Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
abb3f6cc | 3 | Copyright 1993-2013 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 JJ |
296 | |
297 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
298 | in case the string table is not terminated. */ | |
3471d59d | 299 | if (shstrtabsize + 1 <= 1 |
a50b1753 | 300 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL |
c6c60d09 JJ |
301 | || bfd_seek (abfd, offset, SEEK_SET) != 0) |
302 | shstrtab = NULL; | |
303 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
304 | { | |
305 | if (bfd_get_error () != bfd_error_system_call) | |
306 | bfd_set_error (bfd_error_file_truncated); | |
307 | shstrtab = NULL; | |
3471d59d CC |
308 | /* Once we've failed to read it, make sure we don't keep |
309 | trying. Otherwise, we'll keep allocating space for | |
310 | the string table over and over. */ | |
311 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
312 | } |
313 | else | |
314 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 315 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 316 | } |
f075ee0c | 317 | return (char *) shstrtab; |
252b5132 RH |
318 | } |
319 | ||
320 | char * | |
217aa764 AM |
321 | bfd_elf_string_from_elf_section (bfd *abfd, |
322 | unsigned int shindex, | |
323 | unsigned int strindex) | |
252b5132 RH |
324 | { |
325 | Elf_Internal_Shdr *hdr; | |
326 | ||
327 | if (strindex == 0) | |
328 | return ""; | |
329 | ||
74f2e02b AM |
330 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
331 | return NULL; | |
332 | ||
252b5132 RH |
333 | hdr = elf_elfsections (abfd)[shindex]; |
334 | ||
335 | if (hdr->contents == NULL | |
336 | && bfd_elf_get_str_section (abfd, shindex) == NULL) | |
337 | return NULL; | |
338 | ||
339 | if (strindex >= hdr->sh_size) | |
340 | { | |
1b3a8575 | 341 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
252b5132 | 342 | (*_bfd_error_handler) |
d003868e AM |
343 | (_("%B: invalid string offset %u >= %lu for section `%s'"), |
344 | abfd, strindex, (unsigned long) hdr->sh_size, | |
1b3a8575 | 345 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 346 | ? ".shstrtab" |
1b3a8575 | 347 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 348 | return NULL; |
252b5132 RH |
349 | } |
350 | ||
351 | return ((char *) hdr->contents) + strindex; | |
352 | } | |
353 | ||
6cdc0ccc AM |
354 | /* Read and convert symbols to internal format. |
355 | SYMCOUNT specifies the number of symbols to read, starting from | |
356 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
357 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
358 | symbols, and symbol section index extensions, respectively. |
359 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
360 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
361 | |
362 | Elf_Internal_Sym * | |
217aa764 AM |
363 | bfd_elf_get_elf_syms (bfd *ibfd, |
364 | Elf_Internal_Shdr *symtab_hdr, | |
365 | size_t symcount, | |
366 | size_t symoffset, | |
367 | Elf_Internal_Sym *intsym_buf, | |
368 | void *extsym_buf, | |
369 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
370 | { |
371 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 372 | void *alloc_ext; |
df622259 | 373 | const bfd_byte *esym; |
6cdc0ccc AM |
374 | Elf_External_Sym_Shndx *alloc_extshndx; |
375 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 376 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
377 | Elf_Internal_Sym *isym; |
378 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 379 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
380 | size_t extsym_size; |
381 | bfd_size_type amt; | |
382 | file_ptr pos; | |
383 | ||
e44a2c9c AM |
384 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
385 | abort (); | |
386 | ||
6cdc0ccc AM |
387 | if (symcount == 0) |
388 | return intsym_buf; | |
389 | ||
390 | /* Normal syms might have section extension entries. */ | |
391 | shndx_hdr = NULL; | |
392 | if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr) | |
393 | shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr; | |
394 | ||
395 | /* Read the symbols. */ | |
396 | alloc_ext = NULL; | |
397 | alloc_extshndx = NULL; | |
4dd07732 | 398 | alloc_intsym = NULL; |
6cdc0ccc AM |
399 | bed = get_elf_backend_data (ibfd); |
400 | extsym_size = bed->s->sizeof_sym; | |
401 | amt = symcount * extsym_size; | |
402 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |
403 | if (extsym_buf == NULL) | |
404 | { | |
d0fb9a8d | 405 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
406 | extsym_buf = alloc_ext; |
407 | } | |
408 | if (extsym_buf == NULL | |
409 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
410 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
411 | { | |
412 | intsym_buf = NULL; | |
413 | goto out; | |
414 | } | |
415 | ||
416 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
417 | extshndx_buf = NULL; | |
418 | else | |
419 | { | |
420 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |
421 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |
422 | if (extshndx_buf == NULL) | |
423 | { | |
a50b1753 NC |
424 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
425 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); | |
6cdc0ccc AM |
426 | extshndx_buf = alloc_extshndx; |
427 | } | |
428 | if (extshndx_buf == NULL | |
429 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
430 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
431 | { | |
432 | intsym_buf = NULL; | |
433 | goto out; | |
434 | } | |
435 | } | |
436 | ||
437 | if (intsym_buf == NULL) | |
438 | { | |
a50b1753 NC |
439 | alloc_intsym = (Elf_Internal_Sym *) |
440 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); | |
4dd07732 | 441 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
442 | if (intsym_buf == NULL) |
443 | goto out; | |
444 | } | |
445 | ||
446 | /* Convert the symbols to internal form. */ | |
447 | isymend = intsym_buf + symcount; | |
a50b1753 NC |
448 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
449 | shndx = extshndx_buf; | |
6cdc0ccc AM |
450 | isym < isymend; |
451 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
452 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
453 | { | |
454 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
455 | (*_bfd_error_handler) (_("%B symbol number %lu references " | |
456 | "nonexistent SHT_SYMTAB_SHNDX section"), | |
457 | ibfd, (unsigned long) symoffset); | |
4dd07732 AM |
458 | if (alloc_intsym != NULL) |
459 | free (alloc_intsym); | |
8384fb8f AM |
460 | intsym_buf = NULL; |
461 | goto out; | |
462 | } | |
6cdc0ccc AM |
463 | |
464 | out: | |
465 | if (alloc_ext != NULL) | |
466 | free (alloc_ext); | |
467 | if (alloc_extshndx != NULL) | |
468 | free (alloc_extshndx); | |
469 | ||
470 | return intsym_buf; | |
471 | } | |
472 | ||
5cab59f6 AM |
473 | /* Look up a symbol name. */ |
474 | const char * | |
be8dd2ca AM |
475 | bfd_elf_sym_name (bfd *abfd, |
476 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
477 | Elf_Internal_Sym *isym, |
478 | asection *sym_sec) | |
5cab59f6 | 479 | { |
26c61ae5 | 480 | const char *name; |
5cab59f6 | 481 | unsigned int iname = isym->st_name; |
be8dd2ca | 482 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 483 | |
138f35cc JJ |
484 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
485 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 486 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
487 | { |
488 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
489 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
490 | } | |
491 | ||
26c61ae5 L |
492 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
493 | if (name == NULL) | |
494 | name = "(null)"; | |
495 | else if (sym_sec && *name == '\0') | |
496 | name = bfd_section_name (abfd, sym_sec); | |
497 | ||
498 | return name; | |
5cab59f6 AM |
499 | } |
500 | ||
dbb410c3 AM |
501 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
502 | sections. The first element is the flags, the rest are section | |
503 | pointers. */ | |
504 | ||
505 | typedef union elf_internal_group { | |
506 | Elf_Internal_Shdr *shdr; | |
507 | unsigned int flags; | |
508 | } Elf_Internal_Group; | |
509 | ||
b885599b AM |
510 | /* Return the name of the group signature symbol. Why isn't the |
511 | signature just a string? */ | |
512 | ||
513 | static const char * | |
217aa764 | 514 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 515 | { |
9dce4196 | 516 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
517 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
518 | Elf_External_Sym_Shndx eshndx; | |
519 | Elf_Internal_Sym isym; | |
b885599b | 520 | |
13792e9d L |
521 | /* First we need to ensure the symbol table is available. Make sure |
522 | that it is a symbol table section. */ | |
4fbb74a6 AM |
523 | if (ghdr->sh_link >= elf_numsections (abfd)) |
524 | return NULL; | |
13792e9d L |
525 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
526 | if (hdr->sh_type != SHT_SYMTAB | |
527 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
528 | return NULL; |
529 | ||
9dce4196 AM |
530 | /* Go read the symbol. */ |
531 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
532 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
533 | &isym, esym, &eshndx) == NULL) | |
b885599b | 534 | return NULL; |
9dce4196 | 535 | |
26c61ae5 | 536 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
537 | } |
538 | ||
dbb410c3 AM |
539 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
540 | ||
b34976b6 | 541 | static bfd_boolean |
217aa764 | 542 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
543 | { |
544 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
545 | ||
546 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
547 | is set to -1 if there are no SHT_GROUP sections. */ | |
548 | if (num_group == 0) | |
549 | { | |
550 | unsigned int i, shnum; | |
551 | ||
552 | /* First count the number of groups. If we have a SHT_GROUP | |
553 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 554 | shnum = elf_numsections (abfd); |
dbb410c3 | 555 | num_group = 0; |
08a40648 | 556 | |
44534af3 | 557 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 558 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 559 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
560 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
561 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 562 | |
dbb410c3 AM |
563 | for (i = 0; i < shnum; i++) |
564 | { | |
565 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 566 | |
44534af3 | 567 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
568 | num_group += 1; |
569 | } | |
570 | ||
571 | if (num_group == 0) | |
20dbb49d L |
572 | { |
573 | num_group = (unsigned) -1; | |
574 | elf_tdata (abfd)->num_group = num_group; | |
575 | } | |
576 | else | |
dbb410c3 AM |
577 | { |
578 | /* We keep a list of elf section headers for group sections, | |
579 | so we can find them quickly. */ | |
20dbb49d | 580 | bfd_size_type amt; |
d0fb9a8d | 581 | |
20dbb49d | 582 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 NC |
583 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
584 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 585 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 586 | return FALSE; |
dbb410c3 AM |
587 | |
588 | num_group = 0; | |
589 | for (i = 0; i < shnum; i++) | |
590 | { | |
591 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 592 | |
44534af3 | 593 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 594 | { |
973ffd63 | 595 | unsigned char *src; |
dbb410c3 AM |
596 | Elf_Internal_Group *dest; |
597 | ||
598 | /* Add to list of sections. */ | |
599 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
600 | num_group += 1; | |
601 | ||
602 | /* Read the raw contents. */ | |
603 | BFD_ASSERT (sizeof (*dest) >= 4); | |
604 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 NC |
605 | shdr->contents = (unsigned char *) |
606 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); | |
1783205a NC |
607 | /* PR binutils/4110: Handle corrupt group headers. */ |
608 | if (shdr->contents == NULL) | |
609 | { | |
610 | _bfd_error_handler | |
611 | (_("%B: Corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); | |
612 | bfd_set_error (bfd_error_bad_value); | |
613 | return FALSE; | |
614 | } | |
615 | ||
616 | memset (shdr->contents, 0, amt); | |
617 | ||
618 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
619 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
620 | != shdr->sh_size)) | |
b34976b6 | 621 | return FALSE; |
dbb410c3 AM |
622 | |
623 | /* Translate raw contents, a flag word followed by an | |
624 | array of elf section indices all in target byte order, | |
625 | to the flag word followed by an array of elf section | |
626 | pointers. */ | |
627 | src = shdr->contents + shdr->sh_size; | |
628 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
629 | while (1) | |
630 | { | |
631 | unsigned int idx; | |
632 | ||
633 | src -= 4; | |
634 | --dest; | |
635 | idx = H_GET_32 (abfd, src); | |
636 | if (src == shdr->contents) | |
637 | { | |
638 | dest->flags = idx; | |
b885599b AM |
639 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
640 | shdr->bfd_section->flags | |
641 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
642 | break; |
643 | } | |
644 | if (idx >= shnum) | |
645 | { | |
646 | ((*_bfd_error_handler) | |
d003868e | 647 | (_("%B: invalid SHT_GROUP entry"), abfd)); |
dbb410c3 AM |
648 | idx = 0; |
649 | } | |
650 | dest->shdr = elf_elfsections (abfd)[idx]; | |
651 | } | |
652 | } | |
653 | } | |
654 | } | |
655 | } | |
656 | ||
657 | if (num_group != (unsigned) -1) | |
658 | { | |
659 | unsigned int i; | |
660 | ||
661 | for (i = 0; i < num_group; i++) | |
662 | { | |
663 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
664 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
665 | unsigned int n_elt = shdr->sh_size / 4; | |
666 | ||
667 | /* Look through this group's sections to see if current | |
668 | section is a member. */ | |
669 | while (--n_elt != 0) | |
670 | if ((++idx)->shdr == hdr) | |
671 | { | |
e0e8c97f | 672 | asection *s = NULL; |
dbb410c3 AM |
673 | |
674 | /* We are a member of this group. Go looking through | |
675 | other members to see if any others are linked via | |
676 | next_in_group. */ | |
677 | idx = (Elf_Internal_Group *) shdr->contents; | |
678 | n_elt = shdr->sh_size / 4; | |
679 | while (--n_elt != 0) | |
680 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 681 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
682 | break; |
683 | if (n_elt != 0) | |
684 | { | |
dbb410c3 AM |
685 | /* Snarf the group name from other member, and |
686 | insert current section in circular list. */ | |
945906ff AM |
687 | elf_group_name (newsect) = elf_group_name (s); |
688 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
689 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
690 | } |
691 | else | |
692 | { | |
dbb410c3 AM |
693 | const char *gname; |
694 | ||
b885599b AM |
695 | gname = group_signature (abfd, shdr); |
696 | if (gname == NULL) | |
b34976b6 | 697 | return FALSE; |
945906ff | 698 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
699 | |
700 | /* Start a circular list with one element. */ | |
945906ff | 701 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 702 | } |
b885599b | 703 | |
9dce4196 AM |
704 | /* If the group section has been created, point to the |
705 | new member. */ | |
dbb410c3 | 706 | if (shdr->bfd_section != NULL) |
945906ff | 707 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 708 | |
dbb410c3 AM |
709 | i = num_group - 1; |
710 | break; | |
711 | } | |
712 | } | |
713 | } | |
714 | ||
945906ff | 715 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 716 | { |
d003868e AM |
717 | (*_bfd_error_handler) (_("%B: no group info for section %A"), |
718 | abfd, newsect); | |
dbb410c3 | 719 | } |
b34976b6 | 720 | return TRUE; |
dbb410c3 AM |
721 | } |
722 | ||
3d7f7666 | 723 | bfd_boolean |
dd863624 | 724 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
725 | { |
726 | unsigned int i; | |
727 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
728 | bfd_boolean result = TRUE; | |
dd863624 L |
729 | asection *s; |
730 | ||
731 | /* Process SHF_LINK_ORDER. */ | |
732 | for (s = abfd->sections; s != NULL; s = s->next) | |
733 | { | |
734 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
735 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
736 | { | |
737 | unsigned int elfsec = this_hdr->sh_link; | |
738 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
739 | not set the sh_link or sh_info fields. Hence we could | |
740 | get the situation where elfsec is 0. */ | |
741 | if (elfsec == 0) | |
742 | { | |
4fbb74a6 | 743 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
744 | if (bed->link_order_error_handler) |
745 | bed->link_order_error_handler | |
746 | (_("%B: warning: sh_link not set for section `%A'"), | |
747 | abfd, s); | |
748 | } | |
749 | else | |
750 | { | |
91d6fa6a | 751 | asection *linksec = NULL; |
25bbc984 | 752 | |
4fbb74a6 AM |
753 | if (elfsec < elf_numsections (abfd)) |
754 | { | |
755 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 756 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 757 | } |
25bbc984 L |
758 | |
759 | /* PR 1991, 2008: | |
760 | Some strip/objcopy may leave an incorrect value in | |
761 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 762 | if (linksec == NULL) |
25bbc984 L |
763 | { |
764 | (*_bfd_error_handler) | |
765 | (_("%B: sh_link [%d] in section `%A' is incorrect"), | |
766 | s->owner, s, elfsec); | |
767 | result = FALSE; | |
768 | } | |
769 | ||
91d6fa6a | 770 | elf_linked_to_section (s) = linksec; |
dd863624 L |
771 | } |
772 | } | |
773 | } | |
3d7f7666 | 774 | |
dd863624 | 775 | /* Process section groups. */ |
3d7f7666 L |
776 | if (num_group == (unsigned) -1) |
777 | return result; | |
778 | ||
779 | for (i = 0; i < num_group; i++) | |
780 | { | |
781 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
782 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
783 | unsigned int n_elt = shdr->sh_size / 4; | |
784 | ||
785 | while (--n_elt != 0) | |
786 | if ((++idx)->shdr->bfd_section) | |
787 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
788 | else if (idx->shdr->sh_type == SHT_RELA | |
789 | || idx->shdr->sh_type == SHT_REL) | |
790 | /* We won't include relocation sections in section groups in | |
791 | output object files. We adjust the group section size here | |
792 | so that relocatable link will work correctly when | |
793 | relocation sections are in section group in input object | |
794 | files. */ | |
795 | shdr->bfd_section->size -= 4; | |
796 | else | |
797 | { | |
798 | /* There are some unknown sections in the group. */ | |
799 | (*_bfd_error_handler) | |
d003868e AM |
800 | (_("%B: unknown [%d] section `%s' in group [%s]"), |
801 | abfd, | |
3d7f7666 | 802 | (unsigned int) idx->shdr->sh_type, |
1b3a8575 AM |
803 | bfd_elf_string_from_elf_section (abfd, |
804 | (elf_elfheader (abfd) | |
805 | ->e_shstrndx), | |
806 | idx->shdr->sh_name), | |
3d7f7666 L |
807 | shdr->bfd_section->name); |
808 | result = FALSE; | |
809 | } | |
810 | } | |
811 | return result; | |
812 | } | |
813 | ||
72adc230 AM |
814 | bfd_boolean |
815 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
816 | { | |
817 | return elf_next_in_group (sec) != NULL; | |
818 | } | |
819 | ||
252b5132 RH |
820 | /* Make a BFD section from an ELF section. We store a pointer to the |
821 | BFD section in the bfd_section field of the header. */ | |
822 | ||
b34976b6 | 823 | bfd_boolean |
217aa764 AM |
824 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
825 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
826 | const char *name, |
827 | int shindex) | |
252b5132 RH |
828 | { |
829 | asection *newsect; | |
830 | flagword flags; | |
9c5bfbb7 | 831 | const struct elf_backend_data *bed; |
252b5132 RH |
832 | |
833 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 834 | return TRUE; |
252b5132 RH |
835 | |
836 | newsect = bfd_make_section_anyway (abfd, name); | |
837 | if (newsect == NULL) | |
b34976b6 | 838 | return FALSE; |
252b5132 | 839 | |
1829f4b2 AM |
840 | hdr->bfd_section = newsect; |
841 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 842 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 843 | |
2f89ff8d L |
844 | /* Always use the real type/flags. */ |
845 | elf_section_type (newsect) = hdr->sh_type; | |
846 | elf_section_flags (newsect) = hdr->sh_flags; | |
847 | ||
252b5132 RH |
848 | newsect->filepos = hdr->sh_offset; |
849 | ||
850 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
851 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
852 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 853 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 854 | return FALSE; |
252b5132 RH |
855 | |
856 | flags = SEC_NO_FLAGS; | |
857 | if (hdr->sh_type != SHT_NOBITS) | |
858 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 859 | if (hdr->sh_type == SHT_GROUP) |
b3096250 | 860 | flags |= SEC_GROUP | SEC_EXCLUDE; |
252b5132 RH |
861 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
862 | { | |
863 | flags |= SEC_ALLOC; | |
864 | if (hdr->sh_type != SHT_NOBITS) | |
865 | flags |= SEC_LOAD; | |
866 | } | |
867 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
868 | flags |= SEC_READONLY; | |
869 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
870 | flags |= SEC_CODE; | |
871 | else if ((flags & SEC_LOAD) != 0) | |
872 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
873 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
874 | { | |
875 | flags |= SEC_MERGE; | |
876 | newsect->entsize = hdr->sh_entsize; | |
877 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
878 | flags |= SEC_STRINGS; | |
879 | } | |
dbb410c3 AM |
880 | if (hdr->sh_flags & SHF_GROUP) |
881 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 882 | return FALSE; |
13ae64f3 JJ |
883 | if ((hdr->sh_flags & SHF_TLS) != 0) |
884 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
885 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
886 | flags |= SEC_EXCLUDE; | |
252b5132 | 887 | |
3d2b39cf | 888 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 889 | { |
3d2b39cf L |
890 | /* The debugging sections appear to be recognized only by name, |
891 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
892 | if (name [0] == '.') |
893 | { | |
f073ced3 AM |
894 | const char *p; |
895 | int n; | |
896 | if (name[1] == 'd') | |
897 | p = ".debug", n = 6; | |
898 | else if (name[1] == 'g' && name[2] == 'n') | |
899 | p = ".gnu.linkonce.wi.", n = 17; | |
900 | else if (name[1] == 'g' && name[2] == 'd') | |
901 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
902 | else if (name[1] == 'l') | |
903 | p = ".line", n = 5; | |
904 | else if (name[1] == 's') | |
905 | p = ".stab", n = 5; | |
906 | else if (name[1] == 'z') | |
907 | p = ".zdebug", n = 7; | |
908 | else | |
909 | p = NULL, n = 0; | |
910 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
911 | flags |= SEC_DEBUGGING; |
912 | } | |
913 | } | |
252b5132 RH |
914 | |
915 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
916 | only link a single copy of the section. This is used to support | |
917 | g++. g++ will emit each template expansion in its own section. | |
918 | The symbols will be defined as weak, so that multiple definitions | |
919 | are permitted. The GNU linker extension is to actually discard | |
920 | all but one of the sections. */ | |
0112cd26 | 921 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 922 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
923 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
924 | ||
fa152c49 JW |
925 | bed = get_elf_backend_data (abfd); |
926 | if (bed->elf_backend_section_flags) | |
927 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 928 | return FALSE; |
fa152c49 | 929 | |
252b5132 | 930 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 931 | return FALSE; |
252b5132 | 932 | |
718175fa JK |
933 | /* We do not parse the PT_NOTE segments as we are interested even in the |
934 | separate debug info files which may have the segments offsets corrupted. | |
935 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
936 | if (hdr->sh_type == SHT_NOTE) | |
937 | { | |
baea7ef1 | 938 | bfd_byte *contents; |
718175fa | 939 | |
baea7ef1 | 940 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
941 | return FALSE; |
942 | ||
baea7ef1 | 943 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, -1); |
718175fa JK |
944 | free (contents); |
945 | } | |
946 | ||
252b5132 RH |
947 | if ((flags & SEC_ALLOC) != 0) |
948 | { | |
949 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
950 | unsigned int i, nload; |
951 | ||
952 | /* Some ELF linkers produce binaries with all the program header | |
953 | p_paddr fields zero. If we have such a binary with more than | |
954 | one PT_LOAD header, then leave the section lma equal to vma | |
955 | so that we don't create sections with overlapping lma. */ | |
956 | phdr = elf_tdata (abfd)->phdr; | |
957 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
958 | if (phdr->p_paddr != 0) | |
959 | break; | |
960 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
961 | ++nload; | |
962 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
963 | return TRUE; | |
252b5132 | 964 | |
252b5132 RH |
965 | phdr = elf_tdata (abfd)->phdr; |
966 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
967 | { | |
86b2281f AM |
968 | if (((phdr->p_type == PT_LOAD |
969 | && (hdr->sh_flags & SHF_TLS) == 0) | |
970 | || phdr->p_type == PT_TLS) | |
9a83a553 | 971 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 972 | { |
88967714 AM |
973 | if ((flags & SEC_LOAD) == 0) |
974 | newsect->lma = (phdr->p_paddr | |
975 | + hdr->sh_addr - phdr->p_vaddr); | |
976 | else | |
977 | /* We used to use the same adjustment for SEC_LOAD | |
978 | sections, but that doesn't work if the segment | |
979 | is packed with code from multiple VMAs. | |
980 | Instead we calculate the section LMA based on | |
981 | the segment LMA. It is assumed that the | |
982 | segment will contain sections with contiguous | |
983 | LMAs, even if the VMAs are not. */ | |
984 | newsect->lma = (phdr->p_paddr | |
985 | + hdr->sh_offset - phdr->p_offset); | |
986 | ||
987 | /* With contiguous segments, we can't tell from file | |
988 | offsets whether a section with zero size should | |
989 | be placed at the end of one segment or the | |
990 | beginning of the next. Decide based on vaddr. */ | |
991 | if (hdr->sh_addr >= phdr->p_vaddr | |
992 | && (hdr->sh_addr + hdr->sh_size | |
993 | <= phdr->p_vaddr + phdr->p_memsz)) | |
994 | break; | |
252b5132 RH |
995 | } |
996 | } | |
997 | } | |
998 | ||
4a114e3e L |
999 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1000 | .zdebug_*, after the section flags is set. */ | |
1001 | if ((flags & SEC_DEBUGGING) | |
1002 | && ((name[1] == 'd' && name[6] == '_') | |
1003 | || (name[1] == 'z' && name[7] == '_'))) | |
1004 | { | |
1005 | enum { nothing, compress, decompress } action = nothing; | |
4e011fb5 | 1006 | char *new_name; |
4a114e3e L |
1007 | |
1008 | if (bfd_is_section_compressed (abfd, newsect)) | |
1009 | { | |
1010 | /* Compressed section. Check if we should decompress. */ | |
1011 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1012 | action = decompress; | |
1013 | } | |
1014 | else | |
1015 | { | |
1016 | /* Normal section. Check if we should compress. */ | |
5a5ed5b0 | 1017 | if ((abfd->flags & BFD_COMPRESS) && newsect->size != 0) |
4a114e3e L |
1018 | action = compress; |
1019 | } | |
1020 | ||
4e011fb5 | 1021 | new_name = NULL; |
4a114e3e L |
1022 | switch (action) |
1023 | { | |
1024 | case nothing: | |
1025 | break; | |
1026 | case compress: | |
1027 | if (!bfd_init_section_compress_status (abfd, newsect)) | |
1028 | { | |
1029 | (*_bfd_error_handler) | |
bc823199 | 1030 | (_("%B: unable to initialize compress status for section %s"), |
4a114e3e L |
1031 | abfd, name); |
1032 | return FALSE; | |
1033 | } | |
4e011fb5 AM |
1034 | if (name[1] != 'z') |
1035 | { | |
1036 | unsigned int len = strlen (name); | |
1037 | ||
1038 | new_name = bfd_alloc (abfd, len + 2); | |
1039 | if (new_name == NULL) | |
1040 | return FALSE; | |
1041 | new_name[0] = '.'; | |
1042 | new_name[1] = 'z'; | |
1043 | memcpy (new_name + 2, name + 1, len); | |
1044 | } | |
4a114e3e L |
1045 | break; |
1046 | case decompress: | |
1047 | if (!bfd_init_section_decompress_status (abfd, newsect)) | |
1048 | { | |
1049 | (*_bfd_error_handler) | |
bc823199 | 1050 | (_("%B: unable to initialize decompress status for section %s"), |
4a114e3e L |
1051 | abfd, name); |
1052 | return FALSE; | |
1053 | } | |
4e011fb5 AM |
1054 | if (name[1] == 'z') |
1055 | { | |
1056 | unsigned int len = strlen (name); | |
1057 | ||
1058 | new_name = bfd_alloc (abfd, len); | |
1059 | if (new_name == NULL) | |
1060 | return FALSE; | |
1061 | new_name[0] = '.'; | |
1062 | memcpy (new_name + 1, name + 2, len - 1); | |
1063 | } | |
4a114e3e L |
1064 | break; |
1065 | } | |
4e011fb5 AM |
1066 | if (new_name != NULL) |
1067 | bfd_rename_section (abfd, newsect, new_name); | |
4a114e3e L |
1068 | } |
1069 | ||
b34976b6 | 1070 | return TRUE; |
252b5132 RH |
1071 | } |
1072 | ||
252b5132 RH |
1073 | const char *const bfd_elf_section_type_names[] = { |
1074 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
1075 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1076 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1077 | }; | |
1078 | ||
1049f94e | 1079 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1080 | output, and the reloc is against an external symbol, and nothing |
1081 | has given us any additional addend, the resulting reloc will also | |
1082 | be against the same symbol. In such a case, we don't want to | |
1083 | change anything about the way the reloc is handled, since it will | |
1084 | all be done at final link time. Rather than put special case code | |
1085 | into bfd_perform_relocation, all the reloc types use this howto | |
1086 | function. It just short circuits the reloc if producing | |
1049f94e | 1087 | relocatable output against an external symbol. */ |
252b5132 | 1088 | |
252b5132 | 1089 | bfd_reloc_status_type |
217aa764 AM |
1090 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1091 | arelent *reloc_entry, | |
1092 | asymbol *symbol, | |
1093 | void *data ATTRIBUTE_UNUSED, | |
1094 | asection *input_section, | |
1095 | bfd *output_bfd, | |
1096 | char **error_message ATTRIBUTE_UNUSED) | |
1097 | { | |
1098 | if (output_bfd != NULL | |
252b5132 RH |
1099 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1100 | && (! reloc_entry->howto->partial_inplace | |
1101 | || reloc_entry->addend == 0)) | |
1102 | { | |
1103 | reloc_entry->address += input_section->output_offset; | |
1104 | return bfd_reloc_ok; | |
1105 | } | |
1106 | ||
1107 | return bfd_reloc_continue; | |
1108 | } | |
1109 | \f | |
0ac4564e L |
1110 | /* Copy the program header and other data from one object module to |
1111 | another. */ | |
252b5132 | 1112 | |
b34976b6 | 1113 | bfd_boolean |
217aa764 | 1114 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 L |
1115 | { |
1116 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1117 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1118 | return TRUE; |
2d502050 | 1119 | |
57b828ef L |
1120 | if (!elf_flags_init (obfd)) |
1121 | { | |
1122 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1123 | elf_flags_init (obfd) = TRUE; | |
1124 | } | |
2d502050 | 1125 | |
0ac4564e | 1126 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1127 | |
1128 | /* Also copy the EI_OSABI field. */ | |
1129 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1130 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 JM |
1131 | |
1132 | /* Copy object attributes. */ | |
1133 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
b34976b6 | 1134 | return TRUE; |
2d502050 L |
1135 | } |
1136 | ||
cedc298e L |
1137 | static const char * |
1138 | get_segment_type (unsigned int p_type) | |
1139 | { | |
1140 | const char *pt; | |
1141 | switch (p_type) | |
1142 | { | |
1143 | case PT_NULL: pt = "NULL"; break; | |
1144 | case PT_LOAD: pt = "LOAD"; break; | |
1145 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1146 | case PT_INTERP: pt = "INTERP"; break; | |
1147 | case PT_NOTE: pt = "NOTE"; break; | |
1148 | case PT_SHLIB: pt = "SHLIB"; break; | |
1149 | case PT_PHDR: pt = "PHDR"; break; | |
1150 | case PT_TLS: pt = "TLS"; break; | |
1151 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1152 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1153 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1154 | default: pt = NULL; break; | |
1155 | } | |
1156 | return pt; | |
1157 | } | |
1158 | ||
f0b79d91 L |
1159 | /* Print out the program headers. */ |
1160 | ||
b34976b6 | 1161 | bfd_boolean |
217aa764 | 1162 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1163 | { |
a50b1753 | 1164 | FILE *f = (FILE *) farg; |
252b5132 RH |
1165 | Elf_Internal_Phdr *p; |
1166 | asection *s; | |
1167 | bfd_byte *dynbuf = NULL; | |
1168 | ||
1169 | p = elf_tdata (abfd)->phdr; | |
1170 | if (p != NULL) | |
1171 | { | |
1172 | unsigned int i, c; | |
1173 | ||
1174 | fprintf (f, _("\nProgram Header:\n")); | |
1175 | c = elf_elfheader (abfd)->e_phnum; | |
1176 | for (i = 0; i < c; i++, p++) | |
1177 | { | |
cedc298e | 1178 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1179 | char buf[20]; |
1180 | ||
cedc298e | 1181 | if (pt == NULL) |
252b5132 | 1182 | { |
cedc298e L |
1183 | sprintf (buf, "0x%lx", p->p_type); |
1184 | pt = buf; | |
252b5132 | 1185 | } |
dc810e39 | 1186 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1187 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1188 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1189 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1190 | fprintf (f, " paddr 0x"); |
60b89a18 | 1191 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1192 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1193 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1194 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1195 | fprintf (f, " memsz 0x"); |
60b89a18 | 1196 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1197 | fprintf (f, " flags %c%c%c", |
1198 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1199 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1200 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1201 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1202 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1203 | fprintf (f, "\n"); |
1204 | } | |
1205 | } | |
1206 | ||
1207 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1208 | if (s != NULL) | |
1209 | { | |
cb33740c | 1210 | unsigned int elfsec; |
dc810e39 | 1211 | unsigned long shlink; |
252b5132 RH |
1212 | bfd_byte *extdyn, *extdynend; |
1213 | size_t extdynsize; | |
217aa764 | 1214 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1215 | |
1216 | fprintf (f, _("\nDynamic Section:\n")); | |
1217 | ||
eea6121a | 1218 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1219 | goto error_return; |
1220 | ||
1221 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1222 | if (elfsec == SHN_BAD) |
252b5132 | 1223 | goto error_return; |
dc810e39 | 1224 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1225 | |
1226 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1227 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1228 | ||
1229 | extdyn = dynbuf; | |
eea6121a | 1230 | extdynend = extdyn + s->size; |
252b5132 RH |
1231 | for (; extdyn < extdynend; extdyn += extdynsize) |
1232 | { | |
1233 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1234 | const char *name = ""; |
252b5132 | 1235 | char ab[20]; |
b34976b6 | 1236 | bfd_boolean stringp; |
ad9563d6 | 1237 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1238 | |
217aa764 | 1239 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1240 | |
1241 | if (dyn.d_tag == DT_NULL) | |
1242 | break; | |
1243 | ||
b34976b6 | 1244 | stringp = FALSE; |
252b5132 RH |
1245 | switch (dyn.d_tag) |
1246 | { | |
1247 | default: | |
ad9563d6 CM |
1248 | if (bed->elf_backend_get_target_dtag) |
1249 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1250 | ||
1251 | if (!strcmp (name, "")) | |
1252 | { | |
1253 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
1254 | name = ab; | |
1255 | } | |
252b5132 RH |
1256 | break; |
1257 | ||
b34976b6 | 1258 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1259 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1260 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1261 | case DT_HASH: name = "HASH"; break; | |
1262 | case DT_STRTAB: name = "STRTAB"; break; | |
1263 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1264 | case DT_RELA: name = "RELA"; break; | |
1265 | case DT_RELASZ: name = "RELASZ"; break; | |
1266 | case DT_RELAENT: name = "RELAENT"; break; | |
1267 | case DT_STRSZ: name = "STRSZ"; break; | |
1268 | case DT_SYMENT: name = "SYMENT"; break; | |
1269 | case DT_INIT: name = "INIT"; break; | |
1270 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1271 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1272 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1273 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1274 | case DT_REL: name = "REL"; break; | |
1275 | case DT_RELSZ: name = "RELSZ"; break; | |
1276 | case DT_RELENT: name = "RELENT"; break; | |
1277 | case DT_PLTREL: name = "PLTREL"; break; | |
1278 | case DT_DEBUG: name = "DEBUG"; break; | |
1279 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1280 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1281 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1282 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1283 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1284 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1285 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1286 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1287 | case DT_FLAGS: name = "FLAGS"; break; |
1288 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1289 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1290 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1291 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1292 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1293 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1294 | case DT_FEATURE: name = "FEATURE"; break; | |
1295 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1296 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1297 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1298 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1299 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1300 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1301 | case DT_PLTPAD: name = "PLTPAD"; break; |
1302 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1303 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1304 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1305 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1306 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1307 | case DT_VERSYM: name = "VERSYM"; break; |
1308 | case DT_VERDEF: name = "VERDEF"; break; | |
1309 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1310 | case DT_VERNEED: name = "VERNEED"; break; | |
1311 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1312 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1313 | case DT_USED: name = "USED"; break; |
b34976b6 | 1314 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1315 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1316 | } |
1317 | ||
ad9563d6 | 1318 | fprintf (f, " %-20s ", name); |
252b5132 | 1319 | if (! stringp) |
a1f3c56e AN |
1320 | { |
1321 | fprintf (f, "0x"); | |
1322 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1323 | } | |
252b5132 RH |
1324 | else |
1325 | { | |
1326 | const char *string; | |
dc810e39 | 1327 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1328 | |
dc810e39 | 1329 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1330 | if (string == NULL) |
1331 | goto error_return; | |
1332 | fprintf (f, "%s", string); | |
1333 | } | |
1334 | fprintf (f, "\n"); | |
1335 | } | |
1336 | ||
1337 | free (dynbuf); | |
1338 | dynbuf = NULL; | |
1339 | } | |
1340 | ||
1341 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1342 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1343 | { | |
fc0e6df6 | 1344 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1345 | return FALSE; |
252b5132 RH |
1346 | } |
1347 | ||
1348 | if (elf_dynverdef (abfd) != 0) | |
1349 | { | |
1350 | Elf_Internal_Verdef *t; | |
1351 | ||
1352 | fprintf (f, _("\nVersion definitions:\n")); | |
1353 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1354 | { | |
1355 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1356 | t->vd_flags, t->vd_hash, |
1357 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1358 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1359 | { |
1360 | Elf_Internal_Verdaux *a; | |
1361 | ||
1362 | fprintf (f, "\t"); | |
1363 | for (a = t->vd_auxptr->vda_nextptr; | |
1364 | a != NULL; | |
1365 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1366 | fprintf (f, "%s ", |
1367 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1368 | fprintf (f, "\n"); |
1369 | } | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | if (elf_dynverref (abfd) != 0) | |
1374 | { | |
1375 | Elf_Internal_Verneed *t; | |
1376 | ||
1377 | fprintf (f, _("\nVersion References:\n")); | |
1378 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1379 | { | |
1380 | Elf_Internal_Vernaux *a; | |
1381 | ||
d0fb9a8d JJ |
1382 | fprintf (f, _(" required from %s:\n"), |
1383 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1384 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1385 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1386 | a->vna_flags, a->vna_other, |
1387 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1388 | } |
1389 | } | |
1390 | ||
b34976b6 | 1391 | return TRUE; |
252b5132 RH |
1392 | |
1393 | error_return: | |
1394 | if (dynbuf != NULL) | |
1395 | free (dynbuf); | |
b34976b6 | 1396 | return FALSE; |
252b5132 RH |
1397 | } |
1398 | ||
1399 | /* Display ELF-specific fields of a symbol. */ | |
1400 | ||
1401 | void | |
217aa764 AM |
1402 | bfd_elf_print_symbol (bfd *abfd, |
1403 | void *filep, | |
1404 | asymbol *symbol, | |
1405 | bfd_print_symbol_type how) | |
252b5132 | 1406 | { |
a50b1753 | 1407 | FILE *file = (FILE *) filep; |
252b5132 RH |
1408 | switch (how) |
1409 | { | |
1410 | case bfd_print_symbol_name: | |
1411 | fprintf (file, "%s", symbol->name); | |
1412 | break; | |
1413 | case bfd_print_symbol_more: | |
1414 | fprintf (file, "elf "); | |
60b89a18 | 1415 | bfd_fprintf_vma (abfd, file, symbol->value); |
0af1713e | 1416 | fprintf (file, " %lx", (unsigned long) symbol->flags); |
252b5132 RH |
1417 | break; |
1418 | case bfd_print_symbol_all: | |
1419 | { | |
4e8a9624 AM |
1420 | const char *section_name; |
1421 | const char *name = NULL; | |
9c5bfbb7 | 1422 | const struct elf_backend_data *bed; |
7a13edea | 1423 | unsigned char st_other; |
dbb410c3 | 1424 | bfd_vma val; |
c044fabd | 1425 | |
252b5132 | 1426 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1427 | |
1428 | bed = get_elf_backend_data (abfd); | |
1429 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1430 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1431 | |
1432 | if (name == NULL) | |
1433 | { | |
7ee38065 | 1434 | name = symbol->name; |
217aa764 | 1435 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1436 | } |
1437 | ||
252b5132 RH |
1438 | fprintf (file, " %s\t", section_name); |
1439 | /* Print the "other" value for a symbol. For common symbols, | |
1440 | we've already printed the size; now print the alignment. | |
1441 | For other symbols, we have no specified alignment, and | |
1442 | we've printed the address; now print the size. */ | |
dcf6c779 | 1443 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1444 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1445 | else | |
1446 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1447 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1448 | |
1449 | /* If we have version information, print it. */ | |
12bd6957 AM |
1450 | if (elf_dynversym (abfd) != 0 |
1451 | && (elf_dynverdef (abfd) != 0 | |
1452 | || elf_dynverref (abfd) != 0)) | |
252b5132 RH |
1453 | { |
1454 | unsigned int vernum; | |
1455 | const char *version_string; | |
1456 | ||
1457 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION; | |
1458 | ||
1459 | if (vernum == 0) | |
1460 | version_string = ""; | |
1461 | else if (vernum == 1) | |
1462 | version_string = "Base"; | |
1463 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1464 | version_string = | |
1465 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1466 | else | |
1467 | { | |
1468 | Elf_Internal_Verneed *t; | |
1469 | ||
1470 | version_string = ""; | |
1471 | for (t = elf_tdata (abfd)->verref; | |
1472 | t != NULL; | |
1473 | t = t->vn_nextref) | |
1474 | { | |
1475 | Elf_Internal_Vernaux *a; | |
1476 | ||
1477 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1478 | { | |
1479 | if (a->vna_other == vernum) | |
1480 | { | |
1481 | version_string = a->vna_nodename; | |
1482 | break; | |
1483 | } | |
1484 | } | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0) | |
1489 | fprintf (file, " %-11s", version_string); | |
1490 | else | |
1491 | { | |
1492 | int i; | |
1493 | ||
1494 | fprintf (file, " (%s)", version_string); | |
1495 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1496 | putc (' ', file); | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1501 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1502 | |
7a13edea NC |
1503 | switch (st_other) |
1504 | { | |
1505 | case 0: break; | |
1506 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1507 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1508 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1509 | default: | |
1510 | /* Some other non-defined flags are also present, so print | |
1511 | everything hex. */ | |
1512 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1513 | } | |
