Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
e1fddb6b | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 |
7898deda | 3 | Free Software Foundation, Inc. |
252b5132 | 4 | |
661a3fd4 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
661a3fd4 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
252b5132 | 11 | |
661a3fd4 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
661a3fd4 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 | 20 | |
661a3fd4 NC |
21 | /* SECTION |
22 | ||
252b5132 RH |
23 | ELF backends |
24 | ||
25 | BFD support for ELF formats is being worked on. | |
26 | Currently, the best supported back ends are for sparc and i386 | |
27 | (running svr4 or Solaris 2). | |
28 | ||
29 | Documentation of the internals of the support code still needs | |
30 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 31 | haven't bothered yet. */ |
252b5132 | 32 | |
7ee38065 MS |
33 | /* For sparc64-cross-sparc32. */ |
34 | #define _SYSCALL32 | |
252b5132 RH |
35 | #include "bfd.h" |
36 | #include "sysdep.h" | |
37 | #include "bfdlink.h" | |
38 | #include "libbfd.h" | |
39 | #define ARCH_SIZE 0 | |
40 | #include "elf-bfd.h" | |
e0e8c97f | 41 | #include "libiberty.h" |
252b5132 RH |
42 | |
43 | static INLINE struct elf_segment_map *make_mapping | |
44 | PARAMS ((bfd *, asection **, unsigned int, unsigned int, boolean)); | |
45 | static boolean map_sections_to_segments PARAMS ((bfd *)); | |
46 | static int elf_sort_sections PARAMS ((const PTR, const PTR)); | |
47 | static boolean assign_file_positions_for_segments PARAMS ((bfd *)); | |
48 | static boolean assign_file_positions_except_relocs PARAMS ((bfd *)); | |
49 | static boolean prep_headers PARAMS ((bfd *)); | |
50 | static boolean swap_out_syms PARAMS ((bfd *, struct bfd_strtab_hash **, int)); | |
51 | static boolean copy_private_bfd_data PARAMS ((bfd *, bfd *)); | |
dc810e39 | 52 | static char *elf_read PARAMS ((bfd *, file_ptr, bfd_size_type)); |
b885599b | 53 | static const char *group_signature PARAMS ((bfd *, Elf_Internal_Shdr *)); |
dbb410c3 | 54 | static boolean setup_group PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); |
d3c456e9 | 55 | static void merge_sections_remove_hook PARAMS ((bfd *, asection *)); |
252b5132 | 56 | static void elf_fake_sections PARAMS ((bfd *, asection *, PTR)); |
dbb410c3 | 57 | static void set_group_contents PARAMS ((bfd *, asection *, PTR)); |
252b5132 RH |
58 | static boolean assign_section_numbers PARAMS ((bfd *)); |
59 | static INLINE int sym_is_global PARAMS ((bfd *, asymbol *)); | |
60 | static boolean elf_map_symbols PARAMS ((bfd *)); | |
61 | static bfd_size_type get_program_header_size PARAMS ((bfd *)); | |
dc810e39 | 62 | static boolean elfcore_read_notes PARAMS ((bfd *, file_ptr, bfd_size_type)); |
a7b97311 AM |
63 | static boolean elf_find_function PARAMS ((bfd *, asection *, asymbol **, |
64 | bfd_vma, const char **, | |
65 | const char **)); | |
66 | static int elfcore_make_pid PARAMS ((bfd *)); | |
67 | static boolean elfcore_maybe_make_sect PARAMS ((bfd *, char *, asection *)); | |
68 | static boolean elfcore_make_note_pseudosection PARAMS ((bfd *, char *, | |
69 | Elf_Internal_Note *)); | |
70 | static boolean elfcore_grok_prfpreg PARAMS ((bfd *, Elf_Internal_Note *)); | |
71 | static boolean elfcore_grok_prxfpreg PARAMS ((bfd *, Elf_Internal_Note *)); | |
72 | static boolean elfcore_grok_note PARAMS ((bfd *, Elf_Internal_Note *)); | |
252b5132 | 73 | |
50b2bdb7 AM |
74 | static boolean elfcore_netbsd_get_lwpid PARAMS ((Elf_Internal_Note *, int *)); |
75 | static boolean elfcore_grok_netbsd_procinfo PARAMS ((bfd *, | |
76 | Elf_Internal_Note *)); | |
77 | static boolean elfcore_grok_netbsd_note PARAMS ((bfd *, Elf_Internal_Note *)); | |
78 | ||
252b5132 RH |
79 | /* Swap version information in and out. The version information is |
80 | currently size independent. If that ever changes, this code will | |
81 | need to move into elfcode.h. */ | |
82 | ||
83 | /* Swap in a Verdef structure. */ | |
84 | ||
85 | void | |
86 | _bfd_elf_swap_verdef_in (abfd, src, dst) | |
87 | bfd *abfd; | |
88 | const Elf_External_Verdef *src; | |
89 | Elf_Internal_Verdef *dst; | |
90 | { | |
dc810e39 AM |
91 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
92 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
93 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
94 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
95 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
96 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
97 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
98 | } |
99 | ||
100 | /* Swap out a Verdef structure. */ | |
101 | ||
102 | void | |
103 | _bfd_elf_swap_verdef_out (abfd, src, dst) | |
104 | bfd *abfd; | |
105 | const Elf_Internal_Verdef *src; | |
106 | Elf_External_Verdef *dst; | |
107 | { | |
dc810e39 AM |
108 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
109 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
110 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
111 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
112 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
113 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
114 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
115 | } |
116 | ||
117 | /* Swap in a Verdaux structure. */ | |
118 | ||
119 | void | |
120 | _bfd_elf_swap_verdaux_in (abfd, src, dst) | |
121 | bfd *abfd; | |
122 | const Elf_External_Verdaux *src; | |
123 | Elf_Internal_Verdaux *dst; | |
124 | { | |
dc810e39 AM |
125 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
126 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
127 | } |
128 | ||
129 | /* Swap out a Verdaux structure. */ | |
130 | ||
131 | void | |
132 | _bfd_elf_swap_verdaux_out (abfd, src, dst) | |
133 | bfd *abfd; | |
134 | const Elf_Internal_Verdaux *src; | |
135 | Elf_External_Verdaux *dst; | |
136 | { | |
dc810e39 AM |
137 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
138 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
139 | } |
140 | ||
141 | /* Swap in a Verneed structure. */ | |
142 | ||
143 | void | |
144 | _bfd_elf_swap_verneed_in (abfd, src, dst) | |
145 | bfd *abfd; | |
146 | const Elf_External_Verneed *src; | |
147 | Elf_Internal_Verneed *dst; | |
148 | { | |
dc810e39 AM |
149 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
150 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
151 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
152 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
153 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
154 | } |
155 | ||
156 | /* Swap out a Verneed structure. */ | |
157 | ||
158 | void | |
159 | _bfd_elf_swap_verneed_out (abfd, src, dst) | |
160 | bfd *abfd; | |
161 | const Elf_Internal_Verneed *src; | |
162 | Elf_External_Verneed *dst; | |
163 | { | |
dc810e39 AM |
164 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
165 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
166 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
167 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
168 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
169 | } |
170 | ||
171 | /* Swap in a Vernaux structure. */ | |
172 | ||
173 | void | |
174 | _bfd_elf_swap_vernaux_in (abfd, src, dst) | |
175 | bfd *abfd; | |
176 | const Elf_External_Vernaux *src; | |
177 | Elf_Internal_Vernaux *dst; | |
178 | { | |
dc810e39 AM |
179 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
180 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
181 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
182 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
183 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
184 | } |
185 | ||
186 | /* Swap out a Vernaux structure. */ | |
187 | ||
188 | void | |
189 | _bfd_elf_swap_vernaux_out (abfd, src, dst) | |
190 | bfd *abfd; | |
191 | const Elf_Internal_Vernaux *src; | |
192 | Elf_External_Vernaux *dst; | |
193 | { | |
dc810e39 AM |
194 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
195 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
196 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
197 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
198 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
199 | } |
200 | ||
201 | /* Swap in a Versym structure. */ | |
202 | ||
203 | void | |
204 | _bfd_elf_swap_versym_in (abfd, src, dst) | |
205 | bfd *abfd; | |
206 | const Elf_External_Versym *src; | |
207 | Elf_Internal_Versym *dst; | |
208 | { | |
dc810e39 | 209 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
210 | } |
211 | ||
212 | /* Swap out a Versym structure. */ | |
213 | ||
214 | void | |
215 | _bfd_elf_swap_versym_out (abfd, src, dst) | |
216 | bfd *abfd; | |
217 | const Elf_Internal_Versym *src; | |
218 | Elf_External_Versym *dst; | |
219 | { | |
dc810e39 | 220 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
221 | } |
222 | ||
223 | /* Standard ELF hash function. Do not change this function; you will | |
224 | cause invalid hash tables to be generated. */ | |
3a99b017 | 225 | |
252b5132 | 226 | unsigned long |
3a99b017 ILT |
227 | bfd_elf_hash (namearg) |
228 | const char *namearg; | |
252b5132 | 229 | { |
3a99b017 | 230 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
231 | unsigned long h = 0; |
232 | unsigned long g; | |
233 | int ch; | |
234 | ||
235 | while ((ch = *name++) != '\0') | |
236 | { | |
237 | h = (h << 4) + ch; | |
238 | if ((g = (h & 0xf0000000)) != 0) | |
239 | { | |
240 | h ^= g >> 24; | |
241 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
242 | this case and on some machines one insn instead of two. */ | |
243 | h ^= g; | |
244 | } | |
245 | } | |
246 | return h; | |
247 | } | |
248 | ||
249 | /* Read a specified number of bytes at a specified offset in an ELF | |
250 | file, into a newly allocated buffer, and return a pointer to the | |
c044fabd | 251 | buffer. */ |
252b5132 RH |
252 | |
253 | static char * | |
254 | elf_read (abfd, offset, size) | |
c044fabd | 255 | bfd *abfd; |
dc810e39 AM |
256 | file_ptr offset; |
257 | bfd_size_type size; | |
252b5132 RH |
258 | { |
259 | char *buf; | |
260 | ||
261 | if ((buf = bfd_alloc (abfd, size)) == NULL) | |
262 | return NULL; | |
dc810e39 | 263 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) |
252b5132 | 264 | return NULL; |
dc810e39 | 265 | if (bfd_bread ((PTR) buf, size, abfd) != size) |
252b5132 RH |
266 | { |
267 | if (bfd_get_error () != bfd_error_system_call) | |
268 | bfd_set_error (bfd_error_file_truncated); | |
269 | return NULL; | |
270 | } | |
271 | return buf; | |
272 | } | |
273 | ||
274 | boolean | |
275 | bfd_elf_mkobject (abfd) | |
c044fabd | 276 | bfd *abfd; |
252b5132 | 277 | { |
c044fabd KH |
278 | /* This just does initialization. */ |
279 | /* coff_mkobject zalloc's space for tdata.coff_obj_data ... */ | |
dc810e39 AM |
280 | bfd_size_type amt = sizeof (struct elf_obj_tdata); |
281 | elf_tdata (abfd) = (struct elf_obj_tdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
282 | if (elf_tdata (abfd) == 0) |
283 | return false; | |
c044fabd KH |
284 | /* Since everything is done at close time, do we need any |
285 | initialization? */ | |
252b5132 RH |
286 | |
287 | return true; | |
288 | } | |
289 | ||
290 | boolean | |
291 | bfd_elf_mkcorefile (abfd) | |
c044fabd | 292 | bfd *abfd; |
252b5132 | 293 | { |
c044fabd | 294 | /* I think this can be done just like an object file. */ |
252b5132 RH |
295 | return bfd_elf_mkobject (abfd); |
296 | } | |
297 | ||
298 | char * | |
299 | bfd_elf_get_str_section (abfd, shindex) | |
c044fabd | 300 | bfd *abfd; |
252b5132 RH |
301 | unsigned int shindex; |
302 | { | |
303 | Elf_Internal_Shdr **i_shdrp; | |
304 | char *shstrtab = NULL; | |
dc810e39 AM |
305 | file_ptr offset; |
306 | bfd_size_type shstrtabsize; | |
252b5132 RH |
307 | |
308 | i_shdrp = elf_elfsections (abfd); | |
309 | if (i_shdrp == 0 || i_shdrp[shindex] == 0) | |
310 | return 0; | |
311 | ||
312 | shstrtab = (char *) i_shdrp[shindex]->contents; | |
313 | if (shstrtab == NULL) | |
314 | { | |
c044fabd | 315 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
316 | offset = i_shdrp[shindex]->sh_offset; |
317 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
318 | shstrtab = elf_read (abfd, offset, shstrtabsize); | |
319 | i_shdrp[shindex]->contents = (PTR) shstrtab; | |
320 | } | |
321 | return shstrtab; | |
322 | } | |
323 | ||
324 | char * | |
325 | bfd_elf_string_from_elf_section (abfd, shindex, strindex) | |
c044fabd | 326 | bfd *abfd; |
252b5132 RH |
327 | unsigned int shindex; |
328 | unsigned int strindex; | |
329 | { | |
330 | Elf_Internal_Shdr *hdr; | |
331 | ||
332 | if (strindex == 0) | |
333 | return ""; | |
334 | ||
335 | hdr = elf_elfsections (abfd)[shindex]; | |
336 | ||
337 | if (hdr->contents == NULL | |
338 | && bfd_elf_get_str_section (abfd, shindex) == NULL) | |
339 | return NULL; | |
340 | ||
341 | if (strindex >= hdr->sh_size) | |
342 | { | |
343 | (*_bfd_error_handler) | |
344 | (_("%s: invalid string offset %u >= %lu for section `%s'"), | |
8f615d07 | 345 | bfd_archive_filename (abfd), strindex, (unsigned long) hdr->sh_size, |
252b5132 RH |
346 | ((shindex == elf_elfheader(abfd)->e_shstrndx |
347 | && strindex == hdr->sh_name) | |
348 | ? ".shstrtab" | |
349 | : elf_string_from_elf_strtab (abfd, hdr->sh_name))); | |
350 | return ""; | |
351 | } | |
352 | ||
353 | return ((char *) hdr->contents) + strindex; | |
354 | } | |
355 | ||
dbb410c3 AM |
356 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
357 | sections. The first element is the flags, the rest are section | |
358 | pointers. */ | |
359 | ||
360 | typedef union elf_internal_group { | |
361 | Elf_Internal_Shdr *shdr; | |
362 | unsigned int flags; | |
363 | } Elf_Internal_Group; | |
364 | ||
b885599b AM |
365 | /* Return the name of the group signature symbol. Why isn't the |
366 | signature just a string? */ | |
367 | ||
368 | static const char * | |
369 | group_signature (abfd, ghdr) | |
370 | bfd *abfd; | |
371 | Elf_Internal_Shdr *ghdr; | |
372 | { | |
373 | struct elf_backend_data *bed; | |
374 | file_ptr pos; | |
375 | unsigned char ename[4]; | |
376 | unsigned long iname; | |
377 | ||
378 | /* First we need to ensure the symbol table is available. */ | |
379 | if (! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
380 | return NULL; | |
381 | ||
382 | /* Fortunately, the name index is at the same place in the external | |
383 | symbol for both 32 and 64 bit ELF. */ | |
384 | bed = get_elf_backend_data (abfd); | |
385 | pos = elf_tdata (abfd)->symtab_hdr.sh_offset; | |
386 | pos += ghdr->sh_info * bed->s->sizeof_sym; | |
387 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
388 | || bfd_bread (ename, (bfd_size_type) 4, abfd) != 4) | |
389 | return NULL; | |
390 | iname = H_GET_32 (abfd, ename); | |
391 | return elf_string_from_elf_strtab (abfd, iname); | |
392 | } | |
393 | ||
dbb410c3 AM |
394 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
395 | ||
396 | static boolean | |
397 | setup_group (abfd, hdr, newsect) | |
398 | bfd *abfd; | |
399 | Elf_Internal_Shdr *hdr; | |
400 | asection *newsect; | |
401 | { | |
402 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
403 | ||
404 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
405 | is set to -1 if there are no SHT_GROUP sections. */ | |
406 | if (num_group == 0) | |
407 | { | |
408 | unsigned int i, shnum; | |
409 | ||
410 | /* First count the number of groups. If we have a SHT_GROUP | |
411 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 412 | shnum = elf_numsections (abfd); |
dbb410c3 AM |
413 | num_group = 0; |
414 | for (i = 0; i < shnum; i++) | |
415 | { | |
416 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
417 | if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8) | |
418 | num_group += 1; | |
419 | } | |
420 | ||
421 | if (num_group == 0) | |
973ffd63 | 422 | num_group = (unsigned) -1; |
dbb410c3 AM |
423 | elf_tdata (abfd)->num_group = num_group; |
424 | ||
425 | if (num_group > 0) | |
426 | { | |
427 | /* We keep a list of elf section headers for group sections, | |
428 | so we can find them quickly. */ | |
429 | bfd_size_type amt = num_group * sizeof (Elf_Internal_Shdr *); | |
430 | elf_tdata (abfd)->group_sect_ptr = bfd_alloc (abfd, amt); | |
431 | if (elf_tdata (abfd)->group_sect_ptr == NULL) | |
432 | return false; | |
433 | ||
434 | num_group = 0; | |
435 | for (i = 0; i < shnum; i++) | |
436 | { | |
437 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
438 | if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8) | |
439 | { | |
973ffd63 | 440 | unsigned char *src; |
dbb410c3 AM |
441 | Elf_Internal_Group *dest; |
442 | ||
443 | /* Add to list of sections. */ | |
444 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
445 | num_group += 1; | |
446 | ||
447 | /* Read the raw contents. */ | |
448 | BFD_ASSERT (sizeof (*dest) >= 4); | |
449 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
450 | shdr->contents = bfd_alloc (abfd, amt); | |
451 | if (shdr->contents == NULL | |
452 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
453 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) | |
454 | != shdr->sh_size)) | |
455 | return false; | |
456 | ||
457 | /* Translate raw contents, a flag word followed by an | |
458 | array of elf section indices all in target byte order, | |
459 | to the flag word followed by an array of elf section | |
460 | pointers. */ | |
461 | src = shdr->contents + shdr->sh_size; | |
462 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
463 | while (1) | |
464 | { | |
465 | unsigned int idx; | |
466 | ||
467 | src -= 4; | |
468 | --dest; | |
469 | idx = H_GET_32 (abfd, src); | |
470 | if (src == shdr->contents) | |
471 | { | |
472 | dest->flags = idx; | |
b885599b AM |
473 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
474 | shdr->bfd_section->flags | |
475 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
476 | break; |
477 | } | |
478 | if (idx >= shnum) | |
479 | { | |
480 | ((*_bfd_error_handler) | |
481 | (_("%s: invalid SHT_GROUP entry"), | |
482 | bfd_archive_filename (abfd))); | |
483 | idx = 0; | |
484 | } | |
485 | dest->shdr = elf_elfsections (abfd)[idx]; | |
486 | } | |
487 | } | |
488 | } | |
489 | } | |
490 | } | |
491 | ||
492 | if (num_group != (unsigned) -1) | |
493 | { | |
494 | unsigned int i; | |
495 | ||
496 | for (i = 0; i < num_group; i++) | |
497 | { | |
498 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
499 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |
500 | unsigned int n_elt = shdr->sh_size / 4; | |
501 | ||
502 | /* Look through this group's sections to see if current | |
503 | section is a member. */ | |
504 | while (--n_elt != 0) | |
505 | if ((++idx)->shdr == hdr) | |
506 | { | |
e0e8c97f | 507 | asection *s = NULL; |
dbb410c3 AM |
508 | |
509 | /* We are a member of this group. Go looking through | |
510 | other members to see if any others are linked via | |
511 | next_in_group. */ | |
512 | idx = (Elf_Internal_Group *) shdr->contents; | |
513 | n_elt = shdr->sh_size / 4; | |
514 | while (--n_elt != 0) | |
515 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 516 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
517 | break; |
518 | if (n_elt != 0) | |
519 | { | |
dbb410c3 AM |
520 | /* Snarf the group name from other member, and |
521 | insert current section in circular list. */ | |
945906ff AM |
522 | elf_group_name (newsect) = elf_group_name (s); |
523 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
524 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
525 | } |
526 | else | |
527 | { | |
dbb410c3 AM |
528 | const char *gname; |
529 | ||
b885599b AM |
530 | gname = group_signature (abfd, shdr); |
531 | if (gname == NULL) | |
dbb410c3 | 532 | return false; |
945906ff | 533 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
534 | |
535 | /* Start a circular list with one element. */ | |
945906ff | 536 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 537 | } |
b885599b | 538 | |
dbb410c3 | 539 | if (shdr->bfd_section != NULL) |
945906ff | 540 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 541 | |
dbb410c3 AM |
542 | i = num_group - 1; |
543 | break; | |
544 | } | |
545 | } | |
546 | } | |
547 | ||
945906ff | 548 | if (elf_group_name (newsect) == NULL) |
dbb410c3 AM |
549 | { |
550 | (*_bfd_error_handler) (_("%s: no group info for section %s"), | |
551 | bfd_archive_filename (abfd), newsect->name); | |
552 | } | |
553 | return true; | |
554 | } | |
555 | ||
e61463e1 | 556 | boolean |
b885599b AM |
557 | bfd_elf_discard_group (abfd, group) |
558 | bfd *abfd ATTRIBUTE_UNUSED; | |
559 | asection *group; | |
560 | { | |
561 | asection *first = elf_next_in_group (group); | |
562 | asection *s = first; | |
563 | ||
564 | while (s != NULL) | |
565 | { | |
566 | s->output_section = bfd_abs_section_ptr; | |
567 | s = elf_next_in_group (s); | |
568 | /* These lists are circular. */ | |
569 | if (s == first) | |
570 | break; | |
571 | } | |
e61463e1 | 572 | return true; |
b885599b AM |
573 | } |
574 | ||
252b5132 RH |
575 | /* Make a BFD section from an ELF section. We store a pointer to the |
576 | BFD section in the bfd_section field of the header. */ | |
577 | ||
578 | boolean | |
579 | _bfd_elf_make_section_from_shdr (abfd, hdr, name) | |
580 | bfd *abfd; | |
581 | Elf_Internal_Shdr *hdr; | |
582 | const char *name; | |
583 | { | |
584 | asection *newsect; | |
585 | flagword flags; | |
fa152c49 | 586 | struct elf_backend_data *bed; |
252b5132 RH |
587 | |
588 | if (hdr->bfd_section != NULL) | |
589 | { | |
590 | BFD_ASSERT (strcmp (name, | |
591 | bfd_get_section_name (abfd, hdr->bfd_section)) == 0); | |
592 | return true; | |
593 | } | |
594 | ||
595 | newsect = bfd_make_section_anyway (abfd, name); | |
596 | if (newsect == NULL) | |
597 | return false; | |
598 | ||
599 | newsect->filepos = hdr->sh_offset; | |
600 | ||
601 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
602 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
603 | || ! bfd_set_section_alignment (abfd, newsect, | |
dc810e39 | 604 | bfd_log2 ((bfd_vma) hdr->sh_addralign))) |
252b5132 RH |
605 | return false; |
606 | ||
607 | flags = SEC_NO_FLAGS; | |
608 | if (hdr->sh_type != SHT_NOBITS) | |
609 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 AM |
610 | if (hdr->sh_type == SHT_GROUP) |
611 | flags |= SEC_GROUP | SEC_EXCLUDE; | |
252b5132 RH |
612 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
613 | { | |
614 | flags |= SEC_ALLOC; | |
615 | if (hdr->sh_type != SHT_NOBITS) | |
616 | flags |= SEC_LOAD; | |
617 | } | |
618 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
619 | flags |= SEC_READONLY; | |
620 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
621 | flags |= SEC_CODE; | |
622 | else if ((flags & SEC_LOAD) != 0) | |
623 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
624 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
625 | { | |
626 | flags |= SEC_MERGE; | |
627 | newsect->entsize = hdr->sh_entsize; | |
628 | if ((hdr->sh_flags & SHF_STRINGS) != 0) | |
629 | flags |= SEC_STRINGS; | |
630 | } | |
dbb410c3 AM |
631 | if (hdr->sh_flags & SHF_GROUP) |
632 | if (!setup_group (abfd, hdr, newsect)) | |
633 | return false; | |
13ae64f3 JJ |
634 | if ((hdr->sh_flags & SHF_TLS) != 0) |
635 | flags |= SEC_THREAD_LOCAL; | |
252b5132 RH |
636 | |
637 | /* The debugging sections appear to be recognized only by name, not | |
638 | any sort of flag. */ | |
7a6cc5fb | 639 | { |
dbf48117 | 640 | static const char *debug_sec_names [] = |
7a6cc5fb NC |
641 | { |
642 | ".debug", | |
643 | ".gnu.linkonce.wi.", | |
644 | ".line", | |
645 | ".stab" | |
646 | }; | |
647 | int i; | |
648 | ||
e0e8c97f | 649 | for (i = ARRAY_SIZE (debug_sec_names); i--;) |
7a6cc5fb NC |
650 | if (strncmp (name, debug_sec_names[i], strlen (debug_sec_names[i])) == 0) |
651 | break; | |
652 | ||
653 | if (i >= 0) | |
654 | flags |= SEC_DEBUGGING; | |
655 | } | |
252b5132 RH |
656 | |
657 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
658 | only link a single copy of the section. This is used to support | |
659 | g++. g++ will emit each template expansion in its own section. | |
660 | The symbols will be defined as weak, so that multiple definitions | |
661 | are permitted. The GNU linker extension is to actually discard | |
662 | all but one of the sections. */ | |
b885599b AM |
663 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0 |
664 | && elf_next_in_group (newsect) == NULL) | |
252b5132 RH |
665 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
666 | ||
fa152c49 JW |
667 | bed = get_elf_backend_data (abfd); |
668 | if (bed->elf_backend_section_flags) | |
669 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
670 | return false; | |
671 | ||
252b5132 RH |
672 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
673 | return false; | |
674 | ||
675 | if ((flags & SEC_ALLOC) != 0) | |
676 | { | |
677 | Elf_Internal_Phdr *phdr; | |
678 | unsigned int i; | |
679 | ||
680 | /* Look through the phdrs to see if we need to adjust the lma. | |
681 | If all the p_paddr fields are zero, we ignore them, since | |
682 | some ELF linkers produce such output. */ | |
683 | phdr = elf_tdata (abfd)->phdr; | |
684 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
685 | { | |
686 | if (phdr->p_paddr != 0) | |
687 | break; | |
688 | } | |
689 | if (i < elf_elfheader (abfd)->e_phnum) | |
690 | { | |
691 | phdr = elf_tdata (abfd)->phdr; | |
692 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
693 | { | |
e0e8c97f NC |
694 | /* This section is part of this segment if its file |
695 | offset plus size lies within the segment's memory | |
696 | span and, if the section is loaded, the extent of the | |
697 | loaded data lies within the extent of the segment. | |
bf36db18 NC |
698 | |
699 | Note - we used to check the p_paddr field as well, and | |
700 | refuse to set the LMA if it was 0. This is wrong | |
dba143ef | 701 | though, as a perfectly valid initialised segment can |
bf36db18 | 702 | have a p_paddr of zero. Some architectures, eg ARM, |
dba143ef | 703 | place special significance on the address 0 and |
bf36db18 NC |
704 | executables need to be able to have a segment which |
705 | covers this address. */ | |
252b5132 | 706 | if (phdr->p_type == PT_LOAD |
e0e8c97f NC |
707 | && (bfd_vma) hdr->sh_offset >= phdr->p_offset |
708 | && (hdr->sh_offset + hdr->sh_size | |
709 | <= phdr->p_offset + phdr->p_memsz) | |
252b5132 | 710 | && ((flags & SEC_LOAD) == 0 |
d7866f04 AM |
711 | || (hdr->sh_offset + hdr->sh_size |
712 | <= phdr->p_offset + phdr->p_filesz))) | |
252b5132 | 713 | { |
dba143ef | 714 | if ((flags & SEC_LOAD) == 0) |
d7866f04 AM |
715 | newsect->lma = (phdr->p_paddr |
716 | + hdr->sh_addr - phdr->p_vaddr); | |
dba143ef AM |
717 | else |
718 | /* We used to use the same adjustment for SEC_LOAD | |
719 | sections, but that doesn't work if the segment | |
720 | is packed with code from multiple VMAs. | |
721 | Instead we calculate the section LMA based on | |
722 | the segment LMA. It is assumed that the | |
723 | segment will contain sections with contiguous | |
724 | LMAs, even if the VMAs are not. */ | |
725 | newsect->lma = (phdr->p_paddr | |
726 | + hdr->sh_offset - phdr->p_offset); | |
d7866f04 AM |
727 | |
728 | /* With contiguous segments, we can't tell from file | |
729 | offsets whether a section with zero size should | |
730 | be placed at the end of one segment or the | |
731 | beginning of the next. Decide based on vaddr. */ | |
732 | if (hdr->sh_addr >= phdr->p_vaddr | |
733 | && (hdr->sh_addr + hdr->sh_size | |
734 | <= phdr->p_vaddr + phdr->p_memsz)) | |
735 | break; | |
252b5132 RH |
736 | } |
737 | } | |
738 | } | |
739 | } | |
740 | ||
741 | hdr->bfd_section = newsect; | |
742 | elf_section_data (newsect)->this_hdr = *hdr; | |
743 | ||
744 | return true; | |
745 | } | |
746 | ||
747 | /* | |
748 | INTERNAL_FUNCTION | |
749 | bfd_elf_find_section | |
750 | ||
751 | SYNOPSIS | |
752 | struct elf_internal_shdr *bfd_elf_find_section (bfd *abfd, char *name); | |
753 | ||
754 | DESCRIPTION | |
755 | Helper functions for GDB to locate the string tables. | |
756 | Since BFD hides string tables from callers, GDB needs to use an | |
757 | internal hook to find them. Sun's .stabstr, in particular, | |
758 | isn't even pointed to by the .stab section, so ordinary | |
759 | mechanisms wouldn't work to find it, even if we had some. | |
760 | */ | |
761 | ||
762 | struct elf_internal_shdr * | |
763 | bfd_elf_find_section (abfd, name) | |
c044fabd | 764 | bfd *abfd; |
252b5132 RH |
765 | char *name; |
766 | { | |
767 | Elf_Internal_Shdr **i_shdrp; | |
768 | char *shstrtab; | |
769 | unsigned int max; | |
770 | unsigned int i; | |
771 | ||
772 | i_shdrp = elf_elfsections (abfd); | |
773 | if (i_shdrp != NULL) | |
774 | { | |
9ad5cbcf AM |
775 | shstrtab = bfd_elf_get_str_section (abfd, |
776 | elf_elfheader (abfd)->e_shstrndx); | |
252b5132 RH |
777 | if (shstrtab != NULL) |
778 | { | |
9ad5cbcf | 779 | max = elf_numsections (abfd); |
252b5132 RH |
780 | for (i = 1; i < max; i++) |
781 | if (!strcmp (&shstrtab[i_shdrp[i]->sh_name], name)) | |
782 | return i_shdrp[i]; | |
783 | } | |
784 | } | |
785 | return 0; | |
786 | } | |
787 | ||
788 | const char *const bfd_elf_section_type_names[] = { | |
789 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |
790 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
791 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
792 | }; | |
793 | ||
794 | /* ELF relocs are against symbols. If we are producing relocateable | |
795 | output, and the reloc is against an external symbol, and nothing | |
796 | has given us any additional addend, the resulting reloc will also | |
797 | be against the same symbol. In such a case, we don't want to | |
798 | change anything about the way the reloc is handled, since it will | |
799 | all be done at final link time. Rather than put special case code | |
800 | into bfd_perform_relocation, all the reloc types use this howto | |
801 | function. It just short circuits the reloc if producing | |
802 | relocateable output against an external symbol. */ | |
803 | ||
252b5132 RH |
804 | bfd_reloc_status_type |
805 | bfd_elf_generic_reloc (abfd, | |
806 | reloc_entry, | |
807 | symbol, | |
808 | data, | |
809 | input_section, | |
810 | output_bfd, | |
811 | error_message) | |
7442e600 | 812 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
813 | arelent *reloc_entry; |
814 | asymbol *symbol; | |
7442e600 | 815 | PTR data ATTRIBUTE_UNUSED; |
252b5132 RH |
816 | asection *input_section; |
817 | bfd *output_bfd; | |
7442e600 | 818 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
819 | { |
820 | if (output_bfd != (bfd *) NULL | |
821 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
822 | && (! reloc_entry->howto->partial_inplace | |
823 | || reloc_entry->addend == 0)) | |
824 | { | |
825 | reloc_entry->address += input_section->output_offset; | |
826 | return bfd_reloc_ok; | |
827 | } | |
828 | ||
829 | return bfd_reloc_continue; | |
830 | } | |
831 | \f | |
d3c456e9 JJ |
832 | /* Make sure sec_info_type is cleared if sec_info is cleared too. */ |
833 | ||
834 | static void | |
835 | merge_sections_remove_hook (abfd, sec) | |
836 | bfd *abfd ATTRIBUTE_UNUSED; | |
837 | asection *sec; | |
838 | { | |
839 | struct bfd_elf_section_data *sec_data; | |
840 | ||
841 | sec_data = elf_section_data (sec); | |
842 | BFD_ASSERT (sec_data->sec_info_type == ELF_INFO_TYPE_MERGE); | |
843 | sec_data->sec_info_type = ELF_INFO_TYPE_NONE; | |
844 | } | |
845 | ||
8550eb6e JJ |
846 | /* Finish SHF_MERGE section merging. */ |
847 | ||
848 | boolean | |
849 | _bfd_elf_merge_sections (abfd, info) | |
850 | bfd *abfd; | |
851 | struct bfd_link_info *info; | |
852 | { | |
b0f35f36 | 853 | if (!is_elf_hash_table (info)) |
8ea2e4bd | 854 | return false; |
b0f35f36 | 855 | if (elf_hash_table (info)->merge_info) |
d3c456e9 JJ |
856 | _bfd_merge_sections (abfd, elf_hash_table (info)->merge_info, |
857 | merge_sections_remove_hook); | |
8550eb6e JJ |
858 | return true; |
859 | } | |
2d653fc7 AM |
860 | |
861 | void | |
862 | _bfd_elf_link_just_syms (sec, info) | |
863 | asection *sec; | |
864 | struct bfd_link_info *info; | |
865 | { | |
866 | sec->output_section = bfd_abs_section_ptr; | |
867 | sec->output_offset = sec->vma; | |
868 | if (!is_elf_hash_table (info)) | |
869 | return; | |
870 | ||
871 | elf_section_data (sec)->sec_info_type = ELF_INFO_TYPE_JUST_SYMS; | |
872 | } | |
8550eb6e | 873 | \f |
0ac4564e L |
874 | /* Copy the program header and other data from one object module to |
875 | another. */ | |
252b5132 | 876 | |
2d502050 L |
877 | boolean |
878 | _bfd_elf_copy_private_bfd_data (ibfd, obfd) | |
879 | bfd *ibfd; | |
880 | bfd *obfd; | |
881 | { | |
882 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
