Commit | Line | Data |
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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 AM |
713 | if (idx < shnum) |
714 | dest->shdr = elf_elfsections (abfd)[idx]; | |
715 | if (idx >= shnum | |
716 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 717 | { |
4eca0228 | 718 | _bfd_error_handler |
4bba0fb1 AM |
719 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
720 | abfd, i); | |
721 | dest->shdr = NULL; | |
dbb410c3 | 722 | } |
dbb410c3 AM |
723 | } |
724 | } | |
725 | } | |
493a3386 NC |
726 | |
727 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
728 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
729 | { | |
730 | elf_tdata (abfd)->num_group = num_group; | |
731 | ||
732 | /* If all groups are invalid then fail. */ | |
733 | if (num_group == 0) | |
734 | { | |
735 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
736 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 737 | _bfd_error_handler |
871b3ab2 | 738 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
739 | bfd_set_error (bfd_error_bad_value); |
740 | } | |
741 | } | |
dbb410c3 AM |
742 | } |
743 | } | |
744 | ||
745 | if (num_group != (unsigned) -1) | |
746 | { | |
564e11c9 JW |
747 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
748 | unsigned int j; | |
dbb410c3 | 749 | |
564e11c9 | 750 | for (j = 0; j < num_group; j++) |
dbb410c3 | 751 | { |
564e11c9 JW |
752 | /* Begin search from previous found group. */ |
753 | unsigned i = (j + search_offset) % num_group; | |
754 | ||
dbb410c3 | 755 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 756 | Elf_Internal_Group *idx; |
0c54f692 | 757 | bfd_size_type n_elt; |
ce497010 NC |
758 | |
759 | if (shdr == NULL) | |
760 | continue; | |
761 | ||
762 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
763 | if (idx == NULL || shdr->sh_size < 4) |
764 | { | |
765 | /* See PR 21957 for a reproducer. */ | |
766 | /* xgettext:c-format */ | |
871b3ab2 | 767 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
768 | abfd, shdr->bfd_section); |
769 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
770 | bfd_set_error (bfd_error_bad_value); | |
771 | return FALSE; | |
772 | } | |
ce497010 | 773 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
774 | |
775 | /* Look through this group's sections to see if current | |
776 | section is a member. */ | |
777 | while (--n_elt != 0) | |
778 | if ((++idx)->shdr == hdr) | |
779 | { | |
e0e8c97f | 780 | asection *s = NULL; |
dbb410c3 AM |
781 | |
782 | /* We are a member of this group. Go looking through | |
783 | other members to see if any others are linked via | |
784 | next_in_group. */ | |
785 | idx = (Elf_Internal_Group *) shdr->contents; | |
786 | n_elt = shdr->sh_size / 4; | |
787 | while (--n_elt != 0) | |
4bba0fb1 AM |
788 | if ((++idx)->shdr != NULL |
789 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 790 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
791 | break; |
792 | if (n_elt != 0) | |
793 | { | |
dbb410c3 AM |
794 | /* Snarf the group name from other member, and |
795 | insert current section in circular list. */ | |
945906ff AM |
796 | elf_group_name (newsect) = elf_group_name (s); |
797 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
798 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
799 | } |
800 | else | |
801 | { | |
dbb410c3 AM |
802 | const char *gname; |
803 | ||
b885599b AM |
804 | gname = group_signature (abfd, shdr); |
805 | if (gname == NULL) | |
b34976b6 | 806 | return FALSE; |
945906ff | 807 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
808 | |
809 | /* Start a circular list with one element. */ | |
945906ff | 810 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 811 | } |
b885599b | 812 | |
9dce4196 AM |
813 | /* If the group section has been created, point to the |
814 | new member. */ | |
dbb410c3 | 815 | if (shdr->bfd_section != NULL) |
945906ff | 816 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 817 | |
564e11c9 JW |
818 | elf_tdata (abfd)->group_search_offset = i; |
819 | j = num_group - 1; | |
dbb410c3 AM |
820 | break; |
821 | } | |
822 | } | |
823 | } | |
824 | ||
945906ff | 825 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 826 | { |
695344c0 | 827 | /* xgettext:c-format */ |
871b3ab2 | 828 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 829 | abfd, newsect); |
493a3386 | 830 | return FALSE; |
dbb410c3 | 831 | } |
b34976b6 | 832 | return TRUE; |
dbb410c3 AM |
833 | } |
834 | ||
3d7f7666 | 835 | bfd_boolean |
dd863624 | 836 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
837 | { |
838 | unsigned int i; | |
839 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
840 | bfd_boolean result = TRUE; | |
dd863624 L |
841 | asection *s; |
842 | ||
843 | /* Process SHF_LINK_ORDER. */ | |
844 | for (s = abfd->sections; s != NULL; s = s->next) | |
845 | { | |
846 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
847 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
848 | { | |
849 | unsigned int elfsec = this_hdr->sh_link; | |
850 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
851 | not set the sh_link or sh_info fields. Hence we could | |
852 | get the situation where elfsec is 0. */ | |
853 | if (elfsec == 0) | |
854 | { | |
4fbb74a6 | 855 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
856 | if (bed->link_order_error_handler) |
857 | bed->link_order_error_handler | |
695344c0 | 858 | /* xgettext:c-format */ |
871b3ab2 | 859 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
860 | abfd, s); |
861 | } | |
862 | else | |
863 | { | |
91d6fa6a | 864 | asection *linksec = NULL; |
25bbc984 | 865 | |
4fbb74a6 AM |
866 | if (elfsec < elf_numsections (abfd)) |
867 | { | |
868 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 869 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 870 | } |
25bbc984 L |
871 | |
872 | /* PR 1991, 2008: | |
873 | Some strip/objcopy may leave an incorrect value in | |
874 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 875 | if (linksec == NULL) |
25bbc984 | 876 | { |
4eca0228 | 877 | _bfd_error_handler |
695344c0 | 878 | /* xgettext:c-format */ |
871b3ab2 | 879 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 880 | s->owner, elfsec, s); |
25bbc984 L |
881 | result = FALSE; |
882 | } | |
883 | ||
91d6fa6a | 884 | elf_linked_to_section (s) = linksec; |
dd863624 L |
885 | } |
886 | } | |
53720c49 AM |
887 | else if (this_hdr->sh_type == SHT_GROUP |
888 | && elf_next_in_group (s) == NULL) | |
889 | { | |
4eca0228 | 890 | _bfd_error_handler |
695344c0 | 891 | /* xgettext:c-format */ |
871b3ab2 | 892 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
893 | abfd, elf_section_data (s)->this_idx); |
894 | result = FALSE; | |
895 | } | |
dd863624 | 896 | } |
3d7f7666 | 897 | |
dd863624 | 898 | /* Process section groups. */ |
3d7f7666 L |
899 | if (num_group == (unsigned) -1) |
900 | return result; | |
901 | ||
902 | for (i = 0; i < num_group; i++) | |
903 | { | |
904 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
905 | Elf_Internal_Group *idx; |
906 | unsigned int n_elt; | |
3d7f7666 | 907 | |
4b0e8a5f NC |
908 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
909 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
910 | { | |
4eca0228 | 911 | _bfd_error_handler |
695344c0 | 912 | /* xgettext:c-format */ |
871b3ab2 | 913 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
914 | abfd, i); |
915 | result = FALSE; | |
916 | continue; | |
917 | } | |
918 | ||
919 | idx = (Elf_Internal_Group *) shdr->contents; | |
920 | n_elt = shdr->sh_size / 4; | |
1b786873 | 921 | |
3d7f7666 | 922 | while (--n_elt != 0) |
24d3e51b NC |
923 | { |
924 | ++ idx; | |
925 | ||
926 | if (idx->shdr == NULL) | |
927 | continue; | |
928 | else if (idx->shdr->bfd_section) | |
929 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
930 | else if (idx->shdr->sh_type != SHT_RELA |
931 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
932 | { |
933 | /* There are some unknown sections in the group. */ | |
934 | _bfd_error_handler | |
935 | /* xgettext:c-format */ | |
871b3ab2 | 936 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
937 | abfd, |
938 | idx->shdr->sh_type, | |
939 | bfd_elf_string_from_elf_section (abfd, | |
940 | (elf_elfheader (abfd) | |
941 | ->e_shstrndx), | |
942 | idx->shdr->sh_name), | |
943 | shdr->bfd_section); | |
944 | result = FALSE; | |
945 | } | |
946 | } | |
3d7f7666 | 947 | } |
24d3e51b | 948 | |
3d7f7666 L |
949 | return result; |
950 | } | |
951 | ||
72adc230 AM |
952 | bfd_boolean |
953 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
954 | { | |
955 | return elf_next_in_group (sec) != NULL; | |
956 | } | |
957 | ||
f6fe1ccd L |
958 | static char * |
959 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
960 | { | |
961 | unsigned int len = strlen (name); | |
962 | char *new_name = bfd_alloc (abfd, len + 2); | |
963 | if (new_name == NULL) | |
964 | return NULL; | |
965 | new_name[0] = '.'; | |
966 | new_name[1] = 'z'; | |
967 | memcpy (new_name + 2, name + 1, len); | |
968 | return new_name; | |
969 | } | |
970 | ||
971 | static char * | |
972 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
973 | { | |
974 | unsigned int len = strlen (name); | |
975 | char *new_name = bfd_alloc (abfd, len); | |
976 | if (new_name == NULL) | |
977 | return NULL; | |
978 | new_name[0] = '.'; | |
979 | memcpy (new_name + 1, name + 2, len - 1); | |
980 | return new_name; | |
981 | } | |
982 | ||
252b5132 RH |
983 | /* Make a BFD section from an ELF section. We store a pointer to the |
984 | BFD section in the bfd_section field of the header. */ | |
985 | ||
b34976b6 | 986 | bfd_boolean |
217aa764 AM |
987 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
988 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
989 | const char *name, |
990 | int shindex) | |
252b5132 RH |
991 | { |
992 | asection *newsect; | |
993 | flagword flags; | |
9c5bfbb7 | 994 | const struct elf_backend_data *bed; |
252b5132 RH |
995 | |
996 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 997 | return TRUE; |
252b5132 RH |
998 | |
999 | newsect = bfd_make_section_anyway (abfd, name); | |
1000 | if (newsect == NULL) | |
b34976b6 | 1001 | return FALSE; |
252b5132 | 1002 | |
1829f4b2 AM |
1003 | hdr->bfd_section = newsect; |
1004 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1005 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1006 | |
2f89ff8d L |
1007 | /* Always use the real type/flags. */ |
1008 | elf_section_type (newsect) = hdr->sh_type; | |
1009 | elf_section_flags (newsect) = hdr->sh_flags; | |
1010 | ||
252b5132 RH |
1011 | newsect->filepos = hdr->sh_offset; |
1012 | ||
1013 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
1014 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
1015 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 1016 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 1017 | return FALSE; |
252b5132 RH |
1018 | |
1019 | flags = SEC_NO_FLAGS; | |
1020 | if (hdr->sh_type != SHT_NOBITS) | |
1021 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1022 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1023 | flags |= SEC_GROUP; |
252b5132 RH |
1024 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1025 | { | |
1026 | flags |= SEC_ALLOC; | |
1027 | if (hdr->sh_type != SHT_NOBITS) | |
1028 | flags |= SEC_LOAD; | |
1029 | } | |
1030 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1031 | flags |= SEC_READONLY; | |
1032 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1033 | flags |= SEC_CODE; | |
1034 | else if ((flags & SEC_LOAD) != 0) | |
1035 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1036 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1037 | { | |
1038 | flags |= SEC_MERGE; | |
1039 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1040 | } |
84865015 NC |
1041 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1042 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1043 | if (hdr->sh_flags & SHF_GROUP) |
1044 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1045 | return FALSE; |
13ae64f3 JJ |
1046 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1047 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1048 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1049 | flags |= SEC_EXCLUDE; | |
252b5132 | 1050 | |
3d2b39cf | 1051 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1052 | { |
3d2b39cf L |
1053 | /* The debugging sections appear to be recognized only by name, |
1054 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1055 | if (name [0] == '.') |
1056 | { | |
f073ced3 AM |
1057 | const char *p; |
1058 | int n; | |
1059 | if (name[1] == 'd') | |
1060 | p = ".debug", n = 6; | |
1061 | else if (name[1] == 'g' && name[2] == 'n') | |
1062 | p = ".gnu.linkonce.wi.", n = 17; | |
1063 | else if (name[1] == 'g' && name[2] == 'd') | |
1064 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1065 | else if (name[1] == 'l') | |
1066 | p = ".line", n = 5; | |
1067 | else if (name[1] == 's') | |
1068 | p = ".stab", n = 5; | |
1069 | else if (name[1] == 'z') | |
1070 | p = ".zdebug", n = 7; | |
1071 | else | |
1072 | p = NULL, n = 0; | |
1073 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1074 | flags |= SEC_DEBUGGING; |
1075 | } | |
1076 | } | |
252b5132 RH |
1077 | |
1078 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1079 | only link a single copy of the section. This is used to support | |
1080 | g++. g++ will emit each template expansion in its own section. | |
1081 | The symbols will be defined as weak, so that multiple definitions | |
1082 | are permitted. The GNU linker extension is to actually discard | |
1083 | all but one of the sections. */ | |
0112cd26 | 1084 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1085 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1086 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1087 | ||
fa152c49 JW |
1088 | bed = get_elf_backend_data (abfd); |
1089 | if (bed->elf_backend_section_flags) | |
1090 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1091 | return FALSE; |
fa152c49 | 1092 | |
252b5132 | 1093 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 1094 | return FALSE; |
252b5132 | 1095 | |
718175fa JK |
1096 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1097 | separate debug info files which may have the segments offsets corrupted. | |
1098 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1099 | if (hdr->sh_type == SHT_NOTE) | |
1100 | { | |
baea7ef1 | 1101 | bfd_byte *contents; |
718175fa | 1102 | |
baea7ef1 | 1103 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1104 | return FALSE; |
1105 | ||
276da9b3 L |
1106 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1107 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1108 | free (contents); |
1109 | } | |
1110 | ||
252b5132 RH |
1111 | if ((flags & SEC_ALLOC) != 0) |
1112 | { | |
1113 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1114 | unsigned int i, nload; |
1115 | ||
1116 | /* Some ELF linkers produce binaries with all the program header | |
1117 | p_paddr fields zero. If we have such a binary with more than | |
1118 | one PT_LOAD header, then leave the section lma equal to vma | |
1119 | so that we don't create sections with overlapping lma. */ | |
1120 | phdr = elf_tdata (abfd)->phdr; | |
1121 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1122 | if (phdr->p_paddr != 0) | |
1123 | break; | |
1124 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1125 | ++nload; | |
1126 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1127 | return TRUE; | |
252b5132 | 1128 | |
252b5132 RH |
1129 | phdr = elf_tdata (abfd)->phdr; |
1130 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1131 | { | |
86b2281f AM |
1132 | if (((phdr->p_type == PT_LOAD |
1133 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1134 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1135 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1136 | { |
88967714 AM |
1137 | if ((flags & SEC_LOAD) == 0) |
1138 | newsect->lma = (phdr->p_paddr | |
1139 | + hdr->sh_addr - phdr->p_vaddr); | |
1140 | else | |
1141 | /* We used to use the same adjustment for SEC_LOAD | |
1142 | sections, but that doesn't work if the segment | |
1143 | is packed with code from multiple VMAs. | |
1144 | Instead we calculate the section LMA based on | |
1145 | the segment LMA. It is assumed that the | |
1146 | segment will contain sections with contiguous | |
1147 | LMAs, even if the VMAs are not. */ | |
1148 | newsect->lma = (phdr->p_paddr | |
1149 | + hdr->sh_offset - phdr->p_offset); | |
1150 | ||
1151 | /* With contiguous segments, we can't tell from file | |
1152 | offsets whether a section with zero size should | |
1153 | be placed at the end of one segment or the | |
1154 | beginning of the next. Decide based on vaddr. */ | |
1155 | if (hdr->sh_addr >= phdr->p_vaddr | |
1156 | && (hdr->sh_addr + hdr->sh_size | |
1157 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1158 | break; | |
252b5132 RH |
1159 | } |
1160 | } | |
1161 | } | |
1162 | ||
4a114e3e L |
1163 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1164 | .zdebug_*, after the section flags is set. */ | |
1165 | if ((flags & SEC_DEBUGGING) | |
1166 | && ((name[1] == 'd' && name[6] == '_') | |
1167 | || (name[1] == 'z' && name[7] == '_'))) | |
1168 | { | |
1169 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1170 | int compression_header_size; |
dab394de | 1171 | bfd_size_type uncompressed_size; |
151411f8 L |
1172 | bfd_boolean compressed |
1173 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de L |
1174 | &compression_header_size, |
1175 | &uncompressed_size); | |
4a114e3e | 1176 | |
151411f8 | 1177 | if (compressed) |
4a114e3e L |
1178 | { |
1179 | /* Compressed section. Check if we should decompress. */ | |
1180 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1181 | action = decompress; | |
1182 | } | |
151411f8 L |
1183 | |
1184 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1185 | section. Check if we should compress. */ | |
1186 | if (action == nothing) | |
4a114e3e | 1187 | { |
151411f8 L |
1188 | if (newsect->size != 0 |
1189 | && (abfd->flags & BFD_COMPRESS) | |
1190 | && compression_header_size >= 0 | |
dab394de | 1191 | && uncompressed_size > 0 |
151411f8 L |
1192 | && (!compressed |
1193 | || ((compression_header_size > 0) | |
1194 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1195 | action = compress; |
151411f8 L |
1196 | else |
1197 | return TRUE; | |
4a114e3e L |
1198 | } |
1199 | ||
151411f8 | 1200 | if (action == compress) |
4a114e3e | 1201 | { |
4a114e3e L |
1202 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1203 | { | |
4eca0228 | 1204 | _bfd_error_handler |
695344c0 | 1205 | /* xgettext:c-format */ |
871b3ab2 | 1206 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1207 | abfd, name); |
1208 | return FALSE; | |
1209 | } | |
151411f8 L |
1210 | } |
1211 | else | |
1212 | { | |
4a114e3e L |
1213 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1214 | { | |
4eca0228 | 1215 | _bfd_error_handler |
695344c0 | 1216 | /* xgettext:c-format */ |
871b3ab2 | 1217 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1218 | abfd, name); |
1219 | return FALSE; | |
1220 | } | |
151411f8 L |
1221 | } |
1222 | ||
f6fe1ccd | 1223 | if (abfd->is_linker_input) |
151411f8 | 1224 | { |
f6fe1ccd L |
1225 | if (name[1] == 'z' |
1226 | && (action == decompress | |
1227 | || (action == compress | |
1228 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1229 | { |
f6fe1ccd L |
1230 | /* Convert section name from .zdebug_* to .debug_* so |
1231 | that linker will consider this section as a debug | |
1232 | section. */ | |
1233 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1234 | if (new_name == NULL) |
1235 | return FALSE; | |
f6fe1ccd | 1236 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1237 | } |
4a114e3e | 1238 | } |
f6fe1ccd L |
1239 | else |
1240 | /* For objdump, don't rename the section. For objcopy, delay | |
1241 | section rename to elf_fake_sections. */ | |
1242 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1243 | } |
1244 | ||
b34976b6 | 1245 | return TRUE; |
252b5132 RH |
1246 | } |
1247 | ||
84865015 NC |
1248 | const char *const bfd_elf_section_type_names[] = |
1249 | { | |
252b5132 RH |
1250 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1251 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1252 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1253 | }; | |
1254 | ||
1049f94e | 1255 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1256 | output, and the reloc is against an external symbol, and nothing |
1257 | has given us any additional addend, the resulting reloc will also | |
1258 | be against the same symbol. In such a case, we don't want to | |
1259 | change anything about the way the reloc is handled, since it will | |
1260 | all be done at final link time. Rather than put special case code | |
1261 | into bfd_perform_relocation, all the reloc types use this howto | |
1262 | function. It just short circuits the reloc if producing | |
1049f94e | 1263 | relocatable output against an external symbol. */ |
252b5132 | 1264 | |
252b5132 | 1265 | bfd_reloc_status_type |
217aa764 AM |
1266 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1267 | arelent *reloc_entry, | |
1268 | asymbol *symbol, | |
1269 | void *data ATTRIBUTE_UNUSED, | |
1270 | asection *input_section, | |
1271 | bfd *output_bfd, | |
1272 | char **error_message ATTRIBUTE_UNUSED) | |
1273 | { | |
1274 | if (output_bfd != NULL | |
252b5132 RH |
1275 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1276 | && (! reloc_entry->howto->partial_inplace | |
1277 | || reloc_entry->addend == 0)) | |
1278 | { | |
1279 | reloc_entry->address += input_section->output_offset; | |
1280 | return bfd_reloc_ok; | |
1281 | } | |
1282 | ||
1283 | return bfd_reloc_continue; | |
1284 | } | |
1285 | \f | |
84865015 NC |
1286 | /* Returns TRUE if section A matches section B. |
1287 | Names, addresses and links may be different, but everything else | |
1288 | should be the same. */ | |
1289 | ||
1290 | static bfd_boolean | |
5522f910 NC |
1291 | section_match (const Elf_Internal_Shdr * a, |
1292 | const Elf_Internal_Shdr * b) | |
84865015 NC |
1293 | { |
1294 | return | |
07d6d2b8 | 1295 | a->sh_type == b->sh_type |
5522f910 NC |
1296 | && (a->sh_flags & ~ SHF_INFO_LINK) |
1297 | == (b->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1298 | && a->sh_addralign == b->sh_addralign |
1299 | && a->sh_size == b->sh_size | |
1300 | && a->sh_entsize == b->sh_entsize | |
1301 | /* FIXME: Check sh_addr ? */ | |
1302 | ; | |
1303 | } | |
1304 | ||
1305 | /* Find a section in OBFD that has the same characteristics | |
1306 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1307 | none can be found. Check's section HINT first, as this is likely | |
1308 | to be the correct section. */ | |
1309 | ||
1310 | static unsigned int | |
5cc4ca83 ST |
1311 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1312 | const unsigned int hint) | |
84865015 NC |
1313 | { |
1314 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1315 | unsigned int i; | |
1316 | ||
a55c9876 NC |
1317 | BFD_ASSERT (iheader != NULL); |
1318 | ||
1319 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1320 | if (hint < elf_numsections (obfd) |
1321 | && oheaders[hint] != NULL | |
a55c9876 | 1322 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1323 | return hint; |
1324 | ||
1325 | for (i = 1; i < elf_numsections (obfd); i++) | |
1326 | { | |
1327 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1328 | ||
a55c9876 NC |
1329 | if (oheader == NULL) |
1330 | continue; | |
84865015 NC |
1331 | if (section_match (oheader, iheader)) |
1332 | /* FIXME: Do we care if there is a potential for | |
1333 | multiple matches ? */ | |
1334 | return i; | |
1335 | } | |
1336 | ||
1337 | return SHN_UNDEF; | |
1338 | } | |
1339 | ||
5522f910 NC |
1340 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1341 | Processor specific section, based upon a matching input section. | |
1342 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1343 | |
5522f910 NC |
1344 | static bfd_boolean |
1345 | copy_special_section_fields (const bfd *ibfd, | |
1346 | bfd *obfd, | |
1347 | const Elf_Internal_Shdr *iheader, | |
1348 | Elf_Internal_Shdr *oheader, | |
1349 | const unsigned int secnum) | |
1350 | { | |
1351 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1352 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1353 | bfd_boolean changed = FALSE; | |
1354 | unsigned int sh_link; | |
1355 | ||
1356 | if (oheader->sh_type == SHT_NOBITS) | |
1357 | { | |
1358 | /* This is a feature for objcopy --only-keep-debug: | |
1359 | When a section's type is changed to NOBITS, we preserve | |
1360 | the sh_link and sh_info fields so that they can be | |
1361 | matched up with the original. | |
1362 | ||
1363 | Note: Strictly speaking these assignments are wrong. | |
1364 | The sh_link and sh_info fields should point to the | |
1365 | relevent sections in the output BFD, which may not be in | |
1366 | the same location as they were in the input BFD. But | |
1367 | the whole point of this action is to preserve the | |
1368 | original values of the sh_link and sh_info fields, so | |
1369 | that they can be matched up with the section headers in | |
1370 | the original file. So strictly speaking we may be | |
1371 | creating an invalid ELF file, but it is only for a file | |
1372 | that just contains debug info and only for sections | |
1373 | without any contents. */ | |
1374 | if (oheader->sh_link == 0) | |
1375 | oheader->sh_link = iheader->sh_link; | |
1376 | if (oheader->sh_info == 0) | |
1377 | oheader->sh_info = iheader->sh_info; | |
1378 | return TRUE; | |
1379 | } | |
1380 | ||
1381 | /* Allow the target a chance to decide how these fields should be set. */ | |
1382 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1383 | && bed->elf_backend_copy_special_section_fields | |
1384 | (ibfd, obfd, iheader, oheader)) | |
1385 | return TRUE; | |
1386 | ||
1387 | /* We have an iheader which might match oheader, and which has non-zero | |
1388 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1389 | the section in the output bfd which corresponds to the linked section | |
1390 | in the input bfd. */ | |
1391 | if (iheader->sh_link != SHN_UNDEF) | |
1392 | { | |
4f3ca05b NC |
1393 | /* See PR 20931 for a reproducer. */ |
1394 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1395 | { | |
76cfced5 | 1396 | _bfd_error_handler |
4f3ca05b | 1397 | /* xgettext:c-format */ |
9793eb77 | 1398 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1399 | ibfd, iheader->sh_link, secnum); |
1400 | return FALSE; | |
1401 | } | |
1402 | ||
5522f910 NC |
1403 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1404 | if (sh_link != SHN_UNDEF) | |
1405 | { | |
1406 | oheader->sh_link = sh_link; | |
1407 | changed = TRUE; | |
1408 | } | |
1409 | else | |
1410 | /* FIXME: Should we install iheader->sh_link | |
1411 | if we could not find a match ? */ | |
76cfced5 | 1412 | _bfd_error_handler |
695344c0 | 1413 | /* xgettext:c-format */ |
9793eb77 | 1414 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1415 | } |
1416 | ||
1417 | if (iheader->sh_info) | |
1418 | { | |
1419 | /* The sh_info field can hold arbitrary information, but if the | |
1420 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1421 | section index. */ | |
1422 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1423 | { | |
1424 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1425 | iheader->sh_info); | |
1426 | if (sh_link != SHN_UNDEF) | |
1427 | oheader->sh_flags |= SHF_INFO_LINK; | |
1428 | } | |
1429 | else | |
1430 | /* No idea what it means - just copy it. */ | |
1431 | sh_link = iheader->sh_info; | |
1432 | ||
1433 | if (sh_link != SHN_UNDEF) | |
1434 | { | |
1435 | oheader->sh_info = sh_link; | |
1436 | changed = TRUE; | |
1437 | } | |
1438 | else | |
76cfced5 | 1439 | _bfd_error_handler |
695344c0 | 1440 | /* xgettext:c-format */ |
9793eb77 | 1441 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1442 | } |
1443 | ||
1444 | return changed; | |
1445 | } | |
07d6d2b8 | 1446 | |
0ac4564e L |
1447 | /* Copy the program header and other data from one object module to |
1448 | another. */ | |
252b5132 | 1449 | |
b34976b6 | 1450 | bfd_boolean |
217aa764 | 1451 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1452 | { |
5522f910 NC |
1453 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1454 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1455 | const struct elf_backend_data *bed; | |
84865015 NC |
1456 | unsigned int i; |
1457 | ||
2d502050 | 1458 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1459 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1460 | return TRUE; |
2d502050 | 1461 | |
57b828ef L |
1462 | if (!elf_flags_init (obfd)) |
1463 | { | |
1464 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1465 | elf_flags_init (obfd) = TRUE; | |
1466 | } | |
2d502050 | 1467 | |
0ac4564e | 1468 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1469 | |
1470 | /* Also copy the EI_OSABI field. */ | |
1471 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1472 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1473 | |
5522f910 NC |
1474 | /* If set, copy the EI_ABIVERSION field. */ |
1475 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1476 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1477 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1478 | |
104d59d1 JM |
1479 | /* Copy object attributes. */ |
1480 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1481 | |
84865015 NC |
1482 | if (iheaders == NULL || oheaders == NULL) |
1483 | return TRUE; | |
63b9bbb7 | 1484 | |
5522f910 NC |
1485 | bed = get_elf_backend_data (obfd); |
1486 | ||
1487 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1488 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1489 | { |
84865015 NC |
1490 | unsigned int j; |
1491 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1492 | |
5522f910 NC |
1493 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1494 | because of a special case need for generating separate debug info | |
1495 | files. See below for more details. */ | |
84865015 NC |
1496 | if (oheader == NULL |
1497 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1498 | && oheader->sh_type < SHT_LOOS)) |
1499 | continue; | |
1500 | ||
1501 | /* Ignore empty sections, and sections whose | |
1502 | fields have already been initialised. */ | |
1503 | if (oheader->sh_size == 0 | |
84865015 NC |
1504 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1505 | continue; | |
63b9bbb7 | 1506 | |
84865015 | 1507 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1508 | First we try for a direct mapping between the input and output sections. */ |
1509 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1510 | { | |
1511 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1512 | ||
1513 | if (iheader == NULL) | |
1514 | continue; | |
1515 | ||
1516 | if (oheader->bfd_section != NULL | |
1517 | && iheader->bfd_section != NULL | |
1518 | && iheader->bfd_section->output_section != NULL | |
1519 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1520 | { | |
1521 | /* We have found a connection from the input section to the | |
1522 | output section. Attempt to copy the header fields. If | |
1523 | this fails then do not try any further sections - there | |
1524 | should only be a one-to-one mapping between input and output. */ | |
1525 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1526 | j = elf_numsections (ibfd); | |
1527 | break; | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | if (j < elf_numsections (ibfd)) | |
1532 | continue; | |
1533 | ||
1534 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1535 | Unfortunately we cannot compare names as the output string table |
1536 | is empty, so instead we check size, address and type. */ | |
1537 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1538 | { | |
5522f910 | 1539 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1540 | |
5522f910 NC |
1541 | if (iheader == NULL) |
1542 | continue; | |
1543 | ||
1544 | /* Try matching fields in the input section's header. | |
1545 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1546 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1547 | input type. */ | |
1548 | if ((oheader->sh_type == SHT_NOBITS | |
1549 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1550 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1551 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1552 | && iheader->sh_addralign == oheader->sh_addralign |
1553 | && iheader->sh_entsize == oheader->sh_entsize | |
1554 | && iheader->sh_size == oheader->sh_size | |
1555 | && iheader->sh_addr == oheader->sh_addr | |
1556 | && (iheader->sh_info != oheader->sh_info | |
1557 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1558 | { |
5522f910 NC |
1559 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1560 | break; | |
63b9bbb7 NC |
1561 | } |
1562 | } | |
5522f910 NC |
1563 | |
1564 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1565 | { | |
1566 | /* Final attempt. Call the backend copy function | |
1567 | with a NULL input section. */ | |
1568 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1569 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1570 | } | |
63b9bbb7 NC |
1571 | } |
1572 | ||
b34976b6 | 1573 | return TRUE; |
2d502050 L |
1574 | } |
1575 | ||
cedc298e L |
1576 | static const char * |
1577 | get_segment_type (unsigned int p_type) | |
1578 | { | |
1579 | const char *pt; | |
1580 | switch (p_type) | |
1581 | { | |
1582 | case PT_NULL: pt = "NULL"; break; | |
1583 | case PT_LOAD: pt = "LOAD"; break; | |
1584 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1585 | case PT_INTERP: pt = "INTERP"; break; | |
1586 | case PT_NOTE: pt = "NOTE"; break; | |
1587 | case PT_SHLIB: pt = "SHLIB"; break; | |
1588 | case PT_PHDR: pt = "PHDR"; break; | |
1589 | case PT_TLS: pt = "TLS"; break; | |
1590 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1591 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1592 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1593 | default: pt = NULL; break; | |
1594 | } | |
1595 | return pt; | |
1596 | } | |
1597 | ||
f0b79d91 L |
1598 | /* Print out the program headers. */ |
1599 | ||
b34976b6 | 1600 | bfd_boolean |
217aa764 | 1601 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1602 | { |
a50b1753 | 1603 | FILE *f = (FILE *) farg; |
252b5132 RH |
1604 | Elf_Internal_Phdr *p; |
1605 | asection *s; | |
1606 | bfd_byte *dynbuf = NULL; | |
1607 | ||
1608 | p = elf_tdata (abfd)->phdr; | |
1609 | if (p != NULL) | |
1610 | { | |
1611 | unsigned int i, c; | |
1612 | ||
1613 | fprintf (f, _("\nProgram Header:\n")); | |
1614 | c = elf_elfheader (abfd)->e_phnum; | |
1615 | for (i = 0; i < c; i++, p++) | |
1616 | { | |
cedc298e | 1617 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1618 | char buf[20]; |
1619 | ||
cedc298e | 1620 | if (pt == NULL) |
252b5132 | 1621 | { |
cedc298e L |
1622 | sprintf (buf, "0x%lx", p->p_type); |
1623 | pt = buf; | |
252b5132 | 1624 | } |
dc810e39 | 1625 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1626 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1627 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1628 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1629 | fprintf (f, " paddr 0x"); |
60b89a18 | 1630 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1631 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1632 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1633 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1634 | fprintf (f, " memsz 0x"); |
60b89a18 | 1635 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1636 | fprintf (f, " flags %c%c%c", |
1637 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1638 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1639 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1640 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1641 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1642 | fprintf (f, "\n"); |
1643 | } | |
1644 | } | |
1645 | ||
1646 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1647 | if (s != NULL) | |
1648 | { | |
cb33740c | 1649 | unsigned int elfsec; |
dc810e39 | 1650 | unsigned long shlink; |
252b5132 RH |
1651 | bfd_byte *extdyn, *extdynend; |
1652 | size_t extdynsize; | |
217aa764 | 1653 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1654 | |
1655 | fprintf (f, _("\nDynamic Section:\n")); | |
1656 | ||
eea6121a | 1657 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1658 | goto error_return; |
1659 | ||
1660 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1661 | if (elfsec == SHN_BAD) |
252b5132 | 1662 | goto error_return; |
dc810e39 | 1663 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1664 | |
1665 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1666 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1667 | ||
1668 | extdyn = dynbuf; | |
06614111 NC |
1669 | /* PR 17512: file: 6f427532. */ |
1670 | if (s->size < extdynsize) | |
1671 | goto error_return; | |
eea6121a | 1672 | extdynend = extdyn + s->size; |
1036838a | 1673 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1674 | Fix range check. */ |
1036838a | 1675 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1676 | { |
1677 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1678 | const char *name = ""; |
252b5132 | 1679 | char ab[20]; |
b34976b6 | 1680 | bfd_boolean stringp; |
ad9563d6 | 1681 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1682 | |
217aa764 | 1683 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1684 | |
1685 | if (dyn.d_tag == DT_NULL) | |
1686 | break; | |
1687 | ||
b34976b6 | 1688 | stringp = FALSE; |
252b5132 RH |
1689 | switch (dyn.d_tag) |
1690 | { | |
1691 | default: | |
ad9563d6 CM |
1692 | if (bed->elf_backend_get_target_dtag) |
1693 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1694 | ||
1695 | if (!strcmp (name, "")) | |
1696 | { | |
cd9af601 | 1697 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1698 | name = ab; |
1699 | } | |
252b5132 RH |
1700 | break; |
1701 | ||
b34976b6 | 1702 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1703 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1704 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1705 | case DT_HASH: name = "HASH"; break; | |
1706 | case DT_STRTAB: name = "STRTAB"; break; | |
1707 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1708 | case DT_RELA: name = "RELA"; break; | |
1709 | case DT_RELASZ: name = "RELASZ"; break; | |
1710 | case DT_RELAENT: name = "RELAENT"; break; | |
1711 | case DT_STRSZ: name = "STRSZ"; break; | |
1712 | case DT_SYMENT: name = "SYMENT"; break; | |
1713 | case DT_INIT: name = "INIT"; break; | |
1714 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1715 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1716 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1717 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1718 | case DT_REL: name = "REL"; break; | |
1719 | case DT_RELSZ: name = "RELSZ"; break; | |
1720 | case DT_RELENT: name = "RELENT"; break; | |
1721 | case DT_PLTREL: name = "PLTREL"; break; | |
1722 | case DT_DEBUG: name = "DEBUG"; break; | |
1723 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1724 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1725 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1726 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1727 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1728 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1729 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1730 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1731 | case DT_FLAGS: name = "FLAGS"; break; |
1732 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1733 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1734 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1735 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1736 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1737 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1738 | case DT_FEATURE: name = "FEATURE"; break; | |
1739 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1740 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1741 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1742 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1743 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1744 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1745 | case DT_PLTPAD: name = "PLTPAD"; break; |
1746 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1747 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1748 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1749 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1750 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1751 | case DT_VERSYM: name = "VERSYM"; break; |
1752 | case DT_VERDEF: name = "VERDEF"; break; | |
1753 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1754 | case DT_VERNEED: name = "VERNEED"; break; | |
1755 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1756 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1757 | case DT_USED: name = "USED"; break; |
b34976b6 | 1758 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1759 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1760 | } |
1761 | ||
ad9563d6 | 1762 | fprintf (f, " %-20s ", name); |
252b5132 | 1763 | if (! stringp) |
a1f3c56e AN |
1764 | { |
1765 | fprintf (f, "0x"); | |
1766 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1767 | } | |
252b5132 RH |
1768 | else |
1769 | { | |
1770 | const char *string; | |
dc810e39 | 1771 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1772 | |
dc810e39 | 1773 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1774 | if (string == NULL) |
1775 | goto error_return; | |
1776 | fprintf (f, "%s", string); | |
1777 | } | |
1778 | fprintf (f, "\n"); | |
1779 | } | |
1780 | ||
1781 | free (dynbuf); | |
1782 | dynbuf = NULL; | |
1783 | } | |
1784 | ||
1785 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1786 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1787 | { | |
fc0e6df6 | 1788 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1789 | return FALSE; |
252b5132 RH |
1790 | } |
1791 | ||
1792 | if (elf_dynverdef (abfd) != 0) | |
1793 | { | |
1794 | Elf_Internal_Verdef *t; | |
1795 | ||
1796 | fprintf (f, _("\nVersion definitions:\n")); | |
1797 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1798 | { | |
1799 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1800 | t->vd_flags, t->vd_hash, |
1801 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1802 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1803 | { |
1804 | Elf_Internal_Verdaux *a; | |
1805 | ||
1806 | fprintf (f, "\t"); | |
1807 | for (a = t->vd_auxptr->vda_nextptr; | |
1808 | a != NULL; | |
1809 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1810 | fprintf (f, "%s ", |
1811 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1812 | fprintf (f, "\n"); |
1813 | } | |
1814 | } | |
1815 | } | |
1816 | ||
1817 | if (elf_dynverref (abfd) != 0) | |
1818 | { | |
1819 | Elf_Internal_Verneed *t; | |
1820 | ||
1821 | fprintf (f, _("\nVersion References:\n")); | |
1822 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1823 | { | |
1824 | Elf_Internal_Vernaux *a; | |
1825 | ||
d0fb9a8d JJ |
1826 | fprintf (f, _(" required from %s:\n"), |
1827 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1828 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1829 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1830 | a->vna_flags, a->vna_other, |
1831 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1832 | } |
1833 | } | |
1834 | ||
b34976b6 | 1835 | return TRUE; |
252b5132 RH |
1836 | |
1837 | error_return: | |
1838 | if (dynbuf != NULL) | |
1839 | free (dynbuf); | |
b34976b6 | 1840 | return FALSE; |
252b5132 RH |
1841 | } |
1842 | ||
bb4d2ac2 L |
1843 | /* Get version string. */ |
1844 | ||
1845 | const char * | |
60bb06bc L |
1846 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1847 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1848 | { |
1849 | const char *version_string = NULL; | |
1850 | if (elf_dynversym (abfd) != 0 | |
1851 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1852 | { | |
1853 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1854 | ||
1855 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1856 | vernum &= VERSYM_VERSION; | |
1857 | ||
1858 | if (vernum == 0) | |
1859 | version_string = ""; | |
1860 | else if (vernum == 1) | |
1861 | version_string = "Base"; | |
1862 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1863 | version_string = | |
1864 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1865 | else | |
1866 | { | |
1867 | Elf_Internal_Verneed *t; | |
1868 | ||
1869 | version_string = ""; | |
1870 | for (t = elf_tdata (abfd)->verref; | |
1871 | t != NULL; | |
1872 | t = t->vn_nextref) | |
1873 | { | |
1874 | Elf_Internal_Vernaux *a; | |
1875 | ||
1876 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1877 | { | |
1878 | if (a->vna_other == vernum) | |
1879 | { | |
1880 | version_string = a->vna_nodename; | |
1881 | break; | |
1882 | } | |
1883 | } | |
1884 | } | |
1885 | } | |
1886 | } | |
1887 | return version_string; | |
1888 | } | |
1889 | ||
252b5132 RH |
1890 | /* Display ELF-specific fields of a symbol. */ |
1891 | ||
1892 | void | |
217aa764 AM |
1893 | bfd_elf_print_symbol (bfd *abfd, |
1894 | void *filep, | |
1895 | asymbol *symbol, | |
1896 | bfd_print_symbol_type how) | |
252b5132 | 1897 | { |
a50b1753 | 1898 | FILE *file = (FILE *) filep; |
252b5132 RH |
1899 | switch (how) |
1900 | { | |
1901 | case bfd_print_symbol_name: | |
1902 | fprintf (file, "%s", symbol->name); | |
1903 | break; | |
1904 | case bfd_print_symbol_more: | |
1905 | fprintf (file, "elf "); | |
60b89a18 | 1906 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1907 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1908 | break; |
1909 | case bfd_print_symbol_all: | |
1910 | { | |
4e8a9624 AM |
1911 | const char *section_name; |
1912 | const char *name = NULL; | |
9c5bfbb7 | 1913 | const struct elf_backend_data *bed; |
7a13edea | 1914 | unsigned char st_other; |
dbb410c3 | 1915 | bfd_vma val; |
bb4d2ac2 L |
1916 | const char *version_string; |
1917 | bfd_boolean hidden; | |
c044fabd | 1918 | |
252b5132 | 1919 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1920 | |
1921 | bed = get_elf_backend_data (abfd); | |
1922 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1923 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1924 | |
1925 | if (name == NULL) | |
1926 | { | |
7ee38065 | 1927 | name = symbol->name; |
217aa764 | 1928 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1929 | } |
1930 | ||
252b5132 RH |
1931 | fprintf (file, " %s\t", section_name); |
1932 | /* Print the "other" value for a symbol. For common symbols, | |
1933 | we've already printed the size; now print the alignment. | |
1934 | For other symbols, we have no specified alignment, and | |
1935 | we've printed the address; now print the size. */ | |
dcf6c779 | 1936 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1937 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1938 | else | |
1939 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1940 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1941 | |
1942 | /* If we have version information, print it. */ | |
60bb06bc L |
1943 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1944 | symbol, | |
1945 | &hidden); | |
bb4d2ac2 | 1946 | if (version_string) |
252b5132 | 1947 | { |
bb4d2ac2 | 1948 | if (!hidden) |
252b5132 RH |
1949 | fprintf (file, " %-11s", version_string); |
1950 | else | |
1951 | { | |
1952 | int i; | |
1953 | ||
1954 | fprintf (file, " (%s)", version_string); | |
1955 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1956 | putc (' ', file); | |
1957 | } | |
1958 | } | |
1959 | ||
1960 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1961 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1962 | |
7a13edea NC |
1963 | switch (st_other) |
1964 | { | |
1965 | case 0: break; | |
1966 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1967 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1968 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1969 | default: | |
1970 | /* Some other non-defined flags are also present, so print | |
1971 | everything hex. */ | |
1972 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1973 | } | |
252b5132 | 1974 | |
587ff49e | 1975 | fprintf (file, " %s", name); |
252b5132 RH |
1976 | } |
1977 | break; | |
1978 | } | |
1979 | } | |
252b5132 RH |
1980 | \f |
1981 | /* ELF .o/exec file reading */ | |
1982 | ||
c044fabd | 1983 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1984 | |
b34976b6 | 1985 | bfd_boolean |
217aa764 | 1986 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1987 | { |
4fbb74a6 AM |
1988 | Elf_Internal_Shdr *hdr; |
1989 | Elf_Internal_Ehdr *ehdr; | |
1990 | const struct elf_backend_data *bed; | |
90937f86 | 1991 | const char *name; |
bf67003b NC |
1992 | bfd_boolean ret = TRUE; |
1993 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 1994 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 1995 | static unsigned int nesting = 0; |
252b5132 | 1996 | |
4fbb74a6 AM |
1997 | if (shindex >= elf_numsections (abfd)) |
1998 | return FALSE; | |
1999 | ||
bf67003b NC |
2000 | if (++ nesting > 3) |
2001 | { | |
2002 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
06614111 | 2003 | sections, with each the string indicies pointing to the next in the |
bf67003b NC |
2004 | loop. Detect this here, by refusing to load a section that we are |
2005 | already in the process of loading. We only trigger this test if | |
2006 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2007 | can expect to recurse at least once. |
2008 | ||
2009 | FIXME: It would be better if this array was attached to the bfd, | |
2010 | rather than being held in a static pointer. */ | |
2011 | ||
2012 | if (sections_being_created_abfd != abfd) | |
2013 | sections_being_created = NULL; | |
bf67003b NC |
2014 | if (sections_being_created == NULL) |
2015 | { | |
2016 | /* FIXME: It would be more efficient to attach this array to the bfd somehow. */ | |
2017 | sections_being_created = (bfd_boolean *) | |
2018 | bfd_zalloc (abfd, elf_numsections (abfd) * sizeof (bfd_boolean)); | |
5a4b0ccc | 2019 | sections_being_created_abfd = abfd; |
bf67003b NC |
2020 | } |
2021 | if (sections_being_created [shindex]) | |
2022 | { | |
4eca0228 | 2023 | _bfd_error_handler |
871b3ab2 | 2024 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2025 | return FALSE; |
2026 | } | |
2027 | sections_being_created [shindex] = TRUE; | |
2028 | } | |
2029 | ||
4fbb74a6 AM |
2030 | hdr = elf_elfsections (abfd)[shindex]; |
2031 | ehdr = elf_elfheader (abfd); | |
2032 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2033 | hdr->sh_name); |
933d961a | 2034 | if (name == NULL) |
bf67003b | 2035 | goto fail; |
252b5132 | 2036 | |
4fbb74a6 | 2037 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2038 | switch (hdr->sh_type) |
2039 | { | |
2040 | case SHT_NULL: | |
2041 | /* Inactive section. Throw it away. */ | |
bf67003b | 2042 | goto success; |
252b5132 | 2043 | |
bf67003b NC |
2044 | case SHT_PROGBITS: /* Normal section with contents. */ |
2045 | case SHT_NOBITS: /* .bss section. */ | |