252b5132 | 1514 | |
587ff49e | 1515 | fprintf (file, " %s", name); |
252b5132 RH |
1516 | } |
1517 | break; | |
1518 | } | |
1519 | } | |
252b5132 | 1520 | |
252b5132 RH |
1521 | /* Allocate an ELF string table--force the first byte to be zero. */ |
1522 | ||
1523 | struct bfd_strtab_hash * | |
217aa764 | 1524 | _bfd_elf_stringtab_init (void) |
252b5132 RH |
1525 | { |
1526 | struct bfd_strtab_hash *ret; | |
1527 | ||
1528 | ret = _bfd_stringtab_init (); | |
1529 | if (ret != NULL) | |
1530 | { | |
1531 | bfd_size_type loc; | |
1532 | ||
b34976b6 | 1533 | loc = _bfd_stringtab_add (ret, "", TRUE, FALSE); |
252b5132 RH |
1534 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1); |
1535 | if (loc == (bfd_size_type) -1) | |
1536 | { | |
1537 | _bfd_stringtab_free (ret); | |
1538 | ret = NULL; | |
1539 | } | |
1540 | } | |
1541 | return ret; | |
1542 | } | |
1543 | \f | |
1544 | /* ELF .o/exec file reading */ | |
1545 | ||
c044fabd | 1546 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1547 | |
b34976b6 | 1548 | bfd_boolean |
217aa764 | 1549 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1550 | { |
4fbb74a6 AM |
1551 | Elf_Internal_Shdr *hdr; |
1552 | Elf_Internal_Ehdr *ehdr; | |
1553 | const struct elf_backend_data *bed; | |
90937f86 | 1554 | const char *name; |
252b5132 | 1555 | |
4fbb74a6 AM |
1556 | if (shindex >= elf_numsections (abfd)) |
1557 | return FALSE; | |
1558 | ||
1559 | hdr = elf_elfsections (abfd)[shindex]; | |
1560 | ehdr = elf_elfheader (abfd); | |
1561 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 1562 | hdr->sh_name); |
933d961a JJ |
1563 | if (name == NULL) |
1564 | return FALSE; | |
252b5132 | 1565 | |
4fbb74a6 | 1566 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
1567 | switch (hdr->sh_type) |
1568 | { | |
1569 | case SHT_NULL: | |
1570 | /* Inactive section. Throw it away. */ | |
b34976b6 | 1571 | return TRUE; |
252b5132 RH |
1572 | |
1573 | case SHT_PROGBITS: /* Normal section with contents. */ | |
252b5132 RH |
1574 | case SHT_NOBITS: /* .bss section. */ |
1575 | case SHT_HASH: /* .hash section. */ | |
1576 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1577 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1578 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1579 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 1580 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 1581 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
6dc132d9 | 1582 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 | 1583 | |
797fc050 | 1584 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 1585 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 1586 | return FALSE; |
cfcac11d NC |
1587 | if (hdr->sh_link > elf_numsections (abfd)) |
1588 | { | |
caa83f8b | 1589 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
1590 | field set to SHN_BEFORE or SHN_AFTER. */ |
1591 | switch (bfd_get_arch (abfd)) | |
1592 | { | |
caa83f8b | 1593 | case bfd_arch_i386: |
cfcac11d NC |
1594 | case bfd_arch_sparc: |
1595 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
1596 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
1597 | break; | |
1598 | /* Otherwise fall through. */ | |
1599 | default: | |
1600 | return FALSE; | |
1601 | } | |
1602 | } | |
1603 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
8e0ed13f | 1604 | return FALSE; |
cfcac11d | 1605 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
1606 | { |
1607 | Elf_Internal_Shdr *dynsymhdr; | |
1608 | ||
1609 | /* The shared libraries distributed with hpux11 have a bogus | |
1610 | sh_link field for the ".dynamic" section. Find the | |
1611 | string table for the ".dynsym" section instead. */ | |
1612 | if (elf_dynsymtab (abfd) != 0) | |
1613 | { | |
1614 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
1615 | hdr->sh_link = dynsymhdr->sh_link; | |
1616 | } | |
1617 | else | |
1618 | { | |
1619 | unsigned int i, num_sec; | |
1620 | ||
1621 | num_sec = elf_numsections (abfd); | |
1622 | for (i = 1; i < num_sec; i++) | |
1623 | { | |
1624 | dynsymhdr = elf_elfsections (abfd)[i]; | |
1625 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
1626 | { | |
1627 | hdr->sh_link = dynsymhdr->sh_link; | |
1628 | break; | |
1629 | } | |
1630 | } | |
1631 | } | |
1632 | } | |
1633 | break; | |
1634 | ||
252b5132 RH |
1635 | case SHT_SYMTAB: /* A symbol table */ |
1636 | if (elf_onesymtab (abfd) == shindex) | |
b34976b6 | 1637 | return TRUE; |
252b5132 | 1638 | |
a50b2160 JJ |
1639 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
1640 | return FALSE; | |
3337c1e5 | 1641 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
1642 | { |
1643 | if (hdr->sh_size != 0) | |
1644 | return FALSE; | |
1645 | /* Some assemblers erroneously set sh_info to one with a | |
1646 | zero sh_size. ld sees this as a global symbol count | |
1647 | of (unsigned) -1. Fix it here. */ | |
1648 | hdr->sh_info = 0; | |
1649 | return TRUE; | |
1650 | } | |
252b5132 RH |
1651 | BFD_ASSERT (elf_onesymtab (abfd) == 0); |
1652 | elf_onesymtab (abfd) = shindex; | |
1653 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1654 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1655 | abfd->flags |= HAS_SYMS; | |
1656 | ||
1657 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
1658 | SHF_ALLOC is set, and this is a shared object, then we also |
1659 | treat this section as a BFD section. We can not base the | |
1660 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1661 | set in a relocatable object file, which would confuse the | |
1662 | linker. */ | |
252b5132 RH |
1663 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
1664 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
1665 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1666 | shindex)) | |
b34976b6 | 1667 | return FALSE; |
252b5132 | 1668 | |
1b3a8575 AM |
1669 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
1670 | can't read symbols without that section loaded as well. It | |
1671 | is most likely specified by the next section header. */ | |
1672 | if (elf_elfsections (abfd)[elf_symtab_shndx (abfd)]->sh_link != shindex) | |
1673 | { | |
1674 | unsigned int i, num_sec; | |
1675 | ||
1676 | num_sec = elf_numsections (abfd); | |
1677 | for (i = shindex + 1; i < num_sec; i++) | |
1678 | { | |
1679 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1680 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1681 | && hdr2->sh_link == shindex) | |
1682 | break; | |
1683 | } | |
1684 | if (i == num_sec) | |
1685 | for (i = 1; i < shindex; i++) | |
1686 | { | |
1687 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1688 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1689 | && hdr2->sh_link == shindex) | |
1690 | break; | |
1691 | } | |
1692 | if (i != shindex) | |
1693 | return bfd_section_from_shdr (abfd, i); | |
1694 | } | |
b34976b6 | 1695 | return TRUE; |
252b5132 RH |
1696 | |
1697 | case SHT_DYNSYM: /* A dynamic symbol table */ | |
1698 | if (elf_dynsymtab (abfd) == shindex) | |
b34976b6 | 1699 | return TRUE; |
252b5132 | 1700 | |
a50b2160 JJ |
1701 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
1702 | return FALSE; | |
eee3b786 AM |
1703 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
1704 | { | |
1705 | if (hdr->sh_size != 0) | |
1706 | return FALSE; | |
1707 | /* Some linkers erroneously set sh_info to one with a | |
1708 | zero sh_size. ld sees this as a global symbol count | |
1709 | of (unsigned) -1. Fix it here. */ | |
1710 | hdr->sh_info = 0; | |
1711 | return TRUE; | |
1712 | } | |
252b5132 RH |
1713 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); |
1714 | elf_dynsymtab (abfd) = shindex; | |
1715 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1716 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1717 | abfd->flags |= HAS_SYMS; | |
1718 | ||
1719 | /* Besides being a symbol table, we also treat this as a regular | |
1720 | section, so that objcopy can handle it. */ | |
6dc132d9 | 1721 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 | 1722 | |
9ad5cbcf AM |
1723 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */ |
1724 | if (elf_symtab_shndx (abfd) == shindex) | |
b34976b6 | 1725 | return TRUE; |
9ad5cbcf | 1726 | |
1b3a8575 | 1727 | BFD_ASSERT (elf_symtab_shndx (abfd) == 0); |
9ad5cbcf AM |
1728 | elf_symtab_shndx (abfd) = shindex; |
1729 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1730 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
b34976b6 | 1731 | return TRUE; |
9ad5cbcf | 1732 | |
252b5132 RH |
1733 | case SHT_STRTAB: /* A string table */ |
1734 | if (hdr->bfd_section != NULL) | |
b34976b6 | 1735 | return TRUE; |
252b5132 RH |
1736 | if (ehdr->e_shstrndx == shindex) |
1737 | { | |
1738 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1739 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
b34976b6 | 1740 | return TRUE; |
252b5132 | 1741 | } |
1b3a8575 AM |
1742 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
1743 | { | |
1744 | symtab_strtab: | |
1745 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1746 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
1747 | return TRUE; | |
1748 | } | |
1749 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) | |
1750 | { | |
1751 | dynsymtab_strtab: | |
1752 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1753 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
1754 | elf_elfsections (abfd)[shindex] = hdr; | |
1755 | /* We also treat this as a regular section, so that objcopy | |
1756 | can handle it. */ | |
6dc132d9 L |
1757 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1758 | shindex); | |
1b3a8575 | 1759 | } |
252b5132 | 1760 | |
1b3a8575 AM |
1761 | /* If the string table isn't one of the above, then treat it as a |
1762 | regular section. We need to scan all the headers to be sure, | |
1763 | just in case this strtab section appeared before the above. */ | |
1764 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
1765 | { | |
1766 | unsigned int i, num_sec; | |
252b5132 | 1767 | |
1b3a8575 AM |
1768 | num_sec = elf_numsections (abfd); |
1769 | for (i = 1; i < num_sec; i++) | |
1770 | { | |
1771 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1772 | if (hdr2->sh_link == shindex) | |
1773 | { | |
933d961a JJ |
1774 | /* Prevent endless recursion on broken objects. */ |
1775 | if (i == shindex) | |
1776 | return FALSE; | |
1b3a8575 AM |
1777 | if (! bfd_section_from_shdr (abfd, i)) |
1778 | return FALSE; | |
1779 | if (elf_onesymtab (abfd) == i) | |
1780 | goto symtab_strtab; | |
1781 | if (elf_dynsymtab (abfd) == i) | |
1782 | goto dynsymtab_strtab; | |
1783 | } | |
1784 | } | |
1785 | } | |
6dc132d9 | 1786 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1787 | |
1788 | case SHT_REL: | |
1789 | case SHT_RELA: | |
1790 | /* *These* do a lot of work -- but build no sections! */ | |
1791 | { | |
1792 | asection *target_sect; | |
d4730f92 | 1793 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 1794 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 BS |
1795 | struct bfd_elf_section_data *esdt; |
1796 | bfd_size_type amt; | |
252b5132 | 1797 | |
aa2ca951 JJ |
1798 | if (hdr->sh_entsize |
1799 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 JJ |
1800 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
1801 | return FALSE; | |
1802 | ||
03ae5f59 | 1803 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 1804 | if (hdr->sh_link >= num_sec) |
03ae5f59 ILT |
1805 | { |
1806 | ((*_bfd_error_handler) | |
d003868e AM |
1807 | (_("%B: invalid link %lu for reloc section %s (index %u)"), |
1808 | abfd, hdr->sh_link, name, shindex)); | |
6dc132d9 L |
1809 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1810 | shindex); | |
03ae5f59 ILT |
1811 | } |
1812 | ||
252b5132 RH |
1813 | /* For some incomprehensible reason Oracle distributes |
1814 | libraries for Solaris in which some of the objects have | |
1815 | bogus sh_link fields. It would be nice if we could just | |
1816 | reject them, but, unfortunately, some people need to use | |
1817 | them. We scan through the section headers; if we find only | |
1818 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
1819 | to it. I hope this doesn't break anything. |
1820 | ||
1821 | Don't do it on executable nor shared library. */ | |
1822 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
1823 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
1824 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
1825 | { | |
9ad5cbcf | 1826 | unsigned int scan; |
252b5132 RH |
1827 | int found; |
1828 | ||
1829 | found = 0; | |
9ad5cbcf | 1830 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
1831 | { |
1832 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
1833 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
1834 | { | |
1835 | if (found != 0) | |
1836 | { | |
1837 | found = 0; | |
1838 | break; | |
1839 | } | |
1840 | found = scan; | |
1841 | } | |
1842 | } | |
1843 | if (found != 0) | |
1844 | hdr->sh_link = found; | |
1845 | } | |
1846 | ||
1847 | /* Get the symbol table. */ | |
1b3a8575 AM |
1848 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
1849 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 1850 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
b34976b6 | 1851 | return FALSE; |
252b5132 RH |
1852 | |
1853 | /* If this reloc section does not use the main symbol table we | |
1854 | don't treat it as a reloc section. BFD can't adequately | |
1855 | represent such a section, so at least for now, we don't | |
c044fabd | 1856 | try. We just present it as a normal section. We also |
60bcf0fa | 1857 | can't use it as a reloc section if it points to the null |
83b89087 L |
1858 | section, an invalid section, another reloc section, or its |
1859 | sh_link points to the null section. */ | |
185ef66d | 1860 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 1861 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 1862 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
1863 | || hdr->sh_info >= num_sec |
1864 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
1865 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
6dc132d9 L |
1866 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1867 | shindex); | |
252b5132 RH |
1868 | |
1869 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
b34976b6 | 1870 | return FALSE; |
252b5132 RH |
1871 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
1872 | if (target_sect == NULL) | |
b34976b6 | 1873 | return FALSE; |
252b5132 | 1874 | |
d4730f92 BS |
1875 | esdt = elf_section_data (target_sect); |
1876 | if (hdr->sh_type == SHT_RELA) | |
1877 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 1878 | else |
d4730f92 BS |
1879 | p_hdr = &esdt->rel.hdr; |
1880 | ||
1881 | BFD_ASSERT (*p_hdr == NULL); | |
1882 | amt = sizeof (*hdr2); | |
1883 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
1884 | if (hdr2 == NULL) | |
1885 | return FALSE; | |
252b5132 | 1886 | *hdr2 = *hdr; |
d4730f92 | 1887 | *p_hdr = hdr2; |
252b5132 | 1888 | elf_elfsections (abfd)[shindex] = hdr2; |
d9bc7a44 | 1889 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
1890 | target_sect->flags |= SEC_RELOC; |
1891 | target_sect->relocation = NULL; | |
1892 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
1893 | /* In the section to which the relocations apply, mark whether |
1894 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 1895 | if (hdr->sh_size != 0) |
d4730f92 BS |
1896 | { |
1897 | if (hdr->sh_type == SHT_RELA) | |
1898 | target_sect->use_rela_p = 1; | |
1899 | } | |
252b5132 | 1900 | abfd->flags |= HAS_RELOC; |
b34976b6 | 1901 | return TRUE; |
252b5132 | 1902 | } |
252b5132 RH |
1903 | |
1904 | case SHT_GNU_verdef: | |
1905 | elf_dynverdef (abfd) = shindex; | |
1906 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
6dc132d9 | 1907 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1908 | |
1909 | case SHT_GNU_versym: | |
a50b2160 JJ |
1910 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
1911 | return FALSE; | |
252b5132 RH |
1912 | elf_dynversym (abfd) = shindex; |
1913 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
6dc132d9 | 1914 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1915 | |
1916 | case SHT_GNU_verneed: | |
1917 | elf_dynverref (abfd) = shindex; | |
1918 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
6dc132d9 | 1919 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1920 | |
1921 | case SHT_SHLIB: | |
b34976b6 | 1922 | return TRUE; |
252b5132 | 1923 | |
dbb410c3 | 1924 | case SHT_GROUP: |
44534af3 | 1925 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
a50b2160 | 1926 | return FALSE; |
6dc132d9 | 1927 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 1928 | return FALSE; |
dbb410c3 AM |
1929 | if (hdr->contents != NULL) |
1930 | { | |
1931 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
1783205a | 1932 | unsigned int n_elt = hdr->sh_size / GRP_ENTRY_SIZE; |
dbb410c3 AM |
1933 | asection *s; |
1934 | ||
b885599b AM |
1935 | if (idx->flags & GRP_COMDAT) |
1936 | hdr->bfd_section->flags | |
1937 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
1938 | ||
45c5e9ed L |
1939 | /* We try to keep the same section order as it comes in. */ |
1940 | idx += n_elt; | |
dbb410c3 | 1941 | while (--n_elt != 0) |
1783205a NC |
1942 | { |
1943 | --idx; | |
1944 | ||
1945 | if (idx->shdr != NULL | |
1946 | && (s = idx->shdr->bfd_section) != NULL | |
1947 | && elf_next_in_group (s) != NULL) | |
1948 | { | |
1949 | elf_next_in_group (hdr->bfd_section) = s; | |
1950 | break; | |
1951 | } | |
1952 | } | |
dbb410c3 AM |
1953 | } |
1954 | break; | |
1955 | ||
252b5132 | 1956 | default: |
104d59d1 JM |
1957 | /* Possibly an attributes section. */ |
1958 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
1959 | || hdr->sh_type == bed->obj_attrs_section_type) | |
1960 | { | |
1961 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
1962 | return FALSE; | |
1963 | _bfd_elf_parse_attributes (abfd, hdr); | |
1964 | return TRUE; | |
1965 | } | |
1966 | ||
252b5132 | 1967 | /* Check for any processor-specific section types. */ |
3eb70a79 L |
1968 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
1969 | return TRUE; | |
1970 | ||
1971 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
1972 | { | |
1973 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
1974 | /* FIXME: How to properly handle allocated section reserved | |
1975 | for applications? */ | |
1976 | (*_bfd_error_handler) | |
1977 | (_("%B: don't know how to handle allocated, application " | |
1978 | "specific section `%s' [0x%8x]"), | |
1979 | abfd, name, hdr->sh_type); | |
1980 | else | |
1981 | /* Allow sections reserved for applications. */ | |
1982 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
1983 | shindex); | |
1984 | } | |
1985 | else if (hdr->sh_type >= SHT_LOPROC | |
1986 | && hdr->sh_type <= SHT_HIPROC) | |
1987 | /* FIXME: We should handle this section. */ | |
1988 | (*_bfd_error_handler) | |
1989 | (_("%B: don't know how to handle processor specific section " | |
1990 | "`%s' [0x%8x]"), | |
1991 | abfd, name, hdr->sh_type); | |
1992 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) | |
ff15b240 NC |
1993 | { |
1994 | /* Unrecognised OS-specific sections. */ | |
1995 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
1996 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 1997 | required to correctly process the section and the file should |
ff15b240 NC |
1998 | be rejected with an error message. */ |
1999 | (*_bfd_error_handler) | |
2000 | (_("%B: don't know how to handle OS specific section " | |
2001 | "`%s' [0x%8x]"), | |
2002 | abfd, name, hdr->sh_type); | |
2003 | else | |
2004 | /* Otherwise it should be processed. */ | |
2005 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2006 | } | |
3eb70a79 L |
2007 | else |
2008 | /* FIXME: We should handle this section. */ | |
2009 | (*_bfd_error_handler) | |
2010 | (_("%B: don't know how to handle section `%s' [0x%8x]"), | |
2011 | abfd, name, hdr->sh_type); | |
2012 | ||
2013 | return FALSE; | |
252b5132 RH |
2014 | } |
2015 | ||
b34976b6 | 2016 | return TRUE; |
252b5132 RH |
2017 | } |
2018 | ||
87d72d41 | 2019 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2020 | |
87d72d41 AM |
2021 | Elf_Internal_Sym * |
2022 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2023 | bfd *abfd, | |
2024 | unsigned long r_symndx) | |
ec338859 | 2025 | { |
ec338859 AM |
2026 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2027 | ||
a5d1b3b5 AM |
2028 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2029 | { | |
2030 | Elf_Internal_Shdr *symtab_hdr; | |
2031 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2032 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2033 | |
a5d1b3b5 AM |
2034 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2035 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2036 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2037 | return NULL; |
9ad5cbcf | 2038 | |
a5d1b3b5 AM |
2039 | if (cache->abfd != abfd) |
2040 | { | |
2041 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2042 | cache->abfd = abfd; | |
2043 | } | |
2044 | cache->indx[ent] = r_symndx; | |
ec338859 | 2045 | } |
a5d1b3b5 | 2046 | |
87d72d41 | 2047 | return &cache->sym[ent]; |
ec338859 AM |
2048 | } |
2049 | ||
252b5132 RH |
2050 | /* Given an ELF section number, retrieve the corresponding BFD |
2051 | section. */ | |
2052 | ||
2053 | asection * | |
91d6fa6a | 2054 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2055 | { |
91d6fa6a | 2056 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2057 | return NULL; |
91d6fa6a | 2058 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2059 | } |
2060 | ||
b35d266b | 2061 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2062 | { |
0112cd26 NC |
2063 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2064 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2065 | }; |
2066 | ||
b35d266b | 2067 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2068 | { |
0112cd26 NC |
2069 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
2070 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2071 | }; |
2072 | ||
b35d266b | 2073 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2074 | { |
0112cd26 NC |
2075 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2076 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2077 | /* There are more DWARF sections than these, but they needn't be added here |
2078 | unless you have to cope with broken compilers that don't emit section | |
2079 | attributes or you want to help the user writing assembler. */ | |
0112cd26 NC |
2080 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2081 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2082 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2083 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2084 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2085 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, | |
2086 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2087 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2088 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2089 | }; |
2090 | ||
b35d266b | 2091 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2092 | { |
0112cd26 NC |
2093 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2094 | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2095 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2096 | }; |
2097 | ||
b35d266b | 2098 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2099 | { |
0112cd26 | 2100 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
68efed41 | 2101 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
0112cd26 NC |
2102 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2103 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
2104 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, | |
2105 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
2106 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, | |
2107 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2108 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2109 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2110 | }; |
2111 | ||
b35d266b | 2112 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2113 | { |
0112cd26 NC |
2114 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2115 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2116 | }; |
2117 | ||
b35d266b | 2118 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2119 | { |
0112cd26 NC |
2120 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2121 | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2122 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, | |
2123 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2124 | }; |
2125 | ||
b35d266b | 2126 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2127 | { |
0112cd26 NC |
2128 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
2129 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2130 | }; |
2131 | ||
b35d266b | 2132 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2133 | { |
0112cd26 NC |
2134 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
2135 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, | |
2136 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2137 | }; |
2138 | ||
b35d266b | 2139 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2140 | { |
0112cd26 NC |
2141 | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
2142 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2143 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2144 | }; |
2145 | ||
b35d266b | 2146 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2147 | { |
0112cd26 NC |
2148 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2149 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2150 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, | |
2151 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2152 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2153 | }; |
2154 | ||
b35d266b | 2155 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2156 | { |
0112cd26 NC |
2157 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2158 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2159 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2160 | /* See struct bfd_elf_special_section declaration for the semantics of |
2161 | this special case where .prefix_length != strlen (.prefix). */ | |
2162 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
0112cd26 | 2163 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2164 | }; |
2165 | ||
b35d266b | 2166 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2167 | { |
0112cd26 NC |
2168 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2169 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2170 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2171 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2172 | }; |
2173 | ||
1b315056 CS |
2174 | static const struct bfd_elf_special_section special_sections_z[] = |
2175 | { | |
2176 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, | |
2177 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
2178 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2179 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2180 | { NULL, 0, 0, 0, 0 } | |
2181 | }; | |
2182 | ||
e4c93b56 | 2183 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2184 | { |
7f4d3958 | 2185 | special_sections_b, /* 'b' */ |
98ece1b3 | 2186 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2187 | special_sections_d, /* 'd' */ |
2188 | NULL, /* 'e' */ | |
2189 | special_sections_f, /* 'f' */ | |
2190 | special_sections_g, /* 'g' */ | |
2191 | special_sections_h, /* 'h' */ | |
2192 | special_sections_i, /* 'i' */ | |
2193 | NULL, /* 'j' */ | |
2194 | NULL, /* 'k' */ | |
2195 | special_sections_l, /* 'l' */ | |
2196 | NULL, /* 'm' */ | |
2197 | special_sections_n, /* 'n' */ | |
2198 | NULL, /* 'o' */ | |
2199 | special_sections_p, /* 'p' */ | |
2200 | NULL, /* 'q' */ | |
2201 | special_sections_r, /* 'r' */ | |
2202 | special_sections_s, /* 's' */ | |
2203 | special_sections_t, /* 't' */ | |
1b315056 CS |
2204 | NULL, /* 'u' */ |
2205 | NULL, /* 'v' */ | |
2206 | NULL, /* 'w' */ | |
2207 | NULL, /* 'x' */ | |
2208 | NULL, /* 'y' */ | |
2209 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2210 | }; |
2211 | ||
551b43fd AM |
2212 | const struct bfd_elf_special_section * |
2213 | _bfd_elf_get_special_section (const char *name, | |
2214 | const struct bfd_elf_special_section *spec, | |
2215 | unsigned int rela) | |
2f89ff8d L |
2216 | { |
2217 | int i; | |
7f4d3958 | 2218 | int len; |
7f4d3958 | 2219 | |
551b43fd | 2220 | len = strlen (name); |
7f4d3958 | 2221 | |
551b43fd | 2222 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2223 | { |
2224 | int suffix_len; | |
551b43fd | 2225 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2226 | |
2227 | if (len < prefix_len) | |
2228 | continue; | |
551b43fd | 2229 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2230 | continue; |
2231 | ||
551b43fd | 2232 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2233 | if (suffix_len <= 0) |
2234 | { | |
2235 | if (name[prefix_len] != 0) | |
2236 | { | |
2237 | if (suffix_len == 0) | |
2238 | continue; | |
2239 | if (name[prefix_len] != '.' | |
2240 | && (suffix_len == -2 | |
551b43fd | 2241 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2242 | continue; |
2243 | } | |
2244 | } | |
2245 | else | |
2246 | { | |
2247 | if (len < prefix_len + suffix_len) | |
2248 | continue; | |
2249 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2250 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2251 | suffix_len) != 0) |
2252 | continue; | |
2253 | } | |
551b43fd | 2254 | return &spec[i]; |
7dcb9820 | 2255 | } |
2f89ff8d L |
2256 | |
2257 | return NULL; | |
2258 | } | |
2259 | ||
7dcb9820 | 2260 | const struct bfd_elf_special_section * |
29ef7005 | 2261 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2262 | { |
551b43fd AM |
2263 | int i; |
2264 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2265 | const struct elf_backend_data *bed; |
2f89ff8d L |
2266 | |
2267 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2268 | if (sec->name == NULL) |
2269 | return NULL; | |
2f89ff8d | 2270 | |
29ef7005 L |
2271 | bed = get_elf_backend_data (abfd); |
2272 | spec = bed->special_sections; | |
2273 | if (spec) | |
2274 | { | |
2275 | spec = _bfd_elf_get_special_section (sec->name, | |
2276 | bed->special_sections, | |
2277 | sec->use_rela_p); | |
2278 | if (spec != NULL) | |
2279 | return spec; | |
2280 | } | |
2281 | ||
551b43fd AM |
2282 | if (sec->name[0] != '.') |
2283 | return NULL; | |
2f89ff8d | 2284 | |
551b43fd | 2285 | i = sec->name[1] - 'b'; |
1b315056 | 2286 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2287 | return NULL; |
2288 | ||
2289 | spec = special_sections[i]; | |
2f89ff8d | 2290 | |
551b43fd AM |
2291 | if (spec == NULL) |
2292 | return NULL; | |
2293 | ||
2294 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2295 | } |
2296 | ||
b34976b6 | 2297 | bfd_boolean |
217aa764 | 2298 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2299 | { |
2300 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2301 | const struct elf_backend_data *bed; |
7dcb9820 | 2302 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2303 | |
f0abc2a1 AM |
2304 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2305 | if (sdata == NULL) | |
2306 | { | |
a50b1753 NC |
2307 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
2308 | sizeof (*sdata)); | |
f0abc2a1 AM |
2309 | if (sdata == NULL) |
2310 | return FALSE; | |
217aa764 | 2311 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2312 | } |
bf572ba0 | 2313 | |
551b43fd AM |
2314 | /* Indicate whether or not this section should use RELA relocations. */ |
2315 | bed = get_elf_backend_data (abfd); | |
2316 | sec->use_rela_p = bed->default_use_rela_p; | |
2317 | ||
e843e0f8 L |
2318 | /* When we read a file, we don't need to set ELF section type and |
2319 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2320 | anyway. We will set ELF section type and flags for all linker | |
2321 | created sections. If user specifies BFD section flags, we will | |
2322 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2323 | elf_fake_sections. Special handling for .init_array/.fini_array |
2324 | output sections since they may contain .ctors/.dtors input | |
2325 | sections. We don't want _bfd_elf_init_private_section_data to | |
2326 | copy ELF section type from .ctors/.dtors input sections. */ | |
2327 | if (abfd->direction != read_direction | |
3496cb2a | 2328 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2329 | { |
551b43fd | 2330 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2331 | if (ssect != NULL |
2332 | && (!sec->flags | |
2333 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2334 | || ssect->type == SHT_INIT_ARRAY | |
2335 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2336 | { |
2337 | elf_section_type (sec) = ssect->type; | |
2338 | elf_section_flags (sec) = ssect->attr; | |
2339 | } | |
2f89ff8d L |
2340 | } |
2341 | ||
f592407e | 2342 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2343 | } |
2344 | ||
2345 | /* Create a new bfd section from an ELF program header. | |
2346 | ||
2347 | Since program segments have no names, we generate a synthetic name | |
2348 | of the form segment<NUM>, where NUM is generally the index in the | |
2349 | program header table. For segments that are split (see below) we | |
2350 | generate the names segment<NUM>a and segment<NUM>b. | |
2351 | ||
2352 | Note that some program segments may have a file size that is different than | |
2353 | (less than) the memory size. All this means is that at execution the | |
2354 | system must allocate the amount of memory specified by the memory size, | |
2355 | but only initialize it with the first "file size" bytes read from the | |
2356 | file. This would occur for example, with program segments consisting | |
2357 | of combined data+bss. | |
2358 | ||
2359 | To handle the above situation, this routine generates TWO bfd sections | |
2360 | for the single program segment. The first has the length specified by | |
2361 | the file size of the segment, and the second has the length specified | |
2362 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2363 | into its initialized and uninitialized parts. |
252b5132 RH |
2364 | |
2365 | */ | |
2366 | ||
b34976b6 | 2367 | bfd_boolean |
217aa764 AM |
2368 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2369 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2370 | int hdr_index, |
a50b1753 | 2371 | const char *type_name) |
252b5132 RH |
2372 | { |
2373 | asection *newsect; | |
2374 | char *name; | |
2375 | char namebuf[64]; | |
d4c88bbb | 2376 | size_t len; |
252b5132 RH |
2377 | int split; |
2378 | ||
2379 | split = ((hdr->p_memsz > 0) | |
2380 | && (hdr->p_filesz > 0) | |
2381 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2382 | |
2383 | if (hdr->p_filesz > 0) | |
252b5132 | 2384 | { |
91d6fa6a | 2385 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2386 | len = strlen (namebuf) + 1; |
a50b1753 | 2387 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2388 | if (!name) |
2389 | return FALSE; | |
2390 | memcpy (name, namebuf, len); | |
2391 | newsect = bfd_make_section (abfd, name); | |
2392 | if (newsect == NULL) | |
2393 | return FALSE; | |
2394 | newsect->vma = hdr->p_vaddr; | |
2395 | newsect->lma = hdr->p_paddr; | |
2396 | newsect->size = hdr->p_filesz; | |
2397 | newsect->filepos = hdr->p_offset; | |
2398 | newsect->flags |= SEC_HAS_CONTENTS; | |
2399 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2400 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2401 | { |
d5191d0c AM |
2402 | newsect->flags |= SEC_ALLOC; |
2403 | newsect->flags |= SEC_LOAD; | |
2404 | if (hdr->p_flags & PF_X) | |
2405 | { | |
2406 | /* FIXME: all we known is that it has execute PERMISSION, | |
2407 | may be data. */ | |
2408 | newsect->flags |= SEC_CODE; | |
2409 | } | |
2410 | } | |
2411 | if (!(hdr->p_flags & PF_W)) | |
2412 | { | |
2413 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2414 | } |
252b5132 RH |
2415 | } |
2416 | ||
d5191d0c | 2417 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2418 | { |
d5191d0c AM |
2419 | bfd_vma align; |
2420 | ||
91d6fa6a | 2421 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2422 | len = strlen (namebuf) + 1; |
a50b1753 | 2423 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2424 | if (!name) |
b34976b6 | 2425 | return FALSE; |
d4c88bbb | 2426 | memcpy (name, namebuf, len); |
252b5132 RH |
2427 | newsect = bfd_make_section (abfd, name); |
2428 | if (newsect == NULL) | |
b34976b6 | 2429 | return FALSE; |
252b5132 RH |
2430 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2431 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2432 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2433 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2434 | align = newsect->vma & -newsect->vma; | |
2435 | if (align == 0 || align > hdr->p_align) | |
2436 | align = hdr->p_align; | |
2437 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2438 | if (hdr->p_type == PT_LOAD) |
2439 | { | |
d5191d0c AM |
2440 | /* Hack for gdb. Segments that have not been modified do |
2441 | not have their contents written to a core file, on the | |
2442 | assumption that a debugger can find the contents in the | |
2443 | executable. We flag this case by setting the fake | |
2444 | section size to zero. Note that "real" bss sections will | |
2445 | always have their contents dumped to the core file. */ | |
2446 | if (bfd_get_format (abfd) == bfd_core) | |
2447 | newsect->size = 0; | |
252b5132 RH |
2448 | newsect->flags |= SEC_ALLOC; |
2449 | if (hdr->p_flags & PF_X) | |
2450 | newsect->flags |= SEC_CODE; | |
2451 | } | |
2452 | if (!(hdr->p_flags & PF_W)) | |
2453 | newsect->flags |= SEC_READONLY; | |
2454 | } | |
2455 | ||
b34976b6 | 2456 | return TRUE; |
252b5132 RH |
2457 | } |
2458 | ||
b34976b6 | 2459 | bfd_boolean |
91d6fa6a | 2460 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2461 | { |
9c5bfbb7 | 2462 | const struct elf_backend_data *bed; |
20cfcaae NC |
2463 | |
2464 | switch (hdr->p_type) | |
2465 | { | |
2466 | case PT_NULL: | |
91d6fa6a | 2467 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2468 | |
2469 | case PT_LOAD: | |
91d6fa6a | 2470 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2471 | |
2472 | case PT_DYNAMIC: | |
91d6fa6a | 2473 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
2474 | |
2475 | case PT_INTERP: | |
91d6fa6a | 2476 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
2477 | |
2478 | case PT_NOTE: | |
91d6fa6a | 2479 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 2480 | return FALSE; |
718175fa | 2481 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) |
b34976b6 AM |
2482 | return FALSE; |
2483 | return TRUE; | |
20cfcaae NC |
2484 | |
2485 | case PT_SHLIB: | |
91d6fa6a | 2486 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
2487 | |
2488 | case PT_PHDR: | |
91d6fa6a | 2489 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 2490 | |
811072d8 | 2491 | case PT_GNU_EH_FRAME: |
91d6fa6a | 2492 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
2493 | "eh_frame_hdr"); |
2494 | ||
2b05f1b7 | 2495 | case PT_GNU_STACK: |
91d6fa6a | 2496 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 2497 | |
8c37241b | 2498 | case PT_GNU_RELRO: |
91d6fa6a | 2499 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 2500 | |
20cfcaae | 2501 | default: |
8c1acd09 | 2502 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 2503 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 2504 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
2505 | } |
2506 | } | |
2507 | ||
d4730f92 BS |
2508 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
2509 | REL or RELA. */ | |
2510 | ||
2511 | Elf_Internal_Shdr * | |
2512 | _bfd_elf_single_rel_hdr (asection *sec) | |
2513 | { | |
2514 | if (elf_section_data (sec)->rel.hdr) | |
2515 | { | |
2516 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
2517 | return elf_section_data (sec)->rel.hdr; | |
2518 | } | |
2519 | else | |
2520 | return elf_section_data (sec)->rela.hdr; | |
2521 | } | |
2522 | ||
2523 | /* Allocate and initialize a section-header for a new reloc section, | |
2524 | containing relocations against ASECT. It is stored in RELDATA. If | |
2525 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
2526 | relocations. */ | |
23bc299b | 2527 | |
5d13b3b3 | 2528 | static bfd_boolean |
217aa764 | 2529 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 2530 | struct bfd_elf_section_reloc_data *reldata, |
217aa764 AM |
2531 | asection *asect, |
2532 | bfd_boolean use_rela_p) | |
23bc299b | 2533 | { |
d4730f92 | 2534 | Elf_Internal_Shdr *rel_hdr; |
23bc299b | 2535 | char *name; |
9c5bfbb7 | 2536 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2537 | bfd_size_type amt; |
2538 | ||
2539 | amt = sizeof (Elf_Internal_Shdr); | |
2540 | BFD_ASSERT (reldata->hdr == NULL); | |
2541 | rel_hdr = bfd_zalloc (abfd, amt); | |
2542 | reldata->hdr = rel_hdr; | |
23bc299b | 2543 | |
d324f6d6 | 2544 | amt = sizeof ".rela" + strlen (asect->name); |
a50b1753 | 2545 | name = (char *) bfd_alloc (abfd, amt); |
23bc299b | 2546 | if (name == NULL) |
b34976b6 | 2547 | return FALSE; |
23bc299b MM |
2548 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); |
2549 | rel_hdr->sh_name = | |
2b0f7ef9 | 2550 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, |
b34976b6 | 2551 | FALSE); |
23bc299b | 2552 | if (rel_hdr->sh_name == (unsigned int) -1) |
b34976b6 | 2553 | return FALSE; |
23bc299b MM |
2554 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
2555 | rel_hdr->sh_entsize = (use_rela_p | |
2556 | ? bed->s->sizeof_rela | |
2557 | : bed->s->sizeof_rel); | |
72de5009 | 2558 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
23bc299b MM |
2559 | rel_hdr->sh_flags = 0; |
2560 | rel_hdr->sh_addr = 0; | |
2561 | rel_hdr->sh_size = 0; | |
2562 | rel_hdr->sh_offset = 0; | |
2563 | ||
b34976b6 | 2564 | return TRUE; |
23bc299b MM |
2565 | } |
2566 | ||
94be91de JB |
2567 | /* Return the default section type based on the passed in section flags. */ |
2568 | ||
2569 | int | |
2570 | bfd_elf_get_default_section_type (flagword flags) | |
2571 | { | |
2572 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 2573 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
2574 | return SHT_NOBITS; |
2575 | return SHT_PROGBITS; | |
2576 | } | |
2577 | ||
d4730f92 BS |
2578 | struct fake_section_arg |
2579 | { | |
2580 | struct bfd_link_info *link_info; | |
2581 | bfd_boolean failed; | |
2582 | }; | |
2583 | ||
252b5132 RH |
2584 | /* Set up an ELF internal section header for a section. */ |
2585 | ||
252b5132 | 2586 | static void |
d4730f92 | 2587 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 2588 | { |
d4730f92 | 2589 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 2590 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 2591 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 2592 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 2593 | unsigned int sh_type; |
252b5132 | 2594 | |
d4730f92 | 2595 | if (arg->failed) |
252b5132 RH |
2596 | { |
2597 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 2598 | loop. */ |
252b5132 RH |
2599 | return; |
2600 | } | |
2601 | ||
d4730f92 | 2602 | this_hdr = &esd->this_hdr; |
252b5132 | 2603 | |
e57b5356 AM |
2604 | this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
2605 | asect->name, FALSE); | |
2606 | if (this_hdr->sh_name == (unsigned int) -1) | |
252b5132 | 2607 | { |
d4730f92 | 2608 | arg->failed = TRUE; |
252b5132 RH |
2609 | return; |
2610 | } | |
2611 | ||
a4d8e49b | 2612 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
2613 | |
2614 | if ((asect->flags & SEC_ALLOC) != 0 | |
2615 | || asect->user_set_vma) | |
2616 | this_hdr->sh_addr = asect->vma; | |
2617 | else | |
2618 | this_hdr->sh_addr = 0; | |
2619 | ||
2620 | this_hdr->sh_offset = 0; | |
eea6121a | 2621 | this_hdr->sh_size = asect->size; |
252b5132 | 2622 | this_hdr->sh_link = 0; |
72de5009 | 2623 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
2624 | /* The sh_entsize and sh_info fields may have been set already by |
2625 | copy_private_section_data. */ | |
2626 | ||
2627 | this_hdr->bfd_section = asect; | |
2628 | this_hdr->contents = NULL; | |
2629 | ||
3cddba1e L |
2630 | /* If the section type is unspecified, we set it based on |
2631 | asect->flags. */ | |
98ece1b3 AM |
2632 | if ((asect->flags & SEC_GROUP) != 0) |
2633 | sh_type = SHT_GROUP; | |
98ece1b3 | 2634 | else |
94be91de | 2635 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 2636 | |
3cddba1e | 2637 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
2638 | this_hdr->sh_type = sh_type; |
2639 | else if (this_hdr->sh_type == SHT_NOBITS | |
2640 | && sh_type == SHT_PROGBITS | |
2641 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 2642 | { |
98ece1b3 AM |
2643 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
2644 | allow the link to proceed. This can happen when users link | |
2645 | non-bss input sections to bss output sections, or emit data | |
2646 | to a bss output section via a linker script. */ | |
2647 | (*_bfd_error_handler) | |
58f0869b | 2648 | (_("warning: section `%A' type changed to PROGBITS"), asect); |
98ece1b3 | 2649 | this_hdr->sh_type = sh_type; |
3cddba1e L |
2650 | } |
2651 | ||
2f89ff8d | 2652 | switch (this_hdr->sh_type) |
252b5132 | 2653 | { |
2f89ff8d | 2654 | default: |
2f89ff8d L |
2655 | break; |
2656 | ||
2657 | case SHT_STRTAB: | |
2658 | case SHT_INIT_ARRAY: | |
2659 | case SHT_FINI_ARRAY: | |
2660 | case SHT_PREINIT_ARRAY: | |
2661 | case SHT_NOTE: | |
2662 | case SHT_NOBITS: | |
2663 | case SHT_PROGBITS: | |
2664 | break; | |
2665 | ||
2666 | case SHT_HASH: | |
c7ac6ff8 | 2667 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 2668 | break; |
5de3bf90 | 2669 | |
2f89ff8d | 2670 | case SHT_DYNSYM: |
252b5132 | 2671 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
2672 | break; |
2673 | ||
2674 | case SHT_DYNAMIC: | |
252b5132 | 2675 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
2676 | break; |
2677 | ||
2678 | case SHT_RELA: | |
