Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
2571583a | 3 | Copyright (C) 1993-2017 Free Software Foundation, Inc. |
252b5132 | 4 | |
5e8d7549 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
5e8d7549 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 10 | (at your option) any later version. |
252b5132 | 11 | |
5e8d7549 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
5e8d7549 | 17 | You should have received a copy of the GNU General Public License |
b34976b6 | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
1b74d094 BW |
23 | /* |
24 | SECTION | |
252b5132 RH |
25 | ELF backends |
26 | ||
27 | BFD support for ELF formats is being worked on. | |
28 | Currently, the best supported back ends are for sparc and i386 | |
29 | (running svr4 or Solaris 2). | |
30 | ||
31 | Documentation of the internals of the support code still needs | |
32 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 33 | haven't bothered yet. */ |
252b5132 | 34 | |
7ee38065 MS |
35 | /* For sparc64-cross-sparc32. */ |
36 | #define _SYSCALL32 | |
252b5132 | 37 | #include "sysdep.h" |
3db64b00 | 38 | #include "bfd.h" |
252b5132 RH |
39 | #include "bfdlink.h" |
40 | #include "libbfd.h" | |
41 | #define ARCH_SIZE 0 | |
42 | #include "elf-bfd.h" | |
e0e8c97f | 43 | #include "libiberty.h" |
ff59fc36 | 44 | #include "safe-ctype.h" |
de64ce13 | 45 | #include "elf-linux-core.h" |
252b5132 | 46 | |
8bc7f138 L |
47 | #ifdef CORE_HEADER |
48 | #include CORE_HEADER | |
49 | #endif | |
50 | ||
217aa764 | 51 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 52 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 | 53 | static bfd_boolean prep_headers (bfd *); |
ef10c3ac | 54 | static bfd_boolean swap_out_syms (bfd *, struct elf_strtab_hash **, int) ; |
276da9b3 L |
55 | static bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type, |
56 | size_t align) ; | |
718175fa | 57 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, |
276da9b3 | 58 | file_ptr offset, size_t align); |
50b2bdb7 | 59 | |
252b5132 RH |
60 | /* Swap version information in and out. The version information is |
61 | currently size independent. If that ever changes, this code will | |
62 | need to move into elfcode.h. */ | |
63 | ||
64 | /* Swap in a Verdef structure. */ | |
65 | ||
66 | void | |
217aa764 AM |
67 | _bfd_elf_swap_verdef_in (bfd *abfd, |
68 | const Elf_External_Verdef *src, | |
69 | Elf_Internal_Verdef *dst) | |
252b5132 | 70 | { |
dc810e39 AM |
71 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
72 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
73 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
74 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
75 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
76 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
77 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
78 | } |
79 | ||
80 | /* Swap out a Verdef structure. */ | |
81 | ||
82 | void | |
217aa764 AM |
83 | _bfd_elf_swap_verdef_out (bfd *abfd, |
84 | const Elf_Internal_Verdef *src, | |
85 | Elf_External_Verdef *dst) | |
252b5132 | 86 | { |
dc810e39 AM |
87 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
88 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
89 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
90 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
91 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
92 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
93 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
94 | } |
95 | ||
96 | /* Swap in a Verdaux structure. */ | |
97 | ||
98 | void | |
217aa764 AM |
99 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
100 | const Elf_External_Verdaux *src, | |
101 | Elf_Internal_Verdaux *dst) | |
252b5132 | 102 | { |
dc810e39 AM |
103 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
104 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
105 | } |
106 | ||
107 | /* Swap out a Verdaux structure. */ | |
108 | ||
109 | void | |
217aa764 AM |
110 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
111 | const Elf_Internal_Verdaux *src, | |
112 | Elf_External_Verdaux *dst) | |
252b5132 | 113 | { |
dc810e39 AM |
114 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
115 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
116 | } |
117 | ||
118 | /* Swap in a Verneed structure. */ | |
119 | ||
120 | void | |
217aa764 AM |
121 | _bfd_elf_swap_verneed_in (bfd *abfd, |
122 | const Elf_External_Verneed *src, | |
123 | Elf_Internal_Verneed *dst) | |
252b5132 | 124 | { |
dc810e39 AM |
125 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
126 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
127 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
128 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
129 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
130 | } |
131 | ||
132 | /* Swap out a Verneed structure. */ | |
133 | ||
134 | void | |
217aa764 AM |
135 | _bfd_elf_swap_verneed_out (bfd *abfd, |
136 | const Elf_Internal_Verneed *src, | |
137 | Elf_External_Verneed *dst) | |
252b5132 | 138 | { |
dc810e39 AM |
139 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
140 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
141 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
142 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
143 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
144 | } |
145 | ||
146 | /* Swap in a Vernaux structure. */ | |
147 | ||
148 | void | |
217aa764 AM |
149 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
150 | const Elf_External_Vernaux *src, | |
151 | Elf_Internal_Vernaux *dst) | |
252b5132 | 152 | { |
dc810e39 AM |
153 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
154 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
155 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
156 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
157 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
158 | } |
159 | ||
160 | /* Swap out a Vernaux structure. */ | |
161 | ||
162 | void | |
217aa764 AM |
163 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
164 | const Elf_Internal_Vernaux *src, | |
165 | Elf_External_Vernaux *dst) | |
252b5132 | 166 | { |
dc810e39 AM |
167 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
168 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
169 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
170 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
171 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
172 | } |
173 | ||
174 | /* Swap in a Versym structure. */ | |
175 | ||
176 | void | |
217aa764 AM |
177 | _bfd_elf_swap_versym_in (bfd *abfd, |
178 | const Elf_External_Versym *src, | |
179 | Elf_Internal_Versym *dst) | |
252b5132 | 180 | { |
dc810e39 | 181 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
182 | } |
183 | ||
184 | /* Swap out a Versym structure. */ | |
185 | ||
186 | void | |
217aa764 AM |
187 | _bfd_elf_swap_versym_out (bfd *abfd, |
188 | const Elf_Internal_Versym *src, | |
189 | Elf_External_Versym *dst) | |
252b5132 | 190 | { |
dc810e39 | 191 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
192 | } |
193 | ||
194 | /* Standard ELF hash function. Do not change this function; you will | |
195 | cause invalid hash tables to be generated. */ | |
3a99b017 | 196 | |
252b5132 | 197 | unsigned long |
217aa764 | 198 | bfd_elf_hash (const char *namearg) |
252b5132 | 199 | { |
3a99b017 | 200 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
201 | unsigned long h = 0; |
202 | unsigned long g; | |
203 | int ch; | |
204 | ||
205 | while ((ch = *name++) != '\0') | |
206 | { | |
207 | h = (h << 4) + ch; | |
208 | if ((g = (h & 0xf0000000)) != 0) | |
209 | { | |
210 | h ^= g >> 24; | |
211 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
212 | this case and on some machines one insn instead of two. */ | |
213 | h ^= g; | |
214 | } | |
215 | } | |
32dfa85d | 216 | return h & 0xffffffff; |
252b5132 RH |
217 | } |
218 | ||
fdc90cb4 JJ |
219 | /* DT_GNU_HASH hash function. Do not change this function; you will |
220 | cause invalid hash tables to be generated. */ | |
221 | ||
222 | unsigned long | |
223 | bfd_elf_gnu_hash (const char *namearg) | |
224 | { | |
225 | const unsigned char *name = (const unsigned char *) namearg; | |
226 | unsigned long h = 5381; | |
227 | unsigned char ch; | |
228 | ||
229 | while ((ch = *name++) != '\0') | |
230 | h = (h << 5) + h + ch; | |
231 | return h & 0xffffffff; | |
232 | } | |
233 | ||
0c8d6e5c AM |
234 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
235 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 236 | bfd_boolean |
0c8d6e5c | 237 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 238 | size_t object_size, |
4dfe6ac6 | 239 | enum elf_target_id object_id) |
252b5132 | 240 | { |
0ffa91dd NC |
241 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
242 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
243 | if (abfd->tdata.any == NULL) | |
244 | return FALSE; | |
252b5132 | 245 | |
0ffa91dd | 246 | elf_object_id (abfd) = object_id; |
c0355132 AM |
247 | if (abfd->direction != read_direction) |
248 | { | |
249 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
250 | if (o == NULL) | |
251 | return FALSE; | |
252 | elf_tdata (abfd)->o = o; | |
253 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
254 | } | |
b34976b6 | 255 | return TRUE; |
252b5132 RH |
256 | } |
257 | ||
0ffa91dd NC |
258 | |
259 | bfd_boolean | |
ae95ffa6 | 260 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 261 | { |
ae95ffa6 | 262 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 263 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 264 | bed->target_id); |
0ffa91dd NC |
265 | } |
266 | ||
b34976b6 | 267 | bfd_boolean |
217aa764 | 268 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 269 | { |
c044fabd | 270 | /* I think this can be done just like an object file. */ |
228e534f AM |
271 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
272 | return FALSE; | |
273 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); | |
274 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
275 | } |
276 | ||
72a80a16 | 277 | static char * |
217aa764 | 278 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
279 | { |
280 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 281 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
282 | file_ptr offset; |
283 | bfd_size_type shstrtabsize; | |
252b5132 RH |
284 | |
285 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
286 | if (i_shdrp == 0 |
287 | || shindex >= elf_numsections (abfd) | |
288 | || i_shdrp[shindex] == 0) | |
f075ee0c | 289 | return NULL; |
252b5132 | 290 | |
f075ee0c | 291 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
292 | if (shstrtab == NULL) |
293 | { | |
c044fabd | 294 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
295 | offset = i_shdrp[shindex]->sh_offset; |
296 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
297 | |
298 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
299 | in case the string table is not terminated. */ | |
3471d59d | 300 | if (shstrtabsize + 1 <= 1 |
06614111 NC |
301 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
302 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) | |
c6c60d09 JJ |
303 | shstrtab = NULL; |
304 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
305 | { | |
306 | if (bfd_get_error () != bfd_error_system_call) | |
307 | bfd_set_error (bfd_error_file_truncated); | |
06614111 | 308 | bfd_release (abfd, shstrtab); |
c6c60d09 | 309 | shstrtab = NULL; |
3471d59d CC |
310 | /* Once we've failed to read it, make sure we don't keep |
311 | trying. Otherwise, we'll keep allocating space for | |
312 | the string table over and over. */ | |
313 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
314 | } |
315 | else | |
316 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 317 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 318 | } |
f075ee0c | 319 | return (char *) shstrtab; |
252b5132 RH |
320 | } |
321 | ||
322 | char * | |
217aa764 AM |
323 | bfd_elf_string_from_elf_section (bfd *abfd, |
324 | unsigned int shindex, | |
325 | unsigned int strindex) | |
252b5132 RH |
326 | { |
327 | Elf_Internal_Shdr *hdr; | |
328 | ||
329 | if (strindex == 0) | |
330 | return ""; | |
331 | ||
74f2e02b AM |
332 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
333 | return NULL; | |
334 | ||
252b5132 RH |
335 | hdr = elf_elfsections (abfd)[shindex]; |
336 | ||
06614111 NC |
337 | if (hdr->contents == NULL) |
338 | { | |
339 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
340 | { | |
341 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 342 | /* xgettext:c-format */ |
63a5468a AM |
343 | _bfd_error_handler (_("%B: attempt to load strings from" |
344 | " a non-string section (number %d)"), | |
06614111 NC |
345 | abfd, shindex); |
346 | return NULL; | |
347 | } | |
b1fa9dd6 | 348 | |
06614111 NC |
349 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
350 | return NULL; | |
351 | } | |
252b5132 RH |
352 | |
353 | if (strindex >= hdr->sh_size) | |
354 | { | |
1b3a8575 | 355 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 356 | _bfd_error_handler |
695344c0 | 357 | /* xgettext:c-format */ |
d42c267e AM |
358 | (_("%B: invalid string offset %u >= %Lu for section `%s'"), |
359 | abfd, strindex, hdr->sh_size, | |
1b3a8575 | 360 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 361 | ? ".shstrtab" |
1b3a8575 | 362 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 363 | return NULL; |
252b5132 RH |
364 | } |
365 | ||
366 | return ((char *) hdr->contents) + strindex; | |
367 | } | |
368 | ||
6cdc0ccc AM |
369 | /* Read and convert symbols to internal format. |
370 | SYMCOUNT specifies the number of symbols to read, starting from | |
371 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
372 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
373 | symbols, and symbol section index extensions, respectively. |
374 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
375 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
376 | |
377 | Elf_Internal_Sym * | |
217aa764 AM |
378 | bfd_elf_get_elf_syms (bfd *ibfd, |
379 | Elf_Internal_Shdr *symtab_hdr, | |
380 | size_t symcount, | |
381 | size_t symoffset, | |
382 | Elf_Internal_Sym *intsym_buf, | |
383 | void *extsym_buf, | |
384 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
385 | { |
386 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 387 | void *alloc_ext; |
df622259 | 388 | const bfd_byte *esym; |
6cdc0ccc AM |
389 | Elf_External_Sym_Shndx *alloc_extshndx; |
390 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 391 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
392 | Elf_Internal_Sym *isym; |
393 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 394 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
395 | size_t extsym_size; |
396 | bfd_size_type amt; | |
397 | file_ptr pos; | |
398 | ||
e44a2c9c AM |
399 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
400 | abort (); | |
401 | ||
6cdc0ccc AM |
402 | if (symcount == 0) |
403 | return intsym_buf; | |
404 | ||
405 | /* Normal syms might have section extension entries. */ | |
406 | shndx_hdr = NULL; | |
6a40cf0c NC |
407 | if (elf_symtab_shndx_list (ibfd) != NULL) |
408 | { | |
409 | elf_section_list * entry; | |
410 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
411 | ||
412 | /* Find an index section that is linked to this symtab section. */ | |
413 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
414 | { |
415 | /* PR 20063. */ | |
416 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
417 | continue; | |
418 | ||
419 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
420 | { | |
421 | shndx_hdr = & entry->hdr; | |
422 | break; | |
423 | }; | |
424 | } | |
6a40cf0c NC |
425 | |
426 | if (shndx_hdr == NULL) | |
427 | { | |
428 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
429 | /* Not really accurate, but this was how the old code used to work. */ | |
430 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
431 | /* Otherwise we do nothing. The assumption is that | |
432 | the index table will not be needed. */ | |
433 | } | |
434 | } | |
6cdc0ccc AM |
435 | |
436 | /* Read the symbols. */ | |
437 | alloc_ext = NULL; | |
438 | alloc_extshndx = NULL; | |
4dd07732 | 439 | alloc_intsym = NULL; |
6cdc0ccc AM |
440 | bed = get_elf_backend_data (ibfd); |
441 | extsym_size = bed->s->sizeof_sym; | |
ef53be89 | 442 | amt = (bfd_size_type) symcount * extsym_size; |
6cdc0ccc AM |
443 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
444 | if (extsym_buf == NULL) | |
445 | { | |
d0fb9a8d | 446 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
447 | extsym_buf = alloc_ext; |
448 | } | |
449 | if (extsym_buf == NULL | |
450 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
451 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
452 | { | |
453 | intsym_buf = NULL; | |
454 | goto out; | |
455 | } | |
456 | ||
457 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
458 | extshndx_buf = NULL; | |
459 | else | |
460 | { | |
ef53be89 | 461 | amt = (bfd_size_type) symcount * sizeof (Elf_External_Sym_Shndx); |
6cdc0ccc AM |
462 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
463 | if (extshndx_buf == NULL) | |
464 | { | |
a50b1753 | 465 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
07d6d2b8 | 466 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); |
6cdc0ccc AM |
467 | extshndx_buf = alloc_extshndx; |
468 | } | |
469 | if (extshndx_buf == NULL | |
470 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
471 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
472 | { | |
473 | intsym_buf = NULL; | |
474 | goto out; | |
475 | } | |
476 | } | |
477 | ||
478 | if (intsym_buf == NULL) | |
479 | { | |
a50b1753 | 480 | alloc_intsym = (Elf_Internal_Sym *) |
07d6d2b8 | 481 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); |
4dd07732 | 482 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
483 | if (intsym_buf == NULL) |
484 | goto out; | |
485 | } | |
486 | ||
487 | /* Convert the symbols to internal form. */ | |
488 | isymend = intsym_buf + symcount; | |
a50b1753 | 489 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 490 | shndx = extshndx_buf; |
6cdc0ccc AM |
491 | isym < isymend; |
492 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
493 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
494 | { | |
495 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 496 | /* xgettext:c-format */ |
63a5468a AM |
497 | _bfd_error_handler (_("%B symbol number %lu references" |
498 | " nonexistent SHT_SYMTAB_SHNDX section"), | |
4eca0228 | 499 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
500 | if (alloc_intsym != NULL) |
501 | free (alloc_intsym); | |
8384fb8f AM |
502 | intsym_buf = NULL; |
503 | goto out; | |
504 | } | |
6cdc0ccc AM |
505 | |
506 | out: | |
507 | if (alloc_ext != NULL) | |
508 | free (alloc_ext); | |
509 | if (alloc_extshndx != NULL) | |
510 | free (alloc_extshndx); | |
511 | ||
512 | return intsym_buf; | |
513 | } | |
514 | ||
5cab59f6 AM |
515 | /* Look up a symbol name. */ |
516 | const char * | |
be8dd2ca AM |
517 | bfd_elf_sym_name (bfd *abfd, |
518 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
519 | Elf_Internal_Sym *isym, |
520 | asection *sym_sec) | |
5cab59f6 | 521 | { |
26c61ae5 | 522 | const char *name; |
5cab59f6 | 523 | unsigned int iname = isym->st_name; |
be8dd2ca | 524 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 525 | |
138f35cc JJ |
526 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
527 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 528 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
529 | { |
530 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
531 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
532 | } | |
533 | ||
26c61ae5 L |
534 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
535 | if (name == NULL) | |
536 | name = "(null)"; | |
537 | else if (sym_sec && *name == '\0') | |
538 | name = bfd_section_name (abfd, sym_sec); | |
539 | ||
540 | return name; | |
5cab59f6 AM |
541 | } |
542 | ||
dbb410c3 AM |
543 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
544 | sections. The first element is the flags, the rest are section | |
545 | pointers. */ | |
546 | ||
547 | typedef union elf_internal_group { | |
548 | Elf_Internal_Shdr *shdr; | |
549 | unsigned int flags; | |
550 | } Elf_Internal_Group; | |
551 | ||
b885599b AM |
552 | /* Return the name of the group signature symbol. Why isn't the |
553 | signature just a string? */ | |
554 | ||
555 | static const char * | |
217aa764 | 556 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 557 | { |
9dce4196 | 558 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
559 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
560 | Elf_External_Sym_Shndx eshndx; | |
561 | Elf_Internal_Sym isym; | |
b885599b | 562 | |
13792e9d L |
563 | /* First we need to ensure the symbol table is available. Make sure |
564 | that it is a symbol table section. */ | |
4fbb74a6 AM |
565 | if (ghdr->sh_link >= elf_numsections (abfd)) |
566 | return NULL; | |
13792e9d L |
567 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
568 | if (hdr->sh_type != SHT_SYMTAB | |
569 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
570 | return NULL; |
571 | ||
9dce4196 AM |
572 | /* Go read the symbol. */ |
573 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
574 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
575 | &isym, esym, &eshndx) == NULL) | |
b885599b | 576 | return NULL; |
9dce4196 | 577 | |
26c61ae5 | 578 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
579 | } |
580 | ||
dbb410c3 AM |
581 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
582 | ||
b34976b6 | 583 | static bfd_boolean |
217aa764 | 584 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
585 | { |
586 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
587 | ||
588 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
589 | is set to -1 if there are no SHT_GROUP sections. */ | |
590 | if (num_group == 0) | |
591 | { | |
592 | unsigned int i, shnum; | |
593 | ||
594 | /* First count the number of groups. If we have a SHT_GROUP | |
595 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 596 | shnum = elf_numsections (abfd); |
dbb410c3 | 597 | num_group = 0; |
08a40648 | 598 | |
44534af3 | 599 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 600 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 601 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
602 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
603 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 604 | |
dbb410c3 AM |
605 | for (i = 0; i < shnum; i++) |
606 | { | |
607 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 608 | |
44534af3 | 609 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
610 | num_group += 1; |
611 | } | |
612 | ||
613 | if (num_group == 0) | |
20dbb49d L |
614 | { |
615 | num_group = (unsigned) -1; | |
616 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 617 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
618 | } |
619 | else | |
dbb410c3 AM |
620 | { |
621 | /* We keep a list of elf section headers for group sections, | |
622 | so we can find them quickly. */ | |
20dbb49d | 623 | bfd_size_type amt; |
d0fb9a8d | 624 | |
20dbb49d | 625 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 | 626 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
07d6d2b8 | 627 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); |
dbb410c3 | 628 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 629 | return FALSE; |
ce497010 | 630 | memset (elf_tdata (abfd)->group_sect_ptr, 0, num_group * sizeof (Elf_Internal_Shdr *)); |
dbb410c3 | 631 | num_group = 0; |
ce497010 | 632 | |
dbb410c3 AM |
633 | for (i = 0; i < shnum; i++) |
634 | { | |
635 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 636 | |
44534af3 | 637 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 638 | { |
973ffd63 | 639 | unsigned char *src; |
dbb410c3 AM |
640 | Elf_Internal_Group *dest; |
641 | ||
07d6d2b8 AM |
642 | /* Make sure the group section has a BFD section |
643 | attached to it. */ | |
644 | if (!bfd_section_from_shdr (abfd, i)) | |
645 | return FALSE; | |
646 | ||
dbb410c3 AM |
647 | /* Add to list of sections. */ |
648 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
649 | num_group += 1; | |
650 | ||
651 | /* Read the raw contents. */ | |
652 | BFD_ASSERT (sizeof (*dest) >= 4); | |
653 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 | 654 | shdr->contents = (unsigned char *) |
07d6d2b8 | 655 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); |
1783205a NC |
656 | /* PR binutils/4110: Handle corrupt group headers. */ |
657 | if (shdr->contents == NULL) | |
658 | { | |
659 | _bfd_error_handler | |
695344c0 | 660 | /* xgettext:c-format */ |
63a5468a | 661 | (_("%B: corrupt size field in group section" |
76cfced5 | 662 | " header: %#Lx"), abfd, shdr->sh_size); |
1783205a | 663 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
664 | -- num_group; |
665 | continue; | |
1783205a NC |
666 | } |
667 | ||
668 | memset (shdr->contents, 0, amt); | |
669 | ||
670 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
671 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
672 | != shdr->sh_size)) | |
493a3386 NC |
673 | { |
674 | _bfd_error_handler | |
695344c0 | 675 | /* xgettext:c-format */ |
63a5468a | 676 | (_("%B: invalid size field in group section" |
76cfced5 | 677 | " header: %#Lx"), abfd, shdr->sh_size); |
493a3386 NC |
678 | bfd_set_error (bfd_error_bad_value); |
679 | -- num_group; | |
63a5468a AM |
680 | /* PR 17510: If the group contents are even |
681 | partially corrupt, do not allow any of the | |
682 | contents to be used. */ | |
493a3386 NC |
683 | memset (shdr->contents, 0, amt); |
684 | continue; | |
685 | } | |
708d7d0d | 686 | |
dbb410c3 AM |
687 | /* Translate raw contents, a flag word followed by an |
688 | array of elf section indices all in target byte order, | |
689 | to the flag word followed by an array of elf section | |
690 | pointers. */ | |
691 | src = shdr->contents + shdr->sh_size; | |
692 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 693 | |
dbb410c3 AM |
694 | while (1) |
695 | { | |
696 | unsigned int idx; | |
697 | ||
698 | src -= 4; | |
699 | --dest; | |
700 | idx = H_GET_32 (abfd, src); | |
701 | if (src == shdr->contents) | |
702 | { | |
703 | dest->flags = idx; | |
b885599b AM |
704 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
705 | shdr->bfd_section->flags | |
706 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
707 | break; |
708 | } | |
709 | if (idx >= shnum) | |
710 | { | |
4eca0228 AM |
711 | _bfd_error_handler |
712 | (_("%B: invalid SHT_GROUP entry"), abfd); | |
dbb410c3 AM |
713 | idx = 0; |
714 | } | |
715 | dest->shdr = elf_elfsections (abfd)[idx]; | |
716 | } | |
717 | } | |
718 | } | |
493a3386 NC |
719 | |
720 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
721 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
722 | { | |
723 | elf_tdata (abfd)->num_group = num_group; | |
724 | ||
725 | /* If all groups are invalid then fail. */ | |
726 | if (num_group == 0) | |
727 | { | |
728 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
729 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 AM |
730 | _bfd_error_handler |
731 | (_("%B: no valid group sections found"), abfd); | |
493a3386 NC |
732 | bfd_set_error (bfd_error_bad_value); |
733 | } | |
734 | } | |
dbb410c3 AM |
735 | } |
736 | } | |
737 | ||
738 | if (num_group != (unsigned) -1) | |
739 | { | |
740 | unsigned int i; | |
741 | ||
742 | for (i = 0; i < num_group; i++) | |
743 | { | |
744 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
ce497010 | 745 | Elf_Internal_Group *idx; |
0c54f692 | 746 | bfd_size_type n_elt; |
ce497010 NC |
747 | |
748 | if (shdr == NULL) | |
749 | continue; | |
750 | ||
751 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
752 | if (idx == NULL || shdr->sh_size < 4) |
753 | { | |
754 | /* See PR 21957 for a reproducer. */ | |
755 | /* xgettext:c-format */ | |
756 | _bfd_error_handler (_("%B: group section '%A' has no contents"), | |
757 | abfd, shdr->bfd_section); | |
758 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
759 | bfd_set_error (bfd_error_bad_value); | |
760 | return FALSE; | |
761 | } | |
ce497010 | 762 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
763 | |
764 | /* Look through this group's sections to see if current | |
765 | section is a member. */ | |
766 | while (--n_elt != 0) | |
767 | if ((++idx)->shdr == hdr) | |
768 | { | |
e0e8c97f | 769 | asection *s = NULL; |
dbb410c3 AM |
770 | |
771 | /* We are a member of this group. Go looking through | |
772 | other members to see if any others are linked via | |
773 | next_in_group. */ | |
774 | idx = (Elf_Internal_Group *) shdr->contents; | |
775 | n_elt = shdr->sh_size / 4; | |
776 | while (--n_elt != 0) | |
777 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 778 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
779 | break; |
780 | if (n_elt != 0) | |
781 | { | |
dbb410c3 AM |
782 | /* Snarf the group name from other member, and |
783 | insert current section in circular list. */ | |
945906ff AM |
784 | elf_group_name (newsect) = elf_group_name (s); |
785 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
786 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
787 | } |
788 | else | |
789 | { | |
dbb410c3 AM |
790 | const char *gname; |
791 | ||
b885599b AM |
792 | gname = group_signature (abfd, shdr); |
793 | if (gname == NULL) | |
b34976b6 | 794 | return FALSE; |
945906ff | 795 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
796 | |
797 | /* Start a circular list with one element. */ | |
945906ff | 798 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 799 | } |
b885599b | 800 | |
9dce4196 AM |
801 | /* If the group section has been created, point to the |
802 | new member. */ | |
dbb410c3 | 803 | if (shdr->bfd_section != NULL) |
945906ff | 804 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 805 | |
dbb410c3 AM |
806 | i = num_group - 1; |
807 | break; | |
808 | } | |
809 | } | |
810 | } | |
811 | ||
945906ff | 812 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 813 | { |
695344c0 | 814 | /* xgettext:c-format */ |
0c54f692 | 815 | _bfd_error_handler (_("%B: no group info for section '%A'"), |
4eca0228 | 816 | abfd, newsect); |
493a3386 | 817 | return FALSE; |
dbb410c3 | 818 | } |
b34976b6 | 819 | return TRUE; |
dbb410c3 AM |
820 | } |
821 | ||
3d7f7666 | 822 | bfd_boolean |
dd863624 | 823 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
824 | { |
825 | unsigned int i; | |
826 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
827 | bfd_boolean result = TRUE; | |
dd863624 L |
828 | asection *s; |
829 | ||
830 | /* Process SHF_LINK_ORDER. */ | |
831 | for (s = abfd->sections; s != NULL; s = s->next) | |
832 | { | |
833 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
834 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
835 | { | |
836 | unsigned int elfsec = this_hdr->sh_link; | |
837 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
838 | not set the sh_link or sh_info fields. Hence we could | |
839 | get the situation where elfsec is 0. */ | |
840 | if (elfsec == 0) | |
841 | { | |
4fbb74a6 | 842 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
843 | if (bed->link_order_error_handler) |
844 | bed->link_order_error_handler | |
695344c0 | 845 | /* xgettext:c-format */ |
dd863624 L |
846 | (_("%B: warning: sh_link not set for section `%A'"), |
847 | abfd, s); | |
848 | } | |
849 | else | |
850 | { | |
91d6fa6a | 851 | asection *linksec = NULL; |
25bbc984 | 852 | |
4fbb74a6 AM |
853 | if (elfsec < elf_numsections (abfd)) |
854 | { | |
855 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 856 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 857 | } |
25bbc984 L |
858 | |
859 | /* PR 1991, 2008: | |
860 | Some strip/objcopy may leave an incorrect value in | |
861 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 862 | if (linksec == NULL) |
25bbc984 | 863 | { |
4eca0228 | 864 | _bfd_error_handler |
695344c0 | 865 | /* xgettext:c-format */ |
25bbc984 | 866 | (_("%B: sh_link [%d] in section `%A' is incorrect"), |
c08bb8dd | 867 | s->owner, elfsec, s); |
25bbc984 L |
868 | result = FALSE; |
869 | } | |
870 | ||
91d6fa6a | 871 | elf_linked_to_section (s) = linksec; |
dd863624 L |
872 | } |
873 | } | |
53720c49 AM |
874 | else if (this_hdr->sh_type == SHT_GROUP |
875 | && elf_next_in_group (s) == NULL) | |
876 | { | |
4eca0228 | 877 | _bfd_error_handler |
695344c0 | 878 | /* xgettext:c-format */ |
53720c49 AM |
879 | (_("%B: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
880 | abfd, elf_section_data (s)->this_idx); | |
881 | result = FALSE; | |
882 | } | |
dd863624 | 883 | } |
3d7f7666 | 884 | |
dd863624 | 885 | /* Process section groups. */ |
3d7f7666 L |
886 | if (num_group == (unsigned) -1) |
887 | return result; | |
888 | ||
889 | for (i = 0; i < num_group; i++) | |
890 | { | |
891 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
892 | Elf_Internal_Group *idx; |
893 | unsigned int n_elt; | |
3d7f7666 | 894 | |
4b0e8a5f NC |
895 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
896 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
897 | { | |
4eca0228 | 898 | _bfd_error_handler |
695344c0 | 899 | /* xgettext:c-format */ |
4b0e8a5f NC |
900 | (_("%B: section group entry number %u is corrupt"), |
901 | abfd, i); | |
902 | result = FALSE; | |
903 | continue; | |
904 | } | |
905 | ||
906 | idx = (Elf_Internal_Group *) shdr->contents; | |
907 | n_elt = shdr->sh_size / 4; | |
1b786873 | 908 | |
3d7f7666 | 909 | while (--n_elt != 0) |
24d3e51b NC |
910 | { |
911 | ++ idx; | |
912 | ||
913 | if (idx->shdr == NULL) | |
914 | continue; | |
915 | else if (idx->shdr->bfd_section) | |
916 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
917 | else if (idx->shdr->sh_type != SHT_RELA |
918 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
919 | { |
920 | /* There are some unknown sections in the group. */ | |
921 | _bfd_error_handler | |
922 | /* xgettext:c-format */ | |
923 | (_("%B: unknown type [%#x] section `%s' in group [%A]"), | |
924 | abfd, | |
925 | idx->shdr->sh_type, | |
926 | bfd_elf_string_from_elf_section (abfd, | |
927 | (elf_elfheader (abfd) | |
928 | ->e_shstrndx), | |
929 | idx->shdr->sh_name), | |
930 | shdr->bfd_section); | |
931 | result = FALSE; | |
932 | } | |
933 | } | |
3d7f7666 | 934 | } |
24d3e51b | 935 | |
3d7f7666 L |
936 | return result; |
937 | } | |
938 | ||
72adc230 AM |
939 | bfd_boolean |
940 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
941 | { | |
942 | return elf_next_in_group (sec) != NULL; | |
943 | } | |
944 | ||
f6fe1ccd L |
945 | static char * |
946 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
947 | { | |
948 | unsigned int len = strlen (name); | |
949 | char *new_name = bfd_alloc (abfd, len + 2); | |
950 | if (new_name == NULL) | |
951 | return NULL; | |
952 | new_name[0] = '.'; | |
953 | new_name[1] = 'z'; | |
954 | memcpy (new_name + 2, name + 1, len); | |
955 | return new_name; | |
956 | } | |
957 | ||
958 | static char * | |
959 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
960 | { | |
961 | unsigned int len = strlen (name); | |
962 | char *new_name = bfd_alloc (abfd, len); | |
963 | if (new_name == NULL) | |
964 | return NULL; | |
965 | new_name[0] = '.'; | |
966 | memcpy (new_name + 1, name + 2, len - 1); | |
967 | return new_name; | |
968 | } | |
969 | ||
252b5132 RH |
970 | /* Make a BFD section from an ELF section. We store a pointer to the |
971 | BFD section in the bfd_section field of the header. */ | |
972 | ||
b34976b6 | 973 | bfd_boolean |
217aa764 AM |
974 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
975 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
976 | const char *name, |
977 | int shindex) | |
252b5132 RH |
978 | { |
979 | asection *newsect; | |
980 | flagword flags; | |
9c5bfbb7 | 981 | const struct elf_backend_data *bed; |
252b5132 RH |
982 | |
983 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 984 | return TRUE; |
252b5132 RH |
985 | |
986 | newsect = bfd_make_section_anyway (abfd, name); | |
987 | if (newsect == NULL) | |
b34976b6 | 988 | return FALSE; |
252b5132 | 989 | |
1829f4b2 AM |
990 | hdr->bfd_section = newsect; |
991 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 992 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 993 | |
2f89ff8d L |
994 | /* Always use the real type/flags. */ |
995 | elf_section_type (newsect) = hdr->sh_type; | |
996 | elf_section_flags (newsect) = hdr->sh_flags; | |
997 | ||
252b5132 RH |
998 | newsect->filepos = hdr->sh_offset; |
999 | ||
1000 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
1001 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
1002 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 1003 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 1004 | return FALSE; |
252b5132 RH |
1005 | |
1006 | flags = SEC_NO_FLAGS; | |
1007 | if (hdr->sh_type != SHT_NOBITS) | |
1008 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1009 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1010 | flags |= SEC_GROUP; |
252b5132 RH |
1011 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1012 | { | |
1013 | flags |= SEC_ALLOC; | |
1014 | if (hdr->sh_type != SHT_NOBITS) | |
1015 | flags |= SEC_LOAD; | |
1016 | } | |
1017 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1018 | flags |= SEC_READONLY; | |
1019 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1020 | flags |= SEC_CODE; | |
1021 | else if ((flags & SEC_LOAD) != 0) | |
1022 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1023 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1024 | { | |
1025 | flags |= SEC_MERGE; | |
1026 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1027 | } |
84865015 NC |
1028 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1029 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1030 | if (hdr->sh_flags & SHF_GROUP) |
1031 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1032 | return FALSE; |
13ae64f3 JJ |
1033 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1034 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1035 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1036 | flags |= SEC_EXCLUDE; | |
252b5132 | 1037 | |
3d2b39cf | 1038 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1039 | { |
3d2b39cf L |
1040 | /* The debugging sections appear to be recognized only by name, |
1041 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1042 | if (name [0] == '.') |
1043 | { | |
f073ced3 AM |
1044 | const char *p; |
1045 | int n; | |
1046 | if (name[1] == 'd') | |
1047 | p = ".debug", n = 6; | |
1048 | else if (name[1] == 'g' && name[2] == 'n') | |
1049 | p = ".gnu.linkonce.wi.", n = 17; | |
1050 | else if (name[1] == 'g' && name[2] == 'd') | |
1051 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1052 | else if (name[1] == 'l') | |
1053 | p = ".line", n = 5; | |
1054 | else if (name[1] == 's') | |
1055 | p = ".stab", n = 5; | |
1056 | else if (name[1] == 'z') | |
1057 | p = ".zdebug", n = 7; | |
1058 | else | |
1059 | p = NULL, n = 0; | |
1060 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1061 | flags |= SEC_DEBUGGING; |
1062 | } | |
1063 | } | |
252b5132 RH |
1064 | |
1065 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1066 | only link a single copy of the section. This is used to support | |
1067 | g++. g++ will emit each template expansion in its own section. | |
1068 | The symbols will be defined as weak, so that multiple definitions | |
1069 | are permitted. The GNU linker extension is to actually discard | |
1070 | all but one of the sections. */ | |
0112cd26 | 1071 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1072 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1073 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1074 | ||
fa152c49 JW |
1075 | bed = get_elf_backend_data (abfd); |
1076 | if (bed->elf_backend_section_flags) | |
1077 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1078 | return FALSE; |
fa152c49 | 1079 | |
252b5132 | 1080 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 1081 | return FALSE; |
252b5132 | 1082 | |
718175fa JK |
1083 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1084 | separate debug info files which may have the segments offsets corrupted. | |
1085 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1086 | if (hdr->sh_type == SHT_NOTE) | |
1087 | { | |
baea7ef1 | 1088 | bfd_byte *contents; |
718175fa | 1089 | |
baea7ef1 | 1090 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1091 | return FALSE; |
1092 | ||
276da9b3 L |
1093 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1094 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1095 | free (contents); |
1096 | } | |
1097 | ||
252b5132 RH |
1098 | if ((flags & SEC_ALLOC) != 0) |
1099 | { | |
1100 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1101 | unsigned int i, nload; |
1102 | ||
1103 | /* Some ELF linkers produce binaries with all the program header | |
1104 | p_paddr fields zero. If we have such a binary with more than | |
1105 | one PT_LOAD header, then leave the section lma equal to vma | |
1106 | so that we don't create sections with overlapping lma. */ | |
1107 | phdr = elf_tdata (abfd)->phdr; | |
1108 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1109 | if (phdr->p_paddr != 0) | |
1110 | break; | |
1111 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1112 | ++nload; | |
1113 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1114 | return TRUE; | |
252b5132 | 1115 | |
252b5132 RH |
1116 | phdr = elf_tdata (abfd)->phdr; |
1117 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1118 | { | |
86b2281f AM |
1119 | if (((phdr->p_type == PT_LOAD |
1120 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1121 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1122 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1123 | { |
88967714 AM |
1124 | if ((flags & SEC_LOAD) == 0) |
1125 | newsect->lma = (phdr->p_paddr | |
1126 | + hdr->sh_addr - phdr->p_vaddr); | |
1127 | else | |
1128 | /* We used to use the same adjustment for SEC_LOAD | |
1129 | sections, but that doesn't work if the segment | |
1130 | is packed with code from multiple VMAs. | |
1131 | Instead we calculate the section LMA based on | |
1132 | the segment LMA. It is assumed that the | |
1133 | segment will contain sections with contiguous | |
1134 | LMAs, even if the VMAs are not. */ | |
1135 | newsect->lma = (phdr->p_paddr | |
1136 | + hdr->sh_offset - phdr->p_offset); | |
1137 | ||
1138 | /* With contiguous segments, we can't tell from file | |
1139 | offsets whether a section with zero size should | |
1140 | be placed at the end of one segment or the | |
1141 | beginning of the next. Decide based on vaddr. */ | |
1142 | if (hdr->sh_addr >= phdr->p_vaddr | |
1143 | && (hdr->sh_addr + hdr->sh_size | |
1144 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1145 | break; | |
252b5132 RH |
1146 | } |
1147 | } | |
1148 | } | |
1149 | ||
4a114e3e L |
1150 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1151 | .zdebug_*, after the section flags is set. */ | |
1152 | if ((flags & SEC_DEBUGGING) | |
1153 | && ((name[1] == 'd' && name[6] == '_') | |
1154 | || (name[1] == 'z' && name[7] == '_'))) | |
1155 | { | |
1156 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1157 | int compression_header_size; |
dab394de | 1158 | bfd_size_type uncompressed_size; |
151411f8 L |
1159 | bfd_boolean compressed |
1160 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de L |
1161 | &compression_header_size, |
1162 | &uncompressed_size); | |
4a114e3e | 1163 | |
151411f8 | 1164 | if (compressed) |
4a114e3e L |
1165 | { |
1166 | /* Compressed section. Check if we should decompress. */ | |
1167 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1168 | action = decompress; | |
1169 | } | |
151411f8 L |
1170 | |
1171 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1172 | section. Check if we should compress. */ | |
1173 | if (action == nothing) | |
4a114e3e | 1174 | { |
151411f8 L |
1175 | if (newsect->size != 0 |
1176 | && (abfd->flags & BFD_COMPRESS) | |
1177 | && compression_header_size >= 0 | |
dab394de | 1178 | && uncompressed_size > 0 |
151411f8 L |
1179 | && (!compressed |
1180 | || ((compression_header_size > 0) | |
1181 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1182 | action = compress; |
151411f8 L |
1183 | else |
1184 | return TRUE; | |
4a114e3e L |
1185 | } |
1186 | ||
151411f8 | 1187 | if (action == compress) |
4a114e3e | 1188 | { |
4a114e3e L |
1189 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1190 | { | |
4eca0228 | 1191 | _bfd_error_handler |
695344c0 | 1192 | /* xgettext:c-format */ |
bc823199 | 1193 | (_("%B: unable to initialize compress status for section %s"), |
4a114e3e L |
1194 | abfd, name); |
1195 | return FALSE; | |
1196 | } | |
151411f8 L |
1197 | } |
1198 | else | |
1199 | { | |
4a114e3e L |
1200 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1201 | { | |
4eca0228 | 1202 | _bfd_error_handler |
695344c0 | 1203 | /* xgettext:c-format */ |
bc823199 | 1204 | (_("%B: unable to initialize decompress status for section %s"), |
4a114e3e L |
1205 | abfd, name); |
1206 | return FALSE; | |
1207 | } | |
151411f8 L |
1208 | } |
1209 | ||
f6fe1ccd | 1210 | if (abfd->is_linker_input) |
151411f8 | 1211 | { |
f6fe1ccd L |
1212 | if (name[1] == 'z' |
1213 | && (action == decompress | |
1214 | || (action == compress | |
1215 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1216 | { |
f6fe1ccd L |
1217 | /* Convert section name from .zdebug_* to .debug_* so |
1218 | that linker will consider this section as a debug | |
1219 | section. */ | |
1220 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1221 | if (new_name == NULL) |
1222 | return FALSE; | |
f6fe1ccd | 1223 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1224 | } |
4a114e3e | 1225 | } |
f6fe1ccd L |
1226 | else |
1227 | /* For objdump, don't rename the section. For objcopy, delay | |
1228 | section rename to elf_fake_sections. */ | |
1229 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1230 | } |
1231 | ||
b34976b6 | 1232 | return TRUE; |
252b5132 RH |
1233 | } |
1234 | ||
84865015 NC |
1235 | const char *const bfd_elf_section_type_names[] = |
1236 | { | |
252b5132 RH |
1237 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1238 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1239 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1240 | }; | |
1241 | ||
1049f94e | 1242 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1243 | output, and the reloc is against an external symbol, and nothing |
1244 | has given us any additional addend, the resulting reloc will also | |
1245 | be against the same symbol. In such a case, we don't want to | |
1246 | change anything about the way the reloc is handled, since it will | |
1247 | all be done at final link time. Rather than put special case code | |
1248 | into bfd_perform_relocation, all the reloc types use this howto | |
1249 | function. It just short circuits the reloc if producing | |
1049f94e | 1250 | relocatable output against an external symbol. */ |
252b5132 | 1251 | |
252b5132 | 1252 | bfd_reloc_status_type |
217aa764 AM |
1253 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1254 | arelent *reloc_entry, | |
1255 | asymbol *symbol, | |
1256 | void *data ATTRIBUTE_UNUSED, | |
1257 | asection *input_section, | |
1258 | bfd *output_bfd, | |
1259 | char **error_message ATTRIBUTE_UNUSED) | |
1260 | { | |
1261 | if (output_bfd != NULL | |
252b5132 RH |
1262 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1263 | && (! reloc_entry->howto->partial_inplace | |
1264 | || reloc_entry->addend == 0)) | |
1265 | { | |
1266 | reloc_entry->address += input_section->output_offset; | |
1267 | return bfd_reloc_ok; | |
1268 | } | |
1269 | ||
1270 | return bfd_reloc_continue; | |
1271 | } | |
1272 | \f | |
84865015 NC |
1273 | /* Returns TRUE if section A matches section B. |
1274 | Names, addresses and links may be different, but everything else | |
1275 | should be the same. */ | |
1276 | ||
1277 | static bfd_boolean | |
5522f910 NC |
1278 | section_match (const Elf_Internal_Shdr * a, |
1279 | const Elf_Internal_Shdr * b) | |
84865015 NC |
1280 | { |
1281 | return | |
07d6d2b8 | 1282 | a->sh_type == b->sh_type |
5522f910 NC |
1283 | && (a->sh_flags & ~ SHF_INFO_LINK) |
1284 | == (b->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1285 | && a->sh_addralign == b->sh_addralign |
1286 | && a->sh_size == b->sh_size | |
1287 | && a->sh_entsize == b->sh_entsize | |
1288 | /* FIXME: Check sh_addr ? */ | |
1289 | ; | |
1290 | } | |
1291 | ||
1292 | /* Find a section in OBFD that has the same characteristics | |
1293 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1294 | none can be found. Check's section HINT first, as this is likely | |
1295 | to be the correct section. */ | |
1296 | ||
1297 | static unsigned int | |
5cc4ca83 ST |
1298 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1299 | const unsigned int hint) | |
84865015 NC |
1300 | { |
1301 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1302 | unsigned int i; | |
1303 | ||
a55c9876 NC |
1304 | BFD_ASSERT (iheader != NULL); |
1305 | ||
1306 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1307 | if (hint < elf_numsections (obfd) |
1308 | && oheaders[hint] != NULL | |
a55c9876 | 1309 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1310 | return hint; |
1311 | ||
1312 | for (i = 1; i < elf_numsections (obfd); i++) | |
1313 | { | |
1314 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1315 | ||
a55c9876 NC |
1316 | if (oheader == NULL) |
1317 | continue; | |
84865015 NC |
1318 | if (section_match (oheader, iheader)) |
1319 | /* FIXME: Do we care if there is a potential for | |
1320 | multiple matches ? */ | |
1321 | return i; | |
1322 | } | |
1323 | ||
1324 | return SHN_UNDEF; | |
1325 | } | |
1326 | ||
5522f910 NC |
1327 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1328 | Processor specific section, based upon a matching input section. | |
1329 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1330 | |
5522f910 NC |
1331 | static bfd_boolean |
1332 | copy_special_section_fields (const bfd *ibfd, | |
1333 | bfd *obfd, | |
1334 | const Elf_Internal_Shdr *iheader, | |
1335 | Elf_Internal_Shdr *oheader, | |
1336 | const unsigned int secnum) | |
1337 | { | |
1338 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1339 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1340 | bfd_boolean changed = FALSE; | |
1341 | unsigned int sh_link; | |
1342 | ||
1343 | if (oheader->sh_type == SHT_NOBITS) | |
1344 | { | |
1345 | /* This is a feature for objcopy --only-keep-debug: | |
1346 | When a section's type is changed to NOBITS, we preserve | |
1347 | the sh_link and sh_info fields so that they can be | |
1348 | matched up with the original. | |
1349 | ||
1350 | Note: Strictly speaking these assignments are wrong. | |
1351 | The sh_link and sh_info fields should point to the | |
1352 | relevent sections in the output BFD, which may not be in | |
1353 | the same location as they were in the input BFD. But | |
1354 | the whole point of this action is to preserve the | |
1355 | original values of the sh_link and sh_info fields, so | |
1356 | that they can be matched up with the section headers in | |
1357 | the original file. So strictly speaking we may be | |
1358 | creating an invalid ELF file, but it is only for a file | |
1359 | that just contains debug info and only for sections | |
1360 | without any contents. */ | |
1361 | if (oheader->sh_link == 0) | |
1362 | oheader->sh_link = iheader->sh_link; | |
1363 | if (oheader->sh_info == 0) | |
1364 | oheader->sh_info = iheader->sh_info; | |
1365 | return TRUE; | |
1366 | } | |
1367 | ||
1368 | /* Allow the target a chance to decide how these fields should be set. */ | |
1369 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1370 | && bed->elf_backend_copy_special_section_fields | |
1371 | (ibfd, obfd, iheader, oheader)) | |
1372 | return TRUE; | |
1373 | ||
1374 | /* We have an iheader which might match oheader, and which has non-zero | |
1375 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1376 | the section in the output bfd which corresponds to the linked section | |
1377 | in the input bfd. */ | |
1378 | if (iheader->sh_link != SHN_UNDEF) | |
1379 | { | |
4f3ca05b NC |
1380 | /* See PR 20931 for a reproducer. */ |
1381 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1382 | { | |
76cfced5 | 1383 | _bfd_error_handler |
4f3ca05b NC |
1384 | /* xgettext:c-format */ |
1385 | (_("%B: Invalid sh_link field (%d) in section number %d"), | |
1386 | ibfd, iheader->sh_link, secnum); | |
1387 | return FALSE; | |
1388 | } | |
1389 | ||
5522f910 NC |
1390 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1391 | if (sh_link != SHN_UNDEF) | |
1392 | { | |
1393 | oheader->sh_link = sh_link; | |
1394 | changed = TRUE; | |
1395 | } | |
1396 | else | |
1397 | /* FIXME: Should we install iheader->sh_link | |
1398 | if we could not find a match ? */ | |
76cfced5 | 1399 | _bfd_error_handler |
695344c0 | 1400 | /* xgettext:c-format */ |
5522f910 NC |
1401 | (_("%B: Failed to find link section for section %d"), obfd, secnum); |
1402 | } | |
1403 | ||
1404 | if (iheader->sh_info) | |
1405 | { | |
1406 | /* The sh_info field can hold arbitrary information, but if the | |
1407 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1408 | section index. */ | |
1409 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1410 | { | |
1411 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1412 | iheader->sh_info); | |
1413 | if (sh_link != SHN_UNDEF) | |
1414 | oheader->sh_flags |= SHF_INFO_LINK; | |
1415 | } | |
1416 | else | |
1417 | /* No idea what it means - just copy it. */ | |
1418 | sh_link = iheader->sh_info; | |
1419 | ||
1420 | if (sh_link != SHN_UNDEF) | |
1421 | { | |
1422 | oheader->sh_info = sh_link; | |
1423 | changed = TRUE; | |
1424 | } | |
1425 | else | |
76cfced5 | 1426 | _bfd_error_handler |
695344c0 | 1427 | /* xgettext:c-format */ |
5522f910 NC |
1428 | (_("%B: Failed to find info section for section %d"), obfd, secnum); |
1429 | } | |
1430 | ||
1431 | return changed; | |
