Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 AC |
2 | |
3 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, | |
652451f8 YZ |
4 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, |
5 | 2013 | |
72a80a16 | 6 | Free Software Foundation, Inc. |
252b5132 | 7 | |
5e8d7549 | 8 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 9 | |
5e8d7549 NC |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 12 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 13 | (at your option) any later version. |
252b5132 | 14 | |
5e8d7549 NC |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
252b5132 | 19 | |
5e8d7549 | 20 | You should have received a copy of the GNU General Public License |
b34976b6 | 21 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
22 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
23 | MA 02110-1301, USA. */ | |
24 | ||
252b5132 | 25 | |
1b74d094 BW |
26 | /* |
27 | SECTION | |
252b5132 RH |
28 | ELF backends |
29 | ||
30 | BFD support for ELF formats is being worked on. | |
31 | Currently, the best supported back ends are for sparc and i386 | |
32 | (running svr4 or Solaris 2). | |
33 | ||
34 | Documentation of the internals of the support code still needs | |
35 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 36 | haven't bothered yet. */ |
252b5132 | 37 | |
7ee38065 MS |
38 | /* For sparc64-cross-sparc32. */ |
39 | #define _SYSCALL32 | |
252b5132 | 40 | #include "sysdep.h" |
3db64b00 | 41 | #include "bfd.h" |
252b5132 RH |
42 | #include "bfdlink.h" |
43 | #include "libbfd.h" | |
44 | #define ARCH_SIZE 0 | |
45 | #include "elf-bfd.h" | |
e0e8c97f | 46 | #include "libiberty.h" |
ff59fc36 | 47 | #include "safe-ctype.h" |
252b5132 | 48 | |
8bc7f138 L |
49 | #ifdef CORE_HEADER |
50 | #include CORE_HEADER | |
51 | #endif | |
52 | ||
217aa764 | 53 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 54 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 AM |
55 | static bfd_boolean prep_headers (bfd *); |
56 | static bfd_boolean swap_out_syms (bfd *, struct bfd_strtab_hash **, int) ; | |
718175fa JK |
57 | static bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type) ; |
58 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, | |
59 | file_ptr offset); | |
50b2bdb7 | 60 | |
252b5132 RH |
61 | /* Swap version information in and out. The version information is |
62 | currently size independent. If that ever changes, this code will | |
63 | need to move into elfcode.h. */ | |
64 | ||
65 | /* Swap in a Verdef structure. */ | |
66 | ||
67 | void | |
217aa764 AM |
68 | _bfd_elf_swap_verdef_in (bfd *abfd, |
69 | const Elf_External_Verdef *src, | |
70 | Elf_Internal_Verdef *dst) | |
252b5132 | 71 | { |
dc810e39 AM |
72 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
73 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
74 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
75 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
76 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
77 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
78 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
79 | } |
80 | ||
81 | /* Swap out a Verdef structure. */ | |
82 | ||
83 | void | |
217aa764 AM |
84 | _bfd_elf_swap_verdef_out (bfd *abfd, |
85 | const Elf_Internal_Verdef *src, | |
86 | Elf_External_Verdef *dst) | |
252b5132 | 87 | { |
dc810e39 AM |
88 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
89 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
90 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
91 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
92 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
93 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
94 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
95 | } |
96 | ||
97 | /* Swap in a Verdaux structure. */ | |
98 | ||
99 | void | |
217aa764 AM |
100 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
101 | const Elf_External_Verdaux *src, | |
102 | Elf_Internal_Verdaux *dst) | |
252b5132 | 103 | { |
dc810e39 AM |
104 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
105 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
106 | } |
107 | ||
108 | /* Swap out a Verdaux structure. */ | |
109 | ||
110 | void | |
217aa764 AM |
111 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
112 | const Elf_Internal_Verdaux *src, | |
113 | Elf_External_Verdaux *dst) | |
252b5132 | 114 | { |
dc810e39 AM |
115 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
116 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
117 | } |
118 | ||
119 | /* Swap in a Verneed structure. */ | |
120 | ||
121 | void | |
217aa764 AM |
122 | _bfd_elf_swap_verneed_in (bfd *abfd, |
123 | const Elf_External_Verneed *src, | |
124 | Elf_Internal_Verneed *dst) | |
252b5132 | 125 | { |
dc810e39 AM |
126 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
127 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
128 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
129 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
130 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
131 | } |
132 | ||
133 | /* Swap out a Verneed structure. */ | |
134 | ||
135 | void | |
217aa764 AM |
136 | _bfd_elf_swap_verneed_out (bfd *abfd, |
137 | const Elf_Internal_Verneed *src, | |
138 | Elf_External_Verneed *dst) | |
252b5132 | 139 | { |
dc810e39 AM |
140 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
141 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
142 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
143 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
144 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
145 | } |
146 | ||
147 | /* Swap in a Vernaux structure. */ | |
148 | ||
149 | void | |
217aa764 AM |
150 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
151 | const Elf_External_Vernaux *src, | |
152 | Elf_Internal_Vernaux *dst) | |
252b5132 | 153 | { |
dc810e39 AM |
154 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
155 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
156 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
157 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
158 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
159 | } |
160 | ||
161 | /* Swap out a Vernaux structure. */ | |
162 | ||
163 | void | |
217aa764 AM |
164 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
165 | const Elf_Internal_Vernaux *src, | |
166 | Elf_External_Vernaux *dst) | |
252b5132 | 167 | { |
dc810e39 AM |
168 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
169 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
170 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
171 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
172 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
173 | } |
174 | ||
175 | /* Swap in a Versym structure. */ | |
176 | ||
177 | void | |
217aa764 AM |
178 | _bfd_elf_swap_versym_in (bfd *abfd, |
179 | const Elf_External_Versym *src, | |
180 | Elf_Internal_Versym *dst) | |
252b5132 | 181 | { |
dc810e39 | 182 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
183 | } |
184 | ||
185 | /* Swap out a Versym structure. */ | |
186 | ||
187 | void | |
217aa764 AM |
188 | _bfd_elf_swap_versym_out (bfd *abfd, |
189 | const Elf_Internal_Versym *src, | |
190 | Elf_External_Versym *dst) | |
252b5132 | 191 | { |
dc810e39 | 192 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
193 | } |
194 | ||
195 | /* Standard ELF hash function. Do not change this function; you will | |
196 | cause invalid hash tables to be generated. */ | |
3a99b017 | 197 | |
252b5132 | 198 | unsigned long |
217aa764 | 199 | bfd_elf_hash (const char *namearg) |
252b5132 | 200 | { |
3a99b017 | 201 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
202 | unsigned long h = 0; |
203 | unsigned long g; | |
204 | int ch; | |
205 | ||
206 | while ((ch = *name++) != '\0') | |
207 | { | |
208 | h = (h << 4) + ch; | |
209 | if ((g = (h & 0xf0000000)) != 0) | |
210 | { | |
211 | h ^= g >> 24; | |
212 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
213 | this case and on some machines one insn instead of two. */ | |
214 | h ^= g; | |
215 | } | |
216 | } | |
32dfa85d | 217 | return h & 0xffffffff; |
252b5132 RH |
218 | } |
219 | ||
fdc90cb4 JJ |
220 | /* DT_GNU_HASH hash function. Do not change this function; you will |
221 | cause invalid hash tables to be generated. */ | |
222 | ||
223 | unsigned long | |
224 | bfd_elf_gnu_hash (const char *namearg) | |
225 | { | |
226 | const unsigned char *name = (const unsigned char *) namearg; | |
227 | unsigned long h = 5381; | |
228 | unsigned char ch; | |
229 | ||
230 | while ((ch = *name++) != '\0') | |
231 | h = (h << 5) + h + ch; | |
232 | return h & 0xffffffff; | |
233 | } | |
234 | ||
0c8d6e5c AM |
235 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
236 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 237 | bfd_boolean |
0c8d6e5c | 238 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 239 | size_t object_size, |
4dfe6ac6 | 240 | enum elf_target_id object_id) |
252b5132 | 241 | { |
0ffa91dd NC |
242 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
243 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
244 | if (abfd->tdata.any == NULL) | |
245 | return FALSE; | |
252b5132 | 246 | |
0ffa91dd NC |
247 | elf_object_id (abfd) = object_id; |
248 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
b34976b6 | 249 | return TRUE; |
252b5132 RH |
250 | } |
251 | ||
0ffa91dd NC |
252 | |
253 | bfd_boolean | |
ae95ffa6 | 254 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 255 | { |
ae95ffa6 | 256 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 257 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 258 | bed->target_id); |
0ffa91dd NC |
259 | } |
260 | ||
b34976b6 | 261 | bfd_boolean |
217aa764 | 262 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 263 | { |
c044fabd | 264 | /* I think this can be done just like an object file. */ |
ae95ffa6 | 265 | return abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd); |
252b5132 RH |
266 | } |
267 | ||
72a80a16 | 268 | static char * |
217aa764 | 269 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
270 | { |
271 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 272 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
273 | file_ptr offset; |
274 | bfd_size_type shstrtabsize; | |
252b5132 RH |
275 | |
276 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
277 | if (i_shdrp == 0 |
278 | || shindex >= elf_numsections (abfd) | |
279 | || i_shdrp[shindex] == 0) | |
f075ee0c | 280 | return NULL; |
252b5132 | 281 | |
f075ee0c | 282 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
283 | if (shstrtab == NULL) |
284 | { | |
c044fabd | 285 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
286 | offset = i_shdrp[shindex]->sh_offset; |
287 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
288 | |
289 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
290 | in case the string table is not terminated. */ | |
3471d59d | 291 | if (shstrtabsize + 1 <= 1 |
a50b1753 | 292 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL |
c6c60d09 JJ |
293 | || bfd_seek (abfd, offset, SEEK_SET) != 0) |
294 | shstrtab = NULL; | |
295 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
296 | { | |
297 | if (bfd_get_error () != bfd_error_system_call) | |
298 | bfd_set_error (bfd_error_file_truncated); | |
299 | shstrtab = NULL; | |
3471d59d CC |
300 | /* Once we've failed to read it, make sure we don't keep |
301 | trying. Otherwise, we'll keep allocating space for | |
302 | the string table over and over. */ | |
303 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
304 | } |
305 | else | |
306 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 307 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 308 | } |
f075ee0c | 309 | return (char *) shstrtab; |
252b5132 RH |
310 | } |
311 | ||
312 | char * | |
217aa764 AM |
313 | bfd_elf_string_from_elf_section (bfd *abfd, |
314 | unsigned int shindex, | |
315 | unsigned int strindex) | |
252b5132 RH |
316 | { |
317 | Elf_Internal_Shdr *hdr; | |
318 | ||
319 | if (strindex == 0) | |
320 | return ""; | |
321 | ||
74f2e02b AM |
322 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
323 | return NULL; | |
324 | ||
252b5132 RH |
325 | hdr = elf_elfsections (abfd)[shindex]; |
326 | ||
327 | if (hdr->contents == NULL | |
328 | && bfd_elf_get_str_section (abfd, shindex) == NULL) | |
329 | return NULL; | |
330 | ||
331 | if (strindex >= hdr->sh_size) | |
332 | { | |
1b3a8575 | 333 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
252b5132 | 334 | (*_bfd_error_handler) |
d003868e AM |
335 | (_("%B: invalid string offset %u >= %lu for section `%s'"), |
336 | abfd, strindex, (unsigned long) hdr->sh_size, | |
1b3a8575 | 337 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 338 | ? ".shstrtab" |
1b3a8575 | 339 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 340 | return NULL; |
252b5132 RH |
341 | } |
342 | ||
343 | return ((char *) hdr->contents) + strindex; | |
344 | } | |
345 | ||
6cdc0ccc AM |
346 | /* Read and convert symbols to internal format. |
347 | SYMCOUNT specifies the number of symbols to read, starting from | |
348 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
349 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
350 | symbols, and symbol section index extensions, respectively. |
351 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
352 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
353 | |
354 | Elf_Internal_Sym * | |
217aa764 AM |
355 | bfd_elf_get_elf_syms (bfd *ibfd, |
356 | Elf_Internal_Shdr *symtab_hdr, | |
357 | size_t symcount, | |
358 | size_t symoffset, | |
359 | Elf_Internal_Sym *intsym_buf, | |
360 | void *extsym_buf, | |
361 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
362 | { |
363 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 364 | void *alloc_ext; |
df622259 | 365 | const bfd_byte *esym; |
6cdc0ccc AM |
366 | Elf_External_Sym_Shndx *alloc_extshndx; |
367 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 368 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
369 | Elf_Internal_Sym *isym; |
370 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 371 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
372 | size_t extsym_size; |
373 | bfd_size_type amt; | |
374 | file_ptr pos; | |
375 | ||
e44a2c9c AM |
376 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
377 | abort (); | |
378 | ||
6cdc0ccc AM |
379 | if (symcount == 0) |
380 | return intsym_buf; | |
381 | ||
382 | /* Normal syms might have section extension entries. */ | |
383 | shndx_hdr = NULL; | |
384 | if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr) | |
385 | shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr; | |
386 | ||
387 | /* Read the symbols. */ | |
388 | alloc_ext = NULL; | |
389 | alloc_extshndx = NULL; | |
4dd07732 | 390 | alloc_intsym = NULL; |
6cdc0ccc AM |
391 | bed = get_elf_backend_data (ibfd); |
392 | extsym_size = bed->s->sizeof_sym; | |
393 | amt = symcount * extsym_size; | |
394 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |
395 | if (extsym_buf == NULL) | |
396 | { | |
d0fb9a8d | 397 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
398 | extsym_buf = alloc_ext; |
399 | } | |
400 | if (extsym_buf == NULL | |
401 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
402 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
403 | { | |
404 | intsym_buf = NULL; | |
405 | goto out; | |
406 | } | |
407 | ||
408 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
409 | extshndx_buf = NULL; | |
410 | else | |
411 | { | |
412 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |
413 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |
414 | if (extshndx_buf == NULL) | |
415 | { | |
a50b1753 NC |
416 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
417 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); | |
6cdc0ccc AM |
418 | extshndx_buf = alloc_extshndx; |
419 | } | |
420 | if (extshndx_buf == NULL | |
421 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
422 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
423 | { | |
424 | intsym_buf = NULL; | |
425 | goto out; | |
426 | } | |
427 | } | |
428 | ||
429 | if (intsym_buf == NULL) | |
430 | { | |
a50b1753 NC |
431 | alloc_intsym = (Elf_Internal_Sym *) |
432 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); | |
4dd07732 | 433 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
434 | if (intsym_buf == NULL) |
435 | goto out; | |
436 | } | |
437 | ||
438 | /* Convert the symbols to internal form. */ | |
439 | isymend = intsym_buf + symcount; | |
a50b1753 NC |
440 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
441 | shndx = extshndx_buf; | |
6cdc0ccc AM |
442 | isym < isymend; |
443 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
444 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
445 | { | |
446 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
447 | (*_bfd_error_handler) (_("%B symbol number %lu references " | |
448 | "nonexistent SHT_SYMTAB_SHNDX section"), | |
449 | ibfd, (unsigned long) symoffset); | |
4dd07732 AM |
450 | if (alloc_intsym != NULL) |
451 | free (alloc_intsym); | |
8384fb8f AM |
452 | intsym_buf = NULL; |
453 | goto out; | |
454 | } | |
6cdc0ccc AM |
455 | |
456 | out: | |
457 | if (alloc_ext != NULL) | |
458 | free (alloc_ext); | |
459 | if (alloc_extshndx != NULL) | |
460 | free (alloc_extshndx); | |
461 | ||
462 | return intsym_buf; | |
463 | } | |
464 | ||
5cab59f6 AM |
465 | /* Look up a symbol name. */ |
466 | const char * | |
be8dd2ca AM |
467 | bfd_elf_sym_name (bfd *abfd, |
468 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
469 | Elf_Internal_Sym *isym, |
470 | asection *sym_sec) | |
5cab59f6 | 471 | { |
26c61ae5 | 472 | const char *name; |
5cab59f6 | 473 | unsigned int iname = isym->st_name; |
be8dd2ca | 474 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 475 | |
138f35cc JJ |
476 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
477 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 478 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
479 | { |
480 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
481 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
482 | } | |
483 | ||
26c61ae5 L |
484 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
485 | if (name == NULL) | |
486 | name = "(null)"; | |
487 | else if (sym_sec && *name == '\0') | |
488 | name = bfd_section_name (abfd, sym_sec); | |
489 | ||
490 | return name; | |
5cab59f6 AM |
491 | } |
492 | ||
dbb410c3 AM |
493 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
494 | sections. The first element is the flags, the rest are section | |
495 | pointers. */ | |
496 | ||
497 | typedef union elf_internal_group { | |
498 | Elf_Internal_Shdr *shdr; | |
499 | unsigned int flags; | |
500 | } Elf_Internal_Group; | |
501 | ||
b885599b AM |
502 | /* Return the name of the group signature symbol. Why isn't the |
503 | signature just a string? */ | |
504 | ||
505 | static const char * | |
217aa764 | 506 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 507 | { |
9dce4196 | 508 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
509 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
510 | Elf_External_Sym_Shndx eshndx; | |
511 | Elf_Internal_Sym isym; | |
b885599b | 512 | |
13792e9d L |
513 | /* First we need to ensure the symbol table is available. Make sure |
514 | that it is a symbol table section. */ | |
4fbb74a6 AM |
515 | if (ghdr->sh_link >= elf_numsections (abfd)) |
516 | return NULL; | |
13792e9d L |
517 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
518 | if (hdr->sh_type != SHT_SYMTAB | |
519 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
520 | return NULL; |
521 | ||
9dce4196 AM |
522 | /* Go read the symbol. */ |
523 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
524 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
525 | &isym, esym, &eshndx) == NULL) | |
b885599b | 526 | return NULL; |
9dce4196 | 527 | |
26c61ae5 | 528 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
529 | } |
530 | ||
dbb410c3 AM |
531 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
532 | ||
b34976b6 | 533 | static bfd_boolean |
217aa764 | 534 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
535 | { |
536 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
537 | ||
538 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
539 | is set to -1 if there are no SHT_GROUP sections. */ | |
540 | if (num_group == 0) | |
541 | { | |
542 | unsigned int i, shnum; | |
543 | ||
544 | /* First count the number of groups. If we have a SHT_GROUP | |
545 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 546 | shnum = elf_numsections (abfd); |
dbb410c3 | 547 | num_group = 0; |
08a40648 | 548 | |
44534af3 | 549 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 550 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 551 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
552 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
553 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 554 | |
dbb410c3 AM |
555 | for (i = 0; i < shnum; i++) |
556 | { | |
557 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 558 | |
44534af3 | 559 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
560 | num_group += 1; |
561 | } | |
562 | ||
563 | if (num_group == 0) | |
20dbb49d L |
564 | { |
565 | num_group = (unsigned) -1; | |
566 | elf_tdata (abfd)->num_group = num_group; | |
567 | } | |
568 | else | |
dbb410c3 AM |
569 | { |
570 | /* We keep a list of elf section headers for group sections, | |
571 | so we can find them quickly. */ | |
20dbb49d | 572 | bfd_size_type amt; |
d0fb9a8d | 573 | |
20dbb49d | 574 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 NC |
575 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
576 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 577 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 578 | return FALSE; |
dbb410c3 AM |
579 | |
580 | num_group = 0; | |
581 | for (i = 0; i < shnum; i++) | |
582 | { | |
583 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 584 | |
44534af3 | 585 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 586 | { |
973ffd63 | 587 | unsigned char *src; |
dbb410c3 AM |
588 | Elf_Internal_Group *dest; |
589 | ||
590 | /* Add to list of sections. */ | |
591 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
592 | num_group += 1; | |
593 | ||
594 | /* Read the raw contents. */ | |
595 | BFD_ASSERT (sizeof (*dest) >= 4); | |
596 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 NC |
597 | shdr->contents = (unsigned char *) |
598 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); | |
1783205a NC |
599 | /* PR binutils/4110: Handle corrupt group headers. */ |
600 | if (shdr->contents == NULL) | |
601 | { | |
602 | _bfd_error_handler | |
603 | (_("%B: Corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); | |
604 | bfd_set_error (bfd_error_bad_value); | |
605 | return FALSE; | |
606 | } | |
607 | ||
608 | memset (shdr->contents, 0, amt); | |
609 | ||
610 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
611 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
612 | != shdr->sh_size)) | |
b34976b6 | 613 | return FALSE; |
dbb410c3 AM |
614 | |
615 | /* Translate raw contents, a flag word followed by an | |
616 | array of elf section indices all in target byte order, | |
617 | to the flag word followed by an array of elf section | |
618 | pointers. */ | |
619 | src = shdr->contents + shdr->sh_size; | |
620 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
621 | while (1) | |
622 | { | |
623 | unsigned int idx; | |
624 | ||
625 | src -= 4; | |
626 | --dest; | |
627 | idx = H_GET_32 (abfd, src); | |
628 | if (src == shdr->contents) | |
629 | { | |
630 | dest->flags = idx; | |
b885599b AM |
631 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
632 | shdr->bfd_section->flags | |
633 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
634 | break; |
635 | } | |
636 | if (idx >= shnum) | |
637 | { | |
638 | ((*_bfd_error_handler) | |
d003868e | 639 | (_("%B: invalid SHT_GROUP entry"), abfd)); |
dbb410c3 AM |
640 | idx = 0; |
641 | } | |
642 | dest->shdr = elf_elfsections (abfd)[idx]; | |
643 | } | |
644 | } | |
645 | } | |
646 | } | |
647 | } | |
648 | ||
649 | if (num_group != (unsigned) -1) | |
650 | { | |
651 | unsigned int i; | |
652 | ||
653 | for (i = 0; i < num_group; i++) | |
654 | { | |
655 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
656 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
657 | unsigned int n_elt = shdr->sh_size / 4; | |
658 | ||
659 | /* Look through this group's sections to see if current | |
660 | section is a member. */ | |
661 | while (--n_elt != 0) | |
662 | if ((++idx)->shdr == hdr) | |
663 | { | |
e0e8c97f | 664 | asection *s = NULL; |
dbb410c3 AM |
665 | |
666 | /* We are a member of this group. Go looking through | |
667 | other members to see if any others are linked via | |
668 | next_in_group. */ | |
669 | idx = (Elf_Internal_Group *) shdr->contents; | |
670 | n_elt = shdr->sh_size / 4; | |
671 | while (--n_elt != 0) | |
672 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 673 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
674 | break; |
675 | if (n_elt != 0) | |
676 | { | |
dbb410c3 AM |
677 | /* Snarf the group name from other member, and |
678 | insert current section in circular list. */ | |
945906ff AM |
679 | elf_group_name (newsect) = elf_group_name (s); |
680 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
681 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
682 | } |
683 | else | |
684 | { | |
dbb410c3 AM |
685 | const char *gname; |
686 | ||
b885599b AM |
687 | gname = group_signature (abfd, shdr); |
688 | if (gname == NULL) | |
b34976b6 | 689 | return FALSE; |
945906ff | 690 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
691 | |
692 | /* Start a circular list with one element. */ | |
945906ff | 693 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 694 | } |
b885599b | 695 | |
9dce4196 AM |
696 | /* If the group section has been created, point to the |
697 | new member. */ | |
dbb410c3 | 698 | if (shdr->bfd_section != NULL) |
945906ff | 699 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 700 | |
dbb410c3 AM |
701 | i = num_group - 1; |
702 | break; | |
703 | } | |
704 | } | |
705 | } | |
706 | ||
945906ff | 707 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 708 | { |
d003868e AM |
709 | (*_bfd_error_handler) (_("%B: no group info for section %A"), |
710 | abfd, newsect); | |
dbb410c3 | 711 | } |
b34976b6 | 712 | return TRUE; |
dbb410c3 AM |
713 | } |
714 | ||
3d7f7666 | 715 | bfd_boolean |
dd863624 | 716 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
717 | { |
718 | unsigned int i; | |
719 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
720 | bfd_boolean result = TRUE; | |
dd863624 L |
721 | asection *s; |
722 | ||
723 | /* Process SHF_LINK_ORDER. */ | |
724 | for (s = abfd->sections; s != NULL; s = s->next) | |
725 | { | |
726 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
727 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
728 | { | |
729 | unsigned int elfsec = this_hdr->sh_link; | |
730 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
731 | not set the sh_link or sh_info fields. Hence we could | |
732 | get the situation where elfsec is 0. */ | |
733 | if (elfsec == 0) | |
734 | { | |
4fbb74a6 | 735 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
736 | if (bed->link_order_error_handler) |
737 | bed->link_order_error_handler | |
738 | (_("%B: warning: sh_link not set for section `%A'"), | |
739 | abfd, s); | |
740 | } | |
741 | else | |
742 | { | |
91d6fa6a | 743 | asection *linksec = NULL; |
25bbc984 | 744 | |
4fbb74a6 AM |
745 | if (elfsec < elf_numsections (abfd)) |
746 | { | |
747 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 748 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 749 | } |
25bbc984 L |
750 | |
751 | /* PR 1991, 2008: | |
752 | Some strip/objcopy may leave an incorrect value in | |
753 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 754 | if (linksec == NULL) |
25bbc984 L |
755 | { |
756 | (*_bfd_error_handler) | |
757 | (_("%B: sh_link [%d] in section `%A' is incorrect"), | |
758 | s->owner, s, elfsec); | |
759 | result = FALSE; | |
760 | } | |
761 | ||
91d6fa6a | 762 | elf_linked_to_section (s) = linksec; |
dd863624 L |
763 | } |
764 | } | |
765 | } | |
3d7f7666 | 766 | |
dd863624 | 767 | /* Process section groups. */ |
3d7f7666 L |
768 | if (num_group == (unsigned) -1) |
769 | return result; | |
770 | ||
771 | for (i = 0; i < num_group; i++) | |
772 | { | |
773 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
774 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
775 | unsigned int n_elt = shdr->sh_size / 4; | |
776 | ||
777 | while (--n_elt != 0) | |
778 | if ((++idx)->shdr->bfd_section) | |
779 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
780 | else if (idx->shdr->sh_type == SHT_RELA | |
781 | || idx->shdr->sh_type == SHT_REL) | |
782 | /* We won't include relocation sections in section groups in | |
783 | output object files. We adjust the group section size here | |
784 | so that relocatable link will work correctly when | |
785 | relocation sections are in section group in input object | |
786 | files. */ | |
787 | shdr->bfd_section->size -= 4; | |
788 | else | |
789 | { | |
790 | /* There are some unknown sections in the group. */ | |
791 | (*_bfd_error_handler) | |
d003868e AM |
792 | (_("%B: unknown [%d] section `%s' in group [%s]"), |
793 | abfd, | |
3d7f7666 | 794 | (unsigned int) idx->shdr->sh_type, |
1b3a8575 AM |
795 | bfd_elf_string_from_elf_section (abfd, |
796 | (elf_elfheader (abfd) | |
797 | ->e_shstrndx), | |
798 | idx->shdr->sh_name), | |
3d7f7666 L |
799 | shdr->bfd_section->name); |
800 | result = FALSE; | |
801 | } | |
802 | } | |
803 | return result; | |
804 | } | |
805 | ||
72adc230 AM |
806 | bfd_boolean |
807 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
808 | { | |
809 | return elf_next_in_group (sec) != NULL; | |
810 | } | |
811 | ||
252b5132 RH |
812 | /* Make a BFD section from an ELF section. We store a pointer to the |
813 | BFD section in the bfd_section field of the header. */ | |
814 | ||
b34976b6 | 815 | bfd_boolean |
217aa764 AM |
816 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
817 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
818 | const char *name, |
819 | int shindex) | |
252b5132 RH |
820 | { |
821 | asection *newsect; | |
822 | flagword flags; | |
9c5bfbb7 | 823 | const struct elf_backend_data *bed; |
252b5132 RH |
824 | |
825 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 826 | return TRUE; |
252b5132 RH |
827 | |
828 | newsect = bfd_make_section_anyway (abfd, name); | |
829 | if (newsect == NULL) | |
b34976b6 | 830 | return FALSE; |
252b5132 | 831 | |
1829f4b2 AM |
832 | hdr->bfd_section = newsect; |
833 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 834 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 835 | |
2f89ff8d L |
836 | /* Always use the real type/flags. */ |
837 | elf_section_type (newsect) = hdr->sh_type; | |
838 | elf_section_flags (newsect) = hdr->sh_flags; | |
839 | ||
252b5132 RH |
840 | newsect->filepos = hdr->sh_offset; |
841 | ||
842 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
843 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
844 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 845 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 846 | return FALSE; |
252b5132 RH |
847 | |
848 | flags = SEC_NO_FLAGS; | |
849 | if (hdr->sh_type != SHT_NOBITS) | |
850 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 851 | if (hdr->sh_type == SHT_GROUP) |
b3096250 | 852 | flags |= SEC_GROUP | SEC_EXCLUDE; |
252b5132 RH |
853 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
854 | { | |
855 | flags |= SEC_ALLOC; | |
856 | if (hdr->sh_type != SHT_NOBITS) | |
857 | flags |= SEC_LOAD; | |
858 | } | |
859 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
860 | flags |= SEC_READONLY; | |
861 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
862 | flags |= SEC_CODE; | |
863 | else if ((flags & SEC_LOAD) != 0) | |
864 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
865 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
866 | { | |
867 | flags |= SEC_MERGE; | |
868 | newsect->entsize = hdr->sh_entsize; | |
869 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
870 | flags |= SEC_STRINGS; | |
871 | } | |
dbb410c3 AM |
872 | if (hdr->sh_flags & SHF_GROUP) |
873 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 874 | return FALSE; |
13ae64f3 JJ |
875 | if ((hdr->sh_flags & SHF_TLS) != 0) |
876 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
877 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
878 | flags |= SEC_EXCLUDE; | |
252b5132 | 879 | |
3d2b39cf | 880 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 881 | { |
3d2b39cf L |
882 | /* The debugging sections appear to be recognized only by name, |
883 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
884 | if (name [0] == '.') |
885 | { | |
f073ced3 AM |
886 | const char *p; |
887 | int n; | |
888 | if (name[1] == 'd') | |
889 | p = ".debug", n = 6; | |
890 | else if (name[1] == 'g' && name[2] == 'n') | |
891 | p = ".gnu.linkonce.wi.", n = 17; | |
892 | else if (name[1] == 'g' && name[2] == 'd') | |
893 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
894 | else if (name[1] == 'l') | |
895 | p = ".line", n = 5; | |
896 | else if (name[1] == 's') | |
897 | p = ".stab", n = 5; | |
898 | else if (name[1] == 'z') | |
899 | p = ".zdebug", n = 7; | |
900 | else | |
901 | p = NULL, n = 0; | |
902 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
903 | flags |= SEC_DEBUGGING; |
904 | } | |
905 | } | |
252b5132 RH |
906 | |
907 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
908 | only link a single copy of the section. This is used to support | |
909 | g++. g++ will emit each template expansion in its own section. | |
910 | The symbols will be defined as weak, so that multiple definitions | |
911 | are permitted. The GNU linker extension is to actually discard | |
912 | all but one of the sections. */ | |
0112cd26 | 913 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 914 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
915 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
916 | ||
fa152c49 JW |
917 | bed = get_elf_backend_data (abfd); |
918 | if (bed->elf_backend_section_flags) | |
919 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 920 | return FALSE; |
fa152c49 | 921 | |
252b5132 | 922 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 923 | return FALSE; |
252b5132 | 924 | |
718175fa JK |
925 | /* We do not parse the PT_NOTE segments as we are interested even in the |
926 | separate debug info files which may have the segments offsets corrupted. | |
927 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
928 | if (hdr->sh_type == SHT_NOTE) | |
929 | { | |
baea7ef1 | 930 | bfd_byte *contents; |
718175fa | 931 | |
baea7ef1 | 932 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
933 | return FALSE; |
934 | ||
baea7ef1 | 935 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, -1); |
718175fa JK |
936 | free (contents); |
937 | } | |
938 | ||
252b5132 RH |
939 | if ((flags & SEC_ALLOC) != 0) |
940 | { | |
941 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
942 | unsigned int i, nload; |
943 | ||
944 | /* Some ELF linkers produce binaries with all the program header | |
945 | p_paddr fields zero. If we have such a binary with more than | |
946 | one PT_LOAD header, then leave the section lma equal to vma | |
947 | so that we don't create sections with overlapping lma. */ | |
948 | phdr = elf_tdata (abfd)->phdr; | |
949 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
950 | if (phdr->p_paddr != 0) | |
951 | break; | |
952 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
953 | ++nload; | |
954 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
955 | return TRUE; | |
252b5132 | 956 | |
252b5132 RH |
957 | phdr = elf_tdata (abfd)->phdr; |
958 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
959 | { | |
86b2281f AM |
960 | if (((phdr->p_type == PT_LOAD |
961 | && (hdr->sh_flags & SHF_TLS) == 0) | |
962 | || phdr->p_type == PT_TLS) | |
9a83a553 | 963 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 964 | { |
88967714 AM |
965 | if ((flags & SEC_LOAD) == 0) |
966 | newsect->lma = (phdr->p_paddr | |
967 | + hdr->sh_addr - phdr->p_vaddr); | |
968 | else | |
969 | /* We used to use the same adjustment for SEC_LOAD | |
970 | sections, but that doesn't work if the segment | |
971 | is packed with code from multiple VMAs. | |
972 | Instead we calculate the section LMA based on | |
973 | the segment LMA. It is assumed that the | |
974 | segment will contain sections with contiguous | |
975 | LMAs, even if the VMAs are not. */ | |
976 | newsect->lma = (phdr->p_paddr | |
977 | + hdr->sh_offset - phdr->p_offset); | |
978 | ||
979 | /* With contiguous segments, we can't tell from file | |
980 | offsets whether a section with zero size should | |
981 | be placed at the end of one segment or the | |
982 | beginning of the next. Decide based on vaddr. */ | |
983 | if (hdr->sh_addr >= phdr->p_vaddr | |
984 | && (hdr->sh_addr + hdr->sh_size | |
985 | <= phdr->p_vaddr + phdr->p_memsz)) | |
986 | break; | |
252b5132 RH |
987 | } |
988 | } | |
989 | } | |
990 | ||
4a114e3e L |
991 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
992 | .zdebug_*, after the section flags is set. */ | |
993 | if ((flags & SEC_DEBUGGING) | |
994 | && ((name[1] == 'd' && name[6] == '_') | |
995 | || (name[1] == 'z' && name[7] == '_'))) | |
996 | { | |
997 | enum { nothing, compress, decompress } action = nothing; | |
4e011fb5 | 998 | char *new_name; |
4a114e3e L |
999 | |
1000 | if (bfd_is_section_compressed (abfd, newsect)) | |
1001 | { | |
1002 | /* Compressed section. Check if we should decompress. */ | |
1003 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1004 | action = decompress; | |
1005 | } | |
1006 | else | |
1007 | { | |
1008 | /* Normal section. Check if we should compress. */ | |
5a5ed5b0 | 1009 | if ((abfd->flags & BFD_COMPRESS) && newsect->size != 0) |
4a114e3e L |
1010 | action = compress; |
1011 | } | |
1012 | ||
4e011fb5 | 1013 | new_name = NULL; |
4a114e3e L |
1014 | switch (action) |
1015 | { | |
1016 | case nothing: | |
1017 | break; | |
1018 | case compress: | |
1019 | if (!bfd_init_section_compress_status (abfd, newsect)) | |
1020 | { | |
1021 | (*_bfd_error_handler) | |
bc823199 | 1022 | (_("%B: unable to initialize compress status for section %s"), |
4a114e3e L |
1023 | abfd, name); |
1024 | return FALSE; | |
1025 | } | |
4e011fb5 AM |
1026 | if (name[1] != 'z') |
1027 | { | |
1028 | unsigned int len = strlen (name); | |
1029 | ||
1030 | new_name = bfd_alloc (abfd, len + 2); | |
1031 | if (new_name == NULL) | |
1032 | return FALSE; | |
1033 | new_name[0] = '.'; | |
1034 | new_name[1] = 'z'; | |
1035 | memcpy (new_name + 2, name + 1, len); | |
1036 | } | |
4a114e3e L |
1037 | break; |
1038 | case decompress: | |
1039 | if (!bfd_init_section_decompress_status (abfd, newsect)) | |
1040 | { | |
1041 | (*_bfd_error_handler) | |
bc823199 | 1042 | (_("%B: unable to initialize decompress status for section %s"), |
4a114e3e L |
1043 | abfd, name); |
1044 | return FALSE; | |
1045 | } | |
4e011fb5 AM |
1046 | if (name[1] == 'z') |
1047 | { | |
1048 | unsigned int len = strlen (name); | |
1049 | ||
1050 | new_name = bfd_alloc (abfd, len); | |
1051 | if (new_name == NULL) | |
1052 | return FALSE; | |
1053 | new_name[0] = '.'; | |
1054 | memcpy (new_name + 1, name + 2, len - 1); | |
1055 | } | |
4a114e3e L |
1056 | break; |
1057 | } | |
4e011fb5 AM |
1058 | if (new_name != NULL) |
1059 | bfd_rename_section (abfd, newsect, new_name); | |
4a114e3e L |
1060 | } |
1061 | ||
b34976b6 | 1062 | return TRUE; |
252b5132 RH |
1063 | } |
1064 | ||
252b5132 RH |
1065 | const char *const bfd_elf_section_type_names[] = { |
1066 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
1067 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1068 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1069 | }; | |
1070 | ||
1049f94e | 1071 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1072 | output, and the reloc is against an external symbol, and nothing |
1073 | has given us any additional addend, the resulting reloc will also | |
1074 | be against the same symbol. In such a case, we don't want to | |
1075 | change anything about the way the reloc is handled, since it will | |
1076 | all be done at final link time. Rather than put special case code | |
1077 | into bfd_perform_relocation, all the reloc types use this howto | |
1078 | function. It just short circuits the reloc if producing | |
1049f94e | 1079 | relocatable output against an external symbol. */ |
252b5132 | 1080 | |
252b5132 | 1081 | bfd_reloc_status_type |
217aa764 AM |
1082 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1083 | arelent *reloc_entry, | |
1084 | asymbol *symbol, | |
1085 | void *data ATTRIBUTE_UNUSED, | |
1086 | asection *input_section, | |
1087 | bfd *output_bfd, | |
1088 | char **error_message ATTRIBUTE_UNUSED) | |
1089 | { | |
1090 | if (output_bfd != NULL | |
252b5132 RH |
1091 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1092 | && (! reloc_entry->howto->partial_inplace | |
1093 | || reloc_entry->addend == 0)) | |
1094 | { | |
1095 | reloc_entry->address += input_section->output_offset; | |
1096 | return bfd_reloc_ok; | |
1097 | } | |
1098 | ||
1099 | return bfd_reloc_continue; | |
1100 | } | |
1101 | \f | |
0ac4564e L |
1102 | /* Copy the program header and other data from one object module to |
1103 | another. */ | |
252b5132 | 1104 | |
b34976b6 | 1105 | bfd_boolean |
217aa764 | 1106 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 L |
1107 | { |
1108 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1109 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1110 | return TRUE; |
2d502050 L |
1111 | |
1112 | BFD_ASSERT (!elf_flags_init (obfd) | |
1113 | || (elf_elfheader (obfd)->e_flags | |
1114 | == elf_elfheader (ibfd)->e_flags)); | |
1115 | ||
0ac4564e | 1116 | elf_gp (obfd) = elf_gp (ibfd); |
2d502050 | 1117 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
b34976b6 | 1118 | elf_flags_init (obfd) = TRUE; |
104d59d1 JM |
1119 | |
1120 | /* Copy object attributes. */ | |
1121 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
b34976b6 | 1122 | return TRUE; |
2d502050 L |
1123 | } |
1124 | ||
cedc298e L |
1125 | static const char * |
1126 | get_segment_type (unsigned int p_type) | |
1127 | { | |
1128 | const char *pt; | |
1129 | switch (p_type) | |
1130 | { | |
1131 | case PT_NULL: pt = "NULL"; break; | |
1132 | case PT_LOAD: pt = "LOAD"; break; | |
1133 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1134 | case PT_INTERP: pt = "INTERP"; break; | |
1135 | case PT_NOTE: pt = "NOTE"; break; | |
1136 | case PT_SHLIB: pt = "SHLIB"; break; | |
1137 | case PT_PHDR: pt = "PHDR"; break; | |
1138 | case PT_TLS: pt = "TLS"; break; | |
1139 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1140 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1141 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1142 | default: pt = NULL; break; | |
1143 | } | |
1144 | return pt; | |
1145 | } | |
1146 | ||
f0b79d91 L |
1147 | /* Print out the program headers. */ |
1148 | ||
b34976b6 | 1149 | bfd_boolean |
217aa764 | 1150 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1151 | { |
a50b1753 | 1152 | FILE *f = (FILE *) farg; |
252b5132 RH |
1153 | Elf_Internal_Phdr *p; |
1154 | asection *s; | |
1155 | bfd_byte *dynbuf = NULL; | |
1156 | ||
1157 | p = elf_tdata (abfd)->phdr; | |
1158 | if (p != NULL) | |
1159 | { | |
1160 | unsigned int i, c; | |
1161 | ||
1162 | fprintf (f, _("\nProgram Header:\n")); | |
1163 | c = elf_elfheader (abfd)->e_phnum; | |
1164 | for (i = 0; i < c; i++, p++) | |
1165 | { | |
cedc298e | 1166 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1167 | char buf[20]; |
1168 | ||
cedc298e | 1169 | if (pt == NULL) |
252b5132 | 1170 | { |
cedc298e L |
1171 | sprintf (buf, "0x%lx", p->p_type); |
1172 | pt = buf; | |
252b5132 | 1173 | } |
dc810e39 | 1174 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1175 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1176 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1177 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1178 | fprintf (f, " paddr 0x"); |
60b89a18 | 1179 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1180 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1181 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1182 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1183 | fprintf (f, " memsz 0x"); |
60b89a18 | 1184 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1185 | fprintf (f, " flags %c%c%c", |
1186 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1187 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1188 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1189 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1190 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1191 | fprintf (f, "\n"); |
1192 | } | |
1193 | } | |
1194 | ||
1195 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1196 | if (s != NULL) | |
1197 | { | |
cb33740c | 1198 | unsigned int elfsec; |
dc810e39 | 1199 | unsigned long shlink; |
252b5132 RH |
1200 | bfd_byte *extdyn, *extdynend; |
1201 | size_t extdynsize; | |
217aa764 | 1202 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1203 | |
1204 | fprintf (f, _("\nDynamic Section:\n")); | |
1205 | ||
eea6121a | 1206 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1207 | goto error_return; |
1208 | ||
1209 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1210 | if (elfsec == SHN_BAD) |
252b5132 | 1211 | goto error_return; |
dc810e39 | 1212 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1213 | |
1214 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1215 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1216 | ||
1217 | extdyn = dynbuf; | |
eea6121a | 1218 | extdynend = extdyn + s->size; |
252b5132 RH |
1219 | for (; extdyn < extdynend; extdyn += extdynsize) |
1220 | { | |
1221 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1222 | const char *name = ""; |
252b5132 | 1223 | char ab[20]; |
b34976b6 | 1224 | bfd_boolean stringp; |
ad9563d6 | 1225 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1226 | |
217aa764 | 1227 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1228 | |
1229 | if (dyn.d_tag == DT_NULL) | |
1230 | break; | |
1231 | ||
b34976b6 | 1232 | stringp = FALSE; |
252b5132 RH |
1233 | switch (dyn.d_tag) |
1234 | { | |
1235 | default: | |
ad9563d6 CM |
1236 | if (bed->elf_backend_get_target_dtag) |
1237 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1238 | ||
1239 | if (!strcmp (name, "")) | |
1240 | { | |
1241 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
1242 | name = ab; | |
1243 | } | |
252b5132 RH |
1244 | break; |
1245 | ||
