { |
587 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
588 | ||
589 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
590 | is set to -1 if there are no SHT_GROUP sections. */ | |
591 | if (num_group == 0) | |
592 | { | |
593 | unsigned int i, shnum; | |
594 | ||
595 | /* First count the number of groups. If we have a SHT_GROUP | |
596 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 597 | shnum = elf_numsections (abfd); |
dbb410c3 | 598 | num_group = 0; |
08a40648 | 599 | |
44534af3 | 600 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 601 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 602 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
603 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
604 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 605 | |
dbb410c3 AM |
606 | for (i = 0; i < shnum; i++) |
607 | { | |
608 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 609 | |
44534af3 | 610 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
611 | num_group += 1; |
612 | } | |
613 | ||
614 | if (num_group == 0) | |
20dbb49d L |
615 | { |
616 | num_group = (unsigned) -1; | |
617 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 618 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
619 | } |
620 | else | |
dbb410c3 AM |
621 | { |
622 | /* We keep a list of elf section headers for group sections, | |
623 | so we can find them quickly. */ | |
20dbb49d | 624 | bfd_size_type amt; |
d0fb9a8d | 625 | |
20dbb49d | 626 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 | 627 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
07d6d2b8 | 628 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); |
dbb410c3 | 629 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 630 | return FALSE; |
4bba0fb1 AM |
631 | memset (elf_tdata (abfd)->group_sect_ptr, 0, |
632 | num_group * sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 633 | num_group = 0; |
ce497010 | 634 | |
dbb410c3 AM |
635 | for (i = 0; i < shnum; i++) |
636 | { | |
637 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 638 | |
44534af3 | 639 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 640 | { |
973ffd63 | 641 | unsigned char *src; |
dbb410c3 AM |
642 | Elf_Internal_Group *dest; |
643 | ||
07d6d2b8 AM |
644 | /* Make sure the group section has a BFD section |
645 | attached to it. */ | |
646 | if (!bfd_section_from_shdr (abfd, i)) | |
647 | return FALSE; | |
648 | ||
dbb410c3 AM |
649 | /* Add to list of sections. */ |
650 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
651 | num_group += 1; | |
652 | ||
653 | /* Read the raw contents. */ | |
654 | BFD_ASSERT (sizeof (*dest) >= 4); | |
655 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 | 656 | shdr->contents = (unsigned char *) |
07d6d2b8 | 657 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); |
1783205a NC |
658 | /* PR binutils/4110: Handle corrupt group headers. */ |
659 | if (shdr->contents == NULL) | |
660 | { | |
661 | _bfd_error_handler | |
695344c0 | 662 | /* xgettext:c-format */ |
871b3ab2 | 663 | (_("%pB: corrupt size field in group section" |
2dcf00ce AM |
664 | " header: %#" PRIx64), |
665 | abfd, (uint64_t) shdr->sh_size); | |
1783205a | 666 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
667 | -- num_group; |
668 | continue; | |
1783205a NC |
669 | } |
670 | ||
671 | memset (shdr->contents, 0, amt); | |
672 | ||
673 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
674 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
675 | != shdr->sh_size)) | |
493a3386 NC |
676 | { |
677 | _bfd_error_handler | |
695344c0 | 678 | /* xgettext:c-format */ |
871b3ab2 | 679 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
680 | " header: %#" PRIx64 ""), |
681 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
682 | bfd_set_error (bfd_error_bad_value); |
683 | -- num_group; | |
63a5468a AM |
684 | /* PR 17510: If the group contents are even |
685 | partially corrupt, do not allow any of the | |
686 | contents to be used. */ | |
493a3386 NC |
687 | memset (shdr->contents, 0, amt); |
688 | continue; | |
689 | } | |
708d7d0d | 690 | |
dbb410c3 AM |
691 | /* Translate raw contents, a flag word followed by an |
692 | array of elf section indices all in target byte order, | |
693 | to the flag word followed by an array of elf section | |
694 | pointers. */ | |
695 | src = shdr->contents + shdr->sh_size; | |
696 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 697 | |
dbb410c3 AM |
698 | while (1) |
699 | { | |
700 | unsigned int idx; | |
701 | ||
702 | src -= 4; | |
703 | --dest; | |
704 | idx = H_GET_32 (abfd, src); | |
705 | if (src == shdr->contents) | |
706 | { | |
707 | dest->flags = idx; | |
b885599b AM |
708 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
709 | shdr->bfd_section->flags | |
710 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
711 | break; |
712 | } | |
4bba0fb1 | 713 | if (idx < shnum) |
bae363f1 L |
714 | { |
715 | dest->shdr = elf_elfsections (abfd)[idx]; | |
716 | /* PR binutils/23199: All sections in a | |
717 | section group should be marked with | |
718 | SHF_GROUP. But some tools generate | |
719 | broken objects without SHF_GROUP. Fix | |
720 | them up here. */ | |
721 | dest->shdr->sh_flags |= SHF_GROUP; | |
722 | } | |
4bba0fb1 AM |
723 | if (idx >= shnum |
724 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 725 | { |
4eca0228 | 726 | _bfd_error_handler |
4bba0fb1 AM |
727 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
728 | abfd, i); | |
729 | dest->shdr = NULL; | |
dbb410c3 | 730 | } |
dbb410c3 AM |
731 | } |
732 | } | |
733 | } | |
493a3386 NC |
734 | |
735 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
736 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
737 | { | |
738 | elf_tdata (abfd)->num_group = num_group; | |
739 | ||
740 | /* If all groups are invalid then fail. */ | |
741 | if (num_group == 0) | |
742 | { | |
743 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
744 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 745 | _bfd_error_handler |
871b3ab2 | 746 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
747 | bfd_set_error (bfd_error_bad_value); |
748 | } | |
749 | } | |
dbb410c3 AM |
750 | } |
751 | } | |
752 | ||
753 | if (num_group != (unsigned) -1) | |
754 | { | |
564e11c9 JW |
755 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
756 | unsigned int j; | |
dbb410c3 | 757 | |
564e11c9 | 758 | for (j = 0; j < num_group; j++) |
dbb410c3 | 759 | { |
564e11c9 JW |
760 | /* Begin search from previous found group. */ |
761 | unsigned i = (j + search_offset) % num_group; | |
762 | ||
dbb410c3 | 763 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 764 | Elf_Internal_Group *idx; |
0c54f692 | 765 | bfd_size_type n_elt; |
ce497010 NC |
766 | |
767 | if (shdr == NULL) | |
768 | continue; | |
769 | ||
770 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
771 | if (idx == NULL || shdr->sh_size < 4) |
772 | { | |
773 | /* See PR 21957 for a reproducer. */ | |
774 | /* xgettext:c-format */ | |
871b3ab2 | 775 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
776 | abfd, shdr->bfd_section); |
777 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
778 | bfd_set_error (bfd_error_bad_value); | |
779 | return FALSE; | |
780 | } | |
ce497010 | 781 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
782 | |
783 | /* Look through this group's sections to see if current | |
784 | section is a member. */ | |
785 | while (--n_elt != 0) | |
786 | if ((++idx)->shdr == hdr) | |
787 | { | |
e0e8c97f | 788 | asection *s = NULL; |
dbb410c3 AM |
789 | |
790 | /* We are a member of this group. Go looking through | |
791 | other members to see if any others are linked via | |
792 | next_in_group. */ | |
793 | idx = (Elf_Internal_Group *) shdr->contents; | |
794 | n_elt = shdr->sh_size / 4; | |
795 | while (--n_elt != 0) | |
4bba0fb1 AM |
796 | if ((++idx)->shdr != NULL |
797 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 798 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
799 | break; |
800 | if (n_elt != 0) | |
801 | { | |
dbb410c3 AM |
802 | /* Snarf the group name from other member, and |
803 | insert current section in circular list. */ | |
945906ff AM |
804 | elf_group_name (newsect) = elf_group_name (s); |
805 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
806 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
807 | } |
808 | else | |
809 | { | |
dbb410c3 AM |
810 | const char *gname; |
811 | ||
b885599b AM |
812 | gname = group_signature (abfd, shdr); |
813 | if (gname == NULL) | |
b34976b6 | 814 | return FALSE; |
945906ff | 815 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
816 | |
817 | /* Start a circular list with one element. */ | |
945906ff | 818 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 819 | } |
b885599b | 820 | |
9dce4196 AM |
821 | /* If the group section has been created, point to the |
822 | new member. */ | |
dbb410c3 | 823 | if (shdr->bfd_section != NULL) |
945906ff | 824 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 825 | |
564e11c9 JW |
826 | elf_tdata (abfd)->group_search_offset = i; |
827 | j = num_group - 1; | |
dbb410c3 AM |
828 | break; |
829 | } | |
830 | } | |
831 | } | |
832 | ||
945906ff | 833 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 834 | { |
695344c0 | 835 | /* xgettext:c-format */ |
871b3ab2 | 836 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 837 | abfd, newsect); |
493a3386 | 838 | return FALSE; |
dbb410c3 | 839 | } |
b34976b6 | 840 | return TRUE; |
dbb410c3 AM |
841 | } |
842 | ||
3d7f7666 | 843 | bfd_boolean |
dd863624 | 844 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
845 | { |
846 | unsigned int i; | |
847 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
848 | bfd_boolean result = TRUE; | |
dd863624 L |
849 | asection *s; |
850 | ||
851 | /* Process SHF_LINK_ORDER. */ | |
852 | for (s = abfd->sections; s != NULL; s = s->next) | |
853 | { | |
854 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
855 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
856 | { | |
857 | unsigned int elfsec = this_hdr->sh_link; | |
858 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
859 | not set the sh_link or sh_info fields. Hence we could | |
860 | get the situation where elfsec is 0. */ | |
861 | if (elfsec == 0) | |
862 | { | |
4fbb74a6 | 863 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
864 | if (bed->link_order_error_handler) |
865 | bed->link_order_error_handler | |
695344c0 | 866 | /* xgettext:c-format */ |
871b3ab2 | 867 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
868 | abfd, s); |
869 | } | |
870 | else | |
871 | { | |
91d6fa6a | 872 | asection *linksec = NULL; |
25bbc984 | 873 | |
4fbb74a6 AM |
874 | if (elfsec < elf_numsections (abfd)) |
875 | { | |
876 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 877 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 878 | } |
25bbc984 L |
879 | |
880 | /* PR 1991, 2008: | |
881 | Some strip/objcopy may leave an incorrect value in | |
882 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 883 | if (linksec == NULL) |
25bbc984 | 884 | { |
4eca0228 | 885 | _bfd_error_handler |
695344c0 | 886 | /* xgettext:c-format */ |
871b3ab2 | 887 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 888 | s->owner, elfsec, s); |
25bbc984 L |
889 | result = FALSE; |
890 | } | |
891 | ||
91d6fa6a | 892 | elf_linked_to_section (s) = linksec; |
dd863624 L |
893 | } |
894 | } | |
53720c49 AM |
895 | else if (this_hdr->sh_type == SHT_GROUP |
896 | && elf_next_in_group (s) == NULL) | |
897 | { | |
4eca0228 | 898 | _bfd_error_handler |
695344c0 | 899 | /* xgettext:c-format */ |
871b3ab2 | 900 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
901 | abfd, elf_section_data (s)->this_idx); |
902 | result = FALSE; | |
903 | } | |
dd863624 | 904 | } |
3d7f7666 | 905 | |
dd863624 | 906 | /* Process section groups. */ |
3d7f7666 L |
907 | if (num_group == (unsigned) -1) |
908 | return result; | |
909 | ||
910 | for (i = 0; i < num_group; i++) | |
911 | { | |
912 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
913 | Elf_Internal_Group *idx; |
914 | unsigned int n_elt; | |
3d7f7666 | 915 | |
4b0e8a5f NC |
916 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
917 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
918 | { | |
4eca0228 | 919 | _bfd_error_handler |
695344c0 | 920 | /* xgettext:c-format */ |
871b3ab2 | 921 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
922 | abfd, i); |
923 | result = FALSE; | |
924 | continue; | |
925 | } | |
926 | ||
927 | idx = (Elf_Internal_Group *) shdr->contents; | |
928 | n_elt = shdr->sh_size / 4; | |
1b786873 | 929 | |
3d7f7666 | 930 | while (--n_elt != 0) |
24d3e51b NC |
931 | { |
932 | ++ idx; | |
933 | ||
934 | if (idx->shdr == NULL) | |
935 | continue; | |
936 | else if (idx->shdr->bfd_section) | |
937 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
938 | else if (idx->shdr->sh_type != SHT_RELA |
939 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
940 | { |
941 | /* There are some unknown sections in the group. */ | |
942 | _bfd_error_handler | |
943 | /* xgettext:c-format */ | |
871b3ab2 | 944 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
945 | abfd, |
946 | idx->shdr->sh_type, | |
947 | bfd_elf_string_from_elf_section (abfd, | |
948 | (elf_elfheader (abfd) | |
949 | ->e_shstrndx), | |
950 | idx->shdr->sh_name), | |
951 | shdr->bfd_section); | |
952 | result = FALSE; | |
953 | } | |
954 | } | |
3d7f7666 | 955 | } |
24d3e51b | 956 | |
3d7f7666 L |
957 | return result; |
958 | } | |
959 | ||
72adc230 AM |
960 | bfd_boolean |
961 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
962 | { | |
963 | return elf_next_in_group (sec) != NULL; | |
964 | } | |
965 | ||
f6fe1ccd L |
966 | static char * |
967 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
968 | { | |
969 | unsigned int len = strlen (name); | |
970 | char *new_name = bfd_alloc (abfd, len + 2); | |
971 | if (new_name == NULL) | |
972 | return NULL; | |
973 | new_name[0] = '.'; | |
974 | new_name[1] = 'z'; | |
975 | memcpy (new_name + 2, name + 1, len); | |
976 | return new_name; | |
977 | } | |
978 | ||
979 | static char * | |
980 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
981 | { | |
982 | unsigned int len = strlen (name); | |
983 | char *new_name = bfd_alloc (abfd, len); | |
984 | if (new_name == NULL) | |
985 | return NULL; | |
986 | new_name[0] = '.'; | |
987 | memcpy (new_name + 1, name + 2, len - 1); | |
988 | return new_name; | |
989 | } | |
990 | ||
252b5132 RH |
991 | /* Make a BFD section from an ELF section. We store a pointer to the |
992 | BFD section in the bfd_section field of the header. */ | |
993 | ||
b34976b6 | 994 | bfd_boolean |
217aa764 AM |
995 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
996 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
997 | const char *name, |
998 | int shindex) | |
252b5132 RH |
999 | { |
1000 | asection *newsect; | |
1001 | flagword flags; | |
9c5bfbb7 | 1002 | const struct elf_backend_data *bed; |
252b5132 RH |
1003 | |
1004 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1005 | return TRUE; |
252b5132 RH |
1006 | |
1007 | newsect = bfd_make_section_anyway (abfd, name); | |
1008 | if (newsect == NULL) | |
b34976b6 | 1009 | return FALSE; |
252b5132 | 1010 | |
1829f4b2 AM |
1011 | hdr->bfd_section = newsect; |
1012 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1013 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1014 | |
2f89ff8d L |
1015 | /* Always use the real type/flags. */ |
1016 | elf_section_type (newsect) = hdr->sh_type; | |
1017 | elf_section_flags (newsect) = hdr->sh_flags; | |
1018 | ||
252b5132 RH |
1019 | newsect->filepos = hdr->sh_offset; |
1020 | ||
1021 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
1022 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
1023 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 1024 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 1025 | return FALSE; |
252b5132 RH |
1026 | |
1027 | flags = SEC_NO_FLAGS; | |
1028 | if (hdr->sh_type != SHT_NOBITS) | |
1029 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1030 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1031 | flags |= SEC_GROUP; |
252b5132 RH |
1032 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1033 | { | |
1034 | flags |= SEC_ALLOC; | |
1035 | if (hdr->sh_type != SHT_NOBITS) | |
1036 | flags |= SEC_LOAD; | |
1037 | } | |
1038 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1039 | flags |= SEC_READONLY; | |
1040 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1041 | flags |= SEC_CODE; | |
1042 | else if ((flags & SEC_LOAD) != 0) | |
1043 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1044 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1045 | { | |
1046 | flags |= SEC_MERGE; | |
1047 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1048 | } |
84865015 NC |
1049 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1050 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1051 | if (hdr->sh_flags & SHF_GROUP) |
1052 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1053 | return FALSE; |
13ae64f3 JJ |
1054 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1055 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1056 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1057 | flags |= SEC_EXCLUDE; | |
252b5132 | 1058 | |
3d2b39cf | 1059 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1060 | { |
3d2b39cf L |
1061 | /* The debugging sections appear to be recognized only by name, |
1062 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1063 | if (name [0] == '.') |
1064 | { | |
f073ced3 AM |
1065 | const char *p; |
1066 | int n; | |
1067 | if (name[1] == 'd') | |
1068 | p = ".debug", n = 6; | |
1069 | else if (name[1] == 'g' && name[2] == 'n') | |
1070 | p = ".gnu.linkonce.wi.", n = 17; | |
1071 | else if (name[1] == 'g' && name[2] == 'd') | |
1072 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1073 | else if (name[1] == 'l') | |
1074 | p = ".line", n = 5; | |
1075 | else if (name[1] == 's') | |
1076 | p = ".stab", n = 5; | |
1077 | else if (name[1] == 'z') | |
1078 | p = ".zdebug", n = 7; | |
1079 | else | |
1080 | p = NULL, n = 0; | |
1081 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1082 | flags |= SEC_DEBUGGING; |
1083 | } | |
1084 | } | |
252b5132 RH |
1085 | |
1086 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1087 | only link a single copy of the section. This is used to support | |
1088 | g++. g++ will emit each template expansion in its own section. | |
1089 | The symbols will be defined as weak, so that multiple definitions | |
1090 | are permitted. The GNU linker extension is to actually discard | |
1091 | all but one of the sections. */ | |
0112cd26 | 1092 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1093 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1094 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1095 | ||
fa152c49 JW |
1096 | bed = get_elf_backend_data (abfd); |
1097 | if (bed->elf_backend_section_flags) | |
1098 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1099 | return FALSE; |
fa152c49 | 1100 | |
252b5132 | 1101 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 1102 | return FALSE; |
252b5132 | 1103 | |
718175fa JK |
1104 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1105 | separate debug info files which may have the segments offsets corrupted. | |
1106 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1107 | if (hdr->sh_type == SHT_NOTE) | |
1108 | { | |
baea7ef1 | 1109 | bfd_byte *contents; |
718175fa | 1110 | |
baea7ef1 | 1111 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1112 | return FALSE; |
1113 | ||
276da9b3 L |
1114 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1115 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1116 | free (contents); |
1117 | } | |
1118 | ||
252b5132 RH |
1119 | if ((flags & SEC_ALLOC) != 0) |
1120 | { | |
1121 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1122 | unsigned int i, nload; |
1123 | ||
1124 | /* Some ELF linkers produce binaries with all the program header | |
1125 | p_paddr fields zero. If we have such a binary with more than | |
1126 | one PT_LOAD header, then leave the section lma equal to vma | |
1127 | so that we don't create sections with overlapping lma. */ | |
1128 | phdr = elf_tdata (abfd)->phdr; | |
1129 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1130 | if (phdr->p_paddr != 0) | |
1131 | break; | |
1132 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1133 | ++nload; | |
1134 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1135 | return TRUE; | |
252b5132 | 1136 | |
252b5132 RH |
1137 | phdr = elf_tdata (abfd)->phdr; |
1138 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1139 | { | |
86b2281f AM |
1140 | if (((phdr->p_type == PT_LOAD |
1141 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1142 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1143 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1144 | { |
88967714 AM |
1145 | if ((flags & SEC_LOAD) == 0) |
1146 | newsect->lma = (phdr->p_paddr | |
1147 | + hdr->sh_addr - phdr->p_vaddr); | |
1148 | else | |
1149 | /* We used to use the same adjustment for SEC_LOAD | |
1150 | sections, but that doesn't work if the segment | |
1151 | is packed with code from multiple VMAs. | |
1152 | Instead we calculate the section LMA based on | |
1153 | the segment LMA. It is assumed that the | |
1154 | segment will contain sections with contiguous | |
1155 | LMAs, even if the VMAs are not. */ | |
1156 | newsect->lma = (phdr->p_paddr | |
1157 | + hdr->sh_offset - phdr->p_offset); | |
1158 | ||
1159 | /* With contiguous segments, we can't tell from file | |
1160 | offsets whether a section with zero size should | |
1161 | be placed at the end of one segment or the | |
1162 | beginning of the next. Decide based on vaddr. */ | |
1163 | if (hdr->sh_addr >= phdr->p_vaddr | |
1164 | && (hdr->sh_addr + hdr->sh_size | |
1165 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1166 | break; | |
252b5132 RH |
1167 | } |
1168 | } | |
1169 | } | |
1170 | ||
4a114e3e L |
1171 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1172 | .zdebug_*, after the section flags is set. */ | |
1173 | if ((flags & SEC_DEBUGGING) | |
1174 | && ((name[1] == 'd' && name[6] == '_') | |
1175 | || (name[1] == 'z' && name[7] == '_'))) | |
1176 | { | |
1177 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1178 | int compression_header_size; |
dab394de | 1179 | bfd_size_type uncompressed_size; |
4207142d | 1180 | unsigned int uncompressed_align_power; |
151411f8 L |
1181 | bfd_boolean compressed |
1182 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1183 | &compression_header_size, |
4207142d MW |
1184 | &uncompressed_size, |
1185 | &uncompressed_align_power); | |
151411f8 | 1186 | if (compressed) |
4a114e3e L |
1187 | { |
1188 | /* Compressed section. Check if we should decompress. */ | |
1189 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1190 | action = decompress; | |
1191 | } | |
151411f8 L |
1192 | |
1193 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1194 | section. Check if we should compress. */ | |
1195 | if (action == nothing) | |
4a114e3e | 1196 | { |
151411f8 L |
1197 | if (newsect->size != 0 |
1198 | && (abfd->flags & BFD_COMPRESS) | |
1199 | && compression_header_size >= 0 | |
dab394de | 1200 | && uncompressed_size > 0 |
151411f8 L |
1201 | && (!compressed |
1202 | || ((compression_header_size > 0) | |
1203 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1204 | action = compress; |
151411f8 L |
1205 | else |
1206 | return TRUE; | |
4a114e3e L |
1207 | } |
1208 | ||
151411f8 | 1209 | if (action == compress) |
4a114e3e | 1210 | { |
4a114e3e L |
1211 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1212 | { | |
4eca0228 | 1213 | _bfd_error_handler |
695344c0 | 1214 | /* xgettext:c-format */ |
871b3ab2 | 1215 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1216 | abfd, name); |
1217 | return FALSE; | |
1218 | } | |
151411f8 L |
1219 | } |
1220 | else | |
1221 | { | |
4a114e3e L |
1222 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1223 | { | |
4eca0228 | 1224 | _bfd_error_handler |
695344c0 | 1225 | /* xgettext:c-format */ |
871b3ab2 | 1226 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1227 | abfd, name); |
1228 | return FALSE; | |
1229 | } | |
151411f8 L |
1230 | } |
1231 | ||
f6fe1ccd | 1232 | if (abfd->is_linker_input) |
151411f8 | 1233 | { |
f6fe1ccd L |
1234 | if (name[1] == 'z' |
1235 | && (action == decompress | |
1236 | || (action == compress | |
1237 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1238 | { |
f6fe1ccd L |
1239 | /* Convert section name from .zdebug_* to .debug_* so |
1240 | that linker will consider this section as a debug | |
1241 | section. */ | |
1242 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1243 | if (new_name == NULL) |
1244 | return FALSE; | |
f6fe1ccd | 1245 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1246 | } |
4a114e3e | 1247 | } |
f6fe1ccd L |
1248 | else |
1249 | /* For objdump, don't rename the section. For objcopy, delay | |
1250 | section rename to elf_fake_sections. */ | |
1251 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1252 | } |
1253 | ||
b34976b6 | 1254 | return TRUE; |
252b5132 RH |
1255 | } |
1256 | ||
84865015 NC |
1257 | const char *const bfd_elf_section_type_names[] = |
1258 | { | |
252b5132 RH |
1259 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1260 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1261 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1262 | }; | |
1263 | ||
1049f94e | 1264 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1265 | output, and the reloc is against an external symbol, and nothing |
1266 | has given us any additional addend, the resulting reloc will also | |
1267 | be against the same symbol. In such a case, we don't want to | |
1268 | change anything about the way the reloc is handled, since it will | |
1269 | all be done at final link time. Rather than put special case code | |
1270 | into bfd_perform_relocation, all the reloc types use this howto | |
1271 | function. It just short circuits the reloc if producing | |
1049f94e | 1272 | relocatable output against an external symbol. */ |
252b5132 | 1273 | |
252b5132 | 1274 | bfd_reloc_status_type |
217aa764 AM |
1275 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1276 | arelent *reloc_entry, | |
1277 | asymbol *symbol, | |
1278 | void *data ATTRIBUTE_UNUSED, | |
1279 | asection *input_section, | |
1280 | bfd *output_bfd, | |
1281 | char **error_message ATTRIBUTE_UNUSED) | |
1282 | { | |
1283 | if (output_bfd != NULL | |
252b5132 RH |
1284 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1285 | && (! reloc_entry->howto->partial_inplace | |
1286 | || reloc_entry->addend == 0)) | |
1287 | { | |
1288 | reloc_entry->address += input_section->output_offset; | |
1289 | return bfd_reloc_ok; | |
1290 | } | |
1291 | ||
1292 | return bfd_reloc_continue; | |
1293 | } | |
1294 | \f | |
84865015 NC |
1295 | /* Returns TRUE if section A matches section B. |
1296 | Names, addresses and links may be different, but everything else | |
1297 | should be the same. */ | |
1298 | ||
1299 | static bfd_boolean | |
5522f910 NC |
1300 | section_match (const Elf_Internal_Shdr * a, |
1301 | const Elf_Internal_Shdr * b) | |
84865015 | 1302 | { |
ac85e67c AM |
1303 | if (a->sh_type != b->sh_type |
1304 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1305 | || a->sh_addralign != b->sh_addralign | |
1306 | || a->sh_entsize != b->sh_entsize) | |
1307 | return FALSE; | |
1308 | if (a->sh_type == SHT_SYMTAB | |
1309 | || a->sh_type == SHT_STRTAB) | |
1310 | return TRUE; | |
1311 | return a->sh_size == b->sh_size; | |
84865015 NC |
1312 | } |
1313 | ||
1314 | /* Find a section in OBFD that has the same characteristics | |
1315 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1316 | none can be found. Check's section HINT first, as this is likely | |
1317 | to be the correct section. */ | |
1318 | ||
1319 | static unsigned int | |
5cc4ca83 ST |
1320 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1321 | const unsigned int hint) | |
84865015 NC |
1322 | { |
1323 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1324 | unsigned int i; | |
1325 | ||
a55c9876 NC |
1326 | BFD_ASSERT (iheader != NULL); |
1327 | ||
1328 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1329 | if (hint < elf_numsections (obfd) |
1330 | && oheaders[hint] != NULL | |
a55c9876 | 1331 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1332 | return hint; |
1333 | ||
1334 | for (i = 1; i < elf_numsections (obfd); i++) | |
1335 | { | |
1336 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1337 | ||
a55c9876 NC |
1338 | if (oheader == NULL) |
1339 | continue; | |
84865015 NC |
1340 | if (section_match (oheader, iheader)) |
1341 | /* FIXME: Do we care if there is a potential for | |
1342 | multiple matches ? */ | |
1343 | return i; | |
1344 | } | |
1345 | ||
1346 | return SHN_UNDEF; | |
1347 | } | |
1348 | ||
5522f910 NC |
1349 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1350 | Processor specific section, based upon a matching input section. | |
1351 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1352 | |
5522f910 NC |
1353 | static bfd_boolean |
1354 | copy_special_section_fields (const bfd *ibfd, | |
1355 | bfd *obfd, | |
1356 | const Elf_Internal_Shdr *iheader, | |
1357 | Elf_Internal_Shdr *oheader, | |
1358 | const unsigned int secnum) | |
1359 | { | |
1360 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1361 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1362 | bfd_boolean changed = FALSE; | |
1363 | unsigned int sh_link; | |
1364 | ||
1365 | if (oheader->sh_type == SHT_NOBITS) | |
1366 | { | |
1367 | /* This is a feature for objcopy --only-keep-debug: | |
1368 | When a section's type is changed to NOBITS, we preserve | |
1369 | the sh_link and sh_info fields so that they can be | |
1370 | matched up with the original. | |
1371 | ||
1372 | Note: Strictly speaking these assignments are wrong. | |
1373 | The sh_link and sh_info fields should point to the | |
1374 | relevent sections in the output BFD, which may not be in | |
1375 | the same location as they were in the input BFD. But | |
1376 | the whole point of this action is to preserve the | |
1377 | original values of the sh_link and sh_info fields, so | |
1378 | that they can be matched up with the section headers in | |
1379 | the original file. So strictly speaking we may be | |
1380 | creating an invalid ELF file, but it is only for a file | |
1381 | that just contains debug info and only for sections | |
1382 | without any contents. */ | |
1383 | if (oheader->sh_link == 0) | |
1384 | oheader->sh_link = iheader->sh_link; | |
1385 | if (oheader->sh_info == 0) | |
1386 | oheader->sh_info = iheader->sh_info; | |
1387 | return TRUE; | |
1388 | } | |
1389 | ||
1390 | /* Allow the target a chance to decide how these fields should be set. */ | |
1391 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1392 | && bed->elf_backend_copy_special_section_fields | |
1393 | (ibfd, obfd, iheader, oheader)) | |
1394 | return TRUE; | |
1395 | ||
1396 | /* We have an iheader which might match oheader, and which has non-zero | |
1397 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1398 | the section in the output bfd which corresponds to the linked section | |
1399 | in the input bfd. */ | |
1400 | if (iheader->sh_link != SHN_UNDEF) | |
1401 | { | |
4f3ca05b NC |
1402 | /* See PR 20931 for a reproducer. */ |
1403 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1404 | { | |
76cfced5 | 1405 | _bfd_error_handler |
4f3ca05b | 1406 | /* xgettext:c-format */ |
9793eb77 | 1407 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1408 | ibfd, iheader->sh_link, secnum); |
1409 | return FALSE; | |
1410 | } | |
1411 | ||
5522f910 NC |
1412 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1413 | if (sh_link != SHN_UNDEF) | |
1414 | { | |
1415 | oheader->sh_link = sh_link; | |
1416 | changed = TRUE; | |
1417 | } | |
1418 | else | |
1419 | /* FIXME: Should we install iheader->sh_link | |
1420 | if we could not find a match ? */ | |
76cfced5 | 1421 | _bfd_error_handler |
695344c0 | 1422 | /* xgettext:c-format */ |
9793eb77 | 1423 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1424 | } |
1425 | ||
1426 | if (iheader->sh_info) | |
1427 | { | |
1428 | /* The sh_info field can hold arbitrary information, but if the | |
1429 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1430 | section index. */ | |
1431 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1432 | { | |
1433 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1434 | iheader->sh_info); | |
1435 | if (sh_link != SHN_UNDEF) | |
1436 | oheader->sh_flags |= SHF_INFO_LINK; | |
1437 | } | |
1438 | else | |
1439 | /* No idea what it means - just copy it. */ | |
1440 | sh_link = iheader->sh_info; | |
1441 | ||
1442 | if (sh_link != SHN_UNDEF) | |
1443 | { | |
1444 | oheader->sh_info = sh_link; | |
1445 | changed = TRUE; | |
1446 | } | |
1447 | else | |
76cfced5 | 1448 | _bfd_error_handler |
695344c0 | 1449 | /* xgettext:c-format */ |
9793eb77 | 1450 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1451 | } |
1452 | ||
1453 | return changed; | |
1454 | } | |
07d6d2b8 | 1455 | |
0ac4564e L |
1456 | /* Copy the program header and other data from one object module to |
1457 | another. */ | |
252b5132 | 1458 | |
b34976b6 | 1459 | bfd_boolean |
217aa764 | 1460 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1461 | { |
5522f910 NC |
1462 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1463 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1464 | const struct elf_backend_data *bed; | |
84865015 NC |
1465 | unsigned int i; |
1466 | ||
2d502050 | 1467 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1468 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1469 | return TRUE; |
2d502050 | 1470 | |
57b828ef L |
1471 | if (!elf_flags_init (obfd)) |
1472 | { | |
1473 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1474 | elf_flags_init (obfd) = TRUE; | |
1475 | } | |
2d502050 | 1476 | |
0ac4564e | 1477 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1478 | |
1479 | /* Also copy the EI_OSABI field. */ | |
1480 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1481 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1482 | |
5522f910 NC |
1483 | /* If set, copy the EI_ABIVERSION field. */ |
1484 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1485 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1486 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1487 | |
104d59d1 JM |
1488 | /* Copy object attributes. */ |
1489 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1490 | |
84865015 NC |
1491 | if (iheaders == NULL || oheaders == NULL) |
1492 | return TRUE; | |
63b9bbb7 | 1493 | |
5522f910 NC |
1494 | bed = get_elf_backend_data (obfd); |
1495 | ||
1496 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1497 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1498 | { |
84865015 NC |
1499 | unsigned int j; |
1500 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1501 | |
5522f910 NC |
1502 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1503 | because of a special case need for generating separate debug info | |
1504 | files. See below for more details. */ | |
84865015 NC |
1505 | if (oheader == NULL |
1506 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1507 | && oheader->sh_type < SHT_LOOS)) |
1508 | continue; | |
1509 | ||
1510 | /* Ignore empty sections, and sections whose | |
1511 | fields have already been initialised. */ | |
1512 | if (oheader->sh_size == 0 | |
84865015 NC |
1513 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1514 | continue; | |
63b9bbb7 | 1515 | |
84865015 | 1516 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1517 | First we try for a direct mapping between the input and output sections. */ |
1518 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1519 | { | |
1520 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1521 | ||
1522 | if (iheader == NULL) | |
1523 | continue; | |
1524 | ||
1525 | if (oheader->bfd_section != NULL | |
1526 | && iheader->bfd_section != NULL | |
1527 | && iheader->bfd_section->output_section != NULL | |
1528 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1529 | { | |
1530 | /* We have found a connection from the input section to the | |
1531 | output section. Attempt to copy the header fields. If | |
1532 | this fails then do not try any further sections - there | |
1533 | should only be a one-to-one mapping between input and output. */ | |
1534 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1535 | j = elf_numsections (ibfd); | |
1536 | break; | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | if (j < elf_numsections (ibfd)) | |
1541 | continue; | |
1542 | ||
1543 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1544 | Unfortunately we cannot compare names as the output string table |
1545 | is empty, so instead we check size, address and type. */ | |
1546 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1547 | { | |
5522f910 | 1548 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1549 | |
5522f910 NC |
1550 | if (iheader == NULL) |
1551 | continue; | |
1552 | ||
1553 | /* Try matching fields in the input section's header. | |
1554 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1555 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1556 | input type. */ | |
1557 | if ((oheader->sh_type == SHT_NOBITS | |
1558 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1559 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1560 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1561 | && iheader->sh_addralign == oheader->sh_addralign |
1562 | && iheader->sh_entsize == oheader->sh_entsize | |
1563 | && iheader->sh_size == oheader->sh_size | |
1564 | && iheader->sh_addr == oheader->sh_addr | |
1565 | && (iheader->sh_info != oheader->sh_info | |
1566 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1567 | { |
5522f910 NC |
1568 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1569 | break; | |
63b9bbb7 NC |
1570 | } |
1571 | } | |
5522f910 NC |
1572 | |
1573 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1574 | { | |
1575 | /* Final attempt. Call the backend copy function | |
1576 | with a NULL input section. */ | |
1577 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1578 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1579 | } | |
63b9bbb7 NC |
1580 | } |
1581 | ||
b34976b6 | 1582 | return TRUE; |
2d502050 L |
1583 | } |
1584 | ||
cedc298e L |
1585 | static const char * |
1586 | get_segment_type (unsigned int p_type) | |
1587 | { | |
1588 | const char *pt; | |
1589 | switch (p_type) | |
1590 | { | |
1591 | case PT_NULL: pt = "NULL"; break; | |
1592 | case PT_LOAD: pt = "LOAD"; break; | |
1593 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1594 | case PT_INTERP: pt = "INTERP"; break; | |
1595 | case PT_NOTE: pt = "NOTE"; break; | |
1596 | case PT_SHLIB: pt = "SHLIB"; break; | |
1597 | case PT_PHDR: pt = "PHDR"; break; | |
1598 | case PT_TLS: pt = "TLS"; break; | |
1599 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1600 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1601 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1602 | default: pt = NULL; break; | |
1603 | } | |
1604 | return pt; | |
1605 | } | |
1606 | ||
f0b79d91 L |
1607 | /* Print out the program headers. */ |
1608 | ||
b34976b6 | 1609 | bfd_boolean |
217aa764 | 1610 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1611 | { |
a50b1753 | 1612 | FILE *f = (FILE *) farg; |
252b5132 RH |
1613 | Elf_Internal_Phdr *p; |
1614 | asection *s; | |
1615 | bfd_byte *dynbuf = NULL; | |
1616 | ||
1617 | p = elf_tdata (abfd)->phdr; | |
1618 | if (p != NULL) | |
1619 | { | |
1620 | unsigned int i, c; | |
1621 | ||
1622 | fprintf (f, _("\nProgram Header:\n")); | |
1623 | c = elf_elfheader (abfd)->e_phnum; | |
1624 | for (i = 0; i < c; i++, p++) | |
1625 | { | |
cedc298e | 1626 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1627 | char buf[20]; |
1628 | ||
cedc298e | 1629 | if (pt == NULL) |
252b5132 | 1630 | { |
cedc298e L |
1631 | sprintf (buf, "0x%lx", p->p_type); |
1632 | pt = buf; | |
252b5132 | 1633 | } |
dc810e39 | 1634 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1635 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1636 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1637 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1638 | fprintf (f, " paddr 0x"); |
60b89a18 | 1639 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1640 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1641 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1642 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1643 | fprintf (f, " memsz 0x"); |
60b89a18 | 1644 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1645 | fprintf (f, " flags %c%c%c", |
1646 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1647 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1648 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1649 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1650 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1651 | fprintf (f, "\n"); |
1652 | } | |
1653 | } | |
1654 | ||
1655 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1656 | if (s != NULL) | |
1657 | { | |
cb33740c | 1658 | unsigned int elfsec; |
dc810e39 | 1659 | unsigned long shlink; |
252b5132 RH |
1660 | bfd_byte *extdyn, *extdynend; |
1661 | size_t extdynsize; | |
217aa764 | 1662 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1663 | |
1664 | fprintf (f, _("\nDynamic Section:\n")); | |
1665 | ||
eea6121a | 1666 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1667 | goto error_return; |
1668 | ||
1669 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1670 | if (elfsec == SHN_BAD) |
252b5132 | 1671 | goto error_return; |
dc810e39 | 1672 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1673 | |
1674 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1675 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1676 | ||
1677 | extdyn = dynbuf; | |
06614111 NC |
1678 | /* PR 17512: file: 6f427532. */ |
1679 | if (s->size < extdynsize) | |
1680 | goto error_return; | |
eea6121a | 1681 | extdynend = extdyn + s->size; |
1036838a | 1682 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1683 | Fix range check. */ |
1036838a | 1684 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1685 | { |
1686 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1687 | const char *name = ""; |
252b5132 | 1688 | char ab[20]; |
b34976b6 | 1689 | bfd_boolean stringp; |
ad9563d6 | 1690 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1691 | |
217aa764 | 1692 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1693 | |
1694 | if (dyn.d_tag == DT_NULL) | |
1695 | break; | |
1696 | ||
b34976b6 | 1697 | stringp = FALSE; |
252b5132 RH |
1698 | switch (dyn.d_tag) |
1699 | { | |
1700 | default: | |
ad9563d6 CM |
1701 | if (bed->elf_backend_get_target_dtag) |
1702 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1703 | ||
1704 | if (!strcmp (name, "")) | |
1705 | { | |
cd9af601 | 1706 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1707 | name = ab; |
1708 | } | |
252b5132 RH |
1709 | break; |
1710 | ||
b34976b6 | 1711 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1712 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1713 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1714 | case DT_HASH: name = "HASH"; break; | |
1715 | case DT_STRTAB: name = "STRTAB"; break; | |
1716 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1717 | case DT_RELA: name = "RELA"; break; | |
1718 | case DT_RELASZ: name = "RELASZ"; break; | |
1719 | case DT_RELAENT: name = "RELAENT"; break; | |
1720 | case DT_STRSZ: name = "STRSZ"; break; | |
1721 | case DT_SYMENT: name = "SYMENT"; break; | |
1722 | case DT_INIT: name = "INIT"; break; | |
1723 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1724 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1725 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1726 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1727 | case DT_REL: name = "REL"; break; | |
1728 | case DT_RELSZ: name = "RELSZ"; break; | |
1729 | case DT_RELENT: name = "RELENT"; break; | |
1730 | case DT_PLTREL: name = "PLTREL"; break; | |
1731 | case DT_DEBUG: name = "DEBUG"; break; | |
1732 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1733 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1734 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1735 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1736 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1737 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1738 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1739 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1740 | case DT_FLAGS: name = "FLAGS"; break; |
1741 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1742 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1743 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1744 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1745 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1746 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1747 | case DT_FEATURE: name = "FEATURE"; break; | |
1748 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1749 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1750 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1751 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1752 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1753 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1754 | case DT_PLTPAD: name = "PLTPAD"; break; |
1755 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1756 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1757 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1758 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1759 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1760 | case DT_VERSYM: name = "VERSYM"; break; |
1761 | case DT_VERDEF: name = "VERDEF"; break; | |
1762 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1763 | case DT_VERNEED: name = "VERNEED"; break; | |
1764 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1765 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1766 | case DT_USED: name = "USED"; break; |
b34976b6 | 1767 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1768 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1769 | } |
1770 | ||
ad9563d6 | 1771 | fprintf (f, " %-20s ", name); |
252b5132 | 1772 | if (! stringp) |
a1f3c56e AN |
1773 | { |
1774 | fprintf (f, "0x"); | |
1775 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1776 | } | |
252b5132 RH |
1777 | else |
1778 | { | |
1779 | const char *string; | |
dc810e39 | 1780 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1781 | |
dc810e39 | 1782 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1783 | if (string == NULL) |
1784 | goto error_return; | |
1785 | fprintf (f, "%s", string); | |
1786 | } | |
1787 | fprintf (f, "\n"); | |
1788 | } | |
1789 | ||
1790 | free (dynbuf); | |
1791 | dynbuf = NULL; | |
1792 | } | |
1793 | ||
1794 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1795 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1796 | { | |
fc0e6df6 | 1797 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1798 | return FALSE; |
252b5132 RH |
1799 | } |
1800 | ||
1801 | if (elf_dynverdef (abfd) != 0) | |
1802 | { | |
1803 | Elf_Internal_Verdef *t; | |
1804 | ||
1805 | fprintf (f, _("\nVersion definitions:\n")); | |
1806 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1807 | { | |
1808 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1809 | t->vd_flags, t->vd_hash, |
1810 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1811 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1812 | { |
1813 | Elf_Internal_Verdaux *a; | |
1814 | ||
1815 | fprintf (f, "\t"); | |
1816 | for (a = t->vd_auxptr->vda_nextptr; | |
1817 | a != NULL; | |
1818 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1819 | fprintf (f, "%s ", |
1820 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1821 | fprintf (f, "\n"); |
1822 | } | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | if (elf_dynverref (abfd) != 0) | |
1827 | { | |
1828 | Elf_Internal_Verneed *t; | |
1829 | ||
1830 | fprintf (f, _("\nVersion References:\n")); | |
1831 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1832 | { | |
1833 | Elf_Internal_Vernaux *a; | |
1834 | ||
d0fb9a8d JJ |
1835 | fprintf (f, _(" required from %s:\n"), |
1836 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1837 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1838 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1839 | a->vna_flags, a->vna_other, |
1840 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1841 | } |
1842 | } | |
1843 | ||
b34976b6 | 1844 | return TRUE; |
252b5132 RH |
1845 | |
1846 | error_return: | |
1847 | if (dynbuf != NULL) | |
1848 | free (dynbuf); | |
b34976b6 | 1849 | return FALSE; |
252b5132 RH |
1850 | } |
1851 | ||
bb4d2ac2 L |
1852 | /* Get version string. */ |
1853 | ||
1854 | const char * | |
60bb06bc L |
1855 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1856 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1857 | { |
1858 | const char *version_string = NULL; | |
1859 | if (elf_dynversym (abfd) != 0 | |
1860 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1861 | { | |
1862 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1863 | ||
1864 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1865 | vernum &= VERSYM_VERSION; | |
1866 | ||
1867 | if (vernum == 0) | |
1868 | version_string = ""; | |
1f6f5dba L |
1869 | else if (vernum == 1 |
1870 | && (vernum > elf_tdata (abfd)->cverdefs | |
1871 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1872 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1873 | version_string = "Base"; |
1874 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1875 | version_string = | |
1876 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1877 | else | |
1878 | { | |
1879 | Elf_Internal_Verneed *t; | |
1880 | ||
7a815dd5 | 1881 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1882 | for (t = elf_tdata (abfd)->verref; |
1883 | t != NULL; | |
1884 | t = t->vn_nextref) | |
1885 | { | |
1886 | Elf_Internal_Vernaux *a; | |
1887 | ||
1888 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1889 | { | |
1890 | if (a->vna_other == vernum) | |
1891 | { | |
1892 | version_string = a->vna_nodename; | |
1893 | break; | |
1894 | } | |
1895 | } | |
1896 | } | |
1897 | } | |
1898 | } | |
1899 | return version_string; | |
1900 | } | |
1901 | ||
252b5132 RH |
1902 | /* Display ELF-specific fields of a symbol. */ |
1903 | ||
1904 | void | |
217aa764 AM |
1905 | bfd_elf_print_symbol (bfd *abfd, |
1906 | void *filep, | |
1907 | asymbol *symbol, | |
1908 | bfd_print_symbol_type how) | |
252b5132 | 1909 | { |
a50b1753 | 1910 | FILE *file = (FILE *) filep; |
252b5132 RH |
1911 | switch (how) |
1912 | { | |
1913 | case bfd_print_symbol_name: | |
1914 | fprintf (file, "%s", symbol->name); | |
1915 | break; | |
1916 | case bfd_print_symbol_more: | |
1917 | fprintf (file, "elf "); | |
60b89a18 | 1918 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1919 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1920 | break; |
1921 | case bfd_print_symbol_all: | |
1922 | { | |
4e8a9624 AM |
1923 | const char *section_name; |
1924 | const char *name = NULL; | |
9c5bfbb7 | 1925 | const struct elf_backend_data *bed; |
7a13edea | 1926 | unsigned char st_other; |
dbb410c3 | 1927 | bfd_vma val; |
bb4d2ac2 L |
1928 | const char *version_string; |
1929 | bfd_boolean hidden; | |
c044fabd | 1930 | |
252b5132 | 1931 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1932 | |
1933 | bed = get_elf_backend_data (abfd); | |
1934 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1935 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1936 | |
1937 | if (name == NULL) | |
1938 | { | |
7ee38065 | 1939 | name = symbol->name; |
217aa764 | 1940 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1941 | } |
1942 | ||
252b5132 RH |
1943 | fprintf (file, " %s\t", section_name); |
1944 | /* Print the "other" value for a symbol. For common symbols, | |
1945 | we've already printed the size; now print the alignment. | |
1946 | For other symbols, we have no specified alignment, and | |
1947 | we've printed the address; now print the size. */ | |
dcf6c779 | 1948 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1949 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1950 | else | |
1951 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1952 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1953 | |
1954 | /* If we have version information, print it. */ | |
60bb06bc L |
1955 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1956 | symbol, | |
1957 | &hidden); | |
bb4d2ac2 | 1958 | if (version_string) |
252b5132 | 1959 | { |
bb4d2ac2 | 1960 | if (!hidden) |
252b5132 RH |
1961 | fprintf (file, " %-11s", version_string); |
1962 | else | |
1963 | { | |
1964 | int i; | |
1965 | ||
1966 | fprintf (file, " (%s)", version_string); | |
1967 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1968 | putc (' ', file); | |
1969 | } | |
1970 | } | |
1971 | ||
1972 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1973 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1974 | |
7a13edea NC |
1975 | switch (st_other) |
1976 | { | |
1977 | case 0: break; | |
1978 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1979 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1980 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1981 | default: | |
1982 | /* Some other non-defined flags are also present, so print | |
1983 | everything hex. */ | |
1984 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1985 | } | |
252b5132 | 1986 | |
587ff49e | 1987 | fprintf (file, " %s", name); |
252b5132 RH |
1988 | } |
1989 | break; | |
1990 | } | |
1991 | } | |
252b5132 RH |
1992 | \f |
1993 | /* ELF .o/exec file reading */ | |
1994 | ||
c044fabd | 1995 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1996 | |
b34976b6 | 1997 | bfd_boolean |
217aa764 | 1998 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1999 | { |
