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Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
b90efa5b | 3 | Copyright (C) 1993-2015 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" |
70a38d42 | 45 | #include "elf-linux-psinfo.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) ; |
718175fa JK |
55 | static bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type) ; |
56 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, | |
57 | file_ptr offset); | |
50b2bdb7 | 58 | |
252b5132 RH |
59 | /* Swap version information in and out. The version information is |
60 | currently size independent. If that ever changes, this code will | |
61 | need to move into elfcode.h. */ | |
62 | ||
63 | /* Swap in a Verdef structure. */ | |
64 | ||
65 | void | |
217aa764 AM |
66 | _bfd_elf_swap_verdef_in (bfd *abfd, |
67 | const Elf_External_Verdef *src, | |
68 | Elf_Internal_Verdef *dst) | |
252b5132 | 69 | { |
dc810e39 AM |
70 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
71 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
72 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
73 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
74 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
75 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
76 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
77 | } |
78 | ||
79 | /* Swap out a Verdef structure. */ | |
80 | ||
81 | void | |
217aa764 AM |
82 | _bfd_elf_swap_verdef_out (bfd *abfd, |
83 | const Elf_Internal_Verdef *src, | |
84 | Elf_External_Verdef *dst) | |
252b5132 | 85 | { |
dc810e39 AM |
86 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
87 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
88 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
89 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
90 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
91 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
92 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
93 | } |
94 | ||
95 | /* Swap in a Verdaux structure. */ | |
96 | ||
97 | void | |
217aa764 AM |
98 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
99 | const Elf_External_Verdaux *src, | |
100 | Elf_Internal_Verdaux *dst) | |
252b5132 | 101 | { |
dc810e39 AM |
102 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
103 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
104 | } |
105 | ||
106 | /* Swap out a Verdaux structure. */ | |
107 | ||
108 | void | |
217aa764 AM |
109 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
110 | const Elf_Internal_Verdaux *src, | |
111 | Elf_External_Verdaux *dst) | |
252b5132 | 112 | { |
dc810e39 AM |
113 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
114 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
115 | } |
116 | ||
117 | /* Swap in a Verneed structure. */ | |
118 | ||
119 | void | |
217aa764 AM |
120 | _bfd_elf_swap_verneed_in (bfd *abfd, |
121 | const Elf_External_Verneed *src, | |
122 | Elf_Internal_Verneed *dst) | |
252b5132 | 123 | { |
dc810e39 AM |
124 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
125 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
126 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
127 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
128 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
129 | } |
130 | ||
131 | /* Swap out a Verneed structure. */ | |
132 | ||
133 | void | |
217aa764 AM |
134 | _bfd_elf_swap_verneed_out (bfd *abfd, |
135 | const Elf_Internal_Verneed *src, | |
136 | Elf_External_Verneed *dst) | |
252b5132 | 137 | { |
dc810e39 AM |
138 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
139 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
140 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
141 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
142 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
143 | } |
144 | ||
145 | /* Swap in a Vernaux structure. */ | |
146 | ||
147 | void | |
217aa764 AM |
148 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
149 | const Elf_External_Vernaux *src, | |
150 | Elf_Internal_Vernaux *dst) | |
252b5132 | 151 | { |
dc810e39 AM |
152 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
153 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
154 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
155 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
156 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
157 | } |
158 | ||
159 | /* Swap out a Vernaux structure. */ | |
160 | ||
161 | void | |
217aa764 AM |
162 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
163 | const Elf_Internal_Vernaux *src, | |
164 | Elf_External_Vernaux *dst) | |
252b5132 | 165 | { |
dc810e39 AM |
166 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
167 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
168 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
169 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
170 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
171 | } |
172 | ||
173 | /* Swap in a Versym structure. */ | |
174 | ||
175 | void | |
217aa764 AM |
176 | _bfd_elf_swap_versym_in (bfd *abfd, |
177 | const Elf_External_Versym *src, | |
178 | Elf_Internal_Versym *dst) | |
252b5132 | 179 | { |
dc810e39 | 180 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
181 | } |
182 | ||
183 | /* Swap out a Versym structure. */ | |
184 | ||
185 | void | |
217aa764 AM |
186 | _bfd_elf_swap_versym_out (bfd *abfd, |
187 | const Elf_Internal_Versym *src, | |
188 | Elf_External_Versym *dst) | |
252b5132 | 189 | { |
dc810e39 | 190 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
191 | } |
192 | ||
193 | /* Standard ELF hash function. Do not change this function; you will | |
194 | cause invalid hash tables to be generated. */ | |
3a99b017 | 195 | |
252b5132 | 196 | unsigned long |
217aa764 | 197 | bfd_elf_hash (const char *namearg) |
252b5132 | 198 | { |
3a99b017 | 199 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
200 | unsigned long h = 0; |
201 | unsigned long g; | |
202 | int ch; | |
203 | ||
204 | while ((ch = *name++) != '\0') | |
205 | { | |
206 | h = (h << 4) + ch; | |
207 | if ((g = (h & 0xf0000000)) != 0) | |
208 | { | |
209 | h ^= g >> 24; | |
210 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
211 | this case and on some machines one insn instead of two. */ | |
212 | h ^= g; | |
213 | } | |
214 | } | |
32dfa85d | 215 | return h & 0xffffffff; |
252b5132 RH |
216 | } |
217 | ||
fdc90cb4 JJ |
218 | /* DT_GNU_HASH hash function. Do not change this function; you will |
219 | cause invalid hash tables to be generated. */ | |
220 | ||
221 | unsigned long | |
222 | bfd_elf_gnu_hash (const char *namearg) | |
223 | { | |
224 | const unsigned char *name = (const unsigned char *) namearg; | |
225 | unsigned long h = 5381; | |
226 | unsigned char ch; | |
227 | ||
228 | while ((ch = *name++) != '\0') | |
229 | h = (h << 5) + h + ch; | |
230 | return h & 0xffffffff; | |
231 | } | |
232 | ||
0c8d6e5c AM |
233 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
234 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 235 | bfd_boolean |
0c8d6e5c | 236 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 237 | size_t object_size, |
4dfe6ac6 | 238 | enum elf_target_id object_id) |
252b5132 | 239 | { |
0ffa91dd NC |
240 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
241 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
242 | if (abfd->tdata.any == NULL) | |
243 | return FALSE; | |
252b5132 | 244 | |
0ffa91dd | 245 | elf_object_id (abfd) = object_id; |
c0355132 AM |
246 | if (abfd->direction != read_direction) |
247 | { | |
248 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
249 | if (o == NULL) | |
250 | return FALSE; | |
251 | elf_tdata (abfd)->o = o; | |
252 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
253 | } | |
b34976b6 | 254 | return TRUE; |
252b5132 RH |
255 | } |
256 | ||
0ffa91dd NC |
257 | |
258 | bfd_boolean | |
ae95ffa6 | 259 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 260 | { |
ae95ffa6 | 261 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 262 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 263 | bed->target_id); |
0ffa91dd NC |
264 | } |
265 | ||
b34976b6 | 266 | bfd_boolean |
217aa764 | 267 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 268 | { |
c044fabd | 269 | /* I think this can be done just like an object file. */ |
228e534f AM |
270 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
271 | return FALSE; | |
272 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); | |
273 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
274 | } |
275 | ||
72a80a16 | 276 | static char * |
217aa764 | 277 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
278 | { |
279 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 280 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
281 | file_ptr offset; |
282 | bfd_size_type shstrtabsize; | |
252b5132 RH |
283 | |
284 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
285 | if (i_shdrp == 0 |
286 | || shindex >= elf_numsections (abfd) | |
287 | || i_shdrp[shindex] == 0) | |
f075ee0c | 288 | return NULL; |
252b5132 | 289 | |
f075ee0c | 290 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
291 | if (shstrtab == NULL) |
292 | { | |
c044fabd | 293 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
294 | offset = i_shdrp[shindex]->sh_offset; |
295 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
296 | |
297 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
298 | in case the string table is not terminated. */ | |
3471d59d | 299 | if (shstrtabsize + 1 <= 1 |
06614111 NC |
300 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
301 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) | |
c6c60d09 JJ |
302 | shstrtab = NULL; |
303 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
304 | { | |
305 | if (bfd_get_error () != bfd_error_system_call) | |
306 | bfd_set_error (bfd_error_file_truncated); | |
06614111 | 307 | bfd_release (abfd, shstrtab); |
c6c60d09 | 308 | shstrtab = NULL; |
3471d59d CC |
309 | /* Once we've failed to read it, make sure we don't keep |
310 | trying. Otherwise, we'll keep allocating space for | |
311 | the string table over and over. */ | |
312 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
313 | } |
314 | else | |
315 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 316 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 317 | } |
f075ee0c | 318 | return (char *) shstrtab; |
252b5132 RH |
319 | } |
320 | ||
321 | char * | |
217aa764 AM |
322 | bfd_elf_string_from_elf_section (bfd *abfd, |
323 | unsigned int shindex, | |
324 | unsigned int strindex) | |
252b5132 RH |
325 | { |
326 | Elf_Internal_Shdr *hdr; | |
327 | ||
328 | if (strindex == 0) | |
329 | return ""; | |
330 | ||
74f2e02b AM |
331 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
332 | return NULL; | |
333 | ||
252b5132 RH |
334 | hdr = elf_elfsections (abfd)[shindex]; |
335 | ||
06614111 NC |
336 | if (hdr->contents == NULL) |
337 | { | |
338 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
339 | { | |
340 | /* PR 17512: file: f057ec89. */ | |
341 | _bfd_error_handler (_("%B: attempt to load strings from a non-string section (number %d)"), | |
342 | abfd, shindex); | |
343 | return NULL; | |
344 | } | |
b1fa9dd6 | 345 | |
06614111 NC |
346 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
347 | return NULL; | |
348 | } | |
252b5132 RH |
349 | |
350 | if (strindex >= hdr->sh_size) | |
351 | { | |
1b3a8575 | 352 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
252b5132 | 353 | (*_bfd_error_handler) |
d003868e AM |
354 | (_("%B: invalid string offset %u >= %lu for section `%s'"), |
355 | abfd, strindex, (unsigned long) hdr->sh_size, | |
1b3a8575 | 356 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 357 | ? ".shstrtab" |
1b3a8575 | 358 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 359 | return NULL; |
252b5132 RH |
360 | } |
361 | ||
362 | return ((char *) hdr->contents) + strindex; | |
363 | } | |
364 | ||
6cdc0ccc AM |
365 | /* Read and convert symbols to internal format. |
366 | SYMCOUNT specifies the number of symbols to read, starting from | |
367 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
368 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
369 | symbols, and symbol section index extensions, respectively. |
370 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
371 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
372 | |
373 | Elf_Internal_Sym * | |
217aa764 AM |
374 | bfd_elf_get_elf_syms (bfd *ibfd, |
375 | Elf_Internal_Shdr *symtab_hdr, | |
376 | size_t symcount, | |
377 | size_t symoffset, | |
378 | Elf_Internal_Sym *intsym_buf, | |
379 | void *extsym_buf, | |
380 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
381 | { |
382 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 383 | void *alloc_ext; |
df622259 | 384 | const bfd_byte *esym; |
6cdc0ccc AM |
385 | Elf_External_Sym_Shndx *alloc_extshndx; |
386 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 387 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
388 | Elf_Internal_Sym *isym; |
389 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 390 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
391 | size_t extsym_size; |
392 | bfd_size_type amt; | |
393 | file_ptr pos; | |
394 | ||
e44a2c9c AM |
395 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
396 | abort (); | |
397 | ||
6cdc0ccc AM |
398 | if (symcount == 0) |
399 | return intsym_buf; | |
400 | ||
401 | /* Normal syms might have section extension entries. */ | |
402 | shndx_hdr = NULL; | |
403 | if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr) | |
404 | shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr; | |
405 | ||
406 | /* Read the symbols. */ | |
407 | alloc_ext = NULL; | |
408 | alloc_extshndx = NULL; | |
4dd07732 | 409 | alloc_intsym = NULL; |
6cdc0ccc AM |
410 | bed = get_elf_backend_data (ibfd); |
411 | extsym_size = bed->s->sizeof_sym; | |
412 | amt = symcount * extsym_size; | |
413 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |
414 | if (extsym_buf == NULL) | |
415 | { | |
d0fb9a8d | 416 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
417 | extsym_buf = alloc_ext; |
418 | } | |
419 | if (extsym_buf == NULL | |
420 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
421 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
422 | { | |
423 | intsym_buf = NULL; | |
424 | goto out; | |
425 | } | |
426 | ||
427 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
428 | extshndx_buf = NULL; | |
429 | else | |
430 | { | |
431 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |
432 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |
433 | if (extshndx_buf == NULL) | |
434 | { | |
a50b1753 NC |
435 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
436 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); | |
6cdc0ccc AM |
437 | extshndx_buf = alloc_extshndx; |
438 | } | |
439 | if (extshndx_buf == NULL | |
440 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
441 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
442 | { | |
443 | intsym_buf = NULL; | |
444 | goto out; | |
445 | } | |
446 | } | |
447 | ||
448 | if (intsym_buf == NULL) | |
449 | { | |
a50b1753 NC |
450 | alloc_intsym = (Elf_Internal_Sym *) |
451 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); | |
4dd07732 | 452 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
453 | if (intsym_buf == NULL) |
454 | goto out; | |
455 | } | |
456 | ||
457 | /* Convert the symbols to internal form. */ | |
458 | isymend = intsym_buf + symcount; | |
a50b1753 NC |
459 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
460 | shndx = extshndx_buf; | |
6cdc0ccc AM |
461 | isym < isymend; |
462 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
463 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
464 | { | |
465 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
466 | (*_bfd_error_handler) (_("%B symbol number %lu references " | |
467 | "nonexistent SHT_SYMTAB_SHNDX section"), | |
468 | ibfd, (unsigned long) symoffset); | |
4dd07732 AM |
469 | if (alloc_intsym != NULL) |
470 | free (alloc_intsym); | |
8384fb8f AM |
471 | intsym_buf = NULL; |
472 | goto out; | |
473 | } | |
6cdc0ccc AM |
474 | |
475 | out: | |
476 | if (alloc_ext != NULL) | |
477 | free (alloc_ext); | |
478 | if (alloc_extshndx != NULL) | |
479 | free (alloc_extshndx); | |
480 | ||
481 | return intsym_buf; | |
482 | } | |
483 | ||
5cab59f6 AM |
484 | /* Look up a symbol name. */ |
485 | const char * | |
be8dd2ca AM |
486 | bfd_elf_sym_name (bfd *abfd, |
487 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
488 | Elf_Internal_Sym *isym, |
489 | asection *sym_sec) | |
5cab59f6 | 490 | { |
26c61ae5 | 491 | const char *name; |
5cab59f6 | 492 | unsigned int iname = isym->st_name; |
be8dd2ca | 493 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 494 | |
138f35cc JJ |
495 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
496 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 497 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
498 | { |
499 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
500 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
501 | } | |
502 | ||
26c61ae5 L |
503 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
504 | if (name == NULL) | |
505 | name = "(null)"; | |
506 | else if (sym_sec && *name == '\0') | |
507 | name = bfd_section_name (abfd, sym_sec); | |
508 | ||
509 | return name; | |
5cab59f6 AM |
510 | } |
511 | ||
dbb410c3 AM |
512 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
513 | sections. The first element is the flags, the rest are section | |
514 | pointers. */ | |
515 | ||
516 | typedef union elf_internal_group { | |
517 | Elf_Internal_Shdr *shdr; | |
518 | unsigned int flags; | |
519 | } Elf_Internal_Group; | |
520 | ||
b885599b AM |
521 | /* Return the name of the group signature symbol. Why isn't the |
522 | signature just a string? */ | |
523 | ||
524 | static const char * | |
217aa764 | 525 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 526 | { |
9dce4196 | 527 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
528 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
529 | Elf_External_Sym_Shndx eshndx; | |
530 | Elf_Internal_Sym isym; | |
b885599b | 531 | |
13792e9d L |
532 | /* First we need to ensure the symbol table is available. Make sure |
533 | that it is a symbol table section. */ | |
4fbb74a6 AM |
534 | if (ghdr->sh_link >= elf_numsections (abfd)) |
535 | return NULL; | |
13792e9d L |
536 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
537 | if (hdr->sh_type != SHT_SYMTAB | |
538 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
539 | return NULL; |
540 | ||
9dce4196 AM |
541 | /* Go read the symbol. */ |
542 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
543 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
544 | &isym, esym, &eshndx) == NULL) | |
b885599b | 545 | return NULL; |
9dce4196 | 546 | |
26c61ae5 | 547 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
548 | } |
549 | ||
dbb410c3 AM |
550 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
551 | ||
b34976b6 | 552 | static bfd_boolean |
217aa764 | 553 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
554 | { |
555 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
556 | ||
557 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
558 | is set to -1 if there are no SHT_GROUP sections. */ | |
559 | if (num_group == 0) | |
560 | { | |
561 | unsigned int i, shnum; | |
562 | ||
563 | /* First count the number of groups. If we have a SHT_GROUP | |
564 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 565 | shnum = elf_numsections (abfd); |
dbb410c3 | 566 | num_group = 0; |
08a40648 | 567 | |
44534af3 | 568 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 569 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 570 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
571 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
572 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 573 | |
dbb410c3 AM |
574 | for (i = 0; i < shnum; i++) |
575 | { | |
576 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 577 | |
44534af3 | 578 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
579 | num_group += 1; |
580 | } | |
581 | ||
582 | if (num_group == 0) | |
20dbb49d L |
583 | { |
584 | num_group = (unsigned) -1; | |
585 | elf_tdata (abfd)->num_group = num_group; | |
586 | } | |
587 | else | |
dbb410c3 AM |
588 | { |
589 | /* We keep a list of elf section headers for group sections, | |
590 | so we can find them quickly. */ | |
20dbb49d | 591 | bfd_size_type amt; |
d0fb9a8d | 592 | |
20dbb49d | 593 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 NC |
594 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
595 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 596 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 597 | return FALSE; |
dbb410c3 AM |
598 | |
599 | num_group = 0; | |
600 | for (i = 0; i < shnum; i++) | |
601 | { | |
602 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 603 | |
44534af3 | 604 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 605 | { |
973ffd63 | 606 | unsigned char *src; |
dbb410c3 AM |
607 | Elf_Internal_Group *dest; |
608 | ||
609 | /* Add to list of sections. */ | |
610 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
611 | num_group += 1; | |
612 | ||
613 | /* Read the raw contents. */ | |
614 | BFD_ASSERT (sizeof (*dest) >= 4); | |
615 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 NC |
616 | shdr->contents = (unsigned char *) |
617 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); | |
1783205a NC |
618 | /* PR binutils/4110: Handle corrupt group headers. */ |
619 | if (shdr->contents == NULL) | |
620 | { | |
621 | _bfd_error_handler | |
493a3386 | 622 | (_("%B: corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); |
1783205a | 623 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
624 | -- num_group; |
625 | continue; | |
1783205a NC |
626 | } |
627 | ||
628 | memset (shdr->contents, 0, amt); | |
629 | ||
630 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
631 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
632 | != shdr->sh_size)) | |
493a3386 NC |
633 | { |
634 | _bfd_error_handler | |
635 | (_("%B: invalid size field in group section header: 0x%lx"), abfd, shdr->sh_size); | |
636 | bfd_set_error (bfd_error_bad_value); | |
637 | -- num_group; | |
638 | /* PR 17510: If the group contents are even partially | |
639 | corrupt, do not allow any of the contents to be used. */ | |
640 | memset (shdr->contents, 0, amt); | |
641 | continue; | |
642 | } | |
708d7d0d | 643 | |
dbb410c3 AM |
644 | /* Translate raw contents, a flag word followed by an |
645 | array of elf section indices all in target byte order, | |
646 | to the flag word followed by an array of elf section | |
647 | pointers. */ | |
648 | src = shdr->contents + shdr->sh_size; | |
649 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 650 | |
dbb410c3 AM |
651 | while (1) |
652 | { | |
653 | unsigned int idx; | |
654 | ||
655 | src -= 4; | |
656 | --dest; | |
657 | idx = H_GET_32 (abfd, src); | |
658 | if (src == shdr->contents) | |
659 | { | |
660 | dest->flags = idx; | |
b885599b AM |
661 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
662 | shdr->bfd_section->flags | |
663 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
664 | break; |
665 | } | |
666 | if (idx >= shnum) | |
667 | { | |
668 | ((*_bfd_error_handler) | |
d003868e | 669 | (_("%B: invalid SHT_GROUP entry"), abfd)); |
dbb410c3 AM |
670 | idx = 0; |
671 | } | |
672 | dest->shdr = elf_elfsections (abfd)[idx]; | |
673 | } | |
674 | } | |
675 | } | |
493a3386 NC |
676 | |
677 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
678 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
679 | { | |
680 | elf_tdata (abfd)->num_group = num_group; | |
681 | ||
682 | /* If all groups are invalid then fail. */ | |
683 | if (num_group == 0) | |
684 | { | |
685 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
686 | elf_tdata (abfd)->num_group = num_group = -1; | |
687 | (*_bfd_error_handler) (_("%B: no valid group sections found"), abfd); | |
688 | bfd_set_error (bfd_error_bad_value); | |
689 | } | |
690 | } | |
dbb410c3 AM |
691 | } |
692 | } | |
693 | ||
694 | if (num_group != (unsigned) -1) | |
695 | { | |
696 | unsigned int i; | |
697 | ||
698 | for (i = 0; i < num_group; i++) | |
699 | { | |
700 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
701 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
702 | unsigned int n_elt = shdr->sh_size / 4; | |
703 | ||
704 | /* Look through this group's sections to see if current | |
705 | section is a member. */ | |
706 | while (--n_elt != 0) | |
707 | if ((++idx)->shdr == hdr) | |
708 | { | |
e0e8c97f | 709 | asection *s = NULL; |
dbb410c3 AM |
710 | |
711 | /* We are a member of this group. Go looking through | |
712 | other members to see if any others are linked via | |
713 | next_in_group. */ | |
714 | idx = (Elf_Internal_Group *) shdr->contents; | |
715 | n_elt = shdr->sh_size / 4; | |
716 | while (--n_elt != 0) | |
717 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 718 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
719 | break; |
720 | if (n_elt != 0) | |
721 | { | |
dbb410c3 AM |
722 | /* Snarf the group name from other member, and |
723 | insert current section in circular list. */ | |
945906ff AM |
724 | elf_group_name (newsect) = elf_group_name (s); |
725 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
726 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
727 | } |
728 | else | |
729 | { | |
dbb410c3 AM |
730 | const char *gname; |
731 | ||
b885599b AM |
732 | gname = group_signature (abfd, shdr); |
733 | if (gname == NULL) | |
b34976b6 | 734 | return FALSE; |
945906ff | 735 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
736 | |
737 | /* Start a circular list with one element. */ | |
945906ff | 738 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 739 | } |
b885599b | 740 | |
9dce4196 AM |
741 | /* If the group section has been created, point to the |
742 | new member. */ | |
dbb410c3 | 743 | if (shdr->bfd_section != NULL) |
945906ff | 744 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 745 | |
dbb410c3 AM |
746 | i = num_group - 1; |
747 | break; | |
748 | } | |
749 | } | |
750 | } | |
751 | ||
945906ff | 752 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 753 | { |
d003868e AM |
754 | (*_bfd_error_handler) (_("%B: no group info for section %A"), |
755 | abfd, newsect); | |
493a3386 | 756 | return FALSE; |
dbb410c3 | 757 | } |
b34976b6 | 758 | return TRUE; |
dbb410c3 AM |
759 | } |
760 | ||
3d7f7666 | 761 | bfd_boolean |
dd863624 | 762 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
763 | { |
764 | unsigned int i; | |
765 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
766 | bfd_boolean result = TRUE; | |
dd863624 L |
767 | asection *s; |
768 | ||
769 | /* Process SHF_LINK_ORDER. */ | |
770 | for (s = abfd->sections; s != NULL; s = s->next) | |
771 | { | |
772 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
773 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
774 | { | |
775 | unsigned int elfsec = this_hdr->sh_link; | |
776 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
777 | not set the sh_link or sh_info fields. Hence we could | |
778 | get the situation where elfsec is 0. */ | |
779 | if (elfsec == 0) | |
780 | { | |
4fbb74a6 | 781 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
782 | if (bed->link_order_error_handler) |
783 | bed->link_order_error_handler | |
784 | (_("%B: warning: sh_link not set for section `%A'"), | |
785 | abfd, s); | |
786 | } | |
787 | else | |
788 | { | |
91d6fa6a | 789 | asection *linksec = NULL; |
25bbc984 | 790 | |
4fbb74a6 AM |
791 | if (elfsec < elf_numsections (abfd)) |
792 | { | |
793 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 794 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 795 | } |
25bbc984 L |
796 | |
797 | /* PR 1991, 2008: | |
798 | Some strip/objcopy may leave an incorrect value in | |
799 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 800 | if (linksec == NULL) |
25bbc984 L |
801 | { |
802 | (*_bfd_error_handler) | |
803 | (_("%B: sh_link [%d] in section `%A' is incorrect"), | |
804 | s->owner, s, elfsec); | |
805 | result = FALSE; | |
806 | } | |
807 | ||
91d6fa6a | 808 | elf_linked_to_section (s) = linksec; |
dd863624 L |
809 | } |
810 | } | |
811 | } | |
3d7f7666 | 812 | |
dd863624 | 813 | /* Process section groups. */ |
3d7f7666 L |
814 | if (num_group == (unsigned) -1) |
815 | return result; | |
816 | ||
817 | for (i = 0; i < num_group; i++) | |
818 | { | |
819 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
820 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
821 | unsigned int n_elt = shdr->sh_size / 4; | |
822 | ||
823 | while (--n_elt != 0) | |
824 | if ((++idx)->shdr->bfd_section) | |
825 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
826 | else if (idx->shdr->sh_type == SHT_RELA | |
827 | || idx->shdr->sh_type == SHT_REL) | |
828 | /* We won't include relocation sections in section groups in | |
829 | output object files. We adjust the group section size here | |
830 | so that relocatable link will work correctly when | |
831 | relocation sections are in section group in input object | |
832 | files. */ | |
833 | shdr->bfd_section->size -= 4; | |
834 | else | |
835 | { | |
836 | /* There are some unknown sections in the group. */ | |
837 | (*_bfd_error_handler) | |
d003868e AM |
838 | (_("%B: unknown [%d] section `%s' in group [%s]"), |
839 | abfd, | |
3d7f7666 | 840 | (unsigned int) idx->shdr->sh_type, |
1b3a8575 AM |
841 | bfd_elf_string_from_elf_section (abfd, |
842 | (elf_elfheader (abfd) | |
843 | ->e_shstrndx), | |
844 | idx->shdr->sh_name), | |
3d7f7666 L |
845 | shdr->bfd_section->name); |
846 | result = FALSE; | |
847 | } | |
848 | } | |
849 | return result; | |
850 | } | |
851 | ||
72adc230 AM |
852 | bfd_boolean |
853 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
854 | { | |
855 | return elf_next_in_group (sec) != NULL; | |
856 | } | |
857 | ||
f6fe1ccd L |
858 | static char * |
859 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
860 | { | |
861 | unsigned int len = strlen (name); | |
862 | char *new_name = bfd_alloc (abfd, len + 2); | |
863 | if (new_name == NULL) | |
864 | return NULL; | |
865 | new_name[0] = '.'; | |
866 | new_name[1] = 'z'; | |
867 | memcpy (new_name + 2, name + 1, len); | |
868 | return new_name; | |
869 | } | |
870 | ||
871 | static char * | |
872 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
873 | { | |
874 | unsigned int len = strlen (name); | |
875 | char *new_name = bfd_alloc (abfd, len); | |
876 | if (new_name == NULL) | |
877 | return NULL; | |
878 | new_name[0] = '.'; | |
879 | memcpy (new_name + 1, name + 2, len - 1); | |
880 | return new_name; | |
881 | } | |
882 | ||
252b5132 RH |
883 | /* Make a BFD section from an ELF section. We store a pointer to the |
884 | BFD section in the bfd_section field of the header. */ | |
885 | ||
b34976b6 | 886 | bfd_boolean |
217aa764 AM |
887 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
888 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
889 | const char *name, |
890 | int shindex) | |
252b5132 RH |
891 | { |
892 | asection *newsect; | |
893 | flagword flags; | |
9c5bfbb7 | 894 | const struct elf_backend_data *bed; |
252b5132 RH |
895 | |
896 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 897 | return TRUE; |
252b5132 RH |
898 | |
899 | newsect = bfd_make_section_anyway (abfd, name); | |
900 | if (newsect == NULL) | |
b34976b6 | 901 | return FALSE; |
252b5132 | 902 | |
1829f4b2 AM |
903 | hdr->bfd_section = newsect; |
904 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 905 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 906 | |
2f89ff8d L |
907 | /* Always use the real type/flags. */ |
908 | elf_section_type (newsect) = hdr->sh_type; | |
909 | elf_section_flags (newsect) = hdr->sh_flags; | |
910 | ||
252b5132 RH |
911 | newsect->filepos = hdr->sh_offset; |
912 | ||
913 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
914 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
915 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 916 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 917 | return FALSE; |
252b5132 RH |
918 | |
919 | flags = SEC_NO_FLAGS; | |
920 | if (hdr->sh_type != SHT_NOBITS) | |
921 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 922 | if (hdr->sh_type == SHT_GROUP) |
b3096250 | 923 | flags |= SEC_GROUP | SEC_EXCLUDE; |
252b5132 RH |
924 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
925 | { | |
926 | flags |= SEC_ALLOC; | |
927 | if (hdr->sh_type != SHT_NOBITS) | |
928 | flags |= SEC_LOAD; | |
929 | } | |
930 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
931 | flags |= SEC_READONLY; | |
932 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
933 | flags |= SEC_CODE; | |
934 | else if ((flags & SEC_LOAD) != 0) | |
935 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
936 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
937 | { | |
938 | flags |= SEC_MERGE; | |
939 | newsect->entsize = hdr->sh_entsize; | |
940 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
941 | flags |= SEC_STRINGS; | |
942 | } | |
dbb410c3 AM |
943 | if (hdr->sh_flags & SHF_GROUP) |
944 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 945 | return FALSE; |
13ae64f3 JJ |
946 | if ((hdr->sh_flags & SHF_TLS) != 0) |
947 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
948 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
949 | flags |= SEC_EXCLUDE; | |
252b5132 | 950 | |
3d2b39cf | 951 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 952 | { |
3d2b39cf L |
953 | /* The debugging sections appear to be recognized only by name, |
954 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
955 | if (name [0] == '.') |
956 | { | |
f073ced3 AM |
957 | const char *p; |
958 | int n; | |
959 | if (name[1] == 'd') | |
960 | p = ".debug", n = 6; | |
961 | else if (name[1] == 'g' && name[2] == 'n') | |
962 | p = ".gnu.linkonce.wi.", n = 17; | |
963 | else if (name[1] == 'g' && name[2] == 'd') | |
964 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
965 | else if (name[1] == 'l') | |
966 | p = ".line", n = 5; | |
967 | else if (name[1] == 's') | |
968 | p = ".stab", n = 5; | |
969 | else if (name[1] == 'z') | |
970 | p = ".zdebug", n = 7; | |
971 | else | |
972 | p = NULL, n = 0; | |
973 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
974 | flags |= SEC_DEBUGGING; |
975 | } | |
976 | } | |
252b5132 RH |
977 | |
978 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
979 | only link a single copy of the section. This is used to support | |
980 | g++. g++ will emit each template expansion in its own section. | |
981 | The symbols will be defined as weak, so that multiple definitions | |
982 | are permitted. The GNU linker extension is to actually discard | |
983 | all but one of the sections. */ | |
0112cd26 | 984 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 985 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
986 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
987 | ||
fa152c49 JW |
988 | bed = get_elf_backend_data (abfd); |
989 | if (bed->elf_backend_section_flags) | |
990 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 991 | return FALSE; |
fa152c49 | 992 | |
252b5132 | 993 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 994 | return FALSE; |
252b5132 | 995 | |
718175fa JK |
996 | /* We do not parse the PT_NOTE segments as we are interested even in the |
997 | separate debug info files which may have the segments offsets corrupted. | |
998 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
999 | if (hdr->sh_type == SHT_NOTE) | |
1000 | { | |
baea7ef1 | 1001 | bfd_byte *contents; |
718175fa | 1002 | |
baea7ef1 | 1003 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1004 | return FALSE; |
1005 | ||
baea7ef1 | 1006 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, -1); |
718175fa JK |
1007 | free (contents); |
1008 | } | |
1009 | ||
252b5132 RH |
1010 | if ((flags & SEC_ALLOC) != 0) |
1011 | { | |
1012 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1013 | unsigned int i, nload; |
1014 | ||
1015 | /* Some ELF linkers produce binaries with all the program header | |
1016 | p_paddr fields zero. If we have such a binary with more than | |
1017 | one PT_LOAD header, then leave the section lma equal to vma | |
1018 | so that we don't create sections with overlapping lma. */ | |
1019 | phdr = elf_tdata (abfd)->phdr; | |
1020 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1021 | if (phdr->p_paddr != 0) | |
1022 | break; | |
1023 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1024 | ++nload; | |
1025 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1026 | return TRUE; | |
252b5132 | 1027 | |
252b5132 RH |
1028 | phdr = elf_tdata (abfd)->phdr; |
1029 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1030 | { | |
86b2281f AM |
1031 | if (((phdr->p_type == PT_LOAD |
1032 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1033 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1034 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1035 | { |
88967714 AM |
1036 | if ((flags & SEC_LOAD) == 0) |
1037 | newsect->lma = (phdr->p_paddr | |
1038 | + hdr->sh_addr - phdr->p_vaddr); | |
1039 | else | |
1040 | /* We used to use the same adjustment for SEC_LOAD | |
1041 | sections, but that doesn't work if the segment | |
1042 | is packed with code from multiple VMAs. | |
1043 | Instead we calculate the section LMA based on | |
1044 | the segment LMA. It is assumed that the | |
1045 | segment will contain sections with contiguous | |
1046 | LMAs, even if the VMAs are not. */ | |
1047 | newsect->lma = (phdr->p_paddr | |
1048 | + hdr->sh_offset - phdr->p_offset); | |
1049 | ||
1050 | /* With contiguous segments, we can't tell from file | |
1051 | offsets whether a section with zero size should | |
1052 | be placed at the end of one segment or the | |
1053 | beginning of the next. Decide based on vaddr. */ | |
1054 | if (hdr->sh_addr >= phdr->p_vaddr | |
1055 | && (hdr->sh_addr + hdr->sh_size | |
1056 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1057 | break; | |
252b5132 RH |
1058 | } |
1059 | } | |
1060 | } | |
1061 | ||
4a114e3e L |
1062 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1063 | .zdebug_*, after the section flags is set. */ | |
1064 | if ((flags & SEC_DEBUGGING) | |
1065 | && ((name[1] == 'd' && name[6] == '_') | |
1066 | || (name[1] == 'z' && name[7] == '_'))) | |
1067 | { | |
1068 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1069 | int compression_header_size; |
dab394de | 1070 | bfd_size_type uncompressed_size; |
151411f8 L |
1071 | bfd_boolean compressed |
1072 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de L |
1073 | &compression_header_size, |
1074 | &uncompressed_size); | |
4a114e3e | 1075 | |
151411f8 | 1076 | if (compressed) |
4a114e3e L |
1077 | { |
1078 | /* Compressed section. Check if we should decompress. */ | |
1079 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1080 | action = decompress; | |
1081 | } | |
151411f8 L |
1082 | |
1083 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1084 | section. Check if we should compress. */ | |
1085 | if (action == nothing) | |
4a114e3e | 1086 | { |
151411f8 L |
1087 | if (newsect->size != 0 |
1088 | && (abfd->flags & BFD_COMPRESS) | |
1089 | && compression_header_size >= 0 | |
dab394de | 1090 | && uncompressed_size > 0 |
151411f8 L |
1091 | && (!compressed |
1092 | || ((compression_header_size > 0) | |
1093 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1094 | action = compress; |
151411f8 L |
1095 | else |
1096 | return TRUE; | |
4a114e3e L |
1097 | } |
1098 | ||
151411f8 | 1099 | if (action == compress) |
4a114e3e | 1100 | { |
4a114e3e L |
1101 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1102 | { | |
1103 | (*_bfd_error_handler) | |
bc823199 | 1104 | (_("%B: unable to initialize compress status for section %s"), |
4a114e3e L |
1105 | abfd, name); |
1106 | return FALSE; | |
1107 | } | |
151411f8 L |
1108 | } |
1109 | else | |
1110 | { | |
4a114e3e L |
1111 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1112 | { | |
1113 | (*_bfd_error_handler) | |
bc823199 | 1114 | (_("%B: unable to initialize decompress status for section %s"), |
4a114e3e L |
1115 | abfd, name); |
1116 | return FALSE; | |
1117 | } | |
151411f8 L |
1118 | } |
1119 | ||
f6fe1ccd | 1120 | if (abfd->is_linker_input) |
151411f8 | 1121 | { |
f6fe1ccd L |
1122 | if (name[1] == 'z' |
1123 | && (action == decompress | |
1124 | || (action == compress | |
1125 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1126 | { |
f6fe1ccd L |
1127 | /* Convert section name from .zdebug_* to .debug_* so |
1128 | that linker will consider this section as a debug | |
1129 | section. */ | |
1130 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1131 | if (new_name == NULL) |
1132 | return FALSE; | |
f6fe1ccd | 1133 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1134 | } |
4a114e3e | 1135 | } |
f6fe1ccd L |
1136 | else |
1137 | /* For objdump, don't rename the section. For objcopy, delay | |
1138 | section rename to elf_fake_sections. */ | |
1139 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1140 | } |
1141 | ||
b34976b6 | 1142 | return TRUE; |
252b5132 RH |
1143 | } |
1144 | ||
252b5132 RH |
1145 | const char *const bfd_elf_section_type_names[] = { |
1146 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
1147 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1148 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1149 | }; | |
1150 | ||
1049f94e | 1151 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1152 | output, and the reloc is against an external symbol, and nothing |
1153 | has given us any additional addend, the resulting reloc will also | |
1154 | be against the same symbol. In such a case, we don't want to | |
1155 | change anything about the way the reloc is handled, since it will | |
1156 | all be done at final link time. Rather than put special case code | |
1157 | into bfd_perform_relocation, all the reloc types use this howto | |
1158 | function. It just short circuits the reloc if producing | |
1049f94e | 1159 | relocatable output against an external symbol. */ |
252b5132 | 1160 | |
252b5132 | 1161 | bfd_reloc_status_type |
217aa764 AM |
1162 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1163 | arelent *reloc_entry, | |
1164 | asymbol *symbol, | |
1165 | void *data ATTRIBUTE_UNUSED, | |
1166 | asection *input_section, | |
1167 | bfd *output_bfd, | |
1168 | char **error_message ATTRIBUTE_UNUSED) | |
1169 | { | |
1170 | if (output_bfd != NULL | |
252b5132 RH |
1171 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1172 | && (! reloc_entry->howto->partial_inplace | |
1173 | || reloc_entry->addend == 0)) | |
1174 | { | |
1175 | reloc_entry->address += input_section->output_offset; | |
1176 | return bfd_reloc_ok; | |
1177 | } | |
1178 | ||
1179 | return bfd_reloc_continue; | |
1180 | } | |
1181 | \f | |
0ac4564e L |
1182 | /* Copy the program header and other data from one object module to |
1183 | another. */ | |
252b5132 | 1184 | |
b34976b6 | 1185 | bfd_boolean |
217aa764 | 1186 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 L |
1187 | { |
1188 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1189 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1190 | return TRUE; |
2d502050 | 1191 | |
57b828ef L |
1192 | if (!elf_flags_init (obfd)) |
1193 | { | |
1194 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1195 | elf_flags_init (obfd) = TRUE; | |
1196 | } | |
2d502050 | 1197 | |
0ac4564e | 1198 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1199 | |
1200 | /* Also copy the EI_OSABI field. */ | |
1201 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1202 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 JM |
1203 | |
1204 | /* Copy object attributes. */ | |
1205 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 NC |
1206 | |
1207 | /* This is an feature for objcopy --only-keep-debug: When a section's type | |
1208 | is changed to NOBITS, we preserve the sh_link and sh_info fields so that | |
1209 | they can be matched up with the original. */ | |
1210 | Elf_Internal_Shdr ** iheaders = elf_elfsections (ibfd); | |
1211 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1212 | ||
1213 | if (iheaders != NULL && oheaders != NULL) | |
1214 | { | |
1215 | unsigned int i; | |
1216 | ||
1217 | for (i = 0; i < elf_numsections (obfd); i++) | |
1218 | { | |
1219 | unsigned int j; | |
1220 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1221 | ||
1222 | if (oheader == NULL | |
1223 | || oheader->sh_type != SHT_NOBITS | |
1224 | || oheader->sh_size == 0 | |
1225 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) | |
1226 | continue; | |
1227 | ||
1228 | /* Scan for the matching section in the input bfd. | |
1229 | FIXME: We could use something better than a linear scan here. | |
1230 | Unfortunately we cannot compare names as the output string table | |
1231 | is empty, so instead we check size, address and type. */ | |
1232 | for (j = 0; j < elf_numsections (ibfd); j++) | |
1233 | { | |
1234 | Elf_Internal_Shdr * iheader = iheaders[j]; | |
1235 | ||
d4ac1f87 L |
1236 | /* Since --only-keep-debug turns all non-debug sections |
1237 | into SHT_NOBITS sections, the output SHT_NOBITS type | |
1238 | matches any input type. */ | |
1239 | if ((oheader->sh_type == SHT_NOBITS | |
1240 | || oheader->sh_type == oheader->sh_type) | |
1241 | && iheader->sh_flags == oheader->sh_flags | |
1242 | && iheader->sh_addralign == oheader->sh_addralign | |
1243 | && iheader->sh_entsize == oheader->sh_entsize | |
63b9bbb7 NC |
1244 | && iheader->sh_size == oheader->sh_size |
1245 | && iheader->sh_addr == oheader->sh_addr | |
1246 | && (iheader->sh_info != oheader->sh_info | |
1247 | || iheader->sh_link != oheader->sh_link)) | |
1248 | { | |
1249 | /* Note: Strictly speaking these assignments are wrong. | |
1250 | The sh_link and sh_info fields should point to the | |
1251 | relevent sections in the output BFD, which may not be in | |
1252 | the same location as they were in the input BFD. But the | |
1253 | whole point of this action is to preserve the original | |
1254 | values of the sh_link and sh_info fields, so that they | |
1255 | can be matched up with the section headers in the | |
1256 | original file. So strictly speaking we may be creating | |
1257 | an invalid ELF file, but it is only for a file that just | |
1258 | contains debug info and only for sections without any | |
1259 | contents. */ | |
1260 | if (oheader->sh_link == 0) | |
1261 | oheader->sh_link = iheader->sh_link; | |
1262 | if (oheader->sh_info == 0) | |
1263 | oheader->sh_info = iheader->sh_info; | |
1264 | break; | |
1265 | } | |
1266 | } | |
1267 | } | |
1268 | } | |
1269 | ||
b34976b6 | 1270 | return TRUE; |
2d502050 L |
1271 | } |
1272 | ||
cedc298e L |
1273 | static const char * |
1274 | get_segment_type (unsigned int p_type) | |
1275 | { | |
1276 | const char *pt; | |
1277 | switch (p_type) | |
1278 | { | |
1279 | case PT_NULL: pt = "NULL"; break; | |
1280 | case PT_LOAD: pt = "LOAD"; break; | |
1281 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1282 | case PT_INTERP: pt = "INTERP"; break; | |
1283 | case PT_NOTE: pt = "NOTE"; break; | |
1284 | case PT_SHLIB: pt = "SHLIB"; break; | |
1285 | case PT_PHDR: pt = "PHDR"; break; | |
1286 | case PT_TLS: pt = "TLS"; break; | |
1287 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1288 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1289 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1290 | default: pt = NULL; break; | |
1291 | } | |
1292 | return pt; | |
1293 | } | |
1294 | ||
f0b79d91 L |
1295 | /* Print out the program headers. */ |
1296 | ||
b34976b6 | 1297 | bfd_boolean |
217aa764 | 1298 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1299 | { |
a50b1753 | 1300 | FILE *f = (FILE *) farg; |
252b5132 RH |
1301 | Elf_Internal_Phdr *p; |
1302 | asection *s; | |
1303 | bfd_byte *dynbuf = NULL; | |
1304 | ||
1305 | p = elf_tdata (abfd)->phdr; | |
1306 | if (p != NULL) | |
1307 | { | |
1308 | unsigned int i, c; | |
1309 | ||
1310 | fprintf (f, _("\nProgram Header:\n")); | |
1311 | c = elf_elfheader (abfd)->e_phnum; | |
1312 | for (i = 0; i < c; i++, p++) | |
1313 | { | |
cedc298e | 1314 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1315 | char buf[20]; |
1316 | ||
cedc298e | 1317 | if (pt == NULL) |
252b5132 | 1318 | { |
cedc298e L |
1319 | sprintf (buf, "0x%lx", p->p_type); |
1320 | pt = buf; | |
252b5132 | 1321 | } |
dc810e39 | 1322 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1323 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1324 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1325 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1326 | fprintf (f, " paddr 0x"); |
60b89a18 | 1327 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1328 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1329 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1330 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1331 | fprintf (f, " memsz 0x"); |
60b89a18 | 1332 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1333 | fprintf (f, " flags %c%c%c", |
1334 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1335 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1336 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1337 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1338 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1339 | fprintf (f, "\n"); |
1340 | } | |
1341 | } | |
1342 | ||
1343 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1344 | if (s != NULL) | |
1345 | { | |
cb33740c | 1346 | unsigned int elfsec; |
dc810e39 | 1347 | unsigned long shlink; |
252b5132 RH |
1348 | bfd_byte *extdyn, *extdynend; |