b34976b6 | 1246 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1247 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1248 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1249 | case DT_HASH: name = "HASH"; break; | |
1250 | case DT_STRTAB: name = "STRTAB"; break; | |
1251 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1252 | case DT_RELA: name = "RELA"; break; | |
1253 | case DT_RELASZ: name = "RELASZ"; break; | |
1254 | case DT_RELAENT: name = "RELAENT"; break; | |
1255 | case DT_STRSZ: name = "STRSZ"; break; | |
1256 | case DT_SYMENT: name = "SYMENT"; break; | |
1257 | case DT_INIT: name = "INIT"; break; | |
1258 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1259 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1260 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1261 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1262 | case DT_REL: name = "REL"; break; | |
1263 | case DT_RELSZ: name = "RELSZ"; break; | |
1264 | case DT_RELENT: name = "RELENT"; break; | |
1265 | case DT_PLTREL: name = "PLTREL"; break; | |
1266 | case DT_DEBUG: name = "DEBUG"; break; | |
1267 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1268 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1269 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1270 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1271 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1272 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1273 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1274 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1275 | case DT_FLAGS: name = "FLAGS"; break; |
1276 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1277 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1278 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1279 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1280 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1281 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1282 | case DT_FEATURE: name = "FEATURE"; break; | |
1283 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1284 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1285 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1286 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1287 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1288 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1289 | case DT_PLTPAD: name = "PLTPAD"; break; |
1290 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1291 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1292 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1293 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1294 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1295 | case DT_VERSYM: name = "VERSYM"; break; |
1296 | case DT_VERDEF: name = "VERDEF"; break; | |
1297 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1298 | case DT_VERNEED: name = "VERNEED"; break; | |
1299 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1300 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1301 | case DT_USED: name = "USED"; break; |
b34976b6 | 1302 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1303 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1304 | } |
1305 | ||
ad9563d6 | 1306 | fprintf (f, " %-20s ", name); |
252b5132 | 1307 | if (! stringp) |
a1f3c56e AN |
1308 | { |
1309 | fprintf (f, "0x"); | |
1310 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1311 | } | |
252b5132 RH |
1312 | else |
1313 | { | |
1314 | const char *string; | |
dc810e39 | 1315 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1316 | |
dc810e39 | 1317 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1318 | if (string == NULL) |
1319 | goto error_return; | |
1320 | fprintf (f, "%s", string); | |
1321 | } | |
1322 | fprintf (f, "\n"); | |
1323 | } | |
1324 | ||
1325 | free (dynbuf); | |
1326 | dynbuf = NULL; | |
1327 | } | |
1328 | ||
1329 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1330 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1331 | { | |
fc0e6df6 | 1332 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1333 | return FALSE; |
252b5132 RH |
1334 | } |
1335 | ||
1336 | if (elf_dynverdef (abfd) != 0) | |
1337 | { | |
1338 | Elf_Internal_Verdef *t; | |
1339 | ||
1340 | fprintf (f, _("\nVersion definitions:\n")); | |
1341 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1342 | { | |
1343 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1344 | t->vd_flags, t->vd_hash, |
1345 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1346 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1347 | { |
1348 | Elf_Internal_Verdaux *a; | |
1349 | ||
1350 | fprintf (f, "\t"); | |
1351 | for (a = t->vd_auxptr->vda_nextptr; | |
1352 | a != NULL; | |
1353 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1354 | fprintf (f, "%s ", |
1355 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1356 | fprintf (f, "\n"); |
1357 | } | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | if (elf_dynverref (abfd) != 0) | |
1362 | { | |
1363 | Elf_Internal_Verneed *t; | |
1364 | ||
1365 | fprintf (f, _("\nVersion References:\n")); | |
1366 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1367 | { | |
1368 | Elf_Internal_Vernaux *a; | |
1369 | ||
d0fb9a8d JJ |
1370 | fprintf (f, _(" required from %s:\n"), |
1371 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1372 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1373 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1374 | a->vna_flags, a->vna_other, |
1375 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1376 | } |
1377 | } | |
1378 | ||
b34976b6 | 1379 | return TRUE; |
252b5132 RH |
1380 | |
1381 | error_return: | |
1382 | if (dynbuf != NULL) | |
1383 | free (dynbuf); | |
b34976b6 | 1384 | return FALSE; |
252b5132 RH |
1385 | } |
1386 | ||
1387 | /* Display ELF-specific fields of a symbol. */ | |
1388 | ||
1389 | void | |
217aa764 AM |
1390 | bfd_elf_print_symbol (bfd *abfd, |
1391 | void *filep, | |
1392 | asymbol *symbol, | |
1393 | bfd_print_symbol_type how) | |
252b5132 | 1394 | { |
a50b1753 | 1395 | FILE *file = (FILE *) filep; |
252b5132 RH |
1396 | switch (how) |
1397 | { | |
1398 | case bfd_print_symbol_name: | |
1399 | fprintf (file, "%s", symbol->name); | |
1400 | break; | |
1401 | case bfd_print_symbol_more: | |
1402 | fprintf (file, "elf "); | |
60b89a18 | 1403 | bfd_fprintf_vma (abfd, file, symbol->value); |
0af1713e | 1404 | fprintf (file, " %lx", (unsigned long) symbol->flags); |
252b5132 RH |
1405 | break; |
1406 | case bfd_print_symbol_all: | |
1407 | { | |
4e8a9624 AM |
1408 | const char *section_name; |
1409 | const char *name = NULL; | |
9c5bfbb7 | 1410 | const struct elf_backend_data *bed; |
7a13edea | 1411 | unsigned char st_other; |
dbb410c3 | 1412 | bfd_vma val; |
c044fabd | 1413 | |
252b5132 | 1414 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1415 | |
1416 | bed = get_elf_backend_data (abfd); | |
1417 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1418 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1419 | |
1420 | if (name == NULL) | |
1421 | { | |
7ee38065 | 1422 | name = symbol->name; |
217aa764 | 1423 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1424 | } |
1425 | ||
252b5132 RH |
1426 | fprintf (file, " %s\t", section_name); |
1427 | /* Print the "other" value for a symbol. For common symbols, | |
1428 | we've already printed the size; now print the alignment. | |
1429 | For other symbols, we have no specified alignment, and | |
1430 | we've printed the address; now print the size. */ | |
dcf6c779 | 1431 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1432 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1433 | else | |
1434 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1435 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1436 | |
1437 | /* If we have version information, print it. */ | |
1438 | if (elf_tdata (abfd)->dynversym_section != 0 | |
1439 | && (elf_tdata (abfd)->dynverdef_section != 0 | |
1440 | || elf_tdata (abfd)->dynverref_section != 0)) | |
1441 | { | |
1442 | unsigned int vernum; | |
1443 | const char *version_string; | |
1444 | ||
1445 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION; | |
1446 | ||
1447 | if (vernum == 0) | |
1448 | version_string = ""; | |
1449 | else if (vernum == 1) | |
1450 | version_string = "Base"; | |
1451 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1452 | version_string = | |
1453 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1454 | else | |
1455 | { | |
1456 | Elf_Internal_Verneed *t; | |
1457 | ||
1458 | version_string = ""; | |
1459 | for (t = elf_tdata (abfd)->verref; | |
1460 | t != NULL; | |
1461 | t = t->vn_nextref) | |
1462 | { | |
1463 | Elf_Internal_Vernaux *a; | |
1464 | ||
1465 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1466 | { | |
1467 | if (a->vna_other == vernum) | |
1468 | { | |
1469 | version_string = a->vna_nodename; | |
1470 | break; | |
1471 | } | |
1472 | } | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0) | |
1477 | fprintf (file, " %-11s", version_string); | |
1478 | else | |
1479 | { | |
1480 | int i; | |
1481 | ||
1482 | fprintf (file, " (%s)", version_string); | |
1483 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1484 | putc (' ', file); | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1489 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1490 | |
7a13edea NC |
1491 | switch (st_other) |
1492 | { | |
1493 | case 0: break; | |
1494 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1495 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1496 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1497 | default: | |
1498 | /* Some other non-defined flags are also present, so print | |
1499 | everything hex. */ | |
1500 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1501 | } | |
252b5132 | 1502 | |
587ff49e | 1503 | fprintf (file, " %s", name); |
252b5132 RH |
1504 | } |
1505 | break; | |
1506 | } | |
1507 | } | |
252b5132 | 1508 | |
252b5132 RH |
1509 | /* Allocate an ELF string table--force the first byte to be zero. */ |
1510 | ||
1511 | struct bfd_strtab_hash * | |
217aa764 | 1512 | _bfd_elf_stringtab_init (void) |
252b5132 RH |
1513 | { |
1514 | struct bfd_strtab_hash *ret; | |
1515 | ||
1516 | ret = _bfd_stringtab_init (); | |
1517 | if (ret != NULL) | |
1518 | { | |
1519 | bfd_size_type loc; | |
1520 | ||
b34976b6 | 1521 | loc = _bfd_stringtab_add (ret, "", TRUE, FALSE); |
252b5132 RH |
1522 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1); |
1523 | if (loc == (bfd_size_type) -1) | |
1524 | { | |
1525 | _bfd_stringtab_free (ret); | |
1526 | ret = NULL; | |
1527 | } | |
1528 | } | |
1529 | return ret; | |
1530 | } | |
1531 | \f | |
1532 | /* ELF .o/exec file reading */ | |
1533 | ||
c044fabd | 1534 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1535 | |
b34976b6 | 1536 | bfd_boolean |
217aa764 | 1537 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 1538 | { |
4fbb74a6 AM |
1539 | Elf_Internal_Shdr *hdr; |
1540 | Elf_Internal_Ehdr *ehdr; | |
1541 | const struct elf_backend_data *bed; | |
90937f86 | 1542 | const char *name; |
252b5132 | 1543 | |
4fbb74a6 AM |
1544 | if (shindex >= elf_numsections (abfd)) |
1545 | return FALSE; | |
1546 | ||
1547 | hdr = elf_elfsections (abfd)[shindex]; | |
1548 | ehdr = elf_elfheader (abfd); | |
1549 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 1550 | hdr->sh_name); |
933d961a JJ |
1551 | if (name == NULL) |
1552 | return FALSE; | |
252b5132 | 1553 | |
4fbb74a6 | 1554 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
1555 | switch (hdr->sh_type) |
1556 | { | |
1557 | case SHT_NULL: | |
1558 | /* Inactive section. Throw it away. */ | |
b34976b6 | 1559 | return TRUE; |
252b5132 RH |
1560 | |
1561 | case SHT_PROGBITS: /* Normal section with contents. */ | |
252b5132 RH |
1562 | case SHT_NOBITS: /* .bss section. */ |
1563 | case SHT_HASH: /* .hash section. */ | |
1564 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1565 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1566 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1567 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 1568 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 1569 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
6dc132d9 | 1570 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 | 1571 | |
797fc050 | 1572 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 1573 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 1574 | return FALSE; |
cfcac11d NC |
1575 | if (hdr->sh_link > elf_numsections (abfd)) |
1576 | { | |
caa83f8b | 1577 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
1578 | field set to SHN_BEFORE or SHN_AFTER. */ |
1579 | switch (bfd_get_arch (abfd)) | |
1580 | { | |
caa83f8b | 1581 | case bfd_arch_i386: |
cfcac11d NC |
1582 | case bfd_arch_sparc: |
1583 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
1584 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
1585 | break; | |
1586 | /* Otherwise fall through. */ | |
1587 | default: | |
1588 | return FALSE; | |
1589 | } | |
1590 | } | |
1591 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
8e0ed13f | 1592 | return FALSE; |
cfcac11d | 1593 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
1594 | { |
1595 | Elf_Internal_Shdr *dynsymhdr; | |
1596 | ||
1597 | /* The shared libraries distributed with hpux11 have a bogus | |
1598 | sh_link field for the ".dynamic" section. Find the | |
1599 | string table for the ".dynsym" section instead. */ | |
1600 | if (elf_dynsymtab (abfd) != 0) | |
1601 | { | |
1602 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
1603 | hdr->sh_link = dynsymhdr->sh_link; | |
1604 | } | |
1605 | else | |
1606 | { | |
1607 | unsigned int i, num_sec; | |
1608 | ||
1609 | num_sec = elf_numsections (abfd); | |
1610 | for (i = 1; i < num_sec; i++) | |
1611 | { | |
1612 | dynsymhdr = elf_elfsections (abfd)[i]; | |
1613 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
1614 | { | |
1615 | hdr->sh_link = dynsymhdr->sh_link; | |
1616 | break; | |
1617 | } | |
1618 | } | |
1619 | } | |
1620 | } | |
1621 | break; | |
1622 | ||
252b5132 RH |
1623 | case SHT_SYMTAB: /* A symbol table */ |
1624 | if (elf_onesymtab (abfd) == shindex) | |
b34976b6 | 1625 | return TRUE; |
252b5132 | 1626 | |
a50b2160 JJ |
1627 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
1628 | return FALSE; | |
3337c1e5 | 1629 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
1630 | { |
1631 | if (hdr->sh_size != 0) | |
1632 | return FALSE; | |
1633 | /* Some assemblers erroneously set sh_info to one with a | |
1634 | zero sh_size. ld sees this as a global symbol count | |
1635 | of (unsigned) -1. Fix it here. */ | |
1636 | hdr->sh_info = 0; | |
1637 | return TRUE; | |
1638 | } | |
252b5132 RH |
1639 | BFD_ASSERT (elf_onesymtab (abfd) == 0); |
1640 | elf_onesymtab (abfd) = shindex; | |
1641 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1642 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1643 | abfd->flags |= HAS_SYMS; | |
1644 | ||
1645 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
1646 | SHF_ALLOC is set, and this is a shared object, then we also |
1647 | treat this section as a BFD section. We can not base the | |
1648 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1649 | set in a relocatable object file, which would confuse the | |
1650 | linker. */ | |
252b5132 RH |
1651 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
1652 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
1653 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1654 | shindex)) | |
b34976b6 | 1655 | return FALSE; |
252b5132 | 1656 | |
1b3a8575 AM |
1657 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
1658 | can't read symbols without that section loaded as well. It | |
1659 | is most likely specified by the next section header. */ | |
1660 | if (elf_elfsections (abfd)[elf_symtab_shndx (abfd)]->sh_link != shindex) | |
1661 | { | |
1662 | unsigned int i, num_sec; | |
1663 | ||
1664 | num_sec = elf_numsections (abfd); | |
1665 | for (i = shindex + 1; i < num_sec; i++) | |
1666 | { | |
1667 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1668 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1669 | && hdr2->sh_link == shindex) | |
1670 | break; | |
1671 | } | |
1672 | if (i == num_sec) | |
1673 | for (i = 1; i < shindex; i++) | |
1674 | { | |
1675 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1676 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
1677 | && hdr2->sh_link == shindex) | |
1678 | break; | |
1679 | } | |
1680 | if (i != shindex) | |
1681 | return bfd_section_from_shdr (abfd, i); | |
1682 | } | |
b34976b6 | 1683 | return TRUE; |
252b5132 RH |
1684 | |
1685 | case SHT_DYNSYM: /* A dynamic symbol table */ | |
1686 | if (elf_dynsymtab (abfd) == shindex) | |
b34976b6 | 1687 | return TRUE; |
252b5132 | 1688 | |
a50b2160 JJ |
1689 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
1690 | return FALSE; | |
eee3b786 AM |
1691 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
1692 | { | |
1693 | if (hdr->sh_size != 0) | |
1694 | return FALSE; | |
1695 | /* Some linkers erroneously set sh_info to one with a | |
1696 | zero sh_size. ld sees this as a global symbol count | |
1697 | of (unsigned) -1. Fix it here. */ | |
1698 | hdr->sh_info = 0; | |
1699 | return TRUE; | |
1700 | } | |
252b5132 RH |
1701 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); |
1702 | elf_dynsymtab (abfd) = shindex; | |
1703 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1704 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1705 | abfd->flags |= HAS_SYMS; | |
1706 | ||
1707 | /* Besides being a symbol table, we also treat this as a regular | |
1708 | section, so that objcopy can handle it. */ | |
6dc132d9 | 1709 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 | 1710 | |
9ad5cbcf AM |
1711 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */ |
1712 | if (elf_symtab_shndx (abfd) == shindex) | |
b34976b6 | 1713 | return TRUE; |
9ad5cbcf | 1714 | |
1b3a8575 | 1715 | BFD_ASSERT (elf_symtab_shndx (abfd) == 0); |
9ad5cbcf AM |
1716 | elf_symtab_shndx (abfd) = shindex; |
1717 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1718 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
b34976b6 | 1719 | return TRUE; |
9ad5cbcf | 1720 | |
252b5132 RH |
1721 | case SHT_STRTAB: /* A string table */ |
1722 | if (hdr->bfd_section != NULL) | |
b34976b6 | 1723 | return TRUE; |
252b5132 RH |
1724 | if (ehdr->e_shstrndx == shindex) |
1725 | { | |
1726 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1727 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
b34976b6 | 1728 | return TRUE; |
252b5132 | 1729 | } |
1b3a8575 AM |
1730 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
1731 | { | |
1732 | symtab_strtab: | |
1733 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1734 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
1735 | return TRUE; | |
1736 | } | |
1737 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) | |
1738 | { | |
1739 | dynsymtab_strtab: | |
1740 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1741 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
1742 | elf_elfsections (abfd)[shindex] = hdr; | |
1743 | /* We also treat this as a regular section, so that objcopy | |
1744 | can handle it. */ | |
6dc132d9 L |
1745 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1746 | shindex); | |
1b3a8575 | 1747 | } |
252b5132 | 1748 | |
1b3a8575 AM |
1749 | /* If the string table isn't one of the above, then treat it as a |
1750 | regular section. We need to scan all the headers to be sure, | |
1751 | just in case this strtab section appeared before the above. */ | |
1752 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
1753 | { | |
1754 | unsigned int i, num_sec; | |
252b5132 | 1755 | |
1b3a8575 AM |
1756 | num_sec = elf_numsections (abfd); |
1757 | for (i = 1; i < num_sec; i++) | |
1758 | { | |
1759 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1760 | if (hdr2->sh_link == shindex) | |
1761 | { | |
933d961a JJ |
1762 | /* Prevent endless recursion on broken objects. */ |
1763 | if (i == shindex) | |
1764 | return FALSE; | |
1b3a8575 AM |
1765 | if (! bfd_section_from_shdr (abfd, i)) |
1766 | return FALSE; | |
1767 | if (elf_onesymtab (abfd) == i) | |
1768 | goto symtab_strtab; | |
1769 | if (elf_dynsymtab (abfd) == i) | |
1770 | goto dynsymtab_strtab; | |
1771 | } | |
1772 | } | |
1773 | } | |
6dc132d9 | 1774 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1775 | |
1776 | case SHT_REL: | |
1777 | case SHT_RELA: | |
1778 | /* *These* do a lot of work -- but build no sections! */ | |
1779 | { | |
1780 | asection *target_sect; | |
d4730f92 | 1781 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 1782 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 BS |
1783 | struct bfd_elf_section_data *esdt; |
1784 | bfd_size_type amt; | |
252b5132 | 1785 | |
aa2ca951 JJ |
1786 | if (hdr->sh_entsize |
1787 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 JJ |
1788 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
1789 | return FALSE; | |
1790 | ||
03ae5f59 | 1791 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 1792 | if (hdr->sh_link >= num_sec) |
03ae5f59 ILT |
1793 | { |
1794 | ((*_bfd_error_handler) | |
d003868e AM |
1795 | (_("%B: invalid link %lu for reloc section %s (index %u)"), |
1796 | abfd, hdr->sh_link, name, shindex)); | |
6dc132d9 L |
1797 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1798 | shindex); | |
03ae5f59 ILT |
1799 | } |
1800 | ||
252b5132 RH |
1801 | /* For some incomprehensible reason Oracle distributes |
1802 | libraries for Solaris in which some of the objects have | |
1803 | bogus sh_link fields. It would be nice if we could just | |
1804 | reject them, but, unfortunately, some people need to use | |
1805 | them. We scan through the section headers; if we find only | |
1806 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
1807 | to it. I hope this doesn't break anything. |
1808 | ||
1809 | Don't do it on executable nor shared library. */ | |
1810 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
1811 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
1812 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
1813 | { | |
9ad5cbcf | 1814 | unsigned int scan; |
252b5132 RH |
1815 | int found; |
1816 | ||
1817 | found = 0; | |
9ad5cbcf | 1818 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
1819 | { |
1820 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
1821 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
1822 | { | |
1823 | if (found != 0) | |
1824 | { | |
1825 | found = 0; | |
1826 | break; | |
1827 | } | |
1828 | found = scan; | |
1829 | } | |
1830 | } | |
1831 | if (found != 0) | |
1832 | hdr->sh_link = found; | |
1833 | } | |
1834 | ||
1835 | /* Get the symbol table. */ | |
1b3a8575 AM |
1836 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
1837 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 1838 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
b34976b6 | 1839 | return FALSE; |
252b5132 RH |
1840 | |
1841 | /* If this reloc section does not use the main symbol table we | |
1842 | don't treat it as a reloc section. BFD can't adequately | |
1843 | represent such a section, so at least for now, we don't | |
c044fabd | 1844 | try. We just present it as a normal section. We also |
60bcf0fa | 1845 | can't use it as a reloc section if it points to the null |
83b89087 L |
1846 | section, an invalid section, another reloc section, or its |
1847 | sh_link points to the null section. */ | |
185ef66d | 1848 | if (hdr->sh_link != elf_onesymtab (abfd) |
83b89087 | 1849 | || hdr->sh_link == SHN_UNDEF |
185ef66d | 1850 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
1851 | || hdr->sh_info >= num_sec |
1852 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
1853 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
6dc132d9 L |
1854 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
1855 | shindex); | |
252b5132 RH |
1856 | |
1857 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
b34976b6 | 1858 | return FALSE; |
252b5132 RH |
1859 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
1860 | if (target_sect == NULL) | |
b34976b6 | 1861 | return FALSE; |
252b5132 | 1862 | |
d4730f92 BS |
1863 | esdt = elf_section_data (target_sect); |
1864 | if (hdr->sh_type == SHT_RELA) | |
1865 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 1866 | else |
d4730f92 BS |
1867 | p_hdr = &esdt->rel.hdr; |
1868 | ||
1869 | BFD_ASSERT (*p_hdr == NULL); | |
1870 | amt = sizeof (*hdr2); | |
1871 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
1872 | if (hdr2 == NULL) | |
1873 | return FALSE; | |
252b5132 | 1874 | *hdr2 = *hdr; |
d4730f92 | 1875 | *p_hdr = hdr2; |
252b5132 | 1876 | elf_elfsections (abfd)[shindex] = hdr2; |
d9bc7a44 | 1877 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
1878 | target_sect->flags |= SEC_RELOC; |
1879 | target_sect->relocation = NULL; | |
1880 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
1881 | /* In the section to which the relocations apply, mark whether |
1882 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 1883 | if (hdr->sh_size != 0) |
d4730f92 BS |
1884 | { |
1885 | if (hdr->sh_type == SHT_RELA) | |
1886 | target_sect->use_rela_p = 1; | |
1887 | } | |
252b5132 | 1888 | abfd->flags |= HAS_RELOC; |
b34976b6 | 1889 | return TRUE; |
252b5132 | 1890 | } |
252b5132 RH |
1891 | |
1892 | case SHT_GNU_verdef: | |
1893 | elf_dynverdef (abfd) = shindex; | |
1894 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
6dc132d9 | 1895 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1896 | |
1897 | case SHT_GNU_versym: | |
a50b2160 JJ |
1898 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
1899 | return FALSE; | |
252b5132 RH |
1900 | elf_dynversym (abfd) = shindex; |
1901 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
6dc132d9 | 1902 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1903 | |
1904 | case SHT_GNU_verneed: | |
1905 | elf_dynverref (abfd) = shindex; | |
1906 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
6dc132d9 | 1907 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
252b5132 RH |
1908 | |
1909 | case SHT_SHLIB: | |
b34976b6 | 1910 | return TRUE; |
252b5132 | 1911 | |
dbb410c3 | 1912 | case SHT_GROUP: |
44534af3 | 1913 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
a50b2160 | 1914 | return FALSE; |
6dc132d9 | 1915 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 1916 | return FALSE; |
dbb410c3 AM |
1917 | if (hdr->contents != NULL) |
1918 | { | |
1919 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
1783205a | 1920 | unsigned int n_elt = hdr->sh_size / GRP_ENTRY_SIZE; |
dbb410c3 AM |
1921 | asection *s; |
1922 | ||
b885599b AM |
1923 | if (idx->flags & GRP_COMDAT) |
1924 | hdr->bfd_section->flags | |
1925 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
1926 | ||
45c5e9ed L |
1927 | /* We try to keep the same section order as it comes in. */ |
1928 | idx += n_elt; | |
dbb410c3 | 1929 | while (--n_elt != 0) |
1783205a NC |
1930 | { |
1931 | --idx; | |
1932 | ||
1933 | if (idx->shdr != NULL | |
1934 | && (s = idx->shdr->bfd_section) != NULL | |
1935 | && elf_next_in_group (s) != NULL) | |
1936 | { | |
1937 | elf_next_in_group (hdr->bfd_section) = s; | |
1938 | break; | |
1939 | } | |
1940 | } | |
dbb410c3 AM |
1941 | } |
1942 | break; | |
1943 | ||
252b5132 | 1944 | default: |
104d59d1 JM |
1945 | /* Possibly an attributes section. */ |
1946 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
1947 | || hdr->sh_type == bed->obj_attrs_section_type) | |
1948 | { | |
1949 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
1950 | return FALSE; | |
1951 | _bfd_elf_parse_attributes (abfd, hdr); | |
1952 | return TRUE; | |
1953 | } | |
1954 | ||
252b5132 | 1955 | /* Check for any processor-specific section types. */ |
3eb70a79 L |
1956 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
1957 | return TRUE; | |
1958 | ||
1959 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
1960 | { | |
1961 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
1962 | /* FIXME: How to properly handle allocated section reserved | |
1963 | for applications? */ | |
1964 | (*_bfd_error_handler) | |
1965 | (_("%B: don't know how to handle allocated, application " | |
1966 | "specific section `%s' [0x%8x]"), | |
1967 | abfd, name, hdr->sh_type); | |
1968 | else | |
1969 | /* Allow sections reserved for applications. */ | |
1970 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
1971 | shindex); | |
1972 | } | |
1973 | else if (hdr->sh_type >= SHT_LOPROC | |
1974 | && hdr->sh_type <= SHT_HIPROC) | |
1975 | /* FIXME: We should handle this section. */ | |
1976 | (*_bfd_error_handler) | |
1977 | (_("%B: don't know how to handle processor specific section " | |
1978 | "`%s' [0x%8x]"), | |
1979 | abfd, name, hdr->sh_type); | |
1980 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) | |
ff15b240 NC |
1981 | { |
1982 | /* Unrecognised OS-specific sections. */ | |
1983 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
1984 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 1985 | required to correctly process the section and the file should |
ff15b240 NC |
1986 | be rejected with an error message. */ |
1987 | (*_bfd_error_handler) | |
1988 | (_("%B: don't know how to handle OS specific section " | |
1989 | "`%s' [0x%8x]"), | |
1990 | abfd, name, hdr->sh_type); | |
1991 | else | |
1992 | /* Otherwise it should be processed. */ | |
1993 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
1994 | } | |
3eb70a79 L |
1995 | else |
1996 | /* FIXME: We should handle this section. */ | |
1997 | (*_bfd_error_handler) | |
1998 | (_("%B: don't know how to handle section `%s' [0x%8x]"), | |
1999 | abfd, name, hdr->sh_type); | |
2000 | ||
2001 | return FALSE; | |
252b5132 RH |
2002 | } |
2003 | ||
b34976b6 | 2004 | return TRUE; |
252b5132 RH |
2005 | } |
2006 | ||
87d72d41 | 2007 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2008 | |
87d72d41 AM |
2009 | Elf_Internal_Sym * |
2010 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2011 | bfd *abfd, | |
2012 | unsigned long r_symndx) | |
ec338859 | 2013 | { |
ec338859 AM |
2014 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2015 | ||
a5d1b3b5 AM |
2016 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2017 | { | |
2018 | Elf_Internal_Shdr *symtab_hdr; | |
2019 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2020 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2021 | |
a5d1b3b5 AM |
2022 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2023 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2024 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2025 | return NULL; |
9ad5cbcf | 2026 | |
a5d1b3b5 AM |
2027 | if (cache->abfd != abfd) |
2028 | { | |
2029 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2030 | cache->abfd = abfd; | |
2031 | } | |
2032 | cache->indx[ent] = r_symndx; | |
ec338859 | 2033 | } |
a5d1b3b5 | 2034 | |
87d72d41 | 2035 | return &cache->sym[ent]; |
ec338859 AM |
2036 | } |
2037 | ||
252b5132 RH |
2038 | /* Given an ELF section number, retrieve the corresponding BFD |
2039 | section. */ | |
2040 | ||
2041 | asection * | |
91d6fa6a | 2042 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2043 | { |
91d6fa6a | 2044 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2045 | return NULL; |
91d6fa6a | 2046 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2047 | } |
2048 | ||
b35d266b | 2049 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2050 | { |
0112cd26 NC |
2051 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2052 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2053 | }; |
2054 | ||
b35d266b | 2055 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2056 | { |
0112cd26 NC |
2057 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
2058 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2059 | }; |
2060 | ||
b35d266b | 2061 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2062 | { |
0112cd26 NC |
2063 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2064 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2065 | /* There are more DWARF sections than these, but they needn't be added here |
2066 | unless you have to cope with broken compilers that don't emit section | |
2067 | attributes or you want to help the user writing assembler. */ | |
0112cd26 NC |
2068 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2069 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2070 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2071 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2072 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2073 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, | |
2074 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2075 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2076 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2077 | }; |
2078 | ||
b35d266b | 2079 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2080 | { |
0112cd26 NC |
2081 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2082 | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2083 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2084 | }; |
2085 | ||
b35d266b | 2086 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2087 | { |
0112cd26 | 2088 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
68efed41 | 2089 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
0112cd26 NC |
2090 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2091 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
2092 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, | |
2093 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
2094 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, | |
2095 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2096 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2097 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2098 | }; |
2099 | ||
b35d266b | 2100 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2101 | { |
0112cd26 NC |
2102 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2103 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2104 | }; |
2105 | ||
b35d266b | 2106 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2107 | { |
0112cd26 NC |
2108 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2109 | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2110 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, | |
2111 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2112 | }; |
2113 | ||
b35d266b | 2114 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2115 | { |
0112cd26 NC |
2116 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
2117 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2118 | }; |
2119 | ||
b35d266b | 2120 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2121 | { |
0112cd26 NC |
2122 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
2123 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, | |
2124 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2125 | }; |
2126 | ||
b35d266b | 2127 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2128 | { |
0112cd26 NC |
2129 | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
2130 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2131 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2132 | }; |
2133 | ||
b35d266b | 2134 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2135 | { |
0112cd26 NC |
2136 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2137 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2138 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, | |
2139 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2140 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2141 | }; |
2142 | ||
b35d266b | 2143 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2144 | { |
0112cd26 NC |
2145 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2146 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2147 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2148 | /* See struct bfd_elf_special_section declaration for the semantics of |
2149 | this special case where .prefix_length != strlen (.prefix). */ | |
2150 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
0112cd26 | 2151 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2152 | }; |
2153 | ||
b35d266b | 2154 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2155 | { |
0112cd26 NC |
2156 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2157 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2158 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2159 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2160 | }; |
2161 | ||
1b315056 CS |
2162 | static const struct bfd_elf_special_section special_sections_z[] = |
2163 | { | |
2164 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, | |
2165 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
2166 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
2167 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
2168 | { NULL, 0, 0, 0, 0 } | |
2169 | }; | |
2170 | ||
e4c93b56 | 2171 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2172 | { |
7f4d3958 | 2173 | special_sections_b, /* 'b' */ |
98ece1b3 | 2174 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2175 | special_sections_d, /* 'd' */ |
2176 | NULL, /* 'e' */ | |
2177 | special_sections_f, /* 'f' */ | |
2178 | special_sections_g, /* 'g' */ | |
2179 | special_sections_h, /* 'h' */ | |
2180 | special_sections_i, /* 'i' */ | |
2181 | NULL, /* 'j' */ | |
2182 | NULL, /* 'k' */ | |
2183 | special_sections_l, /* 'l' */ | |
2184 | NULL, /* 'm' */ | |
2185 | special_sections_n, /* 'n' */ | |
2186 | NULL, /* 'o' */ | |
2187 | special_sections_p, /* 'p' */ | |
2188 | NULL, /* 'q' */ | |
2189 | special_sections_r, /* 'r' */ | |
2190 | special_sections_s, /* 's' */ | |
2191 | special_sections_t, /* 't' */ | |
1b315056 CS |
2192 | NULL, /* 'u' */ |
2193 | NULL, /* 'v' */ | |
2194 | NULL, /* 'w' */ | |
2195 | NULL, /* 'x' */ | |
2196 | NULL, /* 'y' */ | |
2197 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2198 | }; |
2199 | ||
551b43fd AM |
2200 | const struct bfd_elf_special_section * |
2201 | _bfd_elf_get_special_section (const char *name, | |
2202 | const struct bfd_elf_special_section *spec, | |
2203 | unsigned int rela) | |
2f89ff8d L |
2204 | { |
2205 | int i; | |
7f4d3958 | 2206 | int len; |
7f4d3958 | 2207 | |
551b43fd | 2208 | len = strlen (name); |
7f4d3958 | 2209 | |
551b43fd | 2210 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2211 | { |
2212 | int suffix_len; | |
551b43fd | 2213 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2214 | |
2215 | if (len < prefix_len) | |
2216 | continue; | |
551b43fd | 2217 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2218 | continue; |
2219 | ||
551b43fd | 2220 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2221 | if (suffix_len <= 0) |
2222 | { | |
2223 | if (name[prefix_len] != 0) | |
2224 | { | |
2225 | if (suffix_len == 0) | |
2226 | continue; | |
2227 | if (name[prefix_len] != '.' | |
2228 | && (suffix_len == -2 | |
551b43fd | 2229 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2230 | continue; |
2231 | } | |
2232 | } | |
2233 | else | |
2234 | { | |
2235 | if (len < prefix_len + suffix_len) | |
2236 | continue; | |
2237 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2238 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2239 | suffix_len) != 0) |
2240 | continue; | |
2241 | } | |
551b43fd | 2242 | return &spec[i]; |
7dcb9820 | 2243 | } |
2f89ff8d L |
2244 | |
2245 | return NULL; | |
2246 | } | |
2247 | ||
7dcb9820 | 2248 | const struct bfd_elf_special_section * |
29ef7005 | 2249 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2250 | { |
551b43fd AM |
2251 | int i; |
2252 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2253 | const struct elf_backend_data *bed; |
2f89ff8d L |
2254 | |
2255 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2256 | if (sec->name == NULL) |
2257 | return NULL; | |
2f89ff8d | 2258 | |
29ef7005 L |
2259 | bed = get_elf_backend_data (abfd); |
2260 | spec = bed->special_sections; | |
2261 | if (spec) | |
2262 | { | |
2263 | spec = _bfd_elf_get_special_section (sec->name, | |
2264 | bed->special_sections, | |
2265 | sec->use_rela_p); | |
2266 | if (spec != NULL) | |
2267 | return spec; | |
2268 | } | |
2269 | ||
551b43fd AM |
2270 | if (sec->name[0] != '.') |
2271 | return NULL; | |
2f89ff8d | 2272 | |
551b43fd | 2273 | i = sec->name[1] - 'b'; |
1b315056 | 2274 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2275 | return NULL; |
2276 | ||
2277 | spec = special_sections[i]; | |
2f89ff8d | 2278 | |
551b43fd AM |
2279 | if (spec == NULL) |
2280 | return NULL; | |
2281 | ||
2282 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2283 | } |
2284 | ||
b34976b6 | 2285 | bfd_boolean |
217aa764 | 2286 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2287 | { |
2288 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2289 | const struct elf_backend_data *bed; |
7dcb9820 | 2290 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2291 | |
f0abc2a1 AM |
2292 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2293 | if (sdata == NULL) | |
2294 | { | |
a50b1753 NC |
2295 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
2296 | sizeof (*sdata)); | |
f0abc2a1 AM |
2297 | if (sdata == NULL) |
2298 | return FALSE; | |
217aa764 | 2299 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2300 | } |
bf572ba0 | 2301 | |
551b43fd AM |
2302 | /* Indicate whether or not this section should use RELA relocations. */ |
2303 | bed = get_elf_backend_data (abfd); | |
2304 | sec->use_rela_p = bed->default_use_rela_p; | |
2305 | ||
e843e0f8 L |
2306 | /* When we read a file, we don't need to set ELF section type and |
2307 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2308 | anyway. We will set ELF section type and flags for all linker | |
2309 | created sections. If user specifies BFD section flags, we will | |
2310 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2311 | elf_fake_sections. Special handling for .init_array/.fini_array |
2312 | output sections since they may contain .ctors/.dtors input | |
2313 | sections. We don't want _bfd_elf_init_private_section_data to | |
2314 | copy ELF section type from .ctors/.dtors input sections. */ | |
2315 | if (abfd->direction != read_direction | |
3496cb2a | 2316 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2317 | { |
551b43fd | 2318 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2319 | if (ssect != NULL |
2320 | && (!sec->flags | |
2321 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2322 | || ssect->type == SHT_INIT_ARRAY | |
2323 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2324 | { |
2325 | elf_section_type (sec) = ssect->type; | |
2326 | elf_section_flags (sec) = ssect->attr; | |
2327 | } | |
2f89ff8d L |
2328 | } |
2329 | ||
f592407e | 2330 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2331 | } |
2332 | ||
2333 | /* Create a new bfd section from an ELF program header. | |
2334 | ||
2335 | Since program segments have no names, we generate a synthetic name | |
2336 | of the form segment<NUM>, where NUM is generally the index in the | |
2337 | program header table. For segments that are split (see below) we | |
2338 | generate the names segment<NUM>a and segment<NUM>b. | |
2339 | ||
2340 | Note that some program segments may have a file size that is different than | |
2341 | (less than) the memory size. All this means is that at execution the | |
2342 | system must allocate the amount of memory specified by the memory size, | |
2343 | but only initialize it with the first "file size" bytes read from the | |
2344 | file. This would occur for example, with program segments consisting | |
2345 | of combined data+bss. | |
2346 | ||
2347 | To handle the above situation, this routine generates TWO bfd sections | |
2348 | for the single program segment. The first has the length specified by | |
2349 | the file size of the segment, and the second has the length specified | |
2350 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2351 | into its initialized and uninitialized parts. |
252b5132 RH |
2352 | |
2353 | */ | |
2354 | ||
b34976b6 | 2355 | bfd_boolean |
217aa764 AM |
2356 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2357 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2358 | int hdr_index, |
a50b1753 | 2359 | const char *type_name) |
252b5132 RH |
2360 | { |
2361 | asection *newsect; | |
2362 | char *name; | |
2363 | char namebuf[64]; | |
d4c88bbb | 2364 | size_t len; |
252b5132 RH |
2365 | int split; |
2366 | ||
2367 | split = ((hdr->p_memsz > 0) | |
2368 | && (hdr->p_filesz > 0) | |
2369 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2370 | |
2371 | if (hdr->p_filesz > 0) | |
252b5132 | 2372 | { |
91d6fa6a | 2373 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2374 | len = strlen (namebuf) + 1; |
a50b1753 | 2375 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2376 | if (!name) |
2377 | return FALSE; | |
2378 | memcpy (name, namebuf, len); | |
2379 | newsect = bfd_make_section (abfd, name); | |
2380 | if (newsect == NULL) | |
2381 | return FALSE; | |
2382 | newsect->vma = hdr->p_vaddr; | |
2383 | newsect->lma = hdr->p_paddr; | |
2384 | newsect->size = hdr->p_filesz; | |
2385 | newsect->filepos = hdr->p_offset; | |
2386 | newsect->flags |= SEC_HAS_CONTENTS; | |
2387 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2388 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2389 | { |
d5191d0c AM |
2390 | newsect->flags |= SEC_ALLOC; |
2391 | newsect->flags |= SEC_LOAD; | |
2392 | if (hdr->p_flags & PF_X) | |
2393 | { | |
2394 | /* FIXME: all we known is that it has execute PERMISSION, | |
2395 | may be data. */ | |
2396 | newsect->flags |= SEC_CODE; | |
2397 | } | |
2398 | } | |
2399 | if (!(hdr->p_flags & PF_W)) | |
2400 | { | |
2401 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2402 | } |
252b5132 RH |
2403 | } |
2404 | ||
d5191d0c | 2405 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2406 | { |
d5191d0c AM |
2407 | bfd_vma align; |
2408 | ||
91d6fa6a | 2409 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2410 | len = strlen (namebuf) + 1; |
a50b1753 | 2411 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2412 | if (!name) |
b34976b6 | 2413 | return FALSE; |
d4c88bbb | 2414 | memcpy (name, namebuf, len); |
252b5132 RH |
2415 | newsect = bfd_make_section (abfd, name); |
2416 | if (newsect == NULL) | |
b34976b6 | 2417 | return FALSE; |
252b5132 RH |
2418 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2419 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2420 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2421 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2422 | align = newsect->vma & -newsect->vma; | |
2423 | if (align == 0 || align > hdr->p_align) | |
2424 | align = hdr->p_align; | |
2425 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2426 | if (hdr->p_type == PT_LOAD) |
2427 | { | |
d5191d0c AM |
2428 | /* Hack for gdb. Segments that have not been modified do |
2429 | not have their contents written to a core file, on the | |
2430 | assumption that a debugger can find the contents in the | |