883 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
884 | return true; | |
885 | ||
886 | BFD_ASSERT (!elf_flags_init (obfd) | |
887 | || (elf_elfheader (obfd)->e_flags | |
888 | == elf_elfheader (ibfd)->e_flags)); | |
889 | ||
0ac4564e | 890 | elf_gp (obfd) = elf_gp (ibfd); |
2d502050 L |
891 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
892 | elf_flags_init (obfd) = true; | |
893 | return true; | |
894 | } | |
895 | ||
f0b79d91 L |
896 | /* Print out the program headers. */ |
897 | ||
252b5132 RH |
898 | boolean |
899 | _bfd_elf_print_private_bfd_data (abfd, farg) | |
900 | bfd *abfd; | |
901 | PTR farg; | |
902 | { | |
903 | FILE *f = (FILE *) farg; | |
904 | Elf_Internal_Phdr *p; | |
905 | asection *s; | |
906 | bfd_byte *dynbuf = NULL; | |
907 | ||
908 | p = elf_tdata (abfd)->phdr; | |
909 | if (p != NULL) | |
910 | { | |
911 | unsigned int i, c; | |
912 | ||
913 | fprintf (f, _("\nProgram Header:\n")); | |
914 | c = elf_elfheader (abfd)->e_phnum; | |
915 | for (i = 0; i < c; i++, p++) | |
916 | { | |
dc810e39 | 917 | const char *pt; |
252b5132 RH |
918 | char buf[20]; |
919 | ||
920 | switch (p->p_type) | |
921 | { | |
dc810e39 AM |
922 | case PT_NULL: pt = "NULL"; break; |
923 | case PT_LOAD: pt = "LOAD"; break; | |
924 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
925 | case PT_INTERP: pt = "INTERP"; break; | |
926 | case PT_NOTE: pt = "NOTE"; break; | |
927 | case PT_SHLIB: pt = "SHLIB"; break; | |
928 | case PT_PHDR: pt = "PHDR"; break; | |
13ae64f3 | 929 | case PT_TLS: pt = "TLS"; break; |
65765700 | 930 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; |
dc810e39 | 931 | default: sprintf (buf, "0x%lx", p->p_type); pt = buf; break; |
252b5132 | 932 | } |
dc810e39 | 933 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 934 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 935 | fprintf (f, " vaddr 0x"); |
60b89a18 | 936 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 937 | fprintf (f, " paddr 0x"); |
60b89a18 | 938 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
939 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
940 | fprintf (f, " filesz 0x"); | |
60b89a18 | 941 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 942 | fprintf (f, " memsz 0x"); |
60b89a18 | 943 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
944 | fprintf (f, " flags %c%c%c", |
945 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
946 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
947 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
948 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
949 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
950 | fprintf (f, "\n"); |
951 | } | |
952 | } | |
953 | ||
954 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
955 | if (s != NULL) | |
956 | { | |
957 | int elfsec; | |
dc810e39 | 958 | unsigned long shlink; |
252b5132 RH |
959 | bfd_byte *extdyn, *extdynend; |
960 | size_t extdynsize; | |
961 | void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *)); | |
962 | ||
963 | fprintf (f, _("\nDynamic Section:\n")); | |
964 | ||
965 | dynbuf = (bfd_byte *) bfd_malloc (s->_raw_size); | |
966 | if (dynbuf == NULL) | |
967 | goto error_return; | |
968 | if (! bfd_get_section_contents (abfd, s, (PTR) dynbuf, (file_ptr) 0, | |
969 | s->_raw_size)) | |
970 | goto error_return; | |
971 | ||
972 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
973 | if (elfsec == -1) | |
974 | goto error_return; | |
dc810e39 | 975 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
976 | |
977 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
978 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
979 | ||
980 | extdyn = dynbuf; | |
981 | extdynend = extdyn + s->_raw_size; | |
982 | for (; extdyn < extdynend; extdyn += extdynsize) | |
983 | { | |
984 | Elf_Internal_Dyn dyn; | |
985 | const char *name; | |
986 | char ab[20]; | |
987 | boolean stringp; | |
988 | ||
989 | (*swap_dyn_in) (abfd, (PTR) extdyn, &dyn); | |
990 | ||
991 | if (dyn.d_tag == DT_NULL) | |
992 | break; | |
993 | ||
994 | stringp = false; | |
995 | switch (dyn.d_tag) | |
996 | { | |
997 | default: | |
998 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |
999 | name = ab; | |
1000 | break; | |
1001 | ||
1002 | case DT_NEEDED: name = "NEEDED"; stringp = true; break; | |
1003 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; | |
1004 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1005 | case DT_HASH: name = "HASH"; break; | |
1006 | case DT_STRTAB: name = "STRTAB"; break; | |
1007 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1008 | case DT_RELA: name = "RELA"; break; | |
1009 | case DT_RELASZ: name = "RELASZ"; break; | |
1010 | case DT_RELAENT: name = "RELAENT"; break; | |
1011 | case DT_STRSZ: name = "STRSZ"; break; | |
1012 | case DT_SYMENT: name = "SYMENT"; break; | |
1013 | case DT_INIT: name = "INIT"; break; | |
1014 | case DT_FINI: name = "FINI"; break; | |
1015 | case DT_SONAME: name = "SONAME"; stringp = true; break; | |
1016 | case DT_RPATH: name = "RPATH"; stringp = true; break; | |
1017 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; | |
1018 | case DT_REL: name = "REL"; break; | |
1019 | case DT_RELSZ: name = "RELSZ"; break; | |
1020 | case DT_RELENT: name = "RELENT"; break; | |
1021 | case DT_PLTREL: name = "PLTREL"; break; | |
1022 | case DT_DEBUG: name = "DEBUG"; break; | |
1023 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1024 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1025 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1026 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1027 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1028 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1029 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
1030 | case DT_RUNPATH: name = "RUNPATH"; stringp = true; break; | |
1031 | case DT_FLAGS: name = "FLAGS"; break; | |
1032 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1033 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1034 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1035 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1036 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1037 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1038 | case DT_FEATURE: name = "FEATURE"; break; | |
1039 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1040 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1041 | case DT_SYMINENT: name = "SYMINENT"; break; | |
36a30e65 L |
1042 | case DT_CONFIG: name = "CONFIG"; stringp = true; break; |
1043 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = true; break; | |
1044 | case DT_AUDIT: name = "AUDIT"; stringp = true; break; | |
94558834 L |
1045 | case DT_PLTPAD: name = "PLTPAD"; break; |
1046 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1047 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1048 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1049 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1050 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1051 | case DT_VERSYM: name = "VERSYM"; break; |
1052 | case DT_VERDEF: name = "VERDEF"; break; | |
1053 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1054 | case DT_VERNEED: name = "VERNEED"; break; | |
1055 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
94558834 L |
1056 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = true; break; |
1057 | case DT_USED: name = "USED"; break; | |
1058 | case DT_FILTER: name = "FILTER"; stringp = true; break; | |
252b5132 RH |
1059 | } |
1060 | ||
1061 | fprintf (f, " %-11s ", name); | |
1062 | if (! stringp) | |
1063 | fprintf (f, "0x%lx", (unsigned long) dyn.d_un.d_val); | |
1064 | else | |
1065 | { | |
1066 | const char *string; | |
dc810e39 | 1067 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1068 | |
dc810e39 | 1069 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1070 | if (string == NULL) |
1071 | goto error_return; | |
1072 | fprintf (f, "%s", string); | |
1073 | } | |
1074 | fprintf (f, "\n"); | |
1075 | } | |
1076 | ||
1077 | free (dynbuf); | |
1078 | dynbuf = NULL; | |
1079 | } | |
1080 | ||
1081 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1082 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1083 | { | |
1084 | if (! _bfd_elf_slurp_version_tables (abfd)) | |
1085 | return false; | |
1086 | } | |
1087 | ||
1088 | if (elf_dynverdef (abfd) != 0) | |
1089 | { | |
1090 | Elf_Internal_Verdef *t; | |
1091 | ||
1092 | fprintf (f, _("\nVersion definitions:\n")); | |
1093 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1094 | { | |
1095 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
1096 | t->vd_flags, t->vd_hash, t->vd_nodename); | |
1097 | if (t->vd_auxptr->vda_nextptr != NULL) | |
1098 | { | |
1099 | Elf_Internal_Verdaux *a; | |
1100 | ||
1101 | fprintf (f, "\t"); | |
1102 | for (a = t->vd_auxptr->vda_nextptr; | |
1103 | a != NULL; | |
1104 | a = a->vda_nextptr) | |
1105 | fprintf (f, "%s ", a->vda_nodename); | |
1106 | fprintf (f, "\n"); | |
1107 | } | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | if (elf_dynverref (abfd) != 0) | |
1112 | { | |
1113 | Elf_Internal_Verneed *t; | |
1114 | ||
1115 | fprintf (f, _("\nVersion References:\n")); | |
1116 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1117 | { | |
1118 | Elf_Internal_Vernaux *a; | |
1119 | ||
1120 | fprintf (f, _(" required from %s:\n"), t->vn_filename); | |
1121 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1122 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
1123 | a->vna_flags, a->vna_other, a->vna_nodename); | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | return true; | |
1128 | ||
1129 | error_return: | |
1130 | if (dynbuf != NULL) | |
1131 | free (dynbuf); | |
1132 | return false; | |
1133 | } | |
1134 | ||
1135 | /* Display ELF-specific fields of a symbol. */ | |
1136 | ||
1137 | void | |
1138 | bfd_elf_print_symbol (abfd, filep, symbol, how) | |
1139 | bfd *abfd; | |
1140 | PTR filep; | |
1141 | asymbol *symbol; | |
1142 | bfd_print_symbol_type how; | |
1143 | { | |
1144 | FILE *file = (FILE *) filep; | |
1145 | switch (how) | |
1146 | { | |
1147 | case bfd_print_symbol_name: | |
1148 | fprintf (file, "%s", symbol->name); | |
1149 | break; | |
1150 | case bfd_print_symbol_more: | |
1151 | fprintf (file, "elf "); | |
60b89a18 | 1152 | bfd_fprintf_vma (abfd, file, symbol->value); |
252b5132 RH |
1153 | fprintf (file, " %lx", (long) symbol->flags); |
1154 | break; | |
1155 | case bfd_print_symbol_all: | |
1156 | { | |
4e8a9624 AM |
1157 | const char *section_name; |
1158 | const char *name = NULL; | |
587ff49e | 1159 | struct elf_backend_data *bed; |
7a13edea | 1160 | unsigned char st_other; |
dbb410c3 | 1161 | bfd_vma val; |
c044fabd | 1162 | |
252b5132 | 1163 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1164 | |
1165 | bed = get_elf_backend_data (abfd); | |
1166 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1167 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1168 | |
1169 | if (name == NULL) | |
1170 | { | |
7ee38065 | 1171 | name = symbol->name; |
60b89a18 | 1172 | bfd_print_symbol_vandf (abfd, (PTR) file, symbol); |
587ff49e RH |
1173 | } |
1174 | ||
252b5132 RH |
1175 | fprintf (file, " %s\t", section_name); |
1176 | /* Print the "other" value for a symbol. For common symbols, | |
1177 | we've already printed the size; now print the alignment. | |
1178 | For other symbols, we have no specified alignment, and | |
1179 | we've printed the address; now print the size. */ | |
dbb410c3 AM |
1180 | if (bfd_is_com_section (symbol->section)) |
1181 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; | |
1182 | else | |
1183 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1184 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1185 | |
1186 | /* If we have version information, print it. */ | |
1187 | if (elf_tdata (abfd)->dynversym_section != 0 | |
1188 | && (elf_tdata (abfd)->dynverdef_section != 0 | |
1189 | || elf_tdata (abfd)->dynverref_section != 0)) | |
1190 | { | |
1191 | unsigned int vernum; | |
1192 | const char *version_string; | |
1193 | ||
1194 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION; | |
1195 | ||
1196 | if (vernum == 0) | |
1197 | version_string = ""; | |
1198 | else if (vernum == 1) | |
1199 | version_string = "Base"; | |
1200 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1201 | version_string = | |
1202 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1203 | else | |
1204 | { | |
1205 | Elf_Internal_Verneed *t; | |
1206 | ||
1207 | version_string = ""; | |
1208 | for (t = elf_tdata (abfd)->verref; | |
1209 | t != NULL; | |
1210 | t = t->vn_nextref) | |
1211 | { | |
1212 | Elf_Internal_Vernaux *a; | |
1213 | ||
1214 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1215 | { | |
1216 | if (a->vna_other == vernum) | |
1217 | { | |
1218 | version_string = a->vna_nodename; | |
1219 | break; | |
1220 | } | |
1221 | } | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN) == 0) | |
1226 | fprintf (file, " %-11s", version_string); | |
1227 | else | |
1228 | { | |
1229 | int i; | |
1230 | ||
1231 | fprintf (file, " (%s)", version_string); | |
1232 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1233 | putc (' ', file); | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1238 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1239 | |
7a13edea NC |
1240 | switch (st_other) |
1241 | { | |
1242 | case 0: break; | |
1243 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1244 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1245 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1246 | default: | |
1247 | /* Some other non-defined flags are also present, so print | |
1248 | everything hex. */ | |
1249 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1250 | } | |
252b5132 | 1251 | |
587ff49e | 1252 | fprintf (file, " %s", name); |
252b5132 RH |
1253 | } |
1254 | break; | |
1255 | } | |
1256 | } | |
1257 | \f | |
1258 | /* Create an entry in an ELF linker hash table. */ | |
1259 | ||
1260 | struct bfd_hash_entry * | |
1261 | _bfd_elf_link_hash_newfunc (entry, table, string) | |
1262 | struct bfd_hash_entry *entry; | |
1263 | struct bfd_hash_table *table; | |
1264 | const char *string; | |
1265 | { | |
252b5132 RH |
1266 | /* Allocate the structure if it has not already been allocated by a |
1267 | subclass. */ | |
51b64d56 AM |
1268 | if (entry == NULL) |
1269 | { | |
1270 | entry = bfd_hash_allocate (table, sizeof (struct elf_link_hash_entry)); | |
1271 | if (entry == NULL) | |
1272 | return entry; | |
1273 | } | |
252b5132 RH |
1274 | |
1275 | /* Call the allocation method of the superclass. */ | |
51b64d56 AM |
1276 | entry = _bfd_link_hash_newfunc (entry, table, string); |
1277 | if (entry != NULL) | |
252b5132 | 1278 | { |
51b64d56 AM |
1279 | struct elf_link_hash_entry *ret = (struct elf_link_hash_entry *) entry; |
1280 | struct elf_link_hash_table *htab = (struct elf_link_hash_table *) table; | |
1281 | ||
252b5132 RH |
1282 | /* Set local fields. */ |
1283 | ret->indx = -1; | |
1284 | ret->size = 0; | |
1285 | ret->dynindx = -1; | |
1286 | ret->dynstr_index = 0; | |
1287 | ret->weakdef = NULL; | |
51b64d56 AM |
1288 | ret->got.refcount = htab->init_refcount; |
1289 | ret->plt.refcount = htab->init_refcount; | |
1290 | ret->linker_section_pointer = NULL; | |
252b5132 RH |
1291 | ret->verinfo.verdef = NULL; |
1292 | ret->vtable_entries_used = NULL; | |
1293 | ret->vtable_entries_size = 0; | |
1294 | ret->vtable_parent = NULL; | |
1295 | ret->type = STT_NOTYPE; | |
1296 | ret->other = 0; | |
1297 | /* Assume that we have been called by a non-ELF symbol reader. | |
1298 | This flag is then reset by the code which reads an ELF input | |
1299 | file. This ensures that a symbol created by a non-ELF symbol | |
1300 | reader will have the flag set correctly. */ | |
1301 | ret->elf_link_hash_flags = ELF_LINK_NON_ELF; | |
1302 | } | |
1303 | ||
51b64d56 | 1304 | return entry; |
252b5132 RH |
1305 | } |
1306 | ||
2920b85c | 1307 | /* Copy data from an indirect symbol to its direct symbol, hiding the |
0a991dfe | 1308 | old indirect symbol. Also used for copying flags to a weakdef. */ |
2920b85c | 1309 | |
c61b8717 RH |
1310 | void |
1311 | _bfd_elf_link_hash_copy_indirect (dir, ind) | |
2920b85c RH |
1312 | struct elf_link_hash_entry *dir, *ind; |
1313 | { | |
3c3e9281 AM |
1314 | bfd_signed_vma tmp; |
1315 | ||
2920b85c RH |
1316 | /* Copy down any references that we may have already seen to the |
1317 | symbol which just became indirect. */ | |
1318 | ||
1319 | dir->elf_link_hash_flags |= | |
1320 | (ind->elf_link_hash_flags | |
1321 | & (ELF_LINK_HASH_REF_DYNAMIC | |
1322 | | ELF_LINK_HASH_REF_REGULAR | |
1323 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
1324 | | ELF_LINK_NON_GOT_REF)); | |
1325 | ||
1e370bd2 | 1326 | if (ind->root.type != bfd_link_hash_indirect) |
0a991dfe AM |
1327 | return; |
1328 | ||
51b64d56 | 1329 | /* Copy over the global and procedure linkage table refcount entries. |
2920b85c | 1330 | These may have been already set up by a check_relocs routine. */ |
3c3e9281 AM |
1331 | tmp = dir->got.refcount; |
1332 | if (tmp <= 0) | |
2920b85c | 1333 | { |
51b64d56 | 1334 | dir->got.refcount = ind->got.refcount; |
3c3e9281 | 1335 | ind->got.refcount = tmp; |
2920b85c | 1336 | } |
3c3e9281 AM |
1337 | else |
1338 | BFD_ASSERT (ind->got.refcount <= 0); | |
2920b85c | 1339 | |
3c3e9281 AM |
1340 | tmp = dir->plt.refcount; |
1341 | if (tmp <= 0) | |
2920b85c | 1342 | { |
51b64d56 | 1343 | dir->plt.refcount = ind->plt.refcount; |
3c3e9281 | 1344 | ind->plt.refcount = tmp; |
2920b85c | 1345 | } |
3c3e9281 AM |
1346 | else |
1347 | BFD_ASSERT (ind->plt.refcount <= 0); | |
2920b85c RH |
1348 | |
1349 | if (dir->dynindx == -1) | |
1350 | { | |
1351 | dir->dynindx = ind->dynindx; | |
1352 | dir->dynstr_index = ind->dynstr_index; | |
1353 | ind->dynindx = -1; | |
1354 | ind->dynstr_index = 0; | |
1355 | } | |
3c3e9281 AM |
1356 | else |
1357 | BFD_ASSERT (ind->dynindx == -1); | |
2920b85c RH |
1358 | } |
1359 | ||
c61b8717 | 1360 | void |
e5094212 AM |
1361 | _bfd_elf_link_hash_hide_symbol (info, h, force_local) |
1362 | struct bfd_link_info *info; | |
2920b85c | 1363 | struct elf_link_hash_entry *h; |
e5094212 | 1364 | boolean force_local; |
2920b85c | 1365 | { |
2920b85c | 1366 | h->plt.offset = (bfd_vma) -1; |
e5094212 AM |
1367 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
1368 | if (force_local) | |
1369 | { | |
1370 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
1371 | if (h->dynindx != -1) | |
1372 | { | |
1373 | h->dynindx = -1; | |
1374 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1375 | h->dynstr_index); | |
1376 | } | |
1377 | } | |
2920b85c RH |
1378 | } |
1379 | ||
252b5132 RH |
1380 | /* Initialize an ELF linker hash table. */ |
1381 | ||
1382 | boolean | |
1383 | _bfd_elf_link_hash_table_init (table, abfd, newfunc) | |
1384 | struct elf_link_hash_table *table; | |
1385 | bfd *abfd; | |
1386 | struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *, | |
1387 | struct bfd_hash_table *, | |
1388 | const char *)); | |
1389 | { | |
8ea2e4bd NC |
1390 | boolean ret; |
1391 | ||
252b5132 RH |
1392 | table->dynamic_sections_created = false; |
1393 | table->dynobj = NULL; | |
51b64d56 | 1394 | table->init_refcount = get_elf_backend_data (abfd)->can_refcount - 1; |
252b5132 RH |
1395 | /* The first dynamic symbol is a dummy. */ |
1396 | table->dynsymcount = 1; | |
1397 | table->dynstr = NULL; | |
1398 | table->bucketcount = 0; | |
1399 | table->needed = NULL; | |
a963dc6a | 1400 | table->runpath = NULL; |
252b5132 RH |
1401 | table->hgot = NULL; |
1402 | table->stab_info = NULL; | |
f5fa8ca2 | 1403 | table->merge_info = NULL; |
1ae00f9d | 1404 | table->dynlocal = NULL; |
8ea2e4bd NC |
1405 | ret = _bfd_link_hash_table_init (& table->root, abfd, newfunc); |
1406 | table->root.type = bfd_link_elf_hash_table; | |
1407 | ||
1408 | return ret; | |
252b5132 RH |
1409 | } |
1410 | ||
1411 | /* Create an ELF linker hash table. */ | |
1412 | ||
1413 | struct bfd_link_hash_table * | |
1414 | _bfd_elf_link_hash_table_create (abfd) | |
1415 | bfd *abfd; | |
1416 | { | |
1417 | struct elf_link_hash_table *ret; | |
dc810e39 | 1418 | bfd_size_type amt = sizeof (struct elf_link_hash_table); |
252b5132 | 1419 | |
e2d34d7d | 1420 | ret = (struct elf_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
1421 | if (ret == (struct elf_link_hash_table *) NULL) |
1422 | return NULL; | |
1423 | ||
1424 | if (! _bfd_elf_link_hash_table_init (ret, abfd, _bfd_elf_link_hash_newfunc)) | |
1425 | { | |
e2d34d7d | 1426 | free (ret); |
252b5132 RH |
1427 | return NULL; |
1428 | } | |
1429 | ||
1430 | return &ret->root; | |
1431 | } | |
1432 | ||
1433 | /* This is a hook for the ELF emulation code in the generic linker to | |
1434 | tell the backend linker what file name to use for the DT_NEEDED | |
1435 | entry for a dynamic object. The generic linker passes name as an | |
1436 | empty string to indicate that no DT_NEEDED entry should be made. */ | |
1437 | ||
1438 | void | |
1439 | bfd_elf_set_dt_needed_name (abfd, name) | |
1440 | bfd *abfd; | |
1441 | const char *name; | |
1442 | { | |
1443 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1444 | && bfd_get_format (abfd) == bfd_object) | |
1445 | elf_dt_name (abfd) = name; | |
1446 | } | |
1447 | ||
74816898 L |
1448 | void |
1449 | bfd_elf_set_dt_needed_soname (abfd, name) | |
1450 | bfd *abfd; | |
1451 | const char *name; | |
1452 | { | |
1453 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1454 | && bfd_get_format (abfd) == bfd_object) | |
1455 | elf_dt_soname (abfd) = name; | |
1456 | } | |
1457 | ||
252b5132 RH |
1458 | /* Get the list of DT_NEEDED entries for a link. This is a hook for |
1459 | the linker ELF emulation code. */ | |
1460 | ||
1461 | struct bfd_link_needed_list * | |
1462 | bfd_elf_get_needed_list (abfd, info) | |
7442e600 | 1463 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1464 | struct bfd_link_info *info; |
1465 | { | |
1466 | if (info->hash->creator->flavour != bfd_target_elf_flavour) | |
1467 | return NULL; | |
1468 | return elf_hash_table (info)->needed; | |
1469 | } | |
1470 | ||
a963dc6a L |
1471 | /* Get the list of DT_RPATH/DT_RUNPATH entries for a link. This is a |
1472 | hook for the linker ELF emulation code. */ | |
1473 | ||
1474 | struct bfd_link_needed_list * | |
1475 | bfd_elf_get_runpath_list (abfd, info) | |
1476 | bfd *abfd ATTRIBUTE_UNUSED; | |
1477 | struct bfd_link_info *info; | |
1478 | { | |
1479 | if (info->hash->creator->flavour != bfd_target_elf_flavour) | |
1480 | return NULL; | |
1481 | return elf_hash_table (info)->runpath; | |
1482 | } | |
1483 | ||
252b5132 RH |
1484 | /* Get the name actually used for a dynamic object for a link. This |
1485 | is the SONAME entry if there is one. Otherwise, it is the string | |
1486 | passed to bfd_elf_set_dt_needed_name, or it is the filename. */ | |
1487 | ||
1488 | const char * | |
1489 | bfd_elf_get_dt_soname (abfd) | |
1490 | bfd *abfd; | |
1491 | { | |
1492 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
1493 | && bfd_get_format (abfd) == bfd_object) | |
1494 | return elf_dt_name (abfd); | |
1495 | return NULL; | |
1496 | } | |
1497 | ||
1498 | /* Get the list of DT_NEEDED entries from a BFD. This is a hook for | |
1499 | the ELF linker emulation code. */ | |
1500 | ||
1501 | boolean | |
1502 | bfd_elf_get_bfd_needed_list (abfd, pneeded) | |
1503 | bfd *abfd; | |
1504 | struct bfd_link_needed_list **pneeded; | |
1505 | { | |
1506 | asection *s; | |
1507 | bfd_byte *dynbuf = NULL; | |
1508 | int elfsec; | |
dc810e39 | 1509 | unsigned long shlink; |
252b5132 RH |
1510 | bfd_byte *extdyn, *extdynend; |
1511 | size_t extdynsize; | |
1512 | void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *)); | |
1513 | ||
1514 | *pneeded = NULL; | |
1515 | ||
1516 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour | |
1517 | || bfd_get_format (abfd) != bfd_object) | |
1518 | return true; | |
1519 | ||
1520 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1521 | if (s == NULL || s->_raw_size == 0) | |
1522 | return true; | |
1523 | ||
1524 | dynbuf = (bfd_byte *) bfd_malloc (s->_raw_size); | |
1525 | if (dynbuf == NULL) | |
1526 | goto error_return; | |
1527 | ||
1528 | if (! bfd_get_section_contents (abfd, s, (PTR) dynbuf, (file_ptr) 0, | |
1529 | s->_raw_size)) | |
1530 | goto error_return; | |
1531 | ||
1532 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
1533 | if (elfsec == -1) | |
1534 | goto error_return; | |
1535 | ||
dc810e39 | 1536 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1537 | |
1538 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1539 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1540 | ||
1541 | extdyn = dynbuf; | |
1542 | extdynend = extdyn + s->_raw_size; | |
1543 | for (; extdyn < extdynend; extdyn += extdynsize) | |
1544 | { | |
1545 | Elf_Internal_Dyn dyn; | |
1546 | ||
1547 | (*swap_dyn_in) (abfd, (PTR) extdyn, &dyn); | |
1548 | ||
1549 | if (dyn.d_tag == DT_NULL) | |
1550 | break; | |
1551 | ||
1552 | if (dyn.d_tag == DT_NEEDED) | |
1553 | { | |
1554 | const char *string; | |
1555 | struct bfd_link_needed_list *l; | |
dc810e39 AM |
1556 | unsigned int tagv = dyn.d_un.d_val; |
1557 | bfd_size_type amt; | |
252b5132 | 1558 | |
dc810e39 | 1559 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1560 | if (string == NULL) |
1561 | goto error_return; | |
1562 | ||
dc810e39 AM |
1563 | amt = sizeof *l; |
1564 | l = (struct bfd_link_needed_list *) bfd_alloc (abfd, amt); | |
252b5132 RH |
1565 | if (l == NULL) |
1566 | goto error_return; | |
1567 | ||
1568 | l->by = abfd; | |
1569 | l->name = string; | |
1570 | l->next = *pneeded; | |
1571 | *pneeded = l; | |
1572 | } | |
1573 | } | |
1574 | ||
1575 | free (dynbuf); | |
1576 | ||
1577 | return true; | |
1578 | ||
1579 | error_return: | |
1580 | if (dynbuf != NULL) | |
1581 | free (dynbuf); | |
1582 | return false; | |
1583 | } | |
1584 | \f | |
1585 | /* Allocate an ELF string table--force the first byte to be zero. */ | |
1586 | ||
1587 | struct bfd_strtab_hash * | |
1588 | _bfd_elf_stringtab_init () | |
1589 | { | |
1590 | struct bfd_strtab_hash *ret; | |
1591 | ||
1592 | ret = _bfd_stringtab_init (); | |
1593 | if (ret != NULL) | |
1594 | { | |
1595 | bfd_size_type loc; | |
1596 | ||
1597 | loc = _bfd_stringtab_add (ret, "", true, false); | |
1598 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1); | |
1599 | if (loc == (bfd_size_type) -1) | |
1600 | { | |
1601 | _bfd_stringtab_free (ret); | |
1602 | ret = NULL; | |
1603 | } | |
1604 | } | |
1605 | return ret; | |
1606 | } | |
1607 | \f | |
1608 | /* ELF .o/exec file reading */ | |
1609 | ||
c044fabd | 1610 | /* Create a new bfd section from an ELF section header. */ |
252b5132 RH |
1611 | |
1612 | boolean | |
1613 | bfd_section_from_shdr (abfd, shindex) | |
1614 | bfd *abfd; | |
1615 | unsigned int shindex; | |
1616 | { | |
1617 | Elf_Internal_Shdr *hdr = elf_elfsections (abfd)[shindex]; | |
1618 | Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd); | |
1619 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
90937f86 | 1620 | const char *name; |
252b5132 RH |
1621 | |
1622 | name = elf_string_from_elf_strtab (abfd, hdr->sh_name); | |
1623 | ||
1624 | switch (hdr->sh_type) | |
1625 | { | |
1626 | case SHT_NULL: | |
1627 | /* Inactive section. Throw it away. */ | |
1628 | return true; | |
1629 | ||
1630 | case SHT_PROGBITS: /* Normal section with contents. */ | |
1631 | case SHT_DYNAMIC: /* Dynamic linking information. */ | |
1632 | case SHT_NOBITS: /* .bss section. */ | |
1633 | case SHT_HASH: /* .hash section. */ | |
1634 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
1635 | case SHT_INIT_ARRAY: /* .init_array section. */ |
1636 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
1637 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
252b5132 RH |
1638 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); |
1639 | ||
1640 | case SHT_SYMTAB: /* A symbol table */ | |
1641 | if (elf_onesymtab (abfd) == shindex) | |
1642 | return true; | |
1643 | ||
1644 | BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym); | |
1645 | BFD_ASSERT (elf_onesymtab (abfd) == 0); | |
1646 | elf_onesymtab (abfd) = shindex; | |
1647 | elf_tdata (abfd)->symtab_hdr = *hdr; | |
1648 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->symtab_hdr; | |
1649 | abfd->flags |= HAS_SYMS; | |
1650 | ||
1651 | /* Sometimes a shared object will map in the symbol table. If | |
1652 | SHF_ALLOC is set, and this is a shared object, then we also | |
1653 | treat this section as a BFD section. We can not base the | |
1654 | decision purely on SHF_ALLOC, because that flag is sometimes | |
1655 | set in a relocateable object file, which would confuse the | |
1656 | linker. */ | |
1657 | if ((hdr->sh_flags & SHF_ALLOC) != 0 | |
1658 | && (abfd->flags & DYNAMIC) != 0 | |
1659 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
1660 | return false; | |
1661 | ||
1662 | return true; | |
1663 | ||
1664 | case SHT_DYNSYM: /* A dynamic symbol table */ | |
1665 | if (elf_dynsymtab (abfd) == shindex) | |
1666 | return true; | |
1667 | ||
1668 | BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym); | |
1669 | BFD_ASSERT (elf_dynsymtab (abfd) == 0); | |
1670 | elf_dynsymtab (abfd) = shindex; | |
1671 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
1672 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1673 | abfd->flags |= HAS_SYMS; | |
1674 | ||
1675 | /* Besides being a symbol table, we also treat this as a regular | |
1676 | section, so that objcopy can handle it. */ | |
1677 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1678 | ||
9ad5cbcf AM |
1679 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */ |
1680 | if (elf_symtab_shndx (abfd) == shindex) | |
1681 | return true; | |
1682 | ||
1683 | /* Get the associated symbol table. */ | |
1684 | if (! bfd_section_from_shdr (abfd, hdr->sh_link) | |
1685 | || hdr->sh_link != elf_onesymtab (abfd)) | |
1686 | return false; | |
1687 | ||
1688 | elf_symtab_shndx (abfd) = shindex; | |
1689 | elf_tdata (abfd)->symtab_shndx_hdr = *hdr; | |
1690 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; | |
1691 | return true; | |
1692 | ||
252b5132 RH |
1693 | case SHT_STRTAB: /* A string table */ |
1694 | if (hdr->bfd_section != NULL) | |
1695 | return true; | |
1696 | if (ehdr->e_shstrndx == shindex) | |
1697 | { | |
1698 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
1699 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
1700 | return true; | |
1701 | } | |
1702 | { | |
9ad5cbcf | 1703 | unsigned int i, num_sec; |
252b5132 | 1704 | |
9ad5cbcf AM |
1705 | num_sec = elf_numsections (abfd); |
1706 | for (i = 1; i < num_sec; i++) | |
252b5132 RH |
1707 | { |
1708 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
1709 | if (hdr2->sh_link == shindex) | |
1710 | { | |
1711 | if (! bfd_section_from_shdr (abfd, i)) | |
1712 | return false; | |
1713 | if (elf_onesymtab (abfd) == i) | |
1714 | { | |
1715 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
1716 | elf_elfsections (abfd)[shindex] = | |
1717 | &elf_tdata (abfd)->strtab_hdr; | |
1718 | return true; | |
1719 | } | |
1720 | if (elf_dynsymtab (abfd) == i) | |
1721 | { | |
1722 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
1723 | elf_elfsections (abfd)[shindex] = hdr = | |
1724 | &elf_tdata (abfd)->dynstrtab_hdr; | |
1725 | /* We also treat this as a regular section, so | |
1726 | that objcopy can handle it. */ | |
1727 | break; | |
1728 | } | |
1729 | #if 0 /* Not handling other string tables specially right now. */ | |
1730 | hdr2 = elf_elfsections (abfd)[i]; /* in case it moved */ | |
1731 | /* We have a strtab for some random other section. */ | |
1732 | newsect = (asection *) hdr2->bfd_section; | |
1733 | if (!newsect) | |
1734 | break; | |
1735 | hdr->bfd_section = newsect; | |
1736 | hdr2 = &elf_section_data (newsect)->str_hdr; | |
1737 | *hdr2 = *hdr; | |
1738 | elf_elfsections (abfd)[shindex] = hdr2; | |
1739 | #endif | |
1740 | } | |
1741 | } | |
1742 | } | |
1743 | ||
1744 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1745 | ||
1746 | case SHT_REL: | |
1747 | case SHT_RELA: | |
1748 | /* *These* do a lot of work -- but build no sections! */ | |
1749 | { | |
1750 | asection *target_sect; | |
1751 | Elf_Internal_Shdr *hdr2; | |
9ad5cbcf | 1752 | unsigned int num_sec = elf_numsections (abfd); |
252b5132 | 1753 | |
03ae5f59 | 1754 | /* Check for a bogus link to avoid crashing. */ |
9ad5cbcf AM |
1755 | if ((hdr->sh_link >= SHN_LORESERVE && hdr->sh_link <= SHN_HIRESERVE) |
1756 | || hdr->sh_link >= num_sec) | |
03ae5f59 ILT |
1757 | { |
1758 | ((*_bfd_error_handler) | |
1759 | (_("%s: invalid link %lu for reloc section %s (index %u)"), | |
8f615d07 | 1760 | bfd_archive_filename (abfd), hdr->sh_link, name, shindex)); |
03ae5f59 ILT |
