Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 AC |
2 | |
3 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, | |
4 | 2002, 2003, 2004 Free Software Foundation, Inc. | |
252b5132 | 5 | |
5e8d7549 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
5e8d7549 NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
252b5132 | 12 | |
5e8d7549 NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
5e8d7549 | 18 | You should have received a copy of the GNU General Public License |
b34976b6 | 19 | along with this program; if not, write to the Free Software |
5e8d7549 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
252b5132 | 21 | |
661a3fd4 | 22 | /* SECTION |
47d9a591 | 23 | |
252b5132 RH |
24 | ELF backends |
25 | ||
26 | BFD support for ELF formats is being worked on. | |
27 | Currently, the best supported back ends are for sparc and i386 | |
28 | (running svr4 or Solaris 2). | |
29 | ||
30 | Documentation of the internals of the support code still needs | |
31 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 32 | haven't bothered yet. */ |
252b5132 | 33 | |
7ee38065 MS |
34 | /* For sparc64-cross-sparc32. */ |
35 | #define _SYSCALL32 | |
252b5132 RH |
36 | #include "bfd.h" |
37 | #include "sysdep.h" | |
38 | #include "bfdlink.h" | |
39 | #include "libbfd.h" | |
40 | #define ARCH_SIZE 0 | |
41 | #include "elf-bfd.h" | |
e0e8c97f | 42 | #include "libiberty.h" |
252b5132 | 43 | |
217aa764 | 44 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 45 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 AM |
46 | static bfd_boolean prep_headers (bfd *); |
47 | static bfd_boolean swap_out_syms (bfd *, struct bfd_strtab_hash **, int) ; | |
48 | static bfd_boolean elfcore_read_notes (bfd *, file_ptr, bfd_size_type) ; | |
50b2bdb7 | 49 | |
252b5132 RH |
50 | /* Swap version information in and out. The version information is |
51 | currently size independent. If that ever changes, this code will | |
52 | need to move into elfcode.h. */ | |
53 | ||
54 | /* Swap in a Verdef structure. */ | |
55 | ||
56 | void | |
217aa764 AM |
57 | _bfd_elf_swap_verdef_in (bfd *abfd, |
58 | const Elf_External_Verdef *src, | |
59 | Elf_Internal_Verdef *dst) | |
252b5132 | 60 | { |
dc810e39 AM |
61 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
62 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
63 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
64 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
65 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
66 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
67 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
68 | } |
69 | ||
70 | /* Swap out a Verdef structure. */ | |
71 | ||
72 | void | |
217aa764 AM |
73 | _bfd_elf_swap_verdef_out (bfd *abfd, |
74 | const Elf_Internal_Verdef *src, | |
75 | Elf_External_Verdef *dst) | |
252b5132 | 76 | { |
dc810e39 AM |
77 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
78 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
79 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
80 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
81 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
82 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
83 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
84 | } |
85 | ||
86 | /* Swap in a Verdaux structure. */ | |
87 | ||
88 | void | |
217aa764 AM |
89 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
90 | const Elf_External_Verdaux *src, | |
91 | Elf_Internal_Verdaux *dst) | |
252b5132 | 92 | { |
dc810e39 AM |
93 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
94 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
95 | } |
96 | ||
97 | /* Swap out a Verdaux structure. */ | |
98 | ||
99 | void | |
217aa764 AM |
100 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
101 | const Elf_Internal_Verdaux *src, | |
102 | Elf_External_Verdaux *dst) | |
252b5132 | 103 | { |
dc810e39 AM |
104 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
105 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
106 | } |
107 | ||
108 | /* Swap in a Verneed structure. */ | |
109 | ||
110 | void | |
217aa764 AM |
111 | _bfd_elf_swap_verneed_in (bfd *abfd, |
112 | const Elf_External_Verneed *src, | |
113 | Elf_Internal_Verneed *dst) | |
252b5132 | 114 | { |
dc810e39 AM |
115 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
116 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
117 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
118 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
119 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
120 | } |
121 | ||
122 | /* Swap out a Verneed structure. */ | |
123 | ||
124 | void | |
217aa764 AM |
125 | _bfd_elf_swap_verneed_out (bfd *abfd, |
126 | const Elf_Internal_Verneed *src, | |
127 | Elf_External_Verneed *dst) | |
252b5132 | 128 | { |
dc810e39 AM |
129 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
130 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
131 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
132 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
133 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
134 | } |
135 | ||
136 | /* Swap in a Vernaux structure. */ | |
137 | ||
138 | void | |
217aa764 AM |
139 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
140 | const Elf_External_Vernaux *src, | |
141 | Elf_Internal_Vernaux *dst) | |
252b5132 | 142 | { |
dc810e39 AM |
143 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
144 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
145 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
146 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
147 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
148 | } |
149 | ||
150 | /* Swap out a Vernaux structure. */ | |
151 | ||
152 | void | |
217aa764 AM |
153 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
154 | const Elf_Internal_Vernaux *src, | |
155 | Elf_External_Vernaux *dst) | |
252b5132 | 156 | { |
dc810e39 AM |
157 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
158 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
159 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
160 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
161 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
162 | } |
163 | ||
164 | /* Swap in a Versym structure. */ | |
165 | ||
166 | void | |
217aa764 AM |
167 | _bfd_elf_swap_versym_in (bfd *abfd, |
168 | const Elf_External_Versym *src, | |
169 | Elf_Internal_Versym *dst) | |
252b5132 | 170 | { |
dc810e39 | 171 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
172 | } |
173 | ||
174 | /* Swap out a Versym structure. */ | |
175 | ||
176 | void | |
217aa764 AM |
177 | _bfd_elf_swap_versym_out (bfd *abfd, |
178 | const Elf_Internal_Versym *src, | |
179 | Elf_External_Versym *dst) | |
252b5132 | 180 | { |
dc810e39 | 181 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
182 | } |
183 | ||
184 | /* Standard ELF hash function. Do not change this function; you will | |
185 | cause invalid hash tables to be generated. */ | |
3a99b017 | 186 | |
252b5132 | 187 | unsigned long |
217aa764 | 188 | bfd_elf_hash (const char *namearg) |
252b5132 | 189 | { |
3a99b017 | 190 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
191 | unsigned long h = 0; |
192 | unsigned long g; | |
193 | int ch; | |
194 | ||
195 | while ((ch = *name++) != '\0') | |
196 | { | |
197 | h = (h << 4) + ch; | |
198 | if ((g = (h & 0xf0000000)) != 0) | |
199 | { | |
200 | h ^= g >> 24; | |
201 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
202 | this case and on some machines one insn instead of two. */ | |
203 | h ^= g; | |
204 | } | |
205 | } | |
32dfa85d | 206 | return h & 0xffffffff; |
252b5132 RH |
207 | } |
208 | ||
209 | /* Read a specified number of bytes at a specified offset in an ELF | |
210 | file, into a newly allocated buffer, and return a pointer to the | |
c044fabd | 211 | buffer. */ |
252b5132 RH |
212 | |
213 | static char * | |
217aa764 | 214 | elf_read (bfd *abfd, file_ptr offset, bfd_size_type size) |
252b5132 RH |
215 | { |
216 | char *buf; | |
217 | ||
218 | if ((buf = bfd_alloc (abfd, size)) == NULL) | |
219 | return NULL; | |
dc810e39 | 220 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) |
252b5132 | 221 | return NULL; |
217aa764 | 222 | if (bfd_bread (buf, size, abfd) != size) |
252b5132 RH |
223 | { |
224 | if (bfd_get_error () != bfd_error_system_call) | |
225 | bfd_set_error (bfd_error_file_truncated); | |
226 | return NULL; | |
227 | } | |
228 | return buf; | |
229 | } | |
230 | ||
b34976b6 | 231 | bfd_boolean |
217aa764 | 232 | bfd_elf_mkobject (bfd *abfd) |
252b5132 | 233 | { |
c044fabd KH |
234 | /* This just does initialization. */ |
235 | /* coff_mkobject zalloc's space for tdata.coff_obj_data ... */ | |
217aa764 | 236 | elf_tdata (abfd) = bfd_zalloc (abfd, sizeof (struct elf_obj_tdata)); |
252b5132 | 237 | if (elf_tdata (abfd) == 0) |
b34976b6 | 238 | return FALSE; |
c044fabd KH |
239 | /* Since everything is done at close time, do we need any |
240 | initialization? */ | |
252b5132 | 241 | |
b34976b6 | 242 | return TRUE; |
252b5132 RH |
243 | } |
244 | ||
b34976b6 | 245 | bfd_boolean |
217aa764 | 246 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 247 | { |
c044fabd | 248 | /* I think this can be done just like an object file. */ |
252b5132 RH |
249 | return bfd_elf_mkobject (abfd); |
250 | } | |
251 | ||
252 | char * | |
217aa764 | 253 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
254 | { |
255 | Elf_Internal_Shdr **i_shdrp; | |
256 | char *shstrtab = NULL; | |
dc810e39 AM |
257 | file_ptr offset; |
258 | bfd_size_type shstrtabsize; | |
252b5132 RH |
259 | |
260 | i_shdrp = elf_elfsections (abfd); | |
261 | if (i_shdrp == 0 || i_shdrp[shindex] == 0) | |
262 | return 0; | |
263 | ||
264 | shstrtab = (char *) i_shdrp[shindex]->contents; | |
265 | if (shstrtab == NULL) | |
266 | { | |
c044fabd | 267 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
268 | offset = i_shdrp[shindex]->sh_offset; |
269 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
270 | shstrtab = elf_read (abfd, offset, shstrtabsize); | |
217aa764 | 271 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 RH |
272 | } |
273 | return shstrtab; | |
274 | } | |
275 | ||
276 | char * | |
217aa764 AM |
277 | bfd_elf_string_from_elf_section (bfd *abfd, |
278 | unsigned int shindex, | |
279 | unsigned int strindex) | |
252b5132 RH |
280 | { |
281 | Elf_Internal_Shdr *hdr; | |
282 | ||
283 | if (strindex == 0) | |
284 | return ""; | |
285 | ||
286 | hdr = elf_elfsections (abfd)[shindex]; | |
287 | ||
288 | if (hdr->contents == NULL | |
289 | && bfd_elf_get_str_section (abfd, shindex) == NULL) | |
290 | return NULL; | |
291 | ||
292 | if (strindex >= hdr->sh_size) | |
293 | { | |
294 | (*_bfd_error_handler) | |
d003868e AM |
295 | (_("%B: invalid string offset %u >= %lu for section `%s'"), |
296 | abfd, strindex, (unsigned long) hdr->sh_size, | |
252b5132 RH |
297 | ((shindex == elf_elfheader(abfd)->e_shstrndx |
298 | && strindex == hdr->sh_name) | |
299 | ? ".shstrtab" | |
300 | : elf_string_from_elf_strtab (abfd, hdr->sh_name))); | |
301 | return ""; | |
302 | } | |
303 | ||
304 | return ((char *) hdr->contents) + strindex; | |
305 | } | |
306 | ||
6cdc0ccc AM |
307 | /* Read and convert symbols to internal format. |
308 | SYMCOUNT specifies the number of symbols to read, starting from | |
309 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
310 | are non-NULL, they are used to store the internal symbols, external | |
311 | symbols, and symbol section index extensions, respectively. */ | |
312 | ||
313 | Elf_Internal_Sym * | |
217aa764 AM |
314 | bfd_elf_get_elf_syms (bfd *ibfd, |
315 | Elf_Internal_Shdr *symtab_hdr, | |
316 | size_t symcount, | |
317 | size_t symoffset, | |
318 | Elf_Internal_Sym *intsym_buf, | |
319 | void *extsym_buf, | |
320 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
321 | { |
322 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 323 | void *alloc_ext; |
df622259 | 324 | const bfd_byte *esym; |
6cdc0ccc AM |
325 | Elf_External_Sym_Shndx *alloc_extshndx; |
326 | Elf_External_Sym_Shndx *shndx; | |
327 | Elf_Internal_Sym *isym; | |
328 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 329 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
330 | size_t extsym_size; |
331 | bfd_size_type amt; | |
332 | file_ptr pos; | |
333 | ||
334 | if (symcount == 0) | |
335 | return intsym_buf; | |
336 | ||
337 | /* Normal syms might have section extension entries. */ | |
338 | shndx_hdr = NULL; | |
339 | if (symtab_hdr == &elf_tdata (ibfd)->symtab_hdr) | |
340 | shndx_hdr = &elf_tdata (ibfd)->symtab_shndx_hdr; | |
341 | ||
342 | /* Read the symbols. */ | |
343 | alloc_ext = NULL; | |
344 | alloc_extshndx = NULL; | |
345 | bed = get_elf_backend_data (ibfd); | |
346 | extsym_size = bed->s->sizeof_sym; | |
347 | amt = symcount * extsym_size; | |
348 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |
349 | if (extsym_buf == NULL) | |
350 | { | |
351 | alloc_ext = bfd_malloc (amt); | |
352 | extsym_buf = alloc_ext; | |
353 | } | |
354 | if (extsym_buf == NULL | |
355 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
356 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
357 | { | |
358 | intsym_buf = NULL; | |
359 | goto out; | |
360 | } | |
361 | ||
362 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
363 | extshndx_buf = NULL; | |
364 | else | |
365 | { | |
366 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |
367 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |
368 | if (extshndx_buf == NULL) | |
369 | { | |
217aa764 | 370 | alloc_extshndx = bfd_malloc (amt); |
6cdc0ccc AM |
371 | extshndx_buf = alloc_extshndx; |
372 | } | |
373 | if (extshndx_buf == NULL | |
374 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
375 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
376 | { | |
377 | intsym_buf = NULL; | |
378 | goto out; | |
379 | } | |
380 | } | |
381 | ||
382 | if (intsym_buf == NULL) | |
383 | { | |
384 | bfd_size_type amt = symcount * sizeof (Elf_Internal_Sym); | |
217aa764 | 385 | intsym_buf = bfd_malloc (amt); |
6cdc0ccc AM |
386 | if (intsym_buf == NULL) |
387 | goto out; | |
388 | } | |
389 | ||
390 | /* Convert the symbols to internal form. */ | |
391 | isymend = intsym_buf + symcount; | |
392 | for (esym = extsym_buf, isym = intsym_buf, shndx = extshndx_buf; | |
393 | isym < isymend; | |
394 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
217aa764 | 395 | (*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym); |
6cdc0ccc AM |
396 | |
397 | out: | |
398 | if (alloc_ext != NULL) | |
399 | free (alloc_ext); | |
400 | if (alloc_extshndx != NULL) | |
401 | free (alloc_extshndx); | |
402 | ||
403 | return intsym_buf; | |
404 | } | |
405 | ||
5cab59f6 AM |
406 | /* Look up a symbol name. */ |
407 | const char * | |
217aa764 | 408 | bfd_elf_local_sym_name (bfd *abfd, Elf_Internal_Sym *isym) |
5cab59f6 AM |
409 | { |
410 | unsigned int iname = isym->st_name; | |
411 | unsigned int shindex = elf_tdata (abfd)->symtab_hdr.sh_link; | |
412 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION) | |
413 | { | |
414 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
415 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
416 | } | |
417 | ||
418 | return bfd_elf_string_from_elf_section (abfd, shindex, iname); | |
419 | } | |
420 | ||
dbb410c3 AM |
421 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
422 | sections. The first element is the flags, the rest are section | |
423 | pointers. */ | |
424 | ||
425 | typedef union elf_internal_group { | |
426 | Elf_Internal_Shdr *shdr; | |
427 | unsigned int flags; | |
428 | } Elf_Internal_Group; | |
429 | ||
b885599b AM |
430 | /* Return the name of the group signature symbol. Why isn't the |
431 | signature just a string? */ | |
432 | ||
433 | static const char * | |
217aa764 | 434 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 435 | { |
9dce4196 | 436 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
437 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
438 | Elf_External_Sym_Shndx eshndx; | |
439 | Elf_Internal_Sym isym; | |
b885599b AM |
440 | |
441 | /* First we need to ensure the symbol table is available. */ | |
442 | if (! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
443 | return NULL; | |
444 | ||
9dce4196 AM |
445 | /* Go read the symbol. */ |
446 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
447 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
448 | &isym, esym, &eshndx) == NULL) | |
b885599b | 449 | return NULL; |
9dce4196 | 450 | |
5cab59f6 | 451 | return bfd_elf_local_sym_name (abfd, &isym); |
b885599b AM |
452 | } |
453 | ||
dbb410c3 AM |
454 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
455 | ||
b34976b6 | 456 | static bfd_boolean |
217aa764 | 457 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
458 | { |
459 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
460 | ||
461 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
462 | is set to -1 if there are no SHT_GROUP sections. */ | |
463 | if (num_group == 0) | |
464 | { | |
465 | unsigned int i, shnum; | |
466 | ||
467 | /* First count the number of groups. If we have a SHT_GROUP | |
468 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 469 | shnum = elf_numsections (abfd); |
dbb410c3 AM |
470 | num_group = 0; |
471 | for (i = 0; i < shnum; i++) | |
472 | { | |
473 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
474 | if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8) | |
475 | num_group += 1; | |
476 | } | |
477 | ||
478 | if (num_group == 0) | |
973ffd63 | 479 | num_group = (unsigned) -1; |
dbb410c3 AM |
480 | elf_tdata (abfd)->num_group = num_group; |
481 | ||
482 | if (num_group > 0) | |
483 | { | |
484 | /* We keep a list of elf section headers for group sections, | |
485 | so we can find them quickly. */ | |
486 | bfd_size_type amt = num_group * sizeof (Elf_Internal_Shdr *); | |
487 | elf_tdata (abfd)->group_sect_ptr = bfd_alloc (abfd, amt); | |
488 | if (elf_tdata (abfd)->group_sect_ptr == NULL) | |
b34976b6 | 489 | return FALSE; |
dbb410c3 AM |
490 | |
491 | num_group = 0; | |
492 | for (i = 0; i < shnum; i++) | |
493 | { | |
494 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
495 | if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8) | |
496 | { | |
973ffd63 | 497 | unsigned char *src; |
dbb410c3 AM |
498 | Elf_Internal_Group *dest; |
499 | ||
500 | /* Add to list of sections. */ | |
501 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
502 | num_group += 1; | |
503 | ||
504 | /* Read the raw contents. */ | |
505 | BFD_ASSERT (sizeof (*dest) >= 4); | |
506 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
507 | shdr->contents = bfd_alloc (abfd, amt); | |
508 | if (shdr->contents == NULL | |
509 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
510 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) | |
511 | != shdr->sh_size)) | |
b34976b6 | 512 | return FALSE; |
dbb410c3 AM |
513 | |
514 | /* Translate raw contents, a flag word followed by an | |
515 | array of elf section indices all in target byte order, | |
516 | to the flag word followed by an array of elf section | |
517 | pointers. */ | |
518 | src = shdr->contents + shdr->sh_size; | |
519 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
520 | while (1) | |
521 | { | |
522 | unsigned int idx; | |
523 | ||
524 | src -= 4; | |
525 | --dest; | |
526 | idx = H_GET_32 (abfd, src); | |
527 | if (src == shdr->contents) | |
528 | { | |
529 | dest->flags = idx; | |
b885599b AM |
530 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
531 | shdr->bfd_section->flags | |
532 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
533 | break; |
534 | } | |
535 | if (idx >= shnum) | |
536 | { | |
537 | ((*_bfd_error_handler) | |
d003868e | 538 | (_("%B: invalid SHT_GROUP entry"), abfd)); |
dbb410c3 AM |
539 | idx = 0; |
540 | } | |
541 | dest->shdr = elf_elfsections (abfd)[idx]; | |
542 | } | |
543 | } | |
544 | } | |
545 | } | |
546 | } | |
547 | ||
548 | if (num_group != (unsigned) -1) | |
549 | { | |
550 | unsigned int i; | |
551 | ||
552 | for (i = 0; i < num_group; i++) | |
553 | { | |
554 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
555 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
556 | unsigned int n_elt = shdr->sh_size / 4; | |
557 | ||
558 | /* Look through this group's sections to see if current | |
559 | section is a member. */ | |
560 | while (--n_elt != 0) | |
561 | if ((++idx)->shdr == hdr) | |
562 | { | |
e0e8c97f | 563 | asection *s = NULL; |
dbb410c3 AM |
564 | |
565 | /* We are a member of this group. Go looking through | |
566 | other members to see if any others are linked via | |
567 | next_in_group. */ | |
568 | idx = (Elf_Internal_Group *) shdr->contents; | |
569 | n_elt = shdr->sh_size / 4; | |
570 | while (--n_elt != 0) | |
571 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 572 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
573 | break; |
574 | if (n_elt != 0) | |
575 | { | |
dbb410c3 AM |
576 | /* Snarf the group name from other member, and |
577 | insert current section in circular list. */ | |
945906ff AM |
578 | elf_group_name (newsect) = elf_group_name (s); |
579 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
580 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
581 | } |
582 | else | |
583 | { | |
dbb410c3 AM |
584 | const char *gname; |
585 | ||
b885599b AM |
586 | gname = group_signature (abfd, shdr); |
587 | if (gname == NULL) | |
b34976b6 | 588 | return FALSE; |
945906ff | 589 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
590 | |
591 | /* Start a circular list with one element. */ | |
945906ff | 592 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 593 | } |
b885599b | 594 | |
9dce4196 AM |
595 | /* If the group section has been created, point to the |
596 | new member. */ | |
dbb410c3 | 597 | if (shdr->bfd_section != NULL) |
945906ff | 598 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 599 | |
dbb410c3 AM |
600 | i = num_group - 1; |
601 | break; | |
602 | } | |
603 | } | |
604 | } | |
605 | ||
945906ff | 606 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 607 | { |
d003868e AM |
608 | (*_bfd_error_handler) (_("%B: no group info for section %A"), |
609 | abfd, newsect); | |
dbb410c3 | 610 | } |
b34976b6 | 611 | return TRUE; |
dbb410c3 AM |
612 | } |
613 | ||
3d7f7666 L |
614 | bfd_boolean |
615 | _bfd_elf_setup_group_pointers (bfd *abfd) | |
616 | { | |
617 | unsigned int i; | |
618 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
619 | bfd_boolean result = TRUE; | |
620 | ||
621 | if (num_group == (unsigned) -1) | |
622 | return result; | |
623 | ||
624 | for (i = 0; i < num_group; i++) | |
625 | { | |
626 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
627 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
628 | unsigned int n_elt = shdr->sh_size / 4; | |
629 | ||
630 | while (--n_elt != 0) | |
631 | if ((++idx)->shdr->bfd_section) | |
632 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
633 | else if (idx->shdr->sh_type == SHT_RELA | |
634 | || idx->shdr->sh_type == SHT_REL) | |
635 | /* We won't include relocation sections in section groups in | |
636 | output object files. We adjust the group section size here | |
637 | so that relocatable link will work correctly when | |
638 | relocation sections are in section group in input object | |
639 | files. */ | |
640 | shdr->bfd_section->size -= 4; | |
641 | else | |
642 | { | |
643 | /* There are some unknown sections in the group. */ | |
644 | (*_bfd_error_handler) | |
d003868e AM |
645 | (_("%B: unknown [%d] section `%s' in group [%s]"), |
646 | abfd, | |
3d7f7666 L |
647 | (unsigned int) idx->shdr->sh_type, |
648 | elf_string_from_elf_strtab (abfd, idx->shdr->sh_name), | |
649 | shdr->bfd_section->name); | |
650 | result = FALSE; | |
651 | } | |
652 | } | |
653 | return result; | |
654 | } | |
655 | ||
72adc230 AM |
656 | bfd_boolean |
657 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
658 | { | |
659 | return elf_next_in_group (sec) != NULL; | |
660 | } | |
661 | ||
b34976b6 | 662 | bfd_boolean |
3d7f7666 L |
663 | bfd_elf_discard_group (bfd *abfd ATTRIBUTE_UNUSED, |
664 | asection *group ATTRIBUTE_UNUSED) | |
b885599b | 665 | { |
3d7f7666 | 666 | #if 0 |
b885599b AM |
667 | asection *first = elf_next_in_group (group); |
668 | asection *s = first; | |
669 | ||
670 | while (s != NULL) | |
671 | { | |
672 | s->output_section = bfd_abs_section_ptr; | |
673 | s = elf_next_in_group (s); | |
674 | /* These lists are circular. */ | |
675 | if (s == first) | |
676 | break; | |
677 | } | |
3d7f7666 L |
678 | #else |
679 | /* FIXME: Never used. Remove it! */ | |
680 | abort (); | |
681 | #endif | |
b34976b6 | 682 | return TRUE; |
b885599b AM |
683 | } |
684 | ||
252b5132 RH |
685 | /* Make a BFD section from an ELF section. We store a pointer to the |
686 | BFD section in the bfd_section field of the header. */ | |
687 | ||
b34976b6 | 688 | bfd_boolean |
217aa764 AM |
689 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
690 | Elf_Internal_Shdr *hdr, | |
691 | const char *name) | |
252b5132 RH |
692 | { |
693 | asection *newsect; | |
694 | flagword flags; | |
9c5bfbb7 | 695 | const struct elf_backend_data *bed; |
252b5132 RH |
696 | |
697 | if (hdr->bfd_section != NULL) | |
698 | { | |
699 | BFD_ASSERT (strcmp (name, | |
700 | bfd_get_section_name (abfd, hdr->bfd_section)) == 0); | |
b34976b6 | 701 | return TRUE; |
252b5132 RH |
702 | } |
703 | ||
704 | newsect = bfd_make_section_anyway (abfd, name); | |
705 | if (newsect == NULL) | |
b34976b6 | 706 | return FALSE; |
252b5132 | 707 | |
1829f4b2 AM |
708 | hdr->bfd_section = newsect; |
709 | elf_section_data (newsect)->this_hdr = *hdr; | |
710 | ||
2f89ff8d L |
711 | /* Always use the real type/flags. */ |
712 | elf_section_type (newsect) = hdr->sh_type; | |
713 | elf_section_flags (newsect) = hdr->sh_flags; | |
714 | ||
252b5132 RH |
715 | newsect->filepos = hdr->sh_offset; |
716 | ||
717 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
718 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
719 | || ! bfd_set_section_alignment (abfd, newsect, | |
dc810e39 | 720 | bfd_log2 ((bfd_vma) hdr->sh_addralign))) |
b34976b6 | 721 | return FALSE; |
252b5132 RH |
722 | |
723 | flags = SEC_NO_FLAGS; | |
724 | if (hdr->sh_type != SHT_NOBITS) | |
725 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 726 | if (hdr->sh_type == SHT_GROUP) |
b3096250 | 727 | flags |= SEC_GROUP | SEC_EXCLUDE; |
252b5132 RH |
728 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
729 | { | |
730 | flags |= SEC_ALLOC; | |
731 | if (hdr->sh_type != SHT_NOBITS) | |
732 | flags |= SEC_LOAD; | |
733 | } | |
734 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
735 | flags |= SEC_READONLY; | |
736 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
737 | flags |= SEC_CODE; | |
738 | else if ((flags & SEC_LOAD) != 0) | |
739 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
740 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
741 | { | |
742 | flags |= SEC_MERGE; | |
743 | newsect->entsize = hdr->sh_entsize; | |
744 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
745 | flags |= SEC_STRINGS; | |
746 | } | |
dbb410c3 AM |
747 | if (hdr->sh_flags & SHF_GROUP) |
748 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 749 | return FALSE; |
13ae64f3 JJ |
750 | if ((hdr->sh_flags & SHF_TLS) != 0) |
751 | flags |= SEC_THREAD_LOCAL; | |
252b5132 RH |
752 | |
753 | /* The debugging sections appear to be recognized only by name, not | |
754 | any sort of flag. */ | |
7a6cc5fb | 755 | { |
dbf48117 | 756 | static const char *debug_sec_names [] = |
7a6cc5fb NC |
757 | { |
758 | ".debug", | |
759 | ".gnu.linkonce.wi.", | |
760 | ".line", | |
761 | ".stab" | |
762 | }; | |
763 | int i; | |
764 | ||
e0e8c97f | 765 | for (i = ARRAY_SIZE (debug_sec_names); i--;) |
7a6cc5fb NC |
766 | if (strncmp (name, debug_sec_names[i], strlen (debug_sec_names[i])) == 0) |
767 | break; | |
768 | ||
769 | if (i >= 0) | |
770 | flags |= SEC_DEBUGGING; | |
771 | } | |
252b5132 RH |
772 | |
773 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
774 | only link a single copy of the section. This is used to support | |
775 | g++. g++ will emit each template expansion in its own section. | |
776 | The symbols will be defined as weak, so that multiple definitions | |
777 | are permitted. The GNU linker extension is to actually discard | |
778 | all but one of the sections. */ | |
b885599b AM |
779 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0 |
780 | && elf_next_in_group (newsect) == NULL) | |
252b5132 RH |
781 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
782 | ||
fa152c49 JW |
783 | bed = get_elf_backend_data (abfd); |
784 | if (bed->elf_backend_section_flags) | |
785 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 786 | return FALSE; |
fa152c49 | 787 | |
252b5132 | 788 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 789 | return FALSE; |
252b5132 RH |
790 | |
791 | if ((flags & SEC_ALLOC) != 0) | |
792 | { | |
793 | Elf_Internal_Phdr *phdr; | |
794 | unsigned int i; | |
795 | ||
796 | /* Look through the phdrs to see if we need to adjust the lma. | |
797 | If all the p_paddr fields are zero, we ignore them, since | |
798 | some ELF linkers produce such output. */ | |
799 | phdr = elf_tdata (abfd)->phdr; | |
800 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
801 | { | |
802 | if (phdr->p_paddr != 0) | |
803 | break; | |
804 | } | |
805 | if (i < elf_elfheader (abfd)->e_phnum) | |
806 | { | |
807 | phdr = elf_tdata (abfd)->phdr; | |
808 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
809 | { | |
e0e8c97f NC |
810 | /* This section is part of this segment if its file |
811 | offset plus size lies within the segment's memory | |
812 | span and, if the section is loaded, the extent of the | |
47d9a591 | 813 | loaded data lies within the extent of the segment. |
bf36db18 NC |
814 | |
815 | Note - we used to check the p_paddr field as well, and | |
816 | refuse to set the LMA if it was 0. This is wrong | |
dba143ef | 817 | though, as a perfectly valid initialised segment can |
bf36db18 | 818 | have a p_paddr of zero. Some architectures, eg ARM, |
dba143ef | 819 | place special significance on the address 0 and |
bf36db18 NC |
820 | executables need to be able to have a segment which |
821 | covers this address. */ | |
252b5132 | 822 | if (phdr->p_type == PT_LOAD |
e0e8c97f NC |
823 | && (bfd_vma) hdr->sh_offset >= phdr->p_offset |
824 | && (hdr->sh_offset + hdr->sh_size | |
825 | <= phdr->p_offset + phdr->p_memsz) | |
252b5132 | 826 | && ((flags & SEC_LOAD) == 0 |
d7866f04 AM |
827 | || (hdr->sh_offset + hdr->sh_size |
828 | <= phdr->p_offset + phdr->p_filesz))) | |
252b5132 | 829 | { |
dba143ef | 830 | if ((flags & SEC_LOAD) == 0) |
d7866f04 AM |
831 | newsect->lma = (phdr->p_paddr |
832 | + hdr->sh_addr - phdr->p_vaddr); | |
dba143ef AM |
833 | else |
834 | /* We used to use the same adjustment for SEC_LOAD | |
835 | sections, but that doesn't work if the segment | |
836 | is packed with code from multiple VMAs. | |
837 | Instead we calculate the section LMA based on | |
838 | the segment LMA. It is assumed that the | |
839 | segment will contain sections with contiguous | |
840 | LMAs, even if the VMAs are not. */ | |
841 | newsect->lma = (phdr->p_paddr | |
842 | + hdr->sh_offset - phdr->p_offset); | |
d7866f04 AM |
843 | |
844 | /* With contiguous segments, we can't tell from file | |
845 | offsets whether a section with zero size should | |
846 | be placed at the end of one segment or the | |
847 | beginning of the next. Decide based on vaddr. */ | |
848 | if (hdr->sh_addr >= phdr->p_vaddr | |
849 | && (hdr->sh_addr + hdr->sh_size | |
850 | <= phdr->p_vaddr + phdr->p_memsz)) | |
851 | break; | |
252b5132 RH |
852 | } |
853 | } | |
854 | } | |
855 | } | |
856 | ||
b34976b6 | 857 | return TRUE; |
252b5132 RH |
858 | } |
859 | ||
860 | /* | |
861 | INTERNAL_FUNCTION | |
862 | bfd_elf_find_section | |
863 | ||
864 | SYNOPSIS | |
865 | struct elf_internal_shdr *bfd_elf_find_section (bfd *abfd, char *name); | |
866 | ||
867 | DESCRIPTION | |
868 | Helper functions for GDB to locate the string tables. | |
869 | Since BFD hides string tables from callers, GDB needs to use an | |
870 | internal hook to find them. Sun's .stabstr, in particular, | |
871 | isn't even pointed to by the .stab section, so ordinary | |
872 | mechanisms wouldn't work to find it, even if we had some. | |
873 | */ | |
874 | ||
875 | struct elf_internal_shdr * | |
217aa764 | 876 | bfd_elf_find_section (bfd *abfd, char *name) |
252b5132 RH |
877 | { |
878 | Elf_Internal_Shdr **i_shdrp; | |
879 | char *shstrtab; | |
880 | unsigned int max; | |
881 | unsigned int i; | |
882 | ||
883 | i_shdrp = elf_elfsections (abfd); | |
884 | if (i_shdrp != NULL) | |
885 | { | |
9ad5cbcf AM |
886 | shstrtab = bfd_elf_get_str_section (abfd, |
887 | elf_elfheader (abfd)->e_shstrndx); | |
252b5132 RH |
888 | if (shstrtab != NULL) |
889 | { | |
9ad5cbcf | 890 | max = elf_numsections (abfd); |
252b5132 RH |
891 | for (i = 1; i < max; i++) |
892 | if (!strcmp (&shstrtab[i_shdrp[i]->sh_name], name)) | |
893 | return i_shdrp[i]; | |
894 | } | |
895 | } | |
896 | return 0; | |
897 | } | |
898 | ||
899 | const char *const bfd_elf_section_type_names[] = { | |
900 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
901 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
902 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
903 | }; | |
904 | ||
1049f94e | 905 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
906 | output, and the reloc is against an external symbol, and nothing |
907 | has given us any additional addend, the resulting reloc will also | |
908 | be against the same symbol. In such a case, we don't want to | |
909 | change anything about the way the reloc is handled, since it will | |
910 | all be done at final link time. Rather than put special case code | |
911 | into bfd_perform_relocation, all the reloc types use this howto | |
912 | function. It just short circuits the reloc if producing | |
1049f94e | 913 | relocatable output against an external symbol. */ |
252b5132 | 914 | |
252b5132 | 915 | bfd_reloc_status_type |
217aa764 AM |
916 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
917 | arelent *reloc_entry, | |
918 | asymbol *symbol, | |
919 | void *data ATTRIBUTE_UNUSED, | |
920 | asection *input_section, | |
921 | bfd *output_bfd, | |
922 | char **error_message ATTRIBUTE_UNUSED) | |
923 | { | |
924 | if (output_bfd != NULL | |
252b5132 RH |
925 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
926 | && (! reloc_entry->howto->partial_inplace | |
927 | || reloc_entry->addend == 0)) | |
928 | { | |
929 | reloc_entry->address += input_section->output_offset; | |
930 | return bfd_reloc_ok; | |
931 | } | |
932 | ||
933 | return bfd_reloc_continue; | |
934 | } | |
935 | \f | |
d3c456e9 JJ |
936 | /* Make sure sec_info_type is cleared if sec_info is cleared too. */ |
937 | ||
938 | static void | |
217aa764 AM |
939 | merge_sections_remove_hook (bfd *abfd ATTRIBUTE_UNUSED, |
940 | asection *sec) | |
d3c456e9 | 941 | { |
68bfbfcc AM |
942 | BFD_ASSERT (sec->sec_info_type == ELF_INFO_TYPE_MERGE); |
943 | sec->sec_info_type = ELF_INFO_TYPE_NONE; | |
d3c456e9 JJ |
944 | } |
945 | ||
8550eb6e JJ |
946 | /* Finish SHF_MERGE section merging. */ |
947 | ||
b34976b6 | 948 | bfd_boolean |
217aa764 | 949 | _bfd_elf_merge_sections (bfd *abfd, struct bfd_link_info *info) |
8550eb6e | 950 | { |
57ceae94 AM |
951 | bfd *ibfd; |
952 | asection *sec; | |
953 | ||
0eddce27 | 954 | if (!is_elf_hash_table (info->hash)) |
b34976b6 | 955 | return FALSE; |
57ceae94 AM |
956 | |
957 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
958 | if ((ibfd->flags & DYNAMIC) == 0) | |
959 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
960 | if ((sec->flags & SEC_MERGE) != 0 | |
961 | && !bfd_is_abs_section (sec->output_section)) | |
962 | { | |
963 | struct bfd_elf_section_data *secdata; | |
964 | ||
965 | secdata = elf_section_data (sec); | |
966 | if (! _bfd_add_merge_section (abfd, | |
967 | &elf_hash_table (info)->merge_info, | |
968 | sec, &secdata->sec_info)) | |
969 | return FALSE; | |
970 | else if (secdata->sec_info) | |
971 | sec->sec_info_type = ELF_INFO_TYPE_MERGE; | |
972 | } | |
973 | ||
974 | if (elf_hash_table (info)->merge_info != NULL) | |
975 | _bfd_merge_sections (abfd, info, elf_hash_table (info)->merge_info, | |
d3c456e9 | 976 | merge_sections_remove_hook); |
b34976b6 | 977 | return TRUE; |
8550eb6e | 978 | } |
2d653fc7 AM |
979 | |
980 | void | |
217aa764 | 981 | _bfd_elf_link_just_syms (asection *sec, struct bfd_link_info *info) |
2d653fc7 AM |
982 | { |
983 | sec->output_section = bfd_abs_section_ptr; | |
984 | sec->output_offset = sec->vma; | |
0eddce27 | 985 | if (!is_elf_hash_table (info->hash)) |
2d653fc7 AM |
986 | return; |
987 | ||
68bfbfcc | 988 | sec->sec_info_type = ELF_INFO_TYPE_JUST_SYMS; |
2d653fc7 | 989 | } |
8550eb6e | 990 | \f |
0ac4564e L |
991 | /* Copy the program header and other data from one object module to |
992 | another. */ | |
252b5132 | 993 | |
b34976b6 | 994 | bfd_boolean |
217aa764 | 995 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 L |
996 | { |
997 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
998 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 999 | return TRUE; |
2d502050 L |
1000 | |
1001 | BFD_ASSERT (!elf_flags_init (obfd) | |
1002 | || (elf_elfheader (obfd)->e_flags | |
1003 | == elf_elfheader (ibfd)->e_flags)); | |
1004 | ||
0ac4564e | 1005 | elf_gp (obfd) = elf_gp (ibfd); |
2d502050 | 1006 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
b34976b6 AM |
1007 | elf_flags_init (obfd) = TRUE; |
1008 | return TRUE; | |
2d502050 L |
1009 | } |
1010 | ||
f0b79d91 L |
1011 | /* Print out the program headers. */ |
1012 | ||
b34976b6 | 1013 | bfd_boolean |
217aa764 | 1014 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1015 | { |
217aa764 | 1016 | FILE *f = farg; |
252b5132 RH |
1017 | Elf_Internal_Phdr *p; |
1018 | asection *s; | |
1019 | bfd_byte *dynbuf = NULL; | |
1020 | ||
1021 | p = elf_tdata (abfd)->phdr; | |
1022 | if (p != NULL) | |
1023 | { | |
1024 | unsigned int i, c; | |
1025 | ||
1026 | fprintf (f, _("\nProgram Header:\n")); | |
1027 | c = elf_elfheader (abfd)->e_phnum; | |
1028 | for (i = 0; i < c; i++, p++) | |
1029 | { | |
dc810e39 | 1030 | const char *pt; |
252b5132 RH |
1031 | char buf[20]; |
1032 | ||
1033 | switch (p->p_type) | |
