Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
4b95cf5c | 3 | Copyright (C) 1993-2014 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 AM |
53 | static bfd_boolean prep_headers (bfd *); |
54 | static bfd_boolean swap_out_syms (bfd *, struct bfd_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 | 296 | |
f54498b4 NC |
297 | /* PR binutils/17512: Do not even try to load |
298 | a string table bigger than the entire file... */ | |
299 | if (shstrtabsize >= (bfd_size_type) bfd_get_size (abfd)) | |
300 | return NULL; | |
301 | ||
c6c60d09 JJ |
302 | /* Allocate and clear an extra byte at the end, to prevent crashes |
303 | in case the string table is not terminated. */ | |
3471d59d | 304 | if (shstrtabsize + 1 <= 1 |
a50b1753 | 305 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL |
c6c60d09 JJ |
306 | || bfd_seek (abfd, offset, SEEK_SET) != 0) |
307 | shstrtab = NULL; | |
308 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
309 | { | |
310 | if (bfd_get_error () != bfd_error_system_call) | |
311 | bfd_set_error (bfd_error_file_truncated); | |
312 | shstrtab = NULL; | |
3471d59d CC |
313 | /* Once we've failed to read it, make sure we don't keep |
314 | trying. Otherwise, we'll keep allocating space for | |
315 | the string table over and over. */ | |
316 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
317 | } |
318 | else | |
319 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 320 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 321 | } |
f075ee0c | 322 | return (char *) shstrtab; |
252b5132 RH |
323 | } |
324 | ||
325 | char * | |
217aa764 AM |
326 | bfd_elf_string_from_elf_section (bfd *abfd, |
327 | unsigned int shindex, | |
328 | unsigned int strindex) | |
252b5132 RH |
329 | { |
330 | Elf_Internal_Shdr *hdr; | |
331 | ||
332 | if (strindex == 0) | |
333 | return ""; | |
334 | ||
74f2e02b AM |
335 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
336 | return NULL; | |
337 | ||
252b5132 RH |
338 | hdr = elf_elfsections (abfd)[shindex]; |
339 | ||
340 | if (hdr->contents == NULL | |
341 | && bfd_elf_get_str_section (abfd, shindex) == NULL) | |
342 | return NULL; | |
343 | ||
344 | if (strindex >= hdr->sh_size) | |
345 | { | |
1b3a8575 | 346 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
252b5132 | 347 | (*_bfd_error_handler) |
d003868e AM |
348 | (_("%B: invalid string offset %u >= %lu for section `%s'"), |
349 | abfd, strindex, (unsigned long) hdr->sh_size, | |
1b3a8575 | 350 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 351 | ? ".shstrtab" |
1b3a8575 | 352 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 353 | return NULL; |
252b5132 RH |
354 | } |
355 | ||
356 | return ((char *) hdr->contents) + strindex; | |
357 | } | |
358 | ||
6cdc0ccc AM |
359 | /* Read and convert symbols to internal format. |
360 | SYMCOUNT specifies the number of symbols to read, starting from | |
361 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
362 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
363 | symbols, and symbol section index extensions, respectively. |
364 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
365 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
366 | |
367 | Elf_Internal_Sym * | |
217aa764 AM |
368 | bfd_elf_get_elf_syms (bfd *ibfd, |
369 | Elf_Internal_Shdr *symtab_hdr, | |
370 | size_t symcount, | |
371 | size_t symoffset, | |
372 | Elf_Internal_Sym *intsym_buf, | |
373 | void *extsym_buf, | |
374 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
375 | { |
376 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 377 | void *alloc_ext; |
df622259 | 378 | const bfd_byte *esym; |
6cdc0ccc AM |
379 | Elf_External_Sym_Shndx *alloc_extshndx; |
380 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 381 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
382 | Elf_Internal_Sym *isym; |
383 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 384 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
385 | size_t extsym_size; |
386 | bfd_size_type amt; | |
387 | file_ptr pos; | |
388 | ||
e44a2c9c AM |
389 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
390 | abort (); | |
391 | ||
6cdc0ccc AM |
392 | if (symcount == 0) |
393 | return intsym_buf; | |
394 | ||
395 | /* Normal syms might have section extension entries. */ | |
396 | shndx_hdr = NULL; | |
397 | if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr) | |
398 | shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr; | |
399 | ||
400 | /* Read the symbols. */ | |
401 | alloc_ext = NULL; | |
402 | alloc_extshndx = NULL; | |
4dd07732 | 403 | alloc_intsym = NULL; |
6cdc0ccc AM |
404 | bed = get_elf_backend_data (ibfd); |
405 | extsym_size = bed->s->sizeof_sym; | |
406 | amt = symcount * extsym_size; | |
407 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |
408 | if (extsym_buf == NULL) | |
409 | { | |
d0fb9a8d | 410 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
411 | extsym_buf = alloc_ext; |
412 | } | |
413 | if (extsym_buf == NULL | |
414 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
415 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
416 | { | |
417 | intsym_buf = NULL; | |
418 | goto out; | |
419 | } | |
420 | ||
421 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
422 | extshndx_buf = NULL; | |
423 | else | |
424 | { | |
425 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |
426 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |
427 | if (extshndx_buf == NULL) | |
428 | { | |
a50b1753 NC |
429 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
430 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); | |
6cdc0ccc AM |
431 | extshndx_buf = alloc_extshndx; |
432 | } | |
433 | if (extshndx_buf == NULL | |
434 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
435 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
436 | { | |
437 | intsym_buf = NULL; | |
438 | goto out; | |
439 | } | |
440 | } | |
441 | ||
442 | if (intsym_buf == NULL) | |
443 | { | |
a50b1753 NC |
444 | alloc_intsym = (Elf_Internal_Sym *) |
445 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); | |
4dd07732 | 446 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
447 | if (intsym_buf == NULL) |
448 | goto out; | |
449 | } | |
450 | ||
451 | /* Convert the symbols to internal form. */ | |
452 | isymend = intsym_buf + symcount; | |
a50b1753 NC |
453 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
454 | shndx = extshndx_buf; | |
6cdc0ccc AM |
455 | isym < isymend; |
456 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
457 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
458 | { | |
459 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
460 | (*_bfd_error_handler) (_("%B symbol number %lu references " | |
461 | "nonexistent SHT_SYMTAB_SHNDX section"), | |
462 | ibfd, (unsigned long) symoffset); | |
4dd07732 AM |
463 | if (alloc_intsym != NULL) |
464 | free (alloc_intsym); | |
8384fb8f AM |
465 | intsym_buf = NULL; |
466 | goto out; | |
467 | } | |
6cdc0ccc AM |
468 | |
469 | out: | |
470 | if (alloc_ext != NULL) | |
471 | free (alloc_ext); | |
472 | if (alloc_extshndx != NULL) | |
473 | free (alloc_extshndx); | |
474 | ||
475 | return intsym_buf; | |
476 | } | |
477 | ||
5cab59f6 AM |
478 | /* Look up a symbol name. */ |
479 | const char * | |
be8dd2ca AM |
480 | bfd_elf_sym_name (bfd *abfd, |
481 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
482 | Elf_Internal_Sym *isym, |
483 | asection *sym_sec) | |
5cab59f6 | 484 | { |
26c61ae5 | 485 | const char *name; |
5cab59f6 | 486 | unsigned int iname = isym->st_name; |
be8dd2ca | 487 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 488 | |
138f35cc JJ |
489 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
490 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 491 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
492 | { |
493 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
494 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
495 | } | |
496 | ||
26c61ae5 L |
497 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
498 | if (name == NULL) | |
499 | name = "(null)"; | |
500 | else if (sym_sec && *name == '\0') | |
501 | name = bfd_section_name (abfd, sym_sec); | |
502 | ||
503 | return name; | |
5cab59f6 AM |
504 | } |
505 | ||
dbb410c3 AM |
506 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
507 | sections. The first element is the flags, the rest are section | |
508 | pointers. */ | |
509 | ||
510 | typedef union elf_internal_group { | |
511 | Elf_Internal_Shdr *shdr; | |
512 | unsigned int flags; | |
513 | } Elf_Internal_Group; | |
514 | ||
b885599b AM |
515 | /* Return the name of the group signature symbol. Why isn't the |
516 | signature just a string? */ | |
517 | ||
518 | static const char * | |
217aa764 | 519 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 520 | { |
9dce4196 | 521 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
522 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
523 | Elf_External_Sym_Shndx eshndx; | |
524 | Elf_Internal_Sym isym; | |
b885599b | 525 | |
13792e9d L |
526 | /* First we need to ensure the symbol table is available. Make sure |
527 | that it is a symbol table section. */ | |
4fbb74a6 AM |
528 | if (ghdr->sh_link >= elf_numsections (abfd)) |
529 | return NULL; | |
13792e9d L |
530 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
531 | if (hdr->sh_type != SHT_SYMTAB | |
532 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
533 | return NULL; |
534 | ||
9dce4196 AM |
535 | /* Go read the symbol. */ |
536 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
537 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
538 | &isym, esym, &eshndx) == NULL) | |
b885599b | 539 | return NULL; |
9dce4196 | 540 | |
26c61ae5 | 541 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
542 | } |
543 | ||
dbb410c3 AM |
544 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
545 | ||
b34976b6 | 546 | static bfd_boolean |
217aa764 | 547 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
548 | { |
549 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
550 | ||
551 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
552 | is set to -1 if there are no SHT_GROUP sections. */ | |
553 | if (num_group == 0) | |
554 | { | |
555 | unsigned int i, shnum; | |
556 | ||
557 | /* First count the number of groups. If we have a SHT_GROUP | |
558 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 559 | shnum = elf_numsections (abfd); |
dbb410c3 | 560 | num_group = 0; |
08a40648 | 561 | |
44534af3 | 562 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 563 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 564 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
565 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
566 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 567 | |
dbb410c3 AM |
568 | for (i = 0; i < shnum; i++) |
569 | { | |
570 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 571 | |
44534af3 | 572 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
573 | num_group += 1; |
574 | } | |
575 | ||
576 | if (num_group == 0) | |
20dbb49d L |
577 | { |
578 | num_group = (unsigned) -1; | |
579 | elf_tdata (abfd)->num_group = num_group; | |
580 | } | |
581 | else | |
dbb410c3 AM |
582 | { |
583 | /* We keep a list of elf section headers for group sections, | |
584 | so we can find them quickly. */ | |
20dbb49d | 585 | bfd_size_type amt; |
d0fb9a8d | 586 | |
20dbb49d | 587 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 NC |
588 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
589 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 590 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 591 | return FALSE; |
dbb410c3 AM |
592 | |
593 | num_group = 0; | |
594 | for (i = 0; i < shnum; i++) | |
595 | { | |
596 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 597 | |
44534af3 | 598 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 599 | { |
973ffd63 | 600 | unsigned char *src; |
dbb410c3 AM |
601 | Elf_Internal_Group *dest; |
602 | ||
603 | /* Add to list of sections. */ | |
604 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
605 | num_group += 1; | |
606 | ||
607 | /* Read the raw contents. */ | |
608 | BFD_ASSERT (sizeof (*dest) >= 4); | |
609 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 NC |
610 | shdr->contents = (unsigned char *) |
611 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); | |
1783205a NC |
612 | /* PR binutils/4110: Handle corrupt group headers. */ |
613 | if (shdr->contents == NULL) | |
614 | { | |
615 | _bfd_error_handler | |
493a3386 | 616 | (_("%B: corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); |
1783205a | 617 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
618 | -- num_group; |
619 | continue; | |
1783205a NC |
620 | } |
621 | ||
622 | memset (shdr->contents, 0, amt); | |
623 | ||
624 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
625 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
626 | != shdr->sh_size)) | |
493a3386 NC |
627 | { |
628 | _bfd_error_handler | |
629 | (_("%B: invalid size field in group section header: 0x%lx"), abfd, shdr->sh_size); | |
630 | bfd_set_error (bfd_error_bad_value); | |
631 | -- num_group; | |
632 | /* PR 17510: If the group contents are even partially | |
633 | corrupt, do not allow any of the contents to be used. */ | |
634 | memset (shdr->contents, 0, amt); | |
635 | continue; | |
636 | } | |
708d7d0d | 637 | |
dbb410c3 AM |
638 | /* Translate raw contents, a flag word followed by an |
639 | array of elf section indices all in target byte order, | |
640 | to the flag word followed by an array of elf section | |
641 | pointers. */ | |
642 | src = shdr->contents + shdr->sh_size; | |
643 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
644 | while (1) | |
645 | { | |
646 | unsigned int idx; | |
647 | ||
648 | src -= 4; | |
649 | --dest; | |
650 | idx = H_GET_32 (abfd, src); | |
651 | if (src == shdr->contents) | |
652 | { | |
653 | dest->flags = idx; | |
b885599b AM |
654 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
655 | shdr->bfd_section->flags | |
656 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
657 | break; |
658 | } | |
659 | if (idx >= shnum) | |
660 | { | |
661 | ((*_bfd_error_handler) | |
d003868e | 662 | (_("%B: invalid SHT_GROUP entry"), abfd)); |
dbb410c3 AM |
663 | idx = 0; |
664 | } | |
665 | dest->shdr = elf_elfsections (abfd)[idx]; | |
666 | } | |
667 | } | |
668 | } | |
493a3386 NC |
669 | |
670 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
671 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
672 | { | |
673 | elf_tdata (abfd)->num_group = num_group; | |
674 | ||
675 | /* If all groups are invalid then fail. */ | |
676 | if (num_group == 0) | |
677 | { | |
678 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
679 | elf_tdata (abfd)->num_group = num_group = -1; | |
680 | (*_bfd_error_handler) (_("%B: no valid group sections found"), abfd); | |
681 | bfd_set_error (bfd_error_bad_value); | |
682 | } | |
683 | } | |
dbb410c3 AM |
684 | } |
685 | } | |
686 | ||
687 | if (num_group != (unsigned) -1) | |
688 | { | |
689 | unsigned int i; | |
690 | ||
691 | for (i = 0; i < num_group; i++) | |
692 | { | |
693 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
694 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
695 | unsigned int n_elt = shdr->sh_size / 4; | |
696 | ||
697 | /* Look through this group's sections to see if current | |
698 | section is a member. */ | |
699 | while (--n_elt != 0) | |
700 | if ((++idx)->shdr == hdr) | |
701 | { | |
e0e8c97f | 702 | asection *s = NULL; |
dbb410c3 AM |
703 | |
704 | /* We are a member of this group. Go looking through | |
705 | other members to see if any others are linked via | |
706 | next_in_group. */ | |
707 | idx = (Elf_Internal_Group *) shdr->contents; | |
708 | n_elt = shdr->sh_size / 4; | |
709 | while (--n_elt != 0) | |
710 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 711 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
712 | break; |
713 | if (n_elt != 0) | |
714 | { | |
dbb410c3 AM |
715 | /* Snarf the group name from other member, and |
716 | insert current section in circular list. */ | |
945906ff AM |
717 | elf_group_name (newsect) = elf_group_name (s); |
718 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
719 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
720 | } |
721 | else | |
722 | { | |
dbb410c3 AM |
723 | const char *gname; |
724 | ||
b885599b AM |
725 | gname = group_signature (abfd, shdr); |
726 | if (gname == NULL) | |
b34976b6 | 727 | return FALSE; |
945906ff | 728 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
729 | |
730 | /* Start a circular list with one element. */ | |
945906ff | 731 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 732 | } |
b885599b | 733 | |
9dce4196 AM |
734 | /* If the group section has been created, point to the |
735 | new member. */ | |
dbb410c3 | 736 | if (shdr->bfd_section != NULL) |
945906ff | 737 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 738 | |
dbb410c3 AM |
739 | i = num_group - 1; |
740 | break; | |
741 | } | |
742 | } | |
743 | } | |
744 | ||
945906ff | 745 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 746 | { |
d003868e AM |
747 | (*_bfd_error_handler) (_("%B: no group info for section %A"), |
748 | abfd, newsect); | |
493a3386 | 749 | return FALSE; |
dbb410c3 | 750 | } |
b34976b6 | 751 | return TRUE; |
dbb410c3 AM |
752 | } |
753 | ||
3d7f7666 | 754 | bfd_boolean |
dd863624 | 755 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
756 | { |
757 | unsigned int i; | |
758 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
759 | bfd_boolean result = TRUE; | |
dd863624 L |
760 | asection *s; |
761 | ||
762 | /* Process SHF_LINK_ORDER. */ | |
763 | for (s = abfd->sections; s != NULL; s = s->next) | |
764 | { | |
765 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
766 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
767 | { | |
768 | unsigned int elfsec = this_hdr->sh_link; | |
769 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
770 | not set the sh_link or sh_info fields. Hence we could | |
771 | get the situation where elfsec is 0. */ | |
772 | if (elfsec == 0) | |
773 | { | |
4fbb74a6 | 774 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
775 | if (bed->link_order_error_handler) |
776 | bed->link_order_error_handler | |
777 | (_("%B: warning: sh_link not set for section `%A'"), | |
778 | abfd, s); | |
779 | } | |
780 | else | |
781 | { | |
91d6fa6a | 782 | asection *linksec = NULL; |
25bbc984 | 783 | |
4fbb74a6 AM |
784 | if (elfsec < elf_numsections (abfd)) |
785 | { | |
786 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 787 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 788 | } |
25bbc984 L |
789 | |
790 | /* PR 1991, 2008: | |
791 | Some strip/objcopy may leave an incorrect value in | |
792 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 793 | if (linksec == NULL) |
25bbc984 L |
794 | { |
795 | (*_bfd_error_handler) | |
796 | (_("%B: sh_link [%d] in section `%A' is incorrect"), | |
797 | s->owner, s, elfsec); | |
798 | result = FALSE; | |
799 | } | |
800 | ||
91d6fa6a | 801 | elf_linked_to_section (s) = linksec; |
dd863624 L |
802 | } |
803 | } | |
804 | } | |
3d7f7666 | 805 | |
dd863624 | 806 | /* Process section groups. */ |
3d7f7666 L |
807 | if (num_group == (unsigned) -1) |
808 | return result; | |
809 | ||
810 | for (i = 0; i < num_group; i++) | |
811 | { | |
812 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
813 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
814 | unsigned int n_elt = shdr->sh_size / 4; | |
815 | ||
816 | while (--n_elt != 0) | |
817 | if ((++idx)->shdr->bfd_section) | |
818 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
819 | else if (idx->shdr->sh_type == SHT_RELA | |
820 | || idx->shdr->sh_type == SHT_REL) | |
821 | /* We won't include relocation sections in section groups in | |
822 | output object files. We adjust the group section size here | |
823 | so that relocatable link will work correctly when | |
824 | relocation sections are in section group in input object | |
825 | files. */ | |
826 | shdr->bfd_section->size -= 4; | |
827 | else | |
828 | { | |
829 | /* There are some unknown sections in the group. */ | |
830 | (*_bfd_error_handler) | |
d003868e AM |
831 | (_("%B: unknown [%d] section `%s' in group [%s]"), |
832 | abfd, | |
3d7f7666 | 833 | (unsigned int) idx->shdr->sh_type, |
1b3a8575 AM |
834 | bfd_elf_string_from_elf_section (abfd, |
835 | (elf_elfheader (abfd) | |
836 | ->e_shstrndx), | |
837 | idx->shdr->sh_name), | |
3d7f7666 L |
838 | shdr->bfd_section->name); |
839 | result = FALSE; | |
840 | } | |
841 | } | |
842 | return result; | |
843 | } | |
844 | ||
72adc230 AM |
845 | bfd_boolean |
846 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
847 | { | |
848 | return elf_next_in_group (sec) != NULL; | |
849 | } | |
850 | ||
252b5132 RH |
851 | /* Make a BFD section from an ELF section. We store a pointer to the |
852 | BFD section in the bfd_section field of the header. */ | |
853 | ||
b34976b6 | 854 | bfd_boolean |
217aa764 AM |
855 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
856 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
857 | const char *name, |
858 | int shindex) | |
252b5132 RH |
859 | { |
860 | asection *newsect; | |
861 | flagword flags; | |
9c5bfbb7 | 862 | const struct elf_backend_data *bed; |
252b5132 RH |
863 | |
864 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 865 | return TRUE; |
252b5132 RH |
866 | |
867 | newsect = bfd_make_section_anyway (abfd, name); | |
868 | if (newsect == NULL) | |
b34976b6 | 869 | return FALSE; |
252b5132 | 870 | |
1829f4b2 AM |
871 | hdr->bfd_section = newsect; |
872 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 873 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 874 | |
2f89ff8d L |
875 | /* Always use the real type/flags. */ |
876 | elf_section_type (newsect) = hdr->sh_type; | |
877 | elf_section_flags (newsect) = hdr->sh_flags; | |
878 | ||
252b5132 RH |
879 | newsect->filepos = hdr->sh_offset; |
880 | ||
881 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
882 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
883 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 884 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 885 | return FALSE; |
252b5132 RH |
886 | |
887 | flags = SEC_NO_FLAGS; | |
888 | if (hdr->sh_type != SHT_NOBITS) | |
889 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 890 | if (hdr->sh_type == SHT_GROUP) |
b3096250 | 891 | flags |= SEC_GROUP | SEC_EXCLUDE; |
252b5132 RH |
892 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
893 | { | |
894 | flags |= SEC_ALLOC; | |
895 | if (hdr->sh_type != SHT_NOBITS) | |
896 | flags |= SEC_LOAD; | |
897 | } | |
898 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
899 | flags |= SEC_READONLY; | |
900 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
901 | flags |= SEC_CODE; | |
902 | else if ((flags & SEC_LOAD) != 0) | |
903 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
904 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
905 | { | |
906 | flags |= SEC_MERGE; | |
907 | newsect->entsize = hdr->sh_entsize; | |
908 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
909 | flags |= SEC_STRINGS; | |
910 | } | |
dbb410c3 AM |
911 | if (hdr->sh_flags & SHF_GROUP) |
912 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 913 | return FALSE; |
13ae64f3 JJ |
914 | if ((hdr->sh_flags & SHF_TLS) != 0) |
915 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
916 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
917 | flags |= SEC_EXCLUDE; | |
252b5132 | 918 | |
3d2b39cf | 919 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 920 | { |
3d2b39cf L |
921 | /* The debugging sections appear to be recognized only by name, |
922 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
923 | if (name [0] == '.') |
924 | { | |
f073ced3 AM |
925 | const char *p; |
926 | int n; | |
927 | if (name[1] == 'd') | |
928 | p = ".debug", n = 6; | |
929 | else if (name[1] == 'g' && name[2] == 'n') | |
930 | p = ".gnu.linkonce.wi.", n = 17; | |
931 | else if (name[1] == 'g' && name[2] == 'd') | |
932 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
933 | else if (name[1] == 'l') | |
934 | p = ".line", n = 5; | |
935 | else if (name[1] == 's') | |
936 | p = ".stab", n = 5; | |
937 | else if (name[1] == 'z') | |
938 | p = ".zdebug", n = 7; | |
939 | else | |
940 | p = NULL, n = 0; | |
941 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
942 | flags |= SEC_DEBUGGING; |
943 | } | |
944 | } | |
252b5132 RH |
945 | |
946 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
947 | only link a single copy of the section. This is used to support | |
948 | g++. g++ will emit each template expansion in its own section. | |
949 | The symbols will be defined as weak, so that multiple definitions | |
950 | are permitted. The GNU linker extension is to actually discard | |
951 | all but one of the sections. */ | |
0112cd26 | 952 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 953 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
954 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
955 | ||
fa152c49 JW |
956 | bed = get_elf_backend_data (abfd); |
957 | if (bed->elf_backend_section_flags) | |
958 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 959 | return FALSE; |
fa152c49 | 960 | |
252b5132 | 961 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 962 | return FALSE; |
252b5132 | 963 | |
718175fa JK |
964 | /* We do not parse the PT_NOTE segments as we are interested even in the |
965 | separate debug info files which may have the segments offsets corrupted. | |
966 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
967 | if (hdr->sh_type == SHT_NOTE) | |
968 | { | |
baea7ef1 | 969 | bfd_byte *contents; |
718175fa | 970 | |
baea7ef1 | 971 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
972 | return FALSE; |
973 | ||
baea7ef1 | 974 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, -1); |
718175fa JK |
975 | free (contents); |
976 | } | |
977 | ||
252b5132 RH |
978 | if ((flags & SEC_ALLOC) != 0) |
979 | { | |
980 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
981 | unsigned int i, nload; |
982 | ||
983 | /* Some ELF linkers produce binaries with all the program header | |
984 | p_paddr fields zero. If we have such a binary with more than | |
985 | one PT_LOAD header, then leave the section lma equal to vma | |
986 | so that we don't create sections with overlapping lma. */ | |
987 | phdr = elf_tdata (abfd)->phdr; | |
988 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
989 | if (phdr->p_paddr != 0) | |
990 | break; | |
991 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
992 | ++nload; | |
993 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
994 | return TRUE; | |
252b5132 | 995 | |
252b5132 RH |
996 | phdr = elf_tdata (abfd)->phdr; |
997 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
998 | { | |
86b2281f AM |
999 | if (((phdr->p_type == PT_LOAD |
1000 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1001 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1002 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1003 | { |
88967714 AM |
1004 | if ((flags & SEC_LOAD) == 0) |
1005 | newsect->lma = (phdr->p_paddr | |
1006 | + hdr->sh_addr - phdr->p_vaddr); | |
1007 | else | |
1008 | /* We used to use the same adjustment for SEC_LOAD | |
1009 | sections, but that doesn't work if the segment | |
1010 | is packed with code from multiple VMAs. | |
1011 | Instead we calculate the section LMA based on | |
1012 | the segment LMA. It is assumed that the | |
1013 | segment will contain sections with contiguous | |
1014 | LMAs, even if the VMAs are not. */ | |
1015 | newsect->lma = (phdr->p_paddr | |
1016 | + hdr->sh_offset - phdr->p_offset); | |
1017 | ||
1018 | /* With contiguous segments, we can't tell from file | |
1019 | offsets whether a section with zero size should | |
1020 | be placed at the end of one segment or the | |
1021 | beginning of the next. Decide based on vaddr. */ | |
1022 | if (hdr->sh_addr >= phdr->p_vaddr | |
1023 | && (hdr->sh_addr + hdr->sh_size | |
1024 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1025 | break; | |
252b5132 RH |
1026 | } |
1027 | } | |
1028 | } | |
1029 | ||
4a114e3e L |
1030 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1031 | .zdebug_*, after the section flags is set. */ | |
1032 | if ((flags & SEC_DEBUGGING) | |
1033 | && ((name[1] == 'd' && name[6] == '_') | |
1034 | || (name[1] == 'z' && name[7] == '_'))) | |
1035 | { | |
1036 | enum { nothing, compress, decompress } action = nothing; | |
4e011fb5 | 1037 | char *new_name; |
4a114e3e L |
1038 | |
1039 | if (bfd_is_section_compressed (abfd, newsect)) | |
1040 | { | |
1041 | /* Compressed section. Check if we should decompress. */ | |
1042 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1043 | action = decompress; | |
1044 | } | |
1045 | else | |
1046 | { | |
1047 | /* Normal section. Check if we should compress. */ | |
5a5ed5b0 | 1048 | if ((abfd->flags & BFD_COMPRESS) && newsect->size != 0) |
4a114e3e L |
1049 | action = compress; |
1050 | } | |
1051 | ||
4e011fb5 | 1052 | new_name = NULL; |
4a114e3e L |
1053 | switch (action) |
1054 | { | |
1055 | case nothing: | |
1056 | break; | |
1057 | case compress: | |
1058 | if (!bfd_init_section_compress_status (abfd, newsect)) | |
1059 | { | |
1060 | (*_bfd_error_handler) | |
bc823199 | 1061 | (_("%B: unable to initialize compress status for section %s"), |
4a114e3e L |
1062 | abfd, name); |
1063 | return FALSE; | |
1064 | } | |
4e011fb5 AM |
1065 | if (name[1] != 'z') |
1066 | { | |
1067 | unsigned int len = strlen (name); | |
1068 | ||
1069 | new_name = bfd_alloc (abfd, len + 2); | |
1070 | if (new_name == NULL) | |
1071 | return FALSE; | |
1072 | new_name[0] = '.'; | |
1073 | new_name[1] = 'z'; | |
1074 | memcpy (new_name + 2, name + 1, len); | |
1075 | } | |
4a114e3e L |
1076 | break; |
1077 | case decompress: | |
1078 | if (!bfd_init_section_decompress_status (abfd, newsect)) | |
1079 | { | |
1080 | (*_bfd_error_handler) | |
bc823199 | 1081 | (_("%B: unable to initialize decompress status for section %s"), |
4a114e3e L |
1082 | abfd, name); |
1083 | return FALSE; | |
1084 | } | |
4e011fb5 AM |
1085 | if (name[1] == 'z') |
1086 | { | |
1087 | unsigned int len = strlen (name); | |
1088 | ||
1089 | new_name = bfd_alloc (abfd, len); | |
1090 | if (new_name == NULL) | |
1091 | return FALSE; | |
1092 | new_name[0] = '.'; | |
1093 | memcpy (new_name + 1, name + 2, len - 1); | |
1094 | } | |
4a114e3e L |
1095 | break; |
1096 | } | |
4e011fb5 AM |
1097 | if (new_name != NULL) |
1098 | bfd_rename_section (abfd, newsect, new_name); | |
4a114e3e L |
1099 | } |
1100 | ||
b34976b6 | 1101 | return TRUE; |
252b5132 RH |
1102 | } |
1103 | ||
252b5132 RH |
1104 | const char *const bfd_elf_section_type_names[] = { |
1105 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
1106 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1107 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1108 | }; | |
1109 | ||
1049f94e | 1110 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1111 | output, and the reloc is against an external symbol, and nothing |
1112 | has given us any additional addend, the resulting reloc will also | |
1113 | be against the same symbol. In such a case, we don't want to | |
1114 | change anything about the way the reloc is handled, since it will | |
1115 | all be done at final link time. Rather than put special case code | |
1116 | into bfd_perform_relocation, all the reloc types use this howto | |
1117 | function. It just short circuits the reloc if producing | |
1049f94e | 1118 | relocatable output against an external symbol. */ |
252b5132 | 1119 | |
252b5132 | 1120 | bfd_reloc_status_type |
217aa764 AM |
1121 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1122 | arelent *reloc_entry, | |
1123 | asymbol *symbol, | |
1124 | void *data ATTRIBUTE_UNUSED, | |
1125 | asection *input_section, | |
1126 | bfd *output_bfd, | |
1127 | char **error_message ATTRIBUTE_UNUSED) | |
1128 | { | |
1129 | if (output_bfd != NULL | |
252b5132 RH |
1130 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1131 | && (! reloc_entry->howto->partial_inplace | |
1132 | || reloc_entry->addend == 0)) | |
1133 | { | |
1134 | reloc_entry->address += input_section->output_offset; | |
1135 | return bfd_reloc_ok; | |
1136 | } | |
1137 | ||
1138 | return bfd_reloc_continue; | |
1139 | } | |
1140 | \f | |
0ac4564e L |
1141 | /* Copy the program header and other data from one object module to |
1142 | another. */ | |
252b5132 | 1143 | |
b34976b6 | 1144 | bfd_boolean |
217aa764 | 1145 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 L |
1146 | { |
1147 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1148 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1149 | return TRUE; |
2d502050 | 1150 | |
57b828ef L |
1151 | if (!elf_flags_init (obfd)) |
1152 | { | |
1153 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1154 | elf_flags_init (obfd) = TRUE; | |
1155 | } | |
2d502050 | 1156 | |
0ac4564e | 1157 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1158 | |
1159 | /* Also copy the EI_OSABI field. */ | |
1160 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1161 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 JM |
1162 | |
1163 | /* Copy object attributes. */ | |
1164 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
b34976b6 | 1165 | return TRUE; |
2d502050 L |
1166 | } |
1167 | ||
cedc298e L |
1168 | static const char * |
1169 | get_segment_type (unsigned int p_type) | |
1170 | { | |
1171 | const char *pt; | |
1172 | switch (p_type) | |
1173 | { | |
1174 | case PT_NULL: pt = "NULL"; break; | |
1175 | case PT_LOAD: pt = "LOAD"; break; | |
1176 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1177 | case PT_INTERP: pt = "INTERP"; break; | |
1178 | case PT_NOTE: pt = "NOTE"; break; | |
1179 | case PT_SHLIB: pt = "SHLIB"; break; | |
1180 | case PT_PHDR: pt = "PHDR"; break; | |
1181 | case PT_TLS: pt = "TLS"; break; | |
1182 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1183 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1184 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1185 | default: pt = NULL; break; | |
1186 | } | |
1187 | return pt; | |
1188 | } | |
1189 | ||
f0b79d91 L |
1190 | /* Print out the program headers. */ |
1191 | ||
b34976b6 | 1192 | bfd_boolean |
217aa764 | 1193 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1194 | { |
a50b1753 | 1195 | FILE *f = (FILE *) farg; |
252b5132 RH |
1196 | Elf_Internal_Phdr *p; |
1197 | asection *s; | |
1198 | bfd_byte *dynbuf = NULL; | |
1199 | ||
1200 | p = elf_tdata (abfd)->phdr; | |
1201 | if (p != NULL) | |
1202 | { | |
1203 | unsigned int i, c; | |
1204 | ||
1205 | fprintf (f, _("\nProgram Header:\n")); | |
1206 | c = elf_elfheader (abfd)->e_phnum; | |
1207 | for (i = 0; i < c; i++, p++) | |
1208 | { | |
cedc298e | 1209 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1210 | char buf[20]; |
1211 | ||
cedc298e | 1212 | if (pt == NULL) |
252b5132 | 1213 | { |
cedc298e L |
1214 | sprintf (buf, "0x%lx", p->p_type); |
1215 | pt = buf; | |
252b5132 | 1216 | } |
dc810e39 | 1217 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1218 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1219 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1220 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1221 | fprintf (f, " paddr 0x"); |
60b89a18 | 1222 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1223 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1224 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1225 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1226 | fprintf (f, " memsz 0x"); |
60b89a18 | 1227 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1228 | fprintf (f, " flags %c%c%c", |
1229 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1230 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1231 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1232 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1233 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1234 | fprintf (f, "\n"); |
1235 | } | |
1236 | } | |
1237 | ||
1238 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1239 | if (s != NULL) | |
1240 | { | |
cb33740c | 1241 | unsigned int elfsec; |
dc810e39 | 1242 | unsigned long shlink; |
252b5132 RH |
1243 | bfd_byte *extdyn, *extdynend; |
1244 | size_t extdynsize; | |
217aa764 | 1245 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1246 | |
1247 | fprintf (f, _("\nDynamic Section:\n")); | |
1248 | ||
eea6121a | 1249 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1250 | goto error_return; |
1251 | ||
1252 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1253 | if (elfsec == SHN_BAD) |
252b5132 | 1254 | goto error_return; |
dc810e39 | 1255 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1256 | |
1257 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1258 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1259 | ||
1260 | extdyn = dynbuf; | |
eea6121a | 1261 | extdynend = extdyn + s->size; |
252b5132 RH |
1262 | for (; extdyn < extdynend; extdyn += extdynsize) |
1263 | { | |
1264 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1265 | const char *name = ""; |
252b5132 | 1266 | char ab[20]; |
b34976b6 | 1267 | bfd_boolean stringp; |
ad9563d6 | 1268 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1269 | |
217aa764 | 1270 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1271 | |
1272 | if (dyn.d_tag == DT_NULL) | |
1273 | break; | |
1274 | ||
b34976b6 | 1275 | stringp = FALSE; |
252b5132 RH |
1276 | switch (dyn.d_tag) |
1277 | { | |
1278 | default: | |
ad9563d6 CM |
1279 | if (bed->elf_backend_get_target_dtag) |
1280 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1281 | ||
1282 | if (!strcmp (name, "")) | |
1283 | { | |
1284 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
1285 | name = ab; | |
1286 | } | |
252b5132 RH |
1287 | break; |
1288 | ||
b34976b6 | 1289 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1290 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1291 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1292 | case DT_HASH: name = "HASH"; break; | |
1293 | case DT_STRTAB: name = "STRTAB"; break; | |
1294 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1295 | case DT_RELA: name = "RELA"; break; | |
1296 | case DT_RELASZ: name = "RELASZ"; break; | |
1297 | case DT_RELAENT: name = "RELAENT"; break; | |
1298 | case DT_STRSZ: name = "STRSZ"; break; | |
1299 | case DT_SYMENT: name = "SYMENT"; break; | |
1300 | case DT_INIT: name = "INIT"; break; | |
1301 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1302 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1303 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1304 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1305 | case DT_REL: name = "REL"; break; | |
1306 | case DT_RELSZ: name = "RELSZ"; break; | |
1307 | case DT_RELENT: name = "RELENT"; break; | |
1308 | case DT_PLTREL: name = "PLTREL"; break; | |
1309 | case DT_DEBUG: name = "DEBUG"; break; | |
1310 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1311 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1312 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1313 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1314 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1315 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1316 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1317 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1318 | case DT_FLAGS: name = "FLAGS"; break; |
1319 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1320 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1321 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1322 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1323 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1324 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1325 | case DT_FEATURE: name = "FEATURE"; break; | |
1326 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1327 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1328 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1329 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1330 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1331 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1332 | case DT_PLTPAD: name = "PLTPAD"; break; |
1333 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1334 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1335 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1336 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1337 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1338 | case DT_VERSYM: name = "VERSYM"; break; |
1339 | case DT_VERDEF: name = "VERDEF"; break; | |
1340 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1341 | case DT_VERNEED: name = "VERNEED"; break; | |
1342 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1343 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1344 | case DT_USED: name = "USED"; break; |
b34976b6 | 1345 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1346 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1347 | } |
1348 | ||
ad9563d6 | 1349 | fprintf (f, " %-20s ", name); |
252b5132 | 1350 | if (! stringp) |
a1f3c56e AN |
1351 | { |
1352 | fprintf (f, "0x"); | |
1353 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1354 | } | |
252b5132 RH |
1355 | else |
1356 | { | |
1357 | const char *string; | |
dc810e39 | 1358 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1359 | |
dc810e39 | 1360 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1361 | if (string == NULL) |
1362 | goto error_return; | |
1363 | fprintf (f, "%s", string); | |
1364 | } | |
1365 | fprintf (f, "\n"); | |
1366 | } | |
1367 | ||
1368 | free (dynbuf); | |
1369 | dynbuf = NULL; | |
1370 | } | |
1371 | ||
1372 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1373 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1374 | { | |
fc0e6df6 | 1375 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1376 | return FALSE; |
252b5132 RH |
1377 | } |
1378 | ||
1379 | if (elf_dynverdef (abfd) != 0) | |
1380 | { | |
1381 | Elf_Internal_Verdef *t; | |
1382 | ||
1383 | fprintf (f, _("\nVersion definitions:\n")); | |
1384 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1385 | { | |
1386 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1387 | t->vd_flags, t->vd_hash, |
1388 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1389 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1390 | { |
1391 | Elf_Internal_Verdaux *a; | |
1392 | ||
1393 | fprintf (f, "\t"); | |
1394 | for (a = t->vd_auxptr->vda_nextptr; | |
1395 | a != NULL; | |
1396 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1397 | fprintf (f, "%s ", |
1398 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1399 | fprintf (f, "\n"); |
1400 | } | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | if (elf_dynverref (abfd) != 0) | |
1405 | { | |
1406 | Elf_Internal_Verneed *t; | |
1407 | ||
1408 | fprintf (f, _("\nVersion References:\n")); | |
1409 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1410 | { | |
1411 | Elf_Internal_Vernaux *a; | |
1412 | ||
d0fb9a8d JJ |
1413 | fprintf (f, _(" required from %s:\n"), |
1414 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1415 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1416 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1417 | a->vna_flags, a->vna_other, |
1418 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1419 | } |
1420 | } | |
1421 | ||
b34976b6 | 1422 | return TRUE; |
252b5132 RH |
1423 | |
1424 | error_return: | |
1425 | if (dynbuf != NULL) | |
1426 | free (dynbuf); | |
b34976b6 | 1427 | return FALSE; |
252b5132 RH |
1428 | } |
1429 | ||
1430 | /* Display ELF-specific fields of a symbol. */ | |
1431 | ||
1432 | void | |
217aa764 AM |
1433 | bfd_elf_print_symbol (bfd *abfd, |
1434 | void *filep, | |
1435 | asymbol *symbol, | |
1436 | bfd_print_symbol_type how) | |
252b5132 | 1437 | { |
a50b1753 | 1438 | FILE *file = (FILE *) filep; |
252b5132 RH |
1439 | switch (how) |
1440 | { | |
1441 | case bfd_print_symbol_name: | |
1442 | fprintf (file, "%s", symbol->name); | |
1443 | break; | |
1444 | case bfd_print_symbol_more: | |
1445 | fprintf (file, "elf "); | |
60b89a18 | 1446 | bfd_fprintf_vma (abfd, file, symbol->value); |
0af1713e | 1447 | fprintf (file, " %lx", (unsigned long) symbol->flags); |
252b5132 RH |
1448 | break; |
1449 | case bfd_print_symbol_all: | |
1450 | { | |
4e8a9624 AM |
1451 | const char *section_name; |
1452 | const char *name = NULL; | |
9c5bfbb7 | 1453 | const struct elf_backend_data *bed; |
7a13edea | 1454 | unsigned char st_other; |
dbb410c3 | 1455 | bfd_vma val; |
c044fabd | 1456 | |
252b5132 | 1457 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1458 | |
1459 | bed = get_elf_backend_data (abfd); | |
1460 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1461 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1462 | |
1463 | if (name == NULL) | |
1464 | { | |
7ee38065 | 1465 | name = symbol->name; |
217aa764 | 1466 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1467 | } |
1468 | ||
252b5132 RH |
1469 | fprintf (file, " %s\t", section_name); |
1470 | /* Print the "other" value for a symbol. For common symbols, | |
1471 | we've already printed the size; now print the alignment. | |
1472 | For other symbols, we have no specified alignment, and | |
1473 | we've printed the address; now print the size. */ | |
dcf6c779 | 1474 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1475 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1476 | else | |
1477 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1478 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1479 | |
1480 | /* If we have version information, print it. */ | |
12bd6957 AM |
1481 | if (elf_dynversym (abfd) != 0 |
1482 | && (elf_dynverdef (abfd) != 0 | |
1483 | || elf_dynverref (abfd) != 0)) | |
252b5132 RH |
1484 | { |
1485 | unsigned int vernum; | |
1486 | const char *version_string; | |
1487 | ||
1488 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION; | |
1489 | ||
1490 | if (vernum == 0) | |
1491 | version_string = ""; | |
1492 | else if (vernum == 1) | |
1493 | version_string = "Base"; | |
1494 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1495 | version_string = | |
1496 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1497 | else | |
1498 | { | |
1499 | Elf_Internal_Verneed *t; | |
1500 | ||
1501 | version_string = ""; | |
1502 | for (t = elf_tdata (abfd)->verref; | |
1503 | t != NULL; | |
1504 | t = t->vn_nextref) | |
1505 | { | |
1506 | Elf_Internal_Vernaux *a; | |
1507 | ||