1349 | size_t extdynsize; | |
217aa764 | 1350 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1351 | |
1352 | fprintf (f, _("\nDynamic Section:\n")); | |
1353 | ||
eea6121a | 1354 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1355 | goto error_return; |
1356 | ||
1357 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1358 | if (elfsec == SHN_BAD) |
252b5132 | 1359 | goto error_return; |
dc810e39 | 1360 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1361 | |
1362 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1363 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1364 | ||
1365 | extdyn = dynbuf; | |
06614111 NC |
1366 | /* PR 17512: file: 6f427532. */ |
1367 | if (s->size < extdynsize) | |
1368 | goto error_return; | |
eea6121a | 1369 | extdynend = extdyn + s->size; |
1036838a NC |
1370 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
1371 | Fix range check. */ | |
1372 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) | |
252b5132 RH |
1373 | { |
1374 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1375 | const char *name = ""; |
252b5132 | 1376 | char ab[20]; |
b34976b6 | 1377 | bfd_boolean stringp; |
ad9563d6 | 1378 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1379 | |
217aa764 | 1380 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1381 | |
1382 | if (dyn.d_tag == DT_NULL) | |
1383 | break; | |
1384 | ||
b34976b6 | 1385 | stringp = FALSE; |
252b5132 RH |
1386 | switch (dyn.d_tag) |
1387 | { | |
1388 | default: | |
ad9563d6 CM |
1389 | if (bed->elf_backend_get_target_dtag) |
1390 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1391 | ||
1392 | if (!strcmp (name, "")) | |
1393 | { | |
1394 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
1395 | name = ab; | |
1396 | } | |
252b5132 RH |
1397 | break; |
1398 | ||
b34976b6 | 1399 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1400 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1401 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1402 | case DT_HASH: name = "HASH"; break; | |
1403 | case DT_STRTAB: name = "STRTAB"; break; | |
1404 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1405 | case DT_RELA: name = "RELA"; break; | |
1406 | case DT_RELASZ: name = "RELASZ"; break; | |
1407 | case DT_RELAENT: name = "RELAENT"; break; | |
1408 | case DT_STRSZ: name = "STRSZ"; break; | |
1409 | case DT_SYMENT: name = "SYMENT"; break; | |
1410 | case DT_INIT: name = "INIT"; break; | |
1411 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1412 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1413 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1414 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1415 | case DT_REL: name = "REL"; break; | |
1416 | case DT_RELSZ: name = "RELSZ"; break; | |
1417 | case DT_RELENT: name = "RELENT"; break; | |
1418 | case DT_PLTREL: name = "PLTREL"; break; | |
1419 | case DT_DEBUG: name = "DEBUG"; break; | |
1420 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1421 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1422 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1423 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1424 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1425 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1426 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1427 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1428 | case DT_FLAGS: name = "FLAGS"; break; |
1429 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1430 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1431 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1432 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1433 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1434 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1435 | case DT_FEATURE: name = "FEATURE"; break; | |
1436 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1437 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1438 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1439 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1440 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1441 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1442 | case DT_PLTPAD: name = "PLTPAD"; break; |
1443 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1444 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1445 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1446 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1447 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1448 | case DT_VERSYM: name = "VERSYM"; break; |
1449 | case DT_VERDEF: name = "VERDEF"; break; | |
1450 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1451 | case DT_VERNEED: name = "VERNEED"; break; | |
1452 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1453 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1454 | case DT_USED: name = "USED"; break; |
b34976b6 | 1455 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1456 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1457 | } |
1458 | ||
ad9563d6 | 1459 | fprintf (f, " %-20s ", name); |
252b5132 | 1460 | if (! stringp) |
a1f3c56e AN |
1461 | { |
1462 | fprintf (f, "0x"); | |
1463 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1464 | } | |
252b5132 RH |
1465 | else |
1466 | { | |
1467 | const char *string; | |
dc810e39 | 1468 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1469 | |
dc810e39 | 1470 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1471 | if (string == NULL) |
1472 | goto error_return; | |
1473 | fprintf (f, "%s", string); | |
1474 | } | |
1475 | fprintf (f, "\n"); | |
1476 | } | |
1477 | ||
1478 | free (dynbuf); | |
1479 | dynbuf = NULL; | |
1480 | } | |
1481 | ||
1482 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1483 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1484 | { | |
fc0e6df6 | 1485 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1486 | return FALSE; |
252b5132 RH |
1487 | } |
1488 | ||
1489 | if (elf_dynverdef (abfd) != 0) | |
1490 | { | |
1491 | Elf_Internal_Verdef *t; | |
1492 | ||
1493 | fprintf (f, _("\nVersion definitions:\n")); | |
1494 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1495 | { | |
1496 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1497 | t->vd_flags, t->vd_hash, |
1498 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1499 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1500 | { |
1501 | Elf_Internal_Verdaux *a; | |
1502 | ||
1503 | fprintf (f, "\t"); | |
1504 | for (a = t->vd_auxptr->vda_nextptr; | |
1505 | a != NULL; | |
1506 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1507 | fprintf (f, "%s ", |
1508 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1509 | fprintf (f, "\n"); |
1510 | } | |
1511 | } | |
1512 | } | |
1513 | ||
1514 | if (elf_dynverref (abfd) != 0) | |
1515 | { | |
1516 | Elf_Internal_Verneed *t; | |
1517 | ||
1518 | fprintf (f, _("\nVersion References:\n")); | |
1519 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1520 | { | |
1521 | Elf_Internal_Vernaux *a; | |
1522 | ||
d0fb9a8d JJ |
1523 | fprintf (f, _(" required from %s:\n"), |
1524 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1525 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1526 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1527 | a->vna_flags, a->vna_other, |
1528 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1529 | } |
1530 | } | |
1531 | ||
b34976b6 | 1532 | return TRUE; |
252b5132 RH |
1533 | |
1534 | error_return: | |
1535 | if (dynbuf != NULL) | |
1536 | free (dynbuf); | |
b34976b6 | 1537 | return FALSE; |
252b5132 RH |
1538 | } |
1539 | ||
bb4d2ac2 L |
1540 | /* Get version string. */ |
1541 | ||
1542 | const char * | |
60bb06bc L |
1543 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1544 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1545 | { |
1546 | const char *version_string = NULL; | |
1547 | if (elf_dynversym (abfd) != 0 | |
1548 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1549 | { | |
1550 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1551 | ||
1552 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1553 | vernum &= VERSYM_VERSION; | |
1554 | ||
1555 | if (vernum == 0) | |
1556 | version_string = ""; | |
1557 | else if (vernum == 1) | |
1558 | version_string = "Base"; | |
1559 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1560 | version_string = | |
1561 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1562 | else | |
1563 | { | |
1564 | Elf_Internal_Verneed *t; | |
1565 | ||
1566 | version_string = ""; | |
1567 | for (t = elf_tdata (abfd)->verref; | |
1568 | t != NULL; | |
1569 | t = t->vn_nextref) | |
1570 | { | |
1571 | Elf_Internal_Vernaux *a; | |
1572 | ||
1573 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1574 | { | |
1575 | if (a->vna_other == vernum) | |
1576 | { | |
1577 | version_string = a->vna_nodename; | |
1578 | break; | |
1579 | } | |
1580 | } | |
1581 | } | |
1582 | } | |
1583 | } | |
1584 | return version_string; | |
1585 | } | |
1586 | ||
252b5132 RH |
1587 | /* Display ELF-specific fields of a symbol. */ |
1588 | ||
1589 | void | |
217aa764 AM |
1590 | bfd_elf_print_symbol (bfd *abfd, |
1591 | void *filep, | |
1592 | asymbol *symbol, | |
1593 | bfd_print_symbol_type how) | |
252b5132 | 1594 | { |
a50b1753 | 1595 | FILE *file = (FILE *) filep; |
252b5132 RH |
1596 | switch (how) |
1597 | { | |
1598 | case bfd_print_symbol_name: | |
1599 | fprintf (file, "%s", symbol->name); | |
1600 | break; | |
1601 | case bfd_print_symbol_more: | |
1602 | fprintf (file, "elf "); | |
60b89a18 | 1603 | bfd_fprintf_vma (abfd, file, symbol->value); |
0af1713e | 1604 | fprintf (file, " %lx", (unsigned long) symbol->flags); |
252b5132 RH |
1605 | break; |
1606 | case bfd_print_symbol_all: | |
1607 | { | |
4e8a9624 AM |
1608 | const char *section_name; |
1609 | const char *name = NULL; | |
9c5bfbb7 | 1610 | const struct elf_backend_data *bed; |
7a13edea | 1611 | unsigned char st_other; |
dbb410c3 | 1612 | bfd_vma val; |
bb4d2ac2 L |
1613 | const char *version_string; |
1614 | bfd_boolean hidden; | |
c044fabd | 1615 | |
252b5132 | 1616 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1617 | |
1618 | bed = get_elf_backend_data (abfd); | |
1619 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1620 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1621 | |
1622 | if (name == NULL) | |
1623 | { | |
7ee38065 | 1624 | name = symbol->name; |
217aa764 | 1625 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1626 | } |
1627 | ||
252b5132 RH |
1628 | fprintf (file, " %s\t", section_name); |
1629 | /* Print the "other" value for a symbol. For common symbols, | |
1630 | we've already printed the size; now print the alignment. | |
1631 | For other symbols, we have no specified alignment, and | |
1632 | we've printed the address; now print the size. */ | |
dcf6c779 | 1633 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1634 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1635 | else | |
1636 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1637 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1638 | |
1639 | /* If we have version information, print it. */ | |
60bb06bc L |
1640 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1641 | symbol, | |
1642 | &hidden); | |
bb4d2ac2 | 1643 | if (version_string) |
252b5132 | 1644 | { |
bb4d2ac2 | 1645 | if (!hidden) |
252b5132 RH |
1646 | fprintf (file, " %-11s", version_string); |
1647 | else | |
1648 | { | |
1649 | int i; | |
1650 | ||
1651 | fprintf (file, " (%s)", version_string); | |
1652 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1653 | putc (' ', file); | |
1654 | } | |
1655 | } | |
1656 | ||
1657 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1658 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1659 | |
7a13edea NC |
1660 | switch (st_other) |
1661 | { | |
1662 | case 0: break; | |
1663 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1664 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1665 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1666 | default: | |
1667 | /* Some other non-defined flags are also present, so print | |
1668 | everything hex. */ | |
1669 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1670 | } | |
252b5132 | 1671 | |
587ff49e | 1672 | fprintf (file, " %s", name); |
252b5132 RH |
1673 | } |
1674 | break; | |
1675 | } | |
1676 | } | |
252b5132 RH |
1677 | \f |
1678 | /* ELF .o/exec file reading */ | |
1679 | ||
c044fabd | 1680 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1681 | |
b34976b6 | 1682 | bfd_boolean |
217aa764 | 1683 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1684 | { |
4fbb74a6 AM |
1685 | Elf_Internal_Shdr *hdr; |
1686 | Elf_Internal_Ehdr *ehdr; | |
1687 | const struct elf_backend_data *bed; | |
90937f86 | 1688 | const char *name; |
bf67003b NC |
1689 | bfd_boolean ret = TRUE; |
1690 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 1691 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 1692 | static unsigned int nesting = 0; |
252b5132 | 1693 | |
4fbb74a6 AM |
1694 | if (shindex >= elf_numsections (abfd)) |
1695 | return FALSE; | |
1696 | ||
bf67003b NC |
1697 | if (++ nesting > 3) |
1698 | { | |
1699 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
06614111 | 1700 | sections, with each the string indicies pointing to the next in the |
bf67003b NC |
1701 | loop. Detect this here, by refusing to load a section that we are |
1702 | already in the process of loading. We only trigger this test if | |
1703 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
1704 | can expect to recurse at least once. |
1705 | ||
1706 | FIXME: It would be better if this array was attached to the bfd, | |
1707 | rather than being held in a static pointer. */ | |
1708 | ||
1709 | if (sections_being_created_abfd != abfd) | |
1710 | sections_being_created = NULL; | |
bf67003b NC |
1711 | if (sections_being_created == NULL) |
1712 | { | |
1713 | /* FIXME: It would be more efficient to attach this array to the bfd somehow. */ | |
1714 | sections_being_created = (bfd_boolean *) | |
1715 | bfd_zalloc (abfd, elf_numsections (abfd) * sizeof (bfd_boolean)); | |
5a4b0ccc | 1716 | sections_being_created_abfd = abfd; |
bf67003b NC |
1717 | } |
1718 | if (sections_being_created [shindex]) | |
1719 | { | |
1720 | (*_bfd_error_handler) | |
1721 | (_("%B: warning: loop in section dependencies detected"), abfd); | |
1722 | return FALSE; | |
1723 | } | |
1724 | sections_being_created [shindex] = TRUE; | |
1725 | } | |
1726 | ||
4fbb74a6 AM |
1727 | hdr = elf_elfsections (abfd)[shindex]; |
1728 | ehdr = elf_elfheader (abfd); | |
1729 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 1730 | hdr->sh_name); |
933d961a | 1731 | if (name == NULL) |
bf67003b | 1732 | goto fail; |
252b5132 | 1733 | |
4fbb74a6 | 1734 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
1735 | switch (hdr->sh_type) |
1736 | { | |
1737 | case SHT_NULL: | |
1738 | /* Inactive section. Throw it away. */ | |
bf67003b | 1739 | goto success; |
252b5132 | 1740 | |
bf67003b NC |
1741 | case SHT_PROGBITS: /* Normal section with contents. */ |
1742 | case SHT_NOBITS: /* .bss section. */ | |
1743 | case SHT_HASH: /* .hash section. */ | |
1744 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1745 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1746 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1747 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 1748 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 1749 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
1750 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1751 | goto success; | |
252b5132 | 1752 | |
797fc050 | 1753 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 1754 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
1755 | goto fail; |
1756 | ||
cfcac11d NC |
1757 | if (hdr->sh_link > elf_numsections (abfd)) |
1758 | { | |
caa83f8b | 1759 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
1760 | field set to SHN_BEFORE or SHN_AFTER. */ |
1761 | switch (bfd_get_arch (abfd)) | |
1762 | { | |
caa83f8b | 1763 | case bfd_arch_i386: |
cfcac11d NC |
1764 | case bfd_arch_sparc: |
1765 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
1766 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
1767 | break; | |
1768 | /* Otherwise fall through. */ | |
1769 | default: | |
bf67003b | 1770 | goto fail; |
cfcac11d NC |
1771 | } |
1772 | } | |
1773 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 1774 | goto fail; |
cfcac11d | 1775 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
1776 | { |
1777 | Elf_Internal_Shdr *dynsymhdr; | |
1778 | ||
1779 | /* The shared libraries distributed with hpux11 have a bogus | |
1780 | sh_link field for the ".dynamic" section. Find the | |
1781 | string table for the ".dynsym" section instead. */ | |
1782 | if (elf_dynsymtab (abfd) != 0) | |
1783 | { | |
1784 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
1785 | hdr->sh_link = dynsymhdr->sh_link; | |
1786 | } | |
1787 | else | |
1788 | { | |
1789 | unsigned int i, num_sec; | |
1790 | ||
1791 | num_sec = elf_numsections (abfd); | |
1792 | for (i = 1; i < num_sec; i++) | |
1793 | { | |
1794 | dynsymhdr = elf_elfsections (abfd)[i]; | |
1795 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
1796 | { | |
1797 | hdr->sh_link = dynsymhdr->sh_link; | |
1798 | break; | |
1799 | } | |
1800 | } | |
1801 | } | |
1802 | } | |
bf67003b | 1803 | goto success; |
797fc050 | 1804 | |
bf67003b | 1805 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 1806 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 1807 | goto success; |
252b5132 | 1808 | |
a50b2160 | 1809 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
1810 | goto fail; |
1811 | ||
3337c1e5 | 1812 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
1813 | { |
1814 | if (hdr->sh_size != 0) | |
bf67003b | 1815 | goto fail; |
eee3b786 AM |
1816 | /* Some assemblers erroneously set sh_info to one with a |
1817 | zero sh_size. ld sees this as a global symbol count | |
1818 | of (unsigned) -1. Fix it here. */ | |
1819 | hdr->sh_info = 0; | |
bf67003b | 1820 | goto success; |
eee3b786 | 1821 | } |
bf67003b | 1822 | |
252b5132 RH |
1823 | BFD_ASSERT (elf_onesymtab (abfd) == 0); |
1824 | elf_onesymtab (abfd) = shindex; | |
1825 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1826 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1827 | abfd->flags |= HAS_SYMS; | |
1828 | ||
1829 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
1830 | SHF_ALLOC is set, and this is a shared object, then we also |
1831 | treat this section as a BFD section. We can not base the | |
1832 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1833 | set in a relocatable object file, which would confuse the | |
1834 | linker. */ | |
252b5132 RH |
1835 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
1836 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
1837 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1838 | shindex)) | |
bf67003b | 1839 | goto fail; |
252b5132 | 1840 | |
1b3a8575 AM |
1841 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
1842 | can't read symbols without that section loaded as well. It | |
1843 | is most likely specified by the next section header. */ | |
1844 | if (elf_elfsections (abfd)[elf_symtab_shndx (abfd)]->sh_link != shindex) | |
1845 | { | |
1846 | unsigned int i, num_sec; | |
1847 | ||
1848 | num_sec = elf_numsections (abfd); | |
1849 | for (i = shindex + 1; i < num_sec; i++) | |
1850 | { | |
1851 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1852 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1853 | && hdr2->sh_link == shindex) | |
1854 | break; | |
1855 | } | |
1856 | if (i == num_sec) | |
1857 | for (i = 1; i < shindex; i++) | |
1858 | { | |
1859 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1860 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1861 | && hdr2->sh_link == shindex) | |
1862 | break; | |
1863 | } | |
1864 | if (i != shindex) | |
bf67003b | 1865 | ret = bfd_section_from_shdr (abfd, i); |
1b3a8575 | 1866 | } |
bf67003b | 1867 | goto success; |
252b5132 | 1868 | |
bf67003b | 1869 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 1870 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 1871 | goto success; |
252b5132 | 1872 | |
a50b2160 | 1873 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
1874 | goto fail; |
1875 | ||
eee3b786 AM |
1876 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
1877 | { | |
1878 | if (hdr->sh_size != 0) | |
bf67003b NC |
1879 | goto fail; |
1880 | ||
eee3b786 AM |
1881 | /* Some linkers erroneously set sh_info to one with a |
1882 | zero sh_size. ld sees this as a global symbol count | |
1883 | of (unsigned) -1. Fix it here. */ | |
1884 | hdr->sh_info = 0; | |
bf67003b | 1885 | goto success; |
eee3b786 | 1886 | } |
bf67003b | 1887 | |
252b5132 RH |
1888 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); |
1889 | elf_dynsymtab (abfd) = shindex; | |
1890 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1891 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1892 | abfd->flags |= HAS_SYMS; | |
1893 | ||
1894 | /* Besides being a symbol table, we also treat this as a regular | |
1895 | section, so that objcopy can handle it. */ | |
bf67003b NC |
1896 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1897 | goto success; | |
252b5132 | 1898 | |
bf67003b | 1899 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
9ad5cbcf | 1900 | if (elf_symtab_shndx (abfd) == shindex) |
bf67003b | 1901 | goto success; |
9ad5cbcf | 1902 | |
1b3a8575 | 1903 | BFD_ASSERT (elf_symtab_shndx (abfd) == 0); |
9ad5cbcf AM |
1904 | elf_symtab_shndx (abfd) = shindex; |
1905 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1906 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
bf67003b | 1907 | goto success; |
9ad5cbcf | 1908 | |
bf67003b | 1909 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 1910 | if (hdr->bfd_section != NULL) |
bf67003b NC |
1911 | goto success; |
1912 | ||
252b5132 RH |
1913 | if (ehdr->e_shstrndx == shindex) |
1914 | { | |
1915 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1916 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 1917 | goto success; |
252b5132 | 1918 | } |
bf67003b | 1919 | |
1b3a8575 AM |
1920 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
1921 | { | |
1922 | symtab_strtab: | |
1923 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1924 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 1925 | goto success; |
1b3a8575 | 1926 | } |
bf67003b | 1927 | |
1b3a8575 AM |
1928 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
1929 | { | |
1930 | dynsymtab_strtab: | |
1931 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1932 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
1933 | elf_elfsections (abfd)[shindex] = hdr; | |
1934 | /* We also treat this as a regular section, so that objcopy | |
1935 | can handle it. */ | |
bf67003b NC |
1936 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1937 | shindex); | |
1938 | goto success; | |
1b3a8575 | 1939 | } |
252b5132 | 1940 | |
1b3a8575 AM |
1941 | /* If the string table isn't one of the above, then treat it as a |
1942 | regular section. We need to scan all the headers to be sure, | |
1943 | just in case this strtab section appeared before the above. */ | |
1944 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
1945 | { | |
1946 | unsigned int i, num_sec; | |
252b5132 | 1947 | |
1b3a8575 AM |
1948 | num_sec = elf_numsections (abfd); |
1949 | for (i = 1; i < num_sec; i++) | |
1950 | { | |
1951 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1952 | if (hdr2->sh_link == shindex) | |
1953 | { | |
933d961a JJ |
1954 | /* Prevent endless recursion on broken objects. */ |
1955 | if (i == shindex) | |
bf67003b | 1956 | goto fail; |
1b3a8575 | 1957 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 1958 | goto fail; |
1b3a8575 AM |
1959 | if (elf_onesymtab (abfd) == i) |
1960 | goto symtab_strtab; | |
1961 | if (elf_dynsymtab (abfd) == i) | |
1962 | goto dynsymtab_strtab; | |
1963 | } | |
1964 | } | |
1965 | } | |
bf67003b NC |
1966 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1967 | goto success; | |
252b5132 RH |
1968 | |
1969 | case SHT_REL: | |
1970 | case SHT_RELA: | |
1971 | /* *These* do a lot of work -- but build no sections! */ | |
1972 | { | |
1973 | asection *target_sect; | |
d4730f92 | 1974 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 1975 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 BS |
1976 | struct bfd_elf_section_data *esdt; |
1977 | bfd_size_type amt; | |
252b5132 | 1978 | |
aa2ca951 JJ |
1979 | if (hdr->sh_entsize |
1980 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 1981 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 1982 | goto fail; |
a50b2160 | 1983 | |
03ae5f59 | 1984 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 1985 | if (hdr->sh_link >= num_sec) |
03ae5f59 ILT |
1986 | { |
1987 | ((*_bfd_error_handler) | |
d003868e AM |
1988 | (_("%B: invalid link %lu for reloc section %s (index %u)"), |
1989 | abfd, hdr->sh_link, name, shindex)); | |
bf67003b NC |
1990 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1991 | shindex); | |
1992 | goto success; | |
03ae5f59 ILT |
1993 | } |
1994 | ||
252b5132 RH |
1995 | /* For some incomprehensible reason Oracle distributes |
1996 | libraries for Solaris in which some of the objects have | |
1997 | bogus sh_link fields. It would be nice if we could just | |
1998 | reject them, but, unfortunately, some people need to use | |
1999 | them. We scan through the section headers; if we find only | |
2000 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2001 | to it. I hope this doesn't break anything. |
2002 | ||
2003 | Don't do it on executable nor shared library. */ | |
2004 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2005 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2006 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2007 | { | |
9ad5cbcf | 2008 | unsigned int scan; |
252b5132 RH |
2009 | int found; |
2010 | ||
2011 | found = 0; | |
9ad5cbcf | 2012 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2013 | { |
2014 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2015 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2016 | { | |
2017 | if (found != 0) | |
2018 | { | |
2019 | found = 0; | |
2020 | break; | |
2021 | } | |
2022 | found = scan; | |
2023 | } | |
2024 | } | |
2025 | if (found != 0) | |
2026 | hdr->sh_link = found; | |
2027 | } | |
2028 | ||
2029 | /* Get the symbol table. */ | |
1b3a8575 AM |
2030 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2031 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2032 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2033 | goto fail; |
252b5132 RH |
2034 | |
2035 | /* If this reloc section does not use the main symbol table we | |
2036 | don't treat it as a reloc section. BFD can't adequately | |
2037 | represent such a section, so at least for now, we don't | |
c044fabd | 2038 | try. We just present it as a normal section. We also |
60bcf0fa | 2039 | can't use it as a reloc section if it points to the null |
83b89087 L |
2040 | section, an invalid section, another reloc section, or its |
2041 | sh_link points to the null section. */ | |
185ef66d | 2042 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 2043 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 2044 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2045 | || hdr->sh_info >= num_sec |
2046 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2047 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2048 | { |
2049 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2050 | shindex); | |
2051 | goto success; | |
2052 | } | |
252b5132 RH |
2053 | |
2054 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2055 | goto fail; |
2056 | ||
252b5132 RH |
2057 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2058 | if (target_sect == NULL) | |
bf67003b | 2059 | goto fail; |
252b5132 | 2060 | |
d4730f92 BS |
2061 | esdt = elf_section_data (target_sect); |
2062 | if (hdr->sh_type == SHT_RELA) | |
2063 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2064 | else |
d4730f92 BS |
2065 | p_hdr = &esdt->rel.hdr; |
2066 | ||
06614111 NC |
2067 | /* PR 17512: file: 0b4f81b7. */ |
2068 | if (*p_hdr != NULL) | |
2069 | goto fail; | |
d4730f92 BS |
2070 | amt = sizeof (*hdr2); |
2071 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
2072 | if (hdr2 == NULL) | |
bf67003b | 2073 | goto fail; |
252b5132 | 2074 | *hdr2 = *hdr; |
d4730f92 | 2075 | *p_hdr = hdr2; |
252b5132 | 2076 | elf_elfsections (abfd)[shindex] = hdr2; |
d9bc7a44 | 2077 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
2078 | target_sect->flags |= SEC_RELOC; |
2079 | target_sect->relocation = NULL; | |
2080 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2081 | /* In the section to which the relocations apply, mark whether |
2082 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2083 | if (hdr->sh_size != 0) |
d4730f92 BS |
2084 | { |
2085 | if (hdr->sh_type == SHT_RELA) | |
2086 | target_sect->use_rela_p = 1; | |
2087 | } | |
252b5132 | 2088 | abfd->flags |= HAS_RELOC; |
bf67003b | 2089 | goto success; |
252b5132 | 2090 | } |
252b5132 RH |
2091 | |
2092 | case SHT_GNU_verdef: | |
2093 | elf_dynverdef (abfd) = shindex; | |
2094 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2095 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2096 | goto success; | |
252b5132 RH |
2097 | |
2098 | case SHT_GNU_versym: | |
a50b2160 | 2099 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2100 | goto fail; |
2101 | ||
252b5132 RH |
2102 | elf_dynversym (abfd) = shindex; |
2103 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2104 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2105 | goto success; | |
252b5132 RH |
2106 | |
2107 | case SHT_GNU_verneed: | |
2108 | elf_dynverref (abfd) = shindex; | |
2109 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2110 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2111 | goto success; | |
252b5132 RH |
2112 | |
2113 | case SHT_SHLIB: | |
bf67003b | 2114 | goto success; |
252b5132 | 2115 | |
dbb410c3 | 2116 | case SHT_GROUP: |
44534af3 | 2117 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2118 | goto fail; |
2119 | ||
6dc132d9 | 2120 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2121 | goto fail; |
2122 | ||
dbb410c3 AM |
2123 | if (hdr->contents != NULL) |
2124 | { | |
2125 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
06614111 | 2126 | unsigned int n_elt = hdr->sh_size / sizeof (* idx); |
dbb410c3 AM |
2127 | asection *s; |
2128 | ||
06614111 NC |
2129 | if (n_elt == 0) |
2130 | goto fail; | |
b885599b AM |
2131 | if (idx->flags & GRP_COMDAT) |
2132 | hdr->bfd_section->flags | |
2133 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
2134 | ||
45c5e9ed L |
2135 | /* We try to keep the same section order as it comes in. */ |
2136 | idx += n_elt; | |
06614111 | 2137 | |
dbb410c3 | 2138 | while (--n_elt != 0) |
1783205a NC |
2139 | { |
2140 | --idx; | |
2141 | ||
2142 | if (idx->shdr != NULL | |
2143 | && (s = idx->shdr->bfd_section) != NULL | |
2144 | && elf_next_in_group (s) != NULL) | |
2145 | { | |
2146 | elf_next_in_group (hdr->bfd_section) = s; | |
2147 | break; | |
2148 | } | |
2149 | } | |
dbb410c3 | 2150 | } |
bf67003b | 2151 | goto success; |
dbb410c3 | 2152 | |
252b5132 | 2153 | default: |
104d59d1 JM |
2154 | /* Possibly an attributes section. */ |
2155 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2156 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2157 | { | |
2158 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2159 | goto fail; |
104d59d1 | 2160 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2161 | goto success; |
104d59d1 JM |
2162 | } |
2163 | ||
252b5132 | 2164 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2165 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2166 | goto success; |
3eb70a79 L |
2167 | |
2168 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2169 | { | |
2170 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2171 | /* FIXME: How to properly handle allocated section reserved | |
2172 | for applications? */ | |
2173 | (*_bfd_error_handler) | |
2174 | (_("%B: don't know how to handle allocated, application " | |
2175 | "specific section `%s' [0x%8x]"), | |
2176 | abfd, name, hdr->sh_type); | |
2177 | else | |
bf67003b NC |
2178 | { |
2179 | /* Allow sections reserved for applications. */ | |
2180 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2181 | shindex); | |
2182 | goto success; | |
2183 | } | |
3eb70a79 L |
2184 | } |
2185 | else if (hdr->sh_type >= SHT_LOPROC | |
2186 | && hdr->sh_type <= SHT_HIPROC) | |
2187 | /* FIXME: We should handle this section. */ | |
2188 | (*_bfd_error_handler) | |
2189 | (_("%B: don't know how to handle processor specific section " | |
2190 | "`%s' [0x%8x]"), | |
2191 | abfd, name, hdr->sh_type); | |
2192 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) | |
ff15b240 NC |
2193 | { |
2194 | /* Unrecognised OS-specific sections. */ | |
2195 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2196 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2197 | required to correctly process the section and the file should |
ff15b240 NC |
2198 | be rejected with an error message. */ |
2199 | (*_bfd_error_handler) | |
2200 | (_("%B: don't know how to handle OS specific section " | |
2201 | "`%s' [0x%8x]"), | |
2202 | abfd, name, hdr->sh_type); | |
2203 | else | |
bf67003b NC |
2204 | { |
2205 | /* Otherwise it should be processed. */ | |
2206 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2207 | goto success; | |
2208 | } | |
ff15b240 | 2209 | } |
3eb70a79 L |
2210 | else |
2211 | /* FIXME: We should handle this section. */ | |
2212 | (*_bfd_error_handler) | |
2213 | (_("%B: don't know how to handle section `%s' [0x%8x]"), | |
2214 | abfd, name, hdr->sh_type); | |
2215 | ||
bf67003b | 2216 | goto fail; |
252b5132 RH |
2217 | } |
2218 | ||
bf67003b NC |
2219 | fail: |
2220 | ret = FALSE; | |
2221 | success: | |
e5b470e2 | 2222 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2223 | sections_being_created [shindex] = FALSE; |
2224 | if (-- nesting == 0) | |
5a4b0ccc NC |
2225 | { |
2226 | sections_being_created = NULL; | |
2227 | sections_being_created_abfd = abfd; | |
2228 | } | |
bf67003b | 2229 | return ret; |
252b5132 RH |
2230 | } |
2231 | ||
87d72d41 | 2232 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2233 | |
87d72d41 AM |
2234 | Elf_Internal_Sym * |
2235 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2236 | bfd *abfd, | |
2237 | unsigned long r_symndx) | |
ec338859 | 2238 | { |
ec338859 AM |
2239 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2240 | ||
a5d1b3b5 AM |
2241 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2242 | { | |
2243 | Elf_Internal_Shdr *symtab_hdr; | |
2244 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2245 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2246 | |
a5d1b3b5 AM |
2247 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2248 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2249 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2250 | return NULL; |
9ad5cbcf | 2251 | |
a5d1b3b5 AM |
2252 | if (cache->abfd != abfd) |
2253 | { | |
2254 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2255 | cache->abfd = abfd; | |
2256 | } | |
2257 | cache->indx[ent] = r_symndx; | |
ec338859 | 2258 | } |
a5d1b3b5 | 2259 | |
87d72d41 | 2260 | return &cache->sym[ent]; |
ec338859 AM |
2261 | } |
2262 | ||
252b5132 RH |
2263 | /* Given an ELF section number, retrieve the corresponding BFD |
2264 | section. */ | |
2265 | ||
2266 | asection * | |
91d6fa6a | 2267 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2268 | { |
91d6fa6a | 2269 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2270 | return NULL; |
91d6fa6a | 2271 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2272 | } |
2273 | ||
b35d266b | 2274 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2275 | { |
0112cd26 NC |
2276 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2277 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2278 | }; |
2279 | ||
b35d266b | 2280 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2281 | { |
0112cd26 NC |
2282 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
2283 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2284 | }; |
2285 | ||
b35d266b | 2286 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2287 | { |
0112cd26 NC |
2288 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2289 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2290 | /* There are more DWARF sections than these, but they needn't be added here |
2291 | unless you have to cope with broken compilers that don't emit section | |
2292 | attributes or you want to help the user writing assembler. */ | |
0112cd26 NC |
2293 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2294 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2295 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2296 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2297 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2298 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, | |
2299 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2300 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2301 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2302 | }; |
2303 | ||
b35d266b | 2304 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2305 | { |
0112cd26 NC |
2306 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2307 | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2308 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2309 | }; |
2310 | ||
b35d266b | 2311 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2312 | { |
0112cd26 | 2313 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
68efed41 | 2314 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
0112cd26 NC |
2315 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2316 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
2317 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, | |
2318 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
2319 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, | |
2320 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2321 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2322 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2323 | }; |
2324 | ||
b35d266b | 2325 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2326 | { |
0112cd26 NC |
2327 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2328 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2329 | }; |
2330 | ||
b35d266b | 2331 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2332 | { |
0112cd26 NC |
2333 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2334 | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2335 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, | |
2336 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2337 | }; |
2338 | ||
b35d266b | 2339 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2340 | { |
0112cd26 NC |
2341 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
2342 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2343 | }; |
2344 | ||
b35d266b | 2345 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2346 | { |
0112cd26 NC |
2347 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
2348 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, | |
2349 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2350 | }; |
2351 | ||
b35d266b | 2352 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2353 | { |
0112cd26 NC |
2354 | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
2355 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2356 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2357 | }; |
2358 | ||
b35d266b | 2359 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2360 | { |
0112cd26 NC |
2361 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2362 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2363 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, | |
2364 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2365 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2366 | }; |
2367 | ||
b35d266b | 2368 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2369 | { |
0112cd26 NC |
2370 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2371 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2372 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2373 | /* See struct bfd_elf_special_section declaration for the semantics of |
2374 | this special case where .prefix_length != strlen (.prefix). */ | |
2375 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
0112cd26 | 2376 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2377 | }; |
2378 | ||
b35d266b | 2379 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2380 | { |
0112cd26 NC |
2381 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2382 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2383 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2384 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2385 | }; |
2386 | ||
1b315056 CS |
2387 | static const struct bfd_elf_special_section special_sections_z[] = |
2388 | { | |
2389 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, | |
2390 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
2391 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2392 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2393 | { NULL, 0, 0, 0, 0 } | |
2394 | }; | |
2395 | ||
e4c93b56 | 2396 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2397 | { |
7f4d3958 | 2398 | special_sections_b, /* 'b' */ |
98ece1b3 | 2399 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2400 | special_sections_d, /* 'd' */ |
2401 | NULL, /* 'e' */ | |
2402 | special_sections_f, /* 'f' */ | |
2403 | special_sections_g, /* 'g' */ | |
2404 | special_sections_h, /* 'h' */ | |
2405 | special_sections_i, /* 'i' */ | |
2406 | NULL, /* 'j' */ | |
2407 | NULL, /* 'k' */ | |
2408 | special_sections_l, /* 'l' */ | |
2409 | NULL, /* 'm' */ | |
2410 | special_sections_n, /* 'n' */ | |
2411 | NULL, /* 'o' */ | |
2412 | special_sections_p, /* 'p' */ | |
2413 | NULL, /* 'q' */ | |
2414 | special_sections_r, /* 'r' */ | |
2415 | special_sections_s, /* 's' */ | |
2416 | special_sections_t, /* 't' */ | |
1b315056 CS |
2417 | NULL, /* 'u' */ |
2418 | NULL, /* 'v' */ | |
2419 | NULL, /* 'w' */ | |
2420 | NULL, /* 'x' */ | |
2421 | NULL, /* 'y' */ | |
2422 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2423 | }; |
2424 | ||
551b43fd AM |
2425 | const struct bfd_elf_special_section * |
2426 | _bfd_elf_get_special_section (const char *name, | |
2427 | const struct bfd_elf_special_section *spec, | |
2428 | unsigned int rela) | |
2f89ff8d L |
2429 | { |
2430 | int i; | |
7f4d3958 | 2431 | int len; |
7f4d3958 | 2432 | |
551b43fd | 2433 | len = strlen (name); |
7f4d3958 | 2434 | |
551b43fd | 2435 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2436 | { |
2437 | int suffix_len; | |
551b43fd | 2438 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2439 | |
2440 | if (len < prefix_len) | |
2441 | continue; | |
551b43fd | 2442 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2443 | continue; |
2444 | ||
551b43fd | 2445 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2446 | if (suffix_len <= 0) |
2447 | { | |
2448 | if (name[prefix_len] != 0) | |
2449 | { | |
2450 | if (suffix_len == 0) | |
2451 | continue; | |
2452 | if (name[prefix_len] != '.' | |
2453 | && (suffix_len == -2 | |
551b43fd | 2454 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2455 | continue; |
2456 | } | |
2457 | } | |
2458 | else | |
2459 | { | |
2460 | if (len < prefix_len + suffix_len) | |
2461 | continue; | |
2462 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2463 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2464 | suffix_len) != 0) |
2465 | continue; | |
2466 | } | |
551b43fd | 2467 | return &spec[i]; |
7dcb9820 | 2468 | } |
2f89ff8d L |
2469 | |
2470 | return NULL; | |
2471 | } | |
2472 | ||
7dcb9820 | 2473 | const struct bfd_elf_special_section * |
29ef7005 | 2474 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2475 | { |
551b43fd AM |
2476 | int i; |
2477 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2478 | const struct elf_backend_data *bed; |
2f89ff8d L |
2479 | |
2480 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2481 | if (sec->name == NULL) |
2482 | return NULL; | |
2f89ff8d | 2483 | |
29ef7005 L |
2484 | bed = get_elf_backend_data (abfd); |
2485 | spec = bed->special_sections; | |
2486 | if (spec) | |
2487 | { | |
2488 | spec = _bfd_elf_get_special_section (sec->name, | |
2489 | bed->special_sections, | |
2490 | sec->use_rela_p); | |
2491 | if (spec != NULL) | |
2492 | return spec; | |
2493 | } | |
2494 | ||
551b43fd AM |
2495 | if (sec->name[0] != '.') |
2496 | return NULL; | |
2f89ff8d | 2497 | |
551b43fd | 2498 | i = sec->name[1] - 'b'; |
1b315056 | 2499 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2500 | return NULL; |
2501 | ||
2502 | spec = special_sections[i]; | |
2f89ff8d | 2503 | |
551b43fd AM |
2504 | if (spec == NULL) |
2505 | return NULL; | |
2506 | ||
2507 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2508 | } |
2509 | ||
b34976b6 | 2510 | bfd_boolean |
217aa764 | 2511 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2512 | { |
2513 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2514 | const struct elf_backend_data *bed; |
7dcb9820 | 2515 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2516 | |
f0abc2a1 AM |
2517 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2518 | if (sdata == NULL) | |
2519 | { | |
a50b1753 NC |
2520 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
2521 | sizeof (*sdata)); | |
f0abc2a1 AM |
2522 | if (sdata == NULL) |
2523 | return FALSE; | |
217aa764 | 2524 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2525 | } |
bf572ba0 | 2526 | |
551b43fd AM |
2527 | /* Indicate whether or not this section should use RELA relocations. */ |
2528 | bed = get_elf_backend_data (abfd); | |
2529 | sec->use_rela_p = bed->default_use_rela_p; | |
2530 | ||
e843e0f8 L |
2531 | /* When we read a file, we don't need to set ELF section type and |
2532 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2533 | anyway. We will set ELF section type and flags for all linker | |
2534 | created sections. If user specifies BFD section flags, we will | |
2535 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2536 | elf_fake_sections. Special handling for .init_array/.fini_array |
2537 | output sections since they may contain .ctors/.dtors input | |
2538 | sections. We don't want _bfd_elf_init_private_section_data to | |
2539 | copy ELF section type from .ctors/.dtors input sections. */ | |
2540 | if (abfd->direction != read_direction | |
3496cb2a | 2541 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2542 | { |
551b43fd | 2543 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2544 | if (ssect != NULL |
2545 | && (!sec->flags | |
2546 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2547 | || ssect->type == SHT_INIT_ARRAY | |
2548 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2549 | { |
2550 | elf_section_type (sec) = ssect->type; | |
2551 | elf_section_flags (sec) = ssect->attr; | |
2552 | } | |
2f89ff8d L |
2553 | } |
2554 | ||
f592407e | 2555 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2556 | } |
2557 | ||
2558 | /* Create a new bfd section from an ELF program header. | |
2559 | ||
2560 | Since program segments have no names, we generate a synthetic name | |
2561 | of the form segment<NUM>, where NUM is generally the index in the | |
2562 | program header table. For segments that are split (see below) we | |
2563 | generate the names segment<NUM>a and segment<NUM>b. | |
2564 | ||
2565 | Note that some program segments may have a file size that is different than | |
2566 | (less than) the memory size. All this means is that at execution the | |
2567 | system must allocate the amount of memory specified by the memory size, | |
2568 | but only initialize it with the first "file size" bytes read from the | |
2569 | file. This would occur for example, with program segments consisting | |
2570 | of combined data+bss. | |
2571 | ||
2572 | To handle the above situation, this routine generates TWO bfd sections | |
2573 | for the single program segment. The first has the length specified by | |
2574 | the file size of the segment, and the second has the length specified | |
2575 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2576 | into its initialized and uninitialized parts. |
252b5132 RH |
2577 | |
2578 | */ | |
2579 | ||
b34976b6 | 2580 | bfd_boolean |
217aa764 AM |
2581 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2582 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2583 | int hdr_index, |
a50b1753 | 2584 | const char *type_name) |
252b5132 RH |
2585 | { |
2586 | asection *newsect; | |
2587 | char *name; | |
2588 | char namebuf[64]; | |
d4c88bbb | 2589 | size_t len; |
252b5132 RH |
2590 | int split; |
2591 | ||
2592 | split = ((hdr->p_memsz > 0) | |
2593 | && (hdr->p_filesz > 0) | |
2594 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2595 | |
2596 | if (hdr->p_filesz > 0) | |
252b5132 | 2597 | { |
91d6fa6a | 2598 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2599 | len = strlen (namebuf) + 1; |
a50b1753 | 2600 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2601 | if (!name) |
2602 | return FALSE; | |
2603 | memcpy (name, namebuf, len); | |
2604 | newsect = bfd_make_section (abfd, name); | |
2605 | if (newsect == NULL) | |
2606 | return FALSE; | |
2607 | newsect->vma = hdr->p_vaddr; | |
2608 | newsect->lma = hdr->p_paddr; | |
2609 | newsect->size = hdr->p_filesz; | |
2610 | newsect->filepos = hdr->p_offset; | |
2611 | newsect->flags |= SEC_HAS_CONTENTS; | |
2612 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2613 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2614 | { |
d5191d0c AM |