1034 | { | |
dc810e39 AM |
1035 | case PT_NULL: pt = "NULL"; break; |
1036 | case PT_LOAD: pt = "LOAD"; break; | |
1037 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1038 | case PT_INTERP: pt = "INTERP"; break; | |
1039 | case PT_NOTE: pt = "NOTE"; break; | |
1040 | case PT_SHLIB: pt = "SHLIB"; break; | |
1041 | case PT_PHDR: pt = "PHDR"; break; | |
13ae64f3 | 1042 | case PT_TLS: pt = "TLS"; break; |
65765700 | 1043 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; |
9ee5e499 | 1044 | case PT_GNU_STACK: pt = "STACK"; break; |
8c37241b | 1045 | case PT_GNU_RELRO: pt = "RELRO"; break; |
dc810e39 | 1046 | default: sprintf (buf, "0x%lx", p->p_type); pt = buf; break; |
252b5132 | 1047 | } |
dc810e39 | 1048 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1049 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1050 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1051 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1052 | fprintf (f, " paddr 0x"); |
60b89a18 | 1053 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1054 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1055 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1056 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1057 | fprintf (f, " memsz 0x"); |
60b89a18 | 1058 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1059 | fprintf (f, " flags %c%c%c", |
1060 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1061 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1062 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1063 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1064 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1065 | fprintf (f, "\n"); |
1066 | } | |
1067 | } | |
1068 | ||
1069 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1070 | if (s != NULL) | |
1071 | { | |
1072 | int elfsec; | |
dc810e39 | 1073 | unsigned long shlink; |
252b5132 RH |
1074 | bfd_byte *extdyn, *extdynend; |
1075 | size_t extdynsize; | |
217aa764 | 1076 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1077 | |
1078 | fprintf (f, _("\nDynamic Section:\n")); | |
1079 | ||
eea6121a | 1080 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1081 | goto error_return; |
1082 | ||
1083 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
1084 | if (elfsec == -1) | |
1085 | goto error_return; | |
dc810e39 | 1086 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1087 | |
1088 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1089 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1090 | ||
1091 | extdyn = dynbuf; | |
eea6121a | 1092 | extdynend = extdyn + s->size; |
252b5132 RH |
1093 | for (; extdyn < extdynend; extdyn += extdynsize) |
1094 | { | |
1095 | Elf_Internal_Dyn dyn; | |
1096 | const char *name; | |
1097 | char ab[20]; | |
b34976b6 | 1098 | bfd_boolean stringp; |
252b5132 | 1099 | |
217aa764 | 1100 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1101 | |
1102 | if (dyn.d_tag == DT_NULL) | |
1103 | break; | |
1104 | ||
b34976b6 | 1105 | stringp = FALSE; |
252b5132 RH |
1106 | switch (dyn.d_tag) |
1107 | { | |
1108 | default: | |
1109 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
1110 | name = ab; | |
1111 | break; | |
1112 | ||
b34976b6 | 1113 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1114 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1115 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1116 | case DT_HASH: name = "HASH"; break; | |
1117 | case DT_STRTAB: name = "STRTAB"; break; | |
1118 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1119 | case DT_RELA: name = "RELA"; break; | |
1120 | case DT_RELASZ: name = "RELASZ"; break; | |
1121 | case DT_RELAENT: name = "RELAENT"; break; | |
1122 | case DT_STRSZ: name = "STRSZ"; break; | |
1123 | case DT_SYMENT: name = "SYMENT"; break; | |
1124 | case DT_INIT: name = "INIT"; break; | |
1125 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1126 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1127 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1128 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1129 | case DT_REL: name = "REL"; break; | |
1130 | case DT_RELSZ: name = "RELSZ"; break; | |
1131 | case DT_RELENT: name = "RELENT"; break; | |
1132 | case DT_PLTREL: name = "PLTREL"; break; | |
1133 | case DT_DEBUG: name = "DEBUG"; break; | |
1134 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1135 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1136 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1137 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1138 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1139 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1140 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1141 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1142 | case DT_FLAGS: name = "FLAGS"; break; |
1143 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1144 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1145 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1146 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1147 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1148 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1149 | case DT_FEATURE: name = "FEATURE"; break; | |
1150 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1151 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1152 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1153 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1154 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1155 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1156 | case DT_PLTPAD: name = "PLTPAD"; break; |
1157 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1158 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1159 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1160 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1161 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1162 | case DT_VERSYM: name = "VERSYM"; break; |
1163 | case DT_VERDEF: name = "VERDEF"; break; | |
1164 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1165 | case DT_VERNEED: name = "VERNEED"; break; | |
1166 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1167 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1168 | case DT_USED: name = "USED"; break; |
b34976b6 | 1169 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
252b5132 RH |
1170 | } |
1171 | ||
1172 | fprintf (f, " %-11s ", name); | |
1173 | if (! stringp) | |
1174 | fprintf (f, "0x%lx", (unsigned long) dyn.d_un.d_val); | |
1175 | else | |
1176 | { | |
1177 | const char *string; | |
dc810e39 | 1178 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1179 | |
dc810e39 | 1180 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1181 | if (string == NULL) |
1182 | goto error_return; | |
1183 | fprintf (f, "%s", string); | |
1184 | } | |
1185 | fprintf (f, "\n"); | |
1186 | } | |
1187 | ||
1188 | free (dynbuf); | |
1189 | dynbuf = NULL; | |
1190 | } | |
1191 | ||
1192 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1193 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1194 | { | |
fc0e6df6 | 1195 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1196 | return FALSE; |
252b5132 RH |
1197 | } |
1198 | ||
1199 | if (elf_dynverdef (abfd) != 0) | |
1200 | { | |
1201 | Elf_Internal_Verdef *t; | |
1202 | ||
1203 | fprintf (f, _("\nVersion definitions:\n")); | |
1204 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1205 | { | |
1206 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
1207 | t->vd_flags, t->vd_hash, t->vd_nodename); | |
1208 | if (t->vd_auxptr->vda_nextptr != NULL) | |
1209 | { | |
1210 | Elf_Internal_Verdaux *a; | |
1211 | ||
1212 | fprintf (f, "\t"); | |
1213 | for (a = t->vd_auxptr->vda_nextptr; | |
1214 | a != NULL; | |
1215 | a = a->vda_nextptr) | |
1216 | fprintf (f, "%s ", a->vda_nodename); | |
1217 | fprintf (f, "\n"); | |
1218 | } | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | if (elf_dynverref (abfd) != 0) | |
1223 | { | |
1224 | Elf_Internal_Verneed *t; | |
1225 | ||
1226 | fprintf (f, _("\nVersion References:\n")); | |
1227 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1228 | { | |
1229 | Elf_Internal_Vernaux *a; | |
1230 | ||
1231 | fprintf (f, _(" required from %s:\n"), t->vn_filename); | |
1232 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1233 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
1234 | a->vna_flags, a->vna_other, a->vna_nodename); | |
1235 | } | |
1236 | } | |
1237 | ||
b34976b6 | 1238 | return TRUE; |
252b5132 RH |
1239 | |
1240 | error_return: | |
1241 | if (dynbuf != NULL) | |
1242 | free (dynbuf); | |
b34976b6 | 1243 | return FALSE; |
252b5132 RH |
1244 | } |
1245 | ||
1246 | /* Display ELF-specific fields of a symbol. */ | |
1247 | ||
1248 | void | |
217aa764 AM |
1249 | bfd_elf_print_symbol (bfd *abfd, |
1250 | void *filep, | |
1251 | asymbol *symbol, | |
1252 | bfd_print_symbol_type how) | |
252b5132 | 1253 | { |
217aa764 | 1254 | FILE *file = filep; |
252b5132 RH |
1255 | switch (how) |
1256 | { | |
1257 | case bfd_print_symbol_name: | |
1258 | fprintf (file, "%s", symbol->name); | |
1259 | break; | |
1260 | case bfd_print_symbol_more: | |
1261 | fprintf (file, "elf "); | |
60b89a18 | 1262 | bfd_fprintf_vma (abfd, file, symbol->value); |
252b5132 RH |
1263 | fprintf (file, " %lx", (long) symbol->flags); |
1264 | break; | |
1265 | case bfd_print_symbol_all: | |
1266 | { | |
4e8a9624 AM |
1267 | const char *section_name; |
1268 | const char *name = NULL; | |
9c5bfbb7 | 1269 | const struct elf_backend_data *bed; |
7a13edea | 1270 | unsigned char st_other; |
dbb410c3 | 1271 | bfd_vma val; |
c044fabd | 1272 | |
252b5132 | 1273 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1274 | |
1275 | bed = get_elf_backend_data (abfd); | |
1276 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1277 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1278 | |
1279 | if (name == NULL) | |
1280 | { | |
7ee38065 | 1281 | name = symbol->name; |
217aa764 | 1282 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1283 | } |
1284 | ||
252b5132 RH |
1285 | fprintf (file, " %s\t", section_name); |
1286 | /* Print the "other" value for a symbol. For common symbols, | |
1287 | we've already printed the size; now print the alignment. | |
1288 | For other symbols, we have no specified alignment, and | |
1289 | we've printed the address; now print the size. */ | |
dbb410c3 AM |
1290 | if (bfd_is_com_section (symbol->section)) |
1291 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; | |
1292 | else | |
1293 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1294 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1295 | |
1296 | /* If we have version information, print it. */ | |
1297 | if (elf_tdata (abfd)->dynversym_section != 0 | |
1298 | && (elf_tdata (abfd)->dynverdef_section != 0 | |
1299 | || elf_tdata (abfd)->dynverref_section != 0)) | |
1300 | { | |
1301 | unsigned int vernum; | |
1302 | const char *version_string; | |
1303 | ||
1304 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION; | |
1305 | ||
1306 | if (vernum == 0) | |
1307 | version_string = ""; | |
1308 | else if (vernum == 1) | |
1309 | version_string = "Base"; | |
1310 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1311 | version_string = | |
1312 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1313 | else | |
1314 | { | |
1315 | Elf_Internal_Verneed *t; | |
1316 | ||
1317 | version_string = ""; | |
1318 | for (t = elf_tdata (abfd)->verref; | |
1319 | t != NULL; | |
1320 | t = t->vn_nextref) | |
1321 | { | |
1322 | Elf_Internal_Vernaux *a; | |
1323 | ||
1324 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1325 | { | |
1326 | if (a->vna_other == vernum) | |
1327 | { | |
1328 | version_string = a->vna_nodename; | |
1329 | break; | |
1330 | } | |
1331 | } | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0) | |
1336 | fprintf (file, " %-11s", version_string); | |
1337 | else | |
1338 | { | |
1339 | int i; | |
1340 | ||
1341 | fprintf (file, " (%s)", version_string); | |
1342 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1343 | putc (' ', file); | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1348 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1349 | |
7a13edea NC |
1350 | switch (st_other) |
1351 | { | |
1352 | case 0: break; | |
1353 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1354 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1355 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1356 | default: | |
1357 | /* Some other non-defined flags are also present, so print | |
1358 | everything hex. */ | |
1359 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1360 | } | |
252b5132 | 1361 | |
587ff49e | 1362 | fprintf (file, " %s", name); |
252b5132 RH |
1363 | } |
1364 | break; | |
1365 | } | |
1366 | } | |
1367 | \f | |
1368 | /* Create an entry in an ELF linker hash table. */ | |
1369 | ||
1370 | struct bfd_hash_entry * | |
217aa764 AM |
1371 | _bfd_elf_link_hash_newfunc (struct bfd_hash_entry *entry, |
1372 | struct bfd_hash_table *table, | |
1373 | const char *string) | |
252b5132 | 1374 | { |
252b5132 RH |
1375 | /* Allocate the structure if it has not already been allocated by a |
1376 | subclass. */ | |
51b64d56 AM |
1377 | if (entry == NULL) |
1378 | { | |
1379 | entry = bfd_hash_allocate (table, sizeof (struct elf_link_hash_entry)); | |
1380 | if (entry == NULL) | |
1381 | return entry; | |
1382 | } | |
252b5132 RH |
1383 | |
1384 | /* Call the allocation method of the superclass. */ | |
51b64d56 AM |
1385 | entry = _bfd_link_hash_newfunc (entry, table, string); |
1386 | if (entry != NULL) | |
252b5132 | 1387 | { |
51b64d56 AM |
1388 | struct elf_link_hash_entry *ret = (struct elf_link_hash_entry *) entry; |
1389 | struct elf_link_hash_table *htab = (struct elf_link_hash_table *) table; | |
1390 | ||
252b5132 RH |
1391 | /* Set local fields. */ |
1392 | ret->indx = -1; | |
252b5132 | 1393 | ret->dynindx = -1; |
f6e332e6 AM |
1394 | ret->got = ret->plt = htab->init_refcount; |
1395 | memset (&ret->size, 0, (sizeof (struct elf_link_hash_entry) | |
1396 | - offsetof (struct elf_link_hash_entry, size))); | |
252b5132 RH |
1397 | /* Assume that we have been called by a non-ELF symbol reader. |
1398 | This flag is then reset by the code which reads an ELF input | |
1399 | file. This ensures that a symbol created by a non-ELF symbol | |
1400 | reader will have the flag set correctly. */ | |
f5385ebf | 1401 | ret->non_elf = 1; |
252b5132 RH |
1402 | } |
1403 | ||
51b64d56 | 1404 | return entry; |
252b5132 RH |
1405 | } |
1406 | ||
2920b85c | 1407 | /* Copy data from an indirect symbol to its direct symbol, hiding the |
0a991dfe | 1408 | old indirect symbol. Also used for copying flags to a weakdef. */ |
2920b85c | 1409 | |
c61b8717 | 1410 | void |
9c5bfbb7 | 1411 | _bfd_elf_link_hash_copy_indirect (const struct elf_backend_data *bed, |
217aa764 AM |
1412 | struct elf_link_hash_entry *dir, |
1413 | struct elf_link_hash_entry *ind) | |
2920b85c | 1414 | { |
3c3e9281 | 1415 | bfd_signed_vma tmp; |
b48fa14c | 1416 | bfd_signed_vma lowest_valid = bed->can_refcount; |
3c3e9281 | 1417 | |
2920b85c RH |
1418 | /* Copy down any references that we may have already seen to the |
1419 | symbol which just became indirect. */ | |
1420 | ||
f5385ebf AM |
1421 | dir->ref_dynamic |= ind->ref_dynamic; |
1422 | dir->ref_regular |= ind->ref_regular; | |
1423 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
1424 | dir->non_got_ref |= ind->non_got_ref; | |
1425 | dir->needs_plt |= ind->needs_plt; | |
1426 | dir->pointer_equality_needed |= ind->pointer_equality_needed; | |
2920b85c | 1427 | |
1e370bd2 | 1428 | if (ind->root.type != bfd_link_hash_indirect) |
0a991dfe AM |
1429 | return; |
1430 | ||
51b64d56 | 1431 | /* Copy over the global and procedure linkage table refcount entries. |
2920b85c | 1432 | These may have been already set up by a check_relocs routine. */ |
3c3e9281 | 1433 | tmp = dir->got.refcount; |
b48fa14c | 1434 | if (tmp < lowest_valid) |
2920b85c | 1435 | { |
51b64d56 | 1436 | dir->got.refcount = ind->got.refcount; |
3c3e9281 | 1437 | ind->got.refcount = tmp; |
2920b85c | 1438 | } |
3c3e9281 | 1439 | else |
b48fa14c | 1440 | BFD_ASSERT (ind->got.refcount < lowest_valid); |
2920b85c | 1441 | |
3c3e9281 | 1442 | tmp = dir->plt.refcount; |
b48fa14c | 1443 | if (tmp < lowest_valid) |
2920b85c | 1444 | { |
51b64d56 | 1445 | dir->plt.refcount = ind->plt.refcount; |
3c3e9281 | 1446 | ind->plt.refcount = tmp; |
2920b85c | 1447 | } |
3c3e9281 | 1448 | else |
b48fa14c | 1449 | BFD_ASSERT (ind->plt.refcount < lowest_valid); |
2920b85c RH |
1450 | |
1451 | if (dir->dynindx == -1) | |
1452 | { | |
1453 | dir->dynindx = ind->dynindx; | |
1454 | dir->dynstr_index = ind->dynstr_index; | |
1455 | ind->dynindx = -1; | |
1456 | ind->dynstr_index = 0; | |
1457 | } | |
3c3e9281 AM |
1458 | else |
1459 | BFD_ASSERT (ind->dynindx == -1); | |
2920b85c RH |
1460 | } |
1461 | ||
c61b8717 | 1462 | void |
217aa764 AM |
1463 | _bfd_elf_link_hash_hide_symbol (struct bfd_link_info *info, |
1464 | struct elf_link_hash_entry *h, | |
1465 | bfd_boolean force_local) | |
2920b85c | 1466 | { |
5cab59f6 | 1467 | h->plt = elf_hash_table (info)->init_offset; |
f5385ebf | 1468 | h->needs_plt = 0; |
e5094212 AM |
1469 | if (force_local) |
1470 | { | |
f5385ebf | 1471 | h->forced_local = 1; |
e5094212 AM |
1472 | if (h->dynindx != -1) |
1473 | { | |
1474 | h->dynindx = -1; | |
1475 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1476 | h->dynstr_index); | |
1477 | } | |
1478 | } | |
2920b85c RH |
1479 | } |
1480 | ||
252b5132 RH |
1481 | /* Initialize an ELF linker hash table. */ |
1482 | ||
b34976b6 | 1483 | bfd_boolean |
217aa764 AM |
1484 | _bfd_elf_link_hash_table_init |
1485 | (struct elf_link_hash_table *table, | |
1486 | bfd *abfd, | |
1487 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |
1488 | struct bfd_hash_table *, | |
1489 | const char *)) | |
252b5132 | 1490 | { |
b34976b6 | 1491 | bfd_boolean ret; |
8ea2e4bd | 1492 | |
b34976b6 | 1493 | table->dynamic_sections_created = FALSE; |
252b5132 | 1494 | table->dynobj = NULL; |
963f13ec AO |
1495 | /* Make sure can_refcount is extended to the width and signedness of |
1496 | init_refcount before we subtract one from it. */ | |
5cab59f6 AM |
1497 | table->init_refcount.refcount = get_elf_backend_data (abfd)->can_refcount; |
1498 | table->init_refcount.refcount -= 1; | |
1499 | table->init_offset.offset = -(bfd_vma) 1; | |
252b5132 RH |
1500 | /* The first dynamic symbol is a dummy. */ |
1501 | table->dynsymcount = 1; | |
1502 | table->dynstr = NULL; | |
1503 | table->bucketcount = 0; | |
1504 | table->needed = NULL; | |
1505 | table->hgot = NULL; | |
f5fa8ca2 | 1506 | table->merge_info = NULL; |
3722b82f | 1507 | memset (&table->stab_info, 0, sizeof (table->stab_info)); |
73722af0 | 1508 | memset (&table->eh_info, 0, sizeof (table->eh_info)); |
1ae00f9d | 1509 | table->dynlocal = NULL; |
73722af0 | 1510 | table->runpath = NULL; |
e1918d23 AM |
1511 | table->tls_sec = NULL; |
1512 | table->tls_size = 0; | |
73722af0 AM |
1513 | table->loaded = NULL; |
1514 | ||
1515 | ret = _bfd_link_hash_table_init (&table->root, abfd, newfunc); | |
8ea2e4bd NC |
1516 | table->root.type = bfd_link_elf_hash_table; |
1517 | ||
1518 | return ret; | |
252b5132 RH |
1519 | } |
1520 | ||
1521 | /* Create an ELF linker hash table. */ | |
1522 | ||
1523 | struct bfd_link_hash_table * | |
217aa764 | 1524 | _bfd_elf_link_hash_table_create (bfd *abfd) |
252b5132 RH |
1525 | { |
1526 | struct elf_link_hash_table *ret; | |
dc810e39 | 1527 | bfd_size_type amt = sizeof (struct elf_link_hash_table); |
252b5132 | 1528 | |
217aa764 AM |
1529 | ret = bfd_malloc (amt); |
1530 | if (ret == NULL) | |
252b5132 RH |
1531 | return NULL; |
1532 | ||
1533 | if (! _bfd_elf_link_hash_table_init (ret, abfd, _bfd_elf_link_hash_newfunc)) | |
1534 | { | |
e2d34d7d | 1535 | free (ret); |
252b5132 RH |
1536 | return NULL; |
1537 | } | |
1538 | ||
1539 | return &ret->root; | |
1540 | } | |
1541 | ||
1542 | /* This is a hook for the ELF emulation code in the generic linker to | |
1543 | tell the backend linker what file name to use for the DT_NEEDED | |
4a43e768 | 1544 | entry for a dynamic object. */ |
252b5132 RH |
1545 | |
1546 | void | |
217aa764 | 1547 | bfd_elf_set_dt_needed_name (bfd *abfd, const char *name) |
252b5132 RH |
1548 | { |
1549 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1550 | && bfd_get_format (abfd) == bfd_object) | |
1551 | elf_dt_name (abfd) = name; | |
1552 | } | |
1553 | ||
e56f61be L |
1554 | int |
1555 | bfd_elf_get_dyn_lib_class (bfd *abfd) | |
1556 | { | |
1557 | int lib_class; | |
1558 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1559 | && bfd_get_format (abfd) == bfd_object) | |
1560 | lib_class = elf_dyn_lib_class (abfd); | |
1561 | else | |
1562 | lib_class = 0; | |
1563 | return lib_class; | |
1564 | } | |
1565 | ||
74816898 | 1566 | void |
4a43e768 | 1567 | bfd_elf_set_dyn_lib_class (bfd *abfd, int lib_class) |
74816898 L |
1568 | { |
1569 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1570 | && bfd_get_format (abfd) == bfd_object) | |
4a43e768 | 1571 | elf_dyn_lib_class (abfd) = lib_class; |
74816898 L |
1572 | } |
1573 | ||
252b5132 RH |
1574 | /* Get the list of DT_NEEDED entries for a link. This is a hook for |
1575 | the linker ELF emulation code. */ | |
1576 | ||
1577 | struct bfd_link_needed_list * | |
217aa764 AM |
1578 | bfd_elf_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED, |
1579 | struct bfd_link_info *info) | |
252b5132 | 1580 | { |
0eddce27 | 1581 | if (! is_elf_hash_table (info->hash)) |
252b5132 RH |
1582 | return NULL; |
1583 | return elf_hash_table (info)->needed; | |
1584 | } | |
1585 | ||
a963dc6a L |
1586 | /* Get the list of DT_RPATH/DT_RUNPATH entries for a link. This is a |
1587 | hook for the linker ELF emulation code. */ | |
1588 | ||
1589 | struct bfd_link_needed_list * | |
217aa764 AM |
1590 | bfd_elf_get_runpath_list (bfd *abfd ATTRIBUTE_UNUSED, |
1591 | struct bfd_link_info *info) | |
a963dc6a | 1592 | { |
0eddce27 | 1593 | if (! is_elf_hash_table (info->hash)) |
a963dc6a L |
1594 | return NULL; |
1595 | return elf_hash_table (info)->runpath; | |
1596 | } | |
1597 | ||
252b5132 RH |
1598 | /* Get the name actually used for a dynamic object for a link. This |
1599 | is the SONAME entry if there is one. Otherwise, it is the string | |
1600 | passed to bfd_elf_set_dt_needed_name, or it is the filename. */ | |
1601 | ||
1602 | const char * | |
217aa764 | 1603 | bfd_elf_get_dt_soname (bfd *abfd) |
252b5132 RH |
1604 | { |
1605 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1606 | && bfd_get_format (abfd) == bfd_object) | |
1607 | return elf_dt_name (abfd); | |
1608 | return NULL; | |
1609 | } | |
1610 | ||
1611 | /* Get the list of DT_NEEDED entries from a BFD. This is a hook for | |
1612 | the ELF linker emulation code. */ | |
1613 | ||
b34976b6 | 1614 | bfd_boolean |
217aa764 AM |
1615 | bfd_elf_get_bfd_needed_list (bfd *abfd, |
1616 | struct bfd_link_needed_list **pneeded) | |
252b5132 RH |
1617 | { |
1618 | asection *s; | |
1619 | bfd_byte *dynbuf = NULL; | |
1620 | int elfsec; | |
dc810e39 | 1621 | unsigned long shlink; |
252b5132 RH |
1622 | bfd_byte *extdyn, *extdynend; |
1623 | size_t extdynsize; | |
217aa764 | 1624 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1625 | |
1626 | *pneeded = NULL; | |
1627 | ||
1628 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour | |
1629 | || bfd_get_format (abfd) != bfd_object) | |
b34976b6 | 1630 | return TRUE; |
252b5132 RH |
1631 | |
1632 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
eea6121a | 1633 | if (s == NULL || s->size == 0) |
b34976b6 | 1634 | return TRUE; |
252b5132 | 1635 | |
eea6121a | 1636 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1637 | goto error_return; |
1638 | ||
1639 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
1640 | if (elfsec == -1) | |
1641 | goto error_return; | |
1642 | ||
dc810e39 | 1643 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1644 | |
1645 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1646 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1647 | ||
1648 | extdyn = dynbuf; | |
eea6121a | 1649 | extdynend = extdyn + s->size; |
252b5132 RH |
1650 | for (; extdyn < extdynend; extdyn += extdynsize) |
1651 | { | |
1652 | Elf_Internal_Dyn dyn; | |
1653 | ||
217aa764 | 1654 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1655 | |
1656 | if (dyn.d_tag == DT_NULL) | |
1657 | break; | |
1658 | ||
1659 | if (dyn.d_tag == DT_NEEDED) | |
1660 | { | |
1661 | const char *string; | |
1662 | struct bfd_link_needed_list *l; | |
dc810e39 AM |
1663 | unsigned int tagv = dyn.d_un.d_val; |
1664 | bfd_size_type amt; | |
252b5132 | 1665 | |
dc810e39 | 1666 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1667 | if (string == NULL) |
1668 | goto error_return; | |
1669 | ||
dc810e39 | 1670 | amt = sizeof *l; |
217aa764 | 1671 | l = bfd_alloc (abfd, amt); |
252b5132 RH |
1672 | if (l == NULL) |
1673 | goto error_return; | |
1674 | ||
1675 | l->by = abfd; | |
1676 | l->name = string; | |
1677 | l->next = *pneeded; | |
1678 | *pneeded = l; | |
1679 | } | |
1680 | } | |
1681 | ||
1682 | free (dynbuf); | |
1683 | ||
b34976b6 | 1684 | return TRUE; |
252b5132 RH |
1685 | |
1686 | error_return: | |
1687 | if (dynbuf != NULL) | |
1688 | free (dynbuf); | |
b34976b6 | 1689 | return FALSE; |
252b5132 RH |
1690 | } |
1691 | \f | |
1692 | /* Allocate an ELF string table--force the first byte to be zero. */ | |
1693 | ||
1694 | struct bfd_strtab_hash * | |
217aa764 | 1695 | _bfd_elf_stringtab_init (void) |
252b5132 RH |
1696 | { |
1697 | struct bfd_strtab_hash *ret; | |
1698 | ||
1699 | ret = _bfd_stringtab_init (); | |
1700 | if (ret != NULL) | |
1701 | { | |
1702 | bfd_size_type loc; | |
1703 | ||
b34976b6 | 1704 | loc = _bfd_stringtab_add (ret, "", TRUE, FALSE); |
252b5132 RH |
1705 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1); |
1706 | if (loc == (bfd_size_type) -1) | |
1707 | { | |
1708 | _bfd_stringtab_free (ret); | |
1709 | ret = NULL; | |
1710 | } | |
1711 | } | |
1712 | return ret; | |
1713 | } | |
1714 | \f | |
1715 | /* ELF .o/exec file reading */ | |
1716 | ||
c044fabd | 1717 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 1718 | |
b34976b6 | 1719 | bfd_boolean |
217aa764 | 1720 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 RH |
1721 | { |
1722 | Elf_Internal_Shdr *hdr = elf_elfsections (abfd)[shindex]; | |
1723 | Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd); | |
9c5bfbb7 | 1724 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
90937f86 | 1725 | const char *name; |
252b5132 RH |
1726 | |
1727 | name = elf_string_from_elf_strtab (abfd, hdr->sh_name); | |
1728 | ||
1729 | switch (hdr->sh_type) | |
1730 | { | |
1731 | case SHT_NULL: | |
1732 | /* Inactive section. Throw it away. */ | |
b34976b6 | 1733 | return TRUE; |
252b5132 RH |
1734 | |
1735 | case SHT_PROGBITS: /* Normal section with contents. */ | |
252b5132 RH |
1736 | case SHT_NOBITS: /* .bss section. */ |
1737 | case SHT_HASH: /* .hash section. */ | |
1738 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1739 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1740 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1741 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 1742 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
252b5132 RH |
1743 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); |
1744 | ||
797fc050 AM |
1745 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
1746 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
b34976b6 | 1747 | return FALSE; |
797fc050 AM |
1748 | if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
1749 | { | |
1750 | Elf_Internal_Shdr *dynsymhdr; | |
1751 | ||
1752 | /* The shared libraries distributed with hpux11 have a bogus | |
1753 | sh_link field for the ".dynamic" section. Find the | |
1754 | string table for the ".dynsym" section instead. */ | |
1755 | if (elf_dynsymtab (abfd) != 0) | |
1756 | { | |
1757 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
1758 | hdr->sh_link = dynsymhdr->sh_link; | |
1759 | } | |
1760 | else | |
1761 | { | |
1762 | unsigned int i, num_sec; | |
1763 | ||
1764 | num_sec = elf_numsections (abfd); | |
1765 | for (i = 1; i < num_sec; i++) | |
1766 | { | |
1767 | dynsymhdr = elf_elfsections (abfd)[i]; | |
1768 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
1769 | { | |
1770 | hdr->sh_link = dynsymhdr->sh_link; | |
1771 | break; | |
1772 | } | |
1773 | } | |
1774 | } | |
1775 | } | |
1776 | break; | |
1777 | ||
252b5132 RH |
1778 | case SHT_SYMTAB: /* A symbol table */ |
1779 | if (elf_onesymtab (abfd) == shindex) | |
b34976b6 | 1780 | return TRUE; |
252b5132 RH |
1781 | |
1782 | BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym); | |
1783 | BFD_ASSERT (elf_onesymtab (abfd) == 0); | |
1784 | elf_onesymtab (abfd) = shindex; | |
1785 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1786 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1787 | abfd->flags |= HAS_SYMS; | |
1788 | ||
1789 | /* Sometimes a shared object will map in the symbol table. If | |
1790 | SHF_ALLOC is set, and this is a shared object, then we also | |
1791 | treat this section as a BFD section. We can not base the | |
1792 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1049f94e | 1793 | set in a relocatable object file, which would confuse the |
252b5132 RH |
1794 | linker. */ |
1795 | if ((hdr->sh_flags & SHF_ALLOC) != 0 | |
1796 | && (abfd->flags & DYNAMIC) != 0 | |
1797 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
b34976b6 | 1798 | return FALSE; |
252b5132 | 1799 | |
b34976b6 | 1800 | return TRUE; |
252b5132 RH |
1801 | |
1802 | case SHT_DYNSYM: /* A dynamic symbol table */ | |
1803 | if (elf_dynsymtab (abfd) == shindex) | |
b34976b6 | 1804 | return TRUE; |
252b5132 RH |
1805 | |
1806 | BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym); | |
1807 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); | |
1808 | elf_dynsymtab (abfd) = shindex; | |
1809 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1810 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1811 | abfd->flags |= HAS_SYMS; | |
1812 | ||
1813 | /* Besides being a symbol table, we also treat this as a regular | |
1814 | section, so that objcopy can handle it. */ | |
1815 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1816 | ||
9ad5cbcf AM |
1817 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */ |
1818 | if (elf_symtab_shndx (abfd) == shindex) | |
b34976b6 | 1819 | return TRUE; |
9ad5cbcf AM |
1820 | |
1821 | /* Get the associated symbol table. */ | |
1822 | if (! bfd_section_from_shdr (abfd, hdr->sh_link) | |
1823 | || hdr->sh_link != elf_onesymtab (abfd)) | |
b34976b6 | 1824 | return FALSE; |
9ad5cbcf AM |
1825 | |
1826 | elf_symtab_shndx (abfd) = shindex; | |
1827 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1828 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
b34976b6 | 1829 | return TRUE; |
9ad5cbcf | 1830 | |
252b5132 RH |
1831 | case SHT_STRTAB: /* A string table */ |
1832 | if (hdr->bfd_section != NULL) | |
b34976b6 | 1833 | return TRUE; |
252b5132 RH |
1834 | if (ehdr->e_shstrndx == shindex) |
1835 | { | |
1836 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1837 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
b34976b6 | 1838 | return TRUE; |
252b5132 RH |
1839 | } |
1840 | { | |
9ad5cbcf | 1841 | unsigned int i, num_sec; |
252b5132 | 1842 | |
9ad5cbcf AM |
1843 | num_sec = elf_numsections (abfd); |
1844 | for (i = 1; i < num_sec; i++) | |
252b5132 RH |
1845 | { |
1846 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1847 | if (hdr2->sh_link == shindex) | |
1848 | { | |
1849 | if (! bfd_section_from_shdr (abfd, i)) | |
b34976b6 | 1850 | return FALSE; |
252b5132 RH |
1851 | if (elf_onesymtab (abfd) == i) |
1852 | { | |
1853 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1854 | elf_elfsections (abfd)[shindex] = | |
1855 | &elf_tdata (abfd)->strtab_hdr; | |
b34976b6 | 1856 | return TRUE; |
252b5132 RH |
1857 | } |
1858 | if (elf_dynsymtab (abfd) == i) | |
1859 | { | |
1860 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1861 | elf_elfsections (abfd)[shindex] = hdr = | |
1862 | &elf_tdata (abfd)->dynstrtab_hdr; | |
1863 | /* We also treat this as a regular section, so | |
1864 | that objcopy can handle it. */ | |
1865 | break; | |
1866 | } | |
1867 | #if 0 /* Not handling other string tables specially right now. */ | |
1868 | hdr2 = elf_elfsections (abfd)[i]; /* in case it moved */ | |
1869 | /* We have a strtab for some random other section. */ | |
1870 | newsect = (asection *) hdr2->bfd_section; | |
1871 | if (!newsect) | |
1872 | break; | |
1873 | hdr->bfd_section = newsect; | |
1874 | hdr2 = &elf_section_data (newsect)->str_hdr; | |
1875 | *hdr2 = *hdr; | |
1876 | elf_elfsections (abfd)[shindex] = hdr2; | |
1877 | #endif | |
1878 | } | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1883 | ||
1884 | case SHT_REL: | |
1885 | case SHT_RELA: | |
1886 | /* *These* do a lot of work -- but build no sections! */ | |
1887 | { | |
1888 | asection *target_sect; | |
1889 | Elf_Internal_Shdr *hdr2; | |
9ad5cbcf | 1890 | unsigned int num_sec = elf_numsections (abfd); |
252b5132 | 1891 | |
03ae5f59 | 1892 | /* Check for a bogus link to avoid crashing. */ |
9ad5cbcf AM |
1893 | if ((hdr->sh_link >= SHN_LORESERVE && hdr->sh_link <= SHN_HIRESERVE) |
1894 | || hdr->sh_link >= num_sec) | |
03ae5f59 ILT |
1895 | { |
1896 | ((*_bfd_error_handler) | |
d003868e AM |
1897 | (_("%B: invalid link %lu for reloc section %s (index %u)"), |
1898 | abfd, hdr->sh_link, name, shindex)); | |
03ae5f59 ILT |
1899 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); |
1900 | } | |
1901 | ||
252b5132 RH |
1902 | /* For some incomprehensible reason Oracle distributes |
1903 | libraries for Solaris in which some of the objects have | |
1904 | bogus sh_link fields. It would be nice if we could just | |
1905 | reject them, but, unfortunately, some people need to use | |
1906 | them. We scan through the section headers; if we find only | |
1907 | one suitable symbol table, we clobber the sh_link to point | |
1908 | to it. I hope this doesn't break anything. */ | |
1909 | if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
1910 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) | |
1911 | { | |
9ad5cbcf | 1912 | unsigned int scan; |
252b5132 RH |
1913 | int found; |
1914 | ||
1915 | found = 0; | |
9ad5cbcf | 1916 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
1917 | { |
1918 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
1919 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
1920 | { | |
1921 | if (found != 0) | |
1922 | { | |
1923 | found = 0; | |
1924 | break; | |
1925 | } | |
1926 | found = scan; | |
1927 | } | |
1928 | } | |
1929 | if (found != 0) | |
1930 | hdr->sh_link = found; | |
1931 | } | |
1932 | ||
1933 | /* Get the symbol table. */ | |
1934 | if (elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB | |
1935 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) | |
b34976b6 | 1936 | return FALSE; |
252b5132 RH |
1937 | |
1938 | /* If this reloc section does not use the main symbol table we | |
1939 | don't treat it as a reloc section. BFD can't adequately | |
1940 | represent such a section, so at least for now, we don't | |
c044fabd | 1941 | try. We just present it as a normal section. We also |
60bcf0fa | 1942 | can't use it as a reloc section if it points to the null |
c044fabd | 1943 | section. */ |
60bcf0fa | 1944 | if (hdr->sh_link != elf_onesymtab (abfd) || hdr->sh_info == SHN_UNDEF) |
252b5132 RH |
1945 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); |
1946 | ||
1947 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
b34976b6 | 1948 | return FALSE; |
252b5132 RH |
1949 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
1950 | if (target_sect == NULL) | |
b34976b6 | 1951 | return FALSE; |
252b5132 RH |
1952 | |
1953 | if ((target_sect->flags & SEC_RELOC) == 0 | |
1954 | || target_sect->reloc_count == 0) | |
1955 | hdr2 = &elf_section_data (target_sect)->rel_hdr; | |
1956 | else | |
1957 | { | |
dc810e39 | 1958 | bfd_size_type amt; |
252b5132 | 1959 | BFD_ASSERT (elf_section_data (target_sect)->rel_hdr2 == NULL); |
dc810e39 | 1960 | amt = sizeof (*hdr2); |
217aa764 | 1961 | hdr2 = bfd_alloc (abfd, amt); |
252b5132 RH |
1962 | elf_section_data (target_sect)->rel_hdr2 = hdr2; |
1963 | } | |
1964 | *hdr2 = *hdr; | |
1965 | elf_elfsections (abfd)[shindex] = hdr2; | |
d9bc7a44 | 1966 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
1967 | target_sect->flags |= SEC_RELOC; |
1968 | target_sect->relocation = NULL; | |
1969 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
1970 | /* In the section to which the relocations apply, mark whether |
1971 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 1972 | if (hdr->sh_size != 0) |
68bfbfcc | 1973 | target_sect->use_rela_p = hdr->sh_type == SHT_RELA; |
252b5132 | 1974 | abfd->flags |= HAS_RELOC; |
b34976b6 | 1975 | return TRUE; |
252b5132 RH |
1976 | } |
1977 | break; | |
1978 | ||
1979 | case SHT_GNU_verdef: | |
1980 | elf_dynverdef (abfd) = shindex; | |
1981 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
1982 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1983 | break; | |
1984 | ||
1985 | case SHT_GNU_versym: | |
1986 | elf_dynversym (abfd) = shindex; | |
1987 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
1988 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1989 | break; | |
1990 | ||
1991 | case SHT_GNU_verneed: | |
1992 | elf_dynverref (abfd) = shindex; | |
1993 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
1994 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1995 | break; | |
1996 | ||
1997 | case SHT_SHLIB: | |
b34976b6 | 1998 | return TRUE; |
252b5132 | 1999 | |
dbb410c3 | 2000 | case SHT_GROUP: |
b885599b AM |
2001 | /* We need a BFD section for objcopy and relocatable linking, |
2002 | and it's handy to have the signature available as the section | |
2003 | name. */ | |
2004 | name = group_signature (abfd, hdr); | |
2005 | if (name == NULL) | |
b34976b6 | 2006 | return FALSE; |
dbb410c3 | 2007 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name)) |
b34976b6 | 2008 | return FALSE; |
dbb410c3 AM |
2009 | if (hdr->contents != NULL) |
2010 | { | |
2011 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
2012 | unsigned int n_elt = hdr->sh_size / 4; | |
2013 | asection *s; | |
2014 | ||
