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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 | { | |
11c6a7c6 AM |
432 | if (symtab_hdr == &elf_symtab_hdr (ibfd)) |
433 | /* Not really accurate, but this was how the old code used | |
434 | to work. */ | |
435 | shndx_hdr = &elf_symtab_shndx_list (ibfd)->hdr; | |
6a40cf0c NC |
436 | /* Otherwise we do nothing. The assumption is that |
437 | the index table will not be needed. */ | |
438 | } | |
439 | } | |
6cdc0ccc AM |
440 | |
441 | /* Read the symbols. */ | |
442 | alloc_ext = NULL; | |
443 | alloc_extshndx = NULL; | |
4dd07732 | 444 | alloc_intsym = NULL; |
6cdc0ccc AM |
445 | bed = get_elf_backend_data (ibfd); |
446 | extsym_size = bed->s->sizeof_sym; | |
1f4361a7 AM |
447 | if (_bfd_mul_overflow (symcount, extsym_size, &amt)) |
448 | { | |
449 | bfd_set_error (bfd_error_file_too_big); | |
450 | intsym_buf = NULL; | |
451 | goto out; | |
452 | } | |
6cdc0ccc AM |
453 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
454 | if (extsym_buf == NULL) | |
455 | { | |
1f4361a7 | 456 | alloc_ext = bfd_malloc (amt); |
6cdc0ccc AM |
457 | extsym_buf = alloc_ext; |
458 | } | |
459 | if (extsym_buf == NULL | |
460 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
461 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
462 | { | |
463 | intsym_buf = NULL; | |
464 | goto out; | |
465 | } | |
466 | ||
467 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
468 | extshndx_buf = NULL; | |
469 | else | |
470 | { | |
1f4361a7 AM |
471 | if (_bfd_mul_overflow (symcount, sizeof (Elf_External_Sym_Shndx), &amt)) |
472 | { | |
473 | bfd_set_error (bfd_error_file_too_big); | |
474 | intsym_buf = NULL; | |
475 | goto out; | |
476 | } | |
6cdc0ccc AM |
477 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
478 | if (extshndx_buf == NULL) | |
479 | { | |
1f4361a7 | 480 | alloc_extshndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt); |
6cdc0ccc AM |
481 | extshndx_buf = alloc_extshndx; |
482 | } | |
483 | if (extshndx_buf == NULL | |
484 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
485 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
486 | { | |
487 | intsym_buf = NULL; | |
488 | goto out; | |
489 | } | |
490 | } | |
491 | ||
492 | if (intsym_buf == NULL) | |
493 | { | |
1f4361a7 AM |
494 | if (_bfd_mul_overflow (symcount, sizeof (Elf_Internal_Sym), &amt)) |
495 | { | |
496 | bfd_set_error (bfd_error_file_too_big); | |
497 | goto out; | |
498 | } | |
499 | alloc_intsym = (Elf_Internal_Sym *) bfd_malloc (amt); | |
4dd07732 | 500 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
501 | if (intsym_buf == NULL) |
502 | goto out; | |
503 | } | |
504 | ||
505 | /* Convert the symbols to internal form. */ | |
506 | isymend = intsym_buf + symcount; | |
a50b1753 | 507 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 508 | shndx = extshndx_buf; |
6cdc0ccc AM |
509 | isym < isymend; |
510 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
511 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
512 | { | |
513 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 514 | /* xgettext:c-format */ |
871b3ab2 | 515 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 516 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 517 | ibfd, (unsigned long) symoffset); |
c9594989 | 518 | free (alloc_intsym); |
8384fb8f AM |
519 | intsym_buf = NULL; |
520 | goto out; | |
521 | } | |
6cdc0ccc AM |
522 | |
523 | out: | |
c9594989 AM |
524 | free (alloc_ext); |
525 | free (alloc_extshndx); | |
6cdc0ccc AM |
526 | |
527 | return intsym_buf; | |
528 | } | |
529 | ||
5cab59f6 AM |
530 | /* Look up a symbol name. */ |
531 | const char * | |
be8dd2ca AM |
532 | bfd_elf_sym_name (bfd *abfd, |
533 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
534 | Elf_Internal_Sym *isym, |
535 | asection *sym_sec) | |
5cab59f6 | 536 | { |
26c61ae5 | 537 | const char *name; |
5cab59f6 | 538 | unsigned int iname = isym->st_name; |
be8dd2ca | 539 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 540 | |
138f35cc JJ |
541 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
542 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 543 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
544 | { |
545 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
546 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
547 | } | |
548 | ||
26c61ae5 L |
549 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
550 | if (name == NULL) | |
551 | name = "(null)"; | |
552 | else if (sym_sec && *name == '\0') | |
fd361982 | 553 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
554 | |
555 | return name; | |
5cab59f6 AM |
556 | } |
557 | ||
dbb410c3 AM |
558 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
559 | sections. The first element is the flags, the rest are section | |
560 | pointers. */ | |
561 | ||
562 | typedef union elf_internal_group { | |
563 | Elf_Internal_Shdr *shdr; | |
564 | unsigned int flags; | |
565 | } Elf_Internal_Group; | |
566 | ||
b885599b AM |
567 | /* Return the name of the group signature symbol. Why isn't the |
568 | signature just a string? */ | |
569 | ||
570 | static const char * | |
217aa764 | 571 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 572 | { |
9dce4196 | 573 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
574 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
575 | Elf_External_Sym_Shndx eshndx; | |
576 | Elf_Internal_Sym isym; | |
b885599b | 577 | |
13792e9d L |
578 | /* First we need to ensure the symbol table is available. Make sure |
579 | that it is a symbol table section. */ | |
4fbb74a6 AM |
580 | if (ghdr->sh_link >= elf_numsections (abfd)) |
581 | return NULL; | |
13792e9d L |
582 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
583 | if (hdr->sh_type != SHT_SYMTAB | |
584 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
585 | return NULL; |
586 | ||
9dce4196 AM |
587 | /* Go read the symbol. */ |
588 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
589 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
590 | &isym, esym, &eshndx) == NULL) | |
b885599b | 591 | return NULL; |
9dce4196 | 592 | |
26c61ae5 | 593 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
594 | } |
595 | ||
dbb410c3 AM |
596 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
597 | ||
0a1b45a2 | 598 | static bool |
217aa764 | 599 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
600 | { |
601 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
602 | ||
603 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
604 | is set to -1 if there are no SHT_GROUP sections. */ | |
605 | if (num_group == 0) | |
606 | { | |
607 | unsigned int i, shnum; | |
608 | ||
609 | /* First count the number of groups. If we have a SHT_GROUP | |
610 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 611 | shnum = elf_numsections (abfd); |
dbb410c3 | 612 | num_group = 0; |
08a40648 | 613 | |
44534af3 | 614 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 615 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 616 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
617 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
618 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 619 | |
dbb410c3 AM |
620 | for (i = 0; i < shnum; i++) |
621 | { | |
622 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 623 | |
44534af3 | 624 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
625 | num_group += 1; |
626 | } | |
627 | ||
628 | if (num_group == 0) | |
20dbb49d L |
629 | { |
630 | num_group = (unsigned) -1; | |
631 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 632 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
633 | } |
634 | else | |
dbb410c3 AM |
635 | { |
636 | /* We keep a list of elf section headers for group sections, | |
637 | so we can find them quickly. */ | |
1f4361a7 | 638 | size_t amt; |
d0fb9a8d | 639 | |
20dbb49d | 640 | elf_tdata (abfd)->num_group = num_group; |
1f4361a7 AM |
641 | amt = num_group * sizeof (Elf_Internal_Shdr *); |
642 | elf_tdata (abfd)->group_sect_ptr | |
643 | = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
dbb410c3 | 644 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
0a1b45a2 | 645 | return false; |
dbb410c3 | 646 | num_group = 0; |
ce497010 | 647 | |
dbb410c3 AM |
648 | for (i = 0; i < shnum; i++) |
649 | { | |
650 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 651 | |
44534af3 | 652 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 653 | { |
973ffd63 | 654 | unsigned char *src; |
dbb410c3 AM |
655 | Elf_Internal_Group *dest; |
656 | ||
07d6d2b8 AM |
657 | /* Make sure the group section has a BFD section |
658 | attached to it. */ | |
659 | if (!bfd_section_from_shdr (abfd, i)) | |
0a1b45a2 | 660 | return false; |
07d6d2b8 | 661 | |
dbb410c3 AM |
662 | /* Add to list of sections. */ |
663 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
664 | num_group += 1; | |
665 | ||
666 | /* Read the raw contents. */ | |
1f4361a7 AM |
667 | BFD_ASSERT (sizeof (*dest) >= 4 && sizeof (*dest) % 4 == 0); |
668 | shdr->contents = NULL; | |
669 | if (_bfd_mul_overflow (shdr->sh_size, | |
670 | sizeof (*dest) / 4, &amt) | |
1f4361a7 | 671 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 |
2bb3687b AM |
672 | || !(shdr->contents |
673 | = _bfd_alloc_and_read (abfd, amt, shdr->sh_size))) | |
493a3386 NC |
674 | { |
675 | _bfd_error_handler | |
695344c0 | 676 | /* xgettext:c-format */ |
871b3ab2 | 677 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
678 | " header: %#" PRIx64 ""), |
679 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
680 | bfd_set_error (bfd_error_bad_value); |
681 | -- num_group; | |
493a3386 NC |
682 | continue; |
683 | } | |
708d7d0d | 684 | |
dbb410c3 AM |
685 | /* Translate raw contents, a flag word followed by an |
686 | array of elf section indices all in target byte order, | |
687 | to the flag word followed by an array of elf section | |
688 | pointers. */ | |
689 | src = shdr->contents + shdr->sh_size; | |
690 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 691 | |
dbb410c3 AM |
692 | while (1) |
693 | { | |
694 | unsigned int idx; | |
695 | ||
696 | src -= 4; | |
697 | --dest; | |
698 | idx = H_GET_32 (abfd, src); | |
699 | if (src == shdr->contents) | |
700 | { | |
327301a4 | 701 | dest->shdr = NULL; |
dbb410c3 | 702 | dest->flags = idx; |
b885599b AM |
703 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
704 | shdr->bfd_section->flags | |
705 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
706 | break; |
707 | } | |
4bba0fb1 | 708 | if (idx < shnum) |
bae363f1 L |
709 | { |
710 | dest->shdr = elf_elfsections (abfd)[idx]; | |
711 | /* PR binutils/23199: All sections in a | |
712 | section group should be marked with | |
713 | SHF_GROUP. But some tools generate | |
714 | broken objects without SHF_GROUP. Fix | |
715 | them up here. */ | |
716 | dest->shdr->sh_flags |= SHF_GROUP; | |
717 | } | |
4bba0fb1 AM |
718 | if (idx >= shnum |
719 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 720 | { |
4eca0228 | 721 | _bfd_error_handler |
4bba0fb1 AM |
722 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
723 | abfd, i); | |
724 | dest->shdr = NULL; | |
dbb410c3 | 725 | } |
dbb410c3 AM |
726 | } |
727 | } | |
728 | } | |
493a3386 NC |
729 | |
730 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
731 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
732 | { | |
733 | elf_tdata (abfd)->num_group = num_group; | |
734 | ||
735 | /* If all groups are invalid then fail. */ | |
736 | if (num_group == 0) | |
737 | { | |
738 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
739 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 740 | _bfd_error_handler |
871b3ab2 | 741 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
742 | bfd_set_error (bfd_error_bad_value); |
743 | } | |
744 | } | |
dbb410c3 AM |
745 | } |
746 | } | |
747 | ||
748 | if (num_group != (unsigned) -1) | |
749 | { | |
564e11c9 JW |
750 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
751 | unsigned int j; | |
dbb410c3 | 752 | |
564e11c9 | 753 | for (j = 0; j < num_group; j++) |
dbb410c3 | 754 | { |
564e11c9 JW |
755 | /* Begin search from previous found group. */ |
756 | unsigned i = (j + search_offset) % num_group; | |
757 | ||
dbb410c3 | 758 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 759 | Elf_Internal_Group *idx; |
0c54f692 | 760 | bfd_size_type n_elt; |
ce497010 NC |
761 | |
762 | if (shdr == NULL) | |
763 | continue; | |
764 | ||
765 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
766 | if (idx == NULL || shdr->sh_size < 4) |
767 | { | |
768 | /* See PR 21957 for a reproducer. */ | |
769 | /* xgettext:c-format */ | |
871b3ab2 | 770 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
771 | abfd, shdr->bfd_section); |
772 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
773 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 774 | return false; |
0c54f692 | 775 | } |
ce497010 | 776 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
777 | |
778 | /* Look through this group's sections to see if current | |
779 | section is a member. */ | |
780 | while (--n_elt != 0) | |
781 | if ((++idx)->shdr == hdr) | |
782 | { | |
e0e8c97f | 783 | asection *s = NULL; |
dbb410c3 AM |
784 | |
785 | /* We are a member of this group. Go looking through | |
786 | other members to see if any others are linked via | |
787 | next_in_group. */ | |
788 | idx = (Elf_Internal_Group *) shdr->contents; | |
789 | n_elt = shdr->sh_size / 4; | |
790 | while (--n_elt != 0) | |
4bba0fb1 AM |
791 | if ((++idx)->shdr != NULL |
792 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 793 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
794 | break; |
795 | if (n_elt != 0) | |
796 | { | |
dbb410c3 AM |
797 | /* Snarf the group name from other member, and |
798 | insert current section in circular list. */ | |
945906ff AM |
799 | elf_group_name (newsect) = elf_group_name (s); |
800 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
801 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
802 | } |
803 | else | |
804 | { | |
dbb410c3 AM |
805 | const char *gname; |
806 | ||
b885599b AM |
807 | gname = group_signature (abfd, shdr); |
808 | if (gname == NULL) | |
0a1b45a2 | 809 | return false; |
945906ff | 810 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
811 | |
812 | /* Start a circular list with one element. */ | |
945906ff | 813 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 814 | } |
b885599b | 815 | |
9dce4196 AM |
816 | /* If the group section has been created, point to the |
817 | new member. */ | |
dbb410c3 | 818 | if (shdr->bfd_section != NULL) |
945906ff | 819 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 820 | |
564e11c9 JW |
821 | elf_tdata (abfd)->group_search_offset = i; |
822 | j = num_group - 1; | |
dbb410c3 AM |
823 | break; |
824 | } | |
825 | } | |
826 | } | |
827 | ||
945906ff | 828 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 829 | { |
695344c0 | 830 | /* xgettext:c-format */ |
871b3ab2 | 831 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 832 | abfd, newsect); |
0a1b45a2 | 833 | return false; |
dbb410c3 | 834 | } |
0a1b45a2 | 835 | return true; |
dbb410c3 AM |
836 | } |
837 | ||
0a1b45a2 | 838 | bool |
dd863624 | 839 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
840 | { |
841 | unsigned int i; | |
842 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
0a1b45a2 | 843 | bool result = true; |
dd863624 L |
844 | asection *s; |
845 | ||
846 | /* Process SHF_LINK_ORDER. */ | |
847 | for (s = abfd->sections; s != NULL; s = s->next) | |
848 | { | |
849 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
850 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
851 | { | |
852 | unsigned int elfsec = this_hdr->sh_link; | |
b71702f1 NC |
853 | /* An sh_link value of 0 is now allowed. It indicates that linked |
854 | to section has already been discarded, but that the current | |
855 | section has been retained for some other reason. This linking | |
856 | section is still a candidate for later garbage collection | |
857 | however. */ | |
dd863624 L |
858 | if (elfsec == 0) |
859 | { | |
b71702f1 | 860 | elf_linked_to_section (s) = NULL; |
dd863624 L |
861 | } |
862 | else | |
863 | { | |
91d6fa6a | 864 | asection *linksec = NULL; |
25bbc984 | 865 | |
4fbb74a6 AM |
866 | if (elfsec < elf_numsections (abfd)) |
867 | { | |
868 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 869 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 870 | } |
25bbc984 L |
871 | |
872 | /* PR 1991, 2008: | |
873 | Some strip/objcopy may leave an incorrect value in | |
874 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 875 | if (linksec == NULL) |
25bbc984 | 876 | { |
4eca0228 | 877 | _bfd_error_handler |
695344c0 | 878 | /* xgettext:c-format */ |
871b3ab2 | 879 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 880 | s->owner, elfsec, s); |
0a1b45a2 | 881 | result = false; |
25bbc984 L |
882 | } |
883 | ||
91d6fa6a | 884 | elf_linked_to_section (s) = linksec; |
dd863624 L |
885 | } |
886 | } | |
53720c49 AM |
887 | else if (this_hdr->sh_type == SHT_GROUP |
888 | && elf_next_in_group (s) == NULL) | |
889 | { | |
4eca0228 | 890 | _bfd_error_handler |
695344c0 | 891 | /* xgettext:c-format */ |
871b3ab2 | 892 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 | 893 | abfd, elf_section_data (s)->this_idx); |
0a1b45a2 | 894 | result = false; |
53720c49 | 895 | } |
dd863624 | 896 | } |
3d7f7666 | 897 | |
dd863624 | 898 | /* Process section groups. */ |
3d7f7666 L |
899 | if (num_group == (unsigned) -1) |
900 | return result; | |
901 | ||
902 | for (i = 0; i < num_group; i++) | |
903 | { | |
904 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
905 | Elf_Internal_Group *idx; |
906 | unsigned int n_elt; | |
3d7f7666 | 907 | |
11c6a7c6 AM |
908 | /* PR binutils/18758: Beware of corrupt binaries with invalid |
909 | group data. */ | |
4b0e8a5f NC |
910 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) |
911 | { | |
4eca0228 | 912 | _bfd_error_handler |
695344c0 | 913 | /* xgettext:c-format */ |
871b3ab2 | 914 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f | 915 | abfd, i); |
0a1b45a2 | 916 | result = false; |
4b0e8a5f NC |
917 | continue; |
918 | } | |
919 | ||
920 | idx = (Elf_Internal_Group *) shdr->contents; | |
921 | n_elt = shdr->sh_size / 4; | |
1b786873 | 922 | |
3d7f7666 | 923 | while (--n_elt != 0) |
24d3e51b NC |
924 | { |
925 | ++ idx; | |
926 | ||
927 | if (idx->shdr == NULL) | |
928 | continue; | |
929 | else if (idx->shdr->bfd_section) | |
930 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
931 | else if (idx->shdr->sh_type != SHT_RELA |
932 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
933 | { |
934 | /* There are some unknown sections in the group. */ | |
935 | _bfd_error_handler | |
936 | /* xgettext:c-format */ | |
871b3ab2 | 937 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
938 | abfd, |
939 | idx->shdr->sh_type, | |
940 | bfd_elf_string_from_elf_section (abfd, | |
941 | (elf_elfheader (abfd) | |
942 | ->e_shstrndx), | |
943 | idx->shdr->sh_name), | |
944 | shdr->bfd_section); | |
0a1b45a2 | 945 | result = false; |
24d3e51b NC |
946 | } |
947 | } | |
3d7f7666 | 948 | } |
24d3e51b | 949 | |
3d7f7666 L |
950 | return result; |
951 | } | |
952 | ||
0a1b45a2 | 953 | bool |
72adc230 AM |
954 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) |
955 | { | |
956 | return elf_next_in_group (sec) != NULL; | |
957 | } | |
958 | ||
cb7f4b29 AM |
959 | const char * |
960 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
961 | { | |
962 | if (elf_sec_group (sec) != NULL) | |
963 | return elf_group_name (sec); | |
964 | return NULL; | |
965 | } | |
966 | ||
f6fe1ccd L |
967 | static char * |
968 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
969 | { | |
970 | unsigned int len = strlen (name); | |
971 | char *new_name = bfd_alloc (abfd, len + 2); | |
972 | if (new_name == NULL) | |
973 | return NULL; | |
974 | new_name[0] = '.'; | |
975 | new_name[1] = 'z'; | |
976 | memcpy (new_name + 2, name + 1, len); | |
977 | return new_name; | |
978 | } | |
979 | ||
980 | static char * | |
981 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
982 | { | |
983 | unsigned int len = strlen (name); | |
984 | char *new_name = bfd_alloc (abfd, len); | |
985 | if (new_name == NULL) | |
986 | return NULL; | |
987 | new_name[0] = '.'; | |
988 | memcpy (new_name + 1, name + 2, len - 1); | |
989 | return new_name; | |
990 | } | |
991 | ||
cc5277b1 ML |
992 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
993 | ||
994 | struct lto_section | |
995 | { | |
996 | int16_t major_version; | |
997 | int16_t minor_version; | |
998 | unsigned char slim_object; | |
999 | ||
1000 | /* Flags is a private field that is not defined publicly. */ | |
1001 | uint16_t flags; | |
1002 | }; | |
1003 | ||
252b5132 RH |
1004 | /* Make a BFD section from an ELF section. We store a pointer to the |
1005 | BFD section in the bfd_section field of the header. */ | |
1006 | ||
0a1b45a2 | 1007 | bool |
217aa764 AM |
1008 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1009 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1010 | const char *name, |
1011 | int shindex) | |
252b5132 RH |
1012 | { |
1013 | asection *newsect; | |
1014 | flagword flags; | |
9c5bfbb7 | 1015 | const struct elf_backend_data *bed; |
502794d4 | 1016 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
1017 | |
1018 | if (hdr->bfd_section != NULL) | |
0a1b45a2 | 1019 | return true; |
252b5132 RH |
1020 | |
1021 | newsect = bfd_make_section_anyway (abfd, name); | |
1022 | if (newsect == NULL) | |
0a1b45a2 | 1023 | return false; |
252b5132 | 1024 | |
1829f4b2 AM |
1025 | hdr->bfd_section = newsect; |
1026 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1027 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1028 | |
2f89ff8d L |
1029 | /* Always use the real type/flags. */ |
1030 | elf_section_type (newsect) = hdr->sh_type; | |
1031 | elf_section_flags (newsect) = hdr->sh_flags; | |
1032 | ||
252b5132 RH |
1033 | newsect->filepos = hdr->sh_offset; |
1034 | ||
252b5132 RH |
1035 | flags = SEC_NO_FLAGS; |
1036 | if (hdr->sh_type != SHT_NOBITS) | |
1037 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1038 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1039 | flags |= SEC_GROUP; |
252b5132 RH |
1040 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1041 | { | |
1042 | flags |= SEC_ALLOC; | |
1043 | if (hdr->sh_type != SHT_NOBITS) | |
1044 | flags |= SEC_LOAD; | |
1045 | } | |
1046 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1047 | flags |= SEC_READONLY; | |
1048 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1049 | flags |= SEC_CODE; | |
1050 | else if ((flags & SEC_LOAD) != 0) | |
1051 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1052 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1053 | { | |
1054 | flags |= SEC_MERGE; | |
1055 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1056 | } |
84865015 NC |
1057 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1058 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1059 | if (hdr->sh_flags & SHF_GROUP) |
1060 | if (!setup_group (abfd, hdr, newsect)) | |
0a1b45a2 | 1061 | return false; |
13ae64f3 JJ |
1062 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1063 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1064 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1065 | flags |= SEC_EXCLUDE; | |
252b5132 | 1066 | |
df3a023b AM |
1067 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1068 | { | |
1069 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1070 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1071 | byte. */ | |
df3a023b AM |
1072 | case ELFOSABI_GNU: |
1073 | case ELFOSABI_FREEBSD: | |
99fabbc9 JL |
1074 | if ((hdr->sh_flags & SHF_GNU_RETAIN) != 0) |
1075 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_retain; | |
1076 | /* Fall through */ | |
1077 | case ELFOSABI_NONE: | |
df3a023b AM |
1078 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) |
1079 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1080 | break; | |
1081 | } | |
1082 | ||
3d2b39cf | 1083 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1084 | { |
3d2b39cf L |
1085 | /* The debugging sections appear to be recognized only by name, |
1086 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1087 | if (name [0] == '.') |
1088 | { | |
3f3328b8 ML |
1089 | if (startswith (name, ".debug") |
1090 | || startswith (name, ".gnu.debuglto_.debug_") | |
1091 | || startswith (name, ".gnu.linkonce.wi.") | |
1092 | || startswith (name, ".zdebug")) | |
bb294208 | 1093 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; |
3f3328b8 ML |
1094 | else if (startswith (name, GNU_BUILD_ATTRS_SECTION_NAME) |
1095 | || startswith (name, ".note.gnu")) | |
502794d4 CE |
1096 | { |
1097 | flags |= SEC_ELF_OCTETS; | |
1098 | opb = 1; | |
1099 | } | |
3f3328b8 ML |
1100 | else if (startswith (name, ".line") |
1101 | || startswith (name, ".stab") | |
bb294208 | 1102 | || strcmp (name, ".gdb_index") == 0) |
3d2b39cf L |
1103 | flags |= SEC_DEBUGGING; |
1104 | } | |
1105 | } | |
252b5132 | 1106 | |
502794d4 CE |
1107 | if (!bfd_set_section_vma (newsect, hdr->sh_addr / opb) |
1108 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1f9b1a84 AM |
1109 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign |
1110 | & -hdr->sh_addralign))) | |
0a1b45a2 | 1111 | return false; |
502794d4 | 1112 | |
252b5132 RH |
1113 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
1114 | only link a single copy of the section. This is used to support | |
1115 | g++. g++ will emit each template expansion in its own section. | |
1116 | The symbols will be defined as weak, so that multiple definitions | |
1117 | are permitted. The GNU linker extension is to actually discard | |
1118 | all but one of the sections. */ | |
08dedd66 | 1119 | if (startswith (name, ".gnu.linkonce") |
b885599b | 1120 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1121 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1122 | ||
8c803a2d | 1123 | if (!bfd_set_section_flags (newsect, flags)) |
0a1b45a2 | 1124 | return false; |
8c803a2d | 1125 | |
fa152c49 JW |
1126 | bed = get_elf_backend_data (abfd); |
1127 | if (bed->elf_backend_section_flags) | |
8c803a2d | 1128 | if (!bed->elf_backend_section_flags (hdr)) |
0a1b45a2 | 1129 | return false; |
fa152c49 | 1130 | |
718175fa JK |
1131 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1132 | separate debug info files which may have the segments offsets corrupted. | |
1133 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1134 | if (hdr->sh_type == SHT_NOTE) | |
1135 | { | |
baea7ef1 | 1136 | bfd_byte *contents; |
718175fa | 1137 | |
baea7ef1 | 1138 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
0a1b45a2 | 1139 | return false; |
718175fa | 1140 | |
276da9b3 L |
1141 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1142 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1143 | free (contents); |
1144 | } | |
1145 | ||
8c803a2d | 1146 | if ((newsect->flags & SEC_ALLOC) != 0) |
252b5132 RH |
1147 | { |
1148 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1149 | unsigned int i, nload; |
1150 | ||
1151 | /* Some ELF linkers produce binaries with all the program header | |
1152 | p_paddr fields zero. If we have such a binary with more than | |
1153 | one PT_LOAD header, then leave the section lma equal to vma | |
1154 | so that we don't create sections with overlapping lma. */ | |
1155 | phdr = elf_tdata (abfd)->phdr; | |
1156 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1157 | if (phdr->p_paddr != 0) | |
1158 | break; | |
1159 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1160 | ++nload; | |
1161 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
0a1b45a2 | 1162 | return true; |
252b5132 | 1163 | |
252b5132 RH |
1164 | phdr = elf_tdata (abfd)->phdr; |
1165 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1166 | { | |
86b2281f AM |
1167 | if (((phdr->p_type == PT_LOAD |
1168 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1169 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1170 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1171 | { |
8c803a2d | 1172 | if ((newsect->flags & SEC_LOAD) == 0) |
88967714 | 1173 | newsect->lma = (phdr->p_paddr |
502794d4 | 1174 | + hdr->sh_addr - phdr->p_vaddr) / opb; |
88967714 AM |
1175 | else |
1176 | /* We used to use the same adjustment for SEC_LOAD | |
1177 | sections, but that doesn't work if the segment | |
1178 | is packed with code from multiple VMAs. | |
1179 | Instead we calculate the section LMA based on | |
1180 | the segment LMA. It is assumed that the | |
1181 | segment will contain sections with contiguous | |
1182 | LMAs, even if the VMAs are not. */ | |
1183 | newsect->lma = (phdr->p_paddr | |
502794d4 | 1184 | + hdr->sh_offset - phdr->p_offset) / opb; |
88967714 AM |
1185 | |
1186 | /* With contiguous segments, we can't tell from file | |
1187 | offsets whether a section with zero size should | |
1188 | be placed at the end of one segment or the | |
1189 | beginning of the next. Decide based on vaddr. */ | |
1190 | if (hdr->sh_addr >= phdr->p_vaddr | |
1191 | && (hdr->sh_addr + hdr->sh_size | |
1192 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1193 | break; | |
252b5132 RH |
1194 | } |
1195 | } | |
1196 | } | |
1197 | ||
4a114e3e L |
1198 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1199 | .zdebug_*, after the section flags is set. */ | |
8c803a2d | 1200 | if ((newsect->flags & SEC_DEBUGGING) |
4a114e3e L |
1201 | && ((name[1] == 'd' && name[6] == '_') |
1202 | || (name[1] == 'z' && name[7] == '_'))) | |
1203 | { | |
1204 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1205 | int compression_header_size; |
dab394de | 1206 | bfd_size_type uncompressed_size; |
4207142d | 1207 | unsigned int uncompressed_align_power; |
0a1b45a2 | 1208 | bool compressed |
151411f8 | 1209 | = bfd_is_section_compressed_with_header (abfd, newsect, |
dab394de | 1210 | &compression_header_size, |
4207142d MW |
1211 | &uncompressed_size, |
1212 | &uncompressed_align_power); | |
151411f8 | 1213 | if (compressed) |
4a114e3e L |
1214 | { |
1215 | /* Compressed section. Check if we should decompress. */ | |
1216 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1217 | action = decompress; | |
1218 | } | |
151411f8 L |
1219 | |
1220 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1221 | section. Check if we should compress. */ | |
1222 | if (action == nothing) | |
4a114e3e | 1223 | { |
151411f8 L |
1224 | if (newsect->size != 0 |
1225 | && (abfd->flags & BFD_COMPRESS) | |
1226 | && compression_header_size >= 0 | |
dab394de | 1227 | && uncompressed_size > 0 |
151411f8 L |
1228 | && (!compressed |
1229 | || ((compression_header_size > 0) | |
1230 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1231 | action = compress; |
151411f8 | 1232 | else |
0a1b45a2 | 1233 | return true; |
4a114e3e L |
1234 | } |
1235 | ||
151411f8 | 1236 | if (action == compress) |
4a114e3e | 1237 | { |
4a114e3e L |
1238 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1239 | { | |
4eca0228 | 1240 | _bfd_error_handler |
695344c0 | 1241 | /* xgettext:c-format */ |
871b3ab2 | 1242 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e | 1243 | abfd, name); |
0a1b45a2 | 1244 | return false; |
4a114e3e | 1245 | } |
151411f8 L |
1246 | } |
1247 | else | |
1248 | { | |
4a114e3e L |
1249 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1250 | { | |
4eca0228 | 1251 | _bfd_error_handler |
695344c0 | 1252 | /* xgettext:c-format */ |
11c6a7c6 AM |
1253 | (_("%pB: unable to initialize decompress status" |
1254 | " for section %s"), | |
4a114e3e | 1255 | abfd, name); |
0a1b45a2 | 1256 | return false; |
4a114e3e | 1257 | } |
151411f8 L |
1258 | } |
1259 | ||
f6fe1ccd | 1260 | if (abfd->is_linker_input) |
151411f8 | 1261 | { |
f6fe1ccd L |
1262 | if (name[1] == 'z' |
1263 | && (action == decompress | |
1264 | || (action == compress | |
1265 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1266 | { |
f6fe1ccd L |
1267 | /* Convert section name from .zdebug_* to .debug_* so |
1268 | that linker will consider this section as a debug | |
1269 | section. */ | |
1270 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 | 1271 | if (new_name == NULL) |
0a1b45a2 | 1272 | return false; |
fd361982 | 1273 | bfd_rename_section (newsect, new_name); |
151411f8 | 1274 | } |
4a114e3e | 1275 | } |
f6fe1ccd L |
1276 | else |
1277 | /* For objdump, don't rename the section. For objcopy, delay | |
1278 | section rename to elf_fake_sections. */ | |
1279 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1280 | } |
1281 | ||
cc5277b1 ML |
1282 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1283 | section. */ | |
3f3328b8 | 1284 | if (startswith (name, ".gnu.lto_.lto.")) |
cc5277b1 ML |
1285 | { |
1286 | struct lto_section lsection; | |
1287 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1288 | sizeof (struct lto_section))) | |
1289 | abfd->lto_slim_object = lsection.slim_object; | |
1290 | } | |
1291 | ||
0a1b45a2 | 1292 | return true; |
252b5132 RH |
1293 | } |
1294 | ||
84865015 NC |
1295 | const char *const bfd_elf_section_type_names[] = |
1296 | { | |
252b5132 RH |
1297 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1298 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1299 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1300 | }; | |
1301 | ||
1049f94e | 1302 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1303 | output, and the reloc is against an external symbol, and nothing |
1304 | has given us any additional addend, the resulting reloc will also | |
1305 | be against the same symbol. In such a case, we don't want to | |
1306 | change anything about the way the reloc is handled, since it will | |
1307 | all be done at final link time. Rather than put special case code | |
1308 | into bfd_perform_relocation, all the reloc types use this howto | |
2dfa8341 | 1309 | function, or should call this function for relocatable output. */ |
252b5132 | 1310 | |
252b5132 | 1311 | bfd_reloc_status_type |
217aa764 AM |
1312 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1313 | arelent *reloc_entry, | |
1314 | asymbol *symbol, | |
1315 | void *data ATTRIBUTE_UNUSED, | |
1316 | asection *input_section, | |
1317 | bfd *output_bfd, | |
1318 | char **error_message ATTRIBUTE_UNUSED) | |
1319 | { | |
1320 | if (output_bfd != NULL | |
252b5132 RH |
1321 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1322 | && (! reloc_entry->howto->partial_inplace | |
1323 | || reloc_entry->addend == 0)) | |
1324 | { | |
1325 | reloc_entry->address += input_section->output_offset; | |
1326 | return bfd_reloc_ok; | |
1327 | } | |
1328 | ||
2dfa8341 AM |
1329 | /* In some cases the relocation should be treated as output section |
1330 | relative, as when linking ELF DWARF into PE COFF. Many ELF | |
1331 | targets lack section relative relocations and instead use | |
1332 | ordinary absolute relocations for references between DWARF | |
1333 | sections. That is arguably a bug in those targets but it happens | |
1334 | to work for the usual case of linking to non-loaded ELF debug | |
1335 | sections with VMAs forced to zero. PE COFF on the other hand | |
1336 | doesn't allow a section VMA of zero. */ | |
1337 | if (output_bfd == NULL | |
1338 | && !reloc_entry->howto->pc_relative | |
1339 | && (symbol->section->flags & SEC_DEBUGGING) != 0 | |
1340 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
1341 | reloc_entry->addend -= symbol->section->output_section->vma; | |
1342 | ||
252b5132 RH |
1343 | return bfd_reloc_continue; |
1344 | } | |
1345 | \f | |
84865015 NC |
1346 | /* Returns TRUE if section A matches section B. |
1347 | Names, addresses and links may be different, but everything else | |
1348 | should be the same. */ | |
1349 | ||
0a1b45a2 | 1350 | static bool |
5522f910 NC |
1351 | section_match (const Elf_Internal_Shdr * a, |
1352 | const Elf_Internal_Shdr * b) | |
84865015 | 1353 | { |
ac85e67c AM |
1354 | if (a->sh_type != b->sh_type |
1355 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1356 | || a->sh_addralign != b->sh_addralign | |
1357 | || a->sh_entsize != b->sh_entsize) | |
0a1b45a2 | 1358 | return false; |
ac85e67c AM |
1359 | if (a->sh_type == SHT_SYMTAB |
1360 | || a->sh_type == SHT_STRTAB) | |
0a1b45a2 | 1361 | return true; |
ac85e67c | 1362 | return a->sh_size == b->sh_size; |
84865015 NC |
1363 | } |
1364 | ||
1365 | /* Find a section in OBFD that has the same characteristics | |
1366 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1367 | none can be found. Check's section HINT first, as this is likely | |
1368 | to be the correct section. */ | |
1369 | ||
1370 | static unsigned int | |
5cc4ca83 ST |
1371 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1372 | const unsigned int hint) | |
84865015 NC |
1373 | { |
1374 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1375 | unsigned int i; | |
1376 | ||
a55c9876 NC |
1377 | BFD_ASSERT (iheader != NULL); |
1378 | ||
1379 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1380 | if (hint < elf_numsections (obfd) |
1381 | && oheaders[hint] != NULL | |
a55c9876 | 1382 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1383 | return hint; |
1384 | ||
1385 | for (i = 1; i < elf_numsections (obfd); i++) | |
1386 | { | |
1387 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1388 | ||
a55c9876 NC |
1389 | if (oheader == NULL) |
1390 | continue; | |
84865015 NC |
1391 | if (section_match (oheader, iheader)) |
1392 | /* FIXME: Do we care if there is a potential for | |
1393 | multiple matches ? */ | |
1394 | return i; | |
1395 | } | |
1396 | ||
1397 | return SHN_UNDEF; | |
1398 | } | |
1399 | ||
5522f910 NC |
1400 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1401 | Processor specific section, based upon a matching input section. | |
1402 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1403 | |
0a1b45a2 | 1404 | static bool |
5522f910 NC |
1405 | copy_special_section_fields (const bfd *ibfd, |
1406 | bfd *obfd, | |
1407 | const Elf_Internal_Shdr *iheader, | |
1408 | Elf_Internal_Shdr *oheader, | |
1409 | const unsigned int secnum) | |
1410 | { | |
1411 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
11c6a7c6 AM |
1412 | const Elf_Internal_Shdr **iheaders |
1413 | = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
0a1b45a2 | 1414 | bool changed = false; |
5522f910 NC |
1415 | unsigned int sh_link; |
1416 | ||
1417 | if (oheader->sh_type == SHT_NOBITS) | |
1418 | { | |
1419 | /* This is a feature for objcopy --only-keep-debug: | |
1420 | When a section's type is changed to NOBITS, we preserve | |
1421 | the sh_link and sh_info fields so that they can be | |
1422 | matched up with the original. | |
1423 | ||
1424 | Note: Strictly speaking these assignments are wrong. | |
1425 | The sh_link and sh_info fields should point to the | |
1426 | relevent sections in the output BFD, which may not be in | |
1427 | the same location as they were in the input BFD. But | |
1428 | the whole point of this action is to preserve the | |
1429 | original values of the sh_link and sh_info fields, so | |
1430 | that they can be matched up with the section headers in | |
1431 | the original file. So strictly speaking we may be | |
1432 | creating an invalid ELF file, but it is only for a file | |
1433 | that just contains debug info and only for sections | |
1434 | without any contents. */ | |
1435 | if (oheader->sh_link == 0) | |
1436 | oheader->sh_link = iheader->sh_link; | |
1437 | if (oheader->sh_info == 0) | |
1438 | oheader->sh_info = iheader->sh_info; | |
0a1b45a2 | 1439 | return true; |
5522f910 NC |
1440 | } |
1441 | ||
1442 | /* Allow the target a chance to decide how these fields should be set. */ | |
a859124d AM |
1443 | if (bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1444 | iheader, oheader)) | |
0a1b45a2 | 1445 | return true; |
5522f910 NC |
1446 | |
1447 | /* We have an iheader which might match oheader, and which has non-zero | |
1448 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1449 | the section in the output bfd which corresponds to the linked section | |
1450 | in the input bfd. */ | |
1451 | if (iheader->sh_link != SHN_UNDEF) | |
1452 | { | |
4f3ca05b NC |
1453 | /* See PR 20931 for a reproducer. */ |
1454 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1455 | { | |
76cfced5 | 1456 | _bfd_error_handler |
4f3ca05b | 1457 | /* xgettext:c-format */ |
9793eb77 | 1458 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b | 1459 | ibfd, iheader->sh_link, secnum); |
0a1b45a2 | 1460 | return false; |
4f3ca05b NC |
1461 | } |
1462 | ||
5522f910 NC |
1463 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1464 | if (sh_link != SHN_UNDEF) | |
1465 | { | |
1466 | oheader->sh_link = sh_link; | |
0a1b45a2 | 1467 | changed = true; |
5522f910 NC |
1468 | } |
1469 | else | |
1470 | /* FIXME: Should we install iheader->sh_link | |
1471 | if we could not find a match ? */ | |
76cfced5 | 1472 | _bfd_error_handler |
695344c0 | 1473 | /* xgettext:c-format */ |
9793eb77 | 1474 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1475 | } |
1476 | ||
1477 | if (iheader->sh_info) | |
1478 | { | |
1479 | /* The sh_info field can hold arbitrary information, but if the | |
1480 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1481 | section index. */ | |
1482 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1483 | { | |
1484 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1485 | iheader->sh_info); | |
1486 | if (sh_link != SHN_UNDEF) | |
1487 | oheader->sh_flags |= SHF_INFO_LINK; | |
1488 | } | |
1489 | else | |
1490 | /* No idea what it means - just copy it. */ | |
1491 | sh_link = iheader->sh_info; | |
1492 | ||
1493 | if (sh_link != SHN_UNDEF) | |
1494 | { | |
1495 | oheader->sh_info = sh_link; | |
0a1b45a2 | 1496 | changed = true; |
5522f910 NC |
1497 | } |
1498 | else | |
76cfced5 | 1499 | _bfd_error_handler |
695344c0 | 1500 | /* xgettext:c-format */ |
9793eb77 | 1501 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1502 | } |
1503 | ||
1504 | return changed; | |
1505 | } | |
07d6d2b8 | 1506 | |
0ac4564e L |
1507 | /* Copy the program header and other data from one object module to |
1508 | another. */ | |
252b5132 | 1509 | |
0a1b45a2 | 1510 | bool |
217aa764 | 1511 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1512 | { |
11c6a7c6 AM |
1513 | const Elf_Internal_Shdr **iheaders |
1514 | = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
5522f910 NC |
1515 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); |
1516 | const struct elf_backend_data *bed; | |
84865015 NC |
1517 | unsigned int i; |
1518 | ||
2d502050 | 1519 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1520 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
0a1b45a2 | 1521 | return true; |
2d502050 | 1522 | |
57b828ef L |
1523 | if (!elf_flags_init (obfd)) |
1524 | { | |
1525 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
0a1b45a2 | 1526 | elf_flags_init (obfd) = true; |
57b828ef | 1527 | } |
2d502050 | 1528 | |
0ac4564e | 1529 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1530 | |
1531 | /* Also copy the EI_OSABI field. */ | |
1532 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1533 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1534 | |
5522f910 NC |
1535 | /* If set, copy the EI_ABIVERSION field. */ |
1536 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1537 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1538 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1539 | |
104d59d1 JM |
1540 | /* Copy object attributes. */ |
1541 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1542 | |
84865015 | 1543 | if (iheaders == NULL || oheaders == NULL) |
0a1b45a2 | 1544 | return true; |
63b9bbb7 | 1545 | |
5522f910 NC |
1546 | bed = get_elf_backend_data (obfd); |
1547 | ||
1548 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1549 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1550 | { |
84865015 NC |
1551 | unsigned int j; |
1552 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1553 | |
5522f910 NC |
1554 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1555 | because of a special case need for generating separate debug info | |
1556 | files. See below for more details. */ | |
84865015 NC |
1557 | if (oheader == NULL |
1558 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1559 | && oheader->sh_type < SHT_LOOS)) |
1560 | continue; | |
1561 | ||
1562 | /* Ignore empty sections, and sections whose | |
1563 | fields have already been initialised. */ | |
1564 | if (oheader->sh_size == 0 | |
84865015 NC |
1565 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1566 | continue; | |
63b9bbb7 | 1567 | |
84865015 | 1568 | /* Scan for the matching section in the input bfd. |
11c6a7c6 AM |
1569 | First we try for a direct mapping between the input and |
1570 | output sections. */ | |
5522f910 NC |
1571 | for (j = 1; j < elf_numsections (ibfd); j++) |
1572 | { | |
1573 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1574 | ||
1575 | if (iheader == NULL) | |
1576 | continue; | |
1577 | ||
1578 | if (oheader->bfd_section != NULL | |
1579 | && iheader->bfd_section != NULL | |
1580 | && iheader->bfd_section->output_section != NULL | |
1581 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1582 | { | |
11c6a7c6 AM |
1583 | /* We have found a connection from the input section to |
1584 | the output section. Attempt to copy the header fields. | |
1585 | If this fails then do not try any further sections - | |
1586 | there should only be a one-to-one mapping between | |
1587 | input and output. */ | |
1588 | if (!copy_special_section_fields (ibfd, obfd, | |
1589 | iheader, oheader, i)) | |
5522f910 NC |
1590 | j = elf_numsections (ibfd); |
1591 | break; | |
1592 | } | |
1593 | } | |
1594 | ||
1595 | if (j < elf_numsections (ibfd)) | |
1596 | continue; | |
1597 | ||
1598 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1599 | Unfortunately we cannot compare names as the output string table |
1600 | is empty, so instead we check size, address and type. */ | |
1601 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1602 | { | |
5522f910 | 1603 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1604 | |
5522f910 NC |
1605 | if (iheader == NULL) |
1606 | continue; | |
1607 | ||
1608 | /* Try matching fields in the input section's header. | |
1609 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1610 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1611 | input type. */ | |
1612 | if ((oheader->sh_type == SHT_NOBITS | |
1613 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1614 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1615 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1616 | && iheader->sh_addralign == oheader->sh_addralign |
1617 | && iheader->sh_entsize == oheader->sh_entsize | |
1618 | && iheader->sh_size == oheader->sh_size | |
1619 | && iheader->sh_addr == oheader->sh_addr | |
1620 | && (iheader->sh_info != oheader->sh_info | |
1621 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1622 | { |
5522f910 NC |
1623 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1624 | break; | |
63b9bbb7 NC |
1625 | } |
1626 | } | |
5522f910 NC |
1627 | |
1628 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1629 | { | |
1630 | /* Final attempt. Call the backend copy function | |
1631 | with a NULL input section. */ | |
a859124d AM |
1632 | (void) bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1633 | NULL, oheader); | |
5522f910 | 1634 | } |
63b9bbb7 NC |
1635 | } |
1636 | ||
0a1b45a2 | 1637 | return true; |
2d502050 L |
1638 | } |
1639 | ||
cedc298e L |
1640 | static const char * |
1641 | get_segment_type (unsigned int p_type) | |
1642 | { | |
1643 | const char *pt; | |
1644 | switch (p_type) | |
1645 | { | |
1646 | case PT_NULL: pt = "NULL"; break; | |
1647 | case PT_LOAD: pt = "LOAD"; break; | |
1648 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1649 | case PT_INTERP: pt = "INTERP"; break; | |
1650 | case PT_NOTE: pt = "NOTE"; break; | |
1651 | case PT_SHLIB: pt = "SHLIB"; break; | |
1652 | case PT_PHDR: pt = "PHDR"; break; | |
1653 | case PT_TLS: pt = "TLS"; break; | |
1654 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1655 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1656 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1657 | default: pt = NULL; break; | |
1658 | } | |
1659 | return pt; | |
1660 | } | |
1661 | ||
f0b79d91 L |
1662 | /* Print out the program headers. */ |
1663 | ||
0a1b45a2 | 1664 | bool |
217aa764 | 1665 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1666 | { |
a50b1753 | 1667 | FILE *f = (FILE *) farg; |
252b5132 RH |
1668 | Elf_Internal_Phdr *p; |
1669 | asection *s; | |
1670 | bfd_byte *dynbuf = NULL; | |
1671 | ||
1672 | p = elf_tdata (abfd)->phdr; | |
1673 | if (p != NULL) | |
1674 | { | |
1675 | unsigned int i, c; | |
1676 | ||
1677 | fprintf (f, _("\nProgram Header:\n")); | |
1678 | c = elf_elfheader (abfd)->e_phnum; | |
1679 | for (i = 0; i < c; i++, p++) | |
1680 | { | |
cedc298e | 1681 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1682 | char buf[20]; |
1683 | ||
cedc298e | 1684 | if (pt == NULL) |
252b5132 | 1685 | { |
cedc298e L |
1686 | sprintf (buf, "0x%lx", p->p_type); |
1687 | pt = buf; | |
252b5132 | 1688 | } |
dc810e39 | 1689 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1690 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1691 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1692 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1693 | fprintf (f, " paddr 0x"); |
60b89a18 | 1694 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1695 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1696 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1697 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1698 | fprintf (f, " memsz 0x"); |
60b89a18 | 1699 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1700 | fprintf (f, " flags %c%c%c", |
1701 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1702 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1703 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1704 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1705 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1706 | fprintf (f, "\n"); |
1707 | } | |
1708 | } | |
1709 | ||
1710 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1711 | if (s != NULL) | |
1712 | { | |
cb33740c | 1713 | unsigned int elfsec; |
dc810e39 | 1714 | unsigned long shlink; |
252b5132 RH |
1715 | bfd_byte *extdyn, *extdynend; |
1716 | size_t extdynsize; | |
217aa764 | 1717 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1718 | |
1719 | fprintf (f, _("\nDynamic Section:\n")); | |
1720 | ||
eea6121a | 1721 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1722 | goto error_return; |
1723 | ||
1724 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1725 | if (elfsec == SHN_BAD) |
252b5132 | 1726 | goto error_return; |
dc810e39 | 1727 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1728 | |
1729 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1730 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1731 | ||
37c59664 AM |
1732 | for (extdyn = dynbuf, extdynend = dynbuf + s->size; |
1733 | (size_t) (extdynend - extdyn) >= extdynsize; | |
1734 | extdyn += extdynsize) | |
252b5132 RH |
1735 | { |
1736 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1737 | const char *name = ""; |
252b5132 | 1738 | char ab[20]; |
0a1b45a2 | 1739 | bool stringp; |
ad9563d6 | 1740 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1741 | |
217aa764 | 1742 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1743 | |
1744 | if (dyn.d_tag == DT_NULL) | |
1745 | break; | |
1746 | ||
0a1b45a2 | 1747 | stringp = false; |
252b5132 RH |
1748 | switch (dyn.d_tag) |
1749 | { | |
1750 | default: | |
ad9563d6 CM |
1751 | if (bed->elf_backend_get_target_dtag) |
1752 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1753 | ||
1754 | if (!strcmp (name, "")) | |
1755 | { | |
b8281767 | 1756 | sprintf (ab, "%#" PRIx64, (uint64_t) dyn.d_tag); |
ad9563d6 CM |
1757 | name = ab; |
1758 | } | |
252b5132 RH |
1759 | break; |
1760 | ||
0a1b45a2 | 1761 | case DT_NEEDED: name = "NEEDED"; stringp = true; break; |
252b5132 RH |
1762 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1763 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1764 | case DT_HASH: name = "HASH"; break; | |
1765 | case DT_STRTAB: name = "STRTAB"; break; | |
1766 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1767 | case DT_RELA: name = "RELA"; break; | |
1768 | case DT_RELASZ: name = "RELASZ"; break; | |
1769 | case DT_RELAENT: name = "RELAENT"; break; | |
1770 | case DT_STRSZ: name = "STRSZ"; break; | |
1771 | case DT_SYMENT: name = "SYMENT"; break; | |
1772 | case DT_INIT: name = "INIT"; break; | |
1773 | case DT_FINI: name = "FINI"; break; | |
0a1b45a2 AM |
1774 | case DT_SONAME: name = "SONAME"; stringp = true; break; |
1775 | case DT_RPATH: name = "RPATH"; stringp = true; break; | |
252b5132 RH |
1776 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1777 | case DT_REL: name = "REL"; break; | |
1778 | case DT_RELSZ: name = "RELSZ"; break; | |
1779 | case DT_RELENT: name = "RELENT"; break; | |
dd207c13 FS |
1780 | case DT_RELR: name = "RELR"; break; |
1781 | case DT_RELRSZ: name = "RELRSZ"; break; | |
1782 | case DT_RELRENT: name = "RELRENT"; break; | |
252b5132 RH |
1783 | case DT_PLTREL: name = "PLTREL"; break; |
1784 | case DT_DEBUG: name = "DEBUG"; break; | |
1785 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1786 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1787 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1788 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1789 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1790 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1791 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
0a1b45a2 | 1792 | case DT_RUNPATH: name = "RUNPATH"; stringp = true; break; |
94558834 L |
1793 | case DT_FLAGS: name = "FLAGS"; break; |
1794 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1795 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1796 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1797 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1798 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1799 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1800 | case DT_FEATURE: name = "FEATURE"; break; | |
1801 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1802 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1803 | case DT_SYMINENT: name = "SYMINENT"; break; | |
0a1b45a2 AM |
1804 | case DT_CONFIG: name = "CONFIG"; stringp = true; break; |
1805 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = true; break; | |
1806 | case DT_AUDIT: name = "AUDIT"; stringp = true; break; | |
94558834 L |
1807 | case DT_PLTPAD: name = "PLTPAD"; break; |
1808 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1809 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1810 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1811 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1812 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1813 | case DT_VERSYM: name = "VERSYM"; break; |
1814 | case DT_VERDEF: name = "VERDEF"; break; | |
1815 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1816 | case DT_VERNEED: name = "VERNEED"; break; | |
1817 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
0a1b45a2 | 1818 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = true; break; |
94558834 | 1819 | case DT_USED: name = "USED"; break; |
0a1b45a2 | 1820 | case DT_FILTER: name = "FILTER"; stringp = true; break; |
fdc90cb4 | 1821 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1822 | } |
1823 | ||
ad9563d6 | 1824 | fprintf (f, " %-20s ", name); |
252b5132 | 1825 | if (! stringp) |
a1f3c56e AN |
1826 | { |
1827 | fprintf (f, "0x"); | |
1828 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1829 | } | |
252b5132 RH |
1830 | else |
1831 | { | |
1832 | const char *string; | |
dc810e39 | 1833 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1834 | |
dc810e39 | 1835 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1836 | if (string == NULL) |
1837 | goto error_return; | |
1838 | fprintf (f, "%s", string); | |
1839 | } | |
1840 | fprintf (f, "\n"); | |
1841 | } | |
1842 | ||
1843 | free (dynbuf); | |
1844 | dynbuf = NULL; | |
1845 | } | |
1846 | ||
1847 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1848 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1849 | { | |
0a1b45a2 AM |
1850 | if (! _bfd_elf_slurp_version_tables (abfd, false)) |
1851 | return false; | |
252b5132 RH |
1852 | } |
1853 | ||
1854 | if (elf_dynverdef (abfd) != 0) | |
1855 | { | |
1856 | Elf_Internal_Verdef *t; | |
1857 | ||
1858 | fprintf (f, _("\nVersion definitions:\n")); | |
1859 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1860 | { | |
1861 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1862 | t->vd_flags, t->vd_hash, |
1863 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1864 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1865 | { |
1866 | Elf_Internal_Verdaux *a; | |
1867 | ||
1868 | fprintf (f, "\t"); | |
1869 | for (a = t->vd_auxptr->vda_nextptr; | |
1870 | a != NULL; | |
1871 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1872 | fprintf (f, "%s ", |
1873 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1874 | fprintf (f, "\n"); |
1875 | } | |
1876 | } | |
1877 | } | |
1878 | ||
1879 | if (elf_dynverref (abfd) != 0) | |
1880 | { | |
1881 | Elf_Internal_Verneed *t; | |
1882 | ||
1883 | fprintf (f, _("\nVersion References:\n")); | |
1884 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1885 | { | |
1886 | Elf_Internal_Vernaux *a; | |
1887 | ||
d0fb9a8d JJ |
1888 | fprintf (f, _(" required from %s:\n"), |
1889 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1890 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1891 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1892 | a->vna_flags, a->vna_other, |
1893 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1894 | } |
1895 | } | |
1896 | ||
0a1b45a2 | 1897 | return true; |
252b5132 RH |
1898 | |
1899 | error_return: | |
c9594989 | 1900 | free (dynbuf); |
0a1b45a2 | 1901 | return false; |
252b5132 RH |
1902 | } |
1903 | ||
7e6e972f L |
1904 | /* Get version name. If BASE_P is TRUE, return "Base" for VER_FLG_BASE |
1905 | and return symbol version for symbol version itself. */ | |
bb4d2ac2 L |
1906 | |
1907 | const char * | |
1081065c | 1908 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
0a1b45a2 AM |
1909 | bool base_p, |
1910 | bool *hidden) | |
bb4d2ac2 L |
1911 | { |
1912 | const char *version_string = NULL; | |
1913 | if (elf_dynversym (abfd) != 0 | |
1914 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1915 | { | |
1916 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1917 | ||
1918 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1919 | vernum &= VERSYM_VERSION; | |
1920 | ||
1921 | if (vernum == 0) | |
1922 | version_string = ""; | |
1f6f5dba L |
1923 | else if (vernum == 1 |
1924 | && (vernum > elf_tdata (abfd)->cverdefs | |
1925 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1926 | == VER_FLG_BASE))) | |
7e6e972f | 1927 | version_string = base_p ? "Base" : ""; |
bb4d2ac2 | 1928 | else if (vernum <= elf_tdata (abfd)->cverdefs) |
7e6e972f L |
1929 | { |
1930 | const char *nodename | |
1931 | = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
8d55d10a AM |
1932 | version_string = ""; |
1933 | if (base_p | |
1934 | || nodename == NULL | |
1935 | || symbol->name == NULL | |
1936 | || strcmp (symbol->name, nodename) != 0) | |
1937 | version_string = nodename; | |
7e6e972f | 1938 | } |
bb4d2ac2 L |
1939 | else |
1940 | { | |
1941 | Elf_Internal_Verneed *t; | |
1942 | ||
7a815dd5 | 1943 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1944 | for (t = elf_tdata (abfd)->verref; |
1945 | t != NULL; | |
1946 | t = t->vn_nextref) | |
1947 | { | |
1948 | Elf_Internal_Vernaux *a; | |
1949 | ||
1950 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1951 | { | |
1952 | if (a->vna_other == vernum) | |
1953 | { | |
f897689c | 1954 | *hidden = true; |
bb4d2ac2 L |
1955 | version_string = a->vna_nodename; |
1956 | break; | |
1957 | } | |
1958 | } | |
1959 | } | |
1960 | } | |
1961 | } | |
1962 | return version_string; | |
1963 | } | |
1964 | ||
252b5132 RH |
1965 | /* Display ELF-specific fields of a symbol. */ |
1966 | ||
1967 | void | |
217aa764 AM |
1968 | bfd_elf_print_symbol (bfd *abfd, |
1969 | void *filep, | |
1970 | asymbol *symbol, | |
1971 | bfd_print_symbol_type how) | |
252b5132 | 1972 | { |
a50b1753 | 1973 | FILE *file = (FILE *) filep; |
252b5132 RH |
1974 | switch (how) |
1975 | { | |
1976 | case bfd_print_symbol_name: | |
1977 | fprintf (file, "%s", symbol->name); | |
1978 | break; | |
1979 | case bfd_print_symbol_more: | |
1980 | fprintf (file, "elf "); | |
60b89a18 | 1981 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1982 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1983 | break; |
