File: | src/gnu/usr.bin/binutils/bfd/elf.c |
Warning: | line 3136, column 9 2nd function call argument is an uninitialized value |
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1 | /* ELF executable support for BFD. | |||
2 | ||||
3 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, | |||
4 | 2002, 2003, 2004 Free Software Foundation, Inc. | |||
5 | ||||
6 | This file is part of BFD, the Binary File Descriptor library. | |||
7 | ||||
8 | This program is free software; you can redistribute it and/or modify | |||
9 | it under the terms of the GNU General Public License as published by | |||
10 | the Free Software Foundation; either version 2 of the License, or | |||
11 | (at your option) any later version. | |||
12 | ||||
13 | This program is distributed in the hope that it will be useful, | |||
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
16 | GNU General Public License for more details. | |||
17 | ||||
18 | You should have received a copy of the GNU General Public License | |||
19 | along with this program; if not, write to the Free Software | |||
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |||
21 | ||||
22 | /* SECTION | |||
23 | ||||
24 | ELF backends | |||
25 | ||||
26 | BFD support for ELF formats is being worked on. | |||
27 | Currently, the best supported back ends are for sparc and i386 | |||
28 | (running svr4 or Solaris 2). | |||
29 | ||||
30 | Documentation of the internals of the support code still needs | |||
31 | to be written. The code is changing quickly enough that we | |||
32 | haven't bothered yet. */ | |||
33 | ||||
34 | /* For sparc64-cross-sparc32. */ | |||
35 | #define _SYSCALL32 | |||
36 | #include "bfd.h" | |||
37 | #include "sysdep.h" | |||
38 | #include "bfdlink.h" | |||
39 | #include "libbfd.h" | |||
40 | #define ARCH_SIZE0 0 | |||
41 | #include "elf-bfd.h" | |||
42 | #include "libiberty.h" | |||
43 | ||||
44 | static int elf_sort_sections (const void *, const void *); | |||
45 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); | |||
46 | static bfd_boolean prep_headers (bfd *); | |||
47 | static bfd_boolean swap_out_syms (bfd *, struct bfd_strtab_hash **, int) ; | |||
48 | static bfd_boolean elfcore_read_notes (bfd *, file_ptr, bfd_size_type) ; | |||
49 | ||||
50 | /* Swap version information in and out. The version information is | |||
51 | currently size independent. If that ever changes, this code will | |||
52 | need to move into elfcode.h. */ | |||
53 | ||||
54 | /* Swap in a Verdef structure. */ | |||
55 | ||||
56 | void | |||
57 | _bfd_elf_swap_verdef_in (bfd *abfd, | |||
58 | const Elf_External_Verdef *src, | |||
59 | Elf_Internal_Verdef *dst) | |||
60 | { | |||
61 | dst->vd_version = H_GET_16 (abfd, src->vd_version)((*((abfd)->xvec->bfd_h_getx16)) (src->vd_version)); | |||
62 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags)((*((abfd)->xvec->bfd_h_getx16)) (src->vd_flags)); | |||
63 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx)((*((abfd)->xvec->bfd_h_getx16)) (src->vd_ndx)); | |||
64 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt)((*((abfd)->xvec->bfd_h_getx16)) (src->vd_cnt)); | |||
65 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash)((*((abfd)->xvec->bfd_h_getx32)) (src->vd_hash)); | |||
66 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux)((*((abfd)->xvec->bfd_h_getx32)) (src->vd_aux)); | |||
67 | dst->vd_next = H_GET_32 (abfd, src->vd_next)((*((abfd)->xvec->bfd_h_getx32)) (src->vd_next)); | |||
68 | } | |||
69 | ||||
70 | /* Swap out a Verdef structure. */ | |||
71 | ||||
72 | void | |||
73 | _bfd_elf_swap_verdef_out (bfd *abfd, | |||
74 | const Elf_Internal_Verdef *src, | |||
75 | Elf_External_Verdef *dst) | |||
76 | { | |||
77 | H_PUT_16 (abfd, src->vd_version, dst->vd_version)((*((abfd)->xvec->bfd_h_putx16)) (src->vd_version, dst ->vd_version)); | |||
78 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags)((*((abfd)->xvec->bfd_h_putx16)) (src->vd_flags, dst ->vd_flags)); | |||
79 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx)((*((abfd)->xvec->bfd_h_putx16)) (src->vd_ndx, dst-> vd_ndx)); | |||
80 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt)((*((abfd)->xvec->bfd_h_putx16)) (src->vd_cnt, dst-> vd_cnt)); | |||
81 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash)((*((abfd)->xvec->bfd_h_putx32)) (src->vd_hash, dst-> vd_hash)); | |||
82 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux)((*((abfd)->xvec->bfd_h_putx32)) (src->vd_aux, dst-> vd_aux)); | |||
83 | H_PUT_32 (abfd, src->vd_next, dst->vd_next)((*((abfd)->xvec->bfd_h_putx32)) (src->vd_next, dst-> vd_next)); | |||
84 | } | |||
85 | ||||
86 | /* Swap in a Verdaux structure. */ | |||
87 | ||||
88 | void | |||
89 | _bfd_elf_swap_verdaux_in (bfd *abfd, | |||
90 | const Elf_External_Verdaux *src, | |||
91 | Elf_Internal_Verdaux *dst) | |||
92 | { | |||
93 | dst->vda_name = H_GET_32 (abfd, src->vda_name)((*((abfd)->xvec->bfd_h_getx32)) (src->vda_name)); | |||
94 | dst->vda_next = H_GET_32 (abfd, src->vda_next)((*((abfd)->xvec->bfd_h_getx32)) (src->vda_next)); | |||
95 | } | |||
96 | ||||
97 | /* Swap out a Verdaux structure. */ | |||
98 | ||||
99 | void | |||
100 | _bfd_elf_swap_verdaux_out (bfd *abfd, | |||
101 | const Elf_Internal_Verdaux *src, | |||
102 | Elf_External_Verdaux *dst) | |||
103 | { | |||
104 | H_PUT_32 (abfd, src->vda_name, dst->vda_name)((*((abfd)->xvec->bfd_h_putx32)) (src->vda_name, dst ->vda_name)); | |||
105 | H_PUT_32 (abfd, src->vda_next, dst->vda_next)((*((abfd)->xvec->bfd_h_putx32)) (src->vda_next, dst ->vda_next)); | |||
106 | } | |||
107 | ||||
108 | /* Swap in a Verneed structure. */ | |||
109 | ||||
110 | void | |||
111 | _bfd_elf_swap_verneed_in (bfd *abfd, | |||
112 | const Elf_External_Verneed *src, | |||
113 | Elf_Internal_Verneed *dst) | |||
114 | { | |||
115 | dst->vn_version = H_GET_16 (abfd, src->vn_version)((*((abfd)->xvec->bfd_h_getx16)) (src->vn_version)); | |||
116 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt)((*((abfd)->xvec->bfd_h_getx16)) (src->vn_cnt)); | |||
117 | dst->vn_file = H_GET_32 (abfd, src->vn_file)((*((abfd)->xvec->bfd_h_getx32)) (src->vn_file)); | |||
118 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux)((*((abfd)->xvec->bfd_h_getx32)) (src->vn_aux)); | |||
119 | dst->vn_next = H_GET_32 (abfd, src->vn_next)((*((abfd)->xvec->bfd_h_getx32)) (src->vn_next)); | |||
120 | } | |||
121 | ||||
122 | /* Swap out a Verneed structure. */ | |||
123 | ||||
124 | void | |||
125 | _bfd_elf_swap_verneed_out (bfd *abfd, | |||
126 | const Elf_Internal_Verneed *src, | |||
127 | Elf_External_Verneed *dst) | |||
128 | { | |||
129 | H_PUT_16 (abfd, src->vn_version, dst->vn_version)((*((abfd)->xvec->bfd_h_putx16)) (src->vn_version, dst ->vn_version)); | |||
130 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt)((*((abfd)->xvec->bfd_h_putx16)) (src->vn_cnt, dst-> vn_cnt)); | |||
131 | H_PUT_32 (abfd, src->vn_file, dst->vn_file)((*((abfd)->xvec->bfd_h_putx32)) (src->vn_file, dst-> vn_file)); | |||
132 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux)((*((abfd)->xvec->bfd_h_putx32)) (src->vn_aux, dst-> vn_aux)); | |||
133 | H_PUT_32 (abfd, src->vn_next, dst->vn_next)((*((abfd)->xvec->bfd_h_putx32)) (src->vn_next, dst-> vn_next)); | |||
134 | } | |||
135 | ||||
136 | /* Swap in a Vernaux structure. */ | |||
137 | ||||
138 | void | |||
139 | _bfd_elf_swap_vernaux_in (bfd *abfd, | |||
140 | const Elf_External_Vernaux *src, | |||
141 | Elf_Internal_Vernaux *dst) | |||
142 | { | |||
143 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash)((*((abfd)->xvec->bfd_h_getx32)) (src->vna_hash)); | |||
144 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags)((*((abfd)->xvec->bfd_h_getx16)) (src->vna_flags)); | |||
145 | dst->vna_other = H_GET_16 (abfd, src->vna_other)((*((abfd)->xvec->bfd_h_getx16)) (src->vna_other)); | |||
146 | dst->vna_name = H_GET_32 (abfd, src->vna_name)((*((abfd)->xvec->bfd_h_getx32)) (src->vna_name)); | |||
147 | dst->vna_next = H_GET_32 (abfd, src->vna_next)((*((abfd)->xvec->bfd_h_getx32)) (src->vna_next)); | |||
148 | } | |||
149 | ||||
150 | /* Swap out a Vernaux structure. */ | |||
151 | ||||
152 | void | |||
153 | _bfd_elf_swap_vernaux_out (bfd *abfd, | |||
154 | const Elf_Internal_Vernaux *src, | |||
155 | Elf_External_Vernaux *dst) | |||
156 | { | |||
157 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash)((*((abfd)->xvec->bfd_h_putx32)) (src->vna_hash, dst ->vna_hash)); | |||
158 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags)((*((abfd)->xvec->bfd_h_putx16)) (src->vna_flags, dst ->vna_flags)); | |||
159 | H_PUT_16 (abfd, src->vna_other, dst->vna_other)((*((abfd)->xvec->bfd_h_putx16)) (src->vna_other, dst ->vna_other)); | |||
160 | H_PUT_32 (abfd, src->vna_name, dst->vna_name)((*((abfd)->xvec->bfd_h_putx32)) (src->vna_name, dst ->vna_name)); | |||
161 | H_PUT_32 (abfd, src->vna_next, dst->vna_next)((*((abfd)->xvec->bfd_h_putx32)) (src->vna_next, dst ->vna_next)); | |||
162 | } | |||
163 | ||||
164 | /* Swap in a Versym structure. */ | |||
165 | ||||
166 | void | |||
167 | _bfd_elf_swap_versym_in (bfd *abfd, | |||
168 | const Elf_External_Versym *src, | |||
169 | Elf_Internal_Versym *dst) | |||
170 | { | |||
171 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers)((*((abfd)->xvec->bfd_h_getx16)) (src->vs_vers)); | |||
172 | } | |||
173 | ||||
174 | /* Swap out a Versym structure. */ | |||
175 | ||||
176 | void | |||
177 | _bfd_elf_swap_versym_out (bfd *abfd, | |||
178 | const Elf_Internal_Versym *src, | |||
179 | Elf_External_Versym *dst) | |||
180 | { | |||
181 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers)((*((abfd)->xvec->bfd_h_putx16)) (src->vs_vers, dst-> vs_vers)); | |||
182 | } | |||
183 | ||||
184 | /* Standard ELF hash function. Do not change this function; you will | |||
185 | cause invalid hash tables to be generated. */ | |||
186 | ||||
187 | unsigned long | |||
188 | bfd_elf_hash (const char *namearg) | |||
189 | { | |||
190 | const unsigned char *name = (const unsigned char *) namearg; | |||
191 | unsigned long h = 0; | |||
192 | unsigned long g; | |||
193 | int ch; | |||
194 | ||||
195 | while ((ch = *name++) != '\0') | |||
196 | { | |||
197 | h = (h << 4) + ch; | |||
198 | if ((g = (h & 0xf0000000)) != 0) | |||
199 | { | |||
200 | h ^= g >> 24; | |||
201 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |||
202 | this case and on some machines one insn instead of two. */ | |||
203 | h ^= g; | |||
204 | } | |||
205 | } | |||
206 | return h & 0xffffffff; | |||
207 | } | |||
208 | ||||
209 | /* Read a specified number of bytes at a specified offset in an ELF | |||
210 | file, into a newly allocated buffer, and return a pointer to the | |||
211 | buffer. */ | |||
212 | ||||
213 | static char * | |||
214 | elf_read (bfd *abfd, file_ptr offset, bfd_size_type size) | |||
215 | { | |||
216 | char *buf; | |||
217 | ||||
218 | if ((buf = bfd_alloc (abfd, size)) == NULL((void*)0)) | |||
219 | return NULL((void*)0); | |||
220 | if (bfd_seek (abfd, offset, SEEK_SET0) != 0) | |||
221 | return NULL((void*)0); | |||
222 | if (bfd_bread (buf, size, abfd) != size) | |||
223 | { | |||
224 | if (bfd_get_error () != bfd_error_system_call) | |||
225 | bfd_set_error (bfd_error_file_truncated); | |||
226 | return NULL((void*)0); | |||
227 | } | |||
228 | return buf; | |||
229 | } | |||
230 | ||||
231 | bfd_boolean | |||
232 | bfd_elf_mkobject (bfd *abfd) | |||
233 | { | |||
234 | /* This just does initialization. */ | |||
235 | /* coff_mkobject zalloc's space for tdata.coff_obj_data ... */ | |||
236 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data) = bfd_zalloc (abfd, sizeof (struct elf_obj_tdata)); | |||
237 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data) == 0) | |||
238 | return FALSE0; | |||
239 | /* Since everything is done at close time, do we need any | |||
240 | initialization? */ | |||
241 | ||||
242 | return TRUE1; | |||
243 | } | |||
244 | ||||
245 | bfd_boolean | |||
246 | bfd_elf_mkcorefile (bfd *abfd) | |||
247 | { | |||
248 | /* I think this can be done just like an object file. */ | |||
249 | return bfd_elf_mkobject (abfd); | |||
250 | } | |||
251 | ||||
252 | char * | |||
253 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) | |||
254 | { | |||
255 | Elf_Internal_Shdr **i_shdrp; | |||
256 | char *shstrtab = NULL((void*)0); | |||
257 | file_ptr offset; | |||
258 | bfd_size_type shstrtabsize; | |||
259 | ||||
260 | i_shdrp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr); | |||
261 | if (i_shdrp == 0 || i_shdrp[shindex] == 0) | |||
262 | return 0; | |||
263 | ||||
264 | shstrtab = (char *) i_shdrp[shindex]->contents; | |||
265 | if (shstrtab == NULL((void*)0)) | |||
266 | { | |||
267 | /* No cached one, attempt to read, and cache what we read. */ | |||
268 | offset = i_shdrp[shindex]->sh_offset; | |||
269 | shstrtabsize = i_shdrp[shindex]->sh_size; | |||
270 | shstrtab = elf_read (abfd, offset, shstrtabsize); | |||
271 | i_shdrp[shindex]->contents = shstrtab; | |||
272 | } | |||
273 | return shstrtab; | |||
274 | } | |||
275 | ||||
276 | char * | |||
277 | bfd_elf_string_from_elf_section (bfd *abfd, | |||
278 | unsigned int shindex, | |||
279 | unsigned int strindex) | |||
280 | { | |||
281 | Elf_Internal_Shdr *hdr; | |||
282 | ||||
283 | if (strindex == 0) | |||
284 | return ""; | |||
285 | ||||
286 | hdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex]; | |||
287 | ||||
288 | if (hdr->contents == NULL((void*)0) | |||
289 | && bfd_elf_get_str_section (abfd, shindex) == NULL((void*)0)) | |||
290 | return NULL((void*)0); | |||
291 | ||||
292 | if (strindex >= hdr->sh_size) | |||
293 | { | |||
294 | (*_bfd_error_handler) | |||
295 | (_("%s: invalid string offset %u >= %lu for section `%s'")("%s: invalid string offset %u >= %lu for section `%s'"), | |||