1432 | } | |
07d6d2b8 | 1433 | |
0ac4564e L |
1434 | /* Copy the program header and other data from one object module to |
1435 | another. */ | |
252b5132 | 1436 | |
b34976b6 | 1437 | bfd_boolean |
217aa764 | 1438 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1439 | { |
5522f910 NC |
1440 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1441 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1442 | const struct elf_backend_data *bed; | |
84865015 NC |
1443 | unsigned int i; |
1444 | ||
2d502050 | 1445 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1446 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1447 | return TRUE; |
2d502050 | 1448 | |
57b828ef L |
1449 | if (!elf_flags_init (obfd)) |
1450 | { | |
1451 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1452 | elf_flags_init (obfd) = TRUE; | |
1453 | } | |
2d502050 | 1454 | |
0ac4564e | 1455 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1456 | |
1457 | /* Also copy the EI_OSABI field. */ | |
1458 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1459 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1460 | |
5522f910 NC |
1461 | /* If set, copy the EI_ABIVERSION field. */ |
1462 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1463 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1464 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1465 | |
104d59d1 JM |
1466 | /* Copy object attributes. */ |
1467 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1468 | |
84865015 NC |
1469 | if (iheaders == NULL || oheaders == NULL) |
1470 | return TRUE; | |
63b9bbb7 | 1471 | |
5522f910 NC |
1472 | bed = get_elf_backend_data (obfd); |
1473 | ||
1474 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1475 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1476 | { |
84865015 NC |
1477 | unsigned int j; |
1478 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1479 | |
5522f910 NC |
1480 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1481 | because of a special case need for generating separate debug info | |
1482 | files. See below for more details. */ | |
84865015 NC |
1483 | if (oheader == NULL |
1484 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1485 | && oheader->sh_type < SHT_LOOS)) |
1486 | continue; | |
1487 | ||
1488 | /* Ignore empty sections, and sections whose | |
1489 | fields have already been initialised. */ | |
1490 | if (oheader->sh_size == 0 | |
84865015 NC |
1491 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1492 | continue; | |
63b9bbb7 | 1493 | |
84865015 | 1494 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1495 | First we try for a direct mapping between the input and output sections. */ |
1496 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1497 | { | |
1498 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1499 | ||
1500 | if (iheader == NULL) | |
1501 | continue; | |
1502 | ||
1503 | if (oheader->bfd_section != NULL | |
1504 | && iheader->bfd_section != NULL | |
1505 | && iheader->bfd_section->output_section != NULL | |
1506 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1507 | { | |
1508 | /* We have found a connection from the input section to the | |
1509 | output section. Attempt to copy the header fields. If | |
1510 | this fails then do not try any further sections - there | |
1511 | should only be a one-to-one mapping between input and output. */ | |
1512 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1513 | j = elf_numsections (ibfd); | |
1514 | break; | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | if (j < elf_numsections (ibfd)) | |
1519 | continue; | |
1520 | ||
1521 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1522 | Unfortunately we cannot compare names as the output string table |
1523 | is empty, so instead we check size, address and type. */ | |
1524 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1525 | { | |
5522f910 | 1526 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1527 | |
5522f910 NC |
1528 | if (iheader == NULL) |
1529 | continue; | |
1530 | ||
1531 | /* Try matching fields in the input section's header. | |
1532 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1533 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1534 | input type. */ | |
1535 | if ((oheader->sh_type == SHT_NOBITS | |
1536 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1537 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1538 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1539 | && iheader->sh_addralign == oheader->sh_addralign |
1540 | && iheader->sh_entsize == oheader->sh_entsize | |
1541 | && iheader->sh_size == oheader->sh_size | |
1542 | && iheader->sh_addr == oheader->sh_addr | |
1543 | && (iheader->sh_info != oheader->sh_info | |
1544 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1545 | { |
5522f910 NC |
1546 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1547 | break; | |
63b9bbb7 NC |
1548 | } |
1549 | } | |
5522f910 NC |
1550 | |
1551 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1552 | { | |
1553 | /* Final attempt. Call the backend copy function | |
1554 | with a NULL input section. */ | |
1555 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1556 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1557 | } | |
63b9bbb7 NC |
1558 | } |
1559 | ||
b34976b6 | 1560 | return TRUE; |
2d502050 L |
1561 | } |
1562 | ||
cedc298e L |
1563 | static const char * |
1564 | get_segment_type (unsigned int p_type) | |
1565 | { | |
1566 | const char *pt; | |
1567 | switch (p_type) | |
1568 | { | |
1569 | case PT_NULL: pt = "NULL"; break; | |
1570 | case PT_LOAD: pt = "LOAD"; break; | |
1571 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1572 | case PT_INTERP: pt = "INTERP"; break; | |
1573 | case PT_NOTE: pt = "NOTE"; break; | |
1574 | case PT_SHLIB: pt = "SHLIB"; break; | |
1575 | case PT_PHDR: pt = "PHDR"; break; | |
1576 | case PT_TLS: pt = "TLS"; break; | |
1577 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1578 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1579 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1580 | default: pt = NULL; break; | |
1581 | } | |
1582 | return pt; | |
1583 | } | |
1584 | ||
f0b79d91 L |
1585 | /* Print out the program headers. */ |
1586 | ||
b34976b6 | 1587 | bfd_boolean |
217aa764 | 1588 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1589 | { |
a50b1753 | 1590 | FILE *f = (FILE *) farg; |
252b5132 RH |
1591 | Elf_Internal_Phdr *p; |
1592 | asection *s; | |
1593 | bfd_byte *dynbuf = NULL; | |
1594 | ||
1595 | p = elf_tdata (abfd)->phdr; | |
1596 | if (p != NULL) | |
1597 | { | |
1598 | unsigned int i, c; | |
1599 | ||
1600 | fprintf (f, _("\nProgram Header:\n")); | |
1601 | c = elf_elfheader (abfd)->e_phnum; | |
1602 | for (i = 0; i < c; i++, p++) | |
1603 | { | |
cedc298e | 1604 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1605 | char buf[20]; |
1606 | ||
cedc298e | 1607 | if (pt == NULL) |
252b5132 | 1608 | { |
cedc298e L |
1609 | sprintf (buf, "0x%lx", p->p_type); |
1610 | pt = buf; | |
252b5132 | 1611 | } |
dc810e39 | 1612 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1613 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1614 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1615 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1616 | fprintf (f, " paddr 0x"); |
60b89a18 | 1617 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1618 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1619 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1620 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1621 | fprintf (f, " memsz 0x"); |
60b89a18 | 1622 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1623 | fprintf (f, " flags %c%c%c", |
1624 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1625 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1626 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1627 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1628 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1629 | fprintf (f, "\n"); |
1630 | } | |
1631 | } | |
1632 | ||
1633 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1634 | if (s != NULL) | |
1635 | { | |
cb33740c | 1636 | unsigned int elfsec; |
dc810e39 | 1637 | unsigned long shlink; |
252b5132 RH |
1638 | bfd_byte *extdyn, *extdynend; |
1639 | size_t extdynsize; | |
217aa764 | 1640 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1641 | |
1642 | fprintf (f, _("\nDynamic Section:\n")); | |
1643 | ||
eea6121a | 1644 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1645 | goto error_return; |
1646 | ||
1647 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1648 | if (elfsec == SHN_BAD) |
252b5132 | 1649 | goto error_return; |
dc810e39 | 1650 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1651 | |
1652 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1653 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1654 | ||
1655 | extdyn = dynbuf; | |
06614111 NC |
1656 | /* PR 17512: file: 6f427532. */ |
1657 | if (s->size < extdynsize) | |
1658 | goto error_return; | |
eea6121a | 1659 | extdynend = extdyn + s->size; |
1036838a | 1660 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1661 | Fix range check. */ |
1036838a | 1662 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1663 | { |
1664 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1665 | const char *name = ""; |
252b5132 | 1666 | char ab[20]; |
b34976b6 | 1667 | bfd_boolean stringp; |
ad9563d6 | 1668 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1669 | |
217aa764 | 1670 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1671 | |
1672 | if (dyn.d_tag == DT_NULL) | |
1673 | break; | |
1674 | ||
b34976b6 | 1675 | stringp = FALSE; |
252b5132 RH |
1676 | switch (dyn.d_tag) |
1677 | { | |
1678 | default: | |
ad9563d6 CM |
1679 | if (bed->elf_backend_get_target_dtag) |
1680 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1681 | ||
1682 | if (!strcmp (name, "")) | |
1683 | { | |
cd9af601 | 1684 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1685 | name = ab; |
1686 | } | |
252b5132 RH |
1687 | break; |
1688 | ||
b34976b6 | 1689 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1690 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1691 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1692 | case DT_HASH: name = "HASH"; break; | |
1693 | case DT_STRTAB: name = "STRTAB"; break; | |
1694 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1695 | case DT_RELA: name = "RELA"; break; | |
1696 | case DT_RELASZ: name = "RELASZ"; break; | |
1697 | case DT_RELAENT: name = "RELAENT"; break; | |
1698 | case DT_STRSZ: name = "STRSZ"; break; | |
1699 | case DT_SYMENT: name = "SYMENT"; break; | |
1700 | case DT_INIT: name = "INIT"; break; | |
1701 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1702 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1703 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1704 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1705 | case DT_REL: name = "REL"; break; | |
1706 | case DT_RELSZ: name = "RELSZ"; break; | |
1707 | case DT_RELENT: name = "RELENT"; break; | |
1708 | case DT_PLTREL: name = "PLTREL"; break; | |
1709 | case DT_DEBUG: name = "DEBUG"; break; | |
1710 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1711 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1712 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1713 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1714 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1715 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1716 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1717 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1718 | case DT_FLAGS: name = "FLAGS"; break; |
1719 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1720 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1721 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1722 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1723 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1724 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1725 | case DT_FEATURE: name = "FEATURE"; break; | |
1726 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1727 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1728 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1729 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1730 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1731 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1732 | case DT_PLTPAD: name = "PLTPAD"; break; |
1733 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1734 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1735 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1736 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1737 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1738 | case DT_VERSYM: name = "VERSYM"; break; |
1739 | case DT_VERDEF: name = "VERDEF"; break; | |
1740 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1741 | case DT_VERNEED: name = "VERNEED"; break; | |
1742 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1743 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1744 | case DT_USED: name = "USED"; break; |
b34976b6 | 1745 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1746 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1747 | } |
1748 | ||
ad9563d6 | 1749 | fprintf (f, " %-20s ", name); |
252b5132 | 1750 | if (! stringp) |
a1f3c56e AN |
1751 | { |
1752 | fprintf (f, "0x"); | |
1753 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1754 | } | |
252b5132 RH |
1755 | else |
1756 | { | |
1757 | const char *string; | |
dc810e39 | 1758 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1759 | |
dc810e39 | 1760 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1761 | if (string == NULL) |
1762 | goto error_return; | |
1763 | fprintf (f, "%s", string); | |
1764 | } | |
1765 | fprintf (f, "\n"); | |
1766 | } | |
1767 | ||
1768 | free (dynbuf); | |
1769 | dynbuf = NULL; | |
1770 | } | |
1771 | ||
1772 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1773 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1774 | { | |
fc0e6df6 | 1775 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1776 | return FALSE; |
252b5132 RH |
1777 | } |
1778 | ||
1779 | if (elf_dynverdef (abfd) != 0) | |
1780 | { | |
1781 | Elf_Internal_Verdef *t; | |
1782 | ||
1783 | fprintf (f, _("\nVersion definitions:\n")); | |
1784 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1785 | { | |
1786 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1787 | t->vd_flags, t->vd_hash, |
1788 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1789 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1790 | { |
1791 | Elf_Internal_Verdaux *a; | |
1792 | ||
1793 | fprintf (f, "\t"); | |
1794 | for (a = t->vd_auxptr->vda_nextptr; | |
1795 | a != NULL; | |
1796 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1797 | fprintf (f, "%s ", |
1798 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1799 | fprintf (f, "\n"); |
1800 | } | |
1801 | } | |
1802 | } | |
1803 | ||
1804 | if (elf_dynverref (abfd) != 0) | |
1805 | { | |
1806 | Elf_Internal_Verneed *t; | |
1807 | ||
1808 | fprintf (f, _("\nVersion References:\n")); | |
1809 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1810 | { | |
1811 | Elf_Internal_Vernaux *a; | |
1812 | ||
d0fb9a8d JJ |
1813 | fprintf (f, _(" required from %s:\n"), |
1814 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1815 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1816 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1817 | a->vna_flags, a->vna_other, |
1818 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1819 | } |
1820 | } | |
1821 | ||
b34976b6 | 1822 | return TRUE; |
252b5132 RH |
1823 | |
1824 | error_return: | |
1825 | if (dynbuf != NULL) | |
1826 | free (dynbuf); | |
b34976b6 | 1827 | return FALSE; |
252b5132 RH |
1828 | } |
1829 | ||
bb4d2ac2 L |
1830 | /* Get version string. */ |
1831 | ||
1832 | const char * | |
60bb06bc L |
1833 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1834 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1835 | { |
1836 | const char *version_string = NULL; | |
1837 | if (elf_dynversym (abfd) != 0 | |
1838 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1839 | { | |
1840 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1841 | ||
1842 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1843 | vernum &= VERSYM_VERSION; | |
1844 | ||
1845 | if (vernum == 0) | |
1846 | version_string = ""; | |
1847 | else if (vernum == 1) | |
1848 | version_string = "Base"; | |
1849 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1850 | version_string = | |
1851 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1852 | else | |
1853 | { | |
1854 | Elf_Internal_Verneed *t; | |
1855 | ||
1856 | version_string = ""; | |
1857 | for (t = elf_tdata (abfd)->verref; | |
1858 | t != NULL; | |
1859 | t = t->vn_nextref) | |
1860 | { | |
1861 | Elf_Internal_Vernaux *a; | |
1862 | ||
1863 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1864 | { | |
1865 | if (a->vna_other == vernum) | |
1866 | { | |
1867 | version_string = a->vna_nodename; | |
1868 | break; | |
1869 | } | |
1870 | } | |
1871 | } | |
1872 | } | |
1873 | } | |
1874 | return version_string; | |
1875 | } | |
1876 | ||
252b5132 RH |
1877 | /* Display ELF-specific fields of a symbol. */ |
1878 | ||
1879 | void | |
217aa764 AM |
1880 | bfd_elf_print_symbol (bfd *abfd, |
1881 | void *filep, | |
1882 | asymbol *symbol, | |
1883 | bfd_print_symbol_type how) | |
252b5132 | 1884 | { |
a50b1753 | 1885 | FILE *file = (FILE *) filep; |
252b5132 RH |
1886 | switch (how) |
1887 | { | |
1888 | case bfd_print_symbol_name: | |
1889 | fprintf (file, "%s", symbol->name); | |
1890 | break; | |
1891 | case bfd_print_symbol_more: | |
1892 | fprintf (file, "elf "); | |
60b89a18 | 1893 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1894 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1895 | break; |
1896 | case bfd_print_symbol_all: | |
1897 | { | |
4e8a9624 AM |
1898 | const char *section_name; |
1899 | const char *name = NULL; | |
9c5bfbb7 | 1900 | const struct elf_backend_data *bed; |
7a13edea | 1901 | unsigned char st_other; |
dbb410c3 | 1902 | bfd_vma val; |
bb4d2ac2 L |
1903 | const char *version_string; |
1904 | bfd_boolean hidden; | |
c044fabd | 1905 | |
252b5132 | 1906 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1907 | |
1908 | bed = get_elf_backend_data (abfd); | |
1909 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1910 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1911 | |
1912 | if (name == NULL) | |
1913 | { | |
7ee38065 | 1914 | name = symbol->name; |
217aa764 | 1915 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1916 | } |
1917 | ||
252b5132 RH |
1918 | fprintf (file, " %s\t", section_name); |
1919 | /* Print the "other" value for a symbol. For common symbols, | |
1920 | we've already printed the size; now print the alignment. | |
1921 | For other symbols, we have no specified alignment, and | |
1922 | we've printed the address; now print the size. */ | |
dcf6c779 | 1923 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1924 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1925 | else | |
1926 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1927 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1928 | |
1929 | /* If we have version information, print it. */ | |
60bb06bc L |
1930 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1931 | symbol, | |
1932 | &hidden); | |
bb4d2ac2 | 1933 | if (version_string) |
252b5132 | 1934 | { |
bb4d2ac2 | 1935 | if (!hidden) |
252b5132 RH |
1936 | fprintf (file, " %-11s", version_string); |
1937 | else | |
1938 | { | |
1939 | int i; | |
1940 | ||
1941 | fprintf (file, " (%s)", version_string); | |
1942 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1943 | putc (' ', file); | |
1944 | } | |
1945 | } | |
1946 | ||
1947 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1948 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1949 | |
7a13edea NC |
1950 | switch (st_other) |
1951 | { | |
1952 | case 0: break; | |
1953 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1954 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1955 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1956 | default: | |
1957 | /* Some other non-defined flags are also present, so print | |
1958 | everything hex. */ | |
1959 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1960 | } | |
252b5132 | 1961 | |
587ff49e | 1962 | fprintf (file, " %s", name); |
252b5132 RH |
1963 | } |
1964 | break; | |
1965 | } | |
1966 | } | |
252b5132 RH |
1967 | \f |
1968 | /* ELF .o/exec file reading */ | |
1969 | ||
c044fabd | 1970 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1971 | |
b34976b6 | 1972 | bfd_boolean |
217aa764 | 1973 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1974 | { |
4fbb74a6 AM |
1975 | Elf_Internal_Shdr *hdr; |
1976 | Elf_Internal_Ehdr *ehdr; | |
1977 | const struct elf_backend_data *bed; | |
90937f86 | 1978 | const char *name; |
bf67003b NC |
1979 | bfd_boolean ret = TRUE; |
1980 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 1981 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 1982 | static unsigned int nesting = 0; |
252b5132 | 1983 | |
4fbb74a6 AM |
1984 | if (shindex >= elf_numsections (abfd)) |
1985 | return FALSE; | |
1986 | ||
bf67003b NC |
1987 | if (++ nesting > 3) |
1988 | { | |
1989 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
06614111 | 1990 | sections, with each the string indicies pointing to the next in the |
bf67003b NC |
1991 | loop. Detect this here, by refusing to load a section that we are |
1992 | already in the process of loading. We only trigger this test if | |
1993 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
1994 | can expect to recurse at least once. |
1995 | ||
1996 | FIXME: It would be better if this array was attached to the bfd, | |
1997 | rather than being held in a static pointer. */ | |
1998 | ||
1999 | if (sections_being_created_abfd != abfd) | |
2000 | sections_being_created = NULL; | |
bf67003b NC |
2001 | if (sections_being_created == NULL) |
2002 | { | |
2003 | /* FIXME: It would be more efficient to attach this array to the bfd somehow. */ | |
2004 | sections_being_created = (bfd_boolean *) | |
2005 | bfd_zalloc (abfd, elf_numsections (abfd) * sizeof (bfd_boolean)); | |
5a4b0ccc | 2006 | sections_being_created_abfd = abfd; |
bf67003b NC |
2007 | } |
2008 | if (sections_being_created [shindex]) | |
2009 | { | |
4eca0228 | 2010 | _bfd_error_handler |
bf67003b NC |
2011 | (_("%B: warning: loop in section dependencies detected"), abfd); |
2012 | return FALSE; | |
2013 | } | |
2014 | sections_being_created [shindex] = TRUE; | |
2015 | } | |
2016 | ||
4fbb74a6 AM |
2017 | hdr = elf_elfsections (abfd)[shindex]; |
2018 | ehdr = elf_elfheader (abfd); | |
2019 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2020 | hdr->sh_name); |
933d961a | 2021 | if (name == NULL) |
bf67003b | 2022 | goto fail; |
252b5132 | 2023 | |
4fbb74a6 | 2024 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2025 | switch (hdr->sh_type) |
2026 | { | |
2027 | case SHT_NULL: | |
2028 | /* Inactive section. Throw it away. */ | |
bf67003b | 2029 | goto success; |
252b5132 | 2030 | |
bf67003b NC |
2031 | case SHT_PROGBITS: /* Normal section with contents. */ |
2032 | case SHT_NOBITS: /* .bss section. */ | |
2033 | case SHT_HASH: /* .hash section. */ | |
2034 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2035 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2036 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2037 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2038 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2039 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2040 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2041 | goto success; | |
252b5132 | 2042 | |
797fc050 | 2043 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2044 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2045 | goto fail; |
2046 | ||
cfcac11d NC |
2047 | if (hdr->sh_link > elf_numsections (abfd)) |
2048 | { | |
caa83f8b | 2049 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2050 | field set to SHN_BEFORE or SHN_AFTER. */ |
2051 | switch (bfd_get_arch (abfd)) | |
2052 | { | |
caa83f8b | 2053 | case bfd_arch_i386: |
cfcac11d NC |
2054 | case bfd_arch_sparc: |
2055 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2056 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2057 | break; | |
2058 | /* Otherwise fall through. */ | |
2059 | default: | |
bf67003b | 2060 | goto fail; |
cfcac11d NC |
2061 | } |
2062 | } | |
2063 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2064 | goto fail; |
cfcac11d | 2065 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2066 | { |
2067 | Elf_Internal_Shdr *dynsymhdr; | |
2068 | ||
2069 | /* The shared libraries distributed with hpux11 have a bogus | |
2070 | sh_link field for the ".dynamic" section. Find the | |
2071 | string table for the ".dynsym" section instead. */ | |
2072 | if (elf_dynsymtab (abfd) != 0) | |
2073 | { | |
2074 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2075 | hdr->sh_link = dynsymhdr->sh_link; | |
2076 | } | |
2077 | else | |
2078 | { | |
2079 | unsigned int i, num_sec; | |
2080 | ||
2081 | num_sec = elf_numsections (abfd); | |
2082 | for (i = 1; i < num_sec; i++) | |
2083 | { | |
2084 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2085 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2086 | { | |
2087 | hdr->sh_link = dynsymhdr->sh_link; | |
2088 | break; | |
2089 | } | |
2090 | } | |
2091 | } | |
2092 | } | |
bf67003b | 2093 | goto success; |
797fc050 | 2094 | |
bf67003b | 2095 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2096 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2097 | goto success; |
252b5132 | 2098 | |
a50b2160 | 2099 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2100 | goto fail; |
2101 | ||
3337c1e5 | 2102 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2103 | { |
2104 | if (hdr->sh_size != 0) | |
bf67003b | 2105 | goto fail; |
eee3b786 AM |
2106 | /* Some assemblers erroneously set sh_info to one with a |
2107 | zero sh_size. ld sees this as a global symbol count | |
2108 | of (unsigned) -1. Fix it here. */ | |
2109 | hdr->sh_info = 0; | |
bf67003b | 2110 | goto success; |
eee3b786 | 2111 | } |
bf67003b | 2112 | |
16ad13ec NC |
2113 | /* PR 18854: A binary might contain more than one symbol table. |
2114 | Unusual, but possible. Warn, but continue. */ | |
2115 | if (elf_onesymtab (abfd) != 0) | |
2116 | { | |
4eca0228 | 2117 | _bfd_error_handler |
695344c0 | 2118 | /* xgettext:c-format */ |
63a5468a AM |
2119 | (_("%B: warning: multiple symbol tables detected" |
2120 | " - ignoring the table in section %u"), | |
16ad13ec NC |
2121 | abfd, shindex); |
2122 | goto success; | |
2123 | } | |
252b5132 | 2124 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2125 | elf_symtab_hdr (abfd) = *hdr; |
2126 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2127 | abfd->flags |= HAS_SYMS; |
2128 | ||
2129 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2130 | SHF_ALLOC is set, and this is a shared object, then we also |
2131 | treat this section as a BFD section. We can not base the | |
2132 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2133 | set in a relocatable object file, which would confuse the | |
2134 | linker. */ | |
252b5132 RH |
2135 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2136 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2137 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2138 | shindex)) | |
bf67003b | 2139 | goto fail; |
252b5132 | 2140 | |
1b3a8575 AM |
2141 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2142 | can't read symbols without that section loaded as well. It | |
2143 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2144 | { |
2145 | elf_section_list * entry; | |
2146 | unsigned int i, num_sec; | |
1b3a8575 | 2147 | |
6a40cf0c NC |
2148 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2149 | if (entry->hdr.sh_link == shindex) | |
2150 | goto success; | |
2151 | ||
2152 | num_sec = elf_numsections (abfd); | |
2153 | for (i = shindex + 1; i < num_sec; i++) | |
2154 | { | |
2155 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2156 | ||
2157 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2158 | && hdr2->sh_link == shindex) | |
2159 | break; | |
2160 | } | |
2161 | ||
2162 | if (i == num_sec) | |
2163 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2164 | { |
2165 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2166 | |
1b3a8575 AM |
2167 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2168 | && hdr2->sh_link == shindex) | |
2169 | break; | |
2170 | } | |
6a40cf0c NC |
2171 | |
2172 | if (i != shindex) | |
2173 | ret = bfd_section_from_shdr (abfd, i); | |
2174 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2175 | goto success; | |
2176 | } | |
252b5132 | 2177 | |
bf67003b | 2178 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2179 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2180 | goto success; |
252b5132 | 2181 | |
a50b2160 | 2182 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2183 | goto fail; |
2184 | ||
eee3b786 AM |
2185 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2186 | { | |
2187 | if (hdr->sh_size != 0) | |
bf67003b NC |
2188 | goto fail; |
2189 | ||
eee3b786 AM |
2190 | /* Some linkers erroneously set sh_info to one with a |
2191 | zero sh_size. ld sees this as a global symbol count | |
2192 | of (unsigned) -1. Fix it here. */ | |
2193 | hdr->sh_info = 0; | |
bf67003b | 2194 | goto success; |
eee3b786 | 2195 | } |
bf67003b | 2196 | |
16ad13ec NC |
2197 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2198 | Unusual, but possible. Warn, but continue. */ | |
2199 | if (elf_dynsymtab (abfd) != 0) | |
2200 | { | |
4eca0228 | 2201 | _bfd_error_handler |
695344c0 | 2202 | /* xgettext:c-format */ |
63a5468a AM |
2203 | (_("%B: warning: multiple dynamic symbol tables detected" |
2204 | " - ignoring the table in section %u"), | |
16ad13ec NC |
2205 | abfd, shindex); |
2206 | goto success; | |
2207 | } | |
252b5132 RH |
2208 | elf_dynsymtab (abfd) = shindex; |
2209 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2210 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2211 | abfd->flags |= HAS_SYMS; | |
2212 | ||
2213 | /* Besides being a symbol table, we also treat this as a regular | |
2214 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2215 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2216 | goto success; | |
252b5132 | 2217 | |
bf67003b | 2218 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2219 | { |
2220 | elf_section_list * entry; | |
9ad5cbcf | 2221 | |
6a40cf0c NC |
2222 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2223 | if (entry->ndx == shindex) | |
2224 | goto success; | |
07d6d2b8 | 2225 | |
6a40cf0c NC |
2226 | entry = bfd_alloc (abfd, sizeof * entry); |
2227 | if (entry == NULL) | |
2228 | goto fail; | |
2229 | entry->ndx = shindex; | |
2230 | entry->hdr = * hdr; | |
2231 | entry->next = elf_symtab_shndx_list (abfd); | |
2232 | elf_symtab_shndx_list (abfd) = entry; | |
2233 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2234 | goto success; | |
2235 | } | |
9ad5cbcf | 2236 | |
bf67003b | 2237 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2238 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2239 | goto success; |
2240 | ||
252b5132 RH |
2241 | if (ehdr->e_shstrndx == shindex) |
2242 | { | |
2243 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2244 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2245 | goto success; |
252b5132 | 2246 | } |
bf67003b | 2247 | |
1b3a8575 AM |
2248 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2249 | { | |
2250 | symtab_strtab: | |
2251 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2252 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2253 | goto success; |
1b3a8575 | 2254 | } |
bf67003b | 2255 | |
1b3a8575 AM |
2256 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2257 | { | |
2258 | dynsymtab_strtab: | |
2259 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2260 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2261 | elf_elfsections (abfd)[shindex] = hdr; | |
2262 | /* We also treat this as a regular section, so that objcopy | |
2263 | can handle it. */ | |
bf67003b NC |
2264 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2265 | shindex); | |
2266 | goto success; | |
1b3a8575 | 2267 | } |
252b5132 | 2268 | |
1b3a8575 AM |
2269 | /* If the string table isn't one of the above, then treat it as a |
2270 | regular section. We need to scan all the headers to be sure, | |
2271 | just in case this strtab section appeared before the above. */ | |
2272 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2273 | { | |
2274 | unsigned int i, num_sec; | |
252b5132 | 2275 | |
1b3a8575 AM |
2276 | num_sec = elf_numsections (abfd); |
2277 | for (i = 1; i < num_sec; i++) | |
2278 | { | |
2279 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2280 | if (hdr2->sh_link == shindex) | |
2281 | { | |
933d961a JJ |
2282 | /* Prevent endless recursion on broken objects. */ |
2283 | if (i == shindex) | |
bf67003b | 2284 | goto fail; |
1b3a8575 | 2285 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2286 | goto fail; |
1b3a8575 AM |
2287 | if (elf_onesymtab (abfd) == i) |
2288 | goto symtab_strtab; | |
2289 | if (elf_dynsymtab (abfd) == i) | |
2290 | goto dynsymtab_strtab; | |
2291 | } | |
2292 | } | |
2293 | } | |
bf67003b NC |
2294 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2295 | goto success; | |
252b5132 RH |
2296 | |
2297 | case SHT_REL: | |
2298 | case SHT_RELA: | |
2299 | /* *These* do a lot of work -- but build no sections! */ | |
2300 | { | |
2301 | asection *target_sect; | |
d4730f92 | 2302 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2303 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2304 | struct bfd_elf_section_data *esdt; |
252b5132 | 2305 | |
aa2ca951 JJ |
2306 | if (hdr->sh_entsize |
2307 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2308 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2309 | goto fail; |
a50b2160 | 2310 | |
03ae5f59 | 2311 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2312 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2313 | { |
4eca0228 | 2314 | _bfd_error_handler |
695344c0 | 2315 | /* xgettext:c-format */ |
76cfced5 | 2316 | (_("%B: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2317 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2318 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2319 | shindex); | |
2320 | goto success; | |
03ae5f59 ILT |
2321 | } |
2322 | ||
252b5132 RH |
2323 | /* For some incomprehensible reason Oracle distributes |
2324 | libraries for Solaris in which some of the objects have | |
2325 | bogus sh_link fields. It would be nice if we could just | |
2326 | reject them, but, unfortunately, some people need to use | |
2327 | them. We scan through the section headers; if we find only | |
2328 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2329 | to it. I hope this doesn't break anything. |
2330 | ||
2331 | Don't do it on executable nor shared library. */ | |
2332 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2333 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2334 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2335 | { | |
9ad5cbcf | 2336 | unsigned int scan; |
252b5132 RH |
2337 | int found; |
2338 | ||
2339 | found = 0; | |
9ad5cbcf | 2340 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2341 | { |
2342 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2343 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2344 | { | |
2345 | if (found != 0) | |
2346 | { | |
2347 | found = 0; | |
2348 | break; | |
2349 | } | |
2350 | found = scan; | |
2351 | } | |
2352 | } | |
2353 | if (found != 0) | |
2354 | hdr->sh_link = found; | |
2355 | } | |
2356 | ||
2357 | /* Get the symbol table. */ | |
1b3a8575 AM |
2358 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2359 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2360 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2361 | goto fail; |
252b5132 RH |
2362 | |
2363 | /* If this reloc section does not use the main symbol table we | |
2364 | don't treat it as a reloc section. BFD can't adequately | |
2365 | represent such a section, so at least for now, we don't | |
c044fabd | 2366 | try. We just present it as a normal section. We also |
60bcf0fa | 2367 | can't use it as a reloc section if it points to the null |
83b89087 L |
2368 | section, an invalid section, another reloc section, or its |
2369 | sh_link points to the null section. */ | |
185ef66d | 2370 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 2371 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 2372 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2373 | || hdr->sh_info >= num_sec |
2374 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2375 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2376 | { |
2377 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2378 | shindex); | |
2379 | goto success; | |
2380 | } | |
252b5132 RH |
2381 | |
2382 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2383 | goto fail; |
2384 | ||
252b5132 RH |
2385 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2386 | if (target_sect == NULL) | |
bf67003b | 2387 | goto fail; |
252b5132 | 2388 | |
d4730f92 BS |
2389 | esdt = elf_section_data (target_sect); |
2390 | if (hdr->sh_type == SHT_RELA) | |
2391 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2392 | else |
d4730f92 BS |
2393 | p_hdr = &esdt->rel.hdr; |
2394 | ||
06614111 NC |
2395 | /* PR 17512: file: 0b4f81b7. */ |
2396 | if (*p_hdr != NULL) | |
2397 | goto fail; | |
ef53be89 | 2398 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2399 | if (hdr2 == NULL) |
bf67003b | 2400 | goto fail; |
252b5132 | 2401 | *hdr2 = *hdr; |
d4730f92 | 2402 | *p_hdr = hdr2; |
252b5132 | 2403 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2404 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2405 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2406 | target_sect->flags |= SEC_RELOC; |
2407 | target_sect->relocation = NULL; | |
2408 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2409 | /* In the section to which the relocations apply, mark whether |
2410 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2411 | if (hdr->sh_size != 0) |
d4730f92 BS |
2412 | { |
2413 | if (hdr->sh_type == SHT_RELA) | |
2414 | target_sect->use_rela_p = 1; | |
2415 | } | |
252b5132 | 2416 | abfd->flags |= HAS_RELOC; |
bf67003b | 2417 | goto success; |
252b5132 | 2418 | } |
252b5132 RH |
2419 | |
2420 | case SHT_GNU_verdef: | |
2421 | elf_dynverdef (abfd) = shindex; | |
2422 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2423 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2424 | goto success; | |
252b5132 RH |
2425 | |
2426 | case SHT_GNU_versym: | |
a50b2160 | 2427 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2428 | goto fail; |
2429 | ||
252b5132 RH |
2430 | elf_dynversym (abfd) = shindex; |
2431 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2432 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2433 | goto success; | |
252b5132 RH |
2434 | |
2435 | case SHT_GNU_verneed: | |
2436 | elf_dynverref (abfd) = shindex; | |
2437 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2438 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2439 | goto success; | |
252b5132 RH |
2440 | |
2441 | case SHT_SHLIB: | |
bf67003b | 2442 | goto success; |
252b5132 | 2443 | |
dbb410c3 | 2444 | case SHT_GROUP: |
44534af3 | 2445 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2446 | goto fail; |
2447 | ||
6dc132d9 | 2448 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2449 | goto fail; |
2450 | ||
bf67003b | 2451 | goto success; |
dbb410c3 | 2452 | |
252b5132 | 2453 | default: |
104d59d1 JM |
2454 | /* Possibly an attributes section. */ |
2455 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2456 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2457 | { | |
2458 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2459 | goto fail; |
104d59d1 | 2460 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2461 | goto success; |
104d59d1 JM |
2462 | } |
2463 | ||
252b5132 | 2464 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2465 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2466 | goto success; |
3eb70a79 L |
2467 | |
2468 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2469 | { | |
2470 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2471 | /* FIXME: How to properly handle allocated section reserved | |
2472 | for applications? */ | |
4eca0228 | 2473 | _bfd_error_handler |
695344c0 | 2474 | /* xgettext:c-format */ |
76cfced5 AM |
2475 | (_("%B: unknown type [%#x] section `%s'"), |
2476 | abfd, hdr->sh_type, name); | |
3eb70a79 | 2477 | else |
bf67003b NC |
2478 | { |
2479 | /* Allow sections reserved for applications. */ | |
2480 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2481 | shindex); | |
2482 | goto success; | |
2483 | } | |
3eb70a79 L |
2484 | } |
2485 | else if (hdr->sh_type >= SHT_LOPROC | |
2486 | && hdr->sh_type <= SHT_HIPROC) | |
2487 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2488 | _bfd_error_handler |
695344c0 | 2489 | /* xgettext:c-format */ |
76cfced5 AM |
2490 | (_("%B: unknown type [%#x] section `%s'"), |
2491 | abfd, hdr->sh_type, name); | |
3eb70a79 | 2492 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2493 | { |
2494 | /* Unrecognised OS-specific sections. */ | |
2495 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2496 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2497 | required to correctly process the section and the file should |
ff15b240 | 2498 | be rejected with an error message. */ |
4eca0228 | 2499 | _bfd_error_handler |
695344c0 | 2500 | /* xgettext:c-format */ |
76cfced5 AM |
2501 | (_("%B: unknown type [%#x] section `%s'"), |
2502 | abfd, hdr->sh_type, name); | |
ff15b240 | 2503 | else |
bf67003b NC |
2504 | { |
2505 | /* Otherwise it should be processed. */ | |
2506 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2507 | goto success; | |
2508 | } | |
ff15b240 | 2509 | } |
3eb70a79 L |
2510 | else |
2511 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2512 | _bfd_error_handler |
695344c0 | 2513 | /* xgettext:c-format */ |
76cfced5 AM |
2514 | (_("%B: unknown type [%#x] section `%s'"), |
2515 | abfd, hdr->sh_type, name); | |
3eb70a79 | 2516 | |
bf67003b | 2517 | goto fail; |
252b5132 RH |
2518 | } |
2519 | ||
bf67003b NC |
2520 | fail: |
2521 | ret = FALSE; | |
2522 | success: | |
e5b470e2 | 2523 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2524 | sections_being_created [shindex] = FALSE; |
2525 | if (-- nesting == 0) | |
5a4b0ccc NC |
2526 | { |
2527 | sections_being_created = NULL; | |
2528 | sections_being_created_abfd = abfd; | |
2529 | } | |
bf67003b | 2530 | return ret; |
252b5132 RH |
2531 | } |
2532 | ||
87d72d41 | 2533 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2534 | |
87d72d41 AM |
2535 | Elf_Internal_Sym * |
2536 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2537 | bfd *abfd, | |
2538 | unsigned long r_symndx) | |
ec338859 | 2539 | { |
ec338859 AM |
2540 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2541 | ||
a5d1b3b5 AM |
2542 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2543 | { | |
2544 | Elf_Internal_Shdr *symtab_hdr; | |
2545 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2546 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2547 | |
a5d1b3b5 AM |
2548 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2549 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2550 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2551 | return NULL; |
9ad5cbcf | 2552 | |
a5d1b3b5 AM |
2553 | if (cache->abfd != abfd) |
2554 | { | |
2555 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2556 | cache->abfd = abfd; | |
2557 | } | |
2558 | cache->indx[ent] = r_symndx; | |
ec338859 | 2559 | } |
a5d1b3b5 | 2560 | |
87d72d41 | 2561 | return &cache->sym[ent]; |
ec338859 AM |
2562 | } |
2563 | ||
252b5132 RH |
2564 | /* Given an ELF section number, retrieve the corresponding BFD |
2565 | section. */ | |
2566 | ||
2567 | asection * | |
91d6fa6a | 2568 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2569 | { |
91d6fa6a | 2570 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2571 | return NULL; |
91d6fa6a | 2572 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2573 | } |
2574 | ||
b35d266b | 2575 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2576 | { |
0112cd26 | 2577 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2578 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2579 | }; |
2580 | ||
b35d266b | 2581 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2582 | { |
0112cd26 | 2583 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2584 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2585 | }; |
2586 | ||
b35d266b | 2587 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2588 | { |
07d6d2b8 AM |
2589 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2590 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2591 | /* There are more DWARF sections than these, but they needn't be added here |
2592 | unless you have to cope with broken compilers that don't emit section | |
2593 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2594 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2595 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2596 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2597 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2598 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2599 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2600 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2601 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2602 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2603 | }; |
2604 | ||
b35d266b | 2605 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2606 | { |
07d6d2b8 | 2607 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2608 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2609 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2610 | }; |
2611 | ||
b35d266b | 2612 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2613 | { |
0112cd26 | 2614 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2615 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2616 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2617 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2618 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2619 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2620 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2621 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2622 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2623 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2624 | }; |
2625 | ||
b35d266b | 2626 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2627 | { |
07d6d2b8 AM |
2628 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2629 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2630 | }; |
2631 | ||
b35d266b | 2632 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2633 | { |
07d6d2b8 | 2634 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2635 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2636 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2637 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2638 | }; |
2639 | ||
b35d266b | 2640 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2641 | { |
0112cd26 | 2642 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2643 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2644 | }; |
2645 | ||
b35d266b | 2646 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2647 | { |
0112cd26 | 2648 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2649 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2650 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2651 | }; |
2652 | ||
b35d266b | 2653 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2654 | { |
6f9dbcd4 | 2655 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2656 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2657 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2658 | }; |
2659 | ||
b35d266b | 2660 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2661 | { |
0112cd26 NC |
2662 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2663 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2664 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2665 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2666 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2667 | }; |
2668 | ||
b35d266b | 2669 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2670 | { |
0112cd26 NC |
2671 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2672 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2673 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2674 | /* See struct bfd_elf_special_section declaration for the semantics of |
2675 | this special case where .prefix_length != strlen (.prefix). */ | |
2676 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2677 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2678 | }; |
2679 | ||
b35d266b | 2680 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2681 | { |
07d6d2b8 AM |
2682 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2683 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2684 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2685 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2686 | }; |
2687 | ||
1b315056 CS |
2688 | static const struct bfd_elf_special_section special_sections_z[] = |
2689 | { | |
07d6d2b8 AM |
2690 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2691 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2692 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2693 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2694 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2695 | }; |
2696 | ||
e4c93b56 | 2697 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2698 | { |
7f4d3958 | 2699 | special_sections_b, /* 'b' */ |
98ece1b3 | 2700 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2701 | special_sections_d, /* 'd' */ |
2702 | NULL, /* 'e' */ | |
2703 | special_sections_f, /* 'f' */ | |
2704 | special_sections_g, /* 'g' */ | |
2705 | special_sections_h, /* 'h' */ | |
2706 | special_sections_i, /* 'i' */ | |
2707 | NULL, /* 'j' */ | |
2708 | NULL, /* 'k' */ | |
2709 | special_sections_l, /* 'l' */ | |
2710 | NULL, /* 'm' */ | |
2711 | special_sections_n, /* 'n' */ | |
2712 | NULL, /* 'o' */ | |
2713 | special_sections_p, /* 'p' */ | |
2714 | NULL, /* 'q' */ | |
2715 | special_sections_r, /* 'r' */ | |
2716 | special_sections_s, /* 's' */ | |
2717 | special_sections_t, /* 't' */ | |
1b315056 CS |
2718 | NULL, /* 'u' */ |
2719 | NULL, /* 'v' */ | |
2720 | NULL, /* 'w' */ | |
2721 | NULL, /* 'x' */ | |
2722 | NULL, /* 'y' */ | |
2723 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2724 | }; |
2725 | ||
551b43fd AM |
2726 | const struct bfd_elf_special_section * |
2727 | _bfd_elf_get_special_section (const char *name, | |
2728 | const struct bfd_elf_special_section *spec, | |
2729 | unsigned int rela) | |
2f89ff8d L |
2730 | { |
2731 | int i; | |
7f4d3958 | 2732 | int len; |
7f4d3958 | 2733 | |
551b43fd | 2734 | len = strlen (name); |
7f4d3958 | 2735 | |
551b43fd | 2736 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2737 | { |
2738 | int suffix_len; | |
551b43fd | 2739 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2740 | |
2741 | if (len < prefix_len) | |
2742 | continue; | |
551b43fd | 2743 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2744 | continue; |
2745 | ||
551b43fd | 2746 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2747 | if (suffix_len <= 0) |
2748 | { | |
2749 | if (name[prefix_len] != 0) | |
2750 | { | |
2751 | if (suffix_len == 0) | |
2752 | continue; | |
2753 | if (name[prefix_len] != '.' | |
2754 | && (suffix_len == -2 | |
551b43fd | 2755 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2756 | continue; |
2757 | } | |
2758 | } | |
2759 | else | |
2760 | { | |
2761 | if (len < prefix_len + suffix_len) | |
2762 | continue; | |
2763 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2764 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2765 | suffix_len) != 0) |
2766 | continue; | |
2767 | } | |
551b43fd | 2768 | return &spec[i]; |
7dcb9820 | 2769 | } |
2f89ff8d L |
2770 | |
2771 | return NULL; | |
2772 | } | |
2773 | ||
7dcb9820 | 2774 | const struct bfd_elf_special_section * |
29ef7005 | 2775 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2776 | { |
551b43fd AM |
2777 | int i; |
2778 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2779 | const struct elf_backend_data *bed; |
2f89ff8d L |
2780 | |
2781 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2782 | if (sec->name == NULL) |
2783 | return NULL; | |
2f89ff8d | 2784 | |
29ef7005 L |
2785 | bed = get_elf_backend_data (abfd); |
2786 | spec = bed->special_sections; | |
2787 | if (spec) | |
2788 | { | |
2789 | spec = _bfd_elf_get_special_section (sec->name, | |
2790 | bed->special_sections, | |
2791 | sec->use_rela_p); | |
2792 | if (spec != NULL) | |
2793 | return spec; | |
2794 | } | |
2795 | ||
551b43fd AM |
2796 | if (sec->name[0] != '.') |
2797 | return NULL; | |
2f89ff8d | 2798 | |
551b43fd | 2799 | i = sec->name[1] - 'b'; |
1b315056 | 2800 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2801 | return NULL; |
2802 | ||
2803 | spec = special_sections[i]; | |
2f89ff8d | 2804 | |
551b43fd AM |
2805 | if (spec == NULL) |
2806 | return NULL; | |
2807 | ||
2808 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2809 | } |
2810 | ||
b34976b6 | 2811 | bfd_boolean |
217aa764 | 2812 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2813 | { |
2814 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2815 | const struct elf_backend_data *bed; |
7dcb9820 | 2816 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2817 | |
f0abc2a1 AM |
2818 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2819 | if (sdata == NULL) | |
2820 | { | |
a50b1753 | 2821 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2822 | sizeof (*sdata)); |