2046 | case SHT_HASH: /* .hash section. */ | |
2047 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2048 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2049 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2050 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2051 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2052 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2053 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2054 | goto success; | |
252b5132 | 2055 | |
797fc050 | 2056 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2057 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2058 | goto fail; |
2059 | ||
cfcac11d NC |
2060 | if (hdr->sh_link > elf_numsections (abfd)) |
2061 | { | |
caa83f8b | 2062 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2063 | field set to SHN_BEFORE or SHN_AFTER. */ |
2064 | switch (bfd_get_arch (abfd)) | |
2065 | { | |
caa83f8b | 2066 | case bfd_arch_i386: |
cfcac11d NC |
2067 | case bfd_arch_sparc: |
2068 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2069 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2070 | break; | |
2071 | /* Otherwise fall through. */ | |
2072 | default: | |
bf67003b | 2073 | goto fail; |
cfcac11d NC |
2074 | } |
2075 | } | |
2076 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2077 | goto fail; |
cfcac11d | 2078 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2079 | { |
2080 | Elf_Internal_Shdr *dynsymhdr; | |
2081 | ||
2082 | /* The shared libraries distributed with hpux11 have a bogus | |
2083 | sh_link field for the ".dynamic" section. Find the | |
2084 | string table for the ".dynsym" section instead. */ | |
2085 | if (elf_dynsymtab (abfd) != 0) | |
2086 | { | |
2087 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2088 | hdr->sh_link = dynsymhdr->sh_link; | |
2089 | } | |
2090 | else | |
2091 | { | |
2092 | unsigned int i, num_sec; | |
2093 | ||
2094 | num_sec = elf_numsections (abfd); | |
2095 | for (i = 1; i < num_sec; i++) | |
2096 | { | |
2097 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2098 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2099 | { | |
2100 | hdr->sh_link = dynsymhdr->sh_link; | |
2101 | break; | |
2102 | } | |
2103 | } | |
2104 | } | |
2105 | } | |
bf67003b | 2106 | goto success; |
797fc050 | 2107 | |
bf67003b | 2108 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2109 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2110 | goto success; |
252b5132 | 2111 | |
a50b2160 | 2112 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2113 | goto fail; |
2114 | ||
3337c1e5 | 2115 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2116 | { |
2117 | if (hdr->sh_size != 0) | |
bf67003b | 2118 | goto fail; |
eee3b786 AM |
2119 | /* Some assemblers erroneously set sh_info to one with a |
2120 | zero sh_size. ld sees this as a global symbol count | |
2121 | of (unsigned) -1. Fix it here. */ | |
2122 | hdr->sh_info = 0; | |
bf67003b | 2123 | goto success; |
eee3b786 | 2124 | } |
bf67003b | 2125 | |
16ad13ec NC |
2126 | /* PR 18854: A binary might contain more than one symbol table. |
2127 | Unusual, but possible. Warn, but continue. */ | |
2128 | if (elf_onesymtab (abfd) != 0) | |
2129 | { | |
4eca0228 | 2130 | _bfd_error_handler |
695344c0 | 2131 | /* xgettext:c-format */ |
871b3ab2 | 2132 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2133 | " - ignoring the table in section %u"), |
16ad13ec NC |
2134 | abfd, shindex); |
2135 | goto success; | |
2136 | } | |
252b5132 | 2137 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2138 | elf_symtab_hdr (abfd) = *hdr; |
2139 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2140 | abfd->flags |= HAS_SYMS; |
2141 | ||
2142 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2143 | SHF_ALLOC is set, and this is a shared object, then we also |
2144 | treat this section as a BFD section. We can not base the | |
2145 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2146 | set in a relocatable object file, which would confuse the | |
2147 | linker. */ | |
252b5132 RH |
2148 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2149 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2150 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2151 | shindex)) | |
bf67003b | 2152 | goto fail; |
252b5132 | 2153 | |
1b3a8575 AM |
2154 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2155 | can't read symbols without that section loaded as well. It | |
2156 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2157 | { |
2158 | elf_section_list * entry; | |
2159 | unsigned int i, num_sec; | |
1b3a8575 | 2160 | |
6a40cf0c NC |
2161 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2162 | if (entry->hdr.sh_link == shindex) | |
2163 | goto success; | |
2164 | ||
2165 | num_sec = elf_numsections (abfd); | |
2166 | for (i = shindex + 1; i < num_sec; i++) | |
2167 | { | |
2168 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2169 | ||
2170 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2171 | && hdr2->sh_link == shindex) | |
2172 | break; | |
2173 | } | |
2174 | ||
2175 | if (i == num_sec) | |
2176 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2177 | { |
2178 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2179 | |
1b3a8575 AM |
2180 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2181 | && hdr2->sh_link == shindex) | |
2182 | break; | |
2183 | } | |
6a40cf0c NC |
2184 | |
2185 | if (i != shindex) | |
2186 | ret = bfd_section_from_shdr (abfd, i); | |
2187 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2188 | goto success; | |
2189 | } | |
252b5132 | 2190 | |
bf67003b | 2191 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2192 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2193 | goto success; |
252b5132 | 2194 | |
a50b2160 | 2195 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2196 | goto fail; |
2197 | ||
eee3b786 AM |
2198 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2199 | { | |
2200 | if (hdr->sh_size != 0) | |
bf67003b NC |
2201 | goto fail; |
2202 | ||
eee3b786 AM |
2203 | /* Some linkers erroneously set sh_info to one with a |
2204 | zero sh_size. ld sees this as a global symbol count | |
2205 | of (unsigned) -1. Fix it here. */ | |
2206 | hdr->sh_info = 0; | |
bf67003b | 2207 | goto success; |
eee3b786 | 2208 | } |
bf67003b | 2209 | |
16ad13ec NC |
2210 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2211 | Unusual, but possible. Warn, but continue. */ | |
2212 | if (elf_dynsymtab (abfd) != 0) | |
2213 | { | |
4eca0228 | 2214 | _bfd_error_handler |
695344c0 | 2215 | /* xgettext:c-format */ |
871b3ab2 | 2216 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2217 | " - ignoring the table in section %u"), |
16ad13ec NC |
2218 | abfd, shindex); |
2219 | goto success; | |
2220 | } | |
252b5132 RH |
2221 | elf_dynsymtab (abfd) = shindex; |
2222 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2223 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2224 | abfd->flags |= HAS_SYMS; | |
2225 | ||
2226 | /* Besides being a symbol table, we also treat this as a regular | |
2227 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2228 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2229 | goto success; | |
252b5132 | 2230 | |
bf67003b | 2231 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2232 | { |
2233 | elf_section_list * entry; | |
9ad5cbcf | 2234 | |
6a40cf0c NC |
2235 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2236 | if (entry->ndx == shindex) | |
2237 | goto success; | |
07d6d2b8 | 2238 | |
6a40cf0c NC |
2239 | entry = bfd_alloc (abfd, sizeof * entry); |
2240 | if (entry == NULL) | |
2241 | goto fail; | |
2242 | entry->ndx = shindex; | |
2243 | entry->hdr = * hdr; | |
2244 | entry->next = elf_symtab_shndx_list (abfd); | |
2245 | elf_symtab_shndx_list (abfd) = entry; | |
2246 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2247 | goto success; | |
2248 | } | |
9ad5cbcf | 2249 | |
bf67003b | 2250 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2251 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2252 | goto success; |
2253 | ||
252b5132 RH |
2254 | if (ehdr->e_shstrndx == shindex) |
2255 | { | |
2256 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2257 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2258 | goto success; |
252b5132 | 2259 | } |
bf67003b | 2260 | |
1b3a8575 AM |
2261 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2262 | { | |
2263 | symtab_strtab: | |
2264 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2265 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2266 | goto success; |
1b3a8575 | 2267 | } |
bf67003b | 2268 | |
1b3a8575 AM |
2269 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2270 | { | |
2271 | dynsymtab_strtab: | |
2272 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2273 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2274 | elf_elfsections (abfd)[shindex] = hdr; | |
2275 | /* We also treat this as a regular section, so that objcopy | |
2276 | can handle it. */ | |
bf67003b NC |
2277 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2278 | shindex); | |
2279 | goto success; | |
1b3a8575 | 2280 | } |
252b5132 | 2281 | |
1b3a8575 AM |
2282 | /* If the string table isn't one of the above, then treat it as a |
2283 | regular section. We need to scan all the headers to be sure, | |
2284 | just in case this strtab section appeared before the above. */ | |
2285 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2286 | { | |
2287 | unsigned int i, num_sec; | |
252b5132 | 2288 | |
1b3a8575 AM |
2289 | num_sec = elf_numsections (abfd); |
2290 | for (i = 1; i < num_sec; i++) | |
2291 | { | |
2292 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2293 | if (hdr2->sh_link == shindex) | |
2294 | { | |
933d961a JJ |
2295 | /* Prevent endless recursion on broken objects. */ |
2296 | if (i == shindex) | |
bf67003b | 2297 | goto fail; |
1b3a8575 | 2298 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2299 | goto fail; |
1b3a8575 AM |
2300 | if (elf_onesymtab (abfd) == i) |
2301 | goto symtab_strtab; | |
2302 | if (elf_dynsymtab (abfd) == i) | |
2303 | goto dynsymtab_strtab; | |
2304 | } | |
2305 | } | |
2306 | } | |
bf67003b NC |
2307 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2308 | goto success; | |
252b5132 RH |
2309 | |
2310 | case SHT_REL: | |
2311 | case SHT_RELA: | |
2312 | /* *These* do a lot of work -- but build no sections! */ | |
2313 | { | |
2314 | asection *target_sect; | |
d4730f92 | 2315 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2316 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2317 | struct bfd_elf_section_data *esdt; |
252b5132 | 2318 | |
aa2ca951 JJ |
2319 | if (hdr->sh_entsize |
2320 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2321 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2322 | goto fail; |
a50b2160 | 2323 | |
03ae5f59 | 2324 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2325 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2326 | { |
4eca0228 | 2327 | _bfd_error_handler |
695344c0 | 2328 | /* xgettext:c-format */ |
871b3ab2 | 2329 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2330 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2331 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2332 | shindex); | |
2333 | goto success; | |
03ae5f59 ILT |
2334 | } |
2335 | ||
252b5132 RH |
2336 | /* For some incomprehensible reason Oracle distributes |
2337 | libraries for Solaris in which some of the objects have | |
2338 | bogus sh_link fields. It would be nice if we could just | |
2339 | reject them, but, unfortunately, some people need to use | |
2340 | them. We scan through the section headers; if we find only | |
2341 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2342 | to it. I hope this doesn't break anything. |
2343 | ||
2344 | Don't do it on executable nor shared library. */ | |
2345 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2346 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2347 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2348 | { | |
9ad5cbcf | 2349 | unsigned int scan; |
252b5132 RH |
2350 | int found; |
2351 | ||
2352 | found = 0; | |
9ad5cbcf | 2353 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2354 | { |
2355 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2356 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2357 | { | |
2358 | if (found != 0) | |
2359 | { | |
2360 | found = 0; | |
2361 | break; | |
2362 | } | |
2363 | found = scan; | |
2364 | } | |
2365 | } | |
2366 | if (found != 0) | |
2367 | hdr->sh_link = found; | |
2368 | } | |
2369 | ||
2370 | /* Get the symbol table. */ | |
1b3a8575 AM |
2371 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2372 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2373 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2374 | goto fail; |
252b5132 RH |
2375 | |
2376 | /* If this reloc section does not use the main symbol table we | |
2377 | don't treat it as a reloc section. BFD can't adequately | |
2378 | represent such a section, so at least for now, we don't | |
c044fabd | 2379 | try. We just present it as a normal section. We also |
60bcf0fa | 2380 | can't use it as a reloc section if it points to the null |
83b89087 L |
2381 | section, an invalid section, another reloc section, or its |
2382 | sh_link points to the null section. */ | |
185ef66d | 2383 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 2384 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 2385 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2386 | || hdr->sh_info >= num_sec |
2387 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2388 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2389 | { |
2390 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2391 | shindex); | |
2392 | goto success; | |
2393 | } | |
252b5132 RH |
2394 | |
2395 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2396 | goto fail; |
2397 | ||
252b5132 RH |
2398 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2399 | if (target_sect == NULL) | |
bf67003b | 2400 | goto fail; |
252b5132 | 2401 | |
d4730f92 BS |
2402 | esdt = elf_section_data (target_sect); |
2403 | if (hdr->sh_type == SHT_RELA) | |
2404 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2405 | else |
d4730f92 BS |
2406 | p_hdr = &esdt->rel.hdr; |
2407 | ||
06614111 NC |
2408 | /* PR 17512: file: 0b4f81b7. */ |
2409 | if (*p_hdr != NULL) | |
2410 | goto fail; | |
ef53be89 | 2411 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2412 | if (hdr2 == NULL) |
bf67003b | 2413 | goto fail; |
252b5132 | 2414 | *hdr2 = *hdr; |
d4730f92 | 2415 | *p_hdr = hdr2; |
252b5132 | 2416 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2417 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2418 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2419 | target_sect->flags |= SEC_RELOC; |
2420 | target_sect->relocation = NULL; | |
2421 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2422 | /* In the section to which the relocations apply, mark whether |
2423 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2424 | if (hdr->sh_size != 0) |
d4730f92 BS |
2425 | { |
2426 | if (hdr->sh_type == SHT_RELA) | |
2427 | target_sect->use_rela_p = 1; | |
2428 | } | |
252b5132 | 2429 | abfd->flags |= HAS_RELOC; |
bf67003b | 2430 | goto success; |
252b5132 | 2431 | } |
252b5132 RH |
2432 | |
2433 | case SHT_GNU_verdef: | |
2434 | elf_dynverdef (abfd) = shindex; | |
2435 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2436 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2437 | goto success; | |
252b5132 RH |
2438 | |
2439 | case SHT_GNU_versym: | |
a50b2160 | 2440 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2441 | goto fail; |
2442 | ||
252b5132 RH |
2443 | elf_dynversym (abfd) = shindex; |
2444 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2445 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2446 | goto success; | |
252b5132 RH |
2447 | |
2448 | case SHT_GNU_verneed: | |
2449 | elf_dynverref (abfd) = shindex; | |
2450 | elf_tdata (abfd)->dynverref_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_SHLIB: | |
bf67003b | 2455 | goto success; |
252b5132 | 2456 | |
dbb410c3 | 2457 | case SHT_GROUP: |
44534af3 | 2458 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2459 | goto fail; |
2460 | ||
6dc132d9 | 2461 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2462 | goto fail; |
2463 | ||
bf67003b | 2464 | goto success; |
dbb410c3 | 2465 | |
252b5132 | 2466 | default: |
104d59d1 JM |
2467 | /* Possibly an attributes section. */ |
2468 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2469 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2470 | { | |
2471 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2472 | goto fail; |
104d59d1 | 2473 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2474 | goto success; |
104d59d1 JM |
2475 | } |
2476 | ||
252b5132 | 2477 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2478 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2479 | goto success; |
3eb70a79 L |
2480 | |
2481 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2482 | { | |
2483 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2484 | /* FIXME: How to properly handle allocated section reserved | |
2485 | for applications? */ | |
4eca0228 | 2486 | _bfd_error_handler |
695344c0 | 2487 | /* xgettext:c-format */ |
871b3ab2 | 2488 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2489 | abfd, hdr->sh_type, name); |
3eb70a79 | 2490 | else |
bf67003b NC |
2491 | { |
2492 | /* Allow sections reserved for applications. */ | |
2493 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2494 | shindex); | |
2495 | goto success; | |
2496 | } | |
3eb70a79 L |
2497 | } |
2498 | else if (hdr->sh_type >= SHT_LOPROC | |
2499 | && hdr->sh_type <= SHT_HIPROC) | |
2500 | /* FIXME: We should handle this section. */ | |
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 if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2506 | { |
2507 | /* Unrecognised OS-specific sections. */ | |
2508 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2509 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2510 | required to correctly process the section and the file should |
ff15b240 | 2511 | be rejected with an error message. */ |
4eca0228 | 2512 | _bfd_error_handler |
695344c0 | 2513 | /* xgettext:c-format */ |
871b3ab2 | 2514 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2515 | abfd, hdr->sh_type, name); |
ff15b240 | 2516 | else |
bf67003b NC |
2517 | { |
2518 | /* Otherwise it should be processed. */ | |
2519 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2520 | goto success; | |
2521 | } | |
ff15b240 | 2522 | } |
3eb70a79 L |
2523 | else |
2524 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2525 | _bfd_error_handler |
695344c0 | 2526 | /* xgettext:c-format */ |
871b3ab2 | 2527 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2528 | abfd, hdr->sh_type, name); |
3eb70a79 | 2529 | |
bf67003b | 2530 | goto fail; |
252b5132 RH |
2531 | } |
2532 | ||
bf67003b NC |
2533 | fail: |
2534 | ret = FALSE; | |
2535 | success: | |
e5b470e2 | 2536 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2537 | sections_being_created [shindex] = FALSE; |
2538 | if (-- nesting == 0) | |
5a4b0ccc NC |
2539 | { |
2540 | sections_being_created = NULL; | |
2541 | sections_being_created_abfd = abfd; | |
2542 | } | |
bf67003b | 2543 | return ret; |
252b5132 RH |
2544 | } |
2545 | ||
87d72d41 | 2546 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2547 | |
87d72d41 AM |
2548 | Elf_Internal_Sym * |
2549 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2550 | bfd *abfd, | |
2551 | unsigned long r_symndx) | |
ec338859 | 2552 | { |
ec338859 AM |
2553 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2554 | ||
a5d1b3b5 AM |
2555 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2556 | { | |
2557 | Elf_Internal_Shdr *symtab_hdr; | |
2558 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2559 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2560 | |
a5d1b3b5 AM |
2561 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2562 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2563 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2564 | return NULL; |
9ad5cbcf | 2565 | |
a5d1b3b5 AM |
2566 | if (cache->abfd != abfd) |
2567 | { | |
2568 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2569 | cache->abfd = abfd; | |
2570 | } | |
2571 | cache->indx[ent] = r_symndx; | |
ec338859 | 2572 | } |
a5d1b3b5 | 2573 | |
87d72d41 | 2574 | return &cache->sym[ent]; |
ec338859 AM |
2575 | } |
2576 | ||
252b5132 RH |
2577 | /* Given an ELF section number, retrieve the corresponding BFD |
2578 | section. */ | |
2579 | ||
2580 | asection * | |
91d6fa6a | 2581 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2582 | { |
91d6fa6a | 2583 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2584 | return NULL; |
91d6fa6a | 2585 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2586 | } |
2587 | ||
b35d266b | 2588 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2589 | { |
0112cd26 | 2590 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2591 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2592 | }; |
2593 | ||
b35d266b | 2594 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2595 | { |
0112cd26 | 2596 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2597 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2598 | }; |
2599 | ||
b35d266b | 2600 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2601 | { |
07d6d2b8 AM |
2602 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2603 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2604 | /* There are more DWARF sections than these, but they needn't be added here |
2605 | unless you have to cope with broken compilers that don't emit section | |
2606 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2607 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2608 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2609 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2610 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2611 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2612 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2613 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2614 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2615 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2616 | }; |
2617 | ||
b35d266b | 2618 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2619 | { |
07d6d2b8 | 2620 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2621 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2622 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2623 | }; |
2624 | ||
b35d266b | 2625 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2626 | { |
0112cd26 | 2627 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2628 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2629 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2630 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2631 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2632 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2633 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2634 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2635 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2636 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2637 | }; |
2638 | ||
b35d266b | 2639 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2640 | { |
07d6d2b8 AM |
2641 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2642 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2643 | }; |
2644 | ||
b35d266b | 2645 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2646 | { |
07d6d2b8 | 2647 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2648 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2649 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2650 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2651 | }; |
2652 | ||
b35d266b | 2653 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2654 | { |
0112cd26 | 2655 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2656 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2657 | }; |
2658 | ||
b35d266b | 2659 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2660 | { |
0112cd26 | 2661 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2662 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2663 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2664 | }; |
2665 | ||
b35d266b | 2666 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2667 | { |
6f9dbcd4 | 2668 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2669 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2670 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2671 | }; |
2672 | ||
b35d266b | 2673 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2674 | { |
0112cd26 NC |
2675 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2676 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2677 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2678 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2679 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2680 | }; |
2681 | ||
b35d266b | 2682 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2683 | { |
0112cd26 NC |
2684 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2685 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2686 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2687 | /* See struct bfd_elf_special_section declaration for the semantics of |
2688 | this special case where .prefix_length != strlen (.prefix). */ | |
2689 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2690 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2691 | }; |
2692 | ||
b35d266b | 2693 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2694 | { |
07d6d2b8 AM |
2695 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2696 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2697 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2698 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2699 | }; |
2700 | ||
1b315056 CS |
2701 | static const struct bfd_elf_special_section special_sections_z[] = |
2702 | { | |
07d6d2b8 AM |
2703 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2704 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2705 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2706 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2707 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2708 | }; |
2709 | ||
e4c93b56 | 2710 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2711 | { |
7f4d3958 | 2712 | special_sections_b, /* 'b' */ |
98ece1b3 | 2713 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2714 | special_sections_d, /* 'd' */ |
2715 | NULL, /* 'e' */ | |
2716 | special_sections_f, /* 'f' */ | |
2717 | special_sections_g, /* 'g' */ | |
2718 | special_sections_h, /* 'h' */ | |
2719 | special_sections_i, /* 'i' */ | |
2720 | NULL, /* 'j' */ | |
2721 | NULL, /* 'k' */ | |
2722 | special_sections_l, /* 'l' */ | |
2723 | NULL, /* 'm' */ | |
2724 | special_sections_n, /* 'n' */ | |
2725 | NULL, /* 'o' */ | |
2726 | special_sections_p, /* 'p' */ | |
2727 | NULL, /* 'q' */ | |
2728 | special_sections_r, /* 'r' */ | |
2729 | special_sections_s, /* 's' */ | |
2730 | special_sections_t, /* 't' */ | |
1b315056 CS |
2731 | NULL, /* 'u' */ |
2732 | NULL, /* 'v' */ | |
2733 | NULL, /* 'w' */ | |
2734 | NULL, /* 'x' */ | |
2735 | NULL, /* 'y' */ | |
2736 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2737 | }; |
2738 | ||
551b43fd AM |
2739 | const struct bfd_elf_special_section * |
2740 | _bfd_elf_get_special_section (const char *name, | |
2741 | const struct bfd_elf_special_section *spec, | |
2742 | unsigned int rela) | |
2f89ff8d L |
2743 | { |
2744 | int i; | |
7f4d3958 | 2745 | int len; |
7f4d3958 | 2746 | |
551b43fd | 2747 | len = strlen (name); |
7f4d3958 | 2748 | |
551b43fd | 2749 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2750 | { |
2751 | int suffix_len; | |
551b43fd | 2752 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2753 | |
2754 | if (len < prefix_len) | |
2755 | continue; | |
551b43fd | 2756 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2757 | continue; |
2758 | ||
551b43fd | 2759 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2760 | if (suffix_len <= 0) |
2761 | { | |
2762 | if (name[prefix_len] != 0) | |
2763 | { | |
2764 | if (suffix_len == 0) | |
2765 | continue; | |
2766 | if (name[prefix_len] != '.' | |
2767 | && (suffix_len == -2 | |
551b43fd | 2768 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2769 | continue; |
2770 | } | |
2771 | } | |
2772 | else | |
2773 | { | |
2774 | if (len < prefix_len + suffix_len) | |
2775 | continue; | |
2776 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2777 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2778 | suffix_len) != 0) |
2779 | continue; | |
2780 | } | |
551b43fd | 2781 | return &spec[i]; |
7dcb9820 | 2782 | } |
2f89ff8d L |
2783 | |
2784 | return NULL; | |
2785 | } | |
2786 | ||
7dcb9820 | 2787 | const struct bfd_elf_special_section * |
29ef7005 | 2788 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2789 | { |
551b43fd AM |
2790 | int i; |
2791 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2792 | const struct elf_backend_data *bed; |
2f89ff8d L |
2793 | |
2794 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2795 | if (sec->name == NULL) |
2796 | return NULL; | |
2f89ff8d | 2797 | |
29ef7005 L |
2798 | bed = get_elf_backend_data (abfd); |
2799 | spec = bed->special_sections; | |
2800 | if (spec) | |
2801 | { | |
2802 | spec = _bfd_elf_get_special_section (sec->name, | |
2803 | bed->special_sections, | |
2804 | sec->use_rela_p); | |
2805 | if (spec != NULL) | |
2806 | return spec; | |
2807 | } | |
2808 | ||
551b43fd AM |
2809 | if (sec->name[0] != '.') |
2810 | return NULL; | |
2f89ff8d | 2811 | |
551b43fd | 2812 | i = sec->name[1] - 'b'; |
1b315056 | 2813 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2814 | return NULL; |
2815 | ||
2816 | spec = special_sections[i]; | |
2f89ff8d | 2817 | |
551b43fd AM |
2818 | if (spec == NULL) |
2819 | return NULL; | |
2820 | ||
2821 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2822 | } |
2823 | ||
b34976b6 | 2824 | bfd_boolean |
217aa764 | 2825 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2826 | { |
2827 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2828 | const struct elf_backend_data *bed; |
7dcb9820 | 2829 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2830 | |
f0abc2a1 AM |
2831 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2832 | if (sdata == NULL) | |
2833 | { | |
a50b1753 | 2834 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2835 | sizeof (*sdata)); |
f0abc2a1 AM |
2836 | if (sdata == NULL) |
2837 | return FALSE; | |
217aa764 | 2838 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2839 | } |
bf572ba0 | 2840 | |
551b43fd AM |
2841 | /* Indicate whether or not this section should use RELA relocations. */ |
2842 | bed = get_elf_backend_data (abfd); | |
2843 | sec->use_rela_p = bed->default_use_rela_p; | |
2844 | ||
e843e0f8 L |
2845 | /* When we read a file, we don't need to set ELF section type and |
2846 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2847 | anyway. We will set ELF section type and flags for all linker | |
2848 | created sections. If user specifies BFD section flags, we will | |
2849 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2850 | elf_fake_sections. Special handling for .init_array/.fini_array |
2851 | output sections since they may contain .ctors/.dtors input | |
2852 | sections. We don't want _bfd_elf_init_private_section_data to | |
2853 | copy ELF section type from .ctors/.dtors input sections. */ | |
2854 | if (abfd->direction != read_direction | |
3496cb2a | 2855 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2856 | { |
551b43fd | 2857 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2858 | if (ssect != NULL |
2859 | && (!sec->flags | |
2860 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2861 | || ssect->type == SHT_INIT_ARRAY | |
2862 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2863 | { |
2864 | elf_section_type (sec) = ssect->type; | |
2865 | elf_section_flags (sec) = ssect->attr; | |
2866 | } | |
2f89ff8d L |
2867 | } |
2868 | ||
f592407e | 2869 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2870 | } |
2871 | ||
2872 | /* Create a new bfd section from an ELF program header. | |
2873 | ||
2874 | Since program segments have no names, we generate a synthetic name | |
2875 | of the form segment<NUM>, where NUM is generally the index in the | |
2876 | program header table. For segments that are split (see below) we | |
2877 | generate the names segment<NUM>a and segment<NUM>b. | |
2878 | ||
2879 | Note that some program segments may have a file size that is different than | |
2880 | (less than) the memory size. All this means is that at execution the | |
2881 | system must allocate the amount of memory specified by the memory size, | |
2882 | but only initialize it with the first "file size" bytes read from the | |
2883 | file. This would occur for example, with program segments consisting | |
2884 | of combined data+bss. | |
2885 | ||
2886 | To handle the above situation, this routine generates TWO bfd sections | |
2887 | for the single program segment. The first has the length specified by | |
2888 | the file size of the segment, and the second has the length specified | |
2889 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2890 | into its initialized and uninitialized parts. |
252b5132 RH |
2891 | |
2892 | */ | |
2893 | ||
b34976b6 | 2894 | bfd_boolean |
217aa764 AM |
2895 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2896 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2897 | int hdr_index, |
a50b1753 | 2898 | const char *type_name) |
252b5132 RH |
2899 | { |
2900 | asection *newsect; | |
2901 | char *name; | |
2902 | char namebuf[64]; | |
d4c88bbb | 2903 | size_t len; |
252b5132 RH |
2904 | int split; |
2905 | ||
2906 | split = ((hdr->p_memsz > 0) | |
2907 | && (hdr->p_filesz > 0) | |
2908 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2909 | |
2910 | if (hdr->p_filesz > 0) | |
252b5132 | 2911 | { |
91d6fa6a | 2912 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2913 | len = strlen (namebuf) + 1; |
a50b1753 | 2914 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2915 | if (!name) |
2916 | return FALSE; | |
2917 | memcpy (name, namebuf, len); | |
2918 | newsect = bfd_make_section (abfd, name); | |
2919 | if (newsect == NULL) | |
2920 | return FALSE; | |
2921 | newsect->vma = hdr->p_vaddr; | |
2922 | newsect->lma = hdr->p_paddr; | |
2923 | newsect->size = hdr->p_filesz; | |
2924 | newsect->filepos = hdr->p_offset; | |
2925 | newsect->flags |= SEC_HAS_CONTENTS; | |
2926 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2927 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2928 | { |
d5191d0c AM |
2929 | newsect->flags |= SEC_ALLOC; |
2930 | newsect->flags |= SEC_LOAD; | |
2931 | if (hdr->p_flags & PF_X) | |
2932 | { | |
2933 | /* FIXME: all we known is that it has execute PERMISSION, | |
2934 | may be data. */ | |
2935 | newsect->flags |= SEC_CODE; | |
2936 | } | |
2937 | } | |
2938 | if (!(hdr->p_flags & PF_W)) | |
2939 | { | |
2940 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2941 | } |
252b5132 RH |
2942 | } |
2943 | ||
d5191d0c | 2944 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2945 | { |
d5191d0c AM |
2946 | bfd_vma align; |
2947 | ||
91d6fa6a | 2948 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2949 | len = strlen (namebuf) + 1; |
a50b1753 | 2950 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2951 | if (!name) |
b34976b6 | 2952 | return FALSE; |
d4c88bbb | 2953 | memcpy (name, namebuf, len); |
252b5132 RH |
2954 | newsect = bfd_make_section (abfd, name); |
2955 | if (newsect == NULL) | |
b34976b6 | 2956 | return FALSE; |
252b5132 RH |
2957 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2958 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2959 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2960 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2961 | align = newsect->vma & -newsect->vma; | |
2962 | if (align == 0 || align > hdr->p_align) | |
2963 | align = hdr->p_align; | |
2964 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2965 | if (hdr->p_type == PT_LOAD) |
2966 | { | |
d5191d0c AM |
2967 | /* Hack for gdb. Segments that have not been modified do |
2968 | not have their contents written to a core file, on the | |
2969 | assumption that a debugger can find the contents in the | |
2970 | executable. We flag this case by setting the fake | |
2971 | section size to zero. Note that "real" bss sections will | |
2972 | always have their contents dumped to the core file. */ | |
2973 | if (bfd_get_format (abfd) == bfd_core) | |
2974 | newsect->size = 0; | |
252b5132 RH |
2975 | newsect->flags |= SEC_ALLOC; |
2976 | if (hdr->p_flags & PF_X) | |
2977 | newsect->flags |= SEC_CODE; | |
2978 | } | |
2979 | if (!(hdr->p_flags & PF_W)) | |
2980 | newsect->flags |= SEC_READONLY; | |
2981 | } | |
2982 | ||
b34976b6 | 2983 | return TRUE; |
252b5132 RH |
2984 | } |
2985 | ||
b34976b6 | 2986 | bfd_boolean |
91d6fa6a | 2987 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2988 | { |
9c5bfbb7 | 2989 | const struct elf_backend_data *bed; |
20cfcaae NC |
2990 | |
2991 | switch (hdr->p_type) | |
2992 | { | |
2993 | case PT_NULL: | |
91d6fa6a | 2994 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2995 | |
2996 | case PT_LOAD: | |
91d6fa6a | 2997 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2998 | |
2999 | case PT_DYNAMIC: | |
91d6fa6a | 3000 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3001 | |
3002 | case PT_INTERP: | |
91d6fa6a | 3003 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3004 | |
3005 | case PT_NOTE: | |
91d6fa6a | 3006 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3007 | return FALSE; |
276da9b3 L |
3008 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3009 | hdr->p_align)) | |
b34976b6 AM |
3010 | return FALSE; |
3011 | return TRUE; | |
20cfcaae NC |
3012 | |
3013 | case PT_SHLIB: | |
91d6fa6a | 3014 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3015 | |
3016 | case PT_PHDR: | |
91d6fa6a | 3017 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3018 | |
811072d8 | 3019 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3020 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3021 | "eh_frame_hdr"); |
3022 | ||
2b05f1b7 | 3023 | case PT_GNU_STACK: |
91d6fa6a | 3024 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3025 | |
8c37241b | 3026 | case PT_GNU_RELRO: |
91d6fa6a | 3027 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3028 | |
20cfcaae | 3029 | default: |
8c1acd09 | 3030 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3031 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3032 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3033 | } |
3034 | } | |
3035 | ||
d4730f92 BS |
3036 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3037 | REL or RELA. */ | |
3038 | ||
3039 | Elf_Internal_Shdr * | |
3040 | _bfd_elf_single_rel_hdr (asection *sec) | |
3041 | { | |
3042 | if (elf_section_data (sec)->rel.hdr) | |
3043 | { | |
3044 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3045 | return elf_section_data (sec)->rel.hdr; | |
3046 | } | |
3047 | else | |
3048 | return elf_section_data (sec)->rela.hdr; | |
3049 | } | |
3050 | ||
3e19fb8f L |
3051 | static bfd_boolean |
3052 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3053 | Elf_Internal_Shdr *rel_hdr, | |
3054 | const char *sec_name, | |
3055 | bfd_boolean use_rela_p) | |
3056 | { | |
3057 | char *name = (char *) bfd_alloc (abfd, | |
3058 | sizeof ".rela" + strlen (sec_name)); | |
3059 | if (name == NULL) | |
3060 | return FALSE; | |
3061 | ||
3062 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3063 | rel_hdr->sh_name = | |
3064 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3065 | FALSE); | |
3066 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3067 | return FALSE; | |
3068 | ||
3069 | return TRUE; | |
3070 | } | |
3071 | ||
d4730f92 BS |
3072 | /* Allocate and initialize a section-header for a new reloc section, |
3073 | containing relocations against ASECT. It is stored in RELDATA. If | |
3074 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3075 | relocations. */ | |
23bc299b | 3076 | |
5d13b3b3 | 3077 | static bfd_boolean |
217aa764 | 3078 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3079 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3080 | const char *sec_name, |
3e19fb8f L |
3081 | bfd_boolean use_rela_p, |
3082 | bfd_boolean delay_st_name_p) | |
23bc299b | 3083 | { |
d4730f92 | 3084 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3085 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3086 | |
d4730f92 | 3087 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3088 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3089 | reldata->hdr = rel_hdr; |
23bc299b | 3090 | |
3e19fb8f L |
3091 | if (delay_st_name_p) |
3092 | rel_hdr->sh_name = (unsigned int) -1; | |
3093 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3094 | use_rela_p)) | |
b34976b6 | 3095 | return FALSE; |
23bc299b MM |
3096 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3097 | rel_hdr->sh_entsize = (use_rela_p | |
3098 | ? bed->s->sizeof_rela | |
3099 | : bed->s->sizeof_rel); | |
72de5009 | 3100 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3101 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3102 | rel_hdr->sh_addr = 0; |
3103 | rel_hdr->sh_size = 0; | |
3104 | rel_hdr->sh_offset = 0; | |
3105 | ||
b34976b6 | 3106 | return TRUE; |
23bc299b MM |
3107 | } |
3108 | ||
94be91de JB |
3109 | /* Return the default section type based on the passed in section flags. */ |
3110 | ||
3111 | int | |
3112 | bfd_elf_get_default_section_type (flagword flags) | |
3113 | { | |
3114 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 3115 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3116 | return SHT_NOBITS; |
3117 | return SHT_PROGBITS; | |
3118 | } | |
3119 | ||
d4730f92 BS |
3120 | struct fake_section_arg |
3121 | { | |
3122 | struct bfd_link_info *link_info; | |
3123 | bfd_boolean failed; | |
3124 | }; | |
3125 | ||
252b5132 RH |
3126 | /* Set up an ELF internal section header for a section. */ |
3127 | ||
252b5132 | 3128 | static void |
d4730f92 | 3129 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3130 | { |
d4730f92 | 3131 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3132 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3133 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3134 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3135 | unsigned int sh_type; |
0ce398f1 | 3136 | const char *name = asect->name; |
3e19fb8f | 3137 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3138 | |
d4730f92 | 3139 | if (arg->failed) |
252b5132 RH |
3140 | { |
3141 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3142 | loop. */ |
252b5132 RH |
3143 | return; |
3144 | } | |
3145 | ||
d4730f92 | 3146 | this_hdr = &esd->this_hdr; |
252b5132 | 3147 | |
f6fe1ccd | 3148 | if (arg->link_info) |
0ce398f1 | 3149 | { |
f6fe1ccd L |
3150 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3151 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3152 | && (asect->flags & SEC_DEBUGGING) | |
3153 | && name[1] == 'd' | |
3154 | && name[6] == '_') | |
3155 | { | |
3156 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3157 | compressed. */ | |
3158 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3159 | |
dd905818 | 3160 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3161 | name to section name section after it is compressed in |
3162 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3163 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3164 | } |
3165 | } | |
3166 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3167 | { | |
3168 | /* objcopy: rename output DWARF debug section. */ | |
3169 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3170 | { | |
3171 | /* When we decompress or compress with SHF_COMPRESSED, | |
3172 | convert section name from .zdebug_* to .debug_* if | |
3173 | needed. */ | |
3174 | if (name[1] == 'z') | |
3175 | { | |
3176 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3177 | if (new_name == NULL) | |
3178 | { | |
3179 | arg->failed = TRUE; | |
3180 | return; | |
3181 | } | |
3182 | name = new_name; | |
3183 | } | |
3184 | } | |
3185 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3186 | { |
f6fe1ccd L |
3187 | /* PR binutils/18087: Compression does not always make a |
3188 | section smaller. So only rename the section when | |
3189 | compression has actually taken place. If input section | |
3190 | name is .zdebug_*, we should never compress it again. */ | |
3191 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3192 | if (new_name == NULL) |
3193 | { | |
3194 | arg->failed = TRUE; | |
3195 | return; | |
3196 | } | |
f6fe1ccd L |
3197 | BFD_ASSERT (name[1] != 'z'); |
3198 | name = new_name; | |
0ce398f1 L |
3199 | } |
3200 | } | |
3201 | ||
3e19fb8f L |
3202 | if (delay_st_name_p) |
3203 | this_hdr->sh_name = (unsigned int) -1; | |
3204 | else | |
252b5132 | 3205 | { |
3e19fb8f L |
3206 | this_hdr->sh_name |
3207 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3208 | name, FALSE); | |
3209 | if (this_hdr->sh_name == (unsigned int) -1) | |
3210 | { | |
3211 | arg->failed = TRUE; | |
3212 | return; | |
3213 | } | |
252b5132 RH |
3214 | } |
3215 | ||
a4d8e49b | 3216 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3217 | |
3218 | if ((asect->flags & SEC_ALLOC) != 0 | |
3219 | || asect->user_set_vma) | |
3220 | this_hdr->sh_addr = asect->vma; | |
3221 | else | |
3222 | this_hdr->sh_addr = 0; | |
3223 | ||
3224 | this_hdr->sh_offset = 0; | |
eea6121a | 3225 | this_hdr->sh_size = asect->size; |
252b5132 | 3226 | this_hdr->sh_link = 0; |
c86934ce NC |
3227 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3228 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3229 | { | |
4eca0228 | 3230 | _bfd_error_handler |
695344c0 | 3231 | /* xgettext:c-format */ |
9793eb77 | 3232 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3233 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3234 | arg->failed = TRUE; |
3235 | return; | |
3236 | } | |
72de5009 | 3237 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3238 | /* The sh_entsize and sh_info fields may have been set already by |
3239 | copy_private_section_data. */ | |
3240 | ||
3241 | this_hdr->bfd_section = asect; | |
3242 | this_hdr->contents = NULL; | |
3243 | ||
3cddba1e L |
3244 | /* If the section type is unspecified, we set it based on |
3245 | asect->flags. */ | |
98ece1b3 AM |
3246 | if ((asect->flags & SEC_GROUP) != 0) |
3247 | sh_type = SHT_GROUP; | |
98ece1b3 | 3248 | else |
94be91de | 3249 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3250 | |
3cddba1e | 3251 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3252 | this_hdr->sh_type = sh_type; |
3253 | else if (this_hdr->sh_type == SHT_NOBITS | |
3254 | && sh_type == SHT_PROGBITS | |
3255 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3256 | { |
98ece1b3 AM |
3257 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3258 | allow the link to proceed. This can happen when users link | |
3259 | non-bss input sections to bss output sections, or emit data | |
3260 | to a bss output section via a linker script. */ | |
4eca0228 | 3261 | _bfd_error_handler |
871b3ab2 | 3262 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3263 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3264 | } |
3265 | ||
2f89ff8d | 3266 | switch (this_hdr->sh_type) |
252b5132 | 3267 | { |
2f89ff8d | 3268 | default: |
2f89ff8d L |
3269 | break; |
3270 | ||
3271 | case SHT_STRTAB: | |
2f89ff8d L |
3272 | case SHT_NOTE: |
3273 | case SHT_NOBITS: | |
3274 | case SHT_PROGBITS: | |
3275 | break; | |
606851fb AM |
3276 | |
3277 | case SHT_INIT_ARRAY: | |
3278 | case SHT_FINI_ARRAY: | |
3279 | case SHT_PREINIT_ARRAY: | |
3280 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3281 | break; | |
2f89ff8d L |
3282 | |
3283 | case SHT_HASH: | |
c7ac6ff8 | 3284 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3285 | break; |
5de3bf90 | 3286 | |
2f89ff8d | 3287 | case SHT_DYNSYM: |
252b5132 | 3288 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3289 | break; |
3290 | ||
3291 | case SHT_DYNAMIC: | |
252b5132 | 3292 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3293 | break; |
3294 | ||
3295 | case SHT_RELA: | |
3296 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3297 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3298 | break; | |
3299 | ||
3300 | case SHT_REL: | |
3301 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3302 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3303 | break; | |
3304 | ||
3305 | case SHT_GNU_versym: | |
252b5132 | 3306 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3307 | break; |
3308 | ||
3309 | case SHT_GNU_verdef: | |
252b5132 RH |
3310 | this_hdr->sh_entsize = 0; |
3311 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3312 | cverdefs. The linker will set cverdefs, but sh_info will be |
3313 | zero. */ | |
252b5132 RH |
3314 | if (this_hdr->sh_info == 0) |
3315 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3316 | else | |
3317 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3318 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3319 | break; |
3320 | ||
3321 | case SHT_GNU_verneed: | |
252b5132 RH |
3322 | this_hdr->sh_entsize = 0; |
3323 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3324 | cverrefs. The linker will set cverrefs, but sh_info will be |
3325 | zero. */ | |
252b5132 RH |
3326 | if (this_hdr->sh_info == 0) |
3327 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3328 | else | |
3329 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3330 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3331 | break; |
3332 | ||
3333 | case SHT_GROUP: | |
1783205a | 3334 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3335 | break; |
fdc90cb4 JJ |
3336 | |
3337 | case SHT_GNU_HASH: | |
3338 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3339 | break; | |
dbb410c3 | 3340 | } |
252b5132 RH |
3341 | |
3342 | if ((asect->flags & SEC_ALLOC) != 0) | |
3343 | this_hdr->sh_flags |= SHF_ALLOC; | |
3344 | if ((asect->flags & SEC_READONLY) == 0) | |
3345 | this_hdr->sh_flags |= SHF_WRITE; | |
3346 | if ((asect->flags & SEC_CODE) != 0) | |
3347 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3348 | if ((asect->flags & SEC_MERGE) != 0) |
3349 | { | |
3350 | this_hdr->sh_flags |= SHF_MERGE; | |
3351 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3352 | } |
84865015 NC |
3353 | if ((asect->flags & SEC_STRINGS) != 0) |
3354 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3355 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3356 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3357 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3358 | { |
3359 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3360 | if (asect->size == 0 |
3361 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3362 | { |
3a800eb9 | 3363 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3364 | |
704afa60 | 3365 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3366 | if (o != NULL) |
3367 | { | |
704afa60 | 3368 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3369 | if (this_hdr->sh_size != 0) |