296 | bfd_archive_filename (abfd), strindex, (unsigned long) hdr->sh_size, | |||
297 | ((shindex == elf_elfheader(abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_shstrndx | |||
298 | && strindex == hdr->sh_name) | |||
299 | ? ".shstrtab" | |||
300 | : elf_string_from_elf_strtab (abfd, hdr->sh_name)bfd_elf_string_from_elf_section (abfd, (((abfd) -> tdata.elf_obj_data ) -> elf_header)->e_shstrndx, hdr->sh_name))); | |||
301 | return ""; | |||
302 | } | |||
303 | ||||
304 | return ((char *) hdr->contents) + strindex; | |||
305 | } | |||
306 | ||||
307 | /* Read and convert symbols to internal format. | |||
308 | SYMCOUNT specifies the number of symbols to read, starting from | |||
309 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |||
310 | are non-NULL, they are used to store the internal symbols, external | |||
311 | symbols, and symbol section index extensions, respectively. */ | |||
312 | ||||
313 | Elf_Internal_Sym * | |||
314 | bfd_elf_get_elf_syms (bfd *ibfd, | |||
315 | Elf_Internal_Shdr *symtab_hdr, | |||
316 | size_t symcount, | |||
317 | size_t symoffset, | |||
318 | Elf_Internal_Sym *intsym_buf, | |||
319 | void *extsym_buf, | |||
320 | Elf_External_Sym_Shndx *extshndx_buf) | |||
321 | { | |||
322 | Elf_Internal_Shdr *shndx_hdr; | |||
323 | void *alloc_ext; | |||
324 | const bfd_byte *esym; | |||
325 | Elf_External_Sym_Shndx *alloc_extshndx; | |||
326 | Elf_External_Sym_Shndx *shndx; | |||
327 | Elf_Internal_Sym *isym; | |||
328 | Elf_Internal_Sym *isymend; | |||
329 | const struct elf_backend_data *bed; | |||
330 | size_t extsym_size; | |||
331 | bfd_size_type amt; | |||
332 | file_ptr pos; | |||
333 | ||||
334 | if (symcount == 0) | |||
335 | return intsym_buf; | |||
336 | ||||
337 | /* Normal syms might have section extension entries. */ | |||
338 | shndx_hdr = NULL((void*)0); | |||
339 | if (symtab_hdr == &elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->symtab_hdr) | |||
340 | shndx_hdr = &elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->symtab_shndx_hdr; | |||
341 | ||||
342 | /* Read the symbols. */ | |||
343 | alloc_ext = NULL((void*)0); | |||
344 | alloc_extshndx = NULL((void*)0); | |||
345 | bed = get_elf_backend_data (ibfd)((const struct elf_backend_data *) (ibfd)->xvec->backend_data ); | |||
346 | extsym_size = bed->s->sizeof_sym; | |||
347 | amt = symcount * extsym_size; | |||
348 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; | |||
349 | if (extsym_buf == NULL((void*)0)) | |||
350 | { | |||
351 | alloc_ext = bfd_malloc (amt); | |||
352 | extsym_buf = alloc_ext; | |||
353 | } | |||
354 | if (extsym_buf == NULL((void*)0) | |||
355 | || bfd_seek (ibfd, pos, SEEK_SET0) != 0 | |||
356 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |||
357 | { | |||
358 | intsym_buf = NULL((void*)0); | |||
359 | goto out; | |||
360 | } | |||
361 | ||||
362 | if (shndx_hdr == NULL((void*)0) || shndx_hdr->sh_size == 0) | |||
363 | extshndx_buf = NULL((void*)0); | |||
364 | else | |||
365 | { | |||
366 | amt = symcount * sizeof (Elf_External_Sym_Shndx); | |||
367 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); | |||
368 | if (extshndx_buf == NULL((void*)0)) | |||
369 | { | |||
370 | alloc_extshndx = bfd_malloc (amt); | |||
371 | extshndx_buf = alloc_extshndx; | |||
372 | } | |||
373 | if (extshndx_buf == NULL((void*)0) | |||
374 | || bfd_seek (ibfd, pos, SEEK_SET0) != 0 | |||
375 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |||
376 | { | |||
377 | intsym_buf = NULL((void*)0); | |||
378 | goto out; | |||
379 | } | |||
380 | } | |||
381 | ||||
382 | if (intsym_buf == NULL((void*)0)) | |||
383 | { | |||
384 | bfd_size_type amt = symcount * sizeof (Elf_Internal_Sym); | |||
385 | intsym_buf = bfd_malloc (amt); | |||
386 | if (intsym_buf == NULL((void*)0)) | |||
387 | goto out; | |||
388 | } | |||
389 | ||||
390 | /* Convert the symbols to internal form. */ | |||
391 | isymend = intsym_buf + symcount; | |||
392 | for (esym = extsym_buf, isym = intsym_buf, shndx = extshndx_buf; | |||
393 | isym < isymend; | |||
394 | esym += extsym_size, isym++, shndx = shndx != NULL((void*)0) ? shndx + 1 : NULL((void*)0)) | |||
395 | (*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym); | |||
396 | ||||
397 | out: | |||
398 | if (alloc_ext != NULL((void*)0)) | |||
399 | free (alloc_ext); | |||
400 | if (alloc_extshndx != NULL((void*)0)) | |||
401 | free (alloc_extshndx); | |||
402 | ||||
403 | return intsym_buf; | |||
404 | } | |||
405 | ||||
406 | /* Look up a symbol name. */ | |||
407 | const char * | |||
408 | bfd_elf_local_sym_name (bfd *abfd, Elf_Internal_Sym *isym) | |||
409 | { | |||
410 | unsigned int iname = isym->st_name; | |||
411 | unsigned int shindex = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr.sh_link; | |||
412 | if (iname == 0 && ELF_ST_TYPE (isym->st_info)((isym->st_info) & 0xF) == STT_SECTION3) | |||
413 | { | |||
414 | iname = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[isym->st_shndx]->sh_name; | |||
415 | shindex = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_shstrndx; | |||
416 | } | |||
417 | ||||
418 | return bfd_elf_string_from_elf_section (abfd, shindex, iname); | |||
419 | } | |||
420 | ||||
421 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP | |||
422 | sections. The first element is the flags, the rest are section | |||
423 | pointers. */ | |||
424 | ||||
425 | typedef union elf_internal_group { | |||
426 | Elf_Internal_Shdr *shdr; | |||
427 | unsigned int flags; | |||
428 | } Elf_Internal_Group; | |||
429 | ||||
430 | /* Return the name of the group signature symbol. Why isn't the | |||
431 | signature just a string? */ | |||
432 | ||||
433 | static const char * | |||
434 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) | |||
435 | { | |||
436 | Elf_Internal_Shdr *hdr; | |||
437 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |||
438 | Elf_External_Sym_Shndx eshndx; | |||
439 | Elf_Internal_Sym isym; | |||
440 | ||||
441 | /* First we need to ensure the symbol table is available. */ | |||
442 | if (! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |||
443 | return NULL((void*)0); | |||
444 | ||||
445 | /* Go read the symbol. */ | |||
446 | hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr; | |||
447 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, | |||
448 | &isym, esym, &eshndx) == NULL((void*)0)) | |||
449 | return NULL((void*)0); | |||
450 | ||||
451 | return bfd_elf_local_sym_name (abfd, &isym); | |||
452 | } | |||
453 | ||||
454 | /* Set next_in_group list pointer, and group name for NEWSECT. */ | |||
455 | ||||
456 | static bfd_boolean | |||
457 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) | |||
458 | { | |||
459 | unsigned int num_group = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->num_group; | |||
460 | ||||
461 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |||
462 | is set to -1 if there are no SHT_GROUP sections. */ | |||
463 | if (num_group == 0) | |||
464 | { | |||
465 | unsigned int i, shnum; | |||
466 | ||||
467 | /* First count the number of groups. If we have a SHT_GROUP | |||
468 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |||
469 | shnum = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
470 | num_group = 0; | |||
471 | for (i = 0; i < shnum; i++) | |||
472 | { | |||
473 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[i]; | |||
474 | if (shdr->sh_type == SHT_GROUP17 && shdr->sh_size >= 8) | |||
475 | num_group += 1; | |||
476 | } | |||
477 | ||||
478 | if (num_group == 0) | |||
479 | num_group = (unsigned) -1; | |||
480 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->num_group = num_group; | |||
481 | ||||
482 | if (num_group > 0) | |||
483 | { | |||
484 | /* We keep a list of elf section headers for group sections, | |||
485 | so we can find them quickly. */ | |||
486 | bfd_size_type amt = num_group * sizeof (Elf_Internal_Shdr *); | |||
487 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->group_sect_ptr = bfd_alloc (abfd, amt); | |||
488 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->group_sect_ptr == NULL((void*)0)) | |||
489 | return FALSE0; | |||
490 | ||||
491 | num_group = 0; | |||
492 | for (i = 0; i < shnum; i++) | |||
493 | { | |||
494 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[i]; | |||
495 | if (shdr->sh_type == SHT_GROUP17 && shdr->sh_size >= 8) | |||
496 | { | |||
497 | unsigned char *src; | |||
498 | Elf_Internal_Group *dest; | |||
499 | ||||
500 | /* Add to list of sections. */ | |||
501 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->group_sect_ptr[num_group] = shdr; | |||
502 | num_group += 1; | |||
503 | ||||
504 | /* Read the raw contents. */ | |||
505 | BFD_ASSERT (sizeof (*dest) >= 4){ if (!(sizeof (*dest) >= 4)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,505); }; | |||
506 | amt = shdr->sh_size * sizeof (*dest) / 4; | |||
507 | shdr->contents = bfd_alloc (abfd, amt); | |||
508 | if (shdr->contents == NULL((void*)0) | |||
509 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET0) != 0 | |||
510 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) | |||
511 | != shdr->sh_size)) | |||
512 | return FALSE0; | |||
513 | ||||
514 | /* Translate raw contents, a flag word followed by an | |||
515 | array of elf section indices all in target byte order, | |||
516 | to the flag word followed by an array of elf section | |||
517 | pointers. */ | |||
518 | src = shdr->contents + shdr->sh_size; | |||
519 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |||
520 | while (1) | |||
521 | { | |||
522 | unsigned int idx; | |||
523 | ||||
524 | src -= 4; | |||
525 | --dest; | |||
526 | idx = H_GET_32 (abfd, src)((*((abfd)->xvec->bfd_h_getx32)) (src)); | |||
527 | if (src == shdr->contents) | |||
528 | { | |||
529 | dest->flags = idx; | |||
530 | if (shdr->bfd_section != NULL((void*)0) && (idx & GRP_COMDAT0x1)) | |||
531 | shdr->bfd_section->flags | |||
532 | |= SEC_LINK_ONCE0x100000 | SEC_LINK_DUPLICATES_DISCARD0x0; | |||
533 | break; | |||
534 | } | |||
535 | if (idx >= shnum) | |||
536 | { | |||
537 | ((*_bfd_error_handler) | |||
538 | (_("%s: invalid SHT_GROUP entry")("%s: invalid SHT_GROUP entry"), | |||
539 | bfd_archive_filename (abfd))); | |||
540 | idx = 0; | |||
541 | } | |||
542 | dest->shdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[idx]; | |||
543 | } | |||
544 | } | |||
545 | } | |||
546 | } | |||
547 | } | |||
548 | ||||
549 | if (num_group != (unsigned) -1) | |||
550 | { | |||
551 | unsigned int i; | |||
552 | ||||
553 | for (i = 0; i < num_group; i++) | |||
554 | { | |||
555 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->group_sect_ptr[i]; | |||
556 | Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents; | |||
557 | unsigned int n_elt = shdr->sh_size / 4; | |||
558 | ||||
559 | /* Look through this group's sections to see if current | |||
560 | section is a member. */ | |||
561 | while (--n_elt != 0) | |||
562 | if ((++idx)->shdr == hdr) | |||
563 | { | |||
564 | asection *s = NULL((void*)0); | |||
565 | ||||
566 | /* We are a member of this group. Go looking through | |||
567 | other members to see if any others are linked via | |||
568 | next_in_group. */ | |||
569 | idx = (Elf_Internal_Group *) shdr->contents; | |||
570 | n_elt = shdr->sh_size / 4; | |||
571 | while (--n_elt != 0) | |||
572 | if ((s = (++idx)->shdr->bfd_section) != NULL((void*)0) | |||
573 | && elf_next_in_group (s)(((struct bfd_elf_section_data*)s->used_by_bfd)->next_in_group ) != NULL((void*)0)) | |||
574 | break; | |||
575 | if (n_elt != 0) | |||
576 | { | |||
577 | /* Snarf the group name from other member, and | |||
578 | insert current section in circular list. */ | |||
579 | elf_group_name (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> group.name) = elf_group_name (s)(((struct bfd_elf_section_data*)s->used_by_bfd)->group. name); | |||
580 | elf_next_in_group (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> next_in_group) = elf_next_in_group (s)(((struct bfd_elf_section_data*)s->used_by_bfd)->next_in_group ); | |||
581 | elf_next_in_group (s)(((struct bfd_elf_section_data*)s->used_by_bfd)->next_in_group ) = newsect; | |||
582 | } | |||
583 | else | |||
584 | { | |||
585 | const char *gname; | |||
586 | ||||
587 | gname = group_signature (abfd, shdr); | |||
588 | if (gname == NULL((void*)0)) | |||
589 | return FALSE0; | |||
590 | elf_group_name (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> group.name) = gname; | |||
591 | ||||
592 | /* Start a circular list with one element. */ | |||
593 | elf_next_in_group (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> next_in_group) = newsect; | |||
594 | } | |||
595 | ||||
596 | /* If the group section has been created, point to the | |||
597 | new member. */ | |||
598 | if (shdr->bfd_section != NULL((void*)0)) | |||
599 | elf_next_in_group (shdr->bfd_section)(((struct bfd_elf_section_data*)shdr->bfd_section->used_by_bfd )->next_in_group) = newsect; | |||
600 | ||||
601 | i = num_group - 1; | |||
602 | break; | |||
603 | } | |||
604 | } | |||
605 | } | |||
606 | ||||
607 | if (elf_group_name (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> group.name) == NULL((void*)0)) | |||
608 | { | |||
609 | (*_bfd_error_handler) (_("%s: no group info for section %s")("%s: no group info for section %s"), | |||
610 | bfd_archive_filename (abfd), newsect->name); | |||
611 | } | |||
612 | return TRUE1; | |||
613 | } | |||
614 | ||||
615 | bfd_boolean | |||
616 | bfd_elf_discard_group (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), asection *group) | |||
617 | { | |||
618 | asection *first = elf_next_in_group (group)(((struct bfd_elf_section_data*)group->used_by_bfd)->next_in_group ); | |||
619 | asection *s = first; | |||