f0abc2a1 AM |
2823 | if (sdata == NULL) |
2824 | return FALSE; | |
217aa764 | 2825 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2826 | } |
bf572ba0 | 2827 | |
551b43fd AM |
2828 | /* Indicate whether or not this section should use RELA relocations. */ |
2829 | bed = get_elf_backend_data (abfd); | |
2830 | sec->use_rela_p = bed->default_use_rela_p; | |
2831 | ||
e843e0f8 L |
2832 | /* When we read a file, we don't need to set ELF section type and |
2833 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2834 | anyway. We will set ELF section type and flags for all linker | |
2835 | created sections. If user specifies BFD section flags, we will | |
2836 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2837 | elf_fake_sections. Special handling for .init_array/.fini_array |
2838 | output sections since they may contain .ctors/.dtors input | |
2839 | sections. We don't want _bfd_elf_init_private_section_data to | |
2840 | copy ELF section type from .ctors/.dtors input sections. */ | |
2841 | if (abfd->direction != read_direction | |
3496cb2a | 2842 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2843 | { |
551b43fd | 2844 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2845 | if (ssect != NULL |
2846 | && (!sec->flags | |
2847 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2848 | || ssect->type == SHT_INIT_ARRAY | |
2849 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2850 | { |
2851 | elf_section_type (sec) = ssect->type; | |
2852 | elf_section_flags (sec) = ssect->attr; | |
2853 | } | |
2f89ff8d L |
2854 | } |
2855 | ||
f592407e | 2856 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2857 | } |
2858 | ||
2859 | /* Create a new bfd section from an ELF program header. | |
2860 | ||
2861 | Since program segments have no names, we generate a synthetic name | |
2862 | of the form segment<NUM>, where NUM is generally the index in the | |
2863 | program header table. For segments that are split (see below) we | |
2864 | generate the names segment<NUM>a and segment<NUM>b. | |
2865 | ||
2866 | Note that some program segments may have a file size that is different than | |
2867 | (less than) the memory size. All this means is that at execution the | |
2868 | system must allocate the amount of memory specified by the memory size, | |
2869 | but only initialize it with the first "file size" bytes read from the | |
2870 | file. This would occur for example, with program segments consisting | |
2871 | of combined data+bss. | |
2872 | ||
2873 | To handle the above situation, this routine generates TWO bfd sections | |
2874 | for the single program segment. The first has the length specified by | |
2875 | the file size of the segment, and the second has the length specified | |
2876 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2877 | into its initialized and uninitialized parts. |
252b5132 RH |
2878 | |
2879 | */ | |
2880 | ||
b34976b6 | 2881 | bfd_boolean |
217aa764 AM |
2882 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2883 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2884 | int hdr_index, |
a50b1753 | 2885 | const char *type_name) |
252b5132 RH |
2886 | { |
2887 | asection *newsect; | |
2888 | char *name; | |
2889 | char namebuf[64]; | |
d4c88bbb | 2890 | size_t len; |
252b5132 RH |
2891 | int split; |
2892 | ||
2893 | split = ((hdr->p_memsz > 0) | |
2894 | && (hdr->p_filesz > 0) | |
2895 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2896 | |
2897 | if (hdr->p_filesz > 0) | |
252b5132 | 2898 | { |
91d6fa6a | 2899 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2900 | len = strlen (namebuf) + 1; |
a50b1753 | 2901 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2902 | if (!name) |
2903 | return FALSE; | |
2904 | memcpy (name, namebuf, len); | |
2905 | newsect = bfd_make_section (abfd, name); | |
2906 | if (newsect == NULL) | |
2907 | return FALSE; | |
2908 | newsect->vma = hdr->p_vaddr; | |
2909 | newsect->lma = hdr->p_paddr; | |
2910 | newsect->size = hdr->p_filesz; | |
2911 | newsect->filepos = hdr->p_offset; | |
2912 | newsect->flags |= SEC_HAS_CONTENTS; | |
2913 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2914 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2915 | { |
d5191d0c AM |
2916 | newsect->flags |= SEC_ALLOC; |
2917 | newsect->flags |= SEC_LOAD; | |
2918 | if (hdr->p_flags & PF_X) | |
2919 | { | |
2920 | /* FIXME: all we known is that it has execute PERMISSION, | |
2921 | may be data. */ | |
2922 | newsect->flags |= SEC_CODE; | |
2923 | } | |
2924 | } | |
2925 | if (!(hdr->p_flags & PF_W)) | |
2926 | { | |
2927 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2928 | } |
252b5132 RH |
2929 | } |
2930 | ||
d5191d0c | 2931 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2932 | { |
d5191d0c AM |
2933 | bfd_vma align; |
2934 | ||
91d6fa6a | 2935 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2936 | len = strlen (namebuf) + 1; |
a50b1753 | 2937 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2938 | if (!name) |
b34976b6 | 2939 | return FALSE; |
d4c88bbb | 2940 | memcpy (name, namebuf, len); |
252b5132 RH |
2941 | newsect = bfd_make_section (abfd, name); |
2942 | if (newsect == NULL) | |
b34976b6 | 2943 | return FALSE; |
252b5132 RH |
2944 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2945 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2946 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2947 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2948 | align = newsect->vma & -newsect->vma; | |
2949 | if (align == 0 || align > hdr->p_align) | |
2950 | align = hdr->p_align; | |
2951 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2952 | if (hdr->p_type == PT_LOAD) |
2953 | { | |
d5191d0c AM |
2954 | /* Hack for gdb. Segments that have not been modified do |
2955 | not have their contents written to a core file, on the | |
2956 | assumption that a debugger can find the contents in the | |
2957 | executable. We flag this case by setting the fake | |
2958 | section size to zero. Note that "real" bss sections will | |
2959 | always have their contents dumped to the core file. */ | |
2960 | if (bfd_get_format (abfd) == bfd_core) | |
2961 | newsect->size = 0; | |
252b5132 RH |
2962 | newsect->flags |= SEC_ALLOC; |
2963 | if (hdr->p_flags & PF_X) | |
2964 | newsect->flags |= SEC_CODE; | |
2965 | } | |
2966 | if (!(hdr->p_flags & PF_W)) | |
2967 | newsect->flags |= SEC_READONLY; | |
2968 | } | |
2969 | ||
b34976b6 | 2970 | return TRUE; |
252b5132 RH |
2971 | } |
2972 | ||
b34976b6 | 2973 | bfd_boolean |
91d6fa6a | 2974 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2975 | { |
9c5bfbb7 | 2976 | const struct elf_backend_data *bed; |
20cfcaae NC |
2977 | |
2978 | switch (hdr->p_type) | |
2979 | { | |
2980 | case PT_NULL: | |
91d6fa6a | 2981 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2982 | |
2983 | case PT_LOAD: | |
91d6fa6a | 2984 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2985 | |
2986 | case PT_DYNAMIC: | |
91d6fa6a | 2987 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
2988 | |
2989 | case PT_INTERP: | |
91d6fa6a | 2990 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
2991 | |
2992 | case PT_NOTE: | |
91d6fa6a | 2993 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 2994 | return FALSE; |
276da9b3 L |
2995 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
2996 | hdr->p_align)) | |
b34976b6 AM |
2997 | return FALSE; |
2998 | return TRUE; | |
20cfcaae NC |
2999 | |
3000 | case PT_SHLIB: | |
91d6fa6a | 3001 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3002 | |
3003 | case PT_PHDR: | |
91d6fa6a | 3004 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3005 | |
811072d8 | 3006 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3007 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3008 | "eh_frame_hdr"); |
3009 | ||
2b05f1b7 | 3010 | case PT_GNU_STACK: |
91d6fa6a | 3011 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3012 | |
8c37241b | 3013 | case PT_GNU_RELRO: |
91d6fa6a | 3014 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3015 | |
20cfcaae | 3016 | default: |
8c1acd09 | 3017 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3018 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3019 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3020 | } |
3021 | } | |
3022 | ||
d4730f92 BS |
3023 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3024 | REL or RELA. */ | |
3025 | ||
3026 | Elf_Internal_Shdr * | |
3027 | _bfd_elf_single_rel_hdr (asection *sec) | |
3028 | { | |
3029 | if (elf_section_data (sec)->rel.hdr) | |
3030 | { | |
3031 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3032 | return elf_section_data (sec)->rel.hdr; | |
3033 | } | |
3034 | else | |
3035 | return elf_section_data (sec)->rela.hdr; | |
3036 | } | |
3037 | ||
3e19fb8f L |
3038 | static bfd_boolean |
3039 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3040 | Elf_Internal_Shdr *rel_hdr, | |
3041 | const char *sec_name, | |
3042 | bfd_boolean use_rela_p) | |
3043 | { | |
3044 | char *name = (char *) bfd_alloc (abfd, | |
3045 | sizeof ".rela" + strlen (sec_name)); | |
3046 | if (name == NULL) | |
3047 | return FALSE; | |
3048 | ||
3049 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3050 | rel_hdr->sh_name = | |
3051 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3052 | FALSE); | |
3053 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3054 | return FALSE; | |
3055 | ||
3056 | return TRUE; | |
3057 | } | |
3058 | ||
d4730f92 BS |
3059 | /* Allocate and initialize a section-header for a new reloc section, |
3060 | containing relocations against ASECT. It is stored in RELDATA. If | |
3061 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3062 | relocations. */ | |
23bc299b | 3063 | |
5d13b3b3 | 3064 | static bfd_boolean |
217aa764 | 3065 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3066 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3067 | const char *sec_name, |
3e19fb8f L |
3068 | bfd_boolean use_rela_p, |
3069 | bfd_boolean delay_st_name_p) | |
23bc299b | 3070 | { |
d4730f92 | 3071 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3072 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3073 | |
d4730f92 | 3074 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3075 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3076 | reldata->hdr = rel_hdr; |
23bc299b | 3077 | |
3e19fb8f L |
3078 | if (delay_st_name_p) |
3079 | rel_hdr->sh_name = (unsigned int) -1; | |
3080 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3081 | use_rela_p)) | |
b34976b6 | 3082 | return FALSE; |
23bc299b MM |
3083 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3084 | rel_hdr->sh_entsize = (use_rela_p | |
3085 | ? bed->s->sizeof_rela | |
3086 | : bed->s->sizeof_rel); | |
72de5009 | 3087 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3088 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3089 | rel_hdr->sh_addr = 0; |
3090 | rel_hdr->sh_size = 0; | |
3091 | rel_hdr->sh_offset = 0; | |
3092 | ||
b34976b6 | 3093 | return TRUE; |
23bc299b MM |
3094 | } |
3095 | ||
94be91de JB |
3096 | /* Return the default section type based on the passed in section flags. */ |
3097 | ||
3098 | int | |
3099 | bfd_elf_get_default_section_type (flagword flags) | |
3100 | { | |
3101 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 3102 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3103 | return SHT_NOBITS; |
3104 | return SHT_PROGBITS; | |
3105 | } | |
3106 | ||
d4730f92 BS |
3107 | struct fake_section_arg |
3108 | { | |
3109 | struct bfd_link_info *link_info; | |
3110 | bfd_boolean failed; | |
3111 | }; | |
3112 | ||
252b5132 RH |
3113 | /* Set up an ELF internal section header for a section. */ |
3114 | ||
252b5132 | 3115 | static void |
d4730f92 | 3116 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3117 | { |
d4730f92 | 3118 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3119 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3120 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3121 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3122 | unsigned int sh_type; |
0ce398f1 | 3123 | const char *name = asect->name; |
3e19fb8f | 3124 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3125 | |
d4730f92 | 3126 | if (arg->failed) |
252b5132 RH |
3127 | { |
3128 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3129 | loop. */ |
252b5132 RH |
3130 | return; |
3131 | } | |
3132 | ||
d4730f92 | 3133 | this_hdr = &esd->this_hdr; |
252b5132 | 3134 | |
f6fe1ccd | 3135 | if (arg->link_info) |
0ce398f1 | 3136 | { |
f6fe1ccd L |
3137 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3138 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3139 | && (asect->flags & SEC_DEBUGGING) | |
3140 | && name[1] == 'd' | |
3141 | && name[6] == '_') | |
3142 | { | |
3143 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3144 | compressed. */ | |
3145 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3146 | |
dd905818 | 3147 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3148 | name to section name section after it is compressed in |
3149 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3150 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3151 | } |
3152 | } | |
3153 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3154 | { | |
3155 | /* objcopy: rename output DWARF debug section. */ | |
3156 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3157 | { | |
3158 | /* When we decompress or compress with SHF_COMPRESSED, | |
3159 | convert section name from .zdebug_* to .debug_* if | |
3160 | needed. */ | |
3161 | if (name[1] == 'z') | |
3162 | { | |
3163 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3164 | if (new_name == NULL) | |
3165 | { | |
3166 | arg->failed = TRUE; | |
3167 | return; | |
3168 | } | |
3169 | name = new_name; | |
3170 | } | |
3171 | } | |
3172 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3173 | { |
f6fe1ccd L |
3174 | /* PR binutils/18087: Compression does not always make a |
3175 | section smaller. So only rename the section when | |
3176 | compression has actually taken place. If input section | |
3177 | name is .zdebug_*, we should never compress it again. */ | |
3178 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3179 | if (new_name == NULL) |
3180 | { | |
3181 | arg->failed = TRUE; | |
3182 | return; | |
3183 | } | |
f6fe1ccd L |
3184 | BFD_ASSERT (name[1] != 'z'); |
3185 | name = new_name; | |
0ce398f1 L |
3186 | } |
3187 | } | |
3188 | ||
3e19fb8f L |
3189 | if (delay_st_name_p) |
3190 | this_hdr->sh_name = (unsigned int) -1; | |
3191 | else | |
252b5132 | 3192 | { |
3e19fb8f L |
3193 | this_hdr->sh_name |
3194 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3195 | name, FALSE); | |
3196 | if (this_hdr->sh_name == (unsigned int) -1) | |
3197 | { | |
3198 | arg->failed = TRUE; | |
3199 | return; | |
3200 | } | |
252b5132 RH |
3201 | } |
3202 | ||
a4d8e49b | 3203 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3204 | |
3205 | if ((asect->flags & SEC_ALLOC) != 0 | |
3206 | || asect->user_set_vma) | |
3207 | this_hdr->sh_addr = asect->vma; | |
3208 | else | |
3209 | this_hdr->sh_addr = 0; | |
3210 | ||
3211 | this_hdr->sh_offset = 0; | |
eea6121a | 3212 | this_hdr->sh_size = asect->size; |
252b5132 | 3213 | this_hdr->sh_link = 0; |
c86934ce NC |
3214 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3215 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3216 | { | |
4eca0228 | 3217 | _bfd_error_handler |
695344c0 | 3218 | /* xgettext:c-format */ |
c86934ce | 3219 | (_("%B: error: Alignment power %d of section `%A' is too big"), |
c08bb8dd | 3220 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3221 | arg->failed = TRUE; |
3222 | return; | |
3223 | } | |
72de5009 | 3224 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3225 | /* The sh_entsize and sh_info fields may have been set already by |
3226 | copy_private_section_data. */ | |
3227 | ||
3228 | this_hdr->bfd_section = asect; | |
3229 | this_hdr->contents = NULL; | |
3230 | ||
3cddba1e L |
3231 | /* If the section type is unspecified, we set it based on |
3232 | asect->flags. */ | |
98ece1b3 AM |
3233 | if ((asect->flags & SEC_GROUP) != 0) |
3234 | sh_type = SHT_GROUP; | |
98ece1b3 | 3235 | else |
94be91de | 3236 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3237 | |
3cddba1e | 3238 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3239 | this_hdr->sh_type = sh_type; |
3240 | else if (this_hdr->sh_type == SHT_NOBITS | |
3241 | && sh_type == SHT_PROGBITS | |
3242 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3243 | { |
98ece1b3 AM |
3244 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3245 | allow the link to proceed. This can happen when users link | |
3246 | non-bss input sections to bss output sections, or emit data | |
3247 | to a bss output section via a linker script. */ | |
4eca0228 | 3248 | _bfd_error_handler |
58f0869b | 3249 | (_("warning: section `%A' type changed to PROGBITS"), asect); |
98ece1b3 | 3250 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3251 | } |
3252 | ||
2f89ff8d | 3253 | switch (this_hdr->sh_type) |
252b5132 | 3254 | { |
2f89ff8d | 3255 | default: |
2f89ff8d L |
3256 | break; |
3257 | ||
3258 | case SHT_STRTAB: | |
2f89ff8d L |
3259 | case SHT_NOTE: |
3260 | case SHT_NOBITS: | |
3261 | case SHT_PROGBITS: | |
3262 | break; | |
606851fb AM |
3263 | |
3264 | case SHT_INIT_ARRAY: | |
3265 | case SHT_FINI_ARRAY: | |
3266 | case SHT_PREINIT_ARRAY: | |
3267 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3268 | break; | |
2f89ff8d L |
3269 | |
3270 | case SHT_HASH: | |
c7ac6ff8 | 3271 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3272 | break; |
5de3bf90 | 3273 | |
2f89ff8d | 3274 | case SHT_DYNSYM: |
252b5132 | 3275 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3276 | break; |
3277 | ||
3278 | case SHT_DYNAMIC: | |
252b5132 | 3279 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3280 | break; |
3281 | ||
3282 | case SHT_RELA: | |
3283 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3284 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3285 | break; | |
3286 | ||
3287 | case SHT_REL: | |
3288 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3289 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3290 | break; | |
3291 | ||
3292 | case SHT_GNU_versym: | |
252b5132 | 3293 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3294 | break; |
3295 | ||
3296 | case SHT_GNU_verdef: | |
252b5132 RH |
3297 | this_hdr->sh_entsize = 0; |
3298 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3299 | cverdefs. The linker will set cverdefs, but sh_info will be |
3300 | zero. */ | |
252b5132 RH |
3301 | if (this_hdr->sh_info == 0) |
3302 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3303 | else | |
3304 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3305 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3306 | break; |
3307 | ||
3308 | case SHT_GNU_verneed: | |
252b5132 RH |
3309 | this_hdr->sh_entsize = 0; |
3310 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3311 | cverrefs. The linker will set cverrefs, but sh_info will be |
3312 | zero. */ | |
252b5132 RH |
3313 | if (this_hdr->sh_info == 0) |
3314 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3315 | else | |
3316 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3317 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3318 | break; |
3319 | ||
3320 | case SHT_GROUP: | |
1783205a | 3321 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3322 | break; |
fdc90cb4 JJ |
3323 | |
3324 | case SHT_GNU_HASH: | |
3325 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3326 | break; | |
dbb410c3 | 3327 | } |
252b5132 RH |
3328 | |
3329 | if ((asect->flags & SEC_ALLOC) != 0) | |
3330 | this_hdr->sh_flags |= SHF_ALLOC; | |
3331 | if ((asect->flags & SEC_READONLY) == 0) | |
3332 | this_hdr->sh_flags |= SHF_WRITE; | |
3333 | if ((asect->flags & SEC_CODE) != 0) | |
3334 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3335 | if ((asect->flags & SEC_MERGE) != 0) |
3336 | { | |
3337 | this_hdr->sh_flags |= SHF_MERGE; | |
3338 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3339 | } |
84865015 NC |
3340 | if ((asect->flags & SEC_STRINGS) != 0) |
3341 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3342 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3343 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3344 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3345 | { |
3346 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3347 | if (asect->size == 0 |
3348 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3349 | { |
3a800eb9 | 3350 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3351 | |
704afa60 | 3352 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3353 | if (o != NULL) |
3354 | { | |
704afa60 | 3355 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3356 | if (this_hdr->sh_size != 0) |
3357 | this_hdr->sh_type = SHT_NOBITS; | |
3358 | } | |
704afa60 JJ |
3359 | } |
3360 | } | |
18ae9cc1 L |
3361 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3362 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3363 | |
d4730f92 BS |
3364 | /* If the section has relocs, set up a section header for the |
3365 | SHT_REL[A] section. If two relocation sections are required for | |
3366 | this section, it is up to the processor-specific back-end to | |
3367 | create the other. */ | |
3368 | if ((asect->flags & SEC_RELOC) != 0) | |
3369 | { | |
3370 | /* When doing a relocatable link, create both REL and RELA sections if | |
3371 | needed. */ | |
3372 | if (arg->link_info | |
3373 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3374 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3375 | && (bfd_link_relocatable (arg->link_info) |
3376 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3377 | { |
3378 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3379 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3380 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3381 | { |
3382 | arg->failed = TRUE; | |
3383 | return; | |
3384 | } | |
3385 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3386 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3387 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3388 | { |
3389 | arg->failed = TRUE; | |
3390 | return; | |
3391 | } | |
3392 | } | |
3393 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3394 | (asect->use_rela_p | |
3395 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3396 | name, |
3e19fb8f L |
3397 | asect->use_rela_p, |
3398 | delay_st_name_p)) | |
db4677b8 | 3399 | { |
d4730f92 | 3400 | arg->failed = TRUE; |
db4677b8 AM |
3401 | return; |
3402 | } | |
d4730f92 BS |
3403 | } |
3404 | ||
252b5132 | 3405 | /* Check for processor-specific section types. */ |
0414f35b | 3406 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3407 | if (bed->elf_backend_fake_sections |
3408 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3409 | { |
3410 | arg->failed = TRUE; | |
3411 | return; | |
3412 | } | |
252b5132 | 3413 | |
42bb2e33 | 3414 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3415 | { |
3416 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3417 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3418 | this_hdr->sh_type = sh_type; |
3419 | } | |
252b5132 RH |
3420 | } |
3421 | ||
bcacc0f5 AM |
3422 | /* Fill in the contents of a SHT_GROUP section. Called from |
3423 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3424 | when ELF targets use the generic linker, ld. Called for ld -r | |
3425 | from bfd_elf_final_link. */ | |
dbb410c3 | 3426 | |
1126897b | 3427 | void |
217aa764 | 3428 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3429 | { |
a50b1753 | 3430 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3431 | asection *elt, *first; |
dbb410c3 | 3432 | unsigned char *loc; |
b34976b6 | 3433 | bfd_boolean gas; |
dbb410c3 | 3434 | |
7e4111ad L |
3435 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3436 | elfxx-ia64.c. */ | |
3437 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
3438 | || *failedptr) |
3439 | return; | |
3440 | ||
bcacc0f5 AM |
3441 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3442 | { | |
3443 | unsigned long symindx = 0; | |
3444 | ||
3445 | /* elf_group_id will have been set up by objcopy and the | |
3446 | generic linker. */ | |
3447 | if (elf_group_id (sec) != NULL) | |
3448 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3449 | |
bcacc0f5 AM |
3450 | if (symindx == 0) |
3451 | { | |
3452 | /* If called from the assembler, swap_out_syms will have set up | |
3453 | elf_section_syms. */ | |
3454 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3455 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3456 | } | |
3457 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3458 | } | |
3459 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3460 | { |
bcacc0f5 AM |
3461 | /* The ELF backend linker sets sh_info to -2 when the group |
3462 | signature symbol is global, and thus the index can't be | |
3463 | set until all local symbols are output. */ | |
53720c49 AM |
3464 | asection *igroup; |
3465 | struct bfd_elf_section_data *sec_data; | |
3466 | unsigned long symndx; | |
3467 | unsigned long extsymoff; | |
bcacc0f5 AM |
3468 | struct elf_link_hash_entry *h; |
3469 | ||
53720c49 AM |
3470 | /* The point of this little dance to the first SHF_GROUP section |
3471 | then back to the SHT_GROUP section is that this gets us to | |
3472 | the SHT_GROUP in the input object. */ | |
3473 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3474 | sec_data = elf_section_data (igroup); | |
3475 | symndx = sec_data->this_hdr.sh_info; | |
3476 | extsymoff = 0; | |
bcacc0f5 AM |
3477 | if (!elf_bad_symtab (igroup->owner)) |
3478 | { | |
3479 | Elf_Internal_Shdr *symtab_hdr; | |
3480 | ||
3481 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3482 | extsymoff = symtab_hdr->sh_info; | |
3483 | } | |
3484 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3485 | while (h->root.type == bfd_link_hash_indirect | |
3486 | || h->root.type == bfd_link_hash_warning) | |
3487 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3488 | ||
3489 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3490 | } |
dbb410c3 | 3491 | |
1126897b | 3492 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3493 | gas = TRUE; |
dbb410c3 AM |
3494 | if (sec->contents == NULL) |
3495 | { | |
b34976b6 | 3496 | gas = FALSE; |
a50b1753 | 3497 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3498 | |
3499 | /* Arrange for the section to be written out. */ | |
3500 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3501 | if (sec->contents == NULL) |
3502 | { | |
b34976b6 | 3503 | *failedptr = TRUE; |
dbb410c3 AM |
3504 | return; |
3505 | } | |
3506 | } | |
3507 | ||
eea6121a | 3508 | loc = sec->contents + sec->size; |
dbb410c3 | 3509 | |
9dce4196 AM |
3510 | /* Get the pointer to the first section in the group that gas |
3511 | squirreled away here. objcopy arranges for this to be set to the | |
3512 | start of the input section group. */ | |
3513 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3514 | |
3515 | /* First element is a flag word. Rest of section is elf section | |
3516 | indices for all the sections of the group. Write them backwards | |
3517 | just to keep the group in the same order as given in .section | |
3518 | directives, not that it matters. */ | |
3519 | while (elt != NULL) | |
3520 | { | |
9dce4196 | 3521 | asection *s; |
9dce4196 | 3522 | |
9dce4196 | 3523 | s = elt; |
415f38a6 AM |
3524 | if (!gas) |
3525 | s = s->output_section; | |
3526 | if (s != NULL | |
3527 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3528 | { |
db4677b8 | 3529 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3530 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3531 | ||
3532 | if (elf_sec->rel.hdr != NULL | |
3533 | && (gas | |
3534 | || (input_elf_sec->rel.hdr != NULL | |
3535 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3536 | { |
28e07a05 | 3537 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3538 | loc -= 4; |
3539 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3540 | } | |
28e07a05 AM |
3541 | if (elf_sec->rela.hdr != NULL |
3542 | && (gas | |
3543 | || (input_elf_sec->rela.hdr != NULL | |
3544 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3545 | { |
28e07a05 | 3546 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3547 | loc -= 4; |
3548 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3549 | } | |
01e1a5bc | 3550 | loc -= 4; |
db4677b8 | 3551 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3552 | } |
945906ff | 3553 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3554 | if (elt == first) |
3555 | break; | |
dbb410c3 AM |
3556 | } |
3557 | ||
7bdf4127 AB |
3558 | loc -= 4; |
3559 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3560 | |
9dce4196 | 3561 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3562 | } |
3563 | ||
bce964aa AM |
3564 | /* Given NAME, the name of a relocation section stripped of its |
3565 | .rel/.rela prefix, return the section in ABFD to which the | |
3566 | relocations apply. */ | |
bd53a53a L |
3567 | |
3568 | asection * | |
bce964aa AM |
3569 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3570 | { | |
3571 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3572 | section likely apply to .got.plt or .got section. */ | |
3573 | if (get_elf_backend_data (abfd)->want_got_plt | |
3574 | && strcmp (name, ".plt") == 0) | |
3575 | { | |
3576 | asection *sec; | |
3577 | ||
3578 | name = ".got.plt"; | |
3579 | sec = bfd_get_section_by_name (abfd, name); | |
3580 | if (sec != NULL) | |
3581 | return sec; | |
3582 | name = ".got"; | |
3583 | } | |
3584 | ||
3585 | return bfd_get_section_by_name (abfd, name); | |
3586 | } | |
3587 | ||
3588 | /* Return the section to which RELOC_SEC applies. */ | |
3589 | ||
3590 | static asection * | |
3591 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3592 | { |
3593 | const char *name; | |
3594 | unsigned int type; | |
3595 | bfd *abfd; | |
bce964aa | 3596 | const struct elf_backend_data *bed; |
bd53a53a L |
3597 | |
3598 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3599 | if (type != SHT_REL && type != SHT_RELA) | |
3600 | return NULL; | |
3601 | ||
3602 | /* We look up the section the relocs apply to by name. */ | |
3603 | name = reloc_sec->name; | |
bce964aa AM |
3604 | if (strncmp (name, ".rel", 4) != 0) |
3605 | return NULL; | |
3606 | name += 4; | |
3607 | if (type == SHT_RELA && *name++ != 'a') | |
3608 | return NULL; | |
bd53a53a | 3609 | |
bd53a53a | 3610 | abfd = reloc_sec->owner; |
bce964aa AM |
3611 | bed = get_elf_backend_data (abfd); |
3612 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3613 | } |
3614 | ||
252b5132 RH |
3615 | /* Assign all ELF section numbers. The dummy first section is handled here |
3616 | too. The link/info pointers for the standard section types are filled | |
3617 | in here too, while we're at it. */ | |
3618 | ||
b34976b6 | 3619 | static bfd_boolean |
da9f89d4 | 3620 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3621 | { |
3622 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3623 | asection *sec; | |
3e19fb8f | 3624 | unsigned int section_number; |
252b5132 | 3625 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3626 | struct bfd_elf_section_data *d; |
3516e984 | 3627 | bfd_boolean need_symtab; |
252b5132 RH |
3628 | |
3629 | section_number = 1; | |
3630 | ||
2b0f7ef9 JJ |
3631 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3632 | ||
da9f89d4 | 3633 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3634 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3635 | { |
ef53be89 | 3636 | size_t reloc_count = 0; |
14f2c699 | 3637 | |
da9f89d4 | 3638 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3639 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3640 | { |
5daa8fe7 | 3641 | d = elf_section_data (sec); |
da9f89d4 L |
3642 | |
3643 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3644 | { |
5daa8fe7 | 3645 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3646 | { |
3647 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3648 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3649 | abfd->section_count--; |
da9f89d4 | 3650 | } |
08a40648 | 3651 | else |
4fbb74a6 | 3652 | d->this_idx = section_number++; |
da9f89d4 | 3653 | } |
14f2c699 L |
3654 | |
3655 | /* Count relocations. */ | |
3656 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3657 | } |
14f2c699 L |
3658 | |
3659 | /* Clear HAS_RELOC if there are no relocations. */ | |
3660 | if (reloc_count == 0) | |
3661 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3662 | } |
3663 | ||
3664 | for (sec = abfd->sections; sec; sec = sec->next) | |
3665 | { | |
3666 | d = elf_section_data (sec); | |
3667 | ||
3668 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3669 | d->this_idx = section_number++; |
3e19fb8f L |
3670 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3671 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3672 | if (d->rel.hdr) |
2b0f7ef9 | 3673 | { |
d4730f92 | 3674 | d->rel.idx = section_number++; |
3e19fb8f L |
3675 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3676 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3677 | } |
d4730f92 BS |
3678 | else |
3679 | d->rel.idx = 0; | |
23bc299b | 3680 | |
d4730f92 | 3681 | if (d->rela.hdr) |
2b0f7ef9 | 3682 | { |
d4730f92 | 3683 | d->rela.idx = section_number++; |
3e19fb8f L |
3684 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3685 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3686 | } |
23bc299b | 3687 | else |
d4730f92 | 3688 | d->rela.idx = 0; |
252b5132 RH |
3689 | } |
3690 | ||
3516e984 L |
3691 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3692 | || (link_info == NULL | |
3693 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3694 | == HAS_RELOC))); | |
3695 | if (need_symtab) | |
252b5132 | 3696 | { |
12bd6957 | 3697 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3698 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3699 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3700 | { |
6a40cf0c NC |
3701 | elf_section_list * entry; |
3702 | ||
3703 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3704 | ||
3705 | entry = bfd_zalloc (abfd, sizeof * entry); | |
3706 | entry->ndx = section_number++; | |
3707 | elf_symtab_shndx_list (abfd) = entry; | |
3708 | entry->hdr.sh_name | |
9ad5cbcf | 3709 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3710 | ".symtab_shndx", FALSE); |
6a40cf0c | 3711 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3712 | return FALSE; |
9ad5cbcf | 3713 | } |
12bd6957 | 3714 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3715 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3716 | } |
3717 | ||
dd905818 NC |
3718 | elf_shstrtab_sec (abfd) = section_number++; |
3719 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3720 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3721 | ||
1c52a645 L |
3722 | if (section_number >= SHN_LORESERVE) |
3723 | { | |
695344c0 | 3724 | /* xgettext:c-format */ |
1c52a645 L |
3725 | _bfd_error_handler (_("%B: too many sections: %u"), |
3726 | abfd, section_number); | |
3727 | return FALSE; | |
3728 | } | |
3729 | ||
9ad5cbcf | 3730 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3731 | elf_elfheader (abfd)->e_shnum = section_number; |
3732 | ||
3733 | /* Set up the list of section header pointers, in agreement with the | |
3734 | indices. */ | |
a50b1753 | 3735 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3736 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3737 | if (i_shdrp == NULL) |
b34976b6 | 3738 | return FALSE; |
252b5132 | 3739 | |
a50b1753 | 3740 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3741 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3742 | if (i_shdrp[0] == NULL) |
3743 | { | |
3744 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3745 | return FALSE; |
252b5132 | 3746 | } |
252b5132 RH |
3747 | |
3748 | elf_elfsections (abfd) = i_shdrp; | |
3749 | ||
12bd6957 | 3750 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3751 | if (need_symtab) |
252b5132 | 3752 | { |
12bd6957 | 3753 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3754 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3755 | { |
6a40cf0c NC |
3756 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3757 | BFD_ASSERT (entry != NULL); | |
3758 | i_shdrp[entry->ndx] = & entry->hdr; | |
3759 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3760 | } |
12bd6957 AM |
3761 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3762 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3763 | } |
38ce5b11 | 3764 | |
252b5132 RH |
3765 | for (sec = abfd->sections; sec; sec = sec->next) |
3766 | { | |
252b5132 | 3767 | asection *s; |
252b5132 | 3768 | |
91d6fa6a NC |
3769 | d = elf_section_data (sec); |
3770 | ||
252b5132 | 3771 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3772 | if (d->rel.idx != 0) |
3773 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3774 | if (d->rela.idx != 0) | |
3775 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3776 | |
3777 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3778 | ||
3779 | /* sh_link of a reloc section is the section index of the symbol | |
3780 | table. sh_info is the section index of the section to which | |
3781 | the relocation entries apply. */ | |
d4730f92 | 3782 | if (d->rel.idx != 0) |
252b5132 | 3783 | { |
12bd6957 | 3784 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3785 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3786 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3787 | } |
d4730f92 | 3788 | if (d->rela.idx != 0) |
23bc299b | 3789 | { |
12bd6957 | 3790 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3791 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3792 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3793 | } |
252b5132 | 3794 | |
38ce5b11 L |
3795 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3796 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3797 | { | |
3798 | s = elf_linked_to_section (sec); | |
3799 | if (s) | |
38ce5b11 | 3800 | { |
f2876037 | 3801 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3802 | if (link_info != NULL) |
38ce5b11 | 3803 | { |
f2876037 | 3804 | /* Check discarded linkonce section. */ |
dbaa2011 | 3805 | if (discarded_section (s)) |
38ce5b11 | 3806 | { |
ccd2ec6a | 3807 | asection *kept; |
4eca0228 | 3808 | _bfd_error_handler |
695344c0 | 3809 | /* xgettext:c-format */ |
63a5468a AM |
3810 | (_("%B: sh_link of section `%A' points to" |
3811 | " discarded section `%A' of `%B'"), | |
ccd2ec6a L |
3812 | abfd, d->this_hdr.bfd_section, |
3813 | s, s->owner); | |
3814 | /* Point to the kept section if it has the same | |
3815 | size as the discarded one. */ | |
c0f00686 | 3816 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3817 | if (kept == NULL) |
185d09ad | 3818 | { |
ccd2ec6a L |
3819 | bfd_set_error (bfd_error_bad_value); |
3820 | return FALSE; | |
185d09ad | 3821 | } |
ccd2ec6a | 3822 | s = kept; |
38ce5b11 | 3823 | } |
e424ecc8 | 3824 | |
ccd2ec6a L |
3825 | s = s->output_section; |
3826 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3827 | } |
f2876037 L |
3828 | else |
3829 | { | |
3830 | /* Handle objcopy. */ | |
3831 | if (s->output_section == NULL) | |
3832 | { | |
4eca0228 | 3833 | _bfd_error_handler |
695344c0 | 3834 | /* xgettext:c-format */ |
63a5468a AM |
3835 | (_("%B: sh_link of section `%A' points to" |
3836 | " removed section `%A' of `%B'"), | |
f2876037 L |
3837 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3838 | bfd_set_error (bfd_error_bad_value); | |
3839 | return FALSE; | |
3840 | } | |
3841 | s = s->output_section; | |
3842 | } | |
ccd2ec6a L |
3843 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3844 | } | |
3845 | else | |
3846 | { | |
3847 | /* PR 290: | |
3848 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3849 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3850 | sh_info fields. Hence we could get the situation | |
08a40648 | 3851 | where s is NULL. */ |
ccd2ec6a L |
3852 | const struct elf_backend_data *bed |
3853 | = get_elf_backend_data (abfd); | |
3854 | if (bed->link_order_error_handler) | |
3855 | bed->link_order_error_handler | |
695344c0 | 3856 | /* xgettext:c-format */ |
ccd2ec6a L |
3857 | (_("%B: warning: sh_link not set for section `%A'"), |
3858 | abfd, sec); | |
38ce5b11 L |
3859 | } |
3860 | } | |
3861 | ||
252b5132 RH |
3862 | switch (d->this_hdr.sh_type) |
3863 | { | |
3864 | case SHT_REL: | |
3865 | case SHT_RELA: | |
3866 | /* A reloc section which we are treating as a normal BFD | |
3867 | section. sh_link is the section index of the symbol | |
3868 | table. sh_info is the section index of the section to | |
3869 | which the relocation entries apply. We assume that an | |
3870 | allocated reloc section uses the dynamic symbol table. | |
3871 | FIXME: How can we be sure? */ | |
3872 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3873 | if (s != NULL) | |
3874 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3875 | ||
bce964aa | 3876 | s = elf_get_reloc_section (sec); |
252b5132 | 3877 | if (s != NULL) |
9ef5d938 L |
3878 | { |
3879 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3880 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3881 | } | |
252b5132 RH |
3882 | break; |
3883 | ||
3884 | case SHT_STRTAB: | |
3885 | /* We assume that a section named .stab*str is a stabs | |
3886 | string section. We look for a section with the same name | |
3887 | but without the trailing ``str'', and set its sh_link | |
3888 | field to point to this section. */ | |
0112cd26 | 3889 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3890 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3891 | { | |
3892 | size_t len; | |
3893 | char *alc; | |
3894 | ||
3895 | len = strlen (sec->name); | |
a50b1753 | 3896 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3897 | if (alc == NULL) |
b34976b6 | 3898 | return FALSE; |
d4c88bbb | 3899 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3900 | alc[len - 3] = '\0'; |
3901 | s = bfd_get_section_by_name (abfd, alc); | |
3902 | free (alc); | |
3903 | if (s != NULL) | |
3904 | { | |
3905 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3906 | ||
3907 | /* This is a .stab section. */ | |
0594c12d AM |
3908 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3909 | elf_section_data (s)->this_hdr.sh_entsize | |
3910 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3911 | } |
3912 | } | |
3913 | break; | |
3914 | ||
3915 | case SHT_DYNAMIC: | |
3916 | case SHT_DYNSYM: | |
3917 | case SHT_GNU_verneed: | |
3918 | case SHT_GNU_verdef: | |
3919 | /* sh_link is the section header index of the string table | |
3920 | used for the dynamic entries, or the symbol table, or the | |
3921 | version strings. */ | |
3922 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3923 | if (s != NULL) | |
3924 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3925 | break; | |
3926 | ||
7f1204bb JJ |
3927 | case SHT_GNU_LIBLIST: |
3928 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3929 | list used for the dynamic entries, or the symbol table, or |
3930 | the version strings. */ | |
7f1204bb JJ |
3931 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3932 | ? ".dynstr" : ".gnu.libstr"); | |
3933 | if (s != NULL) | |
3934 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3935 | break; | |
3936 | ||
252b5132 | 3937 | case SHT_HASH: |
fdc90cb4 | 3938 | case SHT_GNU_HASH: |
252b5132 RH |
3939 | case SHT_GNU_versym: |
3940 | /* sh_link is the section header index of the symbol table | |
3941 | this hash table or version table is for. */ | |
3942 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3943 | if (s != NULL) | |
3944 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3945 | break; | |
dbb410c3 AM |
3946 | |
3947 | case SHT_GROUP: | |
12bd6957 | 3948 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3949 | } |
3950 | } | |
3951 | ||
3e19fb8f L |
3952 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
3953 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
3954 | debug section name from .debug_* to .zdebug_* if needed. */ | |
3955 | ||
b34976b6 | 3956 | return TRUE; |
252b5132 RH |
3957 | } |
3958 | ||
5372391b | 3959 | static bfd_boolean |
217aa764 | 3960 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3961 | { |
3962 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3963 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3964 | if (bed->elf_backend_sym_is_global) |
3965 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3966 | |
e47bf690 | 3967 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3968 | || bfd_is_und_section (bfd_get_section (sym)) |
3969 | || bfd_is_com_section (bfd_get_section (sym))); | |
3970 | } | |
3971 | ||
76359541 TP |
3972 | /* Filter global symbols of ABFD to include in the import library. All |
3973 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
3974 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
3975 | the beginning of that array. | |
3976 | ||
3977 | Returns the number of symbols to keep. */ | |
3978 | ||
3979 | unsigned int | |
3980 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
3981 | asymbol **syms, long symcount) | |
3982 | { | |
3983 | long src_count, dst_count = 0; | |
3984 | ||
3985 | for (src_count = 0; src_count < symcount; src_count++) | |
3986 | { | |
3987 | asymbol *sym = syms[src_count]; | |
3988 | char *name = (char *) bfd_asymbol_name (sym); | |
3989 | struct bfd_link_hash_entry *h; | |
3990 | ||
3991 | if (!sym_is_global (abfd, sym)) | |
3992 | continue; | |
3993 | ||
3994 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
3995 | if (h == NULL) |
3996 | continue; | |
76359541 TP |
3997 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
3998 | continue; | |
76359541 TP |
3999 | if (h->linker_def || h->ldscript_def) |
4000 | continue; | |
4001 | ||
4002 | syms[dst_count++] = sym; | |
4003 | } | |
4004 | ||
4005 | syms[dst_count] = NULL; | |
4006 | ||
4007 | return dst_count; | |
4008 | } | |
4009 | ||
5372391b | 4010 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4011 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4012 | |
4013 | static bfd_boolean | |
4014 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4015 | { | |
c6d8cab4 L |
4016 | elf_symbol_type *type_ptr; |
4017 | ||
4018 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
4019 | return FALSE; | |
4020 | ||
4021 | type_ptr = elf_symbol_from (abfd, sym); | |
4022 | return ((type_ptr != NULL | |
4023 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4024 | && bfd_is_abs_section (sym->section)) | |
4025 | || !(sym->section->owner == abfd | |
0f0a5e58 | 4026 | || (sym->section->output_section->owner == abfd |
2633a79c AM |
4027 | && sym->section->output_offset == 0) |
4028 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4029 | } |
4030 | ||
2633a79c AM |
4031 | /* Map symbol from it's internal number to the external number, moving |
4032 | all local symbols to be at the head of the list. */ | |
4033 | ||
b34976b6 | 4034 | static bfd_boolean |
12bd6957 | 4035 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4036 | { |
dc810e39 | 4037 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4038 | asymbol **syms = bfd_get_outsymbols (abfd); |
4039 | asymbol **sect_syms; | |
dc810e39 AM |
4040 | unsigned int num_locals = 0; |
4041 | unsigned int num_globals = 0; | |
4042 | unsigned int num_locals2 = 0; | |
4043 | unsigned int num_globals2 = 0; | |
7292b3ac | 4044 | unsigned int max_index = 0; |
dc810e39 | 4045 | unsigned int idx; |
252b5132 RH |
4046 | asection *asect; |
4047 | asymbol **new_syms; | |
252b5132 RH |
4048 | |
4049 | #ifdef DEBUG | |
4050 | fprintf (stderr, "elf_map_symbols\n"); | |
4051 | fflush (stderr); | |
4052 | #endif | |
4053 | ||
252b5132 RH |
4054 | for (asect = abfd->sections; asect; asect = asect->next) |
4055 | { | |
4056 | if (max_index < asect->index) | |
4057 | max_index = asect->index; | |
4058 | } | |
4059 | ||
4060 | max_index++; | |
a50b1753 | 4061 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4062 | if (sect_syms == NULL) |
b34976b6 | 4063 | return FALSE; |
252b5132 | 4064 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4065 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4066 | |
079e9a2f AM |
4067 | /* Init sect_syms entries for any section symbols we have already |
4068 | decided to output. */ | |
252b5132 RH |
4069 | for (idx = 0; idx < symcount; idx++) |
4070 | { | |
dc810e39 | 4071 | asymbol *sym = syms[idx]; |
c044fabd | 4072 | |
252b5132 | 4073 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4074 | && sym->value == 0 |
2633a79c AM |
4075 | && !ignore_section_sym (abfd, sym) |
4076 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4077 | { |
5372391b | 4078 | asection *sec = sym->section; |
252b5132 | 4079 | |
5372391b AM |
4080 | if (sec->owner != abfd) |
4081 | sec = sec->output_section; | |
252b5132 | 4082 | |
5372391b | 4083 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4084 | } |
4085 | } | |
4086 | ||
252b5132 RH |
4087 | /* Classify all of the symbols. */ |
4088 | for (idx = 0; idx < symcount; idx++) | |
4089 | { | |
2633a79c | 4090 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4091 | num_globals++; |
2633a79c AM |
4092 | else if (!ignore_section_sym (abfd, syms[idx])) |
4093 | num_locals++; | |
252b5132 | 4094 | } |
079e9a2f | 4095 | |
5372391b | 4096 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4097 | sections will already have a section symbol in outsymbols, but |
4098 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4099 | at least in that case. */ | |
252b5132 RH |
4100 | for (asect = abfd->sections; asect; asect = asect->next) |
4101 | { | |
079e9a2f | 4102 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4103 | { |
079e9a2f | 4104 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4105 | num_locals++; |
4106 | else | |
4107 | num_globals++; | |
252b5132 RH |
4108 | } |
4109 | } | |
4110 | ||
4111 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4112 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4113 | sizeof (asymbol *)); |
dc810e39 | 4114 | |
252b5132 | 4115 | if (new_syms == NULL) |
b34976b6 | 4116 | return FALSE; |
252b5132 RH |
4117 | |
4118 | for (idx = 0; idx < symcount; idx++) | |
4119 | { | |
4120 | asymbol *sym = syms[idx]; | |
dc810e39 | 4121 | unsigned int i; |
252b5132 | 4122 | |
2633a79c AM |
4123 | if (sym_is_global (abfd, sym)) |
4124 | i = num_locals + num_globals2++; | |
4125 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4126 | i = num_locals2++; |
4127 | else | |
2633a79c | 4128 | continue; |
252b5132 RH |
4129 | new_syms[i] = sym; |
4130 | sym->udata.i = i + 1; | |
4131 | } | |
4132 | for (asect = abfd->sections; asect; asect = asect->next) | |
4133 | { | |
079e9a2f | 4134 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4135 | { |
079e9a2f | 4136 | asymbol *sym = asect->symbol; |
dc810e39 | 4137 | unsigned int i; |
252b5132 | 4138 | |
079e9a2f | 4139 | sect_syms[asect->index] = sym; |
252b5132 RH |
4140 | if (!sym_is_global (abfd, sym)) |
4141 | i = num_locals2++; | |
4142 | else | |
4143 | i = num_locals + num_globals2++; | |
4144 | new_syms[i] = sym; | |
4145 | sym->udata.i = i + 1; | |
4146 | } | |
4147 | } | |
4148 | ||
4149 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4150 | ||
12bd6957 | 4151 | *pnum_locals = num_locals; |
b34976b6 | 4152 | return TRUE; |
252b5132 RH |
4153 | } |
4154 | ||
4155 | /* Align to the maximum file alignment that could be required for any | |
4156 | ELF data structure. */ | |
4157 | ||
268b6b39 | 4158 | static inline file_ptr |
217aa764 | 4159 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4160 | { |
4161 | return (off + align - 1) & ~(align - 1); | |
4162 | } | |
4163 | ||
4164 | /* Assign a file position to a section, optionally aligning to the | |
4165 | required section alignment. */ | |
4166 | ||
217aa764 AM |
4167 | file_ptr |
4168 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4169 | file_ptr offset, | |
4170 | bfd_boolean align) | |
252b5132 | 4171 | { |
72de5009 AM |
4172 | if (align && i_shdrp->sh_addralign > 1) |
4173 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4174 | i_shdrp->sh_offset = offset; |
4175 | if (i_shdrp->bfd_section != NULL) | |
4176 | i_shdrp->bfd_section->filepos = offset; | |
4177 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4178 | offset += i_shdrp->sh_size; | |
4179 | return offset; | |
4180 | } | |
4181 | ||
4182 | /* Compute the file positions we are going to put the sections at, and | |
4183 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4184 | is not NULL, this is being called by the ELF backend linker. */ | |
4185 | ||
b34976b6 | 4186 | bfd_boolean |
217aa764 AM |
4187 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4188 | struct bfd_link_info *link_info) | |
252b5132 | 4189 | { |
9c5bfbb7 | 4190 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4191 | struct fake_section_arg fsargs; |
b34976b6 | 4192 | bfd_boolean failed; |
ef10c3ac | 4193 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4194 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4195 | bfd_boolean need_symtab; |
252b5132 RH |
4196 | |
4197 | if (abfd->output_has_begun) | |
b34976b6 | 4198 | return TRUE; |
252b5132 RH |
4199 | |
4200 | /* Do any elf backend specific processing first. */ | |
4201 | if (bed->elf_backend_begin_write_processing) | |
4202 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4203 | ||
4204 | if (! prep_headers (abfd)) | |
b34976b6 | 4205 | return FALSE; |
252b5132 | 4206 | |
e6c51ed4 | 4207 | /* Post process the headers if necessary. */ |
78245035 | 4208 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4209 | |
d4730f92 BS |
4210 | fsargs.failed = FALSE; |
4211 | fsargs.link_info = link_info; | |
4212 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4213 | if (fsargs.failed) | |
b34976b6 | 4214 | return FALSE; |
252b5132 | 4215 | |
da9f89d4 | 4216 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4217 | return FALSE; |
252b5132 RH |
4218 | |
4219 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4220 | need_symtab = (link_info == NULL |
4221 | && (bfd_get_symcount (abfd) > 0 | |
4222 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4223 | == HAS_RELOC))); | |
4224 | if (need_symtab) | |
