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Correct spelling of "relocatable".
[thirdparty/binutils-gdb.git] / bfd / elf.c
CommitLineData
252b5132 1/* ELF executable support for BFD.
f0abc2a1
AM		 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3 2003 Free Software Foundation, Inc.
252b5132 4
5e8d7549 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
5e8d7549
NC		 7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
252b5132 11
5e8d7549
NC		 12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
5e8d7549 17 You should have received a copy of the GNU General Public License
b34976b6 18 along with this program; if not, write to the Free Software
5e8d7549 19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
252b5132 20
661a3fd4 21/* SECTION
47d9a591 22
252b5132
RH		 23 ELF backends
24
25 BFD support for ELF formats is being worked on.
26 Currently, the best supported back ends are for sparc and i386
27 (running svr4 or Solaris 2).
28
29 Documentation of the internals of the support code still needs
30 to be written. The code is changing quickly enough that we
661a3fd4 31 haven't bothered yet. */
252b5132 32
7ee38065
MS		 33/* For sparc64-cross-sparc32. */
34#define _SYSCALL32
252b5132
RH		 35#include "bfd.h"
36#include "sysdep.h"
37#include "bfdlink.h"
38#include "libbfd.h"
39#define ARCH_SIZE 0
40#include "elf-bfd.h"
e0e8c97f 41#include "libiberty.h"
252b5132
RH		 42
43static INLINE struct elf_segment_map *make_mapping
b34976b6
AM		 44 PARAMS ((bfd *, asection **, unsigned int, unsigned int, bfd_boolean));
45static bfd_boolean map_sections_to_segments
46 PARAMS ((bfd *));
47static int elf_sort_sections
48 PARAMS ((const PTR, const PTR));
49static bfd_boolean assign_file_positions_for_segments
50 PARAMS ((bfd *));
51static bfd_boolean assign_file_positions_except_relocs
52 PARAMS ((bfd *));
53static bfd_boolean prep_headers
54 PARAMS ((bfd *));
55static bfd_boolean swap_out_syms
56 PARAMS ((bfd *, struct bfd_strtab_hash **, int));
57static bfd_boolean copy_private_bfd_data
58 PARAMS ((bfd *, bfd *));
59static char *elf_read
60 PARAMS ((bfd *, file_ptr, bfd_size_type));
61static const char *group_signature
62 PARAMS ((bfd *, Elf_Internal_Shdr *));
63static bfd_boolean setup_group
64 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
65static void merge_sections_remove_hook
66 PARAMS ((bfd *, asection *));
67static void elf_fake_sections
68 PARAMS ((bfd *, asection *, PTR));
69static bfd_boolean assign_section_numbers
70 PARAMS ((bfd *));
71static INLINE int sym_is_global
72 PARAMS ((bfd *, asymbol *));
73static bfd_boolean elf_map_symbols
74 PARAMS ((bfd *));
75static bfd_size_type get_program_header_size
76 PARAMS ((bfd *));
77static bfd_boolean elfcore_read_notes
78 PARAMS ((bfd *, file_ptr, bfd_size_type));
79static bfd_boolean elf_find_function
80 PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
81 const char **));
82static int elfcore_make_pid
83 PARAMS ((bfd *));
84static bfd_boolean elfcore_maybe_make_sect
85 PARAMS ((bfd *, char *, asection *));
86static bfd_boolean elfcore_make_note_pseudosection
87 PARAMS ((bfd *, char *, Elf_Internal_Note *));
88static bfd_boolean elfcore_grok_prfpreg
89 PARAMS ((bfd *, Elf_Internal_Note *));
90static bfd_boolean elfcore_grok_prxfpreg
91 PARAMS ((bfd *, Elf_Internal_Note *));
92static bfd_boolean elfcore_grok_note
93 PARAMS ((bfd *, Elf_Internal_Note *));
94static bfd_boolean elfcore_netbsd_get_lwpid
95 PARAMS ((Elf_Internal_Note *, int *));
96static bfd_boolean elfcore_grok_netbsd_procinfo
97 PARAMS ((bfd *, Elf_Internal_Note *));
98static bfd_boolean elfcore_grok_netbsd_note
99 PARAMS ((bfd *, Elf_Internal_Note *));
07c6e936
NC		 100static bfd_boolean elfcore_grok_nto_gregs
101 PARAMS ((bfd *, Elf_Internal_Note *, pid_t));
102static bfd_boolean elfcore_grok_nto_status
103 PARAMS ((bfd *, Elf_Internal_Note *, pid_t *));
104static bfd_boolean elfcore_grok_nto_note
105 PARAMS ((bfd *, Elf_Internal_Note *));
50b2bdb7 106
252b5132
RH		 107/* Swap version information in and out. The version information is
108 currently size independent. If that ever changes, this code will
109 need to move into elfcode.h. */
110
111/* Swap in a Verdef structure. */
112
113void
114_bfd_elf_swap_verdef_in (abfd, src, dst)
115 bfd *abfd;
116 const Elf_External_Verdef *src;
117 Elf_Internal_Verdef *dst;
118{
dc810e39
AM		 119 dst->vd_version = H_GET_16 (abfd, src->vd_version);
120 dst->vd_flags = H_GET_16 (abfd, src->vd_flags);
121 dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx);
122 dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt);
123 dst->vd_hash = H_GET_32 (abfd, src->vd_hash);
124 dst->vd_aux = H_GET_32 (abfd, src->vd_aux);
125 dst->vd_next = H_GET_32 (abfd, src->vd_next);
252b5132
RH		 126}
127
128/* Swap out a Verdef structure. */
129
130void
131_bfd_elf_swap_verdef_out (abfd, src, dst)
132 bfd *abfd;
133 const Elf_Internal_Verdef *src;
134 Elf_External_Verdef *dst;
135{
dc810e39
AM		 136 H_PUT_16 (abfd, src->vd_version, dst->vd_version);
137 H_PUT_16 (abfd, src->vd_flags, dst->vd_flags);
138 H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx);
139 H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt);
140 H_PUT_32 (abfd, src->vd_hash, dst->vd_hash);
141 H_PUT_32 (abfd, src->vd_aux, dst->vd_aux);
142 H_PUT_32 (abfd, src->vd_next, dst->vd_next);
252b5132
RH		 143}
144
145/* Swap in a Verdaux structure. */
146
147void
148_bfd_elf_swap_verdaux_in (abfd, src, dst)
149 bfd *abfd;
150 const Elf_External_Verdaux *src;
151 Elf_Internal_Verdaux *dst;
152{
dc810e39
AM		 153 dst->vda_name = H_GET_32 (abfd, src->vda_name);
154 dst->vda_next = H_GET_32 (abfd, src->vda_next);
252b5132
RH		 155}
156
157/* Swap out a Verdaux structure. */
158
159void
160_bfd_elf_swap_verdaux_out (abfd, src, dst)
161 bfd *abfd;
162 const Elf_Internal_Verdaux *src;
163 Elf_External_Verdaux *dst;
164{
dc810e39
AM		 165 H_PUT_32 (abfd, src->vda_name, dst->vda_name);
166 H_PUT_32 (abfd, src->vda_next, dst->vda_next);
252b5132
RH		 167}
168
169/* Swap in a Verneed structure. */
170
171void
172_bfd_elf_swap_verneed_in (abfd, src, dst)
173 bfd *abfd;
174 const Elf_External_Verneed *src;
175 Elf_Internal_Verneed *dst;
176{
dc810e39
AM		 177 dst->vn_version = H_GET_16 (abfd, src->vn_version);
178 dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt);
179 dst->vn_file = H_GET_32 (abfd, src->vn_file);
180 dst->vn_aux = H_GET_32 (abfd, src->vn_aux);
181 dst->vn_next = H_GET_32 (abfd, src->vn_next);
252b5132
RH		 182}
183
184/* Swap out a Verneed structure. */
185
186void
187_bfd_elf_swap_verneed_out (abfd, src, dst)
188 bfd *abfd;
189 const Elf_Internal_Verneed *src;
190 Elf_External_Verneed *dst;
191{
dc810e39
AM		 192 H_PUT_16 (abfd, src->vn_version, dst->vn_version);
193 H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt);
194 H_PUT_32 (abfd, src->vn_file, dst->vn_file);
195 H_PUT_32 (abfd, src->vn_aux, dst->vn_aux);
196 H_PUT_32 (abfd, src->vn_next, dst->vn_next);
252b5132
RH		 197}
198
199/* Swap in a Vernaux structure. */
200
201void
202_bfd_elf_swap_vernaux_in (abfd, src, dst)
203 bfd *abfd;
204 const Elf_External_Vernaux *src;
205 Elf_Internal_Vernaux *dst;
206{
dc810e39
AM		 207 dst->vna_hash = H_GET_32 (abfd, src->vna_hash);
208 dst->vna_flags = H_GET_16 (abfd, src->vna_flags);
209 dst->vna_other = H_GET_16 (abfd, src->vna_other);
210 dst->vna_name = H_GET_32 (abfd, src->vna_name);
211 dst->vna_next = H_GET_32 (abfd, src->vna_next);
252b5132
RH		 212}
213
214/* Swap out a Vernaux structure. */
215
216void
217_bfd_elf_swap_vernaux_out (abfd, src, dst)
218 bfd *abfd;
219 const Elf_Internal_Vernaux *src;
220 Elf_External_Vernaux *dst;
221{
dc810e39
AM		 222 H_PUT_32 (abfd, src->vna_hash, dst->vna_hash);
223 H_PUT_16 (abfd, src->vna_flags, dst->vna_flags);
224 H_PUT_16 (abfd, src->vna_other, dst->vna_other);
225 H_PUT_32 (abfd, src->vna_name, dst->vna_name);
226 H_PUT_32 (abfd, src->vna_next, dst->vna_next);
252b5132
RH		 227}
228
229/* Swap in a Versym structure. */
230
231void
232_bfd_elf_swap_versym_in (abfd, src, dst)
233 bfd *abfd;
234 const Elf_External_Versym *src;
235 Elf_Internal_Versym *dst;
236{
dc810e39 237 dst->vs_vers = H_GET_16 (abfd, src->vs_vers);
252b5132
RH		 238}
239
240/* Swap out a Versym structure. */
241
242void
243_bfd_elf_swap_versym_out (abfd, src, dst)
244 bfd *abfd;
245 const Elf_Internal_Versym *src;
246 Elf_External_Versym *dst;
247{
dc810e39 248 H_PUT_16 (abfd, src->vs_vers, dst->vs_vers);
252b5132
RH		 249}
250
251/* Standard ELF hash function. Do not change this function; you will
252 cause invalid hash tables to be generated. */
3a99b017 253
252b5132 254unsigned long
3a99b017
ILT		 255bfd_elf_hash (namearg)
256 const char *namearg;
252b5132 257{
3a99b017 258 const unsigned char *name = (const unsigned char *) namearg;
252b5132
RH		 259 unsigned long h = 0;
260 unsigned long g;
261 int ch;
262
263 while ((ch = *name++) != '\0')
264 {
265 h = (h << 4) + ch;
266 if ((g = (h & 0xf0000000)) != 0)
267 {
268 h ^= g >> 24;
269 /* The ELF ABI says `h &= ~g', but this is equivalent in
270 this case and on some machines one insn instead of two. */
271 h ^= g;
272 }
273 }
32dfa85d 274 return h & 0xffffffff;
252b5132
RH		 275}
276
277/* Read a specified number of bytes at a specified offset in an ELF
278 file, into a newly allocated buffer, and return a pointer to the
c044fabd 279 buffer. */
252b5132
RH		 280
281static char *
282elf_read (abfd, offset, size)
c044fabd 283 bfd *abfd;
dc810e39
AM		 284 file_ptr offset;
285 bfd_size_type size;
252b5132
RH		 286{
287 char *buf;
288
289 if ((buf = bfd_alloc (abfd, size)) == NULL)
290 return NULL;
dc810e39 291 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
252b5132 292 return NULL;
dc810e39 293 if (bfd_bread ((PTR) buf, size, abfd) != size)
252b5132
RH		 294 {
295 if (bfd_get_error () != bfd_error_system_call)
296 bfd_set_error (bfd_error_file_truncated);
297 return NULL;
298 }
299 return buf;
300}
301
b34976b6 302bfd_boolean
252b5132 303bfd_elf_mkobject (abfd)
c044fabd 304 bfd *abfd;
252b5132 305{
c044fabd
KH		 306 /* This just does initialization. */
307 /* coff_mkobject zalloc's space for tdata.coff_obj_data ... */
dc810e39
AM		 308 bfd_size_type amt = sizeof (struct elf_obj_tdata);
309 elf_tdata (abfd) = (struct elf_obj_tdata *) bfd_zalloc (abfd, amt);
252b5132 310 if (elf_tdata (abfd) == 0)
b34976b6 311 return FALSE;
c044fabd
KH		 312 /* Since everything is done at close time, do we need any
313 initialization? */
252b5132 314
b34976b6 315 return TRUE;
252b5132
RH		 316}
317
b34976b6 318bfd_boolean
252b5132 319bfd_elf_mkcorefile (abfd)
c044fabd 320 bfd *abfd;
252b5132 321{
c044fabd 322 /* I think this can be done just like an object file. */
252b5132
RH		 323 return bfd_elf_mkobject (abfd);
324}
325
326char *
327bfd_elf_get_str_section (abfd, shindex)
c044fabd 328 bfd *abfd;
252b5132
RH		 329 unsigned int shindex;
330{
331 Elf_Internal_Shdr **i_shdrp;
332 char *shstrtab = NULL;
dc810e39
AM		 333 file_ptr offset;
334 bfd_size_type shstrtabsize;
252b5132
RH		 335
336 i_shdrp = elf_elfsections (abfd);
337 if (i_shdrp == 0 || i_shdrp[shindex] == 0)
338 return 0;
339
340 shstrtab = (char *) i_shdrp[shindex]->contents;
341 if (shstrtab == NULL)
342 {
c044fabd 343 /* No cached one, attempt to read, and cache what we read. */
252b5132
RH		 344 offset = i_shdrp[shindex]->sh_offset;
345 shstrtabsize = i_shdrp[shindex]->sh_size;
346 shstrtab = elf_read (abfd, offset, shstrtabsize);
347 i_shdrp[shindex]->contents = (PTR) shstrtab;
348 }
349 return shstrtab;
350}
351
352char *
353bfd_elf_string_from_elf_section (abfd, shindex, strindex)
c044fabd 354 bfd *abfd;
252b5132
RH		 355 unsigned int shindex;
356 unsigned int strindex;
357{
358 Elf_Internal_Shdr *hdr;
359
360 if (strindex == 0)
361 return "";
362
363 hdr = elf_elfsections (abfd)[shindex];
364
365 if (hdr->contents == NULL
366 && bfd_elf_get_str_section (abfd, shindex) == NULL)
367 return NULL;
368
369 if (strindex >= hdr->sh_size)
370 {
371 (*_bfd_error_handler)
372 (_("%s: invalid string offset %u >= %lu for section `%s'"),
8f615d07 373 bfd_archive_filename (abfd), strindex, (unsigned long) hdr->sh_size,
252b5132
RH		 374 ((shindex == elf_elfheader(abfd)->e_shstrndx
375 && strindex == hdr->sh_name)
376 ? ".shstrtab"
377 : elf_string_from_elf_strtab (abfd, hdr->sh_name)));
378 return "";
379 }
380
381 return ((char *) hdr->contents) + strindex;
382}
383
6cdc0ccc
AM		 384/* Read and convert symbols to internal format.
385 SYMCOUNT specifies the number of symbols to read, starting from
386 symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF
387 are non-NULL, they are used to store the internal symbols, external
388 symbols, and symbol section index extensions, respectively. */
389
390Elf_Internal_Sym *
391bfd_elf_get_elf_syms (ibfd, symtab_hdr, symcount, symoffset,
392 intsym_buf, extsym_buf, extshndx_buf)
393 bfd *ibfd;
394 Elf_Internal_Shdr *symtab_hdr;
395 size_t symcount;
396 size_t symoffset;
397 Elf_Internal_Sym *intsym_buf;
398 PTR extsym_buf;
399 Elf_External_Sym_Shndx *extshndx_buf;
400{
401 Elf_Internal_Shdr *shndx_hdr;
402 PTR alloc_ext;
df622259 403 const bfd_byte *esym;
6cdc0ccc
AM		 404 Elf_External_Sym_Shndx *alloc_extshndx;
405 Elf_External_Sym_Shndx *shndx;
406 Elf_Internal_Sym *isym;
407 Elf_Internal_Sym *isymend;
408 struct elf_backend_data *bed;
409 size_t extsym_size;
410 bfd_size_type amt;
411 file_ptr pos;
412
413 if (symcount == 0)
414 return intsym_buf;
415
416 /* Normal syms might have section extension entries. */
417 shndx_hdr = NULL;
418 if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr)
419 shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr;
420
421 /* Read the symbols. */
422 alloc_ext = NULL;
423 alloc_extshndx = NULL;
424 bed = get_elf_backend_data (ibfd);
425 extsym_size = bed->s->sizeof_sym;
426 amt = symcount * extsym_size;
427 pos = symtab_hdr->sh_offset + symoffset * extsym_size;
428 if (extsym_buf == NULL)
429 {
430 alloc_ext = bfd_malloc (amt);
431 extsym_buf = alloc_ext;
432 }
433 if (extsym_buf == NULL
434 || bfd_seek (ibfd, pos, SEEK_SET) != 0
435 || bfd_bread (extsym_buf, amt, ibfd) != amt)
436 {
437 intsym_buf = NULL;
438 goto out;
439 }
440
441 if (shndx_hdr == NULL || shndx_hdr->sh_size == 0)
442 extshndx_buf = NULL;
443 else
444 {
445 amt = symcount * sizeof (Elf_External_Sym_Shndx);
446 pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx);
447 if (extshndx_buf == NULL)
448 {
449 alloc_extshndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
450 extshndx_buf = alloc_extshndx;
451 }
452 if (extshndx_buf == NULL
453 || bfd_seek (ibfd, pos, SEEK_SET) != 0
454 || bfd_bread (extshndx_buf, amt, ibfd) != amt)
455 {
456 intsym_buf = NULL;
457 goto out;
458 }
459 }
460
461 if (intsym_buf == NULL)
462 {
463 bfd_size_type amt = symcount * sizeof (Elf_Internal_Sym);
464 intsym_buf = (Elf_Internal_Sym *) bfd_malloc (amt);
465 if (intsym_buf == NULL)
466 goto out;
467 }
468
469 /* Convert the symbols to internal form. */
470 isymend = intsym_buf + symcount;
471 for (esym = extsym_buf, isym = intsym_buf, shndx = extshndx_buf;
472 isym < isymend;
473 esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL)
474 (*bed->s->swap_symbol_in) (ibfd, esym, (const PTR) shndx, isym);
475
476 out:
477 if (alloc_ext != NULL)
478 free (alloc_ext);
479 if (alloc_extshndx != NULL)
480 free (alloc_extshndx);
481
482 return intsym_buf;
483}
484
5cab59f6
AM		 485/* Look up a symbol name. */
486const char *
487bfd_elf_local_sym_name (abfd, isym)
488 bfd *abfd;
489 Elf_Internal_Sym *isym;
490{
491 unsigned int iname = isym->st_name;
492 unsigned int shindex = elf_tdata (abfd)->symtab_hdr.sh_link;
493 if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION)
494 {
495 iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name;
496 shindex = elf_elfheader (abfd)->e_shstrndx;
497 }
498
499 return bfd_elf_string_from_elf_section (abfd, shindex, iname);
500}
501
dbb410c3
AM		 502/* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP
503 sections. The first element is the flags, the rest are section
504 pointers. */
505
506typedef union elf_internal_group {
507 Elf_Internal_Shdr *shdr;
508 unsigned int flags;
509} Elf_Internal_Group;
510
b885599b
AM		 511/* Return the name of the group signature symbol. Why isn't the
512 signature just a string? */
513
514static const char *
515group_signature (abfd, ghdr)
516 bfd *abfd;
517 Elf_Internal_Shdr *ghdr;
518{
9dce4196 519 Elf_Internal_Shdr *hdr;
9dce4196
AM		 520 unsigned char esym[sizeof (Elf64_External_Sym)];
521 Elf_External_Sym_Shndx eshndx;
522 Elf_Internal_Sym isym;
b885599b
AM		 523
524 /* First we need to ensure the symbol table is available. */
525 if (! bfd_section_from_shdr (abfd, ghdr->sh_link))
526 return NULL;
527
9dce4196
AM		 528 /* Go read the symbol. */
529 hdr = &elf_tdata (abfd)->symtab_hdr;
6cdc0ccc
AM		 530 if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info,
531 &isym, esym, &eshndx) == NULL)
b885599b 532 return NULL;
9dce4196 533
5cab59f6 534 return bfd_elf_local_sym_name (abfd, &isym);
b885599b
AM		 535}
536
dbb410c3
AM		 537/* Set next_in_group list pointer, and group name for NEWSECT. */
538
b34976b6 539static bfd_boolean
dbb410c3
AM		 540setup_group (abfd, hdr, newsect)
541 bfd *abfd;
542 Elf_Internal_Shdr *hdr;
543 asection *newsect;
544{
545 unsigned int num_group = elf_tdata (abfd)->num_group;
546
547 /* If num_group is zero, read in all SHT_GROUP sections. The count
548 is set to -1 if there are no SHT_GROUP sections. */
549 if (num_group == 0)
550 {
551 unsigned int i, shnum;
552
553 /* First count the number of groups. If we have a SHT_GROUP
554 section with just a flag word (ie. sh_size is 4), ignore it. */
9ad5cbcf 555 shnum = elf_numsections (abfd);
dbb410c3
AM		 556 num_group = 0;
557 for (i = 0; i < shnum; i++)
558 {
559 Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i];
560 if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8)
561 num_group += 1;
562 }
563
564 if (num_group == 0)
973ffd63 565 num_group = (unsigned) -1;
dbb410c3
AM		 566 elf_tdata (abfd)->num_group = num_group;
567
568 if (num_group > 0)
569 {
570 /* We keep a list of elf section headers for group sections,
571 so we can find them quickly. */
572 bfd_size_type amt = num_group * sizeof (Elf_Internal_Shdr *);
573 elf_tdata (abfd)->group_sect_ptr = bfd_alloc (abfd, amt);
574 if (elf_tdata (abfd)->group_sect_ptr == NULL)
b34976b6 575 return FALSE;
dbb410c3
AM		 576
577 num_group = 0;
578 for (i = 0; i < shnum; i++)
579 {
580 Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i];
581 if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8)
582 {
973ffd63 583 unsigned char *src;
dbb410c3
AM		 584 Elf_Internal_Group *dest;
585
586 /* Add to list of sections. */
587 elf_tdata (abfd)->group_sect_ptr[num_group] = shdr;
588 num_group += 1;
589
590 /* Read the raw contents. */
591 BFD_ASSERT (sizeof (*dest) >= 4);
592 amt = shdr->sh_size * sizeof (*dest) / 4;
593 shdr->contents = bfd_alloc (abfd, amt);
594 if (shdr->contents == NULL
595 || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0
596 || (bfd_bread (shdr->contents, shdr->sh_size, abfd)
597 != shdr->sh_size))
b34976b6 598 return FALSE;
dbb410c3
AM		 599
600 /* Translate raw contents, a flag word followed by an
601 array of elf section indices all in target byte order,
602 to the flag word followed by an array of elf section
603 pointers. */
604 src = shdr->contents + shdr->sh_size;
605 dest = (Elf_Internal_Group *) (shdr->contents + amt);
606 while (1)
607 {
608 unsigned int idx;
609
610 src -= 4;
611 --dest;
612 idx = H_GET_32 (abfd, src);
613 if (src == shdr->contents)
614 {
615 dest->flags = idx;
b885599b
AM		 616 if (shdr->bfd_section != NULL && (idx & GRP_COMDAT))
617 shdr->bfd_section->flags
618 |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
dbb410c3
AM		 619 break;
620 }
621 if (idx >= shnum)
622 {
623 ((*_bfd_error_handler)
624 (_("%s: invalid SHT_GROUP entry"),
625 bfd_archive_filename (abfd)));
626 idx = 0;
627 }
628 dest->shdr = elf_elfsections (abfd)[idx];
629 }
630 }
631 }
632 }
633 }
634
635 if (num_group != (unsigned) -1)
636 {
637 unsigned int i;
638
639 for (i = 0; i < num_group; i++)
640 {
641 Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i];
642 Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents;
643 unsigned int n_elt = shdr->sh_size / 4;
644
645 /* Look through this group's sections to see if current
646 section is a member. */
647 while (--n_elt != 0)
648 if ((++idx)->shdr == hdr)
649 {
e0e8c97f 650 asection *s = NULL;
dbb410c3
AM		 651
652 /* We are a member of this group. Go looking through
653 other members to see if any others are linked via
654 next_in_group. */
655 idx = (Elf_Internal_Group *) shdr->contents;
656 n_elt = shdr->sh_size / 4;
657 while (--n_elt != 0)
658 if ((s = (++idx)->shdr->bfd_section) != NULL
945906ff 659 && elf_next_in_group (s) != NULL)
dbb410c3
AM		 660 break;
661 if (n_elt != 0)
662 {
dbb410c3
AM		 663 /* Snarf the group name from other member, and
664 insert current section in circular list. */
945906ff
AM		 665 elf_group_name (newsect) = elf_group_name (s);
666 elf_next_in_group (newsect) = elf_next_in_group (s);
667 elf_next_in_group (s) = newsect;
dbb410c3
AM		 668 }
669 else
670 {
dbb410c3
AM		 671 const char *gname;
672
b885599b
AM		 673 gname = group_signature (abfd, shdr);
674 if (gname == NULL)
b34976b6 675 return FALSE;
945906ff 676 elf_group_name (newsect) = gname;
dbb410c3
AM		 677
678 /* Start a circular list with one element. */
945906ff 679 elf_next_in_group (newsect) = newsect;
dbb410c3 680 }
b885599b 681
9dce4196
AM		 682 /* If the group section has been created, point to the
683 new member. */
dbb410c3 684 if (shdr->bfd_section != NULL)
945906ff 685 elf_next_in_group (shdr->bfd_section) = newsect;
b885599b 686
dbb410c3
AM		 687 i = num_group - 1;
688 break;
689 }
690 }
691 }
692
945906ff 693 if (elf_group_name (newsect) == NULL)
dbb410c3
AM		 694 {
695 (*_bfd_error_handler) (_("%s: no group info for section %s"),
696 bfd_archive_filename (abfd), newsect->name);
697 }
b34976b6 698 return TRUE;
dbb410c3
AM		 699}
700
b34976b6 701bfd_boolean
b885599b
AM		 702bfd_elf_discard_group (abfd, group)
703 bfd *abfd ATTRIBUTE_UNUSED;
704 asection *group;
705{
706 asection *first = elf_next_in_group (group);
707 asection *s = first;
708
709 while (s != NULL)
710 {
711 s->output_section = bfd_abs_section_ptr;
712 s = elf_next_in_group (s);
713 /* These lists are circular. */
714 if (s == first)
715 break;
716 }
b34976b6 717 return TRUE;
b885599b
AM		 718}
719
252b5132
RH		 720/* Make a BFD section from an ELF section. We store a pointer to the
721 BFD section in the bfd_section field of the header. */
722
b34976b6 723bfd_boolean
252b5132
RH		 724_bfd_elf_make_section_from_shdr (abfd, hdr, name)
725 bfd *abfd;
726 Elf_Internal_Shdr *hdr;
727 const char *name;
728{
729 asection *newsect;
730 flagword flags;
fa152c49 731 struct elf_backend_data *bed;
252b5132
RH		 732
733 if (hdr->bfd_section != NULL)
734 {
735 BFD_ASSERT (strcmp (name,
736 bfd_get_section_name (abfd, hdr->bfd_section)) == 0);
b34976b6 737 return TRUE;
252b5132
RH		 738 }
739
740 newsect = bfd_make_section_anyway (abfd, name);
741 if (newsect == NULL)
b34976b6 742 return FALSE;
252b5132
RH		 743
744 newsect->filepos = hdr->sh_offset;
745
746 if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr)
747 || ! bfd_set_section_size (abfd, newsect, hdr->sh_size)
748 || ! bfd_set_section_alignment (abfd, newsect,
dc810e39 749 bfd_log2 ((bfd_vma) hdr->sh_addralign)))
b34976b6 750 return FALSE;
252b5132
RH		 751
752 flags = SEC_NO_FLAGS;
753 if (hdr->sh_type != SHT_NOBITS)
754 flags |= SEC_HAS_CONTENTS;
dbb410c3
AM		 755 if (hdr->sh_type == SHT_GROUP)
756 flags |= SEC_GROUP | SEC_EXCLUDE;
252b5132
RH		 757 if ((hdr->sh_flags & SHF_ALLOC) != 0)
758 {
759 flags |= SEC_ALLOC;
760 if (hdr->sh_type != SHT_NOBITS)
761 flags |= SEC_LOAD;
762 }
763 if ((hdr->sh_flags & SHF_WRITE) == 0)
764 flags |= SEC_READONLY;
765 if ((hdr->sh_flags & SHF_EXECINSTR) != 0)
766 flags |= SEC_CODE;
767 else if ((flags & SEC_LOAD) != 0)
768 flags |= SEC_DATA;
f5fa8ca2
JJ		 769 if ((hdr->sh_flags & SHF_MERGE) != 0)
770 {
771 flags |= SEC_MERGE;
772 newsect->entsize = hdr->sh_entsize;
773 if ((hdr->sh_flags & SHF_STRINGS) != 0)
774 flags |= SEC_STRINGS;
775 }
dbb410c3
AM		 776 if (hdr->sh_flags & SHF_GROUP)
777 if (!setup_group (abfd, hdr, newsect))
b34976b6 778 return FALSE;
13ae64f3
JJ		 779 if ((hdr->sh_flags & SHF_TLS) != 0)
780 flags |= SEC_THREAD_LOCAL;
252b5132
RH		 781
782 /* The debugging sections appear to be recognized only by name, not
783 any sort of flag. */
7a6cc5fb 784 {
dbf48117 785 static const char *debug_sec_names [] =
7a6cc5fb
NC		 786 {
787 ".debug",
788 ".gnu.linkonce.wi.",
789 ".line",
790 ".stab"
791 };
792 int i;
793
e0e8c97f 794 for (i = ARRAY_SIZE (debug_sec_names); i--;)
7a6cc5fb
NC		 795 if (strncmp (name, debug_sec_names[i], strlen (debug_sec_names[i])) == 0)
796 break;
797
798 if (i >= 0)
799 flags |= SEC_DEBUGGING;
800 }
252b5132
RH		 801
802 /* As a GNU extension, if the name begins with .gnu.linkonce, we
803 only link a single copy of the section. This is used to support
804 g++. g++ will emit each template expansion in its own section.
805 The symbols will be defined as weak, so that multiple definitions
806 are permitted. The GNU linker extension is to actually discard
807 all but one of the sections. */
b885599b
AM		 808 if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0
809 && elf_next_in_group (newsect) == NULL)
252b5132
RH		 810 flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
811
fa152c49
JW		 812 bed = get_elf_backend_data (abfd);
813 if (bed->elf_backend_section_flags)
814 if (! bed->elf_backend_section_flags (&flags, hdr))
b34976b6 815 return FALSE;
fa152c49 816
252b5132 817 if (! bfd_set_section_flags (abfd, newsect, flags))
b34976b6 818 return FALSE;
252b5132
RH		 819
820 if ((flags & SEC_ALLOC) != 0)
821 {
822 Elf_Internal_Phdr *phdr;
823 unsigned int i;
824
825 /* Look through the phdrs to see if we need to adjust the lma.
826 If all the p_paddr fields are zero, we ignore them, since
827 some ELF linkers produce such output. */
828 phdr = elf_tdata (abfd)->phdr;
829 for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++)
830 {
831 if (phdr->p_paddr != 0)
832 break;
833 }
834 if (i < elf_elfheader (abfd)->e_phnum)
835 {
836 phdr = elf_tdata (abfd)->phdr;
837 for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++)
838 {
e0e8c97f
NC		 839 /* This section is part of this segment if its file
840 offset plus size lies within the segment's memory
841 span and, if the section is loaded, the extent of the
47d9a591 842 loaded data lies within the extent of the segment.
bf36db18
NC		 843
844 Note - we used to check the p_paddr field as well, and
845 refuse to set the LMA if it was 0. This is wrong
dba143ef 846 though, as a perfectly valid initialised segment can
bf36db18 847 have a p_paddr of zero. Some architectures, eg ARM,
dba143ef 848 place special significance on the address 0 and
bf36db18
NC		 849 executables need to be able to have a segment which
850 covers this address. */
252b5132 851 if (phdr->p_type == PT_LOAD
e0e8c97f
NC		 852 && (bfd_vma) hdr->sh_offset >= phdr->p_offset
853 && (hdr->sh_offset + hdr->sh_size
854 <= phdr->p_offset + phdr->p_memsz)
252b5132 855 && ((flags & SEC_LOAD) == 0
d7866f04
AM		 856 || (hdr->sh_offset + hdr->sh_size
857 <= phdr->p_offset + phdr->p_filesz)))
252b5132 858 {
dba143ef 859 if ((flags & SEC_LOAD) == 0)
d7866f04
AM		 860 newsect->lma = (phdr->p_paddr
861 + hdr->sh_addr - phdr->p_vaddr);
dba143ef
AM		 862 else
863 /* We used to use the same adjustment for SEC_LOAD
864 sections, but that doesn't work if the segment
865 is packed with code from multiple VMAs.
866 Instead we calculate the section LMA based on
867 the segment LMA. It is assumed that the
868 segment will contain sections with contiguous
869 LMAs, even if the VMAs are not. */
870 newsect->lma = (phdr->p_paddr
871 + hdr->sh_offset - phdr->p_offset);
d7866f04
AM		 872
873 /* With contiguous segments, we can't tell from file
874 offsets whether a section with zero size should
875 be placed at the end of one segment or the
876 beginning of the next. Decide based on vaddr. */
877 if (hdr->sh_addr >= phdr->p_vaddr
878 && (hdr->sh_addr + hdr->sh_size
879 <= phdr->p_vaddr + phdr->p_memsz))
880 break;
252b5132
RH		 881 }
882 }
883 }
884 }
885
886 hdr->bfd_section = newsect;
887 elf_section_data (newsect)->this_hdr = *hdr;
888
b34976b6 889 return TRUE;
252b5132
RH		 890}
891
892/*
893INTERNAL_FUNCTION
894 bfd_elf_find_section
895
896SYNOPSIS
897 struct elf_internal_shdr *bfd_elf_find_section (bfd *abfd, char *name);
898
899DESCRIPTION
900 Helper functions for GDB to locate the string tables.
901 Since BFD hides string tables from callers, GDB needs to use an
902 internal hook to find them. Sun's .stabstr, in particular,
903 isn't even pointed to by the .stab section, so ordinary
904 mechanisms wouldn't work to find it, even if we had some.