1984 | case bfd_print_symbol_all: | |
1985 | { | |
4e8a9624 AM |
1986 | const char *section_name; |
1987 | const char *name = NULL; | |
9c5bfbb7 | 1988 | const struct elf_backend_data *bed; |
7a13edea | 1989 | unsigned char st_other; |
dbb410c3 | 1990 | bfd_vma val; |
bb4d2ac2 | 1991 | const char *version_string; |
0a1b45a2 | 1992 | bool hidden; |
c044fabd | 1993 | |
252b5132 | 1994 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1995 | |
1996 | bed = get_elf_backend_data (abfd); | |
1997 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1998 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1999 | |
2000 | if (name == NULL) | |
2001 | { | |
7ee38065 | 2002 | name = symbol->name; |
217aa764 | 2003 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
2004 | } |
2005 | ||
252b5132 RH |
2006 | fprintf (file, " %s\t", section_name); |
2007 | /* Print the "other" value for a symbol. For common symbols, | |
2008 | we've already printed the size; now print the alignment. | |
2009 | For other symbols, we have no specified alignment, and | |
2010 | we've printed the address; now print the size. */ | |
dcf6c779 | 2011 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2012 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2013 | else | |
2014 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2015 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2016 | |
2017 | /* If we have version information, print it. */ | |
60bb06bc L |
2018 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2019 | symbol, | |
0a1b45a2 | 2020 | true, |
60bb06bc | 2021 | &hidden); |
bb4d2ac2 | 2022 | if (version_string) |
252b5132 | 2023 | { |
bb4d2ac2 | 2024 | if (!hidden) |
252b5132 RH |
2025 | fprintf (file, " %-11s", version_string); |
2026 | else | |
2027 | { | |
2028 | int i; | |
2029 | ||
2030 | fprintf (file, " (%s)", version_string); | |
2031 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2032 | putc (' ', file); | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2037 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2038 | |
7a13edea NC |
2039 | switch (st_other) |
2040 | { | |
2041 | case 0: break; | |
2042 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2043 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2044 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2045 | default: | |
2046 | /* Some other non-defined flags are also present, so print | |
2047 | everything hex. */ | |
2048 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2049 | } | |
252b5132 | 2050 | |
587ff49e | 2051 | fprintf (file, " %s", name); |
252b5132 RH |
2052 | } |
2053 | break; | |
2054 | } | |
2055 | } | |
252b5132 RH |
2056 | \f |
2057 | /* ELF .o/exec file reading */ | |
2058 | ||
c044fabd | 2059 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2060 | |
0a1b45a2 | 2061 | bool |
217aa764 | 2062 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2063 | { |
4fbb74a6 AM |
2064 | Elf_Internal_Shdr *hdr; |
2065 | Elf_Internal_Ehdr *ehdr; | |
2066 | const struct elf_backend_data *bed; | |
90937f86 | 2067 | const char *name; |
0a1b45a2 | 2068 | bool ret = true; |
252b5132 | 2069 | |
4fbb74a6 | 2070 | if (shindex >= elf_numsections (abfd)) |
0a1b45a2 | 2071 | return false; |
4fbb74a6 | 2072 | |
a86c6c19 AM |
2073 | /* PR17512: A corrupt ELF binary might contain a loop of sections via |
2074 | sh_link or sh_info. Detect this here, by refusing to load a | |
2075 | section that we are already in the process of loading. */ | |
2076 | if (elf_tdata (abfd)->being_created[shindex]) | |
bf67003b | 2077 | { |
a86c6c19 AM |
2078 | _bfd_error_handler |
2079 | (_("%pB: warning: loop in section dependencies detected"), abfd); | |
0a1b45a2 | 2080 | return false; |
bf67003b | 2081 | } |
0a1b45a2 | 2082 | elf_tdata (abfd)->being_created[shindex] = true; |
bf67003b | 2083 | |
4fbb74a6 AM |
2084 | hdr = elf_elfsections (abfd)[shindex]; |
2085 | ehdr = elf_elfheader (abfd); | |
2086 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2087 | hdr->sh_name); |
933d961a | 2088 | if (name == NULL) |
bf67003b | 2089 | goto fail; |
252b5132 | 2090 | |
4fbb74a6 | 2091 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2092 | switch (hdr->sh_type) |
2093 | { | |
2094 | case SHT_NULL: | |
2095 | /* Inactive section. Throw it away. */ | |
bf67003b | 2096 | goto success; |
252b5132 | 2097 | |
bf67003b NC |
2098 | case SHT_PROGBITS: /* Normal section with contents. */ |
2099 | case SHT_NOBITS: /* .bss section. */ | |
2100 | case SHT_HASH: /* .hash section. */ | |
2101 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2102 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2103 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2104 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2105 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2106 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2107 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2108 | goto success; | |
252b5132 | 2109 | |
797fc050 | 2110 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2111 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2112 | goto fail; |
2113 | ||
cfcac11d NC |
2114 | if (hdr->sh_link > elf_numsections (abfd)) |
2115 | { | |
11c6a7c6 AM |
2116 | /* PR 10478: Accept Solaris binaries with a sh_link field |
2117 | set to SHN_BEFORE (LORESERVE) or SHN_AFTER (LORESERVE+1). */ | |
cfcac11d NC |
2118 | switch (bfd_get_arch (abfd)) |
2119 | { | |
caa83f8b | 2120 | case bfd_arch_i386: |
cfcac11d | 2121 | case bfd_arch_sparc: |
11c6a7c6 AM |
2122 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) |
2123 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff)) | |
cfcac11d NC |
2124 | break; |
2125 | /* Otherwise fall through. */ | |
2126 | default: | |
bf67003b | 2127 | goto fail; |
cfcac11d NC |
2128 | } |
2129 | } | |
2130 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2131 | goto fail; |
cfcac11d | 2132 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2133 | { |
2134 | Elf_Internal_Shdr *dynsymhdr; | |
2135 | ||
2136 | /* The shared libraries distributed with hpux11 have a bogus | |
2137 | sh_link field for the ".dynamic" section. Find the | |
2138 | string table for the ".dynsym" section instead. */ | |
2139 | if (elf_dynsymtab (abfd) != 0) | |
2140 | { | |
2141 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2142 | hdr->sh_link = dynsymhdr->sh_link; | |
2143 | } | |
2144 | else | |
2145 | { | |
2146 | unsigned int i, num_sec; | |
2147 | ||
2148 | num_sec = elf_numsections (abfd); | |
2149 | for (i = 1; i < num_sec; i++) | |
2150 | { | |
2151 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2152 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2153 | { | |
2154 | hdr->sh_link = dynsymhdr->sh_link; | |
2155 | break; | |
2156 | } | |
2157 | } | |
2158 | } | |
2159 | } | |
bf67003b | 2160 | goto success; |
797fc050 | 2161 | |
bf67003b | 2162 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2163 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2164 | goto success; |
252b5132 | 2165 | |
a50b2160 | 2166 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2167 | goto fail; |
2168 | ||
3337c1e5 | 2169 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2170 | { |
2171 | if (hdr->sh_size != 0) | |
bf67003b | 2172 | goto fail; |
eee3b786 AM |
2173 | /* Some assemblers erroneously set sh_info to one with a |
2174 | zero sh_size. ld sees this as a global symbol count | |
2175 | of (unsigned) -1. Fix it here. */ | |
2176 | hdr->sh_info = 0; | |
bf67003b | 2177 | goto success; |
eee3b786 | 2178 | } |
bf67003b | 2179 | |
16ad13ec NC |
2180 | /* PR 18854: A binary might contain more than one symbol table. |
2181 | Unusual, but possible. Warn, but continue. */ | |
2182 | if (elf_onesymtab (abfd) != 0) | |
2183 | { | |
4eca0228 | 2184 | _bfd_error_handler |
695344c0 | 2185 | /* xgettext:c-format */ |
871b3ab2 | 2186 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2187 | " - ignoring the table in section %u"), |
16ad13ec NC |
2188 | abfd, shindex); |
2189 | goto success; | |
2190 | } | |
252b5132 | 2191 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2192 | elf_symtab_hdr (abfd) = *hdr; |
2193 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2194 | abfd->flags |= HAS_SYMS; |
2195 | ||
2196 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2197 | SHF_ALLOC is set, and this is a shared object, then we also |
2198 | treat this section as a BFD section. We can not base the | |
2199 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2200 | set in a relocatable object file, which would confuse the | |
2201 | linker. */ | |
252b5132 RH |
2202 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2203 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2204 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2205 | shindex)) | |
bf67003b | 2206 | goto fail; |
252b5132 | 2207 | |
1b3a8575 AM |
2208 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2209 | can't read symbols without that section loaded as well. It | |
2210 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2211 | { |
2212 | elf_section_list * entry; | |
2213 | unsigned int i, num_sec; | |
1b3a8575 | 2214 | |
11c6a7c6 | 2215 | for (entry = elf_symtab_shndx_list (abfd); entry; entry = entry->next) |
6a40cf0c NC |
2216 | if (entry->hdr.sh_link == shindex) |
2217 | goto success; | |
2218 | ||
2219 | num_sec = elf_numsections (abfd); | |
2220 | for (i = shindex + 1; i < num_sec; i++) | |
2221 | { | |
2222 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2223 | ||
2224 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2225 | && hdr2->sh_link == shindex) | |
2226 | break; | |
2227 | } | |
2228 | ||
2229 | if (i == num_sec) | |
2230 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2231 | { |
2232 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2233 | |
1b3a8575 AM |
2234 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2235 | && hdr2->sh_link == shindex) | |
2236 | break; | |
2237 | } | |
6a40cf0c NC |
2238 | |
2239 | if (i != shindex) | |
2240 | ret = bfd_section_from_shdr (abfd, i); | |
11c6a7c6 AM |
2241 | /* else FIXME: we have failed to find the symbol table. |
2242 | Should we issue an error? */ | |
6a40cf0c NC |
2243 | goto success; |
2244 | } | |
252b5132 | 2245 | |
bf67003b | 2246 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2247 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2248 | goto success; |
252b5132 | 2249 | |
a50b2160 | 2250 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2251 | goto fail; |
2252 | ||
eee3b786 AM |
2253 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2254 | { | |
2255 | if (hdr->sh_size != 0) | |
bf67003b NC |
2256 | goto fail; |
2257 | ||
eee3b786 AM |
2258 | /* Some linkers erroneously set sh_info to one with a |
2259 | zero sh_size. ld sees this as a global symbol count | |
2260 | of (unsigned) -1. Fix it here. */ | |
2261 | hdr->sh_info = 0; | |
bf67003b | 2262 | goto success; |
eee3b786 | 2263 | } |
bf67003b | 2264 | |
16ad13ec NC |
2265 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2266 | Unusual, but possible. Warn, but continue. */ | |
2267 | if (elf_dynsymtab (abfd) != 0) | |
2268 | { | |
4eca0228 | 2269 | _bfd_error_handler |
695344c0 | 2270 | /* xgettext:c-format */ |
871b3ab2 | 2271 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2272 | " - ignoring the table in section %u"), |
16ad13ec NC |
2273 | abfd, shindex); |
2274 | goto success; | |
2275 | } | |
252b5132 RH |
2276 | elf_dynsymtab (abfd) = shindex; |
2277 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2278 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2279 | abfd->flags |= HAS_SYMS; | |
2280 | ||
2281 | /* Besides being a symbol table, we also treat this as a regular | |
2282 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2283 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2284 | goto success; | |
252b5132 | 2285 | |
11c6a7c6 | 2286 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2287 | { |
2288 | elf_section_list * entry; | |
9ad5cbcf | 2289 | |
11c6a7c6 | 2290 | for (entry = elf_symtab_shndx_list (abfd); entry; entry = entry->next) |
6a40cf0c NC |
2291 | if (entry->ndx == shindex) |
2292 | goto success; | |
07d6d2b8 | 2293 | |
7a6e0d89 | 2294 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2295 | if (entry == NULL) |
2296 | goto fail; | |
2297 | entry->ndx = shindex; | |
2298 | entry->hdr = * hdr; | |
2299 | entry->next = elf_symtab_shndx_list (abfd); | |
2300 | elf_symtab_shndx_list (abfd) = entry; | |
2301 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2302 | goto success; | |
2303 | } | |
9ad5cbcf | 2304 | |
bf67003b | 2305 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2306 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2307 | goto success; |
2308 | ||
252b5132 RH |
2309 | if (ehdr->e_shstrndx == shindex) |
2310 | { | |
2311 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2312 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2313 | goto success; |
252b5132 | 2314 | } |
bf67003b | 2315 | |
1b3a8575 AM |
2316 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2317 | { | |
2318 | symtab_strtab: | |
2319 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2320 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2321 | goto success; |
1b3a8575 | 2322 | } |
bf67003b | 2323 | |
1b3a8575 AM |
2324 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2325 | { | |
2326 | dynsymtab_strtab: | |
2327 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2328 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2329 | elf_elfsections (abfd)[shindex] = hdr; | |
2330 | /* We also treat this as a regular section, so that objcopy | |
2331 | can handle it. */ | |
bf67003b NC |
2332 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2333 | shindex); | |
2334 | goto success; | |
1b3a8575 | 2335 | } |
252b5132 | 2336 | |
1b3a8575 AM |
2337 | /* If the string table isn't one of the above, then treat it as a |
2338 | regular section. We need to scan all the headers to be sure, | |
2339 | just in case this strtab section appeared before the above. */ | |
2340 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2341 | { | |
2342 | unsigned int i, num_sec; | |
252b5132 | 2343 | |
1b3a8575 AM |
2344 | num_sec = elf_numsections (abfd); |
2345 | for (i = 1; i < num_sec; i++) | |
2346 | { | |
2347 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2348 | if (hdr2->sh_link == shindex) | |
2349 | { | |
933d961a JJ |
2350 | /* Prevent endless recursion on broken objects. */ |
2351 | if (i == shindex) | |
bf67003b | 2352 | goto fail; |
1b3a8575 | 2353 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2354 | goto fail; |
1b3a8575 AM |
2355 | if (elf_onesymtab (abfd) == i) |
2356 | goto symtab_strtab; | |
2357 | if (elf_dynsymtab (abfd) == i) | |
2358 | goto dynsymtab_strtab; | |
2359 | } | |
2360 | } | |
2361 | } | |
bf67003b NC |
2362 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2363 | goto success; | |
252b5132 RH |
2364 | |
2365 | case SHT_REL: | |
2366 | case SHT_RELA: | |
a619b587 | 2367 | case SHT_RELR: |
252b5132 RH |
2368 | /* *These* do a lot of work -- but build no sections! */ |
2369 | { | |
2370 | asection *target_sect; | |
d4730f92 | 2371 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2372 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2373 | struct bfd_elf_section_data *esdt; |
a619b587 | 2374 | bfd_size_type size; |
252b5132 | 2375 | |
a619b587 FS |
2376 | if (hdr->sh_type == SHT_REL) |
2377 | size = bed->s->sizeof_rel; | |
2378 | else if (hdr->sh_type == SHT_RELA) | |
2379 | size = bed->s->sizeof_rela; | |
2380 | else | |
2381 | size = bed->s->arch_size / 8; | |
2382 | if (hdr->sh_entsize != size) | |
bf67003b | 2383 | goto fail; |
a50b2160 | 2384 | |
03ae5f59 | 2385 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2386 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2387 | { |
4eca0228 | 2388 | _bfd_error_handler |
695344c0 | 2389 | /* xgettext:c-format */ |
871b3ab2 | 2390 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2391 | abfd, hdr->sh_link, name, shindex); |
11c6a7c6 | 2392 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
bf67003b | 2393 | goto success; |
03ae5f59 ILT |
2394 | } |
2395 | ||
252b5132 | 2396 | /* Get the symbol table. */ |
1b3a8575 AM |
2397 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2398 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2399 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2400 | goto fail; |
252b5132 | 2401 | |
a4bcd733 AM |
2402 | /* If this is an alloc section in an executable or shared |
2403 | library, or the reloc section does not use the main symbol | |
2404 | table we don't treat it as a reloc section. BFD can't | |
2405 | adequately represent such a section, so at least for now, | |
2406 | we don't try. We just present it as a normal section. We | |
2407 | also can't use it as a reloc section if it points to the | |
2408 | null section, an invalid section, another reloc section, or | |
2409 | its sh_link points to the null section. */ | |
2410 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2411 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
37c49d0d | 2412 | || hdr->sh_type == SHT_RELR |
83b89087 | 2413 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2414 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2415 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2416 | || hdr->sh_info >= num_sec |
2417 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2418 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b | 2419 | { |
11c6a7c6 | 2420 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
bf67003b NC |
2421 | goto success; |
2422 | } | |
252b5132 RH |
2423 | |
2424 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2425 | goto fail; |
2426 | ||
252b5132 RH |
2427 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2428 | if (target_sect == NULL) | |
bf67003b | 2429 | goto fail; |
252b5132 | 2430 | |
d4730f92 BS |
2431 | esdt = elf_section_data (target_sect); |
2432 | if (hdr->sh_type == SHT_RELA) | |
2433 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2434 | else |
d4730f92 BS |
2435 | p_hdr = &esdt->rel.hdr; |
2436 | ||
a7ba3896 NC |
2437 | /* PR 17512: file: 0b4f81b7. |
2438 | Also see PR 24456, for a file which deliberately has two reloc | |
2439 | sections. */ | |
06614111 | 2440 | if (*p_hdr != NULL) |
a7ba3896 | 2441 | { |
a859124d | 2442 | if (!bed->init_secondary_reloc_section (abfd, hdr, name, shindex)) |
a8e14f4c NC |
2443 | { |
2444 | _bfd_error_handler | |
2445 | /* xgettext:c-format */ | |
a859124d AM |
2446 | (_("%pB: warning: secondary relocation section '%s' " |
2447 | "for section %pA found - ignoring"), | |
a8e14f4c NC |
2448 | abfd, name, target_sect); |
2449 | } | |
956ea65c MM |
2450 | else |
2451 | esdt->has_secondary_relocs = true; | |
a7ba3896 NC |
2452 | goto success; |
2453 | } | |
a8e14f4c | 2454 | |
ef53be89 | 2455 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2456 | if (hdr2 == NULL) |
bf67003b | 2457 | goto fail; |
252b5132 | 2458 | *hdr2 = *hdr; |
d4730f92 | 2459 | *p_hdr = hdr2; |
252b5132 | 2460 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2461 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2462 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2463 | target_sect->flags |= SEC_RELOC; |
2464 | target_sect->relocation = NULL; | |
2465 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2466 | /* In the section to which the relocations apply, mark whether |
2467 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2468 | if (hdr->sh_size != 0) |
d4730f92 BS |
2469 | { |
2470 | if (hdr->sh_type == SHT_RELA) | |
2471 | target_sect->use_rela_p = 1; | |
2472 | } | |
252b5132 | 2473 | abfd->flags |= HAS_RELOC; |
bf67003b | 2474 | goto success; |
252b5132 | 2475 | } |
252b5132 RH |
2476 | |
2477 | case SHT_GNU_verdef: | |
2478 | elf_dynverdef (abfd) = shindex; | |
2479 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2480 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2481 | goto success; | |
252b5132 RH |
2482 | |
2483 | case SHT_GNU_versym: | |
a50b2160 | 2484 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2485 | goto fail; |
2486 | ||
252b5132 RH |
2487 | elf_dynversym (abfd) = shindex; |
2488 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2489 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2490 | goto success; | |
252b5132 RH |
2491 | |
2492 | case SHT_GNU_verneed: | |
2493 | elf_dynverref (abfd) = shindex; | |
2494 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2495 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2496 | goto success; | |
252b5132 RH |
2497 | |
2498 | case SHT_SHLIB: | |
bf67003b | 2499 | goto success; |
252b5132 | 2500 | |
dbb410c3 | 2501 | case SHT_GROUP: |
44534af3 | 2502 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2503 | goto fail; |
2504 | ||
6dc132d9 | 2505 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2506 | goto fail; |
2507 | ||
bf67003b | 2508 | goto success; |
dbb410c3 | 2509 | |
252b5132 | 2510 | default: |
104d59d1 JM |
2511 | /* Possibly an attributes section. */ |
2512 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2513 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2514 | { | |
2515 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2516 | goto fail; |
104d59d1 | 2517 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2518 | goto success; |
104d59d1 JM |
2519 | } |
2520 | ||
252b5132 | 2521 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2522 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2523 | goto success; |
3eb70a79 L |
2524 | |
2525 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2526 | { | |
2527 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2528 | /* FIXME: How to properly handle allocated section reserved | |
2529 | for applications? */ | |
4eca0228 | 2530 | _bfd_error_handler |
695344c0 | 2531 | /* xgettext:c-format */ |
871b3ab2 | 2532 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2533 | abfd, hdr->sh_type, name); |
3eb70a79 | 2534 | else |
bf67003b NC |
2535 | { |
2536 | /* Allow sections reserved for applications. */ | |
11c6a7c6 | 2537 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
bf67003b NC |
2538 | goto success; |
2539 | } | |
3eb70a79 L |
2540 | } |
2541 | else if (hdr->sh_type >= SHT_LOPROC | |
2542 | && hdr->sh_type <= SHT_HIPROC) | |
2543 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2544 | _bfd_error_handler |
695344c0 | 2545 | /* xgettext:c-format */ |
871b3ab2 | 2546 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2547 | abfd, hdr->sh_type, name); |
3eb70a79 | 2548 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2549 | { |
2550 | /* Unrecognised OS-specific sections. */ | |
2551 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2552 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2553 | required to correctly process the section and the file should |
ff15b240 | 2554 | be rejected with an error message. */ |
4eca0228 | 2555 | _bfd_error_handler |
695344c0 | 2556 | /* xgettext:c-format */ |
871b3ab2 | 2557 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2558 | abfd, hdr->sh_type, name); |
ff15b240 | 2559 | else |
bf67003b NC |
2560 | { |
2561 | /* Otherwise it should be processed. */ | |
2562 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2563 | goto success; | |
2564 | } | |
ff15b240 | 2565 | } |
3eb70a79 L |
2566 | else |
2567 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2568 | _bfd_error_handler |
695344c0 | 2569 | /* xgettext:c-format */ |
871b3ab2 | 2570 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2571 | abfd, hdr->sh_type, name); |
3eb70a79 | 2572 | |
bf67003b | 2573 | goto fail; |
252b5132 RH |
2574 | } |
2575 | ||
bf67003b | 2576 | fail: |
0a1b45a2 | 2577 | ret = false; |
bf67003b | 2578 | success: |
0a1b45a2 | 2579 | elf_tdata (abfd)->being_created[shindex] = false; |
bf67003b | 2580 | return ret; |
252b5132 RH |
2581 | } |
2582 | ||
87d72d41 | 2583 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2584 | |
87d72d41 AM |
2585 | Elf_Internal_Sym * |
2586 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2587 | bfd *abfd, | |
2588 | unsigned long r_symndx) | |
ec338859 | 2589 | { |
ec338859 AM |
2590 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2591 | ||
a5d1b3b5 AM |
2592 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2593 | { | |
2594 | Elf_Internal_Shdr *symtab_hdr; | |
2595 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2596 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2597 | |
a5d1b3b5 AM |
2598 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2599 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2600 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2601 | return NULL; |
9ad5cbcf | 2602 | |
a5d1b3b5 AM |
2603 | if (cache->abfd != abfd) |
2604 | { | |
2605 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2606 | cache->abfd = abfd; | |
2607 | } | |
2608 | cache->indx[ent] = r_symndx; | |
ec338859 | 2609 | } |
a5d1b3b5 | 2610 | |
87d72d41 | 2611 | return &cache->sym[ent]; |
ec338859 AM |
2612 | } |
2613 | ||
252b5132 RH |
2614 | /* Given an ELF section number, retrieve the corresponding BFD |
2615 | section. */ | |
2616 | ||
2617 | asection * | |
91d6fa6a | 2618 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2619 | { |
91d6fa6a | 2620 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2621 | return NULL; |
91d6fa6a | 2622 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2623 | } |
2624 | ||
b35d266b | 2625 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2626 | { |
0112cd26 | 2627 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2628 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2629 | }; |
2630 | ||
b35d266b | 2631 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2632 | { |
0112cd26 | 2633 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2634 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2635 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2636 | }; |
2637 | ||
b35d266b | 2638 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2639 | { |
07d6d2b8 AM |
2640 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2641 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2642 | /* There are more DWARF sections than these, but they needn't be added here |
2643 | unless you have to cope with broken compilers that don't emit section | |
2644 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2645 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2646 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2647 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2648 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2649 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2650 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2651 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2652 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2653 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2654 | }; |
2655 | ||
b35d266b | 2656 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2657 | { |
07d6d2b8 | 2658 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2659 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2660 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2661 | }; |
2662 | ||
b35d266b | 2663 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2664 | { |
0112cd26 | 2665 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 JL |
2666 | { STRING_COMMA_LEN (".gnu.linkonce.n"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2667 | { STRING_COMMA_LEN (".gnu.linkonce.p"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
07d6d2b8 AM |
2668 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2669 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2670 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2671 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2672 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2673 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2674 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2675 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2676 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2677 | }; |
2678 | ||
b35d266b | 2679 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2680 | { |
07d6d2b8 AM |
2681 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2682 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2683 | }; |
2684 | ||
b35d266b | 2685 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2686 | { |
07d6d2b8 | 2687 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2688 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2689 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2690 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2691 | }; |
2692 | ||
b35d266b | 2693 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2694 | { |
0112cd26 | 2695 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2696 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2697 | }; |
2698 | ||
b35d266b | 2699 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2700 | { |
2c6f3e56 | 2701 | { STRING_COMMA_LEN (".noinit"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
0112cd26 | 2702 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2703 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2704 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2705 | }; |
2706 | ||
b35d266b | 2707 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2708 | { |
f5e98b7d | 2709 | { STRING_COMMA_LEN (".persistent.bss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 | 2710 | { STRING_COMMA_LEN (".persistent"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
6f9dbcd4 | 2711 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2712 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2713 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2714 | }; |
2715 | ||
b35d266b | 2716 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2717 | { |
0112cd26 NC |
2718 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2719 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
fc07cf22 | 2720 | { STRING_COMMA_LEN (".relr.dyn"), 0, SHT_RELR, SHF_ALLOC }, |
07d6d2b8 AM |
2721 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2722 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2723 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2724 | }; |
2725 | ||
b35d266b | 2726 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2727 | { |
0112cd26 NC |
2728 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2729 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2730 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2731 | /* See struct bfd_elf_special_section declaration for the semantics of |
2732 | this special case where .prefix_length != strlen (.prefix). */ | |
2733 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2734 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2735 | }; |
2736 | ||
b35d266b | 2737 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2738 | { |
07d6d2b8 AM |
2739 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2740 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2741 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2742 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2743 | }; |
2744 | ||
1b315056 CS |
2745 | static const struct bfd_elf_special_section special_sections_z[] = |
2746 | { | |
07d6d2b8 AM |
2747 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2748 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2749 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2750 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2751 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2752 | }; |
2753 | ||
e4c93b56 | 2754 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2755 | { |
7f4d3958 | 2756 | special_sections_b, /* 'b' */ |
98ece1b3 | 2757 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2758 | special_sections_d, /* 'd' */ |
2759 | NULL, /* 'e' */ | |
2760 | special_sections_f, /* 'f' */ | |
2761 | special_sections_g, /* 'g' */ | |
2762 | special_sections_h, /* 'h' */ | |
2763 | special_sections_i, /* 'i' */ | |
2764 | NULL, /* 'j' */ | |
2765 | NULL, /* 'k' */ | |
2766 | special_sections_l, /* 'l' */ | |
2767 | NULL, /* 'm' */ | |
2768 | special_sections_n, /* 'n' */ | |
2769 | NULL, /* 'o' */ | |
2770 | special_sections_p, /* 'p' */ | |
2771 | NULL, /* 'q' */ | |
2772 | special_sections_r, /* 'r' */ | |
2773 | special_sections_s, /* 's' */ | |
2774 | special_sections_t, /* 't' */ | |
1b315056 CS |
2775 | NULL, /* 'u' */ |
2776 | NULL, /* 'v' */ | |
2777 | NULL, /* 'w' */ | |
2778 | NULL, /* 'x' */ | |
2779 | NULL, /* 'y' */ | |
2780 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2781 | }; |
2782 | ||
551b43fd AM |
2783 | const struct bfd_elf_special_section * |
2784 | _bfd_elf_get_special_section (const char *name, | |
2785 | const struct bfd_elf_special_section *spec, | |
2786 | unsigned int rela) | |
2f89ff8d L |
2787 | { |
2788 | int i; | |
7f4d3958 | 2789 | int len; |
7f4d3958 | 2790 | |
551b43fd | 2791 | len = strlen (name); |
7f4d3958 | 2792 | |
551b43fd | 2793 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2794 | { |
2795 | int suffix_len; | |
551b43fd | 2796 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2797 | |
2798 | if (len < prefix_len) | |
2799 | continue; | |
551b43fd | 2800 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2801 | continue; |
2802 | ||
551b43fd | 2803 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2804 | if (suffix_len <= 0) |
2805 | { | |
2806 | if (name[prefix_len] != 0) | |
2807 | { | |
2808 | if (suffix_len == 0) | |
2809 | continue; | |
2810 | if (name[prefix_len] != '.' | |
2811 | && (suffix_len == -2 | |
551b43fd | 2812 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2813 | continue; |
2814 | } | |
2815 | } | |
2816 | else | |
2817 | { | |
2818 | if (len < prefix_len + suffix_len) | |
2819 | continue; | |
2820 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2821 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2822 | suffix_len) != 0) |
2823 | continue; | |
2824 | } | |
551b43fd | 2825 | return &spec[i]; |
7dcb9820 | 2826 | } |
2f89ff8d L |
2827 | |
2828 | return NULL; | |
2829 | } | |
2830 | ||
7dcb9820 | 2831 | const struct bfd_elf_special_section * |
29ef7005 | 2832 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2833 | { |
551b43fd AM |
2834 | int i; |
2835 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2836 | const struct elf_backend_data *bed; |
2f89ff8d L |
2837 | |
2838 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2839 | if (sec->name == NULL) |
2840 | return NULL; | |
2f89ff8d | 2841 | |
29ef7005 L |
2842 | bed = get_elf_backend_data (abfd); |
2843 | spec = bed->special_sections; | |
2844 | if (spec) | |
2845 | { | |
2846 | spec = _bfd_elf_get_special_section (sec->name, | |
2847 | bed->special_sections, | |
2848 | sec->use_rela_p); | |
2849 | if (spec != NULL) | |
2850 | return spec; | |
2851 | } | |
2852 | ||
551b43fd AM |
2853 | if (sec->name[0] != '.') |
2854 | return NULL; | |
2f89ff8d | 2855 | |
551b43fd | 2856 | i = sec->name[1] - 'b'; |
1b315056 | 2857 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2858 | return NULL; |
2859 | ||
2860 | spec = special_sections[i]; | |
2f89ff8d | 2861 | |
551b43fd AM |
2862 | if (spec == NULL) |
2863 | return NULL; | |
2864 | ||
2865 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2866 | } |
2867 | ||
0a1b45a2 | 2868 | bool |
217aa764 | 2869 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2870 | { |
2871 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2872 | const struct elf_backend_data *bed; |
7dcb9820 | 2873 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2874 | |
f0abc2a1 AM |
2875 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2876 | if (sdata == NULL) | |
2877 | { | |
a50b1753 | 2878 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2879 | sizeof (*sdata)); |
f0abc2a1 | 2880 | if (sdata == NULL) |
0a1b45a2 | 2881 | return false; |
217aa764 | 2882 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2883 | } |
bf572ba0 | 2884 | |
551b43fd AM |
2885 | /* Indicate whether or not this section should use RELA relocations. */ |
2886 | bed = get_elf_backend_data (abfd); | |
2887 | sec->use_rela_p = bed->default_use_rela_p; | |
2888 | ||
8c803a2d AM |
2889 | /* Set up ELF section type and flags for newly created sections, if |
2890 | there is an ABI mandated section. */ | |
2891 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2892 | if (ssect != NULL) | |
2f89ff8d | 2893 | { |
8c803a2d AM |
2894 | elf_section_type (sec) = ssect->type; |
2895 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2896 | } |
2897 | ||
f592407e | 2898 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2899 | } |
2900 | ||
2901 | /* Create a new bfd section from an ELF program header. | |
2902 | ||
2903 | Since program segments have no names, we generate a synthetic name | |
2904 | of the form segment<NUM>, where NUM is generally the index in the | |
2905 | program header table. For segments that are split (see below) we | |
2906 | generate the names segment<NUM>a and segment<NUM>b. | |
2907 | ||
2908 | Note that some program segments may have a file size that is different than | |
2909 | (less than) the memory size. All this means is that at execution the | |
2910 | system must allocate the amount of memory specified by the memory size, | |
2911 | but only initialize it with the first "file size" bytes read from the | |
2912 | file. This would occur for example, with program segments consisting | |
2913 | of combined data+bss. | |
2914 | ||
2915 | To handle the above situation, this routine generates TWO bfd sections | |
2916 | for the single program segment. The first has the length specified by | |
2917 | the file size of the segment, and the second has the length specified | |
2918 | by the difference between the two sizes. In effect, the segment is split | |
11c6a7c6 | 2919 | into its initialized and uninitialized parts. */ |
252b5132 | 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 | 3597 | loc -= 4; |
6ecc36f7 AM |
3598 | if (loc == sec->contents) |
3599 | break; | |
db4677b8 AM |
3600 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); |
3601 | } | |
28e07a05 AM |
3602 | if (elf_sec->rela.hdr != NULL |
3603 | && (gas | |
3604 | || (input_elf_sec->rela.hdr != NULL | |
3605 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3606 | { |
28e07a05 | 3607 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 | 3608 | loc -= 4; |
6ecc36f7 AM |
3609 | if (loc == sec->contents) |
3610 | break; | |
db4677b8 AM |
3611 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); |
3612 | } | |
01e1a5bc | 3613 | loc -= 4; |
6ecc36f7 AM |
3614 | if (loc == sec->contents) |
3615 | break; | |
db4677b8 | 3616 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3617 | } |
945906ff | 3618 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3619 | if (elt == first) |
3620 | break; | |
dbb410c3 AM |
3621 | } |
3622 | ||
6ecc36f7 AM |
3623 | /* We should always get here with loc == sec->contents + 4, but it is |
3624 | possible to craft bogus SHT_GROUP sections that will cause segfaults | |
3625 | in objcopy without checking loc here and in the loop above. */ | |
3626 | if (loc == sec->contents) | |
3627 | BFD_ASSERT (0); | |
3628 | else | |
7744e327 | 3629 | { |
6ecc36f7 AM |
3630 | loc -= 4; |
3631 | if (loc != sec->contents) | |
3632 | { | |
3633 | BFD_ASSERT (0); | |
3634 | memset (sec->contents + 4, 0, loc - sec->contents); | |
3635 | loc = sec->contents; | |
3636 | } | |
7744e327 | 3637 | } |
dbb410c3 | 3638 | |
9dce4196 | 3639 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3640 | } |
3641 | ||
bce964aa AM |
3642 | /* Given NAME, the name of a relocation section stripped of its |
3643 | .rel/.rela prefix, return the section in ABFD to which the | |
3644 | relocations apply. */ | |
bd53a53a L |
3645 | |
3646 | asection * | |
bce964aa AM |
3647 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3648 | { | |
3649 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3650 | section likely apply to .got.plt or .got section. */ | |
3651 | if (get_elf_backend_data (abfd)->want_got_plt | |
3652 | && strcmp (name, ".plt") == 0) | |
3653 | { | |
3654 | asection *sec; | |
3655 | ||
3656 | name = ".got.plt"; | |
3657 | sec = bfd_get_section_by_name (abfd, name); | |
3658 | if (sec != NULL) | |
3659 | return sec; | |
3660 | name = ".got"; | |
3661 | } | |
3662 | ||
3663 | return bfd_get_section_by_name (abfd, name); | |
3664 | } | |
3665 | ||
3666 | /* Return the section to which RELOC_SEC applies. */ | |
3667 | ||
3668 | static asection * | |
3669 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3670 | { |
3671 | const char *name; | |
3672 | unsigned int type; | |
3673 | bfd *abfd; | |
bce964aa | 3674 | const struct elf_backend_data *bed; |
bd53a53a L |
3675 | |
3676 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3677 | if (type != SHT_REL && type != SHT_RELA) | |
3678 | return NULL; | |
3679 | ||
3680 | /* We look up the section the relocs apply to by name. */ | |
3681 | name = reloc_sec->name; | |
3f3328b8 | 3682 | if (!startswith (name, ".rel")) |
bce964aa AM |
3683 | return NULL; |
3684 | name += 4; | |
3685 | if (type == SHT_RELA && *name++ != 'a') | |
3686 | return NULL; | |
bd53a53a | 3687 | |
bd53a53a | 3688 | abfd = reloc_sec->owner; |
bce964aa AM |
3689 | bed = get_elf_backend_data (abfd); |
3690 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3691 | } |
3692 | ||
252b5132 RH |
3693 | /* Assign all ELF section numbers. The dummy first section is handled here |
3694 | too. The link/info pointers for the standard section types are filled | |
67411cbf | 3695 | in here too, while we're at it. LINK_INFO will be 0 when arriving |
2ba2f096 | 3696 | here for gas, objcopy, and when using the generic ELF linker. */ |
252b5132 | 3697 | |
0a1b45a2 | 3698 | static bool |
da9f89d4 | 3699 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3700 | { |
3701 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3702 | asection *sec; | |
3e19fb8f | 3703 | unsigned int section_number; |
252b5132 | 3704 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3705 | struct bfd_elf_section_data *d; |
0a1b45a2 | 3706 | bool need_symtab; |
446f7ed5 | 3707 | size_t amt; |
252b5132 RH |
3708 | |
3709 | section_number = 1; | |
3710 | ||
2b0f7ef9 JJ |
3711 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3712 | ||
da9f89d4 | 3713 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3714 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3715 | { |
ef53be89 | 3716 | size_t reloc_count = 0; |
14f2c699 | 3717 | |
da9f89d4 | 3718 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3719 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3720 | { |
5daa8fe7 | 3721 | d = elf_section_data (sec); |
da9f89d4 L |
3722 | |
3723 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3724 | { |
5daa8fe7 | 3725 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3726 | { |
3727 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3728 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3729 | abfd->section_count--; |
da9f89d4 | 3730 | } |
08a40648 | 3731 | else |
4fbb74a6 | 3732 | d->this_idx = section_number++; |
da9f89d4 | 3733 | } |
14f2c699 L |
3734 | |
3735 | /* Count relocations. */ | |
3736 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3737 | } |
14f2c699 | 3738 | |
2ba2f096 | 3739 | /* Set/clear HAS_RELOC depending on whether there are relocations. */ |
14f2c699 L |
3740 | if (reloc_count == 0) |
3741 | abfd->flags &= ~HAS_RELOC; | |
2ba2f096 JB |
3742 | else |
3743 | abfd->flags |= HAS_RELOC; | |
47cc2cf5 PB |
3744 | } |
3745 | ||
3746 | for (sec = abfd->sections; sec; sec = sec->next) | |
3747 | { | |
3748 | d = elf_section_data (sec); | |
3749 | ||
3750 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3751 | d->this_idx = section_number++; |
3e19fb8f L |
3752 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3753 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3754 | if (d->rel.hdr) |
2b0f7ef9 | 3755 | { |
d4730f92 | 3756 | d->rel.idx = section_number++; |
3e19fb8f L |
3757 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3758 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3759 | } |
d4730f92 BS |
3760 | else |
3761 | d->rel.idx = 0; | |
23bc299b | 3762 | |
d4730f92 | 3763 | if (d->rela.hdr) |
2b0f7ef9 | 3764 | { |
d4730f92 | 3765 | d->rela.idx = section_number++; |
3e19fb8f L |
3766 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3767 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3768 | } |
23bc299b | 3769 | else |
d4730f92 | 3770 | d->rela.idx = 0; |
252b5132 RH |
3771 | } |
3772 | ||
3516e984 | 3773 | need_symtab = (bfd_get_symcount (abfd) > 0 |
b6d1f70c AM |
3774 | || (link_info == NULL |
3775 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3776 | == HAS_RELOC))); | |
3516e984 | 3777 | if (need_symtab) |
252b5132 | 3778 | { |
12bd6957 | 3779 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3780 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3781 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3782 | { |
7a6e0d89 | 3783 | elf_section_list *entry; |
6a40cf0c NC |
3784 | |
3785 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3786 | ||
7a6e0d89 | 3787 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3788 | entry->ndx = section_number++; |
3789 | elf_symtab_shndx_list (abfd) = entry; | |
3790 | entry->hdr.sh_name | |
9ad5cbcf | 3791 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
0a1b45a2 | 3792 | ".symtab_shndx", false); |
6a40cf0c | 3793 | if (entry->hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 3794 | return false; |
9ad5cbcf | 3795 | } |
12bd6957 | 3796 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3797 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3798 | } |
3799 | ||
dd905818 NC |
3800 | elf_shstrtab_sec (abfd) = section_number++; |
3801 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3802 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3803 | ||
1c52a645 L |
3804 | if (section_number >= SHN_LORESERVE) |
3805 | { | |
695344c0 | 3806 | /* xgettext:c-format */ |
871b3ab2 | 3807 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 | 3808 | abfd, section_number); |
0a1b45a2 | 3809 | return false; |
1c52a645 L |
3810 | } |
3811 | ||
9ad5cbcf | 3812 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3813 | elf_elfheader (abfd)->e_shnum = section_number; |
3814 | ||
3815 | /* Set up the list of section header pointers, in agreement with the | |
3816 | indices. */ | |
446f7ed5 AM |
3817 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3818 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3819 | if (i_shdrp == NULL) |
0a1b45a2 | 3820 | return false; |
252b5132 | 3821 | |
a50b1753 | 3822 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3823 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3824 | if (i_shdrp[0] == NULL) |
3825 | { | |
3826 | bfd_release (abfd, i_shdrp); | |
0a1b45a2 | 3827 | return false; |
252b5132 | 3828 | } |
252b5132 RH |
3829 | |
3830 | elf_elfsections (abfd) = i_shdrp; | |
3831 | ||
12bd6957 | 3832 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3833 | if (need_symtab) |
252b5132 | 3834 | { |
12bd6957 | 3835 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3836 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3837 | { |
6a40cf0c NC |
3838 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3839 | BFD_ASSERT (entry != NULL); | |
3840 | i_shdrp[entry->ndx] = & entry->hdr; | |
3841 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3842 | } |
12bd6957 AM |
3843 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3844 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3845 | } |
38ce5b11 | 3846 | |
252b5132 RH |
3847 | for (sec = abfd->sections; sec; sec = sec->next) |
3848 | { | |
252b5132 | 3849 | asection *s; |
252b5132 | 3850 | |
91d6fa6a NC |
3851 | d = elf_section_data (sec); |
3852 | ||
252b5132 | 3853 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3854 | if (d->rel.idx != 0) |
3855 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3856 | if (d->rela.idx != 0) | |
3857 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3858 | |
3859 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3860 | ||
3861 | /* sh_link of a reloc section is the section index of the symbol | |
3862 | table. sh_info is the section index of the section to which | |
3863 | the relocation entries apply. */ | |
d4730f92 | 3864 | if (d->rel.idx != 0) |
252b5132 | 3865 | { |
12bd6957 | 3866 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3867 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3868 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3869 | } |
d4730f92 | 3870 | if (d->rela.idx != 0) |
23bc299b | 3871 | { |
12bd6957 | 3872 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3873 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3874 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3875 | } |
252b5132 | 3876 | |
38ce5b11 L |
3877 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3878 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3879 | { | |
3880 | s = elf_linked_to_section (sec); | |
b71702f1 NC |
3881 | /* We can now have a NULL linked section pointer. |
3882 | This happens when the sh_link field is 0, which is done | |
3883 | when a linked to section is discarded but the linking | |
3884 | section has been retained for some reason. */ | |
38ce5b11 | 3885 | if (s) |
38ce5b11 | 3886 | { |
67411cbf AM |
3887 | /* Check discarded linkonce section. */ |
3888 | if (discarded_section (s)) | |
38ce5b11 | 3889 | { |
67411cbf AM |
3890 | asection *kept; |
3891 | _bfd_error_handler | |
3892 | /* xgettext:c-format */ | |
3893 | (_("%pB: sh_link of section `%pA' points to" | |
3894 | " discarded section `%pA' of `%pB'"), | |
3895 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3896 | /* Point to the kept section if it has the same | |
3897 | size as the discarded one. */ | |
3898 | kept = _bfd_elf_check_kept_section (s, link_info); | |
3899 | if (kept == NULL) | |
f2876037 | 3900 | { |
f2876037 | 3901 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3902 | return false; |
f2876037 | 3903 | } |
67411cbf AM |
3904 | s = kept; |
3905 | } | |
3906 | /* Handle objcopy. */ | |
3907 | else if (s->output_section == NULL) | |
3908 | { | |
3909 | _bfd_error_handler | |
3910 | /* xgettext:c-format */ | |
3911 | (_("%pB: sh_link of section `%pA' points to" | |
3912 | " removed section `%pA' of `%pB'"), | |
3913 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3914 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3915 | return false; |
f2876037 | 3916 | } |
67411cbf | 3917 | s = s->output_section; |
ccd2ec6a L |
3918 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3919 | } | |
38ce5b11 L |
3920 | } |
3921 | ||
252b5132 RH |
3922 | switch (d->this_hdr.sh_type) |
3923 | { | |
3924 | case SHT_REL: | |
3925 | case SHT_RELA: | |
3926 | /* A reloc section which we are treating as a normal BFD | |
3927 | section. sh_link is the section index of the symbol | |
3928 | table. sh_info is the section index of the section to | |
3929 | which the relocation entries apply. We assume that an | |
b6d1f70c AM |
3930 | allocated reloc section uses the dynamic symbol table |
3931 | if there is one. Otherwise we guess the normal symbol | |
3932 | table. FIXME: How can we be sure? */ | |
3933 | if (d->this_hdr.sh_link == 0 && (sec->flags & SEC_ALLOC) != 0) | |
3934 | { | |
3935 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3936 | if (s != NULL) | |
3937 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3938 | } | |
3939 | if (d->this_hdr.sh_link == 0) | |
3940 | d->this_hdr.sh_link = elf_onesymtab (abfd); | |
252b5132 | 3941 | |
bce964aa | 3942 | s = elf_get_reloc_section (sec); |
252b5132 | 3943 | if (s != NULL) |
9ef5d938 L |
3944 | { |
3945 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3946 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3947 | } | |
252b5132 RH |
3948 | break; |
3949 | ||
3950 | case SHT_STRTAB: | |
3951 | /* We assume that a section named .stab*str is a stabs | |
3952 | string section. We look for a section with the same name | |
3953 | but without the trailing ``str'', and set its sh_link | |
3954 | field to point to this section. */ | |
08dedd66 | 3955 | if (startswith (sec->name, ".stab") |
252b5132 RH |
3956 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3957 | { | |
3958 | size_t len; | |
3959 | char *alc; | |
3960 | ||
3961 | len = strlen (sec->name); | |
a50b1753 | 3962 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3963 | if (alc == NULL) |
0a1b45a2 | 3964 | return false; |
d4c88bbb | 3965 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3966 | alc[len - 3] = '\0'; |
3967 | s = bfd_get_section_by_name (abfd, alc); | |
3968 | free (alc); | |
3969 | if (s != NULL) | |
3970 | { | |
3971 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3972 | ||
3973 | /* This is a .stab section. */ | |
34ca5531 | 3974 | elf_section_data (s)->this_hdr.sh_entsize = 12; |
252b5132 RH |
3975 | } |
3976 | } | |
3977 | break; | |
3978 | ||
3979 | case SHT_DYNAMIC: | |
3980 | case SHT_DYNSYM: | |
3981 | case SHT_GNU_verneed: | |
3982 | case SHT_GNU_verdef: | |
3983 | /* sh_link is the section header index of the string table | |
3984 | used for the dynamic entries, or the symbol table, or the | |
3985 | version strings. */ | |
3986 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3987 | if (s != NULL) | |
3988 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3989 | break; | |
3990 | ||
7f1204bb JJ |
3991 | case SHT_GNU_LIBLIST: |
3992 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3993 | list used for the dynamic entries, or the symbol table, or |
3994 | the version strings. */ | |
b6d1f70c AM |
3995 | s = bfd_get_section_by_name (abfd, ((sec->flags & SEC_ALLOC) |
3996 | ? ".dynstr" : ".gnu.libstr")); | |
7f1204bb JJ |
3997 | if (s != NULL) |
3998 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3999 | break; | |
4000 | ||
252b5132 | 4001 | case SHT_HASH: |
fdc90cb4 | 4002 | case SHT_GNU_HASH: |
252b5132 RH |
4003 | case SHT_GNU_versym: |
4004 | /* sh_link is the section header index of the symbol table | |
4005 | this hash table or version table is for. */ | |
4006 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4007 | if (s != NULL) | |
4008 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4009 | break; | |
dbb410c3 AM |
4010 | |
4011 | case SHT_GROUP: | |
12bd6957 | 4012 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4013 | } |
4014 | } | |
4015 | ||
3e19fb8f L |
4016 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4017 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4018 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4019 | ||
0a1b45a2 | 4020 | return true; |
252b5132 RH |
4021 | } |
4022 | ||
0a1b45a2 | 4023 | static bool |
217aa764 | 4024 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4025 | { |
4026 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4027 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4028 | if (bed->elf_backend_sym_is_global) |
4029 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4030 | |
e47bf690 | 4031 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4032 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4033 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4034 | } |
4035 | ||
76359541 TP |
4036 | /* Filter global symbols of ABFD to include in the import library. All |
4037 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4038 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4039 | the beginning of that array. | |
4040 | ||
4041 | Returns the number of symbols to keep. */ | |
4042 | ||
4043 | unsigned int | |
4044 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4045 | asymbol **syms, long symcount) | |
4046 | { | |
4047 | long src_count, dst_count = 0; | |
4048 | ||
4049 | for (src_count = 0; src_count < symcount; src_count++) | |
4050 | { | |
4051 | asymbol *sym = syms[src_count]; | |
4052 | char *name = (char *) bfd_asymbol_name (sym); | |
4053 | struct bfd_link_hash_entry *h; | |
4054 | ||
4055 | if (!sym_is_global (abfd, sym)) | |
4056 | continue; | |
4057 | ||
0a1b45a2 | 4058 | h = bfd_link_hash_lookup (info->hash, name, false, false, false); |
5df1bc57 AM |
4059 | if (h == NULL) |
4060 | continue; | |
76359541 TP |
4061 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4062 | continue; | |
76359541 TP |
4063 | if (h->linker_def || h->ldscript_def) |
4064 | continue; | |
4065 | ||
4066 | syms[dst_count++] = sym; | |
4067 | } | |
4068 | ||
4069 | syms[dst_count] = NULL; | |
4070 | ||
4071 | return dst_count; | |
4072 | } | |
4073 | ||
5372391b | 4074 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4075 | output, that are duplicates or there is no BFD section. */ |
5372391b | 4076 | |
0a1b45a2 | 4077 | static bool |
5372391b AM |
4078 | ignore_section_sym (bfd *abfd, asymbol *sym) |
4079 | { | |
c6d8cab4 L |
4080 | elf_symbol_type *type_ptr; |
4081 | ||
db0c309f | 4082 | if (sym == NULL) |
0a1b45a2 | 4083 | return false; |
db0c309f | 4084 | |
c6d8cab4 | 4085 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
0a1b45a2 | 4086 | return false; |
c6d8cab4 | 4087 | |
d1bcae83 L |
4088 | /* Ignore the section symbol if it isn't used. */ |
4089 | if ((sym->flags & BSF_SECTION_SYM_USED) == 0) | |
0a1b45a2 | 4090 | return true; |
d1bcae83 | 4091 | |
db0c309f | 4092 | if (sym->section == NULL) |
0a1b45a2 | 4093 | return true; |
db0c309f | 4094 | |
c1229f84 | 4095 | type_ptr = elf_symbol_from (sym); |
c6d8cab4 L |
4096 | return ((type_ptr != NULL |
4097 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4098 | && bfd_is_abs_section (sym->section)) | |
4099 | || !(sym->section->owner == abfd | |
db0c309f NC |
4100 | || (sym->section->output_section != NULL |
4101 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4102 | && sym->section->output_offset == 0) |
4103 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4104 | } |
4105 | ||
2633a79c AM |
4106 | /* Map symbol from it's internal number to the external number, moving |
4107 | all local symbols to be at the head of the list. */ | |
4108 | ||
0a1b45a2 | 4109 | static bool |
12bd6957 | 4110 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4111 | { |
dc810e39 | 4112 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4113 | asymbol **syms = bfd_get_outsymbols (abfd); |
4114 | asymbol **sect_syms; | |
dc810e39 AM |
4115 | unsigned int num_locals = 0; |
4116 | unsigned int num_globals = 0; | |
4117 | unsigned int num_locals2 = 0; | |
4118 | unsigned int num_globals2 = 0; | |
7292b3ac | 4119 | unsigned int max_index = 0; |
dc810e39 | 4120 | unsigned int idx; |
252b5132 RH |
4121 | asection *asect; |
4122 | asymbol **new_syms; | |
446f7ed5 | 4123 | size_t amt; |
252b5132 RH |
4124 | |
4125 | #ifdef DEBUG | |
4126 | fprintf (stderr, "elf_map_symbols\n"); | |
4127 | fflush (stderr); | |
4128 | #endif | |
4129 | ||
252b5132 RH |
4130 | for (asect = abfd->sections; asect; asect = asect->next) |
4131 | { | |
4132 | if (max_index < asect->index) | |
4133 | max_index = asect->index; | |
4134 | } | |
4135 | ||
4136 | max_index++; | |
446f7ed5 AM |
4137 | amt = max_index * sizeof (asymbol *); |
4138 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4139 | if (sect_syms == NULL) |
0a1b45a2 | 4140 | return false; |
252b5132 | 4141 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4142 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4143 | |
079e9a2f AM |
4144 | /* Init sect_syms entries for any section symbols we have already |
4145 | decided to output. */ | |
252b5132 RH |
4146 | for (idx = 0; idx < symcount; idx++) |
4147 | { | |
dc810e39 | 4148 | asymbol *sym = syms[idx]; |
c044fabd | 4149 | |
252b5132 | 4150 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4151 | && sym->value == 0 |
2633a79c AM |
4152 | && !ignore_section_sym (abfd, sym) |
4153 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4154 | { |
5372391b | 4155 | asection *sec = sym->section; |
252b5132 | 4156 | |
5372391b AM |
4157 | if (sec->owner != abfd) |
4158 | sec = sec->output_section; | |
252b5132 | 4159 | |
5372391b | 4160 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4161 | } |
4162 | } | |
4163 | ||
252b5132 RH |
4164 | /* Classify all of the symbols. */ |
4165 | for (idx = 0; idx < symcount; idx++) | |
4166 | { | |
2633a79c | 4167 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4168 | num_globals++; |
2633a79c AM |
4169 | else if (!ignore_section_sym (abfd, syms[idx])) |
4170 | num_locals++; | |
252b5132 | 4171 | } |
079e9a2f | 4172 | |
5372391b | 4173 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4174 | sections will already have a section symbol in outsymbols, but |
4175 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4176 | at least in that case. */ | |
252b5132 RH |
4177 | for (asect = abfd->sections; asect; asect = asect->next) |
4178 | { | |
d1bcae83 L |
4179 | asymbol *sym = asect->symbol; |