2431 | executable. We flag this case by setting the fake | |
2432 | section size to zero. Note that "real" bss sections will | |
2433 | always have their contents dumped to the core file. */ | |
2434 | if (bfd_get_format (abfd) == bfd_core) | |
2435 | newsect->size = 0; | |
252b5132 RH |
2436 | newsect->flags |= SEC_ALLOC; |
2437 | if (hdr->p_flags & PF_X) | |
2438 | newsect->flags |= SEC_CODE; | |
2439 | } | |
2440 | if (!(hdr->p_flags & PF_W)) | |
2441 | newsect->flags |= SEC_READONLY; | |
2442 | } | |
2443 | ||
b34976b6 | 2444 | return TRUE; |
252b5132 RH |
2445 | } |
2446 | ||
b34976b6 | 2447 | bfd_boolean |
91d6fa6a | 2448 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 2449 | { |
9c5bfbb7 | 2450 | const struct elf_backend_data *bed; |
20cfcaae NC |
2451 | |
2452 | switch (hdr->p_type) | |
2453 | { | |
2454 | case PT_NULL: | |
91d6fa6a | 2455 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
2456 | |
2457 | case PT_LOAD: | |
91d6fa6a | 2458 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
2459 | |
2460 | case PT_DYNAMIC: | |
91d6fa6a | 2461 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
2462 | |
2463 | case PT_INTERP: | |
91d6fa6a | 2464 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
2465 | |
2466 | case PT_NOTE: | |
91d6fa6a | 2467 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 2468 | return FALSE; |
718175fa | 2469 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) |
b34976b6 AM |
2470 | return FALSE; |
2471 | return TRUE; | |
20cfcaae NC |
2472 | |
2473 | case PT_SHLIB: | |
91d6fa6a | 2474 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
2475 | |
2476 | case PT_PHDR: | |
91d6fa6a | 2477 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 2478 | |
811072d8 | 2479 | case PT_GNU_EH_FRAME: |
91d6fa6a | 2480 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
2481 | "eh_frame_hdr"); |
2482 | ||
2b05f1b7 | 2483 | case PT_GNU_STACK: |
91d6fa6a | 2484 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 2485 | |
8c37241b | 2486 | case PT_GNU_RELRO: |
91d6fa6a | 2487 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 2488 | |
20cfcaae | 2489 | default: |
8c1acd09 | 2490 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 2491 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 2492 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
2493 | } |
2494 | } | |
2495 | ||
d4730f92 BS |
2496 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
2497 | REL or RELA. */ | |
2498 | ||
2499 | Elf_Internal_Shdr * | |
2500 | _bfd_elf_single_rel_hdr (asection *sec) | |
2501 | { | |
2502 | if (elf_section_data (sec)->rel.hdr) | |
2503 | { | |
2504 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
2505 | return elf_section_data (sec)->rel.hdr; | |
2506 | } | |
2507 | else | |
2508 | return elf_section_data (sec)->rela.hdr; | |
2509 | } | |
2510 | ||
2511 | /* Allocate and initialize a section-header for a new reloc section, | |
2512 | containing relocations against ASECT. It is stored in RELDATA. If | |
2513 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
2514 | relocations. */ | |
23bc299b | 2515 | |
b34976b6 | 2516 | bfd_boolean |
217aa764 | 2517 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 2518 | struct bfd_elf_section_reloc_data *reldata, |
217aa764 AM |
2519 | asection *asect, |
2520 | bfd_boolean use_rela_p) | |
23bc299b | 2521 | { |
d4730f92 | 2522 | Elf_Internal_Shdr *rel_hdr; |
23bc299b | 2523 | char *name; |
9c5bfbb7 | 2524 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2525 | bfd_size_type amt; |
2526 | ||
2527 | amt = sizeof (Elf_Internal_Shdr); | |
2528 | BFD_ASSERT (reldata->hdr == NULL); | |
2529 | rel_hdr = bfd_zalloc (abfd, amt); | |
2530 | reldata->hdr = rel_hdr; | |
23bc299b | 2531 | |
d324f6d6 | 2532 | amt = sizeof ".rela" + strlen (asect->name); |
a50b1753 | 2533 | name = (char *) bfd_alloc (abfd, amt); |
23bc299b | 2534 | if (name == NULL) |
b34976b6 | 2535 | return FALSE; |
23bc299b MM |
2536 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); |
2537 | rel_hdr->sh_name = | |
2b0f7ef9 | 2538 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, |
b34976b6 | 2539 | FALSE); |
23bc299b | 2540 | if (rel_hdr->sh_name == (unsigned int) -1) |
b34976b6 | 2541 | return FALSE; |
23bc299b MM |
2542 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
2543 | rel_hdr->sh_entsize = (use_rela_p | |
2544 | ? bed->s->sizeof_rela | |
2545 | : bed->s->sizeof_rel); | |
72de5009 | 2546 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
23bc299b MM |
2547 | rel_hdr->sh_flags = 0; |
2548 | rel_hdr->sh_addr = 0; | |
2549 | rel_hdr->sh_size = 0; | |
2550 | rel_hdr->sh_offset = 0; | |
2551 | ||
b34976b6 | 2552 | return TRUE; |
23bc299b MM |
2553 | } |
2554 | ||
94be91de JB |
2555 | /* Return the default section type based on the passed in section flags. */ |
2556 | ||
2557 | int | |
2558 | bfd_elf_get_default_section_type (flagword flags) | |
2559 | { | |
2560 | if ((flags & SEC_ALLOC) != 0 | |
2e76e85a | 2561 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
2562 | return SHT_NOBITS; |
2563 | return SHT_PROGBITS; | |
2564 | } | |
2565 | ||
d4730f92 BS |
2566 | struct fake_section_arg |
2567 | { | |
2568 | struct bfd_link_info *link_info; | |
2569 | bfd_boolean failed; | |
2570 | }; | |
2571 | ||
252b5132 RH |
2572 | /* Set up an ELF internal section header for a section. */ |
2573 | ||
252b5132 | 2574 | static void |
d4730f92 | 2575 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 2576 | { |
d4730f92 | 2577 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 2578 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 2579 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 2580 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 2581 | unsigned int sh_type; |
252b5132 | 2582 | |
d4730f92 | 2583 | if (arg->failed) |
252b5132 RH |
2584 | { |
2585 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 2586 | loop. */ |
252b5132 RH |
2587 | return; |
2588 | } | |
2589 | ||
d4730f92 | 2590 | this_hdr = &esd->this_hdr; |
252b5132 | 2591 | |
e57b5356 AM |
2592 | this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
2593 | asect->name, FALSE); | |
2594 | if (this_hdr->sh_name == (unsigned int) -1) | |
252b5132 | 2595 | { |
d4730f92 | 2596 | arg->failed = TRUE; |
252b5132 RH |
2597 | return; |
2598 | } | |
2599 | ||
a4d8e49b | 2600 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
2601 | |
2602 | if ((asect->flags & SEC_ALLOC) != 0 | |
2603 | || asect->user_set_vma) | |
2604 | this_hdr->sh_addr = asect->vma; | |
2605 | else | |
2606 | this_hdr->sh_addr = 0; | |
2607 | ||
2608 | this_hdr->sh_offset = 0; | |
eea6121a | 2609 | this_hdr->sh_size = asect->size; |
252b5132 | 2610 | this_hdr->sh_link = 0; |
72de5009 | 2611 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
2612 | /* The sh_entsize and sh_info fields may have been set already by |
2613 | copy_private_section_data. */ | |
2614 | ||
2615 | this_hdr->bfd_section = asect; | |
2616 | this_hdr->contents = NULL; | |
2617 | ||
3cddba1e L |
2618 | /* If the section type is unspecified, we set it based on |
2619 | asect->flags. */ | |
98ece1b3 AM |
2620 | if ((asect->flags & SEC_GROUP) != 0) |
2621 | sh_type = SHT_GROUP; | |
98ece1b3 | 2622 | else |
94be91de | 2623 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 2624 | |
3cddba1e | 2625 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
2626 | this_hdr->sh_type = sh_type; |
2627 | else if (this_hdr->sh_type == SHT_NOBITS | |
2628 | && sh_type == SHT_PROGBITS | |
2629 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 2630 | { |
98ece1b3 AM |
2631 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
2632 | allow the link to proceed. This can happen when users link | |
2633 | non-bss input sections to bss output sections, or emit data | |
2634 | to a bss output section via a linker script. */ | |
2635 | (*_bfd_error_handler) | |
58f0869b | 2636 | (_("warning: section `%A' type changed to PROGBITS"), asect); |
98ece1b3 | 2637 | this_hdr->sh_type = sh_type; |
3cddba1e L |
2638 | } |
2639 | ||
2f89ff8d | 2640 | switch (this_hdr->sh_type) |
252b5132 | 2641 | { |
2f89ff8d | 2642 | default: |
2f89ff8d L |
2643 | break; |
2644 | ||
2645 | case SHT_STRTAB: | |
2646 | case SHT_INIT_ARRAY: | |
2647 | case SHT_FINI_ARRAY: | |
2648 | case SHT_PREINIT_ARRAY: | |
2649 | case SHT_NOTE: | |
2650 | case SHT_NOBITS: | |
2651 | case SHT_PROGBITS: | |
2652 | break; | |
2653 | ||
2654 | case SHT_HASH: | |
c7ac6ff8 | 2655 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 2656 | break; |
5de3bf90 | 2657 | |
2f89ff8d | 2658 | case SHT_DYNSYM: |
252b5132 | 2659 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
2660 | break; |
2661 | ||
2662 | case SHT_DYNAMIC: | |
252b5132 | 2663 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
2664 | break; |
2665 | ||
2666 | case SHT_RELA: | |
2667 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
2668 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2669 | break; | |
2670 | ||
2671 | case SHT_REL: | |
2672 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
2673 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2674 | break; | |
2675 | ||
2676 | case SHT_GNU_versym: | |
252b5132 | 2677 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
2678 | break; |
2679 | ||
2680 | case SHT_GNU_verdef: | |
252b5132 RH |
2681 | this_hdr->sh_entsize = 0; |
2682 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2683 | cverdefs. The linker will set cverdefs, but sh_info will be |
2684 | zero. */ | |
252b5132 RH |
2685 | if (this_hdr->sh_info == 0) |
2686 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2687 | else | |
2688 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
2689 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
2690 | break; |
2691 | ||
2692 | case SHT_GNU_verneed: | |
252b5132 RH |
2693 | this_hdr->sh_entsize = 0; |
2694 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
2695 | cverrefs. The linker will set cverrefs, but sh_info will be |
2696 | zero. */ | |
252b5132 RH |
2697 | if (this_hdr->sh_info == 0) |
2698 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
2699 | else | |
2700 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
2701 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
2702 | break; |
2703 | ||
2704 | case SHT_GROUP: | |
1783205a | 2705 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 2706 | break; |
fdc90cb4 JJ |
2707 | |
2708 | case SHT_GNU_HASH: | |
2709 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
2710 | break; | |
dbb410c3 | 2711 | } |
252b5132 RH |
2712 | |
2713 | if ((asect->flags & SEC_ALLOC) != 0) | |
2714 | this_hdr->sh_flags |= SHF_ALLOC; | |
2715 | if ((asect->flags & SEC_READONLY) == 0) | |
2716 | this_hdr->sh_flags |= SHF_WRITE; | |
2717 | if ((asect->flags & SEC_CODE) != 0) | |
2718 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
2719 | if ((asect->flags & SEC_MERGE) != 0) |
2720 | { | |
2721 | this_hdr->sh_flags |= SHF_MERGE; | |
2722 | this_hdr->sh_entsize = asect->entsize; | |
2723 | if ((asect->flags & SEC_STRINGS) != 0) | |
2724 | this_hdr->sh_flags |= SHF_STRINGS; | |
2725 | } | |
1126897b | 2726 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 2727 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 2728 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
2729 | { |
2730 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
2731 | if (asect->size == 0 |
2732 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 2733 | { |
3a800eb9 | 2734 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 2735 | |
704afa60 | 2736 | this_hdr->sh_size = 0; |
3a800eb9 AM |
2737 | if (o != NULL) |
2738 | { | |
704afa60 | 2739 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
2740 | if (this_hdr->sh_size != 0) |
2741 | this_hdr->sh_type = SHT_NOBITS; | |
2742 | } | |
704afa60 JJ |
2743 | } |
2744 | } | |
18ae9cc1 L |
2745 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
2746 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 2747 | |
d4730f92 BS |
2748 | /* If the section has relocs, set up a section header for the |
2749 | SHT_REL[A] section. If two relocation sections are required for | |
2750 | this section, it is up to the processor-specific back-end to | |
2751 | create the other. */ | |
2752 | if ((asect->flags & SEC_RELOC) != 0) | |
2753 | { | |
2754 | /* When doing a relocatable link, create both REL and RELA sections if | |
2755 | needed. */ | |
2756 | if (arg->link_info | |
2757 | /* Do the normal setup if we wouldn't create any sections here. */ | |
2758 | && esd->rel.count + esd->rela.count > 0 | |
2759 | && (arg->link_info->relocatable || arg->link_info->emitrelocations)) | |
2760 | { | |
2761 | if (esd->rel.count && esd->rel.hdr == NULL | |
2762 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, asect, FALSE)) | |
2763 | { | |
2764 | arg->failed = TRUE; | |
2765 | return; | |
2766 | } | |
2767 | if (esd->rela.count && esd->rela.hdr == NULL | |
2768 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, asect, TRUE)) | |
2769 | { | |
2770 | arg->failed = TRUE; | |
2771 | return; | |
2772 | } | |
2773 | } | |
2774 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
2775 | (asect->use_rela_p | |
2776 | ? &esd->rela : &esd->rel), | |
2777 | asect, | |
2778 | asect->use_rela_p)) | |
2779 | arg->failed = TRUE; | |
2780 | } | |
2781 | ||
252b5132 | 2782 | /* Check for processor-specific section types. */ |
0414f35b | 2783 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
2784 | if (bed->elf_backend_fake_sections |
2785 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
d4730f92 | 2786 | arg->failed = TRUE; |
252b5132 | 2787 | |
42bb2e33 | 2788 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
2789 | { |
2790 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 2791 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
2792 | this_hdr->sh_type = sh_type; |
2793 | } | |
252b5132 RH |
2794 | } |
2795 | ||
bcacc0f5 AM |
2796 | /* Fill in the contents of a SHT_GROUP section. Called from |
2797 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
2798 | when ELF targets use the generic linker, ld. Called for ld -r | |
2799 | from bfd_elf_final_link. */ | |
dbb410c3 | 2800 | |
1126897b | 2801 | void |
217aa764 | 2802 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 2803 | { |
a50b1753 | 2804 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 2805 | asection *elt, *first; |
dbb410c3 | 2806 | unsigned char *loc; |
b34976b6 | 2807 | bfd_boolean gas; |
dbb410c3 | 2808 | |
7e4111ad L |
2809 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
2810 | elfxx-ia64.c. */ | |
2811 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
2812 | || *failedptr) |
2813 | return; | |
2814 | ||
bcacc0f5 AM |
2815 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
2816 | { | |
2817 | unsigned long symindx = 0; | |
2818 | ||
2819 | /* elf_group_id will have been set up by objcopy and the | |
2820 | generic linker. */ | |
2821 | if (elf_group_id (sec) != NULL) | |
2822 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 2823 | |
bcacc0f5 AM |
2824 | if (symindx == 0) |
2825 | { | |
2826 | /* If called from the assembler, swap_out_syms will have set up | |
2827 | elf_section_syms. */ | |
2828 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
2829 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
2830 | } | |
2831 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
2832 | } | |
2833 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 2834 | { |
bcacc0f5 AM |
2835 | /* The ELF backend linker sets sh_info to -2 when the group |
2836 | signature symbol is global, and thus the index can't be | |
2837 | set until all local symbols are output. */ | |
2838 | asection *igroup = elf_sec_group (elf_next_in_group (sec)); | |
2839 | struct bfd_elf_section_data *sec_data = elf_section_data (igroup); | |
2840 | unsigned long symndx = sec_data->this_hdr.sh_info; | |
2841 | unsigned long extsymoff = 0; | |
2842 | struct elf_link_hash_entry *h; | |
2843 | ||
2844 | if (!elf_bad_symtab (igroup->owner)) | |
2845 | { | |
2846 | Elf_Internal_Shdr *symtab_hdr; | |
2847 | ||
2848 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
2849 | extsymoff = symtab_hdr->sh_info; | |
2850 | } | |
2851 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
2852 | while (h->root.type == bfd_link_hash_indirect | |
2853 | || h->root.type == bfd_link_hash_warning) | |
2854 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2855 | ||
2856 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 2857 | } |
dbb410c3 | 2858 | |
1126897b | 2859 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 2860 | gas = TRUE; |
dbb410c3 AM |
2861 | if (sec->contents == NULL) |
2862 | { | |
b34976b6 | 2863 | gas = FALSE; |
a50b1753 | 2864 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
2865 | |
2866 | /* Arrange for the section to be written out. */ | |
2867 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
2868 | if (sec->contents == NULL) |
2869 | { | |
b34976b6 | 2870 | *failedptr = TRUE; |
dbb410c3 AM |
2871 | return; |
2872 | } | |
2873 | } | |
2874 | ||
eea6121a | 2875 | loc = sec->contents + sec->size; |
dbb410c3 | 2876 | |
9dce4196 AM |
2877 | /* Get the pointer to the first section in the group that gas |
2878 | squirreled away here. objcopy arranges for this to be set to the | |
2879 | start of the input section group. */ | |
2880 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
2881 | |
2882 | /* First element is a flag word. Rest of section is elf section | |
2883 | indices for all the sections of the group. Write them backwards | |
2884 | just to keep the group in the same order as given in .section | |
2885 | directives, not that it matters. */ | |
2886 | while (elt != NULL) | |
2887 | { | |
9dce4196 | 2888 | asection *s; |
9dce4196 | 2889 | |
9dce4196 | 2890 | s = elt; |
415f38a6 AM |
2891 | if (!gas) |
2892 | s = s->output_section; | |
2893 | if (s != NULL | |
2894 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 2895 | { |
415f38a6 AM |
2896 | unsigned int idx = elf_section_data (s)->this_idx; |
2897 | ||
01e1a5bc | 2898 | loc -= 4; |
01e1a5bc NC |
2899 | H_PUT_32 (abfd, idx, loc); |
2900 | } | |
945906ff | 2901 | elt = elf_next_in_group (elt); |
9dce4196 AM |
2902 | if (elt == first) |
2903 | break; | |
dbb410c3 AM |
2904 | } |
2905 | ||
3d7f7666 | 2906 | if ((loc -= 4) != sec->contents) |
9dce4196 | 2907 | abort (); |
dbb410c3 | 2908 | |
9dce4196 | 2909 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
2910 | } |
2911 | ||
252b5132 RH |
2912 | /* Assign all ELF section numbers. The dummy first section is handled here |
2913 | too. The link/info pointers for the standard section types are filled | |
2914 | in here too, while we're at it. */ | |
2915 | ||
b34976b6 | 2916 | static bfd_boolean |
da9f89d4 | 2917 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
2918 | { |
2919 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
2920 | asection *sec; | |
2b0f7ef9 | 2921 | unsigned int section_number, secn; |
252b5132 | 2922 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 2923 | struct bfd_elf_section_data *d; |
3516e984 | 2924 | bfd_boolean need_symtab; |
252b5132 RH |
2925 | |
2926 | section_number = 1; | |
2927 | ||
2b0f7ef9 JJ |
2928 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
2929 | ||
da9f89d4 L |
2930 | /* SHT_GROUP sections are in relocatable files only. */ |
2931 | if (link_info == NULL || link_info->relocatable) | |
252b5132 | 2932 | { |
da9f89d4 | 2933 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 2934 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 2935 | { |
5daa8fe7 | 2936 | d = elf_section_data (sec); |
da9f89d4 L |
2937 | |
2938 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 2939 | { |
5daa8fe7 | 2940 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
2941 | { |
2942 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 2943 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 2944 | abfd->section_count--; |
da9f89d4 | 2945 | } |
08a40648 | 2946 | else |
4fbb74a6 | 2947 | d->this_idx = section_number++; |
da9f89d4 | 2948 | } |
47cc2cf5 PB |
2949 | } |
2950 | } | |
2951 | ||
2952 | for (sec = abfd->sections; sec; sec = sec->next) | |
2953 | { | |
2954 | d = elf_section_data (sec); | |
2955 | ||
2956 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 2957 | d->this_idx = section_number++; |
2b0f7ef9 | 2958 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); |
d4730f92 | 2959 | if (d->rel.hdr) |
2b0f7ef9 | 2960 | { |
d4730f92 BS |
2961 | d->rel.idx = section_number++; |
2962 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 2963 | } |
d4730f92 BS |
2964 | else |
2965 | d->rel.idx = 0; | |
23bc299b | 2966 | |
d4730f92 | 2967 | if (d->rela.hdr) |
2b0f7ef9 | 2968 | { |
d4730f92 BS |
2969 | d->rela.idx = section_number++; |
2970 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 2971 | } |
23bc299b | 2972 | else |
d4730f92 | 2973 | d->rela.idx = 0; |
252b5132 RH |
2974 | } |
2975 | ||
2976 | t->shstrtab_section = section_number++; | |
2b0f7ef9 | 2977 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
252b5132 | 2978 | elf_elfheader (abfd)->e_shstrndx = t->shstrtab_section; |
252b5132 | 2979 | |
3516e984 L |
2980 | need_symtab = (bfd_get_symcount (abfd) > 0 |
2981 | || (link_info == NULL | |
2982 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
2983 | == HAS_RELOC))); | |
2984 | if (need_symtab) | |
252b5132 RH |
2985 | { |
2986 | t->symtab_section = section_number++; | |
2b0f7ef9 | 2987 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 2988 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 2989 | { |
9ad5cbcf AM |
2990 | t->symtab_shndx_section = section_number++; |
2991 | t->symtab_shndx_hdr.sh_name | |
2992 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
b34976b6 | 2993 | ".symtab_shndx", FALSE); |
9ad5cbcf | 2994 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 2995 | return FALSE; |
9ad5cbcf | 2996 | } |
252b5132 | 2997 | t->strtab_section = section_number++; |
2b0f7ef9 | 2998 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
2999 | } |
3000 | ||
1c52a645 L |
3001 | if (section_number >= SHN_LORESERVE) |
3002 | { | |
3003 | _bfd_error_handler (_("%B: too many sections: %u"), | |
3004 | abfd, section_number); | |
3005 | return FALSE; | |
3006 | } | |
3007 | ||
2b0f7ef9 JJ |
3008 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); |
3009 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
9ad5cbcf AM |
3010 | |
3011 | elf_numsections (abfd) = section_number; | |
252b5132 RH |
3012 | elf_elfheader (abfd)->e_shnum = section_number; |
3013 | ||
3014 | /* Set up the list of section header pointers, in agreement with the | |
3015 | indices. */ | |
a50b1753 NC |
3016 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
3017 | sizeof (Elf_Internal_Shdr *)); | |
252b5132 | 3018 | if (i_shdrp == NULL) |
b34976b6 | 3019 | return FALSE; |
252b5132 | 3020 | |
a50b1753 NC |
3021 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
3022 | sizeof (Elf_Internal_Shdr)); | |
252b5132 RH |
3023 | if (i_shdrp[0] == NULL) |
3024 | { | |
3025 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3026 | return FALSE; |
252b5132 | 3027 | } |
252b5132 RH |
3028 | |
3029 | elf_elfsections (abfd) = i_shdrp; | |
3030 | ||
3031 | i_shdrp[t->shstrtab_section] = &t->shstrtab_hdr; | |
3516e984 | 3032 | if (need_symtab) |
252b5132 RH |
3033 | { |
3034 | i_shdrp[t->symtab_section] = &t->symtab_hdr; | |
4fbb74a6 | 3035 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf AM |
3036 | { |
3037 | i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr; | |
3038 | t->symtab_shndx_hdr.sh_link = t->symtab_section; | |
3039 | } | |
252b5132 RH |
3040 | i_shdrp[t->strtab_section] = &t->strtab_hdr; |
3041 | t->symtab_hdr.sh_link = t->strtab_section; | |
3042 | } | |
38ce5b11 | 3043 | |
252b5132 RH |
3044 | for (sec = abfd->sections; sec; sec = sec->next) |
3045 | { | |
252b5132 RH |
3046 | asection *s; |
3047 | const char *name; | |
3048 | ||
91d6fa6a NC |
3049 | d = elf_section_data (sec); |
3050 | ||
252b5132 | 3051 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3052 | if (d->rel.idx != 0) |
3053 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3054 | if (d->rela.idx != 0) | |
3055 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3056 | |
3057 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3058 | ||
3059 | /* sh_link of a reloc section is the section index of the symbol | |
3060 | table. sh_info is the section index of the section to which | |
3061 | the relocation entries apply. */ | |
d4730f92 | 3062 | if (d->rel.idx != 0) |
252b5132 | 3063 | { |
d4730f92 BS |
3064 | d->rel.hdr->sh_link = t->symtab_section; |
3065 | d->rel.hdr->sh_info = d->this_idx; | |
252b5132 | 3066 | } |
d4730f92 | 3067 | if (d->rela.idx != 0) |
23bc299b | 3068 | { |
d4730f92 BS |
3069 | d->rela.hdr->sh_link = t->symtab_section; |
3070 | d->rela.hdr->sh_info = d->this_idx; | |
23bc299b | 3071 | } |
252b5132 | 3072 | |
38ce5b11 L |
3073 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3074 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3075 | { | |
3076 | s = elf_linked_to_section (sec); | |
3077 | if (s) | |
38ce5b11 | 3078 | { |
f2876037 | 3079 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3080 | if (link_info != NULL) |
38ce5b11 | 3081 | { |
f2876037 | 3082 | /* Check discarded linkonce section. */ |
dbaa2011 | 3083 | if (discarded_section (s)) |
38ce5b11 | 3084 | { |
ccd2ec6a L |
3085 | asection *kept; |
3086 | (*_bfd_error_handler) | |
3087 | (_("%B: sh_link of section `%A' points to discarded section `%A' of `%B'"), | |
3088 | abfd, d->this_hdr.bfd_section, | |
3089 | s, s->owner); | |
3090 | /* Point to the kept section if it has the same | |
3091 | size as the discarded one. */ | |
c0f00686 | 3092 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3093 | if (kept == NULL) |
185d09ad | 3094 | { |
ccd2ec6a L |
3095 | bfd_set_error (bfd_error_bad_value); |
3096 | return FALSE; | |
185d09ad | 3097 | } |
ccd2ec6a | 3098 | s = kept; |
38ce5b11 | 3099 | } |
e424ecc8 | 3100 | |
ccd2ec6a L |
3101 | s = s->output_section; |
3102 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3103 | } |
f2876037 L |
3104 | else |
3105 | { | |
3106 | /* Handle objcopy. */ | |
3107 | if (s->output_section == NULL) | |
3108 | { | |
3109 | (*_bfd_error_handler) | |
3110 | (_("%B: sh_link of section `%A' points to removed section `%A' of `%B'"), | |
3111 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3112 | bfd_set_error (bfd_error_bad_value); | |
3113 | return FALSE; | |
3114 | } | |
3115 | s = s->output_section; | |
3116 | } | |
ccd2ec6a L |
3117 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3118 | } | |
3119 | else | |
3120 | { | |
3121 | /* PR 290: | |
3122 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3123 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3124 | sh_info fields. Hence we could get the situation | |
08a40648 | 3125 | where s is NULL. */ |
ccd2ec6a L |
3126 | const struct elf_backend_data *bed |
3127 | = get_elf_backend_data (abfd); | |
3128 | if (bed->link_order_error_handler) | |
3129 | bed->link_order_error_handler | |
3130 | (_("%B: warning: sh_link not set for section `%A'"), | |
3131 | abfd, sec); | |
38ce5b11 L |
3132 | } |
3133 | } | |
3134 | ||
252b5132 RH |
3135 | switch (d->this_hdr.sh_type) |
3136 | { | |
3137 | case SHT_REL: | |
3138 | case SHT_RELA: | |
3139 | /* A reloc section which we are treating as a normal BFD | |
3140 | section. sh_link is the section index of the symbol | |
3141 | table. sh_info is the section index of the section to | |
3142 | which the relocation entries apply. We assume that an | |
3143 | allocated reloc section uses the dynamic symbol table. | |
3144 | FIXME: How can we be sure? */ | |
3145 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3146 | if (s != NULL) | |
3147 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3148 | ||
3149 | /* We look up the section the relocs apply to by name. */ | |
3150 | name = sec->name; | |
3151 | if (d->this_hdr.sh_type == SHT_REL) | |
3152 | name += 4; | |
3153 | else | |
3154 | name += 5; | |
3155 | s = bfd_get_section_by_name (abfd, name); | |
3156 | if (s != NULL) | |
3157 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3158 | break; | |
3159 | ||
3160 | case SHT_STRTAB: | |
3161 | /* We assume that a section named .stab*str is a stabs | |
3162 | string section. We look for a section with the same name | |
3163 | but without the trailing ``str'', and set its sh_link | |
3164 | field to point to this section. */ | |
0112cd26 | 3165 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3166 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3167 | { | |
3168 | size_t len; | |
3169 | char *alc; | |
3170 | ||
3171 | len = strlen (sec->name); | |
a50b1753 | 3172 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3173 | if (alc == NULL) |
b34976b6 | 3174 | return FALSE; |
d4c88bbb | 3175 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3176 | alc[len - 3] = '\0'; |
3177 | s = bfd_get_section_by_name (abfd, alc); | |
3178 | free (alc); | |
3179 | if (s != NULL) | |
3180 | { | |
3181 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3182 | ||
3183 | /* This is a .stab section. */ | |
0594c12d AM |
3184 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3185 | elf_section_data (s)->this_hdr.sh_entsize | |
3186 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3187 | } |
3188 | } | |
3189 | break; | |
3190 | ||
3191 | case SHT_DYNAMIC: | |
3192 | case SHT_DYNSYM: | |
3193 | case SHT_GNU_verneed: | |
3194 | case SHT_GNU_verdef: | |
3195 | /* sh_link is the section header index of the string table | |
3196 | used for the dynamic entries, or the symbol table, or the | |
3197 | version strings. */ | |
3198 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3199 | if (s != NULL) | |
3200 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3201 | break; | |
3202 | ||
7f1204bb JJ |
3203 | case SHT_GNU_LIBLIST: |
3204 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3205 | list used for the dynamic entries, or the symbol table, or |
3206 | the version strings. */ | |
7f1204bb JJ |
3207 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3208 | ? ".dynstr" : ".gnu.libstr"); | |
3209 | if (s != NULL) | |
3210 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3211 | break; | |
3212 | ||
252b5132 | 3213 | case SHT_HASH: |
fdc90cb4 | 3214 | case SHT_GNU_HASH: |
252b5132 RH |
3215 | case SHT_GNU_versym: |
3216 | /* sh_link is the section header index of the symbol table | |
3217 | this hash table or version table is for. */ | |
3218 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3219 | if (s != NULL) | |
3220 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3221 | break; | |
dbb410c3 AM |
3222 | |
3223 | case SHT_GROUP: | |
3224 | d->this_hdr.sh_link = t->symtab_section; | |
252b5132 RH |
3225 | } |
3226 | } | |
3227 | ||
2b0f7ef9 | 3228 | for (secn = 1; secn < section_number; ++secn) |
9ad5cbcf AM |
3229 | if (i_shdrp[secn] == NULL) |
3230 | i_shdrp[secn] = i_shdrp[0]; | |
3231 | else | |
3232 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
3233 | i_shdrp[secn]->sh_name); | |
b34976b6 | 3234 | return TRUE; |
252b5132 RH |
3235 | } |
3236 | ||
5372391b | 3237 | static bfd_boolean |
217aa764 | 3238 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3239 | { |
3240 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3241 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3242 | if (bed->elf_backend_sym_is_global) |
3243 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 3244 | |
e47bf690 | 3245 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
3246 | || bfd_is_und_section (bfd_get_section (sym)) |
3247 | || bfd_is_com_section (bfd_get_section (sym))); | |
3248 | } | |
3249 | ||
5372391b | 3250 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 3251 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
3252 | |
3253 | static bfd_boolean | |
3254 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
3255 | { | |
c6d8cab4 L |
3256 | elf_symbol_type *type_ptr; |
3257 | ||
3258 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3259 | return FALSE; | |
3260 | ||
3261 | type_ptr = elf_symbol_from (abfd, sym); | |
3262 | return ((type_ptr != NULL | |
3263 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
3264 | && bfd_is_abs_section (sym->section)) | |
3265 | || !(sym->section->owner == abfd | |
0f0a5e58 | 3266 | || (sym->section->output_section->owner == abfd |
2633a79c AM |
3267 | && sym->section->output_offset == 0) |
3268 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
3269 | } |
3270 | ||
2633a79c AM |
3271 | /* Map symbol from it's internal number to the external number, moving |
3272 | all local symbols to be at the head of the list. */ | |
3273 | ||
b34976b6 | 3274 | static bfd_boolean |
217aa764 | 3275 | elf_map_symbols (bfd *abfd) |
252b5132 | 3276 | { |
dc810e39 | 3277 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
3278 | asymbol **syms = bfd_get_outsymbols (abfd); |
3279 | asymbol **sect_syms; | |
dc810e39 AM |
3280 | unsigned int num_locals = 0; |
3281 | unsigned int num_globals = 0; | |
3282 | unsigned int num_locals2 = 0; | |
3283 | unsigned int num_globals2 = 0; | |
252b5132 | 3284 | int max_index = 0; |
dc810e39 | 3285 | unsigned int idx; |
252b5132 RH |
3286 | asection *asect; |
3287 | asymbol **new_syms; | |
252b5132 RH |
3288 | |
3289 | #ifdef DEBUG | |
3290 | fprintf (stderr, "elf_map_symbols\n"); | |
3291 | fflush (stderr); | |
3292 | #endif | |
3293 | ||
252b5132 RH |
3294 | for (asect = abfd->sections; asect; asect = asect->next) |
3295 | { | |
3296 | if (max_index < asect->index) | |
3297 | max_index = asect->index; | |
3298 | } | |
3299 | ||
3300 | max_index++; | |
a50b1753 | 3301 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 3302 | if (sect_syms == NULL) |
b34976b6 | 3303 | return FALSE; |
252b5132 | 3304 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 3305 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 3306 | |
079e9a2f AM |
3307 | /* Init sect_syms entries for any section symbols we have already |
3308 | decided to output. */ | |
252b5132 RH |
3309 | for (idx = 0; idx < symcount; idx++) |
3310 | { | |
dc810e39 | 3311 | asymbol *sym = syms[idx]; |
c044fabd | 3312 | |
252b5132 | 3313 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 3314 | && sym->value == 0 |
2633a79c AM |
3315 | && !ignore_section_sym (abfd, sym) |
3316 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 3317 | { |
5372391b | 3318 | asection *sec = sym->section; |
252b5132 | 3319 | |
5372391b AM |
3320 | if (sec->owner != abfd) |
3321 | sec = sec->output_section; | |
252b5132 | 3322 | |
5372391b | 3323 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
3324 | } |
3325 | } | |
3326 | ||
252b5132 RH |
3327 | /* Classify all of the symbols. */ |
3328 | for (idx = 0; idx < symcount; idx++) | |
3329 | { | |
2633a79c | 3330 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 3331 | num_globals++; |
2633a79c AM |
3332 | else if (!ignore_section_sym (abfd, syms[idx])) |
3333 | num_locals++; | |
252b5132 | 3334 | } |
079e9a2f | 3335 | |
5372391b | 3336 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
3337 | sections will already have a section symbol in outsymbols, but |
3338 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
3339 | at least in that case. */ | |
252b5132 RH |
3340 | for (asect = abfd->sections; asect; asect = asect->next) |
3341 | { | |
079e9a2f | 3342 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3343 | { |
079e9a2f | 3344 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
3345 | num_locals++; |
3346 | else | |
3347 | num_globals++; | |
252b5132 RH |
3348 | } |
3349 | } | |
3350 | ||
3351 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 NC |
3352 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
3353 | sizeof (asymbol *)); | |
dc810e39 | 3354 | |
252b5132 | 3355 | if (new_syms == NULL) |
b34976b6 | 3356 | return FALSE; |
252b5132 RH |
3357 | |
3358 | for (idx = 0; idx < symcount; idx++) | |
3359 | { | |
3360 | asymbol *sym = syms[idx]; | |
dc810e39 | 3361 | unsigned int i; |
252b5132 | 3362 | |
2633a79c AM |
3363 | if (sym_is_global (abfd, sym)) |
3364 | i = num_locals + num_globals2++; | |
3365 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
3366 | i = num_locals2++; |
3367 | else | |
2633a79c | 3368 | continue; |
252b5132 RH |
3369 | new_syms[i] = sym; |
3370 | sym->udata.i = i + 1; | |
3371 | } | |
3372 | for (asect = abfd->sections; asect; asect = asect->next) | |
3373 | { | |
079e9a2f | 3374 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3375 | { |
079e9a2f | 3376 | asymbol *sym = asect->symbol; |
dc810e39 | 3377 | unsigned int i; |
252b5132 | 3378 | |
079e9a2f | 3379 | sect_syms[asect->index] = sym; |
252b5132 RH |
3380 | if (!sym_is_global (abfd, sym)) |
3381 | i = num_locals2++; | |
3382 | else | |
3383 | i = num_locals + num_globals2++; | |
3384 | new_syms[i] = sym; | |
3385 | sym->udata.i = i + 1; | |
3386 | } | |
3387 | } | |
3388 | ||
3389 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
3390 | ||
3391 | elf_num_locals (abfd) = num_locals; | |
3392 | elf_num_globals (abfd) = num_globals; | |
b34976b6 | 3393 | return TRUE; |
252b5132 RH |
3394 | } |
3395 | ||
3396 | /* Align to the maximum file alignment that could be required for any | |
3397 | ELF data structure. */ | |
3398 | ||
268b6b39 | 3399 | static inline file_ptr |
217aa764 | 3400 | align_file_position (file_ptr off, int align) |
252b5132 RH |
3401 | { |
3402 | return (off + align - 1) & ~(align - 1); | |
3403 | } | |
3404 | ||
3405 | /* Assign a file position to a section, optionally aligning to the | |
3406 | required section alignment. */ | |
3407 | ||
217aa764 AM |
3408 | file_ptr |
3409 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
3410 | file_ptr offset, | |
3411 | bfd_boolean align) | |
252b5132 | 3412 | { |
72de5009 AM |
3413 | if (align && i_shdrp->sh_addralign > 1) |
3414 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
3415 | i_shdrp->sh_offset = offset; |
3416 | if (i_shdrp->bfd_section != NULL) | |
3417 | i_shdrp->bfd_section->filepos = offset; | |
3418 | if (i_shdrp->sh_type != SHT_NOBITS) | |
3419 | offset += i_shdrp->sh_size; | |
3420 | return offset; | |
3421 | } | |
3422 | ||
3423 | /* Compute the file positions we are going to put the sections at, and | |
3424 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
3425 | is not NULL, this is being called by the ELF backend linker. */ | |
3426 | ||
b34976b6 | 3427 | bfd_boolean |
217aa764 AM |
3428 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
3429 | struct bfd_link_info *link_info) | |
252b5132 | 3430 | { |
9c5bfbb7 | 3431 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3432 | struct fake_section_arg fsargs; |
b34976b6 | 3433 | bfd_boolean failed; |
4b6c0f2f | 3434 | struct bfd_strtab_hash *strtab = NULL; |
252b5132 | 3435 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 3436 | bfd_boolean need_symtab; |
252b5132 RH |
3437 | |
3438 | if (abfd->output_has_begun) | |
b34976b6 | 3439 | return TRUE; |
252b5132 RH |
3440 | |
3441 | /* Do any elf backend specific processing first. */ | |
3442 | if (bed->elf_backend_begin_write_processing) | |
3443 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
3444 | ||
3445 | if (! prep_headers (abfd)) | |
b34976b6 | 3446 | return FALSE; |
252b5132 | 3447 | |
e6c51ed4 NC |
3448 | /* Post process the headers if necessary. */ |
3449 | if (bed->elf_backend_post_process_headers) | |
3450 | (*bed->elf_backend_post_process_headers) (abfd, link_info); | |
3451 | ||
d4730f92 BS |
3452 | fsargs.failed = FALSE; |
3453 | fsargs.link_info = link_info; | |
3454 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
3455 | if (fsargs.failed) | |
b34976b6 | 3456 | return FALSE; |
252b5132 | 3457 | |
da9f89d4 | 3458 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 3459 | return FALSE; |
252b5132 RH |
3460 | |
3461 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
3462 | need_symtab = (link_info == NULL |
3463 | && (bfd_get_symcount (abfd) > 0 | |
3464 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3465 | == HAS_RELOC))); | |
3466 | if (need_symtab) | |
252b5132 RH |
3467 | { |
3468 | /* Non-zero if doing a relocatable link. */ | |
3469 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
3470 | ||
3471 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 3472 | return FALSE; |
252b5132 RH |
3473 | } |
3474 | ||
d4730f92 | 3475 | failed = FALSE; |
1126897b | 3476 | if (link_info == NULL) |
dbb410c3 | 3477 | { |
1126897b | 3478 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 3479 | if (failed) |
b34976b6 | 3480 | return FALSE; |
dbb410c3 AM |
3481 | } |
3482 | ||
252b5132 RH |
3483 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
3484 | /* sh_name was set in prep_headers. */ | |
3485 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
3486 | shstrtab_hdr->sh_flags = 0; | |
3487 | shstrtab_hdr->sh_addr = 0; | |
2b0f7ef9 | 3488 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); |
252b5132 RH |
3489 | shstrtab_hdr->sh_entsize = 0; |
3490 | shstrtab_hdr->sh_link = 0; | |
3491 | shstrtab_hdr->sh_info = 0; | |
3492 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |
3493 | shstrtab_hdr->sh_addralign = 1; | |
3494 | ||
c84fca4d | 3495 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 3496 | return FALSE; |
252b5132 | 3497 | |
3516e984 | 3498 | if (need_symtab) |
252b5132 RH |
3499 | { |
3500 | file_ptr off; | |
3501 | Elf_Internal_Shdr *hdr; | |
3502 | ||
3503 | off = elf_tdata (abfd)->next_file_pos; | |
3504 | ||
3505 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
b34976b6 | 3506 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3507 | |
9ad5cbcf AM |
3508 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
3509 | if (hdr->sh_size != 0) | |
b34976b6 | 3510 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf | 3511 | |
252b5132 | 3512 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 3513 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 RH |
3514 | |
3515 | elf_tdata (abfd)->next_file_pos = off; | |
3516 | ||
3517 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 3518 | out. */ |
252b5132 RH |
3519 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
3520 | || ! _bfd_stringtab_emit (abfd, strtab)) | |
b34976b6 | 3521 | return FALSE; |
252b5132 RH |
3522 | _bfd_stringtab_free (strtab); |
3523 | } | |
3524 | ||
b34976b6 | 3525 | abfd->output_has_begun = TRUE; |
252b5132 | 3526 | |
b34976b6 | 3527 | return TRUE; |
252b5132 RH |
3528 | } |
3529 | ||
8ded5a0f AM |
3530 | /* Make an initial estimate of the size of the program header. If we |
3531 | get the number wrong here, we'll redo section placement. */ | |
3532 | ||
3533 | static bfd_size_type | |
3534 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
3535 | { | |
3536 | size_t segs; | |
3537 | asection *s; | |
2b05f1b7 | 3538 | const struct elf_backend_data *bed; |
8ded5a0f AM |
3539 | |
3540 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
3541 | and one for data. */ | |
3542 | segs = 2; | |
3543 | ||
3544 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3545 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3546 | { | |
3547 | /* If we have a loadable interpreter section, we need a | |
3548 | PT_INTERP segment. In this case, assume we also need a | |
3549 | PT_PHDR segment, although that may not be true for all | |
3550 | targets. */ | |
3551 | segs += 2; | |
3552 | } | |
3553 | ||
3554 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
3555 | { | |
3556 | /* We need a PT_DYNAMIC segment. */ | |
3557 | ++segs; | |
f210dcff | 3558 | } |
08a40648 | 3559 | |
ceae84aa | 3560 | if (info != NULL && info->relro) |
f210dcff L |
3561 | { |
3562 | /* We need a PT_GNU_RELRO segment. */ | |
3563 | ++segs; | |
8ded5a0f AM |
3564 | } |
3565 | ||
3566 | if (elf_tdata (abfd)->eh_frame_hdr) | |
3567 | { | |
3568 | /* We need a PT_GNU_EH_FRAME segment. */ | |
3569 | ++segs; | |
3570 | } | |
3571 | ||
2b05f1b7 | 3572 | if (elf_tdata (abfd)->stack_flags) |
8ded5a0f | 3573 | { |
2b05f1b7 L |
3574 | /* We need a PT_GNU_STACK segment. */ |
3575 | ++segs; | |
3576 | } | |
94b11780 | 3577 | |
2b05f1b7 L |
3578 | for (s = abfd->sections; s != NULL; s = s->next) |
3579 | { | |
8ded5a0f | 3580 | if ((s->flags & SEC_LOAD) != 0 |
0112cd26 | 3581 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f AM |
3582 | { |
3583 | /* We need a PT_NOTE segment. */ | |
3584 | ++segs; | |
1c5265b5 JJ |
3585 | /* Try to create just one PT_NOTE segment |
3586 | for all adjacent loadable .note* sections. | |
3587 | gABI requires that within a PT_NOTE segment | |
3588 | (and also inside of each SHT_NOTE section) | |
3589 | each note is padded to a multiple of 4 size, | |
3590 | so we check whether the sections are correctly | |
3591 | aligned. */ | |
3592 | if (s->alignment_power == 2) | |
3593 | while (s->next != NULL | |
3594 | && s->next->alignment_power == 2 | |
3595 | && (s->next->flags & SEC_LOAD) != 0 | |
3596 | && CONST_STRNEQ (s->next->name, ".note")) | |
3597 | s = s->next; | |
8ded5a0f AM |
3598 | } |
3599 | } | |
3600 | ||
3601 | for (s = abfd->sections; s != NULL; s = s->next) | |
3602 | { | |
3603 | if (s->flags & SEC_THREAD_LOCAL) | |
3604 | { | |
3605 | /* We need a PT_TLS segment. */ | |
3606 | ++segs; | |
3607 | break; | |
3608 | } | |
3609 | } | |
3610 | ||
3611 | /* Let the backend count up any program headers it might need. */ | |
2b05f1b7 | 3612 | bed = get_elf_backend_data (abfd); |
8ded5a0f AM |
3613 | if (bed->elf_backend_additional_program_headers) |
3614 | { | |
3615 | int a; | |
3616 | ||
3617 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
3618 | if (a == -1) | |
3619 | abort (); | |
3620 | segs += a; | |
3621 | } | |
3622 | ||
3623 | return segs * bed->s->sizeof_phdr; | |
3624 | } | |
3625 | ||
2ea37f1c NC |
3626 | /* Find the segment that contains the output_section of section. */ |
3627 | ||
3628 | Elf_Internal_Phdr * | |
3629 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
3630 | { | |
3631 | struct elf_segment_map *m; | |
3632 | Elf_Internal_Phdr *p; | |
3633 | ||
3634 | for (m = elf_tdata (abfd)->segment_map, | |
3635 | p = elf_tdata (abfd)->phdr; | |
3636 | m != NULL; | |
3637 | m = m->next, p++) | |
3638 | { | |
3639 | int i; | |
3640 | ||
3641 | for (i = m->count - 1; i >= 0; i--) | |
3642 | if (m->sections[i] == section) | |
3643 | return p; | |
3644 | } | |
3645 | ||
3646 | return NULL; | |
3647 | } | |
3648 | ||
252b5132 RH |
3649 | /* Create a mapping from a set of sections to a program segment. */ |
3650 | ||
217aa764 AM |
3651 | static struct elf_segment_map * |
3652 | make_mapping (bfd *abfd, | |
3653 | asection **sections, | |
3654 | unsigned int from, | |
3655 | unsigned int to, | |
3656 | bfd_boolean phdr) | |
252b5132 RH |
3657 | { |
3658 | struct elf_segment_map *m; | |
3659 | unsigned int i; | |
3660 | asection **hdrpp; | |
dc810e39 | 3661 | bfd_size_type amt; |
252b5132 | 3662 | |
dc810e39 AM |
3663 | amt = sizeof (struct elf_segment_map); |
3664 | amt += (to - from - 1) * sizeof (asection *); | |
a50b1753 | 3665 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
3666 | if (m == NULL) |
3667 | return NULL; | |