620 | ||||
621 | while (s != NULL((void*)0)) | |||
622 | { | |||
623 | s->output_section = bfd_abs_section_ptr((asection *) &bfd_abs_section); | |||
624 | s = elf_next_in_group (s)(((struct bfd_elf_section_data*)s->used_by_bfd)->next_in_group ); | |||
625 | /* These lists are circular. */ | |||
626 | if (s == first) | |||
627 | break; | |||
628 | } | |||
629 | return TRUE1; | |||
630 | } | |||
631 | ||||
632 | /* Make a BFD section from an ELF section. We store a pointer to the | |||
633 | BFD section in the bfd_section field of the header. */ | |||
634 | ||||
635 | bfd_boolean | |||
636 | _bfd_elf_make_section_from_shdr (bfd *abfd, | |||
637 | Elf_Internal_Shdr *hdr, | |||
638 | const char *name) | |||
639 | { | |||
640 | asection *newsect; | |||
641 | flagword flags; | |||
642 | const struct elf_backend_data *bed; | |||
643 | ||||
644 | if (hdr->bfd_section != NULL((void*)0)) | |||
645 | { | |||
646 | BFD_ASSERT (strcmp (name,{ if (!(strcmp (name, ((hdr->bfd_section)->name + 0)) == 0)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c",647 ); } | |||
647 | bfd_get_section_name (abfd, hdr->bfd_section)) == 0){ if (!(strcmp (name, ((hdr->bfd_section)->name + 0)) == 0)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c",647 ); }; | |||
648 | return TRUE1; | |||
649 | } | |||
650 | ||||
651 | newsect = bfd_make_section_anyway (abfd, name); | |||
652 | if (newsect == NULL((void*)0)) | |||
653 | return FALSE0; | |||
654 | ||||
655 | /* Always use the real type/flags. */ | |||
656 | elf_section_type (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> this_hdr.sh_type) = hdr->sh_type; | |||
657 | elf_section_flags (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> this_hdr.sh_flags) = hdr->sh_flags; | |||
658 | ||||
659 | newsect->filepos = hdr->sh_offset; | |||
660 | ||||
661 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr)(((newsect)->vma = (newsect)->lma = (hdr->sh_addr)), ((newsect)->user_set_vma = 1), 1) | |||
662 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |||
663 | || ! bfd_set_section_alignment (abfd, newsect,(((newsect)->alignment_power = (bfd_log2 ((bfd_vma) hdr-> sh_addralign))),1) | |||
664 | bfd_log2 ((bfd_vma) hdr->sh_addralign))(((newsect)->alignment_power = (bfd_log2 ((bfd_vma) hdr-> sh_addralign))),1)) | |||
665 | return FALSE0; | |||
666 | ||||
667 | flags = SEC_NO_FLAGS0x000; | |||
668 | if (hdr->sh_type != SHT_NOBITS8) | |||
669 | flags |= SEC_HAS_CONTENTS0x200; | |||
670 | if (hdr->sh_type == SHT_GROUP17) | |||
671 | flags |= SEC_GROUP0x80000000 | SEC_EXCLUDE0x40000; | |||
672 | if ((hdr->sh_flags & SHF_ALLOC(1 << 1)) != 0) | |||
673 | { | |||
674 | flags |= SEC_ALLOC0x001; | |||
675 | if (hdr->sh_type != SHT_NOBITS8) | |||
676 | flags |= SEC_LOAD0x002; | |||
677 | } | |||
678 | if ((hdr->sh_flags & SHF_WRITE(1 << 0)) == 0) | |||
679 | flags |= SEC_READONLY0x010; | |||
680 | if ((hdr->sh_flags & SHF_EXECINSTR(1 << 2)) != 0) | |||
681 | flags |= SEC_CODE0x020; | |||
682 | else if ((flags & SEC_LOAD0x002) != 0) | |||
683 | flags |= SEC_DATA0x040; | |||
684 | if ((hdr->sh_flags & SHF_MERGE(1 << 4)) != 0) | |||
685 | { | |||
686 | flags |= SEC_MERGE0x20000000; | |||
687 | newsect->entsize = hdr->sh_entsize; | |||
688 | if ((hdr->sh_flags & SHF_STRINGS(1 << 5)) != 0) | |||
689 | flags |= SEC_STRINGS0x40000000; | |||
690 | } | |||
691 | if (hdr->sh_flags & SHF_GROUP(1 << 9)) | |||
692 | if (!setup_group (abfd, hdr, newsect)) | |||
693 | return FALSE0; | |||
694 | if ((hdr->sh_flags & SHF_TLS(1 << 10)) != 0) | |||
695 | flags |= SEC_THREAD_LOCAL0x1000; | |||
696 | ||||
697 | /* The debugging sections appear to be recognized only by name, not | |||
698 | any sort of flag. */ | |||
699 | { | |||
700 | static const char *debug_sec_names [] = | |||
701 | { | |||
702 | ".debug", | |||
703 | ".gnu.linkonce.wi.", | |||
704 | ".line", | |||
705 | ".stab" | |||
706 | }; | |||
707 | int i; | |||
708 | ||||
709 | for (i = ARRAY_SIZE (debug_sec_names)(sizeof (debug_sec_names) / sizeof ((debug_sec_names)[0])); i--;) | |||
710 | if (strncmp (name, debug_sec_names[i], strlen (debug_sec_names[i])) == 0) | |||
711 | break; | |||
712 | ||||
713 | if (i >= 0) | |||
714 | flags |= SEC_DEBUGGING0x10000; | |||
715 | } | |||
716 | ||||
717 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |||
718 | only link a single copy of the section. This is used to support | |||
719 | g++. g++ will emit each template expansion in its own section. | |||
720 | The symbols will be defined as weak, so that multiple definitions | |||
721 | are permitted. The GNU linker extension is to actually discard | |||
722 | all but one of the sections. */ | |||
723 | if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0 | |||
724 | && elf_next_in_group (newsect)(((struct bfd_elf_section_data*)newsect->used_by_bfd)-> next_in_group) == NULL((void*)0)) | |||
725 | flags |= SEC_LINK_ONCE0x100000 | SEC_LINK_DUPLICATES_DISCARD0x0; | |||
726 | ||||
727 | bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
728 | if (bed->elf_backend_section_flags) | |||
729 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |||
730 | return FALSE0; | |||
731 | ||||
732 | if (! bfd_set_section_flags (abfd, newsect, flags)) | |||
733 | return FALSE0; | |||
734 | ||||
735 | if ((flags & SEC_ALLOC0x001) != 0) | |||
736 | { | |||
737 | Elf_Internal_Phdr *phdr; | |||
738 | unsigned int i; | |||
739 | ||||
740 | /* Look through the phdrs to see if we need to adjust the lma. | |||
741 | If all the p_paddr fields are zero, we ignore them, since | |||
742 | some ELF linkers produce such output. */ | |||
743 | phdr = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->phdr; | |||
744 | for (i = 0; i < elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum; i++, phdr++) | |||
745 | { | |||
746 | if (phdr->p_paddr != 0) | |||
747 | break; | |||
748 | } | |||
749 | if (i < elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum) | |||
750 | { | |||
751 | phdr = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->phdr; | |||
752 | for (i = 0; i < elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum; i++, phdr++) | |||
753 | { | |||
754 | /* This section is part of this segment if its file | |||
755 | offset plus size lies within the segment's memory | |||
756 | span and, if the section is loaded, the extent of the | |||
757 | loaded data lies within the extent of the segment. | |||
758 | ||||
759 | Note - we used to check the p_paddr field as well, and | |||
760 | refuse to set the LMA if it was 0. This is wrong | |||
761 | though, as a perfectly valid initialised segment can | |||
762 | have a p_paddr of zero. Some architectures, eg ARM, | |||
763 | place special significance on the address 0 and | |||
764 | executables need to be able to have a segment which | |||
765 | covers this address. */ | |||
766 | if (phdr->p_type == PT_LOAD1 | |||
767 | && (bfd_vma) hdr->sh_offset >= phdr->p_offset | |||
768 | && (hdr->sh_offset + hdr->sh_size | |||
769 | <= phdr->p_offset + phdr->p_memsz) | |||
770 | && ((flags & SEC_LOAD0x002) == 0 | |||
771 | || (hdr->sh_offset + hdr->sh_size | |||
772 | <= phdr->p_offset + phdr->p_filesz))) | |||
773 | { | |||
774 | if ((flags & SEC_LOAD0x002) == 0) | |||
775 | newsect->lma = (phdr->p_paddr | |||
776 | + hdr->sh_addr - phdr->p_vaddr); | |||
777 | else | |||
778 | /* We used to use the same adjustment for SEC_LOAD | |||
779 | sections, but that doesn't work if the segment | |||
780 | is packed with code from multiple VMAs. | |||
781 | Instead we calculate the section LMA based on | |||
782 | the segment LMA. It is assumed that the | |||
783 | segment will contain sections with contiguous | |||
784 | LMAs, even if the VMAs are not. */ | |||
785 | newsect->lma = (phdr->p_paddr | |||
786 | + hdr->sh_offset - phdr->p_offset); | |||
787 | ||||
788 | /* With contiguous segments, we can't tell from file | |||
789 | offsets whether a section with zero size should | |||
790 | be placed at the end of one segment or the | |||
791 | beginning of the next. Decide based on vaddr. */ | |||
792 | if (hdr->sh_addr >= phdr->p_vaddr | |||
793 | && (hdr->sh_addr + hdr->sh_size | |||
794 | <= phdr->p_vaddr + phdr->p_memsz)) | |||
795 | break; | |||
796 | } | |||
797 | } | |||
798 | } | |||
799 | } | |||
800 | ||||
801 | hdr->bfd_section = newsect; | |||
802 | elf_section_data (newsect)((struct bfd_elf_section_data*)newsect->used_by_bfd)->this_hdr = *hdr; | |||
803 | ||||
804 | return TRUE1; | |||
805 | } | |||
806 | ||||
807 | /* | |||
808 | INTERNAL_FUNCTION | |||
809 | bfd_elf_find_section | |||
810 | ||||
811 | SYNOPSIS | |||
812 | struct elf_internal_shdr *bfd_elf_find_section (bfd *abfd, char *name); | |||
813 | ||||
814 | DESCRIPTION | |||
815 | Helper functions for GDB to locate the string tables. | |||
816 | Since BFD hides string tables from callers, GDB needs to use an | |||
817 | internal hook to find them. Sun's .stabstr, in particular, | |||
818 | isn't even pointed to by the .stab section, so ordinary | |||
819 | mechanisms wouldn't work to find it, even if we had some. | |||
820 | */ | |||
821 | ||||
822 | struct elf_internal_shdr * | |||
823 | bfd_elf_find_section (bfd *abfd, char *name) | |||
824 | { | |||
825 | Elf_Internal_Shdr **i_shdrp; | |||
826 | char *shstrtab; | |||
827 | unsigned int max; | |||
828 | unsigned int i; | |||
829 | ||||
830 | i_shdrp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr); | |||
831 | if (i_shdrp != NULL((void*)0)) | |||
832 | { | |||
833 | shstrtab = bfd_elf_get_str_section (abfd, | |||
834 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_shstrndx); | |||
835 | if (shstrtab != NULL((void*)0)) | |||
836 | { | |||
837 | max = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
838 | for (i = 1; i < max; i++) | |||
839 | if (!strcmp (&shstrtab[i_shdrp[i]->sh_name], name)) | |||
840 | return i_shdrp[i]; | |||
841 | } | |||
842 | } | |||
843 | return 0; | |||
844 | } | |||
845 | ||||
846 | const char *const bfd_elf_section_type_names[] = { | |||
847 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", | |||
848 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |||
849 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |||
850 | }; | |||
851 | ||||
852 | /* ELF relocs are against symbols. If we are producing relocatable | |||
853 | output, and the reloc is against an external symbol, and nothing | |||
854 | has given us any additional addend, the resulting reloc will also | |||
855 | be against the same symbol. In such a case, we don't want to | |||
856 | change anything about the way the reloc is handled, since it will | |||
857 | all be done at final link time. Rather than put special case code | |||
858 | into bfd_perform_relocation, all the reloc types use this howto | |||
859 | function. It just short circuits the reloc if producing | |||
860 | relocatable output against an external symbol. */ | |||
861 | ||||
862 | bfd_reloc_status_type | |||
863 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
864 | arelent *reloc_entry, | |||
865 | asymbol *symbol, | |||
866 | void *data ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
867 | asection *input_section, | |||
868 | bfd *output_bfd, | |||
869 | char **error_message ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | |||
870 | { | |||
871 | if (output_bfd != NULL((void*)0) | |||
872 | && (symbol->flags & BSF_SECTION_SYM0x100) == 0 | |||
873 | && (! reloc_entry->howto->partial_inplace | |||
874 | || reloc_entry->addend == 0)) | |||
875 | { | |||
876 | reloc_entry->address += input_section->output_offset; | |||
877 | return bfd_reloc_ok; | |||
878 | } | |||
879 | ||||
880 | return bfd_reloc_continue; | |||
881 | } | |||
882 | ||||
883 | /* Make sure sec_info_type is cleared if sec_info is cleared too. */ | |||
884 | ||||
885 | static void | |||
886 | merge_sections_remove_hook (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
887 | asection *sec) | |||
888 | { | |||
889 | BFD_ASSERT (sec->sec_info_type == ELF_INFO_TYPE_MERGE){ if (!(sec->sec_info_type == 2)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,889); }; | |||
890 | sec->sec_info_type = ELF_INFO_TYPE_NONE0; | |||
891 | } | |||
892 | ||||
893 | /* Finish SHF_MERGE section merging. */ | |||
894 | ||||
895 | bfd_boolean | |||
896 | _bfd_elf_merge_sections (bfd *abfd, struct bfd_link_info *info) | |||
897 | { | |||
898 | if (!is_elf_hash_table (info->hash)(((struct bfd_link_hash_table *) (info->hash))->type == bfd_link_elf_hash_table)) | |||
899 | return FALSE0; | |||
900 | if (elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->merge_info) | |||
901 | _bfd_merge_sections (abfd, elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->merge_info, | |||
902 | merge_sections_remove_hook); | |||
903 | return TRUE1; | |||
904 | } | |||
905 | ||||
906 | void | |||
907 | _bfd_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |||
908 | { | |||
909 | sec->output_section = bfd_abs_section_ptr((asection *) &bfd_abs_section); | |||
910 | sec->output_offset = sec->vma; | |||
911 | if (!is_elf_hash_table (info->hash)(((struct bfd_link_hash_table *) (info->hash))->type == bfd_link_elf_hash_table)) | |||
912 | return; | |||
913 | ||||
914 | sec->sec_info_type = ELF_INFO_TYPE_JUST_SYMS4; | |||
915 | } | |||
916 | ||||
917 | /* Copy the program header and other data from one object module to | |||
918 | another. */ | |||
919 | ||||
920 | bfd_boolean | |||
921 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |||
922 | { | |||
923 | if (bfd_get_flavour (ibfd)((ibfd)->xvec->flavour) != bfd_target_elf_flavour | |||
924 | || bfd_get_flavour (obfd)((obfd)->xvec->flavour) != bfd_target_elf_flavour) | |||
925 | return TRUE1; | |||
926 | ||||