1508 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1509 | { | |
1510 | if (a->vna_other == vernum) | |
1511 | { | |
1512 | version_string = a->vna_nodename; | |
1513 | break; | |
1514 | } | |
1515 | } | |
1516 | } | |
1517 | } | |
1518 | ||
1519 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0) | |
1520 | fprintf (file, " %-11s", version_string); | |
1521 | else | |
1522 | { | |
1523 | int i; | |
1524 | ||
1525 | fprintf (file, " (%s)", version_string); | |
1526 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1527 | putc (' ', file); | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1532 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1533 | |
7a13edea NC |
1534 | switch (st_other) |
1535 | { | |
1536 | case 0: break; | |
1537 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1538 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1539 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1540 | default: | |
1541 | /* Some other non-defined flags are also present, so print | |
1542 | everything hex. */ | |
1543 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1544 | } | |
252b5132 | 1545 | |
587ff49e | 1546 | fprintf (file, " %s", name); |
252b5132 RH |
1547 | } |
1548 | break; | |
1549 | } | |
1550 | } | |
252b5132 | 1551 | |
252b5132 RH |
1552 | /* Allocate an ELF string table--force the first byte to be zero. */ |
1553 | ||
1554 | struct bfd_strtab_hash * | |
217aa764 | 1555 | _bfd_elf_stringtab_init (void) |
252b5132 RH |
1556 | { |
1557 | struct bfd_strtab_hash *ret; | |
1558 | ||
1559 | ret = _bfd_stringtab_init (); | |
1560 | if (ret != NULL) | |
1561 | { | |
1562 | bfd_size_type loc; | |
1563 | ||
b34976b6 | 1564 | loc = _bfd_stringtab_add (ret, "", TRUE, FALSE); |
252b5132 RH |
1565 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1); |
1566 | if (loc == (bfd_size_type) -1) | |
1567 | { | |
1568 | _bfd_stringtab_free (ret); | |
1569 | ret = NULL; | |
1570 | } | |
1571 | } | |
1572 | return ret; | |
1573 | } | |
1574 | \f | |
1575 | /* ELF .o/exec file reading */ | |
1576 | ||
c044fabd | 1577 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1578 | |
b34976b6 | 1579 | bfd_boolean |
217aa764 | 1580 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1581 | { |
4fbb74a6 AM |
1582 | Elf_Internal_Shdr *hdr; |
1583 | Elf_Internal_Ehdr *ehdr; | |
1584 | const struct elf_backend_data *bed; | |
90937f86 | 1585 | const char *name; |
bf67003b NC |
1586 | bfd_boolean ret = TRUE; |
1587 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 1588 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 1589 | static unsigned int nesting = 0; |
252b5132 | 1590 | |
4fbb74a6 AM |
1591 | if (shindex >= elf_numsections (abfd)) |
1592 | return FALSE; | |
1593 | ||
bf67003b NC |
1594 | if (++ nesting > 3) |
1595 | { | |
1596 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
1597 | sections, each the string indicies pointing to the next in the | |
1598 | loop. Detect this here, by refusing to load a section that we are | |
1599 | already in the process of loading. We only trigger this test if | |
1600 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
1601 | can expect to recurse at least once. |
1602 | ||
1603 | FIXME: It would be better if this array was attached to the bfd, | |
1604 | rather than being held in a static pointer. */ | |
1605 | ||
1606 | if (sections_being_created_abfd != abfd) | |
1607 | sections_being_created = NULL; | |
bf67003b NC |
1608 | if (sections_being_created == NULL) |
1609 | { | |
1610 | /* FIXME: It would be more efficient to attach this array to the bfd somehow. */ | |
1611 | sections_being_created = (bfd_boolean *) | |
1612 | bfd_zalloc (abfd, elf_numsections (abfd) * sizeof (bfd_boolean)); | |
5a4b0ccc | 1613 | sections_being_created_abfd = abfd; |
bf67003b NC |
1614 | } |
1615 | if (sections_being_created [shindex]) | |
1616 | { | |
1617 | (*_bfd_error_handler) | |
1618 | (_("%B: warning: loop in section dependencies detected"), abfd); | |
1619 | return FALSE; | |
1620 | } | |
1621 | sections_being_created [shindex] = TRUE; | |
1622 | } | |
1623 | ||
4fbb74a6 AM |
1624 | hdr = elf_elfsections (abfd)[shindex]; |
1625 | ehdr = elf_elfheader (abfd); | |
1626 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 1627 | hdr->sh_name); |
933d961a | 1628 | if (name == NULL) |
bf67003b | 1629 | goto fail; |
252b5132 | 1630 | |
4fbb74a6 | 1631 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
1632 | switch (hdr->sh_type) |
1633 | { | |
1634 | case SHT_NULL: | |
1635 | /* Inactive section. Throw it away. */ | |
bf67003b | 1636 | goto success; |
252b5132 | 1637 | |
bf67003b NC |
1638 | case SHT_PROGBITS: /* Normal section with contents. */ |
1639 | case SHT_NOBITS: /* .bss section. */ | |
1640 | case SHT_HASH: /* .hash section. */ | |
1641 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1642 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1643 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1644 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 1645 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 1646 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
1647 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1648 | goto success; | |
252b5132 | 1649 | |
797fc050 | 1650 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 1651 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
1652 | goto fail; |
1653 | ||
cfcac11d NC |
1654 | if (hdr->sh_link > elf_numsections (abfd)) |
1655 | { | |
caa83f8b | 1656 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
1657 | field set to SHN_BEFORE or SHN_AFTER. */ |
1658 | switch (bfd_get_arch (abfd)) | |
1659 | { | |
caa83f8b | 1660 | case bfd_arch_i386: |
cfcac11d NC |
1661 | case bfd_arch_sparc: |
1662 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
1663 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
1664 | break; | |
1665 | /* Otherwise fall through. */ | |
1666 | default: | |
bf67003b | 1667 | goto fail; |
cfcac11d NC |
1668 | } |
1669 | } | |
1670 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 1671 | goto fail; |
cfcac11d | 1672 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
1673 | { |
1674 | Elf_Internal_Shdr *dynsymhdr; | |
1675 | ||
1676 | /* The shared libraries distributed with hpux11 have a bogus | |
1677 | sh_link field for the ".dynamic" section. Find the | |
1678 | string table for the ".dynsym" section instead. */ | |
1679 | if (elf_dynsymtab (abfd) != 0) | |
1680 | { | |
1681 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
1682 | hdr->sh_link = dynsymhdr->sh_link; | |
1683 | } | |
1684 | else | |
1685 | { | |
1686 | unsigned int i, num_sec; | |
1687 | ||
1688 | num_sec = elf_numsections (abfd); | |
1689 | for (i = 1; i < num_sec; i++) | |
1690 | { | |
1691 | dynsymhdr = elf_elfsections (abfd)[i]; | |
1692 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
1693 | { | |
1694 | hdr->sh_link = dynsymhdr->sh_link; | |
1695 | break; | |
1696 | } | |
1697 | } | |
1698 | } | |
1699 | } | |
bf67003b | 1700 | goto success; |
797fc050 | 1701 | |
bf67003b | 1702 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 1703 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 1704 | goto success; |
252b5132 | 1705 | |
a50b2160 | 1706 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
1707 | goto fail; |
1708 | ||
3337c1e5 | 1709 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
1710 | { |
1711 | if (hdr->sh_size != 0) | |
bf67003b | 1712 | goto fail; |
eee3b786 AM |
1713 | /* Some assemblers erroneously set sh_info to one with a |
1714 | zero sh_size. ld sees this as a global symbol count | |
1715 | of (unsigned) -1. Fix it here. */ | |
1716 | hdr->sh_info = 0; | |
bf67003b | 1717 | goto success; |
eee3b786 | 1718 | } |
bf67003b | 1719 | |
252b5132 RH |
1720 | BFD_ASSERT (elf_onesymtab (abfd) == 0); |
1721 | elf_onesymtab (abfd) = shindex; | |
1722 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1723 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1724 | abfd->flags |= HAS_SYMS; | |
1725 | ||
1726 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
1727 | SHF_ALLOC is set, and this is a shared object, then we also |
1728 | treat this section as a BFD section. We can not base the | |
1729 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1730 | set in a relocatable object file, which would confuse the | |
1731 | linker. */ | |
252b5132 RH |
1732 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
1733 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
1734 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1735 | shindex)) | |
bf67003b | 1736 | goto fail; |
252b5132 | 1737 | |
1b3a8575 AM |
1738 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
1739 | can't read symbols without that section loaded as well. It | |
1740 | is most likely specified by the next section header. */ | |
1741 | if (elf_elfsections (abfd)[elf_symtab_shndx (abfd)]->sh_link != shindex) | |
1742 | { | |
1743 | unsigned int i, num_sec; | |
1744 | ||
1745 | num_sec = elf_numsections (abfd); | |
1746 | for (i = shindex + 1; i < num_sec; i++) | |
1747 | { | |
1748 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1749 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1750 | && hdr2->sh_link == shindex) | |
1751 | break; | |
1752 | } | |
1753 | if (i == num_sec) | |
1754 | for (i = 1; i < shindex; i++) | |
1755 | { | |
1756 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1757 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1758 | && hdr2->sh_link == shindex) | |
1759 | break; | |
1760 | } | |
1761 | if (i != shindex) | |
bf67003b | 1762 | ret = bfd_section_from_shdr (abfd, i); |
1b3a8575 | 1763 | } |
bf67003b | 1764 | goto success; |
252b5132 | 1765 | |
bf67003b | 1766 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 1767 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 1768 | goto success; |
252b5132 | 1769 | |
a50b2160 | 1770 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
1771 | goto fail; |
1772 | ||
eee3b786 AM |
1773 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
1774 | { | |
1775 | if (hdr->sh_size != 0) | |
bf67003b NC |
1776 | goto fail; |
1777 | ||
eee3b786 AM |
1778 | /* Some linkers erroneously set sh_info to one with a |
1779 | zero sh_size. ld sees this as a global symbol count | |
1780 | of (unsigned) -1. Fix it here. */ | |
1781 | hdr->sh_info = 0; | |
bf67003b | 1782 | goto success; |
eee3b786 | 1783 | } |
bf67003b | 1784 | |
252b5132 RH |
1785 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); |
1786 | elf_dynsymtab (abfd) = shindex; | |
1787 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1788 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1789 | abfd->flags |= HAS_SYMS; | |
1790 | ||
1791 | /* Besides being a symbol table, we also treat this as a regular | |
1792 | section, so that objcopy can handle it. */ | |
bf67003b NC |
1793 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1794 | goto success; | |
252b5132 | 1795 | |
bf67003b | 1796 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
9ad5cbcf | 1797 | if (elf_symtab_shndx (abfd) == shindex) |
bf67003b | 1798 | goto success; |
9ad5cbcf | 1799 | |
1b3a8575 | 1800 | BFD_ASSERT (elf_symtab_shndx (abfd) == 0); |
9ad5cbcf AM |
1801 | elf_symtab_shndx (abfd) = shindex; |
1802 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1803 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
bf67003b | 1804 | goto success; |
9ad5cbcf | 1805 | |
bf67003b | 1806 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 1807 | if (hdr->bfd_section != NULL) |
bf67003b NC |
1808 | goto success; |
1809 | ||
252b5132 RH |
1810 | if (ehdr->e_shstrndx == shindex) |
1811 | { | |
1812 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1813 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 1814 | goto success; |
252b5132 | 1815 | } |
bf67003b | 1816 | |
1b3a8575 AM |
1817 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
1818 | { | |
1819 | symtab_strtab: | |
1820 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1821 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 1822 | goto success; |
1b3a8575 | 1823 | } |
bf67003b | 1824 | |
1b3a8575 AM |
1825 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
1826 | { | |
1827 | dynsymtab_strtab: | |
1828 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1829 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
1830 | elf_elfsections (abfd)[shindex] = hdr; | |
1831 | /* We also treat this as a regular section, so that objcopy | |
1832 | can handle it. */ | |
bf67003b NC |
1833 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1834 | shindex); | |
1835 | goto success; | |
1b3a8575 | 1836 | } |
252b5132 | 1837 | |
1b3a8575 AM |
1838 | /* If the string table isn't one of the above, then treat it as a |
1839 | regular section. We need to scan all the headers to be sure, | |
1840 | just in case this strtab section appeared before the above. */ | |
1841 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
1842 | { | |
1843 | unsigned int i, num_sec; | |
252b5132 | 1844 | |
1b3a8575 AM |
1845 | num_sec = elf_numsections (abfd); |
1846 | for (i = 1; i < num_sec; i++) | |
1847 | { | |
1848 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1849 | if (hdr2->sh_link == shindex) | |
1850 | { | |
933d961a JJ |
1851 | /* Prevent endless recursion on broken objects. */ |
1852 | if (i == shindex) | |
bf67003b | 1853 | goto fail; |
1b3a8575 | 1854 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 1855 | goto fail; |
1b3a8575 AM |
1856 | if (elf_onesymtab (abfd) == i) |
1857 | goto symtab_strtab; | |
1858 | if (elf_dynsymtab (abfd) == i) | |
1859 | goto dynsymtab_strtab; | |
1860 | } | |
1861 | } | |
1862 | } | |
bf67003b NC |
1863 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1864 | goto success; | |
252b5132 RH |
1865 | |
1866 | case SHT_REL: | |
1867 | case SHT_RELA: | |
1868 | /* *These* do a lot of work -- but build no sections! */ | |
1869 | { | |
1870 | asection *target_sect; | |
d4730f92 | 1871 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 1872 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 BS |
1873 | struct bfd_elf_section_data *esdt; |
1874 | bfd_size_type amt; | |
252b5132 | 1875 | |
aa2ca951 JJ |
1876 | if (hdr->sh_entsize |
1877 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 1878 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 1879 | goto fail; |
a50b2160 | 1880 | |
03ae5f59 | 1881 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 1882 | if (hdr->sh_link >= num_sec) |
03ae5f59 ILT |
1883 | { |
1884 | ((*_bfd_error_handler) | |
d003868e AM |
1885 | (_("%B: invalid link %lu for reloc section %s (index %u)"), |
1886 | abfd, hdr->sh_link, name, shindex)); | |
bf67003b NC |
1887 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1888 | shindex); | |
1889 | goto success; | |
03ae5f59 ILT |
1890 | } |
1891 | ||
252b5132 RH |
1892 | /* For some incomprehensible reason Oracle distributes |
1893 | libraries for Solaris in which some of the objects have | |
1894 | bogus sh_link fields. It would be nice if we could just | |
1895 | reject them, but, unfortunately, some people need to use | |
1896 | them. We scan through the section headers; if we find only | |
1897 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
1898 | to it. I hope this doesn't break anything. |
1899 | ||
1900 | Don't do it on executable nor shared library. */ | |
1901 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
1902 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
1903 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
1904 | { | |
9ad5cbcf | 1905 | unsigned int scan; |
252b5132 RH |
1906 | int found; |
1907 | ||
1908 | found = 0; | |
9ad5cbcf | 1909 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
1910 | { |
1911 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
1912 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
1913 | { | |
1914 | if (found != 0) | |
1915 | { | |
1916 | found = 0; | |
1917 | break; | |
1918 | } | |
1919 | found = scan; | |
1920 | } | |
1921 | } | |
1922 | if (found != 0) | |
1923 | hdr->sh_link = found; | |
1924 | } | |
1925 | ||
1926 | /* Get the symbol table. */ | |
1b3a8575 AM |
1927 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
1928 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 1929 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 1930 | goto fail; |
252b5132 RH |
1931 | |
1932 | /* If this reloc section does not use the main symbol table we | |
1933 | don't treat it as a reloc section. BFD can't adequately | |
1934 | represent such a section, so at least for now, we don't | |
c044fabd | 1935 | try. We just present it as a normal section. We also |
60bcf0fa | 1936 | can't use it as a reloc section if it points to the null |
83b89087 L |
1937 | section, an invalid section, another reloc section, or its |
1938 | sh_link points to the null section. */ | |
185ef66d | 1939 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 1940 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 1941 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
1942 | || hdr->sh_info >= num_sec |
1943 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
1944 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
1945 | { |
1946 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
1947 | shindex); | |
1948 | goto success; | |
1949 | } | |
252b5132 RH |
1950 | |
1951 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
1952 | goto fail; |
1953 | ||
252b5132 RH |
1954 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
1955 | if (target_sect == NULL) | |
bf67003b | 1956 | goto fail; |
252b5132 | 1957 | |
d4730f92 BS |
1958 | esdt = elf_section_data (target_sect); |
1959 | if (hdr->sh_type == SHT_RELA) | |
1960 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 1961 | else |
d4730f92 BS |
1962 | p_hdr = &esdt->rel.hdr; |
1963 | ||
1964 | BFD_ASSERT (*p_hdr == NULL); | |
1965 | amt = sizeof (*hdr2); | |
1966 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
1967 | if (hdr2 == NULL) | |
bf67003b | 1968 | goto fail; |
252b5132 | 1969 | *hdr2 = *hdr; |
d4730f92 | 1970 | *p_hdr = hdr2; |
252b5132 | 1971 | elf_elfsections (abfd)[shindex] = hdr2; |
d9bc7a44 | 1972 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
1973 | target_sect->flags |= SEC_RELOC; |
1974 | target_sect->relocation = NULL; | |
1975 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
1976 | /* In the section to which the relocations apply, mark whether |
1977 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 1978 | if (hdr->sh_size != 0) |
d4730f92 BS |
1979 | { |
1980 | if (hdr->sh_type == SHT_RELA) | |
1981 | target_sect->use_rela_p = 1; | |
1982 | } | |
252b5132 | 1983 | abfd->flags |= HAS_RELOC; |
bf67003b | 1984 | goto success; |
252b5132 | 1985 | } |
252b5132 RH |
1986 | |
1987 | case SHT_GNU_verdef: | |
1988 | elf_dynverdef (abfd) = shindex; | |
1989 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
1990 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
1991 | goto success; | |
252b5132 RH |
1992 | |
1993 | case SHT_GNU_versym: | |
a50b2160 | 1994 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
1995 | goto fail; |
1996 | ||
252b5132 RH |
1997 | elf_dynversym (abfd) = shindex; |
1998 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
1999 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2000 | goto success; | |
252b5132 RH |
2001 | |
2002 | case SHT_GNU_verneed: | |
2003 | elf_dynverref (abfd) = shindex; | |
2004 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2005 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2006 | goto success; | |
252b5132 RH |
2007 | |
2008 | case SHT_SHLIB: | |
bf67003b | 2009 | goto success; |
252b5132 | 2010 | |
dbb410c3 | 2011 | case SHT_GROUP: |
44534af3 | 2012 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2013 | goto fail; |
2014 | ||
6dc132d9 | 2015 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2016 | goto fail; |
2017 | ||
dbb410c3 AM |
2018 | if (hdr->contents != NULL) |
2019 | { | |
2020 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
1783205a | 2021 | unsigned int n_elt = hdr->sh_size / GRP_ENTRY_SIZE; |
dbb410c3 AM |
2022 | asection *s; |
2023 | ||
b885599b AM |
2024 | if (idx->flags & GRP_COMDAT) |
2025 | hdr->bfd_section->flags | |
2026 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
2027 | ||
45c5e9ed L |
2028 | /* We try to keep the same section order as it comes in. */ |
2029 | idx += n_elt; | |
dbb410c3 | 2030 | while (--n_elt != 0) |
1783205a NC |
2031 | { |
2032 | --idx; | |
2033 | ||
2034 | if (idx->shdr != NULL | |
2035 | && (s = idx->shdr->bfd_section) != NULL | |
2036 | && elf_next_in_group (s) != NULL) | |
2037 | { | |
2038 | elf_next_in_group (hdr->bfd_section) = s; | |
2039 | break; | |
2040 | } | |
2041 | } | |
dbb410c3 | 2042 | } |
bf67003b | 2043 | goto success; |
dbb410c3 | 2044 | |
252b5132 | 2045 | default: |
104d59d1 JM |
2046 | /* Possibly an attributes section. */ |
2047 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2048 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2049 | { | |
2050 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2051 | goto fail; |
104d59d1 | 2052 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2053 | goto success; |
104d59d1 JM |
2054 | } |
2055 | ||
252b5132 | 2056 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2057 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2058 | goto success; |
3eb70a79 L |
2059 | |
2060 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2061 | { | |
2062 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2063 | /* FIXME: How to properly handle allocated section reserved | |
2064 | for applications? */ | |
2065 | (*_bfd_error_handler) | |
2066 | (_("%B: don't know how to handle allocated, application " | |
2067 | "specific section `%s' [0x%8x]"), | |
2068 | abfd, name, hdr->sh_type); | |
2069 | else | |
bf67003b NC |
2070 | { |
2071 | /* Allow sections reserved for applications. */ | |
2072 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2073 | shindex); | |
2074 | goto success; | |
2075 | } | |
3eb70a79 L |
2076 | } |
2077 | else if (hdr->sh_type >= SHT_LOPROC | |
2078 | && hdr->sh_type <= SHT_HIPROC) | |
2079 | /* FIXME: We should handle this section. */ | |
2080 | (*_bfd_error_handler) | |
2081 | (_("%B: don't know how to handle processor specific section " | |
2082 | "`%s' [0x%8x]"), | |
2083 | abfd, name, hdr->sh_type); | |
2084 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) | |
ff15b240 NC |
2085 | { |
2086 | /* Unrecognised OS-specific sections. */ | |
2087 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2088 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2089 | required to correctly process the section and the file should |
ff15b240 NC |
2090 | be rejected with an error message. */ |
2091 | (*_bfd_error_handler) | |
2092 | (_("%B: don't know how to handle OS specific section " | |
2093 | "`%s' [0x%8x]"), | |
2094 | abfd, name, hdr->sh_type); | |
2095 | else | |
bf67003b NC |
2096 | { |
2097 | /* Otherwise it should be processed. */ | |
2098 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2099 | goto success; | |
2100 | } | |
ff15b240 | 2101 | } |
3eb70a79 L |
2102 | else |
2103 | /* FIXME: We should handle this section. */ | |
2104 | (*_bfd_error_handler) | |
2105 | (_("%B: don't know how to handle section `%s' [0x%8x]"), | |
2106 | abfd, name, hdr->sh_type); | |
2107 | ||
bf67003b | 2108 | goto fail; |
252b5132 RH |
2109 | } |
2110 | ||
bf67003b NC |
2111 | fail: |
2112 | ret = FALSE; | |
2113 | success: | |
e5b470e2 | 2114 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2115 | sections_being_created [shindex] = FALSE; |
2116 | if (-- nesting == 0) | |
5a4b0ccc NC |
2117 | { |
2118 | sections_being_created = NULL; | |
2119 | sections_being_created_abfd = abfd; | |
2120 | } | |
bf67003b | 2121 | return ret; |
252b5132 RH |
2122 | } |
2123 | ||
87d72d41 | 2124 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2125 | |
87d72d41 AM |
2126 | Elf_Internal_Sym * |
2127 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2128 | bfd *abfd, | |
2129 | unsigned long r_symndx) | |
ec338859 | 2130 | { |
ec338859 AM |
2131 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2132 | ||
a5d1b3b5 AM |
2133 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2134 | { | |
2135 | Elf_Internal_Shdr *symtab_hdr; | |
2136 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2137 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2138 | |
a5d1b3b5 AM |
2139 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2140 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2141 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2142 | return NULL; |
9ad5cbcf | 2143 | |
a5d1b3b5 AM |
2144 | if (cache->abfd != abfd) |
2145 | { | |
2146 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2147 | cache->abfd = abfd; | |
2148 | } | |
2149 | cache->indx[ent] = r_symndx; | |
ec338859 | 2150 | } |
a5d1b3b5 | 2151 | |
87d72d41 | 2152 | return &cache->sym[ent]; |
ec338859 AM |
2153 | } |
2154 | ||
252b5132 RH |
2155 | /* Given an ELF section number, retrieve the corresponding BFD |
2156 | section. */ | |
2157 | ||
2158 | asection * | |
91d6fa6a | 2159 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2160 | { |
91d6fa6a | 2161 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2162 | return NULL; |
91d6fa6a | 2163 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2164 | } |
2165 | ||
b35d266b | 2166 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2167 | { |
0112cd26 NC |
2168 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2169 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2170 | }; |
2171 | ||
b35d266b | 2172 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2173 | { |
0112cd26 NC |
2174 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
2175 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2176 | }; |
2177 | ||
b35d266b | 2178 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2179 | { |
0112cd26 NC |
2180 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2181 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2182 | /* There are more DWARF sections than these, but they needn't be added here |
2183 | unless you have to cope with broken compilers that don't emit section | |
2184 | attributes or you want to help the user writing assembler. */ | |
0112cd26 NC |
2185 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2186 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2187 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2188 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2189 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2190 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, | |
2191 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2192 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2193 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2194 | }; |
2195 | ||
b35d266b | 2196 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2197 | { |
0112cd26 NC |
2198 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2199 | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2200 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2201 | }; |
2202 | ||
b35d266b | 2203 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2204 | { |
0112cd26 | 2205 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
68efed41 | 2206 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
0112cd26 NC |
2207 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2208 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
2209 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, | |
2210 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
2211 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, | |
2212 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2213 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2214 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2215 | }; |
2216 | ||
b35d266b | 2217 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2218 | { |
0112cd26 NC |
2219 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2220 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2221 | }; |
2222 | ||
b35d266b | 2223 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2224 | { |
0112cd26 NC |
2225 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2226 | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2227 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, | |
2228 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2229 | }; |
2230 | ||
b35d266b | 2231 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2232 | { |
0112cd26 NC |
2233 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
2234 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2235 | }; |
2236 | ||
b35d266b | 2237 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2238 | { |
0112cd26 NC |
2239 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
2240 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, | |
2241 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2242 | }; |
2243 | ||
b35d266b | 2244 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2245 | { |
0112cd26 NC |
2246 | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
2247 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2248 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2249 | }; |
2250 | ||
b35d266b | 2251 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2252 | { |
0112cd26 NC |
2253 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2254 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2255 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, | |
2256 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2257 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2258 | }; |
2259 | ||
b35d266b | 2260 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2261 | { |
0112cd26 NC |
2262 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2263 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2264 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2265 | /* See struct bfd_elf_special_section declaration for the semantics of |
2266 | this special case where .prefix_length != strlen (.prefix). */ | |
2267 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
0112cd26 | 2268 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2269 | }; |
2270 | ||
b35d266b | 2271 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2272 | { |
0112cd26 NC |
2273 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2274 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2275 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2276 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2277 | }; |
2278 | ||
1b315056 CS |
2279 | static const struct bfd_elf_special_section special_sections_z[] = |
2280 | { | |
2281 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, | |
2282 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
2283 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2284 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2285 | { NULL, 0, 0, 0, 0 } | |
2286 | }; | |
2287 | ||
e4c93b56 | 2288 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2289 | { |
7f4d3958 | 2290 | special_sections_b, /* 'b' */ |
98ece1b3 | 2291 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2292 | special_sections_d, /* 'd' */ |
2293 | NULL, /* 'e' */ | |
2294 | special_sections_f, /* 'f' */ | |
2295 | special_sections_g, /* 'g' */ | |
2296 | special_sections_h, /* 'h' */ | |
2297 | special_sections_i, /* 'i' */ | |
2298 | NULL, /* 'j' */ | |
2299 | NULL, /* 'k' */ | |
2300 | special_sections_l, /* 'l' */ | |
2301 | NULL, /* 'm' */ | |
2302 | special_sections_n, /* 'n' */ | |
2303 | NULL, /* 'o' */ | |
2304 | special_sections_p, /* 'p' */ | |
2305 | NULL, /* 'q' */ | |
2306 | special_sections_r, /* 'r' */ | |
2307 | special_sections_s, /* 's' */ | |
2308 | special_sections_t, /* 't' */ | |
1b315056 CS |
2309 | NULL, /* 'u' */ |
2310 | NULL, /* 'v' */ | |
2311 | NULL, /* 'w' */ | |
2312 | NULL, /* 'x' */ | |
2313 | NULL, /* 'y' */ | |
2314 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2315 | }; |
2316 | ||
551b43fd AM |
2317 | const struct bfd_elf_special_section * |
2318 | _bfd_elf_get_special_section (const char *name, | |
2319 | const struct bfd_elf_special_section *spec, | |
2320 | unsigned int rela) | |
2f89ff8d L |
2321 | { |
2322 | int i; | |
7f4d3958 | 2323 | int len; |
7f4d3958 | 2324 | |
551b43fd | 2325 | len = strlen (name); |
7f4d3958 | 2326 | |
551b43fd | 2327 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2328 | { |
2329 | int suffix_len; | |
551b43fd | 2330 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2331 | |
2332 | if (len < prefix_len) | |
2333 | continue; | |
551b43fd | 2334 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2335 | continue; |
2336 | ||
551b43fd | 2337 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2338 | if (suffix_len <= 0) |
2339 | { | |
2340 | if (name[prefix_len] != 0) | |
2341 | { | |
2342 | if (suffix_len == 0) | |
2343 | continue; | |
2344 | if (name[prefix_len] != '.' | |
2345 | && (suffix_len == -2 | |
551b43fd | 2346 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2347 | continue; |
2348 | } | |
2349 | } | |
2350 | else | |
2351 | { | |
2352 | if (len < prefix_len + suffix_len) | |
2353 | continue; | |
2354 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2355 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2356 | suffix_len) != 0) |
2357 | continue; | |
2358 | } | |
551b43fd | 2359 | return &spec[i]; |
7dcb9820 | 2360 | } |
2f89ff8d L |
2361 | |
2362 | return NULL; | |
2363 | } | |
2364 | ||
7dcb9820 | 2365 | const struct bfd_elf_special_section * |
29ef7005 | 2366 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2367 | { |
551b43fd AM |
2368 | int i; |
2369 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2370 | const struct elf_backend_data *bed; |
2f89ff8d L |
2371 | |
2372 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2373 | if (sec->name == NULL) |
2374 | return NULL; | |
2f89ff8d | 2375 | |
29ef7005 L |
2376 | bed = get_elf_backend_data (abfd); |
2377 | spec = bed->special_sections; | |
2378 | if (spec) | |
2379 | { | |
2380 | spec = _bfd_elf_get_special_section (sec->name, | |
2381 | bed->special_sections, | |
2382 | sec->use_rela_p); | |
2383 | if (spec != NULL) | |
2384 | return spec; | |
2385 | } | |
2386 | ||
551b43fd AM |
2387 | if (sec->name[0] != '.') |
2388 | return NULL; | |
2f89ff8d | 2389 | |
551b43fd | 2390 | i = sec->name[1] - 'b'; |
1b315056 | 2391 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2392 | return NULL; |
2393 | ||
2394 | spec = special_sections[i]; | |
2f89ff8d | 2395 | |
551b43fd AM |
2396 | if (spec == NULL) |
2397 | return NULL; | |
2398 | ||
2399 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2400 | } |
2401 | ||
b34976b6 | 2402 | bfd_boolean |
217aa764 | 2403 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2404 | { |
2405 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2406 | const struct elf_backend_data *bed; |
7dcb9820 | 2407 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2408 | |
f0abc2a1 AM |
2409 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2410 | if (sdata == NULL) | |
2411 | { | |
a50b1753 NC |
2412 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
2413 | sizeof (*sdata)); | |
f0abc2a1 AM |
2414 | if (sdata == NULL) |
2415 | return FALSE; | |
217aa764 | 2416 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2417 | } |
bf572ba0 | 2418 | |
551b43fd AM |
2419 | /* Indicate whether or not this section should use RELA relocations. */ |
2420 | bed = get_elf_backend_data (abfd); | |
2421 | sec->use_rela_p = bed->default_use_rela_p; | |
2422 | ||
e843e0f8 L |
2423 | /* When we read a file, we don't need to set ELF section type and |
2424 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2425 | anyway. We will set ELF section type and flags for all linker | |
2426 | created sections. If user specifies BFD section flags, we will | |
2427 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2428 | elf_fake_sections. Special handling for .init_array/.fini_array |
2429 | output sections since they may contain .ctors/.dtors input | |
2430 | sections. We don't want _bfd_elf_init_private_section_data to | |
2431 | copy ELF section type from .ctors/.dtors input sections. */ | |
2432 | if (abfd->direction != read_direction | |
3496cb2a | 2433 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2434 | { |
551b43fd | 2435 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2436 | if (ssect != NULL |
2437 | && (!sec->flags | |
2438 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2439 | || ssect->type == SHT_INIT_ARRAY | |
2440 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2441 | { |
2442 | elf_section_type (sec) = ssect->type; | |
2443 | elf_section_flags (sec) = ssect->attr; | |
2444 | } | |
2f89ff8d L |
2445 | } |
2446 | ||
f592407e | 2447 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2448 | } |
2449 | ||
2450 | /* Create a new bfd section from an ELF program header. | |
2451 | ||
2452 | Since program segments have no names, we generate a synthetic name | |
2453 | of the form segment<NUM>, where NUM is generally the index in the | |
2454 | program header table. For segments that are split (see below) we | |
2455 | generate the names segment<NUM>a and segment<NUM>b. | |
2456 | ||
2457 | Note that some program segments may have a file size that is different than | |
2458 | (less than) the memory size. All this means is that at execution the | |
2459 | system must allocate the amount of memory specified by the memory size, | |
2460 | but only initialize it with the first "file size" bytes read from the | |
2461 | file. This would occur for example, with program segments consisting | |
2462 | of combined data+bss. | |
2463 | ||
2464 | To handle the above situation, this routine generates TWO bfd sections | |
2465 | for the single program segment. The first has the length specified by | |
2466 | the file size of the segment, and the second has the length specified | |
2467 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2468 | into its initialized and uninitialized parts. |
252b5132 RH |
2469 | |
2470 | */ | |
2471 | ||
b34976b6 | 2472 | bfd_boolean |
217aa764 AM |
2473 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2474 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2475 | int hdr_index, |
a50b1753 | 2476 | const char *type_name) |
252b5132 RH |
2477 | { |
2478 | asection *newsect; | |
2479 | char *name; | |
2480 | char namebuf[64]; | |
d4c88bbb | 2481 | size_t len; |
252b5132 RH |
2482 | int split; |
2483 | ||
2484 | split = ((hdr->p_memsz > 0) | |
2485 | && (hdr->p_filesz > 0) | |
2486 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2487 | |
2488 | if (hdr->p_filesz > 0) | |
252b5132 | 2489 | { |
91d6fa6a | 2490 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2491 | len = strlen (namebuf) + 1; |
a50b1753 | 2492 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2493 | if (!name) |
2494 | return FALSE; | |
2495 | memcpy (name, namebuf, len); | |
2496 | newsect = bfd_make_section (abfd, name); | |
2497 | if (newsect == NULL) | |
2498 | return FALSE; | |
2499 | newsect->vma = hdr->p_vaddr; | |
2500 | newsect->lma = hdr->p_paddr; | |
2501 | newsect->size = hdr->p_filesz; | |
2502 | newsect->filepos = hdr->p_offset; | |
2503 | newsect->flags |= SEC_HAS_CONTENTS; | |
2504 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2505 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2506 | { |
d5191d0c AM |
2507 | newsect->flags |= SEC_ALLOC; |
2508 | newsect->flags |= SEC_LOAD; | |
2509 | if (hdr->p_flags & PF_X) | |
2510 | { | |
2511 | /* FIXME: all we known is that it has execute PERMISSION, | |
2512 | may be data. */ | |
2513 | newsect->flags |= SEC_CODE; | |
2514 | } | |
2515 | } | |
2516 | if (!(hdr->p_flags & PF_W)) | |
2517 | { | |
2518 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2519 | } |
252b5132 RH |
2520 | } |
2521 | ||
d5191d0c | 2522 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2523 | { |
d5191d0c AM |
2524 | bfd_vma align; |
2525 | ||
91d6fa6a | 2526 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2527 | len = strlen (namebuf) + 1; |
a50b1753 | 2528 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2529 | if (!name) |
b34976b6 | 2530 | return FALSE; |
d4c88bbb | 2531 | memcpy (name, namebuf, len); |
252b5132 RH |
2532 | newsect = bfd_make_section (abfd, name); |
2533 | if (newsect == NULL) | |
b34976b6 | 2534 | return FALSE; |
252b5132 RH |
2535 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2536 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2537 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2538 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2539 | align = newsect->vma & -newsect->vma; | |
2540 | if (align == 0 || align > hdr->p_align) | |
2541 | align = hdr->p_align; | |
2542 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2543 | if (hdr->p_type == PT_LOAD) |
2544 | { | |
d5191d0c AM |
2545 | /* Hack for gdb. Segments that have not been modified do |
2546 | not have their contents written to a core file, on the | |
2547 | assumption that a debugger can find the contents in the | |
2548 | executable. We flag this case by setting the fake | |
2549 | section size to zero. Note that "real" bss sections will | |
2550 | always have their contents dumped to the core file. */ | |
2551 | if (bfd_get_format (abfd) == bfd_core) | |
2552 | newsect->size = 0; | |
252b5132 RH |
2553 | newsect->flags |= SEC_ALLOC; |
2554 | if (hdr->p_flags & PF_X) | |
2555 | newsect->flags |= SEC_CODE; | |
2556 | } | |
2557 | if (!(hdr->p_flags & PF_W)) | |
2558 | newsect->flags |= SEC_READONLY; | |
2559 | } | |
2560 | ||
b34976b6 | 2561 | return TRUE; |
252b5132 RH |
2562 | } |
2563 | ||
b34976b6 | 2564 | bfd_boolean |
91d6fa6a | 2565 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2566 | { |
9c5bfbb7 | 2567 | const struct elf_backend_data *bed; |
20cfcaae NC |
2568 | |
2569 | switch (hdr->p_type) | |
2570 | { | |
2571 | case PT_NULL: | |
91d6fa6a | 2572 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2573 | |
2574 | case PT_LOAD: | |
91d6fa6a | 2575 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2576 | |
2577 | case PT_DYNAMIC: | |
91d6fa6a | 2578 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
2579 | |
2580 | case PT_INTERP: | |
91d6fa6a | 2581 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
2582 | |
2583 | case PT_NOTE: | |
91d6fa6a | 2584 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 2585 | return FALSE; |
718175fa | 2586 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) |
b34976b6 AM |
2587 | return FALSE; |
2588 | return TRUE; | |
20cfcaae NC |
2589 | |
2590 | case PT_SHLIB: | |
91d6fa6a | 2591 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
2592 | |
2593 | case PT_PHDR: | |
91d6fa6a | 2594 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 2595 | |
811072d8 | 2596 | case PT_GNU_EH_FRAME: |
91d6fa6a | 2597 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
2598 | "eh_frame_hdr"); |
2599 | ||
2b05f1b7 | 2600 | case PT_GNU_STACK: |
91d6fa6a | 2601 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 2602 | |
8c37241b | 2603 | case PT_GNU_RELRO: |
91d6fa6a | 2604 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 2605 | |
20cfcaae | 2606 | default: |
8c1acd09 | 2607 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 2608 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 2609 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
2610 | } |
2611 | } | |
2612 | ||
d4730f92 BS |
2613 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
2614 | REL or RELA. */ | |
2615 | ||
2616 | Elf_Internal_Shdr * | |
2617 | _bfd_elf_single_rel_hdr (asection *sec) | |
2618 | { | |
2619 | if (elf_section_data (sec)->rel.hdr) | |
2620 | { | |
2621 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
2622 | return elf_section_data (sec)->rel.hdr; | |
2623 | } | |
2624 | else | |
2625 | return elf_section_data (sec)->rela.hdr; | |
2626 | } | |
2627 | ||
2628 | /* Allocate and initialize a section-header for a new reloc section, | |
2629 | containing relocations against ASECT. It is stored in RELDATA. If | |
2630 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
2631 | relocations. */ | |
23bc299b | 2632 | |
5d13b3b3 | 2633 | static bfd_boolean |
217aa764 | 2634 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 2635 | struct bfd_elf_section_reloc_data *reldata, |
217aa764 AM |
2636 | asection *asect, |
2637 | bfd_boolean use_rela_p) | |
23bc299b | 2638 | { |
d4730f92 | 2639 | Elf_Internal_Shdr *rel_hdr; |
23bc299b | 2640 | char *name; |
9c5bfbb7 | 2641 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2642 | bfd_size_type amt; |
2643 | ||
2644 | amt = sizeof (Elf_Internal_Shdr); | |
2645 | BFD_ASSERT (reldata->hdr == NULL); | |
2646 | rel_hdr = bfd_zalloc (abfd, amt); | |
2647 | reldata->hdr = rel_hdr; | |
23bc299b | 2648 | |
d324f6d6 | 2649 | amt = sizeof ".rela" + strlen (asect->name); |
a50b1753 | 2650 | name = (char *) bfd_alloc (abfd, amt); |
23bc299b | 2651 | if (name == NULL) |
b34976b6 | 2652 | return FALSE; |
23bc299b MM |
2653 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); |
2654 | rel_hdr->sh_name = | |
2b0f7ef9 | 2655 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, |
b34976b6 | 2656 | FALSE); |
23bc299b | 2657 | if (rel_hdr->sh_name == (unsigned int) -1) |
b34976b6 | 2658 | return FALSE; |
23bc299b MM |
2659 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
2660 | rel_hdr->sh_entsize = (use_rela_p | |
2661 | ? bed->s->sizeof_rela | |
2662 | : bed->s->sizeof_rel); | |
72de5009 | 2663 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
23bc299b MM |
2664 | rel_hdr->sh_flags = 0; |
2665 | rel_hdr->sh_addr = 0; | |
2666 | rel_hdr->sh_size = 0; | |
2667 | rel_hdr->sh_offset = 0; | |
2668 | ||
b34976b6 | 2669 | return TRUE; |
23bc299b MM |
2670 | } |
2671 | ||
94be91de JB |
2672 | /* Return the default section type based on the passed in section flags. */ |
2673 | ||
2674 | int | |
2675 | bfd_elf_get_default_section_type (flagword flags) | |
2676 | { | |
2677 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 2678 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
2679 | return SHT_NOBITS; |
2680 | return SHT_PROGBITS; | |
2681 | } | |
2682 | ||
d4730f92 BS |
2683 | struct fake_section_arg |
2684 | { | |
2685 | struct bfd_link_info *link_info; | |
2686 | bfd_boolean failed; | |
2687 | }; | |
2688 | ||
252b5132 RH |
2689 | /* Set up an ELF internal section header for a section. */ |
2690 | ||
252b5132 | 2691 | static void |
d4730f92 | 2692 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 2693 | { |
d4730f92 | 2694 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 2695 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 2696 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 2697 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 2698 | unsigned int sh_type; |