2679 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
2680 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2681 | break; | |
2682 | ||
2683 | case SHT_REL: | |
2684 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
2685 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2686 | break; | |
2687 | ||
2688 | case SHT_GNU_versym: | |
252b5132 | 2689 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
2690 | break; |
2691 | ||
2692 | case SHT_GNU_verdef: | |
252b5132 RH |
2693 | this_hdr->sh_entsize = 0; |
2694 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2695 | cverdefs. The linker will set cverdefs, but sh_info will be |
2696 | zero. */ | |
252b5132 RH |
2697 | if (this_hdr->sh_info == 0) |
2698 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2699 | else | |
2700 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
2701 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
2702 | break; |
2703 | ||
2704 | case SHT_GNU_verneed: | |
252b5132 RH |
2705 | this_hdr->sh_entsize = 0; |
2706 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2707 | cverrefs. The linker will set cverrefs, but sh_info will be |
2708 | zero. */ | |
252b5132 RH |
2709 | if (this_hdr->sh_info == 0) |
2710 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
2711 | else | |
2712 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
2713 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
2714 | break; |
2715 | ||
2716 | case SHT_GROUP: | |
1783205a | 2717 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 2718 | break; |
fdc90cb4 JJ |
2719 | |
2720 | case SHT_GNU_HASH: | |
2721 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
2722 | break; | |
dbb410c3 | 2723 | } |
252b5132 RH |
2724 | |
2725 | if ((asect->flags & SEC_ALLOC) != 0) | |
2726 | this_hdr->sh_flags |= SHF_ALLOC; | |
2727 | if ((asect->flags & SEC_READONLY) == 0) | |
2728 | this_hdr->sh_flags |= SHF_WRITE; | |
2729 | if ((asect->flags & SEC_CODE) != 0) | |
2730 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
2731 | if ((asect->flags & SEC_MERGE) != 0) |
2732 | { | |
2733 | this_hdr->sh_flags |= SHF_MERGE; | |
2734 | this_hdr->sh_entsize = asect->entsize; | |
2735 | if ((asect->flags & SEC_STRINGS) != 0) | |
2736 | this_hdr->sh_flags |= SHF_STRINGS; | |
2737 | } | |
1126897b | 2738 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 2739 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 2740 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
2741 | { |
2742 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
2743 | if (asect->size == 0 |
2744 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 2745 | { |
3a800eb9 | 2746 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 2747 | |
704afa60 | 2748 | this_hdr->sh_size = 0; |
3a800eb9 AM |
2749 | if (o != NULL) |
2750 | { | |
704afa60 | 2751 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
2752 | if (this_hdr->sh_size != 0) |
2753 | this_hdr->sh_type = SHT_NOBITS; | |
2754 | } | |
704afa60 JJ |
2755 | } |
2756 | } | |
18ae9cc1 L |
2757 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
2758 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 2759 | |
d4730f92 BS |
2760 | /* If the section has relocs, set up a section header for the |
2761 | SHT_REL[A] section. If two relocation sections are required for | |
2762 | this section, it is up to the processor-specific back-end to | |
2763 | create the other. */ | |
2764 | if ((asect->flags & SEC_RELOC) != 0) | |
2765 | { | |
2766 | /* When doing a relocatable link, create both REL and RELA sections if | |
2767 | needed. */ | |
2768 | if (arg->link_info | |
2769 | /* Do the normal setup if we wouldn't create any sections here. */ | |
2770 | && esd->rel.count + esd->rela.count > 0 | |
2771 | && (arg->link_info->relocatable || arg->link_info->emitrelocations)) | |
2772 | { | |
2773 | if (esd->rel.count && esd->rel.hdr == NULL | |
2774 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, asect, FALSE)) | |
2775 | { | |
2776 | arg->failed = TRUE; | |
2777 | return; | |
2778 | } | |
2779 | if (esd->rela.count && esd->rela.hdr == NULL | |
2780 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, asect, TRUE)) | |
2781 | { | |
2782 | arg->failed = TRUE; | |
2783 | return; | |
2784 | } | |
2785 | } | |
2786 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
2787 | (asect->use_rela_p | |
2788 | ? &esd->rela : &esd->rel), | |
2789 | asect, | |
2790 | asect->use_rela_p)) | |
2791 | arg->failed = TRUE; | |
2792 | } | |
2793 | ||
252b5132 | 2794 | /* Check for processor-specific section types. */ |
0414f35b | 2795 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
2796 | if (bed->elf_backend_fake_sections |
2797 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
d4730f92 | 2798 | arg->failed = TRUE; |
252b5132 | 2799 | |
42bb2e33 | 2800 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
2801 | { |
2802 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 2803 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
2804 | this_hdr->sh_type = sh_type; |
2805 | } | |
252b5132 RH |
2806 | } |
2807 | ||
bcacc0f5 AM |
2808 | /* Fill in the contents of a SHT_GROUP section. Called from |
2809 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
2810 | when ELF targets use the generic linker, ld. Called for ld -r | |
2811 | from bfd_elf_final_link. */ | |
dbb410c3 | 2812 | |
1126897b | 2813 | void |
217aa764 | 2814 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 2815 | { |
a50b1753 | 2816 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 2817 | asection *elt, *first; |
dbb410c3 | 2818 | unsigned char *loc; |
b34976b6 | 2819 | bfd_boolean gas; |
dbb410c3 | 2820 | |
7e4111ad L |
2821 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
2822 | elfxx-ia64.c. */ | |
2823 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
2824 | || *failedptr) |
2825 | return; | |
2826 | ||
bcacc0f5 AM |
2827 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
2828 | { | |
2829 | unsigned long symindx = 0; | |
2830 | ||
2831 | /* elf_group_id will have been set up by objcopy and the | |
2832 | generic linker. */ | |
2833 | if (elf_group_id (sec) != NULL) | |
2834 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 2835 | |
bcacc0f5 AM |
2836 | if (symindx == 0) |
2837 | { | |
2838 | /* If called from the assembler, swap_out_syms will have set up | |
2839 | elf_section_syms. */ | |
2840 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
2841 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
2842 | } | |
2843 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
2844 | } | |
2845 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 2846 | { |
bcacc0f5 AM |
2847 | /* The ELF backend linker sets sh_info to -2 when the group |
2848 | signature symbol is global, and thus the index can't be | |
2849 | set until all local symbols are output. */ | |
2850 | asection *igroup = elf_sec_group (elf_next_in_group (sec)); | |
2851 | struct bfd_elf_section_data *sec_data = elf_section_data (igroup); | |
2852 | unsigned long symndx = sec_data->this_hdr.sh_info; | |
2853 | unsigned long extsymoff = 0; | |
2854 | struct elf_link_hash_entry *h; | |
2855 | ||
2856 | if (!elf_bad_symtab (igroup->owner)) | |
2857 | { | |
2858 | Elf_Internal_Shdr *symtab_hdr; | |
2859 | ||
2860 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
2861 | extsymoff = symtab_hdr->sh_info; | |
2862 | } | |
2863 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
2864 | while (h->root.type == bfd_link_hash_indirect | |
2865 | || h->root.type == bfd_link_hash_warning) | |
2866 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2867 | ||
2868 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 2869 | } |
dbb410c3 | 2870 | |
1126897b | 2871 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 2872 | gas = TRUE; |
dbb410c3 AM |
2873 | if (sec->contents == NULL) |
2874 | { | |
b34976b6 | 2875 | gas = FALSE; |
a50b1753 | 2876 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
2877 | |
2878 | /* Arrange for the section to be written out. */ | |
2879 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
2880 | if (sec->contents == NULL) |
2881 | { | |
b34976b6 | 2882 | *failedptr = TRUE; |
dbb410c3 AM |
2883 | return; |
2884 | } | |
2885 | } | |
2886 | ||
eea6121a | 2887 | loc = sec->contents + sec->size; |
dbb410c3 | 2888 | |
9dce4196 AM |
2889 | /* Get the pointer to the first section in the group that gas |
2890 | squirreled away here. objcopy arranges for this to be set to the | |
2891 | start of the input section group. */ | |
2892 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
2893 | |
2894 | /* First element is a flag word. Rest of section is elf section | |
2895 | indices for all the sections of the group. Write them backwards | |
2896 | just to keep the group in the same order as given in .section | |
2897 | directives, not that it matters. */ | |
2898 | while (elt != NULL) | |
2899 | { | |
9dce4196 | 2900 | asection *s; |
9dce4196 | 2901 | |
9dce4196 | 2902 | s = elt; |
415f38a6 AM |
2903 | if (!gas) |
2904 | s = s->output_section; | |
2905 | if (s != NULL | |
2906 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 2907 | { |
415f38a6 AM |
2908 | unsigned int idx = elf_section_data (s)->this_idx; |
2909 | ||
01e1a5bc | 2910 | loc -= 4; |
01e1a5bc NC |
2911 | H_PUT_32 (abfd, idx, loc); |
2912 | } | |
945906ff | 2913 | elt = elf_next_in_group (elt); |
9dce4196 AM |
2914 | if (elt == first) |
2915 | break; | |
dbb410c3 AM |
2916 | } |
2917 | ||
3d7f7666 | 2918 | if ((loc -= 4) != sec->contents) |
9dce4196 | 2919 | abort (); |
dbb410c3 | 2920 | |
9dce4196 | 2921 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
2922 | } |
2923 | ||
252b5132 RH |
2924 | /* Assign all ELF section numbers. The dummy first section is handled here |
2925 | too. The link/info pointers for the standard section types are filled | |
2926 | in here too, while we're at it. */ | |
2927 | ||
b34976b6 | 2928 | static bfd_boolean |
da9f89d4 | 2929 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
2930 | { |
2931 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
2932 | asection *sec; | |
2b0f7ef9 | 2933 | unsigned int section_number, secn; |
252b5132 | 2934 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 2935 | struct bfd_elf_section_data *d; |
3516e984 | 2936 | bfd_boolean need_symtab; |
252b5132 RH |
2937 | |
2938 | section_number = 1; | |
2939 | ||
2b0f7ef9 JJ |
2940 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
2941 | ||
da9f89d4 L |
2942 | /* SHT_GROUP sections are in relocatable files only. */ |
2943 | if (link_info == NULL || link_info->relocatable) | |
252b5132 | 2944 | { |
da9f89d4 | 2945 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 2946 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 2947 | { |
5daa8fe7 | 2948 | d = elf_section_data (sec); |
da9f89d4 L |
2949 | |
2950 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 2951 | { |
5daa8fe7 | 2952 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
2953 | { |
2954 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 2955 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 2956 | abfd->section_count--; |
da9f89d4 | 2957 | } |
08a40648 | 2958 | else |
4fbb74a6 | 2959 | d->this_idx = section_number++; |
da9f89d4 | 2960 | } |
47cc2cf5 PB |
2961 | } |
2962 | } | |
2963 | ||
2964 | for (sec = abfd->sections; sec; sec = sec->next) | |
2965 | { | |
2966 | d = elf_section_data (sec); | |
2967 | ||
2968 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 2969 | d->this_idx = section_number++; |
2b0f7ef9 | 2970 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); |
d4730f92 | 2971 | if (d->rel.hdr) |
2b0f7ef9 | 2972 | { |
d4730f92 BS |
2973 | d->rel.idx = section_number++; |
2974 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 2975 | } |
d4730f92 BS |
2976 | else |
2977 | d->rel.idx = 0; | |
23bc299b | 2978 | |
d4730f92 | 2979 | if (d->rela.hdr) |
2b0f7ef9 | 2980 | { |
d4730f92 BS |
2981 | d->rela.idx = section_number++; |
2982 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 2983 | } |
23bc299b | 2984 | else |
d4730f92 | 2985 | d->rela.idx = 0; |
252b5132 RH |
2986 | } |
2987 | ||
12bd6957 | 2988 | elf_shstrtab_sec (abfd) = section_number++; |
2b0f7ef9 | 2989 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
12bd6957 | 2990 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); |
252b5132 | 2991 | |
3516e984 L |
2992 | need_symtab = (bfd_get_symcount (abfd) > 0 |
2993 | || (link_info == NULL | |
2994 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
2995 | == HAS_RELOC))); | |
2996 | if (need_symtab) | |
252b5132 | 2997 | { |
12bd6957 | 2998 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 2999 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3000 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3001 | { |
12bd6957 | 3002 | elf_symtab_shndx (abfd) = section_number++; |
9ad5cbcf AM |
3003 | t->symtab_shndx_hdr.sh_name |
3004 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
b34976b6 | 3005 | ".symtab_shndx", FALSE); |
9ad5cbcf | 3006 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3007 | return FALSE; |
9ad5cbcf | 3008 | } |
12bd6957 | 3009 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3010 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3011 | } |
3012 | ||
1c52a645 L |
3013 | if (section_number >= SHN_LORESERVE) |
3014 | { | |
3015 | _bfd_error_handler (_("%B: too many sections: %u"), | |
3016 | abfd, section_number); | |
3017 | return FALSE; | |
3018 | } | |
3019 | ||
2b0f7ef9 JJ |
3020 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); |
3021 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
9ad5cbcf AM |
3022 | |
3023 | elf_numsections (abfd) = section_number; | |
252b5132 RH |
3024 | elf_elfheader (abfd)->e_shnum = section_number; |
3025 | ||
3026 | /* Set up the list of section header pointers, in agreement with the | |
3027 | indices. */ | |
a50b1753 NC |
3028 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
3029 | sizeof (Elf_Internal_Shdr *)); | |
252b5132 | 3030 | if (i_shdrp == NULL) |
b34976b6 | 3031 | return FALSE; |
252b5132 | 3032 | |
a50b1753 NC |
3033 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
3034 | sizeof (Elf_Internal_Shdr)); | |
252b5132 RH |
3035 | if (i_shdrp[0] == NULL) |
3036 | { | |
3037 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3038 | return FALSE; |
252b5132 | 3039 | } |
252b5132 RH |
3040 | |
3041 | elf_elfsections (abfd) = i_shdrp; | |
3042 | ||
12bd6957 | 3043 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3044 | if (need_symtab) |
252b5132 | 3045 | { |
12bd6957 | 3046 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3047 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3048 | { |
12bd6957 AM |
3049 | i_shdrp[elf_symtab_shndx (abfd)] = &t->symtab_shndx_hdr; |
3050 | t->symtab_shndx_hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3051 | } |
12bd6957 AM |
3052 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3053 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3054 | } |
38ce5b11 | 3055 | |
252b5132 RH |
3056 | for (sec = abfd->sections; sec; sec = sec->next) |
3057 | { | |
252b5132 RH |
3058 | asection *s; |
3059 | const char *name; | |
3060 | ||
91d6fa6a NC |
3061 | d = elf_section_data (sec); |
3062 | ||
252b5132 | 3063 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3064 | if (d->rel.idx != 0) |
3065 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3066 | if (d->rela.idx != 0) | |
3067 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3068 | |
3069 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3070 | ||
3071 | /* sh_link of a reloc section is the section index of the symbol | |
3072 | table. sh_info is the section index of the section to which | |
3073 | the relocation entries apply. */ | |
d4730f92 | 3074 | if (d->rel.idx != 0) |
252b5132 | 3075 | { |
12bd6957 | 3076 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3077 | d->rel.hdr->sh_info = d->this_idx; |
252b5132 | 3078 | } |
d4730f92 | 3079 | if (d->rela.idx != 0) |
23bc299b | 3080 | { |
12bd6957 | 3081 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3082 | d->rela.hdr->sh_info = d->this_idx; |
23bc299b | 3083 | } |
252b5132 | 3084 | |
38ce5b11 L |
3085 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3086 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3087 | { | |
3088 | s = elf_linked_to_section (sec); | |
3089 | if (s) | |
38ce5b11 | 3090 | { |
f2876037 | 3091 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3092 | if (link_info != NULL) |
38ce5b11 | 3093 | { |
f2876037 | 3094 | /* Check discarded linkonce section. */ |
dbaa2011 | 3095 | if (discarded_section (s)) |
38ce5b11 | 3096 | { |
ccd2ec6a L |
3097 | asection *kept; |
3098 | (*_bfd_error_handler) | |
3099 | (_("%B: sh_link of section `%A' points to discarded section `%A' of `%B'"), | |
3100 | abfd, d->this_hdr.bfd_section, | |
3101 | s, s->owner); | |
3102 | /* Point to the kept section if it has the same | |
3103 | size as the discarded one. */ | |
c0f00686 | 3104 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3105 | if (kept == NULL) |
185d09ad | 3106 | { |
ccd2ec6a L |
3107 | bfd_set_error (bfd_error_bad_value); |
3108 | return FALSE; | |
185d09ad | 3109 | } |
ccd2ec6a | 3110 | s = kept; |
38ce5b11 | 3111 | } |
e424ecc8 | 3112 | |
ccd2ec6a L |
3113 | s = s->output_section; |
3114 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3115 | } |
f2876037 L |
3116 | else |
3117 | { | |
3118 | /* Handle objcopy. */ | |
3119 | if (s->output_section == NULL) | |
3120 | { | |
3121 | (*_bfd_error_handler) | |
3122 | (_("%B: sh_link of section `%A' points to removed section `%A' of `%B'"), | |
3123 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3124 | bfd_set_error (bfd_error_bad_value); | |
3125 | return FALSE; | |
3126 | } | |
3127 | s = s->output_section; | |
3128 | } | |
ccd2ec6a L |
3129 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3130 | } | |
3131 | else | |
3132 | { | |
3133 | /* PR 290: | |
3134 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3135 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3136 | sh_info fields. Hence we could get the situation | |
08a40648 | 3137 | where s is NULL. */ |
ccd2ec6a L |
3138 | const struct elf_backend_data *bed |
3139 | = get_elf_backend_data (abfd); | |
3140 | if (bed->link_order_error_handler) | |
3141 | bed->link_order_error_handler | |
3142 | (_("%B: warning: sh_link not set for section `%A'"), | |
3143 | abfd, sec); | |
38ce5b11 L |
3144 | } |
3145 | } | |
3146 | ||
252b5132 RH |
3147 | switch (d->this_hdr.sh_type) |
3148 | { | |
3149 | case SHT_REL: | |
3150 | case SHT_RELA: | |
3151 | /* A reloc section which we are treating as a normal BFD | |
3152 | section. sh_link is the section index of the symbol | |
3153 | table. sh_info is the section index of the section to | |
3154 | which the relocation entries apply. We assume that an | |
3155 | allocated reloc section uses the dynamic symbol table. | |
3156 | FIXME: How can we be sure? */ | |
3157 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3158 | if (s != NULL) | |
3159 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3160 | ||
3161 | /* We look up the section the relocs apply to by name. */ | |
3162 | name = sec->name; | |
3163 | if (d->this_hdr.sh_type == SHT_REL) | |
3164 | name += 4; | |
3165 | else | |
3166 | name += 5; | |
3167 | s = bfd_get_section_by_name (abfd, name); | |
3168 | if (s != NULL) | |
3169 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3170 | break; | |
3171 | ||
3172 | case SHT_STRTAB: | |
3173 | /* We assume that a section named .stab*str is a stabs | |
3174 | string section. We look for a section with the same name | |
3175 | but without the trailing ``str'', and set its sh_link | |
3176 | field to point to this section. */ | |
0112cd26 | 3177 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3178 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3179 | { | |
3180 | size_t len; | |
3181 | char *alc; | |
3182 | ||
3183 | len = strlen (sec->name); | |
a50b1753 | 3184 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3185 | if (alc == NULL) |
b34976b6 | 3186 | return FALSE; |
d4c88bbb | 3187 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3188 | alc[len - 3] = '\0'; |
3189 | s = bfd_get_section_by_name (abfd, alc); | |
3190 | free (alc); | |
3191 | if (s != NULL) | |
3192 | { | |
3193 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3194 | ||
3195 | /* This is a .stab section. */ | |
0594c12d AM |
3196 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3197 | elf_section_data (s)->this_hdr.sh_entsize | |
3198 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3199 | } |
3200 | } | |
3201 | break; | |
3202 | ||
3203 | case SHT_DYNAMIC: | |
3204 | case SHT_DYNSYM: | |
3205 | case SHT_GNU_verneed: | |
3206 | case SHT_GNU_verdef: | |
3207 | /* sh_link is the section header index of the string table | |
3208 | used for the dynamic entries, or the symbol table, or the | |
3209 | version strings. */ | |
3210 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3211 | if (s != NULL) | |
3212 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3213 | break; | |
3214 | ||
7f1204bb JJ |
3215 | case SHT_GNU_LIBLIST: |
3216 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3217 | list used for the dynamic entries, or the symbol table, or |
3218 | the version strings. */ | |
7f1204bb JJ |
3219 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3220 | ? ".dynstr" : ".gnu.libstr"); | |
3221 | if (s != NULL) | |
3222 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3223 | break; | |
3224 | ||
252b5132 | 3225 | case SHT_HASH: |
fdc90cb4 | 3226 | case SHT_GNU_HASH: |
252b5132 RH |
3227 | case SHT_GNU_versym: |
3228 | /* sh_link is the section header index of the symbol table | |
3229 | this hash table or version table is for. */ | |
3230 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3231 | if (s != NULL) | |
3232 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3233 | break; | |
dbb410c3 AM |
3234 | |
3235 | case SHT_GROUP: | |
12bd6957 | 3236 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3237 | } |
3238 | } | |
3239 | ||
2b0f7ef9 | 3240 | for (secn = 1; secn < section_number; ++secn) |
9ad5cbcf AM |
3241 | if (i_shdrp[secn] == NULL) |
3242 | i_shdrp[secn] = i_shdrp[0]; | |
3243 | else | |
3244 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
3245 | i_shdrp[secn]->sh_name); | |
b34976b6 | 3246 | return TRUE; |
252b5132 RH |
3247 | } |
3248 | ||
5372391b | 3249 | static bfd_boolean |
217aa764 | 3250 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3251 | { |
3252 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3253 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3254 | if (bed->elf_backend_sym_is_global) |
3255 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3256 | |
e47bf690 | 3257 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3258 | || bfd_is_und_section (bfd_get_section (sym)) |
3259 | || bfd_is_com_section (bfd_get_section (sym))); | |
3260 | } | |
3261 | ||
5372391b | 3262 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 3263 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
3264 | |
3265 | static bfd_boolean | |
3266 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
3267 | { | |
c6d8cab4 L |
3268 | elf_symbol_type *type_ptr; |
3269 | ||
3270 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3271 | return FALSE; | |
3272 | ||
3273 | type_ptr = elf_symbol_from (abfd, sym); | |
3274 | return ((type_ptr != NULL | |
3275 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
3276 | && bfd_is_abs_section (sym->section)) | |
3277 | || !(sym->section->owner == abfd | |
0f0a5e58 | 3278 | || (sym->section->output_section->owner == abfd |
2633a79c AM |
3279 | && sym->section->output_offset == 0) |
3280 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
3281 | } |
3282 | ||
2633a79c AM |
3283 | /* Map symbol from it's internal number to the external number, moving |
3284 | all local symbols to be at the head of the list. */ | |
3285 | ||
b34976b6 | 3286 | static bfd_boolean |
12bd6957 | 3287 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 3288 | { |
dc810e39 | 3289 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
3290 | asymbol **syms = bfd_get_outsymbols (abfd); |
3291 | asymbol **sect_syms; | |
dc810e39 AM |
3292 | unsigned int num_locals = 0; |
3293 | unsigned int num_globals = 0; | |
3294 | unsigned int num_locals2 = 0; | |
3295 | unsigned int num_globals2 = 0; | |
252b5132 | 3296 | int max_index = 0; |
dc810e39 | 3297 | unsigned int idx; |
252b5132 RH |
3298 | asection *asect; |
3299 | asymbol **new_syms; | |
252b5132 RH |
3300 | |
3301 | #ifdef DEBUG | |
3302 | fprintf (stderr, "elf_map_symbols\n"); | |
3303 | fflush (stderr); | |
3304 | #endif | |
3305 | ||
252b5132 RH |
3306 | for (asect = abfd->sections; asect; asect = asect->next) |
3307 | { | |
3308 | if (max_index < asect->index) | |
3309 | max_index = asect->index; | |
3310 | } | |
3311 | ||
3312 | max_index++; | |
a50b1753 | 3313 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 3314 | if (sect_syms == NULL) |
b34976b6 | 3315 | return FALSE; |
252b5132 | 3316 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 3317 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 3318 | |
079e9a2f AM |
3319 | /* Init sect_syms entries for any section symbols we have already |
3320 | decided to output. */ | |
252b5132 RH |
3321 | for (idx = 0; idx < symcount; idx++) |
3322 | { | |
dc810e39 | 3323 | asymbol *sym = syms[idx]; |
c044fabd | 3324 | |
252b5132 | 3325 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 3326 | && sym->value == 0 |
2633a79c AM |
3327 | && !ignore_section_sym (abfd, sym) |
3328 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 3329 | { |
5372391b | 3330 | asection *sec = sym->section; |
252b5132 | 3331 | |
5372391b AM |
3332 | if (sec->owner != abfd) |
3333 | sec = sec->output_section; | |
252b5132 | 3334 | |
5372391b | 3335 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
3336 | } |
3337 | } | |
3338 | ||
252b5132 RH |
3339 | /* Classify all of the symbols. */ |
3340 | for (idx = 0; idx < symcount; idx++) | |
3341 | { | |
2633a79c | 3342 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 3343 | num_globals++; |
2633a79c AM |
3344 | else if (!ignore_section_sym (abfd, syms[idx])) |
3345 | num_locals++; | |
252b5132 | 3346 | } |
079e9a2f | 3347 | |
5372391b | 3348 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
3349 | sections will already have a section symbol in outsymbols, but |
3350 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
3351 | at least in that case. */ | |
252b5132 RH |
3352 | for (asect = abfd->sections; asect; asect = asect->next) |
3353 | { | |
079e9a2f | 3354 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3355 | { |
079e9a2f | 3356 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
3357 | num_locals++; |
3358 | else | |
3359 | num_globals++; | |
252b5132 RH |
3360 | } |
3361 | } | |
3362 | ||
3363 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 NC |
3364 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
3365 | sizeof (asymbol *)); | |
dc810e39 | 3366 | |
252b5132 | 3367 | if (new_syms == NULL) |
b34976b6 | 3368 | return FALSE; |
252b5132 RH |
3369 | |
3370 | for (idx = 0; idx < symcount; idx++) | |
3371 | { | |
3372 | asymbol *sym = syms[idx]; | |
dc810e39 | 3373 | unsigned int i; |
252b5132 | 3374 | |
2633a79c AM |
3375 | if (sym_is_global (abfd, sym)) |
3376 | i = num_locals + num_globals2++; | |
3377 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
3378 | i = num_locals2++; |
3379 | else | |
2633a79c | 3380 | continue; |
252b5132 RH |
3381 | new_syms[i] = sym; |
3382 | sym->udata.i = i + 1; | |
3383 | } | |
3384 | for (asect = abfd->sections; asect; asect = asect->next) | |
3385 | { | |
079e9a2f | 3386 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3387 | { |
079e9a2f | 3388 | asymbol *sym = asect->symbol; |
dc810e39 | 3389 | unsigned int i; |
252b5132 | 3390 | |
079e9a2f | 3391 | sect_syms[asect->index] = sym; |
252b5132 RH |
3392 | if (!sym_is_global (abfd, sym)) |
3393 | i = num_locals2++; | |
3394 | else | |
3395 | i = num_locals + num_globals2++; | |
3396 | new_syms[i] = sym; | |
3397 | sym->udata.i = i + 1; | |
3398 | } | |
3399 | } | |
3400 | ||
3401 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
3402 | ||
12bd6957 | 3403 | *pnum_locals = num_locals; |
b34976b6 | 3404 | return TRUE; |
252b5132 RH |
3405 | } |
3406 | ||
3407 | /* Align to the maximum file alignment that could be required for any | |
3408 | ELF data structure. */ | |
3409 | ||
268b6b39 | 3410 | static inline file_ptr |
217aa764 | 3411 | align_file_position (file_ptr off, int align) |
252b5132 RH |
3412 | { |
3413 | return (off + align - 1) & ~(align - 1); | |
3414 | } | |
3415 | ||
3416 | /* Assign a file position to a section, optionally aligning to the | |
3417 | required section alignment. */ | |
3418 | ||
217aa764 AM |
3419 | file_ptr |
3420 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
3421 | file_ptr offset, | |
3422 | bfd_boolean align) | |
252b5132 | 3423 | { |
72de5009 AM |
3424 | if (align && i_shdrp->sh_addralign > 1) |
3425 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
3426 | i_shdrp->sh_offset = offset; |
3427 | if (i_shdrp->bfd_section != NULL) | |
3428 | i_shdrp->bfd_section->filepos = offset; | |
3429 | if (i_shdrp->sh_type != SHT_NOBITS) | |
3430 | offset += i_shdrp->sh_size; | |
3431 | return offset; | |
3432 | } | |
3433 | ||
3434 | /* Compute the file positions we are going to put the sections at, and | |
3435 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
3436 | is not NULL, this is being called by the ELF backend linker. */ | |
3437 | ||
b34976b6 | 3438 | bfd_boolean |
217aa764 AM |
3439 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
3440 | struct bfd_link_info *link_info) | |
252b5132 | 3441 | { |
9c5bfbb7 | 3442 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3443 | struct fake_section_arg fsargs; |
b34976b6 | 3444 | bfd_boolean failed; |
4b6c0f2f | 3445 | struct bfd_strtab_hash *strtab = NULL; |
252b5132 | 3446 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 3447 | bfd_boolean need_symtab; |
252b5132 RH |
3448 | |
3449 | if (abfd->output_has_begun) | |
b34976b6 | 3450 | return TRUE; |
252b5132 RH |
3451 | |
3452 | /* Do any elf backend specific processing first. */ | |
3453 | if (bed->elf_backend_begin_write_processing) | |
3454 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
3455 | ||
3456 | if (! prep_headers (abfd)) | |
b34976b6 | 3457 | return FALSE; |
252b5132 | 3458 | |
e6c51ed4 NC |
3459 | /* Post process the headers if necessary. */ |
3460 | if (bed->elf_backend_post_process_headers) | |
3461 | (*bed->elf_backend_post_process_headers) (abfd, link_info); | |
3462 | ||
d4730f92 BS |
3463 | fsargs.failed = FALSE; |
3464 | fsargs.link_info = link_info; | |
3465 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
3466 | if (fsargs.failed) | |
b34976b6 | 3467 | return FALSE; |
252b5132 | 3468 | |
da9f89d4 | 3469 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 3470 | return FALSE; |
252b5132 RH |
3471 | |
3472 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
3473 | need_symtab = (link_info == NULL |
3474 | && (bfd_get_symcount (abfd) > 0 | |
3475 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3476 | == HAS_RELOC))); | |
3477 | if (need_symtab) | |
252b5132 RH |
3478 | { |
3479 | /* Non-zero if doing a relocatable link. */ | |
3480 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
3481 | ||
3482 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 3483 | return FALSE; |
252b5132 RH |
3484 | } |
3485 | ||
d4730f92 | 3486 | failed = FALSE; |
1126897b | 3487 | if (link_info == NULL) |
dbb410c3 | 3488 | { |
1126897b | 3489 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 3490 | if (failed) |
b34976b6 | 3491 | return FALSE; |
dbb410c3 AM |
3492 | } |
3493 | ||
252b5132 RH |
3494 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
3495 | /* sh_name was set in prep_headers. */ | |
3496 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
3497 | shstrtab_hdr->sh_flags = 0; | |
3498 | shstrtab_hdr->sh_addr = 0; | |
2b0f7ef9 | 3499 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); |
252b5132 RH |
3500 | shstrtab_hdr->sh_entsize = 0; |
3501 | shstrtab_hdr->sh_link = 0; | |
3502 | shstrtab_hdr->sh_info = 0; | |
3503 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |
3504 | shstrtab_hdr->sh_addralign = 1; | |
3505 | ||
c84fca4d | 3506 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 3507 | return FALSE; |
252b5132 | 3508 | |
3516e984 | 3509 | if (need_symtab) |
252b5132 RH |
3510 | { |
3511 | file_ptr off; | |
3512 | Elf_Internal_Shdr *hdr; | |
3513 | ||
12bd6957 | 3514 | off = elf_next_file_pos (abfd); |
252b5132 RH |
3515 | |
3516 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
b34976b6 | 3517 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3518 | |
9ad5cbcf AM |
3519 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
3520 | if (hdr->sh_size != 0) | |
b34976b6 | 3521 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf | 3522 | |
252b5132 | 3523 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 3524 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3525 | |
12bd6957 | 3526 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
3527 | |
3528 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 3529 | out. */ |
252b5132 RH |
3530 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
3531 | || ! _bfd_stringtab_emit (abfd, strtab)) | |
b34976b6 | 3532 | return FALSE; |
252b5132 RH |
3533 | _bfd_stringtab_free (strtab); |
3534 | } | |
3535 | ||
b34976b6 | 3536 | abfd->output_has_begun = TRUE; |
252b5132 | 3537 | |
b34976b6 | 3538 | return TRUE; |
252b5132 RH |
3539 | } |
3540 | ||
8ded5a0f AM |
3541 | /* Make an initial estimate of the size of the program header. If we |
3542 | get the number wrong here, we'll redo section placement. */ | |
3543 | ||
3544 | static bfd_size_type | |
3545 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
3546 | { | |
3547 | size_t segs; | |
3548 | asection *s; | |
2b05f1b7 | 3549 | const struct elf_backend_data *bed; |
8ded5a0f AM |
3550 | |
3551 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
3552 | and one for data. */ | |
3553 | segs = 2; | |
3554 | ||
3555 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3556 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3557 | { | |
3558 | /* If we have a loadable interpreter section, we need a | |
3559 | PT_INTERP segment. In this case, assume we also need a | |
3560 | PT_PHDR segment, although that may not be true for all | |
3561 | targets. */ | |
3562 | segs += 2; | |
3563 | } | |
3564 | ||
3565 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
3566 | { | |
3567 | /* We need a PT_DYNAMIC segment. */ | |
3568 | ++segs; | |
f210dcff | 3569 | } |
08a40648 | 3570 | |
ceae84aa | 3571 | if (info != NULL && info->relro) |
f210dcff L |
3572 | { |
3573 | /* We need a PT_GNU_RELRO segment. */ | |
3574 | ++segs; | |
8ded5a0f AM |
3575 | } |
3576 | ||
12bd6957 | 3577 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
3578 | { |
3579 | /* We need a PT_GNU_EH_FRAME segment. */ | |
3580 | ++segs; | |
3581 | } | |
3582 | ||
12bd6957 | 3583 | if (elf_stack_flags (abfd)) |
8ded5a0f | 3584 | { |
2b05f1b7 L |
3585 | /* We need a PT_GNU_STACK segment. */ |
3586 | ++segs; | |
3587 | } | |
94b11780 | 3588 | |
2b05f1b7 L |
3589 | for (s = abfd->sections; s != NULL; s = s->next) |
3590 | { | |
8ded5a0f | 3591 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 3592 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
3593 | { |
3594 | /* We need a PT_NOTE segment. */ | |
3595 | ++segs; | |
1c5265b5 JJ |
3596 | /* Try to create just one PT_NOTE segment |
3597 | for all adjacent loadable .note* sections. | |
3598 | gABI requires that within a PT_NOTE segment | |
3599 | (and also inside of each SHT_NOTE section) | |
3600 | each note is padded to a multiple of 4 size, | |
3601 | so we check whether the sections are correctly | |
3602 | aligned. */ | |
3603 | if (s->alignment_power == 2) | |
3604 | while (s->next != NULL | |
3605 | && s->next->alignment_power == 2 | |
3606 | && (s->next->flags & SEC_LOAD) != 0 | |
3607 | && CONST_STRNEQ (s->next->name, ".note")) | |
3608 | s = s->next; | |
8ded5a0f AM |
3609 | } |
3610 | } | |
3611 | ||
3612 | for (s = abfd->sections; s != NULL; s = s->next) | |
3613 | { | |
3614 | if (s->flags & SEC_THREAD_LOCAL) | |
3615 | { | |
3616 | /* We need a PT_TLS segment. */ | |
3617 | ++segs; | |
3618 | break; | |
3619 | } | |
3620 | } | |
3621 | ||
3622 | /* Let the backend count up any program headers it might need. */ | |
2b05f1b7 | 3623 | bed = get_elf_backend_data (abfd); |
8ded5a0f AM |
3624 | if (bed->elf_backend_additional_program_headers) |
3625 | { | |
3626 | int a; | |
3627 | ||
3628 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
3629 | if (a == -1) | |
3630 | abort (); | |
3631 | segs += a; | |
3632 | } | |
3633 | ||
3634 | return segs * bed->s->sizeof_phdr; | |
3635 | } | |
3636 | ||
2ea37f1c NC |
3637 | /* Find the segment that contains the output_section of section. */ |
3638 | ||
3639 | Elf_Internal_Phdr * | |
3640 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
3641 | { | |
3642 | struct elf_segment_map *m; | |
3643 | Elf_Internal_Phdr *p; | |
3644 | ||
12bd6957 | 3645 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
3646 | m != NULL; |
3647 | m = m->next, p++) | |
3648 | { | |
3649 | int i; | |
3650 | ||
3651 | for (i = m->count - 1; i >= 0; i--) | |
3652 | if (m->sections[i] == section) | |
3653 | return p; | |
3654 | } | |
3655 | ||
3656 | return NULL; | |
3657 | } | |
3658 | ||
252b5132 RH |
3659 | /* Create a mapping from a set of sections to a program segment. */ |
3660 | ||
217aa764 AM |
3661 | static struct elf_segment_map * |
3662 | make_mapping (bfd *abfd, | |
3663 | asection **sections, | |
3664 | unsigned int from, | |
3665 | unsigned int to, | |
3666 | bfd_boolean phdr) | |
252b5132 RH |
3667 | { |
3668 | struct elf_segment_map *m; | |
3669 | unsigned int i; | |
3670 | asection **hdrpp; | |
dc810e39 | 3671 | bfd_size_type amt; |
252b5132 | 3672 | |
dc810e39 AM |
3673 | amt = sizeof (struct elf_segment_map); |
3674 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 3675 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
3676 | if (m == NULL) |
3677 | return NULL; | |
3678 | m->next = NULL; | |
3679 | m->p_type = PT_LOAD; | |
3680 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
3681 | m->sections[i - from] = *hdrpp; | |
3682 | m->count = to - from; | |
3683 | ||
3684 | if (from == 0 && phdr) | |
3685 | { | |
3686 | /* Include the headers in the first PT_LOAD segment. */ | |
3687 | m->includes_filehdr = 1; | |
3688 | m->includes_phdrs = 1; | |
3689 | } | |
3690 | ||
3691 | return m; | |
3692 | } | |
3693 | ||
229fcec5 MM |
3694 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
3695 | on failure. */ | |
3696 | ||
3697 | struct elf_segment_map * | |
3698 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
3699 | { | |
3700 | struct elf_segment_map *m; | |
3701 | ||
a50b1753 NC |
3702 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
3703 | sizeof (struct elf_segment_map)); | |
229fcec5 MM |
3704 | if (m == NULL) |
3705 | return NULL; | |
3706 | m->next = NULL; | |
3707 | m->p_type = PT_DYNAMIC; | |
3708 | m->count = 1; | |
3709 | m->sections[0] = dynsec; | |
08a40648 | 3710 | |
229fcec5 MM |
3711 | return m; |
3712 | } | |
3713 | ||
8ded5a0f | 3714 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 3715 | |
b34976b6 | 3716 | static bfd_boolean |
3dea8fca AM |
3717 | elf_modify_segment_map (bfd *abfd, |
3718 | struct bfd_link_info *info, | |
3719 | bfd_boolean remove_empty_load) | |
252b5132 | 3720 | { |
252e386e | 3721 | struct elf_segment_map **m; |
8ded5a0f | 3722 | const struct elf_backend_data *bed; |
252b5132 | 3723 | |
8ded5a0f AM |
3724 | /* The placement algorithm assumes that non allocated sections are |
3725 | not in PT_LOAD segments. We ensure this here by removing such | |
3726 | sections from the segment map. We also remove excluded | |
252e386e AM |
3727 | sections. Finally, any PT_LOAD segment without sections is |
3728 | removed. */ | |
12bd6957 | 3729 | m = &elf_seg_map (abfd); |
252e386e | 3730 | while (*m) |
8ded5a0f AM |
3731 | { |
3732 | unsigned int i, new_count; | |
252b5132 | 3733 | |
252e386e | 3734 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 3735 | { |
252e386e AM |
3736 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
3737 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
3738 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 3739 | { |
252e386e AM |
3740 | (*m)->sections[new_count] = (*m)->sections[i]; |
3741 | new_count++; | |
8ded5a0f AM |
3742 | } |
3743 | } | |
252e386e | 3744 | (*m)->count = new_count; |
252b5132 | 3745 | |
3dea8fca | 3746 | if (remove_empty_load && (*m)->p_type == PT_LOAD && (*m)->count == 0) |
252e386e AM |
3747 | *m = (*m)->next; |
3748 | else | |
3749 | m = &(*m)->next; | |
8ded5a0f | 3750 | } |
252b5132 | 3751 | |
8ded5a0f AM |
3752 | bed = get_elf_backend_data (abfd); |
3753 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 3754 | { |
252e386e | 3755 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 3756 | return FALSE; |
252b5132 | 3757 | } |
252b5132 | 3758 | |
8ded5a0f AM |
3759 | return TRUE; |
3760 | } | |
252b5132 | 3761 | |
8ded5a0f | 3762 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 3763 | |
8ded5a0f AM |
3764 | bfd_boolean |
3765 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
3766 | { | |
3767 | unsigned int count; | |
3768 | struct elf_segment_map *m; | |
3769 | asection **sections = NULL; | |
3770 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 3771 | bfd_boolean no_user_phdrs; |
252b5132 | 3772 | |
12bd6957 | 3773 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
3774 | |
3775 | if (info != NULL) | |
3776 | info->user_phdrs = !no_user_phdrs; | |
3777 | ||
3dea8fca | 3778 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 3779 | { |
8ded5a0f AM |
3780 | asection *s; |
3781 | unsigned int i; | |
3782 | struct elf_segment_map *mfirst; | |
3783 | struct elf_segment_map **pm; | |
3784 | asection *last_hdr; | |
3785 | bfd_vma last_size; | |
3786 | unsigned int phdr_index; | |
3787 | bfd_vma maxpagesize; | |
3788 | asection **hdrpp; | |
3789 | bfd_boolean phdr_in_segment = TRUE; | |
3790 | bfd_boolean writable; | |
3791 | int tls_count = 0; | |
3792 | asection *first_tls = NULL; | |
3793 | asection *dynsec, *eh_frame_hdr; | |
3794 | bfd_size_type amt; | |
8d06853e | 3795 | bfd_vma addr_mask, wrap_to = 0; |
252b5132 | 3796 | |
8ded5a0f | 3797 | /* Select the allocated sections, and sort them. */ |
252b5132 | 3798 | |
a50b1753 NC |
3799 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
3800 | sizeof (asection *)); | |
8ded5a0f | 3801 | if (sections == NULL) |
252b5132 | 3802 | goto error_return; |
252b5132 | 3803 | |
8d06853e AM |
3804 | /* Calculate top address, avoiding undefined behaviour of shift |
3805 | left operator when shift count is equal to size of type | |
3806 | being shifted. */ | |
3807 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
3808 | addr_mask = (addr_mask << 1) + 1; | |
3809 | ||
8ded5a0f AM |
3810 | i = 0; |
3811 | for (s = abfd->sections; s != NULL; s = s->next) | |
3812 | { | |
3813 | if ((s->flags & SEC_ALLOC) != 0) | |
3814 | { | |
3815 | sections[i] = s; | |
3816 | ++i; | |
8d06853e AM |
3817 | /* A wrapping section potentially clashes with header. */ |
3818 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
3819 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
3820 | } |
3821 | } | |
3822 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
3823 | count = i; | |
252b5132 | 3824 | |
8ded5a0f | 3825 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 3826 | |
8ded5a0f | 3827 | /* Build the mapping. */ |
252b5132 | 3828 | |
8ded5a0f AM |
3829 | mfirst = NULL; |
3830 | pm = &mfirst; | |
252b5132 | 3831 | |
8ded5a0f AM |
3832 | /* If we have a .interp section, then create a PT_PHDR segment for |
3833 | the program headers and a PT_INTERP segment for the .interp | |
3834 | section. */ | |
3835 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3836 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3837 | { | |
3838 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 3839 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3840 | if (m == NULL) |
3841 | goto error_return; | |
3842 | m->next = NULL; | |
3843 | m->p_type = PT_PHDR; | |
3844 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
3845 | m->p_flags = PF_R | PF_X; | |
3846 | m->p_flags_valid = 1; | |
3847 | m->includes_phdrs = 1; | |
252b5132 | 3848 | |
8ded5a0f AM |
3849 | *pm = m; |
3850 | pm = &m->next; | |
252b5132 | 3851 | |
8ded5a0f | 3852 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 3853 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3854 | if (m == NULL) |
3855 | goto error_return; | |
3856 | m->next = NULL; | |
3857 | m->p_type = PT_INTERP; | |
3858 | m->count = 1; | |
3859 | m->sections[0] = s; | |
3860 | ||
3861 | *pm = m; | |
3862 | pm = &m->next; | |
252b5132 | 3863 | } |
8ded5a0f AM |
3864 | |
3865 | /* Look through the sections. We put sections in the same program | |
3866 | segment when the start of the second section can be placed within | |
3867 | a few bytes of the end of the first section. */ | |
3868 | last_hdr = NULL; | |
3869 | last_size = 0; | |
3870 | phdr_index = 0; | |
3871 | maxpagesize = bed->maxpagesize; | |
3872 | writable = FALSE; | |
3873 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
3874 | if (dynsec != NULL | |
3875 | && (dynsec->flags & SEC_LOAD) == 0) | |
3876 | dynsec = NULL; | |
3877 | ||
3878 | /* Deal with -Ttext or something similar such that the first section | |
3879 | is not adjacent to the program headers. This is an | |
3880 | approximation, since at this point we don't know exactly how many | |
3881 | program headers we will need. */ | |
3882 | if (count > 0) | |
252b5132 | 3883 | { |
12bd6957 | 3884 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 3885 | |
62d7a5f6 | 3886 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 3887 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 3888 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 3889 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