927 | BFD_ASSERT (!elf_flags_init (obfd){ if (!(!(((obfd) -> tdata.elf_obj_data) -> flags_init) || ((((obfd) -> tdata.elf_obj_data) -> elf_header)-> e_flags == (((ibfd) -> tdata.elf_obj_data) -> elf_header )->e_flags))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,929); } | |||
928 | || (elf_elfheader (obfd)->e_flags{ if (!(!(((obfd) -> tdata.elf_obj_data) -> flags_init) || ((((obfd) -> tdata.elf_obj_data) -> elf_header)-> e_flags == (((ibfd) -> tdata.elf_obj_data) -> elf_header )->e_flags))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,929); } | |||
929 | == elf_elfheader (ibfd)->e_flags)){ if (!(!(((obfd) -> tdata.elf_obj_data) -> flags_init) || ((((obfd) -> tdata.elf_obj_data) -> elf_header)-> e_flags == (((ibfd) -> tdata.elf_obj_data) -> elf_header )->e_flags))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,929); }; | |||
930 | ||||
931 | elf_gp (obfd)(((obfd) -> tdata.elf_obj_data) -> gp) = elf_gp (ibfd)(((ibfd) -> tdata.elf_obj_data) -> gp); | |||
932 | elf_elfheader (obfd)(((obfd) -> tdata.elf_obj_data) -> elf_header)->e_flags = elf_elfheader (ibfd)(((ibfd) -> tdata.elf_obj_data) -> elf_header)->e_flags; | |||
933 | elf_flags_init (obfd)(((obfd) -> tdata.elf_obj_data) -> flags_init) = TRUE1; | |||
934 | return TRUE1; | |||
935 | } | |||
936 | ||||
937 | /* Print out the program headers. */ | |||
938 | ||||
939 | bfd_boolean | |||
940 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) | |||
941 | { | |||
942 | FILE *f = farg; | |||
943 | Elf_Internal_Phdr *p; | |||
944 | asection *s; | |||
945 | bfd_byte *dynbuf = NULL((void*)0); | |||
946 | ||||
947 | p = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->phdr; | |||
948 | if (p != NULL((void*)0)) | |||
949 | { | |||
950 | unsigned int i, c; | |||
951 | ||||
952 | fprintf (f, _("\nProgram Header:\n")("\nProgram Header:\n")); | |||
953 | c = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum; | |||
954 | for (i = 0; i < c; i++, p++) | |||
955 | { | |||
956 | const char *pt; | |||
957 | char buf[20]; | |||
958 | ||||
959 | switch (p->p_type) | |||
960 | { | |||
961 | case PT_NULL0: pt = "NULL"; break; | |||
962 | case PT_LOAD1: pt = "LOAD"; break; | |||
963 | case PT_DYNAMIC2: pt = "DYNAMIC"; break; | |||
964 | case PT_INTERP3: pt = "INTERP"; break; | |||
965 | case PT_NOTE4: pt = "NOTE"; break; | |||
966 | case PT_SHLIB5: pt = "SHLIB"; break; | |||
967 | case PT_PHDR6: pt = "PHDR"; break; | |||
968 | case PT_TLS7: pt = "TLS"; break; | |||
969 | case PT_GNU_EH_FRAME(0x60000000 + 0x474e550): pt = "EH_FRAME"; break; | |||
970 | case PT_GNU_STACK(0x60000000 + 0x474e551): pt = "STACK"; break; | |||
971 | case PT_OPENBSD_RANDOMIZE0x65a3dbe6: pt = "OPENBSD_RANDOMIZE"; break; | |||
972 | default: sprintf (buf, "0x%lx", p->p_type); pt = buf; break; | |||
973 | } | |||
974 | fprintf (f, "%8s off 0x", pt); | |||
975 | bfd_fprintf_vma (abfd, f, p->p_offset); | |||
976 | fprintf (f, " vaddr 0x"); | |||
977 | bfd_fprintf_vma (abfd, f, p->p_vaddr); | |||
978 | fprintf (f, " paddr 0x"); | |||
979 | bfd_fprintf_vma (abfd, f, p->p_paddr); | |||
980 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); | |||
981 | fprintf (f, " filesz 0x"); | |||
982 | bfd_fprintf_vma (abfd, f, p->p_filesz); | |||
983 | fprintf (f, " memsz 0x"); | |||
984 | bfd_fprintf_vma (abfd, f, p->p_memsz); | |||
985 | fprintf (f, " flags %c%c%c", | |||
986 | (p->p_flags & PF_R(1 << 2)) != 0 ? 'r' : '-', | |||
987 | (p->p_flags & PF_W(1 << 1)) != 0 ? 'w' : '-', | |||
988 | (p->p_flags & PF_X(1 << 0)) != 0 ? 'x' : '-'); | |||
989 | if ((p->p_flags &~ (unsigned) (PF_R(1 << 2) | PF_W(1 << 1) | PF_X(1 << 0))) != 0) | |||
990 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R(1 << 2) | PF_W(1 << 1) | PF_X(1 << 0))); | |||
991 | fprintf (f, "\n"); | |||
992 | } | |||
993 | } | |||
994 | ||||
995 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |||
996 | if (s != NULL((void*)0)) | |||
997 | { | |||
998 | int elfsec; | |||
999 | unsigned long shlink; | |||
1000 | bfd_byte *extdyn, *extdynend; | |||
1001 | size_t extdynsize; | |||
1002 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |||
1003 | ||||
1004 | fprintf (f, _("\nDynamic Section:\n")("\nDynamic Section:\n")); | |||
1005 | ||||
1006 | dynbuf = bfd_malloc (s->_raw_size); | |||
1007 | if (dynbuf == NULL((void*)0)) | |||
1008 | goto error_return; | |||
1009 | if (! bfd_get_section_contents (abfd, s, dynbuf, 0, s->_raw_size)) | |||
1010 | goto error_return; | |||
1011 | ||||
1012 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |||
1013 | if (elfsec == -1) | |||
1014 | goto error_return; | |||
1015 | shlink = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[elfsec]->sh_link; | |||
1016 | ||||
1017 | extdynsize = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->sizeof_dyn; | |||
1018 | swap_dyn_in = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->swap_dyn_in; | |||
1019 | ||||
1020 | extdyn = dynbuf; | |||
1021 | extdynend = extdyn + s->_raw_size; | |||
1022 | for (; extdyn < extdynend; extdyn += extdynsize) | |||
1023 | { | |||
1024 | Elf_Internal_Dyn dyn; | |||
1025 | const char *name; | |||
1026 | char ab[20]; | |||
1027 | bfd_boolean stringp; | |||
1028 | ||||
1029 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |||
1030 | ||||
1031 | if (dyn.d_tag == DT_NULL0) | |||
1032 | break; | |||
1033 | ||||
1034 | stringp = FALSE0; | |||
1035 | switch (dyn.d_tag) | |||
1036 | { | |||
1037 | default: | |||
1038 | sprintf (ab, "0x%lx", (unsigned long) dyn.d_tag); | |||
1039 | name = ab; | |||
1040 | break; | |||
1041 | ||||
1042 | case DT_NEEDED1: name = "NEEDED"; stringp = TRUE1; break; | |||
1043 | case DT_PLTRELSZ2: name = "PLTRELSZ"; break; | |||
1044 | case DT_PLTGOT3: name = "PLTGOT"; break; | |||
1045 | case DT_HASH4: name = "HASH"; break; | |||
1046 | case DT_STRTAB5: name = "STRTAB"; break; | |||
1047 | case DT_SYMTAB6: name = "SYMTAB"; break; | |||
1048 | case DT_RELA7: name = "RELA"; break; | |||
1049 | case DT_RELASZ8: name = "RELASZ"; break; | |||
1050 | case DT_RELAENT9: name = "RELAENT"; break; | |||
1051 | case DT_STRSZ10: name = "STRSZ"; break; | |||
1052 | case DT_SYMENT11: name = "SYMENT"; break; | |||
1053 | case DT_INIT12: name = "INIT"; break; | |||
1054 | case DT_FINI13: name = "FINI"; break; | |||
1055 | case DT_SONAME14: name = "SONAME"; stringp = TRUE1; break; | |||
1056 | case DT_RPATH15: name = "RPATH"; stringp = TRUE1; break; | |||
1057 | case DT_SYMBOLIC16: name = "SYMBOLIC"; break; | |||
1058 | case DT_REL17: name = "REL"; break; | |||
1059 | case DT_RELSZ18: name = "RELSZ"; break; | |||
1060 | case DT_RELENT19: name = "RELENT"; break; | |||
1061 | case DT_PLTREL20: name = "PLTREL"; break; | |||
1062 | case DT_DEBUG21: name = "DEBUG"; break; | |||
1063 | case DT_TEXTREL22: name = "TEXTREL"; break; | |||
1064 | case DT_JMPREL23: name = "JMPREL"; break; | |||
1065 | case DT_BIND_NOW24: name = "BIND_NOW"; break; | |||
1066 | case DT_INIT_ARRAY25: name = "INIT_ARRAY"; break; | |||
1067 | case DT_FINI_ARRAY26: name = "FINI_ARRAY"; break; | |||
1068 | case DT_INIT_ARRAYSZ27: name = "INIT_ARRAYSZ"; break; | |||
1069 | case DT_FINI_ARRAYSZ28: name = "FINI_ARRAYSZ"; break; | |||
1070 | case DT_RUNPATH29: name = "RUNPATH"; stringp = TRUE1; break; | |||
1071 | case DT_FLAGS30: name = "FLAGS"; break; | |||
1072 | case DT_PREINIT_ARRAY32: name = "PREINIT_ARRAY"; break; | |||
1073 | case DT_PREINIT_ARRAYSZ33: name = "PREINIT_ARRAYSZ"; break; | |||
1074 | case DT_CHECKSUM0x6ffffdf8: name = "CHECKSUM"; break; | |||
1075 | case DT_PLTPADSZ0x6ffffdf9: name = "PLTPADSZ"; break; | |||
1076 | case DT_MOVEENT0x6ffffdfa: name = "MOVEENT"; break; | |||
1077 | case DT_MOVESZ0x6ffffdfb: name = "MOVESZ"; break; | |||
1078 | case DT_FEATURE0x6ffffdfc: name = "FEATURE"; break; | |||
1079 | case DT_POSFLAG_10x6ffffdfd: name = "POSFLAG_1"; break; | |||
1080 | case DT_SYMINSZ0x6ffffdfe: name = "SYMINSZ"; break; | |||
1081 | case DT_SYMINENT0x6ffffdff: name = "SYMINENT"; break; | |||
1082 | case DT_CONFIG0x6ffffefa: name = "CONFIG"; stringp = TRUE1; break; | |||
1083 | case DT_DEPAUDIT0x6ffffefb: name = "DEPAUDIT"; stringp = TRUE1; break; | |||
1084 | case DT_AUDIT0x6ffffefc: name = "AUDIT"; stringp = TRUE1; break; | |||
1085 | case DT_PLTPAD0x6ffffefd: name = "PLTPAD"; break; | |||
1086 | case DT_MOVETAB0x6ffffefe: name = "MOVETAB"; break; | |||
1087 | case DT_SYMINFO0x6ffffeff: name = "SYMINFO"; break; | |||
1088 | case DT_RELACOUNT0x6ffffff9: name = "RELACOUNT"; break; | |||
1089 | case DT_RELCOUNT0x6ffffffa: name = "RELCOUNT"; break; | |||
1090 | case DT_FLAGS_10x6ffffffb: name = "FLAGS_1"; break; | |||
1091 | case DT_VERSYM0x6ffffff0: name = "VERSYM"; break; | |||
1092 | case DT_VERDEF0x6ffffffc: name = "VERDEF"; break; | |||
1093 | case DT_VERDEFNUM0x6ffffffd: name = "VERDEFNUM"; break; | |||
1094 | case DT_VERNEED0x6ffffffe: name = "VERNEED"; break; | |||
1095 | case DT_VERNEEDNUM0x6fffffff: name = "VERNEEDNUM"; break; | |||
1096 | case DT_AUXILIARY0x7ffffffd: name = "AUXILIARY"; stringp = TRUE1; break; | |||
1097 | case DT_USED0x7ffffffe: name = "USED"; break; | |||
1098 | case DT_FILTER0x7fffffff: name = "FILTER"; stringp = TRUE1; break; | |||
1099 | } | |||
1100 | ||||
1101 | fprintf (f, " %-11s ", name); | |||
1102 | if (! stringp) | |||
1103 | fprintf (f, "0x%lx", (unsigned long) dyn.d_un.d_val); | |||
1104 | else | |||
1105 | { | |||
1106 | const char *string; | |||
1107 | unsigned int tagv = dyn.d_un.d_val; | |||
1108 | ||||
1109 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); | |||
1110 | if (string == NULL((void*)0)) | |||
1111 | goto error_return; | |||
1112 | fprintf (f, "%s", string); | |||
1113 | } | |||
1114 | fprintf (f, "\n"); | |||
1115 | } | |||
1116 | ||||
1117 | free (dynbuf); | |||
1118 | dynbuf = NULL((void*)0); | |||
1119 | } | |||
1120 | ||||
1121 | if ((elf_dynverdef (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverdef_section) != 0 && elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verdef == NULL((void*)0)) | |||
1122 | || (elf_dynverref (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverref_section) != 0 && elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verref == NULL((void*)0))) | |||
1123 | { | |||
1124 | if (! _bfd_elf_slurp_version_tables (abfd)) | |||
1125 | return FALSE0; | |||
1126 | } | |||
1127 | ||||
1128 | if (elf_dynverdef (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverdef_section) != 0) | |||
1129 | { | |||
1130 | Elf_Internal_Verdef *t; | |||
1131 | ||||
1132 | fprintf (f, _("\nVersion definitions:\n")("\nVersion definitions:\n")); | |||
1133 | for (t = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verdef; t != NULL((void*)0); t = t->vd_nextdef) | |||
1134 | { | |||
1135 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |||
1136 | t->vd_flags, t->vd_hash, t->vd_nodename); | |||
1137 | if (t->vd_auxptr->vda_nextptr != NULL((void*)0)) | |||
1138 | { | |||
1139 | Elf_Internal_Verdaux *a; | |||
1140 | ||||
1141 | fprintf (f, "\t"); | |||
1142 | for (a = t->vd_auxptr->vda_nextptr; | |||
1143 | a != NULL((void*)0); | |||
1144 | a = a->vda_nextptr) | |||
1145 | fprintf (f, "%s ", a->vda_nodename); | |||
1146 | fprintf (f, "\n"); | |||
1147 | } | |||
1148 | } | |||
1149 | } | |||
1150 | ||||
1151 | if (elf_dynverref (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverref_section) != 0) | |||
1152 | { | |||
1153 | Elf_Internal_Verneed *t; | |||
1154 | ||||
1155 | fprintf (f, _("\nVersion References:\n")("\nVersion References:\n")); | |||
1156 | for (t = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verref; t != NULL((void*)0); t = t->vn_nextref) | |||
1157 | { | |||
1158 | Elf_Internal_Vernaux *a; | |||
1159 | ||||
1160 | fprintf (f, _(" required from %s:\n")(" required from %s:\n"), t->vn_filename); | |||
1161 | for (a = t->vn_auxptr; a != NULL((void*)0); a = a->vna_nextptr) | |||
1162 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |||
1163 | a->vna_flags, a->vna_other, a->vna_nodename); | |||
1164 | } | |||
1165 | } | |||
1166 | ||||
1167 | return TRUE1; | |||
1168 | ||||
1169 | error_return: | |||
1170 | if (dynbuf != NULL((void*)0)) | |||
1171 | free (dynbuf); | |||
1172 | return FALSE0; | |||
1173 | } | |||
1174 | ||||
1175 | /* Display ELF-specific fields of a symbol. */ | |||
1176 | ||||
1177 | void | |||
1178 | bfd_elf_print_symbol (bfd *abfd, | |||
1179 | void *filep, | |||
1180 | asymbol *symbol, | |||
1181 | bfd_print_symbol_type how) | |||
1182 | { | |||
1183 | FILE *file = filep; | |||
1184 | switch (how) | |||
1185 | { | |||
1186 | case bfd_print_symbol_name: | |||
1187 | fprintf (file, "%s", symbol->name); | |||
1188 | break; | |||
1189 | case bfd_print_symbol_more: | |||
1190 | fprintf (file, "elf "); | |||
1191 | bfd_fprintf_vma (abfd, file, symbol->value); | |||
1192 | fprintf (file, " %lx", (long) symbol->flags); | |||
1193 | break; | |||
1194 | case bfd_print_symbol_all: | |||
1195 | { | |||
1196 | const char *section_name; | |||
1197 | const char *name = NULL((void*)0); | |||
1198 | const struct elf_backend_data *bed; | |||
1199 | unsigned char st_other; | |||
1200 | bfd_vma val; | |||
1201 | ||||
1202 | section_name = symbol->section ? symbol->section->name : "(*none*)"; | |||
1203 | ||||
1204 | bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
1205 | if (bed->elf_backend_print_symbol_all) | |||
1206 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); | |||
1207 | ||||
1208 | if (name == NULL((void*)0)) | |||
1209 | { | |||
1210 | name = symbol->name; | |||
1211 | bfd_print_symbol_vandf (abfd, file, symbol); | |||
1212 | } | |||
1213 | ||||
1214 | fprintf (file, " %s\t", section_name); | |||
1215 | /* Print the "other" value for a symbol. For common symbols, | |||
1216 | we've already printed the size; now print the alignment. | |||
1217 | For other symbols, we have no specified alignment, and | |||