4fbb74a6 AM |
2000 | Elf_Internal_Shdr *hdr; |
2001 | Elf_Internal_Ehdr *ehdr; | |
2002 | const struct elf_backend_data *bed; | |
90937f86 | 2003 | const char *name; |
bf67003b NC |
2004 | bfd_boolean ret = TRUE; |
2005 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2006 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2007 | static unsigned int nesting = 0; |
252b5132 | 2008 | |
4fbb74a6 AM |
2009 | if (shindex >= elf_numsections (abfd)) |
2010 | return FALSE; | |
2011 | ||
bf67003b NC |
2012 | if (++ nesting > 3) |
2013 | { | |
2014 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2015 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2016 | loop. Detect this here, by refusing to load a section that we are |
2017 | already in the process of loading. We only trigger this test if | |
2018 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2019 | can expect to recurse at least once. |
2020 | ||
2021 | FIXME: It would be better if this array was attached to the bfd, | |
2022 | rather than being held in a static pointer. */ | |
2023 | ||
2024 | if (sections_being_created_abfd != abfd) | |
2025 | sections_being_created = NULL; | |
bf67003b NC |
2026 | if (sections_being_created == NULL) |
2027 | { | |
2028 | /* FIXME: It would be more efficient to attach this array to the bfd somehow. */ | |
2029 | sections_being_created = (bfd_boolean *) | |
2030 | bfd_zalloc (abfd, elf_numsections (abfd) * sizeof (bfd_boolean)); | |
5a4b0ccc | 2031 | sections_being_created_abfd = abfd; |
bf67003b NC |
2032 | } |
2033 | if (sections_being_created [shindex]) | |
2034 | { | |
4eca0228 | 2035 | _bfd_error_handler |
871b3ab2 | 2036 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2037 | return FALSE; |
2038 | } | |
2039 | sections_being_created [shindex] = TRUE; | |
2040 | } | |
2041 | ||
4fbb74a6 AM |
2042 | hdr = elf_elfsections (abfd)[shindex]; |
2043 | ehdr = elf_elfheader (abfd); | |
2044 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2045 | hdr->sh_name); |
933d961a | 2046 | if (name == NULL) |
bf67003b | 2047 | goto fail; |
252b5132 | 2048 | |
4fbb74a6 | 2049 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2050 | switch (hdr->sh_type) |
2051 | { | |
2052 | case SHT_NULL: | |
2053 | /* Inactive section. Throw it away. */ | |
bf67003b | 2054 | goto success; |
252b5132 | 2055 | |
bf67003b NC |
2056 | case SHT_PROGBITS: /* Normal section with contents. */ |
2057 | case SHT_NOBITS: /* .bss section. */ | |
2058 | case SHT_HASH: /* .hash section. */ | |
2059 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2060 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2061 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2062 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2063 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2064 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2065 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2066 | goto success; | |
252b5132 | 2067 | |
797fc050 | 2068 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2069 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2070 | goto fail; |
2071 | ||
cfcac11d NC |
2072 | if (hdr->sh_link > elf_numsections (abfd)) |
2073 | { | |
caa83f8b | 2074 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2075 | field set to SHN_BEFORE or SHN_AFTER. */ |
2076 | switch (bfd_get_arch (abfd)) | |
2077 | { | |
caa83f8b | 2078 | case bfd_arch_i386: |
cfcac11d NC |
2079 | case bfd_arch_sparc: |
2080 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2081 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2082 | break; | |
2083 | /* Otherwise fall through. */ | |
2084 | default: | |
bf67003b | 2085 | goto fail; |
cfcac11d NC |
2086 | } |
2087 | } | |
2088 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2089 | goto fail; |
cfcac11d | 2090 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2091 | { |
2092 | Elf_Internal_Shdr *dynsymhdr; | |
2093 | ||
2094 | /* The shared libraries distributed with hpux11 have a bogus | |
2095 | sh_link field for the ".dynamic" section. Find the | |
2096 | string table for the ".dynsym" section instead. */ | |
2097 | if (elf_dynsymtab (abfd) != 0) | |
2098 | { | |
2099 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2100 | hdr->sh_link = dynsymhdr->sh_link; | |
2101 | } | |
2102 | else | |
2103 | { | |
2104 | unsigned int i, num_sec; | |
2105 | ||
2106 | num_sec = elf_numsections (abfd); | |
2107 | for (i = 1; i < num_sec; i++) | |
2108 | { | |
2109 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2110 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2111 | { | |
2112 | hdr->sh_link = dynsymhdr->sh_link; | |
2113 | break; | |
2114 | } | |
2115 | } | |
2116 | } | |
2117 | } | |
bf67003b | 2118 | goto success; |
797fc050 | 2119 | |
bf67003b | 2120 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2121 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2122 | goto success; |
252b5132 | 2123 | |
a50b2160 | 2124 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2125 | goto fail; |
2126 | ||
3337c1e5 | 2127 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2128 | { |
2129 | if (hdr->sh_size != 0) | |
bf67003b | 2130 | goto fail; |
eee3b786 AM |
2131 | /* Some assemblers erroneously set sh_info to one with a |
2132 | zero sh_size. ld sees this as a global symbol count | |
2133 | of (unsigned) -1. Fix it here. */ | |
2134 | hdr->sh_info = 0; | |
bf67003b | 2135 | goto success; |
eee3b786 | 2136 | } |
bf67003b | 2137 | |
16ad13ec NC |
2138 | /* PR 18854: A binary might contain more than one symbol table. |
2139 | Unusual, but possible. Warn, but continue. */ | |
2140 | if (elf_onesymtab (abfd) != 0) | |
2141 | { | |
4eca0228 | 2142 | _bfd_error_handler |
695344c0 | 2143 | /* xgettext:c-format */ |
871b3ab2 | 2144 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2145 | " - ignoring the table in section %u"), |
16ad13ec NC |
2146 | abfd, shindex); |
2147 | goto success; | |
2148 | } | |
252b5132 | 2149 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2150 | elf_symtab_hdr (abfd) = *hdr; |
2151 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2152 | abfd->flags |= HAS_SYMS; |
2153 | ||
2154 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2155 | SHF_ALLOC is set, and this is a shared object, then we also |
2156 | treat this section as a BFD section. We can not base the | |
2157 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2158 | set in a relocatable object file, which would confuse the | |
2159 | linker. */ | |
252b5132 RH |
2160 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2161 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2162 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2163 | shindex)) | |
bf67003b | 2164 | goto fail; |
252b5132 | 2165 | |
1b3a8575 AM |
2166 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2167 | can't read symbols without that section loaded as well. It | |
2168 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2169 | { |
2170 | elf_section_list * entry; | |
2171 | unsigned int i, num_sec; | |
1b3a8575 | 2172 | |
6a40cf0c NC |
2173 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2174 | if (entry->hdr.sh_link == shindex) | |
2175 | goto success; | |
2176 | ||
2177 | num_sec = elf_numsections (abfd); | |
2178 | for (i = shindex + 1; i < num_sec; i++) | |
2179 | { | |
2180 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2181 | ||
2182 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2183 | && hdr2->sh_link == shindex) | |
2184 | break; | |
2185 | } | |
2186 | ||
2187 | if (i == num_sec) | |
2188 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2189 | { |
2190 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2191 | |
1b3a8575 AM |
2192 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2193 | && hdr2->sh_link == shindex) | |
2194 | break; | |
2195 | } | |
6a40cf0c NC |
2196 | |
2197 | if (i != shindex) | |
2198 | ret = bfd_section_from_shdr (abfd, i); | |
2199 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2200 | goto success; | |
2201 | } | |
252b5132 | 2202 | |
bf67003b | 2203 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2204 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2205 | goto success; |
252b5132 | 2206 | |
a50b2160 | 2207 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2208 | goto fail; |
2209 | ||
eee3b786 AM |
2210 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2211 | { | |
2212 | if (hdr->sh_size != 0) | |
bf67003b NC |
2213 | goto fail; |
2214 | ||
eee3b786 AM |
2215 | /* Some linkers erroneously set sh_info to one with a |
2216 | zero sh_size. ld sees this as a global symbol count | |
2217 | of (unsigned) -1. Fix it here. */ | |
2218 | hdr->sh_info = 0; | |
bf67003b | 2219 | goto success; |
eee3b786 | 2220 | } |
bf67003b | 2221 | |
16ad13ec NC |
2222 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2223 | Unusual, but possible. Warn, but continue. */ | |
2224 | if (elf_dynsymtab (abfd) != 0) | |
2225 | { | |
4eca0228 | 2226 | _bfd_error_handler |
695344c0 | 2227 | /* xgettext:c-format */ |
871b3ab2 | 2228 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2229 | " - ignoring the table in section %u"), |
16ad13ec NC |
2230 | abfd, shindex); |
2231 | goto success; | |
2232 | } | |
252b5132 RH |
2233 | elf_dynsymtab (abfd) = shindex; |
2234 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2235 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2236 | abfd->flags |= HAS_SYMS; | |
2237 | ||
2238 | /* Besides being a symbol table, we also treat this as a regular | |
2239 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2240 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2241 | goto success; | |
252b5132 | 2242 | |
bf67003b | 2243 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2244 | { |
2245 | elf_section_list * entry; | |
9ad5cbcf | 2246 | |
6a40cf0c NC |
2247 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2248 | if (entry->ndx == shindex) | |
2249 | goto success; | |
07d6d2b8 | 2250 | |
6a40cf0c NC |
2251 | entry = bfd_alloc (abfd, sizeof * entry); |
2252 | if (entry == NULL) | |
2253 | goto fail; | |
2254 | entry->ndx = shindex; | |
2255 | entry->hdr = * hdr; | |
2256 | entry->next = elf_symtab_shndx_list (abfd); | |
2257 | elf_symtab_shndx_list (abfd) = entry; | |
2258 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2259 | goto success; | |
2260 | } | |
9ad5cbcf | 2261 | |
bf67003b | 2262 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2263 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2264 | goto success; |
2265 | ||
252b5132 RH |
2266 | if (ehdr->e_shstrndx == shindex) |
2267 | { | |
2268 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2269 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2270 | goto success; |
252b5132 | 2271 | } |
bf67003b | 2272 | |
1b3a8575 AM |
2273 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2274 | { | |
2275 | symtab_strtab: | |
2276 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2277 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2278 | goto success; |
1b3a8575 | 2279 | } |
bf67003b | 2280 | |
1b3a8575 AM |
2281 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2282 | { | |
2283 | dynsymtab_strtab: | |
2284 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2285 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2286 | elf_elfsections (abfd)[shindex] = hdr; | |
2287 | /* We also treat this as a regular section, so that objcopy | |
2288 | can handle it. */ | |
bf67003b NC |
2289 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2290 | shindex); | |
2291 | goto success; | |
1b3a8575 | 2292 | } |
252b5132 | 2293 | |
1b3a8575 AM |
2294 | /* If the string table isn't one of the above, then treat it as a |
2295 | regular section. We need to scan all the headers to be sure, | |
2296 | just in case this strtab section appeared before the above. */ | |
2297 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2298 | { | |
2299 | unsigned int i, num_sec; | |
252b5132 | 2300 | |
1b3a8575 AM |
2301 | num_sec = elf_numsections (abfd); |
2302 | for (i = 1; i < num_sec; i++) | |
2303 | { | |
2304 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2305 | if (hdr2->sh_link == shindex) | |
2306 | { | |
933d961a JJ |
2307 | /* Prevent endless recursion on broken objects. */ |
2308 | if (i == shindex) | |
bf67003b | 2309 | goto fail; |
1b3a8575 | 2310 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2311 | goto fail; |
1b3a8575 AM |
2312 | if (elf_onesymtab (abfd) == i) |
2313 | goto symtab_strtab; | |
2314 | if (elf_dynsymtab (abfd) == i) | |
2315 | goto dynsymtab_strtab; | |
2316 | } | |
2317 | } | |
2318 | } | |
bf67003b NC |
2319 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2320 | goto success; | |
252b5132 RH |
2321 | |
2322 | case SHT_REL: | |
2323 | case SHT_RELA: | |
2324 | /* *These* do a lot of work -- but build no sections! */ | |
2325 | { | |
2326 | asection *target_sect; | |
d4730f92 | 2327 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2328 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2329 | struct bfd_elf_section_data *esdt; |
252b5132 | 2330 | |
aa2ca951 JJ |
2331 | if (hdr->sh_entsize |
2332 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2333 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2334 | goto fail; |
a50b2160 | 2335 | |
03ae5f59 | 2336 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2337 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2338 | { |
4eca0228 | 2339 | _bfd_error_handler |
695344c0 | 2340 | /* xgettext:c-format */ |
871b3ab2 | 2341 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2342 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2343 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2344 | shindex); | |
2345 | goto success; | |
03ae5f59 ILT |
2346 | } |
2347 | ||
252b5132 RH |
2348 | /* For some incomprehensible reason Oracle distributes |
2349 | libraries for Solaris in which some of the objects have | |
2350 | bogus sh_link fields. It would be nice if we could just | |
2351 | reject them, but, unfortunately, some people need to use | |
2352 | them. We scan through the section headers; if we find only | |
2353 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2354 | to it. I hope this doesn't break anything. |
2355 | ||
2356 | Don't do it on executable nor shared library. */ | |
2357 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2358 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2359 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2360 | { | |
9ad5cbcf | 2361 | unsigned int scan; |
252b5132 RH |
2362 | int found; |
2363 | ||
2364 | found = 0; | |
9ad5cbcf | 2365 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2366 | { |
2367 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2368 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2369 | { | |
2370 | if (found != 0) | |
2371 | { | |
2372 | found = 0; | |
2373 | break; | |
2374 | } | |
2375 | found = scan; | |
2376 | } | |
2377 | } | |
2378 | if (found != 0) | |
2379 | hdr->sh_link = found; | |
2380 | } | |
2381 | ||
2382 | /* Get the symbol table. */ | |
1b3a8575 AM |
2383 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2384 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2385 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2386 | goto fail; |
252b5132 | 2387 | |
a4bcd733 AM |
2388 | /* If this is an alloc section in an executable or shared |
2389 | library, or the reloc section does not use the main symbol | |
2390 | table we don't treat it as a reloc section. BFD can't | |
2391 | adequately represent such a section, so at least for now, | |
2392 | we don't try. We just present it as a normal section. We | |
2393 | also can't use it as a reloc section if it points to the | |
2394 | null section, an invalid section, another reloc section, or | |
2395 | its sh_link points to the null section. */ | |
2396 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2397 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2398 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2399 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2400 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2401 | || hdr->sh_info >= num_sec |
2402 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2403 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2404 | { |
2405 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2406 | shindex); | |
2407 | goto success; | |
2408 | } | |
252b5132 RH |
2409 | |
2410 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2411 | goto fail; |
2412 | ||
252b5132 RH |
2413 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2414 | if (target_sect == NULL) | |
bf67003b | 2415 | goto fail; |
252b5132 | 2416 | |
d4730f92 BS |
2417 | esdt = elf_section_data (target_sect); |
2418 | if (hdr->sh_type == SHT_RELA) | |
2419 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2420 | else |
d4730f92 BS |
2421 | p_hdr = &esdt->rel.hdr; |
2422 | ||
06614111 NC |
2423 | /* PR 17512: file: 0b4f81b7. */ |
2424 | if (*p_hdr != NULL) | |
2425 | goto fail; | |
ef53be89 | 2426 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2427 | if (hdr2 == NULL) |
bf67003b | 2428 | goto fail; |
252b5132 | 2429 | *hdr2 = *hdr; |
d4730f92 | 2430 | *p_hdr = hdr2; |
252b5132 | 2431 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2432 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2433 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2434 | target_sect->flags |= SEC_RELOC; |
2435 | target_sect->relocation = NULL; | |
2436 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2437 | /* In the section to which the relocations apply, mark whether |
2438 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2439 | if (hdr->sh_size != 0) |
d4730f92 BS |
2440 | { |
2441 | if (hdr->sh_type == SHT_RELA) | |
2442 | target_sect->use_rela_p = 1; | |
2443 | } | |
252b5132 | 2444 | abfd->flags |= HAS_RELOC; |
bf67003b | 2445 | goto success; |
252b5132 | 2446 | } |
252b5132 RH |
2447 | |
2448 | case SHT_GNU_verdef: | |
2449 | elf_dynverdef (abfd) = shindex; | |
2450 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2451 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2452 | goto success; | |
252b5132 RH |
2453 | |
2454 | case SHT_GNU_versym: | |
a50b2160 | 2455 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2456 | goto fail; |
2457 | ||
252b5132 RH |
2458 | elf_dynversym (abfd) = shindex; |
2459 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2460 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2461 | goto success; | |
252b5132 RH |
2462 | |
2463 | case SHT_GNU_verneed: | |
2464 | elf_dynverref (abfd) = shindex; | |
2465 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2466 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2467 | goto success; | |
252b5132 RH |
2468 | |
2469 | case SHT_SHLIB: | |
bf67003b | 2470 | goto success; |
252b5132 | 2471 | |
dbb410c3 | 2472 | case SHT_GROUP: |
44534af3 | 2473 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2474 | goto fail; |
2475 | ||
6dc132d9 | 2476 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2477 | goto fail; |
2478 | ||
bf67003b | 2479 | goto success; |
dbb410c3 | 2480 | |
252b5132 | 2481 | default: |
104d59d1 JM |
2482 | /* Possibly an attributes section. */ |
2483 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2484 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2485 | { | |
2486 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2487 | goto fail; |
104d59d1 | 2488 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2489 | goto success; |
104d59d1 JM |
2490 | } |
2491 | ||
252b5132 | 2492 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2493 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2494 | goto success; |
3eb70a79 L |
2495 | |
2496 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2497 | { | |
2498 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2499 | /* FIXME: How to properly handle allocated section reserved | |
2500 | for applications? */ | |
4eca0228 | 2501 | _bfd_error_handler |
695344c0 | 2502 | /* xgettext:c-format */ |
871b3ab2 | 2503 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2504 | abfd, hdr->sh_type, name); |
3eb70a79 | 2505 | else |
bf67003b NC |
2506 | { |
2507 | /* Allow sections reserved for applications. */ | |
2508 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2509 | shindex); | |
2510 | goto success; | |
2511 | } | |
3eb70a79 L |
2512 | } |
2513 | else if (hdr->sh_type >= SHT_LOPROC | |
2514 | && hdr->sh_type <= SHT_HIPROC) | |
2515 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2516 | _bfd_error_handler |
695344c0 | 2517 | /* xgettext:c-format */ |
871b3ab2 | 2518 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2519 | abfd, hdr->sh_type, name); |
3eb70a79 | 2520 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2521 | { |
2522 | /* Unrecognised OS-specific sections. */ | |
2523 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2524 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2525 | required to correctly process the section and the file should |
ff15b240 | 2526 | be rejected with an error message. */ |
4eca0228 | 2527 | _bfd_error_handler |
695344c0 | 2528 | /* xgettext:c-format */ |
871b3ab2 | 2529 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2530 | abfd, hdr->sh_type, name); |
ff15b240 | 2531 | else |
bf67003b NC |
2532 | { |
2533 | /* Otherwise it should be processed. */ | |
2534 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2535 | goto success; | |
2536 | } | |
ff15b240 | 2537 | } |
3eb70a79 L |
2538 | else |
2539 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2540 | _bfd_error_handler |
695344c0 | 2541 | /* xgettext:c-format */ |
871b3ab2 | 2542 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2543 | abfd, hdr->sh_type, name); |
3eb70a79 | 2544 | |
bf67003b | 2545 | goto fail; |
252b5132 RH |
2546 | } |
2547 | ||
bf67003b NC |
2548 | fail: |
2549 | ret = FALSE; | |
2550 | success: | |
e5b470e2 | 2551 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2552 | sections_being_created [shindex] = FALSE; |
2553 | if (-- nesting == 0) | |
5a4b0ccc NC |
2554 | { |
2555 | sections_being_created = NULL; | |
2556 | sections_being_created_abfd = abfd; | |
2557 | } | |
bf67003b | 2558 | return ret; |
252b5132 RH |
2559 | } |
2560 | ||
87d72d41 | 2561 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2562 | |
87d72d41 AM |
2563 | Elf_Internal_Sym * |
2564 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2565 | bfd *abfd, | |
2566 | unsigned long r_symndx) | |
ec338859 | 2567 | { |
ec338859 AM |
2568 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2569 | ||
a5d1b3b5 AM |
2570 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2571 | { | |
2572 | Elf_Internal_Shdr *symtab_hdr; | |
2573 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2574 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2575 | |
a5d1b3b5 AM |
2576 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2577 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2578 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2579 | return NULL; |
9ad5cbcf | 2580 | |
a5d1b3b5 AM |
2581 | if (cache->abfd != abfd) |
2582 | { | |
2583 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2584 | cache->abfd = abfd; | |
2585 | } | |
2586 | cache->indx[ent] = r_symndx; | |
ec338859 | 2587 | } |
a5d1b3b5 | 2588 | |
87d72d41 | 2589 | return &cache->sym[ent]; |
ec338859 AM |
2590 | } |
2591 | ||
252b5132 RH |
2592 | /* Given an ELF section number, retrieve the corresponding BFD |
2593 | section. */ | |
2594 | ||
2595 | asection * | |
91d6fa6a | 2596 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2597 | { |
91d6fa6a | 2598 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2599 | return NULL; |
91d6fa6a | 2600 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2601 | } |
2602 | ||
b35d266b | 2603 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2604 | { |
0112cd26 | 2605 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2606 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2607 | }; |
2608 | ||
b35d266b | 2609 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2610 | { |
0112cd26 | 2611 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2612 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2613 | }; |
2614 | ||
b35d266b | 2615 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2616 | { |
07d6d2b8 AM |
2617 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2618 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2619 | /* There are more DWARF sections than these, but they needn't be added here |
2620 | unless you have to cope with broken compilers that don't emit section | |
2621 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2622 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2623 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2624 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2625 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2626 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2627 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2628 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2629 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2630 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2631 | }; |
2632 | ||
b35d266b | 2633 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2634 | { |
07d6d2b8 | 2635 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2636 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2637 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2638 | }; |
2639 | ||
b35d266b | 2640 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2641 | { |
0112cd26 | 2642 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2643 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2644 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2645 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2646 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2647 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2648 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2649 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2650 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2651 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2652 | }; |
2653 | ||
b35d266b | 2654 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2655 | { |
07d6d2b8 AM |
2656 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2657 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2658 | }; |
2659 | ||
b35d266b | 2660 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2661 | { |
07d6d2b8 | 2662 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2663 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2664 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2665 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2666 | }; |
2667 | ||
b35d266b | 2668 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2669 | { |
0112cd26 | 2670 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2671 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2672 | }; |
2673 | ||
b35d266b | 2674 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2675 | { |
0112cd26 | 2676 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2677 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2678 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2679 | }; |
2680 | ||
b35d266b | 2681 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2682 | { |
6f9dbcd4 | 2683 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2684 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2685 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2686 | }; |
2687 | ||
b35d266b | 2688 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2689 | { |
0112cd26 NC |
2690 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2691 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2692 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2693 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2694 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2695 | }; |
2696 | ||
b35d266b | 2697 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2698 | { |
0112cd26 NC |
2699 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2700 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2701 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2702 | /* See struct bfd_elf_special_section declaration for the semantics of |
2703 | this special case where .prefix_length != strlen (.prefix). */ | |
2704 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2705 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2706 | }; |
2707 | ||
b35d266b | 2708 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2709 | { |
07d6d2b8 AM |
2710 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2711 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2712 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2713 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2714 | }; |
2715 | ||
1b315056 CS |
2716 | static const struct bfd_elf_special_section special_sections_z[] = |
2717 | { | |
07d6d2b8 AM |
2718 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2719 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2720 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2721 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2722 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2723 | }; |
2724 | ||
e4c93b56 | 2725 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2726 | { |
7f4d3958 | 2727 | special_sections_b, /* 'b' */ |
98ece1b3 | 2728 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2729 | special_sections_d, /* 'd' */ |
2730 | NULL, /* 'e' */ | |
2731 | special_sections_f, /* 'f' */ | |
2732 | special_sections_g, /* 'g' */ | |
2733 | special_sections_h, /* 'h' */ | |
2734 | special_sections_i, /* 'i' */ | |
2735 | NULL, /* 'j' */ | |
2736 | NULL, /* 'k' */ | |
2737 | special_sections_l, /* 'l' */ | |
2738 | NULL, /* 'm' */ | |
2739 | special_sections_n, /* 'n' */ | |
2740 | NULL, /* 'o' */ | |
2741 | special_sections_p, /* 'p' */ | |
2742 | NULL, /* 'q' */ | |
2743 | special_sections_r, /* 'r' */ | |
2744 | special_sections_s, /* 's' */ | |
2745 | special_sections_t, /* 't' */ | |
1b315056 CS |
2746 | NULL, /* 'u' */ |
2747 | NULL, /* 'v' */ | |
2748 | NULL, /* 'w' */ | |
2749 | NULL, /* 'x' */ | |
2750 | NULL, /* 'y' */ | |
2751 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2752 | }; |
2753 | ||
551b43fd AM |
2754 | const struct bfd_elf_special_section * |
2755 | _bfd_elf_get_special_section (const char *name, | |
2756 | const struct bfd_elf_special_section *spec, | |
2757 | unsigned int rela) | |
2f89ff8d L |
2758 | { |
2759 | int i; | |
7f4d3958 | 2760 | int len; |
7f4d3958 | 2761 | |
551b43fd | 2762 | len = strlen (name); |
7f4d3958 | 2763 | |
551b43fd | 2764 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2765 | { |
2766 | int suffix_len; | |
551b43fd | 2767 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2768 | |
2769 | if (len < prefix_len) | |
2770 | continue; | |
551b43fd | 2771 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2772 | continue; |
2773 | ||
551b43fd | 2774 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2775 | if (suffix_len <= 0) |
2776 | { | |
2777 | if (name[prefix_len] != 0) | |
2778 | { | |
2779 | if (suffix_len == 0) | |
2780 | continue; | |
2781 | if (name[prefix_len] != '.' | |
2782 | && (suffix_len == -2 | |
551b43fd | 2783 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2784 | continue; |
2785 | } | |
2786 | } | |
2787 | else | |
2788 | { | |
2789 | if (len < prefix_len + suffix_len) | |
2790 | continue; | |
2791 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2792 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2793 | suffix_len) != 0) |
2794 | continue; | |
2795 | } | |
551b43fd | 2796 | return &spec[i]; |
7dcb9820 | 2797 | } |
2f89ff8d L |
2798 | |
2799 | return NULL; | |
2800 | } | |
2801 | ||
7dcb9820 | 2802 | const struct bfd_elf_special_section * |
29ef7005 | 2803 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2804 | { |
551b43fd AM |
2805 | int i; |
2806 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2807 | const struct elf_backend_data *bed; |
2f89ff8d L |
2808 | |
2809 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2810 | if (sec->name == NULL) |
2811 | return NULL; | |
2f89ff8d | 2812 | |
29ef7005 L |
2813 | bed = get_elf_backend_data (abfd); |
2814 | spec = bed->special_sections; | |
2815 | if (spec) | |
2816 | { | |
2817 | spec = _bfd_elf_get_special_section (sec->name, | |
2818 | bed->special_sections, | |
2819 | sec->use_rela_p); | |
2820 | if (spec != NULL) | |
2821 | return spec; | |
2822 | } | |
2823 | ||
551b43fd AM |
2824 | if (sec->name[0] != '.') |
2825 | return NULL; | |
2f89ff8d | 2826 | |
551b43fd | 2827 | i = sec->name[1] - 'b'; |
1b315056 | 2828 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2829 | return NULL; |
2830 | ||
2831 | spec = special_sections[i]; | |
2f89ff8d | 2832 | |
551b43fd AM |
2833 | if (spec == NULL) |
2834 | return NULL; | |
2835 | ||
2836 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2837 | } |
2838 | ||
b34976b6 | 2839 | bfd_boolean |
217aa764 | 2840 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2841 | { |
2842 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2843 | const struct elf_backend_data *bed; |
7dcb9820 | 2844 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2845 | |
f0abc2a1 AM |
2846 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2847 | if (sdata == NULL) | |
2848 | { | |
a50b1753 | 2849 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2850 | sizeof (*sdata)); |
f0abc2a1 AM |
2851 | if (sdata == NULL) |
2852 | return FALSE; | |
217aa764 | 2853 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2854 | } |
bf572ba0 | 2855 | |
551b43fd AM |
2856 | /* Indicate whether or not this section should use RELA relocations. */ |
2857 | bed = get_elf_backend_data (abfd); | |
2858 | sec->use_rela_p = bed->default_use_rela_p; | |
2859 | ||
e843e0f8 L |
2860 | /* When we read a file, we don't need to set ELF section type and |
2861 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2862 | anyway. We will set ELF section type and flags for all linker | |
2863 | created sections. If user specifies BFD section flags, we will | |
2864 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2865 | elf_fake_sections. Special handling for .init_array/.fini_array |
2866 | output sections since they may contain .ctors/.dtors input | |
2867 | sections. We don't want _bfd_elf_init_private_section_data to | |
2868 | copy ELF section type from .ctors/.dtors input sections. */ | |
2869 | if (abfd->direction != read_direction | |
3496cb2a | 2870 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2871 | { |
551b43fd | 2872 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2873 | if (ssect != NULL |
2874 | && (!sec->flags | |
2875 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2876 | || ssect->type == SHT_INIT_ARRAY | |
2877 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2878 | { |
2879 | elf_section_type (sec) = ssect->type; | |
2880 | elf_section_flags (sec) = ssect->attr; | |
2881 | } | |
2f89ff8d L |
2882 | } |
2883 | ||
f592407e | 2884 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2885 | } |
2886 | ||
2887 | /* Create a new bfd section from an ELF program header. | |
2888 | ||
2889 | Since program segments have no names, we generate a synthetic name | |
2890 | of the form segment<NUM>, where NUM is generally the index in the | |
2891 | program header table. For segments that are split (see below) we | |
2892 | generate the names segment<NUM>a and segment<NUM>b. | |
2893 | ||
2894 | Note that some program segments may have a file size that is different than | |
2895 | (less than) the memory size. All this means is that at execution the | |
2896 | system must allocate the amount of memory specified by the memory size, | |
2897 | but only initialize it with the first "file size" bytes read from the | |
2898 | file. This would occur for example, with program segments consisting | |
2899 | of combined data+bss. | |
2900 | ||
2901 | To handle the above situation, this routine generates TWO bfd sections | |
2902 | for the single program segment. The first has the length specified by | |
2903 | the file size of the segment, and the second has the length specified | |
2904 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2905 | into its initialized and uninitialized parts. |
252b5132 RH |
2906 | |
2907 | */ | |
2908 | ||
b34976b6 | 2909 | bfd_boolean |
217aa764 AM |
2910 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2911 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2912 | int hdr_index, |
a50b1753 | 2913 | const char *type_name) |
252b5132 RH |
2914 | { |
2915 | asection *newsect; | |
2916 | char *name; | |
2917 | char namebuf[64]; | |
d4c88bbb | 2918 | size_t len; |
252b5132 RH |
2919 | int split; |
2920 | ||
2921 | split = ((hdr->p_memsz > 0) | |
2922 | && (hdr->p_filesz > 0) | |
2923 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2924 | |
2925 | if (hdr->p_filesz > 0) | |
252b5132 | 2926 | { |
91d6fa6a | 2927 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2928 | len = strlen (namebuf) + 1; |
a50b1753 | 2929 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2930 | if (!name) |
2931 | return FALSE; | |
2932 | memcpy (name, namebuf, len); | |
2933 | newsect = bfd_make_section (abfd, name); | |
2934 | if (newsect == NULL) | |
2935 | return FALSE; | |
2936 | newsect->vma = hdr->p_vaddr; | |
2937 | newsect->lma = hdr->p_paddr; | |
2938 | newsect->size = hdr->p_filesz; | |
2939 | newsect->filepos = hdr->p_offset; | |
2940 | newsect->flags |= SEC_HAS_CONTENTS; | |
2941 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2942 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2943 | { |
d5191d0c AM |
2944 | newsect->flags |= SEC_ALLOC; |
2945 | newsect->flags |= SEC_LOAD; | |
2946 | if (hdr->p_flags & PF_X) | |
2947 | { | |
2948 | /* FIXME: all we known is that it has execute PERMISSION, | |
2949 | may be data. */ | |
2950 | newsect->flags |= SEC_CODE; | |
2951 | } | |
2952 | } | |
2953 | if (!(hdr->p_flags & PF_W)) | |
2954 | { | |
2955 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2956 | } |
252b5132 RH |
2957 | } |
2958 | ||
d5191d0c | 2959 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2960 | { |
d5191d0c AM |
2961 | bfd_vma align; |
2962 | ||
91d6fa6a | 2963 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2964 | len = strlen (namebuf) + 1; |
a50b1753 | 2965 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2966 | if (!name) |
b34976b6 | 2967 | return FALSE; |
d4c88bbb | 2968 | memcpy (name, namebuf, len); |
252b5132 RH |
2969 | newsect = bfd_make_section (abfd, name); |
2970 | if (newsect == NULL) | |
b34976b6 | 2971 | return FALSE; |
252b5132 RH |
2972 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2973 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2974 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2975 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2976 | align = newsect->vma & -newsect->vma; | |
2977 | if (align == 0 || align > hdr->p_align) | |
2978 | align = hdr->p_align; | |
2979 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2980 | if (hdr->p_type == PT_LOAD) |
2981 | { | |
d5191d0c AM |
2982 | /* Hack for gdb. Segments that have not been modified do |
2983 | not have their contents written to a core file, on the | |
2984 | assumption that a debugger can find the contents in the | |
2985 | executable. We flag this case by setting the fake | |
2986 | section size to zero. Note that "real" bss sections will | |
2987 | always have their contents dumped to the core file. */ | |
2988 | if (bfd_get_format (abfd) == bfd_core) | |
2989 | newsect->size = 0; | |
252b5132 RH |
2990 | newsect->flags |= SEC_ALLOC; |
2991 | if (hdr->p_flags & PF_X) | |
2992 | newsect->flags |= SEC_CODE; | |
2993 | } | |
2994 | if (!(hdr->p_flags & PF_W)) | |
2995 | newsect->flags |= SEC_READONLY; | |
2996 | } | |
2997 | ||
b34976b6 | 2998 | return TRUE; |
252b5132 RH |
2999 | } |
3000 | ||
b34976b6 | 3001 | bfd_boolean |
91d6fa6a | 3002 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3003 | { |
9c5bfbb7 | 3004 | const struct elf_backend_data *bed; |
20cfcaae NC |
3005 | |
3006 | switch (hdr->p_type) | |
3007 | { | |
3008 | case PT_NULL: | |
91d6fa6a | 3009 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3010 | |
3011 | case PT_LOAD: | |
91d6fa6a | 3012 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
3013 | |
3014 | case PT_DYNAMIC: | |
91d6fa6a | 3015 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3016 | |
3017 | case PT_INTERP: | |
91d6fa6a | 3018 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3019 | |
3020 | case PT_NOTE: | |
91d6fa6a | 3021 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3022 | return FALSE; |
276da9b3 L |
3023 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3024 | hdr->p_align)) | |
b34976b6 AM |
3025 | return FALSE; |
3026 | return TRUE; | |
20cfcaae NC |
3027 | |
3028 | case PT_SHLIB: | |
91d6fa6a | 3029 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3030 | |
3031 | case PT_PHDR: | |
91d6fa6a | 3032 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3033 | |
811072d8 | 3034 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3035 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3036 | "eh_frame_hdr"); |
3037 | ||
2b05f1b7 | 3038 | case PT_GNU_STACK: |
91d6fa6a | 3039 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3040 | |
8c37241b | 3041 | case PT_GNU_RELRO: |
91d6fa6a | 3042 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3043 | |
20cfcaae | 3044 | default: |
8c1acd09 | 3045 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3046 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3047 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3048 | } |
3049 | } | |
3050 | ||
d4730f92 BS |
3051 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3052 | REL or RELA. */ | |
3053 | ||
3054 | Elf_Internal_Shdr * | |
3055 | _bfd_elf_single_rel_hdr (asection *sec) | |
3056 | { | |
3057 | if (elf_section_data (sec)->rel.hdr) | |
3058 | { | |
3059 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3060 | return elf_section_data (sec)->rel.hdr; | |
3061 | } | |
3062 | else | |
3063 | return elf_section_data (sec)->rela.hdr; | |
3064 | } | |
3065 | ||
3e19fb8f L |
3066 | static bfd_boolean |
3067 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3068 | Elf_Internal_Shdr *rel_hdr, | |
3069 | const char *sec_name, | |
3070 | bfd_boolean use_rela_p) | |
3071 | { | |
3072 | char *name = (char *) bfd_alloc (abfd, | |
3073 | sizeof ".rela" + strlen (sec_name)); | |
3074 | if (name == NULL) | |
3075 | return FALSE; | |
3076 | ||
3077 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3078 | rel_hdr->sh_name = | |
3079 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3080 | FALSE); | |
3081 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3082 | return FALSE; | |
3083 | ||
3084 | return TRUE; | |
3085 | } | |
3086 | ||
d4730f92 BS |
3087 | /* Allocate and initialize a section-header for a new reloc section, |
3088 | containing relocations against ASECT. It is stored in RELDATA. If | |
3089 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3090 | relocations. */ | |
23bc299b | 3091 | |
5d13b3b3 | 3092 | static bfd_boolean |
217aa764 | 3093 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3094 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3095 | const char *sec_name, |
3e19fb8f L |
3096 | bfd_boolean use_rela_p, |
3097 | bfd_boolean delay_st_name_p) | |
23bc299b | 3098 | { |
d4730f92 | 3099 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3100 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3101 | |
d4730f92 | 3102 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3103 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3104 | reldata->hdr = rel_hdr; |
23bc299b | 3105 | |
3e19fb8f L |
3106 | if (delay_st_name_p) |
3107 | rel_hdr->sh_name = (unsigned int) -1; | |
3108 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3109 | use_rela_p)) | |
b34976b6 | 3110 | return FALSE; |
23bc299b MM |
3111 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3112 | rel_hdr->sh_entsize = (use_rela_p | |
3113 | ? bed->s->sizeof_rela | |
3114 | : bed->s->sizeof_rel); | |
72de5009 | 3115 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3116 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3117 | rel_hdr->sh_addr = 0; |
3118 | rel_hdr->sh_size = 0; | |
3119 | rel_hdr->sh_offset = 0; | |
3120 | ||
b34976b6 | 3121 | return TRUE; |
23bc299b MM |
3122 | } |
3123 | ||
94be91de JB |
3124 | /* Return the default section type based on the passed in section flags. */ |
3125 | ||
3126 | int | |
3127 | bfd_elf_get_default_section_type (flagword flags) | |
3128 | { | |
3129 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 3130 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3131 | return SHT_NOBITS; |
3132 | return SHT_PROGBITS; | |
3133 | } | |
3134 | ||
d4730f92 BS |
3135 | struct fake_section_arg |
3136 | { | |
3137 | struct bfd_link_info *link_info; | |
3138 | bfd_boolean failed; | |
3139 | }; | |
3140 | ||
252b5132 RH |
3141 | /* Set up an ELF internal section header for a section. */ |
3142 | ||
252b5132 | 3143 | static void |
d4730f92 | 3144 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3145 | { |
d4730f92 | 3146 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3147 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3148 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3149 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3150 | unsigned int sh_type; |
0ce398f1 | 3151 | const char *name = asect->name; |
3e19fb8f | 3152 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3153 | |
d4730f92 | 3154 | if (arg->failed) |
252b5132 RH |
3155 | { |
3156 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3157 | loop. */ |
252b5132 RH |
3158 | return; |
3159 | } | |
3160 | ||
d4730f92 | 3161 | this_hdr = &esd->this_hdr; |
252b5132 | 3162 | |
f6fe1ccd | 3163 | if (arg->link_info) |
0ce398f1 | 3164 | { |
f6fe1ccd L |
3165 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3166 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3167 | && (asect->flags & SEC_DEBUGGING) | |
3168 | && name[1] == 'd' | |
3169 | && name[6] == '_') | |
3170 | { | |
3171 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3172 | compressed. */ | |
3173 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3174 | |
dd905818 | 3175 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3176 | name to section name section after it is compressed in |
3177 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3178 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3179 | } |
3180 | } | |
3181 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3182 | { | |
3183 | /* objcopy: rename output DWARF debug section. */ | |
3184 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3185 | { | |
3186 | /* When we decompress or compress with SHF_COMPRESSED, | |
3187 | convert section name from .zdebug_* to .debug_* if | |
3188 | needed. */ | |
3189 | if (name[1] == 'z') | |
3190 | { | |
3191 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3192 | if (new_name == NULL) | |
3193 | { | |
3194 | arg->failed = TRUE; | |
3195 | return; | |
3196 | } | |
3197 | name = new_name; | |
3198 | } | |
3199 | } | |
3200 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3201 | { |
f6fe1ccd L |
3202 | /* PR binutils/18087: Compression does not always make a |
3203 | section smaller. So only rename the section when | |
3204 | compression has actually taken place. If input section | |
3205 | name is .zdebug_*, we should never compress it again. */ | |
3206 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3207 | if (new_name == NULL) |
3208 | { | |
3209 | arg->failed = TRUE; | |
3210 | return; | |
3211 | } | |
f6fe1ccd L |
3212 | BFD_ASSERT (name[1] != 'z'); |
3213 | name = new_name; | |
0ce398f1 L |
3214 | } |
3215 | } | |
3216 | ||
3e19fb8f L |
3217 | if (delay_st_name_p) |
3218 | this_hdr->sh_name = (unsigned int) -1; | |
3219 | else | |
252b5132 | 3220 | { |
3e19fb8f L |
3221 | this_hdr->sh_name |
3222 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3223 | name, FALSE); | |
3224 | if (this_hdr->sh_name == (unsigned int) -1) | |
3225 | { | |
3226 | arg->failed = TRUE; | |
3227 | return; | |
3228 | } | |
252b5132 RH |
3229 | } |
3230 | ||
a4d8e49b | 3231 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3232 | |
3233 | if ((asect->flags & SEC_ALLOC) != 0 | |
3234 | || asect->user_set_vma) | |
3235 | this_hdr->sh_addr = asect->vma; | |
3236 | else | |
3237 | this_hdr->sh_addr = 0; | |
3238 | ||
3239 | this_hdr->sh_offset = 0; | |
eea6121a | 3240 | this_hdr->sh_size = asect->size; |
252b5132 | 3241 | this_hdr->sh_link = 0; |
c86934ce NC |
3242 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3243 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3244 | { | |
4eca0228 | 3245 | _bfd_error_handler |
695344c0 | 3246 | /* xgettext:c-format */ |
9793eb77 | 3247 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3248 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3249 | arg->failed = TRUE; |
3250 | return; | |
3251 | } | |
72de5009 | 3252 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3253 | /* The sh_entsize and sh_info fields may have been set already by |
3254 | copy_private_section_data. */ | |
3255 | ||
3256 | this_hdr->bfd_section = asect; | |
3257 | this_hdr->contents = NULL; | |
3258 | ||
3cddba1e L |
3259 | /* If the section type is unspecified, we set it based on |
3260 | asect->flags. */ | |
98ece1b3 AM |
3261 | if ((asect->flags & SEC_GROUP) != 0) |
3262 | sh_type = SHT_GROUP; | |
98ece1b3 | 3263 | else |
94be91de | 3264 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3265 | |
3cddba1e | 3266 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3267 | this_hdr->sh_type = sh_type; |
3268 | else if (this_hdr->sh_type == SHT_NOBITS | |
3269 | && sh_type == SHT_PROGBITS | |
3270 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3271 | { |
98ece1b3 AM |
3272 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3273 | allow the link to proceed. This can happen when users link | |
3274 | non-bss input sections to bss output sections, or emit data | |
3275 | to a bss output section via a linker script. */ | |
4eca0228 | 3276 | _bfd_error_handler |
871b3ab2 | 3277 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3278 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3279 | } |
3280 | ||
2f89ff8d | 3281 | switch (this_hdr->sh_type) |
252b5132 | 3282 | { |
2f89ff8d | 3283 | default: |
2f89ff8d L |
3284 | break; |
3285 | ||
3286 | case SHT_STRTAB: | |
2f89ff8d L |
3287 | case SHT_NOTE: |
3288 | case SHT_NOBITS: | |
3289 | case SHT_PROGBITS: | |
3290 | break; | |
606851fb AM |
3291 | |
3292 | case SHT_INIT_ARRAY: | |
3293 | case SHT_FINI_ARRAY: | |
3294 | case SHT_PREINIT_ARRAY: | |
3295 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3296 | break; | |
2f89ff8d L |
3297 | |
3298 | case SHT_HASH: | |
c7ac6ff8 | 3299 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3300 | break; |
5de3bf90 | 3301 | |
2f89ff8d | 3302 | case SHT_DYNSYM: |
252b5132 | 3303 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3304 | break; |
3305 | ||
3306 | case SHT_DYNAMIC: | |
252b5132 | 3307 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3308 | break; |
3309 | ||
3310 | case SHT_RELA: | |
3311 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3312 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3313 | break; | |
3314 | ||
3315 | case SHT_REL: | |
3316 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3317 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3318 | break; | |
3319 | ||
3320 | case SHT_GNU_versym: | |
252b5132 | 3321 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3322 | break; |
3323 | ||
3324 | case SHT_GNU_verdef: | |
252b5132 RH |
3325 | this_hdr->sh_entsize = 0; |
3326 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3327 | cverdefs. The linker will set cverdefs, but sh_info will be |
3328 | zero. */ | |
252b5132 RH |
3329 | if (this_hdr->sh_info == 0) |
3330 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3331 | else | |
3332 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3333 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3334 | break; |
3335 | ||
3336 | case SHT_GNU_verneed: | |
252b5132 RH |
3337 | this_hdr->sh_entsize = 0; |
3338 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3339 | cverrefs. The linker will set cverrefs, but sh_info will be |
3340 | zero. */ | |
252b5132 RH |
3341 | if (this_hdr->sh_info == 0) |
3342 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3343 | else | |
3344 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3345 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3346 | break; |
3347 | ||
3348 | case SHT_GROUP: | |
1783205a | 3349 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3350 | break; |
fdc90cb4 JJ |
3351 | |
3352 | case SHT_GNU_HASH: | |
3353 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3354 | break; | |
dbb410c3 | 3355 | } |
252b5132 RH |
3356 | |
3357 | if ((asect->flags & SEC_ALLOC) != 0) | |
3358 | this_hdr->sh_flags |= SHF_ALLOC; | |
3359 | if ((asect->flags & SEC_READONLY) == 0) | |
3360 | this_hdr->sh_flags |= SHF_WRITE; | |
3361 | if ((asect->flags & SEC_CODE) != 0) | |
3362 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3363 | if ((asect->flags & SEC_MERGE) != 0) |
3364 | { | |
3365 | this_hdr->sh_flags |= SHF_MERGE; | |
3366 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3367 | } |
84865015 NC |
3368 | if ((asect->flags & SEC_STRINGS) != 0) |
3369 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3370 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3371 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3372 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3373 | { |
3374 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3375 | if (asect->size == 0 |
3376 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3377 | { |
3a800eb9 | 3378 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3379 | |
704afa60 | 3380 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3381 | if (o != NULL) |
3382 | { | |
