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Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
a2c58332 | 3 | Copyright (C) 1993-2022 Free Software Foundation, Inc. |
252b5132 | 4 | |
5e8d7549 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
5e8d7549 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 10 | (at your option) any later version. |
252b5132 | 11 | |
5e8d7549 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
5e8d7549 | 17 | You should have received a copy of the GNU General Public License |
b34976b6 | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
1b74d094 BW |
23 | /* |
24 | SECTION | |
252b5132 RH |
25 | ELF backends |
26 | ||
27 | BFD support for ELF formats is being worked on. | |
28 | Currently, the best supported back ends are for sparc and i386 | |
29 | (running svr4 or Solaris 2). | |
30 | ||
31 | Documentation of the internals of the support code still needs | |
32 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 33 | haven't bothered yet. */ |
252b5132 | 34 | |
7ee38065 MS |
35 | /* For sparc64-cross-sparc32. */ |
36 | #define _SYSCALL32 | |
252b5132 | 37 | #include "sysdep.h" |
3a551c7a | 38 | #include <limits.h> |
3db64b00 | 39 | #include "bfd.h" |
252b5132 RH |
40 | #include "bfdlink.h" |
41 | #include "libbfd.h" | |
42 | #define ARCH_SIZE 0 | |
43 | #include "elf-bfd.h" | |
e0e8c97f | 44 | #include "libiberty.h" |
ff59fc36 | 45 | #include "safe-ctype.h" |
de64ce13 | 46 | #include "elf-linux-core.h" |
252b5132 | 47 | |
8bc7f138 L |
48 | #ifdef CORE_HEADER |
49 | #include CORE_HEADER | |
50 | #endif | |
51 | ||
217aa764 | 52 | static int elf_sort_sections (const void *, const void *); |
0a1b45a2 AM |
53 | static bool assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
54 | static bool swap_out_syms (bfd *, struct elf_strtab_hash **, int, | |
55 | struct bfd_link_info *); | |
56 | static bool elf_parse_notes (bfd *abfd, char *buf, size_t size, | |
57 | file_ptr offset, size_t align); | |
50b2bdb7 | 58 | |
252b5132 RH |
59 | /* Swap version information in and out. The version information is |
60 | currently size independent. If that ever changes, this code will | |
61 | need to move into elfcode.h. */ | |
62 | ||
63 | /* Swap in a Verdef structure. */ | |
64 | ||
65 | void | |
217aa764 AM |
66 | _bfd_elf_swap_verdef_in (bfd *abfd, |
67 | const Elf_External_Verdef *src, | |
68 | Elf_Internal_Verdef *dst) | |
252b5132 | 69 | { |
dc810e39 AM |
70 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
71 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
72 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
73 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
74 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
75 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
76 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
77 | } |
78 | ||
79 | /* Swap out a Verdef structure. */ | |
80 | ||
81 | void | |
217aa764 AM |
82 | _bfd_elf_swap_verdef_out (bfd *abfd, |
83 | const Elf_Internal_Verdef *src, | |
84 | Elf_External_Verdef *dst) | |
252b5132 | 85 | { |
dc810e39 AM |
86 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
87 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
88 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
89 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
90 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
91 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
92 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
93 | } |
94 | ||
95 | /* Swap in a Verdaux structure. */ | |
96 | ||
97 | void | |
217aa764 AM |
98 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
99 | const Elf_External_Verdaux *src, | |
100 | Elf_Internal_Verdaux *dst) | |
252b5132 | 101 | { |
dc810e39 AM |
102 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
103 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
104 | } |
105 | ||
106 | /* Swap out a Verdaux structure. */ | |
107 | ||
108 | void | |
217aa764 AM |
109 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
110 | const Elf_Internal_Verdaux *src, | |
111 | Elf_External_Verdaux *dst) | |
252b5132 | 112 | { |
dc810e39 AM |
113 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
114 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
115 | } |
116 | ||
117 | /* Swap in a Verneed structure. */ | |
118 | ||
119 | void | |
217aa764 AM |
120 | _bfd_elf_swap_verneed_in (bfd *abfd, |
121 | const Elf_External_Verneed *src, | |
122 | Elf_Internal_Verneed *dst) | |
252b5132 | 123 | { |
dc810e39 AM |
124 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
125 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
126 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
127 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
128 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
129 | } |
130 | ||
131 | /* Swap out a Verneed structure. */ | |
132 | ||
133 | void | |
217aa764 AM |
134 | _bfd_elf_swap_verneed_out (bfd *abfd, |
135 | const Elf_Internal_Verneed *src, | |
136 | Elf_External_Verneed *dst) | |
252b5132 | 137 | { |
dc810e39 AM |
138 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
139 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
140 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
141 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
142 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
143 | } |
144 | ||
145 | /* Swap in a Vernaux structure. */ | |
146 | ||
147 | void | |
217aa764 AM |
148 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
149 | const Elf_External_Vernaux *src, | |
150 | Elf_Internal_Vernaux *dst) | |
252b5132 | 151 | { |
dc810e39 AM |
152 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
153 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
154 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
155 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
156 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
157 | } |
158 | ||
159 | /* Swap out a Vernaux structure. */ | |
160 | ||
161 | void | |
217aa764 AM |
162 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
163 | const Elf_Internal_Vernaux *src, | |
164 | Elf_External_Vernaux *dst) | |
252b5132 | 165 | { |
dc810e39 AM |
166 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
167 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
168 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
169 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
170 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
171 | } |
172 | ||
173 | /* Swap in a Versym structure. */ | |
174 | ||
175 | void | |
217aa764 AM |
176 | _bfd_elf_swap_versym_in (bfd *abfd, |
177 | const Elf_External_Versym *src, | |
178 | Elf_Internal_Versym *dst) | |
252b5132 | 179 | { |
dc810e39 | 180 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
181 | } |
182 | ||
183 | /* Swap out a Versym structure. */ | |
184 | ||
185 | void | |
217aa764 AM |
186 | _bfd_elf_swap_versym_out (bfd *abfd, |
187 | const Elf_Internal_Versym *src, | |
188 | Elf_External_Versym *dst) | |
252b5132 | 189 | { |
dc810e39 | 190 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
191 | } |
192 | ||
193 | /* Standard ELF hash function. Do not change this function; you will | |
194 | cause invalid hash tables to be generated. */ | |
3a99b017 | 195 | |
252b5132 | 196 | unsigned long |
217aa764 | 197 | bfd_elf_hash (const char *namearg) |
252b5132 | 198 | { |
3a99b017 | 199 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
200 | unsigned long h = 0; |
201 | unsigned long g; | |
202 | int ch; | |
203 | ||
204 | while ((ch = *name++) != '\0') | |
205 | { | |
206 | h = (h << 4) + ch; | |
207 | if ((g = (h & 0xf0000000)) != 0) | |
208 | { | |
209 | h ^= g >> 24; | |
210 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
211 | this case and on some machines one insn instead of two. */ | |
212 | h ^= g; | |
213 | } | |
214 | } | |
32dfa85d | 215 | return h & 0xffffffff; |
252b5132 RH |
216 | } |
217 | ||
fdc90cb4 JJ |
218 | /* DT_GNU_HASH hash function. Do not change this function; you will |
219 | cause invalid hash tables to be generated. */ | |
220 | ||
221 | unsigned long | |
222 | bfd_elf_gnu_hash (const char *namearg) | |
223 | { | |
224 | const unsigned char *name = (const unsigned char *) namearg; | |
225 | unsigned long h = 5381; | |
226 | unsigned char ch; | |
227 | ||
228 | while ((ch = *name++) != '\0') | |
229 | h = (h << 5) + h + ch; | |
230 | return h & 0xffffffff; | |
231 | } | |
232 | ||
0c8d6e5c AM |
233 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
234 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
0a1b45a2 | 235 | bool |
0c8d6e5c | 236 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 237 | size_t object_size, |
4dfe6ac6 | 238 | enum elf_target_id object_id) |
252b5132 | 239 | { |
0ffa91dd NC |
240 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
241 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
242 | if (abfd->tdata.any == NULL) | |
0a1b45a2 | 243 | return false; |
252b5132 | 244 | |
0ffa91dd | 245 | elf_object_id (abfd) = object_id; |
c0355132 AM |
246 | if (abfd->direction != read_direction) |
247 | { | |
248 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
249 | if (o == NULL) | |
0a1b45a2 | 250 | return false; |
c0355132 AM |
251 | elf_tdata (abfd)->o = o; |
252 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
253 | } | |
0a1b45a2 | 254 | return true; |
252b5132 RH |
255 | } |
256 | ||
0ffa91dd | 257 | |
0a1b45a2 | 258 | bool |
ae95ffa6 | 259 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 260 | { |
ae95ffa6 | 261 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 262 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 263 | bed->target_id); |
0ffa91dd NC |
264 | } |
265 | ||
0a1b45a2 | 266 | bool |
217aa764 | 267 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 268 | { |
c044fabd | 269 | /* I think this can be done just like an object file. */ |
228e534f | 270 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
0a1b45a2 | 271 | return false; |
228e534f AM |
272 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); |
273 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
274 | } |
275 | ||
6d5944fc | 276 | char * |
217aa764 | 277 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
278 | { |
279 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 280 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
281 | file_ptr offset; |
282 | bfd_size_type shstrtabsize; | |
252b5132 RH |
283 | |
284 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
285 | if (i_shdrp == 0 |
286 | || shindex >= elf_numsections (abfd) | |
287 | || i_shdrp[shindex] == 0) | |
f075ee0c | 288 | return NULL; |
252b5132 | 289 | |
f075ee0c | 290 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
291 | if (shstrtab == NULL) |
292 | { | |
c044fabd | 293 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
294 | offset = i_shdrp[shindex]->sh_offset; |
295 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
296 | |
297 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
298 | in case the string table is not terminated. */ | |
3471d59d | 299 | if (shstrtabsize + 1 <= 1 |
06614111 | 300 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
2bb3687b AM |
301 | || (shstrtab = _bfd_alloc_and_read (abfd, shstrtabsize + 1, |
302 | shstrtabsize)) == NULL) | |
303 | { | |
3471d59d CC |
304 | /* Once we've failed to read it, make sure we don't keep |
305 | trying. Otherwise, we'll keep allocating space for | |
306 | the string table over and over. */ | |
307 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
308 | } |
309 | else | |
310 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 311 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 312 | } |
f075ee0c | 313 | return (char *) shstrtab; |
252b5132 RH |
314 | } |
315 | ||
316 | char * | |
217aa764 AM |
317 | bfd_elf_string_from_elf_section (bfd *abfd, |
318 | unsigned int shindex, | |
319 | unsigned int strindex) | |
252b5132 RH |
320 | { |
321 | Elf_Internal_Shdr *hdr; | |
322 | ||
323 | if (strindex == 0) | |
324 | return ""; | |
325 | ||
74f2e02b AM |
326 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
327 | return NULL; | |
328 | ||
252b5132 RH |
329 | hdr = elf_elfsections (abfd)[shindex]; |
330 | ||
06614111 NC |
331 | if (hdr->contents == NULL) |
332 | { | |
333 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
334 | { | |
335 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 336 | /* xgettext:c-format */ |
871b3ab2 | 337 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 338 | " a non-string section (number %d)"), |
06614111 NC |
339 | abfd, shindex); |
340 | return NULL; | |
341 | } | |
b1fa9dd6 | 342 | |
06614111 NC |
343 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
344 | return NULL; | |
345 | } | |
eed5def8 NC |
346 | else |
347 | { | |
348 | /* PR 24273: The string section's contents may have already | |
349 | been loaded elsewhere, eg because a corrupt file has the | |
350 | string section index in the ELF header pointing at a group | |
351 | section. So be paranoid, and test that the last byte of | |
352 | the section is zero. */ | |
353 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
354 | return NULL; | |
355 | } | |
252b5132 RH |
356 | |
357 | if (strindex >= hdr->sh_size) | |
358 | { | |
1b3a8575 | 359 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 360 | _bfd_error_handler |
695344c0 | 361 | /* xgettext:c-format */ |
2dcf00ce AM |
362 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
363 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 364 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 365 | ? ".shstrtab" |
1b3a8575 | 366 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 367 | return NULL; |
252b5132 RH |
368 | } |
369 | ||
370 | return ((char *) hdr->contents) + strindex; | |
371 | } | |
372 | ||
6cdc0ccc AM |
373 | /* Read and convert symbols to internal format. |
374 | SYMCOUNT specifies the number of symbols to read, starting from | |
375 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
376 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
377 | symbols, and symbol section index extensions, respectively. |
378 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
379 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
380 | |
381 | Elf_Internal_Sym * | |
217aa764 AM |
382 | bfd_elf_get_elf_syms (bfd *ibfd, |
383 | Elf_Internal_Shdr *symtab_hdr, | |
384 | size_t symcount, | |
385 | size_t symoffset, | |
386 | Elf_Internal_Sym *intsym_buf, | |
387 | void *extsym_buf, | |
388 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
389 | { |
390 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 391 | void *alloc_ext; |
df622259 | 392 | const bfd_byte *esym; |
6cdc0ccc AM |
393 | Elf_External_Sym_Shndx *alloc_extshndx; |
394 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 395 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
396 | Elf_Internal_Sym *isym; |
397 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 398 | const struct elf_backend_data *bed; |
6cdc0ccc | 399 | size_t extsym_size; |
1f4361a7 | 400 | size_t amt; |
6cdc0ccc AM |
401 | file_ptr pos; |
402 | ||
e44a2c9c AM |
403 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
404 | abort (); | |
405 | ||
6cdc0ccc AM |
406 | if (symcount == 0) |
407 | return intsym_buf; | |
408 | ||
409 | /* Normal syms might have section extension entries. */ | |
410 | shndx_hdr = NULL; | |
6a40cf0c NC |
411 | if (elf_symtab_shndx_list (ibfd) != NULL) |
412 | { | |
413 | elf_section_list * entry; | |
414 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
415 | ||
416 | /* Find an index section that is linked to this symtab section. */ | |
417 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
418 | { |
419 | /* PR 20063. */ | |
420 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
421 | continue; | |
422 | ||
423 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
424 | { | |
425 | shndx_hdr = & entry->hdr; | |
426 | break; | |
427 | }; | |
428 | } | |
6a40cf0c NC |
429 | |
430 | if (shndx_hdr == NULL) | |
431 | { | |
432 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
433 | /* Not really accurate, but this was how the old code used to work. */ | |
434 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
435 | /* Otherwise we do nothing. The assumption is that | |
436 | the index table will not be needed. */ | |
437 | } | |
438 | } | |
6cdc0ccc AM |
439 | |
440 | /* Read the symbols. */ | |
441 | alloc_ext = NULL; | |
442 | alloc_extshndx = NULL; | |
4dd07732 | 443 | alloc_intsym = NULL; |
6cdc0ccc AM |
444 | bed = get_elf_backend_data (ibfd); |
445 | extsym_size = bed->s->sizeof_sym; | |
1f4361a7 AM |
446 | if (_bfd_mul_overflow (symcount, extsym_size, &amt)) |
447 | { | |
448 | bfd_set_error (bfd_error_file_too_big); | |
449 | intsym_buf = NULL; | |
450 | goto out; | |
451 | } | |
6cdc0ccc AM |
452 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
453 | if (extsym_buf == NULL) | |
454 | { | |
1f4361a7 | 455 | alloc_ext = bfd_malloc (amt); |
6cdc0ccc AM |
456 | extsym_buf = alloc_ext; |
457 | } | |
458 | if (extsym_buf == NULL | |
459 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
460 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
461 | { | |
462 | intsym_buf = NULL; | |
463 | goto out; | |
464 | } | |
465 | ||
466 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
467 | extshndx_buf = NULL; | |
468 | else | |
469 | { | |
1f4361a7 AM |
470 | if (_bfd_mul_overflow (symcount, sizeof (Elf_External_Sym_Shndx), &amt)) |
471 | { | |
472 | bfd_set_error (bfd_error_file_too_big); | |
473 | intsym_buf = NULL; | |
474 | goto out; | |
475 | } | |
6cdc0ccc AM |
476 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
477 | if (extshndx_buf == NULL) | |
478 | { | |
1f4361a7 | 479 | alloc_extshndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt); |
6cdc0ccc AM |
480 | extshndx_buf = alloc_extshndx; |
481 | } | |
482 | if (extshndx_buf == NULL | |
483 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
484 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
485 | { | |
486 | intsym_buf = NULL; | |
487 | goto out; | |
488 | } | |
489 | } | |
490 | ||
491 | if (intsym_buf == NULL) | |
492 | { | |
1f4361a7 AM |
493 | if (_bfd_mul_overflow (symcount, sizeof (Elf_Internal_Sym), &amt)) |
494 | { | |
495 | bfd_set_error (bfd_error_file_too_big); | |
496 | goto out; | |
497 | } | |
498 | alloc_intsym = (Elf_Internal_Sym *) bfd_malloc (amt); | |
4dd07732 | 499 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
500 | if (intsym_buf == NULL) |
501 | goto out; | |
502 | } | |
503 | ||
504 | /* Convert the symbols to internal form. */ | |
505 | isymend = intsym_buf + symcount; | |
a50b1753 | 506 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 507 | shndx = extshndx_buf; |
6cdc0ccc AM |
508 | isym < isymend; |
509 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
510 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
511 | { | |
512 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 513 | /* xgettext:c-format */ |
871b3ab2 | 514 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 515 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 516 | ibfd, (unsigned long) symoffset); |
c9594989 | 517 | free (alloc_intsym); |
8384fb8f AM |
518 | intsym_buf = NULL; |
519 | goto out; | |
520 | } | |
6cdc0ccc AM |
521 | |
522 | out: | |
c9594989 AM |
523 | free (alloc_ext); |
524 | free (alloc_extshndx); | |
6cdc0ccc AM |
525 | |
526 | return intsym_buf; | |
527 | } | |
528 | ||
5cab59f6 AM |
529 | /* Look up a symbol name. */ |
530 | const char * | |
be8dd2ca AM |
531 | bfd_elf_sym_name (bfd *abfd, |
532 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
533 | Elf_Internal_Sym *isym, |
534 | asection *sym_sec) | |
5cab59f6 | 535 | { |
26c61ae5 | 536 | const char *name; |
5cab59f6 | 537 | unsigned int iname = isym->st_name; |
be8dd2ca | 538 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 539 | |
138f35cc JJ |
540 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
541 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 542 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
543 | { |
544 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
545 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
546 | } | |
547 | ||
26c61ae5 L |
548 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
549 | if (name == NULL) | |
550 | name = "(null)"; | |
551 | else if (sym_sec && *name == '\0') | |
fd361982 | 552 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
553 | |
554 | return name; | |
5cab59f6 AM |
555 | } |
556 | ||
dbb410c3 AM |
557 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
558 | sections. The first element is the flags, the rest are section | |
559 | pointers. */ | |
560 | ||
561 | typedef union elf_internal_group { | |
562 | Elf_Internal_Shdr *shdr; | |
563 | unsigned int flags; | |
564 | } Elf_Internal_Group; | |
565 | ||
b885599b AM |
566 | /* Return the name of the group signature symbol. Why isn't the |
567 | signature just a string? */ | |
568 | ||
569 | static const char * | |
217aa764 | 570 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 571 | { |
9dce4196 | 572 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
573 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
574 | Elf_External_Sym_Shndx eshndx; | |
575 | Elf_Internal_Sym isym; | |
b885599b | 576 | |
13792e9d L |
577 | /* First we need to ensure the symbol table is available. Make sure |
578 | that it is a symbol table section. */ | |
4fbb74a6 AM |
579 | if (ghdr->sh_link >= elf_numsections (abfd)) |
580 | return NULL; | |
13792e9d L |
581 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
582 | if (hdr->sh_type != SHT_SYMTAB | |
583 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
584 | return NULL; |
585 | ||
9dce4196 AM |
586 | /* Go read the symbol. */ |
587 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
588 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
589 | &isym, esym, &eshndx) == NULL) | |
b885599b | 590 | return NULL; |
9dce4196 | 591 | |
26c61ae5 | 592 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
593 | } |
594 | ||
dbb410c3 AM |
595 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
596 | ||
0a1b45a2 | 597 | static bool |
217aa764 | 598 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
599 | { |
600 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
601 | ||
602 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
603 | is set to -1 if there are no SHT_GROUP sections. */ | |
604 | if (num_group == 0) | |
605 | { | |
606 | unsigned int i, shnum; | |
607 | ||
608 | /* First count the number of groups. If we have a SHT_GROUP | |
609 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 610 | shnum = elf_numsections (abfd); |
dbb410c3 | 611 | num_group = 0; |
08a40648 | 612 | |
44534af3 | 613 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 614 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 615 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
616 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
617 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 618 | |
dbb410c3 AM |
619 | for (i = 0; i < shnum; i++) |
620 | { | |
621 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 622 | |
44534af3 | 623 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
624 | num_group += 1; |
625 | } | |
626 | ||
627 | if (num_group == 0) | |
20dbb49d L |
628 | { |
629 | num_group = (unsigned) -1; | |
630 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 631 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
632 | } |
633 | else | |
dbb410c3 AM |
634 | { |
635 | /* We keep a list of elf section headers for group sections, | |
636 | so we can find them quickly. */ | |
1f4361a7 | 637 | size_t amt; |
d0fb9a8d | 638 | |
20dbb49d | 639 | elf_tdata (abfd)->num_group = num_group; |
1f4361a7 AM |
640 | amt = num_group * sizeof (Elf_Internal_Shdr *); |
641 | elf_tdata (abfd)->group_sect_ptr | |
642 | = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
dbb410c3 | 643 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
0a1b45a2 | 644 | return false; |
dbb410c3 | 645 | num_group = 0; |
ce497010 | 646 | |
dbb410c3 AM |
647 | for (i = 0; i < shnum; i++) |
648 | { | |
649 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 650 | |
44534af3 | 651 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 652 | { |
973ffd63 | 653 | unsigned char *src; |
dbb410c3 AM |
654 | Elf_Internal_Group *dest; |
655 | ||
07d6d2b8 AM |
656 | /* Make sure the group section has a BFD section |
657 | attached to it. */ | |
658 | if (!bfd_section_from_shdr (abfd, i)) | |
0a1b45a2 | 659 | return false; |
07d6d2b8 | 660 | |
dbb410c3 AM |
661 | /* Add to list of sections. */ |
662 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
663 | num_group += 1; | |
664 | ||
665 | /* Read the raw contents. */ | |
1f4361a7 AM |
666 | BFD_ASSERT (sizeof (*dest) >= 4 && sizeof (*dest) % 4 == 0); |
667 | shdr->contents = NULL; | |
668 | if (_bfd_mul_overflow (shdr->sh_size, | |
669 | sizeof (*dest) / 4, &amt) | |
1f4361a7 | 670 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 |
2bb3687b AM |
671 | || !(shdr->contents |
672 | = _bfd_alloc_and_read (abfd, amt, shdr->sh_size))) | |
493a3386 NC |
673 | { |
674 | _bfd_error_handler | |
695344c0 | 675 | /* xgettext:c-format */ |
871b3ab2 | 676 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
677 | " header: %#" PRIx64 ""), |
678 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
679 | bfd_set_error (bfd_error_bad_value); |
680 | -- num_group; | |
493a3386 NC |
681 | continue; |
682 | } | |
708d7d0d | 683 | |
dbb410c3 AM |
684 | /* Translate raw contents, a flag word followed by an |
685 | array of elf section indices all in target byte order, | |
686 | to the flag word followed by an array of elf section | |
687 | pointers. */ | |
688 | src = shdr->contents + shdr->sh_size; | |
689 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 690 | |
dbb410c3 AM |
691 | while (1) |
692 | { | |
693 | unsigned int idx; | |
694 | ||
695 | src -= 4; | |
696 | --dest; | |
697 | idx = H_GET_32 (abfd, src); | |
698 | if (src == shdr->contents) | |
699 | { | |
327301a4 | 700 | dest->shdr = NULL; |
dbb410c3 | 701 | dest->flags = idx; |
b885599b AM |
702 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
703 | shdr->bfd_section->flags | |
704 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
705 | break; |
706 | } | |
4bba0fb1 | 707 | if (idx < shnum) |
bae363f1 L |
708 | { |
709 | dest->shdr = elf_elfsections (abfd)[idx]; | |
710 | /* PR binutils/23199: All sections in a | |
711 | section group should be marked with | |
712 | SHF_GROUP. But some tools generate | |
713 | broken objects without SHF_GROUP. Fix | |
714 | them up here. */ | |
715 | dest->shdr->sh_flags |= SHF_GROUP; | |
716 | } | |
4bba0fb1 AM |
717 | if (idx >= shnum |
718 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 719 | { |
4eca0228 | 720 | _bfd_error_handler |
4bba0fb1 AM |
721 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
722 | abfd, i); | |
723 | dest->shdr = NULL; | |
dbb410c3 | 724 | } |
dbb410c3 AM |
725 | } |
726 | } | |
727 | } | |
493a3386 NC |
728 | |
729 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
730 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
731 | { | |
732 | elf_tdata (abfd)->num_group = num_group; | |
733 | ||
734 | /* If all groups are invalid then fail. */ | |
735 | if (num_group == 0) | |
736 | { | |
737 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
738 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 739 | _bfd_error_handler |
871b3ab2 | 740 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
741 | bfd_set_error (bfd_error_bad_value); |
742 | } | |
743 | } | |
dbb410c3 AM |
744 | } |
745 | } | |
746 | ||
747 | if (num_group != (unsigned) -1) | |
748 | { | |
564e11c9 JW |
749 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
750 | unsigned int j; | |
dbb410c3 | 751 | |
564e11c9 | 752 | for (j = 0; j < num_group; j++) |
dbb410c3 | 753 | { |
564e11c9 JW |
754 | /* Begin search from previous found group. */ |
755 | unsigned i = (j + search_offset) % num_group; | |
756 | ||
dbb410c3 | 757 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 758 | Elf_Internal_Group *idx; |
0c54f692 | 759 | bfd_size_type n_elt; |
ce497010 NC |
760 | |
761 | if (shdr == NULL) | |
762 | continue; | |
763 | ||
764 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
765 | if (idx == NULL || shdr->sh_size < 4) |
766 | { | |
767 | /* See PR 21957 for a reproducer. */ | |
768 | /* xgettext:c-format */ | |
871b3ab2 | 769 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
770 | abfd, shdr->bfd_section); |
771 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
772 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 773 | return false; |
0c54f692 | 774 | } |
ce497010 | 775 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
776 | |
777 | /* Look through this group's sections to see if current | |
778 | section is a member. */ | |
779 | while (--n_elt != 0) | |
780 | if ((++idx)->shdr == hdr) | |
781 | { | |
e0e8c97f | 782 | asection *s = NULL; |
dbb410c3 AM |
783 | |
784 | /* We are a member of this group. Go looking through | |
785 | other members to see if any others are linked via | |
786 | next_in_group. */ | |
787 | idx = (Elf_Internal_Group *) shdr->contents; | |
788 | n_elt = shdr->sh_size / 4; | |
789 | while (--n_elt != 0) | |
4bba0fb1 AM |
790 | if ((++idx)->shdr != NULL |
791 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 792 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
793 | break; |
794 | if (n_elt != 0) | |
795 | { | |
dbb410c3 AM |
796 | /* Snarf the group name from other member, and |
797 | insert current section in circular list. */ | |
945906ff AM |
798 | elf_group_name (newsect) = elf_group_name (s); |
799 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
800 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
801 | } |
802 | else | |
803 | { | |
dbb410c3 AM |
804 | const char *gname; |
805 | ||
b885599b AM |
806 | gname = group_signature (abfd, shdr); |
807 | if (gname == NULL) | |
0a1b45a2 | 808 | return false; |
945906ff | 809 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
810 | |
811 | /* Start a circular list with one element. */ | |
945906ff | 812 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 813 | } |
b885599b | 814 | |
9dce4196 AM |
815 | /* If the group section has been created, point to the |
816 | new member. */ | |
dbb410c3 | 817 | if (shdr->bfd_section != NULL) |
945906ff | 818 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 819 | |
564e11c9 JW |
820 | elf_tdata (abfd)->group_search_offset = i; |
821 | j = num_group - 1; | |
dbb410c3 AM |
822 | break; |
823 | } | |
824 | } | |
825 | } | |
826 | ||
945906ff | 827 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 828 | { |
695344c0 | 829 | /* xgettext:c-format */ |
871b3ab2 | 830 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 831 | abfd, newsect); |
0a1b45a2 | 832 | return false; |
dbb410c3 | 833 | } |
0a1b45a2 | 834 | return true; |
dbb410c3 AM |
835 | } |
836 | ||
0a1b45a2 | 837 | bool |
dd863624 | 838 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
839 | { |
840 | unsigned int i; | |
841 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
0a1b45a2 | 842 | bool result = true; |
dd863624 L |
843 | asection *s; |
844 | ||
845 | /* Process SHF_LINK_ORDER. */ | |
846 | for (s = abfd->sections; s != NULL; s = s->next) | |
847 | { | |
848 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
849 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
850 | { | |
851 | unsigned int elfsec = this_hdr->sh_link; | |
b71702f1 NC |
852 | /* An sh_link value of 0 is now allowed. It indicates that linked |
853 | to section has already been discarded, but that the current | |
854 | section has been retained for some other reason. This linking | |
855 | section is still a candidate for later garbage collection | |
856 | however. */ | |
dd863624 L |
857 | if (elfsec == 0) |
858 | { | |
b71702f1 | 859 | elf_linked_to_section (s) = NULL; |
dd863624 L |
860 | } |
861 | else | |
862 | { | |
91d6fa6a | 863 | asection *linksec = NULL; |
25bbc984 | 864 | |
4fbb74a6 AM |
865 | if (elfsec < elf_numsections (abfd)) |
866 | { | |
867 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 868 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 869 | } |
25bbc984 L |
870 | |
871 | /* PR 1991, 2008: | |
872 | Some strip/objcopy may leave an incorrect value in | |
873 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 874 | if (linksec == NULL) |
25bbc984 | 875 | { |
4eca0228 | 876 | _bfd_error_handler |
695344c0 | 877 | /* xgettext:c-format */ |
871b3ab2 | 878 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 879 | s->owner, elfsec, s); |
0a1b45a2 | 880 | result = false; |
25bbc984 L |
881 | } |
882 | ||
91d6fa6a | 883 | elf_linked_to_section (s) = linksec; |
dd863624 L |
884 | } |
885 | } | |
53720c49 AM |
886 | else if (this_hdr->sh_type == SHT_GROUP |
887 | && elf_next_in_group (s) == NULL) | |
888 | { | |
4eca0228 | 889 | _bfd_error_handler |
695344c0 | 890 | /* xgettext:c-format */ |
871b3ab2 | 891 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 | 892 | abfd, elf_section_data (s)->this_idx); |
0a1b45a2 | 893 | result = false; |
53720c49 | 894 | } |
dd863624 | 895 | } |
3d7f7666 | 896 | |
dd863624 | 897 | /* Process section groups. */ |
3d7f7666 L |
898 | if (num_group == (unsigned) -1) |
899 | return result; | |
900 | ||
901 | for (i = 0; i < num_group; i++) | |
902 | { | |
903 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
904 | Elf_Internal_Group *idx; |
905 | unsigned int n_elt; | |
3d7f7666 | 906 | |
4b0e8a5f NC |
907 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
908 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
909 | { | |
4eca0228 | 910 | _bfd_error_handler |
695344c0 | 911 | /* xgettext:c-format */ |
871b3ab2 | 912 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f | 913 | abfd, i); |
0a1b45a2 | 914 | result = false; |
4b0e8a5f NC |
915 | continue; |
916 | } | |
917 | ||
918 | idx = (Elf_Internal_Group *) shdr->contents; | |
919 | n_elt = shdr->sh_size / 4; | |
1b786873 | 920 | |
3d7f7666 | 921 | while (--n_elt != 0) |
24d3e51b NC |
922 | { |
923 | ++ idx; | |
924 | ||
925 | if (idx->shdr == NULL) | |
926 | continue; | |
927 | else if (idx->shdr->bfd_section) | |
928 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
929 | else if (idx->shdr->sh_type != SHT_RELA |
930 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
931 | { |
932 | /* There are some unknown sections in the group. */ | |
933 | _bfd_error_handler | |
934 | /* xgettext:c-format */ | |
871b3ab2 | 935 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
936 | abfd, |
937 | idx->shdr->sh_type, | |
938 | bfd_elf_string_from_elf_section (abfd, | |
939 | (elf_elfheader (abfd) | |
940 | ->e_shstrndx), | |
941 | idx->shdr->sh_name), | |
942 | shdr->bfd_section); | |
0a1b45a2 | 943 | result = false; |
24d3e51b NC |
944 | } |
945 | } | |
3d7f7666 | 946 | } |
24d3e51b | 947 | |
3d7f7666 L |
948 | return result; |
949 | } | |
950 | ||
0a1b45a2 | 951 | bool |
72adc230 AM |
952 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) |
953 | { | |
954 | return elf_next_in_group (sec) != NULL; | |
955 | } | |
956 | ||
cb7f4b29 AM |
957 | const char * |
958 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
959 | { | |
960 | if (elf_sec_group (sec) != NULL) | |
961 | return elf_group_name (sec); | |
962 | return NULL; | |
963 | } | |
964 | ||
f6fe1ccd L |
965 | static char * |
966 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
967 | { | |
968 | unsigned int len = strlen (name); | |
969 | char *new_name = bfd_alloc (abfd, len + 2); | |
970 | if (new_name == NULL) | |
971 | return NULL; | |
972 | new_name[0] = '.'; | |
973 | new_name[1] = 'z'; | |
974 | memcpy (new_name + 2, name + 1, len); | |
975 | return new_name; | |
976 | } | |
977 | ||
978 | static char * | |
979 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
980 | { | |
981 | unsigned int len = strlen (name); | |
982 | char *new_name = bfd_alloc (abfd, len); | |
983 | if (new_name == NULL) | |
984 | return NULL; | |
985 | new_name[0] = '.'; | |
986 | memcpy (new_name + 1, name + 2, len - 1); | |
987 | return new_name; | |
988 | } | |
989 | ||
cc5277b1 ML |
990 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
991 | ||
992 | struct lto_section | |
993 | { | |
994 | int16_t major_version; | |
995 | int16_t minor_version; | |
996 | unsigned char slim_object; | |
997 | ||
998 | /* Flags is a private field that is not defined publicly. */ | |
999 | uint16_t flags; | |
1000 | }; | |
1001 | ||
252b5132 RH |
1002 | /* Make a BFD section from an ELF section. We store a pointer to the |
1003 | BFD section in the bfd_section field of the header. */ | |
1004 | ||
0a1b45a2 | 1005 | bool |
217aa764 AM |
1006 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1007 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1008 | const char *name, |
1009 | int shindex) | |
252b5132 RH |
1010 | { |
1011 | asection *newsect; | |
1012 | flagword flags; | |
9c5bfbb7 | 1013 | const struct elf_backend_data *bed; |
502794d4 | 1014 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
1015 | |
1016 | if (hdr->bfd_section != NULL) | |
0a1b45a2 | 1017 | return true; |
252b5132 RH |
1018 | |
1019 | newsect = bfd_make_section_anyway (abfd, name); | |
1020 | if (newsect == NULL) | |
0a1b45a2 | 1021 | return false; |
252b5132 | 1022 | |
1829f4b2 AM |
1023 | hdr->bfd_section = newsect; |
1024 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1025 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1026 | |
2f89ff8d L |
1027 | /* Always use the real type/flags. */ |
1028 | elf_section_type (newsect) = hdr->sh_type; | |
1029 | elf_section_flags (newsect) = hdr->sh_flags; | |
1030 | ||
252b5132 RH |
1031 | newsect->filepos = hdr->sh_offset; |
1032 | ||
252b5132 RH |
1033 | flags = SEC_NO_FLAGS; |
1034 | if (hdr->sh_type != SHT_NOBITS) | |
1035 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1036 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1037 | flags |= SEC_GROUP; |
252b5132 RH |
1038 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1039 | { | |
1040 | flags |= SEC_ALLOC; | |
1041 | if (hdr->sh_type != SHT_NOBITS) | |
1042 | flags |= SEC_LOAD; | |
1043 | } | |
1044 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1045 | flags |= SEC_READONLY; | |
1046 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1047 | flags |= SEC_CODE; | |
1048 | else if ((flags & SEC_LOAD) != 0) | |
1049 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1050 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1051 | { | |
1052 | flags |= SEC_MERGE; | |
1053 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1054 | } |
84865015 NC |
1055 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1056 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1057 | if (hdr->sh_flags & SHF_GROUP) |
1058 | if (!setup_group (abfd, hdr, newsect)) | |
0a1b45a2 | 1059 | return false; |
13ae64f3 JJ |
1060 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1061 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1062 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1063 | flags |= SEC_EXCLUDE; | |
252b5132 | 1064 | |
df3a023b AM |
1065 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1066 | { | |
1067 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1068 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1069 | byte. */ | |
df3a023b AM |
1070 | case ELFOSABI_GNU: |
1071 | case ELFOSABI_FREEBSD: | |
99fabbc9 JL |
1072 | if ((hdr->sh_flags & SHF_GNU_RETAIN) != 0) |
1073 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_retain; | |
1074 | /* Fall through */ | |
1075 | case ELFOSABI_NONE: | |
df3a023b AM |
1076 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) |
1077 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1078 | break; | |
1079 | } | |
1080 | ||
3d2b39cf | 1081 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1082 | { |
3d2b39cf L |
1083 | /* The debugging sections appear to be recognized only by name, |
1084 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1085 | if (name [0] == '.') |
1086 | { | |
3f3328b8 ML |
1087 | if (startswith (name, ".debug") |
1088 | || startswith (name, ".gnu.debuglto_.debug_") | |
1089 | || startswith (name, ".gnu.linkonce.wi.") | |
1090 | || startswith (name, ".zdebug")) | |
bb294208 | 1091 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; |
3f3328b8 ML |
1092 | else if (startswith (name, GNU_BUILD_ATTRS_SECTION_NAME) |
1093 | || startswith (name, ".note.gnu")) | |
502794d4 CE |
1094 | { |
1095 | flags |= SEC_ELF_OCTETS; | |
1096 | opb = 1; | |
1097 | } | |
3f3328b8 ML |
1098 | else if (startswith (name, ".line") |
1099 | || startswith (name, ".stab") | |
bb294208 | 1100 | || strcmp (name, ".gdb_index") == 0) |
3d2b39cf L |
1101 | flags |= SEC_DEBUGGING; |
1102 | } | |
1103 | } | |
252b5132 | 1104 | |
502794d4 CE |
1105 | if (!bfd_set_section_vma (newsect, hdr->sh_addr / opb) |
1106 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1f9b1a84 AM |
1107 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign |
1108 | & -hdr->sh_addralign))) | |
0a1b45a2 | 1109 | return false; |
502794d4 | 1110 | |
252b5132 RH |
1111 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
1112 | only link a single copy of the section. This is used to support | |
1113 | g++. g++ will emit each template expansion in its own section. | |
1114 | The symbols will be defined as weak, so that multiple definitions | |
1115 | are permitted. The GNU linker extension is to actually discard | |
1116 | all but one of the sections. */ | |
08dedd66 | 1117 | if (startswith (name, ".gnu.linkonce") |
b885599b | 1118 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1119 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1120 | ||
8c803a2d | 1121 | if (!bfd_set_section_flags (newsect, flags)) |
0a1b45a2 | 1122 | return false; |
8c803a2d | 1123 | |
fa152c49 JW |
1124 | bed = get_elf_backend_data (abfd); |
1125 | if (bed->elf_backend_section_flags) | |
8c803a2d | 1126 | if (!bed->elf_backend_section_flags (hdr)) |
0a1b45a2 | 1127 | return false; |
fa152c49 | 1128 | |
718175fa JK |
1129 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1130 | separate debug info files which may have the segments offsets corrupted. | |
1131 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1132 | if (hdr->sh_type == SHT_NOTE) | |
1133 | { | |
baea7ef1 | 1134 | bfd_byte *contents; |
718175fa | 1135 | |
baea7ef1 | 1136 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
0a1b45a2 | 1137 | return false; |
718175fa | 1138 | |
276da9b3 L |
1139 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1140 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1141 | free (contents); |
1142 | } | |
1143 | ||
8c803a2d | 1144 | if ((newsect->flags & SEC_ALLOC) != 0) |
252b5132 RH |
1145 | { |
1146 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1147 | unsigned int i, nload; |
1148 | ||
1149 | /* Some ELF linkers produce binaries with all the program header | |
1150 | p_paddr fields zero. If we have such a binary with more than | |
1151 | one PT_LOAD header, then leave the section lma equal to vma | |
1152 | so that we don't create sections with overlapping lma. */ | |
1153 | phdr = elf_tdata (abfd)->phdr; | |
1154 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1155 | if (phdr->p_paddr != 0) | |
1156 | break; | |
1157 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1158 | ++nload; | |
1159 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
0a1b45a2 | 1160 | return true; |
252b5132 | 1161 | |
252b5132 RH |
1162 | phdr = elf_tdata (abfd)->phdr; |
1163 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1164 | { | |
86b2281f AM |
1165 | if (((phdr->p_type == PT_LOAD |
1166 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1167 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1168 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1169 | { |
8c803a2d | 1170 | if ((newsect->flags & SEC_LOAD) == 0) |
88967714 | 1171 | newsect->lma = (phdr->p_paddr |
502794d4 | 1172 | + hdr->sh_addr - phdr->p_vaddr) / opb; |
88967714 AM |
1173 | else |
1174 | /* We used to use the same adjustment for SEC_LOAD | |
1175 | sections, but that doesn't work if the segment | |
1176 | is packed with code from multiple VMAs. | |
1177 | Instead we calculate the section LMA based on | |
1178 | the segment LMA. It is assumed that the | |
1179 | segment will contain sections with contiguous | |
1180 | LMAs, even if the VMAs are not. */ | |
1181 | newsect->lma = (phdr->p_paddr | |
502794d4 | 1182 | + hdr->sh_offset - phdr->p_offset) / opb; |
88967714 AM |
1183 | |
1184 | /* With contiguous segments, we can't tell from file | |
1185 | offsets whether a section with zero size should | |
1186 | be placed at the end of one segment or the | |
1187 | beginning of the next. Decide based on vaddr. */ | |
1188 | if (hdr->sh_addr >= phdr->p_vaddr | |
1189 | && (hdr->sh_addr + hdr->sh_size | |
1190 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1191 | break; | |
252b5132 RH |
1192 | } |
1193 | } | |
1194 | } | |
1195 | ||
4a114e3e L |
1196 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1197 | .zdebug_*, after the section flags is set. */ | |
8c803a2d | 1198 | if ((newsect->flags & SEC_DEBUGGING) |
4a114e3e L |
1199 | && ((name[1] == 'd' && name[6] == '_') |
1200 | || (name[1] == 'z' && name[7] == '_'))) | |
1201 | { | |
1202 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1203 | int compression_header_size; |
dab394de | 1204 | bfd_size_type uncompressed_size; |
4207142d | 1205 | unsigned int uncompressed_align_power; |
0a1b45a2 | 1206 | bool compressed |
151411f8 | 1207 | = bfd_is_section_compressed_with_header (abfd, newsect, |
dab394de | 1208 | &compression_header_size, |
4207142d MW |
1209 | &uncompressed_size, |
1210 | &uncompressed_align_power); | |
151411f8 | 1211 | if (compressed) |
4a114e3e L |
1212 | { |
1213 | /* Compressed section. Check if we should decompress. */ | |
1214 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1215 | action = decompress; | |
1216 | } | |
151411f8 L |
1217 | |
1218 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1219 | section. Check if we should compress. */ | |
1220 | if (action == nothing) | |
4a114e3e | 1221 | { |
151411f8 L |
1222 | if (newsect->size != 0 |
1223 | && (abfd->flags & BFD_COMPRESS) | |
1224 | && compression_header_size >= 0 | |
dab394de | 1225 | && uncompressed_size > 0 |
151411f8 L |
1226 | && (!compressed |
1227 | || ((compression_header_size > 0) | |
1228 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1229 | action = compress; |
151411f8 | 1230 | else |
0a1b45a2 | 1231 | return true; |
4a114e3e L |
1232 | } |
1233 | ||
151411f8 | 1234 | if (action == compress) |
4a114e3e | 1235 | { |
4a114e3e L |
1236 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1237 | { | |
4eca0228 | 1238 | _bfd_error_handler |
695344c0 | 1239 | /* xgettext:c-format */ |
871b3ab2 | 1240 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e | 1241 | abfd, name); |
0a1b45a2 | 1242 | return false; |
4a114e3e | 1243 | } |
151411f8 L |
1244 | } |
1245 | else | |
1246 | { | |
4a114e3e L |
1247 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1248 | { | |
4eca0228 | 1249 | _bfd_error_handler |
695344c0 | 1250 | /* xgettext:c-format */ |
871b3ab2 | 1251 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e | 1252 | abfd, name); |
0a1b45a2 | 1253 | return false; |
4a114e3e | 1254 | } |
151411f8 L |
1255 | } |
1256 | ||
f6fe1ccd | 1257 | if (abfd->is_linker_input) |
151411f8 | 1258 | { |
f6fe1ccd L |
1259 | if (name[1] == 'z' |
1260 | && (action == decompress | |
1261 | || (action == compress | |
1262 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1263 | { |
f6fe1ccd L |
1264 | /* Convert section name from .zdebug_* to .debug_* so |
1265 | that linker will consider this section as a debug | |
1266 | section. */ | |
1267 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 | 1268 | if (new_name == NULL) |
0a1b45a2 | 1269 | return false; |
fd361982 | 1270 | bfd_rename_section (newsect, new_name); |
151411f8 | 1271 | } |
4a114e3e | 1272 | } |
f6fe1ccd L |
1273 | else |
1274 | /* For objdump, don't rename the section. For objcopy, delay | |
1275 | section rename to elf_fake_sections. */ | |
1276 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1277 | } |
1278 | ||
cc5277b1 ML |
1279 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1280 | section. */ | |
3f3328b8 | 1281 | if (startswith (name, ".gnu.lto_.lto.")) |
cc5277b1 ML |
1282 | { |
1283 | struct lto_section lsection; | |
1284 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1285 | sizeof (struct lto_section))) | |
1286 | abfd->lto_slim_object = lsection.slim_object; | |
1287 | } | |
1288 | ||
0a1b45a2 | 1289 | return true; |
252b5132 RH |
1290 | } |
1291 | ||
84865015 NC |
1292 | const char *const bfd_elf_section_type_names[] = |
1293 | { | |
252b5132 RH |
1294 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1295 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1296 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1297 | }; | |
1298 | ||
1049f94e | 1299 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1300 | output, and the reloc is against an external symbol, and nothing |
1301 | has given us any additional addend, the resulting reloc will also | |
1302 | be against the same symbol. In such a case, we don't want to | |
1303 | change anything about the way the reloc is handled, since it will | |
1304 | all be done at final link time. Rather than put special case code | |
1305 | into bfd_perform_relocation, all the reloc types use this howto | |
2dfa8341 | 1306 | function, or should call this function for relocatable output. */ |
252b5132 | 1307 | |
252b5132 | 1308 | bfd_reloc_status_type |
217aa764 AM |
1309 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1310 | arelent *reloc_entry, | |
1311 | asymbol *symbol, | |
1312 | void *data ATTRIBUTE_UNUSED, | |
1313 | asection *input_section, | |
1314 | bfd *output_bfd, | |
1315 | char **error_message ATTRIBUTE_UNUSED) | |
1316 | { | |
1317 | if (output_bfd != NULL | |
252b5132 RH |
1318 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1319 | && (! reloc_entry->howto->partial_inplace | |
1320 | || reloc_entry->addend == 0)) | |
1321 | { | |
1322 | reloc_entry->address += input_section->output_offset; | |
1323 | return bfd_reloc_ok; | |
1324 | } | |
1325 | ||
2dfa8341 AM |
1326 | /* In some cases the relocation should be treated as output section |
1327 | relative, as when linking ELF DWARF into PE COFF. Many ELF | |
1328 | targets lack section relative relocations and instead use | |
1329 | ordinary absolute relocations for references between DWARF | |
1330 | sections. That is arguably a bug in those targets but it happens | |
1331 | to work for the usual case of linking to non-loaded ELF debug | |
1332 | sections with VMAs forced to zero. PE COFF on the other hand | |
1333 | doesn't allow a section VMA of zero. */ | |
1334 | if (output_bfd == NULL | |
1335 | && !reloc_entry->howto->pc_relative | |
1336 | && (symbol->section->flags & SEC_DEBUGGING) != 0 | |
1337 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
1338 | reloc_entry->addend -= symbol->section->output_section->vma; | |
1339 | ||
252b5132 RH |
1340 | return bfd_reloc_continue; |
1341 | } | |
1342 | \f | |
84865015 NC |
1343 | /* Returns TRUE if section A matches section B. |
1344 | Names, addresses and links may be different, but everything else | |
1345 | should be the same. */ | |
1346 | ||
0a1b45a2 | 1347 | static bool |
5522f910 NC |
1348 | section_match (const Elf_Internal_Shdr * a, |
1349 | const Elf_Internal_Shdr * b) | |
84865015 | 1350 | { |
ac85e67c AM |
1351 | if (a->sh_type != b->sh_type |
1352 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1353 | || a->sh_addralign != b->sh_addralign | |
1354 | || a->sh_entsize != b->sh_entsize) | |
0a1b45a2 | 1355 | return false; |
ac85e67c AM |
1356 | if (a->sh_type == SHT_SYMTAB |
1357 | || a->sh_type == SHT_STRTAB) | |
0a1b45a2 | 1358 | return true; |
ac85e67c | 1359 | return a->sh_size == b->sh_size; |
84865015 NC |
1360 | } |
1361 | ||
1362 | /* Find a section in OBFD that has the same characteristics | |
1363 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1364 | none can be found. Check's section HINT first, as this is likely | |
1365 | to be the correct section. */ | |
1366 | ||
1367 | static unsigned int | |
5cc4ca83 ST |
1368 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1369 | const unsigned int hint) | |
84865015 NC |
1370 | { |
1371 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1372 | unsigned int i; | |
1373 | ||
a55c9876 NC |
1374 | BFD_ASSERT (iheader != NULL); |
1375 | ||
1376 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1377 | if (hint < elf_numsections (obfd) |
1378 | && oheaders[hint] != NULL | |
a55c9876 | 1379 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1380 | return hint; |
1381 | ||
1382 | for (i = 1; i < elf_numsections (obfd); i++) | |
1383 | { | |
1384 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1385 | ||
a55c9876 NC |
1386 | if (oheader == NULL) |
1387 | continue; | |
84865015 NC |
1388 | if (section_match (oheader, iheader)) |
1389 | /* FIXME: Do we care if there is a potential for | |
1390 | multiple matches ? */ | |
1391 | return i; | |
1392 | } | |
1393 | ||
1394 | return SHN_UNDEF; | |
1395 | } | |
1396 | ||
5522f910 NC |
1397 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1398 | Processor specific section, based upon a matching input section. | |
1399 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1400 | |
0a1b45a2 | 1401 | static bool |
5522f910 NC |
1402 | copy_special_section_fields (const bfd *ibfd, |
1403 | bfd *obfd, | |
1404 | const Elf_Internal_Shdr *iheader, | |
1405 | Elf_Internal_Shdr *oheader, | |
1406 | const unsigned int secnum) | |
1407 | { | |
1408 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1409 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
0a1b45a2 | 1410 | bool changed = false; |
5522f910 NC |
1411 | unsigned int sh_link; |
1412 | ||
1413 | if (oheader->sh_type == SHT_NOBITS) | |
1414 | { | |
1415 | /* This is a feature for objcopy --only-keep-debug: | |
1416 | When a section's type is changed to NOBITS, we preserve | |
1417 | the sh_link and sh_info fields so that they can be | |
1418 | matched up with the original. | |
1419 | ||
1420 | Note: Strictly speaking these assignments are wrong. | |
1421 | The sh_link and sh_info fields should point to the | |
1422 | relevent sections in the output BFD, which may not be in | |
1423 | the same location as they were in the input BFD. But | |
1424 | the whole point of this action is to preserve the | |
1425 | original values of the sh_link and sh_info fields, so | |
1426 | that they can be matched up with the section headers in | |
1427 | the original file. So strictly speaking we may be | |
1428 | creating an invalid ELF file, but it is only for a file | |
1429 | that just contains debug info and only for sections | |
1430 | without any contents. */ | |
1431 | if (oheader->sh_link == 0) | |
1432 | oheader->sh_link = iheader->sh_link; | |
1433 | if (oheader->sh_info == 0) | |
1434 | oheader->sh_info = iheader->sh_info; | |
0a1b45a2 | 1435 | return true; |
5522f910 NC |
1436 | } |
1437 | ||
1438 | /* Allow the target a chance to decide how these fields should be set. */ | |
a859124d AM |
1439 | if (bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1440 | iheader, oheader)) | |
0a1b45a2 | 1441 | return true; |
5522f910 NC |
1442 | |
1443 | /* We have an iheader which might match oheader, and which has non-zero | |
1444 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1445 | the section in the output bfd which corresponds to the linked section | |
1446 | in the input bfd. */ | |
1447 | if (iheader->sh_link != SHN_UNDEF) | |
1448 | { | |
4f3ca05b NC |
1449 | /* See PR 20931 for a reproducer. */ |
1450 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1451 | { | |
76cfced5 | 1452 | _bfd_error_handler |
4f3ca05b | 1453 | /* xgettext:c-format */ |
9793eb77 | 1454 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b | 1455 | ibfd, iheader->sh_link, secnum); |
0a1b45a2 | 1456 | return false; |
4f3ca05b NC |
1457 | } |
1458 | ||
5522f910 NC |
1459 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1460 | if (sh_link != SHN_UNDEF) | |
1461 | { | |
1462 | oheader->sh_link = sh_link; | |
0a1b45a2 | 1463 | changed = true; |
5522f910 NC |
1464 | } |
1465 | else | |
1466 | /* FIXME: Should we install iheader->sh_link | |
1467 | if we could not find a match ? */ | |
76cfced5 | 1468 | _bfd_error_handler |
695344c0 | 1469 | /* xgettext:c-format */ |
9793eb77 | 1470 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1471 | } |
1472 | ||
1473 | if (iheader->sh_info) | |
1474 | { | |
1475 | /* The sh_info field can hold arbitrary information, but if the | |
1476 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1477 | section index. */ | |
1478 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1479 | { | |
1480 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1481 | iheader->sh_info); | |
1482 | if (sh_link != SHN_UNDEF) | |
1483 | oheader->sh_flags |= SHF_INFO_LINK; | |
1484 | } | |
1485 | else | |
1486 | /* No idea what it means - just copy it. */ | |
1487 | sh_link = iheader->sh_info; | |
1488 | ||
1489 | if (sh_link != SHN_UNDEF) | |
1490 | { | |
1491 | oheader->sh_info = sh_link; | |
0a1b45a2 | 1492 | changed = true; |
5522f910 NC |
1493 | } |
1494 | else | |
76cfced5 | 1495 | _bfd_error_handler |
695344c0 | 1496 | /* xgettext:c-format */ |
9793eb77 | 1497 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1498 | } |
1499 | ||
1500 | return changed; | |
1501 | } | |
07d6d2b8 | 1502 | |
0ac4564e L |
1503 | /* Copy the program header and other data from one object module to |
1504 | another. */ | |
252b5132 | 1505 | |
0a1b45a2 | 1506 | bool |
217aa764 | 1507 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1508 | { |
5522f910 NC |
1509 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1510 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1511 | const struct elf_backend_data *bed; | |
84865015 NC |
1512 | unsigned int i; |
1513 | ||
2d502050 | 1514 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1515 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
0a1b45a2 | 1516 | return true; |
2d502050 | 1517 | |
57b828ef L |
1518 | if (!elf_flags_init (obfd)) |
1519 | { | |
1520 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
0a1b45a2 | 1521 | elf_flags_init (obfd) = true; |
57b828ef | 1522 | } |
2d502050 | 1523 | |
0ac4564e | 1524 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1525 | |
1526 | /* Also copy the EI_OSABI field. */ | |
1527 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1528 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1529 | |
5522f910 NC |
1530 | /* If set, copy the EI_ABIVERSION field. */ |
1531 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1532 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1533 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1534 | |
104d59d1 JM |
1535 | /* Copy object attributes. */ |
1536 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1537 | |
84865015 | 1538 | if (iheaders == NULL || oheaders == NULL) |
0a1b45a2 | 1539 | return true; |
63b9bbb7 | 1540 | |
5522f910 NC |
1541 | bed = get_elf_backend_data (obfd); |
1542 | ||
1543 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1544 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1545 | { |
84865015 NC |
1546 | unsigned int j; |
1547 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1548 | |
5522f910 NC |
1549 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1550 | because of a special case need for generating separate debug info | |
1551 | files. See below for more details. */ | |
84865015 NC |
1552 | if (oheader == NULL |
1553 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1554 | && oheader->sh_type < SHT_LOOS)) |
1555 | continue; | |
1556 | ||
1557 | /* Ignore empty sections, and sections whose | |
1558 | fields have already been initialised. */ | |
1559 | if (oheader->sh_size == 0 | |
84865015 NC |
1560 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1561 | continue; | |
63b9bbb7 | 1562 | |
84865015 | 1563 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1564 | First we try for a direct mapping between the input and output sections. */ |
1565 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1566 | { | |
1567 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1568 | ||
1569 | if (iheader == NULL) | |
1570 | continue; | |
1571 | ||
1572 | if (oheader->bfd_section != NULL | |
1573 | && iheader->bfd_section != NULL | |
1574 | && iheader->bfd_section->output_section != NULL | |
1575 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1576 | { | |
1577 | /* We have found a connection from the input section to the | |
1578 | output section. Attempt to copy the header fields. If | |
1579 | this fails then do not try any further sections - there | |
1580 | should only be a one-to-one mapping between input and output. */ | |
1581 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1582 | j = elf_numsections (ibfd); | |
1583 | break; | |
1584 | } | |
1585 | } | |
1586 | ||
1587 | if (j < elf_numsections (ibfd)) | |
1588 | continue; | |
1589 | ||
1590 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1591 | Unfortunately we cannot compare names as the output string table |
1592 | is empty, so instead we check size, address and type. */ | |
1593 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1594 | { | |
5522f910 | 1595 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1596 | |
5522f910 NC |
1597 | if (iheader == NULL) |
1598 | continue; | |
1599 | ||
1600 | /* Try matching fields in the input section's header. | |
1601 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1602 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1603 | input type. */ | |
1604 | if ((oheader->sh_type == SHT_NOBITS | |
1605 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1606 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1607 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1608 | && iheader->sh_addralign == oheader->sh_addralign |
1609 | && iheader->sh_entsize == oheader->sh_entsize | |
1610 | && iheader->sh_size == oheader->sh_size | |
1611 | && iheader->sh_addr == oheader->sh_addr | |
1612 | && (iheader->sh_info != oheader->sh_info | |
1613 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1614 | { |
5522f910 NC |
1615 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1616 | break; | |
63b9bbb7 NC |
1617 | } |
1618 | } | |
5522f910 NC |
1619 | |
1620 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1621 | { | |
1622 | /* Final attempt. Call the backend copy function | |
1623 | with a NULL input section. */ | |
a859124d AM |
1624 | (void) bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1625 | NULL, oheader); | |
5522f910 | 1626 | } |
63b9bbb7 NC |
1627 | } |
1628 | ||
0a1b45a2 | 1629 | return true; |
2d502050 L |
1630 | } |
1631 | ||
cedc298e L |
1632 | static const char * |
1633 | get_segment_type (unsigned int p_type) | |
1634 | { | |
1635 | const char *pt; | |
1636 | switch (p_type) | |
1637 | { | |
1638 | case PT_NULL: pt = "NULL"; break; | |
1639 | case PT_LOAD: pt = "LOAD"; break; | |
1640 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1641 | case PT_INTERP: pt = "INTERP"; break; | |
1642 | case PT_NOTE: pt = "NOTE"; break; | |
1643 | case PT_SHLIB: pt = "SHLIB"; break; | |
1644 | case PT_PHDR: pt = "PHDR"; break; | |
1645 | case PT_TLS: pt = "TLS"; break; | |
1646 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1647 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1648 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1649 | default: pt = NULL; break; | |
1650 | } | |
1651 | return pt; | |
1652 | } | |
1653 | ||
f0b79d91 L |
1654 | /* Print out the program headers. */ |
1655 | ||
0a1b45a2 | 1656 | bool |
217aa764 | 1657 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1658 | { |
a50b1753 | 1659 | FILE *f = (FILE *) farg; |
252b5132 RH |
1660 | Elf_Internal_Phdr *p; |
1661 | asection *s; | |
1662 | bfd_byte *dynbuf = NULL; | |
1663 | ||
1664 | p = elf_tdata (abfd)->phdr; | |
1665 | if (p != NULL) | |
1666 | { | |
1667 | unsigned int i, c; | |
1668 | ||
1669 | fprintf (f, _("\nProgram Header:\n")); | |
1670 | c = elf_elfheader (abfd)->e_phnum; | |
1671 | for (i = 0; i < c; i++, p++) | |
1672 | { | |
cedc298e | 1673 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1674 | char buf[20]; |
1675 | ||
cedc298e | 1676 | if (pt == NULL) |
252b5132 | 1677 | { |
cedc298e L |
1678 | sprintf (buf, "0x%lx", p->p_type); |
1679 | pt = buf; | |
252b5132 | 1680 | } |
dc810e39 | 1681 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1682 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1683 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1684 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1685 | fprintf (f, " paddr 0x"); |
60b89a18 | 1686 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1687 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1688 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1689 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1690 | fprintf (f, " memsz 0x"); |
60b89a18 | 1691 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1692 | fprintf (f, " flags %c%c%c", |