3668 | m->next = NULL; | |
3669 | m->p_type = PT_LOAD; | |
3670 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
3671 | m->sections[i - from] = *hdrpp; | |
3672 | m->count = to - from; | |
3673 | ||
3674 | if (from == 0 && phdr) | |
3675 | { | |
3676 | /* Include the headers in the first PT_LOAD segment. */ | |
3677 | m->includes_filehdr = 1; | |
3678 | m->includes_phdrs = 1; | |
3679 | } | |
3680 | ||
3681 | return m; | |
3682 | } | |
3683 | ||
229fcec5 MM |
3684 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
3685 | on failure. */ | |
3686 | ||
3687 | struct elf_segment_map * | |
3688 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
3689 | { | |
3690 | struct elf_segment_map *m; | |
3691 | ||
a50b1753 NC |
3692 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
3693 | sizeof (struct elf_segment_map)); | |
229fcec5 MM |
3694 | if (m == NULL) |
3695 | return NULL; | |
3696 | m->next = NULL; | |
3697 | m->p_type = PT_DYNAMIC; | |
3698 | m->count = 1; | |
3699 | m->sections[0] = dynsec; | |
08a40648 | 3700 | |
229fcec5 MM |
3701 | return m; |
3702 | } | |
3703 | ||
8ded5a0f | 3704 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 3705 | |
b34976b6 | 3706 | static bfd_boolean |
3dea8fca AM |
3707 | elf_modify_segment_map (bfd *abfd, |
3708 | struct bfd_link_info *info, | |
3709 | bfd_boolean remove_empty_load) | |
252b5132 | 3710 | { |
252e386e | 3711 | struct elf_segment_map **m; |
8ded5a0f | 3712 | const struct elf_backend_data *bed; |
252b5132 | 3713 | |
8ded5a0f AM |
3714 | /* The placement algorithm assumes that non allocated sections are |
3715 | not in PT_LOAD segments. We ensure this here by removing such | |
3716 | sections from the segment map. We also remove excluded | |
252e386e AM |
3717 | sections. Finally, any PT_LOAD segment without sections is |
3718 | removed. */ | |
3719 | m = &elf_tdata (abfd)->segment_map; | |
3720 | while (*m) | |
8ded5a0f AM |
3721 | { |
3722 | unsigned int i, new_count; | |
252b5132 | 3723 | |
252e386e | 3724 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 3725 | { |
252e386e AM |
3726 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
3727 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
3728 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 3729 | { |
252e386e AM |
3730 | (*m)->sections[new_count] = (*m)->sections[i]; |
3731 | new_count++; | |
8ded5a0f AM |
3732 | } |
3733 | } | |
252e386e | 3734 | (*m)->count = new_count; |
252b5132 | 3735 | |
3dea8fca | 3736 | if (remove_empty_load && (*m)->p_type == PT_LOAD && (*m)->count == 0) |
252e386e AM |
3737 | *m = (*m)->next; |
3738 | else | |
3739 | m = &(*m)->next; | |
8ded5a0f | 3740 | } |
252b5132 | 3741 | |
8ded5a0f AM |
3742 | bed = get_elf_backend_data (abfd); |
3743 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 3744 | { |
252e386e | 3745 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 3746 | return FALSE; |
252b5132 | 3747 | } |
252b5132 | 3748 | |
8ded5a0f AM |
3749 | return TRUE; |
3750 | } | |
252b5132 | 3751 | |
8ded5a0f | 3752 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 3753 | |
8ded5a0f AM |
3754 | bfd_boolean |
3755 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
3756 | { | |
3757 | unsigned int count; | |
3758 | struct elf_segment_map *m; | |
3759 | asection **sections = NULL; | |
3760 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 3761 | bfd_boolean no_user_phdrs; |
252b5132 | 3762 | |
3dea8fca | 3763 | no_user_phdrs = elf_tdata (abfd)->segment_map == NULL; |
d324f6d6 RM |
3764 | |
3765 | if (info != NULL) | |
3766 | info->user_phdrs = !no_user_phdrs; | |
3767 | ||
3dea8fca | 3768 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 3769 | { |
8ded5a0f AM |
3770 | asection *s; |
3771 | unsigned int i; | |
3772 | struct elf_segment_map *mfirst; | |
3773 | struct elf_segment_map **pm; | |
3774 | asection *last_hdr; | |
3775 | bfd_vma last_size; | |
3776 | unsigned int phdr_index; | |
3777 | bfd_vma maxpagesize; | |
3778 | asection **hdrpp; | |
3779 | bfd_boolean phdr_in_segment = TRUE; | |
3780 | bfd_boolean writable; | |
3781 | int tls_count = 0; | |
3782 | asection *first_tls = NULL; | |
3783 | asection *dynsec, *eh_frame_hdr; | |
3784 | bfd_size_type amt; | |
8d06853e | 3785 | bfd_vma addr_mask, wrap_to = 0; |
252b5132 | 3786 | |
8ded5a0f | 3787 | /* Select the allocated sections, and sort them. */ |
252b5132 | 3788 | |
a50b1753 NC |
3789 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
3790 | sizeof (asection *)); | |
8ded5a0f | 3791 | if (sections == NULL) |
252b5132 | 3792 | goto error_return; |
252b5132 | 3793 | |
8d06853e AM |
3794 | /* Calculate top address, avoiding undefined behaviour of shift |
3795 | left operator when shift count is equal to size of type | |
3796 | being shifted. */ | |
3797 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
3798 | addr_mask = (addr_mask << 1) + 1; | |
3799 | ||
8ded5a0f AM |
3800 | i = 0; |
3801 | for (s = abfd->sections; s != NULL; s = s->next) | |
3802 | { | |
3803 | if ((s->flags & SEC_ALLOC) != 0) | |
3804 | { | |
3805 | sections[i] = s; | |
3806 | ++i; | |
8d06853e AM |
3807 | /* A wrapping section potentially clashes with header. */ |
3808 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
3809 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
3810 | } |
3811 | } | |
3812 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
3813 | count = i; | |
252b5132 | 3814 | |
8ded5a0f | 3815 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 3816 | |
8ded5a0f | 3817 | /* Build the mapping. */ |
252b5132 | 3818 | |
8ded5a0f AM |
3819 | mfirst = NULL; |
3820 | pm = &mfirst; | |
252b5132 | 3821 | |
8ded5a0f AM |
3822 | /* If we have a .interp section, then create a PT_PHDR segment for |
3823 | the program headers and a PT_INTERP segment for the .interp | |
3824 | section. */ | |
3825 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3826 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3827 | { | |
3828 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 3829 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3830 | if (m == NULL) |
3831 | goto error_return; | |
3832 | m->next = NULL; | |
3833 | m->p_type = PT_PHDR; | |
3834 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
3835 | m->p_flags = PF_R | PF_X; | |
3836 | m->p_flags_valid = 1; | |
3837 | m->includes_phdrs = 1; | |
252b5132 | 3838 | |
8ded5a0f AM |
3839 | *pm = m; |
3840 | pm = &m->next; | |
252b5132 | 3841 | |
8ded5a0f | 3842 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 3843 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
3844 | if (m == NULL) |
3845 | goto error_return; | |
3846 | m->next = NULL; | |
3847 | m->p_type = PT_INTERP; | |
3848 | m->count = 1; | |
3849 | m->sections[0] = s; | |
3850 | ||
3851 | *pm = m; | |
3852 | pm = &m->next; | |
252b5132 | 3853 | } |
8ded5a0f AM |
3854 | |
3855 | /* Look through the sections. We put sections in the same program | |
3856 | segment when the start of the second section can be placed within | |
3857 | a few bytes of the end of the first section. */ | |
3858 | last_hdr = NULL; | |
3859 | last_size = 0; | |
3860 | phdr_index = 0; | |
3861 | maxpagesize = bed->maxpagesize; | |
3862 | writable = FALSE; | |
3863 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
3864 | if (dynsec != NULL | |
3865 | && (dynsec->flags & SEC_LOAD) == 0) | |
3866 | dynsec = NULL; | |
3867 | ||
3868 | /* Deal with -Ttext or something similar such that the first section | |
3869 | is not adjacent to the program headers. This is an | |
3870 | approximation, since at this point we don't know exactly how many | |
3871 | program headers we will need. */ | |
3872 | if (count > 0) | |
252b5132 | 3873 | { |
8ded5a0f AM |
3874 | bfd_size_type phdr_size = elf_tdata (abfd)->program_header_size; |
3875 | ||
62d7a5f6 | 3876 | if (phdr_size == (bfd_size_type) -1) |
8ded5a0f | 3877 | phdr_size = get_program_header_size (abfd, info); |
d2bcb0d1 | 3878 | phdr_size += bed->s->sizeof_ehdr; |
8ded5a0f | 3879 | if ((abfd->flags & D_PAGED) == 0 |
8d06853e AM |
3880 | || (sections[0]->lma & addr_mask) < phdr_size |
3881 | || ((sections[0]->lma & addr_mask) % maxpagesize | |
3882 | < phdr_size % maxpagesize) | |
3883 | || (sections[0]->lma & addr_mask & -maxpagesize) < wrap_to) | |
8ded5a0f | 3884 | phdr_in_segment = FALSE; |
252b5132 RH |
3885 | } |
3886 | ||
8ded5a0f | 3887 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 3888 | { |
8ded5a0f AM |
3889 | asection *hdr; |
3890 | bfd_boolean new_segment; | |
3891 | ||
3892 | hdr = *hdrpp; | |
3893 | ||
3894 | /* See if this section and the last one will fit in the same | |
3895 | segment. */ | |
3896 | ||
3897 | if (last_hdr == NULL) | |
3898 | { | |
3899 | /* If we don't have a segment yet, then we don't need a new | |
3900 | one (we build the last one after this loop). */ | |
3901 | new_segment = FALSE; | |
3902 | } | |
3903 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
3904 | { | |
3905 | /* If this section has a different relation between the | |
3906 | virtual address and the load address, then we need a new | |
3907 | segment. */ | |
3908 | new_segment = TRUE; | |
3909 | } | |
b5599592 AM |
3910 | else if (hdr->lma < last_hdr->lma + last_size |
3911 | || last_hdr->lma + last_size < last_hdr->lma) | |
3912 | { | |
3913 | /* If this section has a load address that makes it overlap | |
3914 | the previous section, then we need a new segment. */ | |
3915 | new_segment = TRUE; | |
3916 | } | |
39948a60 NC |
3917 | /* In the next test we have to be careful when last_hdr->lma is close |
3918 | to the end of the address space. If the aligned address wraps | |
3919 | around to the start of the address space, then there are no more | |
3920 | pages left in memory and it is OK to assume that the current | |
3921 | section can be included in the current segment. */ | |
3922 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
3923 | > last_hdr->lma) | |
3924 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) + maxpagesize | |
4ff73856 | 3925 | <= hdr->lma)) |
8ded5a0f AM |
3926 | { |
3927 | /* If putting this section in this segment would force us to | |
3928 | skip a page in the segment, then we need a new segment. */ | |
3929 | new_segment = TRUE; | |
3930 | } | |
3931 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
3932 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) | |
3933 | { | |
3934 | /* We don't want to put a loadable section after a | |
3935 | nonloadable section in the same segment. | |
3936 | Consider .tbss sections as loadable for this purpose. */ | |
3937 | new_segment = TRUE; | |
3938 | } | |
3939 | else if ((abfd->flags & D_PAGED) == 0) | |
3940 | { | |
3941 | /* If the file is not demand paged, which means that we | |
3942 | don't require the sections to be correctly aligned in the | |
3943 | file, then there is no other reason for a new segment. */ | |
3944 | new_segment = FALSE; | |
3945 | } | |
3946 | else if (! writable | |
3947 | && (hdr->flags & SEC_READONLY) == 0 | |
8d06853e AM |
3948 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) |
3949 | != (hdr->lma & -maxpagesize))) | |
8ded5a0f AM |
3950 | { |
3951 | /* We don't want to put a writable section in a read only | |
3952 | segment, unless they are on the same page in memory | |
3953 | anyhow. We already know that the last section does not | |
3954 | bring us past the current section on the page, so the | |
3955 | only case in which the new section is not on the same | |
3956 | page as the previous section is when the previous section | |
3957 | ends precisely on a page boundary. */ | |
3958 | new_segment = TRUE; | |
3959 | } | |
3960 | else | |
3961 | { | |
3962 | /* Otherwise, we can use the same segment. */ | |
3963 | new_segment = FALSE; | |
3964 | } | |
3965 | ||
2889e75b | 3966 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
3967 | if (last_hdr != NULL |
3968 | && info != NULL | |
3969 | && info->callbacks->override_segment_assignment != NULL) | |
3970 | new_segment | |
3971 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
3972 | last_hdr, | |
3973 | new_segment); | |
2889e75b | 3974 | |
8ded5a0f AM |
3975 | if (! new_segment) |
3976 | { | |
3977 | if ((hdr->flags & SEC_READONLY) == 0) | |
3978 | writable = TRUE; | |
3979 | last_hdr = hdr; | |
3980 | /* .tbss sections effectively have zero size. */ | |
3981 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
3982 | != SEC_THREAD_LOCAL) | |
3983 | last_size = hdr->size; | |
3984 | else | |
3985 | last_size = 0; | |
3986 | continue; | |
3987 | } | |
3988 | ||
3989 | /* We need a new program segment. We must create a new program | |
3990 | header holding all the sections from phdr_index until hdr. */ | |
3991 | ||
3992 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
3993 | if (m == NULL) | |
3994 | goto error_return; | |
3995 | ||
3996 | *pm = m; | |
3997 | pm = &m->next; | |
3998 | ||
252b5132 | 3999 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4000 | writable = TRUE; |
8ded5a0f AM |
4001 | else |
4002 | writable = FALSE; | |
4003 | ||
baaff79e JJ |
4004 | last_hdr = hdr; |
4005 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 4006 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 4007 | last_size = hdr->size; |
baaff79e JJ |
4008 | else |
4009 | last_size = 0; | |
8ded5a0f AM |
4010 | phdr_index = i; |
4011 | phdr_in_segment = FALSE; | |
252b5132 RH |
4012 | } |
4013 | ||
86b2281f AM |
4014 | /* Create a final PT_LOAD program segment, but not if it's just |
4015 | for .tbss. */ | |
4016 | if (last_hdr != NULL | |
4017 | && (i - phdr_index != 1 | |
4018 | || ((last_hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
4019 | != SEC_THREAD_LOCAL))) | |
8ded5a0f AM |
4020 | { |
4021 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
4022 | if (m == NULL) | |
4023 | goto error_return; | |
252b5132 | 4024 | |
8ded5a0f AM |
4025 | *pm = m; |
4026 | pm = &m->next; | |
4027 | } | |
252b5132 | 4028 | |
8ded5a0f AM |
4029 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4030 | if (dynsec != NULL) | |
4031 | { | |
4032 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4033 | if (m == NULL) | |
4034 | goto error_return; | |
4035 | *pm = m; | |
4036 | pm = &m->next; | |
4037 | } | |
252b5132 | 4038 | |
1c5265b5 JJ |
4039 | /* For each batch of consecutive loadable .note sections, |
4040 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, | |
4041 | because if we link together nonloadable .note sections and | |
4042 | loadable .note sections, we will generate two .note sections | |
4043 | in the output file. FIXME: Using names for section types is | |
4044 | bogus anyhow. */ | |
8ded5a0f AM |
4045 | for (s = abfd->sections; s != NULL; s = s->next) |
4046 | { | |
4047 | if ((s->flags & SEC_LOAD) != 0 | |
0112cd26 | 4048 | && CONST_STRNEQ (s->name, ".note")) |
8ded5a0f | 4049 | { |
1c5265b5 | 4050 | asection *s2; |
91d6fa6a NC |
4051 | |
4052 | count = 1; | |
8ded5a0f | 4053 | amt = sizeof (struct elf_segment_map); |
1c5265b5 JJ |
4054 | if (s->alignment_power == 2) |
4055 | for (s2 = s; s2->next != NULL; s2 = s2->next) | |
55b581a6 JJ |
4056 | { |
4057 | if (s2->next->alignment_power == 2 | |
4058 | && (s2->next->flags & SEC_LOAD) != 0 | |
4059 | && CONST_STRNEQ (s2->next->name, ".note") | |
8d06853e AM |
4060 | && align_power (s2->lma + s2->size, 2) |
4061 | == s2->next->lma) | |
55b581a6 JJ |
4062 | count++; |
4063 | else | |
4064 | break; | |
4065 | } | |
1c5265b5 | 4066 | amt += (count - 1) * sizeof (asection *); |
a50b1753 | 4067 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4068 | if (m == NULL) |
4069 | goto error_return; | |
4070 | m->next = NULL; | |
4071 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4072 | m->count = count; |
4073 | while (count > 1) | |
4074 | { | |
4075 | m->sections[m->count - count--] = s; | |
4076 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4077 | s = s->next; | |
4078 | } | |
4079 | m->sections[m->count - 1] = s; | |
4080 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4081 | *pm = m; |
4082 | pm = &m->next; | |
4083 | } | |
4084 | if (s->flags & SEC_THREAD_LOCAL) | |
4085 | { | |
4086 | if (! tls_count) | |
4087 | first_tls = s; | |
4088 | tls_count++; | |
4089 | } | |
4090 | } | |
252b5132 | 4091 | |
8ded5a0f AM |
4092 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
4093 | if (tls_count > 0) | |
4094 | { | |
8ded5a0f AM |
4095 | amt = sizeof (struct elf_segment_map); |
4096 | amt += (tls_count - 1) * sizeof (asection *); | |
a50b1753 | 4097 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4098 | if (m == NULL) |
4099 | goto error_return; | |
4100 | m->next = NULL; | |
4101 | m->p_type = PT_TLS; | |
4102 | m->count = tls_count; | |
4103 | /* Mandated PF_R. */ | |
4104 | m->p_flags = PF_R; | |
4105 | m->p_flags_valid = 1; | |
91d6fa6a | 4106 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f AM |
4107 | { |
4108 | BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL); | |
4109 | m->sections[i] = first_tls; | |
4110 | first_tls = first_tls->next; | |
4111 | } | |
252b5132 | 4112 | |
8ded5a0f AM |
4113 | *pm = m; |
4114 | pm = &m->next; | |
4115 | } | |
252b5132 | 4116 | |
8ded5a0f AM |
4117 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
4118 | segment. */ | |
4119 | eh_frame_hdr = elf_tdata (abfd)->eh_frame_hdr; | |
4120 | if (eh_frame_hdr != NULL | |
4121 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 4122 | { |
dc810e39 | 4123 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4124 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4125 | if (m == NULL) |
4126 | goto error_return; | |
4127 | m->next = NULL; | |
8ded5a0f | 4128 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 4129 | m->count = 1; |
8ded5a0f | 4130 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
4131 | |
4132 | *pm = m; | |
4133 | pm = &m->next; | |
4134 | } | |
13ae64f3 | 4135 | |
8ded5a0f | 4136 | if (elf_tdata (abfd)->stack_flags) |
13ae64f3 | 4137 | { |
8ded5a0f | 4138 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4139 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4140 | if (m == NULL) |
4141 | goto error_return; | |
4142 | m->next = NULL; | |
2b05f1b7 | 4143 | m->p_type = PT_GNU_STACK; |
8ded5a0f | 4144 | m->p_flags = elf_tdata (abfd)->stack_flags; |
04c3a755 | 4145 | m->p_align = bed->stack_align; |
8ded5a0f | 4146 | m->p_flags_valid = 1; |
04c3a755 NS |
4147 | m->p_align_valid = m->p_align != 0; |
4148 | if (info->stacksize > 0) | |
4149 | { | |
4150 | m->p_size = info->stacksize; | |
4151 | m->p_size_valid = 1; | |
4152 | } | |
252b5132 | 4153 | |
8ded5a0f AM |
4154 | *pm = m; |
4155 | pm = &m->next; | |
4156 | } | |
65765700 | 4157 | |
ceae84aa | 4158 | if (info != NULL && info->relro) |
8ded5a0f | 4159 | { |
f210dcff L |
4160 | for (m = mfirst; m != NULL; m = m->next) |
4161 | { | |
3832a4d8 AM |
4162 | if (m->p_type == PT_LOAD |
4163 | && m->count != 0 | |
4164 | && m->sections[0]->vma >= info->relro_start | |
4165 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 4166 | { |
3832a4d8 AM |
4167 | i = m->count; |
4168 | while (--i != (unsigned) -1) | |
4169 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4170 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
4171 | break; | |
4172 | ||
4173 | if (i == (unsigned) -1) | |
4174 | continue; | |
65765700 | 4175 | |
3832a4d8 AM |
4176 | if (m->sections[i]->vma + m->sections[i]->size |
4177 | >= info->relro_end) | |
f210dcff L |
4178 | break; |
4179 | } | |
be01b344 | 4180 | } |
f210dcff L |
4181 | |
4182 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
4183 | if (m != NULL) | |
4184 | { | |
4185 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4186 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
4187 | if (m == NULL) |
4188 | goto error_return; | |
4189 | m->next = NULL; | |
4190 | m->p_type = PT_GNU_RELRO; | |
4191 | m->p_flags = PF_R; | |
4192 | m->p_flags_valid = 1; | |
4193 | ||
4194 | *pm = m; | |
4195 | pm = &m->next; | |
4196 | } | |
8ded5a0f | 4197 | } |
9ee5e499 | 4198 | |
8ded5a0f AM |
4199 | free (sections); |
4200 | elf_tdata (abfd)->segment_map = mfirst; | |
9ee5e499 JJ |
4201 | } |
4202 | ||
3dea8fca | 4203 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 4204 | return FALSE; |
8c37241b | 4205 | |
8ded5a0f AM |
4206 | for (count = 0, m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
4207 | ++count; | |
4208 | elf_tdata (abfd)->program_header_size = count * bed->s->sizeof_phdr; | |
252b5132 | 4209 | |
b34976b6 | 4210 | return TRUE; |
252b5132 RH |
4211 | |
4212 | error_return: | |
4213 | if (sections != NULL) | |
4214 | free (sections); | |
b34976b6 | 4215 | return FALSE; |
252b5132 RH |
4216 | } |
4217 | ||
4218 | /* Sort sections by address. */ | |
4219 | ||
4220 | static int | |
217aa764 | 4221 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
4222 | { |
4223 | const asection *sec1 = *(const asection **) arg1; | |
4224 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 4225 | bfd_size_type size1, size2; |
252b5132 RH |
4226 | |
4227 | /* Sort by LMA first, since this is the address used to | |
4228 | place the section into a segment. */ | |
4229 | if (sec1->lma < sec2->lma) | |
4230 | return -1; | |
4231 | else if (sec1->lma > sec2->lma) | |
4232 | return 1; | |
4233 | ||
4234 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
4235 | the same, and this will do nothing. */ | |
4236 | if (sec1->vma < sec2->vma) | |
4237 | return -1; | |
4238 | else if (sec1->vma > sec2->vma) | |
4239 | return 1; | |
4240 | ||
4241 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
4242 | ||
07c6e936 | 4243 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
4244 | |
4245 | if (TOEND (sec1)) | |
4246 | { | |
4247 | if (TOEND (sec2)) | |
00a7cdc5 NC |
4248 | { |
4249 | /* If the indicies are the same, do not return 0 | |
4250 | here, but continue to try the next comparison. */ | |
4251 | if (sec1->target_index - sec2->target_index != 0) | |
4252 | return sec1->target_index - sec2->target_index; | |
4253 | } | |
252b5132 RH |
4254 | else |
4255 | return 1; | |
4256 | } | |
00a7cdc5 | 4257 | else if (TOEND (sec2)) |
252b5132 RH |
4258 | return -1; |
4259 | ||
4260 | #undef TOEND | |
4261 | ||
00a7cdc5 NC |
4262 | /* Sort by size, to put zero sized sections |
4263 | before others at the same address. */ | |
252b5132 | 4264 | |
eea6121a AM |
4265 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
4266 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
4267 | |
4268 | if (size1 < size2) | |
252b5132 | 4269 | return -1; |
eecdbe52 | 4270 | if (size1 > size2) |
252b5132 RH |
4271 | return 1; |
4272 | ||
4273 | return sec1->target_index - sec2->target_index; | |
4274 | } | |
4275 | ||
340b6d91 AC |
4276 | /* Ian Lance Taylor writes: |
4277 | ||
4278 | We shouldn't be using % with a negative signed number. That's just | |
4279 | not good. We have to make sure either that the number is not | |
4280 | negative, or that the number has an unsigned type. When the types | |
4281 | are all the same size they wind up as unsigned. When file_ptr is a | |
4282 | larger signed type, the arithmetic winds up as signed long long, | |
4283 | which is wrong. | |
4284 | ||
4285 | What we're trying to say here is something like ``increase OFF by | |
4286 | the least amount that will cause it to be equal to the VMA modulo | |
4287 | the page size.'' */ | |
4288 | /* In other words, something like: | |
4289 | ||
4290 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
4291 | off_offset = off % bed->maxpagesize; | |
4292 | if (vma_offset < off_offset) | |
4293 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
4294 | else | |
4295 | adjustment = vma_offset - off_offset; | |
08a40648 | 4296 | |
340b6d91 AC |
4297 | which can can be collapsed into the expression below. */ |
4298 | ||
4299 | static file_ptr | |
4300 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
4301 | { | |
4302 | return ((vma - off) % maxpagesize); | |
4303 | } | |
4304 | ||
6d33f217 L |
4305 | static void |
4306 | print_segment_map (const struct elf_segment_map *m) | |
4307 | { | |
4308 | unsigned int j; | |
4309 | const char *pt = get_segment_type (m->p_type); | |
4310 | char buf[32]; | |
4311 | ||
4312 | if (pt == NULL) | |
4313 | { | |
4314 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
4315 | sprintf (buf, "LOPROC+%7.7x", | |
4316 | (unsigned int) (m->p_type - PT_LOPROC)); | |
4317 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
4318 | sprintf (buf, "LOOS+%7.7x", | |
4319 | (unsigned int) (m->p_type - PT_LOOS)); | |
4320 | else | |
4321 | snprintf (buf, sizeof (buf), "%8.8x", | |
4322 | (unsigned int) m->p_type); | |
4323 | pt = buf; | |
4324 | } | |
4a97a0e5 | 4325 | fflush (stdout); |
6d33f217 L |
4326 | fprintf (stderr, "%s:", pt); |
4327 | for (j = 0; j < m->count; j++) | |
4328 | fprintf (stderr, " %s", m->sections [j]->name); | |
4329 | putc ('\n',stderr); | |
4a97a0e5 | 4330 | fflush (stderr); |
6d33f217 L |
4331 | } |
4332 | ||
32812159 AM |
4333 | static bfd_boolean |
4334 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
4335 | { | |
4336 | void *buf; | |
4337 | bfd_boolean ret; | |
4338 | ||
4339 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
4340 | return FALSE; | |
4341 | buf = bfd_zmalloc (len); | |
4342 | if (buf == NULL) | |
4343 | return FALSE; | |
4344 | ret = bfd_bwrite (buf, len, abfd) == len; | |
4345 | free (buf); | |
4346 | return ret; | |
4347 | } | |
4348 | ||
252b5132 RH |
4349 | /* Assign file positions to the sections based on the mapping from |
4350 | sections to segments. This function also sets up some fields in | |
f3520d2f | 4351 | the file header. */ |
252b5132 | 4352 | |
b34976b6 | 4353 | static bfd_boolean |
f3520d2f AM |
4354 | assign_file_positions_for_load_sections (bfd *abfd, |
4355 | struct bfd_link_info *link_info) | |
252b5132 RH |
4356 | { |
4357 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 4358 | struct elf_segment_map *m; |
252b5132 | 4359 | Elf_Internal_Phdr *phdrs; |
252b5132 | 4360 | Elf_Internal_Phdr *p; |
02bf8d82 | 4361 | file_ptr off; |
3f570048 | 4362 | bfd_size_type maxpagesize; |
f3520d2f | 4363 | unsigned int alloc; |
0920dee7 | 4364 | unsigned int i, j; |
2b0bc088 | 4365 | bfd_vma header_pad = 0; |
252b5132 | 4366 | |
e36284ab | 4367 | if (link_info == NULL |
ceae84aa | 4368 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 4369 | return FALSE; |
252b5132 | 4370 | |
8ded5a0f | 4371 | alloc = 0; |
252b5132 | 4372 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
2b0bc088 NC |
4373 | { |
4374 | ++alloc; | |
4375 | if (m->header_size) | |
4376 | header_pad = m->header_size; | |
4377 | } | |
252b5132 | 4378 | |
82f2dbf7 NC |
4379 | if (alloc) |
4380 | { | |
4381 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
4382 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
4383 | } | |
4384 | else | |
4385 | { | |
4386 | /* PR binutils/12467. */ | |
4387 | elf_elfheader (abfd)->e_phoff = 0; | |
4388 | elf_elfheader (abfd)->e_phentsize = 0; | |
4389 | } | |
d324f6d6 | 4390 | |
8ded5a0f | 4391 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 4392 | |
62d7a5f6 | 4393 | if (elf_tdata (abfd)->program_header_size == (bfd_size_type) -1) |
8ded5a0f AM |
4394 | elf_tdata (abfd)->program_header_size = alloc * bed->s->sizeof_phdr; |
4395 | else | |
4396 | BFD_ASSERT (elf_tdata (abfd)->program_header_size | |
59e0647f | 4397 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
4398 | |
4399 | if (alloc == 0) | |
f3520d2f | 4400 | { |
8ded5a0f AM |
4401 | elf_tdata (abfd)->next_file_pos = bed->s->sizeof_ehdr; |
4402 | return TRUE; | |
f3520d2f | 4403 | } |
252b5132 | 4404 | |
57268894 HPN |
4405 | /* We're writing the size in elf_tdata (abfd)->program_header_size, |
4406 | see assign_file_positions_except_relocs, so make sure we have | |
4407 | that amount allocated, with trailing space cleared. | |
4408 | The variable alloc contains the computed need, while elf_tdata | |
4409 | (abfd)->program_header_size contains the size used for the | |
4410 | layout. | |
4411 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
4412 | where the layout is forced to according to a larger size in the | |
4413 | last iterations for the testcase ld-elf/header. */ | |
4414 | BFD_ASSERT (elf_tdata (abfd)->program_header_size % bed->s->sizeof_phdr | |
4415 | == 0); | |
a50b1753 NC |
4416 | phdrs = (Elf_Internal_Phdr *) |
4417 | bfd_zalloc2 (abfd, | |
4418 | (elf_tdata (abfd)->program_header_size / bed->s->sizeof_phdr), | |
4419 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 4420 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 4421 | if (phdrs == NULL) |
b34976b6 | 4422 | return FALSE; |
252b5132 | 4423 | |
3f570048 AM |
4424 | maxpagesize = 1; |
4425 | if ((abfd->flags & D_PAGED) != 0) | |
4426 | maxpagesize = bed->maxpagesize; | |
4427 | ||
252b5132 RH |
4428 | off = bed->s->sizeof_ehdr; |
4429 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4430 | if (header_pad < (bfd_vma) off) |
4431 | header_pad = 0; | |
4432 | else | |
4433 | header_pad -= off; | |
4434 | off += header_pad; | |
252b5132 | 4435 | |
0920dee7 | 4436 | for (m = elf_tdata (abfd)->segment_map, p = phdrs, j = 0; |
252b5132 | 4437 | m != NULL; |
0920dee7 | 4438 | m = m->next, p++, j++) |
252b5132 | 4439 | { |
252b5132 | 4440 | asection **secpp; |
bf988460 AM |
4441 | bfd_vma off_adjust; |
4442 | bfd_boolean no_contents; | |
252b5132 RH |
4443 | |
4444 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 4445 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
4446 | not be done to the PT_NOTE section of a corefile, which may |
4447 | contain several pseudo-sections artificially created by bfd. | |
4448 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
4449 | if (m->count > 1 |
4450 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 4451 | && m->p_type == PT_NOTE)) |
252b5132 RH |
4452 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
4453 | elf_sort_sections); | |
4454 | ||
b301b248 AM |
4455 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
4456 | number of sections with contents contributing to both p_filesz | |
4457 | and p_memsz, followed by a number of sections with no contents | |
4458 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 4459 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 4460 | p->p_type = m->p_type; |
28a7f3e7 | 4461 | p->p_flags = m->p_flags; |
252b5132 | 4462 | |
3f570048 AM |
4463 | if (m->count == 0) |
4464 | p->p_vaddr = 0; | |
4465 | else | |
3271a814 | 4466 | p->p_vaddr = m->sections[0]->vma - m->p_vaddr_offset; |
3f570048 AM |
4467 | |
4468 | if (m->p_paddr_valid) | |
4469 | p->p_paddr = m->p_paddr; | |
4470 | else if (m->count == 0) | |
4471 | p->p_paddr = 0; | |
4472 | else | |
08a40648 | 4473 | p->p_paddr = m->sections[0]->lma - m->p_vaddr_offset; |
3f570048 AM |
4474 | |
4475 | if (p->p_type == PT_LOAD | |
4476 | && (abfd->flags & D_PAGED) != 0) | |
4477 | { | |
4478 | /* p_align in demand paged PT_LOAD segments effectively stores | |
4479 | the maximum page size. When copying an executable with | |
4480 | objcopy, we set m->p_align from the input file. Use this | |
4481 | value for maxpagesize rather than bed->maxpagesize, which | |
4482 | may be different. Note that we use maxpagesize for PT_TLS | |
4483 | segment alignment later in this function, so we are relying | |
4484 | on at least one PT_LOAD segment appearing before a PT_TLS | |
4485 | segment. */ | |
4486 | if (m->p_align_valid) | |
4487 | maxpagesize = m->p_align; | |
4488 | ||
4489 | p->p_align = maxpagesize; | |
4490 | } | |
3271a814 NS |
4491 | else if (m->p_align_valid) |
4492 | p->p_align = m->p_align; | |
e970b90a DJ |
4493 | else if (m->count == 0) |
4494 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
4495 | else |
4496 | p->p_align = 0; | |
4497 | ||
bf988460 AM |
4498 | no_contents = FALSE; |
4499 | off_adjust = 0; | |
252b5132 | 4500 | if (p->p_type == PT_LOAD |
b301b248 | 4501 | && m->count > 0) |
252b5132 | 4502 | { |
b301b248 | 4503 | bfd_size_type align; |
a49e53ed | 4504 | unsigned int align_power = 0; |
b301b248 | 4505 | |
3271a814 NS |
4506 | if (m->p_align_valid) |
4507 | align = p->p_align; | |
4508 | else | |
252b5132 | 4509 | { |
3271a814 NS |
4510 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4511 | { | |
4512 | unsigned int secalign; | |
08a40648 | 4513 | |
3271a814 NS |
4514 | secalign = bfd_get_section_alignment (abfd, *secpp); |
4515 | if (secalign > align_power) | |
4516 | align_power = secalign; | |
4517 | } | |
4518 | align = (bfd_size_type) 1 << align_power; | |
4519 | if (align < maxpagesize) | |
4520 | align = maxpagesize; | |
b301b248 | 4521 | } |
252b5132 | 4522 | |
02bf8d82 AM |
4523 | for (i = 0; i < m->count; i++) |
4524 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
4525 | /* If we aren't making room for this section, then | |
4526 | it must be SHT_NOBITS regardless of what we've | |
4527 | set via struct bfd_elf_special_section. */ | |
4528 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
4529 | ||
bf988460 | 4530 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
4531 | sections. */ |
4532 | no_contents = TRUE; | |
4533 | for (i = 0; i < m->count; i++) | |
4534 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
4535 | { | |
4536 | no_contents = FALSE; | |
4537 | break; | |
4538 | } | |
bf988460 | 4539 | |
85cfcbfb | 4540 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
bf988460 AM |
4541 | off += off_adjust; |
4542 | if (no_contents) | |
4543 | { | |
4544 | /* We shouldn't need to align the segment on disk since | |
4545 | the segment doesn't need file space, but the gABI | |
4546 | arguably requires the alignment and glibc ld.so | |
4547 | checks it. So to comply with the alignment | |
4548 | requirement but not waste file space, we adjust | |
4549 | p_offset for just this segment. (OFF_ADJUST is | |
4550 | subtracted from OFF later.) This may put p_offset | |
4551 | past the end of file, but that shouldn't matter. */ | |
4552 | } | |
4553 | else | |
4554 | off_adjust = 0; | |
252b5132 | 4555 | } |
b1a6d0b1 NC |
4556 | /* Make sure the .dynamic section is the first section in the |
4557 | PT_DYNAMIC segment. */ | |
4558 | else if (p->p_type == PT_DYNAMIC | |
4559 | && m->count > 1 | |
4560 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
4561 | { | |
4562 | _bfd_error_handler | |
b301b248 AM |
4563 | (_("%B: The first section in the PT_DYNAMIC segment is not the .dynamic section"), |
4564 | abfd); | |
b1a6d0b1 NC |
4565 | bfd_set_error (bfd_error_bad_value); |
4566 | return FALSE; | |
4567 | } | |
3f001e84 JK |
4568 | /* Set the note section type to SHT_NOTE. */ |
4569 | else if (p->p_type == PT_NOTE) | |
4570 | for (i = 0; i < m->count; i++) | |
4571 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 4572 | |
252b5132 RH |
4573 | p->p_offset = 0; |
4574 | p->p_filesz = 0; | |
4575 | p->p_memsz = 0; | |
4576 | ||
4577 | if (m->includes_filehdr) | |
4578 | { | |
bf988460 | 4579 | if (!m->p_flags_valid) |
252b5132 | 4580 | p->p_flags |= PF_R; |
252b5132 RH |
4581 | p->p_filesz = bed->s->sizeof_ehdr; |
4582 | p->p_memsz = bed->s->sizeof_ehdr; | |
4583 | if (m->count > 0) | |
4584 | { | |
252b5132 RH |
4585 | if (p->p_vaddr < (bfd_vma) off) |
4586 | { | |
caf47ea6 | 4587 | (*_bfd_error_handler) |
b301b248 AM |
4588 | (_("%B: Not enough room for program headers, try linking with -N"), |
4589 | abfd); | |
252b5132 | 4590 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4591 | return FALSE; |
252b5132 RH |
4592 | } |
4593 | ||
4594 | p->p_vaddr -= off; | |
bf988460 | 4595 | if (!m->p_paddr_valid) |
252b5132 RH |
4596 | p->p_paddr -= off; |
4597 | } | |
252b5132 RH |
4598 | } |
4599 | ||
4600 | if (m->includes_phdrs) | |
4601 | { | |
bf988460 | 4602 | if (!m->p_flags_valid) |
252b5132 RH |
4603 | p->p_flags |= PF_R; |
4604 | ||
f3520d2f | 4605 | if (!m->includes_filehdr) |
252b5132 RH |
4606 | { |
4607 | p->p_offset = bed->s->sizeof_ehdr; | |
4608 | ||
4609 | if (m->count > 0) | |
4610 | { | |
252b5132 | 4611 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 4612 | if (!m->p_paddr_valid) |
252b5132 RH |
4613 | p->p_paddr -= off - p->p_offset; |
4614 | } | |
252b5132 RH |
4615 | } |
4616 | ||
4617 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
4618 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
4619 | if (m->count) |
4620 | { | |
4621 | p->p_filesz += header_pad; | |
4622 | p->p_memsz += header_pad; | |
4623 | } | |
252b5132 RH |
4624 | } |
4625 | ||
4626 | if (p->p_type == PT_LOAD | |
4627 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
4628 | { | |
bf988460 | 4629 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 4630 | p->p_offset = off; |
252b5132 RH |
4631 | else |
4632 | { | |
4633 | file_ptr adjust; | |
4634 | ||
4635 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
4636 | if (!no_contents) |
4637 | p->p_filesz += adjust; | |
252b5132 RH |
4638 | p->p_memsz += adjust; |
4639 | } | |
4640 | } | |
4641 | ||
1ea63fd2 AM |
4642 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
4643 | maps. Set filepos for sections in PT_LOAD segments, and in | |
4644 | core files, for sections in PT_NOTE segments. | |
4645 | assign_file_positions_for_non_load_sections will set filepos | |
4646 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
4647 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4648 | { | |
4649 | asection *sec; | |
252b5132 | 4650 | bfd_size_type align; |
627b32bc | 4651 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
4652 | |
4653 | sec = *secpp; | |
02bf8d82 | 4654 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 4655 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 4656 | |
88967714 AM |
4657 | if ((p->p_type == PT_LOAD |
4658 | || p->p_type == PT_TLS) | |
4659 | && (this_hdr->sh_type != SHT_NOBITS | |
4660 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
4661 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
4662 | || p->p_type == PT_TLS)))) | |
252b5132 | 4663 | { |
b5599592 AM |
4664 | bfd_vma p_start = p->p_paddr; |
4665 | bfd_vma p_end = p_start + p->p_memsz; | |
4666 | bfd_vma s_start = sec->lma; | |
4667 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 4668 | |
a2d1e028 L |
4669 | if (adjust != 0 |
4670 | && (s_start < p_end | |
4671 | || p_end < p_start)) | |
252b5132 | 4672 | { |
88967714 | 4673 | (*_bfd_error_handler) |
b5599592 AM |
4674 | (_("%B: section %A lma %#lx adjusted to %#lx"), abfd, sec, |
4675 | (unsigned long) s_start, (unsigned long) p_end); | |
88967714 | 4676 | adjust = 0; |
b5599592 | 4677 | sec->lma = p_end; |
1cfb7d1e | 4678 | } |
3ac9b6c9 | 4679 | p->p_memsz += adjust; |
1cfb7d1e | 4680 | |
88967714 AM |
4681 | if (this_hdr->sh_type != SHT_NOBITS) |
4682 | { | |
32812159 AM |
4683 | if (p->p_filesz + adjust < p->p_memsz) |
4684 | { | |
4685 | /* We have a PROGBITS section following NOBITS ones. | |
4686 | Allocate file space for the NOBITS section(s) and | |
4687 | zero it. */ | |
4688 | adjust = p->p_memsz - p->p_filesz; | |
4689 | if (!write_zeros (abfd, off, adjust)) | |
4690 | return FALSE; | |
4691 | } | |
88967714 AM |
4692 | off += adjust; |
4693 | p->p_filesz += adjust; | |
252b5132 | 4694 | } |
252b5132 RH |
4695 | } |
4696 | ||
4697 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
4698 | { | |
b301b248 AM |
4699 | /* The section at i == 0 is the one that actually contains |
4700 | everything. */ | |
4a938328 MS |
4701 | if (i == 0) |
4702 | { | |
627b32bc | 4703 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
4704 | off += this_hdr->sh_size; |
4705 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
4706 | p->p_memsz = 0; |
4707 | p->p_align = 1; | |
252b5132 | 4708 | } |
4a938328 | 4709 | else |
252b5132 | 4710 | { |
b301b248 | 4711 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 4712 | sec->filepos = 0; |
eea6121a | 4713 | sec->size = 0; |
b301b248 AM |
4714 | sec->flags = 0; |
4715 | continue; | |
252b5132 | 4716 | } |
252b5132 RH |
4717 | } |
4718 | else | |
4719 | { | |
1e951488 | 4720 | if (p->p_type == PT_LOAD) |
b301b248 | 4721 | { |
1e951488 AM |
4722 | this_hdr->sh_offset = sec->filepos = off; |
4723 | if (this_hdr->sh_type != SHT_NOBITS) | |
4724 | off += this_hdr->sh_size; | |
4725 | } | |
4726 | else if (this_hdr->sh_type == SHT_NOBITS | |
4727 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
4728 | && this_hdr->sh_offset == 0) | |
4729 | { | |
4730 | /* This is a .tbss section that didn't get a PT_LOAD. | |
4731 | (See _bfd_elf_map_sections_to_segments "Create a | |
4732 | final PT_LOAD".) Set sh_offset to the value it | |
4733 | would have if we had created a zero p_filesz and | |
4734 | p_memsz PT_LOAD header for the section. This | |
4735 | also makes the PT_TLS header have the same | |
4736 | p_offset value. */ | |
4737 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
4738 | off, align); | |
4739 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 4740 | } |
252b5132 | 4741 | |
02bf8d82 | 4742 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 4743 | { |
6a3cd2b4 | 4744 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
4745 | /* A load section without SHF_ALLOC is something like |
4746 | a note section in a PT_NOTE segment. These take | |
4747 | file space but are not loaded into memory. */ | |
4748 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 4749 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 4750 | } |
6a3cd2b4 | 4751 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 4752 | { |
6a3cd2b4 AM |
4753 | if (p->p_type == PT_TLS) |
4754 | p->p_memsz += this_hdr->sh_size; | |
4755 | ||
4756 | /* .tbss is special. It doesn't contribute to p_memsz of | |
4757 | normal segments. */ | |
4758 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
4759 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
4760 | } |
4761 | ||
b10a8ae0 L |
4762 | if (align > p->p_align |
4763 | && !m->p_align_valid | |
4764 | && (p->p_type != PT_LOAD | |
4765 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
4766 | p->p_align = align; |
4767 | } | |
4768 | ||
bf988460 | 4769 | if (!m->p_flags_valid) |
252b5132 RH |
4770 | { |
4771 | p->p_flags |= PF_R; | |
02bf8d82 | 4772 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 4773 | p->p_flags |= PF_X; |
02bf8d82 | 4774 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
4775 | p->p_flags |= PF_W; |
4776 | } | |
4777 | } | |
bf988460 | 4778 | off -= off_adjust; |
0920dee7 | 4779 | |
7c928300 AM |
4780 | /* Check that all sections are in a PT_LOAD segment. |
4781 | Don't check funky gdb generated core files. */ | |
4782 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
4783 | { |
4784 | bfd_boolean check_vma = TRUE; | |
4785 | ||
4786 | for (i = 1; i < m->count; i++) | |
4787 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
4788 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
4789 | ->this_hdr), p) != 0 | |
4790 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
4791 | ->this_hdr), p) != 0) | |
0920dee7 | 4792 | { |
9a83a553 AM |
4793 | /* Looks like we have overlays packed into the segment. */ |
4794 | check_vma = FALSE; | |
4795 | break; | |
0920dee7 | 4796 | } |
9a83a553 AM |
4797 | |
4798 | for (i = 0; i < m->count; i++) | |
4799 | { | |
4800 | Elf_Internal_Shdr *this_hdr; | |
4801 | asection *sec; | |
4802 | ||
4803 | sec = m->sections[i]; | |
4804 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
4805 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
4806 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 AM |
4807 | { |
4808 | (*_bfd_error_handler) | |
4809 | (_("%B: section `%A' can't be allocated in segment %d"), | |
4810 | abfd, sec, j); | |
4811 | print_segment_map (m); | |
4812 | } | |
4813 | } | |
4814 | } | |
252b5132 RH |
4815 | } |
4816 | ||
f3520d2f AM |
4817 | elf_tdata (abfd)->next_file_pos = off; |
4818 | return TRUE; | |
4819 | } | |
4820 | ||
4821 | /* Assign file positions for the other sections. */ | |
4822 | ||
4823 | static bfd_boolean | |
4824 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
4825 | struct bfd_link_info *link_info) | |
4826 | { | |
4827 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
4828 | Elf_Internal_Shdr **i_shdrpp; | |
4829 | Elf_Internal_Shdr **hdrpp; | |
4830 | Elf_Internal_Phdr *phdrs; | |
4831 | Elf_Internal_Phdr *p; | |
4832 | struct elf_segment_map *m; | |
62655c7b | 4833 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
4834 | bfd_vma filehdr_vaddr, filehdr_paddr; |
4835 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
4836 | file_ptr off; | |
4837 | unsigned int num_sec; | |
4838 | unsigned int i; | |
4839 | unsigned int count; | |
4840 | ||
5c182d5f AM |
4841 | i_shdrpp = elf_elfsections (abfd); |
4842 | num_sec = elf_numsections (abfd); | |
f3520d2f | 4843 | off = elf_tdata (abfd)->next_file_pos; |
5c182d5f AM |
4844 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
4845 | { | |
4846 | struct elf_obj_tdata *tdata = elf_tdata (abfd); | |
4847 | Elf_Internal_Shdr *hdr; | |
4848 | ||
4849 | hdr = *hdrpp; | |
4850 | if (hdr->bfd_section != NULL | |
252e386e AM |
4851 | && (hdr->bfd_section->filepos != 0 |
4852 | || (hdr->sh_type == SHT_NOBITS | |
4853 | && hdr->contents == NULL))) | |
627b32bc | 4854 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
4855 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
4856 | { | |
e8d2ba53 AM |
4857 | if (hdr->sh_size != 0) |
4858 | (*_bfd_error_handler) | |
4859 | (_("%B: warning: allocated section `%s' not in segment"), | |
4860 | abfd, | |
4861 | (hdr->bfd_section == NULL | |
4862 | ? "*unknown*" | |
4863 | : hdr->bfd_section->name)); | |
3ba71138 L |
4864 | /* We don't need to page align empty sections. */ |
4865 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
4866 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
4867 | bed->maxpagesize); | |
4868 | else | |
4869 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
4870 | hdr->sh_addralign); | |
4871 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
4872 | FALSE); | |
4873 | } | |
4874 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
4875 | && hdr->bfd_section == NULL) | |
4876 | || hdr == i_shdrpp[tdata->symtab_section] | |
4877 | || hdr == i_shdrpp[tdata->symtab_shndx_section] | |
4878 | || hdr == i_shdrpp[tdata->strtab_section]) | |
4879 | hdr->sh_offset = -1; | |
4880 | else | |
4881 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
4882 | } |
4883 | ||
252b5132 RH |
4884 | /* Now that we have set the section file positions, we can set up |
4885 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
4886 | count = 0; |
4887 | filehdr_vaddr = 0; | |
4888 | filehdr_paddr = 0; | |
4889 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
4890 | phdrs_paddr = 0; | |
62655c7b | 4891 | hdrs_segment = NULL; |
f3520d2f AM |
4892 | phdrs = elf_tdata (abfd)->phdr; |
4893 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; | |
4894 | m != NULL; | |
4895 | m = m->next, p++) | |
4896 | { | |
4897 | ++count; | |
4898 | if (p->p_type != PT_LOAD) | |
4899 | continue; | |
4900 | ||
4901 | if (m->includes_filehdr) | |
4902 | { | |
4903 | filehdr_vaddr = p->p_vaddr; | |
4904 | filehdr_paddr = p->p_paddr; | |
4905 | } | |
4906 | if (m->includes_phdrs) | |
4907 | { | |
4908 | phdrs_vaddr = p->p_vaddr; | |
4909 | phdrs_paddr = p->p_paddr; | |
4910 | if (m->includes_filehdr) | |