3890 | || (sections[0]->lma & addr_mask) < phdr_size |
3891 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
3892 | < phdr_size % maxpagesize) | |
3893 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
8ded5a0f | 3894 | phdr_in_segment = FALSE; |
252b5132 RH |
3895 | } |
3896 | ||
8ded5a0f | 3897 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 3898 | { |
8ded5a0f AM |
3899 | asection *hdr; |
3900 | bfd_boolean new_segment; | |
3901 | ||
3902 | hdr = *hdrpp; | |
3903 | ||
3904 | /* See if this section and the last one will fit in the same | |
3905 | segment. */ | |
3906 | ||
3907 | if (last_hdr == NULL) | |
3908 | { | |
3909 | /* If we don't have a segment yet, then we don't need a new | |
3910 | one (we build the last one after this loop). */ | |
3911 | new_segment = FALSE; | |
3912 | } | |
3913 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
3914 | { | |
3915 | /* If this section has a different relation between the | |
3916 | virtual address and the load address, then we need a new | |
3917 | segment. */ | |
3918 | new_segment = TRUE; | |
3919 | } | |
b5599592 AM |
3920 | else if (hdr->lma < last_hdr->lma + last_size |
3921 | || last_hdr->lma + last_size < last_hdr->lma) | |
3922 | { | |
3923 | /* If this section has a load address that makes it overlap | |
3924 | the previous section, then we need a new segment. */ | |
3925 | new_segment = TRUE; | |
3926 | } | |
39948a60 NC |
3927 | /* In the next test we have to be careful when last_hdr->lma is close |
3928 | to the end of the address space. If the aligned address wraps | |
3929 | around to the start of the address space, then there are no more | |
3930 | pages left in memory and it is OK to assume that the current | |
3931 | section can be included in the current segment. */ | |
3932 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
3933 | > last_hdr->lma) | |
3934 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4ff73856 | 3935 | <= hdr->lma)) |
8ded5a0f AM |
3936 | { |
3937 | /* If putting this section in this segment would force us to | |
3938 | skip a page in the segment, then we need a new segment. */ | |
3939 | new_segment = TRUE; | |
3940 | } | |
3941 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
3942 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) | |
3943 | { | |
3944 | /* We don't want to put a loadable section after a | |
3945 | nonloadable section in the same segment. | |
3946 | Consider .tbss sections as loadable for this purpose. */ | |
3947 | new_segment = TRUE; | |
3948 | } | |
3949 | else if ((abfd->flags & D_PAGED) == 0) | |
3950 | { | |
3951 | /* If the file is not demand paged, which means that we | |
3952 | don't require the sections to be correctly aligned in the | |
3953 | file, then there is no other reason for a new segment. */ | |
3954 | new_segment = FALSE; | |
3955 | } | |
3956 | else if (! writable | |
3957 | && (hdr->flags & SEC_READONLY) == 0 | |
8d06853e AM |
3958 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) |
3959 | != (hdr->lma & -maxpagesize))) | |
8ded5a0f AM |
3960 | { |
3961 | /* We don't want to put a writable section in a read only | |
3962 | segment, unless they are on the same page in memory | |
3963 | anyhow. We already know that the last section does not | |
3964 | bring us past the current section on the page, so the | |
3965 | only case in which the new section is not on the same | |
3966 | page as the previous section is when the previous section | |
3967 | ends precisely on a page boundary. */ | |
3968 | new_segment = TRUE; | |
3969 | } | |
3970 | else | |
3971 | { | |
3972 | /* Otherwise, we can use the same segment. */ | |
3973 | new_segment = FALSE; | |
3974 | } | |
3975 | ||
2889e75b | 3976 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
3977 | if (last_hdr != NULL |
3978 | && info != NULL | |
3979 | && info->callbacks->override_segment_assignment != NULL) | |
3980 | new_segment | |
3981 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
3982 | last_hdr, | |
3983 | new_segment); | |
2889e75b | 3984 | |
8ded5a0f AM |
3985 | if (! new_segment) |
3986 | { | |
3987 | if ((hdr->flags & SEC_READONLY) == 0) | |
3988 | writable = TRUE; | |
3989 | last_hdr = hdr; | |
3990 | /* .tbss sections effectively have zero size. */ | |
3991 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
3992 | != SEC_THREAD_LOCAL) | |
3993 | last_size = hdr->size; | |
3994 | else | |
3995 | last_size = 0; | |
3996 | continue; | |
3997 | } | |
3998 | ||
3999 | /* We need a new program segment. We must create a new program | |
4000 | header holding all the sections from phdr_index until hdr. */ | |
4001 | ||
4002 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4003 | if (m == NULL) | |
4004 | goto error_return; | |
4005 | ||
4006 | *pm = m; | |
4007 | pm = &m->next; | |
4008 | ||
252b5132 | 4009 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4010 | writable = TRUE; |
8ded5a0f AM |
4011 | else |
4012 | writable = FALSE; | |
4013 | ||
baaff79e JJ |
4014 | last_hdr = hdr; |
4015 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 4016 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 4017 | last_size = hdr->size; |
baaff79e JJ |
4018 | else |
4019 | last_size = 0; | |
8ded5a0f AM |
4020 | phdr_index = i; |
4021 | phdr_in_segment = FALSE; | |
252b5132 RH |
4022 | } |
4023 | ||
86b2281f AM |
4024 | /* Create a final PT_LOAD program segment, but not if it's just |
4025 | for .tbss. */ | |
4026 | if (last_hdr != NULL | |
4027 | && (i - phdr_index != 1 | |
4028 | || ((last_hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4029 | != SEC_THREAD_LOCAL))) | |
8ded5a0f AM |
4030 | { |
4031 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4032 | if (m == NULL) | |
4033 | goto error_return; | |
252b5132 | 4034 | |
8ded5a0f AM |
4035 | *pm = m; |
4036 | pm = &m->next; | |
4037 | } | |
252b5132 | 4038 | |
8ded5a0f AM |
4039 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4040 | if (dynsec != NULL) | |
4041 | { | |
4042 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4043 | if (m == NULL) | |
4044 | goto error_return; | |
4045 | *pm = m; | |
4046 | pm = &m->next; | |
4047 | } | |
252b5132 | 4048 | |
1c5265b5 JJ |
4049 | /* For each batch of consecutive loadable .note sections, |
4050 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4051 | because if we link together nonloadable .note sections and | |
4052 | loadable .note sections, we will generate two .note sections | |
4053 | in the output file. FIXME: Using names for section types is | |
4054 | bogus anyhow. */ | |
8ded5a0f AM |
4055 | for (s = abfd->sections; s != NULL; s = s->next) |
4056 | { | |
4057 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4058 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4059 | { |
1c5265b5 | 4060 | asection *s2; |
91d6fa6a NC |
4061 | |
4062 | count = 1; | |
8ded5a0f | 4063 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4064 | if (s->alignment_power == 2) |
4065 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4066 | { |
4067 | if (s2->next->alignment_power == 2 | |
4068 | && (s2->next->flags & SEC_LOAD) != 0 | |
4069 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4070 | && align_power (s2->lma + s2->size, 2) |
4071 | == s2->next->lma) | |
55b581a6 JJ |
4072 | count++; |
4073 | else | |
4074 | break; | |
4075 | } | |
1c5265b5 | 4076 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4077 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4078 | if (m == NULL) |
4079 | goto error_return; | |
4080 | m->next = NULL; | |
4081 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4082 | m->count = count; |
4083 | while (count > 1) | |
4084 | { | |
4085 | m->sections[m->count - count--] = s; | |
4086 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4087 | s = s->next; | |
4088 | } | |
4089 | m->sections[m->count - 1] = s; | |
4090 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4091 | *pm = m; |
4092 | pm = &m->next; | |
4093 | } | |
4094 | if (s->flags & SEC_THREAD_LOCAL) | |
4095 | { | |
4096 | if (! tls_count) | |
4097 | first_tls = s; | |
4098 | tls_count++; | |
4099 | } | |
4100 | } | |
252b5132 | 4101 | |
8ded5a0f AM |
4102 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4103 | if (tls_count > 0) | |
4104 | { | |
8ded5a0f AM |
4105 | amt = sizeof (struct elf_segment_map); |
4106 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4107 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4108 | if (m == NULL) |
4109 | goto error_return; | |
4110 | m->next = NULL; | |
4111 | m->p_type = PT_TLS; | |
4112 | m->count = tls_count; | |
4113 | /* Mandated PF_R. */ | |
4114 | m->p_flags = PF_R; | |
4115 | m->p_flags_valid = 1; | |
91d6fa6a | 4116 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f AM |
4117 | { |
4118 | BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL); | |
4119 | m->sections[i] = first_tls; | |
4120 | first_tls = first_tls->next; | |
4121 | } | |
252b5132 | 4122 | |
8ded5a0f AM |
4123 | *pm = m; |
4124 | pm = &m->next; | |
4125 | } | |
252b5132 | 4126 | |
8ded5a0f AM |
4127 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
4128 | segment. */ | |
12bd6957 | 4129 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
4130 | if (eh_frame_hdr != NULL |
4131 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 4132 | { |
dc810e39 | 4133 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4134 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4135 | if (m == NULL) |
4136 | goto error_return; | |
4137 | m->next = NULL; | |
8ded5a0f | 4138 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 4139 | m->count = 1; |
8ded5a0f | 4140 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
4141 | |
4142 | *pm = m; | |
4143 | pm = &m->next; | |
4144 | } | |
13ae64f3 | 4145 | |
12bd6957 | 4146 | if (elf_stack_flags (abfd)) |
13ae64f3 | 4147 | { |
8ded5a0f | 4148 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4149 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4150 | if (m == NULL) |
4151 | goto error_return; | |
4152 | m->next = NULL; | |
2b05f1b7 | 4153 | m->p_type = PT_GNU_STACK; |
12bd6957 | 4154 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 4155 | m->p_align = bed->stack_align; |
8ded5a0f | 4156 | m->p_flags_valid = 1; |
04c3a755 NS |
4157 | m->p_align_valid = m->p_align != 0; |
4158 | if (info->stacksize > 0) | |
4159 | { | |
4160 | m->p_size = info->stacksize; | |
4161 | m->p_size_valid = 1; | |
4162 | } | |
252b5132 | 4163 | |
8ded5a0f AM |
4164 | *pm = m; |
4165 | pm = &m->next; | |
4166 | } | |
65765700 | 4167 | |
ceae84aa | 4168 | if (info != NULL && info->relro) |
8ded5a0f | 4169 | { |
f210dcff L |
4170 | for (m = mfirst; m != NULL; m = m->next) |
4171 | { | |
3832a4d8 AM |
4172 | if (m->p_type == PT_LOAD |
4173 | && m->count != 0 | |
4174 | && m->sections[0]->vma >= info->relro_start | |
4175 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 4176 | { |
3832a4d8 AM |
4177 | i = m->count; |
4178 | while (--i != (unsigned) -1) | |
4179 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4180 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4181 | break; | |
4182 | ||
4183 | if (i == (unsigned) -1) | |
4184 | continue; | |
65765700 | 4185 | |
3832a4d8 AM |
4186 | if (m->sections[i]->vma + m->sections[i]->size |
4187 | >= info->relro_end) | |
f210dcff L |
4188 | break; |
4189 | } | |
be01b344 | 4190 | } |
f210dcff L |
4191 | |
4192 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
4193 | if (m != NULL) | |
4194 | { | |
4195 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4196 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
4197 | if (m == NULL) |
4198 | goto error_return; | |
4199 | m->next = NULL; | |
4200 | m->p_type = PT_GNU_RELRO; | |
4201 | m->p_flags = PF_R; | |
4202 | m->p_flags_valid = 1; | |
4203 | ||
4204 | *pm = m; | |
4205 | pm = &m->next; | |
4206 | } | |
8ded5a0f | 4207 | } |
9ee5e499 | 4208 | |
8ded5a0f | 4209 | free (sections); |
12bd6957 | 4210 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
4211 | } |
4212 | ||
3dea8fca | 4213 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 4214 | return FALSE; |
8c37241b | 4215 | |
12bd6957 | 4216 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 4217 | ++count; |
12bd6957 | 4218 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 4219 | |
b34976b6 | 4220 | return TRUE; |
252b5132 RH |
4221 | |
4222 | error_return: | |
4223 | if (sections != NULL) | |
4224 | free (sections); | |
b34976b6 | 4225 | return FALSE; |
252b5132 RH |
4226 | } |
4227 | ||
4228 | /* Sort sections by address. */ | |
4229 | ||
4230 | static int | |
217aa764 | 4231 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
4232 | { |
4233 | const asection *sec1 = *(const asection **) arg1; | |
4234 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 4235 | bfd_size_type size1, size2; |
252b5132 RH |
4236 | |
4237 | /* Sort by LMA first, since this is the address used to | |
4238 | place the section into a segment. */ | |
4239 | if (sec1->lma < sec2->lma) | |
4240 | return -1; | |
4241 | else if (sec1->lma > sec2->lma) | |
4242 | return 1; | |
4243 | ||
4244 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
4245 | the same, and this will do nothing. */ | |
4246 | if (sec1->vma < sec2->vma) | |
4247 | return -1; | |
4248 | else if (sec1->vma > sec2->vma) | |
4249 | return 1; | |
4250 | ||
4251 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
4252 | ||
07c6e936 | 4253 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
4254 | |
4255 | if (TOEND (sec1)) | |
4256 | { | |
4257 | if (TOEND (sec2)) | |
00a7cdc5 NC |
4258 | { |
4259 | /* If the indicies are the same, do not return 0 | |
4260 | here, but continue to try the next comparison. */ | |
4261 | if (sec1->target_index - sec2->target_index != 0) | |
4262 | return sec1->target_index - sec2->target_index; | |
4263 | } | |
252b5132 RH |
4264 | else |
4265 | return 1; | |
4266 | } | |
00a7cdc5 | 4267 | else if (TOEND (sec2)) |
252b5132 RH |
4268 | return -1; |
4269 | ||
4270 | #undef TOEND | |
4271 | ||
00a7cdc5 NC |
4272 | /* Sort by size, to put zero sized sections |
4273 | before others at the same address. */ | |
252b5132 | 4274 | |
eea6121a AM |
4275 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
4276 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
4277 | |
4278 | if (size1 < size2) | |
252b5132 | 4279 | return -1; |
eecdbe52 | 4280 | if (size1 > size2) |
252b5132 RH |
4281 | return 1; |
4282 | ||
4283 | return sec1->target_index - sec2->target_index; | |
4284 | } | |
4285 | ||
340b6d91 AC |
4286 | /* Ian Lance Taylor writes: |
4287 | ||
4288 | We shouldn't be using % with a negative signed number. That's just | |
4289 | not good. We have to make sure either that the number is not | |
4290 | negative, or that the number has an unsigned type. When the types | |
4291 | are all the same size they wind up as unsigned. When file_ptr is a | |
4292 | larger signed type, the arithmetic winds up as signed long long, | |
4293 | which is wrong. | |
4294 | ||
4295 | What we're trying to say here is something like ``increase OFF by | |
4296 | the least amount that will cause it to be equal to the VMA modulo | |
4297 | the page size.'' */ | |
4298 | /* In other words, something like: | |
4299 | ||
4300 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
4301 | off_offset = off % bed->maxpagesize; | |
4302 | if (vma_offset < off_offset) | |
4303 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
4304 | else | |
4305 | adjustment = vma_offset - off_offset; | |
08a40648 | 4306 | |
340b6d91 AC |
4307 | which can can be collapsed into the expression below. */ |
4308 | ||
4309 | static file_ptr | |
4310 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
4311 | { | |
4312 | return ((vma - off) % maxpagesize); | |
4313 | } | |
4314 | ||
6d33f217 L |
4315 | static void |
4316 | print_segment_map (const struct elf_segment_map *m) | |
4317 | { | |
4318 | unsigned int j; | |
4319 | const char *pt = get_segment_type (m->p_type); | |
4320 | char buf[32]; | |
4321 | ||
4322 | if (pt == NULL) | |
4323 | { | |
4324 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
4325 | sprintf (buf, "LOPROC+%7.7x", | |
4326 | (unsigned int) (m->p_type - PT_LOPROC)); | |
4327 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
4328 | sprintf (buf, "LOOS+%7.7x", | |
4329 | (unsigned int) (m->p_type - PT_LOOS)); | |
4330 | else | |
4331 | snprintf (buf, sizeof (buf), "%8.8x", | |
4332 | (unsigned int) m->p_type); | |
4333 | pt = buf; | |
4334 | } | |
4a97a0e5 | 4335 | fflush (stdout); |
6d33f217 L |
4336 | fprintf (stderr, "%s:", pt); |
4337 | for (j = 0; j < m->count; j++) | |
4338 | fprintf (stderr, " %s", m->sections [j]->name); | |
4339 | putc ('\n',stderr); | |
4a97a0e5 | 4340 | fflush (stderr); |
6d33f217 L |
4341 | } |
4342 | ||
32812159 AM |
4343 | static bfd_boolean |
4344 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
4345 | { | |
4346 | void *buf; | |
4347 | bfd_boolean ret; | |
4348 | ||
4349 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
4350 | return FALSE; | |
4351 | buf = bfd_zmalloc (len); | |
4352 | if (buf == NULL) | |
4353 | return FALSE; | |
4354 | ret = bfd_bwrite (buf, len, abfd) == len; | |
4355 | free (buf); | |
4356 | return ret; | |
4357 | } | |
4358 | ||
252b5132 RH |
4359 | /* Assign file positions to the sections based on the mapping from |
4360 | sections to segments. This function also sets up some fields in | |
f3520d2f | 4361 | the file header. */ |
252b5132 | 4362 | |
b34976b6 | 4363 | static bfd_boolean |
f3520d2f AM |
4364 | assign_file_positions_for_load_sections (bfd *abfd, |
4365 | struct bfd_link_info *link_info) | |
252b5132 RH |
4366 | { |
4367 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 4368 | struct elf_segment_map *m; |
252b5132 | 4369 | Elf_Internal_Phdr *phdrs; |
252b5132 | 4370 | Elf_Internal_Phdr *p; |
02bf8d82 | 4371 | file_ptr off; |
3f570048 | 4372 | bfd_size_type maxpagesize; |
f3520d2f | 4373 | unsigned int alloc; |
0920dee7 | 4374 | unsigned int i, j; |
2b0bc088 | 4375 | bfd_vma header_pad = 0; |
252b5132 | 4376 | |
e36284ab | 4377 | if (link_info == NULL |
ceae84aa | 4378 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 4379 | return FALSE; |
252b5132 | 4380 | |
8ded5a0f | 4381 | alloc = 0; |
12bd6957 | 4382 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
4383 | { |
4384 | ++alloc; | |
4385 | if (m->header_size) | |
4386 | header_pad = m->header_size; | |
4387 | } | |
252b5132 | 4388 | |
82f2dbf7 NC |
4389 | if (alloc) |
4390 | { | |
4391 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
4392 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
4393 | } | |
4394 | else | |
4395 | { | |
4396 | /* PR binutils/12467. */ | |
4397 | elf_elfheader (abfd)->e_phoff = 0; | |
4398 | elf_elfheader (abfd)->e_phentsize = 0; | |
4399 | } | |
d324f6d6 | 4400 | |
8ded5a0f | 4401 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 4402 | |
12bd6957 AM |
4403 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
4404 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 4405 | else |
12bd6957 | 4406 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 4407 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
4408 | |
4409 | if (alloc == 0) | |
f3520d2f | 4410 | { |
12bd6957 | 4411 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 4412 | return TRUE; |
f3520d2f | 4413 | } |
252b5132 | 4414 | |
12bd6957 | 4415 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
4416 | see assign_file_positions_except_relocs, so make sure we have |
4417 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
4418 | The variable alloc contains the computed need, while |
4419 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
4420 | layout. |
4421 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
4422 | where the layout is forced to according to a larger size in the | |
4423 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 4424 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 4425 | == 0); |
a50b1753 NC |
4426 | phdrs = (Elf_Internal_Phdr *) |
4427 | bfd_zalloc2 (abfd, | |
12bd6957 | 4428 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
a50b1753 | 4429 | sizeof (Elf_Internal_Phdr)); |
f3520d2f | 4430 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 4431 | if (phdrs == NULL) |
b34976b6 | 4432 | return FALSE; |
252b5132 | 4433 | |
3f570048 AM |
4434 | maxpagesize = 1; |
4435 | if ((abfd->flags & D_PAGED) != 0) | |
4436 | maxpagesize = bed->maxpagesize; | |
4437 | ||
252b5132 RH |
4438 | off = bed->s->sizeof_ehdr; |
4439 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4440 | if (header_pad < (bfd_vma) off) |
4441 | header_pad = 0; | |
4442 | else | |
4443 | header_pad -= off; | |
4444 | off += header_pad; | |
252b5132 | 4445 | |
12bd6957 | 4446 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 4447 | m != NULL; |
0920dee7 | 4448 | m = m->next, p++, j++) |
252b5132 | 4449 | { |
252b5132 | 4450 | asection **secpp; |
bf988460 AM |
4451 | bfd_vma off_adjust; |
4452 | bfd_boolean no_contents; | |
252b5132 RH |
4453 | |
4454 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 4455 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
4456 | not be done to the PT_NOTE section of a corefile, which may |
4457 | contain several pseudo-sections artificially created by bfd. | |
4458 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
4459 | if (m->count > 1 |
4460 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 4461 | && m->p_type == PT_NOTE)) |
252b5132 RH |
4462 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
4463 | elf_sort_sections); | |
4464 | ||
b301b248 AM |
4465 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
4466 | number of sections with contents contributing to both p_filesz | |
4467 | and p_memsz, followed by a number of sections with no contents | |
4468 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 4469 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 4470 | p->p_type = m->p_type; |
28a7f3e7 | 4471 | p->p_flags = m->p_flags; |
252b5132 | 4472 | |
3f570048 AM |
4473 | if (m->count == 0) |
4474 | p->p_vaddr = 0; | |
4475 | else | |
3271a814 | 4476 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
4477 | |
4478 | if (m->p_paddr_valid) | |
4479 | p->p_paddr = m->p_paddr; | |
4480 | else if (m->count == 0) | |
4481 | p->p_paddr = 0; | |
4482 | else | |
08a40648 | 4483 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
4484 | |
4485 | if (p->p_type == PT_LOAD | |
4486 | && (abfd->flags & D_PAGED) != 0) | |
4487 | { | |
4488 | /* p_align in demand paged PT_LOAD segments effectively stores | |
4489 | the maximum page size. When copying an executable with | |
4490 | objcopy, we set m->p_align from the input file. Use this | |
4491 | value for maxpagesize rather than bed->maxpagesize, which | |
4492 | may be different. Note that we use maxpagesize for PT_TLS | |
4493 | segment alignment later in this function, so we are relying | |
4494 | on at least one PT_LOAD segment appearing before a PT_TLS | |
4495 | segment. */ | |
4496 | if (m->p_align_valid) | |
4497 | maxpagesize = m->p_align; | |
4498 | ||
4499 | p->p_align = maxpagesize; | |
4500 | } | |
3271a814 NS |
4501 | else if (m->p_align_valid) |
4502 | p->p_align = m->p_align; | |
e970b90a DJ |
4503 | else if (m->count == 0) |
4504 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
4505 | else |
4506 | p->p_align = 0; | |
4507 | ||
bf988460 AM |
4508 | no_contents = FALSE; |
4509 | off_adjust = 0; | |
252b5132 | 4510 | if (p->p_type == PT_LOAD |
b301b248 | 4511 | && m->count > 0) |
252b5132 | 4512 | { |
b301b248 | 4513 | bfd_size_type align; |
a49e53ed | 4514 | unsigned int align_power = 0; |
b301b248 | 4515 | |
3271a814 NS |
4516 | if (m->p_align_valid) |
4517 | align = p->p_align; | |
4518 | else | |
252b5132 | 4519 | { |
3271a814 NS |
4520 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4521 | { | |
4522 | unsigned int secalign; | |
08a40648 | 4523 | |
3271a814 NS |
4524 | secalign = bfd_get_section_alignment (abfd, *secpp); |
4525 | if (secalign > align_power) | |
4526 | align_power = secalign; | |
4527 | } | |
4528 | align = (bfd_size_type) 1 << align_power; | |
4529 | if (align < maxpagesize) | |
4530 | align = maxpagesize; | |
b301b248 | 4531 | } |
252b5132 | 4532 | |
02bf8d82 AM |
4533 | for (i = 0; i < m->count; i++) |
4534 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
4535 | /* If we aren't making room for this section, then | |
4536 | it must be SHT_NOBITS regardless of what we've | |
4537 | set via struct bfd_elf_special_section. */ | |
4538 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
4539 | ||
bf988460 | 4540 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
4541 | sections. */ |
4542 | no_contents = TRUE; | |
4543 | for (i = 0; i < m->count; i++) | |
4544 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
4545 | { | |
4546 | no_contents = FALSE; | |
4547 | break; | |
4548 | } | |
bf988460 | 4549 | |
85cfcbfb | 4550 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
bf988460 AM |
4551 | off += off_adjust; |
4552 | if (no_contents) | |
4553 | { | |
4554 | /* We shouldn't need to align the segment on disk since | |
4555 | the segment doesn't need file space, but the gABI | |
4556 | arguably requires the alignment and glibc ld.so | |
4557 | checks it. So to comply with the alignment | |
4558 | requirement but not waste file space, we adjust | |
4559 | p_offset for just this segment. (OFF_ADJUST is | |
4560 | subtracted from OFF later.) This may put p_offset | |
4561 | past the end of file, but that shouldn't matter. */ | |
4562 | } | |
4563 | else | |
4564 | off_adjust = 0; | |
252b5132 | 4565 | } |
b1a6d0b1 NC |
4566 | /* Make sure the .dynamic section is the first section in the |
4567 | PT_DYNAMIC segment. */ | |
4568 | else if (p->p_type == PT_DYNAMIC | |
4569 | && m->count > 1 | |
4570 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
4571 | { | |
4572 | _bfd_error_handler | |
b301b248 AM |
4573 | (_("%B: The first section in the PT_DYNAMIC segment is not the .dynamic section"), |
4574 | abfd); | |
b1a6d0b1 NC |
4575 | bfd_set_error (bfd_error_bad_value); |
4576 | return FALSE; | |
4577 | } | |
3f001e84 JK |
4578 | /* Set the note section type to SHT_NOTE. */ |
4579 | else if (p->p_type == PT_NOTE) | |
4580 | for (i = 0; i < m->count; i++) | |
4581 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 4582 | |
252b5132 RH |
4583 | p->p_offset = 0; |
4584 | p->p_filesz = 0; | |
4585 | p->p_memsz = 0; | |
4586 | ||
4587 | if (m->includes_filehdr) | |
4588 | { | |
bf988460 | 4589 | if (!m->p_flags_valid) |
252b5132 | 4590 | p->p_flags |= PF_R; |
252b5132 RH |
4591 | p->p_filesz = bed->s->sizeof_ehdr; |
4592 | p->p_memsz = bed->s->sizeof_ehdr; | |
4593 | if (m->count > 0) | |
4594 | { | |
252b5132 RH |
4595 | if (p->p_vaddr < (bfd_vma) off) |
4596 | { | |
caf47ea6 | 4597 | (*_bfd_error_handler) |
b301b248 AM |
4598 | (_("%B: Not enough room for program headers, try linking with -N"), |
4599 | abfd); | |
252b5132 | 4600 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4601 | return FALSE; |
252b5132 RH |
4602 | } |
4603 | ||
4604 | p->p_vaddr -= off; | |
bf988460 | 4605 | if (!m->p_paddr_valid) |
252b5132 RH |
4606 | p->p_paddr -= off; |
4607 | } | |
252b5132 RH |
4608 | } |
4609 | ||
4610 | if (m->includes_phdrs) | |
4611 | { | |
bf988460 | 4612 | if (!m->p_flags_valid) |
252b5132 RH |
4613 | p->p_flags |= PF_R; |
4614 | ||
f3520d2f | 4615 | if (!m->includes_filehdr) |
252b5132 RH |
4616 | { |
4617 | p->p_offset = bed->s->sizeof_ehdr; | |
4618 | ||
4619 | if (m->count > 0) | |
4620 | { | |
252b5132 | 4621 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 4622 | if (!m->p_paddr_valid) |
252b5132 RH |
4623 | p->p_paddr -= off - p->p_offset; |
4624 | } | |
252b5132 RH |
4625 | } |
4626 | ||
4627 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
4628 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4629 | if (m->count) |
4630 | { | |
4631 | p->p_filesz += header_pad; | |
4632 | p->p_memsz += header_pad; | |
4633 | } | |
252b5132 RH |
4634 | } |
4635 | ||
4636 | if (p->p_type == PT_LOAD | |
4637 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
4638 | { | |
bf988460 | 4639 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 4640 | p->p_offset = off; |
252b5132 RH |
4641 | else |
4642 | { | |
4643 | file_ptr adjust; | |
4644 | ||
4645 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
4646 | if (!no_contents) |
4647 | p->p_filesz += adjust; | |
252b5132 RH |
4648 | p->p_memsz += adjust; |
4649 | } | |
4650 | } | |
4651 | ||
1ea63fd2 AM |
4652 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
4653 | maps. Set filepos for sections in PT_LOAD segments, and in | |
4654 | core files, for sections in PT_NOTE segments. | |
4655 | assign_file_positions_for_non_load_sections will set filepos | |
4656 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
4657 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4658 | { | |
4659 | asection *sec; | |
252b5132 | 4660 | bfd_size_type align; |
627b32bc | 4661 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
4662 | |
4663 | sec = *secpp; | |
02bf8d82 | 4664 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 4665 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 4666 | |
88967714 AM |
4667 | if ((p->p_type == PT_LOAD |
4668 | || p->p_type == PT_TLS) | |
4669 | && (this_hdr->sh_type != SHT_NOBITS | |
4670 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
4671 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
4672 | || p->p_type == PT_TLS)))) | |
252b5132 | 4673 | { |
b5599592 AM |
4674 | bfd_vma p_start = p->p_paddr; |
4675 | bfd_vma p_end = p_start + p->p_memsz; | |
4676 | bfd_vma s_start = sec->lma; | |
4677 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 4678 | |
a2d1e028 L |
4679 | if (adjust != 0 |
4680 | && (s_start < p_end | |
4681 | || p_end < p_start)) | |
252b5132 | 4682 | { |
88967714 | 4683 | (*_bfd_error_handler) |
b5599592 AM |
4684 | (_("%B: section %A lma %#lx adjusted to %#lx"), abfd, sec, |
4685 | (unsigned long) s_start, (unsigned long) p_end); | |
88967714 | 4686 | adjust = 0; |
b5599592 | 4687 | sec->lma = p_end; |
1cfb7d1e | 4688 | } |
3ac9b6c9 | 4689 | p->p_memsz += adjust; |
1cfb7d1e | 4690 | |
88967714 AM |
4691 | if (this_hdr->sh_type != SHT_NOBITS) |
4692 | { | |
32812159 AM |
4693 | if (p->p_filesz + adjust < p->p_memsz) |
4694 | { | |
4695 | /* We have a PROGBITS section following NOBITS ones. | |
4696 | Allocate file space for the NOBITS section(s) and | |
4697 | zero it. */ | |
4698 | adjust = p->p_memsz - p->p_filesz; | |
4699 | if (!write_zeros (abfd, off, adjust)) | |
4700 | return FALSE; | |
4701 | } | |
88967714 AM |
4702 | off += adjust; |
4703 | p->p_filesz += adjust; | |
252b5132 | 4704 | } |
252b5132 RH |
4705 | } |
4706 | ||
4707 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
4708 | { | |
b301b248 AM |
4709 | /* The section at i == 0 is the one that actually contains |
4710 | everything. */ | |
4a938328 MS |
4711 | if (i == 0) |
4712 | { | |
627b32bc | 4713 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
4714 | off += this_hdr->sh_size; |
4715 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
4716 | p->p_memsz = 0; |
4717 | p->p_align = 1; | |
252b5132 | 4718 | } |
4a938328 | 4719 | else |
252b5132 | 4720 | { |
b301b248 | 4721 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 4722 | sec->filepos = 0; |
eea6121a | 4723 | sec->size = 0; |
b301b248 AM |
4724 | sec->flags = 0; |
4725 | continue; | |
252b5132 | 4726 | } |
252b5132 RH |
4727 | } |
4728 | else | |
4729 | { | |
1e951488 | 4730 | if (p->p_type == PT_LOAD) |
b301b248 | 4731 | { |
1e951488 AM |
4732 | this_hdr->sh_offset = sec->filepos = off; |
4733 | if (this_hdr->sh_type != SHT_NOBITS) | |
4734 | off += this_hdr->sh_size; | |
4735 | } | |
4736 | else if (this_hdr->sh_type == SHT_NOBITS | |
4737 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
4738 | && this_hdr->sh_offset == 0) | |
4739 | { | |
4740 | /* This is a .tbss section that didn't get a PT_LOAD. | |
4741 | (See _bfd_elf_map_sections_to_segments "Create a | |
4742 | final PT_LOAD".) Set sh_offset to the value it | |
4743 | would have if we had created a zero p_filesz and | |
4744 | p_memsz PT_LOAD header for the section. This | |
4745 | also makes the PT_TLS header have the same | |
4746 | p_offset value. */ | |
4747 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
4748 | off, align); | |
4749 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 4750 | } |
252b5132 | 4751 | |
02bf8d82 | 4752 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 4753 | { |
6a3cd2b4 | 4754 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
4755 | /* A load section without SHF_ALLOC is something like |
4756 | a note section in a PT_NOTE segment. These take | |
4757 | file space but are not loaded into memory. */ | |
4758 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 4759 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 4760 | } |
6a3cd2b4 | 4761 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 4762 | { |
6a3cd2b4 AM |
4763 | if (p->p_type == PT_TLS) |
4764 | p->p_memsz += this_hdr->sh_size; | |
4765 | ||
4766 | /* .tbss is special. It doesn't contribute to p_memsz of | |
4767 | normal segments. */ | |
4768 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
4769 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
4770 | } |
4771 | ||
b10a8ae0 L |
4772 | if (align > p->p_align |
4773 | && !m->p_align_valid | |
4774 | && (p->p_type != PT_LOAD | |
4775 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
4776 | p->p_align = align; |
4777 | } | |
4778 | ||
bf988460 | 4779 | if (!m->p_flags_valid) |
252b5132 RH |
4780 | { |
4781 | p->p_flags |= PF_R; | |
02bf8d82 | 4782 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 4783 | p->p_flags |= PF_X; |
02bf8d82 | 4784 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
4785 | p->p_flags |= PF_W; |
4786 | } | |
4787 | } | |
bf988460 | 4788 | off -= off_adjust; |
0920dee7 | 4789 | |
7c928300 AM |
4790 | /* Check that all sections are in a PT_LOAD segment. |
4791 | Don't check funky gdb generated core files. */ | |
4792 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
4793 | { |
4794 | bfd_boolean check_vma = TRUE; | |
4795 | ||
4796 | for (i = 1; i < m->count; i++) | |
4797 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
4798 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
4799 | ->this_hdr), p) != 0 | |
4800 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
4801 | ->this_hdr), p) != 0) | |
0920dee7 | 4802 | { |
9a83a553 AM |
4803 | /* Looks like we have overlays packed into the segment. */ |
4804 | check_vma = FALSE; | |
4805 | break; | |
0920dee7 | 4806 | } |
9a83a553 AM |
4807 | |
4808 | for (i = 0; i < m->count; i++) | |
4809 | { | |
4810 | Elf_Internal_Shdr *this_hdr; | |
4811 | asection *sec; | |
4812 | ||
4813 | sec = m->sections[i]; | |
4814 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
4815 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
4816 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 AM |
4817 | { |
4818 | (*_bfd_error_handler) | |
4819 | (_("%B: section `%A' can't be allocated in segment %d"), | |
4820 | abfd, sec, j); | |
4821 | print_segment_map (m); | |
4822 | } | |
4823 | } | |
4824 | } | |
252b5132 RH |
4825 | } |
4826 | ||
12bd6957 | 4827 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
4828 | return TRUE; |
4829 | } | |
4830 | ||
4831 | /* Assign file positions for the other sections. */ | |
4832 | ||
4833 | static bfd_boolean | |
4834 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
4835 | struct bfd_link_info *link_info) | |
4836 | { | |
4837 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
4838 | Elf_Internal_Shdr **i_shdrpp; | |
4839 | Elf_Internal_Shdr **hdrpp; | |
4840 | Elf_Internal_Phdr *phdrs; | |
4841 | Elf_Internal_Phdr *p; | |
4842 | struct elf_segment_map *m; | |
62655c7b | 4843 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
4844 | bfd_vma filehdr_vaddr, filehdr_paddr; |
4845 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
4846 | file_ptr off; | |
4847 | unsigned int num_sec; | |
4848 | unsigned int i; | |
4849 | unsigned int count; | |
4850 | ||
5c182d5f AM |
4851 | i_shdrpp = elf_elfsections (abfd); |
4852 | num_sec = elf_numsections (abfd); | |
12bd6957 | 4853 | off = elf_next_file_pos (abfd); |
5c182d5f AM |
4854 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
4855 | { | |
5c182d5f AM |
4856 | Elf_Internal_Shdr *hdr; |
4857 | ||
4858 | hdr = *hdrpp; | |
4859 | if (hdr->bfd_section != NULL | |
252e386e AM |
4860 | && (hdr->bfd_section->filepos != 0 |
4861 | || (hdr->sh_type == SHT_NOBITS | |
4862 | && hdr->contents == NULL))) | |
627b32bc | 4863 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
4864 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
4865 | { | |
e8d2ba53 AM |
4866 | if (hdr->sh_size != 0) |
4867 | (*_bfd_error_handler) | |
4868 | (_("%B: warning: allocated section `%s' not in segment"), | |
4869 | abfd, | |
4870 | (hdr->bfd_section == NULL | |
4871 | ? "*unknown*" | |
4872 | : hdr->bfd_section->name)); | |
3ba71138 L |
4873 | /* We don't need to page align empty sections. */ |
4874 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
4875 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
4876 | bed->maxpagesize); | |
4877 | else | |
4878 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
4879 | hdr->sh_addralign); | |
4880 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
4881 | FALSE); | |
4882 | } | |
4883 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
4884 | && hdr->bfd_section == NULL) | |
12bd6957 AM |
4885 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
4886 | || hdr == i_shdrpp[elf_symtab_shndx (abfd)] | |
4887 | || hdr == i_shdrpp[elf_strtab_sec (abfd)]) | |
5c182d5f AM |
4888 | hdr->sh_offset = -1; |
4889 | else | |
4890 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
4891 | } |
4892 | ||
252b5132 RH |
4893 | /* Now that we have set the section file positions, we can set up |
4894 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
4895 | count = 0; |
4896 | filehdr_vaddr = 0; | |
4897 | filehdr_paddr = 0; | |
4898 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
4899 | phdrs_paddr = 0; | |
62655c7b | 4900 | hdrs_segment = NULL; |
f3520d2f | 4901 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 4902 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
4903 | { |
4904 | ++count; | |
4905 | if (p->p_type != PT_LOAD) | |
4906 | continue; | |
4907 | ||
4908 | if (m->includes_filehdr) | |
4909 | { | |
4910 | filehdr_vaddr = p->p_vaddr; | |
4911 | filehdr_paddr = p->p_paddr; | |
4912 | } | |
4913 | if (m->includes_phdrs) | |
4914 | { | |
4915 | phdrs_vaddr = p->p_vaddr; | |
4916 | phdrs_paddr = p->p_paddr; | |
4917 | if (m->includes_filehdr) | |
4918 | { | |
62655c7b | 4919 | hdrs_segment = m; |
f3520d2f AM |
4920 | phdrs_vaddr += bed->s->sizeof_ehdr; |
4921 | phdrs_paddr += bed->s->sizeof_ehdr; | |
4922 | } | |
4923 | } | |
4924 | } | |
4925 | ||
62655c7b RM |
4926 | if (hdrs_segment != NULL && link_info != NULL) |
4927 | { | |
4928 | /* There is a segment that contains both the file headers and the | |
4929 | program headers, so provide a symbol __ehdr_start pointing there. | |
4930 | A program can use this to examine itself robustly. */ | |
4931 | ||
4932 | struct elf_link_hash_entry *hash | |
4933 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
4934 | FALSE, FALSE, TRUE); | |
4935 | /* If the symbol was referenced and not defined, define it. */ | |
4936 | if (hash != NULL | |
4937 | && (hash->root.type == bfd_link_hash_new | |
4938 | || hash->root.type == bfd_link_hash_undefined | |
4939 | || hash->root.type == bfd_link_hash_undefweak | |
4940 | || hash->root.type == bfd_link_hash_common)) | |
4941 | { | |
4942 | asection *s = NULL; | |
4943 | if (hdrs_segment->count != 0) | |
4944 | /* The segment contains sections, so use the first one. */ | |
4945 | s = hdrs_segment->sections[0]; | |
4946 | else | |
4947 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 4948 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
4949 | if (m->count != 0) |
4950 | { | |
4951 | s = m->sections[0]; | |
4952 | break; | |
4953 | } | |
4954 | ||
4955 | if (s != NULL) | |
4956 | { | |
4957 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
4958 | hash->root.u.def.section = s; | |
4959 | } | |
4960 | else | |
4961 | { | |
4962 | hash->root.u.def.value = filehdr_vaddr; | |
4963 | hash->root.u.def.section = bfd_abs_section_ptr; | |
4964 | } | |
4965 | ||
4966 | hash->root.type = bfd_link_hash_defined; | |
4967 | hash->def_regular = 1; | |
4968 | hash->non_elf = 0; | |
4969 | } | |
4970 | } | |
4971 | ||
12bd6957 | 4972 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 4973 | { |
129af99f | 4974 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 4975 | { |
b84a33b5 | 4976 | const Elf_Internal_Phdr *lp; |
3146fac4 | 4977 | struct elf_segment_map *lm; |
1ea63fd2 | 4978 | |
129af99f | 4979 | if (link_info != NULL) |
8c37241b | 4980 | { |
129af99f AS |
4981 | /* During linking the range of the RELRO segment is passed |
4982 | in link_info. */ | |
12bd6957 | 4983 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
4984 | lm != NULL; |
4985 | lm = lm->next, lp++) | |
8c37241b JJ |
4986 | { |
4987 | if (lp->p_type == PT_LOAD | |
b84a33b5 | 4988 | && lp->p_vaddr < link_info->relro_end |
3146fac4 AM |
4989 | && lp->p_vaddr + lp->p_filesz >= link_info->relro_end |
4990 | && lm->count != 0 | |
4991 | && lm->sections[0]->vma >= link_info->relro_start) | |
8c37241b JJ |
4992 | break; |
4993 | } | |
8981c88a L |
4994 | |
4995 | /* PR ld/14207. If the RELRO segment doesn't fit in the | |
4996 | LOAD segment, it should be removed. */ | |
3146fac4 | 4997 | BFD_ASSERT (lm != NULL); |
8c37241b | 4998 | } |
129af99f AS |
4999 | else |
5000 | { | |
5001 | /* Otherwise we are copying an executable or shared | |
b84a33b5 | 5002 | library, but we need to use the same linker logic. */ |
129af99f AS |
5003 | for (lp = phdrs; lp < phdrs + count; ++lp) |
5004 | { | |
5005 | if (lp->p_type == PT_LOAD | |
5006 | && lp->p_paddr == p->p_paddr) | |
5007 | break; | |
5008 | } | |
b84a33b5 AM |
5009 | } |
5010 | ||
5011 | if (lp < phdrs + count) | |
5012 | { | |
5013 | p->p_vaddr = lp->p_vaddr; | |
5014 | p->p_paddr = lp->p_paddr; | |
5015 | p->p_offset = lp->p_offset; | |
5016 | if (link_info != NULL) | |
5017 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
5018 | else if (m->p_size_valid) | |
5019 | p->p_filesz = m->p_size; | |
129af99f AS |
5020 | else |
5021 | abort (); | |
b84a33b5 | 5022 | p->p_memsz = p->p_filesz; |
f3944f72 L |
5023 | /* Preserve the alignment and flags if they are valid. The |
5024 | gold linker generates RW/4 for the PT_GNU_RELRO section. | |
5025 | It is better for objcopy/strip to honor these attributes | |
5026 | otherwise gdb will choke when using separate debug files. | |
5027 | */ | |
5028 | if (!m->p_align_valid) | |
5029 | p->p_align = 1; | |
5030 | if (!m->p_flags_valid) | |
5031 | p->p_flags = (lp->p_flags & ~PF_W); | |
129af99f | 5032 | } |
9433b9b1 | 5033 | else |
b84a33b5 AM |
5034 | { |
5035 | memset (p, 0, sizeof *p); | |
5036 | p->p_type = PT_NULL; | |
5037 | } | |
129af99f | 5038 | } |
04c3a755 NS |
5039 | else if (p->p_type == PT_GNU_STACK) |
5040 | { | |
5041 | if (m->p_size_valid) | |
5042 | p->p_memsz = m->p_size; | |
5043 | } | |
129af99f AS |
5044 | else if (m->count != 0) |
5045 | { | |
5046 | if (p->p_type != PT_LOAD | |
5047 | && (p->p_type != PT_NOTE | |
5048 | || bfd_get_format (abfd) != bfd_core)) | |
5049 | { | |
129af99f AS |
5050 | BFD_ASSERT (!m->includes_filehdr && !m->includes_phdrs); |
5051 | ||
86b2281f | 5052 | p->p_filesz = 0; |
129af99f | 5053 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
5054 | for (i = m->count; i-- != 0;) |
5055 | { | |
5056 | asection *sect = m->sections[i]; | |
5057 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
5058 | if (hdr->sh_type != SHT_NOBITS) | |
5059 | { | |
5060 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
5061 | + hdr->sh_size); | |
5062 | break; | |
5063 | } | |
5064 | } | |
129af99f AS |
5065 | } |
5066 | } | |
5067 | else if (m->includes_filehdr) | |
5068 | { | |
5069 | p->p_vaddr = filehdr_vaddr; | |
5070 | if (! m->p_paddr_valid) | |
5071 | p->p_paddr = filehdr_paddr; | |
5072 | } | |
5073 | else if (m->includes_phdrs) | |
5074 | { | |
5075 | p->p_vaddr = phdrs_vaddr; | |
5076 | if (! m->p_paddr_valid) | |
5077 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
5078 | } |
5079 | } | |
5080 | ||
12bd6957 | 5081 | elf_next_file_pos (abfd) = off; |
252b5132 | 5082 | |
b34976b6 | 5083 | return TRUE; |
252b5132 RH |
5084 | } |
5085 | ||
252b5132 RH |
5086 | /* Work out the file positions of all the sections. This is called by |
5087 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
5088 | VMAs must be known before this is called. | |
5089 | ||
e0638f70 AM |
5090 | Reloc sections come in two flavours: Those processed specially as |
5091 | "side-channel" data attached to a section to which they apply, and | |
5092 | those that bfd doesn't process as relocations. The latter sort are | |
5093 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
5094 | consider the former sort here, unless they form part of the loadable | |
5095 | image. Reloc sections not assigned here will be handled later by | |
5096 | assign_file_positions_for_relocs. | |
252b5132 RH |
5097 | |
5098 | We also don't set the positions of the .symtab and .strtab here. */ | |
5099 | ||
b34976b6 | 5100 | static bfd_boolean |
c84fca4d AO |
5101 | assign_file_positions_except_relocs (bfd *abfd, |
5102 | struct bfd_link_info *link_info) | |
252b5132 | 5103 | { |
5c182d5f AM |
5104 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
5105 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5106 | file_ptr off; |
9c5bfbb7 | 5107 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5108 | |
5109 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
5110 | && bfd_get_format (abfd) != bfd_core) | |
5111 | { | |
5c182d5f AM |
5112 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
5113 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
5114 | Elf_Internal_Shdr **hdrpp; |