252b5132 | 2699 | |
d4730f92 | 2700 | if (arg->failed) |
252b5132 RH |
2701 | { |
2702 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 2703 | loop. */ |
252b5132 RH |
2704 | return; |
2705 | } | |
2706 | ||
d4730f92 | 2707 | this_hdr = &esd->this_hdr; |
252b5132 | 2708 | |
e57b5356 AM |
2709 | this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
2710 | asect->name, FALSE); | |
2711 | if (this_hdr->sh_name == (unsigned int) -1) | |
252b5132 | 2712 | { |
d4730f92 | 2713 | arg->failed = TRUE; |
252b5132 RH |
2714 | return; |
2715 | } | |
2716 | ||
a4d8e49b | 2717 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
2718 | |
2719 | if ((asect->flags & SEC_ALLOC) != 0 | |
2720 | || asect->user_set_vma) | |
2721 | this_hdr->sh_addr = asect->vma; | |
2722 | else | |
2723 | this_hdr->sh_addr = 0; | |
2724 | ||
2725 | this_hdr->sh_offset = 0; | |
eea6121a | 2726 | this_hdr->sh_size = asect->size; |
252b5132 | 2727 | this_hdr->sh_link = 0; |
72de5009 | 2728 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
2729 | /* The sh_entsize and sh_info fields may have been set already by |
2730 | copy_private_section_data. */ | |
2731 | ||
2732 | this_hdr->bfd_section = asect; | |
2733 | this_hdr->contents = NULL; | |
2734 | ||
3cddba1e L |
2735 | /* If the section type is unspecified, we set it based on |
2736 | asect->flags. */ | |
98ece1b3 AM |
2737 | if ((asect->flags & SEC_GROUP) != 0) |
2738 | sh_type = SHT_GROUP; | |
98ece1b3 | 2739 | else |
94be91de | 2740 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 2741 | |
3cddba1e | 2742 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
2743 | this_hdr->sh_type = sh_type; |
2744 | else if (this_hdr->sh_type == SHT_NOBITS | |
2745 | && sh_type == SHT_PROGBITS | |
2746 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 2747 | { |
98ece1b3 AM |
2748 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
2749 | allow the link to proceed. This can happen when users link | |
2750 | non-bss input sections to bss output sections, or emit data | |
2751 | to a bss output section via a linker script. */ | |
2752 | (*_bfd_error_handler) | |
58f0869b | 2753 | (_("warning: section `%A' type changed to PROGBITS"), asect); |
98ece1b3 | 2754 | this_hdr->sh_type = sh_type; |
3cddba1e L |
2755 | } |
2756 | ||
2f89ff8d | 2757 | switch (this_hdr->sh_type) |
252b5132 | 2758 | { |
2f89ff8d | 2759 | default: |
2f89ff8d L |
2760 | break; |
2761 | ||
2762 | case SHT_STRTAB: | |
2763 | case SHT_INIT_ARRAY: | |
2764 | case SHT_FINI_ARRAY: | |
2765 | case SHT_PREINIT_ARRAY: | |
2766 | case SHT_NOTE: | |
2767 | case SHT_NOBITS: | |
2768 | case SHT_PROGBITS: | |
2769 | break; | |
2770 | ||
2771 | case SHT_HASH: | |
c7ac6ff8 | 2772 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 2773 | break; |
5de3bf90 | 2774 | |
2f89ff8d | 2775 | case SHT_DYNSYM: |
252b5132 | 2776 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
2777 | break; |
2778 | ||
2779 | case SHT_DYNAMIC: | |
252b5132 | 2780 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
2781 | break; |
2782 | ||
2783 | case SHT_RELA: | |
2784 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
2785 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2786 | break; | |
2787 | ||
2788 | case SHT_REL: | |
2789 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
2790 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2791 | break; | |
2792 | ||
2793 | case SHT_GNU_versym: | |
252b5132 | 2794 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
2795 | break; |
2796 | ||
2797 | case SHT_GNU_verdef: | |
252b5132 RH |
2798 | this_hdr->sh_entsize = 0; |
2799 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2800 | cverdefs. The linker will set cverdefs, but sh_info will be |
2801 | zero. */ | |
252b5132 RH |
2802 | if (this_hdr->sh_info == 0) |
2803 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2804 | else | |
2805 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
2806 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
2807 | break; |
2808 | ||
2809 | case SHT_GNU_verneed: | |
252b5132 RH |
2810 | this_hdr->sh_entsize = 0; |
2811 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2812 | cverrefs. The linker will set cverrefs, but sh_info will be |
2813 | zero. */ | |
252b5132 RH |
2814 | if (this_hdr->sh_info == 0) |
2815 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
2816 | else | |
2817 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
2818 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
2819 | break; |
2820 | ||
2821 | case SHT_GROUP: | |
1783205a | 2822 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 2823 | break; |
fdc90cb4 JJ |
2824 | |
2825 | case SHT_GNU_HASH: | |
2826 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
2827 | break; | |
dbb410c3 | 2828 | } |
252b5132 RH |
2829 | |
2830 | if ((asect->flags & SEC_ALLOC) != 0) | |
2831 | this_hdr->sh_flags |= SHF_ALLOC; | |
2832 | if ((asect->flags & SEC_READONLY) == 0) | |
2833 | this_hdr->sh_flags |= SHF_WRITE; | |
2834 | if ((asect->flags & SEC_CODE) != 0) | |
2835 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
2836 | if ((asect->flags & SEC_MERGE) != 0) |
2837 | { | |
2838 | this_hdr->sh_flags |= SHF_MERGE; | |
2839 | this_hdr->sh_entsize = asect->entsize; | |
2840 | if ((asect->flags & SEC_STRINGS) != 0) | |
2841 | this_hdr->sh_flags |= SHF_STRINGS; | |
2842 | } | |
1126897b | 2843 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 2844 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 2845 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
2846 | { |
2847 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
2848 | if (asect->size == 0 |
2849 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 2850 | { |
3a800eb9 | 2851 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 2852 | |
704afa60 | 2853 | this_hdr->sh_size = 0; |
3a800eb9 AM |
2854 | if (o != NULL) |
2855 | { | |
704afa60 | 2856 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
2857 | if (this_hdr->sh_size != 0) |
2858 | this_hdr->sh_type = SHT_NOBITS; | |
2859 | } | |
704afa60 JJ |
2860 | } |
2861 | } | |
18ae9cc1 L |
2862 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
2863 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 2864 | |
d4730f92 BS |
2865 | /* If the section has relocs, set up a section header for the |
2866 | SHT_REL[A] section. If two relocation sections are required for | |
2867 | this section, it is up to the processor-specific back-end to | |
2868 | create the other. */ | |
2869 | if ((asect->flags & SEC_RELOC) != 0) | |
2870 | { | |
2871 | /* When doing a relocatable link, create both REL and RELA sections if | |
2872 | needed. */ | |
2873 | if (arg->link_info | |
2874 | /* Do the normal setup if we wouldn't create any sections here. */ | |
2875 | && esd->rel.count + esd->rela.count > 0 | |
2876 | && (arg->link_info->relocatable || arg->link_info->emitrelocations)) | |
2877 | { | |
2878 | if (esd->rel.count && esd->rel.hdr == NULL | |
2879 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, asect, FALSE)) | |
2880 | { | |
2881 | arg->failed = TRUE; | |
2882 | return; | |
2883 | } | |
2884 | if (esd->rela.count && esd->rela.hdr == NULL | |
2885 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, asect, TRUE)) | |
2886 | { | |
2887 | arg->failed = TRUE; | |
2888 | return; | |
2889 | } | |
2890 | } | |
2891 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
2892 | (asect->use_rela_p | |
2893 | ? &esd->rela : &esd->rel), | |
2894 | asect, | |
2895 | asect->use_rela_p)) | |
2896 | arg->failed = TRUE; | |
2897 | } | |
2898 | ||
252b5132 | 2899 | /* Check for processor-specific section types. */ |
0414f35b | 2900 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
2901 | if (bed->elf_backend_fake_sections |
2902 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
d4730f92 | 2903 | arg->failed = TRUE; |
252b5132 | 2904 | |
42bb2e33 | 2905 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
2906 | { |
2907 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 2908 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
2909 | this_hdr->sh_type = sh_type; |
2910 | } | |
252b5132 RH |
2911 | } |
2912 | ||
bcacc0f5 AM |
2913 | /* Fill in the contents of a SHT_GROUP section. Called from |
2914 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
2915 | when ELF targets use the generic linker, ld. Called for ld -r | |
2916 | from bfd_elf_final_link. */ | |
dbb410c3 | 2917 | |
1126897b | 2918 | void |
217aa764 | 2919 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 2920 | { |
a50b1753 | 2921 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 2922 | asection *elt, *first; |
dbb410c3 | 2923 | unsigned char *loc; |
b34976b6 | 2924 | bfd_boolean gas; |
dbb410c3 | 2925 | |
7e4111ad L |
2926 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
2927 | elfxx-ia64.c. */ | |
2928 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
2929 | || *failedptr) |
2930 | return; | |
2931 | ||
bcacc0f5 AM |
2932 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
2933 | { | |
2934 | unsigned long symindx = 0; | |
2935 | ||
2936 | /* elf_group_id will have been set up by objcopy and the | |
2937 | generic linker. */ | |
2938 | if (elf_group_id (sec) != NULL) | |
2939 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 2940 | |
bcacc0f5 AM |
2941 | if (symindx == 0) |
2942 | { | |
2943 | /* If called from the assembler, swap_out_syms will have set up | |
2944 | elf_section_syms. */ | |
2945 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
2946 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
2947 | } | |
2948 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
2949 | } | |
2950 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 2951 | { |
bcacc0f5 AM |
2952 | /* The ELF backend linker sets sh_info to -2 when the group |
2953 | signature symbol is global, and thus the index can't be | |
2954 | set until all local symbols are output. */ | |
2955 | asection *igroup = elf_sec_group (elf_next_in_group (sec)); | |
2956 | struct bfd_elf_section_data *sec_data = elf_section_data (igroup); | |
2957 | unsigned long symndx = sec_data->this_hdr.sh_info; | |
2958 | unsigned long extsymoff = 0; | |
2959 | struct elf_link_hash_entry *h; | |
2960 | ||
2961 | if (!elf_bad_symtab (igroup->owner)) | |
2962 | { | |
2963 | Elf_Internal_Shdr *symtab_hdr; | |
2964 | ||
2965 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
2966 | extsymoff = symtab_hdr->sh_info; | |
2967 | } | |
2968 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
2969 | while (h->root.type == bfd_link_hash_indirect | |
2970 | || h->root.type == bfd_link_hash_warning) | |
2971 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2972 | ||
2973 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 2974 | } |
dbb410c3 | 2975 | |
1126897b | 2976 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 2977 | gas = TRUE; |
dbb410c3 AM |
2978 | if (sec->contents == NULL) |
2979 | { | |
b34976b6 | 2980 | gas = FALSE; |
a50b1753 | 2981 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
2982 | |
2983 | /* Arrange for the section to be written out. */ | |
2984 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
2985 | if (sec->contents == NULL) |
2986 | { | |
b34976b6 | 2987 | *failedptr = TRUE; |
dbb410c3 AM |
2988 | return; |
2989 | } | |
2990 | } | |
2991 | ||
eea6121a | 2992 | loc = sec->contents + sec->size; |
dbb410c3 | 2993 | |
9dce4196 AM |
2994 | /* Get the pointer to the first section in the group that gas |
2995 | squirreled away here. objcopy arranges for this to be set to the | |
2996 | start of the input section group. */ | |
2997 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
2998 | |
2999 | /* First element is a flag word. Rest of section is elf section | |
3000 | indices for all the sections of the group. Write them backwards | |
3001 | just to keep the group in the same order as given in .section | |
3002 | directives, not that it matters. */ | |
3003 | while (elt != NULL) | |
3004 | { | |
9dce4196 | 3005 | asection *s; |
9dce4196 | 3006 | |
9dce4196 | 3007 | s = elt; |
415f38a6 AM |
3008 | if (!gas) |
3009 | s = s->output_section; | |
3010 | if (s != NULL | |
3011 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3012 | { |
415f38a6 AM |
3013 | unsigned int idx = elf_section_data (s)->this_idx; |
3014 | ||
01e1a5bc | 3015 | loc -= 4; |
01e1a5bc NC |
3016 | H_PUT_32 (abfd, idx, loc); |
3017 | } | |
945906ff | 3018 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3019 | if (elt == first) |
3020 | break; | |
dbb410c3 AM |
3021 | } |
3022 | ||
3d7f7666 | 3023 | if ((loc -= 4) != sec->contents) |
9dce4196 | 3024 | abort (); |
dbb410c3 | 3025 | |
9dce4196 | 3026 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3027 | } |
3028 | ||
252b5132 RH |
3029 | /* Assign all ELF section numbers. The dummy first section is handled here |
3030 | too. The link/info pointers for the standard section types are filled | |
3031 | in here too, while we're at it. */ | |
3032 | ||
b34976b6 | 3033 | static bfd_boolean |
da9f89d4 | 3034 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3035 | { |
3036 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3037 | asection *sec; | |
2b0f7ef9 | 3038 | unsigned int section_number, secn; |
252b5132 | 3039 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3040 | struct bfd_elf_section_data *d; |
3516e984 | 3041 | bfd_boolean need_symtab; |
252b5132 RH |
3042 | |
3043 | section_number = 1; | |
3044 | ||
2b0f7ef9 JJ |
3045 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3046 | ||
da9f89d4 L |
3047 | /* SHT_GROUP sections are in relocatable files only. */ |
3048 | if (link_info == NULL || link_info->relocatable) | |
252b5132 | 3049 | { |
da9f89d4 | 3050 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3051 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3052 | { |
5daa8fe7 | 3053 | d = elf_section_data (sec); |
da9f89d4 L |
3054 | |
3055 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3056 | { |
5daa8fe7 | 3057 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3058 | { |
3059 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3060 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3061 | abfd->section_count--; |
da9f89d4 | 3062 | } |
08a40648 | 3063 | else |
4fbb74a6 | 3064 | d->this_idx = section_number++; |
da9f89d4 | 3065 | } |
47cc2cf5 PB |
3066 | } |
3067 | } | |
3068 | ||
3069 | for (sec = abfd->sections; sec; sec = sec->next) | |
3070 | { | |
3071 | d = elf_section_data (sec); | |
3072 | ||
3073 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3074 | d->this_idx = section_number++; |
2b0f7ef9 | 3075 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); |
d4730f92 | 3076 | if (d->rel.hdr) |
2b0f7ef9 | 3077 | { |
d4730f92 BS |
3078 | d->rel.idx = section_number++; |
3079 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3080 | } |
d4730f92 BS |
3081 | else |
3082 | d->rel.idx = 0; | |
23bc299b | 3083 | |
d4730f92 | 3084 | if (d->rela.hdr) |
2b0f7ef9 | 3085 | { |
d4730f92 BS |
3086 | d->rela.idx = section_number++; |
3087 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3088 | } |
23bc299b | 3089 | else |
d4730f92 | 3090 | d->rela.idx = 0; |
252b5132 RH |
3091 | } |
3092 | ||
12bd6957 | 3093 | elf_shstrtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3094 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
12bd6957 | 3095 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); |
252b5132 | 3096 | |
3516e984 L |
3097 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3098 | || (link_info == NULL | |
3099 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3100 | == HAS_RELOC))); | |
3101 | if (need_symtab) | |
252b5132 | 3102 | { |
12bd6957 | 3103 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3104 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3105 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3106 | { |
12bd6957 | 3107 | elf_symtab_shndx (abfd) = section_number++; |
9ad5cbcf AM |
3108 | t->symtab_shndx_hdr.sh_name |
3109 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
b34976b6 | 3110 | ".symtab_shndx", FALSE); |
9ad5cbcf | 3111 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3112 | return FALSE; |
9ad5cbcf | 3113 | } |
12bd6957 | 3114 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3115 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3116 | } |
3117 | ||
1c52a645 L |
3118 | if (section_number >= SHN_LORESERVE) |
3119 | { | |
3120 | _bfd_error_handler (_("%B: too many sections: %u"), | |
3121 | abfd, section_number); | |
3122 | return FALSE; | |
3123 | } | |
3124 | ||
2b0f7ef9 JJ |
3125 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); |
3126 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
9ad5cbcf AM |
3127 | |
3128 | elf_numsections (abfd) = section_number; | |
252b5132 RH |
3129 | elf_elfheader (abfd)->e_shnum = section_number; |
3130 | ||
3131 | /* Set up the list of section header pointers, in agreement with the | |
3132 | indices. */ | |
a50b1753 NC |
3133 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
3134 | sizeof (Elf_Internal_Shdr *)); | |
252b5132 | 3135 | if (i_shdrp == NULL) |
b34976b6 | 3136 | return FALSE; |
252b5132 | 3137 | |
a50b1753 NC |
3138 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
3139 | sizeof (Elf_Internal_Shdr)); | |
252b5132 RH |
3140 | if (i_shdrp[0] == NULL) |
3141 | { | |
3142 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3143 | return FALSE; |
252b5132 | 3144 | } |
252b5132 RH |
3145 | |
3146 | elf_elfsections (abfd) = i_shdrp; | |
3147 | ||
12bd6957 | 3148 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3149 | if (need_symtab) |
252b5132 | 3150 | { |
12bd6957 | 3151 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3152 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3153 | { |
12bd6957 AM |
3154 | i_shdrp[elf_symtab_shndx (abfd)] = &t->symtab_shndx_hdr; |
3155 | t->symtab_shndx_hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3156 | } |
12bd6957 AM |
3157 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3158 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3159 | } |
38ce5b11 | 3160 | |
252b5132 RH |
3161 | for (sec = abfd->sections; sec; sec = sec->next) |
3162 | { | |
252b5132 RH |
3163 | asection *s; |
3164 | const char *name; | |
3165 | ||
91d6fa6a NC |
3166 | d = elf_section_data (sec); |
3167 | ||
252b5132 | 3168 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3169 | if (d->rel.idx != 0) |
3170 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3171 | if (d->rela.idx != 0) | |
3172 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3173 | |
3174 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3175 | ||
3176 | /* sh_link of a reloc section is the section index of the symbol | |
3177 | table. sh_info is the section index of the section to which | |
3178 | the relocation entries apply. */ | |
d4730f92 | 3179 | if (d->rel.idx != 0) |
252b5132 | 3180 | { |
12bd6957 | 3181 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3182 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3183 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3184 | } |
d4730f92 | 3185 | if (d->rela.idx != 0) |
23bc299b | 3186 | { |
12bd6957 | 3187 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3188 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3189 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3190 | } |
252b5132 | 3191 | |
38ce5b11 L |
3192 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3193 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3194 | { | |
3195 | s = elf_linked_to_section (sec); | |
3196 | if (s) | |
38ce5b11 | 3197 | { |
f2876037 | 3198 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3199 | if (link_info != NULL) |
38ce5b11 | 3200 | { |
f2876037 | 3201 | /* Check discarded linkonce section. */ |
dbaa2011 | 3202 | if (discarded_section (s)) |
38ce5b11 | 3203 | { |
ccd2ec6a L |
3204 | asection *kept; |
3205 | (*_bfd_error_handler) | |
3206 | (_("%B: sh_link of section `%A' points to discarded section `%A' of `%B'"), | |
3207 | abfd, d->this_hdr.bfd_section, | |
3208 | s, s->owner); | |
3209 | /* Point to the kept section if it has the same | |
3210 | size as the discarded one. */ | |
c0f00686 | 3211 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3212 | if (kept == NULL) |
185d09ad | 3213 | { |
ccd2ec6a L |
3214 | bfd_set_error (bfd_error_bad_value); |
3215 | return FALSE; | |
185d09ad | 3216 | } |
ccd2ec6a | 3217 | s = kept; |
38ce5b11 | 3218 | } |
e424ecc8 | 3219 | |
ccd2ec6a L |
3220 | s = s->output_section; |
3221 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3222 | } |
f2876037 L |
3223 | else |
3224 | { | |
3225 | /* Handle objcopy. */ | |
3226 | if (s->output_section == NULL) | |
3227 | { | |
3228 | (*_bfd_error_handler) | |
3229 | (_("%B: sh_link of section `%A' points to removed section `%A' of `%B'"), | |
3230 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3231 | bfd_set_error (bfd_error_bad_value); | |
3232 | return FALSE; | |
3233 | } | |
3234 | s = s->output_section; | |
3235 | } | |
ccd2ec6a L |
3236 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3237 | } | |
3238 | else | |
3239 | { | |
3240 | /* PR 290: | |
3241 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3242 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3243 | sh_info fields. Hence we could get the situation | |
08a40648 | 3244 | where s is NULL. */ |
ccd2ec6a L |
3245 | const struct elf_backend_data *bed |
3246 | = get_elf_backend_data (abfd); | |
3247 | if (bed->link_order_error_handler) | |
3248 | bed->link_order_error_handler | |
3249 | (_("%B: warning: sh_link not set for section `%A'"), | |
3250 | abfd, sec); | |
38ce5b11 L |
3251 | } |
3252 | } | |
3253 | ||
252b5132 RH |
3254 | switch (d->this_hdr.sh_type) |
3255 | { | |
3256 | case SHT_REL: | |
3257 | case SHT_RELA: | |
3258 | /* A reloc section which we are treating as a normal BFD | |
3259 | section. sh_link is the section index of the symbol | |
3260 | table. sh_info is the section index of the section to | |
3261 | which the relocation entries apply. We assume that an | |
3262 | allocated reloc section uses the dynamic symbol table. | |
3263 | FIXME: How can we be sure? */ | |
3264 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3265 | if (s != NULL) | |
3266 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3267 | ||
3268 | /* We look up the section the relocs apply to by name. */ | |
3269 | name = sec->name; | |
3270 | if (d->this_hdr.sh_type == SHT_REL) | |
3271 | name += 4; | |
3272 | else | |
3273 | name += 5; | |
3274 | s = bfd_get_section_by_name (abfd, name); | |
3275 | if (s != NULL) | |
9ef5d938 L |
3276 | { |
3277 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3278 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3279 | } | |
252b5132 RH |
3280 | break; |
3281 | ||
3282 | case SHT_STRTAB: | |
3283 | /* We assume that a section named .stab*str is a stabs | |
3284 | string section. We look for a section with the same name | |
3285 | but without the trailing ``str'', and set its sh_link | |
3286 | field to point to this section. */ | |
0112cd26 | 3287 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3288 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3289 | { | |
3290 | size_t len; | |
3291 | char *alc; | |
3292 | ||
3293 | len = strlen (sec->name); | |
a50b1753 | 3294 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3295 | if (alc == NULL) |
b34976b6 | 3296 | return FALSE; |
d4c88bbb | 3297 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3298 | alc[len - 3] = '\0'; |
3299 | s = bfd_get_section_by_name (abfd, alc); | |
3300 | free (alc); | |
3301 | if (s != NULL) | |
3302 | { | |
3303 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3304 | ||
3305 | /* This is a .stab section. */ | |
0594c12d AM |
3306 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3307 | elf_section_data (s)->this_hdr.sh_entsize | |
3308 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3309 | } |
3310 | } | |
3311 | break; | |
3312 | ||
3313 | case SHT_DYNAMIC: | |
3314 | case SHT_DYNSYM: | |
3315 | case SHT_GNU_verneed: | |
3316 | case SHT_GNU_verdef: | |
3317 | /* sh_link is the section header index of the string table | |
3318 | used for the dynamic entries, or the symbol table, or the | |
3319 | version strings. */ | |
3320 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3321 | if (s != NULL) | |
3322 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3323 | break; | |
3324 | ||
7f1204bb JJ |
3325 | case SHT_GNU_LIBLIST: |
3326 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3327 | list used for the dynamic entries, or the symbol table, or |
3328 | the version strings. */ | |
7f1204bb JJ |
3329 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3330 | ? ".dynstr" : ".gnu.libstr"); | |
3331 | if (s != NULL) | |
3332 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3333 | break; | |
3334 | ||
252b5132 | 3335 | case SHT_HASH: |
fdc90cb4 | 3336 | case SHT_GNU_HASH: |
252b5132 RH |
3337 | case SHT_GNU_versym: |
3338 | /* sh_link is the section header index of the symbol table | |
3339 | this hash table or version table is for. */ | |
3340 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3341 | if (s != NULL) | |
3342 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3343 | break; | |
dbb410c3 AM |
3344 | |
3345 | case SHT_GROUP: | |
12bd6957 | 3346 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3347 | } |
3348 | } | |
3349 | ||
2b0f7ef9 | 3350 | for (secn = 1; secn < section_number; ++secn) |
9ad5cbcf AM |
3351 | if (i_shdrp[secn] == NULL) |
3352 | i_shdrp[secn] = i_shdrp[0]; | |
3353 | else | |
3354 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
3355 | i_shdrp[secn]->sh_name); | |
b34976b6 | 3356 | return TRUE; |
252b5132 RH |
3357 | } |
3358 | ||
5372391b | 3359 | static bfd_boolean |
217aa764 | 3360 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3361 | { |
3362 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3363 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3364 | if (bed->elf_backend_sym_is_global) |
3365 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3366 | |
e47bf690 | 3367 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3368 | || bfd_is_und_section (bfd_get_section (sym)) |
3369 | || bfd_is_com_section (bfd_get_section (sym))); | |
3370 | } | |
3371 | ||
5372391b | 3372 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 3373 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
3374 | |
3375 | static bfd_boolean | |
3376 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
3377 | { | |
c6d8cab4 L |
3378 | elf_symbol_type *type_ptr; |
3379 | ||
3380 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3381 | return FALSE; | |
3382 | ||
3383 | type_ptr = elf_symbol_from (abfd, sym); | |
3384 | return ((type_ptr != NULL | |
3385 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
3386 | && bfd_is_abs_section (sym->section)) | |
3387 | || !(sym->section->owner == abfd | |
0f0a5e58 | 3388 | || (sym->section->output_section->owner == abfd |
2633a79c AM |
3389 | && sym->section->output_offset == 0) |
3390 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
3391 | } |
3392 | ||
2633a79c AM |
3393 | /* Map symbol from it's internal number to the external number, moving |
3394 | all local symbols to be at the head of the list. */ | |
3395 | ||
b34976b6 | 3396 | static bfd_boolean |
12bd6957 | 3397 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 3398 | { |
dc810e39 | 3399 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
3400 | asymbol **syms = bfd_get_outsymbols (abfd); |
3401 | asymbol **sect_syms; | |
dc810e39 AM |
3402 | unsigned int num_locals = 0; |
3403 | unsigned int num_globals = 0; | |
3404 | unsigned int num_locals2 = 0; | |
3405 | unsigned int num_globals2 = 0; | |
252b5132 | 3406 | int max_index = 0; |
dc810e39 | 3407 | unsigned int idx; |
252b5132 RH |
3408 | asection *asect; |
3409 | asymbol **new_syms; | |
252b5132 RH |
3410 | |
3411 | #ifdef DEBUG | |
3412 | fprintf (stderr, "elf_map_symbols\n"); | |
3413 | fflush (stderr); | |
3414 | #endif | |
3415 | ||
252b5132 RH |
3416 | for (asect = abfd->sections; asect; asect = asect->next) |
3417 | { | |
3418 | if (max_index < asect->index) | |
3419 | max_index = asect->index; | |
3420 | } | |
3421 | ||
3422 | max_index++; | |
a50b1753 | 3423 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 3424 | if (sect_syms == NULL) |
b34976b6 | 3425 | return FALSE; |
252b5132 | 3426 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 3427 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 3428 | |
079e9a2f AM |
3429 | /* Init sect_syms entries for any section symbols we have already |
3430 | decided to output. */ | |
252b5132 RH |
3431 | for (idx = 0; idx < symcount; idx++) |
3432 | { | |
dc810e39 | 3433 | asymbol *sym = syms[idx]; |
c044fabd | 3434 | |
252b5132 | 3435 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 3436 | && sym->value == 0 |
2633a79c AM |
3437 | && !ignore_section_sym (abfd, sym) |
3438 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 3439 | { |
5372391b | 3440 | asection *sec = sym->section; |
252b5132 | 3441 | |
5372391b AM |
3442 | if (sec->owner != abfd) |
3443 | sec = sec->output_section; | |
252b5132 | 3444 | |
5372391b | 3445 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
3446 | } |
3447 | } | |
3448 | ||
252b5132 RH |
3449 | /* Classify all of the symbols. */ |
3450 | for (idx = 0; idx < symcount; idx++) | |
3451 | { | |
2633a79c | 3452 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 3453 | num_globals++; |
2633a79c AM |
3454 | else if (!ignore_section_sym (abfd, syms[idx])) |
3455 | num_locals++; | |
252b5132 | 3456 | } |
079e9a2f | 3457 | |
5372391b | 3458 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
3459 | sections will already have a section symbol in outsymbols, but |
3460 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
3461 | at least in that case. */ | |
252b5132 RH |
3462 | for (asect = abfd->sections; asect; asect = asect->next) |
3463 | { | |
079e9a2f | 3464 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3465 | { |
079e9a2f | 3466 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
3467 | num_locals++; |
3468 | else | |
3469 | num_globals++; | |
252b5132 RH |
3470 | } |
3471 | } | |
3472 | ||
3473 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 NC |
3474 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
3475 | sizeof (asymbol *)); | |
dc810e39 | 3476 | |
252b5132 | 3477 | if (new_syms == NULL) |
b34976b6 | 3478 | return FALSE; |
252b5132 RH |
3479 | |
3480 | for (idx = 0; idx < symcount; idx++) | |
3481 | { | |
3482 | asymbol *sym = syms[idx]; | |
dc810e39 | 3483 | unsigned int i; |
252b5132 | 3484 | |
2633a79c AM |
3485 | if (sym_is_global (abfd, sym)) |
3486 | i = num_locals + num_globals2++; | |
3487 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
3488 | i = num_locals2++; |
3489 | else | |
2633a79c | 3490 | continue; |
252b5132 RH |
3491 | new_syms[i] = sym; |
3492 | sym->udata.i = i + 1; | |
3493 | } | |
3494 | for (asect = abfd->sections; asect; asect = asect->next) | |
3495 | { | |
079e9a2f | 3496 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3497 | { |
079e9a2f | 3498 | asymbol *sym = asect->symbol; |
dc810e39 | 3499 | unsigned int i; |
252b5132 | 3500 | |
079e9a2f | 3501 | sect_syms[asect->index] = sym; |
252b5132 RH |
3502 | if (!sym_is_global (abfd, sym)) |
3503 | i = num_locals2++; | |
3504 | else | |
3505 | i = num_locals + num_globals2++; | |
3506 | new_syms[i] = sym; | |
3507 | sym->udata.i = i + 1; | |
3508 | } | |
3509 | } | |
3510 | ||
3511 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
3512 | ||
12bd6957 | 3513 | *pnum_locals = num_locals; |
b34976b6 | 3514 | return TRUE; |
252b5132 RH |
3515 | } |
3516 | ||
3517 | /* Align to the maximum file alignment that could be required for any | |
3518 | ELF data structure. */ | |
3519 | ||
268b6b39 | 3520 | static inline file_ptr |
217aa764 | 3521 | align_file_position (file_ptr off, int align) |
252b5132 RH |
3522 | { |
3523 | return (off + align - 1) & ~(align - 1); | |
3524 | } | |
3525 | ||
3526 | /* Assign a file position to a section, optionally aligning to the | |
3527 | required section alignment. */ | |
3528 | ||
217aa764 AM |
3529 | file_ptr |
3530 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
3531 | file_ptr offset, | |
3532 | bfd_boolean align) | |
252b5132 | 3533 | { |
72de5009 AM |
3534 | if (align && i_shdrp->sh_addralign > 1) |
3535 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
3536 | i_shdrp->sh_offset = offset; |
3537 | if (i_shdrp->bfd_section != NULL) | |
3538 | i_shdrp->bfd_section->filepos = offset; | |
3539 | if (i_shdrp->sh_type != SHT_NOBITS) | |
3540 | offset += i_shdrp->sh_size; | |
3541 | return offset; | |
3542 | } | |
3543 | ||
3544 | /* Compute the file positions we are going to put the sections at, and | |
3545 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
3546 | is not NULL, this is being called by the ELF backend linker. */ | |
3547 | ||
b34976b6 | 3548 | bfd_boolean |
217aa764 AM |
3549 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
3550 | struct bfd_link_info *link_info) | |
252b5132 | 3551 | { |
9c5bfbb7 | 3552 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3553 | struct fake_section_arg fsargs; |
b34976b6 | 3554 | bfd_boolean failed; |
4b6c0f2f | 3555 | struct bfd_strtab_hash *strtab = NULL; |
252b5132 | 3556 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 3557 | bfd_boolean need_symtab; |
252b5132 RH |
3558 | |
3559 | if (abfd->output_has_begun) | |
b34976b6 | 3560 | return TRUE; |
252b5132 RH |
3561 | |
3562 | /* Do any elf backend specific processing first. */ | |
3563 | if (bed->elf_backend_begin_write_processing) | |
3564 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
3565 | ||
3566 | if (! prep_headers (abfd)) | |
b34976b6 | 3567 | return FALSE; |
252b5132 | 3568 | |
e6c51ed4 | 3569 | /* Post process the headers if necessary. */ |
78245035 | 3570 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 3571 | |
d4730f92 BS |
3572 | fsargs.failed = FALSE; |
3573 | fsargs.link_info = link_info; | |
3574 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
3575 | if (fsargs.failed) | |
b34976b6 | 3576 | return FALSE; |
252b5132 | 3577 | |
da9f89d4 | 3578 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 3579 | return FALSE; |
252b5132 RH |
3580 | |
3581 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
3582 | need_symtab = (link_info == NULL |
3583 | && (bfd_get_symcount (abfd) > 0 | |
3584 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3585 | == HAS_RELOC))); | |
3586 | if (need_symtab) | |
252b5132 RH |
3587 | { |
3588 | /* Non-zero if doing a relocatable link. */ | |
3589 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
3590 | ||
3591 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 3592 | return FALSE; |
252b5132 RH |
3593 | } |
3594 | ||
d4730f92 | 3595 | failed = FALSE; |
1126897b | 3596 | if (link_info == NULL) |
dbb410c3 | 3597 | { |
1126897b | 3598 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 3599 | if (failed) |
b34976b6 | 3600 | return FALSE; |
dbb410c3 AM |
3601 | } |
3602 | ||
252b5132 RH |
3603 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
3604 | /* sh_name was set in prep_headers. */ | |
3605 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
3606 | shstrtab_hdr->sh_flags = 0; | |
3607 | shstrtab_hdr->sh_addr = 0; | |
2b0f7ef9 | 3608 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); |
252b5132 RH |
3609 | shstrtab_hdr->sh_entsize = 0; |
3610 | shstrtab_hdr->sh_link = 0; | |
3611 | shstrtab_hdr->sh_info = 0; | |
3612 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |
3613 | shstrtab_hdr->sh_addralign = 1; | |
3614 | ||
c84fca4d | 3615 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 3616 | return FALSE; |
252b5132 | 3617 | |
3516e984 | 3618 | if (need_symtab) |
252b5132 RH |
3619 | { |
3620 | file_ptr off; | |
3621 | Elf_Internal_Shdr *hdr; | |
3622 | ||
12bd6957 | 3623 | off = elf_next_file_pos (abfd); |
252b5132 RH |
3624 | |
3625 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
b34976b6 | 3626 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3627 | |
9ad5cbcf AM |
3628 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
3629 | if (hdr->sh_size != 0) | |
b34976b6 | 3630 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf | 3631 | |
252b5132 | 3632 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 3633 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3634 | |
12bd6957 | 3635 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
3636 | |
3637 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 3638 | out. */ |
252b5132 RH |
3639 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
3640 | || ! _bfd_stringtab_emit (abfd, strtab)) | |
b34976b6 | 3641 | return FALSE; |
252b5132 RH |
3642 | _bfd_stringtab_free (strtab); |
3643 | } | |
3644 | ||
b34976b6 | 3645 | abfd->output_has_begun = TRUE; |
252b5132 | 3646 | |
b34976b6 | 3647 | return TRUE; |
252b5132 RH |
3648 | } |
3649 | ||
8ded5a0f AM |
3650 | /* Make an initial estimate of the size of the program header. If we |
3651 | get the number wrong here, we'll redo section placement. */ | |
3652 | ||
3653 | static bfd_size_type | |
3654 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
3655 | { | |
3656 | size_t segs; | |
3657 | asection *s; | |
2b05f1b7 | 3658 | const struct elf_backend_data *bed; |
8ded5a0f AM |
3659 | |
3660 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
3661 | and one for data. */ | |
3662 | segs = 2; | |
3663 | ||
3664 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3665 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3666 | { | |
3667 | /* If we have a loadable interpreter section, we need a | |
3668 | PT_INTERP segment. In this case, assume we also need a | |
3669 | PT_PHDR segment, although that may not be true for all | |
3670 | targets. */ | |
3671 | segs += 2; | |
3672 | } | |
3673 | ||
3674 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
3675 | { | |
3676 | /* We need a PT_DYNAMIC segment. */ | |
3677 | ++segs; | |
f210dcff | 3678 | } |
08a40648 | 3679 | |
ceae84aa | 3680 | if (info != NULL && info->relro) |
f210dcff L |
3681 | { |
3682 | /* We need a PT_GNU_RELRO segment. */ | |
3683 | ++segs; | |
8ded5a0f AM |
3684 | } |
3685 | ||
12bd6957 | 3686 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
3687 | { |
3688 | /* We need a PT_GNU_EH_FRAME segment. */ | |
3689 | ++segs; | |
3690 | } | |
3691 | ||
12bd6957 | 3692 | if (elf_stack_flags (abfd)) |
8ded5a0f | 3693 | { |
2b05f1b7 L |
3694 | /* We need a PT_GNU_STACK segment. */ |
3695 | ++segs; | |
3696 | } | |
94b11780 | 3697 | |
2b05f1b7 L |
3698 | for (s = abfd->sections; s != NULL; s = s->next) |
3699 | { | |
8ded5a0f | 3700 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 3701 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
3702 | { |
3703 | /* We need a PT_NOTE segment. */ | |
3704 | ++segs; | |
1c5265b5 JJ |
3705 | /* Try to create just one PT_NOTE segment |
3706 | for all adjacent loadable .note* sections. | |
3707 | gABI requires that within a PT_NOTE segment | |
3708 | (and also inside of each SHT_NOTE section) | |
3709 | each note is padded to a multiple of 4 size, | |
3710 | so we check whether the sections are correctly | |
3711 | aligned. */ | |
3712 | if (s->alignment_power == 2) | |
3713 | while (s->next != NULL | |
3714 | && s->next->alignment_power == 2 | |
3715 | && (s->next->flags & SEC_LOAD) != 0 | |
3716 | && CONST_STRNEQ (s->next->name, ".note")) | |
3717 | s = s->next; | |
8ded5a0f AM |
3718 | } |
3719 | } | |
3720 | ||
3721 | for (s = abfd->sections; s != NULL; s = s->next) | |
3722 | { | |
3723 | if (s->flags & SEC_THREAD_LOCAL) | |
3724 | { | |
3725 | /* We need a PT_TLS segment. */ | |
3726 | ++segs; | |
3727 | break; | |
3728 | } | |
3729 | } | |
3730 | ||
3731 | /* Let the backend count up any program headers it might need. */ | |
2b05f1b7 | 3732 | bed = get_elf_backend_data (abfd); |
8ded5a0f AM |
3733 | if (bed->elf_backend_additional_program_headers) |
3734 | { | |
3735 | int a; | |
3736 | ||
3737 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
3738 | if (a == -1) | |
3739 | abort (); | |
3740 | segs += a; | |
3741 | } | |
3742 | ||
3743 | return segs * bed->s->sizeof_phdr; | |
3744 | } | |
3745 | ||
2ea37f1c NC |
3746 | /* Find the segment that contains the output_section of section. */ |
3747 | ||
3748 | Elf_Internal_Phdr * | |
3749 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
3750 | { | |
3751 | struct elf_segment_map *m; | |
3752 | Elf_Internal_Phdr *p; | |
3753 | ||
12bd6957 | 3754 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
3755 | m != NULL; |
3756 | m = m->next, p++) | |
3757 | { | |
3758 | int i; | |
3759 | ||
3760 | for (i = m->count - 1; i >= 0; i--) | |
3761 | if (m->sections[i] == section) | |
3762 | return p; | |
3763 | } | |
3764 | ||
3765 | return NULL; | |
3766 | } | |
3767 | ||
252b5132 RH |
3768 | /* Create a mapping from a set of sections to a program segment. */ |
3769 | ||
217aa764 AM |
3770 | static struct elf_segment_map * |
3771 | make_mapping (bfd *abfd, | |
3772 | asection **sections, | |
3773 | unsigned int from, | |
3774 | unsigned int to, | |
3775 | bfd_boolean phdr) | |
252b5132 RH |
3776 | { |
3777 | struct elf_segment_map *m; | |
3778 | unsigned int i; | |
3779 | asection **hdrpp; | |
dc810e39 | 3780 | bfd_size_type amt; |
252b5132 | 3781 | |
dc810e39 AM |
3782 | amt = sizeof (struct elf_segment_map); |
3783 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 3784 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
3785 | if (m == NULL) |
3786 | return NULL; | |
3787 | m->next = NULL; | |
3788 | m->p_type = PT_LOAD; | |
3789 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
3790 | m->sections[i - from] = *hdrpp; | |
3791 | m->count = to - from; | |
3792 | ||
3793 | if (from == 0 && phdr) | |
3794 | { | |
3795 | /* Include the headers in the first PT_LOAD segment. */ | |
3796 | m->includes_filehdr = 1; | |
3797 | m->includes_phdrs = 1; | |
3798 | } | |
3799 | ||
3800 | return m; | |
3801 | } | |
3802 | ||
229fcec5 MM |
3803 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
3804 | on failure. */ | |
3805 | ||
3806 | struct elf_segment_map * | |
3807 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
3808 | { | |
3809 | struct elf_segment_map *m; | |
3810 | ||
a50b1753 NC |
3811 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
3812 | sizeof (struct elf_segment_map)); | |
229fcec5 MM |
3813 | if (m == NULL) |
3814 | return NULL; | |
3815 | m->next = NULL; | |
3816 | m->p_type = PT_DYNAMIC; | |
3817 | m->count = 1; | |
3818 | m->sections[0] = dynsec; | |
08a40648 | 3819 | |
229fcec5 MM |
3820 | return m; |
3821 | } | |
3822 | ||
8ded5a0f | 3823 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 3824 | |
b34976b6 | 3825 | static bfd_boolean |
3dea8fca AM |
3826 | elf_modify_segment_map (bfd *abfd, |
3827 | struct bfd_link_info *info, | |
3828 | bfd_boolean remove_empty_load) | |
252b5132 | 3829 | { |
252e386e | 3830 | struct elf_segment_map **m; |
8ded5a0f | 3831 | const struct elf_backend_data *bed; |
252b5132 | 3832 | |
8ded5a0f AM |
3833 | /* The placement algorithm assumes that non allocated sections are |
3834 | not in PT_LOAD segments. We ensure this here by removing such | |
3835 | sections from the segment map. We also remove excluded | |
252e386e AM |
3836 | sections. Finally, any PT_LOAD segment without sections is |
3837 | removed. */ | |
12bd6957 | 3838 | m = &elf_seg_map (abfd); |
252e386e | 3839 | while (*m) |
8ded5a0f AM |
3840 | { |
3841 | unsigned int i, new_count; | |
252b5132 | 3842 | |
252e386e | 3843 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 3844 | { |
252e386e AM |
3845 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
3846 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
3847 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 3848 | { |
252e386e AM |
3849 | (*m)->sections[new_count] = (*m)->sections[i]; |
3850 | new_count++; | |
8ded5a0f AM |
3851 | } |
3852 | } | |
252e386e | 3853 | (*m)->count = new_count; |
252b5132 | 3854 | |
3dea8fca | 3855 | if (remove_empty_load && (*m)->p_type == PT_LOAD && (*m)->count == 0) |
252e386e AM |
3856 | *m = (*m)->next; |
3857 | else | |
3858 | m = &(*m)->next; | |
8ded5a0f | 3859 | } |
252b5132 | 3860 | |
8ded5a0f AM |
3861 | bed = get_elf_backend_data (abfd); |
3862 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 3863 | { |
252e386e | 3864 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 3865 | return FALSE; |
252b5132 | 3866 | } |
252b5132 | 3867 | |
8ded5a0f AM |
3868 | return TRUE; |
3869 | } | |
252b5132 | 3870 | |
8ded5a0f | 3871 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 3872 | |
8ded5a0f AM |
3873 | bfd_boolean |
3874 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
3875 | { | |
3876 | unsigned int count; | |
3877 | struct elf_segment_map *m; | |
3878 | asection **sections = NULL; | |
3879 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 3880 | bfd_boolean no_user_phdrs; |
252b5132 | 3881 | |
12bd6957 | 3882 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
3883 | |
3884 | if (info != NULL) | |
3885 | info->user_phdrs = !no_user_phdrs; | |
3886 | ||
3dea8fca | 3887 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 3888 | { |
8ded5a0f AM |
3889 | asection *s; |
3890 | unsigned int i; | |
3891 | struct elf_segment_map *mfirst; | |
3892 | struct elf_segment_map **pm; | |
3893 | asection *last_hdr; | |
3894 | bfd_vma last_size; | |
3895 | unsigned int phdr_index; | |
3896 | bfd_vma maxpagesize; | |
3897 | asection **hdrpp; | |
3898 | bfd_boolean phdr_in_segment = TRUE; | |
3899 | bfd_boolean writable; | |
3900 | int tls_count = 0; | |
3901 | asection *first_tls = NULL; | |
3902 | asection *dynsec, *eh_frame_hdr; | |
3903 | bfd_size_type amt; | |
8d06853e | 3904 | bfd_vma addr_mask, wrap_to = 0; |
252b5132 | 3905 | |
8ded5a0f | 3906 | /* Select the allocated sections, and sort them. */ |
252b5132 | 3907 | |
a50b1753 NC |
3908 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
3909 | sizeof (asection *)); | |
8ded5a0f | 3910 | if (sections == NULL) |
252b5132 | 3911 | goto error_return; |
252b5132 | 3912 | |
8d06853e AM |
3913 | /* Calculate top address, avoiding undefined behaviour of shift |
3914 | left operator when shift count is equal to size of type | |
3915 | being shifted. */ | |
3916 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
3917 | addr_mask = (addr_mask << 1) + 1; | |
3918 | ||
8ded5a0f AM |
3919 | i = 0; |
3920 | for (s = abfd->sections; s != NULL; s = s->next) | |
3921 | { | |
3922 | if ((s->flags & SEC_ALLOC) != 0) | |
3923 | { | |
3924 | sections[i] = s; | |
3925 | ++i; | |