4911 | { | |
62655c7b | 4912 | hdrs_segment = m; |
f3520d2f AM |
4913 | phdrs_vaddr += bed->s->sizeof_ehdr; |
4914 | phdrs_paddr += bed->s->sizeof_ehdr; | |
4915 | } | |
4916 | } | |
4917 | } | |
4918 | ||
62655c7b RM |
4919 | if (hdrs_segment != NULL && link_info != NULL) |
4920 | { | |
4921 | /* There is a segment that contains both the file headers and the | |
4922 | program headers, so provide a symbol __ehdr_start pointing there. | |
4923 | A program can use this to examine itself robustly. */ | |
4924 | ||
4925 | struct elf_link_hash_entry *hash | |
4926 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
4927 | FALSE, FALSE, TRUE); | |
4928 | /* If the symbol was referenced and not defined, define it. */ | |
4929 | if (hash != NULL | |
4930 | && (hash->root.type == bfd_link_hash_new | |
4931 | || hash->root.type == bfd_link_hash_undefined | |
4932 | || hash->root.type == bfd_link_hash_undefweak | |
4933 | || hash->root.type == bfd_link_hash_common)) | |
4934 | { | |
4935 | asection *s = NULL; | |
4936 | if (hdrs_segment->count != 0) | |
4937 | /* The segment contains sections, so use the first one. */ | |
4938 | s = hdrs_segment->sections[0]; | |
4939 | else | |
4940 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
4941 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
4942 | if (m->count != 0) | |
4943 | { | |
4944 | s = m->sections[0]; | |
4945 | break; | |
4946 | } | |
4947 | ||
4948 | if (s != NULL) | |
4949 | { | |
4950 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
4951 | hash->root.u.def.section = s; | |
4952 | } | |
4953 | else | |
4954 | { | |
4955 | hash->root.u.def.value = filehdr_vaddr; | |
4956 | hash->root.u.def.section = bfd_abs_section_ptr; | |
4957 | } | |
4958 | ||
4959 | hash->root.type = bfd_link_hash_defined; | |
4960 | hash->def_regular = 1; | |
4961 | hash->non_elf = 0; | |
4962 | } | |
4963 | } | |
4964 | ||
252b5132 RH |
4965 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; |
4966 | m != NULL; | |
4967 | m = m->next, p++) | |
4968 | { | |
129af99f | 4969 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 4970 | { |
b84a33b5 | 4971 | const Elf_Internal_Phdr *lp; |
3146fac4 | 4972 | struct elf_segment_map *lm; |
1ea63fd2 | 4973 | |
129af99f | 4974 | if (link_info != NULL) |
8c37241b | 4975 | { |
129af99f AS |
4976 | /* During linking the range of the RELRO segment is passed |
4977 | in link_info. */ | |
3146fac4 AM |
4978 | for (lm = elf_tdata (abfd)->segment_map, lp = phdrs; |
4979 | lm != NULL; | |
4980 | lm = lm->next, lp++) | |
8c37241b JJ |
4981 | { |
4982 | if (lp->p_type == PT_LOAD | |
b84a33b5 | 4983 | && lp->p_vaddr < link_info->relro_end |
3146fac4 AM |
4984 | && lp->p_vaddr + lp->p_filesz >= link_info->relro_end |
4985 | && lm->count != 0 | |
4986 | && lm->sections[0]->vma >= link_info->relro_start) | |
8c37241b JJ |
4987 | break; |
4988 | } | |
8981c88a L |
4989 | |
4990 | /* PR ld/14207. If the RELRO segment doesn't fit in the | |
4991 | LOAD segment, it should be removed. */ | |
3146fac4 | 4992 | BFD_ASSERT (lm != NULL); |
8c37241b | 4993 | } |
129af99f AS |
4994 | else |
4995 | { | |
4996 | /* Otherwise we are copying an executable or shared | |
b84a33b5 | 4997 | library, but we need to use the same linker logic. */ |
129af99f AS |
4998 | for (lp = phdrs; lp < phdrs + count; ++lp) |
4999 | { | |
5000 | if (lp->p_type == PT_LOAD | |
5001 | && lp->p_paddr == p->p_paddr) | |
5002 | break; | |
5003 | } | |
b84a33b5 AM |
5004 | } |
5005 | ||
5006 | if (lp < phdrs + count) | |
5007 | { | |
5008 | p->p_vaddr = lp->p_vaddr; | |
5009 | p->p_paddr = lp->p_paddr; | |
5010 | p->p_offset = lp->p_offset; | |
5011 | if (link_info != NULL) | |
5012 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
5013 | else if (m->p_size_valid) | |
5014 | p->p_filesz = m->p_size; | |
129af99f AS |
5015 | else |
5016 | abort (); | |
b84a33b5 | 5017 | p->p_memsz = p->p_filesz; |
f3944f72 L |
5018 | /* Preserve the alignment and flags if they are valid. The |
5019 | gold linker generates RW/4 for the PT_GNU_RELRO section. | |
5020 | It is better for objcopy/strip to honor these attributes | |
5021 | otherwise gdb will choke when using separate debug files. | |
5022 | */ | |
5023 | if (!m->p_align_valid) | |
5024 | p->p_align = 1; | |
5025 | if (!m->p_flags_valid) | |
5026 | p->p_flags = (lp->p_flags & ~PF_W); | |
129af99f | 5027 | } |
9433b9b1 | 5028 | else |
b84a33b5 AM |
5029 | { |
5030 | memset (p, 0, sizeof *p); | |
5031 | p->p_type = PT_NULL; | |
5032 | } | |
129af99f | 5033 | } |
04c3a755 NS |
5034 | else if (p->p_type == PT_GNU_STACK) |
5035 | { | |
5036 | if (m->p_size_valid) | |
5037 | p->p_memsz = m->p_size; | |
5038 | } | |
129af99f AS |
5039 | else if (m->count != 0) |
5040 | { | |
5041 | if (p->p_type != PT_LOAD | |
5042 | && (p->p_type != PT_NOTE | |
5043 | || bfd_get_format (abfd) != bfd_core)) | |
5044 | { | |
129af99f AS |
5045 | BFD_ASSERT (!m->includes_filehdr && !m->includes_phdrs); |
5046 | ||
86b2281f | 5047 | p->p_filesz = 0; |
129af99f | 5048 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
5049 | for (i = m->count; i-- != 0;) |
5050 | { | |
5051 | asection *sect = m->sections[i]; | |
5052 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
5053 | if (hdr->sh_type != SHT_NOBITS) | |
5054 | { | |
5055 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
5056 | + hdr->sh_size); | |
5057 | break; | |
5058 | } | |
5059 | } | |
129af99f AS |
5060 | } |
5061 | } | |
5062 | else if (m->includes_filehdr) | |
5063 | { | |
5064 | p->p_vaddr = filehdr_vaddr; | |
5065 | if (! m->p_paddr_valid) | |
5066 | p->p_paddr = filehdr_paddr; | |
5067 | } | |
5068 | else if (m->includes_phdrs) | |
5069 | { | |
5070 | p->p_vaddr = phdrs_vaddr; | |
5071 | if (! m->p_paddr_valid) | |
5072 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
5073 | } |
5074 | } | |
5075 | ||
252b5132 RH |
5076 | elf_tdata (abfd)->next_file_pos = off; |
5077 | ||
b34976b6 | 5078 | return TRUE; |
252b5132 RH |
5079 | } |
5080 | ||
252b5132 RH |
5081 | /* Work out the file positions of all the sections. This is called by |
5082 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
5083 | VMAs must be known before this is called. | |
5084 | ||
e0638f70 AM |
5085 | Reloc sections come in two flavours: Those processed specially as |
5086 | "side-channel" data attached to a section to which they apply, and | |
5087 | those that bfd doesn't process as relocations. The latter sort are | |
5088 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
5089 | consider the former sort here, unless they form part of the loadable | |
5090 | image. Reloc sections not assigned here will be handled later by | |
5091 | assign_file_positions_for_relocs. | |
252b5132 RH |
5092 | |
5093 | We also don't set the positions of the .symtab and .strtab here. */ | |
5094 | ||
b34976b6 | 5095 | static bfd_boolean |
c84fca4d AO |
5096 | assign_file_positions_except_relocs (bfd *abfd, |
5097 | struct bfd_link_info *link_info) | |
252b5132 | 5098 | { |
5c182d5f AM |
5099 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
5100 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5101 | file_ptr off; |
9c5bfbb7 | 5102 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5103 | |
5104 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
5105 | && bfd_get_format (abfd) != bfd_core) | |
5106 | { | |
5c182d5f AM |
5107 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
5108 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
5109 | Elf_Internal_Shdr **hdrpp; |
5110 | unsigned int i; | |
5111 | ||
5112 | /* Start after the ELF header. */ | |
5113 | off = i_ehdrp->e_ehsize; | |
5114 | ||
5115 | /* We are not creating an executable, which means that we are | |
5116 | not creating a program header, and that the actual order of | |
5117 | the sections in the file is unimportant. */ | |
9ad5cbcf | 5118 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
5119 | { |
5120 | Elf_Internal_Shdr *hdr; | |
5121 | ||
5122 | hdr = *hdrpp; | |
e0638f70 AM |
5123 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
5124 | && hdr->bfd_section == NULL) | |
9ad5cbcf AM |
5125 | || i == tdata->symtab_section |
5126 | || i == tdata->symtab_shndx_section | |
252b5132 RH |
5127 | || i == tdata->strtab_section) |
5128 | { | |
5129 | hdr->sh_offset = -1; | |
252b5132 | 5130 | } |
9ad5cbcf | 5131 | else |
b34976b6 | 5132 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 RH |
5133 | } |
5134 | } | |
5135 | else | |
5136 | { | |
f3520d2f AM |
5137 | unsigned int alloc; |
5138 | ||
252b5132 | 5139 | /* Assign file positions for the loaded sections based on the |
08a40648 | 5140 | assignment of sections to segments. */ |
f3520d2f AM |
5141 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
5142 | return FALSE; | |
5143 | ||
5144 | /* And for non-load sections. */ | |
5145 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
5146 | return FALSE; | |
5147 | ||
e36284ab AM |
5148 | if (bed->elf_backend_modify_program_headers != NULL) |
5149 | { | |
5150 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
5151 | return FALSE; | |
5152 | } | |
5153 | ||
f3520d2f AM |
5154 | /* Write out the program headers. */ |
5155 | alloc = tdata->program_header_size / bed->s->sizeof_phdr; | |
5156 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 | |
5157 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) | |
b34976b6 | 5158 | return FALSE; |
252b5132 | 5159 | |
5c182d5f | 5160 | off = tdata->next_file_pos; |
252b5132 RH |
5161 | } |
5162 | ||
5163 | /* Place the section headers. */ | |
45d6a902 | 5164 | off = align_file_position (off, 1 << bed->s->log_file_align); |
252b5132 RH |
5165 | i_ehdrp->e_shoff = off; |
5166 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
5167 | ||
5c182d5f | 5168 | tdata->next_file_pos = off; |
252b5132 | 5169 | |
b34976b6 | 5170 | return TRUE; |
252b5132 RH |
5171 | } |
5172 | ||
b34976b6 | 5173 | static bfd_boolean |
217aa764 | 5174 | prep_headers (bfd *abfd) |
252b5132 | 5175 | { |
3d540e93 | 5176 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 5177 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 5178 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
5179 | |
5180 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 5181 | |
2b0f7ef9 | 5182 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 5183 | if (shstrtab == NULL) |
b34976b6 | 5184 | return FALSE; |
252b5132 RH |
5185 | |
5186 | elf_shstrtab (abfd) = shstrtab; | |
5187 | ||
5188 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
5189 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
5190 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
5191 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
5192 | ||
5193 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
5194 | i_ehdrp->e_ident[EI_DATA] = | |
5195 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
5196 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
5197 | ||
252b5132 RH |
5198 | if ((abfd->flags & DYNAMIC) != 0) |
5199 | i_ehdrp->e_type = ET_DYN; | |
5200 | else if ((abfd->flags & EXEC_P) != 0) | |
5201 | i_ehdrp->e_type = ET_EXEC; | |
5202 | else if (bfd_get_format (abfd) == bfd_core) | |
5203 | i_ehdrp->e_type = ET_CORE; | |
5204 | else | |
5205 | i_ehdrp->e_type = ET_REL; | |
5206 | ||
5207 | switch (bfd_get_arch (abfd)) | |
5208 | { | |
5209 | case bfd_arch_unknown: | |
5210 | i_ehdrp->e_machine = EM_NONE; | |
5211 | break; | |
aa4f99bb AO |
5212 | |
5213 | /* There used to be a long list of cases here, each one setting | |
5214 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
5215 | in the corresponding bfd definition. To avoid duplication, | |
5216 | the switch was removed. Machines that need special handling | |
5217 | can generally do it in elf_backend_final_write_processing(), | |
5218 | unless they need the information earlier than the final write. | |
5219 | Such need can generally be supplied by replacing the tests for | |
5220 | e_machine with the conditions used to determine it. */ | |
252b5132 | 5221 | default: |
9c5bfbb7 AM |
5222 | i_ehdrp->e_machine = bed->elf_machine_code; |
5223 | } | |
aa4f99bb | 5224 | |
252b5132 RH |
5225 | i_ehdrp->e_version = bed->s->ev_current; |
5226 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
5227 | ||
c044fabd | 5228 | /* No program header, for now. */ |
252b5132 RH |
5229 | i_ehdrp->e_phoff = 0; |
5230 | i_ehdrp->e_phentsize = 0; | |
5231 | i_ehdrp->e_phnum = 0; | |
5232 | ||
c044fabd | 5233 | /* Each bfd section is section header entry. */ |
252b5132 RH |
5234 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
5235 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
5236 | ||
c044fabd | 5237 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 5238 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
5239 | /* It all happens later. */ |
5240 | ; | |
252b5132 RH |
5241 | else |
5242 | { | |
5243 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
5244 | i_ehdrp->e_phoff = 0; |
5245 | } | |
5246 | ||
5247 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 5248 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 5249 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 5250 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 5251 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 5252 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 RH |
5253 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
5254 | || elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 | |
5255 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) | |
b34976b6 | 5256 | return FALSE; |
252b5132 | 5257 | |
b34976b6 | 5258 | return TRUE; |
252b5132 RH |
5259 | } |
5260 | ||
5261 | /* Assign file positions for all the reloc sections which are not part | |
5262 | of the loadable file image. */ | |
5263 | ||
5264 | void | |
217aa764 | 5265 | _bfd_elf_assign_file_positions_for_relocs (bfd *abfd) |
252b5132 RH |
5266 | { |
5267 | file_ptr off; | |
9ad5cbcf | 5268 | unsigned int i, num_sec; |
252b5132 RH |
5269 | Elf_Internal_Shdr **shdrpp; |
5270 | ||
5271 | off = elf_tdata (abfd)->next_file_pos; | |
5272 | ||
9ad5cbcf AM |
5273 | num_sec = elf_numsections (abfd); |
5274 | for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++) | |
252b5132 RH |
5275 | { |
5276 | Elf_Internal_Shdr *shdrp; | |
5277 | ||
5278 | shdrp = *shdrpp; | |
5279 | if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA) | |
5280 | && shdrp->sh_offset == -1) | |
b34976b6 | 5281 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); |
252b5132 RH |
5282 | } |
5283 | ||
5284 | elf_tdata (abfd)->next_file_pos = off; | |
5285 | } | |
5286 | ||
b34976b6 | 5287 | bfd_boolean |
217aa764 | 5288 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 5289 | { |
9c5bfbb7 | 5290 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5291 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 5292 | bfd_boolean failed; |
9ad5cbcf | 5293 | unsigned int count, num_sec; |
252b5132 RH |
5294 | |
5295 | if (! abfd->output_has_begun | |
217aa764 | 5296 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 5297 | return FALSE; |
252b5132 RH |
5298 | |
5299 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 5300 | |
b34976b6 | 5301 | failed = FALSE; |
252b5132 RH |
5302 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
5303 | if (failed) | |
b34976b6 | 5304 | return FALSE; |
252b5132 RH |
5305 | |
5306 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |
5307 | ||
c044fabd | 5308 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
5309 | num_sec = elf_numsections (abfd); |
5310 | for (count = 1; count < num_sec; count++) | |
252b5132 RH |
5311 | { |
5312 | if (bed->elf_backend_section_processing) | |
5313 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
5314 | if (i_shdrp[count]->contents) | |
5315 | { | |
dc810e39 AM |
5316 | bfd_size_type amt = i_shdrp[count]->sh_size; |
5317 | ||
252b5132 | 5318 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 5319 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 5320 | return FALSE; |
252b5132 RH |
5321 | } |
5322 | } | |
5323 | ||
5324 | /* Write out the section header names. */ | |
26ae6d5e DJ |
5325 | if (elf_shstrtab (abfd) != NULL |
5326 | && (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0 | |
08a40648 | 5327 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 5328 | return FALSE; |
252b5132 RH |
5329 | |
5330 | if (bed->elf_backend_final_write_processing) | |
5331 | (*bed->elf_backend_final_write_processing) (abfd, | |
5332 | elf_tdata (abfd)->linker); | |
5333 | ||
ff59fc36 RM |
5334 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
5335 | return FALSE; | |
5336 | ||
5337 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
bfb53a4f RM |
5338 | if (elf_tdata (abfd)->after_write_object_contents) |
5339 | return (*elf_tdata (abfd)->after_write_object_contents) (abfd); | |
ff59fc36 RM |
5340 | |
5341 | return TRUE; | |
252b5132 RH |
5342 | } |
5343 | ||
b34976b6 | 5344 | bfd_boolean |
217aa764 | 5345 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 5346 | { |
c044fabd | 5347 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
5348 | return _bfd_elf_write_object_contents (abfd); |
5349 | } | |
c044fabd KH |
5350 | |
5351 | /* Given a section, search the header to find them. */ | |
5352 | ||
cb33740c | 5353 | unsigned int |
198beae2 | 5354 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 5355 | { |
9c5bfbb7 | 5356 | const struct elf_backend_data *bed; |
91d6fa6a | 5357 | unsigned int sec_index; |
252b5132 | 5358 | |
9ad5cbcf AM |
5359 | if (elf_section_data (asect) != NULL |
5360 | && elf_section_data (asect)->this_idx != 0) | |
5361 | return elf_section_data (asect)->this_idx; | |
5362 | ||
5363 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 5364 | sec_index = SHN_ABS; |
af746e92 | 5365 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 5366 | sec_index = SHN_COMMON; |
af746e92 | 5367 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 5368 | sec_index = SHN_UNDEF; |
af746e92 | 5369 | else |
91d6fa6a | 5370 | sec_index = SHN_BAD; |
252b5132 | 5371 | |
af746e92 | 5372 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
5373 | if (bed->elf_backend_section_from_bfd_section) |
5374 | { | |
91d6fa6a | 5375 | int retval = sec_index; |
9ad5cbcf | 5376 | |
af746e92 AM |
5377 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
5378 | return retval; | |
252b5132 RH |
5379 | } |
5380 | ||
91d6fa6a | 5381 | if (sec_index == SHN_BAD) |
af746e92 | 5382 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 5383 | |
91d6fa6a | 5384 | return sec_index; |
252b5132 RH |
5385 | } |
5386 | ||
5387 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
5388 | on error. */ | |
5389 | ||
5390 | int | |
217aa764 | 5391 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
5392 | { |
5393 | asymbol *asym_ptr = *asym_ptr_ptr; | |
5394 | int idx; | |
5395 | flagword flags = asym_ptr->flags; | |
5396 | ||
5397 | /* When gas creates relocations against local labels, it creates its | |
5398 | own symbol for the section, but does put the symbol into the | |
5399 | symbol chain, so udata is 0. When the linker is generating | |
5400 | relocatable output, this section symbol may be for one of the | |
5401 | input sections rather than the output section. */ | |
5402 | if (asym_ptr->udata.i == 0 | |
5403 | && (flags & BSF_SECTION_SYM) | |
5404 | && asym_ptr->section) | |
5405 | { | |
5372391b | 5406 | asection *sec; |
252b5132 RH |
5407 | int indx; |
5408 | ||
5372391b AM |
5409 | sec = asym_ptr->section; |
5410 | if (sec->owner != abfd && sec->output_section != NULL) | |
5411 | sec = sec->output_section; | |
5412 | if (sec->owner == abfd | |
5413 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 5414 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
5415 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
5416 | } | |
5417 | ||
5418 | idx = asym_ptr->udata.i; | |
5419 | ||
5420 | if (idx == 0) | |
5421 | { | |
5422 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 5423 | which is used in a relocation entry. */ |
252b5132 | 5424 | (*_bfd_error_handler) |
d003868e AM |
5425 | (_("%B: symbol `%s' required but not present"), |
5426 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
5427 | bfd_set_error (bfd_error_no_symbols); |
5428 | return -1; | |
5429 | } | |
5430 | ||
5431 | #if DEBUG & 4 | |
5432 | { | |
5433 | fprintf (stderr, | |
9ccb8af9 AM |
5434 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx\n", |
5435 | (long) asym_ptr, asym_ptr->name, idx, (long) flags); | |
252b5132 RH |
5436 | fflush (stderr); |
5437 | } | |
5438 | #endif | |
5439 | ||
5440 | return idx; | |
5441 | } | |
5442 | ||
84d1d650 | 5443 | /* Rewrite program header information. */ |
252b5132 | 5444 | |
b34976b6 | 5445 | static bfd_boolean |
84d1d650 | 5446 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 5447 | { |
b34976b6 AM |
5448 | Elf_Internal_Ehdr *iehdr; |
5449 | struct elf_segment_map *map; | |
5450 | struct elf_segment_map *map_first; | |
5451 | struct elf_segment_map **pointer_to_map; | |
5452 | Elf_Internal_Phdr *segment; | |
5453 | asection *section; | |
5454 | unsigned int i; | |
5455 | unsigned int num_segments; | |
5456 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 5457 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
5458 | bfd_vma maxpagesize; |
5459 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
5460 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 5461 | const struct elf_backend_data *bed; |
bc67d8a6 | 5462 | |
caf47ea6 | 5463 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
5464 | iehdr = elf_elfheader (ibfd); |
5465 | ||
bc67d8a6 | 5466 | map_first = NULL; |
c044fabd | 5467 | pointer_to_map = &map_first; |
252b5132 RH |
5468 | |
5469 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
5470 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
5471 | ||
5472 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
5473 | #define SEGMENT_END(segment, start) \ |
5474 | (start + (segment->p_memsz > segment->p_filesz \ | |
5475 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 5476 | |
eecdbe52 JJ |
5477 | #define SECTION_SIZE(section, segment) \ |
5478 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
5479 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 5480 | ? section->size : 0) |
eecdbe52 | 5481 | |
b34976b6 | 5482 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5483 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
5484 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
5485 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 5486 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5487 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 5488 | |
b34976b6 | 5489 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 5490 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
5491 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
5492 | (section->lma >= base \ | |
eecdbe52 | 5493 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 5494 | <= SEGMENT_END (segment, base))) |
252b5132 | 5495 | |
0efc80c8 L |
5496 | /* Handle PT_NOTE segment. */ |
5497 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 5498 | (p->p_type == PT_NOTE \ |
0efc80c8 | 5499 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 5500 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5501 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5502 | <= p->p_offset + p->p_filesz)) |
252b5132 | 5503 | |
0efc80c8 L |
5504 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
5505 | etc. */ | |
5506 | #define IS_COREFILE_NOTE(p, s) \ | |
5507 | (IS_NOTE (p, s) \ | |
5508 | && bfd_get_format (ibfd) == bfd_core \ | |
5509 | && s->vma == 0 \ | |
5510 | && s->lma == 0) | |
5511 | ||
252b5132 RH |
5512 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
5513 | linker, which generates a PT_INTERP section with p_vaddr and | |
5514 | p_memsz set to 0. */ | |
aecc8f8a AM |
5515 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
5516 | (p->p_vaddr == 0 \ | |
5517 | && p->p_paddr == 0 \ | |
5518 | && p->p_memsz == 0 \ | |
5519 | && p->p_filesz > 0 \ | |
5520 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 5521 | && s->size > 0 \ |
aecc8f8a | 5522 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 5523 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 5524 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 5525 | |
bc67d8a6 NC |
5526 | /* Decide if the given section should be included in the given segment. |
5527 | A section will be included if: | |
f5ffc919 | 5528 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 5529 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 5530 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 5531 | segment. |
bc67d8a6 | 5532 | 3. There is an output section associated with it, |
eecdbe52 | 5533 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 5534 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 5535 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
5536 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
5537 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 5538 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 5539 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
5540 | ((((segment->p_paddr \ |
5541 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
5542 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
5543 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 5544 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
5545 | && segment->p_type != PT_GNU_STACK \ |
5546 | && (segment->p_type != PT_TLS \ | |
5547 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
5548 | && (segment->p_type == PT_LOAD \ | |
5549 | || segment->p_type == PT_TLS \ | |
5550 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
5551 | && (segment->p_type != PT_DYNAMIC \ | |
5552 | || SECTION_SIZE (section, segment) > 0 \ | |
5553 | || (segment->p_paddr \ | |
5554 | ? segment->p_paddr != section->lma \ | |
5555 | : segment->p_vaddr != section->vma) \ | |
5556 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
5557 | == 0)) \ | |
0067a569 | 5558 | && !section->segment_mark) |
bc67d8a6 | 5559 | |
9f17e2a6 L |
5560 | /* If the output section of a section in the input segment is NULL, |
5561 | it is removed from the corresponding output segment. */ | |
5562 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
5563 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
5564 | && section->output_section != NULL) | |
5565 | ||
b34976b6 | 5566 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
5567 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
5568 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
5569 | ||
5570 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
5571 | their VMA address ranges and their LMA address ranges overlap. | |
5572 | It is possible to have overlapping VMA ranges without overlapping LMA | |
5573 | ranges. RedBoot images for example can have both .data and .bss mapped | |
5574 | to the same VMA range, but with the .data section mapped to a different | |
5575 | LMA. */ | |
aecc8f8a | 5576 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 5577 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 5578 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 5579 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 5580 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
5581 | |
5582 | /* Initialise the segment mark field. */ | |
5583 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 5584 | section->segment_mark = FALSE; |
bc67d8a6 | 5585 | |
5c44b38e AM |
5586 | /* The Solaris linker creates program headers in which all the |
5587 | p_paddr fields are zero. When we try to objcopy or strip such a | |
5588 | file, we get confused. Check for this case, and if we find it | |
5589 | don't set the p_paddr_valid fields. */ | |
5590 | p_paddr_valid = FALSE; | |
5591 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5592 | i < num_segments; | |
5593 | i++, segment++) | |
5594 | if (segment->p_paddr != 0) | |
5595 | { | |
5596 | p_paddr_valid = TRUE; | |
5597 | break; | |
5598 | } | |
5599 | ||
252b5132 | 5600 | /* Scan through the segments specified in the program header |
bc67d8a6 | 5601 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 5602 | in the loadable segments. These can be created by weird |
aecc8f8a | 5603 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
5604 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
5605 | i < num_segments; | |
c044fabd | 5606 | i++, segment++) |
252b5132 | 5607 | { |
252b5132 | 5608 | unsigned int j; |
c044fabd | 5609 | Elf_Internal_Phdr *segment2; |
252b5132 | 5610 | |
aecc8f8a AM |
5611 | if (segment->p_type == PT_INTERP) |
5612 | for (section = ibfd->sections; section; section = section->next) | |
5613 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
5614 | { | |
5615 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 5616 | assignment code will work. */ |
aecc8f8a AM |
5617 | segment->p_vaddr = section->vma; |
5618 | break; | |
5619 | } | |
5620 | ||
bc67d8a6 | 5621 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
5622 | { |
5623 | /* Remove PT_GNU_RELRO segment. */ | |
5624 | if (segment->p_type == PT_GNU_RELRO) | |
5625 | segment->p_type = PT_NULL; | |
5626 | continue; | |
5627 | } | |
c044fabd | 5628 | |
bc67d8a6 | 5629 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 5630 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
5631 | { |
5632 | bfd_signed_vma extra_length; | |
c044fabd | 5633 | |
bc67d8a6 | 5634 | if (segment2->p_type != PT_LOAD |
0067a569 | 5635 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 5636 | continue; |
c044fabd | 5637 | |
bc67d8a6 NC |
5638 | /* Merge the two segments together. */ |
5639 | if (segment2->p_vaddr < segment->p_vaddr) | |
5640 | { | |
c044fabd | 5641 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 5642 | SEGMENT. */ |
0067a569 AM |
5643 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
5644 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 5645 | |
bc67d8a6 NC |
5646 | if (extra_length > 0) |
5647 | { | |
0067a569 | 5648 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
5649 | segment2->p_filesz += extra_length; |
5650 | } | |
c044fabd | 5651 | |
bc67d8a6 | 5652 | segment->p_type = PT_NULL; |
c044fabd | 5653 | |
bc67d8a6 NC |
5654 | /* Since we have deleted P we must restart the outer loop. */ |
5655 | i = 0; | |
5656 | segment = elf_tdata (ibfd)->phdr; | |
5657 | break; | |
5658 | } | |
5659 | else | |
5660 | { | |
c044fabd | 5661 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 5662 | SEGMENT2. */ |
0067a569 AM |
5663 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
5664 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 5665 | |
bc67d8a6 NC |
5666 | if (extra_length > 0) |
5667 | { | |
0067a569 | 5668 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
5669 | segment->p_filesz += extra_length; |
5670 | } | |
c044fabd | 5671 | |
bc67d8a6 NC |
5672 | segment2->p_type = PT_NULL; |
5673 | } | |
5674 | } | |
5675 | } | |
c044fabd | 5676 | |
bc67d8a6 NC |
5677 | /* The second scan attempts to assign sections to segments. */ |
5678 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5679 | i < num_segments; | |
0067a569 | 5680 | i++, segment++) |
bc67d8a6 | 5681 | { |
0067a569 AM |
5682 | unsigned int section_count; |
5683 | asection **sections; | |
5684 | asection *output_section; | |
5685 | unsigned int isec; | |
5686 | bfd_vma matching_lma; | |
5687 | bfd_vma suggested_lma; | |
5688 | unsigned int j; | |
dc810e39 | 5689 | bfd_size_type amt; |
0067a569 AM |
5690 | asection *first_section; |
5691 | bfd_boolean first_matching_lma; | |
5692 | bfd_boolean first_suggested_lma; | |
bc67d8a6 NC |
5693 | |
5694 | if (segment->p_type == PT_NULL) | |
5695 | continue; | |
c044fabd | 5696 | |
9f17e2a6 | 5697 | first_section = NULL; |
bc67d8a6 | 5698 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
5699 | for (section = ibfd->sections, section_count = 0; |
5700 | section != NULL; | |
5701 | section = section->next) | |
9f17e2a6 L |
5702 | { |
5703 | /* Find the first section in the input segment, which may be | |
5704 | removed from the corresponding output segment. */ | |
5705 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
5706 | { | |
5707 | if (first_section == NULL) | |
5708 | first_section = section; | |
5709 | if (section->output_section != NULL) | |
5710 | ++section_count; | |
5711 | } | |
5712 | } | |
811072d8 | 5713 | |
b5f852ea NC |
5714 | /* Allocate a segment map big enough to contain |
5715 | all of the sections we have selected. */ | |
dc810e39 AM |
5716 | amt = sizeof (struct elf_segment_map); |
5717 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 5718 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 5719 | if (map == NULL) |
b34976b6 | 5720 | return FALSE; |
252b5132 RH |
5721 | |
5722 | /* Initialise the fields of the segment map. Default to | |
5723 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
5724 | map->next = NULL; |
5725 | map->p_type = segment->p_type; | |
5726 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 5727 | map->p_flags_valid = 1; |
55d55ac7 | 5728 | |
9f17e2a6 L |
5729 | /* If the first section in the input segment is removed, there is |
5730 | no need to preserve segment physical address in the corresponding | |
5731 | output segment. */ | |
945c025a | 5732 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
5733 | { |
5734 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 5735 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 5736 | } |
252b5132 RH |
5737 | |
5738 | /* Determine if this segment contains the ELF file header | |
5739 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
5740 | map->includes_filehdr = (segment->p_offset == 0 |
5741 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 5742 | map->includes_phdrs = 0; |
252b5132 | 5743 | |
0067a569 | 5744 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 5745 | { |
bc67d8a6 NC |
5746 | map->includes_phdrs = |
5747 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
5748 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
5749 | >= ((bfd_vma) iehdr->e_phoff |
5750 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 5751 | |
bc67d8a6 | 5752 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 5753 | phdr_included = TRUE; |
252b5132 RH |
5754 | } |
5755 | ||
bc67d8a6 | 5756 | if (section_count == 0) |
252b5132 RH |
5757 | { |
5758 | /* Special segments, such as the PT_PHDR segment, may contain | |
5759 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 NC |
5760 | something. They are allowed by the ELF spec however, so only |
5761 | a warning is produced. */ | |
bc67d8a6 | 5762 | if (segment->p_type == PT_LOAD) |
0067a569 AM |
5763 | (*_bfd_error_handler) (_("%B: warning: Empty loadable segment" |
5764 | " detected, is this intentional ?\n"), | |
5765 | ibfd); | |
252b5132 | 5766 | |
bc67d8a6 | 5767 | map->count = 0; |
c044fabd KH |
5768 | *pointer_to_map = map; |
5769 | pointer_to_map = &map->next; | |
252b5132 RH |
5770 | |
5771 | continue; | |
5772 | } | |
5773 | ||
5774 | /* Now scan the sections in the input BFD again and attempt | |
5775 | to add their corresponding output sections to the segment map. | |
5776 | The problem here is how to handle an output section which has | |
5777 | been moved (ie had its LMA changed). There are four possibilities: | |
5778 | ||
5779 | 1. None of the sections have been moved. | |
5780 | In this case we can continue to use the segment LMA from the | |
5781 | input BFD. | |
5782 | ||
5783 | 2. All of the sections have been moved by the same amount. | |
5784 | In this case we can change the segment's LMA to match the LMA | |
5785 | of the first section. | |
5786 | ||
5787 | 3. Some of the sections have been moved, others have not. | |
5788 | In this case those sections which have not been moved can be | |
5789 | placed in the current segment which will have to have its size, | |
5790 | and possibly its LMA changed, and a new segment or segments will | |
5791 | have to be created to contain the other sections. | |
5792 | ||
b5f852ea | 5793 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
5794 | In this case we can change the segment's LMA to match the LMA |
5795 | of the first section and we will have to create a new segment | |
5796 | or segments to contain the other sections. | |
5797 | ||
5798 | In order to save time, we allocate an array to hold the section | |
5799 | pointers that we are interested in. As these sections get assigned | |
5800 | to a segment, they are removed from this array. */ | |
5801 | ||
a50b1753 | 5802 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 5803 | if (sections == NULL) |
b34976b6 | 5804 | return FALSE; |
252b5132 RH |
5805 | |
5806 | /* Step One: Scan for segment vs section LMA conflicts. | |
5807 | Also add the sections to the section array allocated above. | |
5808 | Also add the sections to the current segment. In the common | |
5809 | case, where the sections have not been moved, this means that | |
5810 | we have completely filled the segment, and there is nothing | |
5811 | more to do. */ | |
252b5132 | 5812 | isec = 0; |
72730e0c | 5813 | matching_lma = 0; |
252b5132 | 5814 | suggested_lma = 0; |
0067a569 AM |
5815 | first_matching_lma = TRUE; |
5816 | first_suggested_lma = TRUE; | |
252b5132 | 5817 | |
147d51c2 | 5818 | for (section = ibfd->sections; |
bc67d8a6 NC |
5819 | section != NULL; |
5820 | section = section->next) | |
147d51c2 L |
5821 | if (section == first_section) |
5822 | break; | |
5823 | ||
5824 | for (j = 0; section != NULL; section = section->next) | |
252b5132 | 5825 | { |
caf47ea6 | 5826 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 5827 | { |
bc67d8a6 NC |
5828 | output_section = section->output_section; |
5829 | ||
0067a569 | 5830 | sections[j++] = section; |
252b5132 RH |
5831 | |
5832 | /* The Solaris native linker always sets p_paddr to 0. | |
5833 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
5834 | correct value. Note - some backends require that |
5835 | p_paddr be left as zero. */ | |
5c44b38e | 5836 | if (!p_paddr_valid |
4455705d | 5837 | && segment->p_vaddr != 0 |
0067a569 | 5838 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 5839 | && isec == 0 |
bc67d8a6 | 5840 | && output_section->lma != 0 |
0067a569 AM |
5841 | && output_section->vma == (segment->p_vaddr |
5842 | + (map->includes_filehdr | |
5843 | ? iehdr->e_ehsize | |
5844 | : 0) | |
5845 | + (map->includes_phdrs | |
5846 | ? (iehdr->e_phnum | |
5847 | * iehdr->e_phentsize) | |
5848 | : 0))) | |
bc67d8a6 | 5849 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
5850 | |
5851 | /* Match up the physical address of the segment with the | |
5852 | LMA address of the output section. */ | |
bc67d8a6 | 5853 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 5854 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
5855 | || (bed->want_p_paddr_set_to_zero |
5856 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 5857 | { |
0067a569 AM |
5858 | if (first_matching_lma || output_section->lma < matching_lma) |
5859 | { | |
5860 | matching_lma = output_section->lma; | |
5861 | first_matching_lma = FALSE; | |
5862 | } | |
252b5132 RH |
5863 | |
5864 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 5865 | then it does not overlap any other section within that |
252b5132 | 5866 | segment. */ |
0067a569 AM |
5867 | map->sections[isec++] = output_section; |
5868 | } | |
5869 | else if (first_suggested_lma) | |
5870 | { | |
5871 | suggested_lma = output_section->lma; | |
5872 | first_suggested_lma = FALSE; | |
252b5132 | 5873 | } |
147d51c2 L |
5874 | |
5875 | if (j == section_count) | |
5876 | break; | |
252b5132 RH |
5877 | } |
5878 | } | |
5879 | ||
bc67d8a6 | 5880 | BFD_ASSERT (j == section_count); |
252b5132 RH |
5881 | |
5882 | /* Step Two: Adjust the physical address of the current segment, | |
5883 | if necessary. */ | |
bc67d8a6 | 5884 | if (isec == section_count) |
252b5132 RH |
5885 | { |
5886 | /* All of the sections fitted within the segment as currently | |
5887 | specified. This is the default case. Add the segment to | |
5888 | the list of built segments and carry on to process the next | |
5889 | program header in the input BFD. */ | |
bc67d8a6 | 5890 | map->count = section_count; |
c044fabd KH |
5891 | *pointer_to_map = map; |
5892 | pointer_to_map = &map->next; | |
08a40648 | 5893 | |
5c44b38e AM |
5894 | if (p_paddr_valid |
5895 | && !bed->want_p_paddr_set_to_zero | |
147d51c2 | 5896 | && matching_lma != map->p_paddr |
5c44b38e AM |
5897 | && !map->includes_filehdr |
5898 | && !map->includes_phdrs) | |
3271a814 NS |
5899 | /* There is some padding before the first section in the |
5900 | segment. So, we must account for that in the output | |
5901 | segment's vma. */ | |
5902 | map->p_vaddr_offset = matching_lma - map->p_paddr; | |
08a40648 | 5903 | |
252b5132 RH |
5904 | free (sections); |
5905 | continue; | |
5906 | } | |
252b5132 RH |
5907 | else |
5908 | { | |
0067a569 | 5909 | if (!first_matching_lma) |
72730e0c AM |
5910 | { |
5911 | /* At least one section fits inside the current segment. | |
5912 | Keep it, but modify its physical address to match the | |
5913 | LMA of the first section that fitted. */ | |
bc67d8a6 | 5914 | map->p_paddr = matching_lma; |
72730e0c AM |
5915 | } |
5916 | else | |
5917 | { | |
5918 | /* None of the sections fitted inside the current segment. | |
5919 | Change the current segment's physical address to match | |
5920 | the LMA of the first section. */ | |
bc67d8a6 | 5921 | map->p_paddr = suggested_lma; |
72730e0c AM |
5922 | } |
5923 | ||
bc67d8a6 NC |
5924 | /* Offset the segment physical address from the lma |
5925 | to allow for space taken up by elf headers. */ | |
5926 | if (map->includes_filehdr) | |
010c8431 AM |
5927 | { |
5928 | if (map->p_paddr >= iehdr->e_ehsize) | |
5929 | map->p_paddr -= iehdr->e_ehsize; | |
5930 | else | |
5931 | { | |
5932 | map->includes_filehdr = FALSE; | |
5933 | map->includes_phdrs = FALSE; | |
5934 | } | |
5935 | } | |
252b5132 | 5936 | |
bc67d8a6 NC |
5937 | if (map->includes_phdrs) |
5938 | { | |
010c8431 AM |
5939 | if (map->p_paddr >= iehdr->e_phnum * iehdr->e_phentsize) |
5940 | { | |
5941 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
5942 | ||
5943 | /* iehdr->e_phnum is just an estimate of the number | |
5944 | of program headers that we will need. Make a note | |
5945 | here of the number we used and the segment we chose | |
5946 | to hold these headers, so that we can adjust the | |
5947 | offset when we know the correct value. */ | |
5948 | phdr_adjust_num = iehdr->e_phnum; | |
5949 | phdr_adjust_seg = map; | |
5950 | } | |
5951 | else | |
5952 | map->includes_phdrs = FALSE; | |
bc67d8a6 | 5953 | } |
252b5132 RH |
5954 | } |
5955 | ||
5956 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 5957 | those that fit to the current segment and removing them from the |
252b5132 RH |
5958 | sections array; but making sure not to leave large gaps. Once all |
5959 | possible sections have been assigned to the current segment it is | |
5960 | added to the list of built segments and if sections still remain | |
5961 | to be assigned, a new segment is constructed before repeating | |
5962 | the loop. */ | |
5963 | isec = 0; | |
5964 | do | |
5965 | { | |
bc67d8a6 | 5966 | map->count = 0; |
252b5132 | 5967 | suggested_lma = 0; |
0067a569 | 5968 | first_suggested_lma = TRUE; |
252b5132 RH |
5969 | |
5970 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 5971 | for (j = 0; j < section_count; j++) |
252b5132 | 5972 | { |
bc67d8a6 | 5973 | section = sections[j]; |
252b5132 | 5974 | |
bc67d8a6 | 5975 | if (section == NULL) |
252b5132 RH |
5976 | continue; |
5977 | ||
bc67d8a6 | 5978 | output_section = section->output_section; |
252b5132 | 5979 | |
bc67d8a6 | 5980 | BFD_ASSERT (output_section != NULL); |
c044fabd | 5981 | |
bc67d8a6 NC |
5982 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5983 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 5984 | { |
bc67d8a6 | 5985 | if (map->count == 0) |
252b5132 RH |
5986 | { |
5987 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
5988 | the beginning of the segment, then something is |
5989 | wrong. */ | |
0067a569 AM |
5990 | if (output_section->lma |
5991 | != (map->p_paddr | |
5992 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
5993 | + (map->includes_phdrs | |
5994 | ? iehdr->e_phnum * iehdr->e_phentsize | |
5995 | : 0))) | |
252b5132 RH |
5996 | abort (); |
5997 | } | |
5998 | else | |
5999 | { | |
0067a569 | 6000 | asection *prev_sec; |
252b5132 | 6001 | |
bc67d8a6 | 6002 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
6003 | |
6004 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
6005 | and the start of this section is more than |
6006 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 6007 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 6008 | maxpagesize) |
caf47ea6 | 6009 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 6010 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 6011 | > output_section->lma)) |
252b5132 | 6012 | { |
0067a569 AM |
6013 | if (first_suggested_lma) |
6014 | { | |
6015 | suggested_lma = output_section->lma; | |
6016 | first_suggested_lma = FALSE; | |
6017 | } | |
252b5132 RH |
6018 | |
6019 | continue; | |
6020 | } | |
6021 | } | |
6022 | ||
bc67d8a6 | 6023 | map->sections[map->count++] = output_section; |
252b5132 RH |
6024 | ++isec; |
6025 | sections[j] = NULL; | |
b34976b6 | 6026 | section->segment_mark = TRUE; |
252b5132 | 6027 | } |
0067a569 AM |
6028 | else if (first_suggested_lma) |
6029 | { | |
6030 | suggested_lma = output_section->lma; | |
6031 | first_suggested_lma = FALSE; | |
6032 | } | |
252b5132 RH |
6033 | } |
6034 | ||
bc67d8a6 | 6035 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
6036 | |
6037 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
6038 | *pointer_to_map = map; |
6039 | pointer_to_map = &map->next; | |
252b5132 | 6040 | |
bc67d8a6 | 6041 | if (isec < section_count) |
252b5132 RH |
6042 | { |
6043 | /* We still have not allocated all of the sections to | |
6044 | segments. Create a new segment here, initialise it | |
6045 | and carry on looping. */ | |
dc810e39 AM |
6046 | amt = sizeof (struct elf_segment_map); |
6047 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
5964fc3a | 6048 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6049 | if (map == NULL) |
5ed6aba4 NC |
6050 | { |
6051 | free (sections); | |
6052 | return FALSE; | |
6053 | } | |
252b5132 RH |
6054 | |
6055 | /* Initialise the fields of the segment map. Set the physical | |
6056 | physical address to the LMA of the first section that has | |
6057 | not yet been assigned. */ | |
0067a569 AM |
6058 | map->next = NULL; |
6059 | map->p_type = segment->p_type; | |
6060 | map->p_flags = segment->p_flags; | |
6061 | map->p_flags_valid = 1; | |
6062 | map->p_paddr = suggested_lma; | |
5c44b38e | 6063 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 6064 | map->includes_filehdr = 0; |
0067a569 | 6065 | map->includes_phdrs = 0; |
252b5132 RH |
6066 | } |
6067 | } | |
bc67d8a6 | 6068 | while (isec < section_count); |
252b5132 RH |
6069 | |