3370 | this_hdr->sh_type = SHT_NOBITS; | |
3371 | } | |
704afa60 JJ |
3372 | } |
3373 | } | |
18ae9cc1 L |
3374 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3375 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3376 | |
d4730f92 BS |
3377 | /* If the section has relocs, set up a section header for the |
3378 | SHT_REL[A] section. If two relocation sections are required for | |
3379 | this section, it is up to the processor-specific back-end to | |
3380 | create the other. */ | |
3381 | if ((asect->flags & SEC_RELOC) != 0) | |
3382 | { | |
3383 | /* When doing a relocatable link, create both REL and RELA sections if | |
3384 | needed. */ | |
3385 | if (arg->link_info | |
3386 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3387 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3388 | && (bfd_link_relocatable (arg->link_info) |
3389 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3390 | { |
3391 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3392 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3393 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3394 | { |
3395 | arg->failed = TRUE; | |
3396 | return; | |
3397 | } | |
3398 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3399 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3400 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3401 | { |
3402 | arg->failed = TRUE; | |
3403 | return; | |
3404 | } | |
3405 | } | |
3406 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3407 | (asect->use_rela_p | |
3408 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3409 | name, |
3e19fb8f L |
3410 | asect->use_rela_p, |
3411 | delay_st_name_p)) | |
db4677b8 | 3412 | { |
d4730f92 | 3413 | arg->failed = TRUE; |
db4677b8 AM |
3414 | return; |
3415 | } | |
d4730f92 BS |
3416 | } |
3417 | ||
252b5132 | 3418 | /* Check for processor-specific section types. */ |
0414f35b | 3419 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3420 | if (bed->elf_backend_fake_sections |
3421 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3422 | { |
3423 | arg->failed = TRUE; | |
3424 | return; | |
3425 | } | |
252b5132 | 3426 | |
42bb2e33 | 3427 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3428 | { |
3429 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3430 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3431 | this_hdr->sh_type = sh_type; |
3432 | } | |
252b5132 RH |
3433 | } |
3434 | ||
bcacc0f5 AM |
3435 | /* Fill in the contents of a SHT_GROUP section. Called from |
3436 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3437 | when ELF targets use the generic linker, ld. Called for ld -r | |
3438 | from bfd_elf_final_link. */ | |
dbb410c3 | 3439 | |
1126897b | 3440 | void |
217aa764 | 3441 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3442 | { |
a50b1753 | 3443 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3444 | asection *elt, *first; |
dbb410c3 | 3445 | unsigned char *loc; |
b34976b6 | 3446 | bfd_boolean gas; |
dbb410c3 | 3447 | |
7e4111ad L |
3448 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3449 | elfxx-ia64.c. */ | |
3450 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
3451 | || *failedptr) |
3452 | return; | |
3453 | ||
bcacc0f5 AM |
3454 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3455 | { | |
3456 | unsigned long symindx = 0; | |
3457 | ||
3458 | /* elf_group_id will have been set up by objcopy and the | |
3459 | generic linker. */ | |
3460 | if (elf_group_id (sec) != NULL) | |
3461 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3462 | |
bcacc0f5 AM |
3463 | if (symindx == 0) |
3464 | { | |
3465 | /* If called from the assembler, swap_out_syms will have set up | |
3466 | elf_section_syms. */ | |
3467 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3468 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3469 | } | |
3470 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3471 | } | |
3472 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3473 | { |
bcacc0f5 AM |
3474 | /* The ELF backend linker sets sh_info to -2 when the group |
3475 | signature symbol is global, and thus the index can't be | |
3476 | set until all local symbols are output. */ | |
53720c49 AM |
3477 | asection *igroup; |
3478 | struct bfd_elf_section_data *sec_data; | |
3479 | unsigned long symndx; | |
3480 | unsigned long extsymoff; | |
bcacc0f5 AM |
3481 | struct elf_link_hash_entry *h; |
3482 | ||
53720c49 AM |
3483 | /* The point of this little dance to the first SHF_GROUP section |
3484 | then back to the SHT_GROUP section is that this gets us to | |
3485 | the SHT_GROUP in the input object. */ | |
3486 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3487 | sec_data = elf_section_data (igroup); | |
3488 | symndx = sec_data->this_hdr.sh_info; | |
3489 | extsymoff = 0; | |
bcacc0f5 AM |
3490 | if (!elf_bad_symtab (igroup->owner)) |
3491 | { | |
3492 | Elf_Internal_Shdr *symtab_hdr; | |
3493 | ||
3494 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3495 | extsymoff = symtab_hdr->sh_info; | |
3496 | } | |
3497 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3498 | while (h->root.type == bfd_link_hash_indirect | |
3499 | || h->root.type == bfd_link_hash_warning) | |
3500 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3501 | ||
3502 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3503 | } |
dbb410c3 | 3504 | |
1126897b | 3505 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3506 | gas = TRUE; |
dbb410c3 AM |
3507 | if (sec->contents == NULL) |
3508 | { | |
b34976b6 | 3509 | gas = FALSE; |
a50b1753 | 3510 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3511 | |
3512 | /* Arrange for the section to be written out. */ | |
3513 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3514 | if (sec->contents == NULL) |
3515 | { | |
b34976b6 | 3516 | *failedptr = TRUE; |
dbb410c3 AM |
3517 | return; |
3518 | } | |
3519 | } | |
3520 | ||
eea6121a | 3521 | loc = sec->contents + sec->size; |
dbb410c3 | 3522 | |
9dce4196 AM |
3523 | /* Get the pointer to the first section in the group that gas |
3524 | squirreled away here. objcopy arranges for this to be set to the | |
3525 | start of the input section group. */ | |
3526 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3527 | |
3528 | /* First element is a flag word. Rest of section is elf section | |
3529 | indices for all the sections of the group. Write them backwards | |
3530 | just to keep the group in the same order as given in .section | |
3531 | directives, not that it matters. */ | |
3532 | while (elt != NULL) | |
3533 | { | |
9dce4196 | 3534 | asection *s; |
9dce4196 | 3535 | |
9dce4196 | 3536 | s = elt; |
415f38a6 AM |
3537 | if (!gas) |
3538 | s = s->output_section; | |
3539 | if (s != NULL | |
3540 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3541 | { |
db4677b8 | 3542 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3543 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3544 | ||
3545 | if (elf_sec->rel.hdr != NULL | |
3546 | && (gas | |
3547 | || (input_elf_sec->rel.hdr != NULL | |
3548 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3549 | { |
28e07a05 | 3550 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3551 | loc -= 4; |
3552 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3553 | } | |
28e07a05 AM |
3554 | if (elf_sec->rela.hdr != NULL |
3555 | && (gas | |
3556 | || (input_elf_sec->rela.hdr != NULL | |
3557 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3558 | { |
28e07a05 | 3559 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3560 | loc -= 4; |
3561 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3562 | } | |
01e1a5bc | 3563 | loc -= 4; |
db4677b8 | 3564 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3565 | } |
945906ff | 3566 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3567 | if (elt == first) |
3568 | break; | |
dbb410c3 AM |
3569 | } |
3570 | ||
7bdf4127 AB |
3571 | loc -= 4; |
3572 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3573 | |
9dce4196 | 3574 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3575 | } |
3576 | ||
bce964aa AM |
3577 | /* Given NAME, the name of a relocation section stripped of its |
3578 | .rel/.rela prefix, return the section in ABFD to which the | |
3579 | relocations apply. */ | |
bd53a53a L |
3580 | |
3581 | asection * | |
bce964aa AM |
3582 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3583 | { | |
3584 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3585 | section likely apply to .got.plt or .got section. */ | |
3586 | if (get_elf_backend_data (abfd)->want_got_plt | |
3587 | && strcmp (name, ".plt") == 0) | |
3588 | { | |
3589 | asection *sec; | |
3590 | ||
3591 | name = ".got.plt"; | |
3592 | sec = bfd_get_section_by_name (abfd, name); | |
3593 | if (sec != NULL) | |
3594 | return sec; | |
3595 | name = ".got"; | |
3596 | } | |
3597 | ||
3598 | return bfd_get_section_by_name (abfd, name); | |
3599 | } | |
3600 | ||
3601 | /* Return the section to which RELOC_SEC applies. */ | |
3602 | ||
3603 | static asection * | |
3604 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3605 | { |
3606 | const char *name; | |
3607 | unsigned int type; | |
3608 | bfd *abfd; | |
bce964aa | 3609 | const struct elf_backend_data *bed; |
bd53a53a L |
3610 | |
3611 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3612 | if (type != SHT_REL && type != SHT_RELA) | |
3613 | return NULL; | |
3614 | ||
3615 | /* We look up the section the relocs apply to by name. */ | |
3616 | name = reloc_sec->name; | |
bce964aa AM |
3617 | if (strncmp (name, ".rel", 4) != 0) |
3618 | return NULL; | |
3619 | name += 4; | |
3620 | if (type == SHT_RELA && *name++ != 'a') | |
3621 | return NULL; | |
bd53a53a | 3622 | |
bd53a53a | 3623 | abfd = reloc_sec->owner; |
bce964aa AM |
3624 | bed = get_elf_backend_data (abfd); |
3625 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3626 | } |
3627 | ||
252b5132 RH |
3628 | /* Assign all ELF section numbers. The dummy first section is handled here |
3629 | too. The link/info pointers for the standard section types are filled | |
3630 | in here too, while we're at it. */ | |
3631 | ||
b34976b6 | 3632 | static bfd_boolean |
da9f89d4 | 3633 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3634 | { |
3635 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3636 | asection *sec; | |
3e19fb8f | 3637 | unsigned int section_number; |
252b5132 | 3638 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3639 | struct bfd_elf_section_data *d; |
3516e984 | 3640 | bfd_boolean need_symtab; |
252b5132 RH |
3641 | |
3642 | section_number = 1; | |
3643 | ||
2b0f7ef9 JJ |
3644 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3645 | ||
da9f89d4 | 3646 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3647 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3648 | { |
ef53be89 | 3649 | size_t reloc_count = 0; |
14f2c699 | 3650 | |
da9f89d4 | 3651 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3652 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3653 | { |
5daa8fe7 | 3654 | d = elf_section_data (sec); |
da9f89d4 L |
3655 | |
3656 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3657 | { |
5daa8fe7 | 3658 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3659 | { |
3660 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3661 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3662 | abfd->section_count--; |
da9f89d4 | 3663 | } |
08a40648 | 3664 | else |
4fbb74a6 | 3665 | d->this_idx = section_number++; |
da9f89d4 | 3666 | } |
14f2c699 L |
3667 | |
3668 | /* Count relocations. */ | |
3669 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3670 | } |
14f2c699 L |
3671 | |
3672 | /* Clear HAS_RELOC if there are no relocations. */ | |
3673 | if (reloc_count == 0) | |
3674 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3675 | } |
3676 | ||
3677 | for (sec = abfd->sections; sec; sec = sec->next) | |
3678 | { | |
3679 | d = elf_section_data (sec); | |
3680 | ||
3681 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3682 | d->this_idx = section_number++; |
3e19fb8f L |
3683 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3684 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3685 | if (d->rel.hdr) |
2b0f7ef9 | 3686 | { |
d4730f92 | 3687 | d->rel.idx = section_number++; |
3e19fb8f L |
3688 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3689 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3690 | } |
d4730f92 BS |
3691 | else |
3692 | d->rel.idx = 0; | |
23bc299b | 3693 | |
d4730f92 | 3694 | if (d->rela.hdr) |
2b0f7ef9 | 3695 | { |
d4730f92 | 3696 | d->rela.idx = section_number++; |
3e19fb8f L |
3697 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3698 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3699 | } |
23bc299b | 3700 | else |
d4730f92 | 3701 | d->rela.idx = 0; |
252b5132 RH |
3702 | } |
3703 | ||
3516e984 L |
3704 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3705 | || (link_info == NULL | |
3706 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3707 | == HAS_RELOC))); | |
3708 | if (need_symtab) | |
252b5132 | 3709 | { |
12bd6957 | 3710 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3711 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3712 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3713 | { |
6a40cf0c NC |
3714 | elf_section_list * entry; |
3715 | ||
3716 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3717 | ||
3718 | entry = bfd_zalloc (abfd, sizeof * entry); | |
3719 | entry->ndx = section_number++; | |
3720 | elf_symtab_shndx_list (abfd) = entry; | |
3721 | entry->hdr.sh_name | |
9ad5cbcf | 3722 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3723 | ".symtab_shndx", FALSE); |
6a40cf0c | 3724 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3725 | return FALSE; |
9ad5cbcf | 3726 | } |
12bd6957 | 3727 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3728 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3729 | } |
3730 | ||
dd905818 NC |
3731 | elf_shstrtab_sec (abfd) = section_number++; |
3732 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3733 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3734 | ||
1c52a645 L |
3735 | if (section_number >= SHN_LORESERVE) |
3736 | { | |
695344c0 | 3737 | /* xgettext:c-format */ |
871b3ab2 | 3738 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3739 | abfd, section_number); |
3740 | return FALSE; | |
3741 | } | |
3742 | ||
9ad5cbcf | 3743 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3744 | elf_elfheader (abfd)->e_shnum = section_number; |
3745 | ||
3746 | /* Set up the list of section header pointers, in agreement with the | |
3747 | indices. */ | |
a50b1753 | 3748 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3749 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3750 | if (i_shdrp == NULL) |
b34976b6 | 3751 | return FALSE; |
252b5132 | 3752 | |
a50b1753 | 3753 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3754 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3755 | if (i_shdrp[0] == NULL) |
3756 | { | |
3757 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3758 | return FALSE; |
252b5132 | 3759 | } |
252b5132 RH |
3760 | |
3761 | elf_elfsections (abfd) = i_shdrp; | |
3762 | ||
12bd6957 | 3763 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3764 | if (need_symtab) |
252b5132 | 3765 | { |
12bd6957 | 3766 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3767 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3768 | { |
6a40cf0c NC |
3769 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3770 | BFD_ASSERT (entry != NULL); | |
3771 | i_shdrp[entry->ndx] = & entry->hdr; | |
3772 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3773 | } |
12bd6957 AM |
3774 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3775 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3776 | } |
38ce5b11 | 3777 | |
252b5132 RH |
3778 | for (sec = abfd->sections; sec; sec = sec->next) |
3779 | { | |
252b5132 | 3780 | asection *s; |
252b5132 | 3781 | |
91d6fa6a NC |
3782 | d = elf_section_data (sec); |
3783 | ||
252b5132 | 3784 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3785 | if (d->rel.idx != 0) |
3786 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3787 | if (d->rela.idx != 0) | |
3788 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3789 | |
3790 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3791 | ||
3792 | /* sh_link of a reloc section is the section index of the symbol | |
3793 | table. sh_info is the section index of the section to which | |
3794 | the relocation entries apply. */ | |
d4730f92 | 3795 | if (d->rel.idx != 0) |
252b5132 | 3796 | { |
12bd6957 | 3797 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3798 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3799 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3800 | } |
d4730f92 | 3801 | if (d->rela.idx != 0) |
23bc299b | 3802 | { |
12bd6957 | 3803 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3804 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3805 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3806 | } |
252b5132 | 3807 | |
38ce5b11 L |
3808 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3809 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3810 | { | |
3811 | s = elf_linked_to_section (sec); | |
3812 | if (s) | |
38ce5b11 | 3813 | { |
f2876037 | 3814 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3815 | if (link_info != NULL) |
38ce5b11 | 3816 | { |
f2876037 | 3817 | /* Check discarded linkonce section. */ |
dbaa2011 | 3818 | if (discarded_section (s)) |
38ce5b11 | 3819 | { |
ccd2ec6a | 3820 | asection *kept; |
4eca0228 | 3821 | _bfd_error_handler |
695344c0 | 3822 | /* xgettext:c-format */ |
871b3ab2 AM |
3823 | (_("%pB: sh_link of section `%pA' points to" |
3824 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3825 | abfd, d->this_hdr.bfd_section, |
3826 | s, s->owner); | |
3827 | /* Point to the kept section if it has the same | |
3828 | size as the discarded one. */ | |
c0f00686 | 3829 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3830 | if (kept == NULL) |
185d09ad | 3831 | { |
ccd2ec6a L |
3832 | bfd_set_error (bfd_error_bad_value); |
3833 | return FALSE; | |
185d09ad | 3834 | } |
ccd2ec6a | 3835 | s = kept; |
38ce5b11 | 3836 | } |
e424ecc8 | 3837 | |
ccd2ec6a L |
3838 | s = s->output_section; |
3839 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3840 | } |
f2876037 L |
3841 | else |
3842 | { | |
3843 | /* Handle objcopy. */ | |
3844 | if (s->output_section == NULL) | |
3845 | { | |
4eca0228 | 3846 | _bfd_error_handler |
695344c0 | 3847 | /* xgettext:c-format */ |
871b3ab2 AM |
3848 | (_("%pB: sh_link of section `%pA' points to" |
3849 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3850 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3851 | bfd_set_error (bfd_error_bad_value); | |
3852 | return FALSE; | |
3853 | } | |
3854 | s = s->output_section; | |
3855 | } | |
ccd2ec6a L |
3856 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3857 | } | |
3858 | else | |
3859 | { | |
3860 | /* PR 290: | |
3861 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3862 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3863 | sh_info fields. Hence we could get the situation | |
08a40648 | 3864 | where s is NULL. */ |
ccd2ec6a L |
3865 | const struct elf_backend_data *bed |
3866 | = get_elf_backend_data (abfd); | |
3867 | if (bed->link_order_error_handler) | |
3868 | bed->link_order_error_handler | |
695344c0 | 3869 | /* xgettext:c-format */ |
871b3ab2 | 3870 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3871 | abfd, sec); |
38ce5b11 L |
3872 | } |
3873 | } | |
3874 | ||
252b5132 RH |
3875 | switch (d->this_hdr.sh_type) |
3876 | { | |
3877 | case SHT_REL: | |
3878 | case SHT_RELA: | |
3879 | /* A reloc section which we are treating as a normal BFD | |
3880 | section. sh_link is the section index of the symbol | |
3881 | table. sh_info is the section index of the section to | |
3882 | which the relocation entries apply. We assume that an | |
3883 | allocated reloc section uses the dynamic symbol table. | |
3884 | FIXME: How can we be sure? */ | |
3885 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3886 | if (s != NULL) | |
3887 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3888 | ||
bce964aa | 3889 | s = elf_get_reloc_section (sec); |
252b5132 | 3890 | if (s != NULL) |
9ef5d938 L |
3891 | { |
3892 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3893 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3894 | } | |
252b5132 RH |
3895 | break; |
3896 | ||
3897 | case SHT_STRTAB: | |
3898 | /* We assume that a section named .stab*str is a stabs | |
3899 | string section. We look for a section with the same name | |
3900 | but without the trailing ``str'', and set its sh_link | |
3901 | field to point to this section. */ | |
0112cd26 | 3902 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3903 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3904 | { | |
3905 | size_t len; | |
3906 | char *alc; | |
3907 | ||
3908 | len = strlen (sec->name); | |
a50b1753 | 3909 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3910 | if (alc == NULL) |
b34976b6 | 3911 | return FALSE; |
d4c88bbb | 3912 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3913 | alc[len - 3] = '\0'; |
3914 | s = bfd_get_section_by_name (abfd, alc); | |
3915 | free (alc); | |
3916 | if (s != NULL) | |
3917 | { | |
3918 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3919 | ||
3920 | /* This is a .stab section. */ | |
0594c12d AM |
3921 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3922 | elf_section_data (s)->this_hdr.sh_entsize | |
3923 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3924 | } |
3925 | } | |
3926 | break; | |
3927 | ||
3928 | case SHT_DYNAMIC: | |
3929 | case SHT_DYNSYM: | |
3930 | case SHT_GNU_verneed: | |
3931 | case SHT_GNU_verdef: | |
3932 | /* sh_link is the section header index of the string table | |
3933 | used for the dynamic entries, or the symbol table, or the | |
3934 | version strings. */ | |
3935 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3936 | if (s != NULL) | |
3937 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3938 | break; | |
3939 | ||
7f1204bb JJ |
3940 | case SHT_GNU_LIBLIST: |
3941 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3942 | list used for the dynamic entries, or the symbol table, or |
3943 | the version strings. */ | |
7f1204bb JJ |
3944 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3945 | ? ".dynstr" : ".gnu.libstr"); | |
3946 | if (s != NULL) | |
3947 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3948 | break; | |
3949 | ||
252b5132 | 3950 | case SHT_HASH: |
fdc90cb4 | 3951 | case SHT_GNU_HASH: |
252b5132 RH |
3952 | case SHT_GNU_versym: |
3953 | /* sh_link is the section header index of the symbol table | |
3954 | this hash table or version table is for. */ | |
3955 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3956 | if (s != NULL) | |
3957 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3958 | break; | |
dbb410c3 AM |
3959 | |
3960 | case SHT_GROUP: | |
12bd6957 | 3961 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3962 | } |
3963 | } | |
3964 | ||
3e19fb8f L |
3965 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
3966 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
3967 | debug section name from .debug_* to .zdebug_* if needed. */ | |
3968 | ||
b34976b6 | 3969 | return TRUE; |
252b5132 RH |
3970 | } |
3971 | ||
5372391b | 3972 | static bfd_boolean |
217aa764 | 3973 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3974 | { |
3975 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3976 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3977 | if (bed->elf_backend_sym_is_global) |
3978 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3979 | |
e47bf690 | 3980 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3981 | || bfd_is_und_section (bfd_get_section (sym)) |
3982 | || bfd_is_com_section (bfd_get_section (sym))); | |
3983 | } | |
3984 | ||
76359541 TP |
3985 | /* Filter global symbols of ABFD to include in the import library. All |
3986 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
3987 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
3988 | the beginning of that array. | |
3989 | ||
3990 | Returns the number of symbols to keep. */ | |
3991 | ||
3992 | unsigned int | |
3993 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
3994 | asymbol **syms, long symcount) | |
3995 | { | |
3996 | long src_count, dst_count = 0; | |
3997 | ||
3998 | for (src_count = 0; src_count < symcount; src_count++) | |
3999 | { | |
4000 | asymbol *sym = syms[src_count]; | |
4001 | char *name = (char *) bfd_asymbol_name (sym); | |
4002 | struct bfd_link_hash_entry *h; | |
4003 | ||
4004 | if (!sym_is_global (abfd, sym)) | |
4005 | continue; | |
4006 | ||
4007 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4008 | if (h == NULL) |
4009 | continue; | |
76359541 TP |
4010 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4011 | continue; | |
76359541 TP |
4012 | if (h->linker_def || h->ldscript_def) |
4013 | continue; | |
4014 | ||
4015 | syms[dst_count++] = sym; | |
4016 | } | |
4017 | ||
4018 | syms[dst_count] = NULL; | |
4019 | ||
4020 | return dst_count; | |
4021 | } | |
4022 | ||
5372391b | 4023 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4024 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4025 | |
4026 | static bfd_boolean | |
4027 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4028 | { | |
c6d8cab4 L |
4029 | elf_symbol_type *type_ptr; |
4030 | ||
db0c309f NC |
4031 | if (sym == NULL) |
4032 | return FALSE; | |
4033 | ||
c6d8cab4 L |
4034 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4035 | return FALSE; | |
4036 | ||
db0c309f NC |
4037 | if (sym->section == NULL) |
4038 | return TRUE; | |
4039 | ||
c6d8cab4 L |
4040 | type_ptr = elf_symbol_from (abfd, sym); |
4041 | return ((type_ptr != NULL | |
4042 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4043 | && bfd_is_abs_section (sym->section)) | |
4044 | || !(sym->section->owner == abfd | |
db0c309f NC |
4045 | || (sym->section->output_section != NULL |
4046 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4047 | && sym->section->output_offset == 0) |
4048 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4049 | } |
4050 | ||
2633a79c AM |
4051 | /* Map symbol from it's internal number to the external number, moving |
4052 | all local symbols to be at the head of the list. */ | |
4053 | ||
b34976b6 | 4054 | static bfd_boolean |
12bd6957 | 4055 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4056 | { |
dc810e39 | 4057 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4058 | asymbol **syms = bfd_get_outsymbols (abfd); |
4059 | asymbol **sect_syms; | |
dc810e39 AM |
4060 | unsigned int num_locals = 0; |
4061 | unsigned int num_globals = 0; | |
4062 | unsigned int num_locals2 = 0; | |
4063 | unsigned int num_globals2 = 0; | |
7292b3ac | 4064 | unsigned int max_index = 0; |
dc810e39 | 4065 | unsigned int idx; |
252b5132 RH |
4066 | asection *asect; |
4067 | asymbol **new_syms; | |
252b5132 RH |
4068 | |
4069 | #ifdef DEBUG | |
4070 | fprintf (stderr, "elf_map_symbols\n"); | |
4071 | fflush (stderr); | |
4072 | #endif | |
4073 | ||
252b5132 RH |
4074 | for (asect = abfd->sections; asect; asect = asect->next) |
4075 | { | |
4076 | if (max_index < asect->index) | |
4077 | max_index = asect->index; | |
4078 | } | |
4079 | ||
4080 | max_index++; | |
a50b1753 | 4081 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4082 | if (sect_syms == NULL) |
b34976b6 | 4083 | return FALSE; |
252b5132 | 4084 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4085 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4086 | |
079e9a2f AM |
4087 | /* Init sect_syms entries for any section symbols we have already |
4088 | decided to output. */ | |
252b5132 RH |
4089 | for (idx = 0; idx < symcount; idx++) |
4090 | { | |
dc810e39 | 4091 | asymbol *sym = syms[idx]; |
c044fabd | 4092 | |
252b5132 | 4093 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4094 | && sym->value == 0 |
2633a79c AM |
4095 | && !ignore_section_sym (abfd, sym) |
4096 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4097 | { |
5372391b | 4098 | asection *sec = sym->section; |
252b5132 | 4099 | |
5372391b AM |
4100 | if (sec->owner != abfd) |
4101 | sec = sec->output_section; | |
252b5132 | 4102 | |
5372391b | 4103 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4104 | } |
4105 | } | |
4106 | ||
252b5132 RH |
4107 | /* Classify all of the symbols. */ |
4108 | for (idx = 0; idx < symcount; idx++) | |
4109 | { | |
2633a79c | 4110 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4111 | num_globals++; |
2633a79c AM |
4112 | else if (!ignore_section_sym (abfd, syms[idx])) |
4113 | num_locals++; | |
252b5132 | 4114 | } |
079e9a2f | 4115 | |
5372391b | 4116 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4117 | sections will already have a section symbol in outsymbols, but |
4118 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4119 | at least in that case. */ | |
252b5132 RH |
4120 | for (asect = abfd->sections; asect; asect = asect->next) |
4121 | { | |
079e9a2f | 4122 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4123 | { |
079e9a2f | 4124 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4125 | num_locals++; |
4126 | else | |
4127 | num_globals++; | |
252b5132 RH |
4128 | } |
4129 | } | |
4130 | ||
4131 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4132 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4133 | sizeof (asymbol *)); |
dc810e39 | 4134 | |
252b5132 | 4135 | if (new_syms == NULL) |
b34976b6 | 4136 | return FALSE; |
252b5132 RH |
4137 | |
4138 | for (idx = 0; idx < symcount; idx++) | |
4139 | { | |
4140 | asymbol *sym = syms[idx]; | |
dc810e39 | 4141 | unsigned int i; |
252b5132 | 4142 | |
2633a79c AM |
4143 | if (sym_is_global (abfd, sym)) |
4144 | i = num_locals + num_globals2++; | |
4145 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4146 | i = num_locals2++; |
4147 | else | |
2633a79c | 4148 | continue; |
252b5132 RH |
4149 | new_syms[i] = sym; |
4150 | sym->udata.i = i + 1; | |
4151 | } | |
4152 | for (asect = abfd->sections; asect; asect = asect->next) | |
4153 | { | |
079e9a2f | 4154 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4155 | { |
079e9a2f | 4156 | asymbol *sym = asect->symbol; |
dc810e39 | 4157 | unsigned int i; |
252b5132 | 4158 | |
079e9a2f | 4159 | sect_syms[asect->index] = sym; |
252b5132 RH |
4160 | if (!sym_is_global (abfd, sym)) |
4161 | i = num_locals2++; | |
4162 | else | |
4163 | i = num_locals + num_globals2++; | |
4164 | new_syms[i] = sym; | |
4165 | sym->udata.i = i + 1; | |
4166 | } | |
4167 | } | |
4168 | ||
4169 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4170 | ||
12bd6957 | 4171 | *pnum_locals = num_locals; |
b34976b6 | 4172 | return TRUE; |
252b5132 RH |
4173 | } |
4174 | ||
4175 | /* Align to the maximum file alignment that could be required for any | |
4176 | ELF data structure. */ | |
4177 | ||
268b6b39 | 4178 | static inline file_ptr |
217aa764 | 4179 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4180 | { |
4181 | return (off + align - 1) & ~(align - 1); | |
4182 | } | |
4183 | ||
4184 | /* Assign a file position to a section, optionally aligning to the | |
4185 | required section alignment. */ | |
4186 | ||
217aa764 AM |
4187 | file_ptr |
4188 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4189 | file_ptr offset, | |
4190 | bfd_boolean align) | |
252b5132 | 4191 | { |
72de5009 AM |
4192 | if (align && i_shdrp->sh_addralign > 1) |
4193 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4194 | i_shdrp->sh_offset = offset; |
4195 | if (i_shdrp->bfd_section != NULL) | |
4196 | i_shdrp->bfd_section->filepos = offset; | |
4197 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4198 | offset += i_shdrp->sh_size; | |
4199 | return offset; | |
4200 | } | |
4201 | ||
4202 | /* Compute the file positions we are going to put the sections at, and | |
4203 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4204 | is not NULL, this is being called by the ELF backend linker. */ | |
4205 | ||
b34976b6 | 4206 | bfd_boolean |
217aa764 AM |
4207 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4208 | struct bfd_link_info *link_info) | |
252b5132 | 4209 | { |
9c5bfbb7 | 4210 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4211 | struct fake_section_arg fsargs; |
b34976b6 | 4212 | bfd_boolean failed; |
ef10c3ac | 4213 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4214 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4215 | bfd_boolean need_symtab; |
252b5132 RH |
4216 | |
4217 | if (abfd->output_has_begun) | |
b34976b6 | 4218 | return TRUE; |
252b5132 RH |
4219 | |
4220 | /* Do any elf backend specific processing first. */ | |
4221 | if (bed->elf_backend_begin_write_processing) | |
4222 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4223 | ||
4224 | if (! prep_headers (abfd)) | |
b34976b6 | 4225 | return FALSE; |
252b5132 | 4226 | |
e6c51ed4 | 4227 | /* Post process the headers if necessary. */ |
78245035 | 4228 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4229 | |
d4730f92 BS |
4230 | fsargs.failed = FALSE; |
4231 | fsargs.link_info = link_info; | |
4232 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4233 | if (fsargs.failed) | |
b34976b6 | 4234 | return FALSE; |
252b5132 | 4235 | |
da9f89d4 | 4236 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4237 | return FALSE; |
252b5132 RH |
4238 | |
4239 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4240 | need_symtab = (link_info == NULL |
4241 | && (bfd_get_symcount (abfd) > 0 | |
4242 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4243 | == HAS_RELOC))); | |
4244 | if (need_symtab) | |
252b5132 RH |
4245 | { |
4246 | /* Non-zero if doing a relocatable link. */ | |
4247 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4248 | ||
4249 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4250 | return FALSE; |
252b5132 RH |
4251 | } |
4252 | ||
d4730f92 | 4253 | failed = FALSE; |
1126897b | 4254 | if (link_info == NULL) |
dbb410c3 | 4255 | { |
1126897b | 4256 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4257 | if (failed) |
b34976b6 | 4258 | return FALSE; |
dbb410c3 AM |
4259 | } |
4260 | ||
252b5132 RH |
4261 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4262 | /* sh_name was set in prep_headers. */ | |
4263 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4264 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4265 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4266 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4267 | shstrtab_hdr->sh_entsize = 0; |
4268 | shstrtab_hdr->sh_link = 0; | |
4269 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4270 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4271 | shstrtab_hdr->sh_addralign = 1; |
4272 | ||
c84fca4d | 4273 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4274 | return FALSE; |
252b5132 | 4275 | |
3516e984 | 4276 | if (need_symtab) |
252b5132 RH |
4277 | { |
4278 | file_ptr off; | |
4279 | Elf_Internal_Shdr *hdr; | |
4280 | ||
12bd6957 | 4281 | off = elf_next_file_pos (abfd); |
252b5132 | 4282 | |
6a40cf0c | 4283 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4284 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4285 | |
6a40cf0c NC |
4286 | if (elf_symtab_shndx_list (abfd) != NULL) |
4287 | { | |
4288 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4289 | if (hdr->sh_size != 0) | |
4290 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4291 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4292 | } | |
9ad5cbcf | 4293 | |
252b5132 | 4294 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4295 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4296 | |
12bd6957 | 4297 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4298 | |
4299 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4300 | out. */ |
252b5132 | 4301 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4302 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4303 | return FALSE; |
ef10c3ac | 4304 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4305 | } |
4306 | ||
b34976b6 | 4307 | abfd->output_has_begun = TRUE; |
252b5132 | 4308 | |
b34976b6 | 4309 | return TRUE; |
252b5132 RH |
4310 | } |
4311 | ||
8ded5a0f AM |
4312 | /* Make an initial estimate of the size of the program header. If we |
4313 | get the number wrong here, we'll redo section placement. */ | |
4314 | ||
4315 | static bfd_size_type | |
4316 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4317 | { | |
4318 | size_t segs; | |
4319 | asection *s; | |
2b05f1b7 | 4320 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4321 | |
4322 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4323 | and one for data. */ | |
4324 | segs = 2; | |
4325 | ||
4326 | s = bfd_get_section_by_name (abfd, ".interp"); | |
4327 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
4328 | { | |
4329 | /* If we have a loadable interpreter section, we need a | |
4330 | PT_INTERP segment. In this case, assume we also need a | |
4331 | PT_PHDR segment, although that may not be true for all | |
4332 | targets. */ | |
e9a38e0f | 4333 | segs += 2; |
8ded5a0f AM |
4334 | } |
4335 | ||
4336 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4337 | { | |
4338 | /* We need a PT_DYNAMIC segment. */ | |
4339 | ++segs; | |
f210dcff | 4340 | } |
08a40648 | 4341 | |
ceae84aa | 4342 | if (info != NULL && info->relro) |
f210dcff L |
4343 | { |
4344 | /* We need a PT_GNU_RELRO segment. */ | |
4345 | ++segs; | |
8ded5a0f AM |
4346 | } |
4347 | ||
12bd6957 | 4348 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4349 | { |
4350 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4351 | ++segs; | |
4352 | } | |
4353 | ||
12bd6957 | 4354 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4355 | { |
2b05f1b7 L |
4356 | /* We need a PT_GNU_STACK segment. */ |
4357 | ++segs; | |
4358 | } | |
94b11780 | 4359 | |
2b05f1b7 L |
4360 | for (s = abfd->sections; s != NULL; s = s->next) |
4361 | { | |
8ded5a0f | 4362 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 4363 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
4364 | { |
4365 | /* We need a PT_NOTE segment. */ | |
4366 | ++segs; | |
1c5265b5 JJ |
4367 | /* Try to create just one PT_NOTE segment |
4368 | for all adjacent loadable .note* sections. | |
4369 | gABI requires that within a PT_NOTE segment | |
4370 | (and also inside of each SHT_NOTE section) | |
4371 | each note is padded to a multiple of 4 size, | |
4372 | so we check whether the sections are correctly | |
4373 | aligned. */ | |
4374 | if (s->alignment_power == 2) | |
4375 | while (s->next != NULL | |
4376 | && s->next->alignment_power == 2 | |
4377 | && (s->next->flags & SEC_LOAD) != 0 | |
4378 | && CONST_STRNEQ (s->next->name, ".note")) | |
4379 | s = s->next; | |
8ded5a0f AM |
4380 | } |
4381 | } | |
4382 | ||
4383 | for (s = abfd->sections; s != NULL; s = s->next) | |
4384 | { | |
4385 | if (s->flags & SEC_THREAD_LOCAL) | |
4386 | { | |
4387 | /* We need a PT_TLS segment. */ | |
4388 | ++segs; | |
4389 | break; | |
4390 | } | |
4391 | } | |
4392 | ||
2b05f1b7 | 4393 | bed = get_elf_backend_data (abfd); |
a91e1603 L |
4394 | |
4395 | if ((abfd->flags & D_PAGED) != 0) | |
4396 | { | |
4397 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4398 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4399 | for (s = abfd->sections; s != NULL; s = s->next) | |
4400 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4401 | { | |
4402 | if (elf_section_data (s)->this_hdr.sh_info | |
4403 | > PT_GNU_MBIND_NUM) | |
4404 | { | |
4405 | _bfd_error_handler | |
4406 | /* xgettext:c-format */ | |
871b3ab2 | 4407 | (_("%pB: GNU_MBIN section `%pA' has invalid sh_info field: %d"), |
a91e1603 L |
4408 | abfd, s, elf_section_data (s)->this_hdr.sh_info); |
4409 | continue; | |
4410 | } | |
4411 | /* Align mbind section to page size. */ | |
4412 | if (s->alignment_power < page_align_power) | |
4413 | s->alignment_power = page_align_power; | |
4414 | segs ++; | |
4415 | } | |
4416 | } | |
4417 | ||
4418 | /* Let the backend count up any program headers it might need. */ | |
4419 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4420 | { |
4421 | int a; | |
4422 | ||
4423 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4424 | if (a == -1) | |
4425 | abort (); | |
4426 | segs += a; | |
4427 | } | |
4428 | ||
4429 | return segs * bed->s->sizeof_phdr; | |
4430 | } | |
4431 | ||
2ea37f1c NC |
4432 | /* Find the segment that contains the output_section of section. */ |
4433 | ||
4434 | Elf_Internal_Phdr * | |
4435 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4436 | { | |
4437 | struct elf_segment_map *m; | |
4438 | Elf_Internal_Phdr *p; | |
4439 | ||
12bd6957 | 4440 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4441 | m != NULL; |
4442 | m = m->next, p++) | |
4443 | { | |
4444 | int i; | |
4445 | ||
4446 | for (i = m->count - 1; i >= 0; i--) | |
4447 | if (m->sections[i] == section) | |
4448 | return p; | |
4449 | } | |
4450 | ||
4451 | return NULL; | |
4452 | } | |
4453 | ||
252b5132 RH |
4454 | /* Create a mapping from a set of sections to a program segment. */ |
4455 | ||
217aa764 AM |
4456 | static struct elf_segment_map * |
4457 | make_mapping (bfd *abfd, | |
4458 | asection **sections, | |
4459 | unsigned int from, | |
4460 | unsigned int to, | |
4461 | bfd_boolean phdr) | |
252b5132 RH |
4462 | { |
4463 | struct elf_segment_map *m; | |
4464 | unsigned int i; | |
4465 | asection **hdrpp; | |
dc810e39 | 4466 | bfd_size_type amt; |
252b5132 | 4467 | |
dc810e39 AM |
4468 | amt = sizeof (struct elf_segment_map); |
4469 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 4470 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4471 | if (m == NULL) |
4472 | return NULL; | |
4473 | m->next = NULL; | |
4474 | m->p_type = PT_LOAD; | |
4475 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4476 | m->sections[i - from] = *hdrpp; | |
4477 | m->count = to - from; | |
4478 | ||
4479 | if (from == 0 && phdr) | |
4480 | { | |
4481 | /* Include the headers in the first PT_LOAD segment. */ | |
4482 | m->includes_filehdr = 1; | |
4483 | m->includes_phdrs = 1; | |
4484 | } | |
4485 | ||
4486 | return m; | |
4487 | } | |
4488 | ||
229fcec5 MM |
4489 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4490 | on failure. */ | |
4491 | ||
4492 | struct elf_segment_map * | |
4493 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4494 | { | |
4495 | struct elf_segment_map *m; | |
4496 | ||
a50b1753 | 4497 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4498 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4499 | if (m == NULL) |
4500 | return NULL; | |
4501 | m->next = NULL; | |
4502 | m->p_type = PT_DYNAMIC; | |
4503 | m->count = 1; | |
4504 | m->sections[0] = dynsec; | |
08a40648 | 4505 | |
229fcec5 MM |
4506 | return m; |
4507 | } | |
4508 | ||
8ded5a0f | 4509 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4510 | |
b34976b6 | 4511 | static bfd_boolean |
3dea8fca AM |
4512 | elf_modify_segment_map (bfd *abfd, |
4513 | struct bfd_link_info *info, | |
4514 | bfd_boolean remove_empty_load) | |
252b5132 | 4515 | { |
252e386e | 4516 | struct elf_segment_map **m; |
8ded5a0f | 4517 | const struct elf_backend_data *bed; |
252b5132 | 4518 | |
8ded5a0f AM |
4519 | /* The placement algorithm assumes that non allocated sections are |
4520 | not in PT_LOAD segments. We ensure this here by removing such | |
4521 | sections from the segment map. We also remove excluded | |
252e386e AM |
4522 | sections. Finally, any PT_LOAD segment without sections is |
4523 | removed. */ | |
12bd6957 | 4524 | m = &elf_seg_map (abfd); |
252e386e | 4525 | while (*m) |
8ded5a0f AM |
4526 | { |
4527 | unsigned int i, new_count; | |
252b5132 | 4528 | |
252e386e | 4529 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4530 | { |
252e386e AM |
4531 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4532 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4533 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4534 | { |
252e386e AM |
4535 | (*m)->sections[new_count] = (*m)->sections[i]; |
4536 | new_count++; | |
8ded5a0f AM |
4537 | } |
4538 | } | |
252e386e | 4539 | (*m)->count = new_count; |
252b5132 | 4540 | |
1a9ccd70 NC |
4541 | if (remove_empty_load |
4542 | && (*m)->p_type == PT_LOAD | |
4543 | && (*m)->count == 0 | |
4544 | && !(*m)->includes_phdrs) | |
252e386e AM |
4545 | *m = (*m)->next; |
4546 | else | |
4547 | m = &(*m)->next; | |
8ded5a0f | 4548 | } |
252b5132 | 4549 | |
8ded5a0f AM |
4550 | bed = get_elf_backend_data (abfd); |
4551 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4552 | { |
252e386e | 4553 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4554 | return FALSE; |
252b5132 | 4555 | } |
252b5132 | 4556 | |
8ded5a0f AM |
4557 | return TRUE; |
4558 | } | |
252b5132 | 4559 | |
dbc88fc1 AM |
4560 | #define IS_TBSS(s) \ |
4561 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4562 | ||
8ded5a0f | 4563 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4564 | |
8ded5a0f AM |
4565 | bfd_boolean |
4566 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4567 | { | |
4568 | unsigned int count; | |
4569 | struct elf_segment_map *m; | |
4570 | asection **sections = NULL; | |
4571 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4572 | bfd_boolean no_user_phdrs; |
252b5132 | 4573 | |
12bd6957 | 4574 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4575 | |
4576 | if (info != NULL) | |
4577 | info->user_phdrs = !no_user_phdrs; | |
4578 | ||
3dea8fca | 4579 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4580 | { |
8ded5a0f AM |
4581 | asection *s; |
4582 | unsigned int i; | |
4583 | struct elf_segment_map *mfirst; | |
4584 | struct elf_segment_map **pm; | |
4585 | asection *last_hdr; | |
4586 | bfd_vma last_size; | |
4587 | unsigned int phdr_index; | |
4588 | bfd_vma maxpagesize; | |
4589 | asection **hdrpp; | |
4590 | bfd_boolean phdr_in_segment = TRUE; | |
4591 | bfd_boolean writable; | |
2888249f | 4592 | bfd_boolean executable; |
8ded5a0f AM |
4593 | int tls_count = 0; |
4594 | asection *first_tls = NULL; | |
a91e1603 | 4595 | asection *first_mbind = NULL; |
8ded5a0f AM |
4596 | asection *dynsec, *eh_frame_hdr; |
4597 | bfd_size_type amt; | |
8d06853e | 4598 | bfd_vma addr_mask, wrap_to = 0; |
1a9ccd70 | 4599 | bfd_boolean linker_created_pt_phdr_segment = FALSE; |
252b5132 | 4600 | |
8ded5a0f | 4601 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4602 | |
a50b1753 | 4603 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4604 | sizeof (asection *)); |
8ded5a0f | 4605 | if (sections == NULL) |
252b5132 | 4606 | goto error_return; |
252b5132 | 4607 | |
8d06853e AM |
4608 | /* Calculate top address, avoiding undefined behaviour of shift |
4609 | left operator when shift count is equal to size of type | |
4610 | being shifted. */ | |
4611 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4612 | addr_mask = (addr_mask << 1) + 1; | |
4613 | ||
8ded5a0f AM |
4614 | i = 0; |
4615 | for (s = abfd->sections; s != NULL; s = s->next) | |
4616 | { | |
4617 | if ((s->flags & SEC_ALLOC) != 0) | |
4618 | { | |
4619 | sections[i] = s; | |
4620 | ++i; | |
8d06853e AM |
4621 | /* A wrapping section potentially clashes with header. */ |
4622 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4623 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4624 | } |
4625 | } | |
4626 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4627 | count = i; | |
252b5132 | 4628 | |
8ded5a0f | 4629 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4630 | |
8ded5a0f | 4631 | /* Build the mapping. */ |
252b5132 | 4632 | |
8ded5a0f AM |
4633 | mfirst = NULL; |
4634 | pm = &mfirst; | |
252b5132 | 4635 | |
8ded5a0f AM |
4636 | /* If we have a .interp section, then create a PT_PHDR segment for |
4637 | the program headers and a PT_INTERP segment for the .interp | |
4638 | section. */ | |
4639 | s = bfd_get_section_by_name (abfd, ".interp"); | |
4640 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
4641 | { | |
4642 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4643 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4644 | if (m == NULL) |
4645 | goto error_return; | |
4646 | m->next = NULL; | |
4647 | m->p_type = PT_PHDR; | |
f882209d | 4648 | m->p_flags = PF_R; |
8ded5a0f AM |
4649 | m->p_flags_valid = 1; |
4650 | m->includes_phdrs = 1; | |
1a9ccd70 | 4651 | linker_created_pt_phdr_segment = TRUE; |
8ded5a0f AM |
4652 | *pm = m; |
4653 | pm = &m->next; | |
252b5132 | 4654 | |
8ded5a0f | 4655 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4656 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4657 | if (m == NULL) |
4658 | goto error_return; | |
4659 | m->next = NULL; | |
4660 | m->p_type = PT_INTERP; | |
4661 | m->count = 1; | |
4662 | m->sections[0] = s; | |
4663 | ||
4664 | *pm = m; | |
4665 | pm = &m->next; | |
252b5132 | 4666 | } |
8ded5a0f AM |
4667 | |
4668 | /* Look through the sections. We put sections in the same program | |
4669 | segment when the start of the second section can be placed within | |
4670 | a few bytes of the end of the first section. */ | |
4671 | last_hdr = NULL; | |
4672 | last_size = 0; | |
4673 | phdr_index = 0; | |
4674 | maxpagesize = bed->maxpagesize; | |
063bb025 NC |
4675 | /* PR 17512: file: c8455299. |
4676 | Avoid divide-by-zero errors later on. | |
4677 | FIXME: Should we abort if the maxpagesize is zero ? */ | |
4678 | if (maxpagesize == 0) | |
4679 | maxpagesize = 1; | |
8ded5a0f | 4680 | writable = FALSE; |
2888249f | 4681 | executable = FALSE; |
8ded5a0f AM |
4682 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4683 | if (dynsec != NULL | |
4684 | && (dynsec->flags & SEC_LOAD) == 0) | |
4685 | dynsec = NULL; | |
4686 | ||
4687 | /* Deal with -Ttext or something similar such that the first section | |
4688 | is not adjacent to the program headers. This is an | |
4689 | approximation, since at this point we don't know exactly how many | |
4690 | program headers we will need. */ | |
4691 | if (count > 0) | |
252b5132 | 4692 | { |
12bd6957 | 4693 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 4694 | |
62d7a5f6 | 4695 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 4696 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 4697 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 4698 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
4699 | || (sections[0]->lma & addr_mask) < phdr_size |
4700 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
4701 | < phdr_size % maxpagesize) | |
4702 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
1a9ccd70 NC |
4703 | { |
4704 | /* PR 20815: The ELF standard says that a PT_PHDR segment, if | |
4705 | present, must be included as part of the memory image of the | |
4706 | program. Ie it must be part of a PT_LOAD segment as well. | |
4707 | If we have had to create our own PT_PHDR segment, but it is | |
4708 | not going to be covered by the first PT_LOAD segment, then | |
4709 | force the inclusion if we can... */ | |
4710 | if ((abfd->flags & D_PAGED) != 0 | |
4711 | && linker_created_pt_phdr_segment) | |
4712 | phdr_in_segment = TRUE; | |
4713 | else | |
4714 | phdr_in_segment = FALSE; | |
4715 | } | |
252b5132 RH |
4716 | } |
4717 | ||
8ded5a0f | 4718 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4719 | { |
8ded5a0f AM |
4720 | asection *hdr; |
4721 | bfd_boolean new_segment; | |
4722 | ||
4723 | hdr = *hdrpp; | |
4724 | ||