8d06853e AM |
3926 | /* A wrapping section potentially clashes with header. */ |
3927 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
3928 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
3929 | } |
3930 | } | |
3931 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
3932 | count = i; | |
252b5132 | 3933 | |
8ded5a0f | 3934 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 3935 | |
8ded5a0f | 3936 | /* Build the mapping. */ |
252b5132 | 3937 | |
8ded5a0f AM |
3938 | mfirst = NULL; |
3939 | pm = &mfirst; | |
252b5132 | 3940 | |
8ded5a0f AM |
3941 | /* If we have a .interp section, then create a PT_PHDR segment for |
3942 | the program headers and a PT_INTERP segment for the .interp | |
3943 | section. */ | |
3944 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3945 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3946 | { | |
3947 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 3948 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3949 | if (m == NULL) |
3950 | goto error_return; | |
3951 | m->next = NULL; | |
3952 | m->p_type = PT_PHDR; | |
3953 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
3954 | m->p_flags = PF_R | PF_X; | |
3955 | m->p_flags_valid = 1; | |
3956 | m->includes_phdrs = 1; | |
252b5132 | 3957 | |
8ded5a0f AM |
3958 | *pm = m; |
3959 | pm = &m->next; | |
252b5132 | 3960 | |
8ded5a0f | 3961 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 3962 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3963 | if (m == NULL) |
3964 | goto error_return; | |
3965 | m->next = NULL; | |
3966 | m->p_type = PT_INTERP; | |
3967 | m->count = 1; | |
3968 | m->sections[0] = s; | |
3969 | ||
3970 | *pm = m; | |
3971 | pm = &m->next; | |
252b5132 | 3972 | } |
8ded5a0f AM |
3973 | |
3974 | /* Look through the sections. We put sections in the same program | |
3975 | segment when the start of the second section can be placed within | |
3976 | a few bytes of the end of the first section. */ | |
3977 | last_hdr = NULL; | |
3978 | last_size = 0; | |
3979 | phdr_index = 0; | |
3980 | maxpagesize = bed->maxpagesize; | |
3981 | writable = FALSE; | |
3982 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
3983 | if (dynsec != NULL | |
3984 | && (dynsec->flags & SEC_LOAD) == 0) | |
3985 | dynsec = NULL; | |
3986 | ||
3987 | /* Deal with -Ttext or something similar such that the first section | |
3988 | is not adjacent to the program headers. This is an | |
3989 | approximation, since at this point we don't know exactly how many | |
3990 | program headers we will need. */ | |
3991 | if (count > 0) | |
252b5132 | 3992 | { |
12bd6957 | 3993 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 3994 | |
62d7a5f6 | 3995 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 3996 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 3997 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 3998 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
3999 | || (sections[0]->lma & addr_mask) < phdr_size |
4000 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
4001 | < phdr_size % maxpagesize) | |
4002 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
8ded5a0f | 4003 | phdr_in_segment = FALSE; |
252b5132 RH |
4004 | } |
4005 | ||
8ded5a0f | 4006 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4007 | { |
8ded5a0f AM |
4008 | asection *hdr; |
4009 | bfd_boolean new_segment; | |
4010 | ||
4011 | hdr = *hdrpp; | |
4012 | ||
4013 | /* See if this section and the last one will fit in the same | |
4014 | segment. */ | |
4015 | ||
4016 | if (last_hdr == NULL) | |
4017 | { | |
4018 | /* If we don't have a segment yet, then we don't need a new | |
4019 | one (we build the last one after this loop). */ | |
4020 | new_segment = FALSE; | |
4021 | } | |
4022 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4023 | { | |
4024 | /* If this section has a different relation between the | |
4025 | virtual address and the load address, then we need a new | |
4026 | segment. */ | |
4027 | new_segment = TRUE; | |
4028 | } | |
b5599592 AM |
4029 | else if (hdr->lma < last_hdr->lma + last_size |
4030 | || last_hdr->lma + last_size < last_hdr->lma) | |
4031 | { | |
4032 | /* If this section has a load address that makes it overlap | |
4033 | the previous section, then we need a new segment. */ | |
4034 | new_segment = TRUE; | |
4035 | } | |
39948a60 NC |
4036 | /* In the next test we have to be careful when last_hdr->lma is close |
4037 | to the end of the address space. If the aligned address wraps | |
4038 | around to the start of the address space, then there are no more | |
4039 | pages left in memory and it is OK to assume that the current | |
4040 | section can be included in the current segment. */ | |
4041 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4042 | > last_hdr->lma) | |
4043 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4ff73856 | 4044 | <= hdr->lma)) |
8ded5a0f AM |
4045 | { |
4046 | /* If putting this section in this segment would force us to | |
4047 | skip a page in the segment, then we need a new segment. */ | |
4048 | new_segment = TRUE; | |
4049 | } | |
4050 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
4051 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) | |
4052 | { | |
4053 | /* We don't want to put a loadable section after a | |
4054 | nonloadable section in the same segment. | |
4055 | Consider .tbss sections as loadable for this purpose. */ | |
4056 | new_segment = TRUE; | |
4057 | } | |
4058 | else if ((abfd->flags & D_PAGED) == 0) | |
4059 | { | |
4060 | /* If the file is not demand paged, which means that we | |
4061 | don't require the sections to be correctly aligned in the | |
4062 | file, then there is no other reason for a new segment. */ | |
4063 | new_segment = FALSE; | |
4064 | } | |
4065 | else if (! writable | |
4066 | && (hdr->flags & SEC_READONLY) == 0 | |
8d06853e AM |
4067 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) |
4068 | != (hdr->lma & -maxpagesize))) | |
8ded5a0f AM |
4069 | { |
4070 | /* We don't want to put a writable section in a read only | |
4071 | segment, unless they are on the same page in memory | |
4072 | anyhow. We already know that the last section does not | |
4073 | bring us past the current section on the page, so the | |
4074 | only case in which the new section is not on the same | |
4075 | page as the previous section is when the previous section | |
4076 | ends precisely on a page boundary. */ | |
4077 | new_segment = TRUE; | |
4078 | } | |
4079 | else | |
4080 | { | |
4081 | /* Otherwise, we can use the same segment. */ | |
4082 | new_segment = FALSE; | |
4083 | } | |
4084 | ||
2889e75b | 4085 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4086 | if (last_hdr != NULL |
4087 | && info != NULL | |
4088 | && info->callbacks->override_segment_assignment != NULL) | |
4089 | new_segment | |
4090 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4091 | last_hdr, | |
4092 | new_segment); | |
2889e75b | 4093 | |
8ded5a0f AM |
4094 | if (! new_segment) |
4095 | { | |
4096 | if ((hdr->flags & SEC_READONLY) == 0) | |
4097 | writable = TRUE; | |
4098 | last_hdr = hdr; | |
4099 | /* .tbss sections effectively have zero size. */ | |
4100 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4101 | != SEC_THREAD_LOCAL) | |
4102 | last_size = hdr->size; | |
4103 | else | |
4104 | last_size = 0; | |
4105 | continue; | |
4106 | } | |
4107 | ||
4108 | /* We need a new program segment. We must create a new program | |
4109 | header holding all the sections from phdr_index until hdr. */ | |
4110 | ||
4111 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4112 | if (m == NULL) | |
4113 | goto error_return; | |
4114 | ||
4115 | *pm = m; | |
4116 | pm = &m->next; | |
4117 | ||
252b5132 | 4118 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4119 | writable = TRUE; |
8ded5a0f AM |
4120 | else |
4121 | writable = FALSE; | |
4122 | ||
baaff79e JJ |
4123 | last_hdr = hdr; |
4124 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 4125 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 4126 | last_size = hdr->size; |
baaff79e JJ |
4127 | else |
4128 | last_size = 0; | |
8ded5a0f AM |
4129 | phdr_index = i; |
4130 | phdr_in_segment = FALSE; | |
252b5132 RH |
4131 | } |
4132 | ||
86b2281f AM |
4133 | /* Create a final PT_LOAD program segment, but not if it's just |
4134 | for .tbss. */ | |
4135 | if (last_hdr != NULL | |
4136 | && (i - phdr_index != 1 | |
4137 | || ((last_hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4138 | != SEC_THREAD_LOCAL))) | |
8ded5a0f AM |
4139 | { |
4140 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4141 | if (m == NULL) | |
4142 | goto error_return; | |
252b5132 | 4143 | |
8ded5a0f AM |
4144 | *pm = m; |
4145 | pm = &m->next; | |
4146 | } | |
252b5132 | 4147 | |
8ded5a0f AM |
4148 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4149 | if (dynsec != NULL) | |
4150 | { | |
4151 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4152 | if (m == NULL) | |
4153 | goto error_return; | |
4154 | *pm = m; | |
4155 | pm = &m->next; | |
4156 | } | |
252b5132 | 4157 | |
1c5265b5 JJ |
4158 | /* For each batch of consecutive loadable .note sections, |
4159 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4160 | because if we link together nonloadable .note sections and | |
4161 | loadable .note sections, we will generate two .note sections | |
4162 | in the output file. FIXME: Using names for section types is | |
4163 | bogus anyhow. */ | |
8ded5a0f AM |
4164 | for (s = abfd->sections; s != NULL; s = s->next) |
4165 | { | |
4166 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4167 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4168 | { |
1c5265b5 | 4169 | asection *s2; |
91d6fa6a NC |
4170 | |
4171 | count = 1; | |
8ded5a0f | 4172 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4173 | if (s->alignment_power == 2) |
4174 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4175 | { |
4176 | if (s2->next->alignment_power == 2 | |
4177 | && (s2->next->flags & SEC_LOAD) != 0 | |
4178 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4179 | && align_power (s2->lma + s2->size, 2) |
4180 | == s2->next->lma) | |
55b581a6 JJ |
4181 | count++; |
4182 | else | |
4183 | break; | |
4184 | } | |
1c5265b5 | 4185 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4186 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4187 | if (m == NULL) |
4188 | goto error_return; | |
4189 | m->next = NULL; | |
4190 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4191 | m->count = count; |
4192 | while (count > 1) | |
4193 | { | |
4194 | m->sections[m->count - count--] = s; | |
4195 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4196 | s = s->next; | |
4197 | } | |
4198 | m->sections[m->count - 1] = s; | |
4199 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4200 | *pm = m; |
4201 | pm = &m->next; | |
4202 | } | |
4203 | if (s->flags & SEC_THREAD_LOCAL) | |
4204 | { | |
4205 | if (! tls_count) | |
4206 | first_tls = s; | |
4207 | tls_count++; | |
4208 | } | |
4209 | } | |
252b5132 | 4210 | |
8ded5a0f AM |
4211 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4212 | if (tls_count > 0) | |
4213 | { | |
8ded5a0f AM |
4214 | amt = sizeof (struct elf_segment_map); |
4215 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4216 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4217 | if (m == NULL) |
4218 | goto error_return; | |
4219 | m->next = NULL; | |
4220 | m->p_type = PT_TLS; | |
4221 | m->count = tls_count; | |
4222 | /* Mandated PF_R. */ | |
4223 | m->p_flags = PF_R; | |
4224 | m->p_flags_valid = 1; | |
d923cae0 | 4225 | s = first_tls; |
91d6fa6a | 4226 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 4227 | { |
d923cae0 L |
4228 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
4229 | { | |
4230 | _bfd_error_handler | |
4231 | (_("%B: TLS sections are not adjacent:"), abfd); | |
4232 | s = first_tls; | |
4233 | i = 0; | |
4234 | while (i < (unsigned int) tls_count) | |
4235 | { | |
4236 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
4237 | { | |
4238 | _bfd_error_handler (_(" TLS: %A"), s); | |
4239 | i++; | |
4240 | } | |
4241 | else | |
4242 | _bfd_error_handler (_(" non-TLS: %A"), s); | |
4243 | s = s->next; | |
4244 | } | |
4245 | bfd_set_error (bfd_error_bad_value); | |
4246 | goto error_return; | |
4247 | } | |
4248 | m->sections[i] = s; | |
4249 | s = s->next; | |
8ded5a0f | 4250 | } |
252b5132 | 4251 | |
8ded5a0f AM |
4252 | *pm = m; |
4253 | pm = &m->next; | |
4254 | } | |
252b5132 | 4255 | |
8ded5a0f AM |
4256 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
4257 | segment. */ | |
12bd6957 | 4258 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
4259 | if (eh_frame_hdr != NULL |
4260 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 4261 | { |
dc810e39 | 4262 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4263 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4264 | if (m == NULL) |
4265 | goto error_return; | |
4266 | m->next = NULL; | |
8ded5a0f | 4267 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 4268 | m->count = 1; |
8ded5a0f | 4269 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
4270 | |
4271 | *pm = m; | |
4272 | pm = &m->next; | |
4273 | } | |
13ae64f3 | 4274 | |
12bd6957 | 4275 | if (elf_stack_flags (abfd)) |
13ae64f3 | 4276 | { |
8ded5a0f | 4277 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4278 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4279 | if (m == NULL) |
4280 | goto error_return; | |
4281 | m->next = NULL; | |
2b05f1b7 | 4282 | m->p_type = PT_GNU_STACK; |
12bd6957 | 4283 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 4284 | m->p_align = bed->stack_align; |
8ded5a0f | 4285 | m->p_flags_valid = 1; |
04c3a755 NS |
4286 | m->p_align_valid = m->p_align != 0; |
4287 | if (info->stacksize > 0) | |
4288 | { | |
4289 | m->p_size = info->stacksize; | |
4290 | m->p_size_valid = 1; | |
4291 | } | |
252b5132 | 4292 | |
8ded5a0f AM |
4293 | *pm = m; |
4294 | pm = &m->next; | |
4295 | } | |
65765700 | 4296 | |
ceae84aa | 4297 | if (info != NULL && info->relro) |
8ded5a0f | 4298 | { |
f210dcff L |
4299 | for (m = mfirst; m != NULL; m = m->next) |
4300 | { | |
3832a4d8 AM |
4301 | if (m->p_type == PT_LOAD |
4302 | && m->count != 0 | |
4303 | && m->sections[0]->vma >= info->relro_start | |
4304 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 4305 | { |
3832a4d8 AM |
4306 | i = m->count; |
4307 | while (--i != (unsigned) -1) | |
4308 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4309 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4310 | break; | |
4311 | ||
43a8475c | 4312 | if (i != (unsigned) -1) |
f210dcff L |
4313 | break; |
4314 | } | |
be01b344 | 4315 | } |
f210dcff L |
4316 | |
4317 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
4318 | if (m != NULL) | |
4319 | { | |
4320 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4321 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
4322 | if (m == NULL) |
4323 | goto error_return; | |
4324 | m->next = NULL; | |
4325 | m->p_type = PT_GNU_RELRO; | |
4326 | m->p_flags = PF_R; | |
4327 | m->p_flags_valid = 1; | |
4328 | ||
4329 | *pm = m; | |
4330 | pm = &m->next; | |
4331 | } | |
8ded5a0f | 4332 | } |
9ee5e499 | 4333 | |
8ded5a0f | 4334 | free (sections); |
12bd6957 | 4335 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
4336 | } |
4337 | ||
3dea8fca | 4338 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 4339 | return FALSE; |
8c37241b | 4340 | |
12bd6957 | 4341 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 4342 | ++count; |
12bd6957 | 4343 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 4344 | |
b34976b6 | 4345 | return TRUE; |
252b5132 RH |
4346 | |
4347 | error_return: | |
4348 | if (sections != NULL) | |
4349 | free (sections); | |
b34976b6 | 4350 | return FALSE; |
252b5132 RH |
4351 | } |
4352 | ||
4353 | /* Sort sections by address. */ | |
4354 | ||
4355 | static int | |
217aa764 | 4356 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
4357 | { |
4358 | const asection *sec1 = *(const asection **) arg1; | |
4359 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 4360 | bfd_size_type size1, size2; |
252b5132 RH |
4361 | |
4362 | /* Sort by LMA first, since this is the address used to | |
4363 | place the section into a segment. */ | |
4364 | if (sec1->lma < sec2->lma) | |
4365 | return -1; | |
4366 | else if (sec1->lma > sec2->lma) | |
4367 | return 1; | |
4368 | ||
4369 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
4370 | the same, and this will do nothing. */ | |
4371 | if (sec1->vma < sec2->vma) | |
4372 | return -1; | |
4373 | else if (sec1->vma > sec2->vma) | |
4374 | return 1; | |
4375 | ||
4376 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
4377 | ||
07c6e936 | 4378 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
4379 | |
4380 | if (TOEND (sec1)) | |
4381 | { | |
4382 | if (TOEND (sec2)) | |
00a7cdc5 NC |
4383 | { |
4384 | /* If the indicies are the same, do not return 0 | |
4385 | here, but continue to try the next comparison. */ | |
4386 | if (sec1->target_index - sec2->target_index != 0) | |
4387 | return sec1->target_index - sec2->target_index; | |
4388 | } | |
252b5132 RH |
4389 | else |
4390 | return 1; | |
4391 | } | |
00a7cdc5 | 4392 | else if (TOEND (sec2)) |
252b5132 RH |
4393 | return -1; |
4394 | ||
4395 | #undef TOEND | |
4396 | ||
00a7cdc5 NC |
4397 | /* Sort by size, to put zero sized sections |
4398 | before others at the same address. */ | |
252b5132 | 4399 | |
eea6121a AM |
4400 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
4401 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
4402 | |
4403 | if (size1 < size2) | |
252b5132 | 4404 | return -1; |
eecdbe52 | 4405 | if (size1 > size2) |
252b5132 RH |
4406 | return 1; |
4407 | ||
4408 | return sec1->target_index - sec2->target_index; | |
4409 | } | |
4410 | ||
340b6d91 AC |
4411 | /* Ian Lance Taylor writes: |
4412 | ||
4413 | We shouldn't be using % with a negative signed number. That's just | |
4414 | not good. We have to make sure either that the number is not | |
4415 | negative, or that the number has an unsigned type. When the types | |
4416 | are all the same size they wind up as unsigned. When file_ptr is a | |
4417 | larger signed type, the arithmetic winds up as signed long long, | |
4418 | which is wrong. | |
4419 | ||
4420 | What we're trying to say here is something like ``increase OFF by | |
4421 | the least amount that will cause it to be equal to the VMA modulo | |
4422 | the page size.'' */ | |
4423 | /* In other words, something like: | |
4424 | ||
4425 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
4426 | off_offset = off % bed->maxpagesize; | |
4427 | if (vma_offset < off_offset) | |
4428 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
4429 | else | |
4430 | adjustment = vma_offset - off_offset; | |
08a40648 | 4431 | |
340b6d91 AC |
4432 | which can can be collapsed into the expression below. */ |
4433 | ||
4434 | static file_ptr | |
4435 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
4436 | { | |
dc9155b2 NC |
4437 | /* PR binutils/16199: Handle an alignment of zero. */ |
4438 | if (maxpagesize == 0) | |
4439 | maxpagesize = 1; | |
340b6d91 AC |
4440 | return ((vma - off) % maxpagesize); |
4441 | } | |
4442 | ||
6d33f217 L |
4443 | static void |
4444 | print_segment_map (const struct elf_segment_map *m) | |
4445 | { | |
4446 | unsigned int j; | |
4447 | const char *pt = get_segment_type (m->p_type); | |
4448 | char buf[32]; | |
4449 | ||
4450 | if (pt == NULL) | |
4451 | { | |
4452 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
4453 | sprintf (buf, "LOPROC+%7.7x", | |
4454 | (unsigned int) (m->p_type - PT_LOPROC)); | |
4455 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
4456 | sprintf (buf, "LOOS+%7.7x", | |
4457 | (unsigned int) (m->p_type - PT_LOOS)); | |
4458 | else | |
4459 | snprintf (buf, sizeof (buf), "%8.8x", | |
4460 | (unsigned int) m->p_type); | |
4461 | pt = buf; | |
4462 | } | |
4a97a0e5 | 4463 | fflush (stdout); |
6d33f217 L |
4464 | fprintf (stderr, "%s:", pt); |
4465 | for (j = 0; j < m->count; j++) | |
4466 | fprintf (stderr, " %s", m->sections [j]->name); | |
4467 | putc ('\n',stderr); | |
4a97a0e5 | 4468 | fflush (stderr); |
6d33f217 L |
4469 | } |
4470 | ||
32812159 AM |
4471 | static bfd_boolean |
4472 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
4473 | { | |
4474 | void *buf; | |
4475 | bfd_boolean ret; | |
4476 | ||
4477 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
4478 | return FALSE; | |
4479 | buf = bfd_zmalloc (len); | |
4480 | if (buf == NULL) | |
4481 | return FALSE; | |
4482 | ret = bfd_bwrite (buf, len, abfd) == len; | |
4483 | free (buf); | |
4484 | return ret; | |
4485 | } | |
4486 | ||
252b5132 RH |
4487 | /* Assign file positions to the sections based on the mapping from |
4488 | sections to segments. This function also sets up some fields in | |
f3520d2f | 4489 | the file header. */ |
252b5132 | 4490 | |
b34976b6 | 4491 | static bfd_boolean |
f3520d2f AM |
4492 | assign_file_positions_for_load_sections (bfd *abfd, |
4493 | struct bfd_link_info *link_info) | |
252b5132 RH |
4494 | { |
4495 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 4496 | struct elf_segment_map *m; |
252b5132 | 4497 | Elf_Internal_Phdr *phdrs; |
252b5132 | 4498 | Elf_Internal_Phdr *p; |
02bf8d82 | 4499 | file_ptr off; |
3f570048 | 4500 | bfd_size_type maxpagesize; |
f3520d2f | 4501 | unsigned int alloc; |
0920dee7 | 4502 | unsigned int i, j; |
2b0bc088 | 4503 | bfd_vma header_pad = 0; |
252b5132 | 4504 | |
e36284ab | 4505 | if (link_info == NULL |
ceae84aa | 4506 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 4507 | return FALSE; |
252b5132 | 4508 | |
8ded5a0f | 4509 | alloc = 0; |
12bd6957 | 4510 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
4511 | { |
4512 | ++alloc; | |
4513 | if (m->header_size) | |
4514 | header_pad = m->header_size; | |
4515 | } | |
252b5132 | 4516 | |
82f2dbf7 NC |
4517 | if (alloc) |
4518 | { | |
4519 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
4520 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
4521 | } | |
4522 | else | |
4523 | { | |
4524 | /* PR binutils/12467. */ | |
4525 | elf_elfheader (abfd)->e_phoff = 0; | |
4526 | elf_elfheader (abfd)->e_phentsize = 0; | |
4527 | } | |
d324f6d6 | 4528 | |
8ded5a0f | 4529 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 4530 | |
12bd6957 AM |
4531 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
4532 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 4533 | else |
12bd6957 | 4534 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 4535 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
4536 | |
4537 | if (alloc == 0) | |
f3520d2f | 4538 | { |
12bd6957 | 4539 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 4540 | return TRUE; |
f3520d2f | 4541 | } |
252b5132 | 4542 | |
12bd6957 | 4543 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
4544 | see assign_file_positions_except_relocs, so make sure we have |
4545 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
4546 | The variable alloc contains the computed need, while |
4547 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
4548 | layout. |
4549 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
4550 | where the layout is forced to according to a larger size in the | |
4551 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 4552 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 4553 | == 0); |
a50b1753 NC |
4554 | phdrs = (Elf_Internal_Phdr *) |
4555 | bfd_zalloc2 (abfd, | |
12bd6957 | 4556 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
a50b1753 | 4557 | sizeof (Elf_Internal_Phdr)); |
f3520d2f | 4558 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 4559 | if (phdrs == NULL) |
b34976b6 | 4560 | return FALSE; |
252b5132 | 4561 | |
3f570048 AM |
4562 | maxpagesize = 1; |
4563 | if ((abfd->flags & D_PAGED) != 0) | |
4564 | maxpagesize = bed->maxpagesize; | |
4565 | ||
252b5132 RH |
4566 | off = bed->s->sizeof_ehdr; |
4567 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4568 | if (header_pad < (bfd_vma) off) |
4569 | header_pad = 0; | |
4570 | else | |
4571 | header_pad -= off; | |
4572 | off += header_pad; | |
252b5132 | 4573 | |
12bd6957 | 4574 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 4575 | m != NULL; |
0920dee7 | 4576 | m = m->next, p++, j++) |
252b5132 | 4577 | { |
252b5132 | 4578 | asection **secpp; |
bf988460 AM |
4579 | bfd_vma off_adjust; |
4580 | bfd_boolean no_contents; | |
252b5132 RH |
4581 | |
4582 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 4583 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
4584 | not be done to the PT_NOTE section of a corefile, which may |
4585 | contain several pseudo-sections artificially created by bfd. | |
4586 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
4587 | if (m->count > 1 |
4588 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 4589 | && m->p_type == PT_NOTE)) |
252b5132 RH |
4590 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
4591 | elf_sort_sections); | |
4592 | ||
b301b248 AM |
4593 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
4594 | number of sections with contents contributing to both p_filesz | |
4595 | and p_memsz, followed by a number of sections with no contents | |
4596 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 4597 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 4598 | p->p_type = m->p_type; |
28a7f3e7 | 4599 | p->p_flags = m->p_flags; |
252b5132 | 4600 | |
3f570048 AM |
4601 | if (m->count == 0) |
4602 | p->p_vaddr = 0; | |
4603 | else | |
3271a814 | 4604 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
4605 | |
4606 | if (m->p_paddr_valid) | |
4607 | p->p_paddr = m->p_paddr; | |
4608 | else if (m->count == 0) | |
4609 | p->p_paddr = 0; | |
4610 | else | |
08a40648 | 4611 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
4612 | |
4613 | if (p->p_type == PT_LOAD | |
4614 | && (abfd->flags & D_PAGED) != 0) | |
4615 | { | |
4616 | /* p_align in demand paged PT_LOAD segments effectively stores | |
4617 | the maximum page size. When copying an executable with | |
4618 | objcopy, we set m->p_align from the input file. Use this | |
4619 | value for maxpagesize rather than bed->maxpagesize, which | |
4620 | may be different. Note that we use maxpagesize for PT_TLS | |
4621 | segment alignment later in this function, so we are relying | |
4622 | on at least one PT_LOAD segment appearing before a PT_TLS | |
4623 | segment. */ | |
4624 | if (m->p_align_valid) | |
4625 | maxpagesize = m->p_align; | |
4626 | ||
4627 | p->p_align = maxpagesize; | |
4628 | } | |
3271a814 NS |
4629 | else if (m->p_align_valid) |
4630 | p->p_align = m->p_align; | |
e970b90a DJ |
4631 | else if (m->count == 0) |
4632 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
4633 | else |
4634 | p->p_align = 0; | |
4635 | ||
bf988460 AM |
4636 | no_contents = FALSE; |
4637 | off_adjust = 0; | |
252b5132 | 4638 | if (p->p_type == PT_LOAD |
b301b248 | 4639 | && m->count > 0) |
252b5132 | 4640 | { |
b301b248 | 4641 | bfd_size_type align; |
a49e53ed | 4642 | unsigned int align_power = 0; |
b301b248 | 4643 | |
3271a814 NS |
4644 | if (m->p_align_valid) |
4645 | align = p->p_align; | |
4646 | else | |
252b5132 | 4647 | { |
3271a814 NS |
4648 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4649 | { | |
4650 | unsigned int secalign; | |
08a40648 | 4651 | |
3271a814 NS |
4652 | secalign = bfd_get_section_alignment (abfd, *secpp); |
4653 | if (secalign > align_power) | |
4654 | align_power = secalign; | |
4655 | } | |
4656 | align = (bfd_size_type) 1 << align_power; | |
4657 | if (align < maxpagesize) | |
4658 | align = maxpagesize; | |
b301b248 | 4659 | } |
252b5132 | 4660 | |
02bf8d82 AM |
4661 | for (i = 0; i < m->count; i++) |
4662 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
4663 | /* If we aren't making room for this section, then | |
4664 | it must be SHT_NOBITS regardless of what we've | |
4665 | set via struct bfd_elf_special_section. */ | |
4666 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
4667 | ||
bf988460 | 4668 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
4669 | sections. */ |
4670 | no_contents = TRUE; | |
4671 | for (i = 0; i < m->count; i++) | |
4672 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
4673 | { | |
4674 | no_contents = FALSE; | |
4675 | break; | |
4676 | } | |
bf988460 | 4677 | |
85cfcbfb | 4678 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
bf988460 AM |
4679 | off += off_adjust; |
4680 | if (no_contents) | |
4681 | { | |
4682 | /* We shouldn't need to align the segment on disk since | |
4683 | the segment doesn't need file space, but the gABI | |
4684 | arguably requires the alignment and glibc ld.so | |
4685 | checks it. So to comply with the alignment | |
4686 | requirement but not waste file space, we adjust | |
4687 | p_offset for just this segment. (OFF_ADJUST is | |
4688 | subtracted from OFF later.) This may put p_offset | |
4689 | past the end of file, but that shouldn't matter. */ | |
4690 | } | |
4691 | else | |
4692 | off_adjust = 0; | |
252b5132 | 4693 | } |
b1a6d0b1 NC |
4694 | /* Make sure the .dynamic section is the first section in the |
4695 | PT_DYNAMIC segment. */ | |
4696 | else if (p->p_type == PT_DYNAMIC | |
4697 | && m->count > 1 | |
4698 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
4699 | { | |
4700 | _bfd_error_handler | |
b301b248 AM |
4701 | (_("%B: The first section in the PT_DYNAMIC segment is not the .dynamic section"), |
4702 | abfd); | |
b1a6d0b1 NC |
4703 | bfd_set_error (bfd_error_bad_value); |
4704 | return FALSE; | |
4705 | } | |
3f001e84 JK |
4706 | /* Set the note section type to SHT_NOTE. */ |
4707 | else if (p->p_type == PT_NOTE) | |
4708 | for (i = 0; i < m->count; i++) | |
4709 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 4710 | |
252b5132 RH |
4711 | p->p_offset = 0; |
4712 | p->p_filesz = 0; | |
4713 | p->p_memsz = 0; | |
4714 | ||
4715 | if (m->includes_filehdr) | |
4716 | { | |
bf988460 | 4717 | if (!m->p_flags_valid) |
252b5132 | 4718 | p->p_flags |= PF_R; |
252b5132 RH |
4719 | p->p_filesz = bed->s->sizeof_ehdr; |
4720 | p->p_memsz = bed->s->sizeof_ehdr; | |
4721 | if (m->count > 0) | |
4722 | { | |
252b5132 RH |
4723 | if (p->p_vaddr < (bfd_vma) off) |
4724 | { | |
caf47ea6 | 4725 | (*_bfd_error_handler) |
b301b248 AM |
4726 | (_("%B: Not enough room for program headers, try linking with -N"), |
4727 | abfd); | |
252b5132 | 4728 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4729 | return FALSE; |
252b5132 RH |
4730 | } |
4731 | ||
4732 | p->p_vaddr -= off; | |
bf988460 | 4733 | if (!m->p_paddr_valid) |
252b5132 RH |
4734 | p->p_paddr -= off; |
4735 | } | |
252b5132 RH |
4736 | } |
4737 | ||
4738 | if (m->includes_phdrs) | |
4739 | { | |
bf988460 | 4740 | if (!m->p_flags_valid) |
252b5132 RH |
4741 | p->p_flags |= PF_R; |
4742 | ||
f3520d2f | 4743 | if (!m->includes_filehdr) |
252b5132 RH |
4744 | { |
4745 | p->p_offset = bed->s->sizeof_ehdr; | |
4746 | ||
4747 | if (m->count > 0) | |
4748 | { | |
252b5132 | 4749 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 4750 | if (!m->p_paddr_valid) |
252b5132 RH |
4751 | p->p_paddr -= off - p->p_offset; |
4752 | } | |
252b5132 RH |
4753 | } |
4754 | ||
4755 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
4756 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4757 | if (m->count) |
4758 | { | |
4759 | p->p_filesz += header_pad; | |
4760 | p->p_memsz += header_pad; | |
4761 | } | |
252b5132 RH |
4762 | } |
4763 | ||
4764 | if (p->p_type == PT_LOAD | |
4765 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
4766 | { | |
bf988460 | 4767 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 4768 | p->p_offset = off; |
252b5132 RH |
4769 | else |
4770 | { | |
4771 | file_ptr adjust; | |
4772 | ||
4773 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
4774 | if (!no_contents) |
4775 | p->p_filesz += adjust; | |
252b5132 RH |
4776 | p->p_memsz += adjust; |
4777 | } | |
4778 | } | |
4779 | ||
1ea63fd2 AM |
4780 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
4781 | maps. Set filepos for sections in PT_LOAD segments, and in | |
4782 | core files, for sections in PT_NOTE segments. | |
4783 | assign_file_positions_for_non_load_sections will set filepos | |
4784 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
4785 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4786 | { | |
4787 | asection *sec; | |
252b5132 | 4788 | bfd_size_type align; |
627b32bc | 4789 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
4790 | |
4791 | sec = *secpp; | |
02bf8d82 | 4792 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 4793 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 4794 | |
88967714 AM |
4795 | if ((p->p_type == PT_LOAD |
4796 | || p->p_type == PT_TLS) | |
4797 | && (this_hdr->sh_type != SHT_NOBITS | |
4798 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
4799 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
4800 | || p->p_type == PT_TLS)))) | |
252b5132 | 4801 | { |
b5599592 AM |
4802 | bfd_vma p_start = p->p_paddr; |
4803 | bfd_vma p_end = p_start + p->p_memsz; | |
4804 | bfd_vma s_start = sec->lma; | |
4805 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 4806 | |
a2d1e028 L |
4807 | if (adjust != 0 |
4808 | && (s_start < p_end | |
4809 | || p_end < p_start)) | |
252b5132 | 4810 | { |
88967714 | 4811 | (*_bfd_error_handler) |
b5599592 AM |
4812 | (_("%B: section %A lma %#lx adjusted to %#lx"), abfd, sec, |
4813 | (unsigned long) s_start, (unsigned long) p_end); | |
88967714 | 4814 | adjust = 0; |
b5599592 | 4815 | sec->lma = p_end; |
1cfb7d1e | 4816 | } |
3ac9b6c9 | 4817 | p->p_memsz += adjust; |
1cfb7d1e | 4818 | |
88967714 AM |
4819 | if (this_hdr->sh_type != SHT_NOBITS) |
4820 | { | |
32812159 AM |
4821 | if (p->p_filesz + adjust < p->p_memsz) |
4822 | { | |
4823 | /* We have a PROGBITS section following NOBITS ones. | |
4824 | Allocate file space for the NOBITS section(s) and | |
4825 | zero it. */ | |
4826 | adjust = p->p_memsz - p->p_filesz; | |
4827 | if (!write_zeros (abfd, off, adjust)) | |
4828 | return FALSE; | |
4829 | } | |
88967714 AM |
4830 | off += adjust; |
4831 | p->p_filesz += adjust; | |
252b5132 | 4832 | } |
252b5132 RH |
4833 | } |
4834 | ||
4835 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
4836 | { | |
b301b248 AM |
4837 | /* The section at i == 0 is the one that actually contains |
4838 | everything. */ | |
4a938328 MS |
4839 | if (i == 0) |
4840 | { | |
627b32bc | 4841 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
4842 | off += this_hdr->sh_size; |
4843 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
4844 | p->p_memsz = 0; |
4845 | p->p_align = 1; | |
252b5132 | 4846 | } |
4a938328 | 4847 | else |
252b5132 | 4848 | { |
b301b248 | 4849 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 4850 | sec->filepos = 0; |
eea6121a | 4851 | sec->size = 0; |
b301b248 AM |
4852 | sec->flags = 0; |
4853 | continue; | |
252b5132 | 4854 | } |
252b5132 RH |
4855 | } |
4856 | else | |
4857 | { | |
1e951488 | 4858 | if (p->p_type == PT_LOAD) |
b301b248 | 4859 | { |
1e951488 AM |
4860 | this_hdr->sh_offset = sec->filepos = off; |
4861 | if (this_hdr->sh_type != SHT_NOBITS) | |
4862 | off += this_hdr->sh_size; | |
4863 | } | |
4864 | else if (this_hdr->sh_type == SHT_NOBITS | |
4865 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
4866 | && this_hdr->sh_offset == 0) | |
4867 | { | |
4868 | /* This is a .tbss section that didn't get a PT_LOAD. | |
4869 | (See _bfd_elf_map_sections_to_segments "Create a | |
4870 | final PT_LOAD".) Set sh_offset to the value it | |
4871 | would have if we had created a zero p_filesz and | |
4872 | p_memsz PT_LOAD header for the section. This | |
4873 | also makes the PT_TLS header have the same | |
4874 | p_offset value. */ | |
4875 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
4876 | off, align); | |
4877 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 4878 | } |
252b5132 | 4879 | |
02bf8d82 | 4880 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 4881 | { |
6a3cd2b4 | 4882 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
4883 | /* A load section without SHF_ALLOC is something like |
4884 | a note section in a PT_NOTE segment. These take | |
4885 | file space but are not loaded into memory. */ | |
4886 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 4887 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 4888 | } |
6a3cd2b4 | 4889 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 4890 | { |
6a3cd2b4 AM |
4891 | if (p->p_type == PT_TLS) |
4892 | p->p_memsz += this_hdr->sh_size; | |
4893 | ||
4894 | /* .tbss is special. It doesn't contribute to p_memsz of | |
4895 | normal segments. */ | |
4896 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
4897 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
4898 | } |
4899 | ||
b10a8ae0 L |
4900 | if (align > p->p_align |
4901 | && !m->p_align_valid | |
4902 | && (p->p_type != PT_LOAD | |
4903 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
4904 | p->p_align = align; |
4905 | } | |
4906 | ||
bf988460 | 4907 | if (!m->p_flags_valid) |
252b5132 RH |
4908 | { |
4909 | p->p_flags |= PF_R; | |
02bf8d82 | 4910 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 4911 | p->p_flags |= PF_X; |
02bf8d82 | 4912 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
4913 | p->p_flags |= PF_W; |
4914 | } | |
4915 | } | |
43a8475c | 4916 | |
bf988460 | 4917 | off -= off_adjust; |
0920dee7 | 4918 | |
7c928300 AM |
4919 | /* Check that all sections are in a PT_LOAD segment. |
4920 | Don't check funky gdb generated core files. */ | |
4921 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
4922 | { |
4923 | bfd_boolean check_vma = TRUE; | |
4924 | ||
4925 | for (i = 1; i < m->count; i++) | |
4926 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
4927 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
4928 | ->this_hdr), p) != 0 | |
4929 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
4930 | ->this_hdr), p) != 0) | |
0920dee7 | 4931 | { |
9a83a553 AM |
4932 | /* Looks like we have overlays packed into the segment. */ |
4933 | check_vma = FALSE; | |
4934 | break; | |
0920dee7 | 4935 | } |
9a83a553 AM |
4936 | |
4937 | for (i = 0; i < m->count; i++) | |
4938 | { | |
4939 | Elf_Internal_Shdr *this_hdr; | |
4940 | asection *sec; | |
4941 | ||
4942 | sec = m->sections[i]; | |
4943 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
4944 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
4945 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 AM |
4946 | { |
4947 | (*_bfd_error_handler) | |
4948 | (_("%B: section `%A' can't be allocated in segment %d"), | |
4949 | abfd, sec, j); | |
4950 | print_segment_map (m); | |
4951 | } | |
4952 | } | |
4953 | } | |
252b5132 RH |
4954 | } |
4955 | ||
12bd6957 | 4956 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
4957 | return TRUE; |
4958 | } | |
4959 | ||
4960 | /* Assign file positions for the other sections. */ | |
4961 | ||
4962 | static bfd_boolean | |
4963 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
4964 | struct bfd_link_info *link_info) | |
4965 | { | |
4966 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
4967 | Elf_Internal_Shdr **i_shdrpp; | |
4968 | Elf_Internal_Shdr **hdrpp; | |
4969 | Elf_Internal_Phdr *phdrs; | |
4970 | Elf_Internal_Phdr *p; | |
4971 | struct elf_segment_map *m; | |
62655c7b | 4972 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
4973 | bfd_vma filehdr_vaddr, filehdr_paddr; |
4974 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
4975 | file_ptr off; | |
4976 | unsigned int num_sec; | |
4977 | unsigned int i; | |
4978 | unsigned int count; | |
4979 | ||
5c182d5f AM |
4980 | i_shdrpp = elf_elfsections (abfd); |
4981 | num_sec = elf_numsections (abfd); | |
12bd6957 | 4982 | off = elf_next_file_pos (abfd); |
5c182d5f AM |
4983 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
4984 | { | |
5c182d5f AM |
4985 | Elf_Internal_Shdr *hdr; |
4986 | ||
4987 | hdr = *hdrpp; | |
4988 | if (hdr->bfd_section != NULL | |
252e386e AM |
4989 | && (hdr->bfd_section->filepos != 0 |
4990 | || (hdr->sh_type == SHT_NOBITS | |
4991 | && hdr->contents == NULL))) | |
627b32bc | 4992 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
4993 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
4994 | { | |
e8d2ba53 AM |
4995 | if (hdr->sh_size != 0) |
4996 | (*_bfd_error_handler) | |
4997 | (_("%B: warning: allocated section `%s' not in segment"), | |
4998 | abfd, | |
4999 | (hdr->bfd_section == NULL | |
5000 | ? "*unknown*" | |
5001 | : hdr->bfd_section->name)); | |
3ba71138 L |
5002 | /* We don't need to page align empty sections. */ |
5003 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5004 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5005 | bed->maxpagesize); | |
5006 | else | |
5007 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5008 | hdr->sh_addralign); | |
5009 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5010 | FALSE); | |
5011 | } | |
5012 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5013 | && hdr->bfd_section == NULL) | |
12bd6957 AM |
5014 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
5015 | || hdr == i_shdrpp[elf_symtab_shndx (abfd)] | |
5016 | || hdr == i_shdrpp[elf_strtab_sec (abfd)]) | |
5c182d5f AM |
5017 | hdr->sh_offset = -1; |
5018 | else | |
5019 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5020 | } |
5021 | ||
252b5132 RH |
5022 | /* Now that we have set the section file positions, we can set up |
5023 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5024 | count = 0; |
5025 | filehdr_vaddr = 0; | |
5026 | filehdr_paddr = 0; | |
5027 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5028 | phdrs_paddr = 0; | |
62655c7b | 5029 | hdrs_segment = NULL; |
f3520d2f | 5030 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5031 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5032 | { |
5033 | ++count; | |
5034 | if (p->p_type != PT_LOAD) | |
5035 | continue; | |
5036 | ||
5037 | if (m->includes_filehdr) | |
5038 | { | |
5039 | filehdr_vaddr = p->p_vaddr; | |
5040 | filehdr_paddr = p->p_paddr; | |
5041 | } | |
5042 | if (m->includes_phdrs) | |
5043 | { | |
5044 | phdrs_vaddr = p->p_vaddr; | |
5045 | phdrs_paddr = p->p_paddr; | |
5046 | if (m->includes_filehdr) | |
5047 | { | |
62655c7b | 5048 | hdrs_segment = m; |
f3520d2f AM |
5049 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5050 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5051 | } | |
5052 | } | |
5053 | } | |
5054 | ||
62655c7b RM |
5055 | if (hdrs_segment != NULL && link_info != NULL) |
5056 | { | |
5057 | /* There is a segment that contains both the file headers and the | |
5058 | program headers, so provide a symbol __ehdr_start pointing there. | |
5059 | A program can use this to examine itself robustly. */ | |
5060 | ||
5061 | struct elf_link_hash_entry *hash | |
5062 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5063 | FALSE, FALSE, TRUE); | |
5064 | /* If the symbol was referenced and not defined, define it. */ | |
5065 | if (hash != NULL | |
5066 | && (hash->root.type == bfd_link_hash_new | |
5067 | || hash->root.type == bfd_link_hash_undefined | |
5068 | || hash->root.type == bfd_link_hash_undefweak | |
5069 | || hash->root.type == bfd_link_hash_common)) | |
5070 | { | |
5071 | asection *s = NULL; | |
5072 | if (hdrs_segment->count != 0) | |
5073 | /* The segment contains sections, so use the first one. */ | |
5074 | s = hdrs_segment->sections[0]; | |
5075 | else | |
5076 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 5077 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
5078 | if (m->count != 0) |
5079 | { | |
5080 | s = m->sections[0]; | |
5081 | break; | |
5082 | } | |
5083 | ||
5084 | if (s != NULL) | |
5085 | { | |
5086 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5087 | hash->root.u.def.section = s; | |
5088 | } | |
5089 | else | |
5090 | { | |
5091 | hash->root.u.def.value = filehdr_vaddr; | |
5092 | hash->root.u.def.section = bfd_abs_section_ptr; | |
5093 | } | |
5094 | ||
5095 | hash->root.type = bfd_link_hash_defined; | |
5096 | hash->def_regular = 1; | |
5097 | hash->non_elf = 0; | |
5098 | } | |
5099 | } | |
5100 | ||
12bd6957 | 5101 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 5102 | { |
129af99f | 5103 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 5104 | { |
b84a33b5 | 5105 | const Elf_Internal_Phdr *lp; |
3146fac4 | 5106 | struct elf_segment_map *lm; |
1ea63fd2 | 5107 | |
129af99f | 5108 | if (link_info != NULL) |
8c37241b | 5109 | { |
129af99f AS |
5110 | /* During linking the range of the RELRO segment is passed |
5111 | in link_info. */ | |
12bd6957 | 5112 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
5113 | lm != NULL; |
5114 | lm = lm->next, lp++) | |
8c37241b JJ |
5115 | { |
5116 | if (lp->p_type == PT_LOAD | |
b84a33b5 | 5117 | && lp->p_vaddr < link_info->relro_end |
3146fac4 AM |
5118 | && lm->count != 0 |
5119 | && lm->sections[0]->vma >= link_info->relro_start) | |
8c37241b JJ |
5120 | break; |
5121 | } | |
8981c88a | 5122 | |
3146fac4 | 5123 | BFD_ASSERT (lm != NULL); |
8c37241b | 5124 | } |
129af99f AS |
5125 | else |
5126 | { | |
5127 | /* Otherwise we are copying an executable or shared | |
b84a33b5 | 5128 | library, but we need to use the same linker logic. */ |
129af99f AS |
5129 | for (lp = phdrs; lp < phdrs + count; ++lp) |
5130 | { | |
5131 | if (lp->p_type == PT_LOAD | |
5132 | && lp->p_paddr == p->p_paddr) | |
5133 | break; | |
5134 | } | |
b84a33b5 AM |
5135 | } |
5136 | ||
5137 | if (lp < phdrs + count) | |
5138 | { | |
5139 | p->p_vaddr = lp->p_vaddr; | |
5140 | p->p_paddr = lp->p_paddr; | |
5141 | p->p_offset = lp->p_offset; | |
5142 | if (link_info != NULL) | |
5143 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
5144 | else if (m->p_size_valid) | |
5145 | p->p_filesz = m->p_size; | |
129af99f AS |
5146 | else |
5147 | abort (); | |
b84a33b5 | 5148 | p->p_memsz = p->p_filesz; |
f3944f72 L |
5149 | /* Preserve the alignment and flags if they are valid. The |
5150 | gold linker generates RW/4 for the PT_GNU_RELRO section. | |
5151 | It is better for objcopy/strip to honor these attributes | |
5152 | otherwise gdb will choke when using separate debug files. | |
5153 | */ | |
5154 | if (!m->p_align_valid) | |
5155 | p->p_align = 1; | |
5156 | if (!m->p_flags_valid) | |
5157 | p->p_flags = (lp->p_flags & ~PF_W); | |
129af99f | 5158 | } |
9433b9b1 | 5159 | else |
b84a33b5 AM |
5160 | { |
5161 | memset (p, 0, sizeof *p); | |
5162 | p->p_type = PT_NULL; | |
5163 | } | |
129af99f | 5164 | } |
04c3a755 NS |
5165 | else if (p->p_type == PT_GNU_STACK) |
5166 | { | |
5167 | if (m->p_size_valid) | |
5168 | p->p_memsz = m->p_size; | |
5169 | } | |
129af99f AS |
5170 | else if (m->count != 0) |
5171 | { | |
5172 | if (p->p_type != PT_LOAD | |