1693 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1694 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1695 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1696 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1697 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1698 | fprintf (f, "\n"); |
1699 | } | |
1700 | } | |
1701 | ||
1702 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1703 | if (s != NULL) | |
1704 | { | |
cb33740c | 1705 | unsigned int elfsec; |
dc810e39 | 1706 | unsigned long shlink; |
252b5132 RH |
1707 | bfd_byte *extdyn, *extdynend; |
1708 | size_t extdynsize; | |
217aa764 | 1709 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1710 | |
1711 | fprintf (f, _("\nDynamic Section:\n")); | |
1712 | ||
eea6121a | 1713 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1714 | goto error_return; |
1715 | ||
1716 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1717 | if (elfsec == SHN_BAD) |
252b5132 | 1718 | goto error_return; |
dc810e39 | 1719 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1720 | |
1721 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1722 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1723 | ||
1724 | extdyn = dynbuf; | |
06614111 NC |
1725 | /* PR 17512: file: 6f427532. */ |
1726 | if (s->size < extdynsize) | |
1727 | goto error_return; | |
eea6121a | 1728 | extdynend = extdyn + s->size; |
1036838a | 1729 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1730 | Fix range check. */ |
1036838a | 1731 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1732 | { |
1733 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1734 | const char *name = ""; |
252b5132 | 1735 | char ab[20]; |
0a1b45a2 | 1736 | bool stringp; |
ad9563d6 | 1737 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1738 | |
217aa764 | 1739 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1740 | |
1741 | if (dyn.d_tag == DT_NULL) | |
1742 | break; | |
1743 | ||
0a1b45a2 | 1744 | stringp = false; |
252b5132 RH |
1745 | switch (dyn.d_tag) |
1746 | { | |
1747 | default: | |
ad9563d6 CM |
1748 | if (bed->elf_backend_get_target_dtag) |
1749 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1750 | ||
1751 | if (!strcmp (name, "")) | |
1752 | { | |
cd9af601 | 1753 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1754 | name = ab; |
1755 | } | |
252b5132 RH |
1756 | break; |
1757 | ||
0a1b45a2 | 1758 | case DT_NEEDED: name = "NEEDED"; stringp = true; break; |
252b5132 RH |
1759 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1760 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1761 | case DT_HASH: name = "HASH"; break; | |
1762 | case DT_STRTAB: name = "STRTAB"; break; | |
1763 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1764 | case DT_RELA: name = "RELA"; break; | |
1765 | case DT_RELASZ: name = "RELASZ"; break; | |
1766 | case DT_RELAENT: name = "RELAENT"; break; | |
1767 | case DT_STRSZ: name = "STRSZ"; break; | |
1768 | case DT_SYMENT: name = "SYMENT"; break; | |
1769 | case DT_INIT: name = "INIT"; break; | |
1770 | case DT_FINI: name = "FINI"; break; | |
0a1b45a2 AM |
1771 | case DT_SONAME: name = "SONAME"; stringp = true; break; |
1772 | case DT_RPATH: name = "RPATH"; stringp = true; break; | |
252b5132 RH |
1773 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1774 | case DT_REL: name = "REL"; break; | |
1775 | case DT_RELSZ: name = "RELSZ"; break; | |
1776 | case DT_RELENT: name = "RELENT"; break; | |
dd207c13 FS |
1777 | case DT_RELR: name = "RELR"; break; |
1778 | case DT_RELRSZ: name = "RELRSZ"; break; | |
1779 | case DT_RELRENT: name = "RELRENT"; break; | |
252b5132 RH |
1780 | case DT_PLTREL: name = "PLTREL"; break; |
1781 | case DT_DEBUG: name = "DEBUG"; break; | |
1782 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1783 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1784 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1785 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1786 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1787 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1788 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
0a1b45a2 | 1789 | case DT_RUNPATH: name = "RUNPATH"; stringp = true; break; |
94558834 L |
1790 | case DT_FLAGS: name = "FLAGS"; break; |
1791 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1792 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1793 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1794 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1795 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1796 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1797 | case DT_FEATURE: name = "FEATURE"; break; | |
1798 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1799 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1800 | case DT_SYMINENT: name = "SYMINENT"; break; | |
0a1b45a2 AM |
1801 | case DT_CONFIG: name = "CONFIG"; stringp = true; break; |
1802 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = true; break; | |
1803 | case DT_AUDIT: name = "AUDIT"; stringp = true; break; | |
94558834 L |
1804 | case DT_PLTPAD: name = "PLTPAD"; break; |
1805 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1806 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1807 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1808 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1809 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1810 | case DT_VERSYM: name = "VERSYM"; break; |
1811 | case DT_VERDEF: name = "VERDEF"; break; | |
1812 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1813 | case DT_VERNEED: name = "VERNEED"; break; | |
1814 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
0a1b45a2 | 1815 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = true; break; |
94558834 | 1816 | case DT_USED: name = "USED"; break; |
0a1b45a2 | 1817 | case DT_FILTER: name = "FILTER"; stringp = true; break; |
fdc90cb4 | 1818 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1819 | } |
1820 | ||
ad9563d6 | 1821 | fprintf (f, " %-20s ", name); |
252b5132 | 1822 | if (! stringp) |
a1f3c56e AN |
1823 | { |
1824 | fprintf (f, "0x"); | |
1825 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1826 | } | |
252b5132 RH |
1827 | else |
1828 | { | |
1829 | const char *string; | |
dc810e39 | 1830 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1831 | |
dc810e39 | 1832 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1833 | if (string == NULL) |
1834 | goto error_return; | |
1835 | fprintf (f, "%s", string); | |
1836 | } | |
1837 | fprintf (f, "\n"); | |
1838 | } | |
1839 | ||
1840 | free (dynbuf); | |
1841 | dynbuf = NULL; | |
1842 | } | |
1843 | ||
1844 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1845 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1846 | { | |
0a1b45a2 AM |
1847 | if (! _bfd_elf_slurp_version_tables (abfd, false)) |
1848 | return false; | |
252b5132 RH |
1849 | } |
1850 | ||
1851 | if (elf_dynverdef (abfd) != 0) | |
1852 | { | |
1853 | Elf_Internal_Verdef *t; | |
1854 | ||
1855 | fprintf (f, _("\nVersion definitions:\n")); | |
1856 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1857 | { | |
1858 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1859 | t->vd_flags, t->vd_hash, |
1860 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1861 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1862 | { |
1863 | Elf_Internal_Verdaux *a; | |
1864 | ||
1865 | fprintf (f, "\t"); | |
1866 | for (a = t->vd_auxptr->vda_nextptr; | |
1867 | a != NULL; | |
1868 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1869 | fprintf (f, "%s ", |
1870 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1871 | fprintf (f, "\n"); |
1872 | } | |
1873 | } | |
1874 | } | |
1875 | ||
1876 | if (elf_dynverref (abfd) != 0) | |
1877 | { | |
1878 | Elf_Internal_Verneed *t; | |
1879 | ||
1880 | fprintf (f, _("\nVersion References:\n")); | |
1881 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1882 | { | |
1883 | Elf_Internal_Vernaux *a; | |
1884 | ||
d0fb9a8d JJ |
1885 | fprintf (f, _(" required from %s:\n"), |
1886 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1887 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1888 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1889 | a->vna_flags, a->vna_other, |
1890 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1891 | } |
1892 | } | |
1893 | ||
0a1b45a2 | 1894 | return true; |
252b5132 RH |
1895 | |
1896 | error_return: | |
c9594989 | 1897 | free (dynbuf); |
0a1b45a2 | 1898 | return false; |
252b5132 RH |
1899 | } |
1900 | ||
7e6e972f L |
1901 | /* Get version name. If BASE_P is TRUE, return "Base" for VER_FLG_BASE |
1902 | and return symbol version for symbol version itself. */ | |
bb4d2ac2 L |
1903 | |
1904 | const char * | |
1081065c | 1905 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
0a1b45a2 AM |
1906 | bool base_p, |
1907 | bool *hidden) | |
bb4d2ac2 L |
1908 | { |
1909 | const char *version_string = NULL; | |
1910 | if (elf_dynversym (abfd) != 0 | |
1911 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1912 | { | |
1913 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1914 | ||
1915 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1916 | vernum &= VERSYM_VERSION; | |
1917 | ||
1918 | if (vernum == 0) | |
1919 | version_string = ""; | |
1f6f5dba L |
1920 | else if (vernum == 1 |
1921 | && (vernum > elf_tdata (abfd)->cverdefs | |
1922 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1923 | == VER_FLG_BASE))) | |
7e6e972f | 1924 | version_string = base_p ? "Base" : ""; |
bb4d2ac2 | 1925 | else if (vernum <= elf_tdata (abfd)->cverdefs) |
7e6e972f L |
1926 | { |
1927 | const char *nodename | |
1928 | = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
8d55d10a AM |
1929 | version_string = ""; |
1930 | if (base_p | |
1931 | || nodename == NULL | |
1932 | || symbol->name == NULL | |
1933 | || strcmp (symbol->name, nodename) != 0) | |
1934 | version_string = nodename; | |
7e6e972f | 1935 | } |
bb4d2ac2 L |
1936 | else |
1937 | { | |
1938 | Elf_Internal_Verneed *t; | |
1939 | ||
7a815dd5 | 1940 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1941 | for (t = elf_tdata (abfd)->verref; |
1942 | t != NULL; | |
1943 | t = t->vn_nextref) | |
1944 | { | |
1945 | Elf_Internal_Vernaux *a; | |
1946 | ||
1947 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1948 | { | |
1949 | if (a->vna_other == vernum) | |
1950 | { | |
f897689c | 1951 | *hidden = true; |
bb4d2ac2 L |
1952 | version_string = a->vna_nodename; |
1953 | break; | |
1954 | } | |
1955 | } | |
1956 | } | |
1957 | } | |
1958 | } | |
1959 | return version_string; | |
1960 | } | |
1961 | ||
252b5132 RH |
1962 | /* Display ELF-specific fields of a symbol. */ |
1963 | ||
1964 | void | |
217aa764 AM |
1965 | bfd_elf_print_symbol (bfd *abfd, |
1966 | void *filep, | |
1967 | asymbol *symbol, | |
1968 | bfd_print_symbol_type how) | |
252b5132 | 1969 | { |
a50b1753 | 1970 | FILE *file = (FILE *) filep; |
252b5132 RH |
1971 | switch (how) |
1972 | { | |
1973 | case bfd_print_symbol_name: | |
1974 | fprintf (file, "%s", symbol->name); | |
1975 | break; | |
1976 | case bfd_print_symbol_more: | |
1977 | fprintf (file, "elf "); | |
60b89a18 | 1978 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1979 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1980 | break; |
1981 | case bfd_print_symbol_all: | |
1982 | { | |
4e8a9624 AM |
1983 | const char *section_name; |
1984 | const char *name = NULL; | |
9c5bfbb7 | 1985 | const struct elf_backend_data *bed; |
7a13edea | 1986 | unsigned char st_other; |
dbb410c3 | 1987 | bfd_vma val; |
bb4d2ac2 | 1988 | const char *version_string; |
0a1b45a2 | 1989 | bool hidden; |
c044fabd | 1990 | |
252b5132 | 1991 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1992 | |
1993 | bed = get_elf_backend_data (abfd); | |
1994 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1995 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1996 | |
1997 | if (name == NULL) | |
1998 | { | |
7ee38065 | 1999 | name = symbol->name; |
217aa764 | 2000 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
2001 | } |
2002 | ||
252b5132 RH |
2003 | fprintf (file, " %s\t", section_name); |
2004 | /* Print the "other" value for a symbol. For common symbols, | |
2005 | we've already printed the size; now print the alignment. | |
2006 | For other symbols, we have no specified alignment, and | |
2007 | we've printed the address; now print the size. */ | |
dcf6c779 | 2008 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2009 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2010 | else | |
2011 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2012 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2013 | |
2014 | /* If we have version information, print it. */ | |
60bb06bc L |
2015 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2016 | symbol, | |
0a1b45a2 | 2017 | true, |
60bb06bc | 2018 | &hidden); |
bb4d2ac2 | 2019 | if (version_string) |
252b5132 | 2020 | { |
bb4d2ac2 | 2021 | if (!hidden) |
252b5132 RH |
2022 | fprintf (file, " %-11s", version_string); |
2023 | else | |
2024 | { | |
2025 | int i; | |
2026 | ||
2027 | fprintf (file, " (%s)", version_string); | |
2028 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2029 | putc (' ', file); | |
2030 | } | |
2031 | } | |
2032 | ||
2033 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2034 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2035 | |
7a13edea NC |
2036 | switch (st_other) |
2037 | { | |
2038 | case 0: break; | |
2039 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2040 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2041 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2042 | default: | |
2043 | /* Some other non-defined flags are also present, so print | |
2044 | everything hex. */ | |
2045 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2046 | } | |
252b5132 | 2047 | |
587ff49e | 2048 | fprintf (file, " %s", name); |
252b5132 RH |
2049 | } |
2050 | break; | |
2051 | } | |
2052 | } | |
252b5132 RH |
2053 | \f |
2054 | /* ELF .o/exec file reading */ | |
2055 | ||
c044fabd | 2056 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2057 | |
0a1b45a2 | 2058 | bool |
217aa764 | 2059 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2060 | { |
4fbb74a6 AM |
2061 | Elf_Internal_Shdr *hdr; |
2062 | Elf_Internal_Ehdr *ehdr; | |
2063 | const struct elf_backend_data *bed; | |
90937f86 | 2064 | const char *name; |
0a1b45a2 | 2065 | bool ret = true; |
252b5132 | 2066 | |
4fbb74a6 | 2067 | if (shindex >= elf_numsections (abfd)) |
0a1b45a2 | 2068 | return false; |
4fbb74a6 | 2069 | |
a86c6c19 AM |
2070 | /* PR17512: A corrupt ELF binary might contain a loop of sections via |
2071 | sh_link or sh_info. Detect this here, by refusing to load a | |
2072 | section that we are already in the process of loading. */ | |
2073 | if (elf_tdata (abfd)->being_created[shindex]) | |
bf67003b | 2074 | { |
a86c6c19 AM |
2075 | _bfd_error_handler |
2076 | (_("%pB: warning: loop in section dependencies detected"), abfd); | |
0a1b45a2 | 2077 | return false; |
bf67003b | 2078 | } |
0a1b45a2 | 2079 | elf_tdata (abfd)->being_created[shindex] = true; |
bf67003b | 2080 | |
4fbb74a6 AM |
2081 | hdr = elf_elfsections (abfd)[shindex]; |
2082 | ehdr = elf_elfheader (abfd); | |
2083 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2084 | hdr->sh_name); |
933d961a | 2085 | if (name == NULL) |
bf67003b | 2086 | goto fail; |
252b5132 | 2087 | |
4fbb74a6 | 2088 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2089 | switch (hdr->sh_type) |
2090 | { | |
2091 | case SHT_NULL: | |
2092 | /* Inactive section. Throw it away. */ | |
bf67003b | 2093 | goto success; |
252b5132 | 2094 | |
bf67003b NC |
2095 | case SHT_PROGBITS: /* Normal section with contents. */ |
2096 | case SHT_NOBITS: /* .bss section. */ | |
2097 | case SHT_HASH: /* .hash section. */ | |
2098 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2099 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2100 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2101 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2102 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2103 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2104 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2105 | goto success; | |
252b5132 | 2106 | |
797fc050 | 2107 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2108 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2109 | goto fail; |
2110 | ||
cfcac11d NC |
2111 | if (hdr->sh_link > elf_numsections (abfd)) |
2112 | { | |
caa83f8b | 2113 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2114 | field set to SHN_BEFORE or SHN_AFTER. */ |
2115 | switch (bfd_get_arch (abfd)) | |
2116 | { | |
caa83f8b | 2117 | case bfd_arch_i386: |
cfcac11d NC |
2118 | case bfd_arch_sparc: |
2119 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2120 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2121 | break; | |
2122 | /* Otherwise fall through. */ | |
2123 | default: | |
bf67003b | 2124 | goto fail; |
cfcac11d NC |
2125 | } |
2126 | } | |
2127 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2128 | goto fail; |
cfcac11d | 2129 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2130 | { |
2131 | Elf_Internal_Shdr *dynsymhdr; | |
2132 | ||
2133 | /* The shared libraries distributed with hpux11 have a bogus | |
2134 | sh_link field for the ".dynamic" section. Find the | |
2135 | string table for the ".dynsym" section instead. */ | |
2136 | if (elf_dynsymtab (abfd) != 0) | |
2137 | { | |
2138 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2139 | hdr->sh_link = dynsymhdr->sh_link; | |
2140 | } | |
2141 | else | |
2142 | { | |
2143 | unsigned int i, num_sec; | |
2144 | ||
2145 | num_sec = elf_numsections (abfd); | |
2146 | for (i = 1; i < num_sec; i++) | |
2147 | { | |
2148 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2149 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2150 | { | |
2151 | hdr->sh_link = dynsymhdr->sh_link; | |
2152 | break; | |
2153 | } | |
2154 | } | |
2155 | } | |
2156 | } | |
bf67003b | 2157 | goto success; |
797fc050 | 2158 | |
bf67003b | 2159 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2160 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2161 | goto success; |
252b5132 | 2162 | |
a50b2160 | 2163 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2164 | goto fail; |
2165 | ||
3337c1e5 | 2166 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2167 | { |
2168 | if (hdr->sh_size != 0) | |
bf67003b | 2169 | goto fail; |
eee3b786 AM |
2170 | /* Some assemblers erroneously set sh_info to one with a |
2171 | zero sh_size. ld sees this as a global symbol count | |
2172 | of (unsigned) -1. Fix it here. */ | |
2173 | hdr->sh_info = 0; | |
bf67003b | 2174 | goto success; |
eee3b786 | 2175 | } |
bf67003b | 2176 | |
16ad13ec NC |
2177 | /* PR 18854: A binary might contain more than one symbol table. |
2178 | Unusual, but possible. Warn, but continue. */ | |
2179 | if (elf_onesymtab (abfd) != 0) | |
2180 | { | |
4eca0228 | 2181 | _bfd_error_handler |
695344c0 | 2182 | /* xgettext:c-format */ |
871b3ab2 | 2183 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2184 | " - ignoring the table in section %u"), |
16ad13ec NC |
2185 | abfd, shindex); |
2186 | goto success; | |
2187 | } | |
252b5132 | 2188 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2189 | elf_symtab_hdr (abfd) = *hdr; |
2190 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2191 | abfd->flags |= HAS_SYMS; |
2192 | ||
2193 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2194 | SHF_ALLOC is set, and this is a shared object, then we also |
2195 | treat this section as a BFD section. We can not base the | |
2196 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2197 | set in a relocatable object file, which would confuse the | |
2198 | linker. */ | |
252b5132 RH |
2199 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2200 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2201 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2202 | shindex)) | |
bf67003b | 2203 | goto fail; |
252b5132 | 2204 | |
1b3a8575 AM |
2205 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2206 | can't read symbols without that section loaded as well. It | |
2207 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2208 | { |
2209 | elf_section_list * entry; | |
2210 | unsigned int i, num_sec; | |
1b3a8575 | 2211 | |
6a40cf0c NC |
2212 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2213 | if (entry->hdr.sh_link == shindex) | |
2214 | goto success; | |
2215 | ||
2216 | num_sec = elf_numsections (abfd); | |
2217 | for (i = shindex + 1; i < num_sec; i++) | |
2218 | { | |
2219 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2220 | ||
2221 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2222 | && hdr2->sh_link == shindex) | |
2223 | break; | |
2224 | } | |
2225 | ||
2226 | if (i == num_sec) | |
2227 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2228 | { |
2229 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2230 | |
1b3a8575 AM |
2231 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2232 | && hdr2->sh_link == shindex) | |
2233 | break; | |
2234 | } | |
6a40cf0c NC |
2235 | |
2236 | if (i != shindex) | |
2237 | ret = bfd_section_from_shdr (abfd, i); | |
2238 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2239 | goto success; | |
2240 | } | |
252b5132 | 2241 | |
bf67003b | 2242 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2243 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2244 | goto success; |
252b5132 | 2245 | |
a50b2160 | 2246 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2247 | goto fail; |
2248 | ||
eee3b786 AM |
2249 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2250 | { | |
2251 | if (hdr->sh_size != 0) | |
bf67003b NC |
2252 | goto fail; |
2253 | ||
eee3b786 AM |
2254 | /* Some linkers erroneously set sh_info to one with a |
2255 | zero sh_size. ld sees this as a global symbol count | |
2256 | of (unsigned) -1. Fix it here. */ | |
2257 | hdr->sh_info = 0; | |
bf67003b | 2258 | goto success; |
eee3b786 | 2259 | } |
bf67003b | 2260 | |
16ad13ec NC |
2261 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2262 | Unusual, but possible. Warn, but continue. */ | |
2263 | if (elf_dynsymtab (abfd) != 0) | |
2264 | { | |
4eca0228 | 2265 | _bfd_error_handler |
695344c0 | 2266 | /* xgettext:c-format */ |
871b3ab2 | 2267 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2268 | " - ignoring the table in section %u"), |
16ad13ec NC |
2269 | abfd, shindex); |
2270 | goto success; | |
2271 | } | |
252b5132 RH |
2272 | elf_dynsymtab (abfd) = shindex; |
2273 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2274 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2275 | abfd->flags |= HAS_SYMS; | |
2276 | ||
2277 | /* Besides being a symbol table, we also treat this as a regular | |
2278 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2279 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2280 | goto success; | |
252b5132 | 2281 | |
bf67003b | 2282 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2283 | { |
2284 | elf_section_list * entry; | |
9ad5cbcf | 2285 | |
6a40cf0c NC |
2286 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2287 | if (entry->ndx == shindex) | |
2288 | goto success; | |
07d6d2b8 | 2289 | |
7a6e0d89 | 2290 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2291 | if (entry == NULL) |
2292 | goto fail; | |
2293 | entry->ndx = shindex; | |
2294 | entry->hdr = * hdr; | |
2295 | entry->next = elf_symtab_shndx_list (abfd); | |
2296 | elf_symtab_shndx_list (abfd) = entry; | |
2297 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2298 | goto success; | |
2299 | } | |
9ad5cbcf | 2300 | |
bf67003b | 2301 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2302 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2303 | goto success; |
2304 | ||
252b5132 RH |
2305 | if (ehdr->e_shstrndx == shindex) |
2306 | { | |
2307 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2308 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2309 | goto success; |
252b5132 | 2310 | } |
bf67003b | 2311 | |
1b3a8575 AM |
2312 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2313 | { | |
2314 | symtab_strtab: | |
2315 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2316 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2317 | goto success; |
1b3a8575 | 2318 | } |
bf67003b | 2319 | |
1b3a8575 AM |
2320 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2321 | { | |
2322 | dynsymtab_strtab: | |
2323 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2324 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2325 | elf_elfsections (abfd)[shindex] = hdr; | |
2326 | /* We also treat this as a regular section, so that objcopy | |
2327 | can handle it. */ | |
bf67003b NC |
2328 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2329 | shindex); | |
2330 | goto success; | |
1b3a8575 | 2331 | } |
252b5132 | 2332 | |
1b3a8575 AM |
2333 | /* If the string table isn't one of the above, then treat it as a |
2334 | regular section. We need to scan all the headers to be sure, | |
2335 | just in case this strtab section appeared before the above. */ | |
2336 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2337 | { | |
2338 | unsigned int i, num_sec; | |
252b5132 | 2339 | |
1b3a8575 AM |
2340 | num_sec = elf_numsections (abfd); |
2341 | for (i = 1; i < num_sec; i++) | |
2342 | { | |
2343 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2344 | if (hdr2->sh_link == shindex) | |
2345 | { | |
933d961a JJ |
2346 | /* Prevent endless recursion on broken objects. */ |
2347 | if (i == shindex) | |
bf67003b | 2348 | goto fail; |
1b3a8575 | 2349 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2350 | goto fail; |
1b3a8575 AM |
2351 | if (elf_onesymtab (abfd) == i) |
2352 | goto symtab_strtab; | |
2353 | if (elf_dynsymtab (abfd) == i) | |
2354 | goto dynsymtab_strtab; | |
2355 | } | |
2356 | } | |
2357 | } | |
bf67003b NC |
2358 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2359 | goto success; | |
252b5132 RH |
2360 | |
2361 | case SHT_REL: | |
2362 | case SHT_RELA: | |
a619b587 | 2363 | case SHT_RELR: |
252b5132 RH |
2364 | /* *These* do a lot of work -- but build no sections! */ |
2365 | { | |
2366 | asection *target_sect; | |
d4730f92 | 2367 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2368 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2369 | struct bfd_elf_section_data *esdt; |
a619b587 | 2370 | bfd_size_type size; |
252b5132 | 2371 | |
a619b587 FS |
2372 | if (hdr->sh_type == SHT_REL) |
2373 | size = bed->s->sizeof_rel; | |
2374 | else if (hdr->sh_type == SHT_RELA) | |
2375 | size = bed->s->sizeof_rela; | |
2376 | else | |
2377 | size = bed->s->arch_size / 8; | |
2378 | if (hdr->sh_entsize != size) | |
bf67003b | 2379 | goto fail; |
a50b2160 | 2380 | |
03ae5f59 | 2381 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2382 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2383 | { |
4eca0228 | 2384 | _bfd_error_handler |
695344c0 | 2385 | /* xgettext:c-format */ |
871b3ab2 | 2386 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2387 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2388 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2389 | shindex); | |
2390 | goto success; | |
03ae5f59 ILT |
2391 | } |
2392 | ||
252b5132 | 2393 | /* Get the symbol table. */ |
1b3a8575 AM |
2394 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2395 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2396 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2397 | goto fail; |
252b5132 | 2398 | |
a4bcd733 AM |
2399 | /* If this is an alloc section in an executable or shared |
2400 | library, or the reloc section does not use the main symbol | |
2401 | table we don't treat it as a reloc section. BFD can't | |
2402 | adequately represent such a section, so at least for now, | |
2403 | we don't try. We just present it as a normal section. We | |
2404 | also can't use it as a reloc section if it points to the | |
2405 | null section, an invalid section, another reloc section, or | |
2406 | its sh_link points to the null section. */ | |
2407 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2408 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2409 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2410 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2411 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2412 | || hdr->sh_info >= num_sec |
2413 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2414 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2415 | { |
2416 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2417 | shindex); | |
2418 | goto success; | |
2419 | } | |
252b5132 RH |
2420 | |
2421 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2422 | goto fail; |
2423 | ||
252b5132 RH |
2424 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2425 | if (target_sect == NULL) | |
bf67003b | 2426 | goto fail; |
252b5132 | 2427 | |
d4730f92 BS |
2428 | esdt = elf_section_data (target_sect); |
2429 | if (hdr->sh_type == SHT_RELA) | |
2430 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2431 | else |
d4730f92 BS |
2432 | p_hdr = &esdt->rel.hdr; |
2433 | ||
a7ba3896 NC |
2434 | /* PR 17512: file: 0b4f81b7. |
2435 | Also see PR 24456, for a file which deliberately has two reloc | |
2436 | sections. */ | |
06614111 | 2437 | if (*p_hdr != NULL) |
a7ba3896 | 2438 | { |
a859124d | 2439 | if (!bed->init_secondary_reloc_section (abfd, hdr, name, shindex)) |
a8e14f4c NC |
2440 | { |
2441 | _bfd_error_handler | |
2442 | /* xgettext:c-format */ | |
a859124d AM |
2443 | (_("%pB: warning: secondary relocation section '%s' " |
2444 | "for section %pA found - ignoring"), | |
a8e14f4c NC |
2445 | abfd, name, target_sect); |
2446 | } | |
956ea65c MM |
2447 | else |
2448 | esdt->has_secondary_relocs = true; | |
a7ba3896 NC |
2449 | goto success; |
2450 | } | |
a8e14f4c | 2451 | |
ef53be89 | 2452 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2453 | if (hdr2 == NULL) |
bf67003b | 2454 | goto fail; |
252b5132 | 2455 | *hdr2 = *hdr; |
d4730f92 | 2456 | *p_hdr = hdr2; |
252b5132 | 2457 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2458 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2459 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2460 | target_sect->flags |= SEC_RELOC; |
2461 | target_sect->relocation = NULL; | |
2462 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2463 | /* In the section to which the relocations apply, mark whether |
2464 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2465 | if (hdr->sh_size != 0) |
d4730f92 BS |
2466 | { |
2467 | if (hdr->sh_type == SHT_RELA) | |
2468 | target_sect->use_rela_p = 1; | |
2469 | } | |
252b5132 | 2470 | abfd->flags |= HAS_RELOC; |
bf67003b | 2471 | goto success; |
252b5132 | 2472 | } |
252b5132 RH |
2473 | |
2474 | case SHT_GNU_verdef: | |
2475 | elf_dynverdef (abfd) = shindex; | |
2476 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2477 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2478 | goto success; | |
252b5132 RH |
2479 | |
2480 | case SHT_GNU_versym: | |
a50b2160 | 2481 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2482 | goto fail; |
2483 | ||
252b5132 RH |
2484 | elf_dynversym (abfd) = shindex; |
2485 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2486 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2487 | goto success; | |
252b5132 RH |
2488 | |
2489 | case SHT_GNU_verneed: | |
2490 | elf_dynverref (abfd) = shindex; | |
2491 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2492 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2493 | goto success; | |
252b5132 RH |
2494 | |
2495 | case SHT_SHLIB: | |
bf67003b | 2496 | goto success; |
252b5132 | 2497 | |
dbb410c3 | 2498 | case SHT_GROUP: |
44534af3 | 2499 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2500 | goto fail; |
2501 | ||
6dc132d9 | 2502 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2503 | goto fail; |
2504 | ||
bf67003b | 2505 | goto success; |
dbb410c3 | 2506 | |
252b5132 | 2507 | default: |
104d59d1 JM |
2508 | /* Possibly an attributes section. */ |
2509 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2510 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2511 | { | |
2512 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2513 | goto fail; |
104d59d1 | 2514 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2515 | goto success; |
104d59d1 JM |
2516 | } |
2517 | ||
252b5132 | 2518 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2519 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2520 | goto success; |
3eb70a79 L |
2521 | |
2522 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2523 | { | |
2524 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2525 | /* FIXME: How to properly handle allocated section reserved | |
2526 | for applications? */ | |
4eca0228 | 2527 | _bfd_error_handler |
695344c0 | 2528 | /* xgettext:c-format */ |
871b3ab2 | 2529 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2530 | abfd, hdr->sh_type, name); |
3eb70a79 | 2531 | else |
bf67003b NC |
2532 | { |
2533 | /* Allow sections reserved for applications. */ | |
2534 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2535 | shindex); | |
2536 | goto success; | |
2537 | } | |
3eb70a79 L |
2538 | } |
2539 | else if (hdr->sh_type >= SHT_LOPROC | |
2540 | && hdr->sh_type <= SHT_HIPROC) | |
2541 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2542 | _bfd_error_handler |
695344c0 | 2543 | /* xgettext:c-format */ |
871b3ab2 | 2544 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2545 | abfd, hdr->sh_type, name); |
3eb70a79 | 2546 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2547 | { |
2548 | /* Unrecognised OS-specific sections. */ | |
2549 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2550 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2551 | required to correctly process the section and the file should |
ff15b240 | 2552 | be rejected with an error message. */ |
4eca0228 | 2553 | _bfd_error_handler |
695344c0 | 2554 | /* xgettext:c-format */ |
871b3ab2 | 2555 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2556 | abfd, hdr->sh_type, name); |
ff15b240 | 2557 | else |
bf67003b NC |
2558 | { |
2559 | /* Otherwise it should be processed. */ | |
2560 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2561 | goto success; | |
2562 | } | |
ff15b240 | 2563 | } |
3eb70a79 L |
2564 | else |
2565 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2566 | _bfd_error_handler |
695344c0 | 2567 | /* xgettext:c-format */ |
871b3ab2 | 2568 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2569 | abfd, hdr->sh_type, name); |
3eb70a79 | 2570 | |
bf67003b | 2571 | goto fail; |
252b5132 RH |
2572 | } |
2573 | ||
bf67003b | 2574 | fail: |
0a1b45a2 | 2575 | ret = false; |
bf67003b | 2576 | success: |
0a1b45a2 | 2577 | elf_tdata (abfd)->being_created[shindex] = false; |
bf67003b | 2578 | return ret; |
252b5132 RH |
2579 | } |
2580 | ||
87d72d41 | 2581 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2582 | |
87d72d41 AM |
2583 | Elf_Internal_Sym * |
2584 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2585 | bfd *abfd, | |
2586 | unsigned long r_symndx) | |
ec338859 | 2587 | { |
ec338859 AM |
2588 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2589 | ||
a5d1b3b5 AM |
2590 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2591 | { | |
2592 | Elf_Internal_Shdr *symtab_hdr; | |
2593 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2594 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2595 | |
a5d1b3b5 AM |
2596 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2597 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2598 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2599 | return NULL; |
9ad5cbcf | 2600 | |
a5d1b3b5 AM |
2601 | if (cache->abfd != abfd) |
2602 | { | |
2603 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2604 | cache->abfd = abfd; | |
2605 | } | |
2606 | cache->indx[ent] = r_symndx; | |
ec338859 | 2607 | } |
a5d1b3b5 | 2608 | |
87d72d41 | 2609 | return &cache->sym[ent]; |
ec338859 AM |
2610 | } |
2611 | ||
252b5132 RH |
2612 | /* Given an ELF section number, retrieve the corresponding BFD |
2613 | section. */ | |
2614 | ||
2615 | asection * | |
91d6fa6a | 2616 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2617 | { |
91d6fa6a | 2618 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2619 | return NULL; |
91d6fa6a | 2620 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2621 | } |
2622 | ||
b35d266b | 2623 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2624 | { |
0112cd26 | 2625 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2626 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2627 | }; |
2628 | ||
b35d266b | 2629 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2630 | { |
0112cd26 | 2631 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2632 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2633 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2634 | }; |
2635 | ||
b35d266b | 2636 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2637 | { |
07d6d2b8 AM |
2638 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2639 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2640 | /* There are more DWARF sections than these, but they needn't be added here |
2641 | unless you have to cope with broken compilers that don't emit section | |
2642 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2643 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2644 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2645 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2646 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2647 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2648 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2649 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2650 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2651 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2652 | }; |
2653 | ||
b35d266b | 2654 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2655 | { |
07d6d2b8 | 2656 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2657 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2658 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2659 | }; |
2660 | ||
b35d266b | 2661 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2662 | { |
0112cd26 | 2663 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 JL |
2664 | { STRING_COMMA_LEN (".gnu.linkonce.n"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2665 | { STRING_COMMA_LEN (".gnu.linkonce.p"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
07d6d2b8 AM |
2666 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2667 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2668 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2669 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2670 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2671 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2672 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2673 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2674 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2675 | }; |
2676 | ||
b35d266b | 2677 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2678 | { |
07d6d2b8 AM |
2679 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2680 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2681 | }; |
2682 | ||
b35d266b | 2683 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2684 | { |
07d6d2b8 | 2685 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2686 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2687 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2688 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2689 | }; |
2690 | ||
b35d266b | 2691 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2692 | { |
0112cd26 | 2693 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2694 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2695 | }; |
2696 | ||
b35d266b | 2697 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2698 | { |
2c6f3e56 | 2699 | { STRING_COMMA_LEN (".noinit"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
0112cd26 | 2700 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2701 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2702 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2703 | }; |
2704 | ||
b35d266b | 2705 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2706 | { |
f5e98b7d | 2707 | { STRING_COMMA_LEN (".persistent.bss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 | 2708 | { STRING_COMMA_LEN (".persistent"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
6f9dbcd4 | 2709 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2710 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2711 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2712 | }; |
2713 | ||
b35d266b | 2714 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2715 | { |
0112cd26 NC |
2716 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2717 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
fc07cf22 | 2718 | { STRING_COMMA_LEN (".relr.dyn"), 0, SHT_RELR, SHF_ALLOC }, |
07d6d2b8 AM |
2719 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2720 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2721 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2722 | }; |
2723 | ||
b35d266b | 2724 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2725 | { |
0112cd26 NC |
2726 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2727 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2728 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2729 | /* See struct bfd_elf_special_section declaration for the semantics of |
2730 | this special case where .prefix_length != strlen (.prefix). */ | |
2731 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2732 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2733 | }; |
2734 | ||
b35d266b | 2735 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2736 | { |
07d6d2b8 AM |
2737 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2738 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2739 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2740 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2741 | }; |
2742 | ||
1b315056 CS |
2743 | static const struct bfd_elf_special_section special_sections_z[] = |
2744 | { | |
07d6d2b8 AM |
2745 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2746 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2747 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2748 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2749 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2750 | }; |
2751 | ||
e4c93b56 | 2752 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2753 | { |
7f4d3958 | 2754 | special_sections_b, /* 'b' */ |
98ece1b3 | 2755 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2756 | special_sections_d, /* 'd' */ |
2757 | NULL, /* 'e' */ | |
2758 | special_sections_f, /* 'f' */ | |
2759 | special_sections_g, /* 'g' */ | |
2760 | special_sections_h, /* 'h' */ | |
2761 | special_sections_i, /* 'i' */ | |
2762 | NULL, /* 'j' */ | |
2763 | NULL, /* 'k' */ | |
2764 | special_sections_l, /* 'l' */ | |
2765 | NULL, /* 'm' */ | |
2766 | special_sections_n, /* 'n' */ | |
2767 | NULL, /* 'o' */ | |
2768 | special_sections_p, /* 'p' */ | |
2769 | NULL, /* 'q' */ | |
2770 | special_sections_r, /* 'r' */ | |
2771 | special_sections_s, /* 's' */ | |
2772 | special_sections_t, /* 't' */ | |
1b315056 CS |
2773 | NULL, /* 'u' */ |
2774 | NULL, /* 'v' */ | |
2775 | NULL, /* 'w' */ | |
2776 | NULL, /* 'x' */ | |
2777 | NULL, /* 'y' */ | |
2778 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2779 | }; |
2780 | ||
551b43fd AM |
2781 | const struct bfd_elf_special_section * |
2782 | _bfd_elf_get_special_section (const char *name, | |
2783 | const struct bfd_elf_special_section *spec, | |
2784 | unsigned int rela) | |
2f89ff8d L |
2785 | { |
2786 | int i; | |
7f4d3958 | 2787 | int len; |
7f4d3958 | 2788 | |
551b43fd | 2789 | len = strlen (name); |
7f4d3958 | 2790 | |
551b43fd | 2791 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2792 | { |
2793 | int suffix_len; | |
551b43fd | 2794 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2795 | |
2796 | if (len < prefix_len) | |
2797 | continue; | |
551b43fd | 2798 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2799 | continue; |
2800 | ||
551b43fd | 2801 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2802 | if (suffix_len <= 0) |
2803 | { | |
2804 | if (name[prefix_len] != 0) | |
2805 | { | |
2806 | if (suffix_len == 0) | |
2807 | continue; | |
2808 | if (name[prefix_len] != '.' | |
2809 | && (suffix_len == -2 | |
551b43fd | 2810 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2811 | continue; |
2812 | } | |
2813 | } | |
2814 | else | |
2815 | { | |
2816 | if (len < prefix_len + suffix_len) | |
2817 | continue; | |
2818 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2819 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2820 | suffix_len) != 0) |
2821 | continue; | |
2822 | } | |
551b43fd | 2823 | return &spec[i]; |
7dcb9820 | 2824 | } |
2f89ff8d L |
2825 | |
2826 | return NULL; | |
2827 | } | |
2828 | ||
7dcb9820 | 2829 | const struct bfd_elf_special_section * |
29ef7005 | 2830 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2831 | { |
551b43fd AM |
2832 | int i; |
2833 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2834 | const struct elf_backend_data *bed; |
2f89ff8d L |
2835 | |
2836 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2837 | if (sec->name == NULL) |
2838 | return NULL; | |
2f89ff8d | 2839 | |
29ef7005 L |
2840 | bed = get_elf_backend_data (abfd); |
2841 | spec = bed->special_sections; | |
2842 | if (spec) | |
2843 | { | |
2844 | spec = _bfd_elf_get_special_section (sec->name, | |
2845 | bed->special_sections, | |
2846 | sec->use_rela_p); | |
2847 | if (spec != NULL) | |
2848 | return spec; | |
2849 | } | |
2850 | ||
551b43fd AM |
2851 | if (sec->name[0] != '.') |
2852 | return NULL; | |
2f89ff8d | 2853 | |
551b43fd | 2854 | i = sec->name[1] - 'b'; |
1b315056 | 2855 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2856 | return NULL; |
2857 | ||
2858 | spec = special_sections[i]; | |
2f89ff8d | 2859 | |
551b43fd AM |
2860 | if (spec == NULL) |
2861 | return NULL; | |
2862 | ||
2863 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2864 | } |
2865 | ||
0a1b45a2 | 2866 | bool |
217aa764 | 2867 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2868 | { |
2869 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2870 | const struct elf_backend_data *bed; |
7dcb9820 | 2871 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2872 | |
f0abc2a1 AM |
2873 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2874 | if (sdata == NULL) | |
2875 | { | |
a50b1753 | 2876 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2877 | sizeof (*sdata)); |
f0abc2a1 | 2878 | if (sdata == NULL) |
0a1b45a2 | 2879 | return false; |
217aa764 | 2880 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2881 | } |
bf572ba0 | 2882 | |
551b43fd AM |
2883 | /* Indicate whether or not this section should use RELA relocations. */ |
2884 | bed = get_elf_backend_data (abfd); | |
2885 | sec->use_rela_p = bed->default_use_rela_p; | |
2886 | ||
8c803a2d AM |
2887 | /* Set up ELF section type and flags for newly created sections, if |
2888 | there is an ABI mandated section. */ | |
2889 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2890 | if (ssect != NULL) | |
2f89ff8d | 2891 | { |
8c803a2d AM |
2892 | elf_section_type (sec) = ssect->type; |
2893 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2894 | } |
2895 | ||
f592407e | 2896 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2897 | } |
2898 | ||
2899 | /* Create a new bfd section from an ELF program header. | |
2900 | ||
2901 | Since program segments have no names, we generate a synthetic name | |
2902 | of the form segment<NUM>, where NUM is generally the index in the | |
2903 | program header table. For segments that are split (see below) we | |
2904 | generate the names segment<NUM>a and segment<NUM>b. | |
2905 | ||
2906 | Note that some program segments may have a file size that is different than | |
2907 | (less than) the memory size. All this means is that at execution the | |
2908 | system must allocate the amount of memory specified by the memory size, | |
2909 | but only initialize it with the first "file size" bytes read from the | |
2910 | file. This would occur for example, with program segments consisting | |
2911 | of combined data+bss. | |
2912 | ||
2913 | To handle the above situation, this routine generates TWO bfd sections | |
2914 | for the single program segment. The first has the length specified by | |
2915 | the file size of the segment, and the second has the length specified | |
2916 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2917 | into its initialized and uninitialized parts. |
252b5132 RH |
2918 | |
2919 | */ | |
2920 | ||
0a1b45a2 | 2921 | bool |
217aa764 AM |
2922 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2923 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2924 | int hdr_index, |
a50b1753 | 2925 | const char *type_name) |
252b5132 RH |
2926 | { |
2927 | asection *newsect; | |
2928 | char *name; | |
2929 | char namebuf[64]; | |
d4c88bbb | 2930 | size_t len; |
252b5132 | 2931 | int split; |
502794d4 | 2932 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
2933 | |
2934 | split = ((hdr->p_memsz > 0) | |
2935 | && (hdr->p_filesz > 0) | |
2936 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2937 | |
2938 | if (hdr->p_filesz > 0) | |
252b5132 | 2939 | { |
91d6fa6a | 2940 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2941 | len = strlen (namebuf) + 1; |
a50b1753 | 2942 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c | 2943 | if (!name) |
0a1b45a2 | 2944 | return false; |
d5191d0c AM |
2945 | memcpy (name, namebuf, len); |
2946 | newsect = bfd_make_section (abfd, name); | |
2947 | if (newsect == NULL) | |
0a1b45a2 | 2948 | return false; |
502794d4 CE |
2949 | newsect->vma = hdr->p_vaddr / opb; |
2950 | newsect->lma = hdr->p_paddr / opb; | |
d5191d0c AM |
2951 | newsect->size = hdr->p_filesz; |
2952 | newsect->filepos = hdr->p_offset; | |
2953 | newsect->flags |= SEC_HAS_CONTENTS; | |
2954 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2955 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2956 | { |
d5191d0c AM |
2957 | newsect->flags |= SEC_ALLOC; |
2958 | newsect->flags |= SEC_LOAD; | |
2959 | if (hdr->p_flags & PF_X) | |
2960 | { | |
2961 | /* FIXME: all we known is that it has execute PERMISSION, | |
2962 | may be data. */ | |
2963 | newsect->flags |= SEC_CODE; | |
2964 | } | |
2965 | } | |
2966 | if (!(hdr->p_flags & PF_W)) | |
2967 | { | |
2968 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2969 | } |
252b5132 RH |
2970 | } |
2971 | ||
d5191d0c | 2972 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2973 | { |
d5191d0c AM |
2974 | bfd_vma align; |
2975 | ||
91d6fa6a | 2976 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2977 | len = strlen (namebuf) + 1; |
a50b1753 | 2978 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2979 | if (!name) |
0a1b45a2 | 2980 | return false; |
d4c88bbb | 2981 | memcpy (name, namebuf, len); |
252b5132 RH |
2982 | newsect = bfd_make_section (abfd, name); |
2983 | if (newsect == NULL) | |
0a1b45a2 | 2984 | return false; |
502794d4 CE |
2985 | newsect->vma = (hdr->p_vaddr + hdr->p_filesz) / opb; |
2986 | newsect->lma = (hdr->p_paddr + hdr->p_filesz) / opb; | |
eea6121a | 2987 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2988 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2989 | align = newsect->vma & -newsect->vma; | |
2990 | if (align == 0 || align > hdr->p_align) | |
2991 | align = hdr->p_align; | |
2992 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2993 | if (hdr->p_type == PT_LOAD) |
2994 | { | |
2995 | newsect->flags |= SEC_ALLOC; | |
2996 | if (hdr->p_flags & PF_X) | |
2997 | newsect->flags |= SEC_CODE; | |
2998 | } | |
2999 | if (!(hdr->p_flags & PF_W)) | |
3000 | newsect->flags |= SEC_READONLY; | |
3001 | } | |
3002 | ||
0a1b45a2 | 3003 | return true; |
252b5132 RH |
3004 | } |
3005 | ||
0a1b45a2 | 3006 | static bool |
864619bb KS |
3007 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) |
3008 | { | |
3009 | /* The return value is ignored. Build-ids are considered optional. */ | |
3010 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3011 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3012 | (templ, offset); | |
0a1b45a2 | 3013 | return false; |
864619bb KS |
3014 | } |
3015 | ||
0a1b45a2 | 3016 | bool |
91d6fa6a | 3017 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3018 | { |
9c5bfbb7 | 3019 | const struct elf_backend_data *bed; |
20cfcaae NC |
3020 | |
3021 | switch (hdr->p_type) | |
3022 | { | |
3023 | case PT_NULL: | |
91d6fa6a | 3024 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3025 | |
3026 | case PT_LOAD: | |
864619bb | 3027 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
0a1b45a2 | 3028 | return false; |
864619bb KS |
3029 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) |
3030 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
0a1b45a2 | 3031 | return true; |
20cfcaae NC |
3032 | |
3033 | case PT_DYNAMIC: | |
91d6fa6a | 3034 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3035 | |
3036 | case PT_INTERP: | |
91d6fa6a | 3037 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3038 | |
3039 | case PT_NOTE: | |
91d6fa6a | 3040 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
0a1b45a2 | 3041 | return false; |
276da9b3 L |
3042 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3043 | hdr->p_align)) | |
0a1b45a2 AM |
3044 | return false; |
3045 | return true; | |
20cfcaae NC |
3046 | |
3047 | case PT_SHLIB: | |
91d6fa6a | 3048 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3049 | |
3050 | case PT_PHDR: | |
91d6fa6a | 3051 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3052 | |
811072d8 | 3053 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3054 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3055 | "eh_frame_hdr"); |
3056 | ||
2b05f1b7 | 3057 | case PT_GNU_STACK: |
91d6fa6a | 3058 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3059 | |
8c37241b | 3060 | case PT_GNU_RELRO: |
91d6fa6a | 3061 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3062 | |
20cfcaae | 3063 | default: |
8c1acd09 | 3064 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3065 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3066 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3067 | } |
3068 | } | |
3069 | ||
d4730f92 BS |
3070 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3071 | REL or RELA. */ | |
3072 | ||
3073 | Elf_Internal_Shdr * | |
3074 | _bfd_elf_single_rel_hdr (asection *sec) | |
3075 | { | |
3076 | if (elf_section_data (sec)->rel.hdr) | |
3077 | { | |
3078 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3079 | return elf_section_data (sec)->rel.hdr; | |
3080 | } | |
3081 | else | |
3082 | return elf_section_data (sec)->rela.hdr; | |
3083 | } | |
3084 | ||
0a1b45a2 | 3085 | static bool |
3e19fb8f L |
3086 | _bfd_elf_set_reloc_sh_name (bfd *abfd, |
3087 | Elf_Internal_Shdr *rel_hdr, | |
3088 | const char *sec_name, | |
0a1b45a2 | 3089 | bool use_rela_p) |
3e19fb8f L |
3090 | { |
3091 | char *name = (char *) bfd_alloc (abfd, | |
3092 | sizeof ".rela" + strlen (sec_name)); | |
3093 | if (name == NULL) | |
0a1b45a2 | 3094 | return false; |
3e19fb8f L |
3095 | |
3096 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3097 | rel_hdr->sh_name = | |
3098 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
0a1b45a2 | 3099 | false); |
3e19fb8f | 3100 | if (rel_hdr->sh_name == (unsigned int) -1) |
0a1b45a2 | 3101 | return false; |
3e19fb8f | 3102 | |
0a1b45a2 | 3103 | return true; |
3e19fb8f L |
3104 | } |
3105 | ||
d4730f92 BS |
3106 | /* Allocate and initialize a section-header for a new reloc section, |
3107 | containing relocations against ASECT. It is stored in RELDATA. If | |
3108 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3109 | relocations. */ | |
23bc299b | 3110 | |
0a1b45a2 | 3111 | static bool |
217aa764 | 3112 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3113 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3114 | const char *sec_name, |
0a1b45a2 AM |
3115 | bool use_rela_p, |
3116 | bool delay_st_name_p) | |
23bc299b | 3117 | { |
d4730f92 | 3118 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3119 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3120 | |
d4730f92 | 3121 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3122 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3123 | reldata->hdr = rel_hdr; |
23bc299b | 3124 | |
3e19fb8f L |
3125 | if (delay_st_name_p) |
3126 | rel_hdr->sh_name = (unsigned int) -1; | |
3127 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3128 | use_rela_p)) | |
0a1b45a2 | 3129 | return false; |
23bc299b MM |
3130 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3131 | rel_hdr->sh_entsize = (use_rela_p | |
3132 | ? bed->s->sizeof_rela | |
3133 | : bed->s->sizeof_rel); | |
72de5009 | 3134 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3135 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3136 | rel_hdr->sh_addr = 0; |
3137 | rel_hdr->sh_size = 0; | |
3138 | rel_hdr->sh_offset = 0; | |
3139 | ||
0a1b45a2 | 3140 | return true; |
23bc299b MM |
3141 | } |
3142 | ||
94be91de JB |
3143 | /* Return the default section type based on the passed in section flags. */ |
3144 | ||
3145 | int | |
3146 | bfd_elf_get_default_section_type (flagword flags) | |
3147 | { | |
0e41bebb | 3148 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3149 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3150 | return SHT_NOBITS; |
3151 | return SHT_PROGBITS; | |
3152 | } | |
3153 | ||
d4730f92 BS |
3154 | struct fake_section_arg |
3155 | { | |
3156 | struct bfd_link_info *link_info; | |
0a1b45a2 | 3157 | bool failed; |
d4730f92 BS |
3158 | }; |
3159 | ||
252b5132 RH |
3160 | /* Set up an ELF internal section header for a section. */ |
3161 | ||
252b5132 | 3162 | static void |
d4730f92 | 3163 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3164 | { |
d4730f92 | 3165 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3166 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3167 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3168 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3169 | unsigned int sh_type; |
0ce398f1 | 3170 | const char *name = asect->name; |
0a1b45a2 | 3171 | bool delay_st_name_p = false; |
233bf4f8 | 3172 | bfd_vma mask; |
252b5132 | 3173 | |
d4730f92 | 3174 | if (arg->failed) |
252b5132 RH |
3175 | { |
3176 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3177 | loop. */ |
252b5132 RH |
3178 | return; |
3179 | } | |
3180 | ||
d4730f92 | 3181 | this_hdr = &esd->this_hdr; |
252b5132 | 3182 | |
f6fe1ccd | 3183 | if (arg->link_info) |
0ce398f1 | 3184 | { |
f6fe1ccd L |
3185 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3186 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3187 | && (asect->flags & SEC_DEBUGGING) | |
3188 | && name[1] == 'd' | |
3189 | && name[6] == '_') | |
3190 | { | |
3191 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3192 | compressed. */ | |
3193 | asect->flags |= SEC_ELF_COMPRESS; | |
dd905818 | 3194 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3195 | name to section name section after it is compressed in |
3196 | _bfd_elf_assign_file_positions_for_non_load. */ | |
0a1b45a2 | 3197 | delay_st_name_p = true; |
f6fe1ccd L |
3198 | } |
3199 | } | |
3200 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3201 | { | |
3202 | /* objcopy: rename output DWARF debug section. */ | |
3203 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3204 | { | |
3205 | /* When we decompress or compress with SHF_COMPRESSED, | |
3206 | convert section name from .zdebug_* to .debug_* if | |
3207 | needed. */ | |
3208 | if (name[1] == 'z') | |
3209 | { | |
3210 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3211 | if (new_name == NULL) | |
3212 | { | |
0a1b45a2 | 3213 | arg->failed = true; |
f6fe1ccd L |
3214 | return; |
3215 | } | |
3216 | name = new_name; | |
3217 | } | |
3218 | } | |
3219 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3220 | { |
f6fe1ccd L |
3221 | /* PR binutils/18087: Compression does not always make a |
3222 | section smaller. So only rename the section when | |
3223 | compression has actually taken place. If input section | |
3224 | name is .zdebug_*, we should never compress it again. */ | |
3225 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3226 | if (new_name == NULL) |
3227 | { | |
0a1b45a2 | 3228 | arg->failed = true; |
0ce398f1 L |
3229 | return; |
3230 | } | |
f6fe1ccd L |
3231 | BFD_ASSERT (name[1] != 'z'); |
3232 | name = new_name; | |
0ce398f1 L |
3233 | } |
3234 | } | |
3235 | ||
3e19fb8f L |
3236 | if (delay_st_name_p) |
3237 | this_hdr->sh_name = (unsigned int) -1; | |
3238 | else | |
252b5132 | 3239 | { |
3e19fb8f L |
3240 | this_hdr->sh_name |
3241 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 3242 | name, false); |
3e19fb8f L |
3243 | if (this_hdr->sh_name == (unsigned int) -1) |
3244 | { | |
0a1b45a2 | 3245 | arg->failed = true; |
3e19fb8f L |
3246 | return; |
3247 | } | |
252b5132 RH |
3248 | } |
3249 | ||
a4d8e49b | 3250 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3251 | |
3252 | if ((asect->flags & SEC_ALLOC) != 0 | |
3253 | || asect->user_set_vma) | |
502794d4 | 3254 | this_hdr->sh_addr = asect->vma * bfd_octets_per_byte (abfd, asect); |
252b5132 RH |
3255 | else |
3256 | this_hdr->sh_addr = 0; | |
3257 | ||
3258 | this_hdr->sh_offset = 0; | |
eea6121a | 3259 | this_hdr->sh_size = asect->size; |
252b5132 | 3260 | this_hdr->sh_link = 0; |
c86934ce NC |
3261 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3262 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3263 | { | |
4eca0228 | 3264 | _bfd_error_handler |
695344c0 | 3265 | /* xgettext:c-format */ |
9793eb77 | 3266 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3267 | abfd, asect->alignment_power, asect); |
0a1b45a2 | 3268 | arg->failed = true; |
c86934ce NC |
3269 | return; |
3270 | } | |
233bf4f8 AM |
3271 | /* Set sh_addralign to the highest power of two given by alignment |
3272 | consistent with the section VMA. Linker scripts can force VMA. */ | |
3273 | mask = ((bfd_vma) 1 << asect->alignment_power) | this_hdr->sh_addr; | |
3274 | this_hdr->sh_addralign = mask & -mask; | |
252b5132 RH |
3275 | /* The sh_entsize and sh_info fields may have been set already by |
3276 | copy_private_section_data. */ | |
3277 | ||
3278 | this_hdr->bfd_section = asect; | |
3279 | this_hdr->contents = NULL; | |
3280 | ||
3cddba1e L |
3281 | /* If the section type is unspecified, we set it based on |
3282 | asect->flags. */ | |
c212f39d FS |
3283 | if (asect->type != 0) |
3284 | sh_type = asect->type; | |
3285 | else if ((asect->flags & SEC_GROUP) != 0) | |
98ece1b3 | 3286 | sh_type = SHT_GROUP; |
98ece1b3 | 3287 | else |
94be91de | 3288 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3289 | |
3cddba1e | 3290 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3291 | this_hdr->sh_type = sh_type; |
3292 | else if (this_hdr->sh_type == SHT_NOBITS | |
3293 | && sh_type == SHT_PROGBITS | |
3294 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3295 | { |
98ece1b3 AM |
3296 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3297 | allow the link to proceed. This can happen when users link | |
3298 | non-bss input sections to bss output sections, or emit data | |
3299 | to a bss output section via a linker script. */ | |
4eca0228 | 3300 | _bfd_error_handler |
871b3ab2 | 3301 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3302 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3303 | } |
3304 | ||
2f89ff8d | 3305 | switch (this_hdr->sh_type) |
252b5132 | 3306 | { |
2f89ff8d | 3307 | default: |
2f89ff8d L |
3308 | break; |
3309 | ||
3310 | case SHT_STRTAB: | |
2f89ff8d L |
3311 | case SHT_NOTE: |
3312 | case SHT_NOBITS: | |
3313 | case SHT_PROGBITS: | |
3314 | break; | |
606851fb AM |
3315 | |
3316 | case SHT_INIT_ARRAY: | |
3317 | case SHT_FINI_ARRAY: | |
3318 | case SHT_PREINIT_ARRAY: | |
3319 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3320 | break; | |
2f89ff8d L |
3321 | |
3322 | case SHT_HASH: | |
c7ac6ff8 | 3323 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3324 | break; |
5de3bf90 | 3325 | |
2f89ff8d | 3326 | case SHT_DYNSYM: |
252b5132 | 3327 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3328 | break; |
3329 | ||
3330 | case SHT_DYNAMIC: | |
252b5132 | 3331 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3332 | break; |
3333 | ||
3334 | case SHT_RELA: | |
3335 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3336 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3337 | break; | |
3338 | ||
3339 | case SHT_REL: | |
3340 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3341 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3342 | break; | |
3343 | ||
3344 | case SHT_GNU_versym: | |
252b5132 | 3345 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3346 | break; |
3347 | ||
3348 | case SHT_GNU_verdef: | |
252b5132 RH |
3349 | this_hdr->sh_entsize = 0; |
3350 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3351 | cverdefs. The linker will set cverdefs, but sh_info will be |
3352 | zero. */ | |
252b5132 RH |
3353 | if (this_hdr->sh_info == 0) |
3354 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3355 | else | |