2615 | newsect->flags |= SEC_ALLOC; |
2616 | newsect->flags |= SEC_LOAD; | |
2617 | if (hdr->p_flags & PF_X) | |
2618 | { | |
2619 | /* FIXME: all we known is that it has execute PERMISSION, | |
2620 | may be data. */ | |
2621 | newsect->flags |= SEC_CODE; | |
2622 | } | |
2623 | } | |
2624 | if (!(hdr->p_flags & PF_W)) | |
2625 | { | |
2626 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2627 | } |
252b5132 RH |
2628 | } |
2629 | ||
d5191d0c | 2630 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2631 | { |
d5191d0c AM |
2632 | bfd_vma align; |
2633 | ||
91d6fa6a | 2634 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2635 | len = strlen (namebuf) + 1; |
a50b1753 | 2636 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2637 | if (!name) |
b34976b6 | 2638 | return FALSE; |
d4c88bbb | 2639 | memcpy (name, namebuf, len); |
252b5132 RH |
2640 | newsect = bfd_make_section (abfd, name); |
2641 | if (newsect == NULL) | |
b34976b6 | 2642 | return FALSE; |
252b5132 RH |
2643 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2644 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2645 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2646 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2647 | align = newsect->vma & -newsect->vma; | |
2648 | if (align == 0 || align > hdr->p_align) | |
2649 | align = hdr->p_align; | |
2650 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2651 | if (hdr->p_type == PT_LOAD) |
2652 | { | |
d5191d0c AM |
2653 | /* Hack for gdb. Segments that have not been modified do |
2654 | not have their contents written to a core file, on the | |
2655 | assumption that a debugger can find the contents in the | |
2656 | executable. We flag this case by setting the fake | |
2657 | section size to zero. Note that "real" bss sections will | |
2658 | always have their contents dumped to the core file. */ | |
2659 | if (bfd_get_format (abfd) == bfd_core) | |
2660 | newsect->size = 0; | |
252b5132 RH |
2661 | newsect->flags |= SEC_ALLOC; |
2662 | if (hdr->p_flags & PF_X) | |
2663 | newsect->flags |= SEC_CODE; | |
2664 | } | |
2665 | if (!(hdr->p_flags & PF_W)) | |
2666 | newsect->flags |= SEC_READONLY; | |
2667 | } | |
2668 | ||
b34976b6 | 2669 | return TRUE; |
252b5132 RH |
2670 | } |
2671 | ||
b34976b6 | 2672 | bfd_boolean |
91d6fa6a | 2673 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2674 | { |
9c5bfbb7 | 2675 | const struct elf_backend_data *bed; |
20cfcaae NC |
2676 | |
2677 | switch (hdr->p_type) | |
2678 | { | |
2679 | case PT_NULL: | |
91d6fa6a | 2680 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2681 | |
2682 | case PT_LOAD: | |
91d6fa6a | 2683 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2684 | |
2685 | case PT_DYNAMIC: | |
91d6fa6a | 2686 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
2687 | |
2688 | case PT_INTERP: | |
91d6fa6a | 2689 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
2690 | |
2691 | case PT_NOTE: | |
91d6fa6a | 2692 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 2693 | return FALSE; |
718175fa | 2694 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) |
b34976b6 AM |
2695 | return FALSE; |
2696 | return TRUE; | |
20cfcaae NC |
2697 | |
2698 | case PT_SHLIB: | |
91d6fa6a | 2699 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
2700 | |
2701 | case PT_PHDR: | |
91d6fa6a | 2702 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 2703 | |
811072d8 | 2704 | case PT_GNU_EH_FRAME: |
91d6fa6a | 2705 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
2706 | "eh_frame_hdr"); |
2707 | ||
2b05f1b7 | 2708 | case PT_GNU_STACK: |
91d6fa6a | 2709 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 2710 | |
8c37241b | 2711 | case PT_GNU_RELRO: |
91d6fa6a | 2712 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 2713 | |
20cfcaae | 2714 | default: |
8c1acd09 | 2715 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 2716 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 2717 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
2718 | } |
2719 | } | |
2720 | ||
d4730f92 BS |
2721 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
2722 | REL or RELA. */ | |
2723 | ||
2724 | Elf_Internal_Shdr * | |
2725 | _bfd_elf_single_rel_hdr (asection *sec) | |
2726 | { | |
2727 | if (elf_section_data (sec)->rel.hdr) | |
2728 | { | |
2729 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
2730 | return elf_section_data (sec)->rel.hdr; | |
2731 | } | |
2732 | else | |
2733 | return elf_section_data (sec)->rela.hdr; | |
2734 | } | |
2735 | ||
3e19fb8f L |
2736 | static bfd_boolean |
2737 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
2738 | Elf_Internal_Shdr *rel_hdr, | |
2739 | const char *sec_name, | |
2740 | bfd_boolean use_rela_p) | |
2741 | { | |
2742 | char *name = (char *) bfd_alloc (abfd, | |
2743 | sizeof ".rela" + strlen (sec_name)); | |
2744 | if (name == NULL) | |
2745 | return FALSE; | |
2746 | ||
2747 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
2748 | rel_hdr->sh_name = | |
2749 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
2750 | FALSE); | |
2751 | if (rel_hdr->sh_name == (unsigned int) -1) | |
2752 | return FALSE; | |
2753 | ||
2754 | return TRUE; | |
2755 | } | |
2756 | ||
d4730f92 BS |
2757 | /* Allocate and initialize a section-header for a new reloc section, |
2758 | containing relocations against ASECT. It is stored in RELDATA. If | |
2759 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
2760 | relocations. */ | |
23bc299b | 2761 | |
5d13b3b3 | 2762 | static bfd_boolean |
217aa764 | 2763 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 2764 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 2765 | const char *sec_name, |
3e19fb8f L |
2766 | bfd_boolean use_rela_p, |
2767 | bfd_boolean delay_st_name_p) | |
23bc299b | 2768 | { |
d4730f92 | 2769 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 2770 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2771 | bfd_size_type amt; |
2772 | ||
2773 | amt = sizeof (Elf_Internal_Shdr); | |
2774 | BFD_ASSERT (reldata->hdr == NULL); | |
2775 | rel_hdr = bfd_zalloc (abfd, amt); | |
2776 | reldata->hdr = rel_hdr; | |
23bc299b | 2777 | |
3e19fb8f L |
2778 | if (delay_st_name_p) |
2779 | rel_hdr->sh_name = (unsigned int) -1; | |
2780 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
2781 | use_rela_p)) | |
b34976b6 | 2782 | return FALSE; |
23bc299b MM |
2783 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
2784 | rel_hdr->sh_entsize = (use_rela_p | |
2785 | ? bed->s->sizeof_rela | |
2786 | : bed->s->sizeof_rel); | |
72de5009 | 2787 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
23bc299b MM |
2788 | rel_hdr->sh_flags = 0; |
2789 | rel_hdr->sh_addr = 0; | |
2790 | rel_hdr->sh_size = 0; | |
2791 | rel_hdr->sh_offset = 0; | |
2792 | ||
b34976b6 | 2793 | return TRUE; |
23bc299b MM |
2794 | } |
2795 | ||
94be91de JB |
2796 | /* Return the default section type based on the passed in section flags. */ |
2797 | ||
2798 | int | |
2799 | bfd_elf_get_default_section_type (flagword flags) | |
2800 | { | |
2801 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 2802 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
2803 | return SHT_NOBITS; |
2804 | return SHT_PROGBITS; | |
2805 | } | |
2806 | ||
d4730f92 BS |
2807 | struct fake_section_arg |
2808 | { | |
2809 | struct bfd_link_info *link_info; | |
2810 | bfd_boolean failed; | |
2811 | }; | |
2812 | ||
252b5132 RH |
2813 | /* Set up an ELF internal section header for a section. */ |
2814 | ||
252b5132 | 2815 | static void |
d4730f92 | 2816 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 2817 | { |
d4730f92 | 2818 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 2819 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 2820 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 2821 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 2822 | unsigned int sh_type; |
0ce398f1 | 2823 | const char *name = asect->name; |
3e19fb8f | 2824 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 2825 | |
d4730f92 | 2826 | if (arg->failed) |
252b5132 RH |
2827 | { |
2828 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 2829 | loop. */ |
252b5132 RH |
2830 | return; |
2831 | } | |
2832 | ||
d4730f92 | 2833 | this_hdr = &esd->this_hdr; |
252b5132 | 2834 | |
f6fe1ccd | 2835 | if (arg->link_info) |
0ce398f1 | 2836 | { |
f6fe1ccd L |
2837 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
2838 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
2839 | && (asect->flags & SEC_DEBUGGING) | |
2840 | && name[1] == 'd' | |
2841 | && name[6] == '_') | |
2842 | { | |
2843 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
2844 | compressed. */ | |
2845 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 2846 | |
3e19fb8f L |
2847 | /* If this section will be compressed, delay adding setion |
2848 | name to section name section after it is compressed in | |
2849 | _bfd_elf_assign_file_positions_for_non_load. */ | |
2850 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
2851 | } |
2852 | } | |
2853 | else if ((asect->flags & SEC_ELF_RENAME)) | |
2854 | { | |
2855 | /* objcopy: rename output DWARF debug section. */ | |
2856 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
2857 | { | |
2858 | /* When we decompress or compress with SHF_COMPRESSED, | |
2859 | convert section name from .zdebug_* to .debug_* if | |
2860 | needed. */ | |
2861 | if (name[1] == 'z') | |
2862 | { | |
2863 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
2864 | if (new_name == NULL) | |
2865 | { | |
2866 | arg->failed = TRUE; | |
2867 | return; | |
2868 | } | |
2869 | name = new_name; | |
2870 | } | |
2871 | } | |
2872 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 2873 | { |
f6fe1ccd L |
2874 | /* PR binutils/18087: Compression does not always make a |
2875 | section smaller. So only rename the section when | |
2876 | compression has actually taken place. If input section | |
2877 | name is .zdebug_*, we should never compress it again. */ | |
2878 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
2879 | if (new_name == NULL) |
2880 | { | |
2881 | arg->failed = TRUE; | |
2882 | return; | |
2883 | } | |
f6fe1ccd L |
2884 | BFD_ASSERT (name[1] != 'z'); |
2885 | name = new_name; | |
0ce398f1 L |
2886 | } |
2887 | } | |
2888 | ||
3e19fb8f L |
2889 | if (delay_st_name_p) |
2890 | this_hdr->sh_name = (unsigned int) -1; | |
2891 | else | |
252b5132 | 2892 | { |
3e19fb8f L |
2893 | this_hdr->sh_name |
2894 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
2895 | name, FALSE); | |
2896 | if (this_hdr->sh_name == (unsigned int) -1) | |
2897 | { | |
2898 | arg->failed = TRUE; | |
2899 | return; | |
2900 | } | |
252b5132 RH |
2901 | } |
2902 | ||
a4d8e49b | 2903 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
2904 | |
2905 | if ((asect->flags & SEC_ALLOC) != 0 | |
2906 | || asect->user_set_vma) | |
2907 | this_hdr->sh_addr = asect->vma; | |
2908 | else | |
2909 | this_hdr->sh_addr = 0; | |
2910 | ||
2911 | this_hdr->sh_offset = 0; | |
eea6121a | 2912 | this_hdr->sh_size = asect->size; |
252b5132 | 2913 | this_hdr->sh_link = 0; |
c86934ce NC |
2914 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
2915 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
2916 | { | |
2917 | (*_bfd_error_handler) | |
2918 | (_("%B: error: Alignment power %d of section `%A' is too big"), | |
2919 | abfd, asect, asect->alignment_power); | |
2920 | arg->failed = TRUE; | |
2921 | return; | |
2922 | } | |
72de5009 | 2923 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
2924 | /* The sh_entsize and sh_info fields may have been set already by |
2925 | copy_private_section_data. */ | |
2926 | ||
2927 | this_hdr->bfd_section = asect; | |
2928 | this_hdr->contents = NULL; | |
2929 | ||
3cddba1e L |
2930 | /* If the section type is unspecified, we set it based on |
2931 | asect->flags. */ | |
98ece1b3 AM |
2932 | if ((asect->flags & SEC_GROUP) != 0) |
2933 | sh_type = SHT_GROUP; | |
98ece1b3 | 2934 | else |
94be91de | 2935 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 2936 | |
3cddba1e | 2937 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
2938 | this_hdr->sh_type = sh_type; |
2939 | else if (this_hdr->sh_type == SHT_NOBITS | |
2940 | && sh_type == SHT_PROGBITS | |
2941 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 2942 | { |
98ece1b3 AM |
2943 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
2944 | allow the link to proceed. This can happen when users link | |
2945 | non-bss input sections to bss output sections, or emit data | |
2946 | to a bss output section via a linker script. */ | |
2947 | (*_bfd_error_handler) | |
58f0869b | 2948 | (_("warning: section `%A' type changed to PROGBITS"), asect); |
98ece1b3 | 2949 | this_hdr->sh_type = sh_type; |
3cddba1e L |
2950 | } |
2951 | ||
2f89ff8d | 2952 | switch (this_hdr->sh_type) |
252b5132 | 2953 | { |
2f89ff8d | 2954 | default: |
2f89ff8d L |
2955 | break; |
2956 | ||
2957 | case SHT_STRTAB: | |
2958 | case SHT_INIT_ARRAY: | |
2959 | case SHT_FINI_ARRAY: | |
2960 | case SHT_PREINIT_ARRAY: | |
2961 | case SHT_NOTE: | |
2962 | case SHT_NOBITS: | |
2963 | case SHT_PROGBITS: | |
2964 | break; | |
2965 | ||
2966 | case SHT_HASH: | |
c7ac6ff8 | 2967 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 2968 | break; |
5de3bf90 | 2969 | |
2f89ff8d | 2970 | case SHT_DYNSYM: |
252b5132 | 2971 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
2972 | break; |
2973 | ||
2974 | case SHT_DYNAMIC: | |
252b5132 | 2975 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
2976 | break; |
2977 | ||
2978 | case SHT_RELA: | |
2979 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
2980 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2981 | break; | |
2982 | ||
2983 | case SHT_REL: | |
2984 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
2985 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2986 | break; | |
2987 | ||
2988 | case SHT_GNU_versym: | |
252b5132 | 2989 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
2990 | break; |
2991 | ||
2992 | case SHT_GNU_verdef: | |
252b5132 RH |
2993 | this_hdr->sh_entsize = 0; |
2994 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2995 | cverdefs. The linker will set cverdefs, but sh_info will be |
2996 | zero. */ | |
252b5132 RH |
2997 | if (this_hdr->sh_info == 0) |
2998 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2999 | else | |
3000 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3001 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3002 | break; |
3003 | ||
3004 | case SHT_GNU_verneed: | |
252b5132 RH |
3005 | this_hdr->sh_entsize = 0; |
3006 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3007 | cverrefs. The linker will set cverrefs, but sh_info will be |
3008 | zero. */ | |
252b5132 RH |
3009 | if (this_hdr->sh_info == 0) |
3010 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3011 | else | |
3012 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3013 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3014 | break; |
3015 | ||
3016 | case SHT_GROUP: | |
1783205a | 3017 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3018 | break; |
fdc90cb4 JJ |
3019 | |
3020 | case SHT_GNU_HASH: | |
3021 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3022 | break; | |
dbb410c3 | 3023 | } |
252b5132 RH |
3024 | |
3025 | if ((asect->flags & SEC_ALLOC) != 0) | |
3026 | this_hdr->sh_flags |= SHF_ALLOC; | |
3027 | if ((asect->flags & SEC_READONLY) == 0) | |
3028 | this_hdr->sh_flags |= SHF_WRITE; | |
3029 | if ((asect->flags & SEC_CODE) != 0) | |
3030 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3031 | if ((asect->flags & SEC_MERGE) != 0) |
3032 | { | |
3033 | this_hdr->sh_flags |= SHF_MERGE; | |
3034 | this_hdr->sh_entsize = asect->entsize; | |
3035 | if ((asect->flags & SEC_STRINGS) != 0) | |
3036 | this_hdr->sh_flags |= SHF_STRINGS; | |
3037 | } | |
1126897b | 3038 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3039 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3040 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3041 | { |
3042 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3043 | if (asect->size == 0 |
3044 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3045 | { |
3a800eb9 | 3046 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3047 | |
704afa60 | 3048 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3049 | if (o != NULL) |
3050 | { | |
704afa60 | 3051 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3052 | if (this_hdr->sh_size != 0) |
3053 | this_hdr->sh_type = SHT_NOBITS; | |
3054 | } | |
704afa60 JJ |
3055 | } |
3056 | } | |
18ae9cc1 L |
3057 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3058 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3059 | |
d4730f92 BS |
3060 | /* If the section has relocs, set up a section header for the |
3061 | SHT_REL[A] section. If two relocation sections are required for | |
3062 | this section, it is up to the processor-specific back-end to | |
3063 | create the other. */ | |
3064 | if ((asect->flags & SEC_RELOC) != 0) | |
3065 | { | |
3066 | /* When doing a relocatable link, create both REL and RELA sections if | |
3067 | needed. */ | |
3068 | if (arg->link_info | |
3069 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3070 | && esd->rel.count + esd->rela.count > 0 | |
3071 | && (arg->link_info->relocatable || arg->link_info->emitrelocations)) | |
3072 | { | |
3073 | if (esd->rel.count && esd->rel.hdr == NULL | |
3e19fb8f L |
3074 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, FALSE, |
3075 | delay_st_name_p)) | |
d4730f92 BS |
3076 | { |
3077 | arg->failed = TRUE; | |
3078 | return; | |
3079 | } | |
3080 | if (esd->rela.count && esd->rela.hdr == NULL | |
3e19fb8f L |
3081 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, TRUE, |
3082 | delay_st_name_p)) | |
d4730f92 BS |
3083 | { |
3084 | arg->failed = TRUE; | |
3085 | return; | |
3086 | } | |
3087 | } | |
3088 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3089 | (asect->use_rela_p | |
3090 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3091 | name, |
3e19fb8f L |
3092 | asect->use_rela_p, |
3093 | delay_st_name_p)) | |
d4730f92 BS |
3094 | arg->failed = TRUE; |
3095 | } | |
3096 | ||
252b5132 | 3097 | /* Check for processor-specific section types. */ |
0414f35b | 3098 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3099 | if (bed->elf_backend_fake_sections |
3100 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
d4730f92 | 3101 | arg->failed = TRUE; |
252b5132 | 3102 | |
42bb2e33 | 3103 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3104 | { |
3105 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3106 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3107 | this_hdr->sh_type = sh_type; |
3108 | } | |
252b5132 RH |
3109 | } |
3110 | ||
bcacc0f5 AM |
3111 | /* Fill in the contents of a SHT_GROUP section. Called from |
3112 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3113 | when ELF targets use the generic linker, ld. Called for ld -r | |
3114 | from bfd_elf_final_link. */ | |
dbb410c3 | 3115 | |
1126897b | 3116 | void |
217aa764 | 3117 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3118 | { |
a50b1753 | 3119 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3120 | asection *elt, *first; |
dbb410c3 | 3121 | unsigned char *loc; |
b34976b6 | 3122 | bfd_boolean gas; |
dbb410c3 | 3123 | |
7e4111ad L |
3124 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3125 | elfxx-ia64.c. */ | |
3126 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
3127 | || *failedptr) |
3128 | return; | |
3129 | ||
bcacc0f5 AM |
3130 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3131 | { | |
3132 | unsigned long symindx = 0; | |
3133 | ||
3134 | /* elf_group_id will have been set up by objcopy and the | |
3135 | generic linker. */ | |
3136 | if (elf_group_id (sec) != NULL) | |
3137 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3138 | |
bcacc0f5 AM |
3139 | if (symindx == 0) |
3140 | { | |
3141 | /* If called from the assembler, swap_out_syms will have set up | |
3142 | elf_section_syms. */ | |
3143 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3144 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3145 | } | |
3146 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3147 | } | |
3148 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3149 | { |
bcacc0f5 AM |
3150 | /* The ELF backend linker sets sh_info to -2 when the group |
3151 | signature symbol is global, and thus the index can't be | |
3152 | set until all local symbols are output. */ | |
3153 | asection *igroup = elf_sec_group (elf_next_in_group (sec)); | |
3154 | struct bfd_elf_section_data *sec_data = elf_section_data (igroup); | |
3155 | unsigned long symndx = sec_data->this_hdr.sh_info; | |
3156 | unsigned long extsymoff = 0; | |
3157 | struct elf_link_hash_entry *h; | |
3158 | ||
3159 | if (!elf_bad_symtab (igroup->owner)) | |
3160 | { | |
3161 | Elf_Internal_Shdr *symtab_hdr; | |
3162 | ||
3163 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3164 | extsymoff = symtab_hdr->sh_info; | |
3165 | } | |
3166 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3167 | while (h->root.type == bfd_link_hash_indirect | |
3168 | || h->root.type == bfd_link_hash_warning) | |
3169 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3170 | ||
3171 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3172 | } |
dbb410c3 | 3173 | |
1126897b | 3174 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3175 | gas = TRUE; |
dbb410c3 AM |
3176 | if (sec->contents == NULL) |
3177 | { | |
b34976b6 | 3178 | gas = FALSE; |
a50b1753 | 3179 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3180 | |
3181 | /* Arrange for the section to be written out. */ | |
3182 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3183 | if (sec->contents == NULL) |
3184 | { | |
b34976b6 | 3185 | *failedptr = TRUE; |
dbb410c3 AM |
3186 | return; |
3187 | } | |
3188 | } | |
3189 | ||
eea6121a | 3190 | loc = sec->contents + sec->size; |
dbb410c3 | 3191 | |
9dce4196 AM |
3192 | /* Get the pointer to the first section in the group that gas |
3193 | squirreled away here. objcopy arranges for this to be set to the | |
3194 | start of the input section group. */ | |
3195 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3196 | |
3197 | /* First element is a flag word. Rest of section is elf section | |
3198 | indices for all the sections of the group. Write them backwards | |
3199 | just to keep the group in the same order as given in .section | |
3200 | directives, not that it matters. */ | |
3201 | while (elt != NULL) | |
3202 | { | |
9dce4196 | 3203 | asection *s; |
9dce4196 | 3204 | |
9dce4196 | 3205 | s = elt; |
415f38a6 AM |
3206 | if (!gas) |
3207 | s = s->output_section; | |
3208 | if (s != NULL | |
3209 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3210 | { |
415f38a6 AM |
3211 | unsigned int idx = elf_section_data (s)->this_idx; |
3212 | ||
01e1a5bc | 3213 | loc -= 4; |
01e1a5bc NC |
3214 | H_PUT_32 (abfd, idx, loc); |
3215 | } | |
945906ff | 3216 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3217 | if (elt == first) |
3218 | break; | |
dbb410c3 AM |
3219 | } |
3220 | ||
3d7f7666 | 3221 | if ((loc -= 4) != sec->contents) |
9dce4196 | 3222 | abort (); |
dbb410c3 | 3223 | |
9dce4196 | 3224 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3225 | } |
3226 | ||
bd53a53a L |
3227 | /* Return the section which RELOC_SEC applies to. */ |
3228 | ||
3229 | asection * | |
3230 | _bfd_elf_get_reloc_section (asection *reloc_sec) | |
3231 | { | |
3232 | const char *name; | |
3233 | unsigned int type; | |
3234 | bfd *abfd; | |
3235 | ||
3236 | if (reloc_sec == NULL) | |
3237 | return NULL; | |
3238 | ||
3239 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3240 | if (type != SHT_REL && type != SHT_RELA) | |
3241 | return NULL; | |
3242 | ||
3243 | /* We look up the section the relocs apply to by name. */ | |
3244 | name = reloc_sec->name; | |
3245 | if (type == SHT_REL) | |
3246 | name += 4; | |
3247 | else | |
3248 | name += 5; | |
3249 | ||
3250 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3251 | section apply to .got.plt section. */ | |
3252 | abfd = reloc_sec->owner; | |
3253 | if (get_elf_backend_data (abfd)->want_got_plt | |
3254 | && strcmp (name, ".plt") == 0) | |
87070c08 AM |
3255 | { |
3256 | /* .got.plt is a linker created input section. It may be mapped | |
3257 | to some other output section. Try two likely sections. */ | |
3258 | name = ".got.plt"; | |
3259 | reloc_sec = bfd_get_section_by_name (abfd, name); | |
3260 | if (reloc_sec != NULL) | |
3261 | return reloc_sec; | |
3262 | name = ".got"; | |
3263 | } | |
bd53a53a L |
3264 | |
3265 | reloc_sec = bfd_get_section_by_name (abfd, name); | |
3266 | return reloc_sec; | |
3267 | } | |
3268 | ||
252b5132 RH |
3269 | /* Assign all ELF section numbers. The dummy first section is handled here |
3270 | too. The link/info pointers for the standard section types are filled | |
3271 | in here too, while we're at it. */ | |
3272 | ||
b34976b6 | 3273 | static bfd_boolean |
da9f89d4 | 3274 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3275 | { |
3276 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3277 | asection *sec; | |
3e19fb8f | 3278 | unsigned int section_number; |
252b5132 | 3279 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3280 | struct bfd_elf_section_data *d; |
3516e984 | 3281 | bfd_boolean need_symtab; |
252b5132 RH |
3282 | |
3283 | section_number = 1; | |
3284 | ||
2b0f7ef9 JJ |
3285 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3286 | ||
da9f89d4 L |
3287 | /* SHT_GROUP sections are in relocatable files only. */ |
3288 | if (link_info == NULL || link_info->relocatable) | |
252b5132 | 3289 | { |
da9f89d4 | 3290 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3291 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3292 | { |
5daa8fe7 | 3293 | d = elf_section_data (sec); |
da9f89d4 L |
3294 | |
3295 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3296 | { |
5daa8fe7 | 3297 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3298 | { |
3299 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3300 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3301 | abfd->section_count--; |
da9f89d4 | 3302 | } |
08a40648 | 3303 | else |
4fbb74a6 | 3304 | d->this_idx = section_number++; |
da9f89d4 | 3305 | } |
47cc2cf5 PB |
3306 | } |
3307 | } | |
3308 | ||
3309 | for (sec = abfd->sections; sec; sec = sec->next) | |
3310 | { | |
3311 | d = elf_section_data (sec); | |
3312 | ||
3313 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3314 | d->this_idx = section_number++; |
3e19fb8f L |
3315 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3316 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3317 | if (d->rel.hdr) |
2b0f7ef9 | 3318 | { |
d4730f92 | 3319 | d->rel.idx = section_number++; |
3e19fb8f L |
3320 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3321 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3322 | } |
d4730f92 BS |
3323 | else |
3324 | d->rel.idx = 0; | |
23bc299b | 3325 | |
d4730f92 | 3326 | if (d->rela.hdr) |
2b0f7ef9 | 3327 | { |
d4730f92 | 3328 | d->rela.idx = section_number++; |
3e19fb8f L |
3329 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3330 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3331 | } |
23bc299b | 3332 | else |
d4730f92 | 3333 | d->rela.idx = 0; |
252b5132 RH |
3334 | } |
3335 | ||
12bd6957 | 3336 | elf_shstrtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3337 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
12bd6957 | 3338 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); |
252b5132 | 3339 | |
3516e984 L |
3340 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3341 | || (link_info == NULL | |
3342 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3343 | == HAS_RELOC))); | |
3344 | if (need_symtab) | |
252b5132 | 3345 | { |
12bd6957 | 3346 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3347 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3348 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3349 | { |
12bd6957 | 3350 | elf_symtab_shndx (abfd) = section_number++; |
9ad5cbcf AM |
3351 | t->symtab_shndx_hdr.sh_name |
3352 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
b34976b6 | 3353 | ".symtab_shndx", FALSE); |
9ad5cbcf | 3354 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3355 | return FALSE; |
9ad5cbcf | 3356 | } |
12bd6957 | 3357 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3358 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3359 | } |
3360 | ||
1c52a645 L |
3361 | if (section_number >= SHN_LORESERVE) |
3362 | { | |
3363 | _bfd_error_handler (_("%B: too many sections: %u"), | |
3364 | abfd, section_number); | |
3365 | return FALSE; | |
3366 | } | |
3367 | ||
9ad5cbcf | 3368 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3369 | elf_elfheader (abfd)->e_shnum = section_number; |
3370 | ||
3371 | /* Set up the list of section header pointers, in agreement with the | |
3372 | indices. */ | |
a50b1753 NC |
3373 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
3374 | sizeof (Elf_Internal_Shdr *)); | |
252b5132 | 3375 | if (i_shdrp == NULL) |
b34976b6 | 3376 | return FALSE; |
252b5132 | 3377 | |
a50b1753 NC |
3378 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
3379 | sizeof (Elf_Internal_Shdr)); | |
252b5132 RH |
3380 | if (i_shdrp[0] == NULL) |
3381 | { | |
3382 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3383 | return FALSE; |
252b5132 | 3384 | } |
252b5132 RH |
3385 | |
3386 | elf_elfsections (abfd) = i_shdrp; | |
3387 | ||
12bd6957 | 3388 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3389 | if (need_symtab) |
252b5132 | 3390 | { |
12bd6957 | 3391 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3392 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3393 | { |
12bd6957 AM |
3394 | i_shdrp[elf_symtab_shndx (abfd)] = &t->symtab_shndx_hdr; |
3395 | t->symtab_shndx_hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3396 | } |
12bd6957 AM |
3397 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3398 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3399 | } |
38ce5b11 | 3400 | |
252b5132 RH |
3401 | for (sec = abfd->sections; sec; sec = sec->next) |
3402 | { | |
252b5132 | 3403 | asection *s; |
252b5132 | 3404 | |
91d6fa6a NC |
3405 | d = elf_section_data (sec); |
3406 | ||
252b5132 | 3407 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3408 | if (d->rel.idx != 0) |
3409 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3410 | if (d->rela.idx != 0) | |
3411 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3412 | |
3413 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3414 | ||
3415 | /* sh_link of a reloc section is the section index of the symbol | |
3416 | table. sh_info is the section index of the section to which | |
3417 | the relocation entries apply. */ | |
d4730f92 | 3418 | if (d->rel.idx != 0) |
252b5132 | 3419 | { |
12bd6957 | 3420 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3421 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3422 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3423 | } |
d4730f92 | 3424 | if (d->rela.idx != 0) |
23bc299b | 3425 | { |
12bd6957 | 3426 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3427 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3428 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3429 | } |
252b5132 | 3430 | |
38ce5b11 L |
3431 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3432 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3433 | { | |
3434 | s = elf_linked_to_section (sec); | |
3435 | if (s) | |
38ce5b11 | 3436 | { |
f2876037 | 3437 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3438 | if (link_info != NULL) |
38ce5b11 | 3439 | { |
f2876037 | 3440 | /* Check discarded linkonce section. */ |
dbaa2011 | 3441 | if (discarded_section (s)) |
38ce5b11 | 3442 | { |
ccd2ec6a L |
3443 | asection *kept; |
3444 | (*_bfd_error_handler) | |
3445 | (_("%B: sh_link of section `%A' points to discarded section `%A' of `%B'"), | |
3446 | abfd, d->this_hdr.bfd_section, | |
3447 | s, s->owner); | |
3448 | /* Point to the kept section if it has the same | |
3449 | size as the discarded one. */ | |
c0f00686 | 3450 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3451 | if (kept == NULL) |
185d09ad | 3452 | { |
ccd2ec6a L |
3453 | bfd_set_error (bfd_error_bad_value); |
3454 | return FALSE; | |
185d09ad | 3455 | } |
ccd2ec6a | 3456 | s = kept; |
38ce5b11 | 3457 | } |
e424ecc8 | 3458 | |
ccd2ec6a L |
3459 | s = s->output_section; |
3460 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3461 | } |
f2876037 L |
3462 | else |
3463 | { | |
3464 | /* Handle objcopy. */ | |
3465 | if (s->output_section == NULL) | |
3466 | { | |
3467 | (*_bfd_error_handler) | |
3468 | (_("%B: sh_link of section `%A' points to removed section `%A' of `%B'"), | |
3469 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3470 | bfd_set_error (bfd_error_bad_value); | |
3471 | return FALSE; | |
3472 | } | |
3473 | s = s->output_section; | |
3474 | } | |
ccd2ec6a L |
3475 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3476 | } | |
3477 | else | |
3478 | { | |
3479 | /* PR 290: | |
3480 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3481 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3482 | sh_info fields. Hence we could get the situation | |
08a40648 | 3483 | where s is NULL. */ |
ccd2ec6a L |
3484 | const struct elf_backend_data *bed |
3485 | = get_elf_backend_data (abfd); | |
3486 | if (bed->link_order_error_handler) | |
3487 | bed->link_order_error_handler | |
3488 | (_("%B: warning: sh_link not set for section `%A'"), | |
3489 | abfd, sec); | |
38ce5b11 L |
3490 | } |
3491 | } | |
3492 | ||
252b5132 RH |
3493 | switch (d->this_hdr.sh_type) |
3494 | { | |
3495 | case SHT_REL: | |
3496 | case SHT_RELA: | |
3497 | /* A reloc section which we are treating as a normal BFD | |
3498 | section. sh_link is the section index of the symbol | |
3499 | table. sh_info is the section index of the section to | |
3500 | which the relocation entries apply. We assume that an | |
3501 | allocated reloc section uses the dynamic symbol table. | |
3502 | FIXME: How can we be sure? */ | |
3503 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3504 | if (s != NULL) | |
3505 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3506 | ||
bd53a53a | 3507 | s = get_elf_backend_data (abfd)->get_reloc_section (sec); |
252b5132 | 3508 | if (s != NULL) |
9ef5d938 L |
3509 | { |
3510 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3511 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3512 | } | |
252b5132 RH |
3513 | break; |
3514 | ||
3515 | case SHT_STRTAB: | |
3516 | /* We assume that a section named .stab*str is a stabs | |
3517 | string section. We look for a section with the same name | |
3518 | but without the trailing ``str'', and set its sh_link | |
3519 | field to point to this section. */ | |
0112cd26 | 3520 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3521 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3522 | { | |
3523 | size_t len; | |
3524 | char *alc; | |
3525 | ||
3526 | len = strlen (sec->name); | |
a50b1753 | 3527 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3528 | if (alc == NULL) |
b34976b6 | 3529 | return FALSE; |
d4c88bbb | 3530 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3531 | alc[len - 3] = '\0'; |
3532 | s = bfd_get_section_by_name (abfd, alc); | |
3533 | free (alc); | |
3534 | if (s != NULL) | |
3535 | { | |
3536 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3537 | ||
3538 | /* This is a .stab section. */ | |
0594c12d AM |
3539 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3540 | elf_section_data (s)->this_hdr.sh_entsize | |
3541 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3542 | } |
3543 | } | |
3544 | break; | |
3545 | ||
3546 | case SHT_DYNAMIC: | |
3547 | case SHT_DYNSYM: | |
3548 | case SHT_GNU_verneed: | |
3549 | case SHT_GNU_verdef: | |
3550 | /* sh_link is the section header index of the string table | |
3551 | used for the dynamic entries, or the symbol table, or the | |
3552 | version strings. */ | |
3553 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3554 | if (s != NULL) | |
3555 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3556 | break; | |
3557 | ||
7f1204bb JJ |
3558 | case SHT_GNU_LIBLIST: |
3559 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3560 | list used for the dynamic entries, or the symbol table, or |
3561 | the version strings. */ | |
7f1204bb JJ |
3562 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3563 | ? ".dynstr" : ".gnu.libstr"); | |
3564 | if (s != NULL) | |
3565 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3566 | break; | |
3567 | ||
252b5132 | 3568 | case SHT_HASH: |
fdc90cb4 | 3569 | case SHT_GNU_HASH: |
252b5132 RH |
3570 | case SHT_GNU_versym: |
3571 | /* sh_link is the section header index of the symbol table | |
3572 | this hash table or version table is for. */ | |
3573 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3574 | if (s != NULL) | |
3575 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3576 | break; | |
dbb410c3 AM |
3577 | |
3578 | case SHT_GROUP: | |
12bd6957 | 3579 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3580 | } |
3581 | } | |
3582 | ||
3e19fb8f L |
3583 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
3584 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
3585 | debug section name from .debug_* to .zdebug_* if needed. */ | |
3586 | ||
b34976b6 | 3587 | return TRUE; |
252b5132 RH |
3588 | } |
3589 | ||
5372391b | 3590 | static bfd_boolean |
217aa764 | 3591 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3592 | { |
3593 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3594 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3595 | if (bed->elf_backend_sym_is_global) |
3596 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3597 | |
e47bf690 | 3598 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3599 | || bfd_is_und_section (bfd_get_section (sym)) |
3600 | || bfd_is_com_section (bfd_get_section (sym))); | |
3601 | } | |
3602 | ||
5372391b | 3603 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 3604 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
3605 | |
3606 | static bfd_boolean | |
3607 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
3608 | { | |
c6d8cab4 L |
3609 | elf_symbol_type *type_ptr; |
3610 | ||
3611 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3612 | return FALSE; | |
3613 | ||
3614 | type_ptr = elf_symbol_from (abfd, sym); | |
3615 | return ((type_ptr != NULL | |
3616 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
3617 | && bfd_is_abs_section (sym->section)) | |
3618 | || !(sym->section->owner == abfd | |
0f0a5e58 | 3619 | || (sym->section->output_section->owner == abfd |
2633a79c AM |
3620 | && sym->section->output_offset == 0) |
3621 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
3622 | } |
3623 | ||
2633a79c AM |
3624 | /* Map symbol from it's internal number to the external number, moving |
3625 | all local symbols to be at the head of the list. */ | |
3626 | ||
b34976b6 | 3627 | static bfd_boolean |
12bd6957 | 3628 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 3629 | { |
dc810e39 | 3630 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
3631 | asymbol **syms = bfd_get_outsymbols (abfd); |
3632 | asymbol **sect_syms; | |
dc810e39 AM |
3633 | unsigned int num_locals = 0; |
3634 | unsigned int num_globals = 0; | |
3635 | unsigned int num_locals2 = 0; | |
3636 | unsigned int num_globals2 = 0; | |
252b5132 | 3637 | int max_index = 0; |
dc810e39 | 3638 | unsigned int idx; |
252b5132 RH |
3639 | asection *asect; |
3640 | asymbol **new_syms; | |
252b5132 RH |
3641 | |
3642 | #ifdef DEBUG | |
3643 | fprintf (stderr, "elf_map_symbols\n"); | |
3644 | fflush (stderr); | |
3645 | #endif | |
3646 | ||
252b5132 RH |
3647 | for (asect = abfd->sections; asect; asect = asect->next) |
3648 | { | |
3649 | if (max_index < asect->index) | |
3650 | max_index = asect->index; | |
3651 | } | |
3652 | ||
3653 | max_index++; | |
a50b1753 | 3654 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 3655 | if (sect_syms == NULL) |
b34976b6 | 3656 | return FALSE; |
252b5132 | 3657 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 3658 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 3659 | |
079e9a2f AM |
3660 | /* Init sect_syms entries for any section symbols we have already |
3661 | decided to output. */ | |
252b5132 RH |
3662 | for (idx = 0; idx < symcount; idx++) |
3663 | { | |
dc810e39 | 3664 | asymbol *sym = syms[idx]; |
c044fabd | 3665 | |
252b5132 | 3666 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 3667 | && sym->value == 0 |
2633a79c AM |
3668 | && !ignore_section_sym (abfd, sym) |
3669 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 3670 | { |
5372391b | 3671 | asection *sec = sym->section; |
252b5132 | 3672 | |
5372391b AM |
3673 | if (sec->owner != abfd) |
3674 | sec = sec->output_section; | |
252b5132 | 3675 | |
5372391b | 3676 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
3677 | } |
3678 | } | |
3679 | ||
252b5132 RH |
3680 | /* Classify all of the symbols. */ |
3681 | for (idx = 0; idx < symcount; idx++) | |
3682 | { | |
2633a79c | 3683 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 3684 | num_globals++; |
2633a79c AM |
3685 | else if (!ignore_section_sym (abfd, syms[idx])) |
3686 | num_locals++; | |
252b5132 | 3687 | } |
079e9a2f | 3688 | |
5372391b | 3689 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
3690 | sections will already have a section symbol in outsymbols, but |
3691 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
3692 | at least in that case. */ | |
252b5132 RH |
3693 | for (asect = abfd->sections; asect; asect = asect->next) |
3694 | { | |
079e9a2f | 3695 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3696 | { |
079e9a2f | 3697 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
3698 | num_locals++; |
3699 | else | |
3700 | num_globals++; | |
252b5132 RH |
3701 | } |
3702 | } | |
3703 | ||
3704 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 NC |
3705 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
3706 | sizeof (asymbol *)); | |
dc810e39 | 3707 | |
252b5132 | 3708 | if (new_syms == NULL) |
b34976b6 | 3709 | return FALSE; |
252b5132 RH |
3710 | |
3711 | for (idx = 0; idx < symcount; idx++) | |
3712 | { | |
3713 | asymbol *sym = syms[idx]; | |
dc810e39 | 3714 | unsigned int i; |
252b5132 | 3715 | |
2633a79c AM |
3716 | if (sym_is_global (abfd, sym)) |
3717 | i = num_locals + num_globals2++; | |
3718 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
3719 | i = num_locals2++; |
3720 | else | |
2633a79c | 3721 | continue; |
252b5132 RH |
3722 | new_syms[i] = sym; |
3723 | sym->udata.i = i + 1; | |
3724 | } | |
3725 | for (asect = abfd->sections; asect; asect = asect->next) | |
3726 | { | |
079e9a2f | 3727 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3728 | { |
079e9a2f | 3729 | asymbol *sym = asect->symbol; |
dc810e39 | 3730 | unsigned int i; |
252b5132 | 3731 | |
079e9a2f | 3732 | sect_syms[asect->index] = sym; |
252b5132 RH |
3733 | if (!sym_is_global (abfd, sym)) |
3734 | i = num_locals2++; | |
3735 | else | |
3736 | i = num_locals + num_globals2++; | |
3737 | new_syms[i] = sym; | |
3738 | sym->udata.i = i + 1; | |
3739 | } | |
3740 | } | |
3741 | ||
3742 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
3743 | ||
12bd6957 | 3744 | *pnum_locals = num_locals; |
b34976b6 | 3745 | return TRUE; |
252b5132 RH |
3746 | } |
3747 | ||
3748 | /* Align to the maximum file alignment that could be required for any | |
3749 | ELF data structure. */ | |
3750 | ||
268b6b39 | 3751 | static inline file_ptr |
217aa764 | 3752 | align_file_position (file_ptr off, int align) |
252b5132 RH |
3753 | { |
3754 | return (off + align - 1) & ~(align - 1); | |
3755 | } | |
3756 | ||
3757 | /* Assign a file position to a section, optionally aligning to the | |
3758 | required section alignment. */ | |
3759 | ||
217aa764 AM |
3760 | file_ptr |
3761 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
3762 | file_ptr offset, | |
3763 | bfd_boolean align) | |
252b5132 | 3764 | { |
72de5009 AM |
3765 | if (align && i_shdrp->sh_addralign > 1) |
3766 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
3767 | i_shdrp->sh_offset = offset; |
3768 | if (i_shdrp->bfd_section != NULL) | |
3769 | i_shdrp->bfd_section->filepos = offset; | |
3770 | if (i_shdrp->sh_type != SHT_NOBITS) | |
3771 | offset += i_shdrp->sh_size; | |
3772 | return offset; | |
3773 | } | |
3774 | ||
3775 | /* Compute the file positions we are going to put the sections at, and | |
3776 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
3777 | is not NULL, this is being called by the ELF backend linker. */ | |
3778 | ||
b34976b6 | 3779 | bfd_boolean |
217aa764 AM |
3780 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
3781 | struct bfd_link_info *link_info) | |
252b5132 | 3782 | { |
9c5bfbb7 | 3783 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3784 | struct fake_section_arg fsargs; |
b34976b6 | 3785 | bfd_boolean failed; |
ef10c3ac | 3786 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 3787 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 3788 | bfd_boolean need_symtab; |
252b5132 RH |
3789 | |
3790 | if (abfd->output_has_begun) | |
b34976b6 | 3791 | return TRUE; |
252b5132 RH |
3792 | |
3793 | /* Do any elf backend specific processing first. */ | |
3794 | if (bed->elf_backend_begin_write_processing) | |
3795 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
3796 | ||
3797 | if (! prep_headers (abfd)) | |
b34976b6 | 3798 | return FALSE; |
252b5132 | 3799 | |
e6c51ed4 | 3800 | /* Post process the headers if necessary. */ |
78245035 | 3801 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 3802 | |
d4730f92 BS |
3803 | fsargs.failed = FALSE; |
3804 | fsargs.link_info = link_info; | |
3805 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
3806 | if (fsargs.failed) | |
b34976b6 | 3807 | return FALSE; |
252b5132 | 3808 | |
da9f89d4 | 3809 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 3810 | return FALSE; |
252b5132 RH |
3811 | |
3812 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
3813 | need_symtab = (link_info == NULL |
3814 | && (bfd_get_symcount (abfd) > 0 | |
3815 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3816 | == HAS_RELOC))); | |
3817 | if (need_symtab) | |
252b5132 RH |
3818 | { |
3819 | /* Non-zero if doing a relocatable link. */ | |
3820 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
3821 | ||
3822 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 3823 | return FALSE; |
252b5132 RH |
3824 | } |
3825 | ||
d4730f92 | 3826 | failed = FALSE; |
1126897b | 3827 | if (link_info == NULL) |
dbb410c3 | 3828 | { |
1126897b | 3829 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 3830 | if (failed) |
b34976b6 | 3831 | return FALSE; |
dbb410c3 AM |
3832 | } |
3833 | ||
252b5132 RH |
3834 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
3835 | /* sh_name was set in prep_headers. */ | |
3836 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
3837 | shstrtab_hdr->sh_flags = 0; | |
3838 | shstrtab_hdr->sh_addr = 0; | |
946748d5 | 3839 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
3840 | shstrtab_hdr->sh_entsize = 0; |
3841 | shstrtab_hdr->sh_link = 0; | |
3842 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 3843 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
3844 | shstrtab_hdr->sh_addralign = 1; |
3845 | ||
c84fca4d | 3846 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 3847 | return FALSE; |
252b5132 | 3848 | |
3516e984 | 3849 | if (need_symtab) |
252b5132 RH |
3850 | { |
3851 | file_ptr off; | |
3852 | Elf_Internal_Shdr *hdr; | |
3853 | ||
12bd6957 | 3854 | off = elf_next_file_pos (abfd); |
252b5132 RH |
3855 | |
3856 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
b34976b6 | 3857 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3858 | |
9ad5cbcf AM |
3859 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
3860 | if (hdr->sh_size != 0) | |
b34976b6 | 3861 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf | 3862 | |
252b5132 | 3863 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 3864 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3865 | |
12bd6957 | 3866 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
3867 | |
3868 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 3869 | out. */ |
252b5132 | 3870 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 3871 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 3872 | return FALSE; |
ef10c3ac | 3873 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
3874 | } |
3875 | ||
b34976b6 | 3876 | abfd->output_has_begun = TRUE; |
252b5132 | 3877 | |
b34976b6 | 3878 | return TRUE; |
252b5132 RH |
3879 | } |
3880 | ||
8ded5a0f AM |
3881 | /* Make an initial estimate of the size of the program header. If we |
3882 | get the number wrong here, we'll redo section placement. */ | |
3883 | ||
3884 | static bfd_size_type | |
3885 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
3886 | { | |
3887 | size_t segs; | |
3888 | asection *s; | |
2b05f1b7 | 3889 | const struct elf_backend_data *bed; |
8ded5a0f AM |
3890 | |
3891 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
3892 | and one for data. */ | |
3893 | segs = 2; | |
3894 | ||
3895 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3896 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3897 | { | |
3898 | /* If we have a loadable interpreter section, we need a | |
3899 | PT_INTERP segment. In this case, assume we also need a | |
3900 | PT_PHDR segment, although that may not be true for all | |
3901 | targets. */ | |
3902 | segs += 2; | |
3903 | } | |
3904 | ||
3905 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
3906 | { | |
3907 | /* We need a PT_DYNAMIC segment. */ | |
3908 | ++segs; | |
f210dcff | 3909 | } |
08a40648 | 3910 | |
ceae84aa | 3911 | if (info != NULL && info->relro) |
f210dcff L |
3912 | { |
3913 | /* We need a PT_GNU_RELRO segment. */ | |
3914 | ++segs; | |