4725 | /* See if this section and the last one will fit in the same | |
4726 | segment. */ | |
4727 | ||
4728 | if (last_hdr == NULL) | |
4729 | { | |
4730 | /* If we don't have a segment yet, then we don't need a new | |
4731 | one (we build the last one after this loop). */ | |
4732 | new_segment = FALSE; | |
4733 | } | |
4734 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4735 | { | |
4736 | /* If this section has a different relation between the | |
4737 | virtual address and the load address, then we need a new | |
4738 | segment. */ | |
4739 | new_segment = TRUE; | |
4740 | } | |
b5599592 AM |
4741 | else if (hdr->lma < last_hdr->lma + last_size |
4742 | || last_hdr->lma + last_size < last_hdr->lma) | |
4743 | { | |
4744 | /* If this section has a load address that makes it overlap | |
4745 | the previous section, then we need a new segment. */ | |
4746 | new_segment = TRUE; | |
4747 | } | |
76cb3a89 AM |
4748 | else if ((abfd->flags & D_PAGED) != 0 |
4749 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4750 | == (hdr->lma & -maxpagesize))) | |
4751 | { | |
4752 | /* If we are demand paged then we can't map two disk | |
4753 | pages onto the same memory page. */ | |
4754 | new_segment = FALSE; | |
4755 | } | |
39948a60 NC |
4756 | /* In the next test we have to be careful when last_hdr->lma is close |
4757 | to the end of the address space. If the aligned address wraps | |
4758 | around to the start of the address space, then there are no more | |
4759 | pages left in memory and it is OK to assume that the current | |
4760 | section can be included in the current segment. */ | |
76cb3a89 AM |
4761 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4762 | + maxpagesize > last_hdr->lma) | |
4763 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4764 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4765 | { |
4766 | /* If putting this section in this segment would force us to | |
4767 | skip a page in the segment, then we need a new segment. */ | |
4768 | new_segment = TRUE; | |
4769 | } | |
4770 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4771 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4772 | { |
e5654c0f AM |
4773 | /* We don't want to put a loaded section after a |
4774 | nonloaded (ie. bss style) section in the same segment | |
4775 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4776 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4777 | new_segment = TRUE; |
4778 | } | |
4779 | else if ((abfd->flags & D_PAGED) == 0) | |
4780 | { | |
4781 | /* If the file is not demand paged, which means that we | |
4782 | don't require the sections to be correctly aligned in the | |
4783 | file, then there is no other reason for a new segment. */ | |
4784 | new_segment = FALSE; | |
4785 | } | |
2888249f L |
4786 | else if (info != NULL |
4787 | && info->separate_code | |
4788 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4789 | { | |
4790 | new_segment = TRUE; | |
4791 | } | |
8ded5a0f | 4792 | else if (! writable |
76cb3a89 | 4793 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4794 | { |
4795 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4796 | segment. */ |
8ded5a0f AM |
4797 | new_segment = TRUE; |
4798 | } | |
4799 | else | |
4800 | { | |
4801 | /* Otherwise, we can use the same segment. */ | |
4802 | new_segment = FALSE; | |
4803 | } | |
4804 | ||
2889e75b | 4805 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4806 | if (last_hdr != NULL |
4807 | && info != NULL | |
4808 | && info->callbacks->override_segment_assignment != NULL) | |
4809 | new_segment | |
4810 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4811 | last_hdr, | |
4812 | new_segment); | |
2889e75b | 4813 | |
8ded5a0f AM |
4814 | if (! new_segment) |
4815 | { | |
4816 | if ((hdr->flags & SEC_READONLY) == 0) | |
4817 | writable = TRUE; | |
2888249f L |
4818 | if ((hdr->flags & SEC_CODE) != 0) |
4819 | executable = TRUE; | |
8ded5a0f AM |
4820 | last_hdr = hdr; |
4821 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4822 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4823 | continue; |
4824 | } | |
4825 | ||
4826 | /* We need a new program segment. We must create a new program | |
4827 | header holding all the sections from phdr_index until hdr. */ | |
4828 | ||
4829 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4830 | if (m == NULL) | |
4831 | goto error_return; | |
4832 | ||
4833 | *pm = m; | |
4834 | pm = &m->next; | |
4835 | ||
252b5132 | 4836 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4837 | writable = TRUE; |
8ded5a0f AM |
4838 | else |
4839 | writable = FALSE; | |
4840 | ||
2888249f L |
4841 | if ((hdr->flags & SEC_CODE) == 0) |
4842 | executable = FALSE; | |
4843 | else | |
4844 | executable = TRUE; | |
4845 | ||
baaff79e JJ |
4846 | last_hdr = hdr; |
4847 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4848 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4849 | phdr_index = i; |
4850 | phdr_in_segment = FALSE; | |
252b5132 RH |
4851 | } |
4852 | ||
86b2281f AM |
4853 | /* Create a final PT_LOAD program segment, but not if it's just |
4854 | for .tbss. */ | |
4855 | if (last_hdr != NULL | |
4856 | && (i - phdr_index != 1 | |
dbc88fc1 | 4857 | || !IS_TBSS (last_hdr))) |
8ded5a0f AM |
4858 | { |
4859 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4860 | if (m == NULL) | |
4861 | goto error_return; | |
252b5132 | 4862 | |
8ded5a0f AM |
4863 | *pm = m; |
4864 | pm = &m->next; | |
4865 | } | |
252b5132 | 4866 | |
8ded5a0f AM |
4867 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4868 | if (dynsec != NULL) | |
4869 | { | |
4870 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4871 | if (m == NULL) | |
4872 | goto error_return; | |
4873 | *pm = m; | |
4874 | pm = &m->next; | |
4875 | } | |
252b5132 | 4876 | |
1c5265b5 JJ |
4877 | /* For each batch of consecutive loadable .note sections, |
4878 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4879 | because if we link together nonloadable .note sections and | |
4880 | loadable .note sections, we will generate two .note sections | |
4881 | in the output file. FIXME: Using names for section types is | |
4882 | bogus anyhow. */ | |
8ded5a0f AM |
4883 | for (s = abfd->sections; s != NULL; s = s->next) |
4884 | { | |
4885 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4886 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4887 | { |
1c5265b5 | 4888 | asection *s2; |
91d6fa6a NC |
4889 | |
4890 | count = 1; | |
8ded5a0f | 4891 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4892 | if (s->alignment_power == 2) |
4893 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4894 | { |
4895 | if (s2->next->alignment_power == 2 | |
4896 | && (s2->next->flags & SEC_LOAD) != 0 | |
4897 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4898 | && align_power (s2->lma + s2->size, 2) |
4899 | == s2->next->lma) | |
55b581a6 JJ |
4900 | count++; |
4901 | else | |
4902 | break; | |
4903 | } | |
1c5265b5 | 4904 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4905 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4906 | if (m == NULL) |
4907 | goto error_return; | |
4908 | m->next = NULL; | |
4909 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4910 | m->count = count; |
4911 | while (count > 1) | |
4912 | { | |
4913 | m->sections[m->count - count--] = s; | |
4914 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4915 | s = s->next; | |
4916 | } | |
4917 | m->sections[m->count - 1] = s; | |
4918 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4919 | *pm = m; |
4920 | pm = &m->next; | |
4921 | } | |
4922 | if (s->flags & SEC_THREAD_LOCAL) | |
4923 | { | |
4924 | if (! tls_count) | |
4925 | first_tls = s; | |
4926 | tls_count++; | |
4927 | } | |
a91e1603 L |
4928 | if (first_mbind == NULL |
4929 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
4930 | first_mbind = s; | |
8ded5a0f | 4931 | } |
252b5132 | 4932 | |
8ded5a0f AM |
4933 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4934 | if (tls_count > 0) | |
4935 | { | |
8ded5a0f AM |
4936 | amt = sizeof (struct elf_segment_map); |
4937 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4938 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4939 | if (m == NULL) |
4940 | goto error_return; | |
4941 | m->next = NULL; | |
4942 | m->p_type = PT_TLS; | |
4943 | m->count = tls_count; | |
4944 | /* Mandated PF_R. */ | |
4945 | m->p_flags = PF_R; | |
4946 | m->p_flags_valid = 1; | |
d923cae0 | 4947 | s = first_tls; |
91d6fa6a | 4948 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 4949 | { |
d923cae0 L |
4950 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
4951 | { | |
4952 | _bfd_error_handler | |
871b3ab2 | 4953 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
4954 | s = first_tls; |
4955 | i = 0; | |
4956 | while (i < (unsigned int) tls_count) | |
4957 | { | |
4958 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
4959 | { | |
871b3ab2 | 4960 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
4961 | i++; |
4962 | } | |
4963 | else | |
871b3ab2 | 4964 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
4965 | s = s->next; |
4966 | } | |
4967 | bfd_set_error (bfd_error_bad_value); | |
4968 | goto error_return; | |
4969 | } | |
4970 | m->sections[i] = s; | |
4971 | s = s->next; | |
8ded5a0f | 4972 | } |
252b5132 | 4973 | |
8ded5a0f AM |
4974 | *pm = m; |
4975 | pm = &m->next; | |
4976 | } | |
252b5132 | 4977 | |
a91e1603 L |
4978 | if (first_mbind && (abfd->flags & D_PAGED) != 0) |
4979 | for (s = first_mbind; s != NULL; s = s->next) | |
4980 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
4981 | && (elf_section_data (s)->this_hdr.sh_info | |
4982 | <= PT_GNU_MBIND_NUM)) | |
4983 | { | |
4984 | /* Mandated PF_R. */ | |
4985 | unsigned long p_flags = PF_R; | |
4986 | if ((s->flags & SEC_READONLY) == 0) | |
4987 | p_flags |= PF_W; | |
4988 | if ((s->flags & SEC_CODE) != 0) | |
4989 | p_flags |= PF_X; | |
4990 | ||
4991 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
4992 | m = bfd_zalloc (abfd, amt); | |
4993 | if (m == NULL) | |
4994 | goto error_return; | |
4995 | m->next = NULL; | |
4996 | m->p_type = (PT_GNU_MBIND_LO | |
4997 | + elf_section_data (s)->this_hdr.sh_info); | |
4998 | m->count = 1; | |
4999 | m->p_flags_valid = 1; | |
5000 | m->sections[0] = s; | |
5001 | m->p_flags = p_flags; | |
5002 | ||
5003 | *pm = m; | |
5004 | pm = &m->next; | |
5005 | } | |
5006 | ||
8ded5a0f AM |
5007 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5008 | segment. */ | |
12bd6957 | 5009 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5010 | if (eh_frame_hdr != NULL |
5011 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5012 | { |
dc810e39 | 5013 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5014 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5015 | if (m == NULL) |
5016 | goto error_return; | |
5017 | m->next = NULL; | |
8ded5a0f | 5018 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5019 | m->count = 1; |
8ded5a0f | 5020 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5021 | |
5022 | *pm = m; | |
5023 | pm = &m->next; | |
5024 | } | |
13ae64f3 | 5025 | |
12bd6957 | 5026 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5027 | { |
8ded5a0f | 5028 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5029 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5030 | if (m == NULL) |
5031 | goto error_return; | |
5032 | m->next = NULL; | |
2b05f1b7 | 5033 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5034 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5035 | m->p_align = bed->stack_align; |
8ded5a0f | 5036 | m->p_flags_valid = 1; |
04c3a755 NS |
5037 | m->p_align_valid = m->p_align != 0; |
5038 | if (info->stacksize > 0) | |
5039 | { | |
5040 | m->p_size = info->stacksize; | |
5041 | m->p_size_valid = 1; | |
5042 | } | |
252b5132 | 5043 | |
8ded5a0f AM |
5044 | *pm = m; |
5045 | pm = &m->next; | |
5046 | } | |
65765700 | 5047 | |
ceae84aa | 5048 | if (info != NULL && info->relro) |
8ded5a0f | 5049 | { |
f210dcff L |
5050 | for (m = mfirst; m != NULL; m = m->next) |
5051 | { | |
3832a4d8 AM |
5052 | if (m->p_type == PT_LOAD |
5053 | && m->count != 0 | |
5054 | && m->sections[0]->vma >= info->relro_start | |
5055 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5056 | { |
3832a4d8 AM |
5057 | i = m->count; |
5058 | while (--i != (unsigned) -1) | |
5059 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5060 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5061 | break; | |
5062 | ||
43a8475c | 5063 | if (i != (unsigned) -1) |
f210dcff L |
5064 | break; |
5065 | } | |
be01b344 | 5066 | } |
f210dcff L |
5067 | |
5068 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5069 | if (m != NULL) | |
5070 | { | |
5071 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5072 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5073 | if (m == NULL) |
5074 | goto error_return; | |
5075 | m->next = NULL; | |
5076 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5077 | *pm = m; |
5078 | pm = &m->next; | |
5079 | } | |
8ded5a0f | 5080 | } |
9ee5e499 | 5081 | |
8ded5a0f | 5082 | free (sections); |
12bd6957 | 5083 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5084 | } |
5085 | ||
3dea8fca | 5086 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5087 | return FALSE; |
8c37241b | 5088 | |
12bd6957 | 5089 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5090 | ++count; |
12bd6957 | 5091 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5092 | |
b34976b6 | 5093 | return TRUE; |
252b5132 RH |
5094 | |
5095 | error_return: | |
5096 | if (sections != NULL) | |
5097 | free (sections); | |
b34976b6 | 5098 | return FALSE; |
252b5132 RH |
5099 | } |
5100 | ||
5101 | /* Sort sections by address. */ | |
5102 | ||
5103 | static int | |
217aa764 | 5104 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5105 | { |
5106 | const asection *sec1 = *(const asection **) arg1; | |
5107 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5108 | bfd_size_type size1, size2; |
252b5132 RH |
5109 | |
5110 | /* Sort by LMA first, since this is the address used to | |
5111 | place the section into a segment. */ | |
5112 | if (sec1->lma < sec2->lma) | |
5113 | return -1; | |
5114 | else if (sec1->lma > sec2->lma) | |
5115 | return 1; | |
5116 | ||
5117 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5118 | the same, and this will do nothing. */ | |
5119 | if (sec1->vma < sec2->vma) | |
5120 | return -1; | |
5121 | else if (sec1->vma > sec2->vma) | |
5122 | return 1; | |
5123 | ||
5124 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5125 | ||
07c6e936 | 5126 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5127 | |
5128 | if (TOEND (sec1)) | |
5129 | { | |
5130 | if (TOEND (sec2)) | |
00a7cdc5 NC |
5131 | { |
5132 | /* If the indicies are the same, do not return 0 | |
5133 | here, but continue to try the next comparison. */ | |
5134 | if (sec1->target_index - sec2->target_index != 0) | |
5135 | return sec1->target_index - sec2->target_index; | |
5136 | } | |
252b5132 RH |
5137 | else |
5138 | return 1; | |
5139 | } | |
00a7cdc5 | 5140 | else if (TOEND (sec2)) |
252b5132 RH |
5141 | return -1; |
5142 | ||
5143 | #undef TOEND | |
5144 | ||
00a7cdc5 NC |
5145 | /* Sort by size, to put zero sized sections |
5146 | before others at the same address. */ | |
252b5132 | 5147 | |
eea6121a AM |
5148 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5149 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5150 | |
5151 | if (size1 < size2) | |
252b5132 | 5152 | return -1; |
eecdbe52 | 5153 | if (size1 > size2) |
252b5132 RH |
5154 | return 1; |
5155 | ||
5156 | return sec1->target_index - sec2->target_index; | |
5157 | } | |
5158 | ||
340b6d91 AC |
5159 | /* Ian Lance Taylor writes: |
5160 | ||
5161 | We shouldn't be using % with a negative signed number. That's just | |
5162 | not good. We have to make sure either that the number is not | |
5163 | negative, or that the number has an unsigned type. When the types | |
5164 | are all the same size they wind up as unsigned. When file_ptr is a | |
5165 | larger signed type, the arithmetic winds up as signed long long, | |
5166 | which is wrong. | |
5167 | ||
5168 | What we're trying to say here is something like ``increase OFF by | |
5169 | the least amount that will cause it to be equal to the VMA modulo | |
5170 | the page size.'' */ | |
5171 | /* In other words, something like: | |
5172 | ||
5173 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5174 | off_offset = off % bed->maxpagesize; | |
5175 | if (vma_offset < off_offset) | |
5176 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5177 | else | |
5178 | adjustment = vma_offset - off_offset; | |
08a40648 | 5179 | |
de194d85 | 5180 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5181 | |
5182 | static file_ptr | |
5183 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5184 | { | |
dc9155b2 NC |
5185 | /* PR binutils/16199: Handle an alignment of zero. */ |
5186 | if (maxpagesize == 0) | |
5187 | maxpagesize = 1; | |
340b6d91 AC |
5188 | return ((vma - off) % maxpagesize); |
5189 | } | |
5190 | ||
6d33f217 L |
5191 | static void |
5192 | print_segment_map (const struct elf_segment_map *m) | |
5193 | { | |
5194 | unsigned int j; | |
5195 | const char *pt = get_segment_type (m->p_type); | |
5196 | char buf[32]; | |
5197 | ||
5198 | if (pt == NULL) | |
5199 | { | |
5200 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5201 | sprintf (buf, "LOPROC+%7.7x", | |
5202 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5203 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5204 | sprintf (buf, "LOOS+%7.7x", | |
5205 | (unsigned int) (m->p_type - PT_LOOS)); | |
5206 | else | |
5207 | snprintf (buf, sizeof (buf), "%8.8x", | |
5208 | (unsigned int) m->p_type); | |
5209 | pt = buf; | |
5210 | } | |
4a97a0e5 | 5211 | fflush (stdout); |
6d33f217 L |
5212 | fprintf (stderr, "%s:", pt); |
5213 | for (j = 0; j < m->count; j++) | |
5214 | fprintf (stderr, " %s", m->sections [j]->name); | |
5215 | putc ('\n',stderr); | |
4a97a0e5 | 5216 | fflush (stderr); |
6d33f217 L |
5217 | } |
5218 | ||
32812159 AM |
5219 | static bfd_boolean |
5220 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5221 | { | |
5222 | void *buf; | |
5223 | bfd_boolean ret; | |
5224 | ||
5225 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5226 | return FALSE; | |
5227 | buf = bfd_zmalloc (len); | |
5228 | if (buf == NULL) | |
5229 | return FALSE; | |
5230 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5231 | free (buf); | |
5232 | return ret; | |
5233 | } | |
5234 | ||
252b5132 RH |
5235 | /* Assign file positions to the sections based on the mapping from |
5236 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5237 | the file header. */ |
252b5132 | 5238 | |
b34976b6 | 5239 | static bfd_boolean |
f3520d2f AM |
5240 | assign_file_positions_for_load_sections (bfd *abfd, |
5241 | struct bfd_link_info *link_info) | |
252b5132 RH |
5242 | { |
5243 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5244 | struct elf_segment_map *m; |
252b5132 | 5245 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5246 | Elf_Internal_Phdr *p; |
02bf8d82 | 5247 | file_ptr off; |
3f570048 | 5248 | bfd_size_type maxpagesize; |
a8c75b76 | 5249 | unsigned int pt_load_count = 0; |
f3520d2f | 5250 | unsigned int alloc; |
0920dee7 | 5251 | unsigned int i, j; |
2b0bc088 | 5252 | bfd_vma header_pad = 0; |
252b5132 | 5253 | |
e36284ab | 5254 | if (link_info == NULL |
ceae84aa | 5255 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5256 | return FALSE; |
252b5132 | 5257 | |
8ded5a0f | 5258 | alloc = 0; |
12bd6957 | 5259 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
5260 | { |
5261 | ++alloc; | |
5262 | if (m->header_size) | |
5263 | header_pad = m->header_size; | |
5264 | } | |
252b5132 | 5265 | |
82f2dbf7 NC |
5266 | if (alloc) |
5267 | { | |
5268 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5269 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5270 | } | |
5271 | else | |
5272 | { | |
5273 | /* PR binutils/12467. */ | |
5274 | elf_elfheader (abfd)->e_phoff = 0; | |
5275 | elf_elfheader (abfd)->e_phentsize = 0; | |
5276 | } | |
d324f6d6 | 5277 | |
8ded5a0f | 5278 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5279 | |
12bd6957 AM |
5280 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
5281 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 5282 | else |
12bd6957 | 5283 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 5284 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
5285 | |
5286 | if (alloc == 0) | |
f3520d2f | 5287 | { |
12bd6957 | 5288 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5289 | return TRUE; |
f3520d2f | 5290 | } |
252b5132 | 5291 | |
12bd6957 | 5292 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5293 | see assign_file_positions_except_relocs, so make sure we have |
5294 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5295 | The variable alloc contains the computed need, while |
5296 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5297 | layout. |
5298 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5299 | where the layout is forced to according to a larger size in the | |
5300 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 5301 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 5302 | == 0); |
a50b1753 NC |
5303 | phdrs = (Elf_Internal_Phdr *) |
5304 | bfd_zalloc2 (abfd, | |
07d6d2b8 AM |
5305 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
5306 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 5307 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5308 | if (phdrs == NULL) |
b34976b6 | 5309 | return FALSE; |
252b5132 | 5310 | |
3f570048 AM |
5311 | maxpagesize = 1; |
5312 | if ((abfd->flags & D_PAGED) != 0) | |
5313 | maxpagesize = bed->maxpagesize; | |
5314 | ||
252b5132 RH |
5315 | off = bed->s->sizeof_ehdr; |
5316 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5317 | if (header_pad < (bfd_vma) off) |
5318 | header_pad = 0; | |
5319 | else | |
5320 | header_pad -= off; | |
5321 | off += header_pad; | |
252b5132 | 5322 | |
12bd6957 | 5323 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 5324 | m != NULL; |
0920dee7 | 5325 | m = m->next, p++, j++) |
252b5132 | 5326 | { |
252b5132 | 5327 | asection **secpp; |
bf988460 AM |
5328 | bfd_vma off_adjust; |
5329 | bfd_boolean no_contents; | |
252b5132 RH |
5330 | |
5331 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 5332 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5333 | not be done to the PT_NOTE section of a corefile, which may |
5334 | contain several pseudo-sections artificially created by bfd. | |
5335 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5336 | if (m->count > 1 |
5337 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5338 | && m->p_type == PT_NOTE)) |
252b5132 RH |
5339 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
5340 | elf_sort_sections); | |
5341 | ||
b301b248 AM |
5342 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5343 | number of sections with contents contributing to both p_filesz | |
5344 | and p_memsz, followed by a number of sections with no contents | |
5345 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5346 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 5347 | p->p_type = m->p_type; |
28a7f3e7 | 5348 | p->p_flags = m->p_flags; |
252b5132 | 5349 | |
3f570048 AM |
5350 | if (m->count == 0) |
5351 | p->p_vaddr = 0; | |
5352 | else | |
3271a814 | 5353 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
5354 | |
5355 | if (m->p_paddr_valid) | |
5356 | p->p_paddr = m->p_paddr; | |
5357 | else if (m->count == 0) | |
5358 | p->p_paddr = 0; | |
5359 | else | |
08a40648 | 5360 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
5361 | |
5362 | if (p->p_type == PT_LOAD | |
5363 | && (abfd->flags & D_PAGED) != 0) | |
5364 | { | |
5365 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5366 | the maximum page size. When copying an executable with | |
5367 | objcopy, we set m->p_align from the input file. Use this | |
5368 | value for maxpagesize rather than bed->maxpagesize, which | |
5369 | may be different. Note that we use maxpagesize for PT_TLS | |
5370 | segment alignment later in this function, so we are relying | |
5371 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5372 | segment. */ | |
5373 | if (m->p_align_valid) | |
5374 | maxpagesize = m->p_align; | |
5375 | ||
5376 | p->p_align = maxpagesize; | |
a8c75b76 | 5377 | pt_load_count += 1; |
3f570048 | 5378 | } |
3271a814 NS |
5379 | else if (m->p_align_valid) |
5380 | p->p_align = m->p_align; | |
e970b90a DJ |
5381 | else if (m->count == 0) |
5382 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
5383 | else |
5384 | p->p_align = 0; | |
5385 | ||
bf988460 AM |
5386 | no_contents = FALSE; |
5387 | off_adjust = 0; | |
252b5132 | 5388 | if (p->p_type == PT_LOAD |
b301b248 | 5389 | && m->count > 0) |
252b5132 | 5390 | { |
b301b248 | 5391 | bfd_size_type align; |
a49e53ed | 5392 | unsigned int align_power = 0; |
b301b248 | 5393 | |
3271a814 NS |
5394 | if (m->p_align_valid) |
5395 | align = p->p_align; | |
5396 | else | |
252b5132 | 5397 | { |
3271a814 NS |
5398 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5399 | { | |
5400 | unsigned int secalign; | |
08a40648 | 5401 | |
3271a814 NS |
5402 | secalign = bfd_get_section_alignment (abfd, *secpp); |
5403 | if (secalign > align_power) | |
5404 | align_power = secalign; | |
5405 | } | |
5406 | align = (bfd_size_type) 1 << align_power; | |
5407 | if (align < maxpagesize) | |
5408 | align = maxpagesize; | |
b301b248 | 5409 | } |
252b5132 | 5410 | |
02bf8d82 AM |
5411 | for (i = 0; i < m->count; i++) |
5412 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5413 | /* If we aren't making room for this section, then | |
5414 | it must be SHT_NOBITS regardless of what we've | |
5415 | set via struct bfd_elf_special_section. */ | |
5416 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5417 | ||
bf988460 | 5418 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5419 | sections. */ |
5420 | no_contents = TRUE; | |
5421 | for (i = 0; i < m->count; i++) | |
5422 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5423 | { | |
5424 | no_contents = FALSE; | |
5425 | break; | |
5426 | } | |
bf988460 | 5427 | |
85cfcbfb | 5428 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5429 | |
5430 | /* Broken hardware and/or kernel require that files do not | |
5431 | map the same page with different permissions on some hppa | |
5432 | processors. */ | |
5433 | if (pt_load_count > 1 | |
5434 | && bed->no_page_alias | |
5435 | && (off & (maxpagesize - 1)) != 0 | |
5436 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5437 | off_adjust += maxpagesize; | |
bf988460 AM |
5438 | off += off_adjust; |
5439 | if (no_contents) | |
5440 | { | |
5441 | /* We shouldn't need to align the segment on disk since | |
5442 | the segment doesn't need file space, but the gABI | |
5443 | arguably requires the alignment and glibc ld.so | |
5444 | checks it. So to comply with the alignment | |
5445 | requirement but not waste file space, we adjust | |
5446 | p_offset for just this segment. (OFF_ADJUST is | |
5447 | subtracted from OFF later.) This may put p_offset | |
5448 | past the end of file, but that shouldn't matter. */ | |
5449 | } | |
5450 | else | |
5451 | off_adjust = 0; | |
252b5132 | 5452 | } |
b1a6d0b1 NC |
5453 | /* Make sure the .dynamic section is the first section in the |
5454 | PT_DYNAMIC segment. */ | |
5455 | else if (p->p_type == PT_DYNAMIC | |
5456 | && m->count > 1 | |
5457 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5458 | { | |
5459 | _bfd_error_handler | |
871b3ab2 | 5460 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5461 | " is not the .dynamic section"), |
b301b248 | 5462 | abfd); |
b1a6d0b1 NC |
5463 | bfd_set_error (bfd_error_bad_value); |
5464 | return FALSE; | |
5465 | } | |
3f001e84 JK |
5466 | /* Set the note section type to SHT_NOTE. */ |
5467 | else if (p->p_type == PT_NOTE) | |
5468 | for (i = 0; i < m->count; i++) | |
5469 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5470 | |
252b5132 RH |
5471 | p->p_offset = 0; |
5472 | p->p_filesz = 0; | |
5473 | p->p_memsz = 0; | |
5474 | ||
5475 | if (m->includes_filehdr) | |
5476 | { | |
bf988460 | 5477 | if (!m->p_flags_valid) |
252b5132 | 5478 | p->p_flags |= PF_R; |
252b5132 RH |
5479 | p->p_filesz = bed->s->sizeof_ehdr; |
5480 | p->p_memsz = bed->s->sizeof_ehdr; | |
5481 | if (m->count > 0) | |
5482 | { | |
9ab82472 L |
5483 | if (p->p_vaddr < (bfd_vma) off |
5484 | || (!m->p_paddr_valid | |
5485 | && p->p_paddr < (bfd_vma) off)) | |
252b5132 | 5486 | { |
4eca0228 | 5487 | _bfd_error_handler |
9793eb77 | 5488 | (_("%pB: not enough room for program headers," |
63a5468a | 5489 | " try linking with -N"), |
b301b248 | 5490 | abfd); |
252b5132 | 5491 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5492 | return FALSE; |
252b5132 RH |
5493 | } |
5494 | ||
5495 | p->p_vaddr -= off; | |
bf988460 | 5496 | if (!m->p_paddr_valid) |
252b5132 RH |
5497 | p->p_paddr -= off; |
5498 | } | |
252b5132 RH |
5499 | } |
5500 | ||
5501 | if (m->includes_phdrs) | |
5502 | { | |
bf988460 | 5503 | if (!m->p_flags_valid) |
252b5132 RH |
5504 | p->p_flags |= PF_R; |
5505 | ||
f3520d2f | 5506 | if (!m->includes_filehdr) |
252b5132 RH |
5507 | { |
5508 | p->p_offset = bed->s->sizeof_ehdr; | |
5509 | ||
5510 | if (m->count > 0) | |
5511 | { | |
252b5132 | 5512 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 5513 | if (!m->p_paddr_valid) |
252b5132 RH |
5514 | p->p_paddr -= off - p->p_offset; |
5515 | } | |
252b5132 RH |
5516 | } |
5517 | ||
5518 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
5519 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5520 | if (m->count) |
5521 | { | |
5522 | p->p_filesz += header_pad; | |
5523 | p->p_memsz += header_pad; | |
5524 | } | |
252b5132 RH |
5525 | } |
5526 | ||
5527 | if (p->p_type == PT_LOAD | |
5528 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5529 | { | |
bf988460 | 5530 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5531 | p->p_offset = off; |
252b5132 RH |
5532 | else |
5533 | { | |
5534 | file_ptr adjust; | |
5535 | ||
5536 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5537 | if (!no_contents) |
5538 | p->p_filesz += adjust; | |
252b5132 RH |
5539 | p->p_memsz += adjust; |
5540 | } | |
5541 | } | |
5542 | ||
1ea63fd2 AM |
5543 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5544 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5545 | core files, for sections in PT_NOTE segments. | |
5546 | assign_file_positions_for_non_load_sections will set filepos | |
5547 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5548 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5549 | { | |
5550 | asection *sec; | |
252b5132 | 5551 | bfd_size_type align; |
627b32bc | 5552 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5553 | |
5554 | sec = *secpp; | |
02bf8d82 | 5555 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5556 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5557 | |
88967714 AM |
5558 | if ((p->p_type == PT_LOAD |
5559 | || p->p_type == PT_TLS) | |
5560 | && (this_hdr->sh_type != SHT_NOBITS | |
5561 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5562 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5563 | || p->p_type == PT_TLS)))) | |
252b5132 | 5564 | { |
b5599592 AM |
5565 | bfd_vma p_start = p->p_paddr; |
5566 | bfd_vma p_end = p_start + p->p_memsz; | |
5567 | bfd_vma s_start = sec->lma; | |
5568 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5569 | |
a2d1e028 L |
5570 | if (adjust != 0 |
5571 | && (s_start < p_end | |
5572 | || p_end < p_start)) | |
252b5132 | 5573 | { |
4eca0228 | 5574 | _bfd_error_handler |
695344c0 | 5575 | /* xgettext:c-format */ |
2dcf00ce AM |
5576 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5577 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5578 | adjust = 0; |
b5599592 | 5579 | sec->lma = p_end; |
1cfb7d1e | 5580 | } |
3ac9b6c9 | 5581 | p->p_memsz += adjust; |
1cfb7d1e | 5582 | |
88967714 AM |
5583 | if (this_hdr->sh_type != SHT_NOBITS) |
5584 | { | |
32812159 AM |
5585 | if (p->p_filesz + adjust < p->p_memsz) |
5586 | { | |
5587 | /* We have a PROGBITS section following NOBITS ones. | |
07d6d2b8 | 5588 | Allocate file space for the NOBITS section(s) and |
32812159 AM |
5589 | zero it. */ |
5590 | adjust = p->p_memsz - p->p_filesz; | |
5591 | if (!write_zeros (abfd, off, adjust)) | |
5592 | return FALSE; | |
5593 | } | |
88967714 AM |
5594 | off += adjust; |
5595 | p->p_filesz += adjust; | |
252b5132 | 5596 | } |
252b5132 RH |
5597 | } |
5598 | ||
5599 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5600 | { | |
b301b248 AM |
5601 | /* The section at i == 0 is the one that actually contains |
5602 | everything. */ | |
4a938328 MS |
5603 | if (i == 0) |
5604 | { | |
627b32bc | 5605 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5606 | off += this_hdr->sh_size; |
5607 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5608 | p->p_memsz = 0; |
5609 | p->p_align = 1; | |
252b5132 | 5610 | } |
4a938328 | 5611 | else |
252b5132 | 5612 | { |
b301b248 | 5613 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5614 | sec->filepos = 0; |
eea6121a | 5615 | sec->size = 0; |
b301b248 AM |
5616 | sec->flags = 0; |
5617 | continue; | |
252b5132 | 5618 | } |
252b5132 RH |
5619 | } |
5620 | else | |
5621 | { | |
1e951488 | 5622 | if (p->p_type == PT_LOAD) |
b301b248 | 5623 | { |
1e951488 AM |
5624 | this_hdr->sh_offset = sec->filepos = off; |
5625 | if (this_hdr->sh_type != SHT_NOBITS) | |
5626 | off += this_hdr->sh_size; | |
5627 | } | |
5628 | else if (this_hdr->sh_type == SHT_NOBITS | |
5629 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5630 | && this_hdr->sh_offset == 0) | |
5631 | { | |
5632 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5633 | (See _bfd_elf_map_sections_to_segments "Create a | |
5634 | final PT_LOAD".) Set sh_offset to the value it | |
5635 | would have if we had created a zero p_filesz and | |
5636 | p_memsz PT_LOAD header for the section. This | |
5637 | also makes the PT_TLS header have the same | |
5638 | p_offset value. */ | |
5639 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5640 | off, align); | |
5641 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5642 | } |
252b5132 | 5643 | |
02bf8d82 | 5644 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5645 | { |
6a3cd2b4 | 5646 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5647 | /* A load section without SHF_ALLOC is something like |
5648 | a note section in a PT_NOTE segment. These take | |
5649 | file space but are not loaded into memory. */ | |
5650 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5651 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5652 | } |
6a3cd2b4 | 5653 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5654 | { |
6a3cd2b4 AM |
5655 | if (p->p_type == PT_TLS) |
5656 | p->p_memsz += this_hdr->sh_size; | |
5657 | ||
5658 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5659 | normal segments. */ | |
5660 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5661 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5662 | } |
5663 | ||
b10a8ae0 L |
5664 | if (align > p->p_align |
5665 | && !m->p_align_valid | |
5666 | && (p->p_type != PT_LOAD | |
5667 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5668 | p->p_align = align; |
5669 | } | |
5670 | ||
bf988460 | 5671 | if (!m->p_flags_valid) |
252b5132 RH |
5672 | { |
5673 | p->p_flags |= PF_R; | |
02bf8d82 | 5674 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5675 | p->p_flags |= PF_X; |
02bf8d82 | 5676 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5677 | p->p_flags |= PF_W; |
5678 | } | |
5679 | } | |
43a8475c | 5680 | |
bf988460 | 5681 | off -= off_adjust; |
0920dee7 | 5682 | |
7c928300 AM |
5683 | /* Check that all sections are in a PT_LOAD segment. |
5684 | Don't check funky gdb generated core files. */ | |
5685 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5686 | { |
5687 | bfd_boolean check_vma = TRUE; | |
5688 | ||
5689 | for (i = 1; i < m->count; i++) | |
5690 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5691 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5692 | ->this_hdr), p) != 0 | |
5693 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5694 | ->this_hdr), p) != 0) | |
0920dee7 | 5695 | { |
9a83a553 AM |
5696 | /* Looks like we have overlays packed into the segment. */ |
5697 | check_vma = FALSE; | |
5698 | break; | |
0920dee7 | 5699 | } |
9a83a553 AM |
5700 | |
5701 | for (i = 0; i < m->count; i++) | |
5702 | { | |
5703 | Elf_Internal_Shdr *this_hdr; | |
5704 | asection *sec; | |
5705 | ||
5706 | sec = m->sections[i]; | |
5707 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5708 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5709 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5710 | { |
4eca0228 | 5711 | _bfd_error_handler |
695344c0 | 5712 | /* xgettext:c-format */ |
871b3ab2 | 5713 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5714 | abfd, sec, j); |
5715 | print_segment_map (m); | |
5716 | } | |
5717 | } | |
5718 | } | |
252b5132 RH |
5719 | } |
5720 | ||
12bd6957 | 5721 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5722 | return TRUE; |
5723 | } | |
5724 | ||
5725 | /* Assign file positions for the other sections. */ | |
5726 | ||
5727 | static bfd_boolean | |
5728 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5729 | struct bfd_link_info *link_info) | |
5730 | { | |
5731 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5732 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5733 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5734 | Elf_Internal_Phdr *phdrs; |
5735 | Elf_Internal_Phdr *p; | |
5736 | struct elf_segment_map *m; | |
62655c7b | 5737 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5738 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5739 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5740 | file_ptr off; | |
f3520d2f AM |
5741 | unsigned int count; |
5742 | ||
5c182d5f | 5743 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5744 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5745 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5746 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5747 | { |
5c182d5f AM |
5748 | Elf_Internal_Shdr *hdr; |
5749 | ||
5750 | hdr = *hdrpp; | |
5751 | if (hdr->bfd_section != NULL | |
252e386e AM |
5752 | && (hdr->bfd_section->filepos != 0 |
5753 | || (hdr->sh_type == SHT_NOBITS | |
5754 | && hdr->contents == NULL))) | |
627b32bc | 5755 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5756 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5757 | { | |
e8d2ba53 | 5758 | if (hdr->sh_size != 0) |
4eca0228 | 5759 | _bfd_error_handler |
695344c0 | 5760 | /* xgettext:c-format */ |
871b3ab2 | 5761 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
5762 | abfd, |
5763 | (hdr->bfd_section == NULL | |
5764 | ? "*unknown*" | |
5765 | : hdr->bfd_section->name)); | |
3ba71138 L |
5766 | /* We don't need to page align empty sections. */ |
5767 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5768 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5769 | bed->maxpagesize); | |
5770 | else | |
5771 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5772 | hdr->sh_addralign); | |
5773 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5774 | FALSE); | |
5775 | } | |
5776 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5777 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5778 | || (hdr->bfd_section != NULL |
5779 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5780 | /* Compress DWARF debug sections. */ | |
12bd6957 | 5781 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
5782 | || (elf_symtab_shndx_list (abfd) != NULL |
5783 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
5784 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5785 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5786 | hdr->sh_offset = -1; |
5787 | else | |
5788 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5789 | } |
5790 | ||
252b5132 RH |
5791 | /* Now that we have set the section file positions, we can set up |
5792 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5793 | count = 0; |
5794 | filehdr_vaddr = 0; | |
5795 | filehdr_paddr = 0; | |
5796 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5797 | phdrs_paddr = 0; | |
62655c7b | 5798 | hdrs_segment = NULL; |
f3520d2f | 5799 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5800 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5801 | { |
5802 | ++count; | |
5803 | if (p->p_type != PT_LOAD) | |
5804 | continue; | |
5805 | ||
5806 | if (m->includes_filehdr) | |
5807 | { | |
5808 | filehdr_vaddr = p->p_vaddr; | |
5809 | filehdr_paddr = p->p_paddr; | |
5810 | } | |
5811 | if (m->includes_phdrs) | |
5812 | { | |
5813 | phdrs_vaddr = p->p_vaddr; | |
5814 | phdrs_paddr = p->p_paddr; | |
5815 | if (m->includes_filehdr) | |
5816 | { | |
62655c7b | 5817 | hdrs_segment = m; |
f3520d2f AM |
5818 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5819 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5820 | } | |
5821 | } | |
5822 | } | |
5823 | ||
62655c7b RM |
5824 | if (hdrs_segment != NULL && link_info != NULL) |
5825 | { | |
5826 | /* There is a segment that contains both the file headers and the | |
5827 | program headers, so provide a symbol __ehdr_start pointing there. | |
5828 | A program can use this to examine itself robustly. */ | |
5829 | ||
5830 | struct elf_link_hash_entry *hash | |
5831 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5832 | FALSE, FALSE, TRUE); | |
5833 | /* If the symbol was referenced and not defined, define it. */ | |
5834 | if (hash != NULL | |
5835 | && (hash->root.type == bfd_link_hash_new | |
5836 | || hash->root.type == bfd_link_hash_undefined | |
5837 | || hash->root.type == bfd_link_hash_undefweak | |
5838 | || hash->root.type == bfd_link_hash_common)) | |
5839 | { | |
5840 | asection *s = NULL; | |
5841 | if (hdrs_segment->count != 0) | |
5842 | /* The segment contains sections, so use the first one. */ | |
5843 | s = hdrs_segment->sections[0]; | |
5844 | else | |
5845 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 5846 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
5847 | if (m->count != 0) |
5848 | { | |
5849 | s = m->sections[0]; | |
5850 | break; | |
5851 | } | |
5852 | ||
5853 | if (s != NULL) | |
5854 | { | |
5855 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5856 | hash->root.u.def.section = s; | |
5857 | } | |
5858 | else | |
5859 | { | |
5860 | hash->root.u.def.value = filehdr_vaddr; | |
5861 | hash->root.u.def.section = bfd_abs_section_ptr; | |
5862 | } | |
5863 | ||
5864 | hash->root.type = bfd_link_hash_defined; | |
5865 | hash->def_regular = 1; | |
5866 | hash->non_elf = 0; | |
5867 | } | |
5868 | } | |
5869 | ||
12bd6957 | 5870 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 5871 | { |
129af99f | 5872 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 5873 | { |
f2731e0c | 5874 | bfd_vma start, end; |
01f7e10c | 5875 | bfd_boolean ok; |
1ea63fd2 | 5876 | |
129af99f | 5877 | if (link_info != NULL) |
8c37241b | 5878 | { |
129af99f | 5879 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
5880 | in link_info. Note that there may be padding between |
5881 | relro_start and the first RELRO section. */ | |
5882 | start = link_info->relro_start; | |
5883 | end = link_info->relro_end; | |
5884 | } | |
5885 | else if (m->count != 0) | |
5886 | { | |
5887 | if (!m->p_size_valid) | |
5888 | abort (); | |
5889 | start = m->sections[0]->vma; | |
5890 | end = start + m->p_size; | |
5891 | } | |
5892 | else | |
5893 | { | |
5894 | start = 0; | |
5895 | end = 0; | |
5896 | } | |
5897 | ||
01f7e10c | 5898 | ok = FALSE; |
f2731e0c AM |
5899 | if (start < end) |
5900 | { | |
5901 | struct elf_segment_map *lm; | |
5902 | const Elf_Internal_Phdr *lp; | |
5903 | unsigned int i; | |
5904 | ||
5905 | /* Find a LOAD segment containing a section in the RELRO | |
5906 | segment. */ | |
12bd6957 | 5907 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
5908 | lm != NULL; |
5909 | lm = lm->next, lp++) | |
8c37241b JJ |
5910 | { |
5911 | if (lp->p_type == PT_LOAD | |
3146fac4 | 5912 | && lm->count != 0 |
dbc88fc1 AM |
5913 | && (lm->sections[lm->count - 1]->vma |
5914 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
5915 | ? lm->sections[lm->count - 1]->size | |
5916 | : 0)) > start | |
f2731e0c | 5917 | && lm->sections[0]->vma < end) |
8c37241b JJ |
5918 | break; |
5919 | } | |
f2731e0c | 5920 | |
01f7e10c | 5921 | if (lm != NULL) |
129af99f | 5922 | { |
01f7e10c AM |
5923 | /* Find the section starting the RELRO segment. */ |
5924 | for (i = 0; i < lm->count; i++) | |
5925 | { | |
5926 | asection *s = lm->sections[i]; | |
5927 | if (s->vma >= start | |
5928 | && s->vma < end | |
5929 | && s->size != 0) | |
5930 | break; | |
5931 | } | |
5932 | ||
5933 | if (i < lm->count) | |
5934 | { | |
5935 | p->p_vaddr = lm->sections[i]->vma; | |
5936 | p->p_paddr = lm->sections[i]->lma; | |
5937 | p->p_offset = lm->sections[i]->filepos; | |
5938 | p->p_memsz = end - p->p_vaddr; | |
5939 | p->p_filesz = p->p_memsz; | |
5940 | ||
5941 | /* The RELRO segment typically ends a few bytes | |
5942 | into .got.plt but other layouts are possible. | |
5943 | In cases where the end does not match any | |
5944 | loaded section (for instance is in file | |
5945 | padding), trim p_filesz back to correspond to | |
5946 | the end of loaded section contents. */ | |
5947 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
5948 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
5949 | ||
5950 | /* Preserve the alignment and flags if they are | |
5951 | valid. The gold linker generates RW/4 for | |
5952 | the PT_GNU_RELRO section. It is better for | |
5953 | objcopy/strip to honor these attributes | |
5954 | otherwise gdb will choke when using separate | |
5955 | debug files. */ | |
5956 | if (!m->p_align_valid) | |
5957 | p->p_align = 1; | |
5958 | if (!m->p_flags_valid) | |
5959 | p->p_flags = PF_R; | |
5960 | ok = TRUE; | |
5961 | } | |
129af99f | 5962 | } |
b84a33b5 | 5963 | } |
01f7e10c AM |
5964 | if (link_info != NULL) |
5965 | BFD_ASSERT (ok); | |
5966 | if (!ok) | |
5967 | memset (p, 0, sizeof *p); | |
129af99f | 5968 | } |
04c3a755 NS |
5969 | else if (p->p_type == PT_GNU_STACK) |
5970 | { | |
5971 | if (m->p_size_valid) | |
5972 | p->p_memsz = m->p_size; | |
5973 | } | |
129af99f AS |
5974 | else if (m->count != 0) |
5975 | { | |
e06efbf1 | 5976 | unsigned int i; |
1a9ccd70 | 5977 | |
129af99f AS |
5978 | if (p->p_type != PT_LOAD |
5979 | && (p->p_type != PT_NOTE | |
5980 | || bfd_get_format (abfd) != bfd_core)) | |
5981 | { | |
1a9ccd70 NC |
5982 | /* A user specified segment layout may include a PHDR |
5983 | segment that overlaps with a LOAD segment... */ | |
5984 | if (p->p_type == PT_PHDR) | |
5985 | { | |
5986 | m->count = 0; | |
5987 | continue; | |
5988 | } | |
5989 | ||
c86934ce NC |
5990 | if (m->includes_filehdr || m->includes_phdrs) |
5991 | { | |
b1fa9dd6 | 5992 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 5993 | _bfd_error_handler |
871b3ab2 | 5994 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
5995 | "and/or program header"), |
5996 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
5997 | return FALSE; |
5998 | } | |
129af99f | 5999 | |
86b2281f | 6000 | p->p_filesz = 0; |
129af99f | 6001 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6002 | for (i = m->count; i-- != 0;) |
6003 | { | |
6004 | asection *sect = m->sections[i]; | |
6005 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6006 | if (hdr->sh_type != SHT_NOBITS) | |
6007 | { | |
6008 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6009 | + hdr->sh_size); | |
6010 | break; | |
6011 | } | |
6012 | } | |
129af99f AS |
6013 | } |
6014 | } | |
6015 | else if (m->includes_filehdr) | |
6016 | { | |
6017 | p->p_vaddr = filehdr_vaddr; | |
6018 | if (! m->p_paddr_valid) | |
6019 | p->p_paddr = filehdr_paddr; | |
6020 | } | |
6021 | else if (m->includes_phdrs) | |
6022 | { | |
6023 | p->p_vaddr = phdrs_vaddr; | |
6024 | if (! m->p_paddr_valid) | |
6025 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
6026 | } |
6027 | } | |
6028 | ||
12bd6957 | 6029 | elf_next_file_pos (abfd) = off; |
252b5132 | 6030 | |
b34976b6 | 6031 | return TRUE; |
252b5132 RH |
6032 | } |
6033 | ||
6a40cf0c NC |
6034 | static elf_section_list * |
6035 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6036 | { | |
6037 | for (;list != NULL; list = list->next) | |
6038 | if (list->ndx == i) | |
6039 | break; | |
6040 | return list; | |
6041 | } | |
6042 | ||
252b5132 RH |
6043 | /* Work out the file positions of all the sections. This is called by |
6044 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6045 | VMAs must be known before this is called. | |
6046 | ||
e0638f70 AM |
6047 | Reloc sections come in two flavours: Those processed specially as |
6048 | "side-channel" data attached to a section to which they apply, and | |
6049 | those that bfd doesn't process as relocations. The latter sort are | |
6050 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
6051 | consider the former sort here, unless they form part of the loadable | |
6052 | image. Reloc sections not assigned here will be handled later by | |
6053 | assign_file_positions_for_relocs. | |
252b5132 RH |
6054 | |
6055 | We also don't set the positions of the .symtab and .strtab here. */ | |
6056 | ||
b34976b6 | 6057 | static bfd_boolean |
c84fca4d AO |
6058 | assign_file_positions_except_relocs (bfd *abfd, |
6059 | struct bfd_link_info *link_info) | |
252b5132 | 6060 | { |
5c182d5f AM |
6061 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6062 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6063 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6064 | |
6065 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6066 | && bfd_get_format (abfd) != bfd_core) | |
6067 | { | |
5c182d5f AM |
6068 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6069 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6070 | Elf_Internal_Shdr **hdrpp; |
6071 | unsigned int i; | |
a485e98e | 6072 | file_ptr off; |
252b5132 RH |
6073 | |
6074 | /* Start after the ELF header. */ | |
6075 | off = i_ehdrp->e_ehsize; | |
6076 | ||
6077 | /* We are not creating an executable, which means that we are | |
6078 | not creating a program header, and that the actual order of | |
6079 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6080 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6081 | { |
6082 | Elf_Internal_Shdr *hdr; | |
6083 | ||
6084 | hdr = *hdrpp; | |
e0638f70 AM |
6085 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6086 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
6087 | || (hdr->bfd_section != NULL |
6088 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
6089 | /* Compress DWARF debug sections. */ | |
12bd6957 | 6090 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6091 | || (elf_symtab_shndx_list (abfd) != NULL |
6092 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6093 | || i == elf_strtab_sec (abfd) |
6094 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6095 | { |
6096 | hdr->sh_offset = -1; | |
252b5132 | 6097 | } |
9ad5cbcf | 6098 | else |
b34976b6 | 6099 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6100 | } |
a485e98e AM |
6101 | |
6102 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6103 | } |
6104 | else | |
6105 | { | |
f3520d2f AM |