3356 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3357 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3358 | break; |
3359 | ||
3360 | case SHT_GNU_verneed: | |
252b5132 RH |
3361 | this_hdr->sh_entsize = 0; |
3362 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3363 | cverrefs. The linker will set cverrefs, but sh_info will be |
3364 | zero. */ | |
252b5132 RH |
3365 | if (this_hdr->sh_info == 0) |
3366 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3367 | else | |
3368 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3369 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3370 | break; |
3371 | ||
3372 | case SHT_GROUP: | |
1783205a | 3373 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3374 | break; |
fdc90cb4 JJ |
3375 | |
3376 | case SHT_GNU_HASH: | |
3377 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3378 | break; | |
dbb410c3 | 3379 | } |
252b5132 RH |
3380 | |
3381 | if ((asect->flags & SEC_ALLOC) != 0) | |
3382 | this_hdr->sh_flags |= SHF_ALLOC; | |
3383 | if ((asect->flags & SEC_READONLY) == 0) | |
3384 | this_hdr->sh_flags |= SHF_WRITE; | |
3385 | if ((asect->flags & SEC_CODE) != 0) | |
3386 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3387 | if ((asect->flags & SEC_MERGE) != 0) |
3388 | { | |
3389 | this_hdr->sh_flags |= SHF_MERGE; | |
3390 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3391 | } |
84865015 NC |
3392 | if ((asect->flags & SEC_STRINGS) != 0) |
3393 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3394 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3395 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3396 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3397 | { |
3398 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3399 | if (asect->size == 0 |
3400 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3401 | { |
3a800eb9 | 3402 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3403 | |
704afa60 | 3404 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3405 | if (o != NULL) |
3406 | { | |
704afa60 | 3407 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3408 | if (this_hdr->sh_size != 0) |
3409 | this_hdr->sh_type = SHT_NOBITS; | |
3410 | } | |
704afa60 JJ |
3411 | } |
3412 | } | |
18ae9cc1 L |
3413 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3414 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3415 | |
d4730f92 BS |
3416 | /* If the section has relocs, set up a section header for the |
3417 | SHT_REL[A] section. If two relocation sections are required for | |
3418 | this section, it is up to the processor-specific back-end to | |
3419 | create the other. */ | |
3420 | if ((asect->flags & SEC_RELOC) != 0) | |
3421 | { | |
3422 | /* When doing a relocatable link, create both REL and RELA sections if | |
3423 | needed. */ | |
3424 | if (arg->link_info | |
3425 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3426 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3427 | && (bfd_link_relocatable (arg->link_info) |
3428 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3429 | { |
3430 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3431 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
0a1b45a2 | 3432 | false, delay_st_name_p)) |
d4730f92 | 3433 | { |
0a1b45a2 | 3434 | arg->failed = true; |
d4730f92 BS |
3435 | return; |
3436 | } | |
3437 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3438 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
0a1b45a2 | 3439 | true, delay_st_name_p)) |
d4730f92 | 3440 | { |
0a1b45a2 | 3441 | arg->failed = true; |
d4730f92 BS |
3442 | return; |
3443 | } | |
3444 | } | |
3445 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3446 | (asect->use_rela_p | |
3447 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3448 | name, |
3e19fb8f L |
3449 | asect->use_rela_p, |
3450 | delay_st_name_p)) | |
db4677b8 | 3451 | { |
0a1b45a2 | 3452 | arg->failed = true; |
db4677b8 AM |
3453 | return; |
3454 | } | |
d4730f92 BS |
3455 | } |
3456 | ||
252b5132 | 3457 | /* Check for processor-specific section types. */ |
0414f35b | 3458 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3459 | if (bed->elf_backend_fake_sections |
3460 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 | 3461 | { |
0a1b45a2 | 3462 | arg->failed = true; |
db4677b8 AM |
3463 | return; |
3464 | } | |
252b5132 | 3465 | |
42bb2e33 | 3466 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3467 | { |
3468 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3469 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3470 | this_hdr->sh_type = sh_type; |
3471 | } | |
252b5132 RH |
3472 | } |
3473 | ||
bcacc0f5 AM |
3474 | /* Fill in the contents of a SHT_GROUP section. Called from |
3475 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3476 | when ELF targets use the generic linker, ld. Called for ld -r | |
3477 | from bfd_elf_final_link. */ | |
dbb410c3 | 3478 | |
1126897b | 3479 | void |
217aa764 | 3480 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3481 | { |
0a1b45a2 | 3482 | bool *failedptr = (bool *) failedptrarg; |
9dce4196 | 3483 | asection *elt, *first; |
dbb410c3 | 3484 | unsigned char *loc; |
0a1b45a2 | 3485 | bool gas; |
dbb410c3 | 3486 | |
7e4111ad L |
3487 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3488 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3489 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3490 | || sec->size == 0 | |
dbb410c3 AM |
3491 | || *failedptr) |
3492 | return; | |
3493 | ||
bcacc0f5 AM |
3494 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3495 | { | |
3496 | unsigned long symindx = 0; | |
3497 | ||
3498 | /* elf_group_id will have been set up by objcopy and the | |
3499 | generic linker. */ | |
3500 | if (elf_group_id (sec) != NULL) | |
3501 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3502 | |
bcacc0f5 AM |
3503 | if (symindx == 0) |
3504 | { | |
3505 | /* If called from the assembler, swap_out_syms will have set up | |
6a541707 NC |
3506 | elf_section_syms. |
3507 | PR 25699: A corrupt input file could contain bogus group info. */ | |
27e3da31 AM |
3508 | if (sec->index >= elf_num_section_syms (abfd) |
3509 | || elf_section_syms (abfd)[sec->index] == NULL) | |
6a541707 | 3510 | { |
0a1b45a2 | 3511 | *failedptr = true; |
6a541707 NC |
3512 | return; |
3513 | } | |
bcacc0f5 AM |
3514 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; |
3515 | } | |
3516 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3517 | } | |
3518 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3519 | { |
bcacc0f5 AM |
3520 | /* The ELF backend linker sets sh_info to -2 when the group |
3521 | signature symbol is global, and thus the index can't be | |
3522 | set until all local symbols are output. */ | |
53720c49 AM |
3523 | asection *igroup; |
3524 | struct bfd_elf_section_data *sec_data; | |
3525 | unsigned long symndx; | |
3526 | unsigned long extsymoff; | |
bcacc0f5 AM |
3527 | struct elf_link_hash_entry *h; |
3528 | ||
53720c49 AM |
3529 | /* The point of this little dance to the first SHF_GROUP section |
3530 | then back to the SHT_GROUP section is that this gets us to | |
3531 | the SHT_GROUP in the input object. */ | |
3532 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3533 | sec_data = elf_section_data (igroup); | |
3534 | symndx = sec_data->this_hdr.sh_info; | |
3535 | extsymoff = 0; | |
bcacc0f5 AM |
3536 | if (!elf_bad_symtab (igroup->owner)) |
3537 | { | |
3538 | Elf_Internal_Shdr *symtab_hdr; | |
3539 | ||
3540 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3541 | extsymoff = symtab_hdr->sh_info; | |
3542 | } | |
3543 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3544 | while (h->root.type == bfd_link_hash_indirect | |
3545 | || h->root.type == bfd_link_hash_warning) | |
3546 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3547 | ||
3548 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3549 | } |
dbb410c3 | 3550 | |
1126897b | 3551 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
0a1b45a2 | 3552 | gas = true; |
dbb410c3 AM |
3553 | if (sec->contents == NULL) |
3554 | { | |
0a1b45a2 | 3555 | gas = false; |
a50b1753 | 3556 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3557 | |
3558 | /* Arrange for the section to be written out. */ | |
3559 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3560 | if (sec->contents == NULL) |
3561 | { | |
0a1b45a2 | 3562 | *failedptr = true; |
dbb410c3 AM |
3563 | return; |
3564 | } | |
3565 | } | |
3566 | ||
eea6121a | 3567 | loc = sec->contents + sec->size; |
dbb410c3 | 3568 | |
9dce4196 AM |
3569 | /* Get the pointer to the first section in the group that gas |
3570 | squirreled away here. objcopy arranges for this to be set to the | |
3571 | start of the input section group. */ | |
3572 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3573 | |
3574 | /* First element is a flag word. Rest of section is elf section | |
3575 | indices for all the sections of the group. Write them backwards | |
3576 | just to keep the group in the same order as given in .section | |
3577 | directives, not that it matters. */ | |
3578 | while (elt != NULL) | |
3579 | { | |
9dce4196 | 3580 | asection *s; |
9dce4196 | 3581 | |
9dce4196 | 3582 | s = elt; |
415f38a6 AM |
3583 | if (!gas) |
3584 | s = s->output_section; | |
3585 | if (s != NULL | |
3586 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3587 | { |
db4677b8 | 3588 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3589 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3590 | ||
3591 | if (elf_sec->rel.hdr != NULL | |
3592 | && (gas | |
3593 | || (input_elf_sec->rel.hdr != NULL | |
3594 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3595 | { |
28e07a05 | 3596 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3597 | loc -= 4; |
3598 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3599 | } | |
28e07a05 AM |
3600 | if (elf_sec->rela.hdr != NULL |
3601 | && (gas | |
3602 | || (input_elf_sec->rela.hdr != NULL | |
3603 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3604 | { |
28e07a05 | 3605 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3606 | loc -= 4; |
3607 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3608 | } | |
01e1a5bc | 3609 | loc -= 4; |
db4677b8 | 3610 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3611 | } |
945906ff | 3612 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3613 | if (elt == first) |
3614 | break; | |
dbb410c3 AM |
3615 | } |
3616 | ||
7bdf4127 AB |
3617 | loc -= 4; |
3618 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3619 | |
9dce4196 | 3620 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3621 | } |
3622 | ||
bce964aa AM |
3623 | /* Given NAME, the name of a relocation section stripped of its |
3624 | .rel/.rela prefix, return the section in ABFD to which the | |
3625 | relocations apply. */ | |
bd53a53a L |
3626 | |
3627 | asection * | |
bce964aa AM |
3628 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3629 | { | |
3630 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3631 | section likely apply to .got.plt or .got section. */ | |
3632 | if (get_elf_backend_data (abfd)->want_got_plt | |
3633 | && strcmp (name, ".plt") == 0) | |
3634 | { | |
3635 | asection *sec; | |
3636 | ||
3637 | name = ".got.plt"; | |
3638 | sec = bfd_get_section_by_name (abfd, name); | |
3639 | if (sec != NULL) | |
3640 | return sec; | |
3641 | name = ".got"; | |
3642 | } | |
3643 | ||
3644 | return bfd_get_section_by_name (abfd, name); | |
3645 | } | |
3646 | ||
3647 | /* Return the section to which RELOC_SEC applies. */ | |
3648 | ||
3649 | static asection * | |
3650 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3651 | { |
3652 | const char *name; | |
3653 | unsigned int type; | |
3654 | bfd *abfd; | |
bce964aa | 3655 | const struct elf_backend_data *bed; |
bd53a53a L |
3656 | |
3657 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3658 | if (type != SHT_REL && type != SHT_RELA) | |
3659 | return NULL; | |
3660 | ||
3661 | /* We look up the section the relocs apply to by name. */ | |
3662 | name = reloc_sec->name; | |
3f3328b8 | 3663 | if (!startswith (name, ".rel")) |
bce964aa AM |
3664 | return NULL; |
3665 | name += 4; | |
3666 | if (type == SHT_RELA && *name++ != 'a') | |
3667 | return NULL; | |
bd53a53a | 3668 | |
bd53a53a | 3669 | abfd = reloc_sec->owner; |
bce964aa AM |
3670 | bed = get_elf_backend_data (abfd); |
3671 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3672 | } |
3673 | ||
252b5132 RH |
3674 | /* Assign all ELF section numbers. The dummy first section is handled here |
3675 | too. The link/info pointers for the standard section types are filled | |
67411cbf AM |
3676 | in here too, while we're at it. LINK_INFO will be 0 when arriving |
3677 | here for objcopy, and when using the generic ELF linker. */ | |
252b5132 | 3678 | |
0a1b45a2 | 3679 | static bool |
da9f89d4 | 3680 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3681 | { |
3682 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3683 | asection *sec; | |
3e19fb8f | 3684 | unsigned int section_number; |
252b5132 | 3685 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3686 | struct bfd_elf_section_data *d; |
0a1b45a2 | 3687 | bool need_symtab; |
446f7ed5 | 3688 | size_t amt; |
252b5132 RH |
3689 | |
3690 | section_number = 1; | |
3691 | ||
2b0f7ef9 JJ |
3692 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3693 | ||
da9f89d4 | 3694 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3695 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3696 | { |
ef53be89 | 3697 | size_t reloc_count = 0; |
14f2c699 | 3698 | |
da9f89d4 | 3699 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3700 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3701 | { |
5daa8fe7 | 3702 | d = elf_section_data (sec); |
da9f89d4 L |
3703 | |
3704 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3705 | { |
5daa8fe7 | 3706 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3707 | { |
3708 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3709 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3710 | abfd->section_count--; |
da9f89d4 | 3711 | } |
08a40648 | 3712 | else |
4fbb74a6 | 3713 | d->this_idx = section_number++; |
da9f89d4 | 3714 | } |
14f2c699 L |
3715 | |
3716 | /* Count relocations. */ | |
3717 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3718 | } |
14f2c699 L |
3719 | |
3720 | /* Clear HAS_RELOC if there are no relocations. */ | |
3721 | if (reloc_count == 0) | |
3722 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3723 | } |
3724 | ||
3725 | for (sec = abfd->sections; sec; sec = sec->next) | |
3726 | { | |
3727 | d = elf_section_data (sec); | |
3728 | ||
3729 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3730 | d->this_idx = section_number++; |
3e19fb8f L |
3731 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3732 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3733 | if (d->rel.hdr) |
2b0f7ef9 | 3734 | { |
d4730f92 | 3735 | d->rel.idx = section_number++; |
3e19fb8f L |
3736 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3737 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3738 | } |
d4730f92 BS |
3739 | else |
3740 | d->rel.idx = 0; | |
23bc299b | 3741 | |
d4730f92 | 3742 | if (d->rela.hdr) |
2b0f7ef9 | 3743 | { |
d4730f92 | 3744 | d->rela.idx = section_number++; |
3e19fb8f L |
3745 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3746 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3747 | } |
23bc299b | 3748 | else |
d4730f92 | 3749 | d->rela.idx = 0; |
252b5132 RH |
3750 | } |
3751 | ||
3516e984 | 3752 | need_symtab = (bfd_get_symcount (abfd) > 0 |
b6d1f70c AM |
3753 | || (link_info == NULL |
3754 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3755 | == HAS_RELOC))); | |
3516e984 | 3756 | if (need_symtab) |
252b5132 | 3757 | { |
12bd6957 | 3758 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3759 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3760 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3761 | { |
7a6e0d89 | 3762 | elf_section_list *entry; |
6a40cf0c NC |
3763 | |
3764 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3765 | ||
7a6e0d89 | 3766 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3767 | entry->ndx = section_number++; |
3768 | elf_symtab_shndx_list (abfd) = entry; | |
3769 | entry->hdr.sh_name | |
9ad5cbcf | 3770 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
0a1b45a2 | 3771 | ".symtab_shndx", false); |
6a40cf0c | 3772 | if (entry->hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 3773 | return false; |
9ad5cbcf | 3774 | } |
12bd6957 | 3775 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3776 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3777 | } |
3778 | ||
dd905818 NC |
3779 | elf_shstrtab_sec (abfd) = section_number++; |
3780 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3781 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3782 | ||
1c52a645 L |
3783 | if (section_number >= SHN_LORESERVE) |
3784 | { | |
695344c0 | 3785 | /* xgettext:c-format */ |
871b3ab2 | 3786 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 | 3787 | abfd, section_number); |
0a1b45a2 | 3788 | return false; |
1c52a645 L |
3789 | } |
3790 | ||
9ad5cbcf | 3791 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3792 | elf_elfheader (abfd)->e_shnum = section_number; |
3793 | ||
3794 | /* Set up the list of section header pointers, in agreement with the | |
3795 | indices. */ | |
446f7ed5 AM |
3796 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3797 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3798 | if (i_shdrp == NULL) |
0a1b45a2 | 3799 | return false; |
252b5132 | 3800 | |
a50b1753 | 3801 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3802 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3803 | if (i_shdrp[0] == NULL) |
3804 | { | |
3805 | bfd_release (abfd, i_shdrp); | |
0a1b45a2 | 3806 | return false; |
252b5132 | 3807 | } |
252b5132 RH |
3808 | |
3809 | elf_elfsections (abfd) = i_shdrp; | |
3810 | ||
12bd6957 | 3811 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3812 | if (need_symtab) |
252b5132 | 3813 | { |
12bd6957 | 3814 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3815 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3816 | { |
6a40cf0c NC |
3817 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3818 | BFD_ASSERT (entry != NULL); | |
3819 | i_shdrp[entry->ndx] = & entry->hdr; | |
3820 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3821 | } |
12bd6957 AM |
3822 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3823 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3824 | } |
38ce5b11 | 3825 | |
252b5132 RH |
3826 | for (sec = abfd->sections; sec; sec = sec->next) |
3827 | { | |
252b5132 | 3828 | asection *s; |
252b5132 | 3829 | |
91d6fa6a NC |
3830 | d = elf_section_data (sec); |
3831 | ||
252b5132 | 3832 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3833 | if (d->rel.idx != 0) |
3834 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3835 | if (d->rela.idx != 0) | |
3836 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3837 | |
3838 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3839 | ||
3840 | /* sh_link of a reloc section is the section index of the symbol | |
3841 | table. sh_info is the section index of the section to which | |
3842 | the relocation entries apply. */ | |
d4730f92 | 3843 | if (d->rel.idx != 0) |
252b5132 | 3844 | { |
12bd6957 | 3845 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3846 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3847 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3848 | } |
d4730f92 | 3849 | if (d->rela.idx != 0) |
23bc299b | 3850 | { |
12bd6957 | 3851 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3852 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3853 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3854 | } |
252b5132 | 3855 | |
38ce5b11 L |
3856 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3857 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3858 | { | |
3859 | s = elf_linked_to_section (sec); | |
b71702f1 NC |
3860 | /* We can now have a NULL linked section pointer. |
3861 | This happens when the sh_link field is 0, which is done | |
3862 | when a linked to section is discarded but the linking | |
3863 | section has been retained for some reason. */ | |
38ce5b11 | 3864 | if (s) |
38ce5b11 | 3865 | { |
67411cbf AM |
3866 | /* Check discarded linkonce section. */ |
3867 | if (discarded_section (s)) | |
38ce5b11 | 3868 | { |
67411cbf AM |
3869 | asection *kept; |
3870 | _bfd_error_handler | |
3871 | /* xgettext:c-format */ | |
3872 | (_("%pB: sh_link of section `%pA' points to" | |
3873 | " discarded section `%pA' of `%pB'"), | |
3874 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3875 | /* Point to the kept section if it has the same | |
3876 | size as the discarded one. */ | |
3877 | kept = _bfd_elf_check_kept_section (s, link_info); | |
3878 | if (kept == NULL) | |
f2876037 | 3879 | { |
f2876037 | 3880 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3881 | return false; |
f2876037 | 3882 | } |
67411cbf AM |
3883 | s = kept; |
3884 | } | |
3885 | /* Handle objcopy. */ | |
3886 | else if (s->output_section == NULL) | |
3887 | { | |
3888 | _bfd_error_handler | |
3889 | /* xgettext:c-format */ | |
3890 | (_("%pB: sh_link of section `%pA' points to" | |
3891 | " removed section `%pA' of `%pB'"), | |
3892 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3893 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3894 | return false; |
f2876037 | 3895 | } |
67411cbf | 3896 | s = s->output_section; |
ccd2ec6a L |
3897 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3898 | } | |
38ce5b11 L |
3899 | } |
3900 | ||
252b5132 RH |
3901 | switch (d->this_hdr.sh_type) |
3902 | { | |
3903 | case SHT_REL: | |
3904 | case SHT_RELA: | |
3905 | /* A reloc section which we are treating as a normal BFD | |
3906 | section. sh_link is the section index of the symbol | |
3907 | table. sh_info is the section index of the section to | |
3908 | which the relocation entries apply. We assume that an | |
b6d1f70c AM |
3909 | allocated reloc section uses the dynamic symbol table |
3910 | if there is one. Otherwise we guess the normal symbol | |
3911 | table. FIXME: How can we be sure? */ | |
3912 | if (d->this_hdr.sh_link == 0 && (sec->flags & SEC_ALLOC) != 0) | |
3913 | { | |
3914 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3915 | if (s != NULL) | |
3916 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3917 | } | |
3918 | if (d->this_hdr.sh_link == 0) | |
3919 | d->this_hdr.sh_link = elf_onesymtab (abfd); | |
252b5132 | 3920 | |
bce964aa | 3921 | s = elf_get_reloc_section (sec); |
252b5132 | 3922 | if (s != NULL) |
9ef5d938 L |
3923 | { |
3924 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3925 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3926 | } | |
252b5132 RH |
3927 | break; |
3928 | ||
3929 | case SHT_STRTAB: | |
3930 | /* We assume that a section named .stab*str is a stabs | |
3931 | string section. We look for a section with the same name | |
3932 | but without the trailing ``str'', and set its sh_link | |
3933 | field to point to this section. */ | |
08dedd66 | 3934 | if (startswith (sec->name, ".stab") |
252b5132 RH |
3935 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3936 | { | |
3937 | size_t len; | |
3938 | char *alc; | |
3939 | ||
3940 | len = strlen (sec->name); | |
a50b1753 | 3941 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3942 | if (alc == NULL) |
0a1b45a2 | 3943 | return false; |
d4c88bbb | 3944 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3945 | alc[len - 3] = '\0'; |
3946 | s = bfd_get_section_by_name (abfd, alc); | |
3947 | free (alc); | |
3948 | if (s != NULL) | |
3949 | { | |
3950 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3951 | ||
3952 | /* This is a .stab section. */ | |
34ca5531 | 3953 | elf_section_data (s)->this_hdr.sh_entsize = 12; |
252b5132 RH |
3954 | } |
3955 | } | |
3956 | break; | |
3957 | ||
3958 | case SHT_DYNAMIC: | |
3959 | case SHT_DYNSYM: | |
3960 | case SHT_GNU_verneed: | |
3961 | case SHT_GNU_verdef: | |
3962 | /* sh_link is the section header index of the string table | |
3963 | used for the dynamic entries, or the symbol table, or the | |
3964 | version strings. */ | |
3965 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3966 | if (s != NULL) | |
3967 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3968 | break; | |
3969 | ||
7f1204bb JJ |
3970 | case SHT_GNU_LIBLIST: |
3971 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3972 | list used for the dynamic entries, or the symbol table, or |
3973 | the version strings. */ | |
b6d1f70c AM |
3974 | s = bfd_get_section_by_name (abfd, ((sec->flags & SEC_ALLOC) |
3975 | ? ".dynstr" : ".gnu.libstr")); | |
7f1204bb JJ |
3976 | if (s != NULL) |
3977 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3978 | break; | |
3979 | ||
252b5132 | 3980 | case SHT_HASH: |
fdc90cb4 | 3981 | case SHT_GNU_HASH: |
252b5132 RH |
3982 | case SHT_GNU_versym: |
3983 | /* sh_link is the section header index of the symbol table | |
3984 | this hash table or version table is for. */ | |
3985 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3986 | if (s != NULL) | |
3987 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3988 | break; | |
dbb410c3 AM |
3989 | |
3990 | case SHT_GROUP: | |
12bd6957 | 3991 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3992 | } |
3993 | } | |
3994 | ||
3e19fb8f L |
3995 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
3996 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
3997 | debug section name from .debug_* to .zdebug_* if needed. */ | |
3998 | ||
0a1b45a2 | 3999 | return true; |
252b5132 RH |
4000 | } |
4001 | ||
0a1b45a2 | 4002 | static bool |
217aa764 | 4003 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4004 | { |
4005 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4006 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4007 | if (bed->elf_backend_sym_is_global) |
4008 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4009 | |
e47bf690 | 4010 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4011 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4012 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4013 | } |
4014 | ||
76359541 TP |
4015 | /* Filter global symbols of ABFD to include in the import library. All |
4016 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4017 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4018 | the beginning of that array. | |
4019 | ||
4020 | Returns the number of symbols to keep. */ | |
4021 | ||
4022 | unsigned int | |
4023 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4024 | asymbol **syms, long symcount) | |
4025 | { | |
4026 | long src_count, dst_count = 0; | |
4027 | ||
4028 | for (src_count = 0; src_count < symcount; src_count++) | |
4029 | { | |
4030 | asymbol *sym = syms[src_count]; | |
4031 | char *name = (char *) bfd_asymbol_name (sym); | |
4032 | struct bfd_link_hash_entry *h; | |
4033 | ||
4034 | if (!sym_is_global (abfd, sym)) | |
4035 | continue; | |
4036 | ||
0a1b45a2 | 4037 | h = bfd_link_hash_lookup (info->hash, name, false, false, false); |
5df1bc57 AM |
4038 | if (h == NULL) |
4039 | continue; | |
76359541 TP |
4040 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4041 | continue; | |
76359541 TP |
4042 | if (h->linker_def || h->ldscript_def) |
4043 | continue; | |
4044 | ||
4045 | syms[dst_count++] = sym; | |
4046 | } | |
4047 | ||
4048 | syms[dst_count] = NULL; | |
4049 | ||
4050 | return dst_count; | |
4051 | } | |
4052 | ||
5372391b | 4053 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4054 | output, that are duplicates or there is no BFD section. */ |
5372391b | 4055 | |
0a1b45a2 | 4056 | static bool |
5372391b AM |
4057 | ignore_section_sym (bfd *abfd, asymbol *sym) |
4058 | { | |
c6d8cab4 L |
4059 | elf_symbol_type *type_ptr; |
4060 | ||
db0c309f | 4061 | if (sym == NULL) |
0a1b45a2 | 4062 | return false; |
db0c309f | 4063 | |
c6d8cab4 | 4064 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
0a1b45a2 | 4065 | return false; |
c6d8cab4 | 4066 | |
d1bcae83 L |
4067 | /* Ignore the section symbol if it isn't used. */ |
4068 | if ((sym->flags & BSF_SECTION_SYM_USED) == 0) | |
0a1b45a2 | 4069 | return true; |
d1bcae83 | 4070 | |
db0c309f | 4071 | if (sym->section == NULL) |
0a1b45a2 | 4072 | return true; |
db0c309f | 4073 | |
c1229f84 | 4074 | type_ptr = elf_symbol_from (sym); |
c6d8cab4 L |
4075 | return ((type_ptr != NULL |
4076 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4077 | && bfd_is_abs_section (sym->section)) | |
4078 | || !(sym->section->owner == abfd | |
db0c309f NC |
4079 | || (sym->section->output_section != NULL |
4080 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4081 | && sym->section->output_offset == 0) |
4082 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4083 | } |
4084 | ||
2633a79c AM |
4085 | /* Map symbol from it's internal number to the external number, moving |
4086 | all local symbols to be at the head of the list. */ | |
4087 | ||
0a1b45a2 | 4088 | static bool |
12bd6957 | 4089 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4090 | { |
dc810e39 | 4091 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4092 | asymbol **syms = bfd_get_outsymbols (abfd); |
4093 | asymbol **sect_syms; | |
dc810e39 AM |
4094 | unsigned int num_locals = 0; |
4095 | unsigned int num_globals = 0; | |
4096 | unsigned int num_locals2 = 0; | |
4097 | unsigned int num_globals2 = 0; | |
7292b3ac | 4098 | unsigned int max_index = 0; |
dc810e39 | 4099 | unsigned int idx; |
252b5132 RH |
4100 | asection *asect; |
4101 | asymbol **new_syms; | |
446f7ed5 | 4102 | size_t amt; |
252b5132 RH |
4103 | |
4104 | #ifdef DEBUG | |
4105 | fprintf (stderr, "elf_map_symbols\n"); | |
4106 | fflush (stderr); | |
4107 | #endif | |
4108 | ||
252b5132 RH |
4109 | for (asect = abfd->sections; asect; asect = asect->next) |
4110 | { | |
4111 | if (max_index < asect->index) | |
4112 | max_index = asect->index; | |
4113 | } | |
4114 | ||
4115 | max_index++; | |
446f7ed5 AM |
4116 | amt = max_index * sizeof (asymbol *); |
4117 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4118 | if (sect_syms == NULL) |
0a1b45a2 | 4119 | return false; |
252b5132 | 4120 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4121 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4122 | |
079e9a2f AM |
4123 | /* Init sect_syms entries for any section symbols we have already |
4124 | decided to output. */ | |
252b5132 RH |
4125 | for (idx = 0; idx < symcount; idx++) |
4126 | { | |
dc810e39 | 4127 | asymbol *sym = syms[idx]; |
c044fabd | 4128 | |
252b5132 | 4129 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4130 | && sym->value == 0 |
2633a79c AM |
4131 | && !ignore_section_sym (abfd, sym) |
4132 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4133 | { |
5372391b | 4134 | asection *sec = sym->section; |
252b5132 | 4135 | |
5372391b AM |
4136 | if (sec->owner != abfd) |
4137 | sec = sec->output_section; | |
252b5132 | 4138 | |
5372391b | 4139 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4140 | } |
4141 | } | |
4142 | ||
252b5132 RH |
4143 | /* Classify all of the symbols. */ |
4144 | for (idx = 0; idx < symcount; idx++) | |
4145 | { | |
2633a79c | 4146 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4147 | num_globals++; |
2633a79c AM |
4148 | else if (!ignore_section_sym (abfd, syms[idx])) |
4149 | num_locals++; | |
252b5132 | 4150 | } |
079e9a2f | 4151 | |
5372391b | 4152 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4153 | sections will already have a section symbol in outsymbols, but |
4154 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4155 | at least in that case. */ | |
252b5132 RH |
4156 | for (asect = abfd->sections; asect; asect = asect->next) |
4157 | { | |
d1bcae83 L |
4158 | asymbol *sym = asect->symbol; |
4159 | /* Don't include ignored section symbols. */ | |
4160 | if (!ignore_section_sym (abfd, sym) | |
4161 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4162 | { |
079e9a2f | 4163 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4164 | num_locals++; |
4165 | else | |
4166 | num_globals++; | |
252b5132 RH |
4167 | } |
4168 | } | |
4169 | ||
4170 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4171 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4172 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4173 | if (new_syms == NULL) |
0a1b45a2 | 4174 | return false; |
252b5132 RH |
4175 | |
4176 | for (idx = 0; idx < symcount; idx++) | |
4177 | { | |
4178 | asymbol *sym = syms[idx]; | |
dc810e39 | 4179 | unsigned int i; |
252b5132 | 4180 | |
2633a79c AM |
4181 | if (sym_is_global (abfd, sym)) |
4182 | i = num_locals + num_globals2++; | |
d1bcae83 | 4183 | /* Don't include ignored section symbols. */ |
2633a79c | 4184 | else if (!ignore_section_sym (abfd, sym)) |
252b5132 RH |
4185 | i = num_locals2++; |
4186 | else | |
2633a79c | 4187 | continue; |
252b5132 RH |
4188 | new_syms[i] = sym; |
4189 | sym->udata.i = i + 1; | |
4190 | } | |
4191 | for (asect = abfd->sections; asect; asect = asect->next) | |
4192 | { | |
d1bcae83 L |
4193 | asymbol *sym = asect->symbol; |
4194 | if (!ignore_section_sym (abfd, sym) | |
4195 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4196 | { |
dc810e39 | 4197 | unsigned int i; |
252b5132 | 4198 | |
079e9a2f | 4199 | sect_syms[asect->index] = sym; |
252b5132 RH |
4200 | if (!sym_is_global (abfd, sym)) |
4201 | i = num_locals2++; | |
4202 | else | |
4203 | i = num_locals + num_globals2++; | |
4204 | new_syms[i] = sym; | |
4205 | sym->udata.i = i + 1; | |
4206 | } | |
4207 | } | |
4208 | ||
4209 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4210 | ||
12bd6957 | 4211 | *pnum_locals = num_locals; |
0a1b45a2 | 4212 | return true; |
252b5132 RH |
4213 | } |
4214 | ||
4215 | /* Align to the maximum file alignment that could be required for any | |
4216 | ELF data structure. */ | |
4217 | ||
268b6b39 | 4218 | static inline file_ptr |
217aa764 | 4219 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4220 | { |
4221 | return (off + align - 1) & ~(align - 1); | |
4222 | } | |
4223 | ||
4224 | /* Assign a file position to a section, optionally aligning to the | |
4225 | required section alignment. */ | |
4226 | ||
217aa764 AM |
4227 | file_ptr |
4228 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4229 | file_ptr offset, | |
0a1b45a2 | 4230 | bool align) |
252b5132 | 4231 | { |
72de5009 | 4232 | if (align && i_shdrp->sh_addralign > 1) |
1f9b1a84 | 4233 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign & -i_shdrp->sh_addralign); |
252b5132 RH |
4234 | i_shdrp->sh_offset = offset; |
4235 | if (i_shdrp->bfd_section != NULL) | |
4236 | i_shdrp->bfd_section->filepos = offset; | |
4237 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4238 | offset += i_shdrp->sh_size; | |
4239 | return offset; | |
4240 | } | |
4241 | ||
4242 | /* Compute the file positions we are going to put the sections at, and | |
4243 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4244 | is not NULL, this is being called by the ELF backend linker. */ | |
4245 | ||
0a1b45a2 | 4246 | bool |
217aa764 AM |
4247 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4248 | struct bfd_link_info *link_info) | |
252b5132 | 4249 | { |
9c5bfbb7 | 4250 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4251 | struct fake_section_arg fsargs; |
0a1b45a2 | 4252 | bool failed; |
ef10c3ac | 4253 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4254 | Elf_Internal_Shdr *shstrtab_hdr; |
0a1b45a2 | 4255 | bool need_symtab; |
252b5132 RH |
4256 | |
4257 | if (abfd->output_has_begun) | |
0a1b45a2 | 4258 | return true; |
252b5132 RH |
4259 | |
4260 | /* Do any elf backend specific processing first. */ | |
4261 | if (bed->elf_backend_begin_write_processing) | |
4262 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4263 | ||
ed7e9d0b | 4264 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
0a1b45a2 | 4265 | return false; |
252b5132 | 4266 | |
0a1b45a2 | 4267 | fsargs.failed = false; |
d4730f92 BS |
4268 | fsargs.link_info = link_info; |
4269 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4270 | if (fsargs.failed) | |
0a1b45a2 | 4271 | return false; |
252b5132 | 4272 | |
da9f89d4 | 4273 | if (!assign_section_numbers (abfd, link_info)) |
0a1b45a2 | 4274 | return false; |
252b5132 RH |
4275 | |
4276 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4277 | need_symtab = (link_info == NULL |
4278 | && (bfd_get_symcount (abfd) > 0 | |
4279 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4280 | == HAS_RELOC))); | |
4281 | if (need_symtab) | |
252b5132 RH |
4282 | { |
4283 | /* Non-zero if doing a relocatable link. */ | |
4284 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4285 | ||
3d16b64e | 4286 | if (! swap_out_syms (abfd, &strtab, relocatable_p, link_info)) |
0a1b45a2 | 4287 | return false; |
252b5132 RH |
4288 | } |
4289 | ||
0a1b45a2 | 4290 | failed = false; |
1126897b | 4291 | if (link_info == NULL) |
dbb410c3 | 4292 | { |
1126897b | 4293 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4294 | if (failed) |
0a1b45a2 | 4295 | return false; |
dbb410c3 AM |
4296 | } |
4297 | ||
252b5132 | 4298 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4299 | /* sh_name was set in init_file_header. */ |
252b5132 | 4300 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4301 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4302 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4303 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4304 | shstrtab_hdr->sh_entsize = 0; |
4305 | shstrtab_hdr->sh_link = 0; | |
4306 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4307 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4308 | shstrtab_hdr->sh_addralign = 1; |
4309 | ||
c84fca4d | 4310 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
0a1b45a2 | 4311 | return false; |
252b5132 | 4312 | |
3516e984 | 4313 | if (need_symtab) |
252b5132 RH |
4314 | { |
4315 | file_ptr off; | |
4316 | Elf_Internal_Shdr *hdr; | |
4317 | ||
12bd6957 | 4318 | off = elf_next_file_pos (abfd); |
252b5132 | 4319 | |
6a40cf0c | 4320 | hdr = & elf_symtab_hdr (abfd); |
0a1b45a2 | 4321 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4322 | |
6a40cf0c NC |
4323 | if (elf_symtab_shndx_list (abfd) != NULL) |
4324 | { | |
4325 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4326 | if (hdr->sh_size != 0) | |
0a1b45a2 | 4327 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
6a40cf0c NC |
4328 | /* FIXME: What about other symtab_shndx sections in the list ? */ |
4329 | } | |
9ad5cbcf | 4330 | |
252b5132 | 4331 | hdr = &elf_tdata (abfd)->strtab_hdr; |
0a1b45a2 | 4332 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4333 | |
12bd6957 | 4334 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4335 | |
4336 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4337 | out. */ |
252b5132 | 4338 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4339 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
0a1b45a2 | 4340 | return false; |
ef10c3ac | 4341 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4342 | } |
4343 | ||
0a1b45a2 | 4344 | abfd->output_has_begun = true; |
252b5132 | 4345 | |
0a1b45a2 | 4346 | return true; |
252b5132 RH |
4347 | } |
4348 | ||
8df52eee AM |
4349 | /* Retrieve .eh_frame_hdr. Prior to size_dynamic_sections the |
4350 | function effectively returns whether --eh-frame-hdr is given on the | |
4351 | command line. After size_dynamic_sections the result reflects | |
4352 | whether .eh_frame_hdr will actually be output (sizing isn't done | |
4353 | until ldemul_after_allocation). */ | |
4354 | ||
4355 | static asection * | |
4356 | elf_eh_frame_hdr (const struct bfd_link_info *info) | |
4357 | { | |
4358 | if (info != NULL && is_elf_hash_table (info->hash)) | |
4359 | return elf_hash_table (info)->eh_info.hdr_sec; | |
4360 | return NULL; | |
4361 | } | |
4362 | ||
8ded5a0f AM |
4363 | /* Make an initial estimate of the size of the program header. If we |
4364 | get the number wrong here, we'll redo section placement. */ | |
4365 | ||
4366 | static bfd_size_type | |
4367 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4368 | { | |
4369 | size_t segs; | |
4370 | asection *s; | |
2b05f1b7 | 4371 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4372 | |
4373 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4374 | and one for data. */ | |
4375 | segs = 2; | |
4376 | ||
4377 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4378 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4379 | { |
4380 | /* If we have a loadable interpreter section, we need a | |
4381 | PT_INTERP segment. In this case, assume we also need a | |
4382 | PT_PHDR segment, although that may not be true for all | |
4383 | targets. */ | |
e9a38e0f | 4384 | segs += 2; |
8ded5a0f AM |
4385 | } |
4386 | ||
4387 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4388 | { | |
4389 | /* We need a PT_DYNAMIC segment. */ | |
4390 | ++segs; | |
f210dcff | 4391 | } |
08a40648 | 4392 | |
ceae84aa | 4393 | if (info != NULL && info->relro) |
f210dcff L |
4394 | { |
4395 | /* We need a PT_GNU_RELRO segment. */ | |
4396 | ++segs; | |
8ded5a0f AM |
4397 | } |
4398 | ||
8df52eee | 4399 | if (elf_eh_frame_hdr (info)) |
8ded5a0f AM |
4400 | { |
4401 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4402 | ++segs; | |
4403 | } | |
4404 | ||
12bd6957 | 4405 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4406 | { |
2b05f1b7 L |
4407 | /* We need a PT_GNU_STACK segment. */ |
4408 | ++segs; | |
4409 | } | |
94b11780 | 4410 | |
0a59decb L |
4411 | s = bfd_get_section_by_name (abfd, |
4412 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4413 | if (s != NULL && s->size != 0) | |
4414 | { | |
4415 | /* We need a PT_GNU_PROPERTY segment. */ | |
4416 | ++segs; | |
4417 | } | |
4418 | ||
2b05f1b7 L |
4419 | for (s = abfd->sections; s != NULL; s = s->next) |
4420 | { | |
8ded5a0f | 4421 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4422 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4423 | { |
23e463ed | 4424 | unsigned int alignment_power; |
8ded5a0f AM |
4425 | /* We need a PT_NOTE segment. */ |
4426 | ++segs; | |
23e463ed L |
4427 | /* Try to create just one PT_NOTE segment for all adjacent |
4428 | loadable SHT_NOTE sections. gABI requires that within a | |
4429 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4430 | each note should have the same alignment. So we check | |
4431 | whether the sections are correctly aligned. */ | |
4432 | alignment_power = s->alignment_power; | |
4433 | while (s->next != NULL | |
4434 | && s->next->alignment_power == alignment_power | |
4435 | && (s->next->flags & SEC_LOAD) != 0 | |
4436 | && elf_section_type (s->next) == SHT_NOTE) | |
4437 | s = s->next; | |
8ded5a0f AM |
4438 | } |
4439 | } | |
4440 | ||
4441 | for (s = abfd->sections; s != NULL; s = s->next) | |
4442 | { | |
4443 | if (s->flags & SEC_THREAD_LOCAL) | |
4444 | { | |
4445 | /* We need a PT_TLS segment. */ | |
4446 | ++segs; | |
4447 | break; | |
4448 | } | |
4449 | } | |
4450 | ||
2b05f1b7 | 4451 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4452 | |
df3a023b AM |
4453 | if ((abfd->flags & D_PAGED) != 0 |
4454 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4455 | { | |
4456 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
c410035d AM |
4457 | bfd_vma commonpagesize; |
4458 | unsigned int page_align_power; | |
4459 | ||
4460 | if (info != NULL) | |
4461 | commonpagesize = info->commonpagesize; | |
4462 | else | |
4463 | commonpagesize = bed->commonpagesize; | |
4464 | page_align_power = bfd_log2 (commonpagesize); | |
df3a023b AM |
4465 | for (s = abfd->sections; s != NULL; s = s->next) |
4466 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4467 | { | |
4468 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4469 | { | |
4470 | _bfd_error_handler | |
4471 | /* xgettext:c-format */ | |
4472 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4473 | "sh_info field: %d"), | |
4474 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4475 | continue; | |
4476 | } | |
4477 | /* Align mbind section to page size. */ | |
4478 | if (s->alignment_power < page_align_power) | |
4479 | s->alignment_power = page_align_power; | |
4480 | segs ++; | |
4481 | } | |
4482 | } | |
4483 | ||
4484 | /* Let the backend count up any program headers it might need. */ | |
4485 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4486 | { |
4487 | int a; | |
4488 | ||
4489 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4490 | if (a == -1) | |
4491 | abort (); | |
4492 | segs += a; | |
4493 | } | |
4494 | ||
4495 | return segs * bed->s->sizeof_phdr; | |
4496 | } | |
4497 | ||
2ea37f1c NC |
4498 | /* Find the segment that contains the output_section of section. */ |
4499 | ||
4500 | Elf_Internal_Phdr * | |
4501 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4502 | { | |
4503 | struct elf_segment_map *m; | |
4504 | Elf_Internal_Phdr *p; | |
4505 | ||
12bd6957 | 4506 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4507 | m != NULL; |
4508 | m = m->next, p++) | |
4509 | { | |
4510 | int i; | |
4511 | ||
4512 | for (i = m->count - 1; i >= 0; i--) | |
4513 | if (m->sections[i] == section) | |
4514 | return p; | |
4515 | } | |
4516 | ||
4517 | return NULL; | |
4518 | } | |
4519 | ||
252b5132 RH |
4520 | /* Create a mapping from a set of sections to a program segment. */ |
4521 | ||
217aa764 AM |
4522 | static struct elf_segment_map * |
4523 | make_mapping (bfd *abfd, | |
4524 | asection **sections, | |
4525 | unsigned int from, | |
4526 | unsigned int to, | |
0a1b45a2 | 4527 | bool phdr) |
252b5132 RH |
4528 | { |
4529 | struct elf_segment_map *m; | |
4530 | unsigned int i; | |
4531 | asection **hdrpp; | |
986f0783 | 4532 | size_t amt; |
252b5132 | 4533 | |
00bee008 AM |
4534 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4535 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4536 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4537 | if (m == NULL) |
4538 | return NULL; | |
4539 | m->next = NULL; | |
4540 | m->p_type = PT_LOAD; | |
4541 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4542 | m->sections[i - from] = *hdrpp; | |
4543 | m->count = to - from; | |
4544 | ||
4545 | if (from == 0 && phdr) | |
4546 | { | |
4547 | /* Include the headers in the first PT_LOAD segment. */ | |
4548 | m->includes_filehdr = 1; | |
4549 | m->includes_phdrs = 1; | |
4550 | } | |
4551 | ||
4552 | return m; | |
4553 | } | |
4554 | ||
229fcec5 MM |
4555 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4556 | on failure. */ | |
4557 | ||
4558 | struct elf_segment_map * | |
4559 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4560 | { | |
4561 | struct elf_segment_map *m; | |
4562 | ||
a50b1753 | 4563 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4564 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4565 | if (m == NULL) |
4566 | return NULL; | |
4567 | m->next = NULL; | |
4568 | m->p_type = PT_DYNAMIC; | |
4569 | m->count = 1; | |
4570 | m->sections[0] = dynsec; | |
08a40648 | 4571 | |
229fcec5 MM |
4572 | return m; |
4573 | } | |
4574 | ||
8ded5a0f | 4575 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4576 | |
0a1b45a2 | 4577 | static bool |
3dea8fca AM |
4578 | elf_modify_segment_map (bfd *abfd, |
4579 | struct bfd_link_info *info, | |
0a1b45a2 | 4580 | bool remove_empty_load) |
252b5132 | 4581 | { |
252e386e | 4582 | struct elf_segment_map **m; |
8ded5a0f | 4583 | const struct elf_backend_data *bed; |
252b5132 | 4584 | |
8ded5a0f AM |
4585 | /* The placement algorithm assumes that non allocated sections are |
4586 | not in PT_LOAD segments. We ensure this here by removing such | |
4587 | sections from the segment map. We also remove excluded | |
252e386e AM |
4588 | sections. Finally, any PT_LOAD segment without sections is |
4589 | removed. */ | |
12bd6957 | 4590 | m = &elf_seg_map (abfd); |
252e386e | 4591 | while (*m) |
8ded5a0f AM |
4592 | { |
4593 | unsigned int i, new_count; | |
252b5132 | 4594 | |
252e386e | 4595 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4596 | { |
252e386e AM |
4597 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4598 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4599 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4600 | { |
252e386e AM |
4601 | (*m)->sections[new_count] = (*m)->sections[i]; |
4602 | new_count++; | |
8ded5a0f AM |
4603 | } |
4604 | } | |
252e386e | 4605 | (*m)->count = new_count; |
252b5132 | 4606 | |
1a9ccd70 NC |
4607 | if (remove_empty_load |
4608 | && (*m)->p_type == PT_LOAD | |
4609 | && (*m)->count == 0 | |
4610 | && !(*m)->includes_phdrs) | |
252e386e AM |
4611 | *m = (*m)->next; |
4612 | else | |
4613 | m = &(*m)->next; | |
8ded5a0f | 4614 | } |
252b5132 | 4615 | |
8ded5a0f AM |
4616 | bed = get_elf_backend_data (abfd); |
4617 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4618 | { |
252e386e | 4619 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
0a1b45a2 | 4620 | return false; |
252b5132 | 4621 | } |
252b5132 | 4622 | |
0a1b45a2 | 4623 | return true; |
8ded5a0f | 4624 | } |
252b5132 | 4625 | |
dbc88fc1 AM |
4626 | #define IS_TBSS(s) \ |
4627 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4628 | ||
e2cbf4df L |
4629 | /* Set up a mapping from BFD sections to program segments. Update |
4630 | NEED_LAYOUT if the section layout is changed. */ | |
252b5132 | 4631 | |
0a1b45a2 | 4632 | bool |
e2cbf4df L |
4633 | _bfd_elf_map_sections_to_segments (bfd *abfd, |
4634 | struct bfd_link_info *info, | |
23cc1de5 | 4635 | bool *need_layout) |
8ded5a0f AM |
4636 | { |
4637 | unsigned int count; | |
4638 | struct elf_segment_map *m; | |
4639 | asection **sections = NULL; | |
4640 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
0a1b45a2 | 4641 | bool no_user_phdrs; |
252b5132 | 4642 | |
12bd6957 | 4643 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4644 | |
4645 | if (info != NULL) | |
23cc1de5 L |
4646 | { |
4647 | info->user_phdrs = !no_user_phdrs; | |
4648 | ||
4649 | /* Size the relative relocations if DT_RELR is enabled. */ | |
4650 | if (info->enable_dt_relr | |
4651 | && need_layout != NULL | |
4652 | && bed->size_relative_relocs | |
4653 | && !bed->size_relative_relocs (info, need_layout)) | |
4654 | info->callbacks->einfo | |
4655 | (_("%F%P: failed to size relative relocations\n")); | |
4656 | } | |
d324f6d6 | 4657 | |
3dea8fca | 4658 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4659 | { |
8ded5a0f AM |
4660 | asection *s; |
4661 | unsigned int i; | |
4662 | struct elf_segment_map *mfirst; | |
4663 | struct elf_segment_map **pm; | |
4664 | asection *last_hdr; | |
4665 | bfd_vma last_size; | |
00bee008 | 4666 | unsigned int hdr_index; |
8ded5a0f AM |
4667 | bfd_vma maxpagesize; |
4668 | asection **hdrpp; | |
0a1b45a2 AM |
4669 | bool phdr_in_segment; |
4670 | bool writable; | |
4671 | bool executable; | |
446f7ed5 | 4672 | unsigned int tls_count = 0; |
8ded5a0f | 4673 | asection *first_tls = NULL; |
a91e1603 | 4674 | asection *first_mbind = NULL; |
8ded5a0f | 4675 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4676 | size_t amt; |
66631823 CE |
4677 | bfd_vma addr_mask, wrap_to = 0; /* Bytes. */ |
4678 | bfd_size_type phdr_size; /* Octets/bytes. */ | |
502794d4 | 4679 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 4680 | |
8ded5a0f | 4681 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4682 | |
446f7ed5 AM |
4683 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4684 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4685 | if (sections == NULL) |
252b5132 | 4686 | goto error_return; |
252b5132 | 4687 | |
8d06853e AM |
4688 | /* Calculate top address, avoiding undefined behaviour of shift |
4689 | left operator when shift count is equal to size of type | |
4690 | being shifted. */ | |
4691 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4692 | addr_mask = (addr_mask << 1) + 1; | |
4693 | ||
8ded5a0f AM |
4694 | i = 0; |
4695 | for (s = abfd->sections; s != NULL; s = s->next) | |
4696 | { | |
4697 | if ((s->flags & SEC_ALLOC) != 0) | |
4698 | { | |
48db3297 AM |
4699 | /* target_index is unused until bfd_elf_final_link |
4700 | starts output of section symbols. Use it to make | |
4701 | qsort stable. */ | |
4702 | s->target_index = i; | |
8ded5a0f AM |
4703 | sections[i] = s; |
4704 | ++i; | |
8d06853e | 4705 | /* A wrapping section potentially clashes with header. */ |
66631823 CE |
4706 | if (((s->lma + s->size / opb) & addr_mask) < (s->lma & addr_mask)) |
4707 | wrap_to = (s->lma + s->size / opb) & addr_mask; | |
8ded5a0f AM |
4708 | } |
4709 | } | |
4710 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4711 | count = i; | |
252b5132 | 4712 | |
8ded5a0f | 4713 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4714 | |
64029e93 AM |
4715 | phdr_size = elf_program_header_size (abfd); |
4716 | if (phdr_size == (bfd_size_type) -1) | |
4717 | phdr_size = get_program_header_size (abfd, info); | |
4718 | phdr_size += bed->s->sizeof_ehdr; | |
502794d4 CE |
4719 | /* phdr_size is compared to LMA values which are in bytes. */ |
4720 | phdr_size /= opb; | |
c410035d AM |
4721 | if (info != NULL) |
4722 | maxpagesize = info->maxpagesize; | |
4723 | else | |
4724 | maxpagesize = bed->maxpagesize; | |
64029e93 AM |
4725 | if (maxpagesize == 0) |
4726 | maxpagesize = 1; | |
4727 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4728 | if (count != 0 | |
4729 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4730 | >= (phdr_size & (maxpagesize - 1)))) | |
4731 | /* For compatibility with old scripts that may not be using | |
4732 | SIZEOF_HEADERS, add headers when it looks like space has | |
4733 | been left for them. */ | |
0a1b45a2 | 4734 | phdr_in_segment = true; |
252b5132 | 4735 | |
64029e93 | 4736 | /* Build the mapping. */ |
8ded5a0f AM |
4737 | mfirst = NULL; |
4738 | pm = &mfirst; | |
252b5132 | 4739 | |
8ded5a0f AM |
4740 | /* If we have a .interp section, then create a PT_PHDR segment for |
4741 | the program headers and a PT_INTERP segment for the .interp | |
4742 | section. */ | |
4743 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4744 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4745 | { |
4746 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4747 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4748 | if (m == NULL) |
4749 | goto error_return; | |
4750 | m->next = NULL; | |
4751 | m->p_type = PT_PHDR; | |
f882209d | 4752 | m->p_flags = PF_R; |
8ded5a0f AM |
4753 | m->p_flags_valid = 1; |
4754 | m->includes_phdrs = 1; | |
0a1b45a2 | 4755 | phdr_in_segment = true; |
8ded5a0f AM |
4756 | *pm = m; |
4757 | pm = &m->next; | |
252b5132 | 4758 | |
8ded5a0f | 4759 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4760 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4761 | if (m == NULL) |
4762 | goto error_return; | |
4763 | m->next = NULL; | |
4764 | m->p_type = PT_INTERP; | |
4765 | m->count = 1; | |
4766 | m->sections[0] = s; | |
4767 | ||
4768 | *pm = m; | |
4769 | pm = &m->next; | |
252b5132 | 4770 | } |
8ded5a0f AM |
4771 | |
4772 | /* Look through the sections. We put sections in the same program | |
4773 | segment when the start of the second section can be placed within | |
4774 | a few bytes of the end of the first section. */ | |
4775 | last_hdr = NULL; | |
4776 | last_size = 0; | |
00bee008 | 4777 | hdr_index = 0; |
0a1b45a2 AM |
4778 | writable = false; |
4779 | executable = false; | |
8ded5a0f AM |
4780 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4781 | if (dynsec != NULL | |
4782 | && (dynsec->flags & SEC_LOAD) == 0) | |
4783 | dynsec = NULL; | |
4784 | ||
64029e93 | 4785 | if ((abfd->flags & D_PAGED) == 0) |
0a1b45a2 | 4786 | phdr_in_segment = false; |
64029e93 | 4787 | |
8ded5a0f AM |
4788 | /* Deal with -Ttext or something similar such that the first section |
4789 | is not adjacent to the program headers. This is an | |
4790 | approximation, since at this point we don't know exactly how many | |
4791 | program headers we will need. */ | |
64029e93 | 4792 | if (phdr_in_segment && count > 0) |
252b5132 | 4793 | { |
66631823 | 4794 | bfd_vma phdr_lma; /* Bytes. */ |
0a1b45a2 | 4795 | bool separate_phdr = false; |
64029e93 AM |
4796 | |
4797 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4798 | if (info != NULL | |
4799 | && info->separate_code | |
4800 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4801 | { |
64029e93 AM |
4802 | /* If data sections should be separate from code and |
4803 | thus not executable, and the first section is | |
4804 | executable then put the file and program headers in | |
4805 | their own PT_LOAD. */ | |
0a1b45a2 | 4806 | separate_phdr = true; |
64029e93 AM |
4807 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) |
4808 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4809 | { | |
4810 | /* The file and program headers are currently on the | |
4811 | same page as the first section. Put them on the | |
4812 | previous page if we can. */ | |
4813 | if (phdr_lma >= maxpagesize) | |
4814 | phdr_lma -= maxpagesize; | |
4815 | else | |
0a1b45a2 | 4816 | separate_phdr = false; |
64029e93 AM |
4817 | } |
4818 | } | |
4819 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4820 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4821 | /* If file and program headers would be placed at the end | |
4822 | of memory then it's probably better to omit them. */ | |
0a1b45a2 | 4823 | phdr_in_segment = false; |
64029e93 AM |
4824 | else if (phdr_lma < wrap_to) |
4825 | /* If a section wraps around to where we'll be placing | |
4826 | file and program headers, then the headers will be | |
4827 | overwritten. */ | |
0a1b45a2 | 4828 | phdr_in_segment = false; |
64029e93 AM |
4829 | else if (separate_phdr) |
4830 | { | |
4831 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4832 | if (m == NULL) | |
4833 | goto error_return; | |
66631823 | 4834 | m->p_paddr = phdr_lma * opb; |
64029e93 AM |
4835 | m->p_vaddr_offset |
4836 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4837 | m->p_paddr_valid = 1; | |
4838 | *pm = m; | |
4839 | pm = &m->next; | |
0a1b45a2 | 4840 | phdr_in_segment = false; |
1a9ccd70 | 4841 | } |
252b5132 RH |
4842 | } |
4843 | ||
8ded5a0f | 4844 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4845 | { |
8ded5a0f | 4846 | asection *hdr; |
0a1b45a2 | 4847 | bool new_segment; |
8ded5a0f AM |
4848 | |
4849 | hdr = *hdrpp; | |
4850 | ||
4851 | /* See if this section and the last one will fit in the same | |
4852 | segment. */ | |
4853 | ||
4854 | if (last_hdr == NULL) | |
4855 | { | |
4856 | /* If we don't have a segment yet, then we don't need a new | |
4857 | one (we build the last one after this loop). */ | |
0a1b45a2 | 4858 | new_segment = false; |
8ded5a0f AM |
4859 | } |
4860 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4861 | { | |
4862 | /* If this section has a different relation between the | |
4863 | virtual address and the load address, then we need a new | |
4864 | segment. */ | |
0a1b45a2 | 4865 | new_segment = true; |
8ded5a0f | 4866 | } |
b5599592 AM |
4867 | else if (hdr->lma < last_hdr->lma + last_size |
4868 | || last_hdr->lma + last_size < last_hdr->lma) | |
4869 | { | |
4870 | /* If this section has a load address that makes it overlap | |
4871 | the previous section, then we need a new segment. */ | |
0a1b45a2 | 4872 | new_segment = true; |
b5599592 | 4873 | } |
76cb3a89 AM |
4874 | else if ((abfd->flags & D_PAGED) != 0 |
4875 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4876 | == (hdr->lma & -maxpagesize))) | |
4877 | { | |
4878 | /* If we are demand paged then we can't map two disk | |
4879 | pages onto the same memory page. */ | |
0a1b45a2 | 4880 | new_segment = false; |
76cb3a89 | 4881 | } |
39948a60 NC |
4882 | /* In the next test we have to be careful when last_hdr->lma is close |
4883 | to the end of the address space. If the aligned address wraps | |
4884 | around to the start of the address space, then there are no more | |
4885 | pages left in memory and it is OK to assume that the current | |
4886 | section can be included in the current segment. */ | |
76cb3a89 AM |
4887 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4888 | + maxpagesize > last_hdr->lma) | |
4889 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4890 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4891 | { |
4892 | /* If putting this section in this segment would force us to | |
4893 | skip a page in the segment, then we need a new segment. */ | |
0a1b45a2 | 4894 | new_segment = true; |
8ded5a0f AM |
4895 | } |
4896 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4897 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4898 | { |
e5654c0f AM |
4899 | /* We don't want to put a loaded section after a |
4900 | nonloaded (ie. bss style) section in the same segment | |
4901 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4902 | Consider .tbss sections as loaded for this purpose. */ |
0a1b45a2 | 4903 | new_segment = true; |
8ded5a0f AM |
4904 | } |
4905 | else if ((abfd->flags & D_PAGED) == 0) | |
4906 | { | |
4907 | /* If the file is not demand paged, which means that we | |
4908 | don't require the sections to be correctly aligned in the | |
4909 | file, then there is no other reason for a new segment. */ | |
0a1b45a2 | 4910 | new_segment = false; |
8ded5a0f | 4911 | } |
2888249f L |
4912 | else if (info != NULL |
4913 | && info->separate_code | |
4914 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4915 | { | |
0a1b45a2 | 4916 | new_segment = true; |
2888249f | 4917 | } |
8ded5a0f | 4918 | else if (! writable |
76cb3a89 | 4919 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4920 | { |
4921 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4922 | segment. */ |
0a1b45a2 | 4923 | new_segment = true; |
8ded5a0f AM |
4924 | } |
4925 | else | |
4926 | { | |
4927 | /* Otherwise, we can use the same segment. */ | |
0a1b45a2 | 4928 | new_segment = false; |
8ded5a0f AM |
4929 | } |
4930 | ||
2889e75b | 4931 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4932 | if (last_hdr != NULL |
4933 | && info != NULL | |
4934 | && info->callbacks->override_segment_assignment != NULL) | |
4935 | new_segment | |
4936 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4937 | last_hdr, | |
4938 | new_segment); | |
2889e75b | 4939 | |
8ded5a0f AM |
4940 | if (! new_segment) |
4941 | { | |
4942 | if ((hdr->flags & SEC_READONLY) == 0) | |
0a1b45a2 | 4943 | writable = true; |
2888249f | 4944 | if ((hdr->flags & SEC_CODE) != 0) |
0a1b45a2 | 4945 | executable = true; |
8ded5a0f AM |
4946 | last_hdr = hdr; |
4947 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4948 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
8ded5a0f AM |
4949 | continue; |
4950 | } | |
4951 | ||
4952 | /* We need a new program segment. We must create a new program | |
00bee008 | 4953 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4954 | |
00bee008 | 4955 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4956 | if (m == NULL) |
4957 | goto error_return; | |
4958 | ||
4959 | *pm = m; | |
4960 | pm = &m->next; | |
4961 | ||
252b5132 | 4962 | if ((hdr->flags & SEC_READONLY) == 0) |
0a1b45a2 | 4963 | writable = true; |
8ded5a0f | 4964 | else |
0a1b45a2 | 4965 | writable = false; |
8ded5a0f | 4966 | |
2888249f | 4967 | if ((hdr->flags & SEC_CODE) == 0) |
0a1b45a2 | 4968 | executable = false; |
2888249f | 4969 | else |
0a1b45a2 | 4970 | executable = true; |
2888249f | 4971 | |
baaff79e JJ |
4972 | last_hdr = hdr; |
4973 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4974 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
00bee008 | 4975 | hdr_index = i; |
0a1b45a2 | 4976 | phdr_in_segment = false; |
252b5132 RH |
4977 | } |
4978 | ||
86b2281f AM |
4979 | /* Create a final PT_LOAD program segment, but not if it's just |
4980 | for .tbss. */ | |
4981 | if (last_hdr != NULL | |
00bee008 | 4982 | && (i - hdr_index != 1 |
dbc88fc1 | 4983 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4984 | { |
00bee008 | 4985 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4986 | if (m == NULL) |
4987 | goto error_return; | |
252b5132 | 4988 | |
8ded5a0f AM |
4989 | *pm = m; |
4990 | pm = &m->next; | |
4991 | } | |
252b5132 | 4992 | |
8ded5a0f AM |
4993 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4994 | if (dynsec != NULL) | |
4995 | { | |
4996 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4997 | if (m == NULL) | |
4998 | goto error_return; | |
4999 | *pm = m; | |
5000 | pm = &m->next; | |
5001 | } | |
252b5132 | 5002 | |
23e463ed | 5003 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
5004 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5005 | because if we link together nonloadable .note sections and | |
5006 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5007 | in the output file. */ |
8ded5a0f AM |
5008 | for (s = abfd->sections; s != NULL; s = s->next) |
5009 | { | |
5010 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5011 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5012 | { |
1c5265b5 | 5013 | asection *s2; |
23e463ed | 5014 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5015 | |
5016 | count = 1; | |
23e463ed L |
5017 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5018 | { | |
5019 | if (s2->next->alignment_power == alignment_power | |
5020 | && (s2->next->flags & SEC_LOAD) != 0 | |
5021 | && elf_section_type (s2->next) == SHT_NOTE | |
66631823 | 5022 | && align_power (s2->lma + s2->size / opb, |
23e463ed L |
5023 | alignment_power) |
5024 | == s2->next->lma) | |
5025 | count++; | |
5026 | else | |
5027 | break; | |
5028 | } | |
00bee008 AM |
5029 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5030 | amt += count * sizeof (asection *); | |