4180 | /* Don't include ignored section symbols. */ | |
4181 | if (!ignore_section_sym (abfd, sym) | |
4182 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4183 | { |
079e9a2f | 4184 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4185 | num_locals++; |
4186 | else | |
4187 | num_globals++; | |
252b5132 RH |
4188 | } |
4189 | } | |
4190 | ||
4191 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4192 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4193 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4194 | if (new_syms == NULL) |
0a1b45a2 | 4195 | return false; |
252b5132 RH |
4196 | |
4197 | for (idx = 0; idx < symcount; idx++) | |
4198 | { | |
4199 | asymbol *sym = syms[idx]; | |
dc810e39 | 4200 | unsigned int i; |
252b5132 | 4201 | |
2633a79c AM |
4202 | if (sym_is_global (abfd, sym)) |
4203 | i = num_locals + num_globals2++; | |
d1bcae83 | 4204 | /* Don't include ignored section symbols. */ |
2633a79c | 4205 | else if (!ignore_section_sym (abfd, sym)) |
252b5132 RH |
4206 | i = num_locals2++; |
4207 | else | |
2633a79c | 4208 | continue; |
252b5132 RH |
4209 | new_syms[i] = sym; |
4210 | sym->udata.i = i + 1; | |
4211 | } | |
4212 | for (asect = abfd->sections; asect; asect = asect->next) | |
4213 | { | |
d1bcae83 L |
4214 | asymbol *sym = asect->symbol; |
4215 | if (!ignore_section_sym (abfd, sym) | |
4216 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4217 | { |
dc810e39 | 4218 | unsigned int i; |
252b5132 | 4219 | |
079e9a2f | 4220 | sect_syms[asect->index] = sym; |
252b5132 RH |
4221 | if (!sym_is_global (abfd, sym)) |
4222 | i = num_locals2++; | |
4223 | else | |
4224 | i = num_locals + num_globals2++; | |
4225 | new_syms[i] = sym; | |
4226 | sym->udata.i = i + 1; | |
4227 | } | |
4228 | } | |
4229 | ||
4230 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4231 | ||
12bd6957 | 4232 | *pnum_locals = num_locals; |
0a1b45a2 | 4233 | return true; |
252b5132 RH |
4234 | } |
4235 | ||
4236 | /* Align to the maximum file alignment that could be required for any | |
4237 | ELF data structure. */ | |
4238 | ||
268b6b39 | 4239 | static inline file_ptr |
217aa764 | 4240 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4241 | { |
4242 | return (off + align - 1) & ~(align - 1); | |
4243 | } | |
4244 | ||
4245 | /* Assign a file position to a section, optionally aligning to the | |
4246 | required section alignment. */ | |
4247 | ||
217aa764 AM |
4248 | file_ptr |
4249 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4250 | file_ptr offset, | |
0a1b45a2 | 4251 | bool align) |
252b5132 | 4252 | { |
72de5009 | 4253 | if (align && i_shdrp->sh_addralign > 1) |
1f9b1a84 | 4254 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign & -i_shdrp->sh_addralign); |
252b5132 RH |
4255 | i_shdrp->sh_offset = offset; |
4256 | if (i_shdrp->bfd_section != NULL) | |
4257 | i_shdrp->bfd_section->filepos = offset; | |
4258 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4259 | offset += i_shdrp->sh_size; | |
4260 | return offset; | |
4261 | } | |
4262 | ||
4263 | /* Compute the file positions we are going to put the sections at, and | |
4264 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4265 | is not NULL, this is being called by the ELF backend linker. */ | |
4266 | ||
0a1b45a2 | 4267 | bool |
217aa764 AM |
4268 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4269 | struct bfd_link_info *link_info) | |
252b5132 | 4270 | { |
9c5bfbb7 | 4271 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4272 | struct fake_section_arg fsargs; |
0a1b45a2 | 4273 | bool failed; |
ef10c3ac | 4274 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4275 | Elf_Internal_Shdr *shstrtab_hdr; |
0a1b45a2 | 4276 | bool need_symtab; |
252b5132 RH |
4277 | |
4278 | if (abfd->output_has_begun) | |
0a1b45a2 | 4279 | return true; |
252b5132 RH |
4280 | |
4281 | /* Do any elf backend specific processing first. */ | |
4282 | if (bed->elf_backend_begin_write_processing) | |
4283 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4284 | ||
ed7e9d0b | 4285 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
0a1b45a2 | 4286 | return false; |
252b5132 | 4287 | |
0a1b45a2 | 4288 | fsargs.failed = false; |
d4730f92 BS |
4289 | fsargs.link_info = link_info; |
4290 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4291 | if (fsargs.failed) | |
0a1b45a2 | 4292 | return false; |
252b5132 | 4293 | |
da9f89d4 | 4294 | if (!assign_section_numbers (abfd, link_info)) |
0a1b45a2 | 4295 | return false; |
252b5132 RH |
4296 | |
4297 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4298 | need_symtab = (link_info == NULL |
4299 | && (bfd_get_symcount (abfd) > 0 | |
4300 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4301 | == HAS_RELOC))); | |
4302 | if (need_symtab) | |
252b5132 RH |
4303 | { |
4304 | /* Non-zero if doing a relocatable link. */ | |
4305 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4306 | ||
3d16b64e | 4307 | if (! swap_out_syms (abfd, &strtab, relocatable_p, link_info)) |
0a1b45a2 | 4308 | return false; |
252b5132 RH |
4309 | } |
4310 | ||
0a1b45a2 | 4311 | failed = false; |
1126897b | 4312 | if (link_info == NULL) |
dbb410c3 | 4313 | { |
1126897b | 4314 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4315 | if (failed) |
0a1b45a2 | 4316 | return false; |
dbb410c3 AM |
4317 | } |
4318 | ||
252b5132 | 4319 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4320 | /* sh_name was set in init_file_header. */ |
252b5132 | 4321 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4322 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4323 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4324 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4325 | shstrtab_hdr->sh_entsize = 0; |
4326 | shstrtab_hdr->sh_link = 0; | |
4327 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4328 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4329 | shstrtab_hdr->sh_addralign = 1; |
4330 | ||
c84fca4d | 4331 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
0a1b45a2 | 4332 | return false; |
252b5132 | 4333 | |
3516e984 | 4334 | if (need_symtab) |
252b5132 RH |
4335 | { |
4336 | file_ptr off; | |
4337 | Elf_Internal_Shdr *hdr; | |
4338 | ||
12bd6957 | 4339 | off = elf_next_file_pos (abfd); |
252b5132 | 4340 | |
6a40cf0c | 4341 | hdr = & elf_symtab_hdr (abfd); |
0a1b45a2 | 4342 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4343 | |
6a40cf0c NC |
4344 | if (elf_symtab_shndx_list (abfd) != NULL) |
4345 | { | |
4346 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4347 | if (hdr->sh_size != 0) | |
0a1b45a2 | 4348 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
6a40cf0c NC |
4349 | /* FIXME: What about other symtab_shndx sections in the list ? */ |
4350 | } | |
9ad5cbcf | 4351 | |
252b5132 | 4352 | hdr = &elf_tdata (abfd)->strtab_hdr; |
0a1b45a2 | 4353 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4354 | |
12bd6957 | 4355 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4356 | |
4357 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4358 | out. */ |
252b5132 | 4359 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4360 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
0a1b45a2 | 4361 | return false; |
ef10c3ac | 4362 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4363 | } |
4364 | ||
0a1b45a2 | 4365 | abfd->output_has_begun = true; |
252b5132 | 4366 | |
0a1b45a2 | 4367 | return true; |
252b5132 RH |
4368 | } |
4369 | ||
8df52eee AM |
4370 | /* Retrieve .eh_frame_hdr. Prior to size_dynamic_sections the |
4371 | function effectively returns whether --eh-frame-hdr is given on the | |
4372 | command line. After size_dynamic_sections the result reflects | |
4373 | whether .eh_frame_hdr will actually be output (sizing isn't done | |
4374 | until ldemul_after_allocation). */ | |
4375 | ||
4376 | static asection * | |
4377 | elf_eh_frame_hdr (const struct bfd_link_info *info) | |
4378 | { | |
4379 | if (info != NULL && is_elf_hash_table (info->hash)) | |
4380 | return elf_hash_table (info)->eh_info.hdr_sec; | |
4381 | return NULL; | |
4382 | } | |
4383 | ||
8ded5a0f AM |
4384 | /* Make an initial estimate of the size of the program header. If we |
4385 | get the number wrong here, we'll redo section placement. */ | |
4386 | ||
4387 | static bfd_size_type | |
4388 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4389 | { | |
4390 | size_t segs; | |
4391 | asection *s; | |
2b05f1b7 | 4392 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4393 | |
4394 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4395 | and one for data. */ | |
4396 | segs = 2; | |
4397 | ||
4398 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4399 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4400 | { |
4401 | /* If we have a loadable interpreter section, we need a | |
4402 | PT_INTERP segment. In this case, assume we also need a | |
4403 | PT_PHDR segment, although that may not be true for all | |
4404 | targets. */ | |
e9a38e0f | 4405 | segs += 2; |
8ded5a0f AM |
4406 | } |
4407 | ||
4408 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4409 | { | |
4410 | /* We need a PT_DYNAMIC segment. */ | |
4411 | ++segs; | |
f210dcff | 4412 | } |
08a40648 | 4413 | |
ceae84aa | 4414 | if (info != NULL && info->relro) |
f210dcff L |
4415 | { |
4416 | /* We need a PT_GNU_RELRO segment. */ | |
4417 | ++segs; | |
8ded5a0f AM |
4418 | } |
4419 | ||
8df52eee | 4420 | if (elf_eh_frame_hdr (info)) |
8ded5a0f AM |
4421 | { |
4422 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4423 | ++segs; | |
4424 | } | |
4425 | ||
12bd6957 | 4426 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4427 | { |
2b05f1b7 L |
4428 | /* We need a PT_GNU_STACK segment. */ |
4429 | ++segs; | |
4430 | } | |
94b11780 | 4431 | |
0a59decb L |
4432 | s = bfd_get_section_by_name (abfd, |
4433 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4434 | if (s != NULL && s->size != 0) | |
4435 | { | |
4436 | /* We need a PT_GNU_PROPERTY segment. */ | |
4437 | ++segs; | |
4438 | } | |
4439 | ||
2b05f1b7 L |
4440 | for (s = abfd->sections; s != NULL; s = s->next) |
4441 | { | |
8ded5a0f | 4442 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4443 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4444 | { |
23e463ed | 4445 | unsigned int alignment_power; |
8ded5a0f AM |
4446 | /* We need a PT_NOTE segment. */ |
4447 | ++segs; | |
23e463ed L |
4448 | /* Try to create just one PT_NOTE segment for all adjacent |
4449 | loadable SHT_NOTE sections. gABI requires that within a | |
4450 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4451 | each note should have the same alignment. So we check | |
4452 | whether the sections are correctly aligned. */ | |
4453 | alignment_power = s->alignment_power; | |
4454 | while (s->next != NULL | |
4455 | && s->next->alignment_power == alignment_power | |
4456 | && (s->next->flags & SEC_LOAD) != 0 | |
4457 | && elf_section_type (s->next) == SHT_NOTE) | |
4458 | s = s->next; | |
8ded5a0f AM |
4459 | } |
4460 | } | |
4461 | ||
4462 | for (s = abfd->sections; s != NULL; s = s->next) | |
4463 | { | |
4464 | if (s->flags & SEC_THREAD_LOCAL) | |
4465 | { | |
4466 | /* We need a PT_TLS segment. */ | |
4467 | ++segs; | |
4468 | break; | |
4469 | } | |
4470 | } | |
4471 | ||
2b05f1b7 | 4472 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4473 | |
df3a023b AM |
4474 | if ((abfd->flags & D_PAGED) != 0 |
4475 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4476 | { | |
4477 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
c410035d AM |
4478 | bfd_vma commonpagesize; |
4479 | unsigned int page_align_power; | |
4480 | ||
4481 | if (info != NULL) | |
4482 | commonpagesize = info->commonpagesize; | |
4483 | else | |
4484 | commonpagesize = bed->commonpagesize; | |
4485 | page_align_power = bfd_log2 (commonpagesize); | |
df3a023b AM |
4486 | for (s = abfd->sections; s != NULL; s = s->next) |
4487 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4488 | { | |
4489 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4490 | { | |
4491 | _bfd_error_handler | |
4492 | /* xgettext:c-format */ | |
4493 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4494 | "sh_info field: %d"), | |
4495 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4496 | continue; | |
4497 | } | |
4498 | /* Align mbind section to page size. */ | |
4499 | if (s->alignment_power < page_align_power) | |
4500 | s->alignment_power = page_align_power; | |
4501 | segs ++; | |
4502 | } | |
4503 | } | |
4504 | ||
4505 | /* Let the backend count up any program headers it might need. */ | |
4506 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4507 | { |
4508 | int a; | |
4509 | ||
4510 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4511 | if (a == -1) | |
4512 | abort (); | |
4513 | segs += a; | |
4514 | } | |
4515 | ||
4516 | return segs * bed->s->sizeof_phdr; | |
4517 | } | |
4518 | ||
2ea37f1c NC |
4519 | /* Find the segment that contains the output_section of section. */ |
4520 | ||
4521 | Elf_Internal_Phdr * | |
4522 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4523 | { | |
4524 | struct elf_segment_map *m; | |
4525 | Elf_Internal_Phdr *p; | |
4526 | ||
12bd6957 | 4527 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4528 | m != NULL; |
4529 | m = m->next, p++) | |
4530 | { | |
4531 | int i; | |
4532 | ||
4533 | for (i = m->count - 1; i >= 0; i--) | |
4534 | if (m->sections[i] == section) | |
4535 | return p; | |
4536 | } | |
4537 | ||
4538 | return NULL; | |
4539 | } | |
4540 | ||
252b5132 RH |
4541 | /* Create a mapping from a set of sections to a program segment. */ |
4542 | ||
217aa764 AM |
4543 | static struct elf_segment_map * |
4544 | make_mapping (bfd *abfd, | |
4545 | asection **sections, | |
4546 | unsigned int from, | |
4547 | unsigned int to, | |
0a1b45a2 | 4548 | bool phdr) |
252b5132 RH |
4549 | { |
4550 | struct elf_segment_map *m; | |
4551 | unsigned int i; | |
4552 | asection **hdrpp; | |
986f0783 | 4553 | size_t amt; |
252b5132 | 4554 | |
00bee008 AM |
4555 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4556 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4557 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4558 | if (m == NULL) |
4559 | return NULL; | |
4560 | m->next = NULL; | |
4561 | m->p_type = PT_LOAD; | |
4562 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4563 | m->sections[i - from] = *hdrpp; | |
4564 | m->count = to - from; | |
4565 | ||
4566 | if (from == 0 && phdr) | |
4567 | { | |
4568 | /* Include the headers in the first PT_LOAD segment. */ | |
4569 | m->includes_filehdr = 1; | |
4570 | m->includes_phdrs = 1; | |
4571 | } | |
4572 | ||
4573 | return m; | |
4574 | } | |
4575 | ||
229fcec5 MM |
4576 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4577 | on failure. */ | |
4578 | ||
4579 | struct elf_segment_map * | |
4580 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4581 | { | |
4582 | struct elf_segment_map *m; | |
4583 | ||
a50b1753 | 4584 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4585 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4586 | if (m == NULL) |
4587 | return NULL; | |
4588 | m->next = NULL; | |
4589 | m->p_type = PT_DYNAMIC; | |
4590 | m->count = 1; | |
4591 | m->sections[0] = dynsec; | |
08a40648 | 4592 | |
229fcec5 MM |
4593 | return m; |
4594 | } | |
4595 | ||
8ded5a0f | 4596 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4597 | |
0a1b45a2 | 4598 | static bool |
3dea8fca AM |
4599 | elf_modify_segment_map (bfd *abfd, |
4600 | struct bfd_link_info *info, | |
0a1b45a2 | 4601 | bool remove_empty_load) |
252b5132 | 4602 | { |
252e386e | 4603 | struct elf_segment_map **m; |
8ded5a0f | 4604 | const struct elf_backend_data *bed; |
252b5132 | 4605 | |
8ded5a0f AM |
4606 | /* The placement algorithm assumes that non allocated sections are |
4607 | not in PT_LOAD segments. We ensure this here by removing such | |
4608 | sections from the segment map. We also remove excluded | |
252e386e AM |
4609 | sections. Finally, any PT_LOAD segment without sections is |
4610 | removed. */ | |
12bd6957 | 4611 | m = &elf_seg_map (abfd); |
252e386e | 4612 | while (*m) |
8ded5a0f AM |
4613 | { |
4614 | unsigned int i, new_count; | |
252b5132 | 4615 | |
252e386e | 4616 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4617 | { |
252e386e AM |
4618 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4619 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4620 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4621 | { |
252e386e AM |
4622 | (*m)->sections[new_count] = (*m)->sections[i]; |
4623 | new_count++; | |
8ded5a0f AM |
4624 | } |
4625 | } | |
252e386e | 4626 | (*m)->count = new_count; |
252b5132 | 4627 | |
1a9ccd70 NC |
4628 | if (remove_empty_load |
4629 | && (*m)->p_type == PT_LOAD | |
4630 | && (*m)->count == 0 | |
4631 | && !(*m)->includes_phdrs) | |
252e386e AM |
4632 | *m = (*m)->next; |
4633 | else | |
4634 | m = &(*m)->next; | |
8ded5a0f | 4635 | } |
252b5132 | 4636 | |
8ded5a0f AM |
4637 | bed = get_elf_backend_data (abfd); |
4638 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4639 | { |
252e386e | 4640 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
0a1b45a2 | 4641 | return false; |
252b5132 | 4642 | } |
252b5132 | 4643 | |
0a1b45a2 | 4644 | return true; |
8ded5a0f | 4645 | } |
252b5132 | 4646 | |
dbc88fc1 AM |
4647 | #define IS_TBSS(s) \ |
4648 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4649 | ||
e2cbf4df L |
4650 | /* Set up a mapping from BFD sections to program segments. Update |
4651 | NEED_LAYOUT if the section layout is changed. */ | |
252b5132 | 4652 | |
0a1b45a2 | 4653 | bool |
e2cbf4df L |
4654 | _bfd_elf_map_sections_to_segments (bfd *abfd, |
4655 | struct bfd_link_info *info, | |
23cc1de5 | 4656 | bool *need_layout) |
8ded5a0f AM |
4657 | { |
4658 | unsigned int count; | |
4659 | struct elf_segment_map *m; | |
4660 | asection **sections = NULL; | |
4661 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
0a1b45a2 | 4662 | bool no_user_phdrs; |
252b5132 | 4663 | |
12bd6957 | 4664 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4665 | |
4666 | if (info != NULL) | |
23cc1de5 L |
4667 | { |
4668 | info->user_phdrs = !no_user_phdrs; | |
4669 | ||
4670 | /* Size the relative relocations if DT_RELR is enabled. */ | |
4671 | if (info->enable_dt_relr | |
4672 | && need_layout != NULL | |
4673 | && bed->size_relative_relocs | |
4674 | && !bed->size_relative_relocs (info, need_layout)) | |
4675 | info->callbacks->einfo | |
4676 | (_("%F%P: failed to size relative relocations\n")); | |
4677 | } | |
d324f6d6 | 4678 | |
3dea8fca | 4679 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4680 | { |
8ded5a0f AM |
4681 | asection *s; |
4682 | unsigned int i; | |
4683 | struct elf_segment_map *mfirst; | |
4684 | struct elf_segment_map **pm; | |
4685 | asection *last_hdr; | |
4686 | bfd_vma last_size; | |
00bee008 | 4687 | unsigned int hdr_index; |
8ded5a0f AM |
4688 | bfd_vma maxpagesize; |
4689 | asection **hdrpp; | |
0a1b45a2 AM |
4690 | bool phdr_in_segment; |
4691 | bool writable; | |
4692 | bool executable; | |
446f7ed5 | 4693 | unsigned int tls_count = 0; |
8ded5a0f | 4694 | asection *first_tls = NULL; |
a91e1603 | 4695 | asection *first_mbind = NULL; |
8ded5a0f | 4696 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4697 | size_t amt; |
66631823 CE |
4698 | bfd_vma addr_mask, wrap_to = 0; /* Bytes. */ |
4699 | bfd_size_type phdr_size; /* Octets/bytes. */ | |
502794d4 | 4700 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 4701 | |
8ded5a0f | 4702 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4703 | |
446f7ed5 AM |
4704 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4705 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4706 | if (sections == NULL) |
252b5132 | 4707 | goto error_return; |
252b5132 | 4708 | |
8d06853e AM |
4709 | /* Calculate top address, avoiding undefined behaviour of shift |
4710 | left operator when shift count is equal to size of type | |
4711 | being shifted. */ | |
4712 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4713 | addr_mask = (addr_mask << 1) + 1; | |
4714 | ||
8ded5a0f AM |
4715 | i = 0; |
4716 | for (s = abfd->sections; s != NULL; s = s->next) | |
4717 | { | |
4718 | if ((s->flags & SEC_ALLOC) != 0) | |
4719 | { | |
48db3297 AM |
4720 | /* target_index is unused until bfd_elf_final_link |
4721 | starts output of section symbols. Use it to make | |
4722 | qsort stable. */ | |
4723 | s->target_index = i; | |
8ded5a0f AM |
4724 | sections[i] = s; |
4725 | ++i; | |
8d06853e | 4726 | /* A wrapping section potentially clashes with header. */ |
66631823 CE |
4727 | if (((s->lma + s->size / opb) & addr_mask) < (s->lma & addr_mask)) |
4728 | wrap_to = (s->lma + s->size / opb) & addr_mask; | |
8ded5a0f AM |
4729 | } |
4730 | } | |
4731 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4732 | count = i; | |
252b5132 | 4733 | |
8ded5a0f | 4734 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4735 | |
64029e93 AM |
4736 | phdr_size = elf_program_header_size (abfd); |
4737 | if (phdr_size == (bfd_size_type) -1) | |
4738 | phdr_size = get_program_header_size (abfd, info); | |
4739 | phdr_size += bed->s->sizeof_ehdr; | |
502794d4 CE |
4740 | /* phdr_size is compared to LMA values which are in bytes. */ |
4741 | phdr_size /= opb; | |
c410035d AM |
4742 | if (info != NULL) |
4743 | maxpagesize = info->maxpagesize; | |
4744 | else | |
4745 | maxpagesize = bed->maxpagesize; | |
64029e93 AM |
4746 | if (maxpagesize == 0) |
4747 | maxpagesize = 1; | |
4748 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4749 | if (count != 0 | |
4750 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4751 | >= (phdr_size & (maxpagesize - 1)))) | |
4752 | /* For compatibility with old scripts that may not be using | |
4753 | SIZEOF_HEADERS, add headers when it looks like space has | |
4754 | been left for them. */ | |
0a1b45a2 | 4755 | phdr_in_segment = true; |
252b5132 | 4756 | |
64029e93 | 4757 | /* Build the mapping. */ |
8ded5a0f AM |
4758 | mfirst = NULL; |
4759 | pm = &mfirst; | |
252b5132 | 4760 | |
8ded5a0f AM |
4761 | /* If we have a .interp section, then create a PT_PHDR segment for |
4762 | the program headers and a PT_INTERP segment for the .interp | |
4763 | section. */ | |
4764 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4765 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4766 | { |
4767 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4768 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4769 | if (m == NULL) |
4770 | goto error_return; | |
4771 | m->next = NULL; | |
4772 | m->p_type = PT_PHDR; | |
f882209d | 4773 | m->p_flags = PF_R; |
8ded5a0f AM |
4774 | m->p_flags_valid = 1; |
4775 | m->includes_phdrs = 1; | |
0a1b45a2 | 4776 | phdr_in_segment = true; |
8ded5a0f AM |
4777 | *pm = m; |
4778 | pm = &m->next; | |
252b5132 | 4779 | |
8ded5a0f | 4780 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4781 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4782 | if (m == NULL) |
4783 | goto error_return; | |
4784 | m->next = NULL; | |
4785 | m->p_type = PT_INTERP; | |
4786 | m->count = 1; | |
4787 | m->sections[0] = s; | |
4788 | ||
4789 | *pm = m; | |
4790 | pm = &m->next; | |
252b5132 | 4791 | } |
8ded5a0f AM |
4792 | |
4793 | /* Look through the sections. We put sections in the same program | |
4794 | segment when the start of the second section can be placed within | |
4795 | a few bytes of the end of the first section. */ | |
4796 | last_hdr = NULL; | |
4797 | last_size = 0; | |
00bee008 | 4798 | hdr_index = 0; |
0a1b45a2 AM |
4799 | writable = false; |
4800 | executable = false; | |
8ded5a0f AM |
4801 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4802 | if (dynsec != NULL | |
4803 | && (dynsec->flags & SEC_LOAD) == 0) | |
4804 | dynsec = NULL; | |
4805 | ||
64029e93 | 4806 | if ((abfd->flags & D_PAGED) == 0) |
0a1b45a2 | 4807 | phdr_in_segment = false; |
64029e93 | 4808 | |
8ded5a0f AM |
4809 | /* Deal with -Ttext or something similar such that the first section |
4810 | is not adjacent to the program headers. This is an | |
4811 | approximation, since at this point we don't know exactly how many | |
4812 | program headers we will need. */ | |
64029e93 | 4813 | if (phdr_in_segment && count > 0) |
252b5132 | 4814 | { |
66631823 | 4815 | bfd_vma phdr_lma; /* Bytes. */ |
0a1b45a2 | 4816 | bool separate_phdr = false; |
64029e93 AM |
4817 | |
4818 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4819 | if (info != NULL | |
4820 | && info->separate_code | |
4821 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4822 | { |
64029e93 AM |
4823 | /* If data sections should be separate from code and |
4824 | thus not executable, and the first section is | |
4825 | executable then put the file and program headers in | |
4826 | their own PT_LOAD. */ | |
0a1b45a2 | 4827 | separate_phdr = true; |
64029e93 AM |
4828 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) |
4829 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4830 | { | |
4831 | /* The file and program headers are currently on the | |
4832 | same page as the first section. Put them on the | |
4833 | previous page if we can. */ | |
4834 | if (phdr_lma >= maxpagesize) | |
4835 | phdr_lma -= maxpagesize; | |
4836 | else | |
0a1b45a2 | 4837 | separate_phdr = false; |
64029e93 AM |
4838 | } |
4839 | } | |
4840 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4841 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4842 | /* If file and program headers would be placed at the end | |
4843 | of memory then it's probably better to omit them. */ | |
0a1b45a2 | 4844 | phdr_in_segment = false; |
64029e93 AM |
4845 | else if (phdr_lma < wrap_to) |
4846 | /* If a section wraps around to where we'll be placing | |
4847 | file and program headers, then the headers will be | |
4848 | overwritten. */ | |
0a1b45a2 | 4849 | phdr_in_segment = false; |
64029e93 AM |
4850 | else if (separate_phdr) |
4851 | { | |
4852 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4853 | if (m == NULL) | |
4854 | goto error_return; | |
66631823 | 4855 | m->p_paddr = phdr_lma * opb; |
64029e93 AM |
4856 | m->p_vaddr_offset |
4857 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4858 | m->p_paddr_valid = 1; | |
4859 | *pm = m; | |
4860 | pm = &m->next; | |
0a1b45a2 | 4861 | phdr_in_segment = false; |
1a9ccd70 | 4862 | } |
252b5132 RH |
4863 | } |
4864 | ||
8ded5a0f | 4865 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4866 | { |
8ded5a0f | 4867 | asection *hdr; |
0a1b45a2 | 4868 | bool new_segment; |
8ded5a0f AM |
4869 | |
4870 | hdr = *hdrpp; | |
4871 | ||
4872 | /* See if this section and the last one will fit in the same | |
4873 | segment. */ | |
4874 | ||
4875 | if (last_hdr == NULL) | |
4876 | { | |
4877 | /* If we don't have a segment yet, then we don't need a new | |
4878 | one (we build the last one after this loop). */ | |
0a1b45a2 | 4879 | new_segment = false; |
8ded5a0f AM |
4880 | } |
4881 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4882 | { | |
4883 | /* If this section has a different relation between the | |
4884 | virtual address and the load address, then we need a new | |
4885 | segment. */ | |
0a1b45a2 | 4886 | new_segment = true; |
8ded5a0f | 4887 | } |
b5599592 AM |
4888 | else if (hdr->lma < last_hdr->lma + last_size |
4889 | || last_hdr->lma + last_size < last_hdr->lma) | |
4890 | { | |
4891 | /* If this section has a load address that makes it overlap | |
4892 | the previous section, then we need a new segment. */ | |
0a1b45a2 | 4893 | new_segment = true; |
b5599592 | 4894 | } |
76cb3a89 AM |
4895 | else if ((abfd->flags & D_PAGED) != 0 |
4896 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4897 | == (hdr->lma & -maxpagesize))) | |
4898 | { | |
4899 | /* If we are demand paged then we can't map two disk | |
4900 | pages onto the same memory page. */ | |
0a1b45a2 | 4901 | new_segment = false; |
76cb3a89 | 4902 | } |
39948a60 NC |
4903 | /* In the next test we have to be careful when last_hdr->lma is close |
4904 | to the end of the address space. If the aligned address wraps | |
4905 | around to the start of the address space, then there are no more | |
4906 | pages left in memory and it is OK to assume that the current | |
4907 | section can be included in the current segment. */ | |
76cb3a89 AM |
4908 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4909 | + maxpagesize > last_hdr->lma) | |
4910 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4911 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4912 | { |
4913 | /* If putting this section in this segment would force us to | |
4914 | skip a page in the segment, then we need a new segment. */ | |
0a1b45a2 | 4915 | new_segment = true; |
8ded5a0f AM |
4916 | } |
4917 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4918 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4919 | { |
e5654c0f AM |
4920 | /* We don't want to put a loaded section after a |
4921 | nonloaded (ie. bss style) section in the same segment | |
4922 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4923 | Consider .tbss sections as loaded for this purpose. */ |
0a1b45a2 | 4924 | new_segment = true; |
8ded5a0f AM |
4925 | } |
4926 | else if ((abfd->flags & D_PAGED) == 0) | |
4927 | { | |
4928 | /* If the file is not demand paged, which means that we | |
4929 | don't require the sections to be correctly aligned in the | |
4930 | file, then there is no other reason for a new segment. */ | |
0a1b45a2 | 4931 | new_segment = false; |
8ded5a0f | 4932 | } |
2888249f L |
4933 | else if (info != NULL |
4934 | && info->separate_code | |
4935 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4936 | { | |
0a1b45a2 | 4937 | new_segment = true; |
2888249f | 4938 | } |
8ded5a0f | 4939 | else if (! writable |
76cb3a89 | 4940 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4941 | { |
4942 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4943 | segment. */ |
0a1b45a2 | 4944 | new_segment = true; |
8ded5a0f AM |
4945 | } |
4946 | else | |
4947 | { | |
4948 | /* Otherwise, we can use the same segment. */ | |
0a1b45a2 | 4949 | new_segment = false; |
8ded5a0f AM |
4950 | } |
4951 | ||
2889e75b | 4952 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4953 | if (last_hdr != NULL |
4954 | && info != NULL | |
4955 | && info->callbacks->override_segment_assignment != NULL) | |
4956 | new_segment | |
4957 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4958 | last_hdr, | |
4959 | new_segment); | |
2889e75b | 4960 | |
8ded5a0f AM |
4961 | if (! new_segment) |
4962 | { | |
4963 | if ((hdr->flags & SEC_READONLY) == 0) | |
0a1b45a2 | 4964 | writable = true; |
2888249f | 4965 | if ((hdr->flags & SEC_CODE) != 0) |
0a1b45a2 | 4966 | executable = true; |
8ded5a0f AM |
4967 | last_hdr = hdr; |
4968 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4969 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
8ded5a0f AM |
4970 | continue; |
4971 | } | |
4972 | ||
4973 | /* We need a new program segment. We must create a new program | |
00bee008 | 4974 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4975 | |
00bee008 | 4976 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4977 | if (m == NULL) |
4978 | goto error_return; | |
4979 | ||
4980 | *pm = m; | |
4981 | pm = &m->next; | |
4982 | ||
252b5132 | 4983 | if ((hdr->flags & SEC_READONLY) == 0) |
0a1b45a2 | 4984 | writable = true; |
8ded5a0f | 4985 | else |
0a1b45a2 | 4986 | writable = false; |
8ded5a0f | 4987 | |
2888249f | 4988 | if ((hdr->flags & SEC_CODE) == 0) |
0a1b45a2 | 4989 | executable = false; |
2888249f | 4990 | else |
0a1b45a2 | 4991 | executable = true; |
2888249f | 4992 | |
baaff79e JJ |
4993 | last_hdr = hdr; |
4994 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4995 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
00bee008 | 4996 | hdr_index = i; |
0a1b45a2 | 4997 | phdr_in_segment = false; |
252b5132 RH |
4998 | } |
4999 | ||
86b2281f AM |
5000 | /* Create a final PT_LOAD program segment, but not if it's just |
5001 | for .tbss. */ | |
5002 | if (last_hdr != NULL | |
00bee008 | 5003 | && (i - hdr_index != 1 |
dbc88fc1 | 5004 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 5005 | { |
00bee008 | 5006 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
5007 | if (m == NULL) |
5008 | goto error_return; | |
252b5132 | 5009 | |
8ded5a0f AM |
5010 | *pm = m; |
5011 | pm = &m->next; | |
5012 | } | |
252b5132 | 5013 | |
8ded5a0f AM |
5014 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
5015 | if (dynsec != NULL) | |
5016 | { | |
5017 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
5018 | if (m == NULL) | |
5019 | goto error_return; | |
5020 | *pm = m; | |
5021 | pm = &m->next; | |
5022 | } | |
252b5132 | 5023 | |
23e463ed | 5024 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
5025 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5026 | because if we link together nonloadable .note sections and | |
5027 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5028 | in the output file. */ |
8ded5a0f AM |
5029 | for (s = abfd->sections; s != NULL; s = s->next) |
5030 | { | |
5031 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5032 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5033 | { |
1c5265b5 | 5034 | asection *s2; |
23e463ed | 5035 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5036 | |
5037 | count = 1; | |
23e463ed L |
5038 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5039 | { | |
5040 | if (s2->next->alignment_power == alignment_power | |
5041 | && (s2->next->flags & SEC_LOAD) != 0 | |
5042 | && elf_section_type (s2->next) == SHT_NOTE | |
66631823 | 5043 | && align_power (s2->lma + s2->size / opb, |
23e463ed L |
5044 | alignment_power) |
5045 | == s2->next->lma) | |
5046 | count++; | |
5047 | else | |
5048 | break; | |
5049 | } | |
00bee008 AM |
5050 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5051 | amt += count * sizeof (asection *); | |
a50b1753 | 5052 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5053 | if (m == NULL) |
5054 | goto error_return; | |
5055 | m->next = NULL; | |
5056 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5057 | m->count = count; |
5058 | while (count > 1) | |
5059 | { | |
5060 | m->sections[m->count - count--] = s; | |
5061 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5062 | s = s->next; | |
5063 | } | |
5064 | m->sections[m->count - 1] = s; | |
5065 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5066 | *pm = m; |
5067 | pm = &m->next; | |
5068 | } | |
5069 | if (s->flags & SEC_THREAD_LOCAL) | |
5070 | { | |
5071 | if (! tls_count) | |
5072 | first_tls = s; | |
5073 | tls_count++; | |
5074 | } | |
a91e1603 L |
5075 | if (first_mbind == NULL |
5076 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5077 | first_mbind = s; | |
8ded5a0f | 5078 | } |
252b5132 | 5079 | |
8ded5a0f AM |
5080 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5081 | if (tls_count > 0) | |
5082 | { | |
00bee008 AM |
5083 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5084 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5085 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5086 | if (m == NULL) |
5087 | goto error_return; | |
5088 | m->next = NULL; | |
5089 | m->p_type = PT_TLS; | |
5090 | m->count = tls_count; | |
5091 | /* Mandated PF_R. */ | |
5092 | m->p_flags = PF_R; | |
5093 | m->p_flags_valid = 1; | |
d923cae0 | 5094 | s = first_tls; |
446f7ed5 | 5095 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5096 | { |
d923cae0 L |
5097 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5098 | { | |
5099 | _bfd_error_handler | |
871b3ab2 | 5100 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5101 | s = first_tls; |
5102 | i = 0; | |
446f7ed5 | 5103 | while (i < tls_count) |
d923cae0 L |
5104 | { |
5105 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5106 | { | |
871b3ab2 | 5107 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5108 | i++; |
5109 | } | |
5110 | else | |
871b3ab2 | 5111 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5112 | s = s->next; |
5113 | } | |
5114 | bfd_set_error (bfd_error_bad_value); | |
5115 | goto error_return; | |
5116 | } | |
5117 | m->sections[i] = s; | |
5118 | s = s->next; | |
8ded5a0f | 5119 | } |
252b5132 | 5120 | |
8ded5a0f AM |
5121 | *pm = m; |
5122 | pm = &m->next; | |
5123 | } | |
252b5132 | 5124 | |
df3a023b AM |
5125 | if (first_mbind |
5126 | && (abfd->flags & D_PAGED) != 0 | |
5127 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5128 | for (s = first_mbind; s != NULL; s = s->next) |
5129 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5130 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5131 | { |
5132 | /* Mandated PF_R. */ | |
5133 | unsigned long p_flags = PF_R; | |
5134 | if ((s->flags & SEC_READONLY) == 0) | |
5135 | p_flags |= PF_W; | |
5136 | if ((s->flags & SEC_CODE) != 0) | |
5137 | p_flags |= PF_X; | |
5138 | ||
5139 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5140 | m = bfd_zalloc (abfd, amt); | |
5141 | if (m == NULL) | |
5142 | goto error_return; | |
5143 | m->next = NULL; | |
5144 | m->p_type = (PT_GNU_MBIND_LO | |
5145 | + elf_section_data (s)->this_hdr.sh_info); | |
5146 | m->count = 1; | |
5147 | m->p_flags_valid = 1; | |
5148 | m->sections[0] = s; | |
5149 | m->p_flags = p_flags; | |
5150 | ||
5151 | *pm = m; | |
5152 | pm = &m->next; | |
5153 | } | |
5154 | ||
0a59decb L |
5155 | s = bfd_get_section_by_name (abfd, |
5156 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5157 | if (s != NULL && s->size != 0) | |
5158 | { | |
5159 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5160 | m = bfd_zalloc (abfd, amt); | |
5161 | if (m == NULL) | |
5162 | goto error_return; | |
5163 | m->next = NULL; | |
5164 | m->p_type = PT_GNU_PROPERTY; | |
5165 | m->count = 1; | |
5166 | m->p_flags_valid = 1; | |
5167 | m->sections[0] = s; | |
5168 | m->p_flags = PF_R; | |
5169 | *pm = m; | |
5170 | pm = &m->next; | |
5171 | } | |
5172 | ||
8ded5a0f AM |
5173 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5174 | segment. */ | |
8df52eee | 5175 | eh_frame_hdr = elf_eh_frame_hdr (info); |
8ded5a0f AM |
5176 | if (eh_frame_hdr != NULL |
5177 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5178 | { |
dc810e39 | 5179 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5180 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5181 | if (m == NULL) |
5182 | goto error_return; | |
5183 | m->next = NULL; | |
8ded5a0f | 5184 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5185 | m->count = 1; |
8ded5a0f | 5186 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5187 | |
5188 | *pm = m; | |
5189 | pm = &m->next; | |
5190 | } | |
13ae64f3 | 5191 | |
12bd6957 | 5192 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5193 | { |
8ded5a0f | 5194 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5195 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5196 | if (m == NULL) |
5197 | goto error_return; | |
5198 | m->next = NULL; | |
2b05f1b7 | 5199 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5200 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5201 | m->p_align = bed->stack_align; |
8ded5a0f | 5202 | m->p_flags_valid = 1; |
04c3a755 NS |
5203 | m->p_align_valid = m->p_align != 0; |
5204 | if (info->stacksize > 0) | |
5205 | { | |
5206 | m->p_size = info->stacksize; | |
5207 | m->p_size_valid = 1; | |
5208 | } | |
252b5132 | 5209 | |
8ded5a0f AM |
5210 | *pm = m; |
5211 | pm = &m->next; | |
5212 | } | |
65765700 | 5213 | |
ceae84aa | 5214 | if (info != NULL && info->relro) |
8ded5a0f | 5215 | { |
f210dcff L |
5216 | for (m = mfirst; m != NULL; m = m->next) |
5217 | { | |
3832a4d8 AM |
5218 | if (m->p_type == PT_LOAD |
5219 | && m->count != 0 | |
5220 | && m->sections[0]->vma >= info->relro_start | |
5221 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5222 | { |
3832a4d8 AM |
5223 | i = m->count; |
5224 | while (--i != (unsigned) -1) | |
ec2e748a NC |
5225 | { |
5226 | if (m->sections[i]->size > 0 | |
11c6a7c6 AM |
5227 | && (m->sections[i]->flags & SEC_LOAD) != 0 |
5228 | && (m->sections[i]->flags & SEC_HAS_CONTENTS) != 0) | |
ec2e748a NC |
5229 | break; |
5230 | } | |
3832a4d8 | 5231 | |
43a8475c | 5232 | if (i != (unsigned) -1) |
f210dcff L |
5233 | break; |
5234 | } | |
be01b344 | 5235 | } |
f210dcff L |
5236 | |
5237 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5238 | if (m != NULL) | |
5239 | { | |
5240 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5241 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5242 | if (m == NULL) |
5243 | goto error_return; | |
5244 | m->next = NULL; | |
5245 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5246 | *pm = m; |
5247 | pm = &m->next; | |
5248 | } | |
8ded5a0f | 5249 | } |
9ee5e499 | 5250 | |
8ded5a0f | 5251 | free (sections); |
12bd6957 | 5252 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5253 | } |
5254 | ||
3dea8fca | 5255 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
0a1b45a2 | 5256 | return false; |
8c37241b | 5257 | |
12bd6957 | 5258 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5259 | ++count; |
12bd6957 | 5260 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5261 | |
0a1b45a2 | 5262 | return true; |
252b5132 RH |
5263 | |
5264 | error_return: | |
c9594989 | 5265 | free (sections); |
0a1b45a2 | 5266 | return false; |
252b5132 RH |
5267 | } |
5268 | ||
5269 | /* Sort sections by address. */ | |
5270 | ||
5271 | static int | |
217aa764 | 5272 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5273 | { |
5274 | const asection *sec1 = *(const asection **) arg1; | |
5275 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5276 | bfd_size_type size1, size2; |
252b5132 RH |
5277 | |
5278 | /* Sort by LMA first, since this is the address used to | |
5279 | place the section into a segment. */ | |
5280 | if (sec1->lma < sec2->lma) | |
5281 | return -1; | |
5282 | else if (sec1->lma > sec2->lma) | |
5283 | return 1; | |
5284 | ||
5285 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5286 | the same, and this will do nothing. */ | |
5287 | if (sec1->vma < sec2->vma) | |
5288 | return -1; | |
5289 | else if (sec1->vma > sec2->vma) | |
5290 | return 1; | |
5291 | ||
5292 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5293 | ||
8d748d1d AM |
5294 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 \ |
5295 | && (x)->size != 0) | |
252b5132 RH |
5296 | |
5297 | if (TOEND (sec1)) | |
5298 | { | |
48db3297 | 5299 | if (!TOEND (sec2)) |
252b5132 RH |
5300 | return 1; |
5301 | } | |
00a7cdc5 | 5302 | else if (TOEND (sec2)) |
252b5132 RH |
5303 | return -1; |
5304 | ||
5305 | #undef TOEND | |
5306 | ||
00a7cdc5 NC |
5307 | /* Sort by size, to put zero sized sections |
5308 | before others at the same address. */ | |
252b5132 | 5309 | |
eea6121a AM |
5310 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5311 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5312 | |
5313 | if (size1 < size2) | |
252b5132 | 5314 | return -1; |
eecdbe52 | 5315 | if (size1 > size2) |
252b5132 RH |
5316 | return 1; |
5317 | ||
5318 | return sec1->target_index - sec2->target_index; | |
5319 | } | |
5320 | ||
30fe1832 AM |
5321 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5322 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5323 | ||
5324 | static int | |
5325 | elf_sort_segments (const void *arg1, const void *arg2) | |
5326 | { | |
5327 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5328 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5329 | ||
5330 | if (m1->p_type != m2->p_type) | |
5331 | { | |
5332 | if (m1->p_type == PT_NULL) | |
5333 | return 1; | |
5334 | if (m2->p_type == PT_NULL) | |
5335 | return -1; | |
5336 | return m1->p_type < m2->p_type ? -1 : 1; | |
5337 | } | |
5338 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5339 | return m1->includes_filehdr ? -1 : 1; | |
5340 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5341 | return m1->no_sort_lma ? -1 : 1; | |
5342 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5343 | { | |
4b3ecb3b | 5344 | bfd_vma lma1, lma2; /* Octets. */ |
30fe1832 AM |
5345 | lma1 = 0; |
5346 | if (m1->p_paddr_valid) | |
4b3ecb3b | 5347 | lma1 = m1->p_paddr; |
30fe1832 | 5348 | else if (m1->count != 0) |
4b3ecb3b AM |
5349 | { |
5350 | unsigned int opb = bfd_octets_per_byte (m1->sections[0]->owner, | |
5351 | m1->sections[0]); | |
5352 | lma1 = (m1->sections[0]->lma + m1->p_vaddr_offset) * opb; | |
5353 | } | |
30fe1832 AM |
5354 | lma2 = 0; |
5355 | if (m2->p_paddr_valid) | |
4b3ecb3b | 5356 | lma2 = m2->p_paddr; |
30fe1832 | 5357 | else if (m2->count != 0) |
4b3ecb3b AM |
5358 | { |
5359 | unsigned int opb = bfd_octets_per_byte (m2->sections[0]->owner, | |
5360 | m2->sections[0]); | |
5361 | lma2 = (m2->sections[0]->lma + m2->p_vaddr_offset) * opb; | |
5362 | } | |
30fe1832 AM |
5363 | if (lma1 != lma2) |
5364 | return lma1 < lma2 ? -1 : 1; | |
5365 | } | |
5366 | if (m1->idx != m2->idx) | |
5367 | return m1->idx < m2->idx ? -1 : 1; | |
5368 | return 0; | |
5369 | } | |
5370 | ||
340b6d91 AC |
5371 | /* Ian Lance Taylor writes: |
5372 | ||
5373 | We shouldn't be using % with a negative signed number. That's just | |
5374 | not good. We have to make sure either that the number is not | |
5375 | negative, or that the number has an unsigned type. When the types | |
5376 | are all the same size they wind up as unsigned. When file_ptr is a | |
5377 | larger signed type, the arithmetic winds up as signed long long, | |
5378 | which is wrong. | |
5379 | ||
5380 | What we're trying to say here is something like ``increase OFF by | |
5381 | the least amount that will cause it to be equal to the VMA modulo | |
5382 | the page size.'' */ | |
5383 | /* In other words, something like: | |
5384 | ||
5385 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5386 | off_offset = off % bed->maxpagesize; | |
5387 | if (vma_offset < off_offset) | |
5388 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5389 | else | |
5390 | adjustment = vma_offset - off_offset; | |
08a40648 | 5391 | |
de194d85 | 5392 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5393 | |
5394 | static file_ptr | |
5395 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5396 | { | |
dc9155b2 NC |
5397 | /* PR binutils/16199: Handle an alignment of zero. */ |
5398 | if (maxpagesize == 0) | |
5399 | maxpagesize = 1; | |
340b6d91 AC |
5400 | return ((vma - off) % maxpagesize); |
5401 | } | |
5402 | ||
6d33f217 L |
5403 | static void |
5404 | print_segment_map (const struct elf_segment_map *m) | |
5405 | { | |
5406 | unsigned int j; | |
5407 | const char *pt = get_segment_type (m->p_type); | |
5408 | char buf[32]; | |
5409 | ||
5410 | if (pt == NULL) | |
5411 | { | |
5412 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5413 | sprintf (buf, "LOPROC+%7.7x", | |
5414 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5415 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5416 | sprintf (buf, "LOOS+%7.7x", | |
5417 | (unsigned int) (m->p_type - PT_LOOS)); | |
5418 | else | |
5419 | snprintf (buf, sizeof (buf), "%8.8x", | |
5420 | (unsigned int) m->p_type); | |
5421 | pt = buf; | |
5422 | } | |
4a97a0e5 | 5423 | fflush (stdout); |
6d33f217 L |
5424 | fprintf (stderr, "%s:", pt); |
5425 | for (j = 0; j < m->count; j++) | |
5426 | fprintf (stderr, " %s", m->sections [j]->name); | |
5427 | putc ('\n',stderr); | |
4a97a0e5 | 5428 | fflush (stderr); |
6d33f217 L |
5429 | } |
5430 | ||
0a1b45a2 | 5431 | static bool |
32812159 AM |
5432 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) |
5433 | { | |
5434 | void *buf; | |
0a1b45a2 | 5435 | bool ret; |
32812159 AM |
5436 | |
5437 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
0a1b45a2 | 5438 | return false; |
32812159 AM |
5439 | buf = bfd_zmalloc (len); |
5440 | if (buf == NULL) | |
0a1b45a2 | 5441 | return false; |
32812159 AM |
5442 | ret = bfd_bwrite (buf, len, abfd) == len; |
5443 | free (buf); | |
5444 | return ret; | |
5445 | } | |
5446 | ||
252b5132 RH |
5447 | /* Assign file positions to the sections based on the mapping from |
5448 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5449 | the file header. */ |
252b5132 | 5450 | |
0a1b45a2 | 5451 | static bool |
f3520d2f AM |
5452 | assign_file_positions_for_load_sections (bfd *abfd, |
5453 | struct bfd_link_info *link_info) | |
252b5132 RH |
5454 | { |
5455 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5456 | struct elf_segment_map *m; |
30fe1832 | 5457 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5458 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5459 | Elf_Internal_Phdr *p; |
502794d4 | 5460 | file_ptr off; /* Octets. */ |
3f570048 | 5461 | bfd_size_type maxpagesize; |
30fe1832 | 5462 | unsigned int alloc, actual; |
0920dee7 | 5463 | unsigned int i, j; |
30fe1832 | 5464 | struct elf_segment_map **sorted_seg_map; |
502794d4 | 5465 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 5466 | |
e36284ab | 5467 | if (link_info == NULL |
e2cbf4df | 5468 | && !_bfd_elf_map_sections_to_segments (abfd, link_info, NULL)) |
0a1b45a2 | 5469 | return false; |
252b5132 | 5470 | |
8ded5a0f | 5471 | alloc = 0; |
12bd6957 | 5472 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5473 | m->idx = alloc++; |
252b5132 | 5474 | |
82f2dbf7 NC |
5475 | if (alloc) |
5476 | { | |
5477 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5478 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5479 | } | |
5480 | else | |
5481 | { | |
5482 | /* PR binutils/12467. */ | |
5483 | elf_elfheader (abfd)->e_phoff = 0; | |
5484 | elf_elfheader (abfd)->e_phentsize = 0; | |
5485 | } | |
d324f6d6 | 5486 | |
8ded5a0f | 5487 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5488 | |
12bd6957 | 5489 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5490 | { |
5491 | actual = alloc; | |
5492 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5493 | } | |
8ded5a0f | 5494 | else |
30fe1832 AM |
5495 | { |
5496 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5497 | BFD_ASSERT (elf_program_header_size (abfd) | |
5498 | == actual * bed->s->sizeof_phdr); | |
5499 | BFD_ASSERT (actual >= alloc); | |
5500 | } | |
252b5132 RH |
5501 | |
5502 | if (alloc == 0) | |
f3520d2f | 5503 | { |
12bd6957 | 5504 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
0a1b45a2 | 5505 | return true; |
f3520d2f | 5506 | } |
252b5132 | 5507 | |
12bd6957 | 5508 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5509 | see assign_file_positions_except_relocs, so make sure we have |
5510 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5511 | The variable alloc contains the computed need, while |
5512 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5513 | layout. |
5514 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5515 | where the layout is forced to according to a larger size in the | |
5516 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5517 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5518 | + alloc * sizeof (*sorted_seg_map))); | |
5519 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5520 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5521 | if (phdrs == NULL) |
0a1b45a2 | 5522 | return false; |
252b5132 | 5523 | |
30fe1832 | 5524 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5525 | { |
30fe1832 | 5526 | sorted_seg_map[j] = m; |
252b5132 | 5527 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5528 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5529 | not be done to the PT_NOTE section of a corefile, which may |
5530 | contain several pseudo-sections artificially created by bfd. | |
5531 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5532 | if (m->count > 1 |
5533 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5534 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5535 | { |
5536 | for (i = 0; i < m->count; i++) | |
5537 | m->sections[i]->target_index = i; | |
5538 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5539 | elf_sort_sections); | |
5540 | } | |
30fe1832 AM |
5541 | } |
5542 | if (alloc > 1) | |
5543 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5544 | elf_sort_segments); | |
5545 | ||
5546 | maxpagesize = 1; | |
5547 | if ((abfd->flags & D_PAGED) != 0) | |
c410035d AM |
5548 | { |
5549 | if (link_info != NULL) | |
5550 | maxpagesize = link_info->maxpagesize; | |
5551 | else | |
5552 | maxpagesize = bed->maxpagesize; | |
5553 | } | |
30fe1832 AM |
5554 | |
5555 | /* Sections must map to file offsets past the ELF file header. */ | |
5556 | off = bed->s->sizeof_ehdr; | |
5557 | /* And if one of the PT_LOAD headers doesn't include the program | |
5558 | headers then we'll be mapping program headers in the usual | |
5559 | position after the ELF file header. */ | |
5560 | phdr_load_seg = NULL; | |
5561 | for (j = 0; j < alloc; j++) | |
5562 | { | |
5563 | m = sorted_seg_map[j]; | |
5564 | if (m->p_type != PT_LOAD) | |
5565 | break; | |
5566 | if (m->includes_phdrs) | |
5567 | { | |
5568 | phdr_load_seg = m; | |
5569 | break; | |
5570 | } | |
5571 | } | |
5572 | if (phdr_load_seg == NULL) | |
5573 | off += actual * bed->s->sizeof_phdr; | |
5574 | ||
5575 | for (j = 0; j < alloc; j++) | |
5576 | { | |
5577 | asection **secpp; | |
502794d4 | 5578 | bfd_vma off_adjust; /* Octets. */ |
0a1b45a2 | 5579 | bool no_contents; |
59f21454 L |
5580 | bfd_size_type p_align; |
5581 | bool p_align_p; | |
252b5132 | 5582 | |
b301b248 AM |
5583 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5584 | number of sections with contents contributing to both p_filesz | |
5585 | and p_memsz, followed by a number of sections with no contents | |
5586 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5587 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5588 | m = sorted_seg_map[j]; |
5589 | p = phdrs + m->idx; | |
252b5132 | 5590 | p->p_type = m->p_type; |
28a7f3e7 | 5591 | p->p_flags = m->p_flags; |
59f21454 L |
5592 | p_align = bed->p_align; |
5593 | p_align_p = false; | |
252b5132 | 5594 | |
3f570048 | 5595 | if (m->count == 0) |
502794d4 | 5596 | p->p_vaddr = m->p_vaddr_offset * opb; |
3f570048 | 5597 | else |
502794d4 | 5598 | p->p_vaddr = (m->sections[0]->vma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5599 | |
5600 | if (m->p_paddr_valid) | |
5601 | p->p_paddr = m->p_paddr; | |
5602 | else if (m->count == 0) | |
5603 | p->p_paddr = 0; | |
5604 | else | |
502794d4 | 5605 | p->p_paddr = (m->sections[0]->lma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5606 | |
5607 | if (p->p_type == PT_LOAD | |
5608 | && (abfd->flags & D_PAGED) != 0) | |
5609 | { | |
5610 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5611 | the maximum page size. When copying an executable with | |
5612 | objcopy, we set m->p_align from the input file. Use this | |
5613 | value for maxpagesize rather than bed->maxpagesize, which | |
5614 | may be different. Note that we use maxpagesize for PT_TLS | |
5615 | segment alignment later in this function, so we are relying | |
5616 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5617 | segment. */ | |
5618 | if (m->p_align_valid) | |
5619 | maxpagesize = m->p_align; | |
74e315db L |
5620 | else if (p_align != 0 |
5621 | && (link_info == NULL | |
5622 | || !link_info->maxpagesize_is_set)) | |
5623 | /* Set p_align to the default p_align value while laying | |
5624 | out segments aligning to the maximum page size or the | |
5625 | largest section alignment. The run-time loader can | |
5626 | align segments to the default p_align value or the | |
5627 | maximum page size, depending on system page size. */ | |
5628 | p_align_p = true; | |
3f570048 AM |
5629 | |
5630 | p->p_align = maxpagesize; | |
5631 | } | |
3271a814 NS |
5632 | else if (m->p_align_valid) |
5633 | p->p_align = m->p_align; | |
e970b90a DJ |
5634 | else if (m->count == 0) |
5635 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5636 | |
5637 | if (m == phdr_load_seg) | |
5638 | { | |
5639 | if (!m->includes_filehdr) | |
5640 | p->p_offset = off; | |
5641 | off += actual * bed->s->sizeof_phdr; | |
5642 | } | |
3f570048 | 5643 | |
0a1b45a2 | 5644 | no_contents = false; |
bf988460 | 5645 | off_adjust = 0; |
252b5132 | 5646 | if (p->p_type == PT_LOAD |
b301b248 | 5647 | && m->count > 0) |
252b5132 | 5648 | { |
66631823 | 5649 | bfd_size_type align; /* Bytes. */ |
a49e53ed | 5650 | unsigned int align_power = 0; |
b301b248 | 5651 | |
3271a814 NS |
5652 | if (m->p_align_valid) |
5653 | align = p->p_align; | |
5654 | else | |
252b5132 | 5655 | { |
3271a814 NS |
5656 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5657 | { | |
5658 | unsigned int secalign; | |
08a40648 | 5659 | |
fd361982 | 5660 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5661 | if (secalign > align_power) |
5662 | align_power = secalign; | |
5663 | } | |
5664 | align = (bfd_size_type) 1 << align_power; | |
5665 | if (align < maxpagesize) | |
74e315db L |
5666 | { |
5667 | /* If a section requires alignment higher than the | |
5668 | default p_align value, don't set p_align to the | |
5669 | default p_align value. */ | |
5670 | if (align > p_align) | |
5671 | p_align_p = false; | |
5672 | align = maxpagesize; | |
5673 | } | |
5674 | else | |
5675 | { | |
5676 | /* If a section requires alignment higher than the | |
5677 | maximum page size, set p_align to the section | |
5678 | alignment. */ | |
5679 | p_align_p = true; | |
5680 | p_align = align; | |
5681 | } | |
b301b248 | 5682 | } |
252b5132 | 5683 | |
02bf8d82 AM |
5684 | for (i = 0; i < m->count; i++) |
5685 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5686 | /* If we aren't making room for this section, then | |
5687 | it must be SHT_NOBITS regardless of what we've | |
5688 | set via struct bfd_elf_special_section. */ | |
5689 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5690 | ||
bf988460 | 5691 | /* Find out whether this segment contains any loadable |
aea274d3 | 5692 | sections. */ |
0a1b45a2 | 5693 | no_contents = true; |
aea274d3 AM |
5694 | for (i = 0; i < m->count; i++) |
5695 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5696 | { | |
0a1b45a2 | 5697 | no_contents = false; |
aea274d3 AM |
5698 | break; |
5699 | } | |
bf988460 | 5700 | |
66631823 | 5701 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align * opb); |
a8c75b76 AM |
5702 | |
5703 | /* Broken hardware and/or kernel require that files do not | |
5704 | map the same page with different permissions on some hppa | |
5705 | processors. */ | |
30fe1832 AM |
5706 | if (j != 0 |
5707 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5708 | && bed->no_page_alias |
5709 | && (off & (maxpagesize - 1)) != 0 | |
502794d4 CE |
5710 | && ((off & -maxpagesize) |
5711 | == ((off + off_adjust) & -maxpagesize))) | |
a8c75b76 | 5712 | off_adjust += maxpagesize; |
bf988460 AM |
5713 | off += off_adjust; |
5714 | if (no_contents) | |
5715 | { | |
5716 | /* We shouldn't need to align the segment on disk since | |
5717 | the segment doesn't need file space, but the gABI | |
5718 | arguably requires the alignment and glibc ld.so | |
5719 | checks it. So to comply with the alignment | |
5720 | requirement but not waste file space, we adjust | |
5721 | p_offset for just this segment. (OFF_ADJUST is | |
5722 | subtracted from OFF later.) This may put p_offset | |
5723 | past the end of file, but that shouldn't matter. */ | |
5724 | } | |
5725 | else | |
5726 | off_adjust = 0; | |
252b5132 | 5727 | } |
b1a6d0b1 NC |
5728 | /* Make sure the .dynamic section is the first section in the |
5729 | PT_DYNAMIC segment. */ | |
5730 | else if (p->p_type == PT_DYNAMIC | |
5731 | && m->count > 1 | |
5732 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5733 | { | |
5734 | _bfd_error_handler | |
871b3ab2 | 5735 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5736 | " is not the .dynamic section"), |
b301b248 | 5737 | abfd); |
b1a6d0b1 | 5738 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 5739 | return false; |
b1a6d0b1 | 5740 | } |
3f001e84 JK |
5741 | /* Set the note section type to SHT_NOTE. */ |
5742 | else if (p->p_type == PT_NOTE) | |
5743 | for (i = 0; i < m->count; i++) | |
5744 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5745 | |
252b5132 RH |
5746 | if (m->includes_filehdr) |
5747 | { | |
bf988460 | 5748 | if (!m->p_flags_valid) |
252b5132 | 5749 | p->p_flags |= PF_R; |
252b5132 RH |
5750 | p->p_filesz = bed->s->sizeof_ehdr; |
5751 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5752 | if (p->p_type == PT_LOAD) |
252b5132 | 5753 | { |
30fe1832 | 5754 | if (m->count > 0) |
252b5132 | 5755 | { |
30fe1832 AM |
5756 | if (p->p_vaddr < (bfd_vma) off |
5757 | || (!m->p_paddr_valid | |
5758 | && p->p_paddr < (bfd_vma) off)) | |
5759 | { | |
5760 | _bfd_error_handler | |
5761 | (_("%pB: not enough room for program headers," | |
5762 | " try linking with -N"), | |
5763 | abfd); | |
5764 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 5765 | return false; |
30fe1832 AM |
5766 | } |
5767 | p->p_vaddr -= off; | |
5768 | if (!m->p_paddr_valid) | |
5769 | p->p_paddr -= off; | |
252b5132 | 5770 | } |
30fe1832 AM |
5771 | } |
5772 | else if (sorted_seg_map[0]->includes_filehdr) | |
5773 | { | |
5774 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5775 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5776 | if (!m->p_paddr_valid) |