704afa60 | 3383 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3384 | if (this_hdr->sh_size != 0) |
3385 | this_hdr->sh_type = SHT_NOBITS; | |
3386 | } | |
704afa60 JJ |
3387 | } |
3388 | } | |
18ae9cc1 L |
3389 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3390 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3391 | |
d4730f92 BS |
3392 | /* If the section has relocs, set up a section header for the |
3393 | SHT_REL[A] section. If two relocation sections are required for | |
3394 | this section, it is up to the processor-specific back-end to | |
3395 | create the other. */ | |
3396 | if ((asect->flags & SEC_RELOC) != 0) | |
3397 | { | |
3398 | /* When doing a relocatable link, create both REL and RELA sections if | |
3399 | needed. */ | |
3400 | if (arg->link_info | |
3401 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3402 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3403 | && (bfd_link_relocatable (arg->link_info) |
3404 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3405 | { |
3406 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3407 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3408 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3409 | { |
3410 | arg->failed = TRUE; | |
3411 | return; | |
3412 | } | |
3413 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3414 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3415 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3416 | { |
3417 | arg->failed = TRUE; | |
3418 | return; | |
3419 | } | |
3420 | } | |
3421 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3422 | (asect->use_rela_p | |
3423 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3424 | name, |
3e19fb8f L |
3425 | asect->use_rela_p, |
3426 | delay_st_name_p)) | |
db4677b8 | 3427 | { |
d4730f92 | 3428 | arg->failed = TRUE; |
db4677b8 AM |
3429 | return; |
3430 | } | |
d4730f92 BS |
3431 | } |
3432 | ||
252b5132 | 3433 | /* Check for processor-specific section types. */ |
0414f35b | 3434 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3435 | if (bed->elf_backend_fake_sections |
3436 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3437 | { |
3438 | arg->failed = TRUE; | |
3439 | return; | |
3440 | } | |
252b5132 | 3441 | |
42bb2e33 | 3442 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3443 | { |
3444 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3445 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3446 | this_hdr->sh_type = sh_type; |
3447 | } | |
252b5132 RH |
3448 | } |
3449 | ||
bcacc0f5 AM |
3450 | /* Fill in the contents of a SHT_GROUP section. Called from |
3451 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3452 | when ELF targets use the generic linker, ld. Called for ld -r | |
3453 | from bfd_elf_final_link. */ | |
dbb410c3 | 3454 | |
1126897b | 3455 | void |
217aa764 | 3456 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3457 | { |
a50b1753 | 3458 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3459 | asection *elt, *first; |
dbb410c3 | 3460 | unsigned char *loc; |
b34976b6 | 3461 | bfd_boolean gas; |
dbb410c3 | 3462 | |
7e4111ad L |
3463 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3464 | elfxx-ia64.c. */ | |
3465 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
3466 | || *failedptr) |
3467 | return; | |
3468 | ||
bcacc0f5 AM |
3469 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3470 | { | |
3471 | unsigned long symindx = 0; | |
3472 | ||
3473 | /* elf_group_id will have been set up by objcopy and the | |
3474 | generic linker. */ | |
3475 | if (elf_group_id (sec) != NULL) | |
3476 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3477 | |
bcacc0f5 AM |
3478 | if (symindx == 0) |
3479 | { | |
3480 | /* If called from the assembler, swap_out_syms will have set up | |
3481 | elf_section_syms. */ | |
3482 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3483 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3484 | } | |
3485 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3486 | } | |
3487 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3488 | { |
bcacc0f5 AM |
3489 | /* The ELF backend linker sets sh_info to -2 when the group |
3490 | signature symbol is global, and thus the index can't be | |
3491 | set until all local symbols are output. */ | |
53720c49 AM |
3492 | asection *igroup; |
3493 | struct bfd_elf_section_data *sec_data; | |
3494 | unsigned long symndx; | |
3495 | unsigned long extsymoff; | |
bcacc0f5 AM |
3496 | struct elf_link_hash_entry *h; |
3497 | ||
53720c49 AM |
3498 | /* The point of this little dance to the first SHF_GROUP section |
3499 | then back to the SHT_GROUP section is that this gets us to | |
3500 | the SHT_GROUP in the input object. */ | |
3501 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3502 | sec_data = elf_section_data (igroup); | |
3503 | symndx = sec_data->this_hdr.sh_info; | |
3504 | extsymoff = 0; | |
bcacc0f5 AM |
3505 | if (!elf_bad_symtab (igroup->owner)) |
3506 | { | |
3507 | Elf_Internal_Shdr *symtab_hdr; | |
3508 | ||
3509 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3510 | extsymoff = symtab_hdr->sh_info; | |
3511 | } | |
3512 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3513 | while (h->root.type == bfd_link_hash_indirect | |
3514 | || h->root.type == bfd_link_hash_warning) | |
3515 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3516 | ||
3517 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3518 | } |
dbb410c3 | 3519 | |
1126897b | 3520 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3521 | gas = TRUE; |
dbb410c3 AM |
3522 | if (sec->contents == NULL) |
3523 | { | |
b34976b6 | 3524 | gas = FALSE; |
a50b1753 | 3525 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3526 | |
3527 | /* Arrange for the section to be written out. */ | |
3528 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3529 | if (sec->contents == NULL) |
3530 | { | |
b34976b6 | 3531 | *failedptr = TRUE; |
dbb410c3 AM |
3532 | return; |
3533 | } | |
3534 | } | |
3535 | ||
eea6121a | 3536 | loc = sec->contents + sec->size; |
dbb410c3 | 3537 | |
9dce4196 AM |
3538 | /* Get the pointer to the first section in the group that gas |
3539 | squirreled away here. objcopy arranges for this to be set to the | |
3540 | start of the input section group. */ | |
3541 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3542 | |
3543 | /* First element is a flag word. Rest of section is elf section | |
3544 | indices for all the sections of the group. Write them backwards | |
3545 | just to keep the group in the same order as given in .section | |
3546 | directives, not that it matters. */ | |
3547 | while (elt != NULL) | |
3548 | { | |
9dce4196 | 3549 | asection *s; |
9dce4196 | 3550 | |
9dce4196 | 3551 | s = elt; |
415f38a6 AM |
3552 | if (!gas) |
3553 | s = s->output_section; | |
3554 | if (s != NULL | |
3555 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3556 | { |
db4677b8 | 3557 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3558 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3559 | ||
3560 | if (elf_sec->rel.hdr != NULL | |
3561 | && (gas | |
3562 | || (input_elf_sec->rel.hdr != NULL | |
3563 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3564 | { |
28e07a05 | 3565 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3566 | loc -= 4; |
3567 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3568 | } | |
28e07a05 AM |
3569 | if (elf_sec->rela.hdr != NULL |
3570 | && (gas | |
3571 | || (input_elf_sec->rela.hdr != NULL | |
3572 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3573 | { |
28e07a05 | 3574 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3575 | loc -= 4; |
3576 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3577 | } | |
01e1a5bc | 3578 | loc -= 4; |
db4677b8 | 3579 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3580 | } |
945906ff | 3581 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3582 | if (elt == first) |
3583 | break; | |
dbb410c3 AM |
3584 | } |
3585 | ||
7bdf4127 AB |
3586 | loc -= 4; |
3587 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3588 | |
9dce4196 | 3589 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3590 | } |
3591 | ||
bce964aa AM |
3592 | /* Given NAME, the name of a relocation section stripped of its |
3593 | .rel/.rela prefix, return the section in ABFD to which the | |
3594 | relocations apply. */ | |
bd53a53a L |
3595 | |
3596 | asection * | |
bce964aa AM |
3597 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3598 | { | |
3599 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3600 | section likely apply to .got.plt or .got section. */ | |
3601 | if (get_elf_backend_data (abfd)->want_got_plt | |
3602 | && strcmp (name, ".plt") == 0) | |
3603 | { | |
3604 | asection *sec; | |
3605 | ||
3606 | name = ".got.plt"; | |
3607 | sec = bfd_get_section_by_name (abfd, name); | |
3608 | if (sec != NULL) | |
3609 | return sec; | |
3610 | name = ".got"; | |
3611 | } | |
3612 | ||
3613 | return bfd_get_section_by_name (abfd, name); | |
3614 | } | |
3615 | ||
3616 | /* Return the section to which RELOC_SEC applies. */ | |
3617 | ||
3618 | static asection * | |
3619 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3620 | { |
3621 | const char *name; | |
3622 | unsigned int type; | |
3623 | bfd *abfd; | |
bce964aa | 3624 | const struct elf_backend_data *bed; |
bd53a53a L |
3625 | |
3626 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3627 | if (type != SHT_REL && type != SHT_RELA) | |
3628 | return NULL; | |
3629 | ||
3630 | /* We look up the section the relocs apply to by name. */ | |
3631 | name = reloc_sec->name; | |
bce964aa AM |
3632 | if (strncmp (name, ".rel", 4) != 0) |
3633 | return NULL; | |
3634 | name += 4; | |
3635 | if (type == SHT_RELA && *name++ != 'a') | |
3636 | return NULL; | |
bd53a53a | 3637 | |
bd53a53a | 3638 | abfd = reloc_sec->owner; |
bce964aa AM |
3639 | bed = get_elf_backend_data (abfd); |
3640 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3641 | } |
3642 | ||
252b5132 RH |
3643 | /* Assign all ELF section numbers. The dummy first section is handled here |
3644 | too. The link/info pointers for the standard section types are filled | |
3645 | in here too, while we're at it. */ | |
3646 | ||
b34976b6 | 3647 | static bfd_boolean |
da9f89d4 | 3648 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3649 | { |
3650 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3651 | asection *sec; | |
3e19fb8f | 3652 | unsigned int section_number; |
252b5132 | 3653 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3654 | struct bfd_elf_section_data *d; |
3516e984 | 3655 | bfd_boolean need_symtab; |
252b5132 RH |
3656 | |
3657 | section_number = 1; | |
3658 | ||
2b0f7ef9 JJ |
3659 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3660 | ||
da9f89d4 | 3661 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3662 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3663 | { |
ef53be89 | 3664 | size_t reloc_count = 0; |
14f2c699 | 3665 | |
da9f89d4 | 3666 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3667 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3668 | { |
5daa8fe7 | 3669 | d = elf_section_data (sec); |
da9f89d4 L |
3670 | |
3671 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3672 | { |
5daa8fe7 | 3673 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3674 | { |
3675 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3676 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3677 | abfd->section_count--; |
da9f89d4 | 3678 | } |
08a40648 | 3679 | else |
4fbb74a6 | 3680 | d->this_idx = section_number++; |
da9f89d4 | 3681 | } |
14f2c699 L |
3682 | |
3683 | /* Count relocations. */ | |
3684 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3685 | } |
14f2c699 L |
3686 | |
3687 | /* Clear HAS_RELOC if there are no relocations. */ | |
3688 | if (reloc_count == 0) | |
3689 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3690 | } |
3691 | ||
3692 | for (sec = abfd->sections; sec; sec = sec->next) | |
3693 | { | |
3694 | d = elf_section_data (sec); | |
3695 | ||
3696 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3697 | d->this_idx = section_number++; |
3e19fb8f L |
3698 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3699 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3700 | if (d->rel.hdr) |
2b0f7ef9 | 3701 | { |
d4730f92 | 3702 | d->rel.idx = section_number++; |
3e19fb8f L |
3703 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3704 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3705 | } |
d4730f92 BS |
3706 | else |
3707 | d->rel.idx = 0; | |
23bc299b | 3708 | |
d4730f92 | 3709 | if (d->rela.hdr) |
2b0f7ef9 | 3710 | { |
d4730f92 | 3711 | d->rela.idx = section_number++; |
3e19fb8f L |
3712 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3713 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3714 | } |
23bc299b | 3715 | else |
d4730f92 | 3716 | d->rela.idx = 0; |
252b5132 RH |
3717 | } |
3718 | ||
3516e984 L |
3719 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3720 | || (link_info == NULL | |
3721 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3722 | == HAS_RELOC))); | |
3723 | if (need_symtab) | |
252b5132 | 3724 | { |
12bd6957 | 3725 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3726 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3727 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3728 | { |
6a40cf0c NC |
3729 | elf_section_list * entry; |
3730 | ||
3731 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3732 | ||
3733 | entry = bfd_zalloc (abfd, sizeof * entry); | |
3734 | entry->ndx = section_number++; | |
3735 | elf_symtab_shndx_list (abfd) = entry; | |
3736 | entry->hdr.sh_name | |
9ad5cbcf | 3737 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3738 | ".symtab_shndx", FALSE); |
6a40cf0c | 3739 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3740 | return FALSE; |
9ad5cbcf | 3741 | } |
12bd6957 | 3742 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3743 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3744 | } |
3745 | ||
dd905818 NC |
3746 | elf_shstrtab_sec (abfd) = section_number++; |
3747 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3748 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3749 | ||
1c52a645 L |
3750 | if (section_number >= SHN_LORESERVE) |
3751 | { | |
695344c0 | 3752 | /* xgettext:c-format */ |
871b3ab2 | 3753 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3754 | abfd, section_number); |
3755 | return FALSE; | |
3756 | } | |
3757 | ||
9ad5cbcf | 3758 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3759 | elf_elfheader (abfd)->e_shnum = section_number; |
3760 | ||
3761 | /* Set up the list of section header pointers, in agreement with the | |
3762 | indices. */ | |
a50b1753 | 3763 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3764 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3765 | if (i_shdrp == NULL) |
b34976b6 | 3766 | return FALSE; |
252b5132 | 3767 | |
a50b1753 | 3768 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3769 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3770 | if (i_shdrp[0] == NULL) |
3771 | { | |
3772 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3773 | return FALSE; |
252b5132 | 3774 | } |
252b5132 RH |
3775 | |
3776 | elf_elfsections (abfd) = i_shdrp; | |
3777 | ||
12bd6957 | 3778 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3779 | if (need_symtab) |
252b5132 | 3780 | { |
12bd6957 | 3781 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3782 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3783 | { |
6a40cf0c NC |
3784 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3785 | BFD_ASSERT (entry != NULL); | |
3786 | i_shdrp[entry->ndx] = & entry->hdr; | |
3787 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3788 | } |
12bd6957 AM |
3789 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3790 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3791 | } |
38ce5b11 | 3792 | |
252b5132 RH |
3793 | for (sec = abfd->sections; sec; sec = sec->next) |
3794 | { | |
252b5132 | 3795 | asection *s; |
252b5132 | 3796 | |
91d6fa6a NC |
3797 | d = elf_section_data (sec); |
3798 | ||
252b5132 | 3799 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3800 | if (d->rel.idx != 0) |
3801 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3802 | if (d->rela.idx != 0) | |
3803 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3804 | |
3805 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3806 | ||
3807 | /* sh_link of a reloc section is the section index of the symbol | |
3808 | table. sh_info is the section index of the section to which | |
3809 | the relocation entries apply. */ | |
d4730f92 | 3810 | if (d->rel.idx != 0) |
252b5132 | 3811 | { |
12bd6957 | 3812 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3813 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3814 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3815 | } |
d4730f92 | 3816 | if (d->rela.idx != 0) |
23bc299b | 3817 | { |
12bd6957 | 3818 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3819 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3820 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3821 | } |
252b5132 | 3822 | |
38ce5b11 L |
3823 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3824 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3825 | { | |
3826 | s = elf_linked_to_section (sec); | |
3827 | if (s) | |
38ce5b11 | 3828 | { |
f2876037 | 3829 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3830 | if (link_info != NULL) |
38ce5b11 | 3831 | { |
f2876037 | 3832 | /* Check discarded linkonce section. */ |
dbaa2011 | 3833 | if (discarded_section (s)) |
38ce5b11 | 3834 | { |
ccd2ec6a | 3835 | asection *kept; |
4eca0228 | 3836 | _bfd_error_handler |
695344c0 | 3837 | /* xgettext:c-format */ |
871b3ab2 AM |
3838 | (_("%pB: sh_link of section `%pA' points to" |
3839 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3840 | abfd, d->this_hdr.bfd_section, |
3841 | s, s->owner); | |
3842 | /* Point to the kept section if it has the same | |
3843 | size as the discarded one. */ | |
c0f00686 | 3844 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3845 | if (kept == NULL) |
185d09ad | 3846 | { |
ccd2ec6a L |
3847 | bfd_set_error (bfd_error_bad_value); |
3848 | return FALSE; | |
185d09ad | 3849 | } |
ccd2ec6a | 3850 | s = kept; |
38ce5b11 | 3851 | } |
e424ecc8 | 3852 | |
ccd2ec6a L |
3853 | s = s->output_section; |
3854 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3855 | } |
f2876037 L |
3856 | else |
3857 | { | |
3858 | /* Handle objcopy. */ | |
3859 | if (s->output_section == NULL) | |
3860 | { | |
4eca0228 | 3861 | _bfd_error_handler |
695344c0 | 3862 | /* xgettext:c-format */ |
871b3ab2 AM |
3863 | (_("%pB: sh_link of section `%pA' points to" |
3864 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3865 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3866 | bfd_set_error (bfd_error_bad_value); | |
3867 | return FALSE; | |
3868 | } | |
3869 | s = s->output_section; | |
3870 | } | |
ccd2ec6a L |
3871 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3872 | } | |
3873 | else | |
3874 | { | |
3875 | /* PR 290: | |
3876 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3877 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3878 | sh_info fields. Hence we could get the situation | |
08a40648 | 3879 | where s is NULL. */ |
ccd2ec6a L |
3880 | const struct elf_backend_data *bed |
3881 | = get_elf_backend_data (abfd); | |
3882 | if (bed->link_order_error_handler) | |
3883 | bed->link_order_error_handler | |
695344c0 | 3884 | /* xgettext:c-format */ |
871b3ab2 | 3885 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3886 | abfd, sec); |
38ce5b11 L |
3887 | } |
3888 | } | |
3889 | ||
252b5132 RH |
3890 | switch (d->this_hdr.sh_type) |
3891 | { | |
3892 | case SHT_REL: | |
3893 | case SHT_RELA: | |
3894 | /* A reloc section which we are treating as a normal BFD | |
3895 | section. sh_link is the section index of the symbol | |
3896 | table. sh_info is the section index of the section to | |
3897 | which the relocation entries apply. We assume that an | |
3898 | allocated reloc section uses the dynamic symbol table. | |
3899 | FIXME: How can we be sure? */ | |
3900 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3901 | if (s != NULL) | |
3902 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3903 | ||
bce964aa | 3904 | s = elf_get_reloc_section (sec); |
252b5132 | 3905 | if (s != NULL) |
9ef5d938 L |
3906 | { |
3907 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3908 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3909 | } | |
252b5132 RH |
3910 | break; |
3911 | ||
3912 | case SHT_STRTAB: | |
3913 | /* We assume that a section named .stab*str is a stabs | |
3914 | string section. We look for a section with the same name | |
3915 | but without the trailing ``str'', and set its sh_link | |
3916 | field to point to this section. */ | |
0112cd26 | 3917 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3918 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3919 | { | |
3920 | size_t len; | |
3921 | char *alc; | |
3922 | ||
3923 | len = strlen (sec->name); | |
a50b1753 | 3924 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3925 | if (alc == NULL) |
b34976b6 | 3926 | return FALSE; |
d4c88bbb | 3927 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3928 | alc[len - 3] = '\0'; |
3929 | s = bfd_get_section_by_name (abfd, alc); | |
3930 | free (alc); | |
3931 | if (s != NULL) | |
3932 | { | |
3933 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3934 | ||
3935 | /* This is a .stab section. */ | |
0594c12d AM |
3936 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3937 | elf_section_data (s)->this_hdr.sh_entsize | |
3938 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3939 | } |
3940 | } | |
3941 | break; | |
3942 | ||
3943 | case SHT_DYNAMIC: | |
3944 | case SHT_DYNSYM: | |
3945 | case SHT_GNU_verneed: | |
3946 | case SHT_GNU_verdef: | |
3947 | /* sh_link is the section header index of the string table | |
3948 | used for the dynamic entries, or the symbol table, or the | |
3949 | version strings. */ | |
3950 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3951 | if (s != NULL) | |
3952 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3953 | break; | |
3954 | ||
7f1204bb JJ |
3955 | case SHT_GNU_LIBLIST: |
3956 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3957 | list used for the dynamic entries, or the symbol table, or |
3958 | the version strings. */ | |
7f1204bb JJ |
3959 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3960 | ? ".dynstr" : ".gnu.libstr"); | |
3961 | if (s != NULL) | |
3962 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3963 | break; | |
3964 | ||
252b5132 | 3965 | case SHT_HASH: |
fdc90cb4 | 3966 | case SHT_GNU_HASH: |
252b5132 RH |
3967 | case SHT_GNU_versym: |
3968 | /* sh_link is the section header index of the symbol table | |
3969 | this hash table or version table is for. */ | |
3970 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3971 | if (s != NULL) | |
3972 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3973 | break; | |
dbb410c3 AM |
3974 | |
3975 | case SHT_GROUP: | |
12bd6957 | 3976 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3977 | } |
3978 | } | |
3979 | ||
3e19fb8f L |
3980 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
3981 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
3982 | debug section name from .debug_* to .zdebug_* if needed. */ | |
3983 | ||
b34976b6 | 3984 | return TRUE; |
252b5132 RH |
3985 | } |
3986 | ||
5372391b | 3987 | static bfd_boolean |
217aa764 | 3988 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3989 | { |
3990 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3991 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3992 | if (bed->elf_backend_sym_is_global) |
3993 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3994 | |
e47bf690 | 3995 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3996 | || bfd_is_und_section (bfd_get_section (sym)) |
3997 | || bfd_is_com_section (bfd_get_section (sym))); | |
3998 | } | |
3999 | ||
76359541 TP |
4000 | /* Filter global symbols of ABFD to include in the import library. All |
4001 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4002 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4003 | the beginning of that array. | |
4004 | ||
4005 | Returns the number of symbols to keep. */ | |
4006 | ||
4007 | unsigned int | |
4008 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4009 | asymbol **syms, long symcount) | |
4010 | { | |
4011 | long src_count, dst_count = 0; | |
4012 | ||
4013 | for (src_count = 0; src_count < symcount; src_count++) | |
4014 | { | |
4015 | asymbol *sym = syms[src_count]; | |
4016 | char *name = (char *) bfd_asymbol_name (sym); | |
4017 | struct bfd_link_hash_entry *h; | |
4018 | ||
4019 | if (!sym_is_global (abfd, sym)) | |
4020 | continue; | |
4021 | ||
4022 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4023 | if (h == NULL) |
4024 | continue; | |
76359541 TP |
4025 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4026 | continue; | |
76359541 TP |
4027 | if (h->linker_def || h->ldscript_def) |
4028 | continue; | |
4029 | ||
4030 | syms[dst_count++] = sym; | |
4031 | } | |
4032 | ||
4033 | syms[dst_count] = NULL; | |
4034 | ||
4035 | return dst_count; | |
4036 | } | |
4037 | ||
5372391b | 4038 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4039 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4040 | |
4041 | static bfd_boolean | |
4042 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4043 | { | |
c6d8cab4 L |
4044 | elf_symbol_type *type_ptr; |
4045 | ||
db0c309f NC |
4046 | if (sym == NULL) |
4047 | return FALSE; | |
4048 | ||
c6d8cab4 L |
4049 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4050 | return FALSE; | |
4051 | ||
db0c309f NC |
4052 | if (sym->section == NULL) |
4053 | return TRUE; | |
4054 | ||
c6d8cab4 L |
4055 | type_ptr = elf_symbol_from (abfd, sym); |
4056 | return ((type_ptr != NULL | |
4057 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4058 | && bfd_is_abs_section (sym->section)) | |
4059 | || !(sym->section->owner == abfd | |
db0c309f NC |
4060 | || (sym->section->output_section != NULL |
4061 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4062 | && sym->section->output_offset == 0) |
4063 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4064 | } |
4065 | ||
2633a79c AM |
4066 | /* Map symbol from it's internal number to the external number, moving |
4067 | all local symbols to be at the head of the list. */ | |
4068 | ||
b34976b6 | 4069 | static bfd_boolean |
12bd6957 | 4070 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4071 | { |
dc810e39 | 4072 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4073 | asymbol **syms = bfd_get_outsymbols (abfd); |
4074 | asymbol **sect_syms; | |
dc810e39 AM |
4075 | unsigned int num_locals = 0; |
4076 | unsigned int num_globals = 0; | |
4077 | unsigned int num_locals2 = 0; | |
4078 | unsigned int num_globals2 = 0; | |
7292b3ac | 4079 | unsigned int max_index = 0; |
dc810e39 | 4080 | unsigned int idx; |
252b5132 RH |
4081 | asection *asect; |
4082 | asymbol **new_syms; | |
252b5132 RH |
4083 | |
4084 | #ifdef DEBUG | |
4085 | fprintf (stderr, "elf_map_symbols\n"); | |
4086 | fflush (stderr); | |
4087 | #endif | |
4088 | ||
252b5132 RH |
4089 | for (asect = abfd->sections; asect; asect = asect->next) |
4090 | { | |
4091 | if (max_index < asect->index) | |
4092 | max_index = asect->index; | |
4093 | } | |
4094 | ||
4095 | max_index++; | |
a50b1753 | 4096 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4097 | if (sect_syms == NULL) |
b34976b6 | 4098 | return FALSE; |
252b5132 | 4099 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4100 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4101 | |
079e9a2f AM |
4102 | /* Init sect_syms entries for any section symbols we have already |
4103 | decided to output. */ | |
252b5132 RH |
4104 | for (idx = 0; idx < symcount; idx++) |
4105 | { | |
dc810e39 | 4106 | asymbol *sym = syms[idx]; |
c044fabd | 4107 | |
252b5132 | 4108 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4109 | && sym->value == 0 |
2633a79c AM |
4110 | && !ignore_section_sym (abfd, sym) |
4111 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4112 | { |
5372391b | 4113 | asection *sec = sym->section; |
252b5132 | 4114 | |
5372391b AM |
4115 | if (sec->owner != abfd) |
4116 | sec = sec->output_section; | |
252b5132 | 4117 | |
5372391b | 4118 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4119 | } |
4120 | } | |
4121 | ||
252b5132 RH |
4122 | /* Classify all of the symbols. */ |
4123 | for (idx = 0; idx < symcount; idx++) | |
4124 | { | |
2633a79c | 4125 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4126 | num_globals++; |
2633a79c AM |
4127 | else if (!ignore_section_sym (abfd, syms[idx])) |
4128 | num_locals++; | |
252b5132 | 4129 | } |
079e9a2f | 4130 | |
5372391b | 4131 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4132 | sections will already have a section symbol in outsymbols, but |
4133 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4134 | at least in that case. */ | |
252b5132 RH |
4135 | for (asect = abfd->sections; asect; asect = asect->next) |
4136 | { | |
079e9a2f | 4137 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4138 | { |
079e9a2f | 4139 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4140 | num_locals++; |
4141 | else | |
4142 | num_globals++; | |
252b5132 RH |
4143 | } |
4144 | } | |
4145 | ||
4146 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4147 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4148 | sizeof (asymbol *)); |
dc810e39 | 4149 | |
252b5132 | 4150 | if (new_syms == NULL) |
b34976b6 | 4151 | return FALSE; |
252b5132 RH |
4152 | |
4153 | for (idx = 0; idx < symcount; idx++) | |
4154 | { | |
4155 | asymbol *sym = syms[idx]; | |
dc810e39 | 4156 | unsigned int i; |
252b5132 | 4157 | |
2633a79c AM |
4158 | if (sym_is_global (abfd, sym)) |
4159 | i = num_locals + num_globals2++; | |
4160 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4161 | i = num_locals2++; |
4162 | else | |
2633a79c | 4163 | continue; |
252b5132 RH |
4164 | new_syms[i] = sym; |
4165 | sym->udata.i = i + 1; | |
4166 | } | |
4167 | for (asect = abfd->sections; asect; asect = asect->next) | |
4168 | { | |
079e9a2f | 4169 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4170 | { |
079e9a2f | 4171 | asymbol *sym = asect->symbol; |
dc810e39 | 4172 | unsigned int i; |
252b5132 | 4173 | |
079e9a2f | 4174 | sect_syms[asect->index] = sym; |
252b5132 RH |
4175 | if (!sym_is_global (abfd, sym)) |
4176 | i = num_locals2++; | |
4177 | else | |
4178 | i = num_locals + num_globals2++; | |
4179 | new_syms[i] = sym; | |
4180 | sym->udata.i = i + 1; | |
4181 | } | |
4182 | } | |
4183 | ||
4184 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4185 | ||
12bd6957 | 4186 | *pnum_locals = num_locals; |
b34976b6 | 4187 | return TRUE; |
252b5132 RH |
4188 | } |
4189 | ||
4190 | /* Align to the maximum file alignment that could be required for any | |
4191 | ELF data structure. */ | |
4192 | ||
268b6b39 | 4193 | static inline file_ptr |
217aa764 | 4194 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4195 | { |
4196 | return (off + align - 1) & ~(align - 1); | |
4197 | } | |
4198 | ||
4199 | /* Assign a file position to a section, optionally aligning to the | |
4200 | required section alignment. */ | |
4201 | ||
217aa764 AM |
4202 | file_ptr |
4203 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4204 | file_ptr offset, | |
4205 | bfd_boolean align) | |
252b5132 | 4206 | { |
72de5009 AM |
4207 | if (align && i_shdrp->sh_addralign > 1) |
4208 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4209 | i_shdrp->sh_offset = offset; |
4210 | if (i_shdrp->bfd_section != NULL) | |
4211 | i_shdrp->bfd_section->filepos = offset; | |
4212 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4213 | offset += i_shdrp->sh_size; | |
4214 | return offset; | |
4215 | } | |
4216 | ||
4217 | /* Compute the file positions we are going to put the sections at, and | |
4218 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4219 | is not NULL, this is being called by the ELF backend linker. */ | |
4220 | ||
b34976b6 | 4221 | bfd_boolean |
217aa764 AM |
4222 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4223 | struct bfd_link_info *link_info) | |
252b5132 | 4224 | { |
9c5bfbb7 | 4225 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4226 | struct fake_section_arg fsargs; |
b34976b6 | 4227 | bfd_boolean failed; |
ef10c3ac | 4228 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4229 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4230 | bfd_boolean need_symtab; |
252b5132 RH |
4231 | |
4232 | if (abfd->output_has_begun) | |
b34976b6 | 4233 | return TRUE; |
252b5132 RH |
4234 | |
4235 | /* Do any elf backend specific processing first. */ | |
4236 | if (bed->elf_backend_begin_write_processing) | |
4237 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4238 | ||
4239 | if (! prep_headers (abfd)) | |
b34976b6 | 4240 | return FALSE; |
252b5132 | 4241 | |
e6c51ed4 | 4242 | /* Post process the headers if necessary. */ |
78245035 | 4243 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4244 | |
d4730f92 BS |
4245 | fsargs.failed = FALSE; |
4246 | fsargs.link_info = link_info; | |
4247 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4248 | if (fsargs.failed) | |
b34976b6 | 4249 | return FALSE; |
252b5132 | 4250 | |
da9f89d4 | 4251 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4252 | return FALSE; |
252b5132 RH |
4253 | |
4254 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4255 | need_symtab = (link_info == NULL |
4256 | && (bfd_get_symcount (abfd) > 0 | |
4257 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4258 | == HAS_RELOC))); | |
4259 | if (need_symtab) | |
252b5132 RH |
4260 | { |
4261 | /* Non-zero if doing a relocatable link. */ | |
4262 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4263 | ||
4264 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4265 | return FALSE; |
252b5132 RH |
4266 | } |
4267 | ||
d4730f92 | 4268 | failed = FALSE; |
1126897b | 4269 | if (link_info == NULL) |
dbb410c3 | 4270 | { |
1126897b | 4271 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4272 | if (failed) |
b34976b6 | 4273 | return FALSE; |
dbb410c3 AM |
4274 | } |
4275 | ||
252b5132 RH |
4276 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4277 | /* sh_name was set in prep_headers. */ | |
4278 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4279 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4280 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4281 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4282 | shstrtab_hdr->sh_entsize = 0; |
4283 | shstrtab_hdr->sh_link = 0; | |
4284 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4285 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4286 | shstrtab_hdr->sh_addralign = 1; |
4287 | ||
c84fca4d | 4288 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4289 | return FALSE; |
252b5132 | 4290 | |
3516e984 | 4291 | if (need_symtab) |
252b5132 RH |
4292 | { |
4293 | file_ptr off; | |
4294 | Elf_Internal_Shdr *hdr; | |
4295 | ||
12bd6957 | 4296 | off = elf_next_file_pos (abfd); |
252b5132 | 4297 | |
6a40cf0c | 4298 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4299 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4300 | |
6a40cf0c NC |
4301 | if (elf_symtab_shndx_list (abfd) != NULL) |
4302 | { | |
4303 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4304 | if (hdr->sh_size != 0) | |
4305 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4306 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4307 | } | |
9ad5cbcf | 4308 | |
252b5132 | 4309 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4310 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4311 | |
12bd6957 | 4312 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4313 | |
4314 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4315 | out. */ |
252b5132 | 4316 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4317 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4318 | return FALSE; |
ef10c3ac | 4319 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4320 | } |
4321 | ||
b34976b6 | 4322 | abfd->output_has_begun = TRUE; |
252b5132 | 4323 | |
b34976b6 | 4324 | return TRUE; |
252b5132 RH |
4325 | } |
4326 | ||
8ded5a0f AM |
4327 | /* Make an initial estimate of the size of the program header. If we |
4328 | get the number wrong here, we'll redo section placement. */ | |
4329 | ||
4330 | static bfd_size_type | |
4331 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4332 | { | |
4333 | size_t segs; | |
4334 | asection *s; | |
2b05f1b7 | 4335 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4336 | |
4337 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4338 | and one for data. */ | |
4339 | segs = 2; | |
4340 | ||
4341 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4342 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4343 | { |
4344 | /* If we have a loadable interpreter section, we need a | |
4345 | PT_INTERP segment. In this case, assume we also need a | |
4346 | PT_PHDR segment, although that may not be true for all | |
4347 | targets. */ | |
e9a38e0f | 4348 | segs += 2; |
8ded5a0f AM |
4349 | } |
4350 | ||
4351 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4352 | { | |
4353 | /* We need a PT_DYNAMIC segment. */ | |
4354 | ++segs; | |
f210dcff | 4355 | } |
08a40648 | 4356 | |
ceae84aa | 4357 | if (info != NULL && info->relro) |
f210dcff L |
4358 | { |
4359 | /* We need a PT_GNU_RELRO segment. */ | |
4360 | ++segs; | |
8ded5a0f AM |
4361 | } |
4362 | ||
12bd6957 | 4363 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4364 | { |
4365 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4366 | ++segs; | |
4367 | } | |
4368 | ||
12bd6957 | 4369 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4370 | { |
2b05f1b7 L |
4371 | /* We need a PT_GNU_STACK segment. */ |
4372 | ++segs; | |
4373 | } | |
94b11780 | 4374 | |
0a59decb L |
4375 | s = bfd_get_section_by_name (abfd, |
4376 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4377 | if (s != NULL && s->size != 0) | |
4378 | { | |
4379 | /* We need a PT_GNU_PROPERTY segment. */ | |
4380 | ++segs; | |
4381 | } | |
4382 | ||
2b05f1b7 L |
4383 | for (s = abfd->sections; s != NULL; s = s->next) |
4384 | { | |
8ded5a0f | 4385 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4386 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4387 | { |
23e463ed | 4388 | unsigned int alignment_power; |
8ded5a0f AM |
4389 | /* We need a PT_NOTE segment. */ |
4390 | ++segs; | |
23e463ed L |
4391 | /* Try to create just one PT_NOTE segment for all adjacent |
4392 | loadable SHT_NOTE sections. gABI requires that within a | |
4393 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4394 | each note should have the same alignment. So we check | |
4395 | whether the sections are correctly aligned. */ | |
4396 | alignment_power = s->alignment_power; | |
4397 | while (s->next != NULL | |
4398 | && s->next->alignment_power == alignment_power | |
4399 | && (s->next->flags & SEC_LOAD) != 0 | |
4400 | && elf_section_type (s->next) == SHT_NOTE) | |
4401 | s = s->next; | |
8ded5a0f AM |
4402 | } |
4403 | } | |
4404 | ||
4405 | for (s = abfd->sections; s != NULL; s = s->next) | |
4406 | { | |
4407 | if (s->flags & SEC_THREAD_LOCAL) | |
4408 | { | |
4409 | /* We need a PT_TLS segment. */ | |
4410 | ++segs; | |
4411 | break; | |
4412 | } | |
4413 | } | |
4414 | ||
2b05f1b7 | 4415 | bed = get_elf_backend_data (abfd); |
a91e1603 L |
4416 | |
4417 | if ((abfd->flags & D_PAGED) != 0) | |
4418 | { | |
4419 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4420 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4421 | for (s = abfd->sections; s != NULL; s = s->next) | |
4422 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4423 | { | |
4424 | if (elf_section_data (s)->this_hdr.sh_info | |
4425 | > PT_GNU_MBIND_NUM) | |
4426 | { | |
4427 | _bfd_error_handler | |
4428 | /* xgettext:c-format */ | |
871b3ab2 | 4429 | (_("%pB: GNU_MBIN section `%pA' has invalid sh_info field: %d"), |
a91e1603 L |
4430 | abfd, s, elf_section_data (s)->this_hdr.sh_info); |
4431 | continue; | |
4432 | } | |
4433 | /* Align mbind section to page size. */ | |
4434 | if (s->alignment_power < page_align_power) | |
4435 | s->alignment_power = page_align_power; | |
4436 | segs ++; | |
4437 | } | |
4438 | } | |
4439 | ||
4440 | /* Let the backend count up any program headers it might need. */ | |
4441 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4442 | { |
4443 | int a; | |
4444 | ||
4445 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4446 | if (a == -1) | |
4447 | abort (); | |
4448 | segs += a; | |
4449 | } | |
4450 | ||
4451 | return segs * bed->s->sizeof_phdr; | |
4452 | } | |
4453 | ||
2ea37f1c NC |
4454 | /* Find the segment that contains the output_section of section. */ |
4455 | ||
4456 | Elf_Internal_Phdr * | |
4457 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4458 | { | |
4459 | struct elf_segment_map *m; | |
4460 | Elf_Internal_Phdr *p; | |
4461 | ||
12bd6957 | 4462 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4463 | m != NULL; |
4464 | m = m->next, p++) | |
4465 | { | |
4466 | int i; | |
4467 | ||
4468 | for (i = m->count - 1; i >= 0; i--) | |
4469 | if (m->sections[i] == section) | |
4470 | return p; | |
4471 | } | |
4472 | ||
4473 | return NULL; | |
4474 | } | |
4475 | ||
252b5132 RH |
4476 | /* Create a mapping from a set of sections to a program segment. */ |
4477 | ||
217aa764 AM |
4478 | static struct elf_segment_map * |
4479 | make_mapping (bfd *abfd, | |
4480 | asection **sections, | |
4481 | unsigned int from, | |
4482 | unsigned int to, | |
4483 | bfd_boolean phdr) | |
252b5132 RH |
4484 | { |
4485 | struct elf_segment_map *m; | |
4486 | unsigned int i; | |
4487 | asection **hdrpp; | |
dc810e39 | 4488 | bfd_size_type amt; |
252b5132 | 4489 | |
00bee008 AM |
4490 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4491 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4492 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4493 | if (m == NULL) |
4494 | return NULL; | |
4495 | m->next = NULL; | |
4496 | m->p_type = PT_LOAD; | |
4497 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4498 | m->sections[i - from] = *hdrpp; | |
4499 | m->count = to - from; | |
4500 | ||
4501 | if (from == 0 && phdr) | |
4502 | { | |
4503 | /* Include the headers in the first PT_LOAD segment. */ | |
4504 | m->includes_filehdr = 1; | |
4505 | m->includes_phdrs = 1; | |
4506 | } | |
4507 | ||
4508 | return m; | |
4509 | } | |
4510 | ||
229fcec5 MM |
4511 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4512 | on failure. */ | |
4513 | ||
4514 | struct elf_segment_map * | |
4515 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4516 | { | |
4517 | struct elf_segment_map *m; | |
4518 | ||
a50b1753 | 4519 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4520 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4521 | if (m == NULL) |
4522 | return NULL; | |
4523 | m->next = NULL; | |
4524 | m->p_type = PT_DYNAMIC; | |
4525 | m->count = 1; | |
4526 | m->sections[0] = dynsec; | |
08a40648 | 4527 | |
229fcec5 MM |
4528 | return m; |
4529 | } | |
4530 | ||
8ded5a0f | 4531 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4532 | |
b34976b6 | 4533 | static bfd_boolean |
3dea8fca AM |
4534 | elf_modify_segment_map (bfd *abfd, |
4535 | struct bfd_link_info *info, | |
4536 | bfd_boolean remove_empty_load) | |
252b5132 | 4537 | { |
252e386e | 4538 | struct elf_segment_map **m; |
8ded5a0f | 4539 | const struct elf_backend_data *bed; |
252b5132 | 4540 | |
8ded5a0f AM |
4541 | /* The placement algorithm assumes that non allocated sections are |
4542 | not in PT_LOAD segments. We ensure this here by removing such | |
4543 | sections from the segment map. We also remove excluded | |
252e386e AM |
4544 | sections. Finally, any PT_LOAD segment without sections is |
4545 | removed. */ | |
12bd6957 | 4546 | m = &elf_seg_map (abfd); |
252e386e | 4547 | while (*m) |
8ded5a0f AM |
4548 | { |
4549 | unsigned int i, new_count; | |
252b5132 | 4550 | |
252e386e | 4551 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4552 | { |
252e386e AM |
4553 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4554 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4555 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4556 | { |
252e386e AM |
4557 | (*m)->sections[new_count] = (*m)->sections[i]; |
4558 | new_count++; | |
8ded5a0f AM |
4559 | } |
4560 | } | |
252e386e | 4561 | (*m)->count = new_count; |
252b5132 | 4562 | |
1a9ccd70 NC |
4563 | if (remove_empty_load |
4564 | && (*m)->p_type == PT_LOAD | |
4565 | && (*m)->count == 0 | |
4566 | && !(*m)->includes_phdrs) | |
252e386e AM |
4567 | *m = (*m)->next; |
4568 | else | |
4569 | m = &(*m)->next; | |
8ded5a0f | 4570 | } |
252b5132 | 4571 | |
8ded5a0f AM |
4572 | bed = get_elf_backend_data (abfd); |
4573 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4574 | { |
252e386e | 4575 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4576 | return FALSE; |
252b5132 | 4577 | } |
252b5132 | 4578 | |
8ded5a0f AM |
4579 | return TRUE; |
4580 | } | |
252b5132 | 4581 | |
dbc88fc1 AM |
4582 | #define IS_TBSS(s) \ |
4583 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4584 | ||
8ded5a0f | 4585 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4586 | |
8ded5a0f AM |
4587 | bfd_boolean |
4588 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4589 | { | |
4590 | unsigned int count; | |
4591 | struct elf_segment_map *m; | |
4592 | asection **sections = NULL; | |
4593 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4594 | bfd_boolean no_user_phdrs; |
252b5132 | 4595 | |
12bd6957 | 4596 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4597 | |
4598 | if (info != NULL) | |
4599 | info->user_phdrs = !no_user_phdrs; | |
4600 | ||
3dea8fca | 4601 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4602 | { |
8ded5a0f AM |
4603 | asection *s; |
4604 | unsigned int i; | |
4605 | struct elf_segment_map *mfirst; | |
4606 | struct elf_segment_map **pm; | |
4607 | asection *last_hdr; | |
4608 | bfd_vma last_size; | |
00bee008 | 4609 | unsigned int hdr_index; |
8ded5a0f AM |
4610 | bfd_vma maxpagesize; |
4611 | asection **hdrpp; | |
64029e93 | 4612 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4613 | bfd_boolean writable; |
2888249f | 4614 | bfd_boolean executable; |
8ded5a0f AM |
4615 | int tls_count = 0; |
4616 | asection *first_tls = NULL; | |
a91e1603 | 4617 | asection *first_mbind = NULL; |
8ded5a0f AM |
4618 | asection *dynsec, *eh_frame_hdr; |
4619 | bfd_size_type amt; | |
8d06853e | 4620 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4621 | bfd_size_type phdr_size; |
252b5132 | 4622 | |
8ded5a0f | 4623 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4624 | |
a50b1753 | 4625 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4626 | sizeof (asection *)); |
8ded5a0f | 4627 | if (sections == NULL) |
252b5132 | 4628 | goto error_return; |
252b5132 | 4629 | |
8d06853e AM |
4630 | /* Calculate top address, avoiding undefined behaviour of shift |
4631 | left operator when shift count is equal to size of type | |
4632 | being shifted. */ | |
4633 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4634 | addr_mask = (addr_mask << 1) + 1; | |
4635 | ||
8ded5a0f AM |
4636 | i = 0; |
4637 | for (s = abfd->sections; s != NULL; s = s->next) | |
4638 | { | |
4639 | if ((s->flags & SEC_ALLOC) != 0) | |
4640 | { | |
4641 | sections[i] = s; | |
4642 | ++i; | |
8d06853e AM |
4643 | /* A wrapping section potentially clashes with header. */ |
4644 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4645 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4646 | } |
4647 | } | |
4648 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4649 | count = i; | |
252b5132 | 4650 | |
8ded5a0f | 4651 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4652 | |
64029e93 AM |
4653 | phdr_size = elf_program_header_size (abfd); |
4654 | if (phdr_size == (bfd_size_type) -1) | |
4655 | phdr_size = get_program_header_size (abfd, info); | |
4656 | phdr_size += bed->s->sizeof_ehdr; | |
4657 | maxpagesize = bed->maxpagesize; | |
4658 | if (maxpagesize == 0) | |
4659 | maxpagesize = 1; | |
4660 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4661 | if (count != 0 | |
4662 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4663 | >= (phdr_size & (maxpagesize - 1)))) | |
4664 | /* For compatibility with old scripts that may not be using | |
4665 | SIZEOF_HEADERS, add headers when it looks like space has | |
4666 | been left for them. */ | |
4667 | phdr_in_segment = TRUE; | |
252b5132 | 4668 | |
64029e93 | 4669 | /* Build the mapping. */ |
8ded5a0f AM |
4670 | mfirst = NULL; |
4671 | pm = &mfirst; | |
252b5132 | 4672 | |
8ded5a0f AM |
4673 | /* If we have a .interp section, then create a PT_PHDR segment for |
4674 | the program headers and a PT_INTERP segment for the .interp | |
4675 | section. */ | |
4676 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4677 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4678 | { |
4679 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4680 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4681 | if (m == NULL) |
4682 | goto error_return; | |
4683 | m->next = NULL; | |
4684 | m->p_type = PT_PHDR; | |
f882209d | 4685 | m->p_flags = PF_R; |
8ded5a0f AM |
4686 | m->p_flags_valid = 1; |
4687 | m->includes_phdrs = 1; | |
64029e93 | 4688 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4689 | *pm = m; |
4690 | pm = &m->next; | |
252b5132 | 4691 | |
8ded5a0f | 4692 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4693 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4694 | if (m == NULL) |
4695 | goto error_return; | |
4696 | m->next = NULL; | |
4697 | m->p_type = PT_INTERP; | |
4698 | m->count = 1; | |
4699 | m->sections[0] = s; | |
4700 | ||
4701 | *pm = m; | |
4702 | pm = &m->next; | |
252b5132 | 4703 | } |
8ded5a0f AM |
4704 | |
4705 | /* Look through the sections. We put sections in the same program | |
4706 | segment when the start of the second section can be placed within | |
4707 | a few bytes of the end of the first section. */ | |
4708 | last_hdr = NULL; | |
4709 | last_size = 0; | |
00bee008 | 4710 | hdr_index = 0; |
8ded5a0f | 4711 | writable = FALSE; |
2888249f | 4712 | executable = FALSE; |
8ded5a0f AM |
4713 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4714 | if (dynsec != NULL | |
4715 | && (dynsec->flags & SEC_LOAD) == 0) | |
4716 | dynsec = NULL; | |
4717 | ||
64029e93 AM |
4718 | if ((abfd->flags & D_PAGED) == 0) |
4719 | phdr_in_segment = FALSE; | |
4720 | ||
8ded5a0f AM |
4721 | /* Deal with -Ttext or something similar such that the first section |
4722 | is not adjacent to the program headers. This is an | |
4723 | approximation, since at this point we don't know exactly how many | |
4724 | program headers we will need. */ | |
64029e93 | 4725 | if (phdr_in_segment && count > 0) |
252b5132 | 4726 | { |
64029e93 AM |
4727 | bfd_vma phdr_lma; |
4728 | bfd_boolean separate_phdr = FALSE; | |
4729 | ||
4730 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4731 | if (info != NULL | |
4732 | && info->separate_code | |
4733 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4734 | { |
64029e93 AM |
4735 | /* If data sections should be separate from code and |
4736 | thus not executable, and the first section is | |
4737 | executable then put the file and program headers in | |
4738 | their own PT_LOAD. */ | |
4739 | separate_phdr = TRUE; | |
4740 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4741 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4742 | { | |
4743 | /* The file and program headers are currently on the | |
4744 | same page as the first section. Put them on the | |
4745 | previous page if we can. */ | |
4746 | if (phdr_lma >= maxpagesize) | |
4747 | phdr_lma -= maxpagesize; | |
4748 | else | |
4749 | separate_phdr = FALSE; | |
4750 | } | |
4751 | } | |
4752 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4753 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4754 | /* If file and program headers would be placed at the end | |
4755 | of memory then it's probably better to omit them. */ | |
4756 | phdr_in_segment = FALSE; | |
4757 | else if (phdr_lma < wrap_to) | |
4758 | /* If a section wraps around to where we'll be placing | |
4759 | file and program headers, then the headers will be | |
4760 | overwritten. */ | |
4761 | phdr_in_segment = FALSE; | |
4762 | else if (separate_phdr) | |
4763 | { | |
4764 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4765 | if (m == NULL) | |
4766 | goto error_return; | |
4767 | m->p_paddr = phdr_lma; | |
4768 | m->p_vaddr_offset | |
4769 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4770 | m->p_paddr_valid = 1; | |
4771 | *pm = m; | |
4772 | pm = &m->next; | |
4773 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4774 | } |
252b5132 RH |
4775 | } |
4776 | ||
8ded5a0f | 4777 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4778 | { |
8ded5a0f AM |
4779 | asection *hdr; |
4780 | bfd_boolean new_segment; | |
4781 | ||
4782 | hdr = *hdrpp; | |
4783 | ||
4784 | /* See if this section and the last one will fit in the same | |
4785 | segment. */ | |
4786 | ||
4787 | if (last_hdr == NULL) | |
4788 | { | |
4789 | /* If we don't have a segment yet, then we don't need a new | |
4790 | one (we build the last one after this loop). */ | |
4791 | new_segment = FALSE; | |
4792 | } | |
4793 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4794 | { | |
4795 | /* If this section has a different relation between the | |
4796 | virtual address and the load address, then we need a new | |
4797 | segment. */ | |
4798 | new_segment = TRUE; | |
4799 | } | |
b5599592 AM |
4800 | else if (hdr->lma < last_hdr->lma + last_size |
4801 | || last_hdr->lma + last_size < last_hdr->lma) | |
4802 | { | |
4803 | /* If this section has a load address that makes it overlap | |
4804 | the previous section, then we need a new segment. */ | |
4805 | new_segment = TRUE; | |
4806 | } | |
76cb3a89 AM |
4807 | else if ((abfd->flags & D_PAGED) != 0 |
4808 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4809 | == (hdr->lma & -maxpagesize))) | |
4810 | { | |