905*/
906
907struct elf_internal_shdr *
908bfd_elf_find_section (abfd, name)
c044fabd 909 bfd *abfd;
252b5132
RH		 910 char *name;
911{
912 Elf_Internal_Shdr **i_shdrp;
913 char *shstrtab;
914 unsigned int max;
915 unsigned int i;
916
917 i_shdrp = elf_elfsections (abfd);
918 if (i_shdrp != NULL)
919 {
9ad5cbcf
AM		 920 shstrtab = bfd_elf_get_str_section (abfd,
921 elf_elfheader (abfd)->e_shstrndx);
252b5132
RH		 922 if (shstrtab != NULL)
923 {
9ad5cbcf 924 max = elf_numsections (abfd);
252b5132
RH		 925 for (i = 1; i < max; i++)
926 if (!strcmp (&shstrtab[i_shdrp[i]->sh_name], name))
927 return i_shdrp[i];
928 }
929 }
930 return 0;
931}
932
933const char *const bfd_elf_section_type_names[] = {
934 "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB",
935 "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE",
936 "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM",
937};
938
1049f94e 939/* ELF relocs are against symbols. If we are producing relocatable
252b5132
RH		 940 output, and the reloc is against an external symbol, and nothing
941 has given us any additional addend, the resulting reloc will also
942 be against the same symbol. In such a case, we don't want to
943 change anything about the way the reloc is handled, since it will
944 all be done at final link time. Rather than put special case code
945 into bfd_perform_relocation, all the reloc types use this howto
946 function. It just short circuits the reloc if producing
1049f94e 947 relocatable output against an external symbol. */
252b5132 948
252b5132
RH		 949bfd_reloc_status_type
950bfd_elf_generic_reloc (abfd,
951 reloc_entry,
952 symbol,
953 data,
954 input_section,
955 output_bfd,
956 error_message)
7442e600 957 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 958 arelent *reloc_entry;
959 asymbol *symbol;
7442e600 960 PTR data ATTRIBUTE_UNUSED;
252b5132
RH		 961 asection *input_section;
962 bfd *output_bfd;
7442e600 963 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 964{
965 if (output_bfd != (bfd *) NULL
966 && (symbol->flags & BSF_SECTION_SYM) == 0
967 && (! reloc_entry->howto->partial_inplace
968 || reloc_entry->addend == 0))
969 {
970 reloc_entry->address += input_section->output_offset;
971 return bfd_reloc_ok;
972 }
973
974 return bfd_reloc_continue;
975}
976\f
d3c456e9
JJ		 977/* Make sure sec_info_type is cleared if sec_info is cleared too. */
978
979static void
980merge_sections_remove_hook (abfd, sec)
981 bfd *abfd ATTRIBUTE_UNUSED;
982 asection *sec;
983{
68bfbfcc
AM		 984 BFD_ASSERT (sec->sec_info_type == ELF_INFO_TYPE_MERGE);
985 sec->sec_info_type = ELF_INFO_TYPE_NONE;
d3c456e9
JJ		 986}
987
8550eb6e
JJ		 988/* Finish SHF_MERGE section merging. */
989
b34976b6 990bfd_boolean
8550eb6e
JJ		 991_bfd_elf_merge_sections (abfd, info)
992 bfd *abfd;
993 struct bfd_link_info *info;
994{
b0f35f36 995 if (!is_elf_hash_table (info))
b34976b6 996 return FALSE;
b0f35f36 997 if (elf_hash_table (info)->merge_info)
d3c456e9
JJ		 998 _bfd_merge_sections (abfd, elf_hash_table (info)->merge_info,
999 merge_sections_remove_hook);
b34976b6 1000 return TRUE;
8550eb6e 1001}
2d653fc7
AM		 1002
1003void
1004_bfd_elf_link_just_syms (sec, info)
1005 asection *sec;
1006 struct bfd_link_info *info;
1007{
1008 sec->output_section = bfd_abs_section_ptr;
1009 sec->output_offset = sec->vma;
1010 if (!is_elf_hash_table (info))
1011 return;
1012
68bfbfcc 1013 sec->sec_info_type = ELF_INFO_TYPE_JUST_SYMS;
2d653fc7 1014}
8550eb6e 1015\f
0ac4564e
L		 1016/* Copy the program header and other data from one object module to
1017 another. */
252b5132 1018
b34976b6 1019bfd_boolean
2d502050
L		 1020_bfd_elf_copy_private_bfd_data (ibfd, obfd)
1021 bfd *ibfd;
1022 bfd *obfd;
1023{
1024 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1025 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 1026 return TRUE;
2d502050
L		 1027
1028 BFD_ASSERT (!elf_flags_init (obfd)
1029 || (elf_elfheader (obfd)->e_flags
1030 == elf_elfheader (ibfd)->e_flags));
1031
0ac4564e 1032 elf_gp (obfd) = elf_gp (ibfd);
2d502050 1033 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
b34976b6
AM		 1034 elf_flags_init (obfd) = TRUE;
1035 return TRUE;
2d502050
L		 1036}
1037
f0b79d91
L		 1038/* Print out the program headers. */
1039
b34976b6 1040bfd_boolean
252b5132
RH		 1041_bfd_elf_print_private_bfd_data (abfd, farg)
1042 bfd *abfd;
1043 PTR farg;
1044{
1045 FILE *f = (FILE *) farg;
1046 Elf_Internal_Phdr *p;
1047 asection *s;
1048 bfd_byte *dynbuf = NULL;
1049
1050 p = elf_tdata (abfd)->phdr;
1051 if (p != NULL)
1052 {
1053 unsigned int i, c;
1054
1055 fprintf (f, _("\nProgram Header:\n"));
1056 c = elf_elfheader (abfd)->e_phnum;
1057 for (i = 0; i < c; i++, p++)
1058 {
dc810e39 1059 const char *pt;
252b5132
RH		 1060 char buf[20];
1061
1062 switch (p->p_type)
1063 {
dc810e39
AM		 1064 case PT_NULL: pt = "NULL"; break;
1065 case PT_LOAD: pt = "LOAD"; break;
1066 case PT_DYNAMIC: pt = "DYNAMIC"; break;
1067 case PT_INTERP: pt = "INTERP"; break;
1068 case PT_NOTE: pt = "NOTE"; break;
1069 case PT_SHLIB: pt = "SHLIB"; break;
1070 case PT_PHDR: pt = "PHDR"; break;
13ae64f3 1071 case PT_TLS: pt = "TLS"; break;
65765700 1072 case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break;
9ee5e499 1073 case PT_GNU_STACK: pt = "STACK"; break;
dc810e39 1074 default: sprintf (buf, "0x%lx", p->p_type); pt = buf; break;
252b5132 1075 }
dc810e39 1076 fprintf (f, "%8s off 0x", pt);
60b89a18 1077 bfd_fprintf_vma (abfd, f, p->p_offset);
252b5132 1078 fprintf (f, " vaddr 0x");
60b89a18 1079 bfd_fprintf_vma (abfd, f, p->p_vaddr);
252b5132 1080 fprintf (f, " paddr 0x");
60b89a18 1081 bfd_fprintf_vma (abfd, f, p->p_paddr);
252b5132
RH		 1082 fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align));
1083 fprintf (f, " filesz 0x");
60b89a18 1084 bfd_fprintf_vma (abfd, f, p->p_filesz);
252b5132 1085 fprintf (f, " memsz 0x");
60b89a18 1086 bfd_fprintf_vma (abfd, f, p->p_memsz);
252b5132
RH		 1087 fprintf (f, " flags %c%c%c",
1088 (p->p_flags & PF_R) != 0 ? 'r' : '-',
1089 (p->p_flags & PF_W) != 0 ? 'w' : '-',
1090 (p->p_flags & PF_X) != 0 ? 'x' : '-');
dc810e39
AM		 1091 if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0)
1092 fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X));
252b5132
RH		 1093 fprintf (f, "\n");
1094 }
1095 }
1096
1097 s = bfd_get_section_by_name (abfd, ".dynamic");
1098 if (s != NULL)
1099 {
1100 int elfsec;
dc810e39 1101 unsigned long shlink;
252b5132
RH		 1102 bfd_byte *extdyn, *extdynend;
1103 size_t extdynsize;
1104 void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
1105
1106 fprintf (f, _("\nDynamic Section:\n"));
1107
1108 dynbuf = (bfd_byte *) bfd_malloc (s->_raw_size);
1109 if (dynbuf == NULL)
1110 goto error_return;
1111 if (! bfd_get_section_contents (abfd, s, (PTR) dynbuf, (file_ptr) 0,
1112 s->_raw_size))
1113 goto error_return;
1114
1115 elfsec = _bfd_elf_section_from_bfd_section (abfd, s);
1116 if (elfsec == -1)
1117 goto error_return;
dc810e39 1118 shlink = elf_elfsections (abfd)[elfsec]->sh_link;
252b5132
RH		 1119
1120 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
1121 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
1122
1123 extdyn = dynbuf;
1124 extdynend = extdyn + s->_raw_size;
1125 for (; extdyn < extdynend; extdyn += extdynsize)
1126 {
1127 Elf_Internal_Dyn dyn;
1128 const char *name;
1129 char ab[20];
b34976b6 1130 bfd_boolean stringp;
252b5132
RH		 1131
1132 (*swap_dyn_in) (abfd, (PTR) extdyn, &dyn);
1133
1134 if (dyn.d_tag == DT_NULL)
1135 break;
1136
b34976b6 1137 stringp = FALSE;
252b5132
RH		 1138 switch (dyn.d_tag)
1139 {
1140 default:
1141 sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag);
1142 name = ab;
1143 break;
1144
b34976b6 1145 case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break;
252b5132
RH		 1146 case DT_PLTRELSZ: name = "PLTRELSZ"; break;
1147 case DT_PLTGOT: name = "PLTGOT"; break;
1148 case DT_HASH: name = "HASH"; break;
1149 case DT_STRTAB: name = "STRTAB"; break;
1150 case DT_SYMTAB: name = "SYMTAB"; break;
1151 case DT_RELA: name = "RELA"; break;
1152 case DT_RELASZ: name = "RELASZ"; break;
1153 case DT_RELAENT: name = "RELAENT"; break;
1154 case DT_STRSZ: name = "STRSZ"; break;
1155 case DT_SYMENT: name = "SYMENT"; break;
1156 case DT_INIT: name = "INIT"; break;
1157 case DT_FINI: name = "FINI"; break;
b34976b6
AM		 1158 case DT_SONAME: name = "SONAME"; stringp = TRUE; break;
1159 case DT_RPATH: name = "RPATH"; stringp = TRUE; break;
252b5132
RH		 1160 case DT_SYMBOLIC: name = "SYMBOLIC"; break;
1161 case DT_REL: name = "REL"; break;
1162 case DT_RELSZ: name = "RELSZ"; break;
1163 case DT_RELENT: name = "RELENT"; break;
1164 case DT_PLTREL: name = "PLTREL"; break;
1165 case DT_DEBUG: name = "DEBUG"; break;
1166 case DT_TEXTREL: name = "TEXTREL"; break;
1167 case DT_JMPREL: name = "JMPREL"; break;
94558834
L		 1168 case DT_BIND_NOW: name = "BIND_NOW"; break;
1169 case DT_INIT_ARRAY: name = "INIT_ARRAY"; break;
1170 case DT_FINI_ARRAY: name = "FINI_ARRAY"; break;
1171 case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break;
1172 case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break;
b34976b6 1173 case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break;
94558834
L		 1174 case DT_FLAGS: name = "FLAGS"; break;
1175 case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break;
1176 case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break;
d48188b9 1177 case DT_CHECKSUM: name = "CHECKSUM"; break;
94558834
L		 1178 case DT_PLTPADSZ: name = "PLTPADSZ"; break;
1179 case DT_MOVEENT: name = "MOVEENT"; break;
1180 case DT_MOVESZ: name = "MOVESZ"; break;
1181 case DT_FEATURE: name = "FEATURE"; break;
1182 case DT_POSFLAG_1: name = "POSFLAG_1"; break;
1183 case DT_SYMINSZ: name = "SYMINSZ"; break;
1184 case DT_SYMINENT: name = "SYMINENT"; break;
b34976b6
AM		 1185 case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break;
1186 case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break;
1187 case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break;
94558834
L		 1188 case DT_PLTPAD: name = "PLTPAD"; break;
1189 case DT_MOVETAB: name = "MOVETAB"; break;
1190 case DT_SYMINFO: name = "SYMINFO"; break;
1191 case DT_RELACOUNT: name = "RELACOUNT"; break;
1192 case DT_RELCOUNT: name = "RELCOUNT"; break;
1193 case DT_FLAGS_1: name = "FLAGS_1"; break;
252b5132
RH		 1194 case DT_VERSYM: name = "VERSYM"; break;
1195 case DT_VERDEF: name = "VERDEF"; break;
1196 case DT_VERDEFNUM: name = "VERDEFNUM"; break;
1197 case DT_VERNEED: name = "VERNEED"; break;
1198 case DT_VERNEEDNUM: name = "VERNEEDNUM"; break;
b34976b6 1199 case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break;
94558834 1200 case DT_USED: name = "USED"; break;
b34976b6 1201 case DT_FILTER: name = "FILTER"; stringp = TRUE; break;
252b5132
RH		 1202 }
1203
1204 fprintf (f, " %-11s ", name);
1205 if (! stringp)
1206 fprintf (f, "0x%lx", (unsigned long) dyn.d_un.d_val);
1207 else
1208 {
1209 const char *string;
dc810e39 1210 unsigned int tagv = dyn.d_un.d_val;
252b5132 1211
dc810e39 1212 string = bfd_elf_string_from_elf_section (abfd, shlink, tagv);
252b5132
RH		 1213 if (string == NULL)
1214 goto error_return;
1215 fprintf (f, "%s", string);
1216 }
1217 fprintf (f, "\n");
1218 }
1219
1220 free (dynbuf);
1221 dynbuf = NULL;
1222 }
1223
1224 if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL)
1225 || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL))
1226 {
1227 if (! _bfd_elf_slurp_version_tables (abfd))
b34976b6 1228 return FALSE;
252b5132
RH		 1229 }
1230
1231 if (elf_dynverdef (abfd) != 0)
1232 {
1233 Elf_Internal_Verdef *t;
1234
1235 fprintf (f, _("\nVersion definitions:\n"));
1236 for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef)
1237 {
1238 fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx,
1239 t->vd_flags, t->vd_hash, t->vd_nodename);
1240 if (t->vd_auxptr->vda_nextptr != NULL)
1241 {
1242 Elf_Internal_Verdaux *a;
1243
1244 fprintf (f, "\t");
1245 for (a = t->vd_auxptr->vda_nextptr;
1246 a != NULL;
1247 a = a->vda_nextptr)
1248 fprintf (f, "%s ", a->vda_nodename);
1249 fprintf (f, "\n");
1250 }
1251 }
1252 }
1253
1254 if (elf_dynverref (abfd) != 0)
1255 {
1256 Elf_Internal_Verneed *t;
1257
1258 fprintf (f, _("\nVersion References:\n"));
1259 for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref)
1260 {
1261 Elf_Internal_Vernaux *a;
1262
1263 fprintf (f, _(" required from %s:\n"), t->vn_filename);
1264 for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
1265 fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash,
1266 a->vna_flags, a->vna_other, a->vna_nodename);
1267 }
1268 }
1269
b34976b6 1270 return TRUE;
252b5132
RH		 1271
1272 error_return:
1273 if (dynbuf != NULL)
1274 free (dynbuf);
b34976b6 1275 return FALSE;
252b5132
RH		 1276}
1277
1278/* Display ELF-specific fields of a symbol. */
1279
1280void
1281bfd_elf_print_symbol (abfd, filep, symbol, how)
1282 bfd *abfd;
1283 PTR filep;
1284 asymbol *symbol;
1285 bfd_print_symbol_type how;
1286{
1287 FILE *file = (FILE *) filep;
1288 switch (how)
1289 {
1290 case bfd_print_symbol_name:
1291 fprintf (file, "%s", symbol->name);
1292 break;
1293 case bfd_print_symbol_more:
1294 fprintf (file, "elf ");
60b89a18 1295 bfd_fprintf_vma (abfd, file, symbol->value);
252b5132
RH		 1296 fprintf (file, " %lx", (long) symbol->flags);
1297 break;
1298 case bfd_print_symbol_all:
1299 {
4e8a9624
AM		 1300 const char *section_name;
1301 const char *name = NULL;
587ff49e 1302 struct elf_backend_data *bed;
7a13edea 1303 unsigned char st_other;
dbb410c3 1304 bfd_vma val;
c044fabd 1305
252b5132 1306 section_name = symbol->section ? symbol->section->name : "(*none*)";
587ff49e
RH		 1307
1308 bed = get_elf_backend_data (abfd);
1309 if (bed->elf_backend_print_symbol_all)
c044fabd 1310 name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol);
587ff49e
RH		 1311
1312 if (name == NULL)
1313 {
7ee38065 1314 name = symbol->name;
60b89a18 1315 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
587ff49e
RH		 1316 }
1317
252b5132
RH		 1318 fprintf (file, " %s\t", section_name);
1319 /* Print the "other" value for a symbol. For common symbols,
1320 we've already printed the size; now print the alignment.
1321 For other symbols, we have no specified alignment, and
1322 we've printed the address; now print the size. */
dbb410c3
AM		 1323 if (bfd_is_com_section (symbol->section))
1324 val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value;
1325 else
1326 val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size;
1327 bfd_fprintf_vma (abfd, file, val);
252b5132
RH		 1328
1329 /* If we have version information, print it. */
1330 if (elf_tdata (abfd)->dynversym_section != 0
1331 && (elf_tdata (abfd)->dynverdef_section != 0
1332 || elf_tdata (abfd)->dynverref_section != 0))
1333 {
1334 unsigned int vernum;
1335 const char *version_string;
1336
1337 vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION;
1338
1339 if (vernum == 0)
1340 version_string = "";
1341 else if (vernum == 1)
1342 version_string = "Base";
1343 else if (vernum <= elf_tdata (abfd)->cverdefs)
1344 version_string =
1345 elf_tdata (abfd)->verdef[vernum - 1].vd_nodename;
1346 else
1347 {
1348 Elf_Internal_Verneed *t;
1349
1350 version_string = "";
1351 for (t = elf_tdata (abfd)->verref;
1352 t != NULL;
1353 t = t->vn_nextref)
1354 {
1355 Elf_Internal_Vernaux *a;
1356
1357 for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
1358 {
1359 if (a->vna_other == vernum)
1360 {
1361 version_string = a->vna_nodename;
1362 break;
1363 }
1364 }
1365 }
1366 }
1367
1368 if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0)
1369 fprintf (file, " %-11s", version_string);
1370 else
1371 {
1372 int i;
1373
1374 fprintf (file, " (%s)", version_string);
1375 for (i = 10 - strlen (version_string); i > 0; --i)
1376 putc (' ', file);
1377 }
1378 }
1379
1380 /* If the st_other field is not zero, print it. */
7a13edea 1381 st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other;
c044fabd 1382
7a13edea
NC		 1383 switch (st_other)
1384 {
1385 case 0: break;
1386 case STV_INTERNAL: fprintf (file, " .internal"); break;
1387 case STV_HIDDEN: fprintf (file, " .hidden"); break;
1388 case STV_PROTECTED: fprintf (file, " .protected"); break;
1389 default:
1390 /* Some other non-defined flags are also present, so print
1391 everything hex. */
1392 fprintf (file, " 0x%02x", (unsigned int) st_other);
1393 }
252b5132 1394
587ff49e 1395 fprintf (file, " %s", name);
252b5132
RH		 1396 }
1397 break;
1398 }
1399}
1400\f
1401/* Create an entry in an ELF linker hash table. */
1402
1403struct bfd_hash_entry *
1404_bfd_elf_link_hash_newfunc (entry, table, string)
1405 struct bfd_hash_entry *entry;
1406 struct bfd_hash_table *table;
1407 const char *string;
1408{
252b5132
RH		 1409 /* Allocate the structure if it has not already been allocated by a
1410 subclass. */
51b64d56
AM		 1411 if (entry == NULL)
1412 {
1413 entry = bfd_hash_allocate (table, sizeof (struct elf_link_hash_entry));
1414 if (entry == NULL)
1415 return entry;
1416 }
252b5132
RH		 1417
1418 /* Call the allocation method of the superclass. */
51b64d56
AM		 1419 entry = _bfd_link_hash_newfunc (entry, table, string);
1420 if (entry != NULL)
252b5132 1421 {
51b64d56
AM		 1422 struct elf_link_hash_entry *ret = (struct elf_link_hash_entry *) entry;
1423 struct elf_link_hash_table *htab = (struct elf_link_hash_table *) table;
1424
252b5132
RH		 1425 /* Set local fields. */
1426 ret->indx = -1;
252b5132
RH		 1427 ret->dynindx = -1;
1428 ret->dynstr_index = 0;
73722af0 1429 ret->elf_hash_value = 0;
252b5132 1430 ret->weakdef = NULL;
51b64d56 1431 ret->linker_section_pointer = NULL;
252b5132 1432 ret->verinfo.verdef = NULL;
252b5132 1433 ret->vtable_entries_size = 0;
73722af0 1434 ret->vtable_entries_used = NULL;
252b5132 1435 ret->vtable_parent = NULL;
5cab59f6
AM		 1436 ret->got = htab->init_refcount;
1437 ret->plt = htab->init_refcount;
73722af0 1438 ret->size = 0;
252b5132
RH		 1439 ret->type = STT_NOTYPE;
1440 ret->other = 0;
1441 /* Assume that we have been called by a non-ELF symbol reader.
1442 This flag is then reset by the code which reads an ELF input
1443 file. This ensures that a symbol created by a non-ELF symbol
1444 reader will have the flag set correctly. */
1445 ret->elf_link_hash_flags = ELF_LINK_NON_ELF;
1446 }
1447
51b64d56 1448 return entry;
252b5132
RH		 1449}
1450
2920b85c 1451/* Copy data from an indirect symbol to its direct symbol, hiding the
0a991dfe 1452 old indirect symbol. Also used for copying flags to a weakdef. */
2920b85c 1453
c61b8717 1454void
b48fa14c
AM		 1455_bfd_elf_link_hash_copy_indirect (bed, dir, ind)
1456 struct elf_backend_data *bed;
2920b85c
RH		 1457 struct elf_link_hash_entry *dir, *ind;
1458{
3c3e9281 1459 bfd_signed_vma tmp;
b48fa14c 1460 bfd_signed_vma lowest_valid = bed->can_refcount;
3c3e9281 1461
2920b85c
RH		 1462 /* Copy down any references that we may have already seen to the
1463 symbol which just became indirect. */
1464
1465 dir->elf_link_hash_flags |=
1466 (ind->elf_link_hash_flags
1467 & (ELF_LINK_HASH_REF_DYNAMIC
1468 | ELF_LINK_HASH_REF_REGULAR
1469 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
1470 | ELF_LINK_NON_GOT_REF));
1471
1e370bd2 1472 if (ind->root.type != bfd_link_hash_indirect)
0a991dfe
AM		 1473 return;
1474
51b64d56 1475 /* Copy over the global and procedure linkage table refcount entries.
2920b85c 1476 These may have been already set up by a check_relocs routine. */
3c3e9281 1477 tmp = dir->got.refcount;
b48fa14c 1478 if (tmp < lowest_valid)
2920b85c 1479 {
51b64d56 1480 dir->got.refcount = ind->got.refcount;
3c3e9281 1481 ind->got.refcount = tmp;
2920b85c 1482 }
3c3e9281 1483 else
b48fa14c 1484 BFD_ASSERT (ind->got.refcount < lowest_valid);
2920b85c 1485
3c3e9281 1486 tmp = dir->plt.refcount;
b48fa14c 1487 if (tmp < lowest_valid)
2920b85c 1488 {
51b64d56 1489 dir->plt.refcount = ind->plt.refcount;
3c3e9281 1490 ind->plt.refcount = tmp;
2920b85c 1491 }
3c3e9281 1492 else
b48fa14c 1493 BFD_ASSERT (ind->plt.refcount < lowest_valid);
2920b85c
RH		 1494
1495 if (dir->dynindx == -1)
1496 {
1497 dir->dynindx = ind->dynindx;
1498 dir->dynstr_index = ind->dynstr_index;
1499 ind->dynindx = -1;
1500 ind->dynstr_index = 0;
1501 }
3c3e9281
AM		 1502 else
1503 BFD_ASSERT (ind->dynindx == -1);
2920b85c
RH		 1504}
1505
c61b8717 1506void
e5094212
AM		 1507_bfd_elf_link_hash_hide_symbol (info, h, force_local)
1508 struct bfd_link_info *info;
2920b85c 1509 struct elf_link_hash_entry *h;
b34976b6 1510 bfd_boolean force_local;
2920b85c 1511{
5cab59f6 1512 h->plt = elf_hash_table (info)->init_offset;
e5094212
AM		 1513 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
1514 if (force_local)
1515 {
1516 h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
1517 if (h->dynindx != -1)
1518 {
1519 h->dynindx = -1;
1520 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1521 h->dynstr_index);
1522 }
1523 }
2920b85c
RH		 1524}
1525
252b5132
RH		 1526/* Initialize an ELF linker hash table. */
1527
b34976b6 1528bfd_boolean
252b5132
RH		 1529_bfd_elf_link_hash_table_init (table, abfd, newfunc)
1530 struct elf_link_hash_table *table;
1531 bfd *abfd;
b34976b6
AM		 1532 struct bfd_hash_entry *(*newfunc)
1533 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
1534 const char *));
252b5132 1535{
b34976b6 1536 bfd_boolean ret;
8ea2e4bd 1537
b34976b6 1538 table->dynamic_sections_created = FALSE;
252b5132 1539 table->dynobj = NULL;
963f13ec
AO		 1540 /* Make sure can_refcount is extended to the width and signedness of
1541 init_refcount before we subtract one from it. */
5cab59f6
AM		 1542 table->init_refcount.refcount = get_elf_backend_data (abfd)->can_refcount;
1543 table->init_refcount.refcount -= 1;
1544 table->init_offset.offset = -(bfd_vma) 1;
252b5132
RH		 1545 /* The first dynamic symbol is a dummy. */
1546 table->dynsymcount = 1;
1547 table->dynstr = NULL;
1548 table->bucketcount = 0;
1549 table->needed = NULL;
1550 table->hgot = NULL;
1551 table->stab_info = NULL;
f5fa8ca2 1552 table->merge_info = NULL;
73722af0 1553 memset (&table->eh_info, 0, sizeof (table->eh_info));
1ae00f9d 1554 table->dynlocal = NULL;
73722af0
AM		 1555 table->runpath = NULL;
1556 table->tls_segment = NULL;
1557 table->loaded = NULL;
1558
1559 ret = _bfd_link_hash_table_init (&table->root, abfd, newfunc);
8ea2e4bd
NC		 1560 table->root.type = bfd_link_elf_hash_table;
1561
1562 return ret;
252b5132
RH		 1563}
1564
1565/* Create an ELF linker hash table. */
1566
1567struct bfd_link_hash_table *
1568_bfd_elf_link_hash_table_create (abfd)
1569 bfd *abfd;
1570{
1571 struct elf_link_hash_table *ret;
dc810e39 1572 bfd_size_type amt = sizeof (struct elf_link_hash_table);
252b5132 1573
e2d34d7d 1574 ret = (struct elf_link_hash_table *) bfd_malloc (amt);
252b5132
RH		 1575 if (ret == (struct elf_link_hash_table *) NULL)
1576 return NULL;
1577
1578 if (! _bfd_elf_link_hash_table_init (ret, abfd, _bfd_elf_link_hash_newfunc))
1579 {
e2d34d7d 1580 free (ret);
252b5132
RH		 1581 return NULL;
1582 }
1583
1584 return &ret->root;
1585}
1586
1587/* This is a hook for the ELF emulation code in the generic linker to
1588 tell the backend linker what file name to use for the DT_NEEDED
1589 entry for a dynamic object. The generic linker passes name as an
1590 empty string to indicate that no DT_NEEDED entry should be made. */
1591
1592void
1593bfd_elf_set_dt_needed_name (abfd, name)
1594 bfd *abfd;
1595 const char *name;
1596{
1597 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1598 && bfd_get_format (abfd) == bfd_object)
1599 elf_dt_name (abfd) = name;
1600}
1601
74816898
L		 1602void
1603bfd_elf_set_dt_needed_soname (abfd, name)
1604 bfd *abfd;
1605 const char *name;
1606{
1607 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1608 && bfd_get_format (abfd) == bfd_object)
1609 elf_dt_soname (abfd) = name;
1610}
1611
252b5132
RH		 1612/* Get the list of DT_NEEDED entries for a link. This is a hook for
1613 the linker ELF emulation code. */
1614
1615struct bfd_link_needed_list *
1616bfd_elf_get_needed_list (abfd, info)
7442e600 1617 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 1618 struct bfd_link_info *info;
1619{
385a4c14 1620 if (! is_elf_hash_table (info))
252b5132
RH		 1621 return NULL;
1622 return elf_hash_table (info)->needed;
1623}
1624
a963dc6a
L		 1625/* Get the list of DT_RPATH/DT_RUNPATH entries for a link. This is a
1626 hook for the linker ELF emulation code. */
1627
1628struct bfd_link_needed_list *
1629bfd_elf_get_runpath_list (abfd, info)
1630 bfd *abfd ATTRIBUTE_UNUSED;
1631 struct bfd_link_info *info;
1632{
385a4c14 1633 if (! is_elf_hash_table (info))
a963dc6a
L		 1634 return NULL;
1635 return elf_hash_table (info)->runpath;
1636}
1637
252b5132
RH		 1638/* Get the name actually used for a dynamic object for a link. This
1639 is the SONAME entry if there is one. Otherwise, it is the string
1640 passed to bfd_elf_set_dt_needed_name, or it is the filename. */
1641
1642const char *
1643bfd_elf_get_dt_soname (abfd)
1644 bfd *abfd;
1645{
1646 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1647 && bfd_get_format (abfd) == bfd_object)
1648 return elf_dt_name (abfd);
1649 return NULL;
1650}
1651
1652/* Get the list of DT_NEEDED entries from a BFD. This is a hook for
1653 the ELF linker emulation code. */
1654
b34976b6 1655bfd_boolean
252b5132
RH		 1656bfd_elf_get_bfd_needed_list (abfd, pneeded)
1657 bfd *abfd;
1658 struct bfd_link_needed_list **pneeded;
1659{
1660 asection *s;
1661 bfd_byte *dynbuf = NULL;
1662 int elfsec;
dc810e39 1663 unsigned long shlink;
252b5132
RH		 1664 bfd_byte *extdyn, *extdynend;
1665 size_t extdynsize;
1666 void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
1667
1668 *pneeded = NULL;
1669
1670 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour
1671 || bfd_get_format (abfd) != bfd_object)
b34976b6 1672 return TRUE;
252b5132
RH		 1673
1674 s = bfd_get_section_by_name (abfd, ".dynamic");
1675 if (s == NULL || s->_raw_size == 0)
b34976b6 1676 return TRUE;
252b5132
RH		 1677
1678 dynbuf = (bfd_byte *) bfd_malloc (s->_raw_size);
1679 if (dynbuf == NULL)
1680 goto error_return;
1681
1682 if (! bfd_get_section_contents (abfd, s, (PTR) dynbuf, (file_ptr) 0,
1683 s->_raw_size))
1684 goto error_return;
1685
1686 elfsec = _bfd_elf_section_from_bfd_section (abfd, s);
1687 if (elfsec == -1)
1688 goto error_return;
1689
dc810e39 1690 shlink = elf_elfsections (abfd)[elfsec]->sh_link;
252b5132
RH		 1691
1692 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
1693 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
1694
1695 extdyn = dynbuf;
1696 extdynend = extdyn + s->_raw_size;
1697 for (; extdyn < extdynend; extdyn += extdynsize)
1698 {
1699 Elf_Internal_Dyn dyn;
1700
1701 (*swap_dyn_in) (abfd, (PTR) extdyn, &dyn);
1702
1703 if (dyn.d_tag == DT_NULL)
1704 break;
1705
1706 if (dyn.d_tag == DT_NEEDED)
1707 {
1708 const char *string;
1709 struct bfd_link_needed_list *l;
dc810e39
AM		 1710 unsigned int tagv = dyn.d_un.d_val;
1711 bfd_size_type amt;
252b5132 1712
dc810e39 1713 string = bfd_elf_string_from_elf_section (abfd, shlink, tagv);
252b5132
RH		 1714 if (string == NULL)
1715 goto error_return;
1716
dc810e39
AM		 1717 amt = sizeof *l;
1718 l = (struct bfd_link_needed_list *) bfd_alloc (abfd, amt);
252b5132
RH		 1719 if (l == NULL)
1720 goto error_return;
1721
1722 l->by = abfd;
1723 l->name = string;
1724 l->next = *pneeded;
1725 *pneeded = l;
1726 }
1727 }
1728
1729 free (dynbuf);
1730
b34976b6 1731 return TRUE;
252b5132
RH		 1732
1733 error_return:
1734 if (dynbuf != NULL)
1735 free (dynbuf);
b34976b6 1736 return FALSE;
252b5132
RH		 1737}
1738\f
1739/* Allocate an ELF string table--force the first byte to be zero. */
1740
1741struct bfd_strtab_hash *
1742_bfd_elf_stringtab_init ()
1743{
1744 struct bfd_strtab_hash *ret;
1745
1746 ret = _bfd_stringtab_init ();
1747 if (ret != NULL)
1748 {
1749 bfd_size_type loc;
1750
b34976b6 1751 loc = _bfd_stringtab_add (ret, "", TRUE, FALSE);
252b5132
RH		 1752 BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1);
1753 if (loc == (bfd_size_type) -1)
1754 {
1755 _bfd_stringtab_free (ret);
1756 ret = NULL;
1757 }
1758 }
1759 return ret;
1760}
1761\f
1762/* ELF .o/exec file reading */
1763
c044fabd 1764/* Create a new bfd section from an ELF section header. */
252b5132 1765
b34976b6 1766bfd_boolean
252b5132
RH		 1767bfd_section_from_shdr (abfd, shindex)
1768 bfd *abfd;
1769 unsigned int shindex;
1770{
1771 Elf_Internal_Shdr *hdr = elf_elfsections (abfd)[shindex];
1772 Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd);
1773 struct elf_backend_data *bed = get_elf_backend_data (abfd);
90937f86 1774 const char *name;
252b5132
RH		 1775
1776 name = elf_string_from_elf_strtab (abfd, hdr->sh_name);
1777
1778 switch (hdr->sh_type)
1779 {
1780 case SHT_NULL:
1781 /* Inactive section. Throw it away. */
b34976b6 1782 return TRUE;
252b5132
RH		 1783
1784 case SHT_PROGBITS: /* Normal section with contents. */
252b5132
RH		 1785 case SHT_NOBITS: /* .bss section. */
1786 case SHT_HASH: /* .hash section. */
1787 case SHT_NOTE: /* .note section. */
25e27870
L		 1788 case SHT_INIT_ARRAY: /* .init_array section. */
1789 case SHT_FINI_ARRAY: /* .fini_array section. */
1790 case SHT_PREINIT_ARRAY: /* .preinit_array section. */
252b5132
RH		 1791 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
1792
797fc050
AM		 1793 case SHT_DYNAMIC: /* Dynamic linking information. */
1794 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
b34976b6 1795 return FALSE;
797fc050
AM		 1796 if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB)
1797 {
1798 Elf_Internal_Shdr *dynsymhdr;
1799
1800 /* The shared libraries distributed with hpux11 have a bogus
1801 sh_link field for the ".dynamic" section. Find the
1802 string table for the ".dynsym" section instead. */
1803 if (elf_dynsymtab (abfd) != 0)
1804 {
1805 dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)];
1806 hdr->sh_link = dynsymhdr->sh_link;
1807 }
1808 else
1809 {
1810 unsigned int i, num_sec;
1811
1812 num_sec = elf_numsections (abfd);
1813 for (i = 1; i < num_sec; i++)
1814 {
1815 dynsymhdr = elf_elfsections (abfd)[i];
1816 if (dynsymhdr->sh_type == SHT_DYNSYM)
1817 {
1818 hdr->sh_link = dynsymhdr->sh_link;
1819 break;
1820 }
1821 }
1822 }
1823 }
1824 break;
1825
252b5132
RH		 1826 case SHT_SYMTAB: /* A symbol table */
1827 if (elf_onesymtab (abfd) == shindex)
b34976b6 1828 return TRUE;
252b5132
RH		 1829
1830 BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym);
1831 BFD_ASSERT (elf_onesymtab (abfd) == 0);
1832 elf_onesymtab (abfd) = shindex;
1833 elf_tdata (abfd)->symtab_hdr = *hdr;
1834 elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr;
1835 abfd->flags |= HAS_SYMS;
1836
1837 /* Sometimes a shared object will map in the symbol table. If
1838 SHF_ALLOC is set, and this is a shared object, then we also
1839 treat this section as a BFD section. We can not base the
1840 decision purely on SHF_ALLOC, because that flag is sometimes
1049f94e 1841 set in a relocatable object file, which would confuse the
252b5132
RH		 1842 linker. */
1843 if ((hdr->sh_flags & SHF_ALLOC) != 0
1844 && (abfd->flags & DYNAMIC) != 0
1845 && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
b34976b6 1846 return FALSE;
252b5132 1847
b34976b6 1848 return TRUE;
252b5132
RH		 1849
1850 case SHT_DYNSYM: /* A dynamic symbol table */
1851 if (elf_dynsymtab (abfd) == shindex)
b34976b6 1852 return TRUE;
252b5132
RH		 1853
1854 BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym);
1855 BFD_ASSERT (elf_dynsymtab (abfd) == 0);
1856 elf_dynsymtab (abfd) = shindex;
1857 elf_tdata (abfd)->dynsymtab_hdr = *hdr;
1858 elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr;
1859 abfd->flags |= HAS_SYMS;
1860
1861 /* Besides being a symbol table, we also treat this as a regular
1862 section, so that objcopy can handle it. */
1863 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
1864
9ad5cbcf
AM		 1865 case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */
1866 if (elf_symtab_shndx (abfd) == shindex)
b34976b6 1867 return TRUE;
9ad5cbcf
AM		 1868
1869 /* Get the associated symbol table. */
1870 if (! bfd_section_from_shdr (abfd, hdr->sh_link)
1871 || hdr->sh_link != elf_onesymtab (abfd))
b34976b6 1872 return FALSE;
9ad5cbcf
AM		 1873
1874 elf_symtab_shndx (abfd) = shindex;
1875 elf_tdata (abfd)->symtab_shndx_hdr = *hdr;
1876 elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr;
b34976b6 1877 return TRUE;
9ad5cbcf 1878
252b5132
RH		 1879 case SHT_STRTAB: /* A string table */
1880 if (hdr->bfd_section != NULL)
b34976b6 1881 return TRUE;
252b5132
RH		 1882 if (ehdr->e_shstrndx == shindex)
1883 {
1884 elf_tdata (abfd)->shstrtab_hdr = *hdr;
1885 elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr;
b34976b6 1886 return TRUE;
252b5132
RH		 1887 }
1888 {
9ad5cbcf 1889 unsigned int i, num_sec;
252b5132 1890
9ad5cbcf
AM		 1891 num_sec = elf_numsections (abfd);
1892 for (i = 1; i < num_sec; i++)
252b5132
RH		 1893 {
1894 Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i];
1895 if (hdr2->sh_link == shindex)
1896 {
1897 if (! bfd_section_from_shdr (abfd, i))
b34976b6 1898 return FALSE;
252b5132
RH		 1899 if (elf_onesymtab (abfd) == i)
1900 {
1901 elf_tdata (abfd)->strtab_hdr = *hdr;
1902 elf_elfsections (abfd)[shindex] =
1903 &elf_tdata (abfd)->strtab_hdr;
b34976b6 1904 return TRUE;
252b5132
RH		 1905 }
1906 if (elf_dynsymtab (abfd) == i)
1907 {
1908 elf_tdata (abfd)->dynstrtab_hdr = *hdr;
1909 elf_elfsections (abfd)[shindex] = hdr =
1910 &elf_tdata (abfd)->dynstrtab_hdr;
1911 /* We also treat this as a regular section, so
1912 that objcopy can handle it. */
1913 break;
1914 }
1915#if 0 /* Not handling other string tables specially right now. */
1916 hdr2 = elf_elfsections (abfd)[i]; /* in case it moved */
1917 /* We have a strtab for some random other section. */
1918 newsect = (asection *) hdr2->bfd_section;
1919 if (!newsect)
1920 break;
1921 hdr->bfd_section = newsect;
1922 hdr2 = &elf_section_data (newsect)->str_hdr;
1923 *hdr2 = *hdr;
1924 elf_elfsections (abfd)[shindex] = hdr2;
1925#endif
1926 }
1927 }
1928 }
1929
1930 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
1931
1932 case SHT_REL:
1933 case SHT_RELA:
1934 /* *These* do a lot of work -- but build no sections! */
1935 {
1936 asection *target_sect;
1937 Elf_Internal_Shdr *hdr2;
9ad5cbcf 1938 unsigned int num_sec = elf_numsections (abfd);
252b5132 1939
03ae5f59 1940 /* Check for a bogus link to avoid crashing. */
9ad5cbcf
AM		 1941 if ((hdr->sh_link >= SHN_LORESERVE && hdr->sh_link <= SHN_HIRESERVE)
1942 || hdr->sh_link >= num_sec)
03ae5f59
ILT		 1943 {
1944 ((*_bfd_error_handler)
1945 (_("%s: invalid link %lu for reloc section %s (index %u)"),
8f615d07 1946 bfd_archive_filename (abfd), hdr->sh_link, name, shindex));
03ae5f59
ILT		 1947 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
1948 }
1949
252b5132
RH		 1950 /* For some incomprehensible reason Oracle distributes
1951 libraries for Solaris in which some of the objects have
1952 bogus sh_link fields. It would be nice if we could just
1953 reject them, but, unfortunately, some people need to use
1954 them. We scan through the section headers; if we find only
1955 one suitable symbol table, we clobber the sh_link to point
1956 to it. I hope this doesn't break anything. */
1957 if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB
1958 && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM)
1959 {
9ad5cbcf 1960 unsigned int scan;
252b5132
RH		 1961 int found;
1962
1963 found = 0;
9ad5cbcf 1964 for (scan = 1; scan < num_sec; scan++)
252b5132
RH		 1965 {
1966 if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB
1967 || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM)
1968 {
1969 if (found != 0)
1970 {
1971 found = 0;
1972 break;
1973 }
1974 found = scan;
1975 }
1976 }
1977 if (found != 0)
1978 hdr->sh_link = found;
1979 }
1980
1981 /* Get the symbol table. */
1982 if (elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB
1983 && ! bfd_section_from_shdr (abfd, hdr->sh_link))
b34976b6 1984 return FALSE;
252b5132
RH		 1985
1986 /* If this reloc section does not use the main symbol table we
1987 don't treat it as a reloc section. BFD can't adequately
1988 represent such a section, so at least for now, we don't
c044fabd 1989 try. We just present it as a normal section. We also
60bcf0fa 1990 can't use it as a reloc section if it points to the null
c044fabd 1991 section. */
60bcf0fa 1992 if (hdr->sh_link != elf_onesymtab (abfd) || hdr->sh_info == SHN_UNDEF)
252b5132
RH		 1993 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
1994
1995 if (! bfd_section_from_shdr (abfd, hdr->sh_info))
b34976b6 1996 return FALSE;
252b5132
RH		 1997 target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info);
1998 if (target_sect == NULL)
b34976b6 1999 return FALSE;
252b5132
RH		 2000
2001 if ((target_sect->flags & SEC_RELOC) == 0
2002 || target_sect->reloc_count == 0)
2003 hdr2 = &elf_section_data (target_sect)->rel_hdr;
2004 else
2005 {
dc810e39 2006 bfd_size_type amt;
252b5132 2007 BFD_ASSERT (elf_section_data (target_sect)->rel_hdr2 == NULL);
dc810e39
AM		 2008 amt = sizeof (*hdr2);
2009 hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt);
252b5132
RH		 2010 elf_section_data (target_sect)->rel_hdr2 = hdr2;
2011 }
2012 *hdr2 = *hdr;
2013 elf_elfsections (abfd)[shindex] = hdr2;
d9bc7a44 2014 target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr);
252b5132
RH		 2015 target_sect->flags |= SEC_RELOC;
2016 target_sect->relocation = NULL;
2017 target_sect->rel_filepos = hdr->sh_offset;
bf572ba0
MM		 2018 /* In the section to which the relocations apply, mark whether
2019 its relocations are of the REL or RELA variety. */
72730e0c 2020 if (hdr->sh_size != 0)
68bfbfcc 2021 target_sect->use_rela_p = hdr->sh_type == SHT_RELA;
252b5132 2022 abfd->flags |= HAS_RELOC;
b34976b6 2023 return TRUE;
252b5132
RH		 2024 }
2025 break;
2026
2027 case SHT_GNU_verdef:
2028 elf_dynverdef (abfd) = shindex;
2029 elf_tdata (abfd)->dynverdef_hdr = *hdr;
2030 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
2031 break;
2032
2033 case SHT_GNU_versym:
2034 elf_dynversym (abfd) = shindex;
2035 elf_tdata (abfd)->dynversym_hdr = *hdr;
2036 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
2037 break;
2038
2039 case SHT_GNU_verneed:
2040 elf_dynverref (abfd) = shindex;
2041 elf_tdata (abfd)->dynverref_hdr = *hdr;
2042 return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
2043 break;
2044
2045 case SHT_SHLIB:
b34976b6 2046 return TRUE;
252b5132 2047
dbb410c3 2048 case SHT_GROUP:
b885599b
AM		 2049 /* We need a BFD section for objcopy and relocatable linking,
2050 and it's handy to have the signature available as the section
2051 name. */
2052 name = group_signature (abfd, hdr);
2053 if (name == NULL)
b34976b6 2054 return FALSE;
dbb410c3 2055 if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name))
b34976b6 2056 return FALSE;
dbb410c3
AM		 2057 if (hdr->contents != NULL)
2058 {
2059 Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents;
2060 unsigned int n_elt = hdr->sh_size / 4;
2061 asection *s;
2062
b885599b
AM		 2063 if (idx->flags & GRP_COMDAT)
2064 hdr->bfd_section->flags
2065 |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
2066
dbb410c3
AM		 2067 while (--n_elt != 0)
2068 if ((s = (++idx)->shdr->bfd_section) != NULL
945906ff 2069 && elf_next_in_group (s) != NULL)
dbb410c3 2070 {
945906ff 2071 elf_next_in_group (hdr->bfd_section) = s;
dbb410c3
AM		 2072 break;
2073 }
2074 }
2075 break;
2076
252b5132
RH		 2077 default:
2078 /* Check for any processor-specific section types. */
2079 {
2080 if (bed->elf_backend_section_from_shdr)
2081 (*bed->elf_backend_section_from_shdr) (abfd, hdr, name);
2082 }
2083 break;
2084 }
2085
b34976b6 2086 return TRUE;
252b5132
RH		 2087}
2088
ec338859
AM		 2089/* Return the section for the local symbol specified by ABFD, R_SYMNDX.