30fe1832 | 5777 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5778 | } |
252b5132 RH |
5779 | } |
5780 | ||
5781 | if (m->includes_phdrs) | |
5782 | { | |
bf988460 | 5783 | if (!m->p_flags_valid) |
252b5132 | 5784 | p->p_flags |= PF_R; |
30fe1832 AM |
5785 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5786 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5787 | if (!m->includes_filehdr) |
252b5132 | 5788 | { |
30fe1832 | 5789 | if (p->p_type == PT_LOAD) |
252b5132 | 5790 | { |
30fe1832 AM |
5791 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5792 | if (m->count > 0) | |
5793 | { | |
5794 | p->p_vaddr -= off - p->p_offset; | |
5795 | if (!m->p_paddr_valid) | |
5796 | p->p_paddr -= off - p->p_offset; | |
5797 | } | |
5798 | } | |
5799 | else if (phdr_load_seg != NULL) | |
5800 | { | |
5801 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
502794d4 | 5802 | bfd_vma phdr_off = 0; /* Octets. */ |
30fe1832 AM |
5803 | if (phdr_load_seg->includes_filehdr) |
5804 | phdr_off = bed->s->sizeof_ehdr; | |
5805 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5806 | if (!m->p_paddr_valid) |
30fe1832 AM |
5807 | p->p_paddr = phdr->p_paddr + phdr_off; |
5808 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5809 | } |
30fe1832 AM |
5810 | else |
5811 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5812 | } |
252b5132 RH |
5813 | } |
5814 | ||
5815 | if (p->p_type == PT_LOAD | |
5816 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5817 | { | |
bf988460 | 5818 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5819 | { |
5820 | p->p_offset = off; | |
5821 | if (no_contents) | |
67641dd3 AM |
5822 | { |
5823 | /* Put meaningless p_offset for PT_LOAD segments | |
5824 | without file contents somewhere within the first | |
5825 | page, in an attempt to not point past EOF. */ | |
5826 | bfd_size_type align = maxpagesize; | |
5827 | if (align < p->p_align) | |
5828 | align = p->p_align; | |
5829 | if (align < 1) | |
5830 | align = 1; | |
5831 | p->p_offset = off % align; | |
5832 | } | |
0bc3450e | 5833 | } |
252b5132 RH |
5834 | else |
5835 | { | |
502794d4 | 5836 | file_ptr adjust; /* Octets. */ |
252b5132 RH |
5837 | |
5838 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5839 | if (!no_contents) |
5840 | p->p_filesz += adjust; | |
252b5132 RH |
5841 | p->p_memsz += adjust; |
5842 | } | |
5843 | } | |
5844 | ||
1ea63fd2 AM |
5845 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5846 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5847 | core files, for sections in PT_NOTE segments. | |
5848 | assign_file_positions_for_non_load_sections will set filepos | |
5849 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5850 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5851 | { | |
5852 | asection *sec; | |
252b5132 | 5853 | bfd_size_type align; |
627b32bc | 5854 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5855 | |
5856 | sec = *secpp; | |
02bf8d82 | 5857 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5858 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5859 | |
88967714 AM |
5860 | if ((p->p_type == PT_LOAD |
5861 | || p->p_type == PT_TLS) | |
5862 | && (this_hdr->sh_type != SHT_NOBITS | |
5863 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5864 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5865 | || p->p_type == PT_TLS)))) | |
252b5132 | 5866 | { |
11c6a7c6 AM |
5867 | bfd_vma p_start = p->p_paddr; /* Octets. */ |
5868 | bfd_vma p_end = p_start + p->p_memsz; /* Octets. */ | |
5869 | bfd_vma s_start = sec->lma * opb; /* Octets. */ | |
5870 | bfd_vma adjust = s_start - p_end; /* Octets. */ | |
252b5132 | 5871 | |
a2d1e028 L |
5872 | if (adjust != 0 |
5873 | && (s_start < p_end | |
5874 | || p_end < p_start)) | |
252b5132 | 5875 | { |
4eca0228 | 5876 | _bfd_error_handler |
695344c0 | 5877 | /* xgettext:c-format */ |
11c6a7c6 AM |
5878 | (_("%pB: section %pA lma %#" PRIx64 |
5879 | " adjusted to %#" PRIx64), | |
502794d4 CE |
5880 | abfd, sec, (uint64_t) s_start / opb, |
5881 | (uint64_t) p_end / opb); | |
88967714 | 5882 | adjust = 0; |
502794d4 | 5883 | sec->lma = p_end / opb; |
1cfb7d1e | 5884 | } |
3ac9b6c9 | 5885 | p->p_memsz += adjust; |
1cfb7d1e | 5886 | |
d16e3d2e | 5887 | if (p->p_type == PT_LOAD) |
88967714 | 5888 | { |
d16e3d2e | 5889 | if (this_hdr->sh_type != SHT_NOBITS) |
32812159 | 5890 | { |
d16e3d2e | 5891 | off_adjust = 0; |
30fe1832 AM |
5892 | if (p->p_filesz + adjust < p->p_memsz) |
5893 | { | |
5894 | /* We have a PROGBITS section following NOBITS ones. | |
5895 | Allocate file space for the NOBITS section(s) and | |
5896 | zero it. */ | |
5897 | adjust = p->p_memsz - p->p_filesz; | |
5898 | if (!write_zeros (abfd, off, adjust)) | |
0a1b45a2 | 5899 | return false; |
30fe1832 | 5900 | } |
d16e3d2e AM |
5901 | } |
5902 | /* We only adjust sh_offset in SHT_NOBITS sections | |
5903 | as would seem proper for their address when the | |
5904 | section is first in the segment. sh_offset | |
5905 | doesn't really have any significance for | |
5906 | SHT_NOBITS anyway, apart from a notional position | |
5907 | relative to other sections. Historically we | |
5908 | didn't bother with adjusting sh_offset and some | |
5909 | programs depend on it not being adjusted. See | |
5910 | pr12921 and pr25662. */ | |
5911 | if (this_hdr->sh_type != SHT_NOBITS || i == 0) | |
5912 | { | |
30fe1832 | 5913 | off += adjust; |
d16e3d2e AM |
5914 | if (this_hdr->sh_type == SHT_NOBITS) |
5915 | off_adjust += adjust; | |
32812159 | 5916 | } |
252b5132 | 5917 | } |
d16e3d2e AM |
5918 | if (this_hdr->sh_type != SHT_NOBITS) |
5919 | p->p_filesz += adjust; | |
252b5132 RH |
5920 | } |
5921 | ||
5922 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5923 | { | |
b301b248 AM |
5924 | /* The section at i == 0 is the one that actually contains |
5925 | everything. */ | |
4a938328 MS |
5926 | if (i == 0) |
5927 | { | |
627b32bc | 5928 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5929 | off += this_hdr->sh_size; |
5930 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5931 | p->p_memsz = 0; |
5932 | p->p_align = 1; | |
252b5132 | 5933 | } |
4a938328 | 5934 | else |
252b5132 | 5935 | { |
b301b248 | 5936 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5937 | sec->filepos = 0; |
eea6121a | 5938 | sec->size = 0; |
b301b248 AM |
5939 | sec->flags = 0; |
5940 | continue; | |
252b5132 | 5941 | } |
252b5132 RH |
5942 | } |
5943 | else | |
5944 | { | |
1e951488 | 5945 | if (p->p_type == PT_LOAD) |
b301b248 | 5946 | { |
1e951488 AM |
5947 | this_hdr->sh_offset = sec->filepos = off; |
5948 | if (this_hdr->sh_type != SHT_NOBITS) | |
5949 | off += this_hdr->sh_size; | |
5950 | } | |
5951 | else if (this_hdr->sh_type == SHT_NOBITS | |
5952 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5953 | && this_hdr->sh_offset == 0) | |
5954 | { | |
5955 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5956 | (See _bfd_elf_map_sections_to_segments "Create a | |
5957 | final PT_LOAD".) Set sh_offset to the value it | |
5958 | would have if we had created a zero p_filesz and | |
5959 | p_memsz PT_LOAD header for the section. This | |
5960 | also makes the PT_TLS header have the same | |
5961 | p_offset value. */ | |
5962 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5963 | off, align); | |
5964 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5965 | } |
252b5132 | 5966 | |
02bf8d82 | 5967 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5968 | { |
6a3cd2b4 | 5969 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5970 | /* A load section without SHF_ALLOC is something like |
5971 | a note section in a PT_NOTE segment. These take | |
5972 | file space but are not loaded into memory. */ | |
5973 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5974 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5975 | } |
6a3cd2b4 | 5976 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5977 | { |
6a3cd2b4 AM |
5978 | if (p->p_type == PT_TLS) |
5979 | p->p_memsz += this_hdr->sh_size; | |
5980 | ||
5981 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5982 | normal segments. */ | |
5983 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5984 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5985 | } |
5986 | ||
b10a8ae0 L |
5987 | if (align > p->p_align |
5988 | && !m->p_align_valid | |
5989 | && (p->p_type != PT_LOAD | |
5990 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5991 | p->p_align = align; |
5992 | } | |
5993 | ||
bf988460 | 5994 | if (!m->p_flags_valid) |
252b5132 RH |
5995 | { |
5996 | p->p_flags |= PF_R; | |
02bf8d82 | 5997 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5998 | p->p_flags |= PF_X; |
02bf8d82 | 5999 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
6000 | p->p_flags |= PF_W; |
6001 | } | |
6002 | } | |
43a8475c | 6003 | |
bf988460 | 6004 | off -= off_adjust; |
0920dee7 | 6005 | |
30fe1832 AM |
6006 | /* PR ld/20815 - Check that the program header segment, if |
6007 | present, will be loaded into memory. */ | |
6008 | if (p->p_type == PT_PHDR | |
6009 | && phdr_load_seg == NULL | |
6010 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
6011 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
6012 | { | |
6013 | /* The fix for this error is usually to edit the linker script being | |
6014 | used and set up the program headers manually. Either that or | |
6015 | leave room for the headers at the start of the SECTIONS. */ | |
6016 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
6017 | " by LOAD segment"), | |
6018 | abfd); | |
7b3c2715 | 6019 | if (link_info == NULL) |
0a1b45a2 | 6020 | return false; |
7b3c2715 AM |
6021 | /* Arrange for the linker to exit with an error, deleting |
6022 | the output file unless --noinhibit-exec is given. */ | |
6023 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
6024 | } |
6025 | ||
7c928300 AM |
6026 | /* Check that all sections are in a PT_LOAD segment. |
6027 | Don't check funky gdb generated core files. */ | |
6028 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 | 6029 | { |
0a1b45a2 | 6030 | bool check_vma = true; |
9a83a553 AM |
6031 | |
6032 | for (i = 1; i < m->count; i++) | |
6033 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
6034 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
6035 | ->this_hdr), p) != 0 | |
6036 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
6037 | ->this_hdr), p) != 0) | |
0920dee7 | 6038 | { |
9a83a553 | 6039 | /* Looks like we have overlays packed into the segment. */ |
0a1b45a2 | 6040 | check_vma = false; |
9a83a553 | 6041 | break; |
0920dee7 | 6042 | } |
9a83a553 AM |
6043 | |
6044 | for (i = 0; i < m->count; i++) | |
6045 | { | |
6046 | Elf_Internal_Shdr *this_hdr; | |
6047 | asection *sec; | |
6048 | ||
6049 | sec = m->sections[i]; | |
6050 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
6051 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
6052 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 6053 | { |
4eca0228 | 6054 | _bfd_error_handler |
695344c0 | 6055 | /* xgettext:c-format */ |
871b3ab2 | 6056 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
6057 | abfd, sec, j); |
6058 | print_segment_map (m); | |
6059 | } | |
6060 | } | |
74e315db L |
6061 | |
6062 | if (p_align_p) | |
6063 | p->p_align = p_align; | |
9a83a553 | 6064 | } |
252b5132 RH |
6065 | } |
6066 | ||
12bd6957 | 6067 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
6068 | |
6069 | if (link_info != NULL | |
6070 | && phdr_load_seg != NULL | |
6071 | && phdr_load_seg->includes_filehdr) | |
6072 | { | |
6073 | /* There is a segment that contains both the file headers and the | |
6074 | program headers, so provide a symbol __ehdr_start pointing there. | |
6075 | A program can use this to examine itself robustly. */ | |
6076 | ||
6077 | struct elf_link_hash_entry *hash | |
6078 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
0a1b45a2 | 6079 | false, false, true); |
30fe1832 AM |
6080 | /* If the symbol was referenced and not defined, define it. */ |
6081 | if (hash != NULL | |
6082 | && (hash->root.type == bfd_link_hash_new | |
6083 | || hash->root.type == bfd_link_hash_undefined | |
6084 | || hash->root.type == bfd_link_hash_undefweak | |
6085 | || hash->root.type == bfd_link_hash_common)) | |
6086 | { | |
6087 | asection *s = NULL; | |
66631823 | 6088 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr / opb; |
30fe1832 AM |
6089 | |
6090 | if (phdr_load_seg->count != 0) | |
6091 | /* The segment contains sections, so use the first one. */ | |
6092 | s = phdr_load_seg->sections[0]; | |
6093 | else | |
6094 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6095 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6096 | if (m->p_type == PT_LOAD && m->count != 0) | |
6097 | { | |
6098 | s = m->sections[0]; | |
6099 | break; | |
6100 | } | |
6101 | ||
6102 | if (s != NULL) | |
6103 | { | |
6104 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6105 | hash->root.u.def.section = s; | |
6106 | } | |
6107 | else | |
6108 | { | |
6109 | hash->root.u.def.value = filehdr_vaddr; | |
6110 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6111 | } | |
6112 | ||
6113 | hash->root.type = bfd_link_hash_defined; | |
6114 | hash->def_regular = 1; | |
6115 | hash->non_elf = 0; | |
6116 | } | |
6117 | } | |
6118 | ||
0a1b45a2 | 6119 | return true; |
f3520d2f AM |
6120 | } |
6121 | ||
1faa385f NC |
6122 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6123 | is no defined method for detecting such files, so we have to | |
6124 | use heuristics instead. */ | |
6125 | ||
0a1b45a2 | 6126 | bool |
1faa385f NC |
6127 | is_debuginfo_file (bfd *abfd) |
6128 | { | |
6129 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 6130 | return false; |
1faa385f NC |
6131 | |
6132 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6133 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6134 | Elf_Internal_Shdr **headerp; | |
6135 | ||
6136 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6137 | { | |
6138 | Elf_Internal_Shdr *header = * headerp; | |
6139 | ||
6140 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6141 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6142 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6143 | && header->sh_type != SHT_NOBITS | |
6144 | && header->sh_type != SHT_NOTE) | |
0a1b45a2 | 6145 | return false; |
1faa385f NC |
6146 | } |
6147 | ||
0a1b45a2 | 6148 | return true; |
1faa385f NC |
6149 | } |
6150 | ||
11c6a7c6 AM |
6151 | /* Assign file positions for other sections, except for compressed debug |
6152 | and sections assigned in _bfd_elf_assign_file_positions_for_non_load. */ | |
f3520d2f | 6153 | |
0a1b45a2 | 6154 | static bool |
f3520d2f AM |
6155 | assign_file_positions_for_non_load_sections (bfd *abfd, |
6156 | struct bfd_link_info *link_info) | |
6157 | { | |
6158 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6159 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6160 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6161 | Elf_Internal_Phdr *phdrs; |
6162 | Elf_Internal_Phdr *p; | |
6163 | struct elf_segment_map *m; | |
f3520d2f | 6164 | file_ptr off; |
66631823 | 6165 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
c410035d | 6166 | bfd_vma maxpagesize; |
f3520d2f | 6167 | |
c410035d AM |
6168 | if (link_info != NULL) |
6169 | maxpagesize = link_info->maxpagesize; | |
6170 | else | |
6171 | maxpagesize = bed->maxpagesize; | |
5c182d5f | 6172 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6173 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6174 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6175 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6176 | { |
5c182d5f | 6177 | Elf_Internal_Shdr *hdr; |
1f9b1a84 | 6178 | bfd_vma align; |
5c182d5f AM |
6179 | |
6180 | hdr = *hdrpp; | |
6181 | if (hdr->bfd_section != NULL | |
252e386e AM |
6182 | && (hdr->bfd_section->filepos != 0 |
6183 | || (hdr->sh_type == SHT_NOBITS | |
6184 | && hdr->contents == NULL))) | |
627b32bc | 6185 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6186 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6187 | { | |
1faa385f NC |
6188 | if (hdr->sh_size != 0 |
6189 | /* PR 24717 - debuginfo files are known to be not strictly | |
6190 | compliant with the ELF standard. In particular they often | |
6191 | have .note.gnu.property sections that are outside of any | |
6192 | loadable segment. This is not a problem for such files, | |
6193 | so do not warn about them. */ | |
6194 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6195 | _bfd_error_handler |
695344c0 | 6196 | /* xgettext:c-format */ |
871b3ab2 | 6197 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6198 | abfd, |
6199 | (hdr->bfd_section == NULL | |
6200 | ? "*unknown*" | |
6201 | : hdr->bfd_section->name)); | |
3ba71138 L |
6202 | /* We don't need to page align empty sections. */ |
6203 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
1f9b1a84 | 6204 | align = maxpagesize; |
5c182d5f | 6205 | else |
1f9b1a84 AM |
6206 | align = hdr->sh_addralign & -hdr->sh_addralign; |
6207 | off += vma_page_aligned_bias (hdr->sh_addr, off, align); | |
5c182d5f | 6208 | off = _bfd_elf_assign_file_position_for_section (hdr, off, |
0a1b45a2 | 6209 | false); |
5c182d5f AM |
6210 | } |
6211 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6212 | && hdr->bfd_section == NULL) | |
11c6a7c6 AM |
6213 | /* We don't know the offset of these sections yet: |
6214 | their size has not been decided. */ | |
0ce398f1 | 6215 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6216 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6217 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6218 | && abfd->is_linker_output))) | |
12bd6957 | 6219 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6220 | || (elf_symtab_shndx_list (abfd) != NULL |
6221 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6222 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6223 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6224 | hdr->sh_offset = -1; |
6225 | else | |
0a1b45a2 | 6226 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
5c182d5f | 6227 | } |
30fe1832 | 6228 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6229 | |
252b5132 RH |
6230 | /* Now that we have set the section file positions, we can set up |
6231 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6232 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6233 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6234 | { |
129af99f | 6235 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6236 | { |
66631823 | 6237 | bfd_vma start, end; /* Bytes. */ |
0a1b45a2 | 6238 | bool ok; |
1ea63fd2 | 6239 | |
129af99f | 6240 | if (link_info != NULL) |
8c37241b | 6241 | { |
129af99f | 6242 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6243 | in link_info. Note that there may be padding between |
6244 | relro_start and the first RELRO section. */ | |
6245 | start = link_info->relro_start; | |
6246 | end = link_info->relro_end; | |
6247 | } | |
6248 | else if (m->count != 0) | |
6249 | { | |
6250 | if (!m->p_size_valid) | |
6251 | abort (); | |
6252 | start = m->sections[0]->vma; | |
66631823 | 6253 | end = start + m->p_size / opb; |
f2731e0c AM |
6254 | } |
6255 | else | |
6256 | { | |
6257 | start = 0; | |
6258 | end = 0; | |
6259 | } | |
6260 | ||
0a1b45a2 | 6261 | ok = false; |
f2731e0c AM |
6262 | if (start < end) |
6263 | { | |
6264 | struct elf_segment_map *lm; | |
6265 | const Elf_Internal_Phdr *lp; | |
6266 | unsigned int i; | |
6267 | ||
6268 | /* Find a LOAD segment containing a section in the RELRO | |
6269 | segment. */ | |
12bd6957 | 6270 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6271 | lm != NULL; |
6272 | lm = lm->next, lp++) | |
8c37241b JJ |
6273 | { |
6274 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6275 | && lm->count != 0 |
dbc88fc1 AM |
6276 | && (lm->sections[lm->count - 1]->vma |
6277 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
66631823 | 6278 | ? lm->sections[lm->count - 1]->size / opb |
dbc88fc1 | 6279 | : 0)) > start |
f2731e0c | 6280 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6281 | break; |
6282 | } | |
f2731e0c | 6283 | |
01f7e10c | 6284 | if (lm != NULL) |
129af99f | 6285 | { |
01f7e10c AM |
6286 | /* Find the section starting the RELRO segment. */ |
6287 | for (i = 0; i < lm->count; i++) | |
6288 | { | |
6289 | asection *s = lm->sections[i]; | |
6290 | if (s->vma >= start | |
6291 | && s->vma < end | |
6292 | && s->size != 0) | |
6293 | break; | |
6294 | } | |
6295 | ||
6296 | if (i < lm->count) | |
6297 | { | |
502794d4 CE |
6298 | p->p_vaddr = lm->sections[i]->vma * opb; |
6299 | p->p_paddr = lm->sections[i]->lma * opb; | |
01f7e10c | 6300 | p->p_offset = lm->sections[i]->filepos; |
66631823 | 6301 | p->p_memsz = end * opb - p->p_vaddr; |
01f7e10c AM |
6302 | p->p_filesz = p->p_memsz; |
6303 | ||
6304 | /* The RELRO segment typically ends a few bytes | |
6305 | into .got.plt but other layouts are possible. | |
6306 | In cases where the end does not match any | |
6307 | loaded section (for instance is in file | |
6308 | padding), trim p_filesz back to correspond to | |
6309 | the end of loaded section contents. */ | |
6310 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6311 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6312 | ||
6313 | /* Preserve the alignment and flags if they are | |
6314 | valid. The gold linker generates RW/4 for | |
6315 | the PT_GNU_RELRO section. It is better for | |
6316 | objcopy/strip to honor these attributes | |
6317 | otherwise gdb will choke when using separate | |
6318 | debug files. */ | |
6319 | if (!m->p_align_valid) | |
6320 | p->p_align = 1; | |
6321 | if (!m->p_flags_valid) | |
6322 | p->p_flags = PF_R; | |
0a1b45a2 | 6323 | ok = true; |
01f7e10c | 6324 | } |
129af99f | 6325 | } |
b84a33b5 | 6326 | } |
ee9e412f | 6327 | |
01f7e10c | 6328 | if (!ok) |
ee9e412f NC |
6329 | { |
6330 | if (link_info != NULL) | |
6331 | _bfd_error_handler | |
11c6a7c6 AM |
6332 | (_("%pB: warning: unable to allocate any sections" |
6333 | " to PT_GNU_RELRO segment"), | |
ee9e412f NC |
6334 | abfd); |
6335 | memset (p, 0, sizeof *p); | |
6336 | } | |
129af99f | 6337 | } |
04c3a755 NS |
6338 | else if (p->p_type == PT_GNU_STACK) |
6339 | { | |
6340 | if (m->p_size_valid) | |
6341 | p->p_memsz = m->p_size; | |
6342 | } | |
129af99f AS |
6343 | else if (m->count != 0) |
6344 | { | |
e06efbf1 | 6345 | unsigned int i; |
1a9ccd70 | 6346 | |
129af99f AS |
6347 | if (p->p_type != PT_LOAD |
6348 | && (p->p_type != PT_NOTE | |
6349 | || bfd_get_format (abfd) != bfd_core)) | |
6350 | { | |
1a9ccd70 NC |
6351 | /* A user specified segment layout may include a PHDR |
6352 | segment that overlaps with a LOAD segment... */ | |
6353 | if (p->p_type == PT_PHDR) | |
6354 | { | |
6355 | m->count = 0; | |
6356 | continue; | |
6357 | } | |
6358 | ||
c86934ce NC |
6359 | if (m->includes_filehdr || m->includes_phdrs) |
6360 | { | |
b1fa9dd6 | 6361 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6362 | _bfd_error_handler |
871b3ab2 | 6363 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6364 | "and/or program header"), |
6365 | abfd, (int) (p - phdrs)); | |
0a1b45a2 | 6366 | return false; |
c86934ce | 6367 | } |
129af99f | 6368 | |
86b2281f | 6369 | p->p_filesz = 0; |
129af99f | 6370 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6371 | for (i = m->count; i-- != 0;) |
6372 | { | |
6373 | asection *sect = m->sections[i]; | |
6374 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6375 | if (hdr->sh_type != SHT_NOBITS) | |
6376 | { | |
aebb3d54 | 6377 | p->p_filesz = sect->filepos - p->p_offset + hdr->sh_size; |
9917b559 L |
6378 | /* NB: p_memsz of the loadable PT_NOTE segment |
6379 | should be the same as p_filesz. */ | |
6380 | if (p->p_type == PT_NOTE | |
6381 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
6382 | p->p_memsz = p->p_filesz; | |
86b2281f AM |
6383 | break; |
6384 | } | |
6385 | } | |
129af99f AS |
6386 | } |
6387 | } | |
252b5132 RH |
6388 | } |
6389 | ||
0a1b45a2 | 6390 | return true; |
252b5132 RH |
6391 | } |
6392 | ||
6a40cf0c NC |
6393 | static elf_section_list * |
6394 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6395 | { | |
6396 | for (;list != NULL; list = list->next) | |
6397 | if (list->ndx == i) | |
6398 | break; | |
6399 | return list; | |
6400 | } | |
6401 | ||
252b5132 RH |
6402 | /* Work out the file positions of all the sections. This is called by |
6403 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6404 | VMAs must be known before this is called. | |
6405 | ||
e0638f70 | 6406 | Reloc sections come in two flavours: Those processed specially as |
11c6a7c6 AM |
6407 | "side-channel" data attached to a section to which they apply, and |
6408 | those that bfd doesn't process as relocations. The latter sort are | |
6409 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
6410 | consider the former sort here, unless they form part of the loadable | |
6411 | image. Reloc sections not assigned here (and compressed debugging | |
6412 | sections and CTF sections which nothing else in the file can rely | |
6413 | upon) will be handled later by assign_file_positions_for_relocs. | |
252b5132 RH |
6414 | |
6415 | We also don't set the positions of the .symtab and .strtab here. */ | |
6416 | ||
0a1b45a2 | 6417 | static bool |
c84fca4d AO |
6418 | assign_file_positions_except_relocs (bfd *abfd, |
6419 | struct bfd_link_info *link_info) | |
252b5132 | 6420 | { |
5c182d5f AM |
6421 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6422 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6423 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6424 | unsigned int alloc; |
252b5132 RH |
6425 | |
6426 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6427 | && bfd_get_format (abfd) != bfd_core) | |
6428 | { | |
5c182d5f AM |
6429 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6430 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6431 | Elf_Internal_Shdr **hdrpp; |
6432 | unsigned int i; | |
a485e98e | 6433 | file_ptr off; |
252b5132 RH |
6434 | |
6435 | /* Start after the ELF header. */ | |
6436 | off = i_ehdrp->e_ehsize; | |
6437 | ||
6438 | /* We are not creating an executable, which means that we are | |
6439 | not creating a program header, and that the actual order of | |
6440 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6441 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6442 | { |
6443 | Elf_Internal_Shdr *hdr; | |
6444 | ||
6445 | hdr = *hdrpp; | |
e0638f70 AM |
6446 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6447 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6448 | /* Do not assign offsets for these sections yet: we don't know |
6449 | their sizes. */ | |
0ce398f1 | 6450 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6451 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6452 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6453 | && abfd->is_linker_output))) | |
12bd6957 | 6454 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6455 | || (elf_symtab_shndx_list (abfd) != NULL |
6456 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6457 | || i == elf_strtab_sec (abfd) |
6458 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6459 | { |
6460 | hdr->sh_offset = -1; | |
252b5132 | 6461 | } |
9ad5cbcf | 6462 | else |
0a1b45a2 | 6463 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 6464 | } |
a485e98e AM |
6465 | |
6466 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6467 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6468 | } |
6469 | else | |
6470 | { | |
252b5132 | 6471 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6472 | assignment of sections to segments. */ |
f3520d2f | 6473 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
0a1b45a2 | 6474 | return false; |
f3520d2f AM |
6475 | |
6476 | /* And for non-load sections. */ | |
6477 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
0a1b45a2 | 6478 | return false; |
6d6c25c8 | 6479 | } |
f3520d2f | 6480 | |
6d6c25c8 | 6481 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
0a1b45a2 | 6482 | return false; |
1a9ccd70 | 6483 | |
6d6c25c8 AM |
6484 | /* Write out the program headers. */ |
6485 | alloc = i_ehdrp->e_phnum; | |
6486 | if (alloc != 0) | |
6487 | { | |
ba951afb NC |
6488 | if (link_info != NULL && ! link_info->no_warn_rwx_segments) |
6489 | { | |
11c6a7c6 AM |
6490 | /* Memory resident segments with non-zero size and RWX |
6491 | permissions are a security risk, so we generate a warning | |
6492 | here if we are creating any. */ | |
ba951afb NC |
6493 | unsigned int i; |
6494 | ||
6495 | for (i = 0; i < alloc; i++) | |
6496 | { | |
6497 | const Elf_Internal_Phdr * phdr = tdata->phdr + i; | |
6498 | ||
6499 | if (phdr->p_memsz == 0) | |
6500 | continue; | |
6501 | ||
6502 | if (phdr->p_type == PT_TLS && (phdr->p_flags & PF_X)) | |
11c6a7c6 AM |
6503 | _bfd_error_handler (_("warning: %pB has a TLS segment" |
6504 | " with execute permission"), | |
ba951afb NC |
6505 | abfd); |
6506 | else if (phdr->p_type == PT_LOAD | |
11c6a7c6 AM |
6507 | && ((phdr->p_flags & (PF_R | PF_W | PF_X)) |
6508 | == (PF_R | PF_W | PF_X))) | |
6509 | _bfd_error_handler (_("warning: %pB has a LOAD segment" | |
6510 | " with RWX permissions"), | |
ba951afb NC |
6511 | abfd); |
6512 | } | |
6513 | } | |
11c6a7c6 | 6514 | |
30fe1832 | 6515 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 | 6516 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
0a1b45a2 | 6517 | return false; |
252b5132 RH |
6518 | } |
6519 | ||
0a1b45a2 | 6520 | return true; |
252b5132 RH |
6521 | } |
6522 | ||
0a1b45a2 | 6523 | bool |
ed7e9d0b AM |
6524 | _bfd_elf_init_file_header (bfd *abfd, |
6525 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6526 | { |
3d540e93 | 6527 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6528 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6529 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6530 | |
6531 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6532 | |
2b0f7ef9 | 6533 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6534 | if (shstrtab == NULL) |
0a1b45a2 | 6535 | return false; |
252b5132 RH |
6536 | |
6537 | elf_shstrtab (abfd) = shstrtab; | |
6538 | ||
6539 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6540 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6541 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6542 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6543 | ||
6544 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6545 | i_ehdrp->e_ident[EI_DATA] = | |
6546 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6547 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6548 | ||
252b5132 RH |
6549 | if ((abfd->flags & DYNAMIC) != 0) |
6550 | i_ehdrp->e_type = ET_DYN; | |
6551 | else if ((abfd->flags & EXEC_P) != 0) | |
6552 | i_ehdrp->e_type = ET_EXEC; | |
6553 | else if (bfd_get_format (abfd) == bfd_core) | |
6554 | i_ehdrp->e_type = ET_CORE; | |
6555 | else | |
6556 | i_ehdrp->e_type = ET_REL; | |
6557 | ||
6558 | switch (bfd_get_arch (abfd)) | |
6559 | { | |
6560 | case bfd_arch_unknown: | |
6561 | i_ehdrp->e_machine = EM_NONE; | |
6562 | break; | |
aa4f99bb AO |
6563 | |
6564 | /* There used to be a long list of cases here, each one setting | |
6565 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6566 | in the corresponding bfd definition. To avoid duplication, | |
6567 | the switch was removed. Machines that need special handling | |
6568 | can generally do it in elf_backend_final_write_processing(), | |
6569 | unless they need the information earlier than the final write. | |
6570 | Such need can generally be supplied by replacing the tests for | |
6571 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6572 | default: |
9c5bfbb7 AM |
6573 | i_ehdrp->e_machine = bed->elf_machine_code; |
6574 | } | |
aa4f99bb | 6575 | |
252b5132 RH |
6576 | i_ehdrp->e_version = bed->s->ev_current; |
6577 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6578 | ||
c044fabd | 6579 | /* No program header, for now. */ |
252b5132 RH |
6580 | i_ehdrp->e_phoff = 0; |
6581 | i_ehdrp->e_phentsize = 0; | |
6582 | i_ehdrp->e_phnum = 0; | |
6583 | ||
c044fabd | 6584 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6585 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6586 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6587 | ||
252b5132 | 6588 | elf_tdata (abfd)->symtab_hdr.sh_name = |
0a1b45a2 | 6589 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", false); |
252b5132 | 6590 | elf_tdata (abfd)->strtab_hdr.sh_name = |
0a1b45a2 | 6591 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", false); |
252b5132 | 6592 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
0a1b45a2 | 6593 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", false); |
252b5132 | 6594 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6595 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6596 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 6597 | return false; |
252b5132 | 6598 | |
0a1b45a2 | 6599 | return true; |
252b5132 RH |
6600 | } |
6601 | ||
6d6c25c8 AM |
6602 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6603 | ||
6604 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6605 | ascending order, as per the ELF spec. But this breaks some programs, | |
6606 | including the Linux kernel. But really either the spec should be | |
6607 | changed or the programs updated. */ | |
6608 | ||
0a1b45a2 | 6609 | bool |
6d6c25c8 AM |
6610 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) |
6611 | { | |
6612 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6613 | { | |
6614 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6615 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6616 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6617 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6618 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6619 | ||
6620 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6621 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6622 | for (; segment < end_segment; segment++) | |
6623 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6624 | p_vaddr = segment->p_vaddr; | |
6625 | ||
6626 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6627 | segments is non-zero. */ | |
6628 | if (p_vaddr) | |
6629 | i_ehdrp->e_type = ET_EXEC; | |
6630 | } | |
0a1b45a2 | 6631 | return true; |
6d6c25c8 AM |
6632 | } |
6633 | ||
252b5132 | 6634 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6635 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6636 | |
0a1b45a2 | 6637 | static bool |
0ce398f1 | 6638 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) |
252b5132 RH |
6639 | { |
6640 | file_ptr off; | |
e06efbf1 | 6641 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6642 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6643 | Elf_Internal_Ehdr *i_ehdrp; |
6644 | const struct elf_backend_data *bed; | |
252b5132 | 6645 | |
12bd6957 | 6646 | off = elf_next_file_pos (abfd); |
252b5132 | 6647 | |
e06efbf1 L |
6648 | shdrpp = elf_elfsections (abfd); |
6649 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6650 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6651 | { |
252b5132 | 6652 | shdrp = *shdrpp; |
0ce398f1 L |
6653 | if (shdrp->sh_offset == -1) |
6654 | { | |
3e19fb8f | 6655 | asection *sec = shdrp->bfd_section; |
0a1b45a2 AM |
6656 | bool is_rel = (shdrp->sh_type == SHT_REL |
6657 | || shdrp->sh_type == SHT_RELA); | |
6658 | bool is_ctf = sec && bfd_section_is_ctf (sec); | |
0ce398f1 | 6659 | if (is_rel |
1ff6de03 | 6660 | || is_ctf |
3e19fb8f | 6661 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6662 | { |
1ff6de03 | 6663 | if (!is_rel && !is_ctf) |
0ce398f1 | 6664 | { |
3e19fb8f L |
6665 | const char *name = sec->name; |
6666 | struct bfd_elf_section_data *d; | |
6667 | ||
0ce398f1 | 6668 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6669 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 | 6670 | shdrp->contents)) |
0a1b45a2 | 6671 | return false; |
3e19fb8f L |
6672 | |
6673 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6674 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6675 | { | |
6676 | /* If section is compressed with zlib-gnu, convert | |
6677 | section name from .debug_* to .zdebug_*. */ | |
6678 | char *new_name | |
6679 | = convert_debug_to_zdebug (abfd, name); | |
6680 | if (new_name == NULL) | |
0a1b45a2 | 6681 | return false; |
3e19fb8f L |
6682 | name = new_name; |
6683 | } | |
dd905818 | 6684 | /* Add section name to section name section. */ |
3e19fb8f L |
6685 | if (shdrp->sh_name != (unsigned int) -1) |
6686 | abort (); | |
6687 | shdrp->sh_name | |
6688 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 6689 | name, false); |
3e19fb8f L |
6690 | d = elf_section_data (sec); |
6691 | ||
dd905818 | 6692 | /* Add reloc section name to section name section. */ |
3e19fb8f | 6693 | if (d->rel.hdr |
11c6a7c6 | 6694 | && !_bfd_elf_set_reloc_sh_name (abfd, d->rel.hdr, |
0a1b45a2 AM |
6695 | name, false)) |
6696 | return false; | |
3e19fb8f | 6697 | if (d->rela.hdr |
11c6a7c6 | 6698 | && !_bfd_elf_set_reloc_sh_name (abfd, d->rela.hdr, |
0a1b45a2 AM |
6699 | name, true)) |
6700 | return false; | |
3e19fb8f | 6701 | |
0ce398f1 | 6702 | /* Update section size and contents. */ |
3e19fb8f L |
6703 | shdrp->sh_size = sec->size; |
6704 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6705 | shdrp->bfd_section->contents = NULL; |
6706 | } | |
1ff6de03 NA |
6707 | else if (is_ctf) |
6708 | { | |
6709 | /* Update section size and contents. */ | |
6710 | shdrp->sh_size = sec->size; | |
6711 | shdrp->contents = sec->contents; | |
6712 | } | |
6713 | ||
11c6a7c6 | 6714 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, |
0a1b45a2 | 6715 | true); |
0ce398f1 L |
6716 | } |
6717 | } | |
252b5132 RH |
6718 | } |
6719 | ||
3e19fb8f L |
6720 | /* Place section name section after DWARF debug sections have been |
6721 | compressed. */ | |
6722 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6723 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6724 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
0a1b45a2 | 6725 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, true); |
3e19fb8f L |
6726 | |
6727 | /* Place the section headers. */ | |
a485e98e AM |
6728 | i_ehdrp = elf_elfheader (abfd); |
6729 | bed = get_elf_backend_data (abfd); | |
6730 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6731 | i_ehdrp->e_shoff = off; | |
6732 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6733 | elf_next_file_pos (abfd) = off; |
0ce398f1 | 6734 | |
0a1b45a2 | 6735 | return true; |
252b5132 RH |
6736 | } |
6737 | ||
0a1b45a2 | 6738 | bool |
217aa764 | 6739 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6740 | { |
9c5bfbb7 | 6741 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6742 | Elf_Internal_Shdr **i_shdrp; |
0a1b45a2 | 6743 | bool failed; |
9ad5cbcf | 6744 | unsigned int count, num_sec; |
30e8ee25 | 6745 | struct elf_obj_tdata *t; |
252b5132 RH |
6746 | |
6747 | if (! abfd->output_has_begun | |
217aa764 | 6748 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 6749 | return false; |
db727370 | 6750 | /* Do not rewrite ELF data when the BFD has been opened for update. |
11c6a7c6 AM |
6751 | abfd->output_has_begun was set to TRUE on opening, so creation of |
6752 | new sections, and modification of existing section sizes was | |
6753 | restricted. This means the ELF header, program headers and | |
6754 | section headers can't have changed. If the contents of any | |
6755 | sections has been modified, then those changes have already been | |
6756 | written to the BFD. */ | |
db727370 JL |
6757 | else if (abfd->direction == both_direction) |
6758 | { | |
6759 | BFD_ASSERT (abfd->output_has_begun); | |
0a1b45a2 | 6760 | return true; |
db727370 | 6761 | } |
252b5132 RH |
6762 | |
6763 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6764 | |
0a1b45a2 | 6765 | failed = false; |
252b5132 RH |
6766 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6767 | if (failed) | |
0a1b45a2 | 6768 | return false; |
252b5132 | 6769 | |
0ce398f1 | 6770 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
0a1b45a2 | 6771 | return false; |
252b5132 | 6772 | |
c044fabd | 6773 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6774 | num_sec = elf_numsections (abfd); |
6775 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6776 | { |
3e19fb8f L |
6777 | i_shdrp[count]->sh_name |
6778 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6779 | i_shdrp[count]->sh_name); | |
252b5132 | 6780 | if (bed->elf_backend_section_processing) |
75506100 | 6781 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
0a1b45a2 | 6782 | return false; |
252b5132 RH |
6783 | if (i_shdrp[count]->contents) |
6784 | { | |
dc810e39 AM |
6785 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6786 | ||
252b5132 | 6787 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6788 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
0a1b45a2 | 6789 | return false; |
252b5132 RH |
6790 | } |
6791 | } | |
6792 | ||
6793 | /* Write out the section header names. */ | |
30e8ee25 | 6794 | t = elf_tdata (abfd); |
26ae6d5e | 6795 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6796 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6797 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
0a1b45a2 | 6798 | return false; |
252b5132 | 6799 | |
cc364be6 | 6800 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
0a1b45a2 | 6801 | return false; |
252b5132 | 6802 | |
ff59fc36 | 6803 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
0a1b45a2 | 6804 | return false; |
ff59fc36 RM |
6805 | |
6806 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
9e2bb0cb LB |
6807 | if (t->o->build_id.after_write_object_contents != NULL |
6808 | && !(*t->o->build_id.after_write_object_contents) (abfd)) | |
6809 | return false; | |
6810 | if (t->o->package_metadata.after_write_object_contents != NULL | |
6811 | && !(*t->o->package_metadata.after_write_object_contents) (abfd)) | |
6812 | return false; | |
ff59fc36 | 6813 | |
0a1b45a2 | 6814 | return true; |
252b5132 RH |
6815 | } |
6816 | ||
0a1b45a2 | 6817 | bool |
217aa764 | 6818 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6819 | { |
c044fabd | 6820 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6821 | return _bfd_elf_write_object_contents (abfd); |
6822 | } | |
c044fabd KH |
6823 | |
6824 | /* Given a section, search the header to find them. */ | |
6825 | ||
cb33740c | 6826 | unsigned int |
198beae2 | 6827 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6828 | { |
9c5bfbb7 | 6829 | const struct elf_backend_data *bed; |
91d6fa6a | 6830 | unsigned int sec_index; |
252b5132 | 6831 | |
9ad5cbcf AM |
6832 | if (elf_section_data (asect) != NULL |
6833 | && elf_section_data (asect)->this_idx != 0) | |
6834 | return elf_section_data (asect)->this_idx; | |
6835 | ||
6836 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6837 | sec_index = SHN_ABS; |
af746e92 | 6838 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6839 | sec_index = SHN_COMMON; |
af746e92 | 6840 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6841 | sec_index = SHN_UNDEF; |
af746e92 | 6842 | else |
91d6fa6a | 6843 | sec_index = SHN_BAD; |
252b5132 | 6844 | |
af746e92 | 6845 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6846 | if (bed->elf_backend_section_from_bfd_section) |
6847 | { | |
91d6fa6a | 6848 | int retval = sec_index; |
9ad5cbcf | 6849 | |
af746e92 AM |
6850 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6851 | return retval; | |
252b5132 RH |
6852 | } |
6853 | ||
91d6fa6a | 6854 | if (sec_index == SHN_BAD) |
af746e92 | 6855 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6856 | |
91d6fa6a | 6857 | return sec_index; |
252b5132 RH |
6858 | } |
6859 | ||
6860 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6861 | on error. */ | |
6862 | ||
6863 | int | |
217aa764 | 6864 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6865 | { |
6866 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6867 | int idx; | |
6868 | flagword flags = asym_ptr->flags; | |
6869 | ||
6870 | /* When gas creates relocations against local labels, it creates its | |
6871 | own symbol for the section, but does put the symbol into the | |
6872 | symbol chain, so udata is 0. When the linker is generating | |
6873 | relocatable output, this section symbol may be for one of the | |
6874 | input sections rather than the output section. */ | |
6875 | if (asym_ptr->udata.i == 0 | |
6876 | && (flags & BSF_SECTION_SYM) | |
6877 | && asym_ptr->section) | |
6878 | { | |
5372391b | 6879 | asection *sec; |
252b5132 | 6880 | |
5372391b AM |
6881 | sec = asym_ptr->section; |
6882 | if (sec->owner != abfd && sec->output_section != NULL) | |
6883 | sec = sec->output_section; | |
6884 | if (sec->owner == abfd | |
27e3da31 AM |
6885 | && sec->index < elf_num_section_syms (abfd) |
6886 | && elf_section_syms (abfd)[sec->index] != NULL) | |
6887 | asym_ptr->udata.i = elf_section_syms (abfd)[sec->index]->udata.i; | |
252b5132 RH |
6888 | } |
6889 | ||
6890 | idx = asym_ptr->udata.i; | |
6891 | ||
6892 | if (idx == 0) | |
6893 | { | |
6894 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6895 | which is used in a relocation entry. */ |
4eca0228 | 6896 | _bfd_error_handler |
695344c0 | 6897 | /* xgettext:c-format */ |
871b3ab2 | 6898 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6899 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6900 | bfd_set_error (bfd_error_no_symbols); |
6901 | return -1; | |
6902 | } | |
6903 | ||
6904 | #if DEBUG & 4 | |
6905 | { | |
6906 | fprintf (stderr, | |
11c6a7c6 AM |
6907 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d," |
6908 | " flags = 0x%.8x\n", | |
cd9af601 | 6909 | (long) asym_ptr, asym_ptr->name, idx, flags); |
252b5132 RH |
6910 | fflush (stderr); |
6911 | } | |
6912 | #endif | |
6913 | ||
6914 | return idx; | |
6915 | } | |
6916 | ||
45d92439 AM |
6917 | static inline bfd_vma |
6918 | segment_size (Elf_Internal_Phdr *segment) | |
6919 | { | |
6920 | return (segment->p_memsz > segment->p_filesz | |
6921 | ? segment->p_memsz : segment->p_filesz); | |
6922 | } | |
6923 | ||
6924 | ||
6925 | /* Returns the end address of the segment + 1. */ | |
6926 | static inline bfd_vma | |
6927 | segment_end (Elf_Internal_Phdr *segment, bfd_vma start) | |
6928 | { | |
6929 | return start + segment_size (segment); | |
6930 | } | |
6931 | ||
6932 | static inline bfd_size_type | |
6933 | section_size (asection *section, Elf_Internal_Phdr *segment) | |
6934 | { | |
6935 | if ((section->flags & SEC_HAS_CONTENTS) != 0 | |
6936 | || (section->flags & SEC_THREAD_LOCAL) == 0 | |
6937 | || segment->p_type == PT_TLS) | |
6938 | return section->size; | |
6939 | return 0; | |
6940 | } | |
6941 | ||
6942 | /* Returns TRUE if the given section is contained within the given | |
6943 | segment. LMA addresses are compared against PADDR when | |
6944 | bed->want_p_paddr_set_to_zero is false, VMA against VADDR when true. */ | |
6945 | static bool | |
6946 | is_contained_by (asection *section, Elf_Internal_Phdr *segment, | |
6947 | bfd_vma paddr, bfd_vma vaddr, unsigned int opb, | |
6948 | const struct elf_backend_data *bed) | |
6949 | { | |
6950 | bfd_vma seg_addr = !bed->want_p_paddr_set_to_zero ? paddr : vaddr; | |
6951 | bfd_vma addr = !bed->want_p_paddr_set_to_zero ? section->lma : section->vma; | |
6952 | bfd_vma octet; | |
6953 | if (_bfd_mul_overflow (addr, opb, &octet)) | |
6954 | return false; | |
6955 | /* The third and fourth lines below are testing that the section end | |
6956 | address is within the segment. It's written this way to avoid | |
6957 | overflow. Add seg_addr + section_size to both sides of the | |
6958 | inequality to make it obvious. */ | |
6959 | return (octet >= seg_addr | |
6960 | && segment_size (segment) >= section_size (section, segment) | |
6961 | && (octet - seg_addr | |
6962 | <= segment_size (segment) - section_size (section, segment))); | |
6963 | } | |
6964 | ||
6965 | /* Handle PT_NOTE segment. */ | |
6966 | static bool | |
11c6a7c6 | 6967 | is_note (asection *s, Elf_Internal_Phdr *p) |
45d92439 AM |
6968 | { |
6969 | return (p->p_type == PT_NOTE | |
6970 | && elf_section_type (s) == SHT_NOTE | |
6971 | && (ufile_ptr) s->filepos >= p->p_offset | |
6972 | && p->p_filesz >= s->size | |
11c6a7c6 | 6973 | && (ufile_ptr) s->filepos - p->p_offset <= p->p_filesz - s->size); |
45d92439 AM |
6974 | } |
6975 | ||
84d1d650 | 6976 | /* Rewrite program header information. */ |
252b5132 | 6977 | |
0a1b45a2 | 6978 | static bool |
c410035d | 6979 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd, bfd_vma maxpagesize) |
252b5132 | 6980 | { |
b34976b6 AM |
6981 | Elf_Internal_Ehdr *iehdr; |
6982 | struct elf_segment_map *map; | |
6983 | struct elf_segment_map *map_first; | |
6984 | struct elf_segment_map **pointer_to_map; | |
6985 | Elf_Internal_Phdr *segment; | |
6986 | asection *section; | |
6987 | unsigned int i; | |
6988 | unsigned int num_segments; | |
0a1b45a2 AM |
6989 | bool phdr_included = false; |
6990 | bool p_paddr_valid; | |
b34976b6 AM |
6991 | struct elf_segment_map *phdr_adjust_seg = NULL; |
6992 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6993 | const struct elf_backend_data *bed; |
502794d4 | 6994 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
bc67d8a6 | 6995 | |
caf47ea6 | 6996 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6997 | iehdr = elf_elfheader (ibfd); |
6998 | ||
bc67d8a6 | 6999 | map_first = NULL; |
c044fabd | 7000 | pointer_to_map = &map_first; |
252b5132 RH |
7001 | |
7002 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 | 7003 | |
252b5132 RH |
7004 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
7005 | linker, which generates a PT_INTERP section with p_vaddr and | |
7006 | p_memsz set to 0. */ | |
aecc8f8a AM |
7007 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
7008 | (p->p_vaddr == 0 \ | |
7009 | && p->p_paddr == 0 \ | |
7010 | && p->p_memsz == 0 \ | |
7011 | && p->p_filesz > 0 \ | |
7012 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 7013 | && s->size > 0 \ |
aecc8f8a | 7014 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 7015 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 7016 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 7017 | |
bc67d8a6 NC |
7018 | /* Decide if the given section should be included in the given segment. |
7019 | A section will be included if: | |
f5ffc919 | 7020 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 7021 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 7022 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 7023 | segment. |
bc67d8a6 | 7024 | 3. There is an output section associated with it, |
eecdbe52 | 7025 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 7026 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 7027 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
7028 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
7029 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 7030 | (with the possible exception of .dynamic). */ |
502794d4 | 7031 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed, opb) \ |
45d92439 AM |
7032 | (((is_contained_by (section, segment, segment->p_paddr, \ |
7033 | segment->p_vaddr, opb, bed) \ | |
2b05f1b7 | 7034 | && (section->flags & SEC_ALLOC) != 0) \ |
11c6a7c6 | 7035 | || is_note (section, segment)) \ |
2b05f1b7 L |
7036 | && segment->p_type != PT_GNU_STACK \ |
7037 | && (segment->p_type != PT_TLS \ | |
7038 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
7039 | && (segment->p_type == PT_LOAD \ | |
7040 | || segment->p_type == PT_TLS \ | |
7041 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
7042 | && (segment->p_type != PT_DYNAMIC \ | |
45d92439 | 7043 | || section_size (section, segment) > 0 \ |
2b05f1b7 | 7044 | || (segment->p_paddr \ |
502794d4 CE |
7045 | ? segment->p_paddr != section->lma * (opb) \ |
7046 | : segment->p_vaddr != section->vma * (opb)) \ | |
fd361982 | 7047 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 7048 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 7049 | |
9f17e2a6 L |
7050 | /* If the output section of a section in the input segment is NULL, |
7051 | it is removed from the corresponding output segment. */ | |
502794d4 CE |
7052 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed, opb) \ |
7053 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb) \ | |
9f17e2a6 L |
7054 | && section->output_section != NULL) |
7055 | ||
b34976b6 | 7056 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea | 7057 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
45d92439 | 7058 | (seg1->field >= segment_end (seg2, seg2->field)) |
b5f852ea NC |
7059 | |
7060 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
7061 | their VMA address ranges and their LMA address ranges overlap. | |
7062 | It is possible to have overlapping VMA ranges without overlapping LMA | |
7063 | ranges. RedBoot images for example can have both .data and .bss mapped | |
7064 | to the same VMA range, but with the .data section mapped to a different | |
7065 | LMA. */ | |
aecc8f8a | 7066 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 7067 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 7068 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 7069 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 7070 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 | 7071 | |
c82ebeb7 | 7072 | /* Initialise the segment mark field, and discard stupid alignment. */ |
bc67d8a6 | 7073 | for (section = ibfd->sections; section != NULL; section = section->next) |
c82ebeb7 AM |
7074 | { |
7075 | asection *o = section->output_section; | |
7076 | if (o != NULL && o->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
7077 | o->alignment_power = 0; | |
7078 | section->segment_mark = false; | |
7079 | } | |
bc67d8a6 | 7080 | |
5c44b38e AM |
7081 | /* The Solaris linker creates program headers in which all the |
7082 | p_paddr fields are zero. When we try to objcopy or strip such a | |
7083 | file, we get confused. Check for this case, and if we find it | |
7084 | don't set the p_paddr_valid fields. */ | |
0a1b45a2 | 7085 | p_paddr_valid = false; |
5c44b38e AM |
7086 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7087 | i < num_segments; | |
7088 | i++, segment++) | |
7089 | if (segment->p_paddr != 0) | |
7090 | { | |
0a1b45a2 | 7091 | p_paddr_valid = true; |
5c44b38e AM |
7092 | break; |
7093 | } | |
7094 | ||
252b5132 | 7095 | /* Scan through the segments specified in the program header |
bc67d8a6 | 7096 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 7097 | in the loadable segments. These can be created by weird |
aecc8f8a | 7098 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
7099 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7100 | i < num_segments; | |
c044fabd | 7101 | i++, segment++) |
252b5132 | 7102 | { |
252b5132 | 7103 | unsigned int j; |
c044fabd | 7104 | Elf_Internal_Phdr *segment2; |
252b5132 | 7105 | |
aecc8f8a AM |
7106 | if (segment->p_type == PT_INTERP) |
7107 | for (section = ibfd->sections; section; section = section->next) | |
7108 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
7109 | { | |
7110 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 7111 | assignment code will work. */ |
502794d4 | 7112 | segment->p_vaddr = section->vma * opb; |
aecc8f8a AM |
7113 | break; |
7114 | } | |
7115 | ||
bc67d8a6 | 7116 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
7117 | { |
7118 | /* Remove PT_GNU_RELRO segment. */ | |
7119 | if (segment->p_type == PT_GNU_RELRO) | |
7120 | segment->p_type = PT_NULL; | |
7121 | continue; | |
7122 | } | |
c044fabd | 7123 | |
bc67d8a6 | 7124 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 7125 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
7126 | { |
7127 | bfd_signed_vma extra_length; | |
c044fabd | 7128 | |
bc67d8a6 | 7129 | if (segment2->p_type != PT_LOAD |
0067a569 | 7130 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 7131 | continue; |
c044fabd | 7132 | |
bc67d8a6 NC |
7133 | /* Merge the two segments together. */ |
7134 | if (segment2->p_vaddr < segment->p_vaddr) | |
7135 | { | |
c044fabd | 7136 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 7137 | SEGMENT. */ |
45d92439 AM |
7138 | extra_length = (segment_end (segment, segment->p_vaddr) |
7139 | - segment_end (segment2, segment2->p_vaddr)); | |
c044fabd | 7140 | |
bc67d8a6 NC |
7141 | if (extra_length > 0) |
7142 | { | |
0067a569 | 7143 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
7144 | segment2->p_filesz += extra_length; |
7145 | } | |
c044fabd | 7146 | |
bc67d8a6 | 7147 | segment->p_type = PT_NULL; |
c044fabd | 7148 | |
bc67d8a6 NC |
7149 | /* Since we have deleted P we must restart the outer loop. */ |
7150 | i = 0; | |
7151 | segment = elf_tdata (ibfd)->phdr; | |
7152 | break; | |
7153 | } | |
7154 | else | |
7155 | { | |
c044fabd | 7156 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7157 | SEGMENT2. */ |
45d92439 AM |
7158 | extra_length = (segment_end (segment2, segment2->p_vaddr) |
7159 | - segment_end (segment, segment->p_vaddr)); | |
c044fabd | 7160 | |
bc67d8a6 NC |
7161 | if (extra_length > 0) |
7162 | { | |
0067a569 | 7163 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7164 | segment->p_filesz += extra_length; |
7165 | } | |
c044fabd | 7166 | |
bc67d8a6 NC |
7167 | segment2->p_type = PT_NULL; |
7168 | } | |
7169 | } | |
7170 | } | |
c044fabd | 7171 | |
bc67d8a6 NC |
7172 | /* The second scan attempts to assign sections to segments. */ |
7173 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7174 | i < num_segments; | |
0067a569 | 7175 | i++, segment++) |
bc67d8a6 | 7176 | { |
0067a569 AM |
7177 | unsigned int section_count; |
7178 | asection **sections; | |
7179 | asection *output_section; | |
7180 | unsigned int isec; | |
9933dc52 AM |
7181 | asection *matching_lma; |
7182 | asection *suggested_lma; | |
0067a569 | 7183 | unsigned int j; |
446f7ed5 | 7184 | size_t amt; |
0067a569 | 7185 | asection *first_section; |
bc67d8a6 NC |
7186 | |
7187 | if (segment->p_type == PT_NULL) | |
7188 | continue; | |
c044fabd | 7189 | |
9f17e2a6 | 7190 | first_section = NULL; |
bc67d8a6 | 7191 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7192 | for (section = ibfd->sections, section_count = 0; |
7193 | section != NULL; | |
7194 | section = section->next) | |
9f17e2a6 L |
7195 | { |
7196 | /* Find the first section in the input segment, which may be | |
7197 | removed from the corresponding output segment. */ | |
502794d4 | 7198 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb)) |
9f17e2a6 L |
7199 | { |
7200 | if (first_section == NULL) | |
7201 | first_section = section; | |
7202 | if (section->output_section != NULL) | |
7203 | ++section_count; | |
7204 | } | |
7205 | } | |
811072d8 | 7206 | |
b5f852ea NC |
7207 | /* Allocate a segment map big enough to contain |
7208 | all of the sections we have selected. */ | |
00bee008 | 7209 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7210 | amt += section_count * sizeof (asection *); |
a50b1753 | 7211 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7212 | if (map == NULL) |
0a1b45a2 | 7213 | return false; |
252b5132 RH |
7214 | |
7215 | /* Initialise the fields of the segment map. Default to | |
7216 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7217 | map->next = NULL; |
7218 | map->p_type = segment->p_type; | |
7219 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7220 | map->p_flags_valid = 1; |
55d55ac7 | 7221 | |
c410035d AM |
7222 | if (map->p_type == PT_LOAD |
7223 | && (ibfd->flags & D_PAGED) != 0 | |
7224 | && maxpagesize > 1 | |
7225 | && segment->p_align > 1) | |
7226 | { | |
7227 | map->p_align = segment->p_align; | |
7228 | if (segment->p_align > maxpagesize) | |
7229 | map->p_align = maxpagesize; | |
7230 | map->p_align_valid = 1; | |
7231 | } | |
7232 | ||
9f17e2a6 L |
7233 | /* If the first section in the input segment is removed, there is |
7234 | no need to preserve segment physical address in the corresponding | |
7235 | output segment. */ | |
945c025a | 7236 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7237 | { |
7238 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7239 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7240 | } |
252b5132 RH |
7241 | |
7242 | /* Determine if this segment contains the ELF file header | |
7243 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7244 | map->includes_filehdr = (segment->p_offset == 0 |
7245 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7246 | map->includes_phdrs = 0; |
252b5132 | 7247 | |
0067a569 | 7248 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7249 | { |
bc67d8a6 NC |
7250 | map->includes_phdrs = |
7251 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7252 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7253 | >= ((bfd_vma) iehdr->e_phoff |
7254 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7255 | |
bc67d8a6 | 7256 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
0a1b45a2 | 7257 | phdr_included = true; |
252b5132 RH |
7258 | } |
