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Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 AC |
2 | |
3 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, | |
9f296da3 | 4 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
72a80a16 | 5 | Free Software Foundation, Inc. |
252b5132 | 6 | |
5e8d7549 | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
5e8d7549 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 12 | (at your option) any later version. |
252b5132 | 13 | |
5e8d7549 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
5e8d7549 | 19 | You should have received a copy of the GNU General Public License |
b34976b6 | 20 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
23 | ||
252b5132 | 24 | |
1b74d094 BW |
25 | /* |
26 | SECTION | |
252b5132 RH |
27 | ELF backends |
28 | ||
29 | BFD support for ELF formats is being worked on. | |
30 | Currently, the best supported back ends are for sparc and i386 | |
31 | (running svr4 or Solaris 2). | |
32 | ||
33 | Documentation of the internals of the support code still needs | |
34 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 35 | haven't bothered yet. */ |
252b5132 | 36 | |
7ee38065 MS |
37 | /* For sparc64-cross-sparc32. */ |
38 | #define _SYSCALL32 | |
252b5132 | 39 | #include "sysdep.h" |
3db64b00 | 40 | #include "bfd.h" |
252b5132 RH |
41 | #include "bfdlink.h" |
42 | #include "libbfd.h" | |
43 | #define ARCH_SIZE 0 | |
44 | #include "elf-bfd.h" | |
e0e8c97f | 45 | #include "libiberty.h" |
ff59fc36 | 46 | #include "safe-ctype.h" |
252b5132 | 47 | |
8bc7f138 L |
48 | #ifdef CORE_HEADER |
49 | #include CORE_HEADER | |
50 | #endif | |
51 | ||
217aa764 | 52 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 53 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 AM |
54 | static bfd_boolean prep_headers (bfd *); |
55 | static bfd_boolean swap_out_syms (bfd *, struct bfd_strtab_hash **, int) ; | |
718175fa JK |
56 | static bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type) ; |
57 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, | |
58 | file_ptr offset); | |
50b2bdb7 | 59 | |
252b5132 RH |
60 | /* Swap version information in and out. The version information is |
61 | currently size independent. If that ever changes, this code will | |
62 | need to move into elfcode.h. */ | |
63 | ||
64 | /* Swap in a Verdef structure. */ | |
65 | ||
66 | void | |
217aa764 AM |
67 | _bfd_elf_swap_verdef_in (bfd *abfd, |
68 | const Elf_External_Verdef *src, | |
69 | Elf_Internal_Verdef *dst) | |
252b5132 | 70 | { |
dc810e39 AM |
71 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
72 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
73 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
74 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
75 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
76 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
77 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
78 | } |
79 | ||
80 | /* Swap out a Verdef structure. */ | |
81 | ||
82 | void | |
217aa764 AM |
83 | _bfd_elf_swap_verdef_out (bfd *abfd, |
84 | const Elf_Internal_Verdef *src, | |
85 | Elf_External_Verdef *dst) | |
252b5132 | 86 | { |
dc810e39 AM |
87 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
88 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
89 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
90 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
91 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
92 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
93 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
94 | } |
95 | ||
96 | /* Swap in a Verdaux structure. */ | |
97 | ||
98 | void | |
217aa764 AM |
99 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
100 | const Elf_External_Verdaux *src, | |
101 | Elf_Internal_Verdaux *dst) | |
252b5132 | 102 | { |
dc810e39 AM |
103 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
104 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
105 | } |
106 | ||
107 | /* Swap out a Verdaux structure. */ | |
108 | ||
109 | void | |
217aa764 AM |
110 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
111 | const Elf_Internal_Verdaux *src, | |
112 | Elf_External_Verdaux *dst) | |
252b5132 | 113 | { |
dc810e39 AM |
114 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
115 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
116 | } |
117 | ||
118 | /* Swap in a Verneed structure. */ | |
119 | ||
120 | void | |
217aa764 AM |
121 | _bfd_elf_swap_verneed_in (bfd *abfd, |
122 | const Elf_External_Verneed *src, | |
123 | Elf_Internal_Verneed *dst) | |
252b5132 | 124 | { |
dc810e39 AM |
125 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
126 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
127 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
128 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
129 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
130 | } |
131 | ||
132 | /* Swap out a Verneed structure. */ | |
133 | ||
134 | void | |
217aa764 AM |
135 | _bfd_elf_swap_verneed_out (bfd *abfd, |
136 | const Elf_Internal_Verneed *src, | |
137 | Elf_External_Verneed *dst) | |
252b5132 | 138 | { |
dc810e39 AM |
139 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
140 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
141 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
142 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
143 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
144 | } |
145 | ||
146 | /* Swap in a Vernaux structure. */ | |
147 | ||
148 | void | |
217aa764 AM |
149 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
150 | const Elf_External_Vernaux *src, | |
151 | Elf_Internal_Vernaux *dst) | |
252b5132 | 152 | { |
dc810e39 AM |
153 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
154 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
155 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
156 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
157 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
158 | } |
159 | ||
160 | /* Swap out a Vernaux structure. */ | |
161 | ||
162 | void | |
217aa764 AM |
163 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
164 | const Elf_Internal_Vernaux *src, | |
165 | Elf_External_Vernaux *dst) | |
252b5132 | 166 | { |
dc810e39 AM |
167 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
168 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
169 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
170 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
171 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
172 | } |
173 | ||
174 | /* Swap in a Versym structure. */ | |
175 | ||
176 | void | |
217aa764 AM |
177 | _bfd_elf_swap_versym_in (bfd *abfd, |
178 | const Elf_External_Versym *src, | |
179 | Elf_Internal_Versym *dst) | |
252b5132 | 180 | { |
dc810e39 | 181 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
182 | } |
183 | ||
184 | /* Swap out a Versym structure. */ | |
185 | ||
186 | void | |
217aa764 AM |
187 | _bfd_elf_swap_versym_out (bfd *abfd, |
188 | const Elf_Internal_Versym *src, | |
189 | Elf_External_Versym *dst) | |
252b5132 | 190 | { |
dc810e39 | 191 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
192 | } |
193 | ||
194 | /* Standard ELF hash function. Do not change this function; you will | |
195 | cause invalid hash tables to be generated. */ | |
3a99b017 | 196 | |
252b5132 | 197 | unsigned long |
217aa764 | 198 | bfd_elf_hash (const char *namearg) |
252b5132 | 199 | { |
3a99b017 | 200 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
201 | unsigned long h = 0; |
202 | unsigned long g; | |
203 | int ch; | |
204 | ||
205 | while ((ch = *name++) != '\0') | |
206 | { | |
207 | h = (h << 4) + ch; | |
208 | if ((g = (h & 0xf0000000)) != 0) | |
209 | { | |
210 | h ^= g >> 24; | |
211 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
212 | this case and on some machines one insn instead of two. */ | |
213 | h ^= g; | |
214 | } | |
215 | } | |
32dfa85d | 216 | return h & 0xffffffff; |
252b5132 RH |
217 | } |
218 | ||
fdc90cb4 JJ |
219 | /* DT_GNU_HASH hash function. Do not change this function; you will |
220 | cause invalid hash tables to be generated. */ | |
221 | ||
222 | unsigned long | |
223 | bfd_elf_gnu_hash (const char *namearg) | |
224 | { | |
225 | const unsigned char *name = (const unsigned char *) namearg; | |
226 | unsigned long h = 5381; | |
227 | unsigned char ch; | |
228 | ||
229 | while ((ch = *name++) != '\0') | |
230 | h = (h << 5) + h + ch; | |
231 | return h & 0xffffffff; | |
232 | } | |
233 | ||
0c8d6e5c AM |
234 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
235 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 236 | bfd_boolean |
0c8d6e5c | 237 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 238 | size_t object_size, |
4dfe6ac6 | 239 | enum elf_target_id object_id) |
252b5132 | 240 | { |
0ffa91dd NC |
241 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
242 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
243 | if (abfd->tdata.any == NULL) | |
244 | return FALSE; | |
252b5132 | 245 | |
0ffa91dd NC |
246 | elf_object_id (abfd) = object_id; |
247 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
b34976b6 | 248 | return TRUE; |
252b5132 RH |
249 | } |
250 | ||
0ffa91dd NC |
251 | |
252 | bfd_boolean | |
ae95ffa6 | 253 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 254 | { |
ae95ffa6 | 255 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 256 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 257 | bed->target_id); |
0ffa91dd NC |
258 | } |
259 | ||
b34976b6 | 260 | bfd_boolean |
217aa764 | 261 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 262 | { |
c044fabd | 263 | /* I think this can be done just like an object file. */ |
ae95ffa6 | 264 | return abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd); |
252b5132 RH |
265 | } |
266 | ||
72a80a16 | 267 | static char * |
217aa764 | 268 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
269 | { |
270 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 271 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
272 | file_ptr offset; |
273 | bfd_size_type shstrtabsize; | |
252b5132 RH |
274 | |
275 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
276 | if (i_shdrp == 0 |
277 | || shindex >= elf_numsections (abfd) | |
278 | || i_shdrp[shindex] == 0) | |
f075ee0c | 279 | return NULL; |
252b5132 | 280 | |
f075ee0c | 281 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
282 | if (shstrtab == NULL) |
283 | { | |
c044fabd | 284 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
285 | offset = i_shdrp[shindex]->sh_offset; |
286 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
287 | |
288 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
289 | in case the string table is not terminated. */ | |
3471d59d | 290 | if (shstrtabsize + 1 <= 1 |
a50b1753 | 291 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL |
c6c60d09 JJ |
292 | || bfd_seek (abfd, offset, SEEK_SET) != 0) |
293 | shstrtab = NULL; | |
294 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
295 | { | |
296 | if (bfd_get_error () != bfd_error_system_call) | |
297 | bfd_set_error (bfd_error_file_truncated); | |
298 | shstrtab = NULL; | |
3471d59d CC |
299 | /* Once we've failed to read it, make sure we don't keep |
300 | trying. Otherwise, we'll keep allocating space for | |
301 | the string table over and over. */ | |
302 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
303 | } |
304 | else | |
305 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 306 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 307 | } |
f075ee0c | 308 | return (char *) shstrtab; |
252b5132 RH |
309 | } |
310 | ||
311 | char * | |
217aa764 AM |
312 | bfd_elf_string_from_elf_section (bfd *abfd, |
313 | unsigned int shindex, | |
314 | unsigned int strindex) | |
252b5132 RH |
315 | { |
316 | Elf_Internal_Shdr *hdr; | |
317 | ||
318 | if (strindex == 0) | |
319 | return ""; | |
320 | ||
74f2e02b AM |
321 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
322 | return NULL; | |
323 | ||
252b5132 RH |
324 | hdr = elf_elfsections (abfd)[shindex]; |
325 | ||
326 | if (hdr->contents == NULL | |
327 | && bfd_elf_get_str_section (abfd, shindex) == NULL) | |
328 | return NULL; | |
329 | ||
330 | if (strindex >= hdr->sh_size) | |
331 | { | |
1b3a8575 | 332 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
252b5132 | 333 | (*_bfd_error_handler) |
d003868e AM |
334 | (_("%B: invalid string offset %u >= %lu for section `%s'"), |
335 | abfd, strindex, (unsigned long) hdr->sh_size, | |
1b3a8575 | 336 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 337 | ? ".shstrtab" |
1b3a8575 | 338 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 339 | return NULL; |
252b5132 RH |
340 | } |
341 | ||
342 | return ((char *) hdr->contents) + strindex; | |
343 | } | |
344 | ||
6cdc0ccc AM |
345 | /* Read and convert symbols to internal format. |
346 | SYMCOUNT specifies the number of symbols to read, starting from | |
347 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
348 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
349 | symbols, and symbol section index extensions, respectively. |
350 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
351 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
352 | |
353 | Elf_Internal_Sym * | |
217aa764 AM |
354 | bfd_elf_get_elf_syms (bfd *ibfd, |
355 | Elf_Internal_Shdr *symtab_hdr, | |
356 | size_t symcount, | |
357 | size_t symoffset, | |
358 | Elf_Internal_Sym *intsym_buf, | |
359 | void *extsym_buf, | |
360 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
361 | { |
362 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 363 | void *alloc_ext; |
df622259 | 364 | const bfd_byte *esym; |
6cdc0ccc AM |
365 | Elf_External_Sym_Shndx *alloc_extshndx; |
366 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 367 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
368 | Elf_Internal_Sym *isym; |
369 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 370 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
371 | size_t extsym_size; |
372 | bfd_size_type amt; | |
373 | file_ptr pos; | |
374 | ||
e44a2c9c AM |
375 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
376 | abort (); | |
377 | ||
6cdc0ccc AM |
378 | if (symcount == 0) |
379 | return intsym_buf; | |
380 | ||
381 | /* Normal syms might have section extension entries. */ | |
382 | shndx_hdr = NULL; | |
383 | if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr) | |
384 | shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr; | |
385 | ||
386 | /* Read the symbols. */ | |
387 | alloc_ext = NULL; | |
388 | alloc_extshndx = NULL; | |
4dd07732 | 389 | alloc_intsym = NULL; |
6cdc0ccc AM |
390 | bed = get_elf_backend_data (ibfd); |
391 | extsym_size = bed->s->sizeof_sym; | |
392 | amt = symcount * extsym_size; | |
393 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |
394 | if (extsym_buf == NULL) | |
395 | { | |
d0fb9a8d | 396 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
397 | extsym_buf = alloc_ext; |
398 | } | |
399 | if (extsym_buf == NULL | |
400 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
401 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
402 | { | |
403 | intsym_buf = NULL; | |
404 | goto out; | |
405 | } | |
406 | ||
407 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
408 | extshndx_buf = NULL; | |
409 | else | |
410 | { | |
411 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |
412 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |
413 | if (extshndx_buf == NULL) | |
414 | { | |
a50b1753 NC |
415 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
416 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); | |
6cdc0ccc AM |
417 | extshndx_buf = alloc_extshndx; |
418 | } | |
419 | if (extshndx_buf == NULL | |
420 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
421 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
422 | { | |
423 | intsym_buf = NULL; | |
424 | goto out; | |
425 | } | |
426 | } | |
427 | ||
428 | if (intsym_buf == NULL) | |
429 | { | |
a50b1753 NC |
430 | alloc_intsym = (Elf_Internal_Sym *) |
431 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); | |
4dd07732 | 432 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
433 | if (intsym_buf == NULL) |
434 | goto out; | |
435 | } | |
436 | ||
437 | /* Convert the symbols to internal form. */ | |
438 | isymend = intsym_buf + symcount; | |
a50b1753 NC |
439 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
440 | shndx = extshndx_buf; | |
6cdc0ccc AM |
441 | isym < isymend; |
442 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
443 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
444 | { | |
445 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
446 | (*_bfd_error_handler) (_("%B symbol number %lu references " | |
447 | "nonexistent SHT_SYMTAB_SHNDX section"), | |
448 | ibfd, (unsigned long) symoffset); | |
4dd07732 AM |
449 | if (alloc_intsym != NULL) |
450 | free (alloc_intsym); | |
8384fb8f AM |
451 | intsym_buf = NULL; |
452 | goto out; | |
453 | } | |
6cdc0ccc AM |
454 | |
455 | out: | |
456 | if (alloc_ext != NULL) | |
457 | free (alloc_ext); | |
458 | if (alloc_extshndx != NULL) | |
459 | free (alloc_extshndx); | |
460 | ||
461 | return intsym_buf; | |
462 | } | |
463 | ||
5cab59f6 AM |
464 | /* Look up a symbol name. */ |
465 | const char * | |
be8dd2ca AM |
466 | bfd_elf_sym_name (bfd *abfd, |
467 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
468 | Elf_Internal_Sym *isym, |
469 | asection *sym_sec) | |
5cab59f6 | 470 | { |
26c61ae5 | 471 | const char *name; |
5cab59f6 | 472 | unsigned int iname = isym->st_name; |
be8dd2ca | 473 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 474 | |
138f35cc JJ |
475 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
476 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 477 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
478 | { |
479 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
480 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
481 | } | |
482 | ||
26c61ae5 L |
483 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
484 | if (name == NULL) | |
485 | name = "(null)"; | |
486 | else if (sym_sec && *name == '\0') | |
487 | name = bfd_section_name (abfd, sym_sec); | |
488 | ||
489 | return name; | |
5cab59f6 AM |
490 | } |
491 | ||
dbb410c3 AM |
492 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
493 | sections. The first element is the flags, the rest are section | |
494 | pointers. */ | |
495 | ||
496 | typedef union elf_internal_group { | |
497 | Elf_Internal_Shdr *shdr; | |
498 | unsigned int flags; | |
499 | } Elf_Internal_Group; | |
500 | ||
b885599b AM |
501 | /* Return the name of the group signature symbol. Why isn't the |
502 | signature just a string? */ | |
503 | ||
504 | static const char * | |
217aa764 | 505 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 506 | { |
9dce4196 | 507 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
508 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
509 | Elf_External_Sym_Shndx eshndx; | |
510 | Elf_Internal_Sym isym; | |
b885599b | 511 | |
13792e9d L |
512 | /* First we need to ensure the symbol table is available. Make sure |
513 | that it is a symbol table section. */ | |
4fbb74a6 AM |
514 | if (ghdr->sh_link >= elf_numsections (abfd)) |
515 | return NULL; | |
13792e9d L |
516 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
517 | if (hdr->sh_type != SHT_SYMTAB | |
518 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
519 | return NULL; |
520 | ||
9dce4196 AM |
521 | /* Go read the symbol. */ |
522 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
523 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
524 | &isym, esym, &eshndx) == NULL) | |
b885599b | 525 | return NULL; |
9dce4196 | 526 | |
26c61ae5 | 527 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
528 | } |
529 | ||
dbb410c3 AM |
530 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
531 | ||
b34976b6 | 532 | static bfd_boolean |
217aa764 | 533 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
534 | { |
535 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
536 | ||
537 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
538 | is set to -1 if there are no SHT_GROUP sections. */ | |
539 | if (num_group == 0) | |
540 | { | |
541 | unsigned int i, shnum; | |
542 | ||
543 | /* First count the number of groups. If we have a SHT_GROUP | |
544 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 545 | shnum = elf_numsections (abfd); |
dbb410c3 | 546 | num_group = 0; |
08a40648 | 547 | |
44534af3 | 548 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 549 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 550 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
551 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
552 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 553 | |
dbb410c3 AM |
554 | for (i = 0; i < shnum; i++) |
555 | { | |
556 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 557 | |
44534af3 | 558 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
559 | num_group += 1; |
560 | } | |
561 | ||
562 | if (num_group == 0) | |
20dbb49d L |
563 | { |
564 | num_group = (unsigned) -1; | |
565 | elf_tdata (abfd)->num_group = num_group; | |
566 | } | |
567 | else | |
dbb410c3 AM |
568 | { |
569 | /* We keep a list of elf section headers for group sections, | |
570 | so we can find them quickly. */ | |
20dbb49d | 571 | bfd_size_type amt; |
d0fb9a8d | 572 | |
20dbb49d | 573 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 NC |
574 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
575 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 576 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 577 | return FALSE; |
dbb410c3 AM |
578 | |
579 | num_group = 0; | |
580 | for (i = 0; i < shnum; i++) | |
581 | { | |
582 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 583 | |
44534af3 | 584 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 585 | { |
973ffd63 | 586 | unsigned char *src; |
dbb410c3 AM |
587 | Elf_Internal_Group *dest; |
588 | ||
589 | /* Add to list of sections. */ | |
590 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
591 | num_group += 1; | |
592 | ||
593 | /* Read the raw contents. */ | |
594 | BFD_ASSERT (sizeof (*dest) >= 4); | |
595 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 NC |
596 | shdr->contents = (unsigned char *) |
597 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); | |
1783205a NC |
598 | /* PR binutils/4110: Handle corrupt group headers. */ |
599 | if (shdr->contents == NULL) | |
600 | { | |
601 | _bfd_error_handler | |
602 | (_("%B: Corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); | |
603 | bfd_set_error (bfd_error_bad_value); | |
604 | return FALSE; | |
605 | } | |
606 | ||
607 | memset (shdr->contents, 0, amt); | |
608 | ||
609 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
610 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
611 | != shdr->sh_size)) | |
b34976b6 | 612 | return FALSE; |
dbb410c3 AM |
613 | |
614 | /* Translate raw contents, a flag word followed by an | |
615 | array of elf section indices all in target byte order, | |
616 | to the flag word followed by an array of elf section | |
617 | pointers. */ | |
618 | src = shdr->contents + shdr->sh_size; | |
619 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
620 | while (1) | |
621 | { | |
622 | unsigned int idx; | |
623 | ||
624 | src -= 4; | |
625 | --dest; | |
626 | idx = H_GET_32 (abfd, src); | |
627 | if (src == shdr->contents) | |
628 | { | |
629 | dest->flags = idx; | |
b885599b AM |
630 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
631 | shdr->bfd_section->flags | |
632 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
633 | break; |
634 | } | |
635 | if (idx >= shnum) | |
636 | { | |
637 | ((*_bfd_error_handler) | |
d003868e | 638 | (_("%B: invalid SHT_GROUP entry"), abfd)); |
dbb410c3 AM |
639 | idx = 0; |
640 | } | |
641 | dest->shdr = elf_elfsections (abfd)[idx]; | |
642 | } | |
643 | } | |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | if (num_group != (unsigned) -1) | |
649 | { | |
650 | unsigned int i; | |
651 | ||
652 | for (i = 0; i < num_group; i++) | |
653 | { | |
654 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
655 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
656 | unsigned int n_elt = shdr->sh_size / 4; | |
657 | ||
658 | /* Look through this group's sections to see if current | |
659 | section is a member. */ | |
660 | while (--n_elt != 0) | |
661 | if ((++idx)->shdr == hdr) | |
662 | { | |
e0e8c97f | 663 | asection *s = NULL; |
dbb410c3 AM |
664 | |
665 | /* We are a member of this group. Go looking through | |
666 | other members to see if any others are linked via | |
667 | next_in_group. */ | |
668 | idx = (Elf_Internal_Group *) shdr->contents; | |
669 | n_elt = shdr->sh_size / 4; | |
670 | while (--n_elt != 0) | |
671 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 672 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
673 | break; |
674 | if (n_elt != 0) | |
675 | { | |
dbb410c3 AM |
676 | /* Snarf the group name from other member, and |
677 | insert current section in circular list. */ | |
945906ff AM |
678 | elf_group_name (newsect) = elf_group_name (s); |
679 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
680 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
681 | } |
682 | else | |
683 | { | |
dbb410c3 AM |
684 | const char *gname; |
685 | ||
b885599b AM |
686 | gname = group_signature (abfd, shdr); |
687 | if (gname == NULL) | |
b34976b6 | 688 | return FALSE; |
945906ff | 689 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
690 | |
691 | /* Start a circular list with one element. */ | |
945906ff | 692 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 693 | } |
b885599b | 694 | |
9dce4196 AM |
695 | /* If the group section has been created, point to the |
696 | new member. */ | |
dbb410c3 | 697 | if (shdr->bfd_section != NULL) |
945906ff | 698 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 699 | |
dbb410c3 AM |
700 | i = num_group - 1; |
701 | break; | |
702 | } | |
703 | } | |
704 | } | |
705 | ||
945906ff | 706 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 707 | { |
d003868e AM |
708 | (*_bfd_error_handler) (_("%B: no group info for section %A"), |
709 | abfd, newsect); | |
dbb410c3 | 710 | } |
b34976b6 | 711 | return TRUE; |
dbb410c3 AM |
712 | } |
713 | ||
3d7f7666 | 714 | bfd_boolean |
dd863624 | 715 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
716 | { |
717 | unsigned int i; | |
718 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
719 | bfd_boolean result = TRUE; | |
dd863624 L |
720 | asection *s; |
721 | ||
722 | /* Process SHF_LINK_ORDER. */ | |
723 | for (s = abfd->sections; s != NULL; s = s->next) | |
724 | { | |
725 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
726 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
727 | { | |
728 | unsigned int elfsec = this_hdr->sh_link; | |
729 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
730 | not set the sh_link or sh_info fields. Hence we could | |
731 | get the situation where elfsec is 0. */ | |
732 | if (elfsec == 0) | |
733 | { | |
4fbb74a6 | 734 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
735 | if (bed->link_order_error_handler) |
736 | bed->link_order_error_handler | |
737 | (_("%B: warning: sh_link not set for section `%A'"), | |
738 | abfd, s); | |
739 | } | |
740 | else | |
741 | { | |
91d6fa6a | 742 | asection *linksec = NULL; |
25bbc984 | 743 | |
4fbb74a6 AM |
744 | if (elfsec < elf_numsections (abfd)) |
745 | { | |
746 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 747 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 748 | } |
25bbc984 L |
749 | |
750 | /* PR 1991, 2008: | |
751 | Some strip/objcopy may leave an incorrect value in | |
752 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 753 | if (linksec == NULL) |
25bbc984 L |
754 | { |
755 | (*_bfd_error_handler) | |
756 | (_("%B: sh_link [%d] in section `%A' is incorrect"), | |
757 | s->owner, s, elfsec); | |
758 | result = FALSE; | |
759 | } | |
760 | ||
91d6fa6a | 761 | elf_linked_to_section (s) = linksec; |
dd863624 L |
762 | } |
763 | } | |
764 | } | |
3d7f7666 | 765 | |
dd863624 | 766 | /* Process section groups. */ |
3d7f7666 L |
767 | if (num_group == (unsigned) -1) |
768 | return result; | |
769 | ||
770 | for (i = 0; i < num_group; i++) | |
771 | { | |
772 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
773 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
774 | unsigned int n_elt = shdr->sh_size / 4; | |
775 | ||
776 | while (--n_elt != 0) | |
777 | if ((++idx)->shdr->bfd_section) | |
778 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
779 | else if (idx->shdr->sh_type == SHT_RELA | |
780 | || idx->shdr->sh_type == SHT_REL) | |
781 | /* We won't include relocation sections in section groups in | |
782 | output object files. We adjust the group section size here | |
783 | so that relocatable link will work correctly when | |
784 | relocation sections are in section group in input object | |
785 | files. */ | |
786 | shdr->bfd_section->size -= 4; | |
787 | else | |
788 | { | |
789 | /* There are some unknown sections in the group. */ | |
790 | (*_bfd_error_handler) | |
d003868e AM |
791 | (_("%B: unknown [%d] section `%s' in group [%s]"), |
792 | abfd, | |
3d7f7666 | 793 | (unsigned int) idx->shdr->sh_type, |
1b3a8575 AM |
794 | bfd_elf_string_from_elf_section (abfd, |
795 | (elf_elfheader (abfd) | |
796 | ->e_shstrndx), | |
797 | idx->shdr->sh_name), | |
3d7f7666 L |
798 | shdr->bfd_section->name); |
799 | result = FALSE; | |
800 | } | |
801 | } | |
802 | return result; | |
803 | } | |
804 | ||
72adc230 AM |
805 | bfd_boolean |
806 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
807 | { | |
808 | return elf_next_in_group (sec) != NULL; | |
809 | } | |
810 | ||
252b5132 RH |
811 | /* Make a BFD section from an ELF section. We store a pointer to the |
812 | BFD section in the bfd_section field of the header. */ | |
813 | ||
b34976b6 | 814 | bfd_boolean |
217aa764 AM |
815 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
816 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
817 | const char *name, |
818 | int shindex) | |
252b5132 RH |
819 | { |
820 | asection *newsect; | |
821 | flagword flags; | |
9c5bfbb7 | 822 | const struct elf_backend_data *bed; |
252b5132 RH |
823 | |
824 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 825 | return TRUE; |
252b5132 RH |
826 | |
827 | newsect = bfd_make_section_anyway (abfd, name); | |
828 | if (newsect == NULL) | |
b34976b6 | 829 | return FALSE; |
252b5132 | 830 | |
1829f4b2 AM |
831 | hdr->bfd_section = newsect; |
832 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 833 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 834 | |
2f89ff8d L |
835 | /* Always use the real type/flags. */ |
836 | elf_section_type (newsect) = hdr->sh_type; | |
837 | elf_section_flags (newsect) = hdr->sh_flags; | |
838 | ||
252b5132 RH |
839 | newsect->filepos = hdr->sh_offset; |
840 | ||
841 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
842 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
843 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 844 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 845 | return FALSE; |
252b5132 RH |
846 | |
847 | flags = SEC_NO_FLAGS; | |
848 | if (hdr->sh_type != SHT_NOBITS) | |
849 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 850 | if (hdr->sh_type == SHT_GROUP) |
b3096250 | 851 | flags |= SEC_GROUP | SEC_EXCLUDE; |
252b5132 RH |
852 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
853 | { | |
854 | flags |= SEC_ALLOC; | |
855 | if (hdr->sh_type != SHT_NOBITS) | |
856 | flags |= SEC_LOAD; | |
857 | } | |
858 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
859 | flags |= SEC_READONLY; | |
860 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
861 | flags |= SEC_CODE; | |
862 | else if ((flags & SEC_LOAD) != 0) | |
863 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
864 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
865 | { | |
866 | flags |= SEC_MERGE; | |
867 | newsect->entsize = hdr->sh_entsize; | |
868 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
869 | flags |= SEC_STRINGS; | |
870 | } | |
dbb410c3 AM |
871 | if (hdr->sh_flags & SHF_GROUP) |
872 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 873 | return FALSE; |
13ae64f3 JJ |
874 | if ((hdr->sh_flags & SHF_TLS) != 0) |
875 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
876 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
877 | flags |= SEC_EXCLUDE; | |
252b5132 | 878 | |
3d2b39cf | 879 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 880 | { |
3d2b39cf L |
881 | /* The debugging sections appear to be recognized only by name, |
882 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
883 | if (name [0] == '.') |
884 | { | |
f073ced3 AM |
885 | const char *p; |
886 | int n; | |
887 | if (name[1] == 'd') | |
888 | p = ".debug", n = 6; | |
889 | else if (name[1] == 'g' && name[2] == 'n') | |
890 | p = ".gnu.linkonce.wi.", n = 17; | |
891 | else if (name[1] == 'g' && name[2] == 'd') | |
892 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
893 | else if (name[1] == 'l') | |
894 | p = ".line", n = 5; | |
895 | else if (name[1] == 's') | |
896 | p = ".stab", n = 5; | |
897 | else if (name[1] == 'z') | |
898 | p = ".zdebug", n = 7; | |
899 | else | |
900 | p = NULL, n = 0; | |
901 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
902 | flags |= SEC_DEBUGGING; |
903 | } | |
904 | } | |
252b5132 RH |
905 | |
906 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
907 | only link a single copy of the section. This is used to support | |
908 | g++. g++ will emit each template expansion in its own section. | |
909 | The symbols will be defined as weak, so that multiple definitions | |
910 | are permitted. The GNU linker extension is to actually discard | |
911 | all but one of the sections. */ | |
0112cd26 | 912 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 913 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
914 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
915 | ||
fa152c49 JW |
916 | bed = get_elf_backend_data (abfd); |
917 | if (bed->elf_backend_section_flags) | |
918 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 919 | return FALSE; |
fa152c49 | 920 | |
252b5132 | 921 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 922 | return FALSE; |
252b5132 | 923 | |
718175fa JK |
924 | /* We do not parse the PT_NOTE segments as we are interested even in the |
925 | separate debug info files which may have the segments offsets corrupted. | |
926 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
927 | if (hdr->sh_type == SHT_NOTE) | |
928 | { | |
baea7ef1 | 929 | bfd_byte *contents; |
718175fa | 930 | |
baea7ef1 | 931 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
932 | return FALSE; |
933 | ||
baea7ef1 | 934 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, -1); |
718175fa JK |
935 | free (contents); |
936 | } | |
937 | ||
252b5132 RH |
938 | if ((flags & SEC_ALLOC) != 0) |
939 | { | |
940 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
941 | unsigned int i, nload; |
942 | ||
943 | /* Some ELF linkers produce binaries with all the program header | |
944 | p_paddr fields zero. If we have such a binary with more than | |
945 | one PT_LOAD header, then leave the section lma equal to vma | |
946 | so that we don't create sections with overlapping lma. */ | |
947 | phdr = elf_tdata (abfd)->phdr; | |
948 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
949 | if (phdr->p_paddr != 0) | |
950 | break; | |
951 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
952 | ++nload; | |
953 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
954 | return TRUE; | |
252b5132 | 955 | |
252b5132 RH |
956 | phdr = elf_tdata (abfd)->phdr; |
957 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
958 | { | |
86b2281f AM |
959 | if (((phdr->p_type == PT_LOAD |
960 | && (hdr->sh_flags & SHF_TLS) == 0) | |
961 | || phdr->p_type == PT_TLS) | |
9a83a553 | 962 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 963 | { |
88967714 AM |
964 | if ((flags & SEC_LOAD) == 0) |
965 | newsect->lma = (phdr->p_paddr | |
966 | + hdr->sh_addr - phdr->p_vaddr); | |
967 | else | |
968 | /* We used to use the same adjustment for SEC_LOAD | |
969 | sections, but that doesn't work if the segment | |
970 | is packed with code from multiple VMAs. | |
971 | Instead we calculate the section LMA based on | |
972 | the segment LMA. It is assumed that the | |
973 | segment will contain sections with contiguous | |
974 | LMAs, even if the VMAs are not. */ | |
975 | newsect->lma = (phdr->p_paddr | |
976 | + hdr->sh_offset - phdr->p_offset); | |
977 | ||
978 | /* With contiguous segments, we can't tell from file | |
979 | offsets whether a section with zero size should | |
980 | be placed at the end of one segment or the | |
981 | beginning of the next. Decide based on vaddr. */ | |
982 | if (hdr->sh_addr >= phdr->p_vaddr | |
983 | && (hdr->sh_addr + hdr->sh_size | |
984 | <= phdr->p_vaddr + phdr->p_memsz)) | |
985 | break; | |
252b5132 RH |
986 | } |
987 | } | |
988 | } | |
989 | ||
4a114e3e L |
990 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
991 | .zdebug_*, after the section flags is set. */ | |
992 | if ((flags & SEC_DEBUGGING) | |
993 | && ((name[1] == 'd' && name[6] == '_') | |
994 | || (name[1] == 'z' && name[7] == '_'))) | |
995 | { | |
996 | enum { nothing, compress, decompress } action = nothing; | |
4e011fb5 | 997 | char *new_name; |
4a114e3e L |
998 | |
999 | if (bfd_is_section_compressed (abfd, newsect)) | |
1000 | { | |
1001 | /* Compressed section. Check if we should decompress. */ | |
1002 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1003 | action = decompress; | |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | /* Normal section. Check if we should compress. */ | |
5a5ed5b0 | 1008 | if ((abfd->flags & BFD_COMPRESS) && newsect->size != 0) |
4a114e3e L |
1009 | action = compress; |
1010 | } | |
1011 | ||
4e011fb5 | 1012 | new_name = NULL; |
4a114e3e L |
1013 | switch (action) |
1014 | { | |
1015 | case nothing: | |
1016 | break; | |
1017 | case compress: | |
1018 | if (!bfd_init_section_compress_status (abfd, newsect)) | |
1019 | { | |
1020 | (*_bfd_error_handler) | |
bc823199 | 1021 | (_("%B: unable to initialize compress status for section %s"), |
4a114e3e L |
1022 | abfd, name); |
1023 | return FALSE; | |
1024 | } | |
4e011fb5 AM |
1025 | if (name[1] != 'z') |
1026 | { | |
1027 | unsigned int len = strlen (name); | |
1028 | ||
1029 | new_name = bfd_alloc (abfd, len + 2); | |
1030 | if (new_name == NULL) | |
1031 | return FALSE; | |
1032 | new_name[0] = '.'; | |
1033 | new_name[1] = 'z'; | |
1034 | memcpy (new_name + 2, name + 1, len); | |
1035 | } | |
4a114e3e L |
1036 | break; |
1037 | case decompress: | |
1038 | if (!bfd_init_section_decompress_status (abfd, newsect)) | |
1039 | { | |
1040 | (*_bfd_error_handler) | |
bc823199 | 1041 | (_("%B: unable to initialize decompress status for section %s"), |
4a114e3e L |
1042 | abfd, name); |
1043 | return FALSE; | |
1044 | } | |
4e011fb5 AM |
1045 | if (name[1] == 'z') |
1046 | { | |
1047 | unsigned int len = strlen (name); | |
1048 | ||
1049 | new_name = bfd_alloc (abfd, len); | |
1050 | if (new_name == NULL) | |
1051 | return FALSE; | |
1052 | new_name[0] = '.'; | |
1053 | memcpy (new_name + 1, name + 2, len - 1); | |
1054 | } | |
4a114e3e L |
1055 | break; |
1056 | } | |
4e011fb5 AM |
1057 | if (new_name != NULL) |
1058 | bfd_rename_section (abfd, newsect, new_name); | |
4a114e3e L |
1059 | } |
1060 | ||
b34976b6 | 1061 | return TRUE; |
252b5132 RH |
1062 | } |
1063 | ||
252b5132 RH |
1064 | const char *const bfd_elf_section_type_names[] = { |
1065 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
1066 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1067 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1068 | }; | |
1069 | ||
1049f94e | 1070 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1071 | output, and the reloc is against an external symbol, and nothing |
1072 | has given us any additional addend, the resulting reloc will also | |
1073 | be against the same symbol. In such a case, we don't want to | |
1074 | change anything about the way the reloc is handled, since it will | |
1075 | all be done at final link time. Rather than put special case code | |
1076 | into bfd_perform_relocation, all the reloc types use this howto | |
1077 | function. It just short circuits the reloc if producing | |
1049f94e | 1078 | relocatable output against an external symbol. */ |
252b5132 | 1079 | |
252b5132 | 1080 | bfd_reloc_status_type |
217aa764 AM |
1081 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1082 | arelent *reloc_entry, | |
1083 | asymbol *symbol, | |
1084 | void *data ATTRIBUTE_UNUSED, | |
1085 | asection *input_section, | |
1086 | bfd *output_bfd, | |
1087 | char **error_message ATTRIBUTE_UNUSED) | |
1088 | { | |
1089 | if (output_bfd != NULL | |
252b5132 RH |
1090 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1091 | && (! reloc_entry->howto->partial_inplace | |
1092 | || reloc_entry->addend == 0)) | |
1093 | { | |
1094 | reloc_entry->address += input_section->output_offset; | |
1095 | return bfd_reloc_ok; | |
1096 | } | |
1097 | ||
1098 | return bfd_reloc_continue; | |
1099 | } | |
1100 | \f | |
0ac4564e L |
1101 | /* Copy the program header and other data from one object module to |
1102 | another. */ | |
252b5132 | 1103 | |
b34976b6 | 1104 | bfd_boolean |
217aa764 | 1105 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 L |
1106 | { |
1107 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1108 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1109 | return TRUE; |
2d502050 L |
1110 | |
1111 | BFD_ASSERT (!elf_flags_init (obfd) | |
1112 | || (elf_elfheader (obfd)->e_flags | |
1113 | == elf_elfheader (ibfd)->e_flags)); | |
1114 | ||
0ac4564e | 1115 | elf_gp (obfd) = elf_gp (ibfd); |
2d502050 | 1116 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
b34976b6 | 1117 | elf_flags_init (obfd) = TRUE; |
104d59d1 JM |
1118 | |
1119 | /* Copy object attributes. */ | |
1120 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
b34976b6 | 1121 | return TRUE; |
2d502050 L |
1122 | } |
1123 | ||
cedc298e L |
1124 | static const char * |
1125 | get_segment_type (unsigned int p_type) | |
1126 | { | |
1127 | const char *pt; | |
1128 | switch (p_type) | |
1129 | { | |
1130 | case PT_NULL: pt = "NULL"; break; | |
1131 | case PT_LOAD: pt = "LOAD"; break; | |
1132 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1133 | case PT_INTERP: pt = "INTERP"; break; | |
1134 | case PT_NOTE: pt = "NOTE"; break; | |
1135 | case PT_SHLIB: pt = "SHLIB"; break; | |
1136 | case PT_PHDR: pt = "PHDR"; break; | |
1137 | case PT_TLS: pt = "TLS"; break; | |
1138 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1139 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1140 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1141 | default: pt = NULL; break; | |
1142 | } | |
1143 | return pt; | |
1144 | } | |
1145 | ||
f0b79d91 L |
1146 | /* Print out the program headers. */ |
1147 | ||
b34976b6 | 1148 | bfd_boolean |
217aa764 | 1149 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1150 | { |
a50b1753 | 1151 | FILE *f = (FILE *) farg; |
252b5132 RH |
1152 | Elf_Internal_Phdr *p; |
1153 | asection *s; | |
1154 | bfd_byte *dynbuf = NULL; | |
1155 | ||
1156 | p = elf_tdata (abfd)->phdr; | |
1157 | if (p != NULL) | |
1158 | { | |
1159 | unsigned int i, c; | |
1160 | ||
1161 | fprintf (f, _("\nProgram Header:\n")); | |
1162 | c = elf_elfheader (abfd)->e_phnum; | |
1163 | for (i = 0; i < c; i++, p++) | |
1164 | { | |
cedc298e | 1165 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1166 | char buf[20]; |
1167 | ||
cedc298e | 1168 | if (pt == NULL) |
252b5132 | 1169 | { |
cedc298e L |
1170 | sprintf (buf, "0x%lx", p->p_type); |
1171 | pt = buf; | |
252b5132 | 1172 | } |
dc810e39 | 1173 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1174 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1175 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1176 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1177 | fprintf (f, " paddr 0x"); |
60b89a18 | 1178 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1179 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1180 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1181 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1182 | fprintf (f, " memsz 0x"); |
60b89a18 | 1183 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1184 | fprintf (f, " flags %c%c%c", |
1185 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1186 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1187 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1188 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1189 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1190 | fprintf (f, "\n"); |
1191 | } | |
1192 | } | |
1193 | ||
1194 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1195 | if (s != NULL) | |
1196 | { | |
cb33740c | 1197 | unsigned int elfsec; |
dc810e39 | 1198 | unsigned long shlink; |
252b5132 RH |
1199 | bfd_byte *extdyn, *extdynend; |
1200 | size_t extdynsize; | |
217aa764 | 1201 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1202 | |
1203 | fprintf (f, _("\nDynamic Section:\n")); | |
1204 | ||
eea6121a | 1205 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1206 | goto error_return; |
1207 | ||
1208 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1209 | if (elfsec == SHN_BAD) |
252b5132 | 1210 | goto error_return; |
dc810e39 | 1211 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1212 | |
1213 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1214 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1215 | ||
1216 | extdyn = dynbuf; | |
eea6121a | 1217 | extdynend = extdyn + s->size; |
252b5132 RH |
1218 | for (; extdyn < extdynend; extdyn += extdynsize) |
1219 | { | |
1220 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1221 | const char *name = ""; |
252b5132 | 1222 | char ab[20]; |
b34976b6 | 1223 | bfd_boolean stringp; |
ad9563d6 | 1224 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1225 | |
217aa764 | 1226 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1227 | |
1228 | if (dyn.d_tag == DT_NULL) | |
1229 | break; | |
1230 | ||
b34976b6 | 1231 | stringp = FALSE; |
252b5132 RH |
1232 | switch (dyn.d_tag) |
1233 | { | |
1234 | default: | |
ad9563d6 CM |
1235 | if (bed->elf_backend_get_target_dtag) |
1236 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1237 | ||
1238 | if (!strcmp (name, "")) | |
1239 | { | |