6070 | free (sections); | |
6071 | } | |
6072 | ||
bc67d8a6 NC |
6073 | elf_tdata (obfd)->segment_map = map_first; |
6074 | ||
6075 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 6076 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
6077 | the offset if necessary. */ |
6078 | if (phdr_adjust_seg != NULL) | |
6079 | { | |
6080 | unsigned int count; | |
c044fabd | 6081 | |
bc67d8a6 | 6082 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 6083 | count++; |
252b5132 | 6084 | |
bc67d8a6 NC |
6085 | if (count > phdr_adjust_num) |
6086 | phdr_adjust_seg->p_paddr | |
6087 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
6088 | } | |
c044fabd | 6089 | |
bc67d8a6 | 6090 | #undef SEGMENT_END |
eecdbe52 | 6091 | #undef SECTION_SIZE |
bc67d8a6 NC |
6092 | #undef IS_CONTAINED_BY_VMA |
6093 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 6094 | #undef IS_NOTE |
252b5132 | 6095 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 6096 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 6097 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
6098 | #undef INCLUDE_SECTION_IN_SEGMENT |
6099 | #undef SEGMENT_AFTER_SEGMENT | |
6100 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 6101 | return TRUE; |
252b5132 RH |
6102 | } |
6103 | ||
84d1d650 L |
6104 | /* Copy ELF program header information. */ |
6105 | ||
6106 | static bfd_boolean | |
6107 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
6108 | { | |
6109 | Elf_Internal_Ehdr *iehdr; | |
6110 | struct elf_segment_map *map; | |
6111 | struct elf_segment_map *map_first; | |
6112 | struct elf_segment_map **pointer_to_map; | |
6113 | Elf_Internal_Phdr *segment; | |
6114 | unsigned int i; | |
6115 | unsigned int num_segments; | |
6116 | bfd_boolean phdr_included = FALSE; | |
88967714 | 6117 | bfd_boolean p_paddr_valid; |
84d1d650 L |
6118 | |
6119 | iehdr = elf_elfheader (ibfd); | |
6120 | ||
6121 | map_first = NULL; | |
6122 | pointer_to_map = &map_first; | |
6123 | ||
88967714 AM |
6124 | /* If all the segment p_paddr fields are zero, don't set |
6125 | map->p_paddr_valid. */ | |
6126 | p_paddr_valid = FALSE; | |
84d1d650 | 6127 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
6128 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6129 | i < num_segments; | |
6130 | i++, segment++) | |
6131 | if (segment->p_paddr != 0) | |
6132 | { | |
6133 | p_paddr_valid = TRUE; | |
6134 | break; | |
6135 | } | |
6136 | ||
84d1d650 L |
6137 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6138 | i < num_segments; | |
6139 | i++, segment++) | |
6140 | { | |
6141 | asection *section; | |
6142 | unsigned int section_count; | |
6143 | bfd_size_type amt; | |
6144 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 6145 | asection *first_section = NULL; |
a76e6f2f | 6146 | asection *lowest_section; |
84d1d650 | 6147 | |
84d1d650 L |
6148 | /* Compute how many sections are in this segment. */ |
6149 | for (section = ibfd->sections, section_count = 0; | |
6150 | section != NULL; | |
6151 | section = section->next) | |
6152 | { | |
6153 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6154 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 6155 | { |
a76e6f2f AM |
6156 | if (first_section == NULL) |
6157 | first_section = section; | |
3271a814 NS |
6158 | section_count++; |
6159 | } | |
84d1d650 L |
6160 | } |
6161 | ||
6162 | /* Allocate a segment map big enough to contain | |
6163 | all of the sections we have selected. */ | |
6164 | amt = sizeof (struct elf_segment_map); | |
6165 | if (section_count != 0) | |
6166 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
a50b1753 | 6167 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
6168 | if (map == NULL) |
6169 | return FALSE; | |
6170 | ||
6171 | /* Initialize the fields of the output segment map with the | |
6172 | input segment. */ | |
6173 | map->next = NULL; | |
6174 | map->p_type = segment->p_type; | |
6175 | map->p_flags = segment->p_flags; | |
6176 | map->p_flags_valid = 1; | |
6177 | map->p_paddr = segment->p_paddr; | |
88967714 | 6178 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
6179 | map->p_align = segment->p_align; |
6180 | map->p_align_valid = 1; | |
3271a814 | 6181 | map->p_vaddr_offset = 0; |
84d1d650 | 6182 | |
04c3a755 NS |
6183 | if (map->p_type == PT_GNU_RELRO |
6184 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
6185 | { |
6186 | /* The PT_GNU_RELRO segment may contain the first a few | |
6187 | bytes in the .got.plt section even if the whole .got.plt | |
6188 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
6189 | change the size of the PT_GNU_RELRO segment. |
6190 | Similarly, PT_GNU_STACK size is significant on uclinux | |
6191 | systems. */ | |
9433b9b1 | 6192 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
6193 | map->p_size_valid = 1; |
6194 | } | |
6195 | ||
84d1d650 L |
6196 | /* Determine if this segment contains the ELF file header |
6197 | and if it contains the program headers themselves. */ | |
6198 | map->includes_filehdr = (segment->p_offset == 0 | |
6199 | && segment->p_filesz >= iehdr->e_ehsize); | |
6200 | ||
6201 | map->includes_phdrs = 0; | |
6202 | if (! phdr_included || segment->p_type != PT_LOAD) | |
6203 | { | |
6204 | map->includes_phdrs = | |
6205 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6206 | && (segment->p_offset + segment->p_filesz | |
6207 | >= ((bfd_vma) iehdr->e_phoff | |
6208 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
6209 | ||
6210 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
6211 | phdr_included = TRUE; | |
6212 | } | |
6213 | ||
a76e6f2f | 6214 | lowest_section = first_section; |
84d1d650 L |
6215 | if (section_count != 0) |
6216 | { | |
6217 | unsigned int isec = 0; | |
6218 | ||
53020534 | 6219 | for (section = first_section; |
84d1d650 L |
6220 | section != NULL; |
6221 | section = section->next) | |
6222 | { | |
6223 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6224 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
6225 | { |
6226 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
6227 | if (section->lma < lowest_section->lma) |
6228 | lowest_section = section; | |
6229 | if ((section->flags & SEC_ALLOC) != 0) | |
6230 | { | |
6231 | bfd_vma seg_off; | |
6232 | ||
6233 | /* Section lmas are set up from PT_LOAD header | |
6234 | p_paddr in _bfd_elf_make_section_from_shdr. | |
6235 | If this header has a p_paddr that disagrees | |
6236 | with the section lma, flag the p_paddr as | |
6237 | invalid. */ | |
6238 | if ((section->flags & SEC_LOAD) != 0) | |
6239 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
6240 | else | |
6241 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
6242 | if (section->lma - segment->p_paddr != seg_off) | |
6243 | map->p_paddr_valid = FALSE; | |
6244 | } | |
53020534 L |
6245 | if (isec == section_count) |
6246 | break; | |
6247 | } | |
84d1d650 L |
6248 | } |
6249 | } | |
6250 | ||
a76e6f2f AM |
6251 | if (map->includes_filehdr && lowest_section != NULL) |
6252 | /* We need to keep the space used by the headers fixed. */ | |
6253 | map->header_size = lowest_section->vma - segment->p_vaddr; | |
d324f6d6 | 6254 | |
a76e6f2f AM |
6255 | if (!map->includes_phdrs |
6256 | && !map->includes_filehdr | |
6257 | && map->p_paddr_valid) | |
6258 | /* There is some other padding before the first section. */ | |
6259 | map->p_vaddr_offset = ((lowest_section ? lowest_section->lma : 0) | |
6260 | - segment->p_paddr); | |
6261 | ||
84d1d650 L |
6262 | map->count = section_count; |
6263 | *pointer_to_map = map; | |
6264 | pointer_to_map = &map->next; | |
6265 | } | |
6266 | ||
6267 | elf_tdata (obfd)->segment_map = map_first; | |
6268 | return TRUE; | |
6269 | } | |
6270 | ||
6271 | /* Copy private BFD data. This copies or rewrites ELF program header | |
6272 | information. */ | |
6273 | ||
6274 | static bfd_boolean | |
6275 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
6276 | { | |
84d1d650 L |
6277 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
6278 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6279 | return TRUE; | |
6280 | ||
6281 | if (elf_tdata (ibfd)->phdr == NULL) | |
6282 | return TRUE; | |
6283 | ||
6284 | if (ibfd->xvec == obfd->xvec) | |
6285 | { | |
cb3ff1e5 NC |
6286 | /* Check to see if any sections in the input BFD |
6287 | covered by ELF program header have changed. */ | |
d55ce4e2 | 6288 | Elf_Internal_Phdr *segment; |
84d1d650 L |
6289 | asection *section, *osec; |
6290 | unsigned int i, num_segments; | |
6291 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
6292 | const struct elf_backend_data *bed; |
6293 | ||
6294 | bed = get_elf_backend_data (ibfd); | |
6295 | ||
6296 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
6297 | if (bed->want_p_paddr_set_to_zero) | |
6298 | goto rewrite; | |
84d1d650 L |
6299 | |
6300 | /* Initialize the segment mark field. */ | |
6301 | for (section = obfd->sections; section != NULL; | |
6302 | section = section->next) | |
6303 | section->segment_mark = FALSE; | |
6304 | ||
6305 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
6306 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6307 | i < num_segments; | |
6308 | i++, segment++) | |
6309 | { | |
5f6999aa NC |
6310 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
6311 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
6312 | which severly confuses things, so always regenerate the segment | |
6313 | map in this case. */ | |
6314 | if (segment->p_paddr == 0 | |
6315 | && segment->p_memsz == 0 | |
6316 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 6317 | goto rewrite; |
5f6999aa | 6318 | |
84d1d650 L |
6319 | for (section = ibfd->sections; |
6320 | section != NULL; section = section->next) | |
6321 | { | |
6322 | /* We mark the output section so that we know it comes | |
6323 | from the input BFD. */ | |
6324 | osec = section->output_section; | |
6325 | if (osec) | |
6326 | osec->segment_mark = TRUE; | |
6327 | ||
6328 | /* Check if this section is covered by the segment. */ | |
6329 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 6330 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
6331 | { |
6332 | /* FIXME: Check if its output section is changed or | |
6333 | removed. What else do we need to check? */ | |
6334 | if (osec == NULL | |
6335 | || section->flags != osec->flags | |
6336 | || section->lma != osec->lma | |
6337 | || section->vma != osec->vma | |
6338 | || section->size != osec->size | |
6339 | || section->rawsize != osec->rawsize | |
6340 | || section->alignment_power != osec->alignment_power) | |
6341 | goto rewrite; | |
6342 | } | |
6343 | } | |
6344 | } | |
6345 | ||
cb3ff1e5 | 6346 | /* Check to see if any output section do not come from the |
84d1d650 L |
6347 | input BFD. */ |
6348 | for (section = obfd->sections; section != NULL; | |
6349 | section = section->next) | |
6350 | { | |
6351 | if (section->segment_mark == FALSE) | |
6352 | goto rewrite; | |
6353 | else | |
6354 | section->segment_mark = FALSE; | |
6355 | } | |
6356 | ||
6357 | return copy_elf_program_header (ibfd, obfd); | |
6358 | } | |
6359 | ||
6360 | rewrite: | |
f1d85785 L |
6361 | if (ibfd->xvec == obfd->xvec) |
6362 | { | |
6363 | /* When rewriting program header, set the output maxpagesize to | |
6364 | the maximum alignment of input PT_LOAD segments. */ | |
6365 | Elf_Internal_Phdr *segment; | |
6366 | unsigned int i; | |
6367 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
6368 | bfd_vma maxpagesize = 0; | |
6369 | ||
6370 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6371 | i < num_segments; | |
6372 | i++, segment++) | |
6373 | if (segment->p_type == PT_LOAD | |
6374 | && maxpagesize < segment->p_align) | |
6375 | maxpagesize = segment->p_align; | |
6376 | ||
6377 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
6378 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
6379 | } | |
6380 | ||
84d1d650 L |
6381 | return rewrite_elf_program_header (ibfd, obfd); |
6382 | } | |
6383 | ||
ccd2ec6a L |
6384 | /* Initialize private output section information from input section. */ |
6385 | ||
6386 | bfd_boolean | |
6387 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
6388 | asection *isec, | |
6389 | bfd *obfd, | |
6390 | asection *osec, | |
6391 | struct bfd_link_info *link_info) | |
6392 | ||
6393 | { | |
6394 | Elf_Internal_Shdr *ihdr, *ohdr; | |
dfa7b0b8 | 6395 | bfd_boolean final_link = link_info != NULL && !link_info->relocatable; |
ccd2ec6a L |
6396 | |
6397 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6398 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
6399 | return TRUE; | |
6400 | ||
ba85c43e NC |
6401 | BFD_ASSERT (elf_section_data (osec) != NULL); |
6402 | ||
dfa7b0b8 AM |
6403 | /* For objcopy and relocatable link, don't copy the output ELF |
6404 | section type from input if the output BFD section flags have been | |
6405 | set to something different. For a final link allow some flags | |
6406 | that the linker clears to differ. */ | |
42bb2e33 | 6407 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
6408 | && (osec->flags == isec->flags |
6409 | || (final_link | |
6410 | && ((osec->flags ^ isec->flags) | |
0814be7d | 6411 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 6412 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
6413 | |
6414 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
6415 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
6416 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a L |
6417 | |
6418 | /* Set things up for objcopy and relocatable link. The output | |
6419 | SHT_GROUP section will have its elf_next_in_group pointing back | |
6420 | to the input group members. Ignore linker created group section. | |
6421 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
dfa7b0b8 | 6422 | if (!final_link) |
ccd2ec6a L |
6423 | { |
6424 | if (elf_sec_group (isec) == NULL | |
6425 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0) | |
6426 | { | |
6427 | if (elf_section_flags (isec) & SHF_GROUP) | |
6428 | elf_section_flags (osec) |= SHF_GROUP; | |
6429 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
9659de1c | 6430 | elf_section_data (osec)->group = elf_section_data (isec)->group; |
ccd2ec6a L |
6431 | } |
6432 | } | |
6433 | ||
6434 | ihdr = &elf_section_data (isec)->this_hdr; | |
6435 | ||
6436 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
6437 | don't use the output section of the linked-to section since it | |
6438 | may be NULL at this point. */ | |
6439 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
6440 | { | |
6441 | ohdr = &elf_section_data (osec)->this_hdr; | |
6442 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
6443 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
6444 | } | |
6445 | ||
6446 | osec->use_rela_p = isec->use_rela_p; | |
6447 | ||
6448 | return TRUE; | |
6449 | } | |
6450 | ||
252b5132 RH |
6451 | /* Copy private section information. This copies over the entsize |
6452 | field, and sometimes the info field. */ | |
6453 | ||
b34976b6 | 6454 | bfd_boolean |
217aa764 AM |
6455 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
6456 | asection *isec, | |
6457 | bfd *obfd, | |
6458 | asection *osec) | |
252b5132 RH |
6459 | { |
6460 | Elf_Internal_Shdr *ihdr, *ohdr; | |
6461 | ||
6462 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
6463 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 6464 | return TRUE; |
252b5132 | 6465 | |
252b5132 RH |
6466 | ihdr = &elf_section_data (isec)->this_hdr; |
6467 | ohdr = &elf_section_data (osec)->this_hdr; | |
6468 | ||
6469 | ohdr->sh_entsize = ihdr->sh_entsize; | |
6470 | ||
6471 | if (ihdr->sh_type == SHT_SYMTAB | |
6472 | || ihdr->sh_type == SHT_DYNSYM | |
6473 | || ihdr->sh_type == SHT_GNU_verneed | |
6474 | || ihdr->sh_type == SHT_GNU_verdef) | |
6475 | ohdr->sh_info = ihdr->sh_info; | |
6476 | ||
ccd2ec6a L |
6477 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
6478 | NULL); | |
252b5132 RH |
6479 | } |
6480 | ||
d0bf826b AM |
6481 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
6482 | necessary if we are removing either the SHT_GROUP section or any of | |
6483 | the group member sections. DISCARDED is the value that a section's | |
6484 | output_section has if the section will be discarded, NULL when this | |
6485 | function is called from objcopy, bfd_abs_section_ptr when called | |
6486 | from the linker. */ | |
80fccad2 BW |
6487 | |
6488 | bfd_boolean | |
d0bf826b | 6489 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 6490 | { |
30288845 AM |
6491 | asection *isec; |
6492 | ||
30288845 | 6493 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 6494 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
6495 | { |
6496 | asection *first = elf_next_in_group (isec); | |
6497 | asection *s = first; | |
d0bf826b AM |
6498 | bfd_size_type removed = 0; |
6499 | ||
30288845 AM |
6500 | while (s != NULL) |
6501 | { | |
415f38a6 AM |
6502 | /* If this member section is being output but the |
6503 | SHT_GROUP section is not, then clear the group info | |
6504 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
6505 | if (s->output_section != discarded |
6506 | && isec->output_section == discarded) | |
30288845 AM |
6507 | { |
6508 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
6509 | elf_group_name (s->output_section) = NULL; | |
6510 | } | |
415f38a6 AM |
6511 | /* Conversely, if the member section is not being output |
6512 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
6513 | else if (s->output_section == discarded |
6514 | && isec->output_section != discarded) | |
6515 | removed += 4; | |
30288845 AM |
6516 | s = elf_next_in_group (s); |
6517 | if (s == first) | |
6518 | break; | |
6519 | } | |
d0bf826b AM |
6520 | if (removed != 0) |
6521 | { | |
6522 | if (discarded != NULL) | |
6523 | { | |
6524 | /* If we've been called for ld -r, then we need to | |
6525 | adjust the input section size. This function may | |
6526 | be called multiple times, so save the original | |
6527 | size. */ | |
6528 | if (isec->rawsize == 0) | |
6529 | isec->rawsize = isec->size; | |
6530 | isec->size = isec->rawsize - removed; | |
6531 | } | |
6532 | else | |
6533 | { | |
6534 | /* Adjust the output section size when called from | |
6535 | objcopy. */ | |
6536 | isec->output_section->size -= removed; | |
6537 | } | |
6538 | } | |
30288845 AM |
6539 | } |
6540 | ||
80fccad2 BW |
6541 | return TRUE; |
6542 | } | |
6543 | ||
d0bf826b AM |
6544 | /* Copy private header information. */ |
6545 | ||
6546 | bfd_boolean | |
6547 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
6548 | { | |
6549 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6550 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6551 | return TRUE; | |
6552 | ||
6553 | /* Copy over private BFD data if it has not already been copied. | |
6554 | This must be done here, rather than in the copy_private_bfd_data | |
6555 | entry point, because the latter is called after the section | |
6556 | contents have been set, which means that the program headers have | |
6557 | already been worked out. */ | |
6558 | if (elf_tdata (obfd)->segment_map == NULL && elf_tdata (ibfd)->phdr != NULL) | |
6559 | { | |
6560 | if (! copy_private_bfd_data (ibfd, obfd)) | |
6561 | return FALSE; | |
6562 | } | |
6563 | ||
6564 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
6565 | } | |
6566 | ||
252b5132 RH |
6567 | /* Copy private symbol information. If this symbol is in a section |
6568 | which we did not map into a BFD section, try to map the section | |
6569 | index correctly. We use special macro definitions for the mapped | |
6570 | section indices; these definitions are interpreted by the | |
6571 | swap_out_syms function. */ | |
6572 | ||
9ad5cbcf AM |
6573 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
6574 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
6575 | #define MAP_STRTAB (SHN_HIOS + 3) | |
6576 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
6577 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 6578 | |
b34976b6 | 6579 | bfd_boolean |
217aa764 AM |
6580 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
6581 | asymbol *isymarg, | |
6582 | bfd *obfd, | |
6583 | asymbol *osymarg) | |
252b5132 RH |
6584 | { |
6585 | elf_symbol_type *isym, *osym; | |
6586 | ||
6587 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6588 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 6589 | return TRUE; |
252b5132 RH |
6590 | |
6591 | isym = elf_symbol_from (ibfd, isymarg); | |
6592 | osym = elf_symbol_from (obfd, osymarg); | |
6593 | ||
6594 | if (isym != NULL | |
8424d8f5 | 6595 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
6596 | && osym != NULL |
6597 | && bfd_is_abs_section (isym->symbol.section)) | |
6598 | { | |
6599 | unsigned int shndx; | |
6600 | ||
6601 | shndx = isym->internal_elf_sym.st_shndx; | |
6602 | if (shndx == elf_onesymtab (ibfd)) | |
6603 | shndx = MAP_ONESYMTAB; | |
6604 | else if (shndx == elf_dynsymtab (ibfd)) | |
6605 | shndx = MAP_DYNSYMTAB; | |
6606 | else if (shndx == elf_tdata (ibfd)->strtab_section) | |
6607 | shndx = MAP_STRTAB; | |
6608 | else if (shndx == elf_tdata (ibfd)->shstrtab_section) | |
6609 | shndx = MAP_SHSTRTAB; | |
9ad5cbcf AM |
6610 | else if (shndx == elf_tdata (ibfd)->symtab_shndx_section) |
6611 | shndx = MAP_SYM_SHNDX; | |
252b5132 RH |
6612 | osym->internal_elf_sym.st_shndx = shndx; |
6613 | } | |
6614 | ||
b34976b6 | 6615 | return TRUE; |
252b5132 RH |
6616 | } |
6617 | ||
6618 | /* Swap out the symbols. */ | |
6619 | ||
b34976b6 | 6620 | static bfd_boolean |
217aa764 AM |
6621 | swap_out_syms (bfd *abfd, |
6622 | struct bfd_strtab_hash **sttp, | |
6623 | int relocatable_p) | |
252b5132 | 6624 | { |
9c5bfbb7 | 6625 | const struct elf_backend_data *bed; |
079e9a2f AM |
6626 | int symcount; |
6627 | asymbol **syms; | |
6628 | struct bfd_strtab_hash *stt; | |
6629 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 6630 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 6631 | Elf_Internal_Shdr *symstrtab_hdr; |
f075ee0c AM |
6632 | bfd_byte *outbound_syms; |
6633 | bfd_byte *outbound_shndx; | |
079e9a2f AM |
6634 | int idx; |
6635 | bfd_size_type amt; | |
174fd7f9 | 6636 | bfd_boolean name_local_sections; |
252b5132 RH |
6637 | |
6638 | if (!elf_map_symbols (abfd)) | |
b34976b6 | 6639 | return FALSE; |
252b5132 | 6640 | |
c044fabd | 6641 | /* Dump out the symtabs. */ |
079e9a2f AM |
6642 | stt = _bfd_elf_stringtab_init (); |
6643 | if (stt == NULL) | |
b34976b6 | 6644 | return FALSE; |
252b5132 | 6645 | |
079e9a2f AM |
6646 | bed = get_elf_backend_data (abfd); |
6647 | symcount = bfd_get_symcount (abfd); | |
6648 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6649 | symtab_hdr->sh_type = SHT_SYMTAB; | |
6650 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
6651 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
6652 | symtab_hdr->sh_info = elf_num_locals (abfd) + 1; | |
72de5009 | 6653 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
6654 | |
6655 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
6656 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
6657 | ||
a50b1753 NC |
6658 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
6659 | bed->s->sizeof_sym); | |
079e9a2f | 6660 | if (outbound_syms == NULL) |
5ed6aba4 NC |
6661 | { |
6662 | _bfd_stringtab_free (stt); | |
6663 | return FALSE; | |
6664 | } | |
217aa764 | 6665 | symtab_hdr->contents = outbound_syms; |
252b5132 | 6666 | |
9ad5cbcf AM |
6667 | outbound_shndx = NULL; |
6668 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
6669 | if (symtab_shndx_hdr->sh_name != 0) | |
6670 | { | |
6671 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
a50b1753 NC |
6672 | outbound_shndx = (bfd_byte *) |
6673 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
9ad5cbcf | 6674 | if (outbound_shndx == NULL) |
5ed6aba4 NC |
6675 | { |
6676 | _bfd_stringtab_free (stt); | |
6677 | return FALSE; | |
6678 | } | |
6679 | ||
9ad5cbcf AM |
6680 | symtab_shndx_hdr->contents = outbound_shndx; |
6681 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
6682 | symtab_shndx_hdr->sh_size = amt; | |
6683 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
6684 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
6685 | } | |
6686 | ||
589e6347 | 6687 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
6688 | { |
6689 | /* Fill in zeroth symbol and swap it out. */ | |
6690 | Elf_Internal_Sym sym; | |
6691 | sym.st_name = 0; | |
6692 | sym.st_value = 0; | |
6693 | sym.st_size = 0; | |
6694 | sym.st_info = 0; | |
6695 | sym.st_other = 0; | |
6696 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 6697 | sym.st_target_internal = 0; |
9ad5cbcf | 6698 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6699 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6700 | if (outbound_shndx != NULL) |
6701 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6702 | } |
252b5132 | 6703 | |
174fd7f9 RS |
6704 | name_local_sections |
6705 | = (bed->elf_backend_name_local_section_symbols | |
6706 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
6707 | ||
079e9a2f AM |
6708 | syms = bfd_get_outsymbols (abfd); |
6709 | for (idx = 0; idx < symcount; idx++) | |
252b5132 | 6710 | { |
252b5132 | 6711 | Elf_Internal_Sym sym; |
079e9a2f AM |
6712 | bfd_vma value = syms[idx]->value; |
6713 | elf_symbol_type *type_ptr; | |
6714 | flagword flags = syms[idx]->flags; | |
6715 | int type; | |
252b5132 | 6716 | |
174fd7f9 RS |
6717 | if (!name_local_sections |
6718 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
6719 | { |
6720 | /* Local section symbols have no name. */ | |
6721 | sym.st_name = 0; | |
6722 | } | |
6723 | else | |
6724 | { | |
6725 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |
6726 | syms[idx]->name, | |
b34976b6 | 6727 | TRUE, FALSE); |
079e9a2f | 6728 | if (sym.st_name == (unsigned long) -1) |
5ed6aba4 NC |
6729 | { |
6730 | _bfd_stringtab_free (stt); | |
6731 | return FALSE; | |
6732 | } | |
079e9a2f | 6733 | } |
252b5132 | 6734 | |
079e9a2f | 6735 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 6736 | |
079e9a2f AM |
6737 | if ((flags & BSF_SECTION_SYM) == 0 |
6738 | && bfd_is_com_section (syms[idx]->section)) | |
6739 | { | |
6740 | /* ELF common symbols put the alignment into the `value' field, | |
6741 | and the size into the `size' field. This is backwards from | |
6742 | how BFD handles it, so reverse it here. */ | |
6743 | sym.st_size = value; | |
6744 | if (type_ptr == NULL | |
6745 | || type_ptr->internal_elf_sym.st_value == 0) | |
6746 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
6747 | else | |
6748 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
6749 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
6750 | (abfd, syms[idx]->section); | |
6751 | } | |
6752 | else | |
6753 | { | |
6754 | asection *sec = syms[idx]->section; | |
cb33740c | 6755 | unsigned int shndx; |
252b5132 | 6756 | |
079e9a2f AM |
6757 | if (sec->output_section) |
6758 | { | |
6759 | value += sec->output_offset; | |
6760 | sec = sec->output_section; | |
6761 | } | |
589e6347 | 6762 | |
079e9a2f AM |
6763 | /* Don't add in the section vma for relocatable output. */ |
6764 | if (! relocatable_p) | |
6765 | value += sec->vma; | |
6766 | sym.st_value = value; | |
6767 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
6768 | ||
6769 | if (bfd_is_abs_section (sec) | |
6770 | && type_ptr != NULL | |
6771 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
6772 | { | |
6773 | /* This symbol is in a real ELF section which we did | |
6774 | not create as a BFD section. Undo the mapping done | |
6775 | by copy_private_symbol_data. */ | |
6776 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
6777 | switch (shndx) | |
6778 | { | |
6779 | case MAP_ONESYMTAB: | |
6780 | shndx = elf_onesymtab (abfd); | |
6781 | break; | |
6782 | case MAP_DYNSYMTAB: | |
6783 | shndx = elf_dynsymtab (abfd); | |
6784 | break; | |
6785 | case MAP_STRTAB: | |
6786 | shndx = elf_tdata (abfd)->strtab_section; | |
6787 | break; | |
6788 | case MAP_SHSTRTAB: | |
6789 | shndx = elf_tdata (abfd)->shstrtab_section; | |
6790 | break; | |
9ad5cbcf AM |
6791 | case MAP_SYM_SHNDX: |
6792 | shndx = elf_tdata (abfd)->symtab_shndx_section; | |
6793 | break; | |
079e9a2f | 6794 | default: |
15bc576a | 6795 | shndx = SHN_ABS; |
079e9a2f AM |
6796 | break; |
6797 | } | |
6798 | } | |
6799 | else | |
6800 | { | |
6801 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 6802 | |
cb33740c | 6803 | if (shndx == SHN_BAD) |
079e9a2f AM |
6804 | { |
6805 | asection *sec2; | |
6806 | ||
6807 | /* Writing this would be a hell of a lot easier if | |
6808 | we had some decent documentation on bfd, and | |
6809 | knew what to expect of the library, and what to | |
6810 | demand of applications. For example, it | |
6811 | appears that `objcopy' might not set the | |
6812 | section of a symbol to be a section that is | |
6813 | actually in the output file. */ | |
6814 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
589e6347 NC |
6815 | if (sec2 == NULL) |
6816 | { | |
6817 | _bfd_error_handler (_("\ | |
6818 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
6819 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
6820 | sec->name); | |
811072d8 | 6821 | bfd_set_error (bfd_error_invalid_operation); |
5ed6aba4 | 6822 | _bfd_stringtab_free (stt); |
589e6347 NC |
6823 | return FALSE; |
6824 | } | |
811072d8 | 6825 | |
079e9a2f | 6826 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); |
cb33740c | 6827 | BFD_ASSERT (shndx != SHN_BAD); |
079e9a2f AM |
6828 | } |
6829 | } | |
252b5132 | 6830 | |
079e9a2f AM |
6831 | sym.st_shndx = shndx; |
6832 | } | |
252b5132 | 6833 | |
13ae64f3 JJ |
6834 | if ((flags & BSF_THREAD_LOCAL) != 0) |
6835 | type = STT_TLS; | |
d8045f23 NC |
6836 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
6837 | type = STT_GNU_IFUNC; | |
13ae64f3 | 6838 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
6839 | type = STT_FUNC; |
6840 | else if ((flags & BSF_OBJECT) != 0) | |
6841 | type = STT_OBJECT; | |
d9352518 DB |
6842 | else if ((flags & BSF_RELC) != 0) |
6843 | type = STT_RELC; | |
6844 | else if ((flags & BSF_SRELC) != 0) | |
6845 | type = STT_SRELC; | |
079e9a2f AM |
6846 | else |
6847 | type = STT_NOTYPE; | |
252b5132 | 6848 | |
13ae64f3 JJ |
6849 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
6850 | type = STT_TLS; | |
6851 | ||
589e6347 | 6852 | /* Processor-specific types. */ |
079e9a2f AM |
6853 | if (type_ptr != NULL |
6854 | && bed->elf_backend_get_symbol_type) | |
6855 | type = ((*bed->elf_backend_get_symbol_type) | |
6856 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 6857 | |
079e9a2f AM |
6858 | if (flags & BSF_SECTION_SYM) |
6859 | { | |
6860 | if (flags & BSF_GLOBAL) | |
6861 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
6862 | else | |
6863 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
6864 | } | |
6865 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 6866 | { |
504b7d20 | 6867 | #ifdef USE_STT_COMMON |
0a40daed MK |
6868 | if (type == STT_OBJECT) |
6869 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_COMMON); | |
6870 | else | |
504b7d20 | 6871 | #endif |
c91e322a | 6872 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); |
0a40daed | 6873 | } |
079e9a2f AM |
6874 | else if (bfd_is_und_section (syms[idx]->section)) |
6875 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
6876 | ? STB_WEAK | |
6877 | : STB_GLOBAL), | |
6878 | type); | |
6879 | else if (flags & BSF_FILE) | |
6880 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
6881 | else | |
6882 | { | |
6883 | int bind = STB_LOCAL; | |
252b5132 | 6884 | |
079e9a2f AM |
6885 | if (flags & BSF_LOCAL) |
6886 | bind = STB_LOCAL; | |
3e7a7d11 NC |
6887 | else if (flags & BSF_GNU_UNIQUE) |
6888 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
6889 | else if (flags & BSF_WEAK) |
6890 | bind = STB_WEAK; | |
6891 | else if (flags & BSF_GLOBAL) | |
6892 | bind = STB_GLOBAL; | |
252b5132 | 6893 | |
079e9a2f AM |
6894 | sym.st_info = ELF_ST_INFO (bind, type); |
6895 | } | |
252b5132 | 6896 | |
079e9a2f | 6897 | if (type_ptr != NULL) |
35fc36a8 RS |
6898 | { |
6899 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
6900 | sym.st_target_internal | |
6901 | = type_ptr->internal_elf_sym.st_target_internal; | |
6902 | } | |
079e9a2f | 6903 | else |
35fc36a8 RS |
6904 | { |
6905 | sym.st_other = 0; | |
6906 | sym.st_target_internal = 0; | |
6907 | } | |
252b5132 | 6908 | |
9ad5cbcf | 6909 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 6910 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
6911 | if (outbound_shndx != NULL) |
6912 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 6913 | } |
252b5132 | 6914 | |
079e9a2f AM |
6915 | *sttp = stt; |
6916 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |
6917 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
252b5132 | 6918 | |
079e9a2f AM |
6919 | symstrtab_hdr->sh_flags = 0; |
6920 | symstrtab_hdr->sh_addr = 0; | |
6921 | symstrtab_hdr->sh_entsize = 0; | |
6922 | symstrtab_hdr->sh_link = 0; | |
6923 | symstrtab_hdr->sh_info = 0; | |
6924 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 6925 | |
b34976b6 | 6926 | return TRUE; |
252b5132 RH |
6927 | } |
6928 | ||
6929 | /* Return the number of bytes required to hold the symtab vector. | |
6930 | ||
6931 | Note that we base it on the count plus 1, since we will null terminate | |
6932 | the vector allocated based on this size. However, the ELF symbol table | |
6933 | always has a dummy entry as symbol #0, so it ends up even. */ | |
6934 | ||
6935 | long | |
217aa764 | 6936 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
6937 | { |
6938 | long symcount; | |
6939 | long symtab_size; | |
6940 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
6941 | ||
6942 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
6943 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
6944 | if (symcount > 0) | |
6945 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
6946 | |
6947 | return symtab_size; | |
6948 | } | |
6949 | ||
6950 | long | |
217aa764 | 6951 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
6952 | { |
6953 | long symcount; | |
6954 | long symtab_size; | |
6955 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
6956 | ||
6957 | if (elf_dynsymtab (abfd) == 0) | |
6958 | { | |
6959 | bfd_set_error (bfd_error_invalid_operation); | |
6960 | return -1; | |
6961 | } | |
6962 | ||
6963 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
6964 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
6965 | if (symcount > 0) | |
6966 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
6967 | |
6968 | return symtab_size; | |
6969 | } | |
6970 | ||
6971 | long | |
217aa764 AM |
6972 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
6973 | sec_ptr asect) | |
252b5132 RH |
6974 | { |
6975 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
6976 | } | |
6977 | ||
6978 | /* Canonicalize the relocs. */ | |
6979 | ||
6980 | long | |
217aa764 AM |
6981 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
6982 | sec_ptr section, | |
6983 | arelent **relptr, | |
6984 | asymbol **symbols) | |
252b5132 RH |
6985 | { |
6986 | arelent *tblptr; | |
6987 | unsigned int i; | |
9c5bfbb7 | 6988 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6989 | |
b34976b6 | 6990 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
6991 | return -1; |
6992 | ||
6993 | tblptr = section->relocation; | |
6994 | for (i = 0; i < section->reloc_count; i++) | |
6995 | *relptr++ = tblptr++; | |
6996 | ||
6997 | *relptr = NULL; | |
6998 | ||
6999 | return section->reloc_count; | |
7000 | } | |
7001 | ||
7002 | long | |
6cee3f79 | 7003 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 7004 | { |
9c5bfbb7 | 7005 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7006 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
7007 | |
7008 | if (symcount >= 0) | |
7009 | bfd_get_symcount (abfd) = symcount; | |
7010 | return symcount; | |
7011 | } | |
7012 | ||
7013 | long | |
217aa764 AM |
7014 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
7015 | asymbol **allocation) | |
252b5132 | 7016 | { |
9c5bfbb7 | 7017 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 7018 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
7019 | |
7020 | if (symcount >= 0) | |
7021 | bfd_get_dynamic_symcount (abfd) = symcount; | |
7022 | return symcount; | |
252b5132 RH |
7023 | } |
7024 | ||
8615f3f2 AM |
7025 | /* Return the size required for the dynamic reloc entries. Any loadable |
7026 | section that was actually installed in the BFD, and has type SHT_REL | |
7027 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
7028 | dynamic reloc section. */ | |
252b5132 RH |
7029 | |
7030 | long | |
217aa764 | 7031 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
7032 | { |
7033 | long ret; | |
7034 | asection *s; | |
7035 | ||
7036 | if (elf_dynsymtab (abfd) == 0) | |
7037 | { | |
7038 | bfd_set_error (bfd_error_invalid_operation); | |
7039 | return -1; | |
7040 | } | |
7041 | ||
7042 | ret = sizeof (arelent *); | |
7043 | for (s = abfd->sections; s != NULL; s = s->next) | |
266b05cf | 7044 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7045 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7046 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 7047 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
7048 | * sizeof (arelent *)); |
7049 | ||
7050 | return ret; | |
7051 | } | |
7052 | ||
8615f3f2 AM |
7053 | /* Canonicalize the dynamic relocation entries. Note that we return the |
7054 | dynamic relocations as a single block, although they are actually | |
7055 | associated with particular sections; the interface, which was | |
7056 | designed for SunOS style shared libraries, expects that there is only | |
7057 | one set of dynamic relocs. Any loadable section that was actually | |
7058 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
7059 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
7060 | |
7061 | long | |
217aa764 AM |
7062 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
7063 | arelent **storage, | |
7064 | asymbol **syms) | |
252b5132 | 7065 | { |
217aa764 | 7066 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
7067 | asection *s; |
7068 | long ret; | |
7069 | ||
7070 | if (elf_dynsymtab (abfd) == 0) | |
7071 | { | |
7072 | bfd_set_error (bfd_error_invalid_operation); | |
7073 | return -1; | |
7074 | } | |
7075 | ||
7076 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
7077 | ret = 0; | |
7078 | for (s = abfd->sections; s != NULL; s = s->next) | |
7079 | { | |
266b05cf | 7080 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
7081 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
7082 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
7083 | { | |
7084 | arelent *p; | |
7085 | long count, i; | |
7086 | ||
b34976b6 | 7087 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 7088 | return -1; |
eea6121a | 7089 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
7090 | p = s->relocation; |
7091 | for (i = 0; i < count; i++) | |
7092 | *storage++ = p++; | |
7093 | ret += count; | |
7094 | } | |
7095 | } | |
7096 | ||
7097 | *storage = NULL; | |
7098 | ||
7099 | return ret; | |
7100 | } | |
7101 | \f | |
7102 | /* Read in the version information. */ | |
7103 | ||
b34976b6 | 7104 | bfd_boolean |
fc0e6df6 | 7105 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
7106 | { |
7107 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
7108 | unsigned int freeidx = 0; |
7109 | ||
7110 | if (elf_dynverref (abfd) != 0) | |
7111 | { | |
7112 | Elf_Internal_Shdr *hdr; | |
7113 | Elf_External_Verneed *everneed; | |
7114 | Elf_Internal_Verneed *iverneed; | |
7115 | unsigned int i; | |
d0fb9a8d | 7116 | bfd_byte *contents_end; |
fc0e6df6 PB |
7117 | |
7118 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
7119 | ||
a50b1753 NC |
7120 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
7121 | bfd_zalloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); | |
fc0e6df6 PB |
7122 | if (elf_tdata (abfd)->verref == NULL) |
7123 | goto error_return; | |
7124 | ||
7125 | elf_tdata (abfd)->cverrefs = hdr->sh_info; | |
7126 | ||
a50b1753 | 7127 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
fc0e6df6 | 7128 | if (contents == NULL) |
d0fb9a8d JJ |
7129 | { |
7130 | error_return_verref: | |
7131 | elf_tdata (abfd)->verref = NULL; | |
7132 | elf_tdata (abfd)->cverrefs = 0; | |
7133 | goto error_return; | |
7134 | } | |
fc0e6df6 PB |
7135 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
7136 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 7137 | goto error_return_verref; |
fc0e6df6 | 7138 | |
d0fb9a8d JJ |
7139 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verneed)) |
7140 | goto error_return_verref; | |
7141 | ||
7142 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
7143 | == sizeof (Elf_External_Vernaux)); | |
7144 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
7145 | everneed = (Elf_External_Verneed *) contents; |
7146 | iverneed = elf_tdata (abfd)->verref; | |
7147 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
7148 | { | |
7149 | Elf_External_Vernaux *evernaux; | |
7150 | Elf_Internal_Vernaux *ivernaux; | |
7151 | unsigned int j; | |
7152 | ||
7153 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
7154 | ||
7155 | iverneed->vn_bfd = abfd; | |
7156 | ||
7157 | iverneed->vn_filename = | |
7158 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7159 | iverneed->vn_file); | |
7160 | if (iverneed->vn_filename == NULL) | |
d0fb9a8d | 7161 | goto error_return_verref; |
fc0e6df6 | 7162 | |
d0fb9a8d JJ |
7163 | if (iverneed->vn_cnt == 0) |
7164 | iverneed->vn_auxptr = NULL; | |
7165 | else | |
7166 | { | |
a50b1753 NC |
7167 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
7168 | bfd_alloc2 (abfd, iverneed->vn_cnt, | |
7169 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
7170 | if (iverneed->vn_auxptr == NULL) |
7171 | goto error_return_verref; | |
7172 | } | |
7173 | ||
7174 | if (iverneed->vn_aux | |
7175 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7176 | goto error_return_verref; | |
fc0e6df6 PB |
7177 | |
7178 | evernaux = ((Elf_External_Vernaux *) | |
7179 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
7180 | ivernaux = iverneed->vn_auxptr; | |
7181 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
7182 | { | |
7183 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
7184 | ||
7185 | ivernaux->vna_nodename = | |
7186 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7187 | ivernaux->vna_name); | |
7188 | if (ivernaux->vna_nodename == NULL) | |
d0fb9a8d | 7189 | goto error_return_verref; |
fc0e6df6 PB |
7190 | |
7191 | if (j + 1 < iverneed->vn_cnt) | |
7192 | ivernaux->vna_nextptr = ivernaux + 1; | |
7193 | else | |
7194 | ivernaux->vna_nextptr = NULL; | |
7195 | ||
d0fb9a8d JJ |
7196 | if (ivernaux->vna_next |
7197 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
7198 | goto error_return_verref; | |
7199 | ||
fc0e6df6 PB |
7200 | evernaux = ((Elf_External_Vernaux *) |
7201 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
7202 | ||
7203 | if (ivernaux->vna_other > freeidx) | |
7204 | freeidx = ivernaux->vna_other; | |
7205 | } | |
7206 | ||
7207 | if (i + 1 < hdr->sh_info) | |
7208 | iverneed->vn_nextref = iverneed + 1; | |
7209 | else | |
7210 | iverneed->vn_nextref = NULL; | |
7211 | ||
d0fb9a8d JJ |
7212 | if (iverneed->vn_next |
7213 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
7214 | goto error_return_verref; | |
7215 | ||
fc0e6df6 PB |
7216 | everneed = ((Elf_External_Verneed *) |
7217 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
7218 | } | |
7219 | ||
7220 | free (contents); | |
7221 | contents = NULL; | |
7222 | } | |
252b5132 RH |
7223 | |
7224 | if (elf_dynverdef (abfd) != 0) | |
7225 | { | |
7226 | Elf_Internal_Shdr *hdr; | |
7227 | Elf_External_Verdef *everdef; | |
7228 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
7229 | Elf_Internal_Verdef *iverdefarr; |
7230 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 7231 | unsigned int i; |
062e2358 | 7232 | unsigned int maxidx; |
d0fb9a8d | 7233 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
7234 | |
7235 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
7236 | ||
a50b1753 | 7237 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 RH |
7238 | if (contents == NULL) |
7239 | goto error_return; | |
7240 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
217aa764 | 7241 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
7242 | goto error_return; |
7243 | ||
d0fb9a8d JJ |
7244 | if (hdr->sh_info && hdr->sh_size < sizeof (Elf_External_Verdef)) |
7245 | goto error_return; | |
7246 | ||
7247 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
7248 | >= sizeof (Elf_External_Verdaux)); | |
7249 | contents_end_def = contents + hdr->sh_size | |
7250 | - sizeof (Elf_External_Verdef); | |
7251 | contents_end_aux = contents + hdr->sh_size | |
7252 | - sizeof (Elf_External_Verdaux); | |
7253 | ||
f631889e UD |
7254 | /* We know the number of entries in the section but not the maximum |
7255 | index. Therefore we have to run through all entries and find | |
7256 | the maximum. */ | |
252b5132 | 7257 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
7258 | maxidx = 0; |
7259 | for (i = 0; i < hdr->sh_info; ++i) | |
7260 | { | |
7261 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
7262 | ||
062e2358 AM |
7263 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
7264 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 7265 | |
d0fb9a8d JJ |
7266 | if (iverdefmem.vd_next |
7267 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
7268 | goto error_return; | |
7269 | ||
f631889e UD |
7270 | everdef = ((Elf_External_Verdef *) |
7271 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
7272 | } | |
7273 | ||
fc0e6df6 PB |
7274 | if (default_imported_symver) |
7275 | { | |
7276 | if (freeidx > maxidx) | |
7277 | maxidx = ++freeidx; | |
7278 | else | |
7279 | freeidx = ++maxidx; | |
7280 | } | |
a50b1753 NC |
7281 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7282 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e UD |
7283 | if (elf_tdata (abfd)->verdef == NULL) |
7284 | goto error_return; | |
7285 | ||
7286 | elf_tdata (abfd)->cverdefs = maxidx; | |
7287 | ||
7288 | everdef = (Elf_External_Verdef *) contents; | |
7289 | iverdefarr = elf_tdata (abfd)->verdef; | |
7290 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
7291 | { |
7292 | Elf_External_Verdaux *everdaux; | |
7293 | Elf_Internal_Verdaux *iverdaux; | |
7294 | unsigned int j; | |
7295 | ||
f631889e UD |
7296 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
7297 | ||
d0fb9a8d JJ |
7298 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
7299 | { | |
7300 | error_return_verdef: | |
7301 | elf_tdata (abfd)->verdef = NULL; | |
7302 | elf_tdata (abfd)->cverdefs = 0; | |
7303 | goto error_return; | |
7304 | } | |
7305 | ||
f631889e UD |
7306 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
7307 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
7308 | |
7309 | iverdef->vd_bfd = abfd; | |
7310 | ||
d0fb9a8d JJ |
7311 | if (iverdef->vd_cnt == 0) |
7312 | iverdef->vd_auxptr = NULL; | |
7313 | else | |