7259 | ||
bc67d8a6 | 7260 | if (section_count == 0) |
252b5132 RH |
7261 | { |
7262 | /* Special segments, such as the PT_PHDR segment, may contain | |
7263 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7264 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7265 | a warning is produced. |
f98450c6 NC |
7266 | There is however the valid use case of embedded systems which |
7267 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7268 | flash memory with zeros. No warning is shown for that case. */ | |
7269 | if (segment->p_type == PT_LOAD | |
7270 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7271 | /* xgettext:c-format */ | |
9793eb77 AM |
7272 | _bfd_error_handler |
7273 | (_("%pB: warning: empty loadable segment detected" | |
7274 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7275 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7276 | |
502794d4 | 7277 | map->p_vaddr_offset = segment->p_vaddr / opb; |
bc67d8a6 | 7278 | map->count = 0; |
c044fabd KH |
7279 | *pointer_to_map = map; |
7280 | pointer_to_map = &map->next; | |
252b5132 RH |
7281 | |
7282 | continue; | |
7283 | } | |
7284 | ||
7285 | /* Now scan the sections in the input BFD again and attempt | |
7286 | to add their corresponding output sections to the segment map. | |
7287 | The problem here is how to handle an output section which has | |
7288 | been moved (ie had its LMA changed). There are four possibilities: | |
7289 | ||
7290 | 1. None of the sections have been moved. | |
7291 | In this case we can continue to use the segment LMA from the | |
7292 | input BFD. | |
7293 | ||
7294 | 2. All of the sections have been moved by the same amount. | |
7295 | In this case we can change the segment's LMA to match the LMA | |
7296 | of the first section. | |
7297 | ||
7298 | 3. Some of the sections have been moved, others have not. | |
7299 | In this case those sections which have not been moved can be | |
7300 | placed in the current segment which will have to have its size, | |
7301 | and possibly its LMA changed, and a new segment or segments will | |
7302 | have to be created to contain the other sections. | |
7303 | ||
b5f852ea | 7304 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7305 | In this case we can change the segment's LMA to match the LMA |
7306 | of the first section and we will have to create a new segment | |
7307 | or segments to contain the other sections. | |
7308 | ||
7309 | In order to save time, we allocate an array to hold the section | |
7310 | pointers that we are interested in. As these sections get assigned | |
7311 | to a segment, they are removed from this array. */ | |
7312 | ||
446f7ed5 AM |
7313 | amt = section_count * sizeof (asection *); |
7314 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7315 | if (sections == NULL) |
0a1b45a2 | 7316 | return false; |
252b5132 RH |
7317 | |
7318 | /* Step One: Scan for segment vs section LMA conflicts. | |
7319 | Also add the sections to the section array allocated above. | |
7320 | Also add the sections to the current segment. In the common | |
7321 | case, where the sections have not been moved, this means that | |
7322 | we have completely filled the segment, and there is nothing | |
7323 | more to do. */ | |
252b5132 | 7324 | isec = 0; |
9933dc52 AM |
7325 | matching_lma = NULL; |
7326 | suggested_lma = NULL; | |
252b5132 | 7327 | |
461c4b2e | 7328 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7329 | section != NULL; |
7330 | section = section->next) | |
252b5132 | 7331 | { |
502794d4 | 7332 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed, opb)) |
c0f7859b | 7333 | { |
bc67d8a6 NC |
7334 | output_section = section->output_section; |
7335 | ||
0067a569 | 7336 | sections[j++] = section; |
252b5132 RH |
7337 | |
7338 | /* The Solaris native linker always sets p_paddr to 0. | |
7339 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7340 | correct value. Note - some backends require that |
7341 | p_paddr be left as zero. */ | |
5c44b38e | 7342 | if (!p_paddr_valid |
4455705d | 7343 | && segment->p_vaddr != 0 |
0067a569 | 7344 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7345 | && isec == 0 |
bc67d8a6 | 7346 | && output_section->lma != 0 |
9933dc52 AM |
7347 | && (align_power (segment->p_vaddr |
7348 | + (map->includes_filehdr | |
7349 | ? iehdr->e_ehsize : 0) | |
7350 | + (map->includes_phdrs | |
7351 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7352 | : 0), | |
66631823 CE |
7353 | output_section->alignment_power * opb) |
7354 | == (output_section->vma * opb))) | |
bc67d8a6 | 7355 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7356 | |
7357 | /* Match up the physical address of the segment with the | |
7358 | LMA address of the output section. */ | |
45d92439 AM |
7359 | if (is_contained_by (output_section, segment, map->p_paddr, |
7360 | map->p_paddr + map->p_vaddr_offset, opb, bed) | |
11c6a7c6 | 7361 | || is_note (section, segment)) |
252b5132 | 7362 | { |
9933dc52 AM |
7363 | if (matching_lma == NULL |
7364 | || output_section->lma < matching_lma->lma) | |
7365 | matching_lma = output_section; | |
252b5132 RH |
7366 | |
7367 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7368 | then it does not overlap any other section within that |
252b5132 | 7369 | segment. */ |
0067a569 AM |
7370 | map->sections[isec++] = output_section; |
7371 | } | |
9933dc52 AM |
7372 | else if (suggested_lma == NULL) |
7373 | suggested_lma = output_section; | |
147d51c2 L |
7374 | |
7375 | if (j == section_count) | |
7376 | break; | |
252b5132 RH |
7377 | } |
7378 | } | |
7379 | ||
bc67d8a6 | 7380 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7381 | |
7382 | /* Step Two: Adjust the physical address of the current segment, | |
7383 | if necessary. */ | |
bc67d8a6 | 7384 | if (isec == section_count) |
252b5132 RH |
7385 | { |
7386 | /* All of the sections fitted within the segment as currently | |
7387 | specified. This is the default case. Add the segment to | |
7388 | the list of built segments and carry on to process the next | |
7389 | program header in the input BFD. */ | |
bc67d8a6 | 7390 | map->count = section_count; |
c044fabd KH |
7391 | *pointer_to_map = map; |
7392 | pointer_to_map = &map->next; | |
08a40648 | 7393 | |
5c44b38e | 7394 | if (p_paddr_valid |
30fe1832 AM |
7395 | && !bed->want_p_paddr_set_to_zero) |
7396 | { | |
7397 | bfd_vma hdr_size = 0; | |
7398 | if (map->includes_filehdr) | |
7399 | hdr_size = iehdr->e_ehsize; | |
7400 | if (map->includes_phdrs) | |
7401 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7402 | ||
7403 | /* Account for padding before the first section in the | |
7404 | segment. */ | |
502794d4 CE |
7405 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
7406 | - matching_lma->lma); | |
30fe1832 | 7407 | } |
08a40648 | 7408 | |
252b5132 RH |
7409 | free (sections); |
7410 | continue; | |
7411 | } | |
252b5132 RH |
7412 | else |
7413 | { | |
9933dc52 AM |
7414 | /* Change the current segment's physical address to match |
7415 | the LMA of the first section that fitted, or if no | |
7416 | section fitted, the first section. */ | |
7417 | if (matching_lma == NULL) | |
7418 | matching_lma = suggested_lma; | |
7419 | ||
66631823 | 7420 | map->p_paddr = matching_lma->lma * opb; |
72730e0c | 7421 | |
bc67d8a6 NC |
7422 | /* Offset the segment physical address from the lma |
7423 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7424 | if (map->includes_phdrs) |
010c8431 | 7425 | { |
9933dc52 AM |
7426 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7427 | ||
7428 | /* iehdr->e_phnum is just an estimate of the number | |
7429 | of program headers that we will need. Make a note | |
7430 | here of the number we used and the segment we chose | |
7431 | to hold these headers, so that we can adjust the | |
7432 | offset when we know the correct value. */ | |
7433 | phdr_adjust_num = iehdr->e_phnum; | |
7434 | phdr_adjust_seg = map; | |
010c8431 | 7435 | } |
252b5132 | 7436 | |
9933dc52 | 7437 | if (map->includes_filehdr) |
bc67d8a6 | 7438 | { |
9933dc52 AM |
7439 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7440 | map->p_paddr -= iehdr->e_ehsize; | |
7441 | /* We've subtracted off the size of headers from the | |
7442 | first section lma, but there may have been some | |
7443 | alignment padding before that section too. Try to | |
7444 | account for that by adjusting the segment lma down to | |
7445 | the same alignment. */ | |
7446 | if (segment->p_align != 0 && segment->p_align < align) | |
7447 | align = segment->p_align; | |
66631823 | 7448 | map->p_paddr &= -(align * opb); |
bc67d8a6 | 7449 | } |
252b5132 RH |
7450 | } |
7451 | ||
7452 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7453 | those that fit to the current segment and removing them from the |
252b5132 RH |
7454 | sections array; but making sure not to leave large gaps. Once all |
7455 | possible sections have been assigned to the current segment it is | |
7456 | added to the list of built segments and if sections still remain | |
7457 | to be assigned, a new segment is constructed before repeating | |
7458 | the loop. */ | |
7459 | isec = 0; | |
7460 | do | |
7461 | { | |
bc67d8a6 | 7462 | map->count = 0; |
9933dc52 | 7463 | suggested_lma = NULL; |
252b5132 RH |
7464 | |
7465 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7466 | for (j = 0; j < section_count; j++) |
252b5132 | 7467 | { |
bc67d8a6 | 7468 | section = sections[j]; |
252b5132 | 7469 | |
bc67d8a6 | 7470 | if (section == NULL) |
252b5132 RH |
7471 | continue; |
7472 | ||
bc67d8a6 | 7473 | output_section = section->output_section; |
252b5132 | 7474 | |
bc67d8a6 | 7475 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7476 | |
45d92439 AM |
7477 | if (is_contained_by (output_section, segment, map->p_paddr, |
7478 | map->p_paddr + map->p_vaddr_offset, opb, bed) | |
11c6a7c6 | 7479 | || is_note (section, segment)) |
252b5132 | 7480 | { |
bc67d8a6 | 7481 | if (map->count == 0) |
252b5132 RH |
7482 | { |
7483 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7484 | the beginning of the segment, then something is |
7485 | wrong. */ | |
9933dc52 AM |
7486 | if (align_power (map->p_paddr |
7487 | + (map->includes_filehdr | |
7488 | ? iehdr->e_ehsize : 0) | |
7489 | + (map->includes_phdrs | |
7490 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7491 | : 0), | |
66631823 CE |
7492 | output_section->alignment_power * opb) |
7493 | != output_section->lma * opb) | |
9aea1e31 | 7494 | goto sorry; |
252b5132 RH |
7495 | } |
7496 | else | |
7497 | { | |
0067a569 | 7498 | asection *prev_sec; |
252b5132 | 7499 | |
bc67d8a6 | 7500 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7501 | |
7502 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7503 | and the start of this section is more than |
7504 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7505 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7506 | maxpagesize) |
caf47ea6 | 7507 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7508 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7509 | > output_section->lma)) |
252b5132 | 7510 | { |
9933dc52 AM |
7511 | if (suggested_lma == NULL) |
7512 | suggested_lma = output_section; | |
252b5132 RH |
7513 | |
7514 | continue; | |
7515 | } | |
7516 | } | |
7517 | ||
bc67d8a6 | 7518 | map->sections[map->count++] = output_section; |
252b5132 RH |
7519 | ++isec; |
7520 | sections[j] = NULL; | |
9933dc52 | 7521 | if (segment->p_type == PT_LOAD) |
0a1b45a2 | 7522 | section->segment_mark = true; |
0067a569 | 7523 | } |
9933dc52 AM |
7524 | else if (suggested_lma == NULL) |
7525 | suggested_lma = output_section; | |
252b5132 RH |
7526 | } |
7527 | ||
beab4532 NC |
7528 | /* PR 23932. A corrupt input file may contain sections that cannot |
7529 | be assigned to any segment - because for example they have a | |
9984857c NC |
7530 | negative size - or segments that do not contain any sections. |
7531 | But there are also valid reasons why a segment can be empty. | |
7532 | So allow a count of zero. */ | |
252b5132 RH |
7533 | |
7534 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7535 | *pointer_to_map = map; |
7536 | pointer_to_map = &map->next; | |
252b5132 | 7537 | |
bc67d8a6 | 7538 | if (isec < section_count) |
252b5132 RH |
7539 | { |
7540 | /* We still have not allocated all of the sections to | |
7541 | segments. Create a new segment here, initialise it | |
7542 | and carry on looping. */ | |
00bee008 | 7543 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7544 | amt += section_count * sizeof (asection *); |
5964fc3a | 7545 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7546 | if (map == NULL) |
5ed6aba4 NC |
7547 | { |
7548 | free (sections); | |
0a1b45a2 | 7549 | return false; |
5ed6aba4 | 7550 | } |
252b5132 RH |
7551 | |
7552 | /* Initialise the fields of the segment map. Set the physical | |
7553 | physical address to the LMA of the first section that has | |
7554 | not yet been assigned. */ | |
0067a569 AM |
7555 | map->next = NULL; |
7556 | map->p_type = segment->p_type; | |
7557 | map->p_flags = segment->p_flags; | |
7558 | map->p_flags_valid = 1; | |
66631823 | 7559 | map->p_paddr = suggested_lma->lma * opb; |
5c44b38e | 7560 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7561 | map->includes_filehdr = 0; |
0067a569 | 7562 | map->includes_phdrs = 0; |
252b5132 | 7563 | } |
9984857c NC |
7564 | |
7565 | continue; | |
7566 | sorry: | |
7567 | bfd_set_error (bfd_error_sorry); | |
7568 | free (sections); | |
0a1b45a2 | 7569 | return false; |
252b5132 | 7570 | } |
bc67d8a6 | 7571 | while (isec < section_count); |
252b5132 RH |
7572 | |
7573 | free (sections); | |
7574 | } | |
7575 | ||
12bd6957 | 7576 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7577 | |
7578 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7579 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7580 | the offset if necessary. */ |
7581 | if (phdr_adjust_seg != NULL) | |
7582 | { | |
7583 | unsigned int count; | |
c044fabd | 7584 | |
bc67d8a6 | 7585 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7586 | count++; |
252b5132 | 7587 | |
bc67d8a6 NC |
7588 | if (count > phdr_adjust_num) |
7589 | phdr_adjust_seg->p_paddr | |
7590 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7591 | |
7592 | for (map = map_first; map != NULL; map = map->next) | |
7593 | if (map->p_type == PT_PHDR) | |
7594 | { | |
7595 | bfd_vma adjust | |
7596 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7597 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7598 | break; | |
7599 | } | |
bc67d8a6 | 7600 | } |
c044fabd | 7601 | |
bc67d8a6 | 7602 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7603 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7604 | #undef INCLUDE_SECTION_IN_SEGMENT |
7605 | #undef SEGMENT_AFTER_SEGMENT | |
7606 | #undef SEGMENT_OVERLAPS | |
0a1b45a2 | 7607 | return true; |
252b5132 RH |
7608 | } |
7609 | ||
74e315db L |
7610 | /* Return true if p_align in the ELF program header in ABFD is valid. */ |
7611 | ||
7612 | static bool | |
7613 | elf_is_p_align_valid (bfd *abfd) | |
7614 | { | |
7615 | unsigned int i; | |
7616 | Elf_Internal_Phdr *segment; | |
7617 | unsigned int num_segments; | |
7618 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7619 | bfd_size_type maxpagesize = bed->maxpagesize; | |
7620 | bfd_size_type p_align = bed->p_align; | |
7621 | ||
7622 | /* Return true if the default p_align value isn't set or the maximum | |
7623 | page size is the same as the minimum page size. */ | |
7624 | if (p_align == 0 || maxpagesize == bed->minpagesize) | |
7625 | return true; | |
7626 | ||
7627 | /* When the default p_align value is set, p_align may be set to the | |
7628 | default p_align value while segments are aligned to the maximum | |
7629 | page size. In this case, the input p_align will be ignored and | |
7630 | the maximum page size will be used to align the output segments. */ | |
7631 | segment = elf_tdata (abfd)->phdr; | |
7632 | num_segments = elf_elfheader (abfd)->e_phnum; | |
7633 | for (i = 0; i < num_segments; i++, segment++) | |
7634 | if (segment->p_type == PT_LOAD | |
7635 | && (segment->p_align != p_align | |
7636 | || vma_page_aligned_bias (segment->p_vaddr, | |
7637 | segment->p_offset, | |
7638 | maxpagesize) != 0)) | |
7639 | return true; | |
7640 | ||
7641 | return false; | |
7642 | } | |
7643 | ||
84d1d650 L |
7644 | /* Copy ELF program header information. */ |
7645 | ||
0a1b45a2 | 7646 | static bool |
84d1d650 L |
7647 | copy_elf_program_header (bfd *ibfd, bfd *obfd) |
7648 | { | |
7649 | Elf_Internal_Ehdr *iehdr; | |
7650 | struct elf_segment_map *map; | |
7651 | struct elf_segment_map *map_first; | |
7652 | struct elf_segment_map **pointer_to_map; | |
7653 | Elf_Internal_Phdr *segment; | |
7654 | unsigned int i; | |
7655 | unsigned int num_segments; | |
0a1b45a2 AM |
7656 | bool phdr_included = false; |
7657 | bool p_paddr_valid; | |
74e315db | 7658 | bool p_palign_valid; |
502794d4 | 7659 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
84d1d650 L |
7660 | |
7661 | iehdr = elf_elfheader (ibfd); | |
7662 | ||
7663 | map_first = NULL; | |
7664 | pointer_to_map = &map_first; | |
7665 | ||
88967714 AM |
7666 | /* If all the segment p_paddr fields are zero, don't set |
7667 | map->p_paddr_valid. */ | |
0a1b45a2 | 7668 | p_paddr_valid = false; |
84d1d650 | 7669 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7670 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7671 | i < num_segments; | |
7672 | i++, segment++) | |
7673 | if (segment->p_paddr != 0) | |
7674 | { | |
0a1b45a2 | 7675 | p_paddr_valid = true; |
88967714 AM |
7676 | break; |
7677 | } | |
7678 | ||
74e315db L |
7679 | p_palign_valid = elf_is_p_align_valid (ibfd); |
7680 | ||
84d1d650 L |
7681 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7682 | i < num_segments; | |
7683 | i++, segment++) | |
7684 | { | |
7685 | asection *section; | |
7686 | unsigned int section_count; | |
986f0783 | 7687 | size_t amt; |
84d1d650 | 7688 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7689 | asection *first_section = NULL; |
a76e6f2f | 7690 | asection *lowest_section; |
84d1d650 | 7691 | |
84d1d650 L |
7692 | /* Compute how many sections are in this segment. */ |
7693 | for (section = ibfd->sections, section_count = 0; | |
7694 | section != NULL; | |
7695 | section = section->next) | |
7696 | { | |
7697 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7698 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7699 | { |
a76e6f2f AM |
7700 | if (first_section == NULL) |
7701 | first_section = section; | |
3271a814 NS |
7702 | section_count++; |
7703 | } | |
84d1d650 L |
7704 | } |
7705 | ||
7706 | /* Allocate a segment map big enough to contain | |
7707 | all of the sections we have selected. */ | |
00bee008 | 7708 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7709 | amt += section_count * sizeof (asection *); |
a50b1753 | 7710 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 | 7711 | if (map == NULL) |
0a1b45a2 | 7712 | return false; |
84d1d650 L |
7713 | |
7714 | /* Initialize the fields of the output segment map with the | |
7715 | input segment. */ | |
7716 | map->next = NULL; | |
7717 | map->p_type = segment->p_type; | |
7718 | map->p_flags = segment->p_flags; | |
7719 | map->p_flags_valid = 1; | |
7720 | map->p_paddr = segment->p_paddr; | |
88967714 | 7721 | map->p_paddr_valid = p_paddr_valid; |
3f570048 | 7722 | map->p_align = segment->p_align; |
fb5a4a58 L |
7723 | /* Keep p_align of PT_GNU_STACK for stack alignment. */ |
7724 | map->p_align_valid = (map->p_type == PT_GNU_STACK | |
7725 | || p_palign_valid); | |
3271a814 | 7726 | map->p_vaddr_offset = 0; |
84d1d650 | 7727 | |
04c3a755 NS |
7728 | if (map->p_type == PT_GNU_RELRO |
7729 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7730 | { |
7731 | /* The PT_GNU_RELRO segment may contain the first a few | |
7732 | bytes in the .got.plt section even if the whole .got.plt | |
7733 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7734 | change the size of the PT_GNU_RELRO segment. |
7735 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7736 | systems. */ | |
9433b9b1 | 7737 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7738 | map->p_size_valid = 1; |
7739 | } | |
7740 | ||
84d1d650 L |
7741 | /* Determine if this segment contains the ELF file header |
7742 | and if it contains the program headers themselves. */ | |
7743 | map->includes_filehdr = (segment->p_offset == 0 | |
7744 | && segment->p_filesz >= iehdr->e_ehsize); | |
7745 | ||
7746 | map->includes_phdrs = 0; | |
7747 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7748 | { | |
7749 | map->includes_phdrs = | |
7750 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7751 | && (segment->p_offset + segment->p_filesz | |
7752 | >= ((bfd_vma) iehdr->e_phoff | |
7753 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7754 | ||
7755 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
0a1b45a2 | 7756 | phdr_included = true; |
84d1d650 L |
7757 | } |
7758 | ||
bbefd0a9 | 7759 | lowest_section = NULL; |
84d1d650 L |
7760 | if (section_count != 0) |
7761 | { | |
7762 | unsigned int isec = 0; | |
7763 | ||
53020534 | 7764 | for (section = first_section; |
84d1d650 L |
7765 | section != NULL; |
7766 | section = section->next) | |
7767 | { | |
7768 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7769 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7770 | { |
7771 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7772 | if ((section->flags & SEC_ALLOC) != 0) |
7773 | { | |
7774 | bfd_vma seg_off; | |
7775 | ||
bbefd0a9 AM |
7776 | if (lowest_section == NULL |
7777 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7778 | lowest_section = section; |
7779 | ||
a76e6f2f AM |
7780 | /* Section lmas are set up from PT_LOAD header |
7781 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7782 | If this header has a p_paddr that disagrees | |
7783 | with the section lma, flag the p_paddr as | |
7784 | invalid. */ | |
7785 | if ((section->flags & SEC_LOAD) != 0) | |
7786 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7787 | else | |
7788 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
502794d4 | 7789 | if (section->lma * opb - segment->p_paddr != seg_off) |
0a1b45a2 | 7790 | map->p_paddr_valid = false; |
a76e6f2f | 7791 | } |
53020534 L |
7792 | if (isec == section_count) |
7793 | break; | |
7794 | } | |
84d1d650 L |
7795 | } |
7796 | } | |
7797 | ||
5d695627 | 7798 | if (section_count == 0) |
502794d4 | 7799 | map->p_vaddr_offset = segment->p_vaddr / opb; |
30fe1832 AM |
7800 | else if (map->p_paddr_valid) |
7801 | { | |
7802 | /* Account for padding before the first section in the segment. */ | |
7803 | bfd_vma hdr_size = 0; | |
7804 | if (map->includes_filehdr) | |
7805 | hdr_size = iehdr->e_ehsize; | |
7806 | if (map->includes_phdrs) | |
7807 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7808 | ||
502794d4 | 7809 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
30fe1832 AM |
7810 | - (lowest_section ? lowest_section->lma : 0)); |
7811 | } | |
a76e6f2f | 7812 | |
84d1d650 L |
7813 | map->count = section_count; |
7814 | *pointer_to_map = map; | |
7815 | pointer_to_map = &map->next; | |
7816 | } | |
7817 | ||
12bd6957 | 7818 | elf_seg_map (obfd) = map_first; |
0a1b45a2 | 7819 | return true; |
84d1d650 L |
7820 | } |
7821 | ||
7822 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7823 | information. */ | |
7824 | ||
0a1b45a2 | 7825 | static bool |
84d1d650 L |
7826 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
7827 | { | |
c410035d AM |
7828 | bfd_vma maxpagesize; |
7829 | ||
84d1d650 L |
7830 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7831 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 7832 | return true; |
84d1d650 L |
7833 | |
7834 | if (elf_tdata (ibfd)->phdr == NULL) | |
0a1b45a2 | 7835 | return true; |
84d1d650 L |
7836 | |
7837 | if (ibfd->xvec == obfd->xvec) | |
7838 | { | |
cb3ff1e5 NC |
7839 | /* Check to see if any sections in the input BFD |
7840 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7841 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7842 | asection *section, *osec; |
7843 | unsigned int i, num_segments; | |
7844 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7845 | const struct elf_backend_data *bed; |
7846 | ||
7847 | bed = get_elf_backend_data (ibfd); | |
7848 | ||
7849 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7850 | if (bed->want_p_paddr_set_to_zero) | |
7851 | goto rewrite; | |
84d1d650 L |
7852 | |
7853 | /* Initialize the segment mark field. */ | |
7854 | for (section = obfd->sections; section != NULL; | |
7855 | section = section->next) | |
0a1b45a2 | 7856 | section->segment_mark = false; |
84d1d650 L |
7857 | |
7858 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7859 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7860 | i < num_segments; | |
7861 | i++, segment++) | |
7862 | { | |
5f6999aa NC |
7863 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7864 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7865 | which severly confuses things, so always regenerate the segment | |
7866 | map in this case. */ | |
7867 | if (segment->p_paddr == 0 | |
7868 | && segment->p_memsz == 0 | |
11c6a7c6 AM |
7869 | && (segment->p_type == PT_INTERP |
7870 | || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7871 | goto rewrite; |
5f6999aa | 7872 | |
84d1d650 L |
7873 | for (section = ibfd->sections; |
7874 | section != NULL; section = section->next) | |
7875 | { | |
7876 | /* We mark the output section so that we know it comes | |
7877 | from the input BFD. */ | |
7878 | osec = section->output_section; | |
7879 | if (osec) | |
0a1b45a2 | 7880 | osec->segment_mark = true; |
84d1d650 L |
7881 | |
7882 | /* Check if this section is covered by the segment. */ | |
7883 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7884 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7885 | { |
7886 | /* FIXME: Check if its output section is changed or | |
7887 | removed. What else do we need to check? */ | |
7888 | if (osec == NULL | |
7889 | || section->flags != osec->flags | |
7890 | || section->lma != osec->lma | |
7891 | || section->vma != osec->vma | |
7892 | || section->size != osec->size | |
7893 | || section->rawsize != osec->rawsize | |
7894 | || section->alignment_power != osec->alignment_power) | |
7895 | goto rewrite; | |
7896 | } | |
7897 | } | |
7898 | } | |
7899 | ||
cb3ff1e5 | 7900 | /* Check to see if any output section do not come from the |
84d1d650 L |
7901 | input BFD. */ |
7902 | for (section = obfd->sections; section != NULL; | |
7903 | section = section->next) | |
7904 | { | |
535b785f | 7905 | if (!section->segment_mark) |
84d1d650 L |
7906 | goto rewrite; |
7907 | else | |
0a1b45a2 | 7908 | section->segment_mark = false; |
84d1d650 L |
7909 | } |
7910 | ||
7911 | return copy_elf_program_header (ibfd, obfd); | |
7912 | } | |
7913 | ||
dc1e8a47 | 7914 | rewrite: |
c410035d | 7915 | maxpagesize = 0; |
f1d85785 L |
7916 | if (ibfd->xvec == obfd->xvec) |
7917 | { | |
7918 | /* When rewriting program header, set the output maxpagesize to | |
7919 | the maximum alignment of input PT_LOAD segments. */ | |
7920 | Elf_Internal_Phdr *segment; | |
7921 | unsigned int i; | |
7922 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
f1d85785 L |
7923 | |
7924 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7925 | i < num_segments; | |
7926 | i++, segment++) | |
7927 | if (segment->p_type == PT_LOAD | |
7928 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7929 | { |
7930 | /* PR 17512: file: f17299af. */ | |
7931 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7932 | /* xgettext:c-format */ |
2dcf00ce AM |
7933 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7934 | PRIx64 " is too large"), | |
7935 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7936 | else |
7937 | maxpagesize = segment->p_align; | |
7938 | } | |
f1d85785 | 7939 | } |
c410035d AM |
7940 | if (maxpagesize == 0) |
7941 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; | |
f1d85785 | 7942 | |
c410035d | 7943 | return rewrite_elf_program_header (ibfd, obfd, maxpagesize); |
84d1d650 L |
7944 | } |
7945 | ||
ccd2ec6a L |
7946 | /* Initialize private output section information from input section. */ |
7947 | ||
0a1b45a2 | 7948 | bool |
ccd2ec6a L |
7949 | _bfd_elf_init_private_section_data (bfd *ibfd, |
7950 | asection *isec, | |
7951 | bfd *obfd, | |
7952 | asection *osec, | |
7953 | struct bfd_link_info *link_info) | |
7954 | ||
7955 | { | |
7956 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0a1b45a2 AM |
7957 | bool final_link = (link_info != NULL |
7958 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7959 | |
7960 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7961 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7962 | return true; |
ccd2ec6a | 7963 | |
ba85c43e NC |
7964 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7965 | ||
8c803a2d AM |
7966 | /* If this is a known ABI section, ELF section type and flags may |
7967 | have been set up when OSEC was created. For normal sections we | |
7968 | allow the user to override the type and flags other than | |
7969 | SHF_MASKOS and SHF_MASKPROC. */ | |
7970 | if (elf_section_type (osec) == SHT_PROGBITS | |
7971 | || elf_section_type (osec) == SHT_NOTE | |
7972 | || elf_section_type (osec) == SHT_NOBITS) | |
7973 | elf_section_type (osec) = SHT_NULL; | |
7974 | /* For objcopy and relocatable link, copy the ELF section type from | |
7975 | the input file if the BFD section flags are the same. (If they | |
7976 | are different the user may be doing something like | |
7977 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7978 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7979 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7980 | && (osec->flags == isec->flags |
7981 | || (final_link | |
7982 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7983 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7984 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7985 | |
7986 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7987 | elf_section_flags (osec) = (elf_section_flags (isec) |
7988 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7989 | |
a91e1603 | 7990 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7991 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7992 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7993 | elf_section_data (osec)->this_hdr.sh_info |
7994 | = elf_section_data (isec)->this_hdr.sh_info; | |
7995 | ||
ccd2ec6a L |
7996 | /* Set things up for objcopy and relocatable link. The output |
7997 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7998 | to the input group members. Ignore linker created group section. | |
7999 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
8000 | if ((link_info == NULL |
8001 | || !link_info->resolve_section_groups) | |
8002 | && (elf_sec_group (isec) == NULL | |
8003 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 8004 | { |
7bdf4127 AB |
8005 | if (elf_section_flags (isec) & SHF_GROUP) |
8006 | elf_section_flags (osec) |= SHF_GROUP; | |
8007 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
8008 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
8009 | } |
8010 | ||
7bdf4127 AB |
8011 | /* If not decompress, preserve SHF_COMPRESSED. */ |
8012 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
8013 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
8014 | & SHF_COMPRESSED); | |
8015 | ||
ccd2ec6a L |
8016 | ihdr = &elf_section_data (isec)->this_hdr; |
8017 | ||
8018 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
8019 | don't use the output section of the linked-to section since it | |
8020 | may be NULL at this point. */ | |
8021 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
8022 | { | |
8023 | ohdr = &elf_section_data (osec)->this_hdr; | |
8024 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
8025 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
8026 | } | |
8027 | ||
8028 | osec->use_rela_p = isec->use_rela_p; | |
8029 | ||
0a1b45a2 | 8030 | return true; |
ccd2ec6a L |
8031 | } |
8032 | ||
252b5132 RH |
8033 | /* Copy private section information. This copies over the entsize |
8034 | field, and sometimes the info field. */ | |
8035 | ||
0a1b45a2 | 8036 | bool |
217aa764 AM |
8037 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
8038 | asection *isec, | |
8039 | bfd *obfd, | |
8040 | asection *osec) | |
252b5132 RH |
8041 | { |
8042 | Elf_Internal_Shdr *ihdr, *ohdr; | |
8043 | ||
8044 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
8045 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 8046 | return true; |
252b5132 | 8047 | |
252b5132 RH |
8048 | ihdr = &elf_section_data (isec)->this_hdr; |
8049 | ohdr = &elf_section_data (osec)->this_hdr; | |
8050 | ||
8051 | ohdr->sh_entsize = ihdr->sh_entsize; | |
8052 | ||
8053 | if (ihdr->sh_type == SHT_SYMTAB | |
8054 | || ihdr->sh_type == SHT_DYNSYM | |
8055 | || ihdr->sh_type == SHT_GNU_verneed | |
8056 | || ihdr->sh_type == SHT_GNU_verdef) | |
8057 | ohdr->sh_info = ihdr->sh_info; | |
8058 | ||
ccd2ec6a L |
8059 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
8060 | NULL); | |
252b5132 RH |
8061 | } |
8062 | ||
d0bf826b AM |
8063 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
8064 | necessary if we are removing either the SHT_GROUP section or any of | |
8065 | the group member sections. DISCARDED is the value that a section's | |
8066 | output_section has if the section will be discarded, NULL when this | |
8067 | function is called from objcopy, bfd_abs_section_ptr when called | |
8068 | from the linker. */ | |
80fccad2 | 8069 | |
0a1b45a2 | 8070 | bool |
d0bf826b | 8071 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 8072 | { |
30288845 AM |
8073 | asection *isec; |
8074 | ||
30288845 | 8075 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 8076 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
8077 | { |
8078 | asection *first = elf_next_in_group (isec); | |
8079 | asection *s = first; | |
d0bf826b AM |
8080 | bfd_size_type removed = 0; |
8081 | ||
30288845 AM |
8082 | while (s != NULL) |
8083 | { | |
415f38a6 AM |
8084 | /* If this member section is being output but the |
8085 | SHT_GROUP section is not, then clear the group info | |
8086 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
8087 | if (s->output_section != discarded |
8088 | && isec->output_section == discarded) | |
30288845 AM |
8089 | { |
8090 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
8091 | elf_group_name (s->output_section) = NULL; | |
8092 | } | |
3349112e | 8093 | else |
6e5e9d58 AM |
8094 | { |
8095 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
3349112e L |
8096 | if (s->output_section == discarded |
8097 | && isec->output_section != discarded) | |
8098 | { | |
8099 | /* Conversely, if the member section is not being | |
8100 | output but the SHT_GROUP section is, then adjust | |
8101 | its size. */ | |
8102 | removed += 4; | |
8103 | if (elf_sec->rel.hdr != NULL | |
8104 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
8105 | removed += 4; | |
8106 | if (elf_sec->rela.hdr != NULL | |
8107 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
8108 | removed += 4; | |
8109 | } | |
8110 | else | |
8111 | { | |
8112 | /* Also adjust for zero-sized relocation member | |
8113 | section. */ | |
8114 | if (elf_sec->rel.hdr != NULL | |
8115 | && elf_sec->rel.hdr->sh_size == 0) | |
8116 | removed += 4; | |
8117 | if (elf_sec->rela.hdr != NULL | |
8118 | && elf_sec->rela.hdr->sh_size == 0) | |
8119 | removed += 4; | |
8120 | } | |
6e5e9d58 | 8121 | } |
30288845 AM |
8122 | s = elf_next_in_group (s); |
8123 | if (s == first) | |
8124 | break; | |
8125 | } | |
d0bf826b AM |
8126 | if (removed != 0) |
8127 | { | |
8128 | if (discarded != NULL) | |
8129 | { | |
8130 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 8131 | adjust the input section size. */ |
d0bf826b AM |
8132 | if (isec->rawsize == 0) |
8133 | isec->rawsize = isec->size; | |
8134 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
8135 | if (isec->size <= 4) |
8136 | { | |
8137 | isec->size = 0; | |
8138 | isec->flags |= SEC_EXCLUDE; | |
8139 | } | |
d0bf826b | 8140 | } |
182ad375 | 8141 | else if (isec->output_section != NULL) |
d0bf826b AM |
8142 | { |
8143 | /* Adjust the output section size when called from | |
8144 | objcopy. */ | |
8145 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
8146 | if (isec->output_section->size <= 4) |
8147 | { | |
8148 | isec->output_section->size = 0; | |
8149 | isec->output_section->flags |= SEC_EXCLUDE; | |
8150 | } | |
d0bf826b AM |
8151 | } |
8152 | } | |
30288845 AM |
8153 | } |
8154 | ||
0a1b45a2 | 8155 | return true; |
80fccad2 BW |
8156 | } |
8157 | ||
d0bf826b AM |
8158 | /* Copy private header information. */ |
8159 | ||
0a1b45a2 | 8160 | bool |
d0bf826b AM |
8161 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) |
8162 | { | |
8163 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8164 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8165 | return true; |
d0bf826b AM |
8166 | |
8167 | /* Copy over private BFD data if it has not already been copied. | |
8168 | This must be done here, rather than in the copy_private_bfd_data | |
8169 | entry point, because the latter is called after the section | |
8170 | contents have been set, which means that the program headers have | |
8171 | already been worked out. */ | |
12bd6957 | 8172 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
8173 | { |
8174 | if (! copy_private_bfd_data (ibfd, obfd)) | |
0a1b45a2 | 8175 | return false; |
d0bf826b AM |
8176 | } |
8177 | ||
8178 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
8179 | } | |
8180 | ||
252b5132 RH |
8181 | /* Copy private symbol information. If this symbol is in a section |
8182 | which we did not map into a BFD section, try to map the section | |
8183 | index correctly. We use special macro definitions for the mapped | |
8184 | section indices; these definitions are interpreted by the | |
8185 | swap_out_syms function. */ | |
8186 | ||
9ad5cbcf AM |
8187 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
8188 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
8189 | #define MAP_STRTAB (SHN_HIOS + 3) | |
8190 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
8191 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 8192 | |
0a1b45a2 | 8193 | bool |
217aa764 AM |
8194 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
8195 | asymbol *isymarg, | |
8196 | bfd *obfd, | |
8197 | asymbol *osymarg) | |
252b5132 RH |
8198 | { |
8199 | elf_symbol_type *isym, *osym; | |
8200 | ||
8201 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8202 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8203 | return true; |
252b5132 | 8204 | |
c1229f84 AM |
8205 | isym = elf_symbol_from (isymarg); |
8206 | osym = elf_symbol_from (osymarg); | |
252b5132 RH |
8207 | |
8208 | if (isym != NULL | |
8424d8f5 | 8209 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
8210 | && osym != NULL |
8211 | && bfd_is_abs_section (isym->symbol.section)) | |
8212 | { | |
8213 | unsigned int shndx; | |
8214 | ||
8215 | shndx = isym->internal_elf_sym.st_shndx; | |
8216 | if (shndx == elf_onesymtab (ibfd)) | |
8217 | shndx = MAP_ONESYMTAB; | |
8218 | else if (shndx == elf_dynsymtab (ibfd)) | |
8219 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 8220 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 8221 | shndx = MAP_STRTAB; |
12bd6957 | 8222 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 8223 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 8224 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 8225 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
8226 | osym->internal_elf_sym.st_shndx = shndx; |
8227 | } | |
8228 | ||
0a1b45a2 | 8229 | return true; |
252b5132 RH |
8230 | } |
8231 | ||
8232 | /* Swap out the symbols. */ | |
8233 | ||
0a1b45a2 | 8234 | static bool |
217aa764 | 8235 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8236 | struct elf_strtab_hash **sttp, |
3d16b64e NA |
8237 | int relocatable_p, |
8238 | struct bfd_link_info *info) | |
252b5132 | 8239 | { |
9c5bfbb7 | 8240 | const struct elf_backend_data *bed; |
1f4361a7 | 8241 | unsigned int symcount; |
079e9a2f | 8242 | asymbol **syms; |
ef10c3ac | 8243 | struct elf_strtab_hash *stt; |
079e9a2f | 8244 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8245 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8246 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8247 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8248 | bfd_byte *outbound_syms; |
8249 | bfd_byte *outbound_shndx; | |
ef10c3ac | 8250 | unsigned long outbound_syms_index; |
1f4361a7 | 8251 | unsigned int idx; |
12bd6957 | 8252 | unsigned int num_locals; |
1f4361a7 | 8253 | size_t amt; |
0a1b45a2 | 8254 | bool name_local_sections; |
252b5132 | 8255 | |
12bd6957 | 8256 | if (!elf_map_symbols (abfd, &num_locals)) |
0a1b45a2 | 8257 | return false; |
252b5132 | 8258 | |
c044fabd | 8259 | /* Dump out the symtabs. */ |
ef10c3ac | 8260 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8261 | if (stt == NULL) |
0a1b45a2 | 8262 | return false; |
252b5132 | 8263 | |
079e9a2f AM |
8264 | bed = get_elf_backend_data (abfd); |
8265 | symcount = bfd_get_symcount (abfd); | |
8266 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8267 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8268 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8269 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8270 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8271 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8272 | |
8273 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8274 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8275 | ||
ef10c3ac | 8276 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8277 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8278 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8279 | { |
1f4361a7 | 8280 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac | 8281 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8282 | return false; |
ef10c3ac L |
8283 | } |
8284 | ||
1f4361a7 AM |
8285 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8286 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8287 | { |
1f4361a7 AM |
8288 | error_no_mem: |
8289 | bfd_set_error (bfd_error_no_memory); | |
8290 | error_return: | |
ef10c3ac | 8291 | free (symstrtab); |
1f4361a7 | 8292 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8293 | return false; |
5ed6aba4 | 8294 | } |
217aa764 | 8295 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8296 | outbound_syms_index = 0; |
252b5132 | 8297 | |
9ad5cbcf | 8298 | outbound_shndx = NULL; |
6a40cf0c NC |
8299 | |
8300 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8301 | { |
6a40cf0c NC |
8302 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8303 | if (symtab_shndx_hdr->sh_name != 0) | |
8304 | { | |
1f4361a7 AM |
8305 | if (_bfd_mul_overflow (symcount + 1, |
8306 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8307 | goto error_no_mem; | |
8308 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8309 | if (outbound_shndx == NULL) |
8310 | goto error_return; | |
5ed6aba4 | 8311 | |
6a40cf0c NC |
8312 | symtab_shndx_hdr->contents = outbound_shndx; |
8313 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8314 | symtab_shndx_hdr->sh_size = amt; | |
8315 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8316 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8317 | } | |
8318 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8319 | } |
8320 | ||
589e6347 | 8321 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8322 | { |
8323 | /* Fill in zeroth symbol and swap it out. */ | |
8324 | Elf_Internal_Sym sym; | |
8325 | sym.st_name = 0; | |
8326 | sym.st_value = 0; | |
8327 | sym.st_size = 0; | |
8328 | sym.st_info = 0; | |
8329 | sym.st_other = 0; | |
8330 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8331 | sym.st_target_internal = 0; |
ef10c3ac L |
8332 | symstrtab[0].sym = sym; |
8333 | symstrtab[0].dest_index = outbound_syms_index; | |
ef10c3ac | 8334 | outbound_syms_index++; |
079e9a2f | 8335 | } |
252b5132 | 8336 | |
174fd7f9 RS |
8337 | name_local_sections |
8338 | = (bed->elf_backend_name_local_section_symbols | |
8339 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8340 | ||
079e9a2f | 8341 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8342 | for (idx = 0; idx < symcount;) |
252b5132 | 8343 | { |
252b5132 | 8344 | Elf_Internal_Sym sym; |
079e9a2f AM |
8345 | bfd_vma value = syms[idx]->value; |
8346 | elf_symbol_type *type_ptr; | |
8347 | flagword flags = syms[idx]->flags; | |
8348 | int type; | |
252b5132 | 8349 | |
174fd7f9 RS |
8350 | if (!name_local_sections |
8351 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8352 | { |
8353 | /* Local section symbols have no name. */ | |
ef10c3ac | 8354 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8355 | } |
8356 | else | |
8357 | { | |
ef10c3ac L |
8358 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8359 | to get the final offset for st_name. */ | |
8360 | sym.st_name | |
8361 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
0a1b45a2 | 8362 | false); |
079e9a2f | 8363 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8364 | goto error_return; |
079e9a2f | 8365 | } |
252b5132 | 8366 | |
c1229f84 | 8367 | type_ptr = elf_symbol_from (syms[idx]); |
252b5132 | 8368 | |
079e9a2f AM |
8369 | if ((flags & BSF_SECTION_SYM) == 0 |
8370 | && bfd_is_com_section (syms[idx]->section)) | |
8371 | { | |
8372 | /* ELF common symbols put the alignment into the `value' field, | |
8373 | and the size into the `size' field. This is backwards from | |
8374 | how BFD handles it, so reverse it here. */ | |
8375 | sym.st_size = value; | |
8376 | if (type_ptr == NULL | |
8377 | || type_ptr->internal_elf_sym.st_value == 0) | |
8378 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8379 | else | |
8380 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8381 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8382 | (abfd, syms[idx]->section); | |
8383 | } | |
8384 | else | |
8385 | { | |
8386 | asection *sec = syms[idx]->section; | |
cb33740c | 8387 | unsigned int shndx; |
252b5132 | 8388 | |
079e9a2f AM |
8389 | if (sec->output_section) |
8390 | { | |
8391 | value += sec->output_offset; | |
8392 | sec = sec->output_section; | |
8393 | } | |
589e6347 | 8394 | |
079e9a2f AM |
8395 | /* Don't add in the section vma for relocatable output. */ |
8396 | if (! relocatable_p) | |
8397 | value += sec->vma; | |
8398 | sym.st_value = value; | |
8399 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8400 | ||
8401 | if (bfd_is_abs_section (sec) | |
8402 | && type_ptr != NULL | |
8403 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8404 | { | |
8405 | /* This symbol is in a real ELF section which we did | |
8406 | not create as a BFD section. Undo the mapping done | |
8407 | by copy_private_symbol_data. */ | |
8408 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8409 | switch (shndx) | |
8410 | { | |
8411 | case MAP_ONESYMTAB: | |
8412 | shndx = elf_onesymtab (abfd); | |
8413 | break; | |
8414 | case MAP_DYNSYMTAB: | |
8415 | shndx = elf_dynsymtab (abfd); | |
8416 | break; | |
8417 | case MAP_STRTAB: | |
12bd6957 | 8418 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8419 | break; |
8420 | case MAP_SHSTRTAB: | |
12bd6957 | 8421 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8422 | break; |
9ad5cbcf | 8423 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8424 | if (elf_symtab_shndx_list (abfd)) |
8425 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8426 | break; |
00e49dff NC |
8427 | case SHN_COMMON: |
8428 | case SHN_ABS: | |
15bc576a | 8429 | shndx = SHN_ABS; |
079e9a2f | 8430 | break; |
00e49dff NC |
8431 | default: |
8432 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8433 | { | |
8434 | if (bed->symbol_section_index) | |
8435 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8436 | /* Otherwise just leave the index alone. */ | |
8437 | } | |
8438 | else | |
8439 | { | |
8440 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8441 | _bfd_error_handler (_("%pB: \ | |
8442 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8443 | abfd, shndx); | |
8444 | shndx = SHN_ABS; | |
8445 | } | |
8446 | break; | |
079e9a2f AM |
8447 | } |
8448 | } | |
8449 | else | |
8450 | { | |
8451 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8452 | |
cb33740c | 8453 | if (shndx == SHN_BAD) |
079e9a2f AM |
8454 | { |
8455 | asection *sec2; | |
8456 | ||
8457 | /* Writing this would be a hell of a lot easier if | |
8458 | we had some decent documentation on bfd, and | |
8459 | knew what to expect of the library, and what to | |
8460 | demand of applications. For example, it | |
8461 | appears that `objcopy' might not set the | |
8462 | section of a symbol to be a section that is | |
8463 | actually in the output file. */ | |
8464 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8465 | if (sec2 != NULL) |
8466 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8467 | if (shndx == SHN_BAD) | |
589e6347 | 8468 | { |
695344c0 | 8469 | /* xgettext:c-format */ |
9793eb77 AM |
8470 | _bfd_error_handler |
8471 | (_("unable to find equivalent output section" | |
8472 | " for symbol '%s' from section '%s'"), | |
8473 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8474 | sec->name); | |
811072d8 | 8475 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8476 | goto error_return; |
589e6347 | 8477 | } |
079e9a2f AM |
8478 | } |
8479 | } | |
252b5132 | 8480 | |
079e9a2f AM |
8481 | sym.st_shndx = shndx; |
8482 | } | |
252b5132 | 8483 | |
13ae64f3 JJ |
8484 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8485 | type = STT_TLS; | |
d8045f23 NC |
8486 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8487 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8488 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8489 | type = STT_FUNC; |
8490 | else if ((flags & BSF_OBJECT) != 0) | |
8491 | type = STT_OBJECT; | |
d9352518 DB |
8492 | else if ((flags & BSF_RELC) != 0) |
8493 | type = STT_RELC; | |
8494 | else if ((flags & BSF_SRELC) != 0) | |
8495 | type = STT_SRELC; | |
079e9a2f AM |
8496 | else |
8497 | type = STT_NOTYPE; | |
252b5132 | 8498 | |
13ae64f3 JJ |
8499 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8500 | type = STT_TLS; | |
8501 | ||
589e6347 | 8502 | /* Processor-specific types. */ |
079e9a2f AM |
8503 | if (type_ptr != NULL |
8504 | && bed->elf_backend_get_symbol_type) | |
8505 | type = ((*bed->elf_backend_get_symbol_type) | |
8506 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8507 | |
079e9a2f AM |
8508 | if (flags & BSF_SECTION_SYM) |
8509 | { | |
8510 | if (flags & BSF_GLOBAL) | |
8511 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8512 | else | |
8513 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8514 | } | |
8515 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8516 | { |
b8871f35 L |
8517 | if (type != STT_TLS) |
8518 | { | |
8519 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8520 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8521 | ? STT_COMMON : STT_OBJECT); | |
8522 | else | |
8523 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8524 | ? STT_COMMON : STT_OBJECT); | |
8525 | } | |
8526 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8527 | } |
079e9a2f AM |
8528 | else if (bfd_is_und_section (syms[idx]->section)) |
8529 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8530 | ? STB_WEAK | |
8531 | : STB_GLOBAL), | |
8532 | type); | |
8533 | else if (flags & BSF_FILE) | |
8534 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8535 | else | |
8536 | { | |
8537 | int bind = STB_LOCAL; | |
252b5132 | 8538 | |
079e9a2f AM |
8539 | if (flags & BSF_LOCAL) |
8540 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8541 | else if (flags & BSF_GNU_UNIQUE) |
8542 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8543 | else if (flags & BSF_WEAK) |
8544 | bind = STB_WEAK; | |
8545 | else if (flags & BSF_GLOBAL) | |
8546 | bind = STB_GLOBAL; | |
252b5132 | 8547 | |
079e9a2f AM |
8548 | sym.st_info = ELF_ST_INFO (bind, type); |
8549 | } | |
252b5132 | 8550 | |
079e9a2f | 8551 | if (type_ptr != NULL) |
35fc36a8 RS |
8552 | { |
8553 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8554 | sym.st_target_internal | |
8555 | = type_ptr->internal_elf_sym.st_target_internal; | |
8556 | } | |
079e9a2f | 8557 | else |
35fc36a8 RS |
8558 | { |
8559 | sym.st_other = 0; | |
8560 | sym.st_target_internal = 0; | |
8561 | } | |
252b5132 | 8562 | |
ef10c3ac L |
8563 | idx++; |
8564 | symstrtab[idx].sym = sym; | |
8565 | symstrtab[idx].dest_index = outbound_syms_index; | |
ef10c3ac L |
8566 | |
8567 | outbound_syms_index++; | |
ef10c3ac L |
8568 | } |
8569 | ||
8570 | /* Finalize the .strtab section. */ | |
8571 | _bfd_elf_strtab_finalize (stt); | |
8572 | ||
8573 | /* Swap out the .strtab section. */ | |
8574 | for (idx = 0; idx <= symcount; idx++) | |
8575 | { | |
8576 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8577 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8578 | elfsym->sym.st_name = 0; | |
8579 | else | |
8580 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8581 | elfsym->sym.st_name); | |
3d16b64e NA |
8582 | if (info && info->callbacks->ctf_new_symbol) |
8583 | info->callbacks->ctf_new_symbol (elfsym->dest_index, | |
8584 | &elfsym->sym); | |
8585 | ||
8586 | /* Inform the linker of the addition of this symbol. */ | |
8587 | ||
ef10c3ac L |
8588 | bed->s->swap_symbol_out (abfd, &elfsym->sym, |
8589 | (outbound_syms | |
8590 | + (elfsym->dest_index | |
8591 | * bed->s->sizeof_sym)), | |
b03b65e2 AM |
8592 | NPTR_ADD (outbound_shndx, |
8593 | (elfsym->dest_index | |
8594 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8595 | } |
ef10c3ac | 8596 | free (symstrtab); |
252b5132 | 8597 | |
079e9a2f | 8598 | *sttp = stt; |
ef10c3ac | 8599 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8600 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8601 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8602 | symstrtab_hdr->sh_addr = 0; |
8603 | symstrtab_hdr->sh_entsize = 0; | |
8604 | symstrtab_hdr->sh_link = 0; | |
8605 | symstrtab_hdr->sh_info = 0; | |
8606 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8607 | |
0a1b45a2 | 8608 | return true; |
252b5132 RH |
8609 | } |
8610 | ||
8611 | /* Return the number of bytes required to hold the symtab vector. | |
8612 | ||
8613 | Note that we base it on the count plus 1, since we will null terminate | |
8614 | the vector allocated based on this size. However, the ELF symbol table | |
8615 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8616 | ||
8617 | long | |
217aa764 | 8618 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8619 | { |
3a551c7a | 8620 | bfd_size_type symcount; |
252b5132 RH |
8621 | long symtab_size; |
8622 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8623 | ||
8624 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8625 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8626 | { |
8627 | bfd_set_error (bfd_error_file_too_big); | |
8628 | return -1; | |
8629 | } | |
b5f386d5 AM |
8630 | symtab_size = symcount * (sizeof (asymbol *)); |
8631 | if (symcount == 0) | |
8632 | symtab_size = sizeof (asymbol *); | |
8633 | else if (!bfd_write_p (abfd)) | |
8634 | { | |
8635 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8636 | ||
8637 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8638 | { | |
8639 | bfd_set_error (bfd_error_file_truncated); | |
8640 | return -1; | |
8641 | } | |
8642 | } | |
252b5132 RH |
8643 | |
8644 | return symtab_size; | |
8645 | } | |
8646 | ||
8647 | long | |
217aa764 | 8648 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8649 | { |
3a551c7a | 8650 | bfd_size_type symcount; |
252b5132 RH |
8651 | long symtab_size; |
8652 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8653 | ||
8654 | if (elf_dynsymtab (abfd) == 0) | |
8655 | { | |
8656 | bfd_set_error (bfd_error_invalid_operation); | |
8657 | return -1; | |
8658 | } | |
8659 | ||
8660 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8661 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8662 | { |
8663 | bfd_set_error (bfd_error_file_too_big); | |
8664 | return -1; | |
8665 | } | |
b5f386d5 AM |
8666 | symtab_size = symcount * (sizeof (asymbol *)); |
8667 | if (symcount == 0) | |
8668 | symtab_size = sizeof (asymbol *); | |
8669 | else if (!bfd_write_p (abfd)) | |
8670 | { | |
8671 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8672 | ||
8673 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8674 | { | |
8675 | bfd_set_error (bfd_error_file_truncated); | |
8676 | return -1; | |
8677 | } | |
8678 | } | |
252b5132 RH |
8679 | |
8680 | return symtab_size; | |
8681 | } | |
8682 | ||
8683 | long | |
3c568b8a | 8684 | _bfd_elf_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 8685 | { |
b5f386d5 | 8686 | if (asect->reloc_count != 0 && !bfd_write_p (abfd)) |
3c568b8a AM |
8687 | { |
8688 | /* Sanity check reloc section size. */ | |
8689 | struct bfd_elf_section_data *d = elf_section_data (asect); | |
8690 | Elf_Internal_Shdr *rel_hdr = &d->this_hdr; | |
8691 | bfd_size_type ext_rel_size = rel_hdr->sh_size; | |
8692 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8693 | ||
8694 | if (filesize != 0 && ext_rel_size > filesize) | |
8695 | { | |
8696 | bfd_set_error (bfd_error_file_truncated); | |
8697 | return -1; | |
8698 | } | |
8699 | } | |
8700 | ||
242a1159 | 8701 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8702 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8703 | { | |
8704 | bfd_set_error (bfd_error_file_too_big); | |
8705 | return -1; | |
8706 | } | |
242a1159 | 8707 | #endif |
5cfe19e5 | 8708 | return (asect->reloc_count + 1L) * sizeof (arelent *); |
252b5132 RH |
8709 | } |
8710 | ||
8711 | /* Canonicalize the relocs. */ | |
8712 | ||
8713 | long | |
217aa764 AM |
8714 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8715 | sec_ptr section, | |
8716 | arelent **relptr, | |
8717 | asymbol **symbols) | |
252b5132 RH |
8718 | { |
8719 | arelent *tblptr; | |
8720 | unsigned int i; | |
9c5bfbb7 | 8721 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8722 | |
0a1b45a2 | 8723 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, false)) |
252b5132 RH |
8724 | return -1; |
8725 | ||
8726 | tblptr = section->relocation; | |
8727 | for (i = 0; i < section->reloc_count; i++) | |
8728 | *relptr++ = tblptr++; | |
8729 | ||
8730 | *relptr = NULL; | |
8731 | ||
8732 | return section->reloc_count; | |
8733 | } | |
8734 | ||
8735 | long | |
6cee3f79 | 8736 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8737 | { |
9c5bfbb7 | 8738 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8739 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, false); |
252b5132 RH |
8740 | |
8741 | if (symcount >= 0) | |
ed48ec2e | 8742 | abfd->symcount = symcount; |
252b5132 RH |
8743 | return symcount; |
8744 | } | |
8745 | ||
8746 | long | |
217aa764 AM |
8747 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8748 | asymbol **allocation) | |
252b5132 | 8749 | { |
9c5bfbb7 | 8750 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8751 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, true); |
1f70368c DJ |
8752 | |
8753 | if (symcount >= 0) | |
ed48ec2e | 8754 | abfd->dynsymcount = symcount; |
1f70368c | 8755 | return symcount; |
252b5132 RH |
8756 | } |
8757 | ||
8615f3f2 AM |
8758 | /* Return the size required for the dynamic reloc entries. Any loadable |
8759 | section that was actually installed in the BFD, and has type SHT_REL | |
8760 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8761 | dynamic reloc section. */ | |
252b5132 RH |
8762 | |
8763 | long | |
217aa764 | 8764 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8765 | { |
3c568b8a | 8766 | bfd_size_type count, ext_rel_size; |
252b5132 RH |
8767 | asection *s; |
8768 | ||
8769 | if (elf_dynsymtab (abfd) == 0) | |
8770 | { | |
8771 | bfd_set_error (bfd_error_invalid_operation); | |
8772 | return -1; | |
8773 | } | |
8774 | ||
3a551c7a | 8775 | count = 1; |
3c568b8a | 8776 | ext_rel_size = 0; |
252b5132 | 8777 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8778 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8779 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8780 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a | 8781 | { |
3c568b8a AM |
8782 | ext_rel_size += s->size; |
8783 | if (ext_rel_size < s->size) | |
8784 | { | |
8785 | bfd_set_error (bfd_error_file_truncated); | |
8786 | return -1; | |
8787 | } | |
3a551c7a AM |
8788 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; |
8789 | if (count > LONG_MAX / sizeof (arelent *)) | |
8790 | { | |
8791 | bfd_set_error (bfd_error_file_too_big); | |
8792 | return -1; | |
8793 | } | |
8794 | } | |
b5f386d5 | 8795 | if (count > 1 && !bfd_write_p (abfd)) |
3c568b8a AM |
8796 | { |
8797 | /* Sanity check reloc section sizes. */ | |