8ded5a0f AM |
3915 | } |
3916 | ||
12bd6957 | 3917 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
3918 | { |
3919 | /* We need a PT_GNU_EH_FRAME segment. */ | |
3920 | ++segs; | |
3921 | } | |
3922 | ||
12bd6957 | 3923 | if (elf_stack_flags (abfd)) |
8ded5a0f | 3924 | { |
2b05f1b7 L |
3925 | /* We need a PT_GNU_STACK segment. */ |
3926 | ++segs; | |
3927 | } | |
94b11780 | 3928 | |
2b05f1b7 L |
3929 | for (s = abfd->sections; s != NULL; s = s->next) |
3930 | { | |
8ded5a0f | 3931 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 3932 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
3933 | { |
3934 | /* We need a PT_NOTE segment. */ | |
3935 | ++segs; | |
1c5265b5 JJ |
3936 | /* Try to create just one PT_NOTE segment |
3937 | for all adjacent loadable .note* sections. | |
3938 | gABI requires that within a PT_NOTE segment | |
3939 | (and also inside of each SHT_NOTE section) | |
3940 | each note is padded to a multiple of 4 size, | |
3941 | so we check whether the sections are correctly | |
3942 | aligned. */ | |
3943 | if (s->alignment_power == 2) | |
3944 | while (s->next != NULL | |
3945 | && s->next->alignment_power == 2 | |
3946 | && (s->next->flags & SEC_LOAD) != 0 | |
3947 | && CONST_STRNEQ (s->next->name, ".note")) | |
3948 | s = s->next; | |
8ded5a0f AM |
3949 | } |
3950 | } | |
3951 | ||
3952 | for (s = abfd->sections; s != NULL; s = s->next) | |
3953 | { | |
3954 | if (s->flags & SEC_THREAD_LOCAL) | |
3955 | { | |
3956 | /* We need a PT_TLS segment. */ | |
3957 | ++segs; | |
3958 | break; | |
3959 | } | |
3960 | } | |
3961 | ||
3962 | /* Let the backend count up any program headers it might need. */ | |
2b05f1b7 | 3963 | bed = get_elf_backend_data (abfd); |
8ded5a0f AM |
3964 | if (bed->elf_backend_additional_program_headers) |
3965 | { | |
3966 | int a; | |
3967 | ||
3968 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
3969 | if (a == -1) | |
3970 | abort (); | |
3971 | segs += a; | |
3972 | } | |
3973 | ||
3974 | return segs * bed->s->sizeof_phdr; | |
3975 | } | |
3976 | ||
2ea37f1c NC |
3977 | /* Find the segment that contains the output_section of section. */ |
3978 | ||
3979 | Elf_Internal_Phdr * | |
3980 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
3981 | { | |
3982 | struct elf_segment_map *m; | |
3983 | Elf_Internal_Phdr *p; | |
3984 | ||
12bd6957 | 3985 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
3986 | m != NULL; |
3987 | m = m->next, p++) | |
3988 | { | |
3989 | int i; | |
3990 | ||
3991 | for (i = m->count - 1; i >= 0; i--) | |
3992 | if (m->sections[i] == section) | |
3993 | return p; | |
3994 | } | |
3995 | ||
3996 | return NULL; | |
3997 | } | |
3998 | ||
252b5132 RH |
3999 | /* Create a mapping from a set of sections to a program segment. */ |
4000 | ||
217aa764 AM |
4001 | static struct elf_segment_map * |
4002 | make_mapping (bfd *abfd, | |
4003 | asection **sections, | |
4004 | unsigned int from, | |
4005 | unsigned int to, | |
4006 | bfd_boolean phdr) | |
252b5132 RH |
4007 | { |
4008 | struct elf_segment_map *m; | |
4009 | unsigned int i; | |
4010 | asection **hdrpp; | |
dc810e39 | 4011 | bfd_size_type amt; |
252b5132 | 4012 | |
dc810e39 AM |
4013 | amt = sizeof (struct elf_segment_map); |
4014 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 4015 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4016 | if (m == NULL) |
4017 | return NULL; | |
4018 | m->next = NULL; | |
4019 | m->p_type = PT_LOAD; | |
4020 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4021 | m->sections[i - from] = *hdrpp; | |
4022 | m->count = to - from; | |
4023 | ||
4024 | if (from == 0 && phdr) | |
4025 | { | |
4026 | /* Include the headers in the first PT_LOAD segment. */ | |
4027 | m->includes_filehdr = 1; | |
4028 | m->includes_phdrs = 1; | |
4029 | } | |
4030 | ||
4031 | return m; | |
4032 | } | |
4033 | ||
229fcec5 MM |
4034 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4035 | on failure. */ | |
4036 | ||
4037 | struct elf_segment_map * | |
4038 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4039 | { | |
4040 | struct elf_segment_map *m; | |
4041 | ||
a50b1753 NC |
4042 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
4043 | sizeof (struct elf_segment_map)); | |
229fcec5 MM |
4044 | if (m == NULL) |
4045 | return NULL; | |
4046 | m->next = NULL; | |
4047 | m->p_type = PT_DYNAMIC; | |
4048 | m->count = 1; | |
4049 | m->sections[0] = dynsec; | |
08a40648 | 4050 | |
229fcec5 MM |
4051 | return m; |
4052 | } | |
4053 | ||
8ded5a0f | 4054 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4055 | |
b34976b6 | 4056 | static bfd_boolean |
3dea8fca AM |
4057 | elf_modify_segment_map (bfd *abfd, |
4058 | struct bfd_link_info *info, | |
4059 | bfd_boolean remove_empty_load) | |
252b5132 | 4060 | { |
252e386e | 4061 | struct elf_segment_map **m; |
8ded5a0f | 4062 | const struct elf_backend_data *bed; |
252b5132 | 4063 | |
8ded5a0f AM |
4064 | /* The placement algorithm assumes that non allocated sections are |
4065 | not in PT_LOAD segments. We ensure this here by removing such | |
4066 | sections from the segment map. We also remove excluded | |
252e386e AM |
4067 | sections. Finally, any PT_LOAD segment without sections is |
4068 | removed. */ | |
12bd6957 | 4069 | m = &elf_seg_map (abfd); |
252e386e | 4070 | while (*m) |
8ded5a0f AM |
4071 | { |
4072 | unsigned int i, new_count; | |
252b5132 | 4073 | |
252e386e | 4074 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4075 | { |
252e386e AM |
4076 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4077 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4078 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4079 | { |
252e386e AM |
4080 | (*m)->sections[new_count] = (*m)->sections[i]; |
4081 | new_count++; | |
8ded5a0f AM |
4082 | } |
4083 | } | |
252e386e | 4084 | (*m)->count = new_count; |
252b5132 | 4085 | |
3dea8fca | 4086 | if (remove_empty_load && (*m)->p_type == PT_LOAD && (*m)->count == 0) |
252e386e AM |
4087 | *m = (*m)->next; |
4088 | else | |
4089 | m = &(*m)->next; | |
8ded5a0f | 4090 | } |
252b5132 | 4091 | |
8ded5a0f AM |
4092 | bed = get_elf_backend_data (abfd); |
4093 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4094 | { |
252e386e | 4095 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4096 | return FALSE; |
252b5132 | 4097 | } |
252b5132 | 4098 | |
8ded5a0f AM |
4099 | return TRUE; |
4100 | } | |
252b5132 | 4101 | |
8ded5a0f | 4102 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4103 | |
8ded5a0f AM |
4104 | bfd_boolean |
4105 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4106 | { | |
4107 | unsigned int count; | |
4108 | struct elf_segment_map *m; | |
4109 | asection **sections = NULL; | |
4110 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4111 | bfd_boolean no_user_phdrs; |
252b5132 | 4112 | |
12bd6957 | 4113 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4114 | |
4115 | if (info != NULL) | |
4116 | info->user_phdrs = !no_user_phdrs; | |
4117 | ||
3dea8fca | 4118 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4119 | { |
8ded5a0f AM |
4120 | asection *s; |
4121 | unsigned int i; | |
4122 | struct elf_segment_map *mfirst; | |
4123 | struct elf_segment_map **pm; | |
4124 | asection *last_hdr; | |
4125 | bfd_vma last_size; | |
4126 | unsigned int phdr_index; | |
4127 | bfd_vma maxpagesize; | |
4128 | asection **hdrpp; | |
4129 | bfd_boolean phdr_in_segment = TRUE; | |
4130 | bfd_boolean writable; | |
4131 | int tls_count = 0; | |
4132 | asection *first_tls = NULL; | |
4133 | asection *dynsec, *eh_frame_hdr; | |
4134 | bfd_size_type amt; | |
8d06853e | 4135 | bfd_vma addr_mask, wrap_to = 0; |
252b5132 | 4136 | |
8ded5a0f | 4137 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4138 | |
a50b1753 NC |
4139 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
4140 | sizeof (asection *)); | |
8ded5a0f | 4141 | if (sections == NULL) |
252b5132 | 4142 | goto error_return; |
252b5132 | 4143 | |
8d06853e AM |
4144 | /* Calculate top address, avoiding undefined behaviour of shift |
4145 | left operator when shift count is equal to size of type | |
4146 | being shifted. */ | |
4147 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4148 | addr_mask = (addr_mask << 1) + 1; | |
4149 | ||
8ded5a0f AM |
4150 | i = 0; |
4151 | for (s = abfd->sections; s != NULL; s = s->next) | |
4152 | { | |
4153 | if ((s->flags & SEC_ALLOC) != 0) | |
4154 | { | |
4155 | sections[i] = s; | |
4156 | ++i; | |
8d06853e AM |
4157 | /* A wrapping section potentially clashes with header. */ |
4158 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4159 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4160 | } |
4161 | } | |
4162 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4163 | count = i; | |
252b5132 | 4164 | |
8ded5a0f | 4165 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4166 | |
8ded5a0f | 4167 | /* Build the mapping. */ |
252b5132 | 4168 | |
8ded5a0f AM |
4169 | mfirst = NULL; |
4170 | pm = &mfirst; | |
252b5132 | 4171 | |
8ded5a0f AM |
4172 | /* If we have a .interp section, then create a PT_PHDR segment for |
4173 | the program headers and a PT_INTERP segment for the .interp | |
4174 | section. */ | |
4175 | s = bfd_get_section_by_name (abfd, ".interp"); | |
4176 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
4177 | { | |
4178 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4179 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4180 | if (m == NULL) |
4181 | goto error_return; | |
4182 | m->next = NULL; | |
4183 | m->p_type = PT_PHDR; | |
4184 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
4185 | m->p_flags = PF_R | PF_X; | |
4186 | m->p_flags_valid = 1; | |
4187 | m->includes_phdrs = 1; | |
252b5132 | 4188 | |
8ded5a0f AM |
4189 | *pm = m; |
4190 | pm = &m->next; | |
252b5132 | 4191 | |
8ded5a0f | 4192 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4193 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4194 | if (m == NULL) |
4195 | goto error_return; | |
4196 | m->next = NULL; | |
4197 | m->p_type = PT_INTERP; | |
4198 | m->count = 1; | |
4199 | m->sections[0] = s; | |
4200 | ||
4201 | *pm = m; | |
4202 | pm = &m->next; | |
252b5132 | 4203 | } |
8ded5a0f AM |
4204 | |
4205 | /* Look through the sections. We put sections in the same program | |
4206 | segment when the start of the second section can be placed within | |
4207 | a few bytes of the end of the first section. */ | |
4208 | last_hdr = NULL; | |
4209 | last_size = 0; | |
4210 | phdr_index = 0; | |
4211 | maxpagesize = bed->maxpagesize; | |
063bb025 NC |
4212 | /* PR 17512: file: c8455299. |
4213 | Avoid divide-by-zero errors later on. | |
4214 | FIXME: Should we abort if the maxpagesize is zero ? */ | |
4215 | if (maxpagesize == 0) | |
4216 | maxpagesize = 1; | |
8ded5a0f AM |
4217 | writable = FALSE; |
4218 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
4219 | if (dynsec != NULL | |
4220 | && (dynsec->flags & SEC_LOAD) == 0) | |
4221 | dynsec = NULL; | |
4222 | ||
4223 | /* Deal with -Ttext or something similar such that the first section | |
4224 | is not adjacent to the program headers. This is an | |
4225 | approximation, since at this point we don't know exactly how many | |
4226 | program headers we will need. */ | |
4227 | if (count > 0) | |
252b5132 | 4228 | { |
12bd6957 | 4229 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 4230 | |
62d7a5f6 | 4231 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 4232 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 4233 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 4234 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
4235 | || (sections[0]->lma & addr_mask) < phdr_size |
4236 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
4237 | < phdr_size % maxpagesize) | |
4238 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
8ded5a0f | 4239 | phdr_in_segment = FALSE; |
252b5132 RH |
4240 | } |
4241 | ||
8ded5a0f | 4242 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4243 | { |
8ded5a0f AM |
4244 | asection *hdr; |
4245 | bfd_boolean new_segment; | |
4246 | ||
4247 | hdr = *hdrpp; | |
4248 | ||
4249 | /* See if this section and the last one will fit in the same | |
4250 | segment. */ | |
4251 | ||
4252 | if (last_hdr == NULL) | |
4253 | { | |
4254 | /* If we don't have a segment yet, then we don't need a new | |
4255 | one (we build the last one after this loop). */ | |
4256 | new_segment = FALSE; | |
4257 | } | |
4258 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4259 | { | |
4260 | /* If this section has a different relation between the | |
4261 | virtual address and the load address, then we need a new | |
4262 | segment. */ | |
4263 | new_segment = TRUE; | |
4264 | } | |
b5599592 AM |
4265 | else if (hdr->lma < last_hdr->lma + last_size |
4266 | || last_hdr->lma + last_size < last_hdr->lma) | |
4267 | { | |
4268 | /* If this section has a load address that makes it overlap | |
4269 | the previous section, then we need a new segment. */ | |
4270 | new_segment = TRUE; | |
4271 | } | |
39948a60 NC |
4272 | /* In the next test we have to be careful when last_hdr->lma is close |
4273 | to the end of the address space. If the aligned address wraps | |
4274 | around to the start of the address space, then there are no more | |
4275 | pages left in memory and it is OK to assume that the current | |
4276 | section can be included in the current segment. */ | |
4277 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4278 | > last_hdr->lma) | |
4279 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4ff73856 | 4280 | <= hdr->lma)) |
8ded5a0f AM |
4281 | { |
4282 | /* If putting this section in this segment would force us to | |
4283 | skip a page in the segment, then we need a new segment. */ | |
4284 | new_segment = TRUE; | |
4285 | } | |
4286 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
e5654c0f AM |
4287 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0 |
4288 | && ((abfd->flags & D_PAGED) == 0 | |
4289 | || (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4290 | != (hdr->lma & -maxpagesize)))) | |
8ded5a0f | 4291 | { |
e5654c0f AM |
4292 | /* We don't want to put a loaded section after a |
4293 | nonloaded (ie. bss style) section in the same segment | |
4294 | as that will force the non-loaded section to be loaded. | |
4295 | Consider .tbss sections as loaded for this purpose. | |
4296 | However, like the writable/non-writable case below, | |
4297 | if they are on the same page then they must be put | |
4298 | in the same segment. */ | |
8ded5a0f AM |
4299 | new_segment = TRUE; |
4300 | } | |
4301 | else if ((abfd->flags & D_PAGED) == 0) | |
4302 | { | |
4303 | /* If the file is not demand paged, which means that we | |
4304 | don't require the sections to be correctly aligned in the | |
4305 | file, then there is no other reason for a new segment. */ | |
4306 | new_segment = FALSE; | |
4307 | } | |
4308 | else if (! writable | |
4309 | && (hdr->flags & SEC_READONLY) == 0 | |
8d06853e AM |
4310 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) |
4311 | != (hdr->lma & -maxpagesize))) | |
8ded5a0f AM |
4312 | { |
4313 | /* We don't want to put a writable section in a read only | |
4314 | segment, unless they are on the same page in memory | |
4315 | anyhow. We already know that the last section does not | |
4316 | bring us past the current section on the page, so the | |
4317 | only case in which the new section is not on the same | |
4318 | page as the previous section is when the previous section | |
4319 | ends precisely on a page boundary. */ | |
4320 | new_segment = TRUE; | |
4321 | } | |
4322 | else | |
4323 | { | |
4324 | /* Otherwise, we can use the same segment. */ | |
4325 | new_segment = FALSE; | |
4326 | } | |
4327 | ||
2889e75b | 4328 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4329 | if (last_hdr != NULL |
4330 | && info != NULL | |
4331 | && info->callbacks->override_segment_assignment != NULL) | |
4332 | new_segment | |
4333 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4334 | last_hdr, | |
4335 | new_segment); | |
2889e75b | 4336 | |
8ded5a0f AM |
4337 | if (! new_segment) |
4338 | { | |
4339 | if ((hdr->flags & SEC_READONLY) == 0) | |
4340 | writable = TRUE; | |
4341 | last_hdr = hdr; | |
4342 | /* .tbss sections effectively have zero size. */ | |
4343 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4344 | != SEC_THREAD_LOCAL) | |
4345 | last_size = hdr->size; | |
4346 | else | |
4347 | last_size = 0; | |
4348 | continue; | |
4349 | } | |
4350 | ||
4351 | /* We need a new program segment. We must create a new program | |
4352 | header holding all the sections from phdr_index until hdr. */ | |
4353 | ||
4354 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4355 | if (m == NULL) | |
4356 | goto error_return; | |
4357 | ||
4358 | *pm = m; | |
4359 | pm = &m->next; | |
4360 | ||
252b5132 | 4361 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4362 | writable = TRUE; |
8ded5a0f AM |
4363 | else |
4364 | writable = FALSE; | |
4365 | ||
baaff79e JJ |
4366 | last_hdr = hdr; |
4367 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 4368 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 4369 | last_size = hdr->size; |
baaff79e JJ |
4370 | else |
4371 | last_size = 0; | |
8ded5a0f AM |
4372 | phdr_index = i; |
4373 | phdr_in_segment = FALSE; | |
252b5132 RH |
4374 | } |
4375 | ||
86b2281f AM |
4376 | /* Create a final PT_LOAD program segment, but not if it's just |
4377 | for .tbss. */ | |
4378 | if (last_hdr != NULL | |
4379 | && (i - phdr_index != 1 | |
4380 | || ((last_hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4381 | != SEC_THREAD_LOCAL))) | |
8ded5a0f AM |
4382 | { |
4383 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4384 | if (m == NULL) | |
4385 | goto error_return; | |
252b5132 | 4386 | |
8ded5a0f AM |
4387 | *pm = m; |
4388 | pm = &m->next; | |
4389 | } | |
252b5132 | 4390 | |
8ded5a0f AM |
4391 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4392 | if (dynsec != NULL) | |
4393 | { | |
4394 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4395 | if (m == NULL) | |
4396 | goto error_return; | |
4397 | *pm = m; | |
4398 | pm = &m->next; | |
4399 | } | |
252b5132 | 4400 | |
1c5265b5 JJ |
4401 | /* For each batch of consecutive loadable .note sections, |
4402 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4403 | because if we link together nonloadable .note sections and | |
4404 | loadable .note sections, we will generate two .note sections | |
4405 | in the output file. FIXME: Using names for section types is | |
4406 | bogus anyhow. */ | |
8ded5a0f AM |
4407 | for (s = abfd->sections; s != NULL; s = s->next) |
4408 | { | |
4409 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4410 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4411 | { |
1c5265b5 | 4412 | asection *s2; |
91d6fa6a NC |
4413 | |
4414 | count = 1; | |
8ded5a0f | 4415 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4416 | if (s->alignment_power == 2) |
4417 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4418 | { |
4419 | if (s2->next->alignment_power == 2 | |
4420 | && (s2->next->flags & SEC_LOAD) != 0 | |
4421 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4422 | && align_power (s2->lma + s2->size, 2) |
4423 | == s2->next->lma) | |
55b581a6 JJ |
4424 | count++; |
4425 | else | |
4426 | break; | |
4427 | } | |
1c5265b5 | 4428 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4429 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4430 | if (m == NULL) |
4431 | goto error_return; | |
4432 | m->next = NULL; | |
4433 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4434 | m->count = count; |
4435 | while (count > 1) | |
4436 | { | |
4437 | m->sections[m->count - count--] = s; | |
4438 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4439 | s = s->next; | |
4440 | } | |
4441 | m->sections[m->count - 1] = s; | |
4442 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4443 | *pm = m; |
4444 | pm = &m->next; | |
4445 | } | |
4446 | if (s->flags & SEC_THREAD_LOCAL) | |
4447 | { | |
4448 | if (! tls_count) | |
4449 | first_tls = s; | |
4450 | tls_count++; | |
4451 | } | |
4452 | } | |
252b5132 | 4453 | |
8ded5a0f AM |
4454 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4455 | if (tls_count > 0) | |
4456 | { | |
8ded5a0f AM |
4457 | amt = sizeof (struct elf_segment_map); |
4458 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4459 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4460 | if (m == NULL) |
4461 | goto error_return; | |
4462 | m->next = NULL; | |
4463 | m->p_type = PT_TLS; | |
4464 | m->count = tls_count; | |
4465 | /* Mandated PF_R. */ | |
4466 | m->p_flags = PF_R; | |
4467 | m->p_flags_valid = 1; | |
d923cae0 | 4468 | s = first_tls; |
91d6fa6a | 4469 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 4470 | { |
d923cae0 L |
4471 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
4472 | { | |
4473 | _bfd_error_handler | |
4474 | (_("%B: TLS sections are not adjacent:"), abfd); | |
4475 | s = first_tls; | |
4476 | i = 0; | |
4477 | while (i < (unsigned int) tls_count) | |
4478 | { | |
4479 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
4480 | { | |
4481 | _bfd_error_handler (_(" TLS: %A"), s); | |
4482 | i++; | |
4483 | } | |
4484 | else | |
4485 | _bfd_error_handler (_(" non-TLS: %A"), s); | |
4486 | s = s->next; | |
4487 | } | |
4488 | bfd_set_error (bfd_error_bad_value); | |
4489 | goto error_return; | |
4490 | } | |
4491 | m->sections[i] = s; | |
4492 | s = s->next; | |
8ded5a0f | 4493 | } |
252b5132 | 4494 | |
8ded5a0f AM |
4495 | *pm = m; |
4496 | pm = &m->next; | |
4497 | } | |
252b5132 | 4498 | |
8ded5a0f AM |
4499 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
4500 | segment. */ | |
12bd6957 | 4501 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
4502 | if (eh_frame_hdr != NULL |
4503 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 4504 | { |
dc810e39 | 4505 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4506 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4507 | if (m == NULL) |
4508 | goto error_return; | |
4509 | m->next = NULL; | |
8ded5a0f | 4510 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 4511 | m->count = 1; |
8ded5a0f | 4512 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
4513 | |
4514 | *pm = m; | |
4515 | pm = &m->next; | |
4516 | } | |
13ae64f3 | 4517 | |
12bd6957 | 4518 | if (elf_stack_flags (abfd)) |
13ae64f3 | 4519 | { |
8ded5a0f | 4520 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4521 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4522 | if (m == NULL) |
4523 | goto error_return; | |
4524 | m->next = NULL; | |
2b05f1b7 | 4525 | m->p_type = PT_GNU_STACK; |
12bd6957 | 4526 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 4527 | m->p_align = bed->stack_align; |
8ded5a0f | 4528 | m->p_flags_valid = 1; |
04c3a755 NS |
4529 | m->p_align_valid = m->p_align != 0; |
4530 | if (info->stacksize > 0) | |
4531 | { | |
4532 | m->p_size = info->stacksize; | |
4533 | m->p_size_valid = 1; | |
4534 | } | |
252b5132 | 4535 | |
8ded5a0f AM |
4536 | *pm = m; |
4537 | pm = &m->next; | |
4538 | } | |
65765700 | 4539 | |
ceae84aa | 4540 | if (info != NULL && info->relro) |
8ded5a0f | 4541 | { |
f210dcff L |
4542 | for (m = mfirst; m != NULL; m = m->next) |
4543 | { | |
3832a4d8 AM |
4544 | if (m->p_type == PT_LOAD |
4545 | && m->count != 0 | |
4546 | && m->sections[0]->vma >= info->relro_start | |
4547 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 4548 | { |
3832a4d8 AM |
4549 | i = m->count; |
4550 | while (--i != (unsigned) -1) | |
4551 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4552 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4553 | break; | |
4554 | ||
43a8475c | 4555 | if (i != (unsigned) -1) |
f210dcff L |
4556 | break; |
4557 | } | |
be01b344 | 4558 | } |
f210dcff L |
4559 | |
4560 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
4561 | if (m != NULL) | |
4562 | { | |
4563 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4564 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
4565 | if (m == NULL) |
4566 | goto error_return; | |
4567 | m->next = NULL; | |
4568 | m->p_type = PT_GNU_RELRO; | |
4569 | m->p_flags = PF_R; | |
4570 | m->p_flags_valid = 1; | |
4571 | ||
4572 | *pm = m; | |
4573 | pm = &m->next; | |
4574 | } | |
8ded5a0f | 4575 | } |
9ee5e499 | 4576 | |
8ded5a0f | 4577 | free (sections); |
12bd6957 | 4578 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
4579 | } |
4580 | ||
3dea8fca | 4581 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 4582 | return FALSE; |
8c37241b | 4583 | |
12bd6957 | 4584 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 4585 | ++count; |
12bd6957 | 4586 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 4587 | |
b34976b6 | 4588 | return TRUE; |
252b5132 RH |
4589 | |
4590 | error_return: | |
4591 | if (sections != NULL) | |
4592 | free (sections); | |
b34976b6 | 4593 | return FALSE; |
252b5132 RH |
4594 | } |
4595 | ||
4596 | /* Sort sections by address. */ | |
4597 | ||
4598 | static int | |
217aa764 | 4599 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
4600 | { |
4601 | const asection *sec1 = *(const asection **) arg1; | |
4602 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 4603 | bfd_size_type size1, size2; |
252b5132 RH |
4604 | |
4605 | /* Sort by LMA first, since this is the address used to | |
4606 | place the section into a segment. */ | |
4607 | if (sec1->lma < sec2->lma) | |
4608 | return -1; | |
4609 | else if (sec1->lma > sec2->lma) | |
4610 | return 1; | |
4611 | ||
4612 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
4613 | the same, and this will do nothing. */ | |
4614 | if (sec1->vma < sec2->vma) | |
4615 | return -1; | |
4616 | else if (sec1->vma > sec2->vma) | |
4617 | return 1; | |
4618 | ||
4619 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
4620 | ||
07c6e936 | 4621 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
4622 | |
4623 | if (TOEND (sec1)) | |
4624 | { | |
4625 | if (TOEND (sec2)) | |
00a7cdc5 NC |
4626 | { |
4627 | /* If the indicies are the same, do not return 0 | |
4628 | here, but continue to try the next comparison. */ | |
4629 | if (sec1->target_index - sec2->target_index != 0) | |
4630 | return sec1->target_index - sec2->target_index; | |
4631 | } | |
252b5132 RH |
4632 | else |
4633 | return 1; | |
4634 | } | |
00a7cdc5 | 4635 | else if (TOEND (sec2)) |
252b5132 RH |
4636 | return -1; |
4637 | ||
4638 | #undef TOEND | |
4639 | ||
00a7cdc5 NC |
4640 | /* Sort by size, to put zero sized sections |
4641 | before others at the same address. */ | |
252b5132 | 4642 | |
eea6121a AM |
4643 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
4644 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
4645 | |
4646 | if (size1 < size2) | |
252b5132 | 4647 | return -1; |
eecdbe52 | 4648 | if (size1 > size2) |
252b5132 RH |
4649 | return 1; |
4650 | ||
4651 | return sec1->target_index - sec2->target_index; | |
4652 | } | |
4653 | ||
340b6d91 AC |
4654 | /* Ian Lance Taylor writes: |
4655 | ||
4656 | We shouldn't be using % with a negative signed number. That's just | |
4657 | not good. We have to make sure either that the number is not | |
4658 | negative, or that the number has an unsigned type. When the types | |
4659 | are all the same size they wind up as unsigned. When file_ptr is a | |
4660 | larger signed type, the arithmetic winds up as signed long long, | |
4661 | which is wrong. | |
4662 | ||
4663 | What we're trying to say here is something like ``increase OFF by | |
4664 | the least amount that will cause it to be equal to the VMA modulo | |
4665 | the page size.'' */ | |
4666 | /* In other words, something like: | |
4667 | ||
4668 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
4669 | off_offset = off % bed->maxpagesize; | |
4670 | if (vma_offset < off_offset) | |
4671 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
4672 | else | |
4673 | adjustment = vma_offset - off_offset; | |
08a40648 | 4674 | |
340b6d91 AC |
4675 | which can can be collapsed into the expression below. */ |
4676 | ||
4677 | static file_ptr | |
4678 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
4679 | { | |
dc9155b2 NC |
4680 | /* PR binutils/16199: Handle an alignment of zero. */ |
4681 | if (maxpagesize == 0) | |
4682 | maxpagesize = 1; | |
340b6d91 AC |
4683 | return ((vma - off) % maxpagesize); |
4684 | } | |
4685 | ||
6d33f217 L |
4686 | static void |
4687 | print_segment_map (const struct elf_segment_map *m) | |
4688 | { | |
4689 | unsigned int j; | |
4690 | const char *pt = get_segment_type (m->p_type); | |
4691 | char buf[32]; | |
4692 | ||
4693 | if (pt == NULL) | |
4694 | { | |
4695 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
4696 | sprintf (buf, "LOPROC+%7.7x", | |
4697 | (unsigned int) (m->p_type - PT_LOPROC)); | |
4698 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
4699 | sprintf (buf, "LOOS+%7.7x", | |
4700 | (unsigned int) (m->p_type - PT_LOOS)); | |
4701 | else | |
4702 | snprintf (buf, sizeof (buf), "%8.8x", | |
4703 | (unsigned int) m->p_type); | |
4704 | pt = buf; | |
4705 | } | |
4a97a0e5 | 4706 | fflush (stdout); |
6d33f217 L |
4707 | fprintf (stderr, "%s:", pt); |
4708 | for (j = 0; j < m->count; j++) | |
4709 | fprintf (stderr, " %s", m->sections [j]->name); | |
4710 | putc ('\n',stderr); | |
4a97a0e5 | 4711 | fflush (stderr); |
6d33f217 L |
4712 | } |
4713 | ||
32812159 AM |
4714 | static bfd_boolean |
4715 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
4716 | { | |
4717 | void *buf; | |
4718 | bfd_boolean ret; | |
4719 | ||
4720 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
4721 | return FALSE; | |
4722 | buf = bfd_zmalloc (len); | |
4723 | if (buf == NULL) | |
4724 | return FALSE; | |
4725 | ret = bfd_bwrite (buf, len, abfd) == len; | |
4726 | free (buf); | |
4727 | return ret; | |
4728 | } | |
4729 | ||
252b5132 RH |
4730 | /* Assign file positions to the sections based on the mapping from |
4731 | sections to segments. This function also sets up some fields in | |
f3520d2f | 4732 | the file header. */ |
252b5132 | 4733 | |
b34976b6 | 4734 | static bfd_boolean |
f3520d2f AM |
4735 | assign_file_positions_for_load_sections (bfd *abfd, |
4736 | struct bfd_link_info *link_info) | |
252b5132 RH |
4737 | { |
4738 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 4739 | struct elf_segment_map *m; |
252b5132 | 4740 | Elf_Internal_Phdr *phdrs; |
252b5132 | 4741 | Elf_Internal_Phdr *p; |
02bf8d82 | 4742 | file_ptr off; |
3f570048 | 4743 | bfd_size_type maxpagesize; |
f3520d2f | 4744 | unsigned int alloc; |
0920dee7 | 4745 | unsigned int i, j; |
2b0bc088 | 4746 | bfd_vma header_pad = 0; |
252b5132 | 4747 | |
e36284ab | 4748 | if (link_info == NULL |
ceae84aa | 4749 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 4750 | return FALSE; |
252b5132 | 4751 | |
8ded5a0f | 4752 | alloc = 0; |
12bd6957 | 4753 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
4754 | { |
4755 | ++alloc; | |
4756 | if (m->header_size) | |
4757 | header_pad = m->header_size; | |
4758 | } | |
252b5132 | 4759 | |
82f2dbf7 NC |
4760 | if (alloc) |
4761 | { | |
4762 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
4763 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
4764 | } | |
4765 | else | |
4766 | { | |
4767 | /* PR binutils/12467. */ | |
4768 | elf_elfheader (abfd)->e_phoff = 0; | |
4769 | elf_elfheader (abfd)->e_phentsize = 0; | |
4770 | } | |
d324f6d6 | 4771 | |
8ded5a0f | 4772 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 4773 | |
12bd6957 AM |
4774 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
4775 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 4776 | else |
12bd6957 | 4777 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 4778 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
4779 | |
4780 | if (alloc == 0) | |
f3520d2f | 4781 | { |
12bd6957 | 4782 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 4783 | return TRUE; |
f3520d2f | 4784 | } |
252b5132 | 4785 | |
12bd6957 | 4786 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
4787 | see assign_file_positions_except_relocs, so make sure we have |
4788 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
4789 | The variable alloc contains the computed need, while |
4790 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
4791 | layout. |
4792 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
4793 | where the layout is forced to according to a larger size in the | |
4794 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 4795 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 4796 | == 0); |
a50b1753 NC |
4797 | phdrs = (Elf_Internal_Phdr *) |
4798 | bfd_zalloc2 (abfd, | |
12bd6957 | 4799 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
a50b1753 | 4800 | sizeof (Elf_Internal_Phdr)); |
f3520d2f | 4801 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 4802 | if (phdrs == NULL) |
b34976b6 | 4803 | return FALSE; |
252b5132 | 4804 | |
3f570048 AM |
4805 | maxpagesize = 1; |
4806 | if ((abfd->flags & D_PAGED) != 0) | |
4807 | maxpagesize = bed->maxpagesize; | |
4808 | ||
252b5132 RH |
4809 | off = bed->s->sizeof_ehdr; |
4810 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4811 | if (header_pad < (bfd_vma) off) |
4812 | header_pad = 0; | |
4813 | else | |
4814 | header_pad -= off; | |
4815 | off += header_pad; | |
252b5132 | 4816 | |
12bd6957 | 4817 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 4818 | m != NULL; |
0920dee7 | 4819 | m = m->next, p++, j++) |
252b5132 | 4820 | { |
252b5132 | 4821 | asection **secpp; |
bf988460 AM |
4822 | bfd_vma off_adjust; |
4823 | bfd_boolean no_contents; | |
252b5132 RH |
4824 | |
4825 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 4826 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
4827 | not be done to the PT_NOTE section of a corefile, which may |
4828 | contain several pseudo-sections artificially created by bfd. | |
4829 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
4830 | if (m->count > 1 |
4831 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 4832 | && m->p_type == PT_NOTE)) |
252b5132 RH |
4833 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
4834 | elf_sort_sections); | |
4835 | ||
b301b248 AM |
4836 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
4837 | number of sections with contents contributing to both p_filesz | |
4838 | and p_memsz, followed by a number of sections with no contents | |
4839 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 4840 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 4841 | p->p_type = m->p_type; |
28a7f3e7 | 4842 | p->p_flags = m->p_flags; |
252b5132 | 4843 | |
3f570048 AM |
4844 | if (m->count == 0) |
4845 | p->p_vaddr = 0; | |
4846 | else | |
3271a814 | 4847 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
4848 | |
4849 | if (m->p_paddr_valid) | |
4850 | p->p_paddr = m->p_paddr; | |
4851 | else if (m->count == 0) | |
4852 | p->p_paddr = 0; | |
4853 | else | |
08a40648 | 4854 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
4855 | |
4856 | if (p->p_type == PT_LOAD | |
4857 | && (abfd->flags & D_PAGED) != 0) | |
4858 | { | |
4859 | /* p_align in demand paged PT_LOAD segments effectively stores | |
4860 | the maximum page size. When copying an executable with | |
4861 | objcopy, we set m->p_align from the input file. Use this | |
4862 | value for maxpagesize rather than bed->maxpagesize, which | |
4863 | may be different. Note that we use maxpagesize for PT_TLS | |
4864 | segment alignment later in this function, so we are relying | |
4865 | on at least one PT_LOAD segment appearing before a PT_TLS | |
4866 | segment. */ | |
4867 | if (m->p_align_valid) | |
4868 | maxpagesize = m->p_align; | |
4869 | ||
4870 | p->p_align = maxpagesize; | |
4871 | } | |
3271a814 NS |
4872 | else if (m->p_align_valid) |
4873 | p->p_align = m->p_align; | |
e970b90a DJ |
4874 | else if (m->count == 0) |
4875 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
4876 | else |
4877 | p->p_align = 0; | |
4878 | ||
bf988460 AM |
4879 | no_contents = FALSE; |
4880 | off_adjust = 0; | |
252b5132 | 4881 | if (p->p_type == PT_LOAD |
b301b248 | 4882 | && m->count > 0) |
252b5132 | 4883 | { |
b301b248 | 4884 | bfd_size_type align; |
a49e53ed | 4885 | unsigned int align_power = 0; |
b301b248 | 4886 | |
3271a814 NS |
4887 | if (m->p_align_valid) |
4888 | align = p->p_align; | |
4889 | else | |
252b5132 | 4890 | { |
3271a814 NS |
4891 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4892 | { | |
4893 | unsigned int secalign; | |
08a40648 | 4894 | |
3271a814 NS |
4895 | secalign = bfd_get_section_alignment (abfd, *secpp); |
4896 | if (secalign > align_power) | |
4897 | align_power = secalign; | |
4898 | } | |
4899 | align = (bfd_size_type) 1 << align_power; | |
4900 | if (align < maxpagesize) | |
4901 | align = maxpagesize; | |
b301b248 | 4902 | } |
252b5132 | 4903 | |
02bf8d82 AM |
4904 | for (i = 0; i < m->count; i++) |
4905 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
4906 | /* If we aren't making room for this section, then | |
4907 | it must be SHT_NOBITS regardless of what we've | |
4908 | set via struct bfd_elf_special_section. */ | |
4909 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
4910 | ||
bf988460 | 4911 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
4912 | sections. */ |
4913 | no_contents = TRUE; | |
4914 | for (i = 0; i < m->count; i++) | |
4915 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
4916 | { | |
4917 | no_contents = FALSE; | |
4918 | break; | |
4919 | } | |
bf988460 | 4920 | |
85cfcbfb | 4921 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
bf988460 AM |
4922 | off += off_adjust; |
4923 | if (no_contents) | |
4924 | { | |
4925 | /* We shouldn't need to align the segment on disk since | |
4926 | the segment doesn't need file space, but the gABI | |
4927 | arguably requires the alignment and glibc ld.so | |
4928 | checks it. So to comply with the alignment | |
4929 | requirement but not waste file space, we adjust | |
4930 | p_offset for just this segment. (OFF_ADJUST is | |
4931 | subtracted from OFF later.) This may put p_offset | |
4932 | past the end of file, but that shouldn't matter. */ | |
4933 | } | |
4934 | else | |
4935 | off_adjust = 0; | |
252b5132 | 4936 | } |
b1a6d0b1 NC |
4937 | /* Make sure the .dynamic section is the first section in the |
4938 | PT_DYNAMIC segment. */ | |
4939 | else if (p->p_type == PT_DYNAMIC | |
4940 | && m->count > 1 | |
4941 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
4942 | { | |
4943 | _bfd_error_handler | |
b301b248 AM |
4944 | (_("%B: The first section in the PT_DYNAMIC segment is not the .dynamic section"), |
4945 | abfd); | |
b1a6d0b1 NC |
4946 | bfd_set_error (bfd_error_bad_value); |
4947 | return FALSE; | |
4948 | } | |
3f001e84 JK |
4949 | /* Set the note section type to SHT_NOTE. */ |
4950 | else if (p->p_type == PT_NOTE) | |
4951 | for (i = 0; i < m->count; i++) | |
4952 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 4953 | |
252b5132 RH |
4954 | p->p_offset = 0; |
4955 | p->p_filesz = 0; | |
4956 | p->p_memsz = 0; | |
4957 | ||
4958 | if (m->includes_filehdr) | |
4959 | { | |
bf988460 | 4960 | if (!m->p_flags_valid) |
252b5132 | 4961 | p->p_flags |= PF_R; |
252b5132 RH |
4962 | p->p_filesz = bed->s->sizeof_ehdr; |
4963 | p->p_memsz = bed->s->sizeof_ehdr; | |
4964 | if (m->count > 0) | |
4965 | { | |
252b5132 RH |
4966 | if (p->p_vaddr < (bfd_vma) off) |
4967 | { | |
caf47ea6 | 4968 | (*_bfd_error_handler) |
b301b248 AM |
4969 | (_("%B: Not enough room for program headers, try linking with -N"), |
4970 | abfd); | |
252b5132 | 4971 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4972 | return FALSE; |
252b5132 RH |
4973 | } |
4974 | ||
4975 | p->p_vaddr -= off; | |
bf988460 | 4976 | if (!m->p_paddr_valid) |
252b5132 RH |
4977 | p->p_paddr -= off; |
4978 | } | |
252b5132 RH |
4979 | } |
4980 | ||
4981 | if (m->includes_phdrs) | |
4982 | { | |
bf988460 | 4983 | if (!m->p_flags_valid) |
252b5132 RH |
4984 | p->p_flags |= PF_R; |
4985 | ||
f3520d2f | 4986 | if (!m->includes_filehdr) |
252b5132 RH |
4987 | { |
4988 | p->p_offset = bed->s->sizeof_ehdr; | |
4989 | ||
4990 | if (m->count > 0) | |
4991 | { | |
252b5132 | 4992 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 4993 | if (!m->p_paddr_valid) |
252b5132 RH |
4994 | p->p_paddr -= off - p->p_offset; |
4995 | } | |
252b5132 RH |
4996 | } |
4997 | ||
4998 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
4999 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5000 | if (m->count) |
5001 | { | |
5002 | p->p_filesz += header_pad; | |
5003 | p->p_memsz += header_pad; | |
5004 | } | |
252b5132 RH |
5005 | } |
5006 | ||
5007 | if (p->p_type == PT_LOAD | |
5008 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5009 | { | |
bf988460 | 5010 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5011 | p->p_offset = off; |
252b5132 RH |
5012 | else |
5013 | { | |
5014 | file_ptr adjust; | |
5015 | ||
5016 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5017 | if (!no_contents) |
5018 | p->p_filesz += adjust; | |
252b5132 RH |
5019 | p->p_memsz += adjust; |
5020 | } | |
5021 | } | |
5022 | ||
1ea63fd2 AM |
5023 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5024 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5025 | core files, for sections in PT_NOTE segments. | |
5026 | assign_file_positions_for_non_load_sections will set filepos | |
5027 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5028 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5029 | { | |
5030 | asection *sec; | |
252b5132 | 5031 | bfd_size_type align; |
627b32bc | 5032 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5033 | |
5034 | sec = *secpp; | |
02bf8d82 | 5035 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5036 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5037 | |
88967714 AM |
5038 | if ((p->p_type == PT_LOAD |
5039 | || p->p_type == PT_TLS) | |
5040 | && (this_hdr->sh_type != SHT_NOBITS | |
5041 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5042 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5043 | || p->p_type == PT_TLS)))) | |
252b5132 | 5044 | { |
b5599592 AM |
5045 | bfd_vma p_start = p->p_paddr; |
5046 | bfd_vma p_end = p_start + p->p_memsz; | |
5047 | bfd_vma s_start = sec->lma; | |
5048 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5049 | |
a2d1e028 L |
5050 | if (adjust != 0 |
5051 | && (s_start < p_end | |
5052 | || p_end < p_start)) | |
252b5132 | 5053 | { |
88967714 | 5054 | (*_bfd_error_handler) |
b5599592 AM |
5055 | (_("%B: section %A lma %#lx adjusted to %#lx"), abfd, sec, |
5056 | (unsigned long) s_start, (unsigned long) p_end); | |
88967714 | 5057 | adjust = 0; |
b5599592 | 5058 | sec->lma = p_end; |
1cfb7d1e | 5059 | } |
3ac9b6c9 | 5060 | p->p_memsz += adjust; |
1cfb7d1e | 5061 | |
88967714 AM |
5062 | if (this_hdr->sh_type != SHT_NOBITS) |
5063 | { | |
32812159 AM |
5064 | if (p->p_filesz + adjust < p->p_memsz) |
5065 | { | |
5066 | /* We have a PROGBITS section following NOBITS ones. | |
5067 | Allocate file space for the NOBITS section(s) and | |
5068 | zero it. */ | |
5069 | adjust = p->p_memsz - p->p_filesz; | |
5070 | if (!write_zeros (abfd, off, adjust)) | |
5071 | return FALSE; | |
5072 | } | |
88967714 AM |
5073 | off += adjust; |
5074 | p->p_filesz += adjust; | |
252b5132 | 5075 | } |
252b5132 RH |
5076 | } |
5077 | ||
5078 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5079 | { | |
b301b248 AM |
5080 | /* The section at i == 0 is the one that actually contains |
5081 | everything. */ | |
4a938328 MS |
5082 | if (i == 0) |
5083 | { | |
627b32bc | 5084 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5085 | off += this_hdr->sh_size; |
5086 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5087 | p->p_memsz = 0; |
5088 | p->p_align = 1; | |
252b5132 | 5089 | } |
4a938328 | 5090 | else |
252b5132 | 5091 | { |
b301b248 | 5092 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5093 | sec->filepos = 0; |
eea6121a | 5094 | sec->size = 0; |
b301b248 AM |
5095 | sec->flags = 0; |
5096 | continue; | |
252b5132 | 5097 | } |
252b5132 RH |
5098 | } |
5099 | else | |
5100 | { | |
1e951488 | 5101 | if (p->p_type == PT_LOAD) |
b301b248 | 5102 | { |
1e951488 AM |
5103 | this_hdr->sh_offset = sec->filepos = off; |
5104 | if (this_hdr->sh_type != SHT_NOBITS) | |
5105 | off += this_hdr->sh_size; | |
5106 | } | |
5107 | else if (this_hdr->sh_type == SHT_NOBITS | |
5108 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5109 | && this_hdr->sh_offset == 0) | |
5110 | { | |
5111 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5112 | (See _bfd_elf_map_sections_to_segments "Create a | |
5113 | final PT_LOAD".) Set sh_offset to the value it | |
5114 | would have if we had created a zero p_filesz and | |
5115 | p_memsz PT_LOAD header for the section. This | |
5116 | also makes the PT_TLS header have the same | |
5117 | p_offset value. */ | |
5118 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5119 | off, align); | |
5120 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5121 | } |
252b5132 | 5122 | |
02bf8d82 | 5123 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5124 | { |
6a3cd2b4 | 5125 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5126 | /* A load section without SHF_ALLOC is something like |
5127 | a note section in a PT_NOTE segment. These take | |
5128 | file space but are not loaded into memory. */ | |
5129 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5130 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5131 | } |
6a3cd2b4 | 5132 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5133 | { |
6a3cd2b4 AM |
5134 | if (p->p_type == PT_TLS) |
5135 | p->p_memsz += this_hdr->sh_size; | |
5136 | ||
5137 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5138 | normal segments. */ | |
5139 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5140 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5141 | } |
5142 | ||
b10a8ae0 L |
5143 | if (align > p->p_align |
5144 | && !m->p_align_valid | |
5145 | && (p->p_type != PT_LOAD | |
5146 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5147 | p->p_align = align; |
5148 | } | |
5149 | ||
bf988460 | 5150 | if (!m->p_flags_valid) |
252b5132 RH |
5151 | { |
5152 | p->p_flags |= PF_R; | |
02bf8d82 | 5153 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5154 | p->p_flags |= PF_X; |
02bf8d82 | 5155 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5156 | p->p_flags |= PF_W; |
5157 | } | |
5158 | } | |
43a8475c | 5159 | |
bf988460 | 5160 | off -= off_adjust; |
0920dee7 | 5161 | |
7c928300 AM |
5162 | /* Check that all sections are in a PT_LOAD segment. |
5163 | Don't check funky gdb generated core files. */ | |
5164 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5165 | { |
5166 | bfd_boolean check_vma = TRUE; | |
5167 | ||
5168 | for (i = 1; i < m->count; i++) | |
5169 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5170 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5171 | ->this_hdr), p) != 0 | |
5172 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5173 | ->this_hdr), p) != 0) | |
0920dee7 | 5174 | { |
9a83a553 AM |
5175 | /* Looks like we have overlays packed into the segment. */ |
5176 | check_vma = FALSE; | |
5177 | break; | |
0920dee7 | 5178 | } |
9a83a553 AM |
5179 | |
5180 | for (i = 0; i < m->count; i++) | |
5181 | { | |
5182 | Elf_Internal_Shdr *this_hdr; | |
5183 | asection *sec; | |
5184 | ||
5185 | sec = m->sections[i]; | |
5186 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5187 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5188 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 AM |
5189 | { |
5190 | (*_bfd_error_handler) | |
5191 | (_("%B: section `%A' can't be allocated in segment %d"), | |
5192 | abfd, sec, j); | |
5193 | print_segment_map (m); | |
5194 | } | |
5195 | } | |
5196 | } | |
252b5132 RH |
5197 | } |
5198 | ||
12bd6957 | 5199 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5200 | return TRUE; |
5201 | } | |
5202 | ||
5203 | /* Assign file positions for the other sections. */ | |
5204 | ||
5205 | static bfd_boolean | |
5206 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5207 | struct bfd_link_info *link_info) | |
5208 | { | |
5209 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5210 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5211 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5212 | Elf_Internal_Phdr *phdrs; |
5213 | Elf_Internal_Phdr *p; | |
5214 | struct elf_segment_map *m; | |
62655c7b | 5215 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5216 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5217 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5218 | file_ptr off; | |
f3520d2f AM |
5219 | unsigned int count; |
5220 | ||
5c182d5f | 5221 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5222 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5223 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5224 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5225 | { |
5c182d5f AM |
5226 | Elf_Internal_Shdr *hdr; |
5227 | ||
5228 | hdr = *hdrpp; | |
5229 | if (hdr->bfd_section != NULL | |
252e386e AM |
5230 | && (hdr->bfd_section->filepos != 0 |
5231 | || (hdr->sh_type == SHT_NOBITS | |
5232 | && hdr->contents == NULL))) | |
627b32bc | 5233 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5234 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5235 | { | |
e8d2ba53 AM |
5236 | if (hdr->sh_size != 0) |
5237 | (*_bfd_error_handler) | |
5238 | (_("%B: warning: allocated section `%s' not in segment"), | |
5239 | abfd, | |
5240 | (hdr->bfd_section == NULL | |
5241 | ? "*unknown*" | |
5242 | : hdr->bfd_section->name)); | |
3ba71138 L |
5243 | /* We don't need to page align empty sections. */ |
5244 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5245 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5246 | bed->maxpagesize); | |
5247 | else | |
5248 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5249 | hdr->sh_addralign); | |
5250 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5251 | FALSE); | |
5252 | } | |