7314 | { | |
a50b1753 NC |
7315 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7316 | bfd_alloc2 (abfd, iverdef->vd_cnt, | |
7317 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7318 | if (iverdef->vd_auxptr == NULL) |
7319 | goto error_return_verdef; | |
7320 | } | |
7321 | ||
7322 | if (iverdef->vd_aux | |
7323 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
7324 | goto error_return_verdef; | |
252b5132 RH |
7325 | |
7326 | everdaux = ((Elf_External_Verdaux *) | |
7327 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
7328 | iverdaux = iverdef->vd_auxptr; | |
7329 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
7330 | { | |
7331 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
7332 | ||
7333 | iverdaux->vda_nodename = | |
7334 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
7335 | iverdaux->vda_name); | |
7336 | if (iverdaux->vda_nodename == NULL) | |
d0fb9a8d | 7337 | goto error_return_verdef; |
252b5132 RH |
7338 | |
7339 | if (j + 1 < iverdef->vd_cnt) | |
7340 | iverdaux->vda_nextptr = iverdaux + 1; | |
7341 | else | |
7342 | iverdaux->vda_nextptr = NULL; | |
7343 | ||
d0fb9a8d JJ |
7344 | if (iverdaux->vda_next |
7345 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
7346 | goto error_return_verdef; | |
7347 | ||
252b5132 RH |
7348 | everdaux = ((Elf_External_Verdaux *) |
7349 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
7350 | } | |
7351 | ||
d0fb9a8d JJ |
7352 | if (iverdef->vd_cnt) |
7353 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 7354 | |
d0fb9a8d | 7355 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 RH |
7356 | iverdef->vd_nextdef = iverdef + 1; |
7357 | else | |
7358 | iverdef->vd_nextdef = NULL; | |
7359 | ||
7360 | everdef = ((Elf_External_Verdef *) | |
7361 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
7362 | } | |
7363 | ||
7364 | free (contents); | |
7365 | contents = NULL; | |
7366 | } | |
fc0e6df6 | 7367 | else if (default_imported_symver) |
252b5132 | 7368 | { |
fc0e6df6 PB |
7369 | if (freeidx < 3) |
7370 | freeidx = 3; | |
7371 | else | |
7372 | freeidx++; | |
252b5132 | 7373 | |
a50b1753 NC |
7374 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
7375 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); | |
fc0e6df6 | 7376 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
7377 | goto error_return; |
7378 | ||
fc0e6df6 PB |
7379 | elf_tdata (abfd)->cverdefs = freeidx; |
7380 | } | |
252b5132 | 7381 | |
fc0e6df6 PB |
7382 | /* Create a default version based on the soname. */ |
7383 | if (default_imported_symver) | |
7384 | { | |
7385 | Elf_Internal_Verdef *iverdef; | |
7386 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 7387 | |
5bb3703f | 7388 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 7389 | |
fc0e6df6 PB |
7390 | iverdef->vd_version = VER_DEF_CURRENT; |
7391 | iverdef->vd_flags = 0; | |
7392 | iverdef->vd_ndx = freeidx; | |
7393 | iverdef->vd_cnt = 1; | |
252b5132 | 7394 | |
fc0e6df6 | 7395 | iverdef->vd_bfd = abfd; |
252b5132 | 7396 | |
fc0e6df6 PB |
7397 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
7398 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 7399 | goto error_return_verdef; |
fc0e6df6 | 7400 | iverdef->vd_nextdef = NULL; |
a50b1753 NC |
7401 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
7402 | bfd_alloc (abfd, sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
7403 | if (iverdef->vd_auxptr == NULL) |
7404 | goto error_return_verdef; | |
252b5132 | 7405 | |
fc0e6df6 PB |
7406 | iverdaux = iverdef->vd_auxptr; |
7407 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
7408 | iverdaux->vda_nextptr = NULL; | |
252b5132 RH |
7409 | } |
7410 | ||
b34976b6 | 7411 | return TRUE; |
252b5132 RH |
7412 | |
7413 | error_return: | |
5ed6aba4 | 7414 | if (contents != NULL) |
252b5132 | 7415 | free (contents); |
b34976b6 | 7416 | return FALSE; |
252b5132 RH |
7417 | } |
7418 | \f | |
7419 | asymbol * | |
217aa764 | 7420 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
7421 | { |
7422 | elf_symbol_type *newsym; | |
dc810e39 | 7423 | bfd_size_type amt = sizeof (elf_symbol_type); |
252b5132 | 7424 | |
a50b1753 | 7425 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
7426 | if (!newsym) |
7427 | return NULL; | |
7428 | else | |
7429 | { | |
7430 | newsym->symbol.the_bfd = abfd; | |
7431 | return &newsym->symbol; | |
7432 | } | |
7433 | } | |
7434 | ||
7435 | void | |
217aa764 AM |
7436 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
7437 | asymbol *symbol, | |
7438 | symbol_info *ret) | |
252b5132 RH |
7439 | { |
7440 | bfd_symbol_info (symbol, ret); | |
7441 | } | |
7442 | ||
7443 | /* Return whether a symbol name implies a local symbol. Most targets | |
7444 | use this function for the is_local_label_name entry point, but some | |
7445 | override it. */ | |
7446 | ||
b34976b6 | 7447 | bfd_boolean |
217aa764 AM |
7448 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
7449 | const char *name) | |
252b5132 RH |
7450 | { |
7451 | /* Normal local symbols start with ``.L''. */ | |
7452 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 7453 | return TRUE; |
252b5132 RH |
7454 | |
7455 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
7456 | DWARF debugging symbols starting with ``..''. */ | |
7457 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 7458 | return TRUE; |
252b5132 RH |
7459 | |
7460 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
7461 | emitting DWARF debugging output. I suspect this is actually a | |
7462 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
7463 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
7464 | underscore to be emitted on some ELF targets). For ease of use, | |
7465 | we treat such symbols as local. */ | |
7466 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 7467 | return TRUE; |
252b5132 | 7468 | |
b34976b6 | 7469 | return FALSE; |
252b5132 RH |
7470 | } |
7471 | ||
7472 | alent * | |
217aa764 AM |
7473 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
7474 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
7475 | { |
7476 | abort (); | |
7477 | return NULL; | |
7478 | } | |
7479 | ||
b34976b6 | 7480 | bfd_boolean |
217aa764 AM |
7481 | _bfd_elf_set_arch_mach (bfd *abfd, |
7482 | enum bfd_architecture arch, | |
7483 | unsigned long machine) | |
252b5132 RH |
7484 | { |
7485 | /* If this isn't the right architecture for this backend, and this | |
7486 | isn't the generic backend, fail. */ | |
7487 | if (arch != get_elf_backend_data (abfd)->arch | |
7488 | && arch != bfd_arch_unknown | |
7489 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 7490 | return FALSE; |
252b5132 RH |
7491 | |
7492 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
7493 | } | |
7494 | ||
d1fad7c6 NC |
7495 | /* Find the function to a particular section and offset, |
7496 | for error reporting. */ | |
252b5132 | 7497 | |
b34976b6 | 7498 | static bfd_boolean |
b9d678e0 | 7499 | elf_find_function (bfd *abfd, |
217aa764 AM |
7500 | asection *section, |
7501 | asymbol **symbols, | |
7502 | bfd_vma offset, | |
7503 | const char **filename_ptr, | |
7504 | const char **functionname_ptr) | |
252b5132 | 7505 | { |
aef36ac1 AM |
7506 | static asection *last_section; |
7507 | static asymbol *func; | |
7508 | static const char *filename; | |
7509 | static bfd_size_type func_size; | |
252b5132 | 7510 | |
a06c7d5a NC |
7511 | if (symbols == NULL) |
7512 | return FALSE; | |
7513 | ||
aef36ac1 AM |
7514 | if (last_section != section |
7515 | || func == NULL | |
7516 | || offset < func->value | |
7517 | || offset >= func->value + func_size) | |
7518 | { | |
7519 | asymbol *file; | |
7520 | bfd_vma low_func; | |
7521 | asymbol **p; | |
7522 | /* ??? Given multiple file symbols, it is impossible to reliably | |
7523 | choose the right file name for global symbols. File symbols are | |
7524 | local symbols, and thus all file symbols must sort before any | |
7525 | global symbols. The ELF spec may be interpreted to say that a | |
7526 | file symbol must sort before other local symbols, but currently | |
7527 | ld -r doesn't do this. So, for ld -r output, it is possible to | |
7528 | make a better choice of file name for local symbols by ignoring | |
7529 | file symbols appearing after a given local symbol. */ | |
7530 | enum { nothing_seen, symbol_seen, file_after_symbol_seen } state; | |
7531 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7532 | ||
7533 | filename = NULL; | |
7534 | func = NULL; | |
7535 | file = NULL; | |
7536 | low_func = 0; | |
7537 | state = nothing_seen; | |
7538 | func_size = 0; | |
7539 | last_section = section; | |
7540 | ||
7541 | for (p = symbols; *p != NULL; p++) | |
7542 | { | |
7543 | asymbol *sym = *p; | |
7544 | bfd_vma code_off; | |
7545 | bfd_size_type size; | |
7546 | ||
7547 | if ((sym->flags & BSF_FILE) != 0) | |
7548 | { | |
7549 | file = sym; | |
7550 | if (state == symbol_seen) | |
7551 | state = file_after_symbol_seen; | |
7552 | continue; | |
7553 | } | |
ff9e0f5b | 7554 | |
aef36ac1 AM |
7555 | size = bed->maybe_function_sym (sym, section, &code_off); |
7556 | if (size != 0 | |
7557 | && code_off <= offset | |
7558 | && (code_off > low_func | |
7559 | || (code_off == low_func | |
7560 | && size > func_size))) | |
7561 | { | |
7562 | func = sym; | |
7563 | func_size = size; | |
7564 | low_func = code_off; | |
7565 | filename = NULL; | |
7566 | if (file != NULL | |
7567 | && ((sym->flags & BSF_LOCAL) != 0 | |
7568 | || state != file_after_symbol_seen)) | |
7569 | filename = bfd_asymbol_name (file); | |
7570 | } | |
7571 | if (state == nothing_seen) | |
7572 | state = symbol_seen; | |
252b5132 RH |
7573 | } |
7574 | } | |
7575 | ||
7576 | if (func == NULL) | |
b34976b6 | 7577 | return FALSE; |
252b5132 | 7578 | |
d1fad7c6 NC |
7579 | if (filename_ptr) |
7580 | *filename_ptr = filename; | |
7581 | if (functionname_ptr) | |
7582 | *functionname_ptr = bfd_asymbol_name (func); | |
7583 | ||
b34976b6 | 7584 | return TRUE; |
d1fad7c6 NC |
7585 | } |
7586 | ||
7587 | /* Find the nearest line to a particular section and offset, | |
7588 | for error reporting. */ | |
7589 | ||
b34976b6 | 7590 | bfd_boolean |
217aa764 AM |
7591 | _bfd_elf_find_nearest_line (bfd *abfd, |
7592 | asection *section, | |
7593 | asymbol **symbols, | |
7594 | bfd_vma offset, | |
7595 | const char **filename_ptr, | |
7596 | const char **functionname_ptr, | |
7597 | unsigned int *line_ptr) | |
9b8d1a36 CC |
7598 | { |
7599 | return _bfd_elf_find_nearest_line_discriminator (abfd, section, symbols, | |
7600 | offset, filename_ptr, | |
7601 | functionname_ptr, | |
7602 | line_ptr, | |
7603 | NULL); | |
7604 | } | |
7605 | ||
7606 | bfd_boolean | |
7607 | _bfd_elf_find_nearest_line_discriminator (bfd *abfd, | |
7608 | asection *section, | |
7609 | asymbol **symbols, | |
7610 | bfd_vma offset, | |
7611 | const char **filename_ptr, | |
7612 | const char **functionname_ptr, | |
7613 | unsigned int *line_ptr, | |
7614 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 7615 | { |
b34976b6 | 7616 | bfd_boolean found; |
d1fad7c6 NC |
7617 | |
7618 | if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
7619 | filename_ptr, functionname_ptr, |
7620 | line_ptr)) | |
d1fad7c6 NC |
7621 | { |
7622 | if (!*functionname_ptr) | |
4e8a9624 AM |
7623 | elf_find_function (abfd, section, symbols, offset, |
7624 | *filename_ptr ? NULL : filename_ptr, | |
7625 | functionname_ptr); | |
7626 | ||
b34976b6 | 7627 | return TRUE; |
d1fad7c6 NC |
7628 | } |
7629 | ||
fc28f9aa TG |
7630 | if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections, |
7631 | section, symbols, offset, | |
4e8a9624 | 7632 | filename_ptr, functionname_ptr, |
9b8d1a36 | 7633 | line_ptr, discriminator_ptr, 0, |
4e8a9624 | 7634 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
d1fad7c6 NC |
7635 | { |
7636 | if (!*functionname_ptr) | |
4e8a9624 AM |
7637 | elf_find_function (abfd, section, symbols, offset, |
7638 | *filename_ptr ? NULL : filename_ptr, | |
7639 | functionname_ptr); | |
7640 | ||
b34976b6 | 7641 | return TRUE; |
d1fad7c6 NC |
7642 | } |
7643 | ||
7644 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
7645 | &found, filename_ptr, |
7646 | functionname_ptr, line_ptr, | |
7647 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 7648 | return FALSE; |
dc43ada5 | 7649 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 7650 | return TRUE; |
d1fad7c6 NC |
7651 | |
7652 | if (symbols == NULL) | |
b34976b6 | 7653 | return FALSE; |
d1fad7c6 NC |
7654 | |
7655 | if (! elf_find_function (abfd, section, symbols, offset, | |
4e8a9624 | 7656 | filename_ptr, functionname_ptr)) |
b34976b6 | 7657 | return FALSE; |
d1fad7c6 | 7658 | |
252b5132 | 7659 | *line_ptr = 0; |
b34976b6 | 7660 | return TRUE; |
252b5132 RH |
7661 | } |
7662 | ||
5420f73d L |
7663 | /* Find the line for a symbol. */ |
7664 | ||
7665 | bfd_boolean | |
7666 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7667 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 CC |
7668 | { |
7669 | return _bfd_elf_find_line_discriminator (abfd, symbols, symbol, | |
7670 | filename_ptr, line_ptr, | |
7671 | NULL); | |
7672 | } | |
7673 | ||
7674 | bfd_boolean | |
7675 | _bfd_elf_find_line_discriminator (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
7676 | const char **filename_ptr, | |
7677 | unsigned int *line_ptr, | |
7678 | unsigned int *discriminator_ptr) | |
5420f73d L |
7679 | { |
7680 | return _bfd_dwarf2_find_line (abfd, symbols, symbol, | |
9b8d1a36 | 7681 | filename_ptr, line_ptr, discriminator_ptr, 0, |
5420f73d L |
7682 | &elf_tdata (abfd)->dwarf2_find_line_info); |
7683 | } | |
7684 | ||
4ab527b0 FF |
7685 | /* After a call to bfd_find_nearest_line, successive calls to |
7686 | bfd_find_inliner_info can be used to get source information about | |
7687 | each level of function inlining that terminated at the address | |
7688 | passed to bfd_find_nearest_line. Currently this is only supported | |
7689 | for DWARF2 with appropriate DWARF3 extensions. */ | |
7690 | ||
7691 | bfd_boolean | |
7692 | _bfd_elf_find_inliner_info (bfd *abfd, | |
7693 | const char **filename_ptr, | |
7694 | const char **functionname_ptr, | |
7695 | unsigned int *line_ptr) | |
7696 | { | |
7697 | bfd_boolean found; | |
7698 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
7699 | functionname_ptr, line_ptr, | |
7700 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
7701 | return found; | |
7702 | } | |
7703 | ||
252b5132 | 7704 | int |
a6b96beb | 7705 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 7706 | { |
8ded5a0f AM |
7707 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7708 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 7709 | |
a6b96beb | 7710 | if (!info->relocatable) |
8ded5a0f | 7711 | { |
62d7a5f6 | 7712 | bfd_size_type phdr_size = elf_tdata (abfd)->program_header_size; |
8ded5a0f | 7713 | |
62d7a5f6 AM |
7714 | if (phdr_size == (bfd_size_type) -1) |
7715 | { | |
7716 | struct elf_segment_map *m; | |
7717 | ||
7718 | phdr_size = 0; | |
7719 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
7720 | phdr_size += bed->s->sizeof_phdr; | |
8ded5a0f | 7721 | |
62d7a5f6 AM |
7722 | if (phdr_size == 0) |
7723 | phdr_size = get_program_header_size (abfd, info); | |
7724 | } | |
8ded5a0f AM |
7725 | |
7726 | elf_tdata (abfd)->program_header_size = phdr_size; | |
7727 | ret += phdr_size; | |
7728 | } | |
7729 | ||
252b5132 RH |
7730 | return ret; |
7731 | } | |
7732 | ||
b34976b6 | 7733 | bfd_boolean |
217aa764 AM |
7734 | _bfd_elf_set_section_contents (bfd *abfd, |
7735 | sec_ptr section, | |
0f867abe | 7736 | const void *location, |
217aa764 AM |
7737 | file_ptr offset, |
7738 | bfd_size_type count) | |
252b5132 RH |
7739 | { |
7740 | Elf_Internal_Shdr *hdr; | |
dc810e39 | 7741 | bfd_signed_vma pos; |
252b5132 RH |
7742 | |
7743 | if (! abfd->output_has_begun | |
217aa764 | 7744 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 7745 | return FALSE; |
252b5132 RH |
7746 | |
7747 | hdr = &elf_section_data (section)->this_hdr; | |
dc810e39 AM |
7748 | pos = hdr->sh_offset + offset; |
7749 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
7750 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 7751 | return FALSE; |
252b5132 | 7752 | |
b34976b6 | 7753 | return TRUE; |
252b5132 RH |
7754 | } |
7755 | ||
7756 | void | |
217aa764 AM |
7757 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
7758 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
7759 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
7760 | { |
7761 | abort (); | |
7762 | } | |
7763 | ||
252b5132 RH |
7764 | /* Try to convert a non-ELF reloc into an ELF one. */ |
7765 | ||
b34976b6 | 7766 | bfd_boolean |
217aa764 | 7767 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 7768 | { |
c044fabd | 7769 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
7770 | |
7771 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
7772 | { | |
7773 | bfd_reloc_code_real_type code; | |
7774 | reloc_howto_type *howto; | |
7775 | ||
7776 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 7777 | equivalent ELF reloc. */ |
252b5132 RH |
7778 | |
7779 | if (areloc->howto->pc_relative) | |
7780 | { | |
7781 | switch (areloc->howto->bitsize) | |
7782 | { | |
7783 | case 8: | |
7784 | code = BFD_RELOC_8_PCREL; | |
7785 | break; | |
7786 | case 12: | |
7787 | code = BFD_RELOC_12_PCREL; | |
7788 | break; | |
7789 | case 16: | |
7790 | code = BFD_RELOC_16_PCREL; | |
7791 | break; | |
7792 | case 24: | |
7793 | code = BFD_RELOC_24_PCREL; | |
7794 | break; | |
7795 | case 32: | |
7796 | code = BFD_RELOC_32_PCREL; | |
7797 | break; | |
7798 | case 64: | |
7799 | code = BFD_RELOC_64_PCREL; | |
7800 | break; | |
7801 | default: | |
7802 | goto fail; | |
7803 | } | |
7804 | ||
7805 | howto = bfd_reloc_type_lookup (abfd, code); | |
7806 | ||
7807 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
7808 | { | |
7809 | if (howto->pcrel_offset) | |
7810 | areloc->addend += areloc->address; | |
7811 | else | |
7812 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
7813 | } | |
7814 | } | |
7815 | else | |
7816 | { | |
7817 | switch (areloc->howto->bitsize) | |
7818 | { | |
7819 | case 8: | |
7820 | code = BFD_RELOC_8; | |
7821 | break; | |
7822 | case 14: | |
7823 | code = BFD_RELOC_14; | |
7824 | break; | |
7825 | case 16: | |
7826 | code = BFD_RELOC_16; | |
7827 | break; | |
7828 | case 26: | |
7829 | code = BFD_RELOC_26; | |
7830 | break; | |
7831 | case 32: | |
7832 | code = BFD_RELOC_32; | |
7833 | break; | |
7834 | case 64: | |
7835 | code = BFD_RELOC_64; | |
7836 | break; | |
7837 | default: | |
7838 | goto fail; | |
7839 | } | |
7840 | ||
7841 | howto = bfd_reloc_type_lookup (abfd, code); | |
7842 | } | |
7843 | ||
7844 | if (howto) | |
7845 | areloc->howto = howto; | |
7846 | else | |
7847 | goto fail; | |
7848 | } | |
7849 | ||
b34976b6 | 7850 | return TRUE; |
252b5132 RH |
7851 | |
7852 | fail: | |
7853 | (*_bfd_error_handler) | |
d003868e AM |
7854 | (_("%B: unsupported relocation type %s"), |
7855 | abfd, areloc->howto->name); | |
252b5132 | 7856 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7857 | return FALSE; |
252b5132 RH |
7858 | } |
7859 | ||
b34976b6 | 7860 | bfd_boolean |
217aa764 | 7861 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 7862 | { |
d9071b0c TG |
7863 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
7864 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 7865 | { |
d9071b0c | 7866 | if (elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 7867 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 7868 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
7869 | } |
7870 | ||
7871 | return _bfd_generic_close_and_cleanup (abfd); | |
7872 | } | |
7873 | ||
7874 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
7875 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
7876 | range-checking to interfere. There is nothing else to do in processing | |
7877 | this reloc. */ | |
7878 | ||
7879 | bfd_reloc_status_type | |
217aa764 AM |
7880 | _bfd_elf_rel_vtable_reloc_fn |
7881 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 7882 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
7883 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
7884 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
7885 | { |
7886 | return bfd_reloc_ok; | |
7887 | } | |
252b5132 RH |
7888 | \f |
7889 | /* Elf core file support. Much of this only works on native | |
7890 | toolchains, since we rely on knowing the | |
7891 | machine-dependent procfs structure in order to pick | |
c044fabd | 7892 | out details about the corefile. */ |
252b5132 RH |
7893 | |
7894 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
7895 | /* Needed for new procfs interface on sparc-solaris. */ |
7896 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
7897 | # include <sys/procfs.h> |
7898 | #endif | |
7899 | ||
261b8d08 PA |
7900 | /* Return a PID that identifies a "thread" for threaded cores, or the |
7901 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
7902 | |
7903 | static int | |
217aa764 | 7904 | elfcore_make_pid (bfd *abfd) |
252b5132 | 7905 | { |
261b8d08 PA |
7906 | int pid; |
7907 | ||
7908 | pid = elf_tdata (abfd)->core_lwpid; | |
7909 | if (pid == 0) | |
7910 | pid = elf_tdata (abfd)->core_pid; | |
7911 | ||
7912 | return pid; | |
252b5132 RH |
7913 | } |
7914 | ||
252b5132 RH |
7915 | /* If there isn't a section called NAME, make one, using |
7916 | data from SECT. Note, this function will generate a | |
7917 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 7918 | overwrite it. */ |
252b5132 | 7919 | |
b34976b6 | 7920 | static bfd_boolean |
217aa764 | 7921 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 7922 | { |
c044fabd | 7923 | asection *sect2; |
252b5132 RH |
7924 | |
7925 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 7926 | return TRUE; |
252b5132 | 7927 | |
117ed4f8 | 7928 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 7929 | if (sect2 == NULL) |
b34976b6 | 7930 | return FALSE; |
252b5132 | 7931 | |
eea6121a | 7932 | sect2->size = sect->size; |
252b5132 | 7933 | sect2->filepos = sect->filepos; |
252b5132 | 7934 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 7935 | return TRUE; |
252b5132 RH |
7936 | } |
7937 | ||
bb0082d6 AM |
7938 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
7939 | actually creates up to two pseudosections: | |
7940 | - For the single-threaded case, a section named NAME, unless | |
7941 | such a section already exists. | |
7942 | - For the multi-threaded case, a section named "NAME/PID", where | |
7943 | PID is elfcore_make_pid (abfd). | |
7944 | Both pseudosections have identical contents. */ | |
b34976b6 | 7945 | bfd_boolean |
217aa764 AM |
7946 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
7947 | char *name, | |
7948 | size_t size, | |
7949 | ufile_ptr filepos) | |
bb0082d6 AM |
7950 | { |
7951 | char buf[100]; | |
7952 | char *threaded_name; | |
d4c88bbb | 7953 | size_t len; |
bb0082d6 AM |
7954 | asection *sect; |
7955 | ||
7956 | /* Build the section name. */ | |
7957 | ||
7958 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 7959 | len = strlen (buf) + 1; |
a50b1753 | 7960 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 7961 | if (threaded_name == NULL) |
b34976b6 | 7962 | return FALSE; |
d4c88bbb | 7963 | memcpy (threaded_name, buf, len); |
bb0082d6 | 7964 | |
117ed4f8 AM |
7965 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
7966 | SEC_HAS_CONTENTS); | |
bb0082d6 | 7967 | if (sect == NULL) |
b34976b6 | 7968 | return FALSE; |
eea6121a | 7969 | sect->size = size; |
bb0082d6 | 7970 | sect->filepos = filepos; |
bb0082d6 AM |
7971 | sect->alignment_power = 2; |
7972 | ||
936e320b | 7973 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
7974 | } |
7975 | ||
252b5132 | 7976 | /* prstatus_t exists on: |
4a938328 | 7977 | solaris 2.5+ |
252b5132 RH |
7978 | linux 2.[01] + glibc |
7979 | unixware 4.2 | |
7980 | */ | |
7981 | ||
7982 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 7983 | |
b34976b6 | 7984 | static bfd_boolean |
217aa764 | 7985 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 7986 | { |
eea6121a | 7987 | size_t size; |
7ee38065 | 7988 | int offset; |
252b5132 | 7989 | |
4a938328 MS |
7990 | if (note->descsz == sizeof (prstatus_t)) |
7991 | { | |
7992 | prstatus_t prstat; | |
252b5132 | 7993 | |
eea6121a | 7994 | size = sizeof (prstat.pr_reg); |
7ee38065 | 7995 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 7996 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 7997 | |
fa49d224 NC |
7998 | /* Do not overwrite the core signal if it |
7999 | has already been set by another thread. */ | |
8000 | if (elf_tdata (abfd)->core_signal == 0) | |
8001 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
261b8d08 PA |
8002 | if (elf_tdata (abfd)->core_pid == 0) |
8003 | elf_tdata (abfd)->core_pid = prstat.pr_pid; | |
252b5132 | 8004 | |
4a938328 MS |
8005 | /* pr_who exists on: |
8006 | solaris 2.5+ | |
8007 | unixware 4.2 | |
8008 | pr_who doesn't exist on: | |
8009 | linux 2.[01] | |
8010 | */ | |
252b5132 | 8011 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
4a938328 | 8012 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
261b8d08 PA |
8013 | #else |
8014 | elf_tdata (abfd)->core_lwpid = prstat.pr_pid; | |
252b5132 | 8015 | #endif |
4a938328 | 8016 | } |
7ee38065 | 8017 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
8018 | else if (note->descsz == sizeof (prstatus32_t)) |
8019 | { | |
8020 | /* 64-bit host, 32-bit corefile */ | |
8021 | prstatus32_t prstat; | |
8022 | ||
eea6121a | 8023 | size = sizeof (prstat.pr_reg); |
7ee38065 | 8024 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
8025 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
8026 | ||
fa49d224 NC |
8027 | /* Do not overwrite the core signal if it |
8028 | has already been set by another thread. */ | |
8029 | if (elf_tdata (abfd)->core_signal == 0) | |
8030 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
261b8d08 PA |
8031 | if (elf_tdata (abfd)->core_pid == 0) |
8032 | elf_tdata (abfd)->core_pid = prstat.pr_pid; | |
4a938328 MS |
8033 | |
8034 | /* pr_who exists on: | |
8035 | solaris 2.5+ | |
8036 | unixware 4.2 | |
8037 | pr_who doesn't exist on: | |
8038 | linux 2.[01] | |
8039 | */ | |
7ee38065 | 8040 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
4a938328 | 8041 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
261b8d08 PA |
8042 | #else |
8043 | elf_tdata (abfd)->core_lwpid = prstat.pr_pid; | |
4a938328 MS |
8044 | #endif |
8045 | } | |
7ee38065 | 8046 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
8047 | else |
8048 | { | |
8049 | /* Fail - we don't know how to handle any other | |
8050 | note size (ie. data object type). */ | |
b34976b6 | 8051 | return TRUE; |
4a938328 | 8052 | } |
252b5132 | 8053 | |
bb0082d6 | 8054 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 8055 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 8056 | size, note->descpos + offset); |
252b5132 RH |
8057 | } |
8058 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
8059 | ||
bb0082d6 | 8060 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 8061 | static bfd_boolean |
217aa764 AM |
8062 | elfcore_make_note_pseudosection (bfd *abfd, |
8063 | char *name, | |
8064 | Elf_Internal_Note *note) | |
252b5132 | 8065 | { |
936e320b AM |
8066 | return _bfd_elfcore_make_pseudosection (abfd, name, |
8067 | note->descsz, note->descpos); | |
252b5132 RH |
8068 | } |
8069 | ||
ff08c6bb JB |
8070 | /* There isn't a consistent prfpregset_t across platforms, |
8071 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
8072 | data structure apart. */ |
8073 | ||
b34976b6 | 8074 | static bfd_boolean |
217aa764 | 8075 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8076 | { |
8077 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8078 | } | |
8079 | ||
ff08c6bb | 8080 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 8081 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 8082 | literally. */ |
c044fabd | 8083 | |
b34976b6 | 8084 | static bfd_boolean |
217aa764 | 8085 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
8086 | { |
8087 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8088 | } | |
8089 | ||
4339cae0 L |
8090 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
8091 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
8092 | contents literally. */ | |
8093 | ||
8094 | static bfd_boolean | |
8095 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
8096 | { | |
8097 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
8098 | } | |
8099 | ||
97753bd5 AM |
8100 | static bfd_boolean |
8101 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
8102 | { | |
8103 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
8104 | } | |
8105 | ||
89eeb0bc LM |
8106 | static bfd_boolean |
8107 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
8108 | { | |
8109 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
8110 | } | |
97753bd5 | 8111 | |
0675e188 UW |
8112 | static bfd_boolean |
8113 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
8114 | { | |
8115 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
8116 | } | |
8117 | ||
d7eeb400 MS |
8118 | static bfd_boolean |
8119 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
8120 | { | |
8121 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
8122 | } | |
8123 | ||
8124 | static bfd_boolean | |
8125 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
8126 | { | |
8127 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
8128 | } | |
8129 | ||
8130 | static bfd_boolean | |
8131 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
8132 | { | |
8133 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
8134 | } | |
8135 | ||
8136 | static bfd_boolean | |
8137 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
8138 | { | |
8139 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
8140 | } | |
8141 | ||
8142 | static bfd_boolean | |
8143 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
8144 | { | |
8145 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
8146 | } | |
8147 | ||
355b81d9 UW |
8148 | static bfd_boolean |
8149 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
8150 | { | |
8151 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
8152 | } | |
8153 | ||
8154 | static bfd_boolean | |
8155 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
8156 | { | |
8157 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
8158 | } | |
8159 | ||
faa9a424 UW |
8160 | static bfd_boolean |
8161 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
8162 | { | |
8163 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
8164 | } | |
8165 | ||
652451f8 YZ |
8166 | static bfd_boolean |
8167 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
8168 | { | |
8169 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
8170 | } | |
8171 | ||
8172 | static bfd_boolean | |
8173 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
8174 | { | |
8175 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
8176 | } | |
8177 | ||
8178 | static bfd_boolean | |
8179 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
8180 | { | |
8181 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
8182 | } | |
8183 | ||
252b5132 | 8184 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 8185 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 8186 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8187 | typedef prpsinfo32_t elfcore_psinfo32_t; |
8188 | #endif | |
252b5132 RH |
8189 | #endif |
8190 | ||
8191 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 8192 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 8193 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
8194 | typedef psinfo32_t elfcore_psinfo32_t; |
8195 | #endif | |
252b5132 RH |
8196 | #endif |
8197 | ||
252b5132 RH |
8198 | /* return a malloc'ed copy of a string at START which is at |
8199 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 8200 | the copy will always have a terminating '\0'. */ |
252b5132 | 8201 | |
936e320b | 8202 | char * |
217aa764 | 8203 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 8204 | { |
dc810e39 | 8205 | char *dups; |
a50b1753 | 8206 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 8207 | size_t len; |
252b5132 RH |
8208 | |
8209 | if (end == NULL) | |
8210 | len = max; | |
8211 | else | |
8212 | len = end - start; | |
8213 | ||
a50b1753 | 8214 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 8215 | if (dups == NULL) |
252b5132 RH |
8216 | return NULL; |
8217 | ||
dc810e39 AM |
8218 | memcpy (dups, start, len); |
8219 | dups[len] = '\0'; | |
252b5132 | 8220 | |
dc810e39 | 8221 | return dups; |
252b5132 RH |
8222 | } |
8223 | ||
bb0082d6 | 8224 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 8225 | static bfd_boolean |
217aa764 | 8226 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8227 | { |
4a938328 MS |
8228 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
8229 | { | |
8230 | elfcore_psinfo_t psinfo; | |
252b5132 | 8231 | |
7ee38065 | 8232 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8233 | |
335e41d4 | 8234 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_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)); | |
252b5132 | 8240 | |
4a938328 | 8241 | elf_tdata (abfd)->core_command |
936e320b AM |
8242 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8243 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 8244 | } |
7ee38065 | 8245 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
8246 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
8247 | { | |
8248 | /* 64-bit host, 32-bit corefile */ | |
8249 | elfcore_psinfo32_t psinfo; | |
8250 | ||
7ee38065 | 8251 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 8252 | |
335e41d4 | 8253 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
bc989cdc | 8254 | elf_tdata (abfd)->core_pid = psinfo.pr_pid; |
335e41d4 | 8255 | #endif |
4a938328 | 8256 | elf_tdata (abfd)->core_program |
936e320b AM |
8257 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
8258 | sizeof (psinfo.pr_fname)); | |
4a938328 MS |
8259 | |
8260 | elf_tdata (abfd)->core_command | |
936e320b AM |
8261 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
8262 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
8263 | } |
8264 | #endif | |
8265 | ||
8266 | else | |
8267 | { | |
8268 | /* Fail - we don't know how to handle any other | |
8269 | note size (ie. data object type). */ | |
b34976b6 | 8270 | return TRUE; |
4a938328 | 8271 | } |
252b5132 RH |
8272 | |
8273 | /* Note that for some reason, a spurious space is tacked | |
8274 | onto the end of the args in some (at least one anyway) | |
c044fabd | 8275 | implementations, so strip it off if it exists. */ |
252b5132 RH |
8276 | |
8277 | { | |
c044fabd | 8278 | char *command = elf_tdata (abfd)->core_command; |
252b5132 RH |
8279 | int n = strlen (command); |
8280 | ||
8281 | if (0 < n && command[n - 1] == ' ') | |
8282 | command[n - 1] = '\0'; | |
8283 | } | |
8284 | ||
b34976b6 | 8285 | return TRUE; |
252b5132 RH |
8286 | } |
8287 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
8288 | ||
252b5132 | 8289 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 8290 | static bfd_boolean |
217aa764 | 8291 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8292 | { |
f572a39d AM |
8293 | if (note->descsz == sizeof (pstatus_t) |
8294 | #if defined (HAVE_PXSTATUS_T) | |
8295 | || note->descsz == sizeof (pxstatus_t) | |
8296 | #endif | |
8297 | ) | |
4a938328 MS |
8298 | { |
8299 | pstatus_t pstat; | |
252b5132 | 8300 | |
4a938328 | 8301 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8302 | |
4a938328 MS |
8303 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
8304 | } | |
7ee38065 | 8305 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
8306 | else if (note->descsz == sizeof (pstatus32_t)) |
8307 | { | |
8308 | /* 64-bit host, 32-bit corefile */ | |
8309 | pstatus32_t pstat; | |
252b5132 | 8310 | |
4a938328 | 8311 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 8312 | |
4a938328 MS |
8313 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
8314 | } | |
8315 | #endif | |
252b5132 RH |
8316 | /* Could grab some more details from the "representative" |
8317 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 8318 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 8319 | |
b34976b6 | 8320 | return TRUE; |
252b5132 RH |
8321 | } |
8322 | #endif /* defined (HAVE_PSTATUS_T) */ | |
8323 | ||
252b5132 | 8324 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 8325 | static bfd_boolean |
217aa764 | 8326 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
8327 | { |
8328 | lwpstatus_t lwpstat; | |
8329 | char buf[100]; | |
c044fabd | 8330 | char *name; |
d4c88bbb | 8331 | size_t len; |
c044fabd | 8332 | asection *sect; |
252b5132 | 8333 | |
f572a39d AM |
8334 | if (note->descsz != sizeof (lwpstat) |
8335 | #if defined (HAVE_LWPXSTATUS_T) | |
8336 | && note->descsz != sizeof (lwpxstatus_t) | |
8337 | #endif | |
8338 | ) | |
b34976b6 | 8339 | return TRUE; |
252b5132 RH |
8340 | |
8341 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
8342 | ||
8343 | elf_tdata (abfd)->core_lwpid = lwpstat.pr_lwpid; | |
a1504221 JB |
8344 | /* Do not overwrite the core signal if it has already been set by |
8345 | another thread. */ | |
8346 | if (elf_tdata (abfd)->core_signal == 0) | |
8347 | elf_tdata (abfd)->core_signal = lwpstat.pr_cursig; | |
252b5132 | 8348 | |
c044fabd | 8349 | /* Make a ".reg/999" section. */ |
252b5132 RH |
8350 | |
8351 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8352 | len = strlen (buf) + 1; |
217aa764 | 8353 | name = bfd_alloc (abfd, len); |
252b5132 | 8354 | if (name == NULL) |
b34976b6 | 8355 | return FALSE; |
d4c88bbb | 8356 | memcpy (name, buf, len); |
252b5132 | 8357 | |
117ed4f8 | 8358 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8359 | if (sect == NULL) |
b34976b6 | 8360 | return FALSE; |
252b5132 RH |
8361 | |
8362 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8363 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
8364 | sect->filepos = note->descpos |
8365 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
8366 | #endif | |
8367 | ||
8368 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 8369 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
8370 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
8371 | #endif | |
8372 | ||
252b5132 RH |
8373 | sect->alignment_power = 2; |
8374 | ||
8375 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 8376 | return FALSE; |
252b5132 RH |
8377 | |
8378 | /* Make a ".reg2/999" section */ | |
8379 | ||
8380 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 8381 | len = strlen (buf) + 1; |
217aa764 | 8382 | name = bfd_alloc (abfd, len); |
252b5132 | 8383 | if (name == NULL) |
b34976b6 | 8384 | return FALSE; |
d4c88bbb | 8385 | memcpy (name, buf, len); |
252b5132 | 8386 | |
117ed4f8 | 8387 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 8388 | if (sect == NULL) |
b34976b6 | 8389 | return FALSE; |
252b5132 RH |
8390 | |
8391 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 8392 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
8393 | sect->filepos = note->descpos |
8394 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
8395 | #endif | |
8396 | ||
8397 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 8398 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
8399 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
8400 | #endif | |
8401 | ||
252b5132 RH |
8402 | sect->alignment_power = 2; |
8403 | ||
936e320b | 8404 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
8405 | } |
8406 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
8407 | ||
b34976b6 | 8408 | static bfd_boolean |
217aa764 | 8409 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
8410 | { |
8411 | char buf[30]; | |
c044fabd | 8412 | char *name; |
d4c88bbb | 8413 | size_t len; |
c044fabd | 8414 | asection *sect; |
4a6636fb PA |
8415 | int type; |
8416 | int is_active_thread; | |
8417 | bfd_vma base_addr; | |
16e9c715 | 8418 | |
4a6636fb | 8419 | if (note->descsz < 728) |
b34976b6 | 8420 | return TRUE; |
16e9c715 | 8421 | |
4a6636fb PA |
8422 | if (! CONST_STRNEQ (note->namedata, "win32")) |
8423 | return TRUE; | |
8424 | ||
8425 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 8426 | |
4a6636fb | 8427 | switch (type) |
16e9c715 | 8428 | { |
4a6636fb | 8429 | case 1 /* NOTE_INFO_PROCESS */: |
16e9c715 | 8430 | /* FIXME: need to add ->core_command. */ |
4a6636fb PA |
8431 | /* process_info.pid */ |
8432 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 8); | |
8433 | /* process_info.signal */ | |
8434 | elf_tdata (abfd)->core_signal = bfd_get_32 (abfd, note->descdata + 12); | |
c044fabd | 8435 | break; |
16e9c715 | 8436 | |
4a6636fb | 8437 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 8438 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
8439 | /* thread_info.tid */ |
8440 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 8441 | |
d4c88bbb | 8442 | len = strlen (buf) + 1; |
a50b1753 | 8443 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8444 | if (name == NULL) |
b34976b6 | 8445 | return FALSE; |
c044fabd | 8446 | |
d4c88bbb | 8447 | memcpy (name, buf, len); |
16e9c715 | 8448 | |
117ed4f8 | 8449 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 8450 | if (sect == NULL) |
b34976b6 | 8451 | return FALSE; |
c044fabd | 8452 | |
4a6636fb PA |
8453 | /* sizeof (thread_info.thread_context) */ |
8454 | sect->size = 716; | |
8455 | /* offsetof (thread_info.thread_context) */ | |
8456 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
8457 | sect->alignment_power = 2; |
8458 | ||
4a6636fb PA |
8459 | /* thread_info.is_active_thread */ |
8460 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
8461 | ||
8462 | if (is_active_thread) | |
16e9c715 | 8463 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 8464 | return FALSE; |
16e9c715 NC |
8465 | break; |
8466 | ||
4a6636fb | 8467 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 8468 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
8469 | /* module_info.base_address */ |
8470 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 8471 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 8472 | |
d4c88bbb | 8473 | len = strlen (buf) + 1; |
a50b1753 | 8474 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 8475 | if (name == NULL) |
b34976b6 | 8476 | return FALSE; |
c044fabd | 8477 | |
d4c88bbb | 8478 | memcpy (name, buf, len); |
252b5132 | 8479 | |
117ed4f8 | 8480 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 8481 | |
16e9c715 | 8482 | if (sect == NULL) |
b34976b6 | 8483 | return FALSE; |
c044fabd | 8484 | |
eea6121a | 8485 | sect->size = note->descsz; |
16e9c715 | 8486 | sect->filepos = note->descpos; |
16e9c715 NC |
8487 | sect->alignment_power = 2; |
8488 | break; | |
8489 | ||
8490 | default: | |
b34976b6 | 8491 | return TRUE; |
16e9c715 NC |
8492 | } |
8493 | ||
b34976b6 | 8494 | return TRUE; |
16e9c715 | 8495 | } |
252b5132 | 8496 | |
b34976b6 | 8497 | static bfd_boolean |
217aa764 | 8498 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 8499 | { |
9c5bfbb7 | 8500 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 8501 | |
252b5132 RH |
8502 | switch (note->type) |
8503 | { | |
8504 | default: | |
b34976b6 | 8505 | return TRUE; |
252b5132 | 8506 | |
252b5132 | 8507 | case NT_PRSTATUS: |
bb0082d6 AM |
8508 | if (bed->elf_backend_grok_prstatus) |
8509 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 8510 | return TRUE; |
bb0082d6 | 8511 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 8512 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 8513 | #else |
b34976b6 | 8514 | return TRUE; |
252b5132 RH |
8515 | #endif |
8516 | ||
8517 | #if defined (HAVE_PSTATUS_T) | |
8518 | case NT_PSTATUS: | |
8519 | return elfcore_grok_pstatus (abfd, note); | |
8520 | #endif | |
8521 | ||
8522 | #if defined (HAVE_LWPSTATUS_T) | |
8523 | case NT_LWPSTATUS: | |
8524 | return elfcore_grok_lwpstatus (abfd, note); | |
8525 | #endif | |
8526 | ||
8527 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
8528 | return elfcore_grok_prfpreg (abfd, note); | |
8529 | ||
c044fabd | 8530 | case NT_WIN32PSTATUS: |
16e9c715 | 8531 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 8532 | |
c044fabd | 8533 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
8534 | if (note->namesz == 6 |
8535 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
8536 | return elfcore_grok_prxfpreg (abfd, note); |
8537 | else | |
b34976b6 | 8538 | return TRUE; |
ff08c6bb | 8539 | |
4339cae0 L |
8540 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
8541 | if (note->namesz == 6 | |
8542 | && strcmp (note->namedata, "LINUX") == 0) | |
8543 | return elfcore_grok_xstatereg (abfd, note); | |
8544 | else | |
8545 | return TRUE; | |
8546 | ||
97753bd5 AM |
8547 | case NT_PPC_VMX: |
8548 | if (note->namesz == 6 | |
8549 | && strcmp (note->namedata, "LINUX") == 0) | |
8550 | return elfcore_grok_ppc_vmx (abfd, note); | |
8551 | else | |
8552 | return TRUE; | |
8553 | ||
89eeb0bc LM |
8554 | case NT_PPC_VSX: |
8555 | if (note->namesz == 6 | |
8556 | && strcmp (note->namedata, "LINUX") == 0) | |
8557 | return elfcore_grok_ppc_vsx (abfd, note); | |
8558 | else | |
8559 | return TRUE; | |
8560 | ||
0675e188 UW |
8561 | case NT_S390_HIGH_GPRS: |
8562 | if (note->namesz == 6 | |
8563 | && strcmp (note->namedata, "LINUX") == 0) | |
8564 | return elfcore_grok_s390_high_gprs (abfd, note); | |
8565 | else | |
8566 | return TRUE; | |
8567 | ||
d7eeb400 MS |
8568 | case NT_S390_TIMER: |
8569 | if (note->namesz == 6 | |
8570 | && strcmp (note->namedata, "LINUX") == 0) | |
8571 | return elfcore_grok_s390_timer (abfd, note); | |
8572 | else | |
8573 | return TRUE; | |
8574 | ||
8575 | case NT_S390_TODCMP: | |
8576 | if (note->namesz == 6 | |
8577 | && strcmp (note->namedata, "LINUX") == 0) | |
8578 | return elfcore_grok_s390_todcmp (abfd, note); | |
8579 | else | |
8580 | return TRUE; | |
8581 | ||
8582 | case NT_S390_TODPREG: | |
8583 | if (note->namesz == 6 | |
8584 | && strcmp (note->namedata, "LINUX") == 0) | |
8585 | return elfcore_grok_s390_todpreg (abfd, note); | |
8586 | else | |
8587 | return TRUE; | |
8588 | ||
8589 | case NT_S390_CTRS: | |
8590 | if (note->namesz == 6 | |
8591 | && strcmp (note->namedata, "LINUX") == 0) | |
8592 | return elfcore_grok_s390_ctrs (abfd, note); | |
8593 | else | |
8594 | return TRUE; | |
8595 | ||
8596 | case NT_S390_PREFIX: | |
8597 | if (note->namesz == 6 | |
8598 | && strcmp (note->namedata, "LINUX") == 0) | |
8599 | return elfcore_grok_s390_prefix (abfd, note); | |
8600 | else | |
8601 | return TRUE; | |
8602 | ||
355b81d9 UW |
8603 | case NT_S390_LAST_BREAK: |
8604 | if (note->namesz == 6 | |
8605 | && strcmp (note->namedata, "LINUX") == 0) | |
8606 | return elfcore_grok_s390_last_break (abfd, note); | |
8607 | else | |
8608 | return TRUE; | |
8609 | ||
8610 | case NT_S390_SYSTEM_CALL: | |
8611 | if (note->namesz == 6 | |
8612 | && strcmp (note->namedata, "LINUX") == 0) | |
8613 | return elfcore_grok_s390_system_call (abfd, note); | |
8614 | else | |
8615 | return TRUE; | |
8616 | ||
faa9a424 UW |
8617 | case NT_ARM_VFP: |
8618 | if (note->namesz == 6 | |