1240 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
1241 | name = ab; | |
1242 | } | |
252b5132 RH |
1243 | break; |
1244 | ||
b34976b6 | 1245 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1246 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1247 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1248 | case DT_HASH: name = "HASH"; break; | |
1249 | case DT_STRTAB: name = "STRTAB"; break; | |
1250 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1251 | case DT_RELA: name = "RELA"; break; | |
1252 | case DT_RELASZ: name = "RELASZ"; break; | |
1253 | case DT_RELAENT: name = "RELAENT"; break; | |
1254 | case DT_STRSZ: name = "STRSZ"; break; | |
1255 | case DT_SYMENT: name = "SYMENT"; break; | |
1256 | case DT_INIT: name = "INIT"; break; | |
1257 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1258 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1259 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1260 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1261 | case DT_REL: name = "REL"; break; | |
1262 | case DT_RELSZ: name = "RELSZ"; break; | |
1263 | case DT_RELENT: name = "RELENT"; break; | |
1264 | case DT_PLTREL: name = "PLTREL"; break; | |
1265 | case DT_DEBUG: name = "DEBUG"; break; | |
1266 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1267 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1268 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1269 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1270 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1271 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1272 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1273 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1274 | case DT_FLAGS: name = "FLAGS"; break; |
1275 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1276 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1277 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1278 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1279 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1280 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1281 | case DT_FEATURE: name = "FEATURE"; break; | |
1282 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1283 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1284 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1285 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1286 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1287 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1288 | case DT_PLTPAD: name = "PLTPAD"; break; |
1289 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1290 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1291 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1292 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1293 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1294 | case DT_VERSYM: name = "VERSYM"; break; |
1295 | case DT_VERDEF: name = "VERDEF"; break; | |
1296 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1297 | case DT_VERNEED: name = "VERNEED"; break; | |
1298 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1299 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1300 | case DT_USED: name = "USED"; break; |
b34976b6 | 1301 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1302 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1303 | } |
1304 | ||
ad9563d6 | 1305 | fprintf (f, " %-20s ", name); |
252b5132 | 1306 | if (! stringp) |
a1f3c56e AN |
1307 | { |
1308 | fprintf (f, "0x"); | |
1309 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1310 | } | |
252b5132 RH |
1311 | else |
1312 | { | |
1313 | const char *string; | |
dc810e39 | 1314 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1315 | |
dc810e39 | 1316 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1317 | if (string == NULL) |
1318 | goto error_return; | |
1319 | fprintf (f, "%s", string); | |
1320 | } | |
1321 | fprintf (f, "\n"); | |
1322 | } | |
1323 | ||
1324 | free (dynbuf); | |
1325 | dynbuf = NULL; | |
1326 | } | |
1327 | ||
1328 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1329 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1330 | { | |
fc0e6df6 | 1331 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1332 | return FALSE; |
252b5132 RH |
1333 | } |
1334 | ||
1335 | if (elf_dynverdef (abfd) != 0) | |
1336 | { | |
1337 | Elf_Internal_Verdef *t; | |
1338 | ||
1339 | fprintf (f, _("\nVersion definitions:\n")); | |
1340 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1341 | { | |
1342 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1343 | t->vd_flags, t->vd_hash, |
1344 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1345 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1346 | { |
1347 | Elf_Internal_Verdaux *a; | |
1348 | ||
1349 | fprintf (f, "\t"); | |
1350 | for (a = t->vd_auxptr->vda_nextptr; | |
1351 | a != NULL; | |
1352 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1353 | fprintf (f, "%s ", |
1354 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1355 | fprintf (f, "\n"); |
1356 | } | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | if (elf_dynverref (abfd) != 0) | |
1361 | { | |
1362 | Elf_Internal_Verneed *t; | |
1363 | ||
1364 | fprintf (f, _("\nVersion References:\n")); | |
1365 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1366 | { | |
1367 | Elf_Internal_Vernaux *a; | |
1368 | ||
d0fb9a8d JJ |
1369 | fprintf (f, _(" required from %s:\n"), |
1370 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1371 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1372 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1373 | a->vna_flags, a->vna_other, |
1374 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1375 | } |
1376 | } | |
1377 | ||
b34976b6 | 1378 | return TRUE; |
252b5132 RH |
1379 | |
1380 | error_return: | |
1381 | if (dynbuf != NULL) | |
1382 | free (dynbuf); | |
b34976b6 | 1383 | return FALSE; |
252b5132 RH |
1384 | } |
1385 | ||
1386 | /* Display ELF-specific fields of a symbol. */ | |
1387 | ||
1388 | void | |
217aa764 AM |
1389 | bfd_elf_print_symbol (bfd *abfd, |
1390 | void *filep, | |
1391 | asymbol *symbol, | |
1392 | bfd_print_symbol_type how) | |
252b5132 | 1393 | { |
a50b1753 | 1394 | FILE *file = (FILE *) filep; |
252b5132 RH |
1395 | switch (how) |
1396 | { | |
1397 | case bfd_print_symbol_name: | |
1398 | fprintf (file, "%s", symbol->name); | |
1399 | break; | |
1400 | case bfd_print_symbol_more: | |
1401 | fprintf (file, "elf "); | |
60b89a18 | 1402 | bfd_fprintf_vma (abfd, file, symbol->value); |
0af1713e | 1403 | fprintf (file, " %lx", (unsigned long) symbol->flags); |
252b5132 RH |
1404 | break; |
1405 | case bfd_print_symbol_all: | |
1406 | { | |
4e8a9624 AM |
1407 | const char *section_name; |
1408 | const char *name = NULL; | |
9c5bfbb7 | 1409 | const struct elf_backend_data *bed; |
7a13edea | 1410 | unsigned char st_other; |
dbb410c3 | 1411 | bfd_vma val; |
c044fabd | 1412 | |
252b5132 | 1413 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1414 | |
1415 | bed = get_elf_backend_data (abfd); | |
1416 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1417 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1418 | |
1419 | if (name == NULL) | |
1420 | { | |
7ee38065 | 1421 | name = symbol->name; |
217aa764 | 1422 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1423 | } |
1424 | ||
252b5132 RH |
1425 | fprintf (file, " %s\t", section_name); |
1426 | /* Print the "other" value for a symbol. For common symbols, | |
1427 | we've already printed the size; now print the alignment. | |
1428 | For other symbols, we have no specified alignment, and | |
1429 | we've printed the address; now print the size. */ | |
dcf6c779 | 1430 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1431 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1432 | else | |
1433 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1434 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1435 | |
1436 | /* If we have version information, print it. */ | |
1437 | if (elf_tdata (abfd)->dynversym_section != 0 | |
1438 | && (elf_tdata (abfd)->dynverdef_section != 0 | |
1439 | || elf_tdata (abfd)->dynverref_section != 0)) | |
1440 | { | |
1441 | unsigned int vernum; | |
1442 | const char *version_string; | |
1443 | ||
1444 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION; | |
1445 | ||
1446 | if (vernum == 0) | |
1447 | version_string = ""; | |
1448 | else if (vernum == 1) | |
1449 | version_string = "Base"; | |
1450 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1451 | version_string = | |
1452 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1453 | else | |
1454 | { | |
1455 | Elf_Internal_Verneed *t; | |
1456 | ||
1457 | version_string = ""; | |
1458 | for (t = elf_tdata (abfd)->verref; | |
1459 | t != NULL; | |
1460 | t = t->vn_nextref) | |
1461 | { | |
1462 | Elf_Internal_Vernaux *a; | |
1463 | ||
1464 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1465 | { | |
1466 | if (a->vna_other == vernum) | |
1467 | { | |
1468 | version_string = a->vna_nodename; | |
1469 | break; | |
1470 | } | |
1471 | } | |
1472 | } | |
1473 | } | |
1474 | ||
1475 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0) | |
1476 | fprintf (file, " %-11s", version_string); | |
1477 | else | |
1478 | { | |
1479 | int i; | |
1480 | ||
1481 | fprintf (file, " (%s)", version_string); | |
1482 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1483 | putc (' ', file); | |
1484 | } | |
1485 | } | |
1486 | ||
1487 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1488 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1489 | |
7a13edea NC |
1490 | switch (st_other) |
1491 | { | |
1492 | case 0: break; | |
1493 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1494 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1495 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1496 | default: | |
1497 | /* Some other non-defined flags are also present, so print | |
1498 | everything hex. */ | |
1499 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1500 | } | |
252b5132 | 1501 | |
587ff49e | 1502 | fprintf (file, " %s", name); |
252b5132 RH |
1503 | } |
1504 | break; | |
1505 | } | |
1506 | } | |
252b5132 | 1507 | |
252b5132 RH |
1508 | /* Allocate an ELF string table--force the first byte to be zero. */ |
1509 | ||
1510 | struct bfd_strtab_hash * | |
217aa764 | 1511 | _bfd_elf_stringtab_init (void) |
252b5132 RH |
1512 | { |
1513 | struct bfd_strtab_hash *ret; | |
1514 | ||
1515 | ret = _bfd_stringtab_init (); | |
1516 | if (ret != NULL) | |
1517 | { | |
1518 | bfd_size_type loc; | |
1519 | ||
b34976b6 | 1520 | loc = _bfd_stringtab_add (ret, "", TRUE, FALSE); |
252b5132 RH |
1521 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1); |
1522 | if (loc == (bfd_size_type) -1) | |
1523 | { | |
1524 | _bfd_stringtab_free (ret); | |
1525 | ret = NULL; | |
1526 | } | |
1527 | } | |
1528 | return ret; | |
1529 | } | |
1530 | \f | |
1531 | /* ELF .o/exec file reading */ | |
1532 | ||
c044fabd | 1533 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1534 | |
b34976b6 | 1535 | bfd_boolean |
217aa764 | 1536 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1537 | { |
4fbb74a6 AM |
1538 | Elf_Internal_Shdr *hdr; |
1539 | Elf_Internal_Ehdr *ehdr; | |
1540 | const struct elf_backend_data *bed; | |
90937f86 | 1541 | const char *name; |
252b5132 | 1542 | |
4fbb74a6 AM |
1543 | if (shindex >= elf_numsections (abfd)) |
1544 | return FALSE; | |
1545 | ||
1546 | hdr = elf_elfsections (abfd)[shindex]; | |
1547 | ehdr = elf_elfheader (abfd); | |
1548 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 1549 | hdr->sh_name); |
933d961a JJ |
1550 | if (name == NULL) |
1551 | return FALSE; | |
252b5132 | 1552 | |
4fbb74a6 | 1553 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
1554 | switch (hdr->sh_type) |
1555 | { | |
1556 | case SHT_NULL: | |
1557 | /* Inactive section. Throw it away. */ | |
b34976b6 | 1558 | return TRUE; |
252b5132 RH |
1559 | |
1560 | case SHT_PROGBITS: /* Normal section with contents. */ | |
252b5132 RH |
1561 | case SHT_NOBITS: /* .bss section. */ |
1562 | case SHT_HASH: /* .hash section. */ | |
1563 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1564 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1565 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1566 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 1567 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 1568 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
6dc132d9 | 1569 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 | 1570 | |
797fc050 | 1571 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 1572 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 1573 | return FALSE; |
cfcac11d NC |
1574 | if (hdr->sh_link > elf_numsections (abfd)) |
1575 | { | |
caa83f8b | 1576 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
1577 | field set to SHN_BEFORE or SHN_AFTER. */ |
1578 | switch (bfd_get_arch (abfd)) | |
1579 | { | |
caa83f8b | 1580 | case bfd_arch_i386: |
cfcac11d NC |
1581 | case bfd_arch_sparc: |
1582 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
1583 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
1584 | break; | |
1585 | /* Otherwise fall through. */ | |
1586 | default: | |
1587 | return FALSE; | |
1588 | } | |
1589 | } | |
1590 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
8e0ed13f | 1591 | return FALSE; |
cfcac11d | 1592 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
1593 | { |
1594 | Elf_Internal_Shdr *dynsymhdr; | |
1595 | ||
1596 | /* The shared libraries distributed with hpux11 have a bogus | |
1597 | sh_link field for the ".dynamic" section. Find the | |
1598 | string table for the ".dynsym" section instead. */ | |
1599 | if (elf_dynsymtab (abfd) != 0) | |
1600 | { | |
1601 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
1602 | hdr->sh_link = dynsymhdr->sh_link; | |
1603 | } | |
1604 | else | |
1605 | { | |
1606 | unsigned int i, num_sec; | |
1607 | ||
1608 | num_sec = elf_numsections (abfd); | |
1609 | for (i = 1; i < num_sec; i++) | |
1610 | { | |
1611 | dynsymhdr = elf_elfsections (abfd)[i]; | |
1612 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
1613 | { | |
1614 | hdr->sh_link = dynsymhdr->sh_link; | |
1615 | break; | |
1616 | } | |
1617 | } | |
1618 | } | |
1619 | } | |
1620 | break; | |
1621 | ||
252b5132 RH |
1622 | case SHT_SYMTAB: /* A symbol table */ |
1623 | if (elf_onesymtab (abfd) == shindex) | |
b34976b6 | 1624 | return TRUE; |
252b5132 | 1625 | |
a50b2160 JJ |
1626 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
1627 | return FALSE; | |
3337c1e5 | 1628 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
1629 | { |
1630 | if (hdr->sh_size != 0) | |
1631 | return FALSE; | |
1632 | /* Some assemblers erroneously set sh_info to one with a | |
1633 | zero sh_size. ld sees this as a global symbol count | |
1634 | of (unsigned) -1. Fix it here. */ | |
1635 | hdr->sh_info = 0; | |
1636 | return TRUE; | |
1637 | } | |
252b5132 RH |
1638 | BFD_ASSERT (elf_onesymtab (abfd) == 0); |
1639 | elf_onesymtab (abfd) = shindex; | |
1640 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1641 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1642 | abfd->flags |= HAS_SYMS; | |
1643 | ||
1644 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
1645 | SHF_ALLOC is set, and this is a shared object, then we also |
1646 | treat this section as a BFD section. We can not base the | |
1647 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1648 | set in a relocatable object file, which would confuse the | |
1649 | linker. */ | |
252b5132 RH |
1650 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
1651 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
1652 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1653 | shindex)) | |
b34976b6 | 1654 | return FALSE; |
252b5132 | 1655 | |
1b3a8575 AM |
1656 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
1657 | can't read symbols without that section loaded as well. It | |
1658 | is most likely specified by the next section header. */ | |
1659 | if (elf_elfsections (abfd)[elf_symtab_shndx (abfd)]->sh_link != shindex) | |
1660 | { | |
1661 | unsigned int i, num_sec; | |
1662 | ||
1663 | num_sec = elf_numsections (abfd); | |
1664 | for (i = shindex + 1; i < num_sec; i++) | |
1665 | { | |
1666 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1667 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1668 | && hdr2->sh_link == shindex) | |
1669 | break; | |
1670 | } | |
1671 | if (i == num_sec) | |
1672 | for (i = 1; i < shindex; i++) | |
1673 | { | |
1674 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1675 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1676 | && hdr2->sh_link == shindex) | |
1677 | break; | |
1678 | } | |
1679 | if (i != shindex) | |
1680 | return bfd_section_from_shdr (abfd, i); | |
1681 | } | |
b34976b6 | 1682 | return TRUE; |
252b5132 RH |
1683 | |
1684 | case SHT_DYNSYM: /* A dynamic symbol table */ | |
1685 | if (elf_dynsymtab (abfd) == shindex) | |
b34976b6 | 1686 | return TRUE; |
252b5132 | 1687 | |
a50b2160 JJ |
1688 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
1689 | return FALSE; | |
eee3b786 AM |
1690 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
1691 | { | |
1692 | if (hdr->sh_size != 0) | |
1693 | return FALSE; | |
1694 | /* Some linkers erroneously set sh_info to one with a | |
1695 | zero sh_size. ld sees this as a global symbol count | |
1696 | of (unsigned) -1. Fix it here. */ | |
1697 | hdr->sh_info = 0; | |
1698 | return TRUE; | |
1699 | } | |
252b5132 RH |
1700 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); |
1701 | elf_dynsymtab (abfd) = shindex; | |
1702 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1703 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1704 | abfd->flags |= HAS_SYMS; | |
1705 | ||
1706 | /* Besides being a symbol table, we also treat this as a regular | |
1707 | section, so that objcopy can handle it. */ | |
6dc132d9 | 1708 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 | 1709 | |
9ad5cbcf AM |
1710 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */ |
1711 | if (elf_symtab_shndx (abfd) == shindex) | |
b34976b6 | 1712 | return TRUE; |
9ad5cbcf | 1713 | |
1b3a8575 | 1714 | BFD_ASSERT (elf_symtab_shndx (abfd) == 0); |
9ad5cbcf AM |
1715 | elf_symtab_shndx (abfd) = shindex; |
1716 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1717 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
b34976b6 | 1718 | return TRUE; |
9ad5cbcf | 1719 | |
252b5132 RH |
1720 | case SHT_STRTAB: /* A string table */ |
1721 | if (hdr->bfd_section != NULL) | |
b34976b6 | 1722 | return TRUE; |
252b5132 RH |
1723 | if (ehdr->e_shstrndx == shindex) |
1724 | { | |
1725 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1726 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
b34976b6 | 1727 | return TRUE; |
252b5132 | 1728 | } |
1b3a8575 AM |
1729 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
1730 | { | |
1731 | symtab_strtab: | |
1732 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1733 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
1734 | return TRUE; | |
1735 | } | |
1736 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) | |
1737 | { | |
1738 | dynsymtab_strtab: | |
1739 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1740 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
1741 | elf_elfsections (abfd)[shindex] = hdr; | |
1742 | /* We also treat this as a regular section, so that objcopy | |
1743 | can handle it. */ | |
6dc132d9 L |
1744 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1745 | shindex); | |
1b3a8575 | 1746 | } |
252b5132 | 1747 | |
1b3a8575 AM |
1748 | /* If the string table isn't one of the above, then treat it as a |
1749 | regular section. We need to scan all the headers to be sure, | |
1750 | just in case this strtab section appeared before the above. */ | |
1751 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
1752 | { | |
1753 | unsigned int i, num_sec; | |
252b5132 | 1754 | |
1b3a8575 AM |
1755 | num_sec = elf_numsections (abfd); |
1756 | for (i = 1; i < num_sec; i++) | |
1757 | { | |
1758 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1759 | if (hdr2->sh_link == shindex) | |
1760 | { | |
933d961a JJ |
1761 | /* Prevent endless recursion on broken objects. */ |
1762 | if (i == shindex) | |
1763 | return FALSE; | |
1b3a8575 AM |
1764 | if (! bfd_section_from_shdr (abfd, i)) |
1765 | return FALSE; | |
1766 | if (elf_onesymtab (abfd) == i) | |
1767 | goto symtab_strtab; | |
1768 | if (elf_dynsymtab (abfd) == i) | |
1769 | goto dynsymtab_strtab; | |
1770 | } | |
1771 | } | |
1772 | } | |
6dc132d9 | 1773 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1774 | |
1775 | case SHT_REL: | |
1776 | case SHT_RELA: | |
1777 | /* *These* do a lot of work -- but build no sections! */ | |
1778 | { | |
1779 | asection *target_sect; | |
d4730f92 | 1780 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 1781 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 BS |
1782 | struct bfd_elf_section_data *esdt; |
1783 | bfd_size_type amt; | |
252b5132 | 1784 | |
aa2ca951 JJ |
1785 | if (hdr->sh_entsize |
1786 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 JJ |
1787 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
1788 | return FALSE; | |
1789 | ||
03ae5f59 | 1790 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 1791 | if (hdr->sh_link >= num_sec) |
03ae5f59 ILT |
1792 | { |
1793 | ((*_bfd_error_handler) | |
d003868e AM |
1794 | (_("%B: invalid link %lu for reloc section %s (index %u)"), |
1795 | abfd, hdr->sh_link, name, shindex)); | |
6dc132d9 L |
1796 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1797 | shindex); | |
03ae5f59 ILT |
1798 | } |
1799 | ||
252b5132 RH |
1800 | /* For some incomprehensible reason Oracle distributes |
1801 | libraries for Solaris in which some of the objects have | |
1802 | bogus sh_link fields. It would be nice if we could just | |
1803 | reject them, but, unfortunately, some people need to use | |
1804 | them. We scan through the section headers; if we find only | |
1805 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
1806 | to it. I hope this doesn't break anything. |
1807 | ||
1808 | Don't do it on executable nor shared library. */ | |
1809 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
1810 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
1811 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
1812 | { | |
9ad5cbcf | 1813 | unsigned int scan; |
252b5132 RH |
1814 | int found; |
1815 | ||
1816 | found = 0; | |
9ad5cbcf | 1817 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
1818 | { |
1819 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
1820 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
1821 | { | |
1822 | if (found != 0) | |
1823 | { | |
1824 | found = 0; | |
1825 | break; | |
1826 | } | |
1827 | found = scan; | |
1828 | } | |
1829 | } | |
1830 | if (found != 0) | |
1831 | hdr->sh_link = found; | |
1832 | } | |
1833 | ||
1834 | /* Get the symbol table. */ | |
1b3a8575 AM |
1835 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
1836 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 1837 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
b34976b6 | 1838 | return FALSE; |
252b5132 RH |
1839 | |
1840 | /* If this reloc section does not use the main symbol table we | |
1841 | don't treat it as a reloc section. BFD can't adequately | |
1842 | represent such a section, so at least for now, we don't | |
c044fabd | 1843 | try. We just present it as a normal section. We also |
60bcf0fa | 1844 | can't use it as a reloc section if it points to the null |
83b89087 L |
1845 | section, an invalid section, another reloc section, or its |
1846 | sh_link points to the null section. */ | |
185ef66d | 1847 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 1848 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 1849 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
1850 | || hdr->sh_info >= num_sec |
1851 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
1852 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
6dc132d9 L |
1853 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1854 | shindex); | |
252b5132 RH |
1855 | |
1856 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
b34976b6 | 1857 | return FALSE; |
252b5132 RH |
1858 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
1859 | if (target_sect == NULL) | |
b34976b6 | 1860 | return FALSE; |
252b5132 | 1861 | |
d4730f92 BS |
1862 | esdt = elf_section_data (target_sect); |
1863 | if (hdr->sh_type == SHT_RELA) | |
1864 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 1865 | else |
d4730f92 BS |
1866 | p_hdr = &esdt->rel.hdr; |
1867 | ||
1868 | BFD_ASSERT (*p_hdr == NULL); | |
1869 | amt = sizeof (*hdr2); | |
1870 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
1871 | if (hdr2 == NULL) | |
1872 | return FALSE; | |
252b5132 | 1873 | *hdr2 = *hdr; |
d4730f92 | 1874 | *p_hdr = hdr2; |
252b5132 | 1875 | elf_elfsections (abfd)[shindex] = hdr2; |
d9bc7a44 | 1876 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
1877 | target_sect->flags |= SEC_RELOC; |
1878 | target_sect->relocation = NULL; | |
1879 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
1880 | /* In the section to which the relocations apply, mark whether |
1881 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 1882 | if (hdr->sh_size != 0) |
d4730f92 BS |
1883 | { |
1884 | if (hdr->sh_type == SHT_RELA) | |
1885 | target_sect->use_rela_p = 1; | |
1886 | } | |
252b5132 | 1887 | abfd->flags |= HAS_RELOC; |
b34976b6 | 1888 | return TRUE; |
252b5132 | 1889 | } |
252b5132 RH |
1890 | |
1891 | case SHT_GNU_verdef: | |
1892 | elf_dynverdef (abfd) = shindex; | |
1893 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
6dc132d9 | 1894 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1895 | |
1896 | case SHT_GNU_versym: | |
a50b2160 JJ |
1897 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
1898 | return FALSE; | |
252b5132 RH |
1899 | elf_dynversym (abfd) = shindex; |
1900 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
6dc132d9 | 1901 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1902 | |
1903 | case SHT_GNU_verneed: | |
1904 | elf_dynverref (abfd) = shindex; | |
1905 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
6dc132d9 | 1906 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1907 | |
1908 | case SHT_SHLIB: | |
b34976b6 | 1909 | return TRUE; |
252b5132 | 1910 | |
dbb410c3 | 1911 | case SHT_GROUP: |
44534af3 | 1912 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
a50b2160 | 1913 | return FALSE; |
6dc132d9 | 1914 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 1915 | return FALSE; |
dbb410c3 AM |
1916 | if (hdr->contents != NULL) |
1917 | { | |
1918 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
1783205a | 1919 | unsigned int n_elt = hdr->sh_size / GRP_ENTRY_SIZE; |
dbb410c3 AM |
1920 | asection *s; |
1921 | ||
b885599b AM |
1922 | if (idx->flags & GRP_COMDAT) |
1923 | hdr->bfd_section->flags | |
1924 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
1925 | ||
45c5e9ed L |
1926 | /* We try to keep the same section order as it comes in. */ |
1927 | idx += n_elt; | |
dbb410c3 | 1928 | while (--n_elt != 0) |
1783205a NC |
1929 | { |
1930 | --idx; | |
1931 | ||
1932 | if (idx->shdr != NULL | |
1933 | && (s = idx->shdr->bfd_section) != NULL | |
1934 | && elf_next_in_group (s) != NULL) | |
1935 | { | |
1936 | elf_next_in_group (hdr->bfd_section) = s; | |
1937 | break; | |
1938 | } | |
1939 | } | |
dbb410c3 AM |
1940 | } |
1941 | break; | |
1942 | ||
252b5132 | 1943 | default: |
104d59d1 JM |
1944 | /* Possibly an attributes section. */ |
1945 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
1946 | || hdr->sh_type == bed->obj_attrs_section_type) | |
1947 | { | |
1948 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
1949 | return FALSE; | |
1950 | _bfd_elf_parse_attributes (abfd, hdr); | |
1951 | return TRUE; | |
1952 | } | |
1953 | ||
252b5132 | 1954 | /* Check for any processor-specific section types. */ |
3eb70a79 L |
1955 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
1956 | return TRUE; | |
1957 | ||
1958 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
1959 | { | |
1960 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
1961 | /* FIXME: How to properly handle allocated section reserved | |
1962 | for applications? */ | |
1963 | (*_bfd_error_handler) | |
1964 | (_("%B: don't know how to handle allocated, application " | |
1965 | "specific section `%s' [0x%8x]"), | |
1966 | abfd, name, hdr->sh_type); | |
1967 | else | |
1968 | /* Allow sections reserved for applications. */ | |
1969 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
1970 | shindex); | |
1971 | } | |
1972 | else if (hdr->sh_type >= SHT_LOPROC | |
1973 | && hdr->sh_type <= SHT_HIPROC) | |
1974 | /* FIXME: We should handle this section. */ | |
1975 | (*_bfd_error_handler) | |
1976 | (_("%B: don't know how to handle processor specific section " | |
1977 | "`%s' [0x%8x]"), | |
1978 | abfd, name, hdr->sh_type); | |
1979 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) | |
ff15b240 NC |
1980 | { |
1981 | /* Unrecognised OS-specific sections. */ | |
1982 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
1983 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 1984 | required to correctly process the section and the file should |
ff15b240 NC |
1985 | be rejected with an error message. */ |
1986 | (*_bfd_error_handler) | |
1987 | (_("%B: don't know how to handle OS specific section " | |
1988 | "`%s' [0x%8x]"), | |
1989 | abfd, name, hdr->sh_type); | |
1990 | else | |
1991 | /* Otherwise it should be processed. */ | |
1992 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
1993 | } | |
3eb70a79 L |
1994 | else |
1995 | /* FIXME: We should handle this section. */ | |
1996 | (*_bfd_error_handler) | |
1997 | (_("%B: don't know how to handle section `%s' [0x%8x]"), | |
1998 | abfd, name, hdr->sh_type); | |
1999 | ||
2000 | return FALSE; | |
252b5132 RH |
2001 | } |
2002 | ||
b34976b6 | 2003 | return TRUE; |
252b5132 RH |
2004 | } |
2005 | ||
87d72d41 | 2006 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2007 | |
87d72d41 AM |
2008 | Elf_Internal_Sym * |
2009 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2010 | bfd *abfd, | |
2011 | unsigned long r_symndx) | |
ec338859 | 2012 | { |
ec338859 AM |
2013 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2014 | ||
a5d1b3b5 AM |
2015 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2016 | { | |
2017 | Elf_Internal_Shdr *symtab_hdr; | |
2018 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2019 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2020 | |
a5d1b3b5 AM |
2021 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2022 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2023 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2024 | return NULL; |
9ad5cbcf | 2025 | |
a5d1b3b5 AM |
2026 | if (cache->abfd != abfd) |
2027 | { | |
2028 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2029 | cache->abfd = abfd; | |
2030 | } | |
2031 | cache->indx[ent] = r_symndx; | |
ec338859 | 2032 | } |
a5d1b3b5 | 2033 | |
87d72d41 | 2034 | return &cache->sym[ent]; |
ec338859 AM |
2035 | } |
2036 | ||
252b5132 RH |
2037 | /* Given an ELF section number, retrieve the corresponding BFD |
2038 | section. */ | |
2039 | ||
2040 | asection * | |
91d6fa6a | 2041 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2042 | { |
91d6fa6a | 2043 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2044 | return NULL; |
91d6fa6a | 2045 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2046 | } |
2047 | ||
b35d266b | 2048 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2049 | { |
0112cd26 NC |
2050 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2051 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2052 | }; |
2053 | ||
b35d266b | 2054 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2055 | { |
0112cd26 NC |
2056 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
2057 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2058 | }; |
2059 | ||
b35d266b | 2060 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2061 | { |
0112cd26 NC |
2062 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2063 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2064 | /* There are more DWARF sections than these, but they needn't be added here |
2065 | unless you have to cope with broken compilers that don't emit section | |
2066 | attributes or you want to help the user writing assembler. */ | |
0112cd26 NC |
2067 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2068 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2069 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2070 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2071 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2072 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, | |
2073 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2074 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2075 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2076 | }; |
2077 | ||
b35d266b | 2078 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2079 | { |
0112cd26 NC |
2080 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2081 | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2082 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2083 | }; |
2084 | ||
b35d266b | 2085 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2086 | { |
0112cd26 | 2087 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
68efed41 | 2088 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
0112cd26 NC |
2089 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2090 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
2091 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, | |
2092 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
2093 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, | |
2094 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2095 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2096 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2097 | }; |
2098 | ||
b35d266b | 2099 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2100 | { |
0112cd26 NC |
2101 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2102 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2103 | }; |
2104 | ||
b35d266b | 2105 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2106 | { |
0112cd26 NC |
2107 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2108 | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2109 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, | |
2110 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2111 | }; |
2112 | ||
b35d266b | 2113 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2114 | { |
0112cd26 NC |
2115 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
2116 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2117 | }; |
2118 | ||
b35d266b | 2119 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2120 | { |
0112cd26 NC |
2121 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
2122 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, | |
2123 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2124 | }; |
2125 | ||
b35d266b | 2126 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2127 | { |
0112cd26 NC |
2128 | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
2129 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2130 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2131 | }; |
2132 | ||
b35d266b | 2133 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2134 | { |
0112cd26 NC |
2135 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2136 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2137 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, | |
2138 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2139 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2140 | }; |
2141 | ||
b35d266b | 2142 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2143 | { |
0112cd26 NC |
2144 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2145 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2146 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2147 | /* See struct bfd_elf_special_section declaration for the semantics of |
2148 | this special case where .prefix_length != strlen (.prefix). */ | |
2149 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
0112cd26 | 2150 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2151 | }; |
2152 | ||
b35d266b | 2153 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2154 | { |
0112cd26 NC |
2155 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2156 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2157 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2158 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2159 | }; |
2160 | ||
1b315056 CS |
2161 | static const struct bfd_elf_special_section special_sections_z[] = |
2162 | { | |
2163 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, | |
2164 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
2165 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2166 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2167 | { NULL, 0, 0, 0, 0 } | |
2168 | }; | |
2169 | ||
e4c93b56 | 2170 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2171 | { |
7f4d3958 | 2172 | special_sections_b, /* 'b' */ |
98ece1b3 | 2173 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2174 | special_sections_d, /* 'd' */ |
2175 | NULL, /* 'e' */ | |
2176 | special_sections_f, /* 'f' */ | |
2177 | special_sections_g, /* 'g' */ | |
2178 | special_sections_h, /* 'h' */ | |
2179 | special_sections_i, /* 'i' */ | |
2180 | NULL, /* 'j' */ | |
2181 | NULL, /* 'k' */ | |
2182 | special_sections_l, /* 'l' */ | |
2183 | NULL, /* 'm' */ | |
2184 | special_sections_n, /* 'n' */ | |
2185 | NULL, /* 'o' */ | |
2186 | special_sections_p, /* 'p' */ | |
2187 | NULL, /* 'q' */ | |
2188 | special_sections_r, /* 'r' */ | |
2189 | special_sections_s, /* 's' */ | |
2190 | special_sections_t, /* 't' */ | |
1b315056 CS |
2191 | NULL, /* 'u' */ |
2192 | NULL, /* 'v' */ | |
2193 | NULL, /* 'w' */ | |
2194 | NULL, /* 'x' */ | |
2195 | NULL, /* 'y' */ | |
2196 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2197 | }; |
2198 | ||
551b43fd AM |
2199 | const struct bfd_elf_special_section * |
2200 | _bfd_elf_get_special_section (const char *name, | |
2201 | const struct bfd_elf_special_section *spec, | |
2202 | unsigned int rela) | |
2f89ff8d L |
2203 | { |
2204 | int i; | |
7f4d3958 | 2205 | int len; |
7f4d3958 | 2206 | |
551b43fd | 2207 | len = strlen (name); |
7f4d3958 | 2208 | |
551b43fd | 2209 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2210 | { |
2211 | int suffix_len; | |
551b43fd | 2212 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2213 | |
2214 | if (len < prefix_len) | |
2215 | continue; | |
551b43fd | 2216 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2217 | continue; |
2218 | ||
551b43fd | 2219 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2220 | if (suffix_len <= 0) |
2221 | { | |
2222 | if (name[prefix_len] != 0) | |
2223 | { | |
2224 | if (suffix_len == 0) | |
2225 | continue; | |
2226 | if (name[prefix_len] != '.' | |
2227 | && (suffix_len == -2 | |
551b43fd | 2228 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2229 | continue; |
2230 | } | |
2231 | } | |
2232 | else | |
2233 | { | |
2234 | if (len < prefix_len + suffix_len) | |
2235 | continue; | |
2236 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2237 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2238 | suffix_len) != 0) |
2239 | continue; | |
2240 | } | |
551b43fd | 2241 | return &spec[i]; |
7dcb9820 | 2242 | } |
2f89ff8d L |
2243 | |
2244 | return NULL; | |
2245 | } | |
2246 | ||
7dcb9820 | 2247 | const struct bfd_elf_special_section * |
29ef7005 | 2248 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2249 | { |
551b43fd AM |
2250 | int i; |
2251 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2252 | const struct elf_backend_data *bed; |
2f89ff8d L |
2253 | |
2254 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2255 | if (sec->name == NULL) |
2256 | return NULL; | |
2f89ff8d | 2257 | |
29ef7005 L |
2258 | bed = get_elf_backend_data (abfd); |
2259 | spec = bed->special_sections; | |
2260 | if (spec) | |
2261 | { | |
2262 | spec = _bfd_elf_get_special_section (sec->name, | |
2263 | bed->special_sections, | |
2264 | sec->use_rela_p); | |
2265 | if (spec != NULL) | |
2266 | return spec; | |
2267 | } | |
2268 | ||
551b43fd AM |
2269 | if (sec->name[0] != '.') |
2270 | return NULL; | |
2f89ff8d | 2271 | |
551b43fd | 2272 | i = sec->name[1] - 'b'; |
1b315056 | 2273 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2274 | return NULL; |
2275 | ||
2276 | spec = special_sections[i]; | |
2f89ff8d | 2277 | |
551b43fd AM |
2278 | if (spec == NULL) |
2279 | return NULL; | |
2280 | ||
2281 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2282 | } |
2283 | ||
b34976b6 | 2284 | bfd_boolean |
217aa764 | 2285 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2286 | { |
2287 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2288 | const struct elf_backend_data *bed; |
7dcb9820 | 2289 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2290 | |
f0abc2a1 AM |
2291 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2292 | if (sdata == NULL) | |
2293 | { | |
a50b1753 NC |
2294 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
2295 | sizeof (*sdata)); | |
f0abc2a1 AM |
2296 | if (sdata == NULL) |
2297 | return FALSE; | |
217aa764 | 2298 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2299 | } |
bf572ba0 | 2300 | |
551b43fd AM |
2301 | /* Indicate whether or not this section should use RELA relocations. */ |
2302 | bed = get_elf_backend_data (abfd); | |
2303 | sec->use_rela_p = bed->default_use_rela_p; | |
2304 | ||
e843e0f8 L |
2305 | /* When we read a file, we don't need to set ELF section type and |
2306 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2307 | anyway. We will set ELF section type and flags for all linker | |
2308 | created sections. If user specifies BFD section flags, we will | |
2309 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2310 | elf_fake_sections. Special handling for .init_array/.fini_array |
2311 | output sections since they may contain .ctors/.dtors input | |
2312 | sections. We don't want _bfd_elf_init_private_section_data to | |
2313 | copy ELF section type from .ctors/.dtors input sections. */ | |
2314 | if (abfd->direction != read_direction | |
3496cb2a | 2315 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2316 | { |
551b43fd | 2317 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2318 | if (ssect != NULL |
2319 | && (!sec->flags | |
2320 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2321 | || ssect->type == SHT_INIT_ARRAY | |
2322 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2323 | { |
2324 | elf_section_type (sec) = ssect->type; | |
2325 | elf_section_flags (sec) = ssect->attr; | |
2326 | } | |
2f89ff8d L |
2327 | } |
2328 | ||
f592407e | 2329 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2330 | } |
2331 | ||
2332 | /* Create a new bfd section from an ELF program header. | |
2333 | ||
2334 | Since program segments have no names, we generate a synthetic name | |
2335 | of the form segment<NUM>, where NUM is generally the index in the | |
2336 | program header table. For segments that are split (see below) we | |
2337 | generate the names segment<NUM>a and segment<NUM>b. | |
2338 | ||
2339 | Note that some program segments may have a file size that is different than | |
2340 | (less than) the memory size. All this means is that at execution the | |
2341 | system must allocate the amount of memory specified by the memory size, | |
2342 | but only initialize it with the first "file size" bytes read from the | |
2343 | file. This would occur for example, with program segments consisting | |
2344 | of combined data+bss. | |
2345 | ||
2346 | To handle the above situation, this routine generates TWO bfd sections | |
2347 | for the single program segment. The first has the length specified by | |
2348 | the file size of the segment, and the second has the length specified | |
2349 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2350 | into its initialized and uninitialized parts. |
252b5132 RH |
2351 | |
2352 | */ | |
2353 | ||
b34976b6 | 2354 | bfd_boolean |
217aa764 AM |
2355 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2356 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2357 | int hdr_index, |
a50b1753 | 2358 | const char *type_name) |
252b5132 RH |
2359 | { |
2360 | asection *newsect; | |
2361 | char *name; | |
2362 | char namebuf[64]; | |
d4c88bbb | 2363 | size_t len; |
252b5132 RH |
2364 | int split; |
2365 | ||
2366 | split = ((hdr->p_memsz > 0) | |
2367 | && (hdr->p_filesz > 0) | |
2368 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2369 | |
2370 | if (hdr->p_filesz > 0) | |
252b5132 | 2371 | { |
91d6fa6a | 2372 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2373 | len = strlen (namebuf) + 1; |
a50b1753 | 2374 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2375 | if (!name) |
2376 | return FALSE; | |
2377 | memcpy (name, namebuf, len); | |
2378 | newsect = bfd_make_section (abfd, name); | |
2379 | if (newsect == NULL) | |
2380 | return FALSE; | |
2381 | newsect->vma = hdr->p_vaddr; | |
2382 | newsect->lma = hdr->p_paddr; | |
2383 | newsect->size = hdr->p_filesz; | |
2384 | newsect->filepos = hdr->p_offset; | |
2385 | newsect->flags |= SEC_HAS_CONTENTS; | |
2386 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2387 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2388 | { |
d5191d0c AM |
2389 | newsect->flags |= SEC_ALLOC; |
2390 | newsect->flags |= SEC_LOAD; | |
2391 | if (hdr->p_flags & PF_X) | |
2392 | { | |
2393 | /* FIXME: all we known is that it has execute PERMISSION, | |
2394 | may be data. */ | |
2395 | newsect->flags |= SEC_CODE; | |
2396 | } | |
2397 | } | |
2398 | if (!(hdr->p_flags & PF_W)) | |
2399 | { | |
2400 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2401 | } |
252b5132 RH |
2402 | } |
2403 | ||
d5191d0c | 2404 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2405 | { |
d5191d0c AM |
2406 | bfd_vma align; |
2407 | ||
91d6fa6a | 2408 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2409 | len = strlen (namebuf) + 1; |
a50b1753 | 2410 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2411 | if (!name) |
b34976b6 | 2412 | return FALSE; |
d4c88bbb | 2413 | memcpy (name, namebuf, len); |
252b5132 RH |
2414 | newsect = bfd_make_section (abfd, name); |
2415 | if (newsect == NULL) | |
b34976b6 | 2416 | return FALSE; |
252b5132 RH |