b885599b AM |
2015 | if (idx->flags & GRP_COMDAT) |
2016 | hdr->bfd_section->flags | |
2017 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
2018 | ||
45c5e9ed L |
2019 | /* We try to keep the same section order as it comes in. */ |
2020 | idx += n_elt; | |
dbb410c3 | 2021 | while (--n_elt != 0) |
45c5e9ed | 2022 | if ((s = (--idx)->shdr->bfd_section) != NULL |
945906ff | 2023 | && elf_next_in_group (s) != NULL) |
dbb410c3 | 2024 | { |
945906ff | 2025 | elf_next_in_group (hdr->bfd_section) = s; |
dbb410c3 AM |
2026 | break; |
2027 | } | |
2028 | } | |
2029 | break; | |
2030 | ||
252b5132 RH |
2031 | default: |
2032 | /* Check for any processor-specific section types. */ | |
2033 | { | |
2034 | if (bed->elf_backend_section_from_shdr) | |
2035 | (*bed->elf_backend_section_from_shdr) (abfd, hdr, name); | |
2036 | } | |
2037 | break; | |
2038 | } | |
2039 | ||
b34976b6 | 2040 | return TRUE; |
252b5132 RH |
2041 | } |
2042 | ||
ec338859 AM |
2043 | /* Return the section for the local symbol specified by ABFD, R_SYMNDX. |
2044 | Return SEC for sections that have no elf section, and NULL on error. */ | |
2045 | ||
2046 | asection * | |
217aa764 AM |
2047 | bfd_section_from_r_symndx (bfd *abfd, |
2048 | struct sym_sec_cache *cache, | |
2049 | asection *sec, | |
2050 | unsigned long r_symndx) | |
ec338859 | 2051 | { |
ec338859 | 2052 | Elf_Internal_Shdr *symtab_hdr; |
6cdc0ccc AM |
2053 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
2054 | Elf_External_Sym_Shndx eshndx; | |
2055 | Elf_Internal_Sym isym; | |
ec338859 AM |
2056 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2057 | ||
2058 | if (cache->abfd == abfd && cache->indx[ent] == r_symndx) | |
2059 | return cache->sec[ent]; | |
2060 | ||
2061 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
2062 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, |
2063 | &isym, esym, &eshndx) == NULL) | |
ec338859 | 2064 | return NULL; |
9ad5cbcf | 2065 | |
ec338859 AM |
2066 | if (cache->abfd != abfd) |
2067 | { | |
2068 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2069 | cache->abfd = abfd; | |
2070 | } | |
2071 | cache->indx[ent] = r_symndx; | |
2072 | cache->sec[ent] = sec; | |
50bc7936 AM |
2073 | if ((isym.st_shndx != SHN_UNDEF && isym.st_shndx < SHN_LORESERVE) |
2074 | || isym.st_shndx > SHN_HIRESERVE) | |
ec338859 AM |
2075 | { |
2076 | asection *s; | |
6cdc0ccc | 2077 | s = bfd_section_from_elf_index (abfd, isym.st_shndx); |
ec338859 AM |
2078 | if (s != NULL) |
2079 | cache->sec[ent] = s; | |
2080 | } | |
2081 | return cache->sec[ent]; | |
2082 | } | |
2083 | ||
252b5132 RH |
2084 | /* Given an ELF section number, retrieve the corresponding BFD |
2085 | section. */ | |
2086 | ||
2087 | asection * | |
217aa764 | 2088 | bfd_section_from_elf_index (bfd *abfd, unsigned int index) |
252b5132 | 2089 | { |
9ad5cbcf | 2090 | if (index >= elf_numsections (abfd)) |
252b5132 RH |
2091 | return NULL; |
2092 | return elf_elfsections (abfd)[index]->bfd_section; | |
2093 | } | |
2094 | ||
2f89ff8d L |
2095 | static struct bfd_elf_special_section const special_sections[] = |
2096 | { | |
7dcb9820 | 2097 | { ".bss", 4, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
6723a9f4 | 2098 | { ".gnu.linkonce.b",15, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
7dcb9820 AM |
2099 | { ".comment", 8, 0, SHT_PROGBITS, 0 }, |
2100 | { ".data", 5, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2101 | { ".data1", 6, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2102 | { ".debug", 6, 0, SHT_PROGBITS, 0 }, | |
2103 | { ".fini", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2104 | { ".init", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2105 | { ".line", 5, 0, SHT_PROGBITS, 0 }, | |
2106 | { ".rodata", 7, -2, SHT_PROGBITS, SHF_ALLOC }, | |
2107 | { ".rodata1", 8, 0, SHT_PROGBITS, SHF_ALLOC }, | |
2108 | { ".tbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2109 | { ".tdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
2110 | { ".text", 5, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2111 | { ".init_array", 11, 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2112 | { ".fini_array", 11, 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2113 | { ".preinit_array", 14, 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, | |
2114 | { ".debug_line", 11, 0, SHT_PROGBITS, 0 }, | |
2115 | { ".debug_info", 11, 0, SHT_PROGBITS, 0 }, | |
2116 | { ".debug_abbrev", 13, 0, SHT_PROGBITS, 0 }, | |
2117 | { ".debug_aranges", 14, 0, SHT_PROGBITS, 0 }, | |
2118 | { ".dynamic", 8, 0, SHT_DYNAMIC, SHF_ALLOC }, | |
2119 | { ".dynstr", 7, 0, SHT_STRTAB, SHF_ALLOC }, | |
2120 | { ".dynsym", 7, 0, SHT_DYNSYM, SHF_ALLOC }, | |
2121 | { ".got", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2122 | { ".hash", 5, 0, SHT_HASH, SHF_ALLOC }, | |
2123 | { ".interp", 7, 0, SHT_PROGBITS, 0 }, | |
2124 | { ".plt", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, | |
2125 | { ".shstrtab", 9, 0, SHT_STRTAB, 0 }, | |
2126 | { ".strtab", 7, 0, SHT_STRTAB, 0 }, | |
2127 | { ".symtab", 7, 0, SHT_SYMTAB, 0 }, | |
2128 | { ".gnu.version", 12, 0, SHT_GNU_versym, 0 }, | |
2129 | { ".gnu.version_d", 14, 0, SHT_GNU_verdef, 0 }, | |
2130 | { ".gnu.version_r", 14, 0, SHT_GNU_verneed, 0 }, | |
45c5e9ed | 2131 | { ".note.GNU-stack",15, 0, SHT_PROGBITS, 0 }, |
7dcb9820 AM |
2132 | { ".note", 5, -1, SHT_NOTE, 0 }, |
2133 | { ".rela", 5, -1, SHT_RELA, 0 }, | |
2134 | { ".rel", 4, -1, SHT_REL, 0 }, | |
2135 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
7f1204bb JJ |
2136 | { ".gnu.liblist", 12, 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2137 | { ".gnu.conflict", 13, 0, SHT_RELA, SHF_ALLOC }, | |
7dcb9820 | 2138 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2139 | }; |
2140 | ||
2141 | static const struct bfd_elf_special_section * | |
2142 | get_special_section (const char *name, | |
2143 | const struct bfd_elf_special_section *special_sections, | |
2144 | unsigned int rela) | |
2145 | { | |
2146 | int i; | |
7dcb9820 | 2147 | int len = strlen (name); |
2f89ff8d L |
2148 | |
2149 | for (i = 0; special_sections[i].prefix != NULL; i++) | |
7dcb9820 AM |
2150 | { |
2151 | int suffix_len; | |
2152 | int prefix_len = special_sections[i].prefix_length; | |
2153 | ||
2154 | if (len < prefix_len) | |
2155 | continue; | |
2156 | if (memcmp (name, special_sections[i].prefix, prefix_len) != 0) | |
2157 | continue; | |
2158 | ||
2159 | suffix_len = special_sections[i].suffix_length; | |
2160 | if (suffix_len <= 0) | |
2161 | { | |
2162 | if (name[prefix_len] != 0) | |
2163 | { | |
2164 | if (suffix_len == 0) | |
2165 | continue; | |
2166 | if (name[prefix_len] != '.' | |
2167 | && (suffix_len == -2 | |
2168 | || (rela && special_sections[i].type == SHT_REL))) | |
2169 | continue; | |
2170 | } | |
2171 | } | |
2172 | else | |
2173 | { | |
2174 | if (len < prefix_len + suffix_len) | |
2175 | continue; | |
2176 | if (memcmp (name + len - suffix_len, | |
2177 | special_sections[i].prefix + prefix_len, | |
2178 | suffix_len) != 0) | |
2179 | continue; | |
2180 | } | |
2f89ff8d | 2181 | return &special_sections[i]; |
7dcb9820 | 2182 | } |
2f89ff8d L |
2183 | |
2184 | return NULL; | |
2185 | } | |
2186 | ||
7dcb9820 AM |
2187 | const struct bfd_elf_special_section * |
2188 | _bfd_elf_get_sec_type_attr (bfd *abfd, const char *name) | |
2f89ff8d | 2189 | { |
9c5bfbb7 | 2190 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7dcb9820 | 2191 | const struct bfd_elf_special_section *ssect = NULL; |
2f89ff8d L |
2192 | |
2193 | /* See if this is one of the special sections. */ | |
2194 | if (name) | |
2195 | { | |
9c5bfbb7 | 2196 | unsigned int rela = bed->default_use_rela_p; |
2f89ff8d L |
2197 | |
2198 | if (bed->special_sections) | |
2199 | ssect = get_special_section (name, bed->special_sections, rela); | |
2200 | ||
2201 | if (! ssect) | |
2202 | ssect = get_special_section (name, special_sections, rela); | |
2f89ff8d L |
2203 | } |
2204 | ||
7dcb9820 | 2205 | return ssect; |
2f89ff8d L |
2206 | } |
2207 | ||
b34976b6 | 2208 | bfd_boolean |
217aa764 | 2209 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2210 | { |
2211 | struct bfd_elf_section_data *sdata; | |
7dcb9820 | 2212 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2213 | |
f0abc2a1 AM |
2214 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2215 | if (sdata == NULL) | |
2216 | { | |
217aa764 | 2217 | sdata = bfd_zalloc (abfd, sizeof (*sdata)); |
f0abc2a1 AM |
2218 | if (sdata == NULL) |
2219 | return FALSE; | |
217aa764 | 2220 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2221 | } |
bf572ba0 | 2222 | |
3cddba1e | 2223 | elf_section_type (sec) = SHT_NULL; |
7dcb9820 AM |
2224 | ssect = _bfd_elf_get_sec_type_attr (abfd, sec->name); |
2225 | if (ssect != NULL) | |
2f89ff8d | 2226 | { |
7dcb9820 AM |
2227 | elf_section_type (sec) = ssect->type; |
2228 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2229 | } |
2230 | ||
bf572ba0 | 2231 | /* Indicate whether or not this section should use RELA relocations. */ |
68bfbfcc | 2232 | sec->use_rela_p = get_elf_backend_data (abfd)->default_use_rela_p; |
bf572ba0 | 2233 | |
b34976b6 | 2234 | return TRUE; |
252b5132 RH |
2235 | } |
2236 | ||
2237 | /* Create a new bfd section from an ELF program header. | |
2238 | ||
2239 | Since program segments have no names, we generate a synthetic name | |
2240 | of the form segment<NUM>, where NUM is generally the index in the | |
2241 | program header table. For segments that are split (see below) we | |
2242 | generate the names segment<NUM>a and segment<NUM>b. | |
2243 | ||
2244 | Note that some program segments may have a file size that is different than | |
2245 | (less than) the memory size. All this means is that at execution the | |
2246 | system must allocate the amount of memory specified by the memory size, | |
2247 | but only initialize it with the first "file size" bytes read from the | |
2248 | file. This would occur for example, with program segments consisting | |
2249 | of combined data+bss. | |
2250 | ||
2251 | To handle the above situation, this routine generates TWO bfd sections | |
2252 | for the single program segment. The first has the length specified by | |
2253 | the file size of the segment, and the second has the length specified | |
2254 | by the difference between the two sizes. In effect, the segment is split | |
2255 | into it's initialized and uninitialized parts. | |
2256 | ||
2257 | */ | |
2258 | ||
b34976b6 | 2259 | bfd_boolean |
217aa764 AM |
2260 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2261 | Elf_Internal_Phdr *hdr, | |
2262 | int index, | |
2263 | const char *typename) | |
252b5132 RH |
2264 | { |
2265 | asection *newsect; | |
2266 | char *name; | |
2267 | char namebuf[64]; | |
d4c88bbb | 2268 | size_t len; |
252b5132 RH |
2269 | int split; |
2270 | ||
2271 | split = ((hdr->p_memsz > 0) | |
2272 | && (hdr->p_filesz > 0) | |
2273 | && (hdr->p_memsz > hdr->p_filesz)); | |
27ac83bf | 2274 | sprintf (namebuf, "%s%d%s", typename, index, split ? "a" : ""); |
d4c88bbb | 2275 | len = strlen (namebuf) + 1; |
217aa764 | 2276 | name = bfd_alloc (abfd, len); |
252b5132 | 2277 | if (!name) |
b34976b6 | 2278 | return FALSE; |
d4c88bbb | 2279 | memcpy (name, namebuf, len); |
252b5132 RH |
2280 | newsect = bfd_make_section (abfd, name); |
2281 | if (newsect == NULL) | |
b34976b6 | 2282 | return FALSE; |
252b5132 RH |
2283 | newsect->vma = hdr->p_vaddr; |
2284 | newsect->lma = hdr->p_paddr; | |
eea6121a | 2285 | newsect->size = hdr->p_filesz; |
252b5132 RH |
2286 | newsect->filepos = hdr->p_offset; |
2287 | newsect->flags |= SEC_HAS_CONTENTS; | |
57e24cbf | 2288 | newsect->alignment_power = bfd_log2 (hdr->p_align); |
252b5132 RH |
2289 | if (hdr->p_type == PT_LOAD) |
2290 | { | |
2291 | newsect->flags |= SEC_ALLOC; | |
2292 | newsect->flags |= SEC_LOAD; | |
2293 | if (hdr->p_flags & PF_X) | |
2294 | { | |
2295 | /* FIXME: all we known is that it has execute PERMISSION, | |
c044fabd | 2296 | may be data. */ |
252b5132 RH |
2297 | newsect->flags |= SEC_CODE; |
2298 | } | |
2299 | } | |
2300 | if (!(hdr->p_flags & PF_W)) | |
2301 | { | |
2302 | newsect->flags |= SEC_READONLY; | |
2303 | } | |
2304 | ||
2305 | if (split) | |
2306 | { | |
27ac83bf | 2307 | sprintf (namebuf, "%s%db", typename, index); |
d4c88bbb | 2308 | len = strlen (namebuf) + 1; |
217aa764 | 2309 | name = bfd_alloc (abfd, len); |
252b5132 | 2310 | if (!name) |
b34976b6 | 2311 | return FALSE; |
d4c88bbb | 2312 | memcpy (name, namebuf, len); |
252b5132 RH |
2313 | newsect = bfd_make_section (abfd, name); |
2314 | if (newsect == NULL) | |
b34976b6 | 2315 | return FALSE; |
252b5132 RH |
2316 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2317 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2318 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
252b5132 RH |
2319 | if (hdr->p_type == PT_LOAD) |
2320 | { | |
2321 | newsect->flags |= SEC_ALLOC; | |
2322 | if (hdr->p_flags & PF_X) | |
2323 | newsect->flags |= SEC_CODE; | |
2324 | } | |
2325 | if (!(hdr->p_flags & PF_W)) | |
2326 | newsect->flags |= SEC_READONLY; | |
2327 | } | |
2328 | ||
b34976b6 | 2329 | return TRUE; |
252b5132 RH |
2330 | } |
2331 | ||
b34976b6 | 2332 | bfd_boolean |
217aa764 | 2333 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int index) |
20cfcaae | 2334 | { |
9c5bfbb7 | 2335 | const struct elf_backend_data *bed; |
20cfcaae NC |
2336 | |
2337 | switch (hdr->p_type) | |
2338 | { | |
2339 | case PT_NULL: | |
2340 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "null"); | |
2341 | ||
2342 | case PT_LOAD: | |
2343 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "load"); | |
2344 | ||
2345 | case PT_DYNAMIC: | |
2346 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "dynamic"); | |
2347 | ||
2348 | case PT_INTERP: | |
2349 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "interp"); | |
2350 | ||
2351 | case PT_NOTE: | |
2352 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, index, "note")) | |
b34976b6 | 2353 | return FALSE; |
217aa764 | 2354 | if (! elfcore_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) |
b34976b6 AM |
2355 | return FALSE; |
2356 | return TRUE; | |
20cfcaae NC |
2357 | |
2358 | case PT_SHLIB: | |
2359 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "shlib"); | |
2360 | ||
2361 | case PT_PHDR: | |
2362 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "phdr"); | |
2363 | ||
811072d8 RM |
2364 | case PT_GNU_EH_FRAME: |
2365 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, | |
2366 | "eh_frame_hdr"); | |
2367 | ||
9ee5e499 JJ |
2368 | case PT_GNU_STACK: |
2369 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "stack"); | |
2370 | ||
8c37241b JJ |
2371 | case PT_GNU_RELRO: |
2372 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "relro"); | |
2373 | ||
20cfcaae NC |
2374 | default: |
2375 | /* Check for any processor-specific program segment types. | |
c044fabd | 2376 | If no handler for them, default to making "segment" sections. */ |
20cfcaae NC |
2377 | bed = get_elf_backend_data (abfd); |
2378 | if (bed->elf_backend_section_from_phdr) | |
2379 | return (*bed->elf_backend_section_from_phdr) (abfd, hdr, index); | |
2380 | else | |
2381 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "segment"); | |
2382 | } | |
2383 | } | |
2384 | ||
23bc299b | 2385 | /* Initialize REL_HDR, the section-header for new section, containing |
b34976b6 | 2386 | relocations against ASECT. If USE_RELA_P is TRUE, we use RELA |
23bc299b MM |
2387 | relocations; otherwise, we use REL relocations. */ |
2388 | ||
b34976b6 | 2389 | bfd_boolean |
217aa764 AM |
2390 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
2391 | Elf_Internal_Shdr *rel_hdr, | |
2392 | asection *asect, | |
2393 | bfd_boolean use_rela_p) | |
23bc299b MM |
2394 | { |
2395 | char *name; | |
9c5bfbb7 | 2396 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dc810e39 | 2397 | bfd_size_type amt = sizeof ".rela" + strlen (asect->name); |
23bc299b | 2398 | |
dc810e39 | 2399 | name = bfd_alloc (abfd, amt); |
23bc299b | 2400 | if (name == NULL) |
b34976b6 | 2401 | return FALSE; |
23bc299b MM |
2402 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); |
2403 | rel_hdr->sh_name = | |
2b0f7ef9 | 2404 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, |
b34976b6 | 2405 | FALSE); |
23bc299b | 2406 | if (rel_hdr->sh_name == (unsigned int) -1) |
b34976b6 | 2407 | return FALSE; |
23bc299b MM |
2408 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
2409 | rel_hdr->sh_entsize = (use_rela_p | |
2410 | ? bed->s->sizeof_rela | |
2411 | : bed->s->sizeof_rel); | |
45d6a902 | 2412 | rel_hdr->sh_addralign = 1 << bed->s->log_file_align; |
23bc299b MM |
2413 | rel_hdr->sh_flags = 0; |
2414 | rel_hdr->sh_addr = 0; | |
2415 | rel_hdr->sh_size = 0; | |
2416 | rel_hdr->sh_offset = 0; | |
2417 | ||
b34976b6 | 2418 | return TRUE; |
23bc299b MM |
2419 | } |
2420 | ||
252b5132 RH |
2421 | /* Set up an ELF internal section header for a section. */ |
2422 | ||
252b5132 | 2423 | static void |
217aa764 | 2424 | elf_fake_sections (bfd *abfd, asection *asect, void *failedptrarg) |
252b5132 | 2425 | { |
9c5bfbb7 | 2426 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 2427 | bfd_boolean *failedptr = failedptrarg; |
252b5132 RH |
2428 | Elf_Internal_Shdr *this_hdr; |
2429 | ||
2430 | if (*failedptr) | |
2431 | { | |
2432 | /* We already failed; just get out of the bfd_map_over_sections | |
2433 | loop. */ | |
2434 | return; | |
2435 | } | |
2436 | ||
2437 | this_hdr = &elf_section_data (asect)->this_hdr; | |
2438 | ||
e57b5356 AM |
2439 | this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
2440 | asect->name, FALSE); | |
2441 | if (this_hdr->sh_name == (unsigned int) -1) | |
252b5132 | 2442 | { |
b34976b6 | 2443 | *failedptr = TRUE; |
252b5132 RH |
2444 | return; |
2445 | } | |
2446 | ||
2447 | this_hdr->sh_flags = 0; | |
2448 | ||
2449 | if ((asect->flags & SEC_ALLOC) != 0 | |
2450 | || asect->user_set_vma) | |
2451 | this_hdr->sh_addr = asect->vma; | |
2452 | else | |
2453 | this_hdr->sh_addr = 0; | |
2454 | ||
2455 | this_hdr->sh_offset = 0; | |
eea6121a | 2456 | this_hdr->sh_size = asect->size; |
252b5132 RH |
2457 | this_hdr->sh_link = 0; |
2458 | this_hdr->sh_addralign = 1 << asect->alignment_power; | |
2459 | /* The sh_entsize and sh_info fields may have been set already by | |
2460 | copy_private_section_data. */ | |
2461 | ||
2462 | this_hdr->bfd_section = asect; | |
2463 | this_hdr->contents = NULL; | |
2464 | ||
3cddba1e L |
2465 | /* If the section type is unspecified, we set it based on |
2466 | asect->flags. */ | |
2467 | if (this_hdr->sh_type == SHT_NULL) | |
2468 | { | |
45c5e9ed L |
2469 | if ((asect->flags & SEC_GROUP) != 0) |
2470 | { | |
2471 | /* We also need to mark SHF_GROUP here for relocatable | |
2472 | link. */ | |
2473 | struct bfd_link_order *l; | |
2474 | asection *elt; | |
2475 | ||
2476 | for (l = asect->link_order_head; l != NULL; l = l->next) | |
2477 | if (l->type == bfd_indirect_link_order | |
2478 | && (elt = elf_next_in_group (l->u.indirect.section)) != NULL) | |
2479 | do | |
2480 | { | |
2481 | /* The name is not important. Anything will do. */ | |
2482 | elf_group_name (elt->output_section) = "G"; | |
2483 | elf_section_flags (elt->output_section) |= SHF_GROUP; | |
2484 | ||
2485 | elt = elf_next_in_group (elt); | |
2486 | /* During a relocatable link, the lists are | |
2487 | circular. */ | |
2488 | } | |
2489 | while (elt != elf_next_in_group (l->u.indirect.section)); | |
2490 | ||
2491 | this_hdr->sh_type = SHT_GROUP; | |
2492 | } | |
2493 | else if ((asect->flags & SEC_ALLOC) != 0 | |
3cddba1e L |
2494 | && (((asect->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
2495 | || (asect->flags & SEC_NEVER_LOAD) != 0)) | |
2496 | this_hdr->sh_type = SHT_NOBITS; | |
2497 | else | |
2498 | this_hdr->sh_type = SHT_PROGBITS; | |
2499 | } | |
2500 | ||
2f89ff8d | 2501 | switch (this_hdr->sh_type) |
252b5132 | 2502 | { |
2f89ff8d | 2503 | default: |
2f89ff8d L |
2504 | break; |
2505 | ||
2506 | case SHT_STRTAB: | |
2507 | case SHT_INIT_ARRAY: | |
2508 | case SHT_FINI_ARRAY: | |
2509 | case SHT_PREINIT_ARRAY: | |
2510 | case SHT_NOTE: | |
2511 | case SHT_NOBITS: | |
2512 | case SHT_PROGBITS: | |
2513 | break; | |
2514 | ||
2515 | case SHT_HASH: | |
c7ac6ff8 | 2516 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 2517 | break; |
5de3bf90 | 2518 | |
2f89ff8d | 2519 | case SHT_DYNSYM: |
252b5132 | 2520 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
2521 | break; |
2522 | ||
2523 | case SHT_DYNAMIC: | |
252b5132 | 2524 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
2525 | break; |
2526 | ||
2527 | case SHT_RELA: | |
2528 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
2529 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2530 | break; | |
2531 | ||
2532 | case SHT_REL: | |
2533 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
2534 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2535 | break; | |
2536 | ||
2537 | case SHT_GNU_versym: | |
252b5132 | 2538 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
2539 | break; |
2540 | ||
2541 | case SHT_GNU_verdef: | |
252b5132 RH |
2542 | this_hdr->sh_entsize = 0; |
2543 | /* objcopy or strip will copy over sh_info, but may not set | |
2544 | cverdefs. The linker will set cverdefs, but sh_info will be | |
2545 | zero. */ | |
2546 | if (this_hdr->sh_info == 0) | |
2547 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2548 | else | |
2549 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
2550 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
2551 | break; |
2552 | ||
2553 | case SHT_GNU_verneed: | |
252b5132 RH |
2554 | this_hdr->sh_entsize = 0; |
2555 | /* objcopy or strip will copy over sh_info, but may not set | |
2556 | cverrefs. The linker will set cverrefs, but sh_info will be | |
2557 | zero. */ | |
2558 | if (this_hdr->sh_info == 0) | |
2559 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
2560 | else | |
2561 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
2562 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
2563 | break; |
2564 | ||
2565 | case SHT_GROUP: | |
dbb410c3 | 2566 | this_hdr->sh_entsize = 4; |
2f89ff8d | 2567 | break; |
dbb410c3 | 2568 | } |
252b5132 RH |
2569 | |
2570 | if ((asect->flags & SEC_ALLOC) != 0) | |
2571 | this_hdr->sh_flags |= SHF_ALLOC; | |
2572 | if ((asect->flags & SEC_READONLY) == 0) | |
2573 | this_hdr->sh_flags |= SHF_WRITE; | |
2574 | if ((asect->flags & SEC_CODE) != 0) | |
2575 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
2576 | if ((asect->flags & SEC_MERGE) != 0) |
2577 | { | |
2578 | this_hdr->sh_flags |= SHF_MERGE; | |
2579 | this_hdr->sh_entsize = asect->entsize; | |
2580 | if ((asect->flags & SEC_STRINGS) != 0) | |
2581 | this_hdr->sh_flags |= SHF_STRINGS; | |
2582 | } | |
1126897b | 2583 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 2584 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 2585 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
2586 | { |
2587 | this_hdr->sh_flags |= SHF_TLS; | |
eea6121a | 2588 | if (asect->size == 0 && (asect->flags & SEC_HAS_CONTENTS) == 0) |
704afa60 JJ |
2589 | { |
2590 | struct bfd_link_order *o; | |
b34976b6 | 2591 | |
704afa60 JJ |
2592 | this_hdr->sh_size = 0; |
2593 | for (o = asect->link_order_head; o != NULL; o = o->next) | |
2594 | if (this_hdr->sh_size < o->offset + o->size) | |
2595 | this_hdr->sh_size = o->offset + o->size; | |
2596 | if (this_hdr->sh_size) | |
2597 | this_hdr->sh_type = SHT_NOBITS; | |
2598 | } | |
2599 | } | |
252b5132 RH |
2600 | |
2601 | /* Check for processor-specific section types. */ | |
e1fddb6b AO |
2602 | if (bed->elf_backend_fake_sections |
2603 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
b34976b6 | 2604 | *failedptr = TRUE; |
252b5132 RH |
2605 | |
2606 | /* If the section has relocs, set up a section header for the | |
23bc299b MM |
2607 | SHT_REL[A] section. If two relocation sections are required for |
2608 | this section, it is up to the processor-specific back-end to | |
c044fabd | 2609 | create the other. */ |
23bc299b | 2610 | if ((asect->flags & SEC_RELOC) != 0 |
c044fabd | 2611 | && !_bfd_elf_init_reloc_shdr (abfd, |
23bc299b | 2612 | &elf_section_data (asect)->rel_hdr, |
c044fabd | 2613 | asect, |
68bfbfcc | 2614 | asect->use_rela_p)) |
b34976b6 | 2615 | *failedptr = TRUE; |
252b5132 RH |
2616 | } |
2617 | ||
dbb410c3 AM |
2618 | /* Fill in the contents of a SHT_GROUP section. */ |
2619 | ||
1126897b | 2620 | void |
217aa764 | 2621 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 2622 | { |
217aa764 | 2623 | bfd_boolean *failedptr = failedptrarg; |
dbb410c3 | 2624 | unsigned long symindx; |
9dce4196 | 2625 | asection *elt, *first; |
dbb410c3 AM |
2626 | unsigned char *loc; |
2627 | struct bfd_link_order *l; | |
b34976b6 | 2628 | bfd_boolean gas; |
dbb410c3 AM |
2629 | |
2630 | if (elf_section_data (sec)->this_hdr.sh_type != SHT_GROUP | |
2631 | || *failedptr) | |
2632 | return; | |
2633 | ||
1126897b AM |
2634 | symindx = 0; |
2635 | if (elf_group_id (sec) != NULL) | |
2636 | symindx = elf_group_id (sec)->udata.i; | |
2637 | ||
2638 | if (symindx == 0) | |
2639 | { | |
2640 | /* If called from the assembler, swap_out_syms will have set up | |
2641 | elf_section_syms; If called for "ld -r", use target_index. */ | |
2642 | if (elf_section_syms (abfd) != NULL) | |
2643 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
2644 | else | |
2645 | symindx = sec->target_index; | |
2646 | } | |
dbb410c3 AM |
2647 | elf_section_data (sec)->this_hdr.sh_info = symindx; |
2648 | ||
1126897b | 2649 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 2650 | gas = TRUE; |
dbb410c3 AM |
2651 | if (sec->contents == NULL) |
2652 | { | |
b34976b6 | 2653 | gas = FALSE; |
eea6121a | 2654 | sec->contents = bfd_alloc (abfd, sec->size); |
9dce4196 AM |
2655 | |
2656 | /* Arrange for the section to be written out. */ | |
2657 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
2658 | if (sec->contents == NULL) |
2659 | { | |
b34976b6 | 2660 | *failedptr = TRUE; |
dbb410c3 AM |
2661 | return; |
2662 | } | |
2663 | } | |
2664 | ||
eea6121a | 2665 | loc = sec->contents + sec->size; |
dbb410c3 | 2666 | |
9dce4196 AM |
2667 | /* Get the pointer to the first section in the group that gas |
2668 | squirreled away here. objcopy arranges for this to be set to the | |
2669 | start of the input section group. */ | |
2670 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
2671 | |
2672 | /* First element is a flag word. Rest of section is elf section | |
2673 | indices for all the sections of the group. Write them backwards | |
2674 | just to keep the group in the same order as given in .section | |
2675 | directives, not that it matters. */ | |
2676 | while (elt != NULL) | |
2677 | { | |
9dce4196 AM |
2678 | asection *s; |
2679 | unsigned int idx; | |
2680 | ||
dbb410c3 | 2681 | loc -= 4; |
9dce4196 AM |
2682 | s = elt; |
2683 | if (!gas) | |
2684 | s = s->output_section; | |
2685 | idx = 0; | |
2686 | if (s != NULL) | |
2687 | idx = elf_section_data (s)->this_idx; | |
2688 | H_PUT_32 (abfd, idx, loc); | |
945906ff | 2689 | elt = elf_next_in_group (elt); |
9dce4196 AM |
2690 | if (elt == first) |
2691 | break; | |
dbb410c3 AM |
2692 | } |
2693 | ||
2694 | /* If this is a relocatable link, then the above did nothing because | |
2695 | SEC is the output section. Look through the input sections | |
2696 | instead. */ | |
2697 | for (l = sec->link_order_head; l != NULL; l = l->next) | |
2698 | if (l->type == bfd_indirect_link_order | |
945906ff | 2699 | && (elt = elf_next_in_group (l->u.indirect.section)) != NULL) |
dbb410c3 AM |
2700 | do |
2701 | { | |
2702 | loc -= 4; | |
2703 | H_PUT_32 (abfd, | |
2704 | elf_section_data (elt->output_section)->this_idx, loc); | |
945906ff | 2705 | elt = elf_next_in_group (elt); |
dbb410c3 AM |
2706 | /* During a relocatable link, the lists are circular. */ |
2707 | } | |
945906ff | 2708 | while (elt != elf_next_in_group (l->u.indirect.section)); |
dbb410c3 | 2709 | |
3d7f7666 | 2710 | if ((loc -= 4) != sec->contents) |
9dce4196 | 2711 | abort (); |
dbb410c3 | 2712 | |
9dce4196 | 2713 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
2714 | } |
2715 | ||
252b5132 RH |
2716 | /* Assign all ELF section numbers. The dummy first section is handled here |
2717 | too. The link/info pointers for the standard section types are filled | |
2718 | in here too, while we're at it. */ | |
2719 | ||
b34976b6 | 2720 | static bfd_boolean |
217aa764 | 2721 | assign_section_numbers (bfd *abfd) |
252b5132 RH |
2722 | { |
2723 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
2724 | asection *sec; | |
2b0f7ef9 | 2725 | unsigned int section_number, secn; |
252b5132 | 2726 | Elf_Internal_Shdr **i_shdrp; |
dc810e39 | 2727 | bfd_size_type amt; |
47cc2cf5 | 2728 | struct bfd_elf_section_data *d; |
252b5132 RH |
2729 | |
2730 | section_number = 1; | |
2731 | ||
2b0f7ef9 JJ |
2732 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
2733 | ||
47cc2cf5 | 2734 | /* Put SHT_GROUP sections first. */ |
252b5132 RH |
2735 | for (sec = abfd->sections; sec; sec = sec->next) |
2736 | { | |
47cc2cf5 | 2737 | d = elf_section_data (sec); |
252b5132 | 2738 | |
47cc2cf5 PB |
2739 | if (d->this_hdr.sh_type == SHT_GROUP) |
2740 | { | |
2741 | if (section_number == SHN_LORESERVE) | |
2742 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2743 | d->this_idx = section_number++; | |
2744 | } | |
2745 | } | |
2746 | ||
2747 | for (sec = abfd->sections; sec; sec = sec->next) | |
2748 | { | |
2749 | d = elf_section_data (sec); | |
2750 | ||
2751 | if (d->this_hdr.sh_type != SHT_GROUP) | |
2752 | { | |
2753 | if (section_number == SHN_LORESERVE) | |
2754 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2755 | d->this_idx = section_number++; | |
2756 | } | |
2b0f7ef9 | 2757 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); |
252b5132 RH |
2758 | if ((sec->flags & SEC_RELOC) == 0) |
2759 | d->rel_idx = 0; | |
2760 | else | |
2b0f7ef9 | 2761 | { |
9ad5cbcf AM |
2762 | if (section_number == SHN_LORESERVE) |
2763 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2b0f7ef9 JJ |
2764 | d->rel_idx = section_number++; |
2765 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr.sh_name); | |
2766 | } | |
23bc299b MM |
2767 | |
2768 | if (d->rel_hdr2) | |
2b0f7ef9 | 2769 | { |
9ad5cbcf AM |
2770 | if (section_number == SHN_LORESERVE) |
2771 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2b0f7ef9 JJ |
2772 | d->rel_idx2 = section_number++; |
2773 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr2->sh_name); | |
2774 | } | |
23bc299b MM |
2775 | else |
2776 | d->rel_idx2 = 0; | |
252b5132 RH |
2777 | } |
2778 | ||
9ad5cbcf AM |
2779 | if (section_number == SHN_LORESERVE) |
2780 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2781 | t->shstrtab_section = section_number++; |
2b0f7ef9 | 2782 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
252b5132 | 2783 | elf_elfheader (abfd)->e_shstrndx = t->shstrtab_section; |
252b5132 RH |
2784 | |
2785 | if (bfd_get_symcount (abfd) > 0) | |
2786 | { | |
9ad5cbcf AM |
2787 | if (section_number == SHN_LORESERVE) |
2788 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2789 | t->symtab_section = section_number++; |
2b0f7ef9 | 2790 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
9ad5cbcf AM |
2791 | if (section_number > SHN_LORESERVE - 2) |
2792 | { | |
2793 | if (section_number == SHN_LORESERVE) | |
2794 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2795 | t->symtab_shndx_section = section_number++; | |
2796 | t->symtab_shndx_hdr.sh_name | |
2797 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
b34976b6 | 2798 | ".symtab_shndx", FALSE); |
9ad5cbcf | 2799 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 2800 | return FALSE; |
9ad5cbcf AM |
2801 | } |
2802 | if (section_number == SHN_LORESERVE) | |
2803 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2804 | t->strtab_section = section_number++; |
2b0f7ef9 | 2805 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
2806 | } |
2807 | ||
2b0f7ef9 JJ |
2808 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); |
2809 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
9ad5cbcf AM |
2810 | |
2811 | elf_numsections (abfd) = section_number; | |
252b5132 | 2812 | elf_elfheader (abfd)->e_shnum = section_number; |
9ad5cbcf AM |
2813 | if (section_number > SHN_LORESERVE) |
2814 | elf_elfheader (abfd)->e_shnum -= SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 RH |
2815 | |
2816 | /* Set up the list of section header pointers, in agreement with the | |
2817 | indices. */ | |
dc810e39 | 2818 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
217aa764 | 2819 | i_shdrp = bfd_zalloc (abfd, amt); |
252b5132 | 2820 | if (i_shdrp == NULL) |
b34976b6 | 2821 | return FALSE; |
252b5132 | 2822 | |
dc810e39 | 2823 | amt = sizeof (Elf_Internal_Shdr); |
217aa764 | 2824 | i_shdrp[0] = bfd_zalloc (abfd, amt); |
252b5132 RH |
2825 | if (i_shdrp[0] == NULL) |
2826 | { | |
2827 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 2828 | return FALSE; |
252b5132 | 2829 | } |
252b5132 RH |
2830 | |
2831 | elf_elfsections (abfd) = i_shdrp; | |
2832 | ||
2833 | i_shdrp[t->shstrtab_section] = &t->shstrtab_hdr; | |
2834 | if (bfd_get_symcount (abfd) > 0) | |
2835 | { | |
2836 | i_shdrp[t->symtab_section] = &t->symtab_hdr; | |
9ad5cbcf AM |
2837 | if (elf_numsections (abfd) > SHN_LORESERVE) |
2838 | { | |
2839 | i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr; | |
2840 | t->symtab_shndx_hdr.sh_link = t->symtab_section; | |
2841 | } | |
252b5132 RH |
2842 | i_shdrp[t->strtab_section] = &t->strtab_hdr; |
2843 | t->symtab_hdr.sh_link = t->strtab_section; | |
2844 | } | |
38ce5b11 | 2845 | |
252b5132 RH |
2846 | for (sec = abfd->sections; sec; sec = sec->next) |
2847 | { | |
2848 | struct bfd_elf_section_data *d = elf_section_data (sec); | |
2849 | asection *s; | |
2850 | const char *name; | |
2851 | ||
2852 | i_shdrp[d->this_idx] = &d->this_hdr; | |
2853 | if (d->rel_idx != 0) | |
2854 | i_shdrp[d->rel_idx] = &d->rel_hdr; | |
23bc299b MM |
2855 | if (d->rel_idx2 != 0) |
2856 | i_shdrp[d->rel_idx2] = d->rel_hdr2; | |
252b5132 RH |
2857 | |
2858 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
2859 | ||
2860 | /* sh_link of a reloc section is the section index of the symbol | |
2861 | table. sh_info is the section index of the section to which | |
2862 | the relocation entries apply. */ | |
2863 | if (d->rel_idx != 0) | |
2864 | { | |
2865 | d->rel_hdr.sh_link = t->symtab_section; | |
2866 | d->rel_hdr.sh_info = d->this_idx; | |
2867 | } | |
23bc299b MM |
2868 | if (d->rel_idx2 != 0) |
2869 | { | |
2870 | d->rel_hdr2->sh_link = t->symtab_section; | |
2871 | d->rel_hdr2->sh_info = d->this_idx; | |
2872 | } | |
252b5132 | 2873 | |
38ce5b11 L |
2874 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
2875 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
2876 | { | |
2877 | s = elf_linked_to_section (sec); | |
2878 | if (s) | |
2879 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2880 | else | |
2881 | { | |
2882 | struct bfd_link_order *p; | |
2883 | ||
2884 | /* Find out what the corresponding section in output | |
2885 | is. */ | |
2886 | for (p = sec->link_order_head; p != NULL; p = p->next) | |
2887 | { | |
2888 | s = p->u.indirect.section; | |
2889 | if (p->type == bfd_indirect_link_order | |
2890 | && (bfd_get_flavour (s->owner) | |
2891 | == bfd_target_elf_flavour)) | |
2892 | { | |
2893 | Elf_Internal_Shdr ** const elf_shdrp | |
2894 | = elf_elfsections (s->owner); | |
2895 | int elfsec | |
2896 | = _bfd_elf_section_from_bfd_section (s->owner, s); | |
2897 | elfsec = elf_shdrp[elfsec]->sh_link; | |
185d09ad L |
2898 | /* PR 290: |
2899 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
2900 | SHF_LINK_ORDER. But it doesn't set theh sh_link or | |
2901 | sh_info fields. Hence we could get the situation | |
2902 | where elfsec is 0. */ | |
2903 | if (elfsec == 0) | |
2904 | { | |
2905 | const struct elf_backend_data *bed | |
2906 | = get_elf_backend_data (abfd); | |
2907 | if (bed->link_order_error_handler) | |
d003868e AM |
2908 | bed->link_order_error_handler |
2909 | (_("%B: warning: sh_link not set for section `%S'"), | |
2910 | abfd, s); | |
185d09ad L |
2911 | } |
2912 | else | |
2913 | { | |
2914 | s = elf_shdrp[elfsec]->bfd_section->output_section; | |
2915 | BFD_ASSERT (s != NULL); | |
2916 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2917 | } | |
38ce5b11 L |
2918 | break; |
2919 | } | |
2920 | } | |
2921 | } | |
2922 | } | |
2923 | ||
252b5132 RH |
2924 | switch (d->this_hdr.sh_type) |
2925 | { | |
2926 | case SHT_REL: | |
2927 | case SHT_RELA: | |
2928 | /* A reloc section which we are treating as a normal BFD | |
2929 | section. sh_link is the section index of the symbol | |
2930 | table. sh_info is the section index of the section to | |
2931 | which the relocation entries apply. We assume that an | |
2932 | allocated reloc section uses the dynamic symbol table. | |
2933 | FIXME: How can we be sure? */ | |
2934 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
2935 | if (s != NULL) | |
2936 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2937 | ||
2938 | /* We look up the section the relocs apply to by name. */ | |
2939 | name = sec->name; | |
2940 | if (d->this_hdr.sh_type == SHT_REL) | |
2941 | name += 4; | |
2942 | else | |
2943 | name += 5; | |
2944 | s = bfd_get_section_by_name (abfd, name); | |
2945 | if (s != NULL) | |
2946 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
2947 | break; | |
2948 | ||
2949 | case SHT_STRTAB: | |
2950 | /* We assume that a section named .stab*str is a stabs | |
2951 | string section. We look for a section with the same name | |
2952 | but without the trailing ``str'', and set its sh_link | |
2953 | field to point to this section. */ | |
2954 | if (strncmp (sec->name, ".stab", sizeof ".stab" - 1) == 0 | |
2955 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) | |
2956 | { | |
2957 | size_t len; | |
2958 | char *alc; | |
2959 | ||
2960 | len = strlen (sec->name); | |
217aa764 | 2961 | alc = bfd_malloc (len - 2); |
252b5132 | 2962 | if (alc == NULL) |
b34976b6 | 2963 | return FALSE; |
d4c88bbb | 2964 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
2965 | alc[len - 3] = '\0'; |
2966 | s = bfd_get_section_by_name (abfd, alc); | |
2967 | free (alc); | |
2968 | if (s != NULL) | |
2969 | { | |
2970 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
2971 | ||
2972 | /* This is a .stab section. */ | |
0594c12d AM |
2973 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