5253 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5254 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5255 | || (hdr->bfd_section != NULL |
5256 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5257 | /* Compress DWARF debug sections. */ | |
12bd6957 AM |
5258 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
5259 | || hdr == i_shdrpp[elf_symtab_shndx (abfd)] | |
3e19fb8f L |
5260 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5261 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5262 | hdr->sh_offset = -1; |
5263 | else | |
5264 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5265 | } |
5266 | ||
252b5132 RH |
5267 | /* Now that we have set the section file positions, we can set up |
5268 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5269 | count = 0; |
5270 | filehdr_vaddr = 0; | |
5271 | filehdr_paddr = 0; | |
5272 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5273 | phdrs_paddr = 0; | |
62655c7b | 5274 | hdrs_segment = NULL; |
f3520d2f | 5275 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5276 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5277 | { |
5278 | ++count; | |
5279 | if (p->p_type != PT_LOAD) | |
5280 | continue; | |
5281 | ||
5282 | if (m->includes_filehdr) | |
5283 | { | |
5284 | filehdr_vaddr = p->p_vaddr; | |
5285 | filehdr_paddr = p->p_paddr; | |
5286 | } | |
5287 | if (m->includes_phdrs) | |
5288 | { | |
5289 | phdrs_vaddr = p->p_vaddr; | |
5290 | phdrs_paddr = p->p_paddr; | |
5291 | if (m->includes_filehdr) | |
5292 | { | |
62655c7b | 5293 | hdrs_segment = m; |
f3520d2f AM |
5294 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5295 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5296 | } | |
5297 | } | |
5298 | } | |
5299 | ||
62655c7b RM |
5300 | if (hdrs_segment != NULL && link_info != NULL) |
5301 | { | |
5302 | /* There is a segment that contains both the file headers and the | |
5303 | program headers, so provide a symbol __ehdr_start pointing there. | |
5304 | A program can use this to examine itself robustly. */ | |
5305 | ||
5306 | struct elf_link_hash_entry *hash | |
5307 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5308 | FALSE, FALSE, TRUE); | |
5309 | /* If the symbol was referenced and not defined, define it. */ | |
5310 | if (hash != NULL | |
5311 | && (hash->root.type == bfd_link_hash_new | |
5312 | || hash->root.type == bfd_link_hash_undefined | |
5313 | || hash->root.type == bfd_link_hash_undefweak | |
5314 | || hash->root.type == bfd_link_hash_common)) | |
5315 | { | |
5316 | asection *s = NULL; | |
5317 | if (hdrs_segment->count != 0) | |
5318 | /* The segment contains sections, so use the first one. */ | |
5319 | s = hdrs_segment->sections[0]; | |
5320 | else | |
5321 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 5322 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
5323 | if (m->count != 0) |
5324 | { | |
5325 | s = m->sections[0]; | |
5326 | break; | |
5327 | } | |
5328 | ||
5329 | if (s != NULL) | |
5330 | { | |
5331 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5332 | hash->root.u.def.section = s; | |
5333 | } | |
5334 | else | |
5335 | { | |
5336 | hash->root.u.def.value = filehdr_vaddr; | |
5337 | hash->root.u.def.section = bfd_abs_section_ptr; | |
5338 | } | |
5339 | ||
5340 | hash->root.type = bfd_link_hash_defined; | |
5341 | hash->def_regular = 1; | |
5342 | hash->non_elf = 0; | |
5343 | } | |
5344 | } | |
5345 | ||
12bd6957 | 5346 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 5347 | { |
129af99f | 5348 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 5349 | { |
b84a33b5 | 5350 | const Elf_Internal_Phdr *lp; |
3146fac4 | 5351 | struct elf_segment_map *lm; |
1ea63fd2 | 5352 | |
129af99f | 5353 | if (link_info != NULL) |
8c37241b | 5354 | { |
129af99f AS |
5355 | /* During linking the range of the RELRO segment is passed |
5356 | in link_info. */ | |
12bd6957 | 5357 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
5358 | lm != NULL; |
5359 | lm = lm->next, lp++) | |
8c37241b JJ |
5360 | { |
5361 | if (lp->p_type == PT_LOAD | |
b84a33b5 | 5362 | && lp->p_vaddr < link_info->relro_end |
3146fac4 AM |
5363 | && lm->count != 0 |
5364 | && lm->sections[0]->vma >= link_info->relro_start) | |
8c37241b JJ |
5365 | break; |
5366 | } | |
8981c88a | 5367 | |
3146fac4 | 5368 | BFD_ASSERT (lm != NULL); |
8c37241b | 5369 | } |
129af99f AS |
5370 | else |
5371 | { | |
5372 | /* Otherwise we are copying an executable or shared | |
b84a33b5 | 5373 | library, but we need to use the same linker logic. */ |
129af99f AS |
5374 | for (lp = phdrs; lp < phdrs + count; ++lp) |
5375 | { | |
5376 | if (lp->p_type == PT_LOAD | |
5377 | && lp->p_paddr == p->p_paddr) | |
5378 | break; | |
5379 | } | |
b84a33b5 AM |
5380 | } |
5381 | ||
5382 | if (lp < phdrs + count) | |
5383 | { | |
5384 | p->p_vaddr = lp->p_vaddr; | |
5385 | p->p_paddr = lp->p_paddr; | |
5386 | p->p_offset = lp->p_offset; | |
5387 | if (link_info != NULL) | |
5388 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
5389 | else if (m->p_size_valid) | |
5390 | p->p_filesz = m->p_size; | |
129af99f AS |
5391 | else |
5392 | abort (); | |
b84a33b5 | 5393 | p->p_memsz = p->p_filesz; |
f3944f72 L |
5394 | /* Preserve the alignment and flags if they are valid. The |
5395 | gold linker generates RW/4 for the PT_GNU_RELRO section. | |
5396 | It is better for objcopy/strip to honor these attributes | |
5397 | otherwise gdb will choke when using separate debug files. | |
5398 | */ | |
5399 | if (!m->p_align_valid) | |
5400 | p->p_align = 1; | |
5401 | if (!m->p_flags_valid) | |
5402 | p->p_flags = (lp->p_flags & ~PF_W); | |
129af99f | 5403 | } |
9433b9b1 | 5404 | else |
b84a33b5 AM |
5405 | { |
5406 | memset (p, 0, sizeof *p); | |
5407 | p->p_type = PT_NULL; | |
5408 | } | |
129af99f | 5409 | } |
04c3a755 NS |
5410 | else if (p->p_type == PT_GNU_STACK) |
5411 | { | |
5412 | if (m->p_size_valid) | |
5413 | p->p_memsz = m->p_size; | |
5414 | } | |
129af99f AS |
5415 | else if (m->count != 0) |
5416 | { | |
e06efbf1 | 5417 | unsigned int i; |
129af99f AS |
5418 | if (p->p_type != PT_LOAD |
5419 | && (p->p_type != PT_NOTE | |
5420 | || bfd_get_format (abfd) != bfd_core)) | |
5421 | { | |
c86934ce NC |
5422 | if (m->includes_filehdr || m->includes_phdrs) |
5423 | { | |
b1fa9dd6 | 5424 | /* PR 17512: file: 2195325e. */ |
c86934ce NC |
5425 | (*_bfd_error_handler) |
5426 | (_("%B: warning: non-load segment includes file header and/or program header"), | |
5427 | abfd); | |
5428 | return FALSE; | |
5429 | } | |
129af99f | 5430 | |
86b2281f | 5431 | p->p_filesz = 0; |
129af99f | 5432 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
5433 | for (i = m->count; i-- != 0;) |
5434 | { | |
5435 | asection *sect = m->sections[i]; | |
5436 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
5437 | if (hdr->sh_type != SHT_NOBITS) | |
5438 | { | |
5439 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
5440 | + hdr->sh_size); | |
5441 | break; | |
5442 | } | |
5443 | } | |
129af99f AS |
5444 | } |
5445 | } | |
5446 | else if (m->includes_filehdr) | |
5447 | { | |
5448 | p->p_vaddr = filehdr_vaddr; | |
5449 | if (! m->p_paddr_valid) | |
5450 | p->p_paddr = filehdr_paddr; | |
5451 | } | |
5452 | else if (m->includes_phdrs) | |
5453 | { | |
5454 | p->p_vaddr = phdrs_vaddr; | |
5455 | if (! m->p_paddr_valid) | |
5456 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
5457 | } |
5458 | } | |
5459 | ||
12bd6957 | 5460 | elf_next_file_pos (abfd) = off; |
252b5132 | 5461 | |
b34976b6 | 5462 | return TRUE; |
252b5132 RH |
5463 | } |
5464 | ||
252b5132 RH |
5465 | /* Work out the file positions of all the sections. This is called by |
5466 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
5467 | VMAs must be known before this is called. | |
5468 | ||
e0638f70 AM |
5469 | Reloc sections come in two flavours: Those processed specially as |
5470 | "side-channel" data attached to a section to which they apply, and | |
5471 | those that bfd doesn't process as relocations. The latter sort are | |
5472 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
5473 | consider the former sort here, unless they form part of the loadable | |
5474 | image. Reloc sections not assigned here will be handled later by | |
5475 | assign_file_positions_for_relocs. | |
252b5132 RH |
5476 | |
5477 | We also don't set the positions of the .symtab and .strtab here. */ | |
5478 | ||
b34976b6 | 5479 | static bfd_boolean |
c84fca4d AO |
5480 | assign_file_positions_except_relocs (bfd *abfd, |
5481 | struct bfd_link_info *link_info) | |
252b5132 | 5482 | { |
5c182d5f AM |
5483 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
5484 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 5485 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5486 | |
5487 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
5488 | && bfd_get_format (abfd) != bfd_core) | |
5489 | { | |
5c182d5f AM |
5490 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
5491 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
5492 | Elf_Internal_Shdr **hdrpp; |
5493 | unsigned int i; | |
a485e98e | 5494 | file_ptr off; |
252b5132 RH |
5495 | |
5496 | /* Start after the ELF header. */ | |
5497 | off = i_ehdrp->e_ehsize; | |
5498 | ||
5499 | /* We are not creating an executable, which means that we are | |
5500 | not creating a program header, and that the actual order of | |
5501 | the sections in the file is unimportant. */ | |
9ad5cbcf | 5502 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
5503 | { |
5504 | Elf_Internal_Shdr *hdr; | |
5505 | ||
5506 | hdr = *hdrpp; | |
e0638f70 AM |
5507 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
5508 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5509 | || (hdr->bfd_section != NULL |
5510 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5511 | /* Compress DWARF debug sections. */ | |
12bd6957 AM |
5512 | || i == elf_onesymtab (abfd) |
5513 | || i == elf_symtab_shndx (abfd) | |
3e19fb8f L |
5514 | || i == elf_strtab_sec (abfd) |
5515 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
5516 | { |
5517 | hdr->sh_offset = -1; | |
252b5132 | 5518 | } |
9ad5cbcf | 5519 | else |
b34976b6 | 5520 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 5521 | } |
a485e98e AM |
5522 | |
5523 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
5524 | } |
5525 | else | |
5526 | { | |
f3520d2f AM |
5527 | unsigned int alloc; |
5528 | ||
252b5132 | 5529 | /* Assign file positions for the loaded sections based on the |
08a40648 | 5530 | assignment of sections to segments. */ |
f3520d2f AM |
5531 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
5532 | return FALSE; | |
5533 | ||
5534 | /* And for non-load sections. */ | |
5535 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
5536 | return FALSE; | |
5537 | ||
e36284ab AM |
5538 | if (bed->elf_backend_modify_program_headers != NULL) |
5539 | { | |
5540 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
5541 | return FALSE; | |
5542 | } | |
5543 | ||
58e7ebac L |
5544 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
5545 | if (link_info != NULL | |
5546 | && link_info->executable | |
5547 | && link_info->shared) | |
5548 | { | |
5549 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
5550 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
5551 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
5552 | ||
5553 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
5554 | bfd_vma p_vaddr = (bfd_vma) -1; | |
5555 | for (; segment < end_segment; segment++) | |
5556 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
5557 | p_vaddr = segment->p_vaddr; | |
5558 | ||
5559 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
5560 | segments is non-zero. */ | |
5561 | if (p_vaddr) | |
5562 | i_ehdrp->e_type = ET_EXEC; | |
5563 | } | |
5564 | ||
f3520d2f | 5565 | /* Write out the program headers. */ |
12bd6957 | 5566 | alloc = elf_program_header_size (abfd) / bed->s->sizeof_phdr; |
f3520d2f AM |
5567 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
5568 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) | |
b34976b6 | 5569 | return FALSE; |
252b5132 RH |
5570 | } |
5571 | ||
b34976b6 | 5572 | return TRUE; |
252b5132 RH |
5573 | } |
5574 | ||
b34976b6 | 5575 | static bfd_boolean |
217aa764 | 5576 | prep_headers (bfd *abfd) |
252b5132 | 5577 | { |
3d540e93 | 5578 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 5579 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 5580 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5581 | |
5582 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5583 | |
2b0f7ef9 | 5584 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 5585 | if (shstrtab == NULL) |
b34976b6 | 5586 | return FALSE; |
252b5132 RH |
5587 | |
5588 | elf_shstrtab (abfd) = shstrtab; | |
5589 | ||
5590 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
5591 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
5592 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
5593 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
5594 | ||
5595 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
5596 | i_ehdrp->e_ident[EI_DATA] = | |
5597 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
5598 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
5599 | ||
252b5132 RH |
5600 | if ((abfd->flags & DYNAMIC) != 0) |
5601 | i_ehdrp->e_type = ET_DYN; | |
5602 | else if ((abfd->flags & EXEC_P) != 0) | |
5603 | i_ehdrp->e_type = ET_EXEC; | |
5604 | else if (bfd_get_format (abfd) == bfd_core) | |
5605 | i_ehdrp->e_type = ET_CORE; | |
5606 | else | |
5607 | i_ehdrp->e_type = ET_REL; | |
5608 | ||
5609 | switch (bfd_get_arch (abfd)) | |
5610 | { | |
5611 | case bfd_arch_unknown: | |
5612 | i_ehdrp->e_machine = EM_NONE; | |
5613 | break; | |
aa4f99bb AO |
5614 | |
5615 | /* There used to be a long list of cases here, each one setting | |
5616 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
5617 | in the corresponding bfd definition. To avoid duplication, | |
5618 | the switch was removed. Machines that need special handling | |
5619 | can generally do it in elf_backend_final_write_processing(), | |
5620 | unless they need the information earlier than the final write. | |
5621 | Such need can generally be supplied by replacing the tests for | |
5622 | e_machine with the conditions used to determine it. */ | |
252b5132 | 5623 | default: |
9c5bfbb7 AM |
5624 | i_ehdrp->e_machine = bed->elf_machine_code; |
5625 | } | |
aa4f99bb | 5626 | |
252b5132 RH |
5627 | i_ehdrp->e_version = bed->s->ev_current; |
5628 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
5629 | ||
c044fabd | 5630 | /* No program header, for now. */ |
252b5132 RH |
5631 | i_ehdrp->e_phoff = 0; |
5632 | i_ehdrp->e_phentsize = 0; | |
5633 | i_ehdrp->e_phnum = 0; | |
5634 | ||
c044fabd | 5635 | /* Each bfd section is section header entry. */ |
252b5132 RH |
5636 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
5637 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
5638 | ||
c044fabd | 5639 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 5640 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
5641 | /* It all happens later. */ |
5642 | ; | |
252b5132 RH |
5643 | else |
5644 | { | |
5645 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
5646 | i_ehdrp->e_phoff = 0; |
5647 | } | |
5648 | ||
5649 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 5650 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 5651 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 5652 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 5653 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 5654 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 5655 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 5656 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 5657 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 5658 | return FALSE; |
252b5132 | 5659 | |
b34976b6 | 5660 | return TRUE; |
252b5132 RH |
5661 | } |
5662 | ||
5663 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 5664 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 5665 | |
0ce398f1 L |
5666 | static bfd_boolean |
5667 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
5668 | { |
5669 | file_ptr off; | |
e06efbf1 | 5670 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 5671 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
5672 | Elf_Internal_Ehdr *i_ehdrp; |
5673 | const struct elf_backend_data *bed; | |
252b5132 | 5674 | |
12bd6957 | 5675 | off = elf_next_file_pos (abfd); |
252b5132 | 5676 | |
e06efbf1 L |
5677 | shdrpp = elf_elfsections (abfd); |
5678 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
5679 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 5680 | { |
252b5132 | 5681 | shdrp = *shdrpp; |
0ce398f1 L |
5682 | if (shdrp->sh_offset == -1) |
5683 | { | |
3e19fb8f | 5684 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
5685 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
5686 | || shdrp->sh_type == SHT_RELA); | |
5687 | if (is_rel | |
3e19fb8f | 5688 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
5689 | { |
5690 | if (!is_rel) | |
5691 | { | |
3e19fb8f L |
5692 | const char *name = sec->name; |
5693 | struct bfd_elf_section_data *d; | |
5694 | ||
0ce398f1 | 5695 | /* Compress DWARF debug sections. */ |
3e19fb8f | 5696 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
5697 | shdrp->contents)) |
5698 | return FALSE; | |
3e19fb8f L |
5699 | |
5700 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
5701 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
5702 | { | |
5703 | /* If section is compressed with zlib-gnu, convert | |
5704 | section name from .debug_* to .zdebug_*. */ | |
5705 | char *new_name | |
5706 | = convert_debug_to_zdebug (abfd, name); | |
5707 | if (new_name == NULL) | |
5708 | return FALSE; | |
5709 | name = new_name; | |
5710 | } | |
5711 | /* Add setion name to section name section. */ | |
5712 | if (shdrp->sh_name != (unsigned int) -1) | |
5713 | abort (); | |
5714 | shdrp->sh_name | |
5715 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
5716 | name, FALSE); | |
5717 | d = elf_section_data (sec); | |
5718 | ||
5719 | /* Add reloc setion name to section name section. */ | |
5720 | if (d->rel.hdr | |
5721 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
5722 | d->rel.hdr, | |
5723 | name, FALSE)) | |
5724 | return FALSE; | |
5725 | if (d->rela.hdr | |
5726 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
5727 | d->rela.hdr, | |
91cb26da | 5728 | name, TRUE)) |
3e19fb8f L |
5729 | return FALSE; |
5730 | ||
0ce398f1 | 5731 | /* Update section size and contents. */ |
3e19fb8f L |
5732 | shdrp->sh_size = sec->size; |
5733 | shdrp->contents = sec->contents; | |
0ce398f1 L |
5734 | shdrp->bfd_section->contents = NULL; |
5735 | } | |
5736 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
5737 | off, | |
5738 | TRUE); | |
5739 | } | |
5740 | } | |
252b5132 RH |
5741 | } |
5742 | ||
3e19fb8f L |
5743 | /* Place section name section after DWARF debug sections have been |
5744 | compressed. */ | |
5745 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
5746 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
5747 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
5748 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
5749 | ||
5750 | /* Place the section headers. */ | |
a485e98e AM |
5751 | i_ehdrp = elf_elfheader (abfd); |
5752 | bed = get_elf_backend_data (abfd); | |
5753 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
5754 | i_ehdrp->e_shoff = off; | |
5755 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 5756 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
5757 | |
5758 | return TRUE; | |
252b5132 RH |
5759 | } |
5760 | ||
b34976b6 | 5761 | bfd_boolean |
217aa764 | 5762 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 5763 | { |
9c5bfbb7 | 5764 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5765 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 5766 | bfd_boolean failed; |
9ad5cbcf | 5767 | unsigned int count, num_sec; |
30e8ee25 | 5768 | struct elf_obj_tdata *t; |
252b5132 RH |
5769 | |
5770 | if (! abfd->output_has_begun | |
217aa764 | 5771 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 5772 | return FALSE; |
252b5132 RH |
5773 | |
5774 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 5775 | |
b34976b6 | 5776 | failed = FALSE; |
252b5132 RH |
5777 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
5778 | if (failed) | |
b34976b6 | 5779 | return FALSE; |
252b5132 | 5780 | |
0ce398f1 L |
5781 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
5782 | return FALSE; | |
252b5132 | 5783 | |
c044fabd | 5784 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
5785 | num_sec = elf_numsections (abfd); |
5786 | for (count = 1; count < num_sec; count++) | |
252b5132 | 5787 | { |
3e19fb8f L |
5788 | i_shdrp[count]->sh_name |
5789 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
5790 | i_shdrp[count]->sh_name); | |
252b5132 RH |
5791 | if (bed->elf_backend_section_processing) |
5792 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
5793 | if (i_shdrp[count]->contents) | |
5794 | { | |
dc810e39 AM |
5795 | bfd_size_type amt = i_shdrp[count]->sh_size; |
5796 | ||
252b5132 | 5797 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 5798 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 5799 | return FALSE; |
252b5132 RH |
5800 | } |
5801 | } | |
5802 | ||
5803 | /* Write out the section header names. */ | |
30e8ee25 | 5804 | t = elf_tdata (abfd); |
26ae6d5e | 5805 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 5806 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 5807 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 5808 | return FALSE; |
252b5132 RH |
5809 | |
5810 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 5811 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 5812 | |
ff59fc36 RM |
5813 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
5814 | return FALSE; | |
5815 | ||
5816 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
5817 | if (t->o->build_id.after_write_object_contents != NULL) |
5818 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
5819 | |
5820 | return TRUE; | |
252b5132 RH |
5821 | } |
5822 | ||
b34976b6 | 5823 | bfd_boolean |
217aa764 | 5824 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 5825 | { |
c044fabd | 5826 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
5827 | return _bfd_elf_write_object_contents (abfd); |
5828 | } | |
c044fabd KH |
5829 | |
5830 | /* Given a section, search the header to find them. */ | |
5831 | ||
cb33740c | 5832 | unsigned int |
198beae2 | 5833 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 5834 | { |
9c5bfbb7 | 5835 | const struct elf_backend_data *bed; |
91d6fa6a | 5836 | unsigned int sec_index; |
252b5132 | 5837 | |
9ad5cbcf AM |
5838 | if (elf_section_data (asect) != NULL |
5839 | && elf_section_data (asect)->this_idx != 0) | |
5840 | return elf_section_data (asect)->this_idx; | |
5841 | ||
5842 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 5843 | sec_index = SHN_ABS; |
af746e92 | 5844 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 5845 | sec_index = SHN_COMMON; |
af746e92 | 5846 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 5847 | sec_index = SHN_UNDEF; |
af746e92 | 5848 | else |
91d6fa6a | 5849 | sec_index = SHN_BAD; |
252b5132 | 5850 | |
af746e92 | 5851 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
5852 | if (bed->elf_backend_section_from_bfd_section) |
5853 | { | |
91d6fa6a | 5854 | int retval = sec_index; |
9ad5cbcf | 5855 | |
af746e92 AM |
5856 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
5857 | return retval; | |
252b5132 RH |
5858 | } |
5859 | ||
91d6fa6a | 5860 | if (sec_index == SHN_BAD) |
af746e92 | 5861 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 5862 | |
91d6fa6a | 5863 | return sec_index; |
252b5132 RH |
5864 | } |
5865 | ||
5866 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
5867 | on error. */ | |
5868 | ||
5869 | int | |
217aa764 | 5870 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
5871 | { |
5872 | asymbol *asym_ptr = *asym_ptr_ptr; | |
5873 | int idx; | |
5874 | flagword flags = asym_ptr->flags; | |
5875 | ||
5876 | /* When gas creates relocations against local labels, it creates its | |
5877 | own symbol for the section, but does put the symbol into the | |
5878 | symbol chain, so udata is 0. When the linker is generating | |
5879 | relocatable output, this section symbol may be for one of the | |
5880 | input sections rather than the output section. */ | |
5881 | if (asym_ptr->udata.i == 0 | |
5882 | && (flags & BSF_SECTION_SYM) | |
5883 | && asym_ptr->section) | |
5884 | { | |
5372391b | 5885 | asection *sec; |
252b5132 RH |
5886 | int indx; |
5887 | ||
5372391b AM |
5888 | sec = asym_ptr->section; |
5889 | if (sec->owner != abfd && sec->output_section != NULL) | |
5890 | sec = sec->output_section; | |
5891 | if (sec->owner == abfd | |
5892 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 5893 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
5894 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
5895 | } | |
5896 | ||
5897 | idx = asym_ptr->udata.i; | |
5898 | ||
5899 | if (idx == 0) | |
5900 | { | |
5901 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 5902 | which is used in a relocation entry. */ |
252b5132 | 5903 | (*_bfd_error_handler) |
d003868e AM |
5904 | (_("%B: symbol `%s' required but not present"), |
5905 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
5906 | bfd_set_error (bfd_error_no_symbols); |
5907 | return -1; | |
5908 | } | |
5909 | ||
5910 | #if DEBUG & 4 | |
5911 | { | |
5912 | fprintf (stderr, | |
9ccb8af9 AM |
5913 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx\n", |
5914 | (long) asym_ptr, asym_ptr->name, idx, (long) flags); | |
252b5132 RH |
5915 | fflush (stderr); |
5916 | } | |
5917 | #endif | |
5918 | ||
5919 | return idx; | |
5920 | } | |
5921 | ||
84d1d650 | 5922 | /* Rewrite program header information. */ |
252b5132 | 5923 | |
b34976b6 | 5924 | static bfd_boolean |
84d1d650 | 5925 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 5926 | { |
b34976b6 AM |
5927 | Elf_Internal_Ehdr *iehdr; |
5928 | struct elf_segment_map *map; | |
5929 | struct elf_segment_map *map_first; | |
5930 | struct elf_segment_map **pointer_to_map; | |
5931 | Elf_Internal_Phdr *segment; | |
5932 | asection *section; | |
5933 | unsigned int i; | |
5934 | unsigned int num_segments; | |
5935 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 5936 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
5937 | bfd_vma maxpagesize; |
5938 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
5939 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 5940 | const struct elf_backend_data *bed; |
bc67d8a6 | 5941 | |
caf47ea6 | 5942 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
5943 | iehdr = elf_elfheader (ibfd); |
5944 | ||
bc67d8a6 | 5945 | map_first = NULL; |
c044fabd | 5946 | pointer_to_map = &map_first; |
252b5132 RH |
5947 | |
5948 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
5949 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
5950 | ||
5951 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
5952 | #define SEGMENT_END(segment, start) \ |
5953 | (start + (segment->p_memsz > segment->p_filesz \ | |
5954 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 5955 | |
eecdbe52 JJ |
5956 | #define SECTION_SIZE(section, segment) \ |
5957 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
5958 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 5959 | ? section->size : 0) |
eecdbe52 | 5960 | |
b34976b6 | 5961 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5962 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
5963 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
5964 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 5965 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5966 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 5967 | |
b34976b6 | 5968 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5969 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
5970 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
5971 | (section->lma >= base \ | |
eecdbe52 | 5972 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5973 | <= SEGMENT_END (segment, base))) |
252b5132 | 5974 | |
0efc80c8 L |
5975 | /* Handle PT_NOTE segment. */ |
5976 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 5977 | (p->p_type == PT_NOTE \ |
0efc80c8 | 5978 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 5979 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5980 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5981 | <= p->p_offset + p->p_filesz)) |
252b5132 | 5982 | |
0efc80c8 L |
5983 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
5984 | etc. */ | |
5985 | #define IS_COREFILE_NOTE(p, s) \ | |
5986 | (IS_NOTE (p, s) \ | |
5987 | && bfd_get_format (ibfd) == bfd_core \ | |
5988 | && s->vma == 0 \ | |
5989 | && s->lma == 0) | |
5990 | ||
252b5132 RH |
5991 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
5992 | linker, which generates a PT_INTERP section with p_vaddr and | |
5993 | p_memsz set to 0. */ | |
aecc8f8a AM |
5994 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
5995 | (p->p_vaddr == 0 \ | |
5996 | && p->p_paddr == 0 \ | |
5997 | && p->p_memsz == 0 \ | |
5998 | && p->p_filesz > 0 \ | |
5999 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6000 | && s->size > 0 \ |
aecc8f8a | 6001 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6002 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6003 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6004 | |
bc67d8a6 NC |
6005 | /* Decide if the given section should be included in the given segment. |
6006 | A section will be included if: | |
f5ffc919 | 6007 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6008 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6009 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6010 | segment. |
bc67d8a6 | 6011 | 3. There is an output section associated with it, |
eecdbe52 | 6012 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6013 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6014 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6015 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6016 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6017 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6018 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6019 | ((((segment->p_paddr \ |
6020 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6021 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6022 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6023 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6024 | && segment->p_type != PT_GNU_STACK \ |
6025 | && (segment->p_type != PT_TLS \ | |
6026 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6027 | && (segment->p_type == PT_LOAD \ | |
6028 | || segment->p_type == PT_TLS \ | |
6029 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6030 | && (segment->p_type != PT_DYNAMIC \ | |
6031 | || SECTION_SIZE (section, segment) > 0 \ | |
6032 | || (segment->p_paddr \ | |
6033 | ? segment->p_paddr != section->lma \ | |
6034 | : segment->p_vaddr != section->vma) \ | |
6035 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6036 | == 0)) \ | |
0067a569 | 6037 | && !section->segment_mark) |
bc67d8a6 | 6038 | |
9f17e2a6 L |
6039 | /* If the output section of a section in the input segment is NULL, |
6040 | it is removed from the corresponding output segment. */ | |
6041 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6042 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6043 | && section->output_section != NULL) | |
6044 | ||
b34976b6 | 6045 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6046 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6047 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6048 | ||
6049 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6050 | their VMA address ranges and their LMA address ranges overlap. | |
6051 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6052 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6053 | to the same VMA range, but with the .data section mapped to a different | |
6054 | LMA. */ | |
aecc8f8a | 6055 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6056 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6057 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6058 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6059 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6060 | |
6061 | /* Initialise the segment mark field. */ | |
6062 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6063 | section->segment_mark = FALSE; |
bc67d8a6 | 6064 | |
5c44b38e AM |
6065 | /* The Solaris linker creates program headers in which all the |
6066 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6067 | file, we get confused. Check for this case, and if we find it | |
6068 | don't set the p_paddr_valid fields. */ | |
6069 | p_paddr_valid = FALSE; | |
6070 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6071 | i < num_segments; | |
6072 | i++, segment++) | |
6073 | if (segment->p_paddr != 0) | |
6074 | { | |
6075 | p_paddr_valid = TRUE; | |
6076 | break; | |
6077 | } | |
6078 | ||
252b5132 | 6079 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6080 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6081 | in the loadable segments. These can be created by weird |
aecc8f8a | 6082 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6083 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6084 | i < num_segments; | |
c044fabd | 6085 | i++, segment++) |
252b5132 | 6086 | { |
252b5132 | 6087 | unsigned int j; |
c044fabd | 6088 | Elf_Internal_Phdr *segment2; |
252b5132 | 6089 | |
aecc8f8a AM |
6090 | if (segment->p_type == PT_INTERP) |
6091 | for (section = ibfd->sections; section; section = section->next) | |
6092 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6093 | { | |
6094 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6095 | assignment code will work. */ |
aecc8f8a AM |
6096 | segment->p_vaddr = section->vma; |
6097 | break; | |
6098 | } | |
6099 | ||
bc67d8a6 | 6100 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6101 | { |
6102 | /* Remove PT_GNU_RELRO segment. */ | |
6103 | if (segment->p_type == PT_GNU_RELRO) | |
6104 | segment->p_type = PT_NULL; | |
6105 | continue; | |
6106 | } | |
c044fabd | 6107 | |
bc67d8a6 | 6108 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6109 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6110 | { |
6111 | bfd_signed_vma extra_length; | |
c044fabd | 6112 | |
bc67d8a6 | 6113 | if (segment2->p_type != PT_LOAD |
0067a569 | 6114 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6115 | continue; |
c044fabd | 6116 | |
bc67d8a6 NC |
6117 | /* Merge the two segments together. */ |
6118 | if (segment2->p_vaddr < segment->p_vaddr) | |
6119 | { | |
c044fabd | 6120 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6121 | SEGMENT. */ |
0067a569 AM |
6122 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6123 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6124 | |
bc67d8a6 NC |
6125 | if (extra_length > 0) |
6126 | { | |
0067a569 | 6127 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6128 | segment2->p_filesz += extra_length; |
6129 | } | |
c044fabd | 6130 | |
bc67d8a6 | 6131 | segment->p_type = PT_NULL; |
c044fabd | 6132 | |
bc67d8a6 NC |
6133 | /* Since we have deleted P we must restart the outer loop. */ |
6134 | i = 0; | |
6135 | segment = elf_tdata (ibfd)->phdr; | |
6136 | break; | |
6137 | } | |
6138 | else | |
6139 | { | |
c044fabd | 6140 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6141 | SEGMENT2. */ |
0067a569 AM |
6142 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6143 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6144 | |
bc67d8a6 NC |
6145 | if (extra_length > 0) |
6146 | { | |
0067a569 | 6147 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6148 | segment->p_filesz += extra_length; |
6149 | } | |
c044fabd | 6150 | |
bc67d8a6 NC |
6151 | segment2->p_type = PT_NULL; |
6152 | } | |
6153 | } | |
6154 | } | |
c044fabd | 6155 | |
bc67d8a6 NC |
6156 | /* The second scan attempts to assign sections to segments. */ |
6157 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6158 | i < num_segments; | |
0067a569 | 6159 | i++, segment++) |
bc67d8a6 | 6160 | { |
0067a569 AM |
6161 | unsigned int section_count; |
6162 | asection **sections; | |
6163 | asection *output_section; | |
6164 | unsigned int isec; | |
6165 | bfd_vma matching_lma; | |
6166 | bfd_vma suggested_lma; | |
6167 | unsigned int j; | |
dc810e39 | 6168 | bfd_size_type amt; |
0067a569 AM |
6169 | asection *first_section; |
6170 | bfd_boolean first_matching_lma; | |
6171 | bfd_boolean first_suggested_lma; | |
bc67d8a6 NC |
6172 | |
6173 | if (segment->p_type == PT_NULL) | |
6174 | continue; | |
c044fabd | 6175 | |
9f17e2a6 | 6176 | first_section = NULL; |
bc67d8a6 | 6177 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6178 | for (section = ibfd->sections, section_count = 0; |
6179 | section != NULL; | |
6180 | section = section->next) | |
9f17e2a6 L |
6181 | { |
6182 | /* Find the first section in the input segment, which may be | |
6183 | removed from the corresponding output segment. */ | |
6184 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6185 | { | |
6186 | if (first_section == NULL) | |
6187 | first_section = section; | |
6188 | if (section->output_section != NULL) | |
6189 | ++section_count; | |
6190 | } | |
6191 | } | |
811072d8 | 6192 | |
b5f852ea NC |
6193 | /* Allocate a segment map big enough to contain |
6194 | all of the sections we have selected. */ | |
dc810e39 AM |
6195 | amt = sizeof (struct elf_segment_map); |
6196 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6197 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6198 | if (map == NULL) |
b34976b6 | 6199 | return FALSE; |
252b5132 RH |
6200 | |
6201 | /* Initialise the fields of the segment map. Default to | |
6202 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
6203 | map->next = NULL; |
6204 | map->p_type = segment->p_type; | |
6205 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 6206 | map->p_flags_valid = 1; |
55d55ac7 | 6207 | |
9f17e2a6 L |
6208 | /* If the first section in the input segment is removed, there is |
6209 | no need to preserve segment physical address in the corresponding | |
6210 | output segment. */ | |
945c025a | 6211 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
6212 | { |
6213 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 6214 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 6215 | } |
252b5132 RH |
6216 | |
6217 | /* Determine if this segment contains the ELF file header | |
6218 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
6219 | map->includes_filehdr = (segment->p_offset == 0 |
6220 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 6221 | map->includes_phdrs = 0; |
252b5132 | 6222 | |
0067a569 | 6223 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 6224 | { |
bc67d8a6 NC |
6225 | map->includes_phdrs = |
6226 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6227 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
6228 | >= ((bfd_vma) iehdr->e_phoff |
6229 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 6230 | |
bc67d8a6 | 6231 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 6232 | phdr_included = TRUE; |
252b5132 RH |
6233 | } |
6234 | ||
bc67d8a6 | 6235 | if (section_count == 0) |
252b5132 RH |
6236 | { |
6237 | /* Special segments, such as the PT_PHDR segment, may contain | |
6238 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 NC |
6239 | something. They are allowed by the ELF spec however, so only |
6240 | a warning is produced. */ | |
bc67d8a6 | 6241 | if (segment->p_type == PT_LOAD) |
c86934ce NC |
6242 | (*_bfd_error_handler) (_("\ |
6243 | %B: warning: Empty loadable segment detected, is this intentional ?"), | |
0067a569 | 6244 | ibfd); |
252b5132 | 6245 | |
bc67d8a6 | 6246 | map->count = 0; |
c044fabd KH |
6247 | *pointer_to_map = map; |
6248 | pointer_to_map = &map->next; | |
252b5132 RH |
6249 | |
6250 | continue; | |
6251 | } | |
6252 | ||
6253 | /* Now scan the sections in the input BFD again and attempt | |
6254 | to add their corresponding output sections to the segment map. | |
6255 | The problem here is how to handle an output section which has | |
6256 | been moved (ie had its LMA changed). There are four possibilities: | |
6257 | ||
6258 | 1. None of the sections have been moved. | |
6259 | In this case we can continue to use the segment LMA from the | |
6260 | input BFD. | |
6261 | ||
6262 | 2. All of the sections have been moved by the same amount. | |
6263 | In this case we can change the segment's LMA to match the LMA | |
6264 | of the first section. | |
6265 | ||
6266 | 3. Some of the sections have been moved, others have not. | |
6267 | In this case those sections which have not been moved can be | |
6268 | placed in the current segment which will have to have its size, | |
6269 | and possibly its LMA changed, and a new segment or segments will | |
6270 | have to be created to contain the other sections. | |
6271 | ||
b5f852ea | 6272 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
6273 | In this case we can change the segment's LMA to match the LMA |
6274 | of the first section and we will have to create a new segment | |
6275 | or segments to contain the other sections. | |
6276 | ||
6277 | In order to save time, we allocate an array to hold the section | |
6278 | pointers that we are interested in. As these sections get assigned | |
6279 | to a segment, they are removed from this array. */ | |
6280 | ||
a50b1753 | 6281 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 6282 | if (sections == NULL) |
b34976b6 | 6283 | return FALSE; |
252b5132 RH |
6284 | |
6285 | /* Step One: Scan for segment vs section LMA conflicts. | |
6286 | Also add the sections to the section array allocated above. | |
6287 | Also add the sections to the current segment. In the common | |
6288 | case, where the sections have not been moved, this means that | |
6289 | we have completely filled the segment, and there is nothing | |
6290 | more to do. */ | |
252b5132 | 6291 | isec = 0; |
72730e0c | 6292 | matching_lma = 0; |
252b5132 | 6293 | suggested_lma = 0; |
0067a569 AM |
6294 | first_matching_lma = TRUE; |
6295 | first_suggested_lma = TRUE; | |
252b5132 | 6296 | |
147d51c2 | 6297 | for (section = ibfd->sections; |
bc67d8a6 NC |
6298 | section != NULL; |
6299 | section = section->next) | |
147d51c2 L |
6300 | if (section == first_section) |
6301 | break; | |
6302 | ||
6303 | for (j = 0; section != NULL; section = section->next) | |
252b5132 | 6304 | { |
caf47ea6 | 6305 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 6306 | { |
bc67d8a6 NC |
6307 | output_section = section->output_section; |
6308 | ||
0067a569 | 6309 | sections[j++] = section; |
252b5132 RH |
6310 | |
6311 | /* The Solaris native linker always sets p_paddr to 0. | |
6312 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
6313 | correct value. Note - some backends require that |
6314 | p_paddr be left as zero. */ | |
5c44b38e | 6315 | if (!p_paddr_valid |
4455705d | 6316 | && segment->p_vaddr != 0 |
0067a569 | 6317 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 6318 | && isec == 0 |
bc67d8a6 | 6319 | && output_section->lma != 0 |
0067a569 AM |
6320 | && output_section->vma == (segment->p_vaddr |
6321 | + (map->includes_filehdr | |
6322 | ? iehdr->e_ehsize | |
6323 | : 0) | |
6324 | + (map->includes_phdrs | |
6325 | ? (iehdr->e_phnum | |
6326 | * iehdr->e_phentsize) | |
6327 | : 0))) | |
bc67d8a6 | 6328 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
6329 | |
6330 | /* Match up the physical address of the segment with the | |
6331 | LMA address of the output section. */ | |
bc67d8a6 | 6332 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 6333 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
6334 | || (bed->want_p_paddr_set_to_zero |
6335 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 6336 | { |
0067a569 AM |
6337 | if (first_matching_lma || output_section->lma < matching_lma) |
6338 | { | |
6339 | matching_lma = output_section->lma; | |
6340 | first_matching_lma = FALSE; | |
6341 | } | |
252b5132 RH |
6342 | |
6343 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 6344 | then it does not overlap any other section within that |
252b5132 | 6345 | segment. */ |
0067a569 AM |
6346 | map->sections[isec++] = output_section; |
6347 | } | |
6348 | else if (first_suggested_lma) | |
6349 | { | |
6350 | suggested_lma = output_section->lma; | |
6351 | first_suggested_lma = FALSE; | |
252b5132 | 6352 | } |
147d51c2 L |
6353 | |
6354 | if (j == section_count) | |
6355 | break; | |
252b5132 RH |
6356 | } |
6357 | } | |
6358 | ||
bc67d8a6 | 6359 | BFD_ASSERT (j == section_count); |
252b5132 RH |
6360 | |
6361 | /* Step Two: Adjust the physical address of the current segment, | |
6362 | if necessary. */ | |
bc67d8a6 | 6363 | if (isec == section_count) |
252b5132 RH |
6364 | { |
6365 | /* All of the sections fitted within the segment as currently | |
6366 | specified. This is the default case. Add the segment to | |
6367 | the list of built segments and carry on to process the next | |
6368 | program header in the input BFD. */ | |
bc67d8a6 | 6369 | map->count = section_count; |
c044fabd KH |
6370 | *pointer_to_map = map; |
6371 | pointer_to_map = &map->next; | |
08a40648 | 6372 | |
5c44b38e AM |
6373 | if (p_paddr_valid |
6374 | && !bed->want_p_paddr_set_to_zero | |
147d51c2 | 6375 | && matching_lma != map->p_paddr |
5c44b38e AM |
6376 | && !map->includes_filehdr |
6377 | && !map->includes_phdrs) | |
3271a814 NS |
6378 | /* There is some padding before the first section in the |
6379 | segment. So, we must account for that in the output | |
6380 | segment's vma. */ | |
6381 | map->p_vaddr_offset = matching_lma - map->p_paddr; | |
08a40648 | 6382 | |
252b5132 RH |
6383 | free (sections); |
6384 | continue; | |
6385 | } | |
252b5132 RH |
6386 | else |
6387 | { | |
0067a569 | 6388 | if (!first_matching_lma) |
72730e0c AM |
6389 | { |
6390 | /* At least one section fits inside the current segment. | |
6391 | Keep it, but modify its physical address to match the | |
6392 | LMA of the first section that fitted. */ | |
bc67d8a6 | 6393 | map->p_paddr = matching_lma; |
72730e0c AM |
6394 | } |
6395 | else | |
6396 | { | |
6397 | /* None of the sections fitted inside the current segment. | |
6398 | Change the current segment's physical address to match | |
6399 | the LMA of the first section. */ | |
bc67d8a6 | 6400 | map->p_paddr = suggested_lma; |
72730e0c AM |
6401 | } |
6402 | ||
bc67d8a6 NC |
6403 | /* Offset the segment physical address from the lma |
6404 | to allow for space taken up by elf headers. */ | |
6405 | if (map->includes_filehdr) | |
010c8431 AM |
6406 | { |
6407 | if (map->p_paddr >= iehdr->e_ehsize) | |
6408 | map->p_paddr -= iehdr->e_ehsize; | |
6409 | else | |
6410 | { | |
6411 | map->includes_filehdr = FALSE; | |
6412 | map->includes_phdrs = FALSE; | |
6413 | } | |
6414 | } | |
252b5132 | 6415 | |
bc67d8a6 NC |
6416 | if (map->includes_phdrs) |
6417 | { | |
010c8431 AM |
6418 | if (map->p_paddr >= iehdr->e_phnum * iehdr->e_phentsize) |
6419 | { | |
6420 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
6421 | ||
6422 | /* iehdr->e_phnum is just an estimate of the number | |
6423 | of program headers that we will need. Make a note | |
6424 | here of the number we used and the segment we chose | |
6425 | to hold these headers, so that we can adjust the | |
6426 | offset when we know the correct value. */ | |
6427 | phdr_adjust_num = iehdr->e_phnum; | |
6428 | phdr_adjust_seg = map; | |
6429 | } | |
6430 | else | |
6431 | map->includes_phdrs = FALSE; | |
bc67d8a6 | 6432 | } |
252b5132 RH |
6433 | } |
6434 | ||
6435 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 6436 | those that fit to the current segment and removing them from the |
252b5132 RH |
6437 | sections array; but making sure not to leave large gaps. Once all |
6438 | possible sections have been assigned to the current segment it is | |
6439 | added to the list of built segments and if sections still remain | |
6440 | to be assigned, a new segment is constructed before repeating | |
6441 | the loop. */ | |
6442 | isec = 0; | |
6443 | do | |
6444 | { | |
bc67d8a6 | 6445 | map->count = 0; |
252b5132 | 6446 | suggested_lma = 0; |
0067a569 | 6447 | first_suggested_lma = TRUE; |
252b5132 RH |
6448 | |
6449 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 6450 | for (j = 0; j < section_count; j++) |
252b5132 | 6451 | { |
bc67d8a6 | 6452 | section = sections[j]; |
252b5132 | 6453 | |
bc67d8a6 | 6454 | if (section == NULL) |
252b5132 RH |
6455 | continue; |
6456 | ||
bc67d8a6 | 6457 | output_section = section->output_section; |
252b5132 | 6458 | |
bc67d8a6 | 6459 | BFD_ASSERT (output_section != NULL); |
c044fabd | 6460 | |
bc67d8a6 NC |
6461 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
6462 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 6463 | { |
bc67d8a6 | 6464 | if (map->count == 0) |
252b5132 RH |
6465 | { |
6466 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
6467 | the beginning of the segment, then something is |
6468 | wrong. */ | |
0067a569 AM |
6469 | if (output_section->lma |
6470 | != (map->p_paddr | |
6471 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
6472 | + (map->includes_phdrs | |
6473 | ? iehdr->e_phnum * iehdr->e_phentsize | |
6474 | : 0))) | |
252b5132 RH |
6475 | abort (); |
6476 | } | |
6477 | else | |
6478 | { | |
0067a569 | 6479 | asection *prev_sec; |
252b5132 | 6480 | |
bc67d8a6 | 6481 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
6482 | |
6483 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
6484 | and the start of this section is more than |
6485 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 6486 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 6487 | maxpagesize) |