4811 | /* If we are demand paged then we can't map two disk | |
4812 | pages onto the same memory page. */ | |
4813 | new_segment = FALSE; | |
4814 | } | |
39948a60 NC |
4815 | /* In the next test we have to be careful when last_hdr->lma is close |
4816 | to the end of the address space. If the aligned address wraps | |
4817 | around to the start of the address space, then there are no more | |
4818 | pages left in memory and it is OK to assume that the current | |
4819 | section can be included in the current segment. */ | |
76cb3a89 AM |
4820 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4821 | + maxpagesize > last_hdr->lma) | |
4822 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4823 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4824 | { |
4825 | /* If putting this section in this segment would force us to | |
4826 | skip a page in the segment, then we need a new segment. */ | |
4827 | new_segment = TRUE; | |
4828 | } | |
4829 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4830 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4831 | { |
e5654c0f AM |
4832 | /* We don't want to put a loaded section after a |
4833 | nonloaded (ie. bss style) section in the same segment | |
4834 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4835 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4836 | new_segment = TRUE; |
4837 | } | |
4838 | else if ((abfd->flags & D_PAGED) == 0) | |
4839 | { | |
4840 | /* If the file is not demand paged, which means that we | |
4841 | don't require the sections to be correctly aligned in the | |
4842 | file, then there is no other reason for a new segment. */ | |
4843 | new_segment = FALSE; | |
4844 | } | |
2888249f L |
4845 | else if (info != NULL |
4846 | && info->separate_code | |
4847 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4848 | { | |
4849 | new_segment = TRUE; | |
4850 | } | |
8ded5a0f | 4851 | else if (! writable |
76cb3a89 | 4852 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4853 | { |
4854 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4855 | segment. */ |
8ded5a0f AM |
4856 | new_segment = TRUE; |
4857 | } | |
4858 | else | |
4859 | { | |
4860 | /* Otherwise, we can use the same segment. */ | |
4861 | new_segment = FALSE; | |
4862 | } | |
4863 | ||
2889e75b | 4864 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4865 | if (last_hdr != NULL |
4866 | && info != NULL | |
4867 | && info->callbacks->override_segment_assignment != NULL) | |
4868 | new_segment | |
4869 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4870 | last_hdr, | |
4871 | new_segment); | |
2889e75b | 4872 | |
8ded5a0f AM |
4873 | if (! new_segment) |
4874 | { | |
4875 | if ((hdr->flags & SEC_READONLY) == 0) | |
4876 | writable = TRUE; | |
2888249f L |
4877 | if ((hdr->flags & SEC_CODE) != 0) |
4878 | executable = TRUE; | |
8ded5a0f AM |
4879 | last_hdr = hdr; |
4880 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4881 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4882 | continue; |
4883 | } | |
4884 | ||
4885 | /* We need a new program segment. We must create a new program | |
00bee008 | 4886 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4887 | |
00bee008 | 4888 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4889 | if (m == NULL) |
4890 | goto error_return; | |
4891 | ||
4892 | *pm = m; | |
4893 | pm = &m->next; | |
4894 | ||
252b5132 | 4895 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4896 | writable = TRUE; |
8ded5a0f AM |
4897 | else |
4898 | writable = FALSE; | |
4899 | ||
2888249f L |
4900 | if ((hdr->flags & SEC_CODE) == 0) |
4901 | executable = FALSE; | |
4902 | else | |
4903 | executable = TRUE; | |
4904 | ||
baaff79e JJ |
4905 | last_hdr = hdr; |
4906 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4907 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4908 | hdr_index = i; |
8ded5a0f | 4909 | phdr_in_segment = FALSE; |
252b5132 RH |
4910 | } |
4911 | ||
86b2281f AM |
4912 | /* Create a final PT_LOAD program segment, but not if it's just |
4913 | for .tbss. */ | |
4914 | if (last_hdr != NULL | |
00bee008 | 4915 | && (i - hdr_index != 1 |
dbc88fc1 | 4916 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4917 | { |
00bee008 | 4918 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4919 | if (m == NULL) |
4920 | goto error_return; | |
252b5132 | 4921 | |
8ded5a0f AM |
4922 | *pm = m; |
4923 | pm = &m->next; | |
4924 | } | |
252b5132 | 4925 | |
8ded5a0f AM |
4926 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4927 | if (dynsec != NULL) | |
4928 | { | |
4929 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4930 | if (m == NULL) | |
4931 | goto error_return; | |
4932 | *pm = m; | |
4933 | pm = &m->next; | |
4934 | } | |
252b5132 | 4935 | |
23e463ed | 4936 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4937 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
4938 | because if we link together nonloadable .note sections and | |
4939 | loadable .note sections, we will generate two .note sections | |
23e463ed | 4940 | in the output file. */ |
8ded5a0f AM |
4941 | for (s = abfd->sections; s != NULL; s = s->next) |
4942 | { | |
4943 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 4944 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4945 | { |
1c5265b5 | 4946 | asection *s2; |
23e463ed | 4947 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
4948 | |
4949 | count = 1; | |
23e463ed L |
4950 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
4951 | { | |
4952 | if (s2->next->alignment_power == alignment_power | |
4953 | && (s2->next->flags & SEC_LOAD) != 0 | |
4954 | && elf_section_type (s2->next) == SHT_NOTE | |
4955 | && align_power (s2->lma + s2->size, | |
4956 | alignment_power) | |
4957 | == s2->next->lma) | |
4958 | count++; | |
4959 | else | |
4960 | break; | |
4961 | } | |
00bee008 AM |
4962 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4963 | amt += count * sizeof (asection *); | |
a50b1753 | 4964 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4965 | if (m == NULL) |
4966 | goto error_return; | |
4967 | m->next = NULL; | |
4968 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4969 | m->count = count; |
4970 | while (count > 1) | |
4971 | { | |
4972 | m->sections[m->count - count--] = s; | |
4973 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4974 | s = s->next; | |
4975 | } | |
4976 | m->sections[m->count - 1] = s; | |
4977 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4978 | *pm = m; |
4979 | pm = &m->next; | |
4980 | } | |
4981 | if (s->flags & SEC_THREAD_LOCAL) | |
4982 | { | |
4983 | if (! tls_count) | |
4984 | first_tls = s; | |
4985 | tls_count++; | |
4986 | } | |
a91e1603 L |
4987 | if (first_mbind == NULL |
4988 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
4989 | first_mbind = s; | |
8ded5a0f | 4990 | } |
252b5132 | 4991 | |
8ded5a0f AM |
4992 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4993 | if (tls_count > 0) | |
4994 | { | |
00bee008 AM |
4995 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4996 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 4997 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4998 | if (m == NULL) |
4999 | goto error_return; | |
5000 | m->next = NULL; | |
5001 | m->p_type = PT_TLS; | |
5002 | m->count = tls_count; | |
5003 | /* Mandated PF_R. */ | |
5004 | m->p_flags = PF_R; | |
5005 | m->p_flags_valid = 1; | |
d923cae0 | 5006 | s = first_tls; |
91d6fa6a | 5007 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 5008 | { |
d923cae0 L |
5009 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5010 | { | |
5011 | _bfd_error_handler | |
871b3ab2 | 5012 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5013 | s = first_tls; |
5014 | i = 0; | |
5015 | while (i < (unsigned int) tls_count) | |
5016 | { | |
5017 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5018 | { | |
871b3ab2 | 5019 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5020 | i++; |
5021 | } | |
5022 | else | |
871b3ab2 | 5023 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5024 | s = s->next; |
5025 | } | |
5026 | bfd_set_error (bfd_error_bad_value); | |
5027 | goto error_return; | |
5028 | } | |
5029 | m->sections[i] = s; | |
5030 | s = s->next; | |
8ded5a0f | 5031 | } |
252b5132 | 5032 | |
8ded5a0f AM |
5033 | *pm = m; |
5034 | pm = &m->next; | |
5035 | } | |
252b5132 | 5036 | |
a91e1603 L |
5037 | if (first_mbind && (abfd->flags & D_PAGED) != 0) |
5038 | for (s = first_mbind; s != NULL; s = s->next) | |
5039 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
5040 | && (elf_section_data (s)->this_hdr.sh_info | |
5041 | <= PT_GNU_MBIND_NUM)) | |
5042 | { | |
5043 | /* Mandated PF_R. */ | |
5044 | unsigned long p_flags = PF_R; | |
5045 | if ((s->flags & SEC_READONLY) == 0) | |
5046 | p_flags |= PF_W; | |
5047 | if ((s->flags & SEC_CODE) != 0) | |
5048 | p_flags |= PF_X; | |
5049 | ||
5050 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5051 | m = bfd_zalloc (abfd, amt); | |
5052 | if (m == NULL) | |
5053 | goto error_return; | |
5054 | m->next = NULL; | |
5055 | m->p_type = (PT_GNU_MBIND_LO | |
5056 | + elf_section_data (s)->this_hdr.sh_info); | |
5057 | m->count = 1; | |
5058 | m->p_flags_valid = 1; | |
5059 | m->sections[0] = s; | |
5060 | m->p_flags = p_flags; | |
5061 | ||
5062 | *pm = m; | |
5063 | pm = &m->next; | |
5064 | } | |
5065 | ||
0a59decb L |
5066 | s = bfd_get_section_by_name (abfd, |
5067 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5068 | if (s != NULL && s->size != 0) | |
5069 | { | |
5070 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5071 | m = bfd_zalloc (abfd, amt); | |
5072 | if (m == NULL) | |
5073 | goto error_return; | |
5074 | m->next = NULL; | |
5075 | m->p_type = PT_GNU_PROPERTY; | |
5076 | m->count = 1; | |
5077 | m->p_flags_valid = 1; | |
5078 | m->sections[0] = s; | |
5079 | m->p_flags = PF_R; | |
5080 | *pm = m; | |
5081 | pm = &m->next; | |
5082 | } | |
5083 | ||
8ded5a0f AM |
5084 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5085 | segment. */ | |
12bd6957 | 5086 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5087 | if (eh_frame_hdr != NULL |
5088 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5089 | { |
dc810e39 | 5090 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5091 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5092 | if (m == NULL) |
5093 | goto error_return; | |
5094 | m->next = NULL; | |
8ded5a0f | 5095 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5096 | m->count = 1; |
8ded5a0f | 5097 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5098 | |
5099 | *pm = m; | |
5100 | pm = &m->next; | |
5101 | } | |
13ae64f3 | 5102 | |
12bd6957 | 5103 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5104 | { |
8ded5a0f | 5105 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5106 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5107 | if (m == NULL) |
5108 | goto error_return; | |
5109 | m->next = NULL; | |
2b05f1b7 | 5110 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5111 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5112 | m->p_align = bed->stack_align; |
8ded5a0f | 5113 | m->p_flags_valid = 1; |
04c3a755 NS |
5114 | m->p_align_valid = m->p_align != 0; |
5115 | if (info->stacksize > 0) | |
5116 | { | |
5117 | m->p_size = info->stacksize; | |
5118 | m->p_size_valid = 1; | |
5119 | } | |
252b5132 | 5120 | |
8ded5a0f AM |
5121 | *pm = m; |
5122 | pm = &m->next; | |
5123 | } | |
65765700 | 5124 | |
ceae84aa | 5125 | if (info != NULL && info->relro) |
8ded5a0f | 5126 | { |
f210dcff L |
5127 | for (m = mfirst; m != NULL; m = m->next) |
5128 | { | |
3832a4d8 AM |
5129 | if (m->p_type == PT_LOAD |
5130 | && m->count != 0 | |
5131 | && m->sections[0]->vma >= info->relro_start | |
5132 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5133 | { |
3832a4d8 AM |
5134 | i = m->count; |
5135 | while (--i != (unsigned) -1) | |
5136 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5137 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5138 | break; | |
5139 | ||
43a8475c | 5140 | if (i != (unsigned) -1) |
f210dcff L |
5141 | break; |
5142 | } | |
be01b344 | 5143 | } |
f210dcff L |
5144 | |
5145 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5146 | if (m != NULL) | |
5147 | { | |
5148 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5149 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5150 | if (m == NULL) |
5151 | goto error_return; | |
5152 | m->next = NULL; | |
5153 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5154 | *pm = m; |
5155 | pm = &m->next; | |
5156 | } | |
8ded5a0f | 5157 | } |
9ee5e499 | 5158 | |
8ded5a0f | 5159 | free (sections); |
12bd6957 | 5160 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5161 | } |
5162 | ||
3dea8fca | 5163 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5164 | return FALSE; |
8c37241b | 5165 | |
12bd6957 | 5166 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5167 | ++count; |
12bd6957 | 5168 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5169 | |
b34976b6 | 5170 | return TRUE; |
252b5132 RH |
5171 | |
5172 | error_return: | |
5173 | if (sections != NULL) | |
5174 | free (sections); | |
b34976b6 | 5175 | return FALSE; |
252b5132 RH |
5176 | } |
5177 | ||
5178 | /* Sort sections by address. */ | |
5179 | ||
5180 | static int | |
217aa764 | 5181 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5182 | { |
5183 | const asection *sec1 = *(const asection **) arg1; | |
5184 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5185 | bfd_size_type size1, size2; |
252b5132 RH |
5186 | |
5187 | /* Sort by LMA first, since this is the address used to | |
5188 | place the section into a segment. */ | |
5189 | if (sec1->lma < sec2->lma) | |
5190 | return -1; | |
5191 | else if (sec1->lma > sec2->lma) | |
5192 | return 1; | |
5193 | ||
5194 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5195 | the same, and this will do nothing. */ | |
5196 | if (sec1->vma < sec2->vma) | |
5197 | return -1; | |
5198 | else if (sec1->vma > sec2->vma) | |
5199 | return 1; | |
5200 | ||
5201 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5202 | ||
07c6e936 | 5203 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5204 | |
5205 | if (TOEND (sec1)) | |
5206 | { | |
5207 | if (TOEND (sec2)) | |
00a7cdc5 | 5208 | { |
67ce483b | 5209 | /* If the indices are the same, do not return 0 |
00a7cdc5 NC |
5210 | here, but continue to try the next comparison. */ |
5211 | if (sec1->target_index - sec2->target_index != 0) | |
5212 | return sec1->target_index - sec2->target_index; | |
5213 | } | |
252b5132 RH |
5214 | else |
5215 | return 1; | |
5216 | } | |
00a7cdc5 | 5217 | else if (TOEND (sec2)) |
252b5132 RH |
5218 | return -1; |
5219 | ||
5220 | #undef TOEND | |
5221 | ||
00a7cdc5 NC |
5222 | /* Sort by size, to put zero sized sections |
5223 | before others at the same address. */ | |
252b5132 | 5224 | |
eea6121a AM |
5225 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5226 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5227 | |
5228 | if (size1 < size2) | |
252b5132 | 5229 | return -1; |
eecdbe52 | 5230 | if (size1 > size2) |
252b5132 RH |
5231 | return 1; |
5232 | ||
5233 | return sec1->target_index - sec2->target_index; | |
5234 | } | |
5235 | ||
340b6d91 AC |
5236 | /* Ian Lance Taylor writes: |
5237 | ||
5238 | We shouldn't be using % with a negative signed number. That's just | |
5239 | not good. We have to make sure either that the number is not | |
5240 | negative, or that the number has an unsigned type. When the types | |
5241 | are all the same size they wind up as unsigned. When file_ptr is a | |
5242 | larger signed type, the arithmetic winds up as signed long long, | |
5243 | which is wrong. | |
5244 | ||
5245 | What we're trying to say here is something like ``increase OFF by | |
5246 | the least amount that will cause it to be equal to the VMA modulo | |
5247 | the page size.'' */ | |
5248 | /* In other words, something like: | |
5249 | ||
5250 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5251 | off_offset = off % bed->maxpagesize; | |
5252 | if (vma_offset < off_offset) | |
5253 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5254 | else | |
5255 | adjustment = vma_offset - off_offset; | |
08a40648 | 5256 | |
de194d85 | 5257 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5258 | |
5259 | static file_ptr | |
5260 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5261 | { | |
dc9155b2 NC |
5262 | /* PR binutils/16199: Handle an alignment of zero. */ |
5263 | if (maxpagesize == 0) | |
5264 | maxpagesize = 1; | |
340b6d91 AC |
5265 | return ((vma - off) % maxpagesize); |
5266 | } | |
5267 | ||
6d33f217 L |
5268 | static void |
5269 | print_segment_map (const struct elf_segment_map *m) | |
5270 | { | |
5271 | unsigned int j; | |
5272 | const char *pt = get_segment_type (m->p_type); | |
5273 | char buf[32]; | |
5274 | ||
5275 | if (pt == NULL) | |
5276 | { | |
5277 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5278 | sprintf (buf, "LOPROC+%7.7x", | |
5279 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5280 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5281 | sprintf (buf, "LOOS+%7.7x", | |
5282 | (unsigned int) (m->p_type - PT_LOOS)); | |
5283 | else | |
5284 | snprintf (buf, sizeof (buf), "%8.8x", | |
5285 | (unsigned int) m->p_type); | |
5286 | pt = buf; | |
5287 | } | |
4a97a0e5 | 5288 | fflush (stdout); |
6d33f217 L |
5289 | fprintf (stderr, "%s:", pt); |
5290 | for (j = 0; j < m->count; j++) | |
5291 | fprintf (stderr, " %s", m->sections [j]->name); | |
5292 | putc ('\n',stderr); | |
4a97a0e5 | 5293 | fflush (stderr); |
6d33f217 L |
5294 | } |
5295 | ||
32812159 AM |
5296 | static bfd_boolean |
5297 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5298 | { | |
5299 | void *buf; | |
5300 | bfd_boolean ret; | |
5301 | ||
5302 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5303 | return FALSE; | |
5304 | buf = bfd_zmalloc (len); | |
5305 | if (buf == NULL) | |
5306 | return FALSE; | |
5307 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5308 | free (buf); | |
5309 | return ret; | |
5310 | } | |
5311 | ||
252b5132 RH |
5312 | /* Assign file positions to the sections based on the mapping from |
5313 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5314 | the file header. */ |
252b5132 | 5315 | |
b34976b6 | 5316 | static bfd_boolean |
f3520d2f AM |
5317 | assign_file_positions_for_load_sections (bfd *abfd, |
5318 | struct bfd_link_info *link_info) | |
252b5132 RH |
5319 | { |
5320 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5321 | struct elf_segment_map *m; |
252b5132 | 5322 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5323 | Elf_Internal_Phdr *p; |
02bf8d82 | 5324 | file_ptr off; |
3f570048 | 5325 | bfd_size_type maxpagesize; |
a8c75b76 | 5326 | unsigned int pt_load_count = 0; |
f3520d2f | 5327 | unsigned int alloc; |
0920dee7 | 5328 | unsigned int i, j; |
2b0bc088 | 5329 | bfd_vma header_pad = 0; |
252b5132 | 5330 | |
e36284ab | 5331 | if (link_info == NULL |
ceae84aa | 5332 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5333 | return FALSE; |
252b5132 | 5334 | |
8ded5a0f | 5335 | alloc = 0; |
12bd6957 | 5336 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
5337 | { |
5338 | ++alloc; | |
5339 | if (m->header_size) | |
5340 | header_pad = m->header_size; | |
5341 | } | |
252b5132 | 5342 | |
82f2dbf7 NC |
5343 | if (alloc) |
5344 | { | |
5345 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5346 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5347 | } | |
5348 | else | |
5349 | { | |
5350 | /* PR binutils/12467. */ | |
5351 | elf_elfheader (abfd)->e_phoff = 0; | |
5352 | elf_elfheader (abfd)->e_phentsize = 0; | |
5353 | } | |
d324f6d6 | 5354 | |
8ded5a0f | 5355 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5356 | |
12bd6957 AM |
5357 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
5358 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 5359 | else |
12bd6957 | 5360 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 5361 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
5362 | |
5363 | if (alloc == 0) | |
f3520d2f | 5364 | { |
12bd6957 | 5365 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5366 | return TRUE; |
f3520d2f | 5367 | } |
252b5132 | 5368 | |
12bd6957 | 5369 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5370 | see assign_file_positions_except_relocs, so make sure we have |
5371 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5372 | The variable alloc contains the computed need, while |
5373 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5374 | layout. |
5375 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5376 | where the layout is forced to according to a larger size in the | |
5377 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 5378 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 5379 | == 0); |
a50b1753 NC |
5380 | phdrs = (Elf_Internal_Phdr *) |
5381 | bfd_zalloc2 (abfd, | |
07d6d2b8 AM |
5382 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
5383 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 5384 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5385 | if (phdrs == NULL) |
b34976b6 | 5386 | return FALSE; |
252b5132 | 5387 | |
3f570048 AM |
5388 | maxpagesize = 1; |
5389 | if ((abfd->flags & D_PAGED) != 0) | |
5390 | maxpagesize = bed->maxpagesize; | |
5391 | ||
252b5132 RH |
5392 | off = bed->s->sizeof_ehdr; |
5393 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5394 | if (header_pad < (bfd_vma) off) |
5395 | header_pad = 0; | |
5396 | else | |
5397 | header_pad -= off; | |
5398 | off += header_pad; | |
252b5132 | 5399 | |
12bd6957 | 5400 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 5401 | m != NULL; |
0920dee7 | 5402 | m = m->next, p++, j++) |
252b5132 | 5403 | { |
252b5132 | 5404 | asection **secpp; |
bf988460 AM |
5405 | bfd_vma off_adjust; |
5406 | bfd_boolean no_contents; | |
252b5132 RH |
5407 | |
5408 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 5409 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5410 | not be done to the PT_NOTE section of a corefile, which may |
5411 | contain several pseudo-sections artificially created by bfd. | |
5412 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5413 | if (m->count > 1 |
5414 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5415 | && m->p_type == PT_NOTE)) |
252b5132 RH |
5416 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
5417 | elf_sort_sections); | |
5418 | ||
b301b248 AM |
5419 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5420 | number of sections with contents contributing to both p_filesz | |
5421 | and p_memsz, followed by a number of sections with no contents | |
5422 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5423 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 5424 | p->p_type = m->p_type; |
28a7f3e7 | 5425 | p->p_flags = m->p_flags; |
252b5132 | 5426 | |
3f570048 | 5427 | if (m->count == 0) |
5d695627 | 5428 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5429 | else |
5d695627 | 5430 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5431 | |
5432 | if (m->p_paddr_valid) | |
5433 | p->p_paddr = m->p_paddr; | |
5434 | else if (m->count == 0) | |
5435 | p->p_paddr = 0; | |
5436 | else | |
5d695627 | 5437 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5438 | |
5439 | if (p->p_type == PT_LOAD | |
5440 | && (abfd->flags & D_PAGED) != 0) | |
5441 | { | |
5442 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5443 | the maximum page size. When copying an executable with | |
5444 | objcopy, we set m->p_align from the input file. Use this | |
5445 | value for maxpagesize rather than bed->maxpagesize, which | |
5446 | may be different. Note that we use maxpagesize for PT_TLS | |
5447 | segment alignment later in this function, so we are relying | |
5448 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5449 | segment. */ | |
5450 | if (m->p_align_valid) | |
5451 | maxpagesize = m->p_align; | |
5452 | ||
5453 | p->p_align = maxpagesize; | |
a8c75b76 | 5454 | pt_load_count += 1; |
3f570048 | 5455 | } |
3271a814 NS |
5456 | else if (m->p_align_valid) |
5457 | p->p_align = m->p_align; | |
e970b90a DJ |
5458 | else if (m->count == 0) |
5459 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
5460 | else |
5461 | p->p_align = 0; | |
5462 | ||
bf988460 AM |
5463 | no_contents = FALSE; |
5464 | off_adjust = 0; | |
252b5132 | 5465 | if (p->p_type == PT_LOAD |
b301b248 | 5466 | && m->count > 0) |
252b5132 | 5467 | { |
b301b248 | 5468 | bfd_size_type align; |
a49e53ed | 5469 | unsigned int align_power = 0; |
b301b248 | 5470 | |
3271a814 NS |
5471 | if (m->p_align_valid) |
5472 | align = p->p_align; | |
5473 | else | |
252b5132 | 5474 | { |
3271a814 NS |
5475 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5476 | { | |
5477 | unsigned int secalign; | |
08a40648 | 5478 | |
3271a814 NS |
5479 | secalign = bfd_get_section_alignment (abfd, *secpp); |
5480 | if (secalign > align_power) | |
5481 | align_power = secalign; | |
5482 | } | |
5483 | align = (bfd_size_type) 1 << align_power; | |
5484 | if (align < maxpagesize) | |
5485 | align = maxpagesize; | |
b301b248 | 5486 | } |
252b5132 | 5487 | |
02bf8d82 AM |
5488 | for (i = 0; i < m->count; i++) |
5489 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5490 | /* If we aren't making room for this section, then | |
5491 | it must be SHT_NOBITS regardless of what we've | |
5492 | set via struct bfd_elf_special_section. */ | |
5493 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5494 | ||
bf988460 | 5495 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5496 | sections. */ |
5497 | no_contents = TRUE; | |
5498 | for (i = 0; i < m->count; i++) | |
5499 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5500 | { | |
5501 | no_contents = FALSE; | |
5502 | break; | |
5503 | } | |
bf988460 | 5504 | |
85cfcbfb | 5505 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5506 | |
5507 | /* Broken hardware and/or kernel require that files do not | |
5508 | map the same page with different permissions on some hppa | |
5509 | processors. */ | |
5510 | if (pt_load_count > 1 | |
5511 | && bed->no_page_alias | |
5512 | && (off & (maxpagesize - 1)) != 0 | |
5513 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5514 | off_adjust += maxpagesize; | |
bf988460 AM |
5515 | off += off_adjust; |
5516 | if (no_contents) | |
5517 | { | |
5518 | /* We shouldn't need to align the segment on disk since | |
5519 | the segment doesn't need file space, but the gABI | |
5520 | arguably requires the alignment and glibc ld.so | |
5521 | checks it. So to comply with the alignment | |
5522 | requirement but not waste file space, we adjust | |
5523 | p_offset for just this segment. (OFF_ADJUST is | |
5524 | subtracted from OFF later.) This may put p_offset | |
5525 | past the end of file, but that shouldn't matter. */ | |
5526 | } | |
5527 | else | |
5528 | off_adjust = 0; | |
252b5132 | 5529 | } |
b1a6d0b1 NC |
5530 | /* Make sure the .dynamic section is the first section in the |
5531 | PT_DYNAMIC segment. */ | |
5532 | else if (p->p_type == PT_DYNAMIC | |
5533 | && m->count > 1 | |
5534 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5535 | { | |
5536 | _bfd_error_handler | |
871b3ab2 | 5537 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5538 | " is not the .dynamic section"), |
b301b248 | 5539 | abfd); |
b1a6d0b1 NC |
5540 | bfd_set_error (bfd_error_bad_value); |
5541 | return FALSE; | |
5542 | } | |
3f001e84 JK |
5543 | /* Set the note section type to SHT_NOTE. */ |
5544 | else if (p->p_type == PT_NOTE) | |
5545 | for (i = 0; i < m->count; i++) | |
5546 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5547 | |
252b5132 RH |
5548 | p->p_offset = 0; |
5549 | p->p_filesz = 0; | |
5550 | p->p_memsz = 0; | |
5551 | ||
5552 | if (m->includes_filehdr) | |
5553 | { | |
bf988460 | 5554 | if (!m->p_flags_valid) |
252b5132 | 5555 | p->p_flags |= PF_R; |
252b5132 RH |
5556 | p->p_filesz = bed->s->sizeof_ehdr; |
5557 | p->p_memsz = bed->s->sizeof_ehdr; | |
5558 | if (m->count > 0) | |
5559 | { | |
9ab82472 L |
5560 | if (p->p_vaddr < (bfd_vma) off |
5561 | || (!m->p_paddr_valid | |
5562 | && p->p_paddr < (bfd_vma) off)) | |
252b5132 | 5563 | { |
4eca0228 | 5564 | _bfd_error_handler |
9793eb77 | 5565 | (_("%pB: not enough room for program headers," |
63a5468a | 5566 | " try linking with -N"), |
b301b248 | 5567 | abfd); |
252b5132 | 5568 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5569 | return FALSE; |
252b5132 RH |
5570 | } |
5571 | ||
5572 | p->p_vaddr -= off; | |
bf988460 | 5573 | if (!m->p_paddr_valid) |
252b5132 RH |
5574 | p->p_paddr -= off; |
5575 | } | |
252b5132 RH |
5576 | } |
5577 | ||
5578 | if (m->includes_phdrs) | |
5579 | { | |
bf988460 | 5580 | if (!m->p_flags_valid) |
252b5132 RH |
5581 | p->p_flags |= PF_R; |
5582 | ||
f3520d2f | 5583 | if (!m->includes_filehdr) |
252b5132 RH |
5584 | { |
5585 | p->p_offset = bed->s->sizeof_ehdr; | |
5586 | ||
5587 | if (m->count > 0) | |
5588 | { | |
252b5132 | 5589 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 5590 | if (!m->p_paddr_valid) |
252b5132 RH |
5591 | p->p_paddr -= off - p->p_offset; |
5592 | } | |
252b5132 RH |
5593 | } |
5594 | ||
5595 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
5596 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5597 | if (m->count) |
5598 | { | |
5599 | p->p_filesz += header_pad; | |
5600 | p->p_memsz += header_pad; | |
5601 | } | |
252b5132 RH |
5602 | } |
5603 | ||
5604 | if (p->p_type == PT_LOAD | |
5605 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5606 | { | |
bf988460 | 5607 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5608 | p->p_offset = off; |
252b5132 RH |
5609 | else |
5610 | { | |
5611 | file_ptr adjust; | |
5612 | ||
5613 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5614 | if (!no_contents) |
5615 | p->p_filesz += adjust; | |
252b5132 RH |
5616 | p->p_memsz += adjust; |
5617 | } | |
5618 | } | |
5619 | ||
1ea63fd2 AM |
5620 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5621 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5622 | core files, for sections in PT_NOTE segments. | |
5623 | assign_file_positions_for_non_load_sections will set filepos | |
5624 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5625 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5626 | { | |
5627 | asection *sec; | |
252b5132 | 5628 | bfd_size_type align; |
627b32bc | 5629 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5630 | |
5631 | sec = *secpp; | |
02bf8d82 | 5632 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5633 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5634 | |
88967714 AM |
5635 | if ((p->p_type == PT_LOAD |
5636 | || p->p_type == PT_TLS) | |
5637 | && (this_hdr->sh_type != SHT_NOBITS | |
5638 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5639 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5640 | || p->p_type == PT_TLS)))) | |
252b5132 | 5641 | { |
b5599592 AM |
5642 | bfd_vma p_start = p->p_paddr; |
5643 | bfd_vma p_end = p_start + p->p_memsz; | |
5644 | bfd_vma s_start = sec->lma; | |
5645 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5646 | |
a2d1e028 L |
5647 | if (adjust != 0 |
5648 | && (s_start < p_end | |
5649 | || p_end < p_start)) | |
252b5132 | 5650 | { |
4eca0228 | 5651 | _bfd_error_handler |
695344c0 | 5652 | /* xgettext:c-format */ |
2dcf00ce AM |
5653 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5654 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5655 | adjust = 0; |
b5599592 | 5656 | sec->lma = p_end; |
1cfb7d1e | 5657 | } |
3ac9b6c9 | 5658 | p->p_memsz += adjust; |
1cfb7d1e | 5659 | |
88967714 AM |
5660 | if (this_hdr->sh_type != SHT_NOBITS) |
5661 | { | |
32812159 AM |
5662 | if (p->p_filesz + adjust < p->p_memsz) |
5663 | { | |
5664 | /* We have a PROGBITS section following NOBITS ones. | |
07d6d2b8 | 5665 | Allocate file space for the NOBITS section(s) and |
32812159 AM |
5666 | zero it. */ |
5667 | adjust = p->p_memsz - p->p_filesz; | |
5668 | if (!write_zeros (abfd, off, adjust)) | |
5669 | return FALSE; | |
5670 | } | |
88967714 AM |
5671 | off += adjust; |
5672 | p->p_filesz += adjust; | |
252b5132 | 5673 | } |
252b5132 RH |
5674 | } |
5675 | ||
5676 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5677 | { | |
b301b248 AM |
5678 | /* The section at i == 0 is the one that actually contains |
5679 | everything. */ | |
4a938328 MS |
5680 | if (i == 0) |
5681 | { | |
627b32bc | 5682 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5683 | off += this_hdr->sh_size; |
5684 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5685 | p->p_memsz = 0; |
5686 | p->p_align = 1; | |
252b5132 | 5687 | } |
4a938328 | 5688 | else |
252b5132 | 5689 | { |
b301b248 | 5690 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5691 | sec->filepos = 0; |
eea6121a | 5692 | sec->size = 0; |
b301b248 AM |
5693 | sec->flags = 0; |
5694 | continue; | |
252b5132 | 5695 | } |
252b5132 RH |
5696 | } |
5697 | else | |
5698 | { | |
1e951488 | 5699 | if (p->p_type == PT_LOAD) |
b301b248 | 5700 | { |
1e951488 AM |
5701 | this_hdr->sh_offset = sec->filepos = off; |
5702 | if (this_hdr->sh_type != SHT_NOBITS) | |
5703 | off += this_hdr->sh_size; | |
5704 | } | |
5705 | else if (this_hdr->sh_type == SHT_NOBITS | |
5706 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5707 | && this_hdr->sh_offset == 0) | |
5708 | { | |
5709 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5710 | (See _bfd_elf_map_sections_to_segments "Create a | |
5711 | final PT_LOAD".) Set sh_offset to the value it | |
5712 | would have if we had created a zero p_filesz and | |
5713 | p_memsz PT_LOAD header for the section. This | |
5714 | also makes the PT_TLS header have the same | |
5715 | p_offset value. */ | |
5716 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5717 | off, align); | |
5718 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5719 | } |
252b5132 | 5720 | |
02bf8d82 | 5721 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5722 | { |
6a3cd2b4 | 5723 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5724 | /* A load section without SHF_ALLOC is something like |
5725 | a note section in a PT_NOTE segment. These take | |
5726 | file space but are not loaded into memory. */ | |
5727 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5728 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5729 | } |
6a3cd2b4 | 5730 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5731 | { |
6a3cd2b4 AM |
5732 | if (p->p_type == PT_TLS) |
5733 | p->p_memsz += this_hdr->sh_size; | |
5734 | ||
5735 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5736 | normal segments. */ | |
5737 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5738 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5739 | } |
5740 | ||
b10a8ae0 L |
5741 | if (align > p->p_align |
5742 | && !m->p_align_valid | |
5743 | && (p->p_type != PT_LOAD | |
5744 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5745 | p->p_align = align; |
5746 | } | |
5747 | ||
bf988460 | 5748 | if (!m->p_flags_valid) |
252b5132 RH |
5749 | { |
5750 | p->p_flags |= PF_R; | |
02bf8d82 | 5751 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5752 | p->p_flags |= PF_X; |
02bf8d82 | 5753 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5754 | p->p_flags |= PF_W; |
5755 | } | |
5756 | } | |
43a8475c | 5757 | |
bf988460 | 5758 | off -= off_adjust; |
0920dee7 | 5759 | |
7c928300 AM |
5760 | /* Check that all sections are in a PT_LOAD segment. |
5761 | Don't check funky gdb generated core files. */ | |
5762 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5763 | { |
5764 | bfd_boolean check_vma = TRUE; | |
5765 | ||
5766 | for (i = 1; i < m->count; i++) | |
5767 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5768 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5769 | ->this_hdr), p) != 0 | |
5770 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5771 | ->this_hdr), p) != 0) | |
0920dee7 | 5772 | { |
9a83a553 AM |
5773 | /* Looks like we have overlays packed into the segment. */ |
5774 | check_vma = FALSE; | |
5775 | break; | |
0920dee7 | 5776 | } |
9a83a553 AM |
5777 | |
5778 | for (i = 0; i < m->count; i++) | |
5779 | { | |
5780 | Elf_Internal_Shdr *this_hdr; | |
5781 | asection *sec; | |
5782 | ||
5783 | sec = m->sections[i]; | |
5784 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5785 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5786 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5787 | { |
4eca0228 | 5788 | _bfd_error_handler |
695344c0 | 5789 | /* xgettext:c-format */ |
871b3ab2 | 5790 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5791 | abfd, sec, j); |
5792 | print_segment_map (m); | |
5793 | } | |
5794 | } | |
5795 | } | |
252b5132 RH |
5796 | } |
5797 | ||
12bd6957 | 5798 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5799 | return TRUE; |
5800 | } | |
5801 | ||
5802 | /* Assign file positions for the other sections. */ | |
5803 | ||
5804 | static bfd_boolean | |
5805 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5806 | struct bfd_link_info *link_info) | |
5807 | { | |
5808 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5809 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5810 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5811 | Elf_Internal_Phdr *phdrs; |
5812 | Elf_Internal_Phdr *p; | |
5813 | struct elf_segment_map *m; | |
62655c7b | 5814 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5815 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5816 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5817 | file_ptr off; | |
f3520d2f AM |
5818 | unsigned int count; |
5819 | ||
5c182d5f | 5820 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5821 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5822 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5823 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5824 | { |
5c182d5f AM |
5825 | Elf_Internal_Shdr *hdr; |
5826 | ||
5827 | hdr = *hdrpp; | |
5828 | if (hdr->bfd_section != NULL | |
252e386e AM |
5829 | && (hdr->bfd_section->filepos != 0 |
5830 | || (hdr->sh_type == SHT_NOBITS | |
5831 | && hdr->contents == NULL))) | |
627b32bc | 5832 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5833 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5834 | { | |
e8d2ba53 | 5835 | if (hdr->sh_size != 0) |
4eca0228 | 5836 | _bfd_error_handler |
695344c0 | 5837 | /* xgettext:c-format */ |
871b3ab2 | 5838 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
5839 | abfd, |
5840 | (hdr->bfd_section == NULL | |
5841 | ? "*unknown*" | |
5842 | : hdr->bfd_section->name)); | |
3ba71138 L |
5843 | /* We don't need to page align empty sections. */ |
5844 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5845 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5846 | bed->maxpagesize); | |
5847 | else | |
5848 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5849 | hdr->sh_addralign); | |
5850 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5851 | FALSE); | |
5852 | } | |
5853 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5854 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5855 | || (hdr->bfd_section != NULL |
5856 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5857 | /* Compress DWARF debug sections. */ | |
12bd6957 | 5858 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
5859 | || (elf_symtab_shndx_list (abfd) != NULL |
5860 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
5861 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5862 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5863 | hdr->sh_offset = -1; |
5864 | else | |
5865 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5866 | } |
5867 | ||
252b5132 RH |
5868 | /* Now that we have set the section file positions, we can set up |
5869 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5870 | count = 0; |
5871 | filehdr_vaddr = 0; | |
5872 | filehdr_paddr = 0; | |
5873 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5874 | phdrs_paddr = 0; | |
62655c7b | 5875 | hdrs_segment = NULL; |
f3520d2f | 5876 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5877 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5878 | { |
5879 | ++count; | |
5880 | if (p->p_type != PT_LOAD) | |
5881 | continue; | |
5882 | ||
5883 | if (m->includes_filehdr) | |
5884 | { | |
5885 | filehdr_vaddr = p->p_vaddr; | |
5886 | filehdr_paddr = p->p_paddr; | |
5887 | } | |
5888 | if (m->includes_phdrs) | |
5889 | { | |
5890 | phdrs_vaddr = p->p_vaddr; | |
5891 | phdrs_paddr = p->p_paddr; | |
5892 | if (m->includes_filehdr) | |
5893 | { | |
62655c7b | 5894 | hdrs_segment = m; |
f3520d2f AM |
5895 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5896 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5897 | } | |
5898 | } | |
5899 | } | |
5900 | ||
62655c7b RM |
5901 | if (hdrs_segment != NULL && link_info != NULL) |
5902 | { | |
5903 | /* There is a segment that contains both the file headers and the | |
5904 | program headers, so provide a symbol __ehdr_start pointing there. | |
5905 | A program can use this to examine itself robustly. */ | |
5906 | ||
5907 | struct elf_link_hash_entry *hash | |
5908 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5909 | FALSE, FALSE, TRUE); | |
5910 | /* If the symbol was referenced and not defined, define it. */ | |
5911 | if (hash != NULL | |
5912 | && (hash->root.type == bfd_link_hash_new | |
5913 | || hash->root.type == bfd_link_hash_undefined | |
5914 | || hash->root.type == bfd_link_hash_undefweak | |
5915 | || hash->root.type == bfd_link_hash_common)) | |
5916 | { | |
5917 | asection *s = NULL; | |
5918 | if (hdrs_segment->count != 0) | |
5919 | /* The segment contains sections, so use the first one. */ | |
5920 | s = hdrs_segment->sections[0]; | |
5921 | else | |
5922 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 5923 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
5924 | if (m->count != 0) |
5925 | { | |
5926 | s = m->sections[0]; | |
5927 | break; | |
5928 | } | |
5929 | ||
5930 | if (s != NULL) | |
5931 | { | |
5932 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5933 | hash->root.u.def.section = s; | |
5934 | } | |
5935 | else | |
5936 | { | |
5937 | hash->root.u.def.value = filehdr_vaddr; | |
5938 | hash->root.u.def.section = bfd_abs_section_ptr; | |
5939 | } | |
5940 | ||
5941 | hash->root.type = bfd_link_hash_defined; | |
5942 | hash->def_regular = 1; | |
5943 | hash->non_elf = 0; | |
5944 | } | |
5945 | } | |
5946 | ||
12bd6957 | 5947 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 5948 | { |
129af99f | 5949 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 5950 | { |
f2731e0c | 5951 | bfd_vma start, end; |
01f7e10c | 5952 | bfd_boolean ok; |
1ea63fd2 | 5953 | |
129af99f | 5954 | if (link_info != NULL) |
8c37241b | 5955 | { |
129af99f | 5956 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
5957 | in link_info. Note that there may be padding between |
5958 | relro_start and the first RELRO section. */ | |
5959 | start = link_info->relro_start; | |
5960 | end = link_info->relro_end; | |
5961 | } | |
5962 | else if (m->count != 0) | |
5963 | { | |
5964 | if (!m->p_size_valid) | |
5965 | abort (); | |
5966 | start = m->sections[0]->vma; | |
5967 | end = start + m->p_size; | |
5968 | } | |
5969 | else | |
5970 | { | |
5971 | start = 0; | |
5972 | end = 0; | |
5973 | } | |
5974 | ||
01f7e10c | 5975 | ok = FALSE; |
f2731e0c AM |
5976 | if (start < end) |
5977 | { | |
5978 | struct elf_segment_map *lm; | |
5979 | const Elf_Internal_Phdr *lp; | |
5980 | unsigned int i; | |
5981 | ||
5982 | /* Find a LOAD segment containing a section in the RELRO | |
5983 | segment. */ | |
12bd6957 | 5984 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
5985 | lm != NULL; |
5986 | lm = lm->next, lp++) | |
8c37241b JJ |
5987 | { |
5988 | if (lp->p_type == PT_LOAD | |
3146fac4 | 5989 | && lm->count != 0 |
dbc88fc1 AM |
5990 | && (lm->sections[lm->count - 1]->vma |
5991 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
5992 | ? lm->sections[lm->count - 1]->size | |
5993 | : 0)) > start | |
f2731e0c | 5994 | && lm->sections[0]->vma < end) |
8c37241b JJ |
5995 | break; |
5996 | } | |
f2731e0c | 5997 | |
01f7e10c | 5998 | if (lm != NULL) |
129af99f | 5999 | { |
01f7e10c AM |
6000 | /* Find the section starting the RELRO segment. */ |
6001 | for (i = 0; i < lm->count; i++) | |
6002 | { | |
6003 | asection *s = lm->sections[i]; | |
6004 | if (s->vma >= start | |
6005 | && s->vma < end | |
6006 | && s->size != 0) | |
6007 | break; | |
6008 | } | |
6009 | ||
6010 | if (i < lm->count) | |
6011 | { | |
6012 | p->p_vaddr = lm->sections[i]->vma; | |
6013 | p->p_paddr = lm->sections[i]->lma; | |
6014 | p->p_offset = lm->sections[i]->filepos; | |
6015 | p->p_memsz = end - p->p_vaddr; | |
6016 | p->p_filesz = p->p_memsz; | |
6017 | ||
6018 | /* The RELRO segment typically ends a few bytes | |
6019 | into .got.plt but other layouts are possible. | |
6020 | In cases where the end does not match any | |
6021 | loaded section (for instance is in file | |
6022 | padding), trim p_filesz back to correspond to | |
6023 | the end of loaded section contents. */ | |
6024 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6025 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6026 | ||
6027 | /* Preserve the alignment and flags if they are | |
6028 | valid. The gold linker generates RW/4 for | |
6029 | the PT_GNU_RELRO section. It is better for | |
6030 | objcopy/strip to honor these attributes | |
6031 | otherwise gdb will choke when using separate | |
6032 | debug files. */ | |
6033 | if (!m->p_align_valid) | |
6034 | p->p_align = 1; | |
6035 | if (!m->p_flags_valid) | |
6036 | p->p_flags = PF_R; | |
6037 | ok = TRUE; | |
6038 | } | |
129af99f | 6039 | } |
b84a33b5 | 6040 | } |
01f7e10c AM |
6041 | if (link_info != NULL) |
6042 | BFD_ASSERT (ok); | |
6043 | if (!ok) | |
6044 | memset (p, 0, sizeof *p); | |
129af99f | 6045 | } |
04c3a755 NS |
6046 | else if (p->p_type == PT_GNU_STACK) |
6047 | { | |
6048 | if (m->p_size_valid) | |
6049 | p->p_memsz = m->p_size; | |
6050 | } | |
129af99f AS |
6051 | else if (m->count != 0) |
6052 | { | |
e06efbf1 | 6053 | unsigned int i; |
1a9ccd70 | 6054 | |
129af99f AS |
6055 | if (p->p_type != PT_LOAD |
6056 | && (p->p_type != PT_NOTE | |
6057 | || bfd_get_format (abfd) != bfd_core)) | |
6058 | { | |
1a9ccd70 NC |
6059 | /* A user specified segment layout may include a PHDR |
6060 | segment that overlaps with a LOAD segment... */ | |
6061 | if (p->p_type == PT_PHDR) | |
6062 | { | |
6063 | m->count = 0; | |
6064 | continue; | |
6065 | } | |
6066 | ||
c86934ce NC |
6067 | if (m->includes_filehdr || m->includes_phdrs) |
6068 | { | |
b1fa9dd6 | 6069 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6070 | _bfd_error_handler |
871b3ab2 | 6071 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6072 | "and/or program header"), |
6073 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6074 | return FALSE; |
6075 | } | |
129af99f | 6076 | |
86b2281f | 6077 | p->p_filesz = 0; |
129af99f | 6078 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6079 | for (i = m->count; i-- != 0;) |
6080 | { | |
6081 | asection *sect = m->sections[i]; | |
6082 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6083 | if (hdr->sh_type != SHT_NOBITS) | |
6084 | { | |
6085 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6086 | + hdr->sh_size); | |
6087 | break; | |
6088 | } | |
6089 | } | |
129af99f AS |
6090 | } |
6091 | } | |
6092 | else if (m->includes_filehdr) | |
6093 | { | |
6094 | p->p_vaddr = filehdr_vaddr; | |
6095 | if (! m->p_paddr_valid) | |
6096 | p->p_paddr = filehdr_paddr; | |
6097 | } | |
6098 | else if (m->includes_phdrs) | |
6099 | { | |
6100 | p->p_vaddr = phdrs_vaddr; | |
6101 | if (! m->p_paddr_valid) | |
6102 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
6103 | } |
6104 | } | |
6105 | ||
12bd6957 | 6106 | elf_next_file_pos (abfd) = off; |
252b5132 | 6107 | |
b34976b6 | 6108 | return TRUE; |
252b5132 RH |
6109 | } |
6110 | ||
6a40cf0c NC |
6111 | static elf_section_list * |
6112 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6113 | { | |
6114 | for (;list != NULL; list = list->next) | |
6115 | if (list->ndx == i) | |
6116 | break; | |
6117 | return list; | |
6118 | } | |
6119 | ||
252b5132 RH |
6120 | /* Work out the file positions of all the sections. This is called by |
6121 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6122 | VMAs must be known before this is called. | |
6123 | ||
e0638f70 AM |
6124 | Reloc sections come in two flavours: Those processed specially as |
6125 | "side-channel" data attached to a section to which they apply, and | |
6126 | those that bfd doesn't process as relocations. The latter sort are | |
6127 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
6128 | consider the former sort here, unless they form part of the loadable | |
6129 | image. Reloc sections not assigned here will be handled later by | |
6130 | assign_file_positions_for_relocs. | |
252b5132 RH |
6131 | |
6132 | We also don't set the positions of the .symtab and .strtab here. */ | |
6133 | ||
b34976b6 | 6134 | static bfd_boolean |
c84fca4d AO |
6135 | assign_file_positions_except_relocs (bfd *abfd, |
6136 | struct bfd_link_info *link_info) | |
252b5132 | 6137 | { |
5c182d5f AM |
6138 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6139 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6140 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6141 | |
6142 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6143 | && bfd_get_format (abfd) != bfd_core) | |
6144 | { | |
5c182d5f AM |
6145 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6146 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6147 | Elf_Internal_Shdr **hdrpp; |
6148 | unsigned int i; | |
a485e98e | 6149 | file_ptr off; |
252b5132 RH |
6150 | |
6151 | /* Start after the ELF header. */ | |
6152 | off = i_ehdrp->e_ehsize; | |
6153 | ||
6154 | /* We are not creating an executable, which means that we are | |
6155 | not creating a program header, and that the actual order of | |
6156 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6157 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6158 | { |
6159 | Elf_Internal_Shdr *hdr; | |
6160 | ||
6161 | hdr = *hdrpp; | |
e0638f70 AM |
6162 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6163 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
6164 | || (hdr->bfd_section != NULL |
6165 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
6166 | /* Compress DWARF debug sections. */ | |
12bd6957 | 6167 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6168 | || (elf_symtab_shndx_list (abfd) != NULL |
6169 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6170 | || i == elf_strtab_sec (abfd) |
6171 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6172 | { |
6173 | hdr->sh_offset = -1; | |
252b5132 | 6174 | } |
9ad5cbcf | 6175 | else |
b34976b6 | 6176 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6177 | } |
a485e98e AM |
6178 | |
6179 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6180 | } |
6181 | else | |
6182 | { | |
f3520d2f AM |
6183 | unsigned int alloc; |
6184 | ||
252b5132 | 6185 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6186 | assignment of sections to segments. */ |
f3520d2f AM |
6187 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6188 | return FALSE; | |
6189 | ||
6190 | /* And for non-load sections. */ | |
6191 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6192 | return FALSE; | |
6193 | ||
e36284ab AM |
6194 | if (bed->elf_backend_modify_program_headers != NULL) |
6195 | { | |
6196 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6197 | return FALSE; | |
6198 | } | |
6199 | ||
58e7ebac | 6200 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6201 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac L |
6202 | { |
6203 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
6204 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
6205 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6206 | ||
6207 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6208 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6209 | for (; segment < end_segment; segment++) | |
6210 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6211 | p_vaddr = segment->p_vaddr; | |
6212 | ||
6213 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6214 | segments is non-zero. */ | |
6215 | if (p_vaddr) | |
6216 | i_ehdrp->e_type = ET_EXEC; | |
6217 | } | |
6218 | ||
f3520d2f | 6219 | /* Write out the program headers. */ |
6838f2be | 6220 | alloc = elf_elfheader (abfd)->e_phnum; |
1a9ccd70 NC |
6221 | if (alloc == 0) |
6222 | return TRUE; | |
6223 | ||
1a9ccd70 NC |
6224 | /* PR ld/20815 - Check that the program header segment, if present, will |
6225 | be loaded into memory. FIXME: The check below is not sufficient as | |
6226 | really all PT_LOAD segments should be checked before issuing an error | |
6227 | message. Plus the PHDR segment does not have to be the first segment | |
6228 | in the program header table. But this version of the check should | |
cd584857 NC |
6229 | catch all real world use cases. |
6230 | ||
6231 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6232 | ascending order, as per the ELF spec. But this breaks some programs, | |
6233 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6234 | changed or the programs updated. */ |
1a9ccd70 | 6235 | if (alloc > 1 |
cd584857 | 6236 | && tdata->phdr[0].p_type == PT_PHDR |
d00dd7dc AM |
6237 | && (bed->elf_backend_allow_non_load_phdr == NULL |
6238 | || !bed->elf_backend_allow_non_load_phdr (abfd, tdata->phdr, | |
6239 | alloc)) | |
cd584857 NC |
6240 | && tdata->phdr[1].p_type == PT_LOAD |
6241 | && (tdata->phdr[1].p_vaddr > tdata->phdr[0].p_vaddr | |
6838f2be AM |
6242 | || (tdata->phdr[1].p_vaddr + tdata->phdr[1].p_memsz |
6243 | < tdata->phdr[0].p_vaddr + tdata->phdr[0].p_memsz))) | |
1a9ccd70 NC |
6244 | { |
6245 | /* The fix for this error is usually to edit the linker script being | |
6246 | used and set up the program headers manually. Either that or | |
6247 | leave room for the headers at the start of the SECTIONS. */ | |
6838f2be AM |
6248 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" |
6249 | " by LOAD segment"), | |
1a9ccd70 | 6250 | abfd); |
1a9ccd70 NC |
6251 | return FALSE; |
6252 | } | |
6253 | ||
f3520d2f | 6254 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