1761 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); |
1762 | } | |
1763 | ||
252b5132 RH |
1764 | /* For some incomprehensible reason Oracle distributes |
1765 | libraries for Solaris in which some of the objects have | |
1766 | bogus sh_link fields. It would be nice if we could just | |
1767 | reject them, but, unfortunately, some people need to use | |
1768 | them. We scan through the section headers; if we find only | |
1769 | one suitable symbol table, we clobber the sh_link to point | |
1770 | to it. I hope this doesn't break anything. */ | |
1771 | if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
1772 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) | |
1773 | { | |
9ad5cbcf | 1774 | unsigned int scan; |
252b5132 RH |
1775 | int found; |
1776 | ||
1777 | found = 0; | |
9ad5cbcf | 1778 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
1779 | { |
1780 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
1781 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
1782 | { | |
1783 | if (found != 0) | |
1784 | { | |
1785 | found = 0; | |
1786 | break; | |
1787 | } | |
1788 | found = scan; | |
1789 | } | |
1790 | } | |
1791 | if (found != 0) | |
1792 | hdr->sh_link = found; | |
1793 | } | |
1794 | ||
1795 | /* Get the symbol table. */ | |
1796 | if (elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB | |
1797 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) | |
1798 | return false; | |
1799 | ||
1800 | /* If this reloc section does not use the main symbol table we | |
1801 | don't treat it as a reloc section. BFD can't adequately | |
1802 | represent such a section, so at least for now, we don't | |
c044fabd | 1803 | try. We just present it as a normal section. We also |
60bcf0fa | 1804 | can't use it as a reloc section if it points to the null |
c044fabd | 1805 | section. */ |
60bcf0fa | 1806 | if (hdr->sh_link != elf_onesymtab (abfd) || hdr->sh_info == SHN_UNDEF) |
252b5132 RH |
1807 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); |
1808 | ||
1809 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
1810 | return false; | |
1811 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); | |
1812 | if (target_sect == NULL) | |
1813 | return false; | |
1814 | ||
1815 | if ((target_sect->flags & SEC_RELOC) == 0 | |
1816 | || target_sect->reloc_count == 0) | |
1817 | hdr2 = &elf_section_data (target_sect)->rel_hdr; | |
1818 | else | |
1819 | { | |
dc810e39 | 1820 | bfd_size_type amt; |
252b5132 | 1821 | BFD_ASSERT (elf_section_data (target_sect)->rel_hdr2 == NULL); |
dc810e39 AM |
1822 | amt = sizeof (*hdr2); |
1823 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
252b5132 RH |
1824 | elf_section_data (target_sect)->rel_hdr2 = hdr2; |
1825 | } | |
1826 | *hdr2 = *hdr; | |
1827 | elf_elfsections (abfd)[shindex] = hdr2; | |
d9bc7a44 | 1828 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr); |
252b5132 RH |
1829 | target_sect->flags |= SEC_RELOC; |
1830 | target_sect->relocation = NULL; | |
1831 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
1832 | /* In the section to which the relocations apply, mark whether |
1833 | its relocations are of the REL or RELA variety. */ | |
72730e0c AM |
1834 | if (hdr->sh_size != 0) |
1835 | elf_section_data (target_sect)->use_rela_p | |
1836 | = (hdr->sh_type == SHT_RELA); | |
252b5132 RH |
1837 | abfd->flags |= HAS_RELOC; |
1838 | return true; | |
1839 | } | |
1840 | break; | |
1841 | ||
1842 | case SHT_GNU_verdef: | |
1843 | elf_dynverdef (abfd) = shindex; | |
1844 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
1845 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1846 | break; | |
1847 | ||
1848 | case SHT_GNU_versym: | |
1849 | elf_dynversym (abfd) = shindex; | |
1850 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
1851 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1852 | break; | |
1853 | ||
1854 | case SHT_GNU_verneed: | |
1855 | elf_dynverref (abfd) = shindex; | |
1856 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
1857 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |
1858 | break; | |
1859 | ||
1860 | case SHT_SHLIB: | |
1861 | return true; | |
1862 | ||
dbb410c3 | 1863 | case SHT_GROUP: |
b885599b AM |
1864 | /* We need a BFD section for objcopy and relocatable linking, |
1865 | and it's handy to have the signature available as the section | |
1866 | name. */ | |
1867 | name = group_signature (abfd, hdr); | |
1868 | if (name == NULL) | |
1869 | return false; | |
dbb410c3 AM |
1870 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name)) |
1871 | return false; | |
1872 | if (hdr->contents != NULL) | |
1873 | { | |
1874 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |
1875 | unsigned int n_elt = hdr->sh_size / 4; | |
1876 | asection *s; | |
1877 | ||
b885599b AM |
1878 | if (idx->flags & GRP_COMDAT) |
1879 | hdr->bfd_section->flags | |
1880 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
1881 | ||
dbb410c3 AM |
1882 | while (--n_elt != 0) |
1883 | if ((s = (++idx)->shdr->bfd_section) != NULL | |
945906ff | 1884 | && elf_next_in_group (s) != NULL) |
dbb410c3 | 1885 | { |
945906ff | 1886 | elf_next_in_group (hdr->bfd_section) = s; |
dbb410c3 AM |
1887 | break; |
1888 | } | |
1889 | } | |
1890 | break; | |
1891 | ||
252b5132 RH |
1892 | default: |
1893 | /* Check for any processor-specific section types. */ | |
1894 | { | |
1895 | if (bed->elf_backend_section_from_shdr) | |
1896 | (*bed->elf_backend_section_from_shdr) (abfd, hdr, name); | |
1897 | } | |
1898 | break; | |
1899 | } | |
1900 | ||
1901 | return true; | |
1902 | } | |
1903 | ||
ec338859 AM |
1904 | /* Return the section for the local symbol specified by ABFD, R_SYMNDX. |
1905 | Return SEC for sections that have no elf section, and NULL on error. */ | |
1906 | ||
1907 | asection * | |
1908 | bfd_section_from_r_symndx (abfd, cache, sec, r_symndx) | |
1909 | bfd *abfd; | |
1910 | struct sym_sec_cache *cache; | |
1911 | asection *sec; | |
1912 | unsigned long r_symndx; | |
1913 | { | |
9ad5cbcf | 1914 | unsigned char esym_shndx[4]; |
ec338859 AM |
1915 | unsigned int isym_shndx; |
1916 | Elf_Internal_Shdr *symtab_hdr; | |
1917 | file_ptr pos; | |
1918 | bfd_size_type amt; | |
1919 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; | |
1920 | ||
1921 | if (cache->abfd == abfd && cache->indx[ent] == r_symndx) | |
1922 | return cache->sec[ent]; | |
1923 | ||
1924 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1925 | pos = symtab_hdr->sh_offset; | |
1926 | if (get_elf_backend_data (abfd)->s->sizeof_sym | |
1927 | == sizeof (Elf64_External_Sym)) | |
1928 | { | |
1929 | pos += r_symndx * sizeof (Elf64_External_Sym); | |
1930 | pos += offsetof (Elf64_External_Sym, st_shndx); | |
9ad5cbcf | 1931 | amt = sizeof (((Elf64_External_Sym *) 0)->st_shndx); |
ec338859 AM |
1932 | } |
1933 | else | |
1934 | { | |
1935 | pos += r_symndx * sizeof (Elf32_External_Sym); | |
1936 | pos += offsetof (Elf32_External_Sym, st_shndx); | |
9ad5cbcf | 1937 | amt = sizeof (((Elf32_External_Sym *) 0)->st_shndx); |
ec338859 | 1938 | } |
ec338859 AM |
1939 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
1940 | || bfd_bread ((PTR) esym_shndx, amt, abfd) != amt) | |
1941 | return NULL; | |
1942 | isym_shndx = H_GET_16 (abfd, esym_shndx); | |
1943 | ||
9ad5cbcf AM |
1944 | if (isym_shndx == SHN_XINDEX) |
1945 | { | |
1946 | Elf_Internal_Shdr *shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
1947 | if (shndx_hdr->sh_size != 0) | |
1948 | { | |
1949 | pos = shndx_hdr->sh_offset; | |
1950 | pos += r_symndx * sizeof (Elf_External_Sym_Shndx); | |
1951 | amt = sizeof (Elf_External_Sym_Shndx); | |
1952 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
1953 | || bfd_bread ((PTR) esym_shndx, amt, abfd) != amt) | |
1954 | return NULL; | |
1955 | isym_shndx = H_GET_32 (abfd, esym_shndx); | |
1956 | } | |
1957 | } | |
1958 | ||
ec338859 AM |
1959 | if (cache->abfd != abfd) |
1960 | { | |
1961 | memset (cache->indx, -1, sizeof (cache->indx)); | |
1962 | cache->abfd = abfd; | |
1963 | } | |
1964 | cache->indx[ent] = r_symndx; | |
1965 | cache->sec[ent] = sec; | |
9ad5cbcf | 1966 | if (isym_shndx < SHN_LORESERVE || isym_shndx > SHN_HIRESERVE) |
ec338859 AM |
1967 | { |
1968 | asection *s; | |
1969 | s = bfd_section_from_elf_index (abfd, isym_shndx); | |
1970 | if (s != NULL) | |
1971 | cache->sec[ent] = s; | |
1972 | } | |
1973 | return cache->sec[ent]; | |
1974 | } | |
1975 | ||
252b5132 RH |
1976 | /* Given an ELF section number, retrieve the corresponding BFD |
1977 | section. */ | |
1978 | ||
1979 | asection * | |
1980 | bfd_section_from_elf_index (abfd, index) | |
1981 | bfd *abfd; | |
1982 | unsigned int index; | |
1983 | { | |
9ad5cbcf | 1984 | if (index >= elf_numsections (abfd)) |
252b5132 RH |
1985 | return NULL; |
1986 | return elf_elfsections (abfd)[index]->bfd_section; | |
1987 | } | |
1988 | ||
1989 | boolean | |
1990 | _bfd_elf_new_section_hook (abfd, sec) | |
1991 | bfd *abfd; | |
1992 | asection *sec; | |
1993 | { | |
1994 | struct bfd_elf_section_data *sdata; | |
dc810e39 | 1995 | bfd_size_type amt = sizeof (*sdata); |
252b5132 | 1996 | |
dc810e39 | 1997 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, amt); |
252b5132 RH |
1998 | if (!sdata) |
1999 | return false; | |
2000 | sec->used_by_bfd = (PTR) sdata; | |
bf572ba0 MM |
2001 | |
2002 | /* Indicate whether or not this section should use RELA relocations. */ | |
c044fabd | 2003 | sdata->use_rela_p |
bf572ba0 MM |
2004 | = get_elf_backend_data (abfd)->default_use_rela_p; |
2005 | ||
252b5132 RH |
2006 | return true; |
2007 | } | |
2008 | ||
2009 | /* Create a new bfd section from an ELF program header. | |
2010 | ||
2011 | Since program segments have no names, we generate a synthetic name | |
2012 | of the form segment<NUM>, where NUM is generally the index in the | |
2013 | program header table. For segments that are split (see below) we | |
2014 | generate the names segment<NUM>a and segment<NUM>b. | |
2015 | ||
2016 | Note that some program segments may have a file size that is different than | |
2017 | (less than) the memory size. All this means is that at execution the | |
2018 | system must allocate the amount of memory specified by the memory size, | |
2019 | but only initialize it with the first "file size" bytes read from the | |
2020 | file. This would occur for example, with program segments consisting | |
2021 | of combined data+bss. | |
2022 | ||
2023 | To handle the above situation, this routine generates TWO bfd sections | |
2024 | for the single program segment. The first has the length specified by | |
2025 | the file size of the segment, and the second has the length specified | |
2026 | by the difference between the two sizes. In effect, the segment is split | |
2027 | into it's initialized and uninitialized parts. | |
2028 | ||
2029 | */ | |
2030 | ||
2031 | boolean | |
20cfcaae | 2032 | _bfd_elf_make_section_from_phdr (abfd, hdr, index, typename) |
252b5132 RH |
2033 | bfd *abfd; |
2034 | Elf_Internal_Phdr *hdr; | |
2035 | int index; | |
20cfcaae | 2036 | const char *typename; |
252b5132 RH |
2037 | { |
2038 | asection *newsect; | |
2039 | char *name; | |
2040 | char namebuf[64]; | |
2041 | int split; | |
2042 | ||
2043 | split = ((hdr->p_memsz > 0) | |
2044 | && (hdr->p_filesz > 0) | |
2045 | && (hdr->p_memsz > hdr->p_filesz)); | |
27ac83bf | 2046 | sprintf (namebuf, "%s%d%s", typename, index, split ? "a" : ""); |
dc810e39 | 2047 | name = bfd_alloc (abfd, (bfd_size_type) strlen (namebuf) + 1); |
252b5132 RH |
2048 | if (!name) |
2049 | return false; | |
2050 | strcpy (name, namebuf); | |
2051 | newsect = bfd_make_section (abfd, name); | |
2052 | if (newsect == NULL) | |
2053 | return false; | |
2054 | newsect->vma = hdr->p_vaddr; | |
2055 | newsect->lma = hdr->p_paddr; | |
2056 | newsect->_raw_size = hdr->p_filesz; | |
2057 | newsect->filepos = hdr->p_offset; | |
2058 | newsect->flags |= SEC_HAS_CONTENTS; | |
2059 | if (hdr->p_type == PT_LOAD) | |
2060 | { | |
2061 | newsect->flags |= SEC_ALLOC; | |
2062 | newsect->flags |= SEC_LOAD; | |
2063 | if (hdr->p_flags & PF_X) | |
2064 | { | |
2065 | /* FIXME: all we known is that it has execute PERMISSION, | |
c044fabd | 2066 | may be data. */ |
252b5132 RH |
2067 | newsect->flags |= SEC_CODE; |
2068 | } | |
2069 | } | |
2070 | if (!(hdr->p_flags & PF_W)) | |
2071 | { | |
2072 | newsect->flags |= SEC_READONLY; | |
2073 | } | |
2074 | ||
2075 | if (split) | |
2076 | { | |
27ac83bf | 2077 | sprintf (namebuf, "%s%db", typename, index); |
dc810e39 | 2078 | name = bfd_alloc (abfd, (bfd_size_type) strlen (namebuf) + 1); |
252b5132 RH |
2079 | if (!name) |
2080 | return false; | |
2081 | strcpy (name, namebuf); | |
2082 | newsect = bfd_make_section (abfd, name); | |
2083 | if (newsect == NULL) | |
2084 | return false; | |
2085 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; | |
2086 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
2087 | newsect->_raw_size = hdr->p_memsz - hdr->p_filesz; | |
2088 | if (hdr->p_type == PT_LOAD) | |
2089 | { | |
2090 | newsect->flags |= SEC_ALLOC; | |
2091 | if (hdr->p_flags & PF_X) | |
2092 | newsect->flags |= SEC_CODE; | |
2093 | } | |
2094 | if (!(hdr->p_flags & PF_W)) | |
2095 | newsect->flags |= SEC_READONLY; | |
2096 | } | |
2097 | ||
2098 | return true; | |
2099 | } | |
2100 | ||
20cfcaae NC |
2101 | boolean |
2102 | bfd_section_from_phdr (abfd, hdr, index) | |
2103 | bfd *abfd; | |
2104 | Elf_Internal_Phdr *hdr; | |
2105 | int index; | |
2106 | { | |
2107 | struct elf_backend_data *bed; | |
2108 | ||
2109 | switch (hdr->p_type) | |
2110 | { | |
2111 | case PT_NULL: | |
2112 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "null"); | |
2113 | ||
2114 | case PT_LOAD: | |
2115 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "load"); | |
2116 | ||
2117 | case PT_DYNAMIC: | |
2118 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "dynamic"); | |
2119 | ||
2120 | case PT_INTERP: | |
2121 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "interp"); | |
2122 | ||
2123 | case PT_NOTE: | |
2124 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, index, "note")) | |
2125 | return false; | |
dc810e39 | 2126 | if (! elfcore_read_notes (abfd, (file_ptr) hdr->p_offset, hdr->p_filesz)) |
20cfcaae NC |
2127 | return false; |
2128 | return true; | |
2129 | ||
2130 | case PT_SHLIB: | |
2131 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "shlib"); | |
2132 | ||
2133 | case PT_PHDR: | |
2134 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "phdr"); | |
2135 | ||
2136 | default: | |
2137 | /* Check for any processor-specific program segment types. | |
c044fabd | 2138 | If no handler for them, default to making "segment" sections. */ |
20cfcaae NC |
2139 | bed = get_elf_backend_data (abfd); |
2140 | if (bed->elf_backend_section_from_phdr) | |
2141 | return (*bed->elf_backend_section_from_phdr) (abfd, hdr, index); | |
2142 | else | |
2143 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "segment"); | |
2144 | } | |
2145 | } | |
2146 | ||
23bc299b MM |
2147 | /* Initialize REL_HDR, the section-header for new section, containing |
2148 | relocations against ASECT. If USE_RELA_P is true, we use RELA | |
2149 | relocations; otherwise, we use REL relocations. */ | |
2150 | ||
2151 | boolean | |
2152 | _bfd_elf_init_reloc_shdr (abfd, rel_hdr, asect, use_rela_p) | |
2153 | bfd *abfd; | |
2154 | Elf_Internal_Shdr *rel_hdr; | |
2155 | asection *asect; | |
2156 | boolean use_rela_p; | |
2157 | { | |
2158 | char *name; | |
dc810e39 AM |
2159 | struct elf_backend_data *bed = get_elf_backend_data (abfd); |
2160 | bfd_size_type amt = sizeof ".rela" + strlen (asect->name); | |
23bc299b | 2161 | |
dc810e39 | 2162 | name = bfd_alloc (abfd, amt); |
23bc299b MM |
2163 | if (name == NULL) |
2164 | return false; | |
2165 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); | |
2166 | rel_hdr->sh_name = | |
2b0f7ef9 JJ |
2167 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, |
2168 | false); | |
23bc299b MM |
2169 | if (rel_hdr->sh_name == (unsigned int) -1) |
2170 | return false; | |
2171 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; | |
2172 | rel_hdr->sh_entsize = (use_rela_p | |
2173 | ? bed->s->sizeof_rela | |
2174 | : bed->s->sizeof_rel); | |
2175 | rel_hdr->sh_addralign = bed->s->file_align; | |
2176 | rel_hdr->sh_flags = 0; | |
2177 | rel_hdr->sh_addr = 0; | |
2178 | rel_hdr->sh_size = 0; | |
2179 | rel_hdr->sh_offset = 0; | |
2180 | ||
2181 | return true; | |
2182 | } | |
2183 | ||
252b5132 RH |
2184 | /* Set up an ELF internal section header for a section. */ |
2185 | ||
252b5132 RH |
2186 | static void |
2187 | elf_fake_sections (abfd, asect, failedptrarg) | |
2188 | bfd *abfd; | |
2189 | asection *asect; | |
2190 | PTR failedptrarg; | |
2191 | { | |
2192 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2193 | boolean *failedptr = (boolean *) failedptrarg; | |
2194 | Elf_Internal_Shdr *this_hdr; | |
2195 | ||
2196 | if (*failedptr) | |
2197 | { | |
2198 | /* We already failed; just get out of the bfd_map_over_sections | |
2199 | loop. */ | |
2200 | return; | |
2201 | } | |
2202 | ||
2203 | this_hdr = &elf_section_data (asect)->this_hdr; | |
2204 | ||
2b0f7ef9 JJ |
2205 | this_hdr->sh_name = (unsigned long) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
2206 | asect->name, false); | |
252b5132 RH |
2207 | if (this_hdr->sh_name == (unsigned long) -1) |
2208 | { | |
2209 | *failedptr = true; | |
2210 | return; | |
2211 | } | |
2212 | ||
2213 | this_hdr->sh_flags = 0; | |
2214 | ||
2215 | if ((asect->flags & SEC_ALLOC) != 0 | |
2216 | || asect->user_set_vma) | |
2217 | this_hdr->sh_addr = asect->vma; | |
2218 | else | |
2219 | this_hdr->sh_addr = 0; | |
2220 | ||
2221 | this_hdr->sh_offset = 0; | |
2222 | this_hdr->sh_size = asect->_raw_size; | |
2223 | this_hdr->sh_link = 0; | |
2224 | this_hdr->sh_addralign = 1 << asect->alignment_power; | |
2225 | /* The sh_entsize and sh_info fields may have been set already by | |
2226 | copy_private_section_data. */ | |
2227 | ||
2228 | this_hdr->bfd_section = asect; | |
2229 | this_hdr->contents = NULL; | |
2230 | ||
2231 | /* FIXME: This should not be based on section names. */ | |
2232 | if (strcmp (asect->name, ".dynstr") == 0) | |
2233 | this_hdr->sh_type = SHT_STRTAB; | |
2234 | else if (strcmp (asect->name, ".hash") == 0) | |
2235 | { | |
2236 | this_hdr->sh_type = SHT_HASH; | |
c7ac6ff8 | 2237 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
252b5132 RH |
2238 | } |
2239 | else if (strcmp (asect->name, ".dynsym") == 0) | |
2240 | { | |
2241 | this_hdr->sh_type = SHT_DYNSYM; | |
2242 | this_hdr->sh_entsize = bed->s->sizeof_sym; | |
2243 | } | |
2244 | else if (strcmp (asect->name, ".dynamic") == 0) | |
2245 | { | |
2246 | this_hdr->sh_type = SHT_DYNAMIC; | |
2247 | this_hdr->sh_entsize = bed->s->sizeof_dyn; | |
2248 | } | |
a9d024b8 | 2249 | else if (strncmp (asect->name, ".rela", 5) == 0 |
bf572ba0 | 2250 | && get_elf_backend_data (abfd)->may_use_rela_p) |
252b5132 RH |
2251 | { |
2252 | this_hdr->sh_type = SHT_RELA; | |
2253 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
2254 | } | |
a9d024b8 | 2255 | else if (strncmp (asect->name, ".rel", 4) == 0 |
bf572ba0 | 2256 | && get_elf_backend_data (abfd)->may_use_rel_p) |
252b5132 RH |
2257 | { |
2258 | this_hdr->sh_type = SHT_REL; | |
2259 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
2260 | } | |
25e27870 L |
2261 | else if (strcmp (asect->name, ".init_array") == 0) |
2262 | this_hdr->sh_type = SHT_INIT_ARRAY; | |
2263 | else if (strcmp (asect->name, ".fini_array") == 0) | |
2264 | this_hdr->sh_type = SHT_FINI_ARRAY; | |
2265 | else if (strcmp (asect->name, ".preinit_array") == 0) | |
2266 | this_hdr->sh_type = SHT_PREINIT_ARRAY; | |
252b5132 RH |
2267 | else if (strncmp (asect->name, ".note", 5) == 0) |
2268 | this_hdr->sh_type = SHT_NOTE; | |
2269 | else if (strncmp (asect->name, ".stab", 5) == 0 | |
2270 | && strcmp (asect->name + strlen (asect->name) - 3, "str") == 0) | |
2271 | this_hdr->sh_type = SHT_STRTAB; | |
2272 | else if (strcmp (asect->name, ".gnu.version") == 0) | |
2273 | { | |
2274 | this_hdr->sh_type = SHT_GNU_versym; | |
2275 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); | |
2276 | } | |
2277 | else if (strcmp (asect->name, ".gnu.version_d") == 0) | |
2278 | { | |
2279 | this_hdr->sh_type = SHT_GNU_verdef; | |
2280 | this_hdr->sh_entsize = 0; | |
2281 | /* objcopy or strip will copy over sh_info, but may not set | |
2282 | cverdefs. The linker will set cverdefs, but sh_info will be | |
2283 | zero. */ | |
2284 | if (this_hdr->sh_info == 0) | |
2285 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
2286 | else | |
2287 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
2288 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2289 | } | |
2290 | else if (strcmp (asect->name, ".gnu.version_r") == 0) | |
2291 | { | |
2292 | this_hdr->sh_type = SHT_GNU_verneed; | |
2293 | this_hdr->sh_entsize = 0; | |
2294 | /* objcopy or strip will copy over sh_info, but may not set | |
2295 | cverrefs. The linker will set cverrefs, but sh_info will be | |
2296 | zero. */ | |
2297 | if (this_hdr->sh_info == 0) | |
2298 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
2299 | else | |
2300 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
2301 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2302 | } | |
dbb410c3 AM |
2303 | else if ((asect->flags & SEC_GROUP) != 0) |
2304 | { | |
2305 | this_hdr->sh_type = SHT_GROUP; | |
2306 | this_hdr->sh_entsize = 4; | |
2307 | } | |
252b5132 | 2308 | else if ((asect->flags & SEC_ALLOC) != 0 |
edd29cf9 AM |
2309 | && (((asect->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
2310 | || (asect->flags & SEC_NEVER_LOAD) != 0)) | |
252b5132 RH |
2311 | this_hdr->sh_type = SHT_NOBITS; |
2312 | else | |
6c99a5c3 | 2313 | this_hdr->sh_type = SHT_PROGBITS; |
252b5132 RH |
2314 | |
2315 | if ((asect->flags & SEC_ALLOC) != 0) | |
2316 | this_hdr->sh_flags |= SHF_ALLOC; | |
2317 | if ((asect->flags & SEC_READONLY) == 0) | |
2318 | this_hdr->sh_flags |= SHF_WRITE; | |
2319 | if ((asect->flags & SEC_CODE) != 0) | |
2320 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
2321 | if ((asect->flags & SEC_MERGE) != 0) |
2322 | { | |
2323 | this_hdr->sh_flags |= SHF_MERGE; | |
2324 | this_hdr->sh_entsize = asect->entsize; | |
2325 | if ((asect->flags & SEC_STRINGS) != 0) | |
2326 | this_hdr->sh_flags |= SHF_STRINGS; | |
2327 | } | |
945906ff | 2328 | if (elf_group_name (asect) != NULL) |
dbb410c3 | 2329 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 JJ |
2330 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
2331 | this_hdr->sh_flags |= SHF_TLS; | |
252b5132 RH |
2332 | |
2333 | /* Check for processor-specific section types. */ | |
e1fddb6b AO |
2334 | if (bed->elf_backend_fake_sections |
2335 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
2336 | *failedptr = true; | |
252b5132 RH |
2337 | |
2338 | /* If the section has relocs, set up a section header for the | |
23bc299b MM |
2339 | SHT_REL[A] section. If two relocation sections are required for |
2340 | this section, it is up to the processor-specific back-end to | |
c044fabd | 2341 | create the other. */ |
23bc299b | 2342 | if ((asect->flags & SEC_RELOC) != 0 |
c044fabd | 2343 | && !_bfd_elf_init_reloc_shdr (abfd, |
23bc299b | 2344 | &elf_section_data (asect)->rel_hdr, |
c044fabd | 2345 | asect, |
23bc299b MM |
2346 | elf_section_data (asect)->use_rela_p)) |
2347 | *failedptr = true; | |
252b5132 RH |
2348 | } |
2349 | ||
dbb410c3 AM |
2350 | /* Fill in the contents of a SHT_GROUP section. */ |
2351 | ||
2352 | static void | |
2353 | set_group_contents (abfd, sec, failedptrarg) | |
2354 | bfd *abfd; | |
2355 | asection *sec; | |
2356 | PTR failedptrarg ATTRIBUTE_UNUSED; | |
2357 | { | |
2358 | boolean *failedptr = (boolean *) failedptrarg; | |
2359 | unsigned long symindx; | |
2360 | asection *elt; | |
2361 | unsigned char *loc; | |
2362 | struct bfd_link_order *l; | |
2363 | ||
2364 | if (elf_section_data (sec)->this_hdr.sh_type != SHT_GROUP | |
2365 | || *failedptr) | |
2366 | return; | |
2367 | ||
2368 | /* If called from the assembler, swap_out_syms will have set up | |
945906ff AM |
2369 | elf_section_syms; If called for "ld -r", the symbols won't yet |
2370 | be mapped, so emulate elf_bfd_final_link. */ | |
2371 | if (elf_section_syms (abfd) != NULL) | |
2372 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
2373 | else | |
dbb410c3 AM |
2374 | symindx = elf_section_data (sec)->this_idx; |
2375 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
2376 | ||
2377 | /* Nor will the contents be allocated for "ld -r". */ | |
2378 | if (sec->contents == NULL) | |
2379 | { | |
2380 | sec->contents = bfd_alloc (abfd, sec->_raw_size); | |
2381 | if (sec->contents == NULL) | |
2382 | { | |
2383 | *failedptr = true; | |
2384 | return; | |
2385 | } | |
2386 | } | |
2387 | ||
2388 | loc = sec->contents + sec->_raw_size; | |
2389 | ||
2390 | /* Get the pointer to the first section in the group that we | |
2391 | squirreled away here. */ | |
945906ff | 2392 | elt = elf_next_in_group (sec); |
dbb410c3 AM |
2393 | |
2394 | /* First element is a flag word. Rest of section is elf section | |
2395 | indices for all the sections of the group. Write them backwards | |
2396 | just to keep the group in the same order as given in .section | |
2397 | directives, not that it matters. */ | |
2398 | while (elt != NULL) | |
2399 | { | |
2400 | loc -= 4; | |
2401 | H_PUT_32 (abfd, elf_section_data (elt)->this_idx, loc); | |
945906ff | 2402 | elt = elf_next_in_group (elt); |
dbb410c3 AM |
2403 | } |
2404 | ||
2405 | /* If this is a relocatable link, then the above did nothing because | |
2406 | SEC is the output section. Look through the input sections | |
2407 | instead. */ | |
2408 | for (l = sec->link_order_head; l != NULL; l = l->next) | |
2409 | if (l->type == bfd_indirect_link_order | |
945906ff | 2410 | && (elt = elf_next_in_group (l->u.indirect.section)) != NULL) |
dbb410c3 AM |
2411 | do |
2412 | { | |
2413 | loc -= 4; | |
2414 | H_PUT_32 (abfd, | |
2415 | elf_section_data (elt->output_section)->this_idx, loc); | |
945906ff | 2416 | elt = elf_next_in_group (elt); |
dbb410c3 AM |
2417 | /* During a relocatable link, the lists are circular. */ |
2418 | } | |
945906ff | 2419 | while (elt != elf_next_in_group (l->u.indirect.section)); |
dbb410c3 AM |
2420 | |
2421 | loc -= 4; | |
b885599b | 2422 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
2423 | |
2424 | BFD_ASSERT (loc == sec->contents); | |
2425 | } | |
2426 | ||
252b5132 RH |
2427 | /* Assign all ELF section numbers. The dummy first section is handled here |
2428 | too. The link/info pointers for the standard section types are filled | |
2429 | in here too, while we're at it. */ | |
2430 | ||
2431 | static boolean | |
2432 | assign_section_numbers (abfd) | |
2433 | bfd *abfd; | |
2434 | { | |
2435 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
2436 | asection *sec; | |
2b0f7ef9 | 2437 | unsigned int section_number, secn; |
252b5132 | 2438 | Elf_Internal_Shdr **i_shdrp; |
dc810e39 | 2439 | bfd_size_type amt; |
252b5132 RH |
2440 | |
2441 | section_number = 1; | |
2442 | ||
2b0f7ef9 JJ |
2443 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
2444 | ||
252b5132 RH |
2445 | for (sec = abfd->sections; sec; sec = sec->next) |
2446 | { | |
2447 | struct bfd_elf_section_data *d = elf_section_data (sec); | |
2448 | ||
9ad5cbcf AM |
2449 | if (section_number == SHN_LORESERVE) |
2450 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2451 | d->this_idx = section_number++; |
2b0f7ef9 | 2452 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); |
252b5132 RH |
2453 | if ((sec->flags & SEC_RELOC) == 0) |
2454 | d->rel_idx = 0; | |
2455 | else | |
2b0f7ef9 | 2456 | { |
9ad5cbcf AM |
2457 | if (section_number == SHN_LORESERVE) |
2458 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2b0f7ef9 JJ |
2459 | d->rel_idx = section_number++; |
2460 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr.sh_name); | |
2461 | } | |
23bc299b MM |
2462 | |
2463 | if (d->rel_hdr2) | |
2b0f7ef9 | 2464 | { |
9ad5cbcf AM |
2465 | if (section_number == SHN_LORESERVE) |
2466 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2b0f7ef9 JJ |
2467 | d->rel_idx2 = section_number++; |
2468 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr2->sh_name); | |
2469 | } | |
23bc299b MM |
2470 | else |
2471 | d->rel_idx2 = 0; | |
252b5132 RH |
2472 | } |
2473 | ||
9ad5cbcf AM |
2474 | if (section_number == SHN_LORESERVE) |
2475 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2476 | t->shstrtab_section = section_number++; |
2b0f7ef9 | 2477 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); |
252b5132 | 2478 | elf_elfheader (abfd)->e_shstrndx = t->shstrtab_section; |
252b5132 RH |
2479 | |
2480 | if (bfd_get_symcount (abfd) > 0) | |
2481 | { | |
9ad5cbcf AM |
2482 | if (section_number == SHN_LORESERVE) |
2483 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2484 | t->symtab_section = section_number++; |
2b0f7ef9 | 2485 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
9ad5cbcf AM |
2486 | if (section_number > SHN_LORESERVE - 2) |
2487 | { | |
2488 | if (section_number == SHN_LORESERVE) | |
2489 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
2490 | t->symtab_shndx_section = section_number++; | |
2491 | t->symtab_shndx_hdr.sh_name | |
2492 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
2493 | ".symtab_shndx", false); | |
2494 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) | |
2495 | return false; | |
2496 | } | |
2497 | if (section_number == SHN_LORESERVE) | |
2498 | section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 | 2499 | t->strtab_section = section_number++; |
2b0f7ef9 | 2500 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
2501 | } |
2502 | ||
2b0f7ef9 JJ |
2503 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); |
2504 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
9ad5cbcf AM |
2505 | |
2506 | elf_numsections (abfd) = section_number; | |
252b5132 | 2507 | elf_elfheader (abfd)->e_shnum = section_number; |
9ad5cbcf AM |
2508 | if (section_number > SHN_LORESERVE) |
2509 | elf_elfheader (abfd)->e_shnum -= SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 RH |
2510 | |
2511 | /* Set up the list of section header pointers, in agreement with the | |
2512 | indices. */ | |
dc810e39 AM |
2513 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
2514 | i_shdrp = (Elf_Internal_Shdr **) bfd_alloc (abfd, amt); | |
252b5132 RH |
2515 | if (i_shdrp == NULL) |
2516 | return false; | |
2517 | ||
dc810e39 AM |
2518 | amt = sizeof (Elf_Internal_Shdr); |
2519 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
252b5132 RH |
2520 | if (i_shdrp[0] == NULL) |
2521 | { | |
2522 | bfd_release (abfd, i_shdrp); | |
2523 | return false; | |
2524 | } | |
2525 | memset (i_shdrp[0], 0, sizeof (Elf_Internal_Shdr)); | |
2526 | ||
2527 | elf_elfsections (abfd) = i_shdrp; | |
2528 | ||
2529 | i_shdrp[t->shstrtab_section] = &t->shstrtab_hdr; | |
2530 | if (bfd_get_symcount (abfd) > 0) | |
2531 | { | |
2532 | i_shdrp[t->symtab_section] = &t->symtab_hdr; | |
9ad5cbcf AM |
2533 | if (elf_numsections (abfd) > SHN_LORESERVE) |
2534 | { | |
2535 | i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr; | |
2536 | t->symtab_shndx_hdr.sh_link = t->symtab_section; | |
2537 | } | |
252b5132 RH |
2538 | i_shdrp[t->strtab_section] = &t->strtab_hdr; |
2539 | t->symtab_hdr.sh_link = t->strtab_section; | |
2540 | } | |
2541 | for (sec = abfd->sections; sec; sec = sec->next) | |
2542 | { | |
2543 | struct bfd_elf_section_data *d = elf_section_data (sec); | |
2544 | asection *s; | |
2545 | const char *name; | |
2546 | ||
2547 | i_shdrp[d->this_idx] = &d->this_hdr; | |
2548 | if (d->rel_idx != 0) | |
2549 | i_shdrp[d->rel_idx] = &d->rel_hdr; | |
23bc299b MM |
2550 | if (d->rel_idx2 != 0) |
2551 | i_shdrp[d->rel_idx2] = d->rel_hdr2; | |
252b5132 RH |
2552 | |
2553 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
2554 | ||
2555 | /* sh_link of a reloc section is the section index of the symbol | |
2556 | table. sh_info is the section index of the section to which | |
2557 | the relocation entries apply. */ | |
2558 | if (d->rel_idx != 0) | |
2559 | { | |
2560 | d->rel_hdr.sh_link = t->symtab_section; | |
2561 | d->rel_hdr.sh_info = d->this_idx; | |
2562 | } | |
23bc299b MM |
2563 | if (d->rel_idx2 != 0) |
2564 | { | |
2565 | d->rel_hdr2->sh_link = t->symtab_section; | |
2566 | d->rel_hdr2->sh_info = d->this_idx; | |
2567 | } | |
252b5132 RH |
2568 | |
2569 | switch (d->this_hdr.sh_type) | |
2570 | { | |
2571 | case SHT_REL: | |
2572 | case SHT_RELA: | |
2573 | /* A reloc section which we are treating as a normal BFD | |
2574 | section. sh_link is the section index of the symbol | |
2575 | table. sh_info is the section index of the section to | |