8619 | && strcmp (note->namedata, "LINUX") == 0) | |
8620 | return elfcore_grok_arm_vfp (abfd, note); | |
8621 | else | |
8622 | return TRUE; | |
8623 | ||
652451f8 YZ |
8624 | case NT_ARM_TLS: |
8625 | if (note->namesz == 6 | |
8626 | && strcmp (note->namedata, "LINUX") == 0) | |
8627 | return elfcore_grok_aarch_tls (abfd, note); | |
8628 | else | |
8629 | return TRUE; | |
8630 | ||
8631 | case NT_ARM_HW_BREAK: | |
8632 | if (note->namesz == 6 | |
8633 | && strcmp (note->namedata, "LINUX") == 0) | |
8634 | return elfcore_grok_aarch_hw_break (abfd, note); | |
8635 | else | |
8636 | return TRUE; | |
8637 | ||
8638 | case NT_ARM_HW_WATCH: | |
8639 | if (note->namesz == 6 | |
8640 | && strcmp (note->namedata, "LINUX") == 0) | |
8641 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
8642 | else | |
8643 | return TRUE; | |
8644 | ||
252b5132 RH |
8645 | case NT_PRPSINFO: |
8646 | case NT_PSINFO: | |
bb0082d6 AM |
8647 | if (bed->elf_backend_grok_psinfo) |
8648 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 8649 | return TRUE; |
bb0082d6 | 8650 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 8651 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 8652 | #else |
b34976b6 | 8653 | return TRUE; |
252b5132 | 8654 | #endif |
3333a7c3 RM |
8655 | |
8656 | case NT_AUXV: | |
8657 | { | |
117ed4f8 AM |
8658 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
8659 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
8660 | |
8661 | if (sect == NULL) | |
8662 | return FALSE; | |
eea6121a | 8663 | sect->size = note->descsz; |
3333a7c3 | 8664 | sect->filepos = note->descpos; |
3333a7c3 RM |
8665 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
8666 | ||
8667 | return TRUE; | |
8668 | } | |
9015683b | 8669 | |
451b7c33 TT |
8670 | case NT_FILE: |
8671 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
8672 | note); | |
8673 | ||
9015683b TT |
8674 | case NT_SIGINFO: |
8675 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
8676 | note); | |
252b5132 RH |
8677 | } |
8678 | } | |
8679 | ||
718175fa JK |
8680 | static bfd_boolean |
8681 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
8682 | { | |
8683 | elf_tdata (abfd)->build_id_size = note->descsz; | |
a50b1753 | 8684 | elf_tdata (abfd)->build_id = (bfd_byte *) bfd_alloc (abfd, note->descsz); |
718175fa JK |
8685 | if (elf_tdata (abfd)->build_id == NULL) |
8686 | return FALSE; | |
8687 | ||
8688 | memcpy (elf_tdata (abfd)->build_id, note->descdata, note->descsz); | |
8689 | ||
8690 | return TRUE; | |
8691 | } | |
8692 | ||
8693 | static bfd_boolean | |
8694 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
8695 | { | |
8696 | switch (note->type) | |
8697 | { | |
8698 | default: | |
8699 | return TRUE; | |
8700 | ||
8701 | case NT_GNU_BUILD_ID: | |
8702 | return elfobj_grok_gnu_build_id (abfd, note); | |
8703 | } | |
8704 | } | |
8705 | ||
e21e5835 NC |
8706 | static bfd_boolean |
8707 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
8708 | { | |
8709 | struct sdt_note *cur = | |
8710 | (struct sdt_note *) bfd_alloc (abfd, sizeof (struct sdt_note) | |
8711 | + note->descsz); | |
8712 | ||
8713 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
8714 | cur->size = (bfd_size_type) note->descsz; | |
8715 | memcpy (cur->data, note->descdata, note->descsz); | |
8716 | ||
8717 | elf_tdata (abfd)->sdt_note_head = cur; | |
8718 | ||
8719 | return TRUE; | |
8720 | } | |
8721 | ||
8722 | static bfd_boolean | |
8723 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
8724 | { | |
8725 | switch (note->type) | |
8726 | { | |
8727 | case NT_STAPSDT: | |
8728 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
8729 | ||
8730 | default: | |
8731 | return TRUE; | |
8732 | } | |
8733 | } | |
8734 | ||
b34976b6 | 8735 | static bfd_boolean |
217aa764 | 8736 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
8737 | { |
8738 | char *cp; | |
8739 | ||
8740 | cp = strchr (note->namedata, '@'); | |
8741 | if (cp != NULL) | |
8742 | { | |
d2b64500 | 8743 | *lwpidp = atoi(cp + 1); |
b34976b6 | 8744 | return TRUE; |
50b2bdb7 | 8745 | } |
b34976b6 | 8746 | return FALSE; |
50b2bdb7 AM |
8747 | } |
8748 | ||
b34976b6 | 8749 | static bfd_boolean |
217aa764 | 8750 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 8751 | { |
50b2bdb7 AM |
8752 | /* Signal number at offset 0x08. */ |
8753 | elf_tdata (abfd)->core_signal | |
8754 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); | |
8755 | ||
8756 | /* Process ID at offset 0x50. */ | |
8757 | elf_tdata (abfd)->core_pid | |
8758 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); | |
8759 | ||
8760 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
8761 | elf_tdata (abfd)->core_command | |
8762 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); | |
8763 | ||
7720ba9f MK |
8764 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
8765 | note); | |
50b2bdb7 AM |
8766 | } |
8767 | ||
b34976b6 | 8768 | static bfd_boolean |
217aa764 | 8769 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
8770 | { |
8771 | int lwp; | |
8772 | ||
8773 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
8774 | elf_tdata (abfd)->core_lwpid = lwp; | |
8775 | ||
b4db1224 | 8776 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
8777 | { |
8778 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
8779 | find this note before any of the others, which is fine, |
8780 | since the kernel writes this note out first when it | |
8781 | creates a core file. */ | |
47d9a591 | 8782 | |
50b2bdb7 AM |
8783 | return elfcore_grok_netbsd_procinfo (abfd, note); |
8784 | } | |
8785 | ||
b4db1224 JT |
8786 | /* As of Jan 2002 there are no other machine-independent notes |
8787 | defined for NetBSD core files. If the note type is less | |
8788 | than the start of the machine-dependent note types, we don't | |
8789 | understand it. */ | |
47d9a591 | 8790 | |
b4db1224 | 8791 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 8792 | return TRUE; |
50b2bdb7 AM |
8793 | |
8794 | ||
8795 | switch (bfd_get_arch (abfd)) | |
8796 | { | |
08a40648 AM |
8797 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
8798 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
8799 | |
8800 | case bfd_arch_alpha: | |
8801 | case bfd_arch_sparc: | |
8802 | switch (note->type) | |
08a40648 AM |
8803 | { |
8804 | case NT_NETBSDCORE_FIRSTMACH+0: | |
8805 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8806 | |
08a40648 AM |
8807 | case NT_NETBSDCORE_FIRSTMACH+2: |
8808 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8809 | |
08a40648 AM |
8810 | default: |
8811 | return TRUE; | |
8812 | } | |
50b2bdb7 | 8813 | |
08a40648 AM |
8814 | /* On all other arch's, PT_GETREGS == mach+1 and |
8815 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
8816 | |
8817 | default: | |
8818 | switch (note->type) | |
08a40648 AM |
8819 | { |
8820 | case NT_NETBSDCORE_FIRSTMACH+1: | |
8821 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 8822 | |
08a40648 AM |
8823 | case NT_NETBSDCORE_FIRSTMACH+3: |
8824 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 8825 | |
08a40648 AM |
8826 | default: |
8827 | return TRUE; | |
8828 | } | |
50b2bdb7 AM |
8829 | } |
8830 | /* NOTREACHED */ | |
8831 | } | |
8832 | ||
67cc5033 MK |
8833 | static bfd_boolean |
8834 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
8835 | { | |
8836 | /* Signal number at offset 0x08. */ | |
8837 | elf_tdata (abfd)->core_signal | |
8838 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); | |
8839 | ||
8840 | /* Process ID at offset 0x20. */ | |
8841 | elf_tdata (abfd)->core_pid | |
8842 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); | |
8843 | ||
8844 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
8845 | elf_tdata (abfd)->core_command | |
8846 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); | |
8847 | ||
8848 | return TRUE; | |
8849 | } | |
8850 | ||
8851 | static bfd_boolean | |
8852 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
8853 | { | |
8854 | if (note->type == NT_OPENBSD_PROCINFO) | |
8855 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
8856 | ||
8857 | if (note->type == NT_OPENBSD_REGS) | |
8858 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
8859 | ||
8860 | if (note->type == NT_OPENBSD_FPREGS) | |
8861 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
8862 | ||
8863 | if (note->type == NT_OPENBSD_XFPREGS) | |
8864 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
8865 | ||
8866 | if (note->type == NT_OPENBSD_AUXV) | |
8867 | { | |
8868 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
8869 | SEC_HAS_CONTENTS); | |
8870 | ||
8871 | if (sect == NULL) | |
8872 | return FALSE; | |
8873 | sect->size = note->descsz; | |
8874 | sect->filepos = note->descpos; | |
8875 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
8876 | ||
8877 | return TRUE; | |
8878 | } | |
8879 | ||
8880 | if (note->type == NT_OPENBSD_WCOOKIE) | |
8881 | { | |
8882 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
8883 | SEC_HAS_CONTENTS); | |
8884 | ||
8885 | if (sect == NULL) | |
8886 | return FALSE; | |
8887 | sect->size = note->descsz; | |
8888 | sect->filepos = note->descpos; | |
8889 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
8890 | ||
8891 | return TRUE; | |
8892 | } | |
8893 | ||
8894 | return TRUE; | |
8895 | } | |
8896 | ||
07c6e936 | 8897 | static bfd_boolean |
d3fd4074 | 8898 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
8899 | { |
8900 | void *ddata = note->descdata; | |
8901 | char buf[100]; | |
8902 | char *name; | |
8903 | asection *sect; | |
f8843e87 AM |
8904 | short sig; |
8905 | unsigned flags; | |
07c6e936 NC |
8906 | |
8907 | /* nto_procfs_status 'pid' field is at offset 0. */ | |
8908 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, (bfd_byte *) ddata); | |
8909 | ||
f8843e87 AM |
8910 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
8911 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
8912 | ||
8913 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
8914 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
8915 | |
8916 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
8917 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
8918 | { | |
8919 | elf_tdata (abfd)->core_signal = sig; | |
8920 | elf_tdata (abfd)->core_lwpid = *tid; | |
8921 | } | |
07c6e936 | 8922 | |
f8843e87 AM |
8923 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
8924 | do not come from signals so we make sure we set the current | |
8925 | thread just in case. */ | |
8926 | if (flags & 0x00000080) | |
8927 | elf_tdata (abfd)->core_lwpid = *tid; | |
07c6e936 NC |
8928 | |
8929 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 8930 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 8931 | |
a50b1753 | 8932 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
8933 | if (name == NULL) |
8934 | return FALSE; | |
8935 | strcpy (name, buf); | |
8936 | ||
117ed4f8 | 8937 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
8938 | if (sect == NULL) |
8939 | return FALSE; | |
8940 | ||
eea6121a | 8941 | sect->size = note->descsz; |
07c6e936 | 8942 | sect->filepos = note->descpos; |
07c6e936 NC |
8943 | sect->alignment_power = 2; |
8944 | ||
8945 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
8946 | } | |
8947 | ||
8948 | static bfd_boolean | |
d69f560c KW |
8949 | elfcore_grok_nto_regs (bfd *abfd, |
8950 | Elf_Internal_Note *note, | |
d3fd4074 | 8951 | long tid, |
d69f560c | 8952 | char *base) |
07c6e936 NC |
8953 | { |
8954 | char buf[100]; | |
8955 | char *name; | |
8956 | asection *sect; | |
8957 | ||
d69f560c | 8958 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 8959 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 8960 | |
a50b1753 | 8961 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
8962 | if (name == NULL) |
8963 | return FALSE; | |
8964 | strcpy (name, buf); | |
8965 | ||
117ed4f8 | 8966 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
8967 | if (sect == NULL) |
8968 | return FALSE; | |
8969 | ||
eea6121a | 8970 | sect->size = note->descsz; |
07c6e936 | 8971 | sect->filepos = note->descpos; |
07c6e936 NC |
8972 | sect->alignment_power = 2; |
8973 | ||
f8843e87 AM |
8974 | /* This is the current thread. */ |
8975 | if (elf_tdata (abfd)->core_lwpid == tid) | |
d69f560c | 8976 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
8977 | |
8978 | return TRUE; | |
07c6e936 NC |
8979 | } |
8980 | ||
8981 | #define BFD_QNT_CORE_INFO 7 | |
8982 | #define BFD_QNT_CORE_STATUS 8 | |
8983 | #define BFD_QNT_CORE_GREG 9 | |
8984 | #define BFD_QNT_CORE_FPREG 10 | |
8985 | ||
8986 | static bfd_boolean | |
217aa764 | 8987 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
8988 | { |
8989 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 8990 | tid from the previous call to pass down to the next gregs |
07c6e936 | 8991 | function. */ |
d3fd4074 | 8992 | static long tid = 1; |
07c6e936 NC |
8993 | |
8994 | switch (note->type) | |
8995 | { | |
d69f560c KW |
8996 | case BFD_QNT_CORE_INFO: |
8997 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
8998 | case BFD_QNT_CORE_STATUS: | |
8999 | return elfcore_grok_nto_status (abfd, note, &tid); | |
9000 | case BFD_QNT_CORE_GREG: | |
9001 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
9002 | case BFD_QNT_CORE_FPREG: | |
9003 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
9004 | default: | |
9005 | return TRUE; | |
07c6e936 NC |
9006 | } |
9007 | } | |
9008 | ||
b15fa79e AM |
9009 | static bfd_boolean |
9010 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
9011 | { | |
9012 | char *name; | |
9013 | asection *sect; | |
9014 | size_t len; | |
9015 | ||
9016 | /* Use note name as section name. */ | |
9017 | len = note->namesz; | |
a50b1753 | 9018 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
9019 | if (name == NULL) |
9020 | return FALSE; | |
9021 | memcpy (name, note->namedata, len); | |
9022 | name[len - 1] = '\0'; | |
9023 | ||
9024 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
9025 | if (sect == NULL) | |
9026 | return FALSE; | |
9027 | ||
9028 | sect->size = note->descsz; | |
9029 | sect->filepos = note->descpos; | |
9030 | sect->alignment_power = 1; | |
9031 | ||
9032 | return TRUE; | |
9033 | } | |
9034 | ||
7c76fa91 MS |
9035 | /* Function: elfcore_write_note |
9036 | ||
47d9a591 | 9037 | Inputs: |
a39f3346 | 9038 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
9039 | name of note |
9040 | type of note | |
9041 | data for note | |
9042 | size of data for note | |
9043 | ||
a39f3346 AM |
9044 | Writes note to end of buffer. ELF64 notes are written exactly as |
9045 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
9046 | that they ought to have 8-byte namesz and descsz field, and have | |
9047 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
9048 | ||
7c76fa91 | 9049 | Return: |
a39f3346 | 9050 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
9051 | |
9052 | char * | |
a39f3346 | 9053 | elfcore_write_note (bfd *abfd, |
217aa764 | 9054 | char *buf, |
a39f3346 | 9055 | int *bufsiz, |
217aa764 | 9056 | const char *name, |
a39f3346 | 9057 | int type, |
217aa764 | 9058 | const void *input, |
a39f3346 | 9059 | int size) |
7c76fa91 MS |
9060 | { |
9061 | Elf_External_Note *xnp; | |
d4c88bbb | 9062 | size_t namesz; |
d4c88bbb | 9063 | size_t newspace; |
a39f3346 | 9064 | char *dest; |
7c76fa91 | 9065 | |
d4c88bbb | 9066 | namesz = 0; |
d4c88bbb | 9067 | if (name != NULL) |
a39f3346 | 9068 | namesz = strlen (name) + 1; |
d4c88bbb | 9069 | |
a39f3346 | 9070 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 9071 | |
a50b1753 | 9072 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
9073 | if (buf == NULL) |
9074 | return buf; | |
a39f3346 | 9075 | dest = buf + *bufsiz; |
7c76fa91 MS |
9076 | *bufsiz += newspace; |
9077 | xnp = (Elf_External_Note *) dest; | |
9078 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
9079 | H_PUT_32 (abfd, size, xnp->descsz); | |
9080 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
9081 | dest = xnp->name; |
9082 | if (name != NULL) | |
9083 | { | |
9084 | memcpy (dest, name, namesz); | |
9085 | dest += namesz; | |
a39f3346 | 9086 | while (namesz & 3) |
d4c88bbb AM |
9087 | { |
9088 | *dest++ = '\0'; | |
a39f3346 | 9089 | ++namesz; |
d4c88bbb AM |
9090 | } |
9091 | } | |
9092 | memcpy (dest, input, size); | |
a39f3346 AM |
9093 | dest += size; |
9094 | while (size & 3) | |
9095 | { | |
9096 | *dest++ = '\0'; | |
9097 | ++size; | |
9098 | } | |
9099 | return buf; | |
7c76fa91 MS |
9100 | } |
9101 | ||
7c76fa91 | 9102 | char * |
217aa764 AM |
9103 | elfcore_write_prpsinfo (bfd *abfd, |
9104 | char *buf, | |
9105 | int *bufsiz, | |
9106 | const char *fname, | |
9107 | const char *psargs) | |
7c76fa91 | 9108 | { |
183e98be AM |
9109 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9110 | ||
9111 | if (bed->elf_backend_write_core_note != NULL) | |
9112 | { | |
9113 | char *ret; | |
9114 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9115 | NT_PRPSINFO, fname, psargs); | |
9116 | if (ret != NULL) | |
9117 | return ret; | |
9118 | } | |
7c76fa91 | 9119 | |
1f20dca5 | 9120 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
183e98be AM |
9121 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
9122 | if (bed->s->elfclass == ELFCLASS32) | |
9123 | { | |
9124 | #if defined (HAVE_PSINFO32_T) | |
9125 | psinfo32_t data; | |
9126 | int note_type = NT_PSINFO; | |
9127 | #else | |
9128 | prpsinfo32_t data; | |
9129 | int note_type = NT_PRPSINFO; | |
9130 | #endif | |
9131 | ||
9132 | memset (&data, 0, sizeof (data)); | |
9133 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9134 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9135 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9136 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
9137 | } |
9138 | else | |
9139 | #endif | |
9140 | { | |
7c76fa91 | 9141 | #if defined (HAVE_PSINFO_T) |
183e98be AM |
9142 | psinfo_t data; |
9143 | int note_type = NT_PSINFO; | |
7c76fa91 | 9144 | #else |
183e98be AM |
9145 | prpsinfo_t data; |
9146 | int note_type = NT_PRPSINFO; | |
7c76fa91 MS |
9147 | #endif |
9148 | ||
183e98be AM |
9149 | memset (&data, 0, sizeof (data)); |
9150 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
9151 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
9152 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 9153 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 9154 | } |
7c76fa91 MS |
9155 | #endif /* PSINFO_T or PRPSINFO_T */ |
9156 | ||
1f20dca5 UW |
9157 | free (buf); |
9158 | return NULL; | |
9159 | } | |
9160 | ||
7c76fa91 | 9161 | char * |
217aa764 AM |
9162 | elfcore_write_prstatus (bfd *abfd, |
9163 | char *buf, | |
9164 | int *bufsiz, | |
9165 | long pid, | |
9166 | int cursig, | |
9167 | const void *gregs) | |
7c76fa91 | 9168 | { |
183e98be | 9169 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 9170 | |
183e98be AM |
9171 | if (bed->elf_backend_write_core_note != NULL) |
9172 | { | |
9173 | char *ret; | |
9174 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
9175 | NT_PRSTATUS, | |
9176 | pid, cursig, gregs); | |
9177 | if (ret != NULL) | |
9178 | return ret; | |
9179 | } | |
9180 | ||
1f20dca5 | 9181 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
9182 | #if defined (HAVE_PRSTATUS32_T) |
9183 | if (bed->s->elfclass == ELFCLASS32) | |
9184 | { | |
9185 | prstatus32_t prstat; | |
9186 | ||
9187 | memset (&prstat, 0, sizeof (prstat)); | |
9188 | prstat.pr_pid = pid; | |
9189 | prstat.pr_cursig = cursig; | |
9190 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9191 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9192 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9193 | } | |
9194 | else | |
9195 | #endif | |
9196 | { | |
9197 | prstatus_t prstat; | |
9198 | ||
9199 | memset (&prstat, 0, sizeof (prstat)); | |
9200 | prstat.pr_pid = pid; | |
9201 | prstat.pr_cursig = cursig; | |
9202 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 9203 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
9204 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
9205 | } | |
7c76fa91 MS |
9206 | #endif /* HAVE_PRSTATUS_T */ |
9207 | ||
1f20dca5 UW |
9208 | free (buf); |
9209 | return NULL; | |
9210 | } | |
9211 | ||
51316059 MS |
9212 | #if defined (HAVE_LWPSTATUS_T) |
9213 | char * | |
217aa764 AM |
9214 | elfcore_write_lwpstatus (bfd *abfd, |
9215 | char *buf, | |
9216 | int *bufsiz, | |
9217 | long pid, | |
9218 | int cursig, | |
9219 | const void *gregs) | |
51316059 MS |
9220 | { |
9221 | lwpstatus_t lwpstat; | |
183e98be | 9222 | const char *note_name = "CORE"; |
51316059 MS |
9223 | |
9224 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
9225 | lwpstat.pr_lwpid = pid >> 16; | |
9226 | lwpstat.pr_cursig = cursig; | |
9227 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
9228 | memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); | |
9229 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
9230 | #if !defined(gregs) | |
9231 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
9232 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
9233 | #else | |
9234 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
9235 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
9236 | #endif | |
9237 | #endif | |
47d9a591 | 9238 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
9239 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
9240 | } | |
9241 | #endif /* HAVE_LWPSTATUS_T */ | |
9242 | ||
7c76fa91 MS |
9243 | #if defined (HAVE_PSTATUS_T) |
9244 | char * | |
217aa764 AM |
9245 | elfcore_write_pstatus (bfd *abfd, |
9246 | char *buf, | |
9247 | int *bufsiz, | |
9248 | long pid, | |
6c10990d NC |
9249 | int cursig ATTRIBUTE_UNUSED, |
9250 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 9251 | { |
183e98be AM |
9252 | const char *note_name = "CORE"; |
9253 | #if defined (HAVE_PSTATUS32_T) | |
9254 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 9255 | |
183e98be AM |
9256 | if (bed->s->elfclass == ELFCLASS32) |
9257 | { | |
9258 | pstatus32_t pstat; | |
9259 | ||
9260 | memset (&pstat, 0, sizeof (pstat)); | |
9261 | pstat.pr_pid = pid & 0xffff; | |
9262 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9263 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9264 | return buf; | |
9265 | } | |
9266 | else | |
9267 | #endif | |
9268 | { | |
9269 | pstatus_t pstat; | |
9270 | ||
9271 | memset (&pstat, 0, sizeof (pstat)); | |
9272 | pstat.pr_pid = pid & 0xffff; | |
9273 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
9274 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
9275 | return buf; | |
9276 | } | |
7c76fa91 MS |
9277 | } |
9278 | #endif /* HAVE_PSTATUS_T */ | |
9279 | ||
9280 | char * | |
217aa764 AM |
9281 | elfcore_write_prfpreg (bfd *abfd, |
9282 | char *buf, | |
9283 | int *bufsiz, | |
9284 | const void *fpregs, | |
9285 | int size) | |
7c76fa91 | 9286 | { |
183e98be | 9287 | const char *note_name = "CORE"; |
47d9a591 | 9288 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9289 | note_name, NT_FPREGSET, fpregs, size); |
9290 | } | |
9291 | ||
9292 | char * | |
217aa764 AM |
9293 | elfcore_write_prxfpreg (bfd *abfd, |
9294 | char *buf, | |
9295 | int *bufsiz, | |
9296 | const void *xfpregs, | |
9297 | int size) | |
7c76fa91 MS |
9298 | { |
9299 | char *note_name = "LINUX"; | |
47d9a591 | 9300 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
9301 | note_name, NT_PRXFPREG, xfpregs, size); |
9302 | } | |
9303 | ||
4339cae0 L |
9304 | char * |
9305 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
9306 | const void *xfpregs, int size) | |
9307 | { | |
9308 | char *note_name = "LINUX"; | |
9309 | return elfcore_write_note (abfd, buf, bufsiz, | |
9310 | note_name, NT_X86_XSTATE, xfpregs, size); | |
9311 | } | |
9312 | ||
97753bd5 AM |
9313 | char * |
9314 | elfcore_write_ppc_vmx (bfd *abfd, | |
9315 | char *buf, | |
9316 | int *bufsiz, | |
9317 | const void *ppc_vmx, | |
9318 | int size) | |
9319 | { | |
9320 | char *note_name = "LINUX"; | |
9321 | return elfcore_write_note (abfd, buf, bufsiz, | |
9322 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
9323 | } | |
9324 | ||
89eeb0bc LM |
9325 | char * |
9326 | elfcore_write_ppc_vsx (bfd *abfd, | |
9327 | char *buf, | |
9328 | int *bufsiz, | |
9329 | const void *ppc_vsx, | |
9330 | int size) | |
9331 | { | |
9332 | char *note_name = "LINUX"; | |
9333 | return elfcore_write_note (abfd, buf, bufsiz, | |
9334 | note_name, NT_PPC_VSX, ppc_vsx, size); | |
9335 | } | |
9336 | ||
0675e188 UW |
9337 | static char * |
9338 | elfcore_write_s390_high_gprs (bfd *abfd, | |
9339 | char *buf, | |
9340 | int *bufsiz, | |
9341 | const void *s390_high_gprs, | |
9342 | int size) | |
9343 | { | |
9344 | char *note_name = "LINUX"; | |
9345 | return elfcore_write_note (abfd, buf, bufsiz, | |
9346 | note_name, NT_S390_HIGH_GPRS, | |
9347 | s390_high_gprs, size); | |
9348 | } | |
9349 | ||
d7eeb400 MS |
9350 | char * |
9351 | elfcore_write_s390_timer (bfd *abfd, | |
9352 | char *buf, | |
9353 | int *bufsiz, | |
9354 | const void *s390_timer, | |
9355 | int size) | |
9356 | { | |
9357 | char *note_name = "LINUX"; | |
9358 | return elfcore_write_note (abfd, buf, bufsiz, | |
9359 | note_name, NT_S390_TIMER, s390_timer, size); | |
9360 | } | |
9361 | ||
9362 | char * | |
9363 | elfcore_write_s390_todcmp (bfd *abfd, | |
9364 | char *buf, | |
9365 | int *bufsiz, | |
9366 | const void *s390_todcmp, | |
9367 | int size) | |
9368 | { | |
9369 | char *note_name = "LINUX"; | |
9370 | return elfcore_write_note (abfd, buf, bufsiz, | |
9371 | note_name, NT_S390_TODCMP, s390_todcmp, size); | |
9372 | } | |
9373 | ||
9374 | char * | |
9375 | elfcore_write_s390_todpreg (bfd *abfd, | |
9376 | char *buf, | |
9377 | int *bufsiz, | |
9378 | const void *s390_todpreg, | |
9379 | int size) | |
9380 | { | |
9381 | char *note_name = "LINUX"; | |
9382 | return elfcore_write_note (abfd, buf, bufsiz, | |
9383 | note_name, NT_S390_TODPREG, s390_todpreg, size); | |
9384 | } | |
9385 | ||
9386 | char * | |
9387 | elfcore_write_s390_ctrs (bfd *abfd, | |
9388 | char *buf, | |
9389 | int *bufsiz, | |
9390 | const void *s390_ctrs, | |
9391 | int size) | |
9392 | { | |
9393 | char *note_name = "LINUX"; | |
9394 | return elfcore_write_note (abfd, buf, bufsiz, | |
9395 | note_name, NT_S390_CTRS, s390_ctrs, size); | |
9396 | } | |
9397 | ||
9398 | char * | |
9399 | elfcore_write_s390_prefix (bfd *abfd, | |
9400 | char *buf, | |
9401 | int *bufsiz, | |
9402 | const void *s390_prefix, | |
9403 | int size) | |
9404 | { | |
9405 | char *note_name = "LINUX"; | |
9406 | return elfcore_write_note (abfd, buf, bufsiz, | |
9407 | note_name, NT_S390_PREFIX, s390_prefix, size); | |
9408 | } | |
9409 | ||
355b81d9 UW |
9410 | char * |
9411 | elfcore_write_s390_last_break (bfd *abfd, | |
9412 | char *buf, | |
9413 | int *bufsiz, | |
9414 | const void *s390_last_break, | |
9415 | int size) | |
9416 | { | |
9417 | char *note_name = "LINUX"; | |
9418 | return elfcore_write_note (abfd, buf, bufsiz, | |
9419 | note_name, NT_S390_LAST_BREAK, | |
9420 | s390_last_break, size); | |
9421 | } | |
9422 | ||
9423 | char * | |
9424 | elfcore_write_s390_system_call (bfd *abfd, | |
9425 | char *buf, | |
9426 | int *bufsiz, | |
9427 | const void *s390_system_call, | |
9428 | int size) | |
9429 | { | |
9430 | char *note_name = "LINUX"; | |
9431 | return elfcore_write_note (abfd, buf, bufsiz, | |
9432 | note_name, NT_S390_SYSTEM_CALL, | |
9433 | s390_system_call, size); | |
9434 | } | |
9435 | ||
faa9a424 UW |
9436 | char * |
9437 | elfcore_write_arm_vfp (bfd *abfd, | |
9438 | char *buf, | |
9439 | int *bufsiz, | |
9440 | const void *arm_vfp, | |
9441 | int size) | |
9442 | { | |
9443 | char *note_name = "LINUX"; | |
9444 | return elfcore_write_note (abfd, buf, bufsiz, | |
9445 | note_name, NT_ARM_VFP, arm_vfp, size); | |
9446 | } | |
9447 | ||
652451f8 YZ |
9448 | char * |
9449 | elfcore_write_aarch_tls (bfd *abfd, | |
9450 | char *buf, | |
9451 | int *bufsiz, | |
9452 | const void *aarch_tls, | |
9453 | int size) | |
9454 | { | |
9455 | char *note_name = "LINUX"; | |
9456 | return elfcore_write_note (abfd, buf, bufsiz, | |
9457 | note_name, NT_ARM_TLS, aarch_tls, size); | |
9458 | } | |
9459 | ||
9460 | char * | |
9461 | elfcore_write_aarch_hw_break (bfd *abfd, | |
9462 | char *buf, | |
9463 | int *bufsiz, | |
9464 | const void *aarch_hw_break, | |
9465 | int size) | |
9466 | { | |
9467 | char *note_name = "LINUX"; | |
9468 | return elfcore_write_note (abfd, buf, bufsiz, | |
9469 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
9470 | } | |
9471 | ||
9472 | char * | |
9473 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
9474 | char *buf, | |
9475 | int *bufsiz, | |
9476 | const void *aarch_hw_watch, | |
9477 | int size) | |
9478 | { | |
9479 | char *note_name = "LINUX"; | |
9480 | return elfcore_write_note (abfd, buf, bufsiz, | |
9481 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
9482 | } | |
9483 | ||
bb864ac1 CES |
9484 | char * |
9485 | elfcore_write_register_note (bfd *abfd, | |
9486 | char *buf, | |
9487 | int *bufsiz, | |
9488 | const char *section, | |
9489 | const void *data, | |
9490 | int size) | |
9491 | { | |
9492 | if (strcmp (section, ".reg2") == 0) | |
9493 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
9494 | if (strcmp (section, ".reg-xfp") == 0) | |
9495 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
9496 | if (strcmp (section, ".reg-xstate") == 0) |
9497 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9498 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
9499 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
9500 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
9501 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
9502 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
9503 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
9504 | if (strcmp (section, ".reg-s390-timer") == 0) |
9505 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
9506 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
9507 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
9508 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
9509 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
9510 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
9511 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
9512 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
9513 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
9514 | if (strcmp (section, ".reg-s390-last-break") == 0) |
9515 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
9516 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
9517 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
9518 | if (strcmp (section, ".reg-arm-vfp") == 0) |
9519 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
9520 | if (strcmp (section, ".reg-aarch-tls") == 0) |
9521 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
9522 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
9523 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
9524 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
9525 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
9526 | return NULL; |
9527 | } | |
9528 | ||
b34976b6 | 9529 | static bfd_boolean |
718175fa | 9530 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset) |
252b5132 | 9531 | { |
c044fabd | 9532 | char *p; |
252b5132 | 9533 | |
252b5132 RH |
9534 | p = buf; |
9535 | while (p < buf + size) | |
9536 | { | |
c044fabd KH |
9537 | /* FIXME: bad alignment assumption. */ |
9538 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
9539 | Elf_Internal_Note in; |
9540 | ||
baea7ef1 AM |
9541 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
9542 | return FALSE; | |
9543 | ||
dc810e39 | 9544 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 9545 | |
dc810e39 | 9546 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 9547 | in.namedata = xnp->name; |
baea7ef1 AM |
9548 | if (in.namesz > buf - in.namedata + size) |
9549 | return FALSE; | |
252b5132 | 9550 | |
dc810e39 | 9551 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
9552 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
9553 | in.descpos = offset + (in.descdata - buf); | |
baea7ef1 AM |
9554 | if (in.descsz != 0 |
9555 | && (in.descdata >= buf + size | |
9556 | || in.descsz > buf - in.descdata + size)) | |
9557 | return FALSE; | |
252b5132 | 9558 | |
718175fa JK |
9559 | switch (bfd_get_format (abfd)) |
9560 | { | |
9561 | default: | |
9562 | return TRUE; | |
9563 | ||
9564 | case bfd_core: | |
9565 | if (CONST_STRNEQ (in.namedata, "NetBSD-CORE")) | |
9566 | { | |
9567 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |
9568 | return FALSE; | |
9569 | } | |
67cc5033 MK |
9570 | else if (CONST_STRNEQ (in.namedata, "OpenBSD")) |
9571 | { | |
9572 | if (! elfcore_grok_openbsd_note (abfd, &in)) | |
9573 | return FALSE; | |
9574 | } | |
718175fa JK |
9575 | else if (CONST_STRNEQ (in.namedata, "QNX")) |
9576 | { | |
9577 | if (! elfcore_grok_nto_note (abfd, &in)) | |
9578 | return FALSE; | |
9579 | } | |
b15fa79e AM |
9580 | else if (CONST_STRNEQ (in.namedata, "SPU/")) |
9581 | { | |
9582 | if (! elfcore_grok_spu_note (abfd, &in)) | |
9583 | return FALSE; | |
9584 | } | |
718175fa JK |
9585 | else |
9586 | { | |
9587 | if (! elfcore_grok_note (abfd, &in)) | |
9588 | return FALSE; | |
9589 | } | |
9590 | break; | |
9591 | ||
9592 | case bfd_object: | |
9593 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
9594 | { | |
9595 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
9596 | return FALSE; | |
9597 | } | |
e21e5835 NC |
9598 | else if (in.namesz == sizeof "stapsdt" |
9599 | && strcmp (in.namedata, "stapsdt") == 0) | |
9600 | { | |
9601 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
9602 | return FALSE; | |
9603 | } | |
718175fa | 9604 | break; |
08a40648 | 9605 | } |
252b5132 RH |
9606 | |
9607 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
9608 | } | |
9609 | ||
718175fa JK |
9610 | return TRUE; |
9611 | } | |
9612 | ||
9613 | static bfd_boolean | |
9614 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) | |
9615 | { | |
9616 | char *buf; | |
9617 | ||
9618 | if (size <= 0) | |
9619 | return TRUE; | |
9620 | ||
9621 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
9622 | return FALSE; | |
9623 | ||
a50b1753 | 9624 | buf = (char *) bfd_malloc (size); |
718175fa JK |
9625 | if (buf == NULL) |
9626 | return FALSE; | |
9627 | ||
9628 | if (bfd_bread (buf, size, abfd) != size | |
9629 | || !elf_parse_notes (abfd, buf, size, offset)) | |
9630 | { | |
9631 | free (buf); | |
9632 | return FALSE; | |
9633 | } | |
9634 | ||
252b5132 | 9635 | free (buf); |
b34976b6 | 9636 | return TRUE; |
252b5132 | 9637 | } |
98d8431c JB |
9638 | \f |
9639 | /* Providing external access to the ELF program header table. */ | |
9640 | ||
9641 | /* Return an upper bound on the number of bytes required to store a | |
9642 | copy of ABFD's program header table entries. Return -1 if an error | |
9643 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9644 | |
98d8431c | 9645 | long |
217aa764 | 9646 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
9647 | { |
9648 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9649 | { | |
9650 | bfd_set_error (bfd_error_wrong_format); | |
9651 | return -1; | |
9652 | } | |
9653 | ||
936e320b | 9654 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
9655 | } |
9656 | ||
98d8431c JB |
9657 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
9658 | will be stored as an array of Elf_Internal_Phdr structures, as | |
9659 | defined in include/elf/internal.h. To find out how large the | |
9660 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
9661 | ||
9662 | Return the number of program header table entries read, or -1 if an | |
9663 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 9664 | |
98d8431c | 9665 | int |
217aa764 | 9666 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
9667 | { |
9668 | int num_phdrs; | |
9669 | ||
9670 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
9671 | { | |
9672 | bfd_set_error (bfd_error_wrong_format); | |
9673 | return -1; | |
9674 | } | |
9675 | ||
9676 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 9677 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
9678 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
9679 | ||
9680 | return num_phdrs; | |
9681 | } | |
ae4221d7 | 9682 | |
db6751f2 | 9683 | enum elf_reloc_type_class |
217aa764 | 9684 | _bfd_elf_reloc_type_class (const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) |
db6751f2 JJ |
9685 | { |
9686 | return reloc_class_normal; | |
9687 | } | |
f8df10f4 | 9688 | |
47d9a591 | 9689 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
9690 | relocation against a local symbol. */ |
9691 | ||
9692 | bfd_vma | |
217aa764 AM |
9693 | _bfd_elf_rela_local_sym (bfd *abfd, |
9694 | Elf_Internal_Sym *sym, | |
8517fae7 | 9695 | asection **psec, |
217aa764 | 9696 | Elf_Internal_Rela *rel) |
f8df10f4 | 9697 | { |
8517fae7 | 9698 | asection *sec = *psec; |
f8df10f4 JJ |
9699 | bfd_vma relocation; |
9700 | ||
9701 | relocation = (sec->output_section->vma | |
9702 | + sec->output_offset | |
9703 | + sym->st_value); | |
9704 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 9705 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 9706 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 9707 | { |
f8df10f4 | 9708 | rel->r_addend = |
8517fae7 | 9709 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 9710 | elf_section_data (sec)->sec_info, |
753731ee AM |
9711 | sym->st_value + rel->r_addend); |
9712 | if (sec != *psec) | |
9713 | { | |
9714 | /* If we have changed the section, and our original section is | |
9715 | marked with SEC_EXCLUDE, it means that the original | |
9716 | SEC_MERGE section has been completely subsumed in some | |
9717 | other SEC_MERGE section. In this case, we need to leave | |
9718 | some info around for --emit-relocs. */ | |
9719 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
9720 | sec->kept_section = *psec; | |
9721 | sec = *psec; | |
9722 | } | |
8517fae7 AM |
9723 | rel->r_addend -= relocation; |
9724 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
9725 | } |
9726 | return relocation; | |
9727 | } | |
c629eae0 JJ |
9728 | |
9729 | bfd_vma | |
217aa764 AM |
9730 | _bfd_elf_rel_local_sym (bfd *abfd, |
9731 | Elf_Internal_Sym *sym, | |
9732 | asection **psec, | |
9733 | bfd_vma addend) | |
47d9a591 | 9734 | { |
c629eae0 JJ |
9735 | asection *sec = *psec; |
9736 | ||
dbaa2011 | 9737 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
9738 | return sym->st_value + addend; |
9739 | ||
9740 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 9741 | elf_section_data (sec)->sec_info, |
753731ee | 9742 | sym->st_value + addend); |
c629eae0 JJ |
9743 | } |
9744 | ||
9745 | bfd_vma | |
217aa764 | 9746 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 9747 | struct bfd_link_info *info, |
217aa764 AM |
9748 | asection *sec, |
9749 | bfd_vma offset) | |
c629eae0 | 9750 | { |
68bfbfcc | 9751 | switch (sec->sec_info_type) |
65765700 | 9752 | { |
dbaa2011 | 9753 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
9754 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
9755 | offset); | |
dbaa2011 | 9756 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 9757 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
65765700 | 9758 | default: |
310fd250 L |
9759 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
9760 | { | |
9761 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9762 | bfd_size_type address_size = bed->s->arch_size / 8; | |
9763 | offset = sec->size - offset - address_size; | |
9764 | } | |
65765700 JJ |
9765 | return offset; |
9766 | } | |
c629eae0 | 9767 | } |
3333a7c3 RM |
9768 | \f |
9769 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
9770 | reconstruct an ELF file by reading the segments out of remote memory | |
9771 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
9772 | points to. If not null, *LOADBASEP is filled in with the difference | |
9773 | between the VMAs from which the segments were read, and the VMAs the | |
9774 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
9775 | ||
9776 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
9777 | remote memory at target address VMA into the local buffer at MYADDR; it | |
9778 | should return zero on success or an `errno' code on failure. TEMPL must | |
9779 | be a BFD for an ELF target with the word size and byte order found in | |
9780 | the remote memory. */ | |
9781 | ||
9782 | bfd * | |
217aa764 AM |
9783 | bfd_elf_bfd_from_remote_memory |
9784 | (bfd *templ, | |
9785 | bfd_vma ehdr_vma, | |
9786 | bfd_vma *loadbasep, | |
fe78531d | 9787 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
9788 | { |
9789 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
9790 | (templ, ehdr_vma, loadbasep, target_read_memory); | |
9791 | } | |
4c45e5c9 JJ |
9792 | \f |
9793 | long | |
c9727e01 AM |
9794 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
9795 | long symcount ATTRIBUTE_UNUSED, | |
9796 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 9797 | long dynsymcount, |
c9727e01 AM |
9798 | asymbol **dynsyms, |
9799 | asymbol **ret) | |
4c45e5c9 JJ |
9800 | { |
9801 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
9802 | asection *relplt; | |
9803 | asymbol *s; | |
9804 | const char *relplt_name; | |
9805 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
9806 | arelent *p; | |
9807 | long count, i, n; | |
9808 | size_t size; | |
9809 | Elf_Internal_Shdr *hdr; | |
9810 | char *names; | |
9811 | asection *plt; | |
9812 | ||
8615f3f2 AM |
9813 | *ret = NULL; |
9814 | ||
90e3cdf2 JJ |
9815 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
9816 | return 0; | |
9817 | ||
8615f3f2 AM |
9818 | if (dynsymcount <= 0) |
9819 | return 0; | |
9820 | ||
4c45e5c9 JJ |
9821 | if (!bed->plt_sym_val) |
9822 | return 0; | |
9823 | ||
9824 | relplt_name = bed->relplt_name; | |
9825 | if (relplt_name == NULL) | |
d35fd659 | 9826 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
9827 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
9828 | if (relplt == NULL) | |
9829 | return 0; | |
9830 | ||
9831 | hdr = &elf_section_data (relplt)->this_hdr; | |
9832 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
9833 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
9834 | return 0; | |
9835 | ||
9836 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
9837 | if (plt == NULL) | |
9838 | return 0; | |
9839 | ||
9840 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 9841 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
9842 | return -1; |
9843 | ||
eea6121a | 9844 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
9845 | size = count * sizeof (asymbol); |
9846 | p = relplt->relocation; | |
cb53bf42 | 9847 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
9848 | { |
9849 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
9850 | if (p->addend != 0) | |
9851 | { | |
9852 | #ifdef BFD64 | |
9853 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
9854 | #else | |
9855 | size += sizeof ("+0x") - 1 + 8; | |
9856 | #endif | |
9857 | } | |
9858 | } | |
4c45e5c9 | 9859 | |
a50b1753 | 9860 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
9861 | if (s == NULL) |
9862 | return -1; | |
9863 | ||
9864 | names = (char *) (s + count); | |
9865 | p = relplt->relocation; | |
9866 | n = 0; | |
cb53bf42 | 9867 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
9868 | { |
9869 | size_t len; | |
9870 | bfd_vma addr; | |
9871 | ||
9872 | addr = bed->plt_sym_val (i, plt, p); | |
9873 | if (addr == (bfd_vma) -1) | |
9874 | continue; | |
9875 | ||
9876 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
9877 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
9878 | we are defining a symbol, ensure one of them is set. */ | |
9879 | if ((s->flags & BSF_LOCAL) == 0) | |
9880 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 9881 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
9882 | s->section = plt; |
9883 | s->value = addr - plt->vma; | |
9884 | s->name = names; | |
8f39ba8e | 9885 | s->udata.p = NULL; |
4c45e5c9 JJ |
9886 | len = strlen ((*p->sym_ptr_ptr)->name); |
9887 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
9888 | names += len; | |
041de40d AM |
9889 | if (p->addend != 0) |
9890 | { | |
1d770845 | 9891 | char buf[30], *a; |
d324f6d6 | 9892 | |
041de40d AM |
9893 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
9894 | names += sizeof ("+0x") - 1; | |
1d770845 L |
9895 | bfd_sprintf_vma (abfd, buf, p->addend); |
9896 | for (a = buf; *a == '0'; ++a) | |
9897 | ; | |
9898 | len = strlen (a); | |
9899 | memcpy (names, a, len); | |
9900 | names += len; | |
041de40d | 9901 | } |
4c45e5c9 JJ |
9902 | memcpy (names, "@plt", sizeof ("@plt")); |
9903 | names += sizeof ("@plt"); | |
8f39ba8e | 9904 | ++s, ++n; |
4c45e5c9 JJ |
9905 | } |
9906 | ||
9907 | return n; | |
9908 | } | |
3d7f7666 | 9909 | |
3b22753a L |
9910 | /* It is only used by x86-64 so far. */ |
9911 | asection _bfd_elf_large_com_section | |
9912 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, | |
f592407e | 9913 | SEC_IS_COMMON, NULL, "LARGE_COMMON", 0); |
ecca9871 | 9914 | |
d1036acb L |
9915 | void |
9916 | _bfd_elf_set_osabi (bfd * abfd, | |
9917 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
9918 | { | |
9919 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
9920 | ||
9921 | i_ehdrp = elf_elfheader (abfd); | |
9922 | ||
9923 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
9924 | |
9925 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 9926 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 9927 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 9928 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 9929 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 9930 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 9931 | } |
fcb93ecf PB |
9932 | |
9933 | ||
9934 | /* Return TRUE for ELF symbol types that represent functions. | |
9935 | This is the default version of this function, which is sufficient for | |
d8045f23 | 9936 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
9937 | |
9938 | bfd_boolean | |
9939 | _bfd_elf_is_function_type (unsigned int type) | |
9940 | { | |
d8045f23 NC |
9941 | return (type == STT_FUNC |
9942 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 9943 | } |
9f296da3 | 9944 | |
aef36ac1 AM |
9945 | /* If the ELF symbol SYM might be a function in SEC, return the |
9946 | function size and set *CODE_OFF to the function's entry point, | |
9947 | otherwise return zero. */ | |
9f296da3 | 9948 | |
aef36ac1 AM |
9949 | bfd_size_type |
9950 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
9951 | bfd_vma *code_off) | |
9f296da3 | 9952 | { |
aef36ac1 AM |
9953 | bfd_size_type size; |
9954 | ||
ff9e0f5b | 9955 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
9956 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
9957 | || sym->section != sec) | |
9958 | return 0; | |
ff9e0f5b | 9959 | |
ff9e0f5b | 9960 | *code_off = sym->value; |
aef36ac1 AM |
9961 | size = 0; |
9962 | if (!(sym->flags & BSF_SYNTHETIC)) | |
9963 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
9964 | if (size == 0) | |
9965 | size = 1; | |
9966 | return size; | |
9f296da3 | 9967 | } |