2417 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2418 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2419 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2420 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2421 | align = newsect->vma & -newsect->vma; | |
2422 | if (align == 0 || align > hdr->p_align) | |
2423 | align = hdr->p_align; | |
2424 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2425 | if (hdr->p_type == PT_LOAD) |
2426 | { | |
d5191d0c AM |
2427 | /* Hack for gdb. Segments that have not been modified do |
2428 | not have their contents written to a core file, on the | |
2429 | assumption that a debugger can find the contents in the | |
2430 | executable. We flag this case by setting the fake | |
2431 | section size to zero. Note that "real" bss sections will | |
2432 | always have their contents dumped to the core file. */ | |
2433 | if (bfd_get_format (abfd) == bfd_core) | |
2434 | newsect->size = 0; | |
252b5132 RH |
2435 | newsect->flags |= SEC_ALLOC; |
2436 | if (hdr->p_flags & PF_X) | |
2437 | newsect->flags |= SEC_CODE; | |
2438 | } | |
2439 | if (!(hdr->p_flags & PF_W)) | |
2440 | newsect->flags |= SEC_READONLY; | |
2441 | } | |
2442 | ||
b34976b6 | 2443 | return TRUE; |
252b5132 RH |
2444 | } |
2445 | ||
b34976b6 | 2446 | bfd_boolean |
91d6fa6a | 2447 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2448 | { |
9c5bfbb7 | 2449 | const struct elf_backend_data *bed; |
20cfcaae NC |
2450 | |
2451 | switch (hdr->p_type) | |
2452 | { | |
2453 | case PT_NULL: | |
91d6fa6a | 2454 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2455 | |
2456 | case PT_LOAD: | |
91d6fa6a | 2457 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2458 | |
2459 | case PT_DYNAMIC: | |
91d6fa6a | 2460 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
2461 | |
2462 | case PT_INTERP: | |
91d6fa6a | 2463 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
2464 | |
2465 | case PT_NOTE: | |
91d6fa6a | 2466 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 2467 | return FALSE; |
718175fa | 2468 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) |
b34976b6 AM |
2469 | return FALSE; |
2470 | return TRUE; | |
20cfcaae NC |
2471 | |
2472 | case PT_SHLIB: | |
91d6fa6a | 2473 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
2474 | |
2475 | case PT_PHDR: | |
91d6fa6a | 2476 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 2477 | |
811072d8 | 2478 | case PT_GNU_EH_FRAME: |
91d6fa6a | 2479 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
2480 | "eh_frame_hdr"); |
2481 | ||
2b05f1b7 | 2482 | case PT_GNU_STACK: |
91d6fa6a | 2483 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 2484 | |
8c37241b | 2485 | case PT_GNU_RELRO: |
91d6fa6a | 2486 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 2487 | |
20cfcaae | 2488 | default: |
8c1acd09 | 2489 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 2490 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 2491 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
2492 | } |
2493 | } | |
2494 | ||
d4730f92 BS |
2495 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
2496 | REL or RELA. */ | |
2497 | ||
2498 | Elf_Internal_Shdr * | |
2499 | _bfd_elf_single_rel_hdr (asection *sec) | |
2500 | { | |
2501 | if (elf_section_data (sec)->rel.hdr) | |
2502 | { | |
2503 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
2504 | return elf_section_data (sec)->rel.hdr; | |
2505 | } | |
2506 | else | |
2507 | return elf_section_data (sec)->rela.hdr; | |
2508 | } | |
2509 | ||
2510 | /* Allocate and initialize a section-header for a new reloc section, | |
2511 | containing relocations against ASECT. It is stored in RELDATA. If | |
2512 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
2513 | relocations. */ | |
23bc299b | 2514 | |
b34976b6 | 2515 | bfd_boolean |
217aa764 | 2516 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 2517 | struct bfd_elf_section_reloc_data *reldata, |
217aa764 AM |
2518 | asection *asect, |
2519 | bfd_boolean use_rela_p) | |
23bc299b | 2520 | { |
d4730f92 | 2521 | Elf_Internal_Shdr *rel_hdr; |
23bc299b | 2522 | char *name; |
9c5bfbb7 | 2523 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2524 | bfd_size_type amt; |
2525 | ||
2526 | amt = sizeof (Elf_Internal_Shdr); | |
2527 | BFD_ASSERT (reldata->hdr == NULL); | |
2528 | rel_hdr = bfd_zalloc (abfd, amt); | |
2529 | reldata->hdr = rel_hdr; | |
23bc299b | 2530 | |
d324f6d6 | 2531 | amt = sizeof ".rela" + strlen (asect->name); |
a50b1753 | 2532 | name = (char *) bfd_alloc (abfd, amt); |
23bc299b | 2533 | if (name == NULL) |
b34976b6 | 2534 | return FALSE; |
23bc299b MM |
2535 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); |
2536 | rel_hdr->sh_name = | |
2b0f7ef9 | 2537 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, |
b34976b6 | 2538 | FALSE); |
23bc299b | 2539 | if (rel_hdr->sh_name == (unsigned int) -1) |
b34976b6 | 2540 | return FALSE; |
23bc299b MM |
2541 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
2542 | rel_hdr->sh_entsize = (use_rela_p | |
2543 | ? bed->s->sizeof_rela | |
2544 | : bed->s->sizeof_rel); | |
72de5009 | 2545 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
23bc299b MM |
2546 | rel_hdr->sh_flags = 0; |
2547 | rel_hdr->sh_addr = 0; | |
2548 | rel_hdr->sh_size = 0; | |
2549 | rel_hdr->sh_offset = 0; | |
2550 | ||
b34976b6 | 2551 | return TRUE; |
23bc299b MM |
2552 | } |
2553 | ||
94be91de JB |
2554 | /* Return the default section type based on the passed in section flags. */ |
2555 | ||
2556 | int | |
2557 | bfd_elf_get_default_section_type (flagword flags) | |
2558 | { | |
2559 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 2560 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
2561 | return SHT_NOBITS; |
2562 | return SHT_PROGBITS; | |
2563 | } | |
2564 | ||
d4730f92 BS |
2565 | struct fake_section_arg |
2566 | { | |
2567 | struct bfd_link_info *link_info; | |
2568 | bfd_boolean failed; | |
2569 | }; | |
2570 | ||
252b5132 RH |
2571 | /* Set up an ELF internal section header for a section. */ |
2572 | ||
252b5132 | 2573 | static void |
d4730f92 | 2574 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 2575 | { |
d4730f92 | 2576 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 2577 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 2578 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 2579 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 2580 | unsigned int sh_type; |
252b5132 | 2581 | |
d4730f92 | 2582 | if (arg->failed) |
252b5132 RH |
2583 | { |
2584 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 2585 | loop. */ |
252b5132 RH |
2586 | return; |
2587 | } | |
2588 | ||
d4730f92 | 2589 | this_hdr = &esd->this_hdr; |
252b5132 | 2590 | |
e57b5356 AM |
2591 | this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
2592 | asect->name, FALSE); | |
2593 | if (this_hdr->sh_name == (unsigned int) -1) | |
252b5132 | 2594 | { |
d4730f92 | 2595 | arg->failed = TRUE; |
252b5132 RH |
2596 | return; |
2597 | } | |
2598 | ||
a4d8e49b | 2599 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
2600 | |
2601 | if ((asect->flags & SEC_ALLOC) != 0 | |
2602 | || asect->user_set_vma) | |
2603 | this_hdr->sh_addr = asect->vma; | |
2604 | else | |
2605 | this_hdr->sh_addr = 0; | |
2606 | ||
2607 | this_hdr->sh_offset = 0; | |
eea6121a | 2608 | this_hdr->sh_size = asect->size; |
252b5132 | 2609 | this_hdr->sh_link = 0; |
72de5009 | 2610 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
2611 | /* The sh_entsize and sh_info fields may have been set already by |
2612 | copy_private_section_data. */ | |
2613 | ||
2614 | this_hdr->bfd_section = asect; | |
2615 | this_hdr->contents = NULL; | |
2616 | ||
3cddba1e L |
2617 | /* If the section type is unspecified, we set it based on |
2618 | asect->flags. */ | |
98ece1b3 AM |
2619 | if ((asect->flags & SEC_GROUP) != 0) |
2620 | sh_type = SHT_GROUP; | |
98ece1b3 | 2621 | else |
94be91de | 2622 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 2623 | |
3cddba1e | 2624 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
2625 | this_hdr->sh_type = sh_type; |
2626 | else if (this_hdr->sh_type == SHT_NOBITS | |
2627 | && sh_type == SHT_PROGBITS | |
2628 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 2629 | { |
98ece1b3 AM |
2630 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
2631 | allow the link to proceed. This can happen when users link | |
2632 | non-bss input sections to bss output sections, or emit data | |
2633 | to a bss output section via a linker script. */ | |
2634 | (*_bfd_error_handler) | |
58f0869b | 2635 | (_("warning: section `%A' type changed to PROGBITS"), asect); |
98ece1b3 | 2636 | this_hdr->sh_type = sh_type; |
3cddba1e L |
2637 | } |
2638 | ||
2f89ff8d | 2639 | switch (this_hdr->sh_type) |
252b5132 | 2640 | { |
2f89ff8d | 2641 | default: |
2f89ff8d L |
2642 | break; |
2643 | ||
2644 | case SHT_STRTAB: | |
2645 | case SHT_INIT_ARRAY: | |
2646 | case SHT_FINI_ARRAY: | |
2647 | case SHT_PREINIT_ARRAY: | |
2648 | case SHT_NOTE: | |
2649 | case SHT_NOBITS: | |
2650 | case SHT_PROGBITS: | |
2651 | break; | |
2652 | ||
2653 | case SHT_HASH: | |
c7ac6ff8 | 2654 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 2655 | break; |
5de3bf90 | 2656 | |
2f89ff8d | 2657 | case SHT_DYNSYM: |
252b5132 | 2658 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
2659 | break; |
2660 | ||
2661 | case SHT_DYNAMIC: | |
252b5132 | 2662 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
2663 | break; |
2664 | ||
2665 | case SHT_RELA: | |
2666 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
2667 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2668 | break; | |
2669 | ||
2670 | case SHT_REL: | |
2671 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
2672 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2673 | break; | |
2674 | ||
2675 | case SHT_GNU_versym: | |
252b5132 | 2676 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
2677 | break; |
2678 | ||
2679 | case SHT_GNU_verdef: | |
252b5132 RH |
2680 | this_hdr->sh_entsize = 0; |
2681 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2682 | cverdefs. The linker will set cverdefs, but sh_info will be |
2683 | zero. */ | |
252b5132 RH |
2684 | if (this_hdr->sh_info == 0) |
2685 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2686 | else | |
2687 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
2688 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
2689 | break; |
2690 | ||
2691 | case SHT_GNU_verneed: | |
252b5132 RH |
2692 | this_hdr->sh_entsize = 0; |
2693 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2694 | cverrefs. The linker will set cverrefs, but sh_info will be |
2695 | zero. */ | |
252b5132 RH |
2696 | if (this_hdr->sh_info == 0) |
2697 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
2698 | else | |
2699 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
2700 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
2701 | break; |
2702 | ||
2703 | case SHT_GROUP: | |
1783205a | 2704 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 2705 | break; |
fdc90cb4 JJ |
2706 | |
2707 | case SHT_GNU_HASH: | |
2708 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
2709 | break; | |
dbb410c3 | 2710 | } |
252b5132 RH |
2711 | |
2712 | if ((asect->flags & SEC_ALLOC) != 0) | |
2713 | this_hdr->sh_flags |= SHF_ALLOC; | |
2714 | if ((asect->flags & SEC_READONLY) == 0) | |
2715 | this_hdr->sh_flags |= SHF_WRITE; | |
2716 | if ((asect->flags & SEC_CODE) != 0) | |
2717 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
2718 | if ((asect->flags & SEC_MERGE) != 0) |
2719 | { | |
2720 | this_hdr->sh_flags |= SHF_MERGE; | |
2721 | this_hdr->sh_entsize = asect->entsize; | |
2722 | if ((asect->flags & SEC_STRINGS) != 0) | |
2723 | this_hdr->sh_flags |= SHF_STRINGS; | |
2724 | } | |
1126897b | 2725 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 2726 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 2727 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
2728 | { |
2729 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
2730 | if (asect->size == 0 |
2731 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 2732 | { |
3a800eb9 | 2733 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 2734 | |
704afa60 | 2735 | this_hdr->sh_size = 0; |
3a800eb9 AM |
2736 | if (o != NULL) |
2737 | { | |
704afa60 | 2738 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
2739 | if (this_hdr->sh_size != 0) |
2740 | this_hdr->sh_type = SHT_NOBITS; | |
2741 | } | |
704afa60 JJ |
2742 | } |
2743 | } | |
18ae9cc1 L |
2744 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
2745 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 2746 | |
d4730f92 BS |
2747 | /* If the section has relocs, set up a section header for the |
2748 | SHT_REL[A] section. If two relocation sections are required for | |
2749 | this section, it is up to the processor-specific back-end to | |
2750 | create the other. */ | |
2751 | if ((asect->flags & SEC_RELOC) != 0) | |
2752 | { | |
2753 | /* When doing a relocatable link, create both REL and RELA sections if | |
2754 | needed. */ | |
2755 | if (arg->link_info | |
2756 | /* Do the normal setup if we wouldn't create any sections here. */ | |
2757 | && esd->rel.count + esd->rela.count > 0 | |
2758 | && (arg->link_info->relocatable || arg->link_info->emitrelocations)) | |
2759 | { | |
2760 | if (esd->rel.count && esd->rel.hdr == NULL | |
2761 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, asect, FALSE)) | |
2762 | { | |
2763 | arg->failed = TRUE; | |
2764 | return; | |
2765 | } | |
2766 | if (esd->rela.count && esd->rela.hdr == NULL | |
2767 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, asect, TRUE)) | |
2768 | { | |
2769 | arg->failed = TRUE; | |
2770 | return; | |
2771 | } | |
2772 | } | |
2773 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
2774 | (asect->use_rela_p | |
2775 | ? &esd->rela : &esd->rel), | |
2776 | asect, | |
2777 | asect->use_rela_p)) | |
2778 | arg->failed = TRUE; | |
2779 | } | |
2780 | ||
252b5132 | 2781 | /* Check for processor-specific section types. */ |
0414f35b | 2782 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
2783 | if (bed->elf_backend_fake_sections |
2784 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
d4730f92 | 2785 | arg->failed = TRUE; |
252b5132 | 2786 | |
42bb2e33 | 2787 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
2788 | { |
2789 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 2790 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
2791 | this_hdr->sh_type = sh_type; |
2792 | } | |
252b5132 RH |
2793 | } |
2794 | ||
bcacc0f5 AM |
2795 | /* Fill in the contents of a SHT_GROUP section. Called from |
2796 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
2797 | when ELF targets use the generic linker, ld. Called for ld -r | |
2798 | from bfd_elf_final_link. */ | |
dbb410c3 | 2799 | |
1126897b | 2800 | void |
217aa764 | 2801 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 2802 | { |
a50b1753 | 2803 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 2804 | asection *elt, *first; |
dbb410c3 | 2805 | unsigned char *loc; |
b34976b6 | 2806 | bfd_boolean gas; |
dbb410c3 | 2807 | |
7e4111ad L |
2808 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
2809 | elfxx-ia64.c. */ | |
2810 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
2811 | || *failedptr) |
2812 | return; | |
2813 | ||
bcacc0f5 AM |
2814 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
2815 | { | |
2816 | unsigned long symindx = 0; | |
2817 | ||
2818 | /* elf_group_id will have been set up by objcopy and the | |
2819 | generic linker. */ | |
2820 | if (elf_group_id (sec) != NULL) | |
2821 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 2822 | |
bcacc0f5 AM |
2823 | if (symindx == 0) |
2824 | { | |
2825 | /* If called from the assembler, swap_out_syms will have set up | |
2826 | elf_section_syms. */ | |
2827 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
2828 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
2829 | } | |
2830 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
2831 | } | |
2832 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 2833 | { |
bcacc0f5 AM |
2834 | /* The ELF backend linker sets sh_info to -2 when the group |
2835 | signature symbol is global, and thus the index can't be | |
2836 | set until all local symbols are output. */ | |
2837 | asection *igroup = elf_sec_group (elf_next_in_group (sec)); | |
2838 | struct bfd_elf_section_data *sec_data = elf_section_data (igroup); | |
2839 | unsigned long symndx = sec_data->this_hdr.sh_info; | |
2840 | unsigned long extsymoff = 0; | |
2841 | struct elf_link_hash_entry *h; | |
2842 | ||
2843 | if (!elf_bad_symtab (igroup->owner)) | |
2844 | { | |
2845 | Elf_Internal_Shdr *symtab_hdr; | |
2846 | ||
2847 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
2848 | extsymoff = symtab_hdr->sh_info; | |
2849 | } | |
2850 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
2851 | while (h->root.type == bfd_link_hash_indirect | |
2852 | || h->root.type == bfd_link_hash_warning) | |
2853 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2854 | ||
2855 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 2856 | } |
dbb410c3 | 2857 | |
1126897b | 2858 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 2859 | gas = TRUE; |
dbb410c3 AM |
2860 | if (sec->contents == NULL) |
2861 | { | |
b34976b6 | 2862 | gas = FALSE; |
a50b1753 | 2863 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
2864 | |
2865 | /* Arrange for the section to be written out. */ | |
2866 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
2867 | if (sec->contents == NULL) |
2868 | { | |
b34976b6 | 2869 | *failedptr = TRUE; |
dbb410c3 AM |
2870 | return; |
2871 | } | |
2872 | } | |
2873 | ||
eea6121a | 2874 | loc = sec->contents + sec->size; |
dbb410c3 | 2875 | |
9dce4196 AM |
2876 | /* Get the pointer to the first section in the group that gas |
2877 | squirreled away here. objcopy arranges for this to be set to the | |
2878 | start of the input section group. */ | |
2879 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
2880 | |
2881 | /* First element is a flag word. Rest of section is elf section | |
2882 | indices for all the sections of the group. Write them backwards | |
2883 | just to keep the group in the same order as given in .section | |
2884 | directives, not that it matters. */ | |
2885 | while (elt != NULL) | |
2886 | { | |
9dce4196 | 2887 | asection *s; |
9dce4196 | 2888 | |
9dce4196 | 2889 | s = elt; |
415f38a6 AM |
2890 | if (!gas) |
2891 | s = s->output_section; | |
2892 | if (s != NULL | |
2893 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 2894 | { |
415f38a6 AM |
2895 | unsigned int idx = elf_section_data (s)->this_idx; |
2896 | ||
01e1a5bc | 2897 | loc -= 4; |
01e1a5bc NC |
2898 | H_PUT_32 (abfd, idx, loc); |
2899 | } | |
945906ff | 2900 | elt = elf_next_in_group (elt); |
9dce4196 AM |
2901 | if (elt == first) |
2902 | break; | |
dbb410c3 AM |
2903 | } |
2904 | ||
3d7f7666 | 2905 | if ((loc -= 4) != sec->contents) |
9dce4196 | 2906 | abort (); |
dbb410c3 | 2907 | |
9dce4196 | 2908 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
2909 | } |
2910 | ||
252b5132 RH |
2911 | /* Assign all ELF section numbers. The dummy first section is handled here |
2912 | too. The link/info pointers for the standard section types are filled | |
2913 | in here too, while we're at it. */ | |
2914 | ||
b34976b6 | 2915 | static bfd_boolean |
da9f89d4 | 2916 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
2917 | { |
2918 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
2919 | asection *sec; | |
2b0f7ef9 | 2920 | unsigned int section_number, secn; |
252b5132 | 2921 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 2922 | struct bfd_elf_section_data *d; |
3516e984 | 2923 | bfd_boolean need_symtab; |
252b5132 RH |
2924 | |
2925 | section_number = 1; | |
2926 | ||
2b0f7ef9 JJ |
2927 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
2928 | ||
da9f89d4 L |
2929 | /* SHT_GROUP sections are in relocatable files only. */ |
2930 | if (link_info == NULL || link_info->relocatable) | |
252b5132 | 2931 | { |
da9f89d4 | 2932 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 2933 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 2934 | { |
5daa8fe7 | 2935 | d = elf_section_data (sec); |
da9f89d4 L |
2936 | |
2937 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 2938 | { |
5daa8fe7 | 2939 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
2940 | { |
2941 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 2942 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 2943 | abfd->section_count--; |
da9f89d4 | 2944 | } |
08a40648 | 2945 | else |
4fbb74a6 | 2946 | d->this_idx = section_number++; |
da9f89d4 | 2947 | } |
47cc2cf5 PB |
2948 | } |
2949 | } | |
2950 | ||
2951 | for (sec = abfd->sections; sec; sec = sec->next) | |
2952 | { | |
2953 | d = elf_section_data (sec); | |
2954 | ||
2955 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 2956 | d->this_idx = section_number++; |
2b0f7ef9 | 2957 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); |
d4730f92 | 2958 | if (d->rel.hdr) |
2b0f7ef9 | 2959 | { |
d4730f92 BS |
2960 | d->rel.idx = section_number++; |
2961 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 2962 | } |
d4730f92 BS |
2963 | else |
2964 | d->rel.idx = 0; | |
23bc299b | 2965 | |
d4730f92 | 2966 | if (d->rela.hdr) |
2b0f7ef9 | 2967 | { |
d4730f92 BS |
2968 | d->rela.idx = section_number++; |
2969 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 2970 | } |
23bc299b | 2971 | else |
d4730f92 | 2972 | d->rela.idx = 0; |
252b5132 RH |
2973 | } |
2974 | ||
2975 | t->shstrtab_section = section_number++; | |
2b0f7ef9 | 2976 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
252b5132 | 2977 | elf_elfheader (abfd)->e_shstrndx = t->shstrtab_section; |
252b5132 | 2978 | |
3516e984 L |
2979 | need_symtab = (bfd_get_symcount (abfd) > 0 |
2980 | || (link_info == NULL | |
2981 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
2982 | == HAS_RELOC))); | |
2983 | if (need_symtab) | |
252b5132 RH |
2984 | { |
2985 | t->symtab_section = section_number++; | |
2b0f7ef9 | 2986 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 2987 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 2988 | { |
9ad5cbcf AM |
2989 | t->symtab_shndx_section = section_number++; |
2990 | t->symtab_shndx_hdr.sh_name | |
2991 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
b34976b6 | 2992 | ".symtab_shndx", FALSE); |
9ad5cbcf | 2993 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 2994 | return FALSE; |
9ad5cbcf | 2995 | } |
252b5132 | 2996 | t->strtab_section = section_number++; |
2b0f7ef9 | 2997 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
2998 | } |
2999 | ||
1c52a645 L |
3000 | if (section_number >= SHN_LORESERVE) |
3001 | { | |
3002 | _bfd_error_handler (_("%B: too many sections: %u"), | |
3003 | abfd, section_number); | |
3004 | return FALSE; | |
3005 | } | |
3006 | ||
2b0f7ef9 JJ |
3007 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); |
3008 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
9ad5cbcf AM |
3009 | |
3010 | elf_numsections (abfd) = section_number; | |
252b5132 RH |
3011 | elf_elfheader (abfd)->e_shnum = section_number; |
3012 | ||
3013 | /* Set up the list of section header pointers, in agreement with the | |
3014 | indices. */ | |
a50b1753 NC |
3015 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
3016 | sizeof (Elf_Internal_Shdr *)); | |
252b5132 | 3017 | if (i_shdrp == NULL) |
b34976b6 | 3018 | return FALSE; |
252b5132 | 3019 | |
a50b1753 NC |
3020 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
3021 | sizeof (Elf_Internal_Shdr)); | |
252b5132 RH |
3022 | if (i_shdrp[0] == NULL) |
3023 | { | |
3024 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3025 | return FALSE; |
252b5132 | 3026 | } |
252b5132 RH |
3027 | |
3028 | elf_elfsections (abfd) = i_shdrp; | |
3029 | ||
3030 | i_shdrp[t->shstrtab_section] = &t->shstrtab_hdr; | |
3516e984 | 3031 | if (need_symtab) |
252b5132 RH |
3032 | { |
3033 | i_shdrp[t->symtab_section] = &t->symtab_hdr; | |
4fbb74a6 | 3034 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf AM |
3035 | { |
3036 | i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr; | |
3037 | t->symtab_shndx_hdr.sh_link = t->symtab_section; | |
3038 | } | |
252b5132 RH |
3039 | i_shdrp[t->strtab_section] = &t->strtab_hdr; |
3040 | t->symtab_hdr.sh_link = t->strtab_section; | |
3041 | } | |
38ce5b11 | 3042 | |
252b5132 RH |
3043 | for (sec = abfd->sections; sec; sec = sec->next) |
3044 | { | |
252b5132 RH |
3045 | asection *s; |
3046 | const char *name; | |
3047 | ||
91d6fa6a NC |
3048 | d = elf_section_data (sec); |
3049 | ||
252b5132 | 3050 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3051 | if (d->rel.idx != 0) |
3052 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3053 | if (d->rela.idx != 0) | |
3054 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3055 | |
3056 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3057 | ||
3058 | /* sh_link of a reloc section is the section index of the symbol | |
3059 | table. sh_info is the section index of the section to which | |
3060 | the relocation entries apply. */ | |
d4730f92 | 3061 | if (d->rel.idx != 0) |
252b5132 | 3062 | { |
d4730f92 BS |
3063 | d->rel.hdr->sh_link = t->symtab_section; |
3064 | d->rel.hdr->sh_info = d->this_idx; | |
252b5132 | 3065 | } |
d4730f92 | 3066 | if (d->rela.idx != 0) |
23bc299b | 3067 | { |
d4730f92 BS |
3068 | d->rela.hdr->sh_link = t->symtab_section; |
3069 | d->rela.hdr->sh_info = d->this_idx; | |
23bc299b | 3070 | } |
252b5132 | 3071 | |
38ce5b11 L |
3072 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3073 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3074 | { | |
3075 | s = elf_linked_to_section (sec); | |
3076 | if (s) | |
38ce5b11 | 3077 | { |
f2876037 | 3078 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3079 | if (link_info != NULL) |
38ce5b11 | 3080 | { |
f2876037 | 3081 | /* Check discarded linkonce section. */ |
dbaa2011 | 3082 | if (discarded_section (s)) |
38ce5b11 | 3083 | { |
ccd2ec6a L |
3084 | asection *kept; |
3085 | (*_bfd_error_handler) | |
3086 | (_("%B: sh_link of section `%A' points to discarded section `%A' of `%B'"), | |
3087 | abfd, d->this_hdr.bfd_section, | |
3088 | s, s->owner); | |
3089 | /* Point to the kept section if it has the same | |
3090 | size as the discarded one. */ | |
c0f00686 | 3091 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3092 | if (kept == NULL) |
185d09ad | 3093 | { |
ccd2ec6a L |
3094 | bfd_set_error (bfd_error_bad_value); |
3095 | return FALSE; | |
185d09ad | 3096 | } |
ccd2ec6a | 3097 | s = kept; |
38ce5b11 | 3098 | } |
e424ecc8 | 3099 | |
ccd2ec6a L |
3100 | s = s->output_section; |
3101 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3102 | } |
f2876037 L |
3103 | else |
3104 | { | |
3105 | /* Handle objcopy. */ | |
3106 | if (s->output_section == NULL) | |
3107 | { | |
3108 | (*_bfd_error_handler) | |
3109 | (_("%B: sh_link of section `%A' points to removed section `%A' of `%B'"), | |
3110 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3111 | bfd_set_error (bfd_error_bad_value); | |
3112 | return FALSE; | |
3113 | } | |
3114 | s = s->output_section; | |
3115 | } | |
ccd2ec6a L |
3116 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3117 | } | |
3118 | else | |
3119 | { | |
3120 | /* PR 290: | |
3121 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3122 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3123 | sh_info fields. Hence we could get the situation | |
08a40648 | 3124 | where s is NULL. */ |
ccd2ec6a L |
3125 | const struct elf_backend_data *bed |
3126 | = get_elf_backend_data (abfd); | |
3127 | if (bed->link_order_error_handler) | |
3128 | bed->link_order_error_handler | |
3129 | (_("%B: warning: sh_link not set for section `%A'"), | |
3130 | abfd, sec); | |
38ce5b11 L |
3131 | } |
3132 | } | |
3133 | ||
252b5132 RH |
3134 | switch (d->this_hdr.sh_type) |
3135 | { | |
3136 | case SHT_REL: | |
3137 | case SHT_RELA: | |
3138 | /* A reloc section which we are treating as a normal BFD | |
3139 | section. sh_link is the section index of the symbol | |
3140 | table. sh_info is the section index of the section to | |
3141 | which the relocation entries apply. We assume that an | |
3142 | allocated reloc section uses the dynamic symbol table. | |
3143 | FIXME: How can we be sure? */ | |
3144 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3145 | if (s != NULL) | |
3146 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3147 | ||
3148 | /* We look up the section the relocs apply to by name. */ | |
3149 | name = sec->name; | |
3150 | if (d->this_hdr.sh_type == SHT_REL) | |
3151 | name += 4; | |
3152 | else | |
3153 | name += 5; | |
3154 | s = bfd_get_section_by_name (abfd, name); | |
3155 | if (s != NULL) | |
3156 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3157 | break; | |
3158 | ||
3159 | case SHT_STRTAB: | |
3160 | /* We assume that a section named .stab*str is a stabs | |
3161 | string section. We look for a section with the same name | |
3162 | but without the trailing ``str'', and set its sh_link | |
3163 | field to point to this section. */ | |
0112cd26 | 3164 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3165 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3166 | { | |
3167 | size_t len; | |
3168 | char *alc; | |
3169 | ||
3170 | len = strlen (sec->name); | |
a50b1753 | 3171 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3172 | if (alc == NULL) |
b34976b6 | 3173 | return FALSE; |
d4c88bbb | 3174 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3175 | alc[len - 3] = '\0'; |
3176 | s = bfd_get_section_by_name (abfd, alc); | |
3177 | free (alc); | |
3178 | if (s != NULL) | |
3179 | { | |
3180 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3181 | ||
3182 | /* This is a .stab section. */ | |
0594c12d AM |
3183 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3184 | elf_section_data (s)->this_hdr.sh_entsize | |
3185 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3186 | } |
3187 | } | |
3188 | break; | |
3189 | ||
3190 | case SHT_DYNAMIC: | |
3191 | case SHT_DYNSYM: | |
3192 | case SHT_GNU_verneed: | |
3193 | case SHT_GNU_verdef: | |
3194 | /* sh_link is the section header index of the string table | |
3195 | used for the dynamic entries, or the symbol table, or the | |
3196 | version strings. */ | |
3197 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3198 | if (s != NULL) | |
3199 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3200 | break; | |
3201 | ||
7f1204bb JJ |
3202 | case SHT_GNU_LIBLIST: |
3203 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3204 | list used for the dynamic entries, or the symbol table, or |
3205 | the version strings. */ | |
7f1204bb JJ |
3206 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3207 | ? ".dynstr" : ".gnu.libstr"); | |
3208 | if (s != NULL) | |
3209 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3210 | break; | |
3211 | ||
252b5132 | 3212 | case SHT_HASH: |
fdc90cb4 | 3213 | case SHT_GNU_HASH: |
252b5132 RH |
3214 | case SHT_GNU_versym: |
3215 | /* sh_link is the section header index of the symbol table | |
3216 | this hash table or version table is for. */ | |
3217 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3218 | if (s != NULL) | |
3219 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3220 | break; | |
dbb410c3 AM |
3221 | |
3222 | case SHT_GROUP: | |
3223 | d->this_hdr.sh_link = t->symtab_section; | |
252b5132 RH |
3224 | } |
3225 | } | |
3226 | ||
2b0f7ef9 | 3227 | for (secn = 1; secn < section_number; ++secn) |
9ad5cbcf AM |
3228 | if (i_shdrp[secn] == NULL) |
3229 | i_shdrp[secn] = i_shdrp[0]; | |
3230 | else | |
3231 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
3232 | i_shdrp[secn]->sh_name); | |
b34976b6 | 3233 | return TRUE; |
252b5132 RH |
3234 | } |
3235 | ||
5372391b | 3236 | static bfd_boolean |
217aa764 | 3237 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3238 | { |
3239 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3240 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3241 | if (bed->elf_backend_sym_is_global) |
3242 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3243 | |
e47bf690 | 3244 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3245 | || bfd_is_und_section (bfd_get_section (sym)) |
3246 | || bfd_is_com_section (bfd_get_section (sym))); | |
3247 | } | |
3248 | ||
5372391b | 3249 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 3250 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
3251 | |
3252 | static bfd_boolean | |
3253 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
3254 | { | |
c6d8cab4 L |
3255 | elf_symbol_type *type_ptr; |
3256 | ||
3257 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3258 | return FALSE; | |
3259 | ||
3260 | type_ptr = elf_symbol_from (abfd, sym); | |
3261 | return ((type_ptr != NULL | |
3262 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
3263 | && bfd_is_abs_section (sym->section)) | |
3264 | || !(sym->section->owner == abfd | |
0f0a5e58 | 3265 | || (sym->section->output_section->owner == abfd |
2633a79c AM |
3266 | && sym->section->output_offset == 0) |
3267 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
3268 | } |
3269 | ||
2633a79c AM |
3270 | /* Map symbol from it's internal number to the external number, moving |
3271 | all local symbols to be at the head of the list. */ | |
3272 | ||
b34976b6 | 3273 | static bfd_boolean |
217aa764 | 3274 | elf_map_symbols (bfd *abfd) |
252b5132 | 3275 | { |
dc810e39 | 3276 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
3277 | asymbol **syms = bfd_get_outsymbols (abfd); |
3278 | asymbol **sect_syms; | |
dc810e39 AM |
3279 | unsigned int num_locals = 0; |
3280 | unsigned int num_globals = 0; | |
3281 | unsigned int num_locals2 = 0; | |
3282 | unsigned int num_globals2 = 0; | |
252b5132 | 3283 | int max_index = 0; |
dc810e39 | 3284 | unsigned int idx; |
252b5132 RH |
3285 | asection *asect; |
3286 | asymbol **new_syms; | |
252b5132 RH |
3287 | |
3288 | #ifdef DEBUG | |
3289 | fprintf (stderr, "elf_map_symbols\n"); | |
3290 | fflush (stderr); | |
3291 | #endif | |
3292 | ||
252b5132 RH |
3293 | for (asect = abfd->sections; asect; asect = asect->next) |
3294 | { | |
3295 | if (max_index < asect->index) | |
3296 | max_index = asect->index; | |
3297 | } | |
3298 | ||
3299 | max_index++; | |
a50b1753 | 3300 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 3301 | if (sect_syms == NULL) |
b34976b6 | 3302 | return FALSE; |
252b5132 | 3303 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 3304 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 3305 | |
079e9a2f AM |
3306 | /* Init sect_syms entries for any section symbols we have already |
3307 | decided to output. */ | |
252b5132 RH |
3308 | for (idx = 0; idx < symcount; idx++) |
3309 | { | |
dc810e39 | 3310 | asymbol *sym = syms[idx]; |
c044fabd | 3311 | |
252b5132 | 3312 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 3313 | && sym->value == 0 |
2633a79c AM |
3314 | && !ignore_section_sym (abfd, sym) |
3315 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 3316 | { |
5372391b | 3317 | asection *sec = sym->section; |
252b5132 | 3318 | |
5372391b AM |
3319 | if (sec->owner != abfd) |
3320 | sec = sec->output_section; | |
252b5132 | 3321 | |
5372391b | 3322 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
3323 | } |
3324 | } | |
3325 | ||
252b5132 RH |
3326 | /* Classify all of the symbols. */ |
3327 | for (idx = 0; idx < symcount; idx++) | |
3328 | { | |
2633a79c | 3329 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 3330 | num_globals++; |
2633a79c AM |
3331 | else if (!ignore_section_sym (abfd, syms[idx])) |
3332 | num_locals++; | |
252b5132 | 3333 | } |
079e9a2f | 3334 | |
5372391b | 3335 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
3336 | sections will already have a section symbol in outsymbols, but |
3337 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
3338 | at least in that case. */ | |
252b5132 RH |
3339 | for (asect = abfd->sections; asect; asect = asect->next) |
3340 | { | |
079e9a2f | 3341 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3342 | { |
079e9a2f | 3343 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
3344 | num_locals++; |
3345 | else | |
3346 | num_globals++; | |
252b5132 RH |
3347 | } |
3348 | } | |
3349 | ||
3350 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 NC |
3351 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
3352 | sizeof (asymbol *)); | |
dc810e39 | 3353 | |
252b5132 | 3354 | if (new_syms == NULL) |
b34976b6 | 3355 | return FALSE; |
252b5132 RH |
3356 | |
3357 | for (idx = 0; idx < symcount; idx++) | |
3358 | { | |
3359 | asymbol *sym = syms[idx]; | |
dc810e39 | 3360 | unsigned int i; |
252b5132 | 3361 | |
2633a79c AM |
3362 | if (sym_is_global (abfd, sym)) |
3363 | i = num_locals + num_globals2++; | |
3364 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
3365 | i = num_locals2++; |
3366 | else | |
2633a79c | 3367 | continue; |
252b5132 RH |
3368 | new_syms[i] = sym; |
3369 | sym->udata.i = i + 1; | |
3370 | } | |
3371 | for (asect = abfd->sections; asect; asect = asect->next) | |
3372 | { | |
079e9a2f | 3373 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3374 | { |
079e9a2f | 3375 | asymbol *sym = asect->symbol; |
dc810e39 | 3376 | unsigned int i; |
252b5132 | 3377 | |
079e9a2f | 3378 | sect_syms[asect->index] = sym; |
252b5132 RH |
3379 | if (!sym_is_global (abfd, sym)) |
3380 | i = num_locals2++; | |
3381 | else | |
3382 | i = num_locals + num_globals2++; | |
3383 | new_syms[i] = sym; | |
3384 | sym->udata.i = i + 1; | |
3385 | } | |
3386 | } | |
3387 | ||
3388 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
3389 | ||
3390 | elf_num_locals (abfd) = num_locals; | |
3391 | elf_num_globals (abfd) = num_globals; | |
b34976b6 | 3392 | return TRUE; |
252b5132 RH |
3393 | } |
3394 | ||
3395 | /* Align to the maximum file alignment that could be required for any | |
3396 | ELF data structure. */ | |
3397 | ||
268b6b39 | 3398 | static inline file_ptr |
217aa764 | 3399 | align_file_position (file_ptr off, int align) |
252b5132 RH |
3400 | { |
3401 | return (off + align - 1) & ~(align - 1); | |
3402 | } | |
3403 | ||
3404 | /* Assign a file position to a section, optionally aligning to the | |
3405 | required section alignment. */ | |
3406 | ||
217aa764 AM |
3407 | file_ptr |
3408 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
3409 | file_ptr offset, | |
3410 | bfd_boolean align) | |
252b5132 | 3411 | { |
72de5009 AM |
3412 | if (align && i_shdrp->sh_addralign > 1) |
3413 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
3414 | i_shdrp->sh_offset = offset; |
3415 | if (i_shdrp->bfd_section != NULL) | |
3416 | i_shdrp->bfd_section->filepos = offset; | |
3417 | if (i_shdrp->sh_type != SHT_NOBITS) | |
3418 | offset += i_shdrp->sh_size; | |
3419 | return offset; | |
3420 | } | |
3421 | ||
3422 | /* Compute the file positions we are going to put the sections at, and | |
3423 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
3424 | is not NULL, this is being called by the ELF backend linker. */ | |
3425 | ||
b34976b6 | 3426 | bfd_boolean |
217aa764 AM |
3427 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
3428 | struct bfd_link_info *link_info) | |
252b5132 | 3429 | { |
9c5bfbb7 | 3430 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3431 | struct fake_section_arg fsargs; |
b34976b6 | 3432 | bfd_boolean failed; |
4b6c0f2f | 3433 | struct bfd_strtab_hash *strtab = NULL; |
252b5132 | 3434 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 3435 | bfd_boolean need_symtab; |
252b5132 RH |
3436 | |
3437 | if (abfd->output_has_begun) | |
b34976b6 | 3438 | return TRUE; |
252b5132 RH |
3439 | |
3440 | /* Do any elf backend specific processing first. */ | |
3441 | if (bed->elf_backend_begin_write_processing) | |
3442 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
3443 | ||
3444 | if (! prep_headers (abfd)) | |
b34976b6 | 3445 | return FALSE; |
252b5132 | 3446 | |
e6c51ed4 NC |
3447 | /* Post process the headers if necessary. */ |
3448 | if (bed->elf_backend_post_process_headers) | |
3449 | (*bed->elf_backend_post_process_headers) (abfd, link_info); | |
3450 | ||
d4730f92 BS |
3451 | fsargs.failed = FALSE; |
3452 | fsargs.link_info = link_info; | |
3453 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
3454 | if (fsargs.failed) | |
b34976b6 | 3455 | return FALSE; |
252b5132 | 3456 | |
da9f89d4 | 3457 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 3458 | return FALSE; |
252b5132 RH |
3459 | |
3460 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
3461 | need_symtab = (link_info == NULL |
3462 | && (bfd_get_symcount (abfd) > 0 | |
3463 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3464 | == HAS_RELOC))); | |
3465 | if (need_symtab) | |
252b5132 RH |
3466 | { |
3467 | /* Non-zero if doing a relocatable link. */ | |
3468 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
3469 | ||
3470 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 3471 | return FALSE; |
252b5132 RH |
3472 | } |
3473 | ||
d4730f92 | 3474 | failed = FALSE; |
1126897b | 3475 | if (link_info == NULL) |
dbb410c3 | 3476 | { |
1126897b | 3477 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 3478 | if (failed) |
b34976b6 | 3479 | return FALSE; |
dbb410c3 AM |
3480 | } |
3481 | ||
252b5132 RH |
3482 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
3483 | /* sh_name was set in prep_headers. */ | |
3484 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
3485 | shstrtab_hdr->sh_flags = 0; | |
3486 | shstrtab_hdr->sh_addr = 0; | |
2b0f7ef9 | 3487 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); |
252b5132 RH |
3488 | shstrtab_hdr->sh_entsize = 0; |
3489 | shstrtab_hdr->sh_link = 0; | |
3490 | shstrtab_hdr->sh_info = 0; | |
3491 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |
3492 | shstrtab_hdr->sh_addralign = 1; | |
3493 | ||
c84fca4d | 3494 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 3495 | return FALSE; |
252b5132 | 3496 | |
3516e984 | 3497 | if (need_symtab) |
252b5132 RH |
3498 | { |
3499 | file_ptr off; | |
3500 | Elf_Internal_Shdr *hdr; | |
3501 | ||
3502 | off = elf_tdata (abfd)->next_file_pos; | |
3503 | ||
3504 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
b34976b6 | 3505 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3506 | |
9ad5cbcf AM |
3507 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
3508 | if (hdr->sh_size != 0) | |
b34976b6 | 3509 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf | 3510 | |
252b5132 | 3511 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 3512 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 RH |
3513 | |
3514 | elf_tdata (abfd)->next_file_pos = off; | |
3515 | ||
3516 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 3517 | out. */ |
252b5132 RH |
3518 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
3519 | || ! _bfd_stringtab_emit (abfd, strtab)) | |
b34976b6 | 3520 | return FALSE; |
252b5132 RH |
3521 | _bfd_stringtab_free (strtab); |
3522 | } | |
3523 | ||
b34976b6 | 3524 | abfd->output_has_begun = TRUE; |
252b5132 | 3525 | |
b34976b6 | 3526 | return TRUE; |
252b5132 RH |
3527 | } |
3528 | ||
8ded5a0f AM |
3529 | /* Make an initial estimate of the size of the program header. If we |
3530 | get the number wrong here, we'll redo section placement. */ | |
3531 | ||
3532 | static bfd_size_type | |
3533 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
3534 | { | |
3535 | size_t segs; | |
3536 | asection *s; | |
2b05f1b7 | 3537 | const struct elf_backend_data *bed; |
8ded5a0f AM |
3538 | |
3539 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
3540 | and one for data. */ | |
3541 | segs = 2; | |
3542 | ||
3543 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3544 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3545 | { | |
3546 | /* If we have a loadable interpreter section, we need a | |
3547 | PT_INTERP segment. In this case, assume we also need a | |
3548 | PT_PHDR segment, although that may not be true for all | |
3549 | targets. */ | |
3550 | segs += 2; | |
3551 | } | |
3552 | ||
3553 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
3554 | { | |
3555 | /* We need a PT_DYNAMIC segment. */ | |
3556 | ++segs; | |
f210dcff | 3557 | } |
08a40648 | 3558 | |
ceae84aa | 3559 | if (info != NULL && info->relro) |
f210dcff L |
3560 | { |
3561 | /* We need a PT_GNU_RELRO segment. */ | |
3562 | ++segs; | |
8ded5a0f AM |
3563 | } |
3564 | ||
3565 | if (elf_tdata (abfd)->eh_frame_hdr) | |
3566 | { | |
3567 | /* We need a PT_GNU_EH_FRAME segment. */ | |
3568 | ++segs; | |
3569 | } | |
3570 | ||
2b05f1b7 | 3571 | if (elf_tdata (abfd)->stack_flags) |
8ded5a0f | 3572 | { |
2b05f1b7 L |
3573 | /* We need a PT_GNU_STACK segment. */ |
3574 | ++segs; | |
3575 | } | |
94b11780 | 3576 | |
2b05f1b7 L |
3577 | for (s = abfd->sections; s != NULL; s = s->next) |
3578 | { | |
8ded5a0f | 3579 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 3580 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
3581 | { |
3582 | /* We need a PT_NOTE segment. */ | |
3583 | ++segs; | |
1c5265b5 JJ |
3584 | /* Try to create just one PT_NOTE segment |
3585 | for all adjacent loadable .note* sections. | |
3586 | gABI requires that within a PT_NOTE segment | |
3587 | (and also inside of each SHT_NOTE section) | |
3588 | each note is padded to a multiple of 4 size, | |
3589 | so we check whether the sections are correctly | |
3590 | aligned. */ | |
3591 | if (s->alignment_power == 2) | |
3592 | while (s->next != NULL | |
3593 | && s->next->alignment_power == 2 | |
3594 | && (s->next->flags & SEC_LOAD) != 0 | |
3595 | && CONST_STRNEQ (s->next->name, ".note")) | |
3596 | s = s->next; | |
8ded5a0f AM |
3597 | } |
3598 | } | |
3599 | ||
3600 | for (s = abfd->sections; s != NULL; s = s->next) | |
3601 | { | |
3602 | if (s->flags & SEC_THREAD_LOCAL) | |
3603 | { | |
3604 | /* We need a PT_TLS segment. */ | |
3605 | ++segs; | |
3606 | break; | |
3607 | } | |
3608 | } | |
3609 | ||
3610 | /* Let the backend count up any program headers it might need. */ | |
2b05f1b7 | 3611 | bed = get_elf_backend_data (abfd); |
8ded5a0f AM |
3612 | if (bed->elf_backend_additional_program_headers) |
3613 | { | |
3614 | int a; | |
3615 | ||
3616 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
3617 | if (a == -1) | |
3618 | abort (); | |
3619 | segs += a; | |
3620 | } | |
3621 | ||
3622 | return segs * bed->s->sizeof_phdr; | |
3623 | } | |
3624 | ||
2ea37f1c NC |
3625 | /* Find the segment that contains the output_section of section. */ |
3626 | ||
3627 | Elf_Internal_Phdr * | |
3628 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
3629 | { | |
3630 | struct elf_segment_map *m; | |
3631 | Elf_Internal_Phdr *p; | |
3632 | ||
3633 | for (m = elf_tdata (abfd)->segment_map, | |
3634 | p = elf_tdata (abfd)->phdr; | |