caf47ea6 | 6488 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 6489 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 6490 | > output_section->lma)) |
252b5132 | 6491 | { |
0067a569 AM |
6492 | if (first_suggested_lma) |
6493 | { | |
6494 | suggested_lma = output_section->lma; | |
6495 | first_suggested_lma = FALSE; | |
6496 | } | |
252b5132 RH |
6497 | |
6498 | continue; | |
6499 | } | |
6500 | } | |
6501 | ||
bc67d8a6 | 6502 | map->sections[map->count++] = output_section; |
252b5132 RH |
6503 | ++isec; |
6504 | sections[j] = NULL; | |
b34976b6 | 6505 | section->segment_mark = TRUE; |
252b5132 | 6506 | } |
0067a569 AM |
6507 | else if (first_suggested_lma) |
6508 | { | |
6509 | suggested_lma = output_section->lma; | |
6510 | first_suggested_lma = FALSE; | |
6511 | } | |
252b5132 RH |
6512 | } |
6513 | ||
bc67d8a6 | 6514 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
6515 | |
6516 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
6517 | *pointer_to_map = map; |
6518 | pointer_to_map = &map->next; | |
252b5132 | 6519 | |
bc67d8a6 | 6520 | if (isec < section_count) |
252b5132 RH |
6521 | { |
6522 | /* We still have not allocated all of the sections to | |
6523 | segments. Create a new segment here, initialise it | |
6524 | and carry on looping. */ | |
dc810e39 AM |
6525 | amt = sizeof (struct elf_segment_map); |
6526 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 6527 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6528 | if (map == NULL) |
5ed6aba4 NC |
6529 | { |
6530 | free (sections); | |
6531 | return FALSE; | |
6532 | } | |
252b5132 RH |
6533 | |
6534 | /* Initialise the fields of the segment map. Set the physical | |
6535 | physical address to the LMA of the first section that has | |
6536 | not yet been assigned. */ | |
0067a569 AM |
6537 | map->next = NULL; |
6538 | map->p_type = segment->p_type; | |
6539 | map->p_flags = segment->p_flags; | |
6540 | map->p_flags_valid = 1; | |
6541 | map->p_paddr = suggested_lma; | |
5c44b38e | 6542 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 6543 | map->includes_filehdr = 0; |
0067a569 | 6544 | map->includes_phdrs = 0; |
252b5132 RH |
6545 | } |
6546 | } | |
bc67d8a6 | 6547 | while (isec < section_count); |
252b5132 RH |
6548 | |
6549 | free (sections); | |
6550 | } | |
6551 | ||
12bd6957 | 6552 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
6553 | |
6554 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 6555 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
6556 | the offset if necessary. */ |
6557 | if (phdr_adjust_seg != NULL) | |
6558 | { | |
6559 | unsigned int count; | |
c044fabd | 6560 | |
bc67d8a6 | 6561 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 6562 | count++; |
252b5132 | 6563 | |
bc67d8a6 NC |
6564 | if (count > phdr_adjust_num) |
6565 | phdr_adjust_seg->p_paddr | |
6566 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
6567 | } | |
c044fabd | 6568 | |
bc67d8a6 | 6569 | #undef SEGMENT_END |
eecdbe52 | 6570 | #undef SECTION_SIZE |
bc67d8a6 NC |
6571 | #undef IS_CONTAINED_BY_VMA |
6572 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 6573 | #undef IS_NOTE |
252b5132 | 6574 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 6575 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 6576 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
6577 | #undef INCLUDE_SECTION_IN_SEGMENT |
6578 | #undef SEGMENT_AFTER_SEGMENT | |
6579 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 6580 | return TRUE; |
252b5132 RH |
6581 | } |
6582 | ||
84d1d650 L |
6583 | /* Copy ELF program header information. */ |
6584 | ||
6585 | static bfd_boolean | |
6586 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
6587 | { | |
6588 | Elf_Internal_Ehdr *iehdr; | |
6589 | struct elf_segment_map *map; | |
6590 | struct elf_segment_map *map_first; | |
6591 | struct elf_segment_map **pointer_to_map; | |
6592 | Elf_Internal_Phdr *segment; | |
6593 | unsigned int i; | |
6594 | unsigned int num_segments; | |
6595 | bfd_boolean phdr_included = FALSE; | |
88967714 | 6596 | bfd_boolean p_paddr_valid; |
84d1d650 L |
6597 | |
6598 | iehdr = elf_elfheader (ibfd); | |
6599 | ||
6600 | map_first = NULL; | |
6601 | pointer_to_map = &map_first; | |
6602 | ||
88967714 AM |
6603 | /* If all the segment p_paddr fields are zero, don't set |
6604 | map->p_paddr_valid. */ | |
6605 | p_paddr_valid = FALSE; | |
84d1d650 | 6606 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
6607 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6608 | i < num_segments; | |
6609 | i++, segment++) | |
6610 | if (segment->p_paddr != 0) | |
6611 | { | |
6612 | p_paddr_valid = TRUE; | |
6613 | break; | |
6614 | } | |
6615 | ||
84d1d650 L |
6616 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6617 | i < num_segments; | |
6618 | i++, segment++) | |
6619 | { | |
6620 | asection *section; | |
6621 | unsigned int section_count; | |
6622 | bfd_size_type amt; | |
6623 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 6624 | asection *first_section = NULL; |
a76e6f2f | 6625 | asection *lowest_section; |
84d1d650 | 6626 | |
84d1d650 L |
6627 | /* Compute how many sections are in this segment. */ |
6628 | for (section = ibfd->sections, section_count = 0; | |
6629 | section != NULL; | |
6630 | section = section->next) | |
6631 | { | |
6632 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6633 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 6634 | { |
a76e6f2f AM |
6635 | if (first_section == NULL) |
6636 | first_section = section; | |
3271a814 NS |
6637 | section_count++; |
6638 | } | |
84d1d650 L |
6639 | } |
6640 | ||
6641 | /* Allocate a segment map big enough to contain | |
6642 | all of the sections we have selected. */ | |
6643 | amt = sizeof (struct elf_segment_map); | |
6644 | if (section_count != 0) | |
6645 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6646 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
6647 | if (map == NULL) |
6648 | return FALSE; | |
6649 | ||
6650 | /* Initialize the fields of the output segment map with the | |
6651 | input segment. */ | |
6652 | map->next = NULL; | |
6653 | map->p_type = segment->p_type; | |
6654 | map->p_flags = segment->p_flags; | |
6655 | map->p_flags_valid = 1; | |
6656 | map->p_paddr = segment->p_paddr; | |
88967714 | 6657 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
6658 | map->p_align = segment->p_align; |
6659 | map->p_align_valid = 1; | |
3271a814 | 6660 | map->p_vaddr_offset = 0; |
84d1d650 | 6661 | |
04c3a755 NS |
6662 | if (map->p_type == PT_GNU_RELRO |
6663 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
6664 | { |
6665 | /* The PT_GNU_RELRO segment may contain the first a few | |
6666 | bytes in the .got.plt section even if the whole .got.plt | |
6667 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
6668 | change the size of the PT_GNU_RELRO segment. |
6669 | Similarly, PT_GNU_STACK size is significant on uclinux | |
6670 | systems. */ | |
9433b9b1 | 6671 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
6672 | map->p_size_valid = 1; |
6673 | } | |
6674 | ||
84d1d650 L |
6675 | /* Determine if this segment contains the ELF file header |
6676 | and if it contains the program headers themselves. */ | |
6677 | map->includes_filehdr = (segment->p_offset == 0 | |
6678 | && segment->p_filesz >= iehdr->e_ehsize); | |
6679 | ||
6680 | map->includes_phdrs = 0; | |
6681 | if (! phdr_included || segment->p_type != PT_LOAD) | |
6682 | { | |
6683 | map->includes_phdrs = | |
6684 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6685 | && (segment->p_offset + segment->p_filesz | |
6686 | >= ((bfd_vma) iehdr->e_phoff | |
6687 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
6688 | ||
6689 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
6690 | phdr_included = TRUE; | |
6691 | } | |
6692 | ||
bbefd0a9 | 6693 | lowest_section = NULL; |
84d1d650 L |
6694 | if (section_count != 0) |
6695 | { | |
6696 | unsigned int isec = 0; | |
6697 | ||
53020534 | 6698 | for (section = first_section; |
84d1d650 L |
6699 | section != NULL; |
6700 | section = section->next) | |
6701 | { | |
6702 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6703 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
6704 | { |
6705 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
6706 | if ((section->flags & SEC_ALLOC) != 0) |
6707 | { | |
6708 | bfd_vma seg_off; | |
6709 | ||
bbefd0a9 AM |
6710 | if (lowest_section == NULL |
6711 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
6712 | lowest_section = section; |
6713 | ||
a76e6f2f AM |
6714 | /* Section lmas are set up from PT_LOAD header |
6715 | p_paddr in _bfd_elf_make_section_from_shdr. | |
6716 | If this header has a p_paddr that disagrees | |
6717 | with the section lma, flag the p_paddr as | |
6718 | invalid. */ | |
6719 | if ((section->flags & SEC_LOAD) != 0) | |
6720 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
6721 | else | |
6722 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
6723 | if (section->lma - segment->p_paddr != seg_off) | |
6724 | map->p_paddr_valid = FALSE; | |
6725 | } | |
53020534 L |
6726 | if (isec == section_count) |
6727 | break; | |
6728 | } | |
84d1d650 L |
6729 | } |
6730 | } | |
6731 | ||
a76e6f2f AM |
6732 | if (map->includes_filehdr && lowest_section != NULL) |
6733 | /* We need to keep the space used by the headers fixed. */ | |
6734 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 6735 | |
a76e6f2f AM |
6736 | if (!map->includes_phdrs |
6737 | && !map->includes_filehdr | |
6738 | && map->p_paddr_valid) | |
6739 | /* There is some other padding before the first section. */ | |
6740 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
6741 | - segment->p_paddr); | |
6742 | ||
84d1d650 L |
6743 | map->count = section_count; |
6744 | *pointer_to_map = map; | |
6745 | pointer_to_map = &map->next; | |
6746 | } | |
6747 | ||
12bd6957 | 6748 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
6749 | return TRUE; |
6750 | } | |
6751 | ||
6752 | /* Copy private BFD data. This copies or rewrites ELF program header | |
6753 | information. */ | |
6754 | ||
6755 | static bfd_boolean | |
6756 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
6757 | { | |
84d1d650 L |
6758 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
6759 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6760 | return TRUE; | |
6761 | ||
6762 | if (elf_tdata (ibfd)->phdr == NULL) | |
6763 | return TRUE; | |
6764 | ||
6765 | if (ibfd->xvec == obfd->xvec) | |
6766 | { | |
cb3ff1e5 NC |
6767 | /* Check to see if any sections in the input BFD |
6768 | covered by ELF program header have changed. */ | |
d55ce4e2 | 6769 | Elf_Internal_Phdr *segment; |
84d1d650 L |
6770 | asection *section, *osec; |
6771 | unsigned int i, num_segments; | |
6772 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
6773 | const struct elf_backend_data *bed; |
6774 | ||
6775 | bed = get_elf_backend_data (ibfd); | |
6776 | ||
6777 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
6778 | if (bed->want_p_paddr_set_to_zero) | |
6779 | goto rewrite; | |
84d1d650 L |
6780 | |
6781 | /* Initialize the segment mark field. */ | |
6782 | for (section = obfd->sections; section != NULL; | |
6783 | section = section->next) | |
6784 | section->segment_mark = FALSE; | |
6785 | ||
6786 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
6787 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6788 | i < num_segments; | |
6789 | i++, segment++) | |
6790 | { | |
5f6999aa NC |
6791 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
6792 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
6793 | which severly confuses things, so always regenerate the segment | |
6794 | map in this case. */ | |
6795 | if (segment->p_paddr == 0 | |
6796 | && segment->p_memsz == 0 | |
6797 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 6798 | goto rewrite; |
5f6999aa | 6799 | |
84d1d650 L |
6800 | for (section = ibfd->sections; |
6801 | section != NULL; section = section->next) | |
6802 | { | |
6803 | /* We mark the output section so that we know it comes | |
6804 | from the input BFD. */ | |
6805 | osec = section->output_section; | |
6806 | if (osec) | |
6807 | osec->segment_mark = TRUE; | |
6808 | ||
6809 | /* Check if this section is covered by the segment. */ | |
6810 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6811 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
6812 | { |
6813 | /* FIXME: Check if its output section is changed or | |
6814 | removed. What else do we need to check? */ | |
6815 | if (osec == NULL | |
6816 | || section->flags != osec->flags | |
6817 | || section->lma != osec->lma | |
6818 | || section->vma != osec->vma | |
6819 | || section->size != osec->size | |
6820 | || section->rawsize != osec->rawsize | |
6821 | || section->alignment_power != osec->alignment_power) | |
6822 | goto rewrite; | |
6823 | } | |
6824 | } | |
6825 | } | |
6826 | ||
cb3ff1e5 | 6827 | /* Check to see if any output section do not come from the |
84d1d650 L |
6828 | input BFD. */ |
6829 | for (section = obfd->sections; section != NULL; | |
6830 | section = section->next) | |
6831 | { | |
6832 | if (section->segment_mark == FALSE) | |
6833 | goto rewrite; | |
6834 | else | |
6835 | section->segment_mark = FALSE; | |
6836 | } | |
6837 | ||
6838 | return copy_elf_program_header (ibfd, obfd); | |
6839 | } | |
6840 | ||
6841 | rewrite: | |
f1d85785 L |
6842 | if (ibfd->xvec == obfd->xvec) |
6843 | { | |
6844 | /* When rewriting program header, set the output maxpagesize to | |
6845 | the maximum alignment of input PT_LOAD segments. */ | |
6846 | Elf_Internal_Phdr *segment; | |
6847 | unsigned int i; | |
6848 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
6849 | bfd_vma maxpagesize = 0; | |
6850 | ||
6851 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6852 | i < num_segments; | |
6853 | i++, segment++) | |
6854 | if (segment->p_type == PT_LOAD | |
6855 | && maxpagesize < segment->p_align) | |
c86934ce NC |
6856 | { |
6857 | /* PR 17512: file: f17299af. */ | |
6858 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
6859 | (*_bfd_error_handler) (_("\ | |
6860 | %B: warning: segment alignment of 0x%llx is too large"), | |
6861 | ibfd, (long long) segment->p_align); | |
6862 | else | |
6863 | maxpagesize = segment->p_align; | |
6864 | } | |
f1d85785 L |
6865 | |
6866 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
6867 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
6868 | } | |
6869 | ||
84d1d650 L |
6870 | return rewrite_elf_program_header (ibfd, obfd); |
6871 | } | |
6872 | ||
ccd2ec6a L |
6873 | /* Initialize private output section information from input section. */ |
6874 | ||
6875 | bfd_boolean | |
6876 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
6877 | asection *isec, | |
6878 | bfd *obfd, | |
6879 | asection *osec, | |
6880 | struct bfd_link_info *link_info) | |
6881 | ||
6882 | { | |
6883 | Elf_Internal_Shdr *ihdr, *ohdr; | |
dfa7b0b8 | 6884 | bfd_boolean final_link = link_info != NULL && !link_info->relocatable; |
ccd2ec6a L |
6885 | |
6886 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6887 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
6888 | return TRUE; | |
6889 | ||
ba85c43e NC |
6890 | BFD_ASSERT (elf_section_data (osec) != NULL); |
6891 | ||
dfa7b0b8 AM |
6892 | /* For objcopy and relocatable link, don't copy the output ELF |
6893 | section type from input if the output BFD section flags have been | |
6894 | set to something different. For a final link allow some flags | |
6895 | that the linker clears to differ. */ | |
42bb2e33 | 6896 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
6897 | && (osec->flags == isec->flags |
6898 | || (final_link | |
6899 | && ((osec->flags ^ isec->flags) | |
0814be7d | 6900 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 6901 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
6902 | |
6903 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
6904 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
6905 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a L |
6906 | |
6907 | /* Set things up for objcopy and relocatable link. The output | |
6908 | SHT_GROUP section will have its elf_next_in_group pointing back | |
6909 | to the input group members. Ignore linker created group section. | |
6910 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
dfa7b0b8 | 6911 | if (!final_link) |
ccd2ec6a L |
6912 | { |
6913 | if (elf_sec_group (isec) == NULL | |
6914 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0) | |
6915 | { | |
6916 | if (elf_section_flags (isec) & SHF_GROUP) | |
6917 | elf_section_flags (osec) |= SHF_GROUP; | |
6918 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
9659de1c | 6919 | elf_section_data (osec)->group = elf_section_data (isec)->group; |
ccd2ec6a | 6920 | } |
68f5ff89 L |
6921 | |
6922 | /* If not decompress, preserve SHF_COMPRESSED. */ | |
6923 | if ((ibfd->flags & BFD_DECOMPRESS) == 0) | |
6924 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
6925 | & SHF_COMPRESSED); | |
ccd2ec6a L |
6926 | } |
6927 | ||
6928 | ihdr = &elf_section_data (isec)->this_hdr; | |
6929 | ||
6930 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
6931 | don't use the output section of the linked-to section since it | |
6932 | may be NULL at this point. */ | |
6933 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
6934 | { | |
6935 | ohdr = &elf_section_data (osec)->this_hdr; | |
6936 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
6937 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
6938 | } | |
6939 | ||
6940 | osec->use_rela_p = isec->use_rela_p; | |
6941 | ||
6942 | return TRUE; | |
6943 | } | |
6944 | ||
252b5132 RH |
6945 | /* Copy private section information. This copies over the entsize |
6946 | field, and sometimes the info field. */ | |
6947 | ||
b34976b6 | 6948 | bfd_boolean |
217aa764 AM |
6949 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
6950 | asection *isec, | |
6951 | bfd *obfd, | |
6952 | asection *osec) | |
252b5132 RH |
6953 | { |
6954 | Elf_Internal_Shdr *ihdr, *ohdr; | |
6955 | ||
6956 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6957 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 6958 | return TRUE; |
252b5132 | 6959 | |
252b5132 RH |
6960 | ihdr = &elf_section_data (isec)->this_hdr; |
6961 | ohdr = &elf_section_data (osec)->this_hdr; | |
6962 | ||
6963 | ohdr->sh_entsize = ihdr->sh_entsize; | |
6964 | ||
6965 | if (ihdr->sh_type == SHT_SYMTAB | |
6966 | || ihdr->sh_type == SHT_DYNSYM | |
6967 | || ihdr->sh_type == SHT_GNU_verneed | |
6968 | || ihdr->sh_type == SHT_GNU_verdef) | |
6969 | ohdr->sh_info = ihdr->sh_info; | |
6970 | ||
ccd2ec6a L |
6971 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
6972 | NULL); | |
252b5132 RH |
6973 | } |
6974 | ||
d0bf826b AM |
6975 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
6976 | necessary if we are removing either the SHT_GROUP section or any of | |
6977 | the group member sections. DISCARDED is the value that a section's | |
6978 | output_section has if the section will be discarded, NULL when this | |
6979 | function is called from objcopy, bfd_abs_section_ptr when called | |
6980 | from the linker. */ | |
80fccad2 BW |
6981 | |
6982 | bfd_boolean | |
d0bf826b | 6983 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 6984 | { |
30288845 AM |
6985 | asection *isec; |
6986 | ||
30288845 | 6987 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 6988 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
6989 | { |
6990 | asection *first = elf_next_in_group (isec); | |
6991 | asection *s = first; | |
d0bf826b AM |
6992 | bfd_size_type removed = 0; |
6993 | ||
30288845 AM |
6994 | while (s != NULL) |
6995 | { | |
415f38a6 AM |
6996 | /* If this member section is being output but the |
6997 | SHT_GROUP section is not, then clear the group info | |
6998 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
6999 | if (s->output_section != discarded |
7000 | && isec->output_section == discarded) | |
30288845 AM |
7001 | { |
7002 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7003 | elf_group_name (s->output_section) = NULL; | |
7004 | } | |
415f38a6 AM |
7005 | /* Conversely, if the member section is not being output |
7006 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7007 | else if (s->output_section == discarded |
7008 | && isec->output_section != discarded) | |
7009 | removed += 4; | |
30288845 AM |
7010 | s = elf_next_in_group (s); |
7011 | if (s == first) | |
7012 | break; | |
7013 | } | |
d0bf826b AM |
7014 | if (removed != 0) |
7015 | { | |
7016 | if (discarded != NULL) | |
7017 | { | |
7018 | /* If we've been called for ld -r, then we need to | |
7019 | adjust the input section size. This function may | |
7020 | be called multiple times, so save the original | |
7021 | size. */ | |
7022 | if (isec->rawsize == 0) | |
7023 | isec->rawsize = isec->size; | |
7024 | isec->size = isec->rawsize - removed; | |
7025 | } | |
7026 | else | |
7027 | { | |
7028 | /* Adjust the output section size when called from | |
7029 | objcopy. */ | |
7030 | isec->output_section->size -= removed; | |
7031 | } | |
7032 | } | |
30288845 AM |
7033 | } |
7034 | ||
80fccad2 BW |
7035 | return TRUE; |
7036 | } | |
7037 | ||
d0bf826b AM |
7038 | /* Copy private header information. */ |
7039 | ||
7040 | bfd_boolean | |
7041 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7042 | { | |
7043 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7044 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7045 | return TRUE; | |
7046 | ||
7047 | /* Copy over private BFD data if it has not already been copied. | |
7048 | This must be done here, rather than in the copy_private_bfd_data | |
7049 | entry point, because the latter is called after the section | |
7050 | contents have been set, which means that the program headers have | |
7051 | already been worked out. */ | |
12bd6957 | 7052 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7053 | { |
7054 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7055 | return FALSE; | |
7056 | } | |
7057 | ||
7058 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7059 | } | |
7060 | ||
252b5132 RH |
7061 | /* Copy private symbol information. If this symbol is in a section |
7062 | which we did not map into a BFD section, try to map the section | |
7063 | index correctly. We use special macro definitions for the mapped | |
7064 | section indices; these definitions are interpreted by the | |
7065 | swap_out_syms function. */ | |
7066 | ||
9ad5cbcf AM |
7067 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7068 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7069 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7070 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7071 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7072 | |
b34976b6 | 7073 | bfd_boolean |
217aa764 AM |
7074 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7075 | asymbol *isymarg, | |
7076 | bfd *obfd, | |
7077 | asymbol *osymarg) | |
252b5132 RH |
7078 | { |
7079 | elf_symbol_type *isym, *osym; | |
7080 | ||
7081 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7082 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7083 | return TRUE; |
252b5132 RH |
7084 | |
7085 | isym = elf_symbol_from (ibfd, isymarg); | |
7086 | osym = elf_symbol_from (obfd, osymarg); | |
7087 | ||
7088 | if (isym != NULL | |
8424d8f5 | 7089 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7090 | && osym != NULL |
7091 | && bfd_is_abs_section (isym->symbol.section)) | |
7092 | { | |
7093 | unsigned int shndx; | |
7094 | ||
7095 | shndx = isym->internal_elf_sym.st_shndx; | |
7096 | if (shndx == elf_onesymtab (ibfd)) | |
7097 | shndx = MAP_ONESYMTAB; | |
7098 | else if (shndx == elf_dynsymtab (ibfd)) | |
7099 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7100 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7101 | shndx = MAP_STRTAB; |
12bd6957 | 7102 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7103 | shndx = MAP_SHSTRTAB; |
12bd6957 | 7104 | else if (shndx == elf_symtab_shndx (ibfd)) |
9ad5cbcf | 7105 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7106 | osym->internal_elf_sym.st_shndx = shndx; |
7107 | } | |
7108 | ||
b34976b6 | 7109 | return TRUE; |
252b5132 RH |
7110 | } |
7111 | ||
7112 | /* Swap out the symbols. */ | |
7113 | ||
b34976b6 | 7114 | static bfd_boolean |
217aa764 | 7115 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7116 | struct elf_strtab_hash **sttp, |
217aa764 | 7117 | int relocatable_p) |
252b5132 | 7118 | { |
9c5bfbb7 | 7119 | const struct elf_backend_data *bed; |
079e9a2f AM |
7120 | int symcount; |
7121 | asymbol **syms; | |
ef10c3ac | 7122 | struct elf_strtab_hash *stt; |
079e9a2f | 7123 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7124 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7125 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7126 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7127 | bfd_byte *outbound_syms; |
7128 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7129 | unsigned long outbound_syms_index; |
7130 | unsigned long outbound_shndx_index; | |
079e9a2f | 7131 | int idx; |
12bd6957 | 7132 | unsigned int num_locals; |
079e9a2f | 7133 | bfd_size_type amt; |
174fd7f9 | 7134 | bfd_boolean name_local_sections; |
252b5132 | 7135 | |
12bd6957 | 7136 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7137 | return FALSE; |
252b5132 | 7138 | |
c044fabd | 7139 | /* Dump out the symtabs. */ |
ef10c3ac | 7140 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7141 | if (stt == NULL) |
b34976b6 | 7142 | return FALSE; |
252b5132 | 7143 | |
079e9a2f AM |
7144 | bed = get_elf_backend_data (abfd); |
7145 | symcount = bfd_get_symcount (abfd); | |
7146 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7147 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7148 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7149 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7150 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7151 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7152 | |
7153 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7154 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7155 | ||
ef10c3ac L |
7156 | /* Allocate buffer to swap out the .strtab section. */ |
7157 | symstrtab = (struct elf_sym_strtab *) bfd_malloc ((symcount + 1) | |
7158 | * sizeof (*symstrtab)); | |
7159 | if (symstrtab == NULL) | |
7160 | { | |
7161 | _bfd_elf_strtab_free (stt); | |
7162 | return FALSE; | |
7163 | } | |
7164 | ||
a50b1753 NC |
7165 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
7166 | bed->s->sizeof_sym); | |
079e9a2f | 7167 | if (outbound_syms == NULL) |
5ed6aba4 | 7168 | { |
ef10c3ac L |
7169 | error_return: |
7170 | _bfd_elf_strtab_free (stt); | |
7171 | free (symstrtab); | |
5ed6aba4 NC |
7172 | return FALSE; |
7173 | } | |
217aa764 | 7174 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 7175 | outbound_syms_index = 0; |
252b5132 | 7176 | |
9ad5cbcf | 7177 | outbound_shndx = NULL; |
ef10c3ac | 7178 | outbound_shndx_index = 0; |
9ad5cbcf AM |
7179 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
7180 | if (symtab_shndx_hdr->sh_name != 0) | |
7181 | { | |
7182 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
a50b1753 NC |
7183 | outbound_shndx = (bfd_byte *) |
7184 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
9ad5cbcf | 7185 | if (outbound_shndx == NULL) |
ef10c3ac | 7186 | goto error_return; |
5ed6aba4 | 7187 | |
9ad5cbcf AM |
7188 | symtab_shndx_hdr->contents = outbound_shndx; |
7189 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
7190 | symtab_shndx_hdr->sh_size = amt; | |
7191 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
7192 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
7193 | } | |
7194 | ||
589e6347 | 7195 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
7196 | { |
7197 | /* Fill in zeroth symbol and swap it out. */ | |
7198 | Elf_Internal_Sym sym; | |
7199 | sym.st_name = 0; | |
7200 | sym.st_value = 0; | |
7201 | sym.st_size = 0; | |
7202 | sym.st_info = 0; | |
7203 | sym.st_other = 0; | |
7204 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 7205 | sym.st_target_internal = 0; |
ef10c3ac L |
7206 | symstrtab[0].sym = sym; |
7207 | symstrtab[0].dest_index = outbound_syms_index; | |
7208 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
7209 | outbound_syms_index++; | |
9ad5cbcf | 7210 | if (outbound_shndx != NULL) |
ef10c3ac | 7211 | outbound_shndx_index++; |
079e9a2f | 7212 | } |
252b5132 | 7213 | |
174fd7f9 RS |
7214 | name_local_sections |
7215 | = (bed->elf_backend_name_local_section_symbols | |
7216 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
7217 | ||
079e9a2f | 7218 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 7219 | for (idx = 0; idx < symcount;) |
252b5132 | 7220 | { |
252b5132 | 7221 | Elf_Internal_Sym sym; |
079e9a2f AM |
7222 | bfd_vma value = syms[idx]->value; |
7223 | elf_symbol_type *type_ptr; | |
7224 | flagword flags = syms[idx]->flags; | |
7225 | int type; | |
252b5132 | 7226 | |
174fd7f9 RS |
7227 | if (!name_local_sections |
7228 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
7229 | { |
7230 | /* Local section symbols have no name. */ | |
ef10c3ac | 7231 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
7232 | } |
7233 | else | |
7234 | { | |
ef10c3ac L |
7235 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
7236 | to get the final offset for st_name. */ | |
7237 | sym.st_name | |
7238 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
7239 | FALSE); | |
079e9a2f | 7240 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 7241 | goto error_return; |
079e9a2f | 7242 | } |
252b5132 | 7243 | |
079e9a2f | 7244 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 7245 | |
079e9a2f AM |
7246 | if ((flags & BSF_SECTION_SYM) == 0 |
7247 | && bfd_is_com_section (syms[idx]->section)) | |
7248 | { | |
7249 | /* ELF common symbols put the alignment into the `value' field, | |
7250 | and the size into the `size' field. This is backwards from | |
7251 | how BFD handles it, so reverse it here. */ | |
7252 | sym.st_size = value; | |
7253 | if (type_ptr == NULL | |
7254 | || type_ptr->internal_elf_sym.st_value == 0) | |
7255 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
7256 | else | |
7257 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
7258 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
7259 | (abfd, syms[idx]->section); | |
7260 | } | |
7261 | else | |
7262 | { | |
7263 | asection *sec = syms[idx]->section; | |
cb33740c | 7264 | unsigned int shndx; |
252b5132 | 7265 | |
079e9a2f AM |
7266 | if (sec->output_section) |
7267 | { | |
7268 | value += sec->output_offset; | |
7269 | sec = sec->output_section; | |
7270 | } | |
589e6347 | 7271 | |
079e9a2f AM |
7272 | /* Don't add in the section vma for relocatable output. */ |
7273 | if (! relocatable_p) | |
7274 | value += sec->vma; | |
7275 | sym.st_value = value; | |
7276 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
7277 | ||
7278 | if (bfd_is_abs_section (sec) | |
7279 | && type_ptr != NULL | |
7280 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
7281 | { | |
7282 | /* This symbol is in a real ELF section which we did | |
7283 | not create as a BFD section. Undo the mapping done | |
7284 | by copy_private_symbol_data. */ | |
7285 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
7286 | switch (shndx) | |
7287 | { | |
7288 | case MAP_ONESYMTAB: | |
7289 | shndx = elf_onesymtab (abfd); | |
7290 | break; | |
7291 | case MAP_DYNSYMTAB: | |
7292 | shndx = elf_dynsymtab (abfd); | |
7293 | break; | |
7294 | case MAP_STRTAB: | |
12bd6957 | 7295 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
7296 | break; |
7297 | case MAP_SHSTRTAB: | |
12bd6957 | 7298 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 7299 | break; |
9ad5cbcf | 7300 | case MAP_SYM_SHNDX: |
12bd6957 | 7301 | shndx = elf_symtab_shndx (abfd); |
9ad5cbcf | 7302 | break; |
079e9a2f | 7303 | default: |
15bc576a | 7304 | shndx = SHN_ABS; |
079e9a2f AM |
7305 | break; |
7306 | } | |
7307 | } | |
7308 | else | |
7309 | { | |
7310 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 7311 | |
cb33740c | 7312 | if (shndx == SHN_BAD) |
079e9a2f AM |
7313 | { |
7314 | asection *sec2; | |
7315 | ||
7316 | /* Writing this would be a hell of a lot easier if | |
7317 | we had some decent documentation on bfd, and | |
7318 | knew what to expect of the library, and what to | |
7319 | demand of applications. For example, it | |
7320 | appears that `objcopy' might not set the | |
7321 | section of a symbol to be a section that is | |
7322 | actually in the output file. */ | |
7323 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
589e6347 NC |
7324 | if (sec2 == NULL) |
7325 | { | |
7326 | _bfd_error_handler (_("\ | |
7327 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
7328 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
7329 | sec->name); | |
811072d8 | 7330 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 7331 | goto error_return; |
589e6347 | 7332 | } |
811072d8 | 7333 | |
079e9a2f | 7334 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); |
cb33740c | 7335 | BFD_ASSERT (shndx != SHN_BAD); |
079e9a2f AM |
7336 | } |
7337 | } | |
252b5132 | 7338 | |
079e9a2f AM |
7339 | sym.st_shndx = shndx; |
7340 | } | |
252b5132 | 7341 | |
13ae64f3 JJ |
7342 | if ((flags & BSF_THREAD_LOCAL) != 0) |
7343 | type = STT_TLS; | |
d8045f23 NC |
7344 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
7345 | type = STT_GNU_IFUNC; | |
13ae64f3 | 7346 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
7347 | type = STT_FUNC; |
7348 | else if ((flags & BSF_OBJECT) != 0) | |
7349 | type = STT_OBJECT; | |
d9352518 DB |
7350 | else if ((flags & BSF_RELC) != 0) |
7351 | type = STT_RELC; | |
7352 | else if ((flags & BSF_SRELC) != 0) | |
7353 | type = STT_SRELC; | |
079e9a2f AM |
7354 | else |
7355 | type = STT_NOTYPE; | |
252b5132 | 7356 | |
13ae64f3 JJ |
7357 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
7358 | type = STT_TLS; | |
7359 | ||
589e6347 | 7360 | /* Processor-specific types. */ |
079e9a2f AM |
7361 | if (type_ptr != NULL |
7362 | && bed->elf_backend_get_symbol_type) | |
7363 | type = ((*bed->elf_backend_get_symbol_type) | |
7364 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 7365 | |
079e9a2f AM |
7366 | if (flags & BSF_SECTION_SYM) |
7367 | { | |
7368 | if (flags & BSF_GLOBAL) | |
7369 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
7370 | else | |
7371 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
7372 | } | |
7373 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 7374 | { |
504b7d20 | 7375 | #ifdef USE_STT_COMMON |
0a40daed MK |
7376 | if (type == STT_OBJECT) |
7377 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_COMMON); | |
7378 | else | |
504b7d20 | 7379 | #endif |
c91e322a | 7380 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); |
0a40daed | 7381 | } |
079e9a2f AM |
7382 | else if (bfd_is_und_section (syms[idx]->section)) |
7383 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
7384 | ? STB_WEAK | |
7385 | : STB_GLOBAL), | |
7386 | type); | |
7387 | else if (flags & BSF_FILE) | |
7388 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
7389 | else | |
7390 | { | |
7391 | int bind = STB_LOCAL; | |
252b5132 | 7392 | |
079e9a2f AM |
7393 | if (flags & BSF_LOCAL) |
7394 | bind = STB_LOCAL; | |
3e7a7d11 NC |
7395 | else if (flags & BSF_GNU_UNIQUE) |
7396 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
7397 | else if (flags & BSF_WEAK) |
7398 | bind = STB_WEAK; | |
7399 | else if (flags & BSF_GLOBAL) | |
7400 | bind = STB_GLOBAL; | |
252b5132 | 7401 | |
079e9a2f AM |
7402 | sym.st_info = ELF_ST_INFO (bind, type); |
7403 | } | |
252b5132 | 7404 | |
079e9a2f | 7405 | if (type_ptr != NULL) |
35fc36a8 RS |
7406 | { |
7407 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
7408 | sym.st_target_internal | |
7409 | = type_ptr->internal_elf_sym.st_target_internal; | |
7410 | } | |
079e9a2f | 7411 | else |
35fc36a8 RS |
7412 | { |
7413 | sym.st_other = 0; | |
7414 | sym.st_target_internal = 0; | |
7415 | } | |
252b5132 | 7416 | |
ef10c3ac L |
7417 | idx++; |
7418 | symstrtab[idx].sym = sym; | |
7419 | symstrtab[idx].dest_index = outbound_syms_index; | |
7420 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
7421 | ||
7422 | outbound_syms_index++; | |
9ad5cbcf | 7423 | if (outbound_shndx != NULL) |
ef10c3ac L |
7424 | outbound_shndx_index++; |
7425 | } | |
7426 | ||
7427 | /* Finalize the .strtab section. */ | |
7428 | _bfd_elf_strtab_finalize (stt); | |
7429 | ||
7430 | /* Swap out the .strtab section. */ | |
7431 | for (idx = 0; idx <= symcount; idx++) | |
7432 | { | |
7433 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
7434 | if (elfsym->sym.st_name == (unsigned long) -1) | |
7435 | elfsym->sym.st_name = 0; | |
7436 | else | |
7437 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
7438 | elfsym->sym.st_name); | |
7439 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
7440 | (outbound_syms | |
7441 | + (elfsym->dest_index | |
7442 | * bed->s->sizeof_sym)), | |
7443 | (outbound_shndx | |
7444 | + (elfsym->destshndx_index | |
7445 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 7446 | } |
ef10c3ac | 7447 | free (symstrtab); |
252b5132 | 7448 | |
079e9a2f | 7449 | *sttp = stt; |
ef10c3ac | 7450 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 7451 | symstrtab_hdr->sh_type = SHT_STRTAB; |
252b5132 | 7452 | |
079e9a2f AM |
7453 | symstrtab_hdr->sh_flags = 0; |
7454 | symstrtab_hdr->sh_addr = 0; | |
7455 | symstrtab_hdr->sh_entsize = 0; | |
7456 | symstrtab_hdr->sh_link = 0; | |
7457 | symstrtab_hdr->sh_info = 0; | |
7458 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 7459 | |
b34976b6 | 7460 | return TRUE; |
252b5132 RH |
7461 | } |
7462 | ||
7463 | /* Return the number of bytes required to hold the symtab vector. | |
7464 | ||
7465 | Note that we base it on the count plus 1, since we will null terminate | |
7466 | the vector allocated based on this size. However, the ELF symbol table | |
7467 | always has a dummy entry as symbol #0, so it ends up even. */ | |
7468 | ||
7469 | long | |
217aa764 | 7470 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
7471 | { |
7472 | long symcount; | |
7473 | long symtab_size; | |
7474 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
7475 | ||
7476 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
7477 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
7478 | if (symcount > 0) | |
7479 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
7480 | |
7481 | return symtab_size; | |
7482 | } | |
7483 | ||
7484 | long | |
217aa764 | 7485 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
7486 | { |
7487 | long symcount; | |
7488 | long symtab_size; | |
7489 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
7490 | ||
7491 | if (elf_dynsymtab (abfd) == 0) | |
7492 | { | |
7493 | bfd_set_error (bfd_error_invalid_operation); | |
7494 | return -1; | |
7495 | } | |
7496 | ||
7497 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
7498 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
7499 | if (symcount > 0) | |
7500 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
7501 | |
7502 | return symtab_size; | |
7503 | } | |
7504 | ||
7505 | long | |
217aa764 AM |
7506 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
7507 | sec_ptr asect) | |
252b5132 RH |
7508 | { |
7509 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
7510 | } | |
7511 | ||
7512 | /* Canonicalize the relocs. */ | |
7513 | ||
7514 | long | |
217aa764 AM |
7515 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
7516 | sec_ptr section, | |
7517 | arelent **relptr, | |
7518 | asymbol **symbols) | |
252b5132 RH |
7519 | { |
7520 | arelent *tblptr; | |
7521 | unsigned int i; | |
9c5bfbb7 | 7522 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 7523 | |
b34976b6 | 7524 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
7525 | return -1; |
7526 | ||
7527 | tblptr = section->relocation; | |
7528 | for (i = 0; i < section->reloc_count; i++) | |
7529 | *relptr++ = tblptr++; | |
7530 | ||
7531 | *relptr = NULL; | |
7532 | ||
7533 | return section->reloc_count; | |
7534 | } | |
7535 | ||
7536 | long | |
6cee3f79 | 7537 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 7538 | { |
9c5bfbb7 | 7539 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7540 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
7541 | |
7542 | if (symcount >= 0) | |
7543 | bfd_get_symcount (abfd) = symcount; | |
7544 | return symcount; | |
7545 | } | |
7546 | ||
7547 | long | |
217aa764 AM |
7548 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
7549 | asymbol **allocation) | |
252b5132 | 7550 | { |
9c5bfbb7 | 7551 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7552 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
7553 | |
7554 | if (symcount >= 0) | |
7555 | bfd_get_dynamic_symcount (abfd) = symcount; | |
7556 | return symcount; | |
252b5132 RH |
7557 | } |
7558 | ||
8615f3f2 AM |
7559 | /* Return the size required for the dynamic reloc entries. Any loadable |
7560 | section that was actually installed in the BFD, and has type SHT_REL | |
7561 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
7562 | dynamic reloc section. */ | |
252b5132 RH |
7563 | |
7564 | long | |
217aa764 | 7565 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
7566 | { |
7567 | long ret; | |
7568 | asection *s; | |
7569 | ||
7570 | if (elf_dynsymtab (abfd) == 0) | |
7571 | { | |
7572 | bfd_set_error (bfd_error_invalid_operation); | |
7573 | return -1; | |
7574 | } | |
7575 | ||
7576 | ret = sizeof (arelent *); | |
7577 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 7578 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7579 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7580 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 7581 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
7582 | * sizeof (arelent *)); |
7583 | ||
7584 | return ret; | |
7585 | } | |
7586 | ||
8615f3f2 AM |
7587 | /* Canonicalize the dynamic relocation entries. Note that we return the |
7588 | dynamic relocations as a single block, although they are actually | |
7589 | associated with particular sections; the interface, which was | |
7590 | designed for SunOS style shared libraries, expects that there is only | |
7591 | one set of dynamic relocs. Any loadable section that was actually | |
7592 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
7593 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
7594 | |
7595 | long | |
217aa764 AM |
7596 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
7597 | arelent **storage, | |
7598 | asymbol **syms) | |
252b5132 | 7599 | { |
217aa764 | 7600 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
7601 | asection *s; |
7602 | long ret; | |
7603 | ||
7604 | if (elf_dynsymtab (abfd) == 0) | |
7605 | { | |
7606 | bfd_set_error (bfd_error_invalid_operation); | |
7607 | return -1; | |
7608 | } | |
7609 | ||
7610 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
7611 | ret = 0; | |
7612 | for (s = abfd->sections; s != NULL; s = s->next) | |
7613 | { | |
266b05cf | 7614 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7615 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7616 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
7617 | { | |
7618 | arelent *p; | |
7619 | long count, i; | |
7620 | ||
b34976b6 | 7621 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 7622 | return -1; |
eea6121a | 7623 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
7624 | p = s->relocation; |
7625 | for (i = 0; i < count; i++) | |
7626 | *storage++ = p++; | |
7627 | ret += count; | |
7628 | } | |
7629 | } | |
7630 | ||
7631 | *storage = NULL; | |
7632 | ||
7633 | return ret; | |
7634 | } | |
7635 | \f | |
7636 | /* Read in the version information. */ | |
7637 | ||
b34976b6 | 7638 | bfd_boolean |
fc0e6df6 | 7639 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
7640 | { |
7641 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
7642 | unsigned int freeidx = 0; |
7643 | ||
7644 | if (elf_dynverref (abfd) != 0) | |
7645 | { | |
7646 | Elf_Internal_Shdr *hdr; | |
7647 | Elf_External_Verneed *everneed; | |
7648 | Elf_Internal_Verneed *iverneed; | |
7649 | unsigned int i; | |
d0fb9a8d | 7650 | bfd_byte *contents_end; |
fc0e6df6 PB |
7651 | |
7652 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
7653 | ||
601a03ba | 7654 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verneed)) |
d0fb9a8d | 7655 | { |
601a03ba AM |
7656 | error_return_bad_verref: |
7657 | (*_bfd_error_handler) | |
7658 | (_("%B: .gnu.version_r invalid entry"), abfd); | |
7659 | bfd_set_error (bfd_error_bad_value); | |
d0fb9a8d JJ |
7660 | error_return_verref: |
7661 | elf_tdata (abfd)->verref = NULL; | |
7662 | elf_tdata (abfd)->cverrefs = 0; | |
7663 | goto error_return; | |
7664 | } | |
601a03ba AM |
7665 | |
7666 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
7667 | if (contents == NULL) | |
7668 | goto error_return_verref; | |
7669 | ||
fc0e6df6 PB |
7670 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
7671 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 7672 | goto error_return_verref; |
fc0e6df6 | 7673 | |
601a03ba AM |
7674 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
7675 | bfd_zalloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); | |
7676 | ||
7677 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
7678 | goto error_return_verref; |
7679 | ||
7680 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
7681 | == sizeof (Elf_External_Vernaux)); | |
7682 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
7683 | everneed = (Elf_External_Verneed *) contents; |
7684 | iverneed = elf_tdata (abfd)->verref; | |
7685 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
7686 | { | |
7687 | Elf_External_Vernaux *evernaux; | |
7688 | Elf_Internal_Vernaux *ivernaux; | |
7689 | unsigned int j; | |
7690 | ||
7691 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
7692 | ||
7693 | iverneed->vn_bfd = abfd; | |
7694 | ||
7695 | iverneed->vn_filename = | |
7696 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7697 | iverneed->vn_file); | |
7698 | if (iverneed->vn_filename == NULL) | |
601a03ba | 7699 | goto error_return_bad_verref; |
fc0e6df6 | 7700 | |
d0fb9a8d JJ |
7701 | if (iverneed->vn_cnt == 0) |
7702 | iverneed->vn_auxptr = NULL; | |
7703 | else | |
7704 | { | |
a50b1753 NC |
7705 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
7706 | bfd_alloc2 (abfd, iverneed->vn_cnt, | |
7707 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
7708 | if (iverneed->vn_auxptr == NULL) |
7709 | goto error_return_verref; | |
7710 | } | |
7711 | ||
7712 | if (iverneed->vn_aux | |
7713 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 7714 | goto error_return_bad_verref; |
fc0e6df6 PB |
7715 | |
7716 | evernaux = ((Elf_External_Vernaux *) | |
7717 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
7718 | ivernaux = iverneed->vn_auxptr; | |
7719 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
7720 | { | |
7721 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
7722 | ||
7723 | ivernaux->vna_nodename = | |
7724 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7725 | ivernaux->vna_name); | |
7726 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 7727 | goto error_return_bad_verref; |
fc0e6df6 | 7728 | |
25ff461f AM |
7729 | if (ivernaux->vna_other > freeidx) |
7730 | freeidx = ivernaux->vna_other; | |
7731 | ||
7732 | ivernaux->vna_nextptr = NULL; | |
7733 | if (ivernaux->vna_next == 0) | |
7734 | { | |
7735 | iverneed->vn_cnt = j + 1; | |
7736 | break; | |
7737 | } | |
fc0e6df6 PB |
7738 | if (j + 1 < iverneed->vn_cnt) |
7739 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 7740 | |
d0fb9a8d JJ |
7741 | if (ivernaux->vna_next |
7742 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 7743 | goto error_return_bad_verref; |
d0fb9a8d | 7744 | |
fc0e6df6 PB |
7745 | evernaux = ((Elf_External_Vernaux *) |
7746 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
7747 | } |
7748 | ||
25ff461f AM |
7749 | iverneed->vn_nextref = NULL; |
7750 | if (iverneed->vn_next == 0) | |
7751 | break; | |
fc0e6df6 PB |
7752 | if (i + 1 < hdr->sh_info) |
7753 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 7754 | |
d0fb9a8d JJ |
7755 | if (iverneed->vn_next |
7756 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 7757 | goto error_return_bad_verref; |
d0fb9a8d | 7758 | |
fc0e6df6 PB |
7759 | everneed = ((Elf_External_Verneed *) |
7760 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
7761 | } | |
25ff461f | 7762 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
7763 | |
7764 | free (contents); | |
7765 | contents = NULL; | |
7766 | } | |
252b5132 RH |
7767 | |
7768 | if (elf_dynverdef (abfd) != 0) | |
7769 | { | |
7770 | Elf_Internal_Shdr *hdr; | |
7771 | Elf_External_Verdef *everdef; | |
7772 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
7773 | Elf_Internal_Verdef *iverdefarr; |
7774 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 7775 | unsigned int i; |
062e2358 | 7776 | unsigned int maxidx; |
d0fb9a8d | 7777 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
7778 | |
7779 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
7780 | ||
601a03ba AM |
7781 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
7782 | { | |
7783 | error_return_bad_verdef: | |
7784 | (*_bfd_error_handler) | |
7785 | (_("%B: .gnu.version_d invalid entry"), abfd); | |
7786 | bfd_set_error (bfd_error_bad_value); | |
7787 | error_return_verdef: | |
7788 | elf_tdata (abfd)->verdef = NULL; | |
7789 | elf_tdata (abfd)->cverdefs = 0; | |
7790 | goto error_return; | |
7791 | } | |
7792 | ||
a50b1753 | 7793 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 7794 | if (contents == NULL) |
601a03ba | 7795 | goto error_return_verdef; |
252b5132 | 7796 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 7797 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 7798 | goto error_return_verdef; |
d0fb9a8d JJ |
7799 | |
7800 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