a50b1753 | 5031 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5032 | if (m == NULL) |
5033 | goto error_return; | |
5034 | m->next = NULL; | |
5035 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5036 | m->count = count; |
5037 | while (count > 1) | |
5038 | { | |
5039 | m->sections[m->count - count--] = s; | |
5040 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5041 | s = s->next; | |
5042 | } | |
5043 | m->sections[m->count - 1] = s; | |
5044 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5045 | *pm = m; |
5046 | pm = &m->next; | |
5047 | } | |
5048 | if (s->flags & SEC_THREAD_LOCAL) | |
5049 | { | |
5050 | if (! tls_count) | |
5051 | first_tls = s; | |
5052 | tls_count++; | |
5053 | } | |
a91e1603 L |
5054 | if (first_mbind == NULL |
5055 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5056 | first_mbind = s; | |
8ded5a0f | 5057 | } |
252b5132 | 5058 | |
8ded5a0f AM |
5059 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5060 | if (tls_count > 0) | |
5061 | { | |
00bee008 AM |
5062 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5063 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5064 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5065 | if (m == NULL) |
5066 | goto error_return; | |
5067 | m->next = NULL; | |
5068 | m->p_type = PT_TLS; | |
5069 | m->count = tls_count; | |
5070 | /* Mandated PF_R. */ | |
5071 | m->p_flags = PF_R; | |
5072 | m->p_flags_valid = 1; | |
d923cae0 | 5073 | s = first_tls; |
446f7ed5 | 5074 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5075 | { |
d923cae0 L |
5076 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5077 | { | |
5078 | _bfd_error_handler | |
871b3ab2 | 5079 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5080 | s = first_tls; |
5081 | i = 0; | |
446f7ed5 | 5082 | while (i < tls_count) |
d923cae0 L |
5083 | { |
5084 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5085 | { | |
871b3ab2 | 5086 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5087 | i++; |
5088 | } | |
5089 | else | |
871b3ab2 | 5090 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5091 | s = s->next; |
5092 | } | |
5093 | bfd_set_error (bfd_error_bad_value); | |
5094 | goto error_return; | |
5095 | } | |
5096 | m->sections[i] = s; | |
5097 | s = s->next; | |
8ded5a0f | 5098 | } |
252b5132 | 5099 | |
8ded5a0f AM |
5100 | *pm = m; |
5101 | pm = &m->next; | |
5102 | } | |
252b5132 | 5103 | |
df3a023b AM |
5104 | if (first_mbind |
5105 | && (abfd->flags & D_PAGED) != 0 | |
5106 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5107 | for (s = first_mbind; s != NULL; s = s->next) |
5108 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5109 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5110 | { |
5111 | /* Mandated PF_R. */ | |
5112 | unsigned long p_flags = PF_R; | |
5113 | if ((s->flags & SEC_READONLY) == 0) | |
5114 | p_flags |= PF_W; | |
5115 | if ((s->flags & SEC_CODE) != 0) | |
5116 | p_flags |= PF_X; | |
5117 | ||
5118 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5119 | m = bfd_zalloc (abfd, amt); | |
5120 | if (m == NULL) | |
5121 | goto error_return; | |
5122 | m->next = NULL; | |
5123 | m->p_type = (PT_GNU_MBIND_LO | |
5124 | + elf_section_data (s)->this_hdr.sh_info); | |
5125 | m->count = 1; | |
5126 | m->p_flags_valid = 1; | |
5127 | m->sections[0] = s; | |
5128 | m->p_flags = p_flags; | |
5129 | ||
5130 | *pm = m; | |
5131 | pm = &m->next; | |
5132 | } | |
5133 | ||
0a59decb L |
5134 | s = bfd_get_section_by_name (abfd, |
5135 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5136 | if (s != NULL && s->size != 0) | |
5137 | { | |
5138 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5139 | m = bfd_zalloc (abfd, amt); | |
5140 | if (m == NULL) | |
5141 | goto error_return; | |
5142 | m->next = NULL; | |
5143 | m->p_type = PT_GNU_PROPERTY; | |
5144 | m->count = 1; | |
5145 | m->p_flags_valid = 1; | |
5146 | m->sections[0] = s; | |
5147 | m->p_flags = PF_R; | |
5148 | *pm = m; | |
5149 | pm = &m->next; | |
5150 | } | |
5151 | ||
8ded5a0f AM |
5152 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5153 | segment. */ | |
8df52eee | 5154 | eh_frame_hdr = elf_eh_frame_hdr (info); |
8ded5a0f AM |
5155 | if (eh_frame_hdr != NULL |
5156 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5157 | { |
dc810e39 | 5158 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5159 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5160 | if (m == NULL) |
5161 | goto error_return; | |
5162 | m->next = NULL; | |
8ded5a0f | 5163 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5164 | m->count = 1; |
8ded5a0f | 5165 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5166 | |
5167 | *pm = m; | |
5168 | pm = &m->next; | |
5169 | } | |
13ae64f3 | 5170 | |
12bd6957 | 5171 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5172 | { |
8ded5a0f | 5173 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5174 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5175 | if (m == NULL) |
5176 | goto error_return; | |
5177 | m->next = NULL; | |
2b05f1b7 | 5178 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5179 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5180 | m->p_align = bed->stack_align; |
8ded5a0f | 5181 | m->p_flags_valid = 1; |
04c3a755 NS |
5182 | m->p_align_valid = m->p_align != 0; |
5183 | if (info->stacksize > 0) | |
5184 | { | |
5185 | m->p_size = info->stacksize; | |
5186 | m->p_size_valid = 1; | |
5187 | } | |
252b5132 | 5188 | |
8ded5a0f AM |
5189 | *pm = m; |
5190 | pm = &m->next; | |
5191 | } | |
65765700 | 5192 | |
ceae84aa | 5193 | if (info != NULL && info->relro) |
8ded5a0f | 5194 | { |
f210dcff L |
5195 | for (m = mfirst; m != NULL; m = m->next) |
5196 | { | |
3832a4d8 AM |
5197 | if (m->p_type == PT_LOAD |
5198 | && m->count != 0 | |
5199 | && m->sections[0]->vma >= info->relro_start | |
5200 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5201 | { |
3832a4d8 AM |
5202 | i = m->count; |
5203 | while (--i != (unsigned) -1) | |
ec2e748a NC |
5204 | { |
5205 | if (m->sections[i]->size > 0 | |
5206 | && (m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5207 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5208 | break; | |
5209 | } | |
3832a4d8 | 5210 | |
43a8475c | 5211 | if (i != (unsigned) -1) |
f210dcff L |
5212 | break; |
5213 | } | |
be01b344 | 5214 | } |
f210dcff L |
5215 | |
5216 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5217 | if (m != NULL) | |
5218 | { | |
5219 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5220 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5221 | if (m == NULL) |
5222 | goto error_return; | |
5223 | m->next = NULL; | |
5224 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5225 | *pm = m; |
5226 | pm = &m->next; | |
5227 | } | |
8ded5a0f | 5228 | } |
9ee5e499 | 5229 | |
8ded5a0f | 5230 | free (sections); |
12bd6957 | 5231 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5232 | } |
5233 | ||
3dea8fca | 5234 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
0a1b45a2 | 5235 | return false; |
8c37241b | 5236 | |
12bd6957 | 5237 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5238 | ++count; |
12bd6957 | 5239 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5240 | |
0a1b45a2 | 5241 | return true; |
252b5132 RH |
5242 | |
5243 | error_return: | |
c9594989 | 5244 | free (sections); |
0a1b45a2 | 5245 | return false; |
252b5132 RH |
5246 | } |
5247 | ||
5248 | /* Sort sections by address. */ | |
5249 | ||
5250 | static int | |
217aa764 | 5251 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5252 | { |
5253 | const asection *sec1 = *(const asection **) arg1; | |
5254 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5255 | bfd_size_type size1, size2; |
252b5132 RH |
5256 | |
5257 | /* Sort by LMA first, since this is the address used to | |
5258 | place the section into a segment. */ | |
5259 | if (sec1->lma < sec2->lma) | |
5260 | return -1; | |
5261 | else if (sec1->lma > sec2->lma) | |
5262 | return 1; | |
5263 | ||
5264 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5265 | the same, and this will do nothing. */ | |
5266 | if (sec1->vma < sec2->vma) | |
5267 | return -1; | |
5268 | else if (sec1->vma > sec2->vma) | |
5269 | return 1; | |
5270 | ||
5271 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5272 | ||
8d748d1d AM |
5273 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 \ |
5274 | && (x)->size != 0) | |
252b5132 RH |
5275 | |
5276 | if (TOEND (sec1)) | |
5277 | { | |
48db3297 | 5278 | if (!TOEND (sec2)) |
252b5132 RH |
5279 | return 1; |
5280 | } | |
00a7cdc5 | 5281 | else if (TOEND (sec2)) |
252b5132 RH |
5282 | return -1; |
5283 | ||
5284 | #undef TOEND | |
5285 | ||
00a7cdc5 NC |
5286 | /* Sort by size, to put zero sized sections |
5287 | before others at the same address. */ | |
252b5132 | 5288 | |
eea6121a AM |
5289 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5290 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5291 | |
5292 | if (size1 < size2) | |
252b5132 | 5293 | return -1; |
eecdbe52 | 5294 | if (size1 > size2) |
252b5132 RH |
5295 | return 1; |
5296 | ||
5297 | return sec1->target_index - sec2->target_index; | |
5298 | } | |
5299 | ||
30fe1832 AM |
5300 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5301 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5302 | ||
5303 | static int | |
5304 | elf_sort_segments (const void *arg1, const void *arg2) | |
5305 | { | |
5306 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5307 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5308 | ||
5309 | if (m1->p_type != m2->p_type) | |
5310 | { | |
5311 | if (m1->p_type == PT_NULL) | |
5312 | return 1; | |
5313 | if (m2->p_type == PT_NULL) | |
5314 | return -1; | |
5315 | return m1->p_type < m2->p_type ? -1 : 1; | |
5316 | } | |
5317 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5318 | return m1->includes_filehdr ? -1 : 1; | |
5319 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5320 | return m1->no_sort_lma ? -1 : 1; | |
5321 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5322 | { | |
4b3ecb3b | 5323 | bfd_vma lma1, lma2; /* Octets. */ |
30fe1832 AM |
5324 | lma1 = 0; |
5325 | if (m1->p_paddr_valid) | |
4b3ecb3b | 5326 | lma1 = m1->p_paddr; |
30fe1832 | 5327 | else if (m1->count != 0) |
4b3ecb3b AM |
5328 | { |
5329 | unsigned int opb = bfd_octets_per_byte (m1->sections[0]->owner, | |
5330 | m1->sections[0]); | |
5331 | lma1 = (m1->sections[0]->lma + m1->p_vaddr_offset) * opb; | |
5332 | } | |
30fe1832 AM |
5333 | lma2 = 0; |
5334 | if (m2->p_paddr_valid) | |
4b3ecb3b | 5335 | lma2 = m2->p_paddr; |
30fe1832 | 5336 | else if (m2->count != 0) |
4b3ecb3b AM |
5337 | { |
5338 | unsigned int opb = bfd_octets_per_byte (m2->sections[0]->owner, | |
5339 | m2->sections[0]); | |
5340 | lma2 = (m2->sections[0]->lma + m2->p_vaddr_offset) * opb; | |
5341 | } | |
30fe1832 AM |
5342 | if (lma1 != lma2) |
5343 | return lma1 < lma2 ? -1 : 1; | |
5344 | } | |
5345 | if (m1->idx != m2->idx) | |
5346 | return m1->idx < m2->idx ? -1 : 1; | |
5347 | return 0; | |
5348 | } | |
5349 | ||
340b6d91 AC |
5350 | /* Ian Lance Taylor writes: |
5351 | ||
5352 | We shouldn't be using % with a negative signed number. That's just | |
5353 | not good. We have to make sure either that the number is not | |
5354 | negative, or that the number has an unsigned type. When the types | |
5355 | are all the same size they wind up as unsigned. When file_ptr is a | |
5356 | larger signed type, the arithmetic winds up as signed long long, | |
5357 | which is wrong. | |
5358 | ||
5359 | What we're trying to say here is something like ``increase OFF by | |
5360 | the least amount that will cause it to be equal to the VMA modulo | |
5361 | the page size.'' */ | |
5362 | /* In other words, something like: | |
5363 | ||
5364 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5365 | off_offset = off % bed->maxpagesize; | |
5366 | if (vma_offset < off_offset) | |
5367 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5368 | else | |
5369 | adjustment = vma_offset - off_offset; | |
08a40648 | 5370 | |
de194d85 | 5371 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5372 | |
5373 | static file_ptr | |
5374 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5375 | { | |
dc9155b2 NC |
5376 | /* PR binutils/16199: Handle an alignment of zero. */ |
5377 | if (maxpagesize == 0) | |
5378 | maxpagesize = 1; | |
340b6d91 AC |
5379 | return ((vma - off) % maxpagesize); |
5380 | } | |
5381 | ||
6d33f217 L |
5382 | static void |
5383 | print_segment_map (const struct elf_segment_map *m) | |
5384 | { | |
5385 | unsigned int j; | |
5386 | const char *pt = get_segment_type (m->p_type); | |
5387 | char buf[32]; | |
5388 | ||
5389 | if (pt == NULL) | |
5390 | { | |
5391 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5392 | sprintf (buf, "LOPROC+%7.7x", | |
5393 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5394 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5395 | sprintf (buf, "LOOS+%7.7x", | |
5396 | (unsigned int) (m->p_type - PT_LOOS)); | |
5397 | else | |
5398 | snprintf (buf, sizeof (buf), "%8.8x", | |
5399 | (unsigned int) m->p_type); | |
5400 | pt = buf; | |
5401 | } | |
4a97a0e5 | 5402 | fflush (stdout); |
6d33f217 L |
5403 | fprintf (stderr, "%s:", pt); |
5404 | for (j = 0; j < m->count; j++) | |
5405 | fprintf (stderr, " %s", m->sections [j]->name); | |
5406 | putc ('\n',stderr); | |
4a97a0e5 | 5407 | fflush (stderr); |
6d33f217 L |
5408 | } |
5409 | ||
0a1b45a2 | 5410 | static bool |
32812159 AM |
5411 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) |
5412 | { | |
5413 | void *buf; | |
0a1b45a2 | 5414 | bool ret; |
32812159 AM |
5415 | |
5416 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
0a1b45a2 | 5417 | return false; |
32812159 AM |
5418 | buf = bfd_zmalloc (len); |
5419 | if (buf == NULL) | |
0a1b45a2 | 5420 | return false; |
32812159 AM |
5421 | ret = bfd_bwrite (buf, len, abfd) == len; |
5422 | free (buf); | |
5423 | return ret; | |
5424 | } | |
5425 | ||
252b5132 RH |
5426 | /* Assign file positions to the sections based on the mapping from |
5427 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5428 | the file header. */ |
252b5132 | 5429 | |
0a1b45a2 | 5430 | static bool |
f3520d2f AM |
5431 | assign_file_positions_for_load_sections (bfd *abfd, |
5432 | struct bfd_link_info *link_info) | |
252b5132 RH |
5433 | { |
5434 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5435 | struct elf_segment_map *m; |
30fe1832 | 5436 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5437 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5438 | Elf_Internal_Phdr *p; |
502794d4 | 5439 | file_ptr off; /* Octets. */ |
3f570048 | 5440 | bfd_size_type maxpagesize; |
74e315db L |
5441 | bfd_size_type p_align; |
5442 | bool p_align_p = false; | |
30fe1832 | 5443 | unsigned int alloc, actual; |
0920dee7 | 5444 | unsigned int i, j; |
30fe1832 | 5445 | struct elf_segment_map **sorted_seg_map; |
502794d4 | 5446 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 5447 | |
e36284ab | 5448 | if (link_info == NULL |
e2cbf4df | 5449 | && !_bfd_elf_map_sections_to_segments (abfd, link_info, NULL)) |
0a1b45a2 | 5450 | return false; |
252b5132 | 5451 | |
8ded5a0f | 5452 | alloc = 0; |
12bd6957 | 5453 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5454 | m->idx = alloc++; |
252b5132 | 5455 | |
82f2dbf7 NC |
5456 | if (alloc) |
5457 | { | |
5458 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5459 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5460 | } | |
5461 | else | |
5462 | { | |
5463 | /* PR binutils/12467. */ | |
5464 | elf_elfheader (abfd)->e_phoff = 0; | |
5465 | elf_elfheader (abfd)->e_phentsize = 0; | |
5466 | } | |
d324f6d6 | 5467 | |
8ded5a0f | 5468 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5469 | |
12bd6957 | 5470 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5471 | { |
5472 | actual = alloc; | |
5473 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5474 | } | |
8ded5a0f | 5475 | else |
30fe1832 AM |
5476 | { |
5477 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5478 | BFD_ASSERT (elf_program_header_size (abfd) | |
5479 | == actual * bed->s->sizeof_phdr); | |
5480 | BFD_ASSERT (actual >= alloc); | |
5481 | } | |
252b5132 RH |
5482 | |
5483 | if (alloc == 0) | |
f3520d2f | 5484 | { |
12bd6957 | 5485 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
0a1b45a2 | 5486 | return true; |
f3520d2f | 5487 | } |
252b5132 | 5488 | |
12bd6957 | 5489 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5490 | see assign_file_positions_except_relocs, so make sure we have |
5491 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5492 | The variable alloc contains the computed need, while |
5493 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5494 | layout. |
5495 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5496 | where the layout is forced to according to a larger size in the | |
5497 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5498 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5499 | + alloc * sizeof (*sorted_seg_map))); | |
5500 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5501 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5502 | if (phdrs == NULL) |
0a1b45a2 | 5503 | return false; |
252b5132 | 5504 | |
30fe1832 | 5505 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5506 | { |
30fe1832 | 5507 | sorted_seg_map[j] = m; |
252b5132 | 5508 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5509 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5510 | not be done to the PT_NOTE section of a corefile, which may |
5511 | contain several pseudo-sections artificially created by bfd. | |
5512 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5513 | if (m->count > 1 |
5514 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5515 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5516 | { |
5517 | for (i = 0; i < m->count; i++) | |
5518 | m->sections[i]->target_index = i; | |
5519 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5520 | elf_sort_sections); | |
5521 | } | |
30fe1832 AM |
5522 | } |
5523 | if (alloc > 1) | |
5524 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5525 | elf_sort_segments); | |
5526 | ||
74e315db | 5527 | p_align = bed->p_align; |
30fe1832 AM |
5528 | maxpagesize = 1; |
5529 | if ((abfd->flags & D_PAGED) != 0) | |
c410035d AM |
5530 | { |
5531 | if (link_info != NULL) | |
5532 | maxpagesize = link_info->maxpagesize; | |
5533 | else | |
5534 | maxpagesize = bed->maxpagesize; | |
5535 | } | |
30fe1832 AM |
5536 | |
5537 | /* Sections must map to file offsets past the ELF file header. */ | |
5538 | off = bed->s->sizeof_ehdr; | |
5539 | /* And if one of the PT_LOAD headers doesn't include the program | |
5540 | headers then we'll be mapping program headers in the usual | |
5541 | position after the ELF file header. */ | |
5542 | phdr_load_seg = NULL; | |
5543 | for (j = 0; j < alloc; j++) | |
5544 | { | |
5545 | m = sorted_seg_map[j]; | |
5546 | if (m->p_type != PT_LOAD) | |
5547 | break; | |
5548 | if (m->includes_phdrs) | |
5549 | { | |
5550 | phdr_load_seg = m; | |
5551 | break; | |
5552 | } | |
5553 | } | |
5554 | if (phdr_load_seg == NULL) | |
5555 | off += actual * bed->s->sizeof_phdr; | |
5556 | ||
5557 | for (j = 0; j < alloc; j++) | |
5558 | { | |
5559 | asection **secpp; | |
502794d4 | 5560 | bfd_vma off_adjust; /* Octets. */ |
0a1b45a2 | 5561 | bool no_contents; |
252b5132 | 5562 | |
b301b248 AM |
5563 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5564 | number of sections with contents contributing to both p_filesz | |
5565 | and p_memsz, followed by a number of sections with no contents | |
5566 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5567 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5568 | m = sorted_seg_map[j]; |
5569 | p = phdrs + m->idx; | |
252b5132 | 5570 | p->p_type = m->p_type; |
28a7f3e7 | 5571 | p->p_flags = m->p_flags; |
252b5132 | 5572 | |
3f570048 | 5573 | if (m->count == 0) |
502794d4 | 5574 | p->p_vaddr = m->p_vaddr_offset * opb; |
3f570048 | 5575 | else |
502794d4 | 5576 | p->p_vaddr = (m->sections[0]->vma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5577 | |
5578 | if (m->p_paddr_valid) | |
5579 | p->p_paddr = m->p_paddr; | |
5580 | else if (m->count == 0) | |
5581 | p->p_paddr = 0; | |
5582 | else | |
502794d4 | 5583 | p->p_paddr = (m->sections[0]->lma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5584 | |
5585 | if (p->p_type == PT_LOAD | |
5586 | && (abfd->flags & D_PAGED) != 0) | |
5587 | { | |
5588 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5589 | the maximum page size. When copying an executable with | |
5590 | objcopy, we set m->p_align from the input file. Use this | |
5591 | value for maxpagesize rather than bed->maxpagesize, which | |
5592 | may be different. Note that we use maxpagesize for PT_TLS | |
5593 | segment alignment later in this function, so we are relying | |
5594 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5595 | segment. */ | |
5596 | if (m->p_align_valid) | |
5597 | maxpagesize = m->p_align; | |
74e315db L |
5598 | else if (p_align != 0 |
5599 | && (link_info == NULL | |
5600 | || !link_info->maxpagesize_is_set)) | |
5601 | /* Set p_align to the default p_align value while laying | |
5602 | out segments aligning to the maximum page size or the | |
5603 | largest section alignment. The run-time loader can | |
5604 | align segments to the default p_align value or the | |
5605 | maximum page size, depending on system page size. */ | |
5606 | p_align_p = true; | |
3f570048 AM |
5607 | |
5608 | p->p_align = maxpagesize; | |
5609 | } | |
3271a814 NS |
5610 | else if (m->p_align_valid) |
5611 | p->p_align = m->p_align; | |
e970b90a DJ |
5612 | else if (m->count == 0) |
5613 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5614 | |
5615 | if (m == phdr_load_seg) | |
5616 | { | |
5617 | if (!m->includes_filehdr) | |
5618 | p->p_offset = off; | |
5619 | off += actual * bed->s->sizeof_phdr; | |
5620 | } | |
3f570048 | 5621 | |
0a1b45a2 | 5622 | no_contents = false; |
bf988460 | 5623 | off_adjust = 0; |
252b5132 | 5624 | if (p->p_type == PT_LOAD |
b301b248 | 5625 | && m->count > 0) |
252b5132 | 5626 | { |
66631823 | 5627 | bfd_size_type align; /* Bytes. */ |
a49e53ed | 5628 | unsigned int align_power = 0; |
b301b248 | 5629 | |
3271a814 NS |
5630 | if (m->p_align_valid) |
5631 | align = p->p_align; | |
5632 | else | |
252b5132 | 5633 | { |
3271a814 NS |
5634 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5635 | { | |
5636 | unsigned int secalign; | |
08a40648 | 5637 | |
fd361982 | 5638 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5639 | if (secalign > align_power) |
5640 | align_power = secalign; | |
5641 | } | |
5642 | align = (bfd_size_type) 1 << align_power; | |
5643 | if (align < maxpagesize) | |
74e315db L |
5644 | { |
5645 | /* If a section requires alignment higher than the | |
5646 | default p_align value, don't set p_align to the | |
5647 | default p_align value. */ | |
5648 | if (align > p_align) | |
5649 | p_align_p = false; | |
5650 | align = maxpagesize; | |
5651 | } | |
5652 | else | |
5653 | { | |
5654 | /* If a section requires alignment higher than the | |
5655 | maximum page size, set p_align to the section | |
5656 | alignment. */ | |
5657 | p_align_p = true; | |
5658 | p_align = align; | |
5659 | } | |
b301b248 | 5660 | } |
252b5132 | 5661 | |
02bf8d82 AM |
5662 | for (i = 0; i < m->count; i++) |
5663 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5664 | /* If we aren't making room for this section, then | |
5665 | it must be SHT_NOBITS regardless of what we've | |
5666 | set via struct bfd_elf_special_section. */ | |
5667 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5668 | ||
bf988460 | 5669 | /* Find out whether this segment contains any loadable |
aea274d3 | 5670 | sections. */ |
0a1b45a2 | 5671 | no_contents = true; |
aea274d3 AM |
5672 | for (i = 0; i < m->count; i++) |
5673 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5674 | { | |
0a1b45a2 | 5675 | no_contents = false; |
aea274d3 AM |
5676 | break; |
5677 | } | |
bf988460 | 5678 | |
66631823 | 5679 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align * opb); |
a8c75b76 AM |
5680 | |
5681 | /* Broken hardware and/or kernel require that files do not | |
5682 | map the same page with different permissions on some hppa | |
5683 | processors. */ | |
30fe1832 AM |
5684 | if (j != 0 |
5685 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5686 | && bed->no_page_alias |
5687 | && (off & (maxpagesize - 1)) != 0 | |
502794d4 CE |
5688 | && ((off & -maxpagesize) |
5689 | == ((off + off_adjust) & -maxpagesize))) | |
a8c75b76 | 5690 | off_adjust += maxpagesize; |
bf988460 AM |
5691 | off += off_adjust; |
5692 | if (no_contents) | |
5693 | { | |
5694 | /* We shouldn't need to align the segment on disk since | |
5695 | the segment doesn't need file space, but the gABI | |
5696 | arguably requires the alignment and glibc ld.so | |
5697 | checks it. So to comply with the alignment | |
5698 | requirement but not waste file space, we adjust | |
5699 | p_offset for just this segment. (OFF_ADJUST is | |
5700 | subtracted from OFF later.) This may put p_offset | |
5701 | past the end of file, but that shouldn't matter. */ | |
5702 | } | |
5703 | else | |
5704 | off_adjust = 0; | |
252b5132 | 5705 | } |
b1a6d0b1 NC |
5706 | /* Make sure the .dynamic section is the first section in the |
5707 | PT_DYNAMIC segment. */ | |
5708 | else if (p->p_type == PT_DYNAMIC | |
5709 | && m->count > 1 | |
5710 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5711 | { | |
5712 | _bfd_error_handler | |
871b3ab2 | 5713 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5714 | " is not the .dynamic section"), |
b301b248 | 5715 | abfd); |
b1a6d0b1 | 5716 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 5717 | return false; |
b1a6d0b1 | 5718 | } |
3f001e84 JK |
5719 | /* Set the note section type to SHT_NOTE. */ |
5720 | else if (p->p_type == PT_NOTE) | |
5721 | for (i = 0; i < m->count; i++) | |
5722 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5723 | |
252b5132 RH |
5724 | if (m->includes_filehdr) |
5725 | { | |
bf988460 | 5726 | if (!m->p_flags_valid) |
252b5132 | 5727 | p->p_flags |= PF_R; |
252b5132 RH |
5728 | p->p_filesz = bed->s->sizeof_ehdr; |
5729 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5730 | if (p->p_type == PT_LOAD) |
252b5132 | 5731 | { |
30fe1832 | 5732 | if (m->count > 0) |
252b5132 | 5733 | { |
30fe1832 AM |
5734 | if (p->p_vaddr < (bfd_vma) off |
5735 | || (!m->p_paddr_valid | |
5736 | && p->p_paddr < (bfd_vma) off)) | |
5737 | { | |
5738 | _bfd_error_handler | |
5739 | (_("%pB: not enough room for program headers," | |
5740 | " try linking with -N"), | |
5741 | abfd); | |
5742 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 5743 | return false; |
30fe1832 AM |
5744 | } |
5745 | p->p_vaddr -= off; | |
5746 | if (!m->p_paddr_valid) | |
5747 | p->p_paddr -= off; | |
252b5132 | 5748 | } |
30fe1832 AM |
5749 | } |
5750 | else if (sorted_seg_map[0]->includes_filehdr) | |
5751 | { | |
5752 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5753 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5754 | if (!m->p_paddr_valid) |
30fe1832 | 5755 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5756 | } |
252b5132 RH |
5757 | } |
5758 | ||
5759 | if (m->includes_phdrs) | |
5760 | { | |
bf988460 | 5761 | if (!m->p_flags_valid) |
252b5132 | 5762 | p->p_flags |= PF_R; |
30fe1832 AM |
5763 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5764 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5765 | if (!m->includes_filehdr) |
252b5132 | 5766 | { |
30fe1832 | 5767 | if (p->p_type == PT_LOAD) |
252b5132 | 5768 | { |
30fe1832 AM |
5769 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5770 | if (m->count > 0) | |
5771 | { | |
5772 | p->p_vaddr -= off - p->p_offset; | |
5773 | if (!m->p_paddr_valid) | |
5774 | p->p_paddr -= off - p->p_offset; | |
5775 | } | |
5776 | } | |
5777 | else if (phdr_load_seg != NULL) | |
5778 | { | |
5779 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
502794d4 | 5780 | bfd_vma phdr_off = 0; /* Octets. */ |
30fe1832 AM |
5781 | if (phdr_load_seg->includes_filehdr) |
5782 | phdr_off = bed->s->sizeof_ehdr; | |
5783 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5784 | if (!m->p_paddr_valid) |
30fe1832 AM |
5785 | p->p_paddr = phdr->p_paddr + phdr_off; |
5786 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5787 | } |
30fe1832 AM |
5788 | else |
5789 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5790 | } |
252b5132 RH |
5791 | } |
5792 | ||
5793 | if (p->p_type == PT_LOAD | |
5794 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5795 | { | |
bf988460 | 5796 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5797 | { |
5798 | p->p_offset = off; | |
5799 | if (no_contents) | |
67641dd3 AM |
5800 | { |
5801 | /* Put meaningless p_offset for PT_LOAD segments | |
5802 | without file contents somewhere within the first | |
5803 | page, in an attempt to not point past EOF. */ | |
5804 | bfd_size_type align = maxpagesize; | |
5805 | if (align < p->p_align) | |
5806 | align = p->p_align; | |
5807 | if (align < 1) | |
5808 | align = 1; | |
5809 | p->p_offset = off % align; | |
5810 | } | |
0bc3450e | 5811 | } |
252b5132 RH |
5812 | else |
5813 | { | |
502794d4 | 5814 | file_ptr adjust; /* Octets. */ |
252b5132 RH |
5815 | |
5816 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5817 | if (!no_contents) |
5818 | p->p_filesz += adjust; | |
252b5132 RH |
5819 | p->p_memsz += adjust; |
5820 | } | |
5821 | } | |
5822 | ||
1ea63fd2 AM |
5823 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5824 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5825 | core files, for sections in PT_NOTE segments. | |
5826 | assign_file_positions_for_non_load_sections will set filepos | |
5827 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5828 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5829 | { | |
5830 | asection *sec; | |
252b5132 | 5831 | bfd_size_type align; |
627b32bc | 5832 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5833 | |
5834 | sec = *secpp; | |
02bf8d82 | 5835 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5836 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5837 | |
88967714 AM |
5838 | if ((p->p_type == PT_LOAD |
5839 | || p->p_type == PT_TLS) | |
5840 | && (this_hdr->sh_type != SHT_NOBITS | |
5841 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5842 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5843 | || p->p_type == PT_TLS)))) | |
252b5132 | 5844 | { |
502794d4 CE |
5845 | bfd_vma p_start = p->p_paddr; /* Octets. */ |
5846 | bfd_vma p_end = p_start + p->p_memsz; /* Octets. */ | |
5847 | bfd_vma s_start = sec->lma * opb; /* Octets. */ | |
5848 | bfd_vma adjust = s_start - p_end; /* Octets. */ | |
252b5132 | 5849 | |
a2d1e028 L |
5850 | if (adjust != 0 |
5851 | && (s_start < p_end | |
5852 | || p_end < p_start)) | |
252b5132 | 5853 | { |
4eca0228 | 5854 | _bfd_error_handler |
695344c0 | 5855 | /* xgettext:c-format */ |
2dcf00ce | 5856 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
502794d4 CE |
5857 | abfd, sec, (uint64_t) s_start / opb, |
5858 | (uint64_t) p_end / opb); | |
88967714 | 5859 | adjust = 0; |
502794d4 | 5860 | sec->lma = p_end / opb; |
1cfb7d1e | 5861 | } |
3ac9b6c9 | 5862 | p->p_memsz += adjust; |
1cfb7d1e | 5863 | |
d16e3d2e | 5864 | if (p->p_type == PT_LOAD) |
88967714 | 5865 | { |
d16e3d2e | 5866 | if (this_hdr->sh_type != SHT_NOBITS) |
32812159 | 5867 | { |
d16e3d2e | 5868 | off_adjust = 0; |
30fe1832 AM |
5869 | if (p->p_filesz + adjust < p->p_memsz) |
5870 | { | |
5871 | /* We have a PROGBITS section following NOBITS ones. | |
5872 | Allocate file space for the NOBITS section(s) and | |
5873 | zero it. */ | |
5874 | adjust = p->p_memsz - p->p_filesz; | |
5875 | if (!write_zeros (abfd, off, adjust)) | |
0a1b45a2 | 5876 | return false; |
30fe1832 | 5877 | } |
d16e3d2e AM |
5878 | } |
5879 | /* We only adjust sh_offset in SHT_NOBITS sections | |
5880 | as would seem proper for their address when the | |
5881 | section is first in the segment. sh_offset | |
5882 | doesn't really have any significance for | |
5883 | SHT_NOBITS anyway, apart from a notional position | |
5884 | relative to other sections. Historically we | |
5885 | didn't bother with adjusting sh_offset and some | |
5886 | programs depend on it not being adjusted. See | |
5887 | pr12921 and pr25662. */ | |
5888 | if (this_hdr->sh_type != SHT_NOBITS || i == 0) | |
5889 | { | |
30fe1832 | 5890 | off += adjust; |
d16e3d2e AM |
5891 | if (this_hdr->sh_type == SHT_NOBITS) |
5892 | off_adjust += adjust; | |
32812159 | 5893 | } |
252b5132 | 5894 | } |
d16e3d2e AM |
5895 | if (this_hdr->sh_type != SHT_NOBITS) |
5896 | p->p_filesz += adjust; | |
252b5132 RH |
5897 | } |
5898 | ||
5899 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5900 | { | |
b301b248 AM |
5901 | /* The section at i == 0 is the one that actually contains |
5902 | everything. */ | |
4a938328 MS |
5903 | if (i == 0) |
5904 | { | |
627b32bc | 5905 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5906 | off += this_hdr->sh_size; |
5907 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5908 | p->p_memsz = 0; |
5909 | p->p_align = 1; | |
252b5132 | 5910 | } |
4a938328 | 5911 | else |
252b5132 | 5912 | { |
b301b248 | 5913 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5914 | sec->filepos = 0; |
eea6121a | 5915 | sec->size = 0; |
b301b248 AM |
5916 | sec->flags = 0; |
5917 | continue; | |
252b5132 | 5918 | } |
252b5132 RH |
5919 | } |
5920 | else | |
5921 | { | |
1e951488 | 5922 | if (p->p_type == PT_LOAD) |
b301b248 | 5923 | { |
1e951488 AM |
5924 | this_hdr->sh_offset = sec->filepos = off; |
5925 | if (this_hdr->sh_type != SHT_NOBITS) | |
5926 | off += this_hdr->sh_size; | |
5927 | } | |
5928 | else if (this_hdr->sh_type == SHT_NOBITS | |
5929 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5930 | && this_hdr->sh_offset == 0) | |
5931 | { | |
5932 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5933 | (See _bfd_elf_map_sections_to_segments "Create a | |
5934 | final PT_LOAD".) Set sh_offset to the value it | |
5935 | would have if we had created a zero p_filesz and | |
5936 | p_memsz PT_LOAD header for the section. This | |
5937 | also makes the PT_TLS header have the same | |
5938 | p_offset value. */ | |
5939 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5940 | off, align); | |
5941 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5942 | } |
252b5132 | 5943 | |
02bf8d82 | 5944 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5945 | { |
6a3cd2b4 | 5946 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5947 | /* A load section without SHF_ALLOC is something like |
5948 | a note section in a PT_NOTE segment. These take | |
5949 | file space but are not loaded into memory. */ | |
5950 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5951 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5952 | } |
6a3cd2b4 | 5953 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5954 | { |
6a3cd2b4 AM |
5955 | if (p->p_type == PT_TLS) |
5956 | p->p_memsz += this_hdr->sh_size; | |
5957 | ||
5958 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5959 | normal segments. */ | |
5960 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5961 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5962 | } |
5963 | ||
b10a8ae0 L |
5964 | if (align > p->p_align |
5965 | && !m->p_align_valid | |
5966 | && (p->p_type != PT_LOAD | |
5967 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5968 | p->p_align = align; |
5969 | } | |
5970 | ||
bf988460 | 5971 | if (!m->p_flags_valid) |
252b5132 RH |
5972 | { |
5973 | p->p_flags |= PF_R; | |
02bf8d82 | 5974 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5975 | p->p_flags |= PF_X; |
02bf8d82 | 5976 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5977 | p->p_flags |= PF_W; |
5978 | } | |
5979 | } | |
43a8475c | 5980 | |
bf988460 | 5981 | off -= off_adjust; |
0920dee7 | 5982 | |
30fe1832 AM |
5983 | /* PR ld/20815 - Check that the program header segment, if |
5984 | present, will be loaded into memory. */ | |
5985 | if (p->p_type == PT_PHDR | |
5986 | && phdr_load_seg == NULL | |
5987 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5988 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5989 | { | |
5990 | /* The fix for this error is usually to edit the linker script being | |
5991 | used and set up the program headers manually. Either that or | |
5992 | leave room for the headers at the start of the SECTIONS. */ | |
5993 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5994 | " by LOAD segment"), | |
5995 | abfd); | |
7b3c2715 | 5996 | if (link_info == NULL) |
0a1b45a2 | 5997 | return false; |
7b3c2715 AM |
5998 | /* Arrange for the linker to exit with an error, deleting |
5999 | the output file unless --noinhibit-exec is given. */ | |
6000 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
6001 | } |
6002 | ||
7c928300 AM |
6003 | /* Check that all sections are in a PT_LOAD segment. |
6004 | Don't check funky gdb generated core files. */ | |
6005 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 | 6006 | { |
0a1b45a2 | 6007 | bool check_vma = true; |
9a83a553 AM |
6008 | |
6009 | for (i = 1; i < m->count; i++) | |
6010 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
6011 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
6012 | ->this_hdr), p) != 0 | |
6013 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
6014 | ->this_hdr), p) != 0) | |
0920dee7 | 6015 | { |
9a83a553 | 6016 | /* Looks like we have overlays packed into the segment. */ |
0a1b45a2 | 6017 | check_vma = false; |
9a83a553 | 6018 | break; |
0920dee7 | 6019 | } |
9a83a553 AM |
6020 | |
6021 | for (i = 0; i < m->count; i++) | |
6022 | { | |
6023 | Elf_Internal_Shdr *this_hdr; | |
6024 | asection *sec; | |
6025 | ||
6026 | sec = m->sections[i]; | |
6027 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
6028 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
6029 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 6030 | { |
4eca0228 | 6031 | _bfd_error_handler |
695344c0 | 6032 | /* xgettext:c-format */ |
871b3ab2 | 6033 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
6034 | abfd, sec, j); |
6035 | print_segment_map (m); | |
6036 | } | |
6037 | } | |
74e315db L |
6038 | |
6039 | if (p_align_p) | |
6040 | p->p_align = p_align; | |
9a83a553 | 6041 | } |
252b5132 RH |
6042 | } |
6043 | ||
12bd6957 | 6044 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
6045 | |
6046 | if (link_info != NULL | |
6047 | && phdr_load_seg != NULL | |
6048 | && phdr_load_seg->includes_filehdr) | |
6049 | { | |
6050 | /* There is a segment that contains both the file headers and the | |
6051 | program headers, so provide a symbol __ehdr_start pointing there. | |
6052 | A program can use this to examine itself robustly. */ | |
6053 | ||
6054 | struct elf_link_hash_entry *hash | |
6055 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
0a1b45a2 | 6056 | false, false, true); |
30fe1832 AM |
6057 | /* If the symbol was referenced and not defined, define it. */ |
6058 | if (hash != NULL | |
6059 | && (hash->root.type == bfd_link_hash_new | |
6060 | || hash->root.type == bfd_link_hash_undefined | |
6061 | || hash->root.type == bfd_link_hash_undefweak | |
6062 | || hash->root.type == bfd_link_hash_common)) | |
6063 | { | |
6064 | asection *s = NULL; | |
66631823 | 6065 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr / opb; |
30fe1832 AM |
6066 | |
6067 | if (phdr_load_seg->count != 0) | |
6068 | /* The segment contains sections, so use the first one. */ | |
6069 | s = phdr_load_seg->sections[0]; | |
6070 | else | |
6071 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6072 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6073 | if (m->p_type == PT_LOAD && m->count != 0) | |
6074 | { | |
6075 | s = m->sections[0]; | |
6076 | break; | |
6077 | } | |
6078 | ||
6079 | if (s != NULL) | |
6080 | { | |
6081 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6082 | hash->root.u.def.section = s; | |
6083 | } | |
6084 | else | |
6085 | { | |
6086 | hash->root.u.def.value = filehdr_vaddr; | |
6087 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6088 | } | |
6089 | ||
6090 | hash->root.type = bfd_link_hash_defined; | |
6091 | hash->def_regular = 1; | |
6092 | hash->non_elf = 0; | |
6093 | } | |
6094 | } | |
6095 | ||
0a1b45a2 | 6096 | return true; |
f3520d2f AM |
6097 | } |
6098 | ||
1faa385f NC |
6099 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6100 | is no defined method for detecting such files, so we have to | |
6101 | use heuristics instead. */ | |
6102 | ||
0a1b45a2 | 6103 | bool |
1faa385f NC |
6104 | is_debuginfo_file (bfd *abfd) |
6105 | { | |
6106 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 6107 | return false; |
1faa385f NC |
6108 | |
6109 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6110 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6111 | Elf_Internal_Shdr **headerp; | |
6112 | ||
6113 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6114 | { | |
6115 | Elf_Internal_Shdr *header = * headerp; | |
6116 | ||
6117 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6118 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6119 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6120 | && header->sh_type != SHT_NOBITS | |
6121 | && header->sh_type != SHT_NOTE) | |
0a1b45a2 | 6122 | return false; |
1faa385f NC |
6123 | } |
6124 | ||
0a1b45a2 | 6125 | return true; |
1faa385f NC |
6126 | } |
6127 | ||
1ff6de03 NA |
6128 | /* Assign file positions for the other sections, except for compressed debugging |
6129 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f | 6130 | |
0a1b45a2 | 6131 | static bool |
f3520d2f AM |
6132 | assign_file_positions_for_non_load_sections (bfd *abfd, |
6133 | struct bfd_link_info *link_info) | |
6134 | { | |
6135 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6136 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6137 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6138 | Elf_Internal_Phdr *phdrs; |
6139 | Elf_Internal_Phdr *p; | |
6140 | struct elf_segment_map *m; | |
f3520d2f | 6141 | file_ptr off; |
66631823 | 6142 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
c410035d | 6143 | bfd_vma maxpagesize; |
f3520d2f | 6144 | |
c410035d AM |
6145 | if (link_info != NULL) |
6146 | maxpagesize = link_info->maxpagesize; | |
6147 | else | |
6148 | maxpagesize = bed->maxpagesize; | |
5c182d5f | 6149 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6150 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6151 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6152 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6153 | { |
5c182d5f | 6154 | Elf_Internal_Shdr *hdr; |
1f9b1a84 | 6155 | bfd_vma align; |
5c182d5f AM |
6156 | |
6157 | hdr = *hdrpp; | |
6158 | if (hdr->bfd_section != NULL | |
252e386e AM |
6159 | && (hdr->bfd_section->filepos != 0 |
6160 | || (hdr->sh_type == SHT_NOBITS | |
6161 | && hdr->contents == NULL))) | |
627b32bc | 6162 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6163 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6164 | { | |
1faa385f NC |
6165 | if (hdr->sh_size != 0 |
6166 | /* PR 24717 - debuginfo files are known to be not strictly | |
6167 | compliant with the ELF standard. In particular they often | |
6168 | have .note.gnu.property sections that are outside of any | |
6169 | loadable segment. This is not a problem for such files, | |
6170 | so do not warn about them. */ | |
6171 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6172 | _bfd_error_handler |
695344c0 | 6173 | /* xgettext:c-format */ |
871b3ab2 | 6174 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6175 | abfd, |
6176 | (hdr->bfd_section == NULL | |
6177 | ? "*unknown*" | |
6178 | : hdr->bfd_section->name)); | |
3ba71138 L |
6179 | /* We don't need to page align empty sections. */ |
6180 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
1f9b1a84 | 6181 | align = maxpagesize; |
5c182d5f | 6182 | else |
1f9b1a84 AM |
6183 | align = hdr->sh_addralign & -hdr->sh_addralign; |
6184 | off += vma_page_aligned_bias (hdr->sh_addr, off, align); | |
5c182d5f | 6185 | off = _bfd_elf_assign_file_position_for_section (hdr, off, |
0a1b45a2 | 6186 | false); |
5c182d5f AM |
6187 | } |
6188 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6189 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6190 | /* We don't know the offset of these sections yet: their size has |
6191 | not been decided. */ | |
0ce398f1 | 6192 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6193 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6194 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6195 | && abfd->is_linker_output))) | |
12bd6957 | 6196 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6197 | || (elf_symtab_shndx_list (abfd) != NULL |
6198 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6199 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6200 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6201 | hdr->sh_offset = -1; |
6202 | else | |
0a1b45a2 | 6203 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
5c182d5f | 6204 | } |
30fe1832 | 6205 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6206 | |
252b5132 RH |
6207 | /* Now that we have set the section file positions, we can set up |
6208 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6209 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6210 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6211 | { |
129af99f | 6212 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6213 | { |
66631823 | 6214 | bfd_vma start, end; /* Bytes. */ |
0a1b45a2 | 6215 | bool ok; |
1ea63fd2 | 6216 | |
129af99f | 6217 | if (link_info != NULL) |
8c37241b | 6218 | { |
129af99f | 6219 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6220 | in link_info. Note that there may be padding between |
6221 | relro_start and the first RELRO section. */ | |
6222 | start = link_info->relro_start; | |
6223 | end = link_info->relro_end; | |
6224 | } | |
6225 | else if (m->count != 0) | |
6226 | { | |
6227 | if (!m->p_size_valid) | |
6228 | abort (); | |
6229 | start = m->sections[0]->vma; | |
66631823 | 6230 | end = start + m->p_size / opb; |
f2731e0c AM |
6231 | } |
6232 | else | |
6233 | { | |
6234 | start = 0; | |
6235 | end = 0; | |
6236 | } | |
6237 | ||
0a1b45a2 | 6238 | ok = false; |
f2731e0c AM |
6239 | if (start < end) |
6240 | { | |
6241 | struct elf_segment_map *lm; | |
6242 | const Elf_Internal_Phdr *lp; | |
6243 | unsigned int i; | |
6244 | ||
6245 | /* Find a LOAD segment containing a section in the RELRO | |
6246 | segment. */ | |
12bd6957 | 6247 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6248 | lm != NULL; |
6249 | lm = lm->next, lp++) | |
8c37241b JJ |
6250 | { |
6251 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6252 | && lm->count != 0 |
dbc88fc1 AM |
6253 | && (lm->sections[lm->count - 1]->vma |
6254 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
66631823 | 6255 | ? lm->sections[lm->count - 1]->size / opb |
dbc88fc1 | 6256 | : 0)) > start |
f2731e0c | 6257 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6258 | break; |
6259 | } | |
f2731e0c | 6260 | |
01f7e10c | 6261 | if (lm != NULL) |
129af99f | 6262 | { |
01f7e10c AM |
6263 | /* Find the section starting the RELRO segment. */ |
6264 | for (i = 0; i < lm->count; i++) | |
6265 | { | |
6266 | asection *s = lm->sections[i]; | |
6267 | if (s->vma >= start | |
6268 | && s->vma < end | |
6269 | && s->size != 0) | |
6270 | break; | |
6271 | } | |
6272 | ||
6273 | if (i < lm->count) | |
6274 | { | |
502794d4 CE |
6275 | p->p_vaddr = lm->sections[i]->vma * opb; |
6276 | p->p_paddr = lm->sections[i]->lma * opb; | |
01f7e10c | 6277 | p->p_offset = lm->sections[i]->filepos; |
66631823 | 6278 | p->p_memsz = end * opb - p->p_vaddr; |
01f7e10c AM |
6279 | p->p_filesz = p->p_memsz; |
6280 | ||
6281 | /* The RELRO segment typically ends a few bytes | |
6282 | into .got.plt but other layouts are possible. | |
6283 | In cases where the end does not match any | |
6284 | loaded section (for instance is in file | |
6285 | padding), trim p_filesz back to correspond to | |
6286 | the end of loaded section contents. */ | |
6287 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6288 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6289 | ||
6290 | /* Preserve the alignment and flags if they are | |
6291 | valid. The gold linker generates RW/4 for | |
6292 | the PT_GNU_RELRO section. It is better for | |
6293 | objcopy/strip to honor these attributes | |
6294 | otherwise gdb will choke when using separate | |
6295 | debug files. */ | |
6296 | if (!m->p_align_valid) | |
6297 | p->p_align = 1; | |
6298 | if (!m->p_flags_valid) | |
6299 | p->p_flags = PF_R; | |
0a1b45a2 | 6300 | ok = true; |
01f7e10c | 6301 | } |
129af99f | 6302 | } |
b84a33b5 | 6303 | } |
ee9e412f | 6304 | |
01f7e10c | 6305 | if (!ok) |
ee9e412f NC |
6306 | { |
6307 | if (link_info != NULL) | |
6308 | _bfd_error_handler | |
6309 | (_("%pB: warning: unable to allocate any sections to PT_GNU_RELRO segment"), | |
6310 | abfd); | |
6311 | memset (p, 0, sizeof *p); | |
6312 | } | |
129af99f | 6313 | } |
04c3a755 NS |
6314 | else if (p->p_type == PT_GNU_STACK) |
6315 | { | |
6316 | if (m->p_size_valid) | |
6317 | p->p_memsz = m->p_size; | |
6318 | } | |
129af99f AS |
6319 | else if (m->count != 0) |
6320 | { | |
e06efbf1 | 6321 | unsigned int i; |
1a9ccd70 | 6322 | |
129af99f AS |
6323 | if (p->p_type != PT_LOAD |
6324 | && (p->p_type != PT_NOTE | |
6325 | || bfd_get_format (abfd) != bfd_core)) | |
6326 | { | |
1a9ccd70 NC |
6327 | /* A user specified segment layout may include a PHDR |
6328 | segment that overlaps with a LOAD segment... */ | |
6329 | if (p->p_type == PT_PHDR) | |
6330 | { | |
6331 | m->count = 0; | |
6332 | continue; | |
6333 | } | |
6334 | ||
c86934ce NC |
6335 | if (m->includes_filehdr || m->includes_phdrs) |
6336 | { | |
b1fa9dd6 | 6337 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6338 | _bfd_error_handler |
871b3ab2 | 6339 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6340 | "and/or program header"), |
6341 | abfd, (int) (p - phdrs)); | |
0a1b45a2 | 6342 | return false; |
c86934ce | 6343 | } |
129af99f | 6344 | |
86b2281f | 6345 | p->p_filesz = 0; |
129af99f | 6346 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6347 | for (i = m->count; i-- != 0;) |
6348 | { | |
6349 | asection *sect = m->sections[i]; | |
6350 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6351 | if (hdr->sh_type != SHT_NOBITS) | |
6352 | { | |
aebb3d54 | 6353 | p->p_filesz = sect->filepos - p->p_offset + hdr->sh_size; |
9917b559 L |
6354 | /* NB: p_memsz of the loadable PT_NOTE segment |
6355 | should be the same as p_filesz. */ | |
6356 | if (p->p_type == PT_NOTE | |
6357 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
6358 | p->p_memsz = p->p_filesz; | |
86b2281f AM |
6359 | break; |
6360 | } | |
6361 | } | |
129af99f AS |
6362 | } |
6363 | } | |
252b5132 RH |
6364 | } |
6365 | ||
0a1b45a2 | 6366 | return true; |
252b5132 RH |
6367 | } |
6368 | ||
6a40cf0c NC |
6369 | static elf_section_list * |
6370 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6371 | { | |
6372 | for (;list != NULL; list = list->next) | |
6373 | if (list->ndx == i) | |
6374 | break; | |
6375 | return list; | |
6376 | } | |
6377 | ||
252b5132 RH |
6378 | /* Work out the file positions of all the sections. This is called by |
6379 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6380 | VMAs must be known before this is called. | |
6381 | ||
e0638f70 | 6382 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6383 | "side-channel" data attached to a section to which they apply, and those that |
6384 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6385 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6386 | here, unless they form part of the loadable image. Reloc sections not | |
6387 | assigned here (and compressed debugging sections and CTF sections which | |
6388 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6389 | assign_file_positions_for_relocs. |
252b5132 RH |
6390 | |
6391 | We also don't set the positions of the .symtab and .strtab here. */ | |
6392 | ||
0a1b45a2 | 6393 | static bool |
c84fca4d AO |
6394 | assign_file_positions_except_relocs (bfd *abfd, |
6395 | struct bfd_link_info *link_info) | |
252b5132 | 6396 | { |
5c182d5f AM |
6397 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6398 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6399 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6400 | unsigned int alloc; |
252b5132 RH |
6401 | |
6402 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6403 | && bfd_get_format (abfd) != bfd_core) | |
6404 | { | |
5c182d5f AM |
6405 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6406 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6407 | Elf_Internal_Shdr **hdrpp; |
6408 | unsigned int i; | |
a485e98e | 6409 | file_ptr off; |
252b5132 RH |
6410 | |
6411 | /* Start after the ELF header. */ | |
6412 | off = i_ehdrp->e_ehsize; | |
6413 | ||
6414 | /* We are not creating an executable, which means that we are | |
6415 | not creating a program header, and that the actual order of | |
6416 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6417 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6418 | { |
6419 | Elf_Internal_Shdr *hdr; | |
6420 | ||
6421 | hdr = *hdrpp; | |
e0638f70 AM |
6422 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6423 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6424 | /* Do not assign offsets for these sections yet: we don't know |
6425 | their sizes. */ | |
0ce398f1 | 6426 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6427 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6428 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6429 | && abfd->is_linker_output))) | |
12bd6957 | 6430 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6431 | || (elf_symtab_shndx_list (abfd) != NULL |
6432 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6433 | || i == elf_strtab_sec (abfd) |
6434 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6435 | { |
6436 | hdr->sh_offset = -1; | |
252b5132 | 6437 | } |
9ad5cbcf | 6438 | else |
0a1b45a2 | 6439 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 6440 | } |
a485e98e AM |
6441 | |
6442 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6443 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6444 | } |
6445 | else | |
6446 | { | |
252b5132 | 6447 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6448 | assignment of sections to segments. */ |
f3520d2f | 6449 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
0a1b45a2 | 6450 | return false; |
f3520d2f AM |
6451 | |
6452 | /* And for non-load sections. */ | |
6453 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
0a1b45a2 | 6454 | return false; |
6d6c25c8 | 6455 | } |
f3520d2f | 6456 | |
6d6c25c8 | 6457 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
0a1b45a2 | 6458 | return false; |
1a9ccd70 | 6459 | |
6d6c25c8 AM |
6460 | /* Write out the program headers. */ |
6461 | alloc = i_ehdrp->e_phnum; | |
6462 | if (alloc != 0) | |
6463 | { | |
30fe1832 | 6464 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 | 6465 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
0a1b45a2 | 6466 | return false; |
252b5132 RH |
6467 | } |
6468 | ||
0a1b45a2 | 6469 | return true; |
252b5132 RH |
6470 | } |
6471 | ||
0a1b45a2 | 6472 | bool |
ed7e9d0b AM |
6473 | _bfd_elf_init_file_header (bfd *abfd, |
6474 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6475 | { |
3d540e93 | 6476 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6477 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6478 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6479 | |
6480 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6481 | |
2b0f7ef9 | 6482 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6483 | if (shstrtab == NULL) |
0a1b45a2 | 6484 | return false; |
252b5132 RH |
6485 | |
6486 | elf_shstrtab (abfd) = shstrtab; | |
6487 | ||
6488 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6489 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6490 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6491 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6492 | ||
6493 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6494 | i_ehdrp->e_ident[EI_DATA] = | |
6495 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6496 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6497 | ||
252b5132 RH |
6498 | if ((abfd->flags & DYNAMIC) != 0) |
6499 | i_ehdrp->e_type = ET_DYN; | |
6500 | else if ((abfd->flags & EXEC_P) != 0) | |
6501 | i_ehdrp->e_type = ET_EXEC; | |
6502 | else if (bfd_get_format (abfd) == bfd_core) | |
6503 | i_ehdrp->e_type = ET_CORE; | |
6504 | else | |
6505 | i_ehdrp->e_type = ET_REL; | |
6506 | ||
6507 | switch (bfd_get_arch (abfd)) | |
6508 | { | |
6509 | case bfd_arch_unknown: | |
6510 | i_ehdrp->e_machine = EM_NONE; | |
6511 | break; | |
aa4f99bb AO |
6512 | |
6513 | /* There used to be a long list of cases here, each one setting | |
6514 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6515 | in the corresponding bfd definition. To avoid duplication, | |
6516 | the switch was removed. Machines that need special handling | |
6517 | can generally do it in elf_backend_final_write_processing(), | |
6518 | unless they need the information earlier than the final write. | |
6519 | Such need can generally be supplied by replacing the tests for | |
6520 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6521 | default: |
9c5bfbb7 AM |
6522 | i_ehdrp->e_machine = bed->elf_machine_code; |
6523 | } | |
aa4f99bb | 6524 | |
252b5132 RH |
6525 | i_ehdrp->e_version = bed->s->ev_current; |
6526 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6527 | ||
c044fabd | 6528 | /* No program header, for now. */ |
252b5132 RH |
6529 | i_ehdrp->e_phoff = 0; |
6530 | i_ehdrp->e_phentsize = 0; | |
6531 | i_ehdrp->e_phnum = 0; | |
6532 | ||
c044fabd | 6533 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6534 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6535 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6536 | ||
252b5132 | 6537 | elf_tdata (abfd)->symtab_hdr.sh_name = |
0a1b45a2 | 6538 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", false); |
252b5132 | 6539 | elf_tdata (abfd)->strtab_hdr.sh_name = |
0a1b45a2 | 6540 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", false); |
252b5132 | 6541 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
0a1b45a2 | 6542 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", false); |
252b5132 | 6543 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6544 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6545 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 6546 | return false; |
252b5132 | 6547 | |
0a1b45a2 | 6548 | return true; |
252b5132 RH |
6549 | } |
6550 | ||
6d6c25c8 AM |
6551 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6552 | ||
6553 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6554 | ascending order, as per the ELF spec. But this breaks some programs, | |
6555 | including the Linux kernel. But really either the spec should be | |
6556 | changed or the programs updated. */ | |
6557 | ||
0a1b45a2 | 6558 | bool |
6d6c25c8 AM |
6559 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) |
6560 | { | |
6561 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6562 | { | |
6563 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6564 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6565 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6566 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6567 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6568 | ||
6569 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6570 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6571 | for (; segment < end_segment; segment++) | |
6572 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6573 | p_vaddr = segment->p_vaddr; | |
6574 | ||
6575 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6576 | segments is non-zero. */ | |
6577 | if (p_vaddr) | |
6578 | i_ehdrp->e_type = ET_EXEC; | |
6579 | } | |
0a1b45a2 | 6580 | return true; |
6d6c25c8 AM |
6581 | } |
6582 | ||
252b5132 | 6583 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6584 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6585 | |
0a1b45a2 | 6586 | static bool |
0ce398f1 | 6587 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) |
252b5132 RH |
6588 | { |
6589 | file_ptr off; | |
e06efbf1 | 6590 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6591 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6592 | Elf_Internal_Ehdr *i_ehdrp; |
6593 | const struct elf_backend_data *bed; | |
252b5132 | 6594 | |
12bd6957 | 6595 | off = elf_next_file_pos (abfd); |
252b5132 | 6596 | |
e06efbf1 L |
6597 | shdrpp = elf_elfsections (abfd); |
6598 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6599 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6600 | { |
252b5132 | 6601 | shdrp = *shdrpp; |
0ce398f1 L |
6602 | if (shdrp->sh_offset == -1) |
6603 | { | |
3e19fb8f | 6604 | asection *sec = shdrp->bfd_section; |
0a1b45a2 AM |
6605 | bool is_rel = (shdrp->sh_type == SHT_REL |
6606 | || shdrp->sh_type == SHT_RELA); | |
6607 | bool is_ctf = sec && bfd_section_is_ctf (sec); | |
0ce398f1 | 6608 | if (is_rel |
1ff6de03 | 6609 | || is_ctf |
3e19fb8f | 6610 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6611 | { |
1ff6de03 | 6612 | if (!is_rel && !is_ctf) |
0ce398f1 | 6613 | { |
3e19fb8f L |
6614 | const char *name = sec->name; |
6615 | struct bfd_elf_section_data *d; | |
6616 | ||
0ce398f1 | 6617 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6618 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 | 6619 | shdrp->contents)) |
0a1b45a2 | 6620 | return false; |
3e19fb8f L |
6621 | |
6622 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6623 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6624 | { | |
6625 | /* If section is compressed with zlib-gnu, convert | |
6626 | section name from .debug_* to .zdebug_*. */ | |
6627 | char *new_name | |
6628 | = convert_debug_to_zdebug (abfd, name); | |
6629 | if (new_name == NULL) | |
0a1b45a2 | 6630 | return false; |
3e19fb8f L |
6631 | name = new_name; |
6632 | } | |
dd905818 | 6633 | /* Add section name to section name section. */ |
3e19fb8f L |
6634 | if (shdrp->sh_name != (unsigned int) -1) |
6635 | abort (); | |
6636 | shdrp->sh_name | |
6637 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 6638 | name, false); |
3e19fb8f L |
6639 | d = elf_section_data (sec); |
6640 | ||
dd905818 | 6641 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6642 | if (d->rel.hdr |
6643 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6644 | d->rel.hdr, | |
0a1b45a2 AM |
6645 | name, false)) |
6646 | return false; | |
3e19fb8f L |
6647 | if (d->rela.hdr |
6648 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6649 | d->rela.hdr, | |
0a1b45a2 AM |
6650 | name, true)) |
6651 | return false; | |
3e19fb8f | 6652 | |
0ce398f1 | 6653 | /* Update section size and contents. */ |
3e19fb8f L |
6654 | shdrp->sh_size = sec->size; |
6655 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6656 | shdrp->bfd_section->contents = NULL; |
6657 | } | |
1ff6de03 NA |
6658 | else if (is_ctf) |
6659 | { | |
6660 | /* Update section size and contents. */ | |
6661 | shdrp->sh_size = sec->size; | |
6662 | shdrp->contents = sec->contents; | |
6663 | } | |
6664 | ||
0ce398f1 L |
6665 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6666 | off, | |
0a1b45a2 | 6667 | true); |
0ce398f1 L |
6668 | } |
6669 | } | |
252b5132 RH |
6670 | } |
6671 | ||
3e19fb8f L |
6672 | /* Place section name section after DWARF debug sections have been |
6673 | compressed. */ | |
6674 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6675 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6676 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
0a1b45a2 | 6677 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, true); |
3e19fb8f L |
6678 | |
6679 | /* Place the section headers. */ | |
a485e98e AM |
6680 | i_ehdrp = elf_elfheader (abfd); |
6681 | bed = get_elf_backend_data (abfd); | |
6682 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6683 | i_ehdrp->e_shoff = off; | |
6684 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6685 | elf_next_file_pos (abfd) = off; |
0ce398f1 | 6686 | |
0a1b45a2 | 6687 | return true; |
252b5132 RH |
6688 | } |
6689 | ||
0a1b45a2 | 6690 | bool |
217aa764 | 6691 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6692 | { |
9c5bfbb7 | 6693 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6694 | Elf_Internal_Shdr **i_shdrp; |
0a1b45a2 | 6695 | bool failed; |
9ad5cbcf | 6696 | unsigned int count, num_sec; |
30e8ee25 | 6697 | struct elf_obj_tdata *t; |
252b5132 RH |
6698 | |
6699 | if (! abfd->output_has_begun | |
217aa764 | 6700 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 6701 | return false; |
db727370 JL |
6702 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6703 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6704 | sections, and modification of existing section sizes was restricted. | |
6705 | This means the ELF header, program headers and section headers can't have | |
6706 | changed. | |
6707 | If the contents of any sections has been modified, then those changes have | |
6708 | already been written to the BFD. */ | |
6709 | else if (abfd->direction == both_direction) | |