6106 | unsigned int alloc; |
6107 | ||
252b5132 | 6108 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6109 | assignment of sections to segments. */ |
f3520d2f AM |
6110 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6111 | return FALSE; | |
6112 | ||
6113 | /* And for non-load sections. */ | |
6114 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6115 | return FALSE; | |
6116 | ||
e36284ab AM |
6117 | if (bed->elf_backend_modify_program_headers != NULL) |
6118 | { | |
6119 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6120 | return FALSE; | |
6121 | } | |
6122 | ||
58e7ebac | 6123 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6124 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac L |
6125 | { |
6126 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
6127 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
6128 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6129 | ||
6130 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6131 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6132 | for (; segment < end_segment; segment++) | |
6133 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6134 | p_vaddr = segment->p_vaddr; | |
6135 | ||
6136 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6137 | segments is non-zero. */ | |
6138 | if (p_vaddr) | |
6139 | i_ehdrp->e_type = ET_EXEC; | |
6140 | } | |
6141 | ||
f3520d2f | 6142 | /* Write out the program headers. */ |
6838f2be | 6143 | alloc = elf_elfheader (abfd)->e_phnum; |
1a9ccd70 NC |
6144 | if (alloc == 0) |
6145 | return TRUE; | |
6146 | ||
1a9ccd70 NC |
6147 | /* PR ld/20815 - Check that the program header segment, if present, will |
6148 | be loaded into memory. FIXME: The check below is not sufficient as | |
6149 | really all PT_LOAD segments should be checked before issuing an error | |
6150 | message. Plus the PHDR segment does not have to be the first segment | |
6151 | in the program header table. But this version of the check should | |
cd584857 NC |
6152 | catch all real world use cases. |
6153 | ||
6154 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6155 | ascending order, as per the ELF spec. But this breaks some programs, | |
6156 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6157 | changed or the programs updated. */ |
1a9ccd70 | 6158 | if (alloc > 1 |
cd584857 | 6159 | && tdata->phdr[0].p_type == PT_PHDR |
d00dd7dc AM |
6160 | && (bed->elf_backend_allow_non_load_phdr == NULL |
6161 | || !bed->elf_backend_allow_non_load_phdr (abfd, tdata->phdr, | |
6162 | alloc)) | |
cd584857 NC |
6163 | && tdata->phdr[1].p_type == PT_LOAD |
6164 | && (tdata->phdr[1].p_vaddr > tdata->phdr[0].p_vaddr | |
6838f2be AM |
6165 | || (tdata->phdr[1].p_vaddr + tdata->phdr[1].p_memsz |
6166 | < tdata->phdr[0].p_vaddr + tdata->phdr[0].p_memsz))) | |
1a9ccd70 NC |
6167 | { |
6168 | /* The fix for this error is usually to edit the linker script being | |
6169 | used and set up the program headers manually. Either that or | |
6170 | leave room for the headers at the start of the SECTIONS. */ | |
6838f2be AM |
6171 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" |
6172 | " by LOAD segment"), | |
1a9ccd70 | 6173 | abfd); |
1a9ccd70 NC |
6174 | return FALSE; |
6175 | } | |
6176 | ||
f3520d2f | 6177 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
cd584857 NC |
6178 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6179 | return FALSE; | |
252b5132 RH |
6180 | } |
6181 | ||
b34976b6 | 6182 | return TRUE; |
252b5132 RH |
6183 | } |
6184 | ||
b34976b6 | 6185 | static bfd_boolean |
217aa764 | 6186 | prep_headers (bfd *abfd) |
252b5132 | 6187 | { |
3d540e93 | 6188 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6189 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6190 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6191 | |
6192 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6193 | |
2b0f7ef9 | 6194 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6195 | if (shstrtab == NULL) |
b34976b6 | 6196 | return FALSE; |
252b5132 RH |
6197 | |
6198 | elf_shstrtab (abfd) = shstrtab; | |
6199 | ||
6200 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6201 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6202 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6203 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6204 | ||
6205 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6206 | i_ehdrp->e_ident[EI_DATA] = | |
6207 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6208 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6209 | ||
252b5132 RH |
6210 | if ((abfd->flags & DYNAMIC) != 0) |
6211 | i_ehdrp->e_type = ET_DYN; | |
6212 | else if ((abfd->flags & EXEC_P) != 0) | |
6213 | i_ehdrp->e_type = ET_EXEC; | |
6214 | else if (bfd_get_format (abfd) == bfd_core) | |
6215 | i_ehdrp->e_type = ET_CORE; | |
6216 | else | |
6217 | i_ehdrp->e_type = ET_REL; | |
6218 | ||
6219 | switch (bfd_get_arch (abfd)) | |
6220 | { | |
6221 | case bfd_arch_unknown: | |
6222 | i_ehdrp->e_machine = EM_NONE; | |
6223 | break; | |
aa4f99bb AO |
6224 | |
6225 | /* There used to be a long list of cases here, each one setting | |
6226 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6227 | in the corresponding bfd definition. To avoid duplication, | |
6228 | the switch was removed. Machines that need special handling | |
6229 | can generally do it in elf_backend_final_write_processing(), | |
6230 | unless they need the information earlier than the final write. | |
6231 | Such need can generally be supplied by replacing the tests for | |
6232 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6233 | default: |
9c5bfbb7 AM |
6234 | i_ehdrp->e_machine = bed->elf_machine_code; |
6235 | } | |
aa4f99bb | 6236 | |
252b5132 RH |
6237 | i_ehdrp->e_version = bed->s->ev_current; |
6238 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6239 | ||
c044fabd | 6240 | /* No program header, for now. */ |
252b5132 RH |
6241 | i_ehdrp->e_phoff = 0; |
6242 | i_ehdrp->e_phentsize = 0; | |
6243 | i_ehdrp->e_phnum = 0; | |
6244 | ||
c044fabd | 6245 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6246 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6247 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6248 | ||
c044fabd | 6249 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6250 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6251 | /* It all happens later. */ |
6252 | ; | |
252b5132 RH |
6253 | else |
6254 | { | |
6255 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6256 | i_ehdrp->e_phoff = 0; |
6257 | } | |
6258 | ||
6259 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6260 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6261 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6262 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6263 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6264 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6265 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6266 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6267 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6268 | return FALSE; |
252b5132 | 6269 | |
b34976b6 | 6270 | return TRUE; |
252b5132 RH |
6271 | } |
6272 | ||
6273 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6274 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6275 | |
0ce398f1 L |
6276 | static bfd_boolean |
6277 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6278 | { |
6279 | file_ptr off; | |
e06efbf1 | 6280 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6281 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6282 | Elf_Internal_Ehdr *i_ehdrp; |
6283 | const struct elf_backend_data *bed; | |
252b5132 | 6284 | |
12bd6957 | 6285 | off = elf_next_file_pos (abfd); |
252b5132 | 6286 | |
e06efbf1 L |
6287 | shdrpp = elf_elfsections (abfd); |
6288 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6289 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6290 | { |
252b5132 | 6291 | shdrp = *shdrpp; |
0ce398f1 L |
6292 | if (shdrp->sh_offset == -1) |
6293 | { | |
3e19fb8f | 6294 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6295 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6296 | || shdrp->sh_type == SHT_RELA); | |
6297 | if (is_rel | |
3e19fb8f | 6298 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
6299 | { |
6300 | if (!is_rel) | |
6301 | { | |
3e19fb8f L |
6302 | const char *name = sec->name; |
6303 | struct bfd_elf_section_data *d; | |
6304 | ||
0ce398f1 | 6305 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6306 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6307 | shdrp->contents)) |
6308 | return FALSE; | |
3e19fb8f L |
6309 | |
6310 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6311 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6312 | { | |
6313 | /* If section is compressed with zlib-gnu, convert | |
6314 | section name from .debug_* to .zdebug_*. */ | |
6315 | char *new_name | |
6316 | = convert_debug_to_zdebug (abfd, name); | |
6317 | if (new_name == NULL) | |
6318 | return FALSE; | |
6319 | name = new_name; | |
6320 | } | |
dd905818 | 6321 | /* Add section name to section name section. */ |
3e19fb8f L |
6322 | if (shdrp->sh_name != (unsigned int) -1) |
6323 | abort (); | |
6324 | shdrp->sh_name | |
6325 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6326 | name, FALSE); | |
6327 | d = elf_section_data (sec); | |
6328 | ||
dd905818 | 6329 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6330 | if (d->rel.hdr |
6331 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6332 | d->rel.hdr, | |
6333 | name, FALSE)) | |
6334 | return FALSE; | |
6335 | if (d->rela.hdr | |
6336 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6337 | d->rela.hdr, | |
91cb26da | 6338 | name, TRUE)) |
3e19fb8f L |
6339 | return FALSE; |
6340 | ||
0ce398f1 | 6341 | /* Update section size and contents. */ |
3e19fb8f L |
6342 | shdrp->sh_size = sec->size; |
6343 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6344 | shdrp->bfd_section->contents = NULL; |
6345 | } | |
6346 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
6347 | off, | |
6348 | TRUE); | |
6349 | } | |
6350 | } | |
252b5132 RH |
6351 | } |
6352 | ||
3e19fb8f L |
6353 | /* Place section name section after DWARF debug sections have been |
6354 | compressed. */ | |
6355 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6356 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6357 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6358 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6359 | ||
6360 | /* Place the section headers. */ | |
a485e98e AM |
6361 | i_ehdrp = elf_elfheader (abfd); |
6362 | bed = get_elf_backend_data (abfd); | |
6363 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6364 | i_ehdrp->e_shoff = off; | |
6365 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6366 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6367 | |
6368 | return TRUE; | |
252b5132 RH |
6369 | } |
6370 | ||
b34976b6 | 6371 | bfd_boolean |
217aa764 | 6372 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6373 | { |
9c5bfbb7 | 6374 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6375 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6376 | bfd_boolean failed; |
9ad5cbcf | 6377 | unsigned int count, num_sec; |
30e8ee25 | 6378 | struct elf_obj_tdata *t; |
252b5132 RH |
6379 | |
6380 | if (! abfd->output_has_begun | |
217aa764 | 6381 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6382 | return FALSE; |
252b5132 RH |
6383 | |
6384 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6385 | |
b34976b6 | 6386 | failed = FALSE; |
252b5132 RH |
6387 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6388 | if (failed) | |
b34976b6 | 6389 | return FALSE; |
252b5132 | 6390 | |
0ce398f1 L |
6391 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6392 | return FALSE; | |
252b5132 | 6393 | |
c044fabd | 6394 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6395 | num_sec = elf_numsections (abfd); |
6396 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6397 | { |
3e19fb8f L |
6398 | i_shdrp[count]->sh_name |
6399 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6400 | i_shdrp[count]->sh_name); | |
252b5132 | 6401 | if (bed->elf_backend_section_processing) |
75506100 MR |
6402 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6403 | return FALSE; | |
252b5132 RH |
6404 | if (i_shdrp[count]->contents) |
6405 | { | |
dc810e39 AM |
6406 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6407 | ||
252b5132 | 6408 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6409 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6410 | return FALSE; |
252b5132 RH |
6411 | } |
6412 | } | |
6413 | ||
6414 | /* Write out the section header names. */ | |
30e8ee25 | 6415 | t = elf_tdata (abfd); |
26ae6d5e | 6416 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6417 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6418 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6419 | return FALSE; |
252b5132 RH |
6420 | |
6421 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 6422 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 6423 | |
ff59fc36 RM |
6424 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6425 | return FALSE; | |
6426 | ||
6427 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6428 | if (t->o->build_id.after_write_object_contents != NULL) |
6429 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6430 | |
6431 | return TRUE; | |
252b5132 RH |
6432 | } |
6433 | ||
b34976b6 | 6434 | bfd_boolean |
217aa764 | 6435 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6436 | { |
c044fabd | 6437 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6438 | return _bfd_elf_write_object_contents (abfd); |
6439 | } | |
c044fabd KH |
6440 | |
6441 | /* Given a section, search the header to find them. */ | |
6442 | ||
cb33740c | 6443 | unsigned int |
198beae2 | 6444 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6445 | { |
9c5bfbb7 | 6446 | const struct elf_backend_data *bed; |
91d6fa6a | 6447 | unsigned int sec_index; |
252b5132 | 6448 | |
9ad5cbcf AM |
6449 | if (elf_section_data (asect) != NULL |
6450 | && elf_section_data (asect)->this_idx != 0) | |
6451 | return elf_section_data (asect)->this_idx; | |
6452 | ||
6453 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6454 | sec_index = SHN_ABS; |
af746e92 | 6455 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6456 | sec_index = SHN_COMMON; |
af746e92 | 6457 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6458 | sec_index = SHN_UNDEF; |
af746e92 | 6459 | else |
91d6fa6a | 6460 | sec_index = SHN_BAD; |
252b5132 | 6461 | |
af746e92 | 6462 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6463 | if (bed->elf_backend_section_from_bfd_section) |
6464 | { | |
91d6fa6a | 6465 | int retval = sec_index; |
9ad5cbcf | 6466 | |
af746e92 AM |
6467 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6468 | return retval; | |
252b5132 RH |
6469 | } |
6470 | ||
91d6fa6a | 6471 | if (sec_index == SHN_BAD) |
af746e92 | 6472 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6473 | |
91d6fa6a | 6474 | return sec_index; |
252b5132 RH |
6475 | } |
6476 | ||
6477 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6478 | on error. */ | |
6479 | ||
6480 | int | |
217aa764 | 6481 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6482 | { |
6483 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6484 | int idx; | |
6485 | flagword flags = asym_ptr->flags; | |
6486 | ||
6487 | /* When gas creates relocations against local labels, it creates its | |
6488 | own symbol for the section, but does put the symbol into the | |
6489 | symbol chain, so udata is 0. When the linker is generating | |
6490 | relocatable output, this section symbol may be for one of the | |
6491 | input sections rather than the output section. */ | |
6492 | if (asym_ptr->udata.i == 0 | |
6493 | && (flags & BSF_SECTION_SYM) | |
6494 | && asym_ptr->section) | |
6495 | { | |
5372391b | 6496 | asection *sec; |
252b5132 RH |
6497 | int indx; |
6498 | ||
5372391b AM |
6499 | sec = asym_ptr->section; |
6500 | if (sec->owner != abfd && sec->output_section != NULL) | |
6501 | sec = sec->output_section; | |
6502 | if (sec->owner == abfd | |
6503 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6504 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6505 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6506 | } | |
6507 | ||
6508 | idx = asym_ptr->udata.i; | |
6509 | ||
6510 | if (idx == 0) | |
6511 | { | |
6512 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6513 | which is used in a relocation entry. */ |
4eca0228 | 6514 | _bfd_error_handler |
695344c0 | 6515 | /* xgettext:c-format */ |
871b3ab2 | 6516 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6517 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6518 | bfd_set_error (bfd_error_no_symbols); |
6519 | return -1; | |
6520 | } | |
6521 | ||
6522 | #if DEBUG & 4 | |
6523 | { | |
6524 | fprintf (stderr, | |
cd9af601 AM |
6525 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6526 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6527 | fflush (stderr); |
6528 | } | |
6529 | #endif | |
6530 | ||
6531 | return idx; | |
6532 | } | |
6533 | ||
84d1d650 | 6534 | /* Rewrite program header information. */ |
252b5132 | 6535 | |
b34976b6 | 6536 | static bfd_boolean |
84d1d650 | 6537 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6538 | { |
b34976b6 AM |
6539 | Elf_Internal_Ehdr *iehdr; |
6540 | struct elf_segment_map *map; | |
6541 | struct elf_segment_map *map_first; | |
6542 | struct elf_segment_map **pointer_to_map; | |
6543 | Elf_Internal_Phdr *segment; | |
6544 | asection *section; | |
6545 | unsigned int i; | |
6546 | unsigned int num_segments; | |
6547 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6548 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6549 | bfd_vma maxpagesize; |
6550 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6551 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6552 | const struct elf_backend_data *bed; |
bc67d8a6 | 6553 | |
caf47ea6 | 6554 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6555 | iehdr = elf_elfheader (ibfd); |
6556 | ||
bc67d8a6 | 6557 | map_first = NULL; |
c044fabd | 6558 | pointer_to_map = &map_first; |
252b5132 RH |
6559 | |
6560 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6561 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6562 | ||
6563 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6564 | #define SEGMENT_END(segment, start) \ |
6565 | (start + (segment->p_memsz > segment->p_filesz \ | |
6566 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6567 | |
eecdbe52 JJ |
6568 | #define SECTION_SIZE(section, segment) \ |
6569 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6570 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6571 | ? section->size : 0) |
eecdbe52 | 6572 | |
b34976b6 | 6573 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6574 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6575 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6576 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6577 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6578 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6579 | |
b34976b6 | 6580 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6581 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6582 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6583 | (section->lma >= base \ | |
eecdbe52 | 6584 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6585 | <= SEGMENT_END (segment, base))) |
252b5132 | 6586 | |
0efc80c8 L |
6587 | /* Handle PT_NOTE segment. */ |
6588 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6589 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6590 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6591 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6592 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6593 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6594 | |
0efc80c8 L |
6595 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6596 | etc. */ | |
6597 | #define IS_COREFILE_NOTE(p, s) \ | |
6598 | (IS_NOTE (p, s) \ | |
6599 | && bfd_get_format (ibfd) == bfd_core \ | |
6600 | && s->vma == 0 \ | |
6601 | && s->lma == 0) | |
6602 | ||
252b5132 RH |
6603 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6604 | linker, which generates a PT_INTERP section with p_vaddr and | |
6605 | p_memsz set to 0. */ | |
aecc8f8a AM |
6606 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6607 | (p->p_vaddr == 0 \ | |
6608 | && p->p_paddr == 0 \ | |
6609 | && p->p_memsz == 0 \ | |
6610 | && p->p_filesz > 0 \ | |
6611 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6612 | && s->size > 0 \ |
aecc8f8a | 6613 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6614 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6615 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6616 | |
bc67d8a6 NC |
6617 | /* Decide if the given section should be included in the given segment. |
6618 | A section will be included if: | |
f5ffc919 | 6619 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6620 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6621 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6622 | segment. |
bc67d8a6 | 6623 | 3. There is an output section associated with it, |
eecdbe52 | 6624 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6625 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6626 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6627 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6628 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6629 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6630 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6631 | ((((segment->p_paddr \ |
6632 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6633 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6634 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6635 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6636 | && segment->p_type != PT_GNU_STACK \ |
6637 | && (segment->p_type != PT_TLS \ | |
6638 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6639 | && (segment->p_type == PT_LOAD \ | |
6640 | || segment->p_type == PT_TLS \ | |
6641 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6642 | && (segment->p_type != PT_DYNAMIC \ | |
6643 | || SECTION_SIZE (section, segment) > 0 \ | |
6644 | || (segment->p_paddr \ | |
6645 | ? segment->p_paddr != section->lma \ | |
6646 | : segment->p_vaddr != section->vma) \ | |
6647 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6648 | == 0)) \ | |
9933dc52 | 6649 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6650 | |
9f17e2a6 L |
6651 | /* If the output section of a section in the input segment is NULL, |
6652 | it is removed from the corresponding output segment. */ | |
6653 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6654 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6655 | && section->output_section != NULL) | |
6656 | ||
b34976b6 | 6657 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6658 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6659 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6660 | ||
6661 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6662 | their VMA address ranges and their LMA address ranges overlap. | |
6663 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6664 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6665 | to the same VMA range, but with the .data section mapped to a different | |
6666 | LMA. */ | |
aecc8f8a | 6667 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6668 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6669 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6670 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6671 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6672 | |
6673 | /* Initialise the segment mark field. */ | |
6674 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6675 | section->segment_mark = FALSE; |
bc67d8a6 | 6676 | |
5c44b38e AM |
6677 | /* The Solaris linker creates program headers in which all the |
6678 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6679 | file, we get confused. Check for this case, and if we find it | |
6680 | don't set the p_paddr_valid fields. */ | |
6681 | p_paddr_valid = FALSE; | |
6682 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6683 | i < num_segments; | |
6684 | i++, segment++) | |
6685 | if (segment->p_paddr != 0) | |
6686 | { | |
6687 | p_paddr_valid = TRUE; | |
6688 | break; | |
6689 | } | |
6690 | ||
252b5132 | 6691 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6692 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6693 | in the loadable segments. These can be created by weird |
aecc8f8a | 6694 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6695 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6696 | i < num_segments; | |
c044fabd | 6697 | i++, segment++) |
252b5132 | 6698 | { |
252b5132 | 6699 | unsigned int j; |
c044fabd | 6700 | Elf_Internal_Phdr *segment2; |
252b5132 | 6701 | |
aecc8f8a AM |
6702 | if (segment->p_type == PT_INTERP) |
6703 | for (section = ibfd->sections; section; section = section->next) | |
6704 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6705 | { | |
6706 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6707 | assignment code will work. */ |
aecc8f8a AM |
6708 | segment->p_vaddr = section->vma; |
6709 | break; | |
6710 | } | |
6711 | ||
bc67d8a6 | 6712 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6713 | { |
6714 | /* Remove PT_GNU_RELRO segment. */ | |
6715 | if (segment->p_type == PT_GNU_RELRO) | |
6716 | segment->p_type = PT_NULL; | |
6717 | continue; | |
6718 | } | |
c044fabd | 6719 | |
bc67d8a6 | 6720 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6721 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6722 | { |
6723 | bfd_signed_vma extra_length; | |
c044fabd | 6724 | |
bc67d8a6 | 6725 | if (segment2->p_type != PT_LOAD |
0067a569 | 6726 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6727 | continue; |
c044fabd | 6728 | |
bc67d8a6 NC |
6729 | /* Merge the two segments together. */ |
6730 | if (segment2->p_vaddr < segment->p_vaddr) | |
6731 | { | |
c044fabd | 6732 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6733 | SEGMENT. */ |
0067a569 AM |
6734 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6735 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6736 | |
bc67d8a6 NC |
6737 | if (extra_length > 0) |
6738 | { | |
0067a569 | 6739 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6740 | segment2->p_filesz += extra_length; |
6741 | } | |
c044fabd | 6742 | |
bc67d8a6 | 6743 | segment->p_type = PT_NULL; |
c044fabd | 6744 | |
bc67d8a6 NC |
6745 | /* Since we have deleted P we must restart the outer loop. */ |
6746 | i = 0; | |
6747 | segment = elf_tdata (ibfd)->phdr; | |
6748 | break; | |
6749 | } | |
6750 | else | |
6751 | { | |
c044fabd | 6752 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6753 | SEGMENT2. */ |
0067a569 AM |
6754 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6755 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6756 | |
bc67d8a6 NC |
6757 | if (extra_length > 0) |
6758 | { | |
0067a569 | 6759 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6760 | segment->p_filesz += extra_length; |
6761 | } | |
c044fabd | 6762 | |
bc67d8a6 NC |
6763 | segment2->p_type = PT_NULL; |
6764 | } | |
6765 | } | |
6766 | } | |
c044fabd | 6767 | |
bc67d8a6 NC |
6768 | /* The second scan attempts to assign sections to segments. */ |
6769 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6770 | i < num_segments; | |
0067a569 | 6771 | i++, segment++) |
bc67d8a6 | 6772 | { |
0067a569 AM |
6773 | unsigned int section_count; |
6774 | asection **sections; | |
6775 | asection *output_section; | |
6776 | unsigned int isec; | |
9933dc52 AM |
6777 | asection *matching_lma; |
6778 | asection *suggested_lma; | |
0067a569 | 6779 | unsigned int j; |
dc810e39 | 6780 | bfd_size_type amt; |
0067a569 | 6781 | asection *first_section; |
bc67d8a6 NC |
6782 | |
6783 | if (segment->p_type == PT_NULL) | |
6784 | continue; | |
c044fabd | 6785 | |
9f17e2a6 | 6786 | first_section = NULL; |
bc67d8a6 | 6787 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6788 | for (section = ibfd->sections, section_count = 0; |
6789 | section != NULL; | |
6790 | section = section->next) | |
9f17e2a6 L |
6791 | { |
6792 | /* Find the first section in the input segment, which may be | |
6793 | removed from the corresponding output segment. */ | |
6794 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6795 | { | |
6796 | if (first_section == NULL) | |
6797 | first_section = section; | |
6798 | if (section->output_section != NULL) | |
6799 | ++section_count; | |
6800 | } | |
6801 | } | |
811072d8 | 6802 | |
b5f852ea NC |
6803 | /* Allocate a segment map big enough to contain |
6804 | all of the sections we have selected. */ | |
dc810e39 AM |
6805 | amt = sizeof (struct elf_segment_map); |
6806 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6807 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6808 | if (map == NULL) |
b34976b6 | 6809 | return FALSE; |
252b5132 RH |
6810 | |
6811 | /* Initialise the fields of the segment map. Default to | |
6812 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
6813 | map->next = NULL; |
6814 | map->p_type = segment->p_type; | |
6815 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 6816 | map->p_flags_valid = 1; |
55d55ac7 | 6817 | |
9f17e2a6 L |
6818 | /* If the first section in the input segment is removed, there is |
6819 | no need to preserve segment physical address in the corresponding | |
6820 | output segment. */ | |
945c025a | 6821 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
6822 | { |
6823 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 6824 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 6825 | } |
252b5132 RH |
6826 | |
6827 | /* Determine if this segment contains the ELF file header | |
6828 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
6829 | map->includes_filehdr = (segment->p_offset == 0 |
6830 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 6831 | map->includes_phdrs = 0; |
252b5132 | 6832 | |
0067a569 | 6833 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 6834 | { |
bc67d8a6 NC |
6835 | map->includes_phdrs = |
6836 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6837 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
6838 | >= ((bfd_vma) iehdr->e_phoff |
6839 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 6840 | |
bc67d8a6 | 6841 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 6842 | phdr_included = TRUE; |
252b5132 RH |
6843 | } |
6844 | ||
bc67d8a6 | 6845 | if (section_count == 0) |
252b5132 RH |
6846 | { |
6847 | /* Special segments, such as the PT_PHDR segment, may contain | |
6848 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 6849 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 6850 | a warning is produced. |
f98450c6 NC |
6851 | There is however the valid use case of embedded systems which |
6852 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
6853 | flash memory with zeros. No warning is shown for that case. */ | |
6854 | if (segment->p_type == PT_LOAD | |
6855 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
6856 | /* xgettext:c-format */ | |
9793eb77 AM |
6857 | _bfd_error_handler |
6858 | (_("%pB: warning: empty loadable segment detected" | |
6859 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
6860 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 6861 | |
bc67d8a6 | 6862 | map->count = 0; |
c044fabd KH |
6863 | *pointer_to_map = map; |
6864 | pointer_to_map = &map->next; | |
252b5132 RH |
6865 | |
6866 | continue; | |
6867 | } | |
6868 | ||
6869 | /* Now scan the sections in the input BFD again and attempt | |
6870 | to add their corresponding output sections to the segment map. | |
6871 | The problem here is how to handle an output section which has | |
6872 | been moved (ie had its LMA changed). There are four possibilities: | |
6873 | ||
6874 | 1. None of the sections have been moved. | |
6875 | In this case we can continue to use the segment LMA from the | |
6876 | input BFD. | |
6877 | ||
6878 | 2. All of the sections have been moved by the same amount. | |
6879 | In this case we can change the segment's LMA to match the LMA | |
6880 | of the first section. | |
6881 | ||
6882 | 3. Some of the sections have been moved, others have not. | |
6883 | In this case those sections which have not been moved can be | |
6884 | placed in the current segment which will have to have its size, | |
6885 | and possibly its LMA changed, and a new segment or segments will | |
6886 | have to be created to contain the other sections. | |
6887 | ||
b5f852ea | 6888 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
6889 | In this case we can change the segment's LMA to match the LMA |
6890 | of the first section and we will have to create a new segment | |
6891 | or segments to contain the other sections. | |
6892 | ||
6893 | In order to save time, we allocate an array to hold the section | |
6894 | pointers that we are interested in. As these sections get assigned | |
6895 | to a segment, they are removed from this array. */ | |
6896 | ||
a50b1753 | 6897 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 6898 | if (sections == NULL) |
b34976b6 | 6899 | return FALSE; |
252b5132 RH |
6900 | |
6901 | /* Step One: Scan for segment vs section LMA conflicts. | |
6902 | Also add the sections to the section array allocated above. | |
6903 | Also add the sections to the current segment. In the common | |
6904 | case, where the sections have not been moved, this means that | |
6905 | we have completely filled the segment, and there is nothing | |
6906 | more to do. */ | |
252b5132 | 6907 | isec = 0; |
9933dc52 AM |
6908 | matching_lma = NULL; |
6909 | suggested_lma = NULL; | |
252b5132 | 6910 | |
461c4b2e | 6911 | for (section = first_section, j = 0; |
bc67d8a6 NC |
6912 | section != NULL; |
6913 | section = section->next) | |
252b5132 | 6914 | { |
caf47ea6 | 6915 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 6916 | { |
bc67d8a6 NC |
6917 | output_section = section->output_section; |
6918 | ||
0067a569 | 6919 | sections[j++] = section; |
252b5132 RH |
6920 | |
6921 | /* The Solaris native linker always sets p_paddr to 0. | |
6922 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
6923 | correct value. Note - some backends require that |
6924 | p_paddr be left as zero. */ | |
5c44b38e | 6925 | if (!p_paddr_valid |
4455705d | 6926 | && segment->p_vaddr != 0 |
0067a569 | 6927 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 6928 | && isec == 0 |
bc67d8a6 | 6929 | && output_section->lma != 0 |
9933dc52 AM |
6930 | && (align_power (segment->p_vaddr |
6931 | + (map->includes_filehdr | |
6932 | ? iehdr->e_ehsize : 0) | |
6933 | + (map->includes_phdrs | |
6934 | ? iehdr->e_phnum * iehdr->e_phentsize | |
6935 | : 0), | |
6936 | output_section->alignment_power) | |
6937 | == output_section->vma)) | |
bc67d8a6 | 6938 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
6939 | |
6940 | /* Match up the physical address of the segment with the | |
6941 | LMA address of the output section. */ | |
bc67d8a6 | 6942 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 6943 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
6944 | || (bed->want_p_paddr_set_to_zero |
6945 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 6946 | { |
9933dc52 AM |
6947 | if (matching_lma == NULL |
6948 | || output_section->lma < matching_lma->lma) | |
6949 | matching_lma = output_section; | |
252b5132 RH |
6950 | |
6951 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 6952 | then it does not overlap any other section within that |
252b5132 | 6953 | segment. */ |
0067a569 AM |
6954 | map->sections[isec++] = output_section; |
6955 | } | |
9933dc52 AM |
6956 | else if (suggested_lma == NULL) |
6957 | suggested_lma = output_section; | |
147d51c2 L |
6958 | |
6959 | if (j == section_count) | |
6960 | break; | |
252b5132 RH |
6961 | } |
6962 | } | |
6963 | ||
bc67d8a6 | 6964 | BFD_ASSERT (j == section_count); |
252b5132 RH |
6965 | |
6966 | /* Step Two: Adjust the physical address of the current segment, | |
6967 | if necessary. */ | |
bc67d8a6 | 6968 | if (isec == section_count) |
252b5132 RH |
6969 | { |
6970 | /* All of the sections fitted within the segment as currently | |
6971 | specified. This is the default case. Add the segment to | |
6972 | the list of built segments and carry on to process the next | |
6973 | program header in the input BFD. */ | |
bc67d8a6 | 6974 | map->count = section_count; |
c044fabd KH |
6975 | *pointer_to_map = map; |
6976 | pointer_to_map = &map->next; | |
08a40648 | 6977 | |
5c44b38e AM |
6978 | if (p_paddr_valid |
6979 | && !bed->want_p_paddr_set_to_zero | |
9933dc52 | 6980 | && matching_lma->lma != map->p_paddr |
5c44b38e AM |
6981 | && !map->includes_filehdr |
6982 | && !map->includes_phdrs) | |
3271a814 NS |
6983 | /* There is some padding before the first section in the |
6984 | segment. So, we must account for that in the output | |
6985 | segment's vma. */ | |
9933dc52 | 6986 | map->p_vaddr_offset = matching_lma->lma - map->p_paddr; |
08a40648 | 6987 | |
252b5132 RH |
6988 | free (sections); |
6989 | continue; | |
6990 | } | |
252b5132 RH |
6991 | else |
6992 | { | |
9933dc52 AM |
6993 | /* Change the current segment's physical address to match |
6994 | the LMA of the first section that fitted, or if no | |
6995 | section fitted, the first section. */ | |
6996 | if (matching_lma == NULL) | |
6997 | matching_lma = suggested_lma; | |
6998 | ||
6999 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7000 | |
bc67d8a6 NC |
7001 | /* Offset the segment physical address from the lma |
7002 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7003 | if (map->includes_phdrs) |
010c8431 | 7004 | { |
9933dc52 AM |
7005 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7006 | ||
7007 | /* iehdr->e_phnum is just an estimate of the number | |
7008 | of program headers that we will need. Make a note | |
7009 | here of the number we used and the segment we chose | |
7010 | to hold these headers, so that we can adjust the | |
7011 | offset when we know the correct value. */ | |
7012 | phdr_adjust_num = iehdr->e_phnum; | |
7013 | phdr_adjust_seg = map; | |
010c8431 | 7014 | } |
252b5132 | 7015 | |
9933dc52 | 7016 | if (map->includes_filehdr) |
bc67d8a6 | 7017 | { |
9933dc52 AM |
7018 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7019 | map->p_paddr -= iehdr->e_ehsize; | |
7020 | /* We've subtracted off the size of headers from the | |
7021 | first section lma, but there may have been some | |
7022 | alignment padding before that section too. Try to | |
7023 | account for that by adjusting the segment lma down to | |
7024 | the same alignment. */ | |
7025 | if (segment->p_align != 0 && segment->p_align < align) | |
7026 | align = segment->p_align; | |
7027 | map->p_paddr &= -align; | |
bc67d8a6 | 7028 | } |
252b5132 RH |
7029 | } |
7030 | ||
7031 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7032 | those that fit to the current segment and removing them from the |
252b5132 RH |
7033 | sections array; but making sure not to leave large gaps. Once all |
7034 | possible sections have been assigned to the current segment it is | |
7035 | added to the list of built segments and if sections still remain | |
7036 | to be assigned, a new segment is constructed before repeating | |
7037 | the loop. */ | |
7038 | isec = 0; | |
7039 | do | |
7040 | { | |
bc67d8a6 | 7041 | map->count = 0; |
9933dc52 | 7042 | suggested_lma = NULL; |
252b5132 RH |
7043 | |
7044 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7045 | for (j = 0; j < section_count; j++) |
252b5132 | 7046 | { |
bc67d8a6 | 7047 | section = sections[j]; |
252b5132 | 7048 | |
bc67d8a6 | 7049 | if (section == NULL) |
252b5132 RH |
7050 | continue; |
7051 | ||
bc67d8a6 | 7052 | output_section = section->output_section; |
252b5132 | 7053 | |
bc67d8a6 | 7054 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7055 | |
bc67d8a6 NC |
7056 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7057 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7058 | { |
bc67d8a6 | 7059 | if (map->count == 0) |
252b5132 RH |
7060 | { |
7061 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7062 | the beginning of the segment, then something is |
7063 | wrong. */ | |
9933dc52 AM |
7064 | if (align_power (map->p_paddr |
7065 | + (map->includes_filehdr | |
7066 | ? iehdr->e_ehsize : 0) | |
7067 | + (map->includes_phdrs | |
7068 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7069 | : 0), | |
7070 | output_section->alignment_power) | |
7071 | != output_section->lma) | |
252b5132 RH |
7072 | abort (); |
7073 | } | |
7074 | else | |
7075 | { | |
0067a569 | 7076 | asection *prev_sec; |
252b5132 | 7077 | |
bc67d8a6 | 7078 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7079 | |
7080 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7081 | and the start of this section is more than |
7082 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7083 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7084 | maxpagesize) |
caf47ea6 | 7085 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7086 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7087 | > output_section->lma)) |
252b5132 | 7088 | { |
9933dc52 AM |
7089 | if (suggested_lma == NULL) |
7090 | suggested_lma = output_section; | |
252b5132 RH |
7091 | |
7092 | continue; | |
7093 | } | |
7094 | } | |
7095 | ||
bc67d8a6 | 7096 | map->sections[map->count++] = output_section; |
252b5132 RH |
7097 | ++isec; |
7098 | sections[j] = NULL; | |
9933dc52 AM |
7099 | if (segment->p_type == PT_LOAD) |
7100 | section->segment_mark = TRUE; | |
0067a569 | 7101 | } |
9933dc52 AM |
7102 | else if (suggested_lma == NULL) |
7103 | suggested_lma = output_section; | |
252b5132 RH |
7104 | } |
7105 | ||
bc67d8a6 | 7106 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
7107 | |
7108 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7109 | *pointer_to_map = map; |
7110 | pointer_to_map = &map->next; | |
252b5132 | 7111 | |
bc67d8a6 | 7112 | if (isec < section_count) |
252b5132 RH |
7113 | { |
7114 | /* We still have not allocated all of the sections to | |
7115 | segments. Create a new segment here, initialise it | |
7116 | and carry on looping. */ | |
dc810e39 AM |
7117 | amt = sizeof (struct elf_segment_map); |
7118 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 7119 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7120 | if (map == NULL) |
5ed6aba4 NC |
7121 | { |
7122 | free (sections); | |
7123 | return FALSE; | |
7124 | } | |
252b5132 RH |
7125 | |
7126 | /* Initialise the fields of the segment map. Set the physical | |
7127 | physical address to the LMA of the first section that has | |
7128 | not yet been assigned. */ | |
0067a569 AM |
7129 | map->next = NULL; |
7130 | map->p_type = segment->p_type; | |
7131 | map->p_flags = segment->p_flags; | |
7132 | map->p_flags_valid = 1; | |
9933dc52 | 7133 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7134 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7135 | map->includes_filehdr = 0; |
0067a569 | 7136 | map->includes_phdrs = 0; |
252b5132 RH |
7137 | } |
7138 | } | |
bc67d8a6 | 7139 | while (isec < section_count); |
252b5132 RH |
7140 | |
7141 | free (sections); | |
7142 | } | |
7143 | ||
12bd6957 | 7144 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7145 | |
7146 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7147 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7148 | the offset if necessary. */ |
7149 | if (phdr_adjust_seg != NULL) | |
7150 | { | |
7151 | unsigned int count; | |
c044fabd | 7152 | |
bc67d8a6 | 7153 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7154 | count++; |
252b5132 | 7155 | |
bc67d8a6 NC |
7156 | if (count > phdr_adjust_num) |
7157 | phdr_adjust_seg->p_paddr | |
7158 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7159 | |
7160 | for (map = map_first; map != NULL; map = map->next) | |
7161 | if (map->p_type == PT_PHDR) | |
7162 | { | |
7163 | bfd_vma adjust | |
7164 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7165 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7166 | break; | |
7167 | } | |
bc67d8a6 | 7168 | } |
c044fabd | 7169 | |
bc67d8a6 | 7170 | #undef SEGMENT_END |
eecdbe52 | 7171 | #undef SECTION_SIZE |
bc67d8a6 NC |
7172 | #undef IS_CONTAINED_BY_VMA |
7173 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7174 | #undef IS_NOTE |
252b5132 | 7175 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7176 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7177 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7178 | #undef INCLUDE_SECTION_IN_SEGMENT |
7179 | #undef SEGMENT_AFTER_SEGMENT | |
7180 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7181 | return TRUE; |
252b5132 RH |
7182 | } |
7183 | ||
84d1d650 L |
7184 | /* Copy ELF program header information. */ |
7185 | ||
7186 | static bfd_boolean | |
7187 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7188 | { | |
7189 | Elf_Internal_Ehdr *iehdr; | |
7190 | struct elf_segment_map *map; | |
7191 | struct elf_segment_map *map_first; | |
7192 | struct elf_segment_map **pointer_to_map; | |
7193 | Elf_Internal_Phdr *segment; | |
7194 | unsigned int i; | |
7195 | unsigned int num_segments; | |
7196 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7197 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7198 | |
7199 | iehdr = elf_elfheader (ibfd); | |
7200 | ||
7201 | map_first = NULL; | |
7202 | pointer_to_map = &map_first; | |
7203 | ||
88967714 AM |
7204 | /* If all the segment p_paddr fields are zero, don't set |
7205 | map->p_paddr_valid. */ | |
7206 | p_paddr_valid = FALSE; | |
84d1d650 | 7207 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7208 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7209 | i < num_segments; | |
7210 | i++, segment++) | |
7211 | if (segment->p_paddr != 0) | |
7212 | { | |
7213 | p_paddr_valid = TRUE; | |
7214 | break; | |
7215 | } | |
7216 | ||
84d1d650 L |
7217 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7218 | i < num_segments; | |
7219 | i++, segment++) | |
7220 | { | |
7221 | asection *section; | |
7222 | unsigned int section_count; | |
7223 | bfd_size_type amt; | |
7224 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7225 | asection *first_section = NULL; |
a76e6f2f | 7226 | asection *lowest_section; |
84d1d650 | 7227 | |
84d1d650 L |
7228 | /* Compute how many sections are in this segment. */ |
7229 | for (section = ibfd->sections, section_count = 0; | |
7230 | section != NULL; | |
7231 | section = section->next) | |
7232 | { | |
7233 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7234 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7235 | { |
a76e6f2f AM |
7236 | if (first_section == NULL) |
7237 | first_section = section; | |
3271a814 NS |
7238 | section_count++; |
7239 | } | |
84d1d650 L |
7240 | } |
7241 | ||
7242 | /* Allocate a segment map big enough to contain | |
7243 | all of the sections we have selected. */ | |
7244 | amt = sizeof (struct elf_segment_map); | |
7245 | if (section_count != 0) | |
7246 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 7247 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7248 | if (map == NULL) |
7249 | return FALSE; | |
7250 | ||
7251 | /* Initialize the fields of the output segment map with the | |
7252 | input segment. */ | |
7253 | map->next = NULL; | |
7254 | map->p_type = segment->p_type; | |
7255 | map->p_flags = segment->p_flags; | |
7256 | map->p_flags_valid = 1; | |
7257 | map->p_paddr = segment->p_paddr; | |
88967714 | 7258 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7259 | map->p_align = segment->p_align; |
7260 | map->p_align_valid = 1; | |
3271a814 | 7261 | map->p_vaddr_offset = 0; |
84d1d650 | 7262 | |
04c3a755 NS |
7263 | if (map->p_type == PT_GNU_RELRO |
7264 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7265 | { |
7266 | /* The PT_GNU_RELRO segment may contain the first a few | |
7267 | bytes in the .got.plt section even if the whole .got.plt | |
7268 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7269 | change the size of the PT_GNU_RELRO segment. |
7270 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7271 | systems. */ | |
9433b9b1 | 7272 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7273 | map->p_size_valid = 1; |
7274 | } | |
7275 | ||
84d1d650 L |
7276 | /* Determine if this segment contains the ELF file header |
7277 | and if it contains the program headers themselves. */ | |
7278 | map->includes_filehdr = (segment->p_offset == 0 | |
7279 | && segment->p_filesz >= iehdr->e_ehsize); | |
7280 | ||
7281 | map->includes_phdrs = 0; | |
7282 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7283 | { | |
7284 | map->includes_phdrs = | |
7285 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7286 | && (segment->p_offset + segment->p_filesz | |
7287 | >= ((bfd_vma) iehdr->e_phoff | |
7288 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7289 | ||
7290 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7291 | phdr_included = TRUE; | |
7292 | } | |
7293 | ||
bbefd0a9 | 7294 | lowest_section = NULL; |
84d1d650 L |
7295 | if (section_count != 0) |
7296 | { | |
7297 | unsigned int isec = 0; | |
7298 | ||
53020534 | 7299 | for (section = first_section; |
84d1d650 L |
7300 | section != NULL; |
7301 | section = section->next) | |
7302 | { | |
7303 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7304 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7305 | { |
7306 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7307 | if ((section->flags & SEC_ALLOC) != 0) |
7308 | { | |
7309 | bfd_vma seg_off; | |
7310 | ||
bbefd0a9 AM |
7311 | if (lowest_section == NULL |
7312 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7313 | lowest_section = section; |
7314 | ||
a76e6f2f AM |
7315 | /* Section lmas are set up from PT_LOAD header |
7316 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7317 | If this header has a p_paddr that disagrees | |
7318 | with the section lma, flag the p_paddr as | |
7319 | invalid. */ | |
7320 | if ((section->flags & SEC_LOAD) != 0) | |
7321 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7322 | else | |
7323 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7324 | if (section->lma - segment->p_paddr != seg_off) | |
7325 | map->p_paddr_valid = FALSE; | |
7326 | } | |
53020534 L |
7327 | if (isec == section_count) |
7328 | break; | |
7329 | } | |
84d1d650 L |
7330 | } |
7331 | } | |
7332 | ||
a76e6f2f AM |
7333 | if (map->includes_filehdr && lowest_section != NULL) |
7334 | /* We need to keep the space used by the headers fixed. */ | |
7335 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 7336 | |
a76e6f2f AM |
7337 | if (!map->includes_phdrs |
7338 | && !map->includes_filehdr | |
7339 | && map->p_paddr_valid) | |
7340 | /* There is some other padding before the first section. */ | |
7341 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
7342 | - segment->p_paddr); | |
7343 | ||
84d1d650 L |
7344 | map->count = section_count; |
7345 | *pointer_to_map = map; | |
7346 | pointer_to_map = &map->next; | |
7347 | } | |
7348 | ||
12bd6957 | 7349 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7350 | return TRUE; |
7351 | } | |
7352 | ||
7353 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7354 | information. */ | |
7355 | ||