8798 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8799 | if (filesize != 0 && ext_rel_size > filesize) | |
8800 | { | |
8801 | bfd_set_error (bfd_error_file_truncated); | |
8802 | return -1; | |
8803 | } | |
8804 | } | |
3a551c7a | 8805 | return count * sizeof (arelent *); |
252b5132 RH |
8806 | } |
8807 | ||
8615f3f2 AM |
8808 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8809 | dynamic relocations as a single block, although they are actually | |
8810 | associated with particular sections; the interface, which was | |
8811 | designed for SunOS style shared libraries, expects that there is only | |
8812 | one set of dynamic relocs. Any loadable section that was actually | |
8813 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8814 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8815 | |
8816 | long | |
217aa764 AM |
8817 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8818 | arelent **storage, | |
8819 | asymbol **syms) | |
252b5132 | 8820 | { |
0a1b45a2 | 8821 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
252b5132 RH |
8822 | asection *s; |
8823 | long ret; | |
8824 | ||
8825 | if (elf_dynsymtab (abfd) == 0) | |
8826 | { | |
8827 | bfd_set_error (bfd_error_invalid_operation); | |
8828 | return -1; | |
8829 | } | |
8830 | ||
8831 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8832 | ret = 0; | |
8833 | for (s = abfd->sections; s != NULL; s = s->next) | |
8834 | { | |
266b05cf | 8835 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8836 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8837 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8838 | { | |
8839 | arelent *p; | |
8840 | long count, i; | |
8841 | ||
0a1b45a2 | 8842 | if (! (*slurp_relocs) (abfd, s, syms, true)) |
252b5132 | 8843 | return -1; |
eea6121a | 8844 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8845 | p = s->relocation; |
8846 | for (i = 0; i < count; i++) | |
8847 | *storage++ = p++; | |
8848 | ret += count; | |
8849 | } | |
8850 | } | |
8851 | ||
8852 | *storage = NULL; | |
8853 | ||
8854 | return ret; | |
8855 | } | |
8856 | \f | |
8857 | /* Read in the version information. */ | |
8858 | ||
0a1b45a2 AM |
8859 | bool |
8860 | _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver) | |
252b5132 RH |
8861 | { |
8862 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8863 | unsigned int freeidx = 0; |
1f4361a7 | 8864 | size_t amt; |
fc0e6df6 PB |
8865 | |
8866 | if (elf_dynverref (abfd) != 0) | |
8867 | { | |
8868 | Elf_Internal_Shdr *hdr; | |
8869 | Elf_External_Verneed *everneed; | |
8870 | Elf_Internal_Verneed *iverneed; | |
8871 | unsigned int i; | |
d0fb9a8d | 8872 | bfd_byte *contents_end; |
fc0e6df6 PB |
8873 | |
8874 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8875 | ||
bd61e135 AM |
8876 | if (hdr->sh_info == 0 |
8877 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8878 | { |
dc1e8a47 | 8879 | error_return_bad_verref: |
4eca0228 | 8880 | _bfd_error_handler |
871b3ab2 | 8881 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8882 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8883 | error_return_verref: |
d0fb9a8d JJ |
8884 | elf_tdata (abfd)->verref = NULL; |
8885 | elf_tdata (abfd)->cverrefs = 0; | |
8886 | goto error_return; | |
8887 | } | |
601a03ba | 8888 | |
2bb3687b AM |
8889 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8890 | goto error_return_verref; | |
8891 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8892 | if (contents == NULL) | |
d0fb9a8d | 8893 | goto error_return_verref; |
fc0e6df6 | 8894 | |
1f4361a7 AM |
8895 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8896 | { | |
8897 | bfd_set_error (bfd_error_file_too_big); | |
8898 | goto error_return_verref; | |
8899 | } | |
8900 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8901 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8902 | goto error_return_verref; |
8903 | ||
8904 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8905 | == sizeof (Elf_External_Vernaux)); | |
8906 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8907 | everneed = (Elf_External_Verneed *) contents; |
8908 | iverneed = elf_tdata (abfd)->verref; | |
8909 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8910 | { | |
8911 | Elf_External_Vernaux *evernaux; | |
8912 | Elf_Internal_Vernaux *ivernaux; | |
8913 | unsigned int j; | |
8914 | ||
8915 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8916 | ||
8917 | iverneed->vn_bfd = abfd; | |
8918 | ||
8919 | iverneed->vn_filename = | |
8920 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8921 | iverneed->vn_file); | |
8922 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8923 | goto error_return_bad_verref; |
fc0e6df6 | 8924 | |
d0fb9a8d JJ |
8925 | if (iverneed->vn_cnt == 0) |
8926 | iverneed->vn_auxptr = NULL; | |
8927 | else | |
8928 | { | |
1f4361a7 AM |
8929 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8930 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8931 | { | |
8932 | bfd_set_error (bfd_error_file_too_big); | |
8933 | goto error_return_verref; | |
8934 | } | |
a50b1753 | 8935 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8936 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8937 | if (iverneed->vn_auxptr == NULL) |
8938 | goto error_return_verref; | |
8939 | } | |
8940 | ||
8941 | if (iverneed->vn_aux | |
8942 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8943 | goto error_return_bad_verref; |
fc0e6df6 PB |
8944 | |
8945 | evernaux = ((Elf_External_Vernaux *) | |
8946 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8947 | ivernaux = iverneed->vn_auxptr; | |
8948 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8949 | { | |
8950 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8951 | ||
8952 | ivernaux->vna_nodename = | |
8953 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8954 | ivernaux->vna_name); | |
8955 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8956 | goto error_return_bad_verref; |
fc0e6df6 | 8957 | |
25ff461f AM |
8958 | if (ivernaux->vna_other > freeidx) |
8959 | freeidx = ivernaux->vna_other; | |
8960 | ||
8961 | ivernaux->vna_nextptr = NULL; | |
8962 | if (ivernaux->vna_next == 0) | |
8963 | { | |
8964 | iverneed->vn_cnt = j + 1; | |
8965 | break; | |
8966 | } | |
fc0e6df6 PB |
8967 | if (j + 1 < iverneed->vn_cnt) |
8968 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8969 | |
d0fb9a8d JJ |
8970 | if (ivernaux->vna_next |
8971 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8972 | goto error_return_bad_verref; |
d0fb9a8d | 8973 | |
fc0e6df6 PB |
8974 | evernaux = ((Elf_External_Vernaux *) |
8975 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8976 | } |
8977 | ||
25ff461f AM |
8978 | iverneed->vn_nextref = NULL; |
8979 | if (iverneed->vn_next == 0) | |
8980 | break; | |
fc0e6df6 PB |
8981 | if (i + 1 < hdr->sh_info) |
8982 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8983 | |
d0fb9a8d JJ |
8984 | if (iverneed->vn_next |
8985 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8986 | goto error_return_bad_verref; |
d0fb9a8d | 8987 | |
fc0e6df6 PB |
8988 | everneed = ((Elf_External_Verneed *) |
8989 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8990 | } | |
25ff461f | 8991 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8992 | |
8993 | free (contents); | |
8994 | contents = NULL; | |
8995 | } | |
252b5132 RH |
8996 | |
8997 | if (elf_dynverdef (abfd) != 0) | |
8998 | { | |
8999 | Elf_Internal_Shdr *hdr; | |
9000 | Elf_External_Verdef *everdef; | |
9001 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
9002 | Elf_Internal_Verdef *iverdefarr; |
9003 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 9004 | unsigned int i; |
062e2358 | 9005 | unsigned int maxidx; |
d0fb9a8d | 9006 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
9007 | |
9008 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
9009 | ||
601a03ba AM |
9010 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
9011 | { | |
9012 | error_return_bad_verdef: | |
4eca0228 | 9013 | _bfd_error_handler |
871b3ab2 | 9014 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
9015 | bfd_set_error (bfd_error_bad_value); |
9016 | error_return_verdef: | |
9017 | elf_tdata (abfd)->verdef = NULL; | |
9018 | elf_tdata (abfd)->cverdefs = 0; | |
9019 | goto error_return; | |
9020 | } | |
9021 | ||
2bb3687b | 9022 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 9023 | goto error_return_verdef; |
2bb3687b AM |
9024 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
9025 | if (contents == NULL) | |
601a03ba | 9026 | goto error_return_verdef; |
d0fb9a8d JJ |
9027 | |
9028 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
9029 | >= sizeof (Elf_External_Verdaux)); | |
9030 | contents_end_def = contents + hdr->sh_size | |
9031 | - sizeof (Elf_External_Verdef); | |
9032 | contents_end_aux = contents + hdr->sh_size | |
9033 | - sizeof (Elf_External_Verdaux); | |
9034 | ||
f631889e UD |
9035 | /* We know the number of entries in the section but not the maximum |
9036 | index. Therefore we have to run through all entries and find | |
9037 | the maximum. */ | |
252b5132 | 9038 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
9039 | maxidx = 0; |
9040 | for (i = 0; i < hdr->sh_info; ++i) | |
9041 | { | |
9042 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
9043 | ||
601a03ba AM |
9044 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
9045 | goto error_return_bad_verdef; | |
062e2358 AM |
9046 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
9047 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 9048 | |
25ff461f AM |
9049 | if (iverdefmem.vd_next == 0) |
9050 | break; | |
9051 | ||
d0fb9a8d JJ |
9052 | if (iverdefmem.vd_next |
9053 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 9054 | goto error_return_bad_verdef; |
d0fb9a8d | 9055 | |
f631889e UD |
9056 | everdef = ((Elf_External_Verdef *) |
9057 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
9058 | } | |
9059 | ||
fc0e6df6 PB |
9060 | if (default_imported_symver) |
9061 | { | |
9062 | if (freeidx > maxidx) | |
9063 | maxidx = ++freeidx; | |
9064 | else | |
9065 | freeidx = ++maxidx; | |
9066 | } | |
1f4361a7 AM |
9067 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
9068 | { | |
9069 | bfd_set_error (bfd_error_file_too_big); | |
9070 | goto error_return_verdef; | |
9071 | } | |
9072 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 9073 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 9074 | goto error_return_verdef; |
f631889e UD |
9075 | |
9076 | elf_tdata (abfd)->cverdefs = maxidx; | |
9077 | ||
9078 | everdef = (Elf_External_Verdef *) contents; | |
9079 | iverdefarr = elf_tdata (abfd)->verdef; | |
9080 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
9081 | { |
9082 | Elf_External_Verdaux *everdaux; | |
9083 | Elf_Internal_Verdaux *iverdaux; | |
9084 | unsigned int j; | |
9085 | ||
f631889e UD |
9086 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
9087 | ||
d0fb9a8d | 9088 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 9089 | goto error_return_bad_verdef; |
d0fb9a8d | 9090 | |
f631889e | 9091 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 9092 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
9093 | |
9094 | iverdef->vd_bfd = abfd; | |
9095 | ||
d0fb9a8d JJ |
9096 | if (iverdef->vd_cnt == 0) |
9097 | iverdef->vd_auxptr = NULL; | |
9098 | else | |
9099 | { | |
1f4361a7 AM |
9100 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
9101 | sizeof (Elf_Internal_Verdaux), &amt)) | |
9102 | { | |
9103 | bfd_set_error (bfd_error_file_too_big); | |
9104 | goto error_return_verdef; | |
9105 | } | |
a50b1753 | 9106 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 9107 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
9108 | if (iverdef->vd_auxptr == NULL) |
9109 | goto error_return_verdef; | |
9110 | } | |
9111 | ||
9112 | if (iverdef->vd_aux | |
9113 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 9114 | goto error_return_bad_verdef; |
252b5132 RH |
9115 | |
9116 | everdaux = ((Elf_External_Verdaux *) | |
9117 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
9118 | iverdaux = iverdef->vd_auxptr; | |
9119 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
9120 | { | |
9121 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
9122 | ||
9123 | iverdaux->vda_nodename = | |
9124 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
9125 | iverdaux->vda_name); | |
9126 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 9127 | goto error_return_bad_verdef; |
252b5132 | 9128 | |
25ff461f AM |
9129 | iverdaux->vda_nextptr = NULL; |
9130 | if (iverdaux->vda_next == 0) | |
9131 | { | |
9132 | iverdef->vd_cnt = j + 1; | |
9133 | break; | |
9134 | } | |
252b5132 RH |
9135 | if (j + 1 < iverdef->vd_cnt) |
9136 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 9137 | |
d0fb9a8d JJ |
9138 | if (iverdaux->vda_next |
9139 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 9140 | goto error_return_bad_verdef; |
d0fb9a8d | 9141 | |
252b5132 RH |
9142 | everdaux = ((Elf_External_Verdaux *) |
9143 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
9144 | } | |
9145 | ||
595bce75 | 9146 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
9147 | if (iverdef->vd_cnt) |
9148 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 9149 | |
25ff461f AM |
9150 | iverdef->vd_nextdef = NULL; |
9151 | if (iverdef->vd_next == 0) | |
9152 | break; | |
d0fb9a8d | 9153 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 9154 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
9155 | |
9156 | everdef = ((Elf_External_Verdef *) | |
9157 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
9158 | } | |
9159 | ||
9160 | free (contents); | |
9161 | contents = NULL; | |
9162 | } | |
fc0e6df6 | 9163 | else if (default_imported_symver) |
252b5132 | 9164 | { |
fc0e6df6 PB |
9165 | if (freeidx < 3) |
9166 | freeidx = 3; | |
9167 | else | |
9168 | freeidx++; | |
252b5132 | 9169 | |
1f4361a7 AM |
9170 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
9171 | { | |
9172 | bfd_set_error (bfd_error_file_too_big); | |
9173 | goto error_return; | |
9174 | } | |
9175 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 9176 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
9177 | goto error_return; |
9178 | ||
fc0e6df6 PB |
9179 | elf_tdata (abfd)->cverdefs = freeidx; |
9180 | } | |
252b5132 | 9181 | |
fc0e6df6 PB |
9182 | /* Create a default version based on the soname. */ |
9183 | if (default_imported_symver) | |
9184 | { | |
9185 | Elf_Internal_Verdef *iverdef; | |
9186 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 9187 | |
5bb3703f | 9188 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 9189 | |
fc0e6df6 PB |
9190 | iverdef->vd_version = VER_DEF_CURRENT; |
9191 | iverdef->vd_flags = 0; | |
9192 | iverdef->vd_ndx = freeidx; | |
9193 | iverdef->vd_cnt = 1; | |
252b5132 | 9194 | |
fc0e6df6 | 9195 | iverdef->vd_bfd = abfd; |
252b5132 | 9196 | |
fc0e6df6 PB |
9197 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
9198 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 9199 | goto error_return_verdef; |
fc0e6df6 | 9200 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
9201 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
9202 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
9203 | if (iverdef->vd_auxptr == NULL) |
9204 | goto error_return_verdef; | |
252b5132 | 9205 | |
fc0e6df6 PB |
9206 | iverdaux = iverdef->vd_auxptr; |
9207 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
9208 | } |
9209 | ||
0a1b45a2 | 9210 | return true; |
252b5132 RH |
9211 | |
9212 | error_return: | |
c9594989 | 9213 | free (contents); |
0a1b45a2 | 9214 | return false; |
252b5132 RH |
9215 | } |
9216 | \f | |
9217 | asymbol * | |
217aa764 | 9218 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
9219 | { |
9220 | elf_symbol_type *newsym; | |
9221 | ||
7a6e0d89 | 9222 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
9223 | if (!newsym) |
9224 | return NULL; | |
201159ec NC |
9225 | newsym->symbol.the_bfd = abfd; |
9226 | return &newsym->symbol; | |
252b5132 RH |
9227 | } |
9228 | ||
9229 | void | |
217aa764 AM |
9230 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
9231 | asymbol *symbol, | |
9232 | symbol_info *ret) | |
252b5132 RH |
9233 | { |
9234 | bfd_symbol_info (symbol, ret); | |
9235 | } | |
9236 | ||
9237 | /* Return whether a symbol name implies a local symbol. Most targets | |
9238 | use this function for the is_local_label_name entry point, but some | |
9239 | override it. */ | |
9240 | ||
0a1b45a2 | 9241 | bool |
217aa764 AM |
9242 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
9243 | const char *name) | |
252b5132 RH |
9244 | { |
9245 | /* Normal local symbols start with ``.L''. */ | |
9246 | if (name[0] == '.' && name[1] == 'L') | |
0a1b45a2 | 9247 | return true; |
252b5132 RH |
9248 | |
9249 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
9250 | DWARF debugging symbols starting with ``..''. */ | |
9251 | if (name[0] == '.' && name[1] == '.') | |
0a1b45a2 | 9252 | return true; |
252b5132 RH |
9253 | |
9254 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
9255 | emitting DWARF debugging output. I suspect this is actually a | |
9256 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
9257 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
9258 | underscore to be emitted on some ELF targets). For ease of use, | |
9259 | we treat such symbols as local. */ | |
9260 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
0a1b45a2 | 9261 | return true; |
252b5132 | 9262 | |
b1fa9dd6 NC |
9263 | /* Treat assembler generated fake symbols, dollar local labels and |
9264 | forward-backward labels (aka local labels) as locals. | |
9265 | These labels have the form: | |
9266 | ||
07d6d2b8 | 9267 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
9268 | |
9269 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
9270 | ||
9271 | Versions which start with .L will have already been matched above, | |
9272 | so we only need to match the rest. */ | |
9273 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
9274 | { | |
0a1b45a2 | 9275 | bool ret = false; |
b1fa9dd6 NC |
9276 | const char * p; |
9277 | char c; | |
9278 | ||
9279 | for (p = name + 2; (c = *p); p++) | |
9280 | { | |
9281 | if (c == 1 || c == 2) | |
9282 | { | |
9283 | if (c == 1 && p == name + 2) | |
9284 | /* A fake symbol. */ | |
0a1b45a2 | 9285 | return true; |
b1fa9dd6 NC |
9286 | |
9287 | /* FIXME: We are being paranoid here and treating symbols like | |
9288 | L0^Bfoo as if there were non-local, on the grounds that the | |
9289 | assembler will never generate them. But can any symbol | |
9290 | containing an ASCII value in the range 1-31 ever be anything | |
9291 | other than some kind of local ? */ | |
0a1b45a2 | 9292 | ret = true; |
b1fa9dd6 NC |
9293 | } |
9294 | ||
9295 | if (! ISDIGIT (c)) | |
9296 | { | |
0a1b45a2 | 9297 | ret = false; |
b1fa9dd6 NC |
9298 | break; |
9299 | } | |
9300 | } | |
9301 | return ret; | |
9302 | } | |
ffa54770 | 9303 | |
0a1b45a2 | 9304 | return false; |
252b5132 RH |
9305 | } |
9306 | ||
9307 | alent * | |
217aa764 AM |
9308 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9309 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9310 | { |
9311 | abort (); | |
9312 | return NULL; | |
9313 | } | |
9314 | ||
0a1b45a2 | 9315 | bool |
217aa764 AM |
9316 | _bfd_elf_set_arch_mach (bfd *abfd, |
9317 | enum bfd_architecture arch, | |
9318 | unsigned long machine) | |
252b5132 RH |
9319 | { |
9320 | /* If this isn't the right architecture for this backend, and this | |
9321 | isn't the generic backend, fail. */ | |
9322 | if (arch != get_elf_backend_data (abfd)->arch | |
9323 | && arch != bfd_arch_unknown | |
9324 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
0a1b45a2 | 9325 | return false; |
252b5132 RH |
9326 | |
9327 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9328 | } | |
9329 | ||
d1fad7c6 NC |
9330 | /* Find the nearest line to a particular section and offset, |
9331 | for error reporting. */ | |
9332 | ||
0a1b45a2 | 9333 | bool |
217aa764 | 9334 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9335 | asymbol **symbols, |
fb167eb2 | 9336 | asection *section, |
217aa764 AM |
9337 | bfd_vma offset, |
9338 | const char **filename_ptr, | |
9339 | const char **functionname_ptr, | |
fb167eb2 AM |
9340 | unsigned int *line_ptr, |
9341 | unsigned int *discriminator_ptr) | |
6e7a29c7 AM |
9342 | { |
9343 | return _bfd_elf_find_nearest_line_with_alt (abfd, NULL, symbols, section, | |
9344 | offset, filename_ptr, | |
9345 | functionname_ptr, line_ptr, | |
9346 | discriminator_ptr); | |
9347 | } | |
9348 | ||
9349 | /* Find the nearest line to a particular section and offset, | |
9350 | for error reporting. ALT_BFD representing a .gnu_debugaltlink file | |
9351 | can be optionally specified. */ | |
9352 | ||
9353 | bool | |
9354 | _bfd_elf_find_nearest_line_with_alt (bfd *abfd, | |
9355 | const char *alt_filename, | |
9356 | asymbol **symbols, | |
9357 | asection *section, | |
9358 | bfd_vma offset, | |
9359 | const char **filename_ptr, | |
9360 | const char **functionname_ptr, | |
9361 | unsigned int *line_ptr, | |
9362 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9363 | { |
0a1b45a2 | 9364 | bool found; |
d1fad7c6 | 9365 | |
6e7a29c7 AM |
9366 | if (_bfd_dwarf2_find_nearest_line_with_alt (abfd, alt_filename, symbols, NULL, |
9367 | section, offset, filename_ptr, | |
9368 | functionname_ptr, line_ptr, | |
9369 | discriminator_ptr, | |
9370 | dwarf_debug_sections, | |
9371 | &elf_tdata (abfd)->dwarf2_find_line_info)) | |
0a1b45a2 | 9372 | return true; |
e7679060 AM |
9373 | |
9374 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9375 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9376 | { |
9377 | if (!*functionname_ptr) | |
e00e8198 AM |
9378 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9379 | *filename_ptr ? NULL : filename_ptr, | |
9380 | functionname_ptr); | |
0a1b45a2 | 9381 | return true; |
d1fad7c6 NC |
9382 | } |
9383 | ||
9384 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9385 | &found, filename_ptr, |
9386 | functionname_ptr, line_ptr, | |
9387 | &elf_tdata (abfd)->line_info)) | |
0a1b45a2 | 9388 | return false; |
dc43ada5 | 9389 | if (found && (*functionname_ptr || *line_ptr)) |
0a1b45a2 | 9390 | return true; |
d1fad7c6 NC |
9391 | |
9392 | if (symbols == NULL) | |
0a1b45a2 | 9393 | return false; |
d1fad7c6 | 9394 | |
e00e8198 AM |
9395 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9396 | filename_ptr, functionname_ptr)) | |
0a1b45a2 | 9397 | return false; |
d1fad7c6 | 9398 | |
252b5132 | 9399 | *line_ptr = 0; |
0a1b45a2 | 9400 | return true; |
252b5132 RH |
9401 | } |
9402 | ||
5420f73d L |
9403 | /* Find the line for a symbol. */ |
9404 | ||
0a1b45a2 | 9405 | bool |
5420f73d L |
9406 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, |
9407 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9408 | { |
11c6a7c6 | 9409 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
fb167eb2 AM |
9410 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9411 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9412 | dwarf_debug_sections, |
11c6a7c6 | 9413 | &tdata->dwarf2_find_line_info); |
5420f73d L |
9414 | } |
9415 | ||
4ab527b0 FF |
9416 | /* After a call to bfd_find_nearest_line, successive calls to |
9417 | bfd_find_inliner_info can be used to get source information about | |
9418 | each level of function inlining that terminated at the address | |
9419 | passed to bfd_find_nearest_line. Currently this is only supported | |
9420 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9421 | ||
0a1b45a2 | 9422 | bool |
4ab527b0 FF |
9423 | _bfd_elf_find_inliner_info (bfd *abfd, |
9424 | const char **filename_ptr, | |
9425 | const char **functionname_ptr, | |
9426 | unsigned int *line_ptr) | |
9427 | { | |
11c6a7c6 AM |
9428 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9429 | return _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9430 | functionname_ptr, line_ptr, | |
9431 | &tdata->dwarf2_find_line_info); | |
4ab527b0 FF |
9432 | } |
9433 | ||
252b5132 | 9434 | int |
a6b96beb | 9435 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9436 | { |
8ded5a0f AM |
9437 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9438 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9439 | |
0e1862bb | 9440 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9441 | { |
12bd6957 | 9442 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9443 | |
62d7a5f6 AM |
9444 | if (phdr_size == (bfd_size_type) -1) |
9445 | { | |
9446 | struct elf_segment_map *m; | |
9447 | ||
9448 | phdr_size = 0; | |
12bd6957 | 9449 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9450 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9451 | |
62d7a5f6 AM |
9452 | if (phdr_size == 0) |
9453 | phdr_size = get_program_header_size (abfd, info); | |
9454 | } | |
8ded5a0f | 9455 | |
12bd6957 | 9456 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9457 | ret += phdr_size; |
9458 | } | |
9459 | ||
252b5132 RH |
9460 | return ret; |
9461 | } | |
9462 | ||
0a1b45a2 | 9463 | bool |
217aa764 AM |
9464 | _bfd_elf_set_section_contents (bfd *abfd, |
9465 | sec_ptr section, | |
0f867abe | 9466 | const void *location, |
217aa764 AM |
9467 | file_ptr offset, |
9468 | bfd_size_type count) | |
252b5132 RH |
9469 | { |
9470 | Elf_Internal_Shdr *hdr; | |
9471 | ||
9472 | if (! abfd->output_has_begun | |
217aa764 | 9473 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 9474 | return false; |
252b5132 | 9475 | |
0ce398f1 | 9476 | if (!count) |
0a1b45a2 | 9477 | return true; |
0ce398f1 | 9478 | |
252b5132 | 9479 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9480 | if (hdr->sh_offset == (file_ptr) -1) |
9481 | { | |
a0dcf297 NC |
9482 | unsigned char *contents; |
9483 | ||
1ff6de03 NA |
9484 | if (bfd_section_is_ctf (section)) |
9485 | /* Nothing to do with this section: the contents are generated | |
9486 | later. */ | |
0a1b45a2 | 9487 | return true; |
1ff6de03 | 9488 | |
a0dcf297 NC |
9489 | if ((section->flags & SEC_ELF_COMPRESS) == 0) |
9490 | { | |
9491 | _bfd_error_handler | |
11c6a7c6 AM |
9492 | (_("%pB:%pA: error: attempting to write" |
9493 | " into an unallocated compressed section"), | |
a0dcf297 NC |
9494 | abfd, section); |
9495 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9496 | return false; |
a0dcf297 | 9497 | } |
11c6a7c6 | 9498 | |
a0dcf297 NC |
9499 | if ((offset + count) > hdr->sh_size) |
9500 | { | |
9501 | _bfd_error_handler | |
11c6a7c6 AM |
9502 | (_("%pB:%pA: error: attempting to write" |
9503 | " over the end of the section"), | |
a0dcf297 NC |
9504 | abfd, section); |
9505 | ||
9506 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9507 | return false; |
a0dcf297 NC |
9508 | } |
9509 | ||
9510 | contents = hdr->contents; | |
9511 | if (contents == NULL) | |
9512 | { | |
9513 | _bfd_error_handler | |
11c6a7c6 AM |
9514 | (_("%pB:%pA: error: attempting to write" |
9515 | " section into an empty buffer"), | |
a0dcf297 NC |
9516 | abfd, section); |
9517 | ||
9518 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9519 | return false; |
a0dcf297 NC |
9520 | } |
9521 | ||
0ce398f1 | 9522 | memcpy (contents + offset, location, count); |
0a1b45a2 | 9523 | return true; |
0ce398f1 | 9524 | } |
a0dcf297 | 9525 | |
169692ce PA |
9526 | return _bfd_generic_set_section_contents (abfd, section, |
9527 | location, offset, count); | |
252b5132 RH |
9528 | } |
9529 | ||
0a1b45a2 | 9530 | bool |
217aa764 AM |
9531 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9532 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9533 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9534 | { |
9535 | abort (); | |
0a1b45a2 | 9536 | return false; |
252b5132 RH |
9537 | } |
9538 | ||
252b5132 RH |
9539 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9540 | ||
0a1b45a2 | 9541 | bool |
217aa764 | 9542 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9543 | { |
c044fabd | 9544 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9545 | |
9546 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9547 | { | |
9548 | bfd_reloc_code_real_type code; | |
9549 | reloc_howto_type *howto; | |
9550 | ||
9551 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9552 | equivalent ELF reloc. */ |
252b5132 RH |
9553 | |
9554 | if (areloc->howto->pc_relative) | |
9555 | { | |
9556 | switch (areloc->howto->bitsize) | |
9557 | { | |
9558 | case 8: | |
9559 | code = BFD_RELOC_8_PCREL; | |
9560 | break; | |
9561 | case 12: | |
9562 | code = BFD_RELOC_12_PCREL; | |
9563 | break; | |
9564 | case 16: | |
9565 | code = BFD_RELOC_16_PCREL; | |
9566 | break; | |
9567 | case 24: | |
9568 | code = BFD_RELOC_24_PCREL; | |
9569 | break; | |
9570 | case 32: | |
9571 | code = BFD_RELOC_32_PCREL; | |
9572 | break; | |
9573 | case 64: | |
9574 | code = BFD_RELOC_64_PCREL; | |
9575 | break; | |
9576 | default: | |
9577 | goto fail; | |
9578 | } | |
9579 | ||
9580 | howto = bfd_reloc_type_lookup (abfd, code); | |
9581 | ||
94698d01 | 9582 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9583 | { |
9584 | if (howto->pcrel_offset) | |
9585 | areloc->addend += areloc->address; | |
9586 | else | |
9587 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9588 | } | |
9589 | } | |
9590 | else | |
9591 | { | |
9592 | switch (areloc->howto->bitsize) | |
9593 | { | |
9594 | case 8: | |
9595 | code = BFD_RELOC_8; | |
9596 | break; | |
9597 | case 14: | |
9598 | code = BFD_RELOC_14; | |
9599 | break; | |
9600 | case 16: | |
9601 | code = BFD_RELOC_16; | |
9602 | break; | |
9603 | case 26: | |
9604 | code = BFD_RELOC_26; | |
9605 | break; | |
9606 | case 32: | |
9607 | code = BFD_RELOC_32; | |
9608 | break; | |
9609 | case 64: | |
9610 | code = BFD_RELOC_64; | |
9611 | break; | |
9612 | default: | |
9613 | goto fail; | |
9614 | } | |
9615 | ||
9616 | howto = bfd_reloc_type_lookup (abfd, code); | |
9617 | } | |
9618 | ||
9619 | if (howto) | |
9620 | areloc->howto = howto; | |
9621 | else | |
9622 | goto fail; | |
9623 | } | |
9624 | ||
0a1b45a2 | 9625 | return true; |
252b5132 RH |
9626 | |
9627 | fail: | |
0aa13fee AM |
9628 | /* xgettext:c-format */ |
9629 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9630 | abfd, areloc->howto->name); | |
9aea1e31 | 9631 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 9632 | return false; |
252b5132 RH |
9633 | } |
9634 | ||
0a1b45a2 | 9635 | bool |
217aa764 | 9636 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9637 | { |
d9071b0c | 9638 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
0ed18fa1 AM |
9639 | if (tdata != NULL |
9640 | && (bfd_get_format (abfd) == bfd_object | |
9641 | || bfd_get_format (abfd) == bfd_core)) | |
252b5132 | 9642 | { |
c0355132 | 9643 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9644 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9645 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9646 | } |
9647 | ||
9648 | return _bfd_generic_close_and_cleanup (abfd); | |
9649 | } | |
9650 | ||
9651 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9652 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9653 | range-checking to interfere. There is nothing else to do in processing | |
9654 | this reloc. */ | |
9655 | ||
9656 | bfd_reloc_status_type | |
217aa764 AM |
9657 | _bfd_elf_rel_vtable_reloc_fn |
9658 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9659 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9660 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9661 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9662 | { |
9663 | return bfd_reloc_ok; | |
9664 | } | |
252b5132 RH |
9665 | \f |
9666 | /* Elf core file support. Much of this only works on native | |
9667 | toolchains, since we rely on knowing the | |
9668 | machine-dependent procfs structure in order to pick | |
c044fabd | 9669 | out details about the corefile. */ |
252b5132 RH |
9670 | |
9671 | #ifdef HAVE_SYS_PROCFS_H | |
9672 | # include <sys/procfs.h> | |
9673 | #endif | |
9674 | ||
261b8d08 PA |
9675 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9676 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9677 | |
9678 | static int | |
217aa764 | 9679 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9680 | { |
261b8d08 PA |
9681 | int pid; |
9682 | ||
228e534f | 9683 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9684 | if (pid == 0) |
228e534f | 9685 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9686 | |
9687 | return pid; | |
252b5132 RH |
9688 | } |
9689 | ||
11c6a7c6 AM |
9690 | /* If there isn't a section called NAME, make one, using data from |
9691 | SECT. Note, this function will generate a reference to NAME, so | |
9692 | you shouldn't deallocate or overwrite it. */ | |
252b5132 | 9693 | |
0a1b45a2 | 9694 | static bool |
217aa764 | 9695 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9696 | { |
c044fabd | 9697 | asection *sect2; |
252b5132 RH |
9698 | |
9699 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
0a1b45a2 | 9700 | return true; |
252b5132 | 9701 | |
117ed4f8 | 9702 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9703 | if (sect2 == NULL) |
0a1b45a2 | 9704 | return false; |
252b5132 | 9705 | |
eea6121a | 9706 | sect2->size = sect->size; |
252b5132 | 9707 | sect2->filepos = sect->filepos; |
252b5132 | 9708 | sect2->alignment_power = sect->alignment_power; |
0a1b45a2 | 9709 | return true; |
252b5132 RH |
9710 | } |
9711 | ||
bb0082d6 AM |
9712 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9713 | actually creates up to two pseudosections: | |
9714 | - For the single-threaded case, a section named NAME, unless | |
9715 | such a section already exists. | |
9716 | - For the multi-threaded case, a section named "NAME/PID", where | |
9717 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9718 | Both pseudosections have identical contents. */ |
0a1b45a2 | 9719 | bool |
217aa764 AM |
9720 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9721 | char *name, | |
9722 | size_t size, | |
9723 | ufile_ptr filepos) | |
bb0082d6 AM |
9724 | { |
9725 | char buf[100]; | |
9726 | char *threaded_name; | |
d4c88bbb | 9727 | size_t len; |
bb0082d6 AM |
9728 | asection *sect; |
9729 | ||
9730 | /* Build the section name. */ | |
9731 | ||
9732 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9733 | len = strlen (buf) + 1; |
a50b1753 | 9734 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9735 | if (threaded_name == NULL) |
0a1b45a2 | 9736 | return false; |
d4c88bbb | 9737 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9738 | |
117ed4f8 AM |
9739 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9740 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9741 | if (sect == NULL) |
0a1b45a2 | 9742 | return false; |
eea6121a | 9743 | sect->size = size; |
bb0082d6 | 9744 | sect->filepos = filepos; |
bb0082d6 AM |
9745 | sect->alignment_power = 2; |
9746 | ||
936e320b | 9747 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9748 | } |
9749 | ||
0a1b45a2 | 9750 | static bool |
58e07198 CZ |
9751 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, |
9752 | size_t offs) | |
9753 | { | |
9754 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9755 | SEC_HAS_CONTENTS); | |
9756 | ||
9757 | if (sect == NULL) | |
0a1b45a2 | 9758 | return false; |
58e07198 CZ |
9759 | |
9760 | sect->size = note->descsz - offs; | |
9761 | sect->filepos = note->descpos + offs; | |
9762 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9763 | ||
0a1b45a2 | 9764 | return true; |
58e07198 CZ |
9765 | } |
9766 | ||
252b5132 | 9767 | /* prstatus_t exists on: |
4a938328 | 9768 | solaris 2.5+ |
252b5132 RH |
9769 | linux 2.[01] + glibc |
9770 | unixware 4.2 | |
9771 | */ | |
9772 | ||
9773 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9774 | |
0a1b45a2 | 9775 | static bool |
217aa764 | 9776 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9777 | { |
eea6121a | 9778 | size_t size; |
7ee38065 | 9779 | int offset; |
252b5132 | 9780 | |
4a938328 MS |
9781 | if (note->descsz == sizeof (prstatus_t)) |
9782 | { | |
9783 | prstatus_t prstat; | |
252b5132 | 9784 | |
eea6121a | 9785 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9786 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9787 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9788 | |
fa49d224 NC |
9789 | /* Do not overwrite the core signal if it |
9790 | has already been set by another thread. */ | |
228e534f AM |
9791 | if (elf_tdata (abfd)->core->signal == 0) |
9792 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9793 | if (elf_tdata (abfd)->core->pid == 0) | |
9794 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9795 | |
4a938328 MS |
9796 | /* pr_who exists on: |
9797 | solaris 2.5+ | |
9798 | unixware 4.2 | |
9799 | pr_who doesn't exist on: | |
9800 | linux 2.[01] | |
9801 | */ | |
252b5132 | 9802 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9803 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9804 | #else |
228e534f | 9805 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9806 | #endif |
4a938328 | 9807 | } |
7ee38065 | 9808 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9809 | else if (note->descsz == sizeof (prstatus32_t)) |
9810 | { | |
9811 | /* 64-bit host, 32-bit corefile */ | |
9812 | prstatus32_t prstat; | |
9813 | ||
eea6121a | 9814 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9815 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9816 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9817 | ||
fa49d224 NC |
9818 | /* Do not overwrite the core signal if it |
9819 | has already been set by another thread. */ | |
228e534f AM |
9820 | if (elf_tdata (abfd)->core->signal == 0) |
9821 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9822 | if (elf_tdata (abfd)->core->pid == 0) | |
9823 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9824 | |
9825 | /* pr_who exists on: | |
9826 | solaris 2.5+ | |
9827 | unixware 4.2 | |
9828 | pr_who doesn't exist on: | |
9829 | linux 2.[01] | |
9830 | */ | |
7ee38065 | 9831 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9832 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9833 | #else |
228e534f | 9834 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9835 | #endif |
9836 | } | |
7ee38065 | 9837 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9838 | else |
9839 | { | |
9840 | /* Fail - we don't know how to handle any other | |
9841 | note size (ie. data object type). */ | |
0a1b45a2 | 9842 | return true; |
4a938328 | 9843 | } |
252b5132 | 9844 | |
bb0082d6 | 9845 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9846 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9847 | size, note->descpos + offset); |
252b5132 RH |
9848 | } |
9849 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9850 | ||
bb0082d6 | 9851 | /* Create a pseudosection containing the exact contents of NOTE. */ |
0a1b45a2 | 9852 | static bool |
217aa764 AM |
9853 | elfcore_make_note_pseudosection (bfd *abfd, |
9854 | char *name, | |
9855 | Elf_Internal_Note *note) | |
252b5132 | 9856 | { |
936e320b AM |
9857 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9858 | note->descsz, note->descpos); | |
252b5132 RH |
9859 | } |
9860 | ||
ff08c6bb JB |
9861 | /* There isn't a consistent prfpregset_t across platforms, |
9862 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9863 | data structure apart. */ |
9864 | ||
0a1b45a2 | 9865 | static bool |
217aa764 | 9866 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9867 | { |
9868 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9869 | } | |
9870 | ||
ff08c6bb | 9871 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9872 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9873 | literally. */ |
c044fabd | 9874 | |
0a1b45a2 | 9875 | static bool |
217aa764 | 9876 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9877 | { |
9878 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9879 | } | |
9880 | ||
4339cae0 L |
9881 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9882 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9883 | contents literally. */ | |
9884 | ||
0a1b45a2 | 9885 | static bool |
4339cae0 L |
9886 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) |
9887 | { | |
9888 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9889 | } | |
9890 | ||
0a1b45a2 | 9891 | static bool |
97753bd5 AM |
9892 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) |
9893 | { | |
9894 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9895 | } | |
9896 | ||
0a1b45a2 | 9897 | static bool |
89eeb0bc LM |
9898 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) |
9899 | { | |
9900 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9901 | } | |
97753bd5 | 9902 | |
0a1b45a2 | 9903 | static bool |
cb2366c1 EBM |
9904 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) |
9905 | { | |
9906 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9907 | } | |
9908 | ||
0a1b45a2 | 9909 | static bool |
cb2366c1 EBM |
9910 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) |
9911 | { | |
9912 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9913 | } | |
9914 | ||
0a1b45a2 | 9915 | static bool |
cb2366c1 EBM |
9916 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) |
9917 | { | |
9918 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9919 | } | |
9920 | ||
0a1b45a2 | 9921 | static bool |
cb2366c1 EBM |
9922 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) |
9923 | { | |
9924 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9925 | } | |
9926 | ||
0a1b45a2 | 9927 | static bool |
cb2366c1 EBM |
9928 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) |
9929 | { | |
9930 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9931 | } | |
9932 | ||
0a1b45a2 | 9933 | static bool |
cb2366c1 EBM |
9934 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) |
9935 | { | |
9936 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9937 | } | |
9938 | ||
0a1b45a2 | 9939 | static bool |
cb2366c1 EBM |
9940 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) |
9941 | { | |
9942 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9943 | } | |
9944 | ||
0a1b45a2 | 9945 | static bool |
cb2366c1 EBM |
9946 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) |
9947 | { | |
9948 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9949 | } | |
9950 | ||
0a1b45a2 | 9951 | static bool |
cb2366c1 EBM |
9952 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) |
9953 | { | |
9954 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9955 | } | |
9956 | ||
0a1b45a2 | 9957 | static bool |
cb2366c1 EBM |
9958 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) |
9959 | { | |
9960 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9961 | } | |
9962 | ||
0a1b45a2 | 9963 | static bool |
cb2366c1 EBM |
9964 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) |
9965 | { | |
9966 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9967 | } | |
9968 | ||
0a1b45a2 | 9969 | static bool |
cb2366c1 EBM |
9970 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) |
9971 | { | |
9972 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9973 | } | |
9974 | ||
0a1b45a2 | 9975 | static bool |
cb2366c1 EBM |
9976 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) |
9977 | { | |
9978 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9979 | } | |
9980 | ||
0a1b45a2 | 9981 | static bool |
0675e188 UW |
9982 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) |
9983 | { | |
9984 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9985 | } | |
9986 | ||
0a1b45a2 | 9987 | static bool |
d7eeb400 MS |
9988 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) |
9989 | { | |
9990 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9991 | } | |
9992 | ||
0a1b45a2 | 9993 | static bool |
d7eeb400 MS |
9994 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) |
9995 | { | |
9996 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9997 | } | |
9998 | ||
0a1b45a2 | 9999 | static bool |
d7eeb400 MS |
10000 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) |
10001 | { | |
10002 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
10003 | } | |
10004 | ||
0a1b45a2 | 10005 | static bool |
d7eeb400 MS |
10006 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) |
10007 | { | |
10008 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
10009 | } | |
10010 | ||
0a1b45a2 | 10011 | static bool |
d7eeb400 MS |
10012 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) |
10013 | { | |
10014 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
10015 | } | |
10016 | ||
0a1b45a2 | 10017 | static bool |
355b81d9 UW |
10018 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) |
10019 | { | |
10020 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
10021 | } | |
10022 | ||
0a1b45a2 | 10023 | static bool |
355b81d9 UW |
10024 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) |
10025 | { | |
10026 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
10027 | } | |
10028 | ||
0a1b45a2 | 10029 | static bool |
abb3f6cc NC |
10030 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) |
10031 | { | |
10032 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
10033 | } | |
10034 | ||
0a1b45a2 | 10035 | static bool |
4ef9f41a AA |
10036 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) |
10037 | { | |
10038 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
10039 | } | |
10040 | ||
0a1b45a2 | 10041 | static bool |
4ef9f41a AA |
10042 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) |
10043 | { | |
10044 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
10045 | } | |
10046 | ||
0a1b45a2 | 10047 | static bool |
88ab90e8 AA |
10048 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) |
10049 | { | |
10050 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
10051 | } | |
10052 | ||
0a1b45a2 | 10053 | static bool |
88ab90e8 AA |
10054 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) |
10055 | { | |
10056 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
10057 | } | |
10058 | ||
0a1b45a2 | 10059 | static bool |
faa9a424 UW |
10060 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) |
10061 | { | |
10062 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
10063 | } | |
10064 | ||
0a1b45a2 | 10065 | static bool |
652451f8 YZ |
10066 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) |
10067 | { | |
10068 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
10069 | } | |
10070 | ||
0a1b45a2 | 10071 | static bool |
652451f8 YZ |
10072 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) |
10073 | { | |
10074 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
10075 | } | |
10076 | ||
0a1b45a2 | 10077 | static bool |
652451f8 YZ |
10078 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) |
10079 | { | |
10080 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
10081 | } | |
10082 | ||
0a1b45a2 | 10083 | static bool |
ad1cc4e4 AH |
10084 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) |
10085 | { | |
10086 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
10087 | } | |
10088 | ||
0a1b45a2 | 10089 | static bool |
e6c3b5bf AH |
10090 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) |
10091 | { | |
10092 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
10093 | } | |
10094 | ||
f0bbe8ba LM |
10095 | static bool |
10096 | elfcore_grok_aarch_mte (bfd *abfd, Elf_Internal_Note *note) | |
10097 | { | |
10098 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-mte", | |
10099 | note); | |
10100 | } | |
10101 | ||
0a1b45a2 | 10102 | static bool |
27456742 AK |
10103 | elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) |
10104 | { | |
10105 | return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); | |
10106 | } | |
10107 | ||
db6092f3 AB |
10108 | /* Convert NOTE into a bfd_section called ".reg-riscv-csr". Return TRUE if |
10109 | successful otherwise, return FALSE. */ | |
10110 | ||
0a1b45a2 | 10111 | static bool |
db6092f3 AB |
10112 | elfcore_grok_riscv_csr (bfd *abfd, Elf_Internal_Note *note) |
10113 | { | |
10114 | return elfcore_make_note_pseudosection (abfd, ".reg-riscv-csr", note); | |
10115 | } | |
10116 | ||
b63a5e38 AB |
10117 | /* Convert NOTE into a bfd_section called ".gdb-tdesc". Return TRUE if |
10118 | successful otherwise, return FALSE. */ | |
10119 | ||
0a1b45a2 | 10120 | static bool |
b63a5e38 AB |
10121 | elfcore_grok_gdb_tdesc (bfd *abfd, Elf_Internal_Note *note) |
10122 | { | |
10123 | return elfcore_make_note_pseudosection (abfd, ".gdb-tdesc", note); | |
10124 | } | |
10125 | ||
e214f8db | 10126 | static bool |
10127 | elfcore_grok_loongarch_cpucfg (bfd *abfd, Elf_Internal_Note *note) | |
10128 | { | |
10129 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-cpucfg", note); | |
10130 | } | |
10131 | ||
10132 | static bool | |
10133 | elfcore_grok_loongarch_lbt (bfd *abfd, Elf_Internal_Note *note) | |
10134 | { | |
10135 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lbt", note); | |
10136 | } | |
10137 | ||
10138 | static bool | |
10139 | elfcore_grok_loongarch_lsx (bfd *abfd, Elf_Internal_Note *note) | |
10140 | { | |
10141 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lsx", note); | |
10142 | } | |
10143 | ||
10144 | static bool | |
10145 | elfcore_grok_loongarch_lasx (bfd *abfd, Elf_Internal_Note *note) | |
10146 | { | |
10147 | return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lasx", note); | |
10148 | } | |
10149 | ||
252b5132 | 10150 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 10151 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 10152 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
10153 | typedef prpsinfo32_t elfcore_psinfo32_t; |
10154 | #endif | |
252b5132 RH |
10155 | #endif |
10156 | ||
10157 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 10158 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 10159 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
10160 | typedef psinfo32_t elfcore_psinfo32_t; |
10161 | #endif | |
252b5132 RH |
10162 | #endif |
10163 | ||
252b5132 RH |
10164 | /* return a malloc'ed copy of a string at START which is at |
10165 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 10166 | the copy will always have a terminating '\0'. */ |
252b5132 | 10167 | |
936e320b | 10168 | char * |
217aa764 | 10169 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 10170 | { |
dc810e39 | 10171 | char *dups; |
a50b1753 | 10172 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 10173 | size_t len; |
252b5132 RH |
10174 | |
10175 | if (end == NULL) | |
10176 | len = max; | |
10177 | else | |
10178 | len = end - start; | |
10179 | ||
a50b1753 | 10180 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 10181 | if (dups == NULL) |
252b5132 RH |
10182 | return NULL; |
10183 | ||
dc810e39 AM |
10184 | memcpy (dups, start, len); |
10185 | dups[len] = '\0'; | |
252b5132 | 10186 | |
dc810e39 | 10187 | return dups; |
252b5132 RH |
10188 | } |
10189 | ||
bb0082d6 | 10190 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
0a1b45a2 | 10191 | static bool |
217aa764 | 10192 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10193 | { |
4a938328 MS |
10194 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
10195 | { | |
10196 | elfcore_psinfo_t psinfo; | |
252b5132 | 10197 | |
7ee38065 | 10198 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10199 | |
335e41d4 | 10200 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 10201 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10202 | #endif |
228e534f | 10203 | elf_tdata (abfd)->core->program |
936e320b AM |
10204 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10205 | sizeof (psinfo.pr_fname)); | |
252b5132 | 10206 | |
228e534f | 10207 | elf_tdata (abfd)->core->command |
936e320b AM |
10208 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10209 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 10210 | } |
7ee38065 | 10211 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
10212 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
10213 | { | |
10214 | /* 64-bit host, 32-bit corefile */ | |
10215 | elfcore_psinfo32_t psinfo; | |
10216 | ||
7ee38065 | 10217 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10218 | |
335e41d4 | 10219 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 10220 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10221 | #endif |
228e534f | 10222 | elf_tdata (abfd)->core->program |
936e320b AM |
10223 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10224 | sizeof (psinfo.pr_fname)); | |
4a938328 | 10225 | |
228e534f | 10226 | elf_tdata (abfd)->core->command |
936e320b AM |
10227 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10228 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
10229 | } |
10230 | #endif | |
10231 | ||
10232 | else | |
10233 | { | |
10234 | /* Fail - we don't know how to handle any other | |
10235 | note size (ie. data object type). */ | |
0a1b45a2 | 10236 | return true; |
4a938328 | 10237 | } |
252b5132 RH |
10238 | |
10239 | /* Note that for some reason, a spurious space is tacked | |
10240 | onto the end of the args in some (at least one anyway) | |
c044fabd | 10241 | implementations, so strip it off if it exists. */ |
252b5132 RH |
10242 | |
10243 | { | |
228e534f | 10244 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
10245 | int n = strlen (command); |
10246 | ||
10247 | if (0 < n && command[n - 1] == ' ') | |
10248 | command[n - 1] = '\0'; | |
10249 | } | |
10250 | ||
0a1b45a2 | 10251 | return true; |
252b5132 RH |
10252 | } |
10253 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
10254 | ||
252b5132 | 10255 | #if defined (HAVE_PSTATUS_T) |
0a1b45a2 | 10256 | static bool |
217aa764 | 10257 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10258 | { |
f572a39d AM |
10259 | if (note->descsz == sizeof (pstatus_t) |
10260 | #if defined (HAVE_PXSTATUS_T) | |
10261 | || note->descsz == sizeof (pxstatus_t) | |
10262 | #endif | |
10263 | ) | |
4a938328 MS |
10264 | { |
10265 | pstatus_t pstat; | |
252b5132 | 10266 | |
4a938328 | 10267 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10268 | |
228e534f | 10269 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 10270 | } |
7ee38065 | 10271 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
10272 | else if (note->descsz == sizeof (pstatus32_t)) |
10273 | { | |
10274 | /* 64-bit host, 32-bit corefile */ | |
10275 | pstatus32_t pstat; | |
252b5132 | 10276 | |
4a938328 | 10277 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10278 | |
228e534f | 10279 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
10280 | } |
10281 | #endif | |
252b5132 RH |
10282 | /* Could grab some more details from the "representative" |
10283 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 10284 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 10285 | |
0a1b45a2 | 10286 | return true; |
252b5132 RH |
10287 | } |
10288 | #endif /* defined (HAVE_PSTATUS_T) */ | |
10289 | ||
252b5132 | 10290 | #if defined (HAVE_LWPSTATUS_T) |
0a1b45a2 | 10291 | static bool |
217aa764 | 10292 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
10293 | { |
10294 | lwpstatus_t lwpstat; | |
10295 | char buf[100]; | |
c044fabd | 10296 | char *name; |
d4c88bbb | 10297 | size_t len; |
c044fabd | 10298 | asection *sect; |
252b5132 | 10299 | |
f572a39d AM |
10300 | if (note->descsz != sizeof (lwpstat) |
10301 | #if defined (HAVE_LWPXSTATUS_T) | |
10302 | && note->descsz != sizeof (lwpxstatus_t) | |
10303 | #endif | |
10304 | ) | |
0a1b45a2 | 10305 | return true; |
252b5132 RH |
10306 | |
10307 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
10308 | ||
228e534f | 10309 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
10310 | /* Do not overwrite the core signal if it has already been set by |
10311 | another thread. */ | |
228e534f AM |
10312 | if (elf_tdata (abfd)->core->signal == 0) |
10313 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 10314 | |
c044fabd | 10315 | /* Make a ".reg/999" section. */ |
252b5132 RH |
10316 | |
10317 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10318 | len = strlen (buf) + 1; |
217aa764 | 10319 | name = bfd_alloc (abfd, len); |
252b5132 | 10320 | if (name == NULL) |
0a1b45a2 | 10321 | return false; |
d4c88bbb | 10322 | memcpy (name, buf, len); |
252b5132 | 10323 | |
117ed4f8 | 10324 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10325 | if (sect == NULL) |
0a1b45a2 | 10326 | return false; |
252b5132 RH |
10327 | |
10328 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10329 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
10330 | sect->filepos = note->descpos |
10331 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
10332 | #endif | |
10333 | ||
10334 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 10335 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
10336 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
10337 | #endif | |
10338 | ||
252b5132 RH |
10339 | sect->alignment_power = 2; |
10340 | ||
10341 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
0a1b45a2 | 10342 | return false; |
252b5132 RH |
10343 | |
10344 | /* Make a ".reg2/999" section */ | |
10345 | ||
10346 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10347 | len = strlen (buf) + 1; |
217aa764 | 10348 | name = bfd_alloc (abfd, len); |
252b5132 | 10349 | if (name == NULL) |
0a1b45a2 | 10350 | return false; |
d4c88bbb | 10351 | memcpy (name, buf, len); |
252b5132 | 10352 | |
117ed4f8 | 10353 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10354 | if (sect == NULL) |
0a1b45a2 | 10355 | return false; |
252b5132 RH |
10356 | |
10357 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10358 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
10359 | sect->filepos = note->descpos |
10360 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
10361 | #endif | |
10362 | ||
10363 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 10364 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
10365 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
10366 | #endif | |
10367 | ||
252b5132 RH |
10368 | sect->alignment_power = 2; |
10369 | ||
936e320b | 10370 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
10371 | } |
10372 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
10373 | ||
8fbac78b JT |
10374 | /* These constants, and the structure offsets used below, are defined by |
10375 | Cygwin's core_dump.h */ | |
10376 | #define NOTE_INFO_PROCESS 1 | |
10377 | #define NOTE_INFO_THREAD 2 | |
10378 | #define NOTE_INFO_MODULE 3 | |
d61f3d03 | 10379 | #define NOTE_INFO_MODULE64 4 |
8fbac78b | 10380 | |
0a1b45a2 | 10381 | static bool |
217aa764 | 10382 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
10383 | { |
10384 | char buf[30]; | |
c044fabd | 10385 | char *name; |
d4c88bbb | 10386 | size_t len; |
3cdad084 | 10387 | unsigned int name_size; |
c044fabd | 10388 | asection *sect; |
2fef9373 | 10389 | unsigned int type; |
4a6636fb PA |
10390 | int is_active_thread; |
10391 | bfd_vma base_addr; | |
16e9c715 | 10392 | |
04ec0fa2 | 10393 | if (note->descsz < 4) |
0a1b45a2 | 10394 | return true; |
16e9c715 | 10395 | |
08dedd66 | 10396 | if (! startswith (note->namedata, "win32")) |
0a1b45a2 | 10397 | return true; |
4a6636fb PA |
10398 | |
10399 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10400 | |
7e0d77ef NC |
10401 | struct |
10402 | { | |
404ec933 JT |
10403 | const char *type_name; |
10404 | unsigned long min_size; | |
10405 | } size_check[] = | |
10406 | { | |
10407 | { "NOTE_INFO_PROCESS", 12 }, | |
10408 | { "NOTE_INFO_THREAD", 12 }, | |
10409 | { "NOTE_INFO_MODULE", 12 }, | |
10410 | { "NOTE_INFO_MODULE64", 16 }, | |
10411 | }; | |
10412 | ||
7e0d77ef | 10413 | if (type == 0 || type > (sizeof(size_check)/sizeof(size_check[0]))) |
0a1b45a2 | 10414 | return true; |
404ec933 JT |
10415 | |
10416 | if (note->descsz < size_check[type - 1].min_size) | |
10417 | { | |
11c6a7c6 AM |
10418 | _bfd_error_handler (_("%pB: warning: win32pstatus %s of size %lu bytes" |
10419 | " is too small"), | |
10420 | abfd, size_check[type - 1].type_name, note->descsz); | |
0a1b45a2 | 10421 | return true; |
404ec933 JT |
10422 | } |
10423 | ||
4a6636fb | 10424 | switch (type) |
16e9c715 | 10425 | { |
8fbac78b | 10426 | case NOTE_INFO_PROCESS: |
228e534f | 10427 | /* FIXME: need to add ->core->command. */ |
ff2084b9 | 10428 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 4); |
ff2084b9 | 10429 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 8); |
c044fabd | 10430 | break; |
16e9c715 | 10431 | |
8fbac78b | 10432 | case NOTE_INFO_THREAD: |
ff2084b9 | 10433 | /* Make a ".reg/<tid>" section containing the Win32 API thread CONTEXT |
11c6a7c6 | 10434 | structure. */ |
4a6636fb | 10435 | /* thread_info.tid */ |
ff2084b9 | 10436 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 4)); |
c044fabd | 10437 | |
d4c88bbb | 10438 | len = strlen (buf) + 1; |
a50b1753 | 10439 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10440 | if (name == NULL) |
0a1b45a2 | 10441 | return false; |
c044fabd | 10442 | |
d4c88bbb | 10443 | memcpy (name, buf, len); |
16e9c715 | 10444 | |
117ed4f8 | 10445 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10446 | if (sect == NULL) |