2090 Return SEC for sections that have no elf section, and NULL on error. */
2091
2092asection *
2093bfd_section_from_r_symndx (abfd, cache, sec, r_symndx)
2094 bfd *abfd;
2095 struct sym_sec_cache *cache;
2096 asection *sec;
2097 unsigned long r_symndx;
2098{
ec338859 2099 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc
AM		 2100 unsigned char esym[sizeof (Elf64_External_Sym)];
2101 Elf_External_Sym_Shndx eshndx;
2102 Elf_Internal_Sym isym;
ec338859
AM		 2103 unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE;
2104
2105 if (cache->abfd == abfd && cache->indx[ent] == r_symndx)
2106 return cache->sec[ent];
2107
2108 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6cdc0ccc
AM		 2109 if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx,
2110 &isym, esym, &eshndx) == NULL)
ec338859 2111 return NULL;
9ad5cbcf 2112
ec338859
AM		 2113 if (cache->abfd != abfd)
2114 {
2115 memset (cache->indx, -1, sizeof (cache->indx));
2116 cache->abfd = abfd;
2117 }
2118 cache->indx[ent] = r_symndx;
2119 cache->sec[ent] = sec;
6cdc0ccc 2120 if (isym.st_shndx < SHN_LORESERVE || isym.st_shndx > SHN_HIRESERVE)
ec338859
AM		 2121 {
2122 asection *s;
6cdc0ccc 2123 s = bfd_section_from_elf_index (abfd, isym.st_shndx);
ec338859
AM		 2124 if (s != NULL)
2125 cache->sec[ent] = s;
2126 }
2127 return cache->sec[ent];
2128}
2129
252b5132
RH		 2130/* Given an ELF section number, retrieve the corresponding BFD
2131 section. */
2132
2133asection *
2134bfd_section_from_elf_index (abfd, index)
2135 bfd *abfd;
2136 unsigned int index;
2137{
9ad5cbcf 2138 if (index >= elf_numsections (abfd))
252b5132
RH		 2139 return NULL;
2140 return elf_elfsections (abfd)[index]->bfd_section;
2141}
2142
b34976b6 2143bfd_boolean
252b5132
RH		 2144_bfd_elf_new_section_hook (abfd, sec)
2145 bfd *abfd;
2146 asection *sec;
2147{
2148 struct bfd_elf_section_data *sdata;
2149
f0abc2a1
AM		 2150 sdata = (struct bfd_elf_section_data *) sec->used_by_bfd;
2151 if (sdata == NULL)
2152 {
2153 bfd_size_type amt = sizeof (*sdata);
2154 sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, amt);
2155 if (sdata == NULL)
2156 return FALSE;
2157 sec->used_by_bfd = (PTR) sdata;
2158 }
bf572ba0
MM		 2159
2160 /* Indicate whether or not this section should use RELA relocations. */
68bfbfcc 2161 sec->use_rela_p = get_elf_backend_data (abfd)->default_use_rela_p;
bf572ba0 2162
b34976b6 2163 return TRUE;
252b5132
RH		 2164}
2165
2166/* Create a new bfd section from an ELF program header.
2167
2168 Since program segments have no names, we generate a synthetic name
2169 of the form segment<NUM>, where NUM is generally the index in the
2170 program header table. For segments that are split (see below) we
2171 generate the names segment<NUM>a and segment<NUM>b.
2172
2173 Note that some program segments may have a file size that is different than
2174 (less than) the memory size. All this means is that at execution the
2175 system must allocate the amount of memory specified by the memory size,
2176 but only initialize it with the first "file size" bytes read from the
2177 file. This would occur for example, with program segments consisting
2178 of combined data+bss.
2179
2180 To handle the above situation, this routine generates TWO bfd sections
2181 for the single program segment. The first has the length specified by
2182 the file size of the segment, and the second has the length specified
2183 by the difference between the two sizes. In effect, the segment is split
2184 into it's initialized and uninitialized parts.
2185
2186 */
2187
b34976b6 2188bfd_boolean
20cfcaae 2189_bfd_elf_make_section_from_phdr (abfd, hdr, index, typename)
252b5132
RH		 2190 bfd *abfd;
2191 Elf_Internal_Phdr *hdr;
2192 int index;
20cfcaae 2193 const char *typename;
252b5132
RH		 2194{
2195 asection *newsect;
2196 char *name;
2197 char namebuf[64];
d4c88bbb 2198 size_t len;
252b5132
RH		 2199 int split;
2200
2201 split = ((hdr->p_memsz > 0)
2202 && (hdr->p_filesz > 0)
2203 && (hdr->p_memsz > hdr->p_filesz));
27ac83bf 2204 sprintf (namebuf, "%s%d%s", typename, index, split ? "a" : "");
d4c88bbb
AM		 2205 len = strlen (namebuf) + 1;
2206 name = bfd_alloc (abfd, (bfd_size_type) len);
252b5132 2207 if (!name)
b34976b6 2208 return FALSE;
d4c88bbb 2209 memcpy (name, namebuf, len);
252b5132
RH		 2210 newsect = bfd_make_section (abfd, name);
2211 if (newsect == NULL)
b34976b6 2212 return FALSE;
252b5132
RH		 2213 newsect->vma = hdr->p_vaddr;
2214 newsect->lma = hdr->p_paddr;
2215 newsect->_raw_size = hdr->p_filesz;
2216 newsect->filepos = hdr->p_offset;
2217 newsect->flags |= SEC_HAS_CONTENTS;
2218 if (hdr->p_type == PT_LOAD)
2219 {
2220 newsect->flags |= SEC_ALLOC;
2221 newsect->flags |= SEC_LOAD;
2222 if (hdr->p_flags & PF_X)
2223 {
2224 /* FIXME: all we known is that it has execute PERMISSION,
c044fabd 2225 may be data. */
252b5132
RH		 2226 newsect->flags |= SEC_CODE;
2227 }
2228 }
2229 if (!(hdr->p_flags & PF_W))
2230 {
2231 newsect->flags |= SEC_READONLY;
2232 }
2233
2234 if (split)
2235 {
27ac83bf 2236 sprintf (namebuf, "%s%db", typename, index);
d4c88bbb
AM		 2237 len = strlen (namebuf) + 1;
2238 name = bfd_alloc (abfd, (bfd_size_type) len);
252b5132 2239 if (!name)
b34976b6 2240 return FALSE;
d4c88bbb 2241 memcpy (name, namebuf, len);
252b5132
RH		 2242 newsect = bfd_make_section (abfd, name);
2243 if (newsect == NULL)
b34976b6 2244 return FALSE;
252b5132
RH		 2245 newsect->vma = hdr->p_vaddr + hdr->p_filesz;
2246 newsect->lma = hdr->p_paddr + hdr->p_filesz;
2247 newsect->_raw_size = hdr->p_memsz - hdr->p_filesz;
2248 if (hdr->p_type == PT_LOAD)
2249 {
2250 newsect->flags |= SEC_ALLOC;
2251 if (hdr->p_flags & PF_X)
2252 newsect->flags |= SEC_CODE;
2253 }
2254 if (!(hdr->p_flags & PF_W))
2255 newsect->flags |= SEC_READONLY;
2256 }
2257
b34976b6 2258 return TRUE;
252b5132
RH		 2259}
2260
b34976b6 2261bfd_boolean
20cfcaae
NC		 2262bfd_section_from_phdr (abfd, hdr, index)
2263 bfd *abfd;
2264 Elf_Internal_Phdr *hdr;
2265 int index;
2266{
2267 struct elf_backend_data *bed;
2268
2269 switch (hdr->p_type)
2270 {
2271 case PT_NULL:
2272 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "null");
2273
2274 case PT_LOAD:
2275 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "load");
2276
2277 case PT_DYNAMIC:
2278 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "dynamic");
2279
2280 case PT_INTERP:
2281 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "interp");
2282
2283 case PT_NOTE:
2284 if (! _bfd_elf_make_section_from_phdr (abfd, hdr, index, "note"))
b34976b6 2285 return FALSE;
dc810e39 2286 if (! elfcore_read_notes (abfd, (file_ptr) hdr->p_offset, hdr->p_filesz))
b34976b6
AM		 2287 return FALSE;
2288 return TRUE;
20cfcaae
NC		 2289
2290 case PT_SHLIB:
2291 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "shlib");
2292
2293 case PT_PHDR:
2294 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "phdr");
2295
811072d8
RM		 2296 case PT_GNU_EH_FRAME:
2297 return _bfd_elf_make_section_from_phdr (abfd, hdr, index,
2298 "eh_frame_hdr");
2299
9ee5e499
JJ		 2300 case PT_GNU_STACK:
2301 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "stack");
2302
20cfcaae
NC		 2303 default:
2304 /* Check for any processor-specific program segment types.
c044fabd 2305 If no handler for them, default to making "segment" sections. */
20cfcaae
NC		 2306 bed = get_elf_backend_data (abfd);
2307 if (bed->elf_backend_section_from_phdr)
2308 return (*bed->elf_backend_section_from_phdr) (abfd, hdr, index);
2309 else
2310 return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "segment");
2311 }
2312}
2313
23bc299b 2314/* Initialize REL_HDR, the section-header for new section, containing
b34976b6 2315 relocations against ASECT. If USE_RELA_P is TRUE, we use RELA
23bc299b
MM		 2316 relocations; otherwise, we use REL relocations. */
2317
b34976b6 2318bfd_boolean
23bc299b
MM		 2319_bfd_elf_init_reloc_shdr (abfd, rel_hdr, asect, use_rela_p)
2320 bfd *abfd;
2321 Elf_Internal_Shdr *rel_hdr;
2322 asection *asect;
b34976b6 2323 bfd_boolean use_rela_p;
23bc299b
MM		 2324{
2325 char *name;
dc810e39
AM		 2326 struct elf_backend_data *bed = get_elf_backend_data (abfd);
2327 bfd_size_type amt = sizeof ".rela" + strlen (asect->name);
23bc299b 2328
dc810e39 2329 name = bfd_alloc (abfd, amt);
23bc299b 2330 if (name == NULL)
b34976b6 2331 return FALSE;
23bc299b
MM		 2332 sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name);
2333 rel_hdr->sh_name =
2b0f7ef9 2334 (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name,
b34976b6 2335 FALSE);
23bc299b 2336 if (rel_hdr->sh_name == (unsigned int) -1)
b34976b6 2337 return FALSE;
23bc299b
MM		 2338 rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL;
2339 rel_hdr->sh_entsize = (use_rela_p
2340 ? bed->s->sizeof_rela
2341 : bed->s->sizeof_rel);
45d6a902 2342 rel_hdr->sh_addralign = 1 << bed->s->log_file_align;
23bc299b
MM		 2343 rel_hdr->sh_flags = 0;
2344 rel_hdr->sh_addr = 0;
2345 rel_hdr->sh_size = 0;
2346 rel_hdr->sh_offset = 0;
2347
b34976b6 2348 return TRUE;
23bc299b
MM		 2349}
2350
252b5132
RH		 2351/* Set up an ELF internal section header for a section. */
2352
252b5132
RH		 2353static void
2354elf_fake_sections (abfd, asect, failedptrarg)
2355 bfd *abfd;
2356 asection *asect;
2357 PTR failedptrarg;
2358{
2359 struct elf_backend_data *bed = get_elf_backend_data (abfd);
b34976b6 2360 bfd_boolean *failedptr = (bfd_boolean *) failedptrarg;
252b5132
RH		 2361 Elf_Internal_Shdr *this_hdr;
2362
2363 if (*failedptr)
2364 {
2365 /* We already failed; just get out of the bfd_map_over_sections
2366 loop. */
2367 return;
2368 }
2369
2370 this_hdr = &elf_section_data (asect)->this_hdr;
2371
e57b5356
AM		 2372 this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd),
2373 asect->name, FALSE);
2374 if (this_hdr->sh_name == (unsigned int) -1)
252b5132 2375 {
b34976b6 2376 *failedptr = TRUE;
252b5132
RH		 2377 return;
2378 }
2379
2380 this_hdr->sh_flags = 0;
2381
2382 if ((asect->flags & SEC_ALLOC) != 0
2383 || asect->user_set_vma)
2384 this_hdr->sh_addr = asect->vma;
2385 else
2386 this_hdr->sh_addr = 0;
2387
2388 this_hdr->sh_offset = 0;
2389 this_hdr->sh_size = asect->_raw_size;
2390 this_hdr->sh_link = 0;
2391 this_hdr->sh_addralign = 1 << asect->alignment_power;
2392 /* The sh_entsize and sh_info fields may have been set already by
2393 copy_private_section_data. */
2394
2395 this_hdr->bfd_section = asect;
2396 this_hdr->contents = NULL;
2397
2398 /* FIXME: This should not be based on section names. */
2399 if (strcmp (asect->name, ".dynstr") == 0)
2400 this_hdr->sh_type = SHT_STRTAB;
2401 else if (strcmp (asect->name, ".hash") == 0)
2402 {
2403 this_hdr->sh_type = SHT_HASH;
c7ac6ff8 2404 this_hdr->sh_entsize = bed->s->sizeof_hash_entry;
252b5132
RH		 2405 }
2406 else if (strcmp (asect->name, ".dynsym") == 0)
2407 {
2408 this_hdr->sh_type = SHT_DYNSYM;
2409 this_hdr->sh_entsize = bed->s->sizeof_sym;
2410 }
2411 else if (strcmp (asect->name, ".dynamic") == 0)
2412 {
2413 this_hdr->sh_type = SHT_DYNAMIC;
2414 this_hdr->sh_entsize = bed->s->sizeof_dyn;
2415 }
a9d024b8 2416 else if (strncmp (asect->name, ".rela", 5) == 0
bf572ba0 2417 && get_elf_backend_data (abfd)->may_use_rela_p)
252b5132
RH		 2418 {
2419 this_hdr->sh_type = SHT_RELA;
2420 this_hdr->sh_entsize = bed->s->sizeof_rela;
2421 }
a9d024b8 2422 else if (strncmp (asect->name, ".rel", 4) == 0
bf572ba0 2423 && get_elf_backend_data (abfd)->may_use_rel_p)
252b5132
RH		 2424 {
2425 this_hdr->sh_type = SHT_REL;
2426 this_hdr->sh_entsize = bed->s->sizeof_rel;
2427 }
25e27870
L		 2428 else if (strcmp (asect->name, ".init_array") == 0)
2429 this_hdr->sh_type = SHT_INIT_ARRAY;
2430 else if (strcmp (asect->name, ".fini_array") == 0)
2431 this_hdr->sh_type = SHT_FINI_ARRAY;
2432 else if (strcmp (asect->name, ".preinit_array") == 0)
2433 this_hdr->sh_type = SHT_PREINIT_ARRAY;
252b5132
RH		 2434 else if (strncmp (asect->name, ".note", 5) == 0)
2435 this_hdr->sh_type = SHT_NOTE;
2436 else if (strncmp (asect->name, ".stab", 5) == 0
2437 && strcmp (asect->name + strlen (asect->name) - 3, "str") == 0)
2438 this_hdr->sh_type = SHT_STRTAB;
2439 else if (strcmp (asect->name, ".gnu.version") == 0)
2440 {
2441 this_hdr->sh_type = SHT_GNU_versym;
2442 this_hdr->sh_entsize = sizeof (Elf_External_Versym);
2443 }
2444 else if (strcmp (asect->name, ".gnu.version_d") == 0)
2445 {
2446 this_hdr->sh_type = SHT_GNU_verdef;
2447 this_hdr->sh_entsize = 0;
2448 /* objcopy or strip will copy over sh_info, but may not set
2449 cverdefs. The linker will set cverdefs, but sh_info will be
2450 zero. */
2451 if (this_hdr->sh_info == 0)
2452 this_hdr->sh_info = elf_tdata (abfd)->cverdefs;
2453 else
2454 BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0
2455 || this_hdr->sh_info == elf_tdata (abfd)->cverdefs);
2456 }
2457 else if (strcmp (asect->name, ".gnu.version_r") == 0)
2458 {
2459 this_hdr->sh_type = SHT_GNU_verneed;
2460 this_hdr->sh_entsize = 0;
2461 /* objcopy or strip will copy over sh_info, but may not set
2462 cverrefs. The linker will set cverrefs, but sh_info will be
2463 zero. */
2464 if (this_hdr->sh_info == 0)
2465 this_hdr->sh_info = elf_tdata (abfd)->cverrefs;
2466 else
2467 BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0
2468 || this_hdr->sh_info == elf_tdata (abfd)->cverrefs);
2469 }
dbb410c3
AM		 2470 else if ((asect->flags & SEC_GROUP) != 0)
2471 {
2472 this_hdr->sh_type = SHT_GROUP;
2473 this_hdr->sh_entsize = 4;
2474 }
252b5132 2475 else if ((asect->flags & SEC_ALLOC) != 0
edd29cf9
AM		 2476 && (((asect->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2477 || (asect->flags & SEC_NEVER_LOAD) != 0))
252b5132
RH		 2478 this_hdr->sh_type = SHT_NOBITS;
2479 else
6c99a5c3 2480 this_hdr->sh_type = SHT_PROGBITS;
252b5132
RH		 2481
2482 if ((asect->flags & SEC_ALLOC) != 0)
2483 this_hdr->sh_flags |= SHF_ALLOC;
2484 if ((asect->flags & SEC_READONLY) == 0)
2485 this_hdr->sh_flags |= SHF_WRITE;
2486 if ((asect->flags & SEC_CODE) != 0)
2487 this_hdr->sh_flags |= SHF_EXECINSTR;
f5fa8ca2
JJ		 2488 if ((asect->flags & SEC_MERGE) != 0)
2489 {
2490 this_hdr->sh_flags |= SHF_MERGE;
2491 this_hdr->sh_entsize = asect->entsize;
2492 if ((asect->flags & SEC_STRINGS) != 0)
2493 this_hdr->sh_flags |= SHF_STRINGS;
2494 }
1126897b 2495 if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL)
dbb410c3 2496 this_hdr->sh_flags |= SHF_GROUP;
13ae64f3 2497 if ((asect->flags & SEC_THREAD_LOCAL) != 0)
704afa60
JJ		 2498 {
2499 this_hdr->sh_flags |= SHF_TLS;
2500 if (asect->_raw_size == 0 && (asect->flags & SEC_HAS_CONTENTS) == 0)
2501 {
2502 struct bfd_link_order *o;
b34976b6 2503
704afa60
JJ		 2504 this_hdr->sh_size = 0;
2505 for (o = asect->link_order_head; o != NULL; o = o->next)
2506 if (this_hdr->sh_size < o->offset + o->size)
2507 this_hdr->sh_size = o->offset + o->size;
2508 if (this_hdr->sh_size)
2509 this_hdr->sh_type = SHT_NOBITS;
2510 }
2511 }
252b5132
RH		 2512
2513 /* Check for processor-specific section types. */
e1fddb6b
AO		 2514 if (bed->elf_backend_fake_sections
2515 && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect))
b34976b6 2516 *failedptr = TRUE;
252b5132
RH		 2517
2518 /* If the section has relocs, set up a section header for the
23bc299b
MM		 2519 SHT_REL[A] section. If two relocation sections are required for
2520 this section, it is up to the processor-specific back-end to
c044fabd 2521 create the other. */
23bc299b 2522 if ((asect->flags & SEC_RELOC) != 0
c044fabd 2523 && !_bfd_elf_init_reloc_shdr (abfd,
23bc299b 2524 &elf_section_data (asect)->rel_hdr,
c044fabd 2525 asect,
68bfbfcc 2526 asect->use_rela_p))
b34976b6 2527 *failedptr = TRUE;
252b5132
RH		 2528}
2529
dbb410c3
AM		 2530/* Fill in the contents of a SHT_GROUP section. */
2531
1126897b
AM		 2532void
2533bfd_elf_set_group_contents (abfd, sec, failedptrarg)
dbb410c3
AM		 2534 bfd *abfd;
2535 asection *sec;
1126897b 2536 PTR failedptrarg;
dbb410c3 2537{
b34976b6 2538 bfd_boolean *failedptr = (bfd_boolean *) failedptrarg;
dbb410c3 2539 unsigned long symindx;
9dce4196 2540 asection *elt, *first;
dbb410c3
AM		 2541 unsigned char *loc;
2542 struct bfd_link_order *l;
b34976b6 2543 bfd_boolean gas;
dbb410c3
AM		 2544
2545 if (elf_section_data (sec)->this_hdr.sh_type != SHT_GROUP
2546 || *failedptr)
2547 return;
2548
1126897b
AM		 2549 symindx = 0;
2550 if (elf_group_id (sec) != NULL)
2551 symindx = elf_group_id (sec)->udata.i;
2552
2553 if (symindx == 0)
2554 {
2555 /* If called from the assembler, swap_out_syms will have set up
2556 elf_section_syms; If called for "ld -r", use target_index. */
2557 if (elf_section_syms (abfd) != NULL)
2558 symindx = elf_section_syms (abfd)[sec->index]->udata.i;
2559 else
2560 symindx = sec->target_index;
2561 }
dbb410c3
AM		 2562 elf_section_data (sec)->this_hdr.sh_info = symindx;
2563
1126897b 2564 /* The contents won't be allocated for "ld -r" or objcopy. */
b34976b6 2565 gas = TRUE;
dbb410c3
AM		 2566 if (sec->contents == NULL)
2567 {
b34976b6 2568 gas = FALSE;
dbb410c3 2569 sec->contents = bfd_alloc (abfd, sec->_raw_size);
9dce4196
AM		 2570
2571 /* Arrange for the section to be written out. */
2572 elf_section_data (sec)->this_hdr.contents = sec->contents;
dbb410c3
AM		 2573 if (sec->contents == NULL)
2574 {
b34976b6 2575 *failedptr = TRUE;
dbb410c3
AM		 2576 return;
2577 }
2578 }
2579
2580 loc = sec->contents + sec->_raw_size;
2581
9dce4196
AM		 2582 /* Get the pointer to the first section in the group that gas
2583 squirreled away here. objcopy arranges for this to be set to the
2584 start of the input section group. */
2585 first = elt = elf_next_in_group (sec);
dbb410c3
AM		 2586
2587 /* First element is a flag word. Rest of section is elf section
2588 indices for all the sections of the group. Write them backwards
2589 just to keep the group in the same order as given in .section
2590 directives, not that it matters. */
2591 while (elt != NULL)
2592 {
9dce4196
AM		 2593 asection *s;
2594 unsigned int idx;
2595
dbb410c3 2596 loc -= 4;
9dce4196
AM		 2597 s = elt;
2598 if (!gas)
2599 s = s->output_section;
2600 idx = 0;
2601 if (s != NULL)
2602 idx = elf_section_data (s)->this_idx;
2603 H_PUT_32 (abfd, idx, loc);
945906ff 2604 elt = elf_next_in_group (elt);
9dce4196
AM		 2605 if (elt == first)
2606 break;
dbb410c3
AM		 2607 }
2608
2609 /* If this is a relocatable link, then the above did nothing because
2610 SEC is the output section. Look through the input sections
2611 instead. */
2612 for (l = sec->link_order_head; l != NULL; l = l->next)
2613 if (l->type == bfd_indirect_link_order
945906ff 2614 && (elt = elf_next_in_group (l->u.indirect.section)) != NULL)
dbb410c3
AM		 2615 do
2616 {
2617 loc -= 4;
2618 H_PUT_32 (abfd,
2619 elf_section_data (elt->output_section)->this_idx, loc);
945906ff 2620 elt = elf_next_in_group (elt);
dbb410c3
AM		 2621 /* During a relocatable link, the lists are circular. */
2622 }
945906ff 2623 while (elt != elf_next_in_group (l->u.indirect.section));
dbb410c3 2624
9dce4196
AM		 2625 /* With ld -r, merging SHT_GROUP sections results in wasted space
2626 due to allowing for the flag word on each input. We may well
2627 duplicate entries too. */
2628 while ((loc -= 4) > sec->contents)
2629 H_PUT_32 (abfd, 0, loc);
2630
2631 if (loc != sec->contents)
2632 abort ();
dbb410c3 2633
9dce4196 2634 H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc);
dbb410c3
AM		 2635}
2636
252b5132
RH		 2637/* Assign all ELF section numbers. The dummy first section is handled here
2638 too. The link/info pointers for the standard section types are filled
2639 in here too, while we're at it. */
2640
b34976b6 2641static bfd_boolean
252b5132
RH		 2642assign_section_numbers (abfd)
2643 bfd *abfd;
2644{
2645 struct elf_obj_tdata *t = elf_tdata (abfd);
2646 asection *sec;
2b0f7ef9 2647 unsigned int section_number, secn;
252b5132 2648 Elf_Internal_Shdr **i_shdrp;
dc810e39 2649 bfd_size_type amt;
252b5132
RH		 2650
2651 section_number = 1;
2652
2b0f7ef9
JJ		 2653 _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd));
2654
252b5132
RH		 2655 for (sec = abfd->sections; sec; sec = sec->next)
2656 {
2657 struct bfd_elf_section_data *d = elf_section_data (sec);
2658
9ad5cbcf
AM		 2659 if (section_number == SHN_LORESERVE)
2660 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
252b5132 2661 d->this_idx = section_number++;
2b0f7ef9 2662 _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name);
252b5132
RH		 2663 if ((sec->flags & SEC_RELOC) == 0)
2664 d->rel_idx = 0;
2665 else
2b0f7ef9 2666 {
9ad5cbcf
AM		 2667 if (section_number == SHN_LORESERVE)
2668 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
2b0f7ef9
JJ		 2669 d->rel_idx = section_number++;
2670 _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr.sh_name);
2671 }
23bc299b
MM		 2672
2673 if (d->rel_hdr2)
2b0f7ef9 2674 {
9ad5cbcf
AM		 2675 if (section_number == SHN_LORESERVE)
2676 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
2b0f7ef9
JJ		 2677 d->rel_idx2 = section_number++;
2678 _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr2->sh_name);
2679 }
23bc299b
MM		 2680 else
2681 d->rel_idx2 = 0;
252b5132
RH		 2682 }
2683
9ad5cbcf
AM		 2684 if (section_number == SHN_LORESERVE)
2685 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
252b5132 2686 t->shstrtab_section = section_number++;
2b0f7ef9 2687 _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name);
252b5132 2688 elf_elfheader (abfd)->e_shstrndx = t->shstrtab_section;
252b5132
RH		 2689
2690 if (bfd_get_symcount (abfd) > 0)
2691 {
9ad5cbcf
AM		 2692 if (section_number == SHN_LORESERVE)
2693 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
252b5132 2694 t->symtab_section = section_number++;
2b0f7ef9 2695 _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name);
9ad5cbcf
AM		 2696 if (section_number > SHN_LORESERVE - 2)
2697 {
2698 if (section_number == SHN_LORESERVE)
2699 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
2700 t->symtab_shndx_section = section_number++;
2701 t->symtab_shndx_hdr.sh_name
2702 = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd),
b34976b6 2703 ".symtab_shndx", FALSE);
9ad5cbcf 2704 if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1)
b34976b6 2705 return FALSE;
9ad5cbcf
AM		 2706 }
2707 if (section_number == SHN_LORESERVE)
2708 section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
252b5132 2709 t->strtab_section = section_number++;
2b0f7ef9 2710 _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name);
252b5132
RH		 2711 }
2712
2b0f7ef9
JJ		 2713 _bfd_elf_strtab_finalize (elf_shstrtab (abfd));
2714 t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd));
9ad5cbcf
AM		 2715
2716 elf_numsections (abfd) = section_number;
252b5132 2717 elf_elfheader (abfd)->e_shnum = section_number;
9ad5cbcf
AM		 2718 if (section_number > SHN_LORESERVE)
2719 elf_elfheader (abfd)->e_shnum -= SHN_HIRESERVE + 1 - SHN_LORESERVE;
252b5132
RH		 2720
2721 /* Set up the list of section header pointers, in agreement with the
2722 indices. */
dc810e39 2723 amt = section_number * sizeof (Elf_Internal_Shdr *);
c97e73dd 2724 i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt);
252b5132 2725 if (i_shdrp == NULL)
b34976b6 2726 return FALSE;
252b5132 2727
dc810e39 2728 amt = sizeof (Elf_Internal_Shdr);
c97e73dd 2729 i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, amt);
252b5132
RH		 2730 if (i_shdrp[0] == NULL)
2731 {
2732 bfd_release (abfd, i_shdrp);
b34976b6 2733 return FALSE;
252b5132 2734 }
252b5132
RH		 2735
2736 elf_elfsections (abfd) = i_shdrp;
2737
2738 i_shdrp[t->shstrtab_section] = &t->shstrtab_hdr;
2739 if (bfd_get_symcount (abfd) > 0)
2740 {
2741 i_shdrp[t->symtab_section] = &t->symtab_hdr;
9ad5cbcf
AM		 2742 if (elf_numsections (abfd) > SHN_LORESERVE)
2743 {
2744 i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr;
2745 t->symtab_shndx_hdr.sh_link = t->symtab_section;
2746 }
252b5132
RH		 2747 i_shdrp[t->strtab_section] = &t->strtab_hdr;
2748 t->symtab_hdr.sh_link = t->strtab_section;
2749 }
2750 for (sec = abfd->sections; sec; sec = sec->next)
2751 {
2752 struct bfd_elf_section_data *d = elf_section_data (sec);
2753 asection *s;
2754 const char *name;
2755
2756 i_shdrp[d->this_idx] = &d->this_hdr;
2757 if (d->rel_idx != 0)
2758 i_shdrp[d->rel_idx] = &d->rel_hdr;
23bc299b
MM		 2759 if (d->rel_idx2 != 0)
2760 i_shdrp[d->rel_idx2] = d->rel_hdr2;
252b5132
RH		 2761
2762 /* Fill in the sh_link and sh_info fields while we're at it. */
2763
2764 /* sh_link of a reloc section is the section index of the symbol
2765 table. sh_info is the section index of the section to which
2766 the relocation entries apply. */
2767 if (d->rel_idx != 0)
2768 {
2769 d->rel_hdr.sh_link = t->symtab_section;
2770 d->rel_hdr.sh_info = d->this_idx;
2771 }
23bc299b
MM		 2772 if (d->rel_idx2 != 0)
2773 {
2774 d->rel_hdr2->sh_link = t->symtab_section;
2775 d->rel_hdr2->sh_info = d->this_idx;
2776 }
252b5132
RH		 2777
2778 switch (d->this_hdr.sh_type)
2779 {
2780 case SHT_REL:
2781 case SHT_RELA:
2782 /* A reloc section which we are treating as a normal BFD
2783 section. sh_link is the section index of the symbol
2784 table. sh_info is the section index of the section to
2785 which the relocation entries apply. We assume that an
2786 allocated reloc section uses the dynamic symbol table.