6710 | { | |
6711 | BFD_ASSERT (abfd->output_has_begun); | |
0a1b45a2 | 6712 | return true; |
db727370 | 6713 | } |
252b5132 RH |
6714 | |
6715 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6716 | |
0a1b45a2 | 6717 | failed = false; |
252b5132 RH |
6718 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6719 | if (failed) | |
0a1b45a2 | 6720 | return false; |
252b5132 | 6721 | |
0ce398f1 | 6722 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
0a1b45a2 | 6723 | return false; |
252b5132 | 6724 | |
c044fabd | 6725 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6726 | num_sec = elf_numsections (abfd); |
6727 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6728 | { |
3e19fb8f L |
6729 | i_shdrp[count]->sh_name |
6730 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6731 | i_shdrp[count]->sh_name); | |
252b5132 | 6732 | if (bed->elf_backend_section_processing) |
75506100 | 6733 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
0a1b45a2 | 6734 | return false; |
252b5132 RH |
6735 | if (i_shdrp[count]->contents) |
6736 | { | |
dc810e39 AM |
6737 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6738 | ||
252b5132 | 6739 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6740 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
0a1b45a2 | 6741 | return false; |
252b5132 RH |
6742 | } |
6743 | } | |
6744 | ||
6745 | /* Write out the section header names. */ | |
30e8ee25 | 6746 | t = elf_tdata (abfd); |
26ae6d5e | 6747 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6748 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6749 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
0a1b45a2 | 6750 | return false; |
252b5132 | 6751 | |
cc364be6 | 6752 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
0a1b45a2 | 6753 | return false; |
252b5132 | 6754 | |
ff59fc36 | 6755 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
0a1b45a2 | 6756 | return false; |
ff59fc36 RM |
6757 | |
6758 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6759 | if (t->o->build_id.after_write_object_contents != NULL) |
6760 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 | 6761 | |
0a1b45a2 | 6762 | return true; |
252b5132 RH |
6763 | } |
6764 | ||
0a1b45a2 | 6765 | bool |
217aa764 | 6766 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6767 | { |
c044fabd | 6768 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6769 | return _bfd_elf_write_object_contents (abfd); |
6770 | } | |
c044fabd KH |
6771 | |
6772 | /* Given a section, search the header to find them. */ | |
6773 | ||
cb33740c | 6774 | unsigned int |
198beae2 | 6775 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6776 | { |
9c5bfbb7 | 6777 | const struct elf_backend_data *bed; |
91d6fa6a | 6778 | unsigned int sec_index; |
252b5132 | 6779 | |
9ad5cbcf AM |
6780 | if (elf_section_data (asect) != NULL |
6781 | && elf_section_data (asect)->this_idx != 0) | |
6782 | return elf_section_data (asect)->this_idx; | |
6783 | ||
6784 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6785 | sec_index = SHN_ABS; |
af746e92 | 6786 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6787 | sec_index = SHN_COMMON; |
af746e92 | 6788 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6789 | sec_index = SHN_UNDEF; |
af746e92 | 6790 | else |
91d6fa6a | 6791 | sec_index = SHN_BAD; |
252b5132 | 6792 | |
af746e92 | 6793 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6794 | if (bed->elf_backend_section_from_bfd_section) |
6795 | { | |
91d6fa6a | 6796 | int retval = sec_index; |
9ad5cbcf | 6797 | |
af746e92 AM |
6798 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6799 | return retval; | |
252b5132 RH |
6800 | } |
6801 | ||
91d6fa6a | 6802 | if (sec_index == SHN_BAD) |
af746e92 | 6803 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6804 | |
91d6fa6a | 6805 | return sec_index; |
252b5132 RH |
6806 | } |
6807 | ||
6808 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6809 | on error. */ | |
6810 | ||
6811 | int | |
217aa764 | 6812 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6813 | { |
6814 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6815 | int idx; | |
6816 | flagword flags = asym_ptr->flags; | |
6817 | ||
6818 | /* When gas creates relocations against local labels, it creates its | |
6819 | own symbol for the section, but does put the symbol into the | |
6820 | symbol chain, so udata is 0. When the linker is generating | |
6821 | relocatable output, this section symbol may be for one of the | |
6822 | input sections rather than the output section. */ | |
6823 | if (asym_ptr->udata.i == 0 | |
6824 | && (flags & BSF_SECTION_SYM) | |
6825 | && asym_ptr->section) | |
6826 | { | |
5372391b | 6827 | asection *sec; |
252b5132 | 6828 | |
5372391b AM |
6829 | sec = asym_ptr->section; |
6830 | if (sec->owner != abfd && sec->output_section != NULL) | |
6831 | sec = sec->output_section; | |
6832 | if (sec->owner == abfd | |
27e3da31 AM |
6833 | && sec->index < elf_num_section_syms (abfd) |
6834 | && elf_section_syms (abfd)[sec->index] != NULL) | |
6835 | asym_ptr->udata.i = elf_section_syms (abfd)[sec->index]->udata.i; | |
252b5132 RH |
6836 | } |
6837 | ||
6838 | idx = asym_ptr->udata.i; | |
6839 | ||
6840 | if (idx == 0) | |
6841 | { | |
6842 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6843 | which is used in a relocation entry. */ |
4eca0228 | 6844 | _bfd_error_handler |
695344c0 | 6845 | /* xgettext:c-format */ |
871b3ab2 | 6846 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6847 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6848 | bfd_set_error (bfd_error_no_symbols); |
6849 | return -1; | |
6850 | } | |
6851 | ||
6852 | #if DEBUG & 4 | |
6853 | { | |
6854 | fprintf (stderr, | |
cd9af601 AM |
6855 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6856 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6857 | fflush (stderr); |
6858 | } | |
6859 | #endif | |
6860 | ||
6861 | return idx; | |
6862 | } | |
6863 | ||
84d1d650 | 6864 | /* Rewrite program header information. */ |
252b5132 | 6865 | |
0a1b45a2 | 6866 | static bool |
c410035d | 6867 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd, bfd_vma maxpagesize) |
252b5132 | 6868 | { |
b34976b6 AM |
6869 | Elf_Internal_Ehdr *iehdr; |
6870 | struct elf_segment_map *map; | |
6871 | struct elf_segment_map *map_first; | |
6872 | struct elf_segment_map **pointer_to_map; | |
6873 | Elf_Internal_Phdr *segment; | |
6874 | asection *section; | |
6875 | unsigned int i; | |
6876 | unsigned int num_segments; | |
0a1b45a2 AM |
6877 | bool phdr_included = false; |
6878 | bool p_paddr_valid; | |
b34976b6 AM |
6879 | struct elf_segment_map *phdr_adjust_seg = NULL; |
6880 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6881 | const struct elf_backend_data *bed; |
502794d4 | 6882 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
bc67d8a6 | 6883 | |
caf47ea6 | 6884 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6885 | iehdr = elf_elfheader (ibfd); |
6886 | ||
bc67d8a6 | 6887 | map_first = NULL; |
c044fabd | 6888 | pointer_to_map = &map_first; |
252b5132 RH |
6889 | |
6890 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6891 | |
6892 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6893 | #define SEGMENT_END(segment, start) \ |
6894 | (start + (segment->p_memsz > segment->p_filesz \ | |
6895 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6896 | |
eecdbe52 JJ |
6897 | #define SECTION_SIZE(section, segment) \ |
6898 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6899 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6900 | ? section->size : 0) |
eecdbe52 | 6901 | |
b34976b6 | 6902 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6903 | the given segment. VMA addresses are compared. */ |
502794d4 CE |
6904 | #define IS_CONTAINED_BY_VMA(section, segment, opb) \ |
6905 | (section->vma * (opb) >= segment->p_vaddr \ | |
6906 | && (section->vma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6907 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6908 | |
b34976b6 | 6909 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6910 | the given segment. LMA addresses are compared. */ |
502794d4 CE |
6911 | #define IS_CONTAINED_BY_LMA(section, segment, base, opb) \ |
6912 | (section->lma * (opb) >= base \ | |
6913 | && (section->lma + SECTION_SIZE (section, segment) / (opb) >= section->lma) \ | |
6914 | && (section->lma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6915 | <= SEGMENT_END (segment, base))) |
252b5132 | 6916 | |
0efc80c8 L |
6917 | /* Handle PT_NOTE segment. */ |
6918 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6919 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6920 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6921 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6922 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6923 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6924 | |
0efc80c8 L |
6925 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6926 | etc. */ | |
6927 | #define IS_COREFILE_NOTE(p, s) \ | |
6928 | (IS_NOTE (p, s) \ | |
6929 | && bfd_get_format (ibfd) == bfd_core \ | |
6930 | && s->vma == 0 \ | |
6931 | && s->lma == 0) | |
6932 | ||
252b5132 RH |
6933 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6934 | linker, which generates a PT_INTERP section with p_vaddr and | |
6935 | p_memsz set to 0. */ | |
aecc8f8a AM |
6936 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6937 | (p->p_vaddr == 0 \ | |
6938 | && p->p_paddr == 0 \ | |
6939 | && p->p_memsz == 0 \ | |
6940 | && p->p_filesz > 0 \ | |
6941 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6942 | && s->size > 0 \ |
aecc8f8a | 6943 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6944 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6945 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6946 | |
bc67d8a6 NC |
6947 | /* Decide if the given section should be included in the given segment. |
6948 | A section will be included if: | |
f5ffc919 | 6949 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6950 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6951 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6952 | segment. |
bc67d8a6 | 6953 | 3. There is an output section associated with it, |
eecdbe52 | 6954 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6955 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6956 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6957 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6958 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6959 | (with the possible exception of .dynamic). */ |
502794d4 | 6960 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed, opb) \ |
2b05f1b7 | 6961 | ((((segment->p_paddr \ |
502794d4 CE |
6962 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr, opb) \ |
6963 | : IS_CONTAINED_BY_VMA (section, segment, opb)) \ | |
2b05f1b7 | 6964 | && (section->flags & SEC_ALLOC) != 0) \ |
0efc80c8 | 6965 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6966 | && segment->p_type != PT_GNU_STACK \ |
6967 | && (segment->p_type != PT_TLS \ | |
6968 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6969 | && (segment->p_type == PT_LOAD \ | |
6970 | || segment->p_type == PT_TLS \ | |
6971 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6972 | && (segment->p_type != PT_DYNAMIC \ | |
6973 | || SECTION_SIZE (section, segment) > 0 \ | |
6974 | || (segment->p_paddr \ | |
502794d4 CE |
6975 | ? segment->p_paddr != section->lma * (opb) \ |
6976 | : segment->p_vaddr != section->vma * (opb)) \ | |
fd361982 | 6977 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6978 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6979 | |
9f17e2a6 L |
6980 | /* If the output section of a section in the input segment is NULL, |
6981 | it is removed from the corresponding output segment. */ | |
502794d4 CE |
6982 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed, opb) \ |
6983 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb) \ | |
9f17e2a6 L |
6984 | && section->output_section != NULL) |
6985 | ||
b34976b6 | 6986 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6987 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6988 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6989 | ||
6990 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6991 | their VMA address ranges and their LMA address ranges overlap. | |
6992 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6993 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6994 | to the same VMA range, but with the .data section mapped to a different | |
6995 | LMA. */ | |
aecc8f8a | 6996 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6997 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6998 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6999 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 7000 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 | 7001 | |
c82ebeb7 | 7002 | /* Initialise the segment mark field, and discard stupid alignment. */ |
bc67d8a6 | 7003 | for (section = ibfd->sections; section != NULL; section = section->next) |
c82ebeb7 AM |
7004 | { |
7005 | asection *o = section->output_section; | |
7006 | if (o != NULL && o->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
7007 | o->alignment_power = 0; | |
7008 | section->segment_mark = false; | |
7009 | } | |
bc67d8a6 | 7010 | |
5c44b38e AM |
7011 | /* The Solaris linker creates program headers in which all the |
7012 | p_paddr fields are zero. When we try to objcopy or strip such a | |
7013 | file, we get confused. Check for this case, and if we find it | |
7014 | don't set the p_paddr_valid fields. */ | |
0a1b45a2 | 7015 | p_paddr_valid = false; |
5c44b38e AM |
7016 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7017 | i < num_segments; | |
7018 | i++, segment++) | |
7019 | if (segment->p_paddr != 0) | |
7020 | { | |
0a1b45a2 | 7021 | p_paddr_valid = true; |
5c44b38e AM |
7022 | break; |
7023 | } | |
7024 | ||
252b5132 | 7025 | /* Scan through the segments specified in the program header |
bc67d8a6 | 7026 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 7027 | in the loadable segments. These can be created by weird |
aecc8f8a | 7028 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
7029 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7030 | i < num_segments; | |
c044fabd | 7031 | i++, segment++) |
252b5132 | 7032 | { |
252b5132 | 7033 | unsigned int j; |
c044fabd | 7034 | Elf_Internal_Phdr *segment2; |
252b5132 | 7035 | |
aecc8f8a AM |
7036 | if (segment->p_type == PT_INTERP) |
7037 | for (section = ibfd->sections; section; section = section->next) | |
7038 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
7039 | { | |
7040 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 7041 | assignment code will work. */ |
502794d4 | 7042 | segment->p_vaddr = section->vma * opb; |
aecc8f8a AM |
7043 | break; |
7044 | } | |
7045 | ||
bc67d8a6 | 7046 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
7047 | { |
7048 | /* Remove PT_GNU_RELRO segment. */ | |
7049 | if (segment->p_type == PT_GNU_RELRO) | |
7050 | segment->p_type = PT_NULL; | |
7051 | continue; | |
7052 | } | |
c044fabd | 7053 | |
bc67d8a6 | 7054 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 7055 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
7056 | { |
7057 | bfd_signed_vma extra_length; | |
c044fabd | 7058 | |
bc67d8a6 | 7059 | if (segment2->p_type != PT_LOAD |
0067a569 | 7060 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 7061 | continue; |
c044fabd | 7062 | |
bc67d8a6 NC |
7063 | /* Merge the two segments together. */ |
7064 | if (segment2->p_vaddr < segment->p_vaddr) | |
7065 | { | |
c044fabd | 7066 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 7067 | SEGMENT. */ |
0067a569 AM |
7068 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
7069 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 7070 | |
bc67d8a6 NC |
7071 | if (extra_length > 0) |
7072 | { | |
0067a569 | 7073 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
7074 | segment2->p_filesz += extra_length; |
7075 | } | |
c044fabd | 7076 | |
bc67d8a6 | 7077 | segment->p_type = PT_NULL; |
c044fabd | 7078 | |
bc67d8a6 NC |
7079 | /* Since we have deleted P we must restart the outer loop. */ |
7080 | i = 0; | |
7081 | segment = elf_tdata (ibfd)->phdr; | |
7082 | break; | |
7083 | } | |
7084 | else | |
7085 | { | |
c044fabd | 7086 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7087 | SEGMENT2. */ |
0067a569 AM |
7088 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7089 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7090 | |
bc67d8a6 NC |
7091 | if (extra_length > 0) |
7092 | { | |
0067a569 | 7093 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7094 | segment->p_filesz += extra_length; |
7095 | } | |
c044fabd | 7096 | |
bc67d8a6 NC |
7097 | segment2->p_type = PT_NULL; |
7098 | } | |
7099 | } | |
7100 | } | |
c044fabd | 7101 | |
bc67d8a6 NC |
7102 | /* The second scan attempts to assign sections to segments. */ |
7103 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7104 | i < num_segments; | |
0067a569 | 7105 | i++, segment++) |
bc67d8a6 | 7106 | { |
0067a569 AM |
7107 | unsigned int section_count; |
7108 | asection **sections; | |
7109 | asection *output_section; | |
7110 | unsigned int isec; | |
9933dc52 AM |
7111 | asection *matching_lma; |
7112 | asection *suggested_lma; | |
0067a569 | 7113 | unsigned int j; |
446f7ed5 | 7114 | size_t amt; |
0067a569 | 7115 | asection *first_section; |
bc67d8a6 NC |
7116 | |
7117 | if (segment->p_type == PT_NULL) | |
7118 | continue; | |
c044fabd | 7119 | |
9f17e2a6 | 7120 | first_section = NULL; |
bc67d8a6 | 7121 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7122 | for (section = ibfd->sections, section_count = 0; |
7123 | section != NULL; | |
7124 | section = section->next) | |
9f17e2a6 L |
7125 | { |
7126 | /* Find the first section in the input segment, which may be | |
7127 | removed from the corresponding output segment. */ | |
502794d4 | 7128 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb)) |
9f17e2a6 L |
7129 | { |
7130 | if (first_section == NULL) | |
7131 | first_section = section; | |
7132 | if (section->output_section != NULL) | |
7133 | ++section_count; | |
7134 | } | |
7135 | } | |
811072d8 | 7136 | |
b5f852ea NC |
7137 | /* Allocate a segment map big enough to contain |
7138 | all of the sections we have selected. */ | |
00bee008 | 7139 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7140 | amt += section_count * sizeof (asection *); |
a50b1753 | 7141 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7142 | if (map == NULL) |
0a1b45a2 | 7143 | return false; |
252b5132 RH |
7144 | |
7145 | /* Initialise the fields of the segment map. Default to | |
7146 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7147 | map->next = NULL; |
7148 | map->p_type = segment->p_type; | |
7149 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7150 | map->p_flags_valid = 1; |
55d55ac7 | 7151 | |
c410035d AM |
7152 | if (map->p_type == PT_LOAD |
7153 | && (ibfd->flags & D_PAGED) != 0 | |
7154 | && maxpagesize > 1 | |
7155 | && segment->p_align > 1) | |
7156 | { | |
7157 | map->p_align = segment->p_align; | |
7158 | if (segment->p_align > maxpagesize) | |
7159 | map->p_align = maxpagesize; | |
7160 | map->p_align_valid = 1; | |
7161 | } | |
7162 | ||
9f17e2a6 L |
7163 | /* If the first section in the input segment is removed, there is |
7164 | no need to preserve segment physical address in the corresponding | |
7165 | output segment. */ | |
945c025a | 7166 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7167 | { |
7168 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7169 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7170 | } |
252b5132 RH |
7171 | |
7172 | /* Determine if this segment contains the ELF file header | |
7173 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7174 | map->includes_filehdr = (segment->p_offset == 0 |
7175 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7176 | map->includes_phdrs = 0; |
252b5132 | 7177 | |
0067a569 | 7178 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7179 | { |
bc67d8a6 NC |
7180 | map->includes_phdrs = |
7181 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7182 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7183 | >= ((bfd_vma) iehdr->e_phoff |
7184 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7185 | |
bc67d8a6 | 7186 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
0a1b45a2 | 7187 | phdr_included = true; |
252b5132 RH |
7188 | } |
7189 | ||
bc67d8a6 | 7190 | if (section_count == 0) |
252b5132 RH |
7191 | { |
7192 | /* Special segments, such as the PT_PHDR segment, may contain | |
7193 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7194 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7195 | a warning is produced. |
f98450c6 NC |
7196 | There is however the valid use case of embedded systems which |
7197 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7198 | flash memory with zeros. No warning is shown for that case. */ | |
7199 | if (segment->p_type == PT_LOAD | |
7200 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7201 | /* xgettext:c-format */ | |
9793eb77 AM |
7202 | _bfd_error_handler |
7203 | (_("%pB: warning: empty loadable segment detected" | |
7204 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7205 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7206 | |
502794d4 | 7207 | map->p_vaddr_offset = segment->p_vaddr / opb; |
bc67d8a6 | 7208 | map->count = 0; |
c044fabd KH |
7209 | *pointer_to_map = map; |
7210 | pointer_to_map = &map->next; | |
252b5132 RH |
7211 | |
7212 | continue; | |
7213 | } | |
7214 | ||
7215 | /* Now scan the sections in the input BFD again and attempt | |
7216 | to add their corresponding output sections to the segment map. | |
7217 | The problem here is how to handle an output section which has | |
7218 | been moved (ie had its LMA changed). There are four possibilities: | |
7219 | ||
7220 | 1. None of the sections have been moved. | |
7221 | In this case we can continue to use the segment LMA from the | |
7222 | input BFD. | |
7223 | ||
7224 | 2. All of the sections have been moved by the same amount. | |
7225 | In this case we can change the segment's LMA to match the LMA | |
7226 | of the first section. | |
7227 | ||
7228 | 3. Some of the sections have been moved, others have not. | |
7229 | In this case those sections which have not been moved can be | |
7230 | placed in the current segment which will have to have its size, | |
7231 | and possibly its LMA changed, and a new segment or segments will | |
7232 | have to be created to contain the other sections. | |
7233 | ||
b5f852ea | 7234 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7235 | In this case we can change the segment's LMA to match the LMA |
7236 | of the first section and we will have to create a new segment | |
7237 | or segments to contain the other sections. | |
7238 | ||
7239 | In order to save time, we allocate an array to hold the section | |
7240 | pointers that we are interested in. As these sections get assigned | |
7241 | to a segment, they are removed from this array. */ | |
7242 | ||
446f7ed5 AM |
7243 | amt = section_count * sizeof (asection *); |
7244 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7245 | if (sections == NULL) |
0a1b45a2 | 7246 | return false; |
252b5132 RH |
7247 | |
7248 | /* Step One: Scan for segment vs section LMA conflicts. | |
7249 | Also add the sections to the section array allocated above. | |
7250 | Also add the sections to the current segment. In the common | |
7251 | case, where the sections have not been moved, this means that | |
7252 | we have completely filled the segment, and there is nothing | |
7253 | more to do. */ | |
252b5132 | 7254 | isec = 0; |
9933dc52 AM |
7255 | matching_lma = NULL; |
7256 | suggested_lma = NULL; | |
252b5132 | 7257 | |
461c4b2e | 7258 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7259 | section != NULL; |
7260 | section = section->next) | |
252b5132 | 7261 | { |
502794d4 | 7262 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed, opb)) |
c0f7859b | 7263 | { |
bc67d8a6 NC |
7264 | output_section = section->output_section; |
7265 | ||
0067a569 | 7266 | sections[j++] = section; |
252b5132 RH |
7267 | |
7268 | /* The Solaris native linker always sets p_paddr to 0. | |
7269 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7270 | correct value. Note - some backends require that |
7271 | p_paddr be left as zero. */ | |
5c44b38e | 7272 | if (!p_paddr_valid |
4455705d | 7273 | && segment->p_vaddr != 0 |
0067a569 | 7274 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7275 | && isec == 0 |
bc67d8a6 | 7276 | && output_section->lma != 0 |
9933dc52 AM |
7277 | && (align_power (segment->p_vaddr |
7278 | + (map->includes_filehdr | |
7279 | ? iehdr->e_ehsize : 0) | |
7280 | + (map->includes_phdrs | |
7281 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7282 | : 0), | |
66631823 CE |
7283 | output_section->alignment_power * opb) |
7284 | == (output_section->vma * opb))) | |
bc67d8a6 | 7285 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7286 | |
7287 | /* Match up the physical address of the segment with the | |
7288 | LMA address of the output section. */ | |
502794d4 CE |
7289 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7290 | opb) | |
5e8d7549 | 7291 | || IS_COREFILE_NOTE (segment, section) |
0067a569 | 7292 | || (bed->want_p_paddr_set_to_zero |
502794d4 | 7293 | && IS_CONTAINED_BY_VMA (output_section, segment, opb))) |
252b5132 | 7294 | { |
9933dc52 AM |
7295 | if (matching_lma == NULL |
7296 | || output_section->lma < matching_lma->lma) | |
7297 | matching_lma = output_section; | |
252b5132 RH |
7298 | |
7299 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7300 | then it does not overlap any other section within that |
252b5132 | 7301 | segment. */ |
0067a569 AM |
7302 | map->sections[isec++] = output_section; |
7303 | } | |
9933dc52 AM |
7304 | else if (suggested_lma == NULL) |
7305 | suggested_lma = output_section; | |
147d51c2 L |
7306 | |
7307 | if (j == section_count) | |
7308 | break; | |
252b5132 RH |
7309 | } |
7310 | } | |
7311 | ||
bc67d8a6 | 7312 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7313 | |
7314 | /* Step Two: Adjust the physical address of the current segment, | |
7315 | if necessary. */ | |
bc67d8a6 | 7316 | if (isec == section_count) |
252b5132 RH |
7317 | { |
7318 | /* All of the sections fitted within the segment as currently | |
7319 | specified. This is the default case. Add the segment to | |
7320 | the list of built segments and carry on to process the next | |
7321 | program header in the input BFD. */ | |
bc67d8a6 | 7322 | map->count = section_count; |
c044fabd KH |
7323 | *pointer_to_map = map; |
7324 | pointer_to_map = &map->next; | |
08a40648 | 7325 | |
5c44b38e | 7326 | if (p_paddr_valid |
30fe1832 AM |
7327 | && !bed->want_p_paddr_set_to_zero) |
7328 | { | |
7329 | bfd_vma hdr_size = 0; | |
7330 | if (map->includes_filehdr) | |
7331 | hdr_size = iehdr->e_ehsize; | |
7332 | if (map->includes_phdrs) | |
7333 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7334 | ||
7335 | /* Account for padding before the first section in the | |
7336 | segment. */ | |
502794d4 CE |
7337 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
7338 | - matching_lma->lma); | |
30fe1832 | 7339 | } |
08a40648 | 7340 | |
252b5132 RH |
7341 | free (sections); |
7342 | continue; | |
7343 | } | |
252b5132 RH |
7344 | else |
7345 | { | |
9933dc52 AM |
7346 | /* Change the current segment's physical address to match |
7347 | the LMA of the first section that fitted, or if no | |
7348 | section fitted, the first section. */ | |
7349 | if (matching_lma == NULL) | |
7350 | matching_lma = suggested_lma; | |
7351 | ||
66631823 | 7352 | map->p_paddr = matching_lma->lma * opb; |
72730e0c | 7353 | |
bc67d8a6 NC |
7354 | /* Offset the segment physical address from the lma |
7355 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7356 | if (map->includes_phdrs) |
010c8431 | 7357 | { |
9933dc52 AM |
7358 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7359 | ||
7360 | /* iehdr->e_phnum is just an estimate of the number | |
7361 | of program headers that we will need. Make a note | |
7362 | here of the number we used and the segment we chose | |
7363 | to hold these headers, so that we can adjust the | |
7364 | offset when we know the correct value. */ | |
7365 | phdr_adjust_num = iehdr->e_phnum; | |
7366 | phdr_adjust_seg = map; | |
010c8431 | 7367 | } |
252b5132 | 7368 | |
9933dc52 | 7369 | if (map->includes_filehdr) |
bc67d8a6 | 7370 | { |
9933dc52 AM |
7371 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7372 | map->p_paddr -= iehdr->e_ehsize; | |
7373 | /* We've subtracted off the size of headers from the | |
7374 | first section lma, but there may have been some | |
7375 | alignment padding before that section too. Try to | |
7376 | account for that by adjusting the segment lma down to | |
7377 | the same alignment. */ | |
7378 | if (segment->p_align != 0 && segment->p_align < align) | |
7379 | align = segment->p_align; | |
66631823 | 7380 | map->p_paddr &= -(align * opb); |
bc67d8a6 | 7381 | } |
252b5132 RH |
7382 | } |
7383 | ||
7384 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7385 | those that fit to the current segment and removing them from the |
252b5132 RH |
7386 | sections array; but making sure not to leave large gaps. Once all |
7387 | possible sections have been assigned to the current segment it is | |
7388 | added to the list of built segments and if sections still remain | |
7389 | to be assigned, a new segment is constructed before repeating | |
7390 | the loop. */ | |
7391 | isec = 0; | |
7392 | do | |
7393 | { | |
bc67d8a6 | 7394 | map->count = 0; |
9933dc52 | 7395 | suggested_lma = NULL; |
252b5132 RH |
7396 | |
7397 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7398 | for (j = 0; j < section_count; j++) |
252b5132 | 7399 | { |
bc67d8a6 | 7400 | section = sections[j]; |
252b5132 | 7401 | |
bc67d8a6 | 7402 | if (section == NULL) |
252b5132 RH |
7403 | continue; |
7404 | ||
bc67d8a6 | 7405 | output_section = section->output_section; |
252b5132 | 7406 | |
bc67d8a6 | 7407 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7408 | |
502794d4 CE |
7409 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7410 | opb) | |
bc67d8a6 | 7411 | || IS_COREFILE_NOTE (segment, section)) |
252b5132 | 7412 | { |
bc67d8a6 | 7413 | if (map->count == 0) |
252b5132 RH |
7414 | { |
7415 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7416 | the beginning of the segment, then something is |
7417 | wrong. */ | |
9933dc52 AM |
7418 | if (align_power (map->p_paddr |
7419 | + (map->includes_filehdr | |
7420 | ? iehdr->e_ehsize : 0) | |
7421 | + (map->includes_phdrs | |
7422 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7423 | : 0), | |
66631823 CE |
7424 | output_section->alignment_power * opb) |
7425 | != output_section->lma * opb) | |
9aea1e31 | 7426 | goto sorry; |
252b5132 RH |
7427 | } |
7428 | else | |
7429 | { | |
0067a569 | 7430 | asection *prev_sec; |
252b5132 | 7431 | |
bc67d8a6 | 7432 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7433 | |
7434 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7435 | and the start of this section is more than |
7436 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7437 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7438 | maxpagesize) |
caf47ea6 | 7439 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7440 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7441 | > output_section->lma)) |
252b5132 | 7442 | { |
9933dc52 AM |
7443 | if (suggested_lma == NULL) |
7444 | suggested_lma = output_section; | |
252b5132 RH |
7445 | |
7446 | continue; | |
7447 | } | |
7448 | } | |
7449 | ||
bc67d8a6 | 7450 | map->sections[map->count++] = output_section; |
252b5132 RH |
7451 | ++isec; |
7452 | sections[j] = NULL; | |
9933dc52 | 7453 | if (segment->p_type == PT_LOAD) |
0a1b45a2 | 7454 | section->segment_mark = true; |
0067a569 | 7455 | } |
9933dc52 AM |
7456 | else if (suggested_lma == NULL) |
7457 | suggested_lma = output_section; | |
252b5132 RH |
7458 | } |
7459 | ||
beab4532 NC |
7460 | /* PR 23932. A corrupt input file may contain sections that cannot |
7461 | be assigned to any segment - because for example they have a | |
9984857c NC |
7462 | negative size - or segments that do not contain any sections. |
7463 | But there are also valid reasons why a segment can be empty. | |
7464 | So allow a count of zero. */ | |
252b5132 RH |
7465 | |
7466 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7467 | *pointer_to_map = map; |
7468 | pointer_to_map = &map->next; | |
252b5132 | 7469 | |
bc67d8a6 | 7470 | if (isec < section_count) |
252b5132 RH |
7471 | { |
7472 | /* We still have not allocated all of the sections to | |
7473 | segments. Create a new segment here, initialise it | |
7474 | and carry on looping. */ | |
00bee008 | 7475 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7476 | amt += section_count * sizeof (asection *); |
5964fc3a | 7477 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7478 | if (map == NULL) |
5ed6aba4 NC |
7479 | { |
7480 | free (sections); | |
0a1b45a2 | 7481 | return false; |
5ed6aba4 | 7482 | } |
252b5132 RH |
7483 | |
7484 | /* Initialise the fields of the segment map. Set the physical | |
7485 | physical address to the LMA of the first section that has | |
7486 | not yet been assigned. */ | |
0067a569 AM |
7487 | map->next = NULL; |
7488 | map->p_type = segment->p_type; | |
7489 | map->p_flags = segment->p_flags; | |
7490 | map->p_flags_valid = 1; | |
66631823 | 7491 | map->p_paddr = suggested_lma->lma * opb; |
5c44b38e | 7492 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7493 | map->includes_filehdr = 0; |
0067a569 | 7494 | map->includes_phdrs = 0; |
252b5132 | 7495 | } |
9984857c NC |
7496 | |
7497 | continue; | |
7498 | sorry: | |
7499 | bfd_set_error (bfd_error_sorry); | |
7500 | free (sections); | |
0a1b45a2 | 7501 | return false; |
252b5132 | 7502 | } |
bc67d8a6 | 7503 | while (isec < section_count); |
252b5132 RH |
7504 | |
7505 | free (sections); | |
7506 | } | |
7507 | ||
12bd6957 | 7508 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7509 | |
7510 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7511 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7512 | the offset if necessary. */ |
7513 | if (phdr_adjust_seg != NULL) | |
7514 | { | |
7515 | unsigned int count; | |
c044fabd | 7516 | |
bc67d8a6 | 7517 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7518 | count++; |
252b5132 | 7519 | |
bc67d8a6 NC |
7520 | if (count > phdr_adjust_num) |
7521 | phdr_adjust_seg->p_paddr | |
7522 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7523 | |
7524 | for (map = map_first; map != NULL; map = map->next) | |
7525 | if (map->p_type == PT_PHDR) | |
7526 | { | |
7527 | bfd_vma adjust | |
7528 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7529 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7530 | break; | |
7531 | } | |
bc67d8a6 | 7532 | } |
c044fabd | 7533 | |
bc67d8a6 | 7534 | #undef SEGMENT_END |
eecdbe52 | 7535 | #undef SECTION_SIZE |
bc67d8a6 NC |
7536 | #undef IS_CONTAINED_BY_VMA |
7537 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7538 | #undef IS_NOTE |
252b5132 | 7539 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7540 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7541 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7542 | #undef INCLUDE_SECTION_IN_SEGMENT |
7543 | #undef SEGMENT_AFTER_SEGMENT | |
7544 | #undef SEGMENT_OVERLAPS | |
0a1b45a2 | 7545 | return true; |
252b5132 RH |
7546 | } |
7547 | ||
74e315db L |
7548 | /* Return true if p_align in the ELF program header in ABFD is valid. */ |
7549 | ||
7550 | static bool | |
7551 | elf_is_p_align_valid (bfd *abfd) | |
7552 | { | |
7553 | unsigned int i; | |
7554 | Elf_Internal_Phdr *segment; | |
7555 | unsigned int num_segments; | |
7556 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7557 | bfd_size_type maxpagesize = bed->maxpagesize; | |
7558 | bfd_size_type p_align = bed->p_align; | |
7559 | ||
7560 | /* Return true if the default p_align value isn't set or the maximum | |
7561 | page size is the same as the minimum page size. */ | |
7562 | if (p_align == 0 || maxpagesize == bed->minpagesize) | |
7563 | return true; | |
7564 | ||
7565 | /* When the default p_align value is set, p_align may be set to the | |
7566 | default p_align value while segments are aligned to the maximum | |
7567 | page size. In this case, the input p_align will be ignored and | |
7568 | the maximum page size will be used to align the output segments. */ | |
7569 | segment = elf_tdata (abfd)->phdr; | |
7570 | num_segments = elf_elfheader (abfd)->e_phnum; | |
7571 | for (i = 0; i < num_segments; i++, segment++) | |
7572 | if (segment->p_type == PT_LOAD | |
7573 | && (segment->p_align != p_align | |
7574 | || vma_page_aligned_bias (segment->p_vaddr, | |
7575 | segment->p_offset, | |
7576 | maxpagesize) != 0)) | |
7577 | return true; | |
7578 | ||
7579 | return false; | |
7580 | } | |
7581 | ||
84d1d650 L |
7582 | /* Copy ELF program header information. */ |
7583 | ||
0a1b45a2 | 7584 | static bool |
84d1d650 L |
7585 | copy_elf_program_header (bfd *ibfd, bfd *obfd) |
7586 | { | |
7587 | Elf_Internal_Ehdr *iehdr; | |
7588 | struct elf_segment_map *map; | |
7589 | struct elf_segment_map *map_first; | |
7590 | struct elf_segment_map **pointer_to_map; | |
7591 | Elf_Internal_Phdr *segment; | |
7592 | unsigned int i; | |
7593 | unsigned int num_segments; | |
0a1b45a2 AM |
7594 | bool phdr_included = false; |
7595 | bool p_paddr_valid; | |
74e315db | 7596 | bool p_palign_valid; |
502794d4 | 7597 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
84d1d650 L |
7598 | |
7599 | iehdr = elf_elfheader (ibfd); | |
7600 | ||
7601 | map_first = NULL; | |
7602 | pointer_to_map = &map_first; | |
7603 | ||
88967714 AM |
7604 | /* If all the segment p_paddr fields are zero, don't set |
7605 | map->p_paddr_valid. */ | |
0a1b45a2 | 7606 | p_paddr_valid = false; |
84d1d650 | 7607 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7608 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7609 | i < num_segments; | |
7610 | i++, segment++) | |
7611 | if (segment->p_paddr != 0) | |
7612 | { | |
0a1b45a2 | 7613 | p_paddr_valid = true; |
88967714 AM |
7614 | break; |
7615 | } | |
7616 | ||
74e315db L |
7617 | p_palign_valid = elf_is_p_align_valid (ibfd); |
7618 | ||
84d1d650 L |
7619 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7620 | i < num_segments; | |
7621 | i++, segment++) | |
7622 | { | |
7623 | asection *section; | |
7624 | unsigned int section_count; | |
986f0783 | 7625 | size_t amt; |
84d1d650 | 7626 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7627 | asection *first_section = NULL; |
a76e6f2f | 7628 | asection *lowest_section; |
84d1d650 | 7629 | |
84d1d650 L |
7630 | /* Compute how many sections are in this segment. */ |
7631 | for (section = ibfd->sections, section_count = 0; | |
7632 | section != NULL; | |
7633 | section = section->next) | |
7634 | { | |
7635 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7636 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7637 | { |
a76e6f2f AM |
7638 | if (first_section == NULL) |
7639 | first_section = section; | |
3271a814 NS |
7640 | section_count++; |
7641 | } | |
84d1d650 L |
7642 | } |
7643 | ||
7644 | /* Allocate a segment map big enough to contain | |
7645 | all of the sections we have selected. */ | |
00bee008 | 7646 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7647 | amt += section_count * sizeof (asection *); |
a50b1753 | 7648 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 | 7649 | if (map == NULL) |
0a1b45a2 | 7650 | return false; |
84d1d650 L |
7651 | |
7652 | /* Initialize the fields of the output segment map with the | |
7653 | input segment. */ | |
7654 | map->next = NULL; | |
7655 | map->p_type = segment->p_type; | |
7656 | map->p_flags = segment->p_flags; | |
7657 | map->p_flags_valid = 1; | |
7658 | map->p_paddr = segment->p_paddr; | |
88967714 | 7659 | map->p_paddr_valid = p_paddr_valid; |
3f570048 | 7660 | map->p_align = segment->p_align; |
74e315db | 7661 | map->p_align_valid = p_palign_valid; |
3271a814 | 7662 | map->p_vaddr_offset = 0; |
84d1d650 | 7663 | |
04c3a755 NS |
7664 | if (map->p_type == PT_GNU_RELRO |
7665 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7666 | { |
7667 | /* The PT_GNU_RELRO segment may contain the first a few | |
7668 | bytes in the .got.plt section even if the whole .got.plt | |
7669 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7670 | change the size of the PT_GNU_RELRO segment. |
7671 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7672 | systems. */ | |
9433b9b1 | 7673 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7674 | map->p_size_valid = 1; |
7675 | } | |
7676 | ||
84d1d650 L |
7677 | /* Determine if this segment contains the ELF file header |
7678 | and if it contains the program headers themselves. */ | |
7679 | map->includes_filehdr = (segment->p_offset == 0 | |
7680 | && segment->p_filesz >= iehdr->e_ehsize); | |
7681 | ||
7682 | map->includes_phdrs = 0; | |
7683 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7684 | { | |
7685 | map->includes_phdrs = | |
7686 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7687 | && (segment->p_offset + segment->p_filesz | |
7688 | >= ((bfd_vma) iehdr->e_phoff | |
7689 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7690 | ||
7691 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
0a1b45a2 | 7692 | phdr_included = true; |
84d1d650 L |
7693 | } |
7694 | ||
bbefd0a9 | 7695 | lowest_section = NULL; |
84d1d650 L |
7696 | if (section_count != 0) |
7697 | { | |
7698 | unsigned int isec = 0; | |
7699 | ||
53020534 | 7700 | for (section = first_section; |
84d1d650 L |
7701 | section != NULL; |
7702 | section = section->next) | |
7703 | { | |
7704 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7705 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7706 | { |
7707 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7708 | if ((section->flags & SEC_ALLOC) != 0) |
7709 | { | |
7710 | bfd_vma seg_off; | |
7711 | ||
bbefd0a9 AM |
7712 | if (lowest_section == NULL |
7713 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7714 | lowest_section = section; |
7715 | ||
a76e6f2f AM |
7716 | /* Section lmas are set up from PT_LOAD header |
7717 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7718 | If this header has a p_paddr that disagrees | |
7719 | with the section lma, flag the p_paddr as | |
7720 | invalid. */ | |
7721 | if ((section->flags & SEC_LOAD) != 0) | |
7722 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7723 | else | |
7724 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
502794d4 | 7725 | if (section->lma * opb - segment->p_paddr != seg_off) |
0a1b45a2 | 7726 | map->p_paddr_valid = false; |
a76e6f2f | 7727 | } |
53020534 L |
7728 | if (isec == section_count) |
7729 | break; | |
7730 | } | |
84d1d650 L |
7731 | } |
7732 | } | |
7733 | ||
5d695627 | 7734 | if (section_count == 0) |
502794d4 | 7735 | map->p_vaddr_offset = segment->p_vaddr / opb; |
30fe1832 AM |
7736 | else if (map->p_paddr_valid) |
7737 | { | |
7738 | /* Account for padding before the first section in the segment. */ | |
7739 | bfd_vma hdr_size = 0; | |
7740 | if (map->includes_filehdr) | |
7741 | hdr_size = iehdr->e_ehsize; | |
7742 | if (map->includes_phdrs) | |
7743 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7744 | ||
502794d4 | 7745 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
30fe1832 AM |
7746 | - (lowest_section ? lowest_section->lma : 0)); |
7747 | } | |
a76e6f2f | 7748 | |
84d1d650 L |
7749 | map->count = section_count; |
7750 | *pointer_to_map = map; | |
7751 | pointer_to_map = &map->next; | |
7752 | } | |
7753 | ||
12bd6957 | 7754 | elf_seg_map (obfd) = map_first; |
0a1b45a2 | 7755 | return true; |
84d1d650 L |
7756 | } |
7757 | ||
7758 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7759 | information. */ | |
7760 | ||
0a1b45a2 | 7761 | static bool |
84d1d650 L |
7762 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
7763 | { | |
c410035d AM |
7764 | bfd_vma maxpagesize; |
7765 | ||
84d1d650 L |
7766 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7767 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 7768 | return true; |
84d1d650 L |
7769 | |
7770 | if (elf_tdata (ibfd)->phdr == NULL) | |
0a1b45a2 | 7771 | return true; |
84d1d650 L |
7772 | |
7773 | if (ibfd->xvec == obfd->xvec) | |
7774 | { | |
cb3ff1e5 NC |
7775 | /* Check to see if any sections in the input BFD |
7776 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7777 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7778 | asection *section, *osec; |
7779 | unsigned int i, num_segments; | |
7780 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7781 | const struct elf_backend_data *bed; |
7782 | ||
7783 | bed = get_elf_backend_data (ibfd); | |
7784 | ||
7785 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7786 | if (bed->want_p_paddr_set_to_zero) | |
7787 | goto rewrite; | |
84d1d650 L |
7788 | |
7789 | /* Initialize the segment mark field. */ | |
7790 | for (section = obfd->sections; section != NULL; | |
7791 | section = section->next) | |
0a1b45a2 | 7792 | section->segment_mark = false; |
84d1d650 L |
7793 | |
7794 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7795 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7796 | i < num_segments; | |
7797 | i++, segment++) | |
7798 | { | |
5f6999aa NC |
7799 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7800 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7801 | which severly confuses things, so always regenerate the segment | |
7802 | map in this case. */ | |
7803 | if (segment->p_paddr == 0 | |
7804 | && segment->p_memsz == 0 | |
7805 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7806 | goto rewrite; |
5f6999aa | 7807 | |
84d1d650 L |
7808 | for (section = ibfd->sections; |
7809 | section != NULL; section = section->next) | |
7810 | { | |
7811 | /* We mark the output section so that we know it comes | |
7812 | from the input BFD. */ | |
7813 | osec = section->output_section; | |
7814 | if (osec) | |
0a1b45a2 | 7815 | osec->segment_mark = true; |
84d1d650 L |
7816 | |
7817 | /* Check if this section is covered by the segment. */ | |
7818 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7819 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7820 | { |
7821 | /* FIXME: Check if its output section is changed or | |
7822 | removed. What else do we need to check? */ | |
7823 | if (osec == NULL | |
7824 | || section->flags != osec->flags | |
7825 | || section->lma != osec->lma | |
7826 | || section->vma != osec->vma | |
7827 | || section->size != osec->size | |
7828 | || section->rawsize != osec->rawsize | |
7829 | || section->alignment_power != osec->alignment_power) | |
7830 | goto rewrite; | |
7831 | } | |
7832 | } | |
7833 | } | |
7834 | ||
cb3ff1e5 | 7835 | /* Check to see if any output section do not come from the |
84d1d650 L |
7836 | input BFD. */ |
7837 | for (section = obfd->sections; section != NULL; | |
7838 | section = section->next) | |
7839 | { | |
535b785f | 7840 | if (!section->segment_mark) |
84d1d650 L |
7841 | goto rewrite; |
7842 | else | |
0a1b45a2 | 7843 | section->segment_mark = false; |
84d1d650 L |
7844 | } |
7845 | ||
7846 | return copy_elf_program_header (ibfd, obfd); | |
7847 | } | |
7848 | ||
dc1e8a47 | 7849 | rewrite: |
c410035d | 7850 | maxpagesize = 0; |
f1d85785 L |
7851 | if (ibfd->xvec == obfd->xvec) |
7852 | { | |
7853 | /* When rewriting program header, set the output maxpagesize to | |
7854 | the maximum alignment of input PT_LOAD segments. */ | |
7855 | Elf_Internal_Phdr *segment; | |
7856 | unsigned int i; | |
7857 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
f1d85785 L |
7858 | |
7859 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7860 | i < num_segments; | |
7861 | i++, segment++) | |
7862 | if (segment->p_type == PT_LOAD | |
7863 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7864 | { |
7865 | /* PR 17512: file: f17299af. */ | |
7866 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7867 | /* xgettext:c-format */ |
2dcf00ce AM |
7868 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7869 | PRIx64 " is too large"), | |
7870 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7871 | else |
7872 | maxpagesize = segment->p_align; | |
7873 | } | |
f1d85785 | 7874 | } |
c410035d AM |
7875 | if (maxpagesize == 0) |
7876 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; | |
f1d85785 | 7877 | |
c410035d | 7878 | return rewrite_elf_program_header (ibfd, obfd, maxpagesize); |
84d1d650 L |
7879 | } |
7880 | ||
ccd2ec6a L |
7881 | /* Initialize private output section information from input section. */ |
7882 | ||
0a1b45a2 | 7883 | bool |
ccd2ec6a L |
7884 | _bfd_elf_init_private_section_data (bfd *ibfd, |
7885 | asection *isec, | |
7886 | bfd *obfd, | |
7887 | asection *osec, | |
7888 | struct bfd_link_info *link_info) | |
7889 | ||
7890 | { | |
7891 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0a1b45a2 AM |
7892 | bool final_link = (link_info != NULL |
7893 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7894 | |
7895 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7896 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7897 | return true; |
ccd2ec6a | 7898 | |
ba85c43e NC |
7899 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7900 | ||
8c803a2d AM |
7901 | /* If this is a known ABI section, ELF section type and flags may |
7902 | have been set up when OSEC was created. For normal sections we | |
7903 | allow the user to override the type and flags other than | |
7904 | SHF_MASKOS and SHF_MASKPROC. */ | |
7905 | if (elf_section_type (osec) == SHT_PROGBITS | |
7906 | || elf_section_type (osec) == SHT_NOTE | |
7907 | || elf_section_type (osec) == SHT_NOBITS) | |
7908 | elf_section_type (osec) = SHT_NULL; | |
7909 | /* For objcopy and relocatable link, copy the ELF section type from | |
7910 | the input file if the BFD section flags are the same. (If they | |
7911 | are different the user may be doing something like | |
7912 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7913 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7914 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7915 | && (osec->flags == isec->flags |
7916 | || (final_link | |
7917 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7918 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7919 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7920 | |
7921 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7922 | elf_section_flags (osec) = (elf_section_flags (isec) |
7923 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7924 | |
a91e1603 | 7925 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7926 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7927 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7928 | elf_section_data (osec)->this_hdr.sh_info |
7929 | = elf_section_data (isec)->this_hdr.sh_info; | |
7930 | ||
ccd2ec6a L |
7931 | /* Set things up for objcopy and relocatable link. The output |
7932 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7933 | to the input group members. Ignore linker created group section. | |
7934 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7935 | if ((link_info == NULL |
7936 | || !link_info->resolve_section_groups) | |
7937 | && (elf_sec_group (isec) == NULL | |
7938 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7939 | { |
7bdf4127 AB |
7940 | if (elf_section_flags (isec) & SHF_GROUP) |
7941 | elf_section_flags (osec) |= SHF_GROUP; | |
7942 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7943 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7944 | } |
7945 | ||
7bdf4127 AB |
7946 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7947 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7948 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7949 | & SHF_COMPRESSED); | |
7950 | ||
ccd2ec6a L |
7951 | ihdr = &elf_section_data (isec)->this_hdr; |
7952 | ||
7953 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7954 | don't use the output section of the linked-to section since it | |
7955 | may be NULL at this point. */ | |
7956 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7957 | { | |
7958 | ohdr = &elf_section_data (osec)->this_hdr; | |
7959 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7960 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7961 | } | |
7962 | ||
7963 | osec->use_rela_p = isec->use_rela_p; | |
7964 | ||
0a1b45a2 | 7965 | return true; |
ccd2ec6a L |
7966 | } |
7967 | ||
252b5132 RH |
7968 | /* Copy private section information. This copies over the entsize |
7969 | field, and sometimes the info field. */ | |
7970 | ||
0a1b45a2 | 7971 | bool |
217aa764 AM |
7972 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7973 | asection *isec, | |
7974 | bfd *obfd, | |
7975 | asection *osec) | |
252b5132 RH |
7976 | { |
7977 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7978 | ||
7979 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7980 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7981 | return true; |
252b5132 | 7982 | |
252b5132 RH |
7983 | ihdr = &elf_section_data (isec)->this_hdr; |
7984 | ohdr = &elf_section_data (osec)->this_hdr; | |
7985 | ||
7986 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7987 | ||
7988 | if (ihdr->sh_type == SHT_SYMTAB | |
7989 | || ihdr->sh_type == SHT_DYNSYM | |
7990 | || ihdr->sh_type == SHT_GNU_verneed | |
7991 | || ihdr->sh_type == SHT_GNU_verdef) | |
7992 | ohdr->sh_info = ihdr->sh_info; | |
7993 | ||
ccd2ec6a L |
7994 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7995 | NULL); | |
252b5132 RH |
7996 | } |
7997 | ||
d0bf826b AM |
7998 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7999 | necessary if we are removing either the SHT_GROUP section or any of | |
8000 | the group member sections. DISCARDED is the value that a section's | |
8001 | output_section has if the section will be discarded, NULL when this | |
8002 | function is called from objcopy, bfd_abs_section_ptr when called | |
8003 | from the linker. */ | |
80fccad2 | 8004 | |
0a1b45a2 | 8005 | bool |
d0bf826b | 8006 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 8007 | { |
30288845 AM |
8008 | asection *isec; |
8009 | ||
30288845 | 8010 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 8011 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
8012 | { |
8013 | asection *first = elf_next_in_group (isec); | |
8014 | asection *s = first; | |
d0bf826b AM |
8015 | bfd_size_type removed = 0; |
8016 | ||
30288845 AM |
8017 | while (s != NULL) |
8018 | { | |
415f38a6 AM |
8019 | /* If this member section is being output but the |
8020 | SHT_GROUP section is not, then clear the group info | |
8021 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
8022 | if (s->output_section != discarded |
8023 | && isec->output_section == discarded) | |
30288845 AM |
8024 | { |
8025 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
8026 | elf_group_name (s->output_section) = NULL; | |
8027 | } | |
3349112e | 8028 | else |
6e5e9d58 AM |
8029 | { |
8030 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
3349112e L |
8031 | if (s->output_section == discarded |
8032 | && isec->output_section != discarded) | |
8033 | { | |
8034 | /* Conversely, if the member section is not being | |
8035 | output but the SHT_GROUP section is, then adjust | |
8036 | its size. */ | |
8037 | removed += 4; | |
8038 | if (elf_sec->rel.hdr != NULL | |
8039 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
8040 | removed += 4; | |
8041 | if (elf_sec->rela.hdr != NULL | |
8042 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
8043 | removed += 4; | |
8044 | } | |
8045 | else | |
8046 | { | |
8047 | /* Also adjust for zero-sized relocation member | |
8048 | section. */ | |
8049 | if (elf_sec->rel.hdr != NULL | |
8050 | && elf_sec->rel.hdr->sh_size == 0) | |
8051 | removed += 4; | |
8052 | if (elf_sec->rela.hdr != NULL | |
8053 | && elf_sec->rela.hdr->sh_size == 0) | |
8054 | removed += 4; | |
8055 | } | |
6e5e9d58 | 8056 | } |
30288845 AM |
8057 | s = elf_next_in_group (s); |
8058 | if (s == first) | |
8059 | break; | |
8060 | } | |
d0bf826b AM |
8061 | if (removed != 0) |
8062 | { | |
8063 | if (discarded != NULL) | |
8064 | { | |
8065 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 8066 | adjust the input section size. */ |
d0bf826b AM |
8067 | if (isec->rawsize == 0) |
8068 | isec->rawsize = isec->size; | |
8069 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
8070 | if (isec->size <= 4) |
8071 | { | |
8072 | isec->size = 0; | |
8073 | isec->flags |= SEC_EXCLUDE; | |
8074 | } | |
d0bf826b | 8075 | } |
182ad375 | 8076 | else if (isec->output_section != NULL) |
d0bf826b AM |
8077 | { |
8078 | /* Adjust the output section size when called from | |
8079 | objcopy. */ | |
8080 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
8081 | if (isec->output_section->size <= 4) |
8082 | { | |
8083 | isec->output_section->size = 0; | |
8084 | isec->output_section->flags |= SEC_EXCLUDE; | |
8085 | } | |
d0bf826b AM |
8086 | } |
8087 | } | |
30288845 AM |
8088 | } |
8089 | ||
0a1b45a2 | 8090 | return true; |
80fccad2 BW |
8091 | } |
8092 | ||
d0bf826b AM |
8093 | /* Copy private header information. */ |
8094 | ||
0a1b45a2 | 8095 | bool |
d0bf826b AM |
8096 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) |
8097 | { | |
8098 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8099 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8100 | return true; |
d0bf826b AM |
8101 | |
8102 | /* Copy over private BFD data if it has not already been copied. | |
8103 | This must be done here, rather than in the copy_private_bfd_data | |
8104 | entry point, because the latter is called after the section | |
8105 | contents have been set, which means that the program headers have | |
8106 | already been worked out. */ | |
12bd6957 | 8107 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
8108 | { |
8109 | if (! copy_private_bfd_data (ibfd, obfd)) | |
0a1b45a2 | 8110 | return false; |
d0bf826b AM |
8111 | } |
8112 | ||
8113 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
8114 | } | |
8115 | ||
252b5132 RH |
8116 | /* Copy private symbol information. If this symbol is in a section |
8117 | which we did not map into a BFD section, try to map the section | |
8118 | index correctly. We use special macro definitions for the mapped | |
8119 | section indices; these definitions are interpreted by the | |
8120 | swap_out_syms function. */ | |
8121 | ||
9ad5cbcf AM |
8122 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
8123 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
8124 | #define MAP_STRTAB (SHN_HIOS + 3) | |
8125 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
8126 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 8127 | |
0a1b45a2 | 8128 | bool |
217aa764 AM |
8129 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
8130 | asymbol *isymarg, | |
8131 | bfd *obfd, | |
8132 | asymbol *osymarg) | |
252b5132 RH |
8133 | { |
8134 | elf_symbol_type *isym, *osym; | |
8135 | ||
8136 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8137 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8138 | return true; |
252b5132 | 8139 | |
c1229f84 AM |
8140 | isym = elf_symbol_from (isymarg); |
8141 | osym = elf_symbol_from (osymarg); | |
252b5132 RH |
8142 | |
8143 | if (isym != NULL | |
8424d8f5 | 8144 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
8145 | && osym != NULL |
8146 | && bfd_is_abs_section (isym->symbol.section)) | |
8147 | { | |
8148 | unsigned int shndx; | |
8149 | ||
8150 | shndx = isym->internal_elf_sym.st_shndx; | |
8151 | if (shndx == elf_onesymtab (ibfd)) | |
8152 | shndx = MAP_ONESYMTAB; | |
8153 | else if (shndx == elf_dynsymtab (ibfd)) | |
8154 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 8155 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 8156 | shndx = MAP_STRTAB; |
12bd6957 | 8157 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 8158 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 8159 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 8160 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
8161 | osym->internal_elf_sym.st_shndx = shndx; |
8162 | } | |
8163 | ||
0a1b45a2 | 8164 | return true; |
252b5132 RH |
8165 | } |
8166 | ||
8167 | /* Swap out the symbols. */ | |
8168 | ||
0a1b45a2 | 8169 | static bool |
217aa764 | 8170 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8171 | struct elf_strtab_hash **sttp, |
3d16b64e NA |
8172 | int relocatable_p, |
8173 | struct bfd_link_info *info) | |
252b5132 | 8174 | { |
9c5bfbb7 | 8175 | const struct elf_backend_data *bed; |
1f4361a7 | 8176 | unsigned int symcount; |
079e9a2f | 8177 | asymbol **syms; |
ef10c3ac | 8178 | struct elf_strtab_hash *stt; |
079e9a2f | 8179 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8180 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8181 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8182 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8183 | bfd_byte *outbound_syms; |
8184 | bfd_byte *outbound_shndx; | |
ef10c3ac | 8185 | unsigned long outbound_syms_index; |
1f4361a7 | 8186 | unsigned int idx; |
12bd6957 | 8187 | unsigned int num_locals; |
1f4361a7 | 8188 | size_t amt; |
0a1b45a2 | 8189 | bool name_local_sections; |
252b5132 | 8190 | |
12bd6957 | 8191 | if (!elf_map_symbols (abfd, &num_locals)) |
0a1b45a2 | 8192 | return false; |
252b5132 | 8193 | |
c044fabd | 8194 | /* Dump out the symtabs. */ |
ef10c3ac | 8195 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8196 | if (stt == NULL) |
0a1b45a2 | 8197 | return false; |
252b5132 | 8198 | |
079e9a2f AM |
8199 | bed = get_elf_backend_data (abfd); |
8200 | symcount = bfd_get_symcount (abfd); | |
8201 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8202 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8203 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8204 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8205 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8206 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8207 | |
8208 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8209 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8210 | ||
ef10c3ac | 8211 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8212 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8213 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8214 | { |
1f4361a7 | 8215 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac | 8216 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8217 | return false; |
ef10c3ac L |
8218 | } |
8219 | ||
1f4361a7 AM |
8220 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8221 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8222 | { |
1f4361a7 AM |
8223 | error_no_mem: |
8224 | bfd_set_error (bfd_error_no_memory); | |
8225 | error_return: | |
ef10c3ac | 8226 | free (symstrtab); |
1f4361a7 | 8227 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8228 | return false; |
5ed6aba4 | 8229 | } |
217aa764 | 8230 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8231 | outbound_syms_index = 0; |
252b5132 | 8232 | |
9ad5cbcf | 8233 | outbound_shndx = NULL; |
6a40cf0c NC |
8234 | |
8235 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8236 | { |
6a40cf0c NC |
8237 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8238 | if (symtab_shndx_hdr->sh_name != 0) | |
8239 | { | |
1f4361a7 AM |
8240 | if (_bfd_mul_overflow (symcount + 1, |
8241 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8242 | goto error_no_mem; | |
8243 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8244 | if (outbound_shndx == NULL) |
8245 | goto error_return; | |
5ed6aba4 | 8246 | |
6a40cf0c NC |
8247 | symtab_shndx_hdr->contents = outbound_shndx; |
8248 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8249 | symtab_shndx_hdr->sh_size = amt; | |
8250 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8251 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8252 | } | |
8253 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8254 | } |
8255 | ||
589e6347 | 8256 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8257 | { |
8258 | /* Fill in zeroth symbol and swap it out. */ | |
8259 | Elf_Internal_Sym sym; | |
8260 | sym.st_name = 0; | |
8261 | sym.st_value = 0; | |
8262 | sym.st_size = 0; | |
8263 | sym.st_info = 0; | |
8264 | sym.st_other = 0; | |
8265 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8266 | sym.st_target_internal = 0; |
ef10c3ac L |
8267 | symstrtab[0].sym = sym; |
8268 | symstrtab[0].dest_index = outbound_syms_index; | |
ef10c3ac | 8269 | outbound_syms_index++; |
079e9a2f | 8270 | } |
252b5132 | 8271 | |
174fd7f9 RS |
8272 | name_local_sections |
8273 | = (bed->elf_backend_name_local_section_symbols | |
8274 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8275 | ||
079e9a2f | 8276 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8277 | for (idx = 0; idx < symcount;) |
252b5132 | 8278 | { |
252b5132 | 8279 | Elf_Internal_Sym sym; |
079e9a2f AM |
8280 | bfd_vma value = syms[idx]->value; |
8281 | elf_symbol_type *type_ptr; | |
8282 | flagword flags = syms[idx]->flags; | |
8283 | int type; | |
252b5132 | 8284 | |
174fd7f9 RS |
8285 | if (!name_local_sections |
8286 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8287 | { |
8288 | /* Local section symbols have no name. */ | |
ef10c3ac | 8289 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8290 | } |