cd584857 NC |
6255 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6256 | return FALSE; | |
252b5132 RH |
6257 | } |
6258 | ||
b34976b6 | 6259 | return TRUE; |
252b5132 RH |
6260 | } |
6261 | ||
b34976b6 | 6262 | static bfd_boolean |
217aa764 | 6263 | prep_headers (bfd *abfd) |
252b5132 | 6264 | { |
3d540e93 | 6265 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6266 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6267 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6268 | |
6269 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6270 | |
2b0f7ef9 | 6271 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6272 | if (shstrtab == NULL) |
b34976b6 | 6273 | return FALSE; |
252b5132 RH |
6274 | |
6275 | elf_shstrtab (abfd) = shstrtab; | |
6276 | ||
6277 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6278 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6279 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6280 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6281 | ||
6282 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6283 | i_ehdrp->e_ident[EI_DATA] = | |
6284 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6285 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6286 | ||
252b5132 RH |
6287 | if ((abfd->flags & DYNAMIC) != 0) |
6288 | i_ehdrp->e_type = ET_DYN; | |
6289 | else if ((abfd->flags & EXEC_P) != 0) | |
6290 | i_ehdrp->e_type = ET_EXEC; | |
6291 | else if (bfd_get_format (abfd) == bfd_core) | |
6292 | i_ehdrp->e_type = ET_CORE; | |
6293 | else | |
6294 | i_ehdrp->e_type = ET_REL; | |
6295 | ||
6296 | switch (bfd_get_arch (abfd)) | |
6297 | { | |
6298 | case bfd_arch_unknown: | |
6299 | i_ehdrp->e_machine = EM_NONE; | |
6300 | break; | |
aa4f99bb AO |
6301 | |
6302 | /* There used to be a long list of cases here, each one setting | |
6303 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6304 | in the corresponding bfd definition. To avoid duplication, | |
6305 | the switch was removed. Machines that need special handling | |
6306 | can generally do it in elf_backend_final_write_processing(), | |
6307 | unless they need the information earlier than the final write. | |
6308 | Such need can generally be supplied by replacing the tests for | |
6309 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6310 | default: |
9c5bfbb7 AM |
6311 | i_ehdrp->e_machine = bed->elf_machine_code; |
6312 | } | |
aa4f99bb | 6313 | |
252b5132 RH |
6314 | i_ehdrp->e_version = bed->s->ev_current; |
6315 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6316 | ||
c044fabd | 6317 | /* No program header, for now. */ |
252b5132 RH |
6318 | i_ehdrp->e_phoff = 0; |
6319 | i_ehdrp->e_phentsize = 0; | |
6320 | i_ehdrp->e_phnum = 0; | |
6321 | ||
c044fabd | 6322 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6323 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6324 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6325 | ||
c044fabd | 6326 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6327 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6328 | /* It all happens later. */ |
6329 | ; | |
252b5132 RH |
6330 | else |
6331 | { | |
6332 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6333 | i_ehdrp->e_phoff = 0; |
6334 | } | |
6335 | ||
6336 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6337 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6338 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6339 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6340 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6341 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6342 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6343 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6344 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6345 | return FALSE; |
252b5132 | 6346 | |
b34976b6 | 6347 | return TRUE; |
252b5132 RH |
6348 | } |
6349 | ||
6350 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6351 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6352 | |
0ce398f1 L |
6353 | static bfd_boolean |
6354 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6355 | { |
6356 | file_ptr off; | |
e06efbf1 | 6357 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6358 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6359 | Elf_Internal_Ehdr *i_ehdrp; |
6360 | const struct elf_backend_data *bed; | |
252b5132 | 6361 | |
12bd6957 | 6362 | off = elf_next_file_pos (abfd); |
252b5132 | 6363 | |
e06efbf1 L |
6364 | shdrpp = elf_elfsections (abfd); |
6365 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6366 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6367 | { |
252b5132 | 6368 | shdrp = *shdrpp; |
0ce398f1 L |
6369 | if (shdrp->sh_offset == -1) |
6370 | { | |
3e19fb8f | 6371 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6372 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6373 | || shdrp->sh_type == SHT_RELA); | |
6374 | if (is_rel | |
3e19fb8f | 6375 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
6376 | { |
6377 | if (!is_rel) | |
6378 | { | |
3e19fb8f L |
6379 | const char *name = sec->name; |
6380 | struct bfd_elf_section_data *d; | |
6381 | ||
0ce398f1 | 6382 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6383 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6384 | shdrp->contents)) |
6385 | return FALSE; | |
3e19fb8f L |
6386 | |
6387 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6388 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6389 | { | |
6390 | /* If section is compressed with zlib-gnu, convert | |
6391 | section name from .debug_* to .zdebug_*. */ | |
6392 | char *new_name | |
6393 | = convert_debug_to_zdebug (abfd, name); | |
6394 | if (new_name == NULL) | |
6395 | return FALSE; | |
6396 | name = new_name; | |
6397 | } | |
dd905818 | 6398 | /* Add section name to section name section. */ |
3e19fb8f L |
6399 | if (shdrp->sh_name != (unsigned int) -1) |
6400 | abort (); | |
6401 | shdrp->sh_name | |
6402 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6403 | name, FALSE); | |
6404 | d = elf_section_data (sec); | |
6405 | ||
dd905818 | 6406 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6407 | if (d->rel.hdr |
6408 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6409 | d->rel.hdr, | |
6410 | name, FALSE)) | |
6411 | return FALSE; | |
6412 | if (d->rela.hdr | |
6413 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6414 | d->rela.hdr, | |
91cb26da | 6415 | name, TRUE)) |
3e19fb8f L |
6416 | return FALSE; |
6417 | ||
0ce398f1 | 6418 | /* Update section size and contents. */ |
3e19fb8f L |
6419 | shdrp->sh_size = sec->size; |
6420 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6421 | shdrp->bfd_section->contents = NULL; |
6422 | } | |
6423 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
6424 | off, | |
6425 | TRUE); | |
6426 | } | |
6427 | } | |
252b5132 RH |
6428 | } |
6429 | ||
3e19fb8f L |
6430 | /* Place section name section after DWARF debug sections have been |
6431 | compressed. */ | |
6432 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6433 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6434 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6435 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6436 | ||
6437 | /* Place the section headers. */ | |
a485e98e AM |
6438 | i_ehdrp = elf_elfheader (abfd); |
6439 | bed = get_elf_backend_data (abfd); | |
6440 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6441 | i_ehdrp->e_shoff = off; | |
6442 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6443 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6444 | |
6445 | return TRUE; | |
252b5132 RH |
6446 | } |
6447 | ||
b34976b6 | 6448 | bfd_boolean |
217aa764 | 6449 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6450 | { |
9c5bfbb7 | 6451 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6452 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6453 | bfd_boolean failed; |
9ad5cbcf | 6454 | unsigned int count, num_sec; |
30e8ee25 | 6455 | struct elf_obj_tdata *t; |
252b5132 RH |
6456 | |
6457 | if (! abfd->output_has_begun | |
217aa764 | 6458 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6459 | return FALSE; |
db727370 JL |
6460 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6461 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6462 | sections, and modification of existing section sizes was restricted. | |
6463 | This means the ELF header, program headers and section headers can't have | |
6464 | changed. | |
6465 | If the contents of any sections has been modified, then those changes have | |
6466 | already been written to the BFD. */ | |
6467 | else if (abfd->direction == both_direction) | |
6468 | { | |
6469 | BFD_ASSERT (abfd->output_has_begun); | |
6470 | return TRUE; | |
6471 | } | |
252b5132 RH |
6472 | |
6473 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6474 | |
b34976b6 | 6475 | failed = FALSE; |
252b5132 RH |
6476 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6477 | if (failed) | |
b34976b6 | 6478 | return FALSE; |
252b5132 | 6479 | |
0ce398f1 L |
6480 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6481 | return FALSE; | |
252b5132 | 6482 | |
c044fabd | 6483 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6484 | num_sec = elf_numsections (abfd); |
6485 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6486 | { |
3e19fb8f L |
6487 | i_shdrp[count]->sh_name |
6488 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6489 | i_shdrp[count]->sh_name); | |
252b5132 | 6490 | if (bed->elf_backend_section_processing) |
75506100 MR |
6491 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6492 | return FALSE; | |
252b5132 RH |
6493 | if (i_shdrp[count]->contents) |
6494 | { | |
dc810e39 AM |
6495 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6496 | ||
252b5132 | 6497 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6498 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6499 | return FALSE; |
252b5132 RH |
6500 | } |
6501 | } | |
6502 | ||
6503 | /* Write out the section header names. */ | |
30e8ee25 | 6504 | t = elf_tdata (abfd); |
26ae6d5e | 6505 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6506 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6507 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6508 | return FALSE; |
252b5132 RH |
6509 | |
6510 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 6511 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 6512 | |
ff59fc36 RM |
6513 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6514 | return FALSE; | |
6515 | ||
6516 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6517 | if (t->o->build_id.after_write_object_contents != NULL) |
6518 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6519 | |
6520 | return TRUE; | |
252b5132 RH |
6521 | } |
6522 | ||
b34976b6 | 6523 | bfd_boolean |
217aa764 | 6524 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6525 | { |
c044fabd | 6526 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6527 | return _bfd_elf_write_object_contents (abfd); |
6528 | } | |
c044fabd KH |
6529 | |
6530 | /* Given a section, search the header to find them. */ | |
6531 | ||
cb33740c | 6532 | unsigned int |
198beae2 | 6533 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6534 | { |
9c5bfbb7 | 6535 | const struct elf_backend_data *bed; |
91d6fa6a | 6536 | unsigned int sec_index; |
252b5132 | 6537 | |
9ad5cbcf AM |
6538 | if (elf_section_data (asect) != NULL |
6539 | && elf_section_data (asect)->this_idx != 0) | |
6540 | return elf_section_data (asect)->this_idx; | |
6541 | ||
6542 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6543 | sec_index = SHN_ABS; |
af746e92 | 6544 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6545 | sec_index = SHN_COMMON; |
af746e92 | 6546 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6547 | sec_index = SHN_UNDEF; |
af746e92 | 6548 | else |
91d6fa6a | 6549 | sec_index = SHN_BAD; |
252b5132 | 6550 | |
af746e92 | 6551 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6552 | if (bed->elf_backend_section_from_bfd_section) |
6553 | { | |
91d6fa6a | 6554 | int retval = sec_index; |
9ad5cbcf | 6555 | |
af746e92 AM |
6556 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6557 | return retval; | |
252b5132 RH |
6558 | } |
6559 | ||
91d6fa6a | 6560 | if (sec_index == SHN_BAD) |
af746e92 | 6561 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6562 | |
91d6fa6a | 6563 | return sec_index; |
252b5132 RH |
6564 | } |
6565 | ||
6566 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6567 | on error. */ | |
6568 | ||
6569 | int | |
217aa764 | 6570 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6571 | { |
6572 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6573 | int idx; | |
6574 | flagword flags = asym_ptr->flags; | |
6575 | ||
6576 | /* When gas creates relocations against local labels, it creates its | |
6577 | own symbol for the section, but does put the symbol into the | |
6578 | symbol chain, so udata is 0. When the linker is generating | |
6579 | relocatable output, this section symbol may be for one of the | |
6580 | input sections rather than the output section. */ | |
6581 | if (asym_ptr->udata.i == 0 | |
6582 | && (flags & BSF_SECTION_SYM) | |
6583 | && asym_ptr->section) | |
6584 | { | |
5372391b | 6585 | asection *sec; |
252b5132 RH |
6586 | int indx; |
6587 | ||
5372391b AM |
6588 | sec = asym_ptr->section; |
6589 | if (sec->owner != abfd && sec->output_section != NULL) | |
6590 | sec = sec->output_section; | |
6591 | if (sec->owner == abfd | |
6592 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6593 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6594 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6595 | } | |
6596 | ||
6597 | idx = asym_ptr->udata.i; | |
6598 | ||
6599 | if (idx == 0) | |
6600 | { | |
6601 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6602 | which is used in a relocation entry. */ |
4eca0228 | 6603 | _bfd_error_handler |
695344c0 | 6604 | /* xgettext:c-format */ |
871b3ab2 | 6605 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6606 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6607 | bfd_set_error (bfd_error_no_symbols); |
6608 | return -1; | |
6609 | } | |
6610 | ||
6611 | #if DEBUG & 4 | |
6612 | { | |
6613 | fprintf (stderr, | |
cd9af601 AM |
6614 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6615 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6616 | fflush (stderr); |
6617 | } | |
6618 | #endif | |
6619 | ||
6620 | return idx; | |
6621 | } | |
6622 | ||
84d1d650 | 6623 | /* Rewrite program header information. */ |
252b5132 | 6624 | |
b34976b6 | 6625 | static bfd_boolean |
84d1d650 | 6626 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6627 | { |
b34976b6 AM |
6628 | Elf_Internal_Ehdr *iehdr; |
6629 | struct elf_segment_map *map; | |
6630 | struct elf_segment_map *map_first; | |
6631 | struct elf_segment_map **pointer_to_map; | |
6632 | Elf_Internal_Phdr *segment; | |
6633 | asection *section; | |
6634 | unsigned int i; | |
6635 | unsigned int num_segments; | |
6636 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6637 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6638 | bfd_vma maxpagesize; |
6639 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6640 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6641 | const struct elf_backend_data *bed; |
bc67d8a6 | 6642 | |
caf47ea6 | 6643 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6644 | iehdr = elf_elfheader (ibfd); |
6645 | ||
bc67d8a6 | 6646 | map_first = NULL; |
c044fabd | 6647 | pointer_to_map = &map_first; |
252b5132 RH |
6648 | |
6649 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6650 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6651 | ||
6652 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6653 | #define SEGMENT_END(segment, start) \ |
6654 | (start + (segment->p_memsz > segment->p_filesz \ | |
6655 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6656 | |
eecdbe52 JJ |
6657 | #define SECTION_SIZE(section, segment) \ |
6658 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6659 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6660 | ? section->size : 0) |
eecdbe52 | 6661 | |
b34976b6 | 6662 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6663 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6664 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6665 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6666 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6667 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6668 | |
b34976b6 | 6669 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6670 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6671 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6672 | (section->lma >= base \ | |
beab4532 | 6673 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6674 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6675 | <= SEGMENT_END (segment, base))) |
252b5132 | 6676 | |
0efc80c8 L |
6677 | /* Handle PT_NOTE segment. */ |
6678 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6679 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6680 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6681 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6682 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6683 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6684 | |
0efc80c8 L |
6685 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6686 | etc. */ | |
6687 | #define IS_COREFILE_NOTE(p, s) \ | |
6688 | (IS_NOTE (p, s) \ | |
6689 | && bfd_get_format (ibfd) == bfd_core \ | |
6690 | && s->vma == 0 \ | |
6691 | && s->lma == 0) | |
6692 | ||
252b5132 RH |
6693 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6694 | linker, which generates a PT_INTERP section with p_vaddr and | |
6695 | p_memsz set to 0. */ | |
aecc8f8a AM |
6696 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6697 | (p->p_vaddr == 0 \ | |
6698 | && p->p_paddr == 0 \ | |
6699 | && p->p_memsz == 0 \ | |
6700 | && p->p_filesz > 0 \ | |
6701 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6702 | && s->size > 0 \ |
aecc8f8a | 6703 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6704 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6705 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6706 | |
bc67d8a6 NC |
6707 | /* Decide if the given section should be included in the given segment. |
6708 | A section will be included if: | |
f5ffc919 | 6709 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6710 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6711 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6712 | segment. |
bc67d8a6 | 6713 | 3. There is an output section associated with it, |
eecdbe52 | 6714 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6715 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6716 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6717 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6718 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6719 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6720 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6721 | ((((segment->p_paddr \ |
6722 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6723 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6724 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6725 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6726 | && segment->p_type != PT_GNU_STACK \ |
6727 | && (segment->p_type != PT_TLS \ | |
6728 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6729 | && (segment->p_type == PT_LOAD \ | |
6730 | || segment->p_type == PT_TLS \ | |
6731 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6732 | && (segment->p_type != PT_DYNAMIC \ | |
6733 | || SECTION_SIZE (section, segment) > 0 \ | |
6734 | || (segment->p_paddr \ | |
6735 | ? segment->p_paddr != section->lma \ | |
6736 | : segment->p_vaddr != section->vma) \ | |
6737 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6738 | == 0)) \ | |
9933dc52 | 6739 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6740 | |
9f17e2a6 L |
6741 | /* If the output section of a section in the input segment is NULL, |
6742 | it is removed from the corresponding output segment. */ | |
6743 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6744 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6745 | && section->output_section != NULL) | |
6746 | ||
b34976b6 | 6747 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6748 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6749 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6750 | ||
6751 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6752 | their VMA address ranges and their LMA address ranges overlap. | |
6753 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6754 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6755 | to the same VMA range, but with the .data section mapped to a different | |
6756 | LMA. */ | |
aecc8f8a | 6757 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6758 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6759 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6760 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6761 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6762 | |
6763 | /* Initialise the segment mark field. */ | |
6764 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6765 | section->segment_mark = FALSE; |
bc67d8a6 | 6766 | |
5c44b38e AM |
6767 | /* The Solaris linker creates program headers in which all the |
6768 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6769 | file, we get confused. Check for this case, and if we find it | |
6770 | don't set the p_paddr_valid fields. */ | |
6771 | p_paddr_valid = FALSE; | |
6772 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6773 | i < num_segments; | |
6774 | i++, segment++) | |
6775 | if (segment->p_paddr != 0) | |
6776 | { | |
6777 | p_paddr_valid = TRUE; | |
6778 | break; | |
6779 | } | |
6780 | ||
252b5132 | 6781 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6782 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6783 | in the loadable segments. These can be created by weird |
aecc8f8a | 6784 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6785 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6786 | i < num_segments; | |
c044fabd | 6787 | i++, segment++) |
252b5132 | 6788 | { |
252b5132 | 6789 | unsigned int j; |
c044fabd | 6790 | Elf_Internal_Phdr *segment2; |
252b5132 | 6791 | |
aecc8f8a AM |
6792 | if (segment->p_type == PT_INTERP) |
6793 | for (section = ibfd->sections; section; section = section->next) | |
6794 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6795 | { | |
6796 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6797 | assignment code will work. */ |
aecc8f8a AM |
6798 | segment->p_vaddr = section->vma; |
6799 | break; | |
6800 | } | |
6801 | ||
bc67d8a6 | 6802 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6803 | { |
6804 | /* Remove PT_GNU_RELRO segment. */ | |
6805 | if (segment->p_type == PT_GNU_RELRO) | |
6806 | segment->p_type = PT_NULL; | |
6807 | continue; | |
6808 | } | |
c044fabd | 6809 | |
bc67d8a6 | 6810 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6811 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6812 | { |
6813 | bfd_signed_vma extra_length; | |
c044fabd | 6814 | |
bc67d8a6 | 6815 | if (segment2->p_type != PT_LOAD |
0067a569 | 6816 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6817 | continue; |
c044fabd | 6818 | |
bc67d8a6 NC |
6819 | /* Merge the two segments together. */ |
6820 | if (segment2->p_vaddr < segment->p_vaddr) | |
6821 | { | |
c044fabd | 6822 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6823 | SEGMENT. */ |
0067a569 AM |
6824 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6825 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6826 | |
bc67d8a6 NC |
6827 | if (extra_length > 0) |
6828 | { | |
0067a569 | 6829 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6830 | segment2->p_filesz += extra_length; |
6831 | } | |
c044fabd | 6832 | |
bc67d8a6 | 6833 | segment->p_type = PT_NULL; |
c044fabd | 6834 | |
bc67d8a6 NC |
6835 | /* Since we have deleted P we must restart the outer loop. */ |
6836 | i = 0; | |
6837 | segment = elf_tdata (ibfd)->phdr; | |
6838 | break; | |
6839 | } | |
6840 | else | |
6841 | { | |
c044fabd | 6842 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6843 | SEGMENT2. */ |
0067a569 AM |
6844 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6845 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6846 | |
bc67d8a6 NC |
6847 | if (extra_length > 0) |
6848 | { | |
0067a569 | 6849 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6850 | segment->p_filesz += extra_length; |
6851 | } | |
c044fabd | 6852 | |
bc67d8a6 NC |
6853 | segment2->p_type = PT_NULL; |
6854 | } | |
6855 | } | |
6856 | } | |
c044fabd | 6857 | |
bc67d8a6 NC |
6858 | /* The second scan attempts to assign sections to segments. */ |
6859 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6860 | i < num_segments; | |
0067a569 | 6861 | i++, segment++) |
bc67d8a6 | 6862 | { |
0067a569 AM |
6863 | unsigned int section_count; |
6864 | asection **sections; | |
6865 | asection *output_section; | |
6866 | unsigned int isec; | |
9933dc52 AM |
6867 | asection *matching_lma; |
6868 | asection *suggested_lma; | |
0067a569 | 6869 | unsigned int j; |
dc810e39 | 6870 | bfd_size_type amt; |
0067a569 | 6871 | asection *first_section; |
bc67d8a6 NC |
6872 | |
6873 | if (segment->p_type == PT_NULL) | |
6874 | continue; | |
c044fabd | 6875 | |
9f17e2a6 | 6876 | first_section = NULL; |
bc67d8a6 | 6877 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6878 | for (section = ibfd->sections, section_count = 0; |
6879 | section != NULL; | |
6880 | section = section->next) | |
9f17e2a6 L |
6881 | { |
6882 | /* Find the first section in the input segment, which may be | |
6883 | removed from the corresponding output segment. */ | |
6884 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6885 | { | |
6886 | if (first_section == NULL) | |
6887 | first_section = section; | |
6888 | if (section->output_section != NULL) | |
6889 | ++section_count; | |
6890 | } | |
6891 | } | |
811072d8 | 6892 | |
b5f852ea NC |
6893 | /* Allocate a segment map big enough to contain |
6894 | all of the sections we have selected. */ | |
00bee008 AM |
6895 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
6896 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 6897 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6898 | if (map == NULL) |
b34976b6 | 6899 | return FALSE; |
252b5132 RH |
6900 | |
6901 | /* Initialise the fields of the segment map. Default to | |
6902 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
6903 | map->next = NULL; |
6904 | map->p_type = segment->p_type; | |
6905 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 6906 | map->p_flags_valid = 1; |
55d55ac7 | 6907 | |
9f17e2a6 L |
6908 | /* If the first section in the input segment is removed, there is |
6909 | no need to preserve segment physical address in the corresponding | |
6910 | output segment. */ | |
945c025a | 6911 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
6912 | { |
6913 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 6914 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 6915 | } |
252b5132 RH |
6916 | |
6917 | /* Determine if this segment contains the ELF file header | |
6918 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
6919 | map->includes_filehdr = (segment->p_offset == 0 |
6920 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 6921 | map->includes_phdrs = 0; |
252b5132 | 6922 | |
0067a569 | 6923 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 6924 | { |
bc67d8a6 NC |
6925 | map->includes_phdrs = |
6926 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6927 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
6928 | >= ((bfd_vma) iehdr->e_phoff |
6929 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 6930 | |
bc67d8a6 | 6931 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 6932 | phdr_included = TRUE; |
252b5132 RH |
6933 | } |
6934 | ||
bc67d8a6 | 6935 | if (section_count == 0) |
252b5132 RH |
6936 | { |
6937 | /* Special segments, such as the PT_PHDR segment, may contain | |
6938 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 6939 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 6940 | a warning is produced. |
f98450c6 NC |
6941 | There is however the valid use case of embedded systems which |
6942 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
6943 | flash memory with zeros. No warning is shown for that case. */ | |
6944 | if (segment->p_type == PT_LOAD | |
6945 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
6946 | /* xgettext:c-format */ | |
9793eb77 AM |
6947 | _bfd_error_handler |
6948 | (_("%pB: warning: empty loadable segment detected" | |
6949 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
6950 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 6951 | |
5d695627 | 6952 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 6953 | map->count = 0; |
c044fabd KH |
6954 | *pointer_to_map = map; |
6955 | pointer_to_map = &map->next; | |
252b5132 RH |
6956 | |
6957 | continue; | |
6958 | } | |
6959 | ||
6960 | /* Now scan the sections in the input BFD again and attempt | |
6961 | to add their corresponding output sections to the segment map. | |
6962 | The problem here is how to handle an output section which has | |
6963 | been moved (ie had its LMA changed). There are four possibilities: | |
6964 | ||
6965 | 1. None of the sections have been moved. | |
6966 | In this case we can continue to use the segment LMA from the | |
6967 | input BFD. | |
6968 | ||
6969 | 2. All of the sections have been moved by the same amount. | |
6970 | In this case we can change the segment's LMA to match the LMA | |
6971 | of the first section. | |
6972 | ||
6973 | 3. Some of the sections have been moved, others have not. | |
6974 | In this case those sections which have not been moved can be | |
6975 | placed in the current segment which will have to have its size, | |
6976 | and possibly its LMA changed, and a new segment or segments will | |
6977 | have to be created to contain the other sections. | |
6978 | ||
b5f852ea | 6979 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
6980 | In this case we can change the segment's LMA to match the LMA |
6981 | of the first section and we will have to create a new segment | |
6982 | or segments to contain the other sections. | |
6983 | ||
6984 | In order to save time, we allocate an array to hold the section | |
6985 | pointers that we are interested in. As these sections get assigned | |
6986 | to a segment, they are removed from this array. */ | |
6987 | ||
a50b1753 | 6988 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 6989 | if (sections == NULL) |
b34976b6 | 6990 | return FALSE; |
252b5132 RH |
6991 | |
6992 | /* Step One: Scan for segment vs section LMA conflicts. | |
6993 | Also add the sections to the section array allocated above. | |
6994 | Also add the sections to the current segment. In the common | |
6995 | case, where the sections have not been moved, this means that | |
6996 | we have completely filled the segment, and there is nothing | |
6997 | more to do. */ | |
252b5132 | 6998 | isec = 0; |
9933dc52 AM |
6999 | matching_lma = NULL; |
7000 | suggested_lma = NULL; | |
252b5132 | 7001 | |
461c4b2e | 7002 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7003 | section != NULL; |
7004 | section = section->next) | |
252b5132 | 7005 | { |
caf47ea6 | 7006 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7007 | { |
bc67d8a6 NC |
7008 | output_section = section->output_section; |
7009 | ||
0067a569 | 7010 | sections[j++] = section; |
252b5132 RH |
7011 | |
7012 | /* The Solaris native linker always sets p_paddr to 0. | |
7013 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7014 | correct value. Note - some backends require that |
7015 | p_paddr be left as zero. */ | |
5c44b38e | 7016 | if (!p_paddr_valid |
4455705d | 7017 | && segment->p_vaddr != 0 |
0067a569 | 7018 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7019 | && isec == 0 |
bc67d8a6 | 7020 | && output_section->lma != 0 |
9933dc52 AM |
7021 | && (align_power (segment->p_vaddr |
7022 | + (map->includes_filehdr | |
7023 | ? iehdr->e_ehsize : 0) | |
7024 | + (map->includes_phdrs | |
7025 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7026 | : 0), | |
7027 | output_section->alignment_power) | |
7028 | == output_section->vma)) | |
bc67d8a6 | 7029 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7030 | |
7031 | /* Match up the physical address of the segment with the | |
7032 | LMA address of the output section. */ | |
bc67d8a6 | 7033 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7034 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7035 | || (bed->want_p_paddr_set_to_zero |
7036 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7037 | { |
9933dc52 AM |
7038 | if (matching_lma == NULL |
7039 | || output_section->lma < matching_lma->lma) | |
7040 | matching_lma = output_section; | |
252b5132 RH |
7041 | |
7042 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7043 | then it does not overlap any other section within that |
252b5132 | 7044 | segment. */ |
0067a569 AM |
7045 | map->sections[isec++] = output_section; |
7046 | } | |
9933dc52 AM |
7047 | else if (suggested_lma == NULL) |
7048 | suggested_lma = output_section; | |
147d51c2 L |
7049 | |
7050 | if (j == section_count) | |
7051 | break; | |
252b5132 RH |
7052 | } |
7053 | } | |
7054 | ||
bc67d8a6 | 7055 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7056 | |
7057 | /* Step Two: Adjust the physical address of the current segment, | |
7058 | if necessary. */ | |
bc67d8a6 | 7059 | if (isec == section_count) |
252b5132 RH |
7060 | { |
7061 | /* All of the sections fitted within the segment as currently | |
7062 | specified. This is the default case. Add the segment to | |
7063 | the list of built segments and carry on to process the next | |
7064 | program header in the input BFD. */ | |
bc67d8a6 | 7065 | map->count = section_count; |
c044fabd KH |
7066 | *pointer_to_map = map; |
7067 | pointer_to_map = &map->next; | |
08a40648 | 7068 | |
5c44b38e AM |
7069 | if (p_paddr_valid |
7070 | && !bed->want_p_paddr_set_to_zero | |
9933dc52 | 7071 | && matching_lma->lma != map->p_paddr |
5c44b38e AM |
7072 | && !map->includes_filehdr |
7073 | && !map->includes_phdrs) | |
3271a814 NS |
7074 | /* There is some padding before the first section in the |
7075 | segment. So, we must account for that in the output | |
7076 | segment's vma. */ | |
5d695627 | 7077 | map->p_vaddr_offset = map->p_paddr - matching_lma->lma; |
08a40648 | 7078 | |
252b5132 RH |
7079 | free (sections); |
7080 | continue; | |
7081 | } | |
252b5132 RH |
7082 | else |
7083 | { | |
9933dc52 AM |
7084 | /* Change the current segment's physical address to match |
7085 | the LMA of the first section that fitted, or if no | |
7086 | section fitted, the first section. */ | |
7087 | if (matching_lma == NULL) | |
7088 | matching_lma = suggested_lma; | |
7089 | ||
7090 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7091 | |
bc67d8a6 NC |
7092 | /* Offset the segment physical address from the lma |
7093 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7094 | if (map->includes_phdrs) |
010c8431 | 7095 | { |
9933dc52 AM |
7096 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7097 | ||
7098 | /* iehdr->e_phnum is just an estimate of the number | |
7099 | of program headers that we will need. Make a note | |
7100 | here of the number we used and the segment we chose | |
7101 | to hold these headers, so that we can adjust the | |
7102 | offset when we know the correct value. */ | |
7103 | phdr_adjust_num = iehdr->e_phnum; | |
7104 | phdr_adjust_seg = map; | |
010c8431 | 7105 | } |
252b5132 | 7106 | |
9933dc52 | 7107 | if (map->includes_filehdr) |
bc67d8a6 | 7108 | { |
9933dc52 AM |
7109 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7110 | map->p_paddr -= iehdr->e_ehsize; | |
7111 | /* We've subtracted off the size of headers from the | |
7112 | first section lma, but there may have been some | |
7113 | alignment padding before that section too. Try to | |
7114 | account for that by adjusting the segment lma down to | |
7115 | the same alignment. */ | |
7116 | if (segment->p_align != 0 && segment->p_align < align) | |
7117 | align = segment->p_align; | |
7118 | map->p_paddr &= -align; | |
bc67d8a6 | 7119 | } |
252b5132 RH |
7120 | } |
7121 | ||
7122 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7123 | those that fit to the current segment and removing them from the |
252b5132 RH |
7124 | sections array; but making sure not to leave large gaps. Once all |
7125 | possible sections have been assigned to the current segment it is | |
7126 | added to the list of built segments and if sections still remain | |
7127 | to be assigned, a new segment is constructed before repeating | |
7128 | the loop. */ | |
7129 | isec = 0; | |
7130 | do | |
7131 | { | |
bc67d8a6 | 7132 | map->count = 0; |
9933dc52 | 7133 | suggested_lma = NULL; |
252b5132 RH |
7134 | |
7135 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7136 | for (j = 0; j < section_count; j++) |
252b5132 | 7137 | { |
bc67d8a6 | 7138 | section = sections[j]; |
252b5132 | 7139 | |
bc67d8a6 | 7140 | if (section == NULL) |
252b5132 RH |
7141 | continue; |
7142 | ||
bc67d8a6 | 7143 | output_section = section->output_section; |
252b5132 | 7144 | |
bc67d8a6 | 7145 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7146 | |
bc67d8a6 NC |
7147 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7148 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7149 | { |
bc67d8a6 | 7150 | if (map->count == 0) |
252b5132 RH |
7151 | { |
7152 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7153 | the beginning of the segment, then something is |
7154 | wrong. */ | |
9933dc52 AM |
7155 | if (align_power (map->p_paddr |
7156 | + (map->includes_filehdr | |
7157 | ? iehdr->e_ehsize : 0) | |
7158 | + (map->includes_phdrs | |
7159 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7160 | : 0), | |
7161 | output_section->alignment_power) | |
7162 | != output_section->lma) | |
252b5132 RH |
7163 | abort (); |
7164 | } | |
7165 | else | |
7166 | { | |
0067a569 | 7167 | asection *prev_sec; |
252b5132 | 7168 | |
bc67d8a6 | 7169 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7170 | |
7171 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7172 | and the start of this section is more than |
7173 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7174 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7175 | maxpagesize) |
caf47ea6 | 7176 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7177 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7178 | > output_section->lma)) |
252b5132 | 7179 | { |
9933dc52 AM |
7180 | if (suggested_lma == NULL) |
7181 | suggested_lma = output_section; | |
252b5132 RH |
7182 | |
7183 | continue; | |
7184 | } | |
7185 | } | |
7186 | ||
bc67d8a6 | 7187 | map->sections[map->count++] = output_section; |
252b5132 RH |
7188 | ++isec; |
7189 | sections[j] = NULL; | |
9933dc52 AM |
7190 | if (segment->p_type == PT_LOAD) |
7191 | section->segment_mark = TRUE; | |
0067a569 | 7192 | } |
9933dc52 AM |
7193 | else if (suggested_lma == NULL) |
7194 | suggested_lma = output_section; | |
252b5132 RH |
7195 | } |
7196 | ||
beab4532 NC |
7197 | /* PR 23932. A corrupt input file may contain sections that cannot |
7198 | be assigned to any segment - because for example they have a | |
7199 | negative size - or segments that do not contain any sections. */ | |
7200 | if (map->count == 0) | |
7201 | { | |
7202 | bfd_set_error (bfd_error_bad_value); | |
7203 | free (sections); | |
7204 | return FALSE; | |
7205 | } | |
252b5132 RH |
7206 | |
7207 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7208 | *pointer_to_map = map; |
7209 | pointer_to_map = &map->next; | |
252b5132 | 7210 | |
bc67d8a6 | 7211 | if (isec < section_count) |
252b5132 RH |
7212 | { |
7213 | /* We still have not allocated all of the sections to | |
7214 | segments. Create a new segment here, initialise it | |
7215 | and carry on looping. */ | |
00bee008 AM |
7216 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7217 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
5964fc3a | 7218 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7219 | if (map == NULL) |
5ed6aba4 NC |
7220 | { |
7221 | free (sections); | |
7222 | return FALSE; | |
7223 | } | |
252b5132 RH |
7224 | |
7225 | /* Initialise the fields of the segment map. Set the physical | |
7226 | physical address to the LMA of the first section that has | |
7227 | not yet been assigned. */ | |
0067a569 AM |
7228 | map->next = NULL; |
7229 | map->p_type = segment->p_type; | |
7230 | map->p_flags = segment->p_flags; | |
7231 | map->p_flags_valid = 1; | |
9933dc52 | 7232 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7233 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7234 | map->includes_filehdr = 0; |
0067a569 | 7235 | map->includes_phdrs = 0; |
252b5132 RH |
7236 | } |
7237 | } | |
bc67d8a6 | 7238 | while (isec < section_count); |
252b5132 RH |
7239 | |
7240 | free (sections); | |
7241 | } | |
7242 | ||
12bd6957 | 7243 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7244 | |
7245 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7246 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7247 | the offset if necessary. */ |
7248 | if (phdr_adjust_seg != NULL) | |
7249 | { | |
7250 | unsigned int count; | |
c044fabd | 7251 | |
bc67d8a6 | 7252 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7253 | count++; |
252b5132 | 7254 | |
bc67d8a6 NC |
7255 | if (count > phdr_adjust_num) |
7256 | phdr_adjust_seg->p_paddr | |
7257 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7258 | |
7259 | for (map = map_first; map != NULL; map = map->next) | |
7260 | if (map->p_type == PT_PHDR) | |
7261 | { | |
7262 | bfd_vma adjust | |
7263 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7264 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7265 | break; | |
7266 | } | |
bc67d8a6 | 7267 | } |
c044fabd | 7268 | |
bc67d8a6 | 7269 | #undef SEGMENT_END |
eecdbe52 | 7270 | #undef SECTION_SIZE |
bc67d8a6 NC |
7271 | #undef IS_CONTAINED_BY_VMA |
7272 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7273 | #undef IS_NOTE |
252b5132 | 7274 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7275 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7276 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7277 | #undef INCLUDE_SECTION_IN_SEGMENT |
7278 | #undef SEGMENT_AFTER_SEGMENT | |
7279 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7280 | return TRUE; |
252b5132 RH |
7281 | } |
7282 | ||
84d1d650 L |
7283 | /* Copy ELF program header information. */ |
7284 | ||
7285 | static bfd_boolean | |
7286 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7287 | { | |
7288 | Elf_Internal_Ehdr *iehdr; | |
7289 | struct elf_segment_map *map; | |
7290 | struct elf_segment_map *map_first; | |
7291 | struct elf_segment_map **pointer_to_map; | |
7292 | Elf_Internal_Phdr *segment; | |
7293 | unsigned int i; | |
7294 | unsigned int num_segments; | |
7295 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7296 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7297 | |
7298 | iehdr = elf_elfheader (ibfd); | |
7299 | ||
7300 | map_first = NULL; | |
7301 | pointer_to_map = &map_first; | |
7302 | ||
88967714 AM |
7303 | /* If all the segment p_paddr fields are zero, don't set |
7304 | map->p_paddr_valid. */ | |
7305 | p_paddr_valid = FALSE; | |
84d1d650 | 7306 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7307 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7308 | i < num_segments; | |
7309 | i++, segment++) | |
7310 | if (segment->p_paddr != 0) | |
7311 | { | |
7312 | p_paddr_valid = TRUE; | |
7313 | break; | |
7314 | } | |
7315 | ||
84d1d650 L |
7316 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7317 | i < num_segments; | |
7318 | i++, segment++) | |
7319 | { | |
7320 | asection *section; | |
7321 | unsigned int section_count; | |
7322 | bfd_size_type amt; | |
7323 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7324 | asection *first_section = NULL; |
a76e6f2f | 7325 | asection *lowest_section; |
2542e49e | 7326 | bfd_boolean no_contents = TRUE; |
84d1d650 | 7327 | |
84d1d650 L |
7328 | /* Compute how many sections are in this segment. */ |
7329 | for (section = ibfd->sections, section_count = 0; | |
7330 | section != NULL; | |
7331 | section = section->next) | |
7332 | { | |
7333 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7334 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7335 | { |
a76e6f2f AM |
7336 | if (first_section == NULL) |
7337 | first_section = section; | |
2542e49e JL |
7338 | if (elf_section_type (section) != SHT_NOBITS) |
7339 | no_contents = FALSE; | |
3271a814 NS |
7340 | section_count++; |
7341 | } | |
84d1d650 L |
7342 | } |
7343 | ||
7344 | /* Allocate a segment map big enough to contain | |
7345 | all of the sections we have selected. */ | |
00bee008 AM |
7346 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7347 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7348 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7349 | if (map == NULL) |
7350 | return FALSE; | |
7351 | ||
7352 | /* Initialize the fields of the output segment map with the | |
7353 | input segment. */ | |
7354 | map->next = NULL; | |
7355 | map->p_type = segment->p_type; | |
7356 | map->p_flags = segment->p_flags; | |
7357 | map->p_flags_valid = 1; | |
7358 | map->p_paddr = segment->p_paddr; | |
88967714 | 7359 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7360 | map->p_align = segment->p_align; |
7361 | map->p_align_valid = 1; | |
3271a814 | 7362 | map->p_vaddr_offset = 0; |
84d1d650 | 7363 | |
04c3a755 NS |
7364 | if (map->p_type == PT_GNU_RELRO |
7365 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7366 | { |
7367 | /* The PT_GNU_RELRO segment may contain the first a few | |
7368 | bytes in the .got.plt section even if the whole .got.plt | |
7369 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7370 | change the size of the PT_GNU_RELRO segment. |
7371 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7372 | systems. */ | |
9433b9b1 | 7373 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7374 | map->p_size_valid = 1; |
7375 | } | |
7376 | ||
84d1d650 L |
7377 | /* Determine if this segment contains the ELF file header |
7378 | and if it contains the program headers themselves. */ | |
7379 | map->includes_filehdr = (segment->p_offset == 0 | |
7380 | && segment->p_filesz >= iehdr->e_ehsize); | |
7381 | ||
7382 | map->includes_phdrs = 0; | |
7383 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7384 | { | |
7385 | map->includes_phdrs = | |
7386 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7387 | && (segment->p_offset + segment->p_filesz | |
7388 | >= ((bfd_vma) iehdr->e_phoff | |
7389 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7390 | ||
7391 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7392 | phdr_included = TRUE; | |
7393 | } | |
7394 | ||
bbefd0a9 | 7395 | lowest_section = NULL; |
84d1d650 L |
7396 | if (section_count != 0) |
7397 | { | |
7398 | unsigned int isec = 0; | |
7399 | ||
53020534 | 7400 | for (section = first_section; |
84d1d650 L |
7401 | section != NULL; |
7402 | section = section->next) | |
7403 | { | |
7404 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7405 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7406 | { |
7407 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7408 | if ((section->flags & SEC_ALLOC) != 0) |
7409 | { | |
7410 | bfd_vma seg_off; | |
7411 | ||
bbefd0a9 AM |
7412 | if (lowest_section == NULL |
7413 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7414 | lowest_section = section; |
7415 | ||
a76e6f2f AM |
7416 | /* Section lmas are set up from PT_LOAD header |
7417 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7418 | If this header has a p_paddr that disagrees | |
7419 | with the section lma, flag the p_paddr as | |
7420 | invalid. */ | |
7421 | if ((section->flags & SEC_LOAD) != 0) | |
7422 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7423 | else | |
7424 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7425 | if (section->lma - segment->p_paddr != seg_off) | |
7426 | map->p_paddr_valid = FALSE; | |
7427 | } | |
53020534 L |
7428 | if (isec == section_count) |
7429 | break; | |
7430 | } | |
84d1d650 L |
7431 | } |
7432 | } | |
7433 | ||
a76e6f2f | 7434 | if (map->includes_filehdr && lowest_section != NULL) |
2542e49e JL |
7435 | { |
7436 | /* Try to keep the space used by the headers plus any | |
7437 | padding fixed. If there are sections with file contents | |
7438 | in this segment then the lowest sh_offset is the best | |
7439 | guess. Otherwise the segment only has file contents for | |
7440 | the headers, and p_filesz is the best guess. */ | |
7441 | if (no_contents) | |
7442 | map->header_size = segment->p_filesz; | |
7443 | else | |
7444 | map->header_size = lowest_section->filepos; | |
7445 | } | |
d324f6d6 | 7446 | |
5d695627 AM |
7447 | if (section_count == 0) |
7448 | map->p_vaddr_offset = segment->p_vaddr; | |
7449 | else if (!map->includes_phdrs | |
7450 | && !map->includes_filehdr | |
7451 | && map->p_paddr_valid) | |
7452 | /* Account for padding before the first section. */ | |
7453 | map->p_vaddr_offset = (segment->p_paddr | |
7454 | - (lowest_section ? lowest_section->lma : 0)); | |
a76e6f2f | 7455 | |
84d1d650 L |
7456 | map->count = section_count; |
7457 | *pointer_to_map = map; | |
7458 | pointer_to_map = &map->next; | |
7459 | } | |
7460 | ||
12bd6957 | 7461 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7462 | return TRUE; |
7463 | } | |
7464 | ||
7465 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7466 | information. */ | |
7467 | ||
7468 | static bfd_boolean | |
7469 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7470 | { | |
84d1d650 L |
7471 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7472 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7473 | return TRUE; | |
7474 | ||
7475 | if (elf_tdata (ibfd)->phdr == NULL) | |
7476 | return TRUE; | |
7477 | ||
7478 | if (ibfd->xvec == obfd->xvec) | |
7479 | { | |
cb3ff1e5 NC |
7480 | /* Check to see if any sections in the input BFD |
7481 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7482 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7483 | asection *section, *osec; |
7484 | unsigned int i, num_segments; | |
7485 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7486 | const struct elf_backend_data *bed; |
7487 | ||
7488 | bed = get_elf_backend_data (ibfd); | |
7489 | ||
7490 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7491 | if (bed->want_p_paddr_set_to_zero) | |
7492 | goto rewrite; | |
84d1d650 L |
7493 | |
7494 | /* Initialize the segment mark field. */ | |
7495 | for (section = obfd->sections; section != NULL; | |
7496 | section = section->next) | |
7497 | section->segment_mark = FALSE; | |
7498 | ||
7499 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7500 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7501 | i < num_segments; | |
7502 | i++, segment++) | |
7503 | { | |
5f6999aa NC |
7504 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7505 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7506 | which severly confuses things, so always regenerate the segment | |
7507 | map in this case. */ | |
7508 | if (segment->p_paddr == 0 | |
7509 | && segment->p_memsz == 0 | |
7510 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7511 | goto rewrite; |
5f6999aa | 7512 | |
84d1d650 L |
7513 | for (section = ibfd->sections; |
7514 | section != NULL; section = section->next) | |
7515 | { | |
7516 | /* We mark the output section so that we know it comes | |
7517 | from the input BFD. */ | |
7518 | osec = section->output_section; | |
7519 | if (osec) | |
7520 | osec->segment_mark = TRUE; | |
7521 | ||
7522 | /* Check if this section is covered by the segment. */ | |
7523 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7524 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7525 | { |
7526 | /* FIXME: Check if its output section is changed or | |
7527 | removed. What else do we need to check? */ | |
7528 | if (osec == NULL | |
7529 | || section->flags != osec->flags | |
7530 | || section->lma != osec->lma | |
7531 | || section->vma != osec->vma | |
7532 | || section->size != osec->size | |
7533 | || section->rawsize != osec->rawsize | |
7534 | || section->alignment_power != osec->alignment_power) | |
7535 | goto rewrite; | |
7536 | } | |
7537 | } | |
7538 | } | |
7539 | ||
cb3ff1e5 | 7540 | /* Check to see if any output section do not come from the |
84d1d650 L |
7541 | input BFD. */ |
7542 | for (section = obfd->sections; section != NULL; | |
7543 | section = section->next) | |
7544 | { | |
535b785f | 7545 | if (!section->segment_mark) |
84d1d650 L |
7546 | goto rewrite; |
7547 | else | |
7548 | section->segment_mark = FALSE; | |
7549 | } | |
7550 | ||
7551 | return copy_elf_program_header (ibfd, obfd); | |
7552 | } | |
7553 | ||
7554 | rewrite: | |
f1d85785 L |
7555 | if (ibfd->xvec == obfd->xvec) |
7556 | { | |
7557 | /* When rewriting program header, set the output maxpagesize to | |
7558 | the maximum alignment of input PT_LOAD segments. */ | |
7559 | Elf_Internal_Phdr *segment; | |
7560 | unsigned int i; | |
7561 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7562 | bfd_vma maxpagesize = 0; | |
7563 | ||
7564 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7565 | i < num_segments; | |
7566 | i++, segment++) | |
7567 | if (segment->p_type == PT_LOAD | |
7568 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7569 | { |
7570 | /* PR 17512: file: f17299af. */ | |
7571 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7572 | /* xgettext:c-format */ |
2dcf00ce AM |
7573 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7574 | PRIx64 " is too large"), | |
7575 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7576 | else |
7577 | maxpagesize = segment->p_align; | |
7578 | } | |
f1d85785 L |
7579 | |
7580 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7581 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7582 | } | |