2974 | elf_section_data (s)->this_hdr.sh_entsize | |
2975 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
2976 | } |
2977 | } | |
2978 | break; | |
2979 | ||
2980 | case SHT_DYNAMIC: | |
2981 | case SHT_DYNSYM: | |
2982 | case SHT_GNU_verneed: | |
2983 | case SHT_GNU_verdef: | |
2984 | /* sh_link is the section header index of the string table | |
2985 | used for the dynamic entries, or the symbol table, or the | |
2986 | version strings. */ | |
2987 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
2988 | if (s != NULL) | |
2989 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2990 | break; | |
2991 | ||
7f1204bb JJ |
2992 | case SHT_GNU_LIBLIST: |
2993 | /* sh_link is the section header index of the prelink library | |
2994 | list | |
2995 | used for the dynamic entries, or the symbol table, or the | |
2996 | version strings. */ | |
2997 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) | |
2998 | ? ".dynstr" : ".gnu.libstr"); | |
2999 | if (s != NULL) | |
3000 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3001 | break; | |
3002 | ||
252b5132 RH |
3003 | case SHT_HASH: |
3004 | case SHT_GNU_versym: | |
3005 | /* sh_link is the section header index of the symbol table | |
3006 | this hash table or version table is for. */ | |
3007 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3008 | if (s != NULL) | |
3009 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3010 | break; | |
dbb410c3 AM |
3011 | |
3012 | case SHT_GROUP: | |
3013 | d->this_hdr.sh_link = t->symtab_section; | |
252b5132 RH |
3014 | } |
3015 | } | |
3016 | ||
2b0f7ef9 | 3017 | for (secn = 1; secn < section_number; ++secn) |
9ad5cbcf AM |
3018 | if (i_shdrp[secn] == NULL) |
3019 | i_shdrp[secn] = i_shdrp[0]; | |
3020 | else | |
3021 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
3022 | i_shdrp[secn]->sh_name); | |
b34976b6 | 3023 | return TRUE; |
252b5132 RH |
3024 | } |
3025 | ||
3026 | /* Map symbol from it's internal number to the external number, moving | |
3027 | all local symbols to be at the head of the list. */ | |
3028 | ||
268b6b39 | 3029 | static int |
217aa764 | 3030 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3031 | { |
3032 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 3033 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
3034 | if (bed->elf_backend_sym_is_global) |
3035 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 RH |
3036 | |
3037 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
3038 | || bfd_is_und_section (bfd_get_section (sym)) | |
3039 | || bfd_is_com_section (bfd_get_section (sym))); | |
3040 | } | |
3041 | ||
b34976b6 | 3042 | static bfd_boolean |
217aa764 | 3043 | elf_map_symbols (bfd *abfd) |
252b5132 | 3044 | { |
dc810e39 | 3045 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
3046 | asymbol **syms = bfd_get_outsymbols (abfd); |
3047 | asymbol **sect_syms; | |
dc810e39 AM |
3048 | unsigned int num_locals = 0; |
3049 | unsigned int num_globals = 0; | |
3050 | unsigned int num_locals2 = 0; | |
3051 | unsigned int num_globals2 = 0; | |
252b5132 | 3052 | int max_index = 0; |
dc810e39 | 3053 | unsigned int idx; |
252b5132 RH |
3054 | asection *asect; |
3055 | asymbol **new_syms; | |
dc810e39 | 3056 | bfd_size_type amt; |
252b5132 RH |
3057 | |
3058 | #ifdef DEBUG | |
3059 | fprintf (stderr, "elf_map_symbols\n"); | |
3060 | fflush (stderr); | |
3061 | #endif | |
3062 | ||
252b5132 RH |
3063 | for (asect = abfd->sections; asect; asect = asect->next) |
3064 | { | |
3065 | if (max_index < asect->index) | |
3066 | max_index = asect->index; | |
3067 | } | |
3068 | ||
3069 | max_index++; | |
dc810e39 | 3070 | amt = max_index * sizeof (asymbol *); |
217aa764 | 3071 | sect_syms = bfd_zalloc (abfd, amt); |
252b5132 | 3072 | if (sect_syms == NULL) |
b34976b6 | 3073 | return FALSE; |
252b5132 | 3074 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 3075 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 3076 | |
079e9a2f AM |
3077 | /* Init sect_syms entries for any section symbols we have already |
3078 | decided to output. */ | |
252b5132 RH |
3079 | for (idx = 0; idx < symcount; idx++) |
3080 | { | |
dc810e39 | 3081 | asymbol *sym = syms[idx]; |
c044fabd | 3082 | |
252b5132 RH |
3083 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
3084 | && sym->value == 0) | |
3085 | { | |
3086 | asection *sec; | |
3087 | ||
3088 | sec = sym->section; | |
3089 | ||
3090 | if (sec->owner != NULL) | |
3091 | { | |
3092 | if (sec->owner != abfd) | |
3093 | { | |
3094 | if (sec->output_offset != 0) | |
3095 | continue; | |
c044fabd | 3096 | |
252b5132 RH |
3097 | sec = sec->output_section; |
3098 | ||
079e9a2f AM |
3099 | /* Empty sections in the input files may have had a |
3100 | section symbol created for them. (See the comment | |
3101 | near the end of _bfd_generic_link_output_symbols in | |
3102 | linker.c). If the linker script discards such | |
3103 | sections then we will reach this point. Since we know | |
3104 | that we cannot avoid this case, we detect it and skip | |
3105 | the abort and the assignment to the sect_syms array. | |
3106 | To reproduce this particular case try running the | |
3107 | linker testsuite test ld-scripts/weak.exp for an ELF | |
3108 | port that uses the generic linker. */ | |
252b5132 RH |
3109 | if (sec->owner == NULL) |
3110 | continue; | |
3111 | ||
3112 | BFD_ASSERT (sec->owner == abfd); | |
3113 | } | |
3114 | sect_syms[sec->index] = syms[idx]; | |
3115 | } | |
3116 | } | |
3117 | } | |
3118 | ||
252b5132 RH |
3119 | /* Classify all of the symbols. */ |
3120 | for (idx = 0; idx < symcount; idx++) | |
3121 | { | |
3122 | if (!sym_is_global (abfd, syms[idx])) | |
3123 | num_locals++; | |
3124 | else | |
3125 | num_globals++; | |
3126 | } | |
079e9a2f AM |
3127 | |
3128 | /* We will be adding a section symbol for each BFD section. Most normal | |
3129 | sections will already have a section symbol in outsymbols, but | |
3130 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
3131 | at least in that case. */ | |
252b5132 RH |
3132 | for (asect = abfd->sections; asect; asect = asect->next) |
3133 | { | |
079e9a2f | 3134 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3135 | { |
079e9a2f | 3136 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
3137 | num_locals++; |
3138 | else | |
3139 | num_globals++; | |
252b5132 RH |
3140 | } |
3141 | } | |
3142 | ||
3143 | /* Now sort the symbols so the local symbols are first. */ | |
dc810e39 | 3144 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
217aa764 | 3145 | new_syms = bfd_alloc (abfd, amt); |
dc810e39 | 3146 | |
252b5132 | 3147 | if (new_syms == NULL) |
b34976b6 | 3148 | return FALSE; |
252b5132 RH |
3149 | |
3150 | for (idx = 0; idx < symcount; idx++) | |
3151 | { | |
3152 | asymbol *sym = syms[idx]; | |
dc810e39 | 3153 | unsigned int i; |
252b5132 RH |
3154 | |
3155 | if (!sym_is_global (abfd, sym)) | |
3156 | i = num_locals2++; | |
3157 | else | |
3158 | i = num_locals + num_globals2++; | |
3159 | new_syms[i] = sym; | |
3160 | sym->udata.i = i + 1; | |
3161 | } | |
3162 | for (asect = abfd->sections; asect; asect = asect->next) | |
3163 | { | |
079e9a2f | 3164 | if (sect_syms[asect->index] == NULL) |
252b5132 | 3165 | { |
079e9a2f | 3166 | asymbol *sym = asect->symbol; |
dc810e39 | 3167 | unsigned int i; |
252b5132 | 3168 | |
079e9a2f | 3169 | sect_syms[asect->index] = sym; |
252b5132 RH |
3170 | if (!sym_is_global (abfd, sym)) |
3171 | i = num_locals2++; | |
3172 | else | |
3173 | i = num_locals + num_globals2++; | |
3174 | new_syms[i] = sym; | |
3175 | sym->udata.i = i + 1; | |
3176 | } | |
3177 | } | |
3178 | ||
3179 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
3180 | ||
3181 | elf_num_locals (abfd) = num_locals; | |
3182 | elf_num_globals (abfd) = num_globals; | |
b34976b6 | 3183 | return TRUE; |
252b5132 RH |
3184 | } |
3185 | ||
3186 | /* Align to the maximum file alignment that could be required for any | |
3187 | ELF data structure. */ | |
3188 | ||
268b6b39 | 3189 | static inline file_ptr |
217aa764 | 3190 | align_file_position (file_ptr off, int align) |
252b5132 RH |
3191 | { |
3192 | return (off + align - 1) & ~(align - 1); | |
3193 | } | |
3194 | ||
3195 | /* Assign a file position to a section, optionally aligning to the | |
3196 | required section alignment. */ | |
3197 | ||
217aa764 AM |
3198 | file_ptr |
3199 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
3200 | file_ptr offset, | |
3201 | bfd_boolean align) | |
252b5132 RH |
3202 | { |
3203 | if (align) | |
3204 | { | |
3205 | unsigned int al; | |
3206 | ||
3207 | al = i_shdrp->sh_addralign; | |
3208 | if (al > 1) | |
3209 | offset = BFD_ALIGN (offset, al); | |
3210 | } | |
3211 | i_shdrp->sh_offset = offset; | |
3212 | if (i_shdrp->bfd_section != NULL) | |
3213 | i_shdrp->bfd_section->filepos = offset; | |
3214 | if (i_shdrp->sh_type != SHT_NOBITS) | |
3215 | offset += i_shdrp->sh_size; | |
3216 | return offset; | |
3217 | } | |
3218 | ||
3219 | /* Compute the file positions we are going to put the sections at, and | |
3220 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
3221 | is not NULL, this is being called by the ELF backend linker. */ | |
3222 | ||
b34976b6 | 3223 | bfd_boolean |
217aa764 AM |
3224 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
3225 | struct bfd_link_info *link_info) | |
252b5132 | 3226 | { |
9c5bfbb7 | 3227 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
b34976b6 | 3228 | bfd_boolean failed; |
252b5132 RH |
3229 | struct bfd_strtab_hash *strtab; |
3230 | Elf_Internal_Shdr *shstrtab_hdr; | |
3231 | ||
3232 | if (abfd->output_has_begun) | |
b34976b6 | 3233 | return TRUE; |
252b5132 RH |
3234 | |
3235 | /* Do any elf backend specific processing first. */ | |
3236 | if (bed->elf_backend_begin_write_processing) | |
3237 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
3238 | ||
3239 | if (! prep_headers (abfd)) | |
b34976b6 | 3240 | return FALSE; |
252b5132 | 3241 | |
e6c51ed4 NC |
3242 | /* Post process the headers if necessary. */ |
3243 | if (bed->elf_backend_post_process_headers) | |
3244 | (*bed->elf_backend_post_process_headers) (abfd, link_info); | |
3245 | ||
b34976b6 | 3246 | failed = FALSE; |
252b5132 RH |
3247 | bfd_map_over_sections (abfd, elf_fake_sections, &failed); |
3248 | if (failed) | |
b34976b6 | 3249 | return FALSE; |
252b5132 RH |
3250 | |
3251 | if (!assign_section_numbers (abfd)) | |
b34976b6 | 3252 | return FALSE; |
252b5132 RH |
3253 | |
3254 | /* The backend linker builds symbol table information itself. */ | |
3255 | if (link_info == NULL && bfd_get_symcount (abfd) > 0) | |
3256 | { | |
3257 | /* Non-zero if doing a relocatable link. */ | |
3258 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
3259 | ||
3260 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 3261 | return FALSE; |
252b5132 RH |
3262 | } |
3263 | ||
1126897b | 3264 | if (link_info == NULL) |
dbb410c3 | 3265 | { |
1126897b | 3266 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 3267 | if (failed) |
b34976b6 | 3268 | return FALSE; |
dbb410c3 AM |
3269 | } |
3270 | ||
252b5132 RH |
3271 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
3272 | /* sh_name was set in prep_headers. */ | |
3273 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
3274 | shstrtab_hdr->sh_flags = 0; | |
3275 | shstrtab_hdr->sh_addr = 0; | |
2b0f7ef9 | 3276 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); |
252b5132 RH |
3277 | shstrtab_hdr->sh_entsize = 0; |
3278 | shstrtab_hdr->sh_link = 0; | |
3279 | shstrtab_hdr->sh_info = 0; | |
3280 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |
3281 | shstrtab_hdr->sh_addralign = 1; | |
3282 | ||
c84fca4d | 3283 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 3284 | return FALSE; |
252b5132 RH |
3285 | |
3286 | if (link_info == NULL && bfd_get_symcount (abfd) > 0) | |
3287 | { | |
3288 | file_ptr off; | |
3289 | Elf_Internal_Shdr *hdr; | |
3290 | ||
3291 | off = elf_tdata (abfd)->next_file_pos; | |
3292 | ||
3293 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
b34976b6 | 3294 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 3295 | |
9ad5cbcf AM |
3296 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
3297 | if (hdr->sh_size != 0) | |
b34976b6 | 3298 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf | 3299 | |
252b5132 | 3300 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 3301 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 RH |
3302 | |
3303 | elf_tdata (abfd)->next_file_pos = off; | |
3304 | ||
3305 | /* Now that we know where the .strtab section goes, write it | |
3306 | out. */ | |
3307 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
3308 | || ! _bfd_stringtab_emit (abfd, strtab)) | |
b34976b6 | 3309 | return FALSE; |
252b5132 RH |
3310 | _bfd_stringtab_free (strtab); |
3311 | } | |
3312 | ||
b34976b6 | 3313 | abfd->output_has_begun = TRUE; |
252b5132 | 3314 | |
b34976b6 | 3315 | return TRUE; |
252b5132 RH |
3316 | } |
3317 | ||
3318 | /* Create a mapping from a set of sections to a program segment. */ | |
3319 | ||
217aa764 AM |
3320 | static struct elf_segment_map * |
3321 | make_mapping (bfd *abfd, | |
3322 | asection **sections, | |
3323 | unsigned int from, | |
3324 | unsigned int to, | |
3325 | bfd_boolean phdr) | |
252b5132 RH |
3326 | { |
3327 | struct elf_segment_map *m; | |
3328 | unsigned int i; | |
3329 | asection **hdrpp; | |
dc810e39 | 3330 | bfd_size_type amt; |
252b5132 | 3331 | |
dc810e39 AM |
3332 | amt = sizeof (struct elf_segment_map); |
3333 | amt += (to - from - 1) * sizeof (asection *); | |
217aa764 | 3334 | m = bfd_zalloc (abfd, amt); |
252b5132 RH |
3335 | if (m == NULL) |
3336 | return NULL; | |
3337 | m->next = NULL; | |
3338 | m->p_type = PT_LOAD; | |
3339 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
3340 | m->sections[i - from] = *hdrpp; | |
3341 | m->count = to - from; | |
3342 | ||
3343 | if (from == 0 && phdr) | |
3344 | { | |
3345 | /* Include the headers in the first PT_LOAD segment. */ | |
3346 | m->includes_filehdr = 1; | |
3347 | m->includes_phdrs = 1; | |
3348 | } | |
3349 | ||
3350 | return m; | |
3351 | } | |
3352 | ||
229fcec5 MM |
3353 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
3354 | on failure. */ | |
3355 | ||
3356 | struct elf_segment_map * | |
3357 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
3358 | { | |
3359 | struct elf_segment_map *m; | |
3360 | ||
3361 | m = bfd_zalloc (abfd, sizeof (struct elf_segment_map)); | |
3362 | if (m == NULL) | |
3363 | return NULL; | |
3364 | m->next = NULL; | |
3365 | m->p_type = PT_DYNAMIC; | |
3366 | m->count = 1; | |
3367 | m->sections[0] = dynsec; | |
3368 | ||
3369 | return m; | |
3370 | } | |
3371 | ||
252b5132 RH |
3372 | /* Set up a mapping from BFD sections to program segments. */ |
3373 | ||
b34976b6 | 3374 | static bfd_boolean |
217aa764 | 3375 | map_sections_to_segments (bfd *abfd) |
252b5132 RH |
3376 | { |
3377 | asection **sections = NULL; | |
3378 | asection *s; | |
3379 | unsigned int i; | |
3380 | unsigned int count; | |
3381 | struct elf_segment_map *mfirst; | |
3382 | struct elf_segment_map **pm; | |
3383 | struct elf_segment_map *m; | |
3384 | asection *last_hdr; | |
baaff79e | 3385 | bfd_vma last_size; |
252b5132 RH |
3386 | unsigned int phdr_index; |
3387 | bfd_vma maxpagesize; | |
3388 | asection **hdrpp; | |
b34976b6 AM |
3389 | bfd_boolean phdr_in_segment = TRUE; |
3390 | bfd_boolean writable; | |
13ae64f3 JJ |
3391 | int tls_count = 0; |
3392 | asection *first_tls = NULL; | |
65765700 | 3393 | asection *dynsec, *eh_frame_hdr; |
dc810e39 | 3394 | bfd_size_type amt; |
252b5132 RH |
3395 | |
3396 | if (elf_tdata (abfd)->segment_map != NULL) | |
b34976b6 | 3397 | return TRUE; |
252b5132 RH |
3398 | |
3399 | if (bfd_count_sections (abfd) == 0) | |
b34976b6 | 3400 | return TRUE; |
252b5132 RH |
3401 | |
3402 | /* Select the allocated sections, and sort them. */ | |
3403 | ||
dc810e39 | 3404 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
217aa764 | 3405 | sections = bfd_malloc (amt); |
252b5132 RH |
3406 | if (sections == NULL) |
3407 | goto error_return; | |
3408 | ||
3409 | i = 0; | |
3410 | for (s = abfd->sections; s != NULL; s = s->next) | |
3411 | { | |
3412 | if ((s->flags & SEC_ALLOC) != 0) | |
3413 | { | |
3414 | sections[i] = s; | |
3415 | ++i; | |
3416 | } | |
3417 | } | |
3418 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
3419 | count = i; | |
3420 | ||
3421 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); | |
3422 | ||
3423 | /* Build the mapping. */ | |
3424 | ||
3425 | mfirst = NULL; | |
3426 | pm = &mfirst; | |
3427 | ||
3428 | /* If we have a .interp section, then create a PT_PHDR segment for | |
3429 | the program headers and a PT_INTERP segment for the .interp | |
3430 | section. */ | |
3431 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3432 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3433 | { | |
dc810e39 | 3434 | amt = sizeof (struct elf_segment_map); |
217aa764 | 3435 | m = bfd_zalloc (abfd, amt); |
252b5132 RH |
3436 | if (m == NULL) |
3437 | goto error_return; | |
3438 | m->next = NULL; | |
3439 | m->p_type = PT_PHDR; | |
3440 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
3441 | m->p_flags = PF_R | PF_X; | |
3442 | m->p_flags_valid = 1; | |
3443 | m->includes_phdrs = 1; | |
3444 | ||
3445 | *pm = m; | |
3446 | pm = &m->next; | |
3447 | ||
dc810e39 | 3448 | amt = sizeof (struct elf_segment_map); |
217aa764 | 3449 | m = bfd_zalloc (abfd, amt); |
252b5132 RH |
3450 | if (m == NULL) |
3451 | goto error_return; | |
3452 | m->next = NULL; | |
3453 | m->p_type = PT_INTERP; | |
3454 | m->count = 1; | |
3455 | m->sections[0] = s; | |
3456 | ||
3457 | *pm = m; | |
3458 | pm = &m->next; | |
3459 | } | |
3460 | ||
3461 | /* Look through the sections. We put sections in the same program | |
3462 | segment when the start of the second section can be placed within | |
3463 | a few bytes of the end of the first section. */ | |
3464 | last_hdr = NULL; | |
baaff79e | 3465 | last_size = 0; |
252b5132 RH |
3466 | phdr_index = 0; |
3467 | maxpagesize = get_elf_backend_data (abfd)->maxpagesize; | |
b34976b6 | 3468 | writable = FALSE; |
252b5132 RH |
3469 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
3470 | if (dynsec != NULL | |
3471 | && (dynsec->flags & SEC_LOAD) == 0) | |
3472 | dynsec = NULL; | |
3473 | ||
3474 | /* Deal with -Ttext or something similar such that the first section | |
3475 | is not adjacent to the program headers. This is an | |
3476 | approximation, since at this point we don't know exactly how many | |
3477 | program headers we will need. */ | |
3478 | if (count > 0) | |
3479 | { | |
3480 | bfd_size_type phdr_size; | |
3481 | ||
3482 | phdr_size = elf_tdata (abfd)->program_header_size; | |
3483 | if (phdr_size == 0) | |
3484 | phdr_size = get_elf_backend_data (abfd)->s->sizeof_phdr; | |
3485 | if ((abfd->flags & D_PAGED) == 0 | |
3486 | || sections[0]->lma < phdr_size | |
3487 | || sections[0]->lma % maxpagesize < phdr_size % maxpagesize) | |
b34976b6 | 3488 | phdr_in_segment = FALSE; |
252b5132 RH |
3489 | } |
3490 | ||
3491 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) | |
3492 | { | |
3493 | asection *hdr; | |
b34976b6 | 3494 | bfd_boolean new_segment; |
252b5132 RH |
3495 | |
3496 | hdr = *hdrpp; | |
3497 | ||
3498 | /* See if this section and the last one will fit in the same | |
3499 | segment. */ | |
3500 | ||
3501 | if (last_hdr == NULL) | |
3502 | { | |
3503 | /* If we don't have a segment yet, then we don't need a new | |
3504 | one (we build the last one after this loop). */ | |
b34976b6 | 3505 | new_segment = FALSE; |
252b5132 RH |
3506 | } |
3507 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
3508 | { | |
3509 | /* If this section has a different relation between the | |
3510 | virtual address and the load address, then we need a new | |
3511 | segment. */ | |
b34976b6 | 3512 | new_segment = TRUE; |
252b5132 | 3513 | } |
baaff79e | 3514 | else if (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
252b5132 RH |
3515 | < BFD_ALIGN (hdr->lma, maxpagesize)) |
3516 | { | |
3517 | /* If putting this section in this segment would force us to | |
3518 | skip a page in the segment, then we need a new segment. */ | |
b34976b6 | 3519 | new_segment = TRUE; |
252b5132 | 3520 | } |
baaff79e JJ |
3521 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 |
3522 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) | |
252b5132 RH |
3523 | { |
3524 | /* We don't want to put a loadable section after a | |
baaff79e JJ |
3525 | nonloadable section in the same segment. |
3526 | Consider .tbss sections as loadable for this purpose. */ | |
b34976b6 | 3527 | new_segment = TRUE; |
252b5132 RH |
3528 | } |
3529 | else if ((abfd->flags & D_PAGED) == 0) | |
3530 | { | |
3531 | /* If the file is not demand paged, which means that we | |
3532 | don't require the sections to be correctly aligned in the | |
3533 | file, then there is no other reason for a new segment. */ | |
b34976b6 | 3534 | new_segment = FALSE; |
252b5132 RH |
3535 | } |
3536 | else if (! writable | |
3537 | && (hdr->flags & SEC_READONLY) == 0 | |
baaff79e | 3538 | && (((last_hdr->lma + last_size - 1) |
b89fe0ee AM |
3539 | & ~(maxpagesize - 1)) |
3540 | != (hdr->lma & ~(maxpagesize - 1)))) | |
252b5132 RH |
3541 | { |
3542 | /* We don't want to put a writable section in a read only | |
3543 | segment, unless they are on the same page in memory | |
3544 | anyhow. We already know that the last section does not | |
3545 | bring us past the current section on the page, so the | |
3546 | only case in which the new section is not on the same | |
3547 | page as the previous section is when the previous section | |
3548 | ends precisely on a page boundary. */ | |
b34976b6 | 3549 | new_segment = TRUE; |
252b5132 RH |
3550 | } |
3551 | else | |
3552 | { | |
3553 | /* Otherwise, we can use the same segment. */ | |
b34976b6 | 3554 | new_segment = FALSE; |
252b5132 RH |
3555 | } |
3556 | ||
3557 | if (! new_segment) | |
3558 | { | |
3559 | if ((hdr->flags & SEC_READONLY) == 0) | |
b34976b6 | 3560 | writable = TRUE; |
baaff79e JJ |
3561 | last_hdr = hdr; |
3562 | /* .tbss sections effectively have zero size. */ | |
e5caec89 | 3563 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) |
eea6121a | 3564 | last_size = hdr->size; |
baaff79e JJ |
3565 | else |
3566 | last_size = 0; | |
252b5132 RH |
3567 | continue; |
3568 | } | |
3569 | ||
3570 | /* We need a new program segment. We must create a new program | |
3571 | header holding all the sections from phdr_index until hdr. */ | |
3572 | ||
3573 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
3574 | if (m == NULL) | |
3575 | goto error_return; | |
3576 | ||
3577 | *pm = m; | |
3578 | pm = &m->next; | |
3579 | ||
3580 | if ((hdr->flags & SEC_READONLY) == 0) | |
b34976b6 | 3581 | writable = TRUE; |
252b5132 | 3582 | else |
b34976b6 | 3583 | writable = FALSE; |
252b5132 RH |
3584 | |
3585 | last_hdr = hdr; | |
baaff79e JJ |
3586 | /* .tbss sections effectively have zero size. */ |
3587 | if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL) | |
eea6121a | 3588 | last_size = hdr->size; |
baaff79e JJ |
3589 | else |
3590 | last_size = 0; | |
252b5132 | 3591 | phdr_index = i; |
b34976b6 | 3592 | phdr_in_segment = FALSE; |
252b5132 RH |
3593 | } |
3594 | ||
3595 | /* Create a final PT_LOAD program segment. */ | |
3596 | if (last_hdr != NULL) | |
3597 | { | |
3598 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
3599 | if (m == NULL) | |
3600 | goto error_return; | |
3601 | ||
3602 | *pm = m; | |
3603 | pm = &m->next; | |
3604 | } | |
3605 | ||
3606 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ | |
3607 | if (dynsec != NULL) | |
3608 | { | |
229fcec5 | 3609 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); |
252b5132 RH |
3610 | if (m == NULL) |
3611 | goto error_return; | |
252b5132 RH |
3612 | *pm = m; |
3613 | pm = &m->next; | |
3614 | } | |
3615 | ||
3616 | /* For each loadable .note section, add a PT_NOTE segment. We don't | |
3617 | use bfd_get_section_by_name, because if we link together | |
3618 | nonloadable .note sections and loadable .note sections, we will | |
3619 | generate two .note sections in the output file. FIXME: Using | |
3620 | names for section types is bogus anyhow. */ | |
3621 | for (s = abfd->sections; s != NULL; s = s->next) | |
3622 | { | |
3623 | if ((s->flags & SEC_LOAD) != 0 | |
3624 | && strncmp (s->name, ".note", 5) == 0) | |
3625 | { | |
dc810e39 | 3626 | amt = sizeof (struct elf_segment_map); |
217aa764 | 3627 | m = bfd_zalloc (abfd, amt); |
252b5132 RH |
3628 | if (m == NULL) |
3629 | goto error_return; | |
3630 | m->next = NULL; | |
3631 | m->p_type = PT_NOTE; | |
3632 | m->count = 1; | |
3633 | m->sections[0] = s; | |
3634 | ||
3635 | *pm = m; | |
3636 | pm = &m->next; | |
3637 | } | |
13ae64f3 JJ |
3638 | if (s->flags & SEC_THREAD_LOCAL) |
3639 | { | |
3640 | if (! tls_count) | |
3641 | first_tls = s; | |
3642 | tls_count++; | |
3643 | } | |
3644 | } | |
3645 | ||
3646 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ | |
3647 | if (tls_count > 0) | |
3648 | { | |
3649 | int i; | |
3650 | ||
3651 | amt = sizeof (struct elf_segment_map); | |
3652 | amt += (tls_count - 1) * sizeof (asection *); | |
217aa764 | 3653 | m = bfd_zalloc (abfd, amt); |
13ae64f3 JJ |
3654 | if (m == NULL) |
3655 | goto error_return; | |
3656 | m->next = NULL; | |
3657 | m->p_type = PT_TLS; | |
3658 | m->count = tls_count; | |
3659 | /* Mandated PF_R. */ | |
3660 | m->p_flags = PF_R; | |
3661 | m->p_flags_valid = 1; | |
3662 | for (i = 0; i < tls_count; ++i) | |
3663 | { | |
3664 | BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL); | |
3665 | m->sections[i] = first_tls; | |
3666 | first_tls = first_tls->next; | |
3667 | } | |
3668 | ||
3669 | *pm = m; | |
3670 | pm = &m->next; | |
252b5132 RH |
3671 | } |
3672 | ||
65765700 JJ |
3673 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
3674 | segment. */ | |
126495ed AM |
3675 | eh_frame_hdr = elf_tdata (abfd)->eh_frame_hdr; |
3676 | if (eh_frame_hdr != NULL | |
3677 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
65765700 JJ |
3678 | { |
3679 | amt = sizeof (struct elf_segment_map); | |
217aa764 | 3680 | m = bfd_zalloc (abfd, amt); |
65765700 JJ |
3681 | if (m == NULL) |
3682 | goto error_return; | |
3683 | m->next = NULL; | |
3684 | m->p_type = PT_GNU_EH_FRAME; | |
3685 | m->count = 1; | |
126495ed | 3686 | m->sections[0] = eh_frame_hdr->output_section; |
65765700 JJ |
3687 | |
3688 | *pm = m; | |
3689 | pm = &m->next; | |
3690 | } | |
3691 | ||
9ee5e499 JJ |
3692 | if (elf_tdata (abfd)->stack_flags) |
3693 | { | |
3694 | amt = sizeof (struct elf_segment_map); | |
217aa764 | 3695 | m = bfd_zalloc (abfd, amt); |
9ee5e499 JJ |
3696 | if (m == NULL) |
3697 | goto error_return; | |
3698 | m->next = NULL; | |
3699 | m->p_type = PT_GNU_STACK; | |
3700 | m->p_flags = elf_tdata (abfd)->stack_flags; | |
3701 | m->p_flags_valid = 1; | |
3702 | ||
3703 | *pm = m; | |
3704 | pm = &m->next; | |
3705 | } | |
3706 | ||
8c37241b JJ |
3707 | if (elf_tdata (abfd)->relro) |
3708 | { | |
3709 | amt = sizeof (struct elf_segment_map); | |
3710 | m = bfd_zalloc (abfd, amt); | |
3711 | if (m == NULL) | |
3712 | goto error_return; | |
3713 | m->next = NULL; | |
3714 | m->p_type = PT_GNU_RELRO; | |
3715 | m->p_flags = PF_R; | |
3716 | m->p_flags_valid = 1; | |
3717 | ||
3718 | *pm = m; | |
3719 | pm = &m->next; | |
3720 | } | |
3721 | ||
252b5132 RH |
3722 | free (sections); |
3723 | sections = NULL; | |
3724 | ||
3725 | elf_tdata (abfd)->segment_map = mfirst; | |
b34976b6 | 3726 | return TRUE; |
252b5132 RH |
3727 | |
3728 | error_return: | |
3729 | if (sections != NULL) | |
3730 | free (sections); | |
b34976b6 | 3731 | return FALSE; |
252b5132 RH |
3732 | } |
3733 | ||
3734 | /* Sort sections by address. */ | |
3735 | ||
3736 | static int | |
217aa764 | 3737 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
3738 | { |
3739 | const asection *sec1 = *(const asection **) arg1; | |
3740 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 3741 | bfd_size_type size1, size2; |
252b5132 RH |
3742 | |
3743 | /* Sort by LMA first, since this is the address used to | |
3744 | place the section into a segment. */ | |
3745 | if (sec1->lma < sec2->lma) | |
3746 | return -1; | |
3747 | else if (sec1->lma > sec2->lma) | |
3748 | return 1; | |
3749 | ||
3750 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
3751 | the same, and this will do nothing. */ | |
3752 | if (sec1->vma < sec2->vma) | |
3753 | return -1; | |
3754 | else if (sec1->vma > sec2->vma) | |
3755 | return 1; | |
3756 | ||
3757 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
3758 | ||
07c6e936 | 3759 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
3760 | |
3761 | if (TOEND (sec1)) | |
3762 | { | |
3763 | if (TOEND (sec2)) | |
00a7cdc5 NC |
3764 | { |
3765 | /* If the indicies are the same, do not return 0 | |
3766 | here, but continue to try the next comparison. */ | |
3767 | if (sec1->target_index - sec2->target_index != 0) | |
3768 | return sec1->target_index - sec2->target_index; | |
3769 | } | |
252b5132 RH |
3770 | else |
3771 | return 1; | |
3772 | } | |
00a7cdc5 | 3773 | else if (TOEND (sec2)) |
252b5132 RH |
3774 | return -1; |
3775 | ||
3776 | #undef TOEND | |
3777 | ||
00a7cdc5 NC |
3778 | /* Sort by size, to put zero sized sections |
3779 | before others at the same address. */ | |
252b5132 | 3780 | |
eea6121a AM |
3781 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
3782 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
3783 | |
3784 | if (size1 < size2) | |
252b5132 | 3785 | return -1; |
eecdbe52 | 3786 | if (size1 > size2) |
252b5132 RH |
3787 | return 1; |
3788 | ||
3789 | return sec1->target_index - sec2->target_index; | |
3790 | } | |
3791 | ||
340b6d91 AC |
3792 | /* Ian Lance Taylor writes: |
3793 | ||
3794 | We shouldn't be using % with a negative signed number. That's just | |
3795 | not good. We have to make sure either that the number is not | |
3796 | negative, or that the number has an unsigned type. When the types | |
3797 | are all the same size they wind up as unsigned. When file_ptr is a | |
3798 | larger signed type, the arithmetic winds up as signed long long, | |
3799 | which is wrong. | |
3800 | ||
3801 | What we're trying to say here is something like ``increase OFF by | |
3802 | the least amount that will cause it to be equal to the VMA modulo | |
3803 | the page size.'' */ | |
3804 | /* In other words, something like: | |
3805 | ||
3806 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
3807 | off_offset = off % bed->maxpagesize; | |
3808 | if (vma_offset < off_offset) | |
3809 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
3810 | else | |
3811 | adjustment = vma_offset - off_offset; | |
3812 | ||
3813 | which can can be collapsed into the expression below. */ | |
3814 | ||
3815 | static file_ptr | |
3816 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
3817 | { | |
3818 | return ((vma - off) % maxpagesize); | |
3819 | } | |
3820 | ||
252b5132 RH |
3821 | /* Assign file positions to the sections based on the mapping from |
3822 | sections to segments. This function also sets up some fields in | |
3823 | the file header, and writes out the program headers. */ | |
3824 | ||
b34976b6 | 3825 | static bfd_boolean |
c84fca4d | 3826 | assign_file_positions_for_segments (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3827 | { |
3828 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3829 | unsigned int count; | |
3830 | struct elf_segment_map *m; | |
3831 | unsigned int alloc; | |
3832 | Elf_Internal_Phdr *phdrs; | |
3833 | file_ptr off, voff; | |
3834 | bfd_vma filehdr_vaddr, filehdr_paddr; | |
3835 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
3836 | Elf_Internal_Phdr *p; | |
dc810e39 | 3837 | bfd_size_type amt; |
252b5132 RH |
3838 | |
3839 | if (elf_tdata (abfd)->segment_map == NULL) | |
3840 | { | |
3841 | if (! map_sections_to_segments (abfd)) | |
b34976b6 | 3842 | return FALSE; |
252b5132 | 3843 | } |
1ed89aa9 NC |
3844 | else |
3845 | { | |
3846 | /* The placement algorithm assumes that non allocated sections are | |
3847 | not in PT_LOAD segments. We ensure this here by removing such | |
3848 | sections from the segment map. */ | |
3849 | for (m = elf_tdata (abfd)->segment_map; | |
3850 | m != NULL; | |
3851 | m = m->next) | |
3852 | { | |
3853 | unsigned int new_count; | |
3854 | unsigned int i; | |
3855 | ||
3856 | if (m->p_type != PT_LOAD) | |
3857 | continue; | |
3858 | ||
3859 | new_count = 0; | |
3860 | for (i = 0; i < m->count; i ++) | |
3861 | { | |
3862 | if ((m->sections[i]->flags & SEC_ALLOC) != 0) | |
3863 | { | |
47d9a591 | 3864 | if (i != new_count) |
1ed89aa9 NC |
3865 | m->sections[new_count] = m->sections[i]; |
3866 | ||
3867 | new_count ++; | |
3868 | } | |
3869 | } | |
3870 | ||
3871 | if (new_count != m->count) | |
3872 | m->count = new_count; | |
3873 | } | |
3874 | } | |
252b5132 RH |
3875 | |
3876 | if (bed->elf_backend_modify_segment_map) | |
3877 | { | |
c84fca4d | 3878 | if (! (*bed->elf_backend_modify_segment_map) (abfd, link_info)) |
b34976b6 | 3879 | return FALSE; |
252b5132 RH |
3880 | } |
3881 | ||
3882 | count = 0; | |
3883 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
3884 | ++count; | |
3885 | ||
3886 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
3887 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
3888 | elf_elfheader (abfd)->e_phnum = count; | |
3889 | ||
3890 | if (count == 0) | |
0ebdbb83 BW |
3891 | { |
3892 | elf_tdata (abfd)->next_file_pos = bed->s->sizeof_ehdr; | |
3893 | return TRUE; | |
3894 | } | |
252b5132 RH |
3895 | |
3896 | /* If we already counted the number of program segments, make sure | |
3897 | that we allocated enough space. This happens when SIZEOF_HEADERS | |
3898 | is used in a linker script. */ | |
3899 | alloc = elf_tdata (abfd)->program_header_size / bed->s->sizeof_phdr; | |
3900 | if (alloc != 0 && count > alloc) | |
3901 | { | |
3902 | ((*_bfd_error_handler) | |
b301b248 AM |
3903 | (_("%B: Not enough room for program headers (allocated %u, need %u)"), |
3904 | abfd, alloc, count)); | |
252b5132 | 3905 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3906 | return FALSE; |
252b5132 RH |
3907 | } |
3908 | ||
3909 | if (alloc == 0) | |
3910 | alloc = count; | |
3911 | ||
dc810e39 | 3912 | amt = alloc * sizeof (Elf_Internal_Phdr); |
217aa764 | 3913 | phdrs = bfd_alloc (abfd, amt); |
252b5132 | 3914 | if (phdrs == NULL) |
b34976b6 | 3915 | return FALSE; |
252b5132 RH |
3916 | |
3917 | off = bed->s->sizeof_ehdr; | |
3918 | off += alloc * bed->s->sizeof_phdr; | |
3919 | ||
3920 | filehdr_vaddr = 0; | |
3921 | filehdr_paddr = 0; | |
3922 | phdrs_vaddr = 0; | |
3923 | phdrs_paddr = 0; | |
3924 | ||
3925 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; | |
3926 | m != NULL; | |
3927 | m = m->next, p++) | |
3928 | { | |
3929 | unsigned int i; | |
3930 | asection **secpp; | |
3931 | ||
3932 | /* If elf_segment_map is not from map_sections_to_segments, the | |
47d9a591 | 3933 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
3934 | not be done to the PT_NOTE section of a corefile, which may |
3935 | contain several pseudo-sections artificially created by bfd. | |
3936 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
3937 | if (m->count > 1 |
3938 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 3939 | && m->p_type == PT_NOTE)) |
252b5132 RH |
3940 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
3941 | elf_sort_sections); | |
3942 | ||
b301b248 AM |
3943 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
3944 | number of sections with contents contributing to both p_filesz | |
3945 | and p_memsz, followed by a number of sections with no contents | |
3946 | that just contribute to p_memsz. In this loop, OFF tracks next | |
3947 | available file offset for PT_LOAD and PT_NOTE segments. VOFF is | |
3948 | an adjustment we use for segments that have no file contents | |
3949 | but need zero filled memory allocation. */ | |
3950 | voff = 0; | |
252b5132 | 3951 | p->p_type = m->p_type; |
28a7f3e7 | 3952 | p->p_flags = m->p_flags; |
252b5132 RH |
3953 | |
3954 | if (p->p_type == PT_LOAD | |
b301b248 | 3955 | && m->count > 0) |
252b5132 | 3956 | { |
b301b248 AM |
3957 | bfd_size_type align; |
3958 | bfd_vma adjust; | |
3959 | ||
252b5132 | 3960 | if ((abfd->flags & D_PAGED) != 0) |
b301b248 | 3961 | align = bed->maxpagesize; |
252b5132 RH |
3962 | else |
3963 | { | |
b301b248 | 3964 | unsigned int align_power = 0; |
252b5132 RH |
3965 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
3966 | { | |
b301b248 | 3967 | unsigned int secalign; |
252b5132 RH |
3968 | |
3969 | secalign = bfd_get_section_alignment (abfd, *secpp); | |
b301b248 AM |
3970 | if (secalign > align_power) |
3971 | align_power = secalign; | |
252b5132 | 3972 | } |
b301b248 AM |
3973 | align = (bfd_size_type) 1 << align_power; |
3974 | } | |
252b5132 | 3975 | |
b301b248 AM |
3976 | adjust = vma_page_aligned_bias (m->sections[0]->vma, off, align); |
3977 | off += adjust; | |
3978 | if (adjust != 0 | |
3979 | && !m->includes_filehdr | |
3980 | && !m->includes_phdrs | |
3981 | && (ufile_ptr) off >= align) | |
3982 | { | |
3983 | /* If the first section isn't loadable, the same holds for | |
3984 | any other sections. Since the segment won't need file | |
3985 | space, we can make p_offset overlap some prior segment. | |
3986 | However, .tbss is special. If a segment starts with | |
3987 | .tbss, we need to look at the next section to decide | |
3988 | whether the segment has any loadable sections. */ | |
3989 | i = 0; | |
5efb6261 | 3990 | while ((m->sections[i]->flags & SEC_LOAD) == 0) |
b301b248 AM |
3991 | { |
3992 | if ((m->sections[i]->flags & SEC_THREAD_LOCAL) == 0 | |
3993 | || ++i >= m->count) | |
3994 | { | |
3995 | off -= adjust; | |
3996 | voff = adjust - align; | |
3997 | break; | |
3998 | } | |
3999 | } | |
252b5132 RH |
4000 | } |
4001 | } | |
b1a6d0b1 NC |
4002 | /* Make sure the .dynamic section is the first section in the |
4003 | PT_DYNAMIC segment. */ | |
4004 | else if (p->p_type == PT_DYNAMIC | |
4005 | && m->count > 1 | |
4006 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
4007 | { | |
4008 | _bfd_error_handler | |
b301b248 AM |
4009 | (_("%B: The first section in the PT_DYNAMIC segment is not the .dynamic section"), |
4010 | abfd); | |
b1a6d0b1 NC |
4011 | bfd_set_error (bfd_error_bad_value); |
4012 | return FALSE; | |
4013 | } | |
252b5132 RH |
4014 | |
4015 | if (m->count == 0) | |
4016 | p->p_vaddr = 0; | |
4017 | else | |