8291 | else | |
8292 | { | |
ef10c3ac L |
8293 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8294 | to get the final offset for st_name. */ | |
8295 | sym.st_name | |
8296 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
0a1b45a2 | 8297 | false); |
079e9a2f | 8298 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8299 | goto error_return; |
079e9a2f | 8300 | } |
252b5132 | 8301 | |
c1229f84 | 8302 | type_ptr = elf_symbol_from (syms[idx]); |
252b5132 | 8303 | |
079e9a2f AM |
8304 | if ((flags & BSF_SECTION_SYM) == 0 |
8305 | && bfd_is_com_section (syms[idx]->section)) | |
8306 | { | |
8307 | /* ELF common symbols put the alignment into the `value' field, | |
8308 | and the size into the `size' field. This is backwards from | |
8309 | how BFD handles it, so reverse it here. */ | |
8310 | sym.st_size = value; | |
8311 | if (type_ptr == NULL | |
8312 | || type_ptr->internal_elf_sym.st_value == 0) | |
8313 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8314 | else | |
8315 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8316 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8317 | (abfd, syms[idx]->section); | |
8318 | } | |
8319 | else | |
8320 | { | |
8321 | asection *sec = syms[idx]->section; | |
cb33740c | 8322 | unsigned int shndx; |
252b5132 | 8323 | |
079e9a2f AM |
8324 | if (sec->output_section) |
8325 | { | |
8326 | value += sec->output_offset; | |
8327 | sec = sec->output_section; | |
8328 | } | |
589e6347 | 8329 | |
079e9a2f AM |
8330 | /* Don't add in the section vma for relocatable output. */ |
8331 | if (! relocatable_p) | |
8332 | value += sec->vma; | |
8333 | sym.st_value = value; | |
8334 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8335 | ||
8336 | if (bfd_is_abs_section (sec) | |
8337 | && type_ptr != NULL | |
8338 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8339 | { | |
8340 | /* This symbol is in a real ELF section which we did | |
8341 | not create as a BFD section. Undo the mapping done | |
8342 | by copy_private_symbol_data. */ | |
8343 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8344 | switch (shndx) | |
8345 | { | |
8346 | case MAP_ONESYMTAB: | |
8347 | shndx = elf_onesymtab (abfd); | |
8348 | break; | |
8349 | case MAP_DYNSYMTAB: | |
8350 | shndx = elf_dynsymtab (abfd); | |
8351 | break; | |
8352 | case MAP_STRTAB: | |
12bd6957 | 8353 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8354 | break; |
8355 | case MAP_SHSTRTAB: | |
12bd6957 | 8356 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8357 | break; |
9ad5cbcf | 8358 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8359 | if (elf_symtab_shndx_list (abfd)) |
8360 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8361 | break; |
00e49dff NC |
8362 | case SHN_COMMON: |
8363 | case SHN_ABS: | |
15bc576a | 8364 | shndx = SHN_ABS; |
079e9a2f | 8365 | break; |
00e49dff NC |
8366 | default: |
8367 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8368 | { | |
8369 | if (bed->symbol_section_index) | |
8370 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8371 | /* Otherwise just leave the index alone. */ | |
8372 | } | |
8373 | else | |
8374 | { | |
8375 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8376 | _bfd_error_handler (_("%pB: \ | |
8377 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8378 | abfd, shndx); | |
8379 | shndx = SHN_ABS; | |
8380 | } | |
8381 | break; | |
079e9a2f AM |
8382 | } |
8383 | } | |
8384 | else | |
8385 | { | |
8386 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8387 | |
cb33740c | 8388 | if (shndx == SHN_BAD) |
079e9a2f AM |
8389 | { |
8390 | asection *sec2; | |
8391 | ||
8392 | /* Writing this would be a hell of a lot easier if | |
8393 | we had some decent documentation on bfd, and | |
8394 | knew what to expect of the library, and what to | |
8395 | demand of applications. For example, it | |
8396 | appears that `objcopy' might not set the | |
8397 | section of a symbol to be a section that is | |
8398 | actually in the output file. */ | |
8399 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8400 | if (sec2 != NULL) |
8401 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8402 | if (shndx == SHN_BAD) | |
589e6347 | 8403 | { |
695344c0 | 8404 | /* xgettext:c-format */ |
9793eb77 AM |
8405 | _bfd_error_handler |
8406 | (_("unable to find equivalent output section" | |
8407 | " for symbol '%s' from section '%s'"), | |
8408 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8409 | sec->name); | |
811072d8 | 8410 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8411 | goto error_return; |
589e6347 | 8412 | } |
079e9a2f AM |
8413 | } |
8414 | } | |
252b5132 | 8415 | |
079e9a2f AM |
8416 | sym.st_shndx = shndx; |
8417 | } | |
252b5132 | 8418 | |
13ae64f3 JJ |
8419 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8420 | type = STT_TLS; | |
d8045f23 NC |
8421 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8422 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8423 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8424 | type = STT_FUNC; |
8425 | else if ((flags & BSF_OBJECT) != 0) | |
8426 | type = STT_OBJECT; | |
d9352518 DB |
8427 | else if ((flags & BSF_RELC) != 0) |
8428 | type = STT_RELC; | |
8429 | else if ((flags & BSF_SRELC) != 0) | |
8430 | type = STT_SRELC; | |
079e9a2f AM |
8431 | else |
8432 | type = STT_NOTYPE; | |
252b5132 | 8433 | |
13ae64f3 JJ |
8434 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8435 | type = STT_TLS; | |
8436 | ||
589e6347 | 8437 | /* Processor-specific types. */ |
079e9a2f AM |
8438 | if (type_ptr != NULL |
8439 | && bed->elf_backend_get_symbol_type) | |
8440 | type = ((*bed->elf_backend_get_symbol_type) | |
8441 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8442 | |
079e9a2f AM |
8443 | if (flags & BSF_SECTION_SYM) |
8444 | { | |
8445 | if (flags & BSF_GLOBAL) | |
8446 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8447 | else | |
8448 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8449 | } | |
8450 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8451 | { |
b8871f35 L |
8452 | if (type != STT_TLS) |
8453 | { | |
8454 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8455 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8456 | ? STT_COMMON : STT_OBJECT); | |
8457 | else | |
8458 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8459 | ? STT_COMMON : STT_OBJECT); | |
8460 | } | |
8461 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8462 | } |
079e9a2f AM |
8463 | else if (bfd_is_und_section (syms[idx]->section)) |
8464 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8465 | ? STB_WEAK | |
8466 | : STB_GLOBAL), | |
8467 | type); | |
8468 | else if (flags & BSF_FILE) | |
8469 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8470 | else | |
8471 | { | |
8472 | int bind = STB_LOCAL; | |
252b5132 | 8473 | |
079e9a2f AM |
8474 | if (flags & BSF_LOCAL) |
8475 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8476 | else if (flags & BSF_GNU_UNIQUE) |
8477 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8478 | else if (flags & BSF_WEAK) |
8479 | bind = STB_WEAK; | |
8480 | else if (flags & BSF_GLOBAL) | |
8481 | bind = STB_GLOBAL; | |
252b5132 | 8482 | |
079e9a2f AM |
8483 | sym.st_info = ELF_ST_INFO (bind, type); |
8484 | } | |
252b5132 | 8485 | |
079e9a2f | 8486 | if (type_ptr != NULL) |
35fc36a8 RS |
8487 | { |
8488 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8489 | sym.st_target_internal | |
8490 | = type_ptr->internal_elf_sym.st_target_internal; | |
8491 | } | |
079e9a2f | 8492 | else |
35fc36a8 RS |
8493 | { |
8494 | sym.st_other = 0; | |
8495 | sym.st_target_internal = 0; | |
8496 | } | |
252b5132 | 8497 | |
ef10c3ac L |
8498 | idx++; |
8499 | symstrtab[idx].sym = sym; | |
8500 | symstrtab[idx].dest_index = outbound_syms_index; | |
ef10c3ac L |
8501 | |
8502 | outbound_syms_index++; | |
ef10c3ac L |
8503 | } |
8504 | ||
8505 | /* Finalize the .strtab section. */ | |
8506 | _bfd_elf_strtab_finalize (stt); | |
8507 | ||
8508 | /* Swap out the .strtab section. */ | |
8509 | for (idx = 0; idx <= symcount; idx++) | |
8510 | { | |
8511 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8512 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8513 | elfsym->sym.st_name = 0; | |
8514 | else | |
8515 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8516 | elfsym->sym.st_name); | |
3d16b64e NA |
8517 | if (info && info->callbacks->ctf_new_symbol) |
8518 | info->callbacks->ctf_new_symbol (elfsym->dest_index, | |
8519 | &elfsym->sym); | |
8520 | ||
8521 | /* Inform the linker of the addition of this symbol. */ | |
8522 | ||
ef10c3ac L |
8523 | bed->s->swap_symbol_out (abfd, &elfsym->sym, |
8524 | (outbound_syms | |
8525 | + (elfsym->dest_index | |
8526 | * bed->s->sizeof_sym)), | |
b03b65e2 AM |
8527 | NPTR_ADD (outbound_shndx, |
8528 | (elfsym->dest_index | |
8529 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8530 | } |
ef10c3ac | 8531 | free (symstrtab); |
252b5132 | 8532 | |
079e9a2f | 8533 | *sttp = stt; |
ef10c3ac | 8534 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8535 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8536 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8537 | symstrtab_hdr->sh_addr = 0; |
8538 | symstrtab_hdr->sh_entsize = 0; | |
8539 | symstrtab_hdr->sh_link = 0; | |
8540 | symstrtab_hdr->sh_info = 0; | |
8541 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8542 | |
0a1b45a2 | 8543 | return true; |
252b5132 RH |
8544 | } |
8545 | ||
8546 | /* Return the number of bytes required to hold the symtab vector. | |
8547 | ||
8548 | Note that we base it on the count plus 1, since we will null terminate | |
8549 | the vector allocated based on this size. However, the ELF symbol table | |
8550 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8551 | ||
8552 | long | |
217aa764 | 8553 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8554 | { |
3a551c7a | 8555 | bfd_size_type symcount; |
252b5132 RH |
8556 | long symtab_size; |
8557 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8558 | ||
8559 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8560 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8561 | { |
8562 | bfd_set_error (bfd_error_file_too_big); | |
8563 | return -1; | |
8564 | } | |
b5f386d5 AM |
8565 | symtab_size = symcount * (sizeof (asymbol *)); |
8566 | if (symcount == 0) | |
8567 | symtab_size = sizeof (asymbol *); | |
8568 | else if (!bfd_write_p (abfd)) | |
8569 | { | |
8570 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8571 | ||
8572 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8573 | { | |
8574 | bfd_set_error (bfd_error_file_truncated); | |
8575 | return -1; | |
8576 | } | |
8577 | } | |
252b5132 RH |
8578 | |
8579 | return symtab_size; | |
8580 | } | |
8581 | ||
8582 | long | |
217aa764 | 8583 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8584 | { |
3a551c7a | 8585 | bfd_size_type symcount; |
252b5132 RH |
8586 | long symtab_size; |
8587 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8588 | ||
8589 | if (elf_dynsymtab (abfd) == 0) | |
8590 | { | |
8591 | bfd_set_error (bfd_error_invalid_operation); | |
8592 | return -1; | |
8593 | } | |
8594 | ||
8595 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8596 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8597 | { |
8598 | bfd_set_error (bfd_error_file_too_big); | |
8599 | return -1; | |
8600 | } | |
b5f386d5 AM |
8601 | symtab_size = symcount * (sizeof (asymbol *)); |
8602 | if (symcount == 0) | |
8603 | symtab_size = sizeof (asymbol *); | |
8604 | else if (!bfd_write_p (abfd)) | |
8605 | { | |
8606 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8607 | ||
8608 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8609 | { | |
8610 | bfd_set_error (bfd_error_file_truncated); | |
8611 | return -1; | |
8612 | } | |
8613 | } | |
252b5132 RH |
8614 | |
8615 | return symtab_size; | |
8616 | } | |
8617 | ||
8618 | long | |
3c568b8a | 8619 | _bfd_elf_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 8620 | { |
b5f386d5 | 8621 | if (asect->reloc_count != 0 && !bfd_write_p (abfd)) |
3c568b8a AM |
8622 | { |
8623 | /* Sanity check reloc section size. */ | |
8624 | struct bfd_elf_section_data *d = elf_section_data (asect); | |
8625 | Elf_Internal_Shdr *rel_hdr = &d->this_hdr; | |
8626 | bfd_size_type ext_rel_size = rel_hdr->sh_size; | |
8627 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8628 | ||
8629 | if (filesize != 0 && ext_rel_size > filesize) | |
8630 | { | |
8631 | bfd_set_error (bfd_error_file_truncated); | |
8632 | return -1; | |
8633 | } | |
8634 | } | |
8635 | ||
242a1159 | 8636 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8637 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8638 | { | |
8639 | bfd_set_error (bfd_error_file_too_big); | |
8640 | return -1; | |
8641 | } | |
242a1159 | 8642 | #endif |
5cfe19e5 | 8643 | return (asect->reloc_count + 1L) * sizeof (arelent *); |
252b5132 RH |
8644 | } |
8645 | ||
8646 | /* Canonicalize the relocs. */ | |
8647 | ||
8648 | long | |
217aa764 AM |
8649 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8650 | sec_ptr section, | |
8651 | arelent **relptr, | |
8652 | asymbol **symbols) | |
252b5132 RH |
8653 | { |
8654 | arelent *tblptr; | |
8655 | unsigned int i; | |
9c5bfbb7 | 8656 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8657 | |
0a1b45a2 | 8658 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, false)) |
252b5132 RH |
8659 | return -1; |
8660 | ||
8661 | tblptr = section->relocation; | |
8662 | for (i = 0; i < section->reloc_count; i++) | |
8663 | *relptr++ = tblptr++; | |
8664 | ||
8665 | *relptr = NULL; | |
8666 | ||
8667 | return section->reloc_count; | |
8668 | } | |
8669 | ||
8670 | long | |
6cee3f79 | 8671 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8672 | { |
9c5bfbb7 | 8673 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8674 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, false); |
252b5132 RH |
8675 | |
8676 | if (symcount >= 0) | |
ed48ec2e | 8677 | abfd->symcount = symcount; |
252b5132 RH |
8678 | return symcount; |
8679 | } | |
8680 | ||
8681 | long | |
217aa764 AM |
8682 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8683 | asymbol **allocation) | |
252b5132 | 8684 | { |
9c5bfbb7 | 8685 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8686 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, true); |
1f70368c DJ |
8687 | |
8688 | if (symcount >= 0) | |
ed48ec2e | 8689 | abfd->dynsymcount = symcount; |
1f70368c | 8690 | return symcount; |
252b5132 RH |
8691 | } |
8692 | ||
8615f3f2 AM |
8693 | /* Return the size required for the dynamic reloc entries. Any loadable |
8694 | section that was actually installed in the BFD, and has type SHT_REL | |
8695 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8696 | dynamic reloc section. */ | |
252b5132 RH |
8697 | |
8698 | long | |
217aa764 | 8699 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8700 | { |
3c568b8a | 8701 | bfd_size_type count, ext_rel_size; |
252b5132 RH |
8702 | asection *s; |
8703 | ||
8704 | if (elf_dynsymtab (abfd) == 0) | |
8705 | { | |
8706 | bfd_set_error (bfd_error_invalid_operation); | |
8707 | return -1; | |
8708 | } | |
8709 | ||
3a551c7a | 8710 | count = 1; |
3c568b8a | 8711 | ext_rel_size = 0; |
252b5132 | 8712 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8713 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8714 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8715 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a | 8716 | { |
3c568b8a AM |
8717 | ext_rel_size += s->size; |
8718 | if (ext_rel_size < s->size) | |
8719 | { | |
8720 | bfd_set_error (bfd_error_file_truncated); | |
8721 | return -1; | |
8722 | } | |
3a551c7a AM |
8723 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; |
8724 | if (count > LONG_MAX / sizeof (arelent *)) | |
8725 | { | |
8726 | bfd_set_error (bfd_error_file_too_big); | |
8727 | return -1; | |
8728 | } | |
8729 | } | |
b5f386d5 | 8730 | if (count > 1 && !bfd_write_p (abfd)) |
3c568b8a AM |
8731 | { |
8732 | /* Sanity check reloc section sizes. */ | |
8733 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8734 | if (filesize != 0 && ext_rel_size > filesize) | |
8735 | { | |
8736 | bfd_set_error (bfd_error_file_truncated); | |
8737 | return -1; | |
8738 | } | |
8739 | } | |
3a551c7a | 8740 | return count * sizeof (arelent *); |
252b5132 RH |
8741 | } |
8742 | ||
8615f3f2 AM |
8743 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8744 | dynamic relocations as a single block, although they are actually | |
8745 | associated with particular sections; the interface, which was | |
8746 | designed for SunOS style shared libraries, expects that there is only | |
8747 | one set of dynamic relocs. Any loadable section that was actually | |
8748 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8749 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8750 | |
8751 | long | |
217aa764 AM |
8752 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8753 | arelent **storage, | |
8754 | asymbol **syms) | |
252b5132 | 8755 | { |
0a1b45a2 | 8756 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
252b5132 RH |
8757 | asection *s; |
8758 | long ret; | |
8759 | ||
8760 | if (elf_dynsymtab (abfd) == 0) | |
8761 | { | |
8762 | bfd_set_error (bfd_error_invalid_operation); | |
8763 | return -1; | |
8764 | } | |
8765 | ||
8766 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8767 | ret = 0; | |
8768 | for (s = abfd->sections; s != NULL; s = s->next) | |
8769 | { | |
266b05cf | 8770 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8771 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8772 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8773 | { | |
8774 | arelent *p; | |
8775 | long count, i; | |
8776 | ||
0a1b45a2 | 8777 | if (! (*slurp_relocs) (abfd, s, syms, true)) |
252b5132 | 8778 | return -1; |
eea6121a | 8779 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8780 | p = s->relocation; |
8781 | for (i = 0; i < count; i++) | |
8782 | *storage++ = p++; | |
8783 | ret += count; | |
8784 | } | |
8785 | } | |
8786 | ||
8787 | *storage = NULL; | |
8788 | ||
8789 | return ret; | |
8790 | } | |
8791 | \f | |
8792 | /* Read in the version information. */ | |
8793 | ||
0a1b45a2 AM |
8794 | bool |
8795 | _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver) | |
252b5132 RH |
8796 | { |
8797 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8798 | unsigned int freeidx = 0; |
1f4361a7 | 8799 | size_t amt; |
fc0e6df6 PB |
8800 | |
8801 | if (elf_dynverref (abfd) != 0) | |
8802 | { | |
8803 | Elf_Internal_Shdr *hdr; | |
8804 | Elf_External_Verneed *everneed; | |
8805 | Elf_Internal_Verneed *iverneed; | |
8806 | unsigned int i; | |
d0fb9a8d | 8807 | bfd_byte *contents_end; |
fc0e6df6 PB |
8808 | |
8809 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8810 | ||
bd61e135 AM |
8811 | if (hdr->sh_info == 0 |
8812 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8813 | { |
dc1e8a47 | 8814 | error_return_bad_verref: |
4eca0228 | 8815 | _bfd_error_handler |
871b3ab2 | 8816 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8817 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8818 | error_return_verref: |
d0fb9a8d JJ |
8819 | elf_tdata (abfd)->verref = NULL; |
8820 | elf_tdata (abfd)->cverrefs = 0; | |
8821 | goto error_return; | |
8822 | } | |
601a03ba | 8823 | |
2bb3687b AM |
8824 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8825 | goto error_return_verref; | |
8826 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8827 | if (contents == NULL) | |
d0fb9a8d | 8828 | goto error_return_verref; |
fc0e6df6 | 8829 | |
1f4361a7 AM |
8830 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8831 | { | |
8832 | bfd_set_error (bfd_error_file_too_big); | |
8833 | goto error_return_verref; | |
8834 | } | |
8835 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8836 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8837 | goto error_return_verref; |
8838 | ||
8839 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8840 | == sizeof (Elf_External_Vernaux)); | |
8841 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8842 | everneed = (Elf_External_Verneed *) contents; |
8843 | iverneed = elf_tdata (abfd)->verref; | |
8844 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8845 | { | |
8846 | Elf_External_Vernaux *evernaux; | |
8847 | Elf_Internal_Vernaux *ivernaux; | |
8848 | unsigned int j; | |
8849 | ||
8850 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8851 | ||
8852 | iverneed->vn_bfd = abfd; | |
8853 | ||
8854 | iverneed->vn_filename = | |
8855 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8856 | iverneed->vn_file); | |
8857 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8858 | goto error_return_bad_verref; |
fc0e6df6 | 8859 | |
d0fb9a8d JJ |
8860 | if (iverneed->vn_cnt == 0) |
8861 | iverneed->vn_auxptr = NULL; | |
8862 | else | |
8863 | { | |
1f4361a7 AM |
8864 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8865 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8866 | { | |
8867 | bfd_set_error (bfd_error_file_too_big); | |
8868 | goto error_return_verref; | |
8869 | } | |
a50b1753 | 8870 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8871 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8872 | if (iverneed->vn_auxptr == NULL) |
8873 | goto error_return_verref; | |
8874 | } | |
8875 | ||
8876 | if (iverneed->vn_aux | |
8877 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8878 | goto error_return_bad_verref; |
fc0e6df6 PB |
8879 | |
8880 | evernaux = ((Elf_External_Vernaux *) | |
8881 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8882 | ivernaux = iverneed->vn_auxptr; | |
8883 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8884 | { | |
8885 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8886 | ||
8887 | ivernaux->vna_nodename = | |
8888 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8889 | ivernaux->vna_name); | |
8890 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8891 | goto error_return_bad_verref; |
fc0e6df6 | 8892 | |
25ff461f AM |
8893 | if (ivernaux->vna_other > freeidx) |
8894 | freeidx = ivernaux->vna_other; | |
8895 | ||
8896 | ivernaux->vna_nextptr = NULL; | |
8897 | if (ivernaux->vna_next == 0) | |
8898 | { | |
8899 | iverneed->vn_cnt = j + 1; | |
8900 | break; | |
8901 | } | |
fc0e6df6 PB |
8902 | if (j + 1 < iverneed->vn_cnt) |
8903 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8904 | |
d0fb9a8d JJ |
8905 | if (ivernaux->vna_next |
8906 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8907 | goto error_return_bad_verref; |
d0fb9a8d | 8908 | |
fc0e6df6 PB |
8909 | evernaux = ((Elf_External_Vernaux *) |
8910 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8911 | } |
8912 | ||
25ff461f AM |
8913 | iverneed->vn_nextref = NULL; |
8914 | if (iverneed->vn_next == 0) | |
8915 | break; | |
fc0e6df6 PB |
8916 | if (i + 1 < hdr->sh_info) |
8917 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8918 | |
d0fb9a8d JJ |
8919 | if (iverneed->vn_next |
8920 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8921 | goto error_return_bad_verref; |
d0fb9a8d | 8922 | |
fc0e6df6 PB |
8923 | everneed = ((Elf_External_Verneed *) |
8924 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8925 | } | |
25ff461f | 8926 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8927 | |
8928 | free (contents); | |
8929 | contents = NULL; | |
8930 | } | |
252b5132 RH |
8931 | |
8932 | if (elf_dynverdef (abfd) != 0) | |
8933 | { | |
8934 | Elf_Internal_Shdr *hdr; | |
8935 | Elf_External_Verdef *everdef; | |
8936 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8937 | Elf_Internal_Verdef *iverdefarr; |
8938 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8939 | unsigned int i; |
062e2358 | 8940 | unsigned int maxidx; |
d0fb9a8d | 8941 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8942 | |
8943 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8944 | ||
601a03ba AM |
8945 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8946 | { | |
8947 | error_return_bad_verdef: | |
4eca0228 | 8948 | _bfd_error_handler |
871b3ab2 | 8949 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8950 | bfd_set_error (bfd_error_bad_value); |
8951 | error_return_verdef: | |
8952 | elf_tdata (abfd)->verdef = NULL; | |
8953 | elf_tdata (abfd)->cverdefs = 0; | |
8954 | goto error_return; | |
8955 | } | |
8956 | ||
2bb3687b | 8957 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8958 | goto error_return_verdef; |
2bb3687b AM |
8959 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8960 | if (contents == NULL) | |
601a03ba | 8961 | goto error_return_verdef; |
d0fb9a8d JJ |
8962 | |
8963 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8964 | >= sizeof (Elf_External_Verdaux)); | |
8965 | contents_end_def = contents + hdr->sh_size | |
8966 | - sizeof (Elf_External_Verdef); | |
8967 | contents_end_aux = contents + hdr->sh_size | |
8968 | - sizeof (Elf_External_Verdaux); | |
8969 | ||
f631889e UD |
8970 | /* We know the number of entries in the section but not the maximum |
8971 | index. Therefore we have to run through all entries and find | |
8972 | the maximum. */ | |
252b5132 | 8973 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8974 | maxidx = 0; |
8975 | for (i = 0; i < hdr->sh_info; ++i) | |
8976 | { | |
8977 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8978 | ||
601a03ba AM |
8979 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8980 | goto error_return_bad_verdef; | |
062e2358 AM |
8981 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8982 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8983 | |
25ff461f AM |
8984 | if (iverdefmem.vd_next == 0) |
8985 | break; | |
8986 | ||
d0fb9a8d JJ |
8987 | if (iverdefmem.vd_next |
8988 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8989 | goto error_return_bad_verdef; |
d0fb9a8d | 8990 | |
f631889e UD |
8991 | everdef = ((Elf_External_Verdef *) |
8992 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8993 | } | |
8994 | ||
fc0e6df6 PB |
8995 | if (default_imported_symver) |
8996 | { | |
8997 | if (freeidx > maxidx) | |
8998 | maxidx = ++freeidx; | |
8999 | else | |
9000 | freeidx = ++maxidx; | |
9001 | } | |
1f4361a7 AM |
9002 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
9003 | { | |
9004 | bfd_set_error (bfd_error_file_too_big); | |
9005 | goto error_return_verdef; | |
9006 | } | |
9007 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 9008 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 9009 | goto error_return_verdef; |
f631889e UD |
9010 | |
9011 | elf_tdata (abfd)->cverdefs = maxidx; | |
9012 | ||
9013 | everdef = (Elf_External_Verdef *) contents; | |
9014 | iverdefarr = elf_tdata (abfd)->verdef; | |
9015 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
9016 | { |
9017 | Elf_External_Verdaux *everdaux; | |
9018 | Elf_Internal_Verdaux *iverdaux; | |
9019 | unsigned int j; | |
9020 | ||
f631889e UD |
9021 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
9022 | ||
d0fb9a8d | 9023 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 9024 | goto error_return_bad_verdef; |
d0fb9a8d | 9025 | |
f631889e | 9026 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 9027 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
9028 | |
9029 | iverdef->vd_bfd = abfd; | |
9030 | ||
d0fb9a8d JJ |
9031 | if (iverdef->vd_cnt == 0) |
9032 | iverdef->vd_auxptr = NULL; | |
9033 | else | |
9034 | { | |
1f4361a7 AM |
9035 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
9036 | sizeof (Elf_Internal_Verdaux), &amt)) | |
9037 | { | |
9038 | bfd_set_error (bfd_error_file_too_big); | |
9039 | goto error_return_verdef; | |
9040 | } | |
a50b1753 | 9041 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 9042 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
9043 | if (iverdef->vd_auxptr == NULL) |
9044 | goto error_return_verdef; | |
9045 | } | |
9046 | ||
9047 | if (iverdef->vd_aux | |
9048 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 9049 | goto error_return_bad_verdef; |
252b5132 RH |
9050 | |
9051 | everdaux = ((Elf_External_Verdaux *) | |
9052 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
9053 | iverdaux = iverdef->vd_auxptr; | |
9054 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
9055 | { | |
9056 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
9057 | ||
9058 | iverdaux->vda_nodename = | |
9059 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
9060 | iverdaux->vda_name); | |
9061 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 9062 | goto error_return_bad_verdef; |
252b5132 | 9063 | |
25ff461f AM |
9064 | iverdaux->vda_nextptr = NULL; |
9065 | if (iverdaux->vda_next == 0) | |
9066 | { | |
9067 | iverdef->vd_cnt = j + 1; | |
9068 | break; | |
9069 | } | |
252b5132 RH |
9070 | if (j + 1 < iverdef->vd_cnt) |
9071 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 9072 | |
d0fb9a8d JJ |
9073 | if (iverdaux->vda_next |
9074 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 9075 | goto error_return_bad_verdef; |
d0fb9a8d | 9076 | |
252b5132 RH |
9077 | everdaux = ((Elf_External_Verdaux *) |
9078 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
9079 | } | |
9080 | ||
595bce75 | 9081 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
9082 | if (iverdef->vd_cnt) |
9083 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 9084 | |
25ff461f AM |
9085 | iverdef->vd_nextdef = NULL; |
9086 | if (iverdef->vd_next == 0) | |
9087 | break; | |
d0fb9a8d | 9088 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 9089 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
9090 | |
9091 | everdef = ((Elf_External_Verdef *) | |
9092 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
9093 | } | |
9094 | ||
9095 | free (contents); | |
9096 | contents = NULL; | |
9097 | } | |
fc0e6df6 | 9098 | else if (default_imported_symver) |
252b5132 | 9099 | { |
fc0e6df6 PB |
9100 | if (freeidx < 3) |
9101 | freeidx = 3; | |
9102 | else | |
9103 | freeidx++; | |
252b5132 | 9104 | |
1f4361a7 AM |
9105 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
9106 | { | |
9107 | bfd_set_error (bfd_error_file_too_big); | |
9108 | goto error_return; | |
9109 | } | |
9110 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 9111 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
9112 | goto error_return; |
9113 | ||
fc0e6df6 PB |
9114 | elf_tdata (abfd)->cverdefs = freeidx; |
9115 | } | |
252b5132 | 9116 | |
fc0e6df6 PB |
9117 | /* Create a default version based on the soname. */ |
9118 | if (default_imported_symver) | |
9119 | { | |
9120 | Elf_Internal_Verdef *iverdef; | |
9121 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 9122 | |
5bb3703f | 9123 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 9124 | |
fc0e6df6 PB |
9125 | iverdef->vd_version = VER_DEF_CURRENT; |
9126 | iverdef->vd_flags = 0; | |
9127 | iverdef->vd_ndx = freeidx; | |
9128 | iverdef->vd_cnt = 1; | |
252b5132 | 9129 | |
fc0e6df6 | 9130 | iverdef->vd_bfd = abfd; |
252b5132 | 9131 | |
fc0e6df6 PB |
9132 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
9133 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 9134 | goto error_return_verdef; |
fc0e6df6 | 9135 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
9136 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
9137 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
9138 | if (iverdef->vd_auxptr == NULL) |
9139 | goto error_return_verdef; | |
252b5132 | 9140 | |
fc0e6df6 PB |
9141 | iverdaux = iverdef->vd_auxptr; |
9142 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
9143 | } |
9144 | ||
0a1b45a2 | 9145 | return true; |
252b5132 RH |
9146 | |
9147 | error_return: | |
c9594989 | 9148 | free (contents); |
0a1b45a2 | 9149 | return false; |
252b5132 RH |
9150 | } |
9151 | \f | |
9152 | asymbol * | |
217aa764 | 9153 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
9154 | { |
9155 | elf_symbol_type *newsym; | |
9156 | ||
7a6e0d89 | 9157 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
9158 | if (!newsym) |
9159 | return NULL; | |
201159ec NC |
9160 | newsym->symbol.the_bfd = abfd; |
9161 | return &newsym->symbol; | |
252b5132 RH |
9162 | } |
9163 | ||
9164 | void | |
217aa764 AM |
9165 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
9166 | asymbol *symbol, | |
9167 | symbol_info *ret) | |
252b5132 RH |
9168 | { |
9169 | bfd_symbol_info (symbol, ret); | |
9170 | } | |
9171 | ||
9172 | /* Return whether a symbol name implies a local symbol. Most targets | |
9173 | use this function for the is_local_label_name entry point, but some | |
9174 | override it. */ | |
9175 | ||
0a1b45a2 | 9176 | bool |
217aa764 AM |
9177 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
9178 | const char *name) | |
252b5132 RH |
9179 | { |
9180 | /* Normal local symbols start with ``.L''. */ | |
9181 | if (name[0] == '.' && name[1] == 'L') | |
0a1b45a2 | 9182 | return true; |
252b5132 RH |
9183 | |
9184 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
9185 | DWARF debugging symbols starting with ``..''. */ | |
9186 | if (name[0] == '.' && name[1] == '.') | |
0a1b45a2 | 9187 | return true; |
252b5132 RH |
9188 | |
9189 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
9190 | emitting DWARF debugging output. I suspect this is actually a | |
9191 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
9192 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
9193 | underscore to be emitted on some ELF targets). For ease of use, | |
9194 | we treat such symbols as local. */ | |
9195 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
0a1b45a2 | 9196 | return true; |
252b5132 | 9197 | |
b1fa9dd6 NC |
9198 | /* Treat assembler generated fake symbols, dollar local labels and |
9199 | forward-backward labels (aka local labels) as locals. | |
9200 | These labels have the form: | |
9201 | ||
07d6d2b8 | 9202 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
9203 | |
9204 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
9205 | ||
9206 | Versions which start with .L will have already been matched above, | |
9207 | so we only need to match the rest. */ | |
9208 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
9209 | { | |
0a1b45a2 | 9210 | bool ret = false; |
b1fa9dd6 NC |
9211 | const char * p; |
9212 | char c; | |
9213 | ||
9214 | for (p = name + 2; (c = *p); p++) | |
9215 | { | |
9216 | if (c == 1 || c == 2) | |
9217 | { | |
9218 | if (c == 1 && p == name + 2) | |
9219 | /* A fake symbol. */ | |
0a1b45a2 | 9220 | return true; |
b1fa9dd6 NC |
9221 | |
9222 | /* FIXME: We are being paranoid here and treating symbols like | |
9223 | L0^Bfoo as if there were non-local, on the grounds that the | |
9224 | assembler will never generate them. But can any symbol | |
9225 | containing an ASCII value in the range 1-31 ever be anything | |
9226 | other than some kind of local ? */ | |
0a1b45a2 | 9227 | ret = true; |
b1fa9dd6 NC |
9228 | } |
9229 | ||
9230 | if (! ISDIGIT (c)) | |
9231 | { | |
0a1b45a2 | 9232 | ret = false; |
b1fa9dd6 NC |
9233 | break; |
9234 | } | |
9235 | } | |
9236 | return ret; | |
9237 | } | |
ffa54770 | 9238 | |
0a1b45a2 | 9239 | return false; |
252b5132 RH |
9240 | } |
9241 | ||
9242 | alent * | |
217aa764 AM |
9243 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9244 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9245 | { |
9246 | abort (); | |
9247 | return NULL; | |
9248 | } | |
9249 | ||
0a1b45a2 | 9250 | bool |
217aa764 AM |
9251 | _bfd_elf_set_arch_mach (bfd *abfd, |
9252 | enum bfd_architecture arch, | |
9253 | unsigned long machine) | |
252b5132 RH |
9254 | { |
9255 | /* If this isn't the right architecture for this backend, and this | |
9256 | isn't the generic backend, fail. */ | |
9257 | if (arch != get_elf_backend_data (abfd)->arch | |
9258 | && arch != bfd_arch_unknown | |
9259 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
0a1b45a2 | 9260 | return false; |
252b5132 RH |
9261 | |
9262 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9263 | } | |
9264 | ||
d1fad7c6 NC |
9265 | /* Find the nearest line to a particular section and offset, |
9266 | for error reporting. */ | |
9267 | ||
0a1b45a2 | 9268 | bool |
217aa764 | 9269 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9270 | asymbol **symbols, |
fb167eb2 | 9271 | asection *section, |
217aa764 AM |
9272 | bfd_vma offset, |
9273 | const char **filename_ptr, | |
9274 | const char **functionname_ptr, | |
fb167eb2 AM |
9275 | unsigned int *line_ptr, |
9276 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9277 | { |
0a1b45a2 | 9278 | bool found; |
d1fad7c6 | 9279 | |
fb167eb2 | 9280 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9281 | filename_ptr, functionname_ptr, |
fb167eb2 | 9282 | line_ptr, discriminator_ptr, |
9defd221 | 9283 | dwarf_debug_sections, |
e7679060 | 9284 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
0a1b45a2 | 9285 | return true; |
e7679060 AM |
9286 | |
9287 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9288 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9289 | { |
9290 | if (!*functionname_ptr) | |
e00e8198 AM |
9291 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9292 | *filename_ptr ? NULL : filename_ptr, | |
9293 | functionname_ptr); | |
0a1b45a2 | 9294 | return true; |
d1fad7c6 NC |
9295 | } |
9296 | ||
9297 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9298 | &found, filename_ptr, |
9299 | functionname_ptr, line_ptr, | |
9300 | &elf_tdata (abfd)->line_info)) | |
0a1b45a2 | 9301 | return false; |
dc43ada5 | 9302 | if (found && (*functionname_ptr || *line_ptr)) |
0a1b45a2 | 9303 | return true; |
d1fad7c6 NC |
9304 | |
9305 | if (symbols == NULL) | |
0a1b45a2 | 9306 | return false; |
d1fad7c6 | 9307 | |
e00e8198 AM |
9308 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9309 | filename_ptr, functionname_ptr)) | |
0a1b45a2 | 9310 | return false; |
d1fad7c6 | 9311 | |
252b5132 | 9312 | *line_ptr = 0; |
0a1b45a2 | 9313 | return true; |
252b5132 RH |
9314 | } |
9315 | ||
5420f73d L |
9316 | /* Find the line for a symbol. */ |
9317 | ||
0a1b45a2 | 9318 | bool |
5420f73d L |
9319 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, |
9320 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9321 | { |
fb167eb2 AM |
9322 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9323 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9324 | dwarf_debug_sections, |
fb167eb2 | 9325 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9326 | } |
9327 | ||
4ab527b0 FF |
9328 | /* After a call to bfd_find_nearest_line, successive calls to |
9329 | bfd_find_inliner_info can be used to get source information about | |
9330 | each level of function inlining that terminated at the address | |
9331 | passed to bfd_find_nearest_line. Currently this is only supported | |
9332 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9333 | ||
0a1b45a2 | 9334 | bool |
4ab527b0 FF |
9335 | _bfd_elf_find_inliner_info (bfd *abfd, |
9336 | const char **filename_ptr, | |
9337 | const char **functionname_ptr, | |
9338 | unsigned int *line_ptr) | |
9339 | { | |
0a1b45a2 | 9340 | bool found; |
4ab527b0 FF |
9341 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, |
9342 | functionname_ptr, line_ptr, | |
9343 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9344 | return found; | |
9345 | } | |
9346 | ||
252b5132 | 9347 | int |
a6b96beb | 9348 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9349 | { |
8ded5a0f AM |
9350 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9351 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9352 | |
0e1862bb | 9353 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9354 | { |
12bd6957 | 9355 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9356 | |
62d7a5f6 AM |
9357 | if (phdr_size == (bfd_size_type) -1) |
9358 | { | |
9359 | struct elf_segment_map *m; | |
9360 | ||
9361 | phdr_size = 0; | |
12bd6957 | 9362 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9363 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9364 | |
62d7a5f6 AM |
9365 | if (phdr_size == 0) |
9366 | phdr_size = get_program_header_size (abfd, info); | |
9367 | } | |
8ded5a0f | 9368 | |
12bd6957 | 9369 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9370 | ret += phdr_size; |
9371 | } | |
9372 | ||
252b5132 RH |
9373 | return ret; |
9374 | } | |
9375 | ||
0a1b45a2 | 9376 | bool |
217aa764 AM |
9377 | _bfd_elf_set_section_contents (bfd *abfd, |
9378 | sec_ptr section, | |
0f867abe | 9379 | const void *location, |
217aa764 AM |
9380 | file_ptr offset, |
9381 | bfd_size_type count) | |
252b5132 RH |
9382 | { |
9383 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9384 | file_ptr pos; |
252b5132 RH |
9385 | |
9386 | if (! abfd->output_has_begun | |
217aa764 | 9387 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 9388 | return false; |
252b5132 | 9389 | |
0ce398f1 | 9390 | if (!count) |
0a1b45a2 | 9391 | return true; |
0ce398f1 | 9392 | |
252b5132 | 9393 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9394 | if (hdr->sh_offset == (file_ptr) -1) |
9395 | { | |
a0dcf297 NC |
9396 | unsigned char *contents; |
9397 | ||
1ff6de03 NA |
9398 | if (bfd_section_is_ctf (section)) |
9399 | /* Nothing to do with this section: the contents are generated | |
9400 | later. */ | |
0a1b45a2 | 9401 | return true; |
1ff6de03 | 9402 | |
a0dcf297 NC |
9403 | if ((section->flags & SEC_ELF_COMPRESS) == 0) |
9404 | { | |
9405 | _bfd_error_handler | |
9406 | (_("%pB:%pA: error: attempting to write into an unallocated compressed section"), | |
9407 | abfd, section); | |
9408 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9409 | return false; |
a0dcf297 NC |
9410 | } |
9411 | ||
9412 | if ((offset + count) > hdr->sh_size) | |
9413 | { | |
9414 | _bfd_error_handler | |
9415 | (_("%pB:%pA: error: attempting to write over the end of the section"), | |
9416 | abfd, section); | |
9417 | ||
9418 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9419 | return false; |
a0dcf297 NC |
9420 | } |
9421 | ||
9422 | contents = hdr->contents; | |
9423 | if (contents == NULL) | |
9424 | { | |
9425 | _bfd_error_handler | |
9426 | (_("%pB:%pA: error: attempting to write section into an empty buffer"), | |
9427 | abfd, section); | |
9428 | ||
9429 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9430 | return false; |
a0dcf297 NC |
9431 | } |
9432 | ||
0ce398f1 | 9433 | memcpy (contents + offset, location, count); |
0a1b45a2 | 9434 | return true; |
0ce398f1 | 9435 | } |
a0dcf297 | 9436 | |
dc810e39 AM |
9437 | pos = hdr->sh_offset + offset; |
9438 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9439 | || bfd_bwrite (location, count, abfd) != count) | |
0a1b45a2 | 9440 | return false; |
252b5132 | 9441 | |
0a1b45a2 | 9442 | return true; |
252b5132 RH |
9443 | } |
9444 | ||
0a1b45a2 | 9445 | bool |
217aa764 AM |
9446 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9447 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9448 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9449 | { |
9450 | abort (); | |
0a1b45a2 | 9451 | return false; |
252b5132 RH |
9452 | } |
9453 | ||
252b5132 RH |
9454 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9455 | ||
0a1b45a2 | 9456 | bool |
217aa764 | 9457 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9458 | { |
c044fabd | 9459 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9460 | |
9461 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9462 | { | |
9463 | bfd_reloc_code_real_type code; | |
9464 | reloc_howto_type *howto; | |
9465 | ||
9466 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9467 | equivalent ELF reloc. */ |
252b5132 RH |
9468 | |
9469 | if (areloc->howto->pc_relative) | |
9470 | { | |
9471 | switch (areloc->howto->bitsize) | |
9472 | { | |
9473 | case 8: | |
9474 | code = BFD_RELOC_8_PCREL; | |
9475 | break; | |
9476 | case 12: | |
9477 | code = BFD_RELOC_12_PCREL; | |
9478 | break; | |
9479 | case 16: | |
9480 | code = BFD_RELOC_16_PCREL; | |
9481 | break; | |
9482 | case 24: | |
9483 | code = BFD_RELOC_24_PCREL; | |
9484 | break; | |
9485 | case 32: | |
9486 | code = BFD_RELOC_32_PCREL; | |
9487 | break; | |
9488 | case 64: | |
9489 | code = BFD_RELOC_64_PCREL; | |
9490 | break; | |
9491 | default: | |
9492 | goto fail; | |
9493 | } | |
9494 | ||
9495 | howto = bfd_reloc_type_lookup (abfd, code); | |
9496 | ||
94698d01 | 9497 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9498 | { |
9499 | if (howto->pcrel_offset) | |
9500 | areloc->addend += areloc->address; | |
9501 | else | |
9502 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9503 | } | |
9504 | } | |
9505 | else | |
9506 | { | |
9507 | switch (areloc->howto->bitsize) | |
9508 | { | |
9509 | case 8: | |
9510 | code = BFD_RELOC_8; | |
9511 | break; | |
9512 | case 14: | |
9513 | code = BFD_RELOC_14; | |
9514 | break; | |
9515 | case 16: | |
9516 | code = BFD_RELOC_16; | |
9517 | break; | |
9518 | case 26: | |
9519 | code = BFD_RELOC_26; | |
9520 | break; | |
9521 | case 32: | |
9522 | code = BFD_RELOC_32; | |
9523 | break; | |
9524 | case 64: | |
9525 | code = BFD_RELOC_64; | |
9526 | break; | |
9527 | default: | |
9528 | goto fail; | |
9529 | } | |
9530 | ||
9531 | howto = bfd_reloc_type_lookup (abfd, code); | |
9532 | } | |
9533 | ||
9534 | if (howto) | |
9535 | areloc->howto = howto; | |
9536 | else | |
9537 | goto fail; | |
9538 | } | |
9539 | ||
0a1b45a2 | 9540 | return true; |
252b5132 RH |
9541 | |
9542 | fail: | |
0aa13fee AM |
9543 | /* xgettext:c-format */ |
9544 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9545 | abfd, areloc->howto->name); | |
9aea1e31 | 9546 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 9547 | return false; |
252b5132 RH |
9548 | } |
9549 | ||
0a1b45a2 | 9550 | bool |
217aa764 | 9551 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9552 | { |
d9071b0c | 9553 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
0ed18fa1 AM |
9554 | if (tdata != NULL |
9555 | && (bfd_get_format (abfd) == bfd_object | |
9556 | || bfd_get_format (abfd) == bfd_core)) | |
252b5132 | 9557 | { |
c0355132 | 9558 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9559 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9560 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9561 | } |
9562 | ||
9563 | return _bfd_generic_close_and_cleanup (abfd); | |
9564 | } | |
9565 | ||
9566 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9567 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9568 | range-checking to interfere. There is nothing else to do in processing | |
9569 | this reloc. */ | |
9570 | ||
9571 | bfd_reloc_status_type | |
217aa764 AM |
9572 | _bfd_elf_rel_vtable_reloc_fn |
9573 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9574 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9575 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9576 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9577 | { |
9578 | return bfd_reloc_ok; | |
9579 | } | |
252b5132 RH |
9580 | \f |
9581 | /* Elf core file support. Much of this only works on native | |
9582 | toolchains, since we rely on knowing the | |
9583 | machine-dependent procfs structure in order to pick | |
c044fabd | 9584 | out details about the corefile. */ |
252b5132 RH |
9585 | |
9586 | #ifdef HAVE_SYS_PROCFS_H | |
9587 | # include <sys/procfs.h> | |
9588 | #endif | |
9589 | ||
261b8d08 PA |
9590 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9591 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9592 | |
9593 | static int | |
217aa764 | 9594 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9595 | { |
261b8d08 PA |
9596 | int pid; |
9597 | ||
228e534f | 9598 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9599 | if (pid == 0) |
228e534f | 9600 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9601 | |
9602 | return pid; | |
252b5132 RH |
9603 | } |
9604 | ||
252b5132 RH |
9605 | /* If there isn't a section called NAME, make one, using |
9606 | data from SECT. Note, this function will generate a | |
9607 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9608 | overwrite it. */ |
252b5132 | 9609 | |
0a1b45a2 | 9610 | static bool |
217aa764 | 9611 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9612 | { |
c044fabd | 9613 | asection *sect2; |
252b5132 RH |
9614 | |
9615 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
0a1b45a2 | 9616 | return true; |
252b5132 | 9617 | |
117ed4f8 | 9618 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9619 | if (sect2 == NULL) |
0a1b45a2 | 9620 | return false; |
252b5132 | 9621 | |
eea6121a | 9622 | sect2->size = sect->size; |
252b5132 | 9623 | sect2->filepos = sect->filepos; |
252b5132 | 9624 | sect2->alignment_power = sect->alignment_power; |
0a1b45a2 | 9625 | return true; |
252b5132 RH |
9626 | } |
9627 | ||
bb0082d6 AM |
9628 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9629 | actually creates up to two pseudosections: | |
9630 | - For the single-threaded case, a section named NAME, unless | |
9631 | such a section already exists. | |
9632 | - For the multi-threaded case, a section named "NAME/PID", where | |
9633 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9634 | Both pseudosections have identical contents. */ |
0a1b45a2 | 9635 | bool |
217aa764 AM |
9636 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9637 | char *name, | |
9638 | size_t size, | |
9639 | ufile_ptr filepos) | |
bb0082d6 AM |
9640 | { |
9641 | char buf[100]; | |
9642 | char *threaded_name; | |
d4c88bbb | 9643 | size_t len; |
bb0082d6 AM |
9644 | asection *sect; |
9645 | ||
9646 | /* Build the section name. */ | |
9647 | ||
9648 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9649 | len = strlen (buf) + 1; |
a50b1753 | 9650 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9651 | if (threaded_name == NULL) |
0a1b45a2 | 9652 | return false; |
d4c88bbb | 9653 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9654 | |
117ed4f8 AM |
9655 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9656 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9657 | if (sect == NULL) |
0a1b45a2 | 9658 | return false; |
eea6121a | 9659 | sect->size = size; |
bb0082d6 | 9660 | sect->filepos = filepos; |
bb0082d6 AM |
9661 | sect->alignment_power = 2; |
9662 | ||
936e320b | 9663 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9664 | } |
9665 | ||
0a1b45a2 | 9666 | static bool |
58e07198 CZ |
9667 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, |
9668 | size_t offs) | |
9669 | { | |
9670 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9671 | SEC_HAS_CONTENTS); | |
9672 | ||
9673 | if (sect == NULL) | |
0a1b45a2 | 9674 | return false; |
58e07198 CZ |
9675 | |
9676 | sect->size = note->descsz - offs; | |
9677 | sect->filepos = note->descpos + offs; | |
9678 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9679 | ||
0a1b45a2 | 9680 | return true; |
58e07198 CZ |
9681 | } |
9682 | ||
252b5132 | 9683 | /* prstatus_t exists on: |
4a938328 | 9684 | solaris 2.5+ |
252b5132 RH |
9685 | linux 2.[01] + glibc |
9686 | unixware 4.2 | |
9687 | */ | |
9688 | ||
9689 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9690 | |
0a1b45a2 | 9691 | static bool |
217aa764 | 9692 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9693 | { |
eea6121a | 9694 | size_t size; |
7ee38065 | 9695 | int offset; |
252b5132 | 9696 | |
4a938328 MS |
9697 | if (note->descsz == sizeof (prstatus_t)) |
9698 | { | |
9699 | prstatus_t prstat; | |
252b5132 | 9700 | |
eea6121a | 9701 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9702 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9703 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9704 | |
fa49d224 NC |
9705 | /* Do not overwrite the core signal if it |
9706 | has already been set by another thread. */ | |
228e534f AM |
9707 | if (elf_tdata (abfd)->core->signal == 0) |
9708 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9709 | if (elf_tdata (abfd)->core->pid == 0) | |
9710 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9711 | |
4a938328 MS |
9712 | /* pr_who exists on: |
9713 | solaris 2.5+ | |
9714 | unixware 4.2 | |
9715 | pr_who doesn't exist on: | |
9716 | linux 2.[01] | |
9717 | */ | |
252b5132 | 9718 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9719 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9720 | #else |
228e534f | 9721 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9722 | #endif |
4a938328 | 9723 | } |
7ee38065 | 9724 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9725 | else if (note->descsz == sizeof (prstatus32_t)) |
9726 | { | |
9727 | /* 64-bit host, 32-bit corefile */ | |
9728 | prstatus32_t prstat; | |
9729 | ||
eea6121a | 9730 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9731 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9732 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9733 | ||
fa49d224 NC |
9734 | /* Do not overwrite the core signal if it |
9735 | has already been set by another thread. */ | |
228e534f AM |
9736 | if (elf_tdata (abfd)->core->signal == 0) |
9737 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9738 | if (elf_tdata (abfd)->core->pid == 0) | |
9739 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9740 | |
9741 | /* pr_who exists on: | |
9742 | solaris 2.5+ | |
9743 | unixware 4.2 | |
9744 | pr_who doesn't exist on: | |
9745 | linux 2.[01] | |
9746 | */ | |
7ee38065 | 9747 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9748 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9749 | #else |
228e534f | 9750 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9751 | #endif |
9752 | } | |
7ee38065 | 9753 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9754 | else |
9755 | { | |
9756 | /* Fail - we don't know how to handle any other | |
9757 | note size (ie. data object type). */ | |
0a1b45a2 | 9758 | return true; |
4a938328 | 9759 | } |
252b5132 | 9760 | |
bb0082d6 | 9761 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9762 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9763 | size, note->descpos + offset); |
252b5132 RH |
9764 | } |
9765 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9766 | ||
bb0082d6 | 9767 | /* Create a pseudosection containing the exact contents of NOTE. */ |
0a1b45a2 | 9768 | static bool |
217aa764 AM |
9769 | elfcore_make_note_pseudosection (bfd *abfd, |
9770 | char *name, | |
9771 | Elf_Internal_Note *note) | |
252b5132 | 9772 | { |
936e320b AM |
9773 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9774 | note->descsz, note->descpos); | |
252b5132 RH |
9775 | } |
9776 | ||
ff08c6bb JB |
9777 | /* There isn't a consistent prfpregset_t across platforms, |
9778 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9779 | data structure apart. */ |
9780 | ||
0a1b45a2 | 9781 | static bool |
217aa764 | 9782 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9783 | { |
9784 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9785 | } | |
9786 | ||
ff08c6bb | 9787 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9788 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9789 | literally. */ |
c044fabd | 9790 | |
0a1b45a2 | 9791 | static bool |
217aa764 | 9792 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9793 | { |
9794 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9795 | } | |
9796 | ||
4339cae0 L |
9797 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9798 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9799 | contents literally. */ | |
9800 | ||
0a1b45a2 | 9801 | static bool |
4339cae0 L |
9802 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) |
9803 | { | |
9804 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9805 | } | |
9806 | ||
0a1b45a2 | 9807 | static bool |
97753bd5 AM |
9808 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) |
9809 | { | |
9810 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9811 | } | |
9812 | ||
0a1b45a2 | 9813 | static bool |
89eeb0bc LM |
9814 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) |
9815 | { | |
9816 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9817 | } | |
97753bd5 | 9818 | |
0a1b45a2 | 9819 | static bool |
cb2366c1 EBM |
9820 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) |
9821 | { | |
9822 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9823 | } | |
9824 | ||
0a1b45a2 | 9825 | static bool |
cb2366c1 EBM |
9826 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) |
9827 | { | |
9828 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9829 | } | |
9830 | ||
0a1b45a2 | 9831 | static bool |
cb2366c1 EBM |
9832 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) |
9833 | { | |
9834 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9835 | } | |
9836 | ||
0a1b45a2 | 9837 | static bool |
cb2366c1 EBM |
9838 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) |
9839 | { | |
9840 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9841 | } | |
9842 | ||
0a1b45a2 | 9843 | static bool |
cb2366c1 EBM |
9844 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) |
9845 | { | |
9846 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9847 | } | |
9848 | ||
0a1b45a2 | 9849 | static bool |
cb2366c1 EBM |
9850 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) |
9851 | { | |
9852 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9853 | } | |
9854 | ||
0a1b45a2 | 9855 | static bool |
cb2366c1 EBM |
9856 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) |
9857 | { | |
9858 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9859 | } | |
9860 | ||
0a1b45a2 | 9861 | static bool |
cb2366c1 EBM |
9862 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) |
9863 | { | |
9864 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9865 | } | |
9866 | ||
0a1b45a2 | 9867 | static bool |
cb2366c1 EBM |
9868 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) |
9869 | { | |
9870 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9871 | } | |
9872 | ||
0a1b45a2 | 9873 | static bool |
cb2366c1 EBM |
9874 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) |
9875 | { | |
9876 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9877 | } | |
9878 | ||
0a1b45a2 | 9879 | static bool |
cb2366c1 EBM |
9880 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) |
9881 | { | |
9882 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9883 | } | |
9884 | ||
0a1b45a2 | 9885 | static bool |
cb2366c1 EBM |
9886 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) |
9887 | { | |
9888 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9889 | } | |
9890 | ||
0a1b45a2 | 9891 | static bool |
cb2366c1 EBM |
9892 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) |
9893 | { | |
9894 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9895 | } | |
9896 | ||
0a1b45a2 | 9897 | static bool |
0675e188 UW |
9898 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) |
9899 | { | |
9900 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9901 | } | |
9902 | ||
0a1b45a2 | 9903 | static bool |
d7eeb400 MS |
9904 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) |
9905 | { | |
9906 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9907 | } | |
9908 | ||
0a1b45a2 | 9909 | static bool |
d7eeb400 MS |
9910 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) |
9911 | { | |
9912 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9913 | } | |
9914 | ||
0a1b45a2 | 9915 | static bool |
d7eeb400 MS |
9916 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) |
9917 | { | |
9918 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9919 | } | |
9920 | ||
0a1b45a2 | 9921 | static bool |
d7eeb400 MS |
9922 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) |
9923 | { | |
9924 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9925 | } | |
9926 | ||
0a1b45a2 | 9927 | static bool |
d7eeb400 MS |
9928 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) |
9929 | { | |
9930 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9931 | } | |
9932 | ||
0a1b45a2 | 9933 | static bool |
355b81d9 UW |
9934 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) |
9935 | { | |
9936 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9937 | } | |
9938 | ||
0a1b45a2 | 9939 | static bool |
355b81d9 UW |
9940 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) |
9941 | { | |
9942 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9943 | } | |
9944 | ||
0a1b45a2 | 9945 | static bool |
abb3f6cc NC |
9946 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) |
9947 | { | |
9948 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9949 | } | |
9950 | ||
0a1b45a2 | 9951 | static bool |
4ef9f41a AA |
9952 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) |
9953 | { | |
9954 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9955 | } | |
9956 | ||
0a1b45a2 | 9957 | static bool |
4ef9f41a AA |
9958 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) |
9959 | { | |
9960 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9961 | } | |
9962 | ||
0a1b45a2 | 9963 | static bool |
88ab90e8 AA |
9964 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) |
9965 | { | |
9966 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9967 | } | |
9968 | ||
0a1b45a2 | 9969 | static bool |
88ab90e8 AA |
9970 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) |
9971 | { | |
9972 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9973 | } | |
9974 | ||
0a1b45a2 | 9975 | static bool |
faa9a424 UW |
9976 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) |
9977 | { | |
9978 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9979 | } | |
9980 | ||
0a1b45a2 | 9981 | static bool |
652451f8 YZ |
9982 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) |
9983 | { | |
9984 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9985 | } | |
9986 | ||
0a1b45a2 | 9987 | static bool |
652451f8 YZ |
9988 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) |
9989 | { | |
9990 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9991 | } | |
9992 | ||
0a1b45a2 | 9993 | static bool |
652451f8 YZ |
9994 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) |
9995 | { | |
9996 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9997 | } | |
9998 | ||
0a1b45a2 | 9999 | static bool |
ad1cc4e4 AH |
10000 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) |
10001 | { | |
10002 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
10003 | } | |
10004 | ||
0a1b45a2 | 10005 | static bool |
e6c3b5bf AH |
10006 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) |
10007 | { | |
10008 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
10009 | } | |
10010 | ||
f0bbe8ba LM |
10011 | static bool |
10012 | elfcore_grok_aarch_mte (bfd *abfd, Elf_Internal_Note *note) | |
10013 | { | |
10014 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-mte", | |
10015 | note); | |
10016 | } | |
10017 | ||
0a1b45a2 | 10018 | static bool |
27456742 AK |
10019 | elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) |
10020 | { | |
10021 | return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); | |
10022 | } | |
10023 | ||
db6092f3 AB |
10024 | /* Convert NOTE into a bfd_section called ".reg-riscv-csr". Return TRUE if |
10025 | successful otherwise, return FALSE. */ | |
10026 | ||
0a1b45a2 | 10027 | static bool |
db6092f3 AB |
10028 | elfcore_grok_riscv_csr (bfd *abfd, Elf_Internal_Note *note) |
10029 | { | |
10030 | return elfcore_make_note_pseudosection (abfd, ".reg-riscv-csr", note); | |
10031 | } | |
10032 | ||
b63a5e38 AB |
10033 | /* Convert NOTE into a bfd_section called ".gdb-tdesc". Return TRUE if |
10034 | successful otherwise, return FALSE. */ | |
10035 | ||
0a1b45a2 | 10036 | static bool |
b63a5e38 AB |
10037 | elfcore_grok_gdb_tdesc (bfd *abfd, Elf_Internal_Note *note) |
10038 | { | |
10039 | return elfcore_make_note_pseudosection (abfd, ".gdb-tdesc", note); | |
10040 | } | |
10041 | ||
e214f8db | 10042 | static bool |
10043 | elfcore_grok_loongarch_cpucfg (bfd *abfd, Elf_Internal_Note *note) | |
10044 | { | |
10045 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-cpucfg", note); | |
10046 | } | |
10047 | ||
10048 | static bool | |
10049 | elfcore_grok_loongarch_lbt (bfd *abfd, Elf_Internal_Note *note) | |
10050 | { | |
10051 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lbt", note); | |
10052 | } | |
10053 | ||
10054 | static bool | |
10055 | elfcore_grok_loongarch_lsx (bfd *abfd, Elf_Internal_Note *note) | |
10056 | { | |
10057 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lsx", note); | |
10058 | } | |
10059 | ||
10060 | static bool | |
10061 | elfcore_grok_loongarch_lasx (bfd *abfd, Elf_Internal_Note *note) | |
10062 | { | |
10063 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lasx", note); | |
10064 | } | |
10065 | ||
252b5132 | 10066 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 10067 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 10068 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
10069 | typedef prpsinfo32_t elfcore_psinfo32_t; |
10070 | #endif | |
252b5132 RH |
10071 | #endif |
10072 | ||
10073 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 10074 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 10075 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
10076 | typedef psinfo32_t elfcore_psinfo32_t; |
10077 | #endif | |
252b5132 RH |
10078 | #endif |
10079 | ||
252b5132 RH |
10080 | /* return a malloc'ed copy of a string at START which is at |
10081 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 10082 | the copy will always have a terminating '\0'. */ |
252b5132 | 10083 | |
936e320b | 10084 | char * |
217aa764 | 10085 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 10086 | { |
dc810e39 | 10087 | char *dups; |
a50b1753 | 10088 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 10089 | size_t len; |
252b5132 RH |
10090 | |
10091 | if (end == NULL) | |
10092 | len = max; | |