5173 | && (p->p_type != PT_NOTE | |
5174 | || bfd_get_format (abfd) != bfd_core)) | |
5175 | { | |
129af99f AS |
5176 | BFD_ASSERT (!m->includes_filehdr && !m->includes_phdrs); |
5177 | ||
86b2281f | 5178 | p->p_filesz = 0; |
129af99f | 5179 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
5180 | for (i = m->count; i-- != 0;) |
5181 | { | |
5182 | asection *sect = m->sections[i]; | |
5183 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
5184 | if (hdr->sh_type != SHT_NOBITS) | |
5185 | { | |
5186 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
5187 | + hdr->sh_size); | |
5188 | break; | |
5189 | } | |
5190 | } | |
129af99f AS |
5191 | } |
5192 | } | |
5193 | else if (m->includes_filehdr) | |
5194 | { | |
5195 | p->p_vaddr = filehdr_vaddr; | |
5196 | if (! m->p_paddr_valid) | |
5197 | p->p_paddr = filehdr_paddr; | |
5198 | } | |
5199 | else if (m->includes_phdrs) | |
5200 | { | |
5201 | p->p_vaddr = phdrs_vaddr; | |
5202 | if (! m->p_paddr_valid) | |
5203 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
5204 | } |
5205 | } | |
5206 | ||
12bd6957 | 5207 | elf_next_file_pos (abfd) = off; |
252b5132 | 5208 | |
b34976b6 | 5209 | return TRUE; |
252b5132 RH |
5210 | } |
5211 | ||
252b5132 RH |
5212 | /* Work out the file positions of all the sections. This is called by |
5213 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
5214 | VMAs must be known before this is called. | |
5215 | ||
e0638f70 AM |
5216 | Reloc sections come in two flavours: Those processed specially as |
5217 | "side-channel" data attached to a section to which they apply, and | |
5218 | those that bfd doesn't process as relocations. The latter sort are | |
5219 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
5220 | consider the former sort here, unless they form part of the loadable | |
5221 | image. Reloc sections not assigned here will be handled later by | |
5222 | assign_file_positions_for_relocs. | |
252b5132 RH |
5223 | |
5224 | We also don't set the positions of the .symtab and .strtab here. */ | |
5225 | ||
b34976b6 | 5226 | static bfd_boolean |
c84fca4d AO |
5227 | assign_file_positions_except_relocs (bfd *abfd, |
5228 | struct bfd_link_info *link_info) | |
252b5132 | 5229 | { |
5c182d5f AM |
5230 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
5231 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 5232 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5233 | |
5234 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
5235 | && bfd_get_format (abfd) != bfd_core) | |
5236 | { | |
5c182d5f AM |
5237 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
5238 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
5239 | Elf_Internal_Shdr **hdrpp; |
5240 | unsigned int i; | |
a485e98e | 5241 | file_ptr off; |
252b5132 RH |
5242 | |
5243 | /* Start after the ELF header. */ | |
5244 | off = i_ehdrp->e_ehsize; | |
5245 | ||
5246 | /* We are not creating an executable, which means that we are | |
5247 | not creating a program header, and that the actual order of | |
5248 | the sections in the file is unimportant. */ | |
9ad5cbcf | 5249 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
5250 | { |
5251 | Elf_Internal_Shdr *hdr; | |
5252 | ||
5253 | hdr = *hdrpp; | |
e0638f70 AM |
5254 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
5255 | && hdr->bfd_section == NULL) | |
12bd6957 AM |
5256 | || i == elf_onesymtab (abfd) |
5257 | || i == elf_symtab_shndx (abfd) | |
5258 | || i == elf_strtab_sec (abfd)) | |
252b5132 RH |
5259 | { |
5260 | hdr->sh_offset = -1; | |
252b5132 | 5261 | } |
9ad5cbcf | 5262 | else |
b34976b6 | 5263 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 5264 | } |
a485e98e AM |
5265 | |
5266 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
5267 | } |
5268 | else | |
5269 | { | |
f3520d2f AM |
5270 | unsigned int alloc; |
5271 | ||
252b5132 | 5272 | /* Assign file positions for the loaded sections based on the |
08a40648 | 5273 | assignment of sections to segments. */ |
f3520d2f AM |
5274 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
5275 | return FALSE; | |
5276 | ||
5277 | /* And for non-load sections. */ | |
5278 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
5279 | return FALSE; | |
5280 | ||
e36284ab AM |
5281 | if (bed->elf_backend_modify_program_headers != NULL) |
5282 | { | |
5283 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
5284 | return FALSE; | |
5285 | } | |
5286 | ||
58e7ebac L |
5287 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
5288 | if (link_info != NULL | |
5289 | && link_info->executable | |
5290 | && link_info->shared) | |
5291 | { | |
5292 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
5293 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
5294 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
5295 | ||
5296 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
5297 | bfd_vma p_vaddr = (bfd_vma) -1; | |
5298 | for (; segment < end_segment; segment++) | |
5299 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
5300 | p_vaddr = segment->p_vaddr; | |
5301 | ||
5302 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
5303 | segments is non-zero. */ | |
5304 | if (p_vaddr) | |
5305 | i_ehdrp->e_type = ET_EXEC; | |
5306 | } | |
5307 | ||
f3520d2f | 5308 | /* Write out the program headers. */ |
12bd6957 | 5309 | alloc = elf_program_header_size (abfd) / bed->s->sizeof_phdr; |
f3520d2f AM |
5310 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
5311 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) | |
b34976b6 | 5312 | return FALSE; |
252b5132 RH |
5313 | } |
5314 | ||
b34976b6 | 5315 | return TRUE; |
252b5132 RH |
5316 | } |
5317 | ||
b34976b6 | 5318 | static bfd_boolean |
217aa764 | 5319 | prep_headers (bfd *abfd) |
252b5132 | 5320 | { |
3d540e93 | 5321 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 5322 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 5323 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5324 | |
5325 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5326 | |
2b0f7ef9 | 5327 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 5328 | if (shstrtab == NULL) |
b34976b6 | 5329 | return FALSE; |
252b5132 RH |
5330 | |
5331 | elf_shstrtab (abfd) = shstrtab; | |
5332 | ||
5333 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
5334 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
5335 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
5336 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
5337 | ||
5338 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
5339 | i_ehdrp->e_ident[EI_DATA] = | |
5340 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
5341 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
5342 | ||
252b5132 RH |
5343 | if ((abfd->flags & DYNAMIC) != 0) |
5344 | i_ehdrp->e_type = ET_DYN; | |
5345 | else if ((abfd->flags & EXEC_P) != 0) | |
5346 | i_ehdrp->e_type = ET_EXEC; | |
5347 | else if (bfd_get_format (abfd) == bfd_core) | |
5348 | i_ehdrp->e_type = ET_CORE; | |
5349 | else | |
5350 | i_ehdrp->e_type = ET_REL; | |
5351 | ||
5352 | switch (bfd_get_arch (abfd)) | |
5353 | { | |
5354 | case bfd_arch_unknown: | |
5355 | i_ehdrp->e_machine = EM_NONE; | |
5356 | break; | |
aa4f99bb AO |
5357 | |
5358 | /* There used to be a long list of cases here, each one setting | |
5359 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
5360 | in the corresponding bfd definition. To avoid duplication, | |
5361 | the switch was removed. Machines that need special handling | |
5362 | can generally do it in elf_backend_final_write_processing(), | |
5363 | unless they need the information earlier than the final write. | |
5364 | Such need can generally be supplied by replacing the tests for | |
5365 | e_machine with the conditions used to determine it. */ | |
252b5132 | 5366 | default: |
9c5bfbb7 AM |
5367 | i_ehdrp->e_machine = bed->elf_machine_code; |
5368 | } | |
aa4f99bb | 5369 | |
252b5132 RH |
5370 | i_ehdrp->e_version = bed->s->ev_current; |
5371 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
5372 | ||
c044fabd | 5373 | /* No program header, for now. */ |
252b5132 RH |
5374 | i_ehdrp->e_phoff = 0; |
5375 | i_ehdrp->e_phentsize = 0; | |
5376 | i_ehdrp->e_phnum = 0; | |
5377 | ||
c044fabd | 5378 | /* Each bfd section is section header entry. */ |
252b5132 RH |
5379 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
5380 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
5381 | ||
c044fabd | 5382 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 5383 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
5384 | /* It all happens later. */ |
5385 | ; | |
252b5132 RH |
5386 | else |
5387 | { | |
5388 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
5389 | i_ehdrp->e_phoff = 0; |
5390 | } | |
5391 | ||
5392 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 5393 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 5394 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 5395 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 5396 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 5397 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 5398 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 5399 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 5400 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 5401 | return FALSE; |
252b5132 | 5402 | |
b34976b6 | 5403 | return TRUE; |
252b5132 RH |
5404 | } |
5405 | ||
5406 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 5407 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 5408 | |
a485e98e | 5409 | static void |
217aa764 | 5410 | _bfd_elf_assign_file_positions_for_relocs (bfd *abfd) |
252b5132 RH |
5411 | { |
5412 | file_ptr off; | |
9ad5cbcf | 5413 | unsigned int i, num_sec; |
252b5132 | 5414 | Elf_Internal_Shdr **shdrpp; |
a485e98e AM |
5415 | Elf_Internal_Ehdr *i_ehdrp; |
5416 | const struct elf_backend_data *bed; | |
252b5132 | 5417 | |
12bd6957 | 5418 | off = elf_next_file_pos (abfd); |
252b5132 | 5419 | |
9ad5cbcf AM |
5420 | num_sec = elf_numsections (abfd); |
5421 | for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++) | |
252b5132 RH |
5422 | { |
5423 | Elf_Internal_Shdr *shdrp; | |
5424 | ||
5425 | shdrp = *shdrpp; | |
5426 | if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA) | |
5427 | && shdrp->sh_offset == -1) | |
b34976b6 | 5428 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); |
252b5132 RH |
5429 | } |
5430 | ||
a485e98e AM |
5431 | /* Place the section headers. */ |
5432 | i_ehdrp = elf_elfheader (abfd); | |
5433 | bed = get_elf_backend_data (abfd); | |
5434 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
5435 | i_ehdrp->e_shoff = off; | |
5436 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 5437 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
5438 | } |
5439 | ||
b34976b6 | 5440 | bfd_boolean |
217aa764 | 5441 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 5442 | { |
9c5bfbb7 | 5443 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5444 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 5445 | bfd_boolean failed; |
9ad5cbcf | 5446 | unsigned int count, num_sec; |
30e8ee25 | 5447 | struct elf_obj_tdata *t; |
252b5132 RH |
5448 | |
5449 | if (! abfd->output_has_begun | |
217aa764 | 5450 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 5451 | return FALSE; |
252b5132 RH |
5452 | |
5453 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 5454 | |
b34976b6 | 5455 | failed = FALSE; |
252b5132 RH |
5456 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
5457 | if (failed) | |
b34976b6 | 5458 | return FALSE; |
252b5132 RH |
5459 | |
5460 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |
5461 | ||
c044fabd | 5462 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
5463 | num_sec = elf_numsections (abfd); |
5464 | for (count = 1; count < num_sec; count++) | |
252b5132 RH |
5465 | { |
5466 | if (bed->elf_backend_section_processing) | |
5467 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
5468 | if (i_shdrp[count]->contents) | |
5469 | { | |
dc810e39 AM |
5470 | bfd_size_type amt = i_shdrp[count]->sh_size; |
5471 | ||
252b5132 | 5472 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 5473 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 5474 | return FALSE; |
252b5132 RH |
5475 | } |
5476 | } | |
5477 | ||
5478 | /* Write out the section header names. */ | |
30e8ee25 | 5479 | t = elf_tdata (abfd); |
26ae6d5e | 5480 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 5481 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 5482 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 5483 | return FALSE; |
252b5132 RH |
5484 | |
5485 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 5486 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 5487 | |
ff59fc36 RM |
5488 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
5489 | return FALSE; | |
5490 | ||
5491 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
5492 | if (t->o->build_id.after_write_object_contents != NULL) |
5493 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
5494 | |
5495 | return TRUE; | |
252b5132 RH |
5496 | } |
5497 | ||
b34976b6 | 5498 | bfd_boolean |
217aa764 | 5499 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 5500 | { |
c044fabd | 5501 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
5502 | return _bfd_elf_write_object_contents (abfd); |
5503 | } | |
c044fabd KH |
5504 | |
5505 | /* Given a section, search the header to find them. */ | |
5506 | ||
cb33740c | 5507 | unsigned int |
198beae2 | 5508 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 5509 | { |
9c5bfbb7 | 5510 | const struct elf_backend_data *bed; |
91d6fa6a | 5511 | unsigned int sec_index; |
252b5132 | 5512 | |
9ad5cbcf AM |
5513 | if (elf_section_data (asect) != NULL |
5514 | && elf_section_data (asect)->this_idx != 0) | |
5515 | return elf_section_data (asect)->this_idx; | |
5516 | ||
5517 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 5518 | sec_index = SHN_ABS; |
af746e92 | 5519 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 5520 | sec_index = SHN_COMMON; |
af746e92 | 5521 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 5522 | sec_index = SHN_UNDEF; |
af746e92 | 5523 | else |
91d6fa6a | 5524 | sec_index = SHN_BAD; |
252b5132 | 5525 | |
af746e92 | 5526 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
5527 | if (bed->elf_backend_section_from_bfd_section) |
5528 | { | |
91d6fa6a | 5529 | int retval = sec_index; |
9ad5cbcf | 5530 | |
af746e92 AM |
5531 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
5532 | return retval; | |
252b5132 RH |
5533 | } |
5534 | ||
91d6fa6a | 5535 | if (sec_index == SHN_BAD) |
af746e92 | 5536 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 5537 | |
91d6fa6a | 5538 | return sec_index; |
252b5132 RH |
5539 | } |
5540 | ||
5541 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
5542 | on error. */ | |
5543 | ||
5544 | int | |
217aa764 | 5545 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
5546 | { |
5547 | asymbol *asym_ptr = *asym_ptr_ptr; | |
5548 | int idx; | |
5549 | flagword flags = asym_ptr->flags; | |
5550 | ||
5551 | /* When gas creates relocations against local labels, it creates its | |
5552 | own symbol for the section, but does put the symbol into the | |
5553 | symbol chain, so udata is 0. When the linker is generating | |
5554 | relocatable output, this section symbol may be for one of the | |
5555 | input sections rather than the output section. */ | |
5556 | if (asym_ptr->udata.i == 0 | |
5557 | && (flags & BSF_SECTION_SYM) | |
5558 | && asym_ptr->section) | |
5559 | { | |
5372391b | 5560 | asection *sec; |
252b5132 RH |
5561 | int indx; |
5562 | ||
5372391b AM |
5563 | sec = asym_ptr->section; |
5564 | if (sec->owner != abfd && sec->output_section != NULL) | |
5565 | sec = sec->output_section; | |
5566 | if (sec->owner == abfd | |
5567 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 5568 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
5569 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
5570 | } | |
5571 | ||
5572 | idx = asym_ptr->udata.i; | |
5573 | ||
5574 | if (idx == 0) | |
5575 | { | |
5576 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 5577 | which is used in a relocation entry. */ |
252b5132 | 5578 | (*_bfd_error_handler) |
d003868e AM |
5579 | (_("%B: symbol `%s' required but not present"), |
5580 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
5581 | bfd_set_error (bfd_error_no_symbols); |
5582 | return -1; | |
5583 | } | |
5584 | ||
5585 | #if DEBUG & 4 | |
5586 | { | |
5587 | fprintf (stderr, | |
9ccb8af9 AM |
5588 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx\n", |
5589 | (long) asym_ptr, asym_ptr->name, idx, (long) flags); | |
252b5132 RH |
5590 | fflush (stderr); |
5591 | } | |
5592 | #endif | |
5593 | ||
5594 | return idx; | |
5595 | } | |
5596 | ||
84d1d650 | 5597 | /* Rewrite program header information. */ |
252b5132 | 5598 | |
b34976b6 | 5599 | static bfd_boolean |
84d1d650 | 5600 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 5601 | { |
b34976b6 AM |
5602 | Elf_Internal_Ehdr *iehdr; |
5603 | struct elf_segment_map *map; | |
5604 | struct elf_segment_map *map_first; | |
5605 | struct elf_segment_map **pointer_to_map; | |
5606 | Elf_Internal_Phdr *segment; | |
5607 | asection *section; | |
5608 | unsigned int i; | |
5609 | unsigned int num_segments; | |
5610 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 5611 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
5612 | bfd_vma maxpagesize; |
5613 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
5614 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 5615 | const struct elf_backend_data *bed; |
bc67d8a6 | 5616 | |
caf47ea6 | 5617 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
5618 | iehdr = elf_elfheader (ibfd); |
5619 | ||
bc67d8a6 | 5620 | map_first = NULL; |
c044fabd | 5621 | pointer_to_map = &map_first; |
252b5132 RH |
5622 | |
5623 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
5624 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
5625 | ||
5626 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
5627 | #define SEGMENT_END(segment, start) \ |
5628 | (start + (segment->p_memsz > segment->p_filesz \ | |
5629 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 5630 | |
eecdbe52 JJ |
5631 | #define SECTION_SIZE(section, segment) \ |
5632 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
5633 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 5634 | ? section->size : 0) |
eecdbe52 | 5635 | |
b34976b6 | 5636 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5637 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
5638 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
5639 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 5640 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5641 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 5642 | |
b34976b6 | 5643 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5644 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
5645 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
5646 | (section->lma >= base \ | |
eecdbe52 | 5647 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5648 | <= SEGMENT_END (segment, base))) |
252b5132 | 5649 | |
0efc80c8 L |
5650 | /* Handle PT_NOTE segment. */ |
5651 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 5652 | (p->p_type == PT_NOTE \ |
0efc80c8 | 5653 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 5654 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5655 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5656 | <= p->p_offset + p->p_filesz)) |
252b5132 | 5657 | |
0efc80c8 L |
5658 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
5659 | etc. */ | |
5660 | #define IS_COREFILE_NOTE(p, s) \ | |
5661 | (IS_NOTE (p, s) \ | |
5662 | && bfd_get_format (ibfd) == bfd_core \ | |
5663 | && s->vma == 0 \ | |
5664 | && s->lma == 0) | |
5665 | ||
252b5132 RH |
5666 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
5667 | linker, which generates a PT_INTERP section with p_vaddr and | |
5668 | p_memsz set to 0. */ | |
aecc8f8a AM |
5669 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
5670 | (p->p_vaddr == 0 \ | |
5671 | && p->p_paddr == 0 \ | |
5672 | && p->p_memsz == 0 \ | |
5673 | && p->p_filesz > 0 \ | |
5674 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 5675 | && s->size > 0 \ |
aecc8f8a | 5676 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5677 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5678 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 5679 | |
bc67d8a6 NC |
5680 | /* Decide if the given section should be included in the given segment. |
5681 | A section will be included if: | |
f5ffc919 | 5682 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 5683 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 5684 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 5685 | segment. |
bc67d8a6 | 5686 | 3. There is an output section associated with it, |
eecdbe52 | 5687 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 5688 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 5689 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
5690 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
5691 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 5692 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 5693 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
5694 | ((((segment->p_paddr \ |
5695 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
5696 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
5697 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 5698 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
5699 | && segment->p_type != PT_GNU_STACK \ |
5700 | && (segment->p_type != PT_TLS \ | |
5701 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
5702 | && (segment->p_type == PT_LOAD \ | |
5703 | || segment->p_type == PT_TLS \ | |
5704 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
5705 | && (segment->p_type != PT_DYNAMIC \ | |
5706 | || SECTION_SIZE (section, segment) > 0 \ | |
5707 | || (segment->p_paddr \ | |
5708 | ? segment->p_paddr != section->lma \ | |
5709 | : segment->p_vaddr != section->vma) \ | |
5710 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
5711 | == 0)) \ | |
0067a569 | 5712 | && !section->segment_mark) |
bc67d8a6 | 5713 | |
9f17e2a6 L |
5714 | /* If the output section of a section in the input segment is NULL, |
5715 | it is removed from the corresponding output segment. */ | |
5716 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
5717 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
5718 | && section->output_section != NULL) | |
5719 | ||
b34976b6 | 5720 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
5721 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
5722 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
5723 | ||
5724 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
5725 | their VMA address ranges and their LMA address ranges overlap. | |
5726 | It is possible to have overlapping VMA ranges without overlapping LMA | |
5727 | ranges. RedBoot images for example can have both .data and .bss mapped | |
5728 | to the same VMA range, but with the .data section mapped to a different | |
5729 | LMA. */ | |
aecc8f8a | 5730 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 5731 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 5732 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 5733 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 5734 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
5735 | |
5736 | /* Initialise the segment mark field. */ | |
5737 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 5738 | section->segment_mark = FALSE; |
bc67d8a6 | 5739 | |
5c44b38e AM |
5740 | /* The Solaris linker creates program headers in which all the |
5741 | p_paddr fields are zero. When we try to objcopy or strip such a | |
5742 | file, we get confused. Check for this case, and if we find it | |
5743 | don't set the p_paddr_valid fields. */ | |
5744 | p_paddr_valid = FALSE; | |
5745 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5746 | i < num_segments; | |
5747 | i++, segment++) | |
5748 | if (segment->p_paddr != 0) | |
5749 | { | |
5750 | p_paddr_valid = TRUE; | |
5751 | break; | |
5752 | } | |
5753 | ||
252b5132 | 5754 | /* Scan through the segments specified in the program header |
bc67d8a6 | 5755 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 5756 | in the loadable segments. These can be created by weird |
aecc8f8a | 5757 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
5758 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
5759 | i < num_segments; | |
c044fabd | 5760 | i++, segment++) |
252b5132 | 5761 | { |
252b5132 | 5762 | unsigned int j; |
c044fabd | 5763 | Elf_Internal_Phdr *segment2; |
252b5132 | 5764 | |
aecc8f8a AM |
5765 | if (segment->p_type == PT_INTERP) |
5766 | for (section = ibfd->sections; section; section = section->next) | |
5767 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
5768 | { | |
5769 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 5770 | assignment code will work. */ |
aecc8f8a AM |
5771 | segment->p_vaddr = section->vma; |
5772 | break; | |
5773 | } | |
5774 | ||
bc67d8a6 | 5775 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
5776 | { |
5777 | /* Remove PT_GNU_RELRO segment. */ | |
5778 | if (segment->p_type == PT_GNU_RELRO) | |
5779 | segment->p_type = PT_NULL; | |
5780 | continue; | |
5781 | } | |
c044fabd | 5782 | |
bc67d8a6 | 5783 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 5784 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
5785 | { |
5786 | bfd_signed_vma extra_length; | |
c044fabd | 5787 | |
bc67d8a6 | 5788 | if (segment2->p_type != PT_LOAD |
0067a569 | 5789 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 5790 | continue; |
c044fabd | 5791 | |
bc67d8a6 NC |
5792 | /* Merge the two segments together. */ |
5793 | if (segment2->p_vaddr < segment->p_vaddr) | |
5794 | { | |
c044fabd | 5795 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 5796 | SEGMENT. */ |
0067a569 AM |
5797 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
5798 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 5799 | |
bc67d8a6 NC |
5800 | if (extra_length > 0) |
5801 | { | |
0067a569 | 5802 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
5803 | segment2->p_filesz += extra_length; |
5804 | } | |
c044fabd | 5805 | |
bc67d8a6 | 5806 | segment->p_type = PT_NULL; |
c044fabd | 5807 | |
bc67d8a6 NC |
5808 | /* Since we have deleted P we must restart the outer loop. */ |
5809 | i = 0; | |
5810 | segment = elf_tdata (ibfd)->phdr; | |
5811 | break; | |
5812 | } | |
5813 | else | |
5814 | { | |
c044fabd | 5815 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 5816 | SEGMENT2. */ |
0067a569 AM |
5817 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
5818 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 5819 | |
bc67d8a6 NC |
5820 | if (extra_length > 0) |
5821 | { | |
0067a569 | 5822 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
5823 | segment->p_filesz += extra_length; |
5824 | } | |
c044fabd | 5825 | |
bc67d8a6 NC |
5826 | segment2->p_type = PT_NULL; |
5827 | } | |
5828 | } | |
5829 | } | |
c044fabd | 5830 | |
bc67d8a6 NC |
5831 | /* The second scan attempts to assign sections to segments. */ |
5832 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5833 | i < num_segments; | |
0067a569 | 5834 | i++, segment++) |
bc67d8a6 | 5835 | { |
0067a569 AM |
5836 | unsigned int section_count; |
5837 | asection **sections; | |
5838 | asection *output_section; | |
5839 | unsigned int isec; | |
5840 | bfd_vma matching_lma; | |
5841 | bfd_vma suggested_lma; | |
5842 | unsigned int j; | |
dc810e39 | 5843 | bfd_size_type amt; |
0067a569 AM |
5844 | asection *first_section; |
5845 | bfd_boolean first_matching_lma; | |
5846 | bfd_boolean first_suggested_lma; | |
bc67d8a6 NC |
5847 | |
5848 | if (segment->p_type == PT_NULL) | |
5849 | continue; | |
c044fabd | 5850 | |
9f17e2a6 | 5851 | first_section = NULL; |
bc67d8a6 | 5852 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
5853 | for (section = ibfd->sections, section_count = 0; |
5854 | section != NULL; | |
5855 | section = section->next) | |
9f17e2a6 L |
5856 | { |
5857 | /* Find the first section in the input segment, which may be | |
5858 | removed from the corresponding output segment. */ | |
5859 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
5860 | { | |
5861 | if (first_section == NULL) | |
5862 | first_section = section; | |
5863 | if (section->output_section != NULL) | |
5864 | ++section_count; | |
5865 | } | |
5866 | } | |
811072d8 | 5867 | |
b5f852ea NC |
5868 | /* Allocate a segment map big enough to contain |
5869 | all of the sections we have selected. */ | |
dc810e39 AM |
5870 | amt = sizeof (struct elf_segment_map); |
5871 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 5872 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 5873 | if (map == NULL) |
b34976b6 | 5874 | return FALSE; |
252b5132 RH |
5875 | |
5876 | /* Initialise the fields of the segment map. Default to | |
5877 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
5878 | map->next = NULL; |
5879 | map->p_type = segment->p_type; | |
5880 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 5881 | map->p_flags_valid = 1; |
55d55ac7 | 5882 | |
9f17e2a6 L |
5883 | /* If the first section in the input segment is removed, there is |
5884 | no need to preserve segment physical address in the corresponding | |
5885 | output segment. */ | |
945c025a | 5886 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
5887 | { |
5888 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 5889 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 5890 | } |
252b5132 RH |
5891 | |
5892 | /* Determine if this segment contains the ELF file header | |
5893 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
5894 | map->includes_filehdr = (segment->p_offset == 0 |
5895 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 5896 | map->includes_phdrs = 0; |
252b5132 | 5897 | |
0067a569 | 5898 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 5899 | { |
bc67d8a6 NC |
5900 | map->includes_phdrs = |
5901 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
5902 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
5903 | >= ((bfd_vma) iehdr->e_phoff |
5904 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 5905 | |
bc67d8a6 | 5906 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 5907 | phdr_included = TRUE; |
252b5132 RH |
5908 | } |
5909 | ||
bc67d8a6 | 5910 | if (section_count == 0) |
252b5132 RH |
5911 | { |
5912 | /* Special segments, such as the PT_PHDR segment, may contain | |
5913 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 NC |
5914 | something. They are allowed by the ELF spec however, so only |
5915 | a warning is produced. */ | |
bc67d8a6 | 5916 | if (segment->p_type == PT_LOAD) |
0067a569 AM |
5917 | (*_bfd_error_handler) (_("%B: warning: Empty loadable segment" |
5918 | " detected, is this intentional ?\n"), | |
5919 | ibfd); | |
252b5132 | 5920 | |
bc67d8a6 | 5921 | map->count = 0; |
c044fabd KH |
5922 | *pointer_to_map = map; |
5923 | pointer_to_map = &map->next; | |
252b5132 RH |
5924 | |
5925 | continue; | |
5926 | } | |
5927 | ||
5928 | /* Now scan the sections in the input BFD again and attempt | |
5929 | to add their corresponding output sections to the segment map. | |
5930 | The problem here is how to handle an output section which has | |
5931 | been moved (ie had its LMA changed). There are four possibilities: | |
5932 | ||
5933 | 1. None of the sections have been moved. | |
5934 | In this case we can continue to use the segment LMA from the | |
5935 | input BFD. | |
5936 | ||
5937 | 2. All of the sections have been moved by the same amount. | |
5938 | In this case we can change the segment's LMA to match the LMA | |
5939 | of the first section. | |
5940 | ||
5941 | 3. Some of the sections have been moved, others have not. | |
5942 | In this case those sections which have not been moved can be | |
5943 | placed in the current segment which will have to have its size, | |
5944 | and possibly its LMA changed, and a new segment or segments will | |
5945 | have to be created to contain the other sections. | |
5946 | ||
b5f852ea | 5947 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
5948 | In this case we can change the segment's LMA to match the LMA |
5949 | of the first section and we will have to create a new segment | |
5950 | or segments to contain the other sections. | |
5951 | ||
5952 | In order to save time, we allocate an array to hold the section | |
5953 | pointers that we are interested in. As these sections get assigned | |
5954 | to a segment, they are removed from this array. */ | |
5955 | ||
a50b1753 | 5956 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 5957 | if (sections == NULL) |
b34976b6 | 5958 | return FALSE; |
252b5132 RH |
5959 | |
5960 | /* Step One: Scan for segment vs section LMA conflicts. | |
5961 | Also add the sections to the section array allocated above. | |
5962 | Also add the sections to the current segment. In the common | |
5963 | case, where the sections have not been moved, this means that | |
5964 | we have completely filled the segment, and there is nothing | |
5965 | more to do. */ | |
252b5132 | 5966 | isec = 0; |
72730e0c | 5967 | matching_lma = 0; |
252b5132 | 5968 | suggested_lma = 0; |
0067a569 AM |
5969 | first_matching_lma = TRUE; |
5970 | first_suggested_lma = TRUE; | |
252b5132 | 5971 | |
147d51c2 | 5972 | for (section = ibfd->sections; |
bc67d8a6 NC |
5973 | section != NULL; |
5974 | section = section->next) | |
147d51c2 L |
5975 | if (section == first_section) |
5976 | break; | |
5977 | ||
5978 | for (j = 0; section != NULL; section = section->next) | |
252b5132 | 5979 | { |
caf47ea6 | 5980 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 5981 | { |
bc67d8a6 NC |
5982 | output_section = section->output_section; |
5983 | ||
0067a569 | 5984 | sections[j++] = section; |
252b5132 RH |
5985 | |
5986 | /* The Solaris native linker always sets p_paddr to 0. | |
5987 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
5988 | correct value. Note - some backends require that |
5989 | p_paddr be left as zero. */ | |
5c44b38e | 5990 | if (!p_paddr_valid |
4455705d | 5991 | && segment->p_vaddr != 0 |
0067a569 | 5992 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 5993 | && isec == 0 |
bc67d8a6 | 5994 | && output_section->lma != 0 |
0067a569 AM |
5995 | && output_section->vma == (segment->p_vaddr |
5996 | + (map->includes_filehdr | |
5997 | ? iehdr->e_ehsize | |
5998 | : 0) | |
5999 | + (map->includes_phdrs | |
6000 | ? (iehdr->e_phnum | |
6001 | * iehdr->e_phentsize) | |
6002 | : 0))) | |
bc67d8a6 | 6003 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
6004 | |
6005 | /* Match up the physical address of the segment with the | |
6006 | LMA address of the output section. */ | |
bc67d8a6 | 6007 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 6008 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
6009 | || (bed->want_p_paddr_set_to_zero |
6010 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 6011 | { |
0067a569 AM |
6012 | if (first_matching_lma || output_section->lma < matching_lma) |
6013 | { | |
6014 | matching_lma = output_section->lma; | |
6015 | first_matching_lma = FALSE; | |
6016 | } | |
252b5132 RH |
6017 | |
6018 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 6019 | then it does not overlap any other section within that |
252b5132 | 6020 | segment. */ |
0067a569 AM |
6021 | map->sections[isec++] = output_section; |
6022 | } | |
6023 | else if (first_suggested_lma) | |
6024 | { | |
6025 | suggested_lma = output_section->lma; | |
6026 | first_suggested_lma = FALSE; | |
252b5132 | 6027 | } |
147d51c2 L |
6028 | |
6029 | if (j == section_count) | |
6030 | break; | |
252b5132 RH |
6031 | } |
6032 | } | |
6033 | ||
bc67d8a6 | 6034 | BFD_ASSERT (j == section_count); |
252b5132 RH |
6035 | |
6036 | /* Step Two: Adjust the physical address of the current segment, | |
6037 | if necessary. */ | |
bc67d8a6 | 6038 | if (isec == section_count) |
252b5132 RH |
6039 | { |
6040 | /* All of the sections fitted within the segment as currently | |
6041 | specified. This is the default case. Add the segment to | |
6042 | the list of built segments and carry on to process the next | |
6043 | program header in the input BFD. */ | |
bc67d8a6 | 6044 | map->count = section_count; |
c044fabd KH |
6045 | *pointer_to_map = map; |
6046 | pointer_to_map = &map->next; | |
08a40648 | 6047 | |
5c44b38e AM |
6048 | if (p_paddr_valid |
6049 | && !bed->want_p_paddr_set_to_zero | |
147d51c2 | 6050 | && matching_lma != map->p_paddr |
5c44b38e AM |
6051 | && !map->includes_filehdr |
6052 | && !map->includes_phdrs) | |
3271a814 NS |
6053 | /* There is some padding before the first section in the |
6054 | segment. So, we must account for that in the output | |
6055 | segment's vma. */ | |
6056 | map->p_vaddr_offset = matching_lma - map->p_paddr; | |
08a40648 | 6057 | |
252b5132 RH |
6058 | free (sections); |
6059 | continue; | |
6060 | } | |
252b5132 RH |
6061 | else |
6062 | { | |
0067a569 | 6063 | if (!first_matching_lma) |
72730e0c AM |
6064 | { |
6065 | /* At least one section fits inside the current segment. | |
6066 | Keep it, but modify its physical address to match the | |
6067 | LMA of the first section that fitted. */ | |
bc67d8a6 | 6068 | map->p_paddr = matching_lma; |
72730e0c AM |
6069 | } |
6070 | else | |
6071 | { | |
6072 | /* None of the sections fitted inside the current segment. | |
6073 | Change the current segment's physical address to match | |
6074 | the LMA of the first section. */ | |
bc67d8a6 | 6075 | map->p_paddr = suggested_lma; |
72730e0c AM |
6076 | } |
6077 | ||
bc67d8a6 NC |
6078 | /* Offset the segment physical address from the lma |
6079 | to allow for space taken up by elf headers. */ | |
6080 | if (map->includes_filehdr) | |
010c8431 AM |
6081 | { |
6082 | if (map->p_paddr >= iehdr->e_ehsize) | |
6083 | map->p_paddr -= iehdr->e_ehsize; | |
6084 | else | |
6085 | { | |
6086 | map->includes_filehdr = FALSE; | |
6087 | map->includes_phdrs = FALSE; | |
6088 | } | |
6089 | } | |
252b5132 | 6090 | |
bc67d8a6 NC |
6091 | if (map->includes_phdrs) |
6092 | { | |
010c8431 AM |
6093 | if (map->p_paddr >= iehdr->e_phnum * iehdr->e_phentsize) |
6094 | { | |
6095 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
6096 | ||
6097 | /* iehdr->e_phnum is just an estimate of the number | |
6098 | of program headers that we will need. Make a note | |
6099 | here of the number we used and the segment we chose | |
6100 | to hold these headers, so that we can adjust the | |
6101 | offset when we know the correct value. */ | |
6102 | phdr_adjust_num = iehdr->e_phnum; | |
6103 | phdr_adjust_seg = map; | |
6104 | } | |
6105 | else | |
6106 | map->includes_phdrs = FALSE; | |
bc67d8a6 | 6107 | } |
252b5132 RH |
6108 | } |
6109 | ||
6110 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 6111 | those that fit to the current segment and removing them from the |
252b5132 RH |
6112 | sections array; but making sure not to leave large gaps. Once all |
6113 | possible sections have been assigned to the current segment it is | |
6114 | added to the list of built segments and if sections still remain | |
6115 | to be assigned, a new segment is constructed before repeating | |
6116 | the loop. */ | |
6117 | isec = 0; | |
6118 | do | |
6119 | { | |
bc67d8a6 | 6120 | map->count = 0; |
252b5132 | 6121 | suggested_lma = 0; |
0067a569 | 6122 | first_suggested_lma = TRUE; |
252b5132 RH |
6123 | |
6124 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 6125 | for (j = 0; j < section_count; j++) |
252b5132 | 6126 | { |
bc67d8a6 | 6127 | section = sections[j]; |
252b5132 | 6128 | |
bc67d8a6 | 6129 | if (section == NULL) |
252b5132 RH |
6130 | continue; |
6131 | ||
bc67d8a6 | 6132 | output_section = section->output_section; |
252b5132 | 6133 | |
bc67d8a6 | 6134 | BFD_ASSERT (output_section != NULL); |
c044fabd | 6135 | |
bc67d8a6 NC |
6136 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
6137 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 6138 | { |
bc67d8a6 | 6139 | if (map->count == 0) |
252b5132 RH |
6140 | { |
6141 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
6142 | the beginning of the segment, then something is |
6143 | wrong. */ | |
0067a569 AM |
6144 | if (output_section->lma |
6145 | != (map->p_paddr | |
6146 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
6147 | + (map->includes_phdrs | |
6148 | ? iehdr->e_phnum * iehdr->e_phentsize | |
6149 | : 0))) | |
252b5132 RH |
6150 | abort (); |
6151 | } | |
6152 | else | |
6153 | { | |
0067a569 | 6154 | asection *prev_sec; |
252b5132 | 6155 | |
bc67d8a6 | 6156 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
6157 | |
6158 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
6159 | and the start of this section is more than |
6160 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 6161 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 6162 | maxpagesize) |
caf47ea6 | 6163 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 6164 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 6165 | > output_section->lma)) |
252b5132 | 6166 | { |
0067a569 AM |
6167 | if (first_suggested_lma) |
6168 | { | |
6169 | suggested_lma = output_section->lma; | |
6170 | first_suggested_lma = FALSE; | |
6171 | } | |
252b5132 RH |
6172 | |
6173 | continue; | |
6174 | } | |
6175 | } | |
6176 | ||
bc67d8a6 | 6177 | map->sections[map->count++] = output_section; |
252b5132 RH |
6178 | ++isec; |
6179 | sections[j] = NULL; | |
b34976b6 | 6180 | section->segment_mark = TRUE; |
252b5132 | 6181 | } |
0067a569 AM |
6182 | else if (first_suggested_lma) |
6183 | { | |
6184 | suggested_lma = output_section->lma; | |
6185 | first_suggested_lma = FALSE; | |
6186 | } | |
252b5132 RH |
6187 | } |
6188 | ||
bc67d8a6 | 6189 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
6190 | |
6191 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
6192 | *pointer_to_map = map; |
6193 | pointer_to_map = &map->next; | |
252b5132 | 6194 | |
bc67d8a6 | 6195 | if (isec < section_count) |
252b5132 RH |
6196 | { |
6197 | /* We still have not allocated all of the sections to | |
6198 | segments. Create a new segment here, initialise it | |
6199 | and carry on looping. */ | |
dc810e39 AM |
6200 | amt = sizeof (struct elf_segment_map); |
6201 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 6202 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6203 | if (map == NULL) |
5ed6aba4 NC |
6204 | { |
6205 | free (sections); | |
6206 | return FALSE; | |
6207 | } | |
252b5132 RH |
6208 | |
6209 | /* Initialise the fields of the segment map. Set the physical | |
6210 | physical address to the LMA of the first section that has | |
6211 | not yet been assigned. */ | |
0067a569 AM |
6212 | map->next = NULL; |
6213 | map->p_type = segment->p_type; | |
6214 | map->p_flags = segment->p_flags; | |
6215 | map->p_flags_valid = 1; | |
6216 | map->p_paddr = suggested_lma; | |
5c44b38e | 6217 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 6218 | map->includes_filehdr = 0; |
0067a569 | 6219 | map->includes_phdrs = 0; |
252b5132 RH |
6220 | } |
6221 | } | |
bc67d8a6 | 6222 | while (isec < section_count); |
252b5132 RH |
6223 | |
6224 | free (sections); | |
6225 | } | |
6226 | ||
12bd6957 | 6227 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
6228 | |
6229 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 6230 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
6231 | the offset if necessary. */ |
6232 | if (phdr_adjust_seg != NULL) | |
6233 | { | |
6234 | unsigned int count; | |
c044fabd | 6235 | |
bc67d8a6 | 6236 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 6237 | count++; |
252b5132 | 6238 | |
bc67d8a6 NC |
6239 | if (count > phdr_adjust_num) |
6240 | phdr_adjust_seg->p_paddr | |
6241 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
6242 | } | |
c044fabd | 6243 | |
bc67d8a6 | 6244 | #undef SEGMENT_END |
eecdbe52 | 6245 | #undef SECTION_SIZE |
bc67d8a6 NC |
6246 | #undef IS_CONTAINED_BY_VMA |
6247 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 6248 | #undef IS_NOTE |
252b5132 | 6249 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 6250 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 6251 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
6252 | #undef INCLUDE_SECTION_IN_SEGMENT |
6253 | #undef SEGMENT_AFTER_SEGMENT | |
6254 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 6255 | return TRUE; |
252b5132 RH |
6256 | } |
6257 | ||
84d1d650 L |
6258 | /* Copy ELF program header information. */ |
6259 | ||
6260 | static bfd_boolean | |
6261 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
6262 | { | |
6263 | Elf_Internal_Ehdr *iehdr; | |
6264 | struct elf_segment_map *map; | |
6265 | struct elf_segment_map *map_first; | |
6266 | struct elf_segment_map **pointer_to_map; | |
6267 | Elf_Internal_Phdr *segment; | |
6268 | unsigned int i; | |
6269 | unsigned int num_segments; | |
6270 | bfd_boolean phdr_included = FALSE; | |
88967714 | 6271 | bfd_boolean p_paddr_valid; |
84d1d650 L |
6272 | |
6273 | iehdr = elf_elfheader (ibfd); | |
6274 | ||
6275 | map_first = NULL; | |
6276 | pointer_to_map = &map_first; | |
6277 | ||
88967714 AM |
6278 | /* If all the segment p_paddr fields are zero, don't set |
6279 | map->p_paddr_valid. */ | |
6280 | p_paddr_valid = FALSE; | |
84d1d650 | 6281 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
6282 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6283 | i < num_segments; | |
6284 | i++, segment++) | |
6285 | if (segment->p_paddr != 0) | |
6286 | { | |
6287 | p_paddr_valid = TRUE; | |
6288 | break; | |
6289 | } | |
6290 | ||
84d1d650 L |
6291 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6292 | i < num_segments; | |
6293 | i++, segment++) | |
6294 | { | |
6295 | asection *section; | |
6296 | unsigned int section_count; | |
6297 | bfd_size_type amt; | |
6298 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 6299 | asection *first_section = NULL; |
a76e6f2f | 6300 | asection *lowest_section; |
84d1d650 | 6301 | |
84d1d650 L |
6302 | /* Compute how many sections are in this segment. */ |
6303 | for (section = ibfd->sections, section_count = 0; | |
6304 | section != NULL; | |
6305 | section = section->next) | |
6306 | { | |
6307 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6308 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 6309 | { |
a76e6f2f AM |
6310 | if (first_section == NULL) |
6311 | first_section = section; | |
3271a814 NS |
6312 | section_count++; |
6313 | } | |
84d1d650 L |
6314 | } |
6315 | ||
6316 | /* Allocate a segment map big enough to contain | |
6317 | all of the sections we have selected. */ | |
6318 | amt = sizeof (struct elf_segment_map); | |