1218 | we've printed the address; now print the size. */ | |||
1219 | if (bfd_is_com_section (symbol->section)(((symbol->section)->flags & 0x8000) != 0)) | |||
1220 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; | |||
1221 | else | |||
1222 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |||
1223 | bfd_fprintf_vma (abfd, file, val); | |||
1224 | ||||
1225 | /* If we have version information, print it. */ | |||
1226 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynversym_section != 0 | |||
1227 | && (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynverdef_section != 0 | |||
1228 | || elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynverref_section != 0)) | |||
1229 | { | |||
1230 | unsigned int vernum; | |||
1231 | const char *version_string; | |||
1232 | ||||
1233 | vernum = ((elf_symbol_type *) symbol)->version & VERSYM_VERSION0x7fff; | |||
1234 | ||||
1235 | if (vernum == 0) | |||
1236 | version_string = ""; | |||
1237 | else if (vernum == 1) | |||
1238 | version_string = "Base"; | |||
1239 | else if (vernum <= elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->cverdefs) | |||
1240 | version_string = | |||
1241 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verdef[vernum - 1].vd_nodename; | |||
1242 | else | |||
1243 | { | |||
1244 | Elf_Internal_Verneed *t; | |||
1245 | ||||
1246 | version_string = ""; | |||
1247 | for (t = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verref; | |||
1248 | t != NULL((void*)0); | |||
1249 | t = t->vn_nextref) | |||
1250 | { | |||
1251 | Elf_Internal_Vernaux *a; | |||
1252 | ||||
1253 | for (a = t->vn_auxptr; a != NULL((void*)0); a = a->vna_nextptr) | |||
1254 | { | |||
1255 | if (a->vna_other == vernum) | |||
1256 | { | |||
1257 | version_string = a->vna_nodename; | |||
1258 | break; | |||
1259 | } | |||
1260 | } | |||
1261 | } | |||
1262 | } | |||
1263 | ||||
1264 | if ((((elf_symbol_type *) symbol)->version & VERSYM_HIDDEN0x8000) == 0) | |||
1265 | fprintf (file, " %-11s", version_string); | |||
1266 | else | |||
1267 | { | |||
1268 | int i; | |||
1269 | ||||
1270 | fprintf (file, " (%s)", version_string); | |||
1271 | for (i = 10 - strlen (version_string); i > 0; --i) | |||
1272 | putc (' ', file)(!__isthreaded ? __sputc(' ', file) : (putc)(' ', file)); | |||
1273 | } | |||
1274 | } | |||
1275 | ||||
1276 | /* If the st_other field is not zero, print it. */ | |||
1277 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; | |||
1278 | ||||
1279 | switch (st_other) | |||
1280 | { | |||
1281 | case 0: break; | |||
1282 | case STV_INTERNAL1: fprintf (file, " .internal"); break; | |||
1283 | case STV_HIDDEN2: fprintf (file, " .hidden"); break; | |||
1284 | case STV_PROTECTED3: fprintf (file, " .protected"); break; | |||
1285 | default: | |||
1286 | /* Some other non-defined flags are also present, so print | |||
1287 | everything hex. */ | |||
1288 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |||
1289 | } | |||
1290 | ||||
1291 | fprintf (file, " %s", name); | |||
1292 | } | |||
1293 | break; | |||
1294 | } | |||
1295 | } | |||
1296 | ||||
1297 | /* Create an entry in an ELF linker hash table. */ | |||
1298 | ||||
1299 | struct bfd_hash_entry * | |||
1300 | _bfd_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |||
1301 | struct bfd_hash_table *table, | |||
1302 | const char *string) | |||
1303 | { | |||
1304 | /* Allocate the structure if it has not already been allocated by a | |||
1305 | subclass. */ | |||
1306 | if (entry == NULL((void*)0)) | |||
1307 | { | |||
1308 | entry = bfd_hash_allocate (table, sizeof (struct elf_link_hash_entry)); | |||
1309 | if (entry == NULL((void*)0)) | |||
1310 | return entry; | |||
1311 | } | |||
1312 | ||||
1313 | /* Call the allocation method of the superclass. */ | |||
1314 | entry = _bfd_link_hash_newfunc (entry, table, string); | |||
1315 | if (entry != NULL((void*)0)) | |||
1316 | { | |||
1317 | struct elf_link_hash_entry *ret = (struct elf_link_hash_entry *) entry; | |||
1318 | struct elf_link_hash_table *htab = (struct elf_link_hash_table *) table; | |||
1319 | ||||
1320 | /* Set local fields. */ | |||
1321 | ret->indx = -1; | |||
1322 | ret->dynindx = -1; | |||
1323 | ret->dynstr_index = 0; | |||
1324 | ret->elf_hash_value = 0; | |||
1325 | ret->weakdef = NULL((void*)0); | |||
1326 | ret->verinfo.verdef = NULL((void*)0); | |||
1327 | ret->vtable_entries_size = 0; | |||
1328 | ret->vtable_entries_used = NULL((void*)0); | |||
1329 | ret->vtable_parent = NULL((void*)0); | |||
1330 | ret->got = htab->init_refcount; | |||
1331 | ret->plt = htab->init_refcount; | |||
1332 | ret->size = 0; | |||
1333 | ret->type = STT_NOTYPE0; | |||
1334 | ret->other = 0; | |||
1335 | /* Assume that we have been called by a non-ELF symbol reader. | |||
1336 | This flag is then reset by the code which reads an ELF input | |||
1337 | file. This ensures that a symbol created by a non-ELF symbol | |||
1338 | reader will have the flag set correctly. */ | |||
1339 | ret->elf_link_hash_flags = ELF_LINK_NON_ELF0400; | |||
1340 | } | |||
1341 | ||||
1342 | return entry; | |||
1343 | } | |||
1344 | ||||
1345 | /* Copy data from an indirect symbol to its direct symbol, hiding the | |||
1346 | old indirect symbol. Also used for copying flags to a weakdef. */ | |||
1347 | ||||
1348 | void | |||
1349 | _bfd_elf_link_hash_copy_indirect (const struct elf_backend_data *bed, | |||
1350 | struct elf_link_hash_entry *dir, | |||
1351 | struct elf_link_hash_entry *ind) | |||
1352 | { | |||
1353 | bfd_signed_vma tmp; | |||
1354 | bfd_signed_vma lowest_valid = bed->can_refcount; | |||
1355 | ||||
1356 | /* Copy down any references that we may have already seen to the | |||
1357 | symbol which just became indirect. */ | |||
1358 | ||||
1359 | dir->elf_link_hash_flags | |||
1360 | |= ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC04 | |||
1361 | | ELF_LINK_HASH_REF_REGULAR01 | |||
1362 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK020 | |||
1363 | | ELF_LINK_NON_GOT_REF010000 | |||
1364 | | ELF_LINK_HASH_NEEDS_PLT0200 | |||
1365 | | ELF_LINK_POINTER_EQUALITY_NEEDED0100000); | |||
1366 | ||||
1367 | if (ind->root.type != bfd_link_hash_indirect) | |||
1368 | return; | |||
1369 | ||||
1370 | /* Copy over the global and procedure linkage table refcount entries. | |||
1371 | These may have been already set up by a check_relocs routine. */ | |||
1372 | tmp = dir->got.refcount; | |||
1373 | if (tmp < lowest_valid) | |||
1374 | { | |||
1375 | dir->got.refcount = ind->got.refcount; | |||
1376 | ind->got.refcount = tmp; | |||
1377 | } | |||
1378 | else | |||
1379 | BFD_ASSERT (ind->got.refcount < lowest_valid){ if (!(ind->got.refcount < lowest_valid)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1379); }; | |||
1380 | ||||
1381 | tmp = dir->plt.refcount; | |||
1382 | if (tmp < lowest_valid) | |||
1383 | { | |||
1384 | dir->plt.refcount = ind->plt.refcount; | |||
1385 | ind->plt.refcount = tmp; | |||
1386 | } | |||
1387 | else | |||
1388 | BFD_ASSERT (ind->plt.refcount < lowest_valid){ if (!(ind->plt.refcount < lowest_valid)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1388); }; | |||
1389 | ||||
1390 | if (dir->dynindx == -1) | |||
1391 | { | |||
1392 | dir->dynindx = ind->dynindx; | |||
1393 | dir->dynstr_index = ind->dynstr_index; | |||
1394 | ind->dynindx = -1; | |||
1395 | ind->dynstr_index = 0; | |||
1396 | } | |||
1397 | else | |||
1398 | BFD_ASSERT (ind->dynindx == -1){ if (!(ind->dynindx == -1)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1398); }; | |||
1399 | } | |||
1400 | ||||
1401 | void | |||
1402 | _bfd_elf_link_hash_hide_symbol (struct bfd_link_info *info, | |||
1403 | struct elf_link_hash_entry *h, | |||
1404 | bfd_boolean force_local) | |||
1405 | { | |||
1406 | h->plt = elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->init_offset; | |||
1407 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT0200; | |||
1408 | if (force_local) | |||
1409 | { | |||
1410 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL02000; | |||
1411 | if (h->dynindx != -1) | |||
1412 | { | |||
1413 | h->dynindx = -1; | |||
1414 | _bfd_elf_strtab_delref (elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->dynstr, | |||
1415 | h->dynstr_index); | |||
1416 | } | |||
1417 | } | |||
1418 | } | |||
1419 | ||||
1420 | /* Initialize an ELF linker hash table. */ | |||
1421 | ||||
1422 | bfd_boolean | |||
1423 | _bfd_elf_link_hash_table_init | |||
1424 | (struct elf_link_hash_table *table, | |||
1425 | bfd *abfd, | |||
1426 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, | |||
1427 | struct bfd_hash_table *, | |||
1428 | const char *)) | |||
1429 | { | |||
1430 | bfd_boolean ret; | |||
1431 | ||||
1432 | table->dynamic_sections_created = FALSE0; | |||
1433 | table->dynobj = NULL((void*)0); | |||
1434 | /* Make sure can_refcount is extended to the width and signedness of | |||
1435 | init_refcount before we subtract one from it. */ | |||
1436 | table->init_refcount.refcount = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->can_refcount; | |||
1437 | table->init_refcount.refcount -= 1; | |||
1438 | table->init_offset.offset = -(bfd_vma) 1; | |||
1439 | /* The first dynamic symbol is a dummy. */ | |||
1440 | table->dynsymcount = 1; | |||
1441 | table->dynstr = NULL((void*)0); | |||
1442 | table->bucketcount = 0; | |||
1443 | table->needed = NULL((void*)0); | |||
1444 | table->hgot = NULL((void*)0); | |||
1445 | table->stab_info = NULL((void*)0); | |||
1446 | table->merge_info = NULL((void*)0); | |||
1447 | memset (&table->eh_info, 0, sizeof (table->eh_info)); | |||
1448 | table->dynlocal = NULL((void*)0); | |||
1449 | table->runpath = NULL((void*)0); | |||
1450 | table->tls_sec = NULL((void*)0); | |||
1451 | table->tls_size = 0; | |||
1452 | table->loaded = NULL((void*)0); | |||
1453 | ||||
1454 | ret = _bfd_link_hash_table_init (&table->root, abfd, newfunc); | |||
1455 | table->root.type = bfd_link_elf_hash_table; | |||
1456 | ||||
1457 | return ret; | |||
1458 | } | |||
1459 | ||||
1460 | /* Create an ELF linker hash table. */ | |||
1461 | ||||
1462 | struct bfd_link_hash_table * | |||
1463 | _bfd_elf_link_hash_table_create (bfd *abfd) | |||
1464 | { | |||
1465 | struct elf_link_hash_table *ret; | |||
1466 | bfd_size_type amt = sizeof (struct elf_link_hash_table); | |||
1467 | ||||
1468 | ret = bfd_malloc (amt); | |||
1469 | if (ret == NULL((void*)0)) | |||
1470 | return NULL((void*)0); | |||
1471 | ||||
1472 | if (! _bfd_elf_link_hash_table_init (ret, abfd, _bfd_elf_link_hash_newfunc)) | |||
1473 | { | |||
1474 | free (ret); | |||
1475 | return NULL((void*)0); | |||
1476 | } | |||
1477 | ||||
1478 | return &ret->root; | |||
1479 | } | |||
1480 | ||||
1481 | /* This is a hook for the ELF emulation code in the generic linker to | |||
1482 | tell the backend linker what file name to use for the DT_NEEDED | |||
1483 | entry for a dynamic object. */ | |||
1484 | ||||
1485 | void | |||
1486 | bfd_elf_set_dt_needed_name (bfd *abfd, const char *name) | |||
1487 | { | |||
1488 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour | |||
1489 | && bfd_get_format (abfd)((abfd)->format) == bfd_object) | |||
1490 | elf_dt_name (abfd)(((abfd) -> tdata.elf_obj_data) -> dt_name) = name; | |||
1491 | } | |||
1492 | ||||
1493 | void | |||
1494 | bfd_elf_set_dyn_lib_class (bfd *abfd, int lib_class) | |||
1495 | { | |||
1496 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour | |||
1497 | && bfd_get_format (abfd)((abfd)->format) == bfd_object) | |||
1498 | elf_dyn_lib_class (abfd)(((abfd) -> tdata.elf_obj_data) -> dyn_lib_class) = lib_class; | |||
1499 | } | |||
1500 | ||||
1501 | /* Get the list of DT_NEEDED entries for a link. This is a hook for | |||
1502 | the linker ELF emulation code. */ | |||
1503 | ||||
1504 | struct bfd_link_needed_list * | |||
1505 | bfd_elf_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
1506 | struct bfd_link_info *info) | |||
1507 | { | |||
1508 | if (! is_elf_hash_table (info->hash)(((struct bfd_link_hash_table *) (info->hash))->type == bfd_link_elf_hash_table)) | |||
1509 | return NULL((void*)0); | |||
1510 | return elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->needed; | |||
1511 | } | |||
1512 | ||||
1513 | /* Get the list of DT_RPATH/DT_RUNPATH entries for a link. This is a | |||
1514 | hook for the linker ELF emulation code. */ | |||
1515 | ||||
1516 | struct bfd_link_needed_list * | |||
1517 | bfd_elf_get_runpath_list (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
1518 | struct bfd_link_info *info) | |||
1519 | { | |||
1520 | if (! is_elf_hash_table (info->hash)(((struct bfd_link_hash_table *) (info->hash))->type == bfd_link_elf_hash_table)) | |||
1521 | return NULL((void*)0); | |||
1522 | return elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->runpath; | |||
1523 | } | |||
1524 | ||||
1525 | /* Get the name actually used for a dynamic object for a link. This | |||
1526 | is the SONAME entry if there is one. Otherwise, it is the string | |||
1527 | passed to bfd_elf_set_dt_needed_name, or it is the filename. */ | |||
1528 | ||||
1529 | const char * | |||
1530 | bfd_elf_get_dt_soname (bfd *abfd) | |||
1531 | { | |||
1532 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour | |||
1533 | && bfd_get_format (abfd)((abfd)->format) == bfd_object) | |||
1534 | return elf_dt_name (abfd)(((abfd) -> tdata.elf_obj_data) -> dt_name); | |||
1535 | return NULL((void*)0); | |||
1536 | } | |||
1537 | ||||
1538 | /* Get the list of DT_NEEDED entries from a BFD. This is a hook for | |||
1539 | the ELF linker emulation code. */ | |||
1540 | ||||
1541 | bfd_boolean | |||
1542 | bfd_elf_get_bfd_needed_list (bfd *abfd, | |||
1543 | struct bfd_link_needed_list **pneeded) | |||
1544 | { | |||
1545 | asection *s; | |||