2576 | which the relocation entries apply. We assume that an | |
2577 | allocated reloc section uses the dynamic symbol table. | |
2578 | FIXME: How can we be sure? */ | |
2579 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
2580 | if (s != NULL) | |
2581 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2582 | ||
2583 | /* We look up the section the relocs apply to by name. */ | |
2584 | name = sec->name; | |
2585 | if (d->this_hdr.sh_type == SHT_REL) | |
2586 | name += 4; | |
2587 | else | |
2588 | name += 5; | |
2589 | s = bfd_get_section_by_name (abfd, name); | |
2590 | if (s != NULL) | |
2591 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
2592 | break; | |
2593 | ||
2594 | case SHT_STRTAB: | |
2595 | /* We assume that a section named .stab*str is a stabs | |
2596 | string section. We look for a section with the same name | |
2597 | but without the trailing ``str'', and set its sh_link | |
2598 | field to point to this section. */ | |
2599 | if (strncmp (sec->name, ".stab", sizeof ".stab" - 1) == 0 | |
2600 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) | |
2601 | { | |
2602 | size_t len; | |
2603 | char *alc; | |
2604 | ||
2605 | len = strlen (sec->name); | |
dc810e39 | 2606 | alc = (char *) bfd_malloc ((bfd_size_type) len - 2); |
252b5132 RH |
2607 | if (alc == NULL) |
2608 | return false; | |
2609 | strncpy (alc, sec->name, len - 3); | |
2610 | alc[len - 3] = '\0'; | |
2611 | s = bfd_get_section_by_name (abfd, alc); | |
2612 | free (alc); | |
2613 | if (s != NULL) | |
2614 | { | |
2615 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
2616 | ||
2617 | /* This is a .stab section. */ | |
2618 | elf_section_data (s)->this_hdr.sh_entsize = | |
125c4a69 | 2619 | 4 + 2 * bfd_get_arch_size (abfd) / 8; |
252b5132 RH |
2620 | } |
2621 | } | |
2622 | break; | |
2623 | ||
2624 | case SHT_DYNAMIC: | |
2625 | case SHT_DYNSYM: | |
2626 | case SHT_GNU_verneed: | |
2627 | case SHT_GNU_verdef: | |
2628 | /* sh_link is the section header index of the string table | |
2629 | used for the dynamic entries, or the symbol table, or the | |
2630 | version strings. */ | |
2631 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
2632 | if (s != NULL) | |
2633 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2634 | break; | |
2635 | ||
2636 | case SHT_HASH: | |
2637 | case SHT_GNU_versym: | |
2638 | /* sh_link is the section header index of the symbol table | |
2639 | this hash table or version table is for. */ | |
2640 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
2641 | if (s != NULL) | |
2642 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
2643 | break; | |
dbb410c3 AM |
2644 | |
2645 | case SHT_GROUP: | |
2646 | d->this_hdr.sh_link = t->symtab_section; | |
252b5132 RH |
2647 | } |
2648 | } | |
2649 | ||
2b0f7ef9 | 2650 | for (secn = 1; secn < section_number; ++secn) |
9ad5cbcf AM |
2651 | if (i_shdrp[secn] == NULL) |
2652 | i_shdrp[secn] = i_shdrp[0]; | |
2653 | else | |
2654 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
2655 | i_shdrp[secn]->sh_name); | |
252b5132 RH |
2656 | return true; |
2657 | } | |
2658 | ||
2659 | /* Map symbol from it's internal number to the external number, moving | |
2660 | all local symbols to be at the head of the list. */ | |
2661 | ||
2662 | static INLINE int | |
2663 | sym_is_global (abfd, sym) | |
2664 | bfd *abfd; | |
2665 | asymbol *sym; | |
2666 | { | |
2667 | /* If the backend has a special mapping, use it. */ | |
2668 | if (get_elf_backend_data (abfd)->elf_backend_sym_is_global) | |
2669 | return ((*get_elf_backend_data (abfd)->elf_backend_sym_is_global) | |
2670 | (abfd, sym)); | |
2671 | ||
2672 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
2673 | || bfd_is_und_section (bfd_get_section (sym)) | |
2674 | || bfd_is_com_section (bfd_get_section (sym))); | |
2675 | } | |
2676 | ||
2677 | static boolean | |
2678 | elf_map_symbols (abfd) | |
2679 | bfd *abfd; | |
2680 | { | |
dc810e39 | 2681 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
2682 | asymbol **syms = bfd_get_outsymbols (abfd); |
2683 | asymbol **sect_syms; | |
dc810e39 AM |
2684 | unsigned int num_locals = 0; |
2685 | unsigned int num_globals = 0; | |
2686 | unsigned int num_locals2 = 0; | |
2687 | unsigned int num_globals2 = 0; | |
252b5132 | 2688 | int max_index = 0; |
dc810e39 | 2689 | unsigned int idx; |
252b5132 RH |
2690 | asection *asect; |
2691 | asymbol **new_syms; | |
dc810e39 | 2692 | bfd_size_type amt; |
252b5132 RH |
2693 | |
2694 | #ifdef DEBUG | |
2695 | fprintf (stderr, "elf_map_symbols\n"); | |
2696 | fflush (stderr); | |
2697 | #endif | |
2698 | ||
252b5132 RH |
2699 | for (asect = abfd->sections; asect; asect = asect->next) |
2700 | { | |
2701 | if (max_index < asect->index) | |
2702 | max_index = asect->index; | |
2703 | } | |
2704 | ||
2705 | max_index++; | |
dc810e39 AM |
2706 | amt = max_index * sizeof (asymbol *); |
2707 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 RH |
2708 | if (sect_syms == NULL) |
2709 | return false; | |
2710 | elf_section_syms (abfd) = sect_syms; | |
4e89ac30 | 2711 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 2712 | |
079e9a2f AM |
2713 | /* Init sect_syms entries for any section symbols we have already |
2714 | decided to output. */ | |
252b5132 RH |
2715 | for (idx = 0; idx < symcount; idx++) |
2716 | { | |
dc810e39 | 2717 | asymbol *sym = syms[idx]; |
c044fabd | 2718 | |
252b5132 RH |
2719 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
2720 | && sym->value == 0) | |
2721 | { | |
2722 | asection *sec; | |
2723 | ||
2724 | sec = sym->section; | |
2725 | ||
2726 | if (sec->owner != NULL) | |
2727 | { | |
2728 | if (sec->owner != abfd) | |
2729 | { | |
2730 | if (sec->output_offset != 0) | |
2731 | continue; | |
c044fabd | 2732 | |
252b5132 RH |
2733 | sec = sec->output_section; |
2734 | ||
079e9a2f AM |
2735 | /* Empty sections in the input files may have had a |
2736 | section symbol created for them. (See the comment | |
2737 | near the end of _bfd_generic_link_output_symbols in | |
2738 | linker.c). If the linker script discards such | |
2739 | sections then we will reach this point. Since we know | |
2740 | that we cannot avoid this case, we detect it and skip | |
2741 | the abort and the assignment to the sect_syms array. | |
2742 | To reproduce this particular case try running the | |
2743 | linker testsuite test ld-scripts/weak.exp for an ELF | |
2744 | port that uses the generic linker. */ | |
252b5132 RH |
2745 | if (sec->owner == NULL) |
2746 | continue; | |
2747 | ||
2748 | BFD_ASSERT (sec->owner == abfd); | |
2749 | } | |
2750 | sect_syms[sec->index] = syms[idx]; | |
2751 | } | |
2752 | } | |
2753 | } | |
2754 | ||
252b5132 RH |
2755 | /* Classify all of the symbols. */ |
2756 | for (idx = 0; idx < symcount; idx++) | |
2757 | { | |
2758 | if (!sym_is_global (abfd, syms[idx])) | |
2759 | num_locals++; | |
2760 | else | |
2761 | num_globals++; | |
2762 | } | |
079e9a2f AM |
2763 | |
2764 | /* We will be adding a section symbol for each BFD section. Most normal | |
2765 | sections will already have a section symbol in outsymbols, but | |
2766 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
2767 | at least in that case. */ | |
252b5132 RH |
2768 | for (asect = abfd->sections; asect; asect = asect->next) |
2769 | { | |
079e9a2f | 2770 | if (sect_syms[asect->index] == NULL) |
252b5132 | 2771 | { |
079e9a2f | 2772 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
2773 | num_locals++; |
2774 | else | |
2775 | num_globals++; | |
252b5132 RH |
2776 | } |
2777 | } | |
2778 | ||
2779 | /* Now sort the symbols so the local symbols are first. */ | |
dc810e39 AM |
2780 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
2781 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
2782 | ||
252b5132 RH |
2783 | if (new_syms == NULL) |
2784 | return false; | |
2785 | ||
2786 | for (idx = 0; idx < symcount; idx++) | |
2787 | { | |
2788 | asymbol *sym = syms[idx]; | |
dc810e39 | 2789 | unsigned int i; |
252b5132 RH |
2790 | |
2791 | if (!sym_is_global (abfd, sym)) | |
2792 | i = num_locals2++; | |
2793 | else | |
2794 | i = num_locals + num_globals2++; | |
2795 | new_syms[i] = sym; | |
2796 | sym->udata.i = i + 1; | |
2797 | } | |
2798 | for (asect = abfd->sections; asect; asect = asect->next) | |
2799 | { | |
079e9a2f | 2800 | if (sect_syms[asect->index] == NULL) |
252b5132 | 2801 | { |
079e9a2f | 2802 | asymbol *sym = asect->symbol; |
dc810e39 | 2803 | unsigned int i; |
252b5132 | 2804 | |
079e9a2f | 2805 | sect_syms[asect->index] = sym; |
252b5132 RH |
2806 | if (!sym_is_global (abfd, sym)) |
2807 | i = num_locals2++; | |
2808 | else | |
2809 | i = num_locals + num_globals2++; | |
2810 | new_syms[i] = sym; | |
2811 | sym->udata.i = i + 1; | |
2812 | } | |
2813 | } | |
2814 | ||
2815 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
2816 | ||
2817 | elf_num_locals (abfd) = num_locals; | |
2818 | elf_num_globals (abfd) = num_globals; | |
2819 | return true; | |
2820 | } | |
2821 | ||
2822 | /* Align to the maximum file alignment that could be required for any | |
2823 | ELF data structure. */ | |
2824 | ||
2825 | static INLINE file_ptr align_file_position PARAMS ((file_ptr, int)); | |
2826 | static INLINE file_ptr | |
2827 | align_file_position (off, align) | |
2828 | file_ptr off; | |
2829 | int align; | |
2830 | { | |
2831 | return (off + align - 1) & ~(align - 1); | |
2832 | } | |
2833 | ||
2834 | /* Assign a file position to a section, optionally aligning to the | |
2835 | required section alignment. */ | |
2836 | ||
2837 | INLINE file_ptr | |
2838 | _bfd_elf_assign_file_position_for_section (i_shdrp, offset, align) | |
2839 | Elf_Internal_Shdr *i_shdrp; | |
2840 | file_ptr offset; | |
2841 | boolean align; | |
2842 | { | |
2843 | if (align) | |
2844 | { | |
2845 | unsigned int al; | |
2846 | ||
2847 | al = i_shdrp->sh_addralign; | |
2848 | if (al > 1) | |
2849 | offset = BFD_ALIGN (offset, al); | |
2850 | } | |
2851 | i_shdrp->sh_offset = offset; | |
2852 | if (i_shdrp->bfd_section != NULL) | |
2853 | i_shdrp->bfd_section->filepos = offset; | |
2854 | if (i_shdrp->sh_type != SHT_NOBITS) | |
2855 | offset += i_shdrp->sh_size; | |
2856 | return offset; | |
2857 | } | |
2858 | ||
2859 | /* Compute the file positions we are going to put the sections at, and | |
2860 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
2861 | is not NULL, this is being called by the ELF backend linker. */ | |
2862 | ||
2863 | boolean | |
2864 | _bfd_elf_compute_section_file_positions (abfd, link_info) | |
2865 | bfd *abfd; | |
2866 | struct bfd_link_info *link_info; | |
2867 | { | |
2868 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2869 | boolean failed; | |
2870 | struct bfd_strtab_hash *strtab; | |
2871 | Elf_Internal_Shdr *shstrtab_hdr; | |
2872 | ||
2873 | if (abfd->output_has_begun) | |
2874 | return true; | |
2875 | ||
2876 | /* Do any elf backend specific processing first. */ | |
2877 | if (bed->elf_backend_begin_write_processing) | |
2878 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
2879 | ||
2880 | if (! prep_headers (abfd)) | |
2881 | return false; | |
2882 | ||
e6c51ed4 NC |
2883 | /* Post process the headers if necessary. */ |
2884 | if (bed->elf_backend_post_process_headers) | |
2885 | (*bed->elf_backend_post_process_headers) (abfd, link_info); | |
2886 | ||
252b5132 RH |
2887 | failed = false; |
2888 | bfd_map_over_sections (abfd, elf_fake_sections, &failed); | |
2889 | if (failed) | |
2890 | return false; | |
2891 | ||
2892 | if (!assign_section_numbers (abfd)) | |
2893 | return false; | |
2894 | ||
2895 | /* The backend linker builds symbol table information itself. */ | |
2896 | if (link_info == NULL && bfd_get_symcount (abfd) > 0) | |
2897 | { | |
2898 | /* Non-zero if doing a relocatable link. */ | |
2899 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
2900 | ||
2901 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
2902 | return false; | |
2903 | } | |
2904 | ||
dbb410c3 AM |
2905 | if (link_info == NULL || link_info->relocateable) |
2906 | { | |
2907 | bfd_map_over_sections (abfd, set_group_contents, &failed); | |
2908 | if (failed) | |
2909 | return false; | |
2910 | } | |
2911 | ||
252b5132 RH |
2912 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
2913 | /* sh_name was set in prep_headers. */ | |
2914 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
2915 | shstrtab_hdr->sh_flags = 0; | |
2916 | shstrtab_hdr->sh_addr = 0; | |
2b0f7ef9 | 2917 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); |
252b5132 RH |
2918 | shstrtab_hdr->sh_entsize = 0; |
2919 | shstrtab_hdr->sh_link = 0; | |
2920 | shstrtab_hdr->sh_info = 0; | |
2921 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |
2922 | shstrtab_hdr->sh_addralign = 1; | |
2923 | ||
2924 | if (!assign_file_positions_except_relocs (abfd)) | |
2925 | return false; | |
2926 | ||
2927 | if (link_info == NULL && bfd_get_symcount (abfd) > 0) | |
2928 | { | |
2929 | file_ptr off; | |
2930 | Elf_Internal_Shdr *hdr; | |
2931 | ||
2932 | off = elf_tdata (abfd)->next_file_pos; | |
2933 | ||
2934 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
2935 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); | |
2936 | ||
9ad5cbcf AM |
2937 | hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
2938 | if (hdr->sh_size != 0) | |
2939 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); | |
2940 | ||
252b5132 RH |
2941 | hdr = &elf_tdata (abfd)->strtab_hdr; |
2942 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); | |
2943 | ||
2944 | elf_tdata (abfd)->next_file_pos = off; | |
2945 | ||
2946 | /* Now that we know where the .strtab section goes, write it | |
2947 | out. */ | |
2948 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
2949 | || ! _bfd_stringtab_emit (abfd, strtab)) | |
2950 | return false; | |
2951 | _bfd_stringtab_free (strtab); | |
2952 | } | |
2953 | ||
2954 | abfd->output_has_begun = true; | |
2955 | ||
2956 | return true; | |
2957 | } | |
2958 | ||
2959 | /* Create a mapping from a set of sections to a program segment. */ | |
2960 | ||
2961 | static INLINE struct elf_segment_map * | |
2962 | make_mapping (abfd, sections, from, to, phdr) | |
2963 | bfd *abfd; | |
2964 | asection **sections; | |
2965 | unsigned int from; | |
2966 | unsigned int to; | |
2967 | boolean phdr; | |
2968 | { | |
2969 | struct elf_segment_map *m; | |
2970 | unsigned int i; | |
2971 | asection **hdrpp; | |
dc810e39 | 2972 | bfd_size_type amt; |
252b5132 | 2973 | |
dc810e39 AM |
2974 | amt = sizeof (struct elf_segment_map); |
2975 | amt += (to - from - 1) * sizeof (asection *); | |
2976 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
2977 | if (m == NULL) |
2978 | return NULL; | |
2979 | m->next = NULL; | |
2980 | m->p_type = PT_LOAD; | |
2981 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
2982 | m->sections[i - from] = *hdrpp; | |
2983 | m->count = to - from; | |
2984 | ||
2985 | if (from == 0 && phdr) | |
2986 | { | |
2987 | /* Include the headers in the first PT_LOAD segment. */ | |
2988 | m->includes_filehdr = 1; | |
2989 | m->includes_phdrs = 1; | |
2990 | } | |
2991 | ||
2992 | return m; | |
2993 | } | |
2994 | ||
2995 | /* Set up a mapping from BFD sections to program segments. */ | |
2996 | ||
2997 | static boolean | |
2998 | map_sections_to_segments (abfd) | |
2999 | bfd *abfd; | |
3000 | { | |
3001 | asection **sections = NULL; | |
3002 | asection *s; | |
3003 | unsigned int i; | |
3004 | unsigned int count; | |
3005 | struct elf_segment_map *mfirst; | |
3006 | struct elf_segment_map **pm; | |
3007 | struct elf_segment_map *m; | |
3008 | asection *last_hdr; | |
3009 | unsigned int phdr_index; | |
3010 | bfd_vma maxpagesize; | |
3011 | asection **hdrpp; | |
3012 | boolean phdr_in_segment = true; | |
3013 | boolean writable; | |
13ae64f3 JJ |
3014 | int tls_count = 0; |
3015 | asection *first_tls = NULL; | |
65765700 | 3016 | asection *dynsec, *eh_frame_hdr; |
dc810e39 | 3017 | bfd_size_type amt; |
252b5132 RH |
3018 | |
3019 | if (elf_tdata (abfd)->segment_map != NULL) | |
3020 | return true; | |
3021 | ||
3022 | if (bfd_count_sections (abfd) == 0) | |
3023 | return true; | |
3024 | ||
3025 | /* Select the allocated sections, and sort them. */ | |
3026 | ||
dc810e39 AM |
3027 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
3028 | sections = (asection **) bfd_malloc (amt); | |
252b5132 RH |
3029 | if (sections == NULL) |
3030 | goto error_return; | |
3031 | ||
3032 | i = 0; | |
3033 | for (s = abfd->sections; s != NULL; s = s->next) | |
3034 | { | |
3035 | if ((s->flags & SEC_ALLOC) != 0) | |
3036 | { | |
3037 | sections[i] = s; | |
3038 | ++i; | |
3039 | } | |
3040 | } | |
3041 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
3042 | count = i; | |
3043 | ||
3044 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); | |
3045 | ||
3046 | /* Build the mapping. */ | |
3047 | ||
3048 | mfirst = NULL; | |
3049 | pm = &mfirst; | |
3050 | ||
3051 | /* If we have a .interp section, then create a PT_PHDR segment for | |
3052 | the program headers and a PT_INTERP segment for the .interp | |
3053 | section. */ | |
3054 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3055 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3056 | { | |
dc810e39 AM |
3057 | amt = sizeof (struct elf_segment_map); |
3058 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
3059 | if (m == NULL) |
3060 | goto error_return; | |
3061 | m->next = NULL; | |
3062 | m->p_type = PT_PHDR; | |
3063 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |
3064 | m->p_flags = PF_R | PF_X; | |
3065 | m->p_flags_valid = 1; | |
3066 | m->includes_phdrs = 1; | |
3067 | ||
3068 | *pm = m; | |
3069 | pm = &m->next; | |
3070 | ||
dc810e39 AM |
3071 | amt = sizeof (struct elf_segment_map); |
3072 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
3073 | if (m == NULL) |
3074 | goto error_return; | |
3075 | m->next = NULL; | |
3076 | m->p_type = PT_INTERP; | |
3077 | m->count = 1; | |
3078 | m->sections[0] = s; | |
3079 | ||
3080 | *pm = m; | |
3081 | pm = &m->next; | |
3082 | } | |
3083 | ||
3084 | /* Look through the sections. We put sections in the same program | |
3085 | segment when the start of the second section can be placed within | |
3086 | a few bytes of the end of the first section. */ | |
3087 | last_hdr = NULL; | |
3088 | phdr_index = 0; | |
3089 | maxpagesize = get_elf_backend_data (abfd)->maxpagesize; | |
3090 | writable = false; | |
3091 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
3092 | if (dynsec != NULL | |
3093 | && (dynsec->flags & SEC_LOAD) == 0) | |
3094 | dynsec = NULL; | |
3095 | ||
3096 | /* Deal with -Ttext or something similar such that the first section | |
3097 | is not adjacent to the program headers. This is an | |
3098 | approximation, since at this point we don't know exactly how many | |
3099 | program headers we will need. */ | |
3100 | if (count > 0) | |
3101 | { | |
3102 | bfd_size_type phdr_size; | |
3103 | ||
3104 | phdr_size = elf_tdata (abfd)->program_header_size; | |
3105 | if (phdr_size == 0) | |
3106 | phdr_size = get_elf_backend_data (abfd)->s->sizeof_phdr; | |
3107 | if ((abfd->flags & D_PAGED) == 0 | |
3108 | || sections[0]->lma < phdr_size | |
3109 | || sections[0]->lma % maxpagesize < phdr_size % maxpagesize) | |
3110 | phdr_in_segment = false; | |
3111 | } | |
3112 | ||
3113 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) | |
3114 | { | |
3115 | asection *hdr; | |
3116 | boolean new_segment; | |
3117 | ||
3118 | hdr = *hdrpp; | |
3119 | ||
3120 | /* See if this section and the last one will fit in the same | |
3121 | segment. */ | |
3122 | ||
3123 | if (last_hdr == NULL) | |
3124 | { | |
3125 | /* If we don't have a segment yet, then we don't need a new | |
3126 | one (we build the last one after this loop). */ | |
3127 | new_segment = false; | |
3128 | } | |
3129 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
3130 | { | |
3131 | /* If this section has a different relation between the | |
3132 | virtual address and the load address, then we need a new | |
3133 | segment. */ | |
3134 | new_segment = true; | |
3135 | } | |
3136 | else if (BFD_ALIGN (last_hdr->lma + last_hdr->_raw_size, maxpagesize) | |
3137 | < BFD_ALIGN (hdr->lma, maxpagesize)) | |
3138 | { | |
3139 | /* If putting this section in this segment would force us to | |
3140 | skip a page in the segment, then we need a new segment. */ | |
3141 | new_segment = true; | |
3142 | } | |
3143 | else if ((last_hdr->flags & SEC_LOAD) == 0 | |
3144 | && (hdr->flags & SEC_LOAD) != 0) | |
3145 | { | |
3146 | /* We don't want to put a loadable section after a | |
3147 | nonloadable section in the same segment. */ | |
3148 | new_segment = true; | |
3149 | } | |
3150 | else if ((abfd->flags & D_PAGED) == 0) | |
3151 | { | |
3152 | /* If the file is not demand paged, which means that we | |
3153 | don't require the sections to be correctly aligned in the | |
3154 | file, then there is no other reason for a new segment. */ | |
3155 | new_segment = false; | |
3156 | } | |
3157 | else if (! writable | |
3158 | && (hdr->flags & SEC_READONLY) == 0 | |
3159 | && (BFD_ALIGN (last_hdr->lma + last_hdr->_raw_size, maxpagesize) | |
3160 | == hdr->lma)) | |
3161 | { | |
3162 | /* We don't want to put a writable section in a read only | |
3163 | segment, unless they are on the same page in memory | |
3164 | anyhow. We already know that the last section does not | |
3165 | bring us past the current section on the page, so the | |
3166 | only case in which the new section is not on the same | |
3167 | page as the previous section is when the previous section | |
3168 | ends precisely on a page boundary. */ | |
3169 | new_segment = true; | |
3170 | } | |
3171 | else | |
3172 | { | |
3173 | /* Otherwise, we can use the same segment. */ | |
3174 | new_segment = false; | |
3175 | } | |
3176 | ||
3177 | if (! new_segment) | |
3178 | { | |
3179 | if ((hdr->flags & SEC_READONLY) == 0) | |
3180 | writable = true; | |
3181 | last_hdr = hdr; | |
3182 | continue; | |
3183 | } | |
3184 | ||
3185 | /* We need a new program segment. We must create a new program | |
3186 | header holding all the sections from phdr_index until hdr. */ | |
3187 | ||
3188 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
3189 | if (m == NULL) | |
3190 | goto error_return; | |
3191 | ||
3192 | *pm = m; | |
3193 | pm = &m->next; | |
3194 | ||
3195 | if ((hdr->flags & SEC_READONLY) == 0) | |
3196 | writable = true; | |
3197 | else | |
3198 | writable = false; | |
3199 | ||
3200 | last_hdr = hdr; | |
3201 | phdr_index = i; | |
3202 | phdr_in_segment = false; | |
3203 | } | |
3204 | ||
3205 | /* Create a final PT_LOAD program segment. */ | |
3206 | if (last_hdr != NULL) | |
3207 | { | |
3208 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |
3209 | if (m == NULL) | |
3210 | goto error_return; | |
3211 | ||
3212 | *pm = m; | |
3213 | pm = &m->next; | |
3214 | } | |
3215 | ||
3216 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ | |
3217 | if (dynsec != NULL) | |
3218 | { | |
dc810e39 AM |
3219 | amt = sizeof (struct elf_segment_map); |
3220 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
3221 | if (m == NULL) |
3222 | goto error_return; | |
3223 | m->next = NULL; | |
3224 | m->p_type = PT_DYNAMIC; | |
3225 | m->count = 1; | |
3226 | m->sections[0] = dynsec; | |
3227 | ||
3228 | *pm = m; | |
3229 | pm = &m->next; | |
3230 | } | |
3231 | ||
3232 | /* For each loadable .note section, add a PT_NOTE segment. We don't | |
3233 | use bfd_get_section_by_name, because if we link together | |
3234 | nonloadable .note sections and loadable .note sections, we will | |
3235 | generate two .note sections in the output file. FIXME: Using | |
3236 | names for section types is bogus anyhow. */ | |
3237 | for (s = abfd->sections; s != NULL; s = s->next) | |
3238 | { | |
3239 | if ((s->flags & SEC_LOAD) != 0 | |
3240 | && strncmp (s->name, ".note", 5) == 0) | |
3241 | { | |
dc810e39 AM |
3242 | amt = sizeof (struct elf_segment_map); |
3243 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
3244 | if (m == NULL) |
3245 | goto error_return; | |
3246 | m->next = NULL; | |
3247 | m->p_type = PT_NOTE; | |
3248 | m->count = 1; | |
3249 | m->sections[0] = s; | |
3250 | ||
3251 | *pm = m; | |
3252 | pm = &m->next; | |
3253 | } | |
13ae64f3 JJ |
3254 | if (s->flags & SEC_THREAD_LOCAL) |
3255 | { | |
3256 | if (! tls_count) | |
3257 | first_tls = s; | |
3258 | tls_count++; | |
3259 | } | |
3260 | } | |
3261 | ||
3262 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ | |
3263 | if (tls_count > 0) | |
3264 | { | |
3265 | int i; | |
3266 | ||
3267 | amt = sizeof (struct elf_segment_map); | |
3268 | amt += (tls_count - 1) * sizeof (asection *); | |
3269 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
3270 | if (m == NULL) | |
3271 | goto error_return; | |
3272 | m->next = NULL; | |
3273 | m->p_type = PT_TLS; | |
3274 | m->count = tls_count; | |
3275 | /* Mandated PF_R. */ | |
3276 | m->p_flags = PF_R; | |
3277 | m->p_flags_valid = 1; | |
3278 | for (i = 0; i < tls_count; ++i) | |
3279 | { | |
3280 | BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL); | |
3281 | m->sections[i] = first_tls; | |
3282 | first_tls = first_tls->next; | |
3283 | } | |
3284 | ||
3285 | *pm = m; | |
3286 | pm = &m->next; | |
252b5132 RH |
3287 | } |
3288 | ||
65765700 JJ |
3289 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
3290 | segment. */ | |
9ad5cbcf AM |
3291 | eh_frame_hdr = NULL; |
3292 | if (elf_tdata (abfd)->eh_frame_hdr) | |
3293 | eh_frame_hdr = bfd_get_section_by_name (abfd, ".eh_frame_hdr"); | |
65765700 JJ |
3294 | if (eh_frame_hdr != NULL && (eh_frame_hdr->flags & SEC_LOAD)) |
3295 | { | |
3296 | amt = sizeof (struct elf_segment_map); | |
3297 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
3298 | if (m == NULL) | |
3299 | goto error_return; | |
3300 | m->next = NULL; | |
3301 | m->p_type = PT_GNU_EH_FRAME; | |
3302 | m->count = 1; | |
3303 | m->sections[0] = eh_frame_hdr; | |
3304 | ||
3305 | *pm = m; | |
3306 | pm = &m->next; | |
3307 | } | |
3308 | ||
252b5132 RH |
3309 | free (sections); |
3310 | sections = NULL; | |
3311 | ||
3312 | elf_tdata (abfd)->segment_map = mfirst; | |
3313 | return true; | |
3314 | ||
3315 | error_return: | |
3316 | if (sections != NULL) | |
3317 | free (sections); | |
3318 | return false; | |
3319 | } | |
3320 | ||
3321 | /* Sort sections by address. */ | |
3322 | ||
3323 | static int | |
3324 | elf_sort_sections (arg1, arg2) | |
3325 | const PTR arg1; | |
3326 | const PTR arg2; | |
3327 | { | |
3328 | const asection *sec1 = *(const asection **) arg1; | |
3329 | const asection *sec2 = *(const asection **) arg2; | |
3330 | ||
3331 | /* Sort by LMA first, since this is the address used to | |
3332 | place the section into a segment. */ | |
3333 | if (sec1->lma < sec2->lma) | |
3334 | return -1; | |
3335 | else if (sec1->lma > sec2->lma) | |
3336 | return 1; | |
3337 | ||
3338 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
3339 | the same, and this will do nothing. */ | |
3340 | if (sec1->vma < sec2->vma) | |
3341 | return -1; | |
3342 | else if (sec1->vma > sec2->vma) | |
3343 | return 1; | |
3344 | ||
3345 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
3346 | ||
3347 | #define TOEND(x) (((x)->flags & SEC_LOAD) == 0) | |
3348 | ||
3349 | if (TOEND (sec1)) | |
3350 | { | |
3351 | if (TOEND (sec2)) | |
00a7cdc5 NC |
3352 | { |
3353 | /* If the indicies are the same, do not return 0 | |
3354 | here, but continue to try the next comparison. */ | |
3355 | if (sec1->target_index - sec2->target_index != 0) | |
3356 | return sec1->target_index - sec2->target_index; | |
3357 | } | |
252b5132 RH |
3358 | else |
3359 | return 1; | |
3360 | } | |
00a7cdc5 | 3361 | else if (TOEND (sec2)) |
252b5132 RH |
3362 | return -1; |
3363 | ||
3364 | #undef TOEND | |
3365 | ||
00a7cdc5 NC |
3366 | /* Sort by size, to put zero sized sections |
3367 | before others at the same address. */ | |
252b5132 RH |
3368 | |
3369 | if (sec1->_raw_size < sec2->_raw_size) | |
3370 | return -1; | |
3371 | if (sec1->_raw_size > sec2->_raw_size) | |
3372 | return 1; | |
3373 | ||
3374 | return sec1->target_index - sec2->target_index; | |
3375 | } | |
3376 | ||
3377 | /* Assign file positions to the sections based on the mapping from | |
3378 | sections to segments. This function also sets up some fields in | |
3379 | the file header, and writes out the program headers. */ | |
3380 | ||
3381 | static boolean | |
3382 | assign_file_positions_for_segments (abfd) | |
3383 | bfd *abfd; | |
3384 | { | |
3385 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3386 | unsigned int count; | |
3387 | struct elf_segment_map *m; | |
3388 | unsigned int alloc; | |
3389 | Elf_Internal_Phdr *phdrs; | |
3390 | file_ptr off, voff; | |
3391 | bfd_vma filehdr_vaddr, filehdr_paddr; | |
3392 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
3393 | Elf_Internal_Phdr *p; | |
dc810e39 | 3394 | bfd_size_type amt; |
252b5132 RH |
3395 | |
3396 | if (elf_tdata (abfd)->segment_map == NULL) | |
3397 | { | |
3398 | if (! map_sections_to_segments (abfd)) | |
3399 | return false; | |
3400 | } | |
3401 | ||
3402 | if (bed->elf_backend_modify_segment_map) | |
3403 | { | |
3404 | if (! (*bed->elf_backend_modify_segment_map) (abfd)) | |
3405 | return false; | |
3406 | } | |
3407 | ||
3408 | count = 0; | |
3409 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
3410 | ++count; | |
3411 | ||
3412 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
3413 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
3414 | elf_elfheader (abfd)->e_phnum = count; | |
3415 | ||
3416 | if (count == 0) | |
3417 | return true; | |
3418 | ||
3419 | /* If we already counted the number of program segments, make sure | |
3420 | that we allocated enough space. This happens when SIZEOF_HEADERS | |
3421 | is used in a linker script. */ | |
3422 | alloc = elf_tdata (abfd)->program_header_size / bed->s->sizeof_phdr; | |
3423 | if (alloc != 0 && count > alloc) | |
3424 | { | |
3425 | ((*_bfd_error_handler) | |
3426 | (_("%s: Not enough room for program headers (allocated %u, need %u)"), | |
3427 | bfd_get_filename (abfd), alloc, count)); | |
3428 | bfd_set_error (bfd_error_bad_value); | |
3429 | return false; | |
3430 | } | |
3431 | ||
3432 | if (alloc == 0) | |
3433 | alloc = count; | |
3434 | ||
dc810e39 AM |
3435 | amt = alloc * sizeof (Elf_Internal_Phdr); |
3436 | phdrs = (Elf_Internal_Phdr *) bfd_alloc (abfd, amt); | |
252b5132 RH |
3437 | if (phdrs == NULL) |
3438 | return false; | |
3439 | ||
3440 | off = bed->s->sizeof_ehdr; | |
3441 | off += alloc * bed->s->sizeof_phdr; | |
3442 | ||
3443 | filehdr_vaddr = 0; | |
3444 | filehdr_paddr = 0; | |
3445 | phdrs_vaddr = 0; | |
3446 | phdrs_paddr = 0; | |
3447 | ||
3448 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; | |
3449 | m != NULL; | |
3450 | m = m->next, p++) | |
3451 | { | |
3452 | unsigned int i; | |
3453 | asection **secpp; | |
3454 | ||
3455 | /* If elf_segment_map is not from map_sections_to_segments, the | |
52e9b619 MS |
3456 | sections may not be correctly ordered. NOTE: sorting should |
3457 | not be done to the PT_NOTE section of a corefile, which may | |
3458 | contain several pseudo-sections artificially created by bfd. | |
3459 | Sorting these pseudo-sections breaks things badly. */ | |
3460 | if (m->count > 1 | |
3461 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
3462 | && m->p_type == PT_NOTE)) | |
252b5132 RH |
3463 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
3464 | elf_sort_sections); | |
3465 | ||
3466 | p->p_type = m->p_type; | |
28a7f3e7 | 3467 | p->p_flags = m->p_flags; |
252b5132 RH |
3468 | |
3469 | if (p->p_type == PT_LOAD | |
3470 | && m->count > 0 | |
3471 | && (m->sections[0]->flags & SEC_ALLOC) != 0) | |
3472 | { | |
3473 | if ((abfd->flags & D_PAGED) != 0) | |
3474 | off += (m->sections[0]->vma - off) % bed->maxpagesize; | |
3475 | else | |
3476 | { | |
3477 | bfd_size_type align; | |
3478 | ||
3479 | align = 0; | |
3480 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) | |
3481 | { | |
3482 | bfd_size_type secalign; | |
3483 | ||
3484 | secalign = bfd_get_section_alignment (abfd, *secpp); | |
3485 | if (secalign > align) | |
3486 | align = secalign; | |
3487 | } | |
3488 | ||
3489 | off += (m->sections[0]->vma - off) % (1 << align); | |
3490 | } | |
3491 | } | |
3492 | ||
3493 | if (m->count == 0) | |
3494 | p->p_vaddr = 0; | |
3495 | else | |
3496 | p->p_vaddr = m->sections[0]->vma; | |
3497 | ||
3498 | if (m->p_paddr_valid) | |
3499 | p->p_paddr = m->p_paddr; | |
3500 | else if (m->count == 0) | |
3501 | p->p_paddr = 0; | |
3502 | else | |
3503 | p->p_paddr = m->sections[0]->lma; | |
3504 | ||
3505 | if (p->p_type == PT_LOAD | |
3506 | && (abfd->flags & D_PAGED) != 0) | |
3507 | p->p_align = bed->maxpagesize; | |
3508 | else if (m->count == 0) | |
3509 | p->p_align = bed->s->file_align; | |
3510 | else | |