7583 | ||
84d1d650 L |
7584 | return rewrite_elf_program_header (ibfd, obfd); |
7585 | } | |
7586 | ||
ccd2ec6a L |
7587 | /* Initialize private output section information from input section. */ |
7588 | ||
7589 | bfd_boolean | |
7590 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7591 | asection *isec, | |
7592 | bfd *obfd, | |
7593 | asection *osec, | |
7594 | struct bfd_link_info *link_info) | |
7595 | ||
7596 | { | |
7597 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7598 | bfd_boolean final_link = (link_info != NULL |
7599 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7600 | |
7601 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7602 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7603 | return TRUE; | |
7604 | ||
ba85c43e NC |
7605 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7606 | ||
dfa7b0b8 AM |
7607 | /* For objcopy and relocatable link, don't copy the output ELF |
7608 | section type from input if the output BFD section flags have been | |
7609 | set to something different. For a final link allow some flags | |
7610 | that the linker clears to differ. */ | |
42bb2e33 | 7611 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7612 | && (osec->flags == isec->flags |
7613 | || (final_link | |
7614 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7615 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7616 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7617 | |
7618 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7619 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7620 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7621 | |
a91e1603 L |
7622 | /* Copy sh_info from input for mbind section. */ |
7623 | if (elf_section_flags (isec) & SHF_GNU_MBIND) | |
7624 | elf_section_data (osec)->this_hdr.sh_info | |
7625 | = elf_section_data (isec)->this_hdr.sh_info; | |
7626 | ||
ccd2ec6a L |
7627 | /* Set things up for objcopy and relocatable link. The output |
7628 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7629 | to the input group members. Ignore linker created group section. | |
7630 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7631 | if ((link_info == NULL |
7632 | || !link_info->resolve_section_groups) | |
7633 | && (elf_sec_group (isec) == NULL | |
7634 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7635 | { |
7bdf4127 AB |
7636 | if (elf_section_flags (isec) & SHF_GROUP) |
7637 | elf_section_flags (osec) |= SHF_GROUP; | |
7638 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7639 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7640 | } |
7641 | ||
7bdf4127 AB |
7642 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7643 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7644 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7645 | & SHF_COMPRESSED); | |
7646 | ||
ccd2ec6a L |
7647 | ihdr = &elf_section_data (isec)->this_hdr; |
7648 | ||
7649 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7650 | don't use the output section of the linked-to section since it | |
7651 | may be NULL at this point. */ | |
7652 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7653 | { | |
7654 | ohdr = &elf_section_data (osec)->this_hdr; | |
7655 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7656 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7657 | } | |
7658 | ||
7659 | osec->use_rela_p = isec->use_rela_p; | |
7660 | ||
7661 | return TRUE; | |
7662 | } | |
7663 | ||
252b5132 RH |
7664 | /* Copy private section information. This copies over the entsize |
7665 | field, and sometimes the info field. */ | |
7666 | ||
b34976b6 | 7667 | bfd_boolean |
217aa764 AM |
7668 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7669 | asection *isec, | |
7670 | bfd *obfd, | |
7671 | asection *osec) | |
252b5132 RH |
7672 | { |
7673 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7674 | ||
7675 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7676 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7677 | return TRUE; |
252b5132 | 7678 | |
252b5132 RH |
7679 | ihdr = &elf_section_data (isec)->this_hdr; |
7680 | ohdr = &elf_section_data (osec)->this_hdr; | |
7681 | ||
7682 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7683 | ||
7684 | if (ihdr->sh_type == SHT_SYMTAB | |
7685 | || ihdr->sh_type == SHT_DYNSYM | |
7686 | || ihdr->sh_type == SHT_GNU_verneed | |
7687 | || ihdr->sh_type == SHT_GNU_verdef) | |
7688 | ohdr->sh_info = ihdr->sh_info; | |
7689 | ||
ccd2ec6a L |
7690 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7691 | NULL); | |
252b5132 RH |
7692 | } |
7693 | ||
d0bf826b AM |
7694 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7695 | necessary if we are removing either the SHT_GROUP section or any of | |
7696 | the group member sections. DISCARDED is the value that a section's | |
7697 | output_section has if the section will be discarded, NULL when this | |
7698 | function is called from objcopy, bfd_abs_section_ptr when called | |
7699 | from the linker. */ | |
80fccad2 BW |
7700 | |
7701 | bfd_boolean | |
d0bf826b | 7702 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7703 | { |
30288845 AM |
7704 | asection *isec; |
7705 | ||
30288845 | 7706 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7707 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7708 | { |
7709 | asection *first = elf_next_in_group (isec); | |
7710 | asection *s = first; | |
d0bf826b AM |
7711 | bfd_size_type removed = 0; |
7712 | ||
30288845 AM |
7713 | while (s != NULL) |
7714 | { | |
415f38a6 AM |
7715 | /* If this member section is being output but the |
7716 | SHT_GROUP section is not, then clear the group info | |
7717 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7718 | if (s->output_section != discarded |
7719 | && isec->output_section == discarded) | |
30288845 AM |
7720 | { |
7721 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7722 | elf_group_name (s->output_section) = NULL; | |
7723 | } | |
415f38a6 AM |
7724 | /* Conversely, if the member section is not being output |
7725 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7726 | else if (s->output_section == discarded |
7727 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7728 | { |
7729 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7730 | removed += 4; | |
7731 | if (elf_sec->rel.hdr != NULL | |
7732 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7733 | removed += 4; | |
7734 | if (elf_sec->rela.hdr != NULL | |
7735 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7736 | removed += 4; | |
7737 | } | |
30288845 AM |
7738 | s = elf_next_in_group (s); |
7739 | if (s == first) | |
7740 | break; | |
7741 | } | |
d0bf826b AM |
7742 | if (removed != 0) |
7743 | { | |
7744 | if (discarded != NULL) | |
7745 | { | |
7746 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7747 | adjust the input section size. */ |
d0bf826b AM |
7748 | if (isec->rawsize == 0) |
7749 | isec->rawsize = isec->size; | |
7750 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7751 | if (isec->size <= 4) |
7752 | { | |
7753 | isec->size = 0; | |
7754 | isec->flags |= SEC_EXCLUDE; | |
7755 | } | |
d0bf826b AM |
7756 | } |
7757 | else | |
7758 | { | |
7759 | /* Adjust the output section size when called from | |
7760 | objcopy. */ | |
7761 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7762 | if (isec->output_section->size <= 4) |
7763 | { | |
7764 | isec->output_section->size = 0; | |
7765 | isec->output_section->flags |= SEC_EXCLUDE; | |
7766 | } | |
d0bf826b AM |
7767 | } |
7768 | } | |
30288845 AM |
7769 | } |
7770 | ||
80fccad2 BW |
7771 | return TRUE; |
7772 | } | |
7773 | ||
d0bf826b AM |
7774 | /* Copy private header information. */ |
7775 | ||
7776 | bfd_boolean | |
7777 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7778 | { | |
7779 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7780 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7781 | return TRUE; | |
7782 | ||
7783 | /* Copy over private BFD data if it has not already been copied. | |
7784 | This must be done here, rather than in the copy_private_bfd_data | |
7785 | entry point, because the latter is called after the section | |
7786 | contents have been set, which means that the program headers have | |
7787 | already been worked out. */ | |
12bd6957 | 7788 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7789 | { |
7790 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7791 | return FALSE; | |
7792 | } | |
7793 | ||
7794 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7795 | } | |
7796 | ||
252b5132 RH |
7797 | /* Copy private symbol information. If this symbol is in a section |
7798 | which we did not map into a BFD section, try to map the section | |
7799 | index correctly. We use special macro definitions for the mapped | |
7800 | section indices; these definitions are interpreted by the | |
7801 | swap_out_syms function. */ | |
7802 | ||
9ad5cbcf AM |
7803 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7804 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7805 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7806 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7807 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7808 | |
b34976b6 | 7809 | bfd_boolean |
217aa764 AM |
7810 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7811 | asymbol *isymarg, | |
7812 | bfd *obfd, | |
7813 | asymbol *osymarg) | |
252b5132 RH |
7814 | { |
7815 | elf_symbol_type *isym, *osym; | |
7816 | ||
7817 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7818 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7819 | return TRUE; |
252b5132 RH |
7820 | |
7821 | isym = elf_symbol_from (ibfd, isymarg); | |
7822 | osym = elf_symbol_from (obfd, osymarg); | |
7823 | ||
7824 | if (isym != NULL | |
8424d8f5 | 7825 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7826 | && osym != NULL |
7827 | && bfd_is_abs_section (isym->symbol.section)) | |
7828 | { | |
7829 | unsigned int shndx; | |
7830 | ||
7831 | shndx = isym->internal_elf_sym.st_shndx; | |
7832 | if (shndx == elf_onesymtab (ibfd)) | |
7833 | shndx = MAP_ONESYMTAB; | |
7834 | else if (shndx == elf_dynsymtab (ibfd)) | |
7835 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7836 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7837 | shndx = MAP_STRTAB; |
12bd6957 | 7838 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7839 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7840 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7841 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7842 | osym->internal_elf_sym.st_shndx = shndx; |
7843 | } | |
7844 | ||
b34976b6 | 7845 | return TRUE; |
252b5132 RH |
7846 | } |
7847 | ||
7848 | /* Swap out the symbols. */ | |
7849 | ||
b34976b6 | 7850 | static bfd_boolean |
217aa764 | 7851 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7852 | struct elf_strtab_hash **sttp, |
217aa764 | 7853 | int relocatable_p) |
252b5132 | 7854 | { |
9c5bfbb7 | 7855 | const struct elf_backend_data *bed; |
079e9a2f AM |
7856 | int symcount; |
7857 | asymbol **syms; | |
ef10c3ac | 7858 | struct elf_strtab_hash *stt; |
079e9a2f | 7859 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7860 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7861 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7862 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7863 | bfd_byte *outbound_syms; |
7864 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7865 | unsigned long outbound_syms_index; |
7866 | unsigned long outbound_shndx_index; | |
079e9a2f | 7867 | int idx; |
12bd6957 | 7868 | unsigned int num_locals; |
079e9a2f | 7869 | bfd_size_type amt; |
174fd7f9 | 7870 | bfd_boolean name_local_sections; |
252b5132 | 7871 | |
12bd6957 | 7872 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7873 | return FALSE; |
252b5132 | 7874 | |
c044fabd | 7875 | /* Dump out the symtabs. */ |
ef10c3ac | 7876 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7877 | if (stt == NULL) |
b34976b6 | 7878 | return FALSE; |
252b5132 | 7879 | |
079e9a2f AM |
7880 | bed = get_elf_backend_data (abfd); |
7881 | symcount = bfd_get_symcount (abfd); | |
7882 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7883 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7884 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7885 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7886 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7887 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7888 | |
7889 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7890 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7891 | ||
ef10c3ac L |
7892 | /* Allocate buffer to swap out the .strtab section. */ |
7893 | symstrtab = (struct elf_sym_strtab *) bfd_malloc ((symcount + 1) | |
7894 | * sizeof (*symstrtab)); | |
7895 | if (symstrtab == NULL) | |
7896 | { | |
7897 | _bfd_elf_strtab_free (stt); | |
7898 | return FALSE; | |
7899 | } | |
7900 | ||
a50b1753 | 7901 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 7902 | bed->s->sizeof_sym); |
079e9a2f | 7903 | if (outbound_syms == NULL) |
5ed6aba4 | 7904 | { |
ef10c3ac L |
7905 | error_return: |
7906 | _bfd_elf_strtab_free (stt); | |
7907 | free (symstrtab); | |
5ed6aba4 NC |
7908 | return FALSE; |
7909 | } | |
217aa764 | 7910 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 7911 | outbound_syms_index = 0; |
252b5132 | 7912 | |
9ad5cbcf | 7913 | outbound_shndx = NULL; |
ef10c3ac | 7914 | outbound_shndx_index = 0; |
6a40cf0c NC |
7915 | |
7916 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 7917 | { |
6a40cf0c NC |
7918 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
7919 | if (symtab_shndx_hdr->sh_name != 0) | |
7920 | { | |
7921 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
7922 | outbound_shndx = (bfd_byte *) | |
7923 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
7924 | if (outbound_shndx == NULL) | |
7925 | goto error_return; | |
5ed6aba4 | 7926 | |
6a40cf0c NC |
7927 | symtab_shndx_hdr->contents = outbound_shndx; |
7928 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
7929 | symtab_shndx_hdr->sh_size = amt; | |
7930 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
7931 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
7932 | } | |
7933 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
7934 | } |
7935 | ||
589e6347 | 7936 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
7937 | { |
7938 | /* Fill in zeroth symbol and swap it out. */ | |
7939 | Elf_Internal_Sym sym; | |
7940 | sym.st_name = 0; | |
7941 | sym.st_value = 0; | |
7942 | sym.st_size = 0; | |
7943 | sym.st_info = 0; | |
7944 | sym.st_other = 0; | |
7945 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 7946 | sym.st_target_internal = 0; |
ef10c3ac L |
7947 | symstrtab[0].sym = sym; |
7948 | symstrtab[0].dest_index = outbound_syms_index; | |
7949 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
7950 | outbound_syms_index++; | |
9ad5cbcf | 7951 | if (outbound_shndx != NULL) |
ef10c3ac | 7952 | outbound_shndx_index++; |
079e9a2f | 7953 | } |
252b5132 | 7954 | |
174fd7f9 RS |
7955 | name_local_sections |
7956 | = (bed->elf_backend_name_local_section_symbols | |
7957 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
7958 | ||
079e9a2f | 7959 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 7960 | for (idx = 0; idx < symcount;) |
252b5132 | 7961 | { |
252b5132 | 7962 | Elf_Internal_Sym sym; |
079e9a2f AM |
7963 | bfd_vma value = syms[idx]->value; |
7964 | elf_symbol_type *type_ptr; | |
7965 | flagword flags = syms[idx]->flags; | |
7966 | int type; | |
252b5132 | 7967 | |
174fd7f9 RS |
7968 | if (!name_local_sections |
7969 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
7970 | { |
7971 | /* Local section symbols have no name. */ | |
ef10c3ac | 7972 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
7973 | } |
7974 | else | |
7975 | { | |
ef10c3ac L |
7976 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
7977 | to get the final offset for st_name. */ | |
7978 | sym.st_name | |
7979 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
7980 | FALSE); | |
079e9a2f | 7981 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 7982 | goto error_return; |
079e9a2f | 7983 | } |
252b5132 | 7984 | |
079e9a2f | 7985 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 7986 | |
079e9a2f AM |
7987 | if ((flags & BSF_SECTION_SYM) == 0 |
7988 | && bfd_is_com_section (syms[idx]->section)) | |
7989 | { | |
7990 | /* ELF common symbols put the alignment into the `value' field, | |
7991 | and the size into the `size' field. This is backwards from | |
7992 | how BFD handles it, so reverse it here. */ | |
7993 | sym.st_size = value; | |
7994 | if (type_ptr == NULL | |
7995 | || type_ptr->internal_elf_sym.st_value == 0) | |
7996 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
7997 | else | |
7998 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
7999 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8000 | (abfd, syms[idx]->section); | |
8001 | } | |
8002 | else | |
8003 | { | |
8004 | asection *sec = syms[idx]->section; | |
cb33740c | 8005 | unsigned int shndx; |
252b5132 | 8006 | |
079e9a2f AM |
8007 | if (sec->output_section) |
8008 | { | |
8009 | value += sec->output_offset; | |
8010 | sec = sec->output_section; | |
8011 | } | |
589e6347 | 8012 | |
079e9a2f AM |
8013 | /* Don't add in the section vma for relocatable output. */ |
8014 | if (! relocatable_p) | |
8015 | value += sec->vma; | |
8016 | sym.st_value = value; | |
8017 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8018 | ||
8019 | if (bfd_is_abs_section (sec) | |
8020 | && type_ptr != NULL | |
8021 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8022 | { | |
8023 | /* This symbol is in a real ELF section which we did | |
8024 | not create as a BFD section. Undo the mapping done | |
8025 | by copy_private_symbol_data. */ | |
8026 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8027 | switch (shndx) | |
8028 | { | |
8029 | case MAP_ONESYMTAB: | |
8030 | shndx = elf_onesymtab (abfd); | |
8031 | break; | |
8032 | case MAP_DYNSYMTAB: | |
8033 | shndx = elf_dynsymtab (abfd); | |
8034 | break; | |
8035 | case MAP_STRTAB: | |
12bd6957 | 8036 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8037 | break; |
8038 | case MAP_SHSTRTAB: | |
12bd6957 | 8039 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8040 | break; |
9ad5cbcf | 8041 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8042 | if (elf_symtab_shndx_list (abfd)) |
8043 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8044 | break; |
079e9a2f | 8045 | default: |
15bc576a | 8046 | shndx = SHN_ABS; |
079e9a2f AM |
8047 | break; |
8048 | } | |
8049 | } | |
8050 | else | |
8051 | { | |
8052 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8053 | |
cb33740c | 8054 | if (shndx == SHN_BAD) |
079e9a2f AM |
8055 | { |
8056 | asection *sec2; | |
8057 | ||
8058 | /* Writing this would be a hell of a lot easier if | |
8059 | we had some decent documentation on bfd, and | |
8060 | knew what to expect of the library, and what to | |
8061 | demand of applications. For example, it | |
8062 | appears that `objcopy' might not set the | |
8063 | section of a symbol to be a section that is | |
8064 | actually in the output file. */ | |
8065 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8066 | if (sec2 != NULL) |
8067 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8068 | if (shndx == SHN_BAD) | |
589e6347 | 8069 | { |
695344c0 | 8070 | /* xgettext:c-format */ |
9793eb77 AM |
8071 | _bfd_error_handler |
8072 | (_("unable to find equivalent output section" | |
8073 | " for symbol '%s' from section '%s'"), | |
8074 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8075 | sec->name); | |
811072d8 | 8076 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8077 | goto error_return; |
589e6347 | 8078 | } |
079e9a2f AM |
8079 | } |
8080 | } | |
252b5132 | 8081 | |
079e9a2f AM |
8082 | sym.st_shndx = shndx; |
8083 | } | |
252b5132 | 8084 | |
13ae64f3 JJ |
8085 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8086 | type = STT_TLS; | |
d8045f23 NC |
8087 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8088 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8089 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8090 | type = STT_FUNC; |
8091 | else if ((flags & BSF_OBJECT) != 0) | |
8092 | type = STT_OBJECT; | |
d9352518 DB |
8093 | else if ((flags & BSF_RELC) != 0) |
8094 | type = STT_RELC; | |
8095 | else if ((flags & BSF_SRELC) != 0) | |
8096 | type = STT_SRELC; | |
079e9a2f AM |
8097 | else |
8098 | type = STT_NOTYPE; | |
252b5132 | 8099 | |
13ae64f3 JJ |
8100 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8101 | type = STT_TLS; | |
8102 | ||
589e6347 | 8103 | /* Processor-specific types. */ |
079e9a2f AM |
8104 | if (type_ptr != NULL |
8105 | && bed->elf_backend_get_symbol_type) | |
8106 | type = ((*bed->elf_backend_get_symbol_type) | |
8107 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8108 | |
079e9a2f AM |
8109 | if (flags & BSF_SECTION_SYM) |
8110 | { | |
8111 | if (flags & BSF_GLOBAL) | |
8112 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8113 | else | |
8114 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8115 | } | |
8116 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8117 | { |
b8871f35 L |
8118 | if (type != STT_TLS) |
8119 | { | |
8120 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8121 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8122 | ? STT_COMMON : STT_OBJECT); | |
8123 | else | |
8124 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8125 | ? STT_COMMON : STT_OBJECT); | |
8126 | } | |
8127 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8128 | } |
079e9a2f AM |
8129 | else if (bfd_is_und_section (syms[idx]->section)) |
8130 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8131 | ? STB_WEAK | |
8132 | : STB_GLOBAL), | |
8133 | type); | |
8134 | else if (flags & BSF_FILE) | |
8135 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8136 | else | |
8137 | { | |
8138 | int bind = STB_LOCAL; | |
252b5132 | 8139 | |
079e9a2f AM |
8140 | if (flags & BSF_LOCAL) |
8141 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8142 | else if (flags & BSF_GNU_UNIQUE) |
8143 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8144 | else if (flags & BSF_WEAK) |
8145 | bind = STB_WEAK; | |
8146 | else if (flags & BSF_GLOBAL) | |
8147 | bind = STB_GLOBAL; | |
252b5132 | 8148 | |
079e9a2f AM |
8149 | sym.st_info = ELF_ST_INFO (bind, type); |
8150 | } | |
252b5132 | 8151 | |
079e9a2f | 8152 | if (type_ptr != NULL) |
35fc36a8 RS |
8153 | { |
8154 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8155 | sym.st_target_internal | |
8156 | = type_ptr->internal_elf_sym.st_target_internal; | |
8157 | } | |
079e9a2f | 8158 | else |
35fc36a8 RS |
8159 | { |
8160 | sym.st_other = 0; | |
8161 | sym.st_target_internal = 0; | |
8162 | } | |
252b5132 | 8163 | |
ef10c3ac L |
8164 | idx++; |
8165 | symstrtab[idx].sym = sym; | |
8166 | symstrtab[idx].dest_index = outbound_syms_index; | |
8167 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8168 | ||
8169 | outbound_syms_index++; | |
9ad5cbcf | 8170 | if (outbound_shndx != NULL) |
ef10c3ac L |
8171 | outbound_shndx_index++; |
8172 | } | |
8173 | ||
8174 | /* Finalize the .strtab section. */ | |
8175 | _bfd_elf_strtab_finalize (stt); | |
8176 | ||
8177 | /* Swap out the .strtab section. */ | |
8178 | for (idx = 0; idx <= symcount; idx++) | |
8179 | { | |
8180 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8181 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8182 | elfsym->sym.st_name = 0; | |
8183 | else | |
8184 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8185 | elfsym->sym.st_name); | |
8186 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8187 | (outbound_syms | |
8188 | + (elfsym->dest_index | |
8189 | * bed->s->sizeof_sym)), | |
8190 | (outbound_shndx | |
8191 | + (elfsym->destshndx_index | |
8192 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8193 | } |
ef10c3ac | 8194 | free (symstrtab); |
252b5132 | 8195 | |
079e9a2f | 8196 | *sttp = stt; |
ef10c3ac | 8197 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8198 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8199 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8200 | symstrtab_hdr->sh_addr = 0; |
8201 | symstrtab_hdr->sh_entsize = 0; | |
8202 | symstrtab_hdr->sh_link = 0; | |
8203 | symstrtab_hdr->sh_info = 0; | |
8204 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8205 | |
b34976b6 | 8206 | return TRUE; |
252b5132 RH |
8207 | } |
8208 | ||
8209 | /* Return the number of bytes required to hold the symtab vector. | |
8210 | ||
8211 | Note that we base it on the count plus 1, since we will null terminate | |
8212 | the vector allocated based on this size. However, the ELF symbol table | |
8213 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8214 | ||
8215 | long | |
217aa764 | 8216 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
8217 | { |
8218 | long symcount; | |
8219 | long symtab_size; | |
8220 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8221 | ||
8222 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
8223 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8224 | if (symcount > 0) | |
8225 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8226 | |
8227 | return symtab_size; | |
8228 | } | |
8229 | ||
8230 | long | |
217aa764 | 8231 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
8232 | { |
8233 | long symcount; | |
8234 | long symtab_size; | |
8235 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8236 | ||
8237 | if (elf_dynsymtab (abfd) == 0) | |
8238 | { | |
8239 | bfd_set_error (bfd_error_invalid_operation); | |
8240 | return -1; | |
8241 | } | |
8242 | ||
8243 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
8244 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8245 | if (symcount > 0) | |
8246 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8247 | |
8248 | return symtab_size; | |
8249 | } | |
8250 | ||
8251 | long | |
217aa764 AM |
8252 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8253 | sec_ptr asect) | |
252b5132 RH |
8254 | { |
8255 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
8256 | } | |
8257 | ||
8258 | /* Canonicalize the relocs. */ | |
8259 | ||
8260 | long | |
217aa764 AM |
8261 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8262 | sec_ptr section, | |
8263 | arelent **relptr, | |
8264 | asymbol **symbols) | |
252b5132 RH |
8265 | { |
8266 | arelent *tblptr; | |
8267 | unsigned int i; | |
9c5bfbb7 | 8268 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8269 | |
b34976b6 | 8270 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8271 | return -1; |
8272 | ||
8273 | tblptr = section->relocation; | |
8274 | for (i = 0; i < section->reloc_count; i++) | |
8275 | *relptr++ = tblptr++; | |
8276 | ||
8277 | *relptr = NULL; | |
8278 | ||
8279 | return section->reloc_count; | |
8280 | } | |
8281 | ||
8282 | long | |
6cee3f79 | 8283 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8284 | { |
9c5bfbb7 | 8285 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8286 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8287 | |
8288 | if (symcount >= 0) | |
8289 | bfd_get_symcount (abfd) = symcount; | |
8290 | return symcount; | |
8291 | } | |
8292 | ||
8293 | long | |
217aa764 AM |
8294 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8295 | asymbol **allocation) | |
252b5132 | 8296 | { |
9c5bfbb7 | 8297 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8298 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8299 | |
8300 | if (symcount >= 0) | |
8301 | bfd_get_dynamic_symcount (abfd) = symcount; | |
8302 | return symcount; | |
252b5132 RH |
8303 | } |
8304 | ||
8615f3f2 AM |
8305 | /* Return the size required for the dynamic reloc entries. Any loadable |
8306 | section that was actually installed in the BFD, and has type SHT_REL | |
8307 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8308 | dynamic reloc section. */ | |
252b5132 RH |
8309 | |
8310 | long | |
217aa764 | 8311 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
8312 | { |
8313 | long ret; | |
8314 | asection *s; | |
8315 | ||
8316 | if (elf_dynsymtab (abfd) == 0) | |
8317 | { | |
8318 | bfd_set_error (bfd_error_invalid_operation); | |
8319 | return -1; | |
8320 | } | |
8321 | ||
8322 | ret = sizeof (arelent *); | |
8323 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 8324 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8325 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8326 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 8327 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
8328 | * sizeof (arelent *)); |
8329 | ||
8330 | return ret; | |
8331 | } | |
8332 | ||
8615f3f2 AM |
8333 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8334 | dynamic relocations as a single block, although they are actually | |
8335 | associated with particular sections; the interface, which was | |
8336 | designed for SunOS style shared libraries, expects that there is only | |
8337 | one set of dynamic relocs. Any loadable section that was actually | |
8338 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8339 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8340 | |
8341 | long | |
217aa764 AM |
8342 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8343 | arelent **storage, | |
8344 | asymbol **syms) | |
252b5132 | 8345 | { |
217aa764 | 8346 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8347 | asection *s; |
8348 | long ret; | |
8349 | ||
8350 | if (elf_dynsymtab (abfd) == 0) | |
8351 | { | |
8352 | bfd_set_error (bfd_error_invalid_operation); | |
8353 | return -1; | |
8354 | } | |
8355 | ||
8356 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8357 | ret = 0; | |
8358 | for (s = abfd->sections; s != NULL; s = s->next) | |
8359 | { | |
266b05cf | 8360 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8361 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8362 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8363 | { | |
8364 | arelent *p; | |
8365 | long count, i; | |
8366 | ||
b34976b6 | 8367 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8368 | return -1; |
eea6121a | 8369 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8370 | p = s->relocation; |
8371 | for (i = 0; i < count; i++) | |
8372 | *storage++ = p++; | |
8373 | ret += count; | |
8374 | } | |
8375 | } | |
8376 | ||
8377 | *storage = NULL; | |
8378 | ||
8379 | return ret; | |
8380 | } | |
8381 | \f | |
8382 | /* Read in the version information. */ | |
8383 | ||
b34976b6 | 8384 | bfd_boolean |
fc0e6df6 | 8385 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8386 | { |
8387 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8388 | unsigned int freeidx = 0; |
8389 | ||
8390 | if (elf_dynverref (abfd) != 0) | |
8391 | { | |
8392 | Elf_Internal_Shdr *hdr; | |
8393 | Elf_External_Verneed *everneed; | |
8394 | Elf_Internal_Verneed *iverneed; | |
8395 | unsigned int i; | |
d0fb9a8d | 8396 | bfd_byte *contents_end; |
fc0e6df6 PB |
8397 | |
8398 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8399 | ||
bd61e135 AM |
8400 | if (hdr->sh_info == 0 |
8401 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8402 | { |
601a03ba | 8403 | error_return_bad_verref: |
4eca0228 | 8404 | _bfd_error_handler |
871b3ab2 | 8405 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8406 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8407 | error_return_verref: |
8408 | elf_tdata (abfd)->verref = NULL; | |
8409 | elf_tdata (abfd)->cverrefs = 0; | |
8410 | goto error_return; | |
8411 | } | |
601a03ba AM |
8412 | |
8413 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
8414 | if (contents == NULL) | |
8415 | goto error_return_verref; | |
8416 | ||
fc0e6df6 PB |
8417 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8418 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8419 | goto error_return_verref; |
fc0e6df6 | 8420 | |
601a03ba | 8421 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8422 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8423 | |
8424 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8425 | goto error_return_verref; |
8426 | ||
8427 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8428 | == sizeof (Elf_External_Vernaux)); | |
8429 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8430 | everneed = (Elf_External_Verneed *) contents; |
8431 | iverneed = elf_tdata (abfd)->verref; | |
8432 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8433 | { | |
8434 | Elf_External_Vernaux *evernaux; | |
8435 | Elf_Internal_Vernaux *ivernaux; | |
8436 | unsigned int j; | |
8437 | ||
8438 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8439 | ||
8440 | iverneed->vn_bfd = abfd; | |
8441 | ||
8442 | iverneed->vn_filename = | |
8443 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8444 | iverneed->vn_file); | |
8445 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8446 | goto error_return_bad_verref; |
fc0e6df6 | 8447 | |
d0fb9a8d JJ |
8448 | if (iverneed->vn_cnt == 0) |
8449 | iverneed->vn_auxptr = NULL; | |
8450 | else | |
8451 | { | |
a50b1753 | 8452 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8453 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8454 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8455 | if (iverneed->vn_auxptr == NULL) |
8456 | goto error_return_verref; | |
8457 | } | |
8458 | ||
8459 | if (iverneed->vn_aux | |
8460 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8461 | goto error_return_bad_verref; |
fc0e6df6 PB |
8462 | |
8463 | evernaux = ((Elf_External_Vernaux *) | |
8464 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8465 | ivernaux = iverneed->vn_auxptr; | |
8466 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8467 | { | |
8468 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8469 | ||
8470 | ivernaux->vna_nodename = | |
8471 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8472 | ivernaux->vna_name); | |
8473 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8474 | goto error_return_bad_verref; |
fc0e6df6 | 8475 | |
25ff461f AM |
8476 | if (ivernaux->vna_other > freeidx) |
8477 | freeidx = ivernaux->vna_other; | |
8478 | ||
8479 | ivernaux->vna_nextptr = NULL; | |
8480 | if (ivernaux->vna_next == 0) | |
8481 | { | |
8482 | iverneed->vn_cnt = j + 1; | |
8483 | break; | |
8484 | } | |
fc0e6df6 PB |
8485 | if (j + 1 < iverneed->vn_cnt) |
8486 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8487 | |
d0fb9a8d JJ |
8488 | if (ivernaux->vna_next |
8489 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8490 | goto error_return_bad_verref; |
d0fb9a8d | 8491 | |
fc0e6df6 PB |
8492 | evernaux = ((Elf_External_Vernaux *) |
8493 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8494 | } |
8495 | ||
25ff461f AM |
8496 | iverneed->vn_nextref = NULL; |
8497 | if (iverneed->vn_next == 0) | |
8498 | break; | |
fc0e6df6 PB |
8499 | if (i + 1 < hdr->sh_info) |
8500 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8501 | |
d0fb9a8d JJ |
8502 | if (iverneed->vn_next |
8503 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8504 | goto error_return_bad_verref; |
d0fb9a8d | 8505 | |
fc0e6df6 PB |
8506 | everneed = ((Elf_External_Verneed *) |
8507 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8508 | } | |
25ff461f | 8509 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8510 | |
8511 | free (contents); | |
8512 | contents = NULL; | |
8513 | } | |
252b5132 RH |
8514 | |
8515 | if (elf_dynverdef (abfd) != 0) | |
8516 | { | |
8517 | Elf_Internal_Shdr *hdr; | |
8518 | Elf_External_Verdef *everdef; | |
8519 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8520 | Elf_Internal_Verdef *iverdefarr; |
8521 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8522 | unsigned int i; |
062e2358 | 8523 | unsigned int maxidx; |
d0fb9a8d | 8524 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8525 | |
8526 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8527 | ||
601a03ba AM |
8528 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8529 | { | |
8530 | error_return_bad_verdef: | |
4eca0228 | 8531 | _bfd_error_handler |
871b3ab2 | 8532 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8533 | bfd_set_error (bfd_error_bad_value); |
8534 | error_return_verdef: | |
8535 | elf_tdata (abfd)->verdef = NULL; | |
8536 | elf_tdata (abfd)->cverdefs = 0; | |
8537 | goto error_return; | |
8538 | } | |
8539 | ||
a50b1753 | 8540 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8541 | if (contents == NULL) |
601a03ba | 8542 | goto error_return_verdef; |
252b5132 | 8543 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8544 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8545 | goto error_return_verdef; |
d0fb9a8d JJ |
8546 | |
8547 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8548 | >= sizeof (Elf_External_Verdaux)); | |
8549 | contents_end_def = contents + hdr->sh_size | |
8550 | - sizeof (Elf_External_Verdef); | |
8551 | contents_end_aux = contents + hdr->sh_size | |
8552 | - sizeof (Elf_External_Verdaux); | |
8553 | ||
f631889e UD |
8554 | /* We know the number of entries in the section but not the maximum |
8555 | index. Therefore we have to run through all entries and find | |
8556 | the maximum. */ | |
252b5132 | 8557 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8558 | maxidx = 0; |
8559 | for (i = 0; i < hdr->sh_info; ++i) | |
8560 | { | |
8561 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8562 | ||
601a03ba AM |
8563 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8564 | goto error_return_bad_verdef; | |
062e2358 AM |
8565 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8566 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8567 | |
25ff461f AM |
8568 | if (iverdefmem.vd_next == 0) |
8569 | break; | |
8570 | ||
d0fb9a8d JJ |
8571 | if (iverdefmem.vd_next |
8572 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8573 | goto error_return_bad_verdef; |
d0fb9a8d | 8574 | |
f631889e UD |
8575 | everdef = ((Elf_External_Verdef *) |
8576 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8577 | } | |
8578 | ||
fc0e6df6 PB |
8579 | if (default_imported_symver) |
8580 | { | |
8581 | if (freeidx > maxidx) | |
8582 | maxidx = ++freeidx; | |
8583 | else | |
8584 | freeidx = ++maxidx; | |
8585 | } | |
201159ec | 8586 | |
601a03ba AM |
8587 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8588 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8589 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8590 | goto error_return_verdef; |
f631889e UD |
8591 | |
8592 | elf_tdata (abfd)->cverdefs = maxidx; | |
8593 | ||
8594 | everdef = (Elf_External_Verdef *) contents; | |
8595 | iverdefarr = elf_tdata (abfd)->verdef; | |
8596 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8597 | { |
8598 | Elf_External_Verdaux *everdaux; | |
8599 | Elf_Internal_Verdaux *iverdaux; | |
8600 | unsigned int j; | |
8601 | ||
f631889e UD |
8602 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8603 | ||
d0fb9a8d | 8604 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8605 | goto error_return_bad_verdef; |
d0fb9a8d | 8606 | |
f631889e | 8607 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8608 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8609 | |
8610 | iverdef->vd_bfd = abfd; | |
8611 | ||
d0fb9a8d JJ |
8612 | if (iverdef->vd_cnt == 0) |
8613 | iverdef->vd_auxptr = NULL; | |
8614 | else | |
8615 | { | |
a50b1753 | 8616 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8617 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8618 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8619 | if (iverdef->vd_auxptr == NULL) |
8620 | goto error_return_verdef; | |
8621 | } | |
8622 | ||
8623 | if (iverdef->vd_aux | |
8624 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8625 | goto error_return_bad_verdef; |
252b5132 RH |
8626 | |
8627 | everdaux = ((Elf_External_Verdaux *) | |
8628 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8629 | iverdaux = iverdef->vd_auxptr; | |
8630 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8631 | { | |
8632 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8633 | ||
8634 | iverdaux->vda_nodename = | |
8635 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8636 | iverdaux->vda_name); | |
8637 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8638 | goto error_return_bad_verdef; |
252b5132 | 8639 | |
25ff461f AM |
8640 | iverdaux->vda_nextptr = NULL; |
8641 | if (iverdaux->vda_next == 0) | |
8642 | { | |
8643 | iverdef->vd_cnt = j + 1; | |
8644 | break; | |
8645 | } | |
252b5132 RH |
8646 | if (j + 1 < iverdef->vd_cnt) |
8647 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8648 | |
d0fb9a8d JJ |
8649 | if (iverdaux->vda_next |
8650 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8651 | goto error_return_bad_verdef; |
d0fb9a8d | 8652 | |
252b5132 RH |
8653 | everdaux = ((Elf_External_Verdaux *) |
8654 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8655 | } | |
8656 | ||
595bce75 | 8657 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8658 | if (iverdef->vd_cnt) |
8659 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8660 | |
25ff461f AM |
8661 | iverdef->vd_nextdef = NULL; |
8662 | if (iverdef->vd_next == 0) | |
8663 | break; | |
d0fb9a8d | 8664 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8665 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8666 | |
8667 | everdef = ((Elf_External_Verdef *) | |
8668 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8669 | } | |
8670 | ||
8671 | free (contents); | |
8672 | contents = NULL; | |
8673 | } | |
fc0e6df6 | 8674 | else if (default_imported_symver) |
252b5132 | 8675 | { |
fc0e6df6 PB |
8676 | if (freeidx < 3) |
8677 | freeidx = 3; | |
8678 | else | |
8679 | freeidx++; | |
252b5132 | 8680 | |
a50b1753 | 8681 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8682 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8683 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8684 | goto error_return; |
8685 | ||
fc0e6df6 PB |
8686 | elf_tdata (abfd)->cverdefs = freeidx; |
8687 | } | |
252b5132 | 8688 | |
fc0e6df6 PB |
8689 | /* Create a default version based on the soname. */ |
8690 | if (default_imported_symver) | |
8691 | { | |
8692 | Elf_Internal_Verdef *iverdef; | |
8693 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8694 | |
5bb3703f | 8695 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8696 | |
fc0e6df6 PB |
8697 | iverdef->vd_version = VER_DEF_CURRENT; |
8698 | iverdef->vd_flags = 0; | |
8699 | iverdef->vd_ndx = freeidx; | |
8700 | iverdef->vd_cnt = 1; | |
252b5132 | 8701 | |
fc0e6df6 | 8702 | iverdef->vd_bfd = abfd; |
252b5132 | 8703 | |
fc0e6df6 PB |
8704 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8705 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8706 | goto error_return_verdef; |
fc0e6df6 | 8707 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8708 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8709 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8710 | if (iverdef->vd_auxptr == NULL) |
8711 | goto error_return_verdef; | |
252b5132 | 8712 | |
fc0e6df6 PB |
8713 | iverdaux = iverdef->vd_auxptr; |
8714 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8715 | } |
8716 | ||
b34976b6 | 8717 | return TRUE; |
252b5132 RH |
8718 | |
8719 | error_return: | |
5ed6aba4 | 8720 | if (contents != NULL) |
252b5132 | 8721 | free (contents); |
b34976b6 | 8722 | return FALSE; |
252b5132 RH |
8723 | } |
8724 | \f | |
8725 | asymbol * | |
217aa764 | 8726 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8727 | { |
8728 | elf_symbol_type *newsym; | |
8729 | ||
201159ec | 8730 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof * newsym); |
252b5132 RH |
8731 | if (!newsym) |
8732 | return NULL; | |
201159ec NC |
8733 | newsym->symbol.the_bfd = abfd; |
8734 | return &newsym->symbol; | |
252b5132 RH |
8735 | } |
8736 | ||
8737 | void | |
217aa764 AM |
8738 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8739 | asymbol *symbol, | |
8740 | symbol_info *ret) | |
252b5132 RH |
8741 | { |
8742 | bfd_symbol_info (symbol, ret); | |
8743 | } | |
8744 | ||
8745 | /* Return whether a symbol name implies a local symbol. Most targets | |
8746 | use this function for the is_local_label_name entry point, but some | |
8747 | override it. */ | |
8748 | ||
b34976b6 | 8749 | bfd_boolean |
217aa764 AM |
8750 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8751 | const char *name) | |
252b5132 RH |
8752 | { |
8753 | /* Normal local symbols start with ``.L''. */ | |
8754 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8755 | return TRUE; |
252b5132 RH |
8756 | |
8757 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8758 | DWARF debugging symbols starting with ``..''. */ | |
8759 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8760 | return TRUE; |
252b5132 RH |
8761 | |
8762 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8763 | emitting DWARF debugging output. I suspect this is actually a | |
8764 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8765 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8766 | underscore to be emitted on some ELF targets). For ease of use, | |
8767 | we treat such symbols as local. */ | |
8768 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8769 | return TRUE; |
252b5132 | 8770 | |
b1fa9dd6 NC |
8771 | /* Treat assembler generated fake symbols, dollar local labels and |
8772 | forward-backward labels (aka local labels) as locals. | |
8773 | These labels have the form: | |
8774 | ||
07d6d2b8 | 8775 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8776 | |
8777 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8778 | ||
8779 | Versions which start with .L will have already been matched above, | |
8780 | so we only need to match the rest. */ | |
8781 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8782 | { | |
8783 | bfd_boolean ret = FALSE; | |
8784 | const char * p; | |
8785 | char c; | |
8786 | ||
8787 | for (p = name + 2; (c = *p); p++) | |
8788 | { | |
8789 | if (c == 1 || c == 2) | |
8790 | { | |
8791 | if (c == 1 && p == name + 2) | |
8792 | /* A fake symbol. */ | |
8793 | return TRUE; | |
8794 | ||
8795 | /* FIXME: We are being paranoid here and treating symbols like | |
8796 | L0^Bfoo as if there were non-local, on the grounds that the | |
8797 | assembler will never generate them. But can any symbol | |
8798 | containing an ASCII value in the range 1-31 ever be anything | |
8799 | other than some kind of local ? */ | |
8800 | ret = TRUE; | |
8801 | } | |
8802 | ||
8803 | if (! ISDIGIT (c)) | |
8804 | { | |
8805 | ret = FALSE; | |
8806 | break; | |
8807 | } | |
8808 | } | |
8809 | return ret; | |
8810 | } | |
ffa54770 | 8811 | |
b34976b6 | 8812 | return FALSE; |
252b5132 RH |
8813 | } |
8814 | ||
8815 | alent * | |
217aa764 AM |
8816 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8817 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8818 | { |
8819 | abort (); | |
8820 | return NULL; | |
8821 | } | |
8822 | ||
b34976b6 | 8823 | bfd_boolean |
217aa764 AM |
8824 | _bfd_elf_set_arch_mach (bfd *abfd, |
8825 | enum bfd_architecture arch, | |
8826 | unsigned long machine) | |
252b5132 RH |
8827 | { |
8828 | /* If this isn't the right architecture for this backend, and this | |
8829 | isn't the generic backend, fail. */ | |
8830 | if (arch != get_elf_backend_data (abfd)->arch | |
8831 | && arch != bfd_arch_unknown | |
8832 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8833 | return FALSE; |
252b5132 RH |
8834 | |
8835 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8836 | } | |
8837 | ||
d1fad7c6 NC |
8838 | /* Find the nearest line to a particular section and offset, |
8839 | for error reporting. */ | |
8840 | ||
b34976b6 | 8841 | bfd_boolean |
217aa764 | 8842 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8843 | asymbol **symbols, |
fb167eb2 | 8844 | asection *section, |
217aa764 AM |
8845 | bfd_vma offset, |
8846 | const char **filename_ptr, | |
8847 | const char **functionname_ptr, | |
fb167eb2 AM |
8848 | unsigned int *line_ptr, |
8849 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8850 | { |
b34976b6 | 8851 | bfd_boolean found; |
d1fad7c6 | 8852 | |
fb167eb2 | 8853 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8854 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
8855 | line_ptr, discriminator_ptr, |
8856 | dwarf_debug_sections, 0, | |
e00e8198 AM |
8857 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8858 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8859 | filename_ptr, functionname_ptr, | |
8860 | line_ptr)) | |
d1fad7c6 NC |
8861 | { |
8862 | if (!*functionname_ptr) | |
e00e8198 AM |
8863 | _bfd_elf_find_function (abfd, symbols, section, offset, |
8864 | *filename_ptr ? NULL : filename_ptr, | |
8865 | functionname_ptr); | |
b34976b6 | 8866 | return TRUE; |
d1fad7c6 NC |
8867 | } |
8868 | ||
8869 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
8870 | &found, filename_ptr, |
8871 | functionname_ptr, line_ptr, | |
8872 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 8873 | return FALSE; |
dc43ada5 | 8874 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 8875 | return TRUE; |
d1fad7c6 NC |
8876 | |
8877 | if (symbols == NULL) | |
b34976b6 | 8878 | return FALSE; |
d1fad7c6 | 8879 | |
e00e8198 AM |
8880 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
8881 | filename_ptr, functionname_ptr)) | |
b34976b6 | 8882 | return FALSE; |
d1fad7c6 | 8883 | |
252b5132 | 8884 | *line_ptr = 0; |
b34976b6 | 8885 | return TRUE; |
252b5132 RH |
8886 | } |
8887 | ||
5420f73d L |
8888 | /* Find the line for a symbol. */ |
8889 | ||
8890 | bfd_boolean | |
8891 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
8892 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 8893 | { |
fb167eb2 AM |
8894 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
8895 | filename_ptr, NULL, line_ptr, NULL, | |
8896 | dwarf_debug_sections, 0, | |
8897 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
8898 | } |
8899 | ||
4ab527b0 FF |
8900 | /* After a call to bfd_find_nearest_line, successive calls to |
8901 | bfd_find_inliner_info can be used to get source information about | |
8902 | each level of function inlining that terminated at the address | |
8903 | passed to bfd_find_nearest_line. Currently this is only supported | |
8904 | for DWARF2 with appropriate DWARF3 extensions. */ | |
8905 | ||
8906 | bfd_boolean | |
8907 | _bfd_elf_find_inliner_info (bfd *abfd, | |
8908 | const char **filename_ptr, | |
8909 | const char **functionname_ptr, | |
8910 | unsigned int *line_ptr) | |
8911 | { | |
8912 | bfd_boolean found; | |
8913 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
8914 | functionname_ptr, line_ptr, | |
8915 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
8916 | return found; | |
8917 | } | |
8918 | ||
252b5132 | 8919 | int |
a6b96beb | 8920 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 8921 | { |
8ded5a0f AM |
8922 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
8923 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 8924 | |
0e1862bb | 8925 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 8926 | { |
12bd6957 | 8927 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 8928 | |
62d7a5f6 AM |
8929 | if (phdr_size == (bfd_size_type) -1) |
8930 | { | |
8931 | struct elf_segment_map *m; | |
8932 | ||
8933 | phdr_size = 0; | |
12bd6957 | 8934 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 8935 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 8936 | |
62d7a5f6 AM |
8937 | if (phdr_size == 0) |
8938 | phdr_size = get_program_header_size (abfd, info); | |
8939 | } | |
8ded5a0f | 8940 | |
12bd6957 | 8941 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
8942 | ret += phdr_size; |
8943 | } | |
8944 | ||
252b5132 RH |
8945 | return ret; |
8946 | } | |
8947 | ||
b34976b6 | 8948 | bfd_boolean |
217aa764 AM |
8949 | _bfd_elf_set_section_contents (bfd *abfd, |
8950 | sec_ptr section, | |
0f867abe | 8951 | const void *location, |
217aa764 AM |
8952 | file_ptr offset, |
8953 | bfd_size_type count) | |
252b5132 RH |
8954 | { |
8955 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 8956 | file_ptr pos; |
252b5132 RH |
8957 | |
8958 | if (! abfd->output_has_begun | |
217aa764 | 8959 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 8960 | return FALSE; |
252b5132 | 8961 | |
0ce398f1 L |
8962 | if (!count) |
8963 | return TRUE; | |
8964 | ||
252b5132 | 8965 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
8966 | if (hdr->sh_offset == (file_ptr) -1) |
8967 | { | |
8968 | /* We must compress this section. Write output to the buffer. */ | |
8969 | unsigned char *contents = hdr->contents; | |
8970 | if ((offset + count) > hdr->sh_size | |
8971 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
8972 | || contents == NULL) | |
8973 | abort (); | |
8974 | memcpy (contents + offset, location, count); | |
8975 | return TRUE; | |
8976 | } | |
dc810e39 AM |
8977 | pos = hdr->sh_offset + offset; |
8978 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
8979 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 8980 | return FALSE; |
252b5132 | 8981 | |
b34976b6 | 8982 | return TRUE; |
252b5132 RH |
8983 | } |
8984 | ||
f3185997 | 8985 | bfd_boolean |
217aa764 AM |
8986 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
8987 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
8988 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
8989 | { |
8990 | abort (); | |
f3185997 | 8991 | return FALSE; |
252b5132 RH |
8992 | } |
8993 | ||
252b5132 RH |
8994 | /* Try to convert a non-ELF reloc into an ELF one. */ |
8995 | ||
b34976b6 | 8996 | bfd_boolean |
217aa764 | 8997 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 8998 | { |
c044fabd | 8999 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9000 | |
9001 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9002 | { | |
9003 | bfd_reloc_code_real_type code; | |
9004 | reloc_howto_type *howto; | |
9005 | ||
9006 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9007 | equivalent ELF reloc. */ |
252b5132 RH |
9008 | |
9009 | if (areloc->howto->pc_relative) | |
9010 | { | |
9011 | switch (areloc->howto->bitsize) | |
9012 | { | |
9013 | case 8: | |
9014 | code = BFD_RELOC_8_PCREL; | |
9015 | break; | |
9016 | case 12: | |
9017 | code = BFD_RELOC_12_PCREL; | |
9018 | break; | |
9019 | case 16: | |
9020 | code = BFD_RELOC_16_PCREL; | |