1546 | bfd_byte *dynbuf = NULL((void*)0); | |||
1547 | int elfsec; | |||
1548 | unsigned long shlink; | |||
1549 | bfd_byte *extdyn, *extdynend; | |||
1550 | size_t extdynsize; | |||
1551 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |||
1552 | ||||
1553 | *pneeded = NULL((void*)0); | |||
1554 | ||||
1555 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) != bfd_target_elf_flavour | |||
1556 | || bfd_get_format (abfd)((abfd)->format) != bfd_object) | |||
1557 | return TRUE1; | |||
1558 | ||||
1559 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |||
1560 | if (s == NULL((void*)0) || s->_raw_size == 0) | |||
1561 | return TRUE1; | |||
1562 | ||||
1563 | dynbuf = bfd_malloc (s->_raw_size); | |||
1564 | if (dynbuf == NULL((void*)0)) | |||
1565 | goto error_return; | |||
1566 | ||||
1567 | if (! bfd_get_section_contents (abfd, s, dynbuf, 0, s->_raw_size)) | |||
1568 | goto error_return; | |||
1569 | ||||
1570 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |||
1571 | if (elfsec == -1) | |||
1572 | goto error_return; | |||
1573 | ||||
1574 | shlink = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[elfsec]->sh_link; | |||
1575 | ||||
1576 | extdynsize = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->sizeof_dyn; | |||
1577 | swap_dyn_in = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->swap_dyn_in; | |||
1578 | ||||
1579 | extdyn = dynbuf; | |||
1580 | extdynend = extdyn + s->_raw_size; | |||
1581 | for (; extdyn < extdynend; extdyn += extdynsize) | |||
1582 | { | |||
1583 | Elf_Internal_Dyn dyn; | |||
1584 | ||||
1585 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |||
1586 | ||||
1587 | if (dyn.d_tag == DT_NULL0) | |||
1588 | break; | |||
1589 | ||||
1590 | if (dyn.d_tag == DT_NEEDED1) | |||
1591 | { | |||
1592 | const char *string; | |||
1593 | struct bfd_link_needed_list *l; | |||
1594 | unsigned int tagv = dyn.d_un.d_val; | |||
1595 | bfd_size_type amt; | |||
1596 | ||||
1597 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); | |||
1598 | if (string == NULL((void*)0)) | |||
1599 | goto error_return; | |||
1600 | ||||
1601 | amt = sizeof *l; | |||
1602 | l = bfd_alloc (abfd, amt); | |||
1603 | if (l == NULL((void*)0)) | |||
1604 | goto error_return; | |||
1605 | ||||
1606 | l->by = abfd; | |||
1607 | l->name = string; | |||
1608 | l->next = *pneeded; | |||
1609 | *pneeded = l; | |||
1610 | } | |||
1611 | } | |||
1612 | ||||
1613 | free (dynbuf); | |||
1614 | ||||
1615 | return TRUE1; | |||
1616 | ||||
1617 | error_return: | |||
1618 | if (dynbuf != NULL((void*)0)) | |||
1619 | free (dynbuf); | |||
1620 | return FALSE0; | |||
1621 | } | |||
1622 | ||||
1623 | /* Allocate an ELF string table--force the first byte to be zero. */ | |||
1624 | ||||
1625 | struct bfd_strtab_hash * | |||
1626 | _bfd_elf_stringtab_init (void) | |||
1627 | { | |||
1628 | struct bfd_strtab_hash *ret; | |||
1629 | ||||
1630 | ret = _bfd_stringtab_init (); | |||
1631 | if (ret != NULL((void*)0)) | |||
1632 | { | |||
1633 | bfd_size_type loc; | |||
1634 | ||||
1635 | loc = _bfd_stringtab_add (ret, "", TRUE1, FALSE0); | |||
1636 | BFD_ASSERT (loc == 0 || loc == (bfd_size_type) -1){ if (!(loc == 0 || loc == (bfd_size_type) -1)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1636); }; | |||
1637 | if (loc == (bfd_size_type) -1) | |||
1638 | { | |||
1639 | _bfd_stringtab_free (ret); | |||
1640 | ret = NULL((void*)0); | |||
1641 | } | |||
1642 | } | |||
1643 | return ret; | |||
1644 | } | |||
1645 | ||||
1646 | /* ELF .o/exec file reading */ | |||
1647 | ||||
1648 | /* Create a new bfd section from an ELF section header. */ | |||
1649 | ||||
1650 | bfd_boolean | |||
1651 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) | |||
1652 | { | |||
1653 | Elf_Internal_Shdr *hdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex]; | |||
1654 | Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header); | |||
1655 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
1656 | const char *name; | |||
1657 | ||||
1658 | name = elf_string_from_elf_strtab (abfd, hdr->sh_name)bfd_elf_string_from_elf_section (abfd, (((abfd) -> tdata.elf_obj_data ) -> elf_header)->e_shstrndx, hdr->sh_name); | |||
1659 | ||||
1660 | switch (hdr->sh_type) | |||
1661 | { | |||
1662 | case SHT_NULL0: | |||
1663 | /* Inactive section. Throw it away. */ | |||
1664 | return TRUE1; | |||
1665 | ||||
1666 | case SHT_PROGBITS1: /* Normal section with contents. */ | |||
1667 | case SHT_NOBITS8: /* .bss section. */ | |||
1668 | case SHT_HASH5: /* .hash section. */ | |||
1669 | case SHT_NOTE7: /* .note section. */ | |||
1670 | case SHT_INIT_ARRAY14: /* .init_array section. */ | |||
1671 | case SHT_FINI_ARRAY15: /* .fini_array section. */ | |||
1672 | case SHT_PREINIT_ARRAY16: /* .preinit_array section. */ | |||
1673 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1674 | ||||
1675 | case SHT_DYNAMIC6: /* Dynamic linking information. */ | |||
1676 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |||
1677 | return FALSE0; | |||
1678 | if (elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[hdr->sh_link]->sh_type != SHT_STRTAB3) | |||
1679 | { | |||
1680 | Elf_Internal_Shdr *dynsymhdr; | |||
1681 | ||||
1682 | /* The shared libraries distributed with hpux11 have a bogus | |||
1683 | sh_link field for the ".dynamic" section. Find the | |||
1684 | string table for the ".dynsym" section instead. */ | |||
1685 | if (elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) != 0) | |||
1686 | { | |||
1687 | dynsymhdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section)]; | |||
1688 | hdr->sh_link = dynsymhdr->sh_link; | |||
1689 | } | |||
1690 | else | |||
1691 | { | |||
1692 | unsigned int i, num_sec; | |||
1693 | ||||
1694 | num_sec = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
1695 | for (i = 1; i < num_sec; i++) | |||
1696 | { | |||
1697 | dynsymhdr = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[i]; | |||
1698 | if (dynsymhdr->sh_type == SHT_DYNSYM11) | |||
1699 | { | |||
1700 | hdr->sh_link = dynsymhdr->sh_link; | |||
1701 | break; | |||
1702 | } | |||
1703 | } | |||
1704 | } | |||
1705 | } | |||
1706 | break; | |||
1707 | ||||
1708 | case SHT_SYMTAB2: /* A symbol table */ | |||
1709 | if (elf_onesymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_section) == shindex) | |||
1710 | return TRUE1; | |||
1711 | ||||
1712 | BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym){ if (!(hdr->sh_entsize == bed->s->sizeof_sym)) bfd_assert ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c",1712); }; | |||
1713 | BFD_ASSERT (elf_onesymtab (abfd) == 0){ if (!((((abfd) -> tdata.elf_obj_data) -> symtab_section ) == 0)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1713); }; | |||
1714 | elf_onesymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_section) = shindex; | |||
1715 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr = *hdr; | |||
1716 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr; | |||
1717 | abfd->flags |= HAS_SYMS0x10; | |||
1718 | ||||
1719 | /* Sometimes a shared object will map in the symbol table. If | |||
1720 | SHF_ALLOC is set, and this is a shared object, then we also | |||
1721 | treat this section as a BFD section. We can not base the | |||
1722 | decision purely on SHF_ALLOC, because that flag is sometimes | |||
1723 | set in a relocatable object file, which would confuse the | |||
1724 | linker. */ | |||
1725 | if ((hdr->sh_flags & SHF_ALLOC(1 << 1)) != 0 | |||
1726 | && (abfd->flags & DYNAMIC0x40) != 0 | |||
1727 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |||
1728 | return FALSE0; | |||
1729 | ||||
1730 | return TRUE1; | |||
1731 | ||||
1732 | case SHT_DYNSYM11: /* A dynamic symbol table */ | |||
1733 | if (elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) == shindex) | |||
1734 | return TRUE1; | |||
1735 | ||||
1736 | BFD_ASSERT (hdr->sh_entsize == bed->s->sizeof_sym){ if (!(hdr->sh_entsize == bed->s->sizeof_sym)) bfd_assert ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c",1736); }; | |||
1737 | BFD_ASSERT (elf_dynsymtab (abfd) == 0){ if (!((((abfd) -> tdata.elf_obj_data) -> dynsymtab_section ) == 0)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1737); }; | |||
1738 | elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) = shindex; | |||
1739 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynsymtab_hdr = *hdr; | |||
1740 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynsymtab_hdr; | |||
1741 | abfd->flags |= HAS_SYMS0x10; | |||
1742 | ||||
1743 | /* Besides being a symbol table, we also treat this as a regular | |||
1744 | section, so that objcopy can handle it. */ | |||
1745 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1746 | ||||
1747 | case SHT_SYMTAB_SHNDX18: /* Symbol section indices when >64k sections */ | |||
1748 | if (elf_symtab_shndx (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_shndx_section ) == shindex) | |||
1749 | return TRUE1; | |||
1750 | ||||
1751 | /* Get the associated symbol table. */ | |||
1752 | if (! bfd_section_from_shdr (abfd, hdr->sh_link) | |||
1753 | || hdr->sh_link != elf_onesymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_section)) | |||
1754 | return FALSE0; | |||
1755 | ||||
1756 | elf_symtab_shndx (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_shndx_section ) = shindex; | |||
1757 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_shndx_hdr = *hdr; | |||
1758 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_shndx_hdr; | |||
1759 | return TRUE1; | |||
1760 | ||||
1761 | case SHT_STRTAB3: /* A string table */ | |||
1762 | if (hdr->bfd_section != NULL((void*)0)) | |||
1763 | return TRUE1; | |||
1764 | if (ehdr->e_shstrndx == shindex) | |||
1765 | { | |||
1766 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_hdr = *hdr; | |||
1767 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_hdr; | |||
1768 | return TRUE1; | |||
1769 | } | |||
1770 | { | |||
1771 | unsigned int i, num_sec; | |||
1772 | ||||
1773 | num_sec = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
1774 | for (i = 1; i < num_sec; i++) | |||
1775 | { | |||
1776 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[i]; | |||
1777 | if (hdr2->sh_link == shindex) | |||
1778 | { | |||
1779 | if (! bfd_section_from_shdr (abfd, i)) | |||
1780 | return FALSE0; | |||
1781 | if (elf_onesymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_section) == i) | |||
1782 | { | |||
1783 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->strtab_hdr = *hdr; | |||
1784 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = | |||
1785 | &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->strtab_hdr; | |||
1786 | return TRUE1; | |||
1787 | } | |||
1788 | if (elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) == i) | |||
1789 | { | |||
1790 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynstrtab_hdr = *hdr; | |||
1791 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = hdr = | |||
1792 | &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynstrtab_hdr; | |||
1793 | /* We also treat this as a regular section, so | |||
1794 | that objcopy can handle it. */ | |||
1795 | break; | |||
1796 | } | |||
1797 | #if 0 /* Not handling other string tables specially right now. */ | |||
1798 | hdr2 = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[i]; /* in case it moved */ | |||
1799 | /* We have a strtab for some random other section. */ | |||
1800 | newsect = (asection *) hdr2->bfd_section; | |||
1801 | if (!newsect) | |||
1802 | break; | |||
1803 | hdr->bfd_section = newsect; | |||
1804 | hdr2 = &elf_section_data (newsect)((struct bfd_elf_section_data*)newsect->used_by_bfd)->str_hdr; | |||
1805 | *hdr2 = *hdr; | |||
1806 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = hdr2; | |||
1807 | #endif | |||
1808 | } | |||
1809 | } | |||
1810 | } | |||
1811 | ||||
1812 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1813 | ||||
1814 | case SHT_REL9: | |||
1815 | case SHT_RELA4: | |||
1816 | /* *These* do a lot of work -- but build no sections! */ | |||
1817 | { | |||
1818 | asection *target_sect; | |||
1819 | Elf_Internal_Shdr *hdr2; | |||
1820 | unsigned int num_sec = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
1821 | ||||
1822 | /* Check for a bogus link to avoid crashing. */ | |||
1823 | if ((hdr->sh_link >= SHN_LORESERVE0xFF00 && hdr->sh_link <= SHN_HIRESERVE0xFFFF) | |||
1824 | || hdr->sh_link >= num_sec) | |||
1825 | { | |||
1826 | ((*_bfd_error_handler) | |||
1827 | (_("%s: invalid link %lu for reloc section %s (index %u)")("%s: invalid link %lu for reloc section %s (index %u)"), | |||
1828 | bfd_archive_filename (abfd), hdr->sh_link, name, shindex)); | |||
1829 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1830 | } | |||
1831 | ||||
1832 | /* For some incomprehensible reason Oracle distributes | |||
1833 | libraries for Solaris in which some of the objects have | |||
1834 | bogus sh_link fields. It would be nice if we could just | |||
1835 | reject them, but, unfortunately, some people need to use | |||
1836 | them. We scan through the section headers; if we find only | |||
1837 | one suitable symbol table, we clobber the sh_link to point | |||
1838 | to it. I hope this doesn't break anything. */ | |||
1839 | if (elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[hdr->sh_link]->sh_type != SHT_SYMTAB2 | |||
1840 | && elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[hdr->sh_link]->sh_type != SHT_DYNSYM11) | |||
1841 | { | |||
1842 | unsigned int scan; | |||
1843 | int found; | |||
1844 | ||||
1845 | found = 0; | |||
1846 | for (scan = 1; scan < num_sec; scan++) | |||
1847 | { | |||
1848 | if (elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[scan]->sh_type == SHT_SYMTAB2 | |||