5115 | unsigned int i; | |
5116 | ||
5117 | /* Start after the ELF header. */ | |
5118 | off = i_ehdrp->e_ehsize; | |
5119 | ||
5120 | /* We are not creating an executable, which means that we are | |
5121 | not creating a program header, and that the actual order of | |
5122 | the sections in the file is unimportant. */ | |
9ad5cbcf | 5123 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
5124 | { |
5125 | Elf_Internal_Shdr *hdr; | |
5126 | ||
5127 | hdr = *hdrpp; | |
e0638f70 AM |
5128 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
5129 | && hdr->bfd_section == NULL) | |
12bd6957 AM |
5130 | || i == elf_onesymtab (abfd) |
5131 | || i == elf_symtab_shndx (abfd) | |
5132 | || i == elf_strtab_sec (abfd)) | |
252b5132 RH |
5133 | { |
5134 | hdr->sh_offset = -1; | |
252b5132 | 5135 | } |
9ad5cbcf | 5136 | else |
b34976b6 | 5137 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 RH |
5138 | } |
5139 | } | |
5140 | else | |
5141 | { | |
f3520d2f AM |
5142 | unsigned int alloc; |
5143 | ||
252b5132 | 5144 | /* Assign file positions for the loaded sections based on the |
08a40648 | 5145 | assignment of sections to segments. */ |
f3520d2f AM |
5146 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
5147 | return FALSE; | |
5148 | ||
5149 | /* And for non-load sections. */ | |
5150 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
5151 | return FALSE; | |
5152 | ||
e36284ab AM |
5153 | if (bed->elf_backend_modify_program_headers != NULL) |
5154 | { | |
5155 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
5156 | return FALSE; | |
5157 | } | |
5158 | ||
58e7ebac L |
5159 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
5160 | if (link_info != NULL | |
5161 | && link_info->executable | |
5162 | && link_info->shared) | |
5163 | { | |
5164 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
5165 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
5166 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
5167 | ||
5168 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
5169 | bfd_vma p_vaddr = (bfd_vma) -1; | |
5170 | for (; segment < end_segment; segment++) | |
5171 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
5172 | p_vaddr = segment->p_vaddr; | |
5173 | ||
5174 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
5175 | segments is non-zero. */ | |
5176 | if (p_vaddr) | |
5177 | i_ehdrp->e_type = ET_EXEC; | |
5178 | } | |
5179 | ||
f3520d2f | 5180 | /* Write out the program headers. */ |
12bd6957 | 5181 | alloc = elf_program_header_size (abfd) / bed->s->sizeof_phdr; |
f3520d2f AM |
5182 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
5183 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) | |
b34976b6 | 5184 | return FALSE; |
252b5132 | 5185 | |
12bd6957 | 5186 | off = elf_next_file_pos (abfd); |
252b5132 RH |
5187 | } |
5188 | ||
5189 | /* Place the section headers. */ | |
45d6a902 | 5190 | off = align_file_position (off, 1 << bed->s->log_file_align); |
252b5132 RH |
5191 | i_ehdrp->e_shoff = off; |
5192 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
5193 | ||
12bd6957 | 5194 | elf_next_file_pos (abfd) = off; |
252b5132 | 5195 | |
b34976b6 | 5196 | return TRUE; |
252b5132 RH |
5197 | } |
5198 | ||
b34976b6 | 5199 | static bfd_boolean |
217aa764 | 5200 | prep_headers (bfd *abfd) |
252b5132 | 5201 | { |
3d540e93 | 5202 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 5203 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 5204 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5205 | |
5206 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5207 | |
2b0f7ef9 | 5208 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 5209 | if (shstrtab == NULL) |
b34976b6 | 5210 | return FALSE; |
252b5132 RH |
5211 | |
5212 | elf_shstrtab (abfd) = shstrtab; | |
5213 | ||
5214 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
5215 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
5216 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
5217 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
5218 | ||
5219 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
5220 | i_ehdrp->e_ident[EI_DATA] = | |
5221 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
5222 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
5223 | ||
252b5132 RH |
5224 | if ((abfd->flags & DYNAMIC) != 0) |
5225 | i_ehdrp->e_type = ET_DYN; | |
5226 | else if ((abfd->flags & EXEC_P) != 0) | |
5227 | i_ehdrp->e_type = ET_EXEC; | |
5228 | else if (bfd_get_format (abfd) == bfd_core) | |
5229 | i_ehdrp->e_type = ET_CORE; | |
5230 | else | |
5231 | i_ehdrp->e_type = ET_REL; | |
5232 | ||
5233 | switch (bfd_get_arch (abfd)) | |
5234 | { | |
5235 | case bfd_arch_unknown: | |
5236 | i_ehdrp->e_machine = EM_NONE; | |
5237 | break; | |
aa4f99bb AO |
5238 | |
5239 | /* There used to be a long list of cases here, each one setting | |
5240 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
5241 | in the corresponding bfd definition. To avoid duplication, | |
5242 | the switch was removed. Machines that need special handling | |
5243 | can generally do it in elf_backend_final_write_processing(), | |
5244 | unless they need the information earlier than the final write. | |
5245 | Such need can generally be supplied by replacing the tests for | |
5246 | e_machine with the conditions used to determine it. */ | |
252b5132 | 5247 | default: |
9c5bfbb7 AM |
5248 | i_ehdrp->e_machine = bed->elf_machine_code; |
5249 | } | |
aa4f99bb | 5250 | |
252b5132 RH |
5251 | i_ehdrp->e_version = bed->s->ev_current; |
5252 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
5253 | ||
c044fabd | 5254 | /* No program header, for now. */ |
252b5132 RH |
5255 | i_ehdrp->e_phoff = 0; |
5256 | i_ehdrp->e_phentsize = 0; | |
5257 | i_ehdrp->e_phnum = 0; | |
5258 | ||
c044fabd | 5259 | /* Each bfd section is section header entry. */ |
252b5132 RH |
5260 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
5261 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
5262 | ||
c044fabd | 5263 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 5264 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
5265 | /* It all happens later. */ |
5266 | ; | |
252b5132 RH |
5267 | else |
5268 | { | |
5269 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
5270 | i_ehdrp->e_phoff = 0; |
5271 | } | |
5272 | ||
5273 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 5274 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 5275 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 5276 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 5277 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 5278 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 RH |
5279 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
5280 | || elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 | |
5281 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) | |
b34976b6 | 5282 | return FALSE; |
252b5132 | 5283 | |
b34976b6 | 5284 | return TRUE; |
252b5132 RH |
5285 | } |
5286 | ||
5287 | /* Assign file positions for all the reloc sections which are not part | |
5288 | of the loadable file image. */ | |
5289 | ||
5290 | void | |
217aa764 | 5291 | _bfd_elf_assign_file_positions_for_relocs (bfd *abfd) |
252b5132 RH |
5292 | { |
5293 | file_ptr off; | |
9ad5cbcf | 5294 | unsigned int i, num_sec; |
252b5132 RH |
5295 | Elf_Internal_Shdr **shdrpp; |
5296 | ||
12bd6957 | 5297 | off = elf_next_file_pos (abfd); |
252b5132 | 5298 | |
9ad5cbcf AM |
5299 | num_sec = elf_numsections (abfd); |
5300 | for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++) | |
252b5132 RH |
5301 | { |
5302 | Elf_Internal_Shdr *shdrp; | |
5303 | ||
5304 | shdrp = *shdrpp; | |
5305 | if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA) | |
5306 | && shdrp->sh_offset == -1) | |
b34976b6 | 5307 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); |
252b5132 RH |
5308 | } |
5309 | ||
12bd6957 | 5310 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
5311 | } |
5312 | ||
b34976b6 | 5313 | bfd_boolean |
217aa764 | 5314 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 5315 | { |
9c5bfbb7 | 5316 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5317 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 5318 | bfd_boolean failed; |
9ad5cbcf | 5319 | unsigned int count, num_sec; |
30e8ee25 | 5320 | struct elf_obj_tdata *t; |
252b5132 RH |
5321 | |
5322 | if (! abfd->output_has_begun | |
217aa764 | 5323 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 5324 | return FALSE; |
252b5132 RH |
5325 | |
5326 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 5327 | |
b34976b6 | 5328 | failed = FALSE; |
252b5132 RH |
5329 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
5330 | if (failed) | |
b34976b6 | 5331 | return FALSE; |
252b5132 RH |
5332 | |
5333 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |
5334 | ||
c044fabd | 5335 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
5336 | num_sec = elf_numsections (abfd); |
5337 | for (count = 1; count < num_sec; count++) | |
252b5132 RH |
5338 | { |
5339 | if (bed->elf_backend_section_processing) | |
5340 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
5341 | if (i_shdrp[count]->contents) | |
5342 | { | |
dc810e39 AM |
5343 | bfd_size_type amt = i_shdrp[count]->sh_size; |
5344 | ||
252b5132 | 5345 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 5346 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 5347 | return FALSE; |
252b5132 RH |
5348 | } |
5349 | } | |
5350 | ||
5351 | /* Write out the section header names. */ | |
30e8ee25 | 5352 | t = elf_tdata (abfd); |
26ae6d5e | 5353 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 5354 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 5355 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 5356 | return FALSE; |
252b5132 RH |
5357 | |
5358 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 5359 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 5360 | |
ff59fc36 RM |
5361 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
5362 | return FALSE; | |
5363 | ||
5364 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
5365 | if (t->o->build_id.after_write_object_contents != NULL) |
5366 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
5367 | |
5368 | return TRUE; | |
252b5132 RH |
5369 | } |
5370 | ||
b34976b6 | 5371 | bfd_boolean |
217aa764 | 5372 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 5373 | { |
c044fabd | 5374 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
5375 | return _bfd_elf_write_object_contents (abfd); |
5376 | } | |
c044fabd KH |
5377 | |
5378 | /* Given a section, search the header to find them. */ | |
5379 | ||
cb33740c | 5380 | unsigned int |
198beae2 | 5381 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 5382 | { |
9c5bfbb7 | 5383 | const struct elf_backend_data *bed; |
91d6fa6a | 5384 | unsigned int sec_index; |
252b5132 | 5385 | |
9ad5cbcf AM |
5386 | if (elf_section_data (asect) != NULL |
5387 | && elf_section_data (asect)->this_idx != 0) | |
5388 | return elf_section_data (asect)->this_idx; | |
5389 | ||
5390 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 5391 | sec_index = SHN_ABS; |
af746e92 | 5392 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 5393 | sec_index = SHN_COMMON; |
af746e92 | 5394 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 5395 | sec_index = SHN_UNDEF; |
af746e92 | 5396 | else |
91d6fa6a | 5397 | sec_index = SHN_BAD; |
252b5132 | 5398 | |
af746e92 | 5399 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
5400 | if (bed->elf_backend_section_from_bfd_section) |
5401 | { | |
91d6fa6a | 5402 | int retval = sec_index; |
9ad5cbcf | 5403 | |
af746e92 AM |
5404 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
5405 | return retval; | |
252b5132 RH |
5406 | } |
5407 | ||
91d6fa6a | 5408 | if (sec_index == SHN_BAD) |
af746e92 | 5409 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 5410 | |
91d6fa6a | 5411 | return sec_index; |
252b5132 RH |
5412 | } |
5413 | ||
5414 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
5415 | on error. */ | |
5416 | ||
5417 | int | |
217aa764 | 5418 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
5419 | { |
5420 | asymbol *asym_ptr = *asym_ptr_ptr; | |
5421 | int idx; | |
5422 | flagword flags = asym_ptr->flags; | |
5423 | ||
5424 | /* When gas creates relocations against local labels, it creates its | |
5425 | own symbol for the section, but does put the symbol into the | |
5426 | symbol chain, so udata is 0. When the linker is generating | |
5427 | relocatable output, this section symbol may be for one of the | |
5428 | input sections rather than the output section. */ | |
5429 | if (asym_ptr->udata.i == 0 | |
5430 | && (flags & BSF_SECTION_SYM) | |
5431 | && asym_ptr->section) | |
5432 | { | |
5372391b | 5433 | asection *sec; |
252b5132 RH |
5434 | int indx; |
5435 | ||
5372391b AM |
5436 | sec = asym_ptr->section; |
5437 | if (sec->owner != abfd && sec->output_section != NULL) | |
5438 | sec = sec->output_section; | |
5439 | if (sec->owner == abfd | |
5440 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 5441 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
5442 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
5443 | } | |
5444 | ||
5445 | idx = asym_ptr->udata.i; | |
5446 | ||
5447 | if (idx == 0) | |
5448 | { | |
5449 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 5450 | which is used in a relocation entry. */ |
252b5132 | 5451 | (*_bfd_error_handler) |
d003868e AM |
5452 | (_("%B: symbol `%s' required but not present"), |
5453 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
5454 | bfd_set_error (bfd_error_no_symbols); |
5455 | return -1; | |
5456 | } | |
5457 | ||
5458 | #if DEBUG & 4 | |
5459 | { | |
5460 | fprintf (stderr, | |
9ccb8af9 AM |
5461 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx\n", |
5462 | (long) asym_ptr, asym_ptr->name, idx, (long) flags); | |
252b5132 RH |
5463 | fflush (stderr); |
5464 | } | |
5465 | #endif | |
5466 | ||
5467 | return idx; | |
5468 | } | |
5469 | ||
84d1d650 | 5470 | /* Rewrite program header information. */ |
252b5132 | 5471 | |
b34976b6 | 5472 | static bfd_boolean |
84d1d650 | 5473 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 5474 | { |
b34976b6 AM |
5475 | Elf_Internal_Ehdr *iehdr; |
5476 | struct elf_segment_map *map; | |
5477 | struct elf_segment_map *map_first; | |
5478 | struct elf_segment_map **pointer_to_map; | |
5479 | Elf_Internal_Phdr *segment; | |
5480 | asection *section; | |
5481 | unsigned int i; | |
5482 | unsigned int num_segments; | |
5483 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 5484 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
5485 | bfd_vma maxpagesize; |
5486 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
5487 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 5488 | const struct elf_backend_data *bed; |
bc67d8a6 | 5489 | |
caf47ea6 | 5490 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
5491 | iehdr = elf_elfheader (ibfd); |
5492 | ||
bc67d8a6 | 5493 | map_first = NULL; |
c044fabd | 5494 | pointer_to_map = &map_first; |
252b5132 RH |
5495 | |
5496 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
5497 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
5498 | ||
5499 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
5500 | #define SEGMENT_END(segment, start) \ |
5501 | (start + (segment->p_memsz > segment->p_filesz \ | |
5502 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 5503 | |
eecdbe52 JJ |
5504 | #define SECTION_SIZE(section, segment) \ |
5505 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
5506 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 5507 | ? section->size : 0) |
eecdbe52 | 5508 | |
b34976b6 | 5509 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5510 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
5511 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
5512 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 5513 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5514 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 5515 | |
b34976b6 | 5516 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5517 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
5518 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
5519 | (section->lma >= base \ | |
eecdbe52 | 5520 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5521 | <= SEGMENT_END (segment, base))) |
252b5132 | 5522 | |
0efc80c8 L |
5523 | /* Handle PT_NOTE segment. */ |
5524 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 5525 | (p->p_type == PT_NOTE \ |
0efc80c8 | 5526 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 5527 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5528 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5529 | <= p->p_offset + p->p_filesz)) |
252b5132 | 5530 | |
0efc80c8 L |
5531 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
5532 | etc. */ | |
5533 | #define IS_COREFILE_NOTE(p, s) \ | |
5534 | (IS_NOTE (p, s) \ | |
5535 | && bfd_get_format (ibfd) == bfd_core \ | |
5536 | && s->vma == 0 \ | |
5537 | && s->lma == 0) | |
5538 | ||
252b5132 RH |
5539 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
5540 | linker, which generates a PT_INTERP section with p_vaddr and | |
5541 | p_memsz set to 0. */ | |
aecc8f8a AM |
5542 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
5543 | (p->p_vaddr == 0 \ | |
5544 | && p->p_paddr == 0 \ | |
5545 | && p->p_memsz == 0 \ | |
5546 | && p->p_filesz > 0 \ | |
5547 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 5548 | && s->size > 0 \ |
aecc8f8a | 5549 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5550 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5551 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 5552 | |
bc67d8a6 NC |
5553 | /* Decide if the given section should be included in the given segment. |
5554 | A section will be included if: | |
f5ffc919 | 5555 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 5556 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 5557 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 5558 | segment. |
bc67d8a6 | 5559 | 3. There is an output section associated with it, |
eecdbe52 | 5560 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 5561 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 5562 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
5563 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
5564 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 5565 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 5566 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
5567 | ((((segment->p_paddr \ |
5568 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
5569 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
5570 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 5571 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
5572 | && segment->p_type != PT_GNU_STACK \ |
5573 | && (segment->p_type != PT_TLS \ | |
5574 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
5575 | && (segment->p_type == PT_LOAD \ | |
5576 | || segment->p_type == PT_TLS \ | |
5577 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
5578 | && (segment->p_type != PT_DYNAMIC \ | |
5579 | || SECTION_SIZE (section, segment) > 0 \ | |
5580 | || (segment->p_paddr \ | |
5581 | ? segment->p_paddr != section->lma \ | |
5582 | : segment->p_vaddr != section->vma) \ | |
5583 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
5584 | == 0)) \ | |
0067a569 | 5585 | && !section->segment_mark) |
bc67d8a6 | 5586 | |
9f17e2a6 L |
5587 | /* If the output section of a section in the input segment is NULL, |
5588 | it is removed from the corresponding output segment. */ | |
5589 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
5590 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
5591 | && section->output_section != NULL) | |
5592 | ||
b34976b6 | 5593 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
5594 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
5595 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
5596 | ||
5597 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
5598 | their VMA address ranges and their LMA address ranges overlap. | |
5599 | It is possible to have overlapping VMA ranges without overlapping LMA | |
5600 | ranges. RedBoot images for example can have both .data and .bss mapped | |
5601 | to the same VMA range, but with the .data section mapped to a different | |
5602 | LMA. */ | |
aecc8f8a | 5603 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 5604 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 5605 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 5606 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 5607 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
5608 | |
5609 | /* Initialise the segment mark field. */ | |
5610 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 5611 | section->segment_mark = FALSE; |
bc67d8a6 | 5612 | |
5c44b38e AM |
5613 | /* The Solaris linker creates program headers in which all the |
5614 | p_paddr fields are zero. When we try to objcopy or strip such a | |
5615 | file, we get confused. Check for this case, and if we find it | |
5616 | don't set the p_paddr_valid fields. */ | |
5617 | p_paddr_valid = FALSE; | |
5618 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5619 | i < num_segments; | |
5620 | i++, segment++) | |
5621 | if (segment->p_paddr != 0) | |
5622 | { | |
5623 | p_paddr_valid = TRUE; | |
5624 | break; | |
5625 | } | |
5626 | ||
252b5132 | 5627 | /* Scan through the segments specified in the program header |
bc67d8a6 | 5628 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 5629 | in the loadable segments. These can be created by weird |
aecc8f8a | 5630 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
5631 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
5632 | i < num_segments; | |
c044fabd | 5633 | i++, segment++) |
252b5132 | 5634 | { |
252b5132 | 5635 | unsigned int j; |
c044fabd | 5636 | Elf_Internal_Phdr *segment2; |
252b5132 | 5637 | |
aecc8f8a AM |
5638 | if (segment->p_type == PT_INTERP) |
5639 | for (section = ibfd->sections; section; section = section->next) | |
5640 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
5641 | { | |
5642 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 5643 | assignment code will work. */ |
aecc8f8a AM |
5644 | segment->p_vaddr = section->vma; |
5645 | break; | |
5646 | } | |
5647 | ||
bc67d8a6 | 5648 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
5649 | { |
5650 | /* Remove PT_GNU_RELRO segment. */ | |
5651 | if (segment->p_type == PT_GNU_RELRO) | |
5652 | segment->p_type = PT_NULL; | |
5653 | continue; | |
5654 | } | |
c044fabd | 5655 | |
bc67d8a6 | 5656 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 5657 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
5658 | { |
5659 | bfd_signed_vma extra_length; | |
c044fabd | 5660 | |
bc67d8a6 | 5661 | if (segment2->p_type != PT_LOAD |
0067a569 | 5662 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 5663 | continue; |
c044fabd | 5664 | |
bc67d8a6 NC |
5665 | /* Merge the two segments together. */ |
5666 | if (segment2->p_vaddr < segment->p_vaddr) | |
5667 | { | |
c044fabd | 5668 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 5669 | SEGMENT. */ |
0067a569 AM |
5670 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
5671 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 5672 | |
bc67d8a6 NC |
5673 | if (extra_length > 0) |
5674 | { | |
0067a569 | 5675 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
5676 | segment2->p_filesz += extra_length; |
5677 | } | |
c044fabd | 5678 | |
bc67d8a6 | 5679 | segment->p_type = PT_NULL; |
c044fabd | 5680 | |
bc67d8a6 NC |
5681 | /* Since we have deleted P we must restart the outer loop. */ |
5682 | i = 0; | |
5683 | segment = elf_tdata (ibfd)->phdr; | |
5684 | break; | |
5685 | } | |
5686 | else | |
5687 | { | |
c044fabd | 5688 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 5689 | SEGMENT2. */ |
0067a569 AM |
5690 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
5691 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 5692 | |
bc67d8a6 NC |
5693 | if (extra_length > 0) |
5694 | { | |
0067a569 | 5695 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
5696 | segment->p_filesz += extra_length; |
5697 | } | |
c044fabd | 5698 | |
bc67d8a6 NC |
5699 | segment2->p_type = PT_NULL; |
5700 | } | |
5701 | } | |
5702 | } | |
c044fabd | 5703 | |
bc67d8a6 NC |
5704 | /* The second scan attempts to assign sections to segments. */ |
5705 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5706 | i < num_segments; | |
0067a569 | 5707 | i++, segment++) |
bc67d8a6 | 5708 | { |
0067a569 AM |
5709 | unsigned int section_count; |
5710 | asection **sections; | |
5711 | asection *output_section; | |
5712 | unsigned int isec; | |
5713 | bfd_vma matching_lma; | |
5714 | bfd_vma suggested_lma; | |
5715 | unsigned int j; | |
dc810e39 | 5716 | bfd_size_type amt; |
0067a569 AM |
5717 | asection *first_section; |
5718 | bfd_boolean first_matching_lma; | |
5719 | bfd_boolean first_suggested_lma; | |
bc67d8a6 NC |
5720 | |
5721 | if (segment->p_type == PT_NULL) | |
5722 | continue; | |
c044fabd | 5723 | |
9f17e2a6 | 5724 | first_section = NULL; |
bc67d8a6 | 5725 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
5726 | for (section = ibfd->sections, section_count = 0; |
5727 | section != NULL; | |
5728 | section = section->next) | |
9f17e2a6 L |
5729 | { |
5730 | /* Find the first section in the input segment, which may be | |
5731 | removed from the corresponding output segment. */ | |
5732 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
5733 | { | |
5734 | if (first_section == NULL) | |
5735 | first_section = section; | |
5736 | if (section->output_section != NULL) | |
5737 | ++section_count; | |
5738 | } | |
5739 | } | |
811072d8 | 5740 | |
b5f852ea NC |
5741 | /* Allocate a segment map big enough to contain |
5742 | all of the sections we have selected. */ | |
dc810e39 AM |
5743 | amt = sizeof (struct elf_segment_map); |
5744 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 5745 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 5746 | if (map == NULL) |
b34976b6 | 5747 | return FALSE; |
252b5132 RH |
5748 | |
5749 | /* Initialise the fields of the segment map. Default to | |
5750 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
5751 | map->next = NULL; |
5752 | map->p_type = segment->p_type; | |
5753 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 5754 | map->p_flags_valid = 1; |
55d55ac7 | 5755 | |
9f17e2a6 L |
5756 | /* If the first section in the input segment is removed, there is |
5757 | no need to preserve segment physical address in the corresponding | |
5758 | output segment. */ | |
945c025a | 5759 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
5760 | { |
5761 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 5762 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 5763 | } |
252b5132 RH |
5764 | |
5765 | /* Determine if this segment contains the ELF file header | |
5766 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
5767 | map->includes_filehdr = (segment->p_offset == 0 |
5768 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 5769 | map->includes_phdrs = 0; |
252b5132 | 5770 | |
0067a569 | 5771 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 5772 | { |
bc67d8a6 NC |
5773 | map->includes_phdrs = |
5774 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
5775 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
5776 | >= ((bfd_vma) iehdr->e_phoff |
5777 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 5778 | |
bc67d8a6 | 5779 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 5780 | phdr_included = TRUE; |
252b5132 RH |
5781 | } |
5782 | ||
bc67d8a6 | 5783 | if (section_count == 0) |
252b5132 RH |
5784 | { |
5785 | /* Special segments, such as the PT_PHDR segment, may contain | |
5786 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 NC |
5787 | something. They are allowed by the ELF spec however, so only |
5788 | a warning is produced. */ | |
bc67d8a6 | 5789 | if (segment->p_type == PT_LOAD) |
0067a569 AM |
5790 | (*_bfd_error_handler) (_("%B: warning: Empty loadable segment" |
5791 | " detected, is this intentional ?\n"), | |
5792 | ibfd); | |
252b5132 | 5793 | |
bc67d8a6 | 5794 | map->count = 0; |
c044fabd KH |
5795 | *pointer_to_map = map; |
5796 | pointer_to_map = &map->next; | |
252b5132 RH |
5797 | |
5798 | continue; | |
5799 | } | |
5800 | ||
5801 | /* Now scan the sections in the input BFD again and attempt | |
5802 | to add their corresponding output sections to the segment map. | |
5803 | The problem here is how to handle an output section which has | |
5804 | been moved (ie had its LMA changed). There are four possibilities: | |
5805 | ||
5806 | 1. None of the sections have been moved. | |
5807 | In this case we can continue to use the segment LMA from the | |
5808 | input BFD. | |
5809 | ||
5810 | 2. All of the sections have been moved by the same amount. | |
5811 | In this case we can change the segment's LMA to match the LMA | |
5812 | of the first section. | |
5813 | ||
5814 | 3. Some of the sections have been moved, others have not. | |
5815 | In this case those sections which have not been moved can be | |
5816 | placed in the current segment which will have to have its size, | |
5817 | and possibly its LMA changed, and a new segment or segments will | |
5818 | have to be created to contain the other sections. | |
5819 | ||
b5f852ea | 5820 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
5821 | In this case we can change the segment's LMA to match the LMA |
5822 | of the first section and we will have to create a new segment | |
5823 | or segments to contain the other sections. | |
5824 | ||
5825 | In order to save time, we allocate an array to hold the section | |
5826 | pointers that we are interested in. As these sections get assigned | |
5827 | to a segment, they are removed from this array. */ | |
5828 | ||
a50b1753 | 5829 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 5830 | if (sections == NULL) |
b34976b6 | 5831 | return FALSE; |
252b5132 RH |
5832 | |
5833 | /* Step One: Scan for segment vs section LMA conflicts. | |
5834 | Also add the sections to the section array allocated above. | |
5835 | Also add the sections to the current segment. In the common | |
5836 | case, where the sections have not been moved, this means that | |
5837 | we have completely filled the segment, and there is nothing | |
5838 | more to do. */ | |
252b5132 | 5839 | isec = 0; |
72730e0c | 5840 | matching_lma = 0; |
252b5132 | 5841 | suggested_lma = 0; |
0067a569 AM |
5842 | first_matching_lma = TRUE; |
5843 | first_suggested_lma = TRUE; | |
252b5132 | 5844 | |
147d51c2 | 5845 | for (section = ibfd->sections; |
bc67d8a6 NC |
5846 | section != NULL; |
5847 | section = section->next) | |
147d51c2 L |
5848 | if (section == first_section) |
5849 | break; | |
5850 | ||
5851 | for (j = 0; section != NULL; section = section->next) | |
252b5132 | 5852 | { |
caf47ea6 | 5853 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 5854 | { |
bc67d8a6 NC |
5855 | output_section = section->output_section; |
5856 | ||
0067a569 | 5857 | sections[j++] = section; |
252b5132 RH |
5858 | |
5859 | /* The Solaris native linker always sets p_paddr to 0. | |
5860 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
5861 | correct value. Note - some backends require that |
5862 | p_paddr be left as zero. */ | |
5c44b38e | 5863 | if (!p_paddr_valid |
4455705d | 5864 | && segment->p_vaddr != 0 |
0067a569 | 5865 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 5866 | && isec == 0 |
bc67d8a6 | 5867 | && output_section->lma != 0 |
0067a569 AM |
5868 | && output_section->vma == (segment->p_vaddr |
5869 | + (map->includes_filehdr | |
5870 | ? iehdr->e_ehsize | |
5871 | : 0) | |
5872 | + (map->includes_phdrs | |
5873 | ? (iehdr->e_phnum | |
5874 | * iehdr->e_phentsize) | |
5875 | : 0))) | |
bc67d8a6 | 5876 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
5877 | |
5878 | /* Match up the physical address of the segment with the | |
5879 | LMA address of the output section. */ | |
bc67d8a6 | 5880 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 5881 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
5882 | || (bed->want_p_paddr_set_to_zero |
5883 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 5884 | { |
0067a569 AM |
5885 | if (first_matching_lma || output_section->lma < matching_lma) |
5886 | { | |
5887 | matching_lma = output_section->lma; | |
5888 | first_matching_lma = FALSE; | |
5889 | } | |
252b5132 RH |
5890 | |
5891 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 5892 | then it does not overlap any other section within that |
252b5132 | 5893 | segment. */ |
0067a569 AM |
5894 | map->sections[isec++] = output_section; |
5895 | } | |
5896 | else if (first_suggested_lma) | |
5897 | { | |
5898 | suggested_lma = output_section->lma; | |
5899 | first_suggested_lma = FALSE; | |
252b5132 | 5900 | } |
147d51c2 L |
5901 | |
5902 | if (j == section_count) | |
5903 | break; | |
252b5132 RH |
5904 | } |
5905 | } | |
5906 | ||
bc67d8a6 | 5907 | BFD_ASSERT (j == section_count); |
252b5132 RH |
5908 | |
5909 | /* Step Two: Adjust the physical address of the current segment, | |
5910 | if necessary. */ | |
bc67d8a6 | 5911 | if (isec == section_count) |
252b5132 RH |
5912 | { |
5913 | /* All of the sections fitted within the segment as currently | |
5914 | specified. This is the default case. Add the segment to | |
5915 | the list of built segments and carry on to process the next | |
5916 | program header in the input BFD. */ | |
bc67d8a6 | 5917 | map->count = section_count; |
c044fabd KH |
5918 | *pointer_to_map = map; |
5919 | pointer_to_map = &map->next; | |
08a40648 | 5920 | |
5c44b38e AM |
5921 | if (p_paddr_valid |
5922 | && !bed->want_p_paddr_set_to_zero | |
147d51c2 | 5923 | && matching_lma != map->p_paddr |
5c44b38e AM |
5924 | && !map->includes_filehdr |
5925 | && !map->includes_phdrs) | |
3271a814 NS |
5926 | /* There is some padding before the first section in the |
5927 | segment. So, we must account for that in the output | |
5928 | segment's vma. */ | |
5929 | map->p_vaddr_offset = matching_lma - map->p_paddr; | |
08a40648 | 5930 | |
252b5132 RH |
5931 | free (sections); |
5932 | continue; | |
5933 | } | |
252b5132 RH |
5934 | else |
5935 | { | |
0067a569 | 5936 | if (!first_matching_lma) |
72730e0c AM |
5937 | { |
5938 | /* At least one section fits inside the current segment. | |
5939 | Keep it, but modify its physical address to match the | |
5940 | LMA of the first section that fitted. */ | |
bc67d8a6 | 5941 | map->p_paddr = matching_lma; |
72730e0c AM |
5942 | } |
5943 | else | |
5944 | { | |
5945 | /* None of the sections fitted inside the current segment. | |
5946 | Change the current segment's physical address to match | |
5947 | the LMA of the first section. */ | |
bc67d8a6 | 5948 | map->p_paddr = suggested_lma; |
72730e0c AM |
5949 | } |
5950 | ||
bc67d8a6 NC |
5951 | /* Offset the segment physical address from the lma |
5952 | to allow for space taken up by elf headers. */ | |
5953 | if (map->includes_filehdr) | |
010c8431 AM |
5954 | { |
5955 | if (map->p_paddr >= iehdr->e_ehsize) | |
5956 | map->p_paddr -= iehdr->e_ehsize; | |
5957 | else | |
5958 | { | |
5959 | map->includes_filehdr = FALSE; | |
5960 | map->includes_phdrs = FALSE; | |
5961 | } | |
5962 | } | |
252b5132 | 5963 | |
bc67d8a6 NC |
5964 | if (map->includes_phdrs) |
5965 | { | |
010c8431 AM |
5966 | if (map->p_paddr >= iehdr->e_phnum * iehdr->e_phentsize) |
5967 | { | |
5968 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
5969 | ||
5970 | /* iehdr->e_phnum is just an estimate of the number | |
5971 | of program headers that we will need. Make a note | |
5972 | here of the number we used and the segment we chose | |
5973 | to hold these headers, so that we can adjust the | |
5974 | offset when we know the correct value. */ | |
5975 | phdr_adjust_num = iehdr->e_phnum; | |
5976 | phdr_adjust_seg = map; | |
5977 | } | |
5978 | else | |
5979 | map->includes_phdrs = FALSE; | |
bc67d8a6 | 5980 | } |
252b5132 RH |
5981 | } |
5982 | ||
5983 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 5984 | those that fit to the current segment and removing them from the |
252b5132 RH |
5985 | sections array; but making sure not to leave large gaps. Once all |
5986 | possible sections have been assigned to the current segment it is | |
5987 | added to the list of built segments and if sections still remain | |
5988 | to be assigned, a new segment is constructed before repeating | |
5989 | the loop. */ | |
5990 | isec = 0; | |
5991 | do | |
5992 | { | |
bc67d8a6 | 5993 | map->count = 0; |
252b5132 | 5994 | suggested_lma = 0; |
0067a569 | 5995 | first_suggested_lma = TRUE; |
252b5132 RH |
5996 | |
5997 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 5998 | for (j = 0; j < section_count; j++) |
252b5132 | 5999 | { |
bc67d8a6 | 6000 | section = sections[j]; |
252b5132 | 6001 | |
bc67d8a6 | 6002 | if (section == NULL) |
252b5132 RH |
6003 | continue; |
6004 | ||
bc67d8a6 | 6005 | output_section = section->output_section; |
252b5132 | 6006 | |
bc67d8a6 | 6007 | BFD_ASSERT (output_section != NULL); |
c044fabd | 6008 | |
bc67d8a6 NC |
6009 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
6010 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 6011 | { |
bc67d8a6 | 6012 | if (map->count == 0) |
252b5132 RH |
6013 | { |
6014 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
6015 | the beginning of the segment, then something is |
6016 | wrong. */ | |
0067a569 AM |
6017 | if (output_section->lma |
6018 | != (map->p_paddr | |
6019 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
6020 | + (map->includes_phdrs | |
6021 | ? iehdr->e_phnum * iehdr->e_phentsize | |
6022 | : 0))) | |
252b5132 RH |
6023 | abort (); |
6024 | } | |
6025 | else | |
6026 | { | |
0067a569 | 6027 | asection *prev_sec; |
252b5132 | 6028 | |
bc67d8a6 | 6029 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
6030 | |
6031 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
6032 | and the start of this section is more than |
6033 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 6034 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 6035 | maxpagesize) |
caf47ea6 | 6036 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 6037 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 6038 | > output_section->lma)) |
252b5132 | 6039 | { |
0067a569 AM |
6040 | if (first_suggested_lma) |
6041 | { | |
6042 | suggested_lma = output_section->lma; | |
6043 | first_suggested_lma = FALSE; | |
6044 | } | |
252b5132 RH |
6045 | |
6046 | continue; | |
6047 | } | |
6048 | } | |
6049 | ||
bc67d8a6 | 6050 | map->sections[map->count++] = output_section; |
252b5132 RH |
6051 | ++isec; |
6052 | sections[j] = NULL; | |
b34976b6 | 6053 | section->segment_mark = TRUE; |
252b5132 | 6054 | } |
0067a569 AM |
6055 | else if (first_suggested_lma) |
6056 | { | |
6057 | suggested_lma = output_section->lma; | |
6058 | first_suggested_lma = FALSE; | |
6059 | } | |
252b5132 RH |
6060 | } |
6061 | ||
bc67d8a6 | 6062 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
6063 | |
6064 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
6065 | *pointer_to_map = map; |
6066 | pointer_to_map = &map->next; | |
252b5132 | 6067 | |
bc67d8a6 | 6068 | if (isec < section_count) |
252b5132 RH |
6069 | { |
6070 | /* We still have not allocated all of the sections to | |
6071 | segments. Create a new segment here, initialise it | |
6072 | and carry on looping. */ | |
dc810e39 AM |
6073 | amt = sizeof (struct elf_segment_map); |
6074 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 6075 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6076 | if (map == NULL) |
5ed6aba4 NC |
6077 | { |
6078 | free (sections); | |
6079 | return FALSE; | |
6080 | } | |
252b5132 RH |
6081 | |
6082 | /* Initialise the fields of the segment map. Set the physical | |
6083 | physical address to the LMA of the first section that has | |
6084 | not yet been assigned. */ | |
0067a569 AM |
6085 | map->next = NULL; |
6086 | map->p_type = segment->p_type; | |
6087 | map->p_flags = segment->p_flags; | |
6088 | map->p_flags_valid = 1; | |
6089 | map->p_paddr = suggested_lma; | |
5c44b38e | 6090 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 6091 | map->includes_filehdr = 0; |
0067a569 | 6092 | map->includes_phdrs = 0; |
252b5132 RH |
6093 | } |
6094 | } | |
bc67d8a6 | 6095 | while (isec < section_count); |
252b5132 RH |
6096 | |
6097 | free (sections); | |
6098 | } | |
6099 | ||
12bd6957 | 6100 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
6101 | |
6102 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 6103 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
6104 | the offset if necessary. */ |
6105 | if (phdr_adjust_seg != NULL) | |
6106 | { | |
6107 | unsigned int count; | |
c044fabd | 6108 | |
bc67d8a6 | 6109 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 6110 | count++; |
252b5132 | 6111 | |
bc67d8a6 NC |
6112 | if (count > phdr_adjust_num) |
6113 | phdr_adjust_seg->p_paddr | |
6114 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
6115 | } | |
c044fabd | 6116 | |
bc67d8a6 | 6117 | #undef SEGMENT_END |
eecdbe52 | 6118 | #undef SECTION_SIZE |
bc67d8a6 NC |
6119 | #undef IS_CONTAINED_BY_VMA |
6120 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 6121 | #undef IS_NOTE |
252b5132 | 6122 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 6123 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 6124 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
6125 | #undef INCLUDE_SECTION_IN_SEGMENT |
6126 | #undef SEGMENT_AFTER_SEGMENT | |
6127 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 6128 | return TRUE; |
252b5132 RH |
6129 | } |
6130 | ||
84d1d650 L |
6131 | /* Copy ELF program header information. */ |
6132 | ||
6133 | static bfd_boolean | |
6134 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
6135 | { | |
6136 | Elf_Internal_Ehdr *iehdr; | |
6137 | struct elf_segment_map *map; | |
6138 | struct elf_segment_map *map_first; | |
6139 | struct elf_segment_map **pointer_to_map; | |
6140 | Elf_Internal_Phdr *segment; | |
6141 | unsigned int i; | |
6142 | unsigned int num_segments; | |
6143 | bfd_boolean phdr_included = FALSE; | |
88967714 | 6144 | bfd_boolean p_paddr_valid; |
84d1d650 L |
6145 | |
6146 | iehdr = elf_elfheader (ibfd); | |
6147 | ||
6148 | map_first = NULL; | |
6149 | pointer_to_map = &map_first; | |
6150 | ||
88967714 AM |
6151 | /* If all the segment p_paddr fields are zero, don't set |
6152 | map->p_paddr_valid. */ | |
6153 | p_paddr_valid = FALSE; | |
84d1d650 | 6154 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
6155 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6156 | i < num_segments; | |
6157 | i++, segment++) | |
6158 | if (segment->p_paddr != 0) | |
6159 | { | |
6160 | p_paddr_valid = TRUE; | |
6161 | break; | |
6162 | } | |
6163 | ||
84d1d650 L |
6164 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6165 | i < num_segments; | |
6166 | i++, segment++) | |
6167 | { | |
6168 | asection *section; | |
6169 | unsigned int section_count; | |
6170 | bfd_size_type amt; | |
6171 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 6172 | asection *first_section = NULL; |
a76e6f2f | 6173 | asection *lowest_section; |
84d1d650 | 6174 | |
84d1d650 L |
6175 | /* Compute how many sections are in this segment. */ |
6176 | for (section = ibfd->sections, section_count = 0; | |
6177 | section != NULL; | |
6178 | section = section->next) | |
6179 | { | |
6180 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6181 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 6182 | { |
a76e6f2f AM |
6183 | if (first_section == NULL) |
6184 | first_section = section; | |
3271a814 NS |
6185 | section_count++; |
6186 | } | |
84d1d650 L |
6187 | } |
6188 | ||
6189 | /* Allocate a segment map big enough to contain | |
6190 | all of the sections we have selected. */ | |
6191 | amt = sizeof (struct elf_segment_map); | |
6192 | if (section_count != 0) | |
6193 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6194 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
6195 | if (map == NULL) |
6196 | return FALSE; | |
6197 | ||
6198 | /* Initialize the fields of the output segment map with the | |
6199 | input segment. */ | |
6200 | map->next = NULL; | |
6201 | map->p_type = segment->p_type; | |
6202 | map->p_flags = segment->p_flags; | |
6203 | map->p_flags_valid = 1; | |
6204 | map->p_paddr = segment->p_paddr; | |
88967714 | 6205 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
6206 | map->p_align = segment->p_align; |
6207 | map->p_align_valid = 1; | |
3271a814 | 6208 | map->p_vaddr_offset = 0; |
84d1d650 | 6209 | |
04c3a755 NS |
6210 | if (map->p_type == PT_GNU_RELRO |
6211 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
6212 | { |
6213 | /* The PT_GNU_RELRO segment may contain the first a few | |
6214 | bytes in the .got.plt section even if the whole .got.plt | |
6215 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
6216 | change the size of the PT_GNU_RELRO segment. |
6217 | Similarly, PT_GNU_STACK size is significant on uclinux | |
6218 | systems. */ | |
9433b9b1 | 6219 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
6220 | map->p_size_valid = 1; |
6221 | } | |
6222 | ||
84d1d650 L |
6223 | /* Determine if this segment contains the ELF file header |
6224 | and if it contains the program headers themselves. */ | |
6225 | map->includes_filehdr = (segment->p_offset == 0 | |
6226 | && segment->p_filesz >= iehdr->e_ehsize); | |
6227 | ||
6228 | map->includes_phdrs = 0; | |
6229 | if (! phdr_included || segment->p_type != PT_LOAD) | |
6230 | { | |
6231 | map->includes_phdrs = | |
6232 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6233 | && (segment->p_offset + segment->p_filesz | |
6234 | >= ((bfd_vma) iehdr->e_phoff | |
6235 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
6236 | ||
6237 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
6238 | phdr_included = TRUE; | |
6239 | } | |
6240 | ||
a76e6f2f | 6241 | lowest_section = first_section; |
84d1d650 L |
6242 | if (section_count != 0) |
6243 | { | |
6244 | unsigned int isec = 0; | |
6245 | ||
53020534 | 6246 | for (section = first_section; |