7356 | static bfd_boolean | |
7357 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7358 | { | |
84d1d650 L |
7359 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7360 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7361 | return TRUE; | |
7362 | ||
7363 | if (elf_tdata (ibfd)->phdr == NULL) | |
7364 | return TRUE; | |
7365 | ||
7366 | if (ibfd->xvec == obfd->xvec) | |
7367 | { | |
cb3ff1e5 NC |
7368 | /* Check to see if any sections in the input BFD |
7369 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7370 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7371 | asection *section, *osec; |
7372 | unsigned int i, num_segments; | |
7373 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7374 | const struct elf_backend_data *bed; |
7375 | ||
7376 | bed = get_elf_backend_data (ibfd); | |
7377 | ||
7378 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7379 | if (bed->want_p_paddr_set_to_zero) | |
7380 | goto rewrite; | |
84d1d650 L |
7381 | |
7382 | /* Initialize the segment mark field. */ | |
7383 | for (section = obfd->sections; section != NULL; | |
7384 | section = section->next) | |
7385 | section->segment_mark = FALSE; | |
7386 | ||
7387 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7388 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7389 | i < num_segments; | |
7390 | i++, segment++) | |
7391 | { | |
5f6999aa NC |
7392 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7393 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7394 | which severly confuses things, so always regenerate the segment | |
7395 | map in this case. */ | |
7396 | if (segment->p_paddr == 0 | |
7397 | && segment->p_memsz == 0 | |
7398 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7399 | goto rewrite; |
5f6999aa | 7400 | |
84d1d650 L |
7401 | for (section = ibfd->sections; |
7402 | section != NULL; section = section->next) | |
7403 | { | |
7404 | /* We mark the output section so that we know it comes | |
7405 | from the input BFD. */ | |
7406 | osec = section->output_section; | |
7407 | if (osec) | |
7408 | osec->segment_mark = TRUE; | |
7409 | ||
7410 | /* Check if this section is covered by the segment. */ | |
7411 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7412 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7413 | { |
7414 | /* FIXME: Check if its output section is changed or | |
7415 | removed. What else do we need to check? */ | |
7416 | if (osec == NULL | |
7417 | || section->flags != osec->flags | |
7418 | || section->lma != osec->lma | |
7419 | || section->vma != osec->vma | |
7420 | || section->size != osec->size | |
7421 | || section->rawsize != osec->rawsize | |
7422 | || section->alignment_power != osec->alignment_power) | |
7423 | goto rewrite; | |
7424 | } | |
7425 | } | |
7426 | } | |
7427 | ||
cb3ff1e5 | 7428 | /* Check to see if any output section do not come from the |
84d1d650 L |
7429 | input BFD. */ |
7430 | for (section = obfd->sections; section != NULL; | |
7431 | section = section->next) | |
7432 | { | |
535b785f | 7433 | if (!section->segment_mark) |
84d1d650 L |
7434 | goto rewrite; |
7435 | else | |
7436 | section->segment_mark = FALSE; | |
7437 | } | |
7438 | ||
7439 | return copy_elf_program_header (ibfd, obfd); | |
7440 | } | |
7441 | ||
7442 | rewrite: | |
f1d85785 L |
7443 | if (ibfd->xvec == obfd->xvec) |
7444 | { | |
7445 | /* When rewriting program header, set the output maxpagesize to | |
7446 | the maximum alignment of input PT_LOAD segments. */ | |
7447 | Elf_Internal_Phdr *segment; | |
7448 | unsigned int i; | |
7449 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7450 | bfd_vma maxpagesize = 0; | |
7451 | ||
7452 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7453 | i < num_segments; | |
7454 | i++, segment++) | |
7455 | if (segment->p_type == PT_LOAD | |
7456 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7457 | { |
7458 | /* PR 17512: file: f17299af. */ | |
7459 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7460 | /* xgettext:c-format */ |
2dcf00ce AM |
7461 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7462 | PRIx64 " is too large"), | |
7463 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7464 | else |
7465 | maxpagesize = segment->p_align; | |
7466 | } | |
f1d85785 L |
7467 | |
7468 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7469 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7470 | } | |
7471 | ||
84d1d650 L |
7472 | return rewrite_elf_program_header (ibfd, obfd); |
7473 | } | |
7474 | ||
ccd2ec6a L |
7475 | /* Initialize private output section information from input section. */ |
7476 | ||
7477 | bfd_boolean | |
7478 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7479 | asection *isec, | |
7480 | bfd *obfd, | |
7481 | asection *osec, | |
7482 | struct bfd_link_info *link_info) | |
7483 | ||
7484 | { | |
7485 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7486 | bfd_boolean final_link = (link_info != NULL |
7487 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7488 | |
7489 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7490 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7491 | return TRUE; | |
7492 | ||
ba85c43e NC |
7493 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7494 | ||
dfa7b0b8 AM |
7495 | /* For objcopy and relocatable link, don't copy the output ELF |
7496 | section type from input if the output BFD section flags have been | |
7497 | set to something different. For a final link allow some flags | |
7498 | that the linker clears to differ. */ | |
42bb2e33 | 7499 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7500 | && (osec->flags == isec->flags |
7501 | || (final_link | |
7502 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7503 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7504 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7505 | |
7506 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7507 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7508 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7509 | |
a91e1603 L |
7510 | /* Copy sh_info from input for mbind section. */ |
7511 | if (elf_section_flags (isec) & SHF_GNU_MBIND) | |
7512 | elf_section_data (osec)->this_hdr.sh_info | |
7513 | = elf_section_data (isec)->this_hdr.sh_info; | |
7514 | ||
ccd2ec6a L |
7515 | /* Set things up for objcopy and relocatable link. The output |
7516 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7517 | to the input group members. Ignore linker created group section. | |
7518 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7519 | if ((link_info == NULL |
7520 | || !link_info->resolve_section_groups) | |
7521 | && (elf_sec_group (isec) == NULL | |
7522 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7523 | { |
7bdf4127 AB |
7524 | if (elf_section_flags (isec) & SHF_GROUP) |
7525 | elf_section_flags (osec) |= SHF_GROUP; | |
7526 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7527 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7528 | } |
7529 | ||
7bdf4127 AB |
7530 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7531 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7532 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7533 | & SHF_COMPRESSED); | |
7534 | ||
ccd2ec6a L |
7535 | ihdr = &elf_section_data (isec)->this_hdr; |
7536 | ||
7537 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7538 | don't use the output section of the linked-to section since it | |
7539 | may be NULL at this point. */ | |
7540 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7541 | { | |
7542 | ohdr = &elf_section_data (osec)->this_hdr; | |
7543 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7544 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7545 | } | |
7546 | ||
7547 | osec->use_rela_p = isec->use_rela_p; | |
7548 | ||
7549 | return TRUE; | |
7550 | } | |
7551 | ||
252b5132 RH |
7552 | /* Copy private section information. This copies over the entsize |
7553 | field, and sometimes the info field. */ | |
7554 | ||
b34976b6 | 7555 | bfd_boolean |
217aa764 AM |
7556 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7557 | asection *isec, | |
7558 | bfd *obfd, | |
7559 | asection *osec) | |
252b5132 RH |
7560 | { |
7561 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7562 | ||
7563 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7564 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7565 | return TRUE; |
252b5132 | 7566 | |
252b5132 RH |
7567 | ihdr = &elf_section_data (isec)->this_hdr; |
7568 | ohdr = &elf_section_data (osec)->this_hdr; | |
7569 | ||
7570 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7571 | ||
7572 | if (ihdr->sh_type == SHT_SYMTAB | |
7573 | || ihdr->sh_type == SHT_DYNSYM | |
7574 | || ihdr->sh_type == SHT_GNU_verneed | |
7575 | || ihdr->sh_type == SHT_GNU_verdef) | |
7576 | ohdr->sh_info = ihdr->sh_info; | |
7577 | ||
ccd2ec6a L |
7578 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7579 | NULL); | |
252b5132 RH |
7580 | } |
7581 | ||
d0bf826b AM |
7582 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7583 | necessary if we are removing either the SHT_GROUP section or any of | |
7584 | the group member sections. DISCARDED is the value that a section's | |
7585 | output_section has if the section will be discarded, NULL when this | |
7586 | function is called from objcopy, bfd_abs_section_ptr when called | |
7587 | from the linker. */ | |
80fccad2 BW |
7588 | |
7589 | bfd_boolean | |
d0bf826b | 7590 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7591 | { |
30288845 AM |
7592 | asection *isec; |
7593 | ||
30288845 | 7594 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7595 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7596 | { |
7597 | asection *first = elf_next_in_group (isec); | |
7598 | asection *s = first; | |
d0bf826b AM |
7599 | bfd_size_type removed = 0; |
7600 | ||
30288845 AM |
7601 | while (s != NULL) |
7602 | { | |
415f38a6 AM |
7603 | /* If this member section is being output but the |
7604 | SHT_GROUP section is not, then clear the group info | |
7605 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7606 | if (s->output_section != discarded |
7607 | && isec->output_section == discarded) | |
30288845 AM |
7608 | { |
7609 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7610 | elf_group_name (s->output_section) = NULL; | |
7611 | } | |
415f38a6 AM |
7612 | /* Conversely, if the member section is not being output |
7613 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7614 | else if (s->output_section == discarded |
7615 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7616 | { |
7617 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7618 | removed += 4; | |
7619 | if (elf_sec->rel.hdr != NULL | |
7620 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7621 | removed += 4; | |
7622 | if (elf_sec->rela.hdr != NULL | |
7623 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7624 | removed += 4; | |
7625 | } | |
30288845 AM |
7626 | s = elf_next_in_group (s); |
7627 | if (s == first) | |
7628 | break; | |
7629 | } | |
d0bf826b AM |
7630 | if (removed != 0) |
7631 | { | |
7632 | if (discarded != NULL) | |
7633 | { | |
7634 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7635 | adjust the input section size. */ |
d0bf826b AM |
7636 | if (isec->rawsize == 0) |
7637 | isec->rawsize = isec->size; | |
7638 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7639 | if (isec->size <= 4) |
7640 | { | |
7641 | isec->size = 0; | |
7642 | isec->flags |= SEC_EXCLUDE; | |
7643 | } | |
d0bf826b AM |
7644 | } |
7645 | else | |
7646 | { | |
7647 | /* Adjust the output section size when called from | |
7648 | objcopy. */ | |
7649 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7650 | if (isec->output_section->size <= 4) |
7651 | { | |
7652 | isec->output_section->size = 0; | |
7653 | isec->output_section->flags |= SEC_EXCLUDE; | |
7654 | } | |
d0bf826b AM |
7655 | } |
7656 | } | |
30288845 AM |
7657 | } |
7658 | ||
80fccad2 BW |
7659 | return TRUE; |
7660 | } | |
7661 | ||
d0bf826b AM |
7662 | /* Copy private header information. */ |
7663 | ||
7664 | bfd_boolean | |
7665 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7666 | { | |
7667 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7668 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7669 | return TRUE; | |
7670 | ||
7671 | /* Copy over private BFD data if it has not already been copied. | |
7672 | This must be done here, rather than in the copy_private_bfd_data | |
7673 | entry point, because the latter is called after the section | |
7674 | contents have been set, which means that the program headers have | |
7675 | already been worked out. */ | |
12bd6957 | 7676 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7677 | { |
7678 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7679 | return FALSE; | |
7680 | } | |
7681 | ||
7682 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7683 | } | |
7684 | ||
252b5132 RH |
7685 | /* Copy private symbol information. If this symbol is in a section |
7686 | which we did not map into a BFD section, try to map the section | |
7687 | index correctly. We use special macro definitions for the mapped | |
7688 | section indices; these definitions are interpreted by the | |
7689 | swap_out_syms function. */ | |
7690 | ||
9ad5cbcf AM |
7691 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7692 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7693 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7694 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7695 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7696 | |
b34976b6 | 7697 | bfd_boolean |
217aa764 AM |
7698 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7699 | asymbol *isymarg, | |
7700 | bfd *obfd, | |
7701 | asymbol *osymarg) | |
252b5132 RH |
7702 | { |
7703 | elf_symbol_type *isym, *osym; | |
7704 | ||
7705 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7706 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7707 | return TRUE; |
252b5132 RH |
7708 | |
7709 | isym = elf_symbol_from (ibfd, isymarg); | |
7710 | osym = elf_symbol_from (obfd, osymarg); | |
7711 | ||
7712 | if (isym != NULL | |
8424d8f5 | 7713 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7714 | && osym != NULL |
7715 | && bfd_is_abs_section (isym->symbol.section)) | |
7716 | { | |
7717 | unsigned int shndx; | |
7718 | ||
7719 | shndx = isym->internal_elf_sym.st_shndx; | |
7720 | if (shndx == elf_onesymtab (ibfd)) | |
7721 | shndx = MAP_ONESYMTAB; | |
7722 | else if (shndx == elf_dynsymtab (ibfd)) | |
7723 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7724 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7725 | shndx = MAP_STRTAB; |
12bd6957 | 7726 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7727 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7728 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7729 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7730 | osym->internal_elf_sym.st_shndx = shndx; |
7731 | } | |
7732 | ||
b34976b6 | 7733 | return TRUE; |
252b5132 RH |
7734 | } |
7735 | ||
7736 | /* Swap out the symbols. */ | |
7737 | ||
b34976b6 | 7738 | static bfd_boolean |
217aa764 | 7739 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7740 | struct elf_strtab_hash **sttp, |
217aa764 | 7741 | int relocatable_p) |
252b5132 | 7742 | { |
9c5bfbb7 | 7743 | const struct elf_backend_data *bed; |
079e9a2f AM |
7744 | int symcount; |
7745 | asymbol **syms; | |
ef10c3ac | 7746 | struct elf_strtab_hash *stt; |
079e9a2f | 7747 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7748 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7749 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7750 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7751 | bfd_byte *outbound_syms; |
7752 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7753 | unsigned long outbound_syms_index; |
7754 | unsigned long outbound_shndx_index; | |
079e9a2f | 7755 | int idx; |
12bd6957 | 7756 | unsigned int num_locals; |
079e9a2f | 7757 | bfd_size_type amt; |
174fd7f9 | 7758 | bfd_boolean name_local_sections; |
252b5132 | 7759 | |
12bd6957 | 7760 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7761 | return FALSE; |
252b5132 | 7762 | |
c044fabd | 7763 | /* Dump out the symtabs. */ |
ef10c3ac | 7764 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7765 | if (stt == NULL) |
b34976b6 | 7766 | return FALSE; |
252b5132 | 7767 | |
079e9a2f AM |
7768 | bed = get_elf_backend_data (abfd); |
7769 | symcount = bfd_get_symcount (abfd); | |
7770 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7771 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7772 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7773 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7774 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7775 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7776 | |
7777 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7778 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7779 | ||
ef10c3ac L |
7780 | /* Allocate buffer to swap out the .strtab section. */ |
7781 | symstrtab = (struct elf_sym_strtab *) bfd_malloc ((symcount + 1) | |
7782 | * sizeof (*symstrtab)); | |
7783 | if (symstrtab == NULL) | |
7784 | { | |
7785 | _bfd_elf_strtab_free (stt); | |
7786 | return FALSE; | |
7787 | } | |
7788 | ||
a50b1753 | 7789 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 7790 | bed->s->sizeof_sym); |
079e9a2f | 7791 | if (outbound_syms == NULL) |
5ed6aba4 | 7792 | { |
ef10c3ac L |
7793 | error_return: |
7794 | _bfd_elf_strtab_free (stt); | |
7795 | free (symstrtab); | |
5ed6aba4 NC |
7796 | return FALSE; |
7797 | } | |
217aa764 | 7798 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 7799 | outbound_syms_index = 0; |
252b5132 | 7800 | |
9ad5cbcf | 7801 | outbound_shndx = NULL; |
ef10c3ac | 7802 | outbound_shndx_index = 0; |
6a40cf0c NC |
7803 | |
7804 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 7805 | { |
6a40cf0c NC |
7806 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
7807 | if (symtab_shndx_hdr->sh_name != 0) | |
7808 | { | |
7809 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
7810 | outbound_shndx = (bfd_byte *) | |
7811 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
7812 | if (outbound_shndx == NULL) | |
7813 | goto error_return; | |
5ed6aba4 | 7814 | |
6a40cf0c NC |
7815 | symtab_shndx_hdr->contents = outbound_shndx; |
7816 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
7817 | symtab_shndx_hdr->sh_size = amt; | |
7818 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
7819 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
7820 | } | |
7821 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
7822 | } |
7823 | ||
589e6347 | 7824 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
7825 | { |
7826 | /* Fill in zeroth symbol and swap it out. */ | |
7827 | Elf_Internal_Sym sym; | |
7828 | sym.st_name = 0; | |
7829 | sym.st_value = 0; | |
7830 | sym.st_size = 0; | |
7831 | sym.st_info = 0; | |
7832 | sym.st_other = 0; | |
7833 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 7834 | sym.st_target_internal = 0; |
ef10c3ac L |
7835 | symstrtab[0].sym = sym; |
7836 | symstrtab[0].dest_index = outbound_syms_index; | |
7837 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
7838 | outbound_syms_index++; | |
9ad5cbcf | 7839 | if (outbound_shndx != NULL) |
ef10c3ac | 7840 | outbound_shndx_index++; |
079e9a2f | 7841 | } |
252b5132 | 7842 | |
174fd7f9 RS |
7843 | name_local_sections |
7844 | = (bed->elf_backend_name_local_section_symbols | |
7845 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
7846 | ||
079e9a2f | 7847 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 7848 | for (idx = 0; idx < symcount;) |
252b5132 | 7849 | { |
252b5132 | 7850 | Elf_Internal_Sym sym; |
079e9a2f AM |
7851 | bfd_vma value = syms[idx]->value; |
7852 | elf_symbol_type *type_ptr; | |
7853 | flagword flags = syms[idx]->flags; | |
7854 | int type; | |
252b5132 | 7855 | |
174fd7f9 RS |
7856 | if (!name_local_sections |
7857 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
7858 | { |
7859 | /* Local section symbols have no name. */ | |
ef10c3ac | 7860 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
7861 | } |
7862 | else | |
7863 | { | |
ef10c3ac L |
7864 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
7865 | to get the final offset for st_name. */ | |
7866 | sym.st_name | |
7867 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
7868 | FALSE); | |
079e9a2f | 7869 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 7870 | goto error_return; |
079e9a2f | 7871 | } |
252b5132 | 7872 | |
079e9a2f | 7873 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 7874 | |
079e9a2f AM |
7875 | if ((flags & BSF_SECTION_SYM) == 0 |
7876 | && bfd_is_com_section (syms[idx]->section)) | |
7877 | { | |
7878 | /* ELF common symbols put the alignment into the `value' field, | |
7879 | and the size into the `size' field. This is backwards from | |
7880 | how BFD handles it, so reverse it here. */ | |
7881 | sym.st_size = value; | |
7882 | if (type_ptr == NULL | |
7883 | || type_ptr->internal_elf_sym.st_value == 0) | |
7884 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
7885 | else | |
7886 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
7887 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
7888 | (abfd, syms[idx]->section); | |
7889 | } | |
7890 | else | |
7891 | { | |
7892 | asection *sec = syms[idx]->section; | |
cb33740c | 7893 | unsigned int shndx; |
252b5132 | 7894 | |
079e9a2f AM |
7895 | if (sec->output_section) |
7896 | { | |
7897 | value += sec->output_offset; | |
7898 | sec = sec->output_section; | |
7899 | } | |
589e6347 | 7900 | |
079e9a2f AM |
7901 | /* Don't add in the section vma for relocatable output. */ |
7902 | if (! relocatable_p) | |
7903 | value += sec->vma; | |
7904 | sym.st_value = value; | |
7905 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
7906 | ||
7907 | if (bfd_is_abs_section (sec) | |
7908 | && type_ptr != NULL | |
7909 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
7910 | { | |
7911 | /* This symbol is in a real ELF section which we did | |
7912 | not create as a BFD section. Undo the mapping done | |
7913 | by copy_private_symbol_data. */ | |
7914 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
7915 | switch (shndx) | |
7916 | { | |
7917 | case MAP_ONESYMTAB: | |
7918 | shndx = elf_onesymtab (abfd); | |
7919 | break; | |
7920 | case MAP_DYNSYMTAB: | |
7921 | shndx = elf_dynsymtab (abfd); | |
7922 | break; | |
7923 | case MAP_STRTAB: | |
12bd6957 | 7924 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
7925 | break; |
7926 | case MAP_SHSTRTAB: | |
12bd6957 | 7927 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 7928 | break; |
9ad5cbcf | 7929 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
7930 | if (elf_symtab_shndx_list (abfd)) |
7931 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 7932 | break; |
079e9a2f | 7933 | default: |
15bc576a | 7934 | shndx = SHN_ABS; |
079e9a2f AM |
7935 | break; |
7936 | } | |
7937 | } | |
7938 | else | |
7939 | { | |
7940 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 7941 | |
cb33740c | 7942 | if (shndx == SHN_BAD) |
079e9a2f AM |
7943 | { |
7944 | asection *sec2; | |
7945 | ||
7946 | /* Writing this would be a hell of a lot easier if | |
7947 | we had some decent documentation on bfd, and | |
7948 | knew what to expect of the library, and what to | |
7949 | demand of applications. For example, it | |
7950 | appears that `objcopy' might not set the | |
7951 | section of a symbol to be a section that is | |
7952 | actually in the output file. */ | |
7953 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
7954 | if (sec2 != NULL) |
7955 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
7956 | if (shndx == SHN_BAD) | |
589e6347 | 7957 | { |
695344c0 | 7958 | /* xgettext:c-format */ |
9793eb77 AM |
7959 | _bfd_error_handler |
7960 | (_("unable to find equivalent output section" | |
7961 | " for symbol '%s' from section '%s'"), | |
7962 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
7963 | sec->name); | |
811072d8 | 7964 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 7965 | goto error_return; |
589e6347 | 7966 | } |
079e9a2f AM |
7967 | } |
7968 | } | |
252b5132 | 7969 | |
079e9a2f AM |
7970 | sym.st_shndx = shndx; |
7971 | } | |
252b5132 | 7972 | |
13ae64f3 JJ |
7973 | if ((flags & BSF_THREAD_LOCAL) != 0) |
7974 | type = STT_TLS; | |
d8045f23 NC |
7975 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
7976 | type = STT_GNU_IFUNC; | |
13ae64f3 | 7977 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
7978 | type = STT_FUNC; |
7979 | else if ((flags & BSF_OBJECT) != 0) | |
7980 | type = STT_OBJECT; | |
d9352518 DB |
7981 | else if ((flags & BSF_RELC) != 0) |
7982 | type = STT_RELC; | |
7983 | else if ((flags & BSF_SRELC) != 0) | |
7984 | type = STT_SRELC; | |
079e9a2f AM |
7985 | else |
7986 | type = STT_NOTYPE; | |
252b5132 | 7987 | |
13ae64f3 JJ |
7988 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
7989 | type = STT_TLS; | |
7990 | ||
589e6347 | 7991 | /* Processor-specific types. */ |
079e9a2f AM |
7992 | if (type_ptr != NULL |
7993 | && bed->elf_backend_get_symbol_type) | |
7994 | type = ((*bed->elf_backend_get_symbol_type) | |
7995 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 7996 | |
079e9a2f AM |
7997 | if (flags & BSF_SECTION_SYM) |
7998 | { | |
7999 | if (flags & BSF_GLOBAL) | |
8000 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8001 | else | |
8002 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8003 | } | |
8004 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8005 | { |
b8871f35 L |
8006 | if (type != STT_TLS) |
8007 | { | |
8008 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8009 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8010 | ? STT_COMMON : STT_OBJECT); | |
8011 | else | |
8012 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8013 | ? STT_COMMON : STT_OBJECT); | |
8014 | } | |
8015 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8016 | } |
079e9a2f AM |
8017 | else if (bfd_is_und_section (syms[idx]->section)) |
8018 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8019 | ? STB_WEAK | |
8020 | : STB_GLOBAL), | |
8021 | type); | |
8022 | else if (flags & BSF_FILE) | |
8023 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8024 | else | |
8025 | { | |
8026 | int bind = STB_LOCAL; | |
252b5132 | 8027 | |
079e9a2f AM |
8028 | if (flags & BSF_LOCAL) |
8029 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8030 | else if (flags & BSF_GNU_UNIQUE) |
8031 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8032 | else if (flags & BSF_WEAK) |
8033 | bind = STB_WEAK; | |
8034 | else if (flags & BSF_GLOBAL) | |
8035 | bind = STB_GLOBAL; | |
252b5132 | 8036 | |
079e9a2f AM |
8037 | sym.st_info = ELF_ST_INFO (bind, type); |
8038 | } | |
252b5132 | 8039 | |
079e9a2f | 8040 | if (type_ptr != NULL) |
35fc36a8 RS |
8041 | { |
8042 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8043 | sym.st_target_internal | |
8044 | = type_ptr->internal_elf_sym.st_target_internal; | |
8045 | } | |
079e9a2f | 8046 | else |
35fc36a8 RS |
8047 | { |
8048 | sym.st_other = 0; | |
8049 | sym.st_target_internal = 0; | |
8050 | } | |
252b5132 | 8051 | |
ef10c3ac L |
8052 | idx++; |
8053 | symstrtab[idx].sym = sym; | |
8054 | symstrtab[idx].dest_index = outbound_syms_index; | |
8055 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8056 | ||
8057 | outbound_syms_index++; | |
9ad5cbcf | 8058 | if (outbound_shndx != NULL) |
ef10c3ac L |
8059 | outbound_shndx_index++; |
8060 | } | |
8061 | ||
8062 | /* Finalize the .strtab section. */ | |
8063 | _bfd_elf_strtab_finalize (stt); | |
8064 | ||
8065 | /* Swap out the .strtab section. */ | |
8066 | for (idx = 0; idx <= symcount; idx++) | |
8067 | { | |
8068 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8069 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8070 | elfsym->sym.st_name = 0; | |
8071 | else | |
8072 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8073 | elfsym->sym.st_name); | |
8074 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8075 | (outbound_syms | |
8076 | + (elfsym->dest_index | |
8077 | * bed->s->sizeof_sym)), | |
8078 | (outbound_shndx | |
8079 | + (elfsym->destshndx_index | |
8080 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8081 | } |
ef10c3ac | 8082 | free (symstrtab); |
252b5132 | 8083 | |
079e9a2f | 8084 | *sttp = stt; |
ef10c3ac | 8085 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8086 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8087 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8088 | symstrtab_hdr->sh_addr = 0; |
8089 | symstrtab_hdr->sh_entsize = 0; | |
8090 | symstrtab_hdr->sh_link = 0; | |
8091 | symstrtab_hdr->sh_info = 0; | |
8092 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8093 | |
b34976b6 | 8094 | return TRUE; |
252b5132 RH |
8095 | } |
8096 | ||
8097 | /* Return the number of bytes required to hold the symtab vector. | |
8098 | ||
8099 | Note that we base it on the count plus 1, since we will null terminate | |
8100 | the vector allocated based on this size. However, the ELF symbol table | |
8101 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8102 | ||
8103 | long | |
217aa764 | 8104 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
8105 | { |
8106 | long symcount; | |
8107 | long symtab_size; | |
8108 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8109 | ||
8110 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
8111 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8112 | if (symcount > 0) | |
8113 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8114 | |
8115 | return symtab_size; | |
8116 | } | |
8117 | ||
8118 | long | |
217aa764 | 8119 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
8120 | { |
8121 | long symcount; | |
8122 | long symtab_size; | |
8123 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8124 | ||
8125 | if (elf_dynsymtab (abfd) == 0) | |
8126 | { | |
8127 | bfd_set_error (bfd_error_invalid_operation); | |
8128 | return -1; | |
8129 | } | |
8130 | ||
8131 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
8132 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8133 | if (symcount > 0) | |
8134 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8135 | |
8136 | return symtab_size; | |
8137 | } | |
8138 | ||
8139 | long | |
217aa764 AM |
8140 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8141 | sec_ptr asect) | |
252b5132 RH |
8142 | { |
8143 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
8144 | } | |
8145 | ||
8146 | /* Canonicalize the relocs. */ | |
8147 | ||
8148 | long | |
217aa764 AM |
8149 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8150 | sec_ptr section, | |
8151 | arelent **relptr, | |
8152 | asymbol **symbols) | |
252b5132 RH |
8153 | { |
8154 | arelent *tblptr; | |
8155 | unsigned int i; | |
9c5bfbb7 | 8156 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8157 | |
b34976b6 | 8158 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8159 | return -1; |
8160 | ||
8161 | tblptr = section->relocation; | |
8162 | for (i = 0; i < section->reloc_count; i++) | |
8163 | *relptr++ = tblptr++; | |
8164 | ||
8165 | *relptr = NULL; | |
8166 | ||
8167 | return section->reloc_count; | |
8168 | } | |
8169 | ||
8170 | long | |
6cee3f79 | 8171 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8172 | { |
9c5bfbb7 | 8173 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8174 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8175 | |
8176 | if (symcount >= 0) | |
8177 | bfd_get_symcount (abfd) = symcount; | |
8178 | return symcount; | |
8179 | } | |
8180 | ||
8181 | long | |
217aa764 AM |
8182 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8183 | asymbol **allocation) | |
252b5132 | 8184 | { |
9c5bfbb7 | 8185 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8186 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8187 | |
8188 | if (symcount >= 0) | |
8189 | bfd_get_dynamic_symcount (abfd) = symcount; | |
8190 | return symcount; | |
252b5132 RH |
8191 | } |
8192 | ||
8615f3f2 AM |
8193 | /* Return the size required for the dynamic reloc entries. Any loadable |
8194 | section that was actually installed in the BFD, and has type SHT_REL | |
8195 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8196 | dynamic reloc section. */ | |
252b5132 RH |
8197 | |
8198 | long | |
217aa764 | 8199 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
8200 | { |
8201 | long ret; | |
8202 | asection *s; | |
8203 | ||
8204 | if (elf_dynsymtab (abfd) == 0) | |
8205 | { | |
8206 | bfd_set_error (bfd_error_invalid_operation); | |
8207 | return -1; | |
8208 | } | |
8209 | ||
8210 | ret = sizeof (arelent *); | |
8211 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 8212 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8213 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8214 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 8215 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
8216 | * sizeof (arelent *)); |
8217 | ||
8218 | return ret; | |
8219 | } | |
8220 | ||
8615f3f2 AM |
8221 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8222 | dynamic relocations as a single block, although they are actually | |
8223 | associated with particular sections; the interface, which was | |
8224 | designed for SunOS style shared libraries, expects that there is only | |
8225 | one set of dynamic relocs. Any loadable section that was actually | |
8226 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8227 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8228 | |
8229 | long | |
217aa764 AM |
8230 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8231 | arelent **storage, | |
8232 | asymbol **syms) | |
252b5132 | 8233 | { |
217aa764 | 8234 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8235 | asection *s; |
8236 | long ret; | |
8237 | ||
8238 | if (elf_dynsymtab (abfd) == 0) | |
8239 | { | |
8240 | bfd_set_error (bfd_error_invalid_operation); | |
8241 | return -1; | |
8242 | } | |
8243 | ||
8244 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8245 | ret = 0; | |
8246 | for (s = abfd->sections; s != NULL; s = s->next) | |
8247 | { | |
266b05cf | 8248 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8249 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8250 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8251 | { | |
8252 | arelent *p; | |
8253 | long count, i; | |
8254 | ||
b34976b6 | 8255 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8256 | return -1; |
eea6121a | 8257 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8258 | p = s->relocation; |
8259 | for (i = 0; i < count; i++) | |
8260 | *storage++ = p++; | |
8261 | ret += count; | |
8262 | } | |
8263 | } | |
8264 | ||
8265 | *storage = NULL; | |
8266 | ||
8267 | return ret; | |
8268 | } | |
8269 | \f | |
8270 | /* Read in the version information. */ | |
8271 | ||
b34976b6 | 8272 | bfd_boolean |
fc0e6df6 | 8273 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8274 | { |
8275 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8276 | unsigned int freeidx = 0; |
8277 | ||
8278 | if (elf_dynverref (abfd) != 0) | |
8279 | { | |
8280 | Elf_Internal_Shdr *hdr; | |
8281 | Elf_External_Verneed *everneed; | |
8282 | Elf_Internal_Verneed *iverneed; | |
8283 | unsigned int i; | |
d0fb9a8d | 8284 | bfd_byte *contents_end; |
fc0e6df6 PB |
8285 | |
8286 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8287 | ||
bd61e135 AM |
8288 | if (hdr->sh_info == 0 |
8289 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8290 | { |
601a03ba | 8291 | error_return_bad_verref: |
4eca0228 | 8292 | _bfd_error_handler |
871b3ab2 | 8293 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8294 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8295 | error_return_verref: |
8296 | elf_tdata (abfd)->verref = NULL; | |
8297 | elf_tdata (abfd)->cverrefs = 0; | |
8298 | goto error_return; | |
8299 | } | |
601a03ba AM |
8300 | |
8301 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
8302 | if (contents == NULL) | |
8303 | goto error_return_verref; | |
8304 | ||
fc0e6df6 PB |
8305 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8306 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8307 | goto error_return_verref; |
fc0e6df6 | 8308 | |
601a03ba | 8309 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8310 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8311 | |
8312 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8313 | goto error_return_verref; |
8314 | ||
8315 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8316 | == sizeof (Elf_External_Vernaux)); | |
8317 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8318 | everneed = (Elf_External_Verneed *) contents; |
8319 | iverneed = elf_tdata (abfd)->verref; | |
8320 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8321 | { | |
8322 | Elf_External_Vernaux *evernaux; | |
8323 | Elf_Internal_Vernaux *ivernaux; | |
8324 | unsigned int j; | |
8325 | ||
8326 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8327 | ||
8328 | iverneed->vn_bfd = abfd; | |
8329 | ||
8330 | iverneed->vn_filename = | |
8331 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8332 | iverneed->vn_file); | |
8333 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8334 | goto error_return_bad_verref; |
fc0e6df6 | 8335 | |
d0fb9a8d JJ |
8336 | if (iverneed->vn_cnt == 0) |
8337 | iverneed->vn_auxptr = NULL; | |
8338 | else | |
8339 | { | |
a50b1753 | 8340 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8341 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8342 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8343 | if (iverneed->vn_auxptr == NULL) |
8344 | goto error_return_verref; | |
8345 | } | |
8346 | ||
8347 | if (iverneed->vn_aux | |
8348 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8349 | goto error_return_bad_verref; |
fc0e6df6 PB |
8350 | |
8351 | evernaux = ((Elf_External_Vernaux *) | |
8352 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8353 | ivernaux = iverneed->vn_auxptr; | |
8354 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8355 | { | |
8356 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8357 | ||
8358 | ivernaux->vna_nodename = | |
8359 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8360 | ivernaux->vna_name); | |
8361 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8362 | goto error_return_bad_verref; |
fc0e6df6 | 8363 | |
25ff461f AM |
8364 | if (ivernaux->vna_other > freeidx) |
8365 | freeidx = ivernaux->vna_other; | |
8366 | ||
8367 | ivernaux->vna_nextptr = NULL; | |
8368 | if (ivernaux->vna_next == 0) | |
8369 | { | |
8370 | iverneed->vn_cnt = j + 1; | |
8371 | break; | |
8372 | } | |
fc0e6df6 PB |
8373 | if (j + 1 < iverneed->vn_cnt) |
8374 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8375 | |
d0fb9a8d JJ |
8376 | if (ivernaux->vna_next |
8377 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8378 | goto error_return_bad_verref; |
d0fb9a8d | 8379 | |
fc0e6df6 PB |
8380 | evernaux = ((Elf_External_Vernaux *) |
8381 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8382 | } |
8383 | ||
25ff461f AM |
8384 | iverneed->vn_nextref = NULL; |
8385 | if (iverneed->vn_next == 0) | |
8386 | break; | |
fc0e6df6 PB |
8387 | if (i + 1 < hdr->sh_info) |
8388 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8389 | |
d0fb9a8d JJ |
8390 | if (iverneed->vn_next |
8391 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8392 | goto error_return_bad_verref; |
d0fb9a8d | 8393 | |
fc0e6df6 PB |
8394 | everneed = ((Elf_External_Verneed *) |
8395 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8396 | } | |
25ff461f | 8397 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8398 | |
8399 | free (contents); | |
8400 | contents = NULL; | |
8401 | } | |
252b5132 RH |
8402 | |
8403 | if (elf_dynverdef (abfd) != 0) | |
8404 | { | |
8405 | Elf_Internal_Shdr *hdr; | |
8406 | Elf_External_Verdef *everdef; | |
8407 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8408 | Elf_Internal_Verdef *iverdefarr; |
8409 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8410 | unsigned int i; |
062e2358 | 8411 | unsigned int maxidx; |
d0fb9a8d | 8412 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8413 | |
8414 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8415 | ||
601a03ba AM |
8416 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8417 | { | |
8418 | error_return_bad_verdef: | |
4eca0228 | 8419 | _bfd_error_handler |
871b3ab2 | 8420 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8421 | bfd_set_error (bfd_error_bad_value); |
8422 | error_return_verdef: | |
8423 | elf_tdata (abfd)->verdef = NULL; | |
8424 | elf_tdata (abfd)->cverdefs = 0; | |
8425 | goto error_return; | |
8426 | } | |
8427 | ||
a50b1753 | 8428 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8429 | if (contents == NULL) |
601a03ba | 8430 | goto error_return_verdef; |
252b5132 | 8431 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8432 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8433 | goto error_return_verdef; |
d0fb9a8d JJ |
8434 | |
8435 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8436 | >= sizeof (Elf_External_Verdaux)); | |
8437 | contents_end_def = contents + hdr->sh_size | |
8438 | - sizeof (Elf_External_Verdef); | |
8439 | contents_end_aux = contents + hdr->sh_size | |
8440 | - sizeof (Elf_External_Verdaux); | |
8441 | ||
f631889e UD |
8442 | /* We know the number of entries in the section but not the maximum |
8443 | index. Therefore we have to run through all entries and find | |
8444 | the maximum. */ | |
252b5132 | 8445 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8446 | maxidx = 0; |
8447 | for (i = 0; i < hdr->sh_info; ++i) | |
8448 | { | |
8449 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8450 | ||
601a03ba AM |
8451 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8452 | goto error_return_bad_verdef; | |
062e2358 AM |
8453 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8454 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8455 | |
25ff461f AM |
8456 | if (iverdefmem.vd_next == 0) |
8457 | break; | |
8458 | ||
d0fb9a8d JJ |
8459 | if (iverdefmem.vd_next |
8460 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8461 | goto error_return_bad_verdef; |
d0fb9a8d | 8462 | |
f631889e UD |
8463 | everdef = ((Elf_External_Verdef *) |
8464 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8465 | } | |
8466 | ||
fc0e6df6 PB |
8467 | if (default_imported_symver) |
8468 | { | |
8469 | if (freeidx > maxidx) | |
8470 | maxidx = ++freeidx; | |
8471 | else | |
8472 | freeidx = ++maxidx; | |
8473 | } | |
201159ec | 8474 | |
601a03ba AM |
8475 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8476 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8477 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8478 | goto error_return_verdef; |
f631889e UD |
8479 | |
8480 | elf_tdata (abfd)->cverdefs = maxidx; | |
8481 | ||
8482 | everdef = (Elf_External_Verdef *) contents; | |
8483 | iverdefarr = elf_tdata (abfd)->verdef; | |
8484 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8485 | { |
8486 | Elf_External_Verdaux *everdaux; | |
8487 | Elf_Internal_Verdaux *iverdaux; | |
8488 | unsigned int j; | |
8489 | ||
f631889e UD |
8490 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8491 | ||
d0fb9a8d | 8492 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8493 | goto error_return_bad_verdef; |
d0fb9a8d | 8494 | |
f631889e | 8495 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8496 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8497 | |
8498 | iverdef->vd_bfd = abfd; | |
8499 | ||
d0fb9a8d JJ |
8500 | if (iverdef->vd_cnt == 0) |
8501 | iverdef->vd_auxptr = NULL; | |
8502 | else | |
8503 | { | |
a50b1753 | 8504 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8505 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8506 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8507 | if (iverdef->vd_auxptr == NULL) |
8508 | goto error_return_verdef; | |
8509 | } | |
8510 | ||
8511 | if (iverdef->vd_aux | |
8512 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8513 | goto error_return_bad_verdef; |
252b5132 RH |
8514 | |
8515 | everdaux = ((Elf_External_Verdaux *) | |
8516 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8517 | iverdaux = iverdef->vd_auxptr; | |
8518 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8519 | { | |
8520 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8521 | ||
8522 | iverdaux->vda_nodename = | |
8523 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8524 | iverdaux->vda_name); | |
8525 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8526 | goto error_return_bad_verdef; |
252b5132 | 8527 | |
25ff461f AM |
8528 | iverdaux->vda_nextptr = NULL; |
8529 | if (iverdaux->vda_next == 0) | |
8530 | { | |
8531 | iverdef->vd_cnt = j + 1; | |
8532 | break; | |
8533 | } | |
252b5132 RH |
8534 | if (j + 1 < iverdef->vd_cnt) |
8535 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8536 | |
d0fb9a8d JJ |
8537 | if (iverdaux->vda_next |
8538 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8539 | goto error_return_bad_verdef; |
d0fb9a8d | 8540 | |
252b5132 RH |
8541 | everdaux = ((Elf_External_Verdaux *) |
8542 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8543 | } | |
8544 | ||
595bce75 | 8545 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8546 | if (iverdef->vd_cnt) |
8547 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8548 | |
25ff461f AM |
8549 | iverdef->vd_nextdef = NULL; |
8550 | if (iverdef->vd_next == 0) | |
8551 | break; | |
d0fb9a8d | 8552 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8553 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8554 | |
8555 | everdef = ((Elf_External_Verdef *) | |
8556 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8557 | } | |
8558 | ||
8559 | free (contents); | |
8560 | contents = NULL; | |
8561 | } | |
fc0e6df6 | 8562 | else if (default_imported_symver) |
252b5132 | 8563 | { |
fc0e6df6 PB |
8564 | if (freeidx < 3) |
8565 | freeidx = 3; | |
8566 | else | |
8567 | freeidx++; | |
252b5132 | 8568 | |
a50b1753 | 8569 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8570 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8571 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8572 | goto error_return; |
8573 | ||
fc0e6df6 PB |
8574 | elf_tdata (abfd)->cverdefs = freeidx; |
8575 | } | |
252b5132 | 8576 | |
fc0e6df6 PB |
8577 | /* Create a default version based on the soname. */ |
8578 | if (default_imported_symver) | |
8579 | { | |
8580 | Elf_Internal_Verdef *iverdef; | |
8581 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8582 | |
5bb3703f | 8583 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8584 | |
fc0e6df6 PB |
8585 | iverdef->vd_version = VER_DEF_CURRENT; |
8586 | iverdef->vd_flags = 0; | |
8587 | iverdef->vd_ndx = freeidx; | |
8588 | iverdef->vd_cnt = 1; | |
252b5132 | 8589 | |
fc0e6df6 | 8590 | iverdef->vd_bfd = abfd; |
252b5132 | 8591 | |
fc0e6df6 PB |
8592 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8593 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8594 | goto error_return_verdef; |
fc0e6df6 | 8595 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8596 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8597 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8598 | if (iverdef->vd_auxptr == NULL) |
8599 | goto error_return_verdef; | |
252b5132 | 8600 | |
fc0e6df6 PB |
8601 | iverdaux = iverdef->vd_auxptr; |
8602 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8603 | } |
8604 | ||
b34976b6 | 8605 | return TRUE; |
252b5132 RH |
8606 | |
8607 | error_return: | |
5ed6aba4 | 8608 | if (contents != NULL) |
252b5132 | 8609 | free (contents); |
b34976b6 | 8610 | return FALSE; |
252b5132 RH |
8611 | } |
8612 | \f | |
8613 | asymbol * | |
217aa764 | 8614 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8615 | { |
8616 | elf_symbol_type *newsym; | |
8617 | ||
201159ec | 8618 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof * newsym); |
252b5132 RH |
8619 | if (!newsym) |
8620 | return NULL; | |
201159ec NC |
8621 | newsym->symbol.the_bfd = abfd; |
8622 | return &newsym->symbol; | |
252b5132 RH |
8623 | } |
8624 | ||
8625 | void | |
217aa764 AM |
8626 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8627 | asymbol *symbol, | |
8628 | symbol_info *ret) | |
252b5132 RH |
8629 | { |
8630 | bfd_symbol_info (symbol, ret); | |
8631 | } | |
8632 | ||
8633 | /* Return whether a symbol name implies a local symbol. Most targets | |
8634 | use this function for the is_local_label_name entry point, but some | |
8635 | override it. */ | |
8636 | ||
b34976b6 | 8637 | bfd_boolean |
217aa764 AM |
8638 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8639 | const char *name) | |
252b5132 RH |
8640 | { |
8641 | /* Normal local symbols start with ``.L''. */ | |
8642 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8643 | return TRUE; |
252b5132 RH |
8644 | |
8645 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8646 | DWARF debugging symbols starting with ``..''. */ | |
8647 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8648 | return TRUE; |
252b5132 RH |
8649 | |
8650 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8651 | emitting DWARF debugging output. I suspect this is actually a | |
8652 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8653 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8654 | underscore to be emitted on some ELF targets). For ease of use, | |
8655 | we treat such symbols as local. */ | |
8656 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8657 | return TRUE; |
252b5132 | 8658 | |
b1fa9dd6 NC |
8659 | /* Treat assembler generated fake symbols, dollar local labels and |
8660 | forward-backward labels (aka local labels) as locals. | |
8661 | These labels have the form: | |
8662 | ||
07d6d2b8 | 8663 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8664 | |
8665 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8666 | ||
8667 | Versions which start with .L will have already been matched above, | |
8668 | so we only need to match the rest. */ | |
8669 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8670 | { | |
8671 | bfd_boolean ret = FALSE; | |
8672 | const char * p; | |
8673 | char c; | |
8674 | ||
8675 | for (p = name + 2; (c = *p); p++) | |
8676 | { | |
8677 | if (c == 1 || c == 2) | |
8678 | { | |
8679 | if (c == 1 && p == name + 2) | |
8680 | /* A fake symbol. */ | |
8681 | return TRUE; | |
8682 | ||
8683 | /* FIXME: We are being paranoid here and treating symbols like | |
8684 | L0^Bfoo as if there were non-local, on the grounds that the | |
8685 | assembler will never generate them. But can any symbol | |
8686 | containing an ASCII value in the range 1-31 ever be anything | |
8687 | other than some kind of local ? */ | |
8688 | ret = TRUE; | |
8689 | } | |
8690 | ||
8691 | if (! ISDIGIT (c)) | |
8692 | { | |
8693 | ret = FALSE; | |
8694 | break; | |
8695 | } | |
8696 | } | |
8697 | return ret; | |
8698 | } | |
ffa54770 | 8699 | |
b34976b6 | 8700 | return FALSE; |
252b5132 RH |
8701 | } |
8702 | ||
8703 | alent * | |
217aa764 AM |
8704 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8705 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8706 | { |
8707 | abort (); | |
8708 | return NULL; | |
8709 | } | |
8710 | ||
b34976b6 | 8711 | bfd_boolean |
217aa764 AM |
8712 | _bfd_elf_set_arch_mach (bfd *abfd, |
8713 | enum bfd_architecture arch, | |
8714 | unsigned long machine) | |
252b5132 RH |