1849 | || elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[scan]->sh_type == SHT_DYNSYM11) | |||
1850 | { | |||
1851 | if (found != 0) | |||
1852 | { | |||
1853 | found = 0; | |||
1854 | break; | |||
1855 | } | |||
1856 | found = scan; | |||
1857 | } | |||
1858 | } | |||
1859 | if (found != 0) | |||
1860 | hdr->sh_link = found; | |||
1861 | } | |||
1862 | ||||
1863 | /* Get the symbol table. */ | |||
1864 | if (elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[hdr->sh_link]->sh_type == SHT_SYMTAB2 | |||
1865 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) | |||
1866 | return FALSE0; | |||
1867 | ||||
1868 | /* If this reloc section does not use the main symbol table we | |||
1869 | don't treat it as a reloc section. BFD can't adequately | |||
1870 | represent such a section, so at least for now, we don't | |||
1871 | try. We just present it as a normal section. We also | |||
1872 | can't use it as a reloc section if it points to the null | |||
1873 | section. */ | |||
1874 | if (hdr->sh_link != elf_onesymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_section) || hdr->sh_info == SHN_UNDEF0) | |||
1875 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1876 | ||||
1877 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |||
1878 | return FALSE0; | |||
1879 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); | |||
1880 | if (target_sect == NULL((void*)0)) | |||
1881 | return FALSE0; | |||
1882 | ||||
1883 | if ((target_sect->flags & SEC_RELOC0x004) == 0 | |||
1884 | || target_sect->reloc_count == 0) | |||
1885 | hdr2 = &elf_section_data (target_sect)((struct bfd_elf_section_data*)target_sect->used_by_bfd)->rel_hdr; | |||
1886 | else | |||
1887 | { | |||
1888 | bfd_size_type amt; | |||
1889 | BFD_ASSERT (elf_section_data (target_sect)->rel_hdr2 == NULL){ if (!(((struct bfd_elf_section_data*)target_sect->used_by_bfd )->rel_hdr2 == ((void*)0))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,1889); }; | |||
1890 | amt = sizeof (*hdr2); | |||
1891 | hdr2 = bfd_alloc (abfd, amt); | |||
1892 | elf_section_data (target_sect)((struct bfd_elf_section_data*)target_sect->used_by_bfd)->rel_hdr2 = hdr2; | |||
1893 | } | |||
1894 | *hdr2 = *hdr; | |||
1895 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[shindex] = hdr2; | |||
1896 | target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr)((hdr)->sh_size / (hdr)->sh_entsize); | |||
1897 | target_sect->flags |= SEC_RELOC0x004; | |||
1898 | target_sect->relocation = NULL((void*)0); | |||
1899 | target_sect->rel_filepos = hdr->sh_offset; | |||
1900 | /* In the section to which the relocations apply, mark whether | |||
1901 | its relocations are of the REL or RELA variety. */ | |||
1902 | if (hdr->sh_size != 0) | |||
1903 | target_sect->use_rela_p = hdr->sh_type == SHT_RELA4; | |||
1904 | abfd->flags |= HAS_RELOC0x01; | |||
1905 | return TRUE1; | |||
1906 | } | |||
1907 | break; | |||
1908 | ||||
1909 | case SHT_GNU_verdef0x6ffffffd: | |||
1910 | elf_dynverdef (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverdef_section) = shindex; | |||
1911 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynverdef_hdr = *hdr; | |||
1912 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1913 | break; | |||
1914 | ||||
1915 | case SHT_GNU_versym0x6fffffff: | |||
1916 | elf_dynversym (abfd)(((abfd) -> tdata.elf_obj_data) -> dynversym_section) = shindex; | |||
1917 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynversym_hdr = *hdr; | |||
1918 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1919 | break; | |||
1920 | ||||
1921 | case SHT_GNU_verneed0x6ffffffe: | |||
1922 | elf_dynverref (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverref_section) = shindex; | |||
1923 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynverref_hdr = *hdr; | |||
1924 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name); | |||
1925 | break; | |||
1926 | ||||
1927 | case SHT_SHLIB10: | |||
1928 | return TRUE1; | |||
1929 | ||||
1930 | case SHT_GROUP17: | |||
1931 | /* We need a BFD section for objcopy and relocatable linking, | |||
1932 | and it's handy to have the signature available as the section | |||
1933 | name. */ | |||
1934 | name = group_signature (abfd, hdr); | |||
1935 | if (name == NULL((void*)0)) | |||
1936 | return FALSE0; | |||
1937 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |||
1938 | return FALSE0; | |||
1939 | if (hdr->contents != NULL((void*)0)) | |||
1940 | { | |||
1941 | Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; | |||
1942 | unsigned int n_elt = hdr->sh_size / 4; | |||
1943 | asection *s; | |||
1944 | ||||
1945 | if (idx->flags & GRP_COMDAT0x1) | |||
1946 | hdr->bfd_section->flags | |||
1947 | |= SEC_LINK_ONCE0x100000 | SEC_LINK_DUPLICATES_DISCARD0x0; | |||
1948 | ||||
1949 | while (--n_elt != 0) | |||
1950 | if ((s = (++idx)->shdr->bfd_section) != NULL((void*)0) | |||
1951 | && elf_next_in_group (s)(((struct bfd_elf_section_data*)s->used_by_bfd)->next_in_group ) != NULL((void*)0)) | |||
1952 | { | |||
1953 | elf_next_in_group (hdr->bfd_section)(((struct bfd_elf_section_data*)hdr->bfd_section->used_by_bfd )->next_in_group) = s; | |||
1954 | break; | |||
1955 | } | |||
1956 | } | |||
1957 | break; | |||
1958 | ||||
1959 | default: | |||
1960 | /* Check for any processor-specific section types. */ | |||
1961 | { | |||
1962 | if (bed->elf_backend_section_from_shdr) | |||
1963 | (*bed->elf_backend_section_from_shdr) (abfd, hdr, name); | |||
1964 | } | |||
1965 | break; | |||
1966 | } | |||
1967 | ||||
1968 | return TRUE1; | |||
1969 | } | |||
1970 | ||||
1971 | /* Return the section for the local symbol specified by ABFD, R_SYMNDX. | |||
1972 | Return SEC for sections that have no elf section, and NULL on error. */ | |||
1973 | ||||
1974 | asection * | |||
1975 | bfd_section_from_r_symndx (bfd *abfd, | |||
1976 | struct sym_sec_cache *cache, | |||
1977 | asection *sec, | |||
1978 | unsigned long r_symndx) | |||
1979 | { | |||
1980 | Elf_Internal_Shdr *symtab_hdr; | |||
1981 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |||
1982 | Elf_External_Sym_Shndx eshndx; | |||
1983 | Elf_Internal_Sym isym; | |||
1984 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE32; | |||
1985 | ||||
1986 | if (cache->abfd == abfd && cache->indx[ent] == r_symndx) | |||
1987 | return cache->sec[ent]; | |||
1988 | ||||
1989 | symtab_hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr; | |||
1990 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |||
1991 | &isym, esym, &eshndx) == NULL((void*)0)) | |||
1992 | return NULL((void*)0); | |||
1993 | ||||
1994 | if (cache->abfd != abfd) | |||
1995 | { | |||
1996 | memset (cache->indx, -1, sizeof (cache->indx)); | |||
1997 | cache->abfd = abfd; | |||
1998 | } | |||
1999 | cache->indx[ent] = r_symndx; | |||
2000 | cache->sec[ent] = sec; | |||
2001 | if ((isym.st_shndx != SHN_UNDEF0 && isym.st_shndx < SHN_LORESERVE0xFF00) | |||
2002 | || isym.st_shndx > SHN_HIRESERVE0xFFFF) | |||
2003 | { | |||
2004 | asection *s; | |||
2005 | s = bfd_section_from_elf_index (abfd, isym.st_shndx); | |||
2006 | if (s != NULL((void*)0)) | |||
2007 | cache->sec[ent] = s; | |||
2008 | } | |||
2009 | return cache->sec[ent]; | |||
2010 | } | |||
2011 | ||||
2012 | /* Given an ELF section number, retrieve the corresponding BFD | |||
2013 | section. */ | |||
2014 | ||||
2015 | asection * | |||
2016 | bfd_section_from_elf_index (bfd *abfd, unsigned int index) | |||
2017 | { | |||
2018 | if (index >= elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections)) | |||
2019 | return NULL((void*)0); | |||
2020 | return elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr)[index]->bfd_section; | |||
2021 | } | |||
2022 | ||||
2023 | static struct bfd_elf_special_section const special_sections[] = | |||
2024 | { | |||
2025 | { ".bss", 4, -2, SHT_NOBITS8, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2026 | { ".comment", 8, 0, SHT_PROGBITS1, 0 }, | |||
2027 | { ".data", 5, -2, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2028 | { ".data1", 6, 0, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2029 | { ".debug", 6, 0, SHT_PROGBITS1, 0 }, | |||
2030 | { ".fini", 5, 0, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_EXECINSTR(1 << 2) }, | |||
2031 | { ".init", 5, 0, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_EXECINSTR(1 << 2) }, | |||
2032 | { ".line", 5, 0, SHT_PROGBITS1, 0 }, | |||
2033 | { ".rodata", 7, -2, SHT_PROGBITS1, SHF_ALLOC(1 << 1) }, | |||
2034 | { ".rodata1", 8, 0, SHT_PROGBITS1, SHF_ALLOC(1 << 1) }, | |||
2035 | { ".tbss", 5, -2, SHT_NOBITS8, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) + SHF_TLS(1 << 10) }, | |||
2036 | { ".tdata", 6, -2, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) + SHF_TLS(1 << 10) }, | |||
2037 | { ".text", 5, -2, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_EXECINSTR(1 << 2) }, | |||
2038 | { ".init_array", 11, 0, SHT_INIT_ARRAY14, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2039 | { ".fini_array", 11, 0, SHT_FINI_ARRAY15, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2040 | { ".preinit_array", 14, 0, SHT_PREINIT_ARRAY16, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2041 | { ".debug_line", 11, 0, SHT_PROGBITS1, 0 }, | |||
2042 | { ".debug_info", 11, 0, SHT_PROGBITS1, 0 }, | |||
2043 | { ".debug_abbrev", 13, 0, SHT_PROGBITS1, 0 }, | |||
2044 | { ".debug_aranges", 14, 0, SHT_PROGBITS1, 0 }, | |||
2045 | { ".dynamic", 8, 0, SHT_DYNAMIC6, SHF_ALLOC(1 << 1) }, | |||
2046 | { ".dynstr", 7, 0, SHT_STRTAB3, SHF_ALLOC(1 << 1) }, | |||
2047 | { ".dynsym", 7, 0, SHT_DYNSYM11, SHF_ALLOC(1 << 1) }, | |||
2048 | { ".got", 4, 0, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_WRITE(1 << 0) }, | |||
2049 | { ".hash", 5, 0, SHT_HASH5, SHF_ALLOC(1 << 1) }, | |||
2050 | { ".interp", 7, 0, SHT_PROGBITS1, 0 }, | |||
2051 | { ".plt", 4, 0, SHT_PROGBITS1, SHF_ALLOC(1 << 1) + SHF_EXECINSTR(1 << 2) }, | |||
2052 | { ".shstrtab", 9, 0, SHT_STRTAB3, 0 }, | |||
2053 | { ".strtab", 7, 0, SHT_STRTAB3, 0 }, | |||
2054 | { ".symtab", 7, 0, SHT_SYMTAB2, 0 }, | |||
2055 | { ".gnu.version", 12, 0, SHT_GNU_versym0x6fffffff, 0 }, | |||
2056 | { ".gnu.version_d", 14, 0, SHT_GNU_verdef0x6ffffffd, 0 }, | |||
2057 | { ".gnu.version_r", 14, 0, SHT_GNU_verneed0x6ffffffe, 0 }, | |||
2058 | { ".note", 5, -1, SHT_NOTE7, 0 }, | |||
2059 | { ".rela", 5, -1, SHT_RELA4, 0 }, | |||
2060 | { ".rel", 4, -1, SHT_REL9, 0 }, | |||
2061 | { ".stabstr", 5, 3, SHT_STRTAB3, 0 }, | |||
2062 | { NULL((void*)0), 0, 0, 0, 0 } | |||
2063 | }; | |||
2064 | ||||
2065 | static const struct bfd_elf_special_section * | |||
2066 | get_special_section (const char *name, | |||
2067 | const struct bfd_elf_special_section *special_sections, | |||
2068 | unsigned int rela) | |||
2069 | { | |||
2070 | int i; | |||
2071 | int len = strlen (name); | |||
2072 | ||||
2073 | for (i = 0; special_sections[i].prefix != NULL((void*)0); i++) | |||
2074 | { | |||
2075 | int suffix_len; | |||
2076 | int prefix_len = special_sections[i].prefix_length; | |||
2077 | ||||
2078 | if (len < prefix_len) | |||
2079 | continue; | |||
2080 | if (memcmp (name, special_sections[i].prefix, prefix_len) != 0) | |||
2081 | continue; | |||
2082 | ||||
2083 | suffix_len = special_sections[i].suffix_length; | |||
2084 | if (suffix_len <= 0) | |||
2085 | { | |||
2086 | if (name[prefix_len] != 0) | |||
2087 | { | |||
2088 | if (suffix_len == 0) | |||
2089 | continue; | |||
2090 | if (name[prefix_len] != '.' | |||
2091 | && (suffix_len == -2 | |||
2092 | || (rela && special_sections[i].type == SHT_REL9))) | |||
2093 | continue; | |||
2094 | } | |||
2095 | } | |||
2096 | else | |||
2097 | { | |||
2098 | if (len < prefix_len + suffix_len) | |||
2099 | continue; | |||
2100 | if (memcmp (name + len - suffix_len, | |||
2101 | special_sections[i].prefix + prefix_len, | |||
2102 | suffix_len) != 0) | |||
2103 | continue; | |||
2104 | } | |||
2105 | return &special_sections[i]; | |||
2106 | } | |||
2107 | ||||
2108 | return NULL((void*)0); | |||
2109 | } | |||
2110 | ||||
2111 | const struct bfd_elf_special_section * | |||
2112 | _bfd_elf_get_sec_type_attr (bfd *abfd, const char *name) | |||
2113 | { | |||
2114 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
2115 | const struct bfd_elf_special_section *ssect = NULL((void*)0); | |||
2116 | ||||
2117 | /* See if this is one of the special sections. */ | |||
2118 | if (name) | |||
2119 | { | |||
2120 | unsigned int rela = bed->default_use_rela_p; | |||
2121 | ||||
2122 | if (bed->special_sections) | |||
2123 | ssect = get_special_section (name, bed->special_sections, rela); | |||
2124 | ||||
2125 | if (! ssect) | |||
2126 | ssect = get_special_section (name, special_sections, rela); | |||
2127 | } | |||
2128 | ||||
2129 | return ssect; | |||
2130 | } | |||
2131 | ||||
2132 | bfd_boolean | |||
2133 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) | |||
2134 | { | |||
2135 | struct bfd_elf_section_data *sdata; | |||
2136 | const struct bfd_elf_special_section *ssect; | |||
2137 | ||||
2138 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; | |||
2139 | if (sdata == NULL((void*)0)) | |||
2140 | { | |||
2141 | sdata = bfd_zalloc (abfd, sizeof (*sdata)); | |||
2142 | if (sdata == NULL((void*)0)) | |||
2143 | return FALSE0; | |||
2144 | sec->used_by_bfd = sdata; | |||
2145 | } | |||
2146 | ||||
2147 | elf_section_type (sec)(((struct bfd_elf_section_data*)sec->used_by_bfd)->this_hdr .sh_type) = SHT_NULL0; | |||
2148 | ssect = _bfd_elf_get_sec_type_attr (abfd, sec->name); | |||
2149 | if (ssect != NULL((void*)0)) | |||
2150 | { | |||
2151 | elf_section_type (sec)(((struct bfd_elf_section_data*)sec->used_by_bfd)->this_hdr .sh_type) = ssect->type; | |||
2152 | elf_section_flags (sec)(((struct bfd_elf_section_data*)sec->used_by_bfd)->this_hdr .sh_flags) = ssect->attr; | |||