84d1d650 L |
6247 | section != NULL; |
6248 | section = section->next) | |
6249 | { | |
6250 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6251 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
6252 | { |
6253 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
6254 | if ((section->flags & SEC_ALLOC) != 0) |
6255 | { | |
6256 | bfd_vma seg_off; | |
6257 | ||
fb8a5684 AM |
6258 | if (section->lma < lowest_section->lma) |
6259 | lowest_section = section; | |
6260 | ||
a76e6f2f AM |
6261 | /* Section lmas are set up from PT_LOAD header |
6262 | p_paddr in _bfd_elf_make_section_from_shdr. | |
6263 | If this header has a p_paddr that disagrees | |
6264 | with the section lma, flag the p_paddr as | |
6265 | invalid. */ | |
6266 | if ((section->flags & SEC_LOAD) != 0) | |
6267 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
6268 | else | |
6269 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
6270 | if (section->lma - segment->p_paddr != seg_off) | |
6271 | map->p_paddr_valid = FALSE; | |
6272 | } | |
53020534 L |
6273 | if (isec == section_count) |
6274 | break; | |
6275 | } | |
84d1d650 L |
6276 | } |
6277 | } | |
6278 | ||
a76e6f2f AM |
6279 | if (map->includes_filehdr && lowest_section != NULL) |
6280 | /* We need to keep the space used by the headers fixed. */ | |
6281 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 6282 | |
a76e6f2f AM |
6283 | if (!map->includes_phdrs |
6284 | && !map->includes_filehdr | |
6285 | && map->p_paddr_valid) | |
6286 | /* There is some other padding before the first section. */ | |
6287 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
6288 | - segment->p_paddr); | |
6289 | ||
84d1d650 L |
6290 | map->count = section_count; |
6291 | *pointer_to_map = map; | |
6292 | pointer_to_map = &map->next; | |
6293 | } | |
6294 | ||
12bd6957 | 6295 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
6296 | return TRUE; |
6297 | } | |
6298 | ||
6299 | /* Copy private BFD data. This copies or rewrites ELF program header | |
6300 | information. */ | |
6301 | ||
6302 | static bfd_boolean | |
6303 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
6304 | { | |
84d1d650 L |
6305 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
6306 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6307 | return TRUE; | |
6308 | ||
6309 | if (elf_tdata (ibfd)->phdr == NULL) | |
6310 | return TRUE; | |
6311 | ||
6312 | if (ibfd->xvec == obfd->xvec) | |
6313 | { | |
cb3ff1e5 NC |
6314 | /* Check to see if any sections in the input BFD |
6315 | covered by ELF program header have changed. */ | |
d55ce4e2 | 6316 | Elf_Internal_Phdr *segment; |
84d1d650 L |
6317 | asection *section, *osec; |
6318 | unsigned int i, num_segments; | |
6319 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
6320 | const struct elf_backend_data *bed; |
6321 | ||
6322 | bed = get_elf_backend_data (ibfd); | |
6323 | ||
6324 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
6325 | if (bed->want_p_paddr_set_to_zero) | |
6326 | goto rewrite; | |
84d1d650 L |
6327 | |
6328 | /* Initialize the segment mark field. */ | |
6329 | for (section = obfd->sections; section != NULL; | |
6330 | section = section->next) | |
6331 | section->segment_mark = FALSE; | |
6332 | ||
6333 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
6334 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6335 | i < num_segments; | |
6336 | i++, segment++) | |
6337 | { | |
5f6999aa NC |
6338 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
6339 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
6340 | which severly confuses things, so always regenerate the segment | |
6341 | map in this case. */ | |
6342 | if (segment->p_paddr == 0 | |
6343 | && segment->p_memsz == 0 | |
6344 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 6345 | goto rewrite; |
5f6999aa | 6346 | |
84d1d650 L |
6347 | for (section = ibfd->sections; |
6348 | section != NULL; section = section->next) | |
6349 | { | |
6350 | /* We mark the output section so that we know it comes | |
6351 | from the input BFD. */ | |
6352 | osec = section->output_section; | |
6353 | if (osec) | |
6354 | osec->segment_mark = TRUE; | |
6355 | ||
6356 | /* Check if this section is covered by the segment. */ | |
6357 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6358 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
6359 | { |
6360 | /* FIXME: Check if its output section is changed or | |
6361 | removed. What else do we need to check? */ | |
6362 | if (osec == NULL | |
6363 | || section->flags != osec->flags | |
6364 | || section->lma != osec->lma | |
6365 | || section->vma != osec->vma | |
6366 | || section->size != osec->size | |
6367 | || section->rawsize != osec->rawsize | |
6368 | || section->alignment_power != osec->alignment_power) | |
6369 | goto rewrite; | |
6370 | } | |
6371 | } | |
6372 | } | |
6373 | ||
cb3ff1e5 | 6374 | /* Check to see if any output section do not come from the |
84d1d650 L |
6375 | input BFD. */ |
6376 | for (section = obfd->sections; section != NULL; | |
6377 | section = section->next) | |
6378 | { | |
6379 | if (section->segment_mark == FALSE) | |
6380 | goto rewrite; | |
6381 | else | |
6382 | section->segment_mark = FALSE; | |
6383 | } | |
6384 | ||
6385 | return copy_elf_program_header (ibfd, obfd); | |
6386 | } | |
6387 | ||
6388 | rewrite: | |
f1d85785 L |
6389 | if (ibfd->xvec == obfd->xvec) |
6390 | { | |
6391 | /* When rewriting program header, set the output maxpagesize to | |
6392 | the maximum alignment of input PT_LOAD segments. */ | |
6393 | Elf_Internal_Phdr *segment; | |
6394 | unsigned int i; | |
6395 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
6396 | bfd_vma maxpagesize = 0; | |
6397 | ||
6398 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6399 | i < num_segments; | |
6400 | i++, segment++) | |
6401 | if (segment->p_type == PT_LOAD | |
6402 | && maxpagesize < segment->p_align) | |
6403 | maxpagesize = segment->p_align; | |
6404 | ||
6405 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
6406 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
6407 | } | |
6408 | ||
84d1d650 L |
6409 | return rewrite_elf_program_header (ibfd, obfd); |
6410 | } | |
6411 | ||
ccd2ec6a L |
6412 | /* Initialize private output section information from input section. */ |
6413 | ||
6414 | bfd_boolean | |
6415 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
6416 | asection *isec, | |
6417 | bfd *obfd, | |
6418 | asection *osec, | |
6419 | struct bfd_link_info *link_info) | |
6420 | ||
6421 | { | |
6422 | Elf_Internal_Shdr *ihdr, *ohdr; | |
dfa7b0b8 | 6423 | bfd_boolean final_link = link_info != NULL && !link_info->relocatable; |
ccd2ec6a L |
6424 | |
6425 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6426 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
6427 | return TRUE; | |
6428 | ||
ba85c43e NC |
6429 | BFD_ASSERT (elf_section_data (osec) != NULL); |
6430 | ||
dfa7b0b8 AM |
6431 | /* For objcopy and relocatable link, don't copy the output ELF |
6432 | section type from input if the output BFD section flags have been | |
6433 | set to something different. For a final link allow some flags | |
6434 | that the linker clears to differ. */ | |
42bb2e33 | 6435 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
6436 | && (osec->flags == isec->flags |
6437 | || (final_link | |
6438 | && ((osec->flags ^ isec->flags) | |
0814be7d | 6439 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 6440 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
6441 | |
6442 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
6443 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
6444 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a L |
6445 | |
6446 | /* Set things up for objcopy and relocatable link. The output | |
6447 | SHT_GROUP section will have its elf_next_in_group pointing back | |
6448 | to the input group members. Ignore linker created group section. | |
6449 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
dfa7b0b8 | 6450 | if (!final_link) |
ccd2ec6a L |
6451 | { |
6452 | if (elf_sec_group (isec) == NULL | |
6453 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0) | |
6454 | { | |
6455 | if (elf_section_flags (isec) & SHF_GROUP) | |
6456 | elf_section_flags (osec) |= SHF_GROUP; | |
6457 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
9659de1c | 6458 | elf_section_data (osec)->group = elf_section_data (isec)->group; |
ccd2ec6a L |
6459 | } |
6460 | } | |
6461 | ||
6462 | ihdr = &elf_section_data (isec)->this_hdr; | |
6463 | ||
6464 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
6465 | don't use the output section of the linked-to section since it | |
6466 | may be NULL at this point. */ | |
6467 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
6468 | { | |
6469 | ohdr = &elf_section_data (osec)->this_hdr; | |
6470 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
6471 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
6472 | } | |
6473 | ||
6474 | osec->use_rela_p = isec->use_rela_p; | |
6475 | ||
6476 | return TRUE; | |
6477 | } | |
6478 | ||
252b5132 RH |
6479 | /* Copy private section information. This copies over the entsize |
6480 | field, and sometimes the info field. */ | |
6481 | ||
b34976b6 | 6482 | bfd_boolean |
217aa764 AM |
6483 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
6484 | asection *isec, | |
6485 | bfd *obfd, | |
6486 | asection *osec) | |
252b5132 RH |
6487 | { |
6488 | Elf_Internal_Shdr *ihdr, *ohdr; | |
6489 | ||
6490 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6491 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 6492 | return TRUE; |
252b5132 | 6493 | |
252b5132 RH |
6494 | ihdr = &elf_section_data (isec)->this_hdr; |
6495 | ohdr = &elf_section_data (osec)->this_hdr; | |
6496 | ||
6497 | ohdr->sh_entsize = ihdr->sh_entsize; | |
6498 | ||
6499 | if (ihdr->sh_type == SHT_SYMTAB | |
6500 | || ihdr->sh_type == SHT_DYNSYM | |
6501 | || ihdr->sh_type == SHT_GNU_verneed | |
6502 | || ihdr->sh_type == SHT_GNU_verdef) | |
6503 | ohdr->sh_info = ihdr->sh_info; | |
6504 | ||
ccd2ec6a L |
6505 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
6506 | NULL); | |
252b5132 RH |
6507 | } |
6508 | ||
d0bf826b AM |
6509 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
6510 | necessary if we are removing either the SHT_GROUP section or any of | |
6511 | the group member sections. DISCARDED is the value that a section's | |
6512 | output_section has if the section will be discarded, NULL when this | |
6513 | function is called from objcopy, bfd_abs_section_ptr when called | |
6514 | from the linker. */ | |
80fccad2 BW |
6515 | |
6516 | bfd_boolean | |
d0bf826b | 6517 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 6518 | { |
30288845 AM |
6519 | asection *isec; |
6520 | ||
30288845 | 6521 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 6522 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
6523 | { |
6524 | asection *first = elf_next_in_group (isec); | |
6525 | asection *s = first; | |
d0bf826b AM |
6526 | bfd_size_type removed = 0; |
6527 | ||
30288845 AM |
6528 | while (s != NULL) |
6529 | { | |
415f38a6 AM |
6530 | /* If this member section is being output but the |
6531 | SHT_GROUP section is not, then clear the group info | |
6532 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
6533 | if (s->output_section != discarded |
6534 | && isec->output_section == discarded) | |
30288845 AM |
6535 | { |
6536 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
6537 | elf_group_name (s->output_section) = NULL; | |
6538 | } | |
415f38a6 AM |
6539 | /* Conversely, if the member section is not being output |
6540 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
6541 | else if (s->output_section == discarded |
6542 | && isec->output_section != discarded) | |
6543 | removed += 4; | |
30288845 AM |
6544 | s = elf_next_in_group (s); |
6545 | if (s == first) | |
6546 | break; | |
6547 | } | |
d0bf826b AM |
6548 | if (removed != 0) |
6549 | { | |
6550 | if (discarded != NULL) | |
6551 | { | |
6552 | /* If we've been called for ld -r, then we need to | |
6553 | adjust the input section size. This function may | |
6554 | be called multiple times, so save the original | |
6555 | size. */ | |
6556 | if (isec->rawsize == 0) | |
6557 | isec->rawsize = isec->size; | |
6558 | isec->size = isec->rawsize - removed; | |
6559 | } | |
6560 | else | |
6561 | { | |
6562 | /* Adjust the output section size when called from | |
6563 | objcopy. */ | |
6564 | isec->output_section->size -= removed; | |
6565 | } | |
6566 | } | |
30288845 AM |
6567 | } |
6568 | ||
80fccad2 BW |
6569 | return TRUE; |
6570 | } | |
6571 | ||
d0bf826b AM |
6572 | /* Copy private header information. */ |
6573 | ||
6574 | bfd_boolean | |
6575 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
6576 | { | |
6577 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6578 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6579 | return TRUE; | |
6580 | ||
6581 | /* Copy over private BFD data if it has not already been copied. | |
6582 | This must be done here, rather than in the copy_private_bfd_data | |
6583 | entry point, because the latter is called after the section | |
6584 | contents have been set, which means that the program headers have | |
6585 | already been worked out. */ | |
12bd6957 | 6586 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
6587 | { |
6588 | if (! copy_private_bfd_data (ibfd, obfd)) | |
6589 | return FALSE; | |
6590 | } | |
6591 | ||
6592 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
6593 | } | |
6594 | ||
252b5132 RH |
6595 | /* Copy private symbol information. If this symbol is in a section |
6596 | which we did not map into a BFD section, try to map the section | |
6597 | index correctly. We use special macro definitions for the mapped | |
6598 | section indices; these definitions are interpreted by the | |
6599 | swap_out_syms function. */ | |
6600 | ||
9ad5cbcf AM |
6601 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
6602 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
6603 | #define MAP_STRTAB (SHN_HIOS + 3) | |
6604 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
6605 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 6606 | |
b34976b6 | 6607 | bfd_boolean |
217aa764 AM |
6608 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
6609 | asymbol *isymarg, | |
6610 | bfd *obfd, | |
6611 | asymbol *osymarg) | |
252b5132 RH |
6612 | { |
6613 | elf_symbol_type *isym, *osym; | |
6614 | ||
6615 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6616 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 6617 | return TRUE; |
252b5132 RH |
6618 | |
6619 | isym = elf_symbol_from (ibfd, isymarg); | |
6620 | osym = elf_symbol_from (obfd, osymarg); | |
6621 | ||
6622 | if (isym != NULL | |
8424d8f5 | 6623 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
6624 | && osym != NULL |
6625 | && bfd_is_abs_section (isym->symbol.section)) | |
6626 | { | |
6627 | unsigned int shndx; | |
6628 | ||
6629 | shndx = isym->internal_elf_sym.st_shndx; | |
6630 | if (shndx == elf_onesymtab (ibfd)) | |
6631 | shndx = MAP_ONESYMTAB; | |
6632 | else if (shndx == elf_dynsymtab (ibfd)) | |
6633 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 6634 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 6635 | shndx = MAP_STRTAB; |
12bd6957 | 6636 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 6637 | shndx = MAP_SHSTRTAB; |
12bd6957 | 6638 | else if (shndx == elf_symtab_shndx (ibfd)) |
9ad5cbcf | 6639 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
6640 | osym->internal_elf_sym.st_shndx = shndx; |
6641 | } | |
6642 | ||
b34976b6 | 6643 | return TRUE; |
252b5132 RH |
6644 | } |
6645 | ||
6646 | /* Swap out the symbols. */ | |
6647 | ||
b34976b6 | 6648 | static bfd_boolean |
217aa764 AM |
6649 | swap_out_syms (bfd *abfd, |
6650 | struct bfd_strtab_hash **sttp, | |
6651 | int relocatable_p) | |
252b5132 | 6652 | { |
9c5bfbb7 | 6653 | const struct elf_backend_data *bed; |
079e9a2f AM |
6654 | int symcount; |
6655 | asymbol **syms; | |
6656 | struct bfd_strtab_hash *stt; | |
6657 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 6658 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 6659 | Elf_Internal_Shdr *symstrtab_hdr; |
f075ee0c AM |
6660 | bfd_byte *outbound_syms; |
6661 | bfd_byte *outbound_shndx; | |
079e9a2f | 6662 | int idx; |
12bd6957 | 6663 | unsigned int num_locals; |
079e9a2f | 6664 | bfd_size_type amt; |
174fd7f9 | 6665 | bfd_boolean name_local_sections; |
252b5132 | 6666 | |
12bd6957 | 6667 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 6668 | return FALSE; |
252b5132 | 6669 | |
c044fabd | 6670 | /* Dump out the symtabs. */ |
079e9a2f AM |
6671 | stt = _bfd_elf_stringtab_init (); |
6672 | if (stt == NULL) | |
b34976b6 | 6673 | return FALSE; |
252b5132 | 6674 | |
079e9a2f AM |
6675 | bed = get_elf_backend_data (abfd); |
6676 | symcount = bfd_get_symcount (abfd); | |
6677 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6678 | symtab_hdr->sh_type = SHT_SYMTAB; | |
6679 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
6680 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 6681 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 6682 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
6683 | |
6684 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
6685 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
6686 | ||
a50b1753 NC |
6687 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
6688 | bed->s->sizeof_sym); | |
079e9a2f | 6689 | if (outbound_syms == NULL) |
5ed6aba4 NC |
6690 | { |
6691 | _bfd_stringtab_free (stt); | |
6692 | return FALSE; | |
6693 | } | |
217aa764 | 6694 | symtab_hdr->contents = outbound_syms; |
252b5132 | 6695 | |
9ad5cbcf AM |
6696 | outbound_shndx = NULL; |
6697 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
6698 | if (symtab_shndx_hdr->sh_name != 0) | |
6699 | { | |
6700 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
a50b1753 NC |
6701 | outbound_shndx = (bfd_byte *) |
6702 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
9ad5cbcf | 6703 | if (outbound_shndx == NULL) |
5ed6aba4 NC |
6704 | { |
6705 | _bfd_stringtab_free (stt); | |
6706 | return FALSE; | |
6707 | } | |
6708 | ||
9ad5cbcf AM |
6709 | symtab_shndx_hdr->contents = outbound_shndx; |
6710 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
6711 | symtab_shndx_hdr->sh_size = amt; | |
6712 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
6713 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
6714 | } | |
6715 | ||
589e6347 | 6716 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
6717 | { |
6718 | /* Fill in zeroth symbol and swap it out. */ | |
6719 | Elf_Internal_Sym sym; | |
6720 | sym.st_name = 0; | |
6721 | sym.st_value = 0; | |
6722 | sym.st_size = 0; | |
6723 | sym.st_info = 0; | |
6724 | sym.st_other = 0; | |
6725 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 6726 | sym.st_target_internal = 0; |
9ad5cbcf | 6727 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6728 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6729 | if (outbound_shndx != NULL) |
6730 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6731 | } |
252b5132 | 6732 | |
174fd7f9 RS |
6733 | name_local_sections |
6734 | = (bed->elf_backend_name_local_section_symbols | |
6735 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
6736 | ||
079e9a2f AM |
6737 | syms = bfd_get_outsymbols (abfd); |
6738 | for (idx = 0; idx < symcount; idx++) | |
252b5132 | 6739 | { |
252b5132 | 6740 | Elf_Internal_Sym sym; |
079e9a2f AM |
6741 | bfd_vma value = syms[idx]->value; |
6742 | elf_symbol_type *type_ptr; | |
6743 | flagword flags = syms[idx]->flags; | |
6744 | int type; | |
252b5132 | 6745 | |
174fd7f9 RS |
6746 | if (!name_local_sections |
6747 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
6748 | { |
6749 | /* Local section symbols have no name. */ | |
6750 | sym.st_name = 0; | |
6751 | } | |
6752 | else | |
6753 | { | |
6754 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |
6755 | syms[idx]->name, | |
b34976b6 | 6756 | TRUE, FALSE); |
079e9a2f | 6757 | if (sym.st_name == (unsigned long) -1) |
5ed6aba4 NC |
6758 | { |
6759 | _bfd_stringtab_free (stt); | |
6760 | return FALSE; | |
6761 | } | |
079e9a2f | 6762 | } |
252b5132 | 6763 | |
079e9a2f | 6764 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 6765 | |
079e9a2f AM |
6766 | if ((flags & BSF_SECTION_SYM) == 0 |
6767 | && bfd_is_com_section (syms[idx]->section)) | |
6768 | { | |
6769 | /* ELF common symbols put the alignment into the `value' field, | |
6770 | and the size into the `size' field. This is backwards from | |
6771 | how BFD handles it, so reverse it here. */ | |
6772 | sym.st_size = value; | |
6773 | if (type_ptr == NULL | |
6774 | || type_ptr->internal_elf_sym.st_value == 0) | |
6775 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
6776 | else | |
6777 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
6778 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
6779 | (abfd, syms[idx]->section); | |
6780 | } | |
6781 | else | |
6782 | { | |
6783 | asection *sec = syms[idx]->section; | |
cb33740c | 6784 | unsigned int shndx; |
252b5132 | 6785 | |
079e9a2f AM |
6786 | if (sec->output_section) |
6787 | { | |
6788 | value += sec->output_offset; | |
6789 | sec = sec->output_section; | |
6790 | } | |
589e6347 | 6791 | |
079e9a2f AM |
6792 | /* Don't add in the section vma for relocatable output. */ |
6793 | if (! relocatable_p) | |
6794 | value += sec->vma; | |
6795 | sym.st_value = value; | |
6796 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
6797 | ||
6798 | if (bfd_is_abs_section (sec) | |
6799 | && type_ptr != NULL | |
6800 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
6801 | { | |
6802 | /* This symbol is in a real ELF section which we did | |
6803 | not create as a BFD section. Undo the mapping done | |
6804 | by copy_private_symbol_data. */ | |
6805 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
6806 | switch (shndx) | |
6807 | { | |
6808 | case MAP_ONESYMTAB: | |
6809 | shndx = elf_onesymtab (abfd); | |
6810 | break; | |
6811 | case MAP_DYNSYMTAB: | |
6812 | shndx = elf_dynsymtab (abfd); | |
6813 | break; | |
6814 | case MAP_STRTAB: | |
12bd6957 | 6815 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
6816 | break; |
6817 | case MAP_SHSTRTAB: | |
12bd6957 | 6818 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 6819 | break; |
9ad5cbcf | 6820 | case MAP_SYM_SHNDX: |
12bd6957 | 6821 | shndx = elf_symtab_shndx (abfd); |
9ad5cbcf | 6822 | break; |
079e9a2f | 6823 | default: |
15bc576a | 6824 | shndx = SHN_ABS; |
079e9a2f AM |
6825 | break; |
6826 | } | |
6827 | } | |
6828 | else | |
6829 | { | |
6830 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 6831 | |
cb33740c | 6832 | if (shndx == SHN_BAD) |
079e9a2f AM |
6833 | { |
6834 | asection *sec2; | |
6835 | ||
6836 | /* Writing this would be a hell of a lot easier if | |
6837 | we had some decent documentation on bfd, and | |
6838 | knew what to expect of the library, and what to | |
6839 | demand of applications. For example, it | |
6840 | appears that `objcopy' might not set the | |
6841 | section of a symbol to be a section that is | |
6842 | actually in the output file. */ | |
6843 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
589e6347 NC |
6844 | if (sec2 == NULL) |
6845 | { | |
6846 | _bfd_error_handler (_("\ | |
6847 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
6848 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
6849 | sec->name); | |
811072d8 | 6850 | bfd_set_error (bfd_error_invalid_operation); |
5ed6aba4 | 6851 | _bfd_stringtab_free (stt); |
589e6347 NC |
6852 | return FALSE; |
6853 | } | |
811072d8 | 6854 | |
079e9a2f | 6855 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); |
cb33740c | 6856 | BFD_ASSERT (shndx != SHN_BAD); |
079e9a2f AM |
6857 | } |
6858 | } | |
252b5132 | 6859 | |
079e9a2f AM |
6860 | sym.st_shndx = shndx; |
6861 | } | |
252b5132 | 6862 | |
13ae64f3 JJ |
6863 | if ((flags & BSF_THREAD_LOCAL) != 0) |
6864 | type = STT_TLS; | |
d8045f23 NC |
6865 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
6866 | type = STT_GNU_IFUNC; | |
13ae64f3 | 6867 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
6868 | type = STT_FUNC; |
6869 | else if ((flags & BSF_OBJECT) != 0) | |
6870 | type = STT_OBJECT; | |
d9352518 DB |
6871 | else if ((flags & BSF_RELC) != 0) |
6872 | type = STT_RELC; | |
6873 | else if ((flags & BSF_SRELC) != 0) | |
6874 | type = STT_SRELC; | |
079e9a2f AM |
6875 | else |
6876 | type = STT_NOTYPE; | |
252b5132 | 6877 | |
13ae64f3 JJ |
6878 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
6879 | type = STT_TLS; | |
6880 | ||
589e6347 | 6881 | /* Processor-specific types. */ |
079e9a2f AM |
6882 | if (type_ptr != NULL |
6883 | && bed->elf_backend_get_symbol_type) | |
6884 | type = ((*bed->elf_backend_get_symbol_type) | |
6885 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 6886 | |
079e9a2f AM |
6887 | if (flags & BSF_SECTION_SYM) |
6888 | { | |
6889 | if (flags & BSF_GLOBAL) | |
6890 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
6891 | else | |
6892 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
6893 | } | |
6894 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 6895 | { |
504b7d20 | 6896 | #ifdef USE_STT_COMMON |
0a40daed MK |
6897 | if (type == STT_OBJECT) |
6898 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_COMMON); | |
6899 | else | |
504b7d20 | 6900 | #endif |
c91e322a | 6901 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); |
0a40daed | 6902 | } |
079e9a2f AM |
6903 | else if (bfd_is_und_section (syms[idx]->section)) |
6904 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
6905 | ? STB_WEAK | |
6906 | : STB_GLOBAL), | |
6907 | type); | |
6908 | else if (flags & BSF_FILE) | |
6909 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
6910 | else | |
6911 | { | |
6912 | int bind = STB_LOCAL; | |
252b5132 | 6913 | |
079e9a2f AM |
6914 | if (flags & BSF_LOCAL) |
6915 | bind = STB_LOCAL; | |
3e7a7d11 NC |
6916 | else if (flags & BSF_GNU_UNIQUE) |
6917 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
6918 | else if (flags & BSF_WEAK) |
6919 | bind = STB_WEAK; | |
6920 | else if (flags & BSF_GLOBAL) | |
6921 | bind = STB_GLOBAL; | |
252b5132 | 6922 | |
079e9a2f AM |
6923 | sym.st_info = ELF_ST_INFO (bind, type); |
6924 | } | |
252b5132 | 6925 | |
079e9a2f | 6926 | if (type_ptr != NULL) |
35fc36a8 RS |
6927 | { |
6928 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
6929 | sym.st_target_internal | |
6930 | = type_ptr->internal_elf_sym.st_target_internal; | |
6931 | } | |
079e9a2f | 6932 | else |
35fc36a8 RS |
6933 | { |
6934 | sym.st_other = 0; | |
6935 | sym.st_target_internal = 0; | |
6936 | } | |
252b5132 | 6937 | |
9ad5cbcf | 6938 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6939 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6940 | if (outbound_shndx != NULL) |
6941 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6942 | } |
252b5132 | 6943 | |
079e9a2f AM |
6944 | *sttp = stt; |
6945 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |
6946 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
252b5132 | 6947 | |
079e9a2f AM |
6948 | symstrtab_hdr->sh_flags = 0; |
6949 | symstrtab_hdr->sh_addr = 0; | |
6950 | symstrtab_hdr->sh_entsize = 0; | |
6951 | symstrtab_hdr->sh_link = 0; | |
6952 | symstrtab_hdr->sh_info = 0; | |
6953 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 6954 | |
b34976b6 | 6955 | return TRUE; |
252b5132 RH |
6956 | } |
6957 | ||
6958 | /* Return the number of bytes required to hold the symtab vector. | |
6959 | ||
6960 | Note that we base it on the count plus 1, since we will null terminate | |
6961 | the vector allocated based on this size. However, the ELF symbol table | |
6962 | always has a dummy entry as symbol #0, so it ends up even. */ | |
6963 | ||
6964 | long | |
217aa764 | 6965 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
6966 | { |
6967 | long symcount; | |
6968 | long symtab_size; | |
6969 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
6970 | ||
6971 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
6972 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
6973 | if (symcount > 0) | |
6974 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
6975 | |
6976 | return symtab_size; | |
6977 | } | |
6978 | ||
6979 | long | |
217aa764 | 6980 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
6981 | { |
6982 | long symcount; | |
6983 | long symtab_size; | |
6984 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
6985 | ||
6986 | if (elf_dynsymtab (abfd) == 0) | |
6987 | { | |
6988 | bfd_set_error (bfd_error_invalid_operation); | |
6989 | return -1; | |
6990 | } | |
6991 | ||
6992 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
6993 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
6994 | if (symcount > 0) | |
6995 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
6996 | |
6997 | return symtab_size; | |
6998 | } | |
6999 | ||
7000 | long | |
217aa764 AM |
7001 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
7002 | sec_ptr asect) | |
252b5132 RH |
7003 | { |
7004 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
7005 | } | |
7006 | ||
7007 | /* Canonicalize the relocs. */ | |
7008 | ||
7009 | long | |
217aa764 AM |
7010 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
7011 | sec_ptr section, | |
7012 | arelent **relptr, | |
7013 | asymbol **symbols) | |
252b5132 RH |
7014 | { |
7015 | arelent *tblptr; | |
7016 | unsigned int i; | |
9c5bfbb7 | 7017 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 7018 | |
b34976b6 | 7019 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
7020 | return -1; |
7021 | ||
7022 | tblptr = section->relocation; | |
7023 | for (i = 0; i < section->reloc_count; i++) | |
7024 | *relptr++ = tblptr++; | |
7025 | ||
7026 | *relptr = NULL; | |
7027 | ||
7028 | return section->reloc_count; | |
7029 | } | |
7030 | ||
7031 | long | |
6cee3f79 | 7032 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 7033 | { |
9c5bfbb7 | 7034 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7035 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
7036 | |
7037 | if (symcount >= 0) | |
7038 | bfd_get_symcount (abfd) = symcount; | |
7039 | return symcount; | |
7040 | } | |
7041 | ||
7042 | long | |
217aa764 AM |
7043 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
7044 | asymbol **allocation) | |
252b5132 | 7045 | { |
9c5bfbb7 | 7046 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7047 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
7048 | |
7049 | if (symcount >= 0) | |
7050 | bfd_get_dynamic_symcount (abfd) = symcount; | |
7051 | return symcount; | |
252b5132 RH |
7052 | } |
7053 | ||
8615f3f2 AM |
7054 | /* Return the size required for the dynamic reloc entries. Any loadable |
7055 | section that was actually installed in the BFD, and has type SHT_REL | |
7056 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
7057 | dynamic reloc section. */ | |
252b5132 RH |
7058 | |
7059 | long | |
217aa764 | 7060 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
7061 | { |
7062 | long ret; | |
7063 | asection *s; | |
7064 | ||
7065 | if (elf_dynsymtab (abfd) == 0) | |
7066 | { | |
7067 | bfd_set_error (bfd_error_invalid_operation); | |
7068 | return -1; | |
7069 | } | |
7070 | ||
7071 | ret = sizeof (arelent *); | |
7072 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 7073 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7074 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7075 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 7076 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
7077 | * sizeof (arelent *)); |
7078 | ||
7079 | return ret; | |
7080 | } | |
7081 | ||
8615f3f2 AM |
7082 | /* Canonicalize the dynamic relocation entries. Note that we return the |
7083 | dynamic relocations as a single block, although they are actually | |
7084 | associated with particular sections; the interface, which was | |
7085 | designed for SunOS style shared libraries, expects that there is only | |
7086 | one set of dynamic relocs. Any loadable section that was actually | |
7087 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
7088 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
7089 | |
7090 | long | |
217aa764 AM |
7091 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
7092 | arelent **storage, | |
7093 | asymbol **syms) | |
252b5132 | 7094 | { |
217aa764 | 7095 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
7096 | asection *s; |
7097 | long ret; | |
7098 | ||
7099 | if (elf_dynsymtab (abfd) == 0) | |
7100 | { | |
7101 | bfd_set_error (bfd_error_invalid_operation); | |
7102 | return -1; | |
7103 | } | |
7104 | ||
7105 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
7106 | ret = 0; | |
7107 | for (s = abfd->sections; s != NULL; s = s->next) | |
7108 | { | |
266b05cf | 7109 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7110 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7111 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
7112 | { | |
7113 | arelent *p; | |
7114 | long count, i; | |
7115 | ||
b34976b6 | 7116 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 7117 | return -1; |
eea6121a | 7118 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
7119 | p = s->relocation; |
7120 | for (i = 0; i < count; i++) | |
7121 | *storage++ = p++; | |
7122 | ret += count; | |
7123 | } | |
7124 | } | |
7125 | ||
7126 | *storage = NULL; | |
7127 | ||
7128 | return ret; | |
7129 | } | |
7130 | \f | |
7131 | /* Read in the version information. */ | |
7132 | ||
b34976b6 | 7133 | bfd_boolean |
fc0e6df6 | 7134 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
7135 | { |
7136 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
7137 | unsigned int freeidx = 0; |
7138 | ||
7139 | if (elf_dynverref (abfd) != 0) | |
7140 | { | |
7141 | Elf_Internal_Shdr *hdr; | |
7142 | Elf_External_Verneed *everneed; | |
7143 | Elf_Internal_Verneed *iverneed; | |
7144 | unsigned int i; | |
d0fb9a8d | 7145 | bfd_byte *contents_end; |
fc0e6df6 PB |
7146 | |
7147 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
7148 | ||
a50b1753 NC |
7149 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
7150 | bfd_zalloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); | |
fc0e6df6 PB |
7151 | if (elf_tdata (abfd)->verref == NULL) |
7152 | goto error_return; | |
7153 | ||
7154 | elf_tdata (abfd)->cverrefs = hdr->sh_info; | |
7155 | ||
a50b1753 | 7156 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
fc0e6df6 | 7157 | if (contents == NULL) |
d0fb9a8d JJ |
7158 | { |
7159 | error_return_verref: | |
7160 | elf_tdata (abfd)->verref = NULL; | |
7161 | elf_tdata (abfd)->cverrefs = 0; | |
7162 | goto error_return; | |
7163 | } | |
fc0e6df6 PB |
7164 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
7165 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 7166 | goto error_return_verref; |
fc0e6df6 | 7167 | |
d0fb9a8d JJ |
7168 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verneed)) |
7169 | goto error_return_verref; | |
7170 | ||
7171 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
7172 | == sizeof (Elf_External_Vernaux)); | |
7173 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
7174 | everneed = (Elf_External_Verneed *) contents; |
7175 | iverneed = elf_tdata (abfd)->verref; | |
7176 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
7177 | { | |
7178 | Elf_External_Vernaux *evernaux; | |
7179 | Elf_Internal_Vernaux *ivernaux; | |
7180 | unsigned int j; | |
7181 | ||
7182 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
7183 | ||
7184 | iverneed->vn_bfd = abfd; | |
7185 | ||
7186 | iverneed->vn_filename = | |
7187 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7188 | iverneed->vn_file); | |
7189 | if (iverneed->vn_filename == NULL) | |
d0fb9a8d | 7190 | goto error_return_verref; |
fc0e6df6 | 7191 | |
d0fb9a8d JJ |
7192 | if (iverneed->vn_cnt == 0) |
7193 | iverneed->vn_auxptr = NULL; | |
7194 | else | |
7195 | { | |
a50b1753 NC |
7196 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
7197 | bfd_alloc2 (abfd, iverneed->vn_cnt, | |
7198 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
7199 | if (iverneed->vn_auxptr == NULL) |
7200 | goto error_return_verref; | |
7201 | } | |
7202 | ||
7203 | if (iverneed->vn_aux | |
7204 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7205 | goto error_return_verref; | |
fc0e6df6 PB |
7206 | |
7207 | evernaux = ((Elf_External_Vernaux *) | |
7208 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
7209 | ivernaux = iverneed->vn_auxptr; | |
7210 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
7211 | { | |
7212 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
7213 | ||
7214 | ivernaux->vna_nodename = | |
7215 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7216 | ivernaux->vna_name); | |
7217 | if (ivernaux->vna_nodename == NULL) | |
d0fb9a8d | 7218 | goto error_return_verref; |
fc0e6df6 PB |
7219 | |
7220 | if (j + 1 < iverneed->vn_cnt) | |
7221 | ivernaux->vna_nextptr = ivernaux + 1; | |
7222 | else | |
7223 | ivernaux->vna_nextptr = NULL; | |
7224 | ||
d0fb9a8d JJ |
7225 | if (ivernaux->vna_next |
7226 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
7227 | goto error_return_verref; | |
7228 | ||
fc0e6df6 PB |
7229 | evernaux = ((Elf_External_Vernaux *) |
7230 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
7231 | ||
7232 | if (ivernaux->vna_other > freeidx) | |
7233 | freeidx = ivernaux->vna_other; | |
7234 | } | |
7235 | ||
7236 | if (i + 1 < hdr->sh_info) | |
7237 | iverneed->vn_nextref = iverneed + 1; | |
7238 | else | |
7239 | iverneed->vn_nextref = NULL; | |
7240 | ||
d0fb9a8d JJ |
7241 | if (iverneed->vn_next |
7242 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7243 | goto error_return_verref; | |
7244 | ||
fc0e6df6 PB |
7245 | everneed = ((Elf_External_Verneed *) |
7246 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
7247 | } | |
7248 | ||
7249 | free (contents); | |
7250 | contents = NULL; | |
7251 | } | |
252b5132 RH |
7252 | |
7253 | if (elf_dynverdef (abfd) != 0) | |
7254 | { | |
7255 | Elf_Internal_Shdr *hdr; | |
7256 | Elf_External_Verdef *everdef; | |
7257 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
7258 | Elf_Internal_Verdef *iverdefarr; |
7259 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 7260 | unsigned int i; |
062e2358 | 7261 | unsigned int maxidx; |
d0fb9a8d | 7262 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
7263 | |
7264 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
7265 | ||
a50b1753 | 7266 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 RH |
7267 | if (contents == NULL) |
7268 | goto error_return; | |
7269 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
217aa764 | 7270 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
7271 | goto error_return; |
7272 | ||
d0fb9a8d JJ |
7273 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verdef)) |
7274 | goto error_return; | |
7275 | ||
7276 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
7277 | >= sizeof (Elf_External_Verdaux)); | |
7278 | contents_end_def = contents + hdr->sh_size | |
7279 | - sizeof (Elf_External_Verdef); | |
7280 | contents_end_aux = contents + hdr->sh_size | |
7281 | - sizeof (Elf_External_Verdaux); | |
7282 | ||
f631889e UD |
7283 | /* We know the number of entries in the section but not the maximum |
7284 | index. Therefore we have to run through all entries and find | |
7285 | the maximum. */ | |
252b5132 | 7286 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
7287 | maxidx = 0; |
7288 | for (i = 0; i < hdr->sh_info; ++i) | |
7289 | { | |
7290 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
7291 | ||
062e2358 AM |
7292 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
7293 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 7294 | |
d0fb9a8d JJ |
7295 | if (iverdefmem.vd_next |
7296 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
7297 | goto error_return; | |
7298 | ||
f631889e UD |
7299 | everdef = ((Elf_External_Verdef *) |
7300 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
7301 | } | |
7302 | ||
fc0e6df6 PB |
7303 | if (default_imported_symver) |
7304 | { | |
7305 | if (freeidx > maxidx) | |
7306 | maxidx = ++freeidx; | |
7307 | else | |
7308 | freeidx = ++maxidx; | |
7309 | } | |
a50b1753 NC |
7310 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7311 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e UD |
7312 | if (elf_tdata (abfd)->verdef == NULL) |
7313 | goto error_return; | |
7314 | ||
7315 | elf_tdata (abfd)->cverdefs = maxidx; | |
7316 | ||
7317 | everdef = (Elf_External_Verdef *) contents; | |
7318 | iverdefarr = elf_tdata (abfd)->verdef; | |
7319 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
7320 | { |
7321 | Elf_External_Verdaux *everdaux; | |
7322 | Elf_Internal_Verdaux *iverdaux; | |
7323 | unsigned int j; | |
7324 | ||
f631889e UD |
7325 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
7326 | ||
d0fb9a8d JJ |
7327 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
7328 | { | |
7329 | error_return_verdef: | |
7330 | elf_tdata (abfd)->verdef = NULL; | |
7331 | elf_tdata (abfd)->cverdefs = 0; | |
7332 | goto error_return; | |
7333 | } | |
7334 | ||
f631889e UD |
7335 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
7336 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
7337 | |
7338 | iverdef->vd_bfd = abfd; | |
7339 | ||
d0fb9a8d JJ |
7340 | if (iverdef->vd_cnt == 0) |
7341 | iverdef->vd_auxptr = NULL; | |
7342 | else | |
7343 | { | |
a50b1753 NC |
7344 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7345 | bfd_alloc2 (abfd, iverdef->vd_cnt, | |
7346 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7347 | if (iverdef->vd_auxptr == NULL) |
7348 | goto error_return_verdef; | |
7349 | } | |
7350 | ||
7351 | if (iverdef->vd_aux | |
7352 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
7353 | goto error_return_verdef; | |
252b5132 RH |
7354 | |
7355 | everdaux = ((Elf_External_Verdaux *) | |
7356 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
7357 | iverdaux = iverdef->vd_auxptr; | |
7358 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
7359 | { | |
7360 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
7361 | ||
7362 | iverdaux->vda_nodename = | |
7363 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7364 | iverdaux->vda_name); | |
7365 | if (iverdaux->vda_nodename == NULL) | |
d0fb9a8d | 7366 | goto error_return_verdef; |
252b5132 RH |
7367 | |
7368 | if (j + 1 < iverdef->vd_cnt) | |
7369 | iverdaux->vda_nextptr = iverdaux + 1; | |
7370 | else | |
7371 | iverdaux->vda_nextptr = NULL; | |
7372 | ||
d0fb9a8d JJ |
7373 | if (iverdaux->vda_next |
7374 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
7375 | goto error_return_verdef; | |
7376 | ||
252b5132 RH |
7377 | everdaux = ((Elf_External_Verdaux *) |
7378 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
7379 | } | |
7380 | ||
d0fb9a8d JJ |
7381 | if (iverdef->vd_cnt) |
7382 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 7383 | |
d0fb9a8d | 7384 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 RH |
7385 | iverdef->vd_nextdef = iverdef + 1; |
7386 | else | |
7387 | iverdef->vd_nextdef = NULL; | |
7388 | ||
7389 | everdef = ((Elf_External_Verdef *) | |
7390 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
7391 | } | |
7392 | ||
7393 | free (contents); | |
7394 | contents = NULL; | |
7395 | } | |
fc0e6df6 | 7396 | else if (default_imported_symver) |
252b5132 | 7397 | { |
fc0e6df6 PB |
7398 | if (freeidx < 3) |
7399 | freeidx = 3; | |
7400 | else | |
7401 | freeidx++; | |
252b5132 | 7402 | |
a50b1753 NC |
7403 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7404 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); | |
fc0e6df6 | 7405 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
7406 | goto error_return; |
7407 | ||
fc0e6df6 PB |
7408 | elf_tdata (abfd)->cverdefs = freeidx; |
7409 | } | |
252b5132 | 7410 | |
fc0e6df6 PB |
7411 | /* Create a default version based on the soname. */ |
7412 | if (default_imported_symver) | |
7413 | { | |
7414 | Elf_Internal_Verdef *iverdef; | |
7415 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 7416 | |
5bb3703f | 7417 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 7418 | |
fc0e6df6 PB |
7419 | iverdef->vd_version = VER_DEF_CURRENT; |
7420 | iverdef->vd_flags = 0; | |
7421 | iverdef->vd_ndx = freeidx; | |
7422 | iverdef->vd_cnt = 1; | |
252b5132 | 7423 | |
fc0e6df6 | 7424 | iverdef->vd_bfd = abfd; |
252b5132 | 7425 | |
fc0e6df6 PB |
7426 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
7427 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 7428 | goto error_return_verdef; |
fc0e6df6 | 7429 | iverdef->vd_nextdef = NULL; |
a50b1753 NC |
7430 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7431 | bfd_alloc (abfd, sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7432 | if (iverdef->vd_auxptr == NULL) |
7433 | goto error_return_verdef; | |
252b5132 | 7434 | |
fc0e6df6 PB |
7435 | iverdaux = iverdef->vd_auxptr; |
7436 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
7437 | iverdaux->vda_nextptr = NULL; | |
252b5132 RH |
7438 | } |
7439 | ||
b34976b6 | 7440 | return TRUE; |
252b5132 RH |
7441 | |
7442 | error_return: | |
5ed6aba4 | 7443 | if (contents != NULL) |
252b5132 | 7444 | free (contents); |
b34976b6 | 7445 | return FALSE; |
252b5132 RH |
7446 | } |
7447 | \f | |
7448 | asymbol * | |
217aa764 | 7449 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
7450 | { |
7451 | elf_symbol_type *newsym; | |
dc810e39 | 7452 | bfd_size_type amt = sizeof (elf_symbol_type); |
252b5132 | 7453 | |
a50b1753 | 7454 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
7455 | if (!newsym) |
7456 | return NULL; | |
7457 | else | |
7458 | { | |
7459 | newsym->symbol.the_bfd = abfd; | |
7460 | return &newsym->symbol; | |
7461 | } | |
7462 | } | |
7463 | ||
7464 | void | |
217aa764 AM |
7465 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
7466 | asymbol *symbol, | |
7467 | symbol_info *ret) | |
252b5132 RH |
7468 | { |
7469 | bfd_symbol_info (symbol, ret); | |
7470 | } | |
7471 | ||
7472 | /* Return whether a symbol name implies a local symbol. Most targets | |
7473 | use this function for the is_local_label_name entry point, but some | |
7474 | override it. */ | |