6319 | if (section_count != 0) | |
6320 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6321 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
6322 | if (map == NULL) |
6323 | return FALSE; | |
6324 | ||
6325 | /* Initialize the fields of the output segment map with the | |
6326 | input segment. */ | |
6327 | map->next = NULL; | |
6328 | map->p_type = segment->p_type; | |
6329 | map->p_flags = segment->p_flags; | |
6330 | map->p_flags_valid = 1; | |
6331 | map->p_paddr = segment->p_paddr; | |
88967714 | 6332 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
6333 | map->p_align = segment->p_align; |
6334 | map->p_align_valid = 1; | |
3271a814 | 6335 | map->p_vaddr_offset = 0; |
84d1d650 | 6336 | |
04c3a755 NS |
6337 | if (map->p_type == PT_GNU_RELRO |
6338 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
6339 | { |
6340 | /* The PT_GNU_RELRO segment may contain the first a few | |
6341 | bytes in the .got.plt section even if the whole .got.plt | |
6342 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
6343 | change the size of the PT_GNU_RELRO segment. |
6344 | Similarly, PT_GNU_STACK size is significant on uclinux | |
6345 | systems. */ | |
9433b9b1 | 6346 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
6347 | map->p_size_valid = 1; |
6348 | } | |
6349 | ||
84d1d650 L |
6350 | /* Determine if this segment contains the ELF file header |
6351 | and if it contains the program headers themselves. */ | |
6352 | map->includes_filehdr = (segment->p_offset == 0 | |
6353 | && segment->p_filesz >= iehdr->e_ehsize); | |
6354 | ||
6355 | map->includes_phdrs = 0; | |
6356 | if (! phdr_included || segment->p_type != PT_LOAD) | |
6357 | { | |
6358 | map->includes_phdrs = | |
6359 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6360 | && (segment->p_offset + segment->p_filesz | |
6361 | >= ((bfd_vma) iehdr->e_phoff | |
6362 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
6363 | ||
6364 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
6365 | phdr_included = TRUE; | |
6366 | } | |
6367 | ||
bbefd0a9 | 6368 | lowest_section = NULL; |
84d1d650 L |
6369 | if (section_count != 0) |
6370 | { | |
6371 | unsigned int isec = 0; | |
6372 | ||
53020534 | 6373 | for (section = first_section; |
84d1d650 L |
6374 | section != NULL; |
6375 | section = section->next) | |
6376 | { | |
6377 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6378 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
6379 | { |
6380 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
6381 | if ((section->flags & SEC_ALLOC) != 0) |
6382 | { | |
6383 | bfd_vma seg_off; | |
6384 | ||
bbefd0a9 AM |
6385 | if (lowest_section == NULL |
6386 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
6387 | lowest_section = section; |
6388 | ||
a76e6f2f AM |
6389 | /* Section lmas are set up from PT_LOAD header |
6390 | p_paddr in _bfd_elf_make_section_from_shdr. | |
6391 | If this header has a p_paddr that disagrees | |
6392 | with the section lma, flag the p_paddr as | |
6393 | invalid. */ | |
6394 | if ((section->flags & SEC_LOAD) != 0) | |
6395 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
6396 | else | |
6397 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
6398 | if (section->lma - segment->p_paddr != seg_off) | |
6399 | map->p_paddr_valid = FALSE; | |
6400 | } | |
53020534 L |
6401 | if (isec == section_count) |
6402 | break; | |
6403 | } | |
84d1d650 L |
6404 | } |
6405 | } | |
6406 | ||
a76e6f2f AM |
6407 | if (map->includes_filehdr && lowest_section != NULL) |
6408 | /* We need to keep the space used by the headers fixed. */ | |
6409 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 6410 | |
a76e6f2f AM |
6411 | if (!map->includes_phdrs |
6412 | && !map->includes_filehdr | |
6413 | && map->p_paddr_valid) | |
6414 | /* There is some other padding before the first section. */ | |
6415 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
6416 | - segment->p_paddr); | |
6417 | ||
84d1d650 L |
6418 | map->count = section_count; |
6419 | *pointer_to_map = map; | |
6420 | pointer_to_map = &map->next; | |
6421 | } | |
6422 | ||
12bd6957 | 6423 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
6424 | return TRUE; |
6425 | } | |
6426 | ||
6427 | /* Copy private BFD data. This copies or rewrites ELF program header | |
6428 | information. */ | |
6429 | ||
6430 | static bfd_boolean | |
6431 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
6432 | { | |
84d1d650 L |
6433 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
6434 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6435 | return TRUE; | |
6436 | ||
6437 | if (elf_tdata (ibfd)->phdr == NULL) | |
6438 | return TRUE; | |
6439 | ||
6440 | if (ibfd->xvec == obfd->xvec) | |
6441 | { | |
cb3ff1e5 NC |
6442 | /* Check to see if any sections in the input BFD |
6443 | covered by ELF program header have changed. */ | |
d55ce4e2 | 6444 | Elf_Internal_Phdr *segment; |
84d1d650 L |
6445 | asection *section, *osec; |
6446 | unsigned int i, num_segments; | |
6447 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
6448 | const struct elf_backend_data *bed; |
6449 | ||
6450 | bed = get_elf_backend_data (ibfd); | |
6451 | ||
6452 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
6453 | if (bed->want_p_paddr_set_to_zero) | |
6454 | goto rewrite; | |
84d1d650 L |
6455 | |
6456 | /* Initialize the segment mark field. */ | |
6457 | for (section = obfd->sections; section != NULL; | |
6458 | section = section->next) | |
6459 | section->segment_mark = FALSE; | |
6460 | ||
6461 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
6462 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6463 | i < num_segments; | |
6464 | i++, segment++) | |
6465 | { | |
5f6999aa NC |
6466 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
6467 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
6468 | which severly confuses things, so always regenerate the segment | |
6469 | map in this case. */ | |
6470 | if (segment->p_paddr == 0 | |
6471 | && segment->p_memsz == 0 | |
6472 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 6473 | goto rewrite; |
5f6999aa | 6474 | |
84d1d650 L |
6475 | for (section = ibfd->sections; |
6476 | section != NULL; section = section->next) | |
6477 | { | |
6478 | /* We mark the output section so that we know it comes | |
6479 | from the input BFD. */ | |
6480 | osec = section->output_section; | |
6481 | if (osec) | |
6482 | osec->segment_mark = TRUE; | |
6483 | ||
6484 | /* Check if this section is covered by the segment. */ | |
6485 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6486 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
6487 | { |
6488 | /* FIXME: Check if its output section is changed or | |
6489 | removed. What else do we need to check? */ | |
6490 | if (osec == NULL | |
6491 | || section->flags != osec->flags | |
6492 | || section->lma != osec->lma | |
6493 | || section->vma != osec->vma | |
6494 | || section->size != osec->size | |
6495 | || section->rawsize != osec->rawsize | |
6496 | || section->alignment_power != osec->alignment_power) | |
6497 | goto rewrite; | |
6498 | } | |
6499 | } | |
6500 | } | |
6501 | ||
cb3ff1e5 | 6502 | /* Check to see if any output section do not come from the |
84d1d650 L |
6503 | input BFD. */ |
6504 | for (section = obfd->sections; section != NULL; | |
6505 | section = section->next) | |
6506 | { | |
6507 | if (section->segment_mark == FALSE) | |
6508 | goto rewrite; | |
6509 | else | |
6510 | section->segment_mark = FALSE; | |
6511 | } | |
6512 | ||
6513 | return copy_elf_program_header (ibfd, obfd); | |
6514 | } | |
6515 | ||
6516 | rewrite: | |
f1d85785 L |
6517 | if (ibfd->xvec == obfd->xvec) |
6518 | { | |
6519 | /* When rewriting program header, set the output maxpagesize to | |
6520 | the maximum alignment of input PT_LOAD segments. */ | |
6521 | Elf_Internal_Phdr *segment; | |
6522 | unsigned int i; | |
6523 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
6524 | bfd_vma maxpagesize = 0; | |
6525 | ||
6526 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6527 | i < num_segments; | |
6528 | i++, segment++) | |
6529 | if (segment->p_type == PT_LOAD | |
6530 | && maxpagesize < segment->p_align) | |
6531 | maxpagesize = segment->p_align; | |
6532 | ||
6533 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
6534 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
6535 | } | |
6536 | ||
84d1d650 L |
6537 | return rewrite_elf_program_header (ibfd, obfd); |
6538 | } | |
6539 | ||
ccd2ec6a L |
6540 | /* Initialize private output section information from input section. */ |
6541 | ||
6542 | bfd_boolean | |
6543 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
6544 | asection *isec, | |
6545 | bfd *obfd, | |
6546 | asection *osec, | |
6547 | struct bfd_link_info *link_info) | |
6548 | ||
6549 | { | |
6550 | Elf_Internal_Shdr *ihdr, *ohdr; | |
dfa7b0b8 | 6551 | bfd_boolean final_link = link_info != NULL && !link_info->relocatable; |
ccd2ec6a L |
6552 | |
6553 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6554 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
6555 | return TRUE; | |
6556 | ||
ba85c43e NC |
6557 | BFD_ASSERT (elf_section_data (osec) != NULL); |
6558 | ||
dfa7b0b8 AM |
6559 | /* For objcopy and relocatable link, don't copy the output ELF |
6560 | section type from input if the output BFD section flags have been | |
6561 | set to something different. For a final link allow some flags | |
6562 | that the linker clears to differ. */ | |
42bb2e33 | 6563 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
6564 | && (osec->flags == isec->flags |
6565 | || (final_link | |
6566 | && ((osec->flags ^ isec->flags) | |
0814be7d | 6567 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 6568 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
6569 | |
6570 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
6571 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
6572 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a L |
6573 | |
6574 | /* Set things up for objcopy and relocatable link. The output | |
6575 | SHT_GROUP section will have its elf_next_in_group pointing back | |
6576 | to the input group members. Ignore linker created group section. | |
6577 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
dfa7b0b8 | 6578 | if (!final_link) |
ccd2ec6a L |
6579 | { |
6580 | if (elf_sec_group (isec) == NULL | |
6581 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0) | |
6582 | { | |
6583 | if (elf_section_flags (isec) & SHF_GROUP) | |
6584 | elf_section_flags (osec) |= SHF_GROUP; | |
6585 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
9659de1c | 6586 | elf_section_data (osec)->group = elf_section_data (isec)->group; |
ccd2ec6a L |
6587 | } |
6588 | } | |
6589 | ||
6590 | ihdr = &elf_section_data (isec)->this_hdr; | |
6591 | ||
6592 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
6593 | don't use the output section of the linked-to section since it | |
6594 | may be NULL at this point. */ | |
6595 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
6596 | { | |
6597 | ohdr = &elf_section_data (osec)->this_hdr; | |
6598 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
6599 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
6600 | } | |
6601 | ||
6602 | osec->use_rela_p = isec->use_rela_p; | |
6603 | ||
6604 | return TRUE; | |
6605 | } | |
6606 | ||
252b5132 RH |
6607 | /* Copy private section information. This copies over the entsize |
6608 | field, and sometimes the info field. */ | |
6609 | ||
b34976b6 | 6610 | bfd_boolean |
217aa764 AM |
6611 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
6612 | asection *isec, | |
6613 | bfd *obfd, | |
6614 | asection *osec) | |
252b5132 RH |
6615 | { |
6616 | Elf_Internal_Shdr *ihdr, *ohdr; | |
6617 | ||
6618 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6619 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 6620 | return TRUE; |
252b5132 | 6621 | |
252b5132 RH |
6622 | ihdr = &elf_section_data (isec)->this_hdr; |
6623 | ohdr = &elf_section_data (osec)->this_hdr; | |
6624 | ||
6625 | ohdr->sh_entsize = ihdr->sh_entsize; | |
6626 | ||
6627 | if (ihdr->sh_type == SHT_SYMTAB | |
6628 | || ihdr->sh_type == SHT_DYNSYM | |
6629 | || ihdr->sh_type == SHT_GNU_verneed | |
6630 | || ihdr->sh_type == SHT_GNU_verdef) | |
6631 | ohdr->sh_info = ihdr->sh_info; | |
6632 | ||
ccd2ec6a L |
6633 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
6634 | NULL); | |
252b5132 RH |
6635 | } |
6636 | ||
d0bf826b AM |
6637 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
6638 | necessary if we are removing either the SHT_GROUP section or any of | |
6639 | the group member sections. DISCARDED is the value that a section's | |
6640 | output_section has if the section will be discarded, NULL when this | |
6641 | function is called from objcopy, bfd_abs_section_ptr when called | |
6642 | from the linker. */ | |
80fccad2 BW |
6643 | |
6644 | bfd_boolean | |
d0bf826b | 6645 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 6646 | { |
30288845 AM |
6647 | asection *isec; |
6648 | ||
30288845 | 6649 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 6650 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
6651 | { |
6652 | asection *first = elf_next_in_group (isec); | |
6653 | asection *s = first; | |
d0bf826b AM |
6654 | bfd_size_type removed = 0; |
6655 | ||
30288845 AM |
6656 | while (s != NULL) |
6657 | { | |
415f38a6 AM |
6658 | /* If this member section is being output but the |
6659 | SHT_GROUP section is not, then clear the group info | |
6660 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
6661 | if (s->output_section != discarded |
6662 | && isec->output_section == discarded) | |
30288845 AM |
6663 | { |
6664 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
6665 | elf_group_name (s->output_section) = NULL; | |
6666 | } | |
415f38a6 AM |
6667 | /* Conversely, if the member section is not being output |
6668 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
6669 | else if (s->output_section == discarded |
6670 | && isec->output_section != discarded) | |
6671 | removed += 4; | |
30288845 AM |
6672 | s = elf_next_in_group (s); |
6673 | if (s == first) | |
6674 | break; | |
6675 | } | |
d0bf826b AM |
6676 | if (removed != 0) |
6677 | { | |
6678 | if (discarded != NULL) | |
6679 | { | |
6680 | /* If we've been called for ld -r, then we need to | |
6681 | adjust the input section size. This function may | |
6682 | be called multiple times, so save the original | |
6683 | size. */ | |
6684 | if (isec->rawsize == 0) | |
6685 | isec->rawsize = isec->size; | |
6686 | isec->size = isec->rawsize - removed; | |
6687 | } | |
6688 | else | |
6689 | { | |
6690 | /* Adjust the output section size when called from | |
6691 | objcopy. */ | |
6692 | isec->output_section->size -= removed; | |
6693 | } | |
6694 | } | |
30288845 AM |
6695 | } |
6696 | ||
80fccad2 BW |
6697 | return TRUE; |
6698 | } | |
6699 | ||
d0bf826b AM |
6700 | /* Copy private header information. */ |
6701 | ||
6702 | bfd_boolean | |
6703 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
6704 | { | |
6705 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6706 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6707 | return TRUE; | |
6708 | ||
6709 | /* Copy over private BFD data if it has not already been copied. | |
6710 | This must be done here, rather than in the copy_private_bfd_data | |
6711 | entry point, because the latter is called after the section | |
6712 | contents have been set, which means that the program headers have | |
6713 | already been worked out. */ | |
12bd6957 | 6714 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
6715 | { |
6716 | if (! copy_private_bfd_data (ibfd, obfd)) | |
6717 | return FALSE; | |
6718 | } | |
6719 | ||
6720 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
6721 | } | |
6722 | ||
252b5132 RH |
6723 | /* Copy private symbol information. If this symbol is in a section |
6724 | which we did not map into a BFD section, try to map the section | |
6725 | index correctly. We use special macro definitions for the mapped | |
6726 | section indices; these definitions are interpreted by the | |
6727 | swap_out_syms function. */ | |
6728 | ||
9ad5cbcf AM |
6729 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
6730 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
6731 | #define MAP_STRTAB (SHN_HIOS + 3) | |
6732 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
6733 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 6734 | |
b34976b6 | 6735 | bfd_boolean |
217aa764 AM |
6736 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
6737 | asymbol *isymarg, | |
6738 | bfd *obfd, | |
6739 | asymbol *osymarg) | |
252b5132 RH |
6740 | { |
6741 | elf_symbol_type *isym, *osym; | |
6742 | ||
6743 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6744 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 6745 | return TRUE; |
252b5132 RH |
6746 | |
6747 | isym = elf_symbol_from (ibfd, isymarg); | |
6748 | osym = elf_symbol_from (obfd, osymarg); | |
6749 | ||
6750 | if (isym != NULL | |
8424d8f5 | 6751 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
6752 | && osym != NULL |
6753 | && bfd_is_abs_section (isym->symbol.section)) | |
6754 | { | |
6755 | unsigned int shndx; | |
6756 | ||
6757 | shndx = isym->internal_elf_sym.st_shndx; | |
6758 | if (shndx == elf_onesymtab (ibfd)) | |
6759 | shndx = MAP_ONESYMTAB; | |
6760 | else if (shndx == elf_dynsymtab (ibfd)) | |
6761 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 6762 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 6763 | shndx = MAP_STRTAB; |
12bd6957 | 6764 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 6765 | shndx = MAP_SHSTRTAB; |
12bd6957 | 6766 | else if (shndx == elf_symtab_shndx (ibfd)) |
9ad5cbcf | 6767 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
6768 | osym->internal_elf_sym.st_shndx = shndx; |
6769 | } | |
6770 | ||
b34976b6 | 6771 | return TRUE; |
252b5132 RH |
6772 | } |
6773 | ||
6774 | /* Swap out the symbols. */ | |
6775 | ||
b34976b6 | 6776 | static bfd_boolean |
217aa764 AM |
6777 | swap_out_syms (bfd *abfd, |
6778 | struct bfd_strtab_hash **sttp, | |
6779 | int relocatable_p) | |
252b5132 | 6780 | { |
9c5bfbb7 | 6781 | const struct elf_backend_data *bed; |
079e9a2f AM |
6782 | int symcount; |
6783 | asymbol **syms; | |
6784 | struct bfd_strtab_hash *stt; | |
6785 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 6786 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 6787 | Elf_Internal_Shdr *symstrtab_hdr; |
f075ee0c AM |
6788 | bfd_byte *outbound_syms; |
6789 | bfd_byte *outbound_shndx; | |
079e9a2f | 6790 | int idx; |
12bd6957 | 6791 | unsigned int num_locals; |
079e9a2f | 6792 | bfd_size_type amt; |
174fd7f9 | 6793 | bfd_boolean name_local_sections; |
252b5132 | 6794 | |
12bd6957 | 6795 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 6796 | return FALSE; |
252b5132 | 6797 | |
c044fabd | 6798 | /* Dump out the symtabs. */ |
079e9a2f AM |
6799 | stt = _bfd_elf_stringtab_init (); |
6800 | if (stt == NULL) | |
b34976b6 | 6801 | return FALSE; |
252b5132 | 6802 | |
079e9a2f AM |
6803 | bed = get_elf_backend_data (abfd); |
6804 | symcount = bfd_get_symcount (abfd); | |
6805 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6806 | symtab_hdr->sh_type = SHT_SYMTAB; | |
6807 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
6808 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 6809 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 6810 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
6811 | |
6812 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
6813 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
6814 | ||
a50b1753 NC |
6815 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
6816 | bed->s->sizeof_sym); | |
079e9a2f | 6817 | if (outbound_syms == NULL) |
5ed6aba4 NC |
6818 | { |
6819 | _bfd_stringtab_free (stt); | |
6820 | return FALSE; | |
6821 | } | |
217aa764 | 6822 | symtab_hdr->contents = outbound_syms; |
252b5132 | 6823 | |
9ad5cbcf AM |
6824 | outbound_shndx = NULL; |
6825 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
6826 | if (symtab_shndx_hdr->sh_name != 0) | |
6827 | { | |
6828 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
a50b1753 NC |
6829 | outbound_shndx = (bfd_byte *) |
6830 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
9ad5cbcf | 6831 | if (outbound_shndx == NULL) |
5ed6aba4 NC |
6832 | { |
6833 | _bfd_stringtab_free (stt); | |
6834 | return FALSE; | |
6835 | } | |
6836 | ||
9ad5cbcf AM |
6837 | symtab_shndx_hdr->contents = outbound_shndx; |
6838 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
6839 | symtab_shndx_hdr->sh_size = amt; | |
6840 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
6841 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
6842 | } | |
6843 | ||
589e6347 | 6844 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
6845 | { |
6846 | /* Fill in zeroth symbol and swap it out. */ | |
6847 | Elf_Internal_Sym sym; | |
6848 | sym.st_name = 0; | |
6849 | sym.st_value = 0; | |
6850 | sym.st_size = 0; | |
6851 | sym.st_info = 0; | |
6852 | sym.st_other = 0; | |
6853 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 6854 | sym.st_target_internal = 0; |
9ad5cbcf | 6855 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6856 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6857 | if (outbound_shndx != NULL) |
6858 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6859 | } |
252b5132 | 6860 | |
174fd7f9 RS |
6861 | name_local_sections |
6862 | = (bed->elf_backend_name_local_section_symbols | |
6863 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
6864 | ||
079e9a2f AM |
6865 | syms = bfd_get_outsymbols (abfd); |
6866 | for (idx = 0; idx < symcount; idx++) | |
252b5132 | 6867 | { |
252b5132 | 6868 | Elf_Internal_Sym sym; |
079e9a2f AM |
6869 | bfd_vma value = syms[idx]->value; |
6870 | elf_symbol_type *type_ptr; | |
6871 | flagword flags = syms[idx]->flags; | |
6872 | int type; | |
252b5132 | 6873 | |
174fd7f9 RS |
6874 | if (!name_local_sections |
6875 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
6876 | { |
6877 | /* Local section symbols have no name. */ | |
6878 | sym.st_name = 0; | |
6879 | } | |
6880 | else | |
6881 | { | |
6882 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |
6883 | syms[idx]->name, | |
b34976b6 | 6884 | TRUE, FALSE); |
079e9a2f | 6885 | if (sym.st_name == (unsigned long) -1) |
5ed6aba4 NC |
6886 | { |
6887 | _bfd_stringtab_free (stt); | |
6888 | return FALSE; | |
6889 | } | |
079e9a2f | 6890 | } |
252b5132 | 6891 | |
079e9a2f | 6892 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 6893 | |
079e9a2f AM |
6894 | if ((flags & BSF_SECTION_SYM) == 0 |
6895 | && bfd_is_com_section (syms[idx]->section)) | |
6896 | { | |
6897 | /* ELF common symbols put the alignment into the `value' field, | |
6898 | and the size into the `size' field. This is backwards from | |
6899 | how BFD handles it, so reverse it here. */ | |
6900 | sym.st_size = value; | |
6901 | if (type_ptr == NULL | |
6902 | || type_ptr->internal_elf_sym.st_value == 0) | |
6903 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
6904 | else | |
6905 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
6906 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
6907 | (abfd, syms[idx]->section); | |
6908 | } | |
6909 | else | |
6910 | { | |
6911 | asection *sec = syms[idx]->section; | |
cb33740c | 6912 | unsigned int shndx; |
252b5132 | 6913 | |
079e9a2f AM |
6914 | if (sec->output_section) |
6915 | { | |
6916 | value += sec->output_offset; | |
6917 | sec = sec->output_section; | |
6918 | } | |
589e6347 | 6919 | |
079e9a2f AM |
6920 | /* Don't add in the section vma for relocatable output. */ |
6921 | if (! relocatable_p) | |
6922 | value += sec->vma; | |
6923 | sym.st_value = value; | |
6924 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
6925 | ||
6926 | if (bfd_is_abs_section (sec) | |
6927 | && type_ptr != NULL | |
6928 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
6929 | { | |
6930 | /* This symbol is in a real ELF section which we did | |
6931 | not create as a BFD section. Undo the mapping done | |
6932 | by copy_private_symbol_data. */ | |
6933 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
6934 | switch (shndx) | |
6935 | { | |
6936 | case MAP_ONESYMTAB: | |
6937 | shndx = elf_onesymtab (abfd); | |
6938 | break; | |
6939 | case MAP_DYNSYMTAB: | |
6940 | shndx = elf_dynsymtab (abfd); | |
6941 | break; | |
6942 | case MAP_STRTAB: | |
12bd6957 | 6943 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
6944 | break; |
6945 | case MAP_SHSTRTAB: | |
12bd6957 | 6946 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 6947 | break; |
9ad5cbcf | 6948 | case MAP_SYM_SHNDX: |
12bd6957 | 6949 | shndx = elf_symtab_shndx (abfd); |
9ad5cbcf | 6950 | break; |
079e9a2f | 6951 | default: |
15bc576a | 6952 | shndx = SHN_ABS; |
079e9a2f AM |
6953 | break; |
6954 | } | |
6955 | } | |
6956 | else | |
6957 | { | |
6958 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 6959 | |
cb33740c | 6960 | if (shndx == SHN_BAD) |
079e9a2f AM |
6961 | { |
6962 | asection *sec2; | |
6963 | ||
6964 | /* Writing this would be a hell of a lot easier if | |
6965 | we had some decent documentation on bfd, and | |
6966 | knew what to expect of the library, and what to | |
6967 | demand of applications. For example, it | |
6968 | appears that `objcopy' might not set the | |
6969 | section of a symbol to be a section that is | |
6970 | actually in the output file. */ | |
6971 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
589e6347 NC |
6972 | if (sec2 == NULL) |
6973 | { | |
6974 | _bfd_error_handler (_("\ | |
6975 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
6976 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
6977 | sec->name); | |
811072d8 | 6978 | bfd_set_error (bfd_error_invalid_operation); |
5ed6aba4 | 6979 | _bfd_stringtab_free (stt); |
589e6347 NC |
6980 | return FALSE; |
6981 | } | |
811072d8 | 6982 | |
079e9a2f | 6983 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); |
cb33740c | 6984 | BFD_ASSERT (shndx != SHN_BAD); |
079e9a2f AM |
6985 | } |
6986 | } | |
252b5132 | 6987 | |
079e9a2f AM |
6988 | sym.st_shndx = shndx; |
6989 | } | |
252b5132 | 6990 | |
13ae64f3 JJ |
6991 | if ((flags & BSF_THREAD_LOCAL) != 0) |
6992 | type = STT_TLS; | |
d8045f23 NC |
6993 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
6994 | type = STT_GNU_IFUNC; | |
13ae64f3 | 6995 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
6996 | type = STT_FUNC; |
6997 | else if ((flags & BSF_OBJECT) != 0) | |
6998 | type = STT_OBJECT; | |
d9352518 DB |
6999 | else if ((flags & BSF_RELC) != 0) |
7000 | type = STT_RELC; | |
7001 | else if ((flags & BSF_SRELC) != 0) | |
7002 | type = STT_SRELC; | |
079e9a2f AM |
7003 | else |
7004 | type = STT_NOTYPE; | |
252b5132 | 7005 | |
13ae64f3 JJ |
7006 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
7007 | type = STT_TLS; | |
7008 | ||
589e6347 | 7009 | /* Processor-specific types. */ |
079e9a2f AM |
7010 | if (type_ptr != NULL |
7011 | && bed->elf_backend_get_symbol_type) | |
7012 | type = ((*bed->elf_backend_get_symbol_type) | |
7013 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 7014 | |
079e9a2f AM |
7015 | if (flags & BSF_SECTION_SYM) |
7016 | { | |
7017 | if (flags & BSF_GLOBAL) | |
7018 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
7019 | else | |
7020 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
7021 | } | |
7022 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 7023 | { |
504b7d20 | 7024 | #ifdef USE_STT_COMMON |
0a40daed MK |
7025 | if (type == STT_OBJECT) |
7026 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_COMMON); | |
7027 | else | |
504b7d20 | 7028 | #endif |
c91e322a | 7029 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); |
0a40daed | 7030 | } |
079e9a2f AM |
7031 | else if (bfd_is_und_section (syms[idx]->section)) |
7032 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
7033 | ? STB_WEAK | |
7034 | : STB_GLOBAL), | |
7035 | type); | |
7036 | else if (flags & BSF_FILE) | |
7037 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
7038 | else | |
7039 | { | |
7040 | int bind = STB_LOCAL; | |
252b5132 | 7041 | |
079e9a2f AM |
7042 | if (flags & BSF_LOCAL) |
7043 | bind = STB_LOCAL; | |
3e7a7d11 NC |
7044 | else if (flags & BSF_GNU_UNIQUE) |
7045 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
7046 | else if (flags & BSF_WEAK) |
7047 | bind = STB_WEAK; | |
7048 | else if (flags & BSF_GLOBAL) | |
7049 | bind = STB_GLOBAL; | |
252b5132 | 7050 | |
079e9a2f AM |
7051 | sym.st_info = ELF_ST_INFO (bind, type); |
7052 | } | |
252b5132 | 7053 | |
079e9a2f | 7054 | if (type_ptr != NULL) |
35fc36a8 RS |
7055 | { |
7056 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
7057 | sym.st_target_internal | |
7058 | = type_ptr->internal_elf_sym.st_target_internal; | |
7059 | } | |
079e9a2f | 7060 | else |
35fc36a8 RS |
7061 | { |
7062 | sym.st_other = 0; | |
7063 | sym.st_target_internal = 0; | |
7064 | } | |
252b5132 | 7065 | |
9ad5cbcf | 7066 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 7067 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
7068 | if (outbound_shndx != NULL) |
7069 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 7070 | } |
252b5132 | 7071 | |
079e9a2f AM |
7072 | *sttp = stt; |
7073 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |
7074 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
252b5132 | 7075 | |
079e9a2f AM |
7076 | symstrtab_hdr->sh_flags = 0; |
7077 | symstrtab_hdr->sh_addr = 0; | |
7078 | symstrtab_hdr->sh_entsize = 0; | |
7079 | symstrtab_hdr->sh_link = 0; | |
7080 | symstrtab_hdr->sh_info = 0; | |
7081 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 7082 | |
b34976b6 | 7083 | return TRUE; |
252b5132 RH |
7084 | } |
7085 | ||
7086 | /* Return the number of bytes required to hold the symtab vector. | |
7087 | ||
7088 | Note that we base it on the count plus 1, since we will null terminate | |
7089 | the vector allocated based on this size. However, the ELF symbol table | |
7090 | always has a dummy entry as symbol #0, so it ends up even. */ | |
7091 | ||
7092 | long | |
217aa764 | 7093 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
7094 | { |
7095 | long symcount; | |
7096 | long symtab_size; | |
7097 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
7098 | ||
7099 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
7100 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
7101 | if (symcount > 0) | |
7102 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
7103 | |
7104 | return symtab_size; | |
7105 | } | |
7106 | ||
7107 | long | |
217aa764 | 7108 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
7109 | { |
7110 | long symcount; | |
7111 | long symtab_size; | |
7112 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
7113 | ||
7114 | if (elf_dynsymtab (abfd) == 0) | |
7115 | { | |
7116 | bfd_set_error (bfd_error_invalid_operation); | |
7117 | return -1; | |
7118 | } | |
7119 | ||
7120 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
7121 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
7122 | if (symcount > 0) | |
7123 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
7124 | |
7125 | return symtab_size; | |
7126 | } | |
7127 | ||
7128 | long | |
217aa764 AM |
7129 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
7130 | sec_ptr asect) | |
252b5132 RH |
7131 | { |
7132 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
7133 | } | |
7134 | ||
7135 | /* Canonicalize the relocs. */ | |
7136 | ||
7137 | long | |
217aa764 AM |
7138 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
7139 | sec_ptr section, | |
7140 | arelent **relptr, | |
7141 | asymbol **symbols) | |
252b5132 RH |
7142 | { |
7143 | arelent *tblptr; | |
7144 | unsigned int i; | |
9c5bfbb7 | 7145 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 7146 | |
b34976b6 | 7147 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
7148 | return -1; |
7149 | ||
7150 | tblptr = section->relocation; | |
7151 | for (i = 0; i < section->reloc_count; i++) | |
7152 | *relptr++ = tblptr++; | |
7153 | ||
7154 | *relptr = NULL; | |
7155 | ||
7156 | return section->reloc_count; | |
7157 | } | |
7158 | ||
7159 | long | |
6cee3f79 | 7160 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 7161 | { |
9c5bfbb7 | 7162 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7163 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
7164 | |
7165 | if (symcount >= 0) | |
7166 | bfd_get_symcount (abfd) = symcount; | |
7167 | return symcount; | |
7168 | } | |
7169 | ||
7170 | long | |
217aa764 AM |
7171 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
7172 | asymbol **allocation) | |
252b5132 | 7173 | { |
9c5bfbb7 | 7174 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7175 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
7176 | |
7177 | if (symcount >= 0) | |
7178 | bfd_get_dynamic_symcount (abfd) = symcount; | |
7179 | return symcount; | |
252b5132 RH |
7180 | } |
7181 | ||
8615f3f2 AM |
7182 | /* Return the size required for the dynamic reloc entries. Any loadable |
7183 | section that was actually installed in the BFD, and has type SHT_REL | |
7184 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
7185 | dynamic reloc section. */ | |
252b5132 RH |
7186 | |
7187 | long | |
217aa764 | 7188 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
7189 | { |
7190 | long ret; | |
7191 | asection *s; | |
7192 | ||
7193 | if (elf_dynsymtab (abfd) == 0) | |
7194 | { | |
7195 | bfd_set_error (bfd_error_invalid_operation); | |
7196 | return -1; | |
7197 | } | |
7198 | ||
7199 | ret = sizeof (arelent *); | |
7200 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 7201 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7202 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7203 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 7204 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
7205 | * sizeof (arelent *)); |
7206 | ||
7207 | return ret; | |
7208 | } | |
7209 | ||
8615f3f2 AM |
7210 | /* Canonicalize the dynamic relocation entries. Note that we return the |
7211 | dynamic relocations as a single block, although they are actually | |
7212 | associated with particular sections; the interface, which was | |
7213 | designed for SunOS style shared libraries, expects that there is only | |
7214 | one set of dynamic relocs. Any loadable section that was actually | |
7215 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
7216 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
7217 | |
7218 | long | |
217aa764 AM |
7219 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
7220 | arelent **storage, | |
7221 | asymbol **syms) | |
252b5132 | 7222 | { |
217aa764 | 7223 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
7224 | asection *s; |
7225 | long ret; | |
7226 | ||
7227 | if (elf_dynsymtab (abfd) == 0) | |
7228 | { | |
7229 | bfd_set_error (bfd_error_invalid_operation); | |
7230 | return -1; | |
7231 | } | |
7232 | ||
7233 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
7234 | ret = 0; | |
7235 | for (s = abfd->sections; s != NULL; s = s->next) | |
7236 | { | |
266b05cf | 7237 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7238 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7239 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
7240 | { | |
7241 | arelent *p; | |
7242 | long count, i; | |
7243 | ||
b34976b6 | 7244 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 7245 | return -1; |
eea6121a | 7246 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
7247 | p = s->relocation; |
7248 | for (i = 0; i < count; i++) | |
7249 | *storage++ = p++; | |
7250 | ret += count; | |
7251 | } | |
7252 | } | |
7253 | ||
7254 | *storage = NULL; | |
7255 | ||
7256 | return ret; | |
7257 | } | |
7258 | \f | |
7259 | /* Read in the version information. */ | |
7260 | ||
b34976b6 | 7261 | bfd_boolean |
fc0e6df6 | 7262 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
7263 | { |
7264 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
7265 | unsigned int freeidx = 0; |
7266 | ||
7267 | if (elf_dynverref (abfd) != 0) | |
7268 | { | |
7269 | Elf_Internal_Shdr *hdr; | |
7270 | Elf_External_Verneed *everneed; | |
7271 | Elf_Internal_Verneed *iverneed; | |
7272 | unsigned int i; | |
d0fb9a8d | 7273 | bfd_byte *contents_end; |
fc0e6df6 PB |
7274 | |
7275 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
7276 | ||
a50b1753 NC |
7277 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
7278 | bfd_zalloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); | |
fc0e6df6 PB |
7279 | if (elf_tdata (abfd)->verref == NULL) |
7280 | goto error_return; | |
7281 | ||
7282 | elf_tdata (abfd)->cverrefs = hdr->sh_info; | |
7283 | ||
a50b1753 | 7284 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
fc0e6df6 | 7285 | if (contents == NULL) |
d0fb9a8d JJ |
7286 | { |
7287 | error_return_verref: | |
7288 | elf_tdata (abfd)->verref = NULL; | |
7289 | elf_tdata (abfd)->cverrefs = 0; | |
7290 | goto error_return; | |
7291 | } | |
fc0e6df6 PB |
7292 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
7293 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 7294 | goto error_return_verref; |
fc0e6df6 | 7295 | |
d0fb9a8d JJ |
7296 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verneed)) |
7297 | goto error_return_verref; | |
7298 | ||
7299 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
7300 | == sizeof (Elf_External_Vernaux)); | |
7301 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
7302 | everneed = (Elf_External_Verneed *) contents; |
7303 | iverneed = elf_tdata (abfd)->verref; | |
7304 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
7305 | { | |
7306 | Elf_External_Vernaux *evernaux; | |
7307 | Elf_Internal_Vernaux *ivernaux; | |
7308 | unsigned int j; | |
7309 | ||
7310 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
7311 | ||
7312 | iverneed->vn_bfd = abfd; | |
7313 | ||
7314 | iverneed->vn_filename = | |
7315 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7316 | iverneed->vn_file); | |
7317 | if (iverneed->vn_filename == NULL) | |
d0fb9a8d | 7318 | goto error_return_verref; |
fc0e6df6 | 7319 | |
d0fb9a8d JJ |
7320 | if (iverneed->vn_cnt == 0) |
7321 | iverneed->vn_auxptr = NULL; | |
7322 | else | |
7323 | { | |
a50b1753 NC |
7324 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
7325 | bfd_alloc2 (abfd, iverneed->vn_cnt, | |
7326 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
7327 | if (iverneed->vn_auxptr == NULL) |
7328 | goto error_return_verref; | |
7329 | } | |
7330 | ||
7331 | if (iverneed->vn_aux | |
7332 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7333 | goto error_return_verref; | |
fc0e6df6 PB |
7334 | |
7335 | evernaux = ((Elf_External_Vernaux *) | |
7336 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
7337 | ivernaux = iverneed->vn_auxptr; | |
7338 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
7339 | { | |
7340 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
7341 | ||
7342 | ivernaux->vna_nodename = | |
7343 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7344 | ivernaux->vna_name); | |
7345 | if (ivernaux->vna_nodename == NULL) | |
d0fb9a8d | 7346 | goto error_return_verref; |
fc0e6df6 PB |
7347 | |
7348 | if (j + 1 < iverneed->vn_cnt) | |
7349 | ivernaux->vna_nextptr = ivernaux + 1; | |
7350 | else | |
7351 | ivernaux->vna_nextptr = NULL; | |
7352 | ||
d0fb9a8d JJ |
7353 | if (ivernaux->vna_next |
7354 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
7355 | goto error_return_verref; | |
7356 | ||
fc0e6df6 PB |
7357 | evernaux = ((Elf_External_Vernaux *) |
7358 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
7359 | ||
7360 | if (ivernaux->vna_other > freeidx) | |
7361 | freeidx = ivernaux->vna_other; | |
7362 | } | |
7363 | ||
7364 | if (i + 1 < hdr->sh_info) | |
7365 | iverneed->vn_nextref = iverneed + 1; | |
7366 | else | |
7367 | iverneed->vn_nextref = NULL; | |
7368 | ||
d0fb9a8d JJ |
7369 | if (iverneed->vn_next |
7370 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7371 | goto error_return_verref; | |
7372 | ||
fc0e6df6 PB |
7373 | everneed = ((Elf_External_Verneed *) |
7374 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
7375 | } | |
7376 | ||
7377 | free (contents); | |
7378 | contents = NULL; | |
7379 | } | |
252b5132 RH |
7380 | |
7381 | if (elf_dynverdef (abfd) != 0) | |
7382 | { | |
7383 | Elf_Internal_Shdr *hdr; | |
7384 | Elf_External_Verdef *everdef; | |
7385 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
7386 | Elf_Internal_Verdef *iverdefarr; |
7387 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 7388 | unsigned int i; |
062e2358 | 7389 | unsigned int maxidx; |
d0fb9a8d | 7390 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
7391 | |
7392 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
7393 | ||
a50b1753 | 7394 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 RH |
7395 | if (contents == NULL) |
7396 | goto error_return; | |
7397 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
217aa764 | 7398 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
7399 | goto error_return; |
7400 | ||
d0fb9a8d JJ |
7401 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verdef)) |
7402 | goto error_return; | |
7403 | ||
7404 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
7405 | >= sizeof (Elf_External_Verdaux)); | |
7406 | contents_end_def = contents + hdr->sh_size | |
7407 | - sizeof (Elf_External_Verdef); | |
7408 | contents_end_aux = contents + hdr->sh_size | |
7409 | - sizeof (Elf_External_Verdaux); | |
7410 | ||
f631889e UD |
7411 | /* We know the number of entries in the section but not the maximum |
7412 | index. Therefore we have to run through all entries and find | |
7413 | the maximum. */ | |
252b5132 | 7414 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
7415 | maxidx = 0; |
7416 | for (i = 0; i < hdr->sh_info; ++i) | |
7417 | { | |
7418 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
7419 | ||
062e2358 AM |
7420 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
7421 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 7422 | |
d0fb9a8d JJ |
7423 | if (iverdefmem.vd_next |
7424 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
7425 | goto error_return; | |
7426 | ||
f631889e UD |
7427 | everdef = ((Elf_External_Verdef *) |
7428 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
7429 | } | |
7430 | ||
fc0e6df6 PB |
7431 | if (default_imported_symver) |
7432 | { | |
7433 | if (freeidx > maxidx) | |
7434 | maxidx = ++freeidx; | |
7435 | else | |
7436 | freeidx = ++maxidx; | |
7437 | } | |
a50b1753 NC |
7438 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7439 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e UD |
7440 | if (elf_tdata (abfd)->verdef == NULL) |
7441 | goto error_return; | |
7442 | ||
7443 | elf_tdata (abfd)->cverdefs = maxidx; | |
7444 | ||
7445 | everdef = (Elf_External_Verdef *) contents; | |
7446 | iverdefarr = elf_tdata (abfd)->verdef; | |
7447 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
7448 | { |
7449 | Elf_External_Verdaux *everdaux; | |
7450 | Elf_Internal_Verdaux *iverdaux; | |
7451 | unsigned int j; | |
7452 | ||
f631889e UD |
7453 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
7454 | ||
d0fb9a8d JJ |
7455 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
7456 | { | |
7457 | error_return_verdef: | |
7458 | elf_tdata (abfd)->verdef = NULL; | |
7459 | elf_tdata (abfd)->cverdefs = 0; | |
7460 | goto error_return; | |
7461 | } | |
7462 | ||
f631889e UD |
7463 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
7464 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
7465 | |
7466 | iverdef->vd_bfd = abfd; | |
7467 | ||
d0fb9a8d JJ |
7468 | if (iverdef->vd_cnt == 0) |
7469 | iverdef->vd_auxptr = NULL; | |
7470 | else | |
7471 | { | |
a50b1753 NC |
7472 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7473 | bfd_alloc2 (abfd, iverdef->vd_cnt, | |
7474 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7475 | if (iverdef->vd_auxptr == NULL) |
7476 | goto error_return_verdef; | |
7477 | } | |
7478 | ||
7479 | if (iverdef->vd_aux | |
7480 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
7481 | goto error_return_verdef; | |
252b5132 RH |
7482 | |
7483 | everdaux = ((Elf_External_Verdaux *) | |
7484 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
7485 | iverdaux = iverdef->vd_auxptr; | |
7486 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
7487 | { | |
7488 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
7489 | ||
7490 | iverdaux->vda_nodename = | |
7491 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7492 | iverdaux->vda_name); | |
7493 | if (iverdaux->vda_nodename == NULL) | |
d0fb9a8d | 7494 | goto error_return_verdef; |
252b5132 RH |
7495 | |
7496 | if (j + 1 < iverdef->vd_cnt) | |
7497 | iverdaux->vda_nextptr = iverdaux + 1; | |
7498 | else | |
7499 | iverdaux->vda_nextptr = NULL; | |
7500 | ||
d0fb9a8d JJ |
7501 | if (iverdaux->vda_next |
7502 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
7503 | goto error_return_verdef; | |
7504 | ||
252b5132 RH |
7505 | everdaux = ((Elf_External_Verdaux *) |
7506 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
7507 | } | |
7508 | ||
d0fb9a8d JJ |
7509 | if (iverdef->vd_cnt) |
7510 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 7511 | |
d0fb9a8d | 7512 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 RH |
7513 | iverdef->vd_nextdef = iverdef + 1; |
7514 | else | |
7515 | iverdef->vd_nextdef = NULL; | |
7516 | ||
7517 | everdef = ((Elf_External_Verdef *) | |
7518 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
7519 | } | |
7520 | ||
7521 | free (contents); | |
7522 | contents = NULL; | |
7523 | } | |
fc0e6df6 | 7524 | else if (default_imported_symver) |
252b5132 | 7525 | { |
fc0e6df6 PB |
7526 | if (freeidx < 3) |
7527 | freeidx = 3; | |
7528 | else | |
7529 | freeidx++; | |
252b5132 | 7530 | |
a50b1753 NC |
7531 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7532 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); | |
fc0e6df6 | 7533 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
7534 | goto error_return; |
7535 | ||
fc0e6df6 PB |
7536 | elf_tdata (abfd)->cverdefs = freeidx; |
7537 | } | |
252b5132 | 7538 | |
fc0e6df6 PB |
7539 | /* Create a default version based on the soname. */ |
7540 | if (default_imported_symver) | |
7541 | { | |
7542 | Elf_Internal_Verdef *iverdef; | |
7543 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 7544 | |
5bb3703f | 7545 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 7546 | |
fc0e6df6 PB |
7547 | iverdef->vd_version = VER_DEF_CURRENT; |
7548 | iverdef->vd_flags = 0; | |
7549 | iverdef->vd_ndx = freeidx; | |
7550 | iverdef->vd_cnt = 1; | |
252b5132 | 7551 | |
fc0e6df6 | 7552 | iverdef->vd_bfd = abfd; |
252b5132 | 7553 | |
fc0e6df6 PB |