252b5132 RH |
4225 | { |
4226 | /* Non-zero if doing a relocatable link. */ | |
4227 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4228 | ||
4229 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4230 | return FALSE; |
252b5132 RH |
4231 | } |
4232 | ||
d4730f92 | 4233 | failed = FALSE; |
1126897b | 4234 | if (link_info == NULL) |
dbb410c3 | 4235 | { |
1126897b | 4236 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4237 | if (failed) |
b34976b6 | 4238 | return FALSE; |
dbb410c3 AM |
4239 | } |
4240 | ||
252b5132 RH |
4241 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4242 | /* sh_name was set in prep_headers. */ | |
4243 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4244 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4245 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4246 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4247 | shstrtab_hdr->sh_entsize = 0; |
4248 | shstrtab_hdr->sh_link = 0; | |
4249 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4250 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4251 | shstrtab_hdr->sh_addralign = 1; |
4252 | ||
c84fca4d | 4253 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4254 | return FALSE; |
252b5132 | 4255 | |
3516e984 | 4256 | if (need_symtab) |
252b5132 RH |
4257 | { |
4258 | file_ptr off; | |
4259 | Elf_Internal_Shdr *hdr; | |
4260 | ||
12bd6957 | 4261 | off = elf_next_file_pos (abfd); |
252b5132 | 4262 | |
6a40cf0c | 4263 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4264 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4265 | |
6a40cf0c NC |
4266 | if (elf_symtab_shndx_list (abfd) != NULL) |
4267 | { | |
4268 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4269 | if (hdr->sh_size != 0) | |
4270 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4271 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4272 | } | |
9ad5cbcf | 4273 | |
252b5132 | 4274 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4275 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4276 | |
12bd6957 | 4277 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4278 | |
4279 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4280 | out. */ |
252b5132 | 4281 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4282 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4283 | return FALSE; |
ef10c3ac | 4284 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4285 | } |
4286 | ||
b34976b6 | 4287 | abfd->output_has_begun = TRUE; |
252b5132 | 4288 | |
b34976b6 | 4289 | return TRUE; |
252b5132 RH |
4290 | } |
4291 | ||
8ded5a0f AM |
4292 | /* Make an initial estimate of the size of the program header. If we |
4293 | get the number wrong here, we'll redo section placement. */ | |
4294 | ||
4295 | static bfd_size_type | |
4296 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4297 | { | |
4298 | size_t segs; | |
4299 | asection *s; | |
2b05f1b7 | 4300 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4301 | |
4302 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4303 | and one for data. */ | |
4304 | segs = 2; | |
4305 | ||
4306 | s = bfd_get_section_by_name (abfd, ".interp"); | |
4307 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
4308 | { | |
4309 | /* If we have a loadable interpreter section, we need a | |
4310 | PT_INTERP segment. In this case, assume we also need a | |
4311 | PT_PHDR segment, although that may not be true for all | |
4312 | targets. */ | |
e9a38e0f | 4313 | segs += 2; |
8ded5a0f AM |
4314 | } |
4315 | ||
4316 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4317 | { | |
4318 | /* We need a PT_DYNAMIC segment. */ | |
4319 | ++segs; | |
f210dcff | 4320 | } |
08a40648 | 4321 | |
ceae84aa | 4322 | if (info != NULL && info->relro) |
f210dcff L |
4323 | { |
4324 | /* We need a PT_GNU_RELRO segment. */ | |
4325 | ++segs; | |
8ded5a0f AM |
4326 | } |
4327 | ||
12bd6957 | 4328 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4329 | { |
4330 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4331 | ++segs; | |
4332 | } | |
4333 | ||
12bd6957 | 4334 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4335 | { |
2b05f1b7 L |
4336 | /* We need a PT_GNU_STACK segment. */ |
4337 | ++segs; | |
4338 | } | |
94b11780 | 4339 | |
2b05f1b7 L |
4340 | for (s = abfd->sections; s != NULL; s = s->next) |
4341 | { | |
8ded5a0f | 4342 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 4343 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
4344 | { |
4345 | /* We need a PT_NOTE segment. */ | |
4346 | ++segs; | |
1c5265b5 JJ |
4347 | /* Try to create just one PT_NOTE segment |
4348 | for all adjacent loadable .note* sections. | |
4349 | gABI requires that within a PT_NOTE segment | |
4350 | (and also inside of each SHT_NOTE section) | |
4351 | each note is padded to a multiple of 4 size, | |
4352 | so we check whether the sections are correctly | |
4353 | aligned. */ | |
4354 | if (s->alignment_power == 2) | |
4355 | while (s->next != NULL | |
4356 | && s->next->alignment_power == 2 | |
4357 | && (s->next->flags & SEC_LOAD) != 0 | |
4358 | && CONST_STRNEQ (s->next->name, ".note")) | |
4359 | s = s->next; | |
8ded5a0f AM |
4360 | } |
4361 | } | |
4362 | ||
4363 | for (s = abfd->sections; s != NULL; s = s->next) | |
4364 | { | |
4365 | if (s->flags & SEC_THREAD_LOCAL) | |
4366 | { | |
4367 | /* We need a PT_TLS segment. */ | |
4368 | ++segs; | |
4369 | break; | |
4370 | } | |
4371 | } | |
4372 | ||
2b05f1b7 | 4373 | bed = get_elf_backend_data (abfd); |
a91e1603 L |
4374 | |
4375 | if ((abfd->flags & D_PAGED) != 0) | |
4376 | { | |
4377 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4378 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4379 | for (s = abfd->sections; s != NULL; s = s->next) | |
4380 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4381 | { | |
4382 | if (elf_section_data (s)->this_hdr.sh_info | |
4383 | > PT_GNU_MBIND_NUM) | |
4384 | { | |
4385 | _bfd_error_handler | |
4386 | /* xgettext:c-format */ | |
4387 | (_("%B: GNU_MBIN section `%A' has invalid sh_info field: %d"), | |
4388 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4389 | continue; | |
4390 | } | |
4391 | /* Align mbind section to page size. */ | |
4392 | if (s->alignment_power < page_align_power) | |
4393 | s->alignment_power = page_align_power; | |
4394 | segs ++; | |
4395 | } | |
4396 | } | |
4397 | ||
4398 | /* Let the backend count up any program headers it might need. */ | |
4399 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4400 | { |
4401 | int a; | |
4402 | ||
4403 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4404 | if (a == -1) | |
4405 | abort (); | |
4406 | segs += a; | |
4407 | } | |
4408 | ||
4409 | return segs * bed->s->sizeof_phdr; | |
4410 | } | |
4411 | ||
2ea37f1c NC |
4412 | /* Find the segment that contains the output_section of section. */ |
4413 | ||
4414 | Elf_Internal_Phdr * | |
4415 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4416 | { | |
4417 | struct elf_segment_map *m; | |
4418 | Elf_Internal_Phdr *p; | |
4419 | ||
12bd6957 | 4420 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4421 | m != NULL; |
4422 | m = m->next, p++) | |
4423 | { | |
4424 | int i; | |
4425 | ||
4426 | for (i = m->count - 1; i >= 0; i--) | |
4427 | if (m->sections[i] == section) | |
4428 | return p; | |
4429 | } | |
4430 | ||
4431 | return NULL; | |
4432 | } | |
4433 | ||
252b5132 RH |
4434 | /* Create a mapping from a set of sections to a program segment. */ |
4435 | ||
217aa764 AM |
4436 | static struct elf_segment_map * |
4437 | make_mapping (bfd *abfd, | |
4438 | asection **sections, | |
4439 | unsigned int from, | |
4440 | unsigned int to, | |
4441 | bfd_boolean phdr) | |
252b5132 RH |
4442 | { |
4443 | struct elf_segment_map *m; | |
4444 | unsigned int i; | |
4445 | asection **hdrpp; | |
dc810e39 | 4446 | bfd_size_type amt; |
252b5132 | 4447 | |
dc810e39 AM |
4448 | amt = sizeof (struct elf_segment_map); |
4449 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 4450 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4451 | if (m == NULL) |
4452 | return NULL; | |
4453 | m->next = NULL; | |
4454 | m->p_type = PT_LOAD; | |
4455 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4456 | m->sections[i - from] = *hdrpp; | |
4457 | m->count = to - from; | |
4458 | ||
4459 | if (from == 0 && phdr) | |
4460 | { | |
4461 | /* Include the headers in the first PT_LOAD segment. */ | |
4462 | m->includes_filehdr = 1; | |
4463 | m->includes_phdrs = 1; | |
4464 | } | |
4465 | ||
4466 | return m; | |
4467 | } | |
4468 | ||
229fcec5 MM |
4469 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4470 | on failure. */ | |
4471 | ||
4472 | struct elf_segment_map * | |
4473 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4474 | { | |
4475 | struct elf_segment_map *m; | |
4476 | ||
a50b1753 | 4477 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4478 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4479 | if (m == NULL) |
4480 | return NULL; | |
4481 | m->next = NULL; | |
4482 | m->p_type = PT_DYNAMIC; | |
4483 | m->count = 1; | |
4484 | m->sections[0] = dynsec; | |
08a40648 | 4485 | |
229fcec5 MM |
4486 | return m; |
4487 | } | |
4488 | ||
8ded5a0f | 4489 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4490 | |
b34976b6 | 4491 | static bfd_boolean |
3dea8fca AM |
4492 | elf_modify_segment_map (bfd *abfd, |
4493 | struct bfd_link_info *info, | |
4494 | bfd_boolean remove_empty_load) | |
252b5132 | 4495 | { |
252e386e | 4496 | struct elf_segment_map **m; |
8ded5a0f | 4497 | const struct elf_backend_data *bed; |
252b5132 | 4498 | |
8ded5a0f AM |
4499 | /* The placement algorithm assumes that non allocated sections are |
4500 | not in PT_LOAD segments. We ensure this here by removing such | |
4501 | sections from the segment map. We also remove excluded | |
252e386e AM |
4502 | sections. Finally, any PT_LOAD segment without sections is |
4503 | removed. */ | |
12bd6957 | 4504 | m = &elf_seg_map (abfd); |
252e386e | 4505 | while (*m) |
8ded5a0f AM |
4506 | { |
4507 | unsigned int i, new_count; | |
252b5132 | 4508 | |
252e386e | 4509 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4510 | { |
252e386e AM |
4511 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4512 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4513 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4514 | { |
252e386e AM |
4515 | (*m)->sections[new_count] = (*m)->sections[i]; |
4516 | new_count++; | |
8ded5a0f AM |
4517 | } |
4518 | } | |
252e386e | 4519 | (*m)->count = new_count; |
252b5132 | 4520 | |
1a9ccd70 NC |
4521 | if (remove_empty_load |
4522 | && (*m)->p_type == PT_LOAD | |
4523 | && (*m)->count == 0 | |
4524 | && !(*m)->includes_phdrs) | |
252e386e AM |
4525 | *m = (*m)->next; |
4526 | else | |
4527 | m = &(*m)->next; | |
8ded5a0f | 4528 | } |
252b5132 | 4529 | |
8ded5a0f AM |
4530 | bed = get_elf_backend_data (abfd); |
4531 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4532 | { |
252e386e | 4533 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4534 | return FALSE; |
252b5132 | 4535 | } |
252b5132 | 4536 | |
8ded5a0f AM |
4537 | return TRUE; |
4538 | } | |
252b5132 | 4539 | |
8ded5a0f | 4540 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4541 | |
8ded5a0f AM |
4542 | bfd_boolean |
4543 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4544 | { | |
4545 | unsigned int count; | |
4546 | struct elf_segment_map *m; | |
4547 | asection **sections = NULL; | |
4548 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4549 | bfd_boolean no_user_phdrs; |
252b5132 | 4550 | |
12bd6957 | 4551 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4552 | |
4553 | if (info != NULL) | |
4554 | info->user_phdrs = !no_user_phdrs; | |
4555 | ||
3dea8fca | 4556 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4557 | { |
8ded5a0f AM |
4558 | asection *s; |
4559 | unsigned int i; | |
4560 | struct elf_segment_map *mfirst; | |
4561 | struct elf_segment_map **pm; | |
4562 | asection *last_hdr; | |
4563 | bfd_vma last_size; | |
4564 | unsigned int phdr_index; | |
4565 | bfd_vma maxpagesize; | |
4566 | asection **hdrpp; | |
4567 | bfd_boolean phdr_in_segment = TRUE; | |
4568 | bfd_boolean writable; | |
4569 | int tls_count = 0; | |
4570 | asection *first_tls = NULL; | |
a91e1603 | 4571 | asection *first_mbind = NULL; |
8ded5a0f AM |
4572 | asection *dynsec, *eh_frame_hdr; |
4573 | bfd_size_type amt; | |
8d06853e | 4574 | bfd_vma addr_mask, wrap_to = 0; |
1a9ccd70 | 4575 | bfd_boolean linker_created_pt_phdr_segment = FALSE; |
252b5132 | 4576 | |
8ded5a0f | 4577 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4578 | |
a50b1753 | 4579 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4580 | sizeof (asection *)); |
8ded5a0f | 4581 | if (sections == NULL) |
252b5132 | 4582 | goto error_return; |
252b5132 | 4583 | |
8d06853e AM |
4584 | /* Calculate top address, avoiding undefined behaviour of shift |
4585 | left operator when shift count is equal to size of type | |
4586 | being shifted. */ | |
4587 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4588 | addr_mask = (addr_mask << 1) + 1; | |
4589 | ||
8ded5a0f AM |
4590 | i = 0; |
4591 | for (s = abfd->sections; s != NULL; s = s->next) | |
4592 | { | |
4593 | if ((s->flags & SEC_ALLOC) != 0) | |
4594 | { | |
4595 | sections[i] = s; | |
4596 | ++i; | |
8d06853e AM |
4597 | /* A wrapping section potentially clashes with header. */ |
4598 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4599 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4600 | } |
4601 | } | |
4602 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4603 | count = i; | |
252b5132 | 4604 | |
8ded5a0f | 4605 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4606 | |
8ded5a0f | 4607 | /* Build the mapping. */ |
252b5132 | 4608 | |
8ded5a0f AM |
4609 | mfirst = NULL; |
4610 | pm = &mfirst; | |
252b5132 | 4611 | |
8ded5a0f AM |
4612 | /* If we have a .interp section, then create a PT_PHDR segment for |
4613 | the program headers and a PT_INTERP segment for the .interp | |
4614 | section. */ | |
4615 | s = bfd_get_section_by_name (abfd, ".interp"); | |
4616 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
4617 | { | |
4618 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4619 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4620 | if (m == NULL) |
4621 | goto error_return; | |
4622 | m->next = NULL; | |
4623 | m->p_type = PT_PHDR; | |
f882209d | 4624 | m->p_flags = PF_R; |
8ded5a0f AM |
4625 | m->p_flags_valid = 1; |
4626 | m->includes_phdrs = 1; | |
1a9ccd70 | 4627 | linker_created_pt_phdr_segment = TRUE; |
8ded5a0f AM |
4628 | *pm = m; |
4629 | pm = &m->next; | |
252b5132 | 4630 | |
8ded5a0f | 4631 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4632 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4633 | if (m == NULL) |
4634 | goto error_return; | |
4635 | m->next = NULL; | |
4636 | m->p_type = PT_INTERP; | |
4637 | m->count = 1; | |
4638 | m->sections[0] = s; | |
4639 | ||
4640 | *pm = m; | |
4641 | pm = &m->next; | |
252b5132 | 4642 | } |
8ded5a0f AM |
4643 | |
4644 | /* Look through the sections. We put sections in the same program | |
4645 | segment when the start of the second section can be placed within | |
4646 | a few bytes of the end of the first section. */ | |
4647 | last_hdr = NULL; | |
4648 | last_size = 0; | |
4649 | phdr_index = 0; | |
4650 | maxpagesize = bed->maxpagesize; | |
063bb025 NC |
4651 | /* PR 17512: file: c8455299. |
4652 | Avoid divide-by-zero errors later on. | |
4653 | FIXME: Should we abort if the maxpagesize is zero ? */ | |
4654 | if (maxpagesize == 0) | |
4655 | maxpagesize = 1; | |
8ded5a0f AM |
4656 | writable = FALSE; |
4657 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
4658 | if (dynsec != NULL | |
4659 | && (dynsec->flags & SEC_LOAD) == 0) | |
4660 | dynsec = NULL; | |
4661 | ||
4662 | /* Deal with -Ttext or something similar such that the first section | |
4663 | is not adjacent to the program headers. This is an | |
4664 | approximation, since at this point we don't know exactly how many | |
4665 | program headers we will need. */ | |
4666 | if (count > 0) | |
252b5132 | 4667 | { |
12bd6957 | 4668 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 4669 | |
62d7a5f6 | 4670 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 4671 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 4672 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 4673 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
4674 | || (sections[0]->lma & addr_mask) < phdr_size |
4675 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
4676 | < phdr_size % maxpagesize) | |
4677 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
1a9ccd70 NC |
4678 | { |
4679 | /* PR 20815: The ELF standard says that a PT_PHDR segment, if | |
4680 | present, must be included as part of the memory image of the | |
4681 | program. Ie it must be part of a PT_LOAD segment as well. | |
4682 | If we have had to create our own PT_PHDR segment, but it is | |
4683 | not going to be covered by the first PT_LOAD segment, then | |
4684 | force the inclusion if we can... */ | |
4685 | if ((abfd->flags & D_PAGED) != 0 | |
4686 | && linker_created_pt_phdr_segment) | |
4687 | phdr_in_segment = TRUE; | |
4688 | else | |
4689 | phdr_in_segment = FALSE; | |
4690 | } | |
252b5132 RH |
4691 | } |
4692 | ||
8ded5a0f | 4693 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4694 | { |
8ded5a0f AM |
4695 | asection *hdr; |
4696 | bfd_boolean new_segment; | |
4697 | ||
4698 | hdr = *hdrpp; | |
4699 | ||
4700 | /* See if this section and the last one will fit in the same | |
4701 | segment. */ | |
4702 | ||
4703 | if (last_hdr == NULL) | |
4704 | { | |
4705 | /* If we don't have a segment yet, then we don't need a new | |
4706 | one (we build the last one after this loop). */ | |
4707 | new_segment = FALSE; | |
4708 | } | |
4709 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4710 | { | |
4711 | /* If this section has a different relation between the | |
4712 | virtual address and the load address, then we need a new | |
4713 | segment. */ | |
4714 | new_segment = TRUE; | |
4715 | } | |
b5599592 AM |
4716 | else if (hdr->lma < last_hdr->lma + last_size |
4717 | || last_hdr->lma + last_size < last_hdr->lma) | |
4718 | { | |
4719 | /* If this section has a load address that makes it overlap | |
4720 | the previous section, then we need a new segment. */ | |
4721 | new_segment = TRUE; | |
4722 | } | |
39948a60 NC |
4723 | /* In the next test we have to be careful when last_hdr->lma is close |
4724 | to the end of the address space. If the aligned address wraps | |
4725 | around to the start of the address space, then there are no more | |
4726 | pages left in memory and it is OK to assume that the current | |
4727 | section can be included in the current segment. */ | |
4728 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4729 | > last_hdr->lma) | |
4730 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4ff73856 | 4731 | <= hdr->lma)) |
8ded5a0f AM |
4732 | { |
4733 | /* If putting this section in this segment would force us to | |
4734 | skip a page in the segment, then we need a new segment. */ | |
4735 | new_segment = TRUE; | |
4736 | } | |
4737 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
e5654c0f AM |
4738 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0 |
4739 | && ((abfd->flags & D_PAGED) == 0 | |
4740 | || (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4741 | != (hdr->lma & -maxpagesize)))) | |
8ded5a0f | 4742 | { |
e5654c0f AM |
4743 | /* We don't want to put a loaded section after a |
4744 | nonloaded (ie. bss style) section in the same segment | |
4745 | as that will force the non-loaded section to be loaded. | |
4746 | Consider .tbss sections as loaded for this purpose. | |
4747 | However, like the writable/non-writable case below, | |
4748 | if they are on the same page then they must be put | |
4749 | in the same segment. */ | |
8ded5a0f AM |
4750 | new_segment = TRUE; |
4751 | } | |
4752 | else if ((abfd->flags & D_PAGED) == 0) | |
4753 | { | |
4754 | /* If the file is not demand paged, which means that we | |
4755 | don't require the sections to be correctly aligned in the | |
4756 | file, then there is no other reason for a new segment. */ | |
4757 | new_segment = FALSE; | |
4758 | } | |
4759 | else if (! writable | |
4760 | && (hdr->flags & SEC_READONLY) == 0 | |
8d06853e AM |
4761 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) |
4762 | != (hdr->lma & -maxpagesize))) | |
8ded5a0f AM |
4763 | { |
4764 | /* We don't want to put a writable section in a read only | |
4765 | segment, unless they are on the same page in memory | |
4766 | anyhow. We already know that the last section does not | |
4767 | bring us past the current section on the page, so the | |
4768 | only case in which the new section is not on the same | |
4769 | page as the previous section is when the previous section | |
4770 | ends precisely on a page boundary. */ | |
4771 | new_segment = TRUE; | |
4772 | } | |
4773 | else | |
4774 | { | |
4775 | /* Otherwise, we can use the same segment. */ | |
4776 | new_segment = FALSE; | |
4777 | } | |
4778 | ||
2889e75b | 4779 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4780 | if (last_hdr != NULL |
4781 | && info != NULL | |
4782 | && info->callbacks->override_segment_assignment != NULL) | |
4783 | new_segment | |
4784 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4785 | last_hdr, | |
4786 | new_segment); | |
2889e75b | 4787 | |
8ded5a0f AM |
4788 | if (! new_segment) |
4789 | { | |
4790 | if ((hdr->flags & SEC_READONLY) == 0) | |
4791 | writable = TRUE; | |
4792 | last_hdr = hdr; | |
4793 | /* .tbss sections effectively have zero size. */ | |
4794 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4795 | != SEC_THREAD_LOCAL) | |
4796 | last_size = hdr->size; | |
4797 | else | |
4798 | last_size = 0; | |
4799 | continue; | |
4800 | } | |
4801 | ||
4802 | /* We need a new program segment. We must create a new program | |
4803 | header holding all the sections from phdr_index until hdr. */ | |
4804 | ||
4805 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4806 | if (m == NULL) | |
4807 | goto error_return; | |
4808 | ||
4809 | *pm = m; | |
4810 | pm = &m->next; | |
4811 | ||
252b5132 | 4812 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4813 | writable = TRUE; |
8ded5a0f AM |
4814 | else |
4815 | writable = FALSE; | |
4816 | ||
baaff79e JJ |
4817 | last_hdr = hdr; |
4818 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 4819 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 4820 | last_size = hdr->size; |
baaff79e JJ |
4821 | else |
4822 | last_size = 0; | |
8ded5a0f AM |
4823 | phdr_index = i; |
4824 | phdr_in_segment = FALSE; | |
252b5132 RH |
4825 | } |
4826 | ||
86b2281f AM |
4827 | /* Create a final PT_LOAD program segment, but not if it's just |
4828 | for .tbss. */ | |
4829 | if (last_hdr != NULL | |
4830 | && (i - phdr_index != 1 | |
4831 | || ((last_hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4832 | != SEC_THREAD_LOCAL))) | |
8ded5a0f AM |
4833 | { |
4834 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4835 | if (m == NULL) | |
4836 | goto error_return; | |
252b5132 | 4837 | |
8ded5a0f AM |
4838 | *pm = m; |
4839 | pm = &m->next; | |
4840 | } | |
252b5132 | 4841 | |
8ded5a0f AM |
4842 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4843 | if (dynsec != NULL) | |
4844 | { | |
4845 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4846 | if (m == NULL) | |
4847 | goto error_return; | |
4848 | *pm = m; | |
4849 | pm = &m->next; | |
4850 | } | |
252b5132 | 4851 | |
1c5265b5 JJ |
4852 | /* For each batch of consecutive loadable .note sections, |
4853 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4854 | because if we link together nonloadable .note sections and | |
4855 | loadable .note sections, we will generate two .note sections | |
4856 | in the output file. FIXME: Using names for section types is | |
4857 | bogus anyhow. */ | |
8ded5a0f AM |
4858 | for (s = abfd->sections; s != NULL; s = s->next) |
4859 | { | |
4860 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4861 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4862 | { |
1c5265b5 | 4863 | asection *s2; |
91d6fa6a NC |
4864 | |
4865 | count = 1; | |
8ded5a0f | 4866 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4867 | if (s->alignment_power == 2) |
4868 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4869 | { |
4870 | if (s2->next->alignment_power == 2 | |
4871 | && (s2->next->flags & SEC_LOAD) != 0 | |
4872 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4873 | && align_power (s2->lma + s2->size, 2) |
4874 | == s2->next->lma) | |
55b581a6 JJ |
4875 | count++; |
4876 | else | |
4877 | break; | |
4878 | } | |
1c5265b5 | 4879 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4880 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4881 | if (m == NULL) |
4882 | goto error_return; | |
4883 | m->next = NULL; | |
4884 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4885 | m->count = count; |
4886 | while (count > 1) | |
4887 | { | |
4888 | m->sections[m->count - count--] = s; | |
4889 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4890 | s = s->next; | |
4891 | } | |
4892 | m->sections[m->count - 1] = s; | |
4893 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4894 | *pm = m; |
4895 | pm = &m->next; | |
4896 | } | |
4897 | if (s->flags & SEC_THREAD_LOCAL) | |
4898 | { | |
4899 | if (! tls_count) | |
4900 | first_tls = s; | |
4901 | tls_count++; | |
4902 | } | |
a91e1603 L |
4903 | if (first_mbind == NULL |
4904 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
4905 | first_mbind = s; | |
8ded5a0f | 4906 | } |
252b5132 | 4907 | |
8ded5a0f AM |
4908 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4909 | if (tls_count > 0) | |
4910 | { | |
8ded5a0f AM |
4911 | amt = sizeof (struct elf_segment_map); |
4912 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4913 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4914 | if (m == NULL) |
4915 | goto error_return; | |
4916 | m->next = NULL; | |
4917 | m->p_type = PT_TLS; | |
4918 | m->count = tls_count; | |
4919 | /* Mandated PF_R. */ | |
4920 | m->p_flags = PF_R; | |
4921 | m->p_flags_valid = 1; | |
d923cae0 | 4922 | s = first_tls; |
91d6fa6a | 4923 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 4924 | { |
d923cae0 L |
4925 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
4926 | { | |
4927 | _bfd_error_handler | |
4928 | (_("%B: TLS sections are not adjacent:"), abfd); | |
4929 | s = first_tls; | |
4930 | i = 0; | |
4931 | while (i < (unsigned int) tls_count) | |
4932 | { | |
4933 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
4934 | { | |
4935 | _bfd_error_handler (_(" TLS: %A"), s); | |
4936 | i++; | |
4937 | } | |
4938 | else | |
4939 | _bfd_error_handler (_(" non-TLS: %A"), s); | |
4940 | s = s->next; | |
4941 | } | |
4942 | bfd_set_error (bfd_error_bad_value); | |
4943 | goto error_return; | |
4944 | } | |
4945 | m->sections[i] = s; | |
4946 | s = s->next; | |
8ded5a0f | 4947 | } |
252b5132 | 4948 | |
8ded5a0f AM |
4949 | *pm = m; |
4950 | pm = &m->next; | |
4951 | } | |
252b5132 | 4952 | |
a91e1603 L |
4953 | if (first_mbind && (abfd->flags & D_PAGED) != 0) |
4954 | for (s = first_mbind; s != NULL; s = s->next) | |
4955 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
4956 | && (elf_section_data (s)->this_hdr.sh_info | |
4957 | <= PT_GNU_MBIND_NUM)) | |
4958 | { | |
4959 | /* Mandated PF_R. */ | |
4960 | unsigned long p_flags = PF_R; | |
4961 | if ((s->flags & SEC_READONLY) == 0) | |
4962 | p_flags |= PF_W; | |
4963 | if ((s->flags & SEC_CODE) != 0) | |
4964 | p_flags |= PF_X; | |
4965 | ||
4966 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
4967 | m = bfd_zalloc (abfd, amt); | |
4968 | if (m == NULL) | |
4969 | goto error_return; | |
4970 | m->next = NULL; | |
4971 | m->p_type = (PT_GNU_MBIND_LO | |
4972 | + elf_section_data (s)->this_hdr.sh_info); | |
4973 | m->count = 1; | |
4974 | m->p_flags_valid = 1; | |
4975 | m->sections[0] = s; | |
4976 | m->p_flags = p_flags; | |
4977 | ||
4978 | *pm = m; | |
4979 | pm = &m->next; | |
4980 | } | |
4981 | ||
8ded5a0f AM |
4982 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
4983 | segment. */ | |
12bd6957 | 4984 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
4985 | if (eh_frame_hdr != NULL |
4986 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 4987 | { |
dc810e39 | 4988 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4989 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4990 | if (m == NULL) |
4991 | goto error_return; | |
4992 | m->next = NULL; | |
8ded5a0f | 4993 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 4994 | m->count = 1; |
8ded5a0f | 4995 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
4996 | |
4997 | *pm = m; | |
4998 | pm = &m->next; | |
4999 | } | |
13ae64f3 | 5000 | |
12bd6957 | 5001 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5002 | { |
8ded5a0f | 5003 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5004 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5005 | if (m == NULL) |
5006 | goto error_return; | |
5007 | m->next = NULL; | |
2b05f1b7 | 5008 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5009 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5010 | m->p_align = bed->stack_align; |
8ded5a0f | 5011 | m->p_flags_valid = 1; |
04c3a755 NS |
5012 | m->p_align_valid = m->p_align != 0; |
5013 | if (info->stacksize > 0) | |
5014 | { | |
5015 | m->p_size = info->stacksize; | |
5016 | m->p_size_valid = 1; | |
5017 | } | |
252b5132 | 5018 | |
8ded5a0f AM |
5019 | *pm = m; |
5020 | pm = &m->next; | |
5021 | } | |
65765700 | 5022 | |
ceae84aa | 5023 | if (info != NULL && info->relro) |
8ded5a0f | 5024 | { |
f210dcff L |
5025 | for (m = mfirst; m != NULL; m = m->next) |
5026 | { | |
3832a4d8 AM |
5027 | if (m->p_type == PT_LOAD |
5028 | && m->count != 0 | |
5029 | && m->sections[0]->vma >= info->relro_start | |
5030 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5031 | { |
3832a4d8 AM |
5032 | i = m->count; |
5033 | while (--i != (unsigned) -1) | |
5034 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5035 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5036 | break; | |
5037 | ||
43a8475c | 5038 | if (i != (unsigned) -1) |
f210dcff L |
5039 | break; |
5040 | } | |
be01b344 | 5041 | } |
f210dcff L |
5042 | |
5043 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5044 | if (m != NULL) | |
5045 | { | |
5046 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5047 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5048 | if (m == NULL) |
5049 | goto error_return; | |
5050 | m->next = NULL; | |
5051 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5052 | *pm = m; |
5053 | pm = &m->next; | |
5054 | } | |
8ded5a0f | 5055 | } |
9ee5e499 | 5056 | |
8ded5a0f | 5057 | free (sections); |
12bd6957 | 5058 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5059 | } |
5060 | ||
3dea8fca | 5061 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5062 | return FALSE; |
8c37241b | 5063 | |
12bd6957 | 5064 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5065 | ++count; |
12bd6957 | 5066 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5067 | |
b34976b6 | 5068 | return TRUE; |
252b5132 RH |
5069 | |
5070 | error_return: | |
5071 | if (sections != NULL) | |
5072 | free (sections); | |
b34976b6 | 5073 | return FALSE; |
252b5132 RH |
5074 | } |
5075 | ||
5076 | /* Sort sections by address. */ | |
5077 | ||
5078 | static int | |
217aa764 | 5079 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5080 | { |
5081 | const asection *sec1 = *(const asection **) arg1; | |
5082 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5083 | bfd_size_type size1, size2; |
252b5132 RH |
5084 | |
5085 | /* Sort by LMA first, since this is the address used to | |
5086 | place the section into a segment. */ | |
5087 | if (sec1->lma < sec2->lma) | |
5088 | return -1; | |
5089 | else if (sec1->lma > sec2->lma) | |
5090 | return 1; | |
5091 | ||
5092 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5093 | the same, and this will do nothing. */ | |
5094 | if (sec1->vma < sec2->vma) | |
5095 | return -1; | |
5096 | else if (sec1->vma > sec2->vma) | |
5097 | return 1; | |
5098 | ||
5099 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5100 | ||
07c6e936 | 5101 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5102 | |
5103 | if (TOEND (sec1)) | |
5104 | { | |
5105 | if (TOEND (sec2)) | |
00a7cdc5 NC |
5106 | { |
5107 | /* If the indicies are the same, do not return 0 | |
5108 | here, but continue to try the next comparison. */ | |
5109 | if (sec1->target_index - sec2->target_index != 0) | |
5110 | return sec1->target_index - sec2->target_index; | |
5111 | } | |
252b5132 RH |
5112 | else |
5113 | return 1; | |
5114 | } | |
00a7cdc5 | 5115 | else if (TOEND (sec2)) |
252b5132 RH |
5116 | return -1; |
5117 | ||
5118 | #undef TOEND | |
5119 | ||
00a7cdc5 NC |
5120 | /* Sort by size, to put zero sized sections |
5121 | before others at the same address. */ | |
252b5132 | 5122 | |
eea6121a AM |
5123 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5124 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5125 | |
5126 | if (size1 < size2) | |
252b5132 | 5127 | return -1; |
eecdbe52 | 5128 | if (size1 > size2) |
252b5132 RH |
5129 | return 1; |
5130 | ||
5131 | return sec1->target_index - sec2->target_index; | |
5132 | } | |
5133 | ||
340b6d91 AC |
5134 | /* Ian Lance Taylor writes: |
5135 | ||
5136 | We shouldn't be using % with a negative signed number. That's just | |
5137 | not good. We have to make sure either that the number is not | |
5138 | negative, or that the number has an unsigned type. When the types | |
5139 | are all the same size they wind up as unsigned. When file_ptr is a | |
5140 | larger signed type, the arithmetic winds up as signed long long, | |
5141 | which is wrong. | |
5142 | ||
5143 | What we're trying to say here is something like ``increase OFF by | |
5144 | the least amount that will cause it to be equal to the VMA modulo | |
5145 | the page size.'' */ | |
5146 | /* In other words, something like: | |
5147 | ||
5148 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5149 | off_offset = off % bed->maxpagesize; | |
5150 | if (vma_offset < off_offset) | |
5151 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5152 | else | |
5153 | adjustment = vma_offset - off_offset; | |
08a40648 | 5154 | |
de194d85 | 5155 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5156 | |
5157 | static file_ptr | |
5158 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5159 | { | |
dc9155b2 NC |
5160 | /* PR binutils/16199: Handle an alignment of zero. */ |
5161 | if (maxpagesize == 0) | |
5162 | maxpagesize = 1; | |
340b6d91 AC |
5163 | return ((vma - off) % maxpagesize); |
5164 | } | |
5165 | ||
6d33f217 L |
5166 | static void |
5167 | print_segment_map (const struct elf_segment_map *m) | |
5168 | { | |
5169 | unsigned int j; | |
5170 | const char *pt = get_segment_type (m->p_type); | |
5171 | char buf[32]; | |
5172 | ||
5173 | if (pt == NULL) | |
5174 | { | |
5175 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5176 | sprintf (buf, "LOPROC+%7.7x", | |
5177 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5178 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5179 | sprintf (buf, "LOOS+%7.7x", | |
5180 | (unsigned int) (m->p_type - PT_LOOS)); | |
5181 | else | |
5182 | snprintf (buf, sizeof (buf), "%8.8x", | |
5183 | (unsigned int) m->p_type); | |
5184 | pt = buf; | |
5185 | } | |
4a97a0e5 | 5186 | fflush (stdout); |
6d33f217 L |
5187 | fprintf (stderr, "%s:", pt); |
5188 | for (j = 0; j < m->count; j++) | |
5189 | fprintf (stderr, " %s", m->sections [j]->name); | |
5190 | putc ('\n',stderr); | |
4a97a0e5 | 5191 | fflush (stderr); |
6d33f217 L |
5192 | } |
5193 | ||
32812159 AM |
5194 | static bfd_boolean |
5195 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5196 | { | |
5197 | void *buf; | |
5198 | bfd_boolean ret; | |
5199 | ||
5200 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5201 | return FALSE; | |
5202 | buf = bfd_zmalloc (len); | |
5203 | if (buf == NULL) | |
5204 | return FALSE; | |
5205 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5206 | free (buf); | |
5207 | return ret; | |
5208 | } | |
5209 | ||
252b5132 RH |
5210 | /* Assign file positions to the sections based on the mapping from |
5211 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5212 | the file header. */ |
252b5132 | 5213 | |
b34976b6 | 5214 | static bfd_boolean |
f3520d2f AM |
5215 | assign_file_positions_for_load_sections (bfd *abfd, |
5216 | struct bfd_link_info *link_info) | |
252b5132 RH |
5217 | { |
5218 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5219 | struct elf_segment_map *m; |
252b5132 | 5220 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5221 | Elf_Internal_Phdr *p; |
02bf8d82 | 5222 | file_ptr off; |
3f570048 | 5223 | bfd_size_type maxpagesize; |
a8c75b76 | 5224 | unsigned int pt_load_count = 0; |
f3520d2f | 5225 | unsigned int alloc; |
0920dee7 | 5226 | unsigned int i, j; |
2b0bc088 | 5227 | bfd_vma header_pad = 0; |
252b5132 | 5228 | |
e36284ab | 5229 | if (link_info == NULL |
ceae84aa | 5230 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5231 | return FALSE; |
252b5132 | 5232 | |
8ded5a0f | 5233 | alloc = 0; |
12bd6957 | 5234 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
5235 | { |
5236 | ++alloc; | |
5237 | if (m->header_size) | |
5238 | header_pad = m->header_size; | |
5239 | } | |
252b5132 | 5240 | |
82f2dbf7 NC |
5241 | if (alloc) |
5242 | { | |
5243 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5244 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5245 | } | |
5246 | else | |
5247 | { | |
5248 | /* PR binutils/12467. */ | |
5249 | elf_elfheader (abfd)->e_phoff = 0; | |
5250 | elf_elfheader (abfd)->e_phentsize = 0; | |
5251 | } | |
d324f6d6 | 5252 | |
8ded5a0f | 5253 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5254 | |
12bd6957 AM |
5255 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
5256 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 5257 | else |
12bd6957 | 5258 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 5259 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
5260 | |
5261 | if (alloc == 0) | |
f3520d2f | 5262 | { |
12bd6957 | 5263 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5264 | return TRUE; |
f3520d2f | 5265 | } |
252b5132 | 5266 | |
12bd6957 | 5267 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5268 | see assign_file_positions_except_relocs, so make sure we have |
5269 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5270 | The variable alloc contains the computed need, while |
5271 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5272 | layout. |
5273 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5274 | where the layout is forced to according to a larger size in the | |
5275 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 5276 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 5277 | == 0); |
a50b1753 NC |
5278 | phdrs = (Elf_Internal_Phdr *) |
5279 | bfd_zalloc2 (abfd, | |
07d6d2b8 AM |
5280 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
5281 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 5282 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5283 | if (phdrs == NULL) |
b34976b6 | 5284 | return FALSE; |
252b5132 | 5285 | |
3f570048 AM |
5286 | maxpagesize = 1; |
5287 | if ((abfd->flags & D_PAGED) != 0) | |
5288 | maxpagesize = bed->maxpagesize; | |
5289 | ||
252b5132 RH |
5290 | off = bed->s->sizeof_ehdr; |
5291 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5292 | if (header_pad < (bfd_vma) off) |
5293 | header_pad = 0; | |
5294 | else | |
5295 | header_pad -= off; | |
5296 | off += header_pad; | |
252b5132 | 5297 | |
12bd6957 | 5298 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 5299 | m != NULL; |
0920dee7 | 5300 | m = m->next, p++, j++) |
252b5132 | 5301 | { |
252b5132 | 5302 | asection **secpp; |
bf988460 AM |
5303 | bfd_vma off_adjust; |
5304 | bfd_boolean no_contents; | |
252b5132 RH |
5305 | |
5306 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 5307 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5308 | not be done to the PT_NOTE section of a corefile, which may |
5309 | contain several pseudo-sections artificially created by bfd. | |
5310 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5311 | if (m->count > 1 |
5312 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5313 | && m->p_type == PT_NOTE)) |
252b5132 RH |
5314 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
5315 | elf_sort_sections); | |
5316 | ||
b301b248 AM |
5317 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5318 | number of sections with contents contributing to both p_filesz | |
5319 | and p_memsz, followed by a number of sections with no contents | |
5320 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5321 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 5322 | p->p_type = m->p_type; |
28a7f3e7 | 5323 | p->p_flags = m->p_flags; |
252b5132 | 5324 | |
3f570048 AM |
5325 | if (m->count == 0) |
5326 | p->p_vaddr = 0; | |
5327 | else | |
3271a814 | 5328 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
5329 | |
5330 | if (m->p_paddr_valid) | |
5331 | p->p_paddr = m->p_paddr; | |
5332 | else if (m->count == 0) | |
5333 | p->p_paddr = 0; | |
5334 | else | |
08a40648 | 5335 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
5336 | |
5337 | if (p->p_type == PT_LOAD | |
5338 | && (abfd->flags & D_PAGED) != 0) | |
5339 | { | |
5340 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5341 | the maximum page size. When copying an executable with | |
5342 | objcopy, we set m->p_align from the input file. Use this | |
5343 | value for maxpagesize rather than bed->maxpagesize, which | |
5344 | may be different. Note that we use maxpagesize for PT_TLS | |
5345 | segment alignment later in this function, so we are relying | |
5346 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5347 | segment. */ | |
5348 | if (m->p_align_valid) | |
5349 | maxpagesize = m->p_align; | |
5350 | ||
5351 | p->p_align = maxpagesize; | |
a8c75b76 | 5352 | pt_load_count += 1; |
3f570048 | 5353 | } |
3271a814 NS |
5354 | else if (m->p_align_valid) |
5355 | p->p_align = m->p_align; | |
e970b90a DJ |
5356 | else if (m->count == 0) |
5357 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
5358 | else |
5359 | p->p_align = 0; | |
5360 | ||
bf988460 AM |
5361 | no_contents = FALSE; |
5362 | off_adjust = 0; | |
252b5132 | 5363 | if (p->p_type == PT_LOAD |
b301b248 | 5364 | && m->count > 0) |
252b5132 | 5365 | { |
b301b248 | 5366 | bfd_size_type align; |
a49e53ed | 5367 | unsigned int align_power = 0; |
b301b248 | 5368 | |
3271a814 NS |
5369 | if (m->p_align_valid) |
5370 | align = p->p_align; | |
5371 | else | |
252b5132 | 5372 | { |
3271a814 NS |
5373 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5374 | { | |
5375 | unsigned int secalign; | |
08a40648 | 5376 | |
3271a814 NS |
5377 | secalign = bfd_get_section_alignment (abfd, *secpp); |
5378 | if (secalign > align_power) | |
5379 | align_power = secalign; | |
5380 | } | |
5381 | align = (bfd_size_type) 1 << align_power; | |
5382 | if (align < maxpagesize) | |
5383 | align = maxpagesize; | |
b301b248 | 5384 | } |
252b5132 | 5385 | |
02bf8d82 AM |
5386 | for (i = 0; i < m->count; i++) |
5387 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5388 | /* If we aren't making room for this section, then | |
5389 | it must be SHT_NOBITS regardless of what we've | |
5390 | set via struct bfd_elf_special_section. */ | |
5391 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5392 | ||
bf988460 | 5393 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5394 | sections. */ |
5395 | no_contents = TRUE; | |
5396 | for (i = 0; i < m->count; i++) | |
5397 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5398 | { | |
5399 | no_contents = FALSE; | |
5400 | break; | |
5401 | } | |
bf988460 | 5402 | |
85cfcbfb | 5403 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5404 | |
5405 | /* Broken hardware and/or kernel require that files do not | |
5406 | map the same page with different permissions on some hppa | |
5407 | processors. */ | |
5408 | if (pt_load_count > 1 | |
5409 | && bed->no_page_alias | |
5410 | && (off & (maxpagesize - 1)) != 0 | |
5411 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5412 | off_adjust += maxpagesize; | |
bf988460 AM |
5413 | off += off_adjust; |
5414 | if (no_contents) | |
5415 | { | |
5416 | /* We shouldn't need to align the segment on disk since | |
5417 | the segment doesn't need file space, but the gABI | |
5418 | arguably requires the alignment and glibc ld.so | |
5419 | checks it. So to comply with the alignment | |
5420 | requirement but not waste file space, we adjust | |
5421 | p_offset for just this segment. (OFF_ADJUST is | |
5422 | subtracted from OFF later.) This may put p_offset | |
5423 | past the end of file, but that shouldn't matter. */ | |
5424 | } | |
5425 | else | |
5426 | off_adjust = 0; | |
252b5132 | 5427 | } |
b1a6d0b1 NC |
5428 | /* Make sure the .dynamic section is the first section in the |
5429 | PT_DYNAMIC segment. */ | |
5430 | else if (p->p_type == PT_DYNAMIC | |
5431 | && m->count > 1 | |
5432 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5433 | { | |
5434 | _bfd_error_handler | |
63a5468a AM |
5435 | (_("%B: The first section in the PT_DYNAMIC segment" |
5436 | " is not the .dynamic section"), | |
b301b248 | 5437 | abfd); |
b1a6d0b1 NC |
5438 | bfd_set_error (bfd_error_bad_value); |
5439 | return FALSE; | |
5440 | } | |
3f001e84 JK |
5441 | /* Set the note section type to SHT_NOTE. */ |
5442 | else if (p->p_type == PT_NOTE) | |
5443 | for (i = 0; i < m->count; i++) | |
5444 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5445 | |
252b5132 RH |
5446 | p->p_offset = 0; |
5447 | p->p_filesz = 0; | |
5448 | p->p_memsz = 0; | |
5449 | ||
5450 | if (m->includes_filehdr) | |
5451 | { | |
bf988460 | 5452 | if (!m->p_flags_valid) |
252b5132 | 5453 | p->p_flags |= PF_R; |
252b5132 RH |
5454 | p->p_filesz = bed->s->sizeof_ehdr; |
5455 | p->p_memsz = bed->s->sizeof_ehdr; | |
5456 | if (m->count > 0) | |
5457 | { | |
9ab82472 L |
5458 | if (p->p_vaddr < (bfd_vma) off |
5459 | || (!m->p_paddr_valid | |
5460 | && p->p_paddr < (bfd_vma) off)) | |
252b5132 | 5461 | { |
4eca0228 | 5462 | _bfd_error_handler |
63a5468a AM |
5463 | (_("%B: Not enough room for program headers," |
5464 | " try linking with -N"), | |
b301b248 | 5465 | abfd); |
252b5132 | 5466 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5467 | return FALSE; |
252b5132 RH |
5468 | } |
5469 | ||
5470 | p->p_vaddr -= off; | |
bf988460 | 5471 | if (!m->p_paddr_valid) |
252b5132 RH |
5472 | p->p_paddr -= off; |
5473 | } | |
252b5132 RH |
5474 | } |
5475 | ||
5476 | if (m->includes_phdrs) | |
5477 | { | |
bf988460 | 5478 | if (!m->p_flags_valid) |
252b5132 RH |
5479 | p->p_flags |= PF_R; |
5480 | ||
f3520d2f | 5481 | if (!m->includes_filehdr) |
252b5132 RH |
5482 | { |
5483 | p->p_offset = bed->s->sizeof_ehdr; | |
5484 | ||
5485 | if (m->count > 0) | |
5486 | { | |
252b5132 | 5487 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 5488 | if (!m->p_paddr_valid) |
252b5132 RH |
5489 | p->p_paddr -= off - p->p_offset; |
5490 | } | |
252b5132 RH |
5491 | } |
5492 | ||
5493 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
5494 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5495 | if (m->count) |
5496 | { | |
5497 | p->p_filesz += header_pad; | |
5498 | p->p_memsz += header_pad; | |
5499 | } | |
252b5132 RH |
5500 | } |
5501 | ||
5502 | if (p->p_type == PT_LOAD | |
5503 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5504 | { | |
bf988460 | 5505 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5506 | p->p_offset = off; |
252b5132 RH |
5507 | else |
5508 | { | |
5509 | file_ptr adjust; | |
5510 | ||
5511 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5512 | if (!no_contents) |
5513 | p->p_filesz += adjust; | |
252b5132 RH |
5514 | p->p_memsz += adjust; |
5515 | } | |
5516 | } | |
5517 | ||
1ea63fd2 AM |
5518 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5519 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5520 | core files, for sections in PT_NOTE segments. | |
5521 | assign_file_positions_for_non_load_sections will set filepos | |
5522 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5523 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5524 | { | |
5525 | asection *sec; | |
252b5132 | 5526 | bfd_size_type align; |
627b32bc | 5527 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5528 | |
5529 | sec = *secpp; | |
02bf8d82 | 5530 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5531 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5532 | |
88967714 AM |
5533 | if ((p->p_type == PT_LOAD |
5534 | || p->p_type == PT_TLS) | |
5535 | && (this_hdr->sh_type != SHT_NOBITS | |
5536 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5537 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5538 | || p->p_type == PT_TLS)))) | |
252b5132 | 5539 | { |
b5599592 AM |
5540 | bfd_vma p_start = p->p_paddr; |
5541 | bfd_vma p_end = p_start + p->p_memsz; | |
5542 | bfd_vma s_start = sec->lma; | |
5543 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5544 | |
a2d1e028 L |
5545 | if (adjust != 0 |
5546 | && (s_start < p_end | |
5547 | || p_end < p_start)) | |
252b5132 | 5548 | { |
4eca0228 | 5549 | _bfd_error_handler |
695344c0 | 5550 | /* xgettext:c-format */ |
76cfced5 AM |
5551 | (_("%B: section %A lma %#Lx adjusted to %#Lx"), |
5552 | abfd, sec, s_start, p_end); | |
88967714 | 5553 | adjust = 0; |
b5599592 | 5554 | sec->lma = p_end; |
1cfb7d1e | 5555 | } |
3ac9b6c9 | 5556 | p->p_memsz += adjust; |
1cfb7d1e | 5557 | |
88967714 AM |
5558 | if (this_hdr->sh_type != SHT_NOBITS) |
5559 | { | |
32812159 AM |
5560 | if (p->p_filesz + adjust < p->p_memsz) |
5561 | { | |
5562 | /* We have a PROGBITS section following NOBITS ones. | |
07d6d2b8 | 5563 | Allocate file space for the NOBITS section(s) and |
32812159 AM |
5564 | zero it. */ |
5565 | adjust = p->p_memsz - p->p_filesz; | |
5566 | if (!write_zeros (abfd, off, adjust)) | |
5567 | return FALSE; | |
5568 | } | |
88967714 AM |
5569 | off += adjust; |
5570 | p->p_filesz += adjust; | |
252b5132 | 5571 | } |
252b5132 RH |
5572 | } |
5573 | ||
5574 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5575 | { | |
b301b248 AM |
5576 | /* The section at i == 0 is the one that actually contains |
5577 | everything. */ | |
4a938328 MS |
5578 | if (i == 0) |
5579 | { | |
627b32bc | 5580 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5581 | off += this_hdr->sh_size; |
5582 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5583 | p->p_memsz = 0; |
5584 | p->p_align = 1; | |
252b5132 | 5585 | } |
4a938328 | 5586 | else |
252b5132 | 5587 | { |
b301b248 | 5588 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5589 | sec->filepos = 0; |
eea6121a | 5590 | sec->size = 0; |
b301b248 AM |
5591 | sec->flags = 0; |
5592 | continue; | |
252b5132 | 5593 | } |
252b5132 RH |
5594 | } |
5595 | else | |
5596 | { | |
1e951488 | 5597 | if (p->p_type == PT_LOAD) |
b301b248 | 5598 | { |
1e951488 AM |
5599 | this_hdr->sh_offset = sec->filepos = off; |
5600 | if (this_hdr->sh_type != SHT_NOBITS) | |
5601 | off += this_hdr->sh_size; | |
5602 | } | |
5603 | else if (this_hdr->sh_type == SHT_NOBITS | |
5604 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5605 | && this_hdr->sh_offset == 0) | |
5606 | { | |
5607 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5608 | (See _bfd_elf_map_sections_to_segments "Create a | |
5609 | final PT_LOAD".) Set sh_offset to the value it | |
5610 | would have if we had created a zero p_filesz and | |
5611 | p_memsz PT_LOAD header for the section. This | |
5612 | also makes the PT_TLS header have the same | |
5613 | p_offset value. */ | |
5614 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5615 | off, align); | |
5616 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5617 | } |
252b5132 | 5618 | |
02bf8d82 | 5619 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5620 | { |
6a3cd2b4 | 5621 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5622 | /* A load section without SHF_ALLOC is something like |
5623 | a note section in a PT_NOTE segment. These take | |
5624 | file space but are not loaded into memory. */ | |
5625 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5626 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5627 | } |
6a3cd2b4 | 5628 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5629 | { |
6a3cd2b4 AM |
5630 | if (p->p_type == PT_TLS) |
5631 | p->p_memsz += this_hdr->sh_size; | |
5632 | ||
5633 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5634 | normal segments. */ | |
5635 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5636 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5637 | } |
5638 | ||
b10a8ae0 L |
5639 | if (align > p->p_align |
5640 | && !m->p_align_valid | |
5641 | && (p->p_type != PT_LOAD | |
5642 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5643 | p->p_align = align; |
5644 | } | |
5645 | ||
bf988460 | 5646 | if (!m->p_flags_valid) |
252b5132 RH |
5647 | { |
5648 | p->p_flags |= PF_R; | |
02bf8d82 | 5649 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5650 | p->p_flags |= PF_X; |
02bf8d82 | 5651 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5652 | p->p_flags |= PF_W; |
5653 | } | |
5654 | } | |
43a8475c | 5655 | |
bf988460 | 5656 | off -= off_adjust; |
0920dee7 | 5657 | |
7c928300 AM |
5658 | /* Check that all sections are in a PT_LOAD segment. |
5659 | Don't check funky gdb generated core files. */ | |
5660 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5661 | { |
5662 | bfd_boolean check_vma = TRUE; | |
5663 | ||
5664 | for (i = 1; i < m->count; i++) | |
5665 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5666 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5667 | ->this_hdr), p) != 0 | |
5668 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5669 | ->this_hdr), p) != 0) | |
0920dee7 | 5670 | { |
9a83a553 AM |
5671 | /* Looks like we have overlays packed into the segment. */ |
5672 | check_vma = FALSE; | |
5673 | break; | |
0920dee7 | 5674 | } |
9a83a553 AM |
5675 | |
5676 | for (i = 0; i < m->count; i++) | |
5677 | { | |
5678 | Elf_Internal_Shdr *this_hdr; | |