2787 FIXME: How can we be sure? */
2788 s = bfd_get_section_by_name (abfd, ".dynsym");
2789 if (s != NULL)
2790 d->this_hdr.sh_link = elf_section_data (s)->this_idx;
2791
2792 /* We look up the section the relocs apply to by name. */
2793 name = sec->name;
2794 if (d->this_hdr.sh_type == SHT_REL)
2795 name += 4;
2796 else
2797 name += 5;
2798 s = bfd_get_section_by_name (abfd, name);
2799 if (s != NULL)
2800 d->this_hdr.sh_info = elf_section_data (s)->this_idx;
2801 break;
2802
2803 case SHT_STRTAB:
2804 /* We assume that a section named .stab*str is a stabs
2805 string section. We look for a section with the same name
2806 but without the trailing ``str'', and set its sh_link
2807 field to point to this section. */
2808 if (strncmp (sec->name, ".stab", sizeof ".stab" - 1) == 0
2809 && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0)
2810 {
2811 size_t len;
2812 char *alc;
2813
2814 len = strlen (sec->name);
d4c88bbb 2815 alc = (char *) bfd_malloc ((bfd_size_type) (len - 2));
252b5132 2816 if (alc == NULL)
b34976b6 2817 return FALSE;
d4c88bbb 2818 memcpy (alc, sec->name, len - 3);
252b5132
RH		 2819 alc[len - 3] = '\0';
2820 s = bfd_get_section_by_name (abfd, alc);
2821 free (alc);
2822 if (s != NULL)
2823 {
2824 elf_section_data (s)->this_hdr.sh_link = d->this_idx;
2825
2826 /* This is a .stab section. */
0594c12d
AM		 2827 if (elf_section_data (s)->this_hdr.sh_entsize == 0)
2828 elf_section_data (s)->this_hdr.sh_entsize
2829 = 4 + 2 * bfd_get_arch_size (abfd) / 8;
252b5132
RH		 2830 }
2831 }
2832 break;
2833
2834 case SHT_DYNAMIC:
2835 case SHT_DYNSYM:
2836 case SHT_GNU_verneed:
2837 case SHT_GNU_verdef:
2838 /* sh_link is the section header index of the string table
2839 used for the dynamic entries, or the symbol table, or the
2840 version strings. */
2841 s = bfd_get_section_by_name (abfd, ".dynstr");
2842 if (s != NULL)
2843 d->this_hdr.sh_link = elf_section_data (s)->this_idx;
2844 break;
2845
2846 case SHT_HASH:
2847 case SHT_GNU_versym:
2848 /* sh_link is the section header index of the symbol table
2849 this hash table or version table is for. */
2850 s = bfd_get_section_by_name (abfd, ".dynsym");
2851 if (s != NULL)
2852 d->this_hdr.sh_link = elf_section_data (s)->this_idx;
2853 break;
dbb410c3
AM		 2854
2855 case SHT_GROUP:
2856 d->this_hdr.sh_link = t->symtab_section;
252b5132
RH		 2857 }
2858 }
2859
2b0f7ef9 2860 for (secn = 1; secn < section_number; ++secn)
9ad5cbcf
AM		 2861 if (i_shdrp[secn] == NULL)
2862 i_shdrp[secn] = i_shdrp[0];
2863 else
2864 i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd),
2865 i_shdrp[secn]->sh_name);
b34976b6 2866 return TRUE;
252b5132
RH		 2867}
2868
2869/* Map symbol from it's internal number to the external number, moving
2870 all local symbols to be at the head of the list. */
2871
2872static INLINE int
2873sym_is_global (abfd, sym)
2874 bfd *abfd;
2875 asymbol *sym;
2876{
2877 /* If the backend has a special mapping, use it. */
2878 if (get_elf_backend_data (abfd)->elf_backend_sym_is_global)
2879 return ((*get_elf_backend_data (abfd)->elf_backend_sym_is_global)
2880 (abfd, sym));
2881
2882 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
2883 || bfd_is_und_section (bfd_get_section (sym))
2884 || bfd_is_com_section (bfd_get_section (sym)));
2885}
2886
b34976b6 2887static bfd_boolean
252b5132
RH		 2888elf_map_symbols (abfd)
2889 bfd *abfd;
2890{
dc810e39 2891 unsigned int symcount = bfd_get_symcount (abfd);
252b5132
RH		 2892 asymbol **syms = bfd_get_outsymbols (abfd);
2893 asymbol **sect_syms;
dc810e39
AM		 2894 unsigned int num_locals = 0;
2895 unsigned int num_globals = 0;
2896 unsigned int num_locals2 = 0;
2897 unsigned int num_globals2 = 0;
252b5132 2898 int max_index = 0;
dc810e39 2899 unsigned int idx;
252b5132
RH		 2900 asection *asect;
2901 asymbol **new_syms;
dc810e39 2902 bfd_size_type amt;
252b5132
RH		 2903
2904#ifdef DEBUG
2905 fprintf (stderr, "elf_map_symbols\n");
2906 fflush (stderr);
2907#endif
2908
252b5132
RH		 2909 for (asect = abfd->sections; asect; asect = asect->next)
2910 {
2911 if (max_index < asect->index)
2912 max_index = asect->index;
2913 }
2914
2915 max_index++;
dc810e39
AM		 2916 amt = max_index * sizeof (asymbol *);
2917 sect_syms = (asymbol **) bfd_zalloc (abfd, amt);
252b5132 2918 if (sect_syms == NULL)
b34976b6 2919 return FALSE;
252b5132 2920 elf_section_syms (abfd) = sect_syms;
4e89ac30 2921 elf_num_section_syms (abfd) = max_index;
252b5132 2922
079e9a2f
AM		 2923 /* Init sect_syms entries for any section symbols we have already
2924 decided to output. */
252b5132
RH		 2925 for (idx = 0; idx < symcount; idx++)
2926 {
dc810e39 2927 asymbol *sym = syms[idx];
c044fabd 2928
252b5132
RH		 2929 if ((sym->flags & BSF_SECTION_SYM) != 0
2930 && sym->value == 0)
2931 {
2932 asection *sec;
2933
2934 sec = sym->section;
2935
2936 if (sec->owner != NULL)
2937 {
2938 if (sec->owner != abfd)
2939 {
2940 if (sec->output_offset != 0)
2941 continue;
c044fabd 2942
252b5132
RH		 2943 sec = sec->output_section;
2944
079e9a2f
AM		 2945 /* Empty sections in the input files may have had a
2946 section symbol created for them. (See the comment
2947 near the end of _bfd_generic_link_output_symbols in
2948 linker.c). If the linker script discards such
2949 sections then we will reach this point. Since we know
2950 that we cannot avoid this case, we detect it and skip
2951 the abort and the assignment to the sect_syms array.
2952 To reproduce this particular case try running the
2953 linker testsuite test ld-scripts/weak.exp for an ELF
2954 port that uses the generic linker. */
252b5132
RH		 2955 if (sec->owner == NULL)
2956 continue;
2957
2958 BFD_ASSERT (sec->owner == abfd);
2959 }
2960 sect_syms[sec->index] = syms[idx];
2961 }
2962 }
2963 }
2964
252b5132
RH		 2965 /* Classify all of the symbols. */
2966 for (idx = 0; idx < symcount; idx++)
2967 {
2968 if (!sym_is_global (abfd, syms[idx]))
2969 num_locals++;
2970 else
2971 num_globals++;
2972 }
079e9a2f
AM		 2973
2974 /* We will be adding a section symbol for each BFD section. Most normal
2975 sections will already have a section symbol in outsymbols, but
2976 eg. SHT_GROUP sections will not, and we need the section symbol mapped
2977 at least in that case. */
252b5132
RH		 2978 for (asect = abfd->sections; asect; asect = asect->next)
2979 {
079e9a2f 2980 if (sect_syms[asect->index] == NULL)
252b5132 2981 {
079e9a2f 2982 if (!sym_is_global (abfd, asect->symbol))
252b5132
RH		 2983 num_locals++;
2984 else
2985 num_globals++;
252b5132
RH		 2986 }
2987 }
2988
2989 /* Now sort the symbols so the local symbols are first. */
dc810e39
AM		 2990 amt = (num_locals + num_globals) * sizeof (asymbol *);
2991 new_syms = (asymbol **) bfd_alloc (abfd, amt);
2992
252b5132 2993 if (new_syms == NULL)
b34976b6 2994 return FALSE;
252b5132
RH		 2995
2996 for (idx = 0; idx < symcount; idx++)
2997 {
2998 asymbol *sym = syms[idx];
dc810e39 2999 unsigned int i;
252b5132
RH		 3000
3001 if (!sym_is_global (abfd, sym))
3002 i = num_locals2++;
3003 else
3004 i = num_locals + num_globals2++;
3005 new_syms[i] = sym;
3006 sym->udata.i = i + 1;
3007 }
3008 for (asect = abfd->sections; asect; asect = asect->next)
3009 {
079e9a2f 3010 if (sect_syms[asect->index] == NULL)
252b5132 3011 {
079e9a2f 3012 asymbol *sym = asect->symbol;
dc810e39 3013 unsigned int i;
252b5132 3014
079e9a2f 3015 sect_syms[asect->index] = sym;
252b5132
RH		 3016 if (!sym_is_global (abfd, sym))
3017 i = num_locals2++;
3018 else
3019 i = num_locals + num_globals2++;
3020 new_syms[i] = sym;
3021 sym->udata.i = i + 1;
3022 }
3023 }
3024
3025 bfd_set_symtab (abfd, new_syms, num_locals + num_globals);
3026
3027 elf_num_locals (abfd) = num_locals;
3028 elf_num_globals (abfd) = num_globals;
b34976b6 3029 return TRUE;
252b5132
RH		 3030}
3031
3032/* Align to the maximum file alignment that could be required for any
3033 ELF data structure. */
3034
b34976b6
AM		 3035static INLINE file_ptr align_file_position
3036 PARAMS ((file_ptr, int));
252b5132
RH		 3037static INLINE file_ptr
3038align_file_position (off, align)
3039 file_ptr off;
3040 int align;
3041{
3042 return (off + align - 1) & ~(align - 1);
3043}
3044
3045/* Assign a file position to a section, optionally aligning to the
3046 required section alignment. */
3047
3048INLINE file_ptr
3049_bfd_elf_assign_file_position_for_section (i_shdrp, offset, align)
3050 Elf_Internal_Shdr *i_shdrp;
3051 file_ptr offset;
b34976b6 3052 bfd_boolean align;
252b5132
RH		 3053{
3054 if (align)
3055 {
3056 unsigned int al;
3057
3058 al = i_shdrp->sh_addralign;
3059 if (al > 1)
3060 offset = BFD_ALIGN (offset, al);
3061 }
3062 i_shdrp->sh_offset = offset;
3063 if (i_shdrp->bfd_section != NULL)
3064 i_shdrp->bfd_section->filepos = offset;
3065 if (i_shdrp->sh_type != SHT_NOBITS)
3066 offset += i_shdrp->sh_size;
3067 return offset;
3068}
3069
3070/* Compute the file positions we are going to put the sections at, and
3071 otherwise prepare to begin writing out the ELF file. If LINK_INFO
3072 is not NULL, this is being called by the ELF backend linker. */
3073
b34976b6 3074bfd_boolean
252b5132
RH		 3075_bfd_elf_compute_section_file_positions (abfd, link_info)
3076 bfd *abfd;
3077 struct bfd_link_info *link_info;
3078{
3079 struct elf_backend_data *bed = get_elf_backend_data (abfd);
b34976b6 3080 bfd_boolean failed;
252b5132
RH		 3081 struct bfd_strtab_hash *strtab;
3082 Elf_Internal_Shdr *shstrtab_hdr;
3083
3084 if (abfd->output_has_begun)
b34976b6 3085 return TRUE;
252b5132
RH		 3086
3087 /* Do any elf backend specific processing first. */
3088 if (bed->elf_backend_begin_write_processing)
3089 (*bed->elf_backend_begin_write_processing) (abfd, link_info);
3090
3091 if (! prep_headers (abfd))
b34976b6 3092 return FALSE;
252b5132 3093
e6c51ed4
NC		 3094 /* Post process the headers if necessary. */
3095 if (bed->elf_backend_post_process_headers)
3096 (*bed->elf_backend_post_process_headers) (abfd, link_info);
3097
b34976b6 3098 failed = FALSE;
252b5132
RH		 3099 bfd_map_over_sections (abfd, elf_fake_sections, &failed);
3100 if (failed)
b34976b6 3101 return FALSE;
252b5132
RH		 3102
3103 if (!assign_section_numbers (abfd))
b34976b6 3104 return FALSE;
252b5132
RH		 3105
3106 /* The backend linker builds symbol table information itself. */
3107 if (link_info == NULL && bfd_get_symcount (abfd) > 0)
3108 {
3109 /* Non-zero if doing a relocatable link. */
3110 int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC));
3111
3112 if (! swap_out_syms (abfd, &strtab, relocatable_p))
b34976b6 3113 return FALSE;
252b5132
RH		 3114 }
3115
1126897b 3116 if (link_info == NULL)
dbb410c3 3117 {
1126897b 3118 bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed);
dbb410c3 3119 if (failed)
b34976b6 3120 return FALSE;
dbb410c3
AM		 3121 }
3122
252b5132
RH		 3123 shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr;
3124 /* sh_name was set in prep_headers. */
3125 shstrtab_hdr->sh_type = SHT_STRTAB;
3126 shstrtab_hdr->sh_flags = 0;
3127 shstrtab_hdr->sh_addr = 0;
2b0f7ef9 3128 shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd));
252b5132
RH		 3129 shstrtab_hdr->sh_entsize = 0;
3130 shstrtab_hdr->sh_link = 0;
3131 shstrtab_hdr->sh_info = 0;
3132 /* sh_offset is set in assign_file_positions_except_relocs. */
3133 shstrtab_hdr->sh_addralign = 1;
3134
3135 if (!assign_file_positions_except_relocs (abfd))
b34976b6 3136 return FALSE;
252b5132
RH		 3137
3138 if (link_info == NULL && bfd_get_symcount (abfd) > 0)
3139 {
3140 file_ptr off;
3141 Elf_Internal_Shdr *hdr;
3142
3143 off = elf_tdata (abfd)->next_file_pos;
3144
3145 hdr = &elf_tdata (abfd)->symtab_hdr;
b34976b6 3146 off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE);
252b5132 3147
9ad5cbcf
AM		 3148 hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
3149 if (hdr->sh_size != 0)
b34976b6 3150 off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE);
9ad5cbcf 3151
252b5132 3152 hdr = &elf_tdata (abfd)->strtab_hdr;
b34976b6 3153 off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE);
252b5132
RH		 3154
3155 elf_tdata (abfd)->next_file_pos = off;
3156
3157 /* Now that we know where the .strtab section goes, write it
3158 out. */
3159 if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0
3160 || ! _bfd_stringtab_emit (abfd, strtab))
b34976b6 3161 return FALSE;
252b5132
RH		 3162 _bfd_stringtab_free (strtab);
3163 }
3164
b34976b6 3165 abfd->output_has_begun = TRUE;
252b5132 3166
b34976b6 3167 return TRUE;
252b5132
RH		 3168}
3169
3170/* Create a mapping from a set of sections to a program segment. */
3171
3172static INLINE struct elf_segment_map *
3173make_mapping (abfd, sections, from, to, phdr)
3174 bfd *abfd;
3175 asection **sections;
3176 unsigned int from;
3177 unsigned int to;
b34976b6 3178 bfd_boolean phdr;
252b5132
RH		 3179{
3180 struct elf_segment_map *m;
3181 unsigned int i;
3182 asection **hdrpp;
dc810e39 3183 bfd_size_type amt;
252b5132 3184
dc810e39
AM		 3185 amt = sizeof (struct elf_segment_map);
3186 amt += (to - from - 1) * sizeof (asection *);
3187 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH		 3188 if (m == NULL)
3189 return NULL;
3190 m->next = NULL;
3191 m->p_type = PT_LOAD;
3192 for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++)
3193 m->sections[i - from] = *hdrpp;
3194 m->count = to - from;
3195
3196 if (from == 0 && phdr)
3197 {
3198 /* Include the headers in the first PT_LOAD segment. */
3199 m->includes_filehdr = 1;
3200 m->includes_phdrs = 1;
3201 }
3202
3203 return m;
3204}
3205
3206/* Set up a mapping from BFD sections to program segments. */
3207
b34976b6 3208static bfd_boolean
252b5132
RH		 3209map_sections_to_segments (abfd)
3210 bfd *abfd;
3211{
3212 asection **sections = NULL;
3213 asection *s;
3214 unsigned int i;
3215 unsigned int count;
3216 struct elf_segment_map *mfirst;
3217 struct elf_segment_map **pm;
3218 struct elf_segment_map *m;
3219 asection *last_hdr;
3220 unsigned int phdr_index;
3221 bfd_vma maxpagesize;
3222 asection **hdrpp;
b34976b6
AM		 3223 bfd_boolean phdr_in_segment = TRUE;
3224 bfd_boolean writable;
13ae64f3
JJ		 3225 int tls_count = 0;
3226 asection *first_tls = NULL;
65765700 3227 asection *dynsec, *eh_frame_hdr;
dc810e39 3228 bfd_size_type amt;
252b5132
RH		 3229
3230 if (elf_tdata (abfd)->segment_map != NULL)
b34976b6 3231 return TRUE;
252b5132
RH		 3232
3233 if (bfd_count_sections (abfd) == 0)
b34976b6 3234 return TRUE;
252b5132
RH		 3235
3236 /* Select the allocated sections, and sort them. */
3237
dc810e39
AM		 3238 amt = bfd_count_sections (abfd) * sizeof (asection *);
3239 sections = (asection **) bfd_malloc (amt);
252b5132
RH		 3240 if (sections == NULL)
3241 goto error_return;
3242
3243 i = 0;
3244 for (s = abfd->sections; s != NULL; s = s->next)
3245 {
3246 if ((s->flags & SEC_ALLOC) != 0)
3247 {
3248 sections[i] = s;
3249 ++i;
3250 }
3251 }
3252 BFD_ASSERT (i <= bfd_count_sections (abfd));
3253 count = i;
3254
3255 qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections);
3256
3257 /* Build the mapping. */
3258
3259 mfirst = NULL;
3260 pm = &mfirst;
3261
3262 /* If we have a .interp section, then create a PT_PHDR segment for
3263 the program headers and a PT_INTERP segment for the .interp
3264 section. */
3265 s = bfd_get_section_by_name (abfd, ".interp");
3266 if (s != NULL && (s->flags & SEC_LOAD) != 0)
3267 {
dc810e39
AM		 3268 amt = sizeof (struct elf_segment_map);
3269 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH		 3270 if (m == NULL)
3271 goto error_return;
3272 m->next = NULL;
3273 m->p_type = PT_PHDR;
3274 /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */
3275 m->p_flags = PF_R | PF_X;
3276 m->p_flags_valid = 1;
3277 m->includes_phdrs = 1;
3278
3279 *pm = m;
3280 pm = &m->next;
3281
dc810e39
AM		 3282 amt = sizeof (struct elf_segment_map);
3283 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH		 3284 if (m == NULL)
3285 goto error_return;
3286 m->next = NULL;
3287 m->p_type = PT_INTERP;
3288 m->count = 1;
3289 m->sections[0] = s;
3290
3291 *pm = m;
3292 pm = &m->next;
3293 }
3294
3295 /* Look through the sections. We put sections in the same program
3296 segment when the start of the second section can be placed within
3297 a few bytes of the end of the first section. */
3298 last_hdr = NULL;
3299 phdr_index = 0;
3300 maxpagesize = get_elf_backend_data (abfd)->maxpagesize;
b34976b6 3301 writable = FALSE;
252b5132
RH		 3302 dynsec = bfd_get_section_by_name (abfd, ".dynamic");
3303 if (dynsec != NULL
3304 && (dynsec->flags & SEC_LOAD) == 0)
3305 dynsec = NULL;
3306
3307 /* Deal with -Ttext or something similar such that the first section
3308 is not adjacent to the program headers. This is an
3309 approximation, since at this point we don't know exactly how many
3310 program headers we will need. */
3311 if (count > 0)
3312 {
3313 bfd_size_type phdr_size;
3314
3315 phdr_size = elf_tdata (abfd)->program_header_size;
3316 if (phdr_size == 0)
3317 phdr_size = get_elf_backend_data (abfd)->s->sizeof_phdr;
3318 if ((abfd->flags & D_PAGED) == 0
3319 || sections[0]->lma < phdr_size
3320 || sections[0]->lma % maxpagesize < phdr_size % maxpagesize)
b34976b6 3321 phdr_in_segment = FALSE;
252b5132
RH		 3322 }
3323
3324 for (i = 0, hdrpp = sections; i < count; i++, hdrpp++)
3325 {
3326 asection *hdr;
b34976b6 3327 bfd_boolean new_segment;
252b5132
RH		 3328
3329 hdr = *hdrpp;
3330
3331 /* See if this section and the last one will fit in the same
3332 segment. */
3333
3334 if (last_hdr == NULL)
3335 {
3336 /* If we don't have a segment yet, then we don't need a new
3337 one (we build the last one after this loop). */
b34976b6 3338 new_segment = FALSE;
252b5132
RH		 3339 }
3340 else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma)
3341 {
3342 /* If this section has a different relation between the
3343 virtual address and the load address, then we need a new
3344 segment. */
b34976b6 3345 new_segment = TRUE;
252b5132
RH		 3346 }
3347 else if (BFD_ALIGN (last_hdr->lma + last_hdr->_raw_size, maxpagesize)
3348 < BFD_ALIGN (hdr->lma, maxpagesize))
3349 {
3350 /* If putting this section in this segment would force us to
3351 skip a page in the segment, then we need a new segment. */
b34976b6 3352 new_segment = TRUE;
252b5132
RH		 3353 }
3354 else if ((last_hdr->flags & SEC_LOAD) == 0
3355 && (hdr->flags & SEC_LOAD) != 0)
3356 {
3357 /* We don't want to put a loadable section after a
3358 nonloadable section in the same segment. */
b34976b6 3359 new_segment = TRUE;
252b5132
RH		 3360 }
3361 else if ((abfd->flags & D_PAGED) == 0)
3362 {
3363 /* If the file is not demand paged, which means that we
3364 don't require the sections to be correctly aligned in the
3365 file, then there is no other reason for a new segment. */
b34976b6 3366 new_segment = FALSE;
252b5132
RH		 3367 }
3368 else if (! writable
3369 && (hdr->flags & SEC_READONLY) == 0
b89fe0ee
AM		 3370 && (((last_hdr->lma + last_hdr->_raw_size - 1)
3371 & ~(maxpagesize - 1))
3372 != (hdr->lma & ~(maxpagesize - 1))))
252b5132
RH		 3373 {
3374 /* We don't want to put a writable section in a read only
3375 segment, unless they are on the same page in memory
3376 anyhow. We already know that the last section does not
3377 bring us past the current section on the page, so the
3378 only case in which the new section is not on the same
3379 page as the previous section is when the previous section
3380 ends precisely on a page boundary. */
b34976b6 3381 new_segment = TRUE;
252b5132
RH		 3382 }
3383 else
3384 {
3385 /* Otherwise, we can use the same segment. */
b34976b6 3386 new_segment = FALSE;
252b5132
RH		 3387 }
3388
3389 if (! new_segment)
3390 {
3391 if ((hdr->flags & SEC_READONLY) == 0)
b34976b6 3392 writable = TRUE;
252b5132
RH		 3393 last_hdr = hdr;
3394 continue;
3395 }
3396
3397 /* We need a new program segment. We must create a new program
3398 header holding all the sections from phdr_index until hdr. */
3399
3400 m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment);
3401 if (m == NULL)
3402 goto error_return;
3403
3404 *pm = m;
3405 pm = &m->next;
3406
3407 if ((hdr->flags & SEC_READONLY) == 0)
b34976b6 3408 writable = TRUE;
252b5132 3409 else
b34976b6 3410 writable = FALSE;
252b5132
RH		 3411
3412 last_hdr = hdr;
3413 phdr_index = i;
b34976b6 3414 phdr_in_segment = FALSE;
252b5132
RH		 3415 }
3416
3417 /* Create a final PT_LOAD program segment. */
3418 if (last_hdr != NULL)
3419 {
3420 m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment);
3421 if (m == NULL)
3422 goto error_return;
3423
3424 *pm = m;
3425 pm = &m->next;
3426 }
3427
3428 /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */
3429 if (dynsec != NULL)
3430 {
dc810e39
AM		 3431 amt = sizeof (struct elf_segment_map);
3432 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH		 3433 if (m == NULL)
3434 goto error_return;
3435 m->next = NULL;
3436 m->p_type = PT_DYNAMIC;
3437 m->count = 1;
3438 m->sections[0] = dynsec;
3439
3440 *pm = m;
3441 pm = &m->next;
3442 }
3443
3444 /* For each loadable .note section, add a PT_NOTE segment. We don't
3445 use bfd_get_section_by_name, because if we link together
3446 nonloadable .note sections and loadable .note sections, we will
3447 generate two .note sections in the output file. FIXME: Using
3448 names for section types is bogus anyhow. */
3449 for (s = abfd->sections; s != NULL; s = s->next)
3450 {
3451 if ((s->flags & SEC_LOAD) != 0
3452 && strncmp (s->name, ".note", 5) == 0)
3453 {
dc810e39
AM		 3454 amt = sizeof (struct elf_segment_map);
3455 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH		 3456 if (m == NULL)
3457 goto error_return;
3458 m->next = NULL;
3459 m->p_type = PT_NOTE;
3460 m->count = 1;
3461 m->sections[0] = s;
3462
3463 *pm = m;
3464 pm = &m->next;
3465 }
13ae64f3
JJ		 3466 if (s->flags & SEC_THREAD_LOCAL)
3467 {
3468 if (! tls_count)
3469 first_tls = s;
3470 tls_count++;
3471 }
3472 }
3473
3474 /* If there are any SHF_TLS output sections, add PT_TLS segment. */
3475 if (tls_count > 0)
3476 {
3477 int i;
3478
3479 amt = sizeof (struct elf_segment_map);
3480 amt += (tls_count - 1) * sizeof (asection *);
3481 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
3482 if (m == NULL)
3483 goto error_return;
3484 m->next = NULL;
3485 m->p_type = PT_TLS;
3486 m->count = tls_count;
3487 /* Mandated PF_R. */
3488 m->p_flags = PF_R;
3489 m->p_flags_valid = 1;
3490 for (i = 0; i < tls_count; ++i)
3491 {
3492 BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL);
3493 m->sections[i] = first_tls;
3494 first_tls = first_tls->next;
3495 }
3496
3497 *pm = m;
3498 pm = &m->next;
252b5132
RH		 3499 }
3500
65765700
JJ		 3501 /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME
3502 segment. */
126495ed
AM		 3503 eh_frame_hdr = elf_tdata (abfd)->eh_frame_hdr;
3504 if (eh_frame_hdr != NULL
3505 && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0)
65765700
JJ		 3506 {
3507 amt = sizeof (struct elf_segment_map);
3508 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
3509 if (m == NULL)
3510 goto error_return;
3511 m->next = NULL;
3512 m->p_type = PT_GNU_EH_FRAME;
3513 m->count = 1;
126495ed 3514 m->sections[0] = eh_frame_hdr->output_section;
65765700
JJ		 3515
3516 *pm = m;
3517 pm = &m->next;
3518 }
3519
9ee5e499
JJ		 3520 if (elf_tdata (abfd)->stack_flags)
3521 {
3522 amt = sizeof (struct elf_segment_map);
3523 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
3524 if (m == NULL)
3525 goto error_return;
3526 m->next = NULL;
3527 m->p_type = PT_GNU_STACK;
3528 m->p_flags = elf_tdata (abfd)->stack_flags;
3529 m->p_flags_valid = 1;
3530
3531 *pm = m;
3532 pm = &m->next;
3533 }
3534
252b5132
RH		 3535 free (sections);
3536 sections = NULL;
3537
3538 elf_tdata (abfd)->segment_map = mfirst;
b34976b6 3539 return TRUE;
252b5132
RH		 3540
3541 error_return:
3542 if (sections != NULL)
3543 free (sections);
b34976b6 3544 return FALSE;
252b5132
RH		 3545}
3546
3547/* Sort sections by address. */
3548
3549static int
3550elf_sort_sections (arg1, arg2)
3551 const PTR arg1;
3552 const PTR arg2;
3553{
3554 const asection *sec1 = *(const asection **) arg1;
3555 const asection *sec2 = *(const asection **) arg2;
eecdbe52 3556 bfd_size_type size1, size2;
252b5132
RH		 3557
3558 /* Sort by LMA first, since this is the address used to
3559 place the section into a segment. */
3560 if (sec1->lma < sec2->lma)
3561 return -1;
3562 else if (sec1->lma > sec2->lma)
3563 return 1;
3564
3565 /* Then sort by VMA. Normally the LMA and the VMA will be
3566 the same, and this will do nothing. */
3567 if (sec1->vma < sec2->vma)
3568 return -1;
3569 else if (sec1->vma > sec2->vma)
3570 return 1;
3571
3572 /* Put !SEC_LOAD sections after SEC_LOAD ones. */
3573
07c6e936 3574#define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0)
252b5132
RH		 3575
3576 if (TOEND (sec1))
3577 {
3578 if (TOEND (sec2))
00a7cdc5
NC		 3579 {
3580 /* If the indicies are the same, do not return 0
3581 here, but continue to try the next comparison. */
3582 if (sec1->target_index - sec2->target_index != 0)
3583 return sec1->target_index - sec2->target_index;
3584 }
252b5132
RH		 3585 else
3586 return 1;
3587 }
00a7cdc5 3588 else if (TOEND (sec2))
252b5132
RH		 3589 return -1;
3590
3591#undef TOEND
3592
00a7cdc5
NC		 3593 /* Sort by size, to put zero sized sections
3594 before others at the same address. */
252b5132 3595
eecdbe52
JJ		 3596 size1 = (sec1->flags & SEC_LOAD) ? sec1->_raw_size : 0;
3597 size2 = (sec2->flags & SEC_LOAD) ? sec2->_raw_size : 0;
3598
3599 if (size1 < size2)
252b5132 3600 return -1;
eecdbe52 3601 if (size1 > size2)
252b5132
RH		 3602 return 1;
3603
3604 return sec1->target_index - sec2->target_index;
3605}
3606
3607/* Assign file positions to the sections based on the mapping from
3608 sections to segments. This function also sets up some fields in
3609 the file header, and writes out the program headers. */
3610
b34976b6 3611static bfd_boolean
252b5132
RH		 3612assign_file_positions_for_segments (abfd)
3613 bfd *abfd;
3614{
3615 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3616 unsigned int count;
3617 struct elf_segment_map *m;
3618 unsigned int alloc;
3619 Elf_Internal_Phdr *phdrs;
3620 file_ptr off, voff;
3621 bfd_vma filehdr_vaddr, filehdr_paddr;
3622 bfd_vma phdrs_vaddr, phdrs_paddr;
3623 Elf_Internal_Phdr *p;
dc810e39 3624 bfd_size_type amt;
252b5132
RH		 3625
3626 if (elf_tdata (abfd)->segment_map == NULL)
3627 {
3628 if (! map_sections_to_segments (abfd))
b34976b6 3629 return FALSE;
252b5132 3630 }
1ed89aa9
NC		 3631 else
3632 {
3633 /* The placement algorithm assumes that non allocated sections are
3634 not in PT_LOAD segments. We ensure this here by removing such
3635 sections from the segment map. */
3636 for (m = elf_tdata (abfd)->segment_map;
3637 m != NULL;
3638 m = m->next)
3639 {
3640 unsigned int new_count;
3641 unsigned int i;
3642
3643 if (m->p_type != PT_LOAD)
3644 continue;
3645
3646 new_count = 0;
3647 for (i = 0; i < m->count; i ++)
3648 {
3649 if ((m->sections[i]->flags & SEC_ALLOC) != 0)
3650 {
47d9a591 3651 if (i != new_count)
1ed89aa9
NC		 3652 m->sections[new_count] = m->sections[i];
3653
3654 new_count ++;
3655 }
3656 }
3657
3658 if (new_count != m->count)
3659 m->count = new_count;
3660 }
3661 }
252b5132
RH		 3662
3663 if (bed->elf_backend_modify_segment_map)
3664 {
3665 if (! (*bed->elf_backend_modify_segment_map) (abfd))
b34976b6 3666 return FALSE;
252b5132
RH		 3667 }
3668
3669 count = 0;
3670 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
3671 ++count;
3672
3673 elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr;
3674 elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr;
3675 elf_elfheader (abfd)->e_phnum = count;
3676
3677 if (count == 0)
b34976b6 3678 return TRUE;
252b5132
RH		 3679
3680 /* If we already counted the number of program segments, make sure
3681 that we allocated enough space. This happens when SIZEOF_HEADERS
3682 is used in a linker script. */
3683 alloc = elf_tdata (abfd)->program_header_size / bed->s->sizeof_phdr;
3684 if (alloc != 0 && count > alloc)
3685 {
3686 ((*_bfd_error_handler)
3687 (_("%s: Not enough room for program headers (allocated %u, need %u)"),
3688 bfd_get_filename (abfd), alloc, count));
3689 bfd_set_error (bfd_error_bad_value);
b34976b6 3690 return FALSE;
252b5132
RH		 3691 }
3692
3693 if (alloc == 0)
3694 alloc = count;
3695
dc810e39
AM		 3696 amt = alloc * sizeof (Elf_Internal_Phdr);
3697 phdrs = (Elf_Internal_Phdr *) bfd_alloc (abfd, amt);
252b5132 3698 if (phdrs == NULL)
b34976b6 3699 return FALSE;
252b5132
RH		 3700
3701 off = bed->s->sizeof_ehdr;
3702 off += alloc * bed->s->sizeof_phdr;
3703
3704 filehdr_vaddr = 0;
3705 filehdr_paddr = 0;
3706 phdrs_vaddr = 0;
3707 phdrs_paddr = 0;
3708
3709 for (m = elf_tdata (abfd)->segment_map, p = phdrs;
3710 m != NULL;
3711 m = m->next, p++)
3712 {
3713 unsigned int i;
3714 asection **secpp;
3715
3716 /* If elf_segment_map is not from map_sections_to_segments, the
47d9a591 3717 sections may not be correctly ordered. NOTE: sorting should
52e9b619
MS		 3718 not be done to the PT_NOTE section of a corefile, which may
3719 contain several pseudo-sections artificially created by bfd.