7475 | ||
b34976b6 | 7476 | bfd_boolean |
217aa764 AM |
7477 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
7478 | const char *name) | |
252b5132 RH |
7479 | { |
7480 | /* Normal local symbols start with ``.L''. */ | |
7481 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 7482 | return TRUE; |
252b5132 RH |
7483 | |
7484 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
7485 | DWARF debugging symbols starting with ``..''. */ | |
7486 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 7487 | return TRUE; |
252b5132 RH |
7488 | |
7489 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
7490 | emitting DWARF debugging output. I suspect this is actually a | |
7491 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
7492 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
7493 | underscore to be emitted on some ELF targets). For ease of use, | |
7494 | we treat such symbols as local. */ | |
7495 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 7496 | return TRUE; |
252b5132 | 7497 | |
b34976b6 | 7498 | return FALSE; |
252b5132 RH |
7499 | } |
7500 | ||
7501 | alent * | |
217aa764 AM |
7502 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
7503 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
7504 | { |
7505 | abort (); | |
7506 | return NULL; | |
7507 | } | |
7508 | ||
b34976b6 | 7509 | bfd_boolean |
217aa764 AM |
7510 | _bfd_elf_set_arch_mach (bfd *abfd, |
7511 | enum bfd_architecture arch, | |
7512 | unsigned long machine) | |
252b5132 RH |
7513 | { |
7514 | /* If this isn't the right architecture for this backend, and this | |
7515 | isn't the generic backend, fail. */ | |
7516 | if (arch != get_elf_backend_data (abfd)->arch | |
7517 | && arch != bfd_arch_unknown | |
7518 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 7519 | return FALSE; |
252b5132 RH |
7520 | |
7521 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
7522 | } | |
7523 | ||
d1fad7c6 NC |
7524 | /* Find the function to a particular section and offset, |
7525 | for error reporting. */ | |
252b5132 | 7526 | |
b34976b6 | 7527 | static bfd_boolean |
b9d678e0 | 7528 | elf_find_function (bfd *abfd, |
217aa764 AM |
7529 | asection *section, |
7530 | asymbol **symbols, | |
7531 | bfd_vma offset, | |
7532 | const char **filename_ptr, | |
7533 | const char **functionname_ptr) | |
252b5132 | 7534 | { |
619a703e AM |
7535 | struct elf_find_function_cache |
7536 | { | |
7537 | asection *last_section; | |
7538 | asymbol *func; | |
7539 | const char *filename; | |
7540 | bfd_size_type func_size; | |
7541 | } *cache; | |
252b5132 | 7542 | |
a06c7d5a NC |
7543 | if (symbols == NULL) |
7544 | return FALSE; | |
7545 | ||
619a703e AM |
7546 | cache = elf_tdata (abfd)->elf_find_function_cache; |
7547 | if (cache == NULL) | |
7548 | { | |
7549 | cache = bfd_zalloc (abfd, sizeof (*cache)); | |
7550 | elf_tdata (abfd)->elf_find_function_cache = cache; | |
7551 | if (cache == NULL) | |
7552 | return FALSE; | |
7553 | } | |
7554 | if (cache->last_section != section | |
7555 | || cache->func == NULL | |
7556 | || offset < cache->func->value | |
7557 | || offset >= cache->func->value + cache->func_size) | |
aef36ac1 AM |
7558 | { |
7559 | asymbol *file; | |
7560 | bfd_vma low_func; | |
7561 | asymbol **p; | |
7562 | /* ??? Given multiple file symbols, it is impossible to reliably | |
7563 | choose the right file name for global symbols. File symbols are | |
7564 | local symbols, and thus all file symbols must sort before any | |
7565 | global symbols. The ELF spec may be interpreted to say that a | |
7566 | file symbol must sort before other local symbols, but currently | |
7567 | ld -r doesn't do this. So, for ld -r output, it is possible to | |
7568 | make a better choice of file name for local symbols by ignoring | |
7569 | file symbols appearing after a given local symbol. */ | |
7570 | enum { nothing_seen, symbol_seen, file_after_symbol_seen } state; | |
7571 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7572 | ||
aef36ac1 AM |
7573 | file = NULL; |
7574 | low_func = 0; | |
7575 | state = nothing_seen; | |
619a703e AM |
7576 | cache->filename = NULL; |
7577 | cache->func = NULL; | |
7578 | cache->func_size = 0; | |
7579 | cache->last_section = section; | |
aef36ac1 AM |
7580 | |
7581 | for (p = symbols; *p != NULL; p++) | |
7582 | { | |
7583 | asymbol *sym = *p; | |
7584 | bfd_vma code_off; | |
7585 | bfd_size_type size; | |
7586 | ||
7587 | if ((sym->flags & BSF_FILE) != 0) | |
7588 | { | |
7589 | file = sym; | |
7590 | if (state == symbol_seen) | |
7591 | state = file_after_symbol_seen; | |
7592 | continue; | |
7593 | } | |
ff9e0f5b | 7594 | |
aef36ac1 AM |
7595 | size = bed->maybe_function_sym (sym, section, &code_off); |
7596 | if (size != 0 | |
7597 | && code_off <= offset | |
7598 | && (code_off > low_func | |
7599 | || (code_off == low_func | |
619a703e | 7600 | && size > cache->func_size))) |
aef36ac1 | 7601 | { |
619a703e AM |
7602 | cache->func = sym; |
7603 | cache->func_size = size; | |
7604 | cache->filename = NULL; | |
aef36ac1 | 7605 | low_func = code_off; |
aef36ac1 AM |
7606 | if (file != NULL |
7607 | && ((sym->flags & BSF_LOCAL) != 0 | |
7608 | || state != file_after_symbol_seen)) | |
619a703e | 7609 | cache->filename = bfd_asymbol_name (file); |
aef36ac1 AM |
7610 | } |
7611 | if (state == nothing_seen) | |
7612 | state = symbol_seen; | |
252b5132 RH |
7613 | } |
7614 | } | |
7615 | ||
619a703e | 7616 | if (cache->func == NULL) |
b34976b6 | 7617 | return FALSE; |
252b5132 | 7618 | |
d1fad7c6 | 7619 | if (filename_ptr) |
619a703e | 7620 | *filename_ptr = cache->filename; |
d1fad7c6 | 7621 | if (functionname_ptr) |
619a703e | 7622 | *functionname_ptr = bfd_asymbol_name (cache->func); |
d1fad7c6 | 7623 | |
b34976b6 | 7624 | return TRUE; |
d1fad7c6 NC |
7625 | } |
7626 | ||
7627 | /* Find the nearest line to a particular section and offset, | |
7628 | for error reporting. */ | |
7629 | ||
b34976b6 | 7630 | bfd_boolean |
217aa764 AM |
7631 | _bfd_elf_find_nearest_line (bfd *abfd, |
7632 | asection *section, | |
7633 | asymbol **symbols, | |
7634 | bfd_vma offset, | |
7635 | const char **filename_ptr, | |
7636 | const char **functionname_ptr, | |
7637 | unsigned int *line_ptr) | |
9b8d1a36 CC |
7638 | { |
7639 | return _bfd_elf_find_nearest_line_discriminator (abfd, section, symbols, | |
7640 | offset, filename_ptr, | |
7641 | functionname_ptr, | |
7642 | line_ptr, | |
7643 | NULL); | |
7644 | } | |
7645 | ||
7646 | bfd_boolean | |
7647 | _bfd_elf_find_nearest_line_discriminator (bfd *abfd, | |
7648 | asection *section, | |
7649 | asymbol **symbols, | |
7650 | bfd_vma offset, | |
7651 | const char **filename_ptr, | |
7652 | const char **functionname_ptr, | |
7653 | unsigned int *line_ptr, | |
7654 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 7655 | { |
b34976b6 | 7656 | bfd_boolean found; |
d1fad7c6 NC |
7657 | |
7658 | if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
7659 | filename_ptr, functionname_ptr, |
7660 | line_ptr)) | |
d1fad7c6 NC |
7661 | { |
7662 | if (!*functionname_ptr) | |
4e8a9624 AM |
7663 | elf_find_function (abfd, section, symbols, offset, |
7664 | *filename_ptr ? NULL : filename_ptr, | |
7665 | functionname_ptr); | |
7666 | ||
b34976b6 | 7667 | return TRUE; |
d1fad7c6 NC |
7668 | } |
7669 | ||
fc28f9aa TG |
7670 | if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections, |
7671 | section, symbols, offset, | |
4e8a9624 | 7672 | filename_ptr, functionname_ptr, |
9b8d1a36 | 7673 | line_ptr, discriminator_ptr, 0, |
4e8a9624 | 7674 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
d1fad7c6 NC |
7675 | { |
7676 | if (!*functionname_ptr) | |
4e8a9624 AM |
7677 | elf_find_function (abfd, section, symbols, offset, |
7678 | *filename_ptr ? NULL : filename_ptr, | |
7679 | functionname_ptr); | |
7680 | ||
b34976b6 | 7681 | return TRUE; |
d1fad7c6 NC |
7682 | } |
7683 | ||
7684 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
7685 | &found, filename_ptr, |
7686 | functionname_ptr, line_ptr, | |
7687 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 7688 | return FALSE; |
dc43ada5 | 7689 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 7690 | return TRUE; |
d1fad7c6 NC |
7691 | |
7692 | if (symbols == NULL) | |
b34976b6 | 7693 | return FALSE; |
d1fad7c6 NC |
7694 | |
7695 | if (! elf_find_function (abfd, section, symbols, offset, | |
4e8a9624 | 7696 | filename_ptr, functionname_ptr)) |
b34976b6 | 7697 | return FALSE; |
d1fad7c6 | 7698 | |
252b5132 | 7699 | *line_ptr = 0; |
b34976b6 | 7700 | return TRUE; |
252b5132 RH |
7701 | } |
7702 | ||
5420f73d L |
7703 | /* Find the line for a symbol. */ |
7704 | ||
7705 | bfd_boolean | |
7706 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7707 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 CC |
7708 | { |
7709 | return _bfd_elf_find_line_discriminator (abfd, symbols, symbol, | |
7710 | filename_ptr, line_ptr, | |
7711 | NULL); | |
7712 | } | |
7713 | ||
7714 | bfd_boolean | |
7715 | _bfd_elf_find_line_discriminator (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7716 | const char **filename_ptr, | |
7717 | unsigned int *line_ptr, | |
7718 | unsigned int *discriminator_ptr) | |
5420f73d L |
7719 | { |
7720 | return _bfd_dwarf2_find_line (abfd, symbols, symbol, | |
9b8d1a36 | 7721 | filename_ptr, line_ptr, discriminator_ptr, 0, |
5420f73d L |
7722 | &elf_tdata (abfd)->dwarf2_find_line_info); |
7723 | } | |
7724 | ||
4ab527b0 FF |
7725 | /* After a call to bfd_find_nearest_line, successive calls to |
7726 | bfd_find_inliner_info can be used to get source information about | |
7727 | each level of function inlining that terminated at the address | |
7728 | passed to bfd_find_nearest_line. Currently this is only supported | |
7729 | for DWARF2 with appropriate DWARF3 extensions. */ | |
7730 | ||
7731 | bfd_boolean | |
7732 | _bfd_elf_find_inliner_info (bfd *abfd, | |
7733 | const char **filename_ptr, | |
7734 | const char **functionname_ptr, | |
7735 | unsigned int *line_ptr) | |
7736 | { | |
7737 | bfd_boolean found; | |
7738 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
7739 | functionname_ptr, line_ptr, | |
7740 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
7741 | return found; | |
7742 | } | |
7743 | ||
252b5132 | 7744 | int |
a6b96beb | 7745 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 7746 | { |
8ded5a0f AM |
7747 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7748 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 7749 | |
a6b96beb | 7750 | if (!info->relocatable) |
8ded5a0f | 7751 | { |
12bd6957 | 7752 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 7753 | |
62d7a5f6 AM |
7754 | if (phdr_size == (bfd_size_type) -1) |
7755 | { | |
7756 | struct elf_segment_map *m; | |
7757 | ||
7758 | phdr_size = 0; | |
12bd6957 | 7759 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 7760 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 7761 | |
62d7a5f6 AM |
7762 | if (phdr_size == 0) |
7763 | phdr_size = get_program_header_size (abfd, info); | |
7764 | } | |
8ded5a0f | 7765 | |
12bd6957 | 7766 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
7767 | ret += phdr_size; |
7768 | } | |
7769 | ||
252b5132 RH |
7770 | return ret; |
7771 | } | |
7772 | ||
b34976b6 | 7773 | bfd_boolean |
217aa764 AM |
7774 | _bfd_elf_set_section_contents (bfd *abfd, |
7775 | sec_ptr section, | |
0f867abe | 7776 | const void *location, |
217aa764 AM |
7777 | file_ptr offset, |
7778 | bfd_size_type count) | |
252b5132 RH |
7779 | { |
7780 | Elf_Internal_Shdr *hdr; | |
dc810e39 | 7781 | bfd_signed_vma pos; |
252b5132 RH |
7782 | |
7783 | if (! abfd->output_has_begun | |
217aa764 | 7784 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 7785 | return FALSE; |
252b5132 RH |
7786 | |
7787 | hdr = &elf_section_data (section)->this_hdr; | |
dc810e39 AM |
7788 | pos = hdr->sh_offset + offset; |
7789 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
7790 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 7791 | return FALSE; |
252b5132 | 7792 | |
b34976b6 | 7793 | return TRUE; |
252b5132 RH |
7794 | } |
7795 | ||
7796 | void | |
217aa764 AM |
7797 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
7798 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
7799 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
7800 | { |
7801 | abort (); | |
7802 | } | |
7803 | ||
252b5132 RH |
7804 | /* Try to convert a non-ELF reloc into an ELF one. */ |
7805 | ||
b34976b6 | 7806 | bfd_boolean |
217aa764 | 7807 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 7808 | { |
c044fabd | 7809 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
7810 | |
7811 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
7812 | { | |
7813 | bfd_reloc_code_real_type code; | |
7814 | reloc_howto_type *howto; | |
7815 | ||
7816 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 7817 | equivalent ELF reloc. */ |
252b5132 RH |
7818 | |
7819 | if (areloc->howto->pc_relative) | |
7820 | { | |
7821 | switch (areloc->howto->bitsize) | |
7822 | { | |
7823 | case 8: | |
7824 | code = BFD_RELOC_8_PCREL; | |
7825 | break; | |
7826 | case 12: | |
7827 | code = BFD_RELOC_12_PCREL; | |
7828 | break; | |
7829 | case 16: | |
7830 | code = BFD_RELOC_16_PCREL; | |
7831 | break; | |
7832 | case 24: | |
7833 | code = BFD_RELOC_24_PCREL; | |
7834 | break; | |
7835 | case 32: | |
7836 | code = BFD_RELOC_32_PCREL; | |
7837 | break; | |
7838 | case 64: | |
7839 | code = BFD_RELOC_64_PCREL; | |
7840 | break; | |
7841 | default: | |
7842 | goto fail; | |
7843 | } | |
7844 | ||
7845 | howto = bfd_reloc_type_lookup (abfd, code); | |
7846 | ||
7847 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
7848 | { | |
7849 | if (howto->pcrel_offset) | |
7850 | areloc->addend += areloc->address; | |
7851 | else | |
7852 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
7853 | } | |
7854 | } | |
7855 | else | |
7856 | { | |
7857 | switch (areloc->howto->bitsize) | |
7858 | { | |
7859 | case 8: | |
7860 | code = BFD_RELOC_8; | |
7861 | break; | |
7862 | case 14: | |
7863 | code = BFD_RELOC_14; | |
7864 | break; | |
7865 | case 16: | |
7866 | code = BFD_RELOC_16; | |
7867 | break; | |
7868 | case 26: | |
7869 | code = BFD_RELOC_26; | |
7870 | break; | |
7871 | case 32: | |
7872 | code = BFD_RELOC_32; | |
7873 | break; | |
7874 | case 64: | |
7875 | code = BFD_RELOC_64; | |
7876 | break; | |
7877 | default: | |
7878 | goto fail; | |
7879 | } | |
7880 | ||
7881 | howto = bfd_reloc_type_lookup (abfd, code); | |
7882 | } | |
7883 | ||
7884 | if (howto) | |
7885 | areloc->howto = howto; | |
7886 | else | |
7887 | goto fail; | |
7888 | } | |
7889 | ||
b34976b6 | 7890 | return TRUE; |
252b5132 RH |
7891 | |
7892 | fail: | |
7893 | (*_bfd_error_handler) | |
d003868e AM |
7894 | (_("%B: unsupported relocation type %s"), |
7895 | abfd, areloc->howto->name); | |
252b5132 | 7896 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7897 | return FALSE; |
252b5132 RH |
7898 | } |
7899 | ||
b34976b6 | 7900 | bfd_boolean |
217aa764 | 7901 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 7902 | { |
d9071b0c TG |
7903 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
7904 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 7905 | { |
c0355132 | 7906 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 7907 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 7908 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
7909 | } |
7910 | ||
7911 | return _bfd_generic_close_and_cleanup (abfd); | |
7912 | } | |
7913 | ||
7914 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
7915 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
7916 | range-checking to interfere. There is nothing else to do in processing | |
7917 | this reloc. */ | |
7918 | ||
7919 | bfd_reloc_status_type | |
217aa764 AM |
7920 | _bfd_elf_rel_vtable_reloc_fn |
7921 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 7922 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
7923 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
7924 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
7925 | { |
7926 | return bfd_reloc_ok; | |
7927 | } | |
252b5132 RH |
7928 | \f |
7929 | /* Elf core file support. Much of this only works on native | |
7930 | toolchains, since we rely on knowing the | |
7931 | machine-dependent procfs structure in order to pick | |
c044fabd | 7932 | out details about the corefile. */ |
252b5132 RH |
7933 | |
7934 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
7935 | /* Needed for new procfs interface on sparc-solaris. */ |
7936 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
7937 | # include <sys/procfs.h> |
7938 | #endif | |
7939 | ||
261b8d08 PA |
7940 | /* Return a PID that identifies a "thread" for threaded cores, or the |
7941 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
7942 | |
7943 | static int | |
217aa764 | 7944 | elfcore_make_pid (bfd *abfd) |
252b5132 | 7945 | { |
261b8d08 PA |
7946 | int pid; |
7947 | ||
228e534f | 7948 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 7949 | if (pid == 0) |
228e534f | 7950 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
7951 | |
7952 | return pid; | |
252b5132 RH |
7953 | } |
7954 | ||
252b5132 RH |
7955 | /* If there isn't a section called NAME, make one, using |
7956 | data from SECT. Note, this function will generate a | |
7957 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 7958 | overwrite it. */ |
252b5132 | 7959 | |
b34976b6 | 7960 | static bfd_boolean |
217aa764 | 7961 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 7962 | { |
c044fabd | 7963 | asection *sect2; |
252b5132 RH |
7964 | |
7965 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 7966 | return TRUE; |
252b5132 | 7967 | |
117ed4f8 | 7968 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 7969 | if (sect2 == NULL) |
b34976b6 | 7970 | return FALSE; |
252b5132 | 7971 | |
eea6121a | 7972 | sect2->size = sect->size; |
252b5132 | 7973 | sect2->filepos = sect->filepos; |
252b5132 | 7974 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 7975 | return TRUE; |
252b5132 RH |
7976 | } |
7977 | ||
bb0082d6 AM |
7978 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
7979 | actually creates up to two pseudosections: | |
7980 | - For the single-threaded case, a section named NAME, unless | |
7981 | such a section already exists. | |
7982 | - For the multi-threaded case, a section named "NAME/PID", where | |
7983 | PID is elfcore_make_pid (abfd). | |
7984 | Both pseudosections have identical contents. */ | |
b34976b6 | 7985 | bfd_boolean |
217aa764 AM |
7986 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
7987 | char *name, | |
7988 | size_t size, | |
7989 | ufile_ptr filepos) | |
bb0082d6 AM |
7990 | { |
7991 | char buf[100]; | |
7992 | char *threaded_name; | |
d4c88bbb | 7993 | size_t len; |
bb0082d6 AM |
7994 | asection *sect; |
7995 | ||
7996 | /* Build the section name. */ | |
7997 | ||
7998 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 7999 | len = strlen (buf) + 1; |
a50b1753 | 8000 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 8001 | if (threaded_name == NULL) |
b34976b6 | 8002 | return FALSE; |
d4c88bbb | 8003 | memcpy (threaded_name, buf, len); |
bb0082d6 | 8004 | |
117ed4f8 AM |
8005 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
8006 | SEC_HAS_CONTENTS); | |
bb0082d6 | 8007 | if (sect == NULL) |
b34976b6 | 8008 | return FALSE; |
eea6121a | 8009 | sect->size = size; |
bb0082d6 | 8010 | sect->filepos = filepos; |
bb0082d6 AM |
8011 | sect->alignment_power = 2; |
8012 | ||
936e320b | 8013 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
8014 | } |
8015 | ||
252b5132 | 8016 | /* prstatus_t exists on: |
4a938328 | 8017 | solaris 2.5+ |
252b5132 RH |
8018 | linux 2.[01] + glibc |
8019 | unixware 4.2 | |
8020 | */ | |
8021 | ||
8022 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 8023 | |
b34976b6 | 8024 | static bfd_boolean |
217aa764 | 8025 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8026 | { |
eea6121a | 8027 | size_t size; |
7ee38065 | 8028 | int offset; |
252b5132 | 8029 | |
4a938328 MS |
8030 | if (note->descsz == sizeof (prstatus_t)) |
8031 | { | |
8032 | prstatus_t prstat; | |
252b5132 | 8033 | |
eea6121a | 8034 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8035 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 8036 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 8037 | |
fa49d224 NC |
8038 | /* Do not overwrite the core signal if it |
8039 | has already been set by another thread. */ | |
228e534f AM |
8040 | if (elf_tdata (abfd)->core->signal == 0) |
8041 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
8042 | if (elf_tdata (abfd)->core->pid == 0) | |
8043 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 8044 | |
4a938328 MS |
8045 | /* pr_who exists on: |
8046 | solaris 2.5+ | |
8047 | unixware 4.2 | |
8048 | pr_who doesn't exist on: | |
8049 | linux 2.[01] | |
8050 | */ | |
252b5132 | 8051 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 8052 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 8053 | #else |
228e534f | 8054 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 8055 | #endif |
4a938328 | 8056 | } |
7ee38065 | 8057 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
8058 | else if (note->descsz == sizeof (prstatus32_t)) |
8059 | { | |
8060 | /* 64-bit host, 32-bit corefile */ | |
8061 | prstatus32_t prstat; | |
8062 | ||
eea6121a | 8063 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8064 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
8065 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
8066 | ||
fa49d224 NC |
8067 | /* Do not overwrite the core signal if it |
8068 | has already been set by another thread. */ | |
228e534f AM |
8069 | if (elf_tdata (abfd)->core->signal == 0) |
8070 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
8071 | if (elf_tdata (abfd)->core->pid == 0) | |
8072 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
8073 | |
8074 | /* pr_who exists on: | |
8075 | solaris 2.5+ | |
8076 | unixware 4.2 | |
8077 | pr_who doesn't exist on: | |
8078 | linux 2.[01] | |
8079 | */ | |
7ee38065 | 8080 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 8081 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 8082 | #else |
228e534f | 8083 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
8084 | #endif |
8085 | } | |
7ee38065 | 8086 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
8087 | else |
8088 | { | |
8089 | /* Fail - we don't know how to handle any other | |
8090 | note size (ie. data object type). */ | |
b34976b6 | 8091 | return TRUE; |
4a938328 | 8092 | } |
252b5132 | 8093 | |
bb0082d6 | 8094 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 8095 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 8096 | size, note->descpos + offset); |
252b5132 RH |
8097 | } |
8098 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
8099 | ||
bb0082d6 | 8100 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 8101 | static bfd_boolean |
217aa764 AM |
8102 | elfcore_make_note_pseudosection (bfd *abfd, |
8103 | char *name, | |
8104 | Elf_Internal_Note *note) | |
252b5132 | 8105 | { |
936e320b AM |
8106 | return _bfd_elfcore_make_pseudosection (abfd, name, |
8107 | note->descsz, note->descpos); | |
252b5132 RH |
8108 | } |
8109 | ||
ff08c6bb JB |
8110 | /* There isn't a consistent prfpregset_t across platforms, |
8111 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
8112 | data structure apart. */ |
8113 | ||
b34976b6 | 8114 | static bfd_boolean |
217aa764 | 8115 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8116 | { |
8117 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8118 | } | |
8119 | ||
ff08c6bb | 8120 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 8121 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 8122 | literally. */ |
c044fabd | 8123 | |
b34976b6 | 8124 | static bfd_boolean |
217aa764 | 8125 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8126 | { |
8127 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8128 | } | |
8129 | ||
4339cae0 L |
8130 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
8131 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
8132 | contents literally. */ | |
8133 | ||
8134 | static bfd_boolean | |
8135 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
8136 | { | |
8137 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
8138 | } | |
8139 | ||
97753bd5 AM |
8140 | static bfd_boolean |
8141 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
8142 | { | |
8143 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
8144 | } | |
8145 | ||
89eeb0bc LM |
8146 | static bfd_boolean |
8147 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
8148 | { | |
8149 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
8150 | } | |
97753bd5 | 8151 | |
0675e188 UW |
8152 | static bfd_boolean |
8153 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
8154 | { | |
8155 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
8156 | } | |
8157 | ||
d7eeb400 MS |
8158 | static bfd_boolean |
8159 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
8160 | { | |
8161 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
8162 | } | |
8163 | ||
8164 | static bfd_boolean | |
8165 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
8166 | { | |
8167 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
8168 | } | |
8169 | ||
8170 | static bfd_boolean | |
8171 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
8172 | { | |
8173 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
8174 | } | |
8175 | ||
8176 | static bfd_boolean | |
8177 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
8178 | { | |
8179 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
8180 | } | |
8181 | ||
8182 | static bfd_boolean | |
8183 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
8184 | { | |
8185 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
8186 | } | |
8187 | ||
355b81d9 UW |
8188 | static bfd_boolean |
8189 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
8190 | { | |
8191 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
8192 | } | |
8193 | ||
8194 | static bfd_boolean | |
8195 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
8196 | { | |
8197 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
8198 | } | |
8199 | ||
abb3f6cc NC |
8200 | static bfd_boolean |
8201 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
8202 | { | |
8203 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
8204 | } | |
8205 | ||
faa9a424 UW |
8206 | static bfd_boolean |
8207 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
8208 | { | |
8209 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
8210 | } | |
8211 | ||
652451f8 YZ |
8212 | static bfd_boolean |
8213 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
8214 | { | |
8215 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
8216 | } | |
8217 | ||
8218 | static bfd_boolean | |
8219 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
8220 | { | |
8221 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
8222 | } | |
8223 | ||
8224 | static bfd_boolean | |
8225 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
8226 | { | |
8227 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
8228 | } | |
8229 | ||
252b5132 | 8230 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 8231 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 8232 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8233 | typedef prpsinfo32_t elfcore_psinfo32_t; |
8234 | #endif | |
252b5132 RH |
8235 | #endif |
8236 | ||
8237 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 8238 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 8239 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8240 | typedef psinfo32_t elfcore_psinfo32_t; |
8241 | #endif | |
252b5132 RH |
8242 | #endif |
8243 | ||
252b5132 RH |
8244 | /* return a malloc'ed copy of a string at START which is at |
8245 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 8246 | the copy will always have a terminating '\0'. */ |
252b5132 | 8247 | |
936e320b | 8248 | char * |
217aa764 | 8249 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 8250 | { |
dc810e39 | 8251 | char *dups; |
a50b1753 | 8252 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 8253 | size_t len; |
252b5132 RH |
8254 | |
8255 | if (end == NULL) | |
8256 | len = max; | |
8257 | else | |
8258 | len = end - start; | |
8259 | ||
a50b1753 | 8260 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 8261 | if (dups == NULL) |
252b5132 RH |
8262 | return NULL; |
8263 | ||
dc810e39 AM |
8264 | memcpy (dups, start, len); |
8265 | dups[len] = '\0'; | |
252b5132 | 8266 | |
dc810e39 | 8267 | return dups; |
252b5132 RH |
8268 | } |
8269 | ||
bb0082d6 | 8270 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 8271 | static bfd_boolean |
217aa764 | 8272 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8273 | { |
4a938328 MS |
8274 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
8275 | { | |
8276 | elfcore_psinfo_t psinfo; | |
252b5132 | 8277 | |
7ee38065 | 8278 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8279 | |
335e41d4 | 8280 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 8281 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 8282 | #endif |
228e534f | 8283 | elf_tdata (abfd)->core->program |
936e320b AM |
8284 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8285 | sizeof (psinfo.pr_fname)); | |
252b5132 | 8286 | |
228e534f | 8287 | elf_tdata (abfd)->core->command |
936e320b AM |
8288 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8289 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 8290 | } |
7ee38065 | 8291 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
8292 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
8293 | { | |
8294 | /* 64-bit host, 32-bit corefile */ | |
8295 | elfcore_psinfo32_t psinfo; | |
8296 | ||
7ee38065 | 8297 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8298 | |
335e41d4 | 8299 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 8300 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 8301 | #endif |
228e534f | 8302 | elf_tdata (abfd)->core->program |
936e320b AM |
8303 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8304 | sizeof (psinfo.pr_fname)); | |
4a938328 | 8305 | |
228e534f | 8306 | elf_tdata (abfd)->core->command |
936e320b AM |
8307 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8308 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
8309 | } |
8310 | #endif | |
8311 | ||
8312 | else | |
8313 | { | |
8314 | /* Fail - we don't know how to handle any other | |
8315 | note size (ie. data object type). */ | |
b34976b6 | 8316 | return TRUE; |
4a938328 | 8317 | } |
252b5132 RH |
8318 | |
8319 | /* Note that for some reason, a spurious space is tacked | |
8320 | onto the end of the args in some (at least one anyway) | |
c044fabd | 8321 | implementations, so strip it off if it exists. */ |
252b5132 RH |
8322 | |
8323 | { | |
228e534f | 8324 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
8325 | int n = strlen (command); |
8326 | ||
8327 | if (0 < n && command[n - 1] == ' ') | |
8328 | command[n - 1] = '\0'; | |
8329 | } | |
8330 | ||
b34976b6 | 8331 | return TRUE; |
252b5132 RH |
8332 | } |
8333 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
8334 | ||
252b5132 | 8335 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 8336 | static bfd_boolean |
217aa764 | 8337 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8338 | { |
f572a39d AM |
8339 | if (note->descsz == sizeof (pstatus_t) |
8340 | #if defined (HAVE_PXSTATUS_T) | |
8341 | || note->descsz == sizeof (pxstatus_t) | |
8342 | #endif | |
8343 | ) | |
4a938328 MS |
8344 | { |
8345 | pstatus_t pstat; | |
252b5132 | 8346 | |
4a938328 | 8347 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8348 | |
228e534f | 8349 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 8350 | } |
7ee38065 | 8351 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
8352 | else if (note->descsz == sizeof (pstatus32_t)) |
8353 | { | |
8354 | /* 64-bit host, 32-bit corefile */ | |
8355 | pstatus32_t pstat; | |
252b5132 | 8356 | |
4a938328 | 8357 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8358 | |
228e534f | 8359 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
8360 | } |
8361 | #endif | |
252b5132 RH |
8362 | /* Could grab some more details from the "representative" |
8363 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 8364 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 8365 | |
b34976b6 | 8366 | return TRUE; |
252b5132 RH |
8367 | } |
8368 | #endif /* defined (HAVE_PSTATUS_T) */ | |
8369 | ||
252b5132 | 8370 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 8371 | static bfd_boolean |
217aa764 | 8372 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
8373 | { |
8374 | lwpstatus_t lwpstat; | |
8375 | char buf[100]; | |
c044fabd | 8376 | char *name; |
d4c88bbb | 8377 | size_t len; |
c044fabd | 8378 | asection *sect; |
252b5132 | 8379 | |
f572a39d AM |
8380 | if (note->descsz != sizeof (lwpstat) |
8381 | #if defined (HAVE_LWPXSTATUS_T) | |
8382 | && note->descsz != sizeof (lwpxstatus_t) | |
8383 | #endif | |
8384 | ) | |
b34976b6 | 8385 | return TRUE; |
252b5132 RH |
8386 | |
8387 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
8388 | ||
228e534f | 8389 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
8390 | /* Do not overwrite the core signal if it has already been set by |
8391 | another thread. */ | |
228e534f AM |
8392 | if (elf_tdata (abfd)->core->signal == 0) |
8393 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 8394 | |
c044fabd | 8395 | /* Make a ".reg/999" section. */ |
252b5132 RH |
8396 | |
8397 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8398 | len = strlen (buf) + 1; |
217aa764 | 8399 | name = bfd_alloc (abfd, len); |
252b5132 | 8400 | if (name == NULL) |
b34976b6 | 8401 | return FALSE; |
d4c88bbb | 8402 | memcpy (name, buf, len); |
252b5132 | 8403 | |
117ed4f8 | 8404 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8405 | if (sect == NULL) |
b34976b6 | 8406 | return FALSE; |
252b5132 RH |
8407 | |
8408 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8409 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
8410 | sect->filepos = note->descpos |
8411 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
8412 | #endif | |
8413 | ||
8414 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 8415 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
8416 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
8417 | #endif | |
8418 | ||
252b5132 RH |
8419 | sect->alignment_power = 2; |
8420 | ||
8421 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 8422 | return FALSE; |
252b5132 RH |
8423 | |
8424 | /* Make a ".reg2/999" section */ | |
8425 | ||
8426 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8427 | len = strlen (buf) + 1; |
217aa764 | 8428 | name = bfd_alloc (abfd, len); |
252b5132 | 8429 | if (name == NULL) |
b34976b6 | 8430 | return FALSE; |
d4c88bbb | 8431 | memcpy (name, buf, len); |
252b5132 | 8432 | |
117ed4f8 | 8433 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8434 | if (sect == NULL) |
b34976b6 | 8435 | return FALSE; |
252b5132 RH |
8436 | |
8437 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8438 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
8439 | sect->filepos = note->descpos |
8440 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
8441 | #endif | |
8442 | ||
8443 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 8444 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
8445 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
8446 | #endif | |
8447 | ||
252b5132 RH |
8448 | sect->alignment_power = 2; |
8449 | ||
936e320b | 8450 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
8451 | } |
8452 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
8453 | ||
b34976b6 | 8454 | static bfd_boolean |
217aa764 | 8455 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
8456 | { |
8457 | char buf[30]; | |
c044fabd | 8458 | char *name; |
d4c88bbb | 8459 | size_t len; |
c044fabd | 8460 | asection *sect; |
4a6636fb PA |
8461 | int type; |
8462 | int is_active_thread; | |
8463 | bfd_vma base_addr; | |
16e9c715 | 8464 | |
4a6636fb | 8465 | if (note->descsz < 728) |
b34976b6 | 8466 | return TRUE; |
16e9c715 | 8467 | |
4a6636fb PA |
8468 | if (! CONST_STRNEQ (note->namedata, "win32")) |
8469 | return TRUE; | |
8470 | ||
8471 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 8472 | |
4a6636fb | 8473 | switch (type) |
16e9c715 | 8474 | { |
4a6636fb | 8475 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 8476 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 8477 | /* process_info.pid */ |
228e534f | 8478 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 8479 | /* process_info.signal */ |
228e534f | 8480 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 8481 | break; |
16e9c715 | 8482 | |
4a6636fb | 8483 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 8484 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
8485 | /* thread_info.tid */ |
8486 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 8487 | |
d4c88bbb | 8488 | len = strlen (buf) + 1; |
a50b1753 | 8489 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8490 | if (name == NULL) |
b34976b6 | 8491 | return FALSE; |
c044fabd | 8492 | |
d4c88bbb | 8493 | memcpy (name, buf, len); |
16e9c715 | 8494 | |
117ed4f8 | 8495 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 8496 | if (sect == NULL) |
b34976b6 | 8497 | return FALSE; |
c044fabd | 8498 | |
4a6636fb PA |
8499 | /* sizeof (thread_info.thread_context) */ |
8500 | sect->size = 716; | |
8501 | /* offsetof (thread_info.thread_context) */ | |
8502 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
8503 | sect->alignment_power = 2; |
8504 | ||
4a6636fb PA |
8505 | /* thread_info.is_active_thread */ |
8506 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
8507 | ||
8508 | if (is_active_thread) | |
16e9c715 | 8509 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 8510 | return FALSE; |
16e9c715 NC |
8511 | break; |
8512 | ||
4a6636fb | 8513 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 8514 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
8515 | /* module_info.base_address */ |
8516 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 8517 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 8518 | |
d4c88bbb | 8519 | len = strlen (buf) + 1; |
a50b1753 | 8520 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8521 | if (name == NULL) |
b34976b6 | 8522 | return FALSE; |
c044fabd | 8523 | |
d4c88bbb | 8524 | memcpy (name, buf, len); |
252b5132 | 8525 | |
117ed4f8 | 8526 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 8527 | |
16e9c715 | 8528 | if (sect == NULL) |
b34976b6 | 8529 | return FALSE; |
c044fabd | 8530 | |
eea6121a | 8531 | sect->size = note->descsz; |
16e9c715 | 8532 | sect->filepos = note->descpos; |
16e9c715 NC |
8533 | sect->alignment_power = 2; |
8534 | break; | |
8535 | ||
8536 | default: | |
b34976b6 | 8537 | return TRUE; |
16e9c715 NC |
8538 | } |
8539 | ||
b34976b6 | 8540 | return TRUE; |
16e9c715 | 8541 | } |
252b5132 | 8542 | |
b34976b6 | 8543 | static bfd_boolean |
217aa764 | 8544 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8545 | { |
9c5bfbb7 | 8546 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 8547 | |
252b5132 RH |
8548 | switch (note->type) |
8549 | { | |
8550 | default: | |
b34976b6 | 8551 | return TRUE; |
252b5132 | 8552 | |
252b5132 | 8553 | case NT_PRSTATUS: |
bb0082d6 AM |
8554 | if (bed->elf_backend_grok_prstatus) |
8555 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 8556 | return TRUE; |
bb0082d6 | 8557 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 8558 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 8559 | #else |
b34976b6 | 8560 | return TRUE; |
252b5132 RH |
8561 | #endif |
8562 | ||
8563 | #if defined (HAVE_PSTATUS_T) | |
8564 | case NT_PSTATUS: | |
8565 | return elfcore_grok_pstatus (abfd, note); | |
8566 | #endif | |
8567 | ||
8568 | #if defined (HAVE_LWPSTATUS_T) | |
8569 | case NT_LWPSTATUS: | |
8570 | return elfcore_grok_lwpstatus (abfd, note); | |
8571 | #endif | |
8572 | ||
8573 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
8574 | return elfcore_grok_prfpreg (abfd, note); | |
8575 | ||
c044fabd | 8576 | case NT_WIN32PSTATUS: |
16e9c715 | 8577 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 8578 | |
c044fabd | 8579 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
8580 | if (note->namesz == 6 |
8581 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
8582 | return elfcore_grok_prxfpreg (abfd, note); |
8583 | else | |
b34976b6 | 8584 | return TRUE; |
ff08c6bb | 8585 | |
4339cae0 L |
8586 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
8587 | if (note->namesz == 6 | |
8588 | && strcmp (note->namedata, "LINUX") == 0) | |
8589 | return elfcore_grok_xstatereg (abfd, note); | |
8590 | else | |
8591 | return TRUE; | |
8592 | ||
97753bd5 AM |
8593 | case NT_PPC_VMX: |
8594 | if (note->namesz == 6 | |
8595 | && strcmp (note->namedata, "LINUX") == 0) | |
8596 | return elfcore_grok_ppc_vmx (abfd, note); | |
8597 | else | |
8598 | return TRUE; | |
8599 | ||
89eeb0bc LM |
8600 | case NT_PPC_VSX: |
8601 | if (note->namesz == 6 | |
8602 | && strcmp (note->namedata, "LINUX") == 0) | |
8603 | return elfcore_grok_ppc_vsx (abfd, note); | |
8604 | else | |
8605 | return TRUE; | |
8606 | ||
0675e188 UW |
8607 | case NT_S390_HIGH_GPRS: |
8608 | if (note->namesz == 6 | |
8609 | && strcmp (note->namedata, "LINUX") == 0) | |
8610 | return elfcore_grok_s390_high_gprs (abfd, note); | |
8611 | else | |
8612 | return TRUE; | |
8613 | ||
d7eeb400 MS |
8614 | case NT_S390_TIMER: |
8615 | if (note->namesz == 6 | |
8616 | && strcmp (note->namedata, "LINUX") == 0) | |
8617 | return elfcore_grok_s390_timer (abfd, note); | |
8618 | else | |
8619 | return TRUE; | |
8620 | ||
8621 | case NT_S390_TODCMP: | |
8622 | if (note->namesz == 6 | |
8623 | && strcmp (note->namedata, "LINUX") == 0) | |
8624 | return elfcore_grok_s390_todcmp (abfd, note); | |
8625 | else | |
8626 | return TRUE; | |
8627 | ||
8628 | case NT_S390_TODPREG: | |
8629 | if (note->namesz == 6 | |
8630 | && strcmp (note->namedata, "LINUX") == 0) | |
8631 | return elfcore_grok_s390_todpreg (abfd, note); | |
8632 | else | |
8633 | return TRUE; | |
8634 | ||
8635 | case NT_S390_CTRS: | |
8636 | if (note->namesz == 6 | |
8637 | && strcmp (note->namedata, "LINUX") == 0) | |
8638 | return elfcore_grok_s390_ctrs (abfd, note); | |
8639 | else | |
8640 | return TRUE; | |
8641 | ||
8642 | case NT_S390_PREFIX: | |
8643 | if (note->namesz == 6 | |
8644 | && strcmp (note->namedata, "LINUX") == 0) | |
8645 | return elfcore_grok_s390_prefix (abfd, note); | |
8646 | else | |
8647 | return TRUE; | |
8648 | ||
355b81d9 UW |
8649 | case NT_S390_LAST_BREAK: |
8650 | if (note->namesz == 6 | |
8651 | && strcmp (note->namedata, "LINUX") == 0) | |
8652 | return elfcore_grok_s390_last_break (abfd, note); | |
8653 | else | |
8654 | return TRUE; | |
8655 | ||
8656 | case NT_S390_SYSTEM_CALL: | |
8657 | if (note->namesz == 6 | |
8658 | && strcmp (note->namedata, "LINUX") == 0) | |
8659 | return elfcore_grok_s390_system_call (abfd, note); | |
8660 | else | |
8661 | return TRUE; | |
8662 | ||
abb3f6cc NC |
8663 | case NT_S390_TDB: |
8664 | if (note->namesz == 6 | |
8665 | && strcmp (note->namedata, "LINUX") == 0) | |
8666 | return elfcore_grok_s390_tdb (abfd, note); | |
8667 | else | |
8668 | return TRUE; | |
8669 | ||
faa9a424 UW |
8670 | case NT_ARM_VFP: |
8671 | if (note->namesz == 6 | |
8672 | && strcmp (note->namedata, "LINUX") == 0) | |
8673 | return elfcore_grok_arm_vfp (abfd, note); | |
8674 | else | |
8675 | return TRUE; | |
8676 | ||
652451f8 YZ |
8677 | case NT_ARM_TLS: |
8678 | if (note->namesz == 6 | |
8679 | && strcmp (note->namedata, "LINUX") == 0) | |
8680 | return elfcore_grok_aarch_tls (abfd, note); | |
8681 | else | |
8682 | return TRUE; | |
8683 | ||
8684 | case NT_ARM_HW_BREAK: | |
8685 | if (note->namesz == 6 | |
8686 | && strcmp (note->namedata, "LINUX") == 0) | |
8687 | return elfcore_grok_aarch_hw_break (abfd, note); | |
8688 | else | |
8689 | return TRUE; | |
8690 | ||
8691 | case NT_ARM_HW_WATCH: | |
8692 | if (note->namesz == 6 | |
8693 | && strcmp (note->namedata, "LINUX") == 0) | |
8694 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
8695 | else | |
8696 | return TRUE; | |
8697 | ||
252b5132 RH |
8698 | case NT_PRPSINFO: |
8699 | case NT_PSINFO: | |
bb0082d6 AM |
8700 | if (bed->elf_backend_grok_psinfo) |
8701 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 8702 | return TRUE; |
bb0082d6 | 8703 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 8704 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 8705 | #else |
b34976b6 | 8706 | return TRUE; |
252b5132 | 8707 | #endif |
3333a7c3 RM |
8708 | |
8709 | case NT_AUXV: | |
8710 | { | |
117ed4f8 AM |
8711 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
8712 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
8713 | |
8714 | if (sect == NULL) | |
8715 | return FALSE; | |
eea6121a | 8716 | sect->size = note->descsz; |
3333a7c3 | 8717 | sect->filepos = note->descpos; |
3333a7c3 RM |
8718 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
8719 | ||
8720 | return TRUE; | |
8721 | } | |
9015683b | 8722 | |
451b7c33 TT |
8723 | case NT_FILE: |
8724 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
8725 | note); | |
8726 | ||
9015683b TT |
8727 | case NT_SIGINFO: |
8728 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
8729 | note); | |
252b5132 RH |
8730 | } |
8731 | } | |
8732 | ||
718175fa JK |
8733 | static bfd_boolean |
8734 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
8735 | { | |
30e8ee25 AM |
8736 | struct elf_obj_tdata *t; |
8737 | ||
8738 | if (note->descsz == 0) | |
8739 | return FALSE; | |
8740 | ||
8741 | t = elf_tdata (abfd); | |
c0355132 | 8742 | t->build_id = bfd_alloc (abfd, sizeof (*t->build_id) - 1 + note->descsz); |
30e8ee25 | 8743 | if (t->build_id == NULL) |
718175fa JK |
8744 | return FALSE; |
8745 | ||
c0355132 AM |
8746 | t->build_id->size = note->descsz; |
8747 | memcpy (t->build_id->data, note->descdata, note->descsz); | |
718175fa JK |
8748 | |
8749 | return TRUE; | |
8750 | } | |
8751 | ||
8752 | static bfd_boolean | |
8753 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
8754 | { | |