9021 | break; | |
9022 | case 24: | |
9023 | code = BFD_RELOC_24_PCREL; | |
9024 | break; | |
9025 | case 32: | |
9026 | code = BFD_RELOC_32_PCREL; | |
9027 | break; | |
9028 | case 64: | |
9029 | code = BFD_RELOC_64_PCREL; | |
9030 | break; | |
9031 | default: | |
9032 | goto fail; | |
9033 | } | |
9034 | ||
9035 | howto = bfd_reloc_type_lookup (abfd, code); | |
9036 | ||
9037 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
9038 | { | |
9039 | if (howto->pcrel_offset) | |
9040 | areloc->addend += areloc->address; | |
9041 | else | |
9042 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9043 | } | |
9044 | } | |
9045 | else | |
9046 | { | |
9047 | switch (areloc->howto->bitsize) | |
9048 | { | |
9049 | case 8: | |
9050 | code = BFD_RELOC_8; | |
9051 | break; | |
9052 | case 14: | |
9053 | code = BFD_RELOC_14; | |
9054 | break; | |
9055 | case 16: | |
9056 | code = BFD_RELOC_16; | |
9057 | break; | |
9058 | case 26: | |
9059 | code = BFD_RELOC_26; | |
9060 | break; | |
9061 | case 32: | |
9062 | code = BFD_RELOC_32; | |
9063 | break; | |
9064 | case 64: | |
9065 | code = BFD_RELOC_64; | |
9066 | break; | |
9067 | default: | |
9068 | goto fail; | |
9069 | } | |
9070 | ||
9071 | howto = bfd_reloc_type_lookup (abfd, code); | |
9072 | } | |
9073 | ||
9074 | if (howto) | |
9075 | areloc->howto = howto; | |
9076 | else | |
9077 | goto fail; | |
9078 | } | |
9079 | ||
b34976b6 | 9080 | return TRUE; |
252b5132 RH |
9081 | |
9082 | fail: | |
0aa13fee AM |
9083 | /* xgettext:c-format */ |
9084 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9085 | abfd, areloc->howto->name); | |
252b5132 | 9086 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 9087 | return FALSE; |
252b5132 RH |
9088 | } |
9089 | ||
b34976b6 | 9090 | bfd_boolean |
217aa764 | 9091 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9092 | { |
d9071b0c TG |
9093 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9094 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9095 | { |
c0355132 | 9096 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9097 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9098 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9099 | } |
9100 | ||
9101 | return _bfd_generic_close_and_cleanup (abfd); | |
9102 | } | |
9103 | ||
9104 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9105 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9106 | range-checking to interfere. There is nothing else to do in processing | |
9107 | this reloc. */ | |
9108 | ||
9109 | bfd_reloc_status_type | |
217aa764 AM |
9110 | _bfd_elf_rel_vtable_reloc_fn |
9111 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9112 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9113 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9114 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9115 | { |
9116 | return bfd_reloc_ok; | |
9117 | } | |
252b5132 RH |
9118 | \f |
9119 | /* Elf core file support. Much of this only works on native | |
9120 | toolchains, since we rely on knowing the | |
9121 | machine-dependent procfs structure in order to pick | |
c044fabd | 9122 | out details about the corefile. */ |
252b5132 RH |
9123 | |
9124 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9125 | /* Needed for new procfs interface on sparc-solaris. */ |
9126 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9127 | # include <sys/procfs.h> |
9128 | #endif | |
9129 | ||
261b8d08 PA |
9130 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9131 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9132 | |
9133 | static int | |
217aa764 | 9134 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9135 | { |
261b8d08 PA |
9136 | int pid; |
9137 | ||
228e534f | 9138 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9139 | if (pid == 0) |
228e534f | 9140 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9141 | |
9142 | return pid; | |
252b5132 RH |
9143 | } |
9144 | ||
252b5132 RH |
9145 | /* If there isn't a section called NAME, make one, using |
9146 | data from SECT. Note, this function will generate a | |
9147 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9148 | overwrite it. */ |
252b5132 | 9149 | |
b34976b6 | 9150 | static bfd_boolean |
217aa764 | 9151 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9152 | { |
c044fabd | 9153 | asection *sect2; |
252b5132 RH |
9154 | |
9155 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9156 | return TRUE; |
252b5132 | 9157 | |
117ed4f8 | 9158 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9159 | if (sect2 == NULL) |
b34976b6 | 9160 | return FALSE; |
252b5132 | 9161 | |
eea6121a | 9162 | sect2->size = sect->size; |
252b5132 | 9163 | sect2->filepos = sect->filepos; |
252b5132 | 9164 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9165 | return TRUE; |
252b5132 RH |
9166 | } |
9167 | ||
bb0082d6 AM |
9168 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9169 | actually creates up to two pseudosections: | |
9170 | - For the single-threaded case, a section named NAME, unless | |
9171 | such a section already exists. | |
9172 | - For the multi-threaded case, a section named "NAME/PID", where | |
9173 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9174 | Both pseudosections have identical contents. */ |
b34976b6 | 9175 | bfd_boolean |
217aa764 AM |
9176 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9177 | char *name, | |
9178 | size_t size, | |
9179 | ufile_ptr filepos) | |
bb0082d6 AM |
9180 | { |
9181 | char buf[100]; | |
9182 | char *threaded_name; | |
d4c88bbb | 9183 | size_t len; |
bb0082d6 AM |
9184 | asection *sect; |
9185 | ||
9186 | /* Build the section name. */ | |
9187 | ||
9188 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9189 | len = strlen (buf) + 1; |
a50b1753 | 9190 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9191 | if (threaded_name == NULL) |
b34976b6 | 9192 | return FALSE; |
d4c88bbb | 9193 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9194 | |
117ed4f8 AM |
9195 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9196 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9197 | if (sect == NULL) |
b34976b6 | 9198 | return FALSE; |
eea6121a | 9199 | sect->size = size; |
bb0082d6 | 9200 | sect->filepos = filepos; |
bb0082d6 AM |
9201 | sect->alignment_power = 2; |
9202 | ||
936e320b | 9203 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9204 | } |
9205 | ||
252b5132 | 9206 | /* prstatus_t exists on: |
4a938328 | 9207 | solaris 2.5+ |
252b5132 RH |
9208 | linux 2.[01] + glibc |
9209 | unixware 4.2 | |
9210 | */ | |
9211 | ||
9212 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9213 | |
b34976b6 | 9214 | static bfd_boolean |
217aa764 | 9215 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9216 | { |
eea6121a | 9217 | size_t size; |
7ee38065 | 9218 | int offset; |
252b5132 | 9219 | |
4a938328 MS |
9220 | if (note->descsz == sizeof (prstatus_t)) |
9221 | { | |
9222 | prstatus_t prstat; | |
252b5132 | 9223 | |
eea6121a | 9224 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9225 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9226 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9227 | |
fa49d224 NC |
9228 | /* Do not overwrite the core signal if it |
9229 | has already been set by another thread. */ | |
228e534f AM |
9230 | if (elf_tdata (abfd)->core->signal == 0) |
9231 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9232 | if (elf_tdata (abfd)->core->pid == 0) | |
9233 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9234 | |
4a938328 MS |
9235 | /* pr_who exists on: |
9236 | solaris 2.5+ | |
9237 | unixware 4.2 | |
9238 | pr_who doesn't exist on: | |
9239 | linux 2.[01] | |
9240 | */ | |
252b5132 | 9241 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9242 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9243 | #else |
228e534f | 9244 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9245 | #endif |
4a938328 | 9246 | } |
7ee38065 | 9247 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9248 | else if (note->descsz == sizeof (prstatus32_t)) |
9249 | { | |
9250 | /* 64-bit host, 32-bit corefile */ | |
9251 | prstatus32_t prstat; | |
9252 | ||
eea6121a | 9253 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9254 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9255 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9256 | ||
fa49d224 NC |
9257 | /* Do not overwrite the core signal if it |
9258 | has already been set by another thread. */ | |
228e534f AM |
9259 | if (elf_tdata (abfd)->core->signal == 0) |
9260 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9261 | if (elf_tdata (abfd)->core->pid == 0) | |
9262 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9263 | |
9264 | /* pr_who exists on: | |
9265 | solaris 2.5+ | |
9266 | unixware 4.2 | |
9267 | pr_who doesn't exist on: | |
9268 | linux 2.[01] | |
9269 | */ | |
7ee38065 | 9270 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9271 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9272 | #else |
228e534f | 9273 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9274 | #endif |
9275 | } | |
7ee38065 | 9276 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9277 | else |
9278 | { | |
9279 | /* Fail - we don't know how to handle any other | |
9280 | note size (ie. data object type). */ | |
b34976b6 | 9281 | return TRUE; |
4a938328 | 9282 | } |
252b5132 | 9283 | |
bb0082d6 | 9284 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9285 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9286 | size, note->descpos + offset); |
252b5132 RH |
9287 | } |
9288 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9289 | ||
bb0082d6 | 9290 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9291 | static bfd_boolean |
217aa764 AM |
9292 | elfcore_make_note_pseudosection (bfd *abfd, |
9293 | char *name, | |
9294 | Elf_Internal_Note *note) | |
252b5132 | 9295 | { |
936e320b AM |
9296 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9297 | note->descsz, note->descpos); | |
252b5132 RH |
9298 | } |
9299 | ||
ff08c6bb JB |
9300 | /* There isn't a consistent prfpregset_t across platforms, |
9301 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9302 | data structure apart. */ |
9303 | ||
b34976b6 | 9304 | static bfd_boolean |
217aa764 | 9305 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9306 | { |
9307 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9308 | } | |
9309 | ||
ff08c6bb | 9310 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9311 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9312 | literally. */ |
c044fabd | 9313 | |
b34976b6 | 9314 | static bfd_boolean |
217aa764 | 9315 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9316 | { |
9317 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9318 | } | |
9319 | ||
4339cae0 L |
9320 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9321 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9322 | contents literally. */ | |
9323 | ||
9324 | static bfd_boolean | |
9325 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9326 | { | |
9327 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9328 | } | |
9329 | ||
97753bd5 AM |
9330 | static bfd_boolean |
9331 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9332 | { | |
9333 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9334 | } | |
9335 | ||
89eeb0bc LM |
9336 | static bfd_boolean |
9337 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9338 | { | |
9339 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9340 | } | |
97753bd5 | 9341 | |
cb2366c1 EBM |
9342 | static bfd_boolean |
9343 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9344 | { | |
9345 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9346 | } | |
9347 | ||
9348 | static bfd_boolean | |
9349 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9350 | { | |
9351 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9352 | } | |
9353 | ||
9354 | static bfd_boolean | |
9355 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9356 | { | |
9357 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9358 | } | |
9359 | ||
9360 | static bfd_boolean | |
9361 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9362 | { | |
9363 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9364 | } | |
9365 | ||
9366 | static bfd_boolean | |
9367 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9368 | { | |
9369 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9370 | } | |
9371 | ||
9372 | static bfd_boolean | |
9373 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9374 | { | |
9375 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9376 | } | |
9377 | ||
9378 | static bfd_boolean | |
9379 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9380 | { | |
9381 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9382 | } | |
9383 | ||
9384 | static bfd_boolean | |
9385 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9386 | { | |
9387 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9388 | } | |
9389 | ||
9390 | static bfd_boolean | |
9391 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9392 | { | |
9393 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9394 | } | |
9395 | ||
9396 | static bfd_boolean | |
9397 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9398 | { | |
9399 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9400 | } | |
9401 | ||
9402 | static bfd_boolean | |
9403 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9404 | { | |
9405 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9406 | } | |
9407 | ||
9408 | static bfd_boolean | |
9409 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9410 | { | |
9411 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9412 | } | |
9413 | ||
9414 | static bfd_boolean | |
9415 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9416 | { | |
9417 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9418 | } | |
9419 | ||
0675e188 UW |
9420 | static bfd_boolean |
9421 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9422 | { | |
9423 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9424 | } | |
9425 | ||
d7eeb400 MS |
9426 | static bfd_boolean |
9427 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9428 | { | |
9429 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9430 | } | |
9431 | ||
9432 | static bfd_boolean | |
9433 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9434 | { | |
9435 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9436 | } | |
9437 | ||
9438 | static bfd_boolean | |
9439 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9440 | { | |
9441 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9442 | } | |
9443 | ||
9444 | static bfd_boolean | |
9445 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9446 | { | |
9447 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9448 | } | |
9449 | ||
9450 | static bfd_boolean | |
9451 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9452 | { | |
9453 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9454 | } | |
9455 | ||
355b81d9 UW |
9456 | static bfd_boolean |
9457 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9458 | { | |
9459 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9460 | } | |
9461 | ||
9462 | static bfd_boolean | |
9463 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9464 | { | |
9465 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9466 | } | |
9467 | ||
abb3f6cc NC |
9468 | static bfd_boolean |
9469 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9470 | { | |
9471 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9472 | } | |
9473 | ||
4ef9f41a AA |
9474 | static bfd_boolean |
9475 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9476 | { | |
9477 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9478 | } | |
9479 | ||
9480 | static bfd_boolean | |
9481 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9482 | { | |
9483 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9484 | } | |
9485 | ||
88ab90e8 AA |
9486 | static bfd_boolean |
9487 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9488 | { | |
9489 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9490 | } | |
9491 | ||
9492 | static bfd_boolean | |
9493 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9494 | { | |
9495 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9496 | } | |
9497 | ||
faa9a424 UW |
9498 | static bfd_boolean |
9499 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9500 | { | |
9501 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9502 | } | |
9503 | ||
652451f8 YZ |
9504 | static bfd_boolean |
9505 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9506 | { | |
9507 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9508 | } | |
9509 | ||
9510 | static bfd_boolean | |
9511 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9512 | { | |
9513 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9514 | } | |
9515 | ||
9516 | static bfd_boolean | |
9517 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9518 | { | |
9519 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9520 | } | |
9521 | ||
ad1cc4e4 AH |
9522 | static bfd_boolean |
9523 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9524 | { | |
9525 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9526 | } | |
9527 | ||
252b5132 | 9528 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9529 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9530 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9531 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9532 | #endif | |
252b5132 RH |
9533 | #endif |
9534 | ||
9535 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9536 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9537 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9538 | typedef psinfo32_t elfcore_psinfo32_t; |
9539 | #endif | |
252b5132 RH |
9540 | #endif |
9541 | ||
252b5132 RH |
9542 | /* return a malloc'ed copy of a string at START which is at |
9543 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9544 | the copy will always have a terminating '\0'. */ |
252b5132 | 9545 | |
936e320b | 9546 | char * |
217aa764 | 9547 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9548 | { |
dc810e39 | 9549 | char *dups; |
a50b1753 | 9550 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9551 | size_t len; |
252b5132 RH |
9552 | |
9553 | if (end == NULL) | |
9554 | len = max; | |
9555 | else | |
9556 | len = end - start; | |
9557 | ||
a50b1753 | 9558 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9559 | if (dups == NULL) |
252b5132 RH |
9560 | return NULL; |
9561 | ||
dc810e39 AM |
9562 | memcpy (dups, start, len); |
9563 | dups[len] = '\0'; | |
252b5132 | 9564 | |
dc810e39 | 9565 | return dups; |
252b5132 RH |
9566 | } |
9567 | ||
bb0082d6 | 9568 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9569 | static bfd_boolean |
217aa764 | 9570 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9571 | { |
4a938328 MS |
9572 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9573 | { | |
9574 | elfcore_psinfo_t psinfo; | |
252b5132 | 9575 | |
7ee38065 | 9576 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9577 | |
335e41d4 | 9578 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9579 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9580 | #endif |
228e534f | 9581 | elf_tdata (abfd)->core->program |
936e320b AM |
9582 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9583 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9584 | |
228e534f | 9585 | elf_tdata (abfd)->core->command |
936e320b AM |
9586 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9587 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9588 | } |
7ee38065 | 9589 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9590 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9591 | { | |
9592 | /* 64-bit host, 32-bit corefile */ | |
9593 | elfcore_psinfo32_t psinfo; | |
9594 | ||
7ee38065 | 9595 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9596 | |
335e41d4 | 9597 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9598 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9599 | #endif |
228e534f | 9600 | elf_tdata (abfd)->core->program |
936e320b AM |
9601 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9602 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9603 | |
228e534f | 9604 | elf_tdata (abfd)->core->command |
936e320b AM |
9605 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9606 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9607 | } |
9608 | #endif | |
9609 | ||
9610 | else | |
9611 | { | |
9612 | /* Fail - we don't know how to handle any other | |
9613 | note size (ie. data object type). */ | |
b34976b6 | 9614 | return TRUE; |
4a938328 | 9615 | } |
252b5132 RH |
9616 | |
9617 | /* Note that for some reason, a spurious space is tacked | |
9618 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9619 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9620 | |
9621 | { | |
228e534f | 9622 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9623 | int n = strlen (command); |
9624 | ||
9625 | if (0 < n && command[n - 1] == ' ') | |
9626 | command[n - 1] = '\0'; | |
9627 | } | |
9628 | ||
b34976b6 | 9629 | return TRUE; |
252b5132 RH |
9630 | } |
9631 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9632 | ||
252b5132 | 9633 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9634 | static bfd_boolean |
217aa764 | 9635 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9636 | { |
f572a39d AM |
9637 | if (note->descsz == sizeof (pstatus_t) |
9638 | #if defined (HAVE_PXSTATUS_T) | |
9639 | || note->descsz == sizeof (pxstatus_t) | |
9640 | #endif | |
9641 | ) | |
4a938328 MS |
9642 | { |
9643 | pstatus_t pstat; | |
252b5132 | 9644 | |
4a938328 | 9645 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9646 | |
228e534f | 9647 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9648 | } |
7ee38065 | 9649 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9650 | else if (note->descsz == sizeof (pstatus32_t)) |
9651 | { | |
9652 | /* 64-bit host, 32-bit corefile */ | |
9653 | pstatus32_t pstat; | |
252b5132 | 9654 | |
4a938328 | 9655 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9656 | |
228e534f | 9657 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9658 | } |
9659 | #endif | |
252b5132 RH |
9660 | /* Could grab some more details from the "representative" |
9661 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9662 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9663 | |
b34976b6 | 9664 | return TRUE; |
252b5132 RH |
9665 | } |
9666 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9667 | ||
252b5132 | 9668 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9669 | static bfd_boolean |
217aa764 | 9670 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9671 | { |
9672 | lwpstatus_t lwpstat; | |
9673 | char buf[100]; | |
c044fabd | 9674 | char *name; |
d4c88bbb | 9675 | size_t len; |
c044fabd | 9676 | asection *sect; |
252b5132 | 9677 | |
f572a39d AM |
9678 | if (note->descsz != sizeof (lwpstat) |
9679 | #if defined (HAVE_LWPXSTATUS_T) | |
9680 | && note->descsz != sizeof (lwpxstatus_t) | |
9681 | #endif | |
9682 | ) | |
b34976b6 | 9683 | return TRUE; |
252b5132 RH |
9684 | |
9685 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9686 | ||
228e534f | 9687 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9688 | /* Do not overwrite the core signal if it has already been set by |
9689 | another thread. */ | |
228e534f AM |
9690 | if (elf_tdata (abfd)->core->signal == 0) |
9691 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9692 | |
c044fabd | 9693 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9694 | |
9695 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9696 | len = strlen (buf) + 1; |
217aa764 | 9697 | name = bfd_alloc (abfd, len); |
252b5132 | 9698 | if (name == NULL) |
b34976b6 | 9699 | return FALSE; |
d4c88bbb | 9700 | memcpy (name, buf, len); |
252b5132 | 9701 | |
117ed4f8 | 9702 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9703 | if (sect == NULL) |
b34976b6 | 9704 | return FALSE; |
252b5132 RH |
9705 | |
9706 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9707 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9708 | sect->filepos = note->descpos |
9709 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9710 | #endif | |
9711 | ||
9712 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9713 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9714 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9715 | #endif | |
9716 | ||
252b5132 RH |
9717 | sect->alignment_power = 2; |
9718 | ||
9719 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9720 | return FALSE; |
252b5132 RH |
9721 | |
9722 | /* Make a ".reg2/999" section */ | |
9723 | ||
9724 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9725 | len = strlen (buf) + 1; |
217aa764 | 9726 | name = bfd_alloc (abfd, len); |
252b5132 | 9727 | if (name == NULL) |
b34976b6 | 9728 | return FALSE; |
d4c88bbb | 9729 | memcpy (name, buf, len); |
252b5132 | 9730 | |
117ed4f8 | 9731 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9732 | if (sect == NULL) |
b34976b6 | 9733 | return FALSE; |
252b5132 RH |
9734 | |
9735 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9736 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9737 | sect->filepos = note->descpos |
9738 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9739 | #endif | |
9740 | ||
9741 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9742 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9743 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9744 | #endif | |
9745 | ||
252b5132 RH |
9746 | sect->alignment_power = 2; |
9747 | ||
936e320b | 9748 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9749 | } |
9750 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9751 | ||
b34976b6 | 9752 | static bfd_boolean |
217aa764 | 9753 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9754 | { |
9755 | char buf[30]; | |
c044fabd | 9756 | char *name; |
d4c88bbb | 9757 | size_t len; |
c044fabd | 9758 | asection *sect; |
4a6636fb PA |
9759 | int type; |
9760 | int is_active_thread; | |
9761 | bfd_vma base_addr; | |
16e9c715 | 9762 | |
4a6636fb | 9763 | if (note->descsz < 728) |
b34976b6 | 9764 | return TRUE; |
16e9c715 | 9765 | |
4a6636fb PA |
9766 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9767 | return TRUE; | |
9768 | ||
9769 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9770 | |
4a6636fb | 9771 | switch (type) |
16e9c715 | 9772 | { |
4a6636fb | 9773 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9774 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9775 | /* process_info.pid */ |
228e534f | 9776 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9777 | /* process_info.signal */ |
228e534f | 9778 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9779 | break; |
16e9c715 | 9780 | |
4a6636fb | 9781 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9782 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9783 | /* thread_info.tid */ |
9784 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9785 | |
d4c88bbb | 9786 | len = strlen (buf) + 1; |
a50b1753 | 9787 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9788 | if (name == NULL) |
b34976b6 | 9789 | return FALSE; |
c044fabd | 9790 | |
d4c88bbb | 9791 | memcpy (name, buf, len); |
16e9c715 | 9792 | |
117ed4f8 | 9793 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 9794 | if (sect == NULL) |
b34976b6 | 9795 | return FALSE; |
c044fabd | 9796 | |
4a6636fb PA |
9797 | /* sizeof (thread_info.thread_context) */ |
9798 | sect->size = 716; | |
9799 | /* offsetof (thread_info.thread_context) */ | |
9800 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
9801 | sect->alignment_power = 2; |
9802 | ||
4a6636fb PA |
9803 | /* thread_info.is_active_thread */ |
9804 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
9805 | ||
9806 | if (is_active_thread) | |
16e9c715 | 9807 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 9808 | return FALSE; |
16e9c715 NC |
9809 | break; |
9810 | ||
4a6636fb | 9811 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 9812 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
9813 | /* module_info.base_address */ |
9814 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 9815 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 9816 | |
d4c88bbb | 9817 | len = strlen (buf) + 1; |
a50b1753 | 9818 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9819 | if (name == NULL) |
b34976b6 | 9820 | return FALSE; |
c044fabd | 9821 | |
d4c88bbb | 9822 | memcpy (name, buf, len); |
252b5132 | 9823 | |
117ed4f8 | 9824 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 9825 | |
16e9c715 | 9826 | if (sect == NULL) |
b34976b6 | 9827 | return FALSE; |
c044fabd | 9828 | |
eea6121a | 9829 | sect->size = note->descsz; |
16e9c715 | 9830 | sect->filepos = note->descpos; |
16e9c715 NC |
9831 | sect->alignment_power = 2; |
9832 | break; | |
9833 | ||
9834 | default: | |
b34976b6 | 9835 | return TRUE; |
16e9c715 NC |
9836 | } |
9837 | ||
b34976b6 | 9838 | return TRUE; |
16e9c715 | 9839 | } |
252b5132 | 9840 | |
b34976b6 | 9841 | static bfd_boolean |
217aa764 | 9842 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9843 | { |
9c5bfbb7 | 9844 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 9845 | |
252b5132 RH |
9846 | switch (note->type) |
9847 | { | |
9848 | default: | |
b34976b6 | 9849 | return TRUE; |
252b5132 | 9850 | |
252b5132 | 9851 | case NT_PRSTATUS: |
bb0082d6 AM |
9852 | if (bed->elf_backend_grok_prstatus) |
9853 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 9854 | return TRUE; |
bb0082d6 | 9855 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 9856 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 9857 | #else |
b34976b6 | 9858 | return TRUE; |
252b5132 RH |
9859 | #endif |
9860 | ||
9861 | #if defined (HAVE_PSTATUS_T) | |
9862 | case NT_PSTATUS: | |
9863 | return elfcore_grok_pstatus (abfd, note); | |
9864 | #endif | |
9865 | ||
9866 | #if defined (HAVE_LWPSTATUS_T) | |
9867 | case NT_LWPSTATUS: | |
9868 | return elfcore_grok_lwpstatus (abfd, note); | |
9869 | #endif | |
9870 | ||
9871 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
9872 | return elfcore_grok_prfpreg (abfd, note); | |
9873 | ||
c044fabd | 9874 | case NT_WIN32PSTATUS: |
16e9c715 | 9875 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 9876 | |
c044fabd | 9877 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
9878 | if (note->namesz == 6 |
9879 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
9880 | return elfcore_grok_prxfpreg (abfd, note); |
9881 | else | |
b34976b6 | 9882 | return TRUE; |
ff08c6bb | 9883 | |
4339cae0 L |
9884 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
9885 | if (note->namesz == 6 | |
9886 | && strcmp (note->namedata, "LINUX") == 0) | |
9887 | return elfcore_grok_xstatereg (abfd, note); | |
9888 | else | |
9889 | return TRUE; | |
9890 | ||
97753bd5 AM |
9891 | case NT_PPC_VMX: |
9892 | if (note->namesz == 6 | |
9893 | && strcmp (note->namedata, "LINUX") == 0) | |
9894 | return elfcore_grok_ppc_vmx (abfd, note); | |
9895 | else | |
9896 | return TRUE; | |
9897 | ||
89eeb0bc LM |
9898 | case NT_PPC_VSX: |
9899 | if (note->namesz == 6 | |
07d6d2b8 AM |
9900 | && strcmp (note->namedata, "LINUX") == 0) |
9901 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 9902 | else |
07d6d2b8 | 9903 | return TRUE; |
89eeb0bc | 9904 | |
cb2366c1 EBM |
9905 | case NT_PPC_TAR: |
9906 | if (note->namesz == 6 | |
9907 | && strcmp (note->namedata, "LINUX") == 0) | |
9908 | return elfcore_grok_ppc_tar (abfd, note); | |
9909 | else | |
9910 | return TRUE; | |
9911 | ||
9912 | case NT_PPC_PPR: | |
9913 | if (note->namesz == 6 | |
9914 | && strcmp (note->namedata, "LINUX") == 0) | |
9915 | return elfcore_grok_ppc_ppr (abfd, note); | |
9916 | else | |
9917 | return TRUE; | |
9918 | ||
9919 | case NT_PPC_DSCR: | |
9920 | if (note->namesz == 6 | |
9921 | && strcmp (note->namedata, "LINUX") == 0) | |
9922 | return elfcore_grok_ppc_dscr (abfd, note); | |
9923 | else | |
9924 | return TRUE; | |
9925 | ||
9926 | case NT_PPC_EBB: | |
9927 | if (note->namesz == 6 | |
9928 | && strcmp (note->namedata, "LINUX") == 0) | |
9929 | return elfcore_grok_ppc_ebb (abfd, note); | |
9930 | else | |
9931 | return TRUE; | |
9932 | ||
9933 | case NT_PPC_PMU: | |
9934 | if (note->namesz == 6 | |
9935 | && strcmp (note->namedata, "LINUX") == 0) | |
9936 | return elfcore_grok_ppc_pmu (abfd, note); | |
9937 | else | |
9938 | return TRUE; | |
9939 | ||
9940 | case NT_PPC_TM_CGPR: | |
9941 | if (note->namesz == 6 | |
9942 | && strcmp (note->namedata, "LINUX") == 0) | |
9943 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
9944 | else | |
9945 | return TRUE; | |
9946 | ||
9947 | case NT_PPC_TM_CFPR: | |
9948 | if (note->namesz == 6 | |
9949 | && strcmp (note->namedata, "LINUX") == 0) | |
9950 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
9951 | else | |
9952 | return TRUE; | |
9953 | ||
9954 | case NT_PPC_TM_CVMX: | |
9955 | if (note->namesz == 6 | |
9956 | && strcmp (note->namedata, "LINUX") == 0) | |
9957 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
9958 | else | |
9959 | return TRUE; | |
9960 | ||
9961 | case NT_PPC_TM_CVSX: | |
9962 | if (note->namesz == 6 | |
9963 | && strcmp (note->namedata, "LINUX") == 0) | |
9964 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
9965 | else | |
9966 | return TRUE; | |
9967 | ||
9968 | case NT_PPC_TM_SPR: | |
9969 | if (note->namesz == 6 | |
9970 | && strcmp (note->namedata, "LINUX") == 0) | |
9971 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
9972 | else | |
9973 | return TRUE; | |
9974 | ||
9975 | case NT_PPC_TM_CTAR: | |
9976 | if (note->namesz == 6 | |
9977 | && strcmp (note->namedata, "LINUX") == 0) | |
9978 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
9979 | else | |
9980 | return TRUE; | |
9981 | ||
9982 | case NT_PPC_TM_CPPR: | |
9983 | if (note->namesz == 6 | |
9984 | && strcmp (note->namedata, "LINUX") == 0) | |
9985 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
9986 | else | |
9987 | return TRUE; | |
9988 | ||
9989 | case NT_PPC_TM_CDSCR: | |
9990 | if (note->namesz == 6 | |
9991 | && strcmp (note->namedata, "LINUX") == 0) | |
9992 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
9993 | else | |
9994 | return TRUE; | |
9995 | ||
0675e188 UW |
9996 | case NT_S390_HIGH_GPRS: |
9997 | if (note->namesz == 6 | |
07d6d2b8 AM |
9998 | && strcmp (note->namedata, "LINUX") == 0) |
9999 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10000 | else |
07d6d2b8 | 10001 | return TRUE; |
0675e188 | 10002 | |
d7eeb400 MS |
10003 | case NT_S390_TIMER: |
10004 | if (note->namesz == 6 | |
07d6d2b8 AM |
10005 | && strcmp (note->namedata, "LINUX") == 0) |
10006 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10007 | else |
07d6d2b8 | 10008 | return TRUE; |
d7eeb400 MS |
10009 | |
10010 | case NT_S390_TODCMP: | |
10011 | if (note->namesz == 6 | |
07d6d2b8 AM |
10012 | && strcmp (note->namedata, "LINUX") == 0) |
10013 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10014 | else |
07d6d2b8 | 10015 | return TRUE; |
d7eeb400 MS |
10016 | |
10017 | case NT_S390_TODPREG: | |
10018 | if (note->namesz == 6 | |
07d6d2b8 AM |
10019 | && strcmp (note->namedata, "LINUX") == 0) |
10020 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10021 | else |
07d6d2b8 | 10022 | return TRUE; |
d7eeb400 MS |
10023 | |
10024 | case NT_S390_CTRS: | |
10025 | if (note->namesz == 6 | |
07d6d2b8 AM |
10026 | && strcmp (note->namedata, "LINUX") == 0) |
10027 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10028 | else |
07d6d2b8 | 10029 | return TRUE; |
d7eeb400 MS |
10030 | |
10031 | case NT_S390_PREFIX: | |
10032 | if (note->namesz == 6 | |
07d6d2b8 AM |
10033 | && strcmp (note->namedata, "LINUX") == 0) |
10034 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10035 | else |
07d6d2b8 | 10036 | return TRUE; |
d7eeb400 | 10037 | |
355b81d9 UW |
10038 | case NT_S390_LAST_BREAK: |
10039 | if (note->namesz == 6 | |
07d6d2b8 AM |
10040 | && strcmp (note->namedata, "LINUX") == 0) |
10041 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10042 | else |
07d6d2b8 | 10043 | return TRUE; |
355b81d9 UW |
10044 | |
10045 | case NT_S390_SYSTEM_CALL: | |
10046 | if (note->namesz == 6 | |
07d6d2b8 AM |
10047 | && strcmp (note->namedata, "LINUX") == 0) |
10048 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10049 | else |
07d6d2b8 | 10050 | return TRUE; |
355b81d9 | 10051 | |
abb3f6cc NC |
10052 | case NT_S390_TDB: |
10053 | if (note->namesz == 6 | |
07d6d2b8 AM |
10054 | && strcmp (note->namedata, "LINUX") == 0) |
10055 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10056 | else |
07d6d2b8 | 10057 | return TRUE; |
abb3f6cc | 10058 | |
4ef9f41a AA |
10059 | case NT_S390_VXRS_LOW: |
10060 | if (note->namesz == 6 | |
10061 | && strcmp (note->namedata, "LINUX") == 0) | |
10062 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10063 | else | |
10064 | return TRUE; | |
10065 | ||
10066 | case NT_S390_VXRS_HIGH: | |
10067 | if (note->namesz == 6 | |
10068 | && strcmp (note->namedata, "LINUX") == 0) | |
10069 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10070 | else | |
10071 | return TRUE; | |
10072 | ||
88ab90e8 AA |
10073 | case NT_S390_GS_CB: |
10074 | if (note->namesz == 6 | |
10075 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10076 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10077 | else |
10078 | return TRUE; | |
10079 | ||
10080 | case NT_S390_GS_BC: | |
10081 | if (note->namesz == 6 | |
10082 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10083 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10084 | else |
10085 | return TRUE; | |
10086 | ||
faa9a424 UW |
10087 | case NT_ARM_VFP: |
10088 | if (note->namesz == 6 | |
10089 | && strcmp (note->namedata, "LINUX") == 0) | |
10090 | return elfcore_grok_arm_vfp (abfd, note); | |
10091 | else | |
10092 | return TRUE; | |
10093 | ||
652451f8 YZ |
10094 | case NT_ARM_TLS: |
10095 | if (note->namesz == 6 | |
10096 | && strcmp (note->namedata, "LINUX") == 0) | |
10097 | return elfcore_grok_aarch_tls (abfd, note); | |
10098 | else | |
10099 | return TRUE; | |
10100 | ||
10101 | case NT_ARM_HW_BREAK: | |
10102 | if (note->namesz == 6 | |
10103 | && strcmp (note->namedata, "LINUX") == 0) | |
10104 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10105 | else | |
10106 | return TRUE; | |
10107 | ||
10108 | case NT_ARM_HW_WATCH: | |
10109 | if (note->namesz == 6 | |
10110 | && strcmp (note->namedata, "LINUX") == 0) | |
10111 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10112 | else | |
10113 | return TRUE; | |
10114 | ||
ad1cc4e4 AH |
10115 | case NT_ARM_SVE: |
10116 | if (note->namesz == 6 | |
10117 | && strcmp (note->namedata, "LINUX") == 0) | |
10118 | return elfcore_grok_aarch_sve (abfd, note); | |
10119 | else | |
10120 | return TRUE; | |
10121 | ||
252b5132 RH |
10122 | case NT_PRPSINFO: |
10123 | case NT_PSINFO: | |
bb0082d6 AM |
10124 | if (bed->elf_backend_grok_psinfo) |
10125 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10126 | return TRUE; |
bb0082d6 | 10127 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10128 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10129 | #else |
b34976b6 | 10130 | return TRUE; |
252b5132 | 10131 | #endif |
3333a7c3 RM |
10132 | |
10133 | case NT_AUXV: | |
10134 | { | |
117ed4f8 AM |
10135 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
10136 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
10137 | |
10138 | if (sect == NULL) | |
10139 | return FALSE; | |
eea6121a | 10140 | sect->size = note->descsz; |
3333a7c3 | 10141 | sect->filepos = note->descpos; |
3333a7c3 RM |
10142 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
10143 | ||
10144 | return TRUE; | |
10145 | } | |
9015683b | 10146 | |
451b7c33 TT |
10147 | case NT_FILE: |
10148 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10149 | note); | |
10150 | ||
9015683b TT |
10151 | case NT_SIGINFO: |
10152 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10153 | note); | |
5b2c414d | 10154 | |
252b5132 RH |
10155 | } |
10156 | } | |
10157 | ||
718175fa JK |
10158 | static bfd_boolean |
10159 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10160 | { | |
c74f7d1c | 10161 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10162 | |
10163 | if (note->descsz == 0) | |
10164 | return FALSE; | |
10165 | ||
c74f7d1c JT |
10166 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10167 | if (build_id == NULL) | |
718175fa JK |
10168 | return FALSE; |
10169 | ||
c74f7d1c JT |
10170 | build_id->size = note->descsz; |
10171 | memcpy (build_id->data, note->descdata, note->descsz); | |
10172 | abfd->build_id = build_id; | |
718175fa JK |
10173 | |
10174 | return TRUE; | |
10175 | } | |
10176 | ||
10177 | static bfd_boolean | |
10178 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10179 | { | |
10180 | switch (note->type) | |
10181 | { | |
10182 | default: | |
10183 | return TRUE; | |
10184 | ||
46bed679 L |
10185 | case NT_GNU_PROPERTY_TYPE_0: |
10186 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10187 | ||
718175fa JK |
10188 | case NT_GNU_BUILD_ID: |
10189 | return elfobj_grok_gnu_build_id (abfd, note); | |
10190 | } | |
10191 | } | |
10192 | ||
e21e5835 NC |
10193 | static bfd_boolean |
10194 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10195 | { | |
10196 | struct sdt_note *cur = | |
10197 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
10198 | + note->descsz); | |
10199 | ||
10200 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10201 | cur->size = (bfd_size_type) note->descsz; | |
10202 | memcpy (cur->data, note->descdata, note->descsz); | |
10203 | ||
10204 | elf_tdata (abfd)->sdt_note_head = cur; | |
10205 | ||
10206 | return TRUE; | |
10207 | } | |
10208 | ||
10209 | static bfd_boolean | |
10210 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10211 | { | |
10212 | switch (note->type) | |
10213 | { | |
10214 | case NT_STAPSDT: | |
10215 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10216 | ||
10217 | default: | |
10218 | return TRUE; | |
10219 | } | |
10220 | } | |
10221 | ||
aa1ed4a9 JB |
10222 | static bfd_boolean |
10223 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10224 | { | |
10225 | size_t offset; | |
10226 | ||
b5430a3c | 10227 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10228 | { |
b5430a3c | 10229 | case ELFCLASS32: |
0064d223 JB |
10230 | if (note->descsz < 108) |
10231 | return FALSE; | |
aa1ed4a9 JB |
10232 | break; |
10233 | ||
b5430a3c | 10234 | case ELFCLASS64: |
0064d223 JB |
10235 | if (note->descsz < 120) |
10236 | return FALSE; | |
aa1ed4a9 JB |
10237 | break; |
10238 | ||
10239 | default: | |
10240 | return FALSE; | |
10241 | } | |
10242 | ||
0064d223 JB |
10243 | /* Check for version 1 in pr_version. */ |
10244 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10245 | return FALSE; | |
80a04378 | 10246 | |
0064d223 JB |
10247 | offset = 4; |
10248 | ||
10249 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10250 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10251 | offset += 4; |
10252 | else | |
10253 | { | |
10254 | offset += 4; /* Padding before pr_psinfosz. */ | |
10255 | offset += 8; | |
10256 | } | |
10257 | ||
aa1ed4a9 JB |
10258 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10259 | elf_tdata (abfd)->core->program | |
10260 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10261 | offset += 17; | |
10262 | ||
10263 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10264 | elf_tdata (abfd)->core->command | |
10265 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10266 | offset += 81; |
10267 | ||
10268 | /* Padding before pr_pid. */ | |
10269 | offset += 2; | |
10270 | ||
10271 | /* The pr_pid field was added in version "1a". */ | |
10272 | if (note->descsz < offset + 4) | |
10273 | return TRUE; | |
10274 | ||
10275 | elf_tdata (abfd)->core->pid | |
10276 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10277 | |
10278 | return TRUE; | |
10279 | } | |
10280 | ||
10281 | static bfd_boolean | |
10282 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10283 | { | |
10284 | size_t offset; | |
10285 | size_t size; | |
24d3e51b | 10286 | size_t min_size; |
aa1ed4a9 | 10287 | |
24d3e51b NC |
10288 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10289 | Also compute minimum size of this note. */ | |
b5430a3c | 10290 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10291 | { |
b5430a3c | 10292 | case ELFCLASS32: |
24d3e51b NC |
10293 | offset = 4 + 4; |
10294 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10295 | break; |
10296 | ||
b5430a3c | 10297 | case ELFCLASS64: |
24d3e51b NC |
10298 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10299 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10300 | break; |
10301 | ||
10302 | default: | |
10303 | return FALSE; | |
10304 | } | |
10305 | ||
24d3e51b NC |
10306 | if (note->descsz < min_size) |
10307 | return FALSE; | |
10308 | ||
10309 | /* Check for version 1 in pr_version. */ | |
10310 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10311 | return FALSE; | |
aa1ed4a9 | 10312 | |
24d3e51b NC |
10313 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10314 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10315 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10316 | { |
10317 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10318 | offset += 4 * 2; | |
10319 | } | |
b5430a3c | 10320 | else |
24d3e51b NC |
10321 | { |
10322 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10323 | offset += 8 * 2; | |
10324 | } | |
aa1ed4a9 | 10325 | |
24d3e51b | 10326 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10327 | offset += 4; |
10328 | ||
24d3e51b | 10329 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10330 | if (elf_tdata (abfd)->core->signal == 0) |
10331 | elf_tdata (abfd)->core->signal | |
10332 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10333 | offset += 4; | |
10334 | ||
24d3e51b | 10335 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10336 | elf_tdata (abfd)->core->lwpid |
10337 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10338 | offset += 4; | |
10339 | ||
24d3e51b | 10340 | /* Padding before pr_reg. */ |
b5430a3c | 10341 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10342 | offset += 4; |
10343 | ||
24d3e51b NC |
10344 | /* Make sure that there is enough data remaining in the note. */ |
10345 | if ((note->descsz - offset) < size) | |
10346 | return FALSE; | |
10347 | ||
aa1ed4a9 JB |
10348 | /* Make a ".reg/999" section and a ".reg" section. */ |
10349 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10350 | size, note->descpos + offset); | |
10351 | } | |
10352 | ||
10353 | static bfd_boolean | |
10354 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10355 | { | |
544c67cd JB |
10356 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10357 | ||
aa1ed4a9 JB |
10358 | switch (note->type) |
10359 | { | |
10360 | case NT_PRSTATUS: | |
544c67cd JB |
10361 | if (bed->elf_backend_grok_freebsd_prstatus) |
10362 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10363 | return TRUE; | |
aa1ed4a9 JB |
10364 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10365 | ||
10366 | case NT_FPREGSET: | |
10367 | return elfcore_grok_prfpreg (abfd, note); | |
10368 | ||
10369 | case NT_PRPSINFO: | |
10370 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10371 | ||
10372 | case NT_FREEBSD_THRMISC: | |
10373 | if (note->namesz == 8) | |
10374 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10375 | else | |
10376 | return TRUE; | |
10377 | ||
ddb2bbcf JB |
10378 | case NT_FREEBSD_PROCSTAT_PROC: |
10379 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10380 | note); | |
10381 | ||
10382 | case NT_FREEBSD_PROCSTAT_FILES: | |
10383 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10384 | note); | |
10385 | ||
10386 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10387 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10388 | note); | |
10389 | ||
3350c5f5 JB |
10390 | case NT_FREEBSD_PROCSTAT_AUXV: |
10391 | { | |
10392 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10393 | SEC_HAS_CONTENTS); | |
10394 | ||
10395 | if (sect == NULL) | |
10396 | return FALSE; | |
10397 | sect->size = note->descsz - 4; | |
10398 | sect->filepos = note->descpos + 4; | |
10399 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10400 | ||
10401 | return TRUE; | |
10402 | } | |
10403 | ||
aa1ed4a9 JB |
10404 | case NT_X86_XSTATE: |
10405 | if (note->namesz == 8) | |
10406 | return elfcore_grok_xstatereg (abfd, note); | |
10407 | else | |
10408 | return TRUE; | |
10409 | ||
e6f3b9c3 JB |
10410 | case NT_FREEBSD_PTLWPINFO: |
10411 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10412 | note); | |
10413 | ||
6d5be5d6 JB |
10414 | case NT_ARM_VFP: |
10415 | return elfcore_grok_arm_vfp (abfd, note); | |
10416 | ||
aa1ed4a9 JB |
10417 | default: |
10418 | return TRUE; | |
10419 | } | |
10420 | } | |
10421 | ||
b34976b6 | 10422 | static bfd_boolean |
217aa764 | 10423 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10424 | { |
10425 | char *cp; | |
10426 | ||
10427 | cp = strchr (note->namedata, '@'); | |
10428 | if (cp != NULL) | |
10429 | { | |
d2b64500 | 10430 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10431 | return TRUE; |
50b2bdb7 | 10432 | } |
b34976b6 | 10433 | return FALSE; |
50b2bdb7 AM |
10434 | } |
10435 | ||
b34976b6 | 10436 | static bfd_boolean |
217aa764 | 10437 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10438 | { |
80a04378 NC |
10439 | if (note->descsz <= 0x7c + 31) |
10440 | return FALSE; | |
10441 | ||
50b2bdb7 | 10442 | /* Signal number at offset 0x08. */ |
228e534f | 10443 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10444 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10445 | ||
10446 | /* Process ID at offset 0x50. */ | |
228e534f | 10447 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10448 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10449 | ||
10450 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10451 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10452 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10453 | ||
7720ba9f MK |
10454 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10455 | note); | |
50b2bdb7 AM |
10456 | } |
10457 | ||
b34976b6 | 10458 | static bfd_boolean |
217aa764 | 10459 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10460 | { |
10461 | int lwp; | |
10462 | ||
10463 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10464 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10465 | |
b4db1224 | 10466 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
10467 | { |
10468 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
10469 | find this note before any of the others, which is fine, |
10470 | since the kernel writes this note out first when it | |
10471 | creates a core file. */ | |
47d9a591 | 10472 | |
50b2bdb7 AM |
10473 | return elfcore_grok_netbsd_procinfo (abfd, note); |
10474 | } | |
10475 | ||
b4db1224 JT |
10476 | /* As of Jan 2002 there are no other machine-independent notes |
10477 | defined for NetBSD core files. If the note type is less | |
10478 | than the start of the machine-dependent note types, we don't | |
10479 | understand it. */ | |
47d9a591 | 10480 | |
b4db1224 | 10481 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10482 | return TRUE; |
50b2bdb7 AM |
10483 | |
10484 | ||
10485 | switch (bfd_get_arch (abfd)) | |
10486 | { | |
08a40648 AM |
10487 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10488 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10489 | |
10490 | case bfd_arch_alpha: | |
10491 | case bfd_arch_sparc: | |
10492 | switch (note->type) | |
08a40648 AM |
10493 | { |
10494 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10495 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10496 | |
08a40648 AM |
10497 | case NT_NETBSDCORE_FIRSTMACH+2: |
10498 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10499 | |
08a40648 AM |
10500 | default: |
10501 | return TRUE; | |
10502 | } | |
50b2bdb7 | 10503 | |
08a40648 AM |
10504 | /* On all other arch's, PT_GETREGS == mach+1 and |
10505 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10506 | |
10507 | default: | |
10508 | switch (note->type) | |
08a40648 AM |
10509 | { |
10510 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10511 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10512 | |
08a40648 AM |
10513 | case NT_NETBSDCORE_FIRSTMACH+3: |
10514 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10515 | |
08a40648 AM |
10516 | default: |
10517 | return TRUE; | |
10518 | } | |
50b2bdb7 AM |
10519 | } |
10520 | /* NOTREACHED */ | |
10521 | } | |
10522 | ||
67cc5033 MK |
10523 | static bfd_boolean |
10524 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10525 | { | |
80a04378 NC |
10526 | if (note->descsz <= 0x48 + 31) |
10527 | return FALSE; | |
10528 | ||
67cc5033 | 10529 | /* Signal number at offset 0x08. */ |
228e534f | 10530 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10531 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10532 | ||
10533 | /* Process ID at offset 0x20. */ | |
228e534f | 10534 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10535 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10536 | ||
10537 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10538 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10539 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10540 | ||
10541 | return TRUE; | |
10542 | } | |
10543 | ||
10544 | static bfd_boolean | |
10545 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10546 | { | |
10547 | if (note->type == NT_OPENBSD_PROCINFO) | |
10548 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10549 | ||
10550 | if (note->type == NT_OPENBSD_REGS) | |
10551 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10552 | ||
10553 | if (note->type == NT_OPENBSD_FPREGS) | |
10554 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10555 | ||
10556 | if (note->type == NT_OPENBSD_XFPREGS) | |
10557 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10558 | ||
10559 | if (note->type == NT_OPENBSD_AUXV) | |
10560 | { | |
10561 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10562 | SEC_HAS_CONTENTS); | |
10563 | ||
10564 | if (sect == NULL) | |
10565 | return FALSE; | |