0a1b45a2 | 10447 | return false; |
c044fabd | 10448 | |
4a6636fb | 10449 | /* sizeof (thread_info.thread_context) */ |
03c29a6f | 10450 | sect->size = note->descsz - 12; |
4a6636fb PA |
10451 | /* offsetof (thread_info.thread_context) */ |
10452 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10453 | sect->alignment_power = 2; |
10454 | ||
4a6636fb PA |
10455 | /* thread_info.is_active_thread */ |
10456 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10457 | ||
10458 | if (is_active_thread) | |
16e9c715 | 10459 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
0a1b45a2 | 10460 | return false; |
16e9c715 NC |
10461 | break; |
10462 | ||
8fbac78b | 10463 | case NOTE_INFO_MODULE: |
d61f3d03 | 10464 | case NOTE_INFO_MODULE64: |
16e9c715 | 10465 | /* Make a ".module/xxxxxxxx" section. */ |
d61f3d03 | 10466 | if (type == NOTE_INFO_MODULE) |
11c6a7c6 AM |
10467 | { |
10468 | /* module_info.base_address */ | |
10469 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
10470 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); | |
10471 | /* module_info.module_name_size */ | |
10472 | name_size = bfd_get_32 (abfd, note->descdata + 8); | |
10473 | } | |
d61f3d03 | 10474 | else /* NOTE_INFO_MODULE64 */ |
11c6a7c6 AM |
10475 | { |
10476 | /* module_info.base_address */ | |
10477 | base_addr = bfd_get_64 (abfd, note->descdata + 4); | |
10478 | sprintf (buf, ".module/%016lx", (unsigned long) base_addr); | |
10479 | /* module_info.module_name_size */ | |
10480 | name_size = bfd_get_32 (abfd, note->descdata + 12); | |
10481 | } | |
c044fabd | 10482 | |
d4c88bbb | 10483 | len = strlen (buf) + 1; |
a50b1753 | 10484 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10485 | if (name == NULL) |
0a1b45a2 | 10486 | return false; |
c044fabd | 10487 | |
d4c88bbb | 10488 | memcpy (name, buf, len); |
252b5132 | 10489 | |
117ed4f8 | 10490 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10491 | |
16e9c715 | 10492 | if (sect == NULL) |
0a1b45a2 | 10493 | return false; |
c044fabd | 10494 | |
04ec0fa2 | 10495 | if (note->descsz < 12 + name_size) |
11c6a7c6 AM |
10496 | { |
10497 | _bfd_error_handler (_("%pB: win32pstatus NOTE_INFO_MODULE of size %lu" | |
10498 | " is too small to contain a name of size %u"), | |
10499 | abfd, note->descsz, name_size); | |
10500 | return true; | |
10501 | } | |
04ec0fa2 | 10502 | |
eea6121a | 10503 | sect->size = note->descsz; |
16e9c715 | 10504 | sect->filepos = note->descpos; |
16e9c715 NC |
10505 | sect->alignment_power = 2; |
10506 | break; | |
10507 | ||
10508 | default: | |
0a1b45a2 | 10509 | return true; |
16e9c715 NC |
10510 | } |
10511 | ||
0a1b45a2 | 10512 | return true; |
16e9c715 | 10513 | } |
252b5132 | 10514 | |
0a1b45a2 | 10515 | static bool |
217aa764 | 10516 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10517 | { |
9c5bfbb7 | 10518 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10519 | |
252b5132 RH |
10520 | switch (note->type) |
10521 | { | |
10522 | default: | |
0a1b45a2 | 10523 | return true; |
252b5132 | 10524 | |
252b5132 | 10525 | case NT_PRSTATUS: |
bb0082d6 AM |
10526 | if (bed->elf_backend_grok_prstatus) |
10527 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
0a1b45a2 | 10528 | return true; |
bb0082d6 | 10529 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10530 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10531 | #else |
0a1b45a2 | 10532 | return true; |
252b5132 RH |
10533 | #endif |
10534 | ||
10535 | #if defined (HAVE_PSTATUS_T) | |
10536 | case NT_PSTATUS: | |
10537 | return elfcore_grok_pstatus (abfd, note); | |
10538 | #endif | |
10539 | ||
10540 | #if defined (HAVE_LWPSTATUS_T) | |
10541 | case NT_LWPSTATUS: | |
10542 | return elfcore_grok_lwpstatus (abfd, note); | |
10543 | #endif | |
10544 | ||
10545 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10546 | return elfcore_grok_prfpreg (abfd, note); | |
10547 | ||
c044fabd | 10548 | case NT_WIN32PSTATUS: |
16e9c715 | 10549 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10550 | |
c044fabd | 10551 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10552 | if (note->namesz == 6 |
10553 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10554 | return elfcore_grok_prxfpreg (abfd, note); |
10555 | else | |
0a1b45a2 | 10556 | return true; |
ff08c6bb | 10557 | |
4339cae0 L |
10558 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10559 | if (note->namesz == 6 | |
10560 | && strcmp (note->namedata, "LINUX") == 0) | |
10561 | return elfcore_grok_xstatereg (abfd, note); | |
10562 | else | |
0a1b45a2 | 10563 | return true; |
4339cae0 | 10564 | |
97753bd5 AM |
10565 | case NT_PPC_VMX: |
10566 | if (note->namesz == 6 | |
10567 | && strcmp (note->namedata, "LINUX") == 0) | |
10568 | return elfcore_grok_ppc_vmx (abfd, note); | |
10569 | else | |
0a1b45a2 | 10570 | return true; |
97753bd5 | 10571 | |
89eeb0bc LM |
10572 | case NT_PPC_VSX: |
10573 | if (note->namesz == 6 | |
07d6d2b8 AM |
10574 | && strcmp (note->namedata, "LINUX") == 0) |
10575 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10576 | else |
0a1b45a2 | 10577 | return true; |
89eeb0bc | 10578 | |
cb2366c1 EBM |
10579 | case NT_PPC_TAR: |
10580 | if (note->namesz == 6 | |
4b24dd1a AM |
10581 | && strcmp (note->namedata, "LINUX") == 0) |
10582 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10583 | else |
0a1b45a2 | 10584 | return true; |
cb2366c1 EBM |
10585 | |
10586 | case NT_PPC_PPR: | |
10587 | if (note->namesz == 6 | |
4b24dd1a AM |
10588 | && strcmp (note->namedata, "LINUX") == 0) |
10589 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10590 | else |
0a1b45a2 | 10591 | return true; |
cb2366c1 EBM |
10592 | |
10593 | case NT_PPC_DSCR: | |
10594 | if (note->namesz == 6 | |
4b24dd1a AM |
10595 | && strcmp (note->namedata, "LINUX") == 0) |
10596 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10597 | else |
0a1b45a2 | 10598 | return true; |
cb2366c1 EBM |
10599 | |
10600 | case NT_PPC_EBB: | |
10601 | if (note->namesz == 6 | |
4b24dd1a AM |
10602 | && strcmp (note->namedata, "LINUX") == 0) |
10603 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10604 | else |
0a1b45a2 | 10605 | return true; |
cb2366c1 EBM |
10606 | |
10607 | case NT_PPC_PMU: | |
10608 | if (note->namesz == 6 | |
4b24dd1a AM |
10609 | && strcmp (note->namedata, "LINUX") == 0) |
10610 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10611 | else |
0a1b45a2 | 10612 | return true; |
cb2366c1 EBM |
10613 | |
10614 | case NT_PPC_TM_CGPR: | |
10615 | if (note->namesz == 6 | |
4b24dd1a AM |
10616 | && strcmp (note->namedata, "LINUX") == 0) |
10617 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10618 | else |
0a1b45a2 | 10619 | return true; |
cb2366c1 EBM |
10620 | |
10621 | case NT_PPC_TM_CFPR: | |
10622 | if (note->namesz == 6 | |
4b24dd1a AM |
10623 | && strcmp (note->namedata, "LINUX") == 0) |
10624 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10625 | else |
0a1b45a2 | 10626 | return true; |
cb2366c1 EBM |
10627 | |
10628 | case NT_PPC_TM_CVMX: | |
10629 | if (note->namesz == 6 | |
4b24dd1a AM |
10630 | && strcmp (note->namedata, "LINUX") == 0) |
10631 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10632 | else |
0a1b45a2 | 10633 | return true; |
cb2366c1 EBM |
10634 | |
10635 | case NT_PPC_TM_CVSX: | |
10636 | if (note->namesz == 6 | |
4b24dd1a AM |
10637 | && strcmp (note->namedata, "LINUX") == 0) |
10638 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10639 | else |
0a1b45a2 | 10640 | return true; |
cb2366c1 EBM |
10641 | |
10642 | case NT_PPC_TM_SPR: | |
10643 | if (note->namesz == 6 | |
4b24dd1a AM |
10644 | && strcmp (note->namedata, "LINUX") == 0) |
10645 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10646 | else |
0a1b45a2 | 10647 | return true; |
cb2366c1 EBM |
10648 | |
10649 | case NT_PPC_TM_CTAR: | |
10650 | if (note->namesz == 6 | |
4b24dd1a AM |
10651 | && strcmp (note->namedata, "LINUX") == 0) |
10652 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10653 | else |
0a1b45a2 | 10654 | return true; |
cb2366c1 EBM |
10655 | |
10656 | case NT_PPC_TM_CPPR: | |
10657 | if (note->namesz == 6 | |
4b24dd1a AM |
10658 | && strcmp (note->namedata, "LINUX") == 0) |
10659 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10660 | else |
0a1b45a2 | 10661 | return true; |
cb2366c1 EBM |
10662 | |
10663 | case NT_PPC_TM_CDSCR: | |
10664 | if (note->namesz == 6 | |
4b24dd1a AM |
10665 | && strcmp (note->namedata, "LINUX") == 0) |
10666 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10667 | else |
0a1b45a2 | 10668 | return true; |
cb2366c1 | 10669 | |
0675e188 UW |
10670 | case NT_S390_HIGH_GPRS: |
10671 | if (note->namesz == 6 | |
07d6d2b8 AM |
10672 | && strcmp (note->namedata, "LINUX") == 0) |
10673 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10674 | else |
0a1b45a2 | 10675 | return true; |
0675e188 | 10676 | |
d7eeb400 MS |
10677 | case NT_S390_TIMER: |
10678 | if (note->namesz == 6 | |
07d6d2b8 AM |
10679 | && strcmp (note->namedata, "LINUX") == 0) |
10680 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10681 | else |
0a1b45a2 | 10682 | return true; |
d7eeb400 MS |
10683 | |
10684 | case NT_S390_TODCMP: | |
10685 | if (note->namesz == 6 | |
07d6d2b8 AM |
10686 | && strcmp (note->namedata, "LINUX") == 0) |
10687 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10688 | else |
0a1b45a2 | 10689 | return true; |
d7eeb400 MS |
10690 | |
10691 | case NT_S390_TODPREG: | |
10692 | if (note->namesz == 6 | |
07d6d2b8 AM |
10693 | && strcmp (note->namedata, "LINUX") == 0) |
10694 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10695 | else |
0a1b45a2 | 10696 | return true; |
d7eeb400 MS |
10697 | |
10698 | case NT_S390_CTRS: | |
10699 | if (note->namesz == 6 | |
07d6d2b8 AM |
10700 | && strcmp (note->namedata, "LINUX") == 0) |
10701 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10702 | else |
0a1b45a2 | 10703 | return true; |
d7eeb400 MS |
10704 | |
10705 | case NT_S390_PREFIX: | |
10706 | if (note->namesz == 6 | |
07d6d2b8 AM |
10707 | && strcmp (note->namedata, "LINUX") == 0) |
10708 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10709 | else |
0a1b45a2 | 10710 | return true; |
d7eeb400 | 10711 | |
355b81d9 UW |
10712 | case NT_S390_LAST_BREAK: |
10713 | if (note->namesz == 6 | |
07d6d2b8 AM |
10714 | && strcmp (note->namedata, "LINUX") == 0) |
10715 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10716 | else |
0a1b45a2 | 10717 | return true; |
355b81d9 UW |
10718 | |
10719 | case NT_S390_SYSTEM_CALL: | |
10720 | if (note->namesz == 6 | |
07d6d2b8 AM |
10721 | && strcmp (note->namedata, "LINUX") == 0) |
10722 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10723 | else |
0a1b45a2 | 10724 | return true; |
355b81d9 | 10725 | |
abb3f6cc NC |
10726 | case NT_S390_TDB: |
10727 | if (note->namesz == 6 | |
07d6d2b8 AM |
10728 | && strcmp (note->namedata, "LINUX") == 0) |
10729 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10730 | else |
0a1b45a2 | 10731 | return true; |
abb3f6cc | 10732 | |
4ef9f41a AA |
10733 | case NT_S390_VXRS_LOW: |
10734 | if (note->namesz == 6 | |
10735 | && strcmp (note->namedata, "LINUX") == 0) | |
10736 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10737 | else | |
0a1b45a2 | 10738 | return true; |
4ef9f41a AA |
10739 | |
10740 | case NT_S390_VXRS_HIGH: | |
10741 | if (note->namesz == 6 | |
10742 | && strcmp (note->namedata, "LINUX") == 0) | |
10743 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10744 | else | |
0a1b45a2 | 10745 | return true; |
4ef9f41a | 10746 | |
88ab90e8 AA |
10747 | case NT_S390_GS_CB: |
10748 | if (note->namesz == 6 | |
10749 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10750 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 | 10751 | else |
0a1b45a2 | 10752 | return true; |
88ab90e8 AA |
10753 | |
10754 | case NT_S390_GS_BC: | |
10755 | if (note->namesz == 6 | |
10756 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10757 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 | 10758 | else |
0a1b45a2 | 10759 | return true; |
88ab90e8 | 10760 | |
27456742 AK |
10761 | case NT_ARC_V2: |
10762 | if (note->namesz == 6 | |
10763 | && strcmp (note->namedata, "LINUX") == 0) | |
10764 | return elfcore_grok_arc_v2 (abfd, note); | |
10765 | else | |
0a1b45a2 | 10766 | return true; |
27456742 | 10767 | |
faa9a424 UW |
10768 | case NT_ARM_VFP: |
10769 | if (note->namesz == 6 | |
10770 | && strcmp (note->namedata, "LINUX") == 0) | |
10771 | return elfcore_grok_arm_vfp (abfd, note); | |
10772 | else | |
0a1b45a2 | 10773 | return true; |
faa9a424 | 10774 | |
652451f8 YZ |
10775 | case NT_ARM_TLS: |
10776 | if (note->namesz == 6 | |
10777 | && strcmp (note->namedata, "LINUX") == 0) | |
10778 | return elfcore_grok_aarch_tls (abfd, note); | |
10779 | else | |
0a1b45a2 | 10780 | return true; |
652451f8 YZ |
10781 | |
10782 | case NT_ARM_HW_BREAK: | |
10783 | if (note->namesz == 6 | |
10784 | && strcmp (note->namedata, "LINUX") == 0) | |
10785 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10786 | else | |
0a1b45a2 | 10787 | return true; |
652451f8 YZ |
10788 | |
10789 | case NT_ARM_HW_WATCH: | |
10790 | if (note->namesz == 6 | |
10791 | && strcmp (note->namedata, "LINUX") == 0) | |
10792 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10793 | else | |
0a1b45a2 | 10794 | return true; |
652451f8 | 10795 | |
ad1cc4e4 AH |
10796 | case NT_ARM_SVE: |
10797 | if (note->namesz == 6 | |
10798 | && strcmp (note->namedata, "LINUX") == 0) | |
10799 | return elfcore_grok_aarch_sve (abfd, note); | |
10800 | else | |
0a1b45a2 | 10801 | return true; |
ad1cc4e4 | 10802 | |
e6c3b5bf AH |
10803 | case NT_ARM_PAC_MASK: |
10804 | if (note->namesz == 6 | |
10805 | && strcmp (note->namedata, "LINUX") == 0) | |
10806 | return elfcore_grok_aarch_pauth (abfd, note); | |
10807 | else | |
0a1b45a2 | 10808 | return true; |
e6c3b5bf | 10809 | |
f0bbe8ba LM |
10810 | case NT_ARM_TAGGED_ADDR_CTRL: |
10811 | if (note->namesz == 6 | |
10812 | && strcmp (note->namedata, "LINUX") == 0) | |
10813 | return elfcore_grok_aarch_mte (abfd, note); | |
10814 | else | |
10815 | return true; | |
10816 | ||
b63a5e38 AB |
10817 | case NT_GDB_TDESC: |
10818 | if (note->namesz == 4 | |
11c6a7c6 AM |
10819 | && strcmp (note->namedata, "GDB") == 0) |
10820 | return elfcore_grok_gdb_tdesc (abfd, note); | |
b63a5e38 | 10821 | else |
11c6a7c6 | 10822 | return true; |
b63a5e38 | 10823 | |
db6092f3 AB |
10824 | case NT_RISCV_CSR: |
10825 | if (note->namesz == 4 | |
11c6a7c6 AM |
10826 | && strcmp (note->namedata, "GDB") == 0) |
10827 | return elfcore_grok_riscv_csr (abfd, note); | |
db6092f3 | 10828 | else |
0a1b45a2 | 10829 | return true; |
db6092f3 | 10830 | |
e214f8db | 10831 | case NT_LARCH_CPUCFG: |
10832 | if (note->namesz == 6 | |
10833 | && strcmp (note->namedata, "LINUX") == 0) | |
10834 | return elfcore_grok_loongarch_cpucfg (abfd, note); | |
10835 | else | |
10836 | return true; | |
10837 | ||
10838 | case NT_LARCH_LBT: | |
10839 | if (note->namesz == 6 | |
10840 | && strcmp (note->namedata, "LINUX") == 0) | |
10841 | return elfcore_grok_loongarch_lbt (abfd, note); | |
10842 | else | |
10843 | return true; | |
10844 | ||
10845 | case NT_LARCH_LSX: | |
10846 | if (note->namesz == 6 | |
10847 | && strcmp (note->namedata, "LINUX") == 0) | |
10848 | return elfcore_grok_loongarch_lsx (abfd, note); | |
10849 | else | |
10850 | return true; | |
10851 | ||
10852 | case NT_LARCH_LASX: | |
10853 | if (note->namesz == 6 | |
10854 | && strcmp (note->namedata, "LINUX") == 0) | |
10855 | return elfcore_grok_loongarch_lasx (abfd, note); | |
10856 | else | |
10857 | return true; | |
10858 | ||
252b5132 RH |
10859 | case NT_PRPSINFO: |
10860 | case NT_PSINFO: | |
bb0082d6 AM |
10861 | if (bed->elf_backend_grok_psinfo) |
10862 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
0a1b45a2 | 10863 | return true; |
bb0082d6 | 10864 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10865 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10866 | #else |
0a1b45a2 | 10867 | return true; |
252b5132 | 10868 | #endif |
3333a7c3 RM |
10869 | |
10870 | case NT_AUXV: | |
58e07198 | 10871 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10872 | |
451b7c33 TT |
10873 | case NT_FILE: |
10874 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10875 | note); | |
10876 | ||
9015683b TT |
10877 | case NT_SIGINFO: |
10878 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10879 | note); | |
5b2c414d | 10880 | |
252b5132 RH |
10881 | } |
10882 | } | |
10883 | ||
0a1b45a2 | 10884 | static bool |
718175fa JK |
10885 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) |
10886 | { | |
c74f7d1c | 10887 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10888 | |
10889 | if (note->descsz == 0) | |
0a1b45a2 | 10890 | return false; |
30e8ee25 | 10891 | |
c74f7d1c JT |
10892 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10893 | if (build_id == NULL) | |
0a1b45a2 | 10894 | return false; |
718175fa | 10895 | |
c74f7d1c JT |
10896 | build_id->size = note->descsz; |
10897 | memcpy (build_id->data, note->descdata, note->descsz); | |
10898 | abfd->build_id = build_id; | |
718175fa | 10899 | |
0a1b45a2 | 10900 | return true; |
718175fa JK |
10901 | } |
10902 | ||
0a1b45a2 | 10903 | static bool |
718175fa JK |
10904 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) |
10905 | { | |
10906 | switch (note->type) | |
10907 | { | |
10908 | default: | |
0a1b45a2 | 10909 | return true; |
718175fa | 10910 | |
46bed679 L |
10911 | case NT_GNU_PROPERTY_TYPE_0: |
10912 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10913 | ||
718175fa JK |
10914 | case NT_GNU_BUILD_ID: |
10915 | return elfobj_grok_gnu_build_id (abfd, note); | |
10916 | } | |
10917 | } | |
10918 | ||
0a1b45a2 | 10919 | static bool |
e21e5835 NC |
10920 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) |
10921 | { | |
10922 | struct sdt_note *cur = | |
7a6e0d89 AM |
10923 | (struct sdt_note *) bfd_alloc (abfd, |
10924 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10925 | |
10926 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10927 | cur->size = (bfd_size_type) note->descsz; | |
10928 | memcpy (cur->data, note->descdata, note->descsz); | |
10929 | ||
10930 | elf_tdata (abfd)->sdt_note_head = cur; | |
10931 | ||
0a1b45a2 | 10932 | return true; |
e21e5835 NC |
10933 | } |
10934 | ||
0a1b45a2 | 10935 | static bool |
e21e5835 NC |
10936 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) |
10937 | { | |
10938 | switch (note->type) | |
10939 | { | |
10940 | case NT_STAPSDT: | |
10941 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10942 | ||
10943 | default: | |
0a1b45a2 | 10944 | return true; |
e21e5835 NC |
10945 | } |
10946 | } | |
10947 | ||
0a1b45a2 | 10948 | static bool |
aa1ed4a9 JB |
10949 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) |
10950 | { | |
10951 | size_t offset; | |
10952 | ||
b5430a3c | 10953 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10954 | { |
b5430a3c | 10955 | case ELFCLASS32: |
0064d223 | 10956 | if (note->descsz < 108) |
0a1b45a2 | 10957 | return false; |
aa1ed4a9 JB |
10958 | break; |
10959 | ||
b5430a3c | 10960 | case ELFCLASS64: |
0064d223 | 10961 | if (note->descsz < 120) |
0a1b45a2 | 10962 | return false; |
aa1ed4a9 JB |
10963 | break; |
10964 | ||
10965 | default: | |
0a1b45a2 | 10966 | return false; |
aa1ed4a9 JB |
10967 | } |
10968 | ||
0064d223 JB |
10969 | /* Check for version 1 in pr_version. */ |
10970 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10971 | return false; |
80a04378 | 10972 | |
0064d223 JB |
10973 | offset = 4; |
10974 | ||
10975 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10976 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10977 | offset += 4; |
10978 | else | |
10979 | { | |
10980 | offset += 4; /* Padding before pr_psinfosz. */ | |
10981 | offset += 8; | |
10982 | } | |
10983 | ||
aa1ed4a9 JB |
10984 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10985 | elf_tdata (abfd)->core->program | |
10986 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10987 | offset += 17; | |
10988 | ||
10989 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10990 | elf_tdata (abfd)->core->command | |
10991 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10992 | offset += 81; |
10993 | ||
10994 | /* Padding before pr_pid. */ | |
10995 | offset += 2; | |
10996 | ||
10997 | /* The pr_pid field was added in version "1a". */ | |
10998 | if (note->descsz < offset + 4) | |
0a1b45a2 | 10999 | return true; |
0064d223 JB |
11000 | |
11001 | elf_tdata (abfd)->core->pid | |
11002 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 | 11003 | |
0a1b45a2 | 11004 | return true; |
aa1ed4a9 JB |
11005 | } |
11006 | ||
0a1b45a2 | 11007 | static bool |
aa1ed4a9 JB |
11008 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) |
11009 | { | |
11010 | size_t offset; | |
11011 | size_t size; | |
24d3e51b | 11012 | size_t min_size; |
aa1ed4a9 | 11013 | |
24d3e51b NC |
11014 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
11015 | Also compute minimum size of this note. */ | |
b5430a3c | 11016 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 11017 | { |
b5430a3c | 11018 | case ELFCLASS32: |
24d3e51b NC |
11019 | offset = 4 + 4; |
11020 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
11021 | break; |
11022 | ||
b5430a3c | 11023 | case ELFCLASS64: |
24d3e51b NC |
11024 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
11025 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
11026 | break; |
11027 | ||
11028 | default: | |
0a1b45a2 | 11029 | return false; |
aa1ed4a9 JB |
11030 | } |
11031 | ||
24d3e51b | 11032 | if (note->descsz < min_size) |
0a1b45a2 | 11033 | return false; |
24d3e51b NC |
11034 | |
11035 | /* Check for version 1 in pr_version. */ | |
11036 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 11037 | return false; |
aa1ed4a9 | 11038 | |
24d3e51b NC |
11039 | /* Extract size of pr_reg from pr_gregsetsz. */ |
11040 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 11041 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
11042 | { |
11043 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
11044 | offset += 4 * 2; | |
11045 | } | |
b5430a3c | 11046 | else |
24d3e51b NC |
11047 | { |
11048 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
11049 | offset += 8 * 2; | |
11050 | } | |
aa1ed4a9 | 11051 | |
24d3e51b | 11052 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
11053 | offset += 4; |
11054 | ||
24d3e51b | 11055 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
11056 | if (elf_tdata (abfd)->core->signal == 0) |
11057 | elf_tdata (abfd)->core->signal | |
11058 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
11059 | offset += 4; | |
11060 | ||
24d3e51b | 11061 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
11062 | elf_tdata (abfd)->core->lwpid |
11063 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
11064 | offset += 4; | |
11065 | ||
24d3e51b | 11066 | /* Padding before pr_reg. */ |
b5430a3c | 11067 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
11068 | offset += 4; |
11069 | ||
24d3e51b NC |
11070 | /* Make sure that there is enough data remaining in the note. */ |
11071 | if ((note->descsz - offset) < size) | |
0a1b45a2 | 11072 | return false; |
24d3e51b | 11073 | |
aa1ed4a9 JB |
11074 | /* Make a ".reg/999" section and a ".reg" section. */ |
11075 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
11076 | size, note->descpos + offset); | |
11077 | } | |
11078 | ||
0a1b45a2 | 11079 | static bool |
aa1ed4a9 JB |
11080 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) |
11081 | { | |
544c67cd JB |
11082 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11083 | ||
aa1ed4a9 JB |
11084 | switch (note->type) |
11085 | { | |
11086 | case NT_PRSTATUS: | |
544c67cd JB |
11087 | if (bed->elf_backend_grok_freebsd_prstatus) |
11088 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
0a1b45a2 | 11089 | return true; |
aa1ed4a9 JB |
11090 | return elfcore_grok_freebsd_prstatus (abfd, note); |
11091 | ||
11092 | case NT_FPREGSET: | |
11093 | return elfcore_grok_prfpreg (abfd, note); | |
11094 | ||
11095 | case NT_PRPSINFO: | |
11096 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
11097 | ||
11098 | case NT_FREEBSD_THRMISC: | |
e330d4c0 | 11099 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); |
aa1ed4a9 | 11100 | |
ddb2bbcf JB |
11101 | case NT_FREEBSD_PROCSTAT_PROC: |
11102 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
11103 | note); | |
11104 | ||
11105 | case NT_FREEBSD_PROCSTAT_FILES: | |
11106 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
11107 | note); | |
11108 | ||
11109 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
11110 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
11111 | note); | |
11112 | ||
3350c5f5 | 11113 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 11114 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 11115 | |
b5c2367c JB |
11116 | case NT_FREEBSD_X86_SEGBASES: |
11117 | return elfcore_make_note_pseudosection (abfd, ".reg-x86-segbases", note); | |
11118 | ||
aa1ed4a9 | 11119 | case NT_X86_XSTATE: |
e330d4c0 | 11120 | return elfcore_grok_xstatereg (abfd, note); |
aa1ed4a9 | 11121 | |
e6f3b9c3 JB |
11122 | case NT_FREEBSD_PTLWPINFO: |
11123 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
11124 | note); | |
11125 | ||
8e6afe40 JB |
11126 | case NT_ARM_TLS: |
11127 | return elfcore_grok_aarch_tls (abfd, note); | |
11128 | ||
6d5be5d6 JB |
11129 | case NT_ARM_VFP: |
11130 | return elfcore_grok_arm_vfp (abfd, note); | |
11131 | ||
aa1ed4a9 | 11132 | default: |
0a1b45a2 | 11133 | return true; |
aa1ed4a9 JB |
11134 | } |
11135 | } | |
11136 | ||
0a1b45a2 | 11137 | static bool |
217aa764 | 11138 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
11139 | { |
11140 | char *cp; | |
11141 | ||
11142 | cp = strchr (note->namedata, '@'); | |
11143 | if (cp != NULL) | |
11144 | { | |
d2b64500 | 11145 | *lwpidp = atoi(cp + 1); |
0a1b45a2 | 11146 | return true; |
50b2bdb7 | 11147 | } |
0a1b45a2 | 11148 | return false; |
50b2bdb7 AM |
11149 | } |
11150 | ||
0a1b45a2 | 11151 | static bool |
217aa764 | 11152 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 11153 | { |
80a04378 | 11154 | if (note->descsz <= 0x7c + 31) |
0a1b45a2 | 11155 | return false; |
80a04378 | 11156 | |
50b2bdb7 | 11157 | /* Signal number at offset 0x08. */ |
228e534f | 11158 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
11159 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11160 | ||
11161 | /* Process ID at offset 0x50. */ | |
228e534f | 11162 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
11163 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
11164 | ||
11165 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 11166 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
11167 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
11168 | ||
7720ba9f MK |
11169 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
11170 | note); | |
50b2bdb7 AM |
11171 | } |
11172 | ||
0a1b45a2 | 11173 | static bool |
217aa764 | 11174 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
11175 | { |
11176 | int lwp; | |
11177 | ||
11178 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 11179 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 11180 | |
58e07198 | 11181 | switch (note->type) |
50b2bdb7 | 11182 | { |
58e07198 | 11183 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 11184 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
11185 | find this note before any of the others, which is fine, |
11186 | since the kernel writes this note out first when it | |
11187 | creates a core file. */ | |
50b2bdb7 | 11188 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
11189 | case NT_NETBSDCORE_AUXV: |
11190 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
11191 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
06d949ec KR |
11192 | case NT_NETBSDCORE_LWPSTATUS: |
11193 | return elfcore_make_note_pseudosection (abfd, | |
11194 | ".note.netbsdcore.lwpstatus", | |
11195 | note); | |
58e07198 CZ |
11196 | default: |
11197 | break; | |
50b2bdb7 AM |
11198 | } |
11199 | ||
06d949ec | 11200 | /* As of March 2020 there are no other machine-independent notes |
b4db1224 JT |
11201 | defined for NetBSD core files. If the note type is less |
11202 | than the start of the machine-dependent note types, we don't | |
11203 | understand it. */ | |
47d9a591 | 11204 | |
b4db1224 | 11205 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
0a1b45a2 | 11206 | return true; |
50b2bdb7 AM |
11207 | |
11208 | ||
11209 | switch (bfd_get_arch (abfd)) | |
11210 | { | |
08a40648 AM |
11211 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
11212 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 | 11213 | |
015ec493 | 11214 | case bfd_arch_aarch64: |
50b2bdb7 AM |
11215 | case bfd_arch_alpha: |
11216 | case bfd_arch_sparc: | |
11217 | switch (note->type) | |
08a40648 AM |
11218 | { |
11219 | case NT_NETBSDCORE_FIRSTMACH+0: | |
11220 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11221 | |
08a40648 AM |
11222 | case NT_NETBSDCORE_FIRSTMACH+2: |
11223 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11224 | |
08a40648 | 11225 | default: |
0a1b45a2 | 11226 | return true; |
08a40648 | 11227 | } |
50b2bdb7 | 11228 | |
58e07198 CZ |
11229 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
11230 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
11231 | structure which lacks GBR. */ | |
11232 | ||
11233 | case bfd_arch_sh: | |
11234 | switch (note->type) | |
11235 | { | |
11236 | case NT_NETBSDCORE_FIRSTMACH+3: | |
11237 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11238 | ||
11239 | case NT_NETBSDCORE_FIRSTMACH+5: | |
11240 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11241 | ||
11242 | default: | |
0a1b45a2 | 11243 | return true; |
58e07198 CZ |
11244 | } |
11245 | ||
08a40648 AM |
11246 | /* On all other arch's, PT_GETREGS == mach+1 and |
11247 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
11248 | |
11249 | default: | |
11250 | switch (note->type) | |
08a40648 AM |
11251 | { |
11252 | case NT_NETBSDCORE_FIRSTMACH+1: | |
11253 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11254 | |
08a40648 AM |
11255 | case NT_NETBSDCORE_FIRSTMACH+3: |
11256 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11257 | |
08a40648 | 11258 | default: |
0a1b45a2 | 11259 | return true; |
08a40648 | 11260 | } |
50b2bdb7 AM |
11261 | } |
11262 | /* NOTREACHED */ | |
11263 | } | |
11264 | ||
0a1b45a2 | 11265 | static bool |
67cc5033 MK |
11266 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
11267 | { | |
80a04378 | 11268 | if (note->descsz <= 0x48 + 31) |
0a1b45a2 | 11269 | return false; |
80a04378 | 11270 | |
67cc5033 | 11271 | /* Signal number at offset 0x08. */ |
228e534f | 11272 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
11273 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11274 | ||
11275 | /* Process ID at offset 0x20. */ | |
228e534f | 11276 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
11277 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
11278 | ||
11279 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 11280 | elf_tdata (abfd)->core->command |
67cc5033 MK |
11281 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
11282 | ||
0a1b45a2 | 11283 | return true; |
67cc5033 MK |
11284 | } |
11285 | ||
6420dd27 LB |
11286 | /* Processes Solaris's process status note. |
11287 | sig_off ~ offsetof(prstatus_t, pr_cursig) | |
11288 | pid_off ~ offsetof(prstatus_t, pr_pid) | |
11289 | lwpid_off ~ offsetof(prstatus_t, pr_who) | |
11290 | gregset_size ~ sizeof(gregset_t) | |
11291 | gregset_offset ~ offsetof(prstatus_t, pr_reg) */ | |
11292 | ||
11293 | static bool | |
11294 | elfcore_grok_solaris_prstatus (bfd *abfd, Elf_Internal_Note* note, int sig_off, | |
11295 | int pid_off, int lwpid_off, size_t gregset_size, | |
11296 | size_t gregset_offset) | |
11297 | { | |
11298 | asection *sect = NULL; | |
11299 | elf_tdata (abfd)->core->signal | |
11300 | = bfd_get_16 (abfd, note->descdata + sig_off); | |
11301 | elf_tdata (abfd)->core->pid | |
11302 | = bfd_get_32 (abfd, note->descdata + pid_off); | |
11303 | elf_tdata (abfd)->core->lwpid | |
11304 | = bfd_get_32 (abfd, note->descdata + lwpid_off); | |
11305 | ||
11306 | sect = bfd_get_section_by_name (abfd, ".reg"); | |
11307 | if (sect != NULL) | |
11308 | sect->size = gregset_size; | |
11309 | ||
11310 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", gregset_size, | |
11311 | note->descpos + gregset_offset); | |
11312 | } | |
11313 | ||
11314 | /* Gets program and arguments from a core. | |
11315 | prog_off ~ offsetof(prpsinfo | psinfo_t, pr_fname) | |
11316 | comm_off ~ offsetof(prpsinfo | psinfo_t, pr_psargs) */ | |
11317 | ||
11318 | static bool | |
11319 | elfcore_grok_solaris_info(bfd *abfd, Elf_Internal_Note* note, | |
11320 | int prog_off, int comm_off) | |
11321 | { | |
11322 | elf_tdata (abfd)->core->program | |
11323 | = _bfd_elfcore_strndup (abfd, note->descdata + prog_off, 16); | |
11324 | elf_tdata (abfd)->core->command | |
11325 | = _bfd_elfcore_strndup (abfd, note->descdata + comm_off, 80); | |
11326 | ||
11327 | return true; | |
11328 | } | |
11329 | ||
11330 | /* Processes Solaris's LWP status note. | |
11331 | gregset_size ~ sizeof(gregset_t) | |
11332 | gregset_off ~ offsetof(lwpstatus_t, pr_reg) | |
11333 | fpregset_size ~ sizeof(fpregset_t) | |
11334 | fpregset_off ~ offsetof(lwpstatus_t, pr_fpreg) */ | |
11335 | ||
11336 | static bool | |
11337 | elfcore_grok_solaris_lwpstatus (bfd *abfd, Elf_Internal_Note* note, | |
11338 | size_t gregset_size, int gregset_off, | |
11339 | size_t fpregset_size, int fpregset_off) | |
11340 | { | |
11341 | asection *sect = NULL; | |
11342 | char reg2_section_name[16] = { 0 }; | |
11343 | ||
11344 | (void) snprintf (reg2_section_name, 16, "%s/%i", ".reg2", | |
11345 | elf_tdata (abfd)->core->lwpid); | |
11346 | ||
11347 | /* offsetof(lwpstatus_t, pr_lwpid) */ | |
11348 | elf_tdata (abfd)->core->lwpid | |
11349 | = bfd_get_32 (abfd, note->descdata + 4); | |
11350 | /* offsetof(lwpstatus_t, pr_cursig) */ | |
11351 | elf_tdata (abfd)->core->signal | |
11352 | = bfd_get_16 (abfd, note->descdata + 12); | |
11353 | ||
11354 | sect = bfd_get_section_by_name (abfd, ".reg"); | |
11355 | if (sect != NULL) | |
11356 | sect->size = gregset_size; | |
11357 | else if (!_bfd_elfcore_make_pseudosection (abfd, ".reg", gregset_size, | |
11358 | note->descpos + gregset_off)) | |
11359 | return false; | |
11360 | ||
11361 | sect = bfd_get_section_by_name (abfd, reg2_section_name); | |
11362 | if (sect != NULL) | |
11363 | { | |
11364 | sect->size = fpregset_size; | |
11365 | sect->filepos = note->descpos + fpregset_off; | |
11366 | sect->alignment_power = 2; | |
11367 | } | |
11368 | else if (!_bfd_elfcore_make_pseudosection (abfd, ".reg2", fpregset_size, | |
11369 | note->descpos + fpregset_off)) | |
11370 | return false; | |
11371 | ||
11372 | return true; | |
11373 | } | |
11374 | ||
11375 | static bool | |
11376 | elfcore_grok_solaris_note_impl (bfd *abfd, Elf_Internal_Note *note) | |
11377 | { | |
11378 | if (note == NULL) | |
11379 | return false; | |
11380 | ||
11381 | /* core files are identified as 32- or 64-bit, SPARC or x86, | |
11382 | by the size of the descsz which matches the sizeof() | |
11383 | the type appropriate for that note type (e.g., prstatus_t for | |
11384 | SOLARIS_NT_PRSTATUS) for the corresponding architecture | |
11385 | on Solaris. The core file bitness may differ from the bitness of | |
11386 | gdb itself, so fixed values are used instead of sizeof(). | |
11387 | Appropriate fixed offsets are also used to obtain data from | |
11388 | the note. */ | |
11389 | ||
11390 | switch ((int) note->type) | |
11391 | { | |
11392 | case SOLARIS_NT_PRSTATUS: | |
11393 | switch (note->descsz) | |
11394 | { | |
11395 | case 508: /* sizeof(prstatus_t) SPARC 32-bit */ | |
11396 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11397 | 136, 216, 308, 152, 356); | |
11398 | case 904: /* sizeof(prstatus_t) SPARC 64-bit */ | |
11399 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11400 | 264, 360, 520, 304, 600); | |
11401 | case 432: /* sizeof(prstatus_t) Intel 32-bit */ | |
11402 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11403 | 136, 216, 308, 76, 356); | |
11404 | case 824: /* sizeof(prstatus_t) Intel 64-bit */ | |
11405 | return elfcore_grok_solaris_prstatus(abfd, note, | |
11406 | 264, 360, 520, 224, 600); | |
11407 | default: | |
11408 | return true; | |
11409 | } | |
11410 | ||
11411 | case SOLARIS_NT_PSINFO: | |
11412 | case SOLARIS_NT_PRPSINFO: | |
11413 | switch (note->descsz) | |
11414 | { | |
11415 | case 260: /* sizeof(prpsinfo_t) SPARC and Intel 32-bit */ | |
11416 | return elfcore_grok_solaris_info(abfd, note, 84, 100); | |
11417 | case 328: /* sizeof(prpsinfo_t) SPARC and Intel 64-bit */ | |
11418 | return elfcore_grok_solaris_info(abfd, note, 120, 136); | |
11419 | case 360: /* sizeof(psinfo_t) SPARC and Intel 32-bit */ | |
11420 | return elfcore_grok_solaris_info(abfd, note, 88, 104); | |
11421 | case 440: /* sizeof(psinfo_t) SPARC and Intel 64-bit */ | |
11422 | return elfcore_grok_solaris_info(abfd, note, 136, 152); | |
11423 | default: | |
11424 | return true; | |
11425 | } | |
11426 | ||
11427 | case SOLARIS_NT_LWPSTATUS: | |
11428 | switch (note->descsz) | |
11429 | { | |
11430 | case 896: /* sizeof(lwpstatus_t) SPARC 32-bit */ | |
11431 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11432 | 152, 344, 400, 496); | |
11433 | case 1392: /* sizeof(lwpstatus_t) SPARC 64-bit */ | |
11434 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11435 | 304, 544, 544, 848); | |
11436 | case 800: /* sizeof(lwpstatus_t) Intel 32-bit */ | |
11437 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11438 | 76, 344, 380, 420); | |
11439 | case 1296: /* sizeof(lwpstatus_t) Intel 64-bit */ | |
11440 | return elfcore_grok_solaris_lwpstatus(abfd, note, | |
11441 | 224, 544, 528, 768); | |
11442 | default: | |
11443 | return true; | |
11444 | } | |
11445 | ||
11446 | case SOLARIS_NT_LWPSINFO: | |
11447 | /* sizeof(lwpsinfo_t) on 32- and 64-bit, respectively */ | |
11448 | if (note->descsz == 128 || note->descsz == 152) | |
11449 | elf_tdata (abfd)->core->lwpid = | |
11450 | bfd_get_32 (abfd, note->descdata + 4); | |
11451 | break; | |
11452 | ||
11453 | default: | |
11454 | break; | |
11455 | } | |
11456 | ||
11457 | return true; | |
11458 | } | |
11459 | ||
11460 | /* For name starting with "CORE" this may be either a Solaris | |
11461 | core file or a gdb-generated core file. Do Solaris-specific | |
11462 | processing on selected note types first with | |
11463 | elfcore_grok_solaris_note(), then process the note | |
11464 | in elfcore_grok_note(). */ | |
11465 | ||
11466 | static bool | |
11467 | elfcore_grok_solaris_note (bfd *abfd, Elf_Internal_Note *note) | |
11468 | { | |
11469 | if (!elfcore_grok_solaris_note_impl (abfd, note)) | |
11470 | return false; | |
11471 | ||
11472 | return elfcore_grok_note (abfd, note); | |
11473 | } | |
11474 | ||
0a1b45a2 | 11475 | static bool |
67cc5033 MK |
11476 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) |
11477 | { | |
11478 | if (note->type == NT_OPENBSD_PROCINFO) | |
11479 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
11480 | ||
11481 | if (note->type == NT_OPENBSD_REGS) | |
11482 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11483 | ||
11484 | if (note->type == NT_OPENBSD_FPREGS) | |
11485 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11486 | ||
11487 | if (note->type == NT_OPENBSD_XFPREGS) | |
11488 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
11489 | ||
11490 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 11491 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
11492 | |
11493 | if (note->type == NT_OPENBSD_WCOOKIE) | |
11494 | { | |
11495 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
11496 | SEC_HAS_CONTENTS); | |
11497 | ||
11498 | if (sect == NULL) | |
0a1b45a2 | 11499 | return false; |
67cc5033 MK |
11500 | sect->size = note->descsz; |
11501 | sect->filepos = note->descpos; | |
11502 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
11503 | ||
0a1b45a2 | 11504 | return true; |
67cc5033 MK |
11505 | } |
11506 | ||
0a1b45a2 | 11507 | return true; |
67cc5033 MK |
11508 | } |
11509 | ||
0a1b45a2 | 11510 | static bool |
d3fd4074 | 11511 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
11512 | { |
11513 | void *ddata = note->descdata; | |
11514 | char buf[100]; | |
11515 | char *name; | |
11516 | asection *sect; | |
f8843e87 AM |
11517 | short sig; |
11518 | unsigned flags; | |
07c6e936 | 11519 | |
80a04378 | 11520 | if (note->descsz < 16) |
0a1b45a2 | 11521 | return false; |
80a04378 | 11522 | |
07c6e936 | 11523 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 11524 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 11525 | |
f8843e87 AM |
11526 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
11527 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
11528 | ||
11529 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
11530 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
11531 | |
11532 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
11533 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
11534 | { | |
228e534f AM |
11535 | elf_tdata (abfd)->core->signal = sig; |
11536 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 11537 | } |
07c6e936 | 11538 | |
f8843e87 AM |
11539 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
11540 | do not come from signals so we make sure we set the current | |
11541 | thread just in case. */ | |
11542 | if (flags & 0x00000080) | |
228e534f | 11543 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
11544 | |
11545 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 11546 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 11547 | |
a50b1753 | 11548 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11549 | if (name == NULL) |
0a1b45a2 | 11550 | return false; |
07c6e936 NC |
11551 | strcpy (name, buf); |
11552 | ||
117ed4f8 | 11553 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11554 | if (sect == NULL) |
0a1b45a2 | 11555 | return false; |
07c6e936 | 11556 | |
07d6d2b8 AM |
11557 | sect->size = note->descsz; |
11558 | sect->filepos = note->descpos; | |
07c6e936 NC |
11559 | sect->alignment_power = 2; |
11560 | ||
11561 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
11562 | } | |
11563 | ||
0a1b45a2 | 11564 | static bool |
d69f560c KW |
11565 | elfcore_grok_nto_regs (bfd *abfd, |
11566 | Elf_Internal_Note *note, | |
d3fd4074 | 11567 | long tid, |
d69f560c | 11568 | char *base) |
07c6e936 NC |
11569 | { |
11570 | char buf[100]; | |
11571 | char *name; | |
11572 | asection *sect; | |
11573 | ||
d69f560c | 11574 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 11575 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 11576 | |
a50b1753 | 11577 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11578 | if (name == NULL) |
0a1b45a2 | 11579 | return false; |
07c6e936 NC |
11580 | strcpy (name, buf); |
11581 | ||
117ed4f8 | 11582 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11583 | if (sect == NULL) |
0a1b45a2 | 11584 | return false; |
07c6e936 | 11585 | |
07d6d2b8 AM |
11586 | sect->size = note->descsz; |
11587 | sect->filepos = note->descpos; | |
07c6e936 NC |
11588 | sect->alignment_power = 2; |
11589 | ||
f8843e87 | 11590 | /* This is the current thread. */ |
228e534f | 11591 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 11592 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 | 11593 | |
0a1b45a2 | 11594 | return true; |
07c6e936 NC |
11595 | } |
11596 | ||
11597 | #define BFD_QNT_CORE_INFO 7 | |
11598 | #define BFD_QNT_CORE_STATUS 8 | |
11599 | #define BFD_QNT_CORE_GREG 9 | |
11600 | #define BFD_QNT_CORE_FPREG 10 | |
11601 | ||
0a1b45a2 | 11602 | static bool |
217aa764 | 11603 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
11604 | { |
11605 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 11606 | tid from the previous call to pass down to the next gregs |
07c6e936 | 11607 | function. */ |
d3fd4074 | 11608 | static long tid = 1; |
07c6e936 NC |
11609 | |
11610 | switch (note->type) | |
11611 | { | |
d69f560c KW |
11612 | case BFD_QNT_CORE_INFO: |
11613 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
11614 | case BFD_QNT_CORE_STATUS: | |
11615 | return elfcore_grok_nto_status (abfd, note, &tid); | |
11616 | case BFD_QNT_CORE_GREG: | |
11617 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
11618 | case BFD_QNT_CORE_FPREG: | |
11619 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
11620 | default: | |
0a1b45a2 | 11621 | return true; |
07c6e936 NC |
11622 | } |
11623 | } | |
11624 | ||
0a1b45a2 | 11625 | static bool |
b15fa79e AM |
11626 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) |
11627 | { | |
11628 | char *name; | |
11629 | asection *sect; | |
11630 | size_t len; | |
11631 | ||
11632 | /* Use note name as section name. */ | |
11633 | len = note->namesz; | |
a50b1753 | 11634 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e | 11635 | if (name == NULL) |
0a1b45a2 | 11636 | return false; |
b15fa79e AM |
11637 | memcpy (name, note->namedata, len); |
11638 | name[len - 1] = '\0'; | |
11639 | ||
11640 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
11641 | if (sect == NULL) | |
0a1b45a2 | 11642 | return false; |
b15fa79e | 11643 | |
07d6d2b8 AM |
11644 | sect->size = note->descsz; |
11645 | sect->filepos = note->descpos; | |
b15fa79e AM |
11646 | sect->alignment_power = 1; |
11647 | ||
0a1b45a2 | 11648 | return true; |
b15fa79e AM |
11649 | } |
11650 | ||
7c76fa91 MS |
11651 | /* Function: elfcore_write_note |
11652 | ||
47d9a591 | 11653 | Inputs: |
a39f3346 | 11654 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
11655 | name of note |
11656 | type of note | |
11657 | data for note | |
11658 | size of data for note | |
11659 | ||
a39f3346 AM |
11660 | Writes note to end of buffer. ELF64 notes are written exactly as |
11661 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
11662 | that they ought to have 8-byte namesz and descsz field, and have | |
11663 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
11664 | ||
7c76fa91 | 11665 | Return: |
a39f3346 | 11666 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
11667 | |
11668 | char * | |
a39f3346 | 11669 | elfcore_write_note (bfd *abfd, |
217aa764 | 11670 | char *buf, |
a39f3346 | 11671 | int *bufsiz, |
217aa764 | 11672 | const char *name, |
a39f3346 | 11673 | int type, |
217aa764 | 11674 | const void *input, |
a39f3346 | 11675 | int size) |
7c76fa91 MS |
11676 | { |
11677 | Elf_External_Note *xnp; | |
d4c88bbb | 11678 | size_t namesz; |
d4c88bbb | 11679 | size_t newspace; |
a39f3346 | 11680 | char *dest; |
7c76fa91 | 11681 | |
d4c88bbb | 11682 | namesz = 0; |
d4c88bbb | 11683 | if (name != NULL) |
a39f3346 | 11684 | namesz = strlen (name) + 1; |
d4c88bbb | 11685 | |
a39f3346 | 11686 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11687 | |
a50b1753 | 11688 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11689 | if (buf == NULL) |
11690 | return buf; | |
a39f3346 | 11691 | dest = buf + *bufsiz; |
7c76fa91 MS |
11692 | *bufsiz += newspace; |
11693 | xnp = (Elf_External_Note *) dest; | |
11694 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11695 | H_PUT_32 (abfd, size, xnp->descsz); | |
11696 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11697 | dest = xnp->name; |
11698 | if (name != NULL) | |
11699 | { | |
11700 | memcpy (dest, name, namesz); | |
11701 | dest += namesz; | |
a39f3346 | 11702 | while (namesz & 3) |
d4c88bbb AM |
11703 | { |
11704 | *dest++ = '\0'; | |
a39f3346 | 11705 | ++namesz; |
d4c88bbb AM |
11706 | } |
11707 | } | |
11708 | memcpy (dest, input, size); | |
a39f3346 AM |
11709 | dest += size; |
11710 | while (size & 3) | |
11711 | { | |
11712 | *dest++ = '\0'; | |
11713 | ++size; | |
11714 | } | |
11715 | return buf; | |
7c76fa91 MS |
11716 | } |
11717 | ||
602f1657 AM |
11718 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11719 | possible string truncation. The "truncation" is not a bug. We | |
11720 | have an external representation of structs with fields that are not | |
11721 | necessarily NULL terminated and corresponding internal | |
11722 | representation fields that are one larger so that they can always | |
11723 | be NULL terminated. | |
11724 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11725 | diagnostics inside functions, giving a hard error if you try to use | |
11726 | the finer control available with later versions. | |
11727 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11728 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11729 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11730 | (*) Depending on your system header files! */ | |
d99b4b92 | 11731 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11732 | # pragma GCC diagnostic push |
11733 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11734 | #endif |
7c76fa91 | 11735 | char * |
217aa764 AM |
11736 | elfcore_write_prpsinfo (bfd *abfd, |
11737 | char *buf, | |
11738 | int *bufsiz, | |
11739 | const char *fname, | |
11740 | const char *psargs) | |
7c76fa91 | 11741 | { |
183e98be AM |
11742 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11743 | ||
11744 | if (bed->elf_backend_write_core_note != NULL) | |
11745 | { | |
11746 | char *ret; | |
11747 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11748 | NT_PRPSINFO, fname, psargs); | |
11749 | if (ret != NULL) | |
11750 | return ret; | |
11751 | } | |
7c76fa91 | 11752 | |
1f20dca5 | 11753 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11754 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11755 | if (bed->s->elfclass == ELFCLASS32) |
11756 | { | |
602f1657 | 11757 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11758 | psinfo32_t data; |
11759 | int note_type = NT_PSINFO; | |
602f1657 | 11760 | # else |
183e98be AM |
11761 | prpsinfo32_t data; |
11762 | int note_type = NT_PRPSINFO; | |
602f1657 | 11763 | # endif |
183e98be AM |
11764 | |
11765 | memset (&data, 0, sizeof (data)); | |
11766 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11767 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11768 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11769 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11770 | } |
11771 | else | |
602f1657 | 11772 | # endif |
183e98be | 11773 | { |
602f1657 | 11774 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11775 | psinfo_t data; |
11776 | int note_type = NT_PSINFO; | |
602f1657 | 11777 | # else |
183e98be AM |
11778 | prpsinfo_t data; |
11779 | int note_type = NT_PRPSINFO; | |
602f1657 | 11780 | # endif |
7c76fa91 | 11781 | |
183e98be AM |
11782 | memset (&data, 0, sizeof (data)); |
11783 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11784 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11785 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11786 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11787 | } |
7c76fa91 MS |
11788 | #endif /* PSINFO_T or PRPSINFO_T */ |
11789 | ||
1f20dca5 UW |
11790 | free (buf); |
11791 | return NULL; | |
11792 | } | |
d99b4b92 | 11793 | #if GCC_VERSION >= 8000 |
602f1657 | 11794 | # pragma GCC diagnostic pop |
d99b4b92 | 11795 | #endif |
1f20dca5 | 11796 | |
70a38d42 SDJ |
11797 | char * |
11798 | elfcore_write_linux_prpsinfo32 | |
11799 | (bfd *abfd, char *buf, int *bufsiz, | |
11800 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11801 | { | |
a2f63b2e MR |
11802 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11803 | { | |
11804 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11805 | ||
11806 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11807 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11808 | &data, sizeof (data)); | |
11809 | } | |
11810 | else | |
11811 | { | |
11812 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11813 | |
a2f63b2e MR |
11814 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11815 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11816 | &data, sizeof (data)); | |
11817 | } | |
70a38d42 SDJ |
11818 | } |
11819 | ||
11820 | char * | |
11821 | elfcore_write_linux_prpsinfo64 | |
11822 | (bfd *abfd, char *buf, int *bufsiz, | |
11823 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11824 | { | |
3c9a7b0d MR |
11825 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11826 | { | |
11827 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11828 | ||
11829 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11830 | return elfcore_write_note (abfd, buf, bufsiz, | |
11831 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11832 | } | |
11833 | else | |
11834 | { | |
11835 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11836 | |
3c9a7b0d MR |
11837 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11838 | return elfcore_write_note (abfd, buf, bufsiz, | |
11839 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11840 | } | |
70a38d42 SDJ |
11841 | } |
11842 | ||
7c76fa91 | 11843 | char * |
217aa764 AM |
11844 | elfcore_write_prstatus (bfd *abfd, |
11845 | char *buf, | |
11846 | int *bufsiz, | |
11847 | long pid, | |
11848 | int cursig, | |
11849 | const void *gregs) | |
7c76fa91 | 11850 | { |
183e98be | 11851 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11852 | |
183e98be AM |
11853 | if (bed->elf_backend_write_core_note != NULL) |
11854 | { | |
11855 | char *ret; | |
11856 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11857 | NT_PRSTATUS, | |
11858 | pid, cursig, gregs); | |
11859 | if (ret != NULL) | |
11860 | return ret; | |
11861 | } | |
11862 | ||
1f20dca5 | 11863 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11864 | #if defined (HAVE_PRSTATUS32_T) |
11865 | if (bed->s->elfclass == ELFCLASS32) | |
11866 | { | |
11867 | prstatus32_t prstat; | |
11868 | ||
11869 | memset (&prstat, 0, sizeof (prstat)); | |
11870 | prstat.pr_pid = pid; | |
11871 | prstat.pr_cursig = cursig; | |
11872 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11873 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11874 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11875 | } | |
11876 | else | |
11877 | #endif | |
11878 | { | |
11879 | prstatus_t prstat; | |
11880 | ||
11881 | memset (&prstat, 0, sizeof (prstat)); | |
11882 | prstat.pr_pid = pid; | |
11883 | prstat.pr_cursig = cursig; | |
11884 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11885 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11886 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11887 | } | |
7c76fa91 MS |
11888 | #endif /* HAVE_PRSTATUS_T */ |
11889 | ||
1f20dca5 UW |
11890 | free (buf); |
11891 | return NULL; | |
11892 | } | |
11893 | ||
51316059 MS |
11894 | #if defined (HAVE_LWPSTATUS_T) |
11895 | char * | |
217aa764 AM |
11896 | elfcore_write_lwpstatus (bfd *abfd, |
11897 | char *buf, | |
11898 | int *bufsiz, | |
11899 | long pid, | |
11900 | int cursig, | |
11901 | const void *gregs) | |
51316059 MS |
11902 | { |
11903 | lwpstatus_t lwpstat; | |
183e98be | 11904 | const char *note_name = "CORE"; |
51316059 MS |
11905 | |
11906 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11907 | lwpstat.pr_lwpid = pid >> 16; | |
11908 | lwpstat.pr_cursig = cursig; | |
11909 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11910 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11911 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11912 | #if !defined(gregs) | |
11913 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11914 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11915 | #else | |
11916 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11917 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11918 | #endif | |
11919 | #endif | |
47d9a591 | 11920 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11921 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11922 | } | |
11923 | #endif /* HAVE_LWPSTATUS_T */ | |
11924 | ||
7c76fa91 MS |
11925 | #if defined (HAVE_PSTATUS_T) |
11926 | char * | |
217aa764 AM |
11927 | elfcore_write_pstatus (bfd *abfd, |
11928 | char *buf, | |
11929 | int *bufsiz, | |
11930 | long pid, | |
6c10990d NC |
11931 | int cursig ATTRIBUTE_UNUSED, |
11932 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11933 | { |
183e98be AM |
11934 | const char *note_name = "CORE"; |
11935 | #if defined (HAVE_PSTATUS32_T) | |
11936 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11937 | |
183e98be AM |
11938 | if (bed->s->elfclass == ELFCLASS32) |
11939 | { | |
11940 | pstatus32_t pstat; | |
11941 | ||
11942 | memset (&pstat, 0, sizeof (pstat)); | |
11943 | pstat.pr_pid = pid & 0xffff; | |
11944 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11945 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11946 | return buf; | |
11947 | } | |
11948 | else | |
11949 | #endif | |
11950 | { | |
11951 | pstatus_t pstat; | |
11952 | ||
11953 | memset (&pstat, 0, sizeof (pstat)); | |
11954 | pstat.pr_pid = pid & 0xffff; | |
11955 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11956 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11957 | return buf; | |
11958 | } | |
7c76fa91 MS |
11959 | } |
11960 | #endif /* HAVE_PSTATUS_T */ | |
11961 | ||
11962 | char * | |
217aa764 AM |
11963 | elfcore_write_prfpreg (bfd *abfd, |
11964 | char *buf, | |
11965 | int *bufsiz, | |
11966 | const void *fpregs, | |
11967 | int size) | |
7c76fa91 | 11968 | { |
183e98be | 11969 | const char *note_name = "CORE"; |
47d9a591 | 11970 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11971 | note_name, NT_FPREGSET, fpregs, size); |
11972 | } | |
11973 | ||
11974 | char * | |
217aa764 AM |
11975 | elfcore_write_prxfpreg (bfd *abfd, |
11976 | char *buf, | |
11977 | int *bufsiz, | |
11978 | const void *xfpregs, | |
11979 | int size) | |
7c76fa91 MS |
11980 | { |
11981 | char *note_name = "LINUX"; | |
47d9a591 | 11982 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11983 | note_name, NT_PRXFPREG, xfpregs, size); |
11984 | } | |
11985 | ||
4339cae0 L |
11986 | char * |
11987 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11988 | const void *xfpregs, int size) | |
11989 | { | |
97de3545 JB |
11990 | char *note_name; |
11991 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11992 | note_name = "FreeBSD"; | |
11993 | else | |
11994 | note_name = "LINUX"; | |
4339cae0 L |
11995 | return elfcore_write_note (abfd, buf, bufsiz, |
11996 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11997 | } | |
11998 | ||
b5c2367c JB |
11999 | char * |
12000 | elfcore_write_x86_segbases (bfd *abfd, char *buf, int *bufsiz, | |
12001 | const void *regs, int size) | |
12002 | { | |
12003 | char *note_name = "FreeBSD"; | |
12004 | return elfcore_write_note (abfd, buf, bufsiz, | |
12005 | note_name, NT_FREEBSD_X86_SEGBASES, regs, size); | |
12006 | } | |
12007 | ||
97753bd5 AM |
12008 | char * |
12009 | elfcore_write_ppc_vmx (bfd *abfd, | |
12010 | char *buf, | |
12011 | int *bufsiz, | |
12012 | const void *ppc_vmx, | |
12013 | int size) | |
12014 | { | |
12015 | char *note_name = "LINUX"; | |
12016 | return elfcore_write_note (abfd, buf, bufsiz, | |
12017 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
12018 | } | |
12019 | ||
89eeb0bc LM |
12020 | char * |
12021 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
12022 | char *buf, |
12023 | int *bufsiz, | |
12024 | const void *ppc_vsx, | |
12025 | int size) | |
89eeb0bc LM |
12026 | { |
12027 | char *note_name = "LINUX"; | |
12028 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12029 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
12030 | } |
12031 | ||
cb2366c1 EBM |
12032 | char * |
12033 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
12034 | char *buf, |
12035 | int *bufsiz, | |
12036 | const void *ppc_tar, | |
12037 | int size) | |
cb2366c1 EBM |
12038 | { |
12039 | char *note_name = "LINUX"; | |
12040 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12041 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
12042 | } |
12043 | ||
12044 | char * | |
12045 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
12046 | char *buf, |
12047 | int *bufsiz, | |
12048 | const void *ppc_ppr, | |
12049 | int size) | |
cb2366c1 EBM |
12050 | { |
12051 | char *note_name = "LINUX"; | |
12052 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12053 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
12054 | } |
12055 | ||
12056 | char * | |
12057 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
12058 | char *buf, |
12059 | int *bufsiz, | |
12060 | const void *ppc_dscr, | |
12061 | int size) | |
cb2366c1 EBM |
12062 | { |
12063 | char *note_name = "LINUX"; | |
12064 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12065 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
12066 | } |
12067 | ||
12068 | char * | |
12069 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
12070 | char *buf, |
12071 | int *bufsiz, | |
12072 | const void *ppc_ebb, | |
12073 | int size) | |
cb2366c1 EBM |
12074 | { |
12075 | char *note_name = "LINUX"; | |
12076 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12077 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