5679 | asection *sec; | |
5680 | ||
5681 | sec = m->sections[i]; | |
5682 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5683 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5684 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5685 | { |
4eca0228 | 5686 | _bfd_error_handler |
695344c0 | 5687 | /* xgettext:c-format */ |
9a83a553 AM |
5688 | (_("%B: section `%A' can't be allocated in segment %d"), |
5689 | abfd, sec, j); | |
5690 | print_segment_map (m); | |
5691 | } | |
5692 | } | |
5693 | } | |
252b5132 RH |
5694 | } |
5695 | ||
12bd6957 | 5696 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5697 | return TRUE; |
5698 | } | |
5699 | ||
5700 | /* Assign file positions for the other sections. */ | |
5701 | ||
5702 | static bfd_boolean | |
5703 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5704 | struct bfd_link_info *link_info) | |
5705 | { | |
5706 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5707 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5708 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5709 | Elf_Internal_Phdr *phdrs; |
5710 | Elf_Internal_Phdr *p; | |
5711 | struct elf_segment_map *m; | |
62655c7b | 5712 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5713 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5714 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5715 | file_ptr off; | |
f3520d2f AM |
5716 | unsigned int count; |
5717 | ||
5c182d5f | 5718 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5719 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5720 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5721 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5722 | { |
5c182d5f AM |
5723 | Elf_Internal_Shdr *hdr; |
5724 | ||
5725 | hdr = *hdrpp; | |
5726 | if (hdr->bfd_section != NULL | |
252e386e AM |
5727 | && (hdr->bfd_section->filepos != 0 |
5728 | || (hdr->sh_type == SHT_NOBITS | |
5729 | && hdr->contents == NULL))) | |
627b32bc | 5730 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5731 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5732 | { | |
e8d2ba53 | 5733 | if (hdr->sh_size != 0) |
4eca0228 | 5734 | _bfd_error_handler |
695344c0 | 5735 | /* xgettext:c-format */ |
e8d2ba53 AM |
5736 | (_("%B: warning: allocated section `%s' not in segment"), |
5737 | abfd, | |
5738 | (hdr->bfd_section == NULL | |
5739 | ? "*unknown*" | |
5740 | : hdr->bfd_section->name)); | |
3ba71138 L |
5741 | /* We don't need to page align empty sections. */ |
5742 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5743 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5744 | bed->maxpagesize); | |
5745 | else | |
5746 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5747 | hdr->sh_addralign); | |
5748 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5749 | FALSE); | |
5750 | } | |
5751 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5752 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5753 | || (hdr->bfd_section != NULL |
5754 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5755 | /* Compress DWARF debug sections. */ | |
12bd6957 | 5756 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
5757 | || (elf_symtab_shndx_list (abfd) != NULL |
5758 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
5759 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5760 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5761 | hdr->sh_offset = -1; |
5762 | else | |
5763 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5764 | } |
5765 | ||
252b5132 RH |
5766 | /* Now that we have set the section file positions, we can set up |
5767 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5768 | count = 0; |
5769 | filehdr_vaddr = 0; | |
5770 | filehdr_paddr = 0; | |
5771 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5772 | phdrs_paddr = 0; | |
62655c7b | 5773 | hdrs_segment = NULL; |
f3520d2f | 5774 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5775 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5776 | { |
5777 | ++count; | |
5778 | if (p->p_type != PT_LOAD) | |
5779 | continue; | |
5780 | ||
5781 | if (m->includes_filehdr) | |
5782 | { | |
5783 | filehdr_vaddr = p->p_vaddr; | |
5784 | filehdr_paddr = p->p_paddr; | |
5785 | } | |
5786 | if (m->includes_phdrs) | |
5787 | { | |
5788 | phdrs_vaddr = p->p_vaddr; | |
5789 | phdrs_paddr = p->p_paddr; | |
5790 | if (m->includes_filehdr) | |
5791 | { | |
62655c7b | 5792 | hdrs_segment = m; |
f3520d2f AM |
5793 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5794 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5795 | } | |
5796 | } | |
5797 | } | |
5798 | ||
62655c7b RM |
5799 | if (hdrs_segment != NULL && link_info != NULL) |
5800 | { | |
5801 | /* There is a segment that contains both the file headers and the | |
5802 | program headers, so provide a symbol __ehdr_start pointing there. | |
5803 | A program can use this to examine itself robustly. */ | |
5804 | ||
5805 | struct elf_link_hash_entry *hash | |
5806 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5807 | FALSE, FALSE, TRUE); | |
5808 | /* If the symbol was referenced and not defined, define it. */ | |
5809 | if (hash != NULL | |
5810 | && (hash->root.type == bfd_link_hash_new | |
5811 | || hash->root.type == bfd_link_hash_undefined | |
5812 | || hash->root.type == bfd_link_hash_undefweak | |
5813 | || hash->root.type == bfd_link_hash_common)) | |
5814 | { | |
5815 | asection *s = NULL; | |
5816 | if (hdrs_segment->count != 0) | |
5817 | /* The segment contains sections, so use the first one. */ | |
5818 | s = hdrs_segment->sections[0]; | |
5819 | else | |
5820 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 5821 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
5822 | if (m->count != 0) |
5823 | { | |
5824 | s = m->sections[0]; | |
5825 | break; | |
5826 | } | |
5827 | ||
5828 | if (s != NULL) | |
5829 | { | |
5830 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5831 | hash->root.u.def.section = s; | |
5832 | } | |
5833 | else | |
5834 | { | |
5835 | hash->root.u.def.value = filehdr_vaddr; | |
5836 | hash->root.u.def.section = bfd_abs_section_ptr; | |
5837 | } | |
5838 | ||
5839 | hash->root.type = bfd_link_hash_defined; | |
5840 | hash->def_regular = 1; | |
5841 | hash->non_elf = 0; | |
5842 | } | |
5843 | } | |
5844 | ||
12bd6957 | 5845 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 5846 | { |
129af99f | 5847 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 5848 | { |
b84a33b5 | 5849 | const Elf_Internal_Phdr *lp; |
3146fac4 | 5850 | struct elf_segment_map *lm; |
1ea63fd2 | 5851 | |
129af99f | 5852 | if (link_info != NULL) |
8c37241b | 5853 | { |
129af99f AS |
5854 | /* During linking the range of the RELRO segment is passed |
5855 | in link_info. */ | |
12bd6957 | 5856 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
5857 | lm != NULL; |
5858 | lm = lm->next, lp++) | |
8c37241b JJ |
5859 | { |
5860 | if (lp->p_type == PT_LOAD | |
b84a33b5 | 5861 | && lp->p_vaddr < link_info->relro_end |
3146fac4 AM |
5862 | && lm->count != 0 |
5863 | && lm->sections[0]->vma >= link_info->relro_start) | |
8c37241b JJ |
5864 | break; |
5865 | } | |
8981c88a | 5866 | |
3146fac4 | 5867 | BFD_ASSERT (lm != NULL); |
8c37241b | 5868 | } |
129af99f AS |
5869 | else |
5870 | { | |
5871 | /* Otherwise we are copying an executable or shared | |
b84a33b5 | 5872 | library, but we need to use the same linker logic. */ |
129af99f AS |
5873 | for (lp = phdrs; lp < phdrs + count; ++lp) |
5874 | { | |
5875 | if (lp->p_type == PT_LOAD | |
5876 | && lp->p_paddr == p->p_paddr) | |
5877 | break; | |
5878 | } | |
b84a33b5 AM |
5879 | } |
5880 | ||
5881 | if (lp < phdrs + count) | |
5882 | { | |
5883 | p->p_vaddr = lp->p_vaddr; | |
5884 | p->p_paddr = lp->p_paddr; | |
5885 | p->p_offset = lp->p_offset; | |
5886 | if (link_info != NULL) | |
5887 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
5888 | else if (m->p_size_valid) | |
5889 | p->p_filesz = m->p_size; | |
129af99f AS |
5890 | else |
5891 | abort (); | |
b84a33b5 | 5892 | p->p_memsz = p->p_filesz; |
f3944f72 | 5893 | /* Preserve the alignment and flags if they are valid. The |
07d6d2b8 | 5894 | gold linker generates RW/4 for the PT_GNU_RELRO section. |
f3944f72 L |
5895 | It is better for objcopy/strip to honor these attributes |
5896 | otherwise gdb will choke when using separate debug files. | |
5897 | */ | |
5898 | if (!m->p_align_valid) | |
5899 | p->p_align = 1; | |
5900 | if (!m->p_flags_valid) | |
341b8ee7 | 5901 | p->p_flags = PF_R; |
129af99f | 5902 | } |
9433b9b1 | 5903 | else |
b84a33b5 AM |
5904 | { |
5905 | memset (p, 0, sizeof *p); | |
5906 | p->p_type = PT_NULL; | |
5907 | } | |
129af99f | 5908 | } |
04c3a755 NS |
5909 | else if (p->p_type == PT_GNU_STACK) |
5910 | { | |
5911 | if (m->p_size_valid) | |
5912 | p->p_memsz = m->p_size; | |
5913 | } | |
129af99f AS |
5914 | else if (m->count != 0) |
5915 | { | |
e06efbf1 | 5916 | unsigned int i; |
1a9ccd70 | 5917 | |
129af99f AS |
5918 | if (p->p_type != PT_LOAD |
5919 | && (p->p_type != PT_NOTE | |
5920 | || bfd_get_format (abfd) != bfd_core)) | |
5921 | { | |
1a9ccd70 NC |
5922 | /* A user specified segment layout may include a PHDR |
5923 | segment that overlaps with a LOAD segment... */ | |
5924 | if (p->p_type == PT_PHDR) | |
5925 | { | |
5926 | m->count = 0; | |
5927 | continue; | |
5928 | } | |
5929 | ||
c86934ce NC |
5930 | if (m->includes_filehdr || m->includes_phdrs) |
5931 | { | |
b1fa9dd6 | 5932 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 5933 | _bfd_error_handler |
76cfced5 AM |
5934 | (_("%B: error: non-load segment %d includes file header " |
5935 | "and/or program header"), | |
5936 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
5937 | return FALSE; |
5938 | } | |
129af99f | 5939 | |
86b2281f | 5940 | p->p_filesz = 0; |
129af99f | 5941 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
5942 | for (i = m->count; i-- != 0;) |
5943 | { | |
5944 | asection *sect = m->sections[i]; | |
5945 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
5946 | if (hdr->sh_type != SHT_NOBITS) | |
5947 | { | |
5948 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
5949 | + hdr->sh_size); | |
5950 | break; | |
5951 | } | |
5952 | } | |
129af99f AS |
5953 | } |
5954 | } | |
5955 | else if (m->includes_filehdr) | |
5956 | { | |
5957 | p->p_vaddr = filehdr_vaddr; | |
5958 | if (! m->p_paddr_valid) | |
5959 | p->p_paddr = filehdr_paddr; | |
5960 | } | |
5961 | else if (m->includes_phdrs) | |
5962 | { | |
5963 | p->p_vaddr = phdrs_vaddr; | |
5964 | if (! m->p_paddr_valid) | |
5965 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
5966 | } |
5967 | } | |
5968 | ||
12bd6957 | 5969 | elf_next_file_pos (abfd) = off; |
252b5132 | 5970 | |
b34976b6 | 5971 | return TRUE; |
252b5132 RH |
5972 | } |
5973 | ||
6a40cf0c NC |
5974 | static elf_section_list * |
5975 | find_section_in_list (unsigned int i, elf_section_list * list) | |
5976 | { | |
5977 | for (;list != NULL; list = list->next) | |
5978 | if (list->ndx == i) | |
5979 | break; | |
5980 | return list; | |
5981 | } | |
5982 | ||
252b5132 RH |
5983 | /* Work out the file positions of all the sections. This is called by |
5984 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
5985 | VMAs must be known before this is called. | |
5986 | ||
e0638f70 AM |
5987 | Reloc sections come in two flavours: Those processed specially as |
5988 | "side-channel" data attached to a section to which they apply, and | |
5989 | those that bfd doesn't process as relocations. The latter sort are | |
5990 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
5991 | consider the former sort here, unless they form part of the loadable | |
5992 | image. Reloc sections not assigned here will be handled later by | |
5993 | assign_file_positions_for_relocs. | |
252b5132 RH |
5994 | |
5995 | We also don't set the positions of the .symtab and .strtab here. */ | |
5996 | ||
b34976b6 | 5997 | static bfd_boolean |
c84fca4d AO |
5998 | assign_file_positions_except_relocs (bfd *abfd, |
5999 | struct bfd_link_info *link_info) | |
252b5132 | 6000 | { |
5c182d5f AM |
6001 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6002 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6003 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6004 | |
6005 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6006 | && bfd_get_format (abfd) != bfd_core) | |
6007 | { | |
5c182d5f AM |
6008 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6009 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6010 | Elf_Internal_Shdr **hdrpp; |
6011 | unsigned int i; | |
a485e98e | 6012 | file_ptr off; |
252b5132 RH |
6013 | |
6014 | /* Start after the ELF header. */ | |
6015 | off = i_ehdrp->e_ehsize; | |
6016 | ||
6017 | /* We are not creating an executable, which means that we are | |
6018 | not creating a program header, and that the actual order of | |
6019 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6020 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6021 | { |
6022 | Elf_Internal_Shdr *hdr; | |
6023 | ||
6024 | hdr = *hdrpp; | |
e0638f70 AM |
6025 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6026 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
6027 | || (hdr->bfd_section != NULL |
6028 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
6029 | /* Compress DWARF debug sections. */ | |
12bd6957 | 6030 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6031 | || (elf_symtab_shndx_list (abfd) != NULL |
6032 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6033 | || i == elf_strtab_sec (abfd) |
6034 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6035 | { |
6036 | hdr->sh_offset = -1; | |
252b5132 | 6037 | } |
9ad5cbcf | 6038 | else |
b34976b6 | 6039 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6040 | } |
a485e98e AM |
6041 | |
6042 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6043 | } |
6044 | else | |
6045 | { | |
f3520d2f AM |
6046 | unsigned int alloc; |
6047 | ||
252b5132 | 6048 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6049 | assignment of sections to segments. */ |
f3520d2f AM |
6050 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6051 | return FALSE; | |
6052 | ||
6053 | /* And for non-load sections. */ | |
6054 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6055 | return FALSE; | |
6056 | ||
e36284ab AM |
6057 | if (bed->elf_backend_modify_program_headers != NULL) |
6058 | { | |
6059 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6060 | return FALSE; | |
6061 | } | |
6062 | ||
58e7ebac | 6063 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6064 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac L |
6065 | { |
6066 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
6067 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
6068 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6069 | ||
6070 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6071 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6072 | for (; segment < end_segment; segment++) | |
6073 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6074 | p_vaddr = segment->p_vaddr; | |
6075 | ||
6076 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6077 | segments is non-zero. */ | |
6078 | if (p_vaddr) | |
6079 | i_ehdrp->e_type = ET_EXEC; | |
6080 | } | |
6081 | ||
f3520d2f | 6082 | /* Write out the program headers. */ |
12bd6957 | 6083 | alloc = elf_program_header_size (abfd) / bed->s->sizeof_phdr; |
1a9ccd70 NC |
6084 | |
6085 | /* Sort the program headers into the ordering required by the ELF standard. */ | |
6086 | if (alloc == 0) | |
6087 | return TRUE; | |
6088 | ||
1a9ccd70 NC |
6089 | /* PR ld/20815 - Check that the program header segment, if present, will |
6090 | be loaded into memory. FIXME: The check below is not sufficient as | |
6091 | really all PT_LOAD segments should be checked before issuing an error | |
6092 | message. Plus the PHDR segment does not have to be the first segment | |
6093 | in the program header table. But this version of the check should | |
cd584857 NC |
6094 | catch all real world use cases. |
6095 | ||
6096 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6097 | ascending order, as per the ELF spec. But this breaks some programs, | |
6098 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6099 | changed or the programs updated. */ |
1a9ccd70 | 6100 | if (alloc > 1 |
cd584857 NC |
6101 | && tdata->phdr[0].p_type == PT_PHDR |
6102 | && ! bed->elf_backend_allow_non_load_phdr (abfd, tdata->phdr, alloc) | |
6103 | && tdata->phdr[1].p_type == PT_LOAD | |
6104 | && (tdata->phdr[1].p_vaddr > tdata->phdr[0].p_vaddr | |
6105 | || (tdata->phdr[1].p_vaddr + tdata->phdr[1].p_memsz) | |
6106 | < (tdata->phdr[0].p_vaddr + tdata->phdr[0].p_memsz))) | |
1a9ccd70 NC |
6107 | { |
6108 | /* The fix for this error is usually to edit the linker script being | |
6109 | used and set up the program headers manually. Either that or | |
6110 | leave room for the headers at the start of the SECTIONS. */ | |
6111 | _bfd_error_handler (_("\ | |
6112 | %B: error: PHDR segment not covered by LOAD segment"), | |
6113 | abfd); | |
1a9ccd70 NC |
6114 | return FALSE; |
6115 | } | |
6116 | ||
f3520d2f | 6117 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
cd584857 NC |
6118 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6119 | return FALSE; | |
252b5132 RH |
6120 | } |
6121 | ||
b34976b6 | 6122 | return TRUE; |
252b5132 RH |
6123 | } |
6124 | ||
b34976b6 | 6125 | static bfd_boolean |
217aa764 | 6126 | prep_headers (bfd *abfd) |
252b5132 | 6127 | { |
3d540e93 | 6128 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6129 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6130 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6131 | |
6132 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6133 | |
2b0f7ef9 | 6134 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6135 | if (shstrtab == NULL) |
b34976b6 | 6136 | return FALSE; |
252b5132 RH |
6137 | |
6138 | elf_shstrtab (abfd) = shstrtab; | |
6139 | ||
6140 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6141 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6142 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6143 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6144 | ||
6145 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6146 | i_ehdrp->e_ident[EI_DATA] = | |
6147 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6148 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6149 | ||
252b5132 RH |
6150 | if ((abfd->flags & DYNAMIC) != 0) |
6151 | i_ehdrp->e_type = ET_DYN; | |
6152 | else if ((abfd->flags & EXEC_P) != 0) | |
6153 | i_ehdrp->e_type = ET_EXEC; | |
6154 | else if (bfd_get_format (abfd) == bfd_core) | |
6155 | i_ehdrp->e_type = ET_CORE; | |
6156 | else | |
6157 | i_ehdrp->e_type = ET_REL; | |
6158 | ||
6159 | switch (bfd_get_arch (abfd)) | |
6160 | { | |
6161 | case bfd_arch_unknown: | |
6162 | i_ehdrp->e_machine = EM_NONE; | |
6163 | break; | |
aa4f99bb AO |
6164 | |
6165 | /* There used to be a long list of cases here, each one setting | |
6166 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6167 | in the corresponding bfd definition. To avoid duplication, | |
6168 | the switch was removed. Machines that need special handling | |
6169 | can generally do it in elf_backend_final_write_processing(), | |
6170 | unless they need the information earlier than the final write. | |
6171 | Such need can generally be supplied by replacing the tests for | |
6172 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6173 | default: |
9c5bfbb7 AM |
6174 | i_ehdrp->e_machine = bed->elf_machine_code; |
6175 | } | |
aa4f99bb | 6176 | |
252b5132 RH |
6177 | i_ehdrp->e_version = bed->s->ev_current; |
6178 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6179 | ||
c044fabd | 6180 | /* No program header, for now. */ |
252b5132 RH |
6181 | i_ehdrp->e_phoff = 0; |
6182 | i_ehdrp->e_phentsize = 0; | |
6183 | i_ehdrp->e_phnum = 0; | |
6184 | ||
c044fabd | 6185 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6186 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6187 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6188 | ||
c044fabd | 6189 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6190 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6191 | /* It all happens later. */ |
6192 | ; | |
252b5132 RH |
6193 | else |
6194 | { | |
6195 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6196 | i_ehdrp->e_phoff = 0; |
6197 | } | |
6198 | ||
6199 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6200 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6201 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6202 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6203 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6204 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6205 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6206 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6207 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6208 | return FALSE; |
252b5132 | 6209 | |
b34976b6 | 6210 | return TRUE; |
252b5132 RH |
6211 | } |
6212 | ||
6213 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6214 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6215 | |
0ce398f1 L |
6216 | static bfd_boolean |
6217 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6218 | { |
6219 | file_ptr off; | |
e06efbf1 | 6220 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6221 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6222 | Elf_Internal_Ehdr *i_ehdrp; |
6223 | const struct elf_backend_data *bed; | |
252b5132 | 6224 | |
12bd6957 | 6225 | off = elf_next_file_pos (abfd); |
252b5132 | 6226 | |
e06efbf1 L |
6227 | shdrpp = elf_elfsections (abfd); |
6228 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6229 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6230 | { |
252b5132 | 6231 | shdrp = *shdrpp; |
0ce398f1 L |
6232 | if (shdrp->sh_offset == -1) |
6233 | { | |
3e19fb8f | 6234 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6235 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6236 | || shdrp->sh_type == SHT_RELA); | |
6237 | if (is_rel | |
3e19fb8f | 6238 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
6239 | { |
6240 | if (!is_rel) | |
6241 | { | |
3e19fb8f L |
6242 | const char *name = sec->name; |
6243 | struct bfd_elf_section_data *d; | |
6244 | ||
0ce398f1 | 6245 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6246 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6247 | shdrp->contents)) |
6248 | return FALSE; | |
3e19fb8f L |
6249 | |
6250 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6251 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6252 | { | |
6253 | /* If section is compressed with zlib-gnu, convert | |
6254 | section name from .debug_* to .zdebug_*. */ | |
6255 | char *new_name | |
6256 | = convert_debug_to_zdebug (abfd, name); | |
6257 | if (new_name == NULL) | |
6258 | return FALSE; | |
6259 | name = new_name; | |
6260 | } | |
dd905818 | 6261 | /* Add section name to section name section. */ |
3e19fb8f L |
6262 | if (shdrp->sh_name != (unsigned int) -1) |
6263 | abort (); | |
6264 | shdrp->sh_name | |
6265 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6266 | name, FALSE); | |
6267 | d = elf_section_data (sec); | |
6268 | ||
dd905818 | 6269 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6270 | if (d->rel.hdr |
6271 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6272 | d->rel.hdr, | |
6273 | name, FALSE)) | |
6274 | return FALSE; | |
6275 | if (d->rela.hdr | |
6276 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6277 | d->rela.hdr, | |
91cb26da | 6278 | name, TRUE)) |
3e19fb8f L |
6279 | return FALSE; |
6280 | ||
0ce398f1 | 6281 | /* Update section size and contents. */ |
3e19fb8f L |
6282 | shdrp->sh_size = sec->size; |
6283 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6284 | shdrp->bfd_section->contents = NULL; |
6285 | } | |
6286 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
6287 | off, | |
6288 | TRUE); | |
6289 | } | |
6290 | } | |
252b5132 RH |
6291 | } |
6292 | ||
3e19fb8f L |
6293 | /* Place section name section after DWARF debug sections have been |
6294 | compressed. */ | |
6295 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6296 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6297 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6298 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6299 | ||
6300 | /* Place the section headers. */ | |
a485e98e AM |
6301 | i_ehdrp = elf_elfheader (abfd); |
6302 | bed = get_elf_backend_data (abfd); | |
6303 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6304 | i_ehdrp->e_shoff = off; | |
6305 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6306 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6307 | |
6308 | return TRUE; | |
252b5132 RH |
6309 | } |
6310 | ||
b34976b6 | 6311 | bfd_boolean |
217aa764 | 6312 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6313 | { |
9c5bfbb7 | 6314 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6315 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6316 | bfd_boolean failed; |
9ad5cbcf | 6317 | unsigned int count, num_sec; |
30e8ee25 | 6318 | struct elf_obj_tdata *t; |
252b5132 RH |
6319 | |
6320 | if (! abfd->output_has_begun | |
217aa764 | 6321 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6322 | return FALSE; |
252b5132 RH |
6323 | |
6324 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6325 | |
b34976b6 | 6326 | failed = FALSE; |
252b5132 RH |
6327 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6328 | if (failed) | |
b34976b6 | 6329 | return FALSE; |
252b5132 | 6330 | |
0ce398f1 L |
6331 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6332 | return FALSE; | |
252b5132 | 6333 | |
c044fabd | 6334 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6335 | num_sec = elf_numsections (abfd); |
6336 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6337 | { |
3e19fb8f L |
6338 | i_shdrp[count]->sh_name |
6339 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6340 | i_shdrp[count]->sh_name); | |
252b5132 RH |
6341 | if (bed->elf_backend_section_processing) |
6342 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
6343 | if (i_shdrp[count]->contents) | |
6344 | { | |
dc810e39 AM |
6345 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6346 | ||
252b5132 | 6347 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6348 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6349 | return FALSE; |
252b5132 RH |
6350 | } |
6351 | } | |
6352 | ||
6353 | /* Write out the section header names. */ | |
30e8ee25 | 6354 | t = elf_tdata (abfd); |
26ae6d5e | 6355 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6356 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6357 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6358 | return FALSE; |
252b5132 RH |
6359 | |
6360 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 6361 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 6362 | |
ff59fc36 RM |
6363 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6364 | return FALSE; | |
6365 | ||
6366 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6367 | if (t->o->build_id.after_write_object_contents != NULL) |
6368 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6369 | |
6370 | return TRUE; | |
252b5132 RH |
6371 | } |
6372 | ||
b34976b6 | 6373 | bfd_boolean |
217aa764 | 6374 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6375 | { |
c044fabd | 6376 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6377 | return _bfd_elf_write_object_contents (abfd); |
6378 | } | |
c044fabd KH |
6379 | |
6380 | /* Given a section, search the header to find them. */ | |
6381 | ||
cb33740c | 6382 | unsigned int |
198beae2 | 6383 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6384 | { |
9c5bfbb7 | 6385 | const struct elf_backend_data *bed; |
91d6fa6a | 6386 | unsigned int sec_index; |
252b5132 | 6387 | |
9ad5cbcf AM |
6388 | if (elf_section_data (asect) != NULL |
6389 | && elf_section_data (asect)->this_idx != 0) | |
6390 | return elf_section_data (asect)->this_idx; | |
6391 | ||
6392 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6393 | sec_index = SHN_ABS; |
af746e92 | 6394 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6395 | sec_index = SHN_COMMON; |
af746e92 | 6396 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6397 | sec_index = SHN_UNDEF; |
af746e92 | 6398 | else |
91d6fa6a | 6399 | sec_index = SHN_BAD; |
252b5132 | 6400 | |
af746e92 | 6401 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6402 | if (bed->elf_backend_section_from_bfd_section) |
6403 | { | |
91d6fa6a | 6404 | int retval = sec_index; |
9ad5cbcf | 6405 | |
af746e92 AM |
6406 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6407 | return retval; | |
252b5132 RH |
6408 | } |
6409 | ||
91d6fa6a | 6410 | if (sec_index == SHN_BAD) |
af746e92 | 6411 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6412 | |
91d6fa6a | 6413 | return sec_index; |
252b5132 RH |
6414 | } |
6415 | ||
6416 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6417 | on error. */ | |
6418 | ||
6419 | int | |
217aa764 | 6420 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6421 | { |
6422 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6423 | int idx; | |
6424 | flagword flags = asym_ptr->flags; | |
6425 | ||
6426 | /* When gas creates relocations against local labels, it creates its | |
6427 | own symbol for the section, but does put the symbol into the | |
6428 | symbol chain, so udata is 0. When the linker is generating | |
6429 | relocatable output, this section symbol may be for one of the | |
6430 | input sections rather than the output section. */ | |
6431 | if (asym_ptr->udata.i == 0 | |
6432 | && (flags & BSF_SECTION_SYM) | |
6433 | && asym_ptr->section) | |
6434 | { | |
5372391b | 6435 | asection *sec; |
252b5132 RH |
6436 | int indx; |
6437 | ||
5372391b AM |
6438 | sec = asym_ptr->section; |
6439 | if (sec->owner != abfd && sec->output_section != NULL) | |
6440 | sec = sec->output_section; | |
6441 | if (sec->owner == abfd | |
6442 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6443 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6444 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6445 | } | |
6446 | ||
6447 | idx = asym_ptr->udata.i; | |
6448 | ||
6449 | if (idx == 0) | |
6450 | { | |
6451 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6452 | which is used in a relocation entry. */ |
4eca0228 | 6453 | _bfd_error_handler |
695344c0 | 6454 | /* xgettext:c-format */ |
d003868e AM |
6455 | (_("%B: symbol `%s' required but not present"), |
6456 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
6457 | bfd_set_error (bfd_error_no_symbols); |
6458 | return -1; | |
6459 | } | |
6460 | ||
6461 | #if DEBUG & 4 | |
6462 | { | |
6463 | fprintf (stderr, | |
cd9af601 AM |
6464 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6465 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6466 | fflush (stderr); |
6467 | } | |
6468 | #endif | |
6469 | ||
6470 | return idx; | |
6471 | } | |
6472 | ||
84d1d650 | 6473 | /* Rewrite program header information. */ |
252b5132 | 6474 | |
b34976b6 | 6475 | static bfd_boolean |
84d1d650 | 6476 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6477 | { |
b34976b6 AM |
6478 | Elf_Internal_Ehdr *iehdr; |
6479 | struct elf_segment_map *map; | |
6480 | struct elf_segment_map *map_first; | |
6481 | struct elf_segment_map **pointer_to_map; | |
6482 | Elf_Internal_Phdr *segment; | |
6483 | asection *section; | |
6484 | unsigned int i; | |
6485 | unsigned int num_segments; | |
6486 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6487 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6488 | bfd_vma maxpagesize; |
6489 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6490 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6491 | const struct elf_backend_data *bed; |
bc67d8a6 | 6492 | |
caf47ea6 | 6493 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6494 | iehdr = elf_elfheader (ibfd); |
6495 | ||
bc67d8a6 | 6496 | map_first = NULL; |
c044fabd | 6497 | pointer_to_map = &map_first; |
252b5132 RH |
6498 | |
6499 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6500 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6501 | ||
6502 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6503 | #define SEGMENT_END(segment, start) \ |
6504 | (start + (segment->p_memsz > segment->p_filesz \ | |
6505 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6506 | |
eecdbe52 JJ |
6507 | #define SECTION_SIZE(section, segment) \ |
6508 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6509 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6510 | ? section->size : 0) |
eecdbe52 | 6511 | |
b34976b6 | 6512 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6513 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6514 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6515 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6516 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6517 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6518 | |
b34976b6 | 6519 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6520 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6521 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6522 | (section->lma >= base \ | |
eecdbe52 | 6523 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6524 | <= SEGMENT_END (segment, base))) |
252b5132 | 6525 | |
0efc80c8 L |
6526 | /* Handle PT_NOTE segment. */ |
6527 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6528 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6529 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6530 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6531 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6532 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6533 | |
0efc80c8 L |
6534 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6535 | etc. */ | |
6536 | #define IS_COREFILE_NOTE(p, s) \ | |
6537 | (IS_NOTE (p, s) \ | |
6538 | && bfd_get_format (ibfd) == bfd_core \ | |
6539 | && s->vma == 0 \ | |
6540 | && s->lma == 0) | |
6541 | ||
252b5132 RH |
6542 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6543 | linker, which generates a PT_INTERP section with p_vaddr and | |
6544 | p_memsz set to 0. */ | |
aecc8f8a AM |
6545 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6546 | (p->p_vaddr == 0 \ | |
6547 | && p->p_paddr == 0 \ | |
6548 | && p->p_memsz == 0 \ | |
6549 | && p->p_filesz > 0 \ | |
6550 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6551 | && s->size > 0 \ |
aecc8f8a | 6552 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6553 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6554 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6555 | |
bc67d8a6 NC |
6556 | /* Decide if the given section should be included in the given segment. |
6557 | A section will be included if: | |
f5ffc919 | 6558 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6559 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6560 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6561 | segment. |
bc67d8a6 | 6562 | 3. There is an output section associated with it, |
eecdbe52 | 6563 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6564 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6565 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6566 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6567 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6568 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6569 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6570 | ((((segment->p_paddr \ |
6571 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6572 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6573 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6574 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6575 | && segment->p_type != PT_GNU_STACK \ |
6576 | && (segment->p_type != PT_TLS \ | |
6577 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6578 | && (segment->p_type == PT_LOAD \ | |
6579 | || segment->p_type == PT_TLS \ | |
6580 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6581 | && (segment->p_type != PT_DYNAMIC \ | |
6582 | || SECTION_SIZE (section, segment) > 0 \ | |
6583 | || (segment->p_paddr \ | |
6584 | ? segment->p_paddr != section->lma \ | |
6585 | : segment->p_vaddr != section->vma) \ | |
6586 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6587 | == 0)) \ | |
0067a569 | 6588 | && !section->segment_mark) |
bc67d8a6 | 6589 | |
9f17e2a6 L |
6590 | /* If the output section of a section in the input segment is NULL, |
6591 | it is removed from the corresponding output segment. */ | |
6592 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6593 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6594 | && section->output_section != NULL) | |
6595 | ||
b34976b6 | 6596 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6597 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6598 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6599 | ||
6600 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6601 | their VMA address ranges and their LMA address ranges overlap. | |
6602 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6603 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6604 | to the same VMA range, but with the .data section mapped to a different | |
6605 | LMA. */ | |
aecc8f8a | 6606 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6607 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6608 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6609 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6610 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6611 | |
6612 | /* Initialise the segment mark field. */ | |
6613 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6614 | section->segment_mark = FALSE; |
bc67d8a6 | 6615 | |
5c44b38e AM |
6616 | /* The Solaris linker creates program headers in which all the |
6617 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6618 | file, we get confused. Check for this case, and if we find it | |
6619 | don't set the p_paddr_valid fields. */ | |
6620 | p_paddr_valid = FALSE; | |
6621 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6622 | i < num_segments; | |
6623 | i++, segment++) | |
6624 | if (segment->p_paddr != 0) | |
6625 | { | |
6626 | p_paddr_valid = TRUE; | |
6627 | break; | |
6628 | } | |
6629 | ||
252b5132 | 6630 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6631 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6632 | in the loadable segments. These can be created by weird |
aecc8f8a | 6633 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6634 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6635 | i < num_segments; | |
c044fabd | 6636 | i++, segment++) |
252b5132 | 6637 | { |
252b5132 | 6638 | unsigned int j; |
c044fabd | 6639 | Elf_Internal_Phdr *segment2; |
252b5132 | 6640 | |
aecc8f8a AM |
6641 | if (segment->p_type == PT_INTERP) |
6642 | for (section = ibfd->sections; section; section = section->next) | |
6643 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6644 | { | |
6645 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6646 | assignment code will work. */ |
aecc8f8a AM |
6647 | segment->p_vaddr = section->vma; |
6648 | break; | |
6649 | } | |
6650 | ||
bc67d8a6 | 6651 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6652 | { |
6653 | /* Remove PT_GNU_RELRO segment. */ | |
6654 | if (segment->p_type == PT_GNU_RELRO) | |
6655 | segment->p_type = PT_NULL; | |
6656 | continue; | |
6657 | } | |
c044fabd | 6658 | |
bc67d8a6 | 6659 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6660 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6661 | { |
6662 | bfd_signed_vma extra_length; | |
c044fabd | 6663 | |
bc67d8a6 | 6664 | if (segment2->p_type != PT_LOAD |
0067a569 | 6665 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6666 | continue; |
c044fabd | 6667 | |
bc67d8a6 NC |
6668 | /* Merge the two segments together. */ |
6669 | if (segment2->p_vaddr < segment->p_vaddr) | |
6670 | { | |
c044fabd | 6671 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6672 | SEGMENT. */ |
0067a569 AM |
6673 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6674 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6675 | |
bc67d8a6 NC |
6676 | if (extra_length > 0) |
6677 | { | |
0067a569 | 6678 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6679 | segment2->p_filesz += extra_length; |
6680 | } | |
c044fabd | 6681 | |
bc67d8a6 | 6682 | segment->p_type = PT_NULL; |
c044fabd | 6683 | |
bc67d8a6 NC |
6684 | /* Since we have deleted P we must restart the outer loop. */ |
6685 | i = 0; | |
6686 | segment = elf_tdata (ibfd)->phdr; | |
6687 | break; | |
6688 | } | |
6689 | else | |
6690 | { | |
c044fabd | 6691 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6692 | SEGMENT2. */ |
0067a569 AM |
6693 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6694 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6695 | |
bc67d8a6 NC |
6696 | if (extra_length > 0) |
6697 | { | |
0067a569 | 6698 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6699 | segment->p_filesz += extra_length; |
6700 | } | |
c044fabd | 6701 | |
bc67d8a6 NC |
6702 | segment2->p_type = PT_NULL; |
6703 | } | |
6704 | } | |
6705 | } | |
c044fabd | 6706 | |
bc67d8a6 NC |
6707 | /* The second scan attempts to assign sections to segments. */ |
6708 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6709 | i < num_segments; | |
0067a569 | 6710 | i++, segment++) |
bc67d8a6 | 6711 | { |
0067a569 AM |
6712 | unsigned int section_count; |
6713 | asection **sections; | |
6714 | asection *output_section; | |
6715 | unsigned int isec; | |
6716 | bfd_vma matching_lma; | |
6717 | bfd_vma suggested_lma; | |
6718 | unsigned int j; | |
dc810e39 | 6719 | bfd_size_type amt; |
0067a569 AM |
6720 | asection *first_section; |
6721 | bfd_boolean first_matching_lma; | |
6722 | bfd_boolean first_suggested_lma; | |
bc67d8a6 NC |
6723 | |
6724 | if (segment->p_type == PT_NULL) | |
6725 | continue; | |
c044fabd | 6726 | |
9f17e2a6 | 6727 | first_section = NULL; |
bc67d8a6 | 6728 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6729 | for (section = ibfd->sections, section_count = 0; |
6730 | section != NULL; | |
6731 | section = section->next) | |
9f17e2a6 L |
6732 | { |
6733 | /* Find the first section in the input segment, which may be | |
6734 | removed from the corresponding output segment. */ | |
6735 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6736 | { | |
6737 | if (first_section == NULL) | |
6738 | first_section = section; | |
6739 | if (section->output_section != NULL) | |
6740 | ++section_count; | |
6741 | } | |
6742 | } | |
811072d8 | 6743 | |
b5f852ea NC |
6744 | /* Allocate a segment map big enough to contain |
6745 | all of the sections we have selected. */ | |
dc810e39 AM |
6746 | amt = sizeof (struct elf_segment_map); |
6747 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6748 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6749 | if (map == NULL) |
b34976b6 | 6750 | return FALSE; |
252b5132 RH |
6751 | |
6752 | /* Initialise the fields of the segment map. Default to | |
6753 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
6754 | map->next = NULL; |
6755 | map->p_type = segment->p_type; | |
6756 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 6757 | map->p_flags_valid = 1; |
55d55ac7 | 6758 | |
9f17e2a6 L |
6759 | /* If the first section in the input segment is removed, there is |
6760 | no need to preserve segment physical address in the corresponding | |
6761 | output segment. */ | |
945c025a | 6762 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
6763 | { |
6764 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 6765 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 6766 | } |
252b5132 RH |
6767 | |
6768 | /* Determine if this segment contains the ELF file header | |
6769 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
6770 | map->includes_filehdr = (segment->p_offset == 0 |
6771 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 6772 | map->includes_phdrs = 0; |
252b5132 | 6773 | |
0067a569 | 6774 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 6775 | { |
bc67d8a6 NC |
6776 | map->includes_phdrs = |
6777 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6778 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
6779 | >= ((bfd_vma) iehdr->e_phoff |
6780 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 6781 | |
bc67d8a6 | 6782 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 6783 | phdr_included = TRUE; |
252b5132 RH |
6784 | } |
6785 | ||
bc67d8a6 | 6786 | if (section_count == 0) |
252b5132 RH |
6787 | { |
6788 | /* Special segments, such as the PT_PHDR segment, may contain | |
6789 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 6790 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 6791 | a warning is produced. |
f98450c6 NC |
6792 | There is however the valid use case of embedded systems which |
6793 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
6794 | flash memory with zeros. No warning is shown for that case. */ | |
6795 | if (segment->p_type == PT_LOAD | |
6796 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
6797 | /* xgettext:c-format */ | |
76cfced5 AM |
6798 | _bfd_error_handler (_("%B: warning: Empty loadable segment detected" |
6799 | " at vaddr=%#Lx, is this intentional?"), | |
f98450c6 | 6800 | ibfd, segment->p_vaddr); |
252b5132 | 6801 | |
bc67d8a6 | 6802 | map->count = 0; |
c044fabd KH |
6803 | *pointer_to_map = map; |
6804 | pointer_to_map = &map->next; | |
252b5132 RH |
6805 | |
6806 | continue; | |
6807 | } | |
6808 | ||
6809 | /* Now scan the sections in the input BFD again and attempt | |
6810 | to add their corresponding output sections to the segment map. | |
6811 | The problem here is how to handle an output section which has | |
6812 | been moved (ie had its LMA changed). There are four possibilities: | |
6813 | ||
6814 | 1. None of the sections have been moved. | |
6815 | In this case we can continue to use the segment LMA from the | |
6816 | input BFD. | |
6817 | ||
6818 | 2. All of the sections have been moved by the same amount. | |
6819 | In this case we can change the segment's LMA to match the LMA | |
6820 | of the first section. | |
6821 | ||
6822 | 3. Some of the sections have been moved, others have not. | |
6823 | In this case those sections which have not been moved can be | |
6824 | placed in the current segment which will have to have its size, | |
6825 | and possibly its LMA changed, and a new segment or segments will | |
6826 | have to be created to contain the other sections. | |
6827 | ||
b5f852ea | 6828 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
6829 | In this case we can change the segment's LMA to match the LMA |
6830 | of the first section and we will have to create a new segment | |
6831 | or segments to contain the other sections. | |
6832 | ||
6833 | In order to save time, we allocate an array to hold the section | |
6834 | pointers that we are interested in. As these sections get assigned | |
6835 | to a segment, they are removed from this array. */ | |
6836 | ||
a50b1753 | 6837 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 6838 | if (sections == NULL) |
b34976b6 | 6839 | return FALSE; |
252b5132 RH |
6840 | |
6841 | /* Step One: Scan for segment vs section LMA conflicts. | |
6842 | Also add the sections to the section array allocated above. | |
6843 | Also add the sections to the current segment. In the common | |
6844 | case, where the sections have not been moved, this means that | |
6845 | we have completely filled the segment, and there is nothing | |
6846 | more to do. */ | |
252b5132 | 6847 | isec = 0; |
72730e0c | 6848 | matching_lma = 0; |
252b5132 | 6849 | suggested_lma = 0; |
0067a569 AM |
6850 | first_matching_lma = TRUE; |
6851 | first_suggested_lma = TRUE; | |
252b5132 | 6852 | |
461c4b2e | 6853 | for (section = first_section, j = 0; |
bc67d8a6 NC |
6854 | section != NULL; |
6855 | section = section->next) | |
252b5132 | 6856 | { |
caf47ea6 | 6857 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 6858 | { |
bc67d8a6 NC |
6859 | output_section = section->output_section; |
6860 | ||
0067a569 | 6861 | sections[j++] = section; |
252b5132 RH |
6862 | |
6863 | /* The Solaris native linker always sets p_paddr to 0. | |
6864 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
6865 | correct value. Note - some backends require that |
6866 | p_paddr be left as zero. */ | |
5c44b38e | 6867 | if (!p_paddr_valid |
4455705d | 6868 | && segment->p_vaddr != 0 |
0067a569 | 6869 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 6870 | && isec == 0 |
bc67d8a6 | 6871 | && output_section->lma != 0 |
0067a569 AM |
6872 | && output_section->vma == (segment->p_vaddr |
6873 | + (map->includes_filehdr | |
6874 | ? iehdr->e_ehsize | |
6875 | : 0) | |
6876 | + (map->includes_phdrs | |
6877 | ? (iehdr->e_phnum | |
6878 | * iehdr->e_phentsize) | |
6879 | : 0))) | |
bc67d8a6 | 6880 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
6881 | |
6882 | /* Match up the physical address of the segment with the | |
6883 | LMA address of the output section. */ | |
bc67d8a6 | 6884 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 6885 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
6886 | || (bed->want_p_paddr_set_to_zero |
6887 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 6888 | { |
0067a569 AM |
6889 | if (first_matching_lma || output_section->lma < matching_lma) |
6890 | { | |
6891 | matching_lma = output_section->lma; | |
6892 | first_matching_lma = FALSE; | |
6893 | } | |
252b5132 RH |
6894 | |
6895 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 6896 | then it does not overlap any other section within that |
252b5132 | 6897 | segment. */ |
0067a569 AM |
6898 | map->sections[isec++] = output_section; |
6899 | } | |
6900 | else if (first_suggested_lma) | |
6901 | { | |
6902 | suggested_lma = output_section->lma; | |
6903 | first_suggested_lma = FALSE; | |
252b5132 | 6904 | } |
147d51c2 L |
6905 | |
6906 | if (j == section_count) | |
6907 | break; | |
252b5132 RH |
6908 | } |
6909 | } | |
6910 | ||
bc67d8a6 | 6911 | BFD_ASSERT (j == section_count); |
252b5132 RH |
6912 | |
6913 | /* Step Two: Adjust the physical address of the current segment, | |
6914 | if necessary. */ | |
bc67d8a6 | 6915 | if (isec == section_count) |
252b5132 RH |
6916 | { |
6917 | /* All of the sections fitted within the segment as currently | |
6918 | specified. This is the default case. Add the segment to | |
6919 | the list of built segments and carry on to process the next | |
6920 | program header in the input BFD. */ | |
bc67d8a6 | 6921 | map->count = section_count; |
c044fabd KH |
6922 | *pointer_to_map = map; |
6923 | pointer_to_map = &map->next; | |
08a40648 | 6924 | |
5c44b38e AM |
6925 | if (p_paddr_valid |
6926 | && !bed->want_p_paddr_set_to_zero | |
147d51c2 | 6927 | && matching_lma != map->p_paddr |
5c44b38e AM |
6928 | && !map->includes_filehdr |
6929 | && !map->includes_phdrs) | |
3271a814 NS |
6930 | /* There is some padding before the first section in the |
6931 | segment. So, we must account for that in the output | |
6932 | segment's vma. */ | |
6933 | map->p_vaddr_offset = matching_lma - map->p_paddr; | |
08a40648 | 6934 | |
252b5132 RH |
6935 | free (sections); |
6936 | continue; | |
6937 | } | |
252b5132 RH |
6938 | else |
6939 | { | |
0067a569 | 6940 | if (!first_matching_lma) |
72730e0c AM |
6941 | { |
6942 | /* At least one section fits inside the current segment. | |
6943 | Keep it, but modify its physical address to match the | |
6944 | LMA of the first section that fitted. */ | |
bc67d8a6 | 6945 | map->p_paddr = matching_lma; |
72730e0c AM |
6946 | } |
6947 | else | |
6948 | { | |
6949 | /* None of the sections fitted inside the current segment. | |
6950 | Change the current segment's physical address to match | |
6951 | the LMA of the first section. */ | |
bc67d8a6 | 6952 | map->p_paddr = suggested_lma; |
72730e0c AM |
6953 | } |
6954 | ||
bc67d8a6 NC |
6955 | /* Offset the segment physical address from the lma |
6956 | to allow for space taken up by elf headers. */ | |
6957 | if (map->includes_filehdr) | |
010c8431 AM |
6958 | { |
6959 | if (map->p_paddr >= iehdr->e_ehsize) | |
6960 | map->p_paddr -= iehdr->e_ehsize; | |
6961 | else | |
6962 | { | |
6963 | map->includes_filehdr = FALSE; | |
6964 | map->includes_phdrs = FALSE; | |
6965 | } | |
6966 | } | |
252b5132 | 6967 | |
bc67d8a6 NC |
6968 | if (map->includes_phdrs) |
6969 | { | |
010c8431 AM |
6970 | if (map->p_paddr >= iehdr->e_phnum * iehdr->e_phentsize) |
6971 | { | |
6972 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
6973 | ||
6974 | /* iehdr->e_phnum is just an estimate of the number | |
6975 | of program headers that we will need. Make a note | |
6976 | here of the number we used and the segment we chose | |
6977 | to hold these headers, so that we can adjust the | |
6978 | offset when we know the correct value. */ | |
6979 | phdr_adjust_num = iehdr->e_phnum; | |
6980 | phdr_adjust_seg = map; | |
6981 | } | |
6982 | else | |
6983 | map->includes_phdrs = FALSE; | |
bc67d8a6 | 6984 | } |
252b5132 RH |
6985 | } |
6986 | ||
6987 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 6988 | those that fit to the current segment and removing them from the |
252b5132 RH |
6989 | sections array; but making sure not to leave large gaps. Once all |
6990 | possible sections have been assigned to the current segment it is | |
6991 | added to the list of built segments and if sections still remain | |
6992 | to be assigned, a new segment is constructed before repeating | |
6993 | the loop. */ | |
6994 | isec = 0; | |
6995 | do | |
6996 | { | |
bc67d8a6 | 6997 | map->count = 0; |
252b5132 | 6998 | suggested_lma = 0; |
0067a569 | 6999 | first_suggested_lma = TRUE; |
252b5132 RH |
7000 | |
7001 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7002 | for (j = 0; j < section_count; j++) |
252b5132 | 7003 | { |
bc67d8a6 | 7004 | section = sections[j]; |
252b5132 | 7005 | |
bc67d8a6 | 7006 | if (section == NULL) |
252b5132 RH |
7007 | continue; |
7008 | ||
bc67d8a6 | 7009 | output_section = section->output_section; |
252b5132 | 7010 | |
bc67d8a6 | 7011 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7012 | |
bc67d8a6 NC |