4018 | p->p_vaddr = m->sections[0]->vma; | |
4019 | ||
4020 | if (m->p_paddr_valid) | |
4021 | p->p_paddr = m->p_paddr; | |
4022 | else if (m->count == 0) | |
4023 | p->p_paddr = 0; | |
4024 | else | |
4025 | p->p_paddr = m->sections[0]->lma; | |
4026 | ||
4027 | if (p->p_type == PT_LOAD | |
4028 | && (abfd->flags & D_PAGED) != 0) | |
4029 | p->p_align = bed->maxpagesize; | |
4030 | else if (m->count == 0) | |
45d6a902 | 4031 | p->p_align = 1 << bed->s->log_file_align; |
252b5132 RH |
4032 | else |
4033 | p->p_align = 0; | |
4034 | ||
4035 | p->p_offset = 0; | |
4036 | p->p_filesz = 0; | |
4037 | p->p_memsz = 0; | |
4038 | ||
4039 | if (m->includes_filehdr) | |
4040 | { | |
4041 | if (! m->p_flags_valid) | |
4042 | p->p_flags |= PF_R; | |
4043 | p->p_offset = 0; | |
4044 | p->p_filesz = bed->s->sizeof_ehdr; | |
4045 | p->p_memsz = bed->s->sizeof_ehdr; | |
4046 | if (m->count > 0) | |
4047 | { | |
4048 | BFD_ASSERT (p->p_type == PT_LOAD); | |
4049 | ||
4050 | if (p->p_vaddr < (bfd_vma) off) | |
4051 | { | |
caf47ea6 | 4052 | (*_bfd_error_handler) |
b301b248 AM |
4053 | (_("%B: Not enough room for program headers, try linking with -N"), |
4054 | abfd); | |
252b5132 | 4055 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4056 | return FALSE; |
252b5132 RH |
4057 | } |
4058 | ||
4059 | p->p_vaddr -= off; | |
4060 | if (! m->p_paddr_valid) | |
4061 | p->p_paddr -= off; | |
4062 | } | |
4063 | if (p->p_type == PT_LOAD) | |
4064 | { | |
4065 | filehdr_vaddr = p->p_vaddr; | |
4066 | filehdr_paddr = p->p_paddr; | |
4067 | } | |
4068 | } | |
4069 | ||
4070 | if (m->includes_phdrs) | |
4071 | { | |
4072 | if (! m->p_flags_valid) | |
4073 | p->p_flags |= PF_R; | |
4074 | ||
4075 | if (m->includes_filehdr) | |
4076 | { | |
4077 | if (p->p_type == PT_LOAD) | |
4078 | { | |
4079 | phdrs_vaddr = p->p_vaddr + bed->s->sizeof_ehdr; | |
4080 | phdrs_paddr = p->p_paddr + bed->s->sizeof_ehdr; | |
4081 | } | |
4082 | } | |
4083 | else | |
4084 | { | |
4085 | p->p_offset = bed->s->sizeof_ehdr; | |
4086 | ||
4087 | if (m->count > 0) | |
4088 | { | |
4089 | BFD_ASSERT (p->p_type == PT_LOAD); | |
4090 | p->p_vaddr -= off - p->p_offset; | |
4091 | if (! m->p_paddr_valid) | |
4092 | p->p_paddr -= off - p->p_offset; | |
4093 | } | |
4094 | ||
4095 | if (p->p_type == PT_LOAD) | |
4096 | { | |
4097 | phdrs_vaddr = p->p_vaddr; | |
4098 | phdrs_paddr = p->p_paddr; | |
4099 | } | |
4100 | else | |
4101 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
4102 | } | |
4103 | ||
4104 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
4105 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
4106 | } | |
4107 | ||
4108 | if (p->p_type == PT_LOAD | |
4109 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
4110 | { | |
4111 | if (! m->includes_filehdr && ! m->includes_phdrs) | |
b301b248 | 4112 | p->p_offset = off + voff; |
252b5132 RH |
4113 | else |
4114 | { | |
4115 | file_ptr adjust; | |
4116 | ||
4117 | adjust = off - (p->p_offset + p->p_filesz); | |
4118 | p->p_filesz += adjust; | |
4119 | p->p_memsz += adjust; | |
4120 | } | |
4121 | } | |
4122 | ||
252b5132 RH |
4123 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
4124 | { | |
4125 | asection *sec; | |
4126 | flagword flags; | |
4127 | bfd_size_type align; | |
4128 | ||
4129 | sec = *secpp; | |
4130 | flags = sec->flags; | |
4131 | align = 1 << bfd_get_section_alignment (abfd, sec); | |
4132 | ||
b301b248 AM |
4133 | if (p->p_type == PT_LOAD |
4134 | || p->p_type == PT_TLS) | |
252b5132 RH |
4135 | { |
4136 | bfd_signed_vma adjust; | |
4137 | ||
5efb6261 | 4138 | if ((flags & SEC_LOAD) != 0) |
252b5132 | 4139 | { |
b301b248 | 4140 | adjust = sec->lma - (p->p_paddr + p->p_filesz); |
252b5132 | 4141 | if (adjust < 0) |
b301b248 AM |
4142 | { |
4143 | (*_bfd_error_handler) | |
4144 | (_("%B: section %A lma 0x%lx overlaps previous sections"), | |
4145 | abfd, sec, (unsigned long) sec->lma); | |
4146 | adjust = 0; | |
4147 | } | |
4148 | off += adjust; | |
4149 | p->p_filesz += adjust; | |
4150 | p->p_memsz += adjust; | |
252b5132 | 4151 | } |
b301b248 AM |
4152 | /* .tbss is special. It doesn't contribute to p_memsz of |
4153 | normal segments. */ | |
4154 | else if ((flags & SEC_THREAD_LOCAL) == 0 | |
4155 | || p->p_type == PT_TLS) | |
252b5132 RH |
4156 | { |
4157 | /* The section VMA must equal the file position | |
b301b248 AM |
4158 | modulo the page size. */ |
4159 | bfd_size_type page = align; | |
252b5132 | 4160 | if ((abfd->flags & D_PAGED) != 0) |
b301b248 AM |
4161 | page = bed->maxpagesize; |
4162 | adjust = vma_page_aligned_bias (sec->vma, | |
4163 | p->p_vaddr + p->p_memsz, | |
4164 | page); | |
252b5132 | 4165 | p->p_memsz += adjust; |
252b5132 | 4166 | } |
252b5132 RH |
4167 | } |
4168 | ||
4169 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
4170 | { | |
b301b248 AM |
4171 | /* The section at i == 0 is the one that actually contains |
4172 | everything. */ | |
4a938328 MS |
4173 | if (i == 0) |
4174 | { | |
252b5132 | 4175 | sec->filepos = off; |
eea6121a | 4176 | off += sec->size; |
b301b248 AM |
4177 | p->p_filesz = sec->size; |
4178 | p->p_memsz = 0; | |
4179 | p->p_align = 1; | |
252b5132 | 4180 | } |
4a938328 | 4181 | else |
252b5132 | 4182 | { |
b301b248 | 4183 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 4184 | sec->filepos = 0; |
eea6121a | 4185 | sec->size = 0; |
b301b248 AM |
4186 | sec->flags = 0; |
4187 | continue; | |
252b5132 | 4188 | } |
252b5132 RH |
4189 | } |
4190 | else | |
4191 | { | |
b301b248 AM |
4192 | if (p->p_type == PT_LOAD) |
4193 | { | |
4194 | sec->filepos = off; | |
5efb6261 AM |
4195 | /* FIXME: The SEC_HAS_CONTENTS test here dates back to |
4196 | 1997, and the exact reason for it isn't clear. One | |
4197 | plausible explanation is that it is to work around | |
4198 | a problem we have with linker scripts using data | |
4199 | statements in NOLOAD sections. I don't think it | |
4200 | makes a great deal of sense to have such a section | |
4201 | assigned to a PT_LOAD segment, but apparently | |
4202 | people do this. The data statement results in a | |
4203 | bfd_data_link_order being built, and these need | |
4204 | section contents to write into. Eventually, we get | |
4205 | to _bfd_elf_write_object_contents which writes any | |
4206 | section with contents to the output. Make room | |
4207 | here for the write, so that following segments are | |
4208 | not trashed. */ | |
4209 | if ((flags & SEC_LOAD) != 0 | |
4210 | || (flags & SEC_HAS_CONTENTS) != 0) | |
b301b248 AM |
4211 | off += sec->size; |
4212 | } | |
252b5132 | 4213 | |
5efb6261 | 4214 | if ((flags & SEC_LOAD) != 0) |
b301b248 AM |
4215 | { |
4216 | p->p_filesz += sec->size; | |
4217 | p->p_memsz += sec->size; | |
4218 | } | |
4219 | /* .tbss is special. It doesn't contribute to p_memsz of | |
4220 | normal segments. */ | |
4221 | else if ((flags & SEC_THREAD_LOCAL) == 0 | |
4222 | || p->p_type == PT_TLS) | |
4223 | p->p_memsz += sec->size; | |
252b5132 | 4224 | |
13ae64f3 | 4225 | if (p->p_type == PT_TLS |
eea6121a | 4226 | && sec->size == 0 |
13ae64f3 JJ |
4227 | && (sec->flags & SEC_HAS_CONTENTS) == 0) |
4228 | { | |
4229 | struct bfd_link_order *o; | |
4230 | bfd_vma tbss_size = 0; | |
4231 | ||
4232 | for (o = sec->link_order_head; o != NULL; o = o->next) | |
4233 | if (tbss_size < o->offset + o->size) | |
4234 | tbss_size = o->offset + o->size; | |
4235 | ||
4236 | p->p_memsz += tbss_size; | |
4237 | } | |
4238 | ||
252b5132 RH |
4239 | if (align > p->p_align |
4240 | && (p->p_type != PT_LOAD || (abfd->flags & D_PAGED) == 0)) | |
4241 | p->p_align = align; | |
4242 | } | |
4243 | ||
4244 | if (! m->p_flags_valid) | |
4245 | { | |
4246 | p->p_flags |= PF_R; | |
4247 | if ((flags & SEC_CODE) != 0) | |
4248 | p->p_flags |= PF_X; | |
4249 | if ((flags & SEC_READONLY) == 0) | |
4250 | p->p_flags |= PF_W; | |
4251 | } | |
4252 | } | |
4253 | } | |
4254 | ||
4255 | /* Now that we have set the section file positions, we can set up | |
4256 | the file positions for the non PT_LOAD segments. */ | |
4257 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; | |
4258 | m != NULL; | |
4259 | m = m->next, p++) | |
4260 | { | |
4261 | if (p->p_type != PT_LOAD && m->count > 0) | |
4262 | { | |
4263 | BFD_ASSERT (! m->includes_filehdr && ! m->includes_phdrs); | |
229fcec5 MM |
4264 | /* If the section has not yet been assigned a file position, |
4265 | do so now. The ARM BPABI requires that .dynamic section | |
4266 | not be marked SEC_ALLOC because it is not part of any | |
4267 | PT_LOAD segment, so it will not be processed above. */ | |
4268 | if (p->p_type == PT_DYNAMIC && m->sections[0]->filepos == 0) | |
4269 | { | |
4270 | unsigned int i; | |
4271 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); | |
4272 | ||
4273 | i = 1; | |
4274 | while (i_shdrpp[i]->bfd_section != m->sections[0]) | |
4275 | ++i; | |
4276 | off = (_bfd_elf_assign_file_position_for_section | |
4277 | (i_shdrpp[i], off, TRUE)); | |
4278 | p->p_filesz = m->sections[0]->size; | |
4279 | } | |
252b5132 RH |
4280 | p->p_offset = m->sections[0]->filepos; |
4281 | } | |
4282 | if (m->count == 0) | |
4283 | { | |
4284 | if (m->includes_filehdr) | |
4285 | { | |
4286 | p->p_vaddr = filehdr_vaddr; | |
4287 | if (! m->p_paddr_valid) | |
4288 | p->p_paddr = filehdr_paddr; | |
4289 | } | |
4290 | else if (m->includes_phdrs) | |
4291 | { | |
4292 | p->p_vaddr = phdrs_vaddr; | |
4293 | if (! m->p_paddr_valid) | |
4294 | p->p_paddr = phdrs_paddr; | |
4295 | } | |
8c37241b JJ |
4296 | else if (p->p_type == PT_GNU_RELRO) |
4297 | { | |
4298 | Elf_Internal_Phdr *lp; | |
4299 | ||
4300 | for (lp = phdrs; lp < phdrs + count; ++lp) | |
4301 | { | |
4302 | if (lp->p_type == PT_LOAD | |
4303 | && lp->p_vaddr <= link_info->relro_end | |
4304 | && lp->p_vaddr >= link_info->relro_start | |
4305 | && lp->p_vaddr + lp->p_filesz | |
4306 | >= link_info->relro_end) | |
4307 | break; | |
4308 | } | |
4309 | ||
4310 | if (lp < phdrs + count | |
4311 | && link_info->relro_end > lp->p_vaddr) | |
4312 | { | |
4313 | p->p_vaddr = lp->p_vaddr; | |
4314 | p->p_paddr = lp->p_paddr; | |
4315 | p->p_offset = lp->p_offset; | |
4316 | p->p_filesz = link_info->relro_end - lp->p_vaddr; | |
4317 | p->p_memsz = p->p_filesz; | |
4318 | p->p_align = 1; | |
4319 | p->p_flags = (lp->p_flags & ~PF_W); | |
4320 | } | |
4321 | else | |
4322 | { | |
4323 | memset (p, 0, sizeof *p); | |
4324 | p->p_type = PT_NULL; | |
4325 | } | |
4326 | } | |
252b5132 RH |
4327 | } |
4328 | } | |
4329 | ||
4330 | /* Clear out any program headers we allocated but did not use. */ | |
4331 | for (; count < alloc; count++, p++) | |
4332 | { | |
4333 | memset (p, 0, sizeof *p); | |
4334 | p->p_type = PT_NULL; | |
4335 | } | |
4336 | ||
4337 | elf_tdata (abfd)->phdr = phdrs; | |
4338 | ||
4339 | elf_tdata (abfd)->next_file_pos = off; | |
4340 | ||
4341 | /* Write out the program headers. */ | |
dc810e39 | 4342 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
252b5132 | 4343 | || bed->s->write_out_phdrs (abfd, phdrs, alloc) != 0) |
b34976b6 | 4344 | return FALSE; |
252b5132 | 4345 | |
b34976b6 | 4346 | return TRUE; |
252b5132 RH |
4347 | } |
4348 | ||
4349 | /* Get the size of the program header. | |
4350 | ||
4351 | If this is called by the linker before any of the section VMA's are set, it | |
4352 | can't calculate the correct value for a strange memory layout. This only | |
4353 | happens when SIZEOF_HEADERS is used in a linker script. In this case, | |
4354 | SORTED_HDRS is NULL and we assume the normal scenario of one text and one | |
4355 | data segment (exclusive of .interp and .dynamic). | |
4356 | ||
4357 | ??? User written scripts must either not use SIZEOF_HEADERS, or assume there | |
4358 | will be two segments. */ | |
4359 | ||
4360 | static bfd_size_type | |
217aa764 | 4361 | get_program_header_size (bfd *abfd) |
252b5132 RH |
4362 | { |
4363 | size_t segs; | |
4364 | asection *s; | |
9c5bfbb7 | 4365 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
4366 | |
4367 | /* We can't return a different result each time we're called. */ | |
4368 | if (elf_tdata (abfd)->program_header_size != 0) | |
4369 | return elf_tdata (abfd)->program_header_size; | |
4370 | ||
4371 | if (elf_tdata (abfd)->segment_map != NULL) | |
4372 | { | |
4373 | struct elf_segment_map *m; | |
4374 | ||
4375 | segs = 0; | |
4376 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
4377 | ++segs; | |
4378 | elf_tdata (abfd)->program_header_size = segs * bed->s->sizeof_phdr; | |
4379 | return elf_tdata (abfd)->program_header_size; | |
4380 | } | |
4381 | ||
4382 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4383 | and one for data. */ | |
4384 | segs = 2; | |
4385 | ||
4386 | s = bfd_get_section_by_name (abfd, ".interp"); | |
4387 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
4388 | { | |
4389 | /* If we have a loadable interpreter section, we need a | |
4390 | PT_INTERP segment. In this case, assume we also need a | |
ab3acfbe | 4391 | PT_PHDR segment, although that may not be true for all |
252b5132 RH |
4392 | targets. */ |
4393 | segs += 2; | |
4394 | } | |
4395 | ||
4396 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4397 | { | |
4398 | /* We need a PT_DYNAMIC segment. */ | |
4399 | ++segs; | |
4400 | } | |
4401 | ||
126495ed | 4402 | if (elf_tdata (abfd)->eh_frame_hdr) |
65765700 JJ |
4403 | { |
4404 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4405 | ++segs; | |
4406 | } | |
4407 | ||
9ee5e499 JJ |
4408 | if (elf_tdata (abfd)->stack_flags) |
4409 | { | |
4410 | /* We need a PT_GNU_STACK segment. */ | |
4411 | ++segs; | |
4412 | } | |
4413 | ||
8c37241b JJ |
4414 | if (elf_tdata (abfd)->relro) |
4415 | { | |
4416 | /* We need a PT_GNU_RELRO segment. */ | |
4417 | ++segs; | |
4418 | } | |
4419 | ||
252b5132 RH |
4420 | for (s = abfd->sections; s != NULL; s = s->next) |
4421 | { | |
4422 | if ((s->flags & SEC_LOAD) != 0 | |
4423 | && strncmp (s->name, ".note", 5) == 0) | |
4424 | { | |
4425 | /* We need a PT_NOTE segment. */ | |
4426 | ++segs; | |
4427 | } | |
4428 | } | |
4429 | ||
13ae64f3 JJ |
4430 | for (s = abfd->sections; s != NULL; s = s->next) |
4431 | { | |
4432 | if (s->flags & SEC_THREAD_LOCAL) | |
4433 | { | |
4434 | /* We need a PT_TLS segment. */ | |
4435 | ++segs; | |
4436 | break; | |
4437 | } | |
4438 | } | |
4439 | ||
252b5132 RH |
4440 | /* Let the backend count up any program headers it might need. */ |
4441 | if (bed->elf_backend_additional_program_headers) | |
4442 | { | |
4443 | int a; | |
4444 | ||
4445 | a = (*bed->elf_backend_additional_program_headers) (abfd); | |
4446 | if (a == -1) | |
4447 | abort (); | |
4448 | segs += a; | |
4449 | } | |
4450 | ||
4451 | elf_tdata (abfd)->program_header_size = segs * bed->s->sizeof_phdr; | |
4452 | return elf_tdata (abfd)->program_header_size; | |
4453 | } | |
4454 | ||
4455 | /* Work out the file positions of all the sections. This is called by | |
4456 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
4457 | VMAs must be known before this is called. | |
4458 | ||
e0638f70 AM |
4459 | Reloc sections come in two flavours: Those processed specially as |
4460 | "side-channel" data attached to a section to which they apply, and | |
4461 | those that bfd doesn't process as relocations. The latter sort are | |
4462 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
4463 | consider the former sort here, unless they form part of the loadable | |
4464 | image. Reloc sections not assigned here will be handled later by | |
4465 | assign_file_positions_for_relocs. | |
252b5132 RH |
4466 | |
4467 | We also don't set the positions of the .symtab and .strtab here. */ | |
4468 | ||
b34976b6 | 4469 | static bfd_boolean |
c84fca4d AO |
4470 | assign_file_positions_except_relocs (bfd *abfd, |
4471 | struct bfd_link_info *link_info) | |
252b5132 RH |
4472 | { |
4473 | struct elf_obj_tdata * const tdata = elf_tdata (abfd); | |
4474 | Elf_Internal_Ehdr * const i_ehdrp = elf_elfheader (abfd); | |
4475 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); | |
9ad5cbcf | 4476 | unsigned int num_sec = elf_numsections (abfd); |
252b5132 | 4477 | file_ptr off; |
9c5bfbb7 | 4478 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
4479 | |
4480 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
4481 | && bfd_get_format (abfd) != bfd_core) | |
4482 | { | |
4483 | Elf_Internal_Shdr **hdrpp; | |
4484 | unsigned int i; | |
4485 | ||
4486 | /* Start after the ELF header. */ | |
4487 | off = i_ehdrp->e_ehsize; | |
4488 | ||
4489 | /* We are not creating an executable, which means that we are | |
4490 | not creating a program header, and that the actual order of | |
4491 | the sections in the file is unimportant. */ | |
9ad5cbcf | 4492 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
4493 | { |
4494 | Elf_Internal_Shdr *hdr; | |
4495 | ||
4496 | hdr = *hdrpp; | |
e0638f70 AM |
4497 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
4498 | && hdr->bfd_section == NULL) | |
9ad5cbcf AM |
4499 | || i == tdata->symtab_section |
4500 | || i == tdata->symtab_shndx_section | |
252b5132 RH |
4501 | || i == tdata->strtab_section) |
4502 | { | |
4503 | hdr->sh_offset = -1; | |
252b5132 | 4504 | } |
9ad5cbcf | 4505 | else |
b34976b6 | 4506 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4507 | |
9ad5cbcf AM |
4508 | if (i == SHN_LORESERVE - 1) |
4509 | { | |
4510 | i += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
4511 | hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
4512 | } | |
252b5132 RH |
4513 | } |
4514 | } | |
4515 | else | |
4516 | { | |
4517 | unsigned int i; | |
4518 | Elf_Internal_Shdr **hdrpp; | |
4519 | ||
4520 | /* Assign file positions for the loaded sections based on the | |
4521 | assignment of sections to segments. */ | |
c84fca4d | 4522 | if (! assign_file_positions_for_segments (abfd, link_info)) |
b34976b6 | 4523 | return FALSE; |
252b5132 RH |
4524 | |
4525 | /* Assign file positions for the other sections. */ | |
4526 | ||
4527 | off = elf_tdata (abfd)->next_file_pos; | |
9ad5cbcf | 4528 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
4529 | { |
4530 | Elf_Internal_Shdr *hdr; | |
4531 | ||
4532 | hdr = *hdrpp; | |
4533 | if (hdr->bfd_section != NULL | |
4534 | && hdr->bfd_section->filepos != 0) | |
4535 | hdr->sh_offset = hdr->bfd_section->filepos; | |
4536 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
4537 | { | |
4538 | ((*_bfd_error_handler) | |
b301b248 AM |
4539 | (_("%B: warning: allocated section `%s' not in segment"), |
4540 | abfd, | |
252b5132 RH |
4541 | (hdr->bfd_section == NULL |
4542 | ? "*unknown*" | |
4543 | : hdr->bfd_section->name))); | |
4544 | if ((abfd->flags & D_PAGED) != 0) | |
340b6d91 AC |
4545 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
4546 | bed->maxpagesize); | |
252b5132 | 4547 | else |
340b6d91 AC |
4548 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
4549 | hdr->sh_addralign); | |
252b5132 | 4550 | off = _bfd_elf_assign_file_position_for_section (hdr, off, |
b34976b6 | 4551 | FALSE); |
252b5132 | 4552 | } |
e0638f70 AM |
4553 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
4554 | && hdr->bfd_section == NULL) | |
252b5132 | 4555 | || hdr == i_shdrpp[tdata->symtab_section] |
9ad5cbcf | 4556 | || hdr == i_shdrpp[tdata->symtab_shndx_section] |
252b5132 RH |
4557 | || hdr == i_shdrpp[tdata->strtab_section]) |
4558 | hdr->sh_offset = -1; | |
4559 | else | |
b34976b6 | 4560 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
9ad5cbcf AM |
4561 | |
4562 | if (i == SHN_LORESERVE - 1) | |
4563 | { | |
4564 | i += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
4565 | hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
4566 | } | |
252b5132 RH |
4567 | } |
4568 | } | |
4569 | ||
4570 | /* Place the section headers. */ | |
45d6a902 | 4571 | off = align_file_position (off, 1 << bed->s->log_file_align); |
252b5132 RH |
4572 | i_ehdrp->e_shoff = off; |
4573 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
4574 | ||
4575 | elf_tdata (abfd)->next_file_pos = off; | |
4576 | ||
b34976b6 | 4577 | return TRUE; |
252b5132 RH |
4578 | } |
4579 | ||
b34976b6 | 4580 | static bfd_boolean |
217aa764 | 4581 | prep_headers (bfd *abfd) |
252b5132 RH |
4582 | { |
4583 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |
4584 | Elf_Internal_Phdr *i_phdrp = 0; /* Program header table, internal form */ | |
4585 | Elf_Internal_Shdr **i_shdrp; /* Section header table, internal form */ | |
2b0f7ef9 | 4586 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 4587 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
4588 | |
4589 | i_ehdrp = elf_elfheader (abfd); | |
4590 | i_shdrp = elf_elfsections (abfd); | |
4591 | ||
2b0f7ef9 | 4592 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 4593 | if (shstrtab == NULL) |
b34976b6 | 4594 | return FALSE; |
252b5132 RH |
4595 | |
4596 | elf_shstrtab (abfd) = shstrtab; | |
4597 | ||
4598 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
4599 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
4600 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
4601 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
4602 | ||
4603 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
4604 | i_ehdrp->e_ident[EI_DATA] = | |
4605 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
4606 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
4607 | ||
252b5132 RH |
4608 | if ((abfd->flags & DYNAMIC) != 0) |
4609 | i_ehdrp->e_type = ET_DYN; | |
4610 | else if ((abfd->flags & EXEC_P) != 0) | |
4611 | i_ehdrp->e_type = ET_EXEC; | |
4612 | else if (bfd_get_format (abfd) == bfd_core) | |
4613 | i_ehdrp->e_type = ET_CORE; | |
4614 | else | |
4615 | i_ehdrp->e_type = ET_REL; | |
4616 | ||
4617 | switch (bfd_get_arch (abfd)) | |
4618 | { | |
4619 | case bfd_arch_unknown: | |
4620 | i_ehdrp->e_machine = EM_NONE; | |
4621 | break; | |
aa4f99bb AO |
4622 | |
4623 | /* There used to be a long list of cases here, each one setting | |
4624 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
4625 | in the corresponding bfd definition. To avoid duplication, | |
4626 | the switch was removed. Machines that need special handling | |
4627 | can generally do it in elf_backend_final_write_processing(), | |
4628 | unless they need the information earlier than the final write. | |
4629 | Such need can generally be supplied by replacing the tests for | |
4630 | e_machine with the conditions used to determine it. */ | |
252b5132 | 4631 | default: |
9c5bfbb7 AM |
4632 | i_ehdrp->e_machine = bed->elf_machine_code; |
4633 | } | |
aa4f99bb | 4634 | |
252b5132 RH |
4635 | i_ehdrp->e_version = bed->s->ev_current; |
4636 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
4637 | ||
c044fabd | 4638 | /* No program header, for now. */ |
252b5132 RH |
4639 | i_ehdrp->e_phoff = 0; |
4640 | i_ehdrp->e_phentsize = 0; | |
4641 | i_ehdrp->e_phnum = 0; | |
4642 | ||
c044fabd | 4643 | /* Each bfd section is section header entry. */ |
252b5132 RH |
4644 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
4645 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
4646 | ||
c044fabd | 4647 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 RH |
4648 | if (abfd->flags & EXEC_P) |
4649 | { | |
c044fabd | 4650 | /* It all happens later. */ |
252b5132 RH |
4651 | #if 0 |
4652 | i_ehdrp->e_phentsize = sizeof (Elf_External_Phdr); | |
4653 | ||
4654 | /* elf_build_phdrs() returns a (NULL-terminated) array of | |
c044fabd | 4655 | Elf_Internal_Phdrs. */ |
252b5132 RH |
4656 | i_phdrp = elf_build_phdrs (abfd, i_ehdrp, i_shdrp, &i_ehdrp->e_phnum); |
4657 | i_ehdrp->e_phoff = outbase; | |
4658 | outbase += i_ehdrp->e_phentsize * i_ehdrp->e_phnum; | |
4659 | #endif | |
4660 | } | |
4661 | else | |
4662 | { | |
4663 | i_ehdrp->e_phentsize = 0; | |
4664 | i_phdrp = 0; | |
4665 | i_ehdrp->e_phoff = 0; | |
4666 | } | |
4667 | ||
4668 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 4669 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 4670 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 4671 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 4672 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 4673 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 RH |
4674 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
4675 | || elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 | |
4676 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) | |
b34976b6 | 4677 | return FALSE; |
252b5132 | 4678 | |
b34976b6 | 4679 | return TRUE; |
252b5132 RH |
4680 | } |
4681 | ||
4682 | /* Assign file positions for all the reloc sections which are not part | |
4683 | of the loadable file image. */ | |
4684 | ||
4685 | void | |
217aa764 | 4686 | _bfd_elf_assign_file_positions_for_relocs (bfd *abfd) |
252b5132 RH |
4687 | { |
4688 | file_ptr off; | |
9ad5cbcf | 4689 | unsigned int i, num_sec; |
252b5132 RH |
4690 | Elf_Internal_Shdr **shdrpp; |
4691 | ||
4692 | off = elf_tdata (abfd)->next_file_pos; | |
4693 | ||
9ad5cbcf AM |
4694 | num_sec = elf_numsections (abfd); |
4695 | for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++) | |
252b5132 RH |
4696 | { |
4697 | Elf_Internal_Shdr *shdrp; | |
4698 | ||
4699 | shdrp = *shdrpp; | |
4700 | if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA) | |
4701 | && shdrp->sh_offset == -1) | |
b34976b6 | 4702 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); |
252b5132 RH |
4703 | } |
4704 | ||
4705 | elf_tdata (abfd)->next_file_pos = off; | |
4706 | } | |
4707 | ||
b34976b6 | 4708 | bfd_boolean |
217aa764 | 4709 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 4710 | { |
9c5bfbb7 | 4711 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
4712 | Elf_Internal_Ehdr *i_ehdrp; |
4713 | Elf_Internal_Shdr **i_shdrp; | |
b34976b6 | 4714 | bfd_boolean failed; |
9ad5cbcf | 4715 | unsigned int count, num_sec; |
252b5132 RH |
4716 | |
4717 | if (! abfd->output_has_begun | |
217aa764 | 4718 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 4719 | return FALSE; |
252b5132 RH |
4720 | |
4721 | i_shdrp = elf_elfsections (abfd); | |
4722 | i_ehdrp = elf_elfheader (abfd); | |
4723 | ||
b34976b6 | 4724 | failed = FALSE; |
252b5132 RH |
4725 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
4726 | if (failed) | |
b34976b6 | 4727 | return FALSE; |
252b5132 RH |
4728 | |
4729 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |
4730 | ||
c044fabd | 4731 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
4732 | num_sec = elf_numsections (abfd); |
4733 | for (count = 1; count < num_sec; count++) | |
252b5132 RH |
4734 | { |
4735 | if (bed->elf_backend_section_processing) | |
4736 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
4737 | if (i_shdrp[count]->contents) | |
4738 | { | |
dc810e39 AM |
4739 | bfd_size_type amt = i_shdrp[count]->sh_size; |
4740 | ||
252b5132 | 4741 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 4742 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 4743 | return FALSE; |
252b5132 | 4744 | } |
9ad5cbcf AM |
4745 | if (count == SHN_LORESERVE - 1) |
4746 | count += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 RH |
4747 | } |
4748 | ||
4749 | /* Write out the section header names. */ | |
4750 | if (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0 | |
2b0f7ef9 | 4751 | || ! _bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd))) |
b34976b6 | 4752 | return FALSE; |
252b5132 RH |
4753 | |
4754 | if (bed->elf_backend_final_write_processing) | |
4755 | (*bed->elf_backend_final_write_processing) (abfd, | |
4756 | elf_tdata (abfd)->linker); | |
4757 | ||
4758 | return bed->s->write_shdrs_and_ehdr (abfd); | |
4759 | } | |
4760 | ||
b34976b6 | 4761 | bfd_boolean |
217aa764 | 4762 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 4763 | { |
c044fabd | 4764 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
4765 | return _bfd_elf_write_object_contents (abfd); |
4766 | } | |
c044fabd KH |
4767 | |
4768 | /* Given a section, search the header to find them. */ | |
4769 | ||
252b5132 | 4770 | int |
198beae2 | 4771 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 4772 | { |
9c5bfbb7 | 4773 | const struct elf_backend_data *bed; |
252b5132 | 4774 | int index; |
252b5132 | 4775 | |
9ad5cbcf AM |
4776 | if (elf_section_data (asect) != NULL |
4777 | && elf_section_data (asect)->this_idx != 0) | |
4778 | return elf_section_data (asect)->this_idx; | |
4779 | ||
4780 | if (bfd_is_abs_section (asect)) | |
af746e92 AM |
4781 | index = SHN_ABS; |
4782 | else if (bfd_is_com_section (asect)) | |
4783 | index = SHN_COMMON; | |
4784 | else if (bfd_is_und_section (asect)) | |
4785 | index = SHN_UNDEF; | |
4786 | else | |
252b5132 | 4787 | { |
af746e92 AM |
4788 | Elf_Internal_Shdr **i_shdrp = elf_elfsections (abfd); |
4789 | int maxindex = elf_numsections (abfd); | |
4790 | ||
4791 | for (index = 1; index < maxindex; index++) | |
4792 | { | |
4793 | Elf_Internal_Shdr *hdr = i_shdrp[index]; | |
4794 | ||
4795 | if (hdr != NULL && hdr->bfd_section == asect) | |
4796 | return index; | |
4797 | } | |
4798 | index = -1; | |
252b5132 RH |
4799 | } |
4800 | ||
af746e92 | 4801 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
4802 | if (bed->elf_backend_section_from_bfd_section) |
4803 | { | |
af746e92 | 4804 | int retval = index; |
9ad5cbcf | 4805 | |
af746e92 AM |
4806 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
4807 | return retval; | |
252b5132 RH |
4808 | } |
4809 | ||
af746e92 AM |
4810 | if (index == -1) |
4811 | bfd_set_error (bfd_error_nonrepresentable_section); | |
252b5132 | 4812 | |
af746e92 | 4813 | return index; |
252b5132 RH |
4814 | } |
4815 | ||
4816 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
4817 | on error. */ | |
4818 | ||
4819 | int | |
217aa764 | 4820 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
4821 | { |
4822 | asymbol *asym_ptr = *asym_ptr_ptr; | |
4823 | int idx; | |
4824 | flagword flags = asym_ptr->flags; | |
4825 | ||
4826 | /* When gas creates relocations against local labels, it creates its | |
4827 | own symbol for the section, but does put the symbol into the | |
4828 | symbol chain, so udata is 0. When the linker is generating | |
4829 | relocatable output, this section symbol may be for one of the | |
4830 | input sections rather than the output section. */ | |
4831 | if (asym_ptr->udata.i == 0 | |
4832 | && (flags & BSF_SECTION_SYM) | |
4833 | && asym_ptr->section) | |
4834 | { | |
4835 | int indx; | |
4836 | ||
4837 | if (asym_ptr->section->output_section != NULL) | |
4838 | indx = asym_ptr->section->output_section->index; | |
4839 | else | |
4840 | indx = asym_ptr->section->index; | |
4e89ac30 L |
4841 | if (indx < elf_num_section_syms (abfd) |
4842 | && elf_section_syms (abfd)[indx] != NULL) | |
252b5132 RH |
4843 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
4844 | } | |
4845 | ||
4846 | idx = asym_ptr->udata.i; | |
4847 | ||
4848 | if (idx == 0) | |
4849 | { | |
4850 | /* This case can occur when using --strip-symbol on a symbol | |
4851 | which is used in a relocation entry. */ | |
4852 | (*_bfd_error_handler) | |
d003868e AM |
4853 | (_("%B: symbol `%s' required but not present"), |
4854 | abfd, bfd_asymbol_name (asym_ptr)); | |
252b5132 RH |
4855 | bfd_set_error (bfd_error_no_symbols); |
4856 | return -1; | |
4857 | } | |
4858 | ||
4859 | #if DEBUG & 4 | |
4860 | { | |
4861 | fprintf (stderr, | |
661a3fd4 | 4862 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx%s\n", |
252b5132 RH |
4863 | (long) asym_ptr, asym_ptr->name, idx, flags, |
4864 | elf_symbol_flags (flags)); | |
4865 | fflush (stderr); | |
4866 | } | |
4867 | #endif | |
4868 | ||
4869 | return idx; | |
4870 | } | |
4871 | ||
4872 | /* Copy private BFD data. This copies any program header information. */ | |
4873 | ||
b34976b6 | 4874 | static bfd_boolean |
217aa764 | 4875 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 | 4876 | { |
b34976b6 AM |
4877 | Elf_Internal_Ehdr *iehdr; |
4878 | struct elf_segment_map *map; | |
4879 | struct elf_segment_map *map_first; | |
4880 | struct elf_segment_map **pointer_to_map; | |
4881 | Elf_Internal_Phdr *segment; | |
4882 | asection *section; | |
4883 | unsigned int i; | |
4884 | unsigned int num_segments; | |
4885 | bfd_boolean phdr_included = FALSE; | |
4886 | bfd_vma maxpagesize; | |
4887 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
4888 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 4889 | const struct elf_backend_data *bed; |
bc67d8a6 | 4890 | |
c044fabd | 4891 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
252b5132 | 4892 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 4893 | return TRUE; |
252b5132 RH |
4894 | |
4895 | if (elf_tdata (ibfd)->phdr == NULL) | |
b34976b6 | 4896 | return TRUE; |
252b5132 | 4897 | |
caf47ea6 | 4898 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
4899 | iehdr = elf_elfheader (ibfd); |
4900 | ||
bc67d8a6 | 4901 | map_first = NULL; |
c044fabd | 4902 | pointer_to_map = &map_first; |
252b5132 RH |
4903 | |
4904 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
4905 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
4906 | ||
4907 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
4908 | #define SEGMENT_END(segment, start) \ |
4909 | (start + (segment->p_memsz > segment->p_filesz \ | |
4910 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 4911 | |
eecdbe52 JJ |
4912 | #define SECTION_SIZE(section, segment) \ |
4913 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
4914 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 4915 | ? section->size : 0) |
eecdbe52 | 4916 | |
b34976b6 | 4917 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 4918 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
4919 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
4920 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 4921 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 4922 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 4923 | |
b34976b6 | 4924 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 4925 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
4926 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
4927 | (section->lma >= base \ | |
eecdbe52 | 4928 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 4929 | <= SEGMENT_END (segment, base))) |
252b5132 | 4930 | |
c044fabd | 4931 | /* Special case: corefile "NOTE" section containing regs, prpsinfo etc. */ |
aecc8f8a AM |
4932 | #define IS_COREFILE_NOTE(p, s) \ |
4933 | (p->p_type == PT_NOTE \ | |
4934 | && bfd_get_format (ibfd) == bfd_core \ | |
4935 | && s->vma == 0 && s->lma == 0 \ | |
4936 | && (bfd_vma) s->filepos >= p->p_offset \ | |
eea6121a | 4937 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 4938 | <= p->p_offset + p->p_filesz)) |
252b5132 RH |
4939 | |
4940 | /* The complicated case when p_vaddr is 0 is to handle the Solaris | |
4941 | linker, which generates a PT_INTERP section with p_vaddr and | |
4942 | p_memsz set to 0. */ | |
aecc8f8a AM |
4943 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
4944 | (p->p_vaddr == 0 \ | |
4945 | && p->p_paddr == 0 \ | |
4946 | && p->p_memsz == 0 \ | |
4947 | && p->p_filesz > 0 \ | |
4948 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 4949 | && s->size > 0 \ |
aecc8f8a | 4950 | && (bfd_vma) s->filepos >= p->p_offset \ |
eea6121a | 4951 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 4952 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 4953 | |
bc67d8a6 NC |
4954 | /* Decide if the given section should be included in the given segment. |
4955 | A section will be included if: | |
f5ffc919 NC |
4956 | 1. It is within the address space of the segment -- we use the LMA |
4957 | if that is set for the segment and the VMA otherwise, | |
bc67d8a6 NC |
4958 | 2. It is an allocated segment, |
4959 | 3. There is an output section associated with it, | |
eecdbe52 | 4960 | 4. The section has not already been allocated to a previous segment. |
03394ac9 NC |
4961 | 5. PT_GNU_STACK segments do not include any sections. |
4962 | 6. PT_TLS segment includes only SHF_TLS sections. | |
4963 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. */ | |
caf47ea6 | 4964 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ |
aecc8f8a AM |
4965 | ((((segment->p_paddr \ |
4966 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
4967 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
f5ffc919 | 4968 | && (section->flags & SEC_ALLOC) != 0) \ |
b6821651 | 4969 | || IS_COREFILE_NOTE (segment, section)) \ |
f5ffc919 | 4970 | && section->output_section != NULL \ |
03394ac9 | 4971 | && segment->p_type != PT_GNU_STACK \ |
eecdbe52 JJ |
4972 | && (segment->p_type != PT_TLS \ |
4973 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
4974 | && (segment->p_type == PT_LOAD \ | |
4975 | || segment->p_type == PT_TLS \ | |
4976 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
82e51918 | 4977 | && ! section->segment_mark) |
bc67d8a6 | 4978 | |
b34976b6 | 4979 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
4980 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
4981 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
4982 | ||
4983 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
4984 | their VMA address ranges and their LMA address ranges overlap. | |
4985 | It is possible to have overlapping VMA ranges without overlapping LMA | |
4986 | ranges. RedBoot images for example can have both .data and .bss mapped | |
4987 | to the same VMA range, but with the .data section mapped to a different | |
4988 | LMA. */ | |
aecc8f8a | 4989 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea NC |
4990 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
4991 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ | |
4992 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ | |
4993 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) | |
bc67d8a6 NC |
4994 | |
4995 | /* Initialise the segment mark field. */ | |
4996 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 4997 | section->segment_mark = FALSE; |
bc67d8a6 | 4998 | |
252b5132 | 4999 | /* Scan through the segments specified in the program header |
bc67d8a6 | 5000 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 5001 | in the loadable segments. These can be created by weird |
aecc8f8a | 5002 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
5003 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
5004 | i < num_segments; | |
c044fabd | 5005 | i++, segment++) |
252b5132 | 5006 | { |
252b5132 | 5007 | unsigned int j; |
c044fabd | 5008 | Elf_Internal_Phdr *segment2; |
252b5132 | 5009 | |
aecc8f8a AM |
5010 | if (segment->p_type == PT_INTERP) |
5011 | for (section = ibfd->sections; section; section = section->next) | |