3720 Sorting these pseudo-sections breaks things badly. */
47d9a591
AM		 3721 if (m->count > 1
3722 && !(elf_elfheader (abfd)->e_type == ET_CORE
52e9b619 3723 && m->p_type == PT_NOTE))
252b5132
RH		 3724 qsort (m->sections, (size_t) m->count, sizeof (asection *),
3725 elf_sort_sections);
3726
3727 p->p_type = m->p_type;
28a7f3e7 3728 p->p_flags = m->p_flags;
252b5132
RH		 3729
3730 if (p->p_type == PT_LOAD
3731 && m->count > 0
3732 && (m->sections[0]->flags & SEC_ALLOC) != 0)
3733 {
3734 if ((abfd->flags & D_PAGED) != 0)
3735 off += (m->sections[0]->vma - off) % bed->maxpagesize;
3736 else
3737 {
3738 bfd_size_type align;
3739
3740 align = 0;
3741 for (i = 0, secpp = m->sections; i < m->count; i++, secpp++)
3742 {
3743 bfd_size_type secalign;
3744
3745 secalign = bfd_get_section_alignment (abfd, *secpp);
3746 if (secalign > align)
3747 align = secalign;
3748 }
3749
3750 off += (m->sections[0]->vma - off) % (1 << align);
3751 }
3752 }
3753
3754 if (m->count == 0)
3755 p->p_vaddr = 0;
3756 else
3757 p->p_vaddr = m->sections[0]->vma;
3758
3759 if (m->p_paddr_valid)
3760 p->p_paddr = m->p_paddr;
3761 else if (m->count == 0)
3762 p->p_paddr = 0;
3763 else
3764 p->p_paddr = m->sections[0]->lma;
3765
3766 if (p->p_type == PT_LOAD
3767 && (abfd->flags & D_PAGED) != 0)
3768 p->p_align = bed->maxpagesize;
3769 else if (m->count == 0)
45d6a902 3770 p->p_align = 1 << bed->s->log_file_align;
252b5132
RH		 3771 else
3772 p->p_align = 0;
3773
3774 p->p_offset = 0;
3775 p->p_filesz = 0;
3776 p->p_memsz = 0;
3777
3778 if (m->includes_filehdr)
3779 {
3780 if (! m->p_flags_valid)
3781 p->p_flags |= PF_R;
3782 p->p_offset = 0;
3783 p->p_filesz = bed->s->sizeof_ehdr;
3784 p->p_memsz = bed->s->sizeof_ehdr;
3785 if (m->count > 0)
3786 {
3787 BFD_ASSERT (p->p_type == PT_LOAD);
3788
3789 if (p->p_vaddr < (bfd_vma) off)
3790 {
caf47ea6
AM		 3791 (*_bfd_error_handler)
3792 (_("%s: Not enough room for program headers, try linking with -N"),
3793 bfd_get_filename (abfd));
252b5132 3794 bfd_set_error (bfd_error_bad_value);
b34976b6 3795 return FALSE;
252b5132
RH		 3796 }
3797
3798 p->p_vaddr -= off;
3799 if (! m->p_paddr_valid)
3800 p->p_paddr -= off;
3801 }
3802 if (p->p_type == PT_LOAD)
3803 {
3804 filehdr_vaddr = p->p_vaddr;
3805 filehdr_paddr = p->p_paddr;
3806 }
3807 }
3808
3809 if (m->includes_phdrs)
3810 {
3811 if (! m->p_flags_valid)
3812 p->p_flags |= PF_R;
3813
3814 if (m->includes_filehdr)
3815 {
3816 if (p->p_type == PT_LOAD)
3817 {
3818 phdrs_vaddr = p->p_vaddr + bed->s->sizeof_ehdr;
3819 phdrs_paddr = p->p_paddr + bed->s->sizeof_ehdr;
3820 }
3821 }
3822 else
3823 {
3824 p->p_offset = bed->s->sizeof_ehdr;
3825
3826 if (m->count > 0)
3827 {
3828 BFD_ASSERT (p->p_type == PT_LOAD);
3829 p->p_vaddr -= off - p->p_offset;
3830 if (! m->p_paddr_valid)
3831 p->p_paddr -= off - p->p_offset;
3832 }
3833
3834 if (p->p_type == PT_LOAD)
3835 {
3836 phdrs_vaddr = p->p_vaddr;
3837 phdrs_paddr = p->p_paddr;
3838 }
3839 else
3840 phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr;
3841 }
3842
3843 p->p_filesz += alloc * bed->s->sizeof_phdr;
3844 p->p_memsz += alloc * bed->s->sizeof_phdr;
3845 }
3846
3847 if (p->p_type == PT_LOAD
3848 || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core))
3849 {
3850 if (! m->includes_filehdr && ! m->includes_phdrs)
3851 p->p_offset = off;
3852 else
3853 {
3854 file_ptr adjust;
3855
3856 adjust = off - (p->p_offset + p->p_filesz);
3857 p->p_filesz += adjust;
3858 p->p_memsz += adjust;
3859 }
3860 }
3861
3862 voff = off;
3863
3864 for (i = 0, secpp = m->sections; i < m->count; i++, secpp++)
3865 {
3866 asection *sec;
3867 flagword flags;
3868 bfd_size_type align;
3869
3870 sec = *secpp;
3871 flags = sec->flags;
3872 align = 1 << bfd_get_section_alignment (abfd, sec);
3873
3874 /* The section may have artificial alignment forced by a
3875 link script. Notice this case by the gap between the
f5ffc919
NC		 3876 cumulative phdr lma and the section's lma. */
3877 if (p->p_paddr + p->p_memsz < sec->lma)
252b5132 3878 {
f5ffc919 3879 bfd_vma adjust = sec->lma - (p->p_paddr + p->p_memsz);
252b5132
RH		 3880
3881 p->p_memsz += adjust;
eecdbe52
JJ		 3882 if (p->p_type == PT_LOAD
3883 || (p->p_type == PT_NOTE
3884 && bfd_get_format (abfd) == bfd_core))
3885 {
3886 off += adjust;
3887 voff += adjust;
3888 }
3889 if ((flags & SEC_LOAD) != 0
3890 || (flags & SEC_THREAD_LOCAL) != 0)
252b5132
RH		 3891 p->p_filesz += adjust;
3892 }
3893
3894 if (p->p_type == PT_LOAD)
3895 {
3896 bfd_signed_vma adjust;
3897
3898 if ((flags & SEC_LOAD) != 0)
3899 {
3900 adjust = sec->lma - (p->p_paddr + p->p_memsz);
3901 if (adjust < 0)
3902 adjust = 0;
3903 }
3904 else if ((flags & SEC_ALLOC) != 0)
3905 {
3906 /* The section VMA must equal the file position
3907 modulo the page size. FIXME: I'm not sure if
3908 this adjustment is really necessary. We used to
3909 not have the SEC_LOAD case just above, and then
3910 this was necessary, but now I'm not sure. */
3911 if ((abfd->flags & D_PAGED) != 0)
3912 adjust = (sec->vma - voff) % bed->maxpagesize;
3913 else
3914 adjust = (sec->vma - voff) % align;
3915 }
3916 else
3917 adjust = 0;
3918
3919 if (adjust != 0)
3920 {
3921 if (i == 0)
3922 {
cdc7c09f
NC		 3923 (* _bfd_error_handler) (_("\
3924Error: First section in segment (%s) starts at 0x%x whereas the segment starts at 0x%x"),
3925 bfd_section_name (abfd, sec),
3926 sec->lma,
3927 p->p_paddr);
b34976b6 3928 return FALSE;
252b5132
RH		 3929 }
3930 p->p_memsz += adjust;
3931 off += adjust;
3932 voff += adjust;
3933 if ((flags & SEC_LOAD) != 0)
3934 p->p_filesz += adjust;
3935 }
3936
3937 sec->filepos = off;
3938
3939 /* We check SEC_HAS_CONTENTS here because if NOLOAD is
3940 used in a linker script we may have a section with
3941 SEC_LOAD clear but which is supposed to have
3942 contents. */
3943 if ((flags & SEC_LOAD) != 0
3944 || (flags & SEC_HAS_CONTENTS) != 0)
3945 off += sec->_raw_size;
3946
eecdbe52
JJ		 3947 if ((flags & SEC_ALLOC) != 0
3948 && ((flags & SEC_LOAD) != 0
3949 || (flags & SEC_THREAD_LOCAL) == 0))
252b5132
RH		 3950 voff += sec->_raw_size;
3951 }
3952
3953 if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)
3954 {
4a938328
MS		 3955 /* The actual "note" segment has i == 0.
3956 This is the one that actually contains everything. */
3957 if (i == 0)
3958 {
252b5132
RH		 3959 sec->filepos = off;
3960 p->p_filesz = sec->_raw_size;
3961 off += sec->_raw_size;
3962 voff = off;
3963 }
4a938328 3964 else
252b5132 3965 {
4a938328 3966 /* Fake sections -- don't need to be written. */
252b5132
RH		 3967 sec->filepos = 0;
3968 sec->_raw_size = 0;
4a938328 3969 flags = sec->flags = 0;
252b5132
RH		 3970 }
3971 p->p_memsz = 0;
3972 p->p_align = 1;
3973 }
3974 else
3975 {
eecdbe52
JJ		 3976 if ((sec->flags & SEC_LOAD) != 0
3977 || (sec->flags & SEC_THREAD_LOCAL) == 0
3978 || p->p_type == PT_TLS)
252b5132
RH		 3979 p->p_memsz += sec->_raw_size;
3980
3981 if ((flags & SEC_LOAD) != 0)
3982 p->p_filesz += sec->_raw_size;
3983
13ae64f3
JJ		 3984 if (p->p_type == PT_TLS
3985 && sec->_raw_size == 0
3986 && (sec->flags & SEC_HAS_CONTENTS) == 0)
3987 {
3988 struct bfd_link_order *o;
3989 bfd_vma tbss_size = 0;
3990
3991 for (o = sec->link_order_head; o != NULL; o = o->next)
3992 if (tbss_size < o->offset + o->size)
3993 tbss_size = o->offset + o->size;
3994
3995 p->p_memsz += tbss_size;
3996 }
3997
252b5132
RH		 3998 if (align > p->p_align
3999 && (p->p_type != PT_LOAD || (abfd->flags & D_PAGED) == 0))
4000 p->p_align = align;
4001 }
4002
4003 if (! m->p_flags_valid)
4004 {
4005 p->p_flags |= PF_R;
4006 if ((flags & SEC_CODE) != 0)
4007 p->p_flags |= PF_X;
4008 if ((flags & SEC_READONLY) == 0)
4009 p->p_flags |= PF_W;
4010 }
4011 }
4012 }
4013
4014 /* Now that we have set the section file positions, we can set up
4015 the file positions for the non PT_LOAD segments. */
4016 for (m = elf_tdata (abfd)->segment_map, p = phdrs;
4017 m != NULL;
4018 m = m->next, p++)
4019 {
4020 if (p->p_type != PT_LOAD && m->count > 0)
4021 {
4022 BFD_ASSERT (! m->includes_filehdr && ! m->includes_phdrs);
4023 p->p_offset = m->sections[0]->filepos;
4024 }
4025 if (m->count == 0)
4026 {
4027 if (m->includes_filehdr)
4028 {
4029 p->p_vaddr = filehdr_vaddr;
4030 if (! m->p_paddr_valid)
4031 p->p_paddr = filehdr_paddr;
4032 }
4033 else if (m->includes_phdrs)
4034 {
4035 p->p_vaddr = phdrs_vaddr;
4036 if (! m->p_paddr_valid)
4037 p->p_paddr = phdrs_paddr;
4038 }
4039 }
4040 }
4041
4042 /* Clear out any program headers we allocated but did not use. */
4043 for (; count < alloc; count++, p++)
4044 {
4045 memset (p, 0, sizeof *p);
4046 p->p_type = PT_NULL;
4047 }
4048
4049 elf_tdata (abfd)->phdr = phdrs;
4050
4051 elf_tdata (abfd)->next_file_pos = off;
4052
4053 /* Write out the program headers. */
dc810e39 4054 if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0
252b5132 4055 || bed->s->write_out_phdrs (abfd, phdrs, alloc) != 0)
b34976b6 4056 return FALSE;
252b5132 4057
b34976b6 4058 return TRUE;
252b5132
RH		 4059}
4060
4061/* Get the size of the program header.
4062
4063 If this is called by the linker before any of the section VMA's are set, it
4064 can't calculate the correct value for a strange memory layout. This only
4065 happens when SIZEOF_HEADERS is used in a linker script. In this case,
4066 SORTED_HDRS is NULL and we assume the normal scenario of one text and one
4067 data segment (exclusive of .interp and .dynamic).
4068
4069 ??? User written scripts must either not use SIZEOF_HEADERS, or assume there
4070 will be two segments. */
4071
4072static bfd_size_type
4073get_program_header_size (abfd)
4074 bfd *abfd;
4075{
4076 size_t segs;
4077 asection *s;
4078 struct elf_backend_data *bed = get_elf_backend_data (abfd);
4079
4080 /* We can't return a different result each time we're called. */
4081 if (elf_tdata (abfd)->program_header_size != 0)
4082 return elf_tdata (abfd)->program_header_size;
4083
4084 if (elf_tdata (abfd)->segment_map != NULL)
4085 {
4086 struct elf_segment_map *m;
4087
4088 segs = 0;
4089 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
4090 ++segs;
4091 elf_tdata (abfd)->program_header_size = segs * bed->s->sizeof_phdr;
4092 return elf_tdata (abfd)->program_header_size;
4093 }
4094
4095 /* Assume we will need exactly two PT_LOAD segments: one for text
4096 and one for data. */
4097 segs = 2;
4098
4099 s = bfd_get_section_by_name (abfd, ".interp");
4100 if (s != NULL && (s->flags & SEC_LOAD) != 0)
4101 {
4102 /* If we have a loadable interpreter section, we need a
4103 PT_INTERP segment. In this case, assume we also need a
ab3acfbe 4104 PT_PHDR segment, although that may not be true for all
252b5132
RH		 4105 targets. */
4106 segs += 2;
4107 }
4108
4109 if (bfd_get_section_by_name (abfd, ".dynamic") != NULL)
4110 {
4111 /* We need a PT_DYNAMIC segment. */
4112 ++segs;
4113 }
4114
126495ed 4115 if (elf_tdata (abfd)->eh_frame_hdr)
65765700
JJ		 4116 {
4117 /* We need a PT_GNU_EH_FRAME segment. */
4118 ++segs;
4119 }
4120
9ee5e499
JJ		 4121 if (elf_tdata (abfd)->stack_flags)
4122 {
4123 /* We need a PT_GNU_STACK segment. */
4124 ++segs;
4125 }
4126
252b5132
RH		 4127 for (s = abfd->sections; s != NULL; s = s->next)
4128 {
4129 if ((s->flags & SEC_LOAD) != 0
4130 && strncmp (s->name, ".note", 5) == 0)
4131 {
4132 /* We need a PT_NOTE segment. */
4133 ++segs;
4134 }
4135 }
4136
13ae64f3
JJ		 4137 for (s = abfd->sections; s != NULL; s = s->next)
4138 {
4139 if (s->flags & SEC_THREAD_LOCAL)
4140 {
4141 /* We need a PT_TLS segment. */
4142 ++segs;
4143 break;
4144 }
4145 }
4146
252b5132
RH		 4147 /* Let the backend count up any program headers it might need. */
4148 if (bed->elf_backend_additional_program_headers)
4149 {
4150 int a;
4151
4152 a = (*bed->elf_backend_additional_program_headers) (abfd);
4153 if (a == -1)
4154 abort ();
4155 segs += a;
4156 }
4157
4158 elf_tdata (abfd)->program_header_size = segs * bed->s->sizeof_phdr;
4159 return elf_tdata (abfd)->program_header_size;
4160}
4161
4162/* Work out the file positions of all the sections. This is called by
4163 _bfd_elf_compute_section_file_positions. All the section sizes and
4164 VMAs must be known before this is called.
4165
4166 We do not consider reloc sections at this point, unless they form
4167 part of the loadable image. Reloc sections are assigned file
4168 positions in assign_file_positions_for_relocs, which is called by
4169 write_object_contents and final_link.
4170
4171 We also don't set the positions of the .symtab and .strtab here. */
4172
b34976b6 4173static bfd_boolean
252b5132
RH		 4174assign_file_positions_except_relocs (abfd)
4175 bfd *abfd;
4176{
4177 struct elf_obj_tdata * const tdata = elf_tdata (abfd);
4178 Elf_Internal_Ehdr * const i_ehdrp = elf_elfheader (abfd);
4179 Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd);
9ad5cbcf 4180 unsigned int num_sec = elf_numsections (abfd);
252b5132
RH		 4181 file_ptr off;
4182 struct elf_backend_data *bed = get_elf_backend_data (abfd);
4183
4184 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4185 && bfd_get_format (abfd) != bfd_core)
4186 {
4187 Elf_Internal_Shdr **hdrpp;
4188 unsigned int i;
4189
4190 /* Start after the ELF header. */
4191 off = i_ehdrp->e_ehsize;
4192
4193 /* We are not creating an executable, which means that we are
4194 not creating a program header, and that the actual order of
4195 the sections in the file is unimportant. */
9ad5cbcf 4196 for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++)
252b5132
RH		 4197 {
4198 Elf_Internal_Shdr *hdr;
4199
4200 hdr = *hdrpp;
9ad5cbcf
AM		 4201 if (hdr->sh_type == SHT_REL
4202 || hdr->sh_type == SHT_RELA
4203 || i == tdata->symtab_section
4204 || i == tdata->symtab_shndx_section
252b5132
RH		 4205 || i == tdata->strtab_section)
4206 {
4207 hdr->sh_offset = -1;
252b5132 4208 }
9ad5cbcf 4209 else
b34976b6 4210 off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE);
252b5132 4211
9ad5cbcf
AM		 4212 if (i == SHN_LORESERVE - 1)
4213 {
4214 i += SHN_HIRESERVE + 1 - SHN_LORESERVE;
4215 hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE;
4216 }
252b5132
RH		 4217 }
4218 }
4219 else
4220 {
4221 unsigned int i;
4222 Elf_Internal_Shdr **hdrpp;
4223
4224 /* Assign file positions for the loaded sections based on the
4225 assignment of sections to segments. */
4226 if (! assign_file_positions_for_segments (abfd))
b34976b6 4227 return FALSE;
252b5132
RH		 4228
4229 /* Assign file positions for the other sections. */
4230
4231 off = elf_tdata (abfd)->next_file_pos;
9ad5cbcf 4232 for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++)
252b5132
RH		 4233 {
4234 Elf_Internal_Shdr *hdr;
4235
4236 hdr = *hdrpp;
4237 if (hdr->bfd_section != NULL
4238 && hdr->bfd_section->filepos != 0)
4239 hdr->sh_offset = hdr->bfd_section->filepos;
4240 else if ((hdr->sh_flags & SHF_ALLOC) != 0)
4241 {
4242 ((*_bfd_error_handler)
4243 (_("%s: warning: allocated section `%s' not in segment"),
4244 bfd_get_filename (abfd),
4245 (hdr->bfd_section == NULL
4246 ? "*unknown*"
4247 : hdr->bfd_section->name)));
4248 if ((abfd->flags & D_PAGED) != 0)
4249 off += (hdr->sh_addr - off) % bed->maxpagesize;
4250 else
4251 off += (hdr->sh_addr - off) % hdr->sh_addralign;
4252 off = _bfd_elf_assign_file_position_for_section (hdr, off,
b34976b6 4253 FALSE);
252b5132
RH		 4254 }
4255 else if (hdr->sh_type == SHT_REL
4256 || hdr->sh_type == SHT_RELA
4257 || hdr == i_shdrpp[tdata->symtab_section]
9ad5cbcf 4258 || hdr == i_shdrpp[tdata->symtab_shndx_section]
252b5132
RH		 4259 || hdr == i_shdrpp[tdata->strtab_section])
4260 hdr->sh_offset = -1;
4261 else
b34976b6 4262 off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE);
9ad5cbcf
AM		 4263
4264 if (i == SHN_LORESERVE - 1)
4265 {
4266 i += SHN_HIRESERVE + 1 - SHN_LORESERVE;
4267 hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE;
4268 }
252b5132
RH		 4269 }
4270 }
4271
4272 /* Place the section headers. */
45d6a902 4273 off = align_file_position (off, 1 << bed->s->log_file_align);
252b5132
RH		 4274 i_ehdrp->e_shoff = off;
4275 off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize;
4276
4277 elf_tdata (abfd)->next_file_pos = off;
4278
b34976b6 4279 return TRUE;
252b5132
RH		 4280}
4281
b34976b6 4282static bfd_boolean
252b5132
RH		 4283prep_headers (abfd)
4284 bfd *abfd;
4285{
4286 Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
4287 Elf_Internal_Phdr *i_phdrp = 0; /* Program header table, internal form */
4288 Elf_Internal_Shdr **i_shdrp; /* Section header table, internal form */
2b0f7ef9 4289 struct elf_strtab_hash *shstrtab;
252b5132
RH		 4290 struct elf_backend_data *bed = get_elf_backend_data (abfd);
4291
4292 i_ehdrp = elf_elfheader (abfd);
4293 i_shdrp = elf_elfsections (abfd);
4294
2b0f7ef9 4295 shstrtab = _bfd_elf_strtab_init ();
252b5132 4296 if (shstrtab == NULL)
b34976b6 4297 return FALSE;
252b5132
RH		 4298
4299 elf_shstrtab (abfd) = shstrtab;
4300
4301 i_ehdrp->e_ident[EI_MAG0] = ELFMAG0;
4302 i_ehdrp->e_ident[EI_MAG1] = ELFMAG1;
4303 i_ehdrp->e_ident[EI_MAG2] = ELFMAG2;
4304 i_ehdrp->e_ident[EI_MAG3] = ELFMAG3;
4305
4306 i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass;
4307 i_ehdrp->e_ident[EI_DATA] =
4308 bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB;
4309 i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current;
4310
252b5132
RH		 4311 if ((abfd->flags & DYNAMIC) != 0)
4312 i_ehdrp->e_type = ET_DYN;
4313 else if ((abfd->flags & EXEC_P) != 0)
4314 i_ehdrp->e_type = ET_EXEC;
4315 else if (bfd_get_format (abfd) == bfd_core)
4316 i_ehdrp->e_type = ET_CORE;
4317 else
4318 i_ehdrp->e_type = ET_REL;
4319
4320 switch (bfd_get_arch (abfd))
4321 {
4322 case bfd_arch_unknown:
4323 i_ehdrp->e_machine = EM_NONE;
4324 break;
aa4f99bb
AO		 4325
4326 /* There used to be a long list of cases here, each one setting
4327 e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE
4328 in the corresponding bfd definition. To avoid duplication,
4329 the switch was removed. Machines that need special handling
4330 can generally do it in elf_backend_final_write_processing(),
4331 unless they need the information earlier than the final write.
4332 Such need can generally be supplied by replacing the tests for
4333 e_machine with the conditions used to determine it. */
252b5132 4334 default:
aa4f99bb
AO		 4335 if (get_elf_backend_data (abfd) != NULL)
4336 i_ehdrp->e_machine = get_elf_backend_data (abfd)->elf_machine_code;
4337 else
4338 i_ehdrp->e_machine = EM_NONE;
4339 }
4340
252b5132
RH		 4341 i_ehdrp->e_version = bed->s->ev_current;
4342 i_ehdrp->e_ehsize = bed->s->sizeof_ehdr;
4343
c044fabd 4344 /* No program header, for now. */
252b5132
RH		 4345 i_ehdrp->e_phoff = 0;
4346 i_ehdrp->e_phentsize = 0;
4347 i_ehdrp->e_phnum = 0;
4348
c044fabd 4349 /* Each bfd section is section header entry. */
252b5132
RH		 4350 i_ehdrp->e_entry = bfd_get_start_address (abfd);
4351 i_ehdrp->e_shentsize = bed->s->sizeof_shdr;
4352
c044fabd 4353 /* If we're building an executable, we'll need a program header table. */
252b5132
RH		 4354 if (abfd->flags & EXEC_P)
4355 {
c044fabd 4356 /* It all happens later. */
252b5132
RH		 4357#if 0
4358 i_ehdrp->e_phentsize = sizeof (Elf_External_Phdr);
4359
4360 /* elf_build_phdrs() returns a (NULL-terminated) array of
c044fabd 4361 Elf_Internal_Phdrs. */
252b5132
RH		 4362 i_phdrp = elf_build_phdrs (abfd, i_ehdrp, i_shdrp, &i_ehdrp->e_phnum);
4363 i_ehdrp->e_phoff = outbase;
4364 outbase += i_ehdrp->e_phentsize * i_ehdrp->e_phnum;
4365#endif
4366 }
4367 else
4368 {
4369 i_ehdrp->e_phentsize = 0;
4370 i_phdrp = 0;
4371 i_ehdrp->e_phoff = 0;
4372 }
4373
4374 elf_tdata (abfd)->symtab_hdr.sh_name =
b34976b6 4375 (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE);
252b5132 4376 elf_tdata (abfd)->strtab_hdr.sh_name =
b34976b6 4377 (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE);
252b5132 4378 elf_tdata (abfd)->shstrtab_hdr.sh_name =
b34976b6 4379 (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE);
252b5132
RH		 4380 if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1
4381 || elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1
4382 || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1)
b34976b6 4383 return FALSE;
252b5132 4384
b34976b6 4385 return TRUE;
252b5132
RH		 4386}
4387
4388/* Assign file positions for all the reloc sections which are not part
4389 of the loadable file image. */
4390
4391void
4392_bfd_elf_assign_file_positions_for_relocs (abfd)
4393 bfd *abfd;
4394{
4395 file_ptr off;
9ad5cbcf 4396 unsigned int i, num_sec;
252b5132
RH		 4397 Elf_Internal_Shdr **shdrpp;
4398
4399 off = elf_tdata (abfd)->next_file_pos;
4400
9ad5cbcf
AM		 4401 num_sec = elf_numsections (abfd);
4402 for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++)
252b5132
RH		 4403 {
4404 Elf_Internal_Shdr *shdrp;
4405
4406 shdrp = *shdrpp;
4407 if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA)
4408 && shdrp->sh_offset == -1)
b34976b6 4409 off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE);
252b5132
RH		 4410 }
4411
4412 elf_tdata (abfd)->next_file_pos = off;
4413}
4414
b34976b6 4415bfd_boolean
252b5132
RH		 4416_bfd_elf_write_object_contents (abfd)
4417 bfd *abfd;
4418{
4419 struct elf_backend_data *bed = get_elf_backend_data (abfd);
4420 Elf_Internal_Ehdr *i_ehdrp;
4421 Elf_Internal_Shdr **i_shdrp;
b34976b6 4422 bfd_boolean failed;
9ad5cbcf 4423 unsigned int count, num_sec;
252b5132
RH		 4424
4425 if (! abfd->output_has_begun
4426 && ! _bfd_elf_compute_section_file_positions
4427 (abfd, (struct bfd_link_info *) NULL))
b34976b6 4428 return FALSE;
252b5132
RH		 4429
4430 i_shdrp = elf_elfsections (abfd);
4431 i_ehdrp = elf_elfheader (abfd);
4432
b34976b6 4433 failed = FALSE;
252b5132
RH		 4434 bfd_map_over_sections (abfd, bed->s->write_relocs, &failed);
4435 if (failed)
b34976b6 4436 return FALSE;
252b5132
RH		 4437
4438 _bfd_elf_assign_file_positions_for_relocs (abfd);
4439
c044fabd 4440 /* After writing the headers, we need to write the sections too... */
9ad5cbcf
AM		 4441 num_sec = elf_numsections (abfd);
4442 for (count = 1; count < num_sec; count++)
252b5132
RH		 4443 {
4444 if (bed->elf_backend_section_processing)
4445 (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]);
4446 if (i_shdrp[count]->contents)
4447 {
dc810e39
AM		 4448 bfd_size_type amt = i_shdrp[count]->sh_size;
4449
252b5132 4450 if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0
dc810e39 4451 || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt)
b34976b6 4452 return FALSE;
252b5132 4453 }
9ad5cbcf
AM		 4454 if (count == SHN_LORESERVE - 1)
4455 count += SHN_HIRESERVE + 1 - SHN_LORESERVE;
252b5132
RH		 4456 }
4457
4458 /* Write out the section header names. */
4459 if (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0
2b0f7ef9 4460 || ! _bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))
b34976b6 4461 return FALSE;
252b5132
RH		 4462
4463 if (bed->elf_backend_final_write_processing)
4464 (*bed->elf_backend_final_write_processing) (abfd,
4465 elf_tdata (abfd)->linker);
4466
4467 return bed->s->write_shdrs_and_ehdr (abfd);
4468}
4469
b34976b6 4470bfd_boolean
252b5132
RH		 4471_bfd_elf_write_corefile_contents (abfd)
4472 bfd *abfd;
4473{
c044fabd 4474 /* Hopefully this can be done just like an object file. */
252b5132
RH		 4475 return _bfd_elf_write_object_contents (abfd);
4476}
c044fabd
KH		 4477
4478/* Given a section, search the header to find them. */
4479
252b5132
RH		 4480int
4481_bfd_elf_section_from_bfd_section (abfd, asect)
4482 bfd *abfd;
4483 struct sec *asect;
4484{
af746e92 4485 struct elf_backend_data *bed;
252b5132 4486 int index;
252b5132 4487
9ad5cbcf
AM		 4488 if (elf_section_data (asect) != NULL
4489 && elf_section_data (asect)->this_idx != 0)
4490 return elf_section_data (asect)->this_idx;
4491
4492 if (bfd_is_abs_section (asect))
af746e92
AM		 4493 index = SHN_ABS;
4494 else if (bfd_is_com_section (asect))
4495 index = SHN_COMMON;
4496 else if (bfd_is_und_section (asect))
4497 index = SHN_UNDEF;
4498 else
252b5132 4499 {
af746e92
AM		 4500 Elf_Internal_Shdr **i_shdrp = elf_elfsections (abfd);
4501 int maxindex = elf_numsections (abfd);
4502
4503 for (index = 1; index < maxindex; index++)
4504 {
4505 Elf_Internal_Shdr *hdr = i_shdrp[index];
4506
4507 if (hdr != NULL && hdr->bfd_section == asect)
4508 return index;
4509 }
4510 index = -1;
252b5132
RH		 4511 }
4512
af746e92 4513 bed = get_elf_backend_data (abfd);
252b5132
RH		 4514 if (bed->elf_backend_section_from_bfd_section)
4515 {
af746e92 4516 int retval = index;
9ad5cbcf 4517
af746e92
AM		 4518 if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval))
4519 return retval;
252b5132
RH		 4520 }
4521
af746e92
AM		 4522 if (index == -1)
4523 bfd_set_error (bfd_error_nonrepresentable_section);
252b5132 4524
af746e92 4525 return index;
252b5132
RH		 4526}
4527
4528/* Given a BFD symbol, return the index in the ELF symbol table, or -1
4529 on error. */
4530
4531int
4532_bfd_elf_symbol_from_bfd_symbol (abfd, asym_ptr_ptr)
4533 bfd *abfd;
4534 asymbol **asym_ptr_ptr;
4535{
4536 asymbol *asym_ptr = *asym_ptr_ptr;
4537 int idx;
4538 flagword flags = asym_ptr->flags;
4539
4540 /* When gas creates relocations against local labels, it creates its
4541 own symbol for the section, but does put the symbol into the
4542 symbol chain, so udata is 0. When the linker is generating
4543 relocatable output, this section symbol may be for one of the
4544 input sections rather than the output section. */
4545 if (asym_ptr->udata.i == 0
4546 && (flags & BSF_SECTION_SYM)
4547 && asym_ptr->section)
4548 {
4549 int indx;
4550
4551 if (asym_ptr->section->output_section != NULL)
4552 indx = asym_ptr->section->output_section->index;
4553 else
4554 indx = asym_ptr->section->index;
4e89ac30
L		 4555 if (indx < elf_num_section_syms (abfd)
4556 && elf_section_syms (abfd)[indx] != NULL)
252b5132
RH		 4557 asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i;
4558 }
4559
4560 idx = asym_ptr->udata.i;
4561
4562 if (idx == 0)
4563 {
4564 /* This case can occur when using --strip-symbol on a symbol
4565 which is used in a relocation entry. */
4566 (*_bfd_error_handler)
4567 (_("%s: symbol `%s' required but not present"),
8f615d07 4568 bfd_archive_filename (abfd), bfd_asymbol_name (asym_ptr));
252b5132
RH		 4569 bfd_set_error (bfd_error_no_symbols);
4570 return -1;
4571 }
4572
4573#if DEBUG & 4
4574 {
4575 fprintf (stderr,
661a3fd4 4576 "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx%s\n",
252b5132
RH		 4577 (long) asym_ptr, asym_ptr->name, idx, flags,
4578 elf_symbol_flags (flags));
4579 fflush (stderr);
4580 }
4581#endif
4582
4583 return idx;
4584}
4585
4586/* Copy private BFD data. This copies any program header information. */
4587
b34976b6 4588static bfd_boolean
252b5132
RH		 4589copy_private_bfd_data (ibfd, obfd)
4590 bfd *ibfd;
4591 bfd *obfd;
4592{
b34976b6
AM		 4593 Elf_Internal_Ehdr *iehdr;
4594 struct elf_segment_map *map;
4595 struct elf_segment_map *map_first;
4596 struct elf_segment_map **pointer_to_map;
4597 Elf_Internal_Phdr *segment;
4598 asection *section;
4599 unsigned int i;
4600 unsigned int num_segments;
4601 bfd_boolean phdr_included = FALSE;
4602 bfd_vma maxpagesize;
4603 struct elf_segment_map *phdr_adjust_seg = NULL;
4604 unsigned int phdr_adjust_num = 0;
4605 struct elf_backend_data *bed;
bc67d8a6 4606
c044fabd 4607 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
252b5132 4608 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 4609 return TRUE;
252b5132
RH		 4610
4611 if (elf_tdata (ibfd)->phdr == NULL)
b34976b6 4612 return TRUE;
252b5132 4613
caf47ea6 4614 bed = get_elf_backend_data (ibfd);
252b5132
RH		 4615 iehdr = elf_elfheader (ibfd);
4616
bc67d8a6 4617 map_first = NULL;
c044fabd 4618 pointer_to_map = &map_first;
252b5132
RH		 4619
4620 num_segments = elf_elfheader (ibfd)->e_phnum;
bc67d8a6
NC		 4621 maxpagesize = get_elf_backend_data (obfd)->maxpagesize;
4622
4623 /* Returns the end address of the segment + 1. */
aecc8f8a
AM		 4624#define SEGMENT_END(segment, start) \
4625 (start + (segment->p_memsz > segment->p_filesz \
4626 ? segment->p_memsz : segment->p_filesz))
bc67d8a6 4627
eecdbe52
JJ		 4628#define SECTION_SIZE(section, segment) \
4629 (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \
4630 != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \
4631 ? section->_raw_size : 0)
4632
b34976b6 4633 /* Returns TRUE if the given section is contained within
bc67d8a6 4634 the given segment. VMA addresses are compared. */
aecc8f8a
AM		 4635#define IS_CONTAINED_BY_VMA(section, segment) \
4636 (section->vma >= segment->p_vaddr \
eecdbe52 4637 && (section->vma + SECTION_SIZE (section, segment) \
aecc8f8a 4638 <= (SEGMENT_END (segment, segment->p_vaddr))))
c044fabd 4639
b34976b6 4640 /* Returns TRUE if the given section is contained within
bc67d8a6 4641 the given segment. LMA addresses are compared. */
aecc8f8a
AM		 4642#define IS_CONTAINED_BY_LMA(section, segment, base) \
4643 (section->lma >= base \
eecdbe52 4644 && (section->lma + SECTION_SIZE (section, segment) \
aecc8f8a 4645 <= SEGMENT_END (segment, base)))
252b5132 4646
c044fabd 4647 /* Special case: corefile "NOTE" section containing regs, prpsinfo etc. */
aecc8f8a
AM		 4648#define IS_COREFILE_NOTE(p, s) \
4649 (p->p_type == PT_NOTE \
4650 && bfd_get_format (ibfd) == bfd_core \
4651 && s->vma == 0 && s->lma == 0 \
4652 && (bfd_vma) s->filepos >= p->p_offset \
4653 && ((bfd_vma) s->filepos + s->_raw_size \
4654 <= p->p_offset + p->p_filesz))
252b5132
RH		 4655
4656 /* The complicated case when p_vaddr is 0 is to handle the Solaris
4657 linker, which generates a PT_INTERP section with p_vaddr and
4658 p_memsz set to 0. */
aecc8f8a
AM		 4659#define IS_SOLARIS_PT_INTERP(p, s) \
4660 (p->p_vaddr == 0 \
4661 && p->p_paddr == 0 \
4662 && p->p_memsz == 0 \
4663 && p->p_filesz > 0 \
4664 && (s->flags & SEC_HAS_CONTENTS) != 0 \
4665 && s->_raw_size > 0 \
4666 && (bfd_vma) s->filepos >= p->p_offset \
4667 && ((bfd_vma) s->filepos + s->_raw_size \
4668 <= p->p_offset + p->p_filesz))
5c440b1e 4669
bc67d8a6
NC		 4670 /* Decide if the given section should be included in the given segment.
4671 A section will be included if:
f5ffc919
NC		 4672 1. It is within the address space of the segment -- we use the LMA
4673 if that is set for the segment and the VMA otherwise,
bc67d8a6
NC		 4674 2. It is an allocated segment,
4675 3. There is an output section associated with it,
eecdbe52
JJ		 4676 4. The section has not already been allocated to a previous segment.
4677 5. PT_TLS segment includes only SHF_TLS sections.
4678 6. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. */
caf47ea6 4679#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \
aecc8f8a
AM		 4680 ((((segment->p_paddr \
4681 ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \
4682 : IS_CONTAINED_BY_VMA (section, segment)) \
f5ffc919 4683 && (section->flags & SEC_ALLOC) != 0) \
b6821651 4684 || IS_COREFILE_NOTE (segment, section)) \
f5ffc919 4685 && section->output_section != NULL \
eecdbe52
JJ		 4686 && (segment->p_type != PT_TLS \
4687 || (section->flags & SEC_THREAD_LOCAL)) \
4688 && (segment->p_type == PT_LOAD \
4689 || segment->p_type == PT_TLS \
4690 || (section->flags & SEC_THREAD_LOCAL) == 0) \
82e51918 4691 && ! section->segment_mark)
bc67d8a6 4692
b34976b6 4693 /* Returns TRUE iff seg1 starts after the end of seg2. */
b5f852ea
NC		 4694#define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \
4695 (seg1->field >= SEGMENT_END (seg2, seg2->field))
4696
4697 /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both
4698 their VMA address ranges and their LMA address ranges overlap.