3511 | p->p_align = 0; | |
3512 | ||
3513 | p->p_offset = 0; | |
3514 | p->p_filesz = 0; | |
3515 | p->p_memsz = 0; | |
3516 | ||
3517 | if (m->includes_filehdr) | |
3518 | { | |
3519 | if (! m->p_flags_valid) | |
3520 | p->p_flags |= PF_R; | |
3521 | p->p_offset = 0; | |
3522 | p->p_filesz = bed->s->sizeof_ehdr; | |
3523 | p->p_memsz = bed->s->sizeof_ehdr; | |
3524 | if (m->count > 0) | |
3525 | { | |
3526 | BFD_ASSERT (p->p_type == PT_LOAD); | |
3527 | ||
3528 | if (p->p_vaddr < (bfd_vma) off) | |
3529 | { | |
caf47ea6 AM |
3530 | (*_bfd_error_handler) |
3531 | (_("%s: Not enough room for program headers, try linking with -N"), | |
3532 | bfd_get_filename (abfd)); | |
252b5132 RH |
3533 | bfd_set_error (bfd_error_bad_value); |
3534 | return false; | |
3535 | } | |
3536 | ||
3537 | p->p_vaddr -= off; | |
3538 | if (! m->p_paddr_valid) | |
3539 | p->p_paddr -= off; | |
3540 | } | |
3541 | if (p->p_type == PT_LOAD) | |
3542 | { | |
3543 | filehdr_vaddr = p->p_vaddr; | |
3544 | filehdr_paddr = p->p_paddr; | |
3545 | } | |
3546 | } | |
3547 | ||
3548 | if (m->includes_phdrs) | |
3549 | { | |
3550 | if (! m->p_flags_valid) | |
3551 | p->p_flags |= PF_R; | |
3552 | ||
3553 | if (m->includes_filehdr) | |
3554 | { | |
3555 | if (p->p_type == PT_LOAD) | |
3556 | { | |
3557 | phdrs_vaddr = p->p_vaddr + bed->s->sizeof_ehdr; | |
3558 | phdrs_paddr = p->p_paddr + bed->s->sizeof_ehdr; | |
3559 | } | |
3560 | } | |
3561 | else | |
3562 | { | |
3563 | p->p_offset = bed->s->sizeof_ehdr; | |
3564 | ||
3565 | if (m->count > 0) | |
3566 | { | |
3567 | BFD_ASSERT (p->p_type == PT_LOAD); | |
3568 | p->p_vaddr -= off - p->p_offset; | |
3569 | if (! m->p_paddr_valid) | |
3570 | p->p_paddr -= off - p->p_offset; | |
3571 | } | |
3572 | ||
3573 | if (p->p_type == PT_LOAD) | |
3574 | { | |
3575 | phdrs_vaddr = p->p_vaddr; | |
3576 | phdrs_paddr = p->p_paddr; | |
3577 | } | |
3578 | else | |
3579 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
3580 | } | |
3581 | ||
3582 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
3583 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
3584 | } | |
3585 | ||
3586 | if (p->p_type == PT_LOAD | |
3587 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
3588 | { | |
3589 | if (! m->includes_filehdr && ! m->includes_phdrs) | |
3590 | p->p_offset = off; | |
3591 | else | |
3592 | { | |
3593 | file_ptr adjust; | |
3594 | ||
3595 | adjust = off - (p->p_offset + p->p_filesz); | |
3596 | p->p_filesz += adjust; | |
3597 | p->p_memsz += adjust; | |
3598 | } | |
3599 | } | |
3600 | ||
3601 | voff = off; | |
3602 | ||
3603 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) | |
3604 | { | |
3605 | asection *sec; | |
3606 | flagword flags; | |
3607 | bfd_size_type align; | |
3608 | ||
3609 | sec = *secpp; | |
3610 | flags = sec->flags; | |
3611 | align = 1 << bfd_get_section_alignment (abfd, sec); | |
3612 | ||
3613 | /* The section may have artificial alignment forced by a | |
3614 | link script. Notice this case by the gap between the | |
f5ffc919 NC |
3615 | cumulative phdr lma and the section's lma. */ |
3616 | if (p->p_paddr + p->p_memsz < sec->lma) | |
252b5132 | 3617 | { |
f5ffc919 | 3618 | bfd_vma adjust = sec->lma - (p->p_paddr + p->p_memsz); |
252b5132 RH |
3619 | |
3620 | p->p_memsz += adjust; | |
3621 | off += adjust; | |
3622 | voff += adjust; | |
3623 | if ((flags & SEC_LOAD) != 0) | |
3624 | p->p_filesz += adjust; | |
3625 | } | |
3626 | ||
3627 | if (p->p_type == PT_LOAD) | |
3628 | { | |
3629 | bfd_signed_vma adjust; | |
3630 | ||
3631 | if ((flags & SEC_LOAD) != 0) | |
3632 | { | |
3633 | adjust = sec->lma - (p->p_paddr + p->p_memsz); | |
3634 | if (adjust < 0) | |
3635 | adjust = 0; | |
3636 | } | |
3637 | else if ((flags & SEC_ALLOC) != 0) | |
3638 | { | |
3639 | /* The section VMA must equal the file position | |
3640 | modulo the page size. FIXME: I'm not sure if | |
3641 | this adjustment is really necessary. We used to | |
3642 | not have the SEC_LOAD case just above, and then | |
3643 | this was necessary, but now I'm not sure. */ | |
3644 | if ((abfd->flags & D_PAGED) != 0) | |
3645 | adjust = (sec->vma - voff) % bed->maxpagesize; | |
3646 | else | |
3647 | adjust = (sec->vma - voff) % align; | |
3648 | } | |
3649 | else | |
3650 | adjust = 0; | |
3651 | ||
3652 | if (adjust != 0) | |
3653 | { | |
3654 | if (i == 0) | |
3655 | { | |
cdc7c09f NC |
3656 | (* _bfd_error_handler) (_("\ |
3657 | Error: First section in segment (%s) starts at 0x%x whereas the segment starts at 0x%x"), | |
3658 | bfd_section_name (abfd, sec), | |
3659 | sec->lma, | |
3660 | p->p_paddr); | |
252b5132 RH |
3661 | return false; |
3662 | } | |
3663 | p->p_memsz += adjust; | |
3664 | off += adjust; | |
3665 | voff += adjust; | |
3666 | if ((flags & SEC_LOAD) != 0) | |
3667 | p->p_filesz += adjust; | |
3668 | } | |
3669 | ||
3670 | sec->filepos = off; | |
3671 | ||
3672 | /* We check SEC_HAS_CONTENTS here because if NOLOAD is | |
3673 | used in a linker script we may have a section with | |
3674 | SEC_LOAD clear but which is supposed to have | |
3675 | contents. */ | |
3676 | if ((flags & SEC_LOAD) != 0 | |
3677 | || (flags & SEC_HAS_CONTENTS) != 0) | |
3678 | off += sec->_raw_size; | |
3679 | ||
3680 | if ((flags & SEC_ALLOC) != 0) | |
3681 | voff += sec->_raw_size; | |
3682 | } | |
3683 | ||
3684 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
3685 | { | |
4a938328 MS |
3686 | /* The actual "note" segment has i == 0. |
3687 | This is the one that actually contains everything. */ | |
3688 | if (i == 0) | |
3689 | { | |
252b5132 RH |
3690 | sec->filepos = off; |
3691 | p->p_filesz = sec->_raw_size; | |
3692 | off += sec->_raw_size; | |
3693 | voff = off; | |
3694 | } | |
4a938328 | 3695 | else |
252b5132 | 3696 | { |
4a938328 | 3697 | /* Fake sections -- don't need to be written. */ |
252b5132 RH |
3698 | sec->filepos = 0; |
3699 | sec->_raw_size = 0; | |
4a938328 | 3700 | flags = sec->flags = 0; |
252b5132 RH |
3701 | } |
3702 | p->p_memsz = 0; | |
3703 | p->p_align = 1; | |
3704 | } | |
3705 | else | |
3706 | { | |
3707 | p->p_memsz += sec->_raw_size; | |
3708 | ||
3709 | if ((flags & SEC_LOAD) != 0) | |
3710 | p->p_filesz += sec->_raw_size; | |
3711 | ||
13ae64f3 JJ |
3712 | if (p->p_type == PT_TLS |
3713 | && sec->_raw_size == 0 | |
3714 | && (sec->flags & SEC_HAS_CONTENTS) == 0) | |
3715 | { | |
3716 | struct bfd_link_order *o; | |
3717 | bfd_vma tbss_size = 0; | |
3718 | ||
3719 | for (o = sec->link_order_head; o != NULL; o = o->next) | |
3720 | if (tbss_size < o->offset + o->size) | |
3721 | tbss_size = o->offset + o->size; | |
3722 | ||
3723 | p->p_memsz += tbss_size; | |
3724 | } | |
3725 | ||
252b5132 RH |
3726 | if (align > p->p_align |
3727 | && (p->p_type != PT_LOAD || (abfd->flags & D_PAGED) == 0)) | |
3728 | p->p_align = align; | |
3729 | } | |
3730 | ||
3731 | if (! m->p_flags_valid) | |
3732 | { | |
3733 | p->p_flags |= PF_R; | |
3734 | if ((flags & SEC_CODE) != 0) | |
3735 | p->p_flags |= PF_X; | |
3736 | if ((flags & SEC_READONLY) == 0) | |
3737 | p->p_flags |= PF_W; | |
3738 | } | |
3739 | } | |
3740 | } | |
3741 | ||
3742 | /* Now that we have set the section file positions, we can set up | |
3743 | the file positions for the non PT_LOAD segments. */ | |
3744 | for (m = elf_tdata (abfd)->segment_map, p = phdrs; | |
3745 | m != NULL; | |
3746 | m = m->next, p++) | |
3747 | { | |
3748 | if (p->p_type != PT_LOAD && m->count > 0) | |
3749 | { | |
3750 | BFD_ASSERT (! m->includes_filehdr && ! m->includes_phdrs); | |
3751 | p->p_offset = m->sections[0]->filepos; | |
3752 | } | |
3753 | if (m->count == 0) | |
3754 | { | |
3755 | if (m->includes_filehdr) | |
3756 | { | |
3757 | p->p_vaddr = filehdr_vaddr; | |
3758 | if (! m->p_paddr_valid) | |
3759 | p->p_paddr = filehdr_paddr; | |
3760 | } | |
3761 | else if (m->includes_phdrs) | |
3762 | { | |
3763 | p->p_vaddr = phdrs_vaddr; | |
3764 | if (! m->p_paddr_valid) | |
3765 | p->p_paddr = phdrs_paddr; | |
3766 | } | |
3767 | } | |
3768 | } | |
3769 | ||
caf47ea6 AM |
3770 | /* If additional nonloadable filepos adjustments are required, |
3771 | do them now. */ | |
3772 | if (bed->set_nonloadable_filepos) | |
3773 | (*bed->set_nonloadable_filepos) (abfd, phdrs); | |
3774 | ||
252b5132 RH |
3775 | /* Clear out any program headers we allocated but did not use. */ |
3776 | for (; count < alloc; count++, p++) | |
3777 | { | |
3778 | memset (p, 0, sizeof *p); | |
3779 | p->p_type = PT_NULL; | |
3780 | } | |
3781 | ||
3782 | elf_tdata (abfd)->phdr = phdrs; | |
3783 | ||
3784 | elf_tdata (abfd)->next_file_pos = off; | |
3785 | ||
3786 | /* Write out the program headers. */ | |
dc810e39 | 3787 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
252b5132 RH |
3788 | || bed->s->write_out_phdrs (abfd, phdrs, alloc) != 0) |
3789 | return false; | |
3790 | ||
3791 | return true; | |
3792 | } | |
3793 | ||
3794 | /* Get the size of the program header. | |
3795 | ||
3796 | If this is called by the linker before any of the section VMA's are set, it | |
3797 | can't calculate the correct value for a strange memory layout. This only | |
3798 | happens when SIZEOF_HEADERS is used in a linker script. In this case, | |
3799 | SORTED_HDRS is NULL and we assume the normal scenario of one text and one | |
3800 | data segment (exclusive of .interp and .dynamic). | |
3801 | ||
3802 | ??? User written scripts must either not use SIZEOF_HEADERS, or assume there | |
3803 | will be two segments. */ | |
3804 | ||
3805 | static bfd_size_type | |
3806 | get_program_header_size (abfd) | |
3807 | bfd *abfd; | |
3808 | { | |
3809 | size_t segs; | |
3810 | asection *s; | |
3811 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3812 | ||
3813 | /* We can't return a different result each time we're called. */ | |
3814 | if (elf_tdata (abfd)->program_header_size != 0) | |
3815 | return elf_tdata (abfd)->program_header_size; | |
3816 | ||
3817 | if (elf_tdata (abfd)->segment_map != NULL) | |
3818 | { | |
3819 | struct elf_segment_map *m; | |
3820 | ||
3821 | segs = 0; | |
3822 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
3823 | ++segs; | |
3824 | elf_tdata (abfd)->program_header_size = segs * bed->s->sizeof_phdr; | |
3825 | return elf_tdata (abfd)->program_header_size; | |
3826 | } | |
3827 | ||
3828 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
3829 | and one for data. */ | |
3830 | segs = 2; | |
3831 | ||
3832 | s = bfd_get_section_by_name (abfd, ".interp"); | |
3833 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3834 | { | |
3835 | /* If we have a loadable interpreter section, we need a | |
3836 | PT_INTERP segment. In this case, assume we also need a | |
3837 | PT_PHDR segment, although that may not be true for all | |
3838 | targets. */ | |
3839 | segs += 2; | |
3840 | } | |
3841 | ||
3842 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
3843 | { | |
3844 | /* We need a PT_DYNAMIC segment. */ | |
3845 | ++segs; | |
3846 | } | |
3847 | ||
65765700 JJ |
3848 | if (elf_tdata (abfd)->eh_frame_hdr |
3849 | && bfd_get_section_by_name (abfd, ".eh_frame_hdr") != NULL) | |
3850 | { | |
3851 | /* We need a PT_GNU_EH_FRAME segment. */ | |
3852 | ++segs; | |
3853 | } | |
3854 | ||
252b5132 RH |
3855 | for (s = abfd->sections; s != NULL; s = s->next) |
3856 | { | |
3857 | if ((s->flags & SEC_LOAD) != 0 | |
3858 | && strncmp (s->name, ".note", 5) == 0) | |
3859 | { | |
3860 | /* We need a PT_NOTE segment. */ | |
3861 | ++segs; | |
3862 | } | |
3863 | } | |
3864 | ||
13ae64f3 JJ |
3865 | for (s = abfd->sections; s != NULL; s = s->next) |
3866 | { | |
3867 | if (s->flags & SEC_THREAD_LOCAL) | |
3868 | { | |
3869 | /* We need a PT_TLS segment. */ | |
3870 | ++segs; | |
3871 | break; | |
3872 | } | |
3873 | } | |
3874 | ||
252b5132 RH |
3875 | /* Let the backend count up any program headers it might need. */ |
3876 | if (bed->elf_backend_additional_program_headers) | |
3877 | { | |
3878 | int a; | |
3879 | ||
3880 | a = (*bed->elf_backend_additional_program_headers) (abfd); | |
3881 | if (a == -1) | |
3882 | abort (); | |
3883 | segs += a; | |
3884 | } | |
3885 | ||
3886 | elf_tdata (abfd)->program_header_size = segs * bed->s->sizeof_phdr; | |
3887 | return elf_tdata (abfd)->program_header_size; | |
3888 | } | |
3889 | ||
3890 | /* Work out the file positions of all the sections. This is called by | |
3891 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
3892 | VMAs must be known before this is called. | |
3893 | ||
3894 | We do not consider reloc sections at this point, unless they form | |
3895 | part of the loadable image. Reloc sections are assigned file | |
3896 | positions in assign_file_positions_for_relocs, which is called by | |
3897 | write_object_contents and final_link. | |
3898 | ||
3899 | We also don't set the positions of the .symtab and .strtab here. */ | |
3900 | ||
3901 | static boolean | |
3902 | assign_file_positions_except_relocs (abfd) | |
3903 | bfd *abfd; | |
3904 | { | |
3905 | struct elf_obj_tdata * const tdata = elf_tdata (abfd); | |
3906 | Elf_Internal_Ehdr * const i_ehdrp = elf_elfheader (abfd); | |
3907 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); | |
9ad5cbcf | 3908 | unsigned int num_sec = elf_numsections (abfd); |
252b5132 RH |
3909 | file_ptr off; |
3910 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3911 | ||
3912 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
3913 | && bfd_get_format (abfd) != bfd_core) | |
3914 | { | |
3915 | Elf_Internal_Shdr **hdrpp; | |
3916 | unsigned int i; | |
3917 | ||
3918 | /* Start after the ELF header. */ | |
3919 | off = i_ehdrp->e_ehsize; | |
3920 | ||
3921 | /* We are not creating an executable, which means that we are | |
3922 | not creating a program header, and that the actual order of | |
3923 | the sections in the file is unimportant. */ | |
9ad5cbcf | 3924 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
3925 | { |
3926 | Elf_Internal_Shdr *hdr; | |
3927 | ||
3928 | hdr = *hdrpp; | |
9ad5cbcf AM |
3929 | if (hdr->sh_type == SHT_REL |
3930 | || hdr->sh_type == SHT_RELA | |
3931 | || i == tdata->symtab_section | |
3932 | || i == tdata->symtab_shndx_section | |
252b5132 RH |
3933 | || i == tdata->strtab_section) |
3934 | { | |
3935 | hdr->sh_offset = -1; | |
252b5132 | 3936 | } |
9ad5cbcf AM |
3937 | else |
3938 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); | |
252b5132 | 3939 | |
9ad5cbcf AM |
3940 | if (i == SHN_LORESERVE - 1) |
3941 | { | |
3942 | i += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
3943 | hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
3944 | } | |
252b5132 RH |
3945 | } |
3946 | } | |
3947 | else | |
3948 | { | |
3949 | unsigned int i; | |
3950 | Elf_Internal_Shdr **hdrpp; | |
3951 | ||
3952 | /* Assign file positions for the loaded sections based on the | |
3953 | assignment of sections to segments. */ | |
3954 | if (! assign_file_positions_for_segments (abfd)) | |
3955 | return false; | |
3956 | ||
3957 | /* Assign file positions for the other sections. */ | |
3958 | ||
3959 | off = elf_tdata (abfd)->next_file_pos; | |
9ad5cbcf | 3960 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
3961 | { |
3962 | Elf_Internal_Shdr *hdr; | |
3963 | ||
3964 | hdr = *hdrpp; | |
3965 | if (hdr->bfd_section != NULL | |
3966 | && hdr->bfd_section->filepos != 0) | |
3967 | hdr->sh_offset = hdr->bfd_section->filepos; | |
3968 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
3969 | { | |
3970 | ((*_bfd_error_handler) | |
3971 | (_("%s: warning: allocated section `%s' not in segment"), | |
3972 | bfd_get_filename (abfd), | |
3973 | (hdr->bfd_section == NULL | |
3974 | ? "*unknown*" | |
3975 | : hdr->bfd_section->name))); | |
3976 | if ((abfd->flags & D_PAGED) != 0) | |
3977 | off += (hdr->sh_addr - off) % bed->maxpagesize; | |
3978 | else | |
3979 | off += (hdr->sh_addr - off) % hdr->sh_addralign; | |
3980 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
3981 | false); | |
3982 | } | |
3983 | else if (hdr->sh_type == SHT_REL | |
3984 | || hdr->sh_type == SHT_RELA | |
3985 | || hdr == i_shdrpp[tdata->symtab_section] | |
9ad5cbcf | 3986 | || hdr == i_shdrpp[tdata->symtab_shndx_section] |
252b5132 RH |
3987 | || hdr == i_shdrpp[tdata->strtab_section]) |
3988 | hdr->sh_offset = -1; | |
3989 | else | |
3990 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); | |
9ad5cbcf AM |
3991 | |
3992 | if (i == SHN_LORESERVE - 1) | |
3993 | { | |
3994 | i += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
3995 | hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
3996 | } | |
252b5132 RH |
3997 | } |
3998 | } | |
3999 | ||
4000 | /* Place the section headers. */ | |
4001 | off = align_file_position (off, bed->s->file_align); | |
4002 | i_ehdrp->e_shoff = off; | |
4003 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
4004 | ||
4005 | elf_tdata (abfd)->next_file_pos = off; | |
4006 | ||
4007 | return true; | |
4008 | } | |
4009 | ||
4010 | static boolean | |
4011 | prep_headers (abfd) | |
4012 | bfd *abfd; | |
4013 | { | |
4014 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |
4015 | Elf_Internal_Phdr *i_phdrp = 0; /* Program header table, internal form */ | |
4016 | Elf_Internal_Shdr **i_shdrp; /* Section header table, internal form */ | |
2b0f7ef9 | 4017 | struct elf_strtab_hash *shstrtab; |
252b5132 RH |
4018 | struct elf_backend_data *bed = get_elf_backend_data (abfd); |
4019 | ||
4020 | i_ehdrp = elf_elfheader (abfd); | |
4021 | i_shdrp = elf_elfsections (abfd); | |
4022 | ||
2b0f7ef9 | 4023 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 RH |
4024 | if (shstrtab == NULL) |
4025 | return false; | |
4026 | ||
4027 | elf_shstrtab (abfd) = shstrtab; | |
4028 | ||
4029 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
4030 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
4031 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
4032 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
4033 | ||
4034 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
4035 | i_ehdrp->e_ident[EI_DATA] = | |
4036 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
4037 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
4038 | ||
252b5132 RH |
4039 | if ((abfd->flags & DYNAMIC) != 0) |
4040 | i_ehdrp->e_type = ET_DYN; | |
4041 | else if ((abfd->flags & EXEC_P) != 0) | |
4042 | i_ehdrp->e_type = ET_EXEC; | |
4043 | else if (bfd_get_format (abfd) == bfd_core) | |
4044 | i_ehdrp->e_type = ET_CORE; | |
4045 | else | |
4046 | i_ehdrp->e_type = ET_REL; | |
4047 | ||
4048 | switch (bfd_get_arch (abfd)) | |
4049 | { | |
4050 | case bfd_arch_unknown: | |
4051 | i_ehdrp->e_machine = EM_NONE; | |
4052 | break; | |
aa4f99bb AO |
4053 | |
4054 | /* There used to be a long list of cases here, each one setting | |
4055 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
4056 | in the corresponding bfd definition. To avoid duplication, | |
4057 | the switch was removed. Machines that need special handling | |
4058 | can generally do it in elf_backend_final_write_processing(), | |
4059 | unless they need the information earlier than the final write. | |
4060 | Such need can generally be supplied by replacing the tests for | |
4061 | e_machine with the conditions used to determine it. */ | |
252b5132 | 4062 | default: |
aa4f99bb AO |
4063 | if (get_elf_backend_data (abfd) != NULL) |
4064 | i_ehdrp->e_machine = get_elf_backend_data (abfd)->elf_machine_code; | |
4065 | else | |
4066 | i_ehdrp->e_machine = EM_NONE; | |
4067 | } | |
4068 | ||
252b5132 RH |
4069 | i_ehdrp->e_version = bed->s->ev_current; |
4070 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
4071 | ||
c044fabd | 4072 | /* No program header, for now. */ |
252b5132 RH |
4073 | i_ehdrp->e_phoff = 0; |
4074 | i_ehdrp->e_phentsize = 0; | |
4075 | i_ehdrp->e_phnum = 0; | |
4076 | ||
c044fabd | 4077 | /* Each bfd section is section header entry. */ |
252b5132 RH |
4078 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
4079 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
4080 | ||
c044fabd | 4081 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 RH |
4082 | if (abfd->flags & EXEC_P) |
4083 | { | |
c044fabd | 4084 | /* It all happens later. */ |
252b5132 RH |
4085 | #if 0 |
4086 | i_ehdrp->e_phentsize = sizeof (Elf_External_Phdr); | |
4087 | ||
4088 | /* elf_build_phdrs() returns a (NULL-terminated) array of | |
c044fabd | 4089 | Elf_Internal_Phdrs. */ |
252b5132 RH |
4090 | i_phdrp = elf_build_phdrs (abfd, i_ehdrp, i_shdrp, &i_ehdrp->e_phnum); |
4091 | i_ehdrp->e_phoff = outbase; | |
4092 | outbase += i_ehdrp->e_phentsize * i_ehdrp->e_phnum; | |
4093 | #endif | |
4094 | } | |
4095 | else | |
4096 | { | |
4097 | i_ehdrp->e_phentsize = 0; | |
4098 | i_phdrp = 0; | |
4099 | i_ehdrp->e_phoff = 0; | |
4100 | } | |
4101 | ||
4102 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
2b0f7ef9 | 4103 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", false); |
252b5132 | 4104 | elf_tdata (abfd)->strtab_hdr.sh_name = |
2b0f7ef9 | 4105 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", false); |
252b5132 | 4106 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
2b0f7ef9 | 4107 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", false); |
252b5132 RH |
4108 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
4109 | || elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 | |
4110 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) | |
4111 | return false; | |
4112 | ||
4113 | return true; | |
4114 | } | |
4115 | ||
4116 | /* Assign file positions for all the reloc sections which are not part | |
4117 | of the loadable file image. */ | |
4118 | ||
4119 | void | |
4120 | _bfd_elf_assign_file_positions_for_relocs (abfd) | |
4121 | bfd *abfd; | |
4122 | { | |
4123 | file_ptr off; | |
9ad5cbcf | 4124 | unsigned int i, num_sec; |
252b5132 RH |
4125 | Elf_Internal_Shdr **shdrpp; |
4126 | ||
4127 | off = elf_tdata (abfd)->next_file_pos; | |
4128 | ||
9ad5cbcf AM |
4129 | num_sec = elf_numsections (abfd); |
4130 | for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++) | |
252b5132 RH |
4131 | { |
4132 | Elf_Internal_Shdr *shdrp; | |
4133 | ||
4134 | shdrp = *shdrpp; | |
4135 | if ((shdrp->sh_type == SHT_REL || shdrp->sh_type == SHT_RELA) | |
4136 | && shdrp->sh_offset == -1) | |
4137 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, true); | |
4138 | } | |
4139 | ||
4140 | elf_tdata (abfd)->next_file_pos = off; | |
4141 | } | |
4142 | ||
4143 | boolean | |
4144 | _bfd_elf_write_object_contents (abfd) | |
4145 | bfd *abfd; | |
4146 | { | |
4147 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
4148 | Elf_Internal_Ehdr *i_ehdrp; | |
4149 | Elf_Internal_Shdr **i_shdrp; | |
4150 | boolean failed; | |
9ad5cbcf | 4151 | unsigned int count, num_sec; |
252b5132 RH |
4152 | |
4153 | if (! abfd->output_has_begun | |
4154 | && ! _bfd_elf_compute_section_file_positions | |
4155 | (abfd, (struct bfd_link_info *) NULL)) | |
4156 | return false; | |
4157 | ||
4158 | i_shdrp = elf_elfsections (abfd); | |
4159 | i_ehdrp = elf_elfheader (abfd); | |
4160 | ||
4161 | failed = false; | |
4162 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); | |
4163 | if (failed) | |
4164 | return false; | |
4165 | ||
4166 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |
4167 | ||
c044fabd | 4168 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
4169 | num_sec = elf_numsections (abfd); |
4170 | for (count = 1; count < num_sec; count++) | |
252b5132 RH |
4171 | { |
4172 | if (bed->elf_backend_section_processing) | |
4173 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |
4174 | if (i_shdrp[count]->contents) | |
4175 | { | |
dc810e39 AM |
4176 | bfd_size_type amt = i_shdrp[count]->sh_size; |
4177 | ||
252b5132 | 4178 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 4179 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
252b5132 RH |
4180 | return false; |
4181 | } | |
9ad5cbcf AM |
4182 | if (count == SHN_LORESERVE - 1) |
4183 | count += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 RH |
4184 | } |
4185 | ||
4186 | /* Write out the section header names. */ | |
4187 | if (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0 | |
2b0f7ef9 | 4188 | || ! _bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd))) |
252b5132 RH |
4189 | return false; |
4190 | ||
4191 | if (bed->elf_backend_final_write_processing) | |
4192 | (*bed->elf_backend_final_write_processing) (abfd, | |
4193 | elf_tdata (abfd)->linker); | |
4194 | ||
4195 | return bed->s->write_shdrs_and_ehdr (abfd); | |
4196 | } | |
4197 | ||
4198 | boolean | |
4199 | _bfd_elf_write_corefile_contents (abfd) | |
4200 | bfd *abfd; | |
4201 | { | |
c044fabd | 4202 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
4203 | return _bfd_elf_write_object_contents (abfd); |
4204 | } | |
c044fabd KH |
4205 | |
4206 | /* Given a section, search the header to find them. */ | |
4207 | ||
252b5132 RH |
4208 | int |
4209 | _bfd_elf_section_from_bfd_section (abfd, asect) | |
4210 | bfd *abfd; | |
4211 | struct sec *asect; | |
4212 | { | |
af746e92 | 4213 | struct elf_backend_data *bed; |
252b5132 | 4214 | int index; |
252b5132 | 4215 | |
9ad5cbcf AM |
4216 | if (elf_section_data (asect) != NULL |
4217 | && elf_section_data (asect)->this_idx != 0) | |
4218 | return elf_section_data (asect)->this_idx; | |
4219 | ||
4220 | if (bfd_is_abs_section (asect)) | |
af746e92 AM |
4221 | index = SHN_ABS; |
4222 | else if (bfd_is_com_section (asect)) | |
4223 | index = SHN_COMMON; | |
4224 | else if (bfd_is_und_section (asect)) | |
4225 | index = SHN_UNDEF; | |
4226 | else | |
252b5132 | 4227 | { |
af746e92 AM |
4228 | Elf_Internal_Shdr **i_shdrp = elf_elfsections (abfd); |
4229 | int maxindex = elf_numsections (abfd); | |
4230 | ||
4231 | for (index = 1; index < maxindex; index++) | |
4232 | { | |
4233 | Elf_Internal_Shdr *hdr = i_shdrp[index]; | |
4234 | ||
4235 | if (hdr != NULL && hdr->bfd_section == asect) | |
4236 | return index; | |
4237 | } | |
4238 | index = -1; | |
252b5132 RH |
4239 | } |
4240 | ||
af746e92 | 4241 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
4242 | if (bed->elf_backend_section_from_bfd_section) |
4243 | { | |
af746e92 | 4244 | int retval = index; |
9ad5cbcf | 4245 | |
af746e92 AM |
4246 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
4247 | return retval; | |
252b5132 RH |
4248 | } |
4249 | ||
af746e92 AM |
4250 | if (index == -1) |
4251 | bfd_set_error (bfd_error_nonrepresentable_section); | |
252b5132 | 4252 | |
af746e92 | 4253 | return index; |
252b5132 RH |
4254 | } |
4255 | ||
4256 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
4257 | on error. */ | |
4258 | ||
4259 | int | |
4260 | _bfd_elf_symbol_from_bfd_symbol (abfd, asym_ptr_ptr) | |
4261 | bfd *abfd; | |
4262 | asymbol **asym_ptr_ptr; | |
4263 | { | |
4264 | asymbol *asym_ptr = *asym_ptr_ptr; | |
4265 | int idx; | |
4266 | flagword flags = asym_ptr->flags; | |
4267 | ||
4268 | /* When gas creates relocations against local labels, it creates its | |
4269 | own symbol for the section, but does put the symbol into the | |
4270 | symbol chain, so udata is 0. When the linker is generating | |
4271 | relocatable output, this section symbol may be for one of the | |
4272 | input sections rather than the output section. */ | |
4273 | if (asym_ptr->udata.i == 0 | |
4274 | && (flags & BSF_SECTION_SYM) | |
4275 | && asym_ptr->section) | |
4276 | { | |
4277 | int indx; | |
4278 | ||
4279 | if (asym_ptr->section->output_section != NULL) | |
4280 | indx = asym_ptr->section->output_section->index; | |
4281 | else | |
4282 | indx = asym_ptr->section->index; | |
4e89ac30 L |
4283 | if (indx < elf_num_section_syms (abfd) |
4284 | && elf_section_syms (abfd)[indx] != NULL) | |
252b5132 RH |
4285 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
4286 | } | |
4287 | ||
4288 | idx = asym_ptr->udata.i; | |
4289 | ||
4290 | if (idx == 0) | |
4291 | { | |
4292 | /* This case can occur when using --strip-symbol on a symbol | |
4293 | which is used in a relocation entry. */ | |
4294 | (*_bfd_error_handler) | |
4295 | (_("%s: symbol `%s' required but not present"), | |
8f615d07 | 4296 | bfd_archive_filename (abfd), bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
4297 | bfd_set_error (bfd_error_no_symbols); |
4298 | return -1; | |
4299 | } | |
4300 | ||
4301 | #if DEBUG & 4 | |
4302 | { | |
4303 | fprintf (stderr, | |
661a3fd4 | 4304 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx%s\n", |
252b5132 RH |
4305 | (long) asym_ptr, asym_ptr->name, idx, flags, |
4306 | elf_symbol_flags (flags)); | |
4307 | fflush (stderr); | |
4308 | } | |
4309 | #endif | |
4310 | ||
4311 | return idx; | |
4312 | } | |
4313 | ||
4314 | /* Copy private BFD data. This copies any program header information. */ | |
4315 | ||
4316 | static boolean | |
4317 | copy_private_bfd_data (ibfd, obfd) | |
4318 | bfd *ibfd; | |
4319 | bfd *obfd; | |
4320 | { | |
bc67d8a6 NC |
4321 | Elf_Internal_Ehdr * iehdr; |
4322 | struct elf_segment_map * map; | |
4323 | struct elf_segment_map * map_first; | |
4324 | struct elf_segment_map ** pointer_to_map; | |
4325 | Elf_Internal_Phdr * segment; | |
4326 | asection * section; | |
4327 | unsigned int i; | |
4328 | unsigned int num_segments; | |
4329 | boolean phdr_included = false; | |
4330 | bfd_vma maxpagesize; | |
4331 | struct elf_segment_map * phdr_adjust_seg = NULL; | |
4332 | unsigned int phdr_adjust_num = 0; | |
caf47ea6 | 4333 | struct elf_backend_data * bed; |
bc67d8a6 | 4334 | |
c044fabd | 4335 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
252b5132 RH |
4336 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
4337 | return true; | |
4338 | ||
4339 | if (elf_tdata (ibfd)->phdr == NULL) | |
4340 | return true; | |
4341 | ||
caf47ea6 | 4342 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
4343 | iehdr = elf_elfheader (ibfd); |
4344 | ||
bc67d8a6 | 4345 | map_first = NULL; |
c044fabd | 4346 | pointer_to_map = &map_first; |
252b5132 RH |
4347 | |
4348 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
4349 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
4350 | ||
4351 | /* Returns the end address of the segment + 1. */ | |
4352 | #define SEGMENT_END(segment, start) \ | |
4353 | (start + (segment->p_memsz > segment->p_filesz \ | |
4354 | ? segment->p_memsz : segment->p_filesz)) | |
4355 | ||
4356 | /* Returns true if the given section is contained within | |
4357 | the given segment. VMA addresses are compared. */ | |
4358 | #define IS_CONTAINED_BY_VMA(section, segment) \ | |
4359 | (section->vma >= segment->p_vaddr \ | |
4360 | && (section->vma + section->_raw_size) \ | |
4361 | <= (SEGMENT_END (segment, segment->p_vaddr))) | |
c044fabd | 4362 | |
bc67d8a6 NC |
4363 | /* Returns true if the given section is contained within |
4364 | the given segment. LMA addresses are compared. */ | |
4365 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ | |
4366 | (section->lma >= base \ | |
4367 | && (section->lma + section->_raw_size) \ | |
4368 | <= SEGMENT_END (segment, base)) | |
252b5132 | 4369 | |
caf47ea6 AM |
4370 | /* Returns true if the given section is contained within the |
4371 | given segment. Filepos addresses are compared in an elf | |
4372 | backend function. */ | |
4373 | #define IS_CONTAINED_BY_FILEPOS(sec, seg, bed) \ | |
4374 | (bed->is_contained_by_filepos \ | |
4375 | && (*bed->is_contained_by_filepos) (sec, seg)) | |
4376 | ||
c044fabd | 4377 | /* Special case: corefile "NOTE" section containing regs, prpsinfo etc. */ |
bc67d8a6 NC |
4378 | #define IS_COREFILE_NOTE(p, s) \ |
4379 | (p->p_type == PT_NOTE \ | |
4380 | && bfd_get_format (ibfd) == bfd_core \ | |
4381 | && s->vma == 0 && s->lma == 0 \ | |
4382 | && (bfd_vma) s->filepos >= p->p_offset \ | |
4383 | && (bfd_vma) s->filepos + s->_raw_size \ | |
252b5132 RH |
4384 | <= p->p_offset + p->p_filesz) |
4385 | ||
4386 | /* The complicated case when p_vaddr is 0 is to handle the Solaris | |
4387 | linker, which generates a PT_INTERP section with p_vaddr and | |
4388 | p_memsz set to 0. */ | |
bc67d8a6 NC |
4389 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
4390 | ( p->p_vaddr == 0 \ | |
4391 | && p->p_filesz > 0 \ | |
4392 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
4393 | && s->_raw_size > 0 \ | |
4394 | && (bfd_vma) s->filepos >= p->p_offset \ | |
4395 | && ((bfd_vma) s->filepos + s->_raw_size \ | |
c0f7859b | 4396 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 4397 | |
bc67d8a6 NC |
4398 | /* Decide if the given section should be included in the given segment. |
4399 | A section will be included if: | |
f5ffc919 NC |
4400 | 1. It is within the address space of the segment -- we use the LMA |
4401 | if that is set for the segment and the VMA otherwise, | |
bc67d8a6 NC |
4402 | 2. It is an allocated segment, |
4403 | 3. There is an output section associated with it, | |
4404 | 4. The section has not already been allocated to a previous segment. */ | |
caf47ea6 | 4405 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ |
f5ffc919 NC |
4406 | (((((segment->p_paddr \ |
4407 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
4408 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
4409 | || IS_SOLARIS_PT_INTERP (segment, section)) \ | |
4410 | && (section->flags & SEC_ALLOC) != 0) \ | |
caf47ea6 AM |
4411 | || IS_COREFILE_NOTE (segment, section) \ |
4412 | || (IS_CONTAINED_BY_FILEPOS (section, segment, bed) \ | |
4413 | && (section->flags & SEC_ALLOC) == 0)) \ | |
f5ffc919 | 4414 | && section->output_section != NULL \ |
bc67d8a6 NC |
4415 | && section->segment_mark == false) |
4416 | ||
4417 | /* Returns true iff seg1 starts after the end of seg2. */ | |
4418 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2) \ | |
4419 | (seg1->p_vaddr >= SEGMENT_END (seg2, seg2->p_vaddr)) | |
4420 | ||
4421 | /* Returns true iff seg1 and seg2 overlap. */ | |
4422 | #define SEGMENT_OVERLAPS(seg1, seg2) \ | |
4423 | (!(SEGMENT_AFTER_SEGMENT (seg1, seg2) || SEGMENT_AFTER_SEGMENT (seg2, seg1))) | |
4424 | ||
4425 | /* Initialise the segment mark field. */ | |
4426 | for (section = ibfd->sections; section != NULL; section = section->next) | |
4427 | section->segment_mark = false; | |
4428 | ||
252b5132 | 4429 | /* Scan through the segments specified in the program header |
bc67d8a6 | 4430 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 4431 | in the loadable segments. These can be created by weird |
bc67d8a6 NC |
4432 | parameters to objcopy. */ |
4433 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
4434 | i < num_segments; | |
c044fabd | 4435 | i++, segment++) |
252b5132 | 4436 | { |
252b5132 | 4437 | unsigned int j; |
c044fabd | 4438 | Elf_Internal_Phdr *segment2; |
252b5132 | 4439 | |
bc67d8a6 NC |
4440 | if (segment->p_type != PT_LOAD) |
4441 | continue; | |
c044fabd | 4442 | |
bc67d8a6 | 4443 | /* Determine if this segment overlaps any previous segments. */ |
c044fabd | 4444 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2 ++) |
bc67d8a6 NC |
4445 | { |
4446 | bfd_signed_vma extra_length; | |
c044fabd | 4447 | |
bc67d8a6 NC |
4448 | if (segment2->p_type != PT_LOAD |
4449 | || ! SEGMENT_OVERLAPS (segment, segment2)) | |
4450 | continue; | |
c044fabd | 4451 | |
bc67d8a6 NC |
4452 | /* Merge the two segments together. */ |
4453 | if (segment2->p_vaddr < segment->p_vaddr) | |
4454 | { | |
c044fabd KH |
4455 | /* Extend SEGMENT2 to include SEGMENT and then delete |
4456 | SEGMENT. */ | |
bc67d8a6 NC |
4457 | extra_length = |
4458 | SEGMENT_END (segment, segment->p_vaddr) | |
4459 | - SEGMENT_END (segment2, segment2->p_vaddr); | |
c044fabd | 4460 | |
bc67d8a6 NC |
4461 | if (extra_length > 0) |
4462 | { | |
4463 | segment2->p_memsz += extra_length; | |
4464 | segment2->p_filesz += extra_length; | |
4465 | } | |
c044fabd | 4466 | |
bc67d8a6 | 4467 | segment->p_type = PT_NULL; |
c044fabd | 4468 | |
bc67d8a6 NC |
4469 | /* Since we have deleted P we must restart the outer loop. */ |
4470 | i = 0; | |
4471 | segment = elf_tdata (ibfd)->phdr; | |
4472 | break; | |
4473 | } | |
4474 | else | |
4475 | { | |
c044fabd KH |
4476 | /* Extend SEGMENT to include SEGMENT2 and then delete |
4477 | SEGMENT2. */ | |
bc67d8a6 NC |
4478 | extra_length = |
4479 | SEGMENT_END (segment2, segment2->p_vaddr) | |
4480 | - SEGMENT_END (segment, segment->p_vaddr); | |
c044fabd | 4481 | |
bc67d8a6 NC |
4482 | if (extra_length > 0) |
4483 | { | |
4484 | segment->p_memsz += extra_length; | |
4485 | segment->p_filesz += extra_length; | |
4486 | } | |
c044fabd | 4487 | |
bc67d8a6 NC |
4488 | segment2->p_type = PT_NULL; |
4489 | } | |
4490 | } | |
4491 | } | |
c044fabd | 4492 | |
bc67d8a6 NC |
4493 | /* The second scan attempts to assign sections to segments. */ |
4494 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
4495 | i < num_segments; | |
4496 | i ++, segment ++) | |
4497 | { | |
4498 | unsigned int section_count; | |
4499 | asection ** sections; | |
4500 | asection * output_section; | |
4501 | unsigned int isec; | |
4502 | bfd_vma matching_lma; | |
4503 | bfd_vma suggested_lma; | |
4504 | unsigned int j; | |
dc810e39 | 4505 | bfd_size_type amt; |
bc67d8a6 NC |
4506 | |
4507 | if (segment->p_type == PT_NULL) | |
4508 | continue; | |
c044fabd | 4509 | |
bc67d8a6 NC |
4510 | /* Compute how many sections might be placed into this segment. */ |
4511 | section_count = 0; | |
4512 | for (section = ibfd->sections; section != NULL; section = section->next) | |
caf47ea6 | 4513 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c044fabd | 4514 | ++section_count; |
252b5132 RH |
4515 | |
4516 | /* Allocate a segment map big enough to contain all of the | |
4517 | sections we have selected. */ | |
dc810e39 AM |
4518 | amt = sizeof (struct elf_segment_map); |
4519 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
4520 | map = (struct elf_segment_map *) bfd_alloc (obfd, amt); | |
bc67d8a6 | 4521 | if (map == NULL) |
252b5132 RH |
4522 | return false; |
4523 | ||
4524 | /* Initialise the fields of the segment map. Default to | |
4525 | using the physical address of the segment in the input BFD. */ | |
bc67d8a6 NC |
4526 | map->next = NULL; |
4527 | map->p_type = segment->p_type; | |
4528 | map->p_flags = segment->p_flags; | |
4529 | map->p_flags_valid = 1; | |
4530 | map->p_paddr = segment->p_paddr; | |
4531 | map->p_paddr_valid = 1; | |
252b5132 RH |
4532 | |
4533 | /* Determine if this segment contains the ELF file header | |
4534 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
4535 | map->includes_filehdr = (segment->p_offset == 0 |
4536 | && segment->p_filesz >= iehdr->e_ehsize); | |
252b5132 | 4537 | |
bc67d8a6 | 4538 | map->includes_phdrs = 0; |
252b5132 | 4539 | |
bc67d8a6 | 4540 | if (! phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 4541 | { |
bc67d8a6 NC |
4542 | map->includes_phdrs = |
4543 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
4544 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
4545 | >= ((bfd_vma) iehdr->e_phoff |
4546 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 4547 | |
bc67d8a6 | 4548 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
252b5132 RH |
4549 | phdr_included = true; |
4550 | } | |
4551 | ||
bc67d8a6 | 4552 | if (section_count == 0) |
252b5132 RH |
4553 | { |
4554 | /* Special segments, such as the PT_PHDR segment, may contain | |
4555 | no sections, but ordinary, loadable segments should contain | |
4556 | something. */ | |
bc67d8a6 | 4557 | if (segment->p_type == PT_LOAD) |
caf47ea6 AM |
4558 | (*_bfd_error_handler) |
4559 | (_("%s: warning: Empty loadable segment detected\n"), | |
4560 | bfd_archive_filename (ibfd)); | |
252b5132 | 4561 | |
bc67d8a6 | 4562 | map->count = 0; |
c044fabd KH |
4563 | *pointer_to_map = map; |
4564 | pointer_to_map = &map->next; | |
252b5132 RH |
4565 | |
4566 | continue; | |
4567 | } | |
4568 | ||
4569 | /* Now scan the sections in the input BFD again and attempt | |
4570 | to add their corresponding output sections to the segment map. | |
4571 | The problem here is how to handle an output section which has | |
4572 | been moved (ie had its LMA changed). There are four possibilities: | |
4573 | ||
4574 | 1. None of the sections have been moved. | |
4575 | In this case we can continue to use the segment LMA from the | |
4576 | input BFD. | |
4577 | ||
4578 | 2. All of the sections have been moved by the same amount. | |
4579 | In this case we can change the segment's LMA to match the LMA | |
4580 | of the first section. | |
4581 | ||
4582 | 3. Some of the sections have been moved, others have not. | |
4583 | In this case those sections which have not been moved can be | |
4584 | placed in the current segment which will have to have its size, | |
4585 | and possibly its LMA changed, and a new segment or segments will | |
4586 | have to be created to contain the other sections. | |
4587 | ||
4588 | 4. The sections have been moved, but not be the same amount. | |
4589 | In this case we can change the segment's LMA to match the LMA | |
4590 | of the first section and we will have to create a new segment | |
4591 | or segments to contain the other sections. | |
4592 | ||
4593 | In order to save time, we allocate an array to hold the section | |
4594 | pointers that we are interested in. As these sections get assigned | |
4595 | to a segment, they are removed from this array. */ | |
4596 | ||
dc810e39 AM |
4597 | amt = (bfd_size_type) section_count * sizeof (asection *); |
4598 | sections = (asection **) bfd_malloc (amt); | |
252b5132 RH |
4599 | if (sections == NULL) |
4600 | return false; | |
4601 | ||
4602 | /* Step One: Scan for segment vs section LMA conflicts. | |
4603 | Also add the sections to the section array allocated above. | |
4604 | Also add the sections to the current segment. In the common | |
4605 | case, where the sections have not been moved, this means that | |
4606 | we have completely filled the segment, and there is nothing | |
4607 | more to do. */ | |
252b5132 | 4608 | isec = 0; |
72730e0c | 4609 | matching_lma = 0; |
252b5132 RH |
4610 | suggested_lma = 0; |
4611 | ||
bc67d8a6 NC |
4612 | for (j = 0, section = ibfd->sections; |
4613 | section != NULL; | |
4614 | section = section->next) | |
252b5132 | 4615 | { |
caf47ea6 | 4616 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 4617 | { |
bc67d8a6 NC |
4618 | output_section = section->output_section; |
4619 | ||
4620 | sections[j ++] = section; | |
252b5132 RH |
4621 | |
4622 | /* The Solaris native linker always sets p_paddr to 0. | |
4623 | We try to catch that case here, and set it to the | |
4624 | correct value. */ | |
bc67d8a6 NC |
4625 | if (segment->p_paddr == 0 |
4626 | && segment->p_vaddr != 0 | |
252b5132 | 4627 | && isec == 0 |
bc67d8a6 NC |
4628 | && output_section->lma != 0 |
4629 | && (output_section->vma == (segment->p_vaddr | |
4630 | + (map->includes_filehdr | |
4631 | ? iehdr->e_ehsize | |
4632 | : 0) | |
4633 | + (map->includes_phdrs | |
079e9a2f AM |
4634 | ? (iehdr->e_phnum |
4635 | * iehdr->e_phentsize) | |
bc67d8a6 NC |
4636 | : 0)))) |
4637 | map->p_paddr = segment->p_vaddr; | |
252b5132 RH |
4638 | |
4639 | /* Match up the physical address of the segment with the | |
4640 | LMA address of the output section. */ | |
bc67d8a6 | 4641 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
caf47ea6 | 4642 | || IS_CONTAINED_BY_FILEPOS (section, segment, bed) |
bc67d8a6 | 4643 | || IS_COREFILE_NOTE (segment, section)) |
252b5132 RH |
4644 | { |
4645 | if (matching_lma == 0) | |
bc67d8a6 | 4646 | matching_lma = output_section->lma; |
252b5132 RH |
4647 | |
4648 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 4649 | then it does not overlap any other section within that |
252b5132 | 4650 | segment. */ |
bc67d8a6 | 4651 | map->sections[isec ++] = output_section; |
252b5132 RH |
4652 | } |
4653 | else if (suggested_lma == 0) | |
bc67d8a6 | 4654 | suggested_lma = output_section->lma; |
252b5132 RH |
4655 | } |
4656 | } | |
4657 | ||
bc67d8a6 | 4658 | BFD_ASSERT (j == section_count); |
252b5132 RH |
4659 | |
4660 | /* Step Two: Adjust the physical address of the current segment, | |
4661 | if necessary. */ | |
bc67d8a6 | 4662 | if (isec == section_count) |
252b5132 RH |
4663 | { |
4664 | /* All of the sections fitted within the segment as currently | |
4665 | specified. This is the default case. Add the segment to | |
4666 | the list of built segments and carry on to process the next | |
4667 | program header in the input BFD. */ | |
bc67d8a6 | 4668 | map->count = section_count; |
c044fabd KH |
4669 | *pointer_to_map = map; |
4670 | pointer_to_map = &map->next; | |
252b5132 RH |
4671 | |
4672 | free (sections); | |
4673 | continue; | |
4674 | } | |
252b5132 RH |
4675 | else |
4676 | { | |
72730e0c AM |
4677 | if (matching_lma != 0) |
4678 | { | |
4679 | /* At least one section fits inside the current segment. | |
4680 | Keep it, but modify its physical address to match the | |
4681 | LMA of the first section that fitted. */ | |
bc67d8a6 | 4682 | map->p_paddr = matching_lma; |
72730e0c AM |
4683 | } |
4684 | else | |
4685 | { | |
4686 | /* None of the sections fitted inside the current segment. | |
4687 | Change the current segment's physical address to match | |
4688 | the LMA of the first section. */ | |
bc67d8a6 | 4689 | map->p_paddr = suggested_lma; |
72730e0c AM |
4690 | } |
4691 | ||
bc67d8a6 NC |
4692 | /* Offset the segment physical address from the lma |
4693 | to allow for space taken up by elf headers. */ | |
4694 | if (map->includes_filehdr) | |
4695 | map->p_paddr -= iehdr->e_ehsize; | |
252b5132 | 4696 | |
bc67d8a6 NC |
4697 | if (map->includes_phdrs) |
4698 | { | |
4699 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |
4700 | ||
4701 | /* iehdr->e_phnum is just an estimate of the number | |
4702 | of program headers that we will need. Make a note | |
4703 | here of the number we used and the segment we chose | |
4704 | to hold these headers, so that we can adjust the | |
4705 | offset when we know the correct value. */ | |
4706 | phdr_adjust_num = iehdr->e_phnum; | |
4707 | phdr_adjust_seg = map; | |
4708 | } | |
252b5132 RH |
4709 | } |
4710 | ||
4711 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 4712 | those that fit to the current segment and removing them from the |
252b5132 RH |
4713 | sections array; but making sure not to leave large gaps. Once all |
4714 | possible sections have been assigned to the current segment it is | |
4715 | added to the list of built segments and if sections still remain | |
4716 | to be assigned, a new segment is constructed before repeating | |
4717 | the loop. */ | |
4718 | isec = 0; | |
4719 | do | |
4720 | { | |
bc67d8a6 | 4721 | map->count = 0; |
252b5132 RH |
4722 | suggested_lma = 0; |
4723 | ||
4724 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 4725 | for (j = 0; j < section_count; j++) |
252b5132 | 4726 | { |
bc67d8a6 | 4727 | section = sections[j]; |
252b5132 | 4728 | |
bc67d8a6 | 4729 | if (section == NULL) |
252b5132 RH |
4730 | continue; |
4731 | ||
bc67d8a6 | 4732 | output_section = section->output_section; |
252b5132 | 4733 | |
bc67d8a6 | 4734 | BFD_ASSERT (output_section != NULL); |
c044fabd | 4735 | |
bc67d8a6 NC |
4736 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
4737 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 4738 | { |
bc67d8a6 | 4739 | if (map->count == 0) |
252b5132 RH |
4740 | { |
4741 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
4742 | the beginning of the segment, then something is |
4743 | wrong. */ | |
4744 | if (output_section->lma != | |
4745 | (map->p_paddr | |
4746 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |
4747 | + (map->includes_phdrs | |
4748 | ? iehdr->e_phnum * iehdr->e_phentsize | |
4749 | : 0))) | |
252b5132 RH |
4750 | abort (); |
4751 | } | |
4752 | else | |
4753 | { | |
4754 | asection * prev_sec; | |
252b5132 | 4755 | |
bc67d8a6 | 4756 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
4757 | |
4758 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
4759 | and the start of this section is more than |
4760 | maxpagesize then we need to start a new segment. */ | |
079e9a2f AM |
4761 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->_raw_size, |
4762 | maxpagesize) | |
caf47ea6 | 4763 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
079e9a2f AM |
4764 | || ((prev_sec->lma + prev_sec->_raw_size) |
4765 | > output_section->lma)) | |
252b5132 RH |
4766 | { |
4767 | if (suggested_lma == 0) | |
bc67d8a6 | 4768 | suggested_lma = output_section->lma; |
252b5132 RH |
4769 | |
4770 | continue; | |
4771 | } | |
4772 | } | |
4773 | ||
bc67d8a6 | 4774 | map->sections[map->count++] = output_section; |
252b5132 RH |
4775 | ++isec; |
4776 | sections[j] = NULL; | |
bc67d8a6 | 4777 | section->segment_mark = true; |
252b5132 RH |
4778 | } |
4779 | else if (suggested_lma == 0) | |
bc67d8a6 | 4780 | suggested_lma = output_section->lma; |
252b5132 RH |
4781 | } |
4782 | ||
bc67d8a6 | 4783 | BFD_ASSERT (map->count > 0); |
252b5132 RH |
4784 | |
4785 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
4786 | *pointer_to_map = map; |
4787 | pointer_to_map = &map->next; | |
252b5132 | 4788 | |
bc67d8a6 | 4789 | if (isec < section_count) |
252b5132 RH |
4790 | { |
4791 | /* We still have not allocated all of the sections to | |
4792 | segments. Create a new segment here, initialise it | |
4793 | and carry on looping. */ | |
dc810e39 AM |
4794 | amt = sizeof (struct elf_segment_map); |
4795 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |
4796 | map = (struct elf_segment_map *) bfd_alloc (obfd, amt); | |
bc67d8a6 | 4797 | if (map == NULL) |
252b5132 RH |
4798 | return false; |
4799 | ||
4800 | /* Initialise the fields of the segment map. Set the physical | |
4801 | physical address to the LMA of the first section that has | |
4802 | not yet been assigned. */ | |
bc67d8a6 NC |
4803 | map->next = NULL; |
4804 | map->p_type = segment->p_type; | |
4805 | map->p_flags = segment->p_flags; | |
4806 | map->p_flags_valid = 1; | |
4807 | map->p_paddr = suggested_lma; | |
4808 | map->p_paddr_valid = 1; | |
4809 | map->includes_filehdr = 0; | |
4810 | map->includes_phdrs = 0; | |
252b5132 RH |
4811 | } |
4812 | } | |
bc67d8a6 | 4813 | while (isec < section_count); |
252b5132 RH |
4814 | |
4815 | free (sections); | |
4816 | } | |
4817 | ||
4818 | /* The Solaris linker creates program headers in which all the | |
4819 | p_paddr fields are zero. When we try to objcopy or strip such a | |
4820 | file, we get confused. Check for this case, and if we find it | |
4821 | reset the p_paddr_valid fields. */ | |
bc67d8a6 NC |
4822 | for (map = map_first; map != NULL; map = map->next) |
4823 | if (map->p_paddr != 0) | |
252b5132 | 4824 | break; |
bc67d8a6 | 4825 | if (map == NULL) |
252b5132 | 4826 | { |
bc67d8a6 NC |
4827 | for (map = map_first; map != NULL; map = map->next) |
4828 | map->p_paddr_valid = 0; | |
252b5132 RH |
4829 | } |
4830 | ||
bc67d8a6 NC |
4831 | elf_tdata (obfd)->segment_map = map_first; |
4832 | ||
4833 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 4834 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
4835 | the offset if necessary. */ |
4836 | if (phdr_adjust_seg != NULL) | |
4837 | { | |
4838 | unsigned int count; | |
c044fabd | 4839 | |
bc67d8a6 | 4840 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 4841 | count++; |
252b5132 | 4842 | |
bc67d8a6 NC |
4843 | if (count > phdr_adjust_num) |
4844 | phdr_adjust_seg->p_paddr | |
4845 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
4846 | } | |
c044fabd | 4847 | |
252b5132 | 4848 | #if 0 |
c044fabd KH |
4849 | /* Final Step: Sort the segments into ascending order of physical |
4850 | address. */ | |
bc67d8a6 | 4851 | if (map_first != NULL) |
252b5132 | 4852 | { |
c044fabd | 4853 | struct elf_segment_map *prev; |
252b5132 | 4854 | |
bc67d8a6 NC |
4855 | prev = map_first; |
4856 | for (map = map_first->next; map != NULL; prev = map, map = map->next) | |
252b5132 | 4857 | { |
bc67d8a6 NC |
4858 | /* Yes I know - its a bubble sort.... */ |
4859 | if (map->next != NULL && (map->next->p_paddr < map->p_paddr)) | |
252b5132 | 4860 | { |
bc67d8a6 NC |
4861 | /* Swap map and map->next. */ |
4862 | prev->next = map->next; | |
4863 | map->next = map->next->next; | |
4864 | prev->next->next = map; | |
252b5132 | 4865 | |
bc67d8a6 NC |
4866 | /* Restart loop. */ |
4867 | map = map_first; | |
252b5132 RH |
4868 | } |
4869 | } | |
4870 | } | |
4871 | #endif | |
4872 | ||
bc67d8a6 NC |
4873 | #undef SEGMENT_END |
4874 | #undef IS_CONTAINED_BY_VMA | |
4875 | #undef IS_CONTAINED_BY_LMA | |
caf47ea6 | 4876 | #undef IS_CONTAINED_BY_FILEPOS |
252b5132 | 4877 | #undef IS_COREFILE_NOTE |
bc67d8a6 NC |
4878 | #undef IS_SOLARIS_PT_INTERP |
4879 | #undef INCLUDE_SECTION_IN_SEGMENT | |
4880 | #undef SEGMENT_AFTER_SEGMENT | |
4881 | #undef SEGMENT_OVERLAPS | |
252b5132 RH |
4882 | return true; |
4883 | } | |
4884 | ||
4885 | /* Copy private section information. This copies over the entsize | |
4886 | field, and sometimes the info field. */ | |
4887 | ||
4888 | boolean | |
4889 | _bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec) | |
4890 | bfd *ibfd; | |
4891 | asection *isec; | |
4892 | bfd *obfd; | |
4893 | asection *osec; | |
4894 | { | |
4895 | Elf_Internal_Shdr *ihdr, *ohdr; | |
caf47ea6 | 4896 | const struct elf_backend_data *bed = get_elf_backend_data (ibfd); |
252b5132 RH |
4897 | |
4898 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
4899 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
4900 | return true; | |
4901 | ||
4902 | /* Copy over private BFD data if it has not already been copied. | |
4903 | This must be done here, rather than in the copy_private_bfd_data | |
4904 | entry point, because the latter is called after the section | |
4905 | contents have been set, which means that the program headers have | |
caf47ea6 AM |
4906 | already been worked out. The backend function provides a way to |
4907 | override the test conditions and code path for the call to | |
4908 | copy_private_bfd_data. */ | |
4909 | if (bed->copy_private_bfd_data_p) | |
252b5132 | 4910 | { |
caf47ea6 AM |
4911 | if ((*bed->copy_private_bfd_data_p) (ibfd, isec, obfd, osec)) |
4912 | if (! copy_private_bfd_data (ibfd, obfd)) | |
4913 | return false; | |
4914 | } | |
4915 | else if (elf_tdata (obfd)->segment_map == NULL && elf_tdata (ibfd)->phdr != NULL) | |
4916 | { | |
4917 | asection *s; | |
4918 | ||
4919 | /* Only set up the segments if there are no more SEC_ALLOC | |
4920 | sections. FIXME: This won't do the right thing if objcopy is | |
4921 | used to remove the last SEC_ALLOC section, since objcopy | |
4922 | won't call this routine in that case. */ | |
4923 | for (s = isec->next; s != NULL; s = s->next) | |
4924 | if ((s->flags & SEC_ALLOC) != 0) | |
4925 | break; | |
4926 | if (s == NULL) | |
4927 | { | |
4928 | if (! copy_private_bfd_data (ibfd, obfd)) | |
4929 | return false; | |
4930 | } | |
252b5132 RH |
4931 | } |
4932 | ||
4933 | ihdr = &elf_section_data (isec)->this_hdr; | |
4934 | ohdr = &elf_section_data (osec)->this_hdr; | |
4935 | ||
4936 | ohdr->sh_entsize = ihdr->sh_entsize; | |
4937 | ||
4938 | if (ihdr->sh_type == SHT_SYMTAB | |
4939 | || ihdr->sh_type == SHT_DYNSYM | |
4940 | || ihdr->sh_type == SHT_GNU_verneed | |
4941 | || ihdr->sh_type == SHT_GNU_verdef) | |
4942 | ohdr->sh_info = ihdr->sh_info; | |
4943 | ||
bf572ba0 MM |
4944 | elf_section_data (osec)->use_rela_p |
4945 | = elf_section_data (isec)->use_rela_p; | |
4946 | ||
252b5132 RH |
4947 | return true; |
4948 | } | |
4949 | ||
4950 | /* Copy private symbol information. If this symbol is in a section | |
4951 | which we did not map into a BFD section, try to map the section | |
4952 | index correctly. We use special macro definitions for the mapped | |
4953 | section indices; these definitions are interpreted by the | |
4954 | swap_out_syms function. */ | |
4955 | ||
9ad5cbcf AM |
4956 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
4957 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
4958 | #define MAP_STRTAB (SHN_HIOS + 3) | |
4959 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
4960 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 RH |
4961 | |
4962 | boolean | |
4963 | _bfd_elf_copy_private_symbol_data (ibfd, isymarg, obfd, osymarg) | |
4964 | bfd *ibfd; | |
4965 | asymbol *isymarg; | |
4966 | bfd *obfd; | |
4967 | asymbol *osymarg; | |
4968 | { | |
4969 | elf_symbol_type *isym, *osym; | |
4970 | ||
4971 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
4972 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
4973 | return true; | |
4974 | ||
4975 | isym = elf_symbol_from (ibfd, isymarg); | |
4976 | osym = elf_symbol_from (obfd, osymarg); | |
4977 | ||
4978 | if (isym != NULL | |
4979 | && osym != NULL | |
4980 | && bfd_is_abs_section (isym->symbol.section)) | |
4981 | { | |
4982 | unsigned int shndx; | |
4983 | ||
4984 | shndx = isym->internal_elf_sym.st_shndx; | |
4985 | if (shndx == elf_onesymtab (ibfd)) | |
4986 | shndx = MAP_ONESYMTAB; | |
4987 | else if (shndx == elf_dynsymtab (ibfd)) | |
4988 | shndx = MAP_DYNSYMTAB; | |
4989 | else if (shndx == elf_tdata (ibfd)->strtab_section) | |
4990 | shndx = MAP_STRTAB; | |
4991 | else if (shndx == elf_tdata (ibfd)->shstrtab_section) | |
4992 | shndx = MAP_SHSTRTAB; | |
9ad5cbcf AM |
4993 | else if (shndx == elf_tdata (ibfd)->symtab_shndx_section) |
4994 | shndx = MAP_SYM_SHNDX; | |
252b5132 RH |
4995 | osym->internal_elf_sym.st_shndx = shndx; |
4996 | } | |
4997 | ||
4998 | return true; | |
4999 | } | |
5000 | ||
5001 | /* Swap out the symbols. */ | |
5002 | ||
5003 | static boolean | |
5004 | swap_out_syms (abfd, sttp, relocatable_p) | |
5005 | bfd *abfd; | |
5006 | struct bfd_strtab_hash **sttp; | |
5007 | int relocatable_p; | |
5008 | { | |
079e9a2f AM |
5009 | struct elf_backend_data *bed; |
5010 | int symcount; | |
5011 | asymbol **syms; | |
5012 | struct bfd_strtab_hash *stt; | |
5013 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 5014 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f AM |
5015 | Elf_Internal_Shdr *symstrtab_hdr; |
5016 | char *outbound_syms; | |
9ad5cbcf | 5017 | char *outbound_shndx; |
079e9a2f AM |
5018 | int idx; |
5019 | bfd_size_type amt; | |
252b5132 RH |
5020 | |
5021 | if (!elf_map_symbols (abfd)) | |
5022 | return false; | |
5023 | ||
c044fabd | 5024 | /* Dump out the symtabs. */ |
079e9a2f AM |
5025 | stt = _bfd_elf_stringtab_init (); |
5026 | if (stt == NULL) | |
5027 | return false; | |
252b5132 | 5028 | |
079e9a2f AM |
5029 | bed = get_elf_backend_data (abfd); |
5030 | symcount = bfd_get_symcount (abfd); | |
5031 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
5032 | symtab_hdr->sh_type = SHT_SYMTAB; | |
5033 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
5034 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
5035 | symtab_hdr->sh_info = elf_num_locals (abfd) + 1; | |
5036 | symtab_hdr->sh_addralign = bed->s->file_align; | |
5037 | ||
5038 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
5039 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
5040 | ||
5041 | amt = (bfd_size_type) (1 + symcount) * bed->s->sizeof_sym; | |
5042 | outbound_syms = bfd_alloc (abfd, amt); | |
5043 | if (outbound_syms == NULL) | |
5044 | return false; | |
5045 | symtab_hdr->contents = (PTR) outbound_syms; | |
252b5132 | 5046 | |
9ad5cbcf AM |
5047 | outbound_shndx = NULL; |
5048 | symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
5049 | if (symtab_shndx_hdr->sh_name != 0) | |
5050 | { | |
5051 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
5052 | outbound_shndx = bfd_alloc (abfd, amt); | |
5053 | if (outbound_shndx == NULL) | |
5054 | return false; | |
5055 | memset (outbound_shndx, 0, (unsigned long) amt); | |
5056 | symtab_shndx_hdr->contents = outbound_shndx; | |
5057 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
5058 | symtab_shndx_hdr->sh_size = amt; | |
5059 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
5060 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
5061 | } | |
5062 | ||
079e9a2f AM |
5063 | /* now generate the data (for "contents") */ |
5064 | { | |
5065 | /* Fill in zeroth symbol and swap it out. */ | |
5066 | Elf_Internal_Sym sym; | |
5067 | sym.st_name = 0; | |
5068 | sym.st_value = 0; | |
5069 | sym.st_size = 0; | |
5070 | sym.st_info = 0; | |
5071 | sym.st_other = 0; | |
5072 | sym.st_shndx = SHN_UNDEF; | |
9ad5cbcf | 5073 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 5074 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
5075 | if (outbound_shndx != NULL) |
5076 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 5077 | } |
252b5132 | 5078 | |
079e9a2f AM |
5079 | syms = bfd_get_outsymbols (abfd); |
5080 | for (idx = 0; idx < symcount; idx++) | |
252b5132 | 5081 | { |
252b5132 | 5082 | Elf_Internal_Sym sym; |
079e9a2f AM |
5083 | bfd_vma value = syms[idx]->value; |
5084 | elf_symbol_type *type_ptr; | |
5085 | flagword flags = syms[idx]->flags; | |
5086 | int type; | |
252b5132 | 5087 | |
079e9a2f AM |
5088 | if ((flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) |
5089 | { | |
5090 | /* Local section symbols have no name. */ | |
5091 | sym.st_name = 0; | |
5092 | } | |
5093 | else | |
5094 | { | |
5095 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |
5096 | syms[idx]->name, | |
5097 | true, false); | |
5098 | if (sym.st_name == (unsigned long) -1) | |
5099 | return false; | |
5100 | } | |
252b5132 | 5101 | |
079e9a2f | 5102 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 5103 | |
079e9a2f AM |
5104 | if ((flags & BSF_SECTION_SYM) == 0 |
5105 | && bfd_is_com_section (syms[idx]->section)) | |
5106 | { | |
5107 | /* ELF common symbols put the alignment into the `value' field, | |
5108 | and the size into the `size' field. This is backwards from | |
5109 | how BFD handles it, so reverse it here. */ | |
5110 | sym.st_size = value; | |
5111 | if (type_ptr == NULL | |
5112 | || type_ptr->internal_elf_sym.st_value == 0) | |
5113 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
5114 | else | |
5115 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
5116 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
5117 | (abfd, syms[idx]->section); | |
5118 | } | |
5119 | else | |
5120 | { | |
5121 | asection *sec = syms[idx]->section; | |
5122 | int shndx; | |
252b5132 | 5123 | |
079e9a2f AM |
5124 | if (sec->output_section) |
5125 | { | |
5126 | value += sec->output_offset; | |
5127 | sec = sec->output_section; | |
5128 | } | |
5129 | /* Don't add in the section vma for relocatable output. */ | |
5130 | if (! relocatable_p) | |
5131 | value += sec->vma; | |
5132 | sym.st_value = value; | |
5133 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
5134 | ||
5135 | if (bfd_is_abs_section (sec) | |
5136 | && type_ptr != NULL | |
5137 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
5138 | { | |
5139 | /* This symbol is in a real ELF section which we did | |
5140 | not create as a BFD section. Undo the mapping done | |
5141 | by copy_private_symbol_data. */ | |
5142 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
5143 | switch (shndx) | |
5144 | { | |
5145 | case MAP_ONESYMTAB: | |
5146 | shndx = elf_onesymtab (abfd); | |
5147 | break; | |
5148 | case MAP_DYNSYMTAB: | |
5149 | shndx = elf_dynsymtab (abfd); | |
5150 | break; | |
5151 | case MAP_STRTAB: | |
5152 | shndx = elf_tdata (abfd)->strtab_section; | |
5153 | break; | |
5154 | case MAP_SHSTRTAB: | |
5155 | shndx = elf_tdata (abfd)->shstrtab_section; | |
5156 | break; | |
9ad5cbcf AM |
5157 | case MAP_SYM_SHNDX: |
5158 | shndx = elf_tdata (abfd)->symtab_shndx_section; | |
5159 | break; | |
079e9a2f AM |
5160 | default: |
5161 | break; | |
5162 | } | |
5163 | } | |
5164 | else | |
5165 | { | |
5166 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 5167 | |
079e9a2f AM |
5168 | if (shndx == -1) |
5169 | { | |
5170 | asection *sec2; | |
5171 | ||
5172 | /* Writing this would be a hell of a lot easier if | |
5173 | we had some decent documentation on bfd, and | |
5174 | knew what to expect of the library, and what to | |
5175 | demand of applications. For example, it | |
5176 | appears that `objcopy' might not set the | |
5177 | section of a symbol to be a section that is | |
5178 | actually in the output file. */ | |
5179 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5180 | BFD_ASSERT (sec2 != 0); | |
5181 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
5182 | BFD_ASSERT (shndx != -1); | |
5183 | } | |
5184 | } | |
252b5132 | 5185 | |
079e9a2f AM |
5186 | sym.st_shndx = shndx; |
5187 | } | |
252b5132 | 5188 | |
13ae64f3 JJ |
5189 | if ((flags & BSF_THREAD_LOCAL) != 0) |
5190 | type = STT_TLS; | |
5191 | else if ((flags & BSF_FUNCTION) != 0) | |
079e9a2f AM |
5192 | type = STT_FUNC; |
5193 | else if ((flags & BSF_OBJECT) != 0) | |
5194 | type = STT_OBJECT; | |
5195 | else | |
5196 | type = STT_NOTYPE; | |
252b5132 | 5197 | |
13ae64f3 JJ |
5198 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
5199 | type = STT_TLS; | |
5200 | ||
079e9a2f AM |
5201 | /* Processor-specific types */ |
5202 | if (type_ptr != NULL | |
5203 | && bed->elf_backend_get_symbol_type) | |
5204 | type = ((*bed->elf_backend_get_symbol_type) | |
5205 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 5206 | |
079e9a2f AM |
5207 | if (flags & BSF_SECTION_SYM) |
5208 | { | |
5209 | if (flags & BSF_GLOBAL) | |
5210 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
5211 | else | |
5212 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
5213 | } | |
5214 | else if (bfd_is_com_section (syms[idx]->section)) | |
5215 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
5216 | else if (bfd_is_und_section (syms[idx]->section)) | |
5217 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
5218 | ? STB_WEAK | |
5219 | : STB_GLOBAL), | |
5220 | type); | |
5221 | else if (flags & BSF_FILE) | |
5222 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