3635 | m != NULL; | |
3636 | m = m->next, p++) | |
3637 | { | |
3638 | int i; | |
3639 | ||
3640 | for (i = m->count - 1; i >= 0; i--) | |
3641 | if (m->sections[i] == section) | |
3642 | return p; | |
3643 | } | |
3644 | ||
3645 | return NULL; | |
3646 | } | |
3647 | ||
252b5132 RH |
3648 | /* Create a mapping from a set of sections to a program segment. */ |
3649 | ||
217aa764 AM |
3650 | static struct elf_segment_map * |
3651 | make_mapping (bfd *abfd, | |
3652 | asection **sections, | |
3653 | unsigned int from, | |
3654 | unsigned int to, | |
3655 | bfd_boolean phdr) | |
252b5132 RH |
3656 | { |
3657 | struct elf_segment_map *m; | |
3658 | unsigned int i; | |
3659 | asection **hdrpp; | |
dc810e39 | 3660 | bfd_size_type amt; |
252b5132 | 3661 | |
dc810e39 AM |
3662 | amt = sizeof (struct elf_segment_map); |
3663 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 3664 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
3665 | if (m == NULL) |
3666 | return NULL; | |
3667 | m->next = NULL; | |
3668 | m->p_type = PT_LOAD; | |
3669 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
3670 | m->sections[i - from] = *hdrpp; | |
3671 | m->count = to - from; | |
3672 | ||
3673 | if (from == 0 && phdr) | |
3674 | { | |
3675 | /* Include the headers in the first PT_LOAD segment. */ | |
3676 | m->includes_filehdr = 1; | |
3677 | m->includes_phdrs = 1; | |
3678 | } | |
3679 | ||
3680 | return m; | |
3681 | } | |
3682 | ||
229fcec5 MM |
3683 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
3684 | on failure. */ | |
3685 | ||
3686 | struct elf_segment_map * | |
3687 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
3688 | { | |
3689 | struct elf_segment_map *m; | |
3690 | ||
a50b1753 NC |
3691 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
3692 | sizeof (struct elf_segment_map)); | |
229fcec5 MM |
3693 | if (m == NULL) |
3694 | return NULL; | |
3695 | m->next = NULL; | |
3696 | m->p_type = PT_DYNAMIC; | |
3697 | m->count = 1; | |
3698 | m->sections[0] = dynsec; | |
08a40648 | 3699 | |
229fcec5 MM |
3700 | return m; |
3701 | } | |
3702 | ||
8ded5a0f | 3703 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 3704 | |
b34976b6 | 3705 | static bfd_boolean |
3dea8fca AM |
3706 | elf_modify_segment_map (bfd *abfd, |
3707 | struct bfd_link_info *info, | |
3708 | bfd_boolean remove_empty_load) | |
252b5132 | 3709 | { |
252e386e | 3710 | struct elf_segment_map **m; |
8ded5a0f | 3711 | const struct elf_backend_data *bed; |
252b5132 | 3712 | |
8ded5a0f AM |
3713 | /* The placement algorithm assumes that non allocated sections are |
3714 | not in PT_LOAD segments. We ensure this here by removing such | |
3715 | sections from the segment map. We also remove excluded | |
252e386e AM |
3716 | sections. Finally, any PT_LOAD segment without sections is |
3717 | removed. */ | |
3718 | m = &elf_tdata (abfd)->segment_map; | |
3719 | while (*m) | |
8ded5a0f AM |
3720 | { |
3721 | unsigned int i, new_count; | |
252b5132 | 3722 | |
252e386e | 3723 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 3724 | { |
252e386e AM |
3725 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
3726 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
3727 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 3728 | { |
252e386e AM |
3729 | (*m)->sections[new_count] = (*m)->sections[i]; |
3730 | new_count++; | |
8ded5a0f AM |
3731 | } |
3732 | } | |
252e386e | 3733 | (*m)->count = new_count; |
252b5132 | 3734 | |
3dea8fca | 3735 | if (remove_empty_load && (*m)->p_type == PT_LOAD && (*m)->count == 0) |
252e386e AM |
3736 | *m = (*m)->next; |
3737 | else | |
3738 | m = &(*m)->next; | |
8ded5a0f | 3739 | } |
252b5132 | 3740 | |
8ded5a0f AM |
3741 | bed = get_elf_backend_data (abfd); |
3742 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 3743 | { |
252e386e | 3744 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 3745 | return FALSE; |
252b5132 | 3746 | } |
252b5132 | 3747 | |
8ded5a0f AM |
3748 | return TRUE; |
3749 | } | |
252b5132 | 3750 | |
8ded5a0f | 3751 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 3752 | |
8ded5a0f AM |
3753 | bfd_boolean |
3754 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
3755 | { | |
3756 | unsigned int count; | |
3757 | struct elf_segment_map *m; | |
3758 | asection **sections = NULL; | |
3759 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 3760 | bfd_boolean no_user_phdrs; |
252b5132 | 3761 | |
3dea8fca | 3762 | no_user_phdrs = elf_tdata (abfd)->segment_map == NULL; |
d324f6d6 RM |
3763 | |
3764 | if (info != NULL) | |
3765 | info->user_phdrs = !no_user_phdrs; | |
3766 | ||
3dea8fca | 3767 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 3768 | { |
8ded5a0f AM |
3769 | asection *s; |
3770 | unsigned int i; | |
3771 | struct elf_segment_map *mfirst; | |
3772 | struct elf_segment_map **pm; | |
3773 | asection *last_hdr; | |
3774 | bfd_vma last_size; | |
3775 | unsigned int phdr_index; | |
3776 | bfd_vma maxpagesize; | |
3777 | asection **hdrpp; | |
3778 | bfd_boolean phdr_in_segment = TRUE; | |
3779 | bfd_boolean writable; | |
3780 | int tls_count = 0; | |
3781 | asection *first_tls = NULL; | |
3782 | asection *dynsec, *eh_frame_hdr; | |
3783 | bfd_size_type amt; | |
8d06853e | 3784 | bfd_vma addr_mask, wrap_to = 0; |
252b5132 | 3785 | |
8ded5a0f | 3786 | /* Select the allocated sections, and sort them. */ |
252b5132 | 3787 | |
a50b1753 NC |
3788 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
3789 | sizeof (asection *)); | |
8ded5a0f | 3790 | if (sections == NULL) |
252b5132 | 3791 | goto error_return; |
252b5132 | 3792 | |
8d06853e AM |
3793 | /* Calculate top address, avoiding undefined behaviour of shift |
3794 | left operator when shift count is equal to size of type | |
3795 | being shifted. */ | |
3796 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
3797 | addr_mask = (addr_mask << 1) + 1; | |
3798 | ||
8ded5a0f AM |
3799 | i = 0; |
3800 | for (s = abfd->sections; s != NULL; s = s->next) | |
3801 | { | |
3802 | if ((s->flags & SEC_ALLOC) != 0) | |
3803 | { | |
3804 | sections[i] = s; | |
3805 | ++i; | |
8d06853e AM |
3806 | /* A wrapping section potentially clashes with header. */ |
3807 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
3808 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
3809 | } |
3810 | } | |
3811 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
3812 | count = i; | |
252b5132 | 3813 | |
8ded5a0f | 3814 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 3815 | |
8ded5a0f | 3816 | /* Build the mapping. */ |
252b5132 | 3817 | |
8ded5a0f AM |
3818 | mfirst = NULL; |
3819 | pm = &mfirst; | |
252b5132 | 3820 | |
8ded5a0f AM |
3821 | /* If we have a .interp section, then create a PT_PHDR segment for |
3822 | the program headers and a PT_INTERP segment for the .interp | |
3823 | section. */ | |
3824 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3825 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3826 | { | |
3827 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 3828 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3829 | if (m == NULL) |
3830 | goto error_return; | |
3831 | m->next = NULL; | |
3832 | m->p_type = PT_PHDR; | |
3833 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
3834 | m->p_flags = PF_R | PF_X; | |
3835 | m->p_flags_valid = 1; | |
3836 | m->includes_phdrs = 1; | |
252b5132 | 3837 | |
8ded5a0f AM |
3838 | *pm = m; |
3839 | pm = &m->next; | |
252b5132 | 3840 | |
8ded5a0f | 3841 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 3842 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3843 | if (m == NULL) |
3844 | goto error_return; | |
3845 | m->next = NULL; | |
3846 | m->p_type = PT_INTERP; | |
3847 | m->count = 1; | |
3848 | m->sections[0] = s; | |
3849 | ||
3850 | *pm = m; | |
3851 | pm = &m->next; | |
252b5132 | 3852 | } |
8ded5a0f AM |
3853 | |
3854 | /* Look through the sections. We put sections in the same program | |
3855 | segment when the start of the second section can be placed within | |
3856 | a few bytes of the end of the first section. */ | |
3857 | last_hdr = NULL; | |
3858 | last_size = 0; | |
3859 | phdr_index = 0; | |
3860 | maxpagesize = bed->maxpagesize; | |
3861 | writable = FALSE; | |
3862 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
3863 | if (dynsec != NULL | |
3864 | && (dynsec->flags & SEC_LOAD) == 0) | |
3865 | dynsec = NULL; | |
3866 | ||
3867 | /* Deal with -Ttext or something similar such that the first section | |
3868 | is not adjacent to the program headers. This is an | |
3869 | approximation, since at this point we don't know exactly how many | |
3870 | program headers we will need. */ | |
3871 | if (count > 0) | |
252b5132 | 3872 | { |
8ded5a0f AM |
3873 | bfd_size_type phdr_size = elf_tdata (abfd)->program_header_size; |
3874 | ||
62d7a5f6 | 3875 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 3876 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 3877 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 3878 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
3879 | || (sections[0]->lma & addr_mask) < phdr_size |
3880 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
3881 | < phdr_size % maxpagesize) | |
3882 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
8ded5a0f | 3883 | phdr_in_segment = FALSE; |
252b5132 RH |
3884 | } |
3885 | ||
8ded5a0f | 3886 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 3887 | { |
8ded5a0f AM |
3888 | asection *hdr; |
3889 | bfd_boolean new_segment; | |
3890 | ||
3891 | hdr = *hdrpp; | |
3892 | ||
3893 | /* See if this section and the last one will fit in the same | |
3894 | segment. */ | |
3895 | ||
3896 | if (last_hdr == NULL) | |
3897 | { | |
3898 | /* If we don't have a segment yet, then we don't need a new | |
3899 | one (we build the last one after this loop). */ | |
3900 | new_segment = FALSE; | |
3901 | } | |
3902 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
3903 | { | |
3904 | /* If this section has a different relation between the | |
3905 | virtual address and the load address, then we need a new | |
3906 | segment. */ | |
3907 | new_segment = TRUE; | |
3908 | } | |
b5599592 AM |
3909 | else if (hdr->lma < last_hdr->lma + last_size |
3910 | || last_hdr->lma + last_size < last_hdr->lma) | |
3911 | { | |
3912 | /* If this section has a load address that makes it overlap | |
3913 | the previous section, then we need a new segment. */ | |
3914 | new_segment = TRUE; | |
3915 | } | |
39948a60 NC |
3916 | /* In the next test we have to be careful when last_hdr->lma is close |
3917 | to the end of the address space. If the aligned address wraps | |
3918 | around to the start of the address space, then there are no more | |
3919 | pages left in memory and it is OK to assume that the current | |
3920 | section can be included in the current segment. */ | |
3921 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
3922 | > last_hdr->lma) | |
3923 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4ff73856 | 3924 | <= hdr->lma)) |
8ded5a0f AM |
3925 | { |
3926 | /* If putting this section in this segment would force us to | |
3927 | skip a page in the segment, then we need a new segment. */ | |
3928 | new_segment = TRUE; | |
3929 | } | |
3930 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
3931 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) | |
3932 | { | |
3933 | /* We don't want to put a loadable section after a | |
3934 | nonloadable section in the same segment. | |
3935 | Consider .tbss sections as loadable for this purpose. */ | |
3936 | new_segment = TRUE; | |
3937 | } | |
3938 | else if ((abfd->flags & D_PAGED) == 0) | |
3939 | { | |
3940 | /* If the file is not demand paged, which means that we | |
3941 | don't require the sections to be correctly aligned in the | |
3942 | file, then there is no other reason for a new segment. */ | |
3943 | new_segment = FALSE; | |
3944 | } | |
3945 | else if (! writable | |
3946 | && (hdr->flags & SEC_READONLY) == 0 | |
8d06853e AM |
3947 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) |
3948 | != (hdr->lma & -maxpagesize))) | |
8ded5a0f AM |
3949 | { |
3950 | /* We don't want to put a writable section in a read only | |
3951 | segment, unless they are on the same page in memory | |
3952 | anyhow. We already know that the last section does not | |
3953 | bring us past the current section on the page, so the | |
3954 | only case in which the new section is not on the same | |
3955 | page as the previous section is when the previous section | |
3956 | ends precisely on a page boundary. */ | |
3957 | new_segment = TRUE; | |
3958 | } | |
3959 | else | |
3960 | { | |
3961 | /* Otherwise, we can use the same segment. */ | |
3962 | new_segment = FALSE; | |
3963 | } | |
3964 | ||
2889e75b | 3965 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
3966 | if (last_hdr != NULL |
3967 | && info != NULL | |
3968 | && info->callbacks->override_segment_assignment != NULL) | |
3969 | new_segment | |
3970 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
3971 | last_hdr, | |
3972 | new_segment); | |
2889e75b | 3973 | |
8ded5a0f AM |
3974 | if (! new_segment) |
3975 | { | |
3976 | if ((hdr->flags & SEC_READONLY) == 0) | |
3977 | writable = TRUE; | |
3978 | last_hdr = hdr; | |
3979 | /* .tbss sections effectively have zero size. */ | |
3980 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
3981 | != SEC_THREAD_LOCAL) | |
3982 | last_size = hdr->size; | |
3983 | else | |
3984 | last_size = 0; | |
3985 | continue; | |
3986 | } | |
3987 | ||
3988 | /* We need a new program segment. We must create a new program | |
3989 | header holding all the sections from phdr_index until hdr. */ | |
3990 | ||
3991 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
3992 | if (m == NULL) | |
3993 | goto error_return; | |
3994 | ||
3995 | *pm = m; | |
3996 | pm = &m->next; | |
3997 | ||
252b5132 | 3998 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 3999 | writable = TRUE; |
8ded5a0f AM |
4000 | else |
4001 | writable = FALSE; | |
4002 | ||
baaff79e JJ |
4003 | last_hdr = hdr; |
4004 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 4005 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 4006 | last_size = hdr->size; |
baaff79e JJ |
4007 | else |
4008 | last_size = 0; | |
8ded5a0f AM |
4009 | phdr_index = i; |
4010 | phdr_in_segment = FALSE; | |
252b5132 RH |
4011 | } |
4012 | ||
86b2281f AM |
4013 | /* Create a final PT_LOAD program segment, but not if it's just |
4014 | for .tbss. */ | |
4015 | if (last_hdr != NULL | |
4016 | && (i - phdr_index != 1 | |
4017 | || ((last_hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4018 | != SEC_THREAD_LOCAL))) | |
8ded5a0f AM |
4019 | { |
4020 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4021 | if (m == NULL) | |
4022 | goto error_return; | |
252b5132 | 4023 | |
8ded5a0f AM |
4024 | *pm = m; |
4025 | pm = &m->next; | |
4026 | } | |
252b5132 | 4027 | |
8ded5a0f AM |
4028 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4029 | if (dynsec != NULL) | |
4030 | { | |
4031 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4032 | if (m == NULL) | |
4033 | goto error_return; | |
4034 | *pm = m; | |
4035 | pm = &m->next; | |
4036 | } | |
252b5132 | 4037 | |
1c5265b5 JJ |
4038 | /* For each batch of consecutive loadable .note sections, |
4039 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4040 | because if we link together nonloadable .note sections and | |
4041 | loadable .note sections, we will generate two .note sections | |
4042 | in the output file. FIXME: Using names for section types is | |
4043 | bogus anyhow. */ | |
8ded5a0f AM |
4044 | for (s = abfd->sections; s != NULL; s = s->next) |
4045 | { | |
4046 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4047 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4048 | { |
1c5265b5 | 4049 | asection *s2; |
91d6fa6a NC |
4050 | |
4051 | count = 1; | |
8ded5a0f | 4052 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4053 | if (s->alignment_power == 2) |
4054 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4055 | { |
4056 | if (s2->next->alignment_power == 2 | |
4057 | && (s2->next->flags & SEC_LOAD) != 0 | |
4058 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4059 | && align_power (s2->lma + s2->size, 2) |
4060 | == s2->next->lma) | |
55b581a6 JJ |
4061 | count++; |
4062 | else | |
4063 | break; | |
4064 | } | |
1c5265b5 | 4065 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4066 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4067 | if (m == NULL) |
4068 | goto error_return; | |
4069 | m->next = NULL; | |
4070 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4071 | m->count = count; |
4072 | while (count > 1) | |
4073 | { | |
4074 | m->sections[m->count - count--] = s; | |
4075 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4076 | s = s->next; | |
4077 | } | |
4078 | m->sections[m->count - 1] = s; | |
4079 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4080 | *pm = m; |
4081 | pm = &m->next; | |
4082 | } | |
4083 | if (s->flags & SEC_THREAD_LOCAL) | |
4084 | { | |
4085 | if (! tls_count) | |
4086 | first_tls = s; | |
4087 | tls_count++; | |
4088 | } | |
4089 | } | |
252b5132 | 4090 | |
8ded5a0f AM |
4091 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4092 | if (tls_count > 0) | |
4093 | { | |
8ded5a0f AM |
4094 | amt = sizeof (struct elf_segment_map); |
4095 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4096 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4097 | if (m == NULL) |
4098 | goto error_return; | |
4099 | m->next = NULL; | |
4100 | m->p_type = PT_TLS; | |
4101 | m->count = tls_count; | |
4102 | /* Mandated PF_R. */ | |
4103 | m->p_flags = PF_R; | |
4104 | m->p_flags_valid = 1; | |
91d6fa6a | 4105 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f AM |
4106 | { |
4107 | BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL); | |
4108 | m->sections[i] = first_tls; | |
4109 | first_tls = first_tls->next; | |
4110 | } | |
252b5132 | 4111 | |
8ded5a0f AM |
4112 | *pm = m; |
4113 | pm = &m->next; | |
4114 | } | |
252b5132 | 4115 | |
8ded5a0f AM |
4116 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
4117 | segment. */ | |
4118 | eh_frame_hdr = elf_tdata (abfd)->eh_frame_hdr; | |
4119 | if (eh_frame_hdr != NULL | |
4120 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 4121 | { |
dc810e39 | 4122 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4123 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4124 | if (m == NULL) |
4125 | goto error_return; | |
4126 | m->next = NULL; | |
8ded5a0f | 4127 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 4128 | m->count = 1; |
8ded5a0f | 4129 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
4130 | |
4131 | *pm = m; | |
4132 | pm = &m->next; | |
4133 | } | |
13ae64f3 | 4134 | |
8ded5a0f | 4135 | if (elf_tdata (abfd)->stack_flags) |
13ae64f3 | 4136 | { |
8ded5a0f | 4137 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4138 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4139 | if (m == NULL) |
4140 | goto error_return; | |
4141 | m->next = NULL; | |
2b05f1b7 | 4142 | m->p_type = PT_GNU_STACK; |
8ded5a0f | 4143 | m->p_flags = elf_tdata (abfd)->stack_flags; |
04c3a755 | 4144 | m->p_align = bed->stack_align; |
8ded5a0f | 4145 | m->p_flags_valid = 1; |
04c3a755 NS |
4146 | m->p_align_valid = m->p_align != 0; |
4147 | if (info->stacksize > 0) | |
4148 | { | |
4149 | m->p_size = info->stacksize; | |
4150 | m->p_size_valid = 1; | |
4151 | } | |
252b5132 | 4152 | |
8ded5a0f AM |
4153 | *pm = m; |
4154 | pm = &m->next; | |
4155 | } | |
65765700 | 4156 | |
ceae84aa | 4157 | if (info != NULL && info->relro) |
8ded5a0f | 4158 | { |
f210dcff L |
4159 | for (m = mfirst; m != NULL; m = m->next) |
4160 | { | |
3832a4d8 AM |
4161 | if (m->p_type == PT_LOAD |
4162 | && m->count != 0 | |
4163 | && m->sections[0]->vma >= info->relro_start | |
4164 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 4165 | { |
3832a4d8 AM |
4166 | i = m->count; |
4167 | while (--i != (unsigned) -1) | |
4168 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4169 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4170 | break; | |
4171 | ||
4172 | if (i == (unsigned) -1) | |
4173 | continue; | |
65765700 | 4174 | |
3832a4d8 AM |
4175 | if (m->sections[i]->vma + m->sections[i]->size |
4176 | >= info->relro_end) | |
f210dcff L |
4177 | break; |
4178 | } | |
be01b344 | 4179 | } |
f210dcff L |
4180 | |
4181 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
4182 | if (m != NULL) | |
4183 | { | |
4184 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4185 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
4186 | if (m == NULL) |
4187 | goto error_return; | |
4188 | m->next = NULL; | |
4189 | m->p_type = PT_GNU_RELRO; | |
4190 | m->p_flags = PF_R; | |
4191 | m->p_flags_valid = 1; | |
4192 | ||
4193 | *pm = m; | |
4194 | pm = &m->next; | |
4195 | } | |
8ded5a0f | 4196 | } |
9ee5e499 | 4197 | |
8ded5a0f AM |
4198 | free (sections); |
4199 | elf_tdata (abfd)->segment_map = mfirst; | |
9ee5e499 JJ |
4200 | } |
4201 | ||
3dea8fca | 4202 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 4203 | return FALSE; |
8c37241b | 4204 | |
8ded5a0f AM |
4205 | for (count = 0, m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
4206 | ++count; | |
4207 | elf_tdata (abfd)->program_header_size = count * bed->s->sizeof_phdr; | |
252b5132 | 4208 | |
b34976b6 | 4209 | return TRUE; |
252b5132 RH |
4210 | |
4211 | error_return: | |
4212 | if (sections != NULL) | |
4213 | free (sections); | |
b34976b6 | 4214 | return FALSE; |
252b5132 RH |
4215 | } |
4216 | ||
4217 | /* Sort sections by address. */ | |
4218 | ||
4219 | static int | |
217aa764 | 4220 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
4221 | { |
4222 | const asection *sec1 = *(const asection **) arg1; | |
4223 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 4224 | bfd_size_type size1, size2; |
252b5132 RH |
4225 | |
4226 | /* Sort by LMA first, since this is the address used to | |
4227 | place the section into a segment. */ | |
4228 | if (sec1->lma < sec2->lma) | |
4229 | return -1; | |
4230 | else if (sec1->lma > sec2->lma) | |
4231 | return 1; | |
4232 | ||
4233 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
4234 | the same, and this will do nothing. */ | |
4235 | if (sec1->vma < sec2->vma) | |
4236 | return -1; | |
4237 | else if (sec1->vma > sec2->vma) | |
4238 | return 1; | |
4239 | ||
4240 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
4241 | ||
07c6e936 | 4242 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
4243 | |
4244 | if (TOEND (sec1)) | |
4245 | { | |
4246 | if (TOEND (sec2)) | |
00a7cdc5 NC |
4247 | { |
4248 | /* If the indicies are the same, do not return 0 | |
4249 | here, but continue to try the next comparison. */ | |
4250 | if (sec1->target_index - sec2->target_index != 0) | |
4251 | return sec1->target_index - sec2->target_index; | |
4252 | } | |
252b5132 RH |
4253 | else |
4254 | return 1; | |
4255 | } | |
00a7cdc5 | 4256 | else if (TOEND (sec2)) |
252b5132 RH |
4257 | return -1; |
4258 | ||
4259 | #undef TOEND | |
4260 | ||
00a7cdc5 NC |
4261 | /* Sort by size, to put zero sized sections |
4262 | before others at the same address. */ | |
252b5132 | 4263 | |
eea6121a AM |
4264 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
4265 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
4266 | |
4267 | if (size1 < size2) | |
252b5132 | 4268 | return -1; |
eecdbe52 | 4269 | if (size1 > size2) |
252b5132 RH |
4270 | return 1; |
4271 | ||
4272 | return sec1->target_index - sec2->target_index; | |
4273 | } | |
4274 | ||
340b6d91 AC |
4275 | /* Ian Lance Taylor writes: |
4276 | ||
4277 | We shouldn't be using % with a negative signed number. That's just | |
4278 | not good. We have to make sure either that the number is not | |
4279 | negative, or that the number has an unsigned type. When the types | |
4280 | are all the same size they wind up as unsigned. When file_ptr is a | |
4281 | larger signed type, the arithmetic winds up as signed long long, | |
4282 | which is wrong. | |
4283 | ||
4284 | What we're trying to say here is something like ``increase OFF by | |
4285 | the least amount that will cause it to be equal to the VMA modulo | |
4286 | the page size.'' */ | |
4287 | /* In other words, something like: | |
4288 | ||
4289 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
4290 | off_offset = off % bed->maxpagesize; | |
4291 | if (vma_offset < off_offset) | |
4292 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
4293 | else | |
4294 | adjustment = vma_offset - off_offset; | |
08a40648 | 4295 | |
340b6d91 AC |
4296 | which can can be collapsed into the expression below. */ |
4297 | ||
4298 | static file_ptr | |
4299 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
4300 | { | |
4301 | return ((vma - off) % maxpagesize); | |
4302 | } | |
4303 | ||
6d33f217 L |
4304 | static void |
4305 | print_segment_map (const struct elf_segment_map *m) | |
4306 | { | |
4307 | unsigned int j; | |
4308 | const char *pt = get_segment_type (m->p_type); | |
4309 | char buf[32]; | |
4310 | ||
4311 | if (pt == NULL) | |
4312 | { | |
4313 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
4314 | sprintf (buf, "LOPROC+%7.7x", | |
4315 | (unsigned int) (m->p_type - PT_LOPROC)); | |
4316 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
4317 | sprintf (buf, "LOOS+%7.7x", | |
4318 | (unsigned int) (m->p_type - PT_LOOS)); | |
4319 | else | |
4320 | snprintf (buf, sizeof (buf), "%8.8x", | |
4321 | (unsigned int) m->p_type); | |
4322 | pt = buf; | |
4323 | } | |
4a97a0e5 | 4324 | fflush (stdout); |
6d33f217 L |
4325 | fprintf (stderr, "%s:", pt); |
4326 | for (j = 0; j < m->count; j++) | |
4327 | fprintf (stderr, " %s", m->sections [j]->name); | |
4328 | putc ('\n',stderr); | |
4a97a0e5 | 4329 | fflush (stderr); |
6d33f217 L |
4330 | } |
4331 | ||
32812159 AM |
4332 | static bfd_boolean |
4333 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
4334 | { | |
4335 | void *buf; | |
4336 | bfd_boolean ret; | |
4337 | ||
4338 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
4339 | return FALSE; | |
4340 | buf = bfd_zmalloc (len); | |
4341 | if (buf == NULL) | |
4342 | return FALSE; | |
4343 | ret = bfd_bwrite (buf, len, abfd) == len; | |
4344 | free (buf); | |
4345 | return ret; | |
4346 | } | |
4347 | ||
252b5132 RH |
4348 | /* Assign file positions to the sections based on the mapping from |
4349 | sections to segments. This function also sets up some fields in | |
f3520d2f | 4350 | the file header. */ |
252b5132 | 4351 | |
b34976b6 | 4352 | static bfd_boolean |
f3520d2f AM |
4353 | assign_file_positions_for_load_sections (bfd *abfd, |
4354 | struct bfd_link_info *link_info) | |
252b5132 RH |
4355 | { |
4356 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 4357 | struct elf_segment_map *m; |
252b5132 | 4358 | Elf_Internal_Phdr *phdrs; |
252b5132 | 4359 | Elf_Internal_Phdr *p; |
02bf8d82 | 4360 | file_ptr off; |
3f570048 | 4361 | bfd_size_type maxpagesize; |
f3520d2f | 4362 | unsigned int alloc; |
0920dee7 | 4363 | unsigned int i, j; |
2b0bc088 | 4364 | bfd_vma header_pad = 0; |
252b5132 | 4365 | |
e36284ab | 4366 | if (link_info == NULL |
ceae84aa | 4367 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 4368 | return FALSE; |
252b5132 | 4369 | |
8ded5a0f | 4370 | alloc = 0; |
252b5132 | 4371 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
2b0bc088 NC |
4372 | { |
4373 | ++alloc; | |
4374 | if (m->header_size) | |
4375 | header_pad = m->header_size; | |
4376 | } | |
252b5132 | 4377 | |
82f2dbf7 NC |
4378 | if (alloc) |
4379 | { | |
4380 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
4381 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
4382 | } | |
4383 | else | |
4384 | { | |
4385 | /* PR binutils/12467. */ | |
4386 | elf_elfheader (abfd)->e_phoff = 0; | |
4387 | elf_elfheader (abfd)->e_phentsize = 0; | |
4388 | } | |
d324f6d6 | 4389 | |
8ded5a0f | 4390 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 4391 | |
62d7a5f6 | 4392 | if (elf_tdata (abfd)->program_header_size == (bfd_size_type) -1) |
8ded5a0f AM |
4393 | elf_tdata (abfd)->program_header_size = alloc * bed->s->sizeof_phdr; |
4394 | else | |
4395 | BFD_ASSERT (elf_tdata (abfd)->program_header_size | |
59e0647f | 4396 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
4397 | |
4398 | if (alloc == 0) | |
f3520d2f | 4399 | { |
8ded5a0f AM |
4400 | elf_tdata (abfd)->next_file_pos = bed->s->sizeof_ehdr; |
4401 | return TRUE; | |
f3520d2f | 4402 | } |
252b5132 | 4403 | |
57268894 HPN |
4404 | /* We're writing the size in elf_tdata (abfd)->program_header_size, |
4405 | see assign_file_positions_except_relocs, so make sure we have | |
4406 | that amount allocated, with trailing space cleared. | |
4407 | The variable alloc contains the computed need, while elf_tdata | |
4408 | (abfd)->program_header_size contains the size used for the | |
4409 | layout. | |
4410 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
4411 | where the layout is forced to according to a larger size in the | |
4412 | last iterations for the testcase ld-elf/header. */ | |
4413 | BFD_ASSERT (elf_tdata (abfd)->program_header_size % bed->s->sizeof_phdr | |
4414 | == 0); | |
a50b1753 NC |
4415 | phdrs = (Elf_Internal_Phdr *) |
4416 | bfd_zalloc2 (abfd, | |
4417 | (elf_tdata (abfd)->program_header_size / bed->s->sizeof_phdr), | |
4418 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 4419 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 4420 | if (phdrs == NULL) |
b34976b6 | 4421 | return FALSE; |
252b5132 | 4422 | |
3f570048 AM |
4423 | maxpagesize = 1; |
4424 | if ((abfd->flags & D_PAGED) != 0) | |
4425 | maxpagesize = bed->maxpagesize; | |
4426 | ||
252b5132 RH |
4427 | off = bed->s->sizeof_ehdr; |
4428 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4429 | if (header_pad < (bfd_vma) off) |
4430 | header_pad = 0; | |
4431 | else | |
4432 | header_pad -= off; | |
4433 | off += header_pad; | |
252b5132 | 4434 | |
0920dee7 | 4435 | for (m = elf_tdata (abfd)->segment_map, p = phdrs, j = 0; |
252b5132 | 4436 | m != NULL; |
0920dee7 | 4437 | m = m->next, p++, j++) |
252b5132 | 4438 | { |
252b5132 | 4439 | asection **secpp; |
bf988460 AM |
4440 | bfd_vma off_adjust; |
4441 | bfd_boolean no_contents; | |
252b5132 RH |
4442 | |
4443 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 4444 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
4445 | not be done to the PT_NOTE section of a corefile, which may |
4446 | contain several pseudo-sections artificially created by bfd. | |
4447 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
4448 | if (m->count > 1 |
4449 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 4450 | && m->p_type == PT_NOTE)) |
252b5132 RH |
4451 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
4452 | elf_sort_sections); | |
4453 | ||
b301b248 AM |
4454 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
4455 | number of sections with contents contributing to both p_filesz | |
4456 | and p_memsz, followed by a number of sections with no contents | |
4457 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 4458 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 4459 | p->p_type = m->p_type; |
28a7f3e7 | 4460 | p->p_flags = m->p_flags; |
252b5132 | 4461 | |
3f570048 AM |
4462 | if (m->count == 0) |
4463 | p->p_vaddr = 0; | |
4464 | else | |
3271a814 | 4465 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
4466 | |
4467 | if (m->p_paddr_valid) | |
4468 | p->p_paddr = m->p_paddr; | |
4469 | else if (m->count == 0) | |
4470 | p->p_paddr = 0; | |
4471 | else | |
08a40648 | 4472 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
4473 | |
4474 | if (p->p_type == PT_LOAD | |
4475 | && (abfd->flags & D_PAGED) != 0) | |
4476 | { | |
4477 | /* p_align in demand paged PT_LOAD segments effectively stores | |
4478 | the maximum page size. When copying an executable with | |
4479 | objcopy, we set m->p_align from the input file. Use this | |
4480 | value for maxpagesize rather than bed->maxpagesize, which | |
4481 | may be different. Note that we use maxpagesize for PT_TLS | |
4482 | segment alignment later in this function, so we are relying | |
4483 | on at least one PT_LOAD segment appearing before a PT_TLS | |
4484 | segment. */ | |
4485 | if (m->p_align_valid) | |
4486 | maxpagesize = m->p_align; | |
4487 | ||
4488 | p->p_align = maxpagesize; | |
4489 | } | |
3271a814 NS |
4490 | else if (m->p_align_valid) |
4491 | p->p_align = m->p_align; | |
e970b90a DJ |
4492 | else if (m->count == 0) |
4493 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
4494 | else |
4495 | p->p_align = 0; | |
4496 | ||
bf988460 AM |
4497 | no_contents = FALSE; |
4498 | off_adjust = 0; | |
252b5132 | 4499 | if (p->p_type == PT_LOAD |
b301b248 | 4500 | && m->count > 0) |
252b5132 | 4501 | { |
b301b248 | 4502 | bfd_size_type align; |
a49e53ed | 4503 | unsigned int align_power = 0; |
b301b248 | 4504 | |
3271a814 NS |
4505 | if (m->p_align_valid) |
4506 | align = p->p_align; | |
4507 | else | |
252b5132 | 4508 | { |
3271a814 NS |
4509 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4510 | { | |
4511 | unsigned int secalign; | |
08a40648 | 4512 | |
3271a814 NS |
4513 | secalign = bfd_get_section_alignment (abfd, *secpp); |
4514 | if (secalign > align_power) | |
4515 | align_power = secalign; | |
4516 | } | |
4517 | align = (bfd_size_type) 1 << align_power; | |
4518 | if (align < maxpagesize) | |
4519 | align = maxpagesize; | |
b301b248 | 4520 | } |
252b5132 | 4521 | |
02bf8d82 AM |
4522 | for (i = 0; i < m->count; i++) |
4523 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
4524 | /* If we aren't making room for this section, then | |
4525 | it must be SHT_NOBITS regardless of what we've | |
4526 | set via struct bfd_elf_special_section. */ | |
4527 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
4528 | ||
bf988460 | 4529 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
4530 | sections. */ |
4531 | no_contents = TRUE; | |
4532 | for (i = 0; i < m->count; i++) | |
4533 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
4534 | { | |
4535 | no_contents = FALSE; | |
4536 | break; | |
4537 | } | |
bf988460 | 4538 | |
85cfcbfb | 4539 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
bf988460 AM |
4540 | off += off_adjust; |
4541 | if (no_contents) | |
4542 | { | |
4543 | /* We shouldn't need to align the segment on disk since | |
4544 | the segment doesn't need file space, but the gABI | |
4545 | arguably requires the alignment and glibc ld.so | |
4546 | checks it. So to comply with the alignment | |
4547 | requirement but not waste file space, we adjust | |
4548 | p_offset for just this segment. (OFF_ADJUST is | |
4549 | subtracted from OFF later.) This may put p_offset | |
4550 | past the end of file, but that shouldn't matter. */ | |
4551 | } | |
4552 | else | |
4553 | off_adjust = 0; | |
252b5132 | 4554 | } |
b1a6d0b1 NC |
4555 | /* Make sure the .dynamic section is the first section in the |
4556 | PT_DYNAMIC segment. */ | |
4557 | else if (p->p_type == PT_DYNAMIC | |
4558 | && m->count > 1 | |
4559 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
4560 | { | |
4561 | _bfd_error_handler | |
b301b248 AM |
4562 | (_("%B: The first section in the PT_DYNAMIC segment is not the .dynamic section"), |
4563 | abfd); | |
b1a6d0b1 NC |
4564 | bfd_set_error (bfd_error_bad_value); |
4565 | return FALSE; | |
4566 | } | |
3f001e84 JK |
4567 | /* Set the note section type to SHT_NOTE. */ |
4568 | else if (p->p_type == PT_NOTE) | |
4569 | for (i = 0; i < m->count; i++) | |
4570 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 4571 | |
252b5132 RH |
4572 | p->p_offset = 0; |
4573 | p->p_filesz = 0; | |
4574 | p->p_memsz = 0; | |
4575 | ||
4576 | if (m->includes_filehdr) | |
4577 | { | |
bf988460 | 4578 | if (!m->p_flags_valid) |
252b5132 | 4579 | p->p_flags |= PF_R; |
252b5132 RH |
4580 | p->p_filesz = bed->s->sizeof_ehdr; |
4581 | p->p_memsz = bed->s->sizeof_ehdr; | |
4582 | if (m->count > 0) | |
4583 | { | |
252b5132 RH |
4584 | if (p->p_vaddr < (bfd_vma) off) |
4585 | { | |
caf47ea6 | 4586 | (*_bfd_error_handler) |
b301b248 AM |
4587 | (_("%B: Not enough room for program headers, try linking with -N"), |
4588 | abfd); | |
252b5132 | 4589 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4590 | return FALSE; |
252b5132 RH |
4591 | } |
4592 | ||
4593 | p->p_vaddr -= off; | |
bf988460 | 4594 | if (!m->p_paddr_valid) |
252b5132 RH |
4595 | p->p_paddr -= off; |
4596 | } | |
252b5132 RH |
4597 | } |
4598 | ||
4599 | if (m->includes_phdrs) | |
4600 | { | |
bf988460 | 4601 | if (!m->p_flags_valid) |
252b5132 RH |
4602 | p->p_flags |= PF_R; |
4603 | ||
f3520d2f | 4604 | if (!m->includes_filehdr) |
252b5132 RH |
4605 | { |
4606 | p->p_offset = bed->s->sizeof_ehdr; | |
4607 | ||
4608 | if (m->count > 0) | |
4609 | { | |
252b5132 | 4610 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 4611 | if (!m->p_paddr_valid) |
252b5132 RH |
4612 | p->p_paddr -= off - p->p_offset; |
4613 | } | |
252b5132 RH |
4614 | } |
4615 | ||
4616 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
4617 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4618 | if (m->count) |
4619 | { | |
4620 | p->p_filesz += header_pad; | |
4621 | p->p_memsz += header_pad; | |
4622 | } | |
252b5132 RH |
4623 | } |
4624 | ||
4625 | if (p->p_type == PT_LOAD | |
4626 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
4627 | { | |
bf988460 | 4628 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 4629 | p->p_offset = off; |
252b5132 RH |
4630 | else |
4631 | { | |
4632 | file_ptr adjust; | |
4633 | ||
4634 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
4635 | if (!no_contents) |
4636 | p->p_filesz += adjust; | |
252b5132 RH |
4637 | p->p_memsz += adjust; |
4638 | } | |
4639 | } | |
4640 | ||
1ea63fd2 AM |
4641 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
4642 | maps. Set filepos for sections in PT_LOAD segments, and in | |
4643 | core files, for sections in PT_NOTE segments. | |
4644 | assign_file_positions_for_non_load_sections will set filepos | |
4645 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
4646 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4647 | { | |
4648 | asection *sec; | |
252b5132 | 4649 | bfd_size_type align; |
627b32bc | 4650 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
4651 | |
4652 | sec = *secpp; | |
02bf8d82 | 4653 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 4654 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 4655 | |
88967714 AM |
4656 | if ((p->p_type == PT_LOAD |
4657 | || p->p_type == PT_TLS) | |
4658 | && (this_hdr->sh_type != SHT_NOBITS | |
4659 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
4660 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
4661 | || p->p_type == PT_TLS)))) | |
252b5132 | 4662 | { |
b5599592 AM |
4663 | bfd_vma p_start = p->p_paddr; |
4664 | bfd_vma p_end = p_start + p->p_memsz; | |
4665 | bfd_vma s_start = sec->lma; | |
4666 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 4667 | |
a2d1e028 L |
4668 | if (adjust != 0 |
4669 | && (s_start < p_end | |
4670 | || p_end < p_start)) | |
252b5132 | 4671 | { |
88967714 | 4672 | (*_bfd_error_handler) |
b5599592 AM |
4673 | (_("%B: section %A lma %#lx adjusted to %#lx"), abfd, sec, |
4674 | (unsigned long) s_start, (unsigned long) p_end); | |
88967714 | 4675 | adjust = 0; |
b5599592 | 4676 | sec->lma = p_end; |
1cfb7d1e | 4677 | } |
3ac9b6c9 | 4678 | p->p_memsz += adjust; |
1cfb7d1e | 4679 | |
88967714 AM |
4680 | if (this_hdr->sh_type != SHT_NOBITS) |
4681 | { | |
32812159 AM |
4682 | if (p->p_filesz + adjust < p->p_memsz) |
4683 | { | |
4684 | /* We have a PROGBITS section following NOBITS ones. | |
4685 | Allocate file space for the NOBITS section(s) and | |
4686 | zero it. */ | |
4687 | adjust = p->p_memsz - p->p_filesz; | |
4688 | if (!write_zeros (abfd, off, adjust)) | |
4689 | return FALSE; | |
4690 | } | |
88967714 AM |
4691 | off += adjust; |
4692 | p->p_filesz += adjust; | |
252b5132 | 4693 | } |
252b5132 RH |
4694 | } |
4695 | ||
4696 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
4697 | { | |
b301b248 AM |
4698 | /* The section at i == 0 is the one that actually contains |
4699 | everything. */ | |
4a938328 MS |
4700 | if (i == 0) |
4701 | { | |
627b32bc | 4702 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
4703 | off += this_hdr->sh_size; |
4704 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
4705 | p->p_memsz = 0; |
4706 | p->p_align = 1; | |
252b5132 | 4707 | } |
4a938328 | 4708 | else |
252b5132 | 4709 | { |
b301b248 | 4710 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 4711 | sec->filepos = 0; |
eea6121a | 4712 | sec->size = 0; |
b301b248 AM |
4713 | sec->flags = 0; |
4714 | continue; | |
252b5132 | 4715 | } |
252b5132 RH |
4716 | } |
4717 | else | |
4718 | { | |
1e951488 | 4719 | if (p->p_type == PT_LOAD) |
b301b248 | 4720 | { |
1e951488 AM |
4721 | this_hdr->sh_offset = sec->filepos = off; |
4722 | if (this_hdr->sh_type != SHT_NOBITS) | |
4723 | off += this_hdr->sh_size; | |
4724 | } | |
4725 | else if (this_hdr->sh_type == SHT_NOBITS | |
4726 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
4727 | && this_hdr->sh_offset == 0) | |
4728 | { | |
4729 | /* This is a .tbss section that didn't get a PT_LOAD. | |
4730 | (See _bfd_elf_map_sections_to_segments "Create a | |
4731 | final PT_LOAD".) Set sh_offset to the value it | |
4732 | would have if we had created a zero p_filesz and | |
4733 | p_memsz PT_LOAD header for the section. This | |
4734 | also makes the PT_TLS header have the same | |
4735 | p_offset value. */ | |
4736 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
4737 | off, align); | |
4738 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 4739 | } |
252b5132 | 4740 | |
02bf8d82 | 4741 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 4742 | { |
6a3cd2b4 | 4743 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
4744 | /* A load section without SHF_ALLOC is something like |
4745 | a note section in a PT_NOTE segment. These take | |
4746 | file space but are not loaded into memory. */ | |
4747 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 4748 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 4749 | } |
6a3cd2b4 | 4750 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 4751 | { |
6a3cd2b4 AM |
4752 | if (p->p_type == PT_TLS) |
4753 | p->p_memsz += this_hdr->sh_size; | |
4754 | ||
4755 | /* .tbss is special. It doesn't contribute to p_memsz of | |
4756 | normal segments. */ | |
4757 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
4758 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
4759 | } |
4760 | ||
b10a8ae0 L |
4761 | if (align > p->p_align |
4762 | && !m->p_align_valid | |
4763 | && (p->p_type != PT_LOAD | |
4764 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
4765 | p->p_align = align; |
4766 | } | |
4767 | ||
bf988460 | 4768 | if (!m->p_flags_valid) |
252b5132 RH |
4769 | { |
4770 | p->p_flags |= PF_R; | |
02bf8d82 | 4771 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 4772 | p->p_flags |= PF_X; |
02bf8d82 | 4773 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
4774 | p->p_flags |= PF_W; |
4775 | } | |
4776 | } | |
bf988460 | 4777 | off -= off_adjust; |
0920dee7 | 4778 | |
7c928300 AM |
4779 | /* Check that all sections are in a PT_LOAD segment. |
4780 | Don't check funky gdb generated core files. */ | |
4781 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
4782 | { |
4783 | bfd_boolean check_vma = TRUE; | |
4784 | ||
4785 | for (i = 1; i < m->count; i++) | |
4786 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
4787 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
4788 | ->this_hdr), p) != 0 | |
4789 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
4790 | ->this_hdr), p) != 0) | |
0920dee7 | 4791 | { |
9a83a553 AM |
4792 | /* Looks like we have overlays packed into the segment. */ |
4793 | check_vma = FALSE; | |
4794 | break; | |
0920dee7 | 4795 | } |
9a83a553 AM |
4796 | |
4797 | for (i = 0; i < m->count; i++) | |
4798 | { | |
4799 | Elf_Internal_Shdr *this_hdr; | |
4800 | asection *sec; | |
4801 | ||
4802 | sec = m->sections[i]; | |
4803 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
4804 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
4805 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 AM |
4806 | { |
4807 | (*_bfd_error_handler) | |
4808 | (_("%B: section `%A' can't be allocated in segment %d"), | |
4809 | abfd, sec, j); | |
4810 | print_segment_map (m); | |
4811 | } | |
4812 | } | |
4813 | } | |
252b5132 RH |
4814 | } |
4815 | ||
f3520d2f AM |
4816 | elf_tdata (abfd)->next_file_pos = off; |
4817 | return TRUE; | |
4818 | } | |
4819 | ||
4820 | /* Assign file positions for the other sections. */ | |
4821 | ||
4822 | static bfd_boolean | |
4823 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
4824 | struct bfd_link_info *link_info) | |
4825 | { | |
4826 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
4827 | Elf_Internal_Shdr **i_shdrpp; | |
4828 | Elf_Internal_Shdr **hdrpp; | |
4829 | Elf_Internal_Phdr *phdrs; | |
4830 | Elf_Internal_Phdr *p; | |
4831 | struct elf_segment_map *m; | |
62655c7b | 4832 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
4833 | bfd_vma filehdr_vaddr, filehdr_paddr; |
4834 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
4835 | file_ptr off; | |
4836 | unsigned int num_sec; | |
4837 | unsigned int i; | |
4838 | unsigned int count; | |
4839 | ||
5c182d5f AM |
4840 | i_shdrpp = elf_elfsections (abfd); |
4841 | num_sec = elf_numsections (abfd); | |
f3520d2f | 4842 | off = elf_tdata (abfd)->next_file_pos; |
5c182d5f AM |
4843 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
4844 | { | |
4845 | struct elf_obj_tdata *tdata = elf_tdata (abfd); | |
4846 | Elf_Internal_Shdr *hdr; | |
4847 | ||
4848 | hdr = *hdrpp; | |
4849 | if (hdr->bfd_section != NULL | |
252e386e AM |
4850 | && (hdr->bfd_section->filepos != 0 |
4851 | || (hdr->sh_type == SHT_NOBITS | |
4852 | && hdr->contents == NULL))) | |
627b32bc | 4853 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
4854 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
4855 | { | |
e8d2ba53 AM |
4856 | if (hdr->sh_size != 0) |
4857 | (*_bfd_error_handler) | |
4858 | (_("%B: warning: allocated section `%s' not in segment"), | |
4859 | abfd, | |
4860 | (hdr->bfd_section == NULL | |
4861 | ? "*unknown*" | |
4862 | : hdr->bfd_section->name)); | |
3ba71138 L |
4863 | /* We don't need to page align empty sections. */ |
4864 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
4865 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
4866 | bed->maxpagesize); | |
4867 | else | |
4868 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
4869 | hdr->sh_addralign); | |
4870 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
4871 | FALSE); | |
4872 | } | |
4873 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