4699 It is possible to have overlapping VMA ranges without overlapping LMA
4700 ranges. RedBoot images for example can have both .data and .bss mapped
4701 to the same VMA range, but with the .data section mapped to a different
4702 LMA. */
aecc8f8a 4703#define SEGMENT_OVERLAPS(seg1, seg2) \
b5f852ea
NC		 4704 ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \
4705 || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \
4706 && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \
4707 || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr)))
bc67d8a6
NC		 4708
4709 /* Initialise the segment mark field. */
4710 for (section = ibfd->sections; section != NULL; section = section->next)
b34976b6 4711 section->segment_mark = FALSE;
bc67d8a6 4712
252b5132 4713 /* Scan through the segments specified in the program header
bc67d8a6 4714 of the input BFD. For this first scan we look for overlaps
9ad5cbcf 4715 in the loadable segments. These can be created by weird
aecc8f8a 4716 parameters to objcopy. Also, fix some solaris weirdness. */
bc67d8a6
NC		 4717 for (i = 0, segment = elf_tdata (ibfd)->phdr;
4718 i < num_segments;
c044fabd 4719 i++, segment++)
252b5132 4720 {
252b5132 4721 unsigned int j;
c044fabd 4722 Elf_Internal_Phdr *segment2;
252b5132 4723
aecc8f8a
AM		 4724 if (segment->p_type == PT_INTERP)
4725 for (section = ibfd->sections; section; section = section->next)
4726 if (IS_SOLARIS_PT_INTERP (segment, section))
4727 {
4728 /* Mininal change so that the normal section to segment
4729 assigment code will work. */
4730 segment->p_vaddr = section->vma;
4731 break;
4732 }
4733
bc67d8a6
NC		 4734 if (segment->p_type != PT_LOAD)
4735 continue;
c044fabd 4736
bc67d8a6 4737 /* Determine if this segment overlaps any previous segments. */
c044fabd 4738 for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2 ++)
bc67d8a6
NC		 4739 {
4740 bfd_signed_vma extra_length;
c044fabd 4741
bc67d8a6
NC		 4742 if (segment2->p_type != PT_LOAD
4743 || ! SEGMENT_OVERLAPS (segment, segment2))
4744 continue;
c044fabd 4745
bc67d8a6
NC		 4746 /* Merge the two segments together. */
4747 if (segment2->p_vaddr < segment->p_vaddr)
4748 {
c044fabd
KH		 4749 /* Extend SEGMENT2 to include SEGMENT and then delete
4750 SEGMENT. */
bc67d8a6
NC		 4751 extra_length =
4752 SEGMENT_END (segment, segment->p_vaddr)
4753 - SEGMENT_END (segment2, segment2->p_vaddr);
c044fabd 4754
bc67d8a6
NC		 4755 if (extra_length > 0)
4756 {
4757 segment2->p_memsz += extra_length;
4758 segment2->p_filesz += extra_length;
4759 }
c044fabd 4760
bc67d8a6 4761 segment->p_type = PT_NULL;
c044fabd 4762
bc67d8a6
NC		 4763 /* Since we have deleted P we must restart the outer loop. */
4764 i = 0;
4765 segment = elf_tdata (ibfd)->phdr;
4766 break;
4767 }
4768 else
4769 {
c044fabd
KH		 4770 /* Extend SEGMENT to include SEGMENT2 and then delete
4771 SEGMENT2. */
bc67d8a6
NC		 4772 extra_length =
4773 SEGMENT_END (segment2, segment2->p_vaddr)
4774 - SEGMENT_END (segment, segment->p_vaddr);
c044fabd 4775
bc67d8a6
NC		 4776 if (extra_length > 0)
4777 {
4778 segment->p_memsz += extra_length;
4779 segment->p_filesz += extra_length;
4780 }
c044fabd 4781
bc67d8a6
NC		 4782 segment2->p_type = PT_NULL;
4783 }
4784 }
4785 }
c044fabd 4786
bc67d8a6
NC		 4787 /* The second scan attempts to assign sections to segments. */
4788 for (i = 0, segment = elf_tdata (ibfd)->phdr;
4789 i < num_segments;
4790 i ++, segment ++)
4791 {
4792 unsigned int section_count;
4793 asection ** sections;
4794 asection * output_section;
4795 unsigned int isec;
4796 bfd_vma matching_lma;
4797 bfd_vma suggested_lma;
4798 unsigned int j;
dc810e39 4799 bfd_size_type amt;
bc67d8a6
NC		 4800
4801 if (segment->p_type == PT_NULL)
4802 continue;
c044fabd 4803
bc67d8a6 4804 /* Compute how many sections might be placed into this segment. */
b5f852ea
NC		 4805 for (section = ibfd->sections, section_count = 0;
4806 section != NULL;
4807 section = section->next)
caf47ea6 4808 if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed))
c044fabd 4809 ++section_count;
811072d8 4810
b5f852ea
NC		 4811 /* Allocate a segment map big enough to contain
4812 all of the sections we have selected. */
dc810e39
AM		 4813 amt = sizeof (struct elf_segment_map);
4814 amt += ((bfd_size_type) section_count - 1) * sizeof (asection *);
4815 map = (struct elf_segment_map *) bfd_alloc (obfd, amt);
bc67d8a6 4816 if (map == NULL)
b34976b6 4817 return FALSE;
252b5132
RH		 4818
4819 /* Initialise the fields of the segment map. Default to
4820 using the physical address of the segment in the input BFD. */
bc67d8a6
NC		 4821 map->next = NULL;
4822 map->p_type = segment->p_type;
4823 map->p_flags = segment->p_flags;
4824 map->p_flags_valid = 1;
4825 map->p_paddr = segment->p_paddr;
4826 map->p_paddr_valid = 1;
252b5132
RH		 4827
4828 /* Determine if this segment contains the ELF file header
4829 and if it contains the program headers themselves. */
bc67d8a6
NC		 4830 map->includes_filehdr = (segment->p_offset == 0
4831 && segment->p_filesz >= iehdr->e_ehsize);
252b5132 4832
bc67d8a6 4833 map->includes_phdrs = 0;
252b5132 4834
bc67d8a6 4835 if (! phdr_included || segment->p_type != PT_LOAD)
252b5132 4836 {
bc67d8a6
NC		 4837 map->includes_phdrs =
4838 (segment->p_offset <= (bfd_vma) iehdr->e_phoff
4839 && (segment->p_offset + segment->p_filesz
252b5132
RH		 4840 >= ((bfd_vma) iehdr->e_phoff
4841 + iehdr->e_phnum * iehdr->e_phentsize)));
c044fabd 4842
bc67d8a6 4843 if (segment->p_type == PT_LOAD && map->includes_phdrs)
b34976b6 4844 phdr_included = TRUE;
252b5132
RH		 4845 }
4846
bc67d8a6 4847 if (section_count == 0)
252b5132
RH		 4848 {
4849 /* Special segments, such as the PT_PHDR segment, may contain
4850 no sections, but ordinary, loadable segments should contain
1ed89aa9
NC		 4851 something. They are allowed by the ELF spec however, so only
4852 a warning is produced. */
bc67d8a6 4853 if (segment->p_type == PT_LOAD)
caf47ea6 4854 (*_bfd_error_handler)
1ed89aa9 4855 (_("%s: warning: Empty loadable segment detected, is this intentional ?\n"),
caf47ea6 4856 bfd_archive_filename (ibfd));
252b5132 4857
bc67d8a6 4858 map->count = 0;
c044fabd
KH		 4859 *pointer_to_map = map;
4860 pointer_to_map = &map->next;
252b5132
RH		 4861
4862 continue;
4863 }
4864
4865 /* Now scan the sections in the input BFD again and attempt
4866 to add their corresponding output sections to the segment map.
4867 The problem here is how to handle an output section which has
4868 been moved (ie had its LMA changed). There are four possibilities:
4869
4870 1. None of the sections have been moved.
4871 In this case we can continue to use the segment LMA from the
4872 input BFD.
4873
4874 2. All of the sections have been moved by the same amount.
4875 In this case we can change the segment's LMA to match the LMA
4876 of the first section.
4877
4878 3. Some of the sections have been moved, others have not.
4879 In this case those sections which have not been moved can be
4880 placed in the current segment which will have to have its size,
4881 and possibly its LMA changed, and a new segment or segments will
4882 have to be created to contain the other sections.
4883
b5f852ea 4884 4. The sections have been moved, but not by the same amount.
252b5132
RH		 4885 In this case we can change the segment's LMA to match the LMA
4886 of the first section and we will have to create a new segment
4887 or segments to contain the other sections.
4888
4889 In order to save time, we allocate an array to hold the section
4890 pointers that we are interested in. As these sections get assigned
4891 to a segment, they are removed from this array. */
4892
0b14c2aa
L		 4893 /* Gcc 2.96 miscompiles this code on mips. Don't do casting here
4894 to work around this long long bug. */
4895 amt = section_count * sizeof (asection *);
dc810e39 4896 sections = (asection **) bfd_malloc (amt);
252b5132 4897 if (sections == NULL)
b34976b6 4898 return FALSE;
252b5132
RH		 4899
4900 /* Step One: Scan for segment vs section LMA conflicts.
4901 Also add the sections to the section array allocated above.
4902 Also add the sections to the current segment. In the common
4903 case, where the sections have not been moved, this means that
4904 we have completely filled the segment, and there is nothing
4905 more to do. */
252b5132 4906 isec = 0;
72730e0c 4907 matching_lma = 0;
252b5132
RH		 4908 suggested_lma = 0;
4909
bc67d8a6
NC		 4910 for (j = 0, section = ibfd->sections;
4911 section != NULL;
4912 section = section->next)
252b5132 4913 {
caf47ea6 4914 if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed))
c0f7859b 4915 {
bc67d8a6
NC		 4916 output_section = section->output_section;
4917
4918 sections[j ++] = section;
252b5132
RH		 4919
4920 /* The Solaris native linker always sets p_paddr to 0.
4921 We try to catch that case here, and set it to the
5e8d7549
NC		 4922 correct value. Note - some backends require that
4923 p_paddr be left as zero. */
bc67d8a6 4924 if (segment->p_paddr == 0
4455705d 4925 && segment->p_vaddr != 0
5e8d7549 4926 && (! bed->want_p_paddr_set_to_zero)
252b5132 4927 && isec == 0
bc67d8a6
NC		 4928 && output_section->lma != 0
4929 && (output_section->vma == (segment->p_vaddr
4930 + (map->includes_filehdr
4931 ? iehdr->e_ehsize
4932 : 0)
4933 + (map->includes_phdrs
079e9a2f
AM		 4934 ? (iehdr->e_phnum
4935 * iehdr->e_phentsize)
bc67d8a6
NC		 4936 : 0))))
4937 map->p_paddr = segment->p_vaddr;
252b5132
RH		 4938
4939 /* Match up the physical address of the segment with the
4940 LMA address of the output section. */
bc67d8a6 4941 if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr)
5e8d7549
NC		 4942 || IS_COREFILE_NOTE (segment, section)
4943 || (bed->want_p_paddr_set_to_zero &&
4944 IS_CONTAINED_BY_VMA (output_section, segment))
4945 )
252b5132
RH		 4946 {
4947 if (matching_lma == 0)
bc67d8a6 4948 matching_lma = output_section->lma;
252b5132
RH		 4949
4950 /* We assume that if the section fits within the segment
bc67d8a6 4951 then it does not overlap any other section within that
252b5132 4952 segment. */
bc67d8a6 4953 map->sections[isec ++] = output_section;
252b5132
RH		 4954 }
4955 else if (suggested_lma == 0)
bc67d8a6 4956 suggested_lma = output_section->lma;
252b5132
RH		 4957 }
4958 }
4959
bc67d8a6 4960 BFD_ASSERT (j == section_count);
252b5132
RH		 4961
4962 /* Step Two: Adjust the physical address of the current segment,
4963 if necessary. */
bc67d8a6 4964 if (isec == section_count)
252b5132
RH		 4965 {
4966 /* All of the sections fitted within the segment as currently
4967 specified. This is the default case. Add the segment to
4968 the list of built segments and carry on to process the next
4969 program header in the input BFD. */
bc67d8a6 4970 map->count = section_count;
c044fabd
KH		 4971 *pointer_to_map = map;
4972 pointer_to_map = &map->next;
252b5132
RH		 4973
4974 free (sections);
4975 continue;
4976 }
252b5132
RH		 4977 else
4978 {
72730e0c
AM		 4979 if (matching_lma != 0)
4980 {
4981 /* At least one section fits inside the current segment.
4982 Keep it, but modify its physical address to match the
4983 LMA of the first section that fitted. */
bc67d8a6 4984 map->p_paddr = matching_lma;
72730e0c
AM		 4985 }
4986 else
4987 {
4988 /* None of the sections fitted inside the current segment.
4989 Change the current segment's physical address to match
4990 the LMA of the first section. */
bc67d8a6 4991 map->p_paddr = suggested_lma;
72730e0c
AM		 4992 }
4993
bc67d8a6
NC		 4994 /* Offset the segment physical address from the lma
4995 to allow for space taken up by elf headers. */
4996 if (map->includes_filehdr)
4997 map->p_paddr -= iehdr->e_ehsize;
252b5132 4998
bc67d8a6
NC		 4999 if (map->includes_phdrs)
5000 {
5001 map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize;
5002
5003 /* iehdr->e_phnum is just an estimate of the number
5004 of program headers that we will need. Make a note
5005 here of the number we used and the segment we chose
5006 to hold these headers, so that we can adjust the
5007 offset when we know the correct value. */
5008 phdr_adjust_num = iehdr->e_phnum;
5009 phdr_adjust_seg = map;
5010 }
252b5132
RH		 5011 }
5012
5013 /* Step Three: Loop over the sections again, this time assigning
caf47ea6 5014 those that fit to the current segment and removing them from the
252b5132
RH		 5015 sections array; but making sure not to leave large gaps. Once all
5016 possible sections have been assigned to the current segment it is
5017 added to the list of built segments and if sections still remain
5018 to be assigned, a new segment is constructed before repeating
5019 the loop. */
5020 isec = 0;
5021 do
5022 {
bc67d8a6 5023 map->count = 0;
252b5132
RH		 5024 suggested_lma = 0;
5025
5026 /* Fill the current segment with sections that fit. */
bc67d8a6 5027 for (j = 0; j < section_count; j++)
252b5132 5028 {
bc67d8a6 5029 section = sections[j];
252b5132 5030
bc67d8a6 5031 if (section == NULL)
252b5132
RH		 5032 continue;
5033
bc67d8a6 5034 output_section = section->output_section;
252b5132 5035
bc67d8a6 5036 BFD_ASSERT (output_section != NULL);
c044fabd 5037
bc67d8a6
NC		 5038 if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr)
5039 || IS_COREFILE_NOTE (segment, section))
252b5132 5040 {
bc67d8a6 5041 if (map->count == 0)
252b5132
RH		 5042 {
5043 /* If the first section in a segment does not start at
bc67d8a6
NC		 5044 the beginning of the segment, then something is
5045 wrong. */
5046 if (output_section->lma !=
5047 (map->p_paddr
5048 + (map->includes_filehdr ? iehdr->e_ehsize : 0)
5049 + (map->includes_phdrs
5050 ? iehdr->e_phnum * iehdr->e_phentsize
5051 : 0)))
252b5132
RH		 5052 abort ();
5053 }
5054 else
5055 {
5056 asection * prev_sec;
252b5132 5057
bc67d8a6 5058 prev_sec = map->sections[map->count - 1];
252b5132
RH		 5059
5060 /* If the gap between the end of the previous section
bc67d8a6
NC		 5061 and the start of this section is more than
5062 maxpagesize then we need to start a new segment. */
079e9a2f
AM		 5063 if ((BFD_ALIGN (prev_sec->lma + prev_sec->_raw_size,
5064 maxpagesize)
caf47ea6 5065 < BFD_ALIGN (output_section->lma, maxpagesize))
079e9a2f
AM		 5066 || ((prev_sec->lma + prev_sec->_raw_size)
5067 > output_section->lma))
252b5132
RH		 5068 {
5069 if (suggested_lma == 0)
bc67d8a6 5070 suggested_lma = output_section->lma;
252b5132
RH		 5071
5072 continue;
5073 }
5074 }
5075
bc67d8a6 5076 map->sections[map->count++] = output_section;
252b5132
RH		 5077 ++isec;
5078 sections[j] = NULL;
b34976b6 5079 section->segment_mark = TRUE;
252b5132
RH		 5080 }
5081 else if (suggested_lma == 0)
bc67d8a6 5082 suggested_lma = output_section->lma;
252b5132
RH		 5083 }
5084
bc67d8a6 5085 BFD_ASSERT (map->count > 0);
252b5132
RH		 5086
5087 /* Add the current segment to the list of built segments. */
c044fabd
KH		 5088 *pointer_to_map = map;
5089 pointer_to_map = &map->next;
252b5132 5090
bc67d8a6 5091 if (isec < section_count)
252b5132
RH		 5092 {
5093 /* We still have not allocated all of the sections to
5094 segments. Create a new segment here, initialise it
5095 and carry on looping. */
dc810e39
AM		 5096 amt = sizeof (struct elf_segment_map);
5097 amt += ((bfd_size_type) section_count - 1) * sizeof (asection *);
5098 map = (struct elf_segment_map *) bfd_alloc (obfd, amt);
bc67d8a6 5099 if (map == NULL)
5ed6aba4
NC		 5100 {
5101 free (sections);
5102 return FALSE;
5103 }
252b5132
RH		 5104
5105 /* Initialise the fields of the segment map. Set the physical
5106 physical address to the LMA of the first section that has
5107 not yet been assigned. */
bc67d8a6
NC		 5108 map->next = NULL;
5109 map->p_type = segment->p_type;
5110 map->p_flags = segment->p_flags;
5111 map->p_flags_valid = 1;
5112 map->p_paddr = suggested_lma;
5113 map->p_paddr_valid = 1;
5114 map->includes_filehdr = 0;
5115 map->includes_phdrs = 0;
252b5132
RH		 5116 }
5117 }
bc67d8a6 5118 while (isec < section_count);
252b5132
RH		 5119
5120 free (sections);
5121 }
5122
5123 /* The Solaris linker creates program headers in which all the
5124 p_paddr fields are zero. When we try to objcopy or strip such a
5125 file, we get confused. Check for this case, and if we find it
5126 reset the p_paddr_valid fields. */
bc67d8a6
NC		 5127 for (map = map_first; map != NULL; map = map->next)
5128 if (map->p_paddr != 0)
252b5132 5129 break;
bc67d8a6 5130 if (map == NULL)
b5f852ea
NC		 5131 for (map = map_first; map != NULL; map = map->next)
5132 map->p_paddr_valid = 0;
252b5132 5133
bc67d8a6
NC		 5134 elf_tdata (obfd)->segment_map = map_first;
5135
5136 /* If we had to estimate the number of program headers that were
9ad5cbcf 5137 going to be needed, then check our estimate now and adjust
bc67d8a6
NC		 5138 the offset if necessary. */
5139 if (phdr_adjust_seg != NULL)
5140 {
5141 unsigned int count;
c044fabd 5142
bc67d8a6 5143 for (count = 0, map = map_first; map != NULL; map = map->next)
c044fabd 5144 count++;
252b5132 5145
bc67d8a6
NC		 5146 if (count > phdr_adjust_num)
5147 phdr_adjust_seg->p_paddr
5148 -= (count - phdr_adjust_num) * iehdr->e_phentsize;
5149 }
c044fabd 5150
252b5132 5151#if 0
c044fabd
KH		 5152 /* Final Step: Sort the segments into ascending order of physical
5153 address. */
bc67d8a6 5154 if (map_first != NULL)
252b5132 5155 {
c044fabd 5156 struct elf_segment_map *prev;
252b5132 5157
bc67d8a6
NC		 5158 prev = map_first;
5159 for (map = map_first->next; map != NULL; prev = map, map = map->next)
252b5132 5160 {
bc67d8a6
NC		 5161 /* Yes I know - its a bubble sort.... */
5162 if (map->next != NULL && (map->next->p_paddr < map->p_paddr))
252b5132 5163 {
bc67d8a6
NC		 5164 /* Swap map and map->next. */
5165 prev->next = map->next;
5166 map->next = map->next->next;
5167 prev->next->next = map;
252b5132 5168
bc67d8a6
NC		 5169 /* Restart loop. */
5170 map = map_first;
252b5132
RH		 5171 }
5172 }
5173 }
5174#endif
5175
bc67d8a6 5176#undef SEGMENT_END
eecdbe52 5177#undef SECTION_SIZE
bc67d8a6
NC		 5178#undef IS_CONTAINED_BY_VMA
5179#undef IS_CONTAINED_BY_LMA
252b5132 5180#undef IS_COREFILE_NOTE
bc67d8a6
NC		 5181#undef IS_SOLARIS_PT_INTERP
5182#undef INCLUDE_SECTION_IN_SEGMENT
5183#undef SEGMENT_AFTER_SEGMENT
5184#undef SEGMENT_OVERLAPS
b34976b6 5185 return TRUE;
252b5132
RH		 5186}
5187
5188/* Copy private section information. This copies over the entsize
5189 field, and sometimes the info field. */
5190
b34976b6 5191bfd_boolean
252b5132
RH		 5192_bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec)
5193 bfd *ibfd;
5194 asection *isec;
5195 bfd *obfd;
5196 asection *osec;
5197{
5198 Elf_Internal_Shdr *ihdr, *ohdr;
5199
5200 if (ibfd->xvec->flavour != bfd_target_elf_flavour
5201 || obfd->xvec->flavour != bfd_target_elf_flavour)
b34976b6 5202 return TRUE;
252b5132 5203
ad12c1c5 5204 if (elf_tdata (obfd)->segment_map == NULL && elf_tdata (ibfd)->phdr != NULL)
caf47ea6
AM		 5205 {
5206 asection *s;
5207
5208 /* Only set up the segments if there are no more SEC_ALLOC
5209 sections. FIXME: This won't do the right thing if objcopy is
5210 used to remove the last SEC_ALLOC section, since objcopy
5211 won't call this routine in that case. */
5212 for (s = isec->next; s != NULL; s = s->next)
5213 if ((s->flags & SEC_ALLOC) != 0)
5214 break;
5215 if (s == NULL)
5216 {
5217 if (! copy_private_bfd_data (ibfd, obfd))
b34976b6 5218 return FALSE;
caf47ea6 5219 }
252b5132
RH		 5220 }
5221
5222 ihdr = &elf_section_data (isec)->this_hdr;
5223 ohdr = &elf_section_data (osec)->this_hdr;
5224
5225 ohdr->sh_entsize = ihdr->sh_entsize;
5226
5227 if (ihdr->sh_type == SHT_SYMTAB
5228 || ihdr->sh_type == SHT_DYNSYM
5229 || ihdr->sh_type == SHT_GNU_verneed
5230 || ihdr->sh_type == SHT_GNU_verdef)
5231 ohdr->sh_info = ihdr->sh_info;
5232
9dce4196
AM		 5233 /* Set things up for objcopy. The output SHT_GROUP section will
5234 have its elf_next_in_group pointing back to the input group
5235 members. */
5236 elf_next_in_group (osec) = elf_next_in_group (isec);
5237 elf_group_name (osec) = elf_group_name (isec);
5238
68bfbfcc 5239 osec->use_rela_p = isec->use_rela_p;
bf572ba0 5240
b34976b6 5241 return TRUE;
252b5132
RH		 5242}
5243
5244/* Copy private symbol information. If this symbol is in a section
5245 which we did not map into a BFD section, try to map the section
5246 index correctly. We use special macro definitions for the mapped
5247 section indices; these definitions are interpreted by the
5248 swap_out_syms function. */
5249
9ad5cbcf
AM		 5250#define MAP_ONESYMTAB (SHN_HIOS + 1)
5251#define MAP_DYNSYMTAB (SHN_HIOS + 2)
5252#define MAP_STRTAB (SHN_HIOS + 3)
5253#define MAP_SHSTRTAB (SHN_HIOS + 4)
5254#define MAP_SYM_SHNDX (SHN_HIOS + 5)
252b5132 5255
b34976b6 5256bfd_boolean
252b5132
RH		 5257_bfd_elf_copy_private_symbol_data (ibfd, isymarg, obfd, osymarg)
5258 bfd *ibfd;
5259 asymbol *isymarg;
5260 bfd *obfd;
5261 asymbol *osymarg;
5262{
5263 elf_symbol_type *isym, *osym;
5264
5265 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
5266 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 5267 return TRUE;
252b5132
RH		 5268
5269 isym = elf_symbol_from (ibfd, isymarg);
5270 osym = elf_symbol_from (obfd, osymarg);
5271
5272 if (isym != NULL
5273 && osym != NULL
5274 && bfd_is_abs_section (isym->symbol.section))
5275 {
5276 unsigned int shndx;
5277
5278 shndx = isym->internal_elf_sym.st_shndx;
5279 if (shndx == elf_onesymtab (ibfd))
5280 shndx = MAP_ONESYMTAB;
5281 else if (shndx == elf_dynsymtab (ibfd))
5282 shndx = MAP_DYNSYMTAB;
5283 else if (shndx == elf_tdata (ibfd)->strtab_section)
5284 shndx = MAP_STRTAB;
5285 else if (shndx == elf_tdata (ibfd)->shstrtab_section)
5286 shndx = MAP_SHSTRTAB;
9ad5cbcf
AM		 5287 else if (shndx == elf_tdata (ibfd)->symtab_shndx_section)
5288 shndx = MAP_SYM_SHNDX;
252b5132
RH		 5289 osym->internal_elf_sym.st_shndx = shndx;
5290 }
5291
b34976b6 5292 return TRUE;
252b5132
RH		 5293}
5294
5295/* Swap out the symbols. */
5296
b34976b6 5297static bfd_boolean
252b5132
RH		 5298swap_out_syms (abfd, sttp, relocatable_p)
5299 bfd *abfd;
5300 struct bfd_strtab_hash **sttp;
5301 int relocatable_p;
5302{
079e9a2f
AM		 5303 struct elf_backend_data *bed;
5304 int symcount;
5305 asymbol **syms;
5306 struct bfd_strtab_hash *stt;
5307 Elf_Internal_Shdr *symtab_hdr;
9ad5cbcf 5308 Elf_Internal_Shdr *symtab_shndx_hdr;
079e9a2f
AM		 5309 Elf_Internal_Shdr *symstrtab_hdr;
5310 char *outbound_syms;
9ad5cbcf 5311 char *outbound_shndx;
079e9a2f
AM		 5312 int idx;
5313 bfd_size_type amt;
252b5132
RH		 5314
5315 if (!elf_map_symbols (abfd))
b34976b6 5316 return FALSE;
252b5132 5317
c044fabd 5318 /* Dump out the symtabs. */
079e9a2f
AM		 5319 stt = _bfd_elf_stringtab_init ();
5320 if (stt == NULL)
b34976b6 5321 return FALSE;
252b5132 5322
079e9a2f
AM		 5323 bed = get_elf_backend_data (abfd);
5324 symcount = bfd_get_symcount (abfd);
5325 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5326 symtab_hdr->sh_type = SHT_SYMTAB;
5327 symtab_hdr->sh_entsize = bed->s->sizeof_sym;
5328 symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1);
5329 symtab_hdr->sh_info = elf_num_locals (abfd) + 1;
45d6a902 5330 symtab_hdr->sh_addralign = 1 << bed->s->log_file_align;
079e9a2f
AM		 5331
5332 symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr;
5333 symstrtab_hdr->sh_type = SHT_STRTAB;
5334
5335 amt = (bfd_size_type) (1 + symcount) * bed->s->sizeof_sym;
5336 outbound_syms = bfd_alloc (abfd, amt);
5337 if (outbound_syms == NULL)
5ed6aba4
NC		 5338 {
5339 _bfd_stringtab_free (stt);
5340 return FALSE;
5341 }
079e9a2f 5342 symtab_hdr->contents = (PTR) outbound_syms;
252b5132 5343
9ad5cbcf
AM		 5344 outbound_shndx = NULL;
5345 symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
5346 if (symtab_shndx_hdr->sh_name != 0)
5347 {
5348 amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx);
1126897b 5349 outbound_shndx = bfd_zalloc (abfd, amt);
9ad5cbcf 5350 if (outbound_shndx == NULL)
5ed6aba4
NC		 5351 {
5352 _bfd_stringtab_free (stt);
5353 return FALSE;
5354 }
5355
9ad5cbcf
AM		 5356 symtab_shndx_hdr->contents = outbound_shndx;
5357 symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX;
5358 symtab_shndx_hdr->sh_size = amt;
5359 symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx);
5360 symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx);
5361 }
5362
589e6347 5363 /* Now generate the data (for "contents"). */
079e9a2f
AM		 5364 {
5365 /* Fill in zeroth symbol and swap it out. */
5366 Elf_Internal_Sym sym;
5367 sym.st_name = 0;
5368 sym.st_value = 0;
5369 sym.st_size = 0;
5370 sym.st_info = 0;
5371 sym.st_other = 0;
5372 sym.st_shndx = SHN_UNDEF;
9ad5cbcf 5373 bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx);
079e9a2f 5374 outbound_syms += bed->s->sizeof_sym;
9ad5cbcf
AM		 5375 if (outbound_shndx != NULL)
5376 outbound_shndx += sizeof (Elf_External_Sym_Shndx);
079e9a2f 5377 }
252b5132 5378
079e9a2f
AM		 5379 syms = bfd_get_outsymbols (abfd);
5380 for (idx = 0; idx < symcount; idx++)
252b5132 5381 {
252b5132 5382 Elf_Internal_Sym sym;
079e9a2f
AM		 5383 bfd_vma value = syms[idx]->value;
5384 elf_symbol_type *type_ptr;
5385 flagword flags = syms[idx]->flags;
5386 int type;
252b5132 5387
079e9a2f
AM		 5388 if ((flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM)
5389 {
5390 /* Local section symbols have no name. */
5391 sym.st_name = 0;
5392 }
5393 else
5394 {
5395 sym.st_name = (unsigned long) _bfd_stringtab_add (stt,
5396 syms[idx]->name,
b34976b6 5397 TRUE, FALSE);
079e9a2f 5398 if (sym.st_name == (unsigned long) -1)
5ed6aba4
NC		 5399 {
5400 _bfd_stringtab_free (stt);
5401 return FALSE;
5402 }
079e9a2f 5403 }
252b5132 5404
079e9a2f 5405 type_ptr = elf_symbol_from (abfd, syms[idx]);
252b5132 5406
079e9a2f
AM		 5407 if ((flags & BSF_SECTION_SYM) == 0
5408 && bfd_is_com_section (syms[idx]->section))
5409 {
5410 /* ELF common symbols put the alignment into the `value' field,
5411 and the size into the `size' field. This is backwards from
5412 how BFD handles it, so reverse it here. */
5413 sym.st_size = value;
5414 if (type_ptr == NULL
5415 || type_ptr->internal_elf_sym.st_value == 0)
5416 sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value));
5417 else
5418 sym.st_value = type_ptr->internal_elf_sym.st_value;
5419 sym.st_shndx = _bfd_elf_section_from_bfd_section
5420 (abfd, syms[idx]->section);
5421 }
5422 else
5423 {
5424 asection *sec = syms[idx]->section;
5425 int shndx;
252b5132 5426
079e9a2f
AM		 5427 if (sec->output_section)
5428 {
5429 value += sec->output_offset;
5430 sec = sec->output_section;
5431 }
589e6347 5432
079e9a2f
AM		 5433 /* Don't add in the section vma for relocatable output. */
5434 if (! relocatable_p)
5435 value += sec->vma;
5436 sym.st_value = value;
5437 sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0;
5438
5439 if (bfd_is_abs_section (sec)
5440 && type_ptr != NULL
5441 && type_ptr->internal_elf_sym.st_shndx != 0)
5442 {
5443 /* This symbol is in a real ELF section which we did
5444 not create as a BFD section. Undo the mapping done
5445 by copy_private_symbol_data. */
5446 shndx = type_ptr->internal_elf_sym.st_shndx;
5447 switch (shndx)
5448 {
5449 case MAP_ONESYMTAB:
5450 shndx = elf_onesymtab (abfd);
5451 break;
5452 case MAP_DYNSYMTAB:
5453 shndx = elf_dynsymtab (abfd);
5454 break;
5455 case MAP_STRTAB:
5456 shndx = elf_tdata (abfd)->strtab_section;
5457 break;
5458 case MAP_SHSTRTAB:
5459 shndx = elf_tdata (abfd)->shstrtab_section;
5460 break;
9ad5cbcf
AM		 5461 case MAP_SYM_SHNDX:
5462 shndx = elf_tdata (abfd)->symtab_shndx_section;
5463 break;
079e9a2f
AM		 5464 default:
5465 break;
5466 }
5467 }
5468 else
5469 {
5470 shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
252b5132 5471
079e9a2f
AM		 5472 if (shndx == -1)
5473 {
5474 asection *sec2;
5475
5476 /* Writing this would be a hell of a lot easier if
5477 we had some decent documentation on bfd, and
5478 knew what to expect of the library, and what to
5479 demand of applications. For example, it
5480 appears that `objcopy' might not set the
5481 section of a symbol to be a section that is
5482 actually in the output file. */
5483 sec2 = bfd_get_section_by_name (abfd, sec->name);
589e6347
NC		 5484 if (sec2 == NULL)
5485 {
5486 _bfd_error_handler (_("\
5487Unable to find equivalent output section for symbol '%s' from section '%s'"),
5488 syms[idx]->name ? syms[idx]->name : "<Local sym>",
5489 sec->name);
811072d8 5490 bfd_set_error (bfd_error_invalid_operation);
5ed6aba4 5491 _bfd_stringtab_free (stt);
589e6347
NC		 5492 return FALSE;
5493 }
811072d8 5494
079e9a2f
AM		 5495 shndx = _bfd_elf_section_from_bfd_section (abfd, sec2);
5496 BFD_ASSERT (shndx != -1);
5497 }
5498 }
252b5132 5499
079e9a2f
AM		 5500 sym.st_shndx = shndx;
5501 }
252b5132 5502
13ae64f3
JJ		 5503 if ((flags & BSF_THREAD_LOCAL) != 0)
5504 type = STT_TLS;
5505 else if ((flags & BSF_FUNCTION) != 0)
079e9a2f
AM		 5506 type = STT_FUNC;
5507 else if ((flags & BSF_OBJECT) != 0)
5508 type = STT_OBJECT;
5509 else
5510 type = STT_NOTYPE;
252b5132 5511
13ae64f3
JJ		 5512 if (syms[idx]->section->flags & SEC_THREAD_LOCAL)
5513 type = STT_TLS;
5514
589e6347 5515 /* Processor-specific types. */
079e9a2f
AM		 5516 if (type_ptr != NULL
5517 && bed->elf_backend_get_symbol_type)
5518 type = ((*bed->elf_backend_get_symbol_type)
5519 (&type_ptr->internal_elf_sym, type));
252b5132 5520
079e9a2f
AM		 5521 if (flags & BSF_SECTION_SYM)
5522 {
5523 if (flags & BSF_GLOBAL)
5524 sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
5525 else
5526 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
5527 }
5528 else if (bfd_is_com_section (syms[idx]->section))
5529 sym.st_info = ELF_ST_INFO (STB_GLOBAL, type);
5530 else if (bfd_is_und_section (syms[idx]->section))
5531 sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK)
5532 ? STB_WEAK
5533 : STB_GLOBAL),
5534 type);
5535 else if (flags & BSF_FILE)
5536 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE);
5537 else
5538 {
5539 int bind = STB_LOCAL;
252b5132 5540
079e9a2f
AM		 5541 if (flags & BSF_LOCAL)
5542 bind = STB_LOCAL;
5543 else if (flags & BSF_WEAK)
5544 bind = STB_WEAK;
5545 else if (flags & BSF_GLOBAL)
5546 bind = STB_GLOBAL;
252b5132 5547
079e9a2f
AM		 5548 sym.st_info = ELF_ST_INFO (bind, type);
5549 }
252b5132 5550
079e9a2f
AM		 5551 if (type_ptr != NULL)
5552 sym.st_other = type_ptr->internal_elf_sym.st_other;
5553 else
5554 sym.st_other = 0;
252b5132 5555
9ad5cbcf 5556 bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx);
079e9a2f 5557 outbound_syms += bed->s->sizeof_sym;
9ad5cbcf
AM		 5558 if (outbound_shndx != NULL)
5559 outbound_shndx += sizeof (Elf_External_Sym_Shndx);
079e9a2f 5560 }
252b5132 5561
079e9a2f
AM		 5562 *sttp = stt;
5563 symstrtab_hdr->sh_size = _bfd_stringtab_size (stt);
5564 symstrtab_hdr->sh_type = SHT_STRTAB;
252b5132 5565
079e9a2f
AM		 5566 symstrtab_hdr->sh_flags = 0;
5567 symstrtab_hdr->sh_addr = 0;
5568 symstrtab_hdr->sh_entsize = 0;
5569 symstrtab_hdr->sh_link = 0;
5570 symstrtab_hdr->sh_info = 0;
5571 symstrtab_hdr->sh_addralign = 1;
252b5132 5572
b34976b6 5573 return TRUE;
252b5132
RH		 5574}
5575
5576/* Return the number of bytes required to hold the symtab vector.