5012 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
5013 | { | |
5014 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 5015 | assignment code will work. */ |
aecc8f8a AM |
5016 | segment->p_vaddr = section->vma; |
5017 | break; | |
5018 | } | |
5019 | ||
bc67d8a6 NC |
5020 | if (segment->p_type != PT_LOAD) |
5021 | continue; | |
c044fabd | 5022 | |
bc67d8a6 | 5023 | /* Determine if this segment overlaps any previous segments. */ |
c044fabd | 5024 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2 ++) |
bc67d8a6 NC |
5025 | { |
5026 | bfd_signed_vma extra_length; | |
c044fabd | 5027 | |
bc67d8a6 NC |
5028 | if (segment2->p_type != PT_LOAD |
5029 | || ! SEGMENT_OVERLAPS (segment, segment2)) | |
5030 | continue; | |
c044fabd | 5031 | |
bc67d8a6 NC |
5032 | /* Merge the two segments together. */ |
5033 | if (segment2->p_vaddr < segment->p_vaddr) | |
5034 | { | |
c044fabd KH |
5035 | /* Extend SEGMENT2 to include SEGMENT and then delete |
5036 | SEGMENT. */ | |
bc67d8a6 NC |
5037 | extra_length = |
5038 | SEGMENT_END (segment, segment->p_vaddr) | |
5039 | - SEGMENT_END (segment2, segment2->p_vaddr); | |
c044fabd | 5040 | |
bc67d8a6 NC |
5041 | if (extra_length > 0) |
5042 | { | |
5043 | segment2->p_memsz += extra_length; | |
5044 | segment2->p_filesz += extra_length; | |
5045 | } | |
c044fabd | 5046 | |
bc67d8a6 | 5047 | segment->p_type = PT_NULL; |
c044fabd | 5048 | |
bc67d8a6 NC |
5049 | /* Since we have deleted P we must restart the outer loop. */ |
5050 | i = 0; | |
5051 | segment = elf_tdata (ibfd)->phdr; | |
5052 | break; | |
5053 | } | |
5054 | else | |
5055 | { | |
c044fabd KH |
5056 | /* Extend SEGMENT to include SEGMENT2 and then delete |
5057 | SEGMENT2. */ | |
bc67d8a6 NC |
5058 | extra_length = |
5059 | SEGMENT_END (segment2, segment2->p_vaddr) | |
5060 | - SEGMENT_END (segment, segment->p_vaddr); | |
c044fabd | 5061 | |
bc67d8a6 NC |
5062 | if (extra_length > 0) |
5063 | { | |
5064 | segment->p_memsz += extra_length; | |
5065 | segment->p_filesz += extra_length; | |
5066 | } | |
c044fabd | 5067 | |
bc67d8a6 NC |
5068 | segment2->p_type = PT_NULL; |
5069 | } | |
5070 | } | |
5071 | } | |
c044fabd | 5072 | |
bc67d8a6 NC |
5073 | /* The second scan attempts to assign sections to segments. */ |
5074 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
5075 | i < num_segments; | |
5076 | i ++, segment ++) | |
5077 | { | |
5078 | unsigned int section_count; | |
5079 | asection ** sections; | |
5080 | asection * output_section; | |
5081 | unsigned int isec; | |
5082 | bfd_vma matching_lma; | |
5083 | bfd_vma suggested_lma; | |
5084 | unsigned int j; | |
dc810e39 | 5085 | bfd_size_type amt; |
bc67d8a6 NC |
5086 | |
5087 | if (segment->p_type == PT_NULL) | |
5088 | continue; | |
c044fabd | 5089 | |
bc67d8a6 | 5090 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
5091 | for (section = ibfd->sections, section_count = 0; |
5092 | section != NULL; | |
5093 | section = section->next) | |
caf47ea6 | 5094 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c044fabd | 5095 | ++section_count; |
811072d8 | 5096 | |
b5f852ea NC |
5097 | /* Allocate a segment map big enough to contain |
5098 | all of the sections we have selected. */ | |
dc810e39 AM |
5099 | amt = sizeof (struct elf_segment_map); |
5100 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
217aa764 | 5101 | map = bfd_alloc (obfd, amt); |
bc67d8a6 | 5102 | if (map == NULL) |
b34976b6 | 5103 | return FALSE; |
252b5132 RH |
5104 | |
5105 | /* Initialise the fields of the segment map. Default to | |
5106 | using the physical address of the segment in the input BFD. */ | |
bc67d8a6 NC |
5107 | map->next = NULL; |
5108 | map->p_type = segment->p_type; | |
5109 | map->p_flags = segment->p_flags; | |
5110 | map->p_flags_valid = 1; | |
5111 | map->p_paddr = segment->p_paddr; | |
5112 | map->p_paddr_valid = 1; | |
252b5132 RH |
5113 | |
5114 | /* Determine if this segment contains the ELF file header | |
5115 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
5116 | map->includes_filehdr = (segment->p_offset == 0 |
5117 | && segment->p_filesz >= iehdr->e_ehsize); | |
252b5132 | 5118 | |
bc67d8a6 | 5119 | map->includes_phdrs = 0; |
252b5132 | 5120 | |
bc67d8a6 | 5121 | if (! phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 5122 | { |
bc67d8a6 NC |
5123 | map->includes_phdrs = |
5124 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
5125 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
5126 | >= ((bfd_vma) iehdr->e_phoff |
5127 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 5128 | |
bc67d8a6 | 5129 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 5130 | phdr_included = TRUE; |
252b5132 RH |
5131 | } |
5132 | ||
bc67d8a6 | 5133 | if (section_count == 0) |
252b5132 RH |
5134 | { |
5135 | /* Special segments, such as the PT_PHDR segment, may contain | |
5136 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 NC |
5137 | something. They are allowed by the ELF spec however, so only |
5138 | a warning is produced. */ | |
bc67d8a6 | 5139 | if (segment->p_type == PT_LOAD) |
caf47ea6 | 5140 | (*_bfd_error_handler) |
d003868e AM |
5141 | (_("%B: warning: Empty loadable segment detected, is this intentional ?\n"), |
5142 | ibfd); | |
252b5132 | 5143 | |
bc67d8a6 | 5144 | map->count = 0; |
c044fabd KH |
5145 | *pointer_to_map = map; |
5146 | pointer_to_map = &map->next; | |
252b5132 RH |
5147 | |
5148 | continue; | |
5149 | } | |
5150 | ||
5151 | /* Now scan the sections in the input BFD again and attempt | |
5152 | to add their corresponding output sections to the segment map. | |
5153 | The problem here is how to handle an output section which has | |
5154 | been moved (ie had its LMA changed). There are four possibilities: | |
5155 | ||
5156 | 1. None of the sections have been moved. | |
5157 | In this case we can continue to use the segment LMA from the | |
5158 | input BFD. | |
5159 | ||
5160 | 2. All of the sections have been moved by the same amount. | |
5161 | In this case we can change the segment's LMA to match the LMA | |
5162 | of the first section. | |
5163 | ||
5164 | 3. Some of the sections have been moved, others have not. | |
5165 | In this case those sections which have not been moved can be | |
5166 | placed in the current segment which will have to have its size, | |
5167 | and possibly its LMA changed, and a new segment or segments will | |
5168 | have to be created to contain the other sections. | |
5169 | ||
b5f852ea | 5170 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
5171 | In this case we can change the segment's LMA to match the LMA |
5172 | of the first section and we will have to create a new segment | |
5173 | or segments to contain the other sections. | |
5174 | ||
5175 | In order to save time, we allocate an array to hold the section | |
5176 | pointers that we are interested in. As these sections get assigned | |
5177 | to a segment, they are removed from this array. */ | |
5178 | ||
0b14c2aa L |
5179 | /* Gcc 2.96 miscompiles this code on mips. Don't do casting here |
5180 | to work around this long long bug. */ | |
5181 | amt = section_count * sizeof (asection *); | |
217aa764 | 5182 | sections = bfd_malloc (amt); |
252b5132 | 5183 | if (sections == NULL) |
b34976b6 | 5184 | return FALSE; |
252b5132 RH |
5185 | |
5186 | /* Step One: Scan for segment vs section LMA conflicts. | |
5187 | Also add the sections to the section array allocated above. | |
5188 | Also add the sections to the current segment. In the common | |
5189 | case, where the sections have not been moved, this means that | |
5190 | we have completely filled the segment, and there is nothing | |
5191 | more to do. */ | |
252b5132 | 5192 | isec = 0; |
72730e0c | 5193 | matching_lma = 0; |
252b5132 RH |
5194 | suggested_lma = 0; |
5195 | ||
bc67d8a6 NC |
5196 | for (j = 0, section = ibfd->sections; |
5197 | section != NULL; | |
5198 | section = section->next) | |
252b5132 | 5199 | { |
caf47ea6 | 5200 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 5201 | { |
bc67d8a6 NC |
5202 | output_section = section->output_section; |
5203 | ||
5204 | sections[j ++] = section; | |
252b5132 RH |
5205 | |
5206 | /* The Solaris native linker always sets p_paddr to 0. | |
5207 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
5208 | correct value. Note - some backends require that |
5209 | p_paddr be left as zero. */ | |
bc67d8a6 | 5210 | if (segment->p_paddr == 0 |
4455705d | 5211 | && segment->p_vaddr != 0 |
5e8d7549 | 5212 | && (! bed->want_p_paddr_set_to_zero) |
252b5132 | 5213 | && isec == 0 |
bc67d8a6 NC |
5214 | && output_section->lma != 0 |
5215 | && (output_section->vma == (segment->p_vaddr | |
5216 | + (map->includes_filehdr | |
5217 | ? iehdr->e_ehsize | |
5218 | : 0) | |
5219 | + (map->includes_phdrs | |
079e9a2f AM |
5220 | ? (iehdr->e_phnum |
5221 | * iehdr->e_phentsize) | |
bc67d8a6 NC |
5222 | : 0)))) |
5223 | map->p_paddr = segment->p_vaddr; | |
252b5132 RH |
5224 | |
5225 | /* Match up the physical address of the segment with the | |
5226 | LMA address of the output section. */ | |
bc67d8a6 | 5227 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 NC |
5228 | || IS_COREFILE_NOTE (segment, section) |
5229 | || (bed->want_p_paddr_set_to_zero && | |
5230 | IS_CONTAINED_BY_VMA (output_section, segment)) | |
5231 | ) | |
252b5132 RH |
5232 | { |
5233 | if (matching_lma == 0) | |
bc67d8a6 | 5234 | matching_lma = output_section->lma; |
252b5132 RH |
5235 | |
5236 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 5237 | then it does not overlap any other section within that |
252b5132 | 5238 | segment. */ |
bc67d8a6 | 5239 | map->sections[isec ++] = output_section; |
252b5132 RH |
5240 | } |
5241 | else if (suggested_lma == 0) | |
bc67d8a6 | 5242 | suggested_lma = output_section->lma; |
252b5132 RH |
5243 | } |
5244 | } | |
5245 | ||
bc67d8a6 | 5246 | BFD_ASSERT (j == section_count); |
252b5132 RH |
5247 | |
5248 | /* Step Two: Adjust the physical address of the current segment, | |
5249 | if necessary. */ | |
bc67d8a6 | 5250 | if (isec == section_count) |
252b5132 RH |
5251 | { |
5252 | /* All of the sections fitted within the segment as currently | |
5253 | specified. This is the default case. Add the segment to | |
5254 | the list of built segments and carry on to process the next | |
5255 | program header in the input BFD. */ | |
bc67d8a6 | 5256 | map->count = section_count; |
c044fabd KH |
5257 | *pointer_to_map = map; |
5258 | pointer_to_map = &map->next; | |
252b5132 RH |
5259 | |
5260 | free (sections); | |
5261 | continue; | |
5262 | } | |
252b5132 RH |
5263 | else |
5264 | { | |
72730e0c AM |
5265 | if (matching_lma != 0) |
5266 | { | |
5267 | /* At least one section fits inside the current segment. | |
5268 | Keep it, but modify its physical address to match the | |
5269 | LMA of the first section that fitted. */ | |
bc67d8a6 | 5270 | map->p_paddr = matching_lma; |
72730e0c AM |
5271 | } |
5272 | else | |
5273 | { | |
5274 | /* None of the sections fitted inside the current segment. | |
5275 | Change the current segment's physical address to match | |
5276 | the LMA of the first section. */ | |
bc67d8a6 | 5277 | map->p_paddr = suggested_lma; |
72730e0c AM |
5278 | } |
5279 | ||
bc67d8a6 NC |
5280 | /* Offset the segment physical address from the lma |
5281 | to allow for space taken up by elf headers. */ | |
5282 | if (map->includes_filehdr) | |
5283 | map->p_paddr -= iehdr->e_ehsize; | |
252b5132 | 5284 | |
bc67d8a6 NC |
5285 | if (map->includes_phdrs) |
5286 | { | |
5287 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
5288 | ||
5289 | /* iehdr->e_phnum is just an estimate of the number | |
5290 | of program headers that we will need. Make a note | |
5291 | here of the number we used and the segment we chose | |
5292 | to hold these headers, so that we can adjust the | |
5293 | offset when we know the correct value. */ | |
5294 | phdr_adjust_num = iehdr->e_phnum; | |
5295 | phdr_adjust_seg = map; | |
5296 | } | |
252b5132 RH |
5297 | } |
5298 | ||
5299 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 5300 | those that fit to the current segment and removing them from the |
252b5132 RH |
5301 | sections array; but making sure not to leave large gaps. Once all |
5302 | possible sections have been assigned to the current segment it is | |
5303 | added to the list of built segments and if sections still remain | |
5304 | to be assigned, a new segment is constructed before repeating | |
5305 | the loop. */ | |
5306 | isec = 0; | |
5307 | do | |
5308 | { | |
bc67d8a6 | 5309 | map->count = 0; |
252b5132 RH |
5310 | suggested_lma = 0; |
5311 | ||
5312 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 5313 | for (j = 0; j < section_count; j++) |
252b5132 | 5314 | { |
bc67d8a6 | 5315 | section = sections[j]; |
252b5132 | 5316 | |
bc67d8a6 | 5317 | if (section == NULL) |
252b5132 RH |
5318 | continue; |
5319 | ||
bc67d8a6 | 5320 | output_section = section->output_section; |
252b5132 | 5321 | |
bc67d8a6 | 5322 | BFD_ASSERT (output_section != NULL); |
c044fabd | 5323 | |
bc67d8a6 NC |
5324 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5325 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 5326 | { |
bc67d8a6 | 5327 | if (map->count == 0) |
252b5132 RH |
5328 | { |
5329 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
5330 | the beginning of the segment, then something is |
5331 | wrong. */ | |
5332 | if (output_section->lma != | |
5333 | (map->p_paddr | |
5334 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
5335 | + (map->includes_phdrs | |
5336 | ? iehdr->e_phnum * iehdr->e_phentsize | |
5337 | : 0))) | |
252b5132 RH |
5338 | abort (); |
5339 | } | |
5340 | else | |
5341 | { | |
5342 | asection * prev_sec; | |
252b5132 | 5343 | |
bc67d8a6 | 5344 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
5345 | |
5346 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
5347 | and the start of this section is more than |
5348 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 5349 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 5350 | maxpagesize) |
caf47ea6 | 5351 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
eea6121a | 5352 | || ((prev_sec->lma + prev_sec->size) |
079e9a2f | 5353 | > output_section->lma)) |
252b5132 RH |
5354 | { |
5355 | if (suggested_lma == 0) | |
bc67d8a6 | 5356 | suggested_lma = output_section->lma; |
252b5132 RH |
5357 | |
5358 | continue; | |
5359 | } | |
5360 | } | |
5361 | ||
bc67d8a6 | 5362 | map->sections[map->count++] = output_section; |
252b5132 RH |
5363 | ++isec; |
5364 | sections[j] = NULL; | |
b34976b6 | 5365 | section->segment_mark = TRUE; |
252b5132 RH |
5366 | } |
5367 | else if (suggested_lma == 0) | |
bc67d8a6 | 5368 | suggested_lma = output_section->lma; |
252b5132 RH |
5369 | } |
5370 | ||
bc67d8a6 | 5371 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
5372 | |
5373 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
5374 | *pointer_to_map = map; |
5375 | pointer_to_map = &map->next; | |
252b5132 | 5376 | |
bc67d8a6 | 5377 | if (isec < section_count) |
252b5132 RH |
5378 | { |
5379 | /* We still have not allocated all of the sections to | |
5380 | segments. Create a new segment here, initialise it | |
5381 | and carry on looping. */ | |
dc810e39 AM |
5382 | amt = sizeof (struct elf_segment_map); |
5383 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
217aa764 | 5384 | map = bfd_alloc (obfd, amt); |
bc67d8a6 | 5385 | if (map == NULL) |
5ed6aba4 NC |
5386 | { |
5387 | free (sections); | |
5388 | return FALSE; | |
5389 | } | |
252b5132 RH |
5390 | |
5391 | /* Initialise the fields of the segment map. Set the physical | |
5392 | physical address to the LMA of the first section that has | |
5393 | not yet been assigned. */ | |
bc67d8a6 NC |
5394 | map->next = NULL; |
5395 | map->p_type = segment->p_type; | |
5396 | map->p_flags = segment->p_flags; | |
5397 | map->p_flags_valid = 1; | |
5398 | map->p_paddr = suggested_lma; | |
5399 | map->p_paddr_valid = 1; | |
5400 | map->includes_filehdr = 0; | |
5401 | map->includes_phdrs = 0; | |
252b5132 RH |
5402 | } |
5403 | } | |
bc67d8a6 | 5404 | while (isec < section_count); |
252b5132 RH |
5405 | |
5406 | free (sections); | |
5407 | } | |
5408 | ||
5409 | /* The Solaris linker creates program headers in which all the | |
5410 | p_paddr fields are zero. When we try to objcopy or strip such a | |
5411 | file, we get confused. Check for this case, and if we find it | |
5412 | reset the p_paddr_valid fields. */ | |
bc67d8a6 NC |
5413 | for (map = map_first; map != NULL; map = map->next) |
5414 | if (map->p_paddr != 0) | |
252b5132 | 5415 | break; |
bc67d8a6 | 5416 | if (map == NULL) |
b5f852ea NC |
5417 | for (map = map_first; map != NULL; map = map->next) |
5418 | map->p_paddr_valid = 0; | |
252b5132 | 5419 | |
bc67d8a6 NC |
5420 | elf_tdata (obfd)->segment_map = map_first; |
5421 | ||
5422 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 5423 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
5424 | the offset if necessary. */ |
5425 | if (phdr_adjust_seg != NULL) | |
5426 | { | |
5427 | unsigned int count; | |
c044fabd | 5428 | |
bc67d8a6 | 5429 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 5430 | count++; |
252b5132 | 5431 | |
bc67d8a6 NC |
5432 | if (count > phdr_adjust_num) |
5433 | phdr_adjust_seg->p_paddr | |
5434 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
5435 | } | |
c044fabd | 5436 | |
252b5132 | 5437 | #if 0 |
c044fabd KH |
5438 | /* Final Step: Sort the segments into ascending order of physical |
5439 | address. */ | |
bc67d8a6 | 5440 | if (map_first != NULL) |
252b5132 | 5441 | { |
c044fabd | 5442 | struct elf_segment_map *prev; |
252b5132 | 5443 | |
bc67d8a6 NC |
5444 | prev = map_first; |
5445 | for (map = map_first->next; map != NULL; prev = map, map = map->next) | |
252b5132 | 5446 | { |
bc67d8a6 NC |
5447 | /* Yes I know - its a bubble sort.... */ |
5448 | if (map->next != NULL && (map->next->p_paddr < map->p_paddr)) | |
252b5132 | 5449 | { |
bc67d8a6 NC |
5450 | /* Swap map and map->next. */ |
5451 | prev->next = map->next; | |
5452 | map->next = map->next->next; | |
5453 | prev->next->next = map; | |
252b5132 | 5454 | |
bc67d8a6 NC |
5455 | /* Restart loop. */ |
5456 | map = map_first; | |
252b5132 RH |
5457 | } |
5458 | } | |
5459 | } | |
5460 | #endif | |
5461 | ||
bc67d8a6 | 5462 | #undef SEGMENT_END |
eecdbe52 | 5463 | #undef SECTION_SIZE |
bc67d8a6 NC |
5464 | #undef IS_CONTAINED_BY_VMA |
5465 | #undef IS_CONTAINED_BY_LMA | |
252b5132 | 5466 | #undef IS_COREFILE_NOTE |
bc67d8a6 NC |
5467 | #undef IS_SOLARIS_PT_INTERP |
5468 | #undef INCLUDE_SECTION_IN_SEGMENT | |
5469 | #undef SEGMENT_AFTER_SEGMENT | |
5470 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 5471 | return TRUE; |
252b5132 RH |
5472 | } |
5473 | ||
5474 | /* Copy private section information. This copies over the entsize | |
5475 | field, and sometimes the info field. */ | |
5476 | ||
b34976b6 | 5477 | bfd_boolean |
217aa764 AM |
5478 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
5479 | asection *isec, | |
5480 | bfd *obfd, | |
5481 | asection *osec) | |
252b5132 RH |
5482 | { |
5483 | Elf_Internal_Shdr *ihdr, *ohdr; | |
5484 | ||
5485 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
5486 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 5487 | return TRUE; |
252b5132 | 5488 | |
252b5132 RH |
5489 | ihdr = &elf_section_data (isec)->this_hdr; |
5490 | ohdr = &elf_section_data (osec)->this_hdr; | |
5491 | ||
5492 | ohdr->sh_entsize = ihdr->sh_entsize; | |
5493 | ||
5494 | if (ihdr->sh_type == SHT_SYMTAB | |
5495 | || ihdr->sh_type == SHT_DYNSYM | |
5496 | || ihdr->sh_type == SHT_GNU_verneed | |
5497 | || ihdr->sh_type == SHT_GNU_verdef) | |
5498 | ohdr->sh_info = ihdr->sh_info; | |
5499 | ||
9dce4196 AM |
5500 | /* Set things up for objcopy. The output SHT_GROUP section will |
5501 | have its elf_next_in_group pointing back to the input group | |
5502 | members. */ | |
5503 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
5504 | elf_group_name (osec) = elf_group_name (isec); | |
5505 | ||
68bfbfcc | 5506 | osec->use_rela_p = isec->use_rela_p; |
bf572ba0 | 5507 | |
b34976b6 | 5508 | return TRUE; |
252b5132 RH |
5509 | } |
5510 | ||
80fccad2 BW |
5511 | /* Copy private header information. */ |
5512 | ||
5513 | bfd_boolean | |
5514 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
5515 | { | |
5516 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
5517 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
5518 | return TRUE; | |
5519 | ||
5520 | /* Copy over private BFD data if it has not already been copied. | |
5521 | This must be done here, rather than in the copy_private_bfd_data | |
5522 | entry point, because the latter is called after the section | |
5523 | contents have been set, which means that the program headers have | |
5524 | already been worked out. */ | |
5525 | if (elf_tdata (obfd)->segment_map == NULL && elf_tdata (ibfd)->phdr != NULL) | |
5526 | { | |
5527 | if (! copy_private_bfd_data (ibfd, obfd)) | |
5528 | return FALSE; | |
5529 | } | |
5530 | ||
5531 | return TRUE; | |
5532 | } | |
5533 | ||
252b5132 RH |
5534 | /* Copy private symbol information. If this symbol is in a section |
5535 | which we did not map into a BFD section, try to map the section | |
5536 | index correctly. We use special macro definitions for the mapped | |
5537 | section indices; these definitions are interpreted by the | |
5538 | swap_out_syms function. */ | |
5539 | ||
9ad5cbcf AM |
5540 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
5541 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
5542 | #define MAP_STRTAB (SHN_HIOS + 3) | |
5543 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
5544 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 5545 | |
b34976b6 | 5546 | bfd_boolean |
217aa764 AM |
5547 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
5548 | asymbol *isymarg, | |
5549 | bfd *obfd, | |
5550 | asymbol *osymarg) | |
252b5132 RH |
5551 | { |
5552 | elf_symbol_type *isym, *osym; | |
5553 | ||
5554 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
5555 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 5556 | return TRUE; |
252b5132 RH |
5557 | |
5558 | isym = elf_symbol_from (ibfd, isymarg); | |
5559 | osym = elf_symbol_from (obfd, osymarg); | |
5560 | ||
5561 | if (isym != NULL | |
5562 | && osym != NULL | |
5563 | && bfd_is_abs_section (isym->symbol.section)) | |
5564 | { | |
5565 | unsigned int shndx; | |
5566 | ||
5567 | shndx = isym->internal_elf_sym.st_shndx; | |
5568 | if (shndx == elf_onesymtab (ibfd)) | |
5569 | shndx = MAP_ONESYMTAB; | |
5570 | else if (shndx == elf_dynsymtab (ibfd)) | |
5571 | shndx = MAP_DYNSYMTAB; | |
5572 | else if (shndx == elf_tdata (ibfd)->strtab_section) | |
5573 | shndx = MAP_STRTAB; | |
5574 | else if (shndx == elf_tdata (ibfd)->shstrtab_section) | |
5575 | shndx = MAP_SHSTRTAB; | |
9ad5cbcf AM |
5576 | else if (shndx == elf_tdata (ibfd)->symtab_shndx_section) |
5577 | shndx = MAP_SYM_SHNDX; | |
252b5132 RH |
5578 | osym->internal_elf_sym.st_shndx = shndx; |
5579 | } | |
5580 | ||
b34976b6 | 5581 | return TRUE; |
252b5132 RH |
5582 | } |
5583 | ||
5584 | /* Swap out the symbols. */ | |
5585 | ||
b34976b6 | 5586 | static bfd_boolean |
217aa764 AM |
5587 | swap_out_syms (bfd *abfd, |
5588 | struct bfd_strtab_hash **sttp, | |
5589 | int relocatable_p) | |
252b5132 | 5590 | { |
9c5bfbb7 | 5591 | const struct elf_backend_data *bed; |
079e9a2f AM |
5592 | int symcount; |
5593 | asymbol **syms; | |
5594 | struct bfd_strtab_hash *stt; | |
5595 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 5596 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f AM |
5597 | Elf_Internal_Shdr *symstrtab_hdr; |
5598 | char *outbound_syms; | |
9ad5cbcf | 5599 | char *outbound_shndx; |
079e9a2f AM |
5600 | int idx; |
5601 | bfd_size_type amt; | |
174fd7f9 | 5602 | bfd_boolean name_local_sections; |
252b5132 RH |
5603 | |
5604 | if (!elf_map_symbols (abfd)) | |
b34976b6 | 5605 | return FALSE; |
252b5132 | 5606 | |
c044fabd | 5607 | /* Dump out the symtabs. */ |
079e9a2f AM |
5608 | stt = _bfd_elf_stringtab_init (); |
5609 | if (stt == NULL) | |
b34976b6 | 5610 | return FALSE; |
252b5132 | 5611 | |
079e9a2f AM |
5612 | bed = get_elf_backend_data (abfd); |
5613 | symcount = bfd_get_symcount (abfd); | |
5614 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
5615 | symtab_hdr->sh_type = SHT_SYMTAB; | |
5616 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
5617 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
5618 | symtab_hdr->sh_info = elf_num_locals (abfd) + 1; | |
45d6a902 | 5619 | symtab_hdr->sh_addralign = 1 << bed->s->log_file_align; |
079e9a2f AM |
5620 | |
5621 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
5622 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
5623 | ||
5624 | amt = (bfd_size_type) (1 + symcount) * bed->s->sizeof_sym; | |
5625 | outbound_syms = bfd_alloc (abfd, amt); | |
5626 | if (outbound_syms == NULL) | |
5ed6aba4 NC |
5627 | { |
5628 | _bfd_stringtab_free (stt); | |
5629 | return FALSE; | |
5630 | } | |
217aa764 | 5631 | symtab_hdr->contents = outbound_syms; |
252b5132 | 5632 | |
9ad5cbcf AM |
5633 | outbound_shndx = NULL; |
5634 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
5635 | if (symtab_shndx_hdr->sh_name != 0) | |
5636 | { | |
5637 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
1126897b | 5638 | outbound_shndx = bfd_zalloc (abfd, amt); |
9ad5cbcf | 5639 | if (outbound_shndx == NULL) |
5ed6aba4 NC |
5640 | { |
5641 | _bfd_stringtab_free (stt); | |
5642 | return FALSE; | |
5643 | } | |
5644 | ||
9ad5cbcf AM |
5645 | symtab_shndx_hdr->contents = outbound_shndx; |
5646 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
5647 | symtab_shndx_hdr->sh_size = amt; | |
5648 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
5649 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
5650 | } | |
5651 | ||
589e6347 | 5652 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
5653 | { |
5654 | /* Fill in zeroth symbol and swap it out. */ | |
5655 | Elf_Internal_Sym sym; | |
5656 | sym.st_name = 0; | |
5657 | sym.st_value = 0; | |
5658 | sym.st_size = 0; | |
5659 | sym.st_info = 0; | |
5660 | sym.st_other = 0; | |
5661 | sym.st_shndx = SHN_UNDEF; | |
9ad5cbcf | 5662 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 5663 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
5664 | if (outbound_shndx != NULL) |
5665 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 5666 | } |
252b5132 | 5667 | |
174fd7f9 RS |
5668 | name_local_sections |
5669 | = (bed->elf_backend_name_local_section_symbols | |
5670 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
5671 | ||
079e9a2f AM |
5672 | syms = bfd_get_outsymbols (abfd); |
5673 | for (idx = 0; idx < symcount; idx++) | |
252b5132 | 5674 | { |
252b5132 | 5675 | Elf_Internal_Sym sym; |
079e9a2f AM |
5676 | bfd_vma value = syms[idx]->value; |
5677 | elf_symbol_type *type_ptr; | |
5678 | flagword flags = syms[idx]->flags; | |
5679 | int type; | |
252b5132 | 5680 | |
174fd7f9 RS |
5681 | if (!name_local_sections |
5682 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
5683 | { |
5684 | /* Local section symbols have no name. */ | |
5685 | sym.st_name = 0; | |
5686 | } | |
5687 | else | |
5688 | { | |
5689 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |
5690 | syms[idx]->name, | |
b34976b6 | 5691 | TRUE, FALSE); |
079e9a2f | 5692 | if (sym.st_name == (unsigned long) -1) |
5ed6aba4 NC |
5693 | { |
5694 | _bfd_stringtab_free (stt); | |
5695 | return FALSE; | |
5696 | } | |
079e9a2f | 5697 | } |
252b5132 | 5698 | |
079e9a2f | 5699 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 5700 | |
079e9a2f AM |
5701 | if ((flags & BSF_SECTION_SYM) == 0 |
5702 | && bfd_is_com_section (syms[idx]->section)) | |
5703 | { | |
5704 | /* ELF common symbols put the alignment into the `value' field, | |
5705 | and the size into the `size' field. This is backwards from | |
5706 | how BFD handles it, so reverse it here. */ | |
5707 | sym.st_size = value; | |
5708 | if (type_ptr == NULL | |
5709 | || type_ptr->internal_elf_sym.st_value == 0) | |
5710 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
5711 | else | |
5712 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
5713 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
5714 | (abfd, syms[idx]->section); | |
5715 | } | |
5716 | else | |
5717 | { | |
5718 | asection *sec = syms[idx]->section; | |
5719 | int shndx; | |
252b5132 | 5720 | |
079e9a2f AM |
5721 | if (sec->output_section) |
5722 | { | |
5723 | value += sec->output_offset; | |
5724 | sec = sec->output_section; | |
5725 | } | |
589e6347 | 5726 | |
079e9a2f AM |
5727 | /* Don't add in the section vma for relocatable output. */ |
5728 | if (! relocatable_p) | |
5729 | value += sec->vma; | |
5730 | sym.st_value = value; | |
5731 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
5732 | ||
5733 | if (bfd_is_abs_section (sec) | |
5734 | && type_ptr != NULL | |
5735 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
5736 | { | |
5737 | /* This symbol is in a real ELF section which we did | |
5738 | not create as a BFD section. Undo the mapping done | |
5739 | by copy_private_symbol_data. */ | |
5740 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
5741 | switch (shndx) | |
5742 | { | |
5743 | case MAP_ONESYMTAB: | |
5744 | shndx = elf_onesymtab (abfd); | |
5745 | break; | |
5746 | case MAP_DYNSYMTAB: | |
5747 | shndx = elf_dynsymtab (abfd); | |
5748 | break; | |
5749 | case MAP_STRTAB: | |
5750 | shndx = elf_tdata (abfd)->strtab_section; | |
5751 | break; | |
5752 | case MAP_SHSTRTAB: | |
5753 | shndx = elf_tdata (abfd)->shstrtab_section; | |
5754 | break; | |
9ad5cbcf AM |
5755 | case MAP_SYM_SHNDX: |
5756 | shndx = elf_tdata (abfd)->symtab_shndx_section; | |
5757 | break; | |
079e9a2f AM |
5758 | default: |
5759 | break; | |
5760 | } | |
5761 | } | |
5762 | else | |
5763 | { | |
5764 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 5765 | |
079e9a2f AM |
5766 | if (shndx == -1) |
5767 | { | |
5768 | asection *sec2; | |
5769 | ||
5770 | /* Writing this would be a hell of a lot easier if | |
5771 | we had some decent documentation on bfd, and | |
5772 | knew what to expect of the library, and what to | |
5773 | demand of applications. For example, it | |
5774 | appears that `objcopy' might not set the | |
5775 | section of a symbol to be a section that is | |
5776 | actually in the output file. */ | |
5777 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
589e6347 NC |
5778 | if (sec2 == NULL) |
5779 | { | |
5780 | _bfd_error_handler (_("\ | |
5781 | Unable to find equivalent output section for symbol '%s' from section '%s'"), | |
5782 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
5783 | sec->name); | |
811072d8 | 5784 | bfd_set_error (bfd_error_invalid_operation); |
5ed6aba4 | 5785 | _bfd_stringtab_free (stt); |
589e6347 NC |
5786 | return FALSE; |
5787 | } | |
811072d8 | 5788 | |
079e9a2f AM |
5789 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); |
5790 | BFD_ASSERT (shndx != -1); | |
5791 | } | |
5792 | } | |
252b5132 | 5793 | |
079e9a2f AM |
5794 | sym.st_shndx = shndx; |
5795 | } | |
252b5132 | 5796 | |
13ae64f3 JJ |
5797 | if ((flags & BSF_THREAD_LOCAL) != 0) |
5798 | type = STT_TLS; | |
5799 | else if ((flags & BSF_FUNCTION) != 0) | |
079e9a2f AM |
5800 | type = STT_FUNC; |
5801 | else if ((flags & BSF_OBJECT) != 0) | |
5802 | type = STT_OBJECT; | |
5803 | else | |
5804 | type = STT_NOTYPE; | |
252b5132 | 5805 | |
13ae64f3 JJ |
5806 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
5807 | type = STT_TLS; | |
5808 | ||
589e6347 | 5809 | /* Processor-specific types. */ |
079e9a2f AM |
5810 | if (type_ptr != NULL |
5811 | && bed->elf_backend_get_symbol_type) | |
5812 | type = ((*bed->elf_backend_get_symbol_type) | |
5813 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 5814 | |
079e9a2f AM |
5815 | if (flags & BSF_SECTION_SYM) |
5816 | { | |
5817 | if (flags & BSF_GLOBAL) | |
5818 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
5819 | else | |
5820 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
5821 | } | |
5822 | else if (bfd_is_com_section (syms[idx]->section)) | |
5823 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
5824 | else if (bfd_is_und_section (syms[idx]->section)) | |
5825 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
5826 | ? STB_WEAK | |
5827 | : STB_GLOBAL), | |
5828 | type); | |
5829 | else if (flags & BSF_FILE) | |
5830 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
5831 | else | |
5832 | { | |
5833 | int bind = STB_LOCAL; | |
252b5132 | 5834 | |
079e9a2f AM |
5835 | if (flags & BSF_LOCAL) |
5836 | bind = STB_LOCAL; | |
5837 | else if (flags & BSF_WEAK) | |
5838 | bind = STB_WEAK; | |
5839 | else if (flags & BSF_GLOBAL) | |
5840 | bind = STB_GLOBAL; | |
252b5132 | 5841 | |
079e9a2f AM |
5842 | sym.st_info = ELF_ST_INFO (bind, type); |
5843 | } | |
252b5132 | 5844 | |
079e9a2f AM |
5845 | if (type_ptr != NULL) |
5846 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
5847 | else | |
5848 | sym.st_other = 0; | |
252b5132 | 5849 | |
9ad5cbcf | 5850 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 5851 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
5852 | if (outbound_shndx != NULL) |
5853 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 5854 | } |
252b5132 | 5855 | |
079e9a2f AM |
5856 | *sttp = stt; |
5857 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |
5858 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
252b5132 | 5859 | |
079e9a2f AM |
5860 | symstrtab_hdr->sh_flags = 0; |
5861 | symstrtab_hdr->sh_addr = 0; | |
5862 | symstrtab_hdr->sh_entsize = 0; | |
5863 | symstrtab_hdr->sh_link = 0; | |
5864 | symstrtab_hdr->sh_info = 0; | |
5865 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 5866 | |
b34976b6 | 5867 | return TRUE; |
252b5132 RH |
5868 | } |
5869 | ||
5870 | /* Return the number of bytes required to hold the symtab vector. | |
5871 | ||
5872 | Note that we base it on the count plus 1, since we will null terminate | |
5873 | the vector allocated based on this size. However, the ELF symbol table | |
5874 | always has a dummy entry as symbol #0, so it ends up even. */ | |
5875 | ||
5876 | long | |
217aa764 | 5877 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
5878 | { |
5879 | long symcount; | |
5880 | long symtab_size; | |
5881 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
5882 | ||
5883 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
5884 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
5885 | if (symcount > 0) | |
5886 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
5887 | |
5888 | return symtab_size; | |
5889 | } | |
5890 | ||
5891 | long | |
217aa764 | 5892 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
5893 | { |
5894 | long symcount; | |
5895 | long symtab_size; | |
5896 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
5897 | ||
5898 | if (elf_dynsymtab (abfd) == 0) | |
5899 | { | |
5900 | bfd_set_error (bfd_error_invalid_operation); | |
5901 | return -1; | |
5902 | } | |
5903 | ||
5904 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
5905 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
5906 | if (symcount > 0) | |
5907 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
5908 | |
5909 | return symtab_size; | |
5910 | } | |
5911 | ||
5912 | long | |
217aa764 AM |
5913 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
5914 | sec_ptr asect) | |
252b5132 RH |
5915 | { |
5916 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
5917 | } | |
5918 | ||
5919 | /* Canonicalize the relocs. */ | |
5920 | ||
5921 | long | |
217aa764 AM |
5922 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
5923 | sec_ptr section, | |
5924 | arelent **relptr, | |
5925 | asymbol **symbols) | |
252b5132 RH |
5926 | { |
5927 | arelent *tblptr; | |
5928 | unsigned int i; | |
9c5bfbb7 | 5929 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5930 | |
b34976b6 | 5931 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
5932 | return -1; |
5933 | ||
5934 | tblptr = section->relocation; | |
5935 | for (i = 0; i < section->reloc_count; i++) | |
5936 | *relptr++ = tblptr++; | |
5937 | ||
5938 | *relptr = NULL; | |
5939 | ||
5940 | return section->reloc_count; | |
5941 | } | |
5942 | ||
5943 | long | |
6cee3f79 | 5944 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 5945 | { |
9c5bfbb7 | 5946 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 5947 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
5948 | |
5949 | if (symcount >= 0) | |
5950 | bfd_get_symcount (abfd) = symcount; | |
5951 | return symcount; | |
5952 | } | |
5953 | ||
5954 | long | |
217aa764 AM |
5955 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
5956 | asymbol **allocation) | |
252b5132 | 5957 | { |
9c5bfbb7 | 5958 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 5959 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
5960 | |
5961 | if (symcount >= 0) | |
5962 | bfd_get_dynamic_symcount (abfd) = symcount; | |
5963 | return symcount; | |
252b5132 RH |
5964 | } |
5965 | ||
5966 | /* Return the size required for the dynamic reloc entries. Any | |
5967 | section that was actually installed in the BFD, and has type | |
5968 | SHT_REL or SHT_RELA, and uses the dynamic symbol table, is | |
5969 | considered to be a dynamic reloc section. */ | |
5970 | ||
5971 | long | |
217aa764 | 5972 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
5973 | { |
5974 | long ret; | |
5975 | asection *s; | |
5976 | ||
5977 | if (elf_dynsymtab (abfd) == 0) | |
5978 | { | |
5979 | bfd_set_error (bfd_error_invalid_operation); | |
5980 | return -1; | |
5981 | } | |
5982 | ||
5983 | ret = sizeof (arelent *); | |
5984 | for (s = abfd->sections; s != NULL; s = s->next) | |
5985 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
5986 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL | |
5987 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
eea6121a | 5988 | ret += ((s->size / elf_section_data (s)->this_hdr.sh_entsize) |
252b5132 RH |
5989 | * sizeof (arelent *)); |
5990 | ||
5991 | return ret; | |
5992 | } | |
5993 | ||
5994 | /* Canonicalize the dynamic relocation entries. Note that we return | |
5995 | the dynamic relocations as a single block, although they are | |
5996 | actually associated with particular sections; the interface, which | |
5997 | was designed for SunOS style shared libraries, expects that there | |
5998 | is only one set of dynamic relocs. Any section that was actually | |