12078 | } |
12079 | ||
12080 | char * | |
12081 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
12082 | char *buf, |
12083 | int *bufsiz, | |
12084 | const void *ppc_pmu, | |
12085 | int size) | |
cb2366c1 EBM |
12086 | { |
12087 | char *note_name = "LINUX"; | |
12088 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12089 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
12090 | } |
12091 | ||
12092 | char * | |
12093 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
12094 | char *buf, |
12095 | int *bufsiz, | |
12096 | const void *ppc_tm_cgpr, | |
12097 | int size) | |
cb2366c1 EBM |
12098 | { |
12099 | char *note_name = "LINUX"; | |
12100 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12101 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
12102 | } |
12103 | ||
12104 | char * | |
12105 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
12106 | char *buf, |
12107 | int *bufsiz, | |
12108 | const void *ppc_tm_cfpr, | |
12109 | int size) | |
cb2366c1 EBM |
12110 | { |
12111 | char *note_name = "LINUX"; | |
12112 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12113 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
12114 | } |
12115 | ||
12116 | char * | |
12117 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
12118 | char *buf, |
12119 | int *bufsiz, | |
12120 | const void *ppc_tm_cvmx, | |
12121 | int size) | |
cb2366c1 EBM |
12122 | { |
12123 | char *note_name = "LINUX"; | |
12124 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12125 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
12126 | } |
12127 | ||
12128 | char * | |
12129 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
12130 | char *buf, |
12131 | int *bufsiz, | |
12132 | const void *ppc_tm_cvsx, | |
12133 | int size) | |
cb2366c1 EBM |
12134 | { |
12135 | char *note_name = "LINUX"; | |
12136 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12137 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
12138 | } |
12139 | ||
12140 | char * | |
12141 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
12142 | char *buf, |
12143 | int *bufsiz, | |
12144 | const void *ppc_tm_spr, | |
12145 | int size) | |
cb2366c1 EBM |
12146 | { |
12147 | char *note_name = "LINUX"; | |
12148 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12149 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
12150 | } |
12151 | ||
12152 | char * | |
12153 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
12154 | char *buf, |
12155 | int *bufsiz, | |
12156 | const void *ppc_tm_ctar, | |
12157 | int size) | |
cb2366c1 EBM |
12158 | { |
12159 | char *note_name = "LINUX"; | |
12160 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12161 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
12162 | } |
12163 | ||
12164 | char * | |
12165 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
12166 | char *buf, |
12167 | int *bufsiz, | |
12168 | const void *ppc_tm_cppr, | |
12169 | int size) | |
cb2366c1 EBM |
12170 | { |
12171 | char *note_name = "LINUX"; | |
12172 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12173 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
12174 | } |
12175 | ||
12176 | char * | |
12177 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
12178 | char *buf, |
12179 | int *bufsiz, | |
12180 | const void *ppc_tm_cdscr, | |
12181 | int size) | |
cb2366c1 EBM |
12182 | { |
12183 | char *note_name = "LINUX"; | |
12184 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 12185 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
12186 | } |
12187 | ||
0675e188 UW |
12188 | static char * |
12189 | elfcore_write_s390_high_gprs (bfd *abfd, | |
12190 | char *buf, | |
12191 | int *bufsiz, | |
12192 | const void *s390_high_gprs, | |
12193 | int size) | |
12194 | { | |
12195 | char *note_name = "LINUX"; | |
12196 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12197 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
12198 | s390_high_gprs, size); |
12199 | } | |
12200 | ||
d7eeb400 MS |
12201 | char * |
12202 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
12203 | char *buf, |
12204 | int *bufsiz, | |
12205 | const void *s390_timer, | |
12206 | int size) | |
d7eeb400 MS |
12207 | { |
12208 | char *note_name = "LINUX"; | |
12209 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12210 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
12211 | } |
12212 | ||
12213 | char * | |
12214 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
12215 | char *buf, |
12216 | int *bufsiz, | |
12217 | const void *s390_todcmp, | |
12218 | int size) | |
d7eeb400 MS |
12219 | { |
12220 | char *note_name = "LINUX"; | |
12221 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12222 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
12223 | } |
12224 | ||
12225 | char * | |
12226 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
12227 | char *buf, |
12228 | int *bufsiz, | |
12229 | const void *s390_todpreg, | |
12230 | int size) | |
d7eeb400 MS |
12231 | { |
12232 | char *note_name = "LINUX"; | |
12233 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12234 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
12235 | } |
12236 | ||
12237 | char * | |
12238 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
12239 | char *buf, |
12240 | int *bufsiz, | |
12241 | const void *s390_ctrs, | |
12242 | int size) | |
d7eeb400 MS |
12243 | { |
12244 | char *note_name = "LINUX"; | |
12245 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12246 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
12247 | } |
12248 | ||
12249 | char * | |
12250 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
12251 | char *buf, |
12252 | int *bufsiz, | |
12253 | const void *s390_prefix, | |
12254 | int size) | |
d7eeb400 MS |
12255 | { |
12256 | char *note_name = "LINUX"; | |
12257 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12258 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
12259 | } |
12260 | ||
355b81d9 UW |
12261 | char * |
12262 | elfcore_write_s390_last_break (bfd *abfd, | |
12263 | char *buf, | |
12264 | int *bufsiz, | |
12265 | const void *s390_last_break, | |
12266 | int size) | |
12267 | { | |
12268 | char *note_name = "LINUX"; | |
12269 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12270 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
12271 | s390_last_break, size); |
12272 | } | |
12273 | ||
12274 | char * | |
12275 | elfcore_write_s390_system_call (bfd *abfd, | |
12276 | char *buf, | |
12277 | int *bufsiz, | |
12278 | const void *s390_system_call, | |
12279 | int size) | |
12280 | { | |
12281 | char *note_name = "LINUX"; | |
12282 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12283 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
12284 | s390_system_call, size); |
12285 | } | |
12286 | ||
abb3f6cc NC |
12287 | char * |
12288 | elfcore_write_s390_tdb (bfd *abfd, | |
12289 | char *buf, | |
12290 | int *bufsiz, | |
12291 | const void *s390_tdb, | |
12292 | int size) | |
12293 | { | |
12294 | char *note_name = "LINUX"; | |
12295 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 12296 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
12297 | } |
12298 | ||
4ef9f41a AA |
12299 | char * |
12300 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
12301 | char *buf, | |
12302 | int *bufsiz, | |
12303 | const void *s390_vxrs_low, | |
12304 | int size) | |
12305 | { | |
12306 | char *note_name = "LINUX"; | |
12307 | return elfcore_write_note (abfd, buf, bufsiz, | |
12308 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
12309 | } | |
12310 | ||
12311 | char * | |
12312 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
12313 | char *buf, | |
12314 | int *bufsiz, | |
12315 | const void *s390_vxrs_high, | |
12316 | int size) | |
12317 | { | |
12318 | char *note_name = "LINUX"; | |
12319 | return elfcore_write_note (abfd, buf, bufsiz, | |
12320 | note_name, NT_S390_VXRS_HIGH, | |
12321 | s390_vxrs_high, size); | |
12322 | } | |
12323 | ||
88ab90e8 AA |
12324 | char * |
12325 | elfcore_write_s390_gs_cb (bfd *abfd, | |
12326 | char *buf, | |
12327 | int *bufsiz, | |
12328 | const void *s390_gs_cb, | |
12329 | int size) | |
12330 | { | |
12331 | char *note_name = "LINUX"; | |
12332 | return elfcore_write_note (abfd, buf, bufsiz, | |
12333 | note_name, NT_S390_GS_CB, | |
12334 | s390_gs_cb, size); | |
12335 | } | |
12336 | ||
12337 | char * | |
12338 | elfcore_write_s390_gs_bc (bfd *abfd, | |
12339 | char *buf, | |
12340 | int *bufsiz, | |
12341 | const void *s390_gs_bc, | |
12342 | int size) | |
12343 | { | |
12344 | char *note_name = "LINUX"; | |
12345 | return elfcore_write_note (abfd, buf, bufsiz, | |
12346 | note_name, NT_S390_GS_BC, | |
12347 | s390_gs_bc, size); | |
12348 | } | |
12349 | ||
faa9a424 UW |
12350 | char * |
12351 | elfcore_write_arm_vfp (bfd *abfd, | |
12352 | char *buf, | |
12353 | int *bufsiz, | |
12354 | const void *arm_vfp, | |
12355 | int size) | |
12356 | { | |
12357 | char *note_name = "LINUX"; | |
12358 | return elfcore_write_note (abfd, buf, bufsiz, | |
12359 | note_name, NT_ARM_VFP, arm_vfp, size); | |
12360 | } | |
12361 | ||
652451f8 YZ |
12362 | char * |
12363 | elfcore_write_aarch_tls (bfd *abfd, | |
12364 | char *buf, | |
12365 | int *bufsiz, | |
12366 | const void *aarch_tls, | |
12367 | int size) | |
12368 | { | |
12369 | char *note_name = "LINUX"; | |
12370 | return elfcore_write_note (abfd, buf, bufsiz, | |
12371 | note_name, NT_ARM_TLS, aarch_tls, size); | |
12372 | } | |
12373 | ||
12374 | char * | |
12375 | elfcore_write_aarch_hw_break (bfd *abfd, | |
12376 | char *buf, | |
12377 | int *bufsiz, | |
12378 | const void *aarch_hw_break, | |
12379 | int size) | |
12380 | { | |
12381 | char *note_name = "LINUX"; | |
12382 | return elfcore_write_note (abfd, buf, bufsiz, | |
12383 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
12384 | } | |
12385 | ||
12386 | char * | |
12387 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
12388 | char *buf, | |
12389 | int *bufsiz, | |
12390 | const void *aarch_hw_watch, | |
12391 | int size) | |
12392 | { | |
12393 | char *note_name = "LINUX"; | |
12394 | return elfcore_write_note (abfd, buf, bufsiz, | |
12395 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
12396 | } | |
12397 | ||
ad1cc4e4 AH |
12398 | char * |
12399 | elfcore_write_aarch_sve (bfd *abfd, | |
12400 | char *buf, | |
12401 | int *bufsiz, | |
12402 | const void *aarch_sve, | |
12403 | int size) | |
12404 | { | |
12405 | char *note_name = "LINUX"; | |
12406 | return elfcore_write_note (abfd, buf, bufsiz, | |
12407 | note_name, NT_ARM_SVE, aarch_sve, size); | |
12408 | } | |
12409 | ||
e6c3b5bf AH |
12410 | char * |
12411 | elfcore_write_aarch_pauth (bfd *abfd, | |
12412 | char *buf, | |
12413 | int *bufsiz, | |
12414 | const void *aarch_pauth, | |
12415 | int size) | |
12416 | { | |
12417 | char *note_name = "LINUX"; | |
12418 | return elfcore_write_note (abfd, buf, bufsiz, | |
12419 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
12420 | } | |
12421 | ||
f0bbe8ba LM |
12422 | char * |
12423 | elfcore_write_aarch_mte (bfd *abfd, | |
12424 | char *buf, | |
12425 | int *bufsiz, | |
12426 | const void *aarch_mte, | |
12427 | int size) | |
12428 | { | |
12429 | char *note_name = "LINUX"; | |
12430 | return elfcore_write_note (abfd, buf, bufsiz, | |
12431 | note_name, NT_ARM_TAGGED_ADDR_CTRL, | |
12432 | aarch_mte, | |
12433 | size); | |
12434 | } | |
12435 | ||
27456742 AK |
12436 | char * |
12437 | elfcore_write_arc_v2 (bfd *abfd, | |
12438 | char *buf, | |
12439 | int *bufsiz, | |
12440 | const void *arc_v2, | |
12441 | int size) | |
12442 | { | |
12443 | char *note_name = "LINUX"; | |
12444 | return elfcore_write_note (abfd, buf, bufsiz, | |
12445 | note_name, NT_ARC_V2, arc_v2, size); | |
12446 | } | |
12447 | ||
e214f8db | 12448 | char * |
12449 | elfcore_write_loongarch_cpucfg (bfd *abfd, | |
12450 | char *buf, | |
12451 | int *bufsiz, | |
12452 | const void *loongarch_cpucfg, | |
12453 | int size) | |
12454 | { | |
12455 | char *note_name = "LINUX"; | |
12456 | return elfcore_write_note (abfd, buf, bufsiz, | |
12457 | note_name, NT_LARCH_CPUCFG, | |
12458 | loongarch_cpucfg, size); | |
12459 | } | |
12460 | ||
12461 | char * | |
12462 | elfcore_write_loongarch_lbt (bfd *abfd, | |
12463 | char *buf, | |
12464 | int *bufsiz, | |
12465 | const void *loongarch_lbt, | |
12466 | int size) | |
12467 | { | |
12468 | char *note_name = "LINUX"; | |
12469 | return elfcore_write_note (abfd, buf, bufsiz, | |
12470 | note_name, NT_LARCH_LBT, loongarch_lbt, size); | |
12471 | } | |
12472 | ||
12473 | char * | |
12474 | elfcore_write_loongarch_lsx (bfd *abfd, | |
12475 | char *buf, | |
12476 | int *bufsiz, | |
12477 | const void *loongarch_lsx, | |
12478 | int size) | |
12479 | { | |
12480 | char *note_name = "LINUX"; | |
12481 | return elfcore_write_note (abfd, buf, bufsiz, | |
12482 | note_name, NT_LARCH_LSX, loongarch_lsx, size); | |
12483 | } | |
12484 | ||
12485 | char * | |
12486 | elfcore_write_loongarch_lasx (bfd *abfd, | |
12487 | char *buf, | |
12488 | int *bufsiz, | |
12489 | const void *loongarch_lasx, | |
12490 | int size) | |
12491 | { | |
12492 | char *note_name = "LINUX"; | |
12493 | return elfcore_write_note (abfd, buf, bufsiz, | |
12494 | note_name, NT_LARCH_LASX, loongarch_lasx, size); | |
12495 | } | |
12496 | ||
db6092f3 AB |
12497 | /* Write the buffer of csr values in CSRS (length SIZE) into the note |
12498 | buffer BUF and update *BUFSIZ. ABFD is the bfd the note is being | |
12499 | written into. Return a pointer to the new start of the note buffer, to | |
12500 | replace BUF which may no longer be valid. */ | |
12501 | ||
12502 | char * | |
12503 | elfcore_write_riscv_csr (bfd *abfd, | |
11c6a7c6 AM |
12504 | char *buf, |
12505 | int *bufsiz, | |
12506 | const void *csrs, | |
12507 | int size) | |
db6092f3 AB |
12508 | { |
12509 | const char *note_name = "GDB"; | |
12510 | return elfcore_write_note (abfd, buf, bufsiz, | |
12511 | note_name, NT_RISCV_CSR, csrs, size); | |
12512 | } | |
12513 | ||
b63a5e38 AB |
12514 | /* Write the target description (a string) pointed to by TDESC, length |
12515 | SIZE, into the note buffer BUF, and update *BUFSIZ. ABFD is the bfd the | |
12516 | note is being written into. Return a pointer to the new start of the | |
12517 | note buffer, to replace BUF which may no longer be valid. */ | |
12518 | ||
12519 | char * | |
12520 | elfcore_write_gdb_tdesc (bfd *abfd, | |
12521 | char *buf, | |
12522 | int *bufsiz, | |
12523 | const void *tdesc, | |
12524 | int size) | |
12525 | { | |
12526 | const char *note_name = "GDB"; | |
12527 | return elfcore_write_note (abfd, buf, bufsiz, | |
11c6a7c6 | 12528 | note_name, NT_GDB_TDESC, tdesc, size); |
b63a5e38 AB |
12529 | } |
12530 | ||
bb864ac1 CES |
12531 | char * |
12532 | elfcore_write_register_note (bfd *abfd, | |
12533 | char *buf, | |
12534 | int *bufsiz, | |
12535 | const char *section, | |
12536 | const void *data, | |
12537 | int size) | |
12538 | { | |
12539 | if (strcmp (section, ".reg2") == 0) | |
12540 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
12541 | if (strcmp (section, ".reg-xfp") == 0) | |
12542 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
12543 | if (strcmp (section, ".reg-xstate") == 0) |
12544 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
b5c2367c JB |
12545 | if (strcmp (section, ".reg-x86-segbases") == 0) |
12546 | return elfcore_write_x86_segbases (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12547 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
12548 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
12549 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
12550 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
12551 | if (strcmp (section, ".reg-ppc-tar") == 0) |
12552 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
12553 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
12554 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
12555 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
12556 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
12557 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
12558 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
12559 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
12560 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
12561 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
12562 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
12563 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
12564 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
12565 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
12566 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
12567 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
12568 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
12569 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
12570 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
12571 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
12572 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
12573 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
12574 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
12575 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
12576 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
12577 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
12578 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
12579 | if (strcmp (section, ".reg-s390-timer") == 0) |
12580 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
12581 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
12582 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
12583 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
12584 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
12585 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
12586 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
12587 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
12588 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
12589 | if (strcmp (section, ".reg-s390-last-break") == 0) |
12590 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
12591 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
12592 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
12593 | if (strcmp (section, ".reg-s390-tdb") == 0) |
12594 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
12595 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
12596 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
12597 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
12598 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
12599 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
12600 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
12601 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
12602 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
12603 | if (strcmp (section, ".reg-arm-vfp") == 0) |
12604 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
12605 | if (strcmp (section, ".reg-aarch-tls") == 0) |
12606 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
12607 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
12608 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
12609 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
12610 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
12611 | if (strcmp (section, ".reg-aarch-sve") == 0) |
12612 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
12613 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
12614 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
f0bbe8ba LM |
12615 | if (strcmp (section, ".reg-aarch-mte") == 0) |
12616 | return elfcore_write_aarch_mte (abfd, buf, bufsiz, data, size); | |
27456742 AK |
12617 | if (strcmp (section, ".reg-arc-v2") == 0) |
12618 | return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); | |
b63a5e38 AB |
12619 | if (strcmp (section, ".gdb-tdesc") == 0) |
12620 | return elfcore_write_gdb_tdesc (abfd, buf, bufsiz, data, size); | |
db6092f3 AB |
12621 | if (strcmp (section, ".reg-riscv-csr") == 0) |
12622 | return elfcore_write_riscv_csr (abfd, buf, bufsiz, data, size); | |
e214f8db | 12623 | if (strcmp (section, ".reg-loongarch-cpucfg") == 0) |
12624 | return elfcore_write_loongarch_cpucfg (abfd, buf, bufsiz, data, size); | |
12625 | if (strcmp (section, ".reg-loongarch-lbt") == 0) | |
12626 | return elfcore_write_loongarch_lbt (abfd, buf, bufsiz, data, size); | |
12627 | if (strcmp (section, ".reg-loongarch-lsx") == 0) | |
12628 | return elfcore_write_loongarch_lsx (abfd, buf, bufsiz, data, size); | |
12629 | if (strcmp (section, ".reg-loongarch-lasx") == 0) | |
12630 | return elfcore_write_loongarch_lasx (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12631 | return NULL; |
12632 | } | |
12633 | ||
4cb1265b MS |
12634 | char * |
12635 | elfcore_write_file_note (bfd *obfd, char *note_data, int *note_size, | |
12636 | const void *buf, int bufsiz) | |
12637 | { | |
12638 | return elfcore_write_note (obfd, note_data, note_size, | |
12639 | "CORE", NT_FILE, buf, bufsiz); | |
12640 | } | |
12641 | ||
0a1b45a2 | 12642 | static bool |
276da9b3 L |
12643 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
12644 | size_t align) | |
252b5132 | 12645 | { |
c044fabd | 12646 | char *p; |
252b5132 | 12647 | |
276da9b3 L |
12648 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
12649 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
12650 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
12651 | align is less than 4, we use 4 byte alignment. */ | |
12652 | if (align < 4) | |
12653 | align = 4; | |
ef135d43 | 12654 | if (align != 4 && align != 8) |
0a1b45a2 | 12655 | return false; |
276da9b3 | 12656 | |
252b5132 RH |
12657 | p = buf; |
12658 | while (p < buf + size) | |
12659 | { | |
c044fabd | 12660 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
12661 | Elf_Internal_Note in; |
12662 | ||
baea7ef1 | 12663 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
0a1b45a2 | 12664 | return false; |
baea7ef1 | 12665 | |
dc810e39 | 12666 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 12667 | |
dc810e39 | 12668 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 12669 | in.namedata = xnp->name; |
baea7ef1 | 12670 | if (in.namesz > buf - in.namedata + size) |
0a1b45a2 | 12671 | return false; |
252b5132 | 12672 | |
dc810e39 | 12673 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 12674 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 12675 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
12676 | if (in.descsz != 0 |
12677 | && (in.descdata >= buf + size | |
12678 | || in.descsz > buf - in.descdata + size)) | |
0a1b45a2 | 12679 | return false; |
252b5132 | 12680 | |
718175fa | 12681 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 12682 | { |
718175fa | 12683 | default: |
0a1b45a2 | 12684 | return true; |
718175fa JK |
12685 | |
12686 | case bfd_core: | |
f64e188b | 12687 | { |
8acbedd6 | 12688 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 12689 | struct |
718175fa | 12690 | { |
f64e188b | 12691 | const char * string; |
8acbedd6 | 12692 | size_t len; |
0a1b45a2 | 12693 | bool (*func) (bfd *, Elf_Internal_Note *); |
718175fa | 12694 | } |
f64e188b | 12695 | grokers[] = |
b15fa79e | 12696 | { |
8acbedd6 | 12697 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 12698 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 | 12699 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
6420dd27 | 12700 | GROKER_ELEMENT ("OpenBSD", elfcore_grok_openbsd_note), |
8acbedd6 | 12701 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), |
864619bb | 12702 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
6420dd27 LB |
12703 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note), |
12704 | GROKER_ELEMENT ("CORE", elfcore_grok_solaris_note) | |
f64e188b | 12705 | }; |
8acbedd6 | 12706 | #undef GROKER_ELEMENT |
f64e188b NC |
12707 | int i; |
12708 | ||
12709 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
12710 | { |
12711 | if (in.namesz >= grokers[i].len | |
12712 | && strncmp (in.namedata, grokers[i].string, | |
12713 | grokers[i].len) == 0) | |
12714 | { | |
12715 | if (! grokers[i].func (abfd, & in)) | |
0a1b45a2 | 12716 | return false; |
8acbedd6 KS |
12717 | break; |
12718 | } | |
12719 | } | |
f64e188b NC |
12720 | break; |
12721 | } | |
718175fa JK |
12722 | |
12723 | case bfd_object: | |
12724 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
12725 | { | |
12726 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
0a1b45a2 | 12727 | return false; |
718175fa | 12728 | } |
e21e5835 NC |
12729 | else if (in.namesz == sizeof "stapsdt" |
12730 | && strcmp (in.namedata, "stapsdt") == 0) | |
12731 | { | |
12732 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
0a1b45a2 | 12733 | return false; |
e21e5835 | 12734 | } |
718175fa | 12735 | break; |
08a40648 | 12736 | } |
252b5132 | 12737 | |
276da9b3 | 12738 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
12739 | } |
12740 | ||
0a1b45a2 | 12741 | return true; |
718175fa JK |
12742 | } |
12743 | ||
0a1b45a2 | 12744 | bool |
276da9b3 L |
12745 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
12746 | size_t align) | |
718175fa JK |
12747 | { |
12748 | char *buf; | |
12749 | ||
957e1fc1 | 12750 | if (size == 0 || (size + 1) == 0) |
0a1b45a2 | 12751 | return true; |
718175fa JK |
12752 | |
12753 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
0a1b45a2 | 12754 | return false; |
718175fa | 12755 | |
2bb3687b | 12756 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa | 12757 | if (buf == NULL) |
0a1b45a2 | 12758 | return false; |
718175fa | 12759 | |
f64e188b NC |
12760 | /* PR 17512: file: ec08f814 |
12761 | 0-termintate the buffer so that string searches will not overflow. */ | |
12762 | buf[size] = 0; | |
12763 | ||
2bb3687b | 12764 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
12765 | { |
12766 | free (buf); | |
0a1b45a2 | 12767 | return false; |
718175fa JK |
12768 | } |
12769 | ||
252b5132 | 12770 | free (buf); |
0a1b45a2 | 12771 | return true; |
252b5132 | 12772 | } |
98d8431c JB |
12773 | \f |
12774 | /* Providing external access to the ELF program header table. */ | |
12775 | ||
12776 | /* Return an upper bound on the number of bytes required to store a | |
12777 | copy of ABFD's program header table entries. Return -1 if an error | |
12778 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12779 | |
98d8431c | 12780 | long |
217aa764 | 12781 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
12782 | { |
12783 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12784 | { | |
12785 | bfd_set_error (bfd_error_wrong_format); | |
12786 | return -1; | |
12787 | } | |
12788 | ||
936e320b | 12789 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
12790 | } |
12791 | ||
98d8431c JB |
12792 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
12793 | will be stored as an array of Elf_Internal_Phdr structures, as | |
12794 | defined in include/elf/internal.h. To find out how large the | |
12795 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
12796 | ||
12797 | Return the number of program header table entries read, or -1 if an | |
12798 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12799 | |
98d8431c | 12800 | int |
217aa764 | 12801 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
12802 | { |
12803 | int num_phdrs; | |
12804 | ||
12805 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12806 | { | |
12807 | bfd_set_error (bfd_error_wrong_format); | |
12808 | return -1; | |
12809 | } | |
12810 | ||
12811 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
12812 | if (num_phdrs != 0) |
12813 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
12814 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
12815 | |
12816 | return num_phdrs; | |
12817 | } | |
ae4221d7 | 12818 | |
db6751f2 | 12819 | enum elf_reloc_type_class |
7e612e98 AM |
12820 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
12821 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12822 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
12823 | { |
12824 | return reloc_class_normal; | |
12825 | } | |
f8df10f4 | 12826 | |
47d9a591 | 12827 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12828 | relocation against a local symbol. */ |
12829 | ||
12830 | bfd_vma | |
217aa764 AM |
12831 | _bfd_elf_rela_local_sym (bfd *abfd, |
12832 | Elf_Internal_Sym *sym, | |
8517fae7 | 12833 | asection **psec, |
217aa764 | 12834 | Elf_Internal_Rela *rel) |
f8df10f4 | 12835 | { |
8517fae7 | 12836 | asection *sec = *psec; |
f8df10f4 JJ |
12837 | bfd_vma relocation; |
12838 | ||
6835821b AM |
12839 | relocation = (sec->output_section->vma |
12840 | + sec->output_offset | |
12841 | + sym->st_value); | |
f8df10f4 | 12842 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12843 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12844 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12845 | { |
f8df10f4 | 12846 | rel->r_addend = |
8517fae7 | 12847 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12848 | elf_section_data (sec)->sec_info, |
753731ee AM |
12849 | sym->st_value + rel->r_addend); |
12850 | if (sec != *psec) | |
12851 | { | |
12852 | /* If we have changed the section, and our original section is | |
12853 | marked with SEC_EXCLUDE, it means that the original | |
12854 | SEC_MERGE section has been completely subsumed in some | |
12855 | other SEC_MERGE section. In this case, we need to leave | |
12856 | some info around for --emit-relocs. */ | |
12857 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12858 | sec->kept_section = *psec; | |
12859 | sec = *psec; | |
12860 | } | |
8517fae7 AM |
12861 | rel->r_addend -= relocation; |
12862 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12863 | } |
12864 | return relocation; | |
12865 | } | |
c629eae0 JJ |
12866 | |
12867 | bfd_vma | |
217aa764 AM |
12868 | _bfd_elf_rel_local_sym (bfd *abfd, |
12869 | Elf_Internal_Sym *sym, | |
12870 | asection **psec, | |
12871 | bfd_vma addend) | |
47d9a591 | 12872 | { |
c629eae0 JJ |
12873 | asection *sec = *psec; |
12874 | ||
6835821b | 12875 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12876 | return sym->st_value + addend; |
12877 | ||
12878 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12879 | elf_section_data (sec)->sec_info, |
753731ee | 12880 | sym->st_value + addend); |
c629eae0 JJ |
12881 | } |
12882 | ||
37b01f6a DG |
12883 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12884 | the new offset within the section, based upon changes made to the | |
12885 | section. Returns -1 if the offset is now invalid. | |
12886 | The offset (in abnd out) is in target sized bytes, however big a | |
12887 | byte may be. */ | |
12888 | ||
c629eae0 | 12889 | bfd_vma |
217aa764 | 12890 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12891 | struct bfd_link_info *info, |
217aa764 AM |
12892 | asection *sec, |
12893 | bfd_vma offset) | |
c629eae0 | 12894 | { |
68bfbfcc | 12895 | switch (sec->sec_info_type) |
65765700 | 12896 | { |
dbaa2011 | 12897 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12898 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12899 | offset); | |
dbaa2011 | 12900 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12901 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12902 | |
65765700 | 12903 | default: |
310fd250 L |
12904 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12905 | { | |
37b01f6a | 12906 | /* Reverse the offset. */ |
310fd250 L |
12907 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12908 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12909 | |
12910 | /* address_size and sec->size are in octets. Convert | |
12911 | to bytes before subtracting the original offset. */ | |
61826503 | 12912 | offset = ((sec->size - address_size) |
bb294208 | 12913 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12914 | } |
65765700 JJ |
12915 | return offset; |
12916 | } | |
c629eae0 | 12917 | } |
3333a7c3 RM |
12918 | \f |
12919 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12920 | reconstruct an ELF file by reading the segments out of remote memory | |
12921 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12922 | points to. If not null, *LOADBASEP is filled in with the difference | |
12923 | between the VMAs from which the segments were read, and the VMAs the | |
12924 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12925 | ||
12926 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12927 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12928 | should return zero on success or an `errno' code on failure. TEMPL must | |
12929 | be a BFD for an ELF target with the word size and byte order found in | |
12930 | the remote memory. */ | |
12931 | ||
12932 | bfd * | |
217aa764 AM |
12933 | bfd_elf_bfd_from_remote_memory |
12934 | (bfd *templ, | |
12935 | bfd_vma ehdr_vma, | |
f0a5d95a | 12936 | bfd_size_type size, |
217aa764 | 12937 | bfd_vma *loadbasep, |
fe78531d | 12938 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12939 | { |
12940 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12941 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12942 | } |
4c45e5c9 JJ |
12943 | \f |
12944 | long | |
c9727e01 AM |
12945 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12946 | long symcount ATTRIBUTE_UNUSED, | |
12947 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12948 | long dynsymcount, |
c9727e01 AM |
12949 | asymbol **dynsyms, |
12950 | asymbol **ret) | |
4c45e5c9 JJ |
12951 | { |
12952 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12953 | asection *relplt; | |
12954 | asymbol *s; | |
12955 | const char *relplt_name; | |
0a1b45a2 | 12956 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
4c45e5c9 JJ |
12957 | arelent *p; |
12958 | long count, i, n; | |
12959 | size_t size; | |
12960 | Elf_Internal_Shdr *hdr; | |
12961 | char *names; | |
12962 | asection *plt; | |
12963 | ||
8615f3f2 AM |
12964 | *ret = NULL; |
12965 | ||
90e3cdf2 JJ |
12966 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12967 | return 0; | |
12968 | ||
8615f3f2 AM |
12969 | if (dynsymcount <= 0) |
12970 | return 0; | |
12971 | ||
4c45e5c9 JJ |
12972 | if (!bed->plt_sym_val) |
12973 | return 0; | |
12974 | ||
12975 | relplt_name = bed->relplt_name; | |
12976 | if (relplt_name == NULL) | |
d35fd659 | 12977 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12978 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12979 | if (relplt == NULL) | |
12980 | return 0; | |
12981 | ||
12982 | hdr = &elf_section_data (relplt)->this_hdr; | |
12983 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12984 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12985 | return 0; | |
12986 | ||
12987 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12988 | if (plt == NULL) | |
12989 | return 0; | |
12990 | ||
12991 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
0a1b45a2 | 12992 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, true)) |
4c45e5c9 JJ |
12993 | return -1; |
12994 | ||
eea6121a | 12995 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12996 | size = count * sizeof (asymbol); |
12997 | p = relplt->relocation; | |
cb53bf42 | 12998 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12999 | { |
13000 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
13001 | if (p->addend != 0) | |
13002 | { | |
13003 | #ifdef BFD64 | |
13004 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
13005 | #else | |
13006 | size += sizeof ("+0x") - 1 + 8; | |
13007 | #endif | |
13008 | } | |
13009 | } | |
4c45e5c9 | 13010 | |
a50b1753 | 13011 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
13012 | if (s == NULL) |
13013 | return -1; | |
13014 | ||
13015 | names = (char *) (s + count); | |
13016 | p = relplt->relocation; | |
13017 | n = 0; | |
cb53bf42 | 13018 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
13019 | { |
13020 | size_t len; | |
13021 | bfd_vma addr; | |
13022 | ||
13023 | addr = bed->plt_sym_val (i, plt, p); | |
13024 | if (addr == (bfd_vma) -1) | |
13025 | continue; | |
13026 | ||
13027 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
13028 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
13029 | we are defining a symbol, ensure one of them is set. */ | |
13030 | if ((s->flags & BSF_LOCAL) == 0) | |
13031 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 13032 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
13033 | s->section = plt; |
13034 | s->value = addr - plt->vma; | |
13035 | s->name = names; | |
8f39ba8e | 13036 | s->udata.p = NULL; |
4c45e5c9 JJ |
13037 | len = strlen ((*p->sym_ptr_ptr)->name); |
13038 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
13039 | names += len; | |
041de40d AM |
13040 | if (p->addend != 0) |
13041 | { | |
1d770845 | 13042 | char buf[30], *a; |
d324f6d6 | 13043 | |
041de40d AM |
13044 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
13045 | names += sizeof ("+0x") - 1; | |
1d770845 L |
13046 | bfd_sprintf_vma (abfd, buf, p->addend); |
13047 | for (a = buf; *a == '0'; ++a) | |
13048 | ; | |
13049 | len = strlen (a); | |
13050 | memcpy (names, a, len); | |
13051 | names += len; | |
041de40d | 13052 | } |
4c45e5c9 JJ |
13053 | memcpy (names, "@plt", sizeof ("@plt")); |
13054 | names += sizeof ("@plt"); | |
8f39ba8e | 13055 | ++s, ++n; |
4c45e5c9 JJ |
13056 | } |
13057 | ||
13058 | return n; | |
13059 | } | |
3d7f7666 | 13060 | |
821e6ff6 AM |
13061 | /* It is only used by x86-64 so far. |
13062 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
13063 | but current usage would allow all of _bfd_std_section to be zero. */ |
13064 | static const asymbol lcomm_sym | |
13065 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 13066 | asection _bfd_elf_large_com_section |
7eacd66b | 13067 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 13068 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 13069 | |
0a1b45a2 | 13070 | bool |
cc364be6 | 13071 | _bfd_elf_final_write_processing (bfd *abfd) |
06f44071 AM |
13072 | { |
13073 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
13074 | |
13075 | i_ehdrp = elf_elfheader (abfd); | |
13076 | ||
06f44071 AM |
13077 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
13078 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 13079 | |
df3a023b | 13080 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
99fabbc9 JL |
13081 | SHF_GNU_MBIND or SHF_GNU_RETAIN sections or symbols of STT_GNU_IFUNC type |
13082 | or STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
13083 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
13084 | { | |
13085 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
13086 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
13087 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
13088 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
13089 | { | |
13090 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
99fabbc9 JL |
13091 | _bfd_error_handler (_("GNU_MBIND section is supported only by GNU " |
13092 | "and FreeBSD targets")); | |
cc364be6 | 13093 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) |
99fabbc9 JL |
13094 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is supported " |
13095 | "only by GNU and FreeBSD targets")); | |
cc364be6 | 13096 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) |
99fabbc9 JL |
13097 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is supported " |
13098 | "only by GNU and FreeBSD targets")); | |
13099 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_retain) | |
13100 | _bfd_error_handler (_("GNU_RETAIN section is supported " | |
13101 | "only by GNU and FreeBSD targets")); | |
9aea1e31 | 13102 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 13103 | return false; |
cc364be6 AM |
13104 | } |
13105 | } | |
0a1b45a2 | 13106 | return true; |
d1036acb | 13107 | } |
fcb93ecf PB |
13108 | |
13109 | ||
13110 | /* Return TRUE for ELF symbol types that represent functions. | |
13111 | This is the default version of this function, which is sufficient for | |
d8045f23 | 13112 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf | 13113 | |
0a1b45a2 | 13114 | bool |
fcb93ecf PB |
13115 | _bfd_elf_is_function_type (unsigned int type) |
13116 | { | |
d8045f23 NC |
13117 | return (type == STT_FUNC |
13118 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 13119 | } |
9f296da3 | 13120 | |
aef36ac1 AM |
13121 | /* If the ELF symbol SYM might be a function in SEC, return the |
13122 | function size and set *CODE_OFF to the function's entry point, | |
13123 | otherwise return zero. */ | |
9f296da3 | 13124 | |
aef36ac1 AM |
13125 | bfd_size_type |
13126 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
13127 | bfd_vma *code_off) | |
9f296da3 | 13128 | { |
aef36ac1 | 13129 | bfd_size_type size; |
24aebc79 | 13130 | elf_symbol_type * elf_sym = (elf_symbol_type *) sym; |
aef36ac1 | 13131 | |
ff9e0f5b | 13132 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
13133 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
13134 | || sym->section != sec) | |
13135 | return 0; | |
ff9e0f5b | 13136 | |
24aebc79 | 13137 | size = (sym->flags & BSF_SYNTHETIC) ? 0 : elf_sym->internal_elf_sym.st_size; |
11c6a7c6 | 13138 | |
24aebc79 NC |
13139 | /* In theory we should check that the symbol's type satisfies |
13140 | _bfd_elf_is_function_type(), but there are some function-like | |
13141 | symbols which would fail this test. (eg _start). Instead | |
13142 | we check for hidden, local, notype symbols with zero size. | |
13143 | This type of symbol is generated by the annobin plugin for gcc | |
13144 | and clang, and should not be considered to be a function symbol. */ | |
13145 | if (size == 0 | |
13146 | && ((sym->flags & (BSF_SYNTHETIC | BSF_LOCAL)) == BSF_LOCAL) | |
13147 | && ELF_ST_TYPE (elf_sym->internal_elf_sym.st_info) == STT_NOTYPE | |
13148 | && ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other) == STV_HIDDEN) | |
13149 | return 0; | |
11c6a7c6 | 13150 | |
ff9e0f5b | 13151 | *code_off = sym->value; |
24aebc79 NC |
13152 | /* Do not return 0 for the function's size. */ |
13153 | return size ? size : 1; | |
9f296da3 | 13154 | } |
a8e14f4c NC |
13155 | |
13156 | /* Set to non-zero to enable some debug messages. */ | |
13157 | #define DEBUG_SECONDARY_RELOCS 0 | |
13158 | ||
13159 | /* An internal-to-the-bfd-library only section type | |
13160 | used to indicate a cached secondary reloc section. */ | |
13161 | #define SHT_SECONDARY_RELOC (SHT_LOOS + SHT_RELA) | |
13162 | ||
13163 | /* Create a BFD section to hold a secondary reloc section. */ | |
13164 | ||
0a1b45a2 | 13165 | bool |
a8e14f4c NC |
13166 | _bfd_elf_init_secondary_reloc_section (bfd * abfd, |
13167 | Elf_Internal_Shdr *hdr, | |
13168 | const char * name, | |
13169 | unsigned int shindex) | |
13170 | { | |
13171 | /* We only support RELA secondary relocs. */ | |
13172 | if (hdr->sh_type != SHT_RELA) | |
0a1b45a2 | 13173 | return false; |
a8e14f4c NC |
13174 | |
13175 | #if DEBUG_SECONDARY_RELOCS | |
13176 | fprintf (stderr, "secondary reloc section %s encountered\n", name); | |
13177 | #endif | |
13178 | hdr->sh_type = SHT_SECONDARY_RELOC; | |
13179 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
13180 | } | |
13181 | ||
13182 | /* Read in any secondary relocs associated with SEC. */ | |
13183 | ||
0a1b45a2 | 13184 | bool |
f60742b2 NC |
13185 | _bfd_elf_slurp_secondary_reloc_section (bfd * abfd, |
13186 | asection * sec, | |
13187 | asymbol ** symbols, | |
0a1b45a2 | 13188 | bool dynamic) |
a8e14f4c NC |
13189 | { |
13190 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
13191 | asection * relsec; | |
0a1b45a2 | 13192 | bool result = true; |
a8e14f4c NC |
13193 | bfd_vma (*r_sym) (bfd_vma); |
13194 | ||
13195 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
13196 | if (bfd_arch_bits_per_address (abfd) != 32) | |
13197 | r_sym = elf64_r_sym; | |
13198 | else | |
13199 | #endif | |
13200 | r_sym = elf32_r_sym; | |
11c6a7c6 | 13201 | |
956ea65c MM |
13202 | if (!elf_section_data (sec)->has_secondary_relocs) |
13203 | return true; | |
13204 | ||
a8e14f4c NC |
13205 | /* Discover if there are any secondary reloc sections |
13206 | associated with SEC. */ | |
13207 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
13208 | { | |
13209 | Elf_Internal_Shdr * hdr = & elf_section_data (relsec)->this_hdr; | |
13210 | ||
13211 | if (hdr->sh_type == SHT_SECONDARY_RELOC | |
8642dafa AM |
13212 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx |
13213 | && (hdr->sh_entsize == ebd->s->sizeof_rel | |
13214 | || hdr->sh_entsize == ebd->s->sizeof_rela)) | |
a8e14f4c NC |
13215 | { |
13216 | bfd_byte * native_relocs; | |
13217 | bfd_byte * native_reloc; | |
13218 | arelent * internal_relocs; | |
13219 | arelent * internal_reloc; | |
13220 | unsigned int i; | |
13221 | unsigned int entsize; | |
13222 | unsigned int symcount; | |
13223 | unsigned int reloc_count; | |
13224 | size_t amt; | |
13225 | ||
13226 | if (ebd->elf_info_to_howto == NULL) | |
0a1b45a2 | 13227 | return false; |
a8e14f4c NC |
13228 | |
13229 | #if DEBUG_SECONDARY_RELOCS | |
13230 | fprintf (stderr, "read secondary relocs for %s from %s\n", | |
13231 | sec->name, relsec->name); | |
13232 | #endif | |
13233 | entsize = hdr->sh_entsize; | |
13234 | ||
13235 | native_relocs = bfd_malloc (hdr->sh_size); | |
13236 | if (native_relocs == NULL) | |
13237 | { | |
0a1b45a2 | 13238 | result = false; |
a8e14f4c NC |
13239 | continue; |
13240 | } | |
13241 | ||
13242 | reloc_count = NUM_SHDR_ENTRIES (hdr); | |
13243 | if (_bfd_mul_overflow (reloc_count, sizeof (arelent), & amt)) | |
13244 | { | |
ecbbbdba | 13245 | free (native_relocs); |
a8e14f4c | 13246 | bfd_set_error (bfd_error_file_too_big); |
0a1b45a2 | 13247 | result = false; |
a8e14f4c NC |
13248 | continue; |
13249 | } | |
13250 | ||
13251 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
13252 | if (internal_relocs == NULL) | |
13253 | { | |
13254 | free (native_relocs); | |
0a1b45a2 | 13255 | result = false; |
a8e14f4c NC |
13256 | continue; |
13257 | } | |
13258 | ||
13259 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
13260 | || (bfd_bread (native_relocs, hdr->sh_size, abfd) | |
13261 | != hdr->sh_size)) | |
13262 | { | |
13263 | free (native_relocs); | |
ecbbbdba NC |
13264 | /* The internal_relocs will be freed when |
13265 | the memory for the bfd is released. */ | |
0a1b45a2 | 13266 | result = false; |
a8e14f4c NC |
13267 | continue; |
13268 | } | |
13269 | ||
f60742b2 NC |
13270 | if (dynamic) |
13271 | symcount = bfd_get_dynamic_symcount (abfd); | |
13272 | else | |
13273 | symcount = bfd_get_symcount (abfd); | |
a8e14f4c NC |
13274 | |
13275 | for (i = 0, internal_reloc = internal_relocs, | |
13276 | native_reloc = native_relocs; | |
13277 | i < reloc_count; | |
13278 | i++, internal_reloc++, native_reloc += entsize) | |
13279 | { | |
0a1b45a2 | 13280 | bool res; |
a8e14f4c NC |
13281 | Elf_Internal_Rela rela; |
13282 | ||
8ee54925 NC |
13283 | if (entsize == ebd->s->sizeof_rel) |
13284 | ebd->s->swap_reloc_in (abfd, native_reloc, & rela); | |
13285 | else /* entsize == ebd->s->sizeof_rela */ | |
13286 | ebd->s->swap_reloca_in (abfd, native_reloc, & rela); | |
a8e14f4c NC |
13287 | |
13288 | /* The address of an ELF reloc is section relative for an object | |
13289 | file, and absolute for an executable file or shared library. | |
13290 | The address of a normal BFD reloc is always section relative, | |
13291 | and the address of a dynamic reloc is absolute.. */ | |
13292 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
13293 | internal_reloc->address = rela.r_offset; | |
13294 | else | |
13295 | internal_reloc->address = rela.r_offset - sec->vma; | |
13296 | ||
13297 | if (r_sym (rela.r_info) == STN_UNDEF) | |
13298 | { | |
13299 | /* FIXME: This and the error case below mean that we | |
13300 | have a symbol on relocs that is not elf_symbol_type. */ | |
13301 | internal_reloc->sym_ptr_ptr = | |
13302 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
13303 | } | |
13304 | else if (r_sym (rela.r_info) > symcount) | |
13305 | { | |
13306 | _bfd_error_handler | |
13307 | /* xgettext:c-format */ | |
13308 | (_("%pB(%pA): relocation %d has invalid symbol index %ld"), | |
13309 | abfd, sec, i, (long) r_sym (rela.r_info)); | |
13310 | bfd_set_error (bfd_error_bad_value); | |
13311 | internal_reloc->sym_ptr_ptr = | |
13312 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
0a1b45a2 | 13313 | result = false; |
a8e14f4c NC |
13314 | } |
13315 | else | |
13316 | { | |
13317 | asymbol **ps; | |
13318 | ||
13319 | ps = symbols + r_sym (rela.r_info) - 1; | |
a8e14f4c NC |
13320 | internal_reloc->sym_ptr_ptr = ps; |
13321 | /* Make sure that this symbol is not removed by strip. */ | |
13322 | (*ps)->flags |= BSF_KEEP; | |
13323 | } | |
13324 | ||
13325 | internal_reloc->addend = rela.r_addend; | |
13326 | ||
13327 | res = ebd->elf_info_to_howto (abfd, internal_reloc, & rela); | |
13328 | if (! res || internal_reloc->howto == NULL) | |
13329 | { | |
13330 | #if DEBUG_SECONDARY_RELOCS | |
11c6a7c6 AM |
13331 | fprintf (stderr, |
13332 | "there is no howto associated with reloc %lx\n", | |
a8e14f4c NC |
13333 | rela.r_info); |
13334 | #endif | |
0a1b45a2 | 13335 | result = false; |
a8e14f4c NC |
13336 | } |
13337 | } | |
13338 | ||
13339 | free (native_relocs); | |
13340 | /* Store the internal relocs. */ | |
13341 | elf_section_data (relsec)->sec_info = internal_relocs; | |
13342 | } | |
13343 | } | |
13344 | ||
13345 | return result; | |
13346 | } | |
13347 | ||
13348 | /* Set the ELF section header fields of an output secondary reloc section. */ | |
13349 | ||
0a1b45a2 | 13350 | bool |
11c6a7c6 AM |
13351 | _bfd_elf_copy_special_section_fields (const bfd *ibfd ATTRIBUTE_UNUSED, |
13352 | bfd *obfd ATTRIBUTE_UNUSED, | |
13353 | const Elf_Internal_Shdr *isection, | |
13354 | Elf_Internal_Shdr *osection) | |
a8e14f4c NC |
13355 | { |
13356 | asection * isec; | |
13357 | asection * osec; | |
44466e45 | 13358 | struct bfd_elf_section_data * esd; |
a8e14f4c NC |
13359 | |
13360 | if (isection == NULL) | |
0a1b45a2 | 13361 | return false; |
a8e14f4c NC |
13362 | |
13363 | if (isection->sh_type != SHT_SECONDARY_RELOC) | |
0a1b45a2 | 13364 | return true; |
a8e14f4c NC |
13365 | |
13366 | isec = isection->bfd_section; | |
13367 | if (isec == NULL) | |
0a1b45a2 | 13368 | return false; |
a8e14f4c NC |
13369 | |
13370 | osec = osection->bfd_section; | |
13371 | if (osec == NULL) | |
0a1b45a2 | 13372 | return false; |
a8e14f4c | 13373 | |
44466e45 NC |
13374 | esd = elf_section_data (osec); |
13375 | BFD_ASSERT (esd->sec_info == NULL); | |
13376 | esd->sec_info = elf_section_data (isec)->sec_info; | |
a8e14f4c NC |
13377 | osection->sh_type = SHT_RELA; |
13378 | osection->sh_link = elf_onesymtab (obfd); | |
13379 | if (osection->sh_link == 0) | |
13380 | { | |
13381 | /* There is no symbol table - we are hosed... */ | |
13382 | _bfd_error_handler | |
13383 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13384 | (_("%pB(%pA): link section cannot be set" |
13385 | " because the output file does not have a symbol table"), | |
a8e14f4c NC |
13386 | obfd, osec); |
13387 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13388 | return false; |
a8e14f4c NC |
13389 | } |
13390 | ||
11c6a7c6 AM |
13391 | /* Find the output section that corresponds to the isection's |
13392 | sh_info link. */ | |
327ef784 NC |
13393 | if (isection->sh_info == 0 |
13394 | || isection->sh_info >= elf_numsections (ibfd)) | |
13395 | { | |
13396 | _bfd_error_handler | |
13397 | /* xgettext:c-format */ | |
13398 | (_("%pB(%pA): info section index is invalid"), | |
13399 | obfd, osec); | |
13400 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13401 | return false; |
327ef784 NC |
13402 | } |
13403 | ||
a8e14f4c NC |
13404 | isection = elf_elfsections (ibfd)[isection->sh_info]; |
13405 | ||
327ef784 NC |
13406 | if (isection == NULL |
13407 | || isection->bfd_section == NULL | |
13408 | || isection->bfd_section->output_section == NULL) | |
13409 | { | |
13410 | _bfd_error_handler | |
13411 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13412 | (_("%pB(%pA): info section index cannot be set" |
13413 | " because the section is not in the output"), | |
327ef784 NC |
13414 | obfd, osec); |
13415 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13416 | return false; |
327ef784 NC |
13417 | } |
13418 | ||
44466e45 NC |
13419 | esd = elf_section_data (isection->bfd_section->output_section); |
13420 | BFD_ASSERT (esd != NULL); | |
13421 | osection->sh_info = esd->this_idx; | |
0a1b45a2 | 13422 | esd->has_secondary_relocs = true; |
a8e14f4c NC |
13423 | #if DEBUG_SECONDARY_RELOCS |
13424 | fprintf (stderr, "update header of %s, sh_link = %u, sh_info = %u\n", | |
13425 | osec->name, osection->sh_link, osection->sh_info); | |
44466e45 NC |
13426 | fprintf (stderr, "mark section %s as having secondary relocs\n", |
13427 | bfd_section_name (isection->bfd_section->output_section)); | |
a8e14f4c NC |
13428 | #endif |
13429 | ||
0a1b45a2 | 13430 | return true; |
a8e14f4c NC |
13431 | } |
13432 | ||
44466e45 NC |
13433 | /* Write out a secondary reloc section. |
13434 | ||
13435 | FIXME: Currently this function can result in a serious performance penalty | |
13436 | for files with secondary relocs and lots of sections. The proper way to | |
13437 | fix this is for _bfd_elf_copy_special_section_fields() to chain secondary | |
13438 | relocs together and then to have this function just walk that chain. */ | |
a8e14f4c | 13439 | |
0a1b45a2 | 13440 | bool |
a8e14f4c NC |
13441 | _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec) |
13442 | { | |
13443 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
13444 | bfd_vma addr_offset; | |
13445 | asection * relsec; | |
13446 | bfd_vma (*r_info) (bfd_vma, bfd_vma); | |
0a1b45a2 | 13447 | bool result = true; |
ac4bf06c NC |
13448 | |
13449 | if (sec == NULL) | |
0a1b45a2 | 13450 | return false; |
a8e14f4c NC |
13451 | |
13452 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
13453 | if (bfd_arch_bits_per_address (abfd) != 32) | |
13454 | r_info = elf64_r_info; | |
13455 | else | |
13456 | #endif | |
13457 | r_info = elf32_r_info; | |
13458 | ||
a8e14f4c NC |
13459 | /* The address of an ELF reloc is section relative for an object |
13460 | file, and absolute for an executable file or shared library. | |
13461 | The address of a BFD reloc is always section relative. */ | |
13462 | addr_offset = 0; | |
13463 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
13464 | addr_offset = sec->vma; | |
13465 | ||
13466 | /* Discover if there are any secondary reloc sections | |
13467 | associated with SEC. */ | |
13468 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
13469 | { | |
13470 | const struct bfd_elf_section_data * const esd = elf_section_data (relsec); | |
13471 | Elf_Internal_Shdr * const hdr = (Elf_Internal_Shdr *) & esd->this_hdr; | |
13472 | ||
13473 | if (hdr->sh_type == SHT_RELA | |
13474 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
13475 | { | |
13476 | asymbol * last_sym; | |
13477 | int last_sym_idx; | |
13478 | unsigned int reloc_count; | |
13479 | unsigned int idx; | |
8ee54925 | 13480 | unsigned int entsize; |
a8e14f4c NC |
13481 | arelent * src_irel; |
13482 | bfd_byte * dst_rela; | |
13483 | ||
ac4bf06c NC |
13484 | if (hdr->contents != NULL) |
13485 | { | |
13486 | _bfd_error_handler | |
13487 | /* xgettext:c-format */ | |
13488 | (_("%pB(%pA): error: secondary reloc section processed twice"), | |
13489 | abfd, relsec); | |
13490 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13491 | result = false; |
ac4bf06c NC |
13492 | continue; |
13493 | } | |
a8e14f4c | 13494 | |
8ee54925 NC |
13495 | entsize = hdr->sh_entsize; |
13496 | if (entsize == 0) | |
ac267c75 NC |
13497 | { |
13498 | _bfd_error_handler | |
13499 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13500 | (_("%pB(%pA): error: secondary reloc section" |
13501 | " has zero sized entries"), | |
ac267c75 NC |
13502 | abfd, relsec); |
13503 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13504 | result = false; |
ac267c75 NC |
13505 | continue; |
13506 | } | |
8ee54925 NC |
13507 | else if (entsize != ebd->s->sizeof_rel |
13508 | && entsize != ebd->s->sizeof_rela) | |
13509 | { | |
13510 | _bfd_error_handler | |
13511 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13512 | (_("%pB(%pA): error: secondary reloc section" |
13513 | " has non-standard sized entries"), | |
8ee54925 NC |
13514 | abfd, relsec); |
13515 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13516 | result = false; |
8ee54925 NC |
13517 | continue; |
13518 | } | |
ac267c75 | 13519 | |
8ee54925 | 13520 | reloc_count = hdr->sh_size / entsize; |
ac4bf06c NC |
13521 | if (reloc_count <= 0) |
13522 | { | |
13523 | _bfd_error_handler | |
13524 | /* xgettext:c-format */ | |
13525 | (_("%pB(%pA): error: secondary reloc section is empty!"), | |
13526 | abfd, relsec); | |
13527 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13528 | result = false; |
ac4bf06c NC |
13529 | continue; |
13530 | } | |
a8e14f4c NC |
13531 | |
13532 | hdr->contents = bfd_alloc (abfd, hdr->sh_size); | |
13533 | if (hdr->contents == NULL) | |
13534 | continue; | |
13535 | ||
13536 | #if DEBUG_SECONDARY_RELOCS | |
13537 | fprintf (stderr, "write %u secondary relocs for %s from %s\n", | |
13538 | reloc_count, sec->name, relsec->name); | |
13539 | #endif | |
13540 | last_sym = NULL; | |
13541 | last_sym_idx = 0; | |
13542 | dst_rela = hdr->contents; | |
13543 | src_irel = (arelent *) esd->sec_info; | |
ac4bf06c NC |
13544 | if (src_irel == NULL) |
13545 | { | |
13546 | _bfd_error_handler | |
13547 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13548 | (_("%pB(%pA): error: internal relocs missing" |
13549 | " for secondary reloc section"), | |
ac4bf06c NC |
13550 | abfd, relsec); |
13551 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13552 | result = false; |
ac4bf06c NC |
13553 | continue; |
13554 | } | |
a8e14f4c | 13555 | |
8ee54925 | 13556 | for (idx = 0; idx < reloc_count; idx++, dst_rela += entsize) |
a8e14f4c NC |
13557 | { |
13558 | Elf_Internal_Rela src_rela; | |
13559 | arelent *ptr; | |
13560 | asymbol *sym; | |
13561 | int n; | |
13562 | ||
13563 | ptr = src_irel + idx; | |
ac4bf06c NC |
13564 | if (ptr == NULL) |
13565 | { | |
13566 | _bfd_error_handler | |
13567 | /* xgettext:c-format */ | |
13568 | (_("%pB(%pA): error: reloc table entry %u is empty"), | |
13569 | abfd, relsec, idx); | |
13570 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13571 | result = false; |
ac4bf06c NC |
13572 | break; |
13573 | } | |
a8e14f4c | 13574 | |
ac4bf06c NC |
13575 | if (ptr->sym_ptr_ptr == NULL) |
13576 | { | |
13577 | /* FIXME: Is this an error ? */ | |
13578 | n = 0; | |
13579 | } | |
a8e14f4c NC |
13580 | else |
13581 | { | |
ac4bf06c NC |
13582 | sym = *ptr->sym_ptr_ptr; |
13583 | ||
13584 | if (sym == last_sym) | |
13585 | n = last_sym_idx; | |
13586 | else | |
a8e14f4c | 13587 | { |
ac4bf06c NC |
13588 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, & sym); |
13589 | if (n < 0) | |
13590 | { | |
13591 | _bfd_error_handler | |
13592 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13593 | (_("%pB(%pA): error: secondary reloc %u" |
13594 | " references a missing symbol"), | |
ac4bf06c NC |
13595 | abfd, relsec, idx); |
13596 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13597 | result = false; |
ac4bf06c NC |
13598 | n = 0; |
13599 | } | |
13600 | ||
13601 | last_sym = sym; | |
13602 | last_sym_idx = n; | |
a8e14f4c | 13603 | } |
a8e14f4c | 13604 | |
ac4bf06c NC |
13605 | if (sym->the_bfd != NULL |
13606 | && sym->the_bfd->xvec != abfd->xvec | |
13607 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
13608 | { | |
13609 | _bfd_error_handler | |
13610 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13611 | (_("%pB(%pA): error: secondary reloc %u" |
13612 | " references a deleted symbol"), | |
ac4bf06c NC |
13613 | abfd, relsec, idx); |
13614 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13615 | result = false; |
ac4bf06c NC |
13616 | n = 0; |
13617 | } | |
a8e14f4c NC |
13618 | } |
13619 | ||
ac4bf06c | 13620 | src_rela.r_offset = ptr->address + addr_offset; |
a8e14f4c NC |
13621 | if (ptr->howto == NULL) |
13622 | { | |
ac4bf06c NC |
13623 | _bfd_error_handler |
13624 | /* xgettext:c-format */ | |
11c6a7c6 AM |
13625 | (_("%pB(%pA): error: secondary reloc %u" |
13626 | " is of an unknown type"), | |
ac4bf06c NC |
13627 | abfd, relsec, idx); |
13628 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13629 | result = false; |
ac4bf06c | 13630 | src_rela.r_info = r_info (0, 0); |
a8e14f4c | 13631 | } |
ac4bf06c NC |
13632 | else |
13633 | src_rela.r_info = r_info (n, ptr->howto->type); | |
a8e14f4c | 13634 | src_rela.r_addend = ptr->addend; |
8ee54925 NC |
13635 | |
13636 | if (entsize == ebd->s->sizeof_rel) | |
13637 | ebd->s->swap_reloc_out (abfd, &src_rela, dst_rela); | |
13638 | else /* entsize == ebd->s->sizeof_rela */ | |
13639 | ebd->s->swap_reloca_out (abfd, &src_rela, dst_rela); | |
a8e14f4c NC |
13640 | } |
13641 | } | |
13642 | } | |
13643 | ||
ac4bf06c | 13644 | return result; |
a8e14f4c | 13645 | } |