8715 | { |
8716 | /* If this isn't the right architecture for this backend, and this | |
8717 | isn't the generic backend, fail. */ | |
8718 | if (arch != get_elf_backend_data (abfd)->arch | |
8719 | && arch != bfd_arch_unknown | |
8720 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8721 | return FALSE; |
252b5132 RH |
8722 | |
8723 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8724 | } | |
8725 | ||
d1fad7c6 NC |
8726 | /* Find the nearest line to a particular section and offset, |
8727 | for error reporting. */ | |
8728 | ||
b34976b6 | 8729 | bfd_boolean |
217aa764 | 8730 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8731 | asymbol **symbols, |
fb167eb2 | 8732 | asection *section, |
217aa764 AM |
8733 | bfd_vma offset, |
8734 | const char **filename_ptr, | |
8735 | const char **functionname_ptr, | |
fb167eb2 AM |
8736 | unsigned int *line_ptr, |
8737 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8738 | { |
b34976b6 | 8739 | bfd_boolean found; |
d1fad7c6 | 8740 | |
fb167eb2 | 8741 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8742 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
8743 | line_ptr, discriminator_ptr, |
8744 | dwarf_debug_sections, 0, | |
e00e8198 AM |
8745 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8746 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8747 | filename_ptr, functionname_ptr, | |
8748 | line_ptr)) | |
d1fad7c6 NC |
8749 | { |
8750 | if (!*functionname_ptr) | |
e00e8198 AM |
8751 | _bfd_elf_find_function (abfd, symbols, section, offset, |
8752 | *filename_ptr ? NULL : filename_ptr, | |
8753 | functionname_ptr); | |
b34976b6 | 8754 | return TRUE; |
d1fad7c6 NC |
8755 | } |
8756 | ||
8757 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
8758 | &found, filename_ptr, |
8759 | functionname_ptr, line_ptr, | |
8760 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 8761 | return FALSE; |
dc43ada5 | 8762 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 8763 | return TRUE; |
d1fad7c6 NC |
8764 | |
8765 | if (symbols == NULL) | |
b34976b6 | 8766 | return FALSE; |
d1fad7c6 | 8767 | |
e00e8198 AM |
8768 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
8769 | filename_ptr, functionname_ptr)) | |
b34976b6 | 8770 | return FALSE; |
d1fad7c6 | 8771 | |
252b5132 | 8772 | *line_ptr = 0; |
b34976b6 | 8773 | return TRUE; |
252b5132 RH |
8774 | } |
8775 | ||
5420f73d L |
8776 | /* Find the line for a symbol. */ |
8777 | ||
8778 | bfd_boolean | |
8779 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
8780 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 8781 | { |
fb167eb2 AM |
8782 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
8783 | filename_ptr, NULL, line_ptr, NULL, | |
8784 | dwarf_debug_sections, 0, | |
8785 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
8786 | } |
8787 | ||
4ab527b0 FF |
8788 | /* After a call to bfd_find_nearest_line, successive calls to |
8789 | bfd_find_inliner_info can be used to get source information about | |
8790 | each level of function inlining that terminated at the address | |
8791 | passed to bfd_find_nearest_line. Currently this is only supported | |
8792 | for DWARF2 with appropriate DWARF3 extensions. */ | |
8793 | ||
8794 | bfd_boolean | |
8795 | _bfd_elf_find_inliner_info (bfd *abfd, | |
8796 | const char **filename_ptr, | |
8797 | const char **functionname_ptr, | |
8798 | unsigned int *line_ptr) | |
8799 | { | |
8800 | bfd_boolean found; | |
8801 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
8802 | functionname_ptr, line_ptr, | |
8803 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
8804 | return found; | |
8805 | } | |
8806 | ||
252b5132 | 8807 | int |
a6b96beb | 8808 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 8809 | { |
8ded5a0f AM |
8810 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
8811 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 8812 | |
0e1862bb | 8813 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 8814 | { |
12bd6957 | 8815 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 8816 | |
62d7a5f6 AM |
8817 | if (phdr_size == (bfd_size_type) -1) |
8818 | { | |
8819 | struct elf_segment_map *m; | |
8820 | ||
8821 | phdr_size = 0; | |
12bd6957 | 8822 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 8823 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 8824 | |
62d7a5f6 AM |
8825 | if (phdr_size == 0) |
8826 | phdr_size = get_program_header_size (abfd, info); | |
8827 | } | |
8ded5a0f | 8828 | |
12bd6957 | 8829 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
8830 | ret += phdr_size; |
8831 | } | |
8832 | ||
252b5132 RH |
8833 | return ret; |
8834 | } | |
8835 | ||
b34976b6 | 8836 | bfd_boolean |
217aa764 AM |
8837 | _bfd_elf_set_section_contents (bfd *abfd, |
8838 | sec_ptr section, | |
0f867abe | 8839 | const void *location, |
217aa764 AM |
8840 | file_ptr offset, |
8841 | bfd_size_type count) | |
252b5132 RH |
8842 | { |
8843 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 8844 | file_ptr pos; |
252b5132 RH |
8845 | |
8846 | if (! abfd->output_has_begun | |
217aa764 | 8847 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 8848 | return FALSE; |
252b5132 | 8849 | |
0ce398f1 L |
8850 | if (!count) |
8851 | return TRUE; | |
8852 | ||
252b5132 | 8853 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
8854 | if (hdr->sh_offset == (file_ptr) -1) |
8855 | { | |
8856 | /* We must compress this section. Write output to the buffer. */ | |
8857 | unsigned char *contents = hdr->contents; | |
8858 | if ((offset + count) > hdr->sh_size | |
8859 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
8860 | || contents == NULL) | |
8861 | abort (); | |
8862 | memcpy (contents + offset, location, count); | |
8863 | return TRUE; | |
8864 | } | |
dc810e39 AM |
8865 | pos = hdr->sh_offset + offset; |
8866 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
8867 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 8868 | return FALSE; |
252b5132 | 8869 | |
b34976b6 | 8870 | return TRUE; |
252b5132 RH |
8871 | } |
8872 | ||
f3185997 | 8873 | bfd_boolean |
217aa764 AM |
8874 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
8875 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
8876 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
8877 | { |
8878 | abort (); | |
f3185997 | 8879 | return FALSE; |
252b5132 RH |
8880 | } |
8881 | ||
252b5132 RH |
8882 | /* Try to convert a non-ELF reloc into an ELF one. */ |
8883 | ||
b34976b6 | 8884 | bfd_boolean |
217aa764 | 8885 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 8886 | { |
c044fabd | 8887 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
8888 | |
8889 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
8890 | { | |
8891 | bfd_reloc_code_real_type code; | |
8892 | reloc_howto_type *howto; | |
8893 | ||
8894 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 8895 | equivalent ELF reloc. */ |
252b5132 RH |
8896 | |
8897 | if (areloc->howto->pc_relative) | |
8898 | { | |
8899 | switch (areloc->howto->bitsize) | |
8900 | { | |
8901 | case 8: | |
8902 | code = BFD_RELOC_8_PCREL; | |
8903 | break; | |
8904 | case 12: | |
8905 | code = BFD_RELOC_12_PCREL; | |
8906 | break; | |
8907 | case 16: | |
8908 | code = BFD_RELOC_16_PCREL; | |
8909 | break; | |
8910 | case 24: | |
8911 | code = BFD_RELOC_24_PCREL; | |
8912 | break; | |
8913 | case 32: | |
8914 | code = BFD_RELOC_32_PCREL; | |
8915 | break; | |
8916 | case 64: | |
8917 | code = BFD_RELOC_64_PCREL; | |
8918 | break; | |
8919 | default: | |
8920 | goto fail; | |
8921 | } | |
8922 | ||
8923 | howto = bfd_reloc_type_lookup (abfd, code); | |
8924 | ||
8925 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
8926 | { | |
8927 | if (howto->pcrel_offset) | |
8928 | areloc->addend += areloc->address; | |
8929 | else | |
8930 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
8931 | } | |
8932 | } | |
8933 | else | |
8934 | { | |
8935 | switch (areloc->howto->bitsize) | |
8936 | { | |
8937 | case 8: | |
8938 | code = BFD_RELOC_8; | |
8939 | break; | |
8940 | case 14: | |
8941 | code = BFD_RELOC_14; | |
8942 | break; | |
8943 | case 16: | |
8944 | code = BFD_RELOC_16; | |
8945 | break; | |
8946 | case 26: | |
8947 | code = BFD_RELOC_26; | |
8948 | break; | |
8949 | case 32: | |
8950 | code = BFD_RELOC_32; | |
8951 | break; | |
8952 | case 64: | |
8953 | code = BFD_RELOC_64; | |
8954 | break; | |
8955 | default: | |
8956 | goto fail; | |
8957 | } | |
8958 | ||
8959 | howto = bfd_reloc_type_lookup (abfd, code); | |
8960 | } | |
8961 | ||
8962 | if (howto) | |
8963 | areloc->howto = howto; | |
8964 | else | |
8965 | goto fail; | |
8966 | } | |
8967 | ||
b34976b6 | 8968 | return TRUE; |
252b5132 RH |
8969 | |
8970 | fail: | |
0aa13fee AM |
8971 | /* xgettext:c-format */ |
8972 | _bfd_error_handler (_("%pB: %s unsupported"), | |
8973 | abfd, areloc->howto->name); | |
252b5132 | 8974 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8975 | return FALSE; |
252b5132 RH |
8976 | } |
8977 | ||
b34976b6 | 8978 | bfd_boolean |
217aa764 | 8979 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 8980 | { |
d9071b0c TG |
8981 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
8982 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 8983 | { |
c0355132 | 8984 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 8985 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 8986 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
8987 | } |
8988 | ||
8989 | return _bfd_generic_close_and_cleanup (abfd); | |
8990 | } | |
8991 | ||
8992 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
8993 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
8994 | range-checking to interfere. There is nothing else to do in processing | |
8995 | this reloc. */ | |
8996 | ||
8997 | bfd_reloc_status_type | |
217aa764 AM |
8998 | _bfd_elf_rel_vtable_reloc_fn |
8999 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9000 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9001 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9002 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9003 | { |
9004 | return bfd_reloc_ok; | |
9005 | } | |
252b5132 RH |
9006 | \f |
9007 | /* Elf core file support. Much of this only works on native | |
9008 | toolchains, since we rely on knowing the | |
9009 | machine-dependent procfs structure in order to pick | |
c044fabd | 9010 | out details about the corefile. */ |
252b5132 RH |
9011 | |
9012 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9013 | /* Needed for new procfs interface on sparc-solaris. */ |
9014 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9015 | # include <sys/procfs.h> |
9016 | #endif | |
9017 | ||
261b8d08 PA |
9018 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9019 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9020 | |
9021 | static int | |
217aa764 | 9022 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9023 | { |
261b8d08 PA |
9024 | int pid; |
9025 | ||
228e534f | 9026 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9027 | if (pid == 0) |
228e534f | 9028 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9029 | |
9030 | return pid; | |
252b5132 RH |
9031 | } |
9032 | ||
252b5132 RH |
9033 | /* If there isn't a section called NAME, make one, using |
9034 | data from SECT. Note, this function will generate a | |
9035 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9036 | overwrite it. */ |
252b5132 | 9037 | |
b34976b6 | 9038 | static bfd_boolean |
217aa764 | 9039 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9040 | { |
c044fabd | 9041 | asection *sect2; |
252b5132 RH |
9042 | |
9043 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9044 | return TRUE; |
252b5132 | 9045 | |
117ed4f8 | 9046 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9047 | if (sect2 == NULL) |
b34976b6 | 9048 | return FALSE; |
252b5132 | 9049 | |
eea6121a | 9050 | sect2->size = sect->size; |
252b5132 | 9051 | sect2->filepos = sect->filepos; |
252b5132 | 9052 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9053 | return TRUE; |
252b5132 RH |
9054 | } |
9055 | ||
bb0082d6 AM |
9056 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9057 | actually creates up to two pseudosections: | |
9058 | - For the single-threaded case, a section named NAME, unless | |
9059 | such a section already exists. | |
9060 | - For the multi-threaded case, a section named "NAME/PID", where | |
9061 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9062 | Both pseudosections have identical contents. */ |
b34976b6 | 9063 | bfd_boolean |
217aa764 AM |
9064 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9065 | char *name, | |
9066 | size_t size, | |
9067 | ufile_ptr filepos) | |
bb0082d6 AM |
9068 | { |
9069 | char buf[100]; | |
9070 | char *threaded_name; | |
d4c88bbb | 9071 | size_t len; |
bb0082d6 AM |
9072 | asection *sect; |
9073 | ||
9074 | /* Build the section name. */ | |
9075 | ||
9076 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9077 | len = strlen (buf) + 1; |
a50b1753 | 9078 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9079 | if (threaded_name == NULL) |
b34976b6 | 9080 | return FALSE; |
d4c88bbb | 9081 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9082 | |
117ed4f8 AM |
9083 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9084 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9085 | if (sect == NULL) |
b34976b6 | 9086 | return FALSE; |
eea6121a | 9087 | sect->size = size; |
bb0082d6 | 9088 | sect->filepos = filepos; |
bb0082d6 AM |
9089 | sect->alignment_power = 2; |
9090 | ||
936e320b | 9091 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9092 | } |
9093 | ||
252b5132 | 9094 | /* prstatus_t exists on: |
4a938328 | 9095 | solaris 2.5+ |
252b5132 RH |
9096 | linux 2.[01] + glibc |
9097 | unixware 4.2 | |
9098 | */ | |
9099 | ||
9100 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9101 | |
b34976b6 | 9102 | static bfd_boolean |
217aa764 | 9103 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9104 | { |
eea6121a | 9105 | size_t size; |
7ee38065 | 9106 | int offset; |
252b5132 | 9107 | |
4a938328 MS |
9108 | if (note->descsz == sizeof (prstatus_t)) |
9109 | { | |
9110 | prstatus_t prstat; | |
252b5132 | 9111 | |
eea6121a | 9112 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9113 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9114 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9115 | |
fa49d224 NC |
9116 | /* Do not overwrite the core signal if it |
9117 | has already been set by another thread. */ | |
228e534f AM |
9118 | if (elf_tdata (abfd)->core->signal == 0) |
9119 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9120 | if (elf_tdata (abfd)->core->pid == 0) | |
9121 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9122 | |
4a938328 MS |
9123 | /* pr_who exists on: |
9124 | solaris 2.5+ | |
9125 | unixware 4.2 | |
9126 | pr_who doesn't exist on: | |
9127 | linux 2.[01] | |
9128 | */ | |
252b5132 | 9129 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9130 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9131 | #else |
228e534f | 9132 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9133 | #endif |
4a938328 | 9134 | } |
7ee38065 | 9135 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9136 | else if (note->descsz == sizeof (prstatus32_t)) |
9137 | { | |
9138 | /* 64-bit host, 32-bit corefile */ | |
9139 | prstatus32_t prstat; | |
9140 | ||
eea6121a | 9141 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9142 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9143 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9144 | ||
fa49d224 NC |
9145 | /* Do not overwrite the core signal if it |
9146 | has already been set by another thread. */ | |
228e534f AM |
9147 | if (elf_tdata (abfd)->core->signal == 0) |
9148 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9149 | if (elf_tdata (abfd)->core->pid == 0) | |
9150 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9151 | |
9152 | /* pr_who exists on: | |
9153 | solaris 2.5+ | |
9154 | unixware 4.2 | |
9155 | pr_who doesn't exist on: | |
9156 | linux 2.[01] | |
9157 | */ | |
7ee38065 | 9158 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9159 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9160 | #else |
228e534f | 9161 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9162 | #endif |
9163 | } | |
7ee38065 | 9164 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9165 | else |
9166 | { | |
9167 | /* Fail - we don't know how to handle any other | |
9168 | note size (ie. data object type). */ | |
b34976b6 | 9169 | return TRUE; |
4a938328 | 9170 | } |
252b5132 | 9171 | |
bb0082d6 | 9172 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9173 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9174 | size, note->descpos + offset); |
252b5132 RH |
9175 | } |
9176 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9177 | ||
bb0082d6 | 9178 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9179 | static bfd_boolean |
217aa764 AM |
9180 | elfcore_make_note_pseudosection (bfd *abfd, |
9181 | char *name, | |
9182 | Elf_Internal_Note *note) | |
252b5132 | 9183 | { |
936e320b AM |
9184 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9185 | note->descsz, note->descpos); | |
252b5132 RH |
9186 | } |
9187 | ||
ff08c6bb JB |
9188 | /* There isn't a consistent prfpregset_t across platforms, |
9189 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9190 | data structure apart. */ |
9191 | ||
b34976b6 | 9192 | static bfd_boolean |
217aa764 | 9193 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9194 | { |
9195 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9196 | } | |
9197 | ||
ff08c6bb | 9198 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9199 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9200 | literally. */ |
c044fabd | 9201 | |
b34976b6 | 9202 | static bfd_boolean |
217aa764 | 9203 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9204 | { |
9205 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9206 | } | |
9207 | ||
4339cae0 L |
9208 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9209 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9210 | contents literally. */ | |
9211 | ||
9212 | static bfd_boolean | |
9213 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9214 | { | |
9215 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9216 | } | |
9217 | ||
97753bd5 AM |
9218 | static bfd_boolean |
9219 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9220 | { | |
9221 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9222 | } | |
9223 | ||
89eeb0bc LM |
9224 | static bfd_boolean |
9225 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9226 | { | |
9227 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9228 | } | |
97753bd5 | 9229 | |
0675e188 UW |
9230 | static bfd_boolean |
9231 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9232 | { | |
9233 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9234 | } | |
9235 | ||
d7eeb400 MS |
9236 | static bfd_boolean |
9237 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9238 | { | |
9239 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9240 | } | |
9241 | ||
9242 | static bfd_boolean | |
9243 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9244 | { | |
9245 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9246 | } | |
9247 | ||
9248 | static bfd_boolean | |
9249 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9250 | { | |
9251 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9252 | } | |
9253 | ||
9254 | static bfd_boolean | |
9255 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9256 | { | |
9257 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9258 | } | |
9259 | ||
9260 | static bfd_boolean | |
9261 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9262 | { | |
9263 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9264 | } | |
9265 | ||
355b81d9 UW |
9266 | static bfd_boolean |
9267 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9268 | { | |
9269 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9270 | } | |
9271 | ||
9272 | static bfd_boolean | |
9273 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9274 | { | |
9275 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9276 | } | |
9277 | ||
abb3f6cc NC |
9278 | static bfd_boolean |
9279 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9280 | { | |
9281 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9282 | } | |
9283 | ||
4ef9f41a AA |
9284 | static bfd_boolean |
9285 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9286 | { | |
9287 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9288 | } | |
9289 | ||
9290 | static bfd_boolean | |
9291 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9292 | { | |
9293 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9294 | } | |
9295 | ||
88ab90e8 AA |
9296 | static bfd_boolean |
9297 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9298 | { | |
9299 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9300 | } | |
9301 | ||
9302 | static bfd_boolean | |
9303 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9304 | { | |
9305 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9306 | } | |
9307 | ||
faa9a424 UW |
9308 | static bfd_boolean |
9309 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9310 | { | |
9311 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9312 | } | |
9313 | ||
652451f8 YZ |
9314 | static bfd_boolean |
9315 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9316 | { | |
9317 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9318 | } | |
9319 | ||
9320 | static bfd_boolean | |
9321 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9322 | { | |
9323 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9324 | } | |
9325 | ||
9326 | static bfd_boolean | |
9327 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9328 | { | |
9329 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9330 | } | |
9331 | ||
252b5132 | 9332 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9333 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9334 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9335 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9336 | #endif | |
252b5132 RH |
9337 | #endif |
9338 | ||
9339 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9340 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9341 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9342 | typedef psinfo32_t elfcore_psinfo32_t; |
9343 | #endif | |
252b5132 RH |
9344 | #endif |
9345 | ||
252b5132 RH |
9346 | /* return a malloc'ed copy of a string at START which is at |
9347 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9348 | the copy will always have a terminating '\0'. */ |
252b5132 | 9349 | |
936e320b | 9350 | char * |
217aa764 | 9351 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9352 | { |
dc810e39 | 9353 | char *dups; |
a50b1753 | 9354 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9355 | size_t len; |
252b5132 RH |
9356 | |
9357 | if (end == NULL) | |
9358 | len = max; | |
9359 | else | |
9360 | len = end - start; | |
9361 | ||
a50b1753 | 9362 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9363 | if (dups == NULL) |
252b5132 RH |
9364 | return NULL; |
9365 | ||
dc810e39 AM |
9366 | memcpy (dups, start, len); |
9367 | dups[len] = '\0'; | |
252b5132 | 9368 | |
dc810e39 | 9369 | return dups; |
252b5132 RH |
9370 | } |
9371 | ||
bb0082d6 | 9372 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9373 | static bfd_boolean |
217aa764 | 9374 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9375 | { |
4a938328 MS |
9376 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9377 | { | |
9378 | elfcore_psinfo_t psinfo; | |
252b5132 | 9379 | |
7ee38065 | 9380 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9381 | |
335e41d4 | 9382 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9383 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9384 | #endif |
228e534f | 9385 | elf_tdata (abfd)->core->program |
936e320b AM |
9386 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9387 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9388 | |
228e534f | 9389 | elf_tdata (abfd)->core->command |
936e320b AM |
9390 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9391 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9392 | } |
7ee38065 | 9393 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9394 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9395 | { | |
9396 | /* 64-bit host, 32-bit corefile */ | |
9397 | elfcore_psinfo32_t psinfo; | |
9398 | ||
7ee38065 | 9399 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9400 | |
335e41d4 | 9401 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9402 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9403 | #endif |
228e534f | 9404 | elf_tdata (abfd)->core->program |
936e320b AM |
9405 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9406 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9407 | |
228e534f | 9408 | elf_tdata (abfd)->core->command |
936e320b AM |
9409 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9410 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9411 | } |
9412 | #endif | |
9413 | ||
9414 | else | |
9415 | { | |
9416 | /* Fail - we don't know how to handle any other | |
9417 | note size (ie. data object type). */ | |
b34976b6 | 9418 | return TRUE; |
4a938328 | 9419 | } |
252b5132 RH |
9420 | |
9421 | /* Note that for some reason, a spurious space is tacked | |
9422 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9423 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9424 | |
9425 | { | |
228e534f | 9426 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9427 | int n = strlen (command); |
9428 | ||
9429 | if (0 < n && command[n - 1] == ' ') | |
9430 | command[n - 1] = '\0'; | |
9431 | } | |
9432 | ||
b34976b6 | 9433 | return TRUE; |
252b5132 RH |
9434 | } |
9435 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9436 | ||
252b5132 | 9437 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9438 | static bfd_boolean |
217aa764 | 9439 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9440 | { |
f572a39d AM |
9441 | if (note->descsz == sizeof (pstatus_t) |
9442 | #if defined (HAVE_PXSTATUS_T) | |
9443 | || note->descsz == sizeof (pxstatus_t) | |
9444 | #endif | |
9445 | ) | |
4a938328 MS |
9446 | { |
9447 | pstatus_t pstat; | |
252b5132 | 9448 | |
4a938328 | 9449 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9450 | |
228e534f | 9451 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9452 | } |
7ee38065 | 9453 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9454 | else if (note->descsz == sizeof (pstatus32_t)) |
9455 | { | |
9456 | /* 64-bit host, 32-bit corefile */ | |
9457 | pstatus32_t pstat; | |
252b5132 | 9458 | |
4a938328 | 9459 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9460 | |
228e534f | 9461 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9462 | } |
9463 | #endif | |
252b5132 RH |
9464 | /* Could grab some more details from the "representative" |
9465 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9466 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9467 | |
b34976b6 | 9468 | return TRUE; |
252b5132 RH |
9469 | } |
9470 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9471 | ||
252b5132 | 9472 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9473 | static bfd_boolean |
217aa764 | 9474 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9475 | { |
9476 | lwpstatus_t lwpstat; | |
9477 | char buf[100]; | |
c044fabd | 9478 | char *name; |
d4c88bbb | 9479 | size_t len; |
c044fabd | 9480 | asection *sect; |
252b5132 | 9481 | |
f572a39d AM |
9482 | if (note->descsz != sizeof (lwpstat) |
9483 | #if defined (HAVE_LWPXSTATUS_T) | |
9484 | && note->descsz != sizeof (lwpxstatus_t) | |
9485 | #endif | |
9486 | ) | |
b34976b6 | 9487 | return TRUE; |
252b5132 RH |
9488 | |
9489 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9490 | ||
228e534f | 9491 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9492 | /* Do not overwrite the core signal if it has already been set by |
9493 | another thread. */ | |
228e534f AM |
9494 | if (elf_tdata (abfd)->core->signal == 0) |
9495 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9496 | |
c044fabd | 9497 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9498 | |
9499 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9500 | len = strlen (buf) + 1; |
217aa764 | 9501 | name = bfd_alloc (abfd, len); |
252b5132 | 9502 | if (name == NULL) |
b34976b6 | 9503 | return FALSE; |
d4c88bbb | 9504 | memcpy (name, buf, len); |
252b5132 | 9505 | |
117ed4f8 | 9506 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9507 | if (sect == NULL) |
b34976b6 | 9508 | return FALSE; |
252b5132 RH |
9509 | |
9510 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9511 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9512 | sect->filepos = note->descpos |
9513 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9514 | #endif | |
9515 | ||
9516 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9517 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9518 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9519 | #endif | |
9520 | ||
252b5132 RH |
9521 | sect->alignment_power = 2; |
9522 | ||
9523 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9524 | return FALSE; |
252b5132 RH |
9525 | |
9526 | /* Make a ".reg2/999" section */ | |
9527 | ||
9528 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9529 | len = strlen (buf) + 1; |
217aa764 | 9530 | name = bfd_alloc (abfd, len); |
252b5132 | 9531 | if (name == NULL) |
b34976b6 | 9532 | return FALSE; |
d4c88bbb | 9533 | memcpy (name, buf, len); |
252b5132 | 9534 | |
117ed4f8 | 9535 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9536 | if (sect == NULL) |
b34976b6 | 9537 | return FALSE; |
252b5132 RH |
9538 | |
9539 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9540 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9541 | sect->filepos = note->descpos |
9542 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9543 | #endif | |
9544 | ||
9545 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9546 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9547 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9548 | #endif | |
9549 | ||
252b5132 RH |
9550 | sect->alignment_power = 2; |
9551 | ||
936e320b | 9552 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9553 | } |
9554 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9555 | ||
b34976b6 | 9556 | static bfd_boolean |
217aa764 | 9557 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9558 | { |
9559 | char buf[30]; | |
c044fabd | 9560 | char *name; |
d4c88bbb | 9561 | size_t len; |
c044fabd | 9562 | asection *sect; |
4a6636fb PA |
9563 | int type; |
9564 | int is_active_thread; | |
9565 | bfd_vma base_addr; | |
16e9c715 | 9566 | |
4a6636fb | 9567 | if (note->descsz < 728) |
b34976b6 | 9568 | return TRUE; |
16e9c715 | 9569 | |
4a6636fb PA |
9570 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9571 | return TRUE; | |
9572 | ||
9573 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9574 | |
4a6636fb | 9575 | switch (type) |
16e9c715 | 9576 | { |
4a6636fb | 9577 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9578 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9579 | /* process_info.pid */ |
228e534f | 9580 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9581 | /* process_info.signal */ |
228e534f | 9582 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9583 | break; |
16e9c715 | 9584 | |
4a6636fb | 9585 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9586 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9587 | /* thread_info.tid */ |
9588 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9589 | |
d4c88bbb | 9590 | len = strlen (buf) + 1; |
a50b1753 | 9591 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9592 | if (name == NULL) |
b34976b6 | 9593 | return FALSE; |
c044fabd | 9594 | |
d4c88bbb | 9595 | memcpy (name, buf, len); |
16e9c715 | 9596 | |
117ed4f8 | 9597 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 9598 | if (sect == NULL) |
b34976b6 | 9599 | return FALSE; |
c044fabd | 9600 | |
4a6636fb PA |
9601 | /* sizeof (thread_info.thread_context) */ |
9602 | sect->size = 716; | |
9603 | /* offsetof (thread_info.thread_context) */ | |
9604 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
9605 | sect->alignment_power = 2; |
9606 | ||
4a6636fb PA |
9607 | /* thread_info.is_active_thread */ |
9608 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
9609 | ||
9610 | if (is_active_thread) | |
16e9c715 | 9611 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 9612 | return FALSE; |
16e9c715 NC |
9613 | break; |
9614 | ||
4a6636fb | 9615 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 9616 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
9617 | /* module_info.base_address */ |
9618 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 9619 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 9620 | |
d4c88bbb | 9621 | len = strlen (buf) + 1; |
a50b1753 | 9622 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9623 | if (name == NULL) |
b34976b6 | 9624 | return FALSE; |
c044fabd | 9625 | |
d4c88bbb | 9626 | memcpy (name, buf, len); |
252b5132 | 9627 | |
117ed4f8 | 9628 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 9629 | |
16e9c715 | 9630 | if (sect == NULL) |
b34976b6 | 9631 | return FALSE; |
c044fabd | 9632 | |
eea6121a | 9633 | sect->size = note->descsz; |
16e9c715 | 9634 | sect->filepos = note->descpos; |
16e9c715 NC |
9635 | sect->alignment_power = 2; |
9636 | break; | |
9637 | ||
9638 | default: | |
b34976b6 | 9639 | return TRUE; |
16e9c715 NC |
9640 | } |
9641 | ||
b34976b6 | 9642 | return TRUE; |
16e9c715 | 9643 | } |
252b5132 | 9644 | |
b34976b6 | 9645 | static bfd_boolean |
217aa764 | 9646 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9647 | { |
9c5bfbb7 | 9648 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 9649 | |
252b5132 RH |
9650 | switch (note->type) |
9651 | { | |
9652 | default: | |
b34976b6 | 9653 | return TRUE; |
252b5132 | 9654 | |
252b5132 | 9655 | case NT_PRSTATUS: |
bb0082d6 AM |
9656 | if (bed->elf_backend_grok_prstatus) |
9657 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 9658 | return TRUE; |
bb0082d6 | 9659 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 9660 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 9661 | #else |
b34976b6 | 9662 | return TRUE; |
252b5132 RH |
9663 | #endif |
9664 | ||
9665 | #if defined (HAVE_PSTATUS_T) | |
9666 | case NT_PSTATUS: | |
9667 | return elfcore_grok_pstatus (abfd, note); | |
9668 | #endif | |
9669 | ||
9670 | #if defined (HAVE_LWPSTATUS_T) | |
9671 | case NT_LWPSTATUS: | |
9672 | return elfcore_grok_lwpstatus (abfd, note); | |
9673 | #endif | |
9674 | ||
9675 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
9676 | return elfcore_grok_prfpreg (abfd, note); | |
9677 | ||
c044fabd | 9678 | case NT_WIN32PSTATUS: |
16e9c715 | 9679 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 9680 | |
c044fabd | 9681 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
9682 | if (note->namesz == 6 |
9683 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
9684 | return elfcore_grok_prxfpreg (abfd, note); |
9685 | else | |
b34976b6 | 9686 | return TRUE; |
ff08c6bb | 9687 | |
4339cae0 L |
9688 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
9689 | if (note->namesz == 6 | |
9690 | && strcmp (note->namedata, "LINUX") == 0) | |
9691 | return elfcore_grok_xstatereg (abfd, note); | |
9692 | else | |
9693 | return TRUE; | |
9694 | ||
97753bd5 AM |
9695 | case NT_PPC_VMX: |
9696 | if (note->namesz == 6 | |
9697 | && strcmp (note->namedata, "LINUX") == 0) | |
9698 | return elfcore_grok_ppc_vmx (abfd, note); | |
9699 | else | |
9700 | return TRUE; | |
9701 | ||
89eeb0bc LM |
9702 | case NT_PPC_VSX: |
9703 | if (note->namesz == 6 | |
07d6d2b8 AM |
9704 | && strcmp (note->namedata, "LINUX") == 0) |
9705 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 9706 | else |
07d6d2b8 | 9707 | return TRUE; |
89eeb0bc | 9708 | |
0675e188 UW |
9709 | case NT_S390_HIGH_GPRS: |
9710 | if (note->namesz == 6 | |
07d6d2b8 AM |
9711 | && strcmp (note->namedata, "LINUX") == 0) |
9712 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 9713 | else |
07d6d2b8 | 9714 | return TRUE; |
0675e188 | 9715 | |
d7eeb400 MS |
9716 | case NT_S390_TIMER: |
9717 | if (note->namesz == 6 | |
07d6d2b8 AM |
9718 | && strcmp (note->namedata, "LINUX") == 0) |
9719 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 9720 | else |
07d6d2b8 | 9721 | return TRUE; |
d7eeb400 MS |
9722 | |
9723 | case NT_S390_TODCMP: | |
9724 | if (note->namesz == 6 | |
07d6d2b8 AM |
9725 | && strcmp (note->namedata, "LINUX") == 0) |
9726 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 9727 | else |
07d6d2b8 | 9728 | return TRUE; |
d7eeb400 MS |
9729 | |
9730 | case NT_S390_TODPREG: | |
9731 | if (note->namesz == 6 | |
07d6d2b8 AM |
9732 | && strcmp (note->namedata, "LINUX") == 0) |
9733 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 9734 | else |
07d6d2b8 | 9735 | return TRUE; |
d7eeb400 MS |
9736 | |
9737 | case NT_S390_CTRS: | |
9738 | if (note->namesz == 6 | |
07d6d2b8 AM |
9739 | && strcmp (note->namedata, "LINUX") == 0) |
9740 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 9741 | else |
07d6d2b8 | 9742 | return TRUE; |
d7eeb400 MS |
9743 | |
9744 | case NT_S390_PREFIX: | |
9745 | if (note->namesz == 6 | |
07d6d2b8 AM |
9746 | && strcmp (note->namedata, "LINUX") == 0) |
9747 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 9748 | else |
07d6d2b8 | 9749 | return TRUE; |
d7eeb400 | 9750 | |
355b81d9 UW |
9751 | case NT_S390_LAST_BREAK: |
9752 | if (note->namesz == 6 | |
07d6d2b8 AM |
9753 | && strcmp (note->namedata, "LINUX") == 0) |
9754 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 9755 | else |
07d6d2b8 | 9756 | return TRUE; |
355b81d9 UW |
9757 | |
9758 | case NT_S390_SYSTEM_CALL: | |
9759 | if (note->namesz == 6 | |
07d6d2b8 AM |
9760 | && strcmp (note->namedata, "LINUX") == 0) |
9761 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 9762 | else |
07d6d2b8 | 9763 | return TRUE; |
355b81d9 | 9764 | |
abb3f6cc NC |
9765 | case NT_S390_TDB: |
9766 | if (note->namesz == 6 | |
07d6d2b8 AM |
9767 | && strcmp (note->namedata, "LINUX") == 0) |
9768 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 9769 | else |
07d6d2b8 | 9770 | return TRUE; |
abb3f6cc | 9771 | |
4ef9f41a AA |
9772 | case NT_S390_VXRS_LOW: |
9773 | if (note->namesz == 6 | |
9774 | && strcmp (note->namedata, "LINUX") == 0) | |
9775 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
9776 | else | |
9777 | return TRUE; | |
9778 | ||
9779 | case NT_S390_VXRS_HIGH: | |
9780 | if (note->namesz == 6 | |
9781 | && strcmp (note->namedata, "LINUX") == 0) | |
9782 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
9783 | else | |
9784 | return TRUE; | |
9785 | ||
88ab90e8 AA |
9786 | case NT_S390_GS_CB: |
9787 | if (note->namesz == 6 | |
9788 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 9789 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
9790 | else |
9791 | return TRUE; | |
9792 | ||
9793 | case NT_S390_GS_BC: | |
9794 | if (note->namesz == 6 | |
9795 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 9796 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
9797 | else |
9798 | return TRUE; | |
9799 | ||
faa9a424 UW |
9800 | case NT_ARM_VFP: |
9801 | if (note->namesz == 6 | |
9802 | && strcmp (note->namedata, "LINUX") == 0) | |
9803 | return elfcore_grok_arm_vfp (abfd, note); | |
9804 | else | |
9805 | return TRUE; | |
9806 | ||
652451f8 YZ |
9807 | case NT_ARM_TLS: |
9808 | if (note->namesz == 6 | |
9809 | && strcmp (note->namedata, "LINUX") == 0) | |
9810 | return elfcore_grok_aarch_tls (abfd, note); | |
9811 | else | |
9812 | return TRUE; | |
9813 | ||
9814 | case NT_ARM_HW_BREAK: | |
9815 | if (note->namesz == 6 | |
9816 | && strcmp (note->namedata, "LINUX") == 0) | |
9817 | return elfcore_grok_aarch_hw_break (abfd, note); | |
9818 | else | |
9819 | return TRUE; | |
9820 | ||
9821 | case NT_ARM_HW_WATCH: | |
9822 | if (note->namesz == 6 | |
9823 | && strcmp (note->namedata, "LINUX") == 0) | |
9824 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
9825 | else | |
9826 | return TRUE; | |
9827 | ||
252b5132 RH |
9828 | case NT_PRPSINFO: |
9829 | case NT_PSINFO: | |
bb0082d6 AM |
9830 | if (bed->elf_backend_grok_psinfo) |
9831 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 9832 | return TRUE; |
bb0082d6 | 9833 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 9834 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 9835 | #else |
b34976b6 | 9836 | return TRUE; |
252b5132 | 9837 | #endif |
3333a7c3 RM |
9838 | |
9839 | case NT_AUXV: | |
9840 | { | |
117ed4f8 AM |
9841 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
9842 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
9843 | |
9844 | if (sect == NULL) | |
9845 | return FALSE; | |
eea6121a | 9846 | sect->size = note->descsz; |
3333a7c3 | 9847 | sect->filepos = note->descpos; |
3333a7c3 RM |
9848 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
9849 | ||
9850 | return TRUE; | |
9851 | } | |
9015683b | 9852 | |
451b7c33 TT |
9853 | case NT_FILE: |
9854 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
9855 | note); | |
9856 | ||
9015683b TT |
9857 | case NT_SIGINFO: |
9858 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
9859 | note); | |
5b2c414d | 9860 | |
252b5132 RH |
9861 | } |
9862 | } | |
9863 | ||
718175fa JK |
9864 | static bfd_boolean |
9865 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
9866 | { | |
c74f7d1c | 9867 | struct bfd_build_id* build_id; |
30e8ee25 AM |
9868 | |
9869 | if (note->descsz == 0) | |
9870 | return FALSE; | |
9871 | ||
c74f7d1c JT |
9872 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
9873 | if (build_id == NULL) | |
718175fa JK |
9874 | return FALSE; |
9875 | ||
c74f7d1c JT |
9876 | build_id->size = note->descsz; |
9877 | memcpy (build_id->data, note->descdata, note->descsz); | |
9878 | abfd->build_id = build_id; | |
718175fa JK |
9879 | |
9880 | return TRUE; | |
9881 | } | |
9882 | ||
9883 | static bfd_boolean | |
9884 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
9885 | { | |
9886 | switch (note->type) | |
9887 | { | |
9888 | default: | |
9889 | return TRUE; | |
9890 | ||
46bed679 L |
9891 | case NT_GNU_PROPERTY_TYPE_0: |
9892 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
9893 | ||
718175fa JK |
9894 | case NT_GNU_BUILD_ID: |
9895 | return elfobj_grok_gnu_build_id (abfd, note); | |
9896 | } | |
9897 | } | |
9898 | ||
e21e5835 NC |
9899 | static bfd_boolean |
9900 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
9901 | { | |
9902 | struct sdt_note *cur = | |
9903 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
9904 | + note->descsz); | |
9905 | ||
9906 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
9907 | cur->size = (bfd_size_type) note->descsz; | |
9908 | memcpy (cur->data, note->descdata, note->descsz); | |
9909 | ||
9910 | elf_tdata (abfd)->sdt_note_head = cur; | |
9911 | ||
9912 | return TRUE; | |
9913 | } | |
9914 | ||
9915 | static bfd_boolean | |
9916 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
9917 | { | |
9918 | switch (note->type) | |
9919 | { | |
9920 | case NT_STAPSDT: | |
9921 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
9922 | ||
9923 | default: | |
9924 | return TRUE; | |
9925 | } | |
9926 | } | |
9927 | ||
aa1ed4a9 JB |
9928 | static bfd_boolean |
9929 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
9930 | { | |
9931 | size_t offset; | |
9932 | ||
b5430a3c | 9933 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 9934 | { |
b5430a3c | 9935 | case ELFCLASS32: |
0064d223 JB |
9936 | if (note->descsz < 108) |
9937 | return FALSE; | |
aa1ed4a9 JB |
9938 | break; |
9939 | ||
b5430a3c | 9940 | case ELFCLASS64: |
0064d223 JB |
9941 | if (note->descsz < 120) |
9942 | return FALSE; | |
aa1ed4a9 JB |
9943 | break; |
9944 | ||
9945 | default: | |
9946 | return FALSE; | |
9947 | } | |
9948 | ||
0064d223 JB |
9949 | /* Check for version 1 in pr_version. */ |
9950 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
9951 | return FALSE; | |
80a04378 | 9952 | |
0064d223 JB |
9953 | offset = 4; |
9954 | ||
9955 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 9956 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
9957 | offset += 4; |
9958 | else | |
9959 | { | |
9960 | offset += 4; /* Padding before pr_psinfosz. */ | |
9961 | offset += 8; | |
9962 | } | |
9963 | ||
aa1ed4a9 JB |
9964 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
9965 | elf_tdata (abfd)->core->program | |
9966 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
9967 | offset += 17; | |
9968 | ||
9969 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
9970 | elf_tdata (abfd)->core->command | |
9971 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
9972 | offset += 81; |
9973 | ||
9974 | /* Padding before pr_pid. */ | |
9975 | offset += 2; | |
9976 | ||
9977 | /* The pr_pid field was added in version "1a". */ | |
9978 | if (note->descsz < offset + 4) | |
9979 | return TRUE; | |
9980 | ||
9981 | elf_tdata (abfd)->core->pid | |
9982 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
9983 | |
9984 | return TRUE; | |
9985 | } | |
9986 | ||
9987 | static bfd_boolean | |
9988 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
9989 | { | |
9990 | size_t offset; | |
9991 | size_t size; | |
24d3e51b | 9992 | size_t min_size; |
aa1ed4a9 | 9993 | |
24d3e51b NC |
9994 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
9995 | Also compute minimum size of this note. */ | |
b5430a3c | 9996 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 9997 | { |
b5430a3c | 9998 | case ELFCLASS32: |
24d3e51b NC |
9999 | offset = 4 + 4; |
10000 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10001 | break; |
10002 | ||
b5430a3c | 10003 | case ELFCLASS64: |
24d3e51b NC |
10004 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10005 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10006 | break; |
10007 | ||
10008 | default: | |
10009 | return FALSE; | |
10010 | } | |
10011 | ||
24d3e51b NC |
10012 | if (note->descsz < min_size) |
10013 | return FALSE; | |
10014 | ||
10015 | /* Check for version 1 in pr_version. */ | |
10016 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10017 | return FALSE; | |
aa1ed4a9 | 10018 | |
24d3e51b NC |
10019 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10020 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10021 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10022 | { |
10023 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10024 | offset += 4 * 2; | |
10025 | } | |
b5430a3c | 10026 | else |
24d3e51b NC |
10027 | { |
10028 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10029 | offset += 8 * 2; | |
10030 | } | |
aa1ed4a9 | 10031 | |
24d3e51b | 10032 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10033 | offset += 4; |
10034 | ||
24d3e51b | 10035 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10036 | if (elf_tdata (abfd)->core->signal == 0) |
10037 | elf_tdata (abfd)->core->signal | |
10038 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10039 | offset += 4; | |
10040 | ||
24d3e51b | 10041 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10042 | elf_tdata (abfd)->core->lwpid |
10043 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10044 | offset += 4; | |
10045 | ||
24d3e51b | 10046 | /* Padding before pr_reg. */ |
b5430a3c | 10047 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10048 | offset += 4; |
10049 | ||
24d3e51b NC |
10050 | /* Make sure that there is enough data remaining in the note. */ |
10051 | if ((note->descsz - offset) < size) | |
10052 | return FALSE; | |
10053 | ||
aa1ed4a9 JB |
10054 | /* Make a ".reg/999" section and a ".reg" section. */ |
10055 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10056 | size, note->descpos + offset); | |
10057 | } | |
10058 | ||
10059 | static bfd_boolean | |
10060 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10061 | { | |
544c67cd JB |
10062 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10063 | ||
aa1ed4a9 JB |
10064 | switch (note->type) |
10065 | { | |
10066 | case NT_PRSTATUS: | |
544c67cd JB |
10067 | if (bed->elf_backend_grok_freebsd_prstatus) |
10068 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10069 | return TRUE; | |
aa1ed4a9 JB |
10070 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10071 | ||
10072 | case NT_FPREGSET: | |
10073 | return elfcore_grok_prfpreg (abfd, note); | |
10074 | ||
10075 | case NT_PRPSINFO: | |
10076 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10077 | ||
10078 | case NT_FREEBSD_THRMISC: | |
10079 | if (note->namesz == 8) | |
10080 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10081 | else | |
10082 | return TRUE; | |
10083 | ||
ddb2bbcf JB |
10084 | case NT_FREEBSD_PROCSTAT_PROC: |
10085 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10086 | note); | |
10087 | ||
10088 | case NT_FREEBSD_PROCSTAT_FILES: | |
10089 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10090 | note); | |
10091 | ||
10092 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10093 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10094 | note); | |
10095 | ||
3350c5f5 JB |
10096 | case NT_FREEBSD_PROCSTAT_AUXV: |
10097 | { | |
10098 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10099 | SEC_HAS_CONTENTS); | |
10100 | ||
10101 | if (sect == NULL) | |
10102 | return FALSE; | |
10103 | sect->size = note->descsz - 4; | |
10104 | sect->filepos = note->descpos + 4; | |
10105 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10106 | ||
10107 | return TRUE; | |
10108 | } | |
10109 | ||
aa1ed4a9 JB |
10110 | case NT_X86_XSTATE: |
10111 | if (note->namesz == 8) | |
10112 | return elfcore_grok_xstatereg (abfd, note); | |
10113 | else | |
10114 | return TRUE; | |
10115 | ||
e6f3b9c3 JB |
10116 | case NT_FREEBSD_PTLWPINFO: |
10117 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10118 | note); | |
10119 | ||
6d5be5d6 JB |
10120 | case NT_ARM_VFP: |
10121 | return elfcore_grok_arm_vfp (abfd, note); | |
10122 | ||
aa1ed4a9 JB |
10123 | default: |
10124 | return TRUE; | |
10125 | } | |
10126 | } | |
10127 | ||
b34976b6 | 10128 | static bfd_boolean |
217aa764 | 10129 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10130 | { |
10131 | char *cp; | |
10132 | ||
10133 | cp = strchr (note->namedata, '@'); | |
10134 | if (cp != NULL) | |
10135 | { | |
d2b64500 | 10136 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10137 | return TRUE; |
50b2bdb7 | 10138 | } |
b34976b6 | 10139 | return FALSE; |
50b2bdb7 AM |
10140 | } |
10141 | ||
b34976b6 | 10142 | static bfd_boolean |
217aa764 | 10143 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10144 | { |
80a04378 NC |
10145 | if (note->descsz <= 0x7c + 31) |
10146 | return FALSE; | |
10147 | ||
50b2bdb7 | 10148 | /* Signal number at offset 0x08. */ |
228e534f | 10149 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10150 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10151 | ||
10152 | /* Process ID at offset 0x50. */ | |
228e534f | 10153 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10154 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10155 | ||
10156 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10157 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10158 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10159 | ||
7720ba9f MK |
10160 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10161 | note); | |