5577
5578 Note that we base it on the count plus 1, since we will null terminate
5579 the vector allocated based on this size. However, the ELF symbol table
5580 always has a dummy entry as symbol #0, so it ends up even. */
5581
5582long
5583_bfd_elf_get_symtab_upper_bound (abfd)
5584 bfd *abfd;
5585{
5586 long symcount;
5587 long symtab_size;
5588 Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr;
5589
5590 symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
b99d1833
AM		 5591 symtab_size = (symcount + 1) * (sizeof (asymbol *));
5592 if (symcount > 0)
5593 symtab_size -= sizeof (asymbol *);
252b5132
RH		 5594
5595 return symtab_size;
5596}
5597
5598long
5599_bfd_elf_get_dynamic_symtab_upper_bound (abfd)
5600 bfd *abfd;
5601{
5602 long symcount;
5603 long symtab_size;
5604 Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr;
5605
5606 if (elf_dynsymtab (abfd) == 0)
5607 {
5608 bfd_set_error (bfd_error_invalid_operation);
5609 return -1;
5610 }
5611
5612 symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
b99d1833
AM		 5613 symtab_size = (symcount + 1) * (sizeof (asymbol *));
5614 if (symcount > 0)
5615 symtab_size -= sizeof (asymbol *);
252b5132
RH		 5616
5617 return symtab_size;
5618}
5619
5620long
5621_bfd_elf_get_reloc_upper_bound (abfd, asect)
7442e600 5622 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 5623 sec_ptr asect;
5624{
5625 return (asect->reloc_count + 1) * sizeof (arelent *);
5626}
5627
5628/* Canonicalize the relocs. */
5629
5630long
5631_bfd_elf_canonicalize_reloc (abfd, section, relptr, symbols)
5632 bfd *abfd;
5633 sec_ptr section;
5634 arelent **relptr;
5635 asymbol **symbols;
5636{
5637 arelent *tblptr;
5638 unsigned int i;
dbb410c3 5639 struct elf_backend_data *bed = get_elf_backend_data (abfd);
252b5132 5640
b34976b6 5641 if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE))
252b5132
RH		 5642 return -1;
5643
5644 tblptr = section->relocation;
5645 for (i = 0; i < section->reloc_count; i++)
5646 *relptr++ = tblptr++;
5647
5648 *relptr = NULL;
5649
5650 return section->reloc_count;
5651}
5652
5653long
5654_bfd_elf_get_symtab (abfd, alocation)
5655 bfd *abfd;
5656 asymbol **alocation;
5657{
dbb410c3 5658 struct elf_backend_data *bed = get_elf_backend_data (abfd);
b34976b6 5659 long symcount = bed->s->slurp_symbol_table (abfd, alocation, FALSE);
252b5132
RH		 5660
5661 if (symcount >= 0)
5662 bfd_get_symcount (abfd) = symcount;
5663 return symcount;
5664}
5665
5666long
5667_bfd_elf_canonicalize_dynamic_symtab (abfd, alocation)
5668 bfd *abfd;
5669 asymbol **alocation;
5670{
dbb410c3 5671 struct elf_backend_data *bed = get_elf_backend_data (abfd);
b34976b6 5672 long symcount = bed->s->slurp_symbol_table (abfd, alocation, TRUE);
1f70368c
DJ		 5673
5674 if (symcount >= 0)
5675 bfd_get_dynamic_symcount (abfd) = symcount;
5676 return symcount;
252b5132
RH		 5677}
5678
5679/* Return the size required for the dynamic reloc entries. Any
5680 section that was actually installed in the BFD, and has type
5681 SHT_REL or SHT_RELA, and uses the dynamic symbol table, is
5682 considered to be a dynamic reloc section. */
5683
5684long
5685_bfd_elf_get_dynamic_reloc_upper_bound (abfd)
5686 bfd *abfd;
5687{
5688 long ret;
5689 asection *s;
5690
5691 if (elf_dynsymtab (abfd) == 0)
5692 {
5693 bfd_set_error (bfd_error_invalid_operation);
5694 return -1;
5695 }
5696
5697 ret = sizeof (arelent *);
5698 for (s = abfd->sections; s != NULL; s = s->next)
5699 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
5700 && (elf_section_data (s)->this_hdr.sh_type == SHT_REL
5701 || elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
5702 ret += ((s->_raw_size / elf_section_data (s)->this_hdr.sh_entsize)
5703 * sizeof (arelent *));
5704
5705 return ret;
5706}
5707
5708/* Canonicalize the dynamic relocation entries. Note that we return
5709 the dynamic relocations as a single block, although they are
5710 actually associated with particular sections; the interface, which
5711 was designed for SunOS style shared libraries, expects that there
5712 is only one set of dynamic relocs. Any section that was actually
5713 installed in the BFD, and has type SHT_REL or SHT_RELA, and uses
5714 the dynamic symbol table, is considered to be a dynamic reloc
5715 section. */
5716
5717long
5718_bfd_elf_canonicalize_dynamic_reloc (abfd, storage, syms)
5719 bfd *abfd;
5720 arelent **storage;
5721 asymbol **syms;
5722{
b34976b6
AM		 5723 bfd_boolean (*slurp_relocs)
5724 PARAMS ((bfd *, asection *, asymbol **, bfd_boolean));
252b5132
RH		 5725 asection *s;
5726 long ret;
5727
5728 if (elf_dynsymtab (abfd) == 0)
5729 {
5730 bfd_set_error (bfd_error_invalid_operation);
5731 return -1;
5732 }
5733
5734 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
5735 ret = 0;
5736 for (s = abfd->sections; s != NULL; s = s->next)
5737 {
5738 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
5739 && (elf_section_data (s)->this_hdr.sh_type == SHT_REL
5740 || elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
5741 {
5742 arelent *p;
5743 long count, i;
5744
b34976b6 5745 if (! (*slurp_relocs) (abfd, s, syms, TRUE))
252b5132
RH		 5746 return -1;
5747 count = s->_raw_size / elf_section_data (s)->this_hdr.sh_entsize;
5748 p = s->relocation;
5749 for (i = 0; i < count; i++)
5750 *storage++ = p++;
5751 ret += count;
5752 }
5753 }
5754
5755 *storage = NULL;
5756
5757 return ret;
5758}
5759\f
5760/* Read in the version information. */
5761
b34976b6 5762bfd_boolean
252b5132
RH		 5763_bfd_elf_slurp_version_tables (abfd)
5764 bfd *abfd;
5765{
5766 bfd_byte *contents = NULL;
dc810e39 5767 bfd_size_type amt;
252b5132
RH		 5768
5769 if (elf_dynverdef (abfd) != 0)
5770 {
5771 Elf_Internal_Shdr *hdr;
5772 Elf_External_Verdef *everdef;
5773 Elf_Internal_Verdef *iverdef;
f631889e
UD		 5774 Elf_Internal_Verdef *iverdefarr;
5775 Elf_Internal_Verdef iverdefmem;
252b5132 5776 unsigned int i;
062e2358 5777 unsigned int maxidx;
252b5132
RH		 5778
5779 hdr = &elf_tdata (abfd)->dynverdef_hdr;
5780
252b5132
RH		 5781 contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
5782 if (contents == NULL)
5783 goto error_return;
5784 if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0
dc810e39 5785 || bfd_bread ((PTR) contents, hdr->sh_size, abfd) != hdr->sh_size)
252b5132
RH		 5786 goto error_return;
5787
f631889e
UD		 5788 /* We know the number of entries in the section but not the maximum
5789 index. Therefore we have to run through all entries and find
5790 the maximum. */
252b5132 5791 everdef = (Elf_External_Verdef *) contents;
f631889e
UD		 5792 maxidx = 0;
5793 for (i = 0; i < hdr->sh_info; ++i)
5794 {
5795 _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem);
5796
062e2358
AM		 5797 if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx)
5798 maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION);
f631889e
UD		 5799
5800 everdef = ((Elf_External_Verdef *)
5801 ((bfd_byte *) everdef + iverdefmem.vd_next));
5802 }
5803
dc810e39
AM		 5804 amt = (bfd_size_type) maxidx * sizeof (Elf_Internal_Verdef);
5805 elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt);
f631889e
UD		 5806 if (elf_tdata (abfd)->verdef == NULL)
5807 goto error_return;
5808
5809 elf_tdata (abfd)->cverdefs = maxidx;
5810
5811 everdef = (Elf_External_Verdef *) contents;
5812 iverdefarr = elf_tdata (abfd)->verdef;
5813 for (i = 0; i < hdr->sh_info; i++)
252b5132
RH		 5814 {
5815 Elf_External_Verdaux *everdaux;
5816 Elf_Internal_Verdaux *iverdaux;
5817 unsigned int j;
5818
f631889e
UD		 5819 _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem);
5820
5821 iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1];
5822 memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef));
252b5132
RH		 5823
5824 iverdef->vd_bfd = abfd;
5825
dc810e39
AM		 5826 amt = (bfd_size_type) iverdef->vd_cnt * sizeof (Elf_Internal_Verdaux);
5827 iverdef->vd_auxptr = (Elf_Internal_Verdaux *) bfd_alloc (abfd, amt);
252b5132
RH		 5828 if (iverdef->vd_auxptr == NULL)
5829 goto error_return;
5830
5831 everdaux = ((Elf_External_Verdaux *)
5832 ((bfd_byte *) everdef + iverdef->vd_aux));
5833 iverdaux = iverdef->vd_auxptr;
5834 for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++)
5835 {
5836 _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux);
5837
5838 iverdaux->vda_nodename =
5839 bfd_elf_string_from_elf_section (abfd, hdr->sh_link,
5840 iverdaux->vda_name);
5841 if (iverdaux->vda_nodename == NULL)
5842 goto error_return;
5843
5844 if (j + 1 < iverdef->vd_cnt)
5845 iverdaux->vda_nextptr = iverdaux + 1;
5846 else
5847 iverdaux->vda_nextptr = NULL;
5848
5849 everdaux = ((Elf_External_Verdaux *)
5850 ((bfd_byte *) everdaux + iverdaux->vda_next));
5851 }
5852
5853 iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename;
5854
5855 if (i + 1 < hdr->sh_info)
5856 iverdef->vd_nextdef = iverdef + 1;
5857 else
5858 iverdef->vd_nextdef = NULL;
5859
5860 everdef = ((Elf_External_Verdef *)
5861 ((bfd_byte *) everdef + iverdef->vd_next));
5862 }
5863
5864 free (contents);
5865 contents = NULL;
5866 }
5867
5868 if (elf_dynverref (abfd) != 0)
5869 {
5870 Elf_Internal_Shdr *hdr;
5871 Elf_External_Verneed *everneed;
5872 Elf_Internal_Verneed *iverneed;
5873 unsigned int i;
5874
5875 hdr = &elf_tdata (abfd)->dynverref_hdr;
5876
dc810e39 5877 amt = (bfd_size_type) hdr->sh_info * sizeof (Elf_Internal_Verneed);
252b5132 5878 elf_tdata (abfd)->verref =
dc810e39 5879 (Elf_Internal_Verneed *) bfd_zalloc (abfd, amt);
252b5132
RH		 5880 if (elf_tdata (abfd)->verref == NULL)
5881 goto error_return;
5882
5883 elf_tdata (abfd)->cverrefs = hdr->sh_info;
5884
5885 contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
5886 if (contents == NULL)
5887 goto error_return;
5888 if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0
dc810e39 5889 || bfd_bread ((PTR) contents, hdr->sh_size, abfd) != hdr->sh_size)
252b5132
RH		 5890 goto error_return;
5891
5892 everneed = (Elf_External_Verneed *) contents;
5893 iverneed = elf_tdata (abfd)->verref;
5894 for (i = 0; i < hdr->sh_info; i++, iverneed++)
5895 {
5896 Elf_External_Vernaux *evernaux;
5897 Elf_Internal_Vernaux *ivernaux;
5898 unsigned int j;
5899
5900 _bfd_elf_swap_verneed_in (abfd, everneed, iverneed);
5901
5902 iverneed->vn_bfd = abfd;
5903
5904 iverneed->vn_filename =
5905 bfd_elf_string_from_elf_section (abfd, hdr->sh_link,
5906 iverneed->vn_file);
5907 if (iverneed->vn_filename == NULL)
5908 goto error_return;
5909
dc810e39
AM		 5910 amt = iverneed->vn_cnt;
5911 amt *= sizeof (Elf_Internal_Vernaux);
5912 iverneed->vn_auxptr = (Elf_Internal_Vernaux *) bfd_alloc (abfd, amt);
252b5132
RH		 5913
5914 evernaux = ((Elf_External_Vernaux *)
5915 ((bfd_byte *) everneed + iverneed->vn_aux));
5916 ivernaux = iverneed->vn_auxptr;
5917 for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++)
5918 {
5919 _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux);
5920
5921 ivernaux->vna_nodename =
5922 bfd_elf_string_from_elf_section (abfd, hdr->sh_link,
5923 ivernaux->vna_name);
5924 if (ivernaux->vna_nodename == NULL)
5925 goto error_return;
5926
5927 if (j + 1 < iverneed->vn_cnt)
5928 ivernaux->vna_nextptr = ivernaux + 1;
5929 else
5930 ivernaux->vna_nextptr = NULL;
5931
5932 evernaux = ((Elf_External_Vernaux *)
5933 ((bfd_byte *) evernaux + ivernaux->vna_next));
5934 }
5935
5936 if (i + 1 < hdr->sh_info)
5937 iverneed->vn_nextref = iverneed + 1;
5938 else
5939 iverneed->vn_nextref = NULL;
5940
5941 everneed = ((Elf_External_Verneed *)
5942 ((bfd_byte *) everneed + iverneed->vn_next));
5943 }
5944
5945 free (contents);
5946 contents = NULL;
5947 }
5948
b34976b6 5949 return TRUE;
252b5132
RH		 5950
5951 error_return:
5ed6aba4 5952 if (contents != NULL)
252b5132 5953 free (contents);
b34976b6 5954 return FALSE;
252b5132
RH		 5955}
5956\f
5957asymbol *
5958_bfd_elf_make_empty_symbol (abfd)
5959 bfd *abfd;
5960{
5961 elf_symbol_type *newsym;
dc810e39 5962 bfd_size_type amt = sizeof (elf_symbol_type);
252b5132 5963
dc810e39 5964 newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt);
252b5132
RH		 5965 if (!newsym)
5966 return NULL;
5967 else
5968 {
5969 newsym->symbol.the_bfd = abfd;
5970 return &newsym->symbol;
5971 }
5972}
5973
5974void
5975_bfd_elf_get_symbol_info (ignore_abfd, symbol, ret)
7442e600 5976 bfd *ignore_abfd ATTRIBUTE_UNUSED;
252b5132
RH		 5977 asymbol *symbol;
5978 symbol_info *ret;
5979{
5980 bfd_symbol_info (symbol, ret);
5981}
5982
5983/* Return whether a symbol name implies a local symbol. Most targets
5984 use this function for the is_local_label_name entry point, but some
5985 override it. */
5986
b34976b6 5987bfd_boolean
252b5132 5988_bfd_elf_is_local_label_name (abfd, name)
7442e600 5989 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 5990 const char *name;
5991{
5992 /* Normal local symbols start with ``.L''. */
5993 if (name[0] == '.' && name[1] == 'L')
b34976b6 5994 return TRUE;
252b5132
RH		 5995
5996 /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate
5997 DWARF debugging symbols starting with ``..''. */
5998 if (name[0] == '.' && name[1] == '.')
b34976b6 5999 return TRUE;
252b5132
RH		 6000
6001 /* gcc will sometimes generate symbols beginning with ``_.L_'' when
6002 emitting DWARF debugging output. I suspect this is actually a
6003 small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call
6004 ASM_GENERATE_INTERNAL_LABEL, and this causes the leading
6005 underscore to be emitted on some ELF targets). For ease of use,
6006 we treat such symbols as local. */
6007 if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')
b34976b6 6008 return TRUE;
252b5132 6009
b34976b6 6010 return FALSE;
252b5132
RH		 6011}
6012
6013alent *
6014_bfd_elf_get_lineno (ignore_abfd, symbol)
7442e600
ILT		 6015 bfd *ignore_abfd ATTRIBUTE_UNUSED;
6016 asymbol *symbol ATTRIBUTE_UNUSED;
252b5132
RH		 6017{
6018 abort ();
6019 return NULL;
6020}
6021
b34976b6 6022bfd_boolean
252b5132
RH		 6023_bfd_elf_set_arch_mach (abfd, arch, machine)
6024 bfd *abfd;
6025 enum bfd_architecture arch;
6026 unsigned long machine;
6027{
6028 /* If this isn't the right architecture for this backend, and this
6029 isn't the generic backend, fail. */
6030 if (arch != get_elf_backend_data (abfd)->arch
6031 && arch != bfd_arch_unknown
6032 && get_elf_backend_data (abfd)->arch != bfd_arch_unknown)
b34976b6 6033 return FALSE;
252b5132
RH		 6034
6035 return bfd_default_set_arch_mach (abfd, arch, machine);
6036}
6037
d1fad7c6
NC		 6038/* Find the function to a particular section and offset,
6039 for error reporting. */
252b5132 6040
b34976b6 6041static bfd_boolean
d1fad7c6 6042elf_find_function (abfd, section, symbols, offset,
4e8a9624 6043 filename_ptr, functionname_ptr)
d1fad7c6 6044 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 6045 asection *section;
6046 asymbol **symbols;
6047 bfd_vma offset;
4e8a9624
AM		 6048 const char **filename_ptr;
6049 const char **functionname_ptr;
252b5132 6050{
252b5132
RH		 6051 const char *filename;
6052 asymbol *func;
6053 bfd_vma low_func;
6054 asymbol **p;
6055
252b5132
RH		 6056 filename = NULL;
6057 func = NULL;
6058 low_func = 0;
6059
6060 for (p = symbols; *p != NULL; p++)
6061 {
6062 elf_symbol_type *q;
6063
6064 q = (elf_symbol_type *) *p;
6065
6066 if (bfd_get_section (&q->symbol) != section)
6067 continue;
6068
6069 switch (ELF_ST_TYPE (q->internal_elf_sym.st_info))
6070 {
6071 default:
6072 break;
6073 case STT_FILE:
6074 filename = bfd_asymbol_name (&q->symbol);
6075 break;
6076 case STT_NOTYPE:
6077 case STT_FUNC:
6078 if (q->symbol.section == section
6079 && q->symbol.value >= low_func
6080 && q->symbol.value <= offset)
6081 {
6082 func = (asymbol *) q;
6083 low_func = q->symbol.value;
6084 }
6085 break;
6086 }
6087 }
6088
6089 if (func == NULL)
b34976b6 6090 return FALSE;
252b5132 6091
d1fad7c6
NC		 6092 if (filename_ptr)
6093 *filename_ptr = filename;
6094 if (functionname_ptr)
6095 *functionname_ptr = bfd_asymbol_name (func);
6096
b34976b6 6097 return TRUE;
d1fad7c6
NC		 6098}
6099
6100/* Find the nearest line to a particular section and offset,
6101 for error reporting. */
6102
b34976b6 6103bfd_boolean
d1fad7c6 6104_bfd_elf_find_nearest_line (abfd, section, symbols, offset,
4e8a9624 6105 filename_ptr, functionname_ptr, line_ptr)
d1fad7c6
NC		 6106 bfd *abfd;
6107 asection *section;
6108 asymbol **symbols;
6109 bfd_vma offset;
4e8a9624
AM		 6110 const char **filename_ptr;
6111 const char **functionname_ptr;
d1fad7c6
NC		 6112 unsigned int *line_ptr;
6113{
b34976b6 6114 bfd_boolean found;
d1fad7c6
NC		 6115
6116 if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
4e8a9624
AM		 6117 filename_ptr, functionname_ptr,
6118 line_ptr))
d1fad7c6
NC		 6119 {
6120 if (!*functionname_ptr)
4e8a9624
AM		 6121 elf_find_function (abfd, section, symbols, offset,
6122 *filename_ptr ? NULL : filename_ptr,
6123 functionname_ptr);
6124
b34976b6 6125 return TRUE;
d1fad7c6
NC		 6126 }
6127
6128 if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
4e8a9624
AM		 6129 filename_ptr, functionname_ptr,
6130 line_ptr, 0,
6131 &elf_tdata (abfd)->dwarf2_find_line_info))
d1fad7c6
NC		 6132 {
6133 if (!*functionname_ptr)
4e8a9624
AM		 6134 elf_find_function (abfd, section, symbols, offset,
6135 *filename_ptr ? NULL : filename_ptr,
6136 functionname_ptr);
6137
b34976b6 6138 return TRUE;
d1fad7c6
NC		 6139 }
6140
6141 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
4e8a9624
AM		 6142 &found, filename_ptr,
6143 functionname_ptr, line_ptr,
6144 &elf_tdata (abfd)->line_info))
b34976b6 6145 return FALSE;
dc43ada5 6146 if (found && (*functionname_ptr || *line_ptr))
b34976b6 6147 return TRUE;
d1fad7c6
NC		 6148
6149 if (symbols == NULL)
b34976b6 6150 return FALSE;
d1fad7c6
NC		 6151
6152 if (! elf_find_function (abfd, section, symbols, offset,
4e8a9624 6153 filename_ptr, functionname_ptr))
b34976b6 6154 return FALSE;
d1fad7c6 6155
252b5132 6156 *line_ptr = 0;
b34976b6 6157 return TRUE;
252b5132
RH		 6158}
6159
6160int
6161_bfd_elf_sizeof_headers (abfd, reloc)
6162 bfd *abfd;
b34976b6 6163 bfd_boolean reloc;
252b5132
RH		 6164{
6165 int ret;
6166
6167 ret = get_elf_backend_data (abfd)->s->sizeof_ehdr;
6168 if (! reloc)
6169 ret += get_program_header_size (abfd);
6170 return ret;
6171}
6172
b34976b6 6173bfd_boolean
252b5132
RH		 6174_bfd_elf_set_section_contents (abfd, section, location, offset, count)
6175 bfd *abfd;
6176 sec_ptr section;
6177 PTR location;
6178 file_ptr offset;
6179 bfd_size_type count;
6180{
6181 Elf_Internal_Shdr *hdr;
dc810e39 6182 bfd_signed_vma pos;
252b5132
RH		 6183
6184 if (! abfd->output_has_begun
82e51918
AM		 6185 && ! (_bfd_elf_compute_section_file_positions
6186 (abfd, (struct bfd_link_info *) NULL)))
b34976b6 6187 return FALSE;
252b5132
RH		 6188
6189 hdr = &elf_section_data (section)->this_hdr;
dc810e39
AM		 6190 pos = hdr->sh_offset + offset;
6191 if (bfd_seek (abfd, pos, SEEK_SET) != 0
6192 || bfd_bwrite (location, count, abfd) != count)
b34976b6 6193 return FALSE;
252b5132 6194
b34976b6 6195 return TRUE;
252b5132
RH		 6196}
6197
6198void
6199_bfd_elf_no_info_to_howto (abfd, cache_ptr, dst)
7442e600
ILT		 6200 bfd *abfd ATTRIBUTE_UNUSED;
6201 arelent *cache_ptr ATTRIBUTE_UNUSED;
6202 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED;
252b5132
RH		 6203{
6204 abort ();
6205}
6206
252b5132
RH		 6207/* Try to convert a non-ELF reloc into an ELF one. */
6208
b34976b6 6209bfd_boolean
252b5132
RH		 6210_bfd_elf_validate_reloc (abfd, areloc)
6211 bfd *abfd;
6212 arelent *areloc;
6213{
c044fabd 6214 /* Check whether we really have an ELF howto. */
252b5132
RH		 6215
6216 if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec)
6217 {
6218 bfd_reloc_code_real_type code;
6219 reloc_howto_type *howto;
6220
6221 /* Alien reloc: Try to determine its type to replace it with an
c044fabd 6222 equivalent ELF reloc. */
252b5132
RH		 6223
6224 if (areloc->howto->pc_relative)
6225 {
6226 switch (areloc->howto->bitsize)
6227 {
6228 case 8:
6229 code = BFD_RELOC_8_PCREL;
6230 break;
6231 case 12:
6232 code = BFD_RELOC_12_PCREL;
6233 break;
6234 case 16:
6235 code = BFD_RELOC_16_PCREL;
6236 break;
6237 case 24:
6238 code = BFD_RELOC_24_PCREL;
6239 break;
6240 case 32:
6241 code = BFD_RELOC_32_PCREL;
6242 break;
6243 case 64:
6244 code = BFD_RELOC_64_PCREL;
6245 break;
6246 default:
6247 goto fail;
6248 }
6249
6250 howto = bfd_reloc_type_lookup (abfd, code);
6251
6252 if (areloc->howto->pcrel_offset != howto->pcrel_offset)
6253 {
6254 if (howto->pcrel_offset)
6255 areloc->addend += areloc->address;
6256 else
6257 areloc->addend -= areloc->address; /* addend is unsigned!! */
6258 }
6259 }
6260 else
6261 {
6262 switch (areloc->howto->bitsize)
6263 {
6264 case 8:
6265 code = BFD_RELOC_8;
6266 break;
6267 case 14:
6268 code = BFD_RELOC_14;
6269 break;
6270 case 16:
6271 code = BFD_RELOC_16;
6272 break;
6273 case 26:
6274 code = BFD_RELOC_26;
6275 break;
6276 case 32:
6277 code = BFD_RELOC_32;
6278 break;
6279 case 64:
6280 code = BFD_RELOC_64;
6281 break;
6282 default:
6283 goto fail;
6284 }
6285
6286 howto = bfd_reloc_type_lookup (abfd, code);
6287 }
6288
6289 if (howto)
6290 areloc->howto = howto;
6291 else
6292 goto fail;
6293 }
6294
b34976b6 6295 return TRUE;
252b5132
RH		 6296
6297 fail:
6298 (*_bfd_error_handler)
6299 (_("%s: unsupported relocation type %s"),
8f615d07 6300 bfd_archive_filename (abfd), areloc->howto->name);
252b5132 6301 bfd_set_error (bfd_error_bad_value);
b34976b6 6302 return FALSE;
252b5132
RH		 6303}
6304
b34976b6 6305bfd_boolean
252b5132
RH		 6306_bfd_elf_close_and_cleanup (abfd)
6307 bfd *abfd;
6308{
6309 if (bfd_get_format (abfd) == bfd_object)
6310 {
6311 if (elf_shstrtab (abfd) != NULL)
2b0f7ef9 6312 _bfd_elf_strtab_free (elf_shstrtab (abfd));
252b5132
RH		 6313 }
6314
6315 return _bfd_generic_close_and_cleanup (abfd);
6316}
6317
6318/* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY
6319 in the relocation's offset. Thus we cannot allow any sort of sanity
6320 range-checking to interfere. There is nothing else to do in processing
6321 this reloc. */
6322
6323bfd_reloc_status_type
6324_bfd_elf_rel_vtable_reloc_fn (abfd, re, symbol, data, is, obfd, errmsg)
7442e600
ILT		 6325 bfd *abfd ATTRIBUTE_UNUSED;
6326 arelent *re ATTRIBUTE_UNUSED;
6327 struct symbol_cache_entry *symbol ATTRIBUTE_UNUSED;
6328 PTR data ATTRIBUTE_UNUSED;
6329 asection *is ATTRIBUTE_UNUSED;
6330 bfd *obfd ATTRIBUTE_UNUSED;
6331 char **errmsg ATTRIBUTE_UNUSED;
252b5132
RH		 6332{
6333 return bfd_reloc_ok;
6334}
252b5132
RH		 6335\f
6336/* Elf core file support. Much of this only works on native
6337 toolchains, since we rely on knowing the
6338 machine-dependent procfs structure in order to pick
c044fabd 6339 out details about the corefile. */
252b5132
RH		 6340
6341#ifdef HAVE_SYS_PROCFS_H
6342# include <sys/procfs.h>
6343#endif
6344
c044fabd 6345/* FIXME: this is kinda wrong, but it's what gdb wants. */
252b5132
RH		 6346
6347static int
6348elfcore_make_pid (abfd)
c044fabd 6349 bfd *abfd;
252b5132
RH		 6350{
6351 return ((elf_tdata (abfd)->core_lwpid << 16)
6352 + (elf_tdata (abfd)->core_pid));
6353}
6354
252b5132
RH		 6355/* If there isn't a section called NAME, make one, using
6356 data from SECT. Note, this function will generate a
6357 reference to NAME, so you shouldn't deallocate or
c044fabd 6358 overwrite it. */
252b5132 6359
b34976b6 6360static bfd_boolean
252b5132 6361elfcore_maybe_make_sect (abfd, name, sect)
c044fabd
KH		 6362 bfd *abfd;
6363 char *name;
6364 asection *sect;
252b5132 6365{
c044fabd 6366 asection *sect2;
252b5132
RH		 6367
6368 if (bfd_get_section_by_name (abfd, name) != NULL)
b34976b6 6369 return TRUE;
252b5132
RH		 6370
6371 sect2 = bfd_make_section (abfd, name);
6372 if (sect2 == NULL)
b34976b6 6373 return FALSE;
252b5132
RH		 6374
6375 sect2->_raw_size = sect->_raw_size;
6376 sect2->filepos = sect->filepos;
6377 sect2->flags = sect->flags;
6378 sect2->alignment_power = sect->alignment_power;
b34976b6 6379 return TRUE;
252b5132
RH		 6380}
6381
bb0082d6
AM		 6382/* Create a pseudosection containing SIZE bytes at FILEPOS. This
6383 actually creates up to two pseudosections:
6384 - For the single-threaded case, a section named NAME, unless
6385 such a section already exists.
6386 - For the multi-threaded case, a section named "NAME/PID", where
6387 PID is elfcore_make_pid (abfd).
6388 Both pseudosections have identical contents. */
b34976b6 6389bfd_boolean
bb0082d6
AM		 6390_bfd_elfcore_make_pseudosection (abfd, name, size, filepos)
6391 bfd *abfd;
6392 char *name;
dc810e39
AM		 6393 size_t size;
6394 ufile_ptr filepos;
bb0082d6
AM		 6395{
6396 char buf[100];
6397 char *threaded_name;
d4c88bbb 6398 size_t len;
bb0082d6
AM		 6399 asection *sect;
6400
6401 /* Build the section name. */
6402
6403 sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd));
d4c88bbb
AM		 6404 len = strlen (buf) + 1;
6405 threaded_name = bfd_alloc (abfd, (bfd_size_type) len);
bb0082d6 6406 if (threaded_name == NULL)
b34976b6 6407 return FALSE;
d4c88bbb 6408 memcpy (threaded_name, buf, len);
bb0082d6
AM		 6409
6410 sect = bfd_make_section (abfd, threaded_name);
6411 if (sect == NULL)
b34976b6 6412 return FALSE;
bb0082d6
AM		 6413 sect->_raw_size = size;
6414 sect->filepos = filepos;
6415 sect->flags = SEC_HAS_CONTENTS;
6416 sect->alignment_power = 2;
6417
936e320b 6418 return elfcore_maybe_make_sect (abfd, name, sect);
bb0082d6
AM		 6419}
6420
252b5132 6421/* prstatus_t exists on:
4a938328 6422 solaris 2.5+
252b5132
RH		 6423 linux 2.[01] + glibc
6424 unixware 4.2
6425*/
6426
6427#if defined (HAVE_PRSTATUS_T)
b34976b6
AM		 6428static bfd_boolean elfcore_grok_prstatus
6429 PARAMS ((bfd *, Elf_Internal_Note *));
a7b97311 6430
b34976b6 6431static bfd_boolean
252b5132 6432elfcore_grok_prstatus (abfd, note)
c044fabd
KH		 6433 bfd *abfd;
6434 Elf_Internal_Note *note;
252b5132 6435{
dc810e39 6436 size_t raw_size;
7ee38065 6437 int offset;
252b5132 6438
4a938328
MS		 6439 if (note->descsz == sizeof (prstatus_t))
6440 {
6441 prstatus_t prstat;
252b5132 6442
e0ebfc61 6443 raw_size = sizeof (prstat.pr_reg);
7ee38065 6444 offset = offsetof (prstatus_t, pr_reg);
4a938328 6445 memcpy (&prstat, note->descdata, sizeof (prstat));
252b5132 6446
fa49d224
NC		 6447 /* Do not overwrite the core signal if it
6448 has already been set by another thread. */
6449 if (elf_tdata (abfd)->core_signal == 0)
6450 elf_tdata (abfd)->core_signal = prstat.pr_cursig;
4a938328 6451 elf_tdata (abfd)->core_pid = prstat.pr_pid;
252b5132 6452
4a938328
MS		 6453 /* pr_who exists on:
6454 solaris 2.5+
6455 unixware 4.2
6456 pr_who doesn't exist on:
6457 linux 2.[01]
6458 */
252b5132 6459#if defined (HAVE_PRSTATUS_T_PR_WHO)
4a938328 6460 elf_tdata (abfd)->core_lwpid = prstat.pr_who;
252b5132 6461#endif
4a938328 6462 }
7ee38065 6463#if defined (HAVE_PRSTATUS32_T)
4a938328
MS		 6464 else if (note->descsz == sizeof (prstatus32_t))
6465 {
6466 /* 64-bit host, 32-bit corefile */
6467 prstatus32_t prstat;
6468
e0ebfc61 6469 raw_size = sizeof (prstat.pr_reg);
7ee38065 6470 offset = offsetof (prstatus32_t, pr_reg);
4a938328
MS		 6471 memcpy (&prstat, note->descdata, sizeof (prstat));
6472
fa49d224
NC		 6473 /* Do not overwrite the core signal if it
6474 has already been set by another thread. */
6475 if (elf_tdata (abfd)->core_signal == 0)
6476 elf_tdata (abfd)->core_signal = prstat.pr_cursig;
4a938328
MS		 6477 elf_tdata (abfd)->core_pid = prstat.pr_pid;
6478
6479 /* pr_who exists on:
6480 solaris 2.5+
6481 unixware 4.2
6482 pr_who doesn't exist on:
6483 linux 2.[01]
6484 */
7ee38065 6485#if defined (HAVE_PRSTATUS32_T_PR_WHO)
4a938328
MS		 6486 elf_tdata (abfd)->core_lwpid = prstat.pr_who;
6487#endif
6488 }
7ee38065 6489#endif /* HAVE_PRSTATUS32_T */
4a938328
MS		 6490 else
6491 {
6492 /* Fail - we don't know how to handle any other
6493 note size (ie. data object type). */
b34976b6 6494 return TRUE;
4a938328 6495 }
252b5132 6496
bb0082d6 6497 /* Make a ".reg/999" section and a ".reg" section. */
936e320b
AM		 6498 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
6499 raw_size, note->descpos + offset);
252b5132
RH		 6500}
6501#endif /* defined (HAVE_PRSTATUS_T) */
6502
bb0082d6 6503/* Create a pseudosection containing the exact contents of NOTE. */
b34976b6 6504static bfd_boolean
ff08c6bb 6505elfcore_make_note_pseudosection (abfd, name, note)
c044fabd 6506 bfd *abfd;
ff08c6bb 6507 char *name;
c044fabd 6508 Elf_Internal_Note *note;
252b5132 6509{
936e320b
AM		 6510 return _bfd_elfcore_make_pseudosection (abfd, name,
6511 note->descsz, note->descpos);
252b5132
RH		 6512}
6513
ff08c6bb
JB		 6514/* There isn't a consistent prfpregset_t across platforms,
6515 but it doesn't matter, because we don't have to pick this
c044fabd
KH		 6516 data structure apart. */
6517
b34976b6 6518static bfd_boolean
ff08c6bb 6519elfcore_grok_prfpreg (abfd, note)
c044fabd
KH		 6520 bfd *abfd;
6521 Elf_Internal_Note *note;
ff08c6bb
JB		 6522{
6523 return elfcore_make_note_pseudosection (abfd, ".reg2", note);
6524}
6525
ff08c6bb
JB		 6526/* Linux dumps the Intel SSE regs in a note named "LINUX" with a note
6527 type of 5 (NT_PRXFPREG). Just include the whole note's contents
6528 literally. */
c044fabd 6529
b34976b6 6530static bfd_boolean
ff08c6bb 6531elfcore_grok_prxfpreg (abfd, note)
c044fabd
KH		 6532 bfd *abfd;
6533 Elf_Internal_Note *note;
ff08c6bb
JB		 6534{
6535 return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note);
6536}
6537
252b5132 6538#if defined (HAVE_PRPSINFO_T)
4a938328 6539typedef prpsinfo_t elfcore_psinfo_t;
7ee38065 6540#if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */
4a938328
MS		 6541typedef prpsinfo32_t elfcore_psinfo32_t;
6542#endif
252b5132
RH		 6543#endif
6544
6545#if defined (HAVE_PSINFO_T)
4a938328 6546typedef psinfo_t elfcore_psinfo_t;
7ee38065 6547#if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */
4a938328
MS		 6548typedef psinfo32_t elfcore_psinfo32_t;
6549#endif
252b5132
RH		 6550#endif
6551
252b5132
RH		 6552/* return a malloc'ed copy of a string at START which is at
6553 most MAX bytes long, possibly without a terminating '\0'.