5999 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses | |
6000 | the dynamic symbol table, is considered to be a dynamic reloc | |
6001 | section. */ | |
6002 | ||
6003 | long | |
217aa764 AM |
6004 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
6005 | arelent **storage, | |
6006 | asymbol **syms) | |
252b5132 | 6007 | { |
217aa764 | 6008 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
6009 | asection *s; |
6010 | long ret; | |
6011 | ||
6012 | if (elf_dynsymtab (abfd) == 0) | |
6013 | { | |
6014 | bfd_set_error (bfd_error_invalid_operation); | |
6015 | return -1; | |
6016 | } | |
6017 | ||
6018 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
6019 | ret = 0; | |
6020 | for (s = abfd->sections; s != NULL; s = s->next) | |
6021 | { | |
6022 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
6023 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL | |
6024 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
6025 | { | |
6026 | arelent *p; | |
6027 | long count, i; | |
6028 | ||
b34976b6 | 6029 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 6030 | return -1; |
eea6121a | 6031 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
6032 | p = s->relocation; |
6033 | for (i = 0; i < count; i++) | |
6034 | *storage++ = p++; | |
6035 | ret += count; | |
6036 | } | |
6037 | } | |
6038 | ||
6039 | *storage = NULL; | |
6040 | ||
6041 | return ret; | |
6042 | } | |
6043 | \f | |
6044 | /* Read in the version information. */ | |
6045 | ||
b34976b6 | 6046 | bfd_boolean |
fc0e6df6 | 6047 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
6048 | { |
6049 | bfd_byte *contents = NULL; | |
dc810e39 | 6050 | bfd_size_type amt; |
fc0e6df6 PB |
6051 | unsigned int freeidx = 0; |
6052 | ||
6053 | if (elf_dynverref (abfd) != 0) | |
6054 | { | |
6055 | Elf_Internal_Shdr *hdr; | |
6056 | Elf_External_Verneed *everneed; | |
6057 | Elf_Internal_Verneed *iverneed; | |
6058 | unsigned int i; | |
6059 | ||
6060 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
6061 | ||
6062 | amt = (bfd_size_type) hdr->sh_info * sizeof (Elf_Internal_Verneed); | |
6063 | elf_tdata (abfd)->verref = bfd_zalloc (abfd, amt); | |
6064 | if (elf_tdata (abfd)->verref == NULL) | |
6065 | goto error_return; | |
6066 | ||
6067 | elf_tdata (abfd)->cverrefs = hdr->sh_info; | |
6068 | ||
6069 | contents = bfd_malloc (hdr->sh_size); | |
6070 | if (contents == NULL) | |
6071 | goto error_return; | |
6072 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
6073 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
6074 | goto error_return; | |
6075 | ||
6076 | everneed = (Elf_External_Verneed *) contents; | |
6077 | iverneed = elf_tdata (abfd)->verref; | |
6078 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
6079 | { | |
6080 | Elf_External_Vernaux *evernaux; | |
6081 | Elf_Internal_Vernaux *ivernaux; | |
6082 | unsigned int j; | |
6083 | ||
6084 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
6085 | ||
6086 | iverneed->vn_bfd = abfd; | |
6087 | ||
6088 | iverneed->vn_filename = | |
6089 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
6090 | iverneed->vn_file); | |
6091 | if (iverneed->vn_filename == NULL) | |
6092 | goto error_return; | |
6093 | ||
6094 | amt = iverneed->vn_cnt; | |
6095 | amt *= sizeof (Elf_Internal_Vernaux); | |
6096 | iverneed->vn_auxptr = bfd_alloc (abfd, amt); | |
6097 | ||
6098 | evernaux = ((Elf_External_Vernaux *) | |
6099 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
6100 | ivernaux = iverneed->vn_auxptr; | |
6101 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
6102 | { | |
6103 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
6104 | ||
6105 | ivernaux->vna_nodename = | |
6106 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
6107 | ivernaux->vna_name); | |
6108 | if (ivernaux->vna_nodename == NULL) | |
6109 | goto error_return; | |
6110 | ||
6111 | if (j + 1 < iverneed->vn_cnt) | |
6112 | ivernaux->vna_nextptr = ivernaux + 1; | |
6113 | else | |
6114 | ivernaux->vna_nextptr = NULL; | |
6115 | ||
6116 | evernaux = ((Elf_External_Vernaux *) | |
6117 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
6118 | ||
6119 | if (ivernaux->vna_other > freeidx) | |
6120 | freeidx = ivernaux->vna_other; | |
6121 | } | |
6122 | ||
6123 | if (i + 1 < hdr->sh_info) | |
6124 | iverneed->vn_nextref = iverneed + 1; | |
6125 | else | |
6126 | iverneed->vn_nextref = NULL; | |
6127 | ||
6128 | everneed = ((Elf_External_Verneed *) | |
6129 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
6130 | } | |
6131 | ||
6132 | free (contents); | |
6133 | contents = NULL; | |
6134 | } | |
252b5132 RH |
6135 | |
6136 | if (elf_dynverdef (abfd) != 0) | |
6137 | { | |
6138 | Elf_Internal_Shdr *hdr; | |
6139 | Elf_External_Verdef *everdef; | |
6140 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
6141 | Elf_Internal_Verdef *iverdefarr; |
6142 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 6143 | unsigned int i; |
062e2358 | 6144 | unsigned int maxidx; |
252b5132 RH |
6145 | |
6146 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
6147 | ||
217aa764 | 6148 | contents = bfd_malloc (hdr->sh_size); |
252b5132 RH |
6149 | if (contents == NULL) |
6150 | goto error_return; | |
6151 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
217aa764 | 6152 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
6153 | goto error_return; |
6154 | ||
f631889e UD |
6155 | /* We know the number of entries in the section but not the maximum |
6156 | index. Therefore we have to run through all entries and find | |
6157 | the maximum. */ | |
252b5132 | 6158 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
6159 | maxidx = 0; |
6160 | for (i = 0; i < hdr->sh_info; ++i) | |
6161 | { | |
6162 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
6163 | ||
062e2358 AM |
6164 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
6165 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e UD |
6166 | |
6167 | everdef = ((Elf_External_Verdef *) | |
6168 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
6169 | } | |
6170 | ||
fc0e6df6 PB |
6171 | if (default_imported_symver) |
6172 | { | |
6173 | if (freeidx > maxidx) | |
6174 | maxidx = ++freeidx; | |
6175 | else | |
6176 | freeidx = ++maxidx; | |
6177 | } | |
dc810e39 | 6178 | amt = (bfd_size_type) maxidx * sizeof (Elf_Internal_Verdef); |
217aa764 | 6179 | elf_tdata (abfd)->verdef = bfd_zalloc (abfd, amt); |
f631889e UD |
6180 | if (elf_tdata (abfd)->verdef == NULL) |
6181 | goto error_return; | |
6182 | ||
6183 | elf_tdata (abfd)->cverdefs = maxidx; | |
6184 | ||
6185 | everdef = (Elf_External_Verdef *) contents; | |
6186 | iverdefarr = elf_tdata (abfd)->verdef; | |
6187 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
6188 | { |
6189 | Elf_External_Verdaux *everdaux; | |
6190 | Elf_Internal_Verdaux *iverdaux; | |
6191 | unsigned int j; | |
6192 | ||
f631889e UD |
6193 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
6194 | ||
6195 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; | |
6196 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
6197 | |
6198 | iverdef->vd_bfd = abfd; | |
6199 | ||
dc810e39 | 6200 | amt = (bfd_size_type) iverdef->vd_cnt * sizeof (Elf_Internal_Verdaux); |
217aa764 | 6201 | iverdef->vd_auxptr = bfd_alloc (abfd, amt); |
252b5132 RH |
6202 | if (iverdef->vd_auxptr == NULL) |
6203 | goto error_return; | |
6204 | ||
6205 | everdaux = ((Elf_External_Verdaux *) | |
6206 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
6207 | iverdaux = iverdef->vd_auxptr; | |
6208 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
6209 | { | |
6210 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
6211 | ||
6212 | iverdaux->vda_nodename = | |
6213 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
6214 | iverdaux->vda_name); | |
6215 | if (iverdaux->vda_nodename == NULL) | |
6216 | goto error_return; | |
6217 | ||
6218 | if (j + 1 < iverdef->vd_cnt) | |
6219 | iverdaux->vda_nextptr = iverdaux + 1; | |
6220 | else | |
6221 | iverdaux->vda_nextptr = NULL; | |
6222 | ||
6223 | everdaux = ((Elf_External_Verdaux *) | |
6224 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
6225 | } | |
6226 | ||
6227 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
6228 | ||
6229 | if (i + 1 < hdr->sh_info) | |
6230 | iverdef->vd_nextdef = iverdef + 1; | |
6231 | else | |
6232 | iverdef->vd_nextdef = NULL; | |
6233 | ||
6234 | everdef = ((Elf_External_Verdef *) | |
6235 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
6236 | } | |
6237 | ||
6238 | free (contents); | |
6239 | contents = NULL; | |
6240 | } | |
fc0e6df6 | 6241 | else if (default_imported_symver) |
252b5132 | 6242 | { |
fc0e6df6 PB |
6243 | if (freeidx < 3) |
6244 | freeidx = 3; | |
6245 | else | |
6246 | freeidx++; | |
252b5132 | 6247 | |
fc0e6df6 PB |
6248 | amt = (bfd_size_type) freeidx * sizeof (Elf_Internal_Verdef); |
6249 | elf_tdata (abfd)->verdef = bfd_zalloc (abfd, amt); | |
6250 | if (elf_tdata (abfd)->verdef == NULL) | |
252b5132 RH |
6251 | goto error_return; |
6252 | ||
fc0e6df6 PB |
6253 | elf_tdata (abfd)->cverdefs = freeidx; |
6254 | } | |
252b5132 | 6255 | |
fc0e6df6 PB |
6256 | /* Create a default version based on the soname. */ |
6257 | if (default_imported_symver) | |
6258 | { | |
6259 | Elf_Internal_Verdef *iverdef; | |
6260 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 6261 | |
fc0e6df6 | 6262 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1];; |
252b5132 | 6263 | |
fc0e6df6 PB |
6264 | iverdef->vd_version = VER_DEF_CURRENT; |
6265 | iverdef->vd_flags = 0; | |
6266 | iverdef->vd_ndx = freeidx; | |
6267 | iverdef->vd_cnt = 1; | |
252b5132 | 6268 | |
fc0e6df6 | 6269 | iverdef->vd_bfd = abfd; |
252b5132 | 6270 | |
fc0e6df6 PB |
6271 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
6272 | if (iverdef->vd_nodename == NULL) | |
6273 | goto error_return; | |
6274 | iverdef->vd_nextdef = NULL; | |
6275 | amt = (bfd_size_type) sizeof (Elf_Internal_Verdaux); | |
6276 | iverdef->vd_auxptr = bfd_alloc (abfd, amt); | |
252b5132 | 6277 | |
fc0e6df6 PB |
6278 | iverdaux = iverdef->vd_auxptr; |
6279 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
6280 | iverdaux->vda_nextptr = NULL; | |
252b5132 RH |
6281 | } |
6282 | ||
b34976b6 | 6283 | return TRUE; |
252b5132 RH |
6284 | |
6285 | error_return: | |
5ed6aba4 | 6286 | if (contents != NULL) |
252b5132 | 6287 | free (contents); |
b34976b6 | 6288 | return FALSE; |
252b5132 RH |
6289 | } |
6290 | \f | |
6291 | asymbol * | |
217aa764 | 6292 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
6293 | { |
6294 | elf_symbol_type *newsym; | |
dc810e39 | 6295 | bfd_size_type amt = sizeof (elf_symbol_type); |
252b5132 | 6296 | |
217aa764 | 6297 | newsym = bfd_zalloc (abfd, amt); |
252b5132 RH |
6298 | if (!newsym) |
6299 | return NULL; | |
6300 | else | |
6301 | { | |
6302 | newsym->symbol.the_bfd = abfd; | |
6303 | return &newsym->symbol; | |
6304 | } | |
6305 | } | |
6306 | ||
6307 | void | |
217aa764 AM |
6308 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
6309 | asymbol *symbol, | |
6310 | symbol_info *ret) | |
252b5132 RH |
6311 | { |
6312 | bfd_symbol_info (symbol, ret); | |
6313 | } | |
6314 | ||
6315 | /* Return whether a symbol name implies a local symbol. Most targets | |
6316 | use this function for the is_local_label_name entry point, but some | |
6317 | override it. */ | |
6318 | ||
b34976b6 | 6319 | bfd_boolean |
217aa764 AM |
6320 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
6321 | const char *name) | |
252b5132 RH |
6322 | { |
6323 | /* Normal local symbols start with ``.L''. */ | |
6324 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 6325 | return TRUE; |
252b5132 RH |
6326 | |
6327 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
6328 | DWARF debugging symbols starting with ``..''. */ | |
6329 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 6330 | return TRUE; |
252b5132 RH |
6331 | |
6332 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
6333 | emitting DWARF debugging output. I suspect this is actually a | |
6334 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
6335 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
6336 | underscore to be emitted on some ELF targets). For ease of use, | |
6337 | we treat such symbols as local. */ | |
6338 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 6339 | return TRUE; |
252b5132 | 6340 | |
b34976b6 | 6341 | return FALSE; |
252b5132 RH |
6342 | } |
6343 | ||
6344 | alent * | |
217aa764 AM |
6345 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
6346 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
6347 | { |
6348 | abort (); | |
6349 | return NULL; | |
6350 | } | |
6351 | ||
b34976b6 | 6352 | bfd_boolean |
217aa764 AM |
6353 | _bfd_elf_set_arch_mach (bfd *abfd, |
6354 | enum bfd_architecture arch, | |
6355 | unsigned long machine) | |
252b5132 RH |
6356 | { |
6357 | /* If this isn't the right architecture for this backend, and this | |
6358 | isn't the generic backend, fail. */ | |
6359 | if (arch != get_elf_backend_data (abfd)->arch | |
6360 | && arch != bfd_arch_unknown | |
6361 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 6362 | return FALSE; |
252b5132 RH |
6363 | |
6364 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
6365 | } | |
6366 | ||
d1fad7c6 NC |
6367 | /* Find the function to a particular section and offset, |
6368 | for error reporting. */ | |
252b5132 | 6369 | |
b34976b6 | 6370 | static bfd_boolean |
217aa764 AM |
6371 | elf_find_function (bfd *abfd ATTRIBUTE_UNUSED, |
6372 | asection *section, | |
6373 | asymbol **symbols, | |
6374 | bfd_vma offset, | |
6375 | const char **filename_ptr, | |
6376 | const char **functionname_ptr) | |
252b5132 | 6377 | { |
252b5132 RH |
6378 | const char *filename; |
6379 | asymbol *func; | |
6380 | bfd_vma low_func; | |
6381 | asymbol **p; | |
6382 | ||
252b5132 RH |
6383 | filename = NULL; |
6384 | func = NULL; | |
6385 | low_func = 0; | |
6386 | ||
6387 | for (p = symbols; *p != NULL; p++) | |
6388 | { | |
6389 | elf_symbol_type *q; | |
6390 | ||
6391 | q = (elf_symbol_type *) *p; | |
6392 | ||
252b5132 RH |
6393 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)) |
6394 | { | |
6395 | default: | |
6396 | break; | |
6397 | case STT_FILE: | |
6398 | filename = bfd_asymbol_name (&q->symbol); | |
6399 | break; | |
6400 | case STT_NOTYPE: | |
6401 | case STT_FUNC: | |
6b40fcba | 6402 | if (bfd_get_section (&q->symbol) == section |
252b5132 RH |
6403 | && q->symbol.value >= low_func |
6404 | && q->symbol.value <= offset) | |
6405 | { | |
6406 | func = (asymbol *) q; | |
6407 | low_func = q->symbol.value; | |
6408 | } | |
6409 | break; | |
6410 | } | |
6411 | } | |
6412 | ||
6413 | if (func == NULL) | |
b34976b6 | 6414 | return FALSE; |
252b5132 | 6415 | |
d1fad7c6 NC |
6416 | if (filename_ptr) |
6417 | *filename_ptr = filename; | |
6418 | if (functionname_ptr) | |
6419 | *functionname_ptr = bfd_asymbol_name (func); | |
6420 | ||
b34976b6 | 6421 | return TRUE; |
d1fad7c6 NC |
6422 | } |
6423 | ||
6424 | /* Find the nearest line to a particular section and offset, | |
6425 | for error reporting. */ | |
6426 | ||
b34976b6 | 6427 | bfd_boolean |
217aa764 AM |
6428 | _bfd_elf_find_nearest_line (bfd *abfd, |
6429 | asection *section, | |
6430 | asymbol **symbols, | |
6431 | bfd_vma offset, | |
6432 | const char **filename_ptr, | |
6433 | const char **functionname_ptr, | |
6434 | unsigned int *line_ptr) | |
d1fad7c6 | 6435 | { |
b34976b6 | 6436 | bfd_boolean found; |
d1fad7c6 NC |
6437 | |
6438 | if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
6439 | filename_ptr, functionname_ptr, |
6440 | line_ptr)) | |
d1fad7c6 NC |
6441 | { |
6442 | if (!*functionname_ptr) | |
4e8a9624 AM |
6443 | elf_find_function (abfd, section, symbols, offset, |
6444 | *filename_ptr ? NULL : filename_ptr, | |
6445 | functionname_ptr); | |
6446 | ||
b34976b6 | 6447 | return TRUE; |
d1fad7c6 NC |
6448 | } |
6449 | ||
6450 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
6451 | filename_ptr, functionname_ptr, |
6452 | line_ptr, 0, | |
6453 | &elf_tdata (abfd)->dwarf2_find_line_info)) | |
d1fad7c6 NC |
6454 | { |
6455 | if (!*functionname_ptr) | |
4e8a9624 AM |
6456 | elf_find_function (abfd, section, symbols, offset, |
6457 | *filename_ptr ? NULL : filename_ptr, | |
6458 | functionname_ptr); | |
6459 | ||
b34976b6 | 6460 | return TRUE; |
d1fad7c6 NC |
6461 | } |
6462 | ||
6463 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
6464 | &found, filename_ptr, |
6465 | functionname_ptr, line_ptr, | |
6466 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 6467 | return FALSE; |
dc43ada5 | 6468 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 6469 | return TRUE; |
d1fad7c6 NC |
6470 | |
6471 | if (symbols == NULL) | |
b34976b6 | 6472 | return FALSE; |
d1fad7c6 NC |
6473 | |
6474 | if (! elf_find_function (abfd, section, symbols, offset, | |
4e8a9624 | 6475 | filename_ptr, functionname_ptr)) |
b34976b6 | 6476 | return FALSE; |
d1fad7c6 | 6477 | |
252b5132 | 6478 | *line_ptr = 0; |
b34976b6 | 6479 | return TRUE; |
252b5132 RH |
6480 | } |
6481 | ||
6482 | int | |
217aa764 | 6483 | _bfd_elf_sizeof_headers (bfd *abfd, bfd_boolean reloc) |
252b5132 RH |
6484 | { |
6485 | int ret; | |
6486 | ||
6487 | ret = get_elf_backend_data (abfd)->s->sizeof_ehdr; | |
6488 | if (! reloc) | |
6489 | ret += get_program_header_size (abfd); | |
6490 | return ret; | |
6491 | } | |
6492 | ||
b34976b6 | 6493 | bfd_boolean |
217aa764 AM |
6494 | _bfd_elf_set_section_contents (bfd *abfd, |
6495 | sec_ptr section, | |
0f867abe | 6496 | const void *location, |
217aa764 AM |
6497 | file_ptr offset, |
6498 | bfd_size_type count) | |
252b5132 RH |
6499 | { |
6500 | Elf_Internal_Shdr *hdr; | |
dc810e39 | 6501 | bfd_signed_vma pos; |
252b5132 RH |
6502 | |
6503 | if (! abfd->output_has_begun | |
217aa764 | 6504 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6505 | return FALSE; |
252b5132 RH |
6506 | |
6507 | hdr = &elf_section_data (section)->this_hdr; | |
dc810e39 AM |
6508 | pos = hdr->sh_offset + offset; |
6509 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
6510 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 6511 | return FALSE; |
252b5132 | 6512 | |
b34976b6 | 6513 | return TRUE; |
252b5132 RH |
6514 | } |
6515 | ||
6516 | void | |
217aa764 AM |
6517 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
6518 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
6519 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
6520 | { |
6521 | abort (); | |
6522 | } | |
6523 | ||
252b5132 RH |
6524 | /* Try to convert a non-ELF reloc into an ELF one. */ |
6525 | ||
b34976b6 | 6526 | bfd_boolean |
217aa764 | 6527 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 6528 | { |
c044fabd | 6529 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
6530 | |
6531 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
6532 | { | |
6533 | bfd_reloc_code_real_type code; | |
6534 | reloc_howto_type *howto; | |
6535 | ||
6536 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 6537 | equivalent ELF reloc. */ |
252b5132 RH |
6538 | |
6539 | if (areloc->howto->pc_relative) | |
6540 | { | |
6541 | switch (areloc->howto->bitsize) | |
6542 | { | |
6543 | case 8: | |
6544 | code = BFD_RELOC_8_PCREL; | |
6545 | break; | |
6546 | case 12: | |
6547 | code = BFD_RELOC_12_PCREL; | |
6548 | break; | |
6549 | case 16: | |
6550 | code = BFD_RELOC_16_PCREL; | |
6551 | break; | |
6552 | case 24: | |
6553 | code = BFD_RELOC_24_PCREL; | |
6554 | break; | |
6555 | case 32: | |
6556 | code = BFD_RELOC_32_PCREL; | |
6557 | break; | |
6558 | case 64: | |
6559 | code = BFD_RELOC_64_PCREL; | |
6560 | break; | |
6561 | default: | |
6562 | goto fail; | |
6563 | } | |
6564 | ||
6565 | howto = bfd_reloc_type_lookup (abfd, code); | |
6566 | ||
6567 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
6568 | { | |
6569 | if (howto->pcrel_offset) | |
6570 | areloc->addend += areloc->address; | |
6571 | else | |
6572 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
6573 | } | |
6574 | } | |
6575 | else | |
6576 | { | |
6577 | switch (areloc->howto->bitsize) | |
6578 | { | |
6579 | case 8: | |
6580 | code = BFD_RELOC_8; | |
6581 | break; | |
6582 | case 14: | |
6583 | code = BFD_RELOC_14; | |
6584 | break; | |
6585 | case 16: | |
6586 | code = BFD_RELOC_16; | |
6587 | break; | |
6588 | case 26: | |
6589 | code = BFD_RELOC_26; | |
6590 | break; | |
6591 | case 32: | |
6592 | code = BFD_RELOC_32; | |
6593 | break; | |
6594 | case 64: | |
6595 | code = BFD_RELOC_64; | |
6596 | break; | |
6597 | default: | |
6598 | goto fail; | |
6599 | } | |
6600 | ||
6601 | howto = bfd_reloc_type_lookup (abfd, code); | |
6602 | } | |
6603 | ||
6604 | if (howto) | |
6605 | areloc->howto = howto; | |
6606 | else | |
6607 | goto fail; | |
6608 | } | |
6609 | ||
b34976b6 | 6610 | return TRUE; |
252b5132 RH |
6611 | |
6612 | fail: | |
6613 | (*_bfd_error_handler) | |
d003868e AM |
6614 | (_("%B: unsupported relocation type %s"), |
6615 | abfd, areloc->howto->name); | |
252b5132 | 6616 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 6617 | return FALSE; |
252b5132 RH |
6618 | } |
6619 | ||
b34976b6 | 6620 | bfd_boolean |
217aa764 | 6621 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 RH |
6622 | { |
6623 | if (bfd_get_format (abfd) == bfd_object) | |
6624 | { | |
6625 | if (elf_shstrtab (abfd) != NULL) | |
2b0f7ef9 | 6626 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
252b5132 RH |
6627 | } |
6628 | ||
6629 | return _bfd_generic_close_and_cleanup (abfd); | |
6630 | } | |
6631 | ||
6632 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
6633 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
6634 | range-checking to interfere. There is nothing else to do in processing | |
6635 | this reloc. */ | |
6636 | ||
6637 | bfd_reloc_status_type | |
217aa764 AM |
6638 | _bfd_elf_rel_vtable_reloc_fn |
6639 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 6640 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
6641 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
6642 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
6643 | { |
6644 | return bfd_reloc_ok; | |
6645 | } | |
252b5132 RH |
6646 | \f |
6647 | /* Elf core file support. Much of this only works on native | |
6648 | toolchains, since we rely on knowing the | |
6649 | machine-dependent procfs structure in order to pick | |
c044fabd | 6650 | out details about the corefile. */ |
252b5132 RH |
6651 | |
6652 | #ifdef HAVE_SYS_PROCFS_H | |
6653 | # include <sys/procfs.h> | |
6654 | #endif | |
6655 | ||
c044fabd | 6656 | /* FIXME: this is kinda wrong, but it's what gdb wants. */ |
252b5132 RH |
6657 | |
6658 | static int | |
217aa764 | 6659 | elfcore_make_pid (bfd *abfd) |
252b5132 RH |
6660 | { |
6661 | return ((elf_tdata (abfd)->core_lwpid << 16) | |
6662 | + (elf_tdata (abfd)->core_pid)); | |
6663 | } | |
6664 | ||
252b5132 RH |
6665 | /* If there isn't a section called NAME, make one, using |
6666 | data from SECT. Note, this function will generate a | |
6667 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 6668 | overwrite it. */ |
252b5132 | 6669 | |
b34976b6 | 6670 | static bfd_boolean |
217aa764 | 6671 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 6672 | { |
c044fabd | 6673 | asection *sect2; |
252b5132 RH |
6674 | |
6675 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 6676 | return TRUE; |
252b5132 RH |
6677 | |
6678 | sect2 = bfd_make_section (abfd, name); | |
6679 | if (sect2 == NULL) | |
b34976b6 | 6680 | return FALSE; |
252b5132 | 6681 | |
eea6121a | 6682 | sect2->size = sect->size; |
252b5132 RH |
6683 | sect2->filepos = sect->filepos; |
6684 | sect2->flags = sect->flags; | |
6685 | sect2->alignment_power = sect->alignment_power; | |
b34976b6 | 6686 | return TRUE; |
252b5132 RH |
6687 | } |
6688 | ||
bb0082d6 AM |
6689 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
6690 | actually creates up to two pseudosections: | |
6691 | - For the single-threaded case, a section named NAME, unless | |
6692 | such a section already exists. | |
6693 | - For the multi-threaded case, a section named "NAME/PID", where | |
6694 | PID is elfcore_make_pid (abfd). | |
6695 | Both pseudosections have identical contents. */ | |
b34976b6 | 6696 | bfd_boolean |
217aa764 AM |
6697 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
6698 | char *name, | |
6699 | size_t size, | |
6700 | ufile_ptr filepos) | |
bb0082d6 AM |
6701 | { |
6702 | char buf[100]; | |
6703 | char *threaded_name; | |
d4c88bbb | 6704 | size_t len; |
bb0082d6 AM |
6705 | asection *sect; |
6706 | ||
6707 | /* Build the section name. */ | |
6708 | ||
6709 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 6710 | len = strlen (buf) + 1; |
217aa764 | 6711 | threaded_name = bfd_alloc (abfd, len); |
bb0082d6 | 6712 | if (threaded_name == NULL) |
b34976b6 | 6713 | return FALSE; |
d4c88bbb | 6714 | memcpy (threaded_name, buf, len); |
bb0082d6 | 6715 | |
62f3bb11 | 6716 | sect = bfd_make_section_anyway (abfd, threaded_name); |
bb0082d6 | 6717 | if (sect == NULL) |
b34976b6 | 6718 | return FALSE; |
eea6121a | 6719 | sect->size = size; |
bb0082d6 AM |
6720 | sect->filepos = filepos; |
6721 | sect->flags = SEC_HAS_CONTENTS; | |
6722 | sect->alignment_power = 2; | |
6723 | ||
936e320b | 6724 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
6725 | } |
6726 | ||
252b5132 | 6727 | /* prstatus_t exists on: |
4a938328 | 6728 | solaris 2.5+ |
252b5132 RH |
6729 | linux 2.[01] + glibc |
6730 | unixware 4.2 | |
6731 | */ | |
6732 | ||
6733 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 6734 | |
b34976b6 | 6735 | static bfd_boolean |
217aa764 | 6736 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 6737 | { |
eea6121a | 6738 | size_t size; |
7ee38065 | 6739 | int offset; |
252b5132 | 6740 | |
4a938328 MS |
6741 | if (note->descsz == sizeof (prstatus_t)) |
6742 | { | |
6743 | prstatus_t prstat; | |
252b5132 | 6744 | |
eea6121a | 6745 | size = sizeof (prstat.pr_reg); |
7ee38065 | 6746 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 6747 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 6748 | |
fa49d224 NC |
6749 | /* Do not overwrite the core signal if it |
6750 | has already been set by another thread. */ | |
6751 | if (elf_tdata (abfd)->core_signal == 0) | |
6752 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
4a938328 | 6753 | elf_tdata (abfd)->core_pid = prstat.pr_pid; |
252b5132 | 6754 | |
4a938328 MS |
6755 | /* pr_who exists on: |
6756 | solaris 2.5+ | |
6757 | unixware 4.2 | |
6758 | pr_who doesn't exist on: | |
6759 | linux 2.[01] | |
6760 | */ | |
252b5132 | 6761 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
4a938328 | 6762 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
252b5132 | 6763 | #endif |
4a938328 | 6764 | } |
7ee38065 | 6765 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
6766 | else if (note->descsz == sizeof (prstatus32_t)) |
6767 | { | |
6768 | /* 64-bit host, 32-bit corefile */ | |
6769 | prstatus32_t prstat; | |
6770 | ||
eea6121a | 6771 | size = sizeof (prstat.pr_reg); |
7ee38065 | 6772 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
6773 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
6774 | ||
fa49d224 NC |
6775 | /* Do not overwrite the core signal if it |
6776 | has already been set by another thread. */ | |
6777 | if (elf_tdata (abfd)->core_signal == 0) | |
6778 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
4a938328 MS |
6779 | elf_tdata (abfd)->core_pid = prstat.pr_pid; |
6780 | ||
6781 | /* pr_who exists on: | |
6782 | solaris 2.5+ | |
6783 | unixware 4.2 | |
6784 | pr_who doesn't exist on: | |
6785 | linux 2.[01] | |
6786 | */ | |
7ee38065 | 6787 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
4a938328 MS |
6788 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
6789 | #endif | |
6790 | } | |
7ee38065 | 6791 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
6792 | else |
6793 | { | |
6794 | /* Fail - we don't know how to handle any other | |
6795 | note size (ie. data object type). */ | |
b34976b6 | 6796 | return TRUE; |
4a938328 | 6797 | } |
252b5132 | 6798 | |
bb0082d6 | 6799 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 6800 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 6801 | size, note->descpos + offset); |
252b5132 RH |
6802 | } |
6803 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
6804 | ||
bb0082d6 | 6805 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 6806 | static bfd_boolean |
217aa764 AM |
6807 | elfcore_make_note_pseudosection (bfd *abfd, |
6808 | char *name, | |
6809 | Elf_Internal_Note *note) | |
252b5132 | 6810 | { |
936e320b AM |
6811 | return _bfd_elfcore_make_pseudosection (abfd, name, |
6812 | note->descsz, note->descpos); | |
252b5132 RH |
6813 | } |
6814 | ||
ff08c6bb JB |
6815 | /* There isn't a consistent prfpregset_t across platforms, |
6816 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
6817 | data structure apart. */ |
6818 | ||
b34976b6 | 6819 | static bfd_boolean |
217aa764 | 6820 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
6821 | { |
6822 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
6823 | } | |
6824 | ||
ff08c6bb JB |
6825 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
6826 | type of 5 (NT_PRXFPREG). Just include the whole note's contents | |
6827 | literally. */ | |
c044fabd | 6828 | |
b34976b6 | 6829 | static bfd_boolean |
217aa764 | 6830 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
6831 | { |
6832 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
6833 | } | |
6834 | ||
252b5132 | 6835 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 6836 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 6837 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
6838 | typedef prpsinfo32_t elfcore_psinfo32_t; |
6839 | #endif | |
252b5132 RH |
6840 | #endif |
6841 | ||
6842 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 6843 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 6844 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
6845 | typedef psinfo32_t elfcore_psinfo32_t; |
6846 | #endif | |
252b5132 RH |
6847 | #endif |
6848 | ||
252b5132 RH |
6849 | /* return a malloc'ed copy of a string at START which is at |
6850 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 6851 | the copy will always have a terminating '\0'. */ |
252b5132 | 6852 | |
936e320b | 6853 | char * |
217aa764 | 6854 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 6855 | { |
dc810e39 | 6856 | char *dups; |
c044fabd | 6857 | char *end = memchr (start, '\0', max); |
dc810e39 | 6858 | size_t len; |
252b5132 RH |
6859 | |
6860 | if (end == NULL) | |
6861 | len = max; | |
6862 | else | |
6863 | len = end - start; | |
6864 | ||
217aa764 | 6865 | dups = bfd_alloc (abfd, len + 1); |
dc810e39 | 6866 | if (dups == NULL) |
252b5132 RH |
6867 | return NULL; |
6868 | ||
dc810e39 AM |
6869 | memcpy (dups, start, len); |
6870 | dups[len] = '\0'; | |
252b5132 | 6871 | |
dc810e39 | 6872 | return dups; |
252b5132 RH |
6873 | } |
6874 | ||
bb0082d6 | 6875 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 6876 | static bfd_boolean |
217aa764 | 6877 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 6878 | { |
4a938328 MS |
6879 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
6880 | { | |
6881 | elfcore_psinfo_t psinfo; | |
252b5132 | 6882 | |
7ee38065 | 6883 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 6884 | |
4a938328 | 6885 | elf_tdata (abfd)->core_program |
936e320b AM |
6886 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
6887 | sizeof (psinfo.pr_fname)); | |
252b5132 | 6888 | |
4a938328 | 6889 | elf_tdata (abfd)->core_command |
936e320b AM |
6890 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
6891 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 6892 | } |
7ee38065 | 6893 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
6894 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
6895 | { | |
6896 | /* 64-bit host, 32-bit corefile */ | |
6897 | elfcore_psinfo32_t psinfo; | |
6898 | ||
7ee38065 | 6899 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 6900 | |
4a938328 | 6901 | elf_tdata (abfd)->core_program |
936e320b AM |
6902 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
6903 | sizeof (psinfo.pr_fname)); | |
4a938328 MS |
6904 | |
6905 | elf_tdata (abfd)->core_command | |
936e320b AM |
6906 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
6907 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
6908 | } |
6909 | #endif | |
6910 | ||
6911 | else | |
6912 | { | |
6913 | /* Fail - we don't know how to handle any other | |
6914 | note size (ie. data object type). */ | |
b34976b6 | 6915 | return TRUE; |
4a938328 | 6916 | } |
252b5132 RH |
6917 | |
6918 | /* Note that for some reason, a spurious space is tacked | |
6919 | onto the end of the args in some (at least one anyway) | |
c044fabd | 6920 | implementations, so strip it off if it exists. */ |
252b5132 RH |
6921 | |
6922 | { | |
c044fabd | 6923 | char *command = elf_tdata (abfd)->core_command; |
252b5132 RH |
6924 | int n = strlen (command); |
6925 | ||
6926 | if (0 < n && command[n - 1] == ' ') | |
6927 | command[n - 1] = '\0'; | |
6928 | } | |
6929 | ||
b34976b6 | 6930 | return TRUE; |
252b5132 RH |
6931 | } |
6932 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
6933 | ||
252b5132 | 6934 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 6935 | static bfd_boolean |
217aa764 | 6936 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 6937 | { |
f572a39d AM |
6938 | if (note->descsz == sizeof (pstatus_t) |
6939 | #if defined (HAVE_PXSTATUS_T) | |
6940 | || note->descsz == sizeof (pxstatus_t) | |
6941 | #endif | |
6942 | ) | |
4a938328 MS |
6943 | { |
6944 | pstatus_t pstat; | |
252b5132 | 6945 | |
4a938328 | 6946 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 6947 | |
4a938328 MS |
6948 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
6949 | } | |
7ee38065 | 6950 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
6951 | else if (note->descsz == sizeof (pstatus32_t)) |
6952 | { | |
6953 | /* 64-bit host, 32-bit corefile */ | |
6954 | pstatus32_t pstat; | |
252b5132 | 6955 | |
4a938328 | 6956 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 6957 | |
4a938328 MS |
6958 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
6959 | } | |
6960 | #endif | |
252b5132 RH |
6961 | /* Could grab some more details from the "representative" |
6962 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 6963 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 6964 | |
b34976b6 | 6965 | return TRUE; |
252b5132 RH |
6966 | } |
6967 | #endif /* defined (HAVE_PSTATUS_T) */ | |
6968 | ||
252b5132 | 6969 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 6970 | static bfd_boolean |
217aa764 | 6971 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
6972 | { |
6973 | lwpstatus_t lwpstat; | |
6974 | char buf[100]; | |
c044fabd | 6975 | char *name; |
d4c88bbb | 6976 | size_t len; |
c044fabd | 6977 | asection *sect; |
252b5132 | 6978 | |
f572a39d AM |
6979 | if (note->descsz != sizeof (lwpstat) |
6980 | #if defined (HAVE_LWPXSTATUS_T) | |
6981 | && note->descsz != sizeof (lwpxstatus_t) | |
6982 | #endif | |
6983 | ) | |
b34976b6 | 6984 | return TRUE; |
252b5132 RH |
6985 | |
6986 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
6987 | ||
6988 | elf_tdata (abfd)->core_lwpid = lwpstat.pr_lwpid; | |
6989 | elf_tdata (abfd)->core_signal = lwpstat.pr_cursig; | |
6990 | ||
c044fabd | 6991 | /* Make a ".reg/999" section. */ |
252b5132 RH |
6992 | |
6993 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 6994 | len = strlen (buf) + 1; |
217aa764 | 6995 | name = bfd_alloc (abfd, len); |
252b5132 | 6996 | if (name == NULL) |
b34976b6 | 6997 | return FALSE; |
d4c88bbb | 6998 | memcpy (name, buf, len); |
252b5132 | 6999 | |
62f3bb11 | 7000 | sect = bfd_make_section_anyway (abfd, name); |
252b5132 | 7001 | if (sect == NULL) |
b34976b6 | 7002 | return FALSE; |
252b5132 RH |
7003 | |
7004 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 7005 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
7006 | sect->filepos = note->descpos |
7007 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
7008 | #endif | |
7009 | ||
7010 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 7011 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
7012 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
7013 | #endif | |
7014 | ||
7015 | sect->flags = SEC_HAS_CONTENTS; | |
7016 | sect->alignment_power = 2; | |
7017 | ||
7018 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 7019 | return FALSE; |
252b5132 RH |
7020 | |
7021 | /* Make a ".reg2/999" section */ | |
7022 | ||
7023 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 7024 | len = strlen (buf) + 1; |
217aa764 | 7025 | name = bfd_alloc (abfd, len); |
252b5132 | 7026 | if (name == NULL) |
b34976b6 | 7027 | return FALSE; |
d4c88bbb | 7028 | memcpy (name, buf, len); |
252b5132 | 7029 | |
62f3bb11 | 7030 | sect = bfd_make_section_anyway (abfd, name); |
252b5132 | 7031 | if (sect == NULL) |
b34976b6 | 7032 | return FALSE; |
252b5132 RH |
7033 | |
7034 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 7035 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
7036 | sect->filepos = note->descpos |
7037 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
7038 | #endif | |
7039 | ||
7040 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 7041 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
7042 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
7043 | #endif | |
7044 | ||
7045 | sect->flags = SEC_HAS_CONTENTS; | |
7046 | sect->alignment_power = 2; | |
7047 | ||
936e320b | 7048 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
7049 | } |
7050 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
7051 | ||
16e9c715 | 7052 | #if defined (HAVE_WIN32_PSTATUS_T) |
b34976b6 | 7053 | static bfd_boolean |
217aa764 | 7054 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
7055 | { |
7056 | char buf[30]; | |
c044fabd | 7057 | char *name; |
d4c88bbb | 7058 | size_t len; |
c044fabd | 7059 | asection *sect; |
16e9c715 NC |
7060 | win32_pstatus_t pstatus; |
7061 | ||
7062 | if (note->descsz < sizeof (pstatus)) | |
b34976b6 | 7063 | return TRUE; |
16e9c715 | 7064 | |
e8eab623 | 7065 | memcpy (&pstatus, note->descdata, sizeof (pstatus)); |
c044fabd KH |
7066 | |
7067 | switch (pstatus.data_type) | |
16e9c715 NC |
7068 | { |
7069 | case NOTE_INFO_PROCESS: | |
7070 | /* FIXME: need to add ->core_command. */ | |
7071 | elf_tdata (abfd)->core_signal = pstatus.data.process_info.signal; | |
7072 | elf_tdata (abfd)->core_pid = pstatus.data.process_info.pid; | |