5223 | else | |
5224 | { | |
5225 | int bind = STB_LOCAL; | |
252b5132 | 5226 | |
079e9a2f AM |
5227 | if (flags & BSF_LOCAL) |
5228 | bind = STB_LOCAL; | |
5229 | else if (flags & BSF_WEAK) | |
5230 | bind = STB_WEAK; | |
5231 | else if (flags & BSF_GLOBAL) | |
5232 | bind = STB_GLOBAL; | |
252b5132 | 5233 | |
079e9a2f AM |
5234 | sym.st_info = ELF_ST_INFO (bind, type); |
5235 | } | |
252b5132 | 5236 | |
079e9a2f AM |
5237 | if (type_ptr != NULL) |
5238 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
5239 | else | |
5240 | sym.st_other = 0; | |
252b5132 | 5241 | |
9ad5cbcf | 5242 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); |
079e9a2f | 5243 | outbound_syms += bed->s->sizeof_sym; |
9ad5cbcf AM |
5244 | if (outbound_shndx != NULL) |
5245 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |
079e9a2f | 5246 | } |
252b5132 | 5247 | |
079e9a2f AM |
5248 | *sttp = stt; |
5249 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |
5250 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
252b5132 | 5251 | |
079e9a2f AM |
5252 | symstrtab_hdr->sh_flags = 0; |
5253 | symstrtab_hdr->sh_addr = 0; | |
5254 | symstrtab_hdr->sh_entsize = 0; | |
5255 | symstrtab_hdr->sh_link = 0; | |
5256 | symstrtab_hdr->sh_info = 0; | |
5257 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 RH |
5258 | |
5259 | return true; | |
5260 | } | |
5261 | ||
5262 | /* Return the number of bytes required to hold the symtab vector. | |
5263 | ||
5264 | Note that we base it on the count plus 1, since we will null terminate | |
5265 | the vector allocated based on this size. However, the ELF symbol table | |
5266 | always has a dummy entry as symbol #0, so it ends up even. */ | |
5267 | ||
5268 | long | |
5269 | _bfd_elf_get_symtab_upper_bound (abfd) | |
5270 | bfd *abfd; | |
5271 | { | |
5272 | long symcount; | |
5273 | long symtab_size; | |
5274 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
5275 | ||
5276 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
5277 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
5278 | if (symcount > 0) | |
5279 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
5280 | |
5281 | return symtab_size; | |
5282 | } | |
5283 | ||
5284 | long | |
5285 | _bfd_elf_get_dynamic_symtab_upper_bound (abfd) | |
5286 | bfd *abfd; | |
5287 | { | |
5288 | long symcount; | |
5289 | long symtab_size; | |
5290 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
5291 | ||
5292 | if (elf_dynsymtab (abfd) == 0) | |
5293 | { | |
5294 | bfd_set_error (bfd_error_invalid_operation); | |
5295 | return -1; | |
5296 | } | |
5297 | ||
5298 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b99d1833 AM |
5299 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
5300 | if (symcount > 0) | |
5301 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
5302 | |
5303 | return symtab_size; | |
5304 | } | |
5305 | ||
5306 | long | |
5307 | _bfd_elf_get_reloc_upper_bound (abfd, asect) | |
7442e600 | 5308 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
5309 | sec_ptr asect; |
5310 | { | |
5311 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
5312 | } | |
5313 | ||
5314 | /* Canonicalize the relocs. */ | |
5315 | ||
5316 | long | |
5317 | _bfd_elf_canonicalize_reloc (abfd, section, relptr, symbols) | |
5318 | bfd *abfd; | |
5319 | sec_ptr section; | |
5320 | arelent **relptr; | |
5321 | asymbol **symbols; | |
5322 | { | |
5323 | arelent *tblptr; | |
5324 | unsigned int i; | |
dbb410c3 | 5325 | struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 5326 | |
dbb410c3 | 5327 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, false)) |
252b5132 RH |
5328 | return -1; |
5329 | ||
5330 | tblptr = section->relocation; | |
5331 | for (i = 0; i < section->reloc_count; i++) | |
5332 | *relptr++ = tblptr++; | |
5333 | ||
5334 | *relptr = NULL; | |
5335 | ||
5336 | return section->reloc_count; | |
5337 | } | |
5338 | ||
5339 | long | |
5340 | _bfd_elf_get_symtab (abfd, alocation) | |
5341 | bfd *abfd; | |
5342 | asymbol **alocation; | |
5343 | { | |
dbb410c3 AM |
5344 | struct elf_backend_data *bed = get_elf_backend_data (abfd); |
5345 | long symcount = bed->s->slurp_symbol_table (abfd, alocation, false); | |
252b5132 RH |
5346 | |
5347 | if (symcount >= 0) | |
5348 | bfd_get_symcount (abfd) = symcount; | |
5349 | return symcount; | |
5350 | } | |
5351 | ||
5352 | long | |
5353 | _bfd_elf_canonicalize_dynamic_symtab (abfd, alocation) | |
5354 | bfd *abfd; | |
5355 | asymbol **alocation; | |
5356 | { | |
dbb410c3 AM |
5357 | struct elf_backend_data *bed = get_elf_backend_data (abfd); |
5358 | return bed->s->slurp_symbol_table (abfd, alocation, true); | |
252b5132 RH |
5359 | } |
5360 | ||
5361 | /* Return the size required for the dynamic reloc entries. Any | |
5362 | section that was actually installed in the BFD, and has type | |
5363 | SHT_REL or SHT_RELA, and uses the dynamic symbol table, is | |
5364 | considered to be a dynamic reloc section. */ | |
5365 | ||
5366 | long | |
5367 | _bfd_elf_get_dynamic_reloc_upper_bound (abfd) | |
5368 | bfd *abfd; | |
5369 | { | |
5370 | long ret; | |
5371 | asection *s; | |
5372 | ||
5373 | if (elf_dynsymtab (abfd) == 0) | |
5374 | { | |
5375 | bfd_set_error (bfd_error_invalid_operation); | |
5376 | return -1; | |
5377 | } | |
5378 | ||
5379 | ret = sizeof (arelent *); | |
5380 | for (s = abfd->sections; s != NULL; s = s->next) | |
5381 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
5382 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL | |
5383 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
5384 | ret += ((s->_raw_size / elf_section_data (s)->this_hdr.sh_entsize) | |
5385 | * sizeof (arelent *)); | |
5386 | ||
5387 | return ret; | |
5388 | } | |
5389 | ||
5390 | /* Canonicalize the dynamic relocation entries. Note that we return | |
5391 | the dynamic relocations as a single block, although they are | |
5392 | actually associated with particular sections; the interface, which | |
5393 | was designed for SunOS style shared libraries, expects that there | |
5394 | is only one set of dynamic relocs. Any section that was actually | |
5395 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses | |
5396 | the dynamic symbol table, is considered to be a dynamic reloc | |
5397 | section. */ | |
5398 | ||
5399 | long | |
5400 | _bfd_elf_canonicalize_dynamic_reloc (abfd, storage, syms) | |
5401 | bfd *abfd; | |
5402 | arelent **storage; | |
5403 | asymbol **syms; | |
5404 | { | |
5405 | boolean (*slurp_relocs) PARAMS ((bfd *, asection *, asymbol **, boolean)); | |
5406 | asection *s; | |
5407 | long ret; | |
5408 | ||
5409 | if (elf_dynsymtab (abfd) == 0) | |
5410 | { | |
5411 | bfd_set_error (bfd_error_invalid_operation); | |
5412 | return -1; | |
5413 | } | |
5414 | ||
5415 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
5416 | ret = 0; | |
5417 | for (s = abfd->sections; s != NULL; s = s->next) | |
5418 | { | |
5419 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
5420 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL | |
5421 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
5422 | { | |
5423 | arelent *p; | |
5424 | long count, i; | |
5425 | ||
5426 | if (! (*slurp_relocs) (abfd, s, syms, true)) | |
5427 | return -1; | |
5428 | count = s->_raw_size / elf_section_data (s)->this_hdr.sh_entsize; | |
5429 | p = s->relocation; | |
5430 | for (i = 0; i < count; i++) | |
5431 | *storage++ = p++; | |
5432 | ret += count; | |
5433 | } | |
5434 | } | |
5435 | ||
5436 | *storage = NULL; | |
5437 | ||
5438 | return ret; | |
5439 | } | |
5440 | \f | |
5441 | /* Read in the version information. */ | |
5442 | ||
5443 | boolean | |
5444 | _bfd_elf_slurp_version_tables (abfd) | |
5445 | bfd *abfd; | |
5446 | { | |
5447 | bfd_byte *contents = NULL; | |
dc810e39 | 5448 | bfd_size_type amt; |
252b5132 RH |
5449 | |
5450 | if (elf_dynverdef (abfd) != 0) | |
5451 | { | |
5452 | Elf_Internal_Shdr *hdr; | |
5453 | Elf_External_Verdef *everdef; | |
5454 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
5455 | Elf_Internal_Verdef *iverdefarr; |
5456 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 5457 | unsigned int i; |
062e2358 | 5458 | unsigned int maxidx; |
252b5132 RH |
5459 | |
5460 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
5461 | ||
252b5132 RH |
5462 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
5463 | if (contents == NULL) | |
5464 | goto error_return; | |
5465 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 5466 | || bfd_bread ((PTR) contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
5467 | goto error_return; |
5468 | ||
f631889e UD |
5469 | /* We know the number of entries in the section but not the maximum |
5470 | index. Therefore we have to run through all entries and find | |
5471 | the maximum. */ | |
252b5132 | 5472 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
5473 | maxidx = 0; |
5474 | for (i = 0; i < hdr->sh_info; ++i) | |
5475 | { | |
5476 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
5477 | ||
062e2358 AM |
5478 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
5479 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e UD |
5480 | |
5481 | everdef = ((Elf_External_Verdef *) | |
5482 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
5483 | } | |
5484 | ||
dc810e39 AM |
5485 | amt = (bfd_size_type) maxidx * sizeof (Elf_Internal_Verdef); |
5486 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e UD |
5487 | if (elf_tdata (abfd)->verdef == NULL) |
5488 | goto error_return; | |
5489 | ||
5490 | elf_tdata (abfd)->cverdefs = maxidx; | |
5491 | ||
5492 | everdef = (Elf_External_Verdef *) contents; | |
5493 | iverdefarr = elf_tdata (abfd)->verdef; | |
5494 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
5495 | { |
5496 | Elf_External_Verdaux *everdaux; | |
5497 | Elf_Internal_Verdaux *iverdaux; | |
5498 | unsigned int j; | |
5499 | ||
f631889e UD |
5500 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
5501 | ||
5502 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; | |
5503 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |
252b5132 RH |
5504 | |
5505 | iverdef->vd_bfd = abfd; | |
5506 | ||
dc810e39 AM |
5507 | amt = (bfd_size_type) iverdef->vd_cnt * sizeof (Elf_Internal_Verdaux); |
5508 | iverdef->vd_auxptr = (Elf_Internal_Verdaux *) bfd_alloc (abfd, amt); | |
252b5132 RH |
5509 | if (iverdef->vd_auxptr == NULL) |
5510 | goto error_return; | |
5511 | ||
5512 | everdaux = ((Elf_External_Verdaux *) | |
5513 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
5514 | iverdaux = iverdef->vd_auxptr; | |
5515 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
5516 | { | |
5517 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
5518 | ||
5519 | iverdaux->vda_nodename = | |
5520 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
5521 | iverdaux->vda_name); | |
5522 | if (iverdaux->vda_nodename == NULL) | |
5523 | goto error_return; | |
5524 | ||
5525 | if (j + 1 < iverdef->vd_cnt) | |
5526 | iverdaux->vda_nextptr = iverdaux + 1; | |
5527 | else | |
5528 | iverdaux->vda_nextptr = NULL; | |
5529 | ||
5530 | everdaux = ((Elf_External_Verdaux *) | |
5531 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
5532 | } | |
5533 | ||
5534 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
5535 | ||
5536 | if (i + 1 < hdr->sh_info) | |
5537 | iverdef->vd_nextdef = iverdef + 1; | |
5538 | else | |
5539 | iverdef->vd_nextdef = NULL; | |
5540 | ||
5541 | everdef = ((Elf_External_Verdef *) | |
5542 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
5543 | } | |
5544 | ||
5545 | free (contents); | |
5546 | contents = NULL; | |
5547 | } | |
5548 | ||
5549 | if (elf_dynverref (abfd) != 0) | |
5550 | { | |
5551 | Elf_Internal_Shdr *hdr; | |
5552 | Elf_External_Verneed *everneed; | |
5553 | Elf_Internal_Verneed *iverneed; | |
5554 | unsigned int i; | |
5555 | ||
5556 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
5557 | ||
dc810e39 | 5558 | amt = (bfd_size_type) hdr->sh_info * sizeof (Elf_Internal_Verneed); |
252b5132 | 5559 | elf_tdata (abfd)->verref = |
dc810e39 | 5560 | (Elf_Internal_Verneed *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5561 | if (elf_tdata (abfd)->verref == NULL) |
5562 | goto error_return; | |
5563 | ||
5564 | elf_tdata (abfd)->cverrefs = hdr->sh_info; | |
5565 | ||
5566 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
5567 | if (contents == NULL) | |
5568 | goto error_return; | |
5569 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 5570 | || bfd_bread ((PTR) contents, hdr->sh_size, abfd) != hdr->sh_size) |
252b5132 RH |
5571 | goto error_return; |
5572 | ||
5573 | everneed = (Elf_External_Verneed *) contents; | |
5574 | iverneed = elf_tdata (abfd)->verref; | |
5575 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
5576 | { | |
5577 | Elf_External_Vernaux *evernaux; | |
5578 | Elf_Internal_Vernaux *ivernaux; | |
5579 | unsigned int j; | |
5580 | ||
5581 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
5582 | ||
5583 | iverneed->vn_bfd = abfd; | |
5584 | ||
5585 | iverneed->vn_filename = | |
5586 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
5587 | iverneed->vn_file); | |
5588 | if (iverneed->vn_filename == NULL) | |
5589 | goto error_return; | |
5590 | ||
dc810e39 AM |
5591 | amt = iverneed->vn_cnt; |
5592 | amt *= sizeof (Elf_Internal_Vernaux); | |
5593 | iverneed->vn_auxptr = (Elf_Internal_Vernaux *) bfd_alloc (abfd, amt); | |
252b5132 RH |
5594 | |
5595 | evernaux = ((Elf_External_Vernaux *) | |
5596 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
5597 | ivernaux = iverneed->vn_auxptr; | |
5598 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
5599 | { | |
5600 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
5601 | ||
5602 | ivernaux->vna_nodename = | |
5603 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
5604 | ivernaux->vna_name); | |
5605 | if (ivernaux->vna_nodename == NULL) | |
5606 | goto error_return; | |
5607 | ||
5608 | if (j + 1 < iverneed->vn_cnt) | |
5609 | ivernaux->vna_nextptr = ivernaux + 1; | |
5610 | else | |
5611 | ivernaux->vna_nextptr = NULL; | |
5612 | ||
5613 | evernaux = ((Elf_External_Vernaux *) | |
5614 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
5615 | } | |
5616 | ||
5617 | if (i + 1 < hdr->sh_info) | |
5618 | iverneed->vn_nextref = iverneed + 1; | |
5619 | else | |
5620 | iverneed->vn_nextref = NULL; | |
5621 | ||
5622 | everneed = ((Elf_External_Verneed *) | |
5623 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
5624 | } | |
5625 | ||
5626 | free (contents); | |
5627 | contents = NULL; | |
5628 | } | |
5629 | ||
5630 | return true; | |
5631 | ||
5632 | error_return: | |
5633 | if (contents == NULL) | |
5634 | free (contents); | |
5635 | return false; | |
5636 | } | |
5637 | \f | |
5638 | asymbol * | |
5639 | _bfd_elf_make_empty_symbol (abfd) | |
5640 | bfd *abfd; | |
5641 | { | |
5642 | elf_symbol_type *newsym; | |
dc810e39 | 5643 | bfd_size_type amt = sizeof (elf_symbol_type); |
252b5132 | 5644 | |
dc810e39 | 5645 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5646 | if (!newsym) |
5647 | return NULL; | |
5648 | else | |
5649 | { | |
5650 | newsym->symbol.the_bfd = abfd; | |
5651 | return &newsym->symbol; | |
5652 | } | |
5653 | } | |
5654 | ||
5655 | void | |
5656 | _bfd_elf_get_symbol_info (ignore_abfd, symbol, ret) | |
7442e600 | 5657 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
5658 | asymbol *symbol; |
5659 | symbol_info *ret; | |
5660 | { | |
5661 | bfd_symbol_info (symbol, ret); | |
5662 | } | |
5663 | ||
5664 | /* Return whether a symbol name implies a local symbol. Most targets | |
5665 | use this function for the is_local_label_name entry point, but some | |
5666 | override it. */ | |
5667 | ||
5668 | boolean | |
5669 | _bfd_elf_is_local_label_name (abfd, name) | |
7442e600 | 5670 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
5671 | const char *name; |
5672 | { | |
5673 | /* Normal local symbols start with ``.L''. */ | |
5674 | if (name[0] == '.' && name[1] == 'L') | |
5675 | return true; | |
5676 | ||
5677 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
5678 | DWARF debugging symbols starting with ``..''. */ | |
5679 | if (name[0] == '.' && name[1] == '.') | |
5680 | return true; | |
5681 | ||
5682 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
5683 | emitting DWARF debugging output. I suspect this is actually a | |
5684 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
5685 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
5686 | underscore to be emitted on some ELF targets). For ease of use, | |
5687 | we treat such symbols as local. */ | |
5688 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
5689 | return true; | |
5690 | ||
5691 | return false; | |
5692 | } | |
5693 | ||
5694 | alent * | |
5695 | _bfd_elf_get_lineno (ignore_abfd, symbol) | |
7442e600 ILT |
5696 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
5697 | asymbol *symbol ATTRIBUTE_UNUSED; | |
252b5132 RH |
5698 | { |
5699 | abort (); | |
5700 | return NULL; | |
5701 | } | |
5702 | ||
5703 | boolean | |
5704 | _bfd_elf_set_arch_mach (abfd, arch, machine) | |
5705 | bfd *abfd; | |
5706 | enum bfd_architecture arch; | |
5707 | unsigned long machine; | |
5708 | { | |
5709 | /* If this isn't the right architecture for this backend, and this | |
5710 | isn't the generic backend, fail. */ | |
5711 | if (arch != get_elf_backend_data (abfd)->arch | |
5712 | && arch != bfd_arch_unknown | |
5713 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
5714 | return false; | |
5715 | ||
5716 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
5717 | } | |
5718 | ||
d1fad7c6 NC |
5719 | /* Find the function to a particular section and offset, |
5720 | for error reporting. */ | |
252b5132 | 5721 | |
d1fad7c6 NC |
5722 | static boolean |
5723 | elf_find_function (abfd, section, symbols, offset, | |
4e8a9624 | 5724 | filename_ptr, functionname_ptr) |
d1fad7c6 | 5725 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
5726 | asection *section; |
5727 | asymbol **symbols; | |
5728 | bfd_vma offset; | |
4e8a9624 AM |
5729 | const char **filename_ptr; |
5730 | const char **functionname_ptr; | |
252b5132 | 5731 | { |
252b5132 RH |
5732 | const char *filename; |
5733 | asymbol *func; | |
5734 | bfd_vma low_func; | |
5735 | asymbol **p; | |
5736 | ||
252b5132 RH |
5737 | filename = NULL; |
5738 | func = NULL; | |
5739 | low_func = 0; | |
5740 | ||
5741 | for (p = symbols; *p != NULL; p++) | |
5742 | { | |
5743 | elf_symbol_type *q; | |
5744 | ||
5745 | q = (elf_symbol_type *) *p; | |
5746 | ||
5747 | if (bfd_get_section (&q->symbol) != section) | |
5748 | continue; | |
5749 | ||
5750 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)) | |
5751 | { | |
5752 | default: | |
5753 | break; | |
5754 | case STT_FILE: | |
5755 | filename = bfd_asymbol_name (&q->symbol); | |
5756 | break; | |
5757 | case STT_NOTYPE: | |
5758 | case STT_FUNC: | |
5759 | if (q->symbol.section == section | |
5760 | && q->symbol.value >= low_func | |
5761 | && q->symbol.value <= offset) | |
5762 | { | |
5763 | func = (asymbol *) q; | |
5764 | low_func = q->symbol.value; | |
5765 | } | |
5766 | break; | |
5767 | } | |
5768 | } | |
5769 | ||
5770 | if (func == NULL) | |
5771 | return false; | |
5772 | ||
d1fad7c6 NC |
5773 | if (filename_ptr) |
5774 | *filename_ptr = filename; | |
5775 | if (functionname_ptr) | |
5776 | *functionname_ptr = bfd_asymbol_name (func); | |
5777 | ||
5778 | return true; | |
5779 | } | |
5780 | ||
5781 | /* Find the nearest line to a particular section and offset, | |
5782 | for error reporting. */ | |
5783 | ||
5784 | boolean | |
5785 | _bfd_elf_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 | 5786 | filename_ptr, functionname_ptr, line_ptr) |
d1fad7c6 NC |
5787 | bfd *abfd; |
5788 | asection *section; | |
5789 | asymbol **symbols; | |
5790 | bfd_vma offset; | |
4e8a9624 AM |
5791 | const char **filename_ptr; |
5792 | const char **functionname_ptr; | |
d1fad7c6 NC |
5793 | unsigned int *line_ptr; |
5794 | { | |
5795 | boolean found; | |
5796 | ||
5797 | if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
5798 | filename_ptr, functionname_ptr, |
5799 | line_ptr)) | |
d1fad7c6 NC |
5800 | { |
5801 | if (!*functionname_ptr) | |
4e8a9624 AM |
5802 | elf_find_function (abfd, section, symbols, offset, |
5803 | *filename_ptr ? NULL : filename_ptr, | |
5804 | functionname_ptr); | |
5805 | ||
d1fad7c6 NC |
5806 | return true; |
5807 | } | |
5808 | ||
5809 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
4e8a9624 AM |
5810 | filename_ptr, functionname_ptr, |
5811 | line_ptr, 0, | |
5812 | &elf_tdata (abfd)->dwarf2_find_line_info)) | |
d1fad7c6 NC |
5813 | { |
5814 | if (!*functionname_ptr) | |
4e8a9624 AM |
5815 | elf_find_function (abfd, section, symbols, offset, |
5816 | *filename_ptr ? NULL : filename_ptr, | |
5817 | functionname_ptr); | |
5818 | ||
d1fad7c6 NC |
5819 | return true; |
5820 | } | |
5821 | ||
5822 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
5823 | &found, filename_ptr, |
5824 | functionname_ptr, line_ptr, | |
5825 | &elf_tdata (abfd)->line_info)) | |
d1fad7c6 NC |
5826 | return false; |
5827 | if (found) | |
5828 | return true; | |
5829 | ||
5830 | if (symbols == NULL) | |
5831 | return false; | |
5832 | ||
5833 | if (! elf_find_function (abfd, section, symbols, offset, | |
4e8a9624 | 5834 | filename_ptr, functionname_ptr)) |
d1fad7c6 NC |
5835 | return false; |
5836 | ||
252b5132 RH |
5837 | *line_ptr = 0; |
5838 | return true; | |
5839 | } | |
5840 | ||
5841 | int | |
5842 | _bfd_elf_sizeof_headers (abfd, reloc) | |
5843 | bfd *abfd; | |
5844 | boolean reloc; | |
5845 | { | |
5846 | int ret; | |
5847 | ||
5848 | ret = get_elf_backend_data (abfd)->s->sizeof_ehdr; | |
5849 | if (! reloc) | |
5850 | ret += get_program_header_size (abfd); | |
5851 | return ret; | |
5852 | } | |
5853 | ||
5854 | boolean | |
5855 | _bfd_elf_set_section_contents (abfd, section, location, offset, count) | |
5856 | bfd *abfd; | |
5857 | sec_ptr section; | |
5858 | PTR location; | |
5859 | file_ptr offset; | |
5860 | bfd_size_type count; | |
5861 | { | |
5862 | Elf_Internal_Shdr *hdr; | |
dc810e39 | 5863 | bfd_signed_vma pos; |
252b5132 RH |
5864 | |
5865 | if (! abfd->output_has_begun | |
5866 | && ! _bfd_elf_compute_section_file_positions | |
5867 | (abfd, (struct bfd_link_info *) NULL)) | |
5868 | return false; | |
5869 | ||
5870 | hdr = &elf_section_data (section)->this_hdr; | |
dc810e39 AM |
5871 | pos = hdr->sh_offset + offset; |
5872 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
5873 | || bfd_bwrite (location, count, abfd) != count) | |
252b5132 RH |
5874 | return false; |
5875 | ||
5876 | return true; | |
5877 | } | |
5878 | ||
5879 | void | |
5880 | _bfd_elf_no_info_to_howto (abfd, cache_ptr, dst) | |
7442e600 ILT |
5881 | bfd *abfd ATTRIBUTE_UNUSED; |
5882 | arelent *cache_ptr ATTRIBUTE_UNUSED; | |
5883 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED; | |
252b5132 RH |
5884 | { |
5885 | abort (); | |
5886 | } | |
5887 | ||
5888 | #if 0 | |
5889 | void | |
5890 | _bfd_elf_no_info_to_howto_rel (abfd, cache_ptr, dst) | |
5891 | bfd *abfd; | |
5892 | arelent *cache_ptr; | |
5893 | Elf_Internal_Rel *dst; | |
5894 | { | |
5895 | abort (); | |
5896 | } | |
5897 | #endif | |
5898 | ||
5899 | /* Try to convert a non-ELF reloc into an ELF one. */ | |
5900 | ||
5901 | boolean | |
5902 | _bfd_elf_validate_reloc (abfd, areloc) | |
5903 | bfd *abfd; | |
5904 | arelent *areloc; | |
5905 | { | |
c044fabd | 5906 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
5907 | |
5908 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
5909 | { | |
5910 | bfd_reloc_code_real_type code; | |
5911 | reloc_howto_type *howto; | |
5912 | ||
5913 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 5914 | equivalent ELF reloc. */ |
252b5132 RH |
5915 | |
5916 | if (areloc->howto->pc_relative) | |
5917 | { | |
5918 | switch (areloc->howto->bitsize) | |
5919 | { | |
5920 | case 8: | |
5921 | code = BFD_RELOC_8_PCREL; | |
5922 | break; | |
5923 | case 12: | |
5924 | code = BFD_RELOC_12_PCREL; | |
5925 | break; | |
5926 | case 16: | |
5927 | code = BFD_RELOC_16_PCREL; | |
5928 | break; | |
5929 | case 24: | |
5930 | code = BFD_RELOC_24_PCREL; | |
5931 | break; | |
5932 | case 32: | |
5933 | code = BFD_RELOC_32_PCREL; | |
5934 | break; | |
5935 | case 64: | |
5936 | code = BFD_RELOC_64_PCREL; | |
5937 | break; | |
5938 | default: | |
5939 | goto fail; | |
5940 | } | |
5941 | ||
5942 | howto = bfd_reloc_type_lookup (abfd, code); | |
5943 | ||
5944 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
5945 | { | |
5946 | if (howto->pcrel_offset) | |
5947 | areloc->addend += areloc->address; | |
5948 | else | |
5949 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
5950 | } | |
5951 | } | |
5952 | else | |
5953 | { | |
5954 | switch (areloc->howto->bitsize) | |
5955 | { | |
5956 | case 8: | |
5957 | code = BFD_RELOC_8; | |
5958 | break; | |
5959 | case 14: | |
5960 | code = BFD_RELOC_14; | |
5961 | break; | |
5962 | case 16: | |
5963 | code = BFD_RELOC_16; | |
5964 | break; | |
5965 | case 26: | |
5966 | code = BFD_RELOC_26; | |
5967 | break; | |
5968 | case 32: | |
5969 | code = BFD_RELOC_32; | |
5970 | break; | |
5971 | case 64: | |
5972 | code = BFD_RELOC_64; | |
5973 | break; | |
5974 | default: | |
5975 | goto fail; | |
5976 | } | |
5977 | ||
5978 | howto = bfd_reloc_type_lookup (abfd, code); | |
5979 | } | |
5980 | ||
5981 | if (howto) | |
5982 | areloc->howto = howto; | |
5983 | else | |
5984 | goto fail; | |
5985 | } | |
5986 | ||
5987 | return true; | |
5988 | ||
5989 | fail: | |
5990 | (*_bfd_error_handler) | |
5991 | (_("%s: unsupported relocation type %s"), | |
8f615d07 | 5992 | bfd_archive_filename (abfd), areloc->howto->name); |
252b5132 RH |
5993 | bfd_set_error (bfd_error_bad_value); |
5994 | return false; | |
5995 | } | |
5996 | ||
5997 | boolean | |
5998 | _bfd_elf_close_and_cleanup (abfd) | |
5999 | bfd *abfd; | |
6000 | { | |
6001 | if (bfd_get_format (abfd) == bfd_object) | |
6002 | { | |
6003 | if (elf_shstrtab (abfd) != NULL) | |
2b0f7ef9 | 6004 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
252b5132 RH |
6005 | } |
6006 | ||
6007 | return _bfd_generic_close_and_cleanup (abfd); | |
6008 | } | |
6009 | ||
6010 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
6011 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
6012 | range-checking to interfere. There is nothing else to do in processing | |
6013 | this reloc. */ | |
6014 | ||
6015 | bfd_reloc_status_type | |
6016 | _bfd_elf_rel_vtable_reloc_fn (abfd, re, symbol, data, is, obfd, errmsg) | |
7442e600 ILT |
6017 | bfd *abfd ATTRIBUTE_UNUSED; |
6018 | arelent *re ATTRIBUTE_UNUSED; | |
6019 | struct symbol_cache_entry *symbol ATTRIBUTE_UNUSED; | |
6020 | PTR data ATTRIBUTE_UNUSED; | |
6021 | asection *is ATTRIBUTE_UNUSED; | |
6022 | bfd *obfd ATTRIBUTE_UNUSED; | |
6023 | char **errmsg ATTRIBUTE_UNUSED; | |
252b5132 RH |
6024 | { |
6025 | return bfd_reloc_ok; | |
6026 | } | |
252b5132 RH |
6027 | \f |
6028 | /* Elf core file support. Much of this only works on native | |
6029 | toolchains, since we rely on knowing the | |
6030 | machine-dependent procfs structure in order to pick | |
c044fabd | 6031 | out details about the corefile. */ |
252b5132 RH |
6032 | |
6033 | #ifdef HAVE_SYS_PROCFS_H | |
6034 | # include <sys/procfs.h> | |
6035 | #endif | |
6036 | ||
c044fabd | 6037 | /* FIXME: this is kinda wrong, but it's what gdb wants. */ |
252b5132 RH |
6038 | |
6039 | static int | |
6040 | elfcore_make_pid (abfd) | |
c044fabd | 6041 | bfd *abfd; |
252b5132 RH |
6042 | { |
6043 | return ((elf_tdata (abfd)->core_lwpid << 16) | |
6044 | + (elf_tdata (abfd)->core_pid)); | |
6045 | } | |
6046 | ||
252b5132 RH |
6047 | /* If there isn't a section called NAME, make one, using |
6048 | data from SECT. Note, this function will generate a | |
6049 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 6050 | overwrite it. */ |
252b5132 RH |
6051 | |
6052 | static boolean | |
6053 | elfcore_maybe_make_sect (abfd, name, sect) | |
c044fabd KH |
6054 | bfd *abfd; |
6055 | char *name; | |
6056 | asection *sect; | |
252b5132 | 6057 | { |
c044fabd | 6058 | asection *sect2; |
252b5132 RH |
6059 | |
6060 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
6061 | return true; | |
6062 | ||
6063 | sect2 = bfd_make_section (abfd, name); | |
6064 | if (sect2 == NULL) | |
6065 | return false; | |
6066 | ||
6067 | sect2->_raw_size = sect->_raw_size; | |
6068 | sect2->filepos = sect->filepos; | |
6069 | sect2->flags = sect->flags; | |
6070 | sect2->alignment_power = sect->alignment_power; | |
6071 | return true; | |
6072 | } | |
6073 | ||
bb0082d6 AM |
6074 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
6075 | actually creates up to two pseudosections: | |
6076 | - For the single-threaded case, a section named NAME, unless | |
6077 | such a section already exists. | |
6078 | - For the multi-threaded case, a section named "NAME/PID", where | |
6079 | PID is elfcore_make_pid (abfd). | |
6080 | Both pseudosections have identical contents. */ | |
6081 | boolean | |
6082 | _bfd_elfcore_make_pseudosection (abfd, name, size, filepos) | |
6083 | bfd *abfd; | |
6084 | char *name; | |
dc810e39 AM |
6085 | size_t size; |
6086 | ufile_ptr filepos; | |
bb0082d6 AM |
6087 | { |
6088 | char buf[100]; | |
6089 | char *threaded_name; | |
6090 | asection *sect; | |
6091 | ||
6092 | /* Build the section name. */ | |
6093 | ||
6094 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
dc810e39 | 6095 | threaded_name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1); |
bb0082d6 AM |
6096 | if (threaded_name == NULL) |
6097 | return false; | |
6098 | strcpy (threaded_name, buf); | |
6099 | ||
6100 | sect = bfd_make_section (abfd, threaded_name); | |
6101 | if (sect == NULL) | |
6102 | return false; | |
6103 | sect->_raw_size = size; | |
6104 | sect->filepos = filepos; | |
6105 | sect->flags = SEC_HAS_CONTENTS; | |
6106 | sect->alignment_power = 2; | |
6107 | ||
936e320b | 6108 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
6109 | } |
6110 | ||
252b5132 | 6111 | /* prstatus_t exists on: |
4a938328 | 6112 | solaris 2.5+ |
252b5132 RH |
6113 | linux 2.[01] + glibc |
6114 | unixware 4.2 | |
6115 | */ | |
6116 | ||
6117 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 AM |
6118 | static boolean elfcore_grok_prstatus PARAMS ((bfd *, Elf_Internal_Note *)); |
6119 | ||
252b5132 RH |
6120 | static boolean |
6121 | elfcore_grok_prstatus (abfd, note) | |
c044fabd KH |
6122 | bfd *abfd; |
6123 | Elf_Internal_Note *note; | |
252b5132 | 6124 | { |
dc810e39 | 6125 | size_t raw_size; |
7ee38065 | 6126 | int offset; |
252b5132 | 6127 | |
4a938328 MS |
6128 | if (note->descsz == sizeof (prstatus_t)) |
6129 | { | |
6130 | prstatus_t prstat; | |
252b5132 | 6131 | |
e0ebfc61 | 6132 | raw_size = sizeof (prstat.pr_reg); |
7ee38065 | 6133 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 6134 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 6135 | |
fa49d224 NC |
6136 | /* Do not overwrite the core signal if it |
6137 | has already been set by another thread. */ | |
6138 | if (elf_tdata (abfd)->core_signal == 0) | |
6139 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
4a938328 | 6140 | elf_tdata (abfd)->core_pid = prstat.pr_pid; |
252b5132 | 6141 | |
4a938328 MS |
6142 | /* pr_who exists on: |
6143 | solaris 2.5+ | |
6144 | unixware 4.2 | |
6145 | pr_who doesn't exist on: | |
6146 | linux 2.[01] | |
6147 | */ | |
252b5132 | 6148 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
4a938328 | 6149 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
252b5132 | 6150 | #endif |
4a938328 | 6151 | } |
7ee38065 | 6152 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
6153 | else if (note->descsz == sizeof (prstatus32_t)) |
6154 | { | |
6155 | /* 64-bit host, 32-bit corefile */ | |
6156 | prstatus32_t prstat; | |
6157 | ||
e0ebfc61 | 6158 | raw_size = sizeof (prstat.pr_reg); |
7ee38065 | 6159 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
6160 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
6161 | ||
fa49d224 NC |
6162 | /* Do not overwrite the core signal if it |
6163 | has already been set by another thread. */ | |
6164 | if (elf_tdata (abfd)->core_signal == 0) | |
6165 | elf_tdata (abfd)->core_signal = prstat.pr_cursig; | |
4a938328 MS |
6166 | elf_tdata (abfd)->core_pid = prstat.pr_pid; |
6167 | ||
6168 | /* pr_who exists on: | |
6169 | solaris 2.5+ | |
6170 | unixware 4.2 | |
6171 | pr_who doesn't exist on: | |
6172 | linux 2.[01] | |
6173 | */ | |
7ee38065 | 6174 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
4a938328 MS |
6175 | elf_tdata (abfd)->core_lwpid = prstat.pr_who; |
6176 | #endif | |
6177 | } | |
7ee38065 | 6178 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
6179 | else |
6180 | { | |
6181 | /* Fail - we don't know how to handle any other | |