10093 | else | |
10094 | len = end - start; | |
10095 | ||
a50b1753 | 10096 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 10097 | if (dups == NULL) |
252b5132 RH |
10098 | return NULL; |
10099 | ||
dc810e39 AM |
10100 | memcpy (dups, start, len); |
10101 | dups[len] = '\0'; | |
252b5132 | 10102 | |
dc810e39 | 10103 | return dups; |
252b5132 RH |
10104 | } |
10105 | ||
bb0082d6 | 10106 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
0a1b45a2 | 10107 | static bool |
217aa764 | 10108 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10109 | { |
4a938328 MS |
10110 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
10111 | { | |
10112 | elfcore_psinfo_t psinfo; | |
252b5132 | 10113 | |
7ee38065 | 10114 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10115 | |
335e41d4 | 10116 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 10117 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10118 | #endif |
228e534f | 10119 | elf_tdata (abfd)->core->program |
936e320b AM |
10120 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10121 | sizeof (psinfo.pr_fname)); | |
252b5132 | 10122 | |
228e534f | 10123 | elf_tdata (abfd)->core->command |
936e320b AM |
10124 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10125 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 10126 | } |
7ee38065 | 10127 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
10128 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
10129 | { | |
10130 | /* 64-bit host, 32-bit corefile */ | |
10131 | elfcore_psinfo32_t psinfo; | |
10132 | ||
7ee38065 | 10133 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10134 | |
335e41d4 | 10135 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 10136 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10137 | #endif |
228e534f | 10138 | elf_tdata (abfd)->core->program |
936e320b AM |
10139 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10140 | sizeof (psinfo.pr_fname)); | |
4a938328 | 10141 | |
228e534f | 10142 | elf_tdata (abfd)->core->command |
936e320b AM |
10143 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10144 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
10145 | } |
10146 | #endif | |
10147 | ||
10148 | else | |
10149 | { | |
10150 | /* Fail - we don't know how to handle any other | |
10151 | note size (ie. data object type). */ | |
0a1b45a2 | 10152 | return true; |
4a938328 | 10153 | } |
252b5132 RH |
10154 | |
10155 | /* Note that for some reason, a spurious space is tacked | |
10156 | onto the end of the args in some (at least one anyway) | |
c044fabd | 10157 | implementations, so strip it off if it exists. */ |
252b5132 RH |
10158 | |
10159 | { | |
228e534f | 10160 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
10161 | int n = strlen (command); |
10162 | ||
10163 | if (0 < n && command[n - 1] == ' ') | |
10164 | command[n - 1] = '\0'; | |
10165 | } | |
10166 | ||
0a1b45a2 | 10167 | return true; |
252b5132 RH |
10168 | } |
10169 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
10170 | ||
252b5132 | 10171 | #if defined (HAVE_PSTATUS_T) |
0a1b45a2 | 10172 | static bool |
217aa764 | 10173 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10174 | { |
f572a39d AM |
10175 | if (note->descsz == sizeof (pstatus_t) |
10176 | #if defined (HAVE_PXSTATUS_T) | |
10177 | || note->descsz == sizeof (pxstatus_t) | |
10178 | #endif | |
10179 | ) | |
4a938328 MS |
10180 | { |
10181 | pstatus_t pstat; | |
252b5132 | 10182 | |
4a938328 | 10183 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10184 | |
228e534f | 10185 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 10186 | } |
7ee38065 | 10187 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
10188 | else if (note->descsz == sizeof (pstatus32_t)) |
10189 | { | |
10190 | /* 64-bit host, 32-bit corefile */ | |
10191 | pstatus32_t pstat; | |
252b5132 | 10192 | |
4a938328 | 10193 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10194 | |
228e534f | 10195 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
10196 | } |
10197 | #endif | |
252b5132 RH |
10198 | /* Could grab some more details from the "representative" |
10199 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 10200 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 10201 | |
0a1b45a2 | 10202 | return true; |
252b5132 RH |
10203 | } |
10204 | #endif /* defined (HAVE_PSTATUS_T) */ | |
10205 | ||
252b5132 | 10206 | #if defined (HAVE_LWPSTATUS_T) |
0a1b45a2 | 10207 | static bool |
217aa764 | 10208 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
10209 | { |
10210 | lwpstatus_t lwpstat; | |
10211 | char buf[100]; | |
c044fabd | 10212 | char *name; |
d4c88bbb | 10213 | size_t len; |
c044fabd | 10214 | asection *sect; |
252b5132 | 10215 | |
f572a39d AM |
10216 | if (note->descsz != sizeof (lwpstat) |
10217 | #if defined (HAVE_LWPXSTATUS_T) | |
10218 | && note->descsz != sizeof (lwpxstatus_t) | |
10219 | #endif | |
10220 | ) | |
0a1b45a2 | 10221 | return true; |
252b5132 RH |
10222 | |
10223 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
10224 | ||
228e534f | 10225 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
10226 | /* Do not overwrite the core signal if it has already been set by |
10227 | another thread. */ | |
228e534f AM |
10228 | if (elf_tdata (abfd)->core->signal == 0) |
10229 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 10230 | |
c044fabd | 10231 | /* Make a ".reg/999" section. */ |
252b5132 RH |
10232 | |
10233 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10234 | len = strlen (buf) + 1; |
217aa764 | 10235 | name = bfd_alloc (abfd, len); |
252b5132 | 10236 | if (name == NULL) |
0a1b45a2 | 10237 | return false; |
d4c88bbb | 10238 | memcpy (name, buf, len); |
252b5132 | 10239 | |
117ed4f8 | 10240 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10241 | if (sect == NULL) |
0a1b45a2 | 10242 | return false; |
252b5132 RH |
10243 | |
10244 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10245 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
10246 | sect->filepos = note->descpos |
10247 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
10248 | #endif | |
10249 | ||
10250 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 10251 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
10252 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
10253 | #endif | |
10254 | ||
252b5132 RH |
10255 | sect->alignment_power = 2; |
10256 | ||
10257 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
0a1b45a2 | 10258 | return false; |
252b5132 RH |
10259 | |
10260 | /* Make a ".reg2/999" section */ | |
10261 | ||
10262 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10263 | len = strlen (buf) + 1; |
217aa764 | 10264 | name = bfd_alloc (abfd, len); |
252b5132 | 10265 | if (name == NULL) |
0a1b45a2 | 10266 | return false; |
d4c88bbb | 10267 | memcpy (name, buf, len); |
252b5132 | 10268 | |
117ed4f8 | 10269 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10270 | if (sect == NULL) |
0a1b45a2 | 10271 | return false; |
252b5132 RH |
10272 | |
10273 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10274 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
10275 | sect->filepos = note->descpos |
10276 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
10277 | #endif | |
10278 | ||
10279 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 10280 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
10281 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
10282 | #endif | |
10283 | ||
252b5132 RH |
10284 | sect->alignment_power = 2; |
10285 | ||
936e320b | 10286 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
10287 | } |
10288 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
10289 | ||
8fbac78b JT |
10290 | /* These constants, and the structure offsets used below, are defined by |
10291 | Cygwin's core_dump.h */ | |
10292 | #define NOTE_INFO_PROCESS 1 | |
10293 | #define NOTE_INFO_THREAD 2 | |
10294 | #define NOTE_INFO_MODULE 3 | |
d61f3d03 | 10295 | #define NOTE_INFO_MODULE64 4 |
8fbac78b | 10296 | |
0a1b45a2 | 10297 | static bool |
217aa764 | 10298 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
10299 | { |
10300 | char buf[30]; | |
c044fabd | 10301 | char *name; |
d4c88bbb | 10302 | size_t len; |
3cdad084 | 10303 | unsigned int name_size; |
c044fabd | 10304 | asection *sect; |
2fef9373 | 10305 | unsigned int type; |
4a6636fb PA |
10306 | int is_active_thread; |
10307 | bfd_vma base_addr; | |
16e9c715 | 10308 | |
04ec0fa2 | 10309 | if (note->descsz < 4) |
0a1b45a2 | 10310 | return true; |
16e9c715 | 10311 | |
08dedd66 | 10312 | if (! startswith (note->namedata, "win32")) |
0a1b45a2 | 10313 | return true; |
4a6636fb PA |
10314 | |
10315 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10316 | |
7e0d77ef NC |
10317 | struct |
10318 | { | |
404ec933 JT |
10319 | const char *type_name; |
10320 | unsigned long min_size; | |
10321 | } size_check[] = | |
10322 | { | |
10323 | { "NOTE_INFO_PROCESS", 12 }, | |
10324 | { "NOTE_INFO_THREAD", 12 }, | |
10325 | { "NOTE_INFO_MODULE", 12 }, | |
10326 | { "NOTE_INFO_MODULE64", 16 }, | |
10327 | }; | |
10328 | ||
7e0d77ef | 10329 | if (type == 0 || type > (sizeof(size_check)/sizeof(size_check[0]))) |
0a1b45a2 | 10330 | return true; |
404ec933 JT |
10331 | |
10332 | if (note->descsz < size_check[type - 1].min_size) | |
10333 | { | |
10334 | _bfd_error_handler (_("%pB: warning: win32pstatus %s of size %lu bytes is too small"), | |
10335 | abfd, size_check[type - 1].type_name, note->descsz); | |
0a1b45a2 | 10336 | return true; |
404ec933 JT |
10337 | } |
10338 | ||
4a6636fb | 10339 | switch (type) |
16e9c715 | 10340 | { |
8fbac78b | 10341 | case NOTE_INFO_PROCESS: |
228e534f | 10342 | /* FIXME: need to add ->core->command. */ |
ff2084b9 | 10343 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 4); |
ff2084b9 | 10344 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 8); |
c044fabd | 10345 | break; |
16e9c715 | 10346 | |
8fbac78b | 10347 | case NOTE_INFO_THREAD: |
ff2084b9 JT |
10348 | /* Make a ".reg/<tid>" section containing the Win32 API thread CONTEXT |
10349 | structure. */ | |
4a6636fb | 10350 | /* thread_info.tid */ |
ff2084b9 | 10351 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 4)); |
c044fabd | 10352 | |
d4c88bbb | 10353 | len = strlen (buf) + 1; |
a50b1753 | 10354 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10355 | if (name == NULL) |
0a1b45a2 | 10356 | return false; |
c044fabd | 10357 | |
d4c88bbb | 10358 | memcpy (name, buf, len); |
16e9c715 | 10359 | |
117ed4f8 | 10360 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10361 | if (sect == NULL) |
0a1b45a2 | 10362 | return false; |
c044fabd | 10363 | |
4a6636fb | 10364 | /* sizeof (thread_info.thread_context) */ |
03c29a6f | 10365 | sect->size = note->descsz - 12; |
4a6636fb PA |
10366 | /* offsetof (thread_info.thread_context) */ |
10367 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10368 | sect->alignment_power = 2; |
10369 | ||
4a6636fb PA |
10370 | /* thread_info.is_active_thread */ |
10371 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10372 | ||
10373 | if (is_active_thread) | |
16e9c715 | 10374 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
0a1b45a2 | 10375 | return false; |
16e9c715 NC |
10376 | break; |
10377 | ||
8fbac78b | 10378 | case NOTE_INFO_MODULE: |
d61f3d03 | 10379 | case NOTE_INFO_MODULE64: |
16e9c715 | 10380 | /* Make a ".module/xxxxxxxx" section. */ |
d61f3d03 JT |
10381 | if (type == NOTE_INFO_MODULE) |
10382 | { | |
d61f3d03 JT |
10383 | /* module_info.base_address */ |
10384 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
10385 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); | |
10386 | /* module_info.module_name_size */ | |
10387 | name_size = bfd_get_32 (abfd, note->descdata + 8); | |
10388 | } | |
10389 | else /* NOTE_INFO_MODULE64 */ | |
10390 | { | |
d61f3d03 JT |
10391 | /* module_info.base_address */ |
10392 | base_addr = bfd_get_64 (abfd, note->descdata + 4); | |
10393 | sprintf (buf, ".module/%016lx", (unsigned long) base_addr); | |
10394 | /* module_info.module_name_size */ | |
10395 | name_size = bfd_get_32 (abfd, note->descdata + 12); | |
10396 | } | |
c044fabd | 10397 | |
d4c88bbb | 10398 | len = strlen (buf) + 1; |
a50b1753 | 10399 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10400 | if (name == NULL) |
0a1b45a2 | 10401 | return false; |
c044fabd | 10402 | |
d4c88bbb | 10403 | memcpy (name, buf, len); |
252b5132 | 10404 | |
117ed4f8 | 10405 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10406 | |
16e9c715 | 10407 | if (sect == NULL) |
0a1b45a2 | 10408 | return false; |
c044fabd | 10409 | |
04ec0fa2 | 10410 | if (note->descsz < 12 + name_size) |
404ec933 | 10411 | { |
3cdad084 | 10412 | _bfd_error_handler (_("%pB: win32pstatus NOTE_INFO_MODULE of size %lu is too small to contain a name of size %u"), |
404ec933 | 10413 | abfd, note->descsz, name_size); |
0a1b45a2 | 10414 | return true; |
404ec933 | 10415 | } |
04ec0fa2 | 10416 | |
eea6121a | 10417 | sect->size = note->descsz; |
16e9c715 | 10418 | sect->filepos = note->descpos; |
16e9c715 NC |
10419 | sect->alignment_power = 2; |
10420 | break; | |
10421 | ||
10422 | default: | |
0a1b45a2 | 10423 | return true; |
16e9c715 NC |
10424 | } |
10425 | ||
0a1b45a2 | 10426 | return true; |
16e9c715 | 10427 | } |
252b5132 | 10428 | |
0a1b45a2 | 10429 | static bool |
217aa764 | 10430 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10431 | { |
9c5bfbb7 | 10432 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10433 | |
252b5132 RH |
10434 | switch (note->type) |
10435 | { | |
10436 | default: | |
0a1b45a2 | 10437 | return true; |
252b5132 | 10438 | |
252b5132 | 10439 | case NT_PRSTATUS: |
bb0082d6 AM |
10440 | if (bed->elf_backend_grok_prstatus) |
10441 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
0a1b45a2 | 10442 | return true; |
bb0082d6 | 10443 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10444 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10445 | #else |
0a1b45a2 | 10446 | return true; |
252b5132 RH |
10447 | #endif |
10448 | ||
10449 | #if defined (HAVE_PSTATUS_T) | |
10450 | case NT_PSTATUS: | |
10451 | return elfcore_grok_pstatus (abfd, note); | |
10452 | #endif | |
10453 | ||
10454 | #if defined (HAVE_LWPSTATUS_T) | |
10455 | case NT_LWPSTATUS: | |
10456 | return elfcore_grok_lwpstatus (abfd, note); | |
10457 | #endif | |
10458 | ||
10459 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10460 | return elfcore_grok_prfpreg (abfd, note); | |
10461 | ||
c044fabd | 10462 | case NT_WIN32PSTATUS: |
16e9c715 | 10463 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10464 | |
c044fabd | 10465 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10466 | if (note->namesz == 6 |
10467 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10468 | return elfcore_grok_prxfpreg (abfd, note); |
10469 | else | |
0a1b45a2 | 10470 | return true; |
ff08c6bb | 10471 | |
4339cae0 L |
10472 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10473 | if (note->namesz == 6 | |
10474 | && strcmp (note->namedata, "LINUX") == 0) | |
10475 | return elfcore_grok_xstatereg (abfd, note); | |
10476 | else | |
0a1b45a2 | 10477 | return true; |
4339cae0 | 10478 | |
97753bd5 AM |
10479 | case NT_PPC_VMX: |
10480 | if (note->namesz == 6 | |
10481 | && strcmp (note->namedata, "LINUX") == 0) | |
10482 | return elfcore_grok_ppc_vmx (abfd, note); | |
10483 | else | |
0a1b45a2 | 10484 | return true; |
97753bd5 | 10485 | |
89eeb0bc LM |
10486 | case NT_PPC_VSX: |
10487 | if (note->namesz == 6 | |
07d6d2b8 AM |
10488 | && strcmp (note->namedata, "LINUX") == 0) |
10489 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10490 | else |
0a1b45a2 | 10491 | return true; |
89eeb0bc | 10492 | |
cb2366c1 EBM |
10493 | case NT_PPC_TAR: |
10494 | if (note->namesz == 6 | |
4b24dd1a AM |
10495 | && strcmp (note->namedata, "LINUX") == 0) |
10496 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10497 | else |
0a1b45a2 | 10498 | return true; |
cb2366c1 EBM |
10499 | |
10500 | case NT_PPC_PPR: | |
10501 | if (note->namesz == 6 | |
4b24dd1a AM |
10502 | && strcmp (note->namedata, "LINUX") == 0) |
10503 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10504 | else |
0a1b45a2 | 10505 | return true; |
cb2366c1 EBM |
10506 | |
10507 | case NT_PPC_DSCR: | |
10508 | if (note->namesz == 6 | |
4b24dd1a AM |
10509 | && strcmp (note->namedata, "LINUX") == 0) |
10510 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10511 | else |
0a1b45a2 | 10512 | return true; |
cb2366c1 EBM |
10513 | |
10514 | case NT_PPC_EBB: | |
10515 | if (note->namesz == 6 | |
4b24dd1a AM |
10516 | && strcmp (note->namedata, "LINUX") == 0) |
10517 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10518 | else |
0a1b45a2 | 10519 | return true; |
cb2366c1 EBM |
10520 | |
10521 | case NT_PPC_PMU: | |
10522 | if (note->namesz == 6 | |
4b24dd1a AM |
10523 | && strcmp (note->namedata, "LINUX") == 0) |
10524 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10525 | else |
0a1b45a2 | 10526 | return true; |
cb2366c1 EBM |
10527 | |
10528 | case NT_PPC_TM_CGPR: | |
10529 | if (note->namesz == 6 | |
4b24dd1a AM |
10530 | && strcmp (note->namedata, "LINUX") == 0) |
10531 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10532 | else |
0a1b45a2 | 10533 | return true; |
cb2366c1 EBM |
10534 | |
10535 | case NT_PPC_TM_CFPR: | |
10536 | if (note->namesz == 6 | |
4b24dd1a AM |
10537 | && strcmp (note->namedata, "LINUX") == 0) |
10538 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10539 | else |
0a1b45a2 | 10540 | return true; |
cb2366c1 EBM |
10541 | |
10542 | case NT_PPC_TM_CVMX: | |
10543 | if (note->namesz == 6 | |
4b24dd1a AM |
10544 | && strcmp (note->namedata, "LINUX") == 0) |
10545 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10546 | else |
0a1b45a2 | 10547 | return true; |
cb2366c1 EBM |
10548 | |
10549 | case NT_PPC_TM_CVSX: | |
10550 | if (note->namesz == 6 | |
4b24dd1a AM |
10551 | && strcmp (note->namedata, "LINUX") == 0) |
10552 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10553 | else |
0a1b45a2 | 10554 | return true; |
cb2366c1 EBM |
10555 | |
10556 | case NT_PPC_TM_SPR: | |
10557 | if (note->namesz == 6 | |
4b24dd1a AM |
10558 | && strcmp (note->namedata, "LINUX") == 0) |
10559 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10560 | else |
0a1b45a2 | 10561 | return true; |
cb2366c1 EBM |
10562 | |
10563 | case NT_PPC_TM_CTAR: | |
10564 | if (note->namesz == 6 | |
4b24dd1a AM |
10565 | && strcmp (note->namedata, "LINUX") == 0) |
10566 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10567 | else |
0a1b45a2 | 10568 | return true; |
cb2366c1 EBM |
10569 | |
10570 | case NT_PPC_TM_CPPR: | |
10571 | if (note->namesz == 6 | |
4b24dd1a AM |
10572 | && strcmp (note->namedata, "LINUX") == 0) |
10573 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10574 | else |
0a1b45a2 | 10575 | return true; |
cb2366c1 EBM |
10576 | |
10577 | case NT_PPC_TM_CDSCR: | |
10578 | if (note->namesz == 6 | |
4b24dd1a AM |
10579 | && strcmp (note->namedata, "LINUX") == 0) |
10580 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10581 | else |
0a1b45a2 | 10582 | return true; |
cb2366c1 | 10583 | |
0675e188 UW |
10584 | case NT_S390_HIGH_GPRS: |
10585 | if (note->namesz == 6 | |
07d6d2b8 AM |
10586 | && strcmp (note->namedata, "LINUX") == 0) |
10587 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10588 | else |
0a1b45a2 | 10589 | return true; |
0675e188 | 10590 | |
d7eeb400 MS |
10591 | case NT_S390_TIMER: |
10592 | if (note->namesz == 6 | |
07d6d2b8 AM |
10593 | && strcmp (note->namedata, "LINUX") == 0) |
10594 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10595 | else |
0a1b45a2 | 10596 | return true; |
d7eeb400 MS |
10597 | |
10598 | case NT_S390_TODCMP: | |
10599 | if (note->namesz == 6 | |
07d6d2b8 AM |
10600 | && strcmp (note->namedata, "LINUX") == 0) |
10601 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10602 | else |
0a1b45a2 | 10603 | return true; |
d7eeb400 MS |
10604 | |
10605 | case NT_S390_TODPREG: | |
10606 | if (note->namesz == 6 | |
07d6d2b8 AM |
10607 | && strcmp (note->namedata, "LINUX") == 0) |
10608 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10609 | else |
0a1b45a2 | 10610 | return true; |
d7eeb400 MS |
10611 | |
10612 | case NT_S390_CTRS: | |
10613 | if (note->namesz == 6 | |
07d6d2b8 AM |
10614 | && strcmp (note->namedata, "LINUX") == 0) |
10615 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10616 | else |
0a1b45a2 | 10617 | return true; |
d7eeb400 MS |
10618 | |
10619 | case NT_S390_PREFIX: | |
10620 | if (note->namesz == 6 | |
07d6d2b8 AM |
10621 | && strcmp (note->namedata, "LINUX") == 0) |
10622 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10623 | else |
0a1b45a2 | 10624 | return true; |
d7eeb400 | 10625 | |
355b81d9 UW |
10626 | case NT_S390_LAST_BREAK: |
10627 | if (note->namesz == 6 | |
07d6d2b8 AM |
10628 | && strcmp (note->namedata, "LINUX") == 0) |
10629 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10630 | else |
0a1b45a2 | 10631 | return true; |
355b81d9 UW |
10632 | |
10633 | case NT_S390_SYSTEM_CALL: | |
10634 | if (note->namesz == 6 | |
07d6d2b8 AM |
10635 | && strcmp (note->namedata, "LINUX") == 0) |
10636 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10637 | else |
0a1b45a2 | 10638 | return true; |
355b81d9 | 10639 | |
abb3f6cc NC |
10640 | case NT_S390_TDB: |
10641 | if (note->namesz == 6 | |
07d6d2b8 AM |
10642 | && strcmp (note->namedata, "LINUX") == 0) |
10643 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10644 | else |
0a1b45a2 | 10645 | return true; |
abb3f6cc | 10646 | |
4ef9f41a AA |
10647 | case NT_S390_VXRS_LOW: |
10648 | if (note->namesz == 6 | |
10649 | && strcmp (note->namedata, "LINUX") == 0) | |
10650 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10651 | else | |
0a1b45a2 | 10652 | return true; |
4ef9f41a AA |
10653 | |
10654 | case NT_S390_VXRS_HIGH: | |
10655 | if (note->namesz == 6 | |
10656 | && strcmp (note->namedata, "LINUX") == 0) | |
10657 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10658 | else | |
0a1b45a2 | 10659 | return true; |
4ef9f41a | 10660 | |
88ab90e8 AA |
10661 | case NT_S390_GS_CB: |
10662 | if (note->namesz == 6 | |
10663 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10664 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 | 10665 | else |
0a1b45a2 | 10666 | return true; |
88ab90e8 AA |
10667 | |
10668 | case NT_S390_GS_BC: | |
10669 | if (note->namesz == 6 | |
10670 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10671 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 | 10672 | else |
0a1b45a2 | 10673 | return true; |
88ab90e8 | 10674 | |
27456742 AK |
10675 | case NT_ARC_V2: |
10676 | if (note->namesz == 6 | |
10677 | && strcmp (note->namedata, "LINUX") == 0) | |
10678 | return elfcore_grok_arc_v2 (abfd, note); | |
10679 | else | |
0a1b45a2 | 10680 | return true; |
27456742 | 10681 | |
faa9a424 UW |
10682 | case NT_ARM_VFP: |
10683 | if (note->namesz == 6 | |
10684 | && strcmp (note->namedata, "LINUX") == 0) | |
10685 | return elfcore_grok_arm_vfp (abfd, note); | |
10686 | else | |
0a1b45a2 | 10687 | return true; |
faa9a424 | 10688 | |
652451f8 YZ |
10689 | case NT_ARM_TLS: |
10690 | if (note->namesz == 6 | |
10691 | && strcmp (note->namedata, "LINUX") == 0) | |
10692 | return elfcore_grok_aarch_tls (abfd, note); | |
10693 | else | |
0a1b45a2 | 10694 | return true; |
652451f8 YZ |
10695 | |
10696 | case NT_ARM_HW_BREAK: | |
10697 | if (note->namesz == 6 | |
10698 | && strcmp (note->namedata, "LINUX") == 0) | |
10699 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10700 | else | |
0a1b45a2 | 10701 | return true; |
652451f8 YZ |
10702 | |
10703 | case NT_ARM_HW_WATCH: | |
10704 | if (note->namesz == 6 | |
10705 | && strcmp (note->namedata, "LINUX") == 0) | |
10706 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10707 | else | |
0a1b45a2 | 10708 | return true; |
652451f8 | 10709 | |
ad1cc4e4 AH |
10710 | case NT_ARM_SVE: |
10711 | if (note->namesz == 6 | |
10712 | && strcmp (note->namedata, "LINUX") == 0) | |
10713 | return elfcore_grok_aarch_sve (abfd, note); | |
10714 | else | |
0a1b45a2 | 10715 | return true; |
ad1cc4e4 | 10716 | |
e6c3b5bf AH |
10717 | case NT_ARM_PAC_MASK: |
10718 | if (note->namesz == 6 | |
10719 | && strcmp (note->namedata, "LINUX") == 0) | |
10720 | return elfcore_grok_aarch_pauth (abfd, note); | |
10721 | else | |
0a1b45a2 | 10722 | return true; |
e6c3b5bf | 10723 | |
f0bbe8ba LM |
10724 | case NT_ARM_TAGGED_ADDR_CTRL: |
10725 | if (note->namesz == 6 | |
10726 | && strcmp (note->namedata, "LINUX") == 0) | |
10727 | return elfcore_grok_aarch_mte (abfd, note); | |
10728 | else | |
10729 | return true; | |
10730 | ||
b63a5e38 AB |
10731 | case NT_GDB_TDESC: |
10732 | if (note->namesz == 4 | |
10733 | && strcmp (note->namedata, "GDB") == 0) | |
10734 | return elfcore_grok_gdb_tdesc (abfd, note); | |
10735 | else | |
0a1b45a2 | 10736 | return true; |
b63a5e38 | 10737 | |
db6092f3 AB |
10738 | case NT_RISCV_CSR: |
10739 | if (note->namesz == 4 | |
10740 | && strcmp (note->namedata, "GDB") == 0) | |
10741 | return elfcore_grok_riscv_csr (abfd, note); | |
10742 | else | |
0a1b45a2 | 10743 | return true; |
db6092f3 | 10744 | |
e214f8db | 10745 | case NT_LARCH_CPUCFG: |
10746 | if (note->namesz == 6 | |
10747 | && strcmp (note->namedata, "LINUX") == 0) | |
10748 | return elfcore_grok_loongarch_cpucfg (abfd, note); | |
10749 | else | |
10750 | return true; | |
10751 | ||
10752 | case NT_LARCH_LBT: | |
10753 | if (note->namesz == 6 | |
10754 | && strcmp (note->namedata, "LINUX") == 0) | |
10755 | return elfcore_grok_loongarch_lbt (abfd, note); | |
10756 | else | |
10757 | return true; | |
10758 | ||
10759 | case NT_LARCH_LSX: | |
10760 | if (note->namesz == 6 | |
10761 | && strcmp (note->namedata, "LINUX") == 0) | |
10762 | return elfcore_grok_loongarch_lsx (abfd, note); | |
10763 | else | |
10764 | return true; | |
10765 | ||
10766 | case NT_LARCH_LASX: | |
10767 | if (note->namesz == 6 | |
10768 | && strcmp (note->namedata, "LINUX") == 0) | |
10769 | return elfcore_grok_loongarch_lasx (abfd, note); | |
10770 | else | |
10771 | return true; | |
10772 | ||
252b5132 RH |
10773 | case NT_PRPSINFO: |
10774 | case NT_PSINFO: | |
bb0082d6 AM |
10775 | if (bed->elf_backend_grok_psinfo) |
10776 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
0a1b45a2 | 10777 | return true; |
bb0082d6 | 10778 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10779 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10780 | #else |
0a1b45a2 | 10781 | return true; |
252b5132 | 10782 | #endif |
3333a7c3 RM |
10783 | |
10784 | case NT_AUXV: | |
58e07198 | 10785 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10786 | |
451b7c33 TT |
10787 | case NT_FILE: |
10788 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10789 | note); | |
10790 | ||
9015683b TT |
10791 | case NT_SIGINFO: |
10792 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10793 | note); | |
5b2c414d | 10794 | |
252b5132 RH |
10795 | } |
10796 | } | |
10797 | ||
0a1b45a2 | 10798 | static bool |
718175fa JK |
10799 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) |
10800 | { | |
c74f7d1c | 10801 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10802 | |
10803 | if (note->descsz == 0) | |
0a1b45a2 | 10804 | return false; |
30e8ee25 | 10805 | |
c74f7d1c JT |
10806 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10807 | if (build_id == NULL) | |
0a1b45a2 | 10808 | return false; |
718175fa | 10809 | |
c74f7d1c JT |
10810 | build_id->size = note->descsz; |
10811 | memcpy (build_id->data, note->descdata, note->descsz); | |
10812 | abfd->build_id = build_id; | |
718175fa | 10813 | |
0a1b45a2 | 10814 | return true; |
718175fa JK |
10815 | } |
10816 | ||
0a1b45a2 | 10817 | static bool |
718175fa JK |
10818 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) |
10819 | { | |
10820 | switch (note->type) | |
10821 | { | |
10822 | default: | |
0a1b45a2 | 10823 | return true; |
718175fa | 10824 | |
46bed679 L |
10825 | case NT_GNU_PROPERTY_TYPE_0: |
10826 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10827 | ||
718175fa JK |
10828 | case NT_GNU_BUILD_ID: |
10829 | return elfobj_grok_gnu_build_id (abfd, note); | |
10830 | } | |
10831 | } | |
10832 | ||
0a1b45a2 | 10833 | static bool |
e21e5835 NC |
10834 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) |
10835 | { | |
10836 | struct sdt_note *cur = | |
7a6e0d89 AM |
10837 | (struct sdt_note *) bfd_alloc (abfd, |
10838 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10839 | |
10840 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10841 | cur->size = (bfd_size_type) note->descsz; | |
10842 | memcpy (cur->data, note->descdata, note->descsz); | |
10843 | ||
10844 | elf_tdata (abfd)->sdt_note_head = cur; | |
10845 | ||
0a1b45a2 | 10846 | return true; |
e21e5835 NC |
10847 | } |
10848 | ||
0a1b45a2 | 10849 | static bool |
e21e5835 NC |
10850 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) |
10851 | { | |
10852 | switch (note->type) | |
10853 | { | |
10854 | case NT_STAPSDT: | |
10855 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10856 | ||
10857 | default: | |
0a1b45a2 | 10858 | return true; |
e21e5835 NC |
10859 | } |
10860 | } | |
10861 | ||
0a1b45a2 | 10862 | static bool |
aa1ed4a9 JB |
10863 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) |
10864 | { | |
10865 | size_t offset; | |
10866 | ||
b5430a3c | 10867 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10868 | { |
b5430a3c | 10869 | case ELFCLASS32: |
0064d223 | 10870 | if (note->descsz < 108) |
0a1b45a2 | 10871 | return false; |
aa1ed4a9 JB |
10872 | break; |
10873 | ||
b5430a3c | 10874 | case ELFCLASS64: |
0064d223 | 10875 | if (note->descsz < 120) |
0a1b45a2 | 10876 | return false; |
aa1ed4a9 JB |
10877 | break; |
10878 | ||
10879 | default: | |
0a1b45a2 | 10880 | return false; |
aa1ed4a9 JB |
10881 | } |
10882 | ||
0064d223 JB |
10883 | /* Check for version 1 in pr_version. */ |
10884 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10885 | return false; |
80a04378 | 10886 | |
0064d223 JB |
10887 | offset = 4; |
10888 | ||
10889 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10890 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10891 | offset += 4; |
10892 | else | |
10893 | { | |
10894 | offset += 4; /* Padding before pr_psinfosz. */ | |
10895 | offset += 8; | |
10896 | } | |
10897 | ||
aa1ed4a9 JB |
10898 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10899 | elf_tdata (abfd)->core->program | |
10900 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10901 | offset += 17; | |
10902 | ||
10903 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10904 | elf_tdata (abfd)->core->command | |
10905 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10906 | offset += 81; |
10907 | ||
10908 | /* Padding before pr_pid. */ | |
10909 | offset += 2; | |
10910 | ||
10911 | /* The pr_pid field was added in version "1a". */ | |
10912 | if (note->descsz < offset + 4) | |
0a1b45a2 | 10913 | return true; |
0064d223 JB |
10914 | |
10915 | elf_tdata (abfd)->core->pid | |
10916 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 | 10917 | |
0a1b45a2 | 10918 | return true; |
aa1ed4a9 JB |
10919 | } |
10920 | ||
0a1b45a2 | 10921 | static bool |
aa1ed4a9 JB |
10922 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) |
10923 | { | |
10924 | size_t offset; | |
10925 | size_t size; | |
24d3e51b | 10926 | size_t min_size; |
aa1ed4a9 | 10927 | |
24d3e51b NC |
10928 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10929 | Also compute minimum size of this note. */ | |
b5430a3c | 10930 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10931 | { |
b5430a3c | 10932 | case ELFCLASS32: |
24d3e51b NC |
10933 | offset = 4 + 4; |
10934 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10935 | break; |
10936 | ||
b5430a3c | 10937 | case ELFCLASS64: |
24d3e51b NC |
10938 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10939 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10940 | break; |
10941 | ||
10942 | default: | |
0a1b45a2 | 10943 | return false; |
aa1ed4a9 JB |
10944 | } |
10945 | ||
24d3e51b | 10946 | if (note->descsz < min_size) |
0a1b45a2 | 10947 | return false; |
24d3e51b NC |
10948 | |
10949 | /* Check for version 1 in pr_version. */ | |
10950 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10951 | return false; |
aa1ed4a9 | 10952 | |
24d3e51b NC |
10953 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10954 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10955 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10956 | { |
10957 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10958 | offset += 4 * 2; | |
10959 | } | |
b5430a3c | 10960 | else |
24d3e51b NC |
10961 | { |
10962 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10963 | offset += 8 * 2; | |
10964 | } | |
aa1ed4a9 | 10965 | |
24d3e51b | 10966 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10967 | offset += 4; |
10968 | ||
24d3e51b | 10969 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10970 | if (elf_tdata (abfd)->core->signal == 0) |
10971 | elf_tdata (abfd)->core->signal | |
10972 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10973 | offset += 4; | |
10974 | ||
24d3e51b | 10975 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10976 | elf_tdata (abfd)->core->lwpid |
10977 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10978 | offset += 4; | |
10979 | ||
24d3e51b | 10980 | /* Padding before pr_reg. */ |
b5430a3c | 10981 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10982 | offset += 4; |
10983 | ||
24d3e51b NC |
10984 | /* Make sure that there is enough data remaining in the note. */ |
10985 | if ((note->descsz - offset) < size) | |
0a1b45a2 | 10986 | return false; |
24d3e51b | 10987 | |
aa1ed4a9 JB |
10988 | /* Make a ".reg/999" section and a ".reg" section. */ |
10989 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10990 | size, note->descpos + offset); | |
10991 | } | |
10992 | ||
0a1b45a2 | 10993 | static bool |
aa1ed4a9 JB |
10994 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) |
10995 | { | |
544c67cd JB |
10996 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10997 | ||
aa1ed4a9 JB |
10998 | switch (note->type) |
10999 | { | |
11000 | case NT_PRSTATUS: | |
544c67cd JB |
11001 | if (bed->elf_backend_grok_freebsd_prstatus) |
11002 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
0a1b45a2 | 11003 | return true; |
aa1ed4a9 JB |
11004 | return elfcore_grok_freebsd_prstatus (abfd, note); |
11005 | ||
11006 | case NT_FPREGSET: | |
11007 | return elfcore_grok_prfpreg (abfd, note); | |
11008 | ||
11009 | case NT_PRPSINFO: | |
11010 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
11011 | ||
11012 | case NT_FREEBSD_THRMISC: | |
e330d4c0 | 11013 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); |
aa1ed4a9 | 11014 | |
ddb2bbcf JB |
11015 | case NT_FREEBSD_PROCSTAT_PROC: |
11016 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
11017 | note); | |
11018 | ||
11019 | case NT_FREEBSD_PROCSTAT_FILES: | |
11020 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
11021 | note); | |
11022 | ||
11023 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
11024 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
11025 | note); | |
11026 | ||
3350c5f5 | 11027 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 11028 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 11029 | |
aa1ed4a9 | 11030 | case NT_X86_XSTATE: |
e330d4c0 | 11031 | return elfcore_grok_xstatereg (abfd, note); |
aa1ed4a9 | 11032 | |
e6f3b9c3 JB |
11033 | case NT_FREEBSD_PTLWPINFO: |
11034 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
11035 | note); | |
11036 | ||
6d5be5d6 JB |
11037 | case NT_ARM_VFP: |
11038 | return elfcore_grok_arm_vfp (abfd, note); | |
11039 | ||
aa1ed4a9 | 11040 | default: |
0a1b45a2 | 11041 | return true; |
aa1ed4a9 JB |
11042 | } |
11043 | } | |
11044 | ||
0a1b45a2 | 11045 | static bool |
217aa764 | 11046 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
11047 | { |
11048 | char *cp; | |
11049 | ||
11050 | cp = strchr (note->namedata, '@'); | |
11051 | if (cp != NULL) | |
11052 | { | |
d2b64500 | 11053 | *lwpidp = atoi(cp + 1); |
0a1b45a2 | 11054 | return true; |
50b2bdb7 | 11055 | } |
0a1b45a2 | 11056 | return false; |
50b2bdb7 AM |
11057 | } |
11058 | ||
0a1b45a2 | 11059 | static bool |
217aa764 | 11060 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 11061 | { |
80a04378 | 11062 | if (note->descsz <= 0x7c + 31) |
0a1b45a2 | 11063 | return false; |
80a04378 | 11064 | |
50b2bdb7 | 11065 | /* Signal number at offset 0x08. */ |
228e534f | 11066 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
11067 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11068 | ||
11069 | /* Process ID at offset 0x50. */ | |
228e534f | 11070 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
11071 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
11072 | ||
11073 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 11074 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
11075 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
11076 | ||
7720ba9f MK |
11077 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
11078 | note); | |
50b2bdb7 AM |
11079 | } |
11080 | ||
0a1b45a2 | 11081 | static bool |
217aa764 | 11082 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
11083 | { |
11084 | int lwp; | |
11085 | ||
11086 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 11087 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 11088 | |
58e07198 | 11089 | switch (note->type) |
50b2bdb7 | 11090 | { |
58e07198 | 11091 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 11092 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
11093 | find this note before any of the others, which is fine, |
11094 | since the kernel writes this note out first when it | |
11095 | creates a core file. */ | |
50b2bdb7 | 11096 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
11097 | case NT_NETBSDCORE_AUXV: |
11098 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
11099 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
06d949ec KR |
11100 | case NT_NETBSDCORE_LWPSTATUS: |
11101 | return elfcore_make_note_pseudosection (abfd, | |
11102 | ".note.netbsdcore.lwpstatus", | |
11103 | note); | |
58e07198 CZ |
11104 | default: |
11105 | break; | |
50b2bdb7 AM |
11106 | } |
11107 | ||
06d949ec | 11108 | /* As of March 2020 there are no other machine-independent notes |
b4db1224 JT |
11109 | defined for NetBSD core files. If the note type is less |
11110 | than the start of the machine-dependent note types, we don't | |
11111 | understand it. */ | |
47d9a591 | 11112 | |
b4db1224 | 11113 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
0a1b45a2 | 11114 | return true; |
50b2bdb7 AM |
11115 | |
11116 | ||
11117 | switch (bfd_get_arch (abfd)) | |
11118 | { | |
08a40648 AM |
11119 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
11120 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 | 11121 | |
015ec493 | 11122 | case bfd_arch_aarch64: |
50b2bdb7 AM |
11123 | case bfd_arch_alpha: |
11124 | case bfd_arch_sparc: | |
11125 | switch (note->type) | |
08a40648 AM |
11126 | { |
11127 | case NT_NETBSDCORE_FIRSTMACH+0: | |
11128 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11129 | |
08a40648 AM |
11130 | case NT_NETBSDCORE_FIRSTMACH+2: |
11131 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11132 | |
08a40648 | 11133 | default: |
0a1b45a2 | 11134 | return true; |
08a40648 | 11135 | } |
50b2bdb7 | 11136 | |
58e07198 CZ |
11137 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
11138 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
11139 | structure which lacks GBR. */ | |
11140 | ||
11141 | case bfd_arch_sh: | |
11142 | switch (note->type) | |
11143 | { | |
11144 | case NT_NETBSDCORE_FIRSTMACH+3: | |
11145 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11146 | ||
11147 | case NT_NETBSDCORE_FIRSTMACH+5: | |
11148 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11149 | ||
11150 | default: | |
0a1b45a2 | 11151 | return true; |
58e07198 CZ |
11152 | } |
11153 | ||
08a40648 AM |
11154 | /* On all other arch's, PT_GETREGS == mach+1 and |
11155 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
11156 | |
11157 | default: | |
11158 | switch (note->type) | |
08a40648 AM |
11159 | { |
11160 | case NT_NETBSDCORE_FIRSTMACH+1: | |
11161 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11162 | |
08a40648 AM |
11163 | case NT_NETBSDCORE_FIRSTMACH+3: |
11164 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11165 | |
08a40648 | 11166 | default: |
0a1b45a2 | 11167 | return true; |
08a40648 | 11168 | } |
50b2bdb7 AM |
11169 | } |
11170 | /* NOTREACHED */ | |
11171 | } | |
11172 | ||
0a1b45a2 | 11173 | static bool |
67cc5033 MK |
11174 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
11175 | { | |
80a04378 | 11176 | if (note->descsz <= 0x48 + 31) |
0a1b45a2 | 11177 | return false; |
80a04378 | 11178 | |
67cc5033 | 11179 | /* Signal number at offset 0x08. */ |
228e534f | 11180 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
11181 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11182 | ||
11183 | /* Process ID at offset 0x20. */ | |
228e534f | 11184 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
11185 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
11186 | ||
11187 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 11188 | elf_tdata (abfd)->core->command |
67cc5033 MK |
11189 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
11190 | ||
0a1b45a2 | 11191 | return true; |
67cc5033 MK |
11192 | } |
11193 | ||
6420dd27 LB |
11194 | /* Processes Solaris's process status note. |
11195 | sig_off ~ offsetof(prstatus_t, pr_cursig) | |
11196 | pid_off ~ offsetof(prstatus_t, pr_pid) | |
11197 | lwpid_off ~ offsetof(prstatus_t, pr_who) | |
11198 | gregset_size ~ sizeof(gregset_t) | |
11199 | gregset_offset ~ offsetof(prstatus_t, pr_reg) */ | |
11200 | ||
11201 | static bool | |
11202 | elfcore_grok_solaris_prstatus (bfd *abfd, Elf_Internal_Note* note, int sig_off, | |
11203 | int pid_off, int lwpid_off, size_t gregset_size, | |
11204 | size_t gregset_offset) | |
11205 | { | |
11206 | asection *sect = NULL; | |
11207 | elf_tdata (abfd)->core->signal | |
11208 | = bfd_get_16 (abfd, note->descdata + sig_off); | |
11209 | elf_tdata (abfd)->core->pid | |
11210 | = bfd_get_32 (abfd, note->descdata + pid_off); | |
11211 | elf_tdata (abfd)->core->lwpid | |
11212 | = bfd_get_32 (abfd, note->descdata + lwpid_off); | |
11213 | ||
11214 | sect = bfd_get_section_by_name (abfd, ".reg"); | |
11215 | if (sect != NULL) | |
11216 | sect->size = gregset_size; | |
11217 | ||
11218 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", gregset_size, | |
11219 | note->descpos + gregset_offset); | |
11220 | } | |
11221 | ||
11222 | /* Gets program and arguments from a core. | |
11223 | prog_off ~ offsetof(prpsinfo | psinfo_t, pr_fname) | |
11224 | comm_off ~ offsetof(prpsinfo | psinfo_t, pr_psargs) */ | |
11225 | ||
11226 | static bool | |
11227 | elfcore_grok_solaris_info(bfd *abfd, Elf_Internal_Note* note, | |
11228 | int prog_off, int comm_off) | |
11229 | { | |
11230 | elf_tdata (abfd)->core->program | |
11231 | = _bfd_elfcore_strndup (abfd, note->descdata + prog_off, 16); | |
11232 | elf_tdata (abfd)->core->command | |
11233 | = _bfd_elfcore_strndup (abfd, note->descdata + comm_off, 80); | |
11234 | ||
11235 | return true; | |
11236 | } | |
11237 | ||
11238 | /* Processes Solaris's LWP status note. | |
11239 | gregset_size ~ sizeof(gregset_t) | |
11240 | gregset_off ~ offsetof(lwpstatus_t, pr_reg) | |
11241 | fpregset_size ~ sizeof(fpregset_t) | |
11242 | fpregset_off ~ offsetof(lwpstatus_t, pr_fpreg) */ | |
11243 | ||
11244 | static bool | |
11245 | elfcore_grok_solaris_lwpstatus (bfd *abfd, Elf_Internal_Note* note, | |
11246 | size_t gregset_size, int gregset_off, | |
11247 | size_t fpregset_size, int fpregset_off) | |
11248 | { | |
11249 | asection *sect = NULL; | |
11250 | char reg2_section_name[16] = { 0 }; | |
11251 | ||
11252 | (void) snprintf (reg2_section_name, 16, "%s/%i", ".reg2", | |
11253 | elf_tdata (abfd)->core->lwpid); | |
11254 | ||
11255 | /* offsetof(lwpstatus_t, pr_lwpid) */ | |
11256 | elf_tdata (abfd)->core->lwpid | |
11257 | = bfd_get_32 (abfd, note->descdata + 4); | |
11258 | /* offsetof(lwpstatus_t, pr_cursig) */ | |
11259 | elf_tdata (abfd)->core->signal | |
11260 | = bfd_get_16 (abfd, note->descdata + 12); | |
11261 | ||
11262 | sect = bfd_get_section_by_name (abfd, ".reg"); | |
11263 | if (sect != NULL) | |
11264 | sect->size = gregset_size; | |
11265 | else if (!_bfd_elfcore_make_pseudosection (abfd, ".reg", gregset_size, | |
11266 | note->descpos + gregset_off)) | |
11267 | return false; | |
11268 | ||
11269 | sect = bfd_get_section_by_name (abfd, reg2_section_name); | |
11270 | if (sect != NULL) | |
11271 | { | |
11272 | sect->size = fpregset_size; | |
11273 | sect->filepos = note->descpos + fpregset_off; | |
11274 | sect->alignment_power = 2; | |
11275 | } | |
11276 | else if (!_bfd_elfcore_make_pseudosection (abfd, ".reg2", fpregset_size, | |
11277 | note->descpos + fpregset_off)) | |
11278 | return false; | |
11279 | ||
11280 | return true; | |
11281 | } | |
11282 | ||
11283 | static bool | |
11284 | elfcore_grok_solaris_note_impl (bfd *abfd, Elf_Internal_Note *note) | |
11285 | { | |
11286 | if (note == NULL) | |
11287 | return false; | |
11288 | ||
11289 | /* core files are identified as 32- or 64-bit, SPARC or x86, | |
11290 | by the size of the descsz which matches the sizeof() | |
11291 | the type appropriate for that note type (e.g., prstatus_t for | |
11292 | SOLARIS_NT_PRSTATUS) for the corresponding architecture | |
11293 | on Solaris. The core file bitness may differ from the bitness of | |
11294 | gdb itself, so fixed values are used instead of sizeof(). | |
11295 | Appropriate fixed offsets are also used to obtain data from | |
11296 | the note. */ | |
11297 | ||
11298 | switch ((int) note->type) | |
11299 | { | |
11300 | case SOLARIS_NT_PRSTATUS: | |
11301 | switch (note->descsz) | |
11302 | { | |
11303 | case 508: /* sizeof(prstatus_t) SPARC 32-bit */ | |
11304 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11305 | 136, 216, 308, 152, 356); | |
11306 | case 904: /* sizeof(prstatus_t) SPARC 64-bit */ | |
11307 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11308 | 264, 360, 520, 304, 600); | |
11309 | case 432: /* sizeof(prstatus_t) Intel 32-bit */ | |
11310 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11311 | 136, 216, 308, 76, 356); | |
11312 | case 824: /* sizeof(prstatus_t) Intel 64-bit */ | |
11313 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11314 | 264, 360, 520, 224, 600); | |
11315 | default: | |
11316 | return true; | |
11317 | } | |
11318 | ||
11319 | case SOLARIS_NT_PSINFO: | |
11320 | case SOLARIS_NT_PRPSINFO: | |
11321 | switch (note->descsz) | |
11322 | { | |
11323 | case 260: /* sizeof(prpsinfo_t) SPARC and Intel 32-bit */ | |
11324 | return elfcore_grok_solaris_info(abfd, note, 84, 100); | |
11325 | case 328: /* sizeof(prpsinfo_t) SPARC and Intel 64-bit */ | |
11326 | return elfcore_grok_solaris_info(abfd, note, 120, 136); | |
11327 | case 360: /* sizeof(psinfo_t) SPARC and Intel 32-bit */ | |
11328 | return elfcore_grok_solaris_info(abfd, note, 88, 104); | |
11329 | case 440: /* sizeof(psinfo_t) SPARC and Intel 64-bit */ | |
11330 | return elfcore_grok_solaris_info(abfd, note, 136, 152); | |
11331 | default: | |
11332 | return true; | |
11333 | } | |
11334 | ||
11335 | case SOLARIS_NT_LWPSTATUS: | |
11336 | switch (note->descsz) | |
11337 | { | |
11338 | case 896: /* sizeof(lwpstatus_t) SPARC 32-bit */ | |
11339 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11340 | 152, 344, 400, 496); | |
11341 | case 1392: /* sizeof(lwpstatus_t) SPARC 64-bit */ | |
11342 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11343 | 304, 544, 544, 848); | |
11344 | case 800: /* sizeof(lwpstatus_t) Intel 32-bit */ | |
11345 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11346 | 76, 344, 380, 420); | |
11347 | case 1296: /* sizeof(lwpstatus_t) Intel 64-bit */ | |
11348 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11349 | 224, 544, 528, 768); | |
11350 | default: | |
11351 | return true; | |
11352 | } | |
11353 | ||
11354 | case SOLARIS_NT_LWPSINFO: | |
11355 | /* sizeof(lwpsinfo_t) on 32- and 64-bit, respectively */ | |
11356 | if (note->descsz == 128 || note->descsz == 152) | |
11357 | elf_tdata (abfd)->core->lwpid = | |
11358 | bfd_get_32 (abfd, note->descdata + 4); | |
11359 | break; | |
11360 | ||
11361 | default: | |
11362 | break; | |
11363 | } | |
11364 | ||
11365 | return true; | |
11366 | } | |
11367 | ||
11368 | /* For name starting with "CORE" this may be either a Solaris | |
11369 | core file or a gdb-generated core file. Do Solaris-specific | |
11370 | processing on selected note types first with | |
11371 | elfcore_grok_solaris_note(), then process the note | |
11372 | in elfcore_grok_note(). */ | |
11373 | ||
11374 | static bool | |
11375 | elfcore_grok_solaris_note (bfd *abfd, Elf_Internal_Note *note) | |
11376 | { | |
11377 | if (!elfcore_grok_solaris_note_impl (abfd, note)) | |
11378 | return false; | |
11379 | ||
11380 | return elfcore_grok_note (abfd, note); | |
11381 | } | |
11382 | ||
0a1b45a2 | 11383 | static bool |
67cc5033 MK |
11384 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) |
11385 | { | |
11386 | if (note->type == NT_OPENBSD_PROCINFO) | |
11387 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
11388 | ||
11389 | if (note->type == NT_OPENBSD_REGS) | |
11390 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11391 | ||
11392 | if (note->type == NT_OPENBSD_FPREGS) | |
11393 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11394 | ||
11395 | if (note->type == NT_OPENBSD_XFPREGS) | |
11396 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
11397 | ||
11398 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 11399 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
11400 | |
11401 | if (note->type == NT_OPENBSD_WCOOKIE) | |
11402 | { | |
11403 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
11404 | SEC_HAS_CONTENTS); | |
11405 | ||
11406 | if (sect == NULL) | |
0a1b45a2 | 11407 | return false; |
67cc5033 MK |
11408 | sect->size = note->descsz; |
11409 | sect->filepos = note->descpos; | |
11410 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
11411 | ||
0a1b45a2 | 11412 | return true; |
67cc5033 MK |
11413 | } |
11414 | ||
0a1b45a2 | 11415 | return true; |
67cc5033 MK |
11416 | } |
11417 | ||
0a1b45a2 | 11418 | static bool |
d3fd4074 | 11419 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
11420 | { |
11421 | void *ddata = note->descdata; | |
11422 | char buf[100]; | |
11423 | char *name; | |
11424 | asection *sect; | |
f8843e87 AM |
11425 | short sig; |
11426 | unsigned flags; | |
07c6e936 | 11427 | |
80a04378 | 11428 | if (note->descsz < 16) |
0a1b45a2 | 11429 | return false; |
80a04378 | 11430 | |
07c6e936 | 11431 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 11432 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 11433 | |
f8843e87 AM |
11434 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
11435 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
11436 | ||
11437 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
11438 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
11439 | |
11440 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
11441 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
11442 | { | |
228e534f AM |
11443 | elf_tdata (abfd)->core->signal = sig; |
11444 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 11445 | } |
07c6e936 | 11446 | |
f8843e87 AM |
11447 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
11448 | do not come from signals so we make sure we set the current | |
11449 | thread just in case. */ | |
11450 | if (flags & 0x00000080) | |
228e534f | 11451 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
11452 | |
11453 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 11454 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 11455 | |
a50b1753 | 11456 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11457 | if (name == NULL) |
0a1b45a2 | 11458 | return false; |
07c6e936 NC |
11459 | strcpy (name, buf); |
11460 | ||
117ed4f8 | 11461 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11462 | if (sect == NULL) |
0a1b45a2 | 11463 | return false; |
07c6e936 | 11464 | |
07d6d2b8 AM |
11465 | sect->size = note->descsz; |
11466 | sect->filepos = note->descpos; | |
07c6e936 NC |
11467 | sect->alignment_power = 2; |
11468 | ||
11469 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
11470 | } | |
11471 | ||
0a1b45a2 | 11472 | static bool |
d69f560c KW |
11473 | elfcore_grok_nto_regs (bfd *abfd, |
11474 | Elf_Internal_Note *note, | |
d3fd4074 | 11475 | long tid, |
d69f560c | 11476 | char *base) |
07c6e936 NC |
11477 | { |
11478 | char buf[100]; | |
11479 | char *name; | |
11480 | asection *sect; | |
11481 | ||
d69f560c | 11482 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 11483 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 11484 | |
a50b1753 | 11485 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11486 | if (name == NULL) |
0a1b45a2 | 11487 | return false; |
07c6e936 NC |
11488 | strcpy (name, buf); |
11489 | ||
117ed4f8 | 11490 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11491 | if (sect == NULL) |
0a1b45a2 | 11492 | return false; |
07c6e936 | 11493 | |
07d6d2b8 AM |
11494 | sect->size = note->descsz; |
11495 | sect->filepos = note->descpos; | |
07c6e936 NC |
11496 | sect->alignment_power = 2; |
11497 | ||
f8843e87 | 11498 | /* This is the current thread. */ |
228e534f | 11499 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 11500 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 | 11501 | |
0a1b45a2 | 11502 | return true; |
07c6e936 NC |
11503 | } |
11504 | ||
11505 | #define BFD_QNT_CORE_INFO 7 | |
11506 | #define BFD_QNT_CORE_STATUS 8 | |
11507 | #define BFD_QNT_CORE_GREG 9 | |
11508 | #define BFD_QNT_CORE_FPREG 10 | |
11509 | ||
0a1b45a2 | 11510 | static bool |
217aa764 | 11511 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
11512 | { |
11513 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 11514 | tid from the previous call to pass down to the next gregs |
07c6e936 | 11515 | function. */ |
d3fd4074 | 11516 | static long tid = 1; |
07c6e936 NC |
11517 | |
11518 | switch (note->type) | |
11519 | { | |
d69f560c KW |
11520 | case BFD_QNT_CORE_INFO: |
11521 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
11522 | case BFD_QNT_CORE_STATUS: | |
11523 | return elfcore_grok_nto_status (abfd, note, &tid); | |
11524 | case BFD_QNT_CORE_GREG: | |
11525 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
11526 | case BFD_QNT_CORE_FPREG: | |
11527 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
11528 | default: | |
0a1b45a2 | 11529 | return true; |
07c6e936 NC |
11530 | } |
11531 | } | |
11532 | ||
0a1b45a2 | 11533 | static bool |
b15fa79e AM |
11534 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) |
11535 | { | |
11536 | char *name; | |
11537 | asection *sect; | |
11538 | size_t len; | |
11539 | ||
11540 | /* Use note name as section name. */ | |
11541 | len = note->namesz; | |
a50b1753 | 11542 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e | 11543 | if (name == NULL) |
0a1b45a2 | 11544 | return false; |
b15fa79e AM |
11545 | memcpy (name, note->namedata, len); |
11546 | name[len - 1] = '\0'; | |
11547 | ||
11548 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
11549 | if (sect == NULL) | |
0a1b45a2 | 11550 | return false; |
b15fa79e | 11551 | |
07d6d2b8 AM |
11552 | sect->size = note->descsz; |
11553 | sect->filepos = note->descpos; | |
b15fa79e AM |
11554 | sect->alignment_power = 1; |
11555 | ||
0a1b45a2 | 11556 | return true; |
b15fa79e AM |
11557 | } |
11558 | ||
7c76fa91 MS |
11559 | /* Function: elfcore_write_note |
11560 | ||
47d9a591 | 11561 | Inputs: |
a39f3346 | 11562 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
11563 | name of note |
11564 | type of note | |
11565 | data for note | |
11566 | size of data for note | |
11567 | ||
a39f3346 AM |
11568 | Writes note to end of buffer. ELF64 notes are written exactly as |
11569 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
11570 | that they ought to have 8-byte namesz and descsz field, and have | |
11571 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
11572 | ||
7c76fa91 | 11573 | Return: |
a39f3346 | 11574 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
11575 | |
11576 | char * | |
a39f3346 | 11577 | elfcore_write_note (bfd *abfd, |
217aa764 | 11578 | char *buf, |
a39f3346 | 11579 | int *bufsiz, |
217aa764 | 11580 | const char *name, |
a39f3346 | 11581 | int type, |
217aa764 | 11582 | const void *input, |
a39f3346 | 11583 | int size) |
7c76fa91 MS |
11584 | { |
11585 | Elf_External_Note *xnp; | |
d4c88bbb | 11586 | size_t namesz; |
d4c88bbb | 11587 | size_t newspace; |
a39f3346 | 11588 | char *dest; |
7c76fa91 | 11589 | |
d4c88bbb | 11590 | namesz = 0; |
d4c88bbb | 11591 | if (name != NULL) |
a39f3346 | 11592 | namesz = strlen (name) + 1; |
d4c88bbb | 11593 | |
a39f3346 | 11594 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11595 | |
a50b1753 | 11596 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11597 | if (buf == NULL) |
11598 | return buf; | |
a39f3346 | 11599 | dest = buf + *bufsiz; |
7c76fa91 MS |
11600 | *bufsiz += newspace; |
11601 | xnp = (Elf_External_Note *) dest; | |
11602 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11603 | H_PUT_32 (abfd, size, xnp->descsz); | |
11604 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11605 | dest = xnp->name; |
11606 | if (name != NULL) | |
11607 | { | |
11608 | memcpy (dest, name, namesz); | |
11609 | dest += namesz; | |
a39f3346 | 11610 | while (namesz & 3) |
d4c88bbb AM |
11611 | { |
11612 | *dest++ = '\0'; | |
a39f3346 | 11613 | ++namesz; |
d4c88bbb AM |
11614 | } |
11615 | } | |
11616 | memcpy (dest, input, size); | |
a39f3346 AM |
11617 | dest += size; |
11618 | while (size & 3) | |
11619 | { | |
11620 | *dest++ = '\0'; | |
11621 | ++size; | |
11622 | } | |
11623 | return buf; | |
7c76fa91 MS |
11624 | } |
11625 | ||
602f1657 AM |
11626 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11627 | possible string truncation. The "truncation" is not a bug. We | |
11628 | have an external representation of structs with fields that are not | |
11629 | necessarily NULL terminated and corresponding internal | |
11630 | representation fields that are one larger so that they can always | |
11631 | be NULL terminated. | |
11632 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11633 | diagnostics inside functions, giving a hard error if you try to use | |
11634 | the finer control available with later versions. | |
11635 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11636 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11637 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11638 | (*) Depending on your system header files! */ | |
d99b4b92 | 11639 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11640 | # pragma GCC diagnostic push |
11641 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11642 | #endif |
7c76fa91 | 11643 | char * |
217aa764 AM |
11644 | elfcore_write_prpsinfo (bfd *abfd, |
11645 | char *buf, | |
11646 | int *bufsiz, | |
11647 | const char *fname, | |
11648 | const char *psargs) | |
7c76fa91 | 11649 | { |
183e98be AM |
11650 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11651 | ||
11652 | if (bed->elf_backend_write_core_note != NULL) | |
11653 | { | |
11654 | char *ret; | |
11655 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11656 | NT_PRPSINFO, fname, psargs); | |
11657 | if (ret != NULL) | |
11658 | return ret; | |
11659 | } | |
7c76fa91 | 11660 | |
1f20dca5 | 11661 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11662 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11663 | if (bed->s->elfclass == ELFCLASS32) |
11664 | { | |
602f1657 | 11665 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11666 | psinfo32_t data; |
11667 | int note_type = NT_PSINFO; | |
602f1657 | 11668 | # else |
183e98be AM |
11669 | prpsinfo32_t data; |
11670 | int note_type = NT_PRPSINFO; | |
602f1657 | 11671 | # endif |
183e98be AM |
11672 | |
11673 | memset (&data, 0, sizeof (data)); | |
11674 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11675 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11676 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11677 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11678 | } |
11679 | else | |
602f1657 | 11680 | # endif |
183e98be | 11681 | { |
602f1657 | 11682 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11683 | psinfo_t data; |
11684 | int note_type = NT_PSINFO; | |
602f1657 | 11685 | # else |
183e98be AM |
11686 | prpsinfo_t data; |
11687 | int note_type = NT_PRPSINFO; | |
602f1657 | 11688 | # endif |
7c76fa91 | 11689 | |
183e98be AM |
11690 | memset (&data, 0, sizeof (data)); |
11691 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11692 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11693 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11694 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11695 | } |
7c76fa91 MS |
11696 | #endif /* PSINFO_T or PRPSINFO_T */ |
11697 | ||
1f20dca5 UW |
11698 | free (buf); |
11699 | return NULL; | |
11700 | } | |
d99b4b92 | 11701 | #if GCC_VERSION >= 8000 |
602f1657 | 11702 | # pragma GCC diagnostic pop |
d99b4b92 | 11703 | #endif |
1f20dca5 | 11704 | |
70a38d42 SDJ |
11705 | char * |
11706 | elfcore_write_linux_prpsinfo32 | |
11707 | (bfd *abfd, char *buf, int *bufsiz, | |
11708 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11709 | { | |
a2f63b2e MR |
11710 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11711 | { | |
11712 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11713 | ||
11714 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11715 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11716 | &data, sizeof (data)); | |
11717 | } | |
11718 | else | |
11719 | { | |
11720 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11721 | |
a2f63b2e MR |
11722 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11723 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11724 | &data, sizeof (data)); | |
11725 | } | |
70a38d42 SDJ |
11726 | } |
11727 | ||
11728 | char * | |
11729 | elfcore_write_linux_prpsinfo64 | |
11730 | (bfd *abfd, char *buf, int *bufsiz, | |
11731 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11732 | { | |
3c9a7b0d MR |
11733 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11734 | { | |
11735 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11736 | ||
11737 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11738 | return elfcore_write_note (abfd, buf, bufsiz, | |
11739 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11740 | } | |
11741 | else | |
11742 | { | |
11743 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11744 | |
3c9a7b0d MR |
11745 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11746 | return elfcore_write_note (abfd, buf, bufsiz, | |
11747 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11748 | } | |
70a38d42 SDJ |
11749 | } |
11750 | ||
7c76fa91 | 11751 | char * |
217aa764 AM |
11752 | elfcore_write_prstatus (bfd *abfd, |
11753 | char *buf, | |
11754 | int *bufsiz, | |
11755 | long pid, | |
11756 | int cursig, | |
11757 | const void *gregs) | |
7c76fa91 | 11758 | { |
183e98be | 11759 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11760 | |
183e98be AM |
11761 | if (bed->elf_backend_write_core_note != NULL) |
11762 | { | |
11763 | char *ret; | |
11764 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11765 | NT_PRSTATUS, | |
11766 | pid, cursig, gregs); | |
11767 | if (ret != NULL) | |
11768 | return ret; | |
11769 | } | |
11770 | ||
1f20dca5 | 11771 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11772 | #if defined (HAVE_PRSTATUS32_T) |
11773 | if (bed->s->elfclass == ELFCLASS32) | |
11774 | { | |
11775 | prstatus32_t prstat; | |
11776 | ||
11777 | memset (&prstat, 0, sizeof (prstat)); | |
11778 | prstat.pr_pid = pid; | |
11779 | prstat.pr_cursig = cursig; | |
11780 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11781 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11782 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11783 | } | |
11784 | else | |
11785 | #endif | |
11786 | { | |
11787 | prstatus_t prstat; | |
11788 | ||
11789 | memset (&prstat, 0, sizeof (prstat)); | |
11790 | prstat.pr_pid = pid; | |
11791 | prstat.pr_cursig = cursig; | |
11792 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11793 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11794 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11795 | } | |
7c76fa91 MS |
11796 | #endif /* HAVE_PRSTATUS_T */ |
11797 | ||
1f20dca5 UW |
11798 | free (buf); |
11799 | return NULL; | |
11800 | } | |
11801 | ||
51316059 MS |
11802 | #if defined (HAVE_LWPSTATUS_T) |
11803 | char * | |
217aa764 AM |
11804 | elfcore_write_lwpstatus (bfd *abfd, |
11805 | char *buf, | |
11806 | int *bufsiz, | |
11807 | long pid, | |
11808 | int cursig, | |
11809 | const void *gregs) | |
51316059 MS |
11810 | { |
11811 | lwpstatus_t lwpstat; | |
183e98be | 11812 | const char *note_name = "CORE"; |
51316059 MS |
11813 | |
11814 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11815 | lwpstat.pr_lwpid = pid >> 16; | |
11816 | lwpstat.pr_cursig = cursig; | |
11817 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11818 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11819 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11820 | #if !defined(gregs) | |