4874 | && hdr->bfd_section == NULL) | |
4875 | || hdr == i_shdrpp[tdata->symtab_section] | |
4876 | || hdr == i_shdrpp[tdata->symtab_shndx_section] | |
4877 | || hdr == i_shdrpp[tdata->strtab_section]) | |
4878 | hdr->sh_offset = -1; | |
4879 | else | |
4880 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
4881 | } |
4882 | ||
252b5132 RH |
4883 | /* Now that we have set the section file positions, we can set up |
4884 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
4885 | count = 0; |
4886 | filehdr_vaddr = 0; | |
4887 | filehdr_paddr = 0; | |
4888 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
4889 | phdrs_paddr = 0; | |
62655c7b | 4890 | hdrs_segment = NULL; |
f3520d2f AM |
4891 | phdrs = elf_tdata (abfd)->phdr; |
4892 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; | |
4893 | m != NULL; | |
4894 | m = m->next, p++) | |
4895 | { | |
4896 | ++count; | |
4897 | if (p->p_type != PT_LOAD) | |
4898 | continue; | |
4899 | ||
4900 | if (m->includes_filehdr) | |
4901 | { | |
4902 | filehdr_vaddr = p->p_vaddr; | |
4903 | filehdr_paddr = p->p_paddr; | |
4904 | } | |
4905 | if (m->includes_phdrs) | |
4906 | { | |
4907 | phdrs_vaddr = p->p_vaddr; | |
4908 | phdrs_paddr = p->p_paddr; | |
4909 | if (m->includes_filehdr) | |
4910 | { | |
62655c7b | 4911 | hdrs_segment = m; |
f3520d2f AM |
4912 | phdrs_vaddr += bed->s->sizeof_ehdr; |
4913 | phdrs_paddr += bed->s->sizeof_ehdr; | |
4914 | } | |
4915 | } | |
4916 | } | |
4917 | ||
62655c7b RM |
4918 | if (hdrs_segment != NULL && link_info != NULL) |
4919 | { | |
4920 | /* There is a segment that contains both the file headers and the | |
4921 | program headers, so provide a symbol __ehdr_start pointing there. | |
4922 | A program can use this to examine itself robustly. */ | |
4923 | ||
4924 | struct elf_link_hash_entry *hash | |
4925 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
4926 | FALSE, FALSE, TRUE); | |
4927 | /* If the symbol was referenced and not defined, define it. */ | |
4928 | if (hash != NULL | |
4929 | && (hash->root.type == bfd_link_hash_new | |
4930 | || hash->root.type == bfd_link_hash_undefined | |
4931 | || hash->root.type == bfd_link_hash_undefweak | |
4932 | || hash->root.type == bfd_link_hash_common)) | |
4933 | { | |
4934 | asection *s = NULL; | |
4935 | if (hdrs_segment->count != 0) | |
4936 | /* The segment contains sections, so use the first one. */ | |
4937 | s = hdrs_segment->sections[0]; | |
4938 | else | |
4939 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
4940 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
4941 | if (m->count != 0) | |
4942 | { | |
4943 | s = m->sections[0]; | |
4944 | break; | |
4945 | } | |
4946 | ||
4947 | if (s != NULL) | |
4948 | { | |
4949 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
4950 | hash->root.u.def.section = s; | |
4951 | } | |
4952 | else | |
4953 | { | |
4954 | hash->root.u.def.value = filehdr_vaddr; | |
4955 | hash->root.u.def.section = bfd_abs_section_ptr; | |
4956 | } | |
4957 | ||
4958 | hash->root.type = bfd_link_hash_defined; | |
4959 | hash->def_regular = 1; | |
4960 | hash->non_elf = 0; | |
4961 | } | |
4962 | } | |
4963 | ||
252b5132 RH |
4964 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; |
4965 | m != NULL; | |
4966 | m = m->next, p++) | |
4967 | { | |
129af99f | 4968 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 4969 | { |
b84a33b5 | 4970 | const Elf_Internal_Phdr *lp; |
3146fac4 | 4971 | struct elf_segment_map *lm; |
1ea63fd2 | 4972 | |
129af99f | 4973 | if (link_info != NULL) |
8c37241b | 4974 | { |
129af99f AS |
4975 | /* During linking the range of the RELRO segment is passed |
4976 | in link_info. */ | |
3146fac4 AM |
4977 | for (lm = elf_tdata (abfd)->segment_map, lp = phdrs; |
4978 | lm != NULL; | |
4979 | lm = lm->next, lp++) | |
8c37241b JJ |
4980 | { |
4981 | if (lp->p_type == PT_LOAD | |
b84a33b5 | 4982 | && lp->p_vaddr < link_info->relro_end |
3146fac4 AM |
4983 | && lp->p_vaddr + lp->p_filesz >= link_info->relro_end |
4984 | && lm->count != 0 | |
4985 | && lm->sections[0]->vma >= link_info->relro_start) | |
8c37241b JJ |
4986 | break; |
4987 | } | |
8981c88a L |
4988 | |
4989 | /* PR ld/14207. If the RELRO segment doesn't fit in the | |
4990 | LOAD segment, it should be removed. */ | |
3146fac4 | 4991 | BFD_ASSERT (lm != NULL); |
8c37241b | 4992 | } |
129af99f AS |
4993 | else |
4994 | { | |
4995 | /* Otherwise we are copying an executable or shared | |
b84a33b5 | 4996 | library, but we need to use the same linker logic. */ |
129af99f AS |
4997 | for (lp = phdrs; lp < phdrs + count; ++lp) |
4998 | { | |
4999 | if (lp->p_type == PT_LOAD | |
5000 | && lp->p_paddr == p->p_paddr) | |
5001 | break; | |
5002 | } | |
b84a33b5 AM |
5003 | } |
5004 | ||
5005 | if (lp < phdrs + count) | |
5006 | { | |
5007 | p->p_vaddr = lp->p_vaddr; | |
5008 | p->p_paddr = lp->p_paddr; | |
5009 | p->p_offset = lp->p_offset; | |
5010 | if (link_info != NULL) | |
5011 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
5012 | else if (m->p_size_valid) | |
5013 | p->p_filesz = m->p_size; | |
129af99f AS |
5014 | else |
5015 | abort (); | |
b84a33b5 | 5016 | p->p_memsz = p->p_filesz; |
f3944f72 L |
5017 | /* Preserve the alignment and flags if they are valid. The |
5018 | gold linker generates RW/4 for the PT_GNU_RELRO section. | |
5019 | It is better for objcopy/strip to honor these attributes | |
5020 | otherwise gdb will choke when using separate debug files. | |
5021 | */ | |
5022 | if (!m->p_align_valid) | |
5023 | p->p_align = 1; | |
5024 | if (!m->p_flags_valid) | |
5025 | p->p_flags = (lp->p_flags & ~PF_W); | |
129af99f | 5026 | } |
9433b9b1 | 5027 | else |
b84a33b5 AM |
5028 | { |
5029 | memset (p, 0, sizeof *p); | |
5030 | p->p_type = PT_NULL; | |
5031 | } | |
129af99f | 5032 | } |
04c3a755 NS |
5033 | else if (p->p_type == PT_GNU_STACK) |
5034 | { | |
5035 | if (m->p_size_valid) | |
5036 | p->p_memsz = m->p_size; | |
5037 | } | |
129af99f AS |
5038 | else if (m->count != 0) |
5039 | { | |
5040 | if (p->p_type != PT_LOAD | |
5041 | && (p->p_type != PT_NOTE | |
5042 | || bfd_get_format (abfd) != bfd_core)) | |
5043 | { | |
129af99f AS |
5044 | BFD_ASSERT (!m->includes_filehdr && !m->includes_phdrs); |
5045 | ||
86b2281f | 5046 | p->p_filesz = 0; |
129af99f | 5047 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
5048 | for (i = m->count; i-- != 0;) |
5049 | { | |
5050 | asection *sect = m->sections[i]; | |
5051 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
5052 | if (hdr->sh_type != SHT_NOBITS) | |
5053 | { | |
5054 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
5055 | + hdr->sh_size); | |
5056 | break; | |
5057 | } | |
5058 | } | |
129af99f AS |
5059 | } |
5060 | } | |
5061 | else if (m->includes_filehdr) | |
5062 | { | |
5063 | p->p_vaddr = filehdr_vaddr; | |
5064 | if (! m->p_paddr_valid) | |
5065 | p->p_paddr = filehdr_paddr; | |
5066 | } | |
5067 | else if (m->includes_phdrs) | |
5068 | { | |
5069 | p->p_vaddr = phdrs_vaddr; | |
5070 | if (! m->p_paddr_valid) | |
5071 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
5072 | } |
5073 | } | |
5074 | ||
252b5132 RH |
5075 | elf_tdata (abfd)->next_file_pos = off; |
5076 | ||
b34976b6 | 5077 | return TRUE; |
252b5132 RH |
5078 | } |
5079 | ||
252b5132 RH |
5080 | /* Work out the file positions of all the sections. This is called by |
5081 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
5082 | VMAs must be known before this is called. | |
5083 | ||
e0638f70 AM |
5084 | Reloc sections come in two flavours: Those processed specially as |
5085 | "side-channel" data attached to a section to which they apply, and | |
5086 | those that bfd doesn't process as relocations. The latter sort are | |
5087 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
5088 | consider the former sort here, unless they form part of the loadable | |
5089 | image. Reloc sections not assigned here will be handled later by | |
5090 | assign_file_positions_for_relocs. | |
252b5132 RH |
5091 | |
5092 | We also don't set the positions of the .symtab and .strtab here. */ | |
5093 | ||
b34976b6 | 5094 | static bfd_boolean |
c84fca4d AO |
5095 | assign_file_positions_except_relocs (bfd *abfd, |
5096 | struct bfd_link_info *link_info) | |
252b5132 | 5097 | { |
5c182d5f AM |
5098 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
5099 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5100 | file_ptr off; |
9c5bfbb7 | 5101 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5102 | |
5103 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
5104 | && bfd_get_format (abfd) != bfd_core) | |
5105 | { | |
5c182d5f AM |
5106 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
5107 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
5108 | Elf_Internal_Shdr **hdrpp; |
5109 | unsigned int i; | |
5110 | ||
5111 | /* Start after the ELF header. */ | |
5112 | off = i_ehdrp->e_ehsize; | |
5113 | ||
5114 | /* We are not creating an executable, which means that we are | |
5115 | not creating a program header, and that the actual order of | |
5116 | the sections in the file is unimportant. */ | |
9ad5cbcf | 5117 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
5118 | { |
5119 | Elf_Internal_Shdr *hdr; | |
5120 | ||
5121 | hdr = *hdrpp; | |
e0638f70 AM |
5122 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
5123 | && hdr->bfd_section == NULL) | |
9ad5cbcf AM |
5124 | || i == tdata->symtab_section |
5125 | || i == tdata->symtab_shndx_section | |
252b5132 RH |
5126 | || i == tdata->strtab_section) |
5127 | { | |
5128 | hdr->sh_offset = -1; | |
252b5132 | 5129 | } |
9ad5cbcf | 5130 | else |
b34976b6 | 5131 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 RH |
5132 | } |
5133 | } | |
5134 | else | |
5135 | { | |
f3520d2f AM |
5136 | unsigned int alloc; |
5137 | ||
252b5132 | 5138 | /* Assign file positions for the loaded sections based on the |
08a40648 | 5139 | assignment of sections to segments. */ |
f3520d2f AM |
5140 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
5141 | return FALSE; | |
5142 | ||
5143 | /* And for non-load sections. */ | |
5144 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
5145 | return FALSE; | |
5146 | ||
e36284ab AM |
5147 | if (bed->elf_backend_modify_program_headers != NULL) |
5148 | { | |
5149 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
5150 | return FALSE; | |
5151 | } | |
5152 | ||
f3520d2f AM |
5153 | /* Write out the program headers. */ |
5154 | alloc = tdata->program_header_size / bed->s->sizeof_phdr; | |
5155 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 | |
5156 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) | |
b34976b6 | 5157 | return FALSE; |
252b5132 | 5158 | |
5c182d5f | 5159 | off = tdata->next_file_pos; |
252b5132 RH |
5160 | } |
5161 | ||
5162 | /* Place the section headers. */ | |
45d6a902 | 5163 | off = align_file_position (off, 1 << bed->s->log_file_align); |
252b5132 RH |
5164 | i_ehdrp->e_shoff = off; |
5165 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
5166 | ||
5c182d5f | 5167 | tdata->next_file_pos = off; |
252b5132 | 5168 | |
b34976b6 | 5169 | return TRUE; |
252b5132 RH |
5170 | } |
5171 | ||
b34976b6 | 5172 | static bfd_boolean |
217aa764 | 5173 | prep_headers (bfd *abfd) |
252b5132 | 5174 | { |
3d540e93 | 5175 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 5176 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 5177 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5178 | |
5179 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5180 | |
2b0f7ef9 | 5181 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 5182 | if (shstrtab == NULL) |
b34976b6 | 5183 | return FALSE; |
252b5132 RH |
5184 | |
5185 | elf_shstrtab (abfd) = shstrtab; | |
5186 | ||
5187 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
5188 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
5189 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
5190 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
5191 | ||
5192 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
5193 | i_ehdrp->e_ident[EI_DATA] = | |
5194 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
5195 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
5196 | ||
252b5132 RH |
5197 | if ((abfd->flags & DYNAMIC) != 0) |
5198 | i_ehdrp->e_type = ET_DYN; | |
5199 | else if ((abfd->flags & EXEC_P) != 0) | |
5200 | i_ehdrp->e_type = ET_EXEC; | |
5201 | else if (bfd_get_format (abfd) == bfd_core) | |
5202 | i_ehdrp->e_type = ET_CORE; | |
5203 | else | |
5204 | i_ehdrp->e_type = ET_REL; | |
5205 | ||
5206 | switch (bfd_get_arch (abfd)) | |
5207 | { | |
5208 | case bfd_arch_unknown: | |
5209 | i_ehdrp->e_machine = EM_NONE; | |
5210 | break; | |
aa4f99bb AO |
5211 | |
5212 | /* There used to be a long list of cases here, each one setting | |
5213 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
5214 | in the corresponding bfd definition. To avoid duplication, | |
5215 | the switch was removed. Machines that need special handling | |
5216 | can generally do it in elf_backend_final_write_processing(), | |
5217 | unless they need the information earlier than the final write. | |
5218 | Such need can generally be supplied by replacing the tests for | |
5219 | e_machine with the conditions used to determine it. */ | |
252b5132 | 5220 | default: |
9c5bfbb7 AM |
5221 | i_ehdrp->e_machine = bed->elf_machine_code; |
5222 | } | |
aa4f99bb | 5223 | |
252b5132 RH |
5224 | i_ehdrp->e_version = bed->s->ev_current; |
5225 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
5226 | ||
c044fabd | 5227 | /* No program header, for now. */ |
252b5132 RH |
5228 | i_ehdrp->e_phoff = 0; |
5229 | i_ehdrp->e_phentsize = 0; | |
5230 | i_ehdrp->e_phnum = 0; | |
5231 | ||
c044fabd | 5232 | /* Each bfd section is section header entry. */ |
252b5132 RH |
5233 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
5234 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
5235 | ||
c044fabd | 5236 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 5237 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
5238 | /* It all happens later. */ |
5239 | ; | |
252b5132 RH |
5240 | else |
5241 | { | |
5242 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
5243 | i_ehdrp->e_phoff = 0; |
5244 | } | |
5245 | ||
5246 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 5247 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 5248 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 5249 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 5250 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 5251 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 RH |
5252 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
5253 | || elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 | |
5254 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) | |
b34976b6 | 5255 | return FALSE; |
252b5132 | 5256 | |
b34976b6 | 5257 | return TRUE; |
252b5132 RH |
5258 | } |
5259 | ||
5260 | /* Assign file positions for all the reloc sections which are not part | |
5261 | of the loadable file image. */ | |
5262 | ||
5263 | void | |
217aa764 | 5264 | _bfd_elf_assign_file_positions_for_relocs (bfd *abfd) |
252b5132 RH |
5265 | { |
5266 | file_ptr off; | |
9ad5cbcf | 5267 | unsigned int i, num_sec; |
252b5132 RH |
5268 | Elf_Internal_Shdr **shdrpp; |
5269 | ||
5270 | off = elf_tdata (abfd)->next_file_pos; | |
5271 | ||
9ad5cbcf AM |
5272 | num_sec = elf_numsections (abfd); |
5273 | for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++) | |
252b5132 RH |
5274 | { |
5275 | Elf_Internal_Shdr *shdrp; | |
5276 | ||
5277 | shdrp = *shdrpp; | |
5278 | if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA) | |
5279 | && shdrp->sh_offset == -1) | |
b34976b6 | 5280 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); |
252b5132 RH |
5281 | } |
5282 | ||
5283 | elf_tdata (abfd)->next_file_pos = off; | |
5284 | } | |
5285 | ||
b34976b6 | 5286 | bfd_boolean |
217aa764 | 5287 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 5288 | { |
9c5bfbb7 | 5289 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5290 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 5291 | bfd_boolean failed; |
9ad5cbcf | 5292 | unsigned int count, num_sec; |
252b5132 RH |
5293 | |
5294 | if (! abfd->output_has_begun | |
217aa764 | 5295 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 5296 | return FALSE; |
252b5132 RH |
5297 | |
5298 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 5299 | |
b34976b6 | 5300 | failed = FALSE; |
252b5132 RH |
5301 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
5302 | if (failed) | |
b34976b6 | 5303 | return FALSE; |
252b5132 RH |
5304 | |
5305 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |
5306 | ||
c044fabd | 5307 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
5308 | num_sec = elf_numsections (abfd); |
5309 | for (count = 1; count < num_sec; count++) | |
252b5132 RH |
5310 | { |
5311 | if (bed->elf_backend_section_processing) | |
5312 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
5313 | if (i_shdrp[count]->contents) | |
5314 | { | |
dc810e39 AM |
5315 | bfd_size_type amt = i_shdrp[count]->sh_size; |
5316 | ||
252b5132 | 5317 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 5318 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 5319 | return FALSE; |
252b5132 RH |
5320 | } |
5321 | } | |
5322 | ||
5323 | /* Write out the section header names. */ | |
26ae6d5e DJ |
5324 | if (elf_shstrtab (abfd) != NULL |
5325 | && (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0 | |
08a40648 | 5326 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 5327 | return FALSE; |
252b5132 RH |
5328 | |
5329 | if (bed->elf_backend_final_write_processing) | |
5330 | (*bed->elf_backend_final_write_processing) (abfd, | |
5331 | elf_tdata (abfd)->linker); | |
5332 | ||
ff59fc36 RM |
5333 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
5334 | return FALSE; | |
5335 | ||
5336 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
bfb53a4f RM |
5337 | if (elf_tdata (abfd)->after_write_object_contents) |
5338 | return (*elf_tdata (abfd)->after_write_object_contents) (abfd); | |
ff59fc36 RM |
5339 | |
5340 | return TRUE; | |
252b5132 RH |
5341 | } |
5342 | ||
b34976b6 | 5343 | bfd_boolean |
217aa764 | 5344 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 5345 | { |
c044fabd | 5346 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
5347 | return _bfd_elf_write_object_contents (abfd); |
5348 | } | |
c044fabd KH |
5349 | |
5350 | /* Given a section, search the header to find them. */ | |
5351 | ||
cb33740c | 5352 | unsigned int |
198beae2 | 5353 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 5354 | { |
9c5bfbb7 | 5355 | const struct elf_backend_data *bed; |
91d6fa6a | 5356 | unsigned int sec_index; |
252b5132 | 5357 | |
9ad5cbcf AM |
5358 | if (elf_section_data (asect) != NULL |
5359 | && elf_section_data (asect)->this_idx != 0) | |
5360 | return elf_section_data (asect)->this_idx; | |
5361 | ||
5362 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 5363 | sec_index = SHN_ABS; |
af746e92 | 5364 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 5365 | sec_index = SHN_COMMON; |
af746e92 | 5366 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 5367 | sec_index = SHN_UNDEF; |
af746e92 | 5368 | else |
91d6fa6a | 5369 | sec_index = SHN_BAD; |
252b5132 | 5370 | |
af746e92 | 5371 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
5372 | if (bed->elf_backend_section_from_bfd_section) |
5373 | { | |
91d6fa6a | 5374 | int retval = sec_index; |
9ad5cbcf | 5375 | |
af746e92 AM |
5376 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
5377 | return retval; | |
252b5132 RH |
5378 | } |
5379 | ||
91d6fa6a | 5380 | if (sec_index == SHN_BAD) |
af746e92 | 5381 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 5382 | |
91d6fa6a | 5383 | return sec_index; |
252b5132 RH |
5384 | } |
5385 | ||
5386 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
5387 | on error. */ | |
5388 | ||
5389 | int | |
217aa764 | 5390 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
5391 | { |
5392 | asymbol *asym_ptr = *asym_ptr_ptr; | |
5393 | int idx; | |
5394 | flagword flags = asym_ptr->flags; | |
5395 | ||
5396 | /* When gas creates relocations against local labels, it creates its | |
5397 | own symbol for the section, but does put the symbol into the | |
5398 | symbol chain, so udata is 0. When the linker is generating | |
5399 | relocatable output, this section symbol may be for one of the | |
5400 | input sections rather than the output section. */ | |
5401 | if (asym_ptr->udata.i == 0 | |
5402 | && (flags & BSF_SECTION_SYM) | |
5403 | && asym_ptr->section) | |
5404 | { | |
5372391b | 5405 | asection *sec; |
252b5132 RH |
5406 | int indx; |
5407 | ||
5372391b AM |
5408 | sec = asym_ptr->section; |
5409 | if (sec->owner != abfd && sec->output_section != NULL) | |
5410 | sec = sec->output_section; | |
5411 | if (sec->owner == abfd | |
5412 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 5413 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
5414 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
5415 | } | |
5416 | ||
5417 | idx = asym_ptr->udata.i; | |
5418 | ||
5419 | if (idx == 0) | |
5420 | { | |
5421 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 5422 | which is used in a relocation entry. */ |
252b5132 | 5423 | (*_bfd_error_handler) |
d003868e AM |
5424 | (_("%B: symbol `%s' required but not present"), |
5425 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
5426 | bfd_set_error (bfd_error_no_symbols); |
5427 | return -1; | |
5428 | } | |
5429 | ||
5430 | #if DEBUG & 4 | |
5431 | { | |
5432 | fprintf (stderr, | |
9ccb8af9 AM |
5433 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx\n", |
5434 | (long) asym_ptr, asym_ptr->name, idx, (long) flags); | |
252b5132 RH |
5435 | fflush (stderr); |
5436 | } | |
5437 | #endif | |
5438 | ||
5439 | return idx; | |
5440 | } | |
5441 | ||
84d1d650 | 5442 | /* Rewrite program header information. */ |
252b5132 | 5443 | |
b34976b6 | 5444 | static bfd_boolean |
84d1d650 | 5445 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 5446 | { |
b34976b6 AM |
5447 | Elf_Internal_Ehdr *iehdr; |
5448 | struct elf_segment_map *map; | |
5449 | struct elf_segment_map *map_first; | |
5450 | struct elf_segment_map **pointer_to_map; | |
5451 | Elf_Internal_Phdr *segment; | |
5452 | asection *section; | |
5453 | unsigned int i; | |
5454 | unsigned int num_segments; | |
5455 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 5456 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
5457 | bfd_vma maxpagesize; |
5458 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
5459 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 5460 | const struct elf_backend_data *bed; |
bc67d8a6 | 5461 | |
caf47ea6 | 5462 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
5463 | iehdr = elf_elfheader (ibfd); |
5464 | ||
bc67d8a6 | 5465 | map_first = NULL; |
c044fabd | 5466 | pointer_to_map = &map_first; |
252b5132 RH |
5467 | |
5468 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
5469 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
5470 | ||
5471 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
5472 | #define SEGMENT_END(segment, start) \ |
5473 | (start + (segment->p_memsz > segment->p_filesz \ | |
5474 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 5475 | |
eecdbe52 JJ |
5476 | #define SECTION_SIZE(section, segment) \ |
5477 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
5478 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 5479 | ? section->size : 0) |
eecdbe52 | 5480 | |
b34976b6 | 5481 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5482 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
5483 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
5484 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 5485 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5486 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 5487 | |
b34976b6 | 5488 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5489 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
5490 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
5491 | (section->lma >= base \ | |
eecdbe52 | 5492 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5493 | <= SEGMENT_END (segment, base))) |
252b5132 | 5494 | |
0efc80c8 L |
5495 | /* Handle PT_NOTE segment. */ |
5496 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 5497 | (p->p_type == PT_NOTE \ |
0efc80c8 | 5498 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 5499 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5500 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5501 | <= p->p_offset + p->p_filesz)) |
252b5132 | 5502 | |
0efc80c8 L |
5503 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
5504 | etc. */ | |
5505 | #define IS_COREFILE_NOTE(p, s) \ | |
5506 | (IS_NOTE (p, s) \ | |
5507 | && bfd_get_format (ibfd) == bfd_core \ | |
5508 | && s->vma == 0 \ | |
5509 | && s->lma == 0) | |
5510 | ||
252b5132 RH |
5511 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
5512 | linker, which generates a PT_INTERP section with p_vaddr and | |
5513 | p_memsz set to 0. */ | |
aecc8f8a AM |
5514 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
5515 | (p->p_vaddr == 0 \ | |
5516 | && p->p_paddr == 0 \ | |
5517 | && p->p_memsz == 0 \ | |
5518 | && p->p_filesz > 0 \ | |
5519 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 5520 | && s->size > 0 \ |
aecc8f8a | 5521 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5522 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5523 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 5524 | |
bc67d8a6 NC |
5525 | /* Decide if the given section should be included in the given segment. |
5526 | A section will be included if: | |
f5ffc919 | 5527 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 5528 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 5529 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 5530 | segment. |
bc67d8a6 | 5531 | 3. There is an output section associated with it, |
eecdbe52 | 5532 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 5533 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 5534 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
5535 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
5536 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 5537 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 5538 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
5539 | ((((segment->p_paddr \ |
5540 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
5541 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
5542 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 5543 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
5544 | && segment->p_type != PT_GNU_STACK \ |
5545 | && (segment->p_type != PT_TLS \ | |
5546 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
5547 | && (segment->p_type == PT_LOAD \ | |
5548 | || segment->p_type == PT_TLS \ | |
5549 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
5550 | && (segment->p_type != PT_DYNAMIC \ | |
5551 | || SECTION_SIZE (section, segment) > 0 \ | |
5552 | || (segment->p_paddr \ | |
5553 | ? segment->p_paddr != section->lma \ | |
5554 | : segment->p_vaddr != section->vma) \ | |
5555 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
5556 | == 0)) \ | |
0067a569 | 5557 | && !section->segment_mark) |
bc67d8a6 | 5558 | |
9f17e2a6 L |
5559 | /* If the output section of a section in the input segment is NULL, |
5560 | it is removed from the corresponding output segment. */ | |
5561 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
5562 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
5563 | && section->output_section != NULL) | |
5564 | ||
b34976b6 | 5565 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
5566 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
5567 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
5568 | ||
5569 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
5570 | their VMA address ranges and their LMA address ranges overlap. | |
5571 | It is possible to have overlapping VMA ranges without overlapping LMA | |
5572 | ranges. RedBoot images for example can have both .data and .bss mapped | |
5573 | to the same VMA range, but with the .data section mapped to a different | |
5574 | LMA. */ | |
aecc8f8a | 5575 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 5576 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 5577 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 5578 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 5579 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
5580 | |
5581 | /* Initialise the segment mark field. */ | |
5582 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 5583 | section->segment_mark = FALSE; |
bc67d8a6 | 5584 | |
5c44b38e AM |
5585 | /* The Solaris linker creates program headers in which all the |
5586 | p_paddr fields are zero. When we try to objcopy or strip such a | |
5587 | file, we get confused. Check for this case, and if we find it | |
5588 | don't set the p_paddr_valid fields. */ | |
5589 | p_paddr_valid = FALSE; | |
5590 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5591 | i < num_segments; | |
5592 | i++, segment++) | |
5593 | if (segment->p_paddr != 0) | |
5594 | { | |
5595 | p_paddr_valid = TRUE; | |
5596 | break; | |
5597 | } | |
5598 | ||
252b5132 | 5599 | /* Scan through the segments specified in the program header |
bc67d8a6 | 5600 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 5601 | in the loadable segments. These can be created by weird |
aecc8f8a | 5602 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
5603 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
5604 | i < num_segments; | |
c044fabd | 5605 | i++, segment++) |
252b5132 | 5606 | { |
252b5132 | 5607 | unsigned int j; |
c044fabd | 5608 | Elf_Internal_Phdr *segment2; |
252b5132 | 5609 | |
aecc8f8a AM |
5610 | if (segment->p_type == PT_INTERP) |
5611 | for (section = ibfd->sections; section; section = section->next) | |
5612 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
5613 | { | |
5614 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 5615 | assignment code will work. */ |
aecc8f8a AM |
5616 | segment->p_vaddr = section->vma; |
5617 | break; | |
5618 | } | |
5619 | ||
bc67d8a6 | 5620 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
5621 | { |
5622 | /* Remove PT_GNU_RELRO segment. */ | |
5623 | if (segment->p_type == PT_GNU_RELRO) | |
5624 | segment->p_type = PT_NULL; | |
5625 | continue; | |
5626 | } | |
c044fabd | 5627 | |
bc67d8a6 | 5628 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 5629 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
5630 | { |
5631 | bfd_signed_vma extra_length; | |
c044fabd | 5632 | |
bc67d8a6 | 5633 | if (segment2->p_type != PT_LOAD |
0067a569 | 5634 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 5635 | continue; |
c044fabd | 5636 | |
bc67d8a6 NC |
5637 | /* Merge the two segments together. */ |
5638 | if (segment2->p_vaddr < segment->p_vaddr) | |
5639 | { | |
c044fabd | 5640 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 5641 | SEGMENT. */ |
0067a569 AM |
5642 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
5643 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 5644 | |
bc67d8a6 NC |
5645 | if (extra_length > 0) |
5646 | { | |
0067a569 | 5647 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
5648 | segment2->p_filesz += extra_length; |
5649 | } | |
c044fabd | 5650 | |
bc67d8a6 | 5651 | segment->p_type = PT_NULL; |
c044fabd | 5652 | |
bc67d8a6 NC |
5653 | /* Since we have deleted P we must restart the outer loop. */ |
5654 | i = 0; | |
5655 | segment = elf_tdata (ibfd)->phdr; | |
5656 | break; | |
5657 | } | |
5658 | else | |
5659 | { | |
c044fabd | 5660 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 5661 | SEGMENT2. */ |
0067a569 AM |
5662 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
5663 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 5664 | |
bc67d8a6 NC |
5665 | if (extra_length > 0) |
5666 | { | |
0067a569 | 5667 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
5668 | segment->p_filesz += extra_length; |
5669 | } | |
c044fabd | 5670 | |
bc67d8a6 NC |
5671 | segment2->p_type = PT_NULL; |
5672 | } | |
5673 | } | |
5674 | } | |
c044fabd | 5675 | |
bc67d8a6 NC |
5676 | /* The second scan attempts to assign sections to segments. */ |
5677 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5678 | i < num_segments; | |
0067a569 | 5679 | i++, segment++) |
bc67d8a6 | 5680 | { |
0067a569 AM |
5681 | unsigned int section_count; |
5682 | asection **sections; | |
5683 | asection *output_section; | |
5684 | unsigned int isec; | |
5685 | bfd_vma matching_lma; | |
5686 | bfd_vma suggested_lma; | |
5687 | unsigned int j; | |
dc810e39 | 5688 | bfd_size_type amt; |
0067a569 AM |
5689 | asection *first_section; |
5690 | bfd_boolean first_matching_lma; | |
5691 | bfd_boolean first_suggested_lma; | |
bc67d8a6 NC |
5692 | |
5693 | if (segment->p_type == PT_NULL) | |
5694 | continue; | |
c044fabd | 5695 | |
9f17e2a6 | 5696 | first_section = NULL; |
bc67d8a6 | 5697 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
5698 | for (section = ibfd->sections, section_count = 0; |
5699 | section != NULL; | |
5700 | section = section->next) | |
9f17e2a6 L |
5701 | { |
5702 | /* Find the first section in the input segment, which may be | |
5703 | removed from the corresponding output segment. */ | |
5704 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
5705 | { | |
5706 | if (first_section == NULL) | |
5707 | first_section = section; | |
5708 | if (section->output_section != NULL) | |
5709 | ++section_count; | |
5710 | } | |
5711 | } | |
811072d8 | 5712 | |
b5f852ea NC |
5713 | /* Allocate a segment map big enough to contain |
5714 | all of the sections we have selected. */ | |
dc810e39 AM |
5715 | amt = sizeof (struct elf_segment_map); |
5716 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 5717 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 5718 | if (map == NULL) |
b34976b6 | 5719 | return FALSE; |
252b5132 RH |
5720 | |
5721 | /* Initialise the fields of the segment map. Default to | |
5722 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
5723 | map->next = NULL; |
5724 | map->p_type = segment->p_type; | |
5725 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 5726 | map->p_flags_valid = 1; |
55d55ac7 | 5727 | |
9f17e2a6 L |
5728 | /* If the first section in the input segment is removed, there is |
5729 | no need to preserve segment physical address in the corresponding | |
5730 | output segment. */ | |
945c025a | 5731 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
5732 | { |
5733 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 5734 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 5735 | } |
252b5132 RH |
5736 | |
5737 | /* Determine if this segment contains the ELF file header | |
5738 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
5739 | map->includes_filehdr = (segment->p_offset == 0 |
5740 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 5741 | map->includes_phdrs = 0; |
252b5132 | 5742 | |
0067a569 | 5743 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 5744 | { |
bc67d8a6 NC |
5745 | map->includes_phdrs = |
5746 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
5747 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
5748 | >= ((bfd_vma) iehdr->e_phoff |
5749 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 5750 | |
bc67d8a6 | 5751 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 5752 | phdr_included = TRUE; |
252b5132 RH |
5753 | } |
5754 | ||
bc67d8a6 | 5755 | if (section_count == 0) |
252b5132 RH |
5756 | { |
5757 | /* Special segments, such as the PT_PHDR segment, may contain | |
5758 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 NC |
5759 | something. They are allowed by the ELF spec however, so only |
5760 | a warning is produced. */ | |
bc67d8a6 | 5761 | if (segment->p_type == PT_LOAD) |
0067a569 AM |
5762 | (*_bfd_error_handler) (_("%B: warning: Empty loadable segment" |
5763 | " detected, is this intentional ?\n"), | |
5764 | ibfd); | |
252b5132 | 5765 | |
bc67d8a6 | 5766 | map->count = 0; |
c044fabd KH |
5767 | *pointer_to_map = map; |
5768 | pointer_to_map = &map->next; | |
252b5132 RH |
5769 | |
5770 | continue; | |
5771 | } | |
5772 | ||
5773 | /* Now scan the sections in the input BFD again and attempt | |
5774 | to add their corresponding output sections to the segment map. | |
5775 | The problem here is how to handle an output section which has | |
5776 | been moved (ie had its LMA changed). There are four possibilities: | |
5777 | ||
5778 | 1. None of the sections have been moved. | |
5779 | In this case we can continue to use the segment LMA from the | |
5780 | input BFD. | |
5781 | ||
5782 | 2. All of the sections have been moved by the same amount. | |
5783 | In this case we can change the segment's LMA to match the LMA | |
5784 | of the first section. | |
5785 | ||
5786 | 3. Some of the sections have been moved, others have not. | |
5787 | In this case those sections which have not been moved can be | |
5788 | placed in the current segment which will have to have its size, | |
5789 | and possibly its LMA changed, and a new segment or segments will | |
5790 | have to be created to contain the other sections. | |
5791 | ||
b5f852ea | 5792 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
5793 | In this case we can change the segment's LMA to match the LMA |
5794 | of the first section and we will have to create a new segment | |
5795 | or segments to contain the other sections. | |
5796 | ||
5797 | In order to save time, we allocate an array to hold the section | |
5798 | pointers that we are interested in. As these sections get assigned | |
5799 | to a segment, they are removed from this array. */ | |
5800 | ||
a50b1753 | 5801 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 5802 | if (sections == NULL) |
b34976b6 | 5803 | return FALSE; |
252b5132 RH |
5804 | |
5805 | /* Step One: Scan for segment vs section LMA conflicts. | |
5806 | Also add the sections to the section array allocated above. | |
5807 | Also add the sections to the current segment. In the common | |
5808 | case, where the sections have not been moved, this means that | |
5809 | we have completely filled the segment, and there is nothing | |
5810 | more to do. */ | |
252b5132 | 5811 | isec = 0; |
72730e0c | 5812 | matching_lma = 0; |
252b5132 | 5813 | suggested_lma = 0; |
0067a569 AM |
5814 | first_matching_lma = TRUE; |
5815 | first_suggested_lma = TRUE; | |
252b5132 | 5816 | |
147d51c2 | 5817 | for (section = ibfd->sections; |
bc67d8a6 NC |
5818 | section != NULL; |
5819 | section = section->next) | |
147d51c2 L |
5820 | if (section == first_section) |
5821 | break; | |
5822 | ||
5823 | for (j = 0; section != NULL; section = section->next) | |
252b5132 | 5824 | { |
caf47ea6 | 5825 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 5826 | { |
bc67d8a6 NC |
5827 | output_section = section->output_section; |
5828 | ||
0067a569 | 5829 | sections[j++] = section; |
252b5132 RH |
5830 | |
5831 | /* The Solaris native linker always sets p_paddr to 0. | |
5832 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
5833 | correct value. Note - some backends require that |
5834 | p_paddr be left as zero. */ | |
5c44b38e | 5835 | if (!p_paddr_valid |
4455705d | 5836 | && segment->p_vaddr != 0 |
0067a569 | 5837 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 5838 | && isec == 0 |
bc67d8a6 | 5839 | && output_section->lma != 0 |
0067a569 AM |
5840 | && output_section->vma == (segment->p_vaddr |
5841 | + (map->includes_filehdr | |
5842 | ? iehdr->e_ehsize | |
5843 | : 0) | |
5844 | + (map->includes_phdrs | |
5845 | ? (iehdr->e_phnum | |
5846 | * iehdr->e_phentsize) | |
5847 | : 0))) | |
bc67d8a6 | 5848 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
5849 | |
5850 | /* Match up the physical address of the segment with the | |
5851 | LMA address of the output section. */ | |
bc67d8a6 | 5852 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 5853 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
5854 | || (bed->want_p_paddr_set_to_zero |
5855 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 5856 | { |
0067a569 AM |
5857 | if (first_matching_lma || output_section->lma < matching_lma) |
5858 | { | |
5859 | matching_lma = output_section->lma; | |
5860 | first_matching_lma = FALSE; | |
5861 | } | |
252b5132 RH |
5862 | |
5863 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 5864 | then it does not overlap any other section within that |
252b5132 | 5865 | segment. */ |
0067a569 AM |
5866 | map->sections[isec++] = output_section; |
5867 | } | |
5868 | else if (first_suggested_lma) | |
5869 | { | |
5870 | suggested_lma = output_section->lma; | |
5871 | first_suggested_lma = FALSE; | |
252b5132 | 5872 | } |
147d51c2 L |
5873 | |
5874 | if (j == section_count) | |
5875 | break; | |
252b5132 RH |
5876 | } |
5877 | } | |
5878 | ||
bc67d8a6 | 5879 | BFD_ASSERT (j == section_count); |
252b5132 RH |
5880 | |
5881 | /* Step Two: Adjust the physical address of the current segment, | |
5882 | if necessary. */ | |
bc67d8a6 | 5883 | if (isec == section_count) |
252b5132 RH |
5884 | { |
5885 | /* All of the sections fitted within the segment as currently | |
5886 | specified. This is the default case. Add the segment to | |
5887 | the list of built segments and carry on to process the next | |
5888 | program header in the input BFD. */ | |
bc67d8a6 | 5889 | map->count = section_count; |
c044fabd KH |
5890 | *pointer_to_map = map; |
5891 | pointer_to_map = &map->next; | |
08a40648 | 5892 | |
5c44b38e AM |
5893 | if (p_paddr_valid |
5894 | && !bed->want_p_paddr_set_to_zero | |
147d51c2 | 5895 | && matching_lma != map->p_paddr |
5c44b38e AM |
5896 | && !map->includes_filehdr |
5897 | && !map->includes_phdrs) | |
3271a814 NS |
5898 | /* There is some padding before the first section in the |
5899 | segment. So, we must account for that in the output | |
5900 | segment's vma. */ | |
5901 | map->p_vaddr_offset = matching_lma - map->p_paddr; | |
08a40648 | 5902 | |
252b5132 RH |
5903 | free (sections); |
5904 | continue; | |
5905 | } | |
252b5132 RH |
5906 | else |
5907 | { | |
0067a569 | 5908 | if (!first_matching_lma) |
72730e0c AM |
5909 | { |
5910 | /* At least one section fits inside the current segment. | |
5911 | Keep it, but modify its physical address to match the | |
5912 | LMA of the first section that fitted. */ | |
bc67d8a6 | 5913 | map->p_paddr = matching_lma; |
72730e0c AM |
5914 | } |
5915 | else | |
5916 | { | |
5917 | /* None of the sections fitted inside the current segment. | |
5918 | Change the current segment's physical address to match | |
5919 | the LMA of the first section. */ | |
bc67d8a6 | 5920 | map->p_paddr = suggested_lma; |
72730e0c AM |
5921 | } |
5922 | ||
bc67d8a6 NC |
5923 | /* Offset the segment physical address from the lma |
5924 | to allow for space taken up by elf headers. */ | |
5925 | if (map->includes_filehdr) | |
010c8431 AM |
5926 | { |
5927 | if (map->p_paddr >= iehdr->e_ehsize) | |
5928 | map->p_paddr -= iehdr->e_ehsize; | |
5929 | else | |
5930 | { | |
5931 | map->includes_filehdr = FALSE; | |
5932 | map->includes_phdrs = FALSE; | |
5933 | } | |
5934 | } | |
252b5132 | 5935 | |
bc67d8a6 NC |
5936 | if (map->includes_phdrs) |
5937 | { | |
010c8431 AM |
5938 | if (map->p_paddr >= iehdr->e_phnum * iehdr->e_phentsize) |
5939 | { | |
5940 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
5941 | ||
5942 | /* iehdr->e_phnum is just an estimate of the number | |
5943 | of program headers that we will need. Make a note | |
5944 | here of the number we used and the segment we chose | |
5945 | to hold these headers, so that we can adjust the | |
5946 | offset when we know the correct value. */ | |
5947 | phdr_adjust_num = iehdr->e_phnum; | |
5948 | phdr_adjust_seg = map; | |
5949 | } | |
5950 | else | |
5951 | map->includes_phdrs = FALSE; | |
bc67d8a6 | 5952 | } |
252b5132 RH |
5953 | } |
5954 | ||
5955 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 5956 | those that fit to the current segment and removing them from the |
252b5132 RH |
5957 | sections array; but making sure not to leave large gaps. Once all |
5958 | possible sections have been assigned to the current segment it is | |
5959 | added to the list of built segments and if sections still remain | |
5960 | to be assigned, a new segment is constructed before repeating | |
5961 | the loop. */ | |
5962 | isec = 0; | |
5963 | do | |
5964 | { | |
bc67d8a6 | 5965 | map->count = 0; |
252b5132 | 5966 | suggested_lma = 0; |
0067a569 | 5967 | first_suggested_lma = TRUE; |
252b5132 RH |
5968 | |
5969 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 5970 | for (j = 0; j < section_count; j++) |
252b5132 | 5971 | { |
bc67d8a6 | 5972 | section = sections[j]; |
252b5132 | 5973 | |
bc67d8a6 | 5974 | if (section == NULL) |
252b5132 RH |
5975 | continue; |
5976 | ||
bc67d8a6 | 5977 | output_section = section->output_section; |
252b5132 | 5978 | |
bc67d8a6 | 5979 | BFD_ASSERT (output_section != NULL); |
c044fabd | 5980 | |
bc67d8a6 NC |
5981 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5982 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 5983 | { |
bc67d8a6 | 5984 | if (map->count == 0) |
252b5132 RH |
5985 | { |
5986 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
5987 | the beginning of the segment, then something is |
5988 | wrong. */ | |
0067a569 AM |
5989 | if (output_section->lma |
5990 | != (map->p_paddr | |
5991 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
5992 | + (map->includes_phdrs | |
5993 | ? iehdr->e_phnum * iehdr->e_phentsize | |
5994 | : 0))) | |
252b5132 RH |
5995 | abort (); |
5996 | } | |
5997 | else | |
5998 | { | |
0067a569 | 5999 | asection *prev_sec; |
252b5132 | 6000 | |
bc67d8a6 | 6001 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
6002 | |
6003 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
6004 | and the start of this section is more than |
6005 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 6006 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 6007 | maxpagesize) |
caf47ea6 | 6008 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 6009 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 6010 | > output_section->lma)) |
252b5132 | 6011 | { |
0067a569 AM |
6012 | if (first_suggested_lma) |
6013 | { | |
6014 | suggested_lma = output_section->lma; | |
6015 | first_suggested_lma = FALSE; | |
6016 | } | |
252b5132 RH |
6017 | |
6018 | continue; | |
6019 | } | |
6020 | } | |
6021 | ||
bc67d8a6 | 6022 | map->sections[map->count++] = output_section; |
252b5132 RH |
6023 | ++isec; |
6024 | sections[j] = NULL; | |
b34976b6 | 6025 | section->segment_mark = TRUE; |
252b5132 | 6026 | } |
0067a569 AM |
6027 | else if (first_suggested_lma) |
6028 | { | |