7554 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
7555 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 7556 | goto error_return_verdef; |
fc0e6df6 | 7557 | iverdef->vd_nextdef = NULL; |
a50b1753 NC |
7558 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7559 | bfd_alloc (abfd, sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7560 | if (iverdef->vd_auxptr == NULL) |
7561 | goto error_return_verdef; | |
252b5132 | 7562 | |
fc0e6df6 PB |
7563 | iverdaux = iverdef->vd_auxptr; |
7564 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
7565 | iverdaux->vda_nextptr = NULL; | |
252b5132 RH |
7566 | } |
7567 | ||
b34976b6 | 7568 | return TRUE; |
252b5132 RH |
7569 | |
7570 | error_return: | |
5ed6aba4 | 7571 | if (contents != NULL) |
252b5132 | 7572 | free (contents); |
b34976b6 | 7573 | return FALSE; |
252b5132 RH |
7574 | } |
7575 | \f | |
7576 | asymbol * | |
217aa764 | 7577 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
7578 | { |
7579 | elf_symbol_type *newsym; | |
dc810e39 | 7580 | bfd_size_type amt = sizeof (elf_symbol_type); |
252b5132 | 7581 | |
a50b1753 | 7582 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
7583 | if (!newsym) |
7584 | return NULL; | |
7585 | else | |
7586 | { | |
7587 | newsym->symbol.the_bfd = abfd; | |
7588 | return &newsym->symbol; | |
7589 | } | |
7590 | } | |
7591 | ||
7592 | void | |
217aa764 AM |
7593 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
7594 | asymbol *symbol, | |
7595 | symbol_info *ret) | |
252b5132 RH |
7596 | { |
7597 | bfd_symbol_info (symbol, ret); | |
7598 | } | |
7599 | ||
7600 | /* Return whether a symbol name implies a local symbol. Most targets | |
7601 | use this function for the is_local_label_name entry point, but some | |
7602 | override it. */ | |
7603 | ||
b34976b6 | 7604 | bfd_boolean |
217aa764 AM |
7605 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
7606 | const char *name) | |
252b5132 RH |
7607 | { |
7608 | /* Normal local symbols start with ``.L''. */ | |
7609 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 7610 | return TRUE; |
252b5132 RH |
7611 | |
7612 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
7613 | DWARF debugging symbols starting with ``..''. */ | |
7614 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 7615 | return TRUE; |
252b5132 RH |
7616 | |
7617 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
7618 | emitting DWARF debugging output. I suspect this is actually a | |
7619 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
7620 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
7621 | underscore to be emitted on some ELF targets). For ease of use, | |
7622 | we treat such symbols as local. */ | |
7623 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 7624 | return TRUE; |
252b5132 | 7625 | |
b34976b6 | 7626 | return FALSE; |
252b5132 RH |
7627 | } |
7628 | ||
7629 | alent * | |
217aa764 AM |
7630 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
7631 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
7632 | { |
7633 | abort (); | |
7634 | return NULL; | |
7635 | } | |
7636 | ||
b34976b6 | 7637 | bfd_boolean |
217aa764 AM |
7638 | _bfd_elf_set_arch_mach (bfd *abfd, |
7639 | enum bfd_architecture arch, | |
7640 | unsigned long machine) | |
252b5132 RH |
7641 | { |
7642 | /* If this isn't the right architecture for this backend, and this | |
7643 | isn't the generic backend, fail. */ | |
7644 | if (arch != get_elf_backend_data (abfd)->arch | |
7645 | && arch != bfd_arch_unknown | |
7646 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 7647 | return FALSE; |
252b5132 RH |
7648 | |
7649 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
7650 | } | |
7651 | ||
d1fad7c6 NC |
7652 | /* Find the function to a particular section and offset, |
7653 | for error reporting. */ | |
252b5132 | 7654 | |
b34976b6 | 7655 | static bfd_boolean |
b9d678e0 | 7656 | elf_find_function (bfd *abfd, |
217aa764 | 7657 | asymbol **symbols, |
fb167eb2 | 7658 | asection *section, |
217aa764 AM |
7659 | bfd_vma offset, |
7660 | const char **filename_ptr, | |
7661 | const char **functionname_ptr) | |
252b5132 | 7662 | { |
619a703e AM |
7663 | struct elf_find_function_cache |
7664 | { | |
7665 | asection *last_section; | |
7666 | asymbol *func; | |
7667 | const char *filename; | |
7668 | bfd_size_type func_size; | |
7669 | } *cache; | |
252b5132 | 7670 | |
a06c7d5a NC |
7671 | if (symbols == NULL) |
7672 | return FALSE; | |
7673 | ||
619a703e AM |
7674 | cache = elf_tdata (abfd)->elf_find_function_cache; |
7675 | if (cache == NULL) | |
7676 | { | |
7677 | cache = bfd_zalloc (abfd, sizeof (*cache)); | |
7678 | elf_tdata (abfd)->elf_find_function_cache = cache; | |
7679 | if (cache == NULL) | |
7680 | return FALSE; | |
7681 | } | |
7682 | if (cache->last_section != section | |
7683 | || cache->func == NULL | |
7684 | || offset < cache->func->value | |
7685 | || offset >= cache->func->value + cache->func_size) | |
aef36ac1 AM |
7686 | { |
7687 | asymbol *file; | |
7688 | bfd_vma low_func; | |
7689 | asymbol **p; | |
7690 | /* ??? Given multiple file symbols, it is impossible to reliably | |
7691 | choose the right file name for global symbols. File symbols are | |
7692 | local symbols, and thus all file symbols must sort before any | |
7693 | global symbols. The ELF spec may be interpreted to say that a | |
7694 | file symbol must sort before other local symbols, but currently | |
7695 | ld -r doesn't do this. So, for ld -r output, it is possible to | |
7696 | make a better choice of file name for local symbols by ignoring | |
7697 | file symbols appearing after a given local symbol. */ | |
7698 | enum { nothing_seen, symbol_seen, file_after_symbol_seen } state; | |
7699 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7700 | ||
aef36ac1 AM |
7701 | file = NULL; |
7702 | low_func = 0; | |
7703 | state = nothing_seen; | |
619a703e AM |
7704 | cache->filename = NULL; |
7705 | cache->func = NULL; | |
7706 | cache->func_size = 0; | |
7707 | cache->last_section = section; | |
aef36ac1 AM |
7708 | |
7709 | for (p = symbols; *p != NULL; p++) | |
7710 | { | |
7711 | asymbol *sym = *p; | |
7712 | bfd_vma code_off; | |
7713 | bfd_size_type size; | |
7714 | ||
7715 | if ((sym->flags & BSF_FILE) != 0) | |
7716 | { | |
7717 | file = sym; | |
7718 | if (state == symbol_seen) | |
7719 | state = file_after_symbol_seen; | |
7720 | continue; | |
7721 | } | |
ff9e0f5b | 7722 | |
aef36ac1 AM |
7723 | size = bed->maybe_function_sym (sym, section, &code_off); |
7724 | if (size != 0 | |
7725 | && code_off <= offset | |
7726 | && (code_off > low_func | |
7727 | || (code_off == low_func | |
619a703e | 7728 | && size > cache->func_size))) |
aef36ac1 | 7729 | { |
619a703e AM |
7730 | cache->func = sym; |
7731 | cache->func_size = size; | |
7732 | cache->filename = NULL; | |
aef36ac1 | 7733 | low_func = code_off; |
aef36ac1 AM |
7734 | if (file != NULL |
7735 | && ((sym->flags & BSF_LOCAL) != 0 | |
7736 | || state != file_after_symbol_seen)) | |
619a703e | 7737 | cache->filename = bfd_asymbol_name (file); |
aef36ac1 AM |
7738 | } |
7739 | if (state == nothing_seen) | |
7740 | state = symbol_seen; | |
252b5132 RH |
7741 | } |
7742 | } | |
7743 | ||
619a703e | 7744 | if (cache->func == NULL) |
b34976b6 | 7745 | return FALSE; |
252b5132 | 7746 | |
d1fad7c6 | 7747 | if (filename_ptr) |
619a703e | 7748 | *filename_ptr = cache->filename; |
d1fad7c6 | 7749 | if (functionname_ptr) |
619a703e | 7750 | *functionname_ptr = bfd_asymbol_name (cache->func); |
d1fad7c6 | 7751 | |
b34976b6 | 7752 | return TRUE; |
d1fad7c6 NC |
7753 | } |
7754 | ||
7755 | /* Find the nearest line to a particular section and offset, | |
7756 | for error reporting. */ | |
7757 | ||
b34976b6 | 7758 | bfd_boolean |
217aa764 | 7759 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 7760 | asymbol **symbols, |
fb167eb2 | 7761 | asection *section, |
217aa764 AM |
7762 | bfd_vma offset, |
7763 | const char **filename_ptr, | |
7764 | const char **functionname_ptr, | |
fb167eb2 AM |
7765 | unsigned int *line_ptr, |
7766 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 7767 | { |
b34976b6 | 7768 | bfd_boolean found; |
d1fad7c6 | 7769 | |
fb167eb2 | 7770 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 7771 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
7772 | line_ptr, discriminator_ptr, |
7773 | dwarf_debug_sections, 0, | |
7774 | &elf_tdata (abfd)->dwarf2_find_line_info)) | |
d1fad7c6 NC |
7775 | { |
7776 | if (!*functionname_ptr) | |
fb167eb2 | 7777 | elf_find_function (abfd, symbols, section, offset, |
4e8a9624 AM |
7778 | *filename_ptr ? NULL : filename_ptr, |
7779 | functionname_ptr); | |
7780 | ||
b34976b6 | 7781 | return TRUE; |
d1fad7c6 NC |
7782 | } |
7783 | ||
fb167eb2 AM |
7784 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, |
7785 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
7786 | { |
7787 | if (!*functionname_ptr) | |
fb167eb2 | 7788 | elf_find_function (abfd, symbols, section, offset, |
4e8a9624 AM |
7789 | *filename_ptr ? NULL : filename_ptr, |
7790 | functionname_ptr); | |
7791 | ||
b34976b6 | 7792 | return TRUE; |
d1fad7c6 NC |
7793 | } |
7794 | ||
7795 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
7796 | &found, filename_ptr, |
7797 | functionname_ptr, line_ptr, | |
7798 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 7799 | return FALSE; |
dc43ada5 | 7800 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 7801 | return TRUE; |
d1fad7c6 NC |
7802 | |
7803 | if (symbols == NULL) | |
b34976b6 | 7804 | return FALSE; |
d1fad7c6 | 7805 | |
fb167eb2 | 7806 | if (! elf_find_function (abfd, symbols, section, offset, |
4e8a9624 | 7807 | filename_ptr, functionname_ptr)) |
b34976b6 | 7808 | return FALSE; |
d1fad7c6 | 7809 | |
252b5132 | 7810 | *line_ptr = 0; |
b34976b6 | 7811 | return TRUE; |
252b5132 RH |
7812 | } |
7813 | ||
5420f73d L |
7814 | /* Find the line for a symbol. */ |
7815 | ||
7816 | bfd_boolean | |
7817 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7818 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 7819 | { |
fb167eb2 AM |
7820 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
7821 | filename_ptr, NULL, line_ptr, NULL, | |
7822 | dwarf_debug_sections, 0, | |
7823 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
7824 | } |
7825 | ||
4ab527b0 FF |
7826 | /* After a call to bfd_find_nearest_line, successive calls to |
7827 | bfd_find_inliner_info can be used to get source information about | |
7828 | each level of function inlining that terminated at the address | |
7829 | passed to bfd_find_nearest_line. Currently this is only supported | |
7830 | for DWARF2 with appropriate DWARF3 extensions. */ | |
7831 | ||
7832 | bfd_boolean | |
7833 | _bfd_elf_find_inliner_info (bfd *abfd, | |
7834 | const char **filename_ptr, | |
7835 | const char **functionname_ptr, | |
7836 | unsigned int *line_ptr) | |
7837 | { | |
7838 | bfd_boolean found; | |
7839 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
7840 | functionname_ptr, line_ptr, | |
7841 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
7842 | return found; | |
7843 | } | |
7844 | ||
252b5132 | 7845 | int |
a6b96beb | 7846 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 7847 | { |
8ded5a0f AM |
7848 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7849 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 7850 | |
a6b96beb | 7851 | if (!info->relocatable) |
8ded5a0f | 7852 | { |
12bd6957 | 7853 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 7854 | |
62d7a5f6 AM |
7855 | if (phdr_size == (bfd_size_type) -1) |
7856 | { | |
7857 | struct elf_segment_map *m; | |
7858 | ||
7859 | phdr_size = 0; | |
12bd6957 | 7860 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 7861 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 7862 | |
62d7a5f6 AM |
7863 | if (phdr_size == 0) |
7864 | phdr_size = get_program_header_size (abfd, info); | |
7865 | } | |
8ded5a0f | 7866 | |
12bd6957 | 7867 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
7868 | ret += phdr_size; |
7869 | } | |
7870 | ||
252b5132 RH |
7871 | return ret; |
7872 | } | |
7873 | ||
b34976b6 | 7874 | bfd_boolean |
217aa764 AM |
7875 | _bfd_elf_set_section_contents (bfd *abfd, |
7876 | sec_ptr section, | |
0f867abe | 7877 | const void *location, |
217aa764 AM |
7878 | file_ptr offset, |
7879 | bfd_size_type count) | |
252b5132 RH |
7880 | { |
7881 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 7882 | file_ptr pos; |
252b5132 RH |
7883 | |
7884 | if (! abfd->output_has_begun | |
217aa764 | 7885 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 7886 | return FALSE; |
252b5132 RH |
7887 | |
7888 | hdr = &elf_section_data (section)->this_hdr; | |
dc810e39 AM |
7889 | pos = hdr->sh_offset + offset; |
7890 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
7891 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 7892 | return FALSE; |
252b5132 | 7893 | |
b34976b6 | 7894 | return TRUE; |
252b5132 RH |
7895 | } |
7896 | ||
7897 | void | |
217aa764 AM |
7898 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
7899 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
7900 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
7901 | { |
7902 | abort (); | |
7903 | } | |
7904 | ||
252b5132 RH |
7905 | /* Try to convert a non-ELF reloc into an ELF one. */ |
7906 | ||
b34976b6 | 7907 | bfd_boolean |
217aa764 | 7908 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 7909 | { |
c044fabd | 7910 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
7911 | |
7912 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
7913 | { | |
7914 | bfd_reloc_code_real_type code; | |
7915 | reloc_howto_type *howto; | |
7916 | ||
7917 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 7918 | equivalent ELF reloc. */ |
252b5132 RH |
7919 | |
7920 | if (areloc->howto->pc_relative) | |
7921 | { | |
7922 | switch (areloc->howto->bitsize) | |
7923 | { | |
7924 | case 8: | |
7925 | code = BFD_RELOC_8_PCREL; | |
7926 | break; | |
7927 | case 12: | |
7928 | code = BFD_RELOC_12_PCREL; | |
7929 | break; | |
7930 | case 16: | |
7931 | code = BFD_RELOC_16_PCREL; | |
7932 | break; | |
7933 | case 24: | |
7934 | code = BFD_RELOC_24_PCREL; | |
7935 | break; | |
7936 | case 32: | |
7937 | code = BFD_RELOC_32_PCREL; | |
7938 | break; | |
7939 | case 64: | |
7940 | code = BFD_RELOC_64_PCREL; | |
7941 | break; | |
7942 | default: | |
7943 | goto fail; | |
7944 | } | |
7945 | ||
7946 | howto = bfd_reloc_type_lookup (abfd, code); | |
7947 | ||
7948 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
7949 | { | |
7950 | if (howto->pcrel_offset) | |
7951 | areloc->addend += areloc->address; | |
7952 | else | |
7953 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
7954 | } | |
7955 | } | |
7956 | else | |
7957 | { | |
7958 | switch (areloc->howto->bitsize) | |
7959 | { | |
7960 | case 8: | |
7961 | code = BFD_RELOC_8; | |
7962 | break; | |
7963 | case 14: | |
7964 | code = BFD_RELOC_14; | |
7965 | break; | |
7966 | case 16: | |
7967 | code = BFD_RELOC_16; | |
7968 | break; | |
7969 | case 26: | |
7970 | code = BFD_RELOC_26; | |
7971 | break; | |
7972 | case 32: | |
7973 | code = BFD_RELOC_32; | |
7974 | break; | |
7975 | case 64: | |
7976 | code = BFD_RELOC_64; | |
7977 | break; | |
7978 | default: | |
7979 | goto fail; | |
7980 | } | |
7981 | ||
7982 | howto = bfd_reloc_type_lookup (abfd, code); | |
7983 | } | |
7984 | ||
7985 | if (howto) | |
7986 | areloc->howto = howto; | |
7987 | else | |
7988 | goto fail; | |
7989 | } | |
7990 | ||
b34976b6 | 7991 | return TRUE; |
252b5132 RH |
7992 | |
7993 | fail: | |
7994 | (*_bfd_error_handler) | |
d003868e AM |
7995 | (_("%B: unsupported relocation type %s"), |
7996 | abfd, areloc->howto->name); | |
252b5132 | 7997 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7998 | return FALSE; |
252b5132 RH |
7999 | } |
8000 | ||
b34976b6 | 8001 | bfd_boolean |
217aa764 | 8002 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 8003 | { |
d9071b0c TG |
8004 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
8005 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 8006 | { |
c0355132 | 8007 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 8008 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 8009 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
8010 | } |
8011 | ||
8012 | return _bfd_generic_close_and_cleanup (abfd); | |
8013 | } | |
8014 | ||
8015 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
8016 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
8017 | range-checking to interfere. There is nothing else to do in processing | |
8018 | this reloc. */ | |
8019 | ||
8020 | bfd_reloc_status_type | |
217aa764 AM |
8021 | _bfd_elf_rel_vtable_reloc_fn |
8022 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 8023 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
8024 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
8025 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
8026 | { |
8027 | return bfd_reloc_ok; | |
8028 | } | |
252b5132 RH |
8029 | \f |
8030 | /* Elf core file support. Much of this only works on native | |
8031 | toolchains, since we rely on knowing the | |
8032 | machine-dependent procfs structure in order to pick | |
c044fabd | 8033 | out details about the corefile. */ |
252b5132 RH |
8034 | |
8035 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
8036 | /* Needed for new procfs interface on sparc-solaris. */ |
8037 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
8038 | # include <sys/procfs.h> |
8039 | #endif | |
8040 | ||
261b8d08 PA |
8041 | /* Return a PID that identifies a "thread" for threaded cores, or the |
8042 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
8043 | |
8044 | static int | |
217aa764 | 8045 | elfcore_make_pid (bfd *abfd) |
252b5132 | 8046 | { |
261b8d08 PA |
8047 | int pid; |
8048 | ||
228e534f | 8049 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 8050 | if (pid == 0) |
228e534f | 8051 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
8052 | |
8053 | return pid; | |
252b5132 RH |
8054 | } |
8055 | ||
252b5132 RH |
8056 | /* If there isn't a section called NAME, make one, using |
8057 | data from SECT. Note, this function will generate a | |
8058 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 8059 | overwrite it. */ |
252b5132 | 8060 | |
b34976b6 | 8061 | static bfd_boolean |
217aa764 | 8062 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 8063 | { |
c044fabd | 8064 | asection *sect2; |
252b5132 RH |
8065 | |
8066 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 8067 | return TRUE; |
252b5132 | 8068 | |
117ed4f8 | 8069 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 8070 | if (sect2 == NULL) |
b34976b6 | 8071 | return FALSE; |
252b5132 | 8072 | |
eea6121a | 8073 | sect2->size = sect->size; |
252b5132 | 8074 | sect2->filepos = sect->filepos; |
252b5132 | 8075 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 8076 | return TRUE; |
252b5132 RH |
8077 | } |
8078 | ||
bb0082d6 AM |
8079 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
8080 | actually creates up to two pseudosections: | |
8081 | - For the single-threaded case, a section named NAME, unless | |
8082 | such a section already exists. | |
8083 | - For the multi-threaded case, a section named "NAME/PID", where | |
8084 | PID is elfcore_make_pid (abfd). | |
8085 | Both pseudosections have identical contents. */ | |
b34976b6 | 8086 | bfd_boolean |
217aa764 AM |
8087 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
8088 | char *name, | |
8089 | size_t size, | |
8090 | ufile_ptr filepos) | |
bb0082d6 AM |
8091 | { |
8092 | char buf[100]; | |
8093 | char *threaded_name; | |
d4c88bbb | 8094 | size_t len; |
bb0082d6 AM |
8095 | asection *sect; |
8096 | ||
8097 | /* Build the section name. */ | |
8098 | ||
8099 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 8100 | len = strlen (buf) + 1; |
a50b1753 | 8101 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 8102 | if (threaded_name == NULL) |
b34976b6 | 8103 | return FALSE; |
d4c88bbb | 8104 | memcpy (threaded_name, buf, len); |
bb0082d6 | 8105 | |
117ed4f8 AM |
8106 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
8107 | SEC_HAS_CONTENTS); | |
bb0082d6 | 8108 | if (sect == NULL) |
b34976b6 | 8109 | return FALSE; |
eea6121a | 8110 | sect->size = size; |
bb0082d6 | 8111 | sect->filepos = filepos; |
bb0082d6 AM |
8112 | sect->alignment_power = 2; |
8113 | ||
936e320b | 8114 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
8115 | } |
8116 | ||
252b5132 | 8117 | /* prstatus_t exists on: |
4a938328 | 8118 | solaris 2.5+ |
252b5132 RH |
8119 | linux 2.[01] + glibc |
8120 | unixware 4.2 | |
8121 | */ | |
8122 | ||
8123 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 8124 | |
b34976b6 | 8125 | static bfd_boolean |
217aa764 | 8126 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8127 | { |
eea6121a | 8128 | size_t size; |
7ee38065 | 8129 | int offset; |
252b5132 | 8130 | |
4a938328 MS |
8131 | if (note->descsz == sizeof (prstatus_t)) |
8132 | { | |
8133 | prstatus_t prstat; | |
252b5132 | 8134 | |
eea6121a | 8135 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8136 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 8137 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 8138 | |
fa49d224 NC |
8139 | /* Do not overwrite the core signal if it |
8140 | has already been set by another thread. */ | |
228e534f AM |
8141 | if (elf_tdata (abfd)->core->signal == 0) |
8142 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
8143 | if (elf_tdata (abfd)->core->pid == 0) | |
8144 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 8145 | |
4a938328 MS |
8146 | /* pr_who exists on: |
8147 | solaris 2.5+ | |
8148 | unixware 4.2 | |
8149 | pr_who doesn't exist on: | |
8150 | linux 2.[01] | |
8151 | */ | |
252b5132 | 8152 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 8153 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 8154 | #else |
228e534f | 8155 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 8156 | #endif |
4a938328 | 8157 | } |
7ee38065 | 8158 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
8159 | else if (note->descsz == sizeof (prstatus32_t)) |
8160 | { | |
8161 | /* 64-bit host, 32-bit corefile */ | |
8162 | prstatus32_t prstat; | |
8163 | ||
eea6121a | 8164 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8165 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
8166 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
8167 | ||
fa49d224 NC |
8168 | /* Do not overwrite the core signal if it |
8169 | has already been set by another thread. */ | |
228e534f AM |
8170 | if (elf_tdata (abfd)->core->signal == 0) |
8171 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
8172 | if (elf_tdata (abfd)->core->pid == 0) | |
8173 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
8174 | |
8175 | /* pr_who exists on: | |
8176 | solaris 2.5+ | |
8177 | unixware 4.2 | |
8178 | pr_who doesn't exist on: | |
8179 | linux 2.[01] | |
8180 | */ | |
7ee38065 | 8181 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 8182 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 8183 | #else |
228e534f | 8184 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
8185 | #endif |
8186 | } | |
7ee38065 | 8187 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
8188 | else |
8189 | { | |
8190 | /* Fail - we don't know how to handle any other | |
8191 | note size (ie. data object type). */ | |
b34976b6 | 8192 | return TRUE; |
4a938328 | 8193 | } |
252b5132 | 8194 | |
bb0082d6 | 8195 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 8196 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 8197 | size, note->descpos + offset); |
252b5132 RH |
8198 | } |
8199 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
8200 | ||
bb0082d6 | 8201 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 8202 | static bfd_boolean |
217aa764 AM |
8203 | elfcore_make_note_pseudosection (bfd *abfd, |
8204 | char *name, | |
8205 | Elf_Internal_Note *note) | |
252b5132 | 8206 | { |
936e320b AM |
8207 | return _bfd_elfcore_make_pseudosection (abfd, name, |
8208 | note->descsz, note->descpos); | |
252b5132 RH |
8209 | } |
8210 | ||
ff08c6bb JB |
8211 | /* There isn't a consistent prfpregset_t across platforms, |
8212 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
8213 | data structure apart. */ |
8214 | ||
b34976b6 | 8215 | static bfd_boolean |
217aa764 | 8216 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8217 | { |
8218 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8219 | } | |
8220 | ||
ff08c6bb | 8221 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 8222 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 8223 | literally. */ |
c044fabd | 8224 | |
b34976b6 | 8225 | static bfd_boolean |
217aa764 | 8226 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8227 | { |
8228 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8229 | } | |
8230 | ||
4339cae0 L |
8231 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
8232 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
8233 | contents literally. */ | |
8234 | ||
8235 | static bfd_boolean | |
8236 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
8237 | { | |
8238 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
8239 | } | |
8240 | ||
97753bd5 AM |
8241 | static bfd_boolean |
8242 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
8243 | { | |
8244 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
8245 | } | |
8246 | ||
89eeb0bc LM |
8247 | static bfd_boolean |
8248 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
8249 | { | |
8250 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
8251 | } | |
97753bd5 | 8252 | |
0675e188 UW |
8253 | static bfd_boolean |
8254 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
8255 | { | |
8256 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
8257 | } | |
8258 | ||
d7eeb400 MS |
8259 | static bfd_boolean |
8260 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
8261 | { | |
8262 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
8263 | } | |
8264 | ||
8265 | static bfd_boolean | |
8266 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
8267 | { | |
8268 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
8269 | } | |
8270 | ||
8271 | static bfd_boolean | |
8272 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
8273 | { | |
8274 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
8275 | } | |
8276 | ||
8277 | static bfd_boolean | |
8278 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
8279 | { | |
8280 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
8281 | } | |
8282 | ||
8283 | static bfd_boolean | |
8284 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
8285 | { | |
8286 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
8287 | } | |
8288 | ||
355b81d9 UW |
8289 | static bfd_boolean |
8290 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
8291 | { | |
8292 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
8293 | } | |
8294 | ||
8295 | static bfd_boolean | |
8296 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
8297 | { | |
8298 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
8299 | } | |
8300 | ||
abb3f6cc NC |
8301 | static bfd_boolean |
8302 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
8303 | { | |
8304 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
8305 | } | |
8306 | ||
faa9a424 UW |
8307 | static bfd_boolean |
8308 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
8309 | { | |
8310 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
8311 | } | |
8312 | ||
652451f8 YZ |
8313 | static bfd_boolean |
8314 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
8315 | { | |
8316 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
8317 | } | |
8318 | ||
8319 | static bfd_boolean | |
8320 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
8321 | { | |
8322 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
8323 | } | |
8324 | ||
8325 | static bfd_boolean | |
8326 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
8327 | { | |
8328 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
8329 | } | |
8330 | ||
252b5132 | 8331 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 8332 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 8333 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8334 | typedef prpsinfo32_t elfcore_psinfo32_t; |
8335 | #endif | |
252b5132 RH |
8336 | #endif |
8337 | ||
8338 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 8339 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 8340 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8341 | typedef psinfo32_t elfcore_psinfo32_t; |
8342 | #endif | |
252b5132 RH |
8343 | #endif |
8344 | ||
252b5132 RH |
8345 | /* return a malloc'ed copy of a string at START which is at |
8346 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 8347 | the copy will always have a terminating '\0'. */ |
252b5132 | 8348 | |
936e320b | 8349 | char * |
217aa764 | 8350 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 8351 | { |
dc810e39 | 8352 | char *dups; |
a50b1753 | 8353 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 8354 | size_t len; |
252b5132 RH |
8355 | |
8356 | if (end == NULL) | |
8357 | len = max; | |
8358 | else | |
8359 | len = end - start; | |
8360 | ||
a50b1753 | 8361 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 8362 | if (dups == NULL) |
252b5132 RH |
8363 | return NULL; |
8364 | ||
dc810e39 AM |
8365 | memcpy (dups, start, len); |
8366 | dups[len] = '\0'; | |
252b5132 | 8367 | |
dc810e39 | 8368 | return dups; |
252b5132 RH |
8369 | } |
8370 | ||
bb0082d6 | 8371 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 8372 | static bfd_boolean |
217aa764 | 8373 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8374 | { |
4a938328 MS |
8375 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
8376 | { | |
8377 | elfcore_psinfo_t psinfo; | |
252b5132 | 8378 | |
7ee38065 | 8379 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8380 | |
335e41d4 | 8381 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 8382 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 8383 | #endif |
228e534f | 8384 | elf_tdata (abfd)->core->program |
936e320b AM |
8385 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8386 | sizeof (psinfo.pr_fname)); | |
252b5132 | 8387 | |
228e534f | 8388 | elf_tdata (abfd)->core->command |
936e320b AM |
8389 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8390 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 8391 | } |
7ee38065 | 8392 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
8393 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
8394 | { | |
8395 | /* 64-bit host, 32-bit corefile */ | |
8396 | elfcore_psinfo32_t psinfo; | |
8397 | ||
7ee38065 | 8398 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8399 | |
335e41d4 | 8400 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 8401 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 8402 | #endif |
228e534f | 8403 | elf_tdata (abfd)->core->program |
936e320b AM |
8404 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8405 | sizeof (psinfo.pr_fname)); | |
4a938328 | 8406 | |
228e534f | 8407 | elf_tdata (abfd)->core->command |
936e320b AM |
8408 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8409 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
8410 | } |
8411 | #endif | |
8412 | ||
8413 | else | |
8414 | { | |
8415 | /* Fail - we don't know how to handle any other | |
8416 | note size (ie. data object type). */ | |
b34976b6 | 8417 | return TRUE; |
4a938328 | 8418 | } |
252b5132 RH |
8419 | |
8420 | /* Note that for some reason, a spurious space is tacked | |
8421 | onto the end of the args in some (at least one anyway) | |
c044fabd | 8422 | implementations, so strip it off if it exists. */ |
252b5132 RH |
8423 | |
8424 | { | |
228e534f | 8425 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
8426 | int n = strlen (command); |
8427 | ||
8428 | if (0 < n && command[n - 1] == ' ') | |
8429 | command[n - 1] = '\0'; | |
8430 | } | |
8431 | ||
b34976b6 | 8432 | return TRUE; |
252b5132 RH |
8433 | } |
8434 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
8435 | ||
252b5132 | 8436 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 8437 | static bfd_boolean |
217aa764 | 8438 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8439 | { |
f572a39d AM |
8440 | if (note->descsz == sizeof (pstatus_t) |
8441 | #if defined (HAVE_PXSTATUS_T) | |
8442 | || note->descsz == sizeof (pxstatus_t) | |
8443 | #endif | |
8444 | ) | |
4a938328 MS |
8445 | { |
8446 | pstatus_t pstat; | |
252b5132 | 8447 | |
4a938328 | 8448 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8449 | |
228e534f | 8450 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 8451 | } |
7ee38065 | 8452 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
8453 | else if (note->descsz == sizeof (pstatus32_t)) |
8454 | { | |
8455 | /* 64-bit host, 32-bit corefile */ | |
8456 | pstatus32_t pstat; | |
252b5132 | 8457 | |
4a938328 | 8458 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8459 | |
228e534f | 8460 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
8461 | } |
8462 | #endif | |
252b5132 RH |
8463 | /* Could grab some more details from the "representative" |
8464 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 8465 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 8466 | |
b34976b6 | 8467 | return TRUE; |
252b5132 RH |
8468 | } |
8469 | #endif /* defined (HAVE_PSTATUS_T) */ | |
8470 | ||
252b5132 | 8471 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 8472 | static bfd_boolean |
217aa764 | 8473 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
8474 | { |
8475 | lwpstatus_t lwpstat; | |
8476 | char buf[100]; | |
c044fabd | 8477 | char *name; |
d4c88bbb | 8478 | size_t len; |
c044fabd | 8479 | asection *sect; |
252b5132 | 8480 | |
f572a39d AM |
8481 | if (note->descsz != sizeof (lwpstat) |
8482 | #if defined (HAVE_LWPXSTATUS_T) | |
8483 | && note->descsz != sizeof (lwpxstatus_t) | |
8484 | #endif | |
8485 | ) | |
b34976b6 | 8486 | return TRUE; |
252b5132 RH |
8487 | |
8488 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
8489 | ||
228e534f | 8490 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
8491 | /* Do not overwrite the core signal if it has already been set by |
8492 | another thread. */ | |
228e534f AM |
8493 | if (elf_tdata (abfd)->core->signal == 0) |
8494 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 8495 | |
c044fabd | 8496 | /* Make a ".reg/999" section. */ |
252b5132 RH |
8497 | |
8498 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8499 | len = strlen (buf) + 1; |
217aa764 | 8500 | name = bfd_alloc (abfd, len); |
252b5132 | 8501 | if (name == NULL) |
b34976b6 | 8502 | return FALSE; |
d4c88bbb | 8503 | memcpy (name, buf, len); |
252b5132 | 8504 | |
117ed4f8 | 8505 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8506 | if (sect == NULL) |
b34976b6 | 8507 | return FALSE; |
252b5132 RH |
8508 | |
8509 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8510 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
8511 | sect->filepos = note->descpos |
8512 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
8513 | #endif | |
8514 | ||
8515 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 8516 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
8517 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
8518 | #endif | |
8519 | ||
252b5132 RH |
8520 | sect->alignment_power = 2; |
8521 | ||
8522 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 8523 | return FALSE; |
252b5132 RH |
8524 | |
8525 | /* Make a ".reg2/999" section */ | |
8526 | ||
8527 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8528 | len = strlen (buf) + 1; |
217aa764 | 8529 | name = bfd_alloc (abfd, len); |
252b5132 | 8530 | if (name == NULL) |
b34976b6 | 8531 | return FALSE; |
d4c88bbb | 8532 | memcpy (name, buf, len); |
252b5132 | 8533 | |
117ed4f8 | 8534 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8535 | if (sect == NULL) |
b34976b6 | 8536 | return FALSE; |
252b5132 RH |
8537 | |
8538 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8539 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
8540 | sect->filepos = note->descpos |
8541 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
8542 | #endif | |
8543 | ||
8544 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 8545 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
8546 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
8547 | #endif | |
8548 | ||
252b5132 RH |
8549 | sect->alignment_power = 2; |
8550 | ||
936e320b | 8551 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
8552 | } |
8553 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
8554 | ||
b34976b6 | 8555 | static bfd_boolean |
217aa764 | 8556 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
8557 | { |
8558 | char buf[30]; | |
c044fabd | 8559 | char *name; |
d4c88bbb | 8560 | size_t len; |
c044fabd | 8561 | asection *sect; |
4a6636fb PA |
8562 | int type; |
8563 | int is_active_thread; | |
8564 | bfd_vma base_addr; | |
16e9c715 | 8565 | |
4a6636fb | 8566 | if (note->descsz < 728) |
b34976b6 | 8567 | return TRUE; |
16e9c715 | 8568 | |
4a6636fb PA |
8569 | if (! CONST_STRNEQ (note->namedata, "win32")) |
8570 | return TRUE; | |
8571 | ||
8572 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 8573 | |
4a6636fb | 8574 | switch (type) |
16e9c715 | 8575 | { |
4a6636fb | 8576 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 8577 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 8578 | /* process_info.pid */ |
228e534f | 8579 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 8580 | /* process_info.signal */ |
228e534f | 8581 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 8582 | break; |
16e9c715 | 8583 | |
4a6636fb | 8584 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 8585 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
8586 | /* thread_info.tid */ |
8587 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 8588 | |
d4c88bbb | 8589 | len = strlen (buf) + 1; |
a50b1753 | 8590 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8591 | if (name == NULL) |
b34976b6 | 8592 | return FALSE; |
c044fabd | 8593 | |
d4c88bbb | 8594 | memcpy (name, buf, len); |
16e9c715 | 8595 | |
117ed4f8 | 8596 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 8597 | if (sect == NULL) |
b34976b6 | 8598 | return FALSE; |
c044fabd | 8599 | |
4a6636fb PA |
8600 | /* sizeof (thread_info.thread_context) */ |
8601 | sect->size = 716; | |
8602 | /* offsetof (thread_info.thread_context) */ | |
8603 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
8604 | sect->alignment_power = 2; |
8605 | ||
4a6636fb PA |
8606 | /* thread_info.is_active_thread */ |
8607 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
8608 | ||
8609 | if (is_active_thread) | |
16e9c715 | 8610 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 8611 | return FALSE; |
16e9c715 NC |
8612 | break; |
8613 | ||
4a6636fb | 8614 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 8615 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
8616 | /* module_info.base_address */ |
8617 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 8618 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 8619 | |
d4c88bbb | 8620 | len = strlen (buf) + 1; |
a50b1753 | 8621 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8622 | if (name == NULL) |
b34976b6 | 8623 | return FALSE; |
c044fabd | 8624 | |
d4c88bbb | 8625 | memcpy (name, buf, len); |
252b5132 | 8626 | |
117ed4f8 | 8627 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 8628 | |
16e9c715 | 8629 | if (sect == NULL) |
b34976b6 | 8630 | return FALSE; |
c044fabd | 8631 | |
eea6121a | 8632 | sect->size = note->descsz; |
16e9c715 | 8633 | sect->filepos = note->descpos; |
16e9c715 NC |
8634 | sect->alignment_power = 2; |
8635 | break; | |
8636 | ||
8637 | default: | |
b34976b6 | 8638 | return TRUE; |
16e9c715 NC |
8639 | } |
8640 | ||
b34976b6 | 8641 | return TRUE; |
16e9c715 | 8642 | } |
252b5132 | 8643 | |
b34976b6 | 8644 | static bfd_boolean |
217aa764 | 8645 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8646 | { |
9c5bfbb7 | 8647 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 8648 | |
252b5132 RH |
8649 | switch (note->type) |
8650 | { | |
8651 | default: | |
b34976b6 | 8652 | return TRUE; |
252b5132 | 8653 | |
252b5132 | 8654 | case NT_PRSTATUS: |
bb0082d6 AM |
8655 | if (bed->elf_backend_grok_prstatus) |
8656 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 8657 | return TRUE; |
bb0082d6 | 8658 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 8659 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 8660 | #else |
b34976b6 | 8661 | return TRUE; |
252b5132 RH |
8662 | #endif |
8663 | ||
8664 | #if defined (HAVE_PSTATUS_T) | |
8665 | case NT_PSTATUS: | |
8666 | return elfcore_grok_pstatus (abfd, note); | |
8667 | #endif | |
8668 | ||
8669 | #if defined (HAVE_LWPSTATUS_T) | |
8670 | case NT_LWPSTATUS: | |
8671 | return elfcore_grok_lwpstatus (abfd, note); | |
8672 | #endif | |
8673 | ||
8674 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
8675 | return elfcore_grok_prfpreg (abfd, note); | |
8676 | ||
c044fabd | 8677 | case NT_WIN32PSTATUS: |
16e9c715 | 8678 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 8679 | |
c044fabd | 8680 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
8681 | if (note->namesz == 6 |
8682 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
8683 | return elfcore_grok_prxfpreg (abfd, note); |
8684 | else | |
b34976b6 | 8685 | return TRUE; |
ff08c6bb | 8686 | |
4339cae0 L |
8687 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
8688 | if (note->namesz == 6 | |
8689 | && strcmp (note->namedata, "LINUX") == 0) | |
8690 | return elfcore_grok_xstatereg (abfd, note); | |
8691 | else | |
8692 | return TRUE; | |
8693 | ||
97753bd5 AM |
8694 | case NT_PPC_VMX: |
8695 | if (note->namesz == 6 | |
8696 | && strcmp (note->namedata, "LINUX") == 0) | |
8697 | return elfcore_grok_ppc_vmx (abfd, note); | |
8698 | else | |
8699 | return TRUE; | |
8700 | ||
89eeb0bc LM |
8701 | case NT_PPC_VSX: |
8702 | if (note->namesz == 6 | |
8703 | && strcmp (note->namedata, "LINUX") == 0) | |
8704 | return elfcore_grok_ppc_vsx (abfd, note); | |
8705 | else | |
8706 | return TRUE; | |
8707 | ||
0675e188 UW |
8708 | case NT_S390_HIGH_GPRS: |
8709 | if (note->namesz == 6 | |
8710 | && strcmp (note->namedata, "LINUX") == 0) | |
8711 | return elfcore_grok_s390_high_gprs (abfd, note); | |
8712 | else | |
8713 | return TRUE; | |
8714 | ||
d7eeb400 MS |
8715 | case NT_S390_TIMER: |
8716 | if (note->namesz == 6 | |
8717 | && strcmp (note->namedata, "LINUX") == 0) | |
8718 | return elfcore_grok_s390_timer (abfd, note); | |
8719 | else | |
8720 | return TRUE; | |
8721 | ||
8722 | case NT_S390_TODCMP: | |
8723 | if (note->namesz == 6 | |
8724 | && strcmp (note->namedata, "LINUX") == 0) | |
8725 | return elfcore_grok_s390_todcmp (abfd, note); | |
8726 | else | |
8727 | return TRUE; | |
8728 | ||
8729 | case NT_S390_TODPREG: | |
8730 | if (note->namesz == 6 | |
8731 | && strcmp (note->namedata, "LINUX") == 0) | |
8732 | return elfcore_grok_s390_todpreg (abfd, note); | |
8733 | else | |
8734 | return TRUE; | |
8735 | ||
8736 | case NT_S390_CTRS: | |
8737 | if (note->namesz == 6 | |
8738 | && strcmp (note->namedata, "LINUX") == 0) | |
8739 | return elfcore_grok_s390_ctrs (abfd, note); | |
8740 | else | |
8741 | return TRUE; | |
8742 | ||
8743 | case NT_S390_PREFIX: | |
8744 | if (note->namesz == 6 | |
8745 | && strcmp (note->namedata, "LINUX") == 0) | |
8746 | return elfcore_grok_s390_prefix (abfd, note); | |
8747 | else | |
8748 | return TRUE; | |
8749 | ||
355b81d9 UW |
8750 | case NT_S390_LAST_BREAK: |
8751 | if (note->namesz == 6 | |
8752 | && strcmp (note->namedata, "LINUX") == 0) | |
8753 | return elfcore_grok_s390_last_break (abfd, note); | |
8754 | else | |
8755 | return TRUE; | |
8756 | ||
8757 | case NT_S390_SYSTEM_CALL: | |
8758 | if (note->namesz == 6 | |
8759 | && strcmp (note->namedata, "LINUX") == 0) | |
8760 | return elfcore_grok_s390_system_call (abfd, note); | |
8761 | else | |
8762 | return TRUE; | |
8763 | ||
abb3f6cc NC |
8764 | case NT_S390_TDB: |
8765 | if (note->namesz == 6 | |
8766 | && strcmp (note->namedata, "LINUX") == 0) | |
8767 | return elfcore_grok_s390_tdb (abfd, note); | |
8768 | else | |
8769 | return TRUE; | |
8770 | ||
faa9a424 UW |
8771 | case NT_ARM_VFP: |
8772 | if (note->namesz == 6 | |
8773 | && strcmp (note->namedata, "LINUX") == 0) | |
8774 | return elfcore_grok_arm_vfp (abfd, note); | |
8775 | else | |
8776 | return TRUE; | |
8777 | ||
652451f8 YZ |
8778 | case NT_ARM_TLS: |
8779 | if (note->namesz == 6 | |
8780 | && strcmp (note->namedata, "LINUX") == 0) | |
8781 | return elfcore_grok_aarch_tls (abfd, note); | |
8782 | else | |
8783 | return TRUE; | |
8784 | ||
8785 | case NT_ARM_HW_BREAK: | |
8786 | if (note->namesz == 6 | |
8787 | && strcmp (note->namedata, "LINUX") == 0) | |
8788 | return elfcore_grok_aarch_hw_break (abfd, note); | |
8789 | else | |
8790 | return TRUE; | |
8791 | ||
8792 | case NT_ARM_HW_WATCH: | |
8793 | if (note->namesz == 6 | |
8794 | && strcmp (note->namedata, "LINUX") == 0) | |
8795 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
8796 | else | |
8797 | return TRUE; | |
8798 | ||
252b5132 RH |
8799 | case NT_PRPSINFO: |
8800 | case NT_PSINFO: | |
bb0082d6 AM |
8801 | if (bed->elf_backend_grok_psinfo) |
8802 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 8803 | return TRUE; |
bb0082d6 | 8804 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 8805 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 8806 | #else |
b34976b6 | 8807 | return TRUE; |
252b5132 | 8808 | #endif |
3333a7c3 RM |
8809 | |
8810 | case NT_AUXV: | |
8811 | { | |
117ed4f8 AM |
8812 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
8813 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
8814 | |
8815 | if (sect == NULL) | |
8816 | return FALSE; | |
eea6121a | 8817 | sect->size = note->descsz; |
3333a7c3 | 8818 | sect->filepos = note->descpos; |
3333a7c3 RM |
8819 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
8820 | ||
8821 | return TRUE; | |
8822 | } | |
9015683b | 8823 | |
451b7c33 TT |
8824 | case NT_FILE: |
8825 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
8826 | note); | |
8827 | ||
9015683b TT |
8828 | case NT_SIGINFO: |
8829 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
8830 | note); | |
252b5132 RH |
8831 | } |
8832 | } | |
8833 | ||
718175fa JK |
8834 | static bfd_boolean |
8835 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
8836 | { | |
30e8ee25 AM |
8837 | struct elf_obj_tdata *t; |
8838 | ||
8839 | if (note->descsz == 0) | |
8840 | return FALSE; | |
8841 | ||
8842 | t = elf_tdata (abfd); | |
c0355132 | 8843 | t->build_id = bfd_alloc (abfd, sizeof (*t->build_id) - 1 + note->descsz); |