8755 | switch (note->type) | |
8756 | { | |
8757 | default: | |
8758 | return TRUE; | |
8759 | ||
8760 | case NT_GNU_BUILD_ID: | |
8761 | return elfobj_grok_gnu_build_id (abfd, note); | |
8762 | } | |
8763 | } | |
8764 | ||
e21e5835 NC |
8765 | static bfd_boolean |
8766 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
8767 | { | |
8768 | struct sdt_note *cur = | |
8769 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
8770 | + note->descsz); | |
8771 | ||
8772 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
8773 | cur->size = (bfd_size_type) note->descsz; | |
8774 | memcpy (cur->data, note->descdata, note->descsz); | |
8775 | ||
8776 | elf_tdata (abfd)->sdt_note_head = cur; | |
8777 | ||
8778 | return TRUE; | |
8779 | } | |
8780 | ||
8781 | static bfd_boolean | |
8782 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
8783 | { | |
8784 | switch (note->type) | |
8785 | { | |
8786 | case NT_STAPSDT: | |
8787 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
8788 | ||
8789 | default: | |
8790 | return TRUE; | |
8791 | } | |
8792 | } | |
8793 | ||
b34976b6 | 8794 | static bfd_boolean |
217aa764 | 8795 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
8796 | { |
8797 | char *cp; | |
8798 | ||
8799 | cp = strchr (note->namedata, '@'); | |
8800 | if (cp != NULL) | |
8801 | { | |
d2b64500 | 8802 | *lwpidp = atoi(cp + 1); |
b34976b6 | 8803 | return TRUE; |
50b2bdb7 | 8804 | } |
b34976b6 | 8805 | return FALSE; |
50b2bdb7 AM |
8806 | } |
8807 | ||
b34976b6 | 8808 | static bfd_boolean |
217aa764 | 8809 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 8810 | { |
50b2bdb7 | 8811 | /* Signal number at offset 0x08. */ |
228e534f | 8812 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
8813 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
8814 | ||
8815 | /* Process ID at offset 0x50. */ | |
228e534f | 8816 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
8817 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
8818 | ||
8819 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 8820 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
8821 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
8822 | ||
7720ba9f MK |
8823 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
8824 | note); | |
50b2bdb7 AM |
8825 | } |
8826 | ||
b34976b6 | 8827 | static bfd_boolean |
217aa764 | 8828 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
8829 | { |
8830 | int lwp; | |
8831 | ||
8832 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 8833 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 8834 | |
b4db1224 | 8835 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
8836 | { |
8837 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
8838 | find this note before any of the others, which is fine, |
8839 | since the kernel writes this note out first when it | |
8840 | creates a core file. */ | |
47d9a591 | 8841 | |
50b2bdb7 AM |
8842 | return elfcore_grok_netbsd_procinfo (abfd, note); |
8843 | } | |
8844 | ||
b4db1224 JT |
8845 | /* As of Jan 2002 there are no other machine-independent notes |
8846 | defined for NetBSD core files. If the note type is less | |
8847 | than the start of the machine-dependent note types, we don't | |
8848 | understand it. */ | |
47d9a591 | 8849 | |
b4db1224 | 8850 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 8851 | return TRUE; |
50b2bdb7 AM |
8852 | |
8853 | ||
8854 | switch (bfd_get_arch (abfd)) | |
8855 | { | |
08a40648 AM |
8856 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
8857 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
8858 | |
8859 | case bfd_arch_alpha: | |
8860 | case bfd_arch_sparc: | |
8861 | switch (note->type) | |
08a40648 AM |
8862 | { |
8863 | case NT_NETBSDCORE_FIRSTMACH+0: | |
8864 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8865 | |
08a40648 AM |
8866 | case NT_NETBSDCORE_FIRSTMACH+2: |
8867 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8868 | |
08a40648 AM |
8869 | default: |
8870 | return TRUE; | |
8871 | } | |
50b2bdb7 | 8872 | |
08a40648 AM |
8873 | /* On all other arch's, PT_GETREGS == mach+1 and |
8874 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
8875 | |
8876 | default: | |
8877 | switch (note->type) | |
08a40648 AM |
8878 | { |
8879 | case NT_NETBSDCORE_FIRSTMACH+1: | |
8880 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8881 | |
08a40648 AM |
8882 | case NT_NETBSDCORE_FIRSTMACH+3: |
8883 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8884 | |
08a40648 AM |
8885 | default: |
8886 | return TRUE; | |
8887 | } | |
50b2bdb7 AM |
8888 | } |
8889 | /* NOTREACHED */ | |
8890 | } | |
8891 | ||
67cc5033 MK |
8892 | static bfd_boolean |
8893 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
8894 | { | |
8895 | /* Signal number at offset 0x08. */ | |
228e534f | 8896 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
8897 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
8898 | ||
8899 | /* Process ID at offset 0x20. */ | |
228e534f | 8900 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
8901 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
8902 | ||
8903 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 8904 | elf_tdata (abfd)->core->command |
67cc5033 MK |
8905 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
8906 | ||
8907 | return TRUE; | |
8908 | } | |
8909 | ||
8910 | static bfd_boolean | |
8911 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
8912 | { | |
8913 | if (note->type == NT_OPENBSD_PROCINFO) | |
8914 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
8915 | ||
8916 | if (note->type == NT_OPENBSD_REGS) | |
8917 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
8918 | ||
8919 | if (note->type == NT_OPENBSD_FPREGS) | |
8920 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8921 | ||
8922 | if (note->type == NT_OPENBSD_XFPREGS) | |
8923 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8924 | ||
8925 | if (note->type == NT_OPENBSD_AUXV) | |
8926 | { | |
8927 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
8928 | SEC_HAS_CONTENTS); | |
8929 | ||
8930 | if (sect == NULL) | |
8931 | return FALSE; | |
8932 | sect->size = note->descsz; | |
8933 | sect->filepos = note->descpos; | |
8934 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
8935 | ||
8936 | return TRUE; | |
8937 | } | |
8938 | ||
8939 | if (note->type == NT_OPENBSD_WCOOKIE) | |
8940 | { | |
8941 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
8942 | SEC_HAS_CONTENTS); | |
8943 | ||
8944 | if (sect == NULL) | |
8945 | return FALSE; | |
8946 | sect->size = note->descsz; | |
8947 | sect->filepos = note->descpos; | |
8948 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
8949 | ||
8950 | return TRUE; | |
8951 | } | |
8952 | ||
8953 | return TRUE; | |
8954 | } | |
8955 | ||
07c6e936 | 8956 | static bfd_boolean |
d3fd4074 | 8957 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
8958 | { |
8959 | void *ddata = note->descdata; | |
8960 | char buf[100]; | |
8961 | char *name; | |
8962 | asection *sect; | |
f8843e87 AM |
8963 | short sig; |
8964 | unsigned flags; | |
07c6e936 NC |
8965 | |
8966 | /* nto_procfs_status 'pid' field is at offset 0. */ | |
228e534f | 8967 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 8968 | |
f8843e87 AM |
8969 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
8970 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
8971 | ||
8972 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
8973 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
8974 | |
8975 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
8976 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
8977 | { | |
228e534f AM |
8978 | elf_tdata (abfd)->core->signal = sig; |
8979 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 8980 | } |
07c6e936 | 8981 | |
f8843e87 AM |
8982 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
8983 | do not come from signals so we make sure we set the current | |
8984 | thread just in case. */ | |
8985 | if (flags & 0x00000080) | |
228e534f | 8986 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
8987 | |
8988 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 8989 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 8990 | |
a50b1753 | 8991 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
8992 | if (name == NULL) |
8993 | return FALSE; | |
8994 | strcpy (name, buf); | |
8995 | ||
117ed4f8 | 8996 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
8997 | if (sect == NULL) |
8998 | return FALSE; | |
8999 | ||
eea6121a | 9000 | sect->size = note->descsz; |
07c6e936 | 9001 | sect->filepos = note->descpos; |
07c6e936 NC |
9002 | sect->alignment_power = 2; |
9003 | ||
9004 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
9005 | } | |
9006 | ||
9007 | static bfd_boolean | |
d69f560c KW |
9008 | elfcore_grok_nto_regs (bfd *abfd, |
9009 | Elf_Internal_Note *note, | |
d3fd4074 | 9010 | long tid, |
d69f560c | 9011 | char *base) |
07c6e936 NC |
9012 | { |
9013 | char buf[100]; | |
9014 | char *name; | |
9015 | asection *sect; | |
9016 | ||
d69f560c | 9017 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 9018 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 9019 | |
a50b1753 | 9020 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
9021 | if (name == NULL) |
9022 | return FALSE; | |
9023 | strcpy (name, buf); | |
9024 | ||
117ed4f8 | 9025 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
9026 | if (sect == NULL) |
9027 | return FALSE; | |
9028 | ||
eea6121a | 9029 | sect->size = note->descsz; |
07c6e936 | 9030 | sect->filepos = note->descpos; |
07c6e936 NC |
9031 | sect->alignment_power = 2; |
9032 | ||
f8843e87 | 9033 | /* This is the current thread. */ |
228e534f | 9034 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 9035 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
9036 | |
9037 | return TRUE; | |
07c6e936 NC |
9038 | } |
9039 | ||
9040 | #define BFD_QNT_CORE_INFO 7 | |
9041 | #define BFD_QNT_CORE_STATUS 8 | |
9042 | #define BFD_QNT_CORE_GREG 9 | |
9043 | #define BFD_QNT_CORE_FPREG 10 | |
9044 | ||
9045 | static bfd_boolean | |
217aa764 | 9046 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
9047 | { |
9048 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 9049 | tid from the previous call to pass down to the next gregs |
07c6e936 | 9050 | function. */ |
d3fd4074 | 9051 | static long tid = 1; |
07c6e936 NC |
9052 | |
9053 | switch (note->type) | |
9054 | { | |
d69f560c KW |
9055 | case BFD_QNT_CORE_INFO: |
9056 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
9057 | case BFD_QNT_CORE_STATUS: | |
9058 | return elfcore_grok_nto_status (abfd, note, &tid); | |
9059 | case BFD_QNT_CORE_GREG: | |
9060 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
9061 | case BFD_QNT_CORE_FPREG: | |
9062 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
9063 | default: | |
9064 | return TRUE; | |
07c6e936 NC |
9065 | } |
9066 | } | |
9067 | ||
b15fa79e AM |
9068 | static bfd_boolean |
9069 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
9070 | { | |
9071 | char *name; | |
9072 | asection *sect; | |
9073 | size_t len; | |
9074 | ||
9075 | /* Use note name as section name. */ | |
9076 | len = note->namesz; | |
a50b1753 | 9077 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
9078 | if (name == NULL) |
9079 | return FALSE; | |
9080 | memcpy (name, note->namedata, len); | |
9081 | name[len - 1] = '\0'; | |
9082 | ||
9083 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
9084 | if (sect == NULL) | |
9085 | return FALSE; | |
9086 | ||
9087 | sect->size = note->descsz; | |
9088 | sect->filepos = note->descpos; | |
9089 | sect->alignment_power = 1; | |
9090 | ||
9091 | return TRUE; | |
9092 | } | |
9093 | ||
7c76fa91 MS |
9094 | /* Function: elfcore_write_note |
9095 | ||
47d9a591 | 9096 | Inputs: |
a39f3346 | 9097 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
9098 | name of note |
9099 | type of note | |
9100 | data for note | |
9101 | size of data for note | |
9102 | ||
a39f3346 AM |
9103 | Writes note to end of buffer. ELF64 notes are written exactly as |
9104 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
9105 | that they ought to have 8-byte namesz and descsz field, and have | |
9106 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
9107 | ||
7c76fa91 | 9108 | Return: |
a39f3346 | 9109 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
9110 | |
9111 | char * | |
a39f3346 | 9112 | elfcore_write_note (bfd *abfd, |
217aa764 | 9113 | char *buf, |
a39f3346 | 9114 | int *bufsiz, |
217aa764 | 9115 | const char *name, |
a39f3346 | 9116 | int type, |
217aa764 | 9117 | const void *input, |
a39f3346 | 9118 | int size) |
7c76fa91 MS |
9119 | { |
9120 | Elf_External_Note *xnp; | |
d4c88bbb | 9121 | size_t namesz; |
d4c88bbb | 9122 | size_t newspace; |
a39f3346 | 9123 | char *dest; |
7c76fa91 | 9124 | |
d4c88bbb | 9125 | namesz = 0; |
d4c88bbb | 9126 | if (name != NULL) |
a39f3346 | 9127 | namesz = strlen (name) + 1; |
d4c88bbb | 9128 | |
a39f3346 | 9129 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 9130 | |
a50b1753 | 9131 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
9132 | if (buf == NULL) |
9133 | return buf; | |
a39f3346 | 9134 | dest = buf + *bufsiz; |
7c76fa91 MS |
9135 | *bufsiz += newspace; |
9136 | xnp = (Elf_External_Note *) dest; | |
9137 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
9138 | H_PUT_32 (abfd, size, xnp->descsz); | |
9139 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
9140 | dest = xnp->name; |
9141 | if (name != NULL) | |
9142 | { | |
9143 | memcpy (dest, name, namesz); | |
9144 | dest += namesz; | |
a39f3346 | 9145 | while (namesz & 3) |
d4c88bbb AM |
9146 | { |
9147 | *dest++ = '\0'; | |
a39f3346 | 9148 | ++namesz; |
d4c88bbb AM |
9149 | } |
9150 | } | |
9151 | memcpy (dest, input, size); | |
a39f3346 AM |
9152 | dest += size; |
9153 | while (size & 3) | |
9154 | { | |
9155 | *dest++ = '\0'; | |
9156 | ++size; | |
9157 | } | |
9158 | return buf; | |
7c76fa91 MS |
9159 | } |
9160 | ||
7c76fa91 | 9161 | char * |
217aa764 AM |
9162 | elfcore_write_prpsinfo (bfd *abfd, |
9163 | char *buf, | |
9164 | int *bufsiz, | |
9165 | const char *fname, | |
9166 | const char *psargs) | |
7c76fa91 | 9167 | { |
183e98be AM |
9168 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9169 | ||
9170 | if (bed->elf_backend_write_core_note != NULL) | |
9171 | { | |
9172 | char *ret; | |
9173 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9174 | NT_PRPSINFO, fname, psargs); | |
9175 | if (ret != NULL) | |
9176 | return ret; | |
9177 | } | |
7c76fa91 | 9178 | |
1f20dca5 | 9179 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
183e98be AM |
9180 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
9181 | if (bed->s->elfclass == ELFCLASS32) | |
9182 | { | |
9183 | #if defined (HAVE_PSINFO32_T) | |
9184 | psinfo32_t data; | |
9185 | int note_type = NT_PSINFO; | |
9186 | #else | |
9187 | prpsinfo32_t data; | |
9188 | int note_type = NT_PRPSINFO; | |
9189 | #endif | |
9190 | ||
9191 | memset (&data, 0, sizeof (data)); | |
9192 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9193 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9194 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9195 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
9196 | } |
9197 | else | |
9198 | #endif | |
9199 | { | |
7c76fa91 | 9200 | #if defined (HAVE_PSINFO_T) |
183e98be AM |
9201 | psinfo_t data; |
9202 | int note_type = NT_PSINFO; | |
7c76fa91 | 9203 | #else |
183e98be AM |
9204 | prpsinfo_t data; |
9205 | int note_type = NT_PRPSINFO; | |
7c76fa91 MS |
9206 | #endif |
9207 | ||
183e98be AM |
9208 | memset (&data, 0, sizeof (data)); |
9209 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9210 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9211 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9212 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 9213 | } |
7c76fa91 MS |
9214 | #endif /* PSINFO_T or PRPSINFO_T */ |
9215 | ||
1f20dca5 UW |
9216 | free (buf); |
9217 | return NULL; | |
9218 | } | |
9219 | ||
70a38d42 SDJ |
9220 | char * |
9221 | elfcore_write_linux_prpsinfo32 | |
9222 | (bfd *abfd, char *buf, int *bufsiz, | |
9223 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
9224 | { | |
9225 | struct elf_external_linux_prpsinfo32 data; | |
9226 | ||
9227 | memset (&data, 0, sizeof (data)); | |
9228 | LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data); | |
9229 | ||
9230 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
9231 | &data, sizeof (data)); | |
9232 | } | |
9233 | ||
9234 | char * | |
9235 | elfcore_write_linux_prpsinfo64 | |
9236 | (bfd *abfd, char *buf, int *bufsiz, | |
9237 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
9238 | { | |
9239 | struct elf_external_linux_prpsinfo64 data; | |
9240 | ||
9241 | memset (&data, 0, sizeof (data)); | |
9242 | LINUX_PRPSINFO64_SWAP_FIELDS (abfd, prpsinfo, data); | |
9243 | ||
9244 | return elfcore_write_note (abfd, buf, bufsiz, | |
9245 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
9246 | } | |
9247 | ||
7c76fa91 | 9248 | char * |
217aa764 AM |
9249 | elfcore_write_prstatus (bfd *abfd, |
9250 | char *buf, | |
9251 | int *bufsiz, | |
9252 | long pid, | |
9253 | int cursig, | |
9254 | const void *gregs) | |
7c76fa91 | 9255 | { |
183e98be | 9256 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 9257 | |
183e98be AM |
9258 | if (bed->elf_backend_write_core_note != NULL) |
9259 | { | |
9260 | char *ret; | |
9261 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9262 | NT_PRSTATUS, | |
9263 | pid, cursig, gregs); | |
9264 | if (ret != NULL) | |
9265 | return ret; | |
9266 | } | |
9267 | ||
1f20dca5 | 9268 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
9269 | #if defined (HAVE_PRSTATUS32_T) |
9270 | if (bed->s->elfclass == ELFCLASS32) | |
9271 | { | |
9272 | prstatus32_t prstat; | |
9273 | ||
9274 | memset (&prstat, 0, sizeof (prstat)); | |
9275 | prstat.pr_pid = pid; | |
9276 | prstat.pr_cursig = cursig; | |
9277 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9278 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9279 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9280 | } | |
9281 | else | |
9282 | #endif | |
9283 | { | |
9284 | prstatus_t prstat; | |
9285 | ||
9286 | memset (&prstat, 0, sizeof (prstat)); | |
9287 | prstat.pr_pid = pid; | |
9288 | prstat.pr_cursig = cursig; | |
9289 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9290 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9291 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9292 | } | |
7c76fa91 MS |
9293 | #endif /* HAVE_PRSTATUS_T */ |
9294 | ||
1f20dca5 UW |
9295 | free (buf); |
9296 | return NULL; | |
9297 | } | |
9298 | ||
51316059 MS |
9299 | #if defined (HAVE_LWPSTATUS_T) |
9300 | char * | |
217aa764 AM |
9301 | elfcore_write_lwpstatus (bfd *abfd, |
9302 | char *buf, | |
9303 | int *bufsiz, | |
9304 | long pid, | |
9305 | int cursig, | |
9306 | const void *gregs) | |
51316059 MS |
9307 | { |
9308 | lwpstatus_t lwpstat; | |
183e98be | 9309 | const char *note_name = "CORE"; |
51316059 MS |
9310 | |
9311 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
9312 | lwpstat.pr_lwpid = pid >> 16; | |
9313 | lwpstat.pr_cursig = cursig; | |
9314 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
9315 | memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); | |
9316 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
9317 | #if !defined(gregs) | |
9318 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
9319 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
9320 | #else | |
9321 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
9322 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
9323 | #endif | |
9324 | #endif | |
47d9a591 | 9325 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
9326 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
9327 | } | |
9328 | #endif /* HAVE_LWPSTATUS_T */ | |
9329 | ||
7c76fa91 MS |
9330 | #if defined (HAVE_PSTATUS_T) |
9331 | char * | |
217aa764 AM |
9332 | elfcore_write_pstatus (bfd *abfd, |
9333 | char *buf, | |
9334 | int *bufsiz, | |
9335 | long pid, | |
6c10990d NC |
9336 | int cursig ATTRIBUTE_UNUSED, |
9337 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 9338 | { |
183e98be AM |
9339 | const char *note_name = "CORE"; |
9340 | #if defined (HAVE_PSTATUS32_T) | |
9341 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 9342 | |
183e98be AM |
9343 | if (bed->s->elfclass == ELFCLASS32) |
9344 | { | |
9345 | pstatus32_t pstat; | |
9346 | ||
9347 | memset (&pstat, 0, sizeof (pstat)); | |
9348 | pstat.pr_pid = pid & 0xffff; | |
9349 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9350 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9351 | return buf; | |
9352 | } | |
9353 | else | |
9354 | #endif | |
9355 | { | |
9356 | pstatus_t pstat; | |
9357 | ||
9358 | memset (&pstat, 0, sizeof (pstat)); | |
9359 | pstat.pr_pid = pid & 0xffff; | |
9360 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9361 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9362 | return buf; | |
9363 | } | |
7c76fa91 MS |
9364 | } |
9365 | #endif /* HAVE_PSTATUS_T */ | |
9366 | ||
9367 | char * | |
217aa764 AM |
9368 | elfcore_write_prfpreg (bfd *abfd, |
9369 | char *buf, | |
9370 | int *bufsiz, | |
9371 | const void *fpregs, | |
9372 | int size) | |
7c76fa91 | 9373 | { |
183e98be | 9374 | const char *note_name = "CORE"; |
47d9a591 | 9375 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9376 | note_name, NT_FPREGSET, fpregs, size); |
9377 | } | |
9378 | ||
9379 | char * | |
217aa764 AM |
9380 | elfcore_write_prxfpreg (bfd *abfd, |
9381 | char *buf, | |
9382 | int *bufsiz, | |
9383 | const void *xfpregs, | |
9384 | int size) | |
7c76fa91 MS |
9385 | { |
9386 | char *note_name = "LINUX"; | |
47d9a591 | 9387 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9388 | note_name, NT_PRXFPREG, xfpregs, size); |
9389 | } | |
9390 | ||
4339cae0 L |
9391 | char * |
9392 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
9393 | const void *xfpregs, int size) | |
9394 | { | |
9395 | char *note_name = "LINUX"; | |
9396 | return elfcore_write_note (abfd, buf, bufsiz, | |
9397 | note_name, NT_X86_XSTATE, xfpregs, size); | |
9398 | } | |
9399 | ||
97753bd5 AM |
9400 | char * |
9401 | elfcore_write_ppc_vmx (bfd *abfd, | |
9402 | char *buf, | |
9403 | int *bufsiz, | |
9404 | const void *ppc_vmx, | |
9405 | int size) | |
9406 | { | |
9407 | char *note_name = "LINUX"; | |
9408 | return elfcore_write_note (abfd, buf, bufsiz, | |
9409 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
9410 | } | |
9411 | ||
89eeb0bc LM |
9412 | char * |
9413 | elfcore_write_ppc_vsx (bfd *abfd, | |
9414 | char *buf, | |
9415 | int *bufsiz, | |
9416 | const void *ppc_vsx, | |
9417 | int size) | |
9418 | { | |
9419 | char *note_name = "LINUX"; | |
9420 | return elfcore_write_note (abfd, buf, bufsiz, | |
9421 | note_name, NT_PPC_VSX, ppc_vsx, size); | |
9422 | } | |
9423 | ||
0675e188 UW |
9424 | static char * |
9425 | elfcore_write_s390_high_gprs (bfd *abfd, | |
9426 | char *buf, | |
9427 | int *bufsiz, | |
9428 | const void *s390_high_gprs, | |
9429 | int size) | |
9430 | { | |
9431 | char *note_name = "LINUX"; | |
9432 | return elfcore_write_note (abfd, buf, bufsiz, | |
9433 | note_name, NT_S390_HIGH_GPRS, | |
9434 | s390_high_gprs, size); | |
9435 | } | |
9436 | ||
d7eeb400 MS |
9437 | char * |
9438 | elfcore_write_s390_timer (bfd *abfd, | |
9439 | char *buf, | |
9440 | int *bufsiz, | |
9441 | const void *s390_timer, | |
9442 | int size) | |
9443 | { | |
9444 | char *note_name = "LINUX"; | |
9445 | return elfcore_write_note (abfd, buf, bufsiz, | |
9446 | note_name, NT_S390_TIMER, s390_timer, size); | |
9447 | } | |
9448 | ||
9449 | char * | |
9450 | elfcore_write_s390_todcmp (bfd *abfd, | |
9451 | char *buf, | |
9452 | int *bufsiz, | |
9453 | const void *s390_todcmp, | |
9454 | int size) | |
9455 | { | |
9456 | char *note_name = "LINUX"; | |
9457 | return elfcore_write_note (abfd, buf, bufsiz, | |
9458 | note_name, NT_S390_TODCMP, s390_todcmp, size); | |
9459 | } | |
9460 | ||
9461 | char * | |
9462 | elfcore_write_s390_todpreg (bfd *abfd, | |
9463 | char *buf, | |
9464 | int *bufsiz, | |
9465 | const void *s390_todpreg, | |
9466 | int size) | |
9467 | { | |
9468 | char *note_name = "LINUX"; | |
9469 | return elfcore_write_note (abfd, buf, bufsiz, | |
9470 | note_name, NT_S390_TODPREG, s390_todpreg, size); | |
9471 | } | |
9472 | ||
9473 | char * | |
9474 | elfcore_write_s390_ctrs (bfd *abfd, | |
9475 | char *buf, | |
9476 | int *bufsiz, | |
9477 | const void *s390_ctrs, | |
9478 | int size) | |
9479 | { | |
9480 | char *note_name = "LINUX"; | |
9481 | return elfcore_write_note (abfd, buf, bufsiz, | |
9482 | note_name, NT_S390_CTRS, s390_ctrs, size); | |
9483 | } | |
9484 | ||
9485 | char * | |
9486 | elfcore_write_s390_prefix (bfd *abfd, | |
9487 | char *buf, | |
9488 | int *bufsiz, | |
9489 | const void *s390_prefix, | |
9490 | int size) | |
9491 | { | |
9492 | char *note_name = "LINUX"; | |
9493 | return elfcore_write_note (abfd, buf, bufsiz, | |
9494 | note_name, NT_S390_PREFIX, s390_prefix, size); | |
9495 | } | |
9496 | ||
355b81d9 UW |
9497 | char * |
9498 | elfcore_write_s390_last_break (bfd *abfd, | |
9499 | char *buf, | |
9500 | int *bufsiz, | |
9501 | const void *s390_last_break, | |
9502 | int size) | |
9503 | { | |
9504 | char *note_name = "LINUX"; | |
9505 | return elfcore_write_note (abfd, buf, bufsiz, | |
9506 | note_name, NT_S390_LAST_BREAK, | |
9507 | s390_last_break, size); | |
9508 | } | |
9509 | ||
9510 | char * | |
9511 | elfcore_write_s390_system_call (bfd *abfd, | |
9512 | char *buf, | |
9513 | int *bufsiz, | |
9514 | const void *s390_system_call, | |
9515 | int size) | |
9516 | { | |
9517 | char *note_name = "LINUX"; | |
9518 | return elfcore_write_note (abfd, buf, bufsiz, | |
9519 | note_name, NT_S390_SYSTEM_CALL, | |
9520 | s390_system_call, size); | |
9521 | } | |
9522 | ||
abb3f6cc NC |
9523 | char * |
9524 | elfcore_write_s390_tdb (bfd *abfd, | |
9525 | char *buf, | |
9526 | int *bufsiz, | |
9527 | const void *s390_tdb, | |
9528 | int size) | |
9529 | { | |
9530 | char *note_name = "LINUX"; | |
9531 | return elfcore_write_note (abfd, buf, bufsiz, | |
9532 | note_name, NT_S390_TDB, s390_tdb, size); | |
9533 | } | |
9534 | ||
faa9a424 UW |
9535 | char * |
9536 | elfcore_write_arm_vfp (bfd *abfd, | |
9537 | char *buf, | |
9538 | int *bufsiz, | |
9539 | const void *arm_vfp, | |
9540 | int size) | |
9541 | { | |
9542 | char *note_name = "LINUX"; | |
9543 | return elfcore_write_note (abfd, buf, bufsiz, | |
9544 | note_name, NT_ARM_VFP, arm_vfp, size); | |
9545 | } | |
9546 | ||
652451f8 YZ |
9547 | char * |
9548 | elfcore_write_aarch_tls (bfd *abfd, | |
9549 | char *buf, | |
9550 | int *bufsiz, | |
9551 | const void *aarch_tls, | |
9552 | int size) | |
9553 | { | |
9554 | char *note_name = "LINUX"; | |
9555 | return elfcore_write_note (abfd, buf, bufsiz, | |
9556 | note_name, NT_ARM_TLS, aarch_tls, size); | |
9557 | } | |
9558 | ||
9559 | char * | |
9560 | elfcore_write_aarch_hw_break (bfd *abfd, | |
9561 | char *buf, | |
9562 | int *bufsiz, | |
9563 | const void *aarch_hw_break, | |
9564 | int size) | |
9565 | { | |
9566 | char *note_name = "LINUX"; | |
9567 | return elfcore_write_note (abfd, buf, bufsiz, | |
9568 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
9569 | } | |
9570 | ||
9571 | char * | |
9572 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
9573 | char *buf, | |
9574 | int *bufsiz, | |
9575 | const void *aarch_hw_watch, | |
9576 | int size) | |
9577 | { | |
9578 | char *note_name = "LINUX"; | |
9579 | return elfcore_write_note (abfd, buf, bufsiz, | |
9580 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
9581 | } | |
9582 | ||
bb864ac1 CES |
9583 | char * |
9584 | elfcore_write_register_note (bfd *abfd, | |
9585 | char *buf, | |
9586 | int *bufsiz, | |
9587 | const char *section, | |
9588 | const void *data, | |
9589 | int size) | |
9590 | { | |
9591 | if (strcmp (section, ".reg2") == 0) | |
9592 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
9593 | if (strcmp (section, ".reg-xfp") == 0) | |
9594 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
9595 | if (strcmp (section, ".reg-xstate") == 0) |
9596 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9597 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
9598 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
9599 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
9600 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
9601 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
9602 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
9603 | if (strcmp (section, ".reg-s390-timer") == 0) |
9604 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
9605 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
9606 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
9607 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
9608 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
9609 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
9610 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
9611 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
9612 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
9613 | if (strcmp (section, ".reg-s390-last-break") == 0) |
9614 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
9615 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
9616 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
9617 | if (strcmp (section, ".reg-s390-tdb") == 0) |
9618 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
9619 | if (strcmp (section, ".reg-arm-vfp") == 0) |
9620 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
9621 | if (strcmp (section, ".reg-aarch-tls") == 0) |
9622 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
9623 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
9624 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
9625 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
9626 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9627 | return NULL; |
9628 | } | |
9629 | ||
b34976b6 | 9630 | static bfd_boolean |
718175fa | 9631 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset) |
252b5132 | 9632 | { |
c044fabd | 9633 | char *p; |
252b5132 | 9634 | |
252b5132 RH |
9635 | p = buf; |
9636 | while (p < buf + size) | |
9637 | { | |
c044fabd KH |
9638 | /* FIXME: bad alignment assumption. */ |
9639 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
9640 | Elf_Internal_Note in; |
9641 | ||
baea7ef1 AM |
9642 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
9643 | return FALSE; | |
9644 | ||
dc810e39 | 9645 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 9646 | |
dc810e39 | 9647 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 9648 | in.namedata = xnp->name; |
baea7ef1 AM |
9649 | if (in.namesz > buf - in.namedata + size) |
9650 | return FALSE; | |
252b5132 | 9651 | |
dc810e39 | 9652 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
9653 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
9654 | in.descpos = offset + (in.descdata - buf); | |
baea7ef1 AM |
9655 | if (in.descsz != 0 |
9656 | && (in.descdata >= buf + size | |
9657 | || in.descsz > buf - in.descdata + size)) | |
9658 | return FALSE; | |
252b5132 | 9659 | |
718175fa JK |
9660 | switch (bfd_get_format (abfd)) |
9661 | { | |
9662 | default: | |
9663 | return TRUE; | |
9664 | ||
9665 | case bfd_core: | |
9666 | if (CONST_STRNEQ (in.namedata, "NetBSD-CORE")) | |
9667 | { | |
9668 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |
9669 | return FALSE; | |
9670 | } | |
67cc5033 MK |
9671 | else if (CONST_STRNEQ (in.namedata, "OpenBSD")) |
9672 | { | |
9673 | if (! elfcore_grok_openbsd_note (abfd, &in)) | |
9674 | return FALSE; | |
9675 | } | |
718175fa JK |
9676 | else if (CONST_STRNEQ (in.namedata, "QNX")) |
9677 | { | |
9678 | if (! elfcore_grok_nto_note (abfd, &in)) | |
9679 | return FALSE; | |
9680 | } | |
b15fa79e AM |
9681 | else if (CONST_STRNEQ (in.namedata, "SPU/")) |
9682 | { | |
9683 | if (! elfcore_grok_spu_note (abfd, &in)) | |
9684 | return FALSE; | |
9685 | } | |
718175fa JK |
9686 | else |
9687 | { | |
9688 | if (! elfcore_grok_note (abfd, &in)) | |
9689 | return FALSE; | |
9690 | } | |
9691 | break; | |
9692 | ||
9693 | case bfd_object: | |
9694 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
9695 | { | |
9696 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
9697 | return FALSE; | |
9698 | } | |
e21e5835 NC |
9699 | else if (in.namesz == sizeof "stapsdt" |
9700 | && strcmp (in.namedata, "stapsdt") == 0) | |
9701 | { | |
9702 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
9703 | return FALSE; | |
9704 | } | |
718175fa | 9705 | break; |
08a40648 | 9706 | } |
252b5132 RH |
9707 | |
9708 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
9709 | } | |
9710 | ||
718175fa JK |
9711 | return TRUE; |
9712 | } | |
9713 | ||
9714 | static bfd_boolean | |
9715 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) | |
9716 | { | |
9717 | char *buf; | |
9718 | ||
9719 | if (size <= 0) | |
9720 | return TRUE; | |
9721 | ||
9722 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
9723 | return FALSE; | |
9724 | ||
a50b1753 | 9725 | buf = (char *) bfd_malloc (size); |
718175fa JK |
9726 | if (buf == NULL) |
9727 | return FALSE; | |
9728 | ||
9729 | if (bfd_bread (buf, size, abfd) != size | |
9730 | || !elf_parse_notes (abfd, buf, size, offset)) | |
9731 | { | |
9732 | free (buf); | |
9733 | return FALSE; | |
9734 | } | |
9735 | ||
252b5132 | 9736 | free (buf); |
b34976b6 | 9737 | return TRUE; |
252b5132 | 9738 | } |
98d8431c JB |
9739 | \f |
9740 | /* Providing external access to the ELF program header table. */ | |
9741 | ||
9742 | /* Return an upper bound on the number of bytes required to store a | |
9743 | copy of ABFD's program header table entries. Return -1 if an error | |
9744 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9745 | |
98d8431c | 9746 | long |
217aa764 | 9747 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
9748 | { |
9749 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9750 | { | |
9751 | bfd_set_error (bfd_error_wrong_format); | |
9752 | return -1; | |
9753 | } | |
9754 | ||
936e320b | 9755 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
9756 | } |
9757 | ||
98d8431c JB |
9758 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
9759 | will be stored as an array of Elf_Internal_Phdr structures, as | |
9760 | defined in include/elf/internal.h. To find out how large the | |
9761 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
9762 | ||
9763 | Return the number of program header table entries read, or -1 if an | |
9764 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9765 | |
98d8431c | 9766 | int |
217aa764 | 9767 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
9768 | { |
9769 | int num_phdrs; | |
9770 | ||
9771 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9772 | { | |
9773 | bfd_set_error (bfd_error_wrong_format); | |
9774 | return -1; | |
9775 | } | |
9776 | ||
9777 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 9778 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
9779 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
9780 | ||
9781 | return num_phdrs; | |
9782 | } | |
ae4221d7 | 9783 | |
db6751f2 | 9784 | enum elf_reloc_type_class |
7e612e98 AM |
9785 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
9786 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
9787 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
9788 | { |
9789 | return reloc_class_normal; | |
9790 | } | |
f8df10f4 | 9791 | |
47d9a591 | 9792 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
9793 | relocation against a local symbol. */ |
9794 | ||
9795 | bfd_vma | |
217aa764 AM |
9796 | _bfd_elf_rela_local_sym (bfd *abfd, |
9797 | Elf_Internal_Sym *sym, | |
8517fae7 | 9798 | asection **psec, |
217aa764 | 9799 | Elf_Internal_Rela *rel) |
f8df10f4 | 9800 | { |
8517fae7 | 9801 | asection *sec = *psec; |
f8df10f4 JJ |
9802 | bfd_vma relocation; |
9803 | ||
9804 | relocation = (sec->output_section->vma | |
9805 | + sec->output_offset | |
9806 | + sym->st_value); | |
9807 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 9808 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 9809 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 9810 | { |
f8df10f4 | 9811 | rel->r_addend = |
8517fae7 | 9812 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 9813 | elf_section_data (sec)->sec_info, |
753731ee AM |
9814 | sym->st_value + rel->r_addend); |
9815 | if (sec != *psec) | |
9816 | { | |
9817 | /* If we have changed the section, and our original section is | |
9818 | marked with SEC_EXCLUDE, it means that the original | |
9819 | SEC_MERGE section has been completely subsumed in some | |
9820 | other SEC_MERGE section. In this case, we need to leave | |
9821 | some info around for --emit-relocs. */ | |
9822 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
9823 | sec->kept_section = *psec; | |
9824 | sec = *psec; | |
9825 | } | |
8517fae7 AM |
9826 | rel->r_addend -= relocation; |
9827 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
9828 | } |
9829 | return relocation; | |
9830 | } | |
c629eae0 JJ |
9831 | |
9832 | bfd_vma | |
217aa764 AM |
9833 | _bfd_elf_rel_local_sym (bfd *abfd, |
9834 | Elf_Internal_Sym *sym, | |
9835 | asection **psec, | |
9836 | bfd_vma addend) | |
47d9a591 | 9837 | { |
c629eae0 JJ |
9838 | asection *sec = *psec; |
9839 | ||
dbaa2011 | 9840 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
9841 | return sym->st_value + addend; |
9842 | ||
9843 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 9844 | elf_section_data (sec)->sec_info, |
753731ee | 9845 | sym->st_value + addend); |
c629eae0 JJ |
9846 | } |
9847 | ||
9848 | bfd_vma | |
217aa764 | 9849 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 9850 | struct bfd_link_info *info, |
217aa764 AM |
9851 | asection *sec, |
9852 | bfd_vma offset) | |
c629eae0 | 9853 | { |
68bfbfcc | 9854 | switch (sec->sec_info_type) |
65765700 | 9855 | { |
dbaa2011 | 9856 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
9857 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
9858 | offset); | |
dbaa2011 | 9859 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 9860 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
65765700 | 9861 | default: |
310fd250 L |
9862 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
9863 | { | |
9864 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9865 | bfd_size_type address_size = bed->s->arch_size / 8; | |
9866 | offset = sec->size - offset - address_size; | |
9867 | } | |
65765700 JJ |
9868 | return offset; |
9869 | } | |
c629eae0 | 9870 | } |
3333a7c3 RM |
9871 | \f |
9872 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
9873 | reconstruct an ELF file by reading the segments out of remote memory | |
9874 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
9875 | points to. If not null, *LOADBASEP is filled in with the difference | |
9876 | between the VMAs from which the segments were read, and the VMAs the | |
9877 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
9878 | ||
9879 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
9880 | remote memory at target address VMA into the local buffer at MYADDR; it | |
9881 | should return zero on success or an `errno' code on failure. TEMPL must | |
9882 | be a BFD for an ELF target with the word size and byte order found in | |
9883 | the remote memory. */ | |
9884 | ||
9885 | bfd * | |
217aa764 AM |
9886 | bfd_elf_bfd_from_remote_memory |
9887 | (bfd *templ, | |
9888 | bfd_vma ehdr_vma, | |
9889 | bfd_vma *loadbasep, | |
fe78531d | 9890 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
9891 | { |
9892 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
9893 | (templ, ehdr_vma, loadbasep, target_read_memory); | |
9894 | } | |
4c45e5c9 JJ |
9895 | \f |
9896 | long | |
c9727e01 AM |
9897 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
9898 | long symcount ATTRIBUTE_UNUSED, | |
9899 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 9900 | long dynsymcount, |
c9727e01 AM |
9901 | asymbol **dynsyms, |
9902 | asymbol **ret) | |
4c45e5c9 JJ |
9903 | { |
9904 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9905 | asection *relplt; | |
9906 | asymbol *s; | |
9907 | const char *relplt_name; | |
9908 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
9909 | arelent *p; | |
9910 | long count, i, n; | |
9911 | size_t size; | |
9912 | Elf_Internal_Shdr *hdr; | |
9913 | char *names; | |
9914 | asection *plt; | |
9915 | ||
8615f3f2 AM |
9916 | *ret = NULL; |
9917 | ||
90e3cdf2 JJ |
9918 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
9919 | return 0; | |
9920 | ||
8615f3f2 AM |
9921 | if (dynsymcount <= 0) |
9922 | return 0; | |
9923 | ||
4c45e5c9 JJ |
9924 | if (!bed->plt_sym_val) |
9925 | return 0; | |
9926 | ||
9927 | relplt_name = bed->relplt_name; | |
9928 | if (relplt_name == NULL) | |
d35fd659 | 9929 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
9930 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
9931 | if (relplt == NULL) | |
9932 | return 0; | |
9933 | ||
9934 | hdr = &elf_section_data (relplt)->this_hdr; | |
9935 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
9936 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
9937 | return 0; | |
9938 | ||
9939 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
9940 | if (plt == NULL) | |
9941 | return 0; | |
9942 | ||
9943 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 9944 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
9945 | return -1; |
9946 | ||
eea6121a | 9947 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
9948 | size = count * sizeof (asymbol); |
9949 | p = relplt->relocation; | |
cb53bf42 | 9950 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
9951 | { |
9952 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
9953 | if (p->addend != 0) | |
9954 | { | |
9955 | #ifdef BFD64 | |
9956 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
9957 | #else | |
9958 | size += sizeof ("+0x") - 1 + 8; | |
9959 | #endif | |
9960 | } | |
9961 | } | |
4c45e5c9 | 9962 | |
a50b1753 | 9963 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
9964 | if (s == NULL) |
9965 | return -1; | |
9966 | ||
9967 | names = (char *) (s + count); | |
9968 | p = relplt->relocation; | |
9969 | n = 0; | |
cb53bf42 | 9970 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
9971 | { |
9972 | size_t len; | |
9973 | bfd_vma addr; | |
9974 | ||
9975 | addr = bed->plt_sym_val (i, plt, p); | |
9976 | if (addr == (bfd_vma) -1) | |
9977 | continue; | |
9978 | ||
9979 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
9980 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
9981 | we are defining a symbol, ensure one of them is set. */ | |
9982 | if ((s->flags & BSF_LOCAL) == 0) | |
9983 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 9984 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
9985 | s->section = plt; |
9986 | s->value = addr - plt->vma; | |
9987 | s->name = names; | |
8f39ba8e | 9988 | s->udata.p = NULL; |
4c45e5c9 JJ |
9989 | len = strlen ((*p->sym_ptr_ptr)->name); |
9990 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
9991 | names += len; | |
041de40d AM |
9992 | if (p->addend != 0) |
9993 | { | |
1d770845 | 9994 | char buf[30], *a; |
d324f6d6 | 9995 | |
041de40d AM |
9996 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
9997 | names += sizeof ("+0x") - 1; | |
1d770845 L |
9998 | bfd_sprintf_vma (abfd, buf, p->addend); |
9999 | for (a = buf; *a == '0'; ++a) | |
10000 | ; | |
10001 | len = strlen (a); | |
10002 | memcpy (names, a, len); | |
10003 | names += len; | |
041de40d | 10004 | } |
4c45e5c9 JJ |
10005 | memcpy (names, "@plt", sizeof ("@plt")); |
10006 | names += sizeof ("@plt"); | |
8f39ba8e | 10007 | ++s, ++n; |
4c45e5c9 JJ |
10008 | } |
10009 | ||
10010 | return n; | |
10011 | } | |
3d7f7666 | 10012 | |
3b22753a L |
10013 | /* It is only used by x86-64 so far. */ |
10014 | asection _bfd_elf_large_com_section | |
10015 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, | |
f592407e | 10016 | SEC_IS_COMMON, NULL, "LARGE_COMMON", 0); |
ecca9871 | 10017 | |
d1036acb L |
10018 | void |
10019 | _bfd_elf_set_osabi (bfd * abfd, | |
10020 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
10021 | { | |
10022 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
10023 | ||
10024 | i_ehdrp = elf_elfheader (abfd); | |
10025 | ||
10026 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
10027 | |
10028 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 10029 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 10030 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 10031 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 10032 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 10033 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 10034 | } |
fcb93ecf PB |
10035 | |
10036 | ||
10037 | /* Return TRUE for ELF symbol types that represent functions. | |
10038 | This is the default version of this function, which is sufficient for | |
d8045f23 | 10039 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
10040 | |
10041 | bfd_boolean | |
10042 | _bfd_elf_is_function_type (unsigned int type) | |
10043 | { | |
d8045f23 NC |
10044 | return (type == STT_FUNC |
10045 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 10046 | } |
9f296da3 | 10047 | |
aef36ac1 AM |
10048 | /* If the ELF symbol SYM might be a function in SEC, return the |
10049 | function size and set *CODE_OFF to the function's entry point, | |
10050 | otherwise return zero. */ | |
9f296da3 | 10051 | |
aef36ac1 AM |
10052 | bfd_size_type |
10053 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
10054 | bfd_vma *code_off) | |
9f296da3 | 10055 | { |
aef36ac1 AM |
10056 | bfd_size_type size; |
10057 | ||
ff9e0f5b | 10058 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
10059 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
10060 | || sym->section != sec) | |
10061 | return 0; | |
ff9e0f5b | 10062 | |
ff9e0f5b | 10063 | *code_off = sym->value; |
aef36ac1 AM |
10064 | size = 0; |
10065 | if (!(sym->flags & BSF_SYNTHETIC)) | |
10066 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
10067 | if (size == 0) | |
10068 | size = 1; | |
10069 | return size; | |
9f296da3 | 10070 | } |