6029 | suggested_lma = output_section->lma; | |
6030 | first_suggested_lma = FALSE; | |
6031 | } | |
252b5132 RH |
6032 | } |
6033 | ||
bc67d8a6 | 6034 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
6035 | |
6036 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
6037 | *pointer_to_map = map; |
6038 | pointer_to_map = &map->next; | |
252b5132 | 6039 | |
bc67d8a6 | 6040 | if (isec < section_count) |
252b5132 RH |
6041 | { |
6042 | /* We still have not allocated all of the sections to | |
6043 | segments. Create a new segment here, initialise it | |
6044 | and carry on looping. */ | |
dc810e39 AM |
6045 | amt = sizeof (struct elf_segment_map); |
6046 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 6047 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6048 | if (map == NULL) |
5ed6aba4 NC |
6049 | { |
6050 | free (sections); | |
6051 | return FALSE; | |
6052 | } | |
252b5132 RH |
6053 | |
6054 | /* Initialise the fields of the segment map. Set the physical | |
6055 | physical address to the LMA of the first section that has | |
6056 | not yet been assigned. */ | |
0067a569 AM |
6057 | map->next = NULL; |
6058 | map->p_type = segment->p_type; | |
6059 | map->p_flags = segment->p_flags; | |
6060 | map->p_flags_valid = 1; | |
6061 | map->p_paddr = suggested_lma; | |
5c44b38e | 6062 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 6063 | map->includes_filehdr = 0; |
0067a569 | 6064 | map->includes_phdrs = 0; |
252b5132 RH |
6065 | } |
6066 | } | |
bc67d8a6 | 6067 | while (isec < section_count); |
252b5132 RH |
6068 | |
6069 | free (sections); | |
6070 | } | |
6071 | ||
bc67d8a6 NC |
6072 | elf_tdata (obfd)->segment_map = map_first; |
6073 | ||
6074 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 6075 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
6076 | the offset if necessary. */ |
6077 | if (phdr_adjust_seg != NULL) | |
6078 | { | |
6079 | unsigned int count; | |
c044fabd | 6080 | |
bc67d8a6 | 6081 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 6082 | count++; |
252b5132 | 6083 | |
bc67d8a6 NC |
6084 | if (count > phdr_adjust_num) |
6085 | phdr_adjust_seg->p_paddr | |
6086 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
6087 | } | |
c044fabd | 6088 | |
bc67d8a6 | 6089 | #undef SEGMENT_END |
eecdbe52 | 6090 | #undef SECTION_SIZE |
bc67d8a6 NC |
6091 | #undef IS_CONTAINED_BY_VMA |
6092 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 6093 | #undef IS_NOTE |
252b5132 | 6094 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 6095 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 6096 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
6097 | #undef INCLUDE_SECTION_IN_SEGMENT |
6098 | #undef SEGMENT_AFTER_SEGMENT | |
6099 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 6100 | return TRUE; |
252b5132 RH |
6101 | } |
6102 | ||
84d1d650 L |
6103 | /* Copy ELF program header information. */ |
6104 | ||
6105 | static bfd_boolean | |
6106 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
6107 | { | |
6108 | Elf_Internal_Ehdr *iehdr; | |
6109 | struct elf_segment_map *map; | |
6110 | struct elf_segment_map *map_first; | |
6111 | struct elf_segment_map **pointer_to_map; | |
6112 | Elf_Internal_Phdr *segment; | |
6113 | unsigned int i; | |
6114 | unsigned int num_segments; | |
6115 | bfd_boolean phdr_included = FALSE; | |
88967714 | 6116 | bfd_boolean p_paddr_valid; |
84d1d650 L |
6117 | |
6118 | iehdr = elf_elfheader (ibfd); | |
6119 | ||
6120 | map_first = NULL; | |
6121 | pointer_to_map = &map_first; | |
6122 | ||
88967714 AM |
6123 | /* If all the segment p_paddr fields are zero, don't set |
6124 | map->p_paddr_valid. */ | |
6125 | p_paddr_valid = FALSE; | |
84d1d650 | 6126 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
6127 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6128 | i < num_segments; | |
6129 | i++, segment++) | |
6130 | if (segment->p_paddr != 0) | |
6131 | { | |
6132 | p_paddr_valid = TRUE; | |
6133 | break; | |
6134 | } | |
6135 | ||
84d1d650 L |
6136 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6137 | i < num_segments; | |
6138 | i++, segment++) | |
6139 | { | |
6140 | asection *section; | |
6141 | unsigned int section_count; | |
6142 | bfd_size_type amt; | |
6143 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 6144 | asection *first_section = NULL; |
a76e6f2f | 6145 | asection *lowest_section; |
84d1d650 | 6146 | |
84d1d650 L |
6147 | /* Compute how many sections are in this segment. */ |
6148 | for (section = ibfd->sections, section_count = 0; | |
6149 | section != NULL; | |
6150 | section = section->next) | |
6151 | { | |
6152 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6153 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 6154 | { |
a76e6f2f AM |
6155 | if (first_section == NULL) |
6156 | first_section = section; | |
3271a814 NS |
6157 | section_count++; |
6158 | } | |
84d1d650 L |
6159 | } |
6160 | ||
6161 | /* Allocate a segment map big enough to contain | |
6162 | all of the sections we have selected. */ | |
6163 | amt = sizeof (struct elf_segment_map); | |
6164 | if (section_count != 0) | |
6165 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6166 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
6167 | if (map == NULL) |
6168 | return FALSE; | |
6169 | ||
6170 | /* Initialize the fields of the output segment map with the | |
6171 | input segment. */ | |
6172 | map->next = NULL; | |
6173 | map->p_type = segment->p_type; | |
6174 | map->p_flags = segment->p_flags; | |
6175 | map->p_flags_valid = 1; | |
6176 | map->p_paddr = segment->p_paddr; | |
88967714 | 6177 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
6178 | map->p_align = segment->p_align; |
6179 | map->p_align_valid = 1; | |
3271a814 | 6180 | map->p_vaddr_offset = 0; |
84d1d650 | 6181 | |
04c3a755 NS |
6182 | if (map->p_type == PT_GNU_RELRO |
6183 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
6184 | { |
6185 | /* The PT_GNU_RELRO segment may contain the first a few | |
6186 | bytes in the .got.plt section even if the whole .got.plt | |
6187 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
6188 | change the size of the PT_GNU_RELRO segment. |
6189 | Similarly, PT_GNU_STACK size is significant on uclinux | |
6190 | systems. */ | |
9433b9b1 | 6191 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
6192 | map->p_size_valid = 1; |
6193 | } | |
6194 | ||
84d1d650 L |
6195 | /* Determine if this segment contains the ELF file header |
6196 | and if it contains the program headers themselves. */ | |
6197 | map->includes_filehdr = (segment->p_offset == 0 | |
6198 | && segment->p_filesz >= iehdr->e_ehsize); | |
6199 | ||
6200 | map->includes_phdrs = 0; | |
6201 | if (! phdr_included || segment->p_type != PT_LOAD) | |
6202 | { | |
6203 | map->includes_phdrs = | |
6204 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6205 | && (segment->p_offset + segment->p_filesz | |
6206 | >= ((bfd_vma) iehdr->e_phoff | |
6207 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
6208 | ||
6209 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
6210 | phdr_included = TRUE; | |
6211 | } | |
6212 | ||
a76e6f2f | 6213 | lowest_section = first_section; |
84d1d650 L |
6214 | if (section_count != 0) |
6215 | { | |
6216 | unsigned int isec = 0; | |
6217 | ||
53020534 | 6218 | for (section = first_section; |
84d1d650 L |
6219 | section != NULL; |
6220 | section = section->next) | |
6221 | { | |
6222 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6223 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
6224 | { |
6225 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
6226 | if (section->lma < lowest_section->lma) |
6227 | lowest_section = section; | |
6228 | if ((section->flags & SEC_ALLOC) != 0) | |
6229 | { | |
6230 | bfd_vma seg_off; | |
6231 | ||
6232 | /* Section lmas are set up from PT_LOAD header | |
6233 | p_paddr in _bfd_elf_make_section_from_shdr. | |
6234 | If this header has a p_paddr that disagrees | |
6235 | with the section lma, flag the p_paddr as | |
6236 | invalid. */ | |
6237 | if ((section->flags & SEC_LOAD) != 0) | |
6238 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
6239 | else | |
6240 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
6241 | if (section->lma - segment->p_paddr != seg_off) | |
6242 | map->p_paddr_valid = FALSE; | |
6243 | } | |
53020534 L |
6244 | if (isec == section_count) |
6245 | break; | |
6246 | } | |
84d1d650 L |
6247 | } |
6248 | } | |
6249 | ||
a76e6f2f AM |
6250 | if (map->includes_filehdr && lowest_section != NULL) |
6251 | /* We need to keep the space used by the headers fixed. */ | |
6252 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 6253 | |
a76e6f2f AM |
6254 | if (!map->includes_phdrs |
6255 | && !map->includes_filehdr | |
6256 | && map->p_paddr_valid) | |
6257 | /* There is some other padding before the first section. */ | |
6258 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
6259 | - segment->p_paddr); | |
6260 | ||
84d1d650 L |
6261 | map->count = section_count; |
6262 | *pointer_to_map = map; | |
6263 | pointer_to_map = &map->next; | |
6264 | } | |
6265 | ||
6266 | elf_tdata (obfd)->segment_map = map_first; | |
6267 | return TRUE; | |
6268 | } | |
6269 | ||
6270 | /* Copy private BFD data. This copies or rewrites ELF program header | |
6271 | information. */ | |
6272 | ||
6273 | static bfd_boolean | |
6274 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
6275 | { | |
84d1d650 L |
6276 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
6277 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6278 | return TRUE; | |
6279 | ||
6280 | if (elf_tdata (ibfd)->phdr == NULL) | |
6281 | return TRUE; | |
6282 | ||
6283 | if (ibfd->xvec == obfd->xvec) | |
6284 | { | |
cb3ff1e5 NC |
6285 | /* Check to see if any sections in the input BFD |
6286 | covered by ELF program header have changed. */ | |
d55ce4e2 | 6287 | Elf_Internal_Phdr *segment; |
84d1d650 L |
6288 | asection *section, *osec; |
6289 | unsigned int i, num_segments; | |
6290 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
6291 | const struct elf_backend_data *bed; |
6292 | ||
6293 | bed = get_elf_backend_data (ibfd); | |
6294 | ||
6295 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
6296 | if (bed->want_p_paddr_set_to_zero) | |
6297 | goto rewrite; | |
84d1d650 L |
6298 | |
6299 | /* Initialize the segment mark field. */ | |
6300 | for (section = obfd->sections; section != NULL; | |
6301 | section = section->next) | |
6302 | section->segment_mark = FALSE; | |
6303 | ||
6304 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
6305 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6306 | i < num_segments; | |
6307 | i++, segment++) | |
6308 | { | |
5f6999aa NC |
6309 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
6310 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
6311 | which severly confuses things, so always regenerate the segment | |
6312 | map in this case. */ | |
6313 | if (segment->p_paddr == 0 | |
6314 | && segment->p_memsz == 0 | |
6315 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 6316 | goto rewrite; |
5f6999aa | 6317 | |
84d1d650 L |
6318 | for (section = ibfd->sections; |
6319 | section != NULL; section = section->next) | |
6320 | { | |
6321 | /* We mark the output section so that we know it comes | |
6322 | from the input BFD. */ | |
6323 | osec = section->output_section; | |
6324 | if (osec) | |
6325 | osec->segment_mark = TRUE; | |
6326 | ||
6327 | /* Check if this section is covered by the segment. */ | |
6328 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6329 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
6330 | { |
6331 | /* FIXME: Check if its output section is changed or | |
6332 | removed. What else do we need to check? */ | |
6333 | if (osec == NULL | |
6334 | || section->flags != osec->flags | |
6335 | || section->lma != osec->lma | |
6336 | || section->vma != osec->vma | |
6337 | || section->size != osec->size | |
6338 | || section->rawsize != osec->rawsize | |
6339 | || section->alignment_power != osec->alignment_power) | |
6340 | goto rewrite; | |
6341 | } | |
6342 | } | |
6343 | } | |
6344 | ||
cb3ff1e5 | 6345 | /* Check to see if any output section do not come from the |
84d1d650 L |
6346 | input BFD. */ |
6347 | for (section = obfd->sections; section != NULL; | |
6348 | section = section->next) | |
6349 | { | |
6350 | if (section->segment_mark == FALSE) | |
6351 | goto rewrite; | |
6352 | else | |
6353 | section->segment_mark = FALSE; | |
6354 | } | |
6355 | ||
6356 | return copy_elf_program_header (ibfd, obfd); | |
6357 | } | |
6358 | ||
6359 | rewrite: | |
f1d85785 L |
6360 | if (ibfd->xvec == obfd->xvec) |
6361 | { | |
6362 | /* When rewriting program header, set the output maxpagesize to | |
6363 | the maximum alignment of input PT_LOAD segments. */ | |
6364 | Elf_Internal_Phdr *segment; | |
6365 | unsigned int i; | |
6366 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
6367 | bfd_vma maxpagesize = 0; | |
6368 | ||
6369 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6370 | i < num_segments; | |
6371 | i++, segment++) | |
6372 | if (segment->p_type == PT_LOAD | |
6373 | && maxpagesize < segment->p_align) | |
6374 | maxpagesize = segment->p_align; | |
6375 | ||
6376 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
6377 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
6378 | } | |
6379 | ||
84d1d650 L |
6380 | return rewrite_elf_program_header (ibfd, obfd); |
6381 | } | |
6382 | ||
ccd2ec6a L |
6383 | /* Initialize private output section information from input section. */ |
6384 | ||
6385 | bfd_boolean | |
6386 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
6387 | asection *isec, | |
6388 | bfd *obfd, | |
6389 | asection *osec, | |
6390 | struct bfd_link_info *link_info) | |
6391 | ||
6392 | { | |
6393 | Elf_Internal_Shdr *ihdr, *ohdr; | |
dfa7b0b8 | 6394 | bfd_boolean final_link = link_info != NULL && !link_info->relocatable; |
ccd2ec6a L |
6395 | |
6396 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6397 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
6398 | return TRUE; | |
6399 | ||
ba85c43e NC |
6400 | BFD_ASSERT (elf_section_data (osec) != NULL); |
6401 | ||
dfa7b0b8 AM |
6402 | /* For objcopy and relocatable link, don't copy the output ELF |
6403 | section type from input if the output BFD section flags have been | |
6404 | set to something different. For a final link allow some flags | |
6405 | that the linker clears to differ. */ | |
42bb2e33 | 6406 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
6407 | && (osec->flags == isec->flags |
6408 | || (final_link | |
6409 | && ((osec->flags ^ isec->flags) | |
0814be7d | 6410 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 6411 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
6412 | |
6413 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
6414 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
6415 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a L |
6416 | |
6417 | /* Set things up for objcopy and relocatable link. The output | |
6418 | SHT_GROUP section will have its elf_next_in_group pointing back | |
6419 | to the input group members. Ignore linker created group section. | |
6420 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
dfa7b0b8 | 6421 | if (!final_link) |
ccd2ec6a L |
6422 | { |
6423 | if (elf_sec_group (isec) == NULL | |
6424 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0) | |
6425 | { | |
6426 | if (elf_section_flags (isec) & SHF_GROUP) | |
6427 | elf_section_flags (osec) |= SHF_GROUP; | |
6428 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
9659de1c | 6429 | elf_section_data (osec)->group = elf_section_data (isec)->group; |
ccd2ec6a L |
6430 | } |
6431 | } | |
6432 | ||
6433 | ihdr = &elf_section_data (isec)->this_hdr; | |
6434 | ||
6435 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
6436 | don't use the output section of the linked-to section since it | |
6437 | may be NULL at this point. */ | |
6438 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
6439 | { | |
6440 | ohdr = &elf_section_data (osec)->this_hdr; | |
6441 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
6442 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
6443 | } | |
6444 | ||
6445 | osec->use_rela_p = isec->use_rela_p; | |
6446 | ||
6447 | return TRUE; | |
6448 | } | |
6449 | ||
252b5132 RH |
6450 | /* Copy private section information. This copies over the entsize |
6451 | field, and sometimes the info field. */ | |
6452 | ||
b34976b6 | 6453 | bfd_boolean |
217aa764 AM |
6454 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
6455 | asection *isec, | |
6456 | bfd *obfd, | |
6457 | asection *osec) | |
252b5132 RH |
6458 | { |
6459 | Elf_Internal_Shdr *ihdr, *ohdr; | |
6460 | ||
6461 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6462 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 6463 | return TRUE; |
252b5132 | 6464 | |
252b5132 RH |
6465 | ihdr = &elf_section_data (isec)->this_hdr; |
6466 | ohdr = &elf_section_data (osec)->this_hdr; | |
6467 | ||
6468 | ohdr->sh_entsize = ihdr->sh_entsize; | |
6469 | ||
6470 | if (ihdr->sh_type == SHT_SYMTAB | |
6471 | || ihdr->sh_type == SHT_DYNSYM | |
6472 | || ihdr->sh_type == SHT_GNU_verneed | |
6473 | || ihdr->sh_type == SHT_GNU_verdef) | |
6474 | ohdr->sh_info = ihdr->sh_info; | |
6475 | ||
ccd2ec6a L |
6476 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
6477 | NULL); | |
252b5132 RH |
6478 | } |
6479 | ||
d0bf826b AM |
6480 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
6481 | necessary if we are removing either the SHT_GROUP section or any of | |
6482 | the group member sections. DISCARDED is the value that a section's | |
6483 | output_section has if the section will be discarded, NULL when this | |
6484 | function is called from objcopy, bfd_abs_section_ptr when called | |
6485 | from the linker. */ | |
80fccad2 BW |
6486 | |
6487 | bfd_boolean | |
d0bf826b | 6488 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 6489 | { |
30288845 AM |
6490 | asection *isec; |
6491 | ||
30288845 | 6492 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 6493 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
6494 | { |
6495 | asection *first = elf_next_in_group (isec); | |
6496 | asection *s = first; | |
d0bf826b AM |
6497 | bfd_size_type removed = 0; |
6498 | ||
30288845 AM |
6499 | while (s != NULL) |
6500 | { | |
415f38a6 AM |
6501 | /* If this member section is being output but the |
6502 | SHT_GROUP section is not, then clear the group info | |
6503 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
6504 | if (s->output_section != discarded |
6505 | && isec->output_section == discarded) | |
30288845 AM |
6506 | { |
6507 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
6508 | elf_group_name (s->output_section) = NULL; | |
6509 | } | |
415f38a6 AM |
6510 | /* Conversely, if the member section is not being output |
6511 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
6512 | else if (s->output_section == discarded |
6513 | && isec->output_section != discarded) | |
6514 | removed += 4; | |
30288845 AM |
6515 | s = elf_next_in_group (s); |
6516 | if (s == first) | |
6517 | break; | |
6518 | } | |
d0bf826b AM |
6519 | if (removed != 0) |
6520 | { | |
6521 | if (discarded != NULL) | |
6522 | { | |
6523 | /* If we've been called for ld -r, then we need to | |
6524 | adjust the input section size. This function may | |
6525 | be called multiple times, so save the original | |
6526 | size. */ | |
6527 | if (isec->rawsize == 0) | |
6528 | isec->rawsize = isec->size; | |
6529 | isec->size = isec->rawsize - removed; | |
6530 | } | |
6531 | else | |
6532 | { | |
6533 | /* Adjust the output section size when called from | |
6534 | objcopy. */ | |
6535 | isec->output_section->size -= removed; | |
6536 | } | |
6537 | } | |
30288845 AM |
6538 | } |
6539 | ||
80fccad2 BW |
6540 | return TRUE; |
6541 | } | |
6542 | ||
d0bf826b AM |
6543 | /* Copy private header information. */ |
6544 | ||
6545 | bfd_boolean | |
6546 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
6547 | { | |
6548 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6549 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6550 | return TRUE; | |
6551 | ||
6552 | /* Copy over private BFD data if it has not already been copied. | |
6553 | This must be done here, rather than in the copy_private_bfd_data | |
6554 | entry point, because the latter is called after the section | |
6555 | contents have been set, which means that the program headers have | |
6556 | already been worked out. */ | |
6557 | if (elf_tdata (obfd)->segment_map == NULL && elf_tdata (ibfd)->phdr != NULL) | |
6558 | { | |
6559 | if (! copy_private_bfd_data (ibfd, obfd)) | |
6560 | return FALSE; | |
6561 | } | |
6562 | ||
6563 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
6564 | } | |
6565 | ||
252b5132 RH |
6566 | /* Copy private symbol information. If this symbol is in a section |
6567 | which we did not map into a BFD section, try to map the section | |
6568 | index correctly. We use special macro definitions for the mapped | |
6569 | section indices; these definitions are interpreted by the | |
6570 | swap_out_syms function. */ | |
6571 | ||
9ad5cbcf AM |
6572 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
6573 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
6574 | #define MAP_STRTAB (SHN_HIOS + 3) | |
6575 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
6576 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 6577 | |
b34976b6 | 6578 | bfd_boolean |
217aa764 AM |
6579 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
6580 | asymbol *isymarg, | |
6581 | bfd *obfd, | |
6582 | asymbol *osymarg) | |
252b5132 RH |
6583 | { |
6584 | elf_symbol_type *isym, *osym; | |
6585 | ||
6586 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6587 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 6588 | return TRUE; |
252b5132 RH |
6589 | |
6590 | isym = elf_symbol_from (ibfd, isymarg); | |
6591 | osym = elf_symbol_from (obfd, osymarg); | |
6592 | ||
6593 | if (isym != NULL | |
8424d8f5 | 6594 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
6595 | && osym != NULL |
6596 | && bfd_is_abs_section (isym->symbol.section)) | |
6597 | { | |
6598 | unsigned int shndx; | |
6599 | ||
6600 | shndx = isym->internal_elf_sym.st_shndx; | |
6601 | if (shndx == elf_onesymtab (ibfd)) | |
6602 | shndx = MAP_ONESYMTAB; | |
6603 | else if (shndx == elf_dynsymtab (ibfd)) | |
6604 | shndx = MAP_DYNSYMTAB; | |
6605 | else if (shndx == elf_tdata (ibfd)->strtab_section) | |
6606 | shndx = MAP_STRTAB; | |
6607 | else if (shndx == elf_tdata (ibfd)->shstrtab_section) | |
6608 | shndx = MAP_SHSTRTAB; | |
9ad5cbcf AM |
6609 | else if (shndx == elf_tdata (ibfd)->symtab_shndx_section) |
6610 | shndx = MAP_SYM_SHNDX; | |
252b5132 RH |
6611 | osym->internal_elf_sym.st_shndx = shndx; |
6612 | } | |
6613 | ||
b34976b6 | 6614 | return TRUE; |
252b5132 RH |
6615 | } |
6616 | ||
6617 | /* Swap out the symbols. */ | |
6618 | ||
b34976b6 | 6619 | static bfd_boolean |
217aa764 AM |
6620 | swap_out_syms (bfd *abfd, |
6621 | struct bfd_strtab_hash **sttp, | |
6622 | int relocatable_p) | |
252b5132 | 6623 | { |
9c5bfbb7 | 6624 | const struct elf_backend_data *bed; |
079e9a2f AM |
6625 | int symcount; |
6626 | asymbol **syms; | |
6627 | struct bfd_strtab_hash *stt; | |
6628 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 6629 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 6630 | Elf_Internal_Shdr *symstrtab_hdr; |
f075ee0c AM |
6631 | bfd_byte *outbound_syms; |
6632 | bfd_byte *outbound_shndx; | |
079e9a2f AM |
6633 | int idx; |
6634 | bfd_size_type amt; | |
174fd7f9 | 6635 | bfd_boolean name_local_sections; |
252b5132 RH |
6636 | |
6637 | if (!elf_map_symbols (abfd)) | |
b34976b6 | 6638 | return FALSE; |
252b5132 | 6639 | |
c044fabd | 6640 | /* Dump out the symtabs. */ |
079e9a2f AM |
6641 | stt = _bfd_elf_stringtab_init (); |
6642 | if (stt == NULL) | |
b34976b6 | 6643 | return FALSE; |
252b5132 | 6644 | |
079e9a2f AM |
6645 | bed = get_elf_backend_data (abfd); |
6646 | symcount = bfd_get_symcount (abfd); | |
6647 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6648 | symtab_hdr->sh_type = SHT_SYMTAB; | |
6649 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
6650 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
6651 | symtab_hdr->sh_info = elf_num_locals (abfd) + 1; | |
72de5009 | 6652 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
6653 | |
6654 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
6655 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
6656 | ||
a50b1753 NC |
6657 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
6658 | bed->s->sizeof_sym); | |
079e9a2f | 6659 | if (outbound_syms == NULL) |
5ed6aba4 NC |
6660 | { |
6661 | _bfd_stringtab_free (stt); | |
6662 | return FALSE; | |
6663 | } | |
217aa764 | 6664 | symtab_hdr->contents = outbound_syms; |
252b5132 | 6665 | |
9ad5cbcf AM |
6666 | outbound_shndx = NULL; |
6667 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
6668 | if (symtab_shndx_hdr->sh_name != 0) | |
6669 | { | |
6670 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
a50b1753 NC |
6671 | outbound_shndx = (bfd_byte *) |
6672 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
9ad5cbcf | 6673 | if (outbound_shndx == NULL) |
5ed6aba4 NC |
6674 | { |
6675 | _bfd_stringtab_free (stt); | |
6676 | return FALSE; | |
6677 | } | |
6678 | ||
9ad5cbcf AM |
6679 | symtab_shndx_hdr->contents = outbound_shndx; |
6680 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
6681 | symtab_shndx_hdr->sh_size = amt; | |
6682 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
6683 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
6684 | } | |
6685 | ||
589e6347 | 6686 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
6687 | { |
6688 | /* Fill in zeroth symbol and swap it out. */ | |
6689 | Elf_Internal_Sym sym; | |
6690 | sym.st_name = 0; | |
6691 | sym.st_value = 0; | |
6692 | sym.st_size = 0; | |
6693 | sym.st_info = 0; | |
6694 | sym.st_other = 0; | |
6695 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 6696 | sym.st_target_internal = 0; |
9ad5cbcf | 6697 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6698 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6699 | if (outbound_shndx != NULL) |
6700 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6701 | } |
252b5132 | 6702 | |
174fd7f9 RS |
6703 | name_local_sections |
6704 | = (bed->elf_backend_name_local_section_symbols | |
6705 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
6706 | ||
079e9a2f AM |
6707 | syms = bfd_get_outsymbols (abfd); |
6708 | for (idx = 0; idx < symcount; idx++) | |
252b5132 | 6709 | { |
252b5132 | 6710 | Elf_Internal_Sym sym; |
079e9a2f AM |
6711 | bfd_vma value = syms[idx]->value; |
6712 | elf_symbol_type *type_ptr; | |
6713 | flagword flags = syms[idx]->flags; | |
6714 | int type; | |
252b5132 | 6715 | |
174fd7f9 RS |
6716 | if (!name_local_sections |
6717 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
6718 | { |
6719 | /* Local section symbols have no name. */ | |
6720 | sym.st_name = 0; | |
6721 | } | |
6722 | else | |
6723 | { | |
6724 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |
6725 | syms[idx]->name, | |
b34976b6 | 6726 | TRUE, FALSE); |
079e9a2f | 6727 | if (sym.st_name == (unsigned long) -1) |
5ed6aba4 NC |
6728 | { |
6729 | _bfd_stringtab_free (stt); | |
6730 | return FALSE; | |
6731 | } | |
079e9a2f | 6732 | } |
252b5132 | 6733 | |
079e9a2f | 6734 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 6735 | |
079e9a2f AM |
6736 | if ((flags & BSF_SECTION_SYM) == 0 |
6737 | && bfd_is_com_section (syms[idx]->section)) | |
6738 | { | |
6739 | /* ELF common symbols put the alignment into the `value' field, | |
6740 | and the size into the `size' field. This is backwards from | |
6741 | how BFD handles it, so reverse it here. */ | |
6742 | sym.st_size = value; | |
6743 | if (type_ptr == NULL | |
6744 | || type_ptr->internal_elf_sym.st_value == 0) | |
6745 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
6746 | else | |
6747 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
6748 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
6749 | (abfd, syms[idx]->section); | |
6750 | } | |
6751 | else | |
6752 | { | |
6753 | asection *sec = syms[idx]->section; | |
cb33740c | 6754 | unsigned int shndx; |
252b5132 | 6755 | |
079e9a2f AM |
6756 | if (sec->output_section) |
6757 | { | |
6758 | value += sec->output_offset; | |
6759 | sec = sec->output_section; | |
6760 | } | |
589e6347 | 6761 | |
079e9a2f AM |
6762 | /* Don't add in the section vma for relocatable output. */ |
6763 | if (! relocatable_p) | |
6764 | value += sec->vma; | |
6765 | sym.st_value = value; | |
6766 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
6767 | ||
6768 | if (bfd_is_abs_section (sec) | |
6769 | && type_ptr != NULL | |
6770 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
6771 | { | |
6772 | /* This symbol is in a real ELF section which we did | |
6773 | not create as a BFD section. Undo the mapping done | |
6774 | by copy_private_symbol_data. */ | |
6775 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
6776 | switch (shndx) | |
6777 | { | |
6778 | case MAP_ONESYMTAB: | |
6779 | shndx = elf_onesymtab (abfd); | |
6780 | break; | |
6781 | case MAP_DYNSYMTAB: | |
6782 | shndx = elf_dynsymtab (abfd); | |
6783 | break; | |
6784 | case MAP_STRTAB: | |
6785 | shndx = elf_tdata (abfd)->strtab_section; | |
6786 | break; | |
6787 | case MAP_SHSTRTAB: | |
6788 | shndx = elf_tdata (abfd)->shstrtab_section; | |
6789 | break; | |
9ad5cbcf AM |
6790 | case MAP_SYM_SHNDX: |
6791 | shndx = elf_tdata (abfd)->symtab_shndx_section; | |
6792 | break; | |
079e9a2f | 6793 | default: |
15bc576a | 6794 | shndx = SHN_ABS; |
079e9a2f AM |
6795 | break; |
6796 | } | |
6797 | } | |
6798 | else | |
6799 | { | |
6800 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 6801 | |
cb33740c | 6802 | if (shndx == SHN_BAD) |
079e9a2f AM |
6803 | { |
6804 | asection *sec2; | |
6805 | ||
6806 | /* Writing this would be a hell of a lot easier if | |
6807 | we had some decent documentation on bfd, and | |
6808 | knew what to expect of the library, and what to | |
6809 | demand of applications. For example, it | |
6810 | appears that `objcopy' might not set the | |
6811 | section of a symbol to be a section that is | |
6812 | actually in the output file. */ | |
6813 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
589e6347 NC |
6814 | if (sec2 == NULL) |
6815 | { | |
6816 | _bfd_error_handler (_("\ | |
6817 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
6818 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
6819 | sec->name); | |
811072d8 | 6820 | bfd_set_error (bfd_error_invalid_operation); |
5ed6aba4 | 6821 | _bfd_stringtab_free (stt); |
589e6347 NC |
6822 | return FALSE; |
6823 | } | |
811072d8 | 6824 | |
079e9a2f | 6825 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); |
cb33740c | 6826 | BFD_ASSERT (shndx != SHN_BAD); |
079e9a2f AM |
6827 | } |
6828 | } | |
252b5132 | 6829 | |
079e9a2f AM |
6830 | sym.st_shndx = shndx; |
6831 | } | |
252b5132 | 6832 | |
13ae64f3 JJ |
6833 | if ((flags & BSF_THREAD_LOCAL) != 0) |
6834 | type = STT_TLS; | |
d8045f23 NC |
6835 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
6836 | type = STT_GNU_IFUNC; | |
13ae64f3 | 6837 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
6838 | type = STT_FUNC; |
6839 | else if ((flags & BSF_OBJECT) != 0) | |
6840 | type = STT_OBJECT; | |
d9352518 DB |
6841 | else if ((flags & BSF_RELC) != 0) |
6842 | type = STT_RELC; | |
6843 | else if ((flags & BSF_SRELC) != 0) | |
6844 | type = STT_SRELC; | |
079e9a2f AM |
6845 | else |
6846 | type = STT_NOTYPE; | |
252b5132 | 6847 | |
13ae64f3 JJ |
6848 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
6849 | type = STT_TLS; | |
6850 | ||
589e6347 | 6851 | /* Processor-specific types. */ |
079e9a2f AM |
6852 | if (type_ptr != NULL |
6853 | && bed->elf_backend_get_symbol_type) | |
6854 | type = ((*bed->elf_backend_get_symbol_type) | |
6855 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 6856 | |
079e9a2f AM |
6857 | if (flags & BSF_SECTION_SYM) |
6858 | { | |
6859 | if (flags & BSF_GLOBAL) | |
6860 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
6861 | else | |
6862 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
6863 | } | |
6864 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 6865 | { |
504b7d20 | 6866 | #ifdef USE_STT_COMMON |
0a40daed MK |
6867 | if (type == STT_OBJECT) |
6868 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_COMMON); | |
6869 | else | |
504b7d20 | 6870 | #endif |
c91e322a | 6871 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); |
0a40daed | 6872 | } |
079e9a2f AM |
6873 | else if (bfd_is_und_section (syms[idx]->section)) |
6874 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
6875 | ? STB_WEAK | |
6876 | : STB_GLOBAL), | |
6877 | type); | |
6878 | else if (flags & BSF_FILE) | |
6879 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
6880 | else | |
6881 | { | |
6882 | int bind = STB_LOCAL; | |
252b5132 | 6883 | |
079e9a2f AM |
6884 | if (flags & BSF_LOCAL) |
6885 | bind = STB_LOCAL; | |
3e7a7d11 NC |
6886 | else if (flags & BSF_GNU_UNIQUE) |
6887 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
6888 | else if (flags & BSF_WEAK) |
6889 | bind = STB_WEAK; | |
6890 | else if (flags & BSF_GLOBAL) | |
6891 | bind = STB_GLOBAL; | |
252b5132 | 6892 | |
079e9a2f AM |
6893 | sym.st_info = ELF_ST_INFO (bind, type); |
6894 | } | |
252b5132 | 6895 | |
079e9a2f | 6896 | if (type_ptr != NULL) |
35fc36a8 RS |
6897 | { |
6898 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
6899 | sym.st_target_internal | |
6900 | = type_ptr->internal_elf_sym.st_target_internal; | |
6901 | } | |
079e9a2f | 6902 | else |
35fc36a8 RS |
6903 | { |
6904 | sym.st_other = 0; | |
6905 | sym.st_target_internal = 0; | |
6906 | } | |
252b5132 | 6907 | |
9ad5cbcf | 6908 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6909 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6910 | if (outbound_shndx != NULL) |
6911 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6912 | } |
252b5132 | 6913 | |
079e9a2f AM |
6914 | *sttp = stt; |
6915 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |
6916 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
252b5132 | 6917 | |
079e9a2f AM |
6918 | symstrtab_hdr->sh_flags = 0; |
6919 | symstrtab_hdr->sh_addr = 0; | |
6920 | symstrtab_hdr->sh_entsize = 0; | |
6921 | symstrtab_hdr->sh_link = 0; | |
6922 | symstrtab_hdr->sh_info = 0; | |
6923 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 6924 | |
b34976b6 | 6925 | return TRUE; |
252b5132 RH |
6926 | } |
6927 | ||
6928 | /* Return the number of bytes required to hold the symtab vector. | |
6929 | ||
6930 | Note that we base it on the count plus 1, since we will null terminate | |
6931 | the vector allocated based on this size. However, the ELF symbol table | |
6932 | always has a dummy entry as symbol #0, so it ends up even. */ | |
6933 | ||
6934 | long | |
217aa764 | 6935 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
6936 | { |
6937 | long symcount; | |
6938 | long symtab_size; | |
6939 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
6940 | ||
6941 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
6942 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
6943 | if (symcount > 0) | |
6944 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
6945 | |
6946 | return symtab_size; | |
6947 | } | |
6948 | ||
6949 | long | |
217aa764 | 6950 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
6951 | { |
6952 | long symcount; | |
6953 | long symtab_size; | |
6954 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
6955 | ||
6956 | if (elf_dynsymtab (abfd) == 0) | |
6957 | { | |
6958 | bfd_set_error (bfd_error_invalid_operation); | |
6959 | return -1; | |
6960 | } | |
6961 | ||
6962 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
6963 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
6964 | if (symcount > 0) | |
6965 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
6966 | |
6967 | return symtab_size; | |
6968 | } | |
6969 | ||
6970 | long | |
217aa764 AM |
6971 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
6972 | sec_ptr asect) | |
252b5132 RH |
6973 | { |
6974 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
6975 | } | |
6976 | ||
6977 | /* Canonicalize the relocs. */ | |
6978 | ||
6979 | long | |
217aa764 AM |
6980 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
6981 | sec_ptr section, | |
6982 | arelent **relptr, | |
6983 | asymbol **symbols) | |
252b5132 RH |
6984 | { |
6985 | arelent *tblptr; | |
6986 | unsigned int i; | |
9c5bfbb7 | 6987 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6988 | |
b34976b6 | 6989 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
6990 | return -1; |
6991 | ||
6992 | tblptr = section->relocation; | |
6993 | for (i = 0; i < section->reloc_count; i++) | |
6994 | *relptr++ = tblptr++; | |
6995 | ||
6996 | *relptr = NULL; | |
6997 | ||
6998 | return section->reloc_count; | |
6999 | } | |
7000 | ||
7001 | long | |
6cee3f79 | 7002 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 7003 | { |
9c5bfbb7 | 7004 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7005 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
7006 | |
7007 | if (symcount >= 0) | |
7008 | bfd_get_symcount (abfd) = symcount; | |
7009 | return symcount; | |
7010 | } | |
7011 | ||
7012 | long | |
217aa764 AM |
7013 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
7014 | asymbol **allocation) | |
252b5132 | 7015 | { |
9c5bfbb7 | 7016 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7017 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
7018 | |
7019 | if (symcount >= 0) | |
7020 | bfd_get_dynamic_symcount (abfd) = symcount; | |
7021 | return symcount; | |
252b5132 RH |
7022 | } |
7023 | ||
8615f3f2 AM |
7024 | /* Return the size required for the dynamic reloc entries. Any loadable |
7025 | section that was actually installed in the BFD, and has type SHT_REL | |
7026 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
7027 | dynamic reloc section. */ | |
252b5132 RH |
7028 | |
7029 | long | |
217aa764 | 7030 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
7031 | { |
7032 | long ret; | |
7033 | asection *s; | |
7034 | ||
7035 | if (elf_dynsymtab (abfd) == 0) | |
7036 | { | |
7037 | bfd_set_error (bfd_error_invalid_operation); | |
7038 | return -1; | |
7039 | } | |
7040 | ||
7041 | ret = sizeof (arelent *); | |
7042 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 7043 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7044 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7045 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 7046 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
7047 | * sizeof (arelent *)); |
7048 | ||
7049 | return ret; | |
7050 | } | |
7051 | ||
8615f3f2 AM |
7052 | /* Canonicalize the dynamic relocation entries. Note that we return the |
7053 | dynamic relocations as a single block, although they are actually | |
7054 | associated with particular sections; the interface, which was | |
7055 | designed for SunOS style shared libraries, expects that there is only | |
7056 | one set of dynamic relocs. Any loadable section that was actually | |
7057 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
7058 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
7059 | |
7060 | long | |
217aa764 AM |
7061 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
7062 | arelent **storage, | |
7063 | asymbol **syms) | |
252b5132 | 7064 | { |
217aa764 | 7065 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
7066 | asection *s; |
7067 | long ret; | |
7068 | ||
7069 | if (elf_dynsymtab (abfd) == 0) | |
7070 | { | |
7071 | bfd_set_error (bfd_error_invalid_operation); | |
7072 | return -1; | |
7073 | } | |
7074 | ||
7075 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
7076 | ret = 0; | |
7077 | for (s = abfd->sections; s != NULL; s = s->next) | |
7078 | { | |
266b05cf | 7079 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7080 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7081 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
7082 | { | |
7083 | arelent *p; | |
7084 | long count, i; | |
7085 | ||
b34976b6 | 7086 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 7087 | return -1; |
eea6121a | 7088 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
7089 | p = s->relocation; |
7090 | for (i = 0; i < count; i++) | |
7091 | *storage++ = p++; | |
7092 | ret += count; | |
7093 | } | |
7094 | } | |
7095 | ||
7096 | *storage = NULL; | |
7097 | ||
7098 | return ret; | |
7099 | } | |
7100 | \f | |
7101 | /* Read in the version information. */ | |
7102 | ||
b34976b6 | 7103 | bfd_boolean |
fc0e6df6 | 7104 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
7105 | { |
7106 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
7107 | unsigned int freeidx = 0; |
7108 | ||
7109 | if (elf_dynverref (abfd) != 0) | |
7110 | { | |
7111 | Elf_Internal_Shdr *hdr; | |
7112 | Elf_External_Verneed *everneed; | |
7113 | Elf_Internal_Verneed *iverneed; | |
7114 | unsigned int i; | |
d0fb9a8d | 7115 | bfd_byte *contents_end; |
fc0e6df6 PB |
7116 | |
7117 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
7118 | ||
a50b1753 NC |
7119 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
7120 | bfd_zalloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); | |
fc0e6df6 PB |
7121 | if (elf_tdata (abfd)->verref == NULL) |
7122 | goto error_return; | |
7123 | ||
7124 | elf_tdata (abfd)->cverrefs = hdr->sh_info; | |
7125 | ||
a50b1753 | 7126 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
fc0e6df6 | 7127 | if (contents == NULL) |
d0fb9a8d JJ |
7128 | { |
7129 | error_return_verref: | |
7130 | elf_tdata (abfd)->verref = NULL; | |
7131 | elf_tdata (abfd)->cverrefs = 0; | |
7132 | goto error_return; | |
7133 | } | |
fc0e6df6 PB |
7134 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
7135 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 7136 | goto error_return_verref; |
fc0e6df6 | 7137 | |
d0fb9a8d JJ |
7138 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verneed)) |
7139 | goto error_return_verref; | |
7140 | ||
7141 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
7142 | == sizeof (Elf_External_Vernaux)); | |
7143 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
7144 | everneed = (Elf_External_Verneed *) contents; |
7145 | iverneed = elf_tdata (abfd)->verref; | |
7146 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
7147 | { | |
7148 | Elf_External_Vernaux *evernaux; | |
7149 | Elf_Internal_Vernaux *ivernaux; | |
7150 | unsigned int j; | |
7151 | ||
7152 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
7153 | ||
7154 | iverneed->vn_bfd = abfd; | |
7155 | ||
7156 | iverneed->vn_filename = | |
7157 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7158 | iverneed->vn_file); | |
7159 | if (iverneed->vn_filename == NULL) | |
d0fb9a8d | 7160 | goto error_return_verref; |
fc0e6df6 | 7161 | |
d0fb9a8d JJ |
7162 | if (iverneed->vn_cnt == 0) |
7163 | iverneed->vn_auxptr = NULL; | |
7164 | else | |
7165 | { | |
a50b1753 NC |
7166 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
7167 | bfd_alloc2 (abfd, iverneed->vn_cnt, | |
7168 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
7169 | if (iverneed->vn_auxptr == NULL) |
7170 | goto error_return_verref; | |
7171 | } | |
7172 | ||
7173 | if (iverneed->vn_aux | |
7174 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7175 | goto error_return_verref; | |
fc0e6df6 PB |
7176 | |
7177 | evernaux = ((Elf_External_Vernaux *) | |
7178 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
7179 | ivernaux = iverneed->vn_auxptr; | |
7180 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
7181 | { | |
7182 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
7183 | ||
7184 | ivernaux->vna_nodename = | |
7185 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7186 | ivernaux->vna_name); | |
7187 | if (ivernaux->vna_nodename == NULL) | |
d0fb9a8d | 7188 | goto error_return_verref; |
fc0e6df6 PB |
7189 | |
7190 | if (j + 1 < iverneed->vn_cnt) | |
7191 | ivernaux->vna_nextptr = ivernaux + 1; | |
7192 | else | |
7193 | ivernaux->vna_nextptr = NULL; | |
7194 | ||
d0fb9a8d JJ |
7195 | if (ivernaux->vna_next |
7196 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
7197 | goto error_return_verref; | |
7198 | ||
fc0e6df6 PB |
7199 | evernaux = ((Elf_External_Vernaux *) |
7200 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
7201 | ||
7202 | if (ivernaux->vna_other > freeidx) | |
7203 | freeidx = ivernaux->vna_other; | |
7204 | } | |
7205 | ||
7206 | if (i + 1 < hdr->sh_info) | |
7207 | iverneed->vn_nextref = iverneed + 1; | |
7208 | else | |
7209 | iverneed->vn_nextref = NULL; | |
7210 | ||
d0fb9a8d JJ |
7211 | if (iverneed->vn_next |
7212 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7213 | goto error_return_verref; | |
7214 | ||
fc0e6df6 PB |
7215 | everneed = ((Elf_External_Verneed *) |
7216 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
7217 | } | |
7218 | ||
7219 | free (contents); | |
7220 | contents = NULL; | |
7221 | } | |
252b5132 RH |
7222 | |
7223 | if (elf_dynverdef (abfd) != 0) | |
7224 | { | |
7225 | Elf_Internal_Shdr *hdr; | |
7226 | Elf_External_Verdef *everdef; | |
7227 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
7228 | Elf_Internal_Verdef *iverdefarr; |
7229 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 7230 | unsigned int i; |
062e2358 | 7231 | unsigned int maxidx; |
d0fb9a8d | 7232 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
7233 | |
7234 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
7235 | ||
a50b1753 | 7236 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 RH |
7237 | if (contents == NULL) |
7238 | goto error_return; | |
7239 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
217aa764 | 7240 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
7241 | goto error_return; |
7242 | ||
d0fb9a8d JJ |
7243 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verdef)) |
7244 | goto error_return; | |
7245 | ||
7246 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
7247 | >= sizeof (Elf_External_Verdaux)); | |
7248 | contents_end_def = contents + hdr->sh_size | |
7249 | - sizeof (Elf_External_Verdef); | |
7250 | contents_end_aux = contents + hdr->sh_size | |
7251 | - sizeof (Elf_External_Verdaux); | |
7252 | ||
f631889e UD |
7253 | /* We know the number of entries in the section but not the maximum |
7254 | index. Therefore we have to run through all entries and find | |
7255 | the maximum. */ | |
252b5132 | 7256 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
7257 | maxidx = 0; |
7258 | for (i = 0; i < hdr->sh_info; ++i) | |
7259 | { | |
7260 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