10566 | sect->size = note->descsz; | |
10567 | sect->filepos = note->descpos; | |
10568 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10569 | ||
10570 | return TRUE; | |
10571 | } | |
10572 | ||
10573 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10574 | { | |
10575 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10576 | SEC_HAS_CONTENTS); | |
10577 | ||
10578 | if (sect == NULL) | |
10579 | return FALSE; | |
10580 | sect->size = note->descsz; | |
10581 | sect->filepos = note->descpos; | |
10582 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10583 | ||
10584 | return TRUE; | |
10585 | } | |
10586 | ||
10587 | return TRUE; | |
10588 | } | |
10589 | ||
07c6e936 | 10590 | static bfd_boolean |
d3fd4074 | 10591 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10592 | { |
10593 | void *ddata = note->descdata; | |
10594 | char buf[100]; | |
10595 | char *name; | |
10596 | asection *sect; | |
f8843e87 AM |
10597 | short sig; |
10598 | unsigned flags; | |
07c6e936 | 10599 | |
80a04378 NC |
10600 | if (note->descsz < 16) |
10601 | return FALSE; | |
10602 | ||
07c6e936 | 10603 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10604 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10605 | |
f8843e87 AM |
10606 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10607 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10608 | ||
10609 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10610 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10611 | |
10612 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10613 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10614 | { | |
228e534f AM |
10615 | elf_tdata (abfd)->core->signal = sig; |
10616 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10617 | } |
07c6e936 | 10618 | |
f8843e87 AM |
10619 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10620 | do not come from signals so we make sure we set the current | |
10621 | thread just in case. */ | |
10622 | if (flags & 0x00000080) | |
228e534f | 10623 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10624 | |
10625 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10626 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10627 | |
a50b1753 | 10628 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10629 | if (name == NULL) |
10630 | return FALSE; | |
10631 | strcpy (name, buf); | |
10632 | ||
117ed4f8 | 10633 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10634 | if (sect == NULL) |
10635 | return FALSE; | |
10636 | ||
07d6d2b8 AM |
10637 | sect->size = note->descsz; |
10638 | sect->filepos = note->descpos; | |
07c6e936 NC |
10639 | sect->alignment_power = 2; |
10640 | ||
10641 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10642 | } | |
10643 | ||
10644 | static bfd_boolean | |
d69f560c KW |
10645 | elfcore_grok_nto_regs (bfd *abfd, |
10646 | Elf_Internal_Note *note, | |
d3fd4074 | 10647 | long tid, |
d69f560c | 10648 | char *base) |
07c6e936 NC |
10649 | { |
10650 | char buf[100]; | |
10651 | char *name; | |
10652 | asection *sect; | |
10653 | ||
d69f560c | 10654 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10655 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10656 | |
a50b1753 | 10657 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10658 | if (name == NULL) |
10659 | return FALSE; | |
10660 | strcpy (name, buf); | |
10661 | ||
117ed4f8 | 10662 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10663 | if (sect == NULL) |
10664 | return FALSE; | |
10665 | ||
07d6d2b8 AM |
10666 | sect->size = note->descsz; |
10667 | sect->filepos = note->descpos; | |
07c6e936 NC |
10668 | sect->alignment_power = 2; |
10669 | ||
f8843e87 | 10670 | /* This is the current thread. */ |
228e534f | 10671 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10672 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10673 | |
10674 | return TRUE; | |
07c6e936 NC |
10675 | } |
10676 | ||
10677 | #define BFD_QNT_CORE_INFO 7 | |
10678 | #define BFD_QNT_CORE_STATUS 8 | |
10679 | #define BFD_QNT_CORE_GREG 9 | |
10680 | #define BFD_QNT_CORE_FPREG 10 | |
10681 | ||
10682 | static bfd_boolean | |
217aa764 | 10683 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10684 | { |
10685 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10686 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10687 | function. */ |
d3fd4074 | 10688 | static long tid = 1; |
07c6e936 NC |
10689 | |
10690 | switch (note->type) | |
10691 | { | |
d69f560c KW |
10692 | case BFD_QNT_CORE_INFO: |
10693 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10694 | case BFD_QNT_CORE_STATUS: | |
10695 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10696 | case BFD_QNT_CORE_GREG: | |
10697 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10698 | case BFD_QNT_CORE_FPREG: | |
10699 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10700 | default: | |
10701 | return TRUE; | |
07c6e936 NC |
10702 | } |
10703 | } | |
10704 | ||
b15fa79e AM |
10705 | static bfd_boolean |
10706 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10707 | { | |
10708 | char *name; | |
10709 | asection *sect; | |
10710 | size_t len; | |
10711 | ||
10712 | /* Use note name as section name. */ | |
10713 | len = note->namesz; | |
a50b1753 | 10714 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10715 | if (name == NULL) |
10716 | return FALSE; | |
10717 | memcpy (name, note->namedata, len); | |
10718 | name[len - 1] = '\0'; | |
10719 | ||
10720 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10721 | if (sect == NULL) | |
10722 | return FALSE; | |
10723 | ||
07d6d2b8 AM |
10724 | sect->size = note->descsz; |
10725 | sect->filepos = note->descpos; | |
b15fa79e AM |
10726 | sect->alignment_power = 1; |
10727 | ||
10728 | return TRUE; | |
10729 | } | |
10730 | ||
7c76fa91 MS |
10731 | /* Function: elfcore_write_note |
10732 | ||
47d9a591 | 10733 | Inputs: |
a39f3346 | 10734 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10735 | name of note |
10736 | type of note | |
10737 | data for note | |
10738 | size of data for note | |
10739 | ||
a39f3346 AM |
10740 | Writes note to end of buffer. ELF64 notes are written exactly as |
10741 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10742 | that they ought to have 8-byte namesz and descsz field, and have | |
10743 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10744 | ||
7c76fa91 | 10745 | Return: |
a39f3346 | 10746 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10747 | |
10748 | char * | |
a39f3346 | 10749 | elfcore_write_note (bfd *abfd, |
217aa764 | 10750 | char *buf, |
a39f3346 | 10751 | int *bufsiz, |
217aa764 | 10752 | const char *name, |
a39f3346 | 10753 | int type, |
217aa764 | 10754 | const void *input, |
a39f3346 | 10755 | int size) |
7c76fa91 MS |
10756 | { |
10757 | Elf_External_Note *xnp; | |
d4c88bbb | 10758 | size_t namesz; |
d4c88bbb | 10759 | size_t newspace; |
a39f3346 | 10760 | char *dest; |
7c76fa91 | 10761 | |
d4c88bbb | 10762 | namesz = 0; |
d4c88bbb | 10763 | if (name != NULL) |
a39f3346 | 10764 | namesz = strlen (name) + 1; |
d4c88bbb | 10765 | |
a39f3346 | 10766 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10767 | |
a50b1753 | 10768 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10769 | if (buf == NULL) |
10770 | return buf; | |
a39f3346 | 10771 | dest = buf + *bufsiz; |
7c76fa91 MS |
10772 | *bufsiz += newspace; |
10773 | xnp = (Elf_External_Note *) dest; | |
10774 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10775 | H_PUT_32 (abfd, size, xnp->descsz); | |
10776 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10777 | dest = xnp->name; |
10778 | if (name != NULL) | |
10779 | { | |
10780 | memcpy (dest, name, namesz); | |
10781 | dest += namesz; | |
a39f3346 | 10782 | while (namesz & 3) |
d4c88bbb AM |
10783 | { |
10784 | *dest++ = '\0'; | |
a39f3346 | 10785 | ++namesz; |
d4c88bbb AM |
10786 | } |
10787 | } | |
10788 | memcpy (dest, input, size); | |
a39f3346 AM |
10789 | dest += size; |
10790 | while (size & 3) | |
10791 | { | |
10792 | *dest++ = '\0'; | |
10793 | ++size; | |
10794 | } | |
10795 | return buf; | |
7c76fa91 MS |
10796 | } |
10797 | ||
602f1657 AM |
10798 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
10799 | possible string truncation. The "truncation" is not a bug. We | |
10800 | have an external representation of structs with fields that are not | |
10801 | necessarily NULL terminated and corresponding internal | |
10802 | representation fields that are one larger so that they can always | |
10803 | be NULL terminated. | |
10804 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
10805 | diagnostics inside functions, giving a hard error if you try to use | |
10806 | the finer control available with later versions. | |
10807 | gcc prior to 4.2 warns about diagnostic push and pop. | |
10808 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
10809 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
10810 | (*) Depending on your system header files! */ | |
d99b4b92 | 10811 | #if GCC_VERSION >= 8000 |
602f1657 AM |
10812 | # pragma GCC diagnostic push |
10813 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 10814 | #endif |
7c76fa91 | 10815 | char * |
217aa764 AM |
10816 | elfcore_write_prpsinfo (bfd *abfd, |
10817 | char *buf, | |
10818 | int *bufsiz, | |
10819 | const char *fname, | |
10820 | const char *psargs) | |
7c76fa91 | 10821 | { |
183e98be AM |
10822 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10823 | ||
10824 | if (bed->elf_backend_write_core_note != NULL) | |
10825 | { | |
10826 | char *ret; | |
10827 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10828 | NT_PRPSINFO, fname, psargs); | |
10829 | if (ret != NULL) | |
10830 | return ret; | |
10831 | } | |
7c76fa91 | 10832 | |
1f20dca5 | 10833 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 10834 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
10835 | if (bed->s->elfclass == ELFCLASS32) |
10836 | { | |
602f1657 | 10837 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
10838 | psinfo32_t data; |
10839 | int note_type = NT_PSINFO; | |
602f1657 | 10840 | # else |
183e98be AM |
10841 | prpsinfo32_t data; |
10842 | int note_type = NT_PRPSINFO; | |
602f1657 | 10843 | # endif |
183e98be AM |
10844 | |
10845 | memset (&data, 0, sizeof (data)); | |
10846 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10847 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10848 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10849 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
10850 | } |
10851 | else | |
602f1657 | 10852 | # endif |
183e98be | 10853 | { |
602f1657 | 10854 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
10855 | psinfo_t data; |
10856 | int note_type = NT_PSINFO; | |
602f1657 | 10857 | # else |
183e98be AM |
10858 | prpsinfo_t data; |
10859 | int note_type = NT_PRPSINFO; | |
602f1657 | 10860 | # endif |
7c76fa91 | 10861 | |
183e98be AM |
10862 | memset (&data, 0, sizeof (data)); |
10863 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10864 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10865 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10866 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 10867 | } |
7c76fa91 MS |
10868 | #endif /* PSINFO_T or PRPSINFO_T */ |
10869 | ||
1f20dca5 UW |
10870 | free (buf); |
10871 | return NULL; | |
10872 | } | |
d99b4b92 | 10873 | #if GCC_VERSION >= 8000 |
602f1657 | 10874 | # pragma GCC diagnostic pop |
d99b4b92 | 10875 | #endif |
1f20dca5 | 10876 | |
70a38d42 SDJ |
10877 | char * |
10878 | elfcore_write_linux_prpsinfo32 | |
10879 | (bfd *abfd, char *buf, int *bufsiz, | |
10880 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10881 | { | |
a2f63b2e MR |
10882 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
10883 | { | |
10884 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
10885 | ||
10886 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
10887 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10888 | &data, sizeof (data)); | |
10889 | } | |
10890 | else | |
10891 | { | |
10892 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 10893 | |
a2f63b2e MR |
10894 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
10895 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10896 | &data, sizeof (data)); | |
10897 | } | |
70a38d42 SDJ |
10898 | } |
10899 | ||
10900 | char * | |
10901 | elfcore_write_linux_prpsinfo64 | |
10902 | (bfd *abfd, char *buf, int *bufsiz, | |
10903 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10904 | { | |
3c9a7b0d MR |
10905 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
10906 | { | |
10907 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
10908 | ||
10909 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
10910 | return elfcore_write_note (abfd, buf, bufsiz, | |
10911 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10912 | } | |
10913 | else | |
10914 | { | |
10915 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 10916 | |
3c9a7b0d MR |
10917 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
10918 | return elfcore_write_note (abfd, buf, bufsiz, | |
10919 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10920 | } | |
70a38d42 SDJ |
10921 | } |
10922 | ||
7c76fa91 | 10923 | char * |
217aa764 AM |
10924 | elfcore_write_prstatus (bfd *abfd, |
10925 | char *buf, | |
10926 | int *bufsiz, | |
10927 | long pid, | |
10928 | int cursig, | |
10929 | const void *gregs) | |
7c76fa91 | 10930 | { |
183e98be | 10931 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 10932 | |
183e98be AM |
10933 | if (bed->elf_backend_write_core_note != NULL) |
10934 | { | |
10935 | char *ret; | |
10936 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10937 | NT_PRSTATUS, | |
10938 | pid, cursig, gregs); | |
10939 | if (ret != NULL) | |
10940 | return ret; | |
10941 | } | |
10942 | ||
1f20dca5 | 10943 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
10944 | #if defined (HAVE_PRSTATUS32_T) |
10945 | if (bed->s->elfclass == ELFCLASS32) | |
10946 | { | |
10947 | prstatus32_t prstat; | |
10948 | ||
10949 | memset (&prstat, 0, sizeof (prstat)); | |
10950 | prstat.pr_pid = pid; | |
10951 | prstat.pr_cursig = cursig; | |
10952 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10953 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10954 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
10955 | } | |
10956 | else | |
10957 | #endif | |
10958 | { | |
10959 | prstatus_t prstat; | |
10960 | ||
10961 | memset (&prstat, 0, sizeof (prstat)); | |
10962 | prstat.pr_pid = pid; | |
10963 | prstat.pr_cursig = cursig; | |
10964 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10965 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10966 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
10967 | } | |
7c76fa91 MS |
10968 | #endif /* HAVE_PRSTATUS_T */ |
10969 | ||
1f20dca5 UW |
10970 | free (buf); |
10971 | return NULL; | |
10972 | } | |
10973 | ||
51316059 MS |
10974 | #if defined (HAVE_LWPSTATUS_T) |
10975 | char * | |
217aa764 AM |
10976 | elfcore_write_lwpstatus (bfd *abfd, |
10977 | char *buf, | |
10978 | int *bufsiz, | |
10979 | long pid, | |
10980 | int cursig, | |
10981 | const void *gregs) | |
51316059 MS |
10982 | { |
10983 | lwpstatus_t lwpstat; | |
183e98be | 10984 | const char *note_name = "CORE"; |
51316059 MS |
10985 | |
10986 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
10987 | lwpstat.pr_lwpid = pid >> 16; | |
10988 | lwpstat.pr_cursig = cursig; | |
10989 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 10990 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
10991 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
10992 | #if !defined(gregs) | |
10993 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
10994 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
10995 | #else | |
10996 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
10997 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
10998 | #endif | |
10999 | #endif | |
47d9a591 | 11000 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11001 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11002 | } | |
11003 | #endif /* HAVE_LWPSTATUS_T */ | |
11004 | ||
7c76fa91 MS |
11005 | #if defined (HAVE_PSTATUS_T) |
11006 | char * | |
217aa764 AM |
11007 | elfcore_write_pstatus (bfd *abfd, |
11008 | char *buf, | |
11009 | int *bufsiz, | |
11010 | long pid, | |
6c10990d NC |
11011 | int cursig ATTRIBUTE_UNUSED, |
11012 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11013 | { |
183e98be AM |
11014 | const char *note_name = "CORE"; |
11015 | #if defined (HAVE_PSTATUS32_T) | |
11016 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11017 | |
183e98be AM |
11018 | if (bed->s->elfclass == ELFCLASS32) |
11019 | { | |
11020 | pstatus32_t pstat; | |
11021 | ||
11022 | memset (&pstat, 0, sizeof (pstat)); | |
11023 | pstat.pr_pid = pid & 0xffff; | |
11024 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11025 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11026 | return buf; | |
11027 | } | |
11028 | else | |
11029 | #endif | |
11030 | { | |
11031 | pstatus_t pstat; | |
11032 | ||
11033 | memset (&pstat, 0, sizeof (pstat)); | |
11034 | pstat.pr_pid = pid & 0xffff; | |
11035 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11036 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11037 | return buf; | |
11038 | } | |
7c76fa91 MS |
11039 | } |
11040 | #endif /* HAVE_PSTATUS_T */ | |
11041 | ||
11042 | char * | |
217aa764 AM |
11043 | elfcore_write_prfpreg (bfd *abfd, |
11044 | char *buf, | |
11045 | int *bufsiz, | |
11046 | const void *fpregs, | |
11047 | int size) | |
7c76fa91 | 11048 | { |
183e98be | 11049 | const char *note_name = "CORE"; |
47d9a591 | 11050 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11051 | note_name, NT_FPREGSET, fpregs, size); |
11052 | } | |
11053 | ||
11054 | char * | |
217aa764 AM |
11055 | elfcore_write_prxfpreg (bfd *abfd, |
11056 | char *buf, | |
11057 | int *bufsiz, | |
11058 | const void *xfpregs, | |
11059 | int size) | |
7c76fa91 MS |
11060 | { |
11061 | char *note_name = "LINUX"; | |
47d9a591 | 11062 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11063 | note_name, NT_PRXFPREG, xfpregs, size); |
11064 | } | |
11065 | ||
4339cae0 L |
11066 | char * |
11067 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11068 | const void *xfpregs, int size) | |
11069 | { | |
97de3545 JB |
11070 | char *note_name; |
11071 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11072 | note_name = "FreeBSD"; | |
11073 | else | |
11074 | note_name = "LINUX"; | |
4339cae0 L |
11075 | return elfcore_write_note (abfd, buf, bufsiz, |
11076 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11077 | } | |
11078 | ||
97753bd5 AM |
11079 | char * |
11080 | elfcore_write_ppc_vmx (bfd *abfd, | |
11081 | char *buf, | |
11082 | int *bufsiz, | |
11083 | const void *ppc_vmx, | |
11084 | int size) | |
11085 | { | |
11086 | char *note_name = "LINUX"; | |
11087 | return elfcore_write_note (abfd, buf, bufsiz, | |
11088 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11089 | } | |
11090 | ||
89eeb0bc LM |
11091 | char * |
11092 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11093 | char *buf, |
11094 | int *bufsiz, | |
11095 | const void *ppc_vsx, | |
11096 | int size) | |
89eeb0bc LM |
11097 | { |
11098 | char *note_name = "LINUX"; | |
11099 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11100 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11101 | } |
11102 | ||
cb2366c1 EBM |
11103 | char * |
11104 | elfcore_write_ppc_tar (bfd *abfd, | |
11105 | char *buf, | |
11106 | int *bufsiz, | |
11107 | const void *ppc_tar, | |
11108 | int size) | |
11109 | { | |
11110 | char *note_name = "LINUX"; | |
11111 | return elfcore_write_note (abfd, buf, bufsiz, | |
11112 | note_name, NT_PPC_TAR, ppc_tar, size); | |
11113 | } | |
11114 | ||
11115 | char * | |
11116 | elfcore_write_ppc_ppr (bfd *abfd, | |
11117 | char *buf, | |
11118 | int *bufsiz, | |
11119 | const void *ppc_ppr, | |
11120 | int size) | |
11121 | { | |
11122 | char *note_name = "LINUX"; | |
11123 | return elfcore_write_note (abfd, buf, bufsiz, | |
11124 | note_name, NT_PPC_PPR, ppc_ppr, size); | |
11125 | } | |
11126 | ||
11127 | char * | |
11128 | elfcore_write_ppc_dscr (bfd *abfd, | |
11129 | char *buf, | |
11130 | int *bufsiz, | |
11131 | const void *ppc_dscr, | |
11132 | int size) | |
11133 | { | |
11134 | char *note_name = "LINUX"; | |
11135 | return elfcore_write_note (abfd, buf, bufsiz, | |
11136 | note_name, NT_PPC_DSCR, ppc_dscr, size); | |
11137 | } | |
11138 | ||
11139 | char * | |
11140 | elfcore_write_ppc_ebb (bfd *abfd, | |
11141 | char *buf, | |
11142 | int *bufsiz, | |
11143 | const void *ppc_ebb, | |
11144 | int size) | |
11145 | { | |
11146 | char *note_name = "LINUX"; | |
11147 | return elfcore_write_note (abfd, buf, bufsiz, | |
11148 | note_name, NT_PPC_EBB, ppc_ebb, size); | |
11149 | } | |
11150 | ||
11151 | char * | |
11152 | elfcore_write_ppc_pmu (bfd *abfd, | |
11153 | char *buf, | |
11154 | int *bufsiz, | |
11155 | const void *ppc_pmu, | |
11156 | int size) | |
11157 | { | |
11158 | char *note_name = "LINUX"; | |
11159 | return elfcore_write_note (abfd, buf, bufsiz, | |
11160 | note_name, NT_PPC_PMU, ppc_pmu, size); | |
11161 | } | |
11162 | ||
11163 | char * | |
11164 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
11165 | char *buf, | |
11166 | int *bufsiz, | |
11167 | const void *ppc_tm_cgpr, | |
11168 | int size) | |
11169 | { | |
11170 | char *note_name = "LINUX"; | |
11171 | return elfcore_write_note (abfd, buf, bufsiz, | |
11172 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); | |
11173 | } | |
11174 | ||
11175 | char * | |
11176 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
11177 | char *buf, | |
11178 | int *bufsiz, | |
11179 | const void *ppc_tm_cfpr, | |
11180 | int size) | |
11181 | { | |
11182 | char *note_name = "LINUX"; | |
11183 | return elfcore_write_note (abfd, buf, bufsiz, | |
11184 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); | |
11185 | } | |
11186 | ||
11187 | char * | |
11188 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
11189 | char *buf, | |
11190 | int *bufsiz, | |
11191 | const void *ppc_tm_cvmx, | |
11192 | int size) | |
11193 | { | |
11194 | char *note_name = "LINUX"; | |
11195 | return elfcore_write_note (abfd, buf, bufsiz, | |
11196 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); | |
11197 | } | |
11198 | ||
11199 | char * | |
11200 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
11201 | char *buf, | |
11202 | int *bufsiz, | |
11203 | const void *ppc_tm_cvsx, | |
11204 | int size) | |
11205 | { | |
11206 | char *note_name = "LINUX"; | |
11207 | return elfcore_write_note (abfd, buf, bufsiz, | |
11208 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); | |
11209 | } | |
11210 | ||
11211 | char * | |
11212 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
11213 | char *buf, | |
11214 | int *bufsiz, | |
11215 | const void *ppc_tm_spr, | |
11216 | int size) | |
11217 | { | |
11218 | char *note_name = "LINUX"; | |
11219 | return elfcore_write_note (abfd, buf, bufsiz, | |
11220 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); | |
11221 | } | |
11222 | ||
11223 | char * | |
11224 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
11225 | char *buf, | |
11226 | int *bufsiz, | |
11227 | const void *ppc_tm_ctar, | |
11228 | int size) | |
11229 | { | |
11230 | char *note_name = "LINUX"; | |
11231 | return elfcore_write_note (abfd, buf, bufsiz, | |
11232 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); | |
11233 | } | |
11234 | ||
11235 | char * | |
11236 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
11237 | char *buf, | |
11238 | int *bufsiz, | |
11239 | const void *ppc_tm_cppr, | |
11240 | int size) | |
11241 | { | |
11242 | char *note_name = "LINUX"; | |
11243 | return elfcore_write_note (abfd, buf, bufsiz, | |
11244 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); | |
11245 | } | |
11246 | ||
11247 | char * | |
11248 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
11249 | char *buf, | |
11250 | int *bufsiz, | |
11251 | const void *ppc_tm_cdscr, | |
11252 | int size) | |
11253 | { | |
11254 | char *note_name = "LINUX"; | |
11255 | return elfcore_write_note (abfd, buf, bufsiz, | |
11256 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); | |
11257 | } | |
11258 | ||
0675e188 UW |
11259 | static char * |
11260 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11261 | char *buf, | |
11262 | int *bufsiz, | |
11263 | const void *s390_high_gprs, | |
11264 | int size) | |
11265 | { | |
11266 | char *note_name = "LINUX"; | |
11267 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11268 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11269 | s390_high_gprs, size); |
11270 | } | |
11271 | ||
d7eeb400 MS |
11272 | char * |
11273 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11274 | char *buf, |
11275 | int *bufsiz, | |
11276 | const void *s390_timer, | |
11277 | int size) | |
d7eeb400 MS |
11278 | { |
11279 | char *note_name = "LINUX"; | |
11280 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11281 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11282 | } |
11283 | ||
11284 | char * | |
11285 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11286 | char *buf, |
11287 | int *bufsiz, | |
11288 | const void *s390_todcmp, | |
11289 | int size) | |
d7eeb400 MS |
11290 | { |
11291 | char *note_name = "LINUX"; | |
11292 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11293 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11294 | } |
11295 | ||
11296 | char * | |
11297 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11298 | char *buf, |
11299 | int *bufsiz, | |
11300 | const void *s390_todpreg, | |
11301 | int size) | |
d7eeb400 MS |
11302 | { |
11303 | char *note_name = "LINUX"; | |
11304 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11305 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11306 | } |
11307 | ||
11308 | char * | |
11309 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11310 | char *buf, |
11311 | int *bufsiz, | |
11312 | const void *s390_ctrs, | |
11313 | int size) | |
d7eeb400 MS |
11314 | { |
11315 | char *note_name = "LINUX"; | |
11316 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11317 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11318 | } |
11319 | ||
11320 | char * | |
11321 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11322 | char *buf, |
11323 | int *bufsiz, | |
11324 | const void *s390_prefix, | |
11325 | int size) | |
d7eeb400 MS |
11326 | { |
11327 | char *note_name = "LINUX"; | |
11328 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11329 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11330 | } |
11331 | ||
355b81d9 UW |
11332 | char * |
11333 | elfcore_write_s390_last_break (bfd *abfd, | |
11334 | char *buf, | |
11335 | int *bufsiz, | |
11336 | const void *s390_last_break, | |
11337 | int size) | |
11338 | { | |
11339 | char *note_name = "LINUX"; | |
11340 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11341 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11342 | s390_last_break, size); |
11343 | } | |
11344 | ||
11345 | char * | |
11346 | elfcore_write_s390_system_call (bfd *abfd, | |
11347 | char *buf, | |
11348 | int *bufsiz, | |
11349 | const void *s390_system_call, | |
11350 | int size) | |
11351 | { | |
11352 | char *note_name = "LINUX"; | |
11353 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11354 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11355 | s390_system_call, size); |
11356 | } | |
11357 | ||
abb3f6cc NC |
11358 | char * |
11359 | elfcore_write_s390_tdb (bfd *abfd, | |
11360 | char *buf, | |
11361 | int *bufsiz, | |
11362 | const void *s390_tdb, | |
11363 | int size) | |
11364 | { | |
11365 | char *note_name = "LINUX"; | |
11366 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11367 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11368 | } |
11369 | ||
4ef9f41a AA |
11370 | char * |
11371 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11372 | char *buf, | |
11373 | int *bufsiz, | |
11374 | const void *s390_vxrs_low, | |
11375 | int size) | |
11376 | { | |
11377 | char *note_name = "LINUX"; | |
11378 | return elfcore_write_note (abfd, buf, bufsiz, | |
11379 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11380 | } | |
11381 | ||
11382 | char * | |
11383 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11384 | char *buf, | |
11385 | int *bufsiz, | |
11386 | const void *s390_vxrs_high, | |
11387 | int size) | |
11388 | { | |
11389 | char *note_name = "LINUX"; | |
11390 | return elfcore_write_note (abfd, buf, bufsiz, | |
11391 | note_name, NT_S390_VXRS_HIGH, | |
11392 | s390_vxrs_high, size); | |
11393 | } | |
11394 | ||
88ab90e8 AA |
11395 | char * |
11396 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11397 | char *buf, | |
11398 | int *bufsiz, | |
11399 | const void *s390_gs_cb, | |
11400 | int size) | |
11401 | { | |
11402 | char *note_name = "LINUX"; | |
11403 | return elfcore_write_note (abfd, buf, bufsiz, | |
11404 | note_name, NT_S390_GS_CB, | |
11405 | s390_gs_cb, size); | |
11406 | } | |
11407 | ||
11408 | char * | |
11409 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11410 | char *buf, | |
11411 | int *bufsiz, | |
11412 | const void *s390_gs_bc, | |
11413 | int size) | |
11414 | { | |
11415 | char *note_name = "LINUX"; | |
11416 | return elfcore_write_note (abfd, buf, bufsiz, | |
11417 | note_name, NT_S390_GS_BC, | |
11418 | s390_gs_bc, size); | |
11419 | } | |
11420 | ||
faa9a424 UW |
11421 | char * |
11422 | elfcore_write_arm_vfp (bfd *abfd, | |
11423 | char *buf, | |
11424 | int *bufsiz, | |
11425 | const void *arm_vfp, | |
11426 | int size) | |
11427 | { | |
11428 | char *note_name = "LINUX"; | |
11429 | return elfcore_write_note (abfd, buf, bufsiz, | |
11430 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11431 | } | |
11432 | ||
652451f8 YZ |
11433 | char * |
11434 | elfcore_write_aarch_tls (bfd *abfd, | |
11435 | char *buf, | |
11436 | int *bufsiz, | |
11437 | const void *aarch_tls, | |
11438 | int size) | |
11439 | { | |
11440 | char *note_name = "LINUX"; | |
11441 | return elfcore_write_note (abfd, buf, bufsiz, | |
11442 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11443 | } | |
11444 | ||
11445 | char * | |
11446 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11447 | char *buf, | |
11448 | int *bufsiz, | |
11449 | const void *aarch_hw_break, | |
11450 | int size) | |
11451 | { | |
11452 | char *note_name = "LINUX"; | |
11453 | return elfcore_write_note (abfd, buf, bufsiz, | |
11454 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11455 | } | |
11456 | ||
11457 | char * | |
11458 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11459 | char *buf, | |
11460 | int *bufsiz, | |
11461 | const void *aarch_hw_watch, | |
11462 | int size) | |
11463 | { | |
11464 | char *note_name = "LINUX"; | |
11465 | return elfcore_write_note (abfd, buf, bufsiz, | |
11466 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11467 | } | |
11468 | ||
ad1cc4e4 AH |
11469 | char * |
11470 | elfcore_write_aarch_sve (bfd *abfd, | |
11471 | char *buf, | |
11472 | int *bufsiz, | |
11473 | const void *aarch_sve, | |
11474 | int size) | |
11475 | { | |
11476 | char *note_name = "LINUX"; | |
11477 | return elfcore_write_note (abfd, buf, bufsiz, | |
11478 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11479 | } | |
11480 | ||
bb864ac1 CES |
11481 | char * |
11482 | elfcore_write_register_note (bfd *abfd, | |
11483 | char *buf, | |
11484 | int *bufsiz, | |
11485 | const char *section, | |
11486 | const void *data, | |
11487 | int size) | |
11488 | { | |
11489 | if (strcmp (section, ".reg2") == 0) | |
11490 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11491 | if (strcmp (section, ".reg-xfp") == 0) | |
11492 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11493 | if (strcmp (section, ".reg-xstate") == 0) |
11494 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11495 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11496 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11497 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11498 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11499 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11500 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11501 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11502 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11503 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11504 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11505 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11506 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11507 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11508 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11509 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11510 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11511 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11512 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11513 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11514 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11515 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11516 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11517 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11518 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11519 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11520 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11521 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11522 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11523 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11524 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11525 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11526 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11527 | if (strcmp (section, ".reg-s390-timer") == 0) |
11528 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11529 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11530 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11531 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11532 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11533 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11534 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11535 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11536 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11537 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11538 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11539 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11540 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11541 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11542 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11543 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11544 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11545 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11546 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11547 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11548 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11549 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11550 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11551 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11552 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11553 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11554 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11555 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11556 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11557 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11558 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11559 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11560 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11561 | return NULL; |
11562 | } | |
11563 | ||
b34976b6 | 11564 | static bfd_boolean |
276da9b3 L |
11565 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11566 | size_t align) | |
252b5132 | 11567 | { |
c044fabd | 11568 | char *p; |
252b5132 | 11569 | |
276da9b3 L |
11570 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11571 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11572 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11573 | align is less than 4, we use 4 byte alignment. */ | |
11574 | if (align < 4) | |
11575 | align = 4; | |
ef135d43 NC |
11576 | if (align != 4 && align != 8) |
11577 | return FALSE; | |
276da9b3 | 11578 | |
252b5132 RH |
11579 | p = buf; |
11580 | while (p < buf + size) | |
11581 | { | |
c044fabd | 11582 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11583 | Elf_Internal_Note in; |
11584 | ||
baea7ef1 AM |
11585 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11586 | return FALSE; | |
11587 | ||
dc810e39 | 11588 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11589 | |
dc810e39 | 11590 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11591 | in.namedata = xnp->name; |
baea7ef1 AM |
11592 | if (in.namesz > buf - in.namedata + size) |
11593 | return FALSE; | |
252b5132 | 11594 | |
dc810e39 | 11595 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11596 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11597 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11598 | if (in.descsz != 0 |
11599 | && (in.descdata >= buf + size | |
11600 | || in.descsz > buf - in.descdata + size)) | |
11601 | return FALSE; | |
252b5132 | 11602 | |
718175fa | 11603 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11604 | { |
718175fa JK |
11605 | default: |
11606 | return TRUE; | |
11607 | ||
11608 | case bfd_core: | |
f64e188b | 11609 | { |
8acbedd6 | 11610 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11611 | struct |
718175fa | 11612 | { |
f64e188b | 11613 | const char * string; |
8acbedd6 | 11614 | size_t len; |
f64e188b | 11615 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11616 | } |
f64e188b | 11617 | grokers[] = |
b15fa79e | 11618 | { |
8acbedd6 | 11619 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11620 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11621 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11622 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11623 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
11624 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 11625 | }; |
8acbedd6 | 11626 | #undef GROKER_ELEMENT |
f64e188b NC |
11627 | int i; |
11628 | ||
11629 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11630 | { |
11631 | if (in.namesz >= grokers[i].len | |
11632 | && strncmp (in.namedata, grokers[i].string, | |
11633 | grokers[i].len) == 0) | |
11634 | { | |
11635 | if (! grokers[i].func (abfd, & in)) | |
11636 | return FALSE; | |
11637 | break; | |
11638 | } | |
11639 | } | |
f64e188b NC |
11640 | break; |
11641 | } | |
718175fa JK |
11642 | |
11643 | case bfd_object: | |
11644 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11645 | { | |
11646 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11647 | return FALSE; | |
11648 | } | |
e21e5835 NC |
11649 | else if (in.namesz == sizeof "stapsdt" |
11650 | && strcmp (in.namedata, "stapsdt") == 0) | |
11651 | { | |
11652 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11653 | return FALSE; | |
11654 | } | |
718175fa | 11655 | break; |
08a40648 | 11656 | } |
252b5132 | 11657 | |
276da9b3 | 11658 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11659 | } |
11660 | ||
718175fa JK |
11661 | return TRUE; |
11662 | } | |
11663 | ||
11664 | static bfd_boolean | |
276da9b3 L |
11665 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11666 | size_t align) | |
718175fa JK |
11667 | { |
11668 | char *buf; | |
11669 | ||
957e1fc1 | 11670 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11671 | return TRUE; |
11672 | ||
11673 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11674 | return FALSE; | |
11675 | ||
f64e188b | 11676 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11677 | if (buf == NULL) |
11678 | return FALSE; | |
11679 | ||
f64e188b NC |
11680 | /* PR 17512: file: ec08f814 |
11681 | 0-termintate the buffer so that string searches will not overflow. */ | |
11682 | buf[size] = 0; | |
11683 | ||
718175fa | 11684 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11685 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11686 | { |
11687 | free (buf); | |
11688 | return FALSE; | |
11689 | } | |
11690 | ||
252b5132 | 11691 | free (buf); |
b34976b6 | 11692 | return TRUE; |
252b5132 | 11693 | } |
98d8431c JB |
11694 | \f |
11695 | /* Providing external access to the ELF program header table. */ | |
11696 | ||
11697 | /* Return an upper bound on the number of bytes required to store a | |
11698 | copy of ABFD's program header table entries. Return -1 if an error | |
11699 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11700 | |
98d8431c | 11701 | long |
217aa764 | 11702 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11703 | { |
11704 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11705 | { | |
11706 | bfd_set_error (bfd_error_wrong_format); | |
11707 | return -1; | |
11708 | } | |
11709 | ||
936e320b | 11710 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11711 | } |
11712 | ||
98d8431c JB |
11713 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11714 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11715 | defined in include/elf/internal.h. To find out how large the | |
11716 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11717 | ||
11718 | Return the number of program header table entries read, or -1 if an | |
11719 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11720 | |
98d8431c | 11721 | int |
217aa764 | 11722 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11723 | { |
11724 | int num_phdrs; | |
11725 | ||
11726 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11727 | { | |
11728 | bfd_set_error (bfd_error_wrong_format); | |
11729 | return -1; | |
11730 | } | |
11731 | ||
11732 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11733 | if (num_phdrs != 0) |
11734 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11735 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11736 | |
11737 | return num_phdrs; | |
11738 | } | |
ae4221d7 | 11739 | |
db6751f2 | 11740 | enum elf_reloc_type_class |
7e612e98 AM |
11741 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11742 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11743 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11744 | { |
11745 | return reloc_class_normal; | |
11746 | } | |
f8df10f4 | 11747 | |
47d9a591 | 11748 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11749 | relocation against a local symbol. */ |
11750 | ||
11751 | bfd_vma | |
217aa764 AM |
11752 | _bfd_elf_rela_local_sym (bfd *abfd, |
11753 | Elf_Internal_Sym *sym, | |
8517fae7 | 11754 | asection **psec, |
217aa764 | 11755 | Elf_Internal_Rela *rel) |
f8df10f4 | 11756 | { |
8517fae7 | 11757 | asection *sec = *psec; |
f8df10f4 JJ |
11758 | bfd_vma relocation; |
11759 | ||
11760 | relocation = (sec->output_section->vma | |
11761 | + sec->output_offset | |
11762 | + sym->st_value); | |
11763 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 11764 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11765 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11766 | { |
f8df10f4 | 11767 | rel->r_addend = |
8517fae7 | 11768 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11769 | elf_section_data (sec)->sec_info, |
753731ee AM |
11770 | sym->st_value + rel->r_addend); |
11771 | if (sec != *psec) | |
11772 | { | |
11773 | /* If we have changed the section, and our original section is | |
11774 | marked with SEC_EXCLUDE, it means that the original | |
11775 | SEC_MERGE section has been completely subsumed in some | |
11776 | other SEC_MERGE section. In this case, we need to leave | |
11777 | some info around for --emit-relocs. */ | |
11778 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
11779 | sec->kept_section = *psec; | |
11780 | sec = *psec; | |
11781 | } | |
8517fae7 AM |
11782 | rel->r_addend -= relocation; |
11783 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
11784 | } |
11785 | return relocation; | |
11786 | } | |
c629eae0 JJ |
11787 | |
11788 | bfd_vma | |
217aa764 AM |
11789 | _bfd_elf_rel_local_sym (bfd *abfd, |
11790 | Elf_Internal_Sym *sym, | |
11791 | asection **psec, | |
11792 | bfd_vma addend) | |
47d9a591 | 11793 | { |
c629eae0 JJ |
11794 | asection *sec = *psec; |
11795 | ||
dbaa2011 | 11796 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
11797 | return sym->st_value + addend; |
11798 | ||
11799 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 11800 | elf_section_data (sec)->sec_info, |
753731ee | 11801 | sym->st_value + addend); |
c629eae0 JJ |
11802 | } |
11803 | ||
37b01f6a DG |
11804 | /* Adjust an address within a section. Given OFFSET within SEC, return |
11805 | the new offset within the section, based upon changes made to the | |
11806 | section. Returns -1 if the offset is now invalid. | |
11807 | The offset (in abnd out) is in target sized bytes, however big a | |
11808 | byte may be. */ | |
11809 | ||
c629eae0 | 11810 | bfd_vma |
217aa764 | 11811 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 11812 | struct bfd_link_info *info, |
217aa764 AM |
11813 | asection *sec, |
11814 | bfd_vma offset) | |
c629eae0 | 11815 | { |
68bfbfcc | 11816 | switch (sec->sec_info_type) |
65765700 | 11817 | { |
dbaa2011 | 11818 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
11819 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
11820 | offset); | |
dbaa2011 | 11821 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 11822 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 11823 | |
65765700 | 11824 | default: |
310fd250 L |
11825 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
11826 | { | |
37b01f6a | 11827 | /* Reverse the offset. */ |
310fd250 L |
11828 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11829 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
11830 | |
11831 | /* address_size and sec->size are in octets. Convert | |
11832 | to bytes before subtracting the original offset. */ | |
11833 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 11834 | } |
65765700 JJ |
11835 | return offset; |
11836 | } | |
c629eae0 | 11837 | } |
3333a7c3 RM |
11838 | \f |
11839 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
11840 | reconstruct an ELF file by reading the segments out of remote memory | |
11841 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
11842 | points to. If not null, *LOADBASEP is filled in with the difference | |
11843 | between the VMAs from which the segments were read, and the VMAs the | |
11844 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
11845 | ||
11846 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
11847 | remote memory at target address VMA into the local buffer at MYADDR; it | |
11848 | should return zero on success or an `errno' code on failure. TEMPL must | |
11849 | be a BFD for an ELF target with the word size and byte order found in | |
11850 | the remote memory. */ | |
11851 | ||
11852 | bfd * | |
217aa764 AM |
11853 | bfd_elf_bfd_from_remote_memory |
11854 | (bfd *templ, | |
11855 | bfd_vma ehdr_vma, | |
f0a5d95a | 11856 | bfd_size_type size, |
217aa764 | 11857 | bfd_vma *loadbasep, |
fe78531d | 11858 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
11859 | { |
11860 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 11861 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 11862 | } |
4c45e5c9 JJ |
11863 | \f |
11864 | long | |
c9727e01 AM |
11865 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
11866 | long symcount ATTRIBUTE_UNUSED, | |
11867 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 11868 | long dynsymcount, |
c9727e01 AM |
11869 | asymbol **dynsyms, |
11870 | asymbol **ret) | |
4c45e5c9 JJ |
11871 | { |
11872 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
11873 | asection *relplt; | |
11874 | asymbol *s; | |
11875 | const char *relplt_name; | |
11876 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
11877 | arelent *p; | |
11878 | long count, i, n; | |
11879 | size_t size; | |
11880 | Elf_Internal_Shdr *hdr; | |
11881 | char *names; | |
11882 | asection *plt; | |
11883 | ||
8615f3f2 AM |
11884 | *ret = NULL; |
11885 | ||
90e3cdf2 JJ |
11886 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
11887 | return 0; | |
11888 | ||
8615f3f2 AM |
11889 | if (dynsymcount <= 0) |
11890 | return 0; | |
11891 | ||
4c45e5c9 JJ |
11892 | if (!bed->plt_sym_val) |
11893 | return 0; | |
11894 | ||
11895 | relplt_name = bed->relplt_name; | |
11896 | if (relplt_name == NULL) | |
d35fd659 | 11897 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
11898 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
11899 | if (relplt == NULL) | |
11900 | return 0; | |
11901 | ||
11902 | hdr = &elf_section_data (relplt)->this_hdr; | |
11903 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
11904 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
11905 | return 0; | |
11906 | ||
11907 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
11908 | if (plt == NULL) | |
11909 | return 0; | |
11910 | ||
11911 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 11912 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
11913 | return -1; |
11914 | ||
eea6121a | 11915 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
11916 | size = count * sizeof (asymbol); |
11917 | p = relplt->relocation; | |
cb53bf42 | 11918 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
11919 | { |
11920 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
11921 | if (p->addend != 0) | |
11922 | { | |
11923 | #ifdef BFD64 | |
11924 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
11925 | #else | |
11926 | size += sizeof ("+0x") - 1 + 8; | |
11927 | #endif | |
11928 | } | |
11929 | } | |
4c45e5c9 | 11930 | |
a50b1753 | 11931 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
11932 | if (s == NULL) |
11933 | return -1; | |
11934 | ||
11935 | names = (char *) (s + count); | |
11936 | p = relplt->relocation; | |
11937 | n = 0; | |
cb53bf42 | 11938 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
11939 | { |
11940 | size_t len; | |
11941 | bfd_vma addr; | |
11942 | ||
11943 | addr = bed->plt_sym_val (i, plt, p); | |
11944 | if (addr == (bfd_vma) -1) | |
11945 | continue; | |
11946 | ||
11947 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
11948 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
11949 | we are defining a symbol, ensure one of them is set. */ | |
11950 | if ((s->flags & BSF_LOCAL) == 0) | |
11951 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 11952 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
11953 | s->section = plt; |
11954 | s->value = addr - plt->vma; | |
11955 | s->name = names; | |
8f39ba8e | 11956 | s->udata.p = NULL; |
4c45e5c9 JJ |
11957 | len = strlen ((*p->sym_ptr_ptr)->name); |
11958 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
11959 | names += len; | |
041de40d AM |
11960 | if (p->addend != 0) |
11961 | { | |
1d770845 | 11962 | char buf[30], *a; |
d324f6d6 | 11963 | |
041de40d AM |
11964 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
11965 | names += sizeof ("+0x") - 1; | |
1d770845 L |
11966 | bfd_sprintf_vma (abfd, buf, p->addend); |
11967 | for (a = buf; *a == '0'; ++a) | |
11968 | ; | |
11969 | len = strlen (a); | |
11970 | memcpy (names, a, len); | |
11971 | names += len; | |
041de40d | 11972 | } |
4c45e5c9 JJ |
11973 | memcpy (names, "@plt", sizeof ("@plt")); |
11974 | names += sizeof ("@plt"); | |
8f39ba8e | 11975 | ++s, ++n; |
4c45e5c9 JJ |
11976 | } |
11977 | ||
11978 | return n; | |
11979 | } | |
3d7f7666 | 11980 | |
821e6ff6 AM |
11981 | /* It is only used by x86-64 so far. |
11982 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
11983 | but current usage would allow all of _bfd_std_section to be zero. */ |
11984 | static const asymbol lcomm_sym | |
11985 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 11986 | asection _bfd_elf_large_com_section |
7eacd66b | 11987 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 11988 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 11989 | |
d1036acb | 11990 | void |
78245035 L |
11991 | _bfd_elf_post_process_headers (bfd * abfd, |
11992 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
d1036acb L |
11993 | { |
11994 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
11995 | ||
11996 | i_ehdrp = elf_elfheader (abfd); | |
11997 | ||
11998 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
11999 | |
12000 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 12001 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 12002 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 12003 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 12004 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 12005 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 12006 | } |
fcb93ecf PB |
12007 | |
12008 | ||
12009 | /* Return TRUE for ELF symbol types that represent functions. | |
12010 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12011 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12012 | |
12013 | bfd_boolean | |
12014 | _bfd_elf_is_function_type (unsigned int type) | |
12015 | { | |
d8045f23 NC |
12016 | return (type == STT_FUNC |
12017 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12018 | } |
9f296da3 | 12019 | |
aef36ac1 AM |
12020 | /* If the ELF symbol SYM might be a function in SEC, return the |
12021 | function size and set *CODE_OFF to the function's entry point, | |
12022 | otherwise return zero. */ | |
9f296da3 | 12023 | |
aef36ac1 AM |
12024 | bfd_size_type |
12025 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12026 | bfd_vma *code_off) | |
9f296da3 | 12027 | { |
aef36ac1 AM |
12028 | bfd_size_type size; |
12029 | ||
ff9e0f5b | 12030 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12031 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12032 | || sym->section != sec) | |
12033 | return 0; | |
ff9e0f5b | 12034 | |
ff9e0f5b | 12035 | *code_off = sym->value; |
aef36ac1 AM |
12036 | size = 0; |
12037 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12038 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12039 | if (size == 0) | |
12040 | size = 1; | |
12041 | return size; | |
9f296da3 | 12042 | } |