7801 | >= sizeof (Elf_External_Verdaux)); | |
7802 | contents_end_def = contents + hdr->sh_size | |
7803 | - sizeof (Elf_External_Verdef); | |
7804 | contents_end_aux = contents + hdr->sh_size | |
7805 | - sizeof (Elf_External_Verdaux); | |
7806 | ||
f631889e UD |
7807 | /* We know the number of entries in the section but not the maximum |
7808 | index. Therefore we have to run through all entries and find | |
7809 | the maximum. */ | |
252b5132 | 7810 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
7811 | maxidx = 0; |
7812 | for (i = 0; i < hdr->sh_info; ++i) | |
7813 | { | |
7814 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
7815 | ||
601a03ba AM |
7816 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
7817 | goto error_return_bad_verdef; | |
062e2358 AM |
7818 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
7819 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 7820 | |
25ff461f AM |
7821 | if (iverdefmem.vd_next == 0) |
7822 | break; | |
7823 | ||
d0fb9a8d JJ |
7824 | if (iverdefmem.vd_next |
7825 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 7826 | goto error_return_bad_verdef; |
d0fb9a8d | 7827 | |
f631889e UD |
7828 | everdef = ((Elf_External_Verdef *) |
7829 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
7830 | } | |
7831 | ||
fc0e6df6 PB |
7832 | if (default_imported_symver) |
7833 | { | |
7834 | if (freeidx > maxidx) | |
7835 | maxidx = ++freeidx; | |
7836 | else | |
7837 | freeidx = ++maxidx; | |
7838 | } | |
201159ec | 7839 | |
601a03ba AM |
7840 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7841 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 7842 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 7843 | goto error_return_verdef; |
f631889e UD |
7844 | |
7845 | elf_tdata (abfd)->cverdefs = maxidx; | |
7846 | ||
7847 | everdef = (Elf_External_Verdef *) contents; | |
7848 | iverdefarr = elf_tdata (abfd)->verdef; | |
7849 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
7850 | { |
7851 | Elf_External_Verdaux *everdaux; | |
7852 | Elf_Internal_Verdaux *iverdaux; | |
7853 | unsigned int j; | |
7854 | ||
f631889e UD |
7855 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
7856 | ||
d0fb9a8d | 7857 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 7858 | goto error_return_bad_verdef; |
d0fb9a8d | 7859 | |
f631889e UD |
7860 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
7861 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
7862 | |
7863 | iverdef->vd_bfd = abfd; | |
7864 | ||
d0fb9a8d JJ |
7865 | if (iverdef->vd_cnt == 0) |
7866 | iverdef->vd_auxptr = NULL; | |
7867 | else | |
7868 | { | |
a50b1753 NC |
7869 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7870 | bfd_alloc2 (abfd, iverdef->vd_cnt, | |
7871 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7872 | if (iverdef->vd_auxptr == NULL) |
7873 | goto error_return_verdef; | |
7874 | } | |
7875 | ||
7876 | if (iverdef->vd_aux | |
7877 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 7878 | goto error_return_bad_verdef; |
252b5132 RH |
7879 | |
7880 | everdaux = ((Elf_External_Verdaux *) | |
7881 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
7882 | iverdaux = iverdef->vd_auxptr; | |
7883 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
7884 | { | |
7885 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
7886 | ||
7887 | iverdaux->vda_nodename = | |
7888 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7889 | iverdaux->vda_name); | |
7890 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 7891 | goto error_return_bad_verdef; |
252b5132 | 7892 | |
25ff461f AM |
7893 | iverdaux->vda_nextptr = NULL; |
7894 | if (iverdaux->vda_next == 0) | |
7895 | { | |
7896 | iverdef->vd_cnt = j + 1; | |
7897 | break; | |
7898 | } | |
252b5132 RH |
7899 | if (j + 1 < iverdef->vd_cnt) |
7900 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 7901 | |
d0fb9a8d JJ |
7902 | if (iverdaux->vda_next |
7903 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 7904 | goto error_return_bad_verdef; |
d0fb9a8d | 7905 | |
252b5132 RH |
7906 | everdaux = ((Elf_External_Verdaux *) |
7907 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
7908 | } | |
7909 | ||
d0fb9a8d JJ |
7910 | if (iverdef->vd_cnt) |
7911 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 7912 | |
25ff461f AM |
7913 | iverdef->vd_nextdef = NULL; |
7914 | if (iverdef->vd_next == 0) | |
7915 | break; | |
d0fb9a8d | 7916 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 7917 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
7918 | |
7919 | everdef = ((Elf_External_Verdef *) | |
7920 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
7921 | } | |
7922 | ||
7923 | free (contents); | |
7924 | contents = NULL; | |
7925 | } | |
fc0e6df6 | 7926 | else if (default_imported_symver) |
252b5132 | 7927 | { |
fc0e6df6 PB |
7928 | if (freeidx < 3) |
7929 | freeidx = 3; | |
7930 | else | |
7931 | freeidx++; | |
252b5132 | 7932 | |
a50b1753 NC |
7933 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7934 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); | |
fc0e6df6 | 7935 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
7936 | goto error_return; |
7937 | ||
fc0e6df6 PB |
7938 | elf_tdata (abfd)->cverdefs = freeidx; |
7939 | } | |
252b5132 | 7940 | |
fc0e6df6 PB |
7941 | /* Create a default version based on the soname. */ |
7942 | if (default_imported_symver) | |
7943 | { | |
7944 | Elf_Internal_Verdef *iverdef; | |
7945 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 7946 | |
5bb3703f | 7947 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 7948 | |
fc0e6df6 PB |
7949 | iverdef->vd_version = VER_DEF_CURRENT; |
7950 | iverdef->vd_flags = 0; | |
7951 | iverdef->vd_ndx = freeidx; | |
7952 | iverdef->vd_cnt = 1; | |
252b5132 | 7953 | |
fc0e6df6 | 7954 | iverdef->vd_bfd = abfd; |
252b5132 | 7955 | |
fc0e6df6 PB |
7956 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
7957 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 7958 | goto error_return_verdef; |
fc0e6df6 | 7959 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
7960 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
7961 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
7962 | if (iverdef->vd_auxptr == NULL) |
7963 | goto error_return_verdef; | |
252b5132 | 7964 | |
fc0e6df6 PB |
7965 | iverdaux = iverdef->vd_auxptr; |
7966 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
7967 | } |
7968 | ||
b34976b6 | 7969 | return TRUE; |
252b5132 RH |
7970 | |
7971 | error_return: | |
5ed6aba4 | 7972 | if (contents != NULL) |
252b5132 | 7973 | free (contents); |
b34976b6 | 7974 | return FALSE; |
252b5132 RH |
7975 | } |
7976 | \f | |
7977 | asymbol * | |
217aa764 | 7978 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
7979 | { |
7980 | elf_symbol_type *newsym; | |
7981 | ||
201159ec | 7982 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof * newsym); |
252b5132 RH |
7983 | if (!newsym) |
7984 | return NULL; | |
201159ec NC |
7985 | newsym->symbol.the_bfd = abfd; |
7986 | return &newsym->symbol; | |
252b5132 RH |
7987 | } |
7988 | ||
7989 | void | |
217aa764 AM |
7990 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
7991 | asymbol *symbol, | |
7992 | symbol_info *ret) | |
252b5132 RH |
7993 | { |
7994 | bfd_symbol_info (symbol, ret); | |
7995 | } | |
7996 | ||
7997 | /* Return whether a symbol name implies a local symbol. Most targets | |
7998 | use this function for the is_local_label_name entry point, but some | |
7999 | override it. */ | |
8000 | ||
b34976b6 | 8001 | bfd_boolean |
217aa764 AM |
8002 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8003 | const char *name) | |
252b5132 RH |
8004 | { |
8005 | /* Normal local symbols start with ``.L''. */ | |
8006 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8007 | return TRUE; |
252b5132 RH |
8008 | |
8009 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8010 | DWARF debugging symbols starting with ``..''. */ | |
8011 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8012 | return TRUE; |
252b5132 RH |
8013 | |
8014 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8015 | emitting DWARF debugging output. I suspect this is actually a | |
8016 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8017 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8018 | underscore to be emitted on some ELF targets). For ease of use, | |
8019 | we treat such symbols as local. */ | |
8020 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8021 | return TRUE; |
252b5132 | 8022 | |
b1fa9dd6 NC |
8023 | /* Treat assembler generated fake symbols, dollar local labels and |
8024 | forward-backward labels (aka local labels) as locals. | |
8025 | These labels have the form: | |
8026 | ||
8027 | L0^A.* (fake symbols) | |
8028 | ||
8029 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8030 | ||
8031 | Versions which start with .L will have already been matched above, | |
8032 | so we only need to match the rest. */ | |
8033 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8034 | { | |
8035 | bfd_boolean ret = FALSE; | |
8036 | const char * p; | |
8037 | char c; | |
8038 | ||
8039 | for (p = name + 2; (c = *p); p++) | |
8040 | { | |
8041 | if (c == 1 || c == 2) | |
8042 | { | |
8043 | if (c == 1 && p == name + 2) | |
8044 | /* A fake symbol. */ | |
8045 | return TRUE; | |
8046 | ||
8047 | /* FIXME: We are being paranoid here and treating symbols like | |
8048 | L0^Bfoo as if there were non-local, on the grounds that the | |
8049 | assembler will never generate them. But can any symbol | |
8050 | containing an ASCII value in the range 1-31 ever be anything | |
8051 | other than some kind of local ? */ | |
8052 | ret = TRUE; | |
8053 | } | |
8054 | ||
8055 | if (! ISDIGIT (c)) | |
8056 | { | |
8057 | ret = FALSE; | |
8058 | break; | |
8059 | } | |
8060 | } | |
8061 | return ret; | |
8062 | } | |
ffa54770 | 8063 | |
b34976b6 | 8064 | return FALSE; |
252b5132 RH |
8065 | } |
8066 | ||
8067 | alent * | |
217aa764 AM |
8068 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8069 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8070 | { |
8071 | abort (); | |
8072 | return NULL; | |
8073 | } | |
8074 | ||
b34976b6 | 8075 | bfd_boolean |
217aa764 AM |
8076 | _bfd_elf_set_arch_mach (bfd *abfd, |
8077 | enum bfd_architecture arch, | |
8078 | unsigned long machine) | |
252b5132 RH |
8079 | { |
8080 | /* If this isn't the right architecture for this backend, and this | |
8081 | isn't the generic backend, fail. */ | |
8082 | if (arch != get_elf_backend_data (abfd)->arch | |
8083 | && arch != bfd_arch_unknown | |
8084 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8085 | return FALSE; |
252b5132 RH |
8086 | |
8087 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8088 | } | |
8089 | ||
d1fad7c6 NC |
8090 | /* Find the nearest line to a particular section and offset, |
8091 | for error reporting. */ | |
8092 | ||
b34976b6 | 8093 | bfd_boolean |
217aa764 | 8094 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8095 | asymbol **symbols, |
fb167eb2 | 8096 | asection *section, |
217aa764 AM |
8097 | bfd_vma offset, |
8098 | const char **filename_ptr, | |
8099 | const char **functionname_ptr, | |
fb167eb2 AM |
8100 | unsigned int *line_ptr, |
8101 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8102 | { |
b34976b6 | 8103 | bfd_boolean found; |
d1fad7c6 | 8104 | |
fb167eb2 | 8105 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8106 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
8107 | line_ptr, discriminator_ptr, |
8108 | dwarf_debug_sections, 0, | |
e00e8198 AM |
8109 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8110 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8111 | filename_ptr, functionname_ptr, | |
8112 | line_ptr)) | |
d1fad7c6 NC |
8113 | { |
8114 | if (!*functionname_ptr) | |
e00e8198 AM |
8115 | _bfd_elf_find_function (abfd, symbols, section, offset, |
8116 | *filename_ptr ? NULL : filename_ptr, | |
8117 | functionname_ptr); | |
b34976b6 | 8118 | return TRUE; |
d1fad7c6 NC |
8119 | } |
8120 | ||
8121 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
8122 | &found, filename_ptr, |
8123 | functionname_ptr, line_ptr, | |
8124 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 8125 | return FALSE; |
dc43ada5 | 8126 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 8127 | return TRUE; |
d1fad7c6 NC |
8128 | |
8129 | if (symbols == NULL) | |
b34976b6 | 8130 | return FALSE; |
d1fad7c6 | 8131 | |
e00e8198 AM |
8132 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
8133 | filename_ptr, functionname_ptr)) | |
b34976b6 | 8134 | return FALSE; |
d1fad7c6 | 8135 | |
252b5132 | 8136 | *line_ptr = 0; |
b34976b6 | 8137 | return TRUE; |
252b5132 RH |
8138 | } |
8139 | ||
5420f73d L |
8140 | /* Find the line for a symbol. */ |
8141 | ||
8142 | bfd_boolean | |
8143 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
8144 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 8145 | { |
fb167eb2 AM |
8146 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
8147 | filename_ptr, NULL, line_ptr, NULL, | |
8148 | dwarf_debug_sections, 0, | |
8149 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
8150 | } |
8151 | ||
4ab527b0 FF |
8152 | /* After a call to bfd_find_nearest_line, successive calls to |
8153 | bfd_find_inliner_info can be used to get source information about | |
8154 | each level of function inlining that terminated at the address | |
8155 | passed to bfd_find_nearest_line. Currently this is only supported | |
8156 | for DWARF2 with appropriate DWARF3 extensions. */ | |
8157 | ||
8158 | bfd_boolean | |
8159 | _bfd_elf_find_inliner_info (bfd *abfd, | |
8160 | const char **filename_ptr, | |
8161 | const char **functionname_ptr, | |
8162 | unsigned int *line_ptr) | |
8163 | { | |
8164 | bfd_boolean found; | |
8165 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
8166 | functionname_ptr, line_ptr, | |
8167 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
8168 | return found; | |
8169 | } | |
8170 | ||
252b5132 | 8171 | int |
a6b96beb | 8172 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 8173 | { |
8ded5a0f AM |
8174 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
8175 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 8176 | |
a6b96beb | 8177 | if (!info->relocatable) |
8ded5a0f | 8178 | { |
12bd6957 | 8179 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 8180 | |
62d7a5f6 AM |
8181 | if (phdr_size == (bfd_size_type) -1) |
8182 | { | |
8183 | struct elf_segment_map *m; | |
8184 | ||
8185 | phdr_size = 0; | |
12bd6957 | 8186 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 8187 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 8188 | |
62d7a5f6 AM |
8189 | if (phdr_size == 0) |
8190 | phdr_size = get_program_header_size (abfd, info); | |
8191 | } | |
8ded5a0f | 8192 | |
12bd6957 | 8193 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
8194 | ret += phdr_size; |
8195 | } | |
8196 | ||
252b5132 RH |
8197 | return ret; |
8198 | } | |
8199 | ||
b34976b6 | 8200 | bfd_boolean |
217aa764 AM |
8201 | _bfd_elf_set_section_contents (bfd *abfd, |
8202 | sec_ptr section, | |
0f867abe | 8203 | const void *location, |
217aa764 AM |
8204 | file_ptr offset, |
8205 | bfd_size_type count) | |
252b5132 RH |
8206 | { |
8207 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 8208 | file_ptr pos; |
252b5132 RH |
8209 | |
8210 | if (! abfd->output_has_begun | |
217aa764 | 8211 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 8212 | return FALSE; |
252b5132 | 8213 | |
0ce398f1 L |
8214 | if (!count) |
8215 | return TRUE; | |
8216 | ||
252b5132 | 8217 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
8218 | if (hdr->sh_offset == (file_ptr) -1) |
8219 | { | |
8220 | /* We must compress this section. Write output to the buffer. */ | |
8221 | unsigned char *contents = hdr->contents; | |
8222 | if ((offset + count) > hdr->sh_size | |
8223 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
8224 | || contents == NULL) | |
8225 | abort (); | |
8226 | memcpy (contents + offset, location, count); | |
8227 | return TRUE; | |
8228 | } | |
dc810e39 AM |
8229 | pos = hdr->sh_offset + offset; |
8230 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
8231 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 8232 | return FALSE; |
252b5132 | 8233 | |
b34976b6 | 8234 | return TRUE; |
252b5132 RH |
8235 | } |
8236 | ||
8237 | void | |
217aa764 AM |
8238 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
8239 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
8240 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
8241 | { |
8242 | abort (); | |
8243 | } | |
8244 | ||
252b5132 RH |
8245 | /* Try to convert a non-ELF reloc into an ELF one. */ |
8246 | ||
b34976b6 | 8247 | bfd_boolean |
217aa764 | 8248 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 8249 | { |
c044fabd | 8250 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
8251 | |
8252 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
8253 | { | |
8254 | bfd_reloc_code_real_type code; | |
8255 | reloc_howto_type *howto; | |
8256 | ||
8257 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 8258 | equivalent ELF reloc. */ |
252b5132 RH |
8259 | |
8260 | if (areloc->howto->pc_relative) | |
8261 | { | |
8262 | switch (areloc->howto->bitsize) | |
8263 | { | |
8264 | case 8: | |
8265 | code = BFD_RELOC_8_PCREL; | |
8266 | break; | |
8267 | case 12: | |
8268 | code = BFD_RELOC_12_PCREL; | |
8269 | break; | |
8270 | case 16: | |
8271 | code = BFD_RELOC_16_PCREL; | |
8272 | break; | |
8273 | case 24: | |
8274 | code = BFD_RELOC_24_PCREL; | |
8275 | break; | |
8276 | case 32: | |
8277 | code = BFD_RELOC_32_PCREL; | |
8278 | break; | |
8279 | case 64: | |
8280 | code = BFD_RELOC_64_PCREL; | |
8281 | break; | |
8282 | default: | |
8283 | goto fail; | |
8284 | } | |
8285 | ||
8286 | howto = bfd_reloc_type_lookup (abfd, code); | |
8287 | ||
8288 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
8289 | { | |
8290 | if (howto->pcrel_offset) | |
8291 | areloc->addend += areloc->address; | |
8292 | else | |
8293 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
8294 | } | |
8295 | } | |
8296 | else | |
8297 | { | |
8298 | switch (areloc->howto->bitsize) | |
8299 | { | |
8300 | case 8: | |
8301 | code = BFD_RELOC_8; | |
8302 | break; | |
8303 | case 14: | |
8304 | code = BFD_RELOC_14; | |
8305 | break; | |
8306 | case 16: | |
8307 | code = BFD_RELOC_16; | |
8308 | break; | |
8309 | case 26: | |
8310 | code = BFD_RELOC_26; | |
8311 | break; | |
8312 | case 32: | |
8313 | code = BFD_RELOC_32; | |
8314 | break; | |
8315 | case 64: | |
8316 | code = BFD_RELOC_64; | |
8317 | break; | |
8318 | default: | |
8319 | goto fail; | |
8320 | } | |
8321 | ||
8322 | howto = bfd_reloc_type_lookup (abfd, code); | |
8323 | } | |
8324 | ||
8325 | if (howto) | |
8326 | areloc->howto = howto; | |
8327 | else | |
8328 | goto fail; | |
8329 | } | |
8330 | ||
b34976b6 | 8331 | return TRUE; |
252b5132 RH |
8332 | |
8333 | fail: | |
8334 | (*_bfd_error_handler) | |
d003868e AM |
8335 | (_("%B: unsupported relocation type %s"), |
8336 | abfd, areloc->howto->name); | |
252b5132 | 8337 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8338 | return FALSE; |
252b5132 RH |
8339 | } |
8340 | ||
b34976b6 | 8341 | bfd_boolean |
217aa764 | 8342 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 8343 | { |
d9071b0c TG |
8344 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
8345 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 8346 | { |
c0355132 | 8347 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 8348 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 8349 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
8350 | } |
8351 | ||
8352 | return _bfd_generic_close_and_cleanup (abfd); | |
8353 | } | |
8354 | ||
8355 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
8356 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
8357 | range-checking to interfere. There is nothing else to do in processing | |
8358 | this reloc. */ | |
8359 | ||
8360 | bfd_reloc_status_type | |
217aa764 AM |
8361 | _bfd_elf_rel_vtable_reloc_fn |
8362 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 8363 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
8364 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
8365 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
8366 | { |
8367 | return bfd_reloc_ok; | |
8368 | } | |
252b5132 RH |
8369 | \f |
8370 | /* Elf core file support. Much of this only works on native | |
8371 | toolchains, since we rely on knowing the | |
8372 | machine-dependent procfs structure in order to pick | |
c044fabd | 8373 | out details about the corefile. */ |
252b5132 RH |
8374 | |
8375 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
8376 | /* Needed for new procfs interface on sparc-solaris. */ |
8377 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
8378 | # include <sys/procfs.h> |
8379 | #endif | |
8380 | ||
261b8d08 PA |
8381 | /* Return a PID that identifies a "thread" for threaded cores, or the |
8382 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
8383 | |
8384 | static int | |
217aa764 | 8385 | elfcore_make_pid (bfd *abfd) |
252b5132 | 8386 | { |
261b8d08 PA |
8387 | int pid; |
8388 | ||
228e534f | 8389 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 8390 | if (pid == 0) |
228e534f | 8391 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
8392 | |
8393 | return pid; | |
252b5132 RH |
8394 | } |
8395 | ||
252b5132 RH |
8396 | /* If there isn't a section called NAME, make one, using |
8397 | data from SECT. Note, this function will generate a | |
8398 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 8399 | overwrite it. */ |
252b5132 | 8400 | |
b34976b6 | 8401 | static bfd_boolean |
217aa764 | 8402 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 8403 | { |
c044fabd | 8404 | asection *sect2; |
252b5132 RH |
8405 | |
8406 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 8407 | return TRUE; |
252b5132 | 8408 | |
117ed4f8 | 8409 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 8410 | if (sect2 == NULL) |
b34976b6 | 8411 | return FALSE; |
252b5132 | 8412 | |
eea6121a | 8413 | sect2->size = sect->size; |
252b5132 | 8414 | sect2->filepos = sect->filepos; |
252b5132 | 8415 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 8416 | return TRUE; |
252b5132 RH |
8417 | } |
8418 | ||
bb0082d6 AM |
8419 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
8420 | actually creates up to two pseudosections: | |
8421 | - For the single-threaded case, a section named NAME, unless | |
8422 | such a section already exists. | |
8423 | - For the multi-threaded case, a section named "NAME/PID", where | |
8424 | PID is elfcore_make_pid (abfd). | |
8425 | Both pseudosections have identical contents. */ | |
b34976b6 | 8426 | bfd_boolean |
217aa764 AM |
8427 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
8428 | char *name, | |
8429 | size_t size, | |
8430 | ufile_ptr filepos) | |
bb0082d6 AM |
8431 | { |
8432 | char buf[100]; | |
8433 | char *threaded_name; | |
d4c88bbb | 8434 | size_t len; |
bb0082d6 AM |
8435 | asection *sect; |
8436 | ||
8437 | /* Build the section name. */ | |
8438 | ||
8439 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 8440 | len = strlen (buf) + 1; |
a50b1753 | 8441 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 8442 | if (threaded_name == NULL) |
b34976b6 | 8443 | return FALSE; |
d4c88bbb | 8444 | memcpy (threaded_name, buf, len); |
bb0082d6 | 8445 | |
117ed4f8 AM |
8446 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
8447 | SEC_HAS_CONTENTS); | |
bb0082d6 | 8448 | if (sect == NULL) |
b34976b6 | 8449 | return FALSE; |
eea6121a | 8450 | sect->size = size; |
bb0082d6 | 8451 | sect->filepos = filepos; |
bb0082d6 AM |
8452 | sect->alignment_power = 2; |
8453 | ||
936e320b | 8454 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
8455 | } |
8456 | ||
252b5132 | 8457 | /* prstatus_t exists on: |
4a938328 | 8458 | solaris 2.5+ |
252b5132 RH |
8459 | linux 2.[01] + glibc |
8460 | unixware 4.2 | |
8461 | */ | |
8462 | ||
8463 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 8464 | |
b34976b6 | 8465 | static bfd_boolean |
217aa764 | 8466 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8467 | { |
eea6121a | 8468 | size_t size; |
7ee38065 | 8469 | int offset; |
252b5132 | 8470 | |
4a938328 MS |
8471 | if (note->descsz == sizeof (prstatus_t)) |
8472 | { | |
8473 | prstatus_t prstat; | |
252b5132 | 8474 | |
eea6121a | 8475 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8476 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 8477 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 8478 | |
fa49d224 NC |
8479 | /* Do not overwrite the core signal if it |
8480 | has already been set by another thread. */ | |
228e534f AM |
8481 | if (elf_tdata (abfd)->core->signal == 0) |
8482 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
8483 | if (elf_tdata (abfd)->core->pid == 0) | |
8484 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 8485 | |
4a938328 MS |
8486 | /* pr_who exists on: |
8487 | solaris 2.5+ | |
8488 | unixware 4.2 | |
8489 | pr_who doesn't exist on: | |
8490 | linux 2.[01] | |
8491 | */ | |
252b5132 | 8492 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 8493 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 8494 | #else |
228e534f | 8495 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 8496 | #endif |
4a938328 | 8497 | } |
7ee38065 | 8498 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
8499 | else if (note->descsz == sizeof (prstatus32_t)) |
8500 | { | |
8501 | /* 64-bit host, 32-bit corefile */ | |
8502 | prstatus32_t prstat; | |
8503 | ||
eea6121a | 8504 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8505 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
8506 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
8507 | ||
fa49d224 NC |
8508 | /* Do not overwrite the core signal if it |
8509 | has already been set by another thread. */ | |
228e534f AM |
8510 | if (elf_tdata (abfd)->core->signal == 0) |
8511 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
8512 | if (elf_tdata (abfd)->core->pid == 0) | |
8513 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
8514 | |
8515 | /* pr_who exists on: | |
8516 | solaris 2.5+ | |
8517 | unixware 4.2 | |
8518 | pr_who doesn't exist on: | |
8519 | linux 2.[01] | |
8520 | */ | |
7ee38065 | 8521 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 8522 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 8523 | #else |
228e534f | 8524 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
8525 | #endif |
8526 | } | |
7ee38065 | 8527 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
8528 | else |
8529 | { | |
8530 | /* Fail - we don't know how to handle any other | |
8531 | note size (ie. data object type). */ | |
b34976b6 | 8532 | return TRUE; |
4a938328 | 8533 | } |
252b5132 | 8534 | |
bb0082d6 | 8535 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 8536 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 8537 | size, note->descpos + offset); |
252b5132 RH |
8538 | } |
8539 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
8540 | ||
bb0082d6 | 8541 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 8542 | static bfd_boolean |
217aa764 AM |
8543 | elfcore_make_note_pseudosection (bfd *abfd, |
8544 | char *name, | |
8545 | Elf_Internal_Note *note) | |
252b5132 | 8546 | { |
936e320b AM |
8547 | return _bfd_elfcore_make_pseudosection (abfd, name, |
8548 | note->descsz, note->descpos); | |
252b5132 RH |
8549 | } |
8550 | ||
ff08c6bb JB |
8551 | /* There isn't a consistent prfpregset_t across platforms, |
8552 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
8553 | data structure apart. */ |
8554 | ||
b34976b6 | 8555 | static bfd_boolean |
217aa764 | 8556 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8557 | { |
8558 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8559 | } | |
8560 | ||
ff08c6bb | 8561 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 8562 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 8563 | literally. */ |
c044fabd | 8564 | |
b34976b6 | 8565 | static bfd_boolean |
217aa764 | 8566 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8567 | { |
8568 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8569 | } | |
8570 | ||
4339cae0 L |
8571 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
8572 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
8573 | contents literally. */ | |
8574 | ||
8575 | static bfd_boolean | |
8576 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
8577 | { | |
8578 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
8579 | } | |
8580 | ||
97753bd5 AM |
8581 | static bfd_boolean |
8582 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
8583 | { | |
8584 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
8585 | } | |
8586 | ||
89eeb0bc LM |
8587 | static bfd_boolean |
8588 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
8589 | { | |
8590 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
8591 | } | |
97753bd5 | 8592 | |
0675e188 UW |
8593 | static bfd_boolean |
8594 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
8595 | { | |
8596 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
8597 | } | |
8598 | ||
d7eeb400 MS |
8599 | static bfd_boolean |
8600 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
8601 | { | |
8602 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
8603 | } | |
8604 | ||
8605 | static bfd_boolean | |
8606 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
8607 | { | |
8608 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
8609 | } | |
8610 | ||
8611 | static bfd_boolean | |
8612 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
8613 | { | |
8614 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
8615 | } | |
8616 | ||
8617 | static bfd_boolean | |
8618 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
8619 | { | |
8620 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
8621 | } | |
8622 | ||
8623 | static bfd_boolean | |
8624 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
8625 | { | |
8626 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
8627 | } | |
8628 | ||
355b81d9 UW |
8629 | static bfd_boolean |
8630 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
8631 | { | |
8632 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
8633 | } | |
8634 | ||
8635 | static bfd_boolean | |
8636 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
8637 | { | |
8638 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
8639 | } | |
8640 | ||
abb3f6cc NC |
8641 | static bfd_boolean |
8642 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
8643 | { | |
8644 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
8645 | } | |
8646 | ||
4ef9f41a AA |
8647 | static bfd_boolean |
8648 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
8649 | { | |
8650 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
8651 | } | |
8652 | ||
8653 | static bfd_boolean | |
8654 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
8655 | { | |
8656 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
8657 | } | |
8658 | ||
faa9a424 UW |
8659 | static bfd_boolean |
8660 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
8661 | { | |
8662 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
8663 | } | |
8664 | ||
652451f8 YZ |
8665 | static bfd_boolean |
8666 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
8667 | { | |
8668 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
8669 | } | |
8670 | ||
8671 | static bfd_boolean | |
8672 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
8673 | { | |
8674 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
8675 | } | |
8676 | ||
8677 | static bfd_boolean | |
8678 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
8679 | { | |
8680 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
8681 | } | |
8682 | ||
252b5132 | 8683 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 8684 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 8685 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8686 | typedef prpsinfo32_t elfcore_psinfo32_t; |
8687 | #endif | |
252b5132 RH |
8688 | #endif |
8689 | ||
8690 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 8691 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 8692 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8693 | typedef psinfo32_t elfcore_psinfo32_t; |
8694 | #endif | |
252b5132 RH |
8695 | #endif |
8696 | ||
252b5132 RH |
8697 | /* return a malloc'ed copy of a string at START which is at |
8698 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 8699 | the copy will always have a terminating '\0'. */ |
252b5132 | 8700 | |
936e320b | 8701 | char * |
217aa764 | 8702 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 8703 | { |
dc810e39 | 8704 | char *dups; |
a50b1753 | 8705 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 8706 | size_t len; |
252b5132 RH |
8707 | |
8708 | if (end == NULL) | |
8709 | len = max; | |
8710 | else | |
8711 | len = end - start; | |
8712 | ||
a50b1753 | 8713 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 8714 | if (dups == NULL) |
252b5132 RH |
8715 | return NULL; |
8716 | ||
dc810e39 AM |
8717 | memcpy (dups, start, len); |
8718 | dups[len] = '\0'; | |
252b5132 | 8719 | |
dc810e39 | 8720 | return dups; |
252b5132 RH |
8721 | } |
8722 | ||
bb0082d6 | 8723 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 8724 | static bfd_boolean |
217aa764 | 8725 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8726 | { |
4a938328 MS |
8727 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
8728 | { | |
8729 | elfcore_psinfo_t psinfo; | |
252b5132 | 8730 | |
7ee38065 | 8731 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8732 | |
335e41d4 | 8733 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 8734 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 8735 | #endif |
228e534f | 8736 | elf_tdata (abfd)->core->program |
936e320b AM |
8737 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8738 | sizeof (psinfo.pr_fname)); | |
252b5132 | 8739 | |
228e534f | 8740 | elf_tdata (abfd)->core->command |
936e320b AM |
8741 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8742 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 8743 | } |
7ee38065 | 8744 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
8745 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
8746 | { | |
8747 | /* 64-bit host, 32-bit corefile */ | |
8748 | elfcore_psinfo32_t psinfo; | |
8749 | ||
7ee38065 | 8750 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8751 | |
335e41d4 | 8752 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 8753 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 8754 | #endif |
228e534f | 8755 | elf_tdata (abfd)->core->program |
936e320b AM |
8756 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8757 | sizeof (psinfo.pr_fname)); | |
4a938328 | 8758 | |
228e534f | 8759 | elf_tdata (abfd)->core->command |
936e320b AM |
8760 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8761 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
8762 | } |
8763 | #endif | |
8764 | ||
8765 | else | |
8766 | { | |
8767 | /* Fail - we don't know how to handle any other | |
8768 | note size (ie. data object type). */ | |
b34976b6 | 8769 | return TRUE; |
4a938328 | 8770 | } |
252b5132 RH |
8771 | |
8772 | /* Note that for some reason, a spurious space is tacked | |
8773 | onto the end of the args in some (at least one anyway) | |
c044fabd | 8774 | implementations, so strip it off if it exists. */ |
252b5132 RH |
8775 | |
8776 | { | |
228e534f | 8777 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
8778 | int n = strlen (command); |
8779 | ||
8780 | if (0 < n && command[n - 1] == ' ') | |
8781 | command[n - 1] = '\0'; | |
8782 | } | |
8783 | ||
b34976b6 | 8784 | return TRUE; |
252b5132 RH |
8785 | } |
8786 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
8787 | ||
252b5132 | 8788 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 8789 | static bfd_boolean |
217aa764 | 8790 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8791 | { |
f572a39d AM |
8792 | if (note->descsz == sizeof (pstatus_t) |
8793 | #if defined (HAVE_PXSTATUS_T) | |
8794 | || note->descsz == sizeof (pxstatus_t) | |
8795 | #endif | |
8796 | ) | |
4a938328 MS |
8797 | { |
8798 | pstatus_t pstat; | |
252b5132 | 8799 | |
4a938328 | 8800 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8801 | |
228e534f | 8802 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 8803 | } |
7ee38065 | 8804 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
8805 | else if (note->descsz == sizeof (pstatus32_t)) |
8806 | { | |
8807 | /* 64-bit host, 32-bit corefile */ | |
8808 | pstatus32_t pstat; | |
252b5132 | 8809 | |
4a938328 | 8810 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8811 | |
228e534f | 8812 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
8813 | } |
8814 | #endif | |
252b5132 RH |
8815 | /* Could grab some more details from the "representative" |
8816 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 8817 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 8818 | |
b34976b6 | 8819 | return TRUE; |
252b5132 RH |
8820 | } |
8821 | #endif /* defined (HAVE_PSTATUS_T) */ | |
8822 | ||
252b5132 | 8823 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 8824 | static bfd_boolean |
217aa764 | 8825 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
8826 | { |
8827 | lwpstatus_t lwpstat; | |
8828 | char buf[100]; | |
c044fabd | 8829 | char *name; |
d4c88bbb | 8830 | size_t len; |
c044fabd | 8831 | asection *sect; |
252b5132 | 8832 | |
f572a39d AM |
8833 | if (note->descsz != sizeof (lwpstat) |
8834 | #if defined (HAVE_LWPXSTATUS_T) | |
8835 | && note->descsz != sizeof (lwpxstatus_t) | |
8836 | #endif | |
8837 | ) | |
b34976b6 | 8838 | return TRUE; |
252b5132 RH |
8839 | |
8840 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
8841 | ||
228e534f | 8842 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
8843 | /* Do not overwrite the core signal if it has already been set by |
8844 | another thread. */ | |
228e534f AM |
8845 | if (elf_tdata (abfd)->core->signal == 0) |
8846 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 8847 | |
c044fabd | 8848 | /* Make a ".reg/999" section. */ |
252b5132 RH |
8849 | |
8850 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8851 | len = strlen (buf) + 1; |
217aa764 | 8852 | name = bfd_alloc (abfd, len); |
252b5132 | 8853 | if (name == NULL) |
b34976b6 | 8854 | return FALSE; |
d4c88bbb | 8855 | memcpy (name, buf, len); |
252b5132 | 8856 | |
117ed4f8 | 8857 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8858 | if (sect == NULL) |
b34976b6 | 8859 | return FALSE; |
252b5132 RH |
8860 | |
8861 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8862 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
8863 | sect->filepos = note->descpos |
8864 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
8865 | #endif | |
8866 | ||
8867 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 8868 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
8869 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
8870 | #endif | |
8871 | ||
252b5132 RH |
8872 | sect->alignment_power = 2; |
8873 | ||
8874 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 8875 | return FALSE; |
252b5132 RH |
8876 | |
8877 | /* Make a ".reg2/999" section */ | |
8878 | ||
8879 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8880 | len = strlen (buf) + 1; |
217aa764 | 8881 | name = bfd_alloc (abfd, len); |
252b5132 | 8882 | if (name == NULL) |
b34976b6 | 8883 | return FALSE; |
d4c88bbb | 8884 | memcpy (name, buf, len); |
252b5132 | 8885 | |
117ed4f8 | 8886 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8887 | if (sect == NULL) |
b34976b6 | 8888 | return FALSE; |
252b5132 RH |
8889 | |
8890 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8891 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
8892 | sect->filepos = note->descpos |
8893 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
8894 | #endif | |
8895 | ||
8896 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 8897 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
8898 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
8899 | #endif | |
8900 | ||
252b5132 RH |
8901 | sect->alignment_power = 2; |
8902 | ||
936e320b | 8903 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
8904 | } |
8905 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
8906 | ||
b34976b6 | 8907 | static bfd_boolean |
217aa764 | 8908 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
8909 | { |
8910 | char buf[30]; | |
c044fabd | 8911 | char *name; |
d4c88bbb | 8912 | size_t len; |
c044fabd | 8913 | asection *sect; |
4a6636fb PA |
8914 | int type; |
8915 | int is_active_thread; | |
8916 | bfd_vma base_addr; | |
16e9c715 | 8917 | |
4a6636fb | 8918 | if (note->descsz < 728) |
b34976b6 | 8919 | return TRUE; |
16e9c715 | 8920 | |
4a6636fb PA |
8921 | if (! CONST_STRNEQ (note->namedata, "win32")) |
8922 | return TRUE; | |
8923 | ||
8924 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 8925 | |
4a6636fb | 8926 | switch (type) |
16e9c715 | 8927 | { |
4a6636fb | 8928 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 8929 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 8930 | /* process_info.pid */ |
228e534f | 8931 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 8932 | /* process_info.signal */ |
228e534f | 8933 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 8934 | break; |
16e9c715 | 8935 | |
4a6636fb | 8936 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 8937 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
8938 | /* thread_info.tid */ |
8939 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 8940 | |
d4c88bbb | 8941 | len = strlen (buf) + 1; |
a50b1753 | 8942 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8943 | if (name == NULL) |
b34976b6 | 8944 | return FALSE; |
c044fabd | 8945 | |
d4c88bbb | 8946 | memcpy (name, buf, len); |
16e9c715 | 8947 | |
117ed4f8 | 8948 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 8949 | if (sect == NULL) |
b34976b6 | 8950 | return FALSE; |
c044fabd | 8951 | |
4a6636fb PA |
8952 | /* sizeof (thread_info.thread_context) */ |
8953 | sect->size = 716; | |
8954 | /* offsetof (thread_info.thread_context) */ | |
8955 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
8956 | sect->alignment_power = 2; |
8957 | ||
4a6636fb PA |
8958 | /* thread_info.is_active_thread */ |
8959 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
8960 | ||
8961 | if (is_active_thread) | |
16e9c715 | 8962 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 8963 | return FALSE; |
16e9c715 NC |
8964 | break; |
8965 | ||
4a6636fb | 8966 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 8967 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
8968 | /* module_info.base_address */ |
8969 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 8970 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 8971 | |
d4c88bbb | 8972 | len = strlen (buf) + 1; |
a50b1753 | 8973 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8974 | if (name == NULL) |
b34976b6 | 8975 | return FALSE; |
c044fabd | 8976 | |
d4c88bbb | 8977 | memcpy (name, buf, len); |
252b5132 | 8978 | |
117ed4f8 | 8979 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 8980 | |
16e9c715 | 8981 | if (sect == NULL) |
b34976b6 | 8982 | return FALSE; |
c044fabd | 8983 | |
eea6121a | 8984 | sect->size = note->descsz; |
16e9c715 | 8985 | sect->filepos = note->descpos; |
16e9c715 NC |
8986 | sect->alignment_power = 2; |
8987 | break; | |
8988 | ||
8989 | default: | |
b34976b6 | 8990 | return TRUE; |
16e9c715 NC |
8991 | } |
8992 | ||
b34976b6 | 8993 | return TRUE; |
16e9c715 | 8994 | } |
252b5132 | 8995 | |
b34976b6 | 8996 | static bfd_boolean |
217aa764 | 8997 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8998 | { |
9c5bfbb7 | 8999 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 9000 | |
252b5132 RH |
9001 | switch (note->type) |
9002 | { | |
9003 | default: | |
b34976b6 | 9004 | return TRUE; |
252b5132 | 9005 | |
252b5132 | 9006 | case NT_PRSTATUS: |
bb0082d6 AM |
9007 | if (bed->elf_backend_grok_prstatus) |
9008 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 9009 | return TRUE; |
bb0082d6 | 9010 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 9011 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 9012 | #else |
b34976b6 | 9013 | return TRUE; |
252b5132 RH |
9014 | #endif |
9015 | ||
9016 | #if defined (HAVE_PSTATUS_T) | |
9017 | case NT_PSTATUS: | |
9018 | return elfcore_grok_pstatus (abfd, note); | |
9019 | #endif | |
9020 | ||
9021 | #if defined (HAVE_LWPSTATUS_T) | |
9022 | case NT_LWPSTATUS: | |
9023 | return elfcore_grok_lwpstatus (abfd, note); | |
9024 | #endif | |
9025 | ||
9026 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
9027 | return elfcore_grok_prfpreg (abfd, note); | |
9028 | ||
c044fabd | 9029 | case NT_WIN32PSTATUS: |
16e9c715 | 9030 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 9031 | |
c044fabd | 9032 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
9033 | if (note->namesz == 6 |
9034 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
9035 | return elfcore_grok_prxfpreg (abfd, note); |
9036 | else | |
b34976b6 | 9037 | return TRUE; |
ff08c6bb | 9038 | |
4339cae0 L |
9039 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
9040 | if (note->namesz == 6 | |
9041 | && strcmp (note->namedata, "LINUX") == 0) | |
9042 | return elfcore_grok_xstatereg (abfd, note); | |
97de3545 JB |
9043 | else if (note->namesz == 8 |
9044 | && strcmp (note->namedata, "FreeBSD") == 0) | |
9045 | return elfcore_grok_xstatereg (abfd, note); | |
4339cae0 L |
9046 | else |
9047 | return TRUE; | |
9048 | ||
97753bd5 AM |
9049 | case NT_PPC_VMX: |
9050 | if (note->namesz == 6 | |
9051 | && strcmp (note->namedata, "LINUX") == 0) | |
9052 | return elfcore_grok_ppc_vmx (abfd, note); | |
9053 | else | |
9054 | return TRUE; | |
9055 | ||
89eeb0bc LM |
9056 | case NT_PPC_VSX: |
9057 | if (note->namesz == 6 | |
9058 | && strcmp (note->namedata, "LINUX") == 0) | |
9059 | return elfcore_grok_ppc_vsx (abfd, note); | |
9060 | else | |
9061 | return TRUE; | |
9062 | ||
0675e188 UW |
9063 | case NT_S390_HIGH_GPRS: |
9064 | if (note->namesz == 6 | |
9065 | && strcmp (note->namedata, "LINUX") == 0) | |
9066 | return elfcore_grok_s390_high_gprs (abfd, note); | |
9067 | else | |
9068 | return TRUE; | |
9069 | ||
d7eeb400 MS |
9070 | case NT_S390_TIMER: |
9071 | if (note->namesz == 6 | |
9072 | && strcmp (note->namedata, "LINUX") == 0) | |
9073 | return elfcore_grok_s390_timer (abfd, note); | |
9074 | else | |
9075 | return TRUE; | |
9076 | ||
9077 | case NT_S390_TODCMP: | |
9078 | if (note->namesz == 6 | |
9079 | && strcmp (note->namedata, "LINUX") == 0) | |
9080 | return elfcore_grok_s390_todcmp (abfd, note); | |
9081 | else | |
9082 | return TRUE; | |
9083 | ||
9084 | case NT_S390_TODPREG: | |
9085 | if (note->namesz == 6 | |
9086 | && strcmp (note->namedata, "LINUX") == 0) | |
9087 | return elfcore_grok_s390_todpreg (abfd, note); | |
9088 | else | |
9089 | return TRUE; | |
9090 | ||
9091 | case NT_S390_CTRS: | |
9092 | if (note->namesz == 6 | |
9093 | && strcmp (note->namedata, "LINUX") == 0) | |
9094 | return elfcore_grok_s390_ctrs (abfd, note); | |
9095 | else | |
9096 | return TRUE; | |
9097 | ||
9098 | case NT_S390_PREFIX: | |
9099 | if (note->namesz == 6 | |
9100 | && strcmp (note->namedata, "LINUX") == 0) | |
9101 | return elfcore_grok_s390_prefix (abfd, note); | |
9102 | else | |
9103 | return TRUE; | |
9104 | ||
355b81d9 UW |
9105 | case NT_S390_LAST_BREAK: |
9106 | if (note->namesz == 6 | |
9107 | && strcmp (note->namedata, "LINUX") == 0) | |
9108 | return elfcore_grok_s390_last_break (abfd, note); | |
9109 | else | |
9110 | return TRUE; | |
9111 | ||
9112 | case NT_S390_SYSTEM_CALL: | |
9113 | if (note->namesz == 6 | |
9114 | && strcmp (note->namedata, "LINUX") == 0) | |
9115 | return elfcore_grok_s390_system_call (abfd, note); | |
9116 | else | |
9117 | return TRUE; | |
9118 | ||
abb3f6cc NC |
9119 | case NT_S390_TDB: |
9120 | if (note->namesz == 6 | |
9121 | && strcmp (note->namedata, "LINUX") == 0) | |
9122 | return elfcore_grok_s390_tdb (abfd, note); | |
9123 | else | |
9124 | return TRUE; | |
9125 | ||
4ef9f41a AA |
9126 | case NT_S390_VXRS_LOW: |
9127 | if (note->namesz == 6 | |
9128 | && strcmp (note->namedata, "LINUX") == 0) | |
9129 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
9130 | else | |
9131 | return TRUE; | |
9132 | ||
9133 | case NT_S390_VXRS_HIGH: | |
9134 | if (note->namesz == 6 | |
9135 | && strcmp (note->namedata, "LINUX") == 0) | |
9136 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
9137 | else | |
9138 | return TRUE; | |
9139 | ||
faa9a424 UW |
9140 | case NT_ARM_VFP: |
9141 | if (note->namesz == 6 | |
9142 | && strcmp (note->namedata, "LINUX") == 0) | |
9143 | return elfcore_grok_arm_vfp (abfd, note); | |
9144 | else | |
9145 | return TRUE; | |
9146 | ||
652451f8 YZ |
9147 | case NT_ARM_TLS: |
9148 | if (note->namesz == 6 | |
9149 | && strcmp (note->namedata, "LINUX") == 0) | |
9150 | return elfcore_grok_aarch_tls (abfd, note); | |
9151 | else | |
9152 | return TRUE; | |
9153 | ||
9154 | case NT_ARM_HW_BREAK: | |
9155 | if (note->namesz == 6 | |
9156 | && strcmp (note->namedata, "LINUX") == 0) | |
9157 | return elfcore_grok_aarch_hw_break (abfd, note); | |
9158 | else | |
9159 | return TRUE; | |
9160 | ||
9161 | case NT_ARM_HW_WATCH: | |
9162 | if (note->namesz == 6 | |
9163 | && strcmp (note->namedata, "LINUX") == 0) | |
9164 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
9165 | else | |
9166 | return TRUE; | |
9167 | ||
252b5132 RH |
9168 | case NT_PRPSINFO: |
9169 | case NT_PSINFO: | |
bb0082d6 AM |
9170 | if (bed->elf_backend_grok_psinfo) |
9171 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 9172 | return TRUE; |
bb0082d6 | 9173 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 9174 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 9175 | #else |
b34976b6 | 9176 | return TRUE; |