7261 | ||
062e2358 AM |
7262 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
7263 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 7264 | |
d0fb9a8d JJ |
7265 | if (iverdefmem.vd_next |
7266 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
7267 | goto error_return; | |
7268 | ||
f631889e UD |
7269 | everdef = ((Elf_External_Verdef *) |
7270 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
7271 | } | |
7272 | ||
fc0e6df6 PB |
7273 | if (default_imported_symver) |
7274 | { | |
7275 | if (freeidx > maxidx) | |
7276 | maxidx = ++freeidx; | |
7277 | else | |
7278 | freeidx = ++maxidx; | |
7279 | } | |
a50b1753 NC |
7280 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7281 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e UD |
7282 | if (elf_tdata (abfd)->verdef == NULL) |
7283 | goto error_return; | |
7284 | ||
7285 | elf_tdata (abfd)->cverdefs = maxidx; | |
7286 | ||
7287 | everdef = (Elf_External_Verdef *) contents; | |
7288 | iverdefarr = elf_tdata (abfd)->verdef; | |
7289 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
7290 | { |
7291 | Elf_External_Verdaux *everdaux; | |
7292 | Elf_Internal_Verdaux *iverdaux; | |
7293 | unsigned int j; | |
7294 | ||
f631889e UD |
7295 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
7296 | ||
d0fb9a8d JJ |
7297 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
7298 | { | |
7299 | error_return_verdef: | |
7300 | elf_tdata (abfd)->verdef = NULL; | |
7301 | elf_tdata (abfd)->cverdefs = 0; | |
7302 | goto error_return; | |
7303 | } | |
7304 | ||
f631889e UD |
7305 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
7306 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
7307 | |
7308 | iverdef->vd_bfd = abfd; | |
7309 | ||
d0fb9a8d JJ |
7310 | if (iverdef->vd_cnt == 0) |
7311 | iverdef->vd_auxptr = NULL; | |
7312 | else | |
7313 | { | |
a50b1753 NC |
7314 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7315 | bfd_alloc2 (abfd, iverdef->vd_cnt, | |
7316 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7317 | if (iverdef->vd_auxptr == NULL) |
7318 | goto error_return_verdef; | |
7319 | } | |
7320 | ||
7321 | if (iverdef->vd_aux | |
7322 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
7323 | goto error_return_verdef; | |
252b5132 RH |
7324 | |
7325 | everdaux = ((Elf_External_Verdaux *) | |
7326 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
7327 | iverdaux = iverdef->vd_auxptr; | |
7328 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
7329 | { | |
7330 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
7331 | ||
7332 | iverdaux->vda_nodename = | |
7333 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7334 | iverdaux->vda_name); | |
7335 | if (iverdaux->vda_nodename == NULL) | |
d0fb9a8d | 7336 | goto error_return_verdef; |
252b5132 RH |
7337 | |
7338 | if (j + 1 < iverdef->vd_cnt) | |
7339 | iverdaux->vda_nextptr = iverdaux + 1; | |
7340 | else | |
7341 | iverdaux->vda_nextptr = NULL; | |
7342 | ||
d0fb9a8d JJ |
7343 | if (iverdaux->vda_next |
7344 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
7345 | goto error_return_verdef; | |
7346 | ||
252b5132 RH |
7347 | everdaux = ((Elf_External_Verdaux *) |
7348 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
7349 | } | |
7350 | ||
d0fb9a8d JJ |
7351 | if (iverdef->vd_cnt) |
7352 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 7353 | |
d0fb9a8d | 7354 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 RH |
7355 | iverdef->vd_nextdef = iverdef + 1; |
7356 | else | |
7357 | iverdef->vd_nextdef = NULL; | |
7358 | ||
7359 | everdef = ((Elf_External_Verdef *) | |
7360 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
7361 | } | |
7362 | ||
7363 | free (contents); | |
7364 | contents = NULL; | |
7365 | } | |
fc0e6df6 | 7366 | else if (default_imported_symver) |
252b5132 | 7367 | { |
fc0e6df6 PB |
7368 | if (freeidx < 3) |
7369 | freeidx = 3; | |
7370 | else | |
7371 | freeidx++; | |
252b5132 | 7372 | |
a50b1753 NC |
7373 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7374 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); | |
fc0e6df6 | 7375 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
7376 | goto error_return; |
7377 | ||
fc0e6df6 PB |
7378 | elf_tdata (abfd)->cverdefs = freeidx; |
7379 | } | |
252b5132 | 7380 | |
fc0e6df6 PB |
7381 | /* Create a default version based on the soname. */ |
7382 | if (default_imported_symver) | |
7383 | { | |
7384 | Elf_Internal_Verdef *iverdef; | |
7385 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 7386 | |
5bb3703f | 7387 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 7388 | |
fc0e6df6 PB |
7389 | iverdef->vd_version = VER_DEF_CURRENT; |
7390 | iverdef->vd_flags = 0; | |
7391 | iverdef->vd_ndx = freeidx; | |
7392 | iverdef->vd_cnt = 1; | |
252b5132 | 7393 | |
fc0e6df6 | 7394 | iverdef->vd_bfd = abfd; |
252b5132 | 7395 | |
fc0e6df6 PB |
7396 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
7397 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 7398 | goto error_return_verdef; |
fc0e6df6 | 7399 | iverdef->vd_nextdef = NULL; |
a50b1753 NC |
7400 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7401 | bfd_alloc (abfd, sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7402 | if (iverdef->vd_auxptr == NULL) |
7403 | goto error_return_verdef; | |
252b5132 | 7404 | |
fc0e6df6 PB |
7405 | iverdaux = iverdef->vd_auxptr; |
7406 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
7407 | iverdaux->vda_nextptr = NULL; | |
252b5132 RH |
7408 | } |
7409 | ||
b34976b6 | 7410 | return TRUE; |
252b5132 RH |
7411 | |
7412 | error_return: | |
5ed6aba4 | 7413 | if (contents != NULL) |
252b5132 | 7414 | free (contents); |
b34976b6 | 7415 | return FALSE; |
252b5132 RH |
7416 | } |
7417 | \f | |
7418 | asymbol * | |
217aa764 | 7419 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
7420 | { |
7421 | elf_symbol_type *newsym; | |
dc810e39 | 7422 | bfd_size_type amt = sizeof (elf_symbol_type); |
252b5132 | 7423 | |
a50b1753 | 7424 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
7425 | if (!newsym) |
7426 | return NULL; | |
7427 | else | |
7428 | { | |
7429 | newsym->symbol.the_bfd = abfd; | |
7430 | return &newsym->symbol; | |
7431 | } | |
7432 | } | |
7433 | ||
7434 | void | |
217aa764 AM |
7435 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
7436 | asymbol *symbol, | |
7437 | symbol_info *ret) | |
252b5132 RH |
7438 | { |
7439 | bfd_symbol_info (symbol, ret); | |
7440 | } | |
7441 | ||
7442 | /* Return whether a symbol name implies a local symbol. Most targets | |
7443 | use this function for the is_local_label_name entry point, but some | |
7444 | override it. */ | |
7445 | ||
b34976b6 | 7446 | bfd_boolean |
217aa764 AM |
7447 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
7448 | const char *name) | |
252b5132 RH |
7449 | { |
7450 | /* Normal local symbols start with ``.L''. */ | |
7451 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 7452 | return TRUE; |
252b5132 RH |
7453 | |
7454 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
7455 | DWARF debugging symbols starting with ``..''. */ | |
7456 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 7457 | return TRUE; |
252b5132 RH |
7458 | |
7459 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
7460 | emitting DWARF debugging output. I suspect this is actually a | |
7461 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
7462 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
7463 | underscore to be emitted on some ELF targets). For ease of use, | |
7464 | we treat such symbols as local. */ | |
7465 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 7466 | return TRUE; |
252b5132 | 7467 | |
b34976b6 | 7468 | return FALSE; |
252b5132 RH |
7469 | } |
7470 | ||
7471 | alent * | |
217aa764 AM |
7472 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
7473 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
7474 | { |
7475 | abort (); | |
7476 | return NULL; | |
7477 | } | |
7478 | ||
b34976b6 | 7479 | bfd_boolean |
217aa764 AM |
7480 | _bfd_elf_set_arch_mach (bfd *abfd, |
7481 | enum bfd_architecture arch, | |
7482 | unsigned long machine) | |
252b5132 RH |
7483 | { |
7484 | /* If this isn't the right architecture for this backend, and this | |
7485 | isn't the generic backend, fail. */ | |
7486 | if (arch != get_elf_backend_data (abfd)->arch | |
7487 | && arch != bfd_arch_unknown | |
7488 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 7489 | return FALSE; |
252b5132 RH |
7490 | |
7491 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
7492 | } | |
7493 | ||
d1fad7c6 NC |
7494 | /* Find the function to a particular section and offset, |
7495 | for error reporting. */ | |
252b5132 | 7496 | |
b34976b6 | 7497 | static bfd_boolean |
b9d678e0 | 7498 | elf_find_function (bfd *abfd, |
217aa764 AM |
7499 | asection *section, |
7500 | asymbol **symbols, | |
7501 | bfd_vma offset, | |
7502 | const char **filename_ptr, | |
7503 | const char **functionname_ptr) | |
252b5132 | 7504 | { |
aef36ac1 AM |
7505 | static asection *last_section; |
7506 | static asymbol *func; | |
7507 | static const char *filename; | |
7508 | static bfd_size_type func_size; | |
252b5132 | 7509 | |
a06c7d5a NC |
7510 | if (symbols == NULL) |
7511 | return FALSE; | |
7512 | ||
aef36ac1 AM |
7513 | if (last_section != section |
7514 | || func == NULL | |
7515 | || offset < func->value | |
7516 | || offset >= func->value + func_size) | |
7517 | { | |
7518 | asymbol *file; | |
7519 | bfd_vma low_func; | |
7520 | asymbol **p; | |
7521 | /* ??? Given multiple file symbols, it is impossible to reliably | |
7522 | choose the right file name for global symbols. File symbols are | |
7523 | local symbols, and thus all file symbols must sort before any | |
7524 | global symbols. The ELF spec may be interpreted to say that a | |
7525 | file symbol must sort before other local symbols, but currently | |
7526 | ld -r doesn't do this. So, for ld -r output, it is possible to | |
7527 | make a better choice of file name for local symbols by ignoring | |
7528 | file symbols appearing after a given local symbol. */ | |
7529 | enum { nothing_seen, symbol_seen, file_after_symbol_seen } state; | |
7530 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7531 | ||
7532 | filename = NULL; | |
7533 | func = NULL; | |
7534 | file = NULL; | |
7535 | low_func = 0; | |
7536 | state = nothing_seen; | |
7537 | func_size = 0; | |
7538 | last_section = section; | |
7539 | ||
7540 | for (p = symbols; *p != NULL; p++) | |
7541 | { | |
7542 | asymbol *sym = *p; | |
7543 | bfd_vma code_off; | |
7544 | bfd_size_type size; | |
7545 | ||
7546 | if ((sym->flags & BSF_FILE) != 0) | |
7547 | { | |
7548 | file = sym; | |
7549 | if (state == symbol_seen) | |
7550 | state = file_after_symbol_seen; | |
7551 | continue; | |
7552 | } | |
ff9e0f5b | 7553 | |
aef36ac1 AM |
7554 | size = bed->maybe_function_sym (sym, section, &code_off); |
7555 | if (size != 0 | |
7556 | && code_off <= offset | |
7557 | && (code_off > low_func | |
7558 | || (code_off == low_func | |
7559 | && size > func_size))) | |
7560 | { | |
7561 | func = sym; | |
7562 | func_size = size; | |
7563 | low_func = code_off; | |
7564 | filename = NULL; | |
7565 | if (file != NULL | |
7566 | && ((sym->flags & BSF_LOCAL) != 0 | |
7567 | || state != file_after_symbol_seen)) | |
7568 | filename = bfd_asymbol_name (file); | |
7569 | } | |
7570 | if (state == nothing_seen) | |
7571 | state = symbol_seen; | |
252b5132 RH |
7572 | } |
7573 | } | |
7574 | ||
7575 | if (func == NULL) | |
b34976b6 | 7576 | return FALSE; |
252b5132 | 7577 | |
d1fad7c6 NC |
7578 | if (filename_ptr) |
7579 | *filename_ptr = filename; | |
7580 | if (functionname_ptr) | |
7581 | *functionname_ptr = bfd_asymbol_name (func); | |
7582 | ||
b34976b6 | 7583 | return TRUE; |
d1fad7c6 NC |
7584 | } |
7585 | ||
7586 | /* Find the nearest line to a particular section and offset, | |
7587 | for error reporting. */ | |
7588 | ||
b34976b6 | 7589 | bfd_boolean |
217aa764 AM |
7590 | _bfd_elf_find_nearest_line (bfd *abfd, |
7591 | asection *section, | |
7592 | asymbol **symbols, | |
7593 | bfd_vma offset, | |
7594 | const char **filename_ptr, | |
7595 | const char **functionname_ptr, | |
7596 | unsigned int *line_ptr) | |
9b8d1a36 CC |
7597 | { |
7598 | return _bfd_elf_find_nearest_line_discriminator (abfd, section, symbols, | |
7599 | offset, filename_ptr, | |
7600 | functionname_ptr, | |
7601 | line_ptr, | |
7602 | NULL); | |
7603 | } | |
7604 | ||
7605 | bfd_boolean | |
7606 | _bfd_elf_find_nearest_line_discriminator (bfd *abfd, | |
7607 | asection *section, | |
7608 | asymbol **symbols, | |
7609 | bfd_vma offset, | |
7610 | const char **filename_ptr, | |
7611 | const char **functionname_ptr, | |
7612 | unsigned int *line_ptr, | |
7613 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 7614 | { |
b34976b6 | 7615 | bfd_boolean found; |
d1fad7c6 NC |
7616 | |
7617 | if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
7618 | filename_ptr, functionname_ptr, |
7619 | line_ptr)) | |
d1fad7c6 NC |
7620 | { |
7621 | if (!*functionname_ptr) | |
4e8a9624 AM |
7622 | elf_find_function (abfd, section, symbols, offset, |
7623 | *filename_ptr ? NULL : filename_ptr, | |
7624 | functionname_ptr); | |
7625 | ||
b34976b6 | 7626 | return TRUE; |
d1fad7c6 NC |
7627 | } |
7628 | ||
fc28f9aa TG |
7629 | if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections, |
7630 | section, symbols, offset, | |
4e8a9624 | 7631 | filename_ptr, functionname_ptr, |
9b8d1a36 | 7632 | line_ptr, discriminator_ptr, 0, |
4e8a9624 | 7633 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
d1fad7c6 NC |
7634 | { |
7635 | if (!*functionname_ptr) | |
4e8a9624 AM |
7636 | elf_find_function (abfd, section, symbols, offset, |
7637 | *filename_ptr ? NULL : filename_ptr, | |
7638 | functionname_ptr); | |
7639 | ||
b34976b6 | 7640 | return TRUE; |
d1fad7c6 NC |
7641 | } |
7642 | ||
7643 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
7644 | &found, filename_ptr, |
7645 | functionname_ptr, line_ptr, | |
7646 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 7647 | return FALSE; |
dc43ada5 | 7648 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 7649 | return TRUE; |
d1fad7c6 NC |
7650 | |
7651 | if (symbols == NULL) | |
b34976b6 | 7652 | return FALSE; |
d1fad7c6 NC |
7653 | |
7654 | if (! elf_find_function (abfd, section, symbols, offset, | |
4e8a9624 | 7655 | filename_ptr, functionname_ptr)) |
b34976b6 | 7656 | return FALSE; |
d1fad7c6 | 7657 | |
252b5132 | 7658 | *line_ptr = 0; |
b34976b6 | 7659 | return TRUE; |
252b5132 RH |
7660 | } |
7661 | ||
5420f73d L |
7662 | /* Find the line for a symbol. */ |
7663 | ||
7664 | bfd_boolean | |
7665 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7666 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 CC |
7667 | { |
7668 | return _bfd_elf_find_line_discriminator (abfd, symbols, symbol, | |
7669 | filename_ptr, line_ptr, | |
7670 | NULL); | |
7671 | } | |
7672 | ||
7673 | bfd_boolean | |
7674 | _bfd_elf_find_line_discriminator (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7675 | const char **filename_ptr, | |
7676 | unsigned int *line_ptr, | |
7677 | unsigned int *discriminator_ptr) | |
5420f73d L |
7678 | { |
7679 | return _bfd_dwarf2_find_line (abfd, symbols, symbol, | |
9b8d1a36 | 7680 | filename_ptr, line_ptr, discriminator_ptr, 0, |
5420f73d L |
7681 | &elf_tdata (abfd)->dwarf2_find_line_info); |
7682 | } | |
7683 | ||
4ab527b0 FF |
7684 | /* After a call to bfd_find_nearest_line, successive calls to |
7685 | bfd_find_inliner_info can be used to get source information about | |
7686 | each level of function inlining that terminated at the address | |
7687 | passed to bfd_find_nearest_line. Currently this is only supported | |
7688 | for DWARF2 with appropriate DWARF3 extensions. */ | |
7689 | ||
7690 | bfd_boolean | |
7691 | _bfd_elf_find_inliner_info (bfd *abfd, | |
7692 | const char **filename_ptr, | |
7693 | const char **functionname_ptr, | |
7694 | unsigned int *line_ptr) | |
7695 | { | |
7696 | bfd_boolean found; | |
7697 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
7698 | functionname_ptr, line_ptr, | |
7699 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
7700 | return found; | |
7701 | } | |
7702 | ||
252b5132 | 7703 | int |
a6b96beb | 7704 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 7705 | { |
8ded5a0f AM |
7706 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7707 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 7708 | |
a6b96beb | 7709 | if (!info->relocatable) |
8ded5a0f | 7710 | { |
62d7a5f6 | 7711 | bfd_size_type phdr_size = elf_tdata (abfd)->program_header_size; |
8ded5a0f | 7712 | |
62d7a5f6 AM |
7713 | if (phdr_size == (bfd_size_type) -1) |
7714 | { | |
7715 | struct elf_segment_map *m; | |
7716 | ||
7717 | phdr_size = 0; | |
7718 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
7719 | phdr_size += bed->s->sizeof_phdr; | |
8ded5a0f | 7720 | |
62d7a5f6 AM |
7721 | if (phdr_size == 0) |
7722 | phdr_size = get_program_header_size (abfd, info); | |
7723 | } | |
8ded5a0f AM |
7724 | |
7725 | elf_tdata (abfd)->program_header_size = phdr_size; | |
7726 | ret += phdr_size; | |
7727 | } | |
7728 | ||
252b5132 RH |
7729 | return ret; |
7730 | } | |
7731 | ||
b34976b6 | 7732 | bfd_boolean |
217aa764 AM |
7733 | _bfd_elf_set_section_contents (bfd *abfd, |
7734 | sec_ptr section, | |
0f867abe | 7735 | const void *location, |
217aa764 AM |
7736 | file_ptr offset, |
7737 | bfd_size_type count) | |
252b5132 RH |
7738 | { |
7739 | Elf_Internal_Shdr *hdr; | |
dc810e39 | 7740 | bfd_signed_vma pos; |
252b5132 RH |
7741 | |
7742 | if (! abfd->output_has_begun | |
217aa764 | 7743 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 7744 | return FALSE; |
252b5132 RH |
7745 | |
7746 | hdr = &elf_section_data (section)->this_hdr; | |
dc810e39 AM |
7747 | pos = hdr->sh_offset + offset; |
7748 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
7749 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 7750 | return FALSE; |
252b5132 | 7751 | |
b34976b6 | 7752 | return TRUE; |
252b5132 RH |
7753 | } |
7754 | ||
7755 | void | |
217aa764 AM |
7756 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
7757 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
7758 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
7759 | { |
7760 | abort (); | |
7761 | } | |
7762 | ||
252b5132 RH |
7763 | /* Try to convert a non-ELF reloc into an ELF one. */ |
7764 | ||
b34976b6 | 7765 | bfd_boolean |
217aa764 | 7766 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 7767 | { |
c044fabd | 7768 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
7769 | |
7770 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
7771 | { | |
7772 | bfd_reloc_code_real_type code; | |
7773 | reloc_howto_type *howto; | |
7774 | ||
7775 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 7776 | equivalent ELF reloc. */ |
252b5132 RH |
7777 | |
7778 | if (areloc->howto->pc_relative) | |
7779 | { | |
7780 | switch (areloc->howto->bitsize) | |
7781 | { | |
7782 | case 8: | |
7783 | code = BFD_RELOC_8_PCREL; | |
7784 | break; | |
7785 | case 12: | |
7786 | code = BFD_RELOC_12_PCREL; | |
7787 | break; | |
7788 | case 16: | |
7789 | code = BFD_RELOC_16_PCREL; | |
7790 | break; | |
7791 | case 24: | |
7792 | code = BFD_RELOC_24_PCREL; | |
7793 | break; | |
7794 | case 32: | |
7795 | code = BFD_RELOC_32_PCREL; | |
7796 | break; | |
7797 | case 64: | |
7798 | code = BFD_RELOC_64_PCREL; | |
7799 | break; | |
7800 | default: | |
7801 | goto fail; | |
7802 | } | |
7803 | ||
7804 | howto = bfd_reloc_type_lookup (abfd, code); | |
7805 | ||
7806 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
7807 | { | |
7808 | if (howto->pcrel_offset) | |
7809 | areloc->addend += areloc->address; | |
7810 | else | |
7811 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
7812 | } | |
7813 | } | |
7814 | else | |
7815 | { | |
7816 | switch (areloc->howto->bitsize) | |
7817 | { | |
7818 | case 8: | |
7819 | code = BFD_RELOC_8; | |
7820 | break; | |
7821 | case 14: | |
7822 | code = BFD_RELOC_14; | |
7823 | break; | |
7824 | case 16: | |
7825 | code = BFD_RELOC_16; | |
7826 | break; | |
7827 | case 26: | |
7828 | code = BFD_RELOC_26; | |
7829 | break; | |
7830 | case 32: | |
7831 | code = BFD_RELOC_32; | |
7832 | break; | |
7833 | case 64: | |
7834 | code = BFD_RELOC_64; | |
7835 | break; | |
7836 | default: | |
7837 | goto fail; | |
7838 | } | |
7839 | ||
7840 | howto = bfd_reloc_type_lookup (abfd, code); | |
7841 | } | |
7842 | ||
7843 | if (howto) | |
7844 | areloc->howto = howto; | |
7845 | else | |
7846 | goto fail; | |
7847 | } | |
7848 | ||
b34976b6 | 7849 | return TRUE; |
252b5132 RH |
7850 | |
7851 | fail: | |
7852 | (*_bfd_error_handler) | |
d003868e AM |
7853 | (_("%B: unsupported relocation type %s"), |
7854 | abfd, areloc->howto->name); | |
252b5132 | 7855 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7856 | return FALSE; |
252b5132 RH |
7857 | } |
7858 | ||
b34976b6 | 7859 | bfd_boolean |
217aa764 | 7860 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 7861 | { |
d9071b0c TG |
7862 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
7863 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 7864 | { |
d9071b0c | 7865 | if (elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 7866 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 7867 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
7868 | } |
7869 | ||
7870 | return _bfd_generic_close_and_cleanup (abfd); | |
7871 | } | |
7872 | ||
7873 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
7874 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
7875 | range-checking to interfere. There is nothing else to do in processing | |
7876 | this reloc. */ | |
7877 | ||
7878 | bfd_reloc_status_type | |
217aa764 AM |
7879 | _bfd_elf_rel_vtable_reloc_fn |
7880 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 7881 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
7882 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
7883 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
7884 | { |
7885 | return bfd_reloc_ok; | |
7886 | } | |
252b5132 RH |
7887 | \f |
7888 | /* Elf core file support. Much of this only works on native | |
7889 | toolchains, since we rely on knowing the | |
7890 | machine-dependent procfs structure in order to pick | |
c044fabd | 7891 | out details about the corefile. */ |
252b5132 RH |
7892 | |
7893 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
7894 | /* Needed for new procfs interface on sparc-solaris. */ |
7895 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
7896 | # include <sys/procfs.h> |
7897 | #endif | |
7898 | ||
261b8d08 PA |
7899 | /* Return a PID that identifies a "thread" for threaded cores, or the |
7900 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
7901 | |
7902 | static int | |
217aa764 | 7903 | elfcore_make_pid (bfd *abfd) |
252b5132 | 7904 | { |
261b8d08 PA |
7905 | int pid; |
7906 | ||
7907 | pid = elf_tdata (abfd)->core_lwpid; | |
7908 | if (pid == 0) | |
7909 | pid = elf_tdata (abfd)->core_pid; | |
7910 | ||
7911 | return pid; | |
252b5132 RH |
7912 | } |
7913 | ||
252b5132 RH |
7914 | /* If there isn't a section called NAME, make one, using |
7915 | data from SECT. Note, this function will generate a | |
7916 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 7917 | overwrite it. */ |
252b5132 | 7918 | |
b34976b6 | 7919 | static bfd_boolean |
217aa764 | 7920 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 7921 | { |
c044fabd | 7922 | asection *sect2; |
252b5132 RH |
7923 | |
7924 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 7925 | return TRUE; |
252b5132 | 7926 | |
117ed4f8 | 7927 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 7928 | if (sect2 == NULL) |
b34976b6 | 7929 | return FALSE; |
252b5132 | 7930 | |
eea6121a | 7931 | sect2->size = sect->size; |
252b5132 | 7932 | sect2->filepos = sect->filepos; |
252b5132 | 7933 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 7934 | return TRUE; |
252b5132 RH |
7935 | } |
7936 | ||
bb0082d6 AM |
7937 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
7938 | actually creates up to two pseudosections: | |
7939 | - For the single-threaded case, a section named NAME, unless | |
7940 | such a section already exists. | |
7941 | - For the multi-threaded case, a section named "NAME/PID", where | |
7942 | PID is elfcore_make_pid (abfd). | |
7943 | Both pseudosections have identical contents. */ | |
b34976b6 | 7944 | bfd_boolean |
217aa764 AM |
7945 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
7946 | char *name, | |
7947 | size_t size, | |
7948 | ufile_ptr filepos) | |
bb0082d6 AM |
7949 | { |
7950 | char buf[100]; | |
7951 | char *threaded_name; | |
d4c88bbb | 7952 | size_t len; |
bb0082d6 AM |
7953 | asection *sect; |
7954 | ||
7955 | /* Build the section name. */ | |
7956 | ||
7957 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 7958 | len = strlen (buf) + 1; |
a50b1753 | 7959 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 7960 | if (threaded_name == NULL) |
b34976b6 | 7961 | return FALSE; |
d4c88bbb | 7962 | memcpy (threaded_name, buf, len); |
bb0082d6 | 7963 | |
117ed4f8 AM |
7964 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
7965 | SEC_HAS_CONTENTS); | |
bb0082d6 | 7966 | if (sect == NULL) |
b34976b6 | 7967 | return FALSE; |
eea6121a | 7968 | sect->size = size; |
bb0082d6 | 7969 | sect->filepos = filepos; |
bb0082d6 AM |
7970 | sect->alignment_power = 2; |
7971 | ||
936e320b | 7972 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
7973 | } |
7974 | ||
252b5132 | 7975 | /* prstatus_t exists on: |
4a938328 | 7976 | solaris 2.5+ |
252b5132 RH |
7977 | linux 2.[01] + glibc |
7978 | unixware 4.2 | |
7979 | */ | |
7980 | ||
7981 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 7982 | |
b34976b6 | 7983 | static bfd_boolean |
217aa764 | 7984 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 7985 | { |
eea6121a | 7986 | size_t size; |
7ee38065 | 7987 | int offset; |
252b5132 | 7988 | |
4a938328 MS |
7989 | if (note->descsz == sizeof (prstatus_t)) |
7990 | { | |
7991 | prstatus_t prstat; | |
252b5132 | 7992 | |
eea6121a | 7993 | size = sizeof (prstat.pr_reg); |
7ee38065 | 7994 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 7995 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 7996 | |
fa49d224 NC |
7997 | /* Do not overwrite the core signal if it |
7998 | has already been set by another thread. */ | |
7999 | if (elf_tdata (abfd)->core_signal == 0) | |
8000 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
261b8d08 PA |
8001 | if (elf_tdata (abfd)->core_pid == 0) |
8002 | elf_tdata (abfd)->core_pid = prstat.pr_pid; | |
252b5132 | 8003 | |
4a938328 MS |
8004 | /* pr_who exists on: |
8005 | solaris 2.5+ | |
8006 | unixware 4.2 | |
8007 | pr_who doesn't exist on: | |
8008 | linux 2.[01] | |
8009 | */ | |
252b5132 | 8010 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
4a938328 | 8011 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
261b8d08 PA |
8012 | #else |
8013 | elf_tdata (abfd)->core_lwpid = prstat.pr_pid; | |
252b5132 | 8014 | #endif |
4a938328 | 8015 | } |
7ee38065 | 8016 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
8017 | else if (note->descsz == sizeof (prstatus32_t)) |
8018 | { | |
8019 | /* 64-bit host, 32-bit corefile */ | |
8020 | prstatus32_t prstat; | |
8021 | ||
eea6121a | 8022 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8023 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
8024 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
8025 | ||
fa49d224 NC |
8026 | /* Do not overwrite the core signal if it |
8027 | has already been set by another thread. */ | |
8028 | if (elf_tdata (abfd)->core_signal == 0) | |
8029 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
261b8d08 PA |
8030 | if (elf_tdata (abfd)->core_pid == 0) |
8031 | elf_tdata (abfd)->core_pid = prstat.pr_pid; | |
4a938328 MS |
8032 | |
8033 | /* pr_who exists on: | |
8034 | solaris 2.5+ | |
8035 | unixware 4.2 | |
8036 | pr_who doesn't exist on: | |
8037 | linux 2.[01] | |
8038 | */ | |
7ee38065 | 8039 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
4a938328 | 8040 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
261b8d08 PA |
8041 | #else |
8042 | elf_tdata (abfd)->core_lwpid = prstat.pr_pid; | |
4a938328 MS |
8043 | #endif |
8044 | } | |
7ee38065 | 8045 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
8046 | else |
8047 | { | |
8048 | /* Fail - we don't know how to handle any other | |
8049 | note size (ie. data object type). */ | |
b34976b6 | 8050 | return TRUE; |
4a938328 | 8051 | } |
252b5132 | 8052 | |
bb0082d6 | 8053 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 8054 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 8055 | size, note->descpos + offset); |
252b5132 RH |
8056 | } |
8057 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
8058 | ||
bb0082d6 | 8059 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 8060 | static bfd_boolean |
217aa764 AM |
8061 | elfcore_make_note_pseudosection (bfd *abfd, |
8062 | char *name, | |
8063 | Elf_Internal_Note *note) | |
252b5132 | 8064 | { |
936e320b AM |
8065 | return _bfd_elfcore_make_pseudosection (abfd, name, |
8066 | note->descsz, note->descpos); | |
252b5132 RH |
8067 | } |
8068 | ||
ff08c6bb JB |
8069 | /* There isn't a consistent prfpregset_t across platforms, |
8070 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
8071 | data structure apart. */ |
8072 | ||
b34976b6 | 8073 | static bfd_boolean |
217aa764 | 8074 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8075 | { |
8076 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8077 | } | |
8078 | ||
ff08c6bb | 8079 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 8080 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 8081 | literally. */ |
c044fabd | 8082 | |
b34976b6 | 8083 | static bfd_boolean |
217aa764 | 8084 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8085 | { |
8086 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8087 | } | |
8088 | ||
4339cae0 L |
8089 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
8090 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
8091 | contents literally. */ | |
8092 | ||
8093 | static bfd_boolean | |
8094 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
8095 | { | |
8096 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
8097 | } | |
8098 | ||
97753bd5 AM |
8099 | static bfd_boolean |
8100 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
8101 | { | |
8102 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
8103 | } | |
8104 | ||
89eeb0bc LM |
8105 | static bfd_boolean |
8106 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
8107 | { | |
8108 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
8109 | } | |
97753bd5 | 8110 | |
0675e188 UW |
8111 | static bfd_boolean |
8112 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
8113 | { | |
8114 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
8115 | } | |
8116 | ||
d7eeb400 MS |
8117 | static bfd_boolean |
8118 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
8119 | { | |
8120 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
8121 | } | |
8122 | ||
8123 | static bfd_boolean | |
8124 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
8125 | { | |
8126 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
8127 | } | |
8128 | ||
8129 | static bfd_boolean | |
8130 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
8131 | { | |
8132 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
8133 | } | |
8134 | ||
8135 | static bfd_boolean | |
8136 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
8137 | { | |
8138 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
8139 | } | |
8140 | ||
8141 | static bfd_boolean | |
8142 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
8143 | { | |
8144 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
8145 | } | |
8146 | ||
355b81d9 UW |
8147 | static bfd_boolean |
8148 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
8149 | { | |
8150 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
8151 | } | |
8152 | ||
8153 | static bfd_boolean | |
8154 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
8155 | { | |
8156 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
8157 | } | |
8158 | ||
faa9a424 UW |
8159 | static bfd_boolean |
8160 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
8161 | { | |
8162 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
8163 | } | |
8164 | ||
252b5132 | 8165 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 8166 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 8167 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8168 | typedef prpsinfo32_t elfcore_psinfo32_t; |
8169 | #endif | |
252b5132 RH |
8170 | #endif |
8171 | ||
8172 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 8173 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 8174 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8175 | typedef psinfo32_t elfcore_psinfo32_t; |
8176 | #endif | |
252b5132 RH |
8177 | #endif |
8178 | ||
252b5132 RH |
8179 | /* return a malloc'ed copy of a string at START which is at |
8180 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 8181 | the copy will always have a terminating '\0'. */ |
252b5132 | 8182 | |
936e320b | 8183 | char * |
217aa764 | 8184 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 8185 | { |
dc810e39 | 8186 | char *dups; |
a50b1753 | 8187 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 8188 | size_t len; |
252b5132 RH |
8189 | |
8190 | if (end == NULL) | |
8191 | len = max; | |
8192 | else | |
8193 | len = end - start; | |
8194 | ||
a50b1753 | 8195 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 8196 | if (dups == NULL) |
252b5132 RH |
8197 | return NULL; |
8198 | ||
dc810e39 AM |
8199 | memcpy (dups, start, len); |
8200 | dups[len] = '\0'; | |
252b5132 | 8201 | |
dc810e39 | 8202 | return dups; |
252b5132 RH |
8203 | } |
8204 | ||
bb0082d6 | 8205 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 8206 | static bfd_boolean |
217aa764 | 8207 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8208 | { |
4a938328 MS |
8209 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
8210 | { | |
8211 | elfcore_psinfo_t psinfo; | |
252b5132 | 8212 | |
7ee38065 | 8213 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8214 | |
335e41d4 | 8215 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
bc989cdc | 8216 | elf_tdata (abfd)->core_pid = psinfo.pr_pid; |
335e41d4 | 8217 | #endif |
4a938328 | 8218 | elf_tdata (abfd)->core_program |
936e320b AM |
8219 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8220 | sizeof (psinfo.pr_fname)); | |
252b5132 | 8221 | |
4a938328 | 8222 | elf_tdata (abfd)->core_command |
936e320b AM |
8223 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8224 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 8225 | } |
7ee38065 | 8226 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
8227 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
8228 | { | |
8229 | /* 64-bit host, 32-bit corefile */ | |
8230 | elfcore_psinfo32_t psinfo; | |
8231 | ||
7ee38065 | 8232 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8233 | |
335e41d4 | 8234 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
bc989cdc | 8235 | elf_tdata (abfd)->core_pid = psinfo.pr_pid; |
335e41d4 | 8236 | #endif |
4a938328 | 8237 | elf_tdata (abfd)->core_program |
936e320b AM |
8238 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8239 | sizeof (psinfo.pr_fname)); | |
4a938328 MS |
8240 | |
8241 | elf_tdata (abfd)->core_command | |
936e320b AM |
8242 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8243 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
8244 | } |
8245 | #endif | |
8246 | ||
8247 | else | |
8248 | { | |
8249 | /* Fail - we don't know how to handle any other | |
8250 | note size (ie. data object type). */ | |
b34976b6 | 8251 | return TRUE; |
4a938328 | 8252 | } |
252b5132 RH |
8253 | |
8254 | /* Note that for some reason, a spurious space is tacked | |
8255 | onto the end of the args in some (at least one anyway) | |
c044fabd | 8256 | implementations, so strip it off if it exists. */ |
252b5132 RH |
8257 | |
8258 | { | |
c044fabd | 8259 | char *command = elf_tdata (abfd)->core_command; |
252b5132 RH |
8260 | int n = strlen (command); |
8261 | ||
8262 | if (0 < n && command[n - 1] == ' ') | |
8263 | command[n - 1] = '\0'; | |
8264 | } | |
8265 | ||
b34976b6 | 8266 | return TRUE; |
252b5132 RH |
8267 | } |
8268 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
8269 | ||
252b5132 | 8270 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 8271 | static bfd_boolean |
217aa764 | 8272 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8273 | { |
f572a39d AM |
8274 | if (note->descsz == sizeof (pstatus_t) |
8275 | #if defined (HAVE_PXSTATUS_T) | |
8276 | || note->descsz == sizeof (pxstatus_t) | |
8277 | #endif | |
8278 | ) | |
4a938328 MS |
8279 | { |
8280 | pstatus_t pstat; | |
252b5132 | 8281 | |
4a938328 | 8282 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8283 | |
4a938328 MS |
8284 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
8285 | } | |
7ee38065 | 8286 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
8287 | else if (note->descsz == sizeof (pstatus32_t)) |
8288 | { | |
8289 | /* 64-bit host, 32-bit corefile */ | |
8290 | pstatus32_t pstat; | |
252b5132 | 8291 | |
4a938328 | 8292 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8293 | |
4a938328 MS |
8294 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
8295 | } | |
8296 | #endif | |
252b5132 RH |
8297 | /* Could grab some more details from the "representative" |
8298 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 8299 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 8300 | |
b34976b6 | 8301 | return TRUE; |
252b5132 RH |
8302 | } |
8303 | #endif /* defined (HAVE_PSTATUS_T) */ | |
8304 | ||
252b5132 | 8305 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 8306 | static bfd_boolean |
217aa764 | 8307 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
8308 | { |
8309 | lwpstatus_t lwpstat; | |
8310 | char buf[100]; | |
c044fabd | 8311 | char *name; |
d4c88bbb | 8312 | size_t len; |
c044fabd | 8313 | asection *sect; |
252b5132 | 8314 | |
f572a39d AM |
8315 | if (note->descsz != sizeof (lwpstat) |
8316 | #if defined (HAVE_LWPXSTATUS_T) | |
8317 | && note->descsz != sizeof (lwpxstatus_t) | |
8318 | #endif | |
8319 | ) | |
b34976b6 | 8320 | return TRUE; |
252b5132 RH |
8321 | |
8322 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
8323 | ||
8324 | elf_tdata (abfd)->core_lwpid = lwpstat.pr_lwpid; | |
a1504221 JB |
8325 | /* Do not overwrite the core signal if it has already been set by |
8326 | another thread. */ | |
8327 | if (elf_tdata (abfd)->core_signal == 0) | |
8328 | elf_tdata (abfd)->core_signal = lwpstat.pr_cursig; | |
252b5132 | 8329 | |
c044fabd | 8330 | /* Make a ".reg/999" section. */ |
252b5132 RH |
8331 | |
8332 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8333 | len = strlen (buf) + 1; |
217aa764 | 8334 | name = bfd_alloc (abfd, len); |
252b5132 | 8335 | if (name == NULL) |
b34976b6 | 8336 | return FALSE; |
d4c88bbb | 8337 | memcpy (name, buf, len); |
252b5132 | 8338 | |
117ed4f8 | 8339 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8340 | if (sect == NULL) |
b34976b6 | 8341 | return FALSE; |
252b5132 RH |
8342 | |
8343 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8344 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
8345 | sect->filepos = note->descpos |
8346 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
8347 | #endif | |
8348 | ||
8349 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 8350 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
8351 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
8352 | #endif | |
8353 | ||
252b5132 RH |
8354 | sect->alignment_power = 2; |
8355 | ||
8356 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 8357 | return FALSE; |
252b5132 RH |
8358 | |
8359 | /* Make a ".reg2/999" section */ | |
8360 | ||
8361 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8362 | len = strlen (buf) + 1; |
217aa764 | 8363 | name = bfd_alloc (abfd, len); |
252b5132 | 8364 | if (name == NULL) |
b34976b6 | 8365 | return FALSE; |
d4c88bbb | 8366 | memcpy (name, buf, len); |
252b5132 | 8367 | |
117ed4f8 | 8368 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8369 | if (sect == NULL) |
b34976b6 | 8370 | return FALSE; |
252b5132 RH |
8371 | |
8372 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8373 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
8374 | sect->filepos = note->descpos |
8375 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
8376 | #endif | |
8377 | ||
8378 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 8379 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
8380 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
8381 | #endif | |
8382 | ||
252b5132 RH |
8383 | sect->alignment_power = 2; |
8384 | ||
936e320b | 8385 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
8386 | } |
8387 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
8388 | ||
b34976b6 | 8389 | static bfd_boolean |
217aa764 | 8390 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
8391 | { |
8392 | char buf[30]; | |
c044fabd | 8393 | char *name; |
d4c88bbb | 8394 | size_t len; |
c044fabd | 8395 | asection *sect; |
4a6636fb PA |
8396 | int type; |
8397 | int is_active_thread; | |
8398 | bfd_vma base_addr; | |
16e9c715 | 8399 | |
4a6636fb | 8400 | if (note->descsz < 728) |
b34976b6 | 8401 | return TRUE; |
16e9c715 | 8402 | |
4a6636fb PA |
8403 | if (! CONST_STRNEQ (note->namedata, "win32")) |
8404 | return TRUE; | |
8405 | ||
8406 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 8407 | |
4a6636fb | 8408 | switch (type) |
16e9c715 | 8409 | { |
4a6636fb | 8410 | case 1 /* NOTE_INFO_PROCESS */: |
16e9c715 | 8411 | /* FIXME: need to add ->core_command. */ |
4a6636fb PA |
8412 | /* process_info.pid */ |
8413 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 8); | |
8414 | /* process_info.signal */ | |
8415 | elf_tdata (abfd)->core_signal = bfd_get_32 (abfd, note->descdata + 12); | |
c044fabd | 8416 | break; |
16e9c715 | 8417 | |
4a6636fb | 8418 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 8419 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
8420 | /* thread_info.tid */ |
8421 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 8422 | |
d4c88bbb | 8423 | len = strlen (buf) + 1; |
a50b1753 | 8424 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8425 | if (name == NULL) |
b34976b6 | 8426 | return FALSE; |
c044fabd | 8427 | |
d4c88bbb | 8428 | memcpy (name, buf, len); |
16e9c715 | 8429 | |
117ed4f8 | 8430 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 8431 | if (sect == NULL) |
b34976b6 | 8432 | return FALSE; |
c044fabd | 8433 | |
4a6636fb PA |
8434 | /* sizeof (thread_info.thread_context) */ |
8435 | sect->size = 716; | |
8436 | /* offsetof (thread_info.thread_context) */ | |
8437 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
8438 | sect->alignment_power = 2; |
8439 | ||
4a6636fb PA |
8440 | /* thread_info.is_active_thread */ |
8441 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
8442 | ||
8443 | if (is_active_thread) | |
16e9c715 | 8444 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 8445 | return FALSE; |
16e9c715 NC |
8446 | break; |
8447 | ||
4a6636fb | 8448 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 8449 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
8450 | /* module_info.base_address */ |
8451 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 8452 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 8453 | |
d4c88bbb | 8454 | len = strlen (buf) + 1; |
a50b1753 | 8455 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8456 | if (name == NULL) |
b34976b6 | 8457 | return FALSE; |
c044fabd | 8458 | |
d4c88bbb | 8459 | memcpy (name, buf, len); |
252b5132 | 8460 | |
117ed4f8 | 8461 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 8462 | |
16e9c715 | 8463 | if (sect == NULL) |
b34976b6 | 8464 | return FALSE; |
c044fabd | 8465 | |
eea6121a | 8466 | sect->size = note->descsz; |
16e9c715 | 8467 | sect->filepos = note->descpos; |
16e9c715 NC |
8468 | sect->alignment_power = 2; |
8469 | break; | |
8470 | ||
8471 | default: | |
b34976b6 | 8472 | return TRUE; |
16e9c715 NC |
8473 | } |
8474 | ||
b34976b6 | 8475 | return TRUE; |
16e9c715 | 8476 | } |
252b5132 | 8477 | |
b34976b6 | 8478 | static bfd_boolean |
217aa764 | 8479 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8480 | { |
9c5bfbb7 | 8481 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 8482 | |
252b5132 RH |
8483 | switch (note->type) |
8484 | { | |
8485 | default: | |
b34976b6 | 8486 | return TRUE; |
252b5132 | 8487 | |
252b5132 | 8488 | case NT_PRSTATUS: |
bb0082d6 AM |
8489 | if (bed->elf_backend_grok_prstatus) |
8490 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 8491 | return TRUE; |
bb0082d6 | 8492 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 8493 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 8494 | #else |
b34976b6 | 8495 | return TRUE; |
252b5132 RH |
8496 | #endif |
8497 | ||
8498 | #if defined (HAVE_PSTATUS_T) | |
8499 | case NT_PSTATUS: | |
8500 | return elfcore_grok_pstatus (abfd, note); | |
8501 | #endif | |
8502 | ||
8503 | #if defined (HAVE_LWPSTATUS_T) | |
8504 | case NT_LWPSTATUS: | |
8505 | return elfcore_grok_lwpstatus (abfd, note); | |
8506 | #endif | |
8507 | ||
8508 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
8509 | return elfcore_grok_prfpreg (abfd, note); | |
8510 | ||
c044fabd | 8511 | case NT_WIN32PSTATUS: |
16e9c715 | 8512 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 8513 | |
c044fabd | 8514 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
8515 | if (note->namesz == 6 |
8516 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
8517 | return elfcore_grok_prxfpreg (abfd, note); |
8518 | else | |
b34976b6 | 8519 | return TRUE; |
ff08c6bb | 8520 | |
4339cae0 L |
8521 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
8522 | if (note->namesz == 6 | |
8523 | && strcmp (note->namedata, "LINUX") == 0) | |
8524 | return elfcore_grok_xstatereg (abfd, note); | |
8525 | else | |
8526 | return TRUE; | |
8527 | ||
97753bd5 AM |
8528 | case NT_PPC_VMX: |
8529 | if (note->namesz == 6 | |
8530 | && strcmp (note->namedata, "LINUX") == 0) | |
8531 | return elfcore_grok_ppc_vmx (abfd, note); | |
8532 | else | |
8533 | return TRUE; | |
8534 | ||
89eeb0bc LM |
8535 | case NT_PPC_VSX: |
8536 | if (note->namesz == 6 | |
8537 | && strcmp (note->namedata, "LINUX") == 0) | |
8538 | return elfcore_grok_ppc_vsx (abfd, note); | |
8539 | else | |
8540 | return TRUE; | |
8541 | ||
0675e188 UW |
8542 | case NT_S390_HIGH_GPRS: |
8543 | if (note->namesz == 6 | |
8544 | && strcmp (note->namedata, "LINUX") == 0) | |