11821 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11822 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11823 | #else | |
11824 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11825 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11826 | #endif | |
11827 | #endif | |
47d9a591 | 11828 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11829 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11830 | } | |
11831 | #endif /* HAVE_LWPSTATUS_T */ | |
11832 | ||
7c76fa91 MS |
11833 | #if defined (HAVE_PSTATUS_T) |
11834 | char * | |
217aa764 AM |
11835 | elfcore_write_pstatus (bfd *abfd, |
11836 | char *buf, | |
11837 | int *bufsiz, | |
11838 | long pid, | |
6c10990d NC |
11839 | int cursig ATTRIBUTE_UNUSED, |
11840 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11841 | { |
183e98be AM |
11842 | const char *note_name = "CORE"; |
11843 | #if defined (HAVE_PSTATUS32_T) | |
11844 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11845 | |
183e98be AM |
11846 | if (bed->s->elfclass == ELFCLASS32) |
11847 | { | |
11848 | pstatus32_t pstat; | |
11849 | ||
11850 | memset (&pstat, 0, sizeof (pstat)); | |
11851 | pstat.pr_pid = pid & 0xffff; | |
11852 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11853 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11854 | return buf; | |
11855 | } | |
11856 | else | |
11857 | #endif | |
11858 | { | |
11859 | pstatus_t pstat; | |
11860 | ||
11861 | memset (&pstat, 0, sizeof (pstat)); | |
11862 | pstat.pr_pid = pid & 0xffff; | |
11863 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11864 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11865 | return buf; | |
11866 | } | |
7c76fa91 MS |
11867 | } |
11868 | #endif /* HAVE_PSTATUS_T */ | |
11869 | ||
11870 | char * | |
217aa764 AM |
11871 | elfcore_write_prfpreg (bfd *abfd, |
11872 | char *buf, | |
11873 | int *bufsiz, | |
11874 | const void *fpregs, | |
11875 | int size) | |
7c76fa91 | 11876 | { |
183e98be | 11877 | const char *note_name = "CORE"; |
47d9a591 | 11878 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11879 | note_name, NT_FPREGSET, fpregs, size); |
11880 | } | |
11881 | ||
11882 | char * | |
217aa764 AM |
11883 | elfcore_write_prxfpreg (bfd *abfd, |
11884 | char *buf, | |
11885 | int *bufsiz, | |
11886 | const void *xfpregs, | |
11887 | int size) | |
7c76fa91 MS |
11888 | { |
11889 | char *note_name = "LINUX"; | |
47d9a591 | 11890 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11891 | note_name, NT_PRXFPREG, xfpregs, size); |
11892 | } | |
11893 | ||
4339cae0 L |
11894 | char * |
11895 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11896 | const void *xfpregs, int size) | |
11897 | { | |
97de3545 JB |
11898 | char *note_name; |
11899 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11900 | note_name = "FreeBSD"; | |
11901 | else | |
11902 | note_name = "LINUX"; | |
4339cae0 L |
11903 | return elfcore_write_note (abfd, buf, bufsiz, |
11904 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11905 | } | |
11906 | ||
97753bd5 AM |
11907 | char * |
11908 | elfcore_write_ppc_vmx (bfd *abfd, | |
11909 | char *buf, | |
11910 | int *bufsiz, | |
11911 | const void *ppc_vmx, | |
11912 | int size) | |
11913 | { | |
11914 | char *note_name = "LINUX"; | |
11915 | return elfcore_write_note (abfd, buf, bufsiz, | |
11916 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11917 | } | |
11918 | ||
89eeb0bc LM |
11919 | char * |
11920 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11921 | char *buf, |
11922 | int *bufsiz, | |
11923 | const void *ppc_vsx, | |
11924 | int size) | |
89eeb0bc LM |
11925 | { |
11926 | char *note_name = "LINUX"; | |
11927 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11928 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11929 | } |
11930 | ||
cb2366c1 EBM |
11931 | char * |
11932 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11933 | char *buf, |
11934 | int *bufsiz, | |
11935 | const void *ppc_tar, | |
11936 | int size) | |
cb2366c1 EBM |
11937 | { |
11938 | char *note_name = "LINUX"; | |
11939 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11940 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11941 | } |
11942 | ||
11943 | char * | |
11944 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11945 | char *buf, |
11946 | int *bufsiz, | |
11947 | const void *ppc_ppr, | |
11948 | int size) | |
cb2366c1 EBM |
11949 | { |
11950 | char *note_name = "LINUX"; | |
11951 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11952 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11953 | } |
11954 | ||
11955 | char * | |
11956 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11957 | char *buf, |
11958 | int *bufsiz, | |
11959 | const void *ppc_dscr, | |
11960 | int size) | |
cb2366c1 EBM |
11961 | { |
11962 | char *note_name = "LINUX"; | |
11963 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11964 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11965 | } |
11966 | ||
11967 | char * | |
11968 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11969 | char *buf, |
11970 | int *bufsiz, | |
11971 | const void *ppc_ebb, | |
11972 | int size) | |
cb2366c1 EBM |
11973 | { |
11974 | char *note_name = "LINUX"; | |
11975 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11976 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11977 | } |
11978 | ||
11979 | char * | |
11980 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11981 | char *buf, |
11982 | int *bufsiz, | |
11983 | const void *ppc_pmu, | |
11984 | int size) | |
cb2366c1 EBM |
11985 | { |
11986 | char *note_name = "LINUX"; | |
11987 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11988 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11989 | } |
11990 | ||
11991 | char * | |
11992 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11993 | char *buf, |
11994 | int *bufsiz, | |
11995 | const void *ppc_tm_cgpr, | |
11996 | int size) | |
cb2366c1 EBM |
11997 | { |
11998 | char *note_name = "LINUX"; | |
11999 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12000 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
12001 | } |
12002 | ||
12003 | char * | |
12004 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
12005 | char *buf, |
12006 | int *bufsiz, | |
12007 | const void *ppc_tm_cfpr, | |
12008 | int size) | |
cb2366c1 EBM |
12009 | { |
12010 | char *note_name = "LINUX"; | |
12011 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12012 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
12013 | } |
12014 | ||
12015 | char * | |
12016 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
12017 | char *buf, |
12018 | int *bufsiz, | |
12019 | const void *ppc_tm_cvmx, | |
12020 | int size) | |
cb2366c1 EBM |
12021 | { |
12022 | char *note_name = "LINUX"; | |
12023 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12024 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
12025 | } |
12026 | ||
12027 | char * | |
12028 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
12029 | char *buf, |
12030 | int *bufsiz, | |
12031 | const void *ppc_tm_cvsx, | |
12032 | int size) | |
cb2366c1 EBM |
12033 | { |
12034 | char *note_name = "LINUX"; | |
12035 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12036 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
12037 | } |
12038 | ||
12039 | char * | |
12040 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
12041 | char *buf, |
12042 | int *bufsiz, | |
12043 | const void *ppc_tm_spr, | |
12044 | int size) | |
cb2366c1 EBM |
12045 | { |
12046 | char *note_name = "LINUX"; | |
12047 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12048 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
12049 | } |
12050 | ||
12051 | char * | |
12052 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
12053 | char *buf, |
12054 | int *bufsiz, | |
12055 | const void *ppc_tm_ctar, | |
12056 | int size) | |
cb2366c1 EBM |
12057 | { |
12058 | char *note_name = "LINUX"; | |
12059 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12060 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
12061 | } |
12062 | ||
12063 | char * | |
12064 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
12065 | char *buf, |
12066 | int *bufsiz, | |
12067 | const void *ppc_tm_cppr, | |
12068 | int size) | |
cb2366c1 EBM |
12069 | { |
12070 | char *note_name = "LINUX"; | |
12071 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12072 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
12073 | } |
12074 | ||
12075 | char * | |
12076 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
12077 | char *buf, |
12078 | int *bufsiz, | |
12079 | const void *ppc_tm_cdscr, | |
12080 | int size) | |
cb2366c1 EBM |
12081 | { |
12082 | char *note_name = "LINUX"; | |
12083 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12084 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
12085 | } |
12086 | ||
0675e188 UW |
12087 | static char * |
12088 | elfcore_write_s390_high_gprs (bfd *abfd, | |
12089 | char *buf, | |
12090 | int *bufsiz, | |
12091 | const void *s390_high_gprs, | |
12092 | int size) | |
12093 | { | |
12094 | char *note_name = "LINUX"; | |
12095 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12096 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
12097 | s390_high_gprs, size); |
12098 | } | |
12099 | ||
d7eeb400 MS |
12100 | char * |
12101 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
12102 | char *buf, |
12103 | int *bufsiz, | |
12104 | const void *s390_timer, | |
12105 | int size) | |
d7eeb400 MS |
12106 | { |
12107 | char *note_name = "LINUX"; | |
12108 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12109 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
12110 | } |
12111 | ||
12112 | char * | |
12113 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
12114 | char *buf, |
12115 | int *bufsiz, | |
12116 | const void *s390_todcmp, | |
12117 | int size) | |
d7eeb400 MS |
12118 | { |
12119 | char *note_name = "LINUX"; | |
12120 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12121 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
12122 | } |
12123 | ||
12124 | char * | |
12125 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
12126 | char *buf, |
12127 | int *bufsiz, | |
12128 | const void *s390_todpreg, | |
12129 | int size) | |
d7eeb400 MS |
12130 | { |
12131 | char *note_name = "LINUX"; | |
12132 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12133 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
12134 | } |
12135 | ||
12136 | char * | |
12137 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
12138 | char *buf, |
12139 | int *bufsiz, | |
12140 | const void *s390_ctrs, | |
12141 | int size) | |
d7eeb400 MS |
12142 | { |
12143 | char *note_name = "LINUX"; | |
12144 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12145 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
12146 | } |
12147 | ||
12148 | char * | |
12149 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
12150 | char *buf, |
12151 | int *bufsiz, | |
12152 | const void *s390_prefix, | |
12153 | int size) | |
d7eeb400 MS |
12154 | { |
12155 | char *note_name = "LINUX"; | |
12156 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12157 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
12158 | } |
12159 | ||
355b81d9 UW |
12160 | char * |
12161 | elfcore_write_s390_last_break (bfd *abfd, | |
12162 | char *buf, | |
12163 | int *bufsiz, | |
12164 | const void *s390_last_break, | |
12165 | int size) | |
12166 | { | |
12167 | char *note_name = "LINUX"; | |
12168 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12169 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
12170 | s390_last_break, size); |
12171 | } | |
12172 | ||
12173 | char * | |
12174 | elfcore_write_s390_system_call (bfd *abfd, | |
12175 | char *buf, | |
12176 | int *bufsiz, | |
12177 | const void *s390_system_call, | |
12178 | int size) | |
12179 | { | |
12180 | char *note_name = "LINUX"; | |
12181 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12182 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
12183 | s390_system_call, size); |
12184 | } | |
12185 | ||
abb3f6cc NC |
12186 | char * |
12187 | elfcore_write_s390_tdb (bfd *abfd, | |
12188 | char *buf, | |
12189 | int *bufsiz, | |
12190 | const void *s390_tdb, | |
12191 | int size) | |
12192 | { | |
12193 | char *note_name = "LINUX"; | |
12194 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12195 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
12196 | } |
12197 | ||
4ef9f41a AA |
12198 | char * |
12199 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
12200 | char *buf, | |
12201 | int *bufsiz, | |
12202 | const void *s390_vxrs_low, | |
12203 | int size) | |
12204 | { | |
12205 | char *note_name = "LINUX"; | |
12206 | return elfcore_write_note (abfd, buf, bufsiz, | |
12207 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
12208 | } | |
12209 | ||
12210 | char * | |
12211 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
12212 | char *buf, | |
12213 | int *bufsiz, | |
12214 | const void *s390_vxrs_high, | |
12215 | int size) | |
12216 | { | |
12217 | char *note_name = "LINUX"; | |
12218 | return elfcore_write_note (abfd, buf, bufsiz, | |
12219 | note_name, NT_S390_VXRS_HIGH, | |
12220 | s390_vxrs_high, size); | |
12221 | } | |
12222 | ||
88ab90e8 AA |
12223 | char * |
12224 | elfcore_write_s390_gs_cb (bfd *abfd, | |
12225 | char *buf, | |
12226 | int *bufsiz, | |
12227 | const void *s390_gs_cb, | |
12228 | int size) | |
12229 | { | |
12230 | char *note_name = "LINUX"; | |
12231 | return elfcore_write_note (abfd, buf, bufsiz, | |
12232 | note_name, NT_S390_GS_CB, | |
12233 | s390_gs_cb, size); | |
12234 | } | |
12235 | ||
12236 | char * | |
12237 | elfcore_write_s390_gs_bc (bfd *abfd, | |
12238 | char *buf, | |
12239 | int *bufsiz, | |
12240 | const void *s390_gs_bc, | |
12241 | int size) | |
12242 | { | |
12243 | char *note_name = "LINUX"; | |
12244 | return elfcore_write_note (abfd, buf, bufsiz, | |
12245 | note_name, NT_S390_GS_BC, | |
12246 | s390_gs_bc, size); | |
12247 | } | |
12248 | ||
faa9a424 UW |
12249 | char * |
12250 | elfcore_write_arm_vfp (bfd *abfd, | |
12251 | char *buf, | |
12252 | int *bufsiz, | |
12253 | const void *arm_vfp, | |
12254 | int size) | |
12255 | { | |
12256 | char *note_name = "LINUX"; | |
12257 | return elfcore_write_note (abfd, buf, bufsiz, | |
12258 | note_name, NT_ARM_VFP, arm_vfp, size); | |
12259 | } | |
12260 | ||
652451f8 YZ |
12261 | char * |
12262 | elfcore_write_aarch_tls (bfd *abfd, | |
12263 | char *buf, | |
12264 | int *bufsiz, | |
12265 | const void *aarch_tls, | |
12266 | int size) | |
12267 | { | |
12268 | char *note_name = "LINUX"; | |
12269 | return elfcore_write_note (abfd, buf, bufsiz, | |
12270 | note_name, NT_ARM_TLS, aarch_tls, size); | |
12271 | } | |
12272 | ||
12273 | char * | |
12274 | elfcore_write_aarch_hw_break (bfd *abfd, | |
12275 | char *buf, | |
12276 | int *bufsiz, | |
12277 | const void *aarch_hw_break, | |
12278 | int size) | |
12279 | { | |
12280 | char *note_name = "LINUX"; | |
12281 | return elfcore_write_note (abfd, buf, bufsiz, | |
12282 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
12283 | } | |
12284 | ||
12285 | char * | |
12286 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
12287 | char *buf, | |
12288 | int *bufsiz, | |
12289 | const void *aarch_hw_watch, | |
12290 | int size) | |
12291 | { | |
12292 | char *note_name = "LINUX"; | |
12293 | return elfcore_write_note (abfd, buf, bufsiz, | |
12294 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
12295 | } | |
12296 | ||
ad1cc4e4 AH |
12297 | char * |
12298 | elfcore_write_aarch_sve (bfd *abfd, | |
12299 | char *buf, | |
12300 | int *bufsiz, | |
12301 | const void *aarch_sve, | |
12302 | int size) | |
12303 | { | |
12304 | char *note_name = "LINUX"; | |
12305 | return elfcore_write_note (abfd, buf, bufsiz, | |
12306 | note_name, NT_ARM_SVE, aarch_sve, size); | |
12307 | } | |
12308 | ||
e6c3b5bf AH |
12309 | char * |
12310 | elfcore_write_aarch_pauth (bfd *abfd, | |
12311 | char *buf, | |
12312 | int *bufsiz, | |
12313 | const void *aarch_pauth, | |
12314 | int size) | |
12315 | { | |
12316 | char *note_name = "LINUX"; | |
12317 | return elfcore_write_note (abfd, buf, bufsiz, | |
12318 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
12319 | } | |
12320 | ||
f0bbe8ba LM |
12321 | char * |
12322 | elfcore_write_aarch_mte (bfd *abfd, | |
12323 | char *buf, | |
12324 | int *bufsiz, | |
12325 | const void *aarch_mte, | |
12326 | int size) | |
12327 | { | |
12328 | char *note_name = "LINUX"; | |
12329 | return elfcore_write_note (abfd, buf, bufsiz, | |
12330 | note_name, NT_ARM_TAGGED_ADDR_CTRL, | |
12331 | aarch_mte, | |
12332 | size); | |
12333 | } | |
12334 | ||
27456742 AK |
12335 | char * |
12336 | elfcore_write_arc_v2 (bfd *abfd, | |
12337 | char *buf, | |
12338 | int *bufsiz, | |
12339 | const void *arc_v2, | |
12340 | int size) | |
12341 | { | |
12342 | char *note_name = "LINUX"; | |
12343 | return elfcore_write_note (abfd, buf, bufsiz, | |
12344 | note_name, NT_ARC_V2, arc_v2, size); | |
12345 | } | |
12346 | ||
e214f8db | 12347 | char * |
12348 | elfcore_write_loongarch_cpucfg (bfd *abfd, | |
12349 | char *buf, | |
12350 | int *bufsiz, | |
12351 | const void *loongarch_cpucfg, | |
12352 | int size) | |
12353 | { | |
12354 | char *note_name = "LINUX"; | |
12355 | return elfcore_write_note (abfd, buf, bufsiz, | |
12356 | note_name, NT_LARCH_CPUCFG, | |
12357 | loongarch_cpucfg, size); | |
12358 | } | |
12359 | ||
12360 | char * | |
12361 | elfcore_write_loongarch_lbt (bfd *abfd, | |
12362 | char *buf, | |
12363 | int *bufsiz, | |
12364 | const void *loongarch_lbt, | |
12365 | int size) | |
12366 | { | |
12367 | char *note_name = "LINUX"; | |
12368 | return elfcore_write_note (abfd, buf, bufsiz, | |
12369 | note_name, NT_LARCH_LBT, loongarch_lbt, size); | |
12370 | } | |
12371 | ||
12372 | char * | |
12373 | elfcore_write_loongarch_lsx (bfd *abfd, | |
12374 | char *buf, | |
12375 | int *bufsiz, | |
12376 | const void *loongarch_lsx, | |
12377 | int size) | |
12378 | { | |
12379 | char *note_name = "LINUX"; | |
12380 | return elfcore_write_note (abfd, buf, bufsiz, | |
12381 | note_name, NT_LARCH_LSX, loongarch_lsx, size); | |
12382 | } | |
12383 | ||
12384 | char * | |
12385 | elfcore_write_loongarch_lasx (bfd *abfd, | |
12386 | char *buf, | |
12387 | int *bufsiz, | |
12388 | const void *loongarch_lasx, | |
12389 | int size) | |
12390 | { | |
12391 | char *note_name = "LINUX"; | |
12392 | return elfcore_write_note (abfd, buf, bufsiz, | |
12393 | note_name, NT_LARCH_LASX, loongarch_lasx, size); | |
12394 | } | |
12395 | ||
db6092f3 AB |
12396 | /* Write the buffer of csr values in CSRS (length SIZE) into the note |
12397 | buffer BUF and update *BUFSIZ. ABFD is the bfd the note is being | |
12398 | written into. Return a pointer to the new start of the note buffer, to | |
12399 | replace BUF which may no longer be valid. */ | |
12400 | ||
12401 | char * | |
12402 | elfcore_write_riscv_csr (bfd *abfd, | |
12403 | char *buf, | |
12404 | int *bufsiz, | |
12405 | const void *csrs, | |
12406 | int size) | |
12407 | { | |
12408 | const char *note_name = "GDB"; | |
12409 | return elfcore_write_note (abfd, buf, bufsiz, | |
12410 | note_name, NT_RISCV_CSR, csrs, size); | |
12411 | } | |
12412 | ||
b63a5e38 AB |
12413 | /* Write the target description (a string) pointed to by TDESC, length |
12414 | SIZE, into the note buffer BUF, and update *BUFSIZ. ABFD is the bfd the | |
12415 | note is being written into. Return a pointer to the new start of the | |
12416 | note buffer, to replace BUF which may no longer be valid. */ | |
12417 | ||
12418 | char * | |
12419 | elfcore_write_gdb_tdesc (bfd *abfd, | |
12420 | char *buf, | |
12421 | int *bufsiz, | |
12422 | const void *tdesc, | |
12423 | int size) | |
12424 | { | |
12425 | const char *note_name = "GDB"; | |
12426 | return elfcore_write_note (abfd, buf, bufsiz, | |
12427 | note_name, NT_GDB_TDESC, tdesc, size); | |
12428 | } | |
12429 | ||
bb864ac1 CES |
12430 | char * |
12431 | elfcore_write_register_note (bfd *abfd, | |
12432 | char *buf, | |
12433 | int *bufsiz, | |
12434 | const char *section, | |
12435 | const void *data, | |
12436 | int size) | |
12437 | { | |
12438 | if (strcmp (section, ".reg2") == 0) | |
12439 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
12440 | if (strcmp (section, ".reg-xfp") == 0) | |
12441 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
12442 | if (strcmp (section, ".reg-xstate") == 0) |
12443 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12444 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
12445 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
12446 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
12447 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
12448 | if (strcmp (section, ".reg-ppc-tar") == 0) |
12449 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
12450 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
12451 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
12452 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
12453 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
12454 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
12455 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
12456 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
12457 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
12458 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
12459 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
12460 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
12461 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
12462 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
12463 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
12464 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
12465 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
12466 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
12467 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
12468 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
12469 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
12470 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
12471 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
12472 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
12473 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
12474 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
12475 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
12476 | if (strcmp (section, ".reg-s390-timer") == 0) |
12477 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
12478 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
12479 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
12480 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
12481 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
12482 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
12483 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
12484 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
12485 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
12486 | if (strcmp (section, ".reg-s390-last-break") == 0) |
12487 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
12488 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
12489 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
12490 | if (strcmp (section, ".reg-s390-tdb") == 0) |
12491 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
12492 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
12493 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
12494 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
12495 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
12496 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
12497 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
12498 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
12499 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
12500 | if (strcmp (section, ".reg-arm-vfp") == 0) |
12501 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
12502 | if (strcmp (section, ".reg-aarch-tls") == 0) |
12503 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
12504 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
12505 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
12506 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
12507 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
12508 | if (strcmp (section, ".reg-aarch-sve") == 0) |
12509 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
12510 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
12511 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
f0bbe8ba LM |
12512 | if (strcmp (section, ".reg-aarch-mte") == 0) |
12513 | return elfcore_write_aarch_mte (abfd, buf, bufsiz, data, size); | |
27456742 AK |
12514 | if (strcmp (section, ".reg-arc-v2") == 0) |
12515 | return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); | |
b63a5e38 AB |
12516 | if (strcmp (section, ".gdb-tdesc") == 0) |
12517 | return elfcore_write_gdb_tdesc (abfd, buf, bufsiz, data, size); | |
db6092f3 AB |
12518 | if (strcmp (section, ".reg-riscv-csr") == 0) |
12519 | return elfcore_write_riscv_csr (abfd, buf, bufsiz, data, size); | |
e214f8db | 12520 | if (strcmp (section, ".reg-loongarch-cpucfg") == 0) |
12521 | return elfcore_write_loongarch_cpucfg (abfd, buf, bufsiz, data, size); | |
12522 | if (strcmp (section, ".reg-loongarch-lbt") == 0) | |
12523 | return elfcore_write_loongarch_lbt (abfd, buf, bufsiz, data, size); | |
12524 | if (strcmp (section, ".reg-loongarch-lsx") == 0) | |
12525 | return elfcore_write_loongarch_lsx (abfd, buf, bufsiz, data, size); | |
12526 | if (strcmp (section, ".reg-loongarch-lasx") == 0) | |
12527 | return elfcore_write_loongarch_lasx (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12528 | return NULL; |
12529 | } | |
12530 | ||
4cb1265b MS |
12531 | char * |
12532 | elfcore_write_file_note (bfd *obfd, char *note_data, int *note_size, | |
12533 | const void *buf, int bufsiz) | |
12534 | { | |
12535 | return elfcore_write_note (obfd, note_data, note_size, | |
12536 | "CORE", NT_FILE, buf, bufsiz); | |
12537 | } | |
12538 | ||
0a1b45a2 | 12539 | static bool |
276da9b3 L |
12540 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
12541 | size_t align) | |
252b5132 | 12542 | { |
c044fabd | 12543 | char *p; |
252b5132 | 12544 | |
276da9b3 L |
12545 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
12546 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
12547 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
12548 | align is less than 4, we use 4 byte alignment. */ | |
12549 | if (align < 4) | |
12550 | align = 4; | |
ef135d43 | 12551 | if (align != 4 && align != 8) |
0a1b45a2 | 12552 | return false; |
276da9b3 | 12553 | |
252b5132 RH |
12554 | p = buf; |
12555 | while (p < buf + size) | |
12556 | { | |
c044fabd | 12557 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
12558 | Elf_Internal_Note in; |
12559 | ||
baea7ef1 | 12560 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
0a1b45a2 | 12561 | return false; |
baea7ef1 | 12562 | |
dc810e39 | 12563 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 12564 | |
dc810e39 | 12565 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 12566 | in.namedata = xnp->name; |
baea7ef1 | 12567 | if (in.namesz > buf - in.namedata + size) |
0a1b45a2 | 12568 | return false; |
252b5132 | 12569 | |
dc810e39 | 12570 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 12571 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 12572 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
12573 | if (in.descsz != 0 |
12574 | && (in.descdata >= buf + size | |
12575 | || in.descsz > buf - in.descdata + size)) | |
0a1b45a2 | 12576 | return false; |
252b5132 | 12577 | |
718175fa | 12578 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 12579 | { |
718175fa | 12580 | default: |
0a1b45a2 | 12581 | return true; |
718175fa JK |
12582 | |
12583 | case bfd_core: | |
f64e188b | 12584 | { |
8acbedd6 | 12585 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 12586 | struct |
718175fa | 12587 | { |
f64e188b | 12588 | const char * string; |
8acbedd6 | 12589 | size_t len; |
0a1b45a2 | 12590 | bool (*func) (bfd *, Elf_Internal_Note *); |
718175fa | 12591 | } |
f64e188b | 12592 | grokers[] = |
b15fa79e | 12593 | { |
8acbedd6 | 12594 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 12595 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 | 12596 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
6420dd27 | 12597 | GROKER_ELEMENT ("OpenBSD", elfcore_grok_openbsd_note), |
8acbedd6 | 12598 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), |
864619bb | 12599 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
6420dd27 LB |
12600 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note), |
12601 | GROKER_ELEMENT ("CORE", elfcore_grok_solaris_note) | |
f64e188b | 12602 | }; |
8acbedd6 | 12603 | #undef GROKER_ELEMENT |
f64e188b NC |
12604 | int i; |
12605 | ||
12606 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
12607 | { |
12608 | if (in.namesz >= grokers[i].len | |
12609 | && strncmp (in.namedata, grokers[i].string, | |
12610 | grokers[i].len) == 0) | |
12611 | { | |
12612 | if (! grokers[i].func (abfd, & in)) | |
0a1b45a2 | 12613 | return false; |
8acbedd6 KS |
12614 | break; |
12615 | } | |
12616 | } | |
f64e188b NC |
12617 | break; |
12618 | } | |
718175fa JK |
12619 | |
12620 | case bfd_object: | |
12621 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
12622 | { | |
12623 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
0a1b45a2 | 12624 | return false; |
718175fa | 12625 | } |
e21e5835 NC |
12626 | else if (in.namesz == sizeof "stapsdt" |
12627 | && strcmp (in.namedata, "stapsdt") == 0) | |
12628 | { | |
12629 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
0a1b45a2 | 12630 | return false; |
e21e5835 | 12631 | } |
718175fa | 12632 | break; |
08a40648 | 12633 | } |
252b5132 | 12634 | |
276da9b3 | 12635 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
12636 | } |
12637 | ||
0a1b45a2 | 12638 | return true; |
718175fa JK |
12639 | } |
12640 | ||
0a1b45a2 | 12641 | bool |
276da9b3 L |
12642 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
12643 | size_t align) | |
718175fa JK |
12644 | { |
12645 | char *buf; | |
12646 | ||
957e1fc1 | 12647 | if (size == 0 || (size + 1) == 0) |
0a1b45a2 | 12648 | return true; |
718175fa JK |
12649 | |
12650 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
0a1b45a2 | 12651 | return false; |
718175fa | 12652 | |
2bb3687b | 12653 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa | 12654 | if (buf == NULL) |
0a1b45a2 | 12655 | return false; |
718175fa | 12656 | |
f64e188b NC |
12657 | /* PR 17512: file: ec08f814 |
12658 | 0-termintate the buffer so that string searches will not overflow. */ | |
12659 | buf[size] = 0; | |
12660 | ||
2bb3687b | 12661 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
12662 | { |
12663 | free (buf); | |
0a1b45a2 | 12664 | return false; |
718175fa JK |
12665 | } |
12666 | ||
252b5132 | 12667 | free (buf); |
0a1b45a2 | 12668 | return true; |
252b5132 | 12669 | } |
98d8431c JB |
12670 | \f |
12671 | /* Providing external access to the ELF program header table. */ | |
12672 | ||
12673 | /* Return an upper bound on the number of bytes required to store a | |
12674 | copy of ABFD's program header table entries. Return -1 if an error | |
12675 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12676 | |
98d8431c | 12677 | long |
217aa764 | 12678 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
12679 | { |
12680 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12681 | { | |
12682 | bfd_set_error (bfd_error_wrong_format); | |
12683 | return -1; | |
12684 | } | |
12685 | ||
936e320b | 12686 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
12687 | } |
12688 | ||
98d8431c JB |
12689 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
12690 | will be stored as an array of Elf_Internal_Phdr structures, as | |
12691 | defined in include/elf/internal.h. To find out how large the | |
12692 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
12693 | ||
12694 | Return the number of program header table entries read, or -1 if an | |
12695 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12696 | |
98d8431c | 12697 | int |
217aa764 | 12698 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
12699 | { |
12700 | int num_phdrs; | |
12701 | ||
12702 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12703 | { | |
12704 | bfd_set_error (bfd_error_wrong_format); | |
12705 | return -1; | |
12706 | } | |
12707 | ||
12708 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
12709 | if (num_phdrs != 0) |
12710 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
12711 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
12712 | |
12713 | return num_phdrs; | |
12714 | } | |
ae4221d7 | 12715 | |
db6751f2 | 12716 | enum elf_reloc_type_class |
7e612e98 AM |
12717 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
12718 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12719 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
12720 | { |
12721 | return reloc_class_normal; | |
12722 | } | |
f8df10f4 | 12723 | |
47d9a591 | 12724 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12725 | relocation against a local symbol. */ |
12726 | ||
12727 | bfd_vma | |
217aa764 AM |
12728 | _bfd_elf_rela_local_sym (bfd *abfd, |
12729 | Elf_Internal_Sym *sym, | |
8517fae7 | 12730 | asection **psec, |
217aa764 | 12731 | Elf_Internal_Rela *rel) |
f8df10f4 | 12732 | { |
8517fae7 | 12733 | asection *sec = *psec; |
f8df10f4 JJ |
12734 | bfd_vma relocation; |
12735 | ||
6835821b AM |
12736 | relocation = (sec->output_section->vma |
12737 | + sec->output_offset | |
12738 | + sym->st_value); | |
f8df10f4 | 12739 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12740 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12741 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12742 | { |
f8df10f4 | 12743 | rel->r_addend = |
8517fae7 | 12744 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12745 | elf_section_data (sec)->sec_info, |
753731ee AM |
12746 | sym->st_value + rel->r_addend); |
12747 | if (sec != *psec) | |
12748 | { | |
12749 | /* If we have changed the section, and our original section is | |
12750 | marked with SEC_EXCLUDE, it means that the original | |
12751 | SEC_MERGE section has been completely subsumed in some | |
12752 | other SEC_MERGE section. In this case, we need to leave | |
12753 | some info around for --emit-relocs. */ | |
12754 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12755 | sec->kept_section = *psec; | |
12756 | sec = *psec; | |
12757 | } | |
8517fae7 AM |
12758 | rel->r_addend -= relocation; |
12759 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12760 | } |
12761 | return relocation; | |
12762 | } | |
c629eae0 JJ |
12763 | |
12764 | bfd_vma | |
217aa764 AM |
12765 | _bfd_elf_rel_local_sym (bfd *abfd, |
12766 | Elf_Internal_Sym *sym, | |
12767 | asection **psec, | |
12768 | bfd_vma addend) | |
47d9a591 | 12769 | { |
c629eae0 JJ |
12770 | asection *sec = *psec; |
12771 | ||
6835821b | 12772 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12773 | return sym->st_value + addend; |
12774 | ||
12775 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12776 | elf_section_data (sec)->sec_info, |
753731ee | 12777 | sym->st_value + addend); |
c629eae0 JJ |
12778 | } |
12779 | ||
37b01f6a DG |
12780 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12781 | the new offset within the section, based upon changes made to the | |
12782 | section. Returns -1 if the offset is now invalid. | |
12783 | The offset (in abnd out) is in target sized bytes, however big a | |
12784 | byte may be. */ | |
12785 | ||
c629eae0 | 12786 | bfd_vma |
217aa764 | 12787 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12788 | struct bfd_link_info *info, |
217aa764 AM |
12789 | asection *sec, |
12790 | bfd_vma offset) | |
c629eae0 | 12791 | { |
68bfbfcc | 12792 | switch (sec->sec_info_type) |
65765700 | 12793 | { |
dbaa2011 | 12794 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12795 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12796 | offset); | |
dbaa2011 | 12797 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12798 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12799 | |
65765700 | 12800 | default: |
310fd250 L |
12801 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12802 | { | |
37b01f6a | 12803 | /* Reverse the offset. */ |
310fd250 L |
12804 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12805 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12806 | |
12807 | /* address_size and sec->size are in octets. Convert | |
12808 | to bytes before subtracting the original offset. */ | |
61826503 | 12809 | offset = ((sec->size - address_size) |
bb294208 | 12810 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12811 | } |
65765700 JJ |
12812 | return offset; |
12813 | } | |
c629eae0 | 12814 | } |
3333a7c3 RM |
12815 | \f |
12816 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12817 | reconstruct an ELF file by reading the segments out of remote memory | |
12818 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12819 | points to. If not null, *LOADBASEP is filled in with the difference | |
12820 | between the VMAs from which the segments were read, and the VMAs the | |
12821 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12822 | ||
12823 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12824 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12825 | should return zero on success or an `errno' code on failure. TEMPL must | |
12826 | be a BFD for an ELF target with the word size and byte order found in | |
12827 | the remote memory. */ | |
12828 | ||
12829 | bfd * | |
217aa764 AM |
12830 | bfd_elf_bfd_from_remote_memory |
12831 | (bfd *templ, | |
12832 | bfd_vma ehdr_vma, | |
f0a5d95a | 12833 | bfd_size_type size, |
217aa764 | 12834 | bfd_vma *loadbasep, |
fe78531d | 12835 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12836 | { |
12837 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12838 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12839 | } |
4c45e5c9 JJ |
12840 | \f |
12841 | long | |
c9727e01 AM |
12842 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12843 | long symcount ATTRIBUTE_UNUSED, | |
12844 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12845 | long dynsymcount, |
c9727e01 AM |
12846 | asymbol **dynsyms, |
12847 | asymbol **ret) | |
4c45e5c9 JJ |
12848 | { |
12849 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12850 | asection *relplt; | |
12851 | asymbol *s; | |
12852 | const char *relplt_name; | |
0a1b45a2 | 12853 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
4c45e5c9 JJ |
12854 | arelent *p; |
12855 | long count, i, n; | |
12856 | size_t size; | |
12857 | Elf_Internal_Shdr *hdr; | |
12858 | char *names; | |
12859 | asection *plt; | |
12860 | ||
8615f3f2 AM |
12861 | *ret = NULL; |
12862 | ||
90e3cdf2 JJ |
12863 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12864 | return 0; | |
12865 | ||
8615f3f2 AM |
12866 | if (dynsymcount <= 0) |
12867 | return 0; | |
12868 | ||
4c45e5c9 JJ |
12869 | if (!bed->plt_sym_val) |
12870 | return 0; | |
12871 | ||
12872 | relplt_name = bed->relplt_name; | |
12873 | if (relplt_name == NULL) | |
d35fd659 | 12874 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12875 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12876 | if (relplt == NULL) | |
12877 | return 0; | |
12878 | ||
12879 | hdr = &elf_section_data (relplt)->this_hdr; | |
12880 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12881 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12882 | return 0; | |
12883 | ||
12884 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12885 | if (plt == NULL) | |
12886 | return 0; | |
12887 | ||
12888 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
0a1b45a2 | 12889 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, true)) |
4c45e5c9 JJ |
12890 | return -1; |
12891 | ||
eea6121a | 12892 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12893 | size = count * sizeof (asymbol); |
12894 | p = relplt->relocation; | |
cb53bf42 | 12895 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12896 | { |
12897 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12898 | if (p->addend != 0) | |
12899 | { | |
12900 | #ifdef BFD64 | |
12901 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12902 | #else | |
12903 | size += sizeof ("+0x") - 1 + 8; | |
12904 | #endif | |
12905 | } | |
12906 | } | |
4c45e5c9 | 12907 | |
a50b1753 | 12908 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12909 | if (s == NULL) |
12910 | return -1; | |
12911 | ||
12912 | names = (char *) (s + count); | |
12913 | p = relplt->relocation; | |
12914 | n = 0; | |
cb53bf42 | 12915 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12916 | { |
12917 | size_t len; | |
12918 | bfd_vma addr; | |
12919 | ||
12920 | addr = bed->plt_sym_val (i, plt, p); | |
12921 | if (addr == (bfd_vma) -1) | |
12922 | continue; | |
12923 | ||
12924 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12925 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12926 | we are defining a symbol, ensure one of them is set. */ | |
12927 | if ((s->flags & BSF_LOCAL) == 0) | |
12928 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12929 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12930 | s->section = plt; |
12931 | s->value = addr - plt->vma; | |
12932 | s->name = names; | |
8f39ba8e | 12933 | s->udata.p = NULL; |
4c45e5c9 JJ |
12934 | len = strlen ((*p->sym_ptr_ptr)->name); |
12935 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12936 | names += len; | |
041de40d AM |
12937 | if (p->addend != 0) |
12938 | { | |
1d770845 | 12939 | char buf[30], *a; |
d324f6d6 | 12940 | |
041de40d AM |
12941 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12942 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12943 | bfd_sprintf_vma (abfd, buf, p->addend); |
12944 | for (a = buf; *a == '0'; ++a) | |
12945 | ; | |
12946 | len = strlen (a); | |
12947 | memcpy (names, a, len); | |
12948 | names += len; | |
041de40d | 12949 | } |
4c45e5c9 JJ |
12950 | memcpy (names, "@plt", sizeof ("@plt")); |
12951 | names += sizeof ("@plt"); | |
8f39ba8e | 12952 | ++s, ++n; |
4c45e5c9 JJ |
12953 | } |
12954 | ||
12955 | return n; | |
12956 | } | |
3d7f7666 | 12957 | |
821e6ff6 AM |
12958 | /* It is only used by x86-64 so far. |
12959 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12960 | but current usage would allow all of _bfd_std_section to be zero. */ |
12961 | static const asymbol lcomm_sym | |
12962 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12963 | asection _bfd_elf_large_com_section |
7eacd66b | 12964 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12965 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12966 | |
0a1b45a2 | 12967 | bool |
cc364be6 | 12968 | _bfd_elf_final_write_processing (bfd *abfd) |
06f44071 AM |
12969 | { |
12970 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12971 | |
12972 | i_ehdrp = elf_elfheader (abfd); | |
12973 | ||
06f44071 AM |
12974 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12975 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12976 | |
df3a023b | 12977 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
99fabbc9 JL |
12978 | SHF_GNU_MBIND or SHF_GNU_RETAIN sections or symbols of STT_GNU_IFUNC type |
12979 | or STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12980 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12981 | { | |
12982 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12983 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12984 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12985 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12986 | { | |
12987 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
99fabbc9 JL |
12988 | _bfd_error_handler (_("GNU_MBIND section is supported only by GNU " |
12989 | "and FreeBSD targets")); | |
cc364be6 | 12990 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) |
99fabbc9 JL |
12991 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is supported " |
12992 | "only by GNU and FreeBSD targets")); | |
cc364be6 | 12993 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) |
99fabbc9 JL |
12994 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is supported " |
12995 | "only by GNU and FreeBSD targets")); | |
12996 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_retain) | |
12997 | _bfd_error_handler (_("GNU_RETAIN section is supported " | |
12998 | "only by GNU and FreeBSD targets")); | |
9aea1e31 | 12999 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 13000 | return false; |
cc364be6 AM |
13001 | } |
13002 | } | |
0a1b45a2 | 13003 | return true; |
d1036acb | 13004 | } |
fcb93ecf PB |
13005 | |
13006 | ||
13007 | /* Return TRUE for ELF symbol types that represent functions. | |
13008 | This is the default version of this function, which is sufficient for | |
d8045f23 | 13009 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf | 13010 | |
0a1b45a2 | 13011 | bool |
fcb93ecf PB |
13012 | _bfd_elf_is_function_type (unsigned int type) |
13013 | { | |
d8045f23 NC |
13014 | return (type == STT_FUNC |
13015 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 13016 | } |
9f296da3 | 13017 | |
aef36ac1 AM |
13018 | /* If the ELF symbol SYM might be a function in SEC, return the |
13019 | function size and set *CODE_OFF to the function's entry point, | |
13020 | otherwise return zero. */ | |
9f296da3 | 13021 | |
aef36ac1 AM |
13022 | bfd_size_type |
13023 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
13024 | bfd_vma *code_off) | |
9f296da3 | 13025 | { |
aef36ac1 | 13026 | bfd_size_type size; |
24aebc79 | 13027 | elf_symbol_type * elf_sym = (elf_symbol_type *) sym; |
aef36ac1 | 13028 | |
ff9e0f5b | 13029 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
13030 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
13031 | || sym->section != sec) | |
13032 | return 0; | |
ff9e0f5b | 13033 | |
24aebc79 NC |
13034 | size = (sym->flags & BSF_SYNTHETIC) ? 0 : elf_sym->internal_elf_sym.st_size; |
13035 | ||
13036 | /* In theory we should check that the symbol's type satisfies | |
13037 | _bfd_elf_is_function_type(), but there are some function-like | |
13038 | symbols which would fail this test. (eg _start). Instead | |
13039 | we check for hidden, local, notype symbols with zero size. | |
13040 | This type of symbol is generated by the annobin plugin for gcc | |
13041 | and clang, and should not be considered to be a function symbol. */ | |
13042 | if (size == 0 | |
13043 | && ((sym->flags & (BSF_SYNTHETIC | BSF_LOCAL)) == BSF_LOCAL) | |
13044 | && ELF_ST_TYPE (elf_sym->internal_elf_sym.st_info) == STT_NOTYPE | |
13045 | && ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other) == STV_HIDDEN) | |
13046 | return 0; | |
13047 | ||
ff9e0f5b | 13048 | *code_off = sym->value; |
24aebc79 NC |
13049 | /* Do not return 0 for the function's size. */ |
13050 | return size ? size : 1; | |
9f296da3 | 13051 | } |
a8e14f4c NC |
13052 | |
13053 | /* Set to non-zero to enable some debug messages. */ | |
13054 | #define DEBUG_SECONDARY_RELOCS 0 | |
13055 | ||
13056 | /* An internal-to-the-bfd-library only section type | |
13057 | used to indicate a cached secondary reloc section. */ | |
13058 | #define SHT_SECONDARY_RELOC (SHT_LOOS + SHT_RELA) | |
13059 | ||
13060 | /* Create a BFD section to hold a secondary reloc section. */ | |
13061 | ||
0a1b45a2 | 13062 | bool |
a8e14f4c NC |
13063 | _bfd_elf_init_secondary_reloc_section (bfd * abfd, |
13064 | Elf_Internal_Shdr *hdr, | |
13065 | const char * name, | |
13066 | unsigned int shindex) | |
13067 | { | |
13068 | /* We only support RELA secondary relocs. */ | |
13069 | if (hdr->sh_type != SHT_RELA) | |
0a1b45a2 | 13070 | return false; |
a8e14f4c NC |
13071 | |
13072 | #if DEBUG_SECONDARY_RELOCS | |
13073 | fprintf (stderr, "secondary reloc section %s encountered\n", name); | |
13074 | #endif | |
13075 | hdr->sh_type = SHT_SECONDARY_RELOC; | |
13076 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
13077 | } | |
13078 | ||
13079 | /* Read in any secondary relocs associated with SEC. */ | |
13080 | ||
0a1b45a2 | 13081 | bool |
f60742b2 NC |
13082 | _bfd_elf_slurp_secondary_reloc_section (bfd * abfd, |
13083 | asection * sec, | |
13084 | asymbol ** symbols, | |
0a1b45a2 | 13085 | bool dynamic) |
a8e14f4c NC |
13086 | { |
13087 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
13088 | asection * relsec; | |
0a1b45a2 | 13089 | bool result = true; |
a8e14f4c NC |
13090 | bfd_vma (*r_sym) (bfd_vma); |
13091 | ||
13092 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
13093 | if (bfd_arch_bits_per_address (abfd) != 32) | |
13094 | r_sym = elf64_r_sym; | |
13095 | else | |
13096 | #endif | |
13097 | r_sym = elf32_r_sym; | |
13098 | ||
956ea65c MM |
13099 | if (!elf_section_data (sec)->has_secondary_relocs) |
13100 | return true; | |
13101 | ||
a8e14f4c NC |
13102 | /* Discover if there are any secondary reloc sections |
13103 | associated with SEC. */ | |
13104 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
13105 | { | |
13106 | Elf_Internal_Shdr * hdr = & elf_section_data (relsec)->this_hdr; | |
13107 | ||
13108 | if (hdr->sh_type == SHT_SECONDARY_RELOC | |
8642dafa AM |
13109 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx |
13110 | && (hdr->sh_entsize == ebd->s->sizeof_rel | |
13111 | || hdr->sh_entsize == ebd->s->sizeof_rela)) | |
a8e14f4c NC |
13112 | { |
13113 | bfd_byte * native_relocs; | |
13114 | bfd_byte * native_reloc; | |
13115 | arelent * internal_relocs; | |
13116 | arelent * internal_reloc; | |
13117 | unsigned int i; | |
13118 | unsigned int entsize; | |
13119 | unsigned int symcount; | |
13120 | unsigned int reloc_count; | |
13121 | size_t amt; | |
13122 | ||
13123 | if (ebd->elf_info_to_howto == NULL) | |
0a1b45a2 | 13124 | return false; |
a8e14f4c NC |
13125 | |
13126 | #if DEBUG_SECONDARY_RELOCS | |
13127 | fprintf (stderr, "read secondary relocs for %s from %s\n", | |
13128 | sec->name, relsec->name); | |
13129 | #endif | |
13130 | entsize = hdr->sh_entsize; | |
13131 | ||
13132 | native_relocs = bfd_malloc (hdr->sh_size); | |
13133 | if (native_relocs == NULL) | |
13134 | { | |
0a1b45a2 | 13135 | result = false; |
a8e14f4c NC |
13136 | continue; |
13137 | } | |
13138 | ||
13139 | reloc_count = NUM_SHDR_ENTRIES (hdr); | |
13140 | if (_bfd_mul_overflow (reloc_count, sizeof (arelent), & amt)) | |
13141 | { | |
ecbbbdba | 13142 | free (native_relocs); |
a8e14f4c | 13143 | bfd_set_error (bfd_error_file_too_big); |
0a1b45a2 | 13144 | result = false; |
a8e14f4c NC |
13145 | continue; |
13146 | } | |
13147 | ||
13148 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
13149 | if (internal_relocs == NULL) | |
13150 | { | |
13151 | free (native_relocs); | |
0a1b45a2 | 13152 | result = false; |
a8e14f4c NC |
13153 | continue; |
13154 | } | |
13155 | ||
13156 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
13157 | || (bfd_bread (native_relocs, hdr->sh_size, abfd) | |
13158 | != hdr->sh_size)) | |
13159 | { | |
13160 | free (native_relocs); | |
ecbbbdba NC |
13161 | /* The internal_relocs will be freed when |
13162 | the memory for the bfd is released. */ | |
0a1b45a2 | 13163 | result = false; |
a8e14f4c NC |
13164 | continue; |
13165 | } | |
13166 | ||
f60742b2 NC |
13167 | if (dynamic) |
13168 | symcount = bfd_get_dynamic_symcount (abfd); | |
13169 | else | |
13170 | symcount = bfd_get_symcount (abfd); | |
a8e14f4c NC |
13171 | |
13172 | for (i = 0, internal_reloc = internal_relocs, | |
13173 | native_reloc = native_relocs; | |
13174 | i < reloc_count; | |
13175 | i++, internal_reloc++, native_reloc += entsize) | |
13176 | { | |
0a1b45a2 | 13177 | bool res; |
a8e14f4c NC |
13178 | Elf_Internal_Rela rela; |
13179 | ||
8ee54925 NC |
13180 | if (entsize == ebd->s->sizeof_rel) |
13181 | ebd->s->swap_reloc_in (abfd, native_reloc, & rela); | |
13182 | else /* entsize == ebd->s->sizeof_rela */ | |
13183 | ebd->s->swap_reloca_in (abfd, native_reloc, & rela); | |
a8e14f4c NC |
13184 | |
13185 | /* The address of an ELF reloc is section relative for an object | |
13186 | file, and absolute for an executable file or shared library. | |
13187 | The address of a normal BFD reloc is always section relative, | |
13188 | and the address of a dynamic reloc is absolute.. */ | |
13189 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
13190 | internal_reloc->address = rela.r_offset; | |
13191 | else | |
13192 | internal_reloc->address = rela.r_offset - sec->vma; | |
13193 | ||
13194 | if (r_sym (rela.r_info) == STN_UNDEF) | |
13195 | { | |
13196 | /* FIXME: This and the error case below mean that we | |
13197 | have a symbol on relocs that is not elf_symbol_type. */ | |
13198 | internal_reloc->sym_ptr_ptr = | |
13199 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
13200 | } | |
13201 | else if (r_sym (rela.r_info) > symcount) | |
13202 | { | |
13203 | _bfd_error_handler | |
13204 | /* xgettext:c-format */ | |
13205 | (_("%pB(%pA): relocation %d has invalid symbol index %ld"), | |
13206 | abfd, sec, i, (long) r_sym (rela.r_info)); | |
13207 | bfd_set_error (bfd_error_bad_value); | |
13208 | internal_reloc->sym_ptr_ptr = | |
13209 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
0a1b45a2 | 13210 | result = false; |
a8e14f4c NC |
13211 | } |
13212 | else | |
13213 | { | |
13214 | asymbol **ps; | |
13215 | ||
13216 | ps = symbols + r_sym (rela.r_info) - 1; | |
a8e14f4c NC |
13217 | internal_reloc->sym_ptr_ptr = ps; |
13218 | /* Make sure that this symbol is not removed by strip. */ | |
13219 | (*ps)->flags |= BSF_KEEP; | |
13220 | } | |
13221 | ||
13222 | internal_reloc->addend = rela.r_addend; | |
13223 | ||
13224 | res = ebd->elf_info_to_howto (abfd, internal_reloc, & rela); | |
13225 | if (! res || internal_reloc->howto == NULL) | |
13226 | { | |
13227 | #if DEBUG_SECONDARY_RELOCS | |
13228 | fprintf (stderr, "there is no howto associated with reloc %lx\n", | |
13229 | rela.r_info); | |
13230 | #endif | |
0a1b45a2 | 13231 | result = false; |
a8e14f4c NC |
13232 | } |
13233 | } | |
13234 | ||
13235 | free (native_relocs); | |
13236 | /* Store the internal relocs. */ | |
13237 | elf_section_data (relsec)->sec_info = internal_relocs; | |
13238 | } | |
13239 | } | |
13240 | ||
13241 | return result; | |
13242 | } | |
13243 | ||
13244 | /* Set the ELF section header fields of an output secondary reloc section. */ | |
13245 | ||
0a1b45a2 | 13246 | bool |
a8e14f4c NC |
13247 | _bfd_elf_copy_special_section_fields (const bfd * ibfd ATTRIBUTE_UNUSED, |
13248 | bfd * obfd ATTRIBUTE_UNUSED, | |
13249 | const Elf_Internal_Shdr * isection, | |
13250 | Elf_Internal_Shdr * osection) | |
13251 | { | |
13252 | asection * isec; | |
13253 | asection * osec; | |
44466e45 | 13254 | struct bfd_elf_section_data * esd; |
a8e14f4c NC |
13255 | |
13256 | if (isection == NULL) | |
0a1b45a2 | 13257 | return false; |
a8e14f4c NC |
13258 | |
13259 | if (isection->sh_type != SHT_SECONDARY_RELOC) | |
0a1b45a2 | 13260 | return true; |
a8e14f4c NC |
13261 | |
13262 | isec = isection->bfd_section; | |
13263 | if (isec == NULL) | |
0a1b45a2 | 13264 | return false; |
a8e14f4c NC |
13265 | |
13266 | osec = osection->bfd_section; | |
13267 | if (osec == NULL) | |
0a1b45a2 | 13268 | return false; |
a8e14f4c | 13269 | |
44466e45 NC |
13270 | esd = elf_section_data (osec); |
13271 | BFD_ASSERT (esd->sec_info == NULL); | |
13272 | esd->sec_info = elf_section_data (isec)->sec_info; | |
a8e14f4c NC |
13273 | osection->sh_type = SHT_RELA; |
13274 | osection->sh_link = elf_onesymtab (obfd); | |
13275 | if (osection->sh_link == 0) | |
13276 | { | |
13277 | /* There is no symbol table - we are hosed... */ | |
13278 | _bfd_error_handler | |
13279 | /* xgettext:c-format */ | |
13280 | (_("%pB(%pA): link section cannot be set because the output file does not have a symbol table"), | |
13281 | obfd, osec); | |
13282 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13283 | return false; |
a8e14f4c NC |
13284 | } |
13285 | ||
13286 | /* Find the output section that corresponds to the isection's sh_info link. */ | |
327ef784 NC |
13287 | if (isection->sh_info == 0 |
13288 | || isection->sh_info >= elf_numsections (ibfd)) | |
13289 | { | |
13290 | _bfd_error_handler | |
13291 | /* xgettext:c-format */ | |
13292 | (_("%pB(%pA): info section index is invalid"), | |
13293 | obfd, osec); | |
13294 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13295 | return false; |
327ef784 NC |
13296 | } |
13297 | ||
a8e14f4c NC |
13298 | isection = elf_elfsections (ibfd)[isection->sh_info]; |
13299 | ||
327ef784 NC |
13300 | if (isection == NULL |
13301 | || isection->bfd_section == NULL | |
13302 | || isection->bfd_section->output_section == NULL) | |
13303 | { | |
13304 | _bfd_error_handler | |
13305 | /* xgettext:c-format */ | |
13306 | (_("%pB(%pA): info section index cannot be set because the section is not in the output"), | |
13307 | obfd, osec); | |
13308 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13309 | return false; |
327ef784 NC |
13310 | } |
13311 | ||
44466e45 NC |
13312 | esd = elf_section_data (isection->bfd_section->output_section); |
13313 | BFD_ASSERT (esd != NULL); | |
13314 | osection->sh_info = esd->this_idx; | |
0a1b45a2 | 13315 | esd->has_secondary_relocs = true; |
a8e14f4c NC |
13316 | #if DEBUG_SECONDARY_RELOCS |
13317 | fprintf (stderr, "update header of %s, sh_link = %u, sh_info = %u\n", | |
13318 | osec->name, osection->sh_link, osection->sh_info); | |
44466e45 NC |
13319 | fprintf (stderr, "mark section %s as having secondary relocs\n", |
13320 | bfd_section_name (isection->bfd_section->output_section)); | |
a8e14f4c NC |
13321 | #endif |
13322 | ||
0a1b45a2 | 13323 | return true; |
a8e14f4c NC |
13324 | } |
13325 | ||
44466e45 NC |
13326 | /* Write out a secondary reloc section. |
13327 | ||
13328 | FIXME: Currently this function can result in a serious performance penalty | |
13329 | for files with secondary relocs and lots of sections. The proper way to | |
13330 | fix this is for _bfd_elf_copy_special_section_fields() to chain secondary | |
13331 | relocs together and then to have this function just walk that chain. */ | |
a8e14f4c | 13332 | |
0a1b45a2 | 13333 | bool |
a8e14f4c NC |
13334 | _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec) |
13335 | { | |
13336 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
13337 | bfd_vma addr_offset; | |
13338 | asection * relsec; | |
13339 | bfd_vma (*r_info) (bfd_vma, bfd_vma); | |
0a1b45a2 | 13340 | bool result = true; |
ac4bf06c NC |
13341 | |
13342 | if (sec == NULL) | |
0a1b45a2 | 13343 | return false; |
a8e14f4c NC |
13344 | |
13345 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
13346 | if (bfd_arch_bits_per_address (abfd) != 32) | |
13347 | r_info = elf64_r_info; | |
13348 | else | |
13349 | #endif | |
13350 | r_info = elf32_r_info; | |
13351 | ||
a8e14f4c NC |
13352 | /* The address of an ELF reloc is section relative for an object |
13353 | file, and absolute for an executable file or shared library. | |
13354 | The address of a BFD reloc is always section relative. */ | |
13355 | addr_offset = 0; | |
13356 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
13357 | addr_offset = sec->vma; | |
13358 | ||
13359 | /* Discover if there are any secondary reloc sections | |
13360 | associated with SEC. */ | |
13361 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
13362 | { | |
13363 | const struct bfd_elf_section_data * const esd = elf_section_data (relsec); | |
13364 | Elf_Internal_Shdr * const hdr = (Elf_Internal_Shdr *) & esd->this_hdr; | |
13365 | ||
13366 | if (hdr->sh_type == SHT_RELA | |
13367 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
13368 | { | |
13369 | asymbol * last_sym; | |
13370 | int last_sym_idx; | |
13371 | unsigned int reloc_count; | |
13372 | unsigned int idx; | |
8ee54925 | 13373 | unsigned int entsize; |
a8e14f4c NC |
13374 | arelent * src_irel; |
13375 | bfd_byte * dst_rela; | |
13376 | ||
ac4bf06c NC |
13377 | if (hdr->contents != NULL) |
13378 | { | |
13379 | _bfd_error_handler | |
13380 | /* xgettext:c-format */ | |
13381 | (_("%pB(%pA): error: secondary reloc section processed twice"), | |
13382 | abfd, relsec); | |
13383 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13384 | result = false; |
ac4bf06c NC |
13385 | continue; |
13386 | } | |
a8e14f4c | 13387 | |
8ee54925 NC |
13388 | entsize = hdr->sh_entsize; |
13389 | if (entsize == 0) | |
ac267c75 NC |
13390 | { |
13391 | _bfd_error_handler | |
13392 | /* xgettext:c-format */ | |
13393 | (_("%pB(%pA): error: secondary reloc section has zero sized entries"), | |
13394 | abfd, relsec); | |
13395 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13396 | result = false; |
ac267c75 NC |
13397 | continue; |
13398 | } | |
8ee54925 NC |
13399 | else if (entsize != ebd->s->sizeof_rel |
13400 | && entsize != ebd->s->sizeof_rela) | |
13401 | { | |
13402 | _bfd_error_handler | |
13403 | /* xgettext:c-format */ | |
13404 | (_("%pB(%pA): error: secondary reloc section has non-standard sized entries"), | |
13405 | abfd, relsec); | |
13406 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13407 | result = false; |
8ee54925 NC |
13408 | continue; |
13409 | } | |
ac267c75 | 13410 | |
8ee54925 | 13411 | reloc_count = hdr->sh_size / entsize; |
ac4bf06c NC |
13412 | if (reloc_count <= 0) |
13413 | { | |
13414 | _bfd_error_handler | |
13415 | /* xgettext:c-format */ | |
13416 | (_("%pB(%pA): error: secondary reloc section is empty!"), | |
13417 | abfd, relsec); | |
13418 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13419 | result = false; |
ac4bf06c NC |
13420 | continue; |
13421 | } | |
a8e14f4c NC |
13422 | |
13423 | hdr->contents = bfd_alloc (abfd, hdr->sh_size); | |
13424 | if (hdr->contents == NULL) | |
13425 | continue; | |
13426 | ||
13427 | #if DEBUG_SECONDARY_RELOCS | |
13428 | fprintf (stderr, "write %u secondary relocs for %s from %s\n", | |
13429 | reloc_count, sec->name, relsec->name); | |
13430 | #endif | |
13431 | last_sym = NULL; | |
13432 | last_sym_idx = 0; | |
13433 | dst_rela = hdr->contents; | |
13434 | src_irel = (arelent *) esd->sec_info; | |
ac4bf06c NC |
13435 | if (src_irel == NULL) |
13436 | { | |
13437 | _bfd_error_handler | |
13438 | /* xgettext:c-format */ | |
13439 | (_("%pB(%pA): error: internal relocs missing for secondary reloc section"), | |
13440 | abfd, relsec); | |
13441 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13442 | result = false; |
ac4bf06c NC |
13443 | continue; |
13444 | } | |
a8e14f4c | 13445 | |
8ee54925 | 13446 | for (idx = 0; idx < reloc_count; idx++, dst_rela += entsize) |
a8e14f4c NC |
13447 | { |
13448 | Elf_Internal_Rela src_rela; | |
13449 | arelent *ptr; | |
13450 | asymbol *sym; | |
13451 | int n; | |
13452 | ||
13453 | ptr = src_irel + idx; | |
ac4bf06c NC |
13454 | if (ptr == NULL) |
13455 | { | |
13456 | _bfd_error_handler | |
13457 | /* xgettext:c-format */ | |
13458 | (_("%pB(%pA): error: reloc table entry %u is empty"), | |
13459 | abfd, relsec, idx); | |
13460 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13461 | result = false; |
ac4bf06c NC |
13462 | break; |
13463 | } | |
a8e14f4c | 13464 | |
ac4bf06c NC |
13465 | if (ptr->sym_ptr_ptr == NULL) |
13466 | { | |
13467 | /* FIXME: Is this an error ? */ | |
13468 | n = 0; | |
13469 | } | |
a8e14f4c NC |
13470 | else |
13471 | { | |
ac4bf06c NC |
13472 | sym = *ptr->sym_ptr_ptr; |
13473 | ||
13474 | if (sym == last_sym) | |
13475 | n = last_sym_idx; | |
13476 | else | |
a8e14f4c | 13477 | { |
ac4bf06c NC |
13478 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, & sym); |
13479 | if (n < 0) | |
13480 | { | |
13481 | _bfd_error_handler | |
13482 | /* xgettext:c-format */ | |
13483 | (_("%pB(%pA): error: secondary reloc %u references a missing symbol"), | |
13484 | abfd, relsec, idx); | |
13485 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13486 | result = false; |
ac4bf06c NC |
13487 | n = 0; |
13488 | } | |
13489 | ||
13490 | last_sym = sym; | |
13491 | last_sym_idx = n; | |
a8e14f4c | 13492 | } |
a8e14f4c | 13493 | |
ac4bf06c NC |
13494 | if (sym->the_bfd != NULL |
13495 | && sym->the_bfd->xvec != abfd->xvec | |
13496 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
13497 | { | |
13498 | _bfd_error_handler | |
13499 | /* xgettext:c-format */ | |
13500 | (_("%pB(%pA): error: secondary reloc %u references a deleted symbol"), | |
13501 | abfd, relsec, idx); | |
13502 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13503 | result = false; |
ac4bf06c NC |
13504 | n = 0; |
13505 | } | |
a8e14f4c NC |
13506 | } |
13507 | ||
ac4bf06c | 13508 | src_rela.r_offset = ptr->address + addr_offset; |
a8e14f4c NC |
13509 | if (ptr->howto == NULL) |
13510 | { | |
ac4bf06c NC |
13511 | _bfd_error_handler |
13512 | /* xgettext:c-format */ | |
13513 | (_("%pB(%pA): error: secondary reloc %u is of an unknown type"), | |
13514 | abfd, relsec, idx); | |
13515 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13516 | result = false; |
ac4bf06c | 13517 | src_rela.r_info = r_info (0, 0); |
a8e14f4c | 13518 | } |
ac4bf06c NC |
13519 | else |
13520 | src_rela.r_info = r_info (n, ptr->howto->type); | |
a8e14f4c | 13521 | src_rela.r_addend = ptr->addend; |
8ee54925 NC |
13522 | |
13523 | if (entsize == ebd->s->sizeof_rel) | |
13524 | ebd->s->swap_reloc_out (abfd, &src_rela, dst_rela); | |
13525 | else /* entsize == ebd->s->sizeof_rela */ | |
13526 | ebd->s->swap_reloca_out (abfd, &src_rela, dst_rela); | |
a8e14f4c NC |
13527 | } |
13528 | } | |
13529 | } | |
13530 | ||
ac4bf06c | 13531 | return result; |
a8e14f4c | 13532 | } |