c044fabd 6554 the copy will always have a terminating '\0'. */
252b5132 6555
936e320b 6556char *
bb0082d6 6557_bfd_elfcore_strndup (abfd, start, max)
c044fabd
KH		 6558 bfd *abfd;
6559 char *start;
dc810e39 6560 size_t max;
252b5132 6561{
dc810e39 6562 char *dups;
c044fabd 6563 char *end = memchr (start, '\0', max);
dc810e39 6564 size_t len;
252b5132
RH		 6565
6566 if (end == NULL)
6567 len = max;
6568 else
6569 len = end - start;
6570
dc810e39
AM		 6571 dups = bfd_alloc (abfd, (bfd_size_type) len + 1);
6572 if (dups == NULL)
252b5132
RH		 6573 return NULL;
6574
dc810e39
AM		 6575 memcpy (dups, start, len);
6576 dups[len] = '\0';
252b5132 6577
dc810e39 6578 return dups;
252b5132
RH		 6579}
6580
bb0082d6 6581#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
b34976b6
AM		 6582static bfd_boolean elfcore_grok_psinfo
6583 PARAMS ((bfd *, Elf_Internal_Note *));
bb0082d6 6584
b34976b6 6585static bfd_boolean
252b5132 6586elfcore_grok_psinfo (abfd, note)
c044fabd
KH		 6587 bfd *abfd;
6588 Elf_Internal_Note *note;
252b5132 6589{
4a938328
MS		 6590 if (note->descsz == sizeof (elfcore_psinfo_t))
6591 {
6592 elfcore_psinfo_t psinfo;
252b5132 6593
7ee38065 6594 memcpy (&psinfo, note->descdata, sizeof (psinfo));
252b5132 6595
4a938328 6596 elf_tdata (abfd)->core_program
936e320b
AM		 6597 = _bfd_elfcore_strndup (abfd, psinfo.pr_fname,
6598 sizeof (psinfo.pr_fname));
252b5132 6599
4a938328 6600 elf_tdata (abfd)->core_command
936e320b
AM		 6601 = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs,
6602 sizeof (psinfo.pr_psargs));
4a938328 6603 }
7ee38065 6604#if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T)
4a938328
MS		 6605 else if (note->descsz == sizeof (elfcore_psinfo32_t))
6606 {
6607 /* 64-bit host, 32-bit corefile */
6608 elfcore_psinfo32_t psinfo;
6609
7ee38065 6610 memcpy (&psinfo, note->descdata, sizeof (psinfo));
252b5132 6611
4a938328 6612 elf_tdata (abfd)->core_program
936e320b
AM		 6613 = _bfd_elfcore_strndup (abfd, psinfo.pr_fname,
6614 sizeof (psinfo.pr_fname));
4a938328
MS		 6615
6616 elf_tdata (abfd)->core_command
936e320b
AM		 6617 = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs,
6618 sizeof (psinfo.pr_psargs));
4a938328
MS		 6619 }
6620#endif
6621
6622 else
6623 {
6624 /* Fail - we don't know how to handle any other
6625 note size (ie. data object type). */
b34976b6 6626 return TRUE;
4a938328 6627 }
252b5132
RH		 6628
6629 /* Note that for some reason, a spurious space is tacked
6630 onto the end of the args in some (at least one anyway)
c044fabd 6631 implementations, so strip it off if it exists. */
252b5132
RH		 6632
6633 {
c044fabd 6634 char *command = elf_tdata (abfd)->core_command;
252b5132
RH		 6635 int n = strlen (command);
6636
6637 if (0 < n && command[n - 1] == ' ')
6638 command[n - 1] = '\0';
6639 }
6640
b34976b6 6641 return TRUE;
252b5132
RH		 6642}
6643#endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */
6644
252b5132 6645#if defined (HAVE_PSTATUS_T)
b34976b6
AM		 6646static bfd_boolean elfcore_grok_pstatus
6647 PARAMS ((bfd *, Elf_Internal_Note *));
51316059 6648
b34976b6 6649static bfd_boolean
252b5132 6650elfcore_grok_pstatus (abfd, note)
c044fabd
KH		 6651 bfd *abfd;
6652 Elf_Internal_Note *note;
252b5132 6653{
f572a39d
AM		 6654 if (note->descsz == sizeof (pstatus_t)
6655#if defined (HAVE_PXSTATUS_T)
6656 || note->descsz == sizeof (pxstatus_t)
6657#endif
6658 )
4a938328
MS		 6659 {
6660 pstatus_t pstat;
252b5132 6661
4a938328 6662 memcpy (&pstat, note->descdata, sizeof (pstat));
252b5132 6663
4a938328
MS		 6664 elf_tdata (abfd)->core_pid = pstat.pr_pid;
6665 }
7ee38065 6666#if defined (HAVE_PSTATUS32_T)
4a938328
MS		 6667 else if (note->descsz == sizeof (pstatus32_t))
6668 {
6669 /* 64-bit host, 32-bit corefile */
6670 pstatus32_t pstat;
252b5132 6671
4a938328 6672 memcpy (&pstat, note->descdata, sizeof (pstat));
252b5132 6673
4a938328
MS		 6674 elf_tdata (abfd)->core_pid = pstat.pr_pid;
6675 }
6676#endif
252b5132
RH		 6677 /* Could grab some more details from the "representative"
6678 lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an
c044fabd 6679 NT_LWPSTATUS note, presumably. */
252b5132 6680
b34976b6 6681 return TRUE;
252b5132
RH		 6682}
6683#endif /* defined (HAVE_PSTATUS_T) */
6684
252b5132 6685#if defined (HAVE_LWPSTATUS_T)
b34976b6
AM		 6686static bfd_boolean elfcore_grok_lwpstatus
6687 PARAMS ((bfd *, Elf_Internal_Note *));
51316059 6688
b34976b6 6689static bfd_boolean
252b5132 6690elfcore_grok_lwpstatus (abfd, note)
c044fabd
KH		 6691 bfd *abfd;
6692 Elf_Internal_Note *note;
252b5132
RH		 6693{
6694 lwpstatus_t lwpstat;
6695 char buf[100];
c044fabd 6696 char *name;
d4c88bbb 6697 size_t len;
c044fabd 6698 asection *sect;
252b5132 6699
f572a39d
AM		 6700 if (note->descsz != sizeof (lwpstat)
6701#if defined (HAVE_LWPXSTATUS_T)
6702 && note->descsz != sizeof (lwpxstatus_t)
6703#endif
6704 )
b34976b6 6705 return TRUE;
252b5132
RH		 6706
6707 memcpy (&lwpstat, note->descdata, sizeof (lwpstat));
6708
6709 elf_tdata (abfd)->core_lwpid = lwpstat.pr_lwpid;
6710 elf_tdata (abfd)->core_signal = lwpstat.pr_cursig;
6711
c044fabd 6712 /* Make a ".reg/999" section. */
252b5132
RH		 6713
6714 sprintf (buf, ".reg/%d", elfcore_make_pid (abfd));
d4c88bbb
AM		 6715 len = strlen (buf) + 1;
6716 name = bfd_alloc (abfd, (bfd_size_type) len);
252b5132 6717 if (name == NULL)
b34976b6 6718 return FALSE;
d4c88bbb 6719 memcpy (name, buf, len);
252b5132
RH		 6720
6721 sect = bfd_make_section (abfd, name);
6722 if (sect == NULL)
b34976b6 6723 return FALSE;
252b5132
RH		 6724
6725#if defined (HAVE_LWPSTATUS_T_PR_CONTEXT)
6726 sect->_raw_size = sizeof (lwpstat.pr_context.uc_mcontext.gregs);
6727 sect->filepos = note->descpos
6728 + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs);
6729#endif
6730
6731#if defined (HAVE_LWPSTATUS_T_PR_REG)
6732 sect->_raw_size = sizeof (lwpstat.pr_reg);
6733 sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg);
6734#endif
6735
6736 sect->flags = SEC_HAS_CONTENTS;
6737 sect->alignment_power = 2;
6738
6739 if (!elfcore_maybe_make_sect (abfd, ".reg", sect))
b34976b6 6740 return FALSE;
252b5132
RH		 6741
6742 /* Make a ".reg2/999" section */
6743
6744 sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd));
d4c88bbb
AM		 6745 len = strlen (buf) + 1;
6746 name = bfd_alloc (abfd, (bfd_size_type) len);
252b5132 6747 if (name == NULL)
b34976b6 6748 return FALSE;
d4c88bbb 6749 memcpy (name, buf, len);
252b5132
RH		 6750
6751 sect = bfd_make_section (abfd, name);
6752 if (sect == NULL)
b34976b6 6753 return FALSE;
252b5132
RH		 6754
6755#if defined (HAVE_LWPSTATUS_T_PR_CONTEXT)
6756 sect->_raw_size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs);
6757 sect->filepos = note->descpos
6758 + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs);
6759#endif
6760
6761#if defined (HAVE_LWPSTATUS_T_PR_FPREG)
6762 sect->_raw_size = sizeof (lwpstat.pr_fpreg);
6763 sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg);
6764#endif
6765
6766 sect->flags = SEC_HAS_CONTENTS;
6767 sect->alignment_power = 2;
6768
936e320b 6769 return elfcore_maybe_make_sect (abfd, ".reg2", sect);
252b5132
RH		 6770}
6771#endif /* defined (HAVE_LWPSTATUS_T) */
6772
16e9c715 6773#if defined (HAVE_WIN32_PSTATUS_T)
b34976b6 6774static bfd_boolean
16e9c715 6775elfcore_grok_win32pstatus (abfd, note)
c044fabd
KH		 6776 bfd *abfd;
6777 Elf_Internal_Note *note;
16e9c715
NC		 6778{
6779 char buf[30];
c044fabd 6780 char *name;
d4c88bbb 6781 size_t len;
c044fabd 6782 asection *sect;
16e9c715
NC		 6783 win32_pstatus_t pstatus;
6784
6785 if (note->descsz < sizeof (pstatus))
b34976b6 6786 return TRUE;
16e9c715 6787
e8eab623 6788 memcpy (&pstatus, note->descdata, sizeof (pstatus));
c044fabd
KH		 6789
6790 switch (pstatus.data_type)
16e9c715
NC		 6791 {
6792 case NOTE_INFO_PROCESS:
6793 /* FIXME: need to add ->core_command. */
6794 elf_tdata (abfd)->core_signal = pstatus.data.process_info.signal;
6795 elf_tdata (abfd)->core_pid = pstatus.data.process_info.pid;
c044fabd 6796 break;
16e9c715
NC		 6797
6798 case NOTE_INFO_THREAD:
6799 /* Make a ".reg/999" section. */
6800 sprintf (buf, ".reg/%d", pstatus.data.thread_info.tid);
c044fabd 6801
d4c88bbb
AM		 6802 len = strlen (buf) + 1;
6803 name = bfd_alloc (abfd, (bfd_size_type) len);
16e9c715 6804 if (name == NULL)
b34976b6 6805 return FALSE;
c044fabd 6806
d4c88bbb 6807 memcpy (name, buf, len);
16e9c715
NC		 6808
6809 sect = bfd_make_section (abfd, name);
6810 if (sect == NULL)
b34976b6 6811 return FALSE;
c044fabd 6812
16e9c715 6813 sect->_raw_size = sizeof (pstatus.data.thread_info.thread_context);
079e9a2f
AM		 6814 sect->filepos = (note->descpos
6815 + offsetof (struct win32_pstatus,
6816 data.thread_info.thread_context));
16e9c715
NC		 6817 sect->flags = SEC_HAS_CONTENTS;
6818 sect->alignment_power = 2;
6819
6820 if (pstatus.data.thread_info.is_active_thread)
6821 if (! elfcore_maybe_make_sect (abfd, ".reg", sect))
b34976b6 6822 return FALSE;
16e9c715
NC		 6823 break;
6824
6825 case NOTE_INFO_MODULE:
6826 /* Make a ".module/xxxxxxxx" section. */
c044fabd
KH		 6827 sprintf (buf, ".module/%08x", pstatus.data.module_info.base_address);
6828
d4c88bbb
AM		 6829 len = strlen (buf) + 1;
6830 name = bfd_alloc (abfd, (bfd_size_type) len);
16e9c715 6831 if (name == NULL)
b34976b6 6832 return FALSE;
c044fabd 6833
d4c88bbb 6834 memcpy (name, buf, len);
252b5132 6835
16e9c715 6836 sect = bfd_make_section (abfd, name);
c044fabd 6837
16e9c715 6838 if (sect == NULL)
b34976b6 6839 return FALSE;
c044fabd 6840
16e9c715
NC		 6841 sect->_raw_size = note->descsz;
6842 sect->filepos = note->descpos;
6843 sect->flags = SEC_HAS_CONTENTS;
6844 sect->alignment_power = 2;
6845 break;
6846
6847 default:
b34976b6 6848 return TRUE;
16e9c715
NC		 6849 }
6850
b34976b6 6851 return TRUE;
16e9c715
NC		 6852}
6853#endif /* HAVE_WIN32_PSTATUS_T */
252b5132 6854
b34976b6 6855static bfd_boolean
252b5132 6856elfcore_grok_note (abfd, note)
c044fabd
KH		 6857 bfd *abfd;
6858 Elf_Internal_Note *note;
252b5132 6859{
bb0082d6
AM		 6860 struct elf_backend_data *bed = get_elf_backend_data (abfd);
6861
252b5132
RH		 6862 switch (note->type)
6863 {
6864 default:
b34976b6 6865 return TRUE;
252b5132 6866
252b5132 6867 case NT_PRSTATUS:
bb0082d6
AM		 6868 if (bed->elf_backend_grok_prstatus)
6869 if ((*bed->elf_backend_grok_prstatus) (abfd, note))
b34976b6 6870 return TRUE;
bb0082d6 6871#if defined (HAVE_PRSTATUS_T)
252b5132 6872 return elfcore_grok_prstatus (abfd, note);
bb0082d6 6873#else
b34976b6 6874 return TRUE;
252b5132
RH		 6875#endif
6876
6877#if defined (HAVE_PSTATUS_T)
6878 case NT_PSTATUS:
6879 return elfcore_grok_pstatus (abfd, note);
6880#endif
6881
6882#if defined (HAVE_LWPSTATUS_T)
6883 case NT_LWPSTATUS:
6884 return elfcore_grok_lwpstatus (abfd, note);
6885#endif
6886
6887 case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */
6888 return elfcore_grok_prfpreg (abfd, note);
6889
16e9c715 6890#if defined (HAVE_WIN32_PSTATUS_T)
c044fabd 6891 case NT_WIN32PSTATUS:
16e9c715
NC		 6892 return elfcore_grok_win32pstatus (abfd, note);
6893#endif
6894
c044fabd 6895 case NT_PRXFPREG: /* Linux SSE extension */
e377ab71
MK		 6896 if (note->namesz == 6
6897 && strcmp (note->namedata, "LINUX") == 0)
ff08c6bb
JB		 6898 return elfcore_grok_prxfpreg (abfd, note);
6899 else
b34976b6 6900 return TRUE;
ff08c6bb 6901
252b5132
RH		 6902 case NT_PRPSINFO:
6903 case NT_PSINFO:
bb0082d6
AM		 6904 if (bed->elf_backend_grok_psinfo)
6905 if ((*bed->elf_backend_grok_psinfo) (abfd, note))
b34976b6 6906 return TRUE;
bb0082d6 6907#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
252b5132 6908 return elfcore_grok_psinfo (abfd, note);
bb0082d6 6909#else
b34976b6 6910 return TRUE;
252b5132 6911#endif
3333a7c3
RM		 6912
6913 case NT_AUXV:
6914 {
6915 asection *sect = bfd_make_section (abfd, ".auxv");
6916
6917 if (sect == NULL)
6918 return FALSE;
6919 sect->_raw_size = note->descsz;
6920 sect->filepos = note->descpos;
6921 sect->flags = SEC_HAS_CONTENTS;
6922 sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32;
6923
6924 return TRUE;
6925 }
252b5132
RH		 6926 }
6927}
6928
b34976b6 6929static bfd_boolean
50b2bdb7
AM		 6930elfcore_netbsd_get_lwpid (note, lwpidp)
6931 Elf_Internal_Note *note;
6932 int *lwpidp;
6933{
6934 char *cp;
6935
6936 cp = strchr (note->namedata, '@');
6937 if (cp != NULL)
6938 {
d2b64500 6939 *lwpidp = atoi(cp + 1);
b34976b6 6940 return TRUE;
50b2bdb7 6941 }
b34976b6 6942 return FALSE;
50b2bdb7
AM		 6943}
6944
b34976b6 6945static bfd_boolean
50b2bdb7
AM		 6946elfcore_grok_netbsd_procinfo (abfd, note)
6947 bfd *abfd;
6948 Elf_Internal_Note *note;
6949{
6950
6951 /* Signal number at offset 0x08. */
6952 elf_tdata (abfd)->core_signal
6953 = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08);
6954
6955 /* Process ID at offset 0x50. */
6956 elf_tdata (abfd)->core_pid
6957 = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50);
6958
6959 /* Command name at 0x7c (max 32 bytes, including nul). */
6960 elf_tdata (abfd)->core_command
6961 = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31);
6962
b34976b6 6963 return TRUE;
50b2bdb7
AM		 6964}
6965
b34976b6 6966static bfd_boolean
50b2bdb7
AM		 6967elfcore_grok_netbsd_note (abfd, note)
6968 bfd *abfd;
6969 Elf_Internal_Note *note;
6970{
6971 int lwp;
6972
6973 if (elfcore_netbsd_get_lwpid (note, &lwp))
6974 elf_tdata (abfd)->core_lwpid = lwp;
6975
b4db1224 6976 if (note->type == NT_NETBSDCORE_PROCINFO)
50b2bdb7
AM		 6977 {
6978 /* NetBSD-specific core "procinfo". Note that we expect to
6979 find this note before any of the others, which is fine,
6980 since the kernel writes this note out first when it
6981 creates a core file. */
47d9a591 6982
50b2bdb7
AM		 6983 return elfcore_grok_netbsd_procinfo (abfd, note);
6984 }
6985
b4db1224
JT		 6986 /* As of Jan 2002 there are no other machine-independent notes
6987 defined for NetBSD core files. If the note type is less
6988 than the start of the machine-dependent note types, we don't
6989 understand it. */
47d9a591 6990
b4db1224 6991 if (note->type < NT_NETBSDCORE_FIRSTMACH)
b34976b6 6992 return TRUE;
50b2bdb7
AM		 6993
6994
6995 switch (bfd_get_arch (abfd))
6996 {
6997 /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and
6998 PT_GETFPREGS == mach+2. */
6999
7000 case bfd_arch_alpha:
7001 case bfd_arch_sparc:
7002 switch (note->type)
7003 {
b4db1224 7004 case NT_NETBSDCORE_FIRSTMACH+0:
50b2bdb7
AM		 7005 return elfcore_make_note_pseudosection (abfd, ".reg", note);
7006
b4db1224 7007 case NT_NETBSDCORE_FIRSTMACH+2:
50b2bdb7
AM		 7008 return elfcore_make_note_pseudosection (abfd, ".reg2", note);
7009
7010 default:
b34976b6 7011 return TRUE;
50b2bdb7
AM		 7012 }
7013
7014 /* On all other arch's, PT_GETREGS == mach+1 and
7015 PT_GETFPREGS == mach+3. */
7016
7017 default:
7018 switch (note->type)
7019 {
b4db1224 7020 case NT_NETBSDCORE_FIRSTMACH+1:
50b2bdb7
AM		 7021 return elfcore_make_note_pseudosection (abfd, ".reg", note);
7022
b4db1224 7023 case NT_NETBSDCORE_FIRSTMACH+3:
50b2bdb7
AM		 7024 return elfcore_make_note_pseudosection (abfd, ".reg2", note);
7025
7026 default:
b34976b6 7027 return TRUE;
50b2bdb7
AM		 7028 }
7029 }
7030 /* NOTREACHED */
7031}
7032
07c6e936
NC		 7033static bfd_boolean
7034elfcore_grok_nto_status (abfd, note, tid)
7035 bfd *abfd;
7036 Elf_Internal_Note *note;
7037 pid_t *tid;
7038{
7039 void *ddata = note->descdata;
7040 char buf[100];
7041 char *name;
7042 asection *sect;
f8843e87
AM		 7043 short sig;
7044 unsigned flags;
07c6e936
NC		 7045
7046 /* nto_procfs_status 'pid' field is at offset 0. */
7047 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, (bfd_byte *) ddata);
7048
f8843e87
AM		 7049 /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */
7050 *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4);
7051
7052 /* nto_procfs_status 'flags' field is at offset 8. */
7053 flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8);
07c6e936
NC		 7054
7055 /* nto_procfs_status 'what' field is at offset 14. */
f8843e87
AM		 7056 if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0)
7057 {
7058 elf_tdata (abfd)->core_signal = sig;
7059 elf_tdata (abfd)->core_lwpid = *tid;
7060 }
07c6e936 7061
f8843e87
AM		 7062 /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores
7063 do not come from signals so we make sure we set the current
7064 thread just in case. */
7065 if (flags & 0x00000080)
7066 elf_tdata (abfd)->core_lwpid = *tid;
07c6e936
NC		 7067
7068 /* Make a ".qnx_core_status/%d" section. */
7069 sprintf (buf, ".qnx_core_status/%d", *tid);
7070
7071 name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1);
7072 if (name == NULL)
7073 return FALSE;
7074 strcpy (name, buf);
7075
7076 sect = bfd_make_section (abfd, name);
7077 if (sect == NULL)
7078 return FALSE;
7079
7080 sect->_raw_size = note->descsz;
7081 sect->filepos = note->descpos;
7082 sect->flags = SEC_HAS_CONTENTS;
7083 sect->alignment_power = 2;
7084
7085 return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect));
7086}
7087
7088static bfd_boolean
7089elfcore_grok_nto_gregs (abfd, note, tid)
7090 bfd *abfd;
7091 Elf_Internal_Note *note;
7092 pid_t tid;
7093{
7094 char buf[100];
7095 char *name;
7096 asection *sect;
7097
7098 /* Make a ".reg/%d" section. */
7099 sprintf (buf, ".reg/%d", tid);
7100
7101 name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1);
7102 if (name == NULL)
7103 return FALSE;
7104 strcpy (name, buf);
7105
7106 sect = bfd_make_section (abfd, name);
7107 if (sect == NULL)
7108 return FALSE;
7109
7110 sect->_raw_size = note->descsz;
7111 sect->filepos = note->descpos;
7112 sect->flags = SEC_HAS_CONTENTS;
7113 sect->alignment_power = 2;
7114
f8843e87
AM		 7115 /* This is the current thread. */
7116 if (elf_tdata (abfd)->core_lwpid == tid)
7117 return elfcore_maybe_make_sect (abfd, ".reg", sect);
7118
7119 return TRUE;
07c6e936
NC		 7120}
7121
7122#define BFD_QNT_CORE_INFO 7
7123#define BFD_QNT_CORE_STATUS 8
7124#define BFD_QNT_CORE_GREG 9
7125#define BFD_QNT_CORE_FPREG 10
7126
7127static bfd_boolean
7128elfcore_grok_nto_note (abfd, note)
7129 bfd *abfd;
7130 Elf_Internal_Note *note;
7131{
7132 /* Every GREG section has a STATUS section before it. Store the
811072d8 7133 tid from the previous call to pass down to the next gregs
07c6e936
NC		 7134 function. */
7135 static pid_t tid = 1;
7136
7137 switch (note->type)
7138 {
7139 case BFD_QNT_CORE_INFO: return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note);
7140 case BFD_QNT_CORE_STATUS: return elfcore_grok_nto_status (abfd, note, &tid);
7141 case BFD_QNT_CORE_GREG: return elfcore_grok_nto_gregs (abfd, note, tid);
7142 case BFD_QNT_CORE_FPREG: return elfcore_grok_prfpreg (abfd, note);
7143 default: return TRUE;
7144 }
7145}
7146
7c76fa91
MS		 7147/* Function: elfcore_write_note
7148
47d9a591 7149 Inputs:
7c76fa91
MS		 7150 buffer to hold note
7151 name of note
7152 type of note
7153 data for note
7154 size of data for note
7155
7156 Return:
7157 End of buffer containing note. */
7158
7159char *
7160elfcore_write_note (abfd, buf, bufsiz, name, type, input, size)
7161 bfd *abfd;
7162 char *buf;
7163 int *bufsiz;
d4c88bbb 7164 const char *name;
7c76fa91 7165 int type;
d4c88bbb 7166 const PTR input;
7c76fa91
MS		 7167 int size;
7168{
7169 Elf_External_Note *xnp;
d4c88bbb
AM		 7170 size_t namesz;
7171 size_t pad;
7172 size_t newspace;
7c76fa91
MS		 7173 char *p, *dest;
7174
d4c88bbb
AM		 7175 namesz = 0;
7176 pad = 0;
7177 if (name != NULL)
7178 {
7179 struct elf_backend_data *bed;
7180
7181 namesz = strlen (name) + 1;
7182 bed = get_elf_backend_data (abfd);
45d6a902 7183 pad = -namesz & ((1 << bed->s->log_file_align) - 1);
d4c88bbb
AM		 7184 }
7185
7186 newspace = sizeof (Elf_External_Note) - 1 + namesz + pad + size;
7187
7c76fa91
MS		 7188 p = realloc (buf, *bufsiz + newspace);
7189 dest = p + *bufsiz;
7190 *bufsiz += newspace;
7191 xnp = (Elf_External_Note *) dest;
7192 H_PUT_32 (abfd, namesz, xnp->namesz);
7193 H_PUT_32 (abfd, size, xnp->descsz);
7194 H_PUT_32 (abfd, type, xnp->type);
d4c88bbb
AM		 7195 dest = xnp->name;
7196 if (name != NULL)
7197 {
7198 memcpy (dest, name, namesz);
7199 dest += namesz;
7200 while (pad != 0)
7201 {
7202 *dest++ = '\0';
7203 --pad;
7204 }
7205 }
7206 memcpy (dest, input, size);
7c76fa91
MS		 7207 return p;
7208}
7209
7210#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
7211char *
7212elfcore_write_prpsinfo (abfd, buf, bufsiz, fname, psargs)
7213 bfd *abfd;
7214 char *buf;
7215 int *bufsiz;
47d9a591 7216 const char *fname;
d4c88bbb 7217 const char *psargs;
7c76fa91
MS		 7218{
7219 int note_type;
7220 char *note_name = "CORE";
7221
7222#if defined (HAVE_PSINFO_T)
7223 psinfo_t data;
7224 note_type = NT_PSINFO;
7225#else
7226 prpsinfo_t data;
7227 note_type = NT_PRPSINFO;
7228#endif
7229
7230 memset (&data, 0, sizeof (data));
7231 strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
7232 strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
47d9a591 7233 return elfcore_write_note (abfd, buf, bufsiz,
7c76fa91
MS		 7234 note_name, note_type, &data, sizeof (data));
7235}
7236#endif /* PSINFO_T or PRPSINFO_T */
7237
7238#if defined (HAVE_PRSTATUS_T)
7239char *
7240elfcore_write_prstatus (abfd, buf, bufsiz, pid, cursig, gregs)
7241 bfd *abfd;
7242 char *buf;
7243 int *bufsiz;
b87011e9 7244 long pid;
7c76fa91 7245 int cursig;
d4c88bbb 7246 const PTR gregs;
7c76fa91
MS		 7247{
7248 prstatus_t prstat;
7249 char *note_name = "CORE";
7250
7251 memset (&prstat, 0, sizeof (prstat));
7252 prstat.pr_pid = pid;
7253 prstat.pr_cursig = cursig;
c106e334 7254 memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
47d9a591 7255 return elfcore_write_note (abfd, buf, bufsiz,
7c76fa91
MS		 7256 note_name, NT_PRSTATUS, &prstat, sizeof (prstat));
7257}
7258#endif /* HAVE_PRSTATUS_T */
7259
51316059
MS		 7260#if defined (HAVE_LWPSTATUS_T)
7261char *
7262elfcore_write_lwpstatus (abfd, buf, bufsiz, pid, cursig, gregs)
7263 bfd *abfd;
7264 char *buf;
7265 int *bufsiz;
7266 long pid;
7267 int cursig;
d4c88bbb 7268 const PTR gregs;
51316059
MS		 7269{
7270 lwpstatus_t lwpstat;
7271 char *note_name = "CORE";
7272
7273 memset (&lwpstat, 0, sizeof (lwpstat));
7274 lwpstat.pr_lwpid = pid >> 16;
7275 lwpstat.pr_cursig = cursig;
7276#if defined (HAVE_LWPSTATUS_T_PR_REG)
7277 memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg));
7278#elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT)
7279#if !defined(gregs)
7280 memcpy (lwpstat.pr_context.uc_mcontext.gregs,
7281 gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs));
7282#else
7283 memcpy (lwpstat.pr_context.uc_mcontext.__gregs,
7284 gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs));
7285#endif
7286#endif
47d9a591 7287 return elfcore_write_note (abfd, buf, bufsiz, note_name,
51316059
MS		 7288 NT_LWPSTATUS, &lwpstat, sizeof (lwpstat));
7289}
7290#endif /* HAVE_LWPSTATUS_T */
7291
7c76fa91
MS		 7292#if defined (HAVE_PSTATUS_T)
7293char *
7294elfcore_write_pstatus (abfd, buf, bufsiz, pid, cursig, gregs)
7295 bfd *abfd;
7296 char *buf;
7297 int *bufsiz;
b87011e9 7298 long pid;
7c76fa91 7299 int cursig;
d4c88bbb 7300 const PTR gregs;
7c76fa91
MS		 7301{
7302 pstatus_t pstat;
7303 char *note_name = "CORE";
7304
51316059
MS		 7305 memset (&pstat, 0, sizeof (pstat));
7306 pstat.pr_pid = pid & 0xffff;
47d9a591 7307 buf = elfcore_write_note (abfd, buf, bufsiz, note_name,
51316059
MS		 7308 NT_PSTATUS, &pstat, sizeof (pstat));
7309 return buf;
7c76fa91
MS		 7310}
7311#endif /* HAVE_PSTATUS_T */
7312
7313char *
7314elfcore_write_prfpreg (abfd, buf, bufsiz, fpregs, size)
7315 bfd *abfd;
7316 char *buf;
7317 int *bufsiz;
d4c88bbb 7318 const PTR fpregs;
7c76fa91
MS		 7319 int size;
7320{
7321 char *note_name = "CORE";
47d9a591 7322 return elfcore_write_note (abfd, buf, bufsiz,
7c76fa91
MS		 7323 note_name, NT_FPREGSET, fpregs, size);
7324}
7325
7326char *
7327elfcore_write_prxfpreg (abfd, buf, bufsiz, xfpregs, size)
7328 bfd *abfd;
7329 char *buf;
7330 int *bufsiz;
d4c88bbb 7331 const PTR xfpregs;
7c76fa91
MS		 7332 int size;
7333{
7334 char *note_name = "LINUX";
47d9a591 7335 return elfcore_write_note (abfd, buf, bufsiz,
7c76fa91
MS		 7336 note_name, NT_PRXFPREG, xfpregs, size);
7337}
7338
b34976b6 7339static bfd_boolean
252b5132 7340elfcore_read_notes (abfd, offset, size)
c044fabd 7341 bfd *abfd;
dc810e39
AM		 7342 file_ptr offset;
7343 bfd_size_type size;
252b5132 7344{
c044fabd
KH		 7345 char *buf;
7346 char *p;
252b5132
RH		 7347
7348 if (size <= 0)
b34976b6 7349 return TRUE;
252b5132 7350
dc810e39 7351 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
b34976b6 7352 return FALSE;
252b5132 7353
dc810e39 7354 buf = bfd_malloc (size);
252b5132 7355 if (buf == NULL)
b34976b6 7356 return FALSE;
252b5132 7357
dc810e39 7358 if (bfd_bread (buf, size, abfd) != size)
252b5132
RH		 7359 {
7360 error:
7361 free (buf);
b34976b6 7362 return FALSE;
252b5132
RH		 7363 }
7364
7365 p = buf;
7366 while (p < buf + size)
7367 {
c044fabd
KH		 7368 /* FIXME: bad alignment assumption. */
7369 Elf_External_Note *xnp = (Elf_External_Note *) p;
252b5132
RH		 7370 Elf_Internal_Note in;
7371
dc810e39 7372 in.type = H_GET_32 (abfd, xnp->type);
252b5132 7373
dc810e39 7374 in.namesz = H_GET_32 (abfd, xnp->namesz);
252b5132
RH		 7375 in.namedata = xnp->name;
7376
dc810e39 7377 in.descsz = H_GET_32 (abfd, xnp->descsz);
252b5132
RH		 7378 in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4);
7379 in.descpos = offset + (in.descdata - buf);
7380
50b2bdb7
AM		 7381 if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0)
7382 {
7383 if (! elfcore_grok_netbsd_note (abfd, &in))
7384 goto error;
7385 }
07c6e936
NC		 7386 else if (strncmp (in.namedata, "QNX", 3) == 0)
7387 {
7388 if (! elfcore_grok_nto_note (abfd, &in))
7389 goto error;
7390 }
50b2bdb7
AM		 7391 else
7392 {
7393 if (! elfcore_grok_note (abfd, &in))
7394 goto error;
7395 }
252b5132
RH		 7396
7397 p = in.descdata + BFD_ALIGN (in.descsz, 4);
7398 }
7399
7400 free (buf);
b34976b6 7401 return TRUE;
252b5132 7402}
98d8431c
JB		 7403\f
7404/* Providing external access to the ELF program header table. */
7405
7406/* Return an upper bound on the number of bytes required to store a
7407 copy of ABFD's program header table entries. Return -1 if an error
7408 occurs; bfd_get_error will return an appropriate code. */
c044fabd 7409
98d8431c
JB		 7410long
7411bfd_get_elf_phdr_upper_bound (abfd)
7412 bfd *abfd;
7413{
7414 if (abfd->xvec->flavour != bfd_target_elf_flavour)
7415 {
7416 bfd_set_error (bfd_error_wrong_format);
7417 return -1;
7418 }
7419
936e320b 7420 return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr);
98d8431c
JB		 7421}
7422
98d8431c
JB		 7423/* Copy ABFD's program header table entries to *PHDRS. The entries
7424 will be stored as an array of Elf_Internal_Phdr structures, as
7425 defined in include/elf/internal.h. To find out how large the
7426 buffer needs to be, call bfd_get_elf_phdr_upper_bound.
7427
7428 Return the number of program header table entries read, or -1 if an
7429 error occurs; bfd_get_error will return an appropriate code. */
c044fabd 7430
98d8431c
JB		 7431int
7432bfd_get_elf_phdrs (abfd, phdrs)
7433 bfd *abfd;
7434 void *phdrs;
7435{
7436 int num_phdrs;
7437
7438 if (abfd->xvec->flavour != bfd_target_elf_flavour)
7439 {
7440 bfd_set_error (bfd_error_wrong_format);
7441 return -1;
7442 }
7443
7444 num_phdrs = elf_elfheader (abfd)->e_phnum;
c044fabd 7445 memcpy (phdrs, elf_tdata (abfd)->phdr,
98d8431c
JB		 7446 num_phdrs * sizeof (Elf_Internal_Phdr));
7447
7448 return num_phdrs;
7449}
ae4221d7
L		 7450
7451void
4e771d61 7452_bfd_elf_sprintf_vma (abfd, buf, value)
cc55aec9 7453 bfd *abfd ATTRIBUTE_UNUSED;
ae4221d7
L		 7454 char *buf;
7455 bfd_vma value;
7456{
d3b05f8d 7457#ifdef BFD64
ae4221d7
L		 7458 Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
7459
7460 i_ehdrp = elf_elfheader (abfd);
7461 if (i_ehdrp == NULL)
7462 sprintf_vma (buf, value);
7463 else
7464 {
7465 if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64)
cc55aec9 7466 {
ae4221d7 7467#if BFD_HOST_64BIT_LONG
cc55aec9 7468 sprintf (buf, "%016lx", value);
ae4221d7 7469#else
cc55aec9
AM		 7470 sprintf (buf, "%08lx%08lx", _bfd_int64_high (value),
7471 _bfd_int64_low (value));
ae4221d7 7472#endif
cc55aec9 7473 }
ae4221d7
L		 7474 else
7475 sprintf (buf, "%08lx", (unsigned long) (value & 0xffffffff));
7476 }
d3b05f8d
L		 7477#else
7478 sprintf_vma (buf, value);
7479#endif
ae4221d7
L		 7480}
7481
7482void
4e771d61 7483_bfd_elf_fprintf_vma (abfd, stream, value)
cc55aec9 7484 bfd *abfd ATTRIBUTE_UNUSED;
ae4221d7
L		 7485 PTR stream;
7486 bfd_vma value;
7487{
d3b05f8d 7488#ifdef BFD64
ae4221d7
L		 7489 Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
7490
7491 i_ehdrp = elf_elfheader (abfd);
7492 if (i_ehdrp == NULL)
7493 fprintf_vma ((FILE *) stream, value);
7494 else
7495 {
7496 if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64)
cc55aec9 7497 {
ae4221d7 7498#if BFD_HOST_64BIT_LONG
cc55aec9 7499 fprintf ((FILE *) stream, "%016lx", value);
ae4221d7 7500#else
cc55aec9
AM		 7501 fprintf ((FILE *) stream, "%08lx%08lx",
7502 _bfd_int64_high (value), _bfd_int64_low (value));
ae4221d7 7503#endif
cc55aec9 7504 }
ae4221d7
L		 7505 else
7506 fprintf ((FILE *) stream, "%08lx",
7507 (unsigned long) (value & 0xffffffff));
7508 }
d3b05f8d
L		 7509#else
7510 fprintf_vma ((FILE *) stream, value);
7511#endif
ae4221d7 7512}
db6751f2
JJ		 7513
7514enum elf_reloc_type_class
f51e552e
AM		 7515_bfd_elf_reloc_type_class (rela)
7516 const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED;
db6751f2
JJ		 7517{
7518 return reloc_class_normal;
7519}
f8df10f4 7520
47d9a591 7521/* For RELA architectures, return the relocation value for a
f8df10f4
JJ		 7522 relocation against a local symbol. */
7523
7524bfd_vma
7525_bfd_elf_rela_local_sym (abfd, sym, sec, rel)
7526 bfd *abfd;
7527 Elf_Internal_Sym *sym;
7528 asection *sec;
7529 Elf_Internal_Rela *rel;
7530{
7531 bfd_vma relocation;
7532
7533 relocation = (sec->output_section->vma
7534 + sec->output_offset
7535 + sym->st_value);
7536 if ((sec->flags & SEC_MERGE)
c629eae0 7537 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
68bfbfcc 7538 && sec->sec_info_type == ELF_INFO_TYPE_MERGE)
f8df10f4
JJ		 7539 {
7540 asection *msec;
7541
7542 msec = sec;
7543 rel->r_addend =
7544 _bfd_merged_section_offset (abfd, &msec,
65765700 7545 elf_section_data (sec)->sec_info,
f8df10f4
JJ		 7546 sym->st_value + rel->r_addend,
7547 (bfd_vma) 0)
7548 - relocation;
7549 rel->r_addend += msec->output_section->vma + msec->output_offset;
7550 }
7551 return relocation;
7552}
c629eae0
JJ		 7553
7554bfd_vma
7555_bfd_elf_rel_local_sym (abfd, sym, psec, addend)
7556 bfd *abfd;
7557 Elf_Internal_Sym *sym;
7558 asection **psec;
7559 bfd_vma addend;
47d9a591 7560{
c629eae0
JJ		 7561 asection *sec = *psec;
7562
68bfbfcc 7563 if (sec->sec_info_type != ELF_INFO_TYPE_MERGE)
c629eae0
JJ		 7564 return sym->st_value + addend;
7565
7566 return _bfd_merged_section_offset (abfd, psec,
65765700 7567 elf_section_data (sec)->sec_info,
c629eae0
JJ		 7568 sym->st_value + addend, (bfd_vma) 0);
7569}
7570
7571bfd_vma
7572_bfd_elf_section_offset (abfd, info, sec, offset)
7573 bfd *abfd;
7574 struct bfd_link_info *info;
7575 asection *sec;
7576 bfd_vma offset;
7577{
7578 struct bfd_elf_section_data *sec_data;
7579
7580 sec_data = elf_section_data (sec);
68bfbfcc 7581 switch (sec->sec_info_type)
65765700
JJ		 7582 {
7583 case ELF_INFO_TYPE_STABS:
126495ed
AM		 7584 return _bfd_stab_section_offset (abfd,
7585 &elf_hash_table (info)->merge_info,
7586 sec, &sec_data->sec_info, offset);
65765700
JJ		 7587 case ELF_INFO_TYPE_EH_FRAME:
7588 return _bfd_elf_eh_frame_section_offset (abfd, sec, offset);
7589 default:
7590 return offset;
7591 }
c629eae0 7592}
3333a7c3
RM		 7593\f
7594/* Create a new BFD as if by bfd_openr. Rather than opening a file,
7595 reconstruct an ELF file by reading the segments out of remote memory
7596 based on the ELF file header at EHDR_VMA and the ELF program headers it
7597 points to. If not null, *LOADBASEP is filled in with the difference
7598 between the VMAs from which the segments were read, and the VMAs the
7599 file headers (and hence BFD's idea of each section's VMA) put them at.
7600
7601 The function TARGET_READ_MEMORY is called to copy LEN bytes from the
7602 remote memory at target address VMA into the local buffer at MYADDR; it
7603 should return zero on success or an `errno' code on failure. TEMPL must
7604 be a BFD for an ELF target with the word size and byte order found in
7605 the remote memory. */
7606
7607bfd *
7608bfd_elf_bfd_from_remote_memory (templ, ehdr_vma, loadbasep, target_read_memory)
7609 bfd *templ;
7610 bfd_vma ehdr_vma;
7611 bfd_vma *loadbasep;
7612 int (*target_read_memory) PARAMS ((bfd_vma vma, char *myaddr, int len));
7613{
7614 return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory)
7615 (templ, ehdr_vma, loadbasep, target_read_memory);
7616}
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