8545 | return elfcore_grok_s390_high_gprs (abfd, note); | |
8546 | else | |
8547 | return TRUE; | |
8548 | ||
d7eeb400 MS |
8549 | case NT_S390_TIMER: |
8550 | if (note->namesz == 6 | |
8551 | && strcmp (note->namedata, "LINUX") == 0) | |
8552 | return elfcore_grok_s390_timer (abfd, note); | |
8553 | else | |
8554 | return TRUE; | |
8555 | ||
8556 | case NT_S390_TODCMP: | |
8557 | if (note->namesz == 6 | |
8558 | && strcmp (note->namedata, "LINUX") == 0) | |
8559 | return elfcore_grok_s390_todcmp (abfd, note); | |
8560 | else | |
8561 | return TRUE; | |
8562 | ||
8563 | case NT_S390_TODPREG: | |
8564 | if (note->namesz == 6 | |
8565 | && strcmp (note->namedata, "LINUX") == 0) | |
8566 | return elfcore_grok_s390_todpreg (abfd, note); | |
8567 | else | |
8568 | return TRUE; | |
8569 | ||
8570 | case NT_S390_CTRS: | |
8571 | if (note->namesz == 6 | |
8572 | && strcmp (note->namedata, "LINUX") == 0) | |
8573 | return elfcore_grok_s390_ctrs (abfd, note); | |
8574 | else | |
8575 | return TRUE; | |
8576 | ||
8577 | case NT_S390_PREFIX: | |
8578 | if (note->namesz == 6 | |
8579 | && strcmp (note->namedata, "LINUX") == 0) | |
8580 | return elfcore_grok_s390_prefix (abfd, note); | |
8581 | else | |
8582 | return TRUE; | |
8583 | ||
355b81d9 UW |
8584 | case NT_S390_LAST_BREAK: |
8585 | if (note->namesz == 6 | |
8586 | && strcmp (note->namedata, "LINUX") == 0) | |
8587 | return elfcore_grok_s390_last_break (abfd, note); | |
8588 | else | |
8589 | return TRUE; | |
8590 | ||
8591 | case NT_S390_SYSTEM_CALL: | |
8592 | if (note->namesz == 6 | |
8593 | && strcmp (note->namedata, "LINUX") == 0) | |
8594 | return elfcore_grok_s390_system_call (abfd, note); | |
8595 | else | |
8596 | return TRUE; | |
8597 | ||
faa9a424 UW |
8598 | case NT_ARM_VFP: |
8599 | if (note->namesz == 6 | |
8600 | && strcmp (note->namedata, "LINUX") == 0) | |
8601 | return elfcore_grok_arm_vfp (abfd, note); | |
8602 | else | |
8603 | return TRUE; | |
8604 | ||
252b5132 RH |
8605 | case NT_PRPSINFO: |
8606 | case NT_PSINFO: | |
bb0082d6 AM |
8607 | if (bed->elf_backend_grok_psinfo) |
8608 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 8609 | return TRUE; |
bb0082d6 | 8610 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 8611 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 8612 | #else |
b34976b6 | 8613 | return TRUE; |
252b5132 | 8614 | #endif |
3333a7c3 RM |
8615 | |
8616 | case NT_AUXV: | |
8617 | { | |
117ed4f8 AM |
8618 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
8619 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
8620 | |
8621 | if (sect == NULL) | |
8622 | return FALSE; | |
eea6121a | 8623 | sect->size = note->descsz; |
3333a7c3 | 8624 | sect->filepos = note->descpos; |
3333a7c3 RM |
8625 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
8626 | ||
8627 | return TRUE; | |
8628 | } | |
9015683b | 8629 | |
451b7c33 TT |
8630 | case NT_FILE: |
8631 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
8632 | note); | |
8633 | ||
9015683b TT |
8634 | case NT_SIGINFO: |
8635 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
8636 | note); | |
252b5132 RH |
8637 | } |
8638 | } | |
8639 | ||
718175fa JK |
8640 | static bfd_boolean |
8641 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
8642 | { | |
8643 | elf_tdata (abfd)->build_id_size = note->descsz; | |
a50b1753 | 8644 | elf_tdata (abfd)->build_id = (bfd_byte *) bfd_alloc (abfd, note->descsz); |
718175fa JK |
8645 | if (elf_tdata (abfd)->build_id == NULL) |
8646 | return FALSE; | |
8647 | ||
8648 | memcpy (elf_tdata (abfd)->build_id, note->descdata, note->descsz); | |
8649 | ||
8650 | return TRUE; | |
8651 | } | |
8652 | ||
8653 | static bfd_boolean | |
8654 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
8655 | { | |
8656 | switch (note->type) | |
8657 | { | |
8658 | default: | |
8659 | return TRUE; | |
8660 | ||
8661 | case NT_GNU_BUILD_ID: | |
8662 | return elfobj_grok_gnu_build_id (abfd, note); | |
8663 | } | |
8664 | } | |
8665 | ||
e21e5835 NC |
8666 | static bfd_boolean |
8667 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
8668 | { | |
8669 | struct sdt_note *cur = | |
8670 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
8671 | + note->descsz); | |
8672 | ||
8673 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
8674 | cur->size = (bfd_size_type) note->descsz; | |
8675 | memcpy (cur->data, note->descdata, note->descsz); | |
8676 | ||
8677 | elf_tdata (abfd)->sdt_note_head = cur; | |
8678 | ||
8679 | return TRUE; | |
8680 | } | |
8681 | ||
8682 | static bfd_boolean | |
8683 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
8684 | { | |
8685 | switch (note->type) | |
8686 | { | |
8687 | case NT_STAPSDT: | |
8688 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
8689 | ||
8690 | default: | |
8691 | return TRUE; | |
8692 | } | |
8693 | } | |
8694 | ||
b34976b6 | 8695 | static bfd_boolean |
217aa764 | 8696 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
8697 | { |
8698 | char *cp; | |
8699 | ||
8700 | cp = strchr (note->namedata, '@'); | |
8701 | if (cp != NULL) | |
8702 | { | |
d2b64500 | 8703 | *lwpidp = atoi(cp + 1); |
b34976b6 | 8704 | return TRUE; |
50b2bdb7 | 8705 | } |
b34976b6 | 8706 | return FALSE; |
50b2bdb7 AM |
8707 | } |
8708 | ||
b34976b6 | 8709 | static bfd_boolean |
217aa764 | 8710 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 8711 | { |
50b2bdb7 AM |
8712 | /* Signal number at offset 0x08. */ |
8713 | elf_tdata (abfd)->core_signal | |
8714 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); | |
8715 | ||
8716 | /* Process ID at offset 0x50. */ | |
8717 | elf_tdata (abfd)->core_pid | |
8718 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); | |
8719 | ||
8720 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
8721 | elf_tdata (abfd)->core_command | |
8722 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); | |
8723 | ||
7720ba9f MK |
8724 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
8725 | note); | |
50b2bdb7 AM |
8726 | } |
8727 | ||
b34976b6 | 8728 | static bfd_boolean |
217aa764 | 8729 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
8730 | { |
8731 | int lwp; | |
8732 | ||
8733 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
8734 | elf_tdata (abfd)->core_lwpid = lwp; | |
8735 | ||
b4db1224 | 8736 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
8737 | { |
8738 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
8739 | find this note before any of the others, which is fine, |
8740 | since the kernel writes this note out first when it | |
8741 | creates a core file. */ | |
47d9a591 | 8742 | |
50b2bdb7 AM |
8743 | return elfcore_grok_netbsd_procinfo (abfd, note); |
8744 | } | |
8745 | ||
b4db1224 JT |
8746 | /* As of Jan 2002 there are no other machine-independent notes |
8747 | defined for NetBSD core files. If the note type is less | |
8748 | than the start of the machine-dependent note types, we don't | |
8749 | understand it. */ | |
47d9a591 | 8750 | |
b4db1224 | 8751 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 8752 | return TRUE; |
50b2bdb7 AM |
8753 | |
8754 | ||
8755 | switch (bfd_get_arch (abfd)) | |
8756 | { | |
08a40648 AM |
8757 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
8758 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
8759 | |
8760 | case bfd_arch_alpha: | |
8761 | case bfd_arch_sparc: | |
8762 | switch (note->type) | |
08a40648 AM |
8763 | { |
8764 | case NT_NETBSDCORE_FIRSTMACH+0: | |
8765 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8766 | |
08a40648 AM |
8767 | case NT_NETBSDCORE_FIRSTMACH+2: |
8768 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8769 | |
08a40648 AM |
8770 | default: |
8771 | return TRUE; | |
8772 | } | |
50b2bdb7 | 8773 | |
08a40648 AM |
8774 | /* On all other arch's, PT_GETREGS == mach+1 and |
8775 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
8776 | |
8777 | default: | |
8778 | switch (note->type) | |
08a40648 AM |
8779 | { |
8780 | case NT_NETBSDCORE_FIRSTMACH+1: | |
8781 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8782 | |
08a40648 AM |
8783 | case NT_NETBSDCORE_FIRSTMACH+3: |
8784 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8785 | |
08a40648 AM |
8786 | default: |
8787 | return TRUE; | |
8788 | } | |
50b2bdb7 AM |
8789 | } |
8790 | /* NOTREACHED */ | |
8791 | } | |
8792 | ||
67cc5033 MK |
8793 | static bfd_boolean |
8794 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
8795 | { | |
8796 | /* Signal number at offset 0x08. */ | |
8797 | elf_tdata (abfd)->core_signal | |
8798 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); | |
8799 | ||
8800 | /* Process ID at offset 0x20. */ | |
8801 | elf_tdata (abfd)->core_pid | |
8802 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); | |
8803 | ||
8804 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
8805 | elf_tdata (abfd)->core_command | |
8806 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); | |
8807 | ||
8808 | return TRUE; | |
8809 | } | |
8810 | ||
8811 | static bfd_boolean | |
8812 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
8813 | { | |
8814 | if (note->type == NT_OPENBSD_PROCINFO) | |
8815 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
8816 | ||
8817 | if (note->type == NT_OPENBSD_REGS) | |
8818 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
8819 | ||
8820 | if (note->type == NT_OPENBSD_FPREGS) | |
8821 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8822 | ||
8823 | if (note->type == NT_OPENBSD_XFPREGS) | |
8824 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8825 | ||
8826 | if (note->type == NT_OPENBSD_AUXV) | |
8827 | { | |
8828 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
8829 | SEC_HAS_CONTENTS); | |
8830 | ||
8831 | if (sect == NULL) | |
8832 | return FALSE; | |
8833 | sect->size = note->descsz; | |
8834 | sect->filepos = note->descpos; | |
8835 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
8836 | ||
8837 | return TRUE; | |
8838 | } | |
8839 | ||
8840 | if (note->type == NT_OPENBSD_WCOOKIE) | |
8841 | { | |
8842 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
8843 | SEC_HAS_CONTENTS); | |
8844 | ||
8845 | if (sect == NULL) | |
8846 | return FALSE; | |
8847 | sect->size = note->descsz; | |
8848 | sect->filepos = note->descpos; | |
8849 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
8850 | ||
8851 | return TRUE; | |
8852 | } | |
8853 | ||
8854 | return TRUE; | |
8855 | } | |
8856 | ||
07c6e936 | 8857 | static bfd_boolean |
d3fd4074 | 8858 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
8859 | { |
8860 | void *ddata = note->descdata; | |
8861 | char buf[100]; | |
8862 | char *name; | |
8863 | asection *sect; | |
f8843e87 AM |
8864 | short sig; |
8865 | unsigned flags; | |
07c6e936 NC |
8866 | |
8867 | /* nto_procfs_status 'pid' field is at offset 0. */ | |
8868 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, (bfd_byte *) ddata); | |
8869 | ||
f8843e87 AM |
8870 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
8871 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
8872 | ||
8873 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
8874 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
8875 | |
8876 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
8877 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
8878 | { | |
8879 | elf_tdata (abfd)->core_signal = sig; | |
8880 | elf_tdata (abfd)->core_lwpid = *tid; | |
8881 | } | |
07c6e936 | 8882 | |
f8843e87 AM |
8883 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
8884 | do not come from signals so we make sure we set the current | |
8885 | thread just in case. */ | |
8886 | if (flags & 0x00000080) | |
8887 | elf_tdata (abfd)->core_lwpid = *tid; | |
07c6e936 NC |
8888 | |
8889 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 8890 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 8891 | |
a50b1753 | 8892 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
8893 | if (name == NULL) |
8894 | return FALSE; | |
8895 | strcpy (name, buf); | |
8896 | ||
117ed4f8 | 8897 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
8898 | if (sect == NULL) |
8899 | return FALSE; | |
8900 | ||
eea6121a | 8901 | sect->size = note->descsz; |
07c6e936 | 8902 | sect->filepos = note->descpos; |
07c6e936 NC |
8903 | sect->alignment_power = 2; |
8904 | ||
8905 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
8906 | } | |
8907 | ||
8908 | static bfd_boolean | |
d69f560c KW |
8909 | elfcore_grok_nto_regs (bfd *abfd, |
8910 | Elf_Internal_Note *note, | |
d3fd4074 | 8911 | long tid, |
d69f560c | 8912 | char *base) |
07c6e936 NC |
8913 | { |
8914 | char buf[100]; | |
8915 | char *name; | |
8916 | asection *sect; | |
8917 | ||
d69f560c | 8918 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 8919 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 8920 | |
a50b1753 | 8921 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
8922 | if (name == NULL) |
8923 | return FALSE; | |
8924 | strcpy (name, buf); | |
8925 | ||
117ed4f8 | 8926 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
8927 | if (sect == NULL) |
8928 | return FALSE; | |
8929 | ||
eea6121a | 8930 | sect->size = note->descsz; |
07c6e936 | 8931 | sect->filepos = note->descpos; |
07c6e936 NC |
8932 | sect->alignment_power = 2; |
8933 | ||
f8843e87 AM |
8934 | /* This is the current thread. */ |
8935 | if (elf_tdata (abfd)->core_lwpid == tid) | |
d69f560c | 8936 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
8937 | |
8938 | return TRUE; | |
07c6e936 NC |
8939 | } |
8940 | ||
8941 | #define BFD_QNT_CORE_INFO 7 | |
8942 | #define BFD_QNT_CORE_STATUS 8 | |
8943 | #define BFD_QNT_CORE_GREG 9 | |
8944 | #define BFD_QNT_CORE_FPREG 10 | |
8945 | ||
8946 | static bfd_boolean | |
217aa764 | 8947 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
8948 | { |
8949 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 8950 | tid from the previous call to pass down to the next gregs |
07c6e936 | 8951 | function. */ |
d3fd4074 | 8952 | static long tid = 1; |
07c6e936 NC |
8953 | |
8954 | switch (note->type) | |
8955 | { | |
d69f560c KW |
8956 | case BFD_QNT_CORE_INFO: |
8957 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
8958 | case BFD_QNT_CORE_STATUS: | |
8959 | return elfcore_grok_nto_status (abfd, note, &tid); | |
8960 | case BFD_QNT_CORE_GREG: | |
8961 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
8962 | case BFD_QNT_CORE_FPREG: | |
8963 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
8964 | default: | |
8965 | return TRUE; | |
07c6e936 NC |
8966 | } |
8967 | } | |
8968 | ||
b15fa79e AM |
8969 | static bfd_boolean |
8970 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
8971 | { | |
8972 | char *name; | |
8973 | asection *sect; | |
8974 | size_t len; | |
8975 | ||
8976 | /* Use note name as section name. */ | |
8977 | len = note->namesz; | |
a50b1753 | 8978 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
8979 | if (name == NULL) |
8980 | return FALSE; | |
8981 | memcpy (name, note->namedata, len); | |
8982 | name[len - 1] = '\0'; | |
8983 | ||
8984 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
8985 | if (sect == NULL) | |
8986 | return FALSE; | |
8987 | ||
8988 | sect->size = note->descsz; | |
8989 | sect->filepos = note->descpos; | |
8990 | sect->alignment_power = 1; | |
8991 | ||
8992 | return TRUE; | |
8993 | } | |
8994 | ||
7c76fa91 MS |
8995 | /* Function: elfcore_write_note |
8996 | ||
47d9a591 | 8997 | Inputs: |
a39f3346 | 8998 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
8999 | name of note |
9000 | type of note | |
9001 | data for note | |
9002 | size of data for note | |
9003 | ||
a39f3346 AM |
9004 | Writes note to end of buffer. ELF64 notes are written exactly as |
9005 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
9006 | that they ought to have 8-byte namesz and descsz field, and have | |
9007 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
9008 | ||
7c76fa91 | 9009 | Return: |
a39f3346 | 9010 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
9011 | |
9012 | char * | |
a39f3346 | 9013 | elfcore_write_note (bfd *abfd, |
217aa764 | 9014 | char *buf, |
a39f3346 | 9015 | int *bufsiz, |
217aa764 | 9016 | const char *name, |
a39f3346 | 9017 | int type, |
217aa764 | 9018 | const void *input, |
a39f3346 | 9019 | int size) |
7c76fa91 MS |
9020 | { |
9021 | Elf_External_Note *xnp; | |
d4c88bbb | 9022 | size_t namesz; |
d4c88bbb | 9023 | size_t newspace; |
a39f3346 | 9024 | char *dest; |
7c76fa91 | 9025 | |
d4c88bbb | 9026 | namesz = 0; |
d4c88bbb | 9027 | if (name != NULL) |
a39f3346 | 9028 | namesz = strlen (name) + 1; |
d4c88bbb | 9029 | |
a39f3346 | 9030 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 9031 | |
a50b1753 | 9032 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
9033 | if (buf == NULL) |
9034 | return buf; | |
a39f3346 | 9035 | dest = buf + *bufsiz; |
7c76fa91 MS |
9036 | *bufsiz += newspace; |
9037 | xnp = (Elf_External_Note *) dest; | |
9038 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
9039 | H_PUT_32 (abfd, size, xnp->descsz); | |
9040 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
9041 | dest = xnp->name; |
9042 | if (name != NULL) | |
9043 | { | |
9044 | memcpy (dest, name, namesz); | |
9045 | dest += namesz; | |
a39f3346 | 9046 | while (namesz & 3) |
d4c88bbb AM |
9047 | { |
9048 | *dest++ = '\0'; | |
a39f3346 | 9049 | ++namesz; |
d4c88bbb AM |
9050 | } |
9051 | } | |
9052 | memcpy (dest, input, size); | |
a39f3346 AM |
9053 | dest += size; |
9054 | while (size & 3) | |
9055 | { | |
9056 | *dest++ = '\0'; | |
9057 | ++size; | |
9058 | } | |
9059 | return buf; | |
7c76fa91 MS |
9060 | } |
9061 | ||
7c76fa91 | 9062 | char * |
217aa764 AM |
9063 | elfcore_write_prpsinfo (bfd *abfd, |
9064 | char *buf, | |
9065 | int *bufsiz, | |
9066 | const char *fname, | |
9067 | const char *psargs) | |
7c76fa91 | 9068 | { |
183e98be AM |
9069 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9070 | ||
9071 | if (bed->elf_backend_write_core_note != NULL) | |
9072 | { | |
9073 | char *ret; | |
9074 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9075 | NT_PRPSINFO, fname, psargs); | |
9076 | if (ret != NULL) | |
9077 | return ret; | |
9078 | } | |
7c76fa91 | 9079 | |
1f20dca5 | 9080 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
183e98be AM |
9081 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
9082 | if (bed->s->elfclass == ELFCLASS32) | |
9083 | { | |
9084 | #if defined (HAVE_PSINFO32_T) | |
9085 | psinfo32_t data; | |
9086 | int note_type = NT_PSINFO; | |
9087 | #else | |
9088 | prpsinfo32_t data; | |
9089 | int note_type = NT_PRPSINFO; | |
9090 | #endif | |
9091 | ||
9092 | memset (&data, 0, sizeof (data)); | |
9093 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9094 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9095 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9096 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
9097 | } |
9098 | else | |
9099 | #endif | |
9100 | { | |
7c76fa91 | 9101 | #if defined (HAVE_PSINFO_T) |
183e98be AM |
9102 | psinfo_t data; |
9103 | int note_type = NT_PSINFO; | |
7c76fa91 | 9104 | #else |
183e98be AM |
9105 | prpsinfo_t data; |
9106 | int note_type = NT_PRPSINFO; | |
7c76fa91 MS |
9107 | #endif |
9108 | ||
183e98be AM |
9109 | memset (&data, 0, sizeof (data)); |
9110 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9111 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9112 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9113 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 9114 | } |
7c76fa91 MS |
9115 | #endif /* PSINFO_T or PRPSINFO_T */ |
9116 | ||
1f20dca5 UW |
9117 | free (buf); |
9118 | return NULL; | |
9119 | } | |
9120 | ||
7c76fa91 | 9121 | char * |
217aa764 AM |
9122 | elfcore_write_prstatus (bfd *abfd, |
9123 | char *buf, | |
9124 | int *bufsiz, | |
9125 | long pid, | |
9126 | int cursig, | |
9127 | const void *gregs) | |
7c76fa91 | 9128 | { |
183e98be | 9129 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 9130 | |
183e98be AM |
9131 | if (bed->elf_backend_write_core_note != NULL) |
9132 | { | |
9133 | char *ret; | |
9134 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9135 | NT_PRSTATUS, | |
9136 | pid, cursig, gregs); | |
9137 | if (ret != NULL) | |
9138 | return ret; | |
9139 | } | |
9140 | ||
1f20dca5 | 9141 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
9142 | #if defined (HAVE_PRSTATUS32_T) |
9143 | if (bed->s->elfclass == ELFCLASS32) | |
9144 | { | |
9145 | prstatus32_t prstat; | |
9146 | ||
9147 | memset (&prstat, 0, sizeof (prstat)); | |
9148 | prstat.pr_pid = pid; | |
9149 | prstat.pr_cursig = cursig; | |
9150 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9151 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9152 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9153 | } | |
9154 | else | |
9155 | #endif | |
9156 | { | |
9157 | prstatus_t prstat; | |
9158 | ||
9159 | memset (&prstat, 0, sizeof (prstat)); | |
9160 | prstat.pr_pid = pid; | |
9161 | prstat.pr_cursig = cursig; | |
9162 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9163 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9164 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9165 | } | |
7c76fa91 MS |
9166 | #endif /* HAVE_PRSTATUS_T */ |
9167 | ||
1f20dca5 UW |
9168 | free (buf); |
9169 | return NULL; | |
9170 | } | |
9171 | ||
51316059 MS |
9172 | #if defined (HAVE_LWPSTATUS_T) |
9173 | char * | |
217aa764 AM |
9174 | elfcore_write_lwpstatus (bfd *abfd, |
9175 | char *buf, | |
9176 | int *bufsiz, | |
9177 | long pid, | |
9178 | int cursig, | |
9179 | const void *gregs) | |
51316059 MS |
9180 | { |
9181 | lwpstatus_t lwpstat; | |
183e98be | 9182 | const char *note_name = "CORE"; |
51316059 MS |
9183 | |
9184 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
9185 | lwpstat.pr_lwpid = pid >> 16; | |
9186 | lwpstat.pr_cursig = cursig; | |
9187 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
9188 | memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); | |
9189 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
9190 | #if !defined(gregs) | |
9191 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
9192 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
9193 | #else | |
9194 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
9195 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
9196 | #endif | |
9197 | #endif | |
47d9a591 | 9198 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
9199 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
9200 | } | |
9201 | #endif /* HAVE_LWPSTATUS_T */ | |
9202 | ||
7c76fa91 MS |
9203 | #if defined (HAVE_PSTATUS_T) |
9204 | char * | |
217aa764 AM |
9205 | elfcore_write_pstatus (bfd *abfd, |
9206 | char *buf, | |
9207 | int *bufsiz, | |
9208 | long pid, | |
6c10990d NC |
9209 | int cursig ATTRIBUTE_UNUSED, |
9210 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 9211 | { |
183e98be AM |
9212 | const char *note_name = "CORE"; |
9213 | #if defined (HAVE_PSTATUS32_T) | |
9214 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 9215 | |
183e98be AM |
9216 | if (bed->s->elfclass == ELFCLASS32) |
9217 | { | |
9218 | pstatus32_t pstat; | |
9219 | ||
9220 | memset (&pstat, 0, sizeof (pstat)); | |
9221 | pstat.pr_pid = pid & 0xffff; | |
9222 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9223 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9224 | return buf; | |
9225 | } | |
9226 | else | |
9227 | #endif | |
9228 | { | |
9229 | pstatus_t pstat; | |
9230 | ||
9231 | memset (&pstat, 0, sizeof (pstat)); | |
9232 | pstat.pr_pid = pid & 0xffff; | |
9233 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9234 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9235 | return buf; | |
9236 | } | |
7c76fa91 MS |
9237 | } |
9238 | #endif /* HAVE_PSTATUS_T */ | |
9239 | ||
9240 | char * | |
217aa764 AM |
9241 | elfcore_write_prfpreg (bfd *abfd, |
9242 | char *buf, | |
9243 | int *bufsiz, | |
9244 | const void *fpregs, | |
9245 | int size) | |
7c76fa91 | 9246 | { |
183e98be | 9247 | const char *note_name = "CORE"; |
47d9a591 | 9248 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9249 | note_name, NT_FPREGSET, fpregs, size); |
9250 | } | |
9251 | ||
9252 | char * | |
217aa764 AM |
9253 | elfcore_write_prxfpreg (bfd *abfd, |
9254 | char *buf, | |
9255 | int *bufsiz, | |
9256 | const void *xfpregs, | |
9257 | int size) | |
7c76fa91 MS |
9258 | { |
9259 | char *note_name = "LINUX"; | |
47d9a591 | 9260 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9261 | note_name, NT_PRXFPREG, xfpregs, size); |
9262 | } | |
9263 | ||
4339cae0 L |
9264 | char * |
9265 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
9266 | const void *xfpregs, int size) | |
9267 | { | |
9268 | char *note_name = "LINUX"; | |
9269 | return elfcore_write_note (abfd, buf, bufsiz, | |
9270 | note_name, NT_X86_XSTATE, xfpregs, size); | |
9271 | } | |
9272 | ||
97753bd5 AM |
9273 | char * |
9274 | elfcore_write_ppc_vmx (bfd *abfd, | |
9275 | char *buf, | |
9276 | int *bufsiz, | |
9277 | const void *ppc_vmx, | |
9278 | int size) | |
9279 | { | |
9280 | char *note_name = "LINUX"; | |
9281 | return elfcore_write_note (abfd, buf, bufsiz, | |
9282 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
9283 | } | |
9284 | ||
89eeb0bc LM |
9285 | char * |
9286 | elfcore_write_ppc_vsx (bfd *abfd, | |
9287 | char *buf, | |
9288 | int *bufsiz, | |
9289 | const void *ppc_vsx, | |
9290 | int size) | |
9291 | { | |
9292 | char *note_name = "LINUX"; | |
9293 | return elfcore_write_note (abfd, buf, bufsiz, | |
9294 | note_name, NT_PPC_VSX, ppc_vsx, size); | |
9295 | } | |
9296 | ||
0675e188 UW |
9297 | static char * |
9298 | elfcore_write_s390_high_gprs (bfd *abfd, | |
9299 | char *buf, | |
9300 | int *bufsiz, | |
9301 | const void *s390_high_gprs, | |
9302 | int size) | |
9303 | { | |
9304 | char *note_name = "LINUX"; | |
9305 | return elfcore_write_note (abfd, buf, bufsiz, | |
9306 | note_name, NT_S390_HIGH_GPRS, | |
9307 | s390_high_gprs, size); | |
9308 | } | |
9309 | ||
d7eeb400 MS |
9310 | char * |
9311 | elfcore_write_s390_timer (bfd *abfd, | |
9312 | char *buf, | |
9313 | int *bufsiz, | |
9314 | const void *s390_timer, | |
9315 | int size) | |
9316 | { | |
9317 | char *note_name = "LINUX"; | |
9318 | return elfcore_write_note (abfd, buf, bufsiz, | |
9319 | note_name, NT_S390_TIMER, s390_timer, size); | |
9320 | } | |
9321 | ||
9322 | char * | |
9323 | elfcore_write_s390_todcmp (bfd *abfd, | |
9324 | char *buf, | |
9325 | int *bufsiz, | |
9326 | const void *s390_todcmp, | |
9327 | int size) | |
9328 | { | |
9329 | char *note_name = "LINUX"; | |
9330 | return elfcore_write_note (abfd, buf, bufsiz, | |
9331 | note_name, NT_S390_TODCMP, s390_todcmp, size); | |
9332 | } | |
9333 | ||
9334 | char * | |
9335 | elfcore_write_s390_todpreg (bfd *abfd, | |
9336 | char *buf, | |
9337 | int *bufsiz, | |
9338 | const void *s390_todpreg, | |
9339 | int size) | |
9340 | { | |
9341 | char *note_name = "LINUX"; | |
9342 | return elfcore_write_note (abfd, buf, bufsiz, | |
9343 | note_name, NT_S390_TODPREG, s390_todpreg, size); | |
9344 | } | |
9345 | ||
9346 | char * | |
9347 | elfcore_write_s390_ctrs (bfd *abfd, | |
9348 | char *buf, | |
9349 | int *bufsiz, | |
9350 | const void *s390_ctrs, | |
9351 | int size) | |
9352 | { | |
9353 | char *note_name = "LINUX"; | |
9354 | return elfcore_write_note (abfd, buf, bufsiz, | |
9355 | note_name, NT_S390_CTRS, s390_ctrs, size); | |
9356 | } | |
9357 | ||
9358 | char * | |
9359 | elfcore_write_s390_prefix (bfd *abfd, | |
9360 | char *buf, | |
9361 | int *bufsiz, | |
9362 | const void *s390_prefix, | |
9363 | int size) | |
9364 | { | |
9365 | char *note_name = "LINUX"; | |
9366 | return elfcore_write_note (abfd, buf, bufsiz, | |
9367 | note_name, NT_S390_PREFIX, s390_prefix, size); | |
9368 | } | |
9369 | ||
355b81d9 UW |
9370 | char * |
9371 | elfcore_write_s390_last_break (bfd *abfd, | |
9372 | char *buf, | |
9373 | int *bufsiz, | |
9374 | const void *s390_last_break, | |
9375 | int size) | |
9376 | { | |
9377 | char *note_name = "LINUX"; | |
9378 | return elfcore_write_note (abfd, buf, bufsiz, | |
9379 | note_name, NT_S390_LAST_BREAK, | |
9380 | s390_last_break, size); | |
9381 | } | |
9382 | ||
9383 | char * | |
9384 | elfcore_write_s390_system_call (bfd *abfd, | |
9385 | char *buf, | |
9386 | int *bufsiz, | |
9387 | const void *s390_system_call, | |
9388 | int size) | |
9389 | { | |
9390 | char *note_name = "LINUX"; | |
9391 | return elfcore_write_note (abfd, buf, bufsiz, | |
9392 | note_name, NT_S390_SYSTEM_CALL, | |
9393 | s390_system_call, size); | |
9394 | } | |
9395 | ||
faa9a424 UW |
9396 | char * |
9397 | elfcore_write_arm_vfp (bfd *abfd, | |
9398 | char *buf, | |
9399 | int *bufsiz, | |
9400 | const void *arm_vfp, | |
9401 | int size) | |
9402 | { | |
9403 | char *note_name = "LINUX"; | |
9404 | return elfcore_write_note (abfd, buf, bufsiz, | |
9405 | note_name, NT_ARM_VFP, arm_vfp, size); | |
9406 | } | |
9407 | ||
bb864ac1 CES |
9408 | char * |
9409 | elfcore_write_register_note (bfd *abfd, | |
9410 | char *buf, | |
9411 | int *bufsiz, | |
9412 | const char *section, | |
9413 | const void *data, | |
9414 | int size) | |
9415 | { | |
9416 | if (strcmp (section, ".reg2") == 0) | |
9417 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
9418 | if (strcmp (section, ".reg-xfp") == 0) | |
9419 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
9420 | if (strcmp (section, ".reg-xstate") == 0) |
9421 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9422 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
9423 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
9424 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
9425 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
9426 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
9427 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
9428 | if (strcmp (section, ".reg-s390-timer") == 0) |
9429 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
9430 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
9431 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
9432 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
9433 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
9434 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
9435 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
9436 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
9437 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
9438 | if (strcmp (section, ".reg-s390-last-break") == 0) |
9439 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
9440 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
9441 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
9442 | if (strcmp (section, ".reg-arm-vfp") == 0) |
9443 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9444 | return NULL; |
9445 | } | |
9446 | ||
b34976b6 | 9447 | static bfd_boolean |
718175fa | 9448 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset) |
252b5132 | 9449 | { |
c044fabd | 9450 | char *p; |
252b5132 | 9451 | |
252b5132 RH |
9452 | p = buf; |
9453 | while (p < buf + size) | |
9454 | { | |
c044fabd KH |
9455 | /* FIXME: bad alignment assumption. */ |
9456 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
9457 | Elf_Internal_Note in; |
9458 | ||
baea7ef1 AM |
9459 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
9460 | return FALSE; | |
9461 | ||
dc810e39 | 9462 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 9463 | |
dc810e39 | 9464 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 9465 | in.namedata = xnp->name; |
baea7ef1 AM |
9466 | if (in.namesz > buf - in.namedata + size) |
9467 | return FALSE; | |
252b5132 | 9468 | |
dc810e39 | 9469 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
9470 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
9471 | in.descpos = offset + (in.descdata - buf); | |
baea7ef1 AM |
9472 | if (in.descsz != 0 |
9473 | && (in.descdata >= buf + size | |
9474 | || in.descsz > buf - in.descdata + size)) | |
9475 | return FALSE; | |
252b5132 | 9476 | |
718175fa JK |
9477 | switch (bfd_get_format (abfd)) |
9478 | { | |
9479 | default: | |
9480 | return TRUE; | |
9481 | ||
9482 | case bfd_core: | |
9483 | if (CONST_STRNEQ (in.namedata, "NetBSD-CORE")) | |
9484 | { | |
9485 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |
9486 | return FALSE; | |
9487 | } | |
67cc5033 MK |
9488 | else if (CONST_STRNEQ (in.namedata, "OpenBSD")) |
9489 | { | |
9490 | if (! elfcore_grok_openbsd_note (abfd, &in)) | |
9491 | return FALSE; | |
9492 | } | |
718175fa JK |
9493 | else if (CONST_STRNEQ (in.namedata, "QNX")) |
9494 | { | |
9495 | if (! elfcore_grok_nto_note (abfd, &in)) | |
9496 | return FALSE; | |
9497 | } | |
b15fa79e AM |
9498 | else if (CONST_STRNEQ (in.namedata, "SPU/")) |
9499 | { | |
9500 | if (! elfcore_grok_spu_note (abfd, &in)) | |
9501 | return FALSE; | |
9502 | } | |
718175fa JK |
9503 | else |
9504 | { | |
9505 | if (! elfcore_grok_note (abfd, &in)) | |
9506 | return FALSE; | |
9507 | } | |
9508 | break; | |
9509 | ||
9510 | case bfd_object: | |
9511 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
9512 | { | |
9513 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
9514 | return FALSE; | |
9515 | } | |
e21e5835 NC |
9516 | else if (in.namesz == sizeof "stapsdt" |
9517 | && strcmp (in.namedata, "stapsdt") == 0) | |
9518 | { | |
9519 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
9520 | return FALSE; | |
9521 | } | |
718175fa | 9522 | break; |
08a40648 | 9523 | } |
252b5132 RH |
9524 | |
9525 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
9526 | } | |
9527 | ||
718175fa JK |
9528 | return TRUE; |
9529 | } | |
9530 | ||
9531 | static bfd_boolean | |
9532 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) | |
9533 | { | |
9534 | char *buf; | |
9535 | ||
9536 | if (size <= 0) | |
9537 | return TRUE; | |
9538 | ||
9539 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
9540 | return FALSE; | |
9541 | ||
a50b1753 | 9542 | buf = (char *) bfd_malloc (size); |
718175fa JK |
9543 | if (buf == NULL) |
9544 | return FALSE; | |
9545 | ||
9546 | if (bfd_bread (buf, size, abfd) != size | |
9547 | || !elf_parse_notes (abfd, buf, size, offset)) | |
9548 | { | |
9549 | free (buf); | |
9550 | return FALSE; | |
9551 | } | |
9552 | ||
252b5132 | 9553 | free (buf); |
b34976b6 | 9554 | return TRUE; |
252b5132 | 9555 | } |
98d8431c JB |
9556 | \f |
9557 | /* Providing external access to the ELF program header table. */ | |
9558 | ||
9559 | /* Return an upper bound on the number of bytes required to store a | |
9560 | copy of ABFD's program header table entries. Return -1 if an error | |
9561 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9562 | |
98d8431c | 9563 | long |
217aa764 | 9564 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
9565 | { |
9566 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9567 | { | |
9568 | bfd_set_error (bfd_error_wrong_format); | |
9569 | return -1; | |
9570 | } | |
9571 | ||
936e320b | 9572 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
9573 | } |
9574 | ||
98d8431c JB |
9575 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
9576 | will be stored as an array of Elf_Internal_Phdr structures, as | |
9577 | defined in include/elf/internal.h. To find out how large the | |
9578 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
9579 | ||
9580 | Return the number of program header table entries read, or -1 if an | |
9581 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9582 | |
98d8431c | 9583 | int |
217aa764 | 9584 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
9585 | { |
9586 | int num_phdrs; | |
9587 | ||
9588 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9589 | { | |
9590 | bfd_set_error (bfd_error_wrong_format); | |
9591 | return -1; | |
9592 | } | |
9593 | ||
9594 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 9595 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
9596 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
9597 | ||
9598 | return num_phdrs; | |
9599 | } | |
ae4221d7 | 9600 | |
db6751f2 | 9601 | enum elf_reloc_type_class |
217aa764 | 9602 | _bfd_elf_reloc_type_class (const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) |
db6751f2 JJ |
9603 | { |
9604 | return reloc_class_normal; | |
9605 | } | |
f8df10f4 | 9606 | |
47d9a591 | 9607 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
9608 | relocation against a local symbol. */ |
9609 | ||
9610 | bfd_vma | |
217aa764 AM |
9611 | _bfd_elf_rela_local_sym (bfd *abfd, |
9612 | Elf_Internal_Sym *sym, | |
8517fae7 | 9613 | asection **psec, |
217aa764 | 9614 | Elf_Internal_Rela *rel) |
f8df10f4 | 9615 | { |
8517fae7 | 9616 | asection *sec = *psec; |
f8df10f4 JJ |
9617 | bfd_vma relocation; |
9618 | ||
9619 | relocation = (sec->output_section->vma | |
9620 | + sec->output_offset | |
9621 | + sym->st_value); | |
9622 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 9623 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 9624 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 9625 | { |
f8df10f4 | 9626 | rel->r_addend = |
8517fae7 | 9627 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 9628 | elf_section_data (sec)->sec_info, |
753731ee AM |
9629 | sym->st_value + rel->r_addend); |
9630 | if (sec != *psec) | |
9631 | { | |
9632 | /* If we have changed the section, and our original section is | |
9633 | marked with SEC_EXCLUDE, it means that the original | |
9634 | SEC_MERGE section has been completely subsumed in some | |
9635 | other SEC_MERGE section. In this case, we need to leave | |
9636 | some info around for --emit-relocs. */ | |
9637 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
9638 | sec->kept_section = *psec; | |
9639 | sec = *psec; | |
9640 | } | |
8517fae7 AM |
9641 | rel->r_addend -= relocation; |
9642 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
9643 | } |
9644 | return relocation; | |
9645 | } | |
c629eae0 JJ |
9646 | |
9647 | bfd_vma | |
217aa764 AM |
9648 | _bfd_elf_rel_local_sym (bfd *abfd, |
9649 | Elf_Internal_Sym *sym, | |
9650 | asection **psec, | |
9651 | bfd_vma addend) | |
47d9a591 | 9652 | { |
c629eae0 JJ |
9653 | asection *sec = *psec; |
9654 | ||
dbaa2011 | 9655 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
9656 | return sym->st_value + addend; |
9657 | ||
9658 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 9659 | elf_section_data (sec)->sec_info, |
753731ee | 9660 | sym->st_value + addend); |
c629eae0 JJ |
9661 | } |
9662 | ||
9663 | bfd_vma | |
217aa764 | 9664 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 9665 | struct bfd_link_info *info, |
217aa764 AM |
9666 | asection *sec, |
9667 | bfd_vma offset) | |
c629eae0 | 9668 | { |
68bfbfcc | 9669 | switch (sec->sec_info_type) |
65765700 | 9670 | { |
dbaa2011 | 9671 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
9672 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
9673 | offset); | |
dbaa2011 | 9674 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 9675 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
65765700 | 9676 | default: |
310fd250 L |
9677 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
9678 | { | |
9679 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9680 | bfd_size_type address_size = bed->s->arch_size / 8; | |
9681 | offset = sec->size - offset - address_size; | |
9682 | } | |
65765700 JJ |
9683 | return offset; |
9684 | } | |
c629eae0 | 9685 | } |
3333a7c3 RM |
9686 | \f |
9687 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
9688 | reconstruct an ELF file by reading the segments out of remote memory | |
9689 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
9690 | points to. If not null, *LOADBASEP is filled in with the difference | |
9691 | between the VMAs from which the segments were read, and the VMAs the | |
9692 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
9693 | ||
9694 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
9695 | remote memory at target address VMA into the local buffer at MYADDR; it | |
9696 | should return zero on success or an `errno' code on failure. TEMPL must | |
9697 | be a BFD for an ELF target with the word size and byte order found in | |
9698 | the remote memory. */ | |
9699 | ||
9700 | bfd * | |
217aa764 AM |
9701 | bfd_elf_bfd_from_remote_memory |
9702 | (bfd *templ, | |
9703 | bfd_vma ehdr_vma, | |
9704 | bfd_vma *loadbasep, | |
fe78531d | 9705 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
9706 | { |
9707 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
9708 | (templ, ehdr_vma, loadbasep, target_read_memory); | |
9709 | } | |
4c45e5c9 JJ |
9710 | \f |
9711 | long | |
c9727e01 AM |
9712 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
9713 | long symcount ATTRIBUTE_UNUSED, | |
9714 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 9715 | long dynsymcount, |
c9727e01 AM |
9716 | asymbol **dynsyms, |
9717 | asymbol **ret) | |
4c45e5c9 JJ |
9718 | { |
9719 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9720 | asection *relplt; | |
9721 | asymbol *s; | |
9722 | const char *relplt_name; | |
9723 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
9724 | arelent *p; | |
9725 | long count, i, n; | |
9726 | size_t size; | |
9727 | Elf_Internal_Shdr *hdr; | |
9728 | char *names; | |
9729 | asection *plt; | |
9730 | ||
8615f3f2 AM |
9731 | *ret = NULL; |
9732 | ||
90e3cdf2 JJ |
9733 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
9734 | return 0; | |
9735 | ||
8615f3f2 AM |
9736 | if (dynsymcount <= 0) |
9737 | return 0; | |
9738 | ||
4c45e5c9 JJ |
9739 | if (!bed->plt_sym_val) |
9740 | return 0; | |
9741 | ||
9742 | relplt_name = bed->relplt_name; | |
9743 | if (relplt_name == NULL) | |
d35fd659 | 9744 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
9745 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
9746 | if (relplt == NULL) | |
9747 | return 0; | |
9748 | ||
9749 | hdr = &elf_section_data (relplt)->this_hdr; | |
9750 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
9751 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
9752 | return 0; | |
9753 | ||
9754 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
9755 | if (plt == NULL) | |
9756 | return 0; | |
9757 | ||
9758 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 9759 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
9760 | return -1; |
9761 | ||
eea6121a | 9762 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
9763 | size = count * sizeof (asymbol); |
9764 | p = relplt->relocation; | |
cb53bf42 | 9765 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
9766 | { |
9767 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
9768 | if (p->addend != 0) | |
9769 | { | |
9770 | #ifdef BFD64 | |
9771 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
9772 | #else | |
9773 | size += sizeof ("+0x") - 1 + 8; | |
9774 | #endif | |
9775 | } | |
9776 | } | |
4c45e5c9 | 9777 | |
a50b1753 | 9778 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
9779 | if (s == NULL) |
9780 | return -1; | |
9781 | ||
9782 | names = (char *) (s + count); | |
9783 | p = relplt->relocation; | |
9784 | n = 0; | |
cb53bf42 | 9785 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
9786 | { |
9787 | size_t len; | |
9788 | bfd_vma addr; | |
9789 | ||
9790 | addr = bed->plt_sym_val (i, plt, p); | |
9791 | if (addr == (bfd_vma) -1) | |
9792 | continue; | |
9793 | ||
9794 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
9795 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
9796 | we are defining a symbol, ensure one of them is set. */ | |
9797 | if ((s->flags & BSF_LOCAL) == 0) | |
9798 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 9799 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
9800 | s->section = plt; |
9801 | s->value = addr - plt->vma; | |
9802 | s->name = names; | |
8f39ba8e | 9803 | s->udata.p = NULL; |
4c45e5c9 JJ |
9804 | len = strlen ((*p->sym_ptr_ptr)->name); |
9805 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
9806 | names += len; | |
041de40d AM |
9807 | if (p->addend != 0) |
9808 | { | |
1d770845 | 9809 | char buf[30], *a; |
d324f6d6 | 9810 | |
041de40d AM |
9811 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
9812 | names += sizeof ("+0x") - 1; | |
1d770845 L |
9813 | bfd_sprintf_vma (abfd, buf, p->addend); |
9814 | for (a = buf; *a == '0'; ++a) | |
9815 | ; | |
9816 | len = strlen (a); | |
9817 | memcpy (names, a, len); | |
9818 | names += len; | |
041de40d | 9819 | } |
4c45e5c9 JJ |
9820 | memcpy (names, "@plt", sizeof ("@plt")); |
9821 | names += sizeof ("@plt"); | |
8f39ba8e | 9822 | ++s, ++n; |
4c45e5c9 JJ |
9823 | } |
9824 | ||
9825 | return n; | |
9826 | } | |
3d7f7666 | 9827 | |
3b22753a L |
9828 | /* It is only used by x86-64 so far. */ |
9829 | asection _bfd_elf_large_com_section | |
9830 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, | |
f592407e | 9831 | SEC_IS_COMMON, NULL, "LARGE_COMMON", 0); |
ecca9871 | 9832 | |
d1036acb L |
9833 | void |
9834 | _bfd_elf_set_osabi (bfd * abfd, | |
9835 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
9836 | { | |
9837 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
9838 | ||
9839 | i_ehdrp = elf_elfheader (abfd); | |
9840 | ||
9841 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
9842 | |
9843 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 9844 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 9845 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 9846 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 9847 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 9848 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 9849 | } |
fcb93ecf PB |
9850 | |
9851 | ||
9852 | /* Return TRUE for ELF symbol types that represent functions. | |
9853 | This is the default version of this function, which is sufficient for | |
d8045f23 | 9854 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
9855 | |
9856 | bfd_boolean | |
9857 | _bfd_elf_is_function_type (unsigned int type) | |
9858 | { | |
d8045f23 NC |
9859 | return (type == STT_FUNC |
9860 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 9861 | } |
9f296da3 | 9862 | |
aef36ac1 AM |
9863 | /* If the ELF symbol SYM might be a function in SEC, return the |
9864 | function size and set *CODE_OFF to the function's entry point, | |
9865 | otherwise return zero. */ | |
9f296da3 | 9866 | |
aef36ac1 AM |
9867 | bfd_size_type |
9868 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
9869 | bfd_vma *code_off) | |
9f296da3 | 9870 | { |
aef36ac1 AM |
9871 | bfd_size_type size; |
9872 | ||
ff9e0f5b | 9873 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
9874 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
9875 | || sym->section != sec) | |
9876 | return 0; | |
ff9e0f5b | 9877 | |
ff9e0f5b | 9878 | *code_off = sym->value; |
aef36ac1 AM |
9879 | size = 0; |
9880 | if (!(sym->flags & BSF_SYNTHETIC)) | |
9881 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
9882 | if (size == 0) | |
9883 | size = 1; | |
9884 | return size; | |
9f296da3 | 9885 | } |