7013 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7014 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7015 | { |
bc67d8a6 | 7016 | if (map->count == 0) |
252b5132 RH |
7017 | { |
7018 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7019 | the beginning of the segment, then something is |
7020 | wrong. */ | |
0067a569 AM |
7021 | if (output_section->lma |
7022 | != (map->p_paddr | |
7023 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
7024 | + (map->includes_phdrs | |
7025 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7026 | : 0))) | |
252b5132 RH |
7027 | abort (); |
7028 | } | |
7029 | else | |
7030 | { | |
0067a569 | 7031 | asection *prev_sec; |
252b5132 | 7032 | |
bc67d8a6 | 7033 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7034 | |
7035 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7036 | and the start of this section is more than |
7037 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7038 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7039 | maxpagesize) |
caf47ea6 | 7040 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7041 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7042 | > output_section->lma)) |
252b5132 | 7043 | { |
0067a569 AM |
7044 | if (first_suggested_lma) |
7045 | { | |
7046 | suggested_lma = output_section->lma; | |
7047 | first_suggested_lma = FALSE; | |
7048 | } | |
252b5132 RH |
7049 | |
7050 | continue; | |
7051 | } | |
7052 | } | |
7053 | ||
bc67d8a6 | 7054 | map->sections[map->count++] = output_section; |
252b5132 RH |
7055 | ++isec; |
7056 | sections[j] = NULL; | |
b34976b6 | 7057 | section->segment_mark = TRUE; |
252b5132 | 7058 | } |
0067a569 AM |
7059 | else if (first_suggested_lma) |
7060 | { | |
7061 | suggested_lma = output_section->lma; | |
7062 | first_suggested_lma = FALSE; | |
7063 | } | |
252b5132 RH |
7064 | } |
7065 | ||
bc67d8a6 | 7066 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
7067 | |
7068 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7069 | *pointer_to_map = map; |
7070 | pointer_to_map = &map->next; | |
252b5132 | 7071 | |
bc67d8a6 | 7072 | if (isec < section_count) |
252b5132 RH |
7073 | { |
7074 | /* We still have not allocated all of the sections to | |
7075 | segments. Create a new segment here, initialise it | |
7076 | and carry on looping. */ | |
dc810e39 AM |
7077 | amt = sizeof (struct elf_segment_map); |
7078 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 7079 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7080 | if (map == NULL) |
5ed6aba4 NC |
7081 | { |
7082 | free (sections); | |
7083 | return FALSE; | |
7084 | } | |
252b5132 RH |
7085 | |
7086 | /* Initialise the fields of the segment map. Set the physical | |
7087 | physical address to the LMA of the first section that has | |
7088 | not yet been assigned. */ | |
0067a569 AM |
7089 | map->next = NULL; |
7090 | map->p_type = segment->p_type; | |
7091 | map->p_flags = segment->p_flags; | |
7092 | map->p_flags_valid = 1; | |
7093 | map->p_paddr = suggested_lma; | |
5c44b38e | 7094 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7095 | map->includes_filehdr = 0; |
0067a569 | 7096 | map->includes_phdrs = 0; |
252b5132 RH |
7097 | } |
7098 | } | |
bc67d8a6 | 7099 | while (isec < section_count); |
252b5132 RH |
7100 | |
7101 | free (sections); | |
7102 | } | |
7103 | ||
12bd6957 | 7104 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7105 | |
7106 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7107 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7108 | the offset if necessary. */ |
7109 | if (phdr_adjust_seg != NULL) | |
7110 | { | |
7111 | unsigned int count; | |
c044fabd | 7112 | |
bc67d8a6 | 7113 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7114 | count++; |
252b5132 | 7115 | |
bc67d8a6 NC |
7116 | if (count > phdr_adjust_num) |
7117 | phdr_adjust_seg->p_paddr | |
7118 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
7119 | } | |
c044fabd | 7120 | |
bc67d8a6 | 7121 | #undef SEGMENT_END |
eecdbe52 | 7122 | #undef SECTION_SIZE |
bc67d8a6 NC |
7123 | #undef IS_CONTAINED_BY_VMA |
7124 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7125 | #undef IS_NOTE |
252b5132 | 7126 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7127 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7128 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7129 | #undef INCLUDE_SECTION_IN_SEGMENT |
7130 | #undef SEGMENT_AFTER_SEGMENT | |
7131 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7132 | return TRUE; |
252b5132 RH |
7133 | } |
7134 | ||
84d1d650 L |
7135 | /* Copy ELF program header information. */ |
7136 | ||
7137 | static bfd_boolean | |
7138 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7139 | { | |
7140 | Elf_Internal_Ehdr *iehdr; | |
7141 | struct elf_segment_map *map; | |
7142 | struct elf_segment_map *map_first; | |
7143 | struct elf_segment_map **pointer_to_map; | |
7144 | Elf_Internal_Phdr *segment; | |
7145 | unsigned int i; | |
7146 | unsigned int num_segments; | |
7147 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7148 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7149 | |
7150 | iehdr = elf_elfheader (ibfd); | |
7151 | ||
7152 | map_first = NULL; | |
7153 | pointer_to_map = &map_first; | |
7154 | ||
88967714 AM |
7155 | /* If all the segment p_paddr fields are zero, don't set |
7156 | map->p_paddr_valid. */ | |
7157 | p_paddr_valid = FALSE; | |
84d1d650 | 7158 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7159 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7160 | i < num_segments; | |
7161 | i++, segment++) | |
7162 | if (segment->p_paddr != 0) | |
7163 | { | |
7164 | p_paddr_valid = TRUE; | |
7165 | break; | |
7166 | } | |
7167 | ||
84d1d650 L |
7168 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7169 | i < num_segments; | |
7170 | i++, segment++) | |
7171 | { | |
7172 | asection *section; | |
7173 | unsigned int section_count; | |
7174 | bfd_size_type amt; | |
7175 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7176 | asection *first_section = NULL; |
a76e6f2f | 7177 | asection *lowest_section; |
84d1d650 | 7178 | |
84d1d650 L |
7179 | /* Compute how many sections are in this segment. */ |
7180 | for (section = ibfd->sections, section_count = 0; | |
7181 | section != NULL; | |
7182 | section = section->next) | |
7183 | { | |
7184 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7185 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7186 | { |
a76e6f2f AM |
7187 | if (first_section == NULL) |
7188 | first_section = section; | |
3271a814 NS |
7189 | section_count++; |
7190 | } | |
84d1d650 L |
7191 | } |
7192 | ||
7193 | /* Allocate a segment map big enough to contain | |
7194 | all of the sections we have selected. */ | |
7195 | amt = sizeof (struct elf_segment_map); | |
7196 | if (section_count != 0) | |
7197 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 7198 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7199 | if (map == NULL) |
7200 | return FALSE; | |
7201 | ||
7202 | /* Initialize the fields of the output segment map with the | |
7203 | input segment. */ | |
7204 | map->next = NULL; | |
7205 | map->p_type = segment->p_type; | |
7206 | map->p_flags = segment->p_flags; | |
7207 | map->p_flags_valid = 1; | |
7208 | map->p_paddr = segment->p_paddr; | |
88967714 | 7209 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7210 | map->p_align = segment->p_align; |
7211 | map->p_align_valid = 1; | |
3271a814 | 7212 | map->p_vaddr_offset = 0; |
84d1d650 | 7213 | |
04c3a755 NS |
7214 | if (map->p_type == PT_GNU_RELRO |
7215 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7216 | { |
7217 | /* The PT_GNU_RELRO segment may contain the first a few | |
7218 | bytes in the .got.plt section even if the whole .got.plt | |
7219 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7220 | change the size of the PT_GNU_RELRO segment. |
7221 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7222 | systems. */ | |
9433b9b1 | 7223 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7224 | map->p_size_valid = 1; |
7225 | } | |
7226 | ||
84d1d650 L |
7227 | /* Determine if this segment contains the ELF file header |
7228 | and if it contains the program headers themselves. */ | |
7229 | map->includes_filehdr = (segment->p_offset == 0 | |
7230 | && segment->p_filesz >= iehdr->e_ehsize); | |
7231 | ||
7232 | map->includes_phdrs = 0; | |
7233 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7234 | { | |
7235 | map->includes_phdrs = | |
7236 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7237 | && (segment->p_offset + segment->p_filesz | |
7238 | >= ((bfd_vma) iehdr->e_phoff | |
7239 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7240 | ||
7241 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7242 | phdr_included = TRUE; | |
7243 | } | |
7244 | ||
bbefd0a9 | 7245 | lowest_section = NULL; |
84d1d650 L |
7246 | if (section_count != 0) |
7247 | { | |
7248 | unsigned int isec = 0; | |
7249 | ||
53020534 | 7250 | for (section = first_section; |
84d1d650 L |
7251 | section != NULL; |
7252 | section = section->next) | |
7253 | { | |
7254 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7255 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7256 | { |
7257 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7258 | if ((section->flags & SEC_ALLOC) != 0) |
7259 | { | |
7260 | bfd_vma seg_off; | |
7261 | ||
bbefd0a9 AM |
7262 | if (lowest_section == NULL |
7263 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7264 | lowest_section = section; |
7265 | ||
a76e6f2f AM |
7266 | /* Section lmas are set up from PT_LOAD header |
7267 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7268 | If this header has a p_paddr that disagrees | |
7269 | with the section lma, flag the p_paddr as | |
7270 | invalid. */ | |
7271 | if ((section->flags & SEC_LOAD) != 0) | |
7272 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7273 | else | |
7274 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7275 | if (section->lma - segment->p_paddr != seg_off) | |
7276 | map->p_paddr_valid = FALSE; | |
7277 | } | |
53020534 L |
7278 | if (isec == section_count) |
7279 | break; | |
7280 | } | |
84d1d650 L |
7281 | } |
7282 | } | |
7283 | ||
a76e6f2f AM |
7284 | if (map->includes_filehdr && lowest_section != NULL) |
7285 | /* We need to keep the space used by the headers fixed. */ | |
7286 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 7287 | |
a76e6f2f AM |
7288 | if (!map->includes_phdrs |
7289 | && !map->includes_filehdr | |
7290 | && map->p_paddr_valid) | |
7291 | /* There is some other padding before the first section. */ | |
7292 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
7293 | - segment->p_paddr); | |
7294 | ||
84d1d650 L |
7295 | map->count = section_count; |
7296 | *pointer_to_map = map; | |
7297 | pointer_to_map = &map->next; | |
7298 | } | |
7299 | ||
12bd6957 | 7300 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7301 | return TRUE; |
7302 | } | |
7303 | ||
7304 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7305 | information. */ | |
7306 | ||
7307 | static bfd_boolean | |
7308 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7309 | { | |
84d1d650 L |
7310 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7311 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7312 | return TRUE; | |
7313 | ||
7314 | if (elf_tdata (ibfd)->phdr == NULL) | |
7315 | return TRUE; | |
7316 | ||
7317 | if (ibfd->xvec == obfd->xvec) | |
7318 | { | |
cb3ff1e5 NC |
7319 | /* Check to see if any sections in the input BFD |
7320 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7321 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7322 | asection *section, *osec; |
7323 | unsigned int i, num_segments; | |
7324 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7325 | const struct elf_backend_data *bed; |
7326 | ||
7327 | bed = get_elf_backend_data (ibfd); | |
7328 | ||
7329 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7330 | if (bed->want_p_paddr_set_to_zero) | |
7331 | goto rewrite; | |
84d1d650 L |
7332 | |
7333 | /* Initialize the segment mark field. */ | |
7334 | for (section = obfd->sections; section != NULL; | |
7335 | section = section->next) | |
7336 | section->segment_mark = FALSE; | |
7337 | ||
7338 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7339 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7340 | i < num_segments; | |
7341 | i++, segment++) | |
7342 | { | |
5f6999aa NC |
7343 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7344 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7345 | which severly confuses things, so always regenerate the segment | |
7346 | map in this case. */ | |
7347 | if (segment->p_paddr == 0 | |
7348 | && segment->p_memsz == 0 | |
7349 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7350 | goto rewrite; |
5f6999aa | 7351 | |
84d1d650 L |
7352 | for (section = ibfd->sections; |
7353 | section != NULL; section = section->next) | |
7354 | { | |
7355 | /* We mark the output section so that we know it comes | |
7356 | from the input BFD. */ | |
7357 | osec = section->output_section; | |
7358 | if (osec) | |
7359 | osec->segment_mark = TRUE; | |
7360 | ||
7361 | /* Check if this section is covered by the segment. */ | |
7362 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7363 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7364 | { |
7365 | /* FIXME: Check if its output section is changed or | |
7366 | removed. What else do we need to check? */ | |
7367 | if (osec == NULL | |
7368 | || section->flags != osec->flags | |
7369 | || section->lma != osec->lma | |
7370 | || section->vma != osec->vma | |
7371 | || section->size != osec->size | |
7372 | || section->rawsize != osec->rawsize | |
7373 | || section->alignment_power != osec->alignment_power) | |
7374 | goto rewrite; | |
7375 | } | |
7376 | } | |
7377 | } | |
7378 | ||
cb3ff1e5 | 7379 | /* Check to see if any output section do not come from the |
84d1d650 L |
7380 | input BFD. */ |
7381 | for (section = obfd->sections; section != NULL; | |
7382 | section = section->next) | |
7383 | { | |
535b785f | 7384 | if (!section->segment_mark) |
84d1d650 L |
7385 | goto rewrite; |
7386 | else | |
7387 | section->segment_mark = FALSE; | |
7388 | } | |
7389 | ||
7390 | return copy_elf_program_header (ibfd, obfd); | |
7391 | } | |
7392 | ||
7393 | rewrite: | |
f1d85785 L |
7394 | if (ibfd->xvec == obfd->xvec) |
7395 | { | |
7396 | /* When rewriting program header, set the output maxpagesize to | |
7397 | the maximum alignment of input PT_LOAD segments. */ | |
7398 | Elf_Internal_Phdr *segment; | |
7399 | unsigned int i; | |
7400 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7401 | bfd_vma maxpagesize = 0; | |
7402 | ||
7403 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7404 | i < num_segments; | |
7405 | i++, segment++) | |
7406 | if (segment->p_type == PT_LOAD | |
7407 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7408 | { |
7409 | /* PR 17512: file: f17299af. */ | |
7410 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7411 | /* xgettext:c-format */ |
76cfced5 AM |
7412 | _bfd_error_handler (_("%B: warning: segment alignment of %#Lx" |
7413 | " is too large"), | |
7414 | ibfd, segment->p_align); | |
c86934ce NC |
7415 | else |
7416 | maxpagesize = segment->p_align; | |
7417 | } | |
f1d85785 L |
7418 | |
7419 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7420 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7421 | } | |
7422 | ||
84d1d650 L |
7423 | return rewrite_elf_program_header (ibfd, obfd); |
7424 | } | |
7425 | ||
ccd2ec6a L |
7426 | /* Initialize private output section information from input section. */ |
7427 | ||
7428 | bfd_boolean | |
7429 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7430 | asection *isec, | |
7431 | bfd *obfd, | |
7432 | asection *osec, | |
7433 | struct bfd_link_info *link_info) | |
7434 | ||
7435 | { | |
7436 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7437 | bfd_boolean final_link = (link_info != NULL |
7438 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7439 | |
7440 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7441 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7442 | return TRUE; | |
7443 | ||
ba85c43e NC |
7444 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7445 | ||
dfa7b0b8 AM |
7446 | /* For objcopy and relocatable link, don't copy the output ELF |
7447 | section type from input if the output BFD section flags have been | |
7448 | set to something different. For a final link allow some flags | |
7449 | that the linker clears to differ. */ | |
42bb2e33 | 7450 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7451 | && (osec->flags == isec->flags |
7452 | || (final_link | |
7453 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7454 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7455 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7456 | |
7457 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7458 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7459 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7460 | |
a91e1603 L |
7461 | /* Copy sh_info from input for mbind section. */ |
7462 | if (elf_section_flags (isec) & SHF_GNU_MBIND) | |
7463 | elf_section_data (osec)->this_hdr.sh_info | |
7464 | = elf_section_data (isec)->this_hdr.sh_info; | |
7465 | ||
ccd2ec6a L |
7466 | /* Set things up for objcopy and relocatable link. The output |
7467 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7468 | to the input group members. Ignore linker created group section. | |
7469 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7470 | if ((link_info == NULL |
7471 | || !link_info->resolve_section_groups) | |
7472 | && (elf_sec_group (isec) == NULL | |
7473 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7474 | { |
7bdf4127 AB |
7475 | if (elf_section_flags (isec) & SHF_GROUP) |
7476 | elf_section_flags (osec) |= SHF_GROUP; | |
7477 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7478 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7479 | } |
7480 | ||
7bdf4127 AB |
7481 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7482 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7483 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7484 | & SHF_COMPRESSED); | |
7485 | ||
ccd2ec6a L |
7486 | ihdr = &elf_section_data (isec)->this_hdr; |
7487 | ||
7488 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7489 | don't use the output section of the linked-to section since it | |
7490 | may be NULL at this point. */ | |
7491 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7492 | { | |
7493 | ohdr = &elf_section_data (osec)->this_hdr; | |
7494 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7495 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7496 | } | |
7497 | ||
7498 | osec->use_rela_p = isec->use_rela_p; | |
7499 | ||
7500 | return TRUE; | |
7501 | } | |
7502 | ||
252b5132 RH |
7503 | /* Copy private section information. This copies over the entsize |
7504 | field, and sometimes the info field. */ | |
7505 | ||
b34976b6 | 7506 | bfd_boolean |
217aa764 AM |
7507 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7508 | asection *isec, | |
7509 | bfd *obfd, | |
7510 | asection *osec) | |
252b5132 RH |
7511 | { |
7512 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7513 | ||
7514 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7515 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7516 | return TRUE; |
252b5132 | 7517 | |
252b5132 RH |
7518 | ihdr = &elf_section_data (isec)->this_hdr; |
7519 | ohdr = &elf_section_data (osec)->this_hdr; | |
7520 | ||
7521 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7522 | ||
7523 | if (ihdr->sh_type == SHT_SYMTAB | |
7524 | || ihdr->sh_type == SHT_DYNSYM | |
7525 | || ihdr->sh_type == SHT_GNU_verneed | |
7526 | || ihdr->sh_type == SHT_GNU_verdef) | |
7527 | ohdr->sh_info = ihdr->sh_info; | |
7528 | ||
ccd2ec6a L |
7529 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7530 | NULL); | |
252b5132 RH |
7531 | } |
7532 | ||
d0bf826b AM |
7533 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7534 | necessary if we are removing either the SHT_GROUP section or any of | |
7535 | the group member sections. DISCARDED is the value that a section's | |
7536 | output_section has if the section will be discarded, NULL when this | |
7537 | function is called from objcopy, bfd_abs_section_ptr when called | |
7538 | from the linker. */ | |
80fccad2 BW |
7539 | |
7540 | bfd_boolean | |
d0bf826b | 7541 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7542 | { |
30288845 AM |
7543 | asection *isec; |
7544 | ||
30288845 | 7545 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7546 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7547 | { |
7548 | asection *first = elf_next_in_group (isec); | |
7549 | asection *s = first; | |
d0bf826b AM |
7550 | bfd_size_type removed = 0; |
7551 | ||
30288845 AM |
7552 | while (s != NULL) |
7553 | { | |
415f38a6 AM |
7554 | /* If this member section is being output but the |
7555 | SHT_GROUP section is not, then clear the group info | |
7556 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7557 | if (s->output_section != discarded |
7558 | && isec->output_section == discarded) | |
30288845 AM |
7559 | { |
7560 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7561 | elf_group_name (s->output_section) = NULL; | |
7562 | } | |
415f38a6 AM |
7563 | /* Conversely, if the member section is not being output |
7564 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7565 | else if (s->output_section == discarded |
7566 | && isec->output_section != discarded) | |
7567 | removed += 4; | |
30288845 AM |
7568 | s = elf_next_in_group (s); |
7569 | if (s == first) | |
7570 | break; | |
7571 | } | |
d0bf826b AM |
7572 | if (removed != 0) |
7573 | { | |
7574 | if (discarded != NULL) | |
7575 | { | |
7576 | /* If we've been called for ld -r, then we need to | |
7577 | adjust the input section size. This function may | |
7578 | be called multiple times, so save the original | |
7579 | size. */ | |
7580 | if (isec->rawsize == 0) | |
7581 | isec->rawsize = isec->size; | |
7582 | isec->size = isec->rawsize - removed; | |
7583 | } | |
7584 | else | |
7585 | { | |
7586 | /* Adjust the output section size when called from | |
7587 | objcopy. */ | |
7588 | isec->output_section->size -= removed; | |
7589 | } | |
7590 | } | |
30288845 AM |
7591 | } |
7592 | ||
80fccad2 BW |
7593 | return TRUE; |
7594 | } | |
7595 | ||
d0bf826b AM |
7596 | /* Copy private header information. */ |
7597 | ||
7598 | bfd_boolean | |
7599 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7600 | { | |
7601 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7602 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7603 | return TRUE; | |
7604 | ||
7605 | /* Copy over private BFD data if it has not already been copied. | |
7606 | This must be done here, rather than in the copy_private_bfd_data | |
7607 | entry point, because the latter is called after the section | |
7608 | contents have been set, which means that the program headers have | |
7609 | already been worked out. */ | |
12bd6957 | 7610 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7611 | { |
7612 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7613 | return FALSE; | |
7614 | } | |
7615 | ||
7616 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7617 | } | |
7618 | ||
252b5132 RH |
7619 | /* Copy private symbol information. If this symbol is in a section |
7620 | which we did not map into a BFD section, try to map the section | |
7621 | index correctly. We use special macro definitions for the mapped | |
7622 | section indices; these definitions are interpreted by the | |
7623 | swap_out_syms function. */ | |
7624 | ||
9ad5cbcf AM |
7625 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7626 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7627 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7628 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7629 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7630 | |
b34976b6 | 7631 | bfd_boolean |
217aa764 AM |
7632 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7633 | asymbol *isymarg, | |
7634 | bfd *obfd, | |
7635 | asymbol *osymarg) | |
252b5132 RH |
7636 | { |
7637 | elf_symbol_type *isym, *osym; | |
7638 | ||
7639 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7640 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7641 | return TRUE; |
252b5132 RH |
7642 | |
7643 | isym = elf_symbol_from (ibfd, isymarg); | |
7644 | osym = elf_symbol_from (obfd, osymarg); | |
7645 | ||
7646 | if (isym != NULL | |
8424d8f5 | 7647 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7648 | && osym != NULL |
7649 | && bfd_is_abs_section (isym->symbol.section)) | |
7650 | { | |
7651 | unsigned int shndx; | |
7652 | ||
7653 | shndx = isym->internal_elf_sym.st_shndx; | |
7654 | if (shndx == elf_onesymtab (ibfd)) | |
7655 | shndx = MAP_ONESYMTAB; | |
7656 | else if (shndx == elf_dynsymtab (ibfd)) | |
7657 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7658 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7659 | shndx = MAP_STRTAB; |
12bd6957 | 7660 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7661 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7662 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7663 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7664 | osym->internal_elf_sym.st_shndx = shndx; |
7665 | } | |
7666 | ||
b34976b6 | 7667 | return TRUE; |
252b5132 RH |
7668 | } |
7669 | ||
7670 | /* Swap out the symbols. */ | |
7671 | ||
b34976b6 | 7672 | static bfd_boolean |
217aa764 | 7673 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7674 | struct elf_strtab_hash **sttp, |
217aa764 | 7675 | int relocatable_p) |
252b5132 | 7676 | { |
9c5bfbb7 | 7677 | const struct elf_backend_data *bed; |
079e9a2f AM |
7678 | int symcount; |
7679 | asymbol **syms; | |
ef10c3ac | 7680 | struct elf_strtab_hash *stt; |
079e9a2f | 7681 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7682 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7683 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7684 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7685 | bfd_byte *outbound_syms; |
7686 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7687 | unsigned long outbound_syms_index; |
7688 | unsigned long outbound_shndx_index; | |
079e9a2f | 7689 | int idx; |
12bd6957 | 7690 | unsigned int num_locals; |
079e9a2f | 7691 | bfd_size_type amt; |
174fd7f9 | 7692 | bfd_boolean name_local_sections; |
252b5132 | 7693 | |
12bd6957 | 7694 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7695 | return FALSE; |
252b5132 | 7696 | |
c044fabd | 7697 | /* Dump out the symtabs. */ |
ef10c3ac | 7698 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7699 | if (stt == NULL) |
b34976b6 | 7700 | return FALSE; |
252b5132 | 7701 | |
079e9a2f AM |
7702 | bed = get_elf_backend_data (abfd); |
7703 | symcount = bfd_get_symcount (abfd); | |
7704 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7705 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7706 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7707 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7708 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7709 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7710 | |
7711 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7712 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7713 | ||
ef10c3ac L |
7714 | /* Allocate buffer to swap out the .strtab section. */ |
7715 | symstrtab = (struct elf_sym_strtab *) bfd_malloc ((symcount + 1) | |
7716 | * sizeof (*symstrtab)); | |
7717 | if (symstrtab == NULL) | |
7718 | { | |
7719 | _bfd_elf_strtab_free (stt); | |
7720 | return FALSE; | |
7721 | } | |
7722 | ||
a50b1753 | 7723 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 7724 | bed->s->sizeof_sym); |
079e9a2f | 7725 | if (outbound_syms == NULL) |
5ed6aba4 | 7726 | { |
ef10c3ac L |
7727 | error_return: |
7728 | _bfd_elf_strtab_free (stt); | |
7729 | free (symstrtab); | |
5ed6aba4 NC |
7730 | return FALSE; |
7731 | } | |
217aa764 | 7732 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 7733 | outbound_syms_index = 0; |
252b5132 | 7734 | |
9ad5cbcf | 7735 | outbound_shndx = NULL; |
ef10c3ac | 7736 | outbound_shndx_index = 0; |
6a40cf0c NC |
7737 | |
7738 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 7739 | { |
6a40cf0c NC |
7740 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
7741 | if (symtab_shndx_hdr->sh_name != 0) | |
7742 | { | |
7743 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
7744 | outbound_shndx = (bfd_byte *) | |
7745 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
7746 | if (outbound_shndx == NULL) | |
7747 | goto error_return; | |
5ed6aba4 | 7748 | |
6a40cf0c NC |
7749 | symtab_shndx_hdr->contents = outbound_shndx; |
7750 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
7751 | symtab_shndx_hdr->sh_size = amt; | |
7752 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
7753 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
7754 | } | |
7755 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
7756 | } |
7757 | ||
589e6347 | 7758 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
7759 | { |
7760 | /* Fill in zeroth symbol and swap it out. */ | |
7761 | Elf_Internal_Sym sym; | |
7762 | sym.st_name = 0; | |
7763 | sym.st_value = 0; | |
7764 | sym.st_size = 0; | |
7765 | sym.st_info = 0; | |
7766 | sym.st_other = 0; | |
7767 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 7768 | sym.st_target_internal = 0; |
ef10c3ac L |
7769 | symstrtab[0].sym = sym; |
7770 | symstrtab[0].dest_index = outbound_syms_index; | |
7771 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
7772 | outbound_syms_index++; | |
9ad5cbcf | 7773 | if (outbound_shndx != NULL) |
ef10c3ac | 7774 | outbound_shndx_index++; |
079e9a2f | 7775 | } |
252b5132 | 7776 | |
174fd7f9 RS |
7777 | name_local_sections |
7778 | = (bed->elf_backend_name_local_section_symbols | |
7779 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
7780 | ||
079e9a2f | 7781 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 7782 | for (idx = 0; idx < symcount;) |
252b5132 | 7783 | { |
252b5132 | 7784 | Elf_Internal_Sym sym; |
079e9a2f AM |
7785 | bfd_vma value = syms[idx]->value; |
7786 | elf_symbol_type *type_ptr; | |
7787 | flagword flags = syms[idx]->flags; | |
7788 | int type; | |
252b5132 | 7789 | |
174fd7f9 RS |
7790 | if (!name_local_sections |
7791 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
7792 | { |
7793 | /* Local section symbols have no name. */ | |
ef10c3ac | 7794 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
7795 | } |
7796 | else | |
7797 | { | |
ef10c3ac L |
7798 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
7799 | to get the final offset for st_name. */ | |
7800 | sym.st_name | |
7801 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
7802 | FALSE); | |
079e9a2f | 7803 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 7804 | goto error_return; |
079e9a2f | 7805 | } |
252b5132 | 7806 | |
079e9a2f | 7807 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 7808 | |
079e9a2f AM |
7809 | if ((flags & BSF_SECTION_SYM) == 0 |
7810 | && bfd_is_com_section (syms[idx]->section)) | |
7811 | { | |
7812 | /* ELF common symbols put the alignment into the `value' field, | |
7813 | and the size into the `size' field. This is backwards from | |
7814 | how BFD handles it, so reverse it here. */ | |
7815 | sym.st_size = value; | |
7816 | if (type_ptr == NULL | |
7817 | || type_ptr->internal_elf_sym.st_value == 0) | |
7818 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
7819 | else | |
7820 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
7821 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
7822 | (abfd, syms[idx]->section); | |
7823 | } | |
7824 | else | |
7825 | { | |
7826 | asection *sec = syms[idx]->section; | |
cb33740c | 7827 | unsigned int shndx; |
252b5132 | 7828 | |
079e9a2f AM |
7829 | if (sec->output_section) |
7830 | { | |
7831 | value += sec->output_offset; | |
7832 | sec = sec->output_section; | |
7833 | } | |
589e6347 | 7834 | |
079e9a2f AM |
7835 | /* Don't add in the section vma for relocatable output. */ |
7836 | if (! relocatable_p) | |
7837 | value += sec->vma; | |
7838 | sym.st_value = value; | |
7839 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
7840 | ||
7841 | if (bfd_is_abs_section (sec) | |
7842 | && type_ptr != NULL | |
7843 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
7844 | { | |
7845 | /* This symbol is in a real ELF section which we did | |
7846 | not create as a BFD section. Undo the mapping done | |
7847 | by copy_private_symbol_data. */ | |
7848 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
7849 | switch (shndx) | |
7850 | { | |
7851 | case MAP_ONESYMTAB: | |
7852 | shndx = elf_onesymtab (abfd); | |
7853 | break; | |
7854 | case MAP_DYNSYMTAB: | |
7855 | shndx = elf_dynsymtab (abfd); | |
7856 | break; | |
7857 | case MAP_STRTAB: | |
12bd6957 | 7858 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
7859 | break; |
7860 | case MAP_SHSTRTAB: | |
12bd6957 | 7861 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 7862 | break; |
9ad5cbcf | 7863 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
7864 | if (elf_symtab_shndx_list (abfd)) |
7865 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 7866 | break; |
079e9a2f | 7867 | default: |
15bc576a | 7868 | shndx = SHN_ABS; |
079e9a2f AM |
7869 | break; |
7870 | } | |
7871 | } | |
7872 | else | |
7873 | { | |
7874 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 7875 | |
cb33740c | 7876 | if (shndx == SHN_BAD) |
079e9a2f AM |
7877 | { |
7878 | asection *sec2; | |
7879 | ||
7880 | /* Writing this would be a hell of a lot easier if | |
7881 | we had some decent documentation on bfd, and | |
7882 | knew what to expect of the library, and what to | |
7883 | demand of applications. For example, it | |
7884 | appears that `objcopy' might not set the | |
7885 | section of a symbol to be a section that is | |
7886 | actually in the output file. */ | |
7887 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
7888 | if (sec2 != NULL) |
7889 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
7890 | if (shndx == SHN_BAD) | |
589e6347 | 7891 | { |
695344c0 | 7892 | /* xgettext:c-format */ |
589e6347 NC |
7893 | _bfd_error_handler (_("\ |
7894 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
7895 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
7896 | sec->name); | |
811072d8 | 7897 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 7898 | goto error_return; |
589e6347 | 7899 | } |
079e9a2f AM |
7900 | } |
7901 | } | |
252b5132 | 7902 | |
079e9a2f AM |
7903 | sym.st_shndx = shndx; |
7904 | } | |
252b5132 | 7905 | |
13ae64f3 JJ |
7906 | if ((flags & BSF_THREAD_LOCAL) != 0) |
7907 | type = STT_TLS; | |
d8045f23 NC |
7908 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
7909 | type = STT_GNU_IFUNC; | |
13ae64f3 | 7910 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
7911 | type = STT_FUNC; |
7912 | else if ((flags & BSF_OBJECT) != 0) | |
7913 | type = STT_OBJECT; | |
d9352518 DB |
7914 | else if ((flags & BSF_RELC) != 0) |
7915 | type = STT_RELC; | |
7916 | else if ((flags & BSF_SRELC) != 0) | |
7917 | type = STT_SRELC; | |
079e9a2f AM |
7918 | else |
7919 | type = STT_NOTYPE; | |
252b5132 | 7920 | |
13ae64f3 JJ |
7921 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
7922 | type = STT_TLS; | |
7923 | ||
589e6347 | 7924 | /* Processor-specific types. */ |
079e9a2f AM |
7925 | if (type_ptr != NULL |
7926 | && bed->elf_backend_get_symbol_type) | |
7927 | type = ((*bed->elf_backend_get_symbol_type) | |
7928 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 7929 | |
079e9a2f AM |
7930 | if (flags & BSF_SECTION_SYM) |
7931 | { | |
7932 | if (flags & BSF_GLOBAL) | |
7933 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
7934 | else | |
7935 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
7936 | } | |
7937 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 7938 | { |
b8871f35 L |
7939 | if (type != STT_TLS) |
7940 | { | |
7941 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
7942 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
7943 | ? STT_COMMON : STT_OBJECT); | |
7944 | else | |
7945 | type = ((flags & BSF_ELF_COMMON) != 0 | |
7946 | ? STT_COMMON : STT_OBJECT); | |
7947 | } | |
7948 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 7949 | } |
079e9a2f AM |
7950 | else if (bfd_is_und_section (syms[idx]->section)) |
7951 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
7952 | ? STB_WEAK | |
7953 | : STB_GLOBAL), | |
7954 | type); | |
7955 | else if (flags & BSF_FILE) | |
7956 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
7957 | else | |
7958 | { | |
7959 | int bind = STB_LOCAL; | |
252b5132 | 7960 | |
079e9a2f AM |
7961 | if (flags & BSF_LOCAL) |
7962 | bind = STB_LOCAL; | |
3e7a7d11 NC |
7963 | else if (flags & BSF_GNU_UNIQUE) |
7964 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
7965 | else if (flags & BSF_WEAK) |
7966 | bind = STB_WEAK; | |
7967 | else if (flags & BSF_GLOBAL) | |
7968 | bind = STB_GLOBAL; | |
252b5132 | 7969 | |
079e9a2f AM |
7970 | sym.st_info = ELF_ST_INFO (bind, type); |
7971 | } | |
252b5132 | 7972 | |
079e9a2f | 7973 | if (type_ptr != NULL) |
35fc36a8 RS |
7974 | { |
7975 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
7976 | sym.st_target_internal | |
7977 | = type_ptr->internal_elf_sym.st_target_internal; | |
7978 | } | |
079e9a2f | 7979 | else |
35fc36a8 RS |
7980 | { |
7981 | sym.st_other = 0; | |
7982 | sym.st_target_internal = 0; | |
7983 | } | |
252b5132 | 7984 | |
ef10c3ac L |
7985 | idx++; |
7986 | symstrtab[idx].sym = sym; | |
7987 | symstrtab[idx].dest_index = outbound_syms_index; | |
7988 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
7989 | ||
7990 | outbound_syms_index++; | |
9ad5cbcf | 7991 | if (outbound_shndx != NULL) |
ef10c3ac L |
7992 | outbound_shndx_index++; |
7993 | } | |
7994 | ||
7995 | /* Finalize the .strtab section. */ | |
7996 | _bfd_elf_strtab_finalize (stt); | |
7997 | ||
7998 | /* Swap out the .strtab section. */ | |
7999 | for (idx = 0; idx <= symcount; idx++) | |
8000 | { | |
8001 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8002 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8003 | elfsym->sym.st_name = 0; | |
8004 | else | |
8005 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8006 | elfsym->sym.st_name); | |
8007 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8008 | (outbound_syms | |
8009 | + (elfsym->dest_index | |
8010 | * bed->s->sizeof_sym)), | |
8011 | (outbound_shndx | |
8012 | + (elfsym->destshndx_index | |
8013 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8014 | } |
ef10c3ac | 8015 | free (symstrtab); |
252b5132 | 8016 | |
079e9a2f | 8017 | *sttp = stt; |
ef10c3ac | 8018 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8019 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8020 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8021 | symstrtab_hdr->sh_addr = 0; |
8022 | symstrtab_hdr->sh_entsize = 0; | |
8023 | symstrtab_hdr->sh_link = 0; | |
8024 | symstrtab_hdr->sh_info = 0; | |
8025 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8026 | |
b34976b6 | 8027 | return TRUE; |
252b5132 RH |
8028 | } |
8029 | ||
8030 | /* Return the number of bytes required to hold the symtab vector. | |
8031 | ||
8032 | Note that we base it on the count plus 1, since we will null terminate | |
8033 | the vector allocated based on this size. However, the ELF symbol table | |
8034 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8035 | ||
8036 | long | |
217aa764 | 8037 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
8038 | { |
8039 | long symcount; | |
8040 | long symtab_size; | |
8041 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8042 | ||
8043 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
8044 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8045 | if (symcount > 0) | |
8046 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8047 | |
8048 | return symtab_size; | |
8049 | } | |
8050 | ||
8051 | long | |
217aa764 | 8052 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
8053 | { |
8054 | long symcount; | |
8055 | long symtab_size; | |
8056 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8057 | ||
8058 | if (elf_dynsymtab (abfd) == 0) | |
8059 | { | |
8060 | bfd_set_error (bfd_error_invalid_operation); | |
8061 | return -1; | |
8062 | } | |
8063 | ||
8064 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
8065 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8066 | if (symcount > 0) | |
8067 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8068 | |
8069 | return symtab_size; | |
8070 | } | |
8071 | ||
8072 | long | |
217aa764 AM |
8073 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8074 | sec_ptr asect) | |
252b5132 RH |
8075 | { |
8076 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
8077 | } | |
8078 | ||
8079 | /* Canonicalize the relocs. */ | |
8080 | ||
8081 | long | |
217aa764 AM |
8082 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8083 | sec_ptr section, | |
8084 | arelent **relptr, | |
8085 | asymbol **symbols) | |
252b5132 RH |
8086 | { |
8087 | arelent *tblptr; | |
8088 | unsigned int i; | |
9c5bfbb7 | 8089 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8090 | |
b34976b6 | 8091 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8092 | return -1; |
8093 | ||
8094 | tblptr = section->relocation; | |
8095 | for (i = 0; i < section->reloc_count; i++) | |
8096 | *relptr++ = tblptr++; | |
8097 | ||
8098 | *relptr = NULL; | |
8099 | ||
8100 | return section->reloc_count; | |
8101 | } | |
8102 | ||
8103 | long | |
6cee3f79 | 8104 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8105 | { |
9c5bfbb7 | 8106 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8107 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8108 | |
8109 | if (symcount >= 0) | |
8110 | bfd_get_symcount (abfd) = symcount; | |
8111 | return symcount; | |
8112 | } | |
8113 | ||
8114 | long | |
217aa764 AM |
8115 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8116 | asymbol **allocation) | |
252b5132 | 8117 | { |
9c5bfbb7 | 8118 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8119 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8120 | |
8121 | if (symcount >= 0) | |
8122 | bfd_get_dynamic_symcount (abfd) = symcount; | |
8123 | return symcount; | |
252b5132 RH |
8124 | } |
8125 | ||
8615f3f2 AM |
8126 | /* Return the size required for the dynamic reloc entries. Any loadable |
8127 | section that was actually installed in the BFD, and has type SHT_REL | |
8128 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8129 | dynamic reloc section. */ | |
252b5132 RH |
8130 | |
8131 | long | |
217aa764 | 8132 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
8133 | { |
8134 | long ret; | |
8135 | asection *s; | |
8136 | ||
8137 | if (elf_dynsymtab (abfd) == 0) | |
8138 | { | |
8139 | bfd_set_error (bfd_error_invalid_operation); | |
8140 | return -1; | |
8141 | } | |
8142 | ||
8143 | ret = sizeof (arelent *); | |
8144 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 8145 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8146 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8147 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 8148 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
8149 | * sizeof (arelent *)); |
8150 | ||
8151 | return ret; | |
8152 | } | |
8153 | ||
8615f3f2 AM |
8154 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8155 | dynamic relocations as a single block, although they are actually | |
8156 | associated with particular sections; the interface, which was | |
8157 | designed for SunOS style shared libraries, expects that there is only | |
8158 | one set of dynamic relocs. Any loadable section that was actually | |
8159 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8160 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8161 | |
8162 | long | |
217aa764 AM |
8163 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8164 | arelent **storage, | |
8165 | asymbol **syms) | |
252b5132 | 8166 | { |
217aa764 | 8167 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8168 | asection *s; |
8169 | long ret; | |
8170 | ||
8171 | if (elf_dynsymtab (abfd) == 0) | |
8172 | { | |
8173 | bfd_set_error (bfd_error_invalid_operation); | |
8174 | return -1; | |
8175 | } | |
8176 | ||
8177 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8178 | ret = 0; | |
8179 | for (s = abfd->sections; s != NULL; s = s->next) | |
8180 | { | |
266b05cf | 8181 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8182 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8183 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8184 | { | |
8185 | arelent *p; | |
8186 | long count, i; | |
8187 | ||
b34976b6 | 8188 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8189 | return -1; |
eea6121a | 8190 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8191 | p = s->relocation; |
8192 | for (i = 0; i < count; i++) | |
8193 | *storage++ = p++; | |
8194 | ret += count; | |
8195 | } | |
8196 | } | |
8197 | ||
8198 | *storage = NULL; | |
8199 | ||
8200 | return ret; | |
8201 | } | |
8202 | \f | |
8203 | /* Read in the version information. */ | |
8204 | ||
b34976b6 | 8205 | bfd_boolean |
fc0e6df6 | 8206 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8207 | { |
8208 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8209 | unsigned int freeidx = 0; |
8210 | ||
8211 | if (elf_dynverref (abfd) != 0) | |
8212 | { | |
8213 | Elf_Internal_Shdr *hdr; | |
8214 | Elf_External_Verneed *everneed; | |
8215 | Elf_Internal_Verneed *iverneed; | |
8216 | unsigned int i; | |
d0fb9a8d | 8217 | bfd_byte *contents_end; |
fc0e6df6 PB |
8218 | |
8219 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8220 | ||
bd61e135 AM |
8221 | if (hdr->sh_info == 0 |
8222 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8223 | { |
601a03ba | 8224 | error_return_bad_verref: |
4eca0228 | 8225 | _bfd_error_handler |
601a03ba AM |
8226 | (_("%B: .gnu.version_r invalid entry"), abfd); |
8227 | bfd_set_error (bfd_error_bad_value); | |
d0fb9a8d JJ |
8228 | error_return_verref: |
8229 | elf_tdata (abfd)->verref = NULL; | |
8230 | elf_tdata (abfd)->cverrefs = 0; | |
8231 | goto error_return; | |
8232 | } | |
601a03ba AM |
8233 | |
8234 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
8235 | if (contents == NULL) | |
8236 | goto error_return_verref; | |
8237 | ||
fc0e6df6 PB |
8238 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8239 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8240 | goto error_return_verref; |
fc0e6df6 | 8241 | |
601a03ba | 8242 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8243 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8244 | |
8245 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8246 | goto error_return_verref; |
8247 | ||
8248 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8249 | == sizeof (Elf_External_Vernaux)); | |
8250 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8251 | everneed = (Elf_External_Verneed *) contents; |
8252 | iverneed = elf_tdata (abfd)->verref; | |
8253 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8254 | { | |
8255 | Elf_External_Vernaux *evernaux; | |
8256 | Elf_Internal_Vernaux *ivernaux; | |
8257 | unsigned int j; | |
8258 | ||
8259 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8260 | ||
8261 | iverneed->vn_bfd = abfd; | |
8262 | ||
8263 | iverneed->vn_filename = | |
8264 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8265 | iverneed->vn_file); | |
8266 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8267 | goto error_return_bad_verref; |
fc0e6df6 | 8268 | |
d0fb9a8d JJ |
8269 | if (iverneed->vn_cnt == 0) |
8270 | iverneed->vn_auxptr = NULL; | |
8271 | else | |
8272 | { | |
a50b1753 | 8273 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8274 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8275 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8276 | if (iverneed->vn_auxptr == NULL) |
8277 | goto error_return_verref; | |
8278 | } | |
8279 | ||
8280 | if (iverneed->vn_aux | |
8281 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8282 | goto error_return_bad_verref; |
fc0e6df6 PB |
8283 | |
8284 | evernaux = ((Elf_External_Vernaux *) | |
8285 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8286 | ivernaux = iverneed->vn_auxptr; | |
8287 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8288 | { | |
8289 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8290 | ||
8291 | ivernaux->vna_nodename = | |
8292 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8293 | ivernaux->vna_name); | |
8294 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8295 | goto error_return_bad_verref; |
fc0e6df6 | 8296 | |
25ff461f AM |
8297 | if (ivernaux->vna_other > freeidx) |
8298 | freeidx = ivernaux->vna_other; | |
8299 | ||
8300 | ivernaux->vna_nextptr = NULL; | |
8301 | if (ivernaux->vna_next == 0) | |
8302 | { | |
8303 | iverneed->vn_cnt = j + 1; | |
8304 | break; | |
8305 | } | |
fc0e6df6 PB |
8306 | if (j + 1 < iverneed->vn_cnt) |
8307 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8308 | |
d0fb9a8d JJ |
8309 | if (ivernaux->vna_next |
8310 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8311 | goto error_return_bad_verref; |
d0fb9a8d | 8312 | |
fc0e6df6 PB |
8313 | evernaux = ((Elf_External_Vernaux *) |
8314 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8315 | } |
8316 | ||
25ff461f AM |
8317 | iverneed->vn_nextref = NULL; |
8318 | if (iverneed->vn_next == 0) | |
8319 | break; | |
fc0e6df6 PB |
8320 | if (i + 1 < hdr->sh_info) |
8321 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8322 | |
d0fb9a8d JJ |
8323 | if (iverneed->vn_next |
8324 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8325 | goto error_return_bad_verref; |
d0fb9a8d | 8326 | |
fc0e6df6 PB |
8327 | everneed = ((Elf_External_Verneed *) |
8328 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8329 | } | |
25ff461f | 8330 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8331 | |
8332 | free (contents); | |
8333 | contents = NULL; | |
8334 | } | |
252b5132 RH |
8335 | |
8336 | if (elf_dynverdef (abfd) != 0) | |
8337 | { | |
8338 | Elf_Internal_Shdr *hdr; | |
8339 | Elf_External_Verdef *everdef; | |
8340 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8341 | Elf_Internal_Verdef *iverdefarr; |
8342 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8343 | unsigned int i; |
062e2358 | 8344 | unsigned int maxidx; |
d0fb9a8d | 8345 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8346 | |
8347 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8348 | ||
601a03ba AM |
8349 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8350 | { | |
8351 | error_return_bad_verdef: | |
4eca0228 | 8352 | _bfd_error_handler |
601a03ba AM |
8353 | (_("%B: .gnu.version_d invalid entry"), abfd); |
8354 | bfd_set_error (bfd_error_bad_value); | |
8355 | error_return_verdef: | |
8356 | elf_tdata (abfd)->verdef = NULL; | |
8357 | elf_tdata (abfd)->cverdefs = 0; | |
8358 | goto error_return; | |
8359 | } | |
8360 | ||
a50b1753 | 8361 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8362 | if (contents == NULL) |
601a03ba | 8363 | goto error_return_verdef; |
252b5132 | 8364 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8365 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8366 | goto error_return_verdef; |
d0fb9a8d JJ |
8367 | |
8368 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8369 | >= sizeof (Elf_External_Verdaux)); | |
8370 | contents_end_def = contents + hdr->sh_size | |
8371 | - sizeof (Elf_External_Verdef); | |
8372 | contents_end_aux = contents + hdr->sh_size | |
8373 | - sizeof (Elf_External_Verdaux); | |
8374 | ||
f631889e UD |
8375 | /* We know the number of entries in the section but not the maximum |
8376 | index. Therefore we have to run through all entries and find | |
8377 | the maximum. */ | |
252b5132 | 8378 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8379 | maxidx = 0; |
8380 | for (i = 0; i < hdr->sh_info; ++i) | |
8381 | { | |
8382 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8383 | ||
601a03ba AM |
8384 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8385 | goto error_return_bad_verdef; | |
062e2358 AM |
8386 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8387 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8388 | |
25ff461f AM |
8389 | if (iverdefmem.vd_next == 0) |
8390 | break; | |
8391 | ||
d0fb9a8d JJ |
8392 | if (iverdefmem.vd_next |
8393 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8394 | goto error_return_bad_verdef; |
d0fb9a8d | 8395 | |
f631889e UD |
8396 | everdef = ((Elf_External_Verdef *) |
8397 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8398 | } | |
8399 | ||
fc0e6df6 PB |
8400 | if (default_imported_symver) |
8401 | { | |
8402 | if (freeidx > maxidx) | |
8403 | maxidx = ++freeidx; | |
8404 | else | |
8405 | freeidx = ++maxidx; | |
8406 | } | |
201159ec | 8407 | |
601a03ba AM |
8408 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8409 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8410 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8411 | goto error_return_verdef; |
f631889e UD |
8412 | |
8413 | elf_tdata (abfd)->cverdefs = maxidx; | |
8414 | ||
8415 | everdef = (Elf_External_Verdef *) contents; | |
8416 | iverdefarr = elf_tdata (abfd)->verdef; | |
8417 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8418 | { |
8419 | Elf_External_Verdaux *everdaux; | |
8420 | Elf_Internal_Verdaux *iverdaux; | |
8421 | unsigned int j; | |
8422 | ||
f631889e UD |
8423 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8424 | ||
d0fb9a8d | 8425 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8426 | goto error_return_bad_verdef; |
d0fb9a8d | 8427 | |
f631889e | 8428 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8429 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8430 | |
8431 | iverdef->vd_bfd = abfd; | |
8432 | ||
d0fb9a8d JJ |
8433 | if (iverdef->vd_cnt == 0) |
8434 | iverdef->vd_auxptr = NULL; | |
8435 | else | |
8436 | { | |
a50b1753 | 8437 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8438 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8439 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8440 | if (iverdef->vd_auxptr == NULL) |
8441 | goto error_return_verdef; | |