50b2bdb7 AM |
10162 | } |
10163 | ||
b34976b6 | 10164 | static bfd_boolean |
217aa764 | 10165 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10166 | { |
10167 | int lwp; | |
10168 | ||
10169 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10170 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10171 | |
b4db1224 | 10172 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
10173 | { |
10174 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
10175 | find this note before any of the others, which is fine, |
10176 | since the kernel writes this note out first when it | |
10177 | creates a core file. */ | |
47d9a591 | 10178 | |
50b2bdb7 AM |
10179 | return elfcore_grok_netbsd_procinfo (abfd, note); |
10180 | } | |
10181 | ||
b4db1224 JT |
10182 | /* As of Jan 2002 there are no other machine-independent notes |
10183 | defined for NetBSD core files. If the note type is less | |
10184 | than the start of the machine-dependent note types, we don't | |
10185 | understand it. */ | |
47d9a591 | 10186 | |
b4db1224 | 10187 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10188 | return TRUE; |
50b2bdb7 AM |
10189 | |
10190 | ||
10191 | switch (bfd_get_arch (abfd)) | |
10192 | { | |
08a40648 AM |
10193 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10194 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10195 | |
10196 | case bfd_arch_alpha: | |
10197 | case bfd_arch_sparc: | |
10198 | switch (note->type) | |
08a40648 AM |
10199 | { |
10200 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10201 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10202 | |
08a40648 AM |
10203 | case NT_NETBSDCORE_FIRSTMACH+2: |
10204 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10205 | |
08a40648 AM |
10206 | default: |
10207 | return TRUE; | |
10208 | } | |
50b2bdb7 | 10209 | |
08a40648 AM |
10210 | /* On all other arch's, PT_GETREGS == mach+1 and |
10211 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10212 | |
10213 | default: | |
10214 | switch (note->type) | |
08a40648 AM |
10215 | { |
10216 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10217 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10218 | |
08a40648 AM |
10219 | case NT_NETBSDCORE_FIRSTMACH+3: |
10220 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10221 | |
08a40648 AM |
10222 | default: |
10223 | return TRUE; | |
10224 | } | |
50b2bdb7 AM |
10225 | } |
10226 | /* NOTREACHED */ | |
10227 | } | |
10228 | ||
67cc5033 MK |
10229 | static bfd_boolean |
10230 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10231 | { | |
80a04378 NC |
10232 | if (note->descsz <= 0x48 + 31) |
10233 | return FALSE; | |
10234 | ||
67cc5033 | 10235 | /* Signal number at offset 0x08. */ |
228e534f | 10236 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10237 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10238 | ||
10239 | /* Process ID at offset 0x20. */ | |
228e534f | 10240 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10241 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10242 | ||
10243 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10244 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10245 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10246 | ||
10247 | return TRUE; | |
10248 | } | |
10249 | ||
10250 | static bfd_boolean | |
10251 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10252 | { | |
10253 | if (note->type == NT_OPENBSD_PROCINFO) | |
10254 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10255 | ||
10256 | if (note->type == NT_OPENBSD_REGS) | |
10257 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10258 | ||
10259 | if (note->type == NT_OPENBSD_FPREGS) | |
10260 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10261 | ||
10262 | if (note->type == NT_OPENBSD_XFPREGS) | |
10263 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10264 | ||
10265 | if (note->type == NT_OPENBSD_AUXV) | |
10266 | { | |
10267 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10268 | SEC_HAS_CONTENTS); | |
10269 | ||
10270 | if (sect == NULL) | |
10271 | return FALSE; | |
10272 | sect->size = note->descsz; | |
10273 | sect->filepos = note->descpos; | |
10274 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10275 | ||
10276 | return TRUE; | |
10277 | } | |
10278 | ||
10279 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10280 | { | |
10281 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10282 | SEC_HAS_CONTENTS); | |
10283 | ||
10284 | if (sect == NULL) | |
10285 | return FALSE; | |
10286 | sect->size = note->descsz; | |
10287 | sect->filepos = note->descpos; | |
10288 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10289 | ||
10290 | return TRUE; | |
10291 | } | |
10292 | ||
10293 | return TRUE; | |
10294 | } | |
10295 | ||
07c6e936 | 10296 | static bfd_boolean |
d3fd4074 | 10297 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10298 | { |
10299 | void *ddata = note->descdata; | |
10300 | char buf[100]; | |
10301 | char *name; | |
10302 | asection *sect; | |
f8843e87 AM |
10303 | short sig; |
10304 | unsigned flags; | |
07c6e936 | 10305 | |
80a04378 NC |
10306 | if (note->descsz < 16) |
10307 | return FALSE; | |
10308 | ||
07c6e936 | 10309 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10310 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10311 | |
f8843e87 AM |
10312 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10313 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10314 | ||
10315 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10316 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10317 | |
10318 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10319 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10320 | { | |
228e534f AM |
10321 | elf_tdata (abfd)->core->signal = sig; |
10322 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10323 | } |
07c6e936 | 10324 | |
f8843e87 AM |
10325 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10326 | do not come from signals so we make sure we set the current | |
10327 | thread just in case. */ | |
10328 | if (flags & 0x00000080) | |
228e534f | 10329 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10330 | |
10331 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10332 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10333 | |
a50b1753 | 10334 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10335 | if (name == NULL) |
10336 | return FALSE; | |
10337 | strcpy (name, buf); | |
10338 | ||
117ed4f8 | 10339 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10340 | if (sect == NULL) |
10341 | return FALSE; | |
10342 | ||
07d6d2b8 AM |
10343 | sect->size = note->descsz; |
10344 | sect->filepos = note->descpos; | |
07c6e936 NC |
10345 | sect->alignment_power = 2; |
10346 | ||
10347 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10348 | } | |
10349 | ||
10350 | static bfd_boolean | |
d69f560c KW |
10351 | elfcore_grok_nto_regs (bfd *abfd, |
10352 | Elf_Internal_Note *note, | |
d3fd4074 | 10353 | long tid, |
d69f560c | 10354 | char *base) |
07c6e936 NC |
10355 | { |
10356 | char buf[100]; | |
10357 | char *name; | |
10358 | asection *sect; | |
10359 | ||
d69f560c | 10360 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10361 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10362 | |
a50b1753 | 10363 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10364 | if (name == NULL) |
10365 | return FALSE; | |
10366 | strcpy (name, buf); | |
10367 | ||
117ed4f8 | 10368 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10369 | if (sect == NULL) |
10370 | return FALSE; | |
10371 | ||
07d6d2b8 AM |
10372 | sect->size = note->descsz; |
10373 | sect->filepos = note->descpos; | |
07c6e936 NC |
10374 | sect->alignment_power = 2; |
10375 | ||
f8843e87 | 10376 | /* This is the current thread. */ |
228e534f | 10377 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10378 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10379 | |
10380 | return TRUE; | |
07c6e936 NC |
10381 | } |
10382 | ||
10383 | #define BFD_QNT_CORE_INFO 7 | |
10384 | #define BFD_QNT_CORE_STATUS 8 | |
10385 | #define BFD_QNT_CORE_GREG 9 | |
10386 | #define BFD_QNT_CORE_FPREG 10 | |
10387 | ||
10388 | static bfd_boolean | |
217aa764 | 10389 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10390 | { |
10391 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10392 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10393 | function. */ |
d3fd4074 | 10394 | static long tid = 1; |
07c6e936 NC |
10395 | |
10396 | switch (note->type) | |
10397 | { | |
d69f560c KW |
10398 | case BFD_QNT_CORE_INFO: |
10399 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10400 | case BFD_QNT_CORE_STATUS: | |
10401 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10402 | case BFD_QNT_CORE_GREG: | |
10403 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10404 | case BFD_QNT_CORE_FPREG: | |
10405 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10406 | default: | |
10407 | return TRUE; | |
07c6e936 NC |
10408 | } |
10409 | } | |
10410 | ||
b15fa79e AM |
10411 | static bfd_boolean |
10412 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10413 | { | |
10414 | char *name; | |
10415 | asection *sect; | |
10416 | size_t len; | |
10417 | ||
10418 | /* Use note name as section name. */ | |
10419 | len = note->namesz; | |
a50b1753 | 10420 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10421 | if (name == NULL) |
10422 | return FALSE; | |
10423 | memcpy (name, note->namedata, len); | |
10424 | name[len - 1] = '\0'; | |
10425 | ||
10426 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10427 | if (sect == NULL) | |
10428 | return FALSE; | |
10429 | ||
07d6d2b8 AM |
10430 | sect->size = note->descsz; |
10431 | sect->filepos = note->descpos; | |
b15fa79e AM |
10432 | sect->alignment_power = 1; |
10433 | ||
10434 | return TRUE; | |
10435 | } | |
10436 | ||
7c76fa91 MS |
10437 | /* Function: elfcore_write_note |
10438 | ||
47d9a591 | 10439 | Inputs: |
a39f3346 | 10440 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10441 | name of note |
10442 | type of note | |
10443 | data for note | |
10444 | size of data for note | |
10445 | ||
a39f3346 AM |
10446 | Writes note to end of buffer. ELF64 notes are written exactly as |
10447 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10448 | that they ought to have 8-byte namesz and descsz field, and have | |
10449 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10450 | ||
7c76fa91 | 10451 | Return: |
a39f3346 | 10452 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10453 | |
10454 | char * | |
a39f3346 | 10455 | elfcore_write_note (bfd *abfd, |
217aa764 | 10456 | char *buf, |
a39f3346 | 10457 | int *bufsiz, |
217aa764 | 10458 | const char *name, |
a39f3346 | 10459 | int type, |
217aa764 | 10460 | const void *input, |
a39f3346 | 10461 | int size) |
7c76fa91 MS |
10462 | { |
10463 | Elf_External_Note *xnp; | |
d4c88bbb | 10464 | size_t namesz; |
d4c88bbb | 10465 | size_t newspace; |
a39f3346 | 10466 | char *dest; |
7c76fa91 | 10467 | |
d4c88bbb | 10468 | namesz = 0; |
d4c88bbb | 10469 | if (name != NULL) |
a39f3346 | 10470 | namesz = strlen (name) + 1; |
d4c88bbb | 10471 | |
a39f3346 | 10472 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10473 | |
a50b1753 | 10474 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10475 | if (buf == NULL) |
10476 | return buf; | |
a39f3346 | 10477 | dest = buf + *bufsiz; |
7c76fa91 MS |
10478 | *bufsiz += newspace; |
10479 | xnp = (Elf_External_Note *) dest; | |
10480 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10481 | H_PUT_32 (abfd, size, xnp->descsz); | |
10482 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10483 | dest = xnp->name; |
10484 | if (name != NULL) | |
10485 | { | |
10486 | memcpy (dest, name, namesz); | |
10487 | dest += namesz; | |
a39f3346 | 10488 | while (namesz & 3) |
d4c88bbb AM |
10489 | { |
10490 | *dest++ = '\0'; | |
a39f3346 | 10491 | ++namesz; |
d4c88bbb AM |
10492 | } |
10493 | } | |
10494 | memcpy (dest, input, size); | |
a39f3346 AM |
10495 | dest += size; |
10496 | while (size & 3) | |
10497 | { | |
10498 | *dest++ = '\0'; | |
10499 | ++size; | |
10500 | } | |
10501 | return buf; | |
7c76fa91 MS |
10502 | } |
10503 | ||
602f1657 AM |
10504 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
10505 | possible string truncation. The "truncation" is not a bug. We | |
10506 | have an external representation of structs with fields that are not | |
10507 | necessarily NULL terminated and corresponding internal | |
10508 | representation fields that are one larger so that they can always | |
10509 | be NULL terminated. | |
10510 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
10511 | diagnostics inside functions, giving a hard error if you try to use | |
10512 | the finer control available with later versions. | |
10513 | gcc prior to 4.2 warns about diagnostic push and pop. | |
10514 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
10515 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
10516 | (*) Depending on your system header files! */ | |
d99b4b92 | 10517 | #if GCC_VERSION >= 8000 |
602f1657 AM |
10518 | # pragma GCC diagnostic push |
10519 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 10520 | #endif |
7c76fa91 | 10521 | char * |
217aa764 AM |
10522 | elfcore_write_prpsinfo (bfd *abfd, |
10523 | char *buf, | |
10524 | int *bufsiz, | |
10525 | const char *fname, | |
10526 | const char *psargs) | |
7c76fa91 | 10527 | { |
183e98be AM |
10528 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10529 | ||
10530 | if (bed->elf_backend_write_core_note != NULL) | |
10531 | { | |
10532 | char *ret; | |
10533 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10534 | NT_PRPSINFO, fname, psargs); | |
10535 | if (ret != NULL) | |
10536 | return ret; | |
10537 | } | |
7c76fa91 | 10538 | |
1f20dca5 | 10539 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 10540 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
10541 | if (bed->s->elfclass == ELFCLASS32) |
10542 | { | |
602f1657 | 10543 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
10544 | psinfo32_t data; |
10545 | int note_type = NT_PSINFO; | |
602f1657 | 10546 | # else |
183e98be AM |
10547 | prpsinfo32_t data; |
10548 | int note_type = NT_PRPSINFO; | |
602f1657 | 10549 | # endif |
183e98be AM |
10550 | |
10551 | memset (&data, 0, sizeof (data)); | |
10552 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10553 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10554 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10555 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
10556 | } |
10557 | else | |
602f1657 | 10558 | # endif |
183e98be | 10559 | { |
602f1657 | 10560 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
10561 | psinfo_t data; |
10562 | int note_type = NT_PSINFO; | |
602f1657 | 10563 | # else |
183e98be AM |
10564 | prpsinfo_t data; |
10565 | int note_type = NT_PRPSINFO; | |
602f1657 | 10566 | # endif |
7c76fa91 | 10567 | |
183e98be AM |
10568 | memset (&data, 0, sizeof (data)); |
10569 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10570 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10571 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10572 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 10573 | } |
7c76fa91 MS |
10574 | #endif /* PSINFO_T or PRPSINFO_T */ |
10575 | ||
1f20dca5 UW |
10576 | free (buf); |
10577 | return NULL; | |
10578 | } | |
d99b4b92 | 10579 | #if GCC_VERSION >= 8000 |
602f1657 | 10580 | # pragma GCC diagnostic pop |
d99b4b92 | 10581 | #endif |
1f20dca5 | 10582 | |
70a38d42 SDJ |
10583 | char * |
10584 | elfcore_write_linux_prpsinfo32 | |
10585 | (bfd *abfd, char *buf, int *bufsiz, | |
10586 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10587 | { | |
a2f63b2e MR |
10588 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
10589 | { | |
10590 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
10591 | ||
10592 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
10593 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10594 | &data, sizeof (data)); | |
10595 | } | |
10596 | else | |
10597 | { | |
10598 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 10599 | |
a2f63b2e MR |
10600 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
10601 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10602 | &data, sizeof (data)); | |
10603 | } | |
70a38d42 SDJ |
10604 | } |
10605 | ||
10606 | char * | |
10607 | elfcore_write_linux_prpsinfo64 | |
10608 | (bfd *abfd, char *buf, int *bufsiz, | |
10609 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10610 | { | |
3c9a7b0d MR |
10611 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
10612 | { | |
10613 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
10614 | ||
10615 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
10616 | return elfcore_write_note (abfd, buf, bufsiz, | |
10617 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10618 | } | |
10619 | else | |
10620 | { | |
10621 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 10622 | |
3c9a7b0d MR |
10623 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
10624 | return elfcore_write_note (abfd, buf, bufsiz, | |
10625 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10626 | } | |
70a38d42 SDJ |
10627 | } |
10628 | ||
7c76fa91 | 10629 | char * |
217aa764 AM |
10630 | elfcore_write_prstatus (bfd *abfd, |
10631 | char *buf, | |
10632 | int *bufsiz, | |
10633 | long pid, | |
10634 | int cursig, | |
10635 | const void *gregs) | |
7c76fa91 | 10636 | { |
183e98be | 10637 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 10638 | |
183e98be AM |
10639 | if (bed->elf_backend_write_core_note != NULL) |
10640 | { | |
10641 | char *ret; | |
10642 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10643 | NT_PRSTATUS, | |
10644 | pid, cursig, gregs); | |
10645 | if (ret != NULL) | |
10646 | return ret; | |
10647 | } | |
10648 | ||
1f20dca5 | 10649 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
10650 | #if defined (HAVE_PRSTATUS32_T) |
10651 | if (bed->s->elfclass == ELFCLASS32) | |
10652 | { | |
10653 | prstatus32_t prstat; | |
10654 | ||
10655 | memset (&prstat, 0, sizeof (prstat)); | |
10656 | prstat.pr_pid = pid; | |
10657 | prstat.pr_cursig = cursig; | |
10658 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10659 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10660 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
10661 | } | |
10662 | else | |
10663 | #endif | |
10664 | { | |
10665 | prstatus_t prstat; | |
10666 | ||
10667 | memset (&prstat, 0, sizeof (prstat)); | |
10668 | prstat.pr_pid = pid; | |
10669 | prstat.pr_cursig = cursig; | |
10670 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10671 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10672 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
10673 | } | |
7c76fa91 MS |
10674 | #endif /* HAVE_PRSTATUS_T */ |
10675 | ||
1f20dca5 UW |
10676 | free (buf); |
10677 | return NULL; | |
10678 | } | |
10679 | ||
51316059 MS |
10680 | #if defined (HAVE_LWPSTATUS_T) |
10681 | char * | |
217aa764 AM |
10682 | elfcore_write_lwpstatus (bfd *abfd, |
10683 | char *buf, | |
10684 | int *bufsiz, | |
10685 | long pid, | |
10686 | int cursig, | |
10687 | const void *gregs) | |
51316059 MS |
10688 | { |
10689 | lwpstatus_t lwpstat; | |
183e98be | 10690 | const char *note_name = "CORE"; |
51316059 MS |
10691 | |
10692 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
10693 | lwpstat.pr_lwpid = pid >> 16; | |
10694 | lwpstat.pr_cursig = cursig; | |
10695 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 10696 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
10697 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
10698 | #if !defined(gregs) | |
10699 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
10700 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
10701 | #else | |
10702 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
10703 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
10704 | #endif | |
10705 | #endif | |
47d9a591 | 10706 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
10707 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
10708 | } | |
10709 | #endif /* HAVE_LWPSTATUS_T */ | |
10710 | ||
7c76fa91 MS |
10711 | #if defined (HAVE_PSTATUS_T) |
10712 | char * | |
217aa764 AM |
10713 | elfcore_write_pstatus (bfd *abfd, |
10714 | char *buf, | |
10715 | int *bufsiz, | |
10716 | long pid, | |
6c10990d NC |
10717 | int cursig ATTRIBUTE_UNUSED, |
10718 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 10719 | { |
183e98be AM |
10720 | const char *note_name = "CORE"; |
10721 | #if defined (HAVE_PSTATUS32_T) | |
10722 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 10723 | |
183e98be AM |
10724 | if (bed->s->elfclass == ELFCLASS32) |
10725 | { | |
10726 | pstatus32_t pstat; | |
10727 | ||
10728 | memset (&pstat, 0, sizeof (pstat)); | |
10729 | pstat.pr_pid = pid & 0xffff; | |
10730 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
10731 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
10732 | return buf; | |
10733 | } | |
10734 | else | |
10735 | #endif | |
10736 | { | |
10737 | pstatus_t pstat; | |
10738 | ||
10739 | memset (&pstat, 0, sizeof (pstat)); | |
10740 | pstat.pr_pid = pid & 0xffff; | |
10741 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
10742 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
10743 | return buf; | |
10744 | } | |
7c76fa91 MS |
10745 | } |
10746 | #endif /* HAVE_PSTATUS_T */ | |
10747 | ||
10748 | char * | |
217aa764 AM |
10749 | elfcore_write_prfpreg (bfd *abfd, |
10750 | char *buf, | |
10751 | int *bufsiz, | |
10752 | const void *fpregs, | |
10753 | int size) | |
7c76fa91 | 10754 | { |
183e98be | 10755 | const char *note_name = "CORE"; |
47d9a591 | 10756 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
10757 | note_name, NT_FPREGSET, fpregs, size); |
10758 | } | |
10759 | ||
10760 | char * | |
217aa764 AM |
10761 | elfcore_write_prxfpreg (bfd *abfd, |
10762 | char *buf, | |
10763 | int *bufsiz, | |
10764 | const void *xfpregs, | |
10765 | int size) | |
7c76fa91 MS |
10766 | { |
10767 | char *note_name = "LINUX"; | |
47d9a591 | 10768 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
10769 | note_name, NT_PRXFPREG, xfpregs, size); |
10770 | } | |
10771 | ||
4339cae0 L |
10772 | char * |
10773 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
10774 | const void *xfpregs, int size) | |
10775 | { | |
97de3545 JB |
10776 | char *note_name; |
10777 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
10778 | note_name = "FreeBSD"; | |
10779 | else | |
10780 | note_name = "LINUX"; | |
4339cae0 L |
10781 | return elfcore_write_note (abfd, buf, bufsiz, |
10782 | note_name, NT_X86_XSTATE, xfpregs, size); | |
10783 | } | |
10784 | ||
97753bd5 AM |
10785 | char * |
10786 | elfcore_write_ppc_vmx (bfd *abfd, | |
10787 | char *buf, | |
10788 | int *bufsiz, | |
10789 | const void *ppc_vmx, | |
10790 | int size) | |
10791 | { | |
10792 | char *note_name = "LINUX"; | |
10793 | return elfcore_write_note (abfd, buf, bufsiz, | |
10794 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
10795 | } | |
10796 | ||
89eeb0bc LM |
10797 | char * |
10798 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
10799 | char *buf, |
10800 | int *bufsiz, | |
10801 | const void *ppc_vsx, | |
10802 | int size) | |
89eeb0bc LM |
10803 | { |
10804 | char *note_name = "LINUX"; | |
10805 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10806 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
10807 | } |
10808 | ||
0675e188 UW |
10809 | static char * |
10810 | elfcore_write_s390_high_gprs (bfd *abfd, | |
10811 | char *buf, | |
10812 | int *bufsiz, | |
10813 | const void *s390_high_gprs, | |
10814 | int size) | |
10815 | { | |
10816 | char *note_name = "LINUX"; | |
10817 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10818 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
10819 | s390_high_gprs, size); |
10820 | } | |
10821 | ||
d7eeb400 MS |
10822 | char * |
10823 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
10824 | char *buf, |
10825 | int *bufsiz, | |
10826 | const void *s390_timer, | |
10827 | int size) | |
d7eeb400 MS |
10828 | { |
10829 | char *note_name = "LINUX"; | |
10830 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10831 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
10832 | } |
10833 | ||
10834 | char * | |
10835 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
10836 | char *buf, |
10837 | int *bufsiz, | |
10838 | const void *s390_todcmp, | |
10839 | int size) | |
d7eeb400 MS |
10840 | { |
10841 | char *note_name = "LINUX"; | |
10842 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10843 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
10844 | } |
10845 | ||
10846 | char * | |
10847 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
10848 | char *buf, |
10849 | int *bufsiz, | |
10850 | const void *s390_todpreg, | |
10851 | int size) | |
d7eeb400 MS |
10852 | { |
10853 | char *note_name = "LINUX"; | |
10854 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10855 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
10856 | } |
10857 | ||
10858 | char * | |
10859 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
10860 | char *buf, |
10861 | int *bufsiz, | |
10862 | const void *s390_ctrs, | |
10863 | int size) | |
d7eeb400 MS |
10864 | { |
10865 | char *note_name = "LINUX"; | |
10866 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10867 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
10868 | } |
10869 | ||
10870 | char * | |
10871 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
10872 | char *buf, |
10873 | int *bufsiz, | |
10874 | const void *s390_prefix, | |
10875 | int size) | |
d7eeb400 MS |
10876 | { |
10877 | char *note_name = "LINUX"; | |
10878 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10879 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
10880 | } |
10881 | ||
355b81d9 UW |
10882 | char * |
10883 | elfcore_write_s390_last_break (bfd *abfd, | |
10884 | char *buf, | |
10885 | int *bufsiz, | |
10886 | const void *s390_last_break, | |
10887 | int size) | |
10888 | { | |
10889 | char *note_name = "LINUX"; | |
10890 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10891 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
10892 | s390_last_break, size); |
10893 | } | |
10894 | ||
10895 | char * | |
10896 | elfcore_write_s390_system_call (bfd *abfd, | |
10897 | char *buf, | |
10898 | int *bufsiz, | |
10899 | const void *s390_system_call, | |
10900 | int size) | |
10901 | { | |
10902 | char *note_name = "LINUX"; | |
10903 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10904 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
10905 | s390_system_call, size); |
10906 | } | |
10907 | ||
abb3f6cc NC |
10908 | char * |
10909 | elfcore_write_s390_tdb (bfd *abfd, | |
10910 | char *buf, | |
10911 | int *bufsiz, | |
10912 | const void *s390_tdb, | |
10913 | int size) | |
10914 | { | |
10915 | char *note_name = "LINUX"; | |
10916 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10917 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
10918 | } |
10919 | ||
4ef9f41a AA |
10920 | char * |
10921 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
10922 | char *buf, | |
10923 | int *bufsiz, | |
10924 | const void *s390_vxrs_low, | |
10925 | int size) | |
10926 | { | |
10927 | char *note_name = "LINUX"; | |
10928 | return elfcore_write_note (abfd, buf, bufsiz, | |
10929 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
10930 | } | |
10931 | ||
10932 | char * | |
10933 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
10934 | char *buf, | |
10935 | int *bufsiz, | |
10936 | const void *s390_vxrs_high, | |
10937 | int size) | |
10938 | { | |
10939 | char *note_name = "LINUX"; | |
10940 | return elfcore_write_note (abfd, buf, bufsiz, | |
10941 | note_name, NT_S390_VXRS_HIGH, | |
10942 | s390_vxrs_high, size); | |
10943 | } | |
10944 | ||
88ab90e8 AA |
10945 | char * |
10946 | elfcore_write_s390_gs_cb (bfd *abfd, | |
10947 | char *buf, | |
10948 | int *bufsiz, | |
10949 | const void *s390_gs_cb, | |
10950 | int size) | |
10951 | { | |
10952 | char *note_name = "LINUX"; | |
10953 | return elfcore_write_note (abfd, buf, bufsiz, | |
10954 | note_name, NT_S390_GS_CB, | |
10955 | s390_gs_cb, size); | |
10956 | } | |
10957 | ||
10958 | char * | |
10959 | elfcore_write_s390_gs_bc (bfd *abfd, | |
10960 | char *buf, | |
10961 | int *bufsiz, | |
10962 | const void *s390_gs_bc, | |
10963 | int size) | |
10964 | { | |
10965 | char *note_name = "LINUX"; | |
10966 | return elfcore_write_note (abfd, buf, bufsiz, | |
10967 | note_name, NT_S390_GS_BC, | |
10968 | s390_gs_bc, size); | |
10969 | } | |
10970 | ||
faa9a424 UW |
10971 | char * |
10972 | elfcore_write_arm_vfp (bfd *abfd, | |
10973 | char *buf, | |
10974 | int *bufsiz, | |
10975 | const void *arm_vfp, | |
10976 | int size) | |
10977 | { | |
10978 | char *note_name = "LINUX"; | |
10979 | return elfcore_write_note (abfd, buf, bufsiz, | |
10980 | note_name, NT_ARM_VFP, arm_vfp, size); | |
10981 | } | |
10982 | ||
652451f8 YZ |
10983 | char * |
10984 | elfcore_write_aarch_tls (bfd *abfd, | |
10985 | char *buf, | |
10986 | int *bufsiz, | |
10987 | const void *aarch_tls, | |
10988 | int size) | |
10989 | { | |
10990 | char *note_name = "LINUX"; | |
10991 | return elfcore_write_note (abfd, buf, bufsiz, | |
10992 | note_name, NT_ARM_TLS, aarch_tls, size); | |
10993 | } | |
10994 | ||
10995 | char * | |
10996 | elfcore_write_aarch_hw_break (bfd *abfd, | |
10997 | char *buf, | |
10998 | int *bufsiz, | |
10999 | const void *aarch_hw_break, | |
11000 | int size) | |
11001 | { | |
11002 | char *note_name = "LINUX"; | |
11003 | return elfcore_write_note (abfd, buf, bufsiz, | |
11004 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11005 | } | |
11006 | ||
11007 | char * | |
11008 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11009 | char *buf, | |
11010 | int *bufsiz, | |
11011 | const void *aarch_hw_watch, | |
11012 | int size) | |
11013 | { | |
11014 | char *note_name = "LINUX"; | |
11015 | return elfcore_write_note (abfd, buf, bufsiz, | |
11016 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11017 | } | |
11018 | ||
bb864ac1 CES |
11019 | char * |
11020 | elfcore_write_register_note (bfd *abfd, | |
11021 | char *buf, | |
11022 | int *bufsiz, | |
11023 | const char *section, | |
11024 | const void *data, | |
11025 | int size) | |
11026 | { | |
11027 | if (strcmp (section, ".reg2") == 0) | |
11028 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11029 | if (strcmp (section, ".reg-xfp") == 0) | |
11030 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11031 | if (strcmp (section, ".reg-xstate") == 0) |
11032 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11033 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11034 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11035 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11036 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11037 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11038 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11039 | if (strcmp (section, ".reg-s390-timer") == 0) |
11040 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11041 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11042 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11043 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11044 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11045 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11046 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11047 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11048 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11049 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11050 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11051 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11052 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11053 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11054 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11055 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11056 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11057 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11058 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11059 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11060 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11061 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11062 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11063 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11064 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11065 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11066 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11067 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11068 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11069 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11070 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11071 | return NULL; |
11072 | } | |
11073 | ||
b34976b6 | 11074 | static bfd_boolean |
276da9b3 L |
11075 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11076 | size_t align) | |
252b5132 | 11077 | { |
c044fabd | 11078 | char *p; |
252b5132 | 11079 | |
276da9b3 L |
11080 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11081 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11082 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11083 | align is less than 4, we use 4 byte alignment. */ | |
11084 | if (align < 4) | |
11085 | align = 4; | |
ef135d43 NC |
11086 | if (align != 4 && align != 8) |
11087 | return FALSE; | |
276da9b3 | 11088 | |
252b5132 RH |
11089 | p = buf; |
11090 | while (p < buf + size) | |
11091 | { | |
c044fabd | 11092 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11093 | Elf_Internal_Note in; |
11094 | ||
baea7ef1 AM |
11095 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11096 | return FALSE; | |
11097 | ||
dc810e39 | 11098 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11099 | |
dc810e39 | 11100 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11101 | in.namedata = xnp->name; |
baea7ef1 AM |
11102 | if (in.namesz > buf - in.namedata + size) |
11103 | return FALSE; | |
252b5132 | 11104 | |
dc810e39 | 11105 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11106 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11107 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11108 | if (in.descsz != 0 |
11109 | && (in.descdata >= buf + size | |
11110 | || in.descsz > buf - in.descdata + size)) | |
11111 | return FALSE; | |
252b5132 | 11112 | |
718175fa | 11113 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11114 | { |
718175fa JK |
11115 | default: |
11116 | return TRUE; | |
11117 | ||
11118 | case bfd_core: | |
f64e188b | 11119 | { |
8acbedd6 | 11120 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11121 | struct |
718175fa | 11122 | { |
f64e188b | 11123 | const char * string; |
8acbedd6 | 11124 | size_t len; |
f64e188b | 11125 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11126 | } |
f64e188b | 11127 | grokers[] = |
b15fa79e | 11128 | { |
8acbedd6 | 11129 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11130 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11131 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11132 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11133 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
11134 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 11135 | }; |
8acbedd6 | 11136 | #undef GROKER_ELEMENT |
f64e188b NC |
11137 | int i; |
11138 | ||
11139 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11140 | { |
11141 | if (in.namesz >= grokers[i].len | |
11142 | && strncmp (in.namedata, grokers[i].string, | |
11143 | grokers[i].len) == 0) | |
11144 | { | |
11145 | if (! grokers[i].func (abfd, & in)) | |
11146 | return FALSE; | |
11147 | break; | |
11148 | } | |
11149 | } | |
f64e188b NC |
11150 | break; |
11151 | } | |
718175fa JK |
11152 | |
11153 | case bfd_object: | |
11154 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11155 | { | |
11156 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11157 | return FALSE; | |
11158 | } | |
e21e5835 NC |
11159 | else if (in.namesz == sizeof "stapsdt" |
11160 | && strcmp (in.namedata, "stapsdt") == 0) | |
11161 | { | |
11162 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11163 | return FALSE; | |
11164 | } | |
718175fa | 11165 | break; |
08a40648 | 11166 | } |
252b5132 | 11167 | |
276da9b3 | 11168 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11169 | } |
11170 | ||
718175fa JK |
11171 | return TRUE; |
11172 | } | |
11173 | ||
11174 | static bfd_boolean | |
276da9b3 L |
11175 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11176 | size_t align) | |
718175fa JK |
11177 | { |
11178 | char *buf; | |
11179 | ||
957e1fc1 | 11180 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11181 | return TRUE; |
11182 | ||
11183 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11184 | return FALSE; | |
11185 | ||
f64e188b | 11186 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11187 | if (buf == NULL) |
11188 | return FALSE; | |
11189 | ||
f64e188b NC |
11190 | /* PR 17512: file: ec08f814 |
11191 | 0-termintate the buffer so that string searches will not overflow. */ | |
11192 | buf[size] = 0; | |
11193 | ||
718175fa | 11194 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11195 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11196 | { |
11197 | free (buf); | |
11198 | return FALSE; | |
11199 | } | |
11200 | ||
252b5132 | 11201 | free (buf); |
b34976b6 | 11202 | return TRUE; |
252b5132 | 11203 | } |
98d8431c JB |
11204 | \f |
11205 | /* Providing external access to the ELF program header table. */ | |
11206 | ||
11207 | /* Return an upper bound on the number of bytes required to store a | |
11208 | copy of ABFD's program header table entries. Return -1 if an error | |
11209 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11210 | |
98d8431c | 11211 | long |
217aa764 | 11212 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11213 | { |
11214 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11215 | { | |
11216 | bfd_set_error (bfd_error_wrong_format); | |
11217 | return -1; | |
11218 | } | |
11219 | ||
936e320b | 11220 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11221 | } |
11222 | ||
98d8431c JB |
11223 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11224 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11225 | defined in include/elf/internal.h. To find out how large the | |
11226 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11227 | ||
11228 | Return the number of program header table entries read, or -1 if an | |
11229 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11230 | |
98d8431c | 11231 | int |
217aa764 | 11232 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11233 | { |
11234 | int num_phdrs; | |
11235 | ||
11236 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11237 | { | |
11238 | bfd_set_error (bfd_error_wrong_format); | |
11239 | return -1; | |
11240 | } | |
11241 | ||
11242 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 11243 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
11244 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
11245 | ||
11246 | return num_phdrs; | |
11247 | } | |
ae4221d7 | 11248 | |
db6751f2 | 11249 | enum elf_reloc_type_class |
7e612e98 AM |
11250 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11251 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11252 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11253 | { |
11254 | return reloc_class_normal; | |
11255 | } | |
f8df10f4 | 11256 | |
47d9a591 | 11257 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11258 | relocation against a local symbol. */ |
11259 | ||
11260 | bfd_vma | |
217aa764 AM |
11261 | _bfd_elf_rela_local_sym (bfd *abfd, |
11262 | Elf_Internal_Sym *sym, | |
8517fae7 | 11263 | asection **psec, |
217aa764 | 11264 | Elf_Internal_Rela *rel) |
f8df10f4 | 11265 | { |
8517fae7 | 11266 | asection *sec = *psec; |
f8df10f4 JJ |
11267 | bfd_vma relocation; |
11268 | ||
11269 | relocation = (sec->output_section->vma | |
11270 | + sec->output_offset | |
11271 | + sym->st_value); | |
11272 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 11273 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11274 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11275 | { |
f8df10f4 | 11276 | rel->r_addend = |
8517fae7 | 11277 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11278 | elf_section_data (sec)->sec_info, |
753731ee AM |
11279 | sym->st_value + rel->r_addend); |
11280 | if (sec != *psec) | |
11281 | { | |
11282 | /* If we have changed the section, and our original section is | |
11283 | marked with SEC_EXCLUDE, it means that the original | |
11284 | SEC_MERGE section has been completely subsumed in some | |
11285 | other SEC_MERGE section. In this case, we need to leave | |
11286 | some info around for --emit-relocs. */ | |
11287 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
11288 | sec->kept_section = *psec; | |
11289 | sec = *psec; | |
11290 | } | |
8517fae7 AM |
11291 | rel->r_addend -= relocation; |
11292 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
11293 | } |
11294 | return relocation; | |
11295 | } | |
c629eae0 JJ |
11296 | |
11297 | bfd_vma | |
217aa764 AM |
11298 | _bfd_elf_rel_local_sym (bfd *abfd, |
11299 | Elf_Internal_Sym *sym, | |
11300 | asection **psec, | |
11301 | bfd_vma addend) | |
47d9a591 | 11302 | { |
c629eae0 JJ |
11303 | asection *sec = *psec; |
11304 | ||
dbaa2011 | 11305 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
11306 | return sym->st_value + addend; |
11307 | ||
11308 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 11309 | elf_section_data (sec)->sec_info, |
753731ee | 11310 | sym->st_value + addend); |
c629eae0 JJ |
11311 | } |
11312 | ||
37b01f6a DG |
11313 | /* Adjust an address within a section. Given OFFSET within SEC, return |
11314 | the new offset within the section, based upon changes made to the | |
11315 | section. Returns -1 if the offset is now invalid. | |
11316 | The offset (in abnd out) is in target sized bytes, however big a | |
11317 | byte may be. */ | |
11318 | ||
c629eae0 | 11319 | bfd_vma |
217aa764 | 11320 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 11321 | struct bfd_link_info *info, |
217aa764 AM |
11322 | asection *sec, |
11323 | bfd_vma offset) | |
c629eae0 | 11324 | { |
68bfbfcc | 11325 | switch (sec->sec_info_type) |
65765700 | 11326 | { |
dbaa2011 | 11327 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
11328 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
11329 | offset); | |
dbaa2011 | 11330 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 11331 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 11332 | |
65765700 | 11333 | default: |
310fd250 L |
11334 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
11335 | { | |
37b01f6a | 11336 | /* Reverse the offset. */ |
310fd250 L |
11337 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11338 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
11339 | |
11340 | /* address_size and sec->size are in octets. Convert | |
11341 | to bytes before subtracting the original offset. */ | |
11342 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 11343 | } |
65765700 JJ |
11344 | return offset; |
11345 | } | |
c629eae0 | 11346 | } |
3333a7c3 RM |
11347 | \f |
11348 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
11349 | reconstruct an ELF file by reading the segments out of remote memory | |
11350 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
11351 | points to. If not null, *LOADBASEP is filled in with the difference | |
11352 | between the VMAs from which the segments were read, and the VMAs the | |
11353 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
11354 | ||
11355 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
11356 | remote memory at target address VMA into the local buffer at MYADDR; it | |
11357 | should return zero on success or an `errno' code on failure. TEMPL must | |
11358 | be a BFD for an ELF target with the word size and byte order found in | |
11359 | the remote memory. */ | |
11360 | ||
11361 | bfd * | |
217aa764 AM |
11362 | bfd_elf_bfd_from_remote_memory |
11363 | (bfd *templ, | |
11364 | bfd_vma ehdr_vma, | |
f0a5d95a | 11365 | bfd_size_type size, |
217aa764 | 11366 | bfd_vma *loadbasep, |
fe78531d | 11367 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
11368 | { |
11369 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 11370 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 11371 | } |
4c45e5c9 JJ |
11372 | \f |
11373 | long | |
c9727e01 AM |
11374 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
11375 | long symcount ATTRIBUTE_UNUSED, | |
11376 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 11377 | long dynsymcount, |
c9727e01 AM |
11378 | asymbol **dynsyms, |
11379 | asymbol **ret) | |
4c45e5c9 JJ |
11380 | { |
11381 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
11382 | asection *relplt; | |
11383 | asymbol *s; | |
11384 | const char *relplt_name; | |
11385 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
11386 | arelent *p; | |
11387 | long count, i, n; | |
11388 | size_t size; | |
11389 | Elf_Internal_Shdr *hdr; | |
11390 | char *names; | |
11391 | asection *plt; | |
11392 | ||
8615f3f2 AM |
11393 | *ret = NULL; |
11394 | ||
90e3cdf2 JJ |
11395 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
11396 | return 0; | |
11397 | ||
8615f3f2 AM |
11398 | if (dynsymcount <= 0) |
11399 | return 0; | |
11400 | ||
4c45e5c9 JJ |
11401 | if (!bed->plt_sym_val) |
11402 | return 0; | |
11403 | ||
11404 | relplt_name = bed->relplt_name; | |
11405 | if (relplt_name == NULL) | |
d35fd659 | 11406 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
11407 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
11408 | if (relplt == NULL) | |
11409 | return 0; | |
11410 | ||
11411 | hdr = &elf_section_data (relplt)->this_hdr; | |
11412 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
11413 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
11414 | return 0; | |
11415 | ||
11416 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
11417 | if (plt == NULL) | |
11418 | return 0; | |
11419 | ||
11420 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 11421 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
11422 | return -1; |
11423 | ||
eea6121a | 11424 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
11425 | size = count * sizeof (asymbol); |
11426 | p = relplt->relocation; | |
cb53bf42 | 11427 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
11428 | { |
11429 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
11430 | if (p->addend != 0) | |
11431 | { | |
11432 | #ifdef BFD64 | |
11433 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
11434 | #else | |
11435 | size += sizeof ("+0x") - 1 + 8; | |
11436 | #endif | |
11437 | } | |
11438 | } | |
4c45e5c9 | 11439 | |
a50b1753 | 11440 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
11441 | if (s == NULL) |
11442 | return -1; | |
11443 | ||
11444 | names = (char *) (s + count); | |
11445 | p = relplt->relocation; | |
11446 | n = 0; | |
cb53bf42 | 11447 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
11448 | { |
11449 | size_t len; | |
11450 | bfd_vma addr; | |
11451 | ||
11452 | addr = bed->plt_sym_val (i, plt, p); | |
11453 | if (addr == (bfd_vma) -1) | |
11454 | continue; | |
11455 | ||
11456 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
11457 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
11458 | we are defining a symbol, ensure one of them is set. */ | |
11459 | if ((s->flags & BSF_LOCAL) == 0) | |
11460 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 11461 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
11462 | s->section = plt; |
11463 | s->value = addr - plt->vma; | |
11464 | s->name = names; | |
8f39ba8e | 11465 | s->udata.p = NULL; |
4c45e5c9 JJ |
11466 | len = strlen ((*p->sym_ptr_ptr)->name); |
11467 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
11468 | names += len; | |
041de40d AM |
11469 | if (p->addend != 0) |
11470 | { | |
1d770845 | 11471 | char buf[30], *a; |
d324f6d6 | 11472 | |
041de40d AM |
11473 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
11474 | names += sizeof ("+0x") - 1; | |
1d770845 L |
11475 | bfd_sprintf_vma (abfd, buf, p->addend); |
11476 | for (a = buf; *a == '0'; ++a) | |
11477 | ; | |
11478 | len = strlen (a); | |
11479 | memcpy (names, a, len); | |
11480 | names += len; | |
041de40d | 11481 | } |
4c45e5c9 JJ |
11482 | memcpy (names, "@plt", sizeof ("@plt")); |
11483 | names += sizeof ("@plt"); | |
8f39ba8e | 11484 | ++s, ++n; |
4c45e5c9 JJ |
11485 | } |
11486 | ||
11487 | return n; | |
11488 | } | |
3d7f7666 | 11489 | |
821e6ff6 AM |
11490 | /* It is only used by x86-64 so far. |
11491 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
11492 | but current usage would allow all of _bfd_std_section to be zero. */ |
11493 | static const asymbol lcomm_sym | |
11494 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 11495 | asection _bfd_elf_large_com_section |
7eacd66b | 11496 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 11497 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 11498 | |
d1036acb | 11499 | void |
78245035 L |
11500 | _bfd_elf_post_process_headers (bfd * abfd, |
11501 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
d1036acb L |
11502 | { |
11503 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
11504 | ||
11505 | i_ehdrp = elf_elfheader (abfd); | |
11506 | ||
11507 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
11508 | |
11509 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 11510 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 11511 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 11512 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 11513 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 11514 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 11515 | } |
fcb93ecf PB |
11516 | |
11517 | ||
11518 | /* Return TRUE for ELF symbol types that represent functions. | |
11519 | This is the default version of this function, which is sufficient for | |
d8045f23 | 11520 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
11521 | |
11522 | bfd_boolean | |
11523 | _bfd_elf_is_function_type (unsigned int type) | |
11524 | { | |
d8045f23 NC |
11525 | return (type == STT_FUNC |
11526 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 11527 | } |
9f296da3 | 11528 | |
aef36ac1 AM |
11529 | /* If the ELF symbol SYM might be a function in SEC, return the |
11530 | function size and set *CODE_OFF to the function's entry point, | |
11531 | otherwise return zero. */ | |
9f296da3 | 11532 | |
aef36ac1 AM |
11533 | bfd_size_type |
11534 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
11535 | bfd_vma *code_off) | |
9f296da3 | 11536 | { |
aef36ac1 AM |
11537 | bfd_size_type size; |
11538 | ||
ff9e0f5b | 11539 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
11540 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
11541 | || sym->section != sec) | |
11542 | return 0; | |
ff9e0f5b | 11543 | |
ff9e0f5b | 11544 | *code_off = sym->value; |
aef36ac1 AM |
11545 | size = 0; |
11546 | if (!(sym->flags & BSF_SYNTHETIC)) | |
11547 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
11548 | if (size == 0) | |
11549 | size = 1; | |
11550 | return size; | |
9f296da3 | 11551 | } |