252b5132 | 9177 | #endif |
3333a7c3 RM |
9178 | |
9179 | case NT_AUXV: | |
9180 | { | |
117ed4f8 AM |
9181 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
9182 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
9183 | |
9184 | if (sect == NULL) | |
9185 | return FALSE; | |
eea6121a | 9186 | sect->size = note->descsz; |
3333a7c3 | 9187 | sect->filepos = note->descpos; |
3333a7c3 RM |
9188 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
9189 | ||
9190 | return TRUE; | |
9191 | } | |
9015683b | 9192 | |
451b7c33 TT |
9193 | case NT_FILE: |
9194 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
9195 | note); | |
9196 | ||
9015683b TT |
9197 | case NT_SIGINFO: |
9198 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
9199 | note); | |
252b5132 RH |
9200 | } |
9201 | } | |
9202 | ||
718175fa JK |
9203 | static bfd_boolean |
9204 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
9205 | { | |
c74f7d1c | 9206 | struct bfd_build_id* build_id; |
30e8ee25 AM |
9207 | |
9208 | if (note->descsz == 0) | |
9209 | return FALSE; | |
9210 | ||
c74f7d1c JT |
9211 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
9212 | if (build_id == NULL) | |
718175fa JK |
9213 | return FALSE; |
9214 | ||
c74f7d1c JT |
9215 | build_id->size = note->descsz; |
9216 | memcpy (build_id->data, note->descdata, note->descsz); | |
9217 | abfd->build_id = build_id; | |
718175fa JK |
9218 | |
9219 | return TRUE; | |
9220 | } | |
9221 | ||
9222 | static bfd_boolean | |
9223 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
9224 | { | |
9225 | switch (note->type) | |
9226 | { | |
9227 | default: | |
9228 | return TRUE; | |
9229 | ||
9230 | case NT_GNU_BUILD_ID: | |
9231 | return elfobj_grok_gnu_build_id (abfd, note); | |
9232 | } | |
9233 | } | |
9234 | ||
e21e5835 NC |
9235 | static bfd_boolean |
9236 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
9237 | { | |
9238 | struct sdt_note *cur = | |
9239 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
9240 | + note->descsz); | |
9241 | ||
9242 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
9243 | cur->size = (bfd_size_type) note->descsz; | |
9244 | memcpy (cur->data, note->descdata, note->descsz); | |
9245 | ||
9246 | elf_tdata (abfd)->sdt_note_head = cur; | |
9247 | ||
9248 | return TRUE; | |
9249 | } | |
9250 | ||
9251 | static bfd_boolean | |
9252 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
9253 | { | |
9254 | switch (note->type) | |
9255 | { | |
9256 | case NT_STAPSDT: | |
9257 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
9258 | ||
9259 | default: | |
9260 | return TRUE; | |
9261 | } | |
9262 | } | |
9263 | ||
b34976b6 | 9264 | static bfd_boolean |
217aa764 | 9265 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
9266 | { |
9267 | char *cp; | |
9268 | ||
9269 | cp = strchr (note->namedata, '@'); | |
9270 | if (cp != NULL) | |
9271 | { | |
d2b64500 | 9272 | *lwpidp = atoi(cp + 1); |
b34976b6 | 9273 | return TRUE; |
50b2bdb7 | 9274 | } |
b34976b6 | 9275 | return FALSE; |
50b2bdb7 AM |
9276 | } |
9277 | ||
b34976b6 | 9278 | static bfd_boolean |
217aa764 | 9279 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 9280 | { |
50b2bdb7 | 9281 | /* Signal number at offset 0x08. */ |
228e534f | 9282 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
9283 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
9284 | ||
9285 | /* Process ID at offset 0x50. */ | |
228e534f | 9286 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
9287 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
9288 | ||
9289 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 9290 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
9291 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
9292 | ||
7720ba9f MK |
9293 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
9294 | note); | |
50b2bdb7 AM |
9295 | } |
9296 | ||
b34976b6 | 9297 | static bfd_boolean |
217aa764 | 9298 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
9299 | { |
9300 | int lwp; | |
9301 | ||
9302 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 9303 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 9304 | |
b4db1224 | 9305 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
9306 | { |
9307 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
9308 | find this note before any of the others, which is fine, |
9309 | since the kernel writes this note out first when it | |
9310 | creates a core file. */ | |
47d9a591 | 9311 | |
50b2bdb7 AM |
9312 | return elfcore_grok_netbsd_procinfo (abfd, note); |
9313 | } | |
9314 | ||
b4db1224 JT |
9315 | /* As of Jan 2002 there are no other machine-independent notes |
9316 | defined for NetBSD core files. If the note type is less | |
9317 | than the start of the machine-dependent note types, we don't | |
9318 | understand it. */ | |
47d9a591 | 9319 | |
b4db1224 | 9320 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 9321 | return TRUE; |
50b2bdb7 AM |
9322 | |
9323 | ||
9324 | switch (bfd_get_arch (abfd)) | |
9325 | { | |
08a40648 AM |
9326 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
9327 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
9328 | |
9329 | case bfd_arch_alpha: | |
9330 | case bfd_arch_sparc: | |
9331 | switch (note->type) | |
08a40648 AM |
9332 | { |
9333 | case NT_NETBSDCORE_FIRSTMACH+0: | |
9334 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 9335 | |
08a40648 AM |
9336 | case NT_NETBSDCORE_FIRSTMACH+2: |
9337 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 9338 | |
08a40648 AM |
9339 | default: |
9340 | return TRUE; | |
9341 | } | |
50b2bdb7 | 9342 | |
08a40648 AM |
9343 | /* On all other arch's, PT_GETREGS == mach+1 and |
9344 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
9345 | |
9346 | default: | |
9347 | switch (note->type) | |
08a40648 AM |
9348 | { |
9349 | case NT_NETBSDCORE_FIRSTMACH+1: | |
9350 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 9351 | |
08a40648 AM |
9352 | case NT_NETBSDCORE_FIRSTMACH+3: |
9353 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 9354 | |
08a40648 AM |
9355 | default: |
9356 | return TRUE; | |
9357 | } | |
50b2bdb7 AM |
9358 | } |
9359 | /* NOTREACHED */ | |
9360 | } | |
9361 | ||
67cc5033 MK |
9362 | static bfd_boolean |
9363 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
9364 | { | |
9365 | /* Signal number at offset 0x08. */ | |
228e534f | 9366 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
9367 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
9368 | ||
9369 | /* Process ID at offset 0x20. */ | |
228e534f | 9370 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
9371 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
9372 | ||
9373 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 9374 | elf_tdata (abfd)->core->command |
67cc5033 MK |
9375 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
9376 | ||
9377 | return TRUE; | |
9378 | } | |
9379 | ||
9380 | static bfd_boolean | |
9381 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
9382 | { | |
9383 | if (note->type == NT_OPENBSD_PROCINFO) | |
9384 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
9385 | ||
9386 | if (note->type == NT_OPENBSD_REGS) | |
9387 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
9388 | ||
9389 | if (note->type == NT_OPENBSD_FPREGS) | |
9390 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9391 | ||
9392 | if (note->type == NT_OPENBSD_XFPREGS) | |
9393 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9394 | ||
9395 | if (note->type == NT_OPENBSD_AUXV) | |
9396 | { | |
9397 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9398 | SEC_HAS_CONTENTS); | |
9399 | ||
9400 | if (sect == NULL) | |
9401 | return FALSE; | |
9402 | sect->size = note->descsz; | |
9403 | sect->filepos = note->descpos; | |
9404 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9405 | ||
9406 | return TRUE; | |
9407 | } | |
9408 | ||
9409 | if (note->type == NT_OPENBSD_WCOOKIE) | |
9410 | { | |
9411 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
9412 | SEC_HAS_CONTENTS); | |
9413 | ||
9414 | if (sect == NULL) | |
9415 | return FALSE; | |
9416 | sect->size = note->descsz; | |
9417 | sect->filepos = note->descpos; | |
9418 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9419 | ||
9420 | return TRUE; | |
9421 | } | |
9422 | ||
9423 | return TRUE; | |
9424 | } | |
9425 | ||
07c6e936 | 9426 | static bfd_boolean |
d3fd4074 | 9427 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
9428 | { |
9429 | void *ddata = note->descdata; | |
9430 | char buf[100]; | |
9431 | char *name; | |
9432 | asection *sect; | |
f8843e87 AM |
9433 | short sig; |
9434 | unsigned flags; | |
07c6e936 NC |
9435 | |
9436 | /* nto_procfs_status 'pid' field is at offset 0. */ | |
228e534f | 9437 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 9438 | |
f8843e87 AM |
9439 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
9440 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
9441 | ||
9442 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
9443 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
9444 | |
9445 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
9446 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
9447 | { | |
228e534f AM |
9448 | elf_tdata (abfd)->core->signal = sig; |
9449 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 9450 | } |
07c6e936 | 9451 | |
f8843e87 AM |
9452 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
9453 | do not come from signals so we make sure we set the current | |
9454 | thread just in case. */ | |
9455 | if (flags & 0x00000080) | |
228e534f | 9456 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
9457 | |
9458 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 9459 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 9460 | |
a50b1753 | 9461 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
9462 | if (name == NULL) |
9463 | return FALSE; | |
9464 | strcpy (name, buf); | |
9465 | ||
117ed4f8 | 9466 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
9467 | if (sect == NULL) |
9468 | return FALSE; | |
9469 | ||
eea6121a | 9470 | sect->size = note->descsz; |
07c6e936 | 9471 | sect->filepos = note->descpos; |
07c6e936 NC |
9472 | sect->alignment_power = 2; |
9473 | ||
9474 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
9475 | } | |
9476 | ||
9477 | static bfd_boolean | |
d69f560c KW |
9478 | elfcore_grok_nto_regs (bfd *abfd, |
9479 | Elf_Internal_Note *note, | |
d3fd4074 | 9480 | long tid, |
d69f560c | 9481 | char *base) |
07c6e936 NC |
9482 | { |
9483 | char buf[100]; | |
9484 | char *name; | |
9485 | asection *sect; | |
9486 | ||
d69f560c | 9487 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 9488 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 9489 | |
a50b1753 | 9490 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
9491 | if (name == NULL) |
9492 | return FALSE; | |
9493 | strcpy (name, buf); | |
9494 | ||
117ed4f8 | 9495 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
9496 | if (sect == NULL) |
9497 | return FALSE; | |
9498 | ||
eea6121a | 9499 | sect->size = note->descsz; |
07c6e936 | 9500 | sect->filepos = note->descpos; |
07c6e936 NC |
9501 | sect->alignment_power = 2; |
9502 | ||
f8843e87 | 9503 | /* This is the current thread. */ |
228e534f | 9504 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 9505 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
9506 | |
9507 | return TRUE; | |
07c6e936 NC |
9508 | } |
9509 | ||
9510 | #define BFD_QNT_CORE_INFO 7 | |
9511 | #define BFD_QNT_CORE_STATUS 8 | |
9512 | #define BFD_QNT_CORE_GREG 9 | |
9513 | #define BFD_QNT_CORE_FPREG 10 | |
9514 | ||
9515 | static bfd_boolean | |
217aa764 | 9516 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
9517 | { |
9518 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 9519 | tid from the previous call to pass down to the next gregs |
07c6e936 | 9520 | function. */ |
d3fd4074 | 9521 | static long tid = 1; |
07c6e936 NC |
9522 | |
9523 | switch (note->type) | |
9524 | { | |
d69f560c KW |
9525 | case BFD_QNT_CORE_INFO: |
9526 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
9527 | case BFD_QNT_CORE_STATUS: | |
9528 | return elfcore_grok_nto_status (abfd, note, &tid); | |
9529 | case BFD_QNT_CORE_GREG: | |
9530 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
9531 | case BFD_QNT_CORE_FPREG: | |
9532 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
9533 | default: | |
9534 | return TRUE; | |
07c6e936 NC |
9535 | } |
9536 | } | |
9537 | ||
b15fa79e AM |
9538 | static bfd_boolean |
9539 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
9540 | { | |
9541 | char *name; | |
9542 | asection *sect; | |
9543 | size_t len; | |
9544 | ||
9545 | /* Use note name as section name. */ | |
9546 | len = note->namesz; | |
a50b1753 | 9547 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
9548 | if (name == NULL) |
9549 | return FALSE; | |
9550 | memcpy (name, note->namedata, len); | |
9551 | name[len - 1] = '\0'; | |
9552 | ||
9553 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
9554 | if (sect == NULL) | |
9555 | return FALSE; | |
9556 | ||
9557 | sect->size = note->descsz; | |
9558 | sect->filepos = note->descpos; | |
9559 | sect->alignment_power = 1; | |
9560 | ||
9561 | return TRUE; | |
9562 | } | |
9563 | ||
7c76fa91 MS |
9564 | /* Function: elfcore_write_note |
9565 | ||
47d9a591 | 9566 | Inputs: |
a39f3346 | 9567 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
9568 | name of note |
9569 | type of note | |
9570 | data for note | |
9571 | size of data for note | |
9572 | ||
a39f3346 AM |
9573 | Writes note to end of buffer. ELF64 notes are written exactly as |
9574 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
9575 | that they ought to have 8-byte namesz and descsz field, and have | |
9576 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
9577 | ||
7c76fa91 | 9578 | Return: |
a39f3346 | 9579 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
9580 | |
9581 | char * | |
a39f3346 | 9582 | elfcore_write_note (bfd *abfd, |
217aa764 | 9583 | char *buf, |
a39f3346 | 9584 | int *bufsiz, |
217aa764 | 9585 | const char *name, |
a39f3346 | 9586 | int type, |
217aa764 | 9587 | const void *input, |
a39f3346 | 9588 | int size) |
7c76fa91 MS |
9589 | { |
9590 | Elf_External_Note *xnp; | |
d4c88bbb | 9591 | size_t namesz; |
d4c88bbb | 9592 | size_t newspace; |
a39f3346 | 9593 | char *dest; |
7c76fa91 | 9594 | |
d4c88bbb | 9595 | namesz = 0; |
d4c88bbb | 9596 | if (name != NULL) |
a39f3346 | 9597 | namesz = strlen (name) + 1; |
d4c88bbb | 9598 | |
a39f3346 | 9599 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 9600 | |
a50b1753 | 9601 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
9602 | if (buf == NULL) |
9603 | return buf; | |
a39f3346 | 9604 | dest = buf + *bufsiz; |
7c76fa91 MS |
9605 | *bufsiz += newspace; |
9606 | xnp = (Elf_External_Note *) dest; | |
9607 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
9608 | H_PUT_32 (abfd, size, xnp->descsz); | |
9609 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
9610 | dest = xnp->name; |
9611 | if (name != NULL) | |
9612 | { | |
9613 | memcpy (dest, name, namesz); | |
9614 | dest += namesz; | |
a39f3346 | 9615 | while (namesz & 3) |
d4c88bbb AM |
9616 | { |
9617 | *dest++ = '\0'; | |
a39f3346 | 9618 | ++namesz; |
d4c88bbb AM |
9619 | } |
9620 | } | |
9621 | memcpy (dest, input, size); | |
a39f3346 AM |
9622 | dest += size; |
9623 | while (size & 3) | |
9624 | { | |
9625 | *dest++ = '\0'; | |
9626 | ++size; | |
9627 | } | |
9628 | return buf; | |
7c76fa91 MS |
9629 | } |
9630 | ||
7c76fa91 | 9631 | char * |
217aa764 AM |
9632 | elfcore_write_prpsinfo (bfd *abfd, |
9633 | char *buf, | |
9634 | int *bufsiz, | |
9635 | const char *fname, | |
9636 | const char *psargs) | |
7c76fa91 | 9637 | { |
183e98be AM |
9638 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9639 | ||
9640 | if (bed->elf_backend_write_core_note != NULL) | |
9641 | { | |
9642 | char *ret; | |
9643 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9644 | NT_PRPSINFO, fname, psargs); | |
9645 | if (ret != NULL) | |
9646 | return ret; | |
9647 | } | |
7c76fa91 | 9648 | |
1f20dca5 | 9649 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
183e98be AM |
9650 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
9651 | if (bed->s->elfclass == ELFCLASS32) | |
9652 | { | |
9653 | #if defined (HAVE_PSINFO32_T) | |
9654 | psinfo32_t data; | |
9655 | int note_type = NT_PSINFO; | |
9656 | #else | |
9657 | prpsinfo32_t data; | |
9658 | int note_type = NT_PRPSINFO; | |
9659 | #endif | |
9660 | ||
9661 | memset (&data, 0, sizeof (data)); | |
9662 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9663 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9664 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9665 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
9666 | } |
9667 | else | |
9668 | #endif | |
9669 | { | |
7c76fa91 | 9670 | #if defined (HAVE_PSINFO_T) |
183e98be AM |
9671 | psinfo_t data; |
9672 | int note_type = NT_PSINFO; | |
7c76fa91 | 9673 | #else |
183e98be AM |
9674 | prpsinfo_t data; |
9675 | int note_type = NT_PRPSINFO; | |
7c76fa91 MS |
9676 | #endif |
9677 | ||
183e98be AM |
9678 | memset (&data, 0, sizeof (data)); |
9679 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9680 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9681 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9682 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 9683 | } |
7c76fa91 MS |
9684 | #endif /* PSINFO_T or PRPSINFO_T */ |
9685 | ||
1f20dca5 UW |
9686 | free (buf); |
9687 | return NULL; | |
9688 | } | |
9689 | ||
70a38d42 SDJ |
9690 | char * |
9691 | elfcore_write_linux_prpsinfo32 | |
9692 | (bfd *abfd, char *buf, int *bufsiz, | |
9693 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
9694 | { | |
9695 | struct elf_external_linux_prpsinfo32 data; | |
9696 | ||
9697 | memset (&data, 0, sizeof (data)); | |
9698 | LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data); | |
9699 | ||
9700 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
9701 | &data, sizeof (data)); | |
9702 | } | |
9703 | ||
9704 | char * | |
9705 | elfcore_write_linux_prpsinfo64 | |
9706 | (bfd *abfd, char *buf, int *bufsiz, | |
9707 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
9708 | { | |
9709 | struct elf_external_linux_prpsinfo64 data; | |
9710 | ||
9711 | memset (&data, 0, sizeof (data)); | |
9712 | LINUX_PRPSINFO64_SWAP_FIELDS (abfd, prpsinfo, data); | |
9713 | ||
9714 | return elfcore_write_note (abfd, buf, bufsiz, | |
9715 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
9716 | } | |
9717 | ||
7c76fa91 | 9718 | char * |
217aa764 AM |
9719 | elfcore_write_prstatus (bfd *abfd, |
9720 | char *buf, | |
9721 | int *bufsiz, | |
9722 | long pid, | |
9723 | int cursig, | |
9724 | const void *gregs) | |
7c76fa91 | 9725 | { |
183e98be | 9726 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 9727 | |
183e98be AM |
9728 | if (bed->elf_backend_write_core_note != NULL) |
9729 | { | |
9730 | char *ret; | |
9731 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9732 | NT_PRSTATUS, | |
9733 | pid, cursig, gregs); | |
9734 | if (ret != NULL) | |
9735 | return ret; | |
9736 | } | |
9737 | ||
1f20dca5 | 9738 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
9739 | #if defined (HAVE_PRSTATUS32_T) |
9740 | if (bed->s->elfclass == ELFCLASS32) | |
9741 | { | |
9742 | prstatus32_t prstat; | |
9743 | ||
9744 | memset (&prstat, 0, sizeof (prstat)); | |
9745 | prstat.pr_pid = pid; | |
9746 | prstat.pr_cursig = cursig; | |
9747 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9748 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9749 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9750 | } | |
9751 | else | |
9752 | #endif | |
9753 | { | |
9754 | prstatus_t prstat; | |
9755 | ||
9756 | memset (&prstat, 0, sizeof (prstat)); | |
9757 | prstat.pr_pid = pid; | |
9758 | prstat.pr_cursig = cursig; | |
9759 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9760 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9761 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9762 | } | |
7c76fa91 MS |
9763 | #endif /* HAVE_PRSTATUS_T */ |
9764 | ||
1f20dca5 UW |
9765 | free (buf); |
9766 | return NULL; | |
9767 | } | |
9768 | ||
51316059 MS |
9769 | #if defined (HAVE_LWPSTATUS_T) |
9770 | char * | |
217aa764 AM |
9771 | elfcore_write_lwpstatus (bfd *abfd, |
9772 | char *buf, | |
9773 | int *bufsiz, | |
9774 | long pid, | |
9775 | int cursig, | |
9776 | const void *gregs) | |
51316059 MS |
9777 | { |
9778 | lwpstatus_t lwpstat; | |
183e98be | 9779 | const char *note_name = "CORE"; |
51316059 MS |
9780 | |
9781 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
9782 | lwpstat.pr_lwpid = pid >> 16; | |
9783 | lwpstat.pr_cursig = cursig; | |
9784 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 9785 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
9786 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
9787 | #if !defined(gregs) | |
9788 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
9789 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
9790 | #else | |
9791 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
9792 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
9793 | #endif | |
9794 | #endif | |
47d9a591 | 9795 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
9796 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
9797 | } | |
9798 | #endif /* HAVE_LWPSTATUS_T */ | |
9799 | ||
7c76fa91 MS |
9800 | #if defined (HAVE_PSTATUS_T) |
9801 | char * | |
217aa764 AM |
9802 | elfcore_write_pstatus (bfd *abfd, |
9803 | char *buf, | |
9804 | int *bufsiz, | |
9805 | long pid, | |
6c10990d NC |
9806 | int cursig ATTRIBUTE_UNUSED, |
9807 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 9808 | { |
183e98be AM |
9809 | const char *note_name = "CORE"; |
9810 | #if defined (HAVE_PSTATUS32_T) | |
9811 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 9812 | |
183e98be AM |
9813 | if (bed->s->elfclass == ELFCLASS32) |
9814 | { | |
9815 | pstatus32_t pstat; | |
9816 | ||
9817 | memset (&pstat, 0, sizeof (pstat)); | |
9818 | pstat.pr_pid = pid & 0xffff; | |
9819 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9820 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9821 | return buf; | |
9822 | } | |
9823 | else | |
9824 | #endif | |
9825 | { | |
9826 | pstatus_t pstat; | |
9827 | ||
9828 | memset (&pstat, 0, sizeof (pstat)); | |
9829 | pstat.pr_pid = pid & 0xffff; | |
9830 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9831 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9832 | return buf; | |
9833 | } | |
7c76fa91 MS |
9834 | } |
9835 | #endif /* HAVE_PSTATUS_T */ | |
9836 | ||
9837 | char * | |
217aa764 AM |
9838 | elfcore_write_prfpreg (bfd *abfd, |
9839 | char *buf, | |
9840 | int *bufsiz, | |
9841 | const void *fpregs, | |
9842 | int size) | |
7c76fa91 | 9843 | { |
183e98be | 9844 | const char *note_name = "CORE"; |
47d9a591 | 9845 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9846 | note_name, NT_FPREGSET, fpregs, size); |
9847 | } | |
9848 | ||
9849 | char * | |
217aa764 AM |
9850 | elfcore_write_prxfpreg (bfd *abfd, |
9851 | char *buf, | |
9852 | int *bufsiz, | |
9853 | const void *xfpregs, | |
9854 | int size) | |
7c76fa91 MS |
9855 | { |
9856 | char *note_name = "LINUX"; | |
47d9a591 | 9857 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9858 | note_name, NT_PRXFPREG, xfpregs, size); |
9859 | } | |
9860 | ||
4339cae0 L |
9861 | char * |
9862 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
9863 | const void *xfpregs, int size) | |
9864 | { | |
97de3545 JB |
9865 | char *note_name; |
9866 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
9867 | note_name = "FreeBSD"; | |
9868 | else | |
9869 | note_name = "LINUX"; | |
4339cae0 L |
9870 | return elfcore_write_note (abfd, buf, bufsiz, |
9871 | note_name, NT_X86_XSTATE, xfpregs, size); | |
9872 | } | |
9873 | ||
97753bd5 AM |
9874 | char * |
9875 | elfcore_write_ppc_vmx (bfd *abfd, | |
9876 | char *buf, | |
9877 | int *bufsiz, | |
9878 | const void *ppc_vmx, | |
9879 | int size) | |
9880 | { | |
9881 | char *note_name = "LINUX"; | |
9882 | return elfcore_write_note (abfd, buf, bufsiz, | |
9883 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
9884 | } | |
9885 | ||
89eeb0bc LM |
9886 | char * |
9887 | elfcore_write_ppc_vsx (bfd *abfd, | |
9888 | char *buf, | |
9889 | int *bufsiz, | |
9890 | const void *ppc_vsx, | |
9891 | int size) | |
9892 | { | |
9893 | char *note_name = "LINUX"; | |
9894 | return elfcore_write_note (abfd, buf, bufsiz, | |
9895 | note_name, NT_PPC_VSX, ppc_vsx, size); | |
9896 | } | |
9897 | ||
0675e188 UW |
9898 | static char * |
9899 | elfcore_write_s390_high_gprs (bfd *abfd, | |
9900 | char *buf, | |
9901 | int *bufsiz, | |
9902 | const void *s390_high_gprs, | |
9903 | int size) | |
9904 | { | |
9905 | char *note_name = "LINUX"; | |
9906 | return elfcore_write_note (abfd, buf, bufsiz, | |
9907 | note_name, NT_S390_HIGH_GPRS, | |
9908 | s390_high_gprs, size); | |
9909 | } | |
9910 | ||
d7eeb400 MS |
9911 | char * |
9912 | elfcore_write_s390_timer (bfd *abfd, | |
9913 | char *buf, | |
9914 | int *bufsiz, | |
9915 | const void *s390_timer, | |
9916 | int size) | |
9917 | { | |
9918 | char *note_name = "LINUX"; | |
9919 | return elfcore_write_note (abfd, buf, bufsiz, | |
9920 | note_name, NT_S390_TIMER, s390_timer, size); | |
9921 | } | |
9922 | ||
9923 | char * | |
9924 | elfcore_write_s390_todcmp (bfd *abfd, | |
9925 | char *buf, | |
9926 | int *bufsiz, | |
9927 | const void *s390_todcmp, | |
9928 | int size) | |
9929 | { | |
9930 | char *note_name = "LINUX"; | |
9931 | return elfcore_write_note (abfd, buf, bufsiz, | |
9932 | note_name, NT_S390_TODCMP, s390_todcmp, size); | |
9933 | } | |
9934 | ||
9935 | char * | |
9936 | elfcore_write_s390_todpreg (bfd *abfd, | |
9937 | char *buf, | |
9938 | int *bufsiz, | |
9939 | const void *s390_todpreg, | |
9940 | int size) | |
9941 | { | |
9942 | char *note_name = "LINUX"; | |
9943 | return elfcore_write_note (abfd, buf, bufsiz, | |
9944 | note_name, NT_S390_TODPREG, s390_todpreg, size); | |
9945 | } | |
9946 | ||
9947 | char * | |
9948 | elfcore_write_s390_ctrs (bfd *abfd, | |
9949 | char *buf, | |
9950 | int *bufsiz, | |
9951 | const void *s390_ctrs, | |
9952 | int size) | |
9953 | { | |
9954 | char *note_name = "LINUX"; | |
9955 | return elfcore_write_note (abfd, buf, bufsiz, | |
9956 | note_name, NT_S390_CTRS, s390_ctrs, size); | |
9957 | } | |
9958 | ||
9959 | char * | |
9960 | elfcore_write_s390_prefix (bfd *abfd, | |
9961 | char *buf, | |
9962 | int *bufsiz, | |
9963 | const void *s390_prefix, | |
9964 | int size) | |
9965 | { | |
9966 | char *note_name = "LINUX"; | |
9967 | return elfcore_write_note (abfd, buf, bufsiz, | |
9968 | note_name, NT_S390_PREFIX, s390_prefix, size); | |
9969 | } | |
9970 | ||
355b81d9 UW |
9971 | char * |
9972 | elfcore_write_s390_last_break (bfd *abfd, | |
9973 | char *buf, | |
9974 | int *bufsiz, | |
9975 | const void *s390_last_break, | |
9976 | int size) | |
9977 | { | |
9978 | char *note_name = "LINUX"; | |
9979 | return elfcore_write_note (abfd, buf, bufsiz, | |
9980 | note_name, NT_S390_LAST_BREAK, | |
9981 | s390_last_break, size); | |
9982 | } | |
9983 | ||
9984 | char * | |
9985 | elfcore_write_s390_system_call (bfd *abfd, | |
9986 | char *buf, | |
9987 | int *bufsiz, | |
9988 | const void *s390_system_call, | |
9989 | int size) | |
9990 | { | |
9991 | char *note_name = "LINUX"; | |
9992 | return elfcore_write_note (abfd, buf, bufsiz, | |
9993 | note_name, NT_S390_SYSTEM_CALL, | |
9994 | s390_system_call, size); | |
9995 | } | |
9996 | ||
abb3f6cc NC |
9997 | char * |
9998 | elfcore_write_s390_tdb (bfd *abfd, | |
9999 | char *buf, | |
10000 | int *bufsiz, | |
10001 | const void *s390_tdb, | |
10002 | int size) | |
10003 | { | |
10004 | char *note_name = "LINUX"; | |
10005 | return elfcore_write_note (abfd, buf, bufsiz, | |
10006 | note_name, NT_S390_TDB, s390_tdb, size); | |
10007 | } | |
10008 | ||
4ef9f41a AA |
10009 | char * |
10010 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
10011 | char *buf, | |
10012 | int *bufsiz, | |
10013 | const void *s390_vxrs_low, | |
10014 | int size) | |
10015 | { | |
10016 | char *note_name = "LINUX"; | |
10017 | return elfcore_write_note (abfd, buf, bufsiz, | |
10018 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
10019 | } | |
10020 | ||
10021 | char * | |
10022 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
10023 | char *buf, | |
10024 | int *bufsiz, | |
10025 | const void *s390_vxrs_high, | |
10026 | int size) | |
10027 | { | |
10028 | char *note_name = "LINUX"; | |
10029 | return elfcore_write_note (abfd, buf, bufsiz, | |
10030 | note_name, NT_S390_VXRS_HIGH, | |
10031 | s390_vxrs_high, size); | |
10032 | } | |
10033 | ||
faa9a424 UW |
10034 | char * |
10035 | elfcore_write_arm_vfp (bfd *abfd, | |
10036 | char *buf, | |
10037 | int *bufsiz, | |
10038 | const void *arm_vfp, | |
10039 | int size) | |
10040 | { | |
10041 | char *note_name = "LINUX"; | |
10042 | return elfcore_write_note (abfd, buf, bufsiz, | |
10043 | note_name, NT_ARM_VFP, arm_vfp, size); | |
10044 | } | |
10045 | ||
652451f8 YZ |
10046 | char * |
10047 | elfcore_write_aarch_tls (bfd *abfd, | |
10048 | char *buf, | |
10049 | int *bufsiz, | |
10050 | const void *aarch_tls, | |
10051 | int size) | |
10052 | { | |
10053 | char *note_name = "LINUX"; | |
10054 | return elfcore_write_note (abfd, buf, bufsiz, | |
10055 | note_name, NT_ARM_TLS, aarch_tls, size); | |
10056 | } | |
10057 | ||
10058 | char * | |
10059 | elfcore_write_aarch_hw_break (bfd *abfd, | |
10060 | char *buf, | |
10061 | int *bufsiz, | |
10062 | const void *aarch_hw_break, | |
10063 | int size) | |
10064 | { | |
10065 | char *note_name = "LINUX"; | |
10066 | return elfcore_write_note (abfd, buf, bufsiz, | |
10067 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
10068 | } | |
10069 | ||
10070 | char * | |
10071 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
10072 | char *buf, | |
10073 | int *bufsiz, | |
10074 | const void *aarch_hw_watch, | |
10075 | int size) | |
10076 | { | |
10077 | char *note_name = "LINUX"; | |
10078 | return elfcore_write_note (abfd, buf, bufsiz, | |
10079 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
10080 | } | |
10081 | ||
bb864ac1 CES |
10082 | char * |
10083 | elfcore_write_register_note (bfd *abfd, | |
10084 | char *buf, | |
10085 | int *bufsiz, | |
10086 | const char *section, | |
10087 | const void *data, | |
10088 | int size) | |
10089 | { | |
10090 | if (strcmp (section, ".reg2") == 0) | |
10091 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
10092 | if (strcmp (section, ".reg-xfp") == 0) | |
10093 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
10094 | if (strcmp (section, ".reg-xstate") == 0) |
10095 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
10096 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
10097 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
10098 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
10099 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
10100 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
10101 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
10102 | if (strcmp (section, ".reg-s390-timer") == 0) |
10103 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
10104 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
10105 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
10106 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
10107 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
10108 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
10109 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
10110 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
10111 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
10112 | if (strcmp (section, ".reg-s390-last-break") == 0) |
10113 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
10114 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
10115 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
10116 | if (strcmp (section, ".reg-s390-tdb") == 0) |
10117 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
10118 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
10119 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
10120 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
10121 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
10122 | if (strcmp (section, ".reg-arm-vfp") == 0) |
10123 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
10124 | if (strcmp (section, ".reg-aarch-tls") == 0) |
10125 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
10126 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
10127 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
10128 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
10129 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
10130 | return NULL; |
10131 | } | |
10132 | ||
b34976b6 | 10133 | static bfd_boolean |
718175fa | 10134 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset) |
252b5132 | 10135 | { |
c044fabd | 10136 | char *p; |
252b5132 | 10137 | |
252b5132 RH |
10138 | p = buf; |
10139 | while (p < buf + size) | |
10140 | { | |
c044fabd KH |
10141 | /* FIXME: bad alignment assumption. */ |
10142 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
10143 | Elf_Internal_Note in; |
10144 | ||
baea7ef1 AM |
10145 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
10146 | return FALSE; | |
10147 | ||
dc810e39 | 10148 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 10149 | |
dc810e39 | 10150 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 10151 | in.namedata = xnp->name; |
baea7ef1 AM |
10152 | if (in.namesz > buf - in.namedata + size) |
10153 | return FALSE; | |
252b5132 | 10154 | |
dc810e39 | 10155 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
10156 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
10157 | in.descpos = offset + (in.descdata - buf); | |
baea7ef1 AM |
10158 | if (in.descsz != 0 |
10159 | && (in.descdata >= buf + size | |
10160 | || in.descsz > buf - in.descdata + size)) | |
10161 | return FALSE; | |
252b5132 | 10162 | |
718175fa JK |
10163 | switch (bfd_get_format (abfd)) |
10164 | { | |
10165 | default: | |
10166 | return TRUE; | |
10167 | ||
10168 | case bfd_core: | |
f64e188b | 10169 | { |
8acbedd6 | 10170 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 10171 | struct |
718175fa | 10172 | { |
f64e188b | 10173 | const char * string; |
8acbedd6 | 10174 | size_t len; |
f64e188b | 10175 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 10176 | } |
f64e188b | 10177 | grokers[] = |
b15fa79e | 10178 | { |
8acbedd6 KS |
10179 | GROKER_ELEMENT ("", elfcore_grok_note), |
10180 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), | |
10181 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
10182 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
10183 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 10184 | }; |
8acbedd6 | 10185 | #undef GROKER_ELEMENT |
f64e188b NC |
10186 | int i; |
10187 | ||
10188 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
10189 | { |
10190 | if (in.namesz >= grokers[i].len | |
10191 | && strncmp (in.namedata, grokers[i].string, | |
10192 | grokers[i].len) == 0) | |
10193 | { | |
10194 | if (! grokers[i].func (abfd, & in)) | |
10195 | return FALSE; | |
10196 | break; | |
10197 | } | |
10198 | } | |
f64e188b NC |
10199 | break; |
10200 | } | |
718175fa JK |
10201 | |
10202 | case bfd_object: | |
10203 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
10204 | { | |
10205 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
10206 | return FALSE; | |
10207 | } | |
e21e5835 NC |
10208 | else if (in.namesz == sizeof "stapsdt" |
10209 | && strcmp (in.namedata, "stapsdt") == 0) | |
10210 | { | |
10211 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
10212 | return FALSE; | |
10213 | } | |
718175fa | 10214 | break; |
08a40648 | 10215 | } |
252b5132 RH |
10216 | |
10217 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
10218 | } | |
10219 | ||
718175fa JK |
10220 | return TRUE; |
10221 | } | |
10222 | ||
10223 | static bfd_boolean | |
10224 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) | |
10225 | { | |
10226 | char *buf; | |
10227 | ||
10228 | if (size <= 0) | |
10229 | return TRUE; | |
10230 | ||
10231 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
10232 | return FALSE; | |
10233 | ||
f64e188b | 10234 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
10235 | if (buf == NULL) |
10236 | return FALSE; | |
10237 | ||
f64e188b NC |
10238 | /* PR 17512: file: ec08f814 |
10239 | 0-termintate the buffer so that string searches will not overflow. */ | |
10240 | buf[size] = 0; | |
10241 | ||
718175fa JK |
10242 | if (bfd_bread (buf, size, abfd) != size |
10243 | || !elf_parse_notes (abfd, buf, size, offset)) | |
10244 | { | |
10245 | free (buf); | |
10246 | return FALSE; | |
10247 | } | |
10248 | ||
252b5132 | 10249 | free (buf); |
b34976b6 | 10250 | return TRUE; |
252b5132 | 10251 | } |
98d8431c JB |
10252 | \f |
10253 | /* Providing external access to the ELF program header table. */ | |
10254 | ||
10255 | /* Return an upper bound on the number of bytes required to store a | |
10256 | copy of ABFD's program header table entries. Return -1 if an error | |
10257 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 10258 | |
98d8431c | 10259 | long |
217aa764 | 10260 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
10261 | { |
10262 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
10263 | { | |
10264 | bfd_set_error (bfd_error_wrong_format); | |
10265 | return -1; | |
10266 | } | |
10267 | ||
936e320b | 10268 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
10269 | } |
10270 | ||
98d8431c JB |
10271 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
10272 | will be stored as an array of Elf_Internal_Phdr structures, as | |
10273 | defined in include/elf/internal.h. To find out how large the | |
10274 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
10275 | ||
10276 | Return the number of program header table entries read, or -1 if an | |
10277 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 10278 | |
98d8431c | 10279 | int |
217aa764 | 10280 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
10281 | { |
10282 | int num_phdrs; | |
10283 | ||
10284 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
10285 | { | |
10286 | bfd_set_error (bfd_error_wrong_format); | |
10287 | return -1; | |
10288 | } | |
10289 | ||
10290 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 10291 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
10292 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
10293 | ||
10294 | return num_phdrs; | |
10295 | } | |
ae4221d7 | 10296 | |
db6751f2 | 10297 | enum elf_reloc_type_class |
7e612e98 AM |
10298 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
10299 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
10300 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
10301 | { |
10302 | return reloc_class_normal; | |
10303 | } | |
f8df10f4 | 10304 | |
47d9a591 | 10305 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
10306 | relocation against a local symbol. */ |
10307 | ||
10308 | bfd_vma | |
217aa764 AM |
10309 | _bfd_elf_rela_local_sym (bfd *abfd, |
10310 | Elf_Internal_Sym *sym, | |
8517fae7 | 10311 | asection **psec, |
217aa764 | 10312 | Elf_Internal_Rela *rel) |
f8df10f4 | 10313 | { |
8517fae7 | 10314 | asection *sec = *psec; |
f8df10f4 JJ |
10315 | bfd_vma relocation; |
10316 | ||
10317 | relocation = (sec->output_section->vma | |
10318 | + sec->output_offset | |
10319 | + sym->st_value); | |
10320 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 10321 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 10322 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 10323 | { |
f8df10f4 | 10324 | rel->r_addend = |
8517fae7 | 10325 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 10326 | elf_section_data (sec)->sec_info, |
753731ee AM |
10327 | sym->st_value + rel->r_addend); |
10328 | if (sec != *psec) | |
10329 | { | |
10330 | /* If we have changed the section, and our original section is | |
10331 | marked with SEC_EXCLUDE, it means that the original | |
10332 | SEC_MERGE section has been completely subsumed in some | |
10333 | other SEC_MERGE section. In this case, we need to leave | |
10334 | some info around for --emit-relocs. */ | |
10335 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
10336 | sec->kept_section = *psec; | |
10337 | sec = *psec; | |
10338 | } | |
8517fae7 AM |
10339 | rel->r_addend -= relocation; |
10340 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
10341 | } |
10342 | return relocation; | |
10343 | } | |
c629eae0 JJ |
10344 | |
10345 | bfd_vma | |
217aa764 AM |
10346 | _bfd_elf_rel_local_sym (bfd *abfd, |
10347 | Elf_Internal_Sym *sym, | |
10348 | asection **psec, | |
10349 | bfd_vma addend) | |
47d9a591 | 10350 | { |
c629eae0 JJ |
10351 | asection *sec = *psec; |
10352 | ||
dbaa2011 | 10353 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
10354 | return sym->st_value + addend; |
10355 | ||
10356 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 10357 | elf_section_data (sec)->sec_info, |
753731ee | 10358 | sym->st_value + addend); |
c629eae0 JJ |
10359 | } |
10360 | ||
10361 | bfd_vma | |
217aa764 | 10362 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 10363 | struct bfd_link_info *info, |
217aa764 AM |
10364 | asection *sec, |
10365 | bfd_vma offset) | |
c629eae0 | 10366 | { |
68bfbfcc | 10367 | switch (sec->sec_info_type) |
65765700 | 10368 | { |
dbaa2011 | 10369 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
10370 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
10371 | offset); | |
dbaa2011 | 10372 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 10373 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
65765700 | 10374 | default: |
310fd250 L |
10375 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
10376 | { | |
10377 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
10378 | bfd_size_type address_size = bed->s->arch_size / 8; | |
10379 | offset = sec->size - offset - address_size; | |
10380 | } | |
65765700 JJ |
10381 | return offset; |
10382 | } | |
c629eae0 | 10383 | } |
3333a7c3 RM |
10384 | \f |
10385 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
10386 | reconstruct an ELF file by reading the segments out of remote memory | |
10387 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
10388 | points to. If not null, *LOADBASEP is filled in with the difference | |
10389 | between the VMAs from which the segments were read, and the VMAs the | |
10390 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
10391 | ||
10392 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
10393 | remote memory at target address VMA into the local buffer at MYADDR; it | |
10394 | should return zero on success or an `errno' code on failure. TEMPL must | |
10395 | be a BFD for an ELF target with the word size and byte order found in | |
10396 | the remote memory. */ | |
10397 | ||
10398 | bfd * | |
217aa764 AM |
10399 | bfd_elf_bfd_from_remote_memory |
10400 | (bfd *templ, | |
10401 | bfd_vma ehdr_vma, | |
f0a5d95a | 10402 | bfd_size_type size, |
217aa764 | 10403 | bfd_vma *loadbasep, |
fe78531d | 10404 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
10405 | { |
10406 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 10407 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 10408 | } |
4c45e5c9 JJ |
10409 | \f |
10410 | long | |
c9727e01 AM |
10411 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
10412 | long symcount ATTRIBUTE_UNUSED, | |
10413 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 10414 | long dynsymcount, |
c9727e01 AM |
10415 | asymbol **dynsyms, |
10416 | asymbol **ret) | |
4c45e5c9 JJ |
10417 | { |
10418 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
10419 | asection *relplt; | |
10420 | asymbol *s; | |
10421 | const char *relplt_name; | |
10422 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
10423 | arelent *p; | |
10424 | long count, i, n; | |
10425 | size_t size; | |
10426 | Elf_Internal_Shdr *hdr; | |
10427 | char *names; | |
10428 | asection *plt; | |
10429 | ||
8615f3f2 AM |
10430 | *ret = NULL; |
10431 | ||
90e3cdf2 JJ |
10432 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
10433 | return 0; | |
10434 | ||
8615f3f2 AM |
10435 | if (dynsymcount <= 0) |
10436 | return 0; | |
10437 | ||
4c45e5c9 JJ |
10438 | if (!bed->plt_sym_val) |
10439 | return 0; | |
10440 | ||
10441 | relplt_name = bed->relplt_name; | |
10442 | if (relplt_name == NULL) | |
d35fd659 | 10443 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
10444 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
10445 | if (relplt == NULL) | |
10446 | return 0; | |
10447 | ||
10448 | hdr = &elf_section_data (relplt)->this_hdr; | |
10449 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
10450 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
10451 | return 0; | |
10452 | ||
10453 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
10454 | if (plt == NULL) | |
10455 | return 0; | |
10456 | ||
10457 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 10458 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
10459 | return -1; |
10460 | ||
eea6121a | 10461 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
10462 | size = count * sizeof (asymbol); |
10463 | p = relplt->relocation; | |
cb53bf42 | 10464 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
10465 | { |
10466 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
10467 | if (p->addend != 0) | |
10468 | { | |
10469 | #ifdef BFD64 | |
10470 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
10471 | #else | |
10472 | size += sizeof ("+0x") - 1 + 8; | |
10473 | #endif | |
10474 | } | |
10475 | } | |
4c45e5c9 | 10476 | |
a50b1753 | 10477 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
10478 | if (s == NULL) |
10479 | return -1; | |
10480 | ||
10481 | names = (char *) (s + count); | |
10482 | p = relplt->relocation; | |
10483 | n = 0; | |
cb53bf42 | 10484 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
10485 | { |
10486 | size_t len; | |
10487 | bfd_vma addr; | |
10488 | ||
10489 | addr = bed->plt_sym_val (i, plt, p); | |
10490 | if (addr == (bfd_vma) -1) | |
10491 | continue; | |
10492 | ||
10493 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
10494 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
10495 | we are defining a symbol, ensure one of them is set. */ | |
10496 | if ((s->flags & BSF_LOCAL) == 0) | |
10497 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 10498 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
10499 | s->section = plt; |
10500 | s->value = addr - plt->vma; | |
10501 | s->name = names; | |
8f39ba8e | 10502 | s->udata.p = NULL; |
4c45e5c9 JJ |
10503 | len = strlen ((*p->sym_ptr_ptr)->name); |
10504 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
10505 | names += len; | |
041de40d AM |
10506 | if (p->addend != 0) |
10507 | { | |
1d770845 | 10508 | char buf[30], *a; |
d324f6d6 | 10509 | |
041de40d AM |
10510 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
10511 | names += sizeof ("+0x") - 1; | |
1d770845 L |
10512 | bfd_sprintf_vma (abfd, buf, p->addend); |
10513 | for (a = buf; *a == '0'; ++a) | |
10514 | ; | |
10515 | len = strlen (a); | |
10516 | memcpy (names, a, len); | |
10517 | names += len; | |
041de40d | 10518 | } |
4c45e5c9 JJ |
10519 | memcpy (names, "@plt", sizeof ("@plt")); |
10520 | names += sizeof ("@plt"); | |
8f39ba8e | 10521 | ++s, ++n; |
4c45e5c9 JJ |
10522 | } |
10523 | ||
10524 | return n; | |
10525 | } | |
3d7f7666 | 10526 | |
3b22753a L |
10527 | /* It is only used by x86-64 so far. */ |
10528 | asection _bfd_elf_large_com_section | |
10529 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, | |
f592407e | 10530 | SEC_IS_COMMON, NULL, "LARGE_COMMON", 0); |
ecca9871 | 10531 | |
d1036acb | 10532 | void |
78245035 L |
10533 | _bfd_elf_post_process_headers (bfd * abfd, |
10534 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
d1036acb L |
10535 | { |
10536 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
10537 | ||
10538 | i_ehdrp = elf_elfheader (abfd); | |
10539 | ||
10540 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
10541 | |
10542 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 10543 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 10544 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 10545 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 10546 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 10547 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 10548 | } |
fcb93ecf PB |
10549 | |
10550 | ||
10551 | /* Return TRUE for ELF symbol types that represent functions. | |
10552 | This is the default version of this function, which is sufficient for | |
d8045f23 | 10553 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
10554 | |
10555 | bfd_boolean | |
10556 | _bfd_elf_is_function_type (unsigned int type) | |
10557 | { | |
d8045f23 NC |
10558 | return (type == STT_FUNC |
10559 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 10560 | } |
9f296da3 | 10561 | |
aef36ac1 AM |
10562 | /* If the ELF symbol SYM might be a function in SEC, return the |
10563 | function size and set *CODE_OFF to the function's entry point, | |
10564 | otherwise return zero. */ | |
9f296da3 | 10565 | |
aef36ac1 AM |
10566 | bfd_size_type |
10567 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
10568 | bfd_vma *code_off) | |
9f296da3 | 10569 | { |
aef36ac1 AM |
10570 | bfd_size_type size; |
10571 | ||
ff9e0f5b | 10572 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
10573 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
10574 | || sym->section != sec) | |
10575 | return 0; | |
ff9e0f5b | 10576 | |
ff9e0f5b | 10577 | *code_off = sym->value; |
aef36ac1 AM |
10578 | size = 0; |
10579 | if (!(sym->flags & BSF_SYNTHETIC)) | |
10580 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
10581 | if (size == 0) | |
10582 | size = 1; | |
10583 | return size; | |
9f296da3 | 10584 | } |