8442 | } | |
8443 | ||
8444 | if (iverdef->vd_aux | |
8445 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8446 | goto error_return_bad_verdef; |
252b5132 RH |
8447 | |
8448 | everdaux = ((Elf_External_Verdaux *) | |
8449 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8450 | iverdaux = iverdef->vd_auxptr; | |
8451 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8452 | { | |
8453 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8454 | ||
8455 | iverdaux->vda_nodename = | |
8456 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8457 | iverdaux->vda_name); | |
8458 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8459 | goto error_return_bad_verdef; |
252b5132 | 8460 | |
25ff461f AM |
8461 | iverdaux->vda_nextptr = NULL; |
8462 | if (iverdaux->vda_next == 0) | |
8463 | { | |
8464 | iverdef->vd_cnt = j + 1; | |
8465 | break; | |
8466 | } | |
252b5132 RH |
8467 | if (j + 1 < iverdef->vd_cnt) |
8468 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8469 | |
d0fb9a8d JJ |
8470 | if (iverdaux->vda_next |
8471 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8472 | goto error_return_bad_verdef; |
d0fb9a8d | 8473 | |
252b5132 RH |
8474 | everdaux = ((Elf_External_Verdaux *) |
8475 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8476 | } | |
8477 | ||
595bce75 | 8478 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8479 | if (iverdef->vd_cnt) |
8480 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8481 | |
25ff461f AM |
8482 | iverdef->vd_nextdef = NULL; |
8483 | if (iverdef->vd_next == 0) | |
8484 | break; | |
d0fb9a8d | 8485 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8486 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8487 | |
8488 | everdef = ((Elf_External_Verdef *) | |
8489 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8490 | } | |
8491 | ||
8492 | free (contents); | |
8493 | contents = NULL; | |
8494 | } | |
fc0e6df6 | 8495 | else if (default_imported_symver) |
252b5132 | 8496 | { |
fc0e6df6 PB |
8497 | if (freeidx < 3) |
8498 | freeidx = 3; | |
8499 | else | |
8500 | freeidx++; | |
252b5132 | 8501 | |
a50b1753 | 8502 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8503 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8504 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8505 | goto error_return; |
8506 | ||
fc0e6df6 PB |
8507 | elf_tdata (abfd)->cverdefs = freeidx; |
8508 | } | |
252b5132 | 8509 | |
fc0e6df6 PB |
8510 | /* Create a default version based on the soname. */ |
8511 | if (default_imported_symver) | |
8512 | { | |
8513 | Elf_Internal_Verdef *iverdef; | |
8514 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8515 | |
5bb3703f | 8516 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8517 | |
fc0e6df6 PB |
8518 | iverdef->vd_version = VER_DEF_CURRENT; |
8519 | iverdef->vd_flags = 0; | |
8520 | iverdef->vd_ndx = freeidx; | |
8521 | iverdef->vd_cnt = 1; | |
252b5132 | 8522 | |
fc0e6df6 | 8523 | iverdef->vd_bfd = abfd; |
252b5132 | 8524 | |
fc0e6df6 PB |
8525 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8526 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8527 | goto error_return_verdef; |
fc0e6df6 | 8528 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8529 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8530 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8531 | if (iverdef->vd_auxptr == NULL) |
8532 | goto error_return_verdef; | |
252b5132 | 8533 | |
fc0e6df6 PB |
8534 | iverdaux = iverdef->vd_auxptr; |
8535 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8536 | } |
8537 | ||
b34976b6 | 8538 | return TRUE; |
252b5132 RH |
8539 | |
8540 | error_return: | |
5ed6aba4 | 8541 | if (contents != NULL) |
252b5132 | 8542 | free (contents); |
b34976b6 | 8543 | return FALSE; |
252b5132 RH |
8544 | } |
8545 | \f | |
8546 | asymbol * | |
217aa764 | 8547 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8548 | { |
8549 | elf_symbol_type *newsym; | |
8550 | ||
201159ec | 8551 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof * newsym); |
252b5132 RH |
8552 | if (!newsym) |
8553 | return NULL; | |
201159ec NC |
8554 | newsym->symbol.the_bfd = abfd; |
8555 | return &newsym->symbol; | |
252b5132 RH |
8556 | } |
8557 | ||
8558 | void | |
217aa764 AM |
8559 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8560 | asymbol *symbol, | |
8561 | symbol_info *ret) | |
252b5132 RH |
8562 | { |
8563 | bfd_symbol_info (symbol, ret); | |
8564 | } | |
8565 | ||
8566 | /* Return whether a symbol name implies a local symbol. Most targets | |
8567 | use this function for the is_local_label_name entry point, but some | |
8568 | override it. */ | |
8569 | ||
b34976b6 | 8570 | bfd_boolean |
217aa764 AM |
8571 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8572 | const char *name) | |
252b5132 RH |
8573 | { |
8574 | /* Normal local symbols start with ``.L''. */ | |
8575 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8576 | return TRUE; |
252b5132 RH |
8577 | |
8578 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8579 | DWARF debugging symbols starting with ``..''. */ | |
8580 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8581 | return TRUE; |
252b5132 RH |
8582 | |
8583 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8584 | emitting DWARF debugging output. I suspect this is actually a | |
8585 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8586 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8587 | underscore to be emitted on some ELF targets). For ease of use, | |
8588 | we treat such symbols as local. */ | |
8589 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8590 | return TRUE; |
252b5132 | 8591 | |
b1fa9dd6 NC |
8592 | /* Treat assembler generated fake symbols, dollar local labels and |
8593 | forward-backward labels (aka local labels) as locals. | |
8594 | These labels have the form: | |
8595 | ||
07d6d2b8 | 8596 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8597 | |
8598 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8599 | ||
8600 | Versions which start with .L will have already been matched above, | |
8601 | so we only need to match the rest. */ | |
8602 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8603 | { | |
8604 | bfd_boolean ret = FALSE; | |
8605 | const char * p; | |
8606 | char c; | |
8607 | ||
8608 | for (p = name + 2; (c = *p); p++) | |
8609 | { | |
8610 | if (c == 1 || c == 2) | |
8611 | { | |
8612 | if (c == 1 && p == name + 2) | |
8613 | /* A fake symbol. */ | |
8614 | return TRUE; | |
8615 | ||
8616 | /* FIXME: We are being paranoid here and treating symbols like | |
8617 | L0^Bfoo as if there were non-local, on the grounds that the | |
8618 | assembler will never generate them. But can any symbol | |
8619 | containing an ASCII value in the range 1-31 ever be anything | |
8620 | other than some kind of local ? */ | |
8621 | ret = TRUE; | |
8622 | } | |
8623 | ||
8624 | if (! ISDIGIT (c)) | |
8625 | { | |
8626 | ret = FALSE; | |
8627 | break; | |
8628 | } | |
8629 | } | |
8630 | return ret; | |
8631 | } | |
ffa54770 | 8632 | |
b34976b6 | 8633 | return FALSE; |
252b5132 RH |
8634 | } |
8635 | ||
8636 | alent * | |
217aa764 AM |
8637 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8638 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8639 | { |
8640 | abort (); | |
8641 | return NULL; | |
8642 | } | |
8643 | ||
b34976b6 | 8644 | bfd_boolean |
217aa764 AM |
8645 | _bfd_elf_set_arch_mach (bfd *abfd, |
8646 | enum bfd_architecture arch, | |
8647 | unsigned long machine) | |
252b5132 RH |
8648 | { |
8649 | /* If this isn't the right architecture for this backend, and this | |
8650 | isn't the generic backend, fail. */ | |
8651 | if (arch != get_elf_backend_data (abfd)->arch | |
8652 | && arch != bfd_arch_unknown | |
8653 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8654 | return FALSE; |
252b5132 RH |
8655 | |
8656 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8657 | } | |
8658 | ||
d1fad7c6 NC |
8659 | /* Find the nearest line to a particular section and offset, |
8660 | for error reporting. */ | |
8661 | ||
b34976b6 | 8662 | bfd_boolean |
217aa764 | 8663 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8664 | asymbol **symbols, |
fb167eb2 | 8665 | asection *section, |
217aa764 AM |
8666 | bfd_vma offset, |
8667 | const char **filename_ptr, | |
8668 | const char **functionname_ptr, | |
fb167eb2 AM |
8669 | unsigned int *line_ptr, |
8670 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8671 | { |
b34976b6 | 8672 | bfd_boolean found; |
d1fad7c6 | 8673 | |
fb167eb2 | 8674 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8675 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
8676 | line_ptr, discriminator_ptr, |
8677 | dwarf_debug_sections, 0, | |
e00e8198 AM |
8678 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8679 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8680 | filename_ptr, functionname_ptr, | |
8681 | line_ptr)) | |
d1fad7c6 NC |
8682 | { |
8683 | if (!*functionname_ptr) | |
e00e8198 AM |
8684 | _bfd_elf_find_function (abfd, symbols, section, offset, |
8685 | *filename_ptr ? NULL : filename_ptr, | |
8686 | functionname_ptr); | |
b34976b6 | 8687 | return TRUE; |
d1fad7c6 NC |
8688 | } |
8689 | ||
8690 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
8691 | &found, filename_ptr, |
8692 | functionname_ptr, line_ptr, | |
8693 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 8694 | return FALSE; |
dc43ada5 | 8695 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 8696 | return TRUE; |
d1fad7c6 NC |
8697 | |
8698 | if (symbols == NULL) | |
b34976b6 | 8699 | return FALSE; |
d1fad7c6 | 8700 | |
e00e8198 AM |
8701 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
8702 | filename_ptr, functionname_ptr)) | |
b34976b6 | 8703 | return FALSE; |
d1fad7c6 | 8704 | |
252b5132 | 8705 | *line_ptr = 0; |
b34976b6 | 8706 | return TRUE; |
252b5132 RH |
8707 | } |
8708 | ||
5420f73d L |
8709 | /* Find the line for a symbol. */ |
8710 | ||
8711 | bfd_boolean | |
8712 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
8713 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 8714 | { |
fb167eb2 AM |
8715 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
8716 | filename_ptr, NULL, line_ptr, NULL, | |
8717 | dwarf_debug_sections, 0, | |
8718 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
8719 | } |
8720 | ||
4ab527b0 FF |
8721 | /* After a call to bfd_find_nearest_line, successive calls to |
8722 | bfd_find_inliner_info can be used to get source information about | |
8723 | each level of function inlining that terminated at the address | |
8724 | passed to bfd_find_nearest_line. Currently this is only supported | |
8725 | for DWARF2 with appropriate DWARF3 extensions. */ | |
8726 | ||
8727 | bfd_boolean | |
8728 | _bfd_elf_find_inliner_info (bfd *abfd, | |
8729 | const char **filename_ptr, | |
8730 | const char **functionname_ptr, | |
8731 | unsigned int *line_ptr) | |
8732 | { | |
8733 | bfd_boolean found; | |
8734 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
8735 | functionname_ptr, line_ptr, | |
8736 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
8737 | return found; | |
8738 | } | |
8739 | ||
252b5132 | 8740 | int |
a6b96beb | 8741 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 8742 | { |
8ded5a0f AM |
8743 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
8744 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 8745 | |
0e1862bb | 8746 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 8747 | { |
12bd6957 | 8748 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 8749 | |
62d7a5f6 AM |
8750 | if (phdr_size == (bfd_size_type) -1) |
8751 | { | |
8752 | struct elf_segment_map *m; | |
8753 | ||
8754 | phdr_size = 0; | |
12bd6957 | 8755 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 8756 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 8757 | |
62d7a5f6 AM |
8758 | if (phdr_size == 0) |
8759 | phdr_size = get_program_header_size (abfd, info); | |
8760 | } | |
8ded5a0f | 8761 | |
12bd6957 | 8762 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
8763 | ret += phdr_size; |
8764 | } | |
8765 | ||
252b5132 RH |
8766 | return ret; |
8767 | } | |
8768 | ||
b34976b6 | 8769 | bfd_boolean |
217aa764 AM |
8770 | _bfd_elf_set_section_contents (bfd *abfd, |
8771 | sec_ptr section, | |
0f867abe | 8772 | const void *location, |
217aa764 AM |
8773 | file_ptr offset, |
8774 | bfd_size_type count) | |
252b5132 RH |
8775 | { |
8776 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 8777 | file_ptr pos; |
252b5132 RH |
8778 | |
8779 | if (! abfd->output_has_begun | |
217aa764 | 8780 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 8781 | return FALSE; |
252b5132 | 8782 | |
0ce398f1 L |
8783 | if (!count) |
8784 | return TRUE; | |
8785 | ||
252b5132 | 8786 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
8787 | if (hdr->sh_offset == (file_ptr) -1) |
8788 | { | |
8789 | /* We must compress this section. Write output to the buffer. */ | |
8790 | unsigned char *contents = hdr->contents; | |
8791 | if ((offset + count) > hdr->sh_size | |
8792 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
8793 | || contents == NULL) | |
8794 | abort (); | |
8795 | memcpy (contents + offset, location, count); | |
8796 | return TRUE; | |
8797 | } | |
dc810e39 AM |
8798 | pos = hdr->sh_offset + offset; |
8799 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
8800 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 8801 | return FALSE; |
252b5132 | 8802 | |
b34976b6 | 8803 | return TRUE; |
252b5132 RH |
8804 | } |
8805 | ||
8806 | void | |
217aa764 AM |
8807 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
8808 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
8809 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
8810 | { |
8811 | abort (); | |
8812 | } | |
8813 | ||
252b5132 RH |
8814 | /* Try to convert a non-ELF reloc into an ELF one. */ |
8815 | ||
b34976b6 | 8816 | bfd_boolean |
217aa764 | 8817 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 8818 | { |
c044fabd | 8819 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
8820 | |
8821 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
8822 | { | |
8823 | bfd_reloc_code_real_type code; | |
8824 | reloc_howto_type *howto; | |
8825 | ||
8826 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 8827 | equivalent ELF reloc. */ |
252b5132 RH |
8828 | |
8829 | if (areloc->howto->pc_relative) | |
8830 | { | |
8831 | switch (areloc->howto->bitsize) | |
8832 | { | |
8833 | case 8: | |
8834 | code = BFD_RELOC_8_PCREL; | |
8835 | break; | |
8836 | case 12: | |
8837 | code = BFD_RELOC_12_PCREL; | |
8838 | break; | |
8839 | case 16: | |
8840 | code = BFD_RELOC_16_PCREL; | |
8841 | break; | |
8842 | case 24: | |
8843 | code = BFD_RELOC_24_PCREL; | |
8844 | break; | |
8845 | case 32: | |
8846 | code = BFD_RELOC_32_PCREL; | |
8847 | break; | |
8848 | case 64: | |
8849 | code = BFD_RELOC_64_PCREL; | |
8850 | break; | |
8851 | default: | |
8852 | goto fail; | |
8853 | } | |
8854 | ||
8855 | howto = bfd_reloc_type_lookup (abfd, code); | |
8856 | ||
8857 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
8858 | { | |
8859 | if (howto->pcrel_offset) | |
8860 | areloc->addend += areloc->address; | |
8861 | else | |
8862 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
8863 | } | |
8864 | } | |
8865 | else | |
8866 | { | |
8867 | switch (areloc->howto->bitsize) | |
8868 | { | |
8869 | case 8: | |
8870 | code = BFD_RELOC_8; | |
8871 | break; | |
8872 | case 14: | |
8873 | code = BFD_RELOC_14; | |
8874 | break; | |
8875 | case 16: | |
8876 | code = BFD_RELOC_16; | |
8877 | break; | |
8878 | case 26: | |
8879 | code = BFD_RELOC_26; | |
8880 | break; | |
8881 | case 32: | |
8882 | code = BFD_RELOC_32; | |
8883 | break; | |
8884 | case 64: | |
8885 | code = BFD_RELOC_64; | |
8886 | break; | |
8887 | default: | |
8888 | goto fail; | |
8889 | } | |
8890 | ||
8891 | howto = bfd_reloc_type_lookup (abfd, code); | |
8892 | } | |
8893 | ||
8894 | if (howto) | |
8895 | areloc->howto = howto; | |
8896 | else | |
8897 | goto fail; | |
8898 | } | |
8899 | ||
b34976b6 | 8900 | return TRUE; |
252b5132 RH |
8901 | |
8902 | fail: | |
4eca0228 | 8903 | _bfd_error_handler |
695344c0 | 8904 | /* xgettext:c-format */ |
d003868e AM |
8905 | (_("%B: unsupported relocation type %s"), |
8906 | abfd, areloc->howto->name); | |
252b5132 | 8907 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8908 | return FALSE; |
252b5132 RH |
8909 | } |
8910 | ||
b34976b6 | 8911 | bfd_boolean |
217aa764 | 8912 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 8913 | { |
d9071b0c TG |
8914 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
8915 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 8916 | { |
c0355132 | 8917 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 8918 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 8919 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
8920 | } |
8921 | ||
8922 | return _bfd_generic_close_and_cleanup (abfd); | |
8923 | } | |
8924 | ||
8925 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
8926 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
8927 | range-checking to interfere. There is nothing else to do in processing | |
8928 | this reloc. */ | |
8929 | ||
8930 | bfd_reloc_status_type | |
217aa764 AM |
8931 | _bfd_elf_rel_vtable_reloc_fn |
8932 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 8933 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
8934 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
8935 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
8936 | { |
8937 | return bfd_reloc_ok; | |
8938 | } | |
252b5132 RH |
8939 | \f |
8940 | /* Elf core file support. Much of this only works on native | |
8941 | toolchains, since we rely on knowing the | |
8942 | machine-dependent procfs structure in order to pick | |
c044fabd | 8943 | out details about the corefile. */ |
252b5132 RH |
8944 | |
8945 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
8946 | /* Needed for new procfs interface on sparc-solaris. */ |
8947 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
8948 | # include <sys/procfs.h> |
8949 | #endif | |
8950 | ||
261b8d08 PA |
8951 | /* Return a PID that identifies a "thread" for threaded cores, or the |
8952 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
8953 | |
8954 | static int | |
217aa764 | 8955 | elfcore_make_pid (bfd *abfd) |
252b5132 | 8956 | { |
261b8d08 PA |
8957 | int pid; |
8958 | ||
228e534f | 8959 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 8960 | if (pid == 0) |
228e534f | 8961 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
8962 | |
8963 | return pid; | |
252b5132 RH |
8964 | } |
8965 | ||
252b5132 RH |
8966 | /* If there isn't a section called NAME, make one, using |
8967 | data from SECT. Note, this function will generate a | |
8968 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 8969 | overwrite it. */ |
252b5132 | 8970 | |
b34976b6 | 8971 | static bfd_boolean |
217aa764 | 8972 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 8973 | { |
c044fabd | 8974 | asection *sect2; |
252b5132 RH |
8975 | |
8976 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 8977 | return TRUE; |
252b5132 | 8978 | |
117ed4f8 | 8979 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 8980 | if (sect2 == NULL) |
b34976b6 | 8981 | return FALSE; |
252b5132 | 8982 | |
eea6121a | 8983 | sect2->size = sect->size; |
252b5132 | 8984 | sect2->filepos = sect->filepos; |
252b5132 | 8985 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 8986 | return TRUE; |
252b5132 RH |
8987 | } |
8988 | ||
bb0082d6 AM |
8989 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
8990 | actually creates up to two pseudosections: | |
8991 | - For the single-threaded case, a section named NAME, unless | |
8992 | such a section already exists. | |
8993 | - For the multi-threaded case, a section named "NAME/PID", where | |
8994 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 8995 | Both pseudosections have identical contents. */ |
b34976b6 | 8996 | bfd_boolean |
217aa764 AM |
8997 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
8998 | char *name, | |
8999 | size_t size, | |
9000 | ufile_ptr filepos) | |
bb0082d6 AM |
9001 | { |
9002 | char buf[100]; | |
9003 | char *threaded_name; | |
d4c88bbb | 9004 | size_t len; |
bb0082d6 AM |
9005 | asection *sect; |
9006 | ||
9007 | /* Build the section name. */ | |
9008 | ||
9009 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9010 | len = strlen (buf) + 1; |
a50b1753 | 9011 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9012 | if (threaded_name == NULL) |
b34976b6 | 9013 | return FALSE; |
d4c88bbb | 9014 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9015 | |
117ed4f8 AM |
9016 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9017 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9018 | if (sect == NULL) |
b34976b6 | 9019 | return FALSE; |
eea6121a | 9020 | sect->size = size; |
bb0082d6 | 9021 | sect->filepos = filepos; |
bb0082d6 AM |
9022 | sect->alignment_power = 2; |
9023 | ||
936e320b | 9024 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9025 | } |
9026 | ||
252b5132 | 9027 | /* prstatus_t exists on: |
4a938328 | 9028 | solaris 2.5+ |
252b5132 RH |
9029 | linux 2.[01] + glibc |
9030 | unixware 4.2 | |
9031 | */ | |
9032 | ||
9033 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9034 | |
b34976b6 | 9035 | static bfd_boolean |
217aa764 | 9036 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9037 | { |
eea6121a | 9038 | size_t size; |
7ee38065 | 9039 | int offset; |
252b5132 | 9040 | |
4a938328 MS |
9041 | if (note->descsz == sizeof (prstatus_t)) |
9042 | { | |
9043 | prstatus_t prstat; | |
252b5132 | 9044 | |
eea6121a | 9045 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9046 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9047 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9048 | |
fa49d224 NC |
9049 | /* Do not overwrite the core signal if it |
9050 | has already been set by another thread. */ | |
228e534f AM |
9051 | if (elf_tdata (abfd)->core->signal == 0) |
9052 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9053 | if (elf_tdata (abfd)->core->pid == 0) | |
9054 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9055 | |
4a938328 MS |
9056 | /* pr_who exists on: |
9057 | solaris 2.5+ | |
9058 | unixware 4.2 | |
9059 | pr_who doesn't exist on: | |
9060 | linux 2.[01] | |
9061 | */ | |
252b5132 | 9062 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9063 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9064 | #else |
228e534f | 9065 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9066 | #endif |
4a938328 | 9067 | } |
7ee38065 | 9068 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9069 | else if (note->descsz == sizeof (prstatus32_t)) |
9070 | { | |
9071 | /* 64-bit host, 32-bit corefile */ | |
9072 | prstatus32_t prstat; | |
9073 | ||
eea6121a | 9074 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9075 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9076 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9077 | ||
fa49d224 NC |
9078 | /* Do not overwrite the core signal if it |
9079 | has already been set by another thread. */ | |
228e534f AM |
9080 | if (elf_tdata (abfd)->core->signal == 0) |
9081 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9082 | if (elf_tdata (abfd)->core->pid == 0) | |
9083 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9084 | |
9085 | /* pr_who exists on: | |
9086 | solaris 2.5+ | |
9087 | unixware 4.2 | |
9088 | pr_who doesn't exist on: | |
9089 | linux 2.[01] | |
9090 | */ | |
7ee38065 | 9091 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9092 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9093 | #else |
228e534f | 9094 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9095 | #endif |
9096 | } | |
7ee38065 | 9097 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9098 | else |
9099 | { | |
9100 | /* Fail - we don't know how to handle any other | |
9101 | note size (ie. data object type). */ | |
b34976b6 | 9102 | return TRUE; |
4a938328 | 9103 | } |
252b5132 | 9104 | |
bb0082d6 | 9105 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9106 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9107 | size, note->descpos + offset); |
252b5132 RH |
9108 | } |
9109 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9110 | ||
bb0082d6 | 9111 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9112 | static bfd_boolean |
217aa764 AM |
9113 | elfcore_make_note_pseudosection (bfd *abfd, |
9114 | char *name, | |
9115 | Elf_Internal_Note *note) | |
252b5132 | 9116 | { |
936e320b AM |
9117 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9118 | note->descsz, note->descpos); | |
252b5132 RH |
9119 | } |
9120 | ||
ff08c6bb JB |
9121 | /* There isn't a consistent prfpregset_t across platforms, |
9122 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9123 | data structure apart. */ |
9124 | ||
b34976b6 | 9125 | static bfd_boolean |
217aa764 | 9126 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9127 | { |
9128 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9129 | } | |
9130 | ||
ff08c6bb | 9131 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9132 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9133 | literally. */ |
c044fabd | 9134 | |
b34976b6 | 9135 | static bfd_boolean |
217aa764 | 9136 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9137 | { |
9138 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9139 | } | |
9140 | ||
4339cae0 L |
9141 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9142 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9143 | contents literally. */ | |
9144 | ||
9145 | static bfd_boolean | |
9146 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9147 | { | |
9148 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9149 | } | |
9150 | ||
97753bd5 AM |
9151 | static bfd_boolean |
9152 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9153 | { | |
9154 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9155 | } | |
9156 | ||
89eeb0bc LM |
9157 | static bfd_boolean |
9158 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9159 | { | |
9160 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9161 | } | |
97753bd5 | 9162 | |
0675e188 UW |
9163 | static bfd_boolean |
9164 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9165 | { | |
9166 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9167 | } | |
9168 | ||
d7eeb400 MS |
9169 | static bfd_boolean |
9170 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9171 | { | |
9172 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9173 | } | |
9174 | ||
9175 | static bfd_boolean | |
9176 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9177 | { | |
9178 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9179 | } | |
9180 | ||
9181 | static bfd_boolean | |
9182 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9183 | { | |
9184 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9185 | } | |
9186 | ||
9187 | static bfd_boolean | |
9188 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9189 | { | |
9190 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9191 | } | |
9192 | ||
9193 | static bfd_boolean | |
9194 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9195 | { | |
9196 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9197 | } | |
9198 | ||
355b81d9 UW |
9199 | static bfd_boolean |
9200 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9201 | { | |
9202 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9203 | } | |
9204 | ||
9205 | static bfd_boolean | |
9206 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9207 | { | |
9208 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9209 | } | |
9210 | ||
abb3f6cc NC |
9211 | static bfd_boolean |
9212 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9213 | { | |
9214 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9215 | } | |
9216 | ||
4ef9f41a AA |
9217 | static bfd_boolean |
9218 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9219 | { | |
9220 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9221 | } | |
9222 | ||
9223 | static bfd_boolean | |
9224 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9225 | { | |
9226 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9227 | } | |
9228 | ||
88ab90e8 AA |
9229 | static bfd_boolean |
9230 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9231 | { | |
9232 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9233 | } | |
9234 | ||
9235 | static bfd_boolean | |
9236 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9237 | { | |
9238 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9239 | } | |
9240 | ||
faa9a424 UW |
9241 | static bfd_boolean |
9242 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9243 | { | |
9244 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9245 | } | |
9246 | ||
652451f8 YZ |
9247 | static bfd_boolean |
9248 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9249 | { | |
9250 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9251 | } | |
9252 | ||
9253 | static bfd_boolean | |
9254 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9255 | { | |
9256 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9257 | } | |
9258 | ||
9259 | static bfd_boolean | |
9260 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9261 | { | |
9262 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9263 | } | |
9264 | ||
252b5132 | 9265 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9266 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9267 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9268 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9269 | #endif | |
252b5132 RH |
9270 | #endif |
9271 | ||
9272 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9273 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9274 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9275 | typedef psinfo32_t elfcore_psinfo32_t; |
9276 | #endif | |
252b5132 RH |
9277 | #endif |
9278 | ||
252b5132 RH |
9279 | /* return a malloc'ed copy of a string at START which is at |
9280 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9281 | the copy will always have a terminating '\0'. */ |
252b5132 | 9282 | |
936e320b | 9283 | char * |
217aa764 | 9284 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9285 | { |
dc810e39 | 9286 | char *dups; |
a50b1753 | 9287 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9288 | size_t len; |
252b5132 RH |
9289 | |
9290 | if (end == NULL) | |
9291 | len = max; | |
9292 | else | |
9293 | len = end - start; | |
9294 | ||
a50b1753 | 9295 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9296 | if (dups == NULL) |
252b5132 RH |
9297 | return NULL; |
9298 | ||
dc810e39 AM |
9299 | memcpy (dups, start, len); |
9300 | dups[len] = '\0'; | |
252b5132 | 9301 | |
dc810e39 | 9302 | return dups; |
252b5132 RH |
9303 | } |
9304 | ||
bb0082d6 | 9305 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9306 | static bfd_boolean |
217aa764 | 9307 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9308 | { |
4a938328 MS |
9309 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9310 | { | |
9311 | elfcore_psinfo_t psinfo; | |
252b5132 | 9312 | |
7ee38065 | 9313 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9314 | |
335e41d4 | 9315 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9316 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9317 | #endif |
228e534f | 9318 | elf_tdata (abfd)->core->program |
936e320b AM |
9319 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9320 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9321 | |
228e534f | 9322 | elf_tdata (abfd)->core->command |
936e320b AM |
9323 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9324 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9325 | } |
7ee38065 | 9326 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9327 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9328 | { | |
9329 | /* 64-bit host, 32-bit corefile */ | |
9330 | elfcore_psinfo32_t psinfo; | |
9331 | ||
7ee38065 | 9332 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9333 | |
335e41d4 | 9334 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9335 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9336 | #endif |
228e534f | 9337 | elf_tdata (abfd)->core->program |
936e320b AM |
9338 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9339 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9340 | |
228e534f | 9341 | elf_tdata (abfd)->core->command |
936e320b AM |
9342 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9343 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9344 | } |
9345 | #endif | |
9346 | ||
9347 | else | |
9348 | { | |
9349 | /* Fail - we don't know how to handle any other | |
9350 | note size (ie. data object type). */ | |
b34976b6 | 9351 | return TRUE; |
4a938328 | 9352 | } |
252b5132 RH |
9353 | |
9354 | /* Note that for some reason, a spurious space is tacked | |
9355 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9356 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9357 | |
9358 | { | |
228e534f | 9359 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9360 | int n = strlen (command); |
9361 | ||
9362 | if (0 < n && command[n - 1] == ' ') | |
9363 | command[n - 1] = '\0'; | |
9364 | } | |
9365 | ||
b34976b6 | 9366 | return TRUE; |
252b5132 RH |
9367 | } |
9368 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9369 | ||
252b5132 | 9370 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9371 | static bfd_boolean |
217aa764 | 9372 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9373 | { |
f572a39d AM |
9374 | if (note->descsz == sizeof (pstatus_t) |
9375 | #if defined (HAVE_PXSTATUS_T) | |
9376 | || note->descsz == sizeof (pxstatus_t) | |
9377 | #endif | |
9378 | ) | |
4a938328 MS |
9379 | { |
9380 | pstatus_t pstat; | |
252b5132 | 9381 | |
4a938328 | 9382 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9383 | |
228e534f | 9384 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9385 | } |
7ee38065 | 9386 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9387 | else if (note->descsz == sizeof (pstatus32_t)) |
9388 | { | |
9389 | /* 64-bit host, 32-bit corefile */ | |
9390 | pstatus32_t pstat; | |
252b5132 | 9391 | |
4a938328 | 9392 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9393 | |
228e534f | 9394 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9395 | } |
9396 | #endif | |
252b5132 RH |
9397 | /* Could grab some more details from the "representative" |
9398 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9399 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9400 | |
b34976b6 | 9401 | return TRUE; |
252b5132 RH |
9402 | } |
9403 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9404 | ||
252b5132 | 9405 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9406 | static bfd_boolean |
217aa764 | 9407 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9408 | { |
9409 | lwpstatus_t lwpstat; | |
9410 | char buf[100]; | |
c044fabd | 9411 | char *name; |
d4c88bbb | 9412 | size_t len; |
c044fabd | 9413 | asection *sect; |
252b5132 | 9414 | |
f572a39d AM |
9415 | if (note->descsz != sizeof (lwpstat) |
9416 | #if defined (HAVE_LWPXSTATUS_T) | |
9417 | && note->descsz != sizeof (lwpxstatus_t) | |
9418 | #endif | |
9419 | ) | |
b34976b6 | 9420 | return TRUE; |
252b5132 RH |
9421 | |
9422 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9423 | ||
228e534f | 9424 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9425 | /* Do not overwrite the core signal if it has already been set by |
9426 | another thread. */ | |
228e534f AM |
9427 | if (elf_tdata (abfd)->core->signal == 0) |
9428 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9429 | |
c044fabd | 9430 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9431 | |
9432 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9433 | len = strlen (buf) + 1; |
217aa764 | 9434 | name = bfd_alloc (abfd, len); |
252b5132 | 9435 | if (name == NULL) |
b34976b6 | 9436 | return FALSE; |
d4c88bbb | 9437 | memcpy (name, buf, len); |
252b5132 | 9438 | |
117ed4f8 | 9439 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9440 | if (sect == NULL) |
b34976b6 | 9441 | return FALSE; |
252b5132 RH |
9442 | |
9443 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9444 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9445 | sect->filepos = note->descpos |
9446 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9447 | #endif | |
9448 | ||
9449 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9450 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9451 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9452 | #endif | |
9453 | ||
252b5132 RH |
9454 | sect->alignment_power = 2; |
9455 | ||
9456 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9457 | return FALSE; |
252b5132 RH |
9458 | |
9459 | /* Make a ".reg2/999" section */ | |
9460 | ||
9461 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9462 | len = strlen (buf) + 1; |
217aa764 | 9463 | name = bfd_alloc (abfd, len); |
252b5132 | 9464 | if (name == NULL) |
b34976b6 | 9465 | return FALSE; |
d4c88bbb | 9466 | memcpy (name, buf, len); |
252b5132 | 9467 | |
117ed4f8 | 9468 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9469 | if (sect == NULL) |
b34976b6 | 9470 | return FALSE; |
252b5132 RH |
9471 | |
9472 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9473 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9474 | sect->filepos = note->descpos |
9475 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9476 | #endif | |
9477 | ||
9478 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9479 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9480 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9481 | #endif | |
9482 | ||
252b5132 RH |
9483 | sect->alignment_power = 2; |
9484 | ||
936e320b | 9485 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9486 | } |
9487 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9488 | ||
b34976b6 | 9489 | static bfd_boolean |
217aa764 | 9490 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9491 | { |
9492 | char buf[30]; | |
c044fabd | 9493 | char *name; |
d4c88bbb | 9494 | size_t len; |
c044fabd | 9495 | asection *sect; |
4a6636fb PA |
9496 | int type; |
9497 | int is_active_thread; | |
9498 | bfd_vma base_addr; | |
16e9c715 | 9499 | |
4a6636fb | 9500 | if (note->descsz < 728) |
b34976b6 | 9501 | return TRUE; |
16e9c715 | 9502 | |
4a6636fb PA |
9503 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9504 | return TRUE; | |
9505 | ||
9506 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9507 | |
4a6636fb | 9508 | switch (type) |
16e9c715 | 9509 | { |
4a6636fb | 9510 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9511 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9512 | /* process_info.pid */ |
228e534f | 9513 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9514 | /* process_info.signal */ |
228e534f | 9515 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9516 | break; |
16e9c715 | 9517 | |
4a6636fb | 9518 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9519 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9520 | /* thread_info.tid */ |
9521 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9522 | |
d4c88bbb | 9523 | len = strlen (buf) + 1; |
a50b1753 | 9524 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9525 | if (name == NULL) |
b34976b6 | 9526 | return FALSE; |
c044fabd | 9527 | |
d4c88bbb | 9528 | memcpy (name, buf, len); |
16e9c715 | 9529 | |
117ed4f8 | 9530 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 9531 | if (sect == NULL) |
b34976b6 | 9532 | return FALSE; |
c044fabd | 9533 | |
4a6636fb PA |
9534 | /* sizeof (thread_info.thread_context) */ |
9535 | sect->size = 716; | |
9536 | /* offsetof (thread_info.thread_context) */ | |
9537 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
9538 | sect->alignment_power = 2; |
9539 | ||
4a6636fb PA |
9540 | /* thread_info.is_active_thread */ |
9541 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
9542 | ||
9543 | if (is_active_thread) | |
16e9c715 | 9544 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 9545 | return FALSE; |
16e9c715 NC |
9546 | break; |
9547 | ||
4a6636fb | 9548 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 9549 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
9550 | /* module_info.base_address */ |
9551 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 9552 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 9553 | |
d4c88bbb | 9554 | len = strlen (buf) + 1; |
a50b1753 | 9555 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9556 | if (name == NULL) |
b34976b6 | 9557 | return FALSE; |
c044fabd | 9558 | |
d4c88bbb | 9559 | memcpy (name, buf, len); |
252b5132 | 9560 | |
117ed4f8 | 9561 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 9562 | |
16e9c715 | 9563 | if (sect == NULL) |
b34976b6 | 9564 | return FALSE; |
c044fabd | 9565 | |
eea6121a | 9566 | sect->size = note->descsz; |
16e9c715 | 9567 | sect->filepos = note->descpos; |
16e9c715 NC |
9568 | sect->alignment_power = 2; |
9569 | break; | |
9570 | ||
9571 | default: | |
b34976b6 | 9572 | return TRUE; |
16e9c715 NC |
9573 | } |
9574 | ||
b34976b6 | 9575 | return TRUE; |
16e9c715 | 9576 | } |
252b5132 | 9577 | |
b34976b6 | 9578 | static bfd_boolean |
217aa764 | 9579 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9580 | { |
9c5bfbb7 | 9581 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 9582 | |
252b5132 RH |
9583 | switch (note->type) |
9584 | { | |
9585 | default: | |
b34976b6 | 9586 | return TRUE; |
252b5132 | 9587 | |
252b5132 | 9588 | case NT_PRSTATUS: |
bb0082d6 AM |
9589 | if (bed->elf_backend_grok_prstatus) |
9590 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 9591 | return TRUE; |
bb0082d6 | 9592 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 9593 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 9594 | #else |
b34976b6 | 9595 | return TRUE; |
252b5132 RH |
9596 | #endif |
9597 | ||
9598 | #if defined (HAVE_PSTATUS_T) | |
9599 | case NT_PSTATUS: | |
9600 | return elfcore_grok_pstatus (abfd, note); | |
9601 | #endif | |
9602 | ||
9603 | #if defined (HAVE_LWPSTATUS_T) | |
9604 | case NT_LWPSTATUS: | |
9605 | return elfcore_grok_lwpstatus (abfd, note); | |
9606 | #endif | |
9607 | ||
9608 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
9609 | return elfcore_grok_prfpreg (abfd, note); | |
9610 | ||
c044fabd | 9611 | case NT_WIN32PSTATUS: |
16e9c715 | 9612 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 9613 | |
c044fabd | 9614 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
9615 | if (note->namesz == 6 |
9616 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
9617 | return elfcore_grok_prxfpreg (abfd, note); |
9618 | else | |
b34976b6 | 9619 | return TRUE; |
ff08c6bb | 9620 | |
4339cae0 L |
9621 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
9622 | if (note->namesz == 6 | |
9623 | && strcmp (note->namedata, "LINUX") == 0) | |
9624 | return elfcore_grok_xstatereg (abfd, note); | |
9625 | else | |
9626 | return TRUE; | |
9627 | ||
97753bd5 AM |
9628 | case NT_PPC_VMX: |
9629 | if (note->namesz == 6 | |
9630 | && strcmp (note->namedata, "LINUX") == 0) | |
9631 | return elfcore_grok_ppc_vmx (abfd, note); | |
9632 | else | |
9633 | return TRUE; | |
9634 | ||
89eeb0bc LM |
9635 | case NT_PPC_VSX: |
9636 | if (note->namesz == 6 | |
07d6d2b8 AM |
9637 | && strcmp (note->namedata, "LINUX") == 0) |
9638 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 9639 | else |
07d6d2b8 | 9640 | return TRUE; |
89eeb0bc | 9641 | |
0675e188 UW |
9642 | case NT_S390_HIGH_GPRS: |
9643 | if (note->namesz == 6 | |
07d6d2b8 AM |
9644 | && strcmp (note->namedata, "LINUX") == 0) |
9645 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 9646 | else |
07d6d2b8 | 9647 | return TRUE; |
0675e188 | 9648 | |
d7eeb400 MS |
9649 | case NT_S390_TIMER: |
9650 | if (note->namesz == 6 | |
07d6d2b8 AM |
9651 | && strcmp (note->namedata, "LINUX") == 0) |
9652 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 9653 | else |
07d6d2b8 | 9654 | return TRUE; |
d7eeb400 MS |
9655 | |
9656 | case NT_S390_TODCMP: | |
9657 | if (note->namesz == 6 | |
07d6d2b8 AM |
9658 | && strcmp (note->namedata, "LINUX") == 0) |
9659 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 9660 | else |
07d6d2b8 | 9661 | return TRUE; |
d7eeb400 MS |
9662 | |
9663 | case NT_S390_TODPREG: | |
9664 | if (note->namesz == 6 | |
07d6d2b8 AM |
9665 | && strcmp (note->namedata, "LINUX") == 0) |
9666 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 9667 | else |
07d6d2b8 | 9668 | return TRUE; |
d7eeb400 MS |
9669 | |
9670 | case NT_S390_CTRS: | |
9671 | if (note->namesz == 6 | |
07d6d2b8 AM |
9672 | && strcmp (note->namedata, "LINUX") == 0) |
9673 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 9674 | else |
07d6d2b8 | 9675 | return TRUE; |
d7eeb400 MS |
9676 | |
9677 | case NT_S390_PREFIX: | |
9678 | if (note->namesz == 6 | |
07d6d2b8 AM |
9679 | && strcmp (note->namedata, "LINUX") == 0) |
9680 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 9681 | else |
07d6d2b8 | 9682 | return TRUE; |
d7eeb400 | 9683 | |
355b81d9 UW |
9684 | case NT_S390_LAST_BREAK: |
9685 | if (note->namesz == 6 | |
07d6d2b8 AM |
9686 | && strcmp (note->namedata, "LINUX") == 0) |
9687 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 9688 | else |
07d6d2b8 | 9689 | return TRUE; |
355b81d9 UW |
9690 | |
9691 | case NT_S390_SYSTEM_CALL: | |
9692 | if (note->namesz == 6 | |
07d6d2b8 AM |
9693 | && strcmp (note->namedata, "LINUX") == 0) |
9694 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 9695 | else |
07d6d2b8 | 9696 | return TRUE; |
355b81d9 | 9697 | |
abb3f6cc NC |
9698 | case NT_S390_TDB: |
9699 | if (note->namesz == 6 | |
07d6d2b8 AM |
9700 | && strcmp (note->namedata, "LINUX") == 0) |
9701 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 9702 | else |
07d6d2b8 | 9703 | return TRUE; |
abb3f6cc | 9704 | |
4ef9f41a AA |
9705 | case NT_S390_VXRS_LOW: |
9706 | if (note->namesz == 6 | |
9707 | && strcmp (note->namedata, "LINUX") == 0) | |
9708 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
9709 | else | |
9710 | return TRUE; | |
9711 | ||
9712 | case NT_S390_VXRS_HIGH: | |
9713 | if (note->namesz == 6 | |
9714 | && strcmp (note->namedata, "LINUX") == 0) | |
9715 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
9716 | else | |
9717 | return TRUE; | |
9718 | ||
88ab90e8 AA |
9719 | case NT_S390_GS_CB: |
9720 | if (note->namesz == 6 | |
9721 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 9722 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
9723 | else |
9724 | return TRUE; | |
9725 | ||
9726 | case NT_S390_GS_BC: | |
9727 | if (note->namesz == 6 | |
9728 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 9729 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
9730 | else |
9731 | return TRUE; | |
9732 | ||
faa9a424 UW |
9733 | case NT_ARM_VFP: |
9734 | if (note->namesz == 6 | |
9735 | && strcmp (note->namedata, "LINUX") == 0) | |
9736 | return elfcore_grok_arm_vfp (abfd, note); | |
9737 | else | |
9738 | return TRUE; | |
9739 | ||
652451f8 YZ |
9740 | case NT_ARM_TLS: |
9741 | if (note->namesz == 6 | |
9742 | && strcmp (note->namedata, "LINUX") == 0) | |
9743 | return elfcore_grok_aarch_tls (abfd, note); | |
9744 | else | |
9745 | return TRUE; | |
9746 | ||
9747 | case NT_ARM_HW_BREAK: | |
9748 | if (note->namesz == 6 | |
9749 | && strcmp (note->namedata, "LINUX") == 0) | |
9750 | return elfcore_grok_aarch_hw_break (abfd, note); | |
9751 | else | |
9752 | return TRUE; | |
9753 | ||
9754 | case NT_ARM_HW_WATCH: | |
9755 | if (note->namesz == 6 | |
9756 | && strcmp (note->namedata, "LINUX") == 0) | |
9757 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
9758 | else | |
9759 | return TRUE; | |
9760 | ||
252b5132 RH |
9761 | case NT_PRPSINFO: |
9762 | case NT_PSINFO: | |
bb0082d6 AM |
9763 | if (bed->elf_backend_grok_psinfo) |
9764 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 9765 | return TRUE; |
bb0082d6 | 9766 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 9767 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 9768 | #else |
b34976b6 | 9769 | return TRUE; |
252b5132 | 9770 | #endif |
3333a7c3 RM |
9771 | |
9772 | case NT_AUXV: | |
9773 | { | |
117ed4f8 AM |
9774 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
9775 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
9776 | |
9777 | if (sect == NULL) | |
9778 | return FALSE; | |
eea6121a | 9779 | sect->size = note->descsz; |
3333a7c3 | 9780 | sect->filepos = note->descpos; |
3333a7c3 RM |
9781 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
9782 | ||
9783 | return TRUE; | |
9784 | } | |
9015683b | 9785 | |
451b7c33 TT |
9786 | case NT_FILE: |
9787 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
9788 | note); | |
9789 | ||
9015683b TT |
9790 | case NT_SIGINFO: |
9791 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
9792 | note); | |
5b2c414d | 9793 | |
252b5132 RH |
9794 | } |
9795 | } | |
9796 | ||
718175fa JK |
9797 | static bfd_boolean |
9798 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
9799 | { | |
c74f7d1c | 9800 | struct bfd_build_id* build_id; |
30e8ee25 AM |
9801 | |
9802 | if (note->descsz == 0) | |
9803 | return FALSE; | |
9804 | ||
c74f7d1c JT |
9805 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
9806 | if (build_id == NULL) | |
718175fa JK |
9807 | return FALSE; |
9808 | ||
c74f7d1c JT |
9809 | build_id->size = note->descsz; |
9810 | memcpy (build_id->data, note->descdata, note->descsz); | |
9811 | abfd->build_id = build_id; | |
718175fa JK |
9812 | |
9813 | return TRUE; | |
9814 | } | |
9815 | ||
9816 | static bfd_boolean | |
9817 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
9818 | { | |
9819 | switch (note->type) | |
9820 | { | |
9821 | default: | |
9822 | return TRUE; | |
9823 | ||
46bed679 L |
9824 | case NT_GNU_PROPERTY_TYPE_0: |
9825 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
9826 | ||
718175fa JK |
9827 | case NT_GNU_BUILD_ID: |
9828 | return elfobj_grok_gnu_build_id (abfd, note); | |
9829 | } | |
9830 | } | |
9831 | ||
e21e5835 NC |
9832 | static bfd_boolean |
9833 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
9834 | { | |
9835 | struct sdt_note *cur = | |
9836 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
9837 | + note->descsz); | |
9838 | ||
9839 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
9840 | cur->size = (bfd_size_type) note->descsz; | |
9841 | memcpy (cur->data, note->descdata, note->descsz); | |
9842 | ||
9843 | elf_tdata (abfd)->sdt_note_head = cur; | |
9844 | ||
9845 | return TRUE; | |
9846 | } | |
9847 | ||
9848 | static bfd_boolean | |
9849 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
9850 | { | |
9851 | switch (note->type) | |
9852 | { | |
9853 | case NT_STAPSDT: | |
9854 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
9855 | ||
9856 | default: | |
9857 | return TRUE; | |
9858 | } | |
9859 | } | |
9860 | ||
aa1ed4a9 JB |
9861 | static bfd_boolean |
9862 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
9863 | { | |
9864 | size_t offset; | |
9865 | ||
b5430a3c | 9866 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 9867 | { |
b5430a3c | 9868 | case ELFCLASS32: |
0064d223 JB |
9869 | if (note->descsz < 108) |
9870 | return FALSE; | |
aa1ed4a9 JB |
9871 | break; |
9872 | ||
b5430a3c | 9873 | case ELFCLASS64: |
0064d223 JB |
9874 | if (note->descsz < 120) |
9875 | return FALSE; | |
aa1ed4a9 JB |
9876 | break; |
9877 | ||
9878 | default: | |
9879 | return FALSE; | |
9880 | } | |
9881 | ||
0064d223 JB |
9882 | /* Check for version 1 in pr_version. */ |
9883 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
9884 | return FALSE; | |
80a04378 | 9885 | |
0064d223 JB |
9886 | offset = 4; |
9887 | ||
9888 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 9889 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
9890 | offset += 4; |
9891 | else | |
9892 | { | |
9893 | offset += 4; /* Padding before pr_psinfosz. */ | |
9894 | offset += 8; | |
9895 | } | |
9896 | ||
aa1ed4a9 JB |
9897 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
9898 | elf_tdata (abfd)->core->program | |
9899 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
9900 | offset += 17; | |
9901 | ||
9902 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
9903 | elf_tdata (abfd)->core->command | |
9904 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
9905 | offset += 81; |
9906 | ||
9907 | /* Padding before pr_pid. */ | |
9908 | offset += 2; | |
9909 | ||
9910 | /* The pr_pid field was added in version "1a". */ | |
9911 | if (note->descsz < offset + 4) | |
9912 | return TRUE; | |
9913 | ||
9914 | elf_tdata (abfd)->core->pid | |
9915 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
9916 | |
9917 | return TRUE; | |
9918 | } | |
9919 | ||
9920 | static bfd_boolean | |
9921 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
9922 | { | |
9923 | size_t offset; | |
9924 | size_t size; | |
24d3e51b | 9925 | size_t min_size; |
aa1ed4a9 | 9926 | |
24d3e51b NC |
9927 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
9928 | Also compute minimum size of this note. */ | |
b5430a3c | 9929 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 9930 | { |
b5430a3c | 9931 | case ELFCLASS32: |
24d3e51b NC |
9932 | offset = 4 + 4; |
9933 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
9934 | break; |
9935 | ||
b5430a3c | 9936 | case ELFCLASS64: |
24d3e51b NC |
9937 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
9938 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
9939 | break; |
9940 | ||
9941 | default: | |
9942 | return FALSE; | |
9943 | } | |
9944 | ||
24d3e51b NC |
9945 | if (note->descsz < min_size) |
9946 | return FALSE; | |
9947 | ||
9948 | /* Check for version 1 in pr_version. */ | |
9949 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
9950 | return FALSE; | |
aa1ed4a9 | 9951 | |
24d3e51b NC |
9952 | /* Extract size of pr_reg from pr_gregsetsz. */ |
9953 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 9954 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
9955 | { |
9956 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
9957 | offset += 4 * 2; | |
9958 | } | |
b5430a3c | 9959 | else |
24d3e51b NC |
9960 | { |
9961 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
9962 | offset += 8 * 2; | |
9963 | } | |
aa1ed4a9 | 9964 | |