30e8ee25 | 8844 | if (t->build_id == NULL) |
718175fa JK |
8845 | return FALSE; |
8846 | ||
c0355132 AM |
8847 | t->build_id->size = note->descsz; |
8848 | memcpy (t->build_id->data, note->descdata, note->descsz); | |
718175fa JK |
8849 | |
8850 | return TRUE; | |
8851 | } | |
8852 | ||
8853 | static bfd_boolean | |
8854 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
8855 | { | |
8856 | switch (note->type) | |
8857 | { | |
8858 | default: | |
8859 | return TRUE; | |
8860 | ||
8861 | case NT_GNU_BUILD_ID: | |
8862 | return elfobj_grok_gnu_build_id (abfd, note); | |
8863 | } | |
8864 | } | |
8865 | ||
e21e5835 NC |
8866 | static bfd_boolean |
8867 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
8868 | { | |
8869 | struct sdt_note *cur = | |
8870 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
8871 | + note->descsz); | |
8872 | ||
8873 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
8874 | cur->size = (bfd_size_type) note->descsz; | |
8875 | memcpy (cur->data, note->descdata, note->descsz); | |
8876 | ||
8877 | elf_tdata (abfd)->sdt_note_head = cur; | |
8878 | ||
8879 | return TRUE; | |
8880 | } | |
8881 | ||
8882 | static bfd_boolean | |
8883 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
8884 | { | |
8885 | switch (note->type) | |
8886 | { | |
8887 | case NT_STAPSDT: | |
8888 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
8889 | ||
8890 | default: | |
8891 | return TRUE; | |
8892 | } | |
8893 | } | |
8894 | ||
b34976b6 | 8895 | static bfd_boolean |
217aa764 | 8896 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
8897 | { |
8898 | char *cp; | |
8899 | ||
8900 | cp = strchr (note->namedata, '@'); | |
8901 | if (cp != NULL) | |
8902 | { | |
d2b64500 | 8903 | *lwpidp = atoi(cp + 1); |
b34976b6 | 8904 | return TRUE; |
50b2bdb7 | 8905 | } |
b34976b6 | 8906 | return FALSE; |
50b2bdb7 AM |
8907 | } |
8908 | ||
b34976b6 | 8909 | static bfd_boolean |
217aa764 | 8910 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 8911 | { |
50b2bdb7 | 8912 | /* Signal number at offset 0x08. */ |
228e534f | 8913 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
8914 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
8915 | ||
8916 | /* Process ID at offset 0x50. */ | |
228e534f | 8917 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
8918 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
8919 | ||
8920 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 8921 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
8922 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
8923 | ||
7720ba9f MK |
8924 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
8925 | note); | |
50b2bdb7 AM |
8926 | } |
8927 | ||
b34976b6 | 8928 | static bfd_boolean |
217aa764 | 8929 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
8930 | { |
8931 | int lwp; | |
8932 | ||
8933 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 8934 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 8935 | |
b4db1224 | 8936 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
8937 | { |
8938 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
8939 | find this note before any of the others, which is fine, |
8940 | since the kernel writes this note out first when it | |
8941 | creates a core file. */ | |
47d9a591 | 8942 | |
50b2bdb7 AM |
8943 | return elfcore_grok_netbsd_procinfo (abfd, note); |
8944 | } | |
8945 | ||
b4db1224 JT |
8946 | /* As of Jan 2002 there are no other machine-independent notes |
8947 | defined for NetBSD core files. If the note type is less | |
8948 | than the start of the machine-dependent note types, we don't | |
8949 | understand it. */ | |
47d9a591 | 8950 | |
b4db1224 | 8951 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 8952 | return TRUE; |
50b2bdb7 AM |
8953 | |
8954 | ||
8955 | switch (bfd_get_arch (abfd)) | |
8956 | { | |
08a40648 AM |
8957 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
8958 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
8959 | |
8960 | case bfd_arch_alpha: | |
8961 | case bfd_arch_sparc: | |
8962 | switch (note->type) | |
08a40648 AM |
8963 | { |
8964 | case NT_NETBSDCORE_FIRSTMACH+0: | |
8965 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8966 | |
08a40648 AM |
8967 | case NT_NETBSDCORE_FIRSTMACH+2: |
8968 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8969 | |
08a40648 AM |
8970 | default: |
8971 | return TRUE; | |
8972 | } | |
50b2bdb7 | 8973 | |
08a40648 AM |
8974 | /* On all other arch's, PT_GETREGS == mach+1 and |
8975 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
8976 | |
8977 | default: | |
8978 | switch (note->type) | |
08a40648 AM |
8979 | { |
8980 | case NT_NETBSDCORE_FIRSTMACH+1: | |
8981 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8982 | |
08a40648 AM |
8983 | case NT_NETBSDCORE_FIRSTMACH+3: |
8984 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8985 | |
08a40648 AM |
8986 | default: |
8987 | return TRUE; | |
8988 | } | |
50b2bdb7 AM |
8989 | } |
8990 | /* NOTREACHED */ | |
8991 | } | |
8992 | ||
67cc5033 MK |
8993 | static bfd_boolean |
8994 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
8995 | { | |
8996 | /* Signal number at offset 0x08. */ | |
228e534f | 8997 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
8998 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
8999 | ||
9000 | /* Process ID at offset 0x20. */ | |
228e534f | 9001 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
9002 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
9003 | ||
9004 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 9005 | elf_tdata (abfd)->core->command |
67cc5033 MK |
9006 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
9007 | ||
9008 | return TRUE; | |
9009 | } | |
9010 | ||
9011 | static bfd_boolean | |
9012 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
9013 | { | |
9014 | if (note->type == NT_OPENBSD_PROCINFO) | |
9015 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
9016 | ||
9017 | if (note->type == NT_OPENBSD_REGS) | |
9018 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
9019 | ||
9020 | if (note->type == NT_OPENBSD_FPREGS) | |
9021 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9022 | ||
9023 | if (note->type == NT_OPENBSD_XFPREGS) | |
9024 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9025 | ||
9026 | if (note->type == NT_OPENBSD_AUXV) | |
9027 | { | |
9028 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9029 | SEC_HAS_CONTENTS); | |
9030 | ||
9031 | if (sect == NULL) | |
9032 | return FALSE; | |
9033 | sect->size = note->descsz; | |
9034 | sect->filepos = note->descpos; | |
9035 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9036 | ||
9037 | return TRUE; | |
9038 | } | |
9039 | ||
9040 | if (note->type == NT_OPENBSD_WCOOKIE) | |
9041 | { | |
9042 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
9043 | SEC_HAS_CONTENTS); | |
9044 | ||
9045 | if (sect == NULL) | |
9046 | return FALSE; | |
9047 | sect->size = note->descsz; | |
9048 | sect->filepos = note->descpos; | |
9049 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9050 | ||
9051 | return TRUE; | |
9052 | } | |
9053 | ||
9054 | return TRUE; | |
9055 | } | |
9056 | ||
07c6e936 | 9057 | static bfd_boolean |
d3fd4074 | 9058 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
9059 | { |
9060 | void *ddata = note->descdata; | |
9061 | char buf[100]; | |
9062 | char *name; | |
9063 | asection *sect; | |
f8843e87 AM |
9064 | short sig; |
9065 | unsigned flags; | |
07c6e936 NC |
9066 | |
9067 | /* nto_procfs_status 'pid' field is at offset 0. */ | |
228e534f | 9068 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 9069 | |
f8843e87 AM |
9070 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
9071 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
9072 | ||
9073 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
9074 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
9075 | |
9076 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
9077 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
9078 | { | |
228e534f AM |
9079 | elf_tdata (abfd)->core->signal = sig; |
9080 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 9081 | } |
07c6e936 | 9082 | |
f8843e87 AM |
9083 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
9084 | do not come from signals so we make sure we set the current | |
9085 | thread just in case. */ | |
9086 | if (flags & 0x00000080) | |
228e534f | 9087 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
9088 | |
9089 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 9090 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 9091 | |
a50b1753 | 9092 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
9093 | if (name == NULL) |
9094 | return FALSE; | |
9095 | strcpy (name, buf); | |
9096 | ||
117ed4f8 | 9097 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
9098 | if (sect == NULL) |
9099 | return FALSE; | |
9100 | ||
eea6121a | 9101 | sect->size = note->descsz; |
07c6e936 | 9102 | sect->filepos = note->descpos; |
07c6e936 NC |
9103 | sect->alignment_power = 2; |
9104 | ||
9105 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
9106 | } | |
9107 | ||
9108 | static bfd_boolean | |
d69f560c KW |
9109 | elfcore_grok_nto_regs (bfd *abfd, |
9110 | Elf_Internal_Note *note, | |
d3fd4074 | 9111 | long tid, |
d69f560c | 9112 | char *base) |
07c6e936 NC |
9113 | { |
9114 | char buf[100]; | |
9115 | char *name; | |
9116 | asection *sect; | |
9117 | ||
d69f560c | 9118 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 9119 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 9120 | |
a50b1753 | 9121 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
9122 | if (name == NULL) |
9123 | return FALSE; | |
9124 | strcpy (name, buf); | |
9125 | ||
117ed4f8 | 9126 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
9127 | if (sect == NULL) |
9128 | return FALSE; | |
9129 | ||
eea6121a | 9130 | sect->size = note->descsz; |
07c6e936 | 9131 | sect->filepos = note->descpos; |
07c6e936 NC |
9132 | sect->alignment_power = 2; |
9133 | ||
f8843e87 | 9134 | /* This is the current thread. */ |
228e534f | 9135 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 9136 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
9137 | |
9138 | return TRUE; | |
07c6e936 NC |
9139 | } |
9140 | ||
9141 | #define BFD_QNT_CORE_INFO 7 | |
9142 | #define BFD_QNT_CORE_STATUS 8 | |
9143 | #define BFD_QNT_CORE_GREG 9 | |
9144 | #define BFD_QNT_CORE_FPREG 10 | |
9145 | ||
9146 | static bfd_boolean | |
217aa764 | 9147 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
9148 | { |
9149 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 9150 | tid from the previous call to pass down to the next gregs |
07c6e936 | 9151 | function. */ |
d3fd4074 | 9152 | static long tid = 1; |
07c6e936 NC |
9153 | |
9154 | switch (note->type) | |
9155 | { | |
d69f560c KW |
9156 | case BFD_QNT_CORE_INFO: |
9157 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
9158 | case BFD_QNT_CORE_STATUS: | |
9159 | return elfcore_grok_nto_status (abfd, note, &tid); | |
9160 | case BFD_QNT_CORE_GREG: | |
9161 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
9162 | case BFD_QNT_CORE_FPREG: | |
9163 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
9164 | default: | |
9165 | return TRUE; | |
07c6e936 NC |
9166 | } |
9167 | } | |
9168 | ||
b15fa79e AM |
9169 | static bfd_boolean |
9170 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
9171 | { | |
9172 | char *name; | |
9173 | asection *sect; | |
9174 | size_t len; | |
9175 | ||
9176 | /* Use note name as section name. */ | |
9177 | len = note->namesz; | |
a50b1753 | 9178 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
9179 | if (name == NULL) |
9180 | return FALSE; | |
9181 | memcpy (name, note->namedata, len); | |
9182 | name[len - 1] = '\0'; | |
9183 | ||
9184 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
9185 | if (sect == NULL) | |
9186 | return FALSE; | |
9187 | ||
9188 | sect->size = note->descsz; | |
9189 | sect->filepos = note->descpos; | |
9190 | sect->alignment_power = 1; | |
9191 | ||
9192 | return TRUE; | |
9193 | } | |
9194 | ||
7c76fa91 MS |
9195 | /* Function: elfcore_write_note |
9196 | ||
47d9a591 | 9197 | Inputs: |
a39f3346 | 9198 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
9199 | name of note |
9200 | type of note | |
9201 | data for note | |
9202 | size of data for note | |
9203 | ||
a39f3346 AM |
9204 | Writes note to end of buffer. ELF64 notes are written exactly as |
9205 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
9206 | that they ought to have 8-byte namesz and descsz field, and have | |
9207 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
9208 | ||
7c76fa91 | 9209 | Return: |
a39f3346 | 9210 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
9211 | |
9212 | char * | |
a39f3346 | 9213 | elfcore_write_note (bfd *abfd, |
217aa764 | 9214 | char *buf, |
a39f3346 | 9215 | int *bufsiz, |
217aa764 | 9216 | const char *name, |
a39f3346 | 9217 | int type, |
217aa764 | 9218 | const void *input, |
a39f3346 | 9219 | int size) |
7c76fa91 MS |
9220 | { |
9221 | Elf_External_Note *xnp; | |
d4c88bbb | 9222 | size_t namesz; |
d4c88bbb | 9223 | size_t newspace; |
a39f3346 | 9224 | char *dest; |
7c76fa91 | 9225 | |
d4c88bbb | 9226 | namesz = 0; |
d4c88bbb | 9227 | if (name != NULL) |
a39f3346 | 9228 | namesz = strlen (name) + 1; |
d4c88bbb | 9229 | |
a39f3346 | 9230 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 9231 | |
a50b1753 | 9232 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
9233 | if (buf == NULL) |
9234 | return buf; | |
a39f3346 | 9235 | dest = buf + *bufsiz; |
7c76fa91 MS |
9236 | *bufsiz += newspace; |
9237 | xnp = (Elf_External_Note *) dest; | |
9238 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
9239 | H_PUT_32 (abfd, size, xnp->descsz); | |
9240 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
9241 | dest = xnp->name; |
9242 | if (name != NULL) | |
9243 | { | |
9244 | memcpy (dest, name, namesz); | |
9245 | dest += namesz; | |
a39f3346 | 9246 | while (namesz & 3) |
d4c88bbb AM |
9247 | { |
9248 | *dest++ = '\0'; | |
a39f3346 | 9249 | ++namesz; |
d4c88bbb AM |
9250 | } |
9251 | } | |
9252 | memcpy (dest, input, size); | |
a39f3346 AM |
9253 | dest += size; |
9254 | while (size & 3) | |
9255 | { | |
9256 | *dest++ = '\0'; | |
9257 | ++size; | |
9258 | } | |
9259 | return buf; | |
7c76fa91 MS |
9260 | } |
9261 | ||
7c76fa91 | 9262 | char * |
217aa764 AM |
9263 | elfcore_write_prpsinfo (bfd *abfd, |
9264 | char *buf, | |
9265 | int *bufsiz, | |
9266 | const char *fname, | |
9267 | const char *psargs) | |
7c76fa91 | 9268 | { |
183e98be AM |
9269 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9270 | ||
9271 | if (bed->elf_backend_write_core_note != NULL) | |
9272 | { | |
9273 | char *ret; | |
9274 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9275 | NT_PRPSINFO, fname, psargs); | |
9276 | if (ret != NULL) | |
9277 | return ret; | |
9278 | } | |
7c76fa91 | 9279 | |
1f20dca5 | 9280 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
183e98be AM |
9281 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
9282 | if (bed->s->elfclass == ELFCLASS32) | |
9283 | { | |
9284 | #if defined (HAVE_PSINFO32_T) | |
9285 | psinfo32_t data; | |
9286 | int note_type = NT_PSINFO; | |
9287 | #else | |
9288 | prpsinfo32_t data; | |
9289 | int note_type = NT_PRPSINFO; | |
9290 | #endif | |
9291 | ||
9292 | memset (&data, 0, sizeof (data)); | |
9293 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9294 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9295 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9296 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
9297 | } |
9298 | else | |
9299 | #endif | |
9300 | { | |
7c76fa91 | 9301 | #if defined (HAVE_PSINFO_T) |
183e98be AM |
9302 | psinfo_t data; |
9303 | int note_type = NT_PSINFO; | |
7c76fa91 | 9304 | #else |
183e98be AM |
9305 | prpsinfo_t data; |
9306 | int note_type = NT_PRPSINFO; | |
7c76fa91 MS |
9307 | #endif |
9308 | ||
183e98be AM |
9309 | memset (&data, 0, sizeof (data)); |
9310 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9311 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9312 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9313 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 9314 | } |
7c76fa91 MS |
9315 | #endif /* PSINFO_T or PRPSINFO_T */ |
9316 | ||
1f20dca5 UW |
9317 | free (buf); |
9318 | return NULL; | |
9319 | } | |
9320 | ||
70a38d42 SDJ |
9321 | char * |
9322 | elfcore_write_linux_prpsinfo32 | |
9323 | (bfd *abfd, char *buf, int *bufsiz, | |
9324 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
9325 | { | |
9326 | struct elf_external_linux_prpsinfo32 data; | |
9327 | ||
9328 | memset (&data, 0, sizeof (data)); | |
9329 | LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data); | |
9330 | ||
9331 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
9332 | &data, sizeof (data)); | |
9333 | } | |
9334 | ||
9335 | char * | |
9336 | elfcore_write_linux_prpsinfo64 | |
9337 | (bfd *abfd, char *buf, int *bufsiz, | |
9338 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
9339 | { | |
9340 | struct elf_external_linux_prpsinfo64 data; | |
9341 | ||
9342 | memset (&data, 0, sizeof (data)); | |
9343 | LINUX_PRPSINFO64_SWAP_FIELDS (abfd, prpsinfo, data); | |
9344 | ||
9345 | return elfcore_write_note (abfd, buf, bufsiz, | |
9346 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
9347 | } | |
9348 | ||
7c76fa91 | 9349 | char * |
217aa764 AM |
9350 | elfcore_write_prstatus (bfd *abfd, |
9351 | char *buf, | |
9352 | int *bufsiz, | |
9353 | long pid, | |
9354 | int cursig, | |
9355 | const void *gregs) | |
7c76fa91 | 9356 | { |
183e98be | 9357 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 9358 | |
183e98be AM |
9359 | if (bed->elf_backend_write_core_note != NULL) |
9360 | { | |
9361 | char *ret; | |
9362 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9363 | NT_PRSTATUS, | |
9364 | pid, cursig, gregs); | |
9365 | if (ret != NULL) | |
9366 | return ret; | |
9367 | } | |
9368 | ||
1f20dca5 | 9369 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
9370 | #if defined (HAVE_PRSTATUS32_T) |
9371 | if (bed->s->elfclass == ELFCLASS32) | |
9372 | { | |
9373 | prstatus32_t prstat; | |
9374 | ||
9375 | memset (&prstat, 0, sizeof (prstat)); | |
9376 | prstat.pr_pid = pid; | |
9377 | prstat.pr_cursig = cursig; | |
9378 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9379 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9380 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9381 | } | |
9382 | else | |
9383 | #endif | |
9384 | { | |
9385 | prstatus_t prstat; | |
9386 | ||
9387 | memset (&prstat, 0, sizeof (prstat)); | |
9388 | prstat.pr_pid = pid; | |
9389 | prstat.pr_cursig = cursig; | |
9390 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9391 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9392 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9393 | } | |
7c76fa91 MS |
9394 | #endif /* HAVE_PRSTATUS_T */ |
9395 | ||
1f20dca5 UW |
9396 | free (buf); |
9397 | return NULL; | |
9398 | } | |
9399 | ||
51316059 MS |
9400 | #if defined (HAVE_LWPSTATUS_T) |
9401 | char * | |
217aa764 AM |
9402 | elfcore_write_lwpstatus (bfd *abfd, |
9403 | char *buf, | |
9404 | int *bufsiz, | |
9405 | long pid, | |
9406 | int cursig, | |
9407 | const void *gregs) | |
51316059 MS |
9408 | { |
9409 | lwpstatus_t lwpstat; | |
183e98be | 9410 | const char *note_name = "CORE"; |
51316059 MS |
9411 | |
9412 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
9413 | lwpstat.pr_lwpid = pid >> 16; | |
9414 | lwpstat.pr_cursig = cursig; | |
9415 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 9416 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
9417 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
9418 | #if !defined(gregs) | |
9419 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
9420 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
9421 | #else | |
9422 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
9423 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
9424 | #endif | |
9425 | #endif | |
47d9a591 | 9426 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
9427 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
9428 | } | |
9429 | #endif /* HAVE_LWPSTATUS_T */ | |
9430 | ||
7c76fa91 MS |
9431 | #if defined (HAVE_PSTATUS_T) |
9432 | char * | |
217aa764 AM |
9433 | elfcore_write_pstatus (bfd *abfd, |
9434 | char *buf, | |
9435 | int *bufsiz, | |
9436 | long pid, | |
6c10990d NC |
9437 | int cursig ATTRIBUTE_UNUSED, |
9438 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 9439 | { |
183e98be AM |
9440 | const char *note_name = "CORE"; |
9441 | #if defined (HAVE_PSTATUS32_T) | |
9442 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 9443 | |
183e98be AM |
9444 | if (bed->s->elfclass == ELFCLASS32) |
9445 | { | |
9446 | pstatus32_t pstat; | |
9447 | ||
9448 | memset (&pstat, 0, sizeof (pstat)); | |
9449 | pstat.pr_pid = pid & 0xffff; | |
9450 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9451 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9452 | return buf; | |
9453 | } | |
9454 | else | |
9455 | #endif | |
9456 | { | |
9457 | pstatus_t pstat; | |
9458 | ||
9459 | memset (&pstat, 0, sizeof (pstat)); | |
9460 | pstat.pr_pid = pid & 0xffff; | |
9461 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9462 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9463 | return buf; | |
9464 | } | |
7c76fa91 MS |
9465 | } |
9466 | #endif /* HAVE_PSTATUS_T */ | |
9467 | ||
9468 | char * | |
217aa764 AM |
9469 | elfcore_write_prfpreg (bfd *abfd, |
9470 | char *buf, | |
9471 | int *bufsiz, | |
9472 | const void *fpregs, | |
9473 | int size) | |
7c76fa91 | 9474 | { |
183e98be | 9475 | const char *note_name = "CORE"; |
47d9a591 | 9476 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9477 | note_name, NT_FPREGSET, fpregs, size); |
9478 | } | |
9479 | ||
9480 | char * | |
217aa764 AM |
9481 | elfcore_write_prxfpreg (bfd *abfd, |
9482 | char *buf, | |
9483 | int *bufsiz, | |
9484 | const void *xfpregs, | |
9485 | int size) | |
7c76fa91 MS |
9486 | { |
9487 | char *note_name = "LINUX"; | |
47d9a591 | 9488 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9489 | note_name, NT_PRXFPREG, xfpregs, size); |
9490 | } | |
9491 | ||
4339cae0 L |
9492 | char * |
9493 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
9494 | const void *xfpregs, int size) | |
9495 | { | |
9496 | char *note_name = "LINUX"; | |
9497 | return elfcore_write_note (abfd, buf, bufsiz, | |
9498 | note_name, NT_X86_XSTATE, xfpregs, size); | |
9499 | } | |
9500 | ||
97753bd5 AM |
9501 | char * |
9502 | elfcore_write_ppc_vmx (bfd *abfd, | |
9503 | char *buf, | |
9504 | int *bufsiz, | |
9505 | const void *ppc_vmx, | |
9506 | int size) | |
9507 | { | |
9508 | char *note_name = "LINUX"; | |
9509 | return elfcore_write_note (abfd, buf, bufsiz, | |
9510 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
9511 | } | |
9512 | ||
89eeb0bc LM |
9513 | char * |
9514 | elfcore_write_ppc_vsx (bfd *abfd, | |
9515 | char *buf, | |
9516 | int *bufsiz, | |
9517 | const void *ppc_vsx, | |
9518 | int size) | |
9519 | { | |
9520 | char *note_name = "LINUX"; | |
9521 | return elfcore_write_note (abfd, buf, bufsiz, | |
9522 | note_name, NT_PPC_VSX, ppc_vsx, size); | |
9523 | } | |
9524 | ||
0675e188 UW |
9525 | static char * |
9526 | elfcore_write_s390_high_gprs (bfd *abfd, | |
9527 | char *buf, | |
9528 | int *bufsiz, | |
9529 | const void *s390_high_gprs, | |
9530 | int size) | |
9531 | { | |
9532 | char *note_name = "LINUX"; | |
9533 | return elfcore_write_note (abfd, buf, bufsiz, | |
9534 | note_name, NT_S390_HIGH_GPRS, | |
9535 | s390_high_gprs, size); | |
9536 | } | |
9537 | ||
d7eeb400 MS |
9538 | char * |
9539 | elfcore_write_s390_timer (bfd *abfd, | |
9540 | char *buf, | |
9541 | int *bufsiz, | |
9542 | const void *s390_timer, | |
9543 | int size) | |
9544 | { | |
9545 | char *note_name = "LINUX"; | |
9546 | return elfcore_write_note (abfd, buf, bufsiz, | |
9547 | note_name, NT_S390_TIMER, s390_timer, size); | |
9548 | } | |
9549 | ||
9550 | char * | |
9551 | elfcore_write_s390_todcmp (bfd *abfd, | |
9552 | char *buf, | |
9553 | int *bufsiz, | |
9554 | const void *s390_todcmp, | |
9555 | int size) | |
9556 | { | |
9557 | char *note_name = "LINUX"; | |
9558 | return elfcore_write_note (abfd, buf, bufsiz, | |
9559 | note_name, NT_S390_TODCMP, s390_todcmp, size); | |
9560 | } | |
9561 | ||
9562 | char * | |
9563 | elfcore_write_s390_todpreg (bfd *abfd, | |
9564 | char *buf, | |
9565 | int *bufsiz, | |
9566 | const void *s390_todpreg, | |
9567 | int size) | |
9568 | { | |
9569 | char *note_name = "LINUX"; | |
9570 | return elfcore_write_note (abfd, buf, bufsiz, | |
9571 | note_name, NT_S390_TODPREG, s390_todpreg, size); | |
9572 | } | |
9573 | ||
9574 | char * | |
9575 | elfcore_write_s390_ctrs (bfd *abfd, | |
9576 | char *buf, | |
9577 | int *bufsiz, | |
9578 | const void *s390_ctrs, | |
9579 | int size) | |
9580 | { | |
9581 | char *note_name = "LINUX"; | |
9582 | return elfcore_write_note (abfd, buf, bufsiz, | |
9583 | note_name, NT_S390_CTRS, s390_ctrs, size); | |
9584 | } | |
9585 | ||
9586 | char * | |
9587 | elfcore_write_s390_prefix (bfd *abfd, | |
9588 | char *buf, | |
9589 | int *bufsiz, | |
9590 | const void *s390_prefix, | |
9591 | int size) | |
9592 | { | |
9593 | char *note_name = "LINUX"; | |
9594 | return elfcore_write_note (abfd, buf, bufsiz, | |
9595 | note_name, NT_S390_PREFIX, s390_prefix, size); | |
9596 | } | |
9597 | ||
355b81d9 UW |
9598 | char * |
9599 | elfcore_write_s390_last_break (bfd *abfd, | |
9600 | char *buf, | |
9601 | int *bufsiz, | |
9602 | const void *s390_last_break, | |
9603 | int size) | |
9604 | { | |
9605 | char *note_name = "LINUX"; | |
9606 | return elfcore_write_note (abfd, buf, bufsiz, | |
9607 | note_name, NT_S390_LAST_BREAK, | |
9608 | s390_last_break, size); | |
9609 | } | |
9610 | ||
9611 | char * | |
9612 | elfcore_write_s390_system_call (bfd *abfd, | |
9613 | char *buf, | |
9614 | int *bufsiz, | |
9615 | const void *s390_system_call, | |
9616 | int size) | |
9617 | { | |
9618 | char *note_name = "LINUX"; | |
9619 | return elfcore_write_note (abfd, buf, bufsiz, | |
9620 | note_name, NT_S390_SYSTEM_CALL, | |
9621 | s390_system_call, size); | |
9622 | } | |
9623 | ||
abb3f6cc NC |
9624 | char * |
9625 | elfcore_write_s390_tdb (bfd *abfd, | |
9626 | char *buf, | |
9627 | int *bufsiz, | |
9628 | const void *s390_tdb, | |
9629 | int size) | |
9630 | { | |
9631 | char *note_name = "LINUX"; | |
9632 | return elfcore_write_note (abfd, buf, bufsiz, | |
9633 | note_name, NT_S390_TDB, s390_tdb, size); | |
9634 | } | |
9635 | ||
faa9a424 UW |
9636 | char * |
9637 | elfcore_write_arm_vfp (bfd *abfd, | |
9638 | char *buf, | |
9639 | int *bufsiz, | |
9640 | const void *arm_vfp, | |
9641 | int size) | |
9642 | { | |
9643 | char *note_name = "LINUX"; | |
9644 | return elfcore_write_note (abfd, buf, bufsiz, | |
9645 | note_name, NT_ARM_VFP, arm_vfp, size); | |
9646 | } | |
9647 | ||
652451f8 YZ |
9648 | char * |
9649 | elfcore_write_aarch_tls (bfd *abfd, | |
9650 | char *buf, | |
9651 | int *bufsiz, | |
9652 | const void *aarch_tls, | |
9653 | int size) | |
9654 | { | |
9655 | char *note_name = "LINUX"; | |
9656 | return elfcore_write_note (abfd, buf, bufsiz, | |
9657 | note_name, NT_ARM_TLS, aarch_tls, size); | |
9658 | } | |
9659 | ||
9660 | char * | |
9661 | elfcore_write_aarch_hw_break (bfd *abfd, | |
9662 | char *buf, | |
9663 | int *bufsiz, | |
9664 | const void *aarch_hw_break, | |
9665 | int size) | |
9666 | { | |
9667 | char *note_name = "LINUX"; | |
9668 | return elfcore_write_note (abfd, buf, bufsiz, | |
9669 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
9670 | } | |
9671 | ||
9672 | char * | |
9673 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
9674 | char *buf, | |
9675 | int *bufsiz, | |
9676 | const void *aarch_hw_watch, | |
9677 | int size) | |
9678 | { | |
9679 | char *note_name = "LINUX"; | |
9680 | return elfcore_write_note (abfd, buf, bufsiz, | |
9681 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
9682 | } | |
9683 | ||
bb864ac1 CES |
9684 | char * |
9685 | elfcore_write_register_note (bfd *abfd, | |
9686 | char *buf, | |
9687 | int *bufsiz, | |
9688 | const char *section, | |
9689 | const void *data, | |
9690 | int size) | |
9691 | { | |
9692 | if (strcmp (section, ".reg2") == 0) | |
9693 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
9694 | if (strcmp (section, ".reg-xfp") == 0) | |
9695 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
9696 | if (strcmp (section, ".reg-xstate") == 0) |
9697 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9698 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
9699 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
9700 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
9701 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
9702 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
9703 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
9704 | if (strcmp (section, ".reg-s390-timer") == 0) |
9705 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
9706 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
9707 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
9708 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
9709 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
9710 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
9711 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
9712 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
9713 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
9714 | if (strcmp (section, ".reg-s390-last-break") == 0) |
9715 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
9716 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
9717 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
9718 | if (strcmp (section, ".reg-s390-tdb") == 0) |
9719 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
9720 | if (strcmp (section, ".reg-arm-vfp") == 0) |
9721 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
9722 | if (strcmp (section, ".reg-aarch-tls") == 0) |
9723 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
9724 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
9725 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
9726 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
9727 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9728 | return NULL; |
9729 | } | |
9730 | ||
b34976b6 | 9731 | static bfd_boolean |
718175fa | 9732 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset) |
252b5132 | 9733 | { |
c044fabd | 9734 | char *p; |
252b5132 | 9735 | |
252b5132 RH |
9736 | p = buf; |
9737 | while (p < buf + size) | |
9738 | { | |
c044fabd KH |
9739 | /* FIXME: bad alignment assumption. */ |
9740 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
9741 | Elf_Internal_Note in; |
9742 | ||
baea7ef1 AM |
9743 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
9744 | return FALSE; | |
9745 | ||
dc810e39 | 9746 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 9747 | |
dc810e39 | 9748 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 9749 | in.namedata = xnp->name; |
baea7ef1 AM |
9750 | if (in.namesz > buf - in.namedata + size) |
9751 | return FALSE; | |
252b5132 | 9752 | |
dc810e39 | 9753 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
9754 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
9755 | in.descpos = offset + (in.descdata - buf); | |
baea7ef1 AM |
9756 | if (in.descsz != 0 |
9757 | && (in.descdata >= buf + size | |
9758 | || in.descsz > buf - in.descdata + size)) | |
9759 | return FALSE; | |
252b5132 | 9760 | |
718175fa JK |
9761 | switch (bfd_get_format (abfd)) |
9762 | { | |
9763 | default: | |
9764 | return TRUE; | |
9765 | ||
9766 | case bfd_core: | |
9767 | if (CONST_STRNEQ (in.namedata, "NetBSD-CORE")) | |
9768 | { | |
9769 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |
9770 | return FALSE; | |
9771 | } | |
67cc5033 MK |
9772 | else if (CONST_STRNEQ (in.namedata, "OpenBSD")) |
9773 | { | |
9774 | if (! elfcore_grok_openbsd_note (abfd, &in)) | |
9775 | return FALSE; | |
9776 | } | |
718175fa JK |
9777 | else if (CONST_STRNEQ (in.namedata, "QNX")) |
9778 | { | |
9779 | if (! elfcore_grok_nto_note (abfd, &in)) | |
9780 | return FALSE; | |
9781 | } | |
b15fa79e AM |
9782 | else if (CONST_STRNEQ (in.namedata, "SPU/")) |
9783 | { | |
9784 | if (! elfcore_grok_spu_note (abfd, &in)) | |
9785 | return FALSE; | |
9786 | } | |
718175fa JK |
9787 | else |
9788 | { | |
9789 | if (! elfcore_grok_note (abfd, &in)) | |
9790 | return FALSE; | |
9791 | } | |
9792 | break; | |
9793 | ||
9794 | case bfd_object: | |
9795 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
9796 | { | |
9797 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
9798 | return FALSE; | |
9799 | } | |
e21e5835 NC |
9800 | else if (in.namesz == sizeof "stapsdt" |
9801 | && strcmp (in.namedata, "stapsdt") == 0) | |
9802 | { | |
9803 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
9804 | return FALSE; | |
9805 | } | |
718175fa | 9806 | break; |
08a40648 | 9807 | } |
252b5132 RH |
9808 | |
9809 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
9810 | } | |
9811 | ||
718175fa JK |
9812 | return TRUE; |
9813 | } | |
9814 | ||
9815 | static bfd_boolean | |
9816 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) | |
9817 | { | |
9818 | char *buf; | |
9819 | ||
9820 | if (size <= 0) | |
9821 | return TRUE; | |
9822 | ||
9823 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
9824 | return FALSE; | |
9825 | ||
a50b1753 | 9826 | buf = (char *) bfd_malloc (size); |
718175fa JK |
9827 | if (buf == NULL) |
9828 | return FALSE; | |
9829 | ||
9830 | if (bfd_bread (buf, size, abfd) != size | |
9831 | || !elf_parse_notes (abfd, buf, size, offset)) | |
9832 | { | |
9833 | free (buf); | |
9834 | return FALSE; | |
9835 | } | |
9836 | ||
252b5132 | 9837 | free (buf); |
b34976b6 | 9838 | return TRUE; |
252b5132 | 9839 | } |
98d8431c JB |
9840 | \f |
9841 | /* Providing external access to the ELF program header table. */ | |
9842 | ||
9843 | /* Return an upper bound on the number of bytes required to store a | |
9844 | copy of ABFD's program header table entries. Return -1 if an error | |
9845 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9846 | |
98d8431c | 9847 | long |
217aa764 | 9848 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
9849 | { |
9850 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9851 | { | |
9852 | bfd_set_error (bfd_error_wrong_format); | |
9853 | return -1; | |
9854 | } | |
9855 | ||
936e320b | 9856 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
9857 | } |
9858 | ||
98d8431c JB |
9859 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
9860 | will be stored as an array of Elf_Internal_Phdr structures, as | |
9861 | defined in include/elf/internal.h. To find out how large the | |
9862 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
9863 | ||
9864 | Return the number of program header table entries read, or -1 if an | |
9865 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9866 | |
98d8431c | 9867 | int |
217aa764 | 9868 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
9869 | { |
9870 | int num_phdrs; | |
9871 | ||
9872 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9873 | { | |
9874 | bfd_set_error (bfd_error_wrong_format); | |
9875 | return -1; | |
9876 | } | |
9877 | ||
9878 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 9879 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
9880 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
9881 | ||
9882 | return num_phdrs; | |
9883 | } | |
ae4221d7 | 9884 | |
db6751f2 | 9885 | enum elf_reloc_type_class |
7e612e98 AM |
9886 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
9887 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
9888 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
9889 | { |
9890 | return reloc_class_normal; | |
9891 | } | |
f8df10f4 | 9892 | |
47d9a591 | 9893 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
9894 | relocation against a local symbol. */ |
9895 | ||
9896 | bfd_vma | |
217aa764 AM |
9897 | _bfd_elf_rela_local_sym (bfd *abfd, |
9898 | Elf_Internal_Sym *sym, | |
8517fae7 | 9899 | asection **psec, |
217aa764 | 9900 | Elf_Internal_Rela *rel) |
f8df10f4 | 9901 | { |
8517fae7 | 9902 | asection *sec = *psec; |
f8df10f4 JJ |
9903 | bfd_vma relocation; |
9904 | ||
9905 | relocation = (sec->output_section->vma | |
9906 | + sec->output_offset | |
9907 | + sym->st_value); | |
9908 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 9909 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 9910 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 9911 | { |
f8df10f4 | 9912 | rel->r_addend = |
8517fae7 | 9913 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 9914 | elf_section_data (sec)->sec_info, |
753731ee AM |
9915 | sym->st_value + rel->r_addend); |
9916 | if (sec != *psec) | |
9917 | { | |
9918 | /* If we have changed the section, and our original section is | |
9919 | marked with SEC_EXCLUDE, it means that the original | |
9920 | SEC_MERGE section has been completely subsumed in some | |
9921 | other SEC_MERGE section. In this case, we need to leave | |
9922 | some info around for --emit-relocs. */ | |
9923 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
9924 | sec->kept_section = *psec; | |
9925 | sec = *psec; | |
9926 | } | |
8517fae7 AM |
9927 | rel->r_addend -= relocation; |
9928 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
9929 | } |
9930 | return relocation; | |
9931 | } | |
c629eae0 JJ |
9932 | |
9933 | bfd_vma | |
217aa764 AM |
9934 | _bfd_elf_rel_local_sym (bfd *abfd, |
9935 | Elf_Internal_Sym *sym, | |
9936 | asection **psec, | |
9937 | bfd_vma addend) | |
47d9a591 | 9938 | { |
c629eae0 JJ |
9939 | asection *sec = *psec; |
9940 | ||
dbaa2011 | 9941 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
9942 | return sym->st_value + addend; |
9943 | ||
9944 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 9945 | elf_section_data (sec)->sec_info, |
753731ee | 9946 | sym->st_value + addend); |
c629eae0 JJ |
9947 | } |
9948 | ||
9949 | bfd_vma | |
217aa764 | 9950 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 9951 | struct bfd_link_info *info, |
217aa764 AM |
9952 | asection *sec, |
9953 | bfd_vma offset) | |
c629eae0 | 9954 | { |
68bfbfcc | 9955 | switch (sec->sec_info_type) |
65765700 | 9956 | { |
dbaa2011 | 9957 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
9958 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
9959 | offset); | |
dbaa2011 | 9960 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 9961 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
65765700 | 9962 | default: |
310fd250 L |
9963 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
9964 | { | |
9965 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9966 | bfd_size_type address_size = bed->s->arch_size / 8; | |
9967 | offset = sec->size - offset - address_size; | |
9968 | } | |
65765700 JJ |
9969 | return offset; |
9970 | } | |
c629eae0 | 9971 | } |
3333a7c3 RM |
9972 | \f |
9973 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
9974 | reconstruct an ELF file by reading the segments out of remote memory | |
9975 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
9976 | points to. If not null, *LOADBASEP is filled in with the difference | |
9977 | between the VMAs from which the segments were read, and the VMAs the | |
9978 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
9979 | ||
9980 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
9981 | remote memory at target address VMA into the local buffer at MYADDR; it | |
9982 | should return zero on success or an `errno' code on failure. TEMPL must | |
9983 | be a BFD for an ELF target with the word size and byte order found in | |
9984 | the remote memory. */ | |
9985 | ||
9986 | bfd * | |
217aa764 AM |
9987 | bfd_elf_bfd_from_remote_memory |
9988 | (bfd *templ, | |
9989 | bfd_vma ehdr_vma, | |
f0a5d95a | 9990 | bfd_size_type size, |
217aa764 | 9991 | bfd_vma *loadbasep, |
fe78531d | 9992 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
9993 | { |
9994 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 9995 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 9996 | } |
4c45e5c9 JJ |
9997 | \f |
9998 | long | |
c9727e01 AM |
9999 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
10000 | long symcount ATTRIBUTE_UNUSED, | |
10001 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 10002 | long dynsymcount, |
c9727e01 AM |
10003 | asymbol **dynsyms, |
10004 | asymbol **ret) | |
4c45e5c9 JJ |
10005 | { |
10006 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
10007 | asection *relplt; | |
10008 | asymbol *s; | |
10009 | const char *relplt_name; | |
10010 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
10011 | arelent *p; | |
10012 | long count, i, n; | |
10013 | size_t size; | |
10014 | Elf_Internal_Shdr *hdr; | |
10015 | char *names; | |
10016 | asection *plt; | |
10017 | ||
8615f3f2 AM |
10018 | *ret = NULL; |
10019 | ||
90e3cdf2 JJ |
10020 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
10021 | return 0; | |
10022 | ||
8615f3f2 AM |
10023 | if (dynsymcount <= 0) |
10024 | return 0; | |
10025 | ||
4c45e5c9 JJ |
10026 | if (!bed->plt_sym_val) |
10027 | return 0; | |
10028 | ||
10029 | relplt_name = bed->relplt_name; | |
10030 | if (relplt_name == NULL) | |
d35fd659 | 10031 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
10032 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
10033 | if (relplt == NULL) | |
10034 | return 0; | |
10035 | ||
10036 | hdr = &elf_section_data (relplt)->this_hdr; | |
10037 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
10038 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
10039 | return 0; | |
10040 | ||
10041 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
10042 | if (plt == NULL) | |
10043 | return 0; | |
10044 | ||
10045 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 10046 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
10047 | return -1; |
10048 | ||
eea6121a | 10049 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
10050 | size = count * sizeof (asymbol); |
10051 | p = relplt->relocation; | |
cb53bf42 | 10052 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
10053 | { |
10054 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
10055 | if (p->addend != 0) | |
10056 | { | |
10057 | #ifdef BFD64 | |
10058 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
10059 | #else | |
10060 | size += sizeof ("+0x") - 1 + 8; | |
10061 | #endif | |
10062 | } | |
10063 | } | |
4c45e5c9 | 10064 | |
a50b1753 | 10065 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
10066 | if (s == NULL) |
10067 | return -1; | |
10068 | ||
10069 | names = (char *) (s + count); | |
10070 | p = relplt->relocation; | |
10071 | n = 0; | |
cb53bf42 | 10072 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
10073 | { |
10074 | size_t len; | |
10075 | bfd_vma addr; | |
10076 | ||
10077 | addr = bed->plt_sym_val (i, plt, p); | |
10078 | if (addr == (bfd_vma) -1) | |
10079 | continue; | |
10080 | ||
10081 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
10082 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
10083 | we are defining a symbol, ensure one of them is set. */ | |
10084 | if ((s->flags & BSF_LOCAL) == 0) | |
10085 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 10086 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
10087 | s->section = plt; |
10088 | s->value = addr - plt->vma; | |
10089 | s->name = names; | |
8f39ba8e | 10090 | s->udata.p = NULL; |
4c45e5c9 JJ |
10091 | len = strlen ((*p->sym_ptr_ptr)->name); |
10092 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
10093 | names += len; | |
041de40d AM |
10094 | if (p->addend != 0) |
10095 | { | |
1d770845 | 10096 | char buf[30], *a; |
d324f6d6 | 10097 | |
041de40d AM |
10098 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
10099 | names += sizeof ("+0x") - 1; | |
1d770845 L |
10100 | bfd_sprintf_vma (abfd, buf, p->addend); |
10101 | for (a = buf; *a == '0'; ++a) | |
10102 | ; | |
10103 | len = strlen (a); | |
10104 | memcpy (names, a, len); | |
10105 | names += len; | |
041de40d | 10106 | } |
4c45e5c9 JJ |
10107 | memcpy (names, "@plt", sizeof ("@plt")); |
10108 | names += sizeof ("@plt"); | |
8f39ba8e | 10109 | ++s, ++n; |
4c45e5c9 JJ |
10110 | } |
10111 | ||
10112 | return n; | |
10113 | } | |
3d7f7666 | 10114 | |
3b22753a L |
10115 | /* It is only used by x86-64 so far. */ |
10116 | asection _bfd_elf_large_com_section | |
10117 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, | |
f592407e | 10118 | SEC_IS_COMMON, NULL, "LARGE_COMMON", 0); |
ecca9871 | 10119 | |
d1036acb | 10120 | void |
78245035 L |
10121 | _bfd_elf_post_process_headers (bfd * abfd, |
10122 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
d1036acb L |
10123 | { |
10124 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
10125 | ||
10126 | i_ehdrp = elf_elfheader (abfd); | |
10127 | ||
10128 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
10129 | |
10130 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 10131 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 10132 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 10133 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 10134 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 10135 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 10136 | } |
fcb93ecf PB |
10137 | |
10138 | ||
10139 | /* Return TRUE for ELF symbol types that represent functions. | |
10140 | This is the default version of this function, which is sufficient for | |
d8045f23 | 10141 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
10142 | |
10143 | bfd_boolean | |
10144 | _bfd_elf_is_function_type (unsigned int type) | |
10145 | { | |
d8045f23 NC |
10146 | return (type == STT_FUNC |
10147 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 10148 | } |
9f296da3 | 10149 | |
aef36ac1 AM |
10150 | /* If the ELF symbol SYM might be a function in SEC, return the |
10151 | function size and set *CODE_OFF to the function's entry point, | |
10152 | otherwise return zero. */ | |
9f296da3 | 10153 | |
aef36ac1 AM |
10154 | bfd_size_type |
10155 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
10156 | bfd_vma *code_off) | |
9f296da3 | 10157 | { |
aef36ac1 AM |
10158 | bfd_size_type size; |
10159 | ||
ff9e0f5b | 10160 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
10161 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
10162 | || sym->section != sec) | |
10163 | return 0; | |
ff9e0f5b | 10164 | |
ff9e0f5b | 10165 | *code_off = sym->value; |
aef36ac1 AM |
10166 | size = 0; |
10167 | if (!(sym->flags & BSF_SYNTHETIC)) | |
10168 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
10169 | if (size == 0) | |
10170 | size = 1; | |
10171 | return size; | |
9f296da3 | 10172 | } |