6182 | note size (ie. data object type). */ | |
6183 | return true; | |
6184 | } | |
252b5132 | 6185 | |
bb0082d6 | 6186 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b AM |
6187 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
6188 | raw_size, note->descpos + offset); | |
252b5132 RH |
6189 | } |
6190 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
6191 | ||
bb0082d6 | 6192 | /* Create a pseudosection containing the exact contents of NOTE. */ |
252b5132 | 6193 | static boolean |
ff08c6bb | 6194 | elfcore_make_note_pseudosection (abfd, name, note) |
c044fabd | 6195 | bfd *abfd; |
ff08c6bb | 6196 | char *name; |
c044fabd | 6197 | Elf_Internal_Note *note; |
252b5132 | 6198 | { |
936e320b AM |
6199 | return _bfd_elfcore_make_pseudosection (abfd, name, |
6200 | note->descsz, note->descpos); | |
252b5132 RH |
6201 | } |
6202 | ||
ff08c6bb JB |
6203 | /* There isn't a consistent prfpregset_t across platforms, |
6204 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
6205 | data structure apart. */ |
6206 | ||
ff08c6bb JB |
6207 | static boolean |
6208 | elfcore_grok_prfpreg (abfd, note) | |
c044fabd KH |
6209 | bfd *abfd; |
6210 | Elf_Internal_Note *note; | |
ff08c6bb JB |
6211 | { |
6212 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
6213 | } | |
6214 | ||
ff08c6bb JB |
6215 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
6216 | type of 5 (NT_PRXFPREG). Just include the whole note's contents | |
6217 | literally. */ | |
c044fabd | 6218 | |
ff08c6bb JB |
6219 | static boolean |
6220 | elfcore_grok_prxfpreg (abfd, note) | |
c044fabd KH |
6221 | bfd *abfd; |
6222 | Elf_Internal_Note *note; | |
ff08c6bb JB |
6223 | { |
6224 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
6225 | } | |
6226 | ||
252b5132 | 6227 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 6228 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 6229 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
6230 | typedef prpsinfo32_t elfcore_psinfo32_t; |
6231 | #endif | |
252b5132 RH |
6232 | #endif |
6233 | ||
6234 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 6235 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 6236 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
6237 | typedef psinfo32_t elfcore_psinfo32_t; |
6238 | #endif | |
252b5132 RH |
6239 | #endif |
6240 | ||
252b5132 RH |
6241 | /* return a malloc'ed copy of a string at START which is at |
6242 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 6243 | the copy will always have a terminating '\0'. */ |
252b5132 | 6244 | |
936e320b | 6245 | char * |
bb0082d6 | 6246 | _bfd_elfcore_strndup (abfd, start, max) |
c044fabd KH |
6247 | bfd *abfd; |
6248 | char *start; | |
dc810e39 | 6249 | size_t max; |
252b5132 | 6250 | { |
dc810e39 | 6251 | char *dups; |
c044fabd | 6252 | char *end = memchr (start, '\0', max); |
dc810e39 | 6253 | size_t len; |
252b5132 RH |
6254 | |
6255 | if (end == NULL) | |
6256 | len = max; | |
6257 | else | |
6258 | len = end - start; | |
6259 | ||
dc810e39 AM |
6260 | dups = bfd_alloc (abfd, (bfd_size_type) len + 1); |
6261 | if (dups == NULL) | |
252b5132 RH |
6262 | return NULL; |
6263 | ||
dc810e39 AM |
6264 | memcpy (dups, start, len); |
6265 | dups[len] = '\0'; | |
252b5132 | 6266 | |
dc810e39 | 6267 | return dups; |
252b5132 RH |
6268 | } |
6269 | ||
bb0082d6 | 6270 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
a7b97311 | 6271 | static boolean elfcore_grok_psinfo PARAMS ((bfd *, Elf_Internal_Note *)); |
bb0082d6 | 6272 | |
252b5132 RH |
6273 | static boolean |
6274 | elfcore_grok_psinfo (abfd, note) | |
c044fabd KH |
6275 | bfd *abfd; |
6276 | Elf_Internal_Note *note; | |
252b5132 | 6277 | { |
4a938328 MS |
6278 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
6279 | { | |
6280 | elfcore_psinfo_t psinfo; | |
252b5132 | 6281 | |
7ee38065 | 6282 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 6283 | |
4a938328 | 6284 | elf_tdata (abfd)->core_program |
936e320b AM |
6285 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
6286 | sizeof (psinfo.pr_fname)); | |
252b5132 | 6287 | |
4a938328 | 6288 | elf_tdata (abfd)->core_command |
936e320b AM |
6289 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
6290 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 6291 | } |
7ee38065 | 6292 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
6293 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
6294 | { | |
6295 | /* 64-bit host, 32-bit corefile */ | |
6296 | elfcore_psinfo32_t psinfo; | |
6297 | ||
7ee38065 | 6298 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 6299 | |
4a938328 | 6300 | elf_tdata (abfd)->core_program |
936e320b AM |
6301 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
6302 | sizeof (psinfo.pr_fname)); | |
4a938328 MS |
6303 | |
6304 | elf_tdata (abfd)->core_command | |
936e320b AM |
6305 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
6306 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
6307 | } |
6308 | #endif | |
6309 | ||
6310 | else | |
6311 | { | |
6312 | /* Fail - we don't know how to handle any other | |
6313 | note size (ie. data object type). */ | |
6314 | return true; | |
6315 | } | |
252b5132 RH |
6316 | |
6317 | /* Note that for some reason, a spurious space is tacked | |
6318 | onto the end of the args in some (at least one anyway) | |
c044fabd | 6319 | implementations, so strip it off if it exists. */ |
252b5132 RH |
6320 | |
6321 | { | |
c044fabd | 6322 | char *command = elf_tdata (abfd)->core_command; |
252b5132 RH |
6323 | int n = strlen (command); |
6324 | ||
6325 | if (0 < n && command[n - 1] == ' ') | |
6326 | command[n - 1] = '\0'; | |
6327 | } | |
6328 | ||
6329 | return true; | |
6330 | } | |
6331 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
6332 | ||
252b5132 | 6333 | #if defined (HAVE_PSTATUS_T) |
51316059 MS |
6334 | static boolean elfcore_grok_pstatus PARAMS ((bfd *, Elf_Internal_Note *)); |
6335 | ||
252b5132 RH |
6336 | static boolean |
6337 | elfcore_grok_pstatus (abfd, note) | |
c044fabd KH |
6338 | bfd *abfd; |
6339 | Elf_Internal_Note *note; | |
252b5132 | 6340 | { |
f572a39d AM |
6341 | if (note->descsz == sizeof (pstatus_t) |
6342 | #if defined (HAVE_PXSTATUS_T) | |
6343 | || note->descsz == sizeof (pxstatus_t) | |
6344 | #endif | |
6345 | ) | |
4a938328 MS |
6346 | { |
6347 | pstatus_t pstat; | |
252b5132 | 6348 | |
4a938328 | 6349 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 6350 | |
4a938328 MS |
6351 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
6352 | } | |
7ee38065 | 6353 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
6354 | else if (note->descsz == sizeof (pstatus32_t)) |
6355 | { | |
6356 | /* 64-bit host, 32-bit corefile */ | |
6357 | pstatus32_t pstat; | |
252b5132 | 6358 | |
4a938328 | 6359 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 6360 | |
4a938328 MS |
6361 | elf_tdata (abfd)->core_pid = pstat.pr_pid; |
6362 | } | |
6363 | #endif | |
252b5132 RH |
6364 | /* Could grab some more details from the "representative" |
6365 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 6366 | NT_LWPSTATUS note, presumably. */ |
252b5132 RH |
6367 | |
6368 | return true; | |
6369 | } | |
6370 | #endif /* defined (HAVE_PSTATUS_T) */ | |
6371 | ||
252b5132 | 6372 | #if defined (HAVE_LWPSTATUS_T) |
51316059 MS |
6373 | static boolean elfcore_grok_lwpstatus PARAMS ((bfd *, Elf_Internal_Note *)); |
6374 | ||
252b5132 RH |
6375 | static boolean |
6376 | elfcore_grok_lwpstatus (abfd, note) | |
c044fabd KH |
6377 | bfd *abfd; |
6378 | Elf_Internal_Note *note; | |
252b5132 RH |
6379 | { |
6380 | lwpstatus_t lwpstat; | |
6381 | char buf[100]; | |
c044fabd KH |
6382 | char *name; |
6383 | asection *sect; | |
252b5132 | 6384 | |
f572a39d AM |
6385 | if (note->descsz != sizeof (lwpstat) |
6386 | #if defined (HAVE_LWPXSTATUS_T) | |
6387 | && note->descsz != sizeof (lwpxstatus_t) | |
6388 | #endif | |
6389 | ) | |
252b5132 RH |
6390 | return true; |
6391 | ||
6392 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
6393 | ||
6394 | elf_tdata (abfd)->core_lwpid = lwpstat.pr_lwpid; | |
6395 | elf_tdata (abfd)->core_signal = lwpstat.pr_cursig; | |
6396 | ||
c044fabd | 6397 | /* Make a ".reg/999" section. */ |
252b5132 RH |
6398 | |
6399 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
dc810e39 | 6400 | name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1); |
252b5132 RH |
6401 | if (name == NULL) |
6402 | return false; | |
6403 | strcpy (name, buf); | |
6404 | ||
6405 | sect = bfd_make_section (abfd, name); | |
6406 | if (sect == NULL) | |
6407 | return false; | |
6408 | ||
6409 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
6410 | sect->_raw_size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); | |
6411 | sect->filepos = note->descpos | |
6412 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
6413 | #endif | |
6414 | ||
6415 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
6416 | sect->_raw_size = sizeof (lwpstat.pr_reg); | |
6417 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); | |
6418 | #endif | |
6419 | ||
6420 | sect->flags = SEC_HAS_CONTENTS; | |
6421 | sect->alignment_power = 2; | |
6422 | ||
6423 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
6424 | return false; | |
6425 | ||
6426 | /* Make a ".reg2/999" section */ | |
6427 | ||
6428 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
dc810e39 | 6429 | name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1); |
252b5132 RH |
6430 | if (name == NULL) |
6431 | return false; | |
6432 | strcpy (name, buf); | |
6433 | ||
6434 | sect = bfd_make_section (abfd, name); | |
6435 | if (sect == NULL) | |
6436 | return false; | |
6437 | ||
6438 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
6439 | sect->_raw_size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); | |
6440 | sect->filepos = note->descpos | |
6441 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
6442 | #endif | |
6443 | ||
6444 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
6445 | sect->_raw_size = sizeof (lwpstat.pr_fpreg); | |
6446 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); | |
6447 | #endif | |
6448 | ||
6449 | sect->flags = SEC_HAS_CONTENTS; | |
6450 | sect->alignment_power = 2; | |
6451 | ||
936e320b | 6452 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
6453 | } |
6454 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
6455 | ||
16e9c715 NC |
6456 | #if defined (HAVE_WIN32_PSTATUS_T) |
6457 | static boolean | |
6458 | elfcore_grok_win32pstatus (abfd, note) | |
c044fabd KH |
6459 | bfd *abfd; |
6460 | Elf_Internal_Note *note; | |
16e9c715 NC |
6461 | { |
6462 | char buf[30]; | |
c044fabd KH |
6463 | char *name; |
6464 | asection *sect; | |
16e9c715 NC |
6465 | win32_pstatus_t pstatus; |
6466 | ||
6467 | if (note->descsz < sizeof (pstatus)) | |
6468 | return true; | |
6469 | ||
e8eab623 | 6470 | memcpy (&pstatus, note->descdata, sizeof (pstatus)); |
c044fabd KH |
6471 | |
6472 | switch (pstatus.data_type) | |
16e9c715 NC |
6473 | { |
6474 | case NOTE_INFO_PROCESS: | |
6475 | /* FIXME: need to add ->core_command. */ | |
6476 | elf_tdata (abfd)->core_signal = pstatus.data.process_info.signal; | |
6477 | elf_tdata (abfd)->core_pid = pstatus.data.process_info.pid; | |
c044fabd | 6478 | break; |
16e9c715 NC |
6479 | |
6480 | case NOTE_INFO_THREAD: | |
6481 | /* Make a ".reg/999" section. */ | |
6482 | sprintf (buf, ".reg/%d", pstatus.data.thread_info.tid); | |
c044fabd | 6483 | |
dc810e39 | 6484 | name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1); |
16e9c715 | 6485 | if (name == NULL) |
c044fabd KH |
6486 | return false; |
6487 | ||
16e9c715 NC |
6488 | strcpy (name, buf); |
6489 | ||
6490 | sect = bfd_make_section (abfd, name); | |
6491 | if (sect == NULL) | |
c044fabd KH |
6492 | return false; |
6493 | ||
16e9c715 | 6494 | sect->_raw_size = sizeof (pstatus.data.thread_info.thread_context); |
079e9a2f AM |
6495 | sect->filepos = (note->descpos |
6496 | + offsetof (struct win32_pstatus, | |
6497 | data.thread_info.thread_context)); | |
16e9c715 NC |
6498 | sect->flags = SEC_HAS_CONTENTS; |
6499 | sect->alignment_power = 2; | |
6500 | ||
6501 | if (pstatus.data.thread_info.is_active_thread) | |
6502 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
6503 | return false; | |
6504 | break; | |
6505 | ||
6506 | case NOTE_INFO_MODULE: | |
6507 | /* Make a ".module/xxxxxxxx" section. */ | |
c044fabd KH |
6508 | sprintf (buf, ".module/%08x", pstatus.data.module_info.base_address); |
6509 | ||
dc810e39 | 6510 | name = bfd_alloc (abfd, (bfd_size_type) strlen (buf) + 1); |
16e9c715 NC |
6511 | if (name == NULL) |
6512 | return false; | |
c044fabd | 6513 | |
16e9c715 | 6514 | strcpy (name, buf); |
252b5132 | 6515 | |
16e9c715 | 6516 | sect = bfd_make_section (abfd, name); |
c044fabd | 6517 | |
16e9c715 NC |
6518 | if (sect == NULL) |
6519 | return false; | |
c044fabd | 6520 | |
16e9c715 NC |
6521 | sect->_raw_size = note->descsz; |
6522 | sect->filepos = note->descpos; | |
6523 | sect->flags = SEC_HAS_CONTENTS; | |
6524 | sect->alignment_power = 2; | |
6525 | break; | |
6526 | ||
6527 | default: | |
6528 | return true; | |
6529 | } | |
6530 | ||
6531 | return true; | |
6532 | } | |
6533 | #endif /* HAVE_WIN32_PSTATUS_T */ | |
252b5132 RH |
6534 | |
6535 | static boolean | |
6536 | elfcore_grok_note (abfd, note) | |
c044fabd KH |
6537 | bfd *abfd; |
6538 | Elf_Internal_Note *note; | |
252b5132 | 6539 | { |
bb0082d6 AM |
6540 | struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6541 | ||
252b5132 RH |
6542 | switch (note->type) |
6543 | { | |
6544 | default: | |
6545 | return true; | |
6546 | ||
252b5132 | 6547 | case NT_PRSTATUS: |
bb0082d6 AM |
6548 | if (bed->elf_backend_grok_prstatus) |
6549 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
6550 | return true; | |
6551 | #if defined (HAVE_PRSTATUS_T) | |
252b5132 | 6552 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 AM |
6553 | #else |
6554 | return true; | |
252b5132 RH |
6555 | #endif |
6556 | ||
6557 | #if defined (HAVE_PSTATUS_T) | |
6558 | case NT_PSTATUS: | |
6559 | return elfcore_grok_pstatus (abfd, note); | |
6560 | #endif | |
6561 | ||
6562 | #if defined (HAVE_LWPSTATUS_T) | |
6563 | case NT_LWPSTATUS: | |
6564 | return elfcore_grok_lwpstatus (abfd, note); | |
6565 | #endif | |
6566 | ||
6567 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
6568 | return elfcore_grok_prfpreg (abfd, note); | |
6569 | ||
16e9c715 | 6570 | #if defined (HAVE_WIN32_PSTATUS_T) |
c044fabd | 6571 | case NT_WIN32PSTATUS: |
16e9c715 NC |
6572 | return elfcore_grok_win32pstatus (abfd, note); |
6573 | #endif | |
6574 | ||
c044fabd | 6575 | case NT_PRXFPREG: /* Linux SSE extension */ |
ff08c6bb JB |
6576 | if (note->namesz == 5 |
6577 | && ! strcmp (note->namedata, "LINUX")) | |
6578 | return elfcore_grok_prxfpreg (abfd, note); | |
6579 | else | |
6580 | return true; | |
6581 | ||
252b5132 RH |
6582 | case NT_PRPSINFO: |
6583 | case NT_PSINFO: | |
bb0082d6 AM |
6584 | if (bed->elf_backend_grok_psinfo) |
6585 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
6586 | return true; | |
6587 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) | |
252b5132 | 6588 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 AM |
6589 | #else |
6590 | return true; | |
252b5132 RH |
6591 | #endif |
6592 | } | |
6593 | } | |
6594 | ||
50b2bdb7 AM |
6595 | static boolean |
6596 | elfcore_netbsd_get_lwpid (note, lwpidp) | |
6597 | Elf_Internal_Note *note; | |
6598 | int *lwpidp; | |
6599 | { | |
6600 | char *cp; | |
6601 | ||
6602 | cp = strchr (note->namedata, '@'); | |
6603 | if (cp != NULL) | |
6604 | { | |
d2b64500 | 6605 | *lwpidp = atoi(cp + 1); |
50b2bdb7 AM |
6606 | return true; |
6607 | } | |
6608 | return false; | |
6609 | } | |
6610 | ||
6611 | static boolean | |
6612 | elfcore_grok_netbsd_procinfo (abfd, note) | |
6613 | bfd *abfd; | |
6614 | Elf_Internal_Note *note; | |
6615 | { | |
6616 | ||
6617 | /* Signal number at offset 0x08. */ | |
6618 | elf_tdata (abfd)->core_signal | |
6619 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); | |
6620 | ||
6621 | /* Process ID at offset 0x50. */ | |
6622 | elf_tdata (abfd)->core_pid | |
6623 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); | |
6624 | ||
6625 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
6626 | elf_tdata (abfd)->core_command | |
6627 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); | |
6628 | ||
6629 | return true; | |
6630 | } | |
6631 | ||
6632 | static boolean | |
6633 | elfcore_grok_netbsd_note (abfd, note) | |
6634 | bfd *abfd; | |
6635 | Elf_Internal_Note *note; | |
6636 | { | |
6637 | int lwp; | |
6638 | ||
6639 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
6640 | elf_tdata (abfd)->core_lwpid = lwp; | |
6641 | ||
b4db1224 | 6642 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
6643 | { |
6644 | /* NetBSD-specific core "procinfo". Note that we expect to | |
6645 | find this note before any of the others, which is fine, | |
6646 | since the kernel writes this note out first when it | |
6647 | creates a core file. */ | |
6648 | ||
6649 | return elfcore_grok_netbsd_procinfo (abfd, note); | |
6650 | } | |
6651 | ||
b4db1224 JT |
6652 | /* As of Jan 2002 there are no other machine-independent notes |
6653 | defined for NetBSD core files. If the note type is less | |
6654 | than the start of the machine-dependent note types, we don't | |
6655 | understand it. */ | |
50b2bdb7 | 6656 | |
b4db1224 | 6657 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
50b2bdb7 AM |
6658 | return true; |
6659 | ||
6660 | ||
6661 | switch (bfd_get_arch (abfd)) | |
6662 | { | |
6663 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and | |
6664 | PT_GETFPREGS == mach+2. */ | |
6665 | ||
6666 | case bfd_arch_alpha: | |
6667 | case bfd_arch_sparc: | |
6668 | switch (note->type) | |
6669 | { | |
b4db1224 | 6670 | case NT_NETBSDCORE_FIRSTMACH+0: |
50b2bdb7 AM |
6671 | return elfcore_make_note_pseudosection (abfd, ".reg", note); |
6672 | ||
b4db1224 | 6673 | case NT_NETBSDCORE_FIRSTMACH+2: |
50b2bdb7 AM |
6674 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); |
6675 | ||
6676 | default: | |
6677 | return true; | |
6678 | } | |
6679 | ||
6680 | /* On all other arch's, PT_GETREGS == mach+1 and | |
6681 | PT_GETFPREGS == mach+3. */ | |
6682 | ||
6683 | default: | |
6684 | switch (note->type) | |
6685 | { | |
b4db1224 | 6686 | case NT_NETBSDCORE_FIRSTMACH+1: |
50b2bdb7 AM |
6687 | return elfcore_make_note_pseudosection (abfd, ".reg", note); |
6688 | ||
b4db1224 | 6689 | case NT_NETBSDCORE_FIRSTMACH+3: |
50b2bdb7 AM |
6690 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); |
6691 | ||
6692 | default: | |
6693 | return true; | |
6694 | } | |
6695 | } | |
6696 | /* NOTREACHED */ | |
6697 | } | |
6698 | ||
7c76fa91 MS |
6699 | /* Function: elfcore_write_note |
6700 | ||
6701 | Inputs: | |
6702 | buffer to hold note | |
6703 | name of note | |
6704 | type of note | |
6705 | data for note | |
6706 | size of data for note | |
6707 | ||
6708 | Return: | |
6709 | End of buffer containing note. */ | |
6710 | ||
6711 | char * | |
6712 | elfcore_write_note (abfd, buf, bufsiz, name, type, input, size) | |
6713 | bfd *abfd; | |
6714 | char *buf; | |
6715 | int *bufsiz; | |
6716 | char *name; | |
6717 | int type; | |
6718 | void *input; | |
6719 | int size; | |
6720 | { | |
6721 | Elf_External_Note *xnp; | |
6722 | int namesz = strlen (name); | |
6723 | int newspace = BFD_ALIGN (sizeof (Elf_External_Note) + size + namesz - 1, 4); | |
6724 | char *p, *dest; | |
6725 | ||
6726 | p = realloc (buf, *bufsiz + newspace); | |
6727 | dest = p + *bufsiz; | |
6728 | *bufsiz += newspace; | |
6729 | xnp = (Elf_External_Note *) dest; | |
6730 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
6731 | H_PUT_32 (abfd, size, xnp->descsz); | |
6732 | H_PUT_32 (abfd, type, xnp->type); | |
6733 | strcpy (xnp->name, name); | |
6734 | memcpy (xnp->name + BFD_ALIGN (namesz, 4), input, size); | |
6735 | return p; | |
6736 | } | |
6737 | ||
6738 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) | |
6739 | char * | |
6740 | elfcore_write_prpsinfo (abfd, buf, bufsiz, fname, psargs) | |
6741 | bfd *abfd; | |
6742 | char *buf; | |
6743 | int *bufsiz; | |
6744 | char *fname; | |
6745 | char *psargs; | |
6746 | { | |
6747 | int note_type; | |
6748 | char *note_name = "CORE"; | |
6749 | ||
6750 | #if defined (HAVE_PSINFO_T) | |
6751 | psinfo_t data; | |
6752 | note_type = NT_PSINFO; | |
6753 | #else | |
6754 | prpsinfo_t data; | |
6755 | note_type = NT_PRPSINFO; | |
6756 | #endif | |
6757 | ||
6758 | memset (&data, 0, sizeof (data)); | |
6759 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
6760 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
6761 | return elfcore_write_note (abfd, buf, bufsiz, | |
6762 | note_name, note_type, &data, sizeof (data)); | |
6763 | } | |
6764 | #endif /* PSINFO_T or PRPSINFO_T */ | |
6765 | ||
6766 | #if defined (HAVE_PRSTATUS_T) | |
6767 | char * | |
6768 | elfcore_write_prstatus (abfd, buf, bufsiz, pid, cursig, gregs) | |
6769 | bfd *abfd; | |
6770 | char *buf; | |
6771 | int *bufsiz; | |
b87011e9 | 6772 | long pid; |
7c76fa91 MS |
6773 | int cursig; |
6774 | void *gregs; | |
6775 | { | |
6776 | prstatus_t prstat; | |
6777 | char *note_name = "CORE"; | |
6778 | ||
6779 | memset (&prstat, 0, sizeof (prstat)); | |
6780 | prstat.pr_pid = pid; | |
6781 | prstat.pr_cursig = cursig; | |
c106e334 | 6782 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); |
7c76fa91 MS |
6783 | return elfcore_write_note (abfd, buf, bufsiz, |
6784 | note_name, NT_PRSTATUS, &prstat, sizeof (prstat)); | |
6785 | } | |
6786 | #endif /* HAVE_PRSTATUS_T */ | |
6787 | ||
51316059 MS |
6788 | #if defined (HAVE_LWPSTATUS_T) |
6789 | char * | |
6790 | elfcore_write_lwpstatus (abfd, buf, bufsiz, pid, cursig, gregs) | |
6791 | bfd *abfd; | |
6792 | char *buf; | |
6793 | int *bufsiz; | |
6794 | long pid; | |
6795 | int cursig; | |
6796 | void *gregs; | |
6797 | { | |
6798 | lwpstatus_t lwpstat; | |
6799 | char *note_name = "CORE"; | |
6800 | ||
6801 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
6802 | lwpstat.pr_lwpid = pid >> 16; | |
6803 | lwpstat.pr_cursig = cursig; | |
6804 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
6805 | memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); | |
6806 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
6807 | #if !defined(gregs) | |
6808 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
6809 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
6810 | #else | |
6811 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
6812 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
6813 | #endif | |
6814 | #endif | |
6815 | return elfcore_write_note (abfd, buf, bufsiz, note_name, | |
6816 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); | |
6817 | } | |
6818 | #endif /* HAVE_LWPSTATUS_T */ | |
6819 | ||
7c76fa91 MS |
6820 | #if defined (HAVE_PSTATUS_T) |
6821 | char * | |
6822 | elfcore_write_pstatus (abfd, buf, bufsiz, pid, cursig, gregs) | |
6823 | bfd *abfd; | |
6824 | char *buf; | |
6825 | int *bufsiz; | |
b87011e9 | 6826 | long pid; |
7c76fa91 MS |
6827 | int cursig; |
6828 | void *gregs; | |
6829 | { | |
6830 | pstatus_t pstat; | |
6831 | char *note_name = "CORE"; | |
6832 | ||
51316059 MS |
6833 | memset (&pstat, 0, sizeof (pstat)); |
6834 | pstat.pr_pid = pid & 0xffff; | |
6835 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
6836 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
6837 | return buf; | |
7c76fa91 MS |
6838 | } |
6839 | #endif /* HAVE_PSTATUS_T */ | |
6840 | ||
6841 | char * | |
6842 | elfcore_write_prfpreg (abfd, buf, bufsiz, fpregs, size) | |
6843 | bfd *abfd; | |
6844 | char *buf; | |
6845 | int *bufsiz; | |
6846 | void *fpregs; | |
6847 | int size; | |
6848 | { | |
6849 | char *note_name = "CORE"; | |
6850 | return elfcore_write_note (abfd, buf, bufsiz, | |
6851 | note_name, NT_FPREGSET, fpregs, size); | |
6852 | } | |
6853 | ||
6854 | char * | |
6855 | elfcore_write_prxfpreg (abfd, buf, bufsiz, xfpregs, size) | |
6856 | bfd *abfd; | |
6857 | char *buf; | |
6858 | int *bufsiz; | |
6859 | void *xfpregs; | |
6860 | int size; | |
6861 | { | |
6862 | char *note_name = "LINUX"; | |
6863 | return elfcore_write_note (abfd, buf, bufsiz, | |
6864 | note_name, NT_PRXFPREG, xfpregs, size); | |
6865 | } | |
6866 | ||
252b5132 RH |
6867 | static boolean |
6868 | elfcore_read_notes (abfd, offset, size) | |
c044fabd | 6869 | bfd *abfd; |
dc810e39 AM |
6870 | file_ptr offset; |
6871 | bfd_size_type size; | |
252b5132 | 6872 | { |
c044fabd KH |
6873 | char *buf; |
6874 | char *p; | |
252b5132 RH |
6875 | |
6876 | if (size <= 0) | |
6877 | return true; | |
6878 | ||
dc810e39 | 6879 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) |
252b5132 RH |
6880 | return false; |
6881 | ||
dc810e39 | 6882 | buf = bfd_malloc (size); |
252b5132 RH |
6883 | if (buf == NULL) |
6884 | return false; | |
6885 | ||
dc810e39 | 6886 | if (bfd_bread (buf, size, abfd) != size) |
252b5132 RH |
6887 | { |
6888 | error: | |
6889 | free (buf); | |
6890 | return false; | |
6891 | } | |
6892 | ||
6893 | p = buf; | |
6894 | while (p < buf + size) | |
6895 | { | |
c044fabd KH |
6896 | /* FIXME: bad alignment assumption. */ |
6897 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |
252b5132 RH |
6898 | Elf_Internal_Note in; |
6899 | ||
dc810e39 | 6900 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 6901 | |
dc810e39 | 6902 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 RH |
6903 | in.namedata = xnp->name; |
6904 | ||
dc810e39 | 6905 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
252b5132 RH |
6906 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4); |
6907 | in.descpos = offset + (in.descdata - buf); | |
6908 | ||
50b2bdb7 AM |
6909 | if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0) |
6910 | { | |
6911 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |
6912 | goto error; | |
6913 | } | |
6914 | else | |
6915 | { | |
6916 | if (! elfcore_grok_note (abfd, &in)) | |
6917 | goto error; | |
6918 | } | |
252b5132 RH |
6919 | |
6920 | p = in.descdata + BFD_ALIGN (in.descsz, 4); | |
6921 | } | |
6922 | ||
6923 | free (buf); | |
6924 | return true; | |
6925 | } | |
98d8431c JB |
6926 | \f |
6927 | /* Providing external access to the ELF program header table. */ | |
6928 | ||
6929 | /* Return an upper bound on the number of bytes required to store a | |
6930 | copy of ABFD's program header table entries. Return -1 if an error | |
6931 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 6932 | |
98d8431c JB |
6933 | long |
6934 | bfd_get_elf_phdr_upper_bound (abfd) | |
6935 | bfd *abfd; | |
6936 | { | |
6937 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
6938 | { | |
6939 | bfd_set_error (bfd_error_wrong_format); | |
6940 | return -1; | |
6941 | } | |
6942 | ||
936e320b | 6943 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
6944 | } |
6945 | ||
98d8431c JB |
6946 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
6947 | will be stored as an array of Elf_Internal_Phdr structures, as | |
6948 | defined in include/elf/internal.h. To find out how large the | |
6949 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
6950 | ||
6951 | Return the number of program header table entries read, or -1 if an | |
6952 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 6953 | |
98d8431c JB |
6954 | int |
6955 | bfd_get_elf_phdrs (abfd, phdrs) | |
6956 | bfd *abfd; | |
6957 | void *phdrs; | |
6958 | { | |
6959 | int num_phdrs; | |
6960 | ||
6961 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
6962 | { | |
6963 | bfd_set_error (bfd_error_wrong_format); | |
6964 | return -1; | |
6965 | } | |
6966 | ||
6967 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
c044fabd | 6968 | memcpy (phdrs, elf_tdata (abfd)->phdr, |
98d8431c JB |
6969 | num_phdrs * sizeof (Elf_Internal_Phdr)); |
6970 | ||
6971 | return num_phdrs; | |
6972 | } | |
ae4221d7 L |
6973 | |
6974 | void | |
4e771d61 | 6975 | _bfd_elf_sprintf_vma (abfd, buf, value) |
cc55aec9 | 6976 | bfd *abfd ATTRIBUTE_UNUSED; |
ae4221d7 L |
6977 | char *buf; |
6978 | bfd_vma value; | |
6979 | { | |
d3b05f8d | 6980 | #ifdef BFD64 |
ae4221d7 L |
6981 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ |
6982 | ||
6983 | i_ehdrp = elf_elfheader (abfd); | |
6984 | if (i_ehdrp == NULL) | |
6985 | sprintf_vma (buf, value); | |
6986 | else | |
6987 | { | |
6988 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) | |
cc55aec9 | 6989 | { |
ae4221d7 | 6990 | #if BFD_HOST_64BIT_LONG |
cc55aec9 | 6991 | sprintf (buf, "%016lx", value); |
ae4221d7 | 6992 | #else |
cc55aec9 AM |
6993 | sprintf (buf, "%08lx%08lx", _bfd_int64_high (value), |
6994 | _bfd_int64_low (value)); | |
ae4221d7 | 6995 | #endif |
cc55aec9 | 6996 | } |
ae4221d7 L |
6997 | else |
6998 | sprintf (buf, "%08lx", (unsigned long) (value & 0xffffffff)); | |
6999 | } | |
d3b05f8d L |
7000 | #else |
7001 | sprintf_vma (buf, value); | |
7002 | #endif | |
ae4221d7 L |
7003 | } |
7004 | ||
7005 | void | |
4e771d61 | 7006 | _bfd_elf_fprintf_vma (abfd, stream, value) |
cc55aec9 | 7007 | bfd *abfd ATTRIBUTE_UNUSED; |
ae4221d7 L |
7008 | PTR stream; |
7009 | bfd_vma value; | |
7010 | { | |
d3b05f8d | 7011 | #ifdef BFD64 |
ae4221d7 L |
7012 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ |
7013 | ||
7014 | i_ehdrp = elf_elfheader (abfd); | |
7015 | if (i_ehdrp == NULL) | |
7016 | fprintf_vma ((FILE *) stream, value); | |
7017 | else | |
7018 | { | |
7019 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) | |
cc55aec9 | 7020 | { |
ae4221d7 | 7021 | #if BFD_HOST_64BIT_LONG |
cc55aec9 | 7022 | fprintf ((FILE *) stream, "%016lx", value); |
ae4221d7 | 7023 | #else |
cc55aec9 AM |
7024 | fprintf ((FILE *) stream, "%08lx%08lx", |
7025 | _bfd_int64_high (value), _bfd_int64_low (value)); | |
ae4221d7 | 7026 | #endif |
cc55aec9 | 7027 | } |
ae4221d7 L |
7028 | else |
7029 | fprintf ((FILE *) stream, "%08lx", | |
7030 | (unsigned long) (value & 0xffffffff)); | |
7031 | } | |
d3b05f8d L |
7032 | #else |
7033 | fprintf_vma ((FILE *) stream, value); | |
7034 | #endif | |
ae4221d7 | 7035 | } |
db6751f2 JJ |
7036 | |
7037 | enum elf_reloc_type_class | |
f51e552e AM |
7038 | _bfd_elf_reloc_type_class (rela) |
7039 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED; | |
db6751f2 JJ |
7040 | { |
7041 | return reloc_class_normal; | |
7042 | } | |
f8df10f4 JJ |
7043 | |
7044 | /* For RELA architectures, return what the relocation value for | |
7045 | relocation against a local symbol. */ | |
7046 | ||
7047 | bfd_vma | |
7048 | _bfd_elf_rela_local_sym (abfd, sym, sec, rel) | |
7049 | bfd *abfd; | |
7050 | Elf_Internal_Sym *sym; | |
7051 | asection *sec; | |
7052 | Elf_Internal_Rela *rel; | |
7053 | { | |
7054 | bfd_vma relocation; | |
7055 | ||
7056 | relocation = (sec->output_section->vma | |
7057 | + sec->output_offset | |
7058 | + sym->st_value); | |
7059 | if ((sec->flags & SEC_MERGE) | |
c629eae0 | 7060 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
65765700 | 7061 | && elf_section_data (sec)->sec_info_type == ELF_INFO_TYPE_MERGE) |
f8df10f4 JJ |
7062 | { |
7063 | asection *msec; | |
7064 | ||
7065 | msec = sec; | |
7066 | rel->r_addend = | |
7067 | _bfd_merged_section_offset (abfd, &msec, | |
65765700 | 7068 | elf_section_data (sec)->sec_info, |
f8df10f4 JJ |
7069 | sym->st_value + rel->r_addend, |
7070 | (bfd_vma) 0) | |
7071 | - relocation; | |
7072 | rel->r_addend += msec->output_section->vma + msec->output_offset; | |
7073 | } | |
7074 | return relocation; | |
7075 | } | |
c629eae0 JJ |
7076 | |
7077 | bfd_vma | |
7078 | _bfd_elf_rel_local_sym (abfd, sym, psec, addend) | |
7079 | bfd *abfd; | |
7080 | Elf_Internal_Sym *sym; | |
7081 | asection **psec; | |
7082 | bfd_vma addend; | |
7083 | { | |
7084 | asection *sec = *psec; | |
7085 | ||
65765700 | 7086 | if (elf_section_data (sec)->sec_info_type != ELF_INFO_TYPE_MERGE) |
c629eae0 JJ |
7087 | return sym->st_value + addend; |
7088 | ||
7089 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 7090 | elf_section_data (sec)->sec_info, |
c629eae0 JJ |
7091 | sym->st_value + addend, (bfd_vma) 0); |
7092 | } | |
7093 | ||
7094 | bfd_vma | |
7095 | _bfd_elf_section_offset (abfd, info, sec, offset) | |
7096 | bfd *abfd; | |
7097 | struct bfd_link_info *info; | |
7098 | asection *sec; | |
7099 | bfd_vma offset; | |
7100 | { | |
7101 | struct bfd_elf_section_data *sec_data; | |
7102 | ||
7103 | sec_data = elf_section_data (sec); | |
65765700 JJ |
7104 | switch (sec_data->sec_info_type) |
7105 | { | |
7106 | case ELF_INFO_TYPE_STABS: | |
7107 | return _bfd_stab_section_offset | |
7108 | (abfd, &elf_hash_table (info)->merge_info, sec, &sec_data->sec_info, | |
7109 | offset); | |
7110 | case ELF_INFO_TYPE_EH_FRAME: | |
7111 | return _bfd_elf_eh_frame_section_offset (abfd, sec, offset); | |
7112 | default: | |
7113 | return offset; | |
7114 | } | |
c629eae0 | 7115 | } |