24d3e51b | 9965 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
9966 | offset += 4; |
9967 | ||
24d3e51b | 9968 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
9969 | if (elf_tdata (abfd)->core->signal == 0) |
9970 | elf_tdata (abfd)->core->signal | |
9971 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
9972 | offset += 4; | |
9973 | ||
24d3e51b | 9974 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
9975 | elf_tdata (abfd)->core->lwpid |
9976 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
9977 | offset += 4; | |
9978 | ||
24d3e51b | 9979 | /* Padding before pr_reg. */ |
b5430a3c | 9980 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
9981 | offset += 4; |
9982 | ||
24d3e51b NC |
9983 | /* Make sure that there is enough data remaining in the note. */ |
9984 | if ((note->descsz - offset) < size) | |
9985 | return FALSE; | |
9986 | ||
aa1ed4a9 JB |
9987 | /* Make a ".reg/999" section and a ".reg" section. */ |
9988 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
9989 | size, note->descpos + offset); | |
9990 | } | |
9991 | ||
9992 | static bfd_boolean | |
9993 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
9994 | { | |
544c67cd JB |
9995 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9996 | ||
aa1ed4a9 JB |
9997 | switch (note->type) |
9998 | { | |
9999 | case NT_PRSTATUS: | |
544c67cd JB |
10000 | if (bed->elf_backend_grok_freebsd_prstatus) |
10001 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10002 | return TRUE; | |
aa1ed4a9 JB |
10003 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10004 | ||
10005 | case NT_FPREGSET: | |
10006 | return elfcore_grok_prfpreg (abfd, note); | |
10007 | ||
10008 | case NT_PRPSINFO: | |
10009 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10010 | ||
10011 | case NT_FREEBSD_THRMISC: | |
10012 | if (note->namesz == 8) | |
10013 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10014 | else | |
10015 | return TRUE; | |
10016 | ||
3350c5f5 JB |
10017 | case NT_FREEBSD_PROCSTAT_AUXV: |
10018 | { | |
10019 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10020 | SEC_HAS_CONTENTS); | |
10021 | ||
10022 | if (sect == NULL) | |
10023 | return FALSE; | |
10024 | sect->size = note->descsz - 4; | |
10025 | sect->filepos = note->descpos + 4; | |
10026 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10027 | ||
10028 | return TRUE; | |
10029 | } | |
10030 | ||
aa1ed4a9 JB |
10031 | case NT_X86_XSTATE: |
10032 | if (note->namesz == 8) | |
10033 | return elfcore_grok_xstatereg (abfd, note); | |
10034 | else | |
10035 | return TRUE; | |
10036 | ||
e6f3b9c3 JB |
10037 | case NT_FREEBSD_PTLWPINFO: |
10038 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10039 | note); | |
10040 | ||
6d5be5d6 JB |
10041 | case NT_ARM_VFP: |
10042 | return elfcore_grok_arm_vfp (abfd, note); | |
10043 | ||
aa1ed4a9 JB |
10044 | default: |
10045 | return TRUE; | |
10046 | } | |
10047 | } | |
10048 | ||
b34976b6 | 10049 | static bfd_boolean |
217aa764 | 10050 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10051 | { |
10052 | char *cp; | |
10053 | ||
10054 | cp = strchr (note->namedata, '@'); | |
10055 | if (cp != NULL) | |
10056 | { | |
d2b64500 | 10057 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10058 | return TRUE; |
50b2bdb7 | 10059 | } |
b34976b6 | 10060 | return FALSE; |
50b2bdb7 AM |
10061 | } |
10062 | ||
b34976b6 | 10063 | static bfd_boolean |
217aa764 | 10064 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10065 | { |
80a04378 NC |
10066 | if (note->descsz <= 0x7c + 31) |
10067 | return FALSE; | |
10068 | ||
50b2bdb7 | 10069 | /* Signal number at offset 0x08. */ |
228e534f | 10070 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10071 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10072 | ||
10073 | /* Process ID at offset 0x50. */ | |
228e534f | 10074 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10075 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10076 | ||
10077 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10078 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10079 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10080 | ||
7720ba9f MK |
10081 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10082 | note); | |
50b2bdb7 AM |
10083 | } |
10084 | ||
b34976b6 | 10085 | static bfd_boolean |
217aa764 | 10086 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10087 | { |
10088 | int lwp; | |
10089 | ||
10090 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10091 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10092 | |
b4db1224 | 10093 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
10094 | { |
10095 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
10096 | find this note before any of the others, which is fine, |
10097 | since the kernel writes this note out first when it | |
10098 | creates a core file. */ | |
47d9a591 | 10099 | |
50b2bdb7 AM |
10100 | return elfcore_grok_netbsd_procinfo (abfd, note); |
10101 | } | |
10102 | ||
b4db1224 JT |
10103 | /* As of Jan 2002 there are no other machine-independent notes |
10104 | defined for NetBSD core files. If the note type is less | |
10105 | than the start of the machine-dependent note types, we don't | |
10106 | understand it. */ | |
47d9a591 | 10107 | |
b4db1224 | 10108 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10109 | return TRUE; |
50b2bdb7 AM |
10110 | |
10111 | ||
10112 | switch (bfd_get_arch (abfd)) | |
10113 | { | |
08a40648 AM |
10114 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10115 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10116 | |
10117 | case bfd_arch_alpha: | |
10118 | case bfd_arch_sparc: | |
10119 | switch (note->type) | |
08a40648 AM |
10120 | { |
10121 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10122 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10123 | |
08a40648 AM |
10124 | case NT_NETBSDCORE_FIRSTMACH+2: |
10125 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10126 | |
08a40648 AM |
10127 | default: |
10128 | return TRUE; | |
10129 | } | |
50b2bdb7 | 10130 | |
08a40648 AM |
10131 | /* On all other arch's, PT_GETREGS == mach+1 and |
10132 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10133 | |
10134 | default: | |
10135 | switch (note->type) | |
08a40648 AM |
10136 | { |
10137 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10138 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10139 | |
08a40648 AM |
10140 | case NT_NETBSDCORE_FIRSTMACH+3: |
10141 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10142 | |
08a40648 AM |
10143 | default: |
10144 | return TRUE; | |
10145 | } | |
50b2bdb7 AM |
10146 | } |
10147 | /* NOTREACHED */ | |
10148 | } | |
10149 | ||
67cc5033 MK |
10150 | static bfd_boolean |
10151 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10152 | { | |
80a04378 NC |
10153 | if (note->descsz <= 0x48 + 31) |
10154 | return FALSE; | |
10155 | ||
67cc5033 | 10156 | /* Signal number at offset 0x08. */ |
228e534f | 10157 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10158 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10159 | ||
10160 | /* Process ID at offset 0x20. */ | |
228e534f | 10161 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10162 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10163 | ||
10164 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10165 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10166 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10167 | ||
10168 | return TRUE; | |
10169 | } | |
10170 | ||
10171 | static bfd_boolean | |
10172 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10173 | { | |
10174 | if (note->type == NT_OPENBSD_PROCINFO) | |
10175 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10176 | ||
10177 | if (note->type == NT_OPENBSD_REGS) | |
10178 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10179 | ||
10180 | if (note->type == NT_OPENBSD_FPREGS) | |
10181 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10182 | ||
10183 | if (note->type == NT_OPENBSD_XFPREGS) | |
10184 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10185 | ||
10186 | if (note->type == NT_OPENBSD_AUXV) | |
10187 | { | |
10188 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10189 | SEC_HAS_CONTENTS); | |
10190 | ||
10191 | if (sect == NULL) | |
10192 | return FALSE; | |
10193 | sect->size = note->descsz; | |
10194 | sect->filepos = note->descpos; | |
10195 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10196 | ||
10197 | return TRUE; | |
10198 | } | |
10199 | ||
10200 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10201 | { | |
10202 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10203 | SEC_HAS_CONTENTS); | |
10204 | ||
10205 | if (sect == NULL) | |
10206 | return FALSE; | |
10207 | sect->size = note->descsz; | |
10208 | sect->filepos = note->descpos; | |
10209 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10210 | ||
10211 | return TRUE; | |
10212 | } | |
10213 | ||
10214 | return TRUE; | |
10215 | } | |
10216 | ||
07c6e936 | 10217 | static bfd_boolean |
d3fd4074 | 10218 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10219 | { |
10220 | void *ddata = note->descdata; | |
10221 | char buf[100]; | |
10222 | char *name; | |
10223 | asection *sect; | |
f8843e87 AM |
10224 | short sig; |
10225 | unsigned flags; | |
07c6e936 | 10226 | |
80a04378 NC |
10227 | if (note->descsz < 16) |
10228 | return FALSE; | |
10229 | ||
07c6e936 | 10230 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10231 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10232 | |
f8843e87 AM |
10233 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10234 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10235 | ||
10236 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10237 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10238 | |
10239 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10240 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10241 | { | |
228e534f AM |
10242 | elf_tdata (abfd)->core->signal = sig; |
10243 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10244 | } |
07c6e936 | 10245 | |
f8843e87 AM |
10246 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10247 | do not come from signals so we make sure we set the current | |
10248 | thread just in case. */ | |
10249 | if (flags & 0x00000080) | |
228e534f | 10250 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10251 | |
10252 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10253 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10254 | |
a50b1753 | 10255 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10256 | if (name == NULL) |
10257 | return FALSE; | |
10258 | strcpy (name, buf); | |
10259 | ||
117ed4f8 | 10260 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10261 | if (sect == NULL) |
10262 | return FALSE; | |
10263 | ||
07d6d2b8 AM |
10264 | sect->size = note->descsz; |
10265 | sect->filepos = note->descpos; | |
07c6e936 NC |
10266 | sect->alignment_power = 2; |
10267 | ||
10268 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10269 | } | |
10270 | ||
10271 | static bfd_boolean | |
d69f560c KW |
10272 | elfcore_grok_nto_regs (bfd *abfd, |
10273 | Elf_Internal_Note *note, | |
d3fd4074 | 10274 | long tid, |
d69f560c | 10275 | char *base) |
07c6e936 NC |
10276 | { |
10277 | char buf[100]; | |
10278 | char *name; | |
10279 | asection *sect; | |
10280 | ||
d69f560c | 10281 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10282 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10283 | |
a50b1753 | 10284 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10285 | if (name == NULL) |
10286 | return FALSE; | |
10287 | strcpy (name, buf); | |
10288 | ||
117ed4f8 | 10289 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10290 | if (sect == NULL) |
10291 | return FALSE; | |
10292 | ||
07d6d2b8 AM |
10293 | sect->size = note->descsz; |
10294 | sect->filepos = note->descpos; | |
07c6e936 NC |
10295 | sect->alignment_power = 2; |
10296 | ||
f8843e87 | 10297 | /* This is the current thread. */ |
228e534f | 10298 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10299 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10300 | |
10301 | return TRUE; | |
07c6e936 NC |
10302 | } |
10303 | ||
10304 | #define BFD_QNT_CORE_INFO 7 | |
10305 | #define BFD_QNT_CORE_STATUS 8 | |
10306 | #define BFD_QNT_CORE_GREG 9 | |
10307 | #define BFD_QNT_CORE_FPREG 10 | |
10308 | ||
10309 | static bfd_boolean | |
217aa764 | 10310 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10311 | { |
10312 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10313 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10314 | function. */ |
d3fd4074 | 10315 | static long tid = 1; |
07c6e936 NC |
10316 | |
10317 | switch (note->type) | |
10318 | { | |
d69f560c KW |
10319 | case BFD_QNT_CORE_INFO: |
10320 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10321 | case BFD_QNT_CORE_STATUS: | |
10322 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10323 | case BFD_QNT_CORE_GREG: | |
10324 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10325 | case BFD_QNT_CORE_FPREG: | |
10326 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10327 | default: | |
10328 | return TRUE; | |
07c6e936 NC |
10329 | } |
10330 | } | |
10331 | ||
b15fa79e AM |
10332 | static bfd_boolean |
10333 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10334 | { | |
10335 | char *name; | |
10336 | asection *sect; | |
10337 | size_t len; | |
10338 | ||
10339 | /* Use note name as section name. */ | |
10340 | len = note->namesz; | |
a50b1753 | 10341 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10342 | if (name == NULL) |
10343 | return FALSE; | |
10344 | memcpy (name, note->namedata, len); | |
10345 | name[len - 1] = '\0'; | |
10346 | ||
10347 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10348 | if (sect == NULL) | |
10349 | return FALSE; | |
10350 | ||
07d6d2b8 AM |
10351 | sect->size = note->descsz; |
10352 | sect->filepos = note->descpos; | |
b15fa79e AM |
10353 | sect->alignment_power = 1; |
10354 | ||
10355 | return TRUE; | |
10356 | } | |
10357 | ||
7c76fa91 MS |
10358 | /* Function: elfcore_write_note |
10359 | ||
47d9a591 | 10360 | Inputs: |
a39f3346 | 10361 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10362 | name of note |
10363 | type of note | |
10364 | data for note | |
10365 | size of data for note | |
10366 | ||
a39f3346 AM |
10367 | Writes note to end of buffer. ELF64 notes are written exactly as |
10368 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10369 | that they ought to have 8-byte namesz and descsz field, and have | |
10370 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10371 | ||
7c76fa91 | 10372 | Return: |
a39f3346 | 10373 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10374 | |
10375 | char * | |
a39f3346 | 10376 | elfcore_write_note (bfd *abfd, |
217aa764 | 10377 | char *buf, |
a39f3346 | 10378 | int *bufsiz, |
217aa764 | 10379 | const char *name, |
a39f3346 | 10380 | int type, |
217aa764 | 10381 | const void *input, |
a39f3346 | 10382 | int size) |
7c76fa91 MS |
10383 | { |
10384 | Elf_External_Note *xnp; | |
d4c88bbb | 10385 | size_t namesz; |
d4c88bbb | 10386 | size_t newspace; |
a39f3346 | 10387 | char *dest; |
7c76fa91 | 10388 | |
d4c88bbb | 10389 | namesz = 0; |
d4c88bbb | 10390 | if (name != NULL) |
a39f3346 | 10391 | namesz = strlen (name) + 1; |
d4c88bbb | 10392 | |
a39f3346 | 10393 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10394 | |
a50b1753 | 10395 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10396 | if (buf == NULL) |
10397 | return buf; | |
a39f3346 | 10398 | dest = buf + *bufsiz; |
7c76fa91 MS |
10399 | *bufsiz += newspace; |
10400 | xnp = (Elf_External_Note *) dest; | |
10401 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10402 | H_PUT_32 (abfd, size, xnp->descsz); | |
10403 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10404 | dest = xnp->name; |
10405 | if (name != NULL) | |
10406 | { | |
10407 | memcpy (dest, name, namesz); | |
10408 | dest += namesz; | |
a39f3346 | 10409 | while (namesz & 3) |
d4c88bbb AM |
10410 | { |
10411 | *dest++ = '\0'; | |
a39f3346 | 10412 | ++namesz; |
d4c88bbb AM |
10413 | } |
10414 | } | |
10415 | memcpy (dest, input, size); | |
a39f3346 AM |
10416 | dest += size; |
10417 | while (size & 3) | |
10418 | { | |
10419 | *dest++ = '\0'; | |
10420 | ++size; | |
10421 | } | |
10422 | return buf; | |
7c76fa91 MS |
10423 | } |
10424 | ||
7c76fa91 | 10425 | char * |
217aa764 AM |
10426 | elfcore_write_prpsinfo (bfd *abfd, |
10427 | char *buf, | |
10428 | int *bufsiz, | |
10429 | const char *fname, | |
10430 | const char *psargs) | |
7c76fa91 | 10431 | { |
183e98be AM |
10432 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10433 | ||
10434 | if (bed->elf_backend_write_core_note != NULL) | |
10435 | { | |
10436 | char *ret; | |
10437 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10438 | NT_PRPSINFO, fname, psargs); | |
10439 | if (ret != NULL) | |
10440 | return ret; | |
10441 | } | |
7c76fa91 | 10442 | |
1f20dca5 | 10443 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
183e98be AM |
10444 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
10445 | if (bed->s->elfclass == ELFCLASS32) | |
10446 | { | |
10447 | #if defined (HAVE_PSINFO32_T) | |
10448 | psinfo32_t data; | |
10449 | int note_type = NT_PSINFO; | |
10450 | #else | |
10451 | prpsinfo32_t data; | |
10452 | int note_type = NT_PRPSINFO; | |
10453 | #endif | |
10454 | ||
10455 | memset (&data, 0, sizeof (data)); | |
10456 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10457 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10458 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10459 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
10460 | } |
10461 | else | |
10462 | #endif | |
10463 | { | |
7c76fa91 | 10464 | #if defined (HAVE_PSINFO_T) |
183e98be AM |
10465 | psinfo_t data; |
10466 | int note_type = NT_PSINFO; | |
7c76fa91 | 10467 | #else |
183e98be AM |
10468 | prpsinfo_t data; |
10469 | int note_type = NT_PRPSINFO; | |
7c76fa91 MS |
10470 | #endif |
10471 | ||
183e98be AM |
10472 | memset (&data, 0, sizeof (data)); |
10473 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10474 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10475 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10476 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 10477 | } |
7c76fa91 MS |
10478 | #endif /* PSINFO_T or PRPSINFO_T */ |
10479 | ||
1f20dca5 UW |
10480 | free (buf); |
10481 | return NULL; | |
10482 | } | |
10483 | ||
70a38d42 SDJ |
10484 | char * |
10485 | elfcore_write_linux_prpsinfo32 | |
10486 | (bfd *abfd, char *buf, int *bufsiz, | |
10487 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10488 | { | |
a2f63b2e MR |
10489 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
10490 | { | |
10491 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
10492 | ||
10493 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
10494 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10495 | &data, sizeof (data)); | |
10496 | } | |
10497 | else | |
10498 | { | |
10499 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 10500 | |
a2f63b2e MR |
10501 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
10502 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10503 | &data, sizeof (data)); | |
10504 | } | |
70a38d42 SDJ |
10505 | } |
10506 | ||
10507 | char * | |
10508 | elfcore_write_linux_prpsinfo64 | |
10509 | (bfd *abfd, char *buf, int *bufsiz, | |
10510 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10511 | { | |
3c9a7b0d MR |
10512 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
10513 | { | |
10514 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
10515 | ||
10516 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
10517 | return elfcore_write_note (abfd, buf, bufsiz, | |
10518 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10519 | } | |
10520 | else | |
10521 | { | |
10522 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 10523 | |
3c9a7b0d MR |
10524 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
10525 | return elfcore_write_note (abfd, buf, bufsiz, | |
10526 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10527 | } | |
70a38d42 SDJ |
10528 | } |
10529 | ||
7c76fa91 | 10530 | char * |
217aa764 AM |
10531 | elfcore_write_prstatus (bfd *abfd, |
10532 | char *buf, | |
10533 | int *bufsiz, | |
10534 | long pid, | |
10535 | int cursig, | |
10536 | const void *gregs) | |
7c76fa91 | 10537 | { |
183e98be | 10538 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 10539 | |
183e98be AM |
10540 | if (bed->elf_backend_write_core_note != NULL) |
10541 | { | |
10542 | char *ret; | |
10543 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10544 | NT_PRSTATUS, | |
10545 | pid, cursig, gregs); | |
10546 | if (ret != NULL) | |
10547 | return ret; | |
10548 | } | |
10549 | ||
1f20dca5 | 10550 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
10551 | #if defined (HAVE_PRSTATUS32_T) |
10552 | if (bed->s->elfclass == ELFCLASS32) | |
10553 | { | |
10554 | prstatus32_t prstat; | |
10555 | ||
10556 | memset (&prstat, 0, sizeof (prstat)); | |
10557 | prstat.pr_pid = pid; | |
10558 | prstat.pr_cursig = cursig; | |
10559 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10560 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10561 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
10562 | } | |
10563 | else | |
10564 | #endif | |
10565 | { | |
10566 | prstatus_t prstat; | |
10567 | ||
10568 | memset (&prstat, 0, sizeof (prstat)); | |
10569 | prstat.pr_pid = pid; | |
10570 | prstat.pr_cursig = cursig; | |
10571 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10572 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10573 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
10574 | } | |
7c76fa91 MS |
10575 | #endif /* HAVE_PRSTATUS_T */ |
10576 | ||
1f20dca5 UW |
10577 | free (buf); |
10578 | return NULL; | |
10579 | } | |
10580 | ||
51316059 MS |
10581 | #if defined (HAVE_LWPSTATUS_T) |
10582 | char * | |
217aa764 AM |
10583 | elfcore_write_lwpstatus (bfd *abfd, |
10584 | char *buf, | |
10585 | int *bufsiz, | |
10586 | long pid, | |
10587 | int cursig, | |
10588 | const void *gregs) | |
51316059 MS |
10589 | { |
10590 | lwpstatus_t lwpstat; | |
183e98be | 10591 | const char *note_name = "CORE"; |
51316059 MS |
10592 | |
10593 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
10594 | lwpstat.pr_lwpid = pid >> 16; | |
10595 | lwpstat.pr_cursig = cursig; | |
10596 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 10597 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
10598 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
10599 | #if !defined(gregs) | |
10600 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
10601 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
10602 | #else | |
10603 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
10604 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
10605 | #endif | |
10606 | #endif | |
47d9a591 | 10607 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
10608 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
10609 | } | |
10610 | #endif /* HAVE_LWPSTATUS_T */ | |
10611 | ||
7c76fa91 MS |
10612 | #if defined (HAVE_PSTATUS_T) |
10613 | char * | |
217aa764 AM |
10614 | elfcore_write_pstatus (bfd *abfd, |
10615 | char *buf, | |
10616 | int *bufsiz, | |
10617 | long pid, | |
6c10990d NC |
10618 | int cursig ATTRIBUTE_UNUSED, |
10619 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 10620 | { |
183e98be AM |
10621 | const char *note_name = "CORE"; |
10622 | #if defined (HAVE_PSTATUS32_T) | |
10623 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 10624 | |
183e98be AM |
10625 | if (bed->s->elfclass == ELFCLASS32) |
10626 | { | |
10627 | pstatus32_t pstat; | |
10628 | ||
10629 | memset (&pstat, 0, sizeof (pstat)); | |
10630 | pstat.pr_pid = pid & 0xffff; | |
10631 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
10632 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
10633 | return buf; | |
10634 | } | |
10635 | else | |
10636 | #endif | |
10637 | { | |
10638 | pstatus_t pstat; | |
10639 | ||
10640 | memset (&pstat, 0, sizeof (pstat)); | |
10641 | pstat.pr_pid = pid & 0xffff; | |
10642 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
10643 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
10644 | return buf; | |
10645 | } | |
7c76fa91 MS |
10646 | } |
10647 | #endif /* HAVE_PSTATUS_T */ | |
10648 | ||
10649 | char * | |
217aa764 AM |
10650 | elfcore_write_prfpreg (bfd *abfd, |
10651 | char *buf, | |
10652 | int *bufsiz, | |
10653 | const void *fpregs, | |
10654 | int size) | |
7c76fa91 | 10655 | { |
183e98be | 10656 | const char *note_name = "CORE"; |
47d9a591 | 10657 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
10658 | note_name, NT_FPREGSET, fpregs, size); |
10659 | } | |
10660 | ||
10661 | char * | |
217aa764 AM |
10662 | elfcore_write_prxfpreg (bfd *abfd, |
10663 | char *buf, | |
10664 | int *bufsiz, | |
10665 | const void *xfpregs, | |
10666 | int size) | |
7c76fa91 MS |
10667 | { |
10668 | char *note_name = "LINUX"; | |
47d9a591 | 10669 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
10670 | note_name, NT_PRXFPREG, xfpregs, size); |
10671 | } | |
10672 | ||
4339cae0 L |
10673 | char * |
10674 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
10675 | const void *xfpregs, int size) | |
10676 | { | |
97de3545 JB |
10677 | char *note_name; |
10678 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
10679 | note_name = "FreeBSD"; | |
10680 | else | |
10681 | note_name = "LINUX"; | |
4339cae0 L |
10682 | return elfcore_write_note (abfd, buf, bufsiz, |
10683 | note_name, NT_X86_XSTATE, xfpregs, size); | |
10684 | } | |
10685 | ||
97753bd5 AM |
10686 | char * |
10687 | elfcore_write_ppc_vmx (bfd *abfd, | |
10688 | char *buf, | |
10689 | int *bufsiz, | |
10690 | const void *ppc_vmx, | |
10691 | int size) | |
10692 | { | |
10693 | char *note_name = "LINUX"; | |
10694 | return elfcore_write_note (abfd, buf, bufsiz, | |
10695 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
10696 | } | |
10697 | ||
89eeb0bc LM |
10698 | char * |
10699 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
10700 | char *buf, |
10701 | int *bufsiz, | |
10702 | const void *ppc_vsx, | |
10703 | int size) | |
89eeb0bc LM |
10704 | { |
10705 | char *note_name = "LINUX"; | |
10706 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10707 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
10708 | } |
10709 | ||
0675e188 UW |
10710 | static char * |
10711 | elfcore_write_s390_high_gprs (bfd *abfd, | |
10712 | char *buf, | |
10713 | int *bufsiz, | |
10714 | const void *s390_high_gprs, | |
10715 | int size) | |
10716 | { | |
10717 | char *note_name = "LINUX"; | |
10718 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10719 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
10720 | s390_high_gprs, size); |
10721 | } | |
10722 | ||
d7eeb400 MS |
10723 | char * |
10724 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
10725 | char *buf, |
10726 | int *bufsiz, | |
10727 | const void *s390_timer, | |
10728 | int size) | |
d7eeb400 MS |
10729 | { |
10730 | char *note_name = "LINUX"; | |
10731 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10732 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
10733 | } |
10734 | ||
10735 | char * | |
10736 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
10737 | char *buf, |
10738 | int *bufsiz, | |
10739 | const void *s390_todcmp, | |
10740 | int size) | |
d7eeb400 MS |
10741 | { |
10742 | char *note_name = "LINUX"; | |
10743 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10744 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
10745 | } |
10746 | ||
10747 | char * | |
10748 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
10749 | char *buf, |
10750 | int *bufsiz, | |
10751 | const void *s390_todpreg, | |
10752 | int size) | |
d7eeb400 MS |
10753 | { |
10754 | char *note_name = "LINUX"; | |
10755 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10756 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
10757 | } |
10758 | ||
10759 | char * | |
10760 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
10761 | char *buf, |
10762 | int *bufsiz, | |
10763 | const void *s390_ctrs, | |
10764 | int size) | |
d7eeb400 MS |
10765 | { |
10766 | char *note_name = "LINUX"; | |
10767 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10768 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
10769 | } |
10770 | ||
10771 | char * | |
10772 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
10773 | char *buf, |
10774 | int *bufsiz, | |
10775 | const void *s390_prefix, | |
10776 | int size) | |
d7eeb400 MS |
10777 | { |
10778 | char *note_name = "LINUX"; | |
10779 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10780 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
10781 | } |
10782 | ||
355b81d9 UW |
10783 | char * |
10784 | elfcore_write_s390_last_break (bfd *abfd, | |
10785 | char *buf, | |
10786 | int *bufsiz, | |
10787 | const void *s390_last_break, | |
10788 | int size) | |
10789 | { | |
10790 | char *note_name = "LINUX"; | |
10791 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10792 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
10793 | s390_last_break, size); |
10794 | } | |
10795 | ||
10796 | char * | |
10797 | elfcore_write_s390_system_call (bfd *abfd, | |
10798 | char *buf, | |
10799 | int *bufsiz, | |
10800 | const void *s390_system_call, | |
10801 | int size) | |
10802 | { | |
10803 | char *note_name = "LINUX"; | |
10804 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10805 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
10806 | s390_system_call, size); |
10807 | } | |
10808 | ||
abb3f6cc NC |
10809 | char * |
10810 | elfcore_write_s390_tdb (bfd *abfd, | |
10811 | char *buf, | |
10812 | int *bufsiz, | |
10813 | const void *s390_tdb, | |
10814 | int size) | |
10815 | { | |
10816 | char *note_name = "LINUX"; | |
10817 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 10818 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
10819 | } |
10820 | ||
4ef9f41a AA |
10821 | char * |
10822 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
10823 | char *buf, | |
10824 | int *bufsiz, | |
10825 | const void *s390_vxrs_low, | |
10826 | int size) | |
10827 | { | |
10828 | char *note_name = "LINUX"; | |
10829 | return elfcore_write_note (abfd, buf, bufsiz, | |
10830 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
10831 | } | |
10832 | ||
10833 | char * | |
10834 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
10835 | char *buf, | |
10836 | int *bufsiz, | |
10837 | const void *s390_vxrs_high, | |
10838 | int size) | |
10839 | { | |
10840 | char *note_name = "LINUX"; | |
10841 | return elfcore_write_note (abfd, buf, bufsiz, | |
10842 | note_name, NT_S390_VXRS_HIGH, | |
10843 | s390_vxrs_high, size); | |
10844 | } | |
10845 | ||
88ab90e8 AA |
10846 | char * |
10847 | elfcore_write_s390_gs_cb (bfd *abfd, | |
10848 | char *buf, | |
10849 | int *bufsiz, | |
10850 | const void *s390_gs_cb, | |
10851 | int size) | |
10852 | { | |
10853 | char *note_name = "LINUX"; | |
10854 | return elfcore_write_note (abfd, buf, bufsiz, | |
10855 | note_name, NT_S390_GS_CB, | |
10856 | s390_gs_cb, size); | |
10857 | } | |
10858 | ||
10859 | char * | |
10860 | elfcore_write_s390_gs_bc (bfd *abfd, | |
10861 | char *buf, | |
10862 | int *bufsiz, | |
10863 | const void *s390_gs_bc, | |
10864 | int size) | |
10865 | { | |
10866 | char *note_name = "LINUX"; | |
10867 | return elfcore_write_note (abfd, buf, bufsiz, | |
10868 | note_name, NT_S390_GS_BC, | |
10869 | s390_gs_bc, size); | |
10870 | } | |
10871 | ||
faa9a424 UW |
10872 | char * |
10873 | elfcore_write_arm_vfp (bfd *abfd, | |
10874 | char *buf, | |
10875 | int *bufsiz, | |
10876 | const void *arm_vfp, | |
10877 | int size) | |
10878 | { | |
10879 | char *note_name = "LINUX"; | |
10880 | return elfcore_write_note (abfd, buf, bufsiz, | |
10881 | note_name, NT_ARM_VFP, arm_vfp, size); | |
10882 | } | |
10883 | ||
652451f8 YZ |
10884 | char * |
10885 | elfcore_write_aarch_tls (bfd *abfd, | |
10886 | char *buf, | |
10887 | int *bufsiz, | |
10888 | const void *aarch_tls, | |
10889 | int size) | |
10890 | { | |
10891 | char *note_name = "LINUX"; | |
10892 | return elfcore_write_note (abfd, buf, bufsiz, | |
10893 | note_name, NT_ARM_TLS, aarch_tls, size); | |
10894 | } | |
10895 | ||
10896 | char * | |
10897 | elfcore_write_aarch_hw_break (bfd *abfd, | |
10898 | char *buf, | |
10899 | int *bufsiz, | |
10900 | const void *aarch_hw_break, | |
10901 | int size) | |
10902 | { | |
10903 | char *note_name = "LINUX"; | |
10904 | return elfcore_write_note (abfd, buf, bufsiz, | |
10905 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
10906 | } | |
10907 | ||
10908 | char * | |
10909 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
10910 | char *buf, | |
10911 | int *bufsiz, | |
10912 | const void *aarch_hw_watch, | |
10913 | int size) | |
10914 | { | |
10915 | char *note_name = "LINUX"; | |
10916 | return elfcore_write_note (abfd, buf, bufsiz, | |
10917 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
10918 | } | |
10919 | ||
bb864ac1 CES |
10920 | char * |
10921 | elfcore_write_register_note (bfd *abfd, | |
10922 | char *buf, | |
10923 | int *bufsiz, | |
10924 | const char *section, | |
10925 | const void *data, | |
10926 | int size) | |
10927 | { | |
10928 | if (strcmp (section, ".reg2") == 0) | |
10929 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
10930 | if (strcmp (section, ".reg-xfp") == 0) | |
10931 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
10932 | if (strcmp (section, ".reg-xstate") == 0) |
10933 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
10934 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
10935 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
10936 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
10937 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
10938 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
10939 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
10940 | if (strcmp (section, ".reg-s390-timer") == 0) |
10941 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
10942 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
10943 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
10944 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
10945 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
10946 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
10947 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
10948 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
10949 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
10950 | if (strcmp (section, ".reg-s390-last-break") == 0) |
10951 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
10952 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
10953 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
10954 | if (strcmp (section, ".reg-s390-tdb") == 0) |
10955 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
10956 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
10957 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
10958 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
10959 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
10960 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
10961 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
10962 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
10963 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
10964 | if (strcmp (section, ".reg-arm-vfp") == 0) |
10965 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
10966 | if (strcmp (section, ".reg-aarch-tls") == 0) |
10967 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
10968 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
10969 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
10970 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
10971 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
10972 | return NULL; |
10973 | } | |
10974 | ||
b34976b6 | 10975 | static bfd_boolean |
276da9b3 L |
10976 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
10977 | size_t align) | |
252b5132 | 10978 | { |
c044fabd | 10979 | char *p; |
252b5132 | 10980 | |
276da9b3 L |
10981 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
10982 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
10983 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
10984 | align is less than 4, we use 4 byte alignment. */ | |
10985 | if (align < 4) | |
10986 | align = 4; | |
10987 | ||
252b5132 RH |
10988 | p = buf; |
10989 | while (p < buf + size) | |
10990 | { | |
c044fabd | 10991 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
10992 | Elf_Internal_Note in; |
10993 | ||
baea7ef1 AM |
10994 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
10995 | return FALSE; | |
10996 | ||
dc810e39 | 10997 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 10998 | |
dc810e39 | 10999 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11000 | in.namedata = xnp->name; |
baea7ef1 AM |
11001 | if (in.namesz > buf - in.namedata + size) |
11002 | return FALSE; | |
252b5132 | 11003 | |
dc810e39 | 11004 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11005 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11006 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11007 | if (in.descsz != 0 |
11008 | && (in.descdata >= buf + size | |
11009 | || in.descsz > buf - in.descdata + size)) | |
11010 | return FALSE; | |
252b5132 | 11011 | |
718175fa | 11012 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11013 | { |
718175fa JK |
11014 | default: |
11015 | return TRUE; | |
11016 | ||
11017 | case bfd_core: | |
f64e188b | 11018 | { |
8acbedd6 | 11019 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11020 | struct |
718175fa | 11021 | { |
f64e188b | 11022 | const char * string; |
8acbedd6 | 11023 | size_t len; |
f64e188b | 11024 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11025 | } |
f64e188b | 11026 | grokers[] = |
b15fa79e | 11027 | { |
8acbedd6 | 11028 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11029 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11030 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11031 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11032 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
11033 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 11034 | }; |
8acbedd6 | 11035 | #undef GROKER_ELEMENT |
f64e188b NC |
11036 | int i; |
11037 | ||
11038 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11039 | { |
11040 | if (in.namesz >= grokers[i].len | |
11041 | && strncmp (in.namedata, grokers[i].string, | |
11042 | grokers[i].len) == 0) | |
11043 | { | |
11044 | if (! grokers[i].func (abfd, & in)) | |
11045 | return FALSE; | |
11046 | break; | |
11047 | } | |
11048 | } | |
f64e188b NC |
11049 | break; |
11050 | } | |
718175fa JK |
11051 | |
11052 | case bfd_object: | |
11053 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11054 | { | |
11055 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11056 | return FALSE; | |
11057 | } | |
e21e5835 NC |
11058 | else if (in.namesz == sizeof "stapsdt" |
11059 | && strcmp (in.namedata, "stapsdt") == 0) | |
11060 | { | |
11061 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11062 | return FALSE; | |
11063 | } | |
718175fa | 11064 | break; |
08a40648 | 11065 | } |
252b5132 | 11066 | |
276da9b3 | 11067 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11068 | } |
11069 | ||
718175fa JK |
11070 | return TRUE; |
11071 | } | |
11072 | ||
11073 | static bfd_boolean | |
276da9b3 L |
11074 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11075 | size_t align) | |
718175fa JK |
11076 | { |
11077 | char *buf; | |
11078 | ||
957e1fc1 | 11079 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11080 | return TRUE; |
11081 | ||
11082 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11083 | return FALSE; | |
11084 | ||
f64e188b | 11085 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11086 | if (buf == NULL) |
11087 | return FALSE; | |
11088 | ||
f64e188b NC |
11089 | /* PR 17512: file: ec08f814 |
11090 | 0-termintate the buffer so that string searches will not overflow. */ | |
11091 | buf[size] = 0; | |
11092 | ||
718175fa | 11093 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11094 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11095 | { |
11096 | free (buf); | |
11097 | return FALSE; | |
11098 | } | |
11099 | ||
252b5132 | 11100 | free (buf); |
b34976b6 | 11101 | return TRUE; |
252b5132 | 11102 | } |
98d8431c JB |
11103 | \f |
11104 | /* Providing external access to the ELF program header table. */ | |
11105 | ||
11106 | /* Return an upper bound on the number of bytes required to store a | |
11107 | copy of ABFD's program header table entries. Return -1 if an error | |
11108 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11109 | |
98d8431c | 11110 | long |
217aa764 | 11111 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11112 | { |
11113 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11114 | { | |
11115 | bfd_set_error (bfd_error_wrong_format); | |
11116 | return -1; | |
11117 | } | |
11118 | ||
936e320b | 11119 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11120 | } |
11121 | ||
98d8431c JB |
11122 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11123 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11124 | defined in include/elf/internal.h. To find out how large the | |
11125 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11126 | ||
11127 | Return the number of program header table entries read, or -1 if an | |
11128 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11129 | |
98d8431c | 11130 | int |
217aa764 | 11131 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11132 | { |
11133 | int num_phdrs; | |
11134 | ||
11135 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11136 | { | |
11137 | bfd_set_error (bfd_error_wrong_format); | |
11138 | return -1; | |
11139 | } | |
11140 | ||
11141 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 11142 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
11143 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
11144 | ||
11145 | return num_phdrs; | |
11146 | } | |
ae4221d7 | 11147 | |
db6751f2 | 11148 | enum elf_reloc_type_class |
7e612e98 AM |
11149 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11150 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11151 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11152 | { |
11153 | return reloc_class_normal; | |
11154 | } | |
f8df10f4 | 11155 | |
47d9a591 | 11156 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11157 | relocation against a local symbol. */ |
11158 | ||
11159 | bfd_vma | |
217aa764 AM |
11160 | _bfd_elf_rela_local_sym (bfd *abfd, |
11161 | Elf_Internal_Sym *sym, | |
8517fae7 | 11162 | asection **psec, |
217aa764 | 11163 | Elf_Internal_Rela *rel) |
f8df10f4 | 11164 | { |
8517fae7 | 11165 | asection *sec = *psec; |
f8df10f4 JJ |
11166 | bfd_vma relocation; |
11167 | ||
11168 | relocation = (sec->output_section->vma | |
11169 | + sec->output_offset | |
11170 | + sym->st_value); | |
11171 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 11172 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11173 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11174 | { |
f8df10f4 | 11175 | rel->r_addend = |
8517fae7 | 11176 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11177 | elf_section_data (sec)->sec_info, |
753731ee AM |
11178 | sym->st_value + rel->r_addend); |
11179 | if (sec != *psec) | |
11180 | { | |
11181 | /* If we have changed the section, and our original section is | |
11182 | marked with SEC_EXCLUDE, it means that the original | |
11183 | SEC_MERGE section has been completely subsumed in some | |
11184 | other SEC_MERGE section. In this case, we need to leave | |
11185 | some info around for --emit-relocs. */ | |
11186 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
11187 | sec->kept_section = *psec; | |
11188 | sec = *psec; | |
11189 | } | |
8517fae7 AM |
11190 | rel->r_addend -= relocation; |
11191 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
11192 | } |
11193 | return relocation; | |
11194 | } | |
c629eae0 JJ |
11195 | |
11196 | bfd_vma | |
217aa764 AM |
11197 | _bfd_elf_rel_local_sym (bfd *abfd, |
11198 | Elf_Internal_Sym *sym, | |
11199 | asection **psec, | |
11200 | bfd_vma addend) | |
47d9a591 | 11201 | { |
c629eae0 JJ |
11202 | asection *sec = *psec; |
11203 | ||
dbaa2011 | 11204 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
11205 | return sym->st_value + addend; |
11206 | ||
11207 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 11208 | elf_section_data (sec)->sec_info, |
753731ee | 11209 | sym->st_value + addend); |
c629eae0 JJ |
11210 | } |
11211 | ||
37b01f6a DG |
11212 | /* Adjust an address within a section. Given OFFSET within SEC, return |
11213 | the new offset within the section, based upon changes made to the | |
11214 | section. Returns -1 if the offset is now invalid. | |
11215 | The offset (in abnd out) is in target sized bytes, however big a | |
11216 | byte may be. */ | |
11217 | ||
c629eae0 | 11218 | bfd_vma |
217aa764 | 11219 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 11220 | struct bfd_link_info *info, |
217aa764 AM |
11221 | asection *sec, |
11222 | bfd_vma offset) | |
c629eae0 | 11223 | { |
68bfbfcc | 11224 | switch (sec->sec_info_type) |
65765700 | 11225 | { |
dbaa2011 | 11226 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
11227 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
11228 | offset); | |
dbaa2011 | 11229 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 11230 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 11231 | |
65765700 | 11232 | default: |
310fd250 L |
11233 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
11234 | { | |
37b01f6a | 11235 | /* Reverse the offset. */ |
310fd250 L |
11236 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11237 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
11238 | |
11239 | /* address_size and sec->size are in octets. Convert | |
11240 | to bytes before subtracting the original offset. */ | |
11241 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 11242 | } |
65765700 JJ |
11243 | return offset; |
11244 | } | |
c629eae0 | 11245 | } |
3333a7c3 RM |
11246 | \f |
11247 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
11248 | reconstruct an ELF file by reading the segments out of remote memory | |
11249 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
11250 | points to. If not null, *LOADBASEP is filled in with the difference | |
11251 | between the VMAs from which the segments were read, and the VMAs the | |
11252 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
11253 | ||
11254 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
11255 | remote memory at target address VMA into the local buffer at MYADDR; it | |
11256 | should return zero on success or an `errno' code on failure. TEMPL must | |
11257 | be a BFD for an ELF target with the word size and byte order found in | |
11258 | the remote memory. */ | |
11259 | ||
11260 | bfd * | |
217aa764 AM |
11261 | bfd_elf_bfd_from_remote_memory |
11262 | (bfd *templ, | |
11263 | bfd_vma ehdr_vma, | |
f0a5d95a | 11264 | bfd_size_type size, |
217aa764 | 11265 | bfd_vma *loadbasep, |
fe78531d | 11266 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
11267 | { |
11268 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 11269 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 11270 | } |
4c45e5c9 JJ |
11271 | \f |
11272 | long | |
c9727e01 AM |
11273 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
11274 | long symcount ATTRIBUTE_UNUSED, | |
11275 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 11276 | long dynsymcount, |
c9727e01 AM |
11277 | asymbol **dynsyms, |
11278 | asymbol **ret) | |
4c45e5c9 JJ |
11279 | { |
11280 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
11281 | asection *relplt; | |
11282 | asymbol *s; | |
11283 | const char *relplt_name; | |
11284 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
11285 | arelent *p; | |
11286 | long count, i, n; | |
11287 | size_t size; | |
11288 | Elf_Internal_Shdr *hdr; | |
11289 | char *names; | |
11290 | asection *plt; | |
11291 | ||
8615f3f2 AM |
11292 | *ret = NULL; |
11293 | ||
90e3cdf2 JJ |
11294 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
11295 | return 0; | |
11296 | ||
8615f3f2 AM |
11297 | if (dynsymcount <= 0) |
11298 | return 0; | |
11299 | ||
4c45e5c9 JJ |
11300 | if (!bed->plt_sym_val) |
11301 | return 0; | |
11302 | ||
11303 | relplt_name = bed->relplt_name; | |
11304 | if (relplt_name == NULL) | |
d35fd659 | 11305 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
11306 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
11307 | if (relplt == NULL) | |
11308 | return 0; | |
11309 | ||
11310 | hdr = &elf_section_data (relplt)->this_hdr; | |
11311 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
11312 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
11313 | return 0; | |
11314 | ||
11315 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
11316 | if (plt == NULL) | |
11317 | return 0; | |
11318 | ||
11319 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 11320 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
11321 | return -1; |
11322 | ||
eea6121a | 11323 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
11324 | size = count * sizeof (asymbol); |
11325 | p = relplt->relocation; | |
cb53bf42 | 11326 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
11327 | { |
11328 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
11329 | if (p->addend != 0) | |
11330 | { | |
11331 | #ifdef BFD64 | |
11332 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
11333 | #else | |
11334 | size += sizeof ("+0x") - 1 + 8; | |
11335 | #endif | |
11336 | } | |
11337 | } | |
4c45e5c9 | 11338 | |
a50b1753 | 11339 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
11340 | if (s == NULL) |
11341 | return -1; | |
11342 | ||
11343 | names = (char *) (s + count); | |
11344 | p = relplt->relocation; | |
11345 | n = 0; | |
cb53bf42 | 11346 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
11347 | { |
11348 | size_t len; | |
11349 | bfd_vma addr; | |
11350 | ||
11351 | addr = bed->plt_sym_val (i, plt, p); | |
11352 | if (addr == (bfd_vma) -1) | |
11353 | continue; | |
11354 | ||
11355 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
11356 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
11357 | we are defining a symbol, ensure one of them is set. */ | |
11358 | if ((s->flags & BSF_LOCAL) == 0) | |
11359 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 11360 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
11361 | s->section = plt; |
11362 | s->value = addr - plt->vma; | |
11363 | s->name = names; | |
8f39ba8e | 11364 | s->udata.p = NULL; |
4c45e5c9 JJ |
11365 | len = strlen ((*p->sym_ptr_ptr)->name); |
11366 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
11367 | names += len; | |
041de40d AM |
11368 | if (p->addend != 0) |
11369 | { | |
1d770845 | 11370 | char buf[30], *a; |
d324f6d6 | 11371 | |
041de40d AM |
11372 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
11373 | names += sizeof ("+0x") - 1; | |
1d770845 L |
11374 | bfd_sprintf_vma (abfd, buf, p->addend); |
11375 | for (a = buf; *a == '0'; ++a) | |
11376 | ; | |
11377 | len = strlen (a); | |
11378 | memcpy (names, a, len); | |
11379 | names += len; | |
041de40d | 11380 | } |
4c45e5c9 JJ |
11381 | memcpy (names, "@plt", sizeof ("@plt")); |
11382 | names += sizeof ("@plt"); | |
8f39ba8e | 11383 | ++s, ++n; |
4c45e5c9 JJ |
11384 | } |
11385 | ||
11386 | return n; | |
11387 | } | |
3d7f7666 | 11388 | |
821e6ff6 AM |
11389 | /* It is only used by x86-64 so far. |
11390 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
11391 | but current usage would allow all of _bfd_std_section to be zero. */ |
11392 | static const asymbol lcomm_sym | |
11393 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 11394 | asection _bfd_elf_large_com_section |
7eacd66b | 11395 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 11396 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 11397 | |
d1036acb | 11398 | void |
78245035 L |
11399 | _bfd_elf_post_process_headers (bfd * abfd, |
11400 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
d1036acb L |
11401 | { |
11402 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
11403 | ||
11404 | i_ehdrp = elf_elfheader (abfd); | |
11405 | ||
11406 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
11407 | |
11408 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 11409 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 11410 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 11411 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 11412 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 11413 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 11414 | } |
fcb93ecf PB |
11415 | |
11416 | ||
11417 | /* Return TRUE for ELF symbol types that represent functions. | |
11418 | This is the default version of this function, which is sufficient for | |
d8045f23 | 11419 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
11420 | |
11421 | bfd_boolean | |
11422 | _bfd_elf_is_function_type (unsigned int type) | |
11423 | { | |
d8045f23 NC |
11424 | return (type == STT_FUNC |
11425 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 11426 | } |
9f296da3 | 11427 | |
aef36ac1 AM |
11428 | /* If the ELF symbol SYM might be a function in SEC, return the |
11429 | function size and set *CODE_OFF to the function's entry point, | |
11430 | otherwise return zero. */ | |
9f296da3 | 11431 | |
aef36ac1 AM |
11432 | bfd_size_type |
11433 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
11434 | bfd_vma *code_off) | |
9f296da3 | 11435 | { |
aef36ac1 AM |
11436 | bfd_size_type size; |
11437 | ||
ff9e0f5b | 11438 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
11439 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
11440 | || sym->section != sec) | |
11441 | return 0; | |
ff9e0f5b | 11442 | |
ff9e0f5b | 11443 | *code_off = sym->value; |
aef36ac1 AM |
11444 | size = 0; |
11445 | if (!(sym->flags & BSF_SYNTHETIC)) | |
11446 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
11447 | if (size == 0) | |
11448 | size = 1; | |
11449 | return size; | |
9f296da3 | 11450 | } |