c044fabd | 7073 | break; |
16e9c715 NC |
7074 | |
7075 | case NOTE_INFO_THREAD: | |
7076 | /* Make a ".reg/999" section. */ | |
7077 | sprintf (buf, ".reg/%d", pstatus.data.thread_info.tid); | |
c044fabd | 7078 | |
d4c88bbb | 7079 | len = strlen (buf) + 1; |
217aa764 | 7080 | name = bfd_alloc (abfd, len); |
16e9c715 | 7081 | if (name == NULL) |
b34976b6 | 7082 | return FALSE; |
c044fabd | 7083 | |
d4c88bbb | 7084 | memcpy (name, buf, len); |
16e9c715 | 7085 | |
62f3bb11 | 7086 | sect = bfd_make_section_anyway (abfd, name); |
16e9c715 | 7087 | if (sect == NULL) |
b34976b6 | 7088 | return FALSE; |
c044fabd | 7089 | |
eea6121a | 7090 | sect->size = sizeof (pstatus.data.thread_info.thread_context); |
079e9a2f AM |
7091 | sect->filepos = (note->descpos |
7092 | + offsetof (struct win32_pstatus, | |
7093 | data.thread_info.thread_context)); | |
16e9c715 NC |
7094 | sect->flags = SEC_HAS_CONTENTS; |
7095 | sect->alignment_power = 2; | |
7096 | ||
7097 | if (pstatus.data.thread_info.is_active_thread) | |
7098 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 7099 | return FALSE; |
16e9c715 NC |
7100 | break; |
7101 | ||
7102 | case NOTE_INFO_MODULE: | |
7103 | /* Make a ".module/xxxxxxxx" section. */ | |
c044fabd KH |
7104 | sprintf (buf, ".module/%08x", pstatus.data.module_info.base_address); |
7105 | ||
d4c88bbb | 7106 | len = strlen (buf) + 1; |
217aa764 | 7107 | name = bfd_alloc (abfd, len); |
16e9c715 | 7108 | if (name == NULL) |
b34976b6 | 7109 | return FALSE; |
c044fabd | 7110 | |
d4c88bbb | 7111 | memcpy (name, buf, len); |
252b5132 | 7112 | |
62f3bb11 | 7113 | sect = bfd_make_section_anyway (abfd, name); |
c044fabd | 7114 | |
16e9c715 | 7115 | if (sect == NULL) |
b34976b6 | 7116 | return FALSE; |
c044fabd | 7117 | |
eea6121a | 7118 | sect->size = note->descsz; |
16e9c715 NC |
7119 | sect->filepos = note->descpos; |
7120 | sect->flags = SEC_HAS_CONTENTS; | |
7121 | sect->alignment_power = 2; | |
7122 | break; | |
7123 | ||
7124 | default: | |
b34976b6 | 7125 | return TRUE; |
16e9c715 NC |
7126 | } |
7127 | ||
b34976b6 | 7128 | return TRUE; |
16e9c715 NC |
7129 | } |
7130 | #endif /* HAVE_WIN32_PSTATUS_T */ | |
252b5132 | 7131 | |
b34976b6 | 7132 | static bfd_boolean |
217aa764 | 7133 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 7134 | { |
9c5bfbb7 | 7135 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 7136 | |
252b5132 RH |
7137 | switch (note->type) |
7138 | { | |
7139 | default: | |
b34976b6 | 7140 | return TRUE; |
252b5132 | 7141 | |
252b5132 | 7142 | case NT_PRSTATUS: |
bb0082d6 AM |
7143 | if (bed->elf_backend_grok_prstatus) |
7144 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 7145 | return TRUE; |
bb0082d6 | 7146 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 7147 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 7148 | #else |
b34976b6 | 7149 | return TRUE; |
252b5132 RH |
7150 | #endif |
7151 | ||
7152 | #if defined (HAVE_PSTATUS_T) | |
7153 | case NT_PSTATUS: | |
7154 | return elfcore_grok_pstatus (abfd, note); | |
7155 | #endif | |
7156 | ||
7157 | #if defined (HAVE_LWPSTATUS_T) | |
7158 | case NT_LWPSTATUS: | |
7159 | return elfcore_grok_lwpstatus (abfd, note); | |
7160 | #endif | |
7161 | ||
7162 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
7163 | return elfcore_grok_prfpreg (abfd, note); | |
7164 | ||
16e9c715 | 7165 | #if defined (HAVE_WIN32_PSTATUS_T) |
c044fabd | 7166 | case NT_WIN32PSTATUS: |
16e9c715 NC |
7167 | return elfcore_grok_win32pstatus (abfd, note); |
7168 | #endif | |
7169 | ||
c044fabd | 7170 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
7171 | if (note->namesz == 6 |
7172 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
7173 | return elfcore_grok_prxfpreg (abfd, note); |
7174 | else | |
b34976b6 | 7175 | return TRUE; |
ff08c6bb | 7176 | |
252b5132 RH |
7177 | case NT_PRPSINFO: |
7178 | case NT_PSINFO: | |
bb0082d6 AM |
7179 | if (bed->elf_backend_grok_psinfo) |
7180 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 7181 | return TRUE; |
bb0082d6 | 7182 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 7183 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 7184 | #else |
b34976b6 | 7185 | return TRUE; |
252b5132 | 7186 | #endif |
3333a7c3 RM |
7187 | |
7188 | case NT_AUXV: | |
7189 | { | |
62f3bb11 | 7190 | asection *sect = bfd_make_section_anyway (abfd, ".auxv"); |
3333a7c3 RM |
7191 | |
7192 | if (sect == NULL) | |
7193 | return FALSE; | |
eea6121a | 7194 | sect->size = note->descsz; |
3333a7c3 RM |
7195 | sect->filepos = note->descpos; |
7196 | sect->flags = SEC_HAS_CONTENTS; | |
7197 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
7198 | ||
7199 | return TRUE; | |
7200 | } | |
252b5132 RH |
7201 | } |
7202 | } | |
7203 | ||
b34976b6 | 7204 | static bfd_boolean |
217aa764 | 7205 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
7206 | { |
7207 | char *cp; | |
7208 | ||
7209 | cp = strchr (note->namedata, '@'); | |
7210 | if (cp != NULL) | |
7211 | { | |
d2b64500 | 7212 | *lwpidp = atoi(cp + 1); |
b34976b6 | 7213 | return TRUE; |
50b2bdb7 | 7214 | } |
b34976b6 | 7215 | return FALSE; |
50b2bdb7 AM |
7216 | } |
7217 | ||
b34976b6 | 7218 | static bfd_boolean |
217aa764 | 7219 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
7220 | { |
7221 | ||
7222 | /* Signal number at offset 0x08. */ | |
7223 | elf_tdata (abfd)->core_signal | |
7224 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); | |
7225 | ||
7226 | /* Process ID at offset 0x50. */ | |
7227 | elf_tdata (abfd)->core_pid | |
7228 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); | |
7229 | ||
7230 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
7231 | elf_tdata (abfd)->core_command | |
7232 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); | |
7233 | ||
7720ba9f MK |
7234 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
7235 | note); | |
50b2bdb7 AM |
7236 | } |
7237 | ||
b34976b6 | 7238 | static bfd_boolean |
217aa764 | 7239 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
7240 | { |
7241 | int lwp; | |
7242 | ||
7243 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
7244 | elf_tdata (abfd)->core_lwpid = lwp; | |
7245 | ||
b4db1224 | 7246 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
7247 | { |
7248 | /* NetBSD-specific core "procinfo". Note that we expect to | |
7249 | find this note before any of the others, which is fine, | |
7250 | since the kernel writes this note out first when it | |
7251 | creates a core file. */ | |
47d9a591 | 7252 | |
50b2bdb7 AM |
7253 | return elfcore_grok_netbsd_procinfo (abfd, note); |
7254 | } | |
7255 | ||
b4db1224 JT |
7256 | /* As of Jan 2002 there are no other machine-independent notes |
7257 | defined for NetBSD core files. If the note type is less | |
7258 | than the start of the machine-dependent note types, we don't | |
7259 | understand it. */ | |
47d9a591 | 7260 | |
b4db1224 | 7261 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 7262 | return TRUE; |
50b2bdb7 AM |
7263 | |
7264 | ||
7265 | switch (bfd_get_arch (abfd)) | |
7266 | { | |
7267 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and | |
7268 | PT_GETFPREGS == mach+2. */ | |
7269 | ||
7270 | case bfd_arch_alpha: | |
7271 | case bfd_arch_sparc: | |
7272 | switch (note->type) | |
7273 | { | |
b4db1224 | 7274 | case NT_NETBSDCORE_FIRSTMACH+0: |
50b2bdb7 AM |
7275 | return elfcore_make_note_pseudosection (abfd, ".reg", note); |
7276 | ||
b4db1224 | 7277 | case NT_NETBSDCORE_FIRSTMACH+2: |
50b2bdb7 AM |
7278 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); |
7279 | ||
7280 | default: | |
b34976b6 | 7281 | return TRUE; |
50b2bdb7 AM |
7282 | } |
7283 | ||
7284 | /* On all other arch's, PT_GETREGS == mach+1 and | |
7285 | PT_GETFPREGS == mach+3. */ | |
7286 | ||
7287 | default: | |
7288 | switch (note->type) | |
7289 | { | |
b4db1224 | 7290 | case NT_NETBSDCORE_FIRSTMACH+1: |
50b2bdb7 AM |
7291 | return elfcore_make_note_pseudosection (abfd, ".reg", note); |
7292 | ||
b4db1224 | 7293 | case NT_NETBSDCORE_FIRSTMACH+3: |
50b2bdb7 AM |
7294 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); |
7295 | ||
7296 | default: | |
b34976b6 | 7297 | return TRUE; |
50b2bdb7 AM |
7298 | } |
7299 | } | |
7300 | /* NOTREACHED */ | |
7301 | } | |
7302 | ||
07c6e936 | 7303 | static bfd_boolean |
217aa764 | 7304 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, pid_t *tid) |
07c6e936 NC |
7305 | { |
7306 | void *ddata = note->descdata; | |
7307 | char buf[100]; | |
7308 | char *name; | |
7309 | asection *sect; | |
f8843e87 AM |
7310 | short sig; |
7311 | unsigned flags; | |
07c6e936 NC |
7312 | |
7313 | /* nto_procfs_status 'pid' field is at offset 0. */ | |
7314 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, (bfd_byte *) ddata); | |
7315 | ||
f8843e87 AM |
7316 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
7317 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
7318 | ||
7319 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
7320 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
7321 | |
7322 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
7323 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
7324 | { | |
7325 | elf_tdata (abfd)->core_signal = sig; | |
7326 | elf_tdata (abfd)->core_lwpid = *tid; | |
7327 | } | |
07c6e936 | 7328 | |
f8843e87 AM |
7329 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
7330 | do not come from signals so we make sure we set the current | |
7331 | thread just in case. */ | |
7332 | if (flags & 0x00000080) | |
7333 | elf_tdata (abfd)->core_lwpid = *tid; | |
07c6e936 NC |
7334 | |
7335 | /* Make a ".qnx_core_status/%d" section. */ | |
7336 | sprintf (buf, ".qnx_core_status/%d", *tid); | |
7337 | ||
217aa764 | 7338 | name = bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
7339 | if (name == NULL) |
7340 | return FALSE; | |
7341 | strcpy (name, buf); | |
7342 | ||
62f3bb11 | 7343 | sect = bfd_make_section_anyway (abfd, name); |
07c6e936 NC |
7344 | if (sect == NULL) |
7345 | return FALSE; | |
7346 | ||
eea6121a | 7347 | sect->size = note->descsz; |
07c6e936 NC |
7348 | sect->filepos = note->descpos; |
7349 | sect->flags = SEC_HAS_CONTENTS; | |
7350 | sect->alignment_power = 2; | |
7351 | ||
7352 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
7353 | } | |
7354 | ||
7355 | static bfd_boolean | |
217aa764 | 7356 | elfcore_grok_nto_gregs (bfd *abfd, Elf_Internal_Note *note, pid_t tid) |
07c6e936 NC |
7357 | { |
7358 | char buf[100]; | |
7359 | char *name; | |
7360 | asection *sect; | |
7361 | ||
7362 | /* Make a ".reg/%d" section. */ | |
7363 | sprintf (buf, ".reg/%d", tid); | |
7364 | ||
217aa764 | 7365 | name = bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
7366 | if (name == NULL) |
7367 | return FALSE; | |
7368 | strcpy (name, buf); | |
7369 | ||
62f3bb11 | 7370 | sect = bfd_make_section_anyway (abfd, name); |
07c6e936 NC |
7371 | if (sect == NULL) |
7372 | return FALSE; | |
7373 | ||
eea6121a | 7374 | sect->size = note->descsz; |
07c6e936 NC |
7375 | sect->filepos = note->descpos; |
7376 | sect->flags = SEC_HAS_CONTENTS; | |
7377 | sect->alignment_power = 2; | |
7378 | ||
f8843e87 AM |
7379 | /* This is the current thread. */ |
7380 | if (elf_tdata (abfd)->core_lwpid == tid) | |
7381 | return elfcore_maybe_make_sect (abfd, ".reg", sect); | |
7382 | ||
7383 | return TRUE; | |
07c6e936 NC |
7384 | } |
7385 | ||
7386 | #define BFD_QNT_CORE_INFO 7 | |
7387 | #define BFD_QNT_CORE_STATUS 8 | |
7388 | #define BFD_QNT_CORE_GREG 9 | |
7389 | #define BFD_QNT_CORE_FPREG 10 | |
7390 | ||
7391 | static bfd_boolean | |
217aa764 | 7392 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
7393 | { |
7394 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 7395 | tid from the previous call to pass down to the next gregs |
07c6e936 NC |
7396 | function. */ |
7397 | static pid_t tid = 1; | |
7398 | ||
7399 | switch (note->type) | |
7400 | { | |
7401 | case BFD_QNT_CORE_INFO: return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
7402 | case BFD_QNT_CORE_STATUS: return elfcore_grok_nto_status (abfd, note, &tid); | |
7403 | case BFD_QNT_CORE_GREG: return elfcore_grok_nto_gregs (abfd, note, tid); | |
7404 | case BFD_QNT_CORE_FPREG: return elfcore_grok_prfpreg (abfd, note); | |
7405 | default: return TRUE; | |
7406 | } | |
7407 | } | |
7408 | ||
7c76fa91 MS |
7409 | /* Function: elfcore_write_note |
7410 | ||
47d9a591 | 7411 | Inputs: |
7c76fa91 MS |
7412 | buffer to hold note |
7413 | name of note | |
7414 | type of note | |
7415 | data for note | |
7416 | size of data for note | |
7417 | ||
7418 | Return: | |
7419 | End of buffer containing note. */ | |
7420 | ||
7421 | char * | |
217aa764 AM |
7422 | elfcore_write_note (bfd *abfd, |
7423 | char *buf, | |
7424 | int *bufsiz, | |
7425 | const char *name, | |
7426 | int type, | |
7427 | const void *input, | |
7428 | int size) | |
7c76fa91 MS |
7429 | { |
7430 | Elf_External_Note *xnp; | |
d4c88bbb AM |
7431 | size_t namesz; |
7432 | size_t pad; | |
7433 | size_t newspace; | |
7c76fa91 MS |
7434 | char *p, *dest; |
7435 | ||
d4c88bbb AM |
7436 | namesz = 0; |
7437 | pad = 0; | |
7438 | if (name != NULL) | |
7439 | { | |
9c5bfbb7 | 7440 | const struct elf_backend_data *bed; |
d4c88bbb AM |
7441 | |
7442 | namesz = strlen (name) + 1; | |
7443 | bed = get_elf_backend_data (abfd); | |
45d6a902 | 7444 | pad = -namesz & ((1 << bed->s->log_file_align) - 1); |
d4c88bbb AM |
7445 | } |
7446 | ||
5de3bf90 | 7447 | newspace = 12 + namesz + pad + size; |
d4c88bbb | 7448 | |
7c76fa91 MS |
7449 | p = realloc (buf, *bufsiz + newspace); |
7450 | dest = p + *bufsiz; | |
7451 | *bufsiz += newspace; | |
7452 | xnp = (Elf_External_Note *) dest; | |
7453 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
7454 | H_PUT_32 (abfd, size, xnp->descsz); | |
7455 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
7456 | dest = xnp->name; |
7457 | if (name != NULL) | |
7458 | { | |
7459 | memcpy (dest, name, namesz); | |
7460 | dest += namesz; | |
7461 | while (pad != 0) | |
7462 | { | |
7463 | *dest++ = '\0'; | |
7464 | --pad; | |
7465 | } | |
7466 | } | |
7467 | memcpy (dest, input, size); | |
7c76fa91 MS |
7468 | return p; |
7469 | } | |
7470 | ||
7471 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) | |
7472 | char * | |
217aa764 AM |
7473 | elfcore_write_prpsinfo (bfd *abfd, |
7474 | char *buf, | |
7475 | int *bufsiz, | |
7476 | const char *fname, | |
7477 | const char *psargs) | |
7c76fa91 MS |
7478 | { |
7479 | int note_type; | |
7480 | char *note_name = "CORE"; | |
7481 | ||
7482 | #if defined (HAVE_PSINFO_T) | |
7483 | psinfo_t data; | |
7484 | note_type = NT_PSINFO; | |
7485 | #else | |
7486 | prpsinfo_t data; | |
7487 | note_type = NT_PRPSINFO; | |
7488 | #endif | |
7489 | ||
7490 | memset (&data, 0, sizeof (data)); | |
7491 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
7492 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
47d9a591 | 7493 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
7494 | note_name, note_type, &data, sizeof (data)); |
7495 | } | |
7496 | #endif /* PSINFO_T or PRPSINFO_T */ | |
7497 | ||
7498 | #if defined (HAVE_PRSTATUS_T) | |
7499 | char * | |
217aa764 AM |
7500 | elfcore_write_prstatus (bfd *abfd, |
7501 | char *buf, | |
7502 | int *bufsiz, | |
7503 | long pid, | |
7504 | int cursig, | |
7505 | const void *gregs) | |
7c76fa91 MS |
7506 | { |
7507 | prstatus_t prstat; | |
7508 | char *note_name = "CORE"; | |
7509 | ||
7510 | memset (&prstat, 0, sizeof (prstat)); | |
7511 | prstat.pr_pid = pid; | |
7512 | prstat.pr_cursig = cursig; | |
c106e334 | 7513 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); |
47d9a591 | 7514 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
7515 | note_name, NT_PRSTATUS, &prstat, sizeof (prstat)); |
7516 | } | |
7517 | #endif /* HAVE_PRSTATUS_T */ | |
7518 | ||
51316059 MS |
7519 | #if defined (HAVE_LWPSTATUS_T) |
7520 | char * | |
217aa764 AM |
7521 | elfcore_write_lwpstatus (bfd *abfd, |
7522 | char *buf, | |
7523 | int *bufsiz, | |
7524 | long pid, | |
7525 | int cursig, | |
7526 | const void *gregs) | |
51316059 MS |
7527 | { |
7528 | lwpstatus_t lwpstat; | |
7529 | char *note_name = "CORE"; | |
7530 | ||
7531 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
7532 | lwpstat.pr_lwpid = pid >> 16; | |
7533 | lwpstat.pr_cursig = cursig; | |
7534 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
7535 | memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); | |
7536 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
7537 | #if !defined(gregs) | |
7538 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
7539 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
7540 | #else | |
7541 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
7542 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
7543 | #endif | |
7544 | #endif | |
47d9a591 | 7545 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
7546 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
7547 | } | |
7548 | #endif /* HAVE_LWPSTATUS_T */ | |
7549 | ||
7c76fa91 MS |
7550 | #if defined (HAVE_PSTATUS_T) |
7551 | char * | |
217aa764 AM |
7552 | elfcore_write_pstatus (bfd *abfd, |
7553 | char *buf, | |
7554 | int *bufsiz, | |
7555 | long pid, | |
7556 | int cursig, | |
7557 | const void *gregs) | |
7c76fa91 MS |
7558 | { |
7559 | pstatus_t pstat; | |
7560 | char *note_name = "CORE"; | |
7561 | ||
51316059 MS |
7562 | memset (&pstat, 0, sizeof (pstat)); |
7563 | pstat.pr_pid = pid & 0xffff; | |
47d9a591 | 7564 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
7565 | NT_PSTATUS, &pstat, sizeof (pstat)); |
7566 | return buf; | |
7c76fa91 MS |
7567 | } |
7568 | #endif /* HAVE_PSTATUS_T */ | |
7569 | ||
7570 | char * | |
217aa764 AM |
7571 | elfcore_write_prfpreg (bfd *abfd, |
7572 | char *buf, | |
7573 | int *bufsiz, | |
7574 | const void *fpregs, | |
7575 | int size) | |
7c76fa91 MS |
7576 | { |
7577 | char *note_name = "CORE"; | |
47d9a591 | 7578 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
7579 | note_name, NT_FPREGSET, fpregs, size); |
7580 | } | |
7581 | ||
7582 | char * | |
217aa764 AM |
7583 | elfcore_write_prxfpreg (bfd *abfd, |
7584 | char *buf, | |
7585 | int *bufsiz, | |
7586 | const void *xfpregs, | |
7587 | int size) | |
7c76fa91 MS |
7588 | { |
7589 | char *note_name = "LINUX"; | |
47d9a591 | 7590 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
7591 | note_name, NT_PRXFPREG, xfpregs, size); |
7592 | } | |
7593 | ||
b34976b6 | 7594 | static bfd_boolean |
217aa764 | 7595 | elfcore_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) |
252b5132 | 7596 | { |
c044fabd KH |
7597 | char *buf; |
7598 | char *p; | |
252b5132 RH |
7599 | |
7600 | if (size <= 0) | |
b34976b6 | 7601 | return TRUE; |
252b5132 | 7602 | |
dc810e39 | 7603 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) |
b34976b6 | 7604 | return FALSE; |
252b5132 | 7605 | |
dc810e39 | 7606 | buf = bfd_malloc (size); |
252b5132 | 7607 | if (buf == NULL) |
b34976b6 | 7608 | return FALSE; |
252b5132 | 7609 | |
dc810e39 | 7610 | if (bfd_bread (buf, size, abfd) != size) |
252b5132 RH |
7611 | { |
7612 | error: | |
7613 | free (buf); | |
b34976b6 | 7614 | return FALSE; |
252b5132 RH |
7615 | } |
7616 | ||
7617 | p = buf; | |
7618 | while (p < buf + size) | |
7619 | { | |
c044fabd KH |
7620 | /* FIXME: bad alignment assumption. */ |
7621 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
7622 | Elf_Internal_Note in; |
7623 | ||
dc810e39 | 7624 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 7625 | |
dc810e39 | 7626 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 RH |
7627 | in.namedata = xnp->name; |
7628 | ||
dc810e39 | 7629 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
7630 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
7631 | in.descpos = offset + (in.descdata - buf); | |
7632 | ||
50b2bdb7 AM |
7633 | if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0) |
7634 | { | |
7635 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |
7636 | goto error; | |
7637 | } | |
07c6e936 NC |
7638 | else if (strncmp (in.namedata, "QNX", 3) == 0) |
7639 | { | |
7640 | if (! elfcore_grok_nto_note (abfd, &in)) | |
7641 | goto error; | |
7642 | } | |
50b2bdb7 AM |
7643 | else |
7644 | { | |
7645 | if (! elfcore_grok_note (abfd, &in)) | |
7646 | goto error; | |
7647 | } | |
252b5132 RH |
7648 | |
7649 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
7650 | } | |
7651 | ||
7652 | free (buf); | |
b34976b6 | 7653 | return TRUE; |
252b5132 | 7654 | } |
98d8431c JB |
7655 | \f |
7656 | /* Providing external access to the ELF program header table. */ | |
7657 | ||
7658 | /* Return an upper bound on the number of bytes required to store a | |
7659 | copy of ABFD's program header table entries. Return -1 if an error | |
7660 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 7661 | |
98d8431c | 7662 | long |
217aa764 | 7663 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
7664 | { |
7665 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
7666 | { | |
7667 | bfd_set_error (bfd_error_wrong_format); | |
7668 | return -1; | |
7669 | } | |
7670 | ||
936e320b | 7671 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
7672 | } |
7673 | ||
98d8431c JB |
7674 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
7675 | will be stored as an array of Elf_Internal_Phdr structures, as | |
7676 | defined in include/elf/internal.h. To find out how large the | |
7677 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
7678 | ||
7679 | Return the number of program header table entries read, or -1 if an | |
7680 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 7681 | |
98d8431c | 7682 | int |
217aa764 | 7683 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
7684 | { |
7685 | int num_phdrs; | |
7686 | ||
7687 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
7688 | { | |
7689 | bfd_set_error (bfd_error_wrong_format); | |
7690 | return -1; | |
7691 | } | |
7692 | ||
7693 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 7694 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
7695 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
7696 | ||
7697 | return num_phdrs; | |
7698 | } | |
ae4221d7 L |
7699 | |
7700 | void | |
217aa764 | 7701 | _bfd_elf_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value) |
ae4221d7 | 7702 | { |
d3b05f8d | 7703 | #ifdef BFD64 |
ae4221d7 L |
7704 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ |
7705 | ||
7706 | i_ehdrp = elf_elfheader (abfd); | |
7707 | if (i_ehdrp == NULL) | |
7708 | sprintf_vma (buf, value); | |
7709 | else | |
7710 | { | |
7711 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) | |
cc55aec9 | 7712 | { |
ae4221d7 | 7713 | #if BFD_HOST_64BIT_LONG |
cc55aec9 | 7714 | sprintf (buf, "%016lx", value); |
ae4221d7 | 7715 | #else |
cc55aec9 AM |
7716 | sprintf (buf, "%08lx%08lx", _bfd_int64_high (value), |
7717 | _bfd_int64_low (value)); | |
ae4221d7 | 7718 | #endif |
cc55aec9 | 7719 | } |
ae4221d7 L |
7720 | else |
7721 | sprintf (buf, "%08lx", (unsigned long) (value & 0xffffffff)); | |
7722 | } | |
d3b05f8d L |
7723 | #else |
7724 | sprintf_vma (buf, value); | |
7725 | #endif | |
ae4221d7 L |
7726 | } |
7727 | ||
7728 | void | |
217aa764 | 7729 | _bfd_elf_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value) |
ae4221d7 | 7730 | { |
d3b05f8d | 7731 | #ifdef BFD64 |
ae4221d7 L |
7732 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ |
7733 | ||
7734 | i_ehdrp = elf_elfheader (abfd); | |
7735 | if (i_ehdrp == NULL) | |
7736 | fprintf_vma ((FILE *) stream, value); | |
7737 | else | |
7738 | { | |
7739 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) | |
cc55aec9 | 7740 | { |
ae4221d7 | 7741 | #if BFD_HOST_64BIT_LONG |
cc55aec9 | 7742 | fprintf ((FILE *) stream, "%016lx", value); |
ae4221d7 | 7743 | #else |
cc55aec9 AM |
7744 | fprintf ((FILE *) stream, "%08lx%08lx", |
7745 | _bfd_int64_high (value), _bfd_int64_low (value)); | |
ae4221d7 | 7746 | #endif |
cc55aec9 | 7747 | } |
ae4221d7 L |
7748 | else |
7749 | fprintf ((FILE *) stream, "%08lx", | |
7750 | (unsigned long) (value & 0xffffffff)); | |
7751 | } | |
d3b05f8d L |
7752 | #else |
7753 | fprintf_vma ((FILE *) stream, value); | |
7754 | #endif | |
ae4221d7 | 7755 | } |
db6751f2 JJ |
7756 | |
7757 | enum elf_reloc_type_class | |
217aa764 | 7758 | _bfd_elf_reloc_type_class (const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) |
db6751f2 JJ |
7759 | { |
7760 | return reloc_class_normal; | |
7761 | } | |
f8df10f4 | 7762 | |
47d9a591 | 7763 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
7764 | relocation against a local symbol. */ |
7765 | ||
7766 | bfd_vma | |
217aa764 AM |
7767 | _bfd_elf_rela_local_sym (bfd *abfd, |
7768 | Elf_Internal_Sym *sym, | |
8517fae7 | 7769 | asection **psec, |
217aa764 | 7770 | Elf_Internal_Rela *rel) |
f8df10f4 | 7771 | { |
8517fae7 | 7772 | asection *sec = *psec; |
f8df10f4 JJ |
7773 | bfd_vma relocation; |
7774 | ||
7775 | relocation = (sec->output_section->vma | |
7776 | + sec->output_offset | |
7777 | + sym->st_value); | |
7778 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 7779 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
68bfbfcc | 7780 | && sec->sec_info_type == ELF_INFO_TYPE_MERGE) |
f8df10f4 | 7781 | { |
f8df10f4 | 7782 | rel->r_addend = |
8517fae7 | 7783 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 7784 | elf_section_data (sec)->sec_info, |
753731ee AM |
7785 | sym->st_value + rel->r_addend); |
7786 | if (sec != *psec) | |
7787 | { | |
7788 | /* If we have changed the section, and our original section is | |
7789 | marked with SEC_EXCLUDE, it means that the original | |
7790 | SEC_MERGE section has been completely subsumed in some | |
7791 | other SEC_MERGE section. In this case, we need to leave | |
7792 | some info around for --emit-relocs. */ | |
7793 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
7794 | sec->kept_section = *psec; | |
7795 | sec = *psec; | |
7796 | } | |
8517fae7 AM |
7797 | rel->r_addend -= relocation; |
7798 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
7799 | } |
7800 | return relocation; | |
7801 | } | |
c629eae0 JJ |
7802 | |
7803 | bfd_vma | |
217aa764 AM |
7804 | _bfd_elf_rel_local_sym (bfd *abfd, |
7805 | Elf_Internal_Sym *sym, | |
7806 | asection **psec, | |
7807 | bfd_vma addend) | |
47d9a591 | 7808 | { |
c629eae0 JJ |
7809 | asection *sec = *psec; |
7810 | ||
68bfbfcc | 7811 | if (sec->sec_info_type != ELF_INFO_TYPE_MERGE) |
c629eae0 JJ |
7812 | return sym->st_value + addend; |
7813 | ||
7814 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 7815 | elf_section_data (sec)->sec_info, |
753731ee | 7816 | sym->st_value + addend); |
c629eae0 JJ |
7817 | } |
7818 | ||
7819 | bfd_vma | |
217aa764 | 7820 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 7821 | struct bfd_link_info *info, |
217aa764 AM |
7822 | asection *sec, |
7823 | bfd_vma offset) | |
c629eae0 | 7824 | { |
68bfbfcc | 7825 | switch (sec->sec_info_type) |
65765700 JJ |
7826 | { |
7827 | case ELF_INFO_TYPE_STABS: | |
eea6121a AM |
7828 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
7829 | offset); | |
65765700 | 7830 | case ELF_INFO_TYPE_EH_FRAME: |
92e4ec35 | 7831 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
65765700 JJ |
7832 | default: |
7833 | return offset; | |
7834 | } | |
c629eae0 | 7835 | } |
3333a7c3 RM |
7836 | \f |
7837 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
7838 | reconstruct an ELF file by reading the segments out of remote memory | |
7839 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
7840 | points to. If not null, *LOADBASEP is filled in with the difference | |
7841 | between the VMAs from which the segments were read, and the VMAs the | |
7842 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
7843 | ||
7844 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
7845 | remote memory at target address VMA into the local buffer at MYADDR; it | |
7846 | should return zero on success or an `errno' code on failure. TEMPL must | |
7847 | be a BFD for an ELF target with the word size and byte order found in | |
7848 | the remote memory. */ | |
7849 | ||
7850 | bfd * | |
217aa764 AM |
7851 | bfd_elf_bfd_from_remote_memory |
7852 | (bfd *templ, | |
7853 | bfd_vma ehdr_vma, | |
7854 | bfd_vma *loadbasep, | |
7855 | int (*target_read_memory) (bfd_vma, char *, int)) | |
3333a7c3 RM |
7856 | { |
7857 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
7858 | (templ, ehdr_vma, loadbasep, target_read_memory); | |
7859 | } | |
4c45e5c9 JJ |
7860 | \f |
7861 | long | |
c9727e01 AM |
7862 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
7863 | long symcount ATTRIBUTE_UNUSED, | |
7864 | asymbol **syms ATTRIBUTE_UNUSED, | |
7865 | long dynsymcount ATTRIBUTE_UNUSED, | |
7866 | asymbol **dynsyms, | |
7867 | asymbol **ret) | |
4c45e5c9 JJ |
7868 | { |
7869 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7870 | asection *relplt; | |
7871 | asymbol *s; | |
7872 | const char *relplt_name; | |
7873 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
7874 | arelent *p; | |
7875 | long count, i, n; | |
7876 | size_t size; | |
7877 | Elf_Internal_Shdr *hdr; | |
7878 | char *names; | |
7879 | asection *plt; | |
7880 | ||
90e3cdf2 JJ |
7881 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
7882 | return 0; | |
7883 | ||
4c45e5c9 JJ |
7884 | *ret = NULL; |
7885 | if (!bed->plt_sym_val) | |
7886 | return 0; | |
7887 | ||
7888 | relplt_name = bed->relplt_name; | |
7889 | if (relplt_name == NULL) | |
7890 | relplt_name = bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"; | |
7891 | relplt = bfd_get_section_by_name (abfd, relplt_name); | |
7892 | if (relplt == NULL) | |
7893 | return 0; | |
7894 | ||
7895 | hdr = &elf_section_data (relplt)->this_hdr; | |
7896 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
7897 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
7898 | return 0; | |
7899 | ||
7900 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
7901 | if (plt == NULL) | |
7902 | return 0; | |
7903 | ||
7904 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 7905 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
7906 | return -1; |
7907 | ||
eea6121a | 7908 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
7909 | size = count * sizeof (asymbol); |
7910 | p = relplt->relocation; | |
7911 | for (i = 0; i < count; i++, s++, p++) | |
7912 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
7913 | ||
7914 | s = *ret = bfd_malloc (size); | |
7915 | if (s == NULL) | |
7916 | return -1; | |
7917 | ||
7918 | names = (char *) (s + count); | |
7919 | p = relplt->relocation; | |
7920 | n = 0; | |
7921 | for (i = 0; i < count; i++, s++, p++) | |
7922 | { | |
7923 | size_t len; | |
7924 | bfd_vma addr; | |
7925 | ||
7926 | addr = bed->plt_sym_val (i, plt, p); | |
7927 | if (addr == (bfd_vma) -1) | |
7928 | continue; | |
7929 | ||
7930 | *s = **p->sym_ptr_ptr; | |
7931 | s->section = plt; | |
7932 | s->value = addr - plt->vma; | |
7933 | s->name = names; | |
7934 | len = strlen ((*p->sym_ptr_ptr)->name); | |
7935 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
7936 | names += len; | |
7937 | memcpy (names, "@plt", sizeof ("@plt")); | |
7938 | names += sizeof ("@plt"); | |
7939 | ++n; | |
7940 | } | |
7941 | ||
7942 | return n; | |
7943 | } | |
3d7f7666 L |
7944 | |
7945 | /* Sort symbol by binding and section. We want to put definitions | |
7946 | sorted by section at the beginning. */ | |
7947 | ||
7948 | static int | |
7949 | elf_sort_elf_symbol (const void *arg1, const void *arg2) | |
7950 | { | |
7951 | const Elf_Internal_Sym *s1; | |
7952 | const Elf_Internal_Sym *s2; | |
7953 | int shndx; | |
7954 | ||
7955 | /* Make sure that undefined symbols are at the end. */ | |
7956 | s1 = (const Elf_Internal_Sym *) arg1; | |
7957 | if (s1->st_shndx == SHN_UNDEF) | |
7958 | return 1; | |
7959 | s2 = (const Elf_Internal_Sym *) arg2; | |
7960 | if (s2->st_shndx == SHN_UNDEF) | |
7961 | return -1; | |
7962 | ||
7963 | /* Sorted by section index. */ | |
7964 | shndx = s1->st_shndx - s2->st_shndx; | |
7965 | if (shndx != 0) | |
7966 | return shndx; | |
7967 | ||
7968 | /* Sorted by binding. */ | |
7969 | return ELF_ST_BIND (s1->st_info) - ELF_ST_BIND (s2->st_info); | |
7970 | } | |
7971 | ||
7972 | struct elf_symbol | |
7973 | { | |
7974 | Elf_Internal_Sym *sym; | |
7975 | const char *name; | |
7976 | }; | |
7977 | ||
7978 | static int | |
7979 | elf_sym_name_compare (const void *arg1, const void *arg2) | |
7980 | { | |
7981 | const struct elf_symbol *s1 = (const struct elf_symbol *) arg1; | |
7982 | const struct elf_symbol *s2 = (const struct elf_symbol *) arg2; | |
7983 | return strcmp (s1->name, s2->name); | |
7984 | } | |
7985 | ||
7986 | /* Check if 2 sections define the same set of local and global | |
7987 | symbols. */ | |
7988 | ||
7989 | bfd_boolean | |
7990 | bfd_elf_match_symbols_in_sections (asection *sec1, asection *sec2) | |
7991 | { | |
7992 | bfd *bfd1, *bfd2; | |
7993 | const struct elf_backend_data *bed1, *bed2; | |
7994 | Elf_Internal_Shdr *hdr1, *hdr2; | |
7995 | bfd_size_type symcount1, symcount2; | |
7996 | Elf_Internal_Sym *isymbuf1, *isymbuf2; | |
7997 | Elf_Internal_Sym *isymstart1 = NULL, *isymstart2 = NULL, *isym; | |
7998 | Elf_Internal_Sym *isymend; | |
7999 | struct elf_symbol *symp, *symtable1 = NULL, *symtable2 = NULL; | |
8000 | bfd_size_type count1, count2, i; | |
8001 | int shndx1, shndx2; | |
8002 | bfd_boolean result; | |
8003 | ||
8004 | bfd1 = sec1->owner; | |
8005 | bfd2 = sec2->owner; | |
8006 | ||
8007 | /* If both are .gnu.linkonce sections, they have to have the same | |
8008 | section name. */ | |
8009 | if (strncmp (sec1->name, ".gnu.linkonce", | |
8010 | sizeof ".gnu.linkonce" - 1) == 0 | |
8011 | && strncmp (sec2->name, ".gnu.linkonce", | |
8012 | sizeof ".gnu.linkonce" - 1) == 0) | |
8013 | return strcmp (sec1->name + sizeof ".gnu.linkonce", | |
8014 | sec2->name + sizeof ".gnu.linkonce") == 0; | |
8015 | ||
8016 | /* Both sections have to be in ELF. */ | |
8017 | if (bfd_get_flavour (bfd1) != bfd_target_elf_flavour | |
8018 | || bfd_get_flavour (bfd2) != bfd_target_elf_flavour) | |
8019 | return FALSE; | |
8020 | ||
8021 | if (elf_section_type (sec1) != elf_section_type (sec2)) | |
8022 | return FALSE; | |
8023 | ||
8024 | if ((elf_section_flags (sec1) & SHF_GROUP) != 0 | |
8025 | && (elf_section_flags (sec2) & SHF_GROUP) != 0) | |
8026 | { | |
8027 | /* If both are members of section groups, they have to have the | |
8028 | same group name. */ | |
8029 | if (strcmp (elf_group_name (sec1), elf_group_name (sec2)) != 0) | |
8030 | return FALSE; | |
8031 | } | |
8032 | ||
8033 | shndx1 = _bfd_elf_section_from_bfd_section (bfd1, sec1); | |
8034 | shndx2 = _bfd_elf_section_from_bfd_section (bfd2, sec2); | |
8035 | if (shndx1 == -1 || shndx2 == -1) | |
8036 | return FALSE; | |
8037 | ||
8038 | bed1 = get_elf_backend_data (bfd1); | |
8039 | bed2 = get_elf_backend_data (bfd2); | |
8040 | hdr1 = &elf_tdata (bfd1)->symtab_hdr; | |
8041 | symcount1 = hdr1->sh_size / bed1->s->sizeof_sym; | |
8042 | hdr2 = &elf_tdata (bfd2)->symtab_hdr; | |
8043 | symcount2 = hdr2->sh_size / bed2->s->sizeof_sym; | |
8044 | ||
8045 | if (symcount1 == 0 || symcount2 == 0) | |
8046 | return FALSE; | |
8047 | ||
8048 | isymbuf1 = bfd_elf_get_elf_syms (bfd1, hdr1, symcount1, 0, | |
8049 | NULL, NULL, NULL); | |
8050 | isymbuf2 = bfd_elf_get_elf_syms (bfd2, hdr2, symcount2, 0, | |
8051 | NULL, NULL, NULL); | |
8052 | ||
8053 | result = FALSE; | |
8054 | if (isymbuf1 == NULL || isymbuf2 == NULL) | |
8055 | goto done; | |
8056 | ||
8057 | /* Sort symbols by binding and section. Global definitions are at | |
8058 | the beginning. */ | |
8059 | qsort (isymbuf1, symcount1, sizeof (Elf_Internal_Sym), | |
8060 | elf_sort_elf_symbol); | |
8061 | qsort (isymbuf2, symcount2, sizeof (Elf_Internal_Sym), | |
8062 | elf_sort_elf_symbol); | |
8063 | ||
8064 | /* Count definitions in the section. */ | |
8065 | count1 = 0; | |
8066 | for (isym = isymbuf1, isymend = isym + symcount1; | |
8067 | isym < isymend; isym++) | |
8068 | { | |
8069 | if (isym->st_shndx == (unsigned int) shndx1) | |
8070 | { | |
8071 | if (count1 == 0) | |
8072 | isymstart1 = isym; | |
8073 | count1++; | |
8074 | } | |
8075 | ||
8076 | if (count1 && isym->st_shndx != (unsigned int) shndx1) | |
8077 | break; | |
8078 | } | |
8079 | ||
8080 | count2 = 0; | |
8081 | for (isym = isymbuf2, isymend = isym + symcount2; | |
8082 | isym < isymend; isym++) | |
8083 | { | |
8084 | if (isym->st_shndx == (unsigned int) shndx2) | |
8085 | { | |
8086 | if (count2 == 0) | |
8087 | isymstart2 = isym; | |
8088 | count2++; | |
8089 | } | |
8090 | ||
8091 | if (count2 && isym->st_shndx != (unsigned int) shndx2) | |
8092 | break; | |
8093 | } | |
8094 | ||
8095 | if (count1 == 0 || count2 == 0 || count1 != count2) | |
8096 | goto done; | |
8097 | ||
8098 | symtable1 = bfd_malloc (count1 * sizeof (struct elf_symbol)); | |
8099 | symtable2 = bfd_malloc (count1 * sizeof (struct elf_symbol)); | |
8100 | ||
8101 | if (symtable1 == NULL || symtable2 == NULL) | |
8102 | goto done; | |
8103 | ||
8104 | symp = symtable1; | |
8105 | for (isym = isymstart1, isymend = isym + count1; | |
8106 | isym < isymend; isym++) | |
8107 | { | |
8108 | symp->sym = isym; | |
8109 | symp->name = bfd_elf_string_from_elf_section (bfd1, | |
8110 | hdr1->sh_link, | |
8111 | isym->st_name); | |
8112 | symp++; | |
8113 | } | |
8114 | ||
8115 | symp = symtable2; | |
8116 | for (isym = isymstart2, isymend = isym + count1; | |
8117 | isym < isymend; isym++) | |
8118 | { | |
8119 | symp->sym = isym; | |
8120 | symp->name = bfd_elf_string_from_elf_section (bfd2, | |
8121 | hdr2->sh_link, | |
8122 | isym->st_name); | |
8123 | symp++; | |
8124 | } | |
8125 | ||
8126 | /* Sort symbol by name. */ | |
8127 | qsort (symtable1, count1, sizeof (struct elf_symbol), | |
8128 | elf_sym_name_compare); | |
8129 | qsort (symtable2, count1, sizeof (struct elf_symbol), | |
8130 | elf_sym_name_compare); | |
8131 | ||
8132 | for (i = 0; i < count1; i++) | |
8133 | /* Two symbols must have the same binding, type and name. */ | |
8134 | if (symtable1 [i].sym->st_info != symtable2 [i].sym->st_info | |
8135 | || symtable1 [i].sym->st_other != symtable2 [i].sym->st_other | |
8136 | || strcmp (symtable1 [i].name, symtable2 [i].name) != 0) | |
8137 | goto done; | |
8138 | ||
8139 | result = TRUE; | |
8140 | ||
8141 | done: | |
8142 | if (symtable1) | |
8143 | free (symtable1); | |
8144 | if (symtable2) | |
8145 | free (symtable2); | |
8146 | if (isymbuf1) | |
8147 | free (isymbuf1); | |
8148 | if (isymbuf2) | |
8149 | free (isymbuf2); | |
8150 | ||
8151 | return result; | |
8152 | } |