2153 | } | |||
2154 | ||||
2155 | /* Indicate whether or not this section should use RELA relocations. */ | |||
2156 | sec->use_rela_p = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->default_use_rela_p; | |||
2157 | ||||
2158 | return TRUE1; | |||
2159 | } | |||
2160 | ||||
2161 | /* Create a new bfd section from an ELF program header. | |||
2162 | ||||
2163 | Since program segments have no names, we generate a synthetic name | |||
2164 | of the form segment<NUM>, where NUM is generally the index in the | |||
2165 | program header table. For segments that are split (see below) we | |||
2166 | generate the names segment<NUM>a and segment<NUM>b. | |||
2167 | ||||
2168 | Note that some program segments may have a file size that is different than | |||
2169 | (less than) the memory size. All this means is that at execution the | |||
2170 | system must allocate the amount of memory specified by the memory size, | |||
2171 | but only initialize it with the first "file size" bytes read from the | |||
2172 | file. This would occur for example, with program segments consisting | |||
2173 | of combined data+bss. | |||
2174 | ||||
2175 | To handle the above situation, this routine generates TWO bfd sections | |||
2176 | for the single program segment. The first has the length specified by | |||
2177 | the file size of the segment, and the second has the length specified | |||
2178 | by the difference between the two sizes. In effect, the segment is split | |||
2179 | into it's initialized and uninitialized parts. | |||
2180 | ||||
2181 | */ | |||
2182 | ||||
2183 | bfd_boolean | |||
2184 | _bfd_elf_make_section_from_phdr (bfd *abfd, | |||
2185 | Elf_Internal_Phdr *hdr, | |||
2186 | int index, | |||
2187 | const char *typename) | |||
2188 | { | |||
2189 | asection *newsect; | |||
2190 | char *name; | |||
2191 | char namebuf[64]; | |||
2192 | size_t len; | |||
2193 | int split; | |||
2194 | ||||
2195 | split = ((hdr->p_memsz > 0) | |||
2196 | && (hdr->p_filesz > 0) | |||
2197 | && (hdr->p_memsz > hdr->p_filesz)); | |||
2198 | sprintf (namebuf, "%s%d%s", typename, index, split ? "a" : ""); | |||
2199 | len = strlen (namebuf) + 1; | |||
2200 | name = bfd_alloc (abfd, len); | |||
2201 | if (!name) | |||
2202 | return FALSE0; | |||
2203 | memcpy (name, namebuf, len); | |||
2204 | newsect = bfd_make_section (abfd, name); | |||
2205 | if (newsect == NULL((void*)0)) | |||
2206 | return FALSE0; | |||
2207 | newsect->vma = hdr->p_vaddr; | |||
2208 | newsect->lma = hdr->p_paddr; | |||
2209 | newsect->_raw_size = hdr->p_filesz; | |||
2210 | newsect->filepos = hdr->p_offset; | |||
2211 | newsect->flags |= SEC_HAS_CONTENTS0x200; | |||
2212 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |||
2213 | if (hdr->p_type == PT_LOAD1) | |||
2214 | { | |||
2215 | newsect->flags |= SEC_ALLOC0x001; | |||
2216 | newsect->flags |= SEC_LOAD0x002; | |||
2217 | if (hdr->p_flags & PF_X(1 << 0)) | |||
2218 | { | |||
2219 | /* FIXME: all we known is that it has execute PERMISSION, | |||
2220 | may be data. */ | |||
2221 | newsect->flags |= SEC_CODE0x020; | |||
2222 | } | |||
2223 | } | |||
2224 | if (!(hdr->p_flags & PF_W(1 << 1))) | |||
2225 | { | |||
2226 | newsect->flags |= SEC_READONLY0x010; | |||
2227 | } | |||
2228 | ||||
2229 | if (split) | |||
2230 | { | |||
2231 | sprintf (namebuf, "%s%db", typename, index); | |||
2232 | len = strlen (namebuf) + 1; | |||
2233 | name = bfd_alloc (abfd, len); | |||
2234 | if (!name) | |||
2235 | return FALSE0; | |||
2236 | memcpy (name, namebuf, len); | |||
2237 | newsect = bfd_make_section (abfd, name); | |||
2238 | if (newsect == NULL((void*)0)) | |||
2239 | return FALSE0; | |||
2240 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; | |||
2241 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |||
2242 | newsect->_raw_size = hdr->p_memsz - hdr->p_filesz; | |||
2243 | if (hdr->p_type == PT_LOAD1) | |||
2244 | { | |||
2245 | newsect->flags |= SEC_ALLOC0x001; | |||
2246 | if (hdr->p_flags & PF_X(1 << 0)) | |||
2247 | newsect->flags |= SEC_CODE0x020; | |||
2248 | } | |||
2249 | if (!(hdr->p_flags & PF_W(1 << 1))) | |||
2250 | newsect->flags |= SEC_READONLY0x010; | |||
2251 | } | |||
2252 | ||||
2253 | return TRUE1; | |||
2254 | } | |||
2255 | ||||
2256 | bfd_boolean | |||
2257 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int index) | |||
2258 | { | |||
2259 | const struct elf_backend_data *bed; | |||
2260 | ||||
2261 | switch (hdr->p_type) | |||
2262 | { | |||
2263 | case PT_NULL0: | |||
2264 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "null"); | |||
2265 | ||||
2266 | case PT_LOAD1: | |||
2267 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "load"); | |||
2268 | ||||
2269 | case PT_DYNAMIC2: | |||
2270 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "dynamic"); | |||
2271 | ||||
2272 | case PT_INTERP3: | |||
2273 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "interp"); | |||
2274 | ||||
2275 | case PT_NOTE4: | |||
2276 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, index, "note")) | |||
2277 | return FALSE0; | |||
2278 | if (! elfcore_read_notes (abfd, hdr->p_offset, hdr->p_filesz)) | |||
2279 | return FALSE0; | |||
2280 | return TRUE1; | |||
2281 | ||||
2282 | case PT_SHLIB5: | |||
2283 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "shlib"); | |||
2284 | ||||
2285 | case PT_PHDR6: | |||
2286 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "phdr"); | |||
2287 | ||||
2288 | case PT_GNU_EH_FRAME(0x60000000 + 0x474e550): | |||
2289 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, | |||
2290 | "eh_frame_hdr"); | |||
2291 | ||||
2292 | case PT_GNU_STACK(0x60000000 + 0x474e551): | |||
2293 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "stack"); | |||
2294 | ||||
2295 | case PT_OPENBSD_RANDOMIZE0x65a3dbe6: | |||
2296 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, | |||
2297 | "openbsd_randomize"); | |||
2298 | ||||
2299 | default: | |||
2300 | /* Check for any processor-specific program segment types. | |||
2301 | If no handler for them, default to making "segment" sections. */ | |||
2302 | bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
2303 | if (bed->elf_backend_section_from_phdr) | |||
2304 | return (*bed->elf_backend_section_from_phdr) (abfd, hdr, index); | |||
2305 | else | |||
2306 | return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "segment"); | |||
2307 | } | |||
2308 | } | |||
2309 | ||||
2310 | /* Initialize REL_HDR, the section-header for new section, containing | |||
2311 | relocations against ASECT. If USE_RELA_P is TRUE, we use RELA | |||
2312 | relocations; otherwise, we use REL relocations. */ | |||
2313 | ||||
2314 | bfd_boolean | |||
2315 | _bfd_elf_init_reloc_shdr (bfd *abfd, | |||
2316 | Elf_Internal_Shdr *rel_hdr, | |||
2317 | asection *asect, | |||
2318 | bfd_boolean use_rela_p) | |||
2319 | { | |||
2320 | char *name; | |||
2321 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
2322 | bfd_size_type amt = sizeof ".rela" + strlen (asect->name); | |||
2323 | ||||
2324 | name = bfd_alloc (abfd, amt); | |||
2325 | if (name == NULL((void*)0)) | |||
2326 | return FALSE0; | |||
2327 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name); | |||
2328 | rel_hdr->sh_name = | |||
2329 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), name, | |||
2330 | FALSE0); | |||
2331 | if (rel_hdr->sh_name == (unsigned int) -1) | |||
2332 | return FALSE0; | |||
2333 | rel_hdr->sh_type = use_rela_p ? SHT_RELA4 : SHT_REL9; | |||
2334 | rel_hdr->sh_entsize = (use_rela_p | |||
2335 | ? bed->s->sizeof_rela | |||
2336 | : bed->s->sizeof_rel); | |||
2337 | rel_hdr->sh_addralign = 1 << bed->s->log_file_align; | |||
2338 | rel_hdr->sh_flags = 0; | |||
2339 | rel_hdr->sh_addr = 0; | |||
2340 | rel_hdr->sh_size = 0; | |||
2341 | rel_hdr->sh_offset = 0; | |||
2342 | ||||
2343 | return TRUE1; | |||
2344 | } | |||
2345 | ||||
2346 | /* Set up an ELF internal section header for a section. */ | |||
2347 | ||||
2348 | static void | |||
2349 | elf_fake_sections (bfd *abfd, asection *asect, void *failedptrarg) | |||
2350 | { | |||
2351 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
2352 | bfd_boolean *failedptr = failedptrarg; | |||
2353 | Elf_Internal_Shdr *this_hdr; | |||
2354 | ||||
2355 | if (*failedptr) | |||
2356 | { | |||
2357 | /* We already failed; just get out of the bfd_map_over_sections | |||
2358 | loop. */ | |||
2359 | return; | |||
2360 | } | |||
2361 | ||||
2362 | this_hdr = &elf_section_data (asect)((struct bfd_elf_section_data*)asect->used_by_bfd)->this_hdr; | |||
2363 | ||||
2364 | this_hdr->sh_name = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), | |||
2365 | asect->name, FALSE0); | |||
2366 | if (this_hdr->sh_name == (unsigned int) -1) | |||
2367 | { | |||
2368 | *failedptr = TRUE1; | |||
2369 | return; | |||
2370 | } | |||
2371 | ||||
2372 | this_hdr->sh_flags = 0; | |||
2373 | ||||
2374 | if ((asect->flags & SEC_ALLOC0x001) != 0 | |||
2375 | || asect->user_set_vma) | |||
2376 | this_hdr->sh_addr = asect->vma; | |||
2377 | else | |||
2378 | this_hdr->sh_addr = 0; | |||
2379 | ||||
2380 | this_hdr->sh_offset = 0; | |||
2381 | this_hdr->sh_size = asect->_raw_size; | |||
2382 | this_hdr->sh_link = 0; | |||
2383 | this_hdr->sh_addralign = 1 << asect->alignment_power; | |||
2384 | /* The sh_entsize and sh_info fields may have been set already by | |||
2385 | copy_private_section_data. */ | |||
2386 | ||||
2387 | this_hdr->bfd_section = asect; | |||
2388 | this_hdr->contents = NULL((void*)0); | |||
2389 | ||||
2390 | /* If the section type is unspecified, we set it based on | |||
2391 | asect->flags. */ | |||
2392 | if (this_hdr->sh_type == SHT_NULL0) | |||
2393 | { | |||
2394 | if ((asect->flags & SEC_ALLOC0x001) != 0 | |||
2395 | && (((asect->flags & (SEC_LOAD0x002 | SEC_HAS_CONTENTS0x200)) == 0) | |||
2396 | || (asect->flags & SEC_NEVER_LOAD0x400) != 0)) | |||
2397 | this_hdr->sh_type = SHT_NOBITS8; | |||
2398 | else | |||
2399 | this_hdr->sh_type = SHT_PROGBITS1; | |||
2400 | } | |||
2401 | ||||
2402 | switch (this_hdr->sh_type) | |||
2403 | { | |||
2404 | default: | |||
2405 | break; | |||
2406 | ||||
2407 | case SHT_STRTAB3: | |||
2408 | case SHT_INIT_ARRAY14: | |||
2409 | case SHT_FINI_ARRAY15: | |||
2410 | case SHT_PREINIT_ARRAY16: | |||
2411 | case SHT_NOTE7: | |||
2412 | case SHT_NOBITS8: | |||
2413 | case SHT_PROGBITS1: | |||
2414 | break; | |||
2415 | ||||
2416 | case SHT_HASH5: | |||
2417 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; | |||
2418 | break; | |||
2419 | ||||
2420 | case SHT_DYNSYM11: | |||
2421 | this_hdr->sh_entsize = bed->s->sizeof_sym; | |||
2422 | break; | |||
2423 | ||||
2424 | case SHT_DYNAMIC6: | |||
2425 | this_hdr->sh_entsize = bed->s->sizeof_dyn; | |||
2426 | break; | |||
2427 | ||||
2428 | case SHT_RELA4: | |||
2429 | if (get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->may_use_rela_p) | |||
2430 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |||
2431 | break; | |||
2432 | ||||
2433 | case SHT_REL9: | |||
2434 | if (get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->may_use_rel_p) | |||
2435 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |||
2436 | break; | |||
2437 | ||||
2438 | case SHT_GNU_versym0x6fffffff: | |||
2439 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); | |||
2440 | break; | |||
2441 | ||||
2442 | case SHT_GNU_verdef0x6ffffffd: | |||
2443 | this_hdr->sh_entsize = 0; | |||
2444 | /* objcopy or strip will copy over sh_info, but may not set | |||
2445 | cverdefs. The linker will set cverdefs, but sh_info will be | |||
2446 | zero. */ | |||
2447 | if (this_hdr->sh_info == 0) | |||
2448 | this_hdr->sh_info = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->cverdefs; | |||
2449 | else | |||
2450 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0{ if (!(((abfd) -> tdata.elf_obj_data)->cverdefs == 0 || this_hdr->sh_info == ((abfd) -> tdata.elf_obj_data)-> cverdefs)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,2451); } | |||
2451 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs){ if (!(((abfd) -> tdata.elf_obj_data)->cverdefs == 0 || this_hdr->sh_info == ((abfd) -> tdata.elf_obj_data)-> cverdefs)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,2451); }; | |||
2452 | break; | |||
2453 | ||||
2454 | case SHT_GNU_verneed0x6ffffffe: | |||
2455 | this_hdr->sh_entsize = 0; | |||
2456 | /* objcopy or strip will copy over sh_info, but may not set | |||
2457 | cverrefs. The linker will set cverrefs, but sh_info will be | |||
2458 | zero. */ | |||
2459 | if (this_hdr->sh_info == 0) | |||
2460 | this_hdr->sh_info = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->cverrefs; | |||
2461 | else | |||
2462 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0{ if (!(((abfd) -> tdata.elf_obj_data)->cverrefs == 0 || this_hdr->sh_info == ((abfd) -> tdata.elf_obj_data)-> cverrefs)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,2463); } | |||
2463 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs){ if (!(((abfd) -> tdata.elf_obj_data)->cverrefs == 0 || this_hdr->sh_info == ((abfd) -> tdata.elf_obj_data)-> cverrefs)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,2463); }; | |||
2464 | break; | |||
2465 | ||||
2466 | case SHT_GROUP17: | |||
2467 | this_hdr->sh_entsize = 4; | |||
2468 | break; | |||
2469 | } | |||
2470 | ||||
2471 | if ((asect->flags & SEC_ALLOC0x001) != 0) | |||
2472 | this_hdr->sh_flags |= SHF_ALLOC(1 << 1); | |||
2473 | if ((asect->flags & SEC_READONLY0x010) == 0) | |||
2474 | this_hdr->sh_flags |= SHF_WRITE(1 << 0); | |||
2475 | if ((asect->flags & SEC_CODE0x020) != 0) | |||
2476 | this_hdr->sh_flags |= SHF_EXECINSTR(1 << 2); | |||
2477 | if ((asect->flags & SEC_MERGE0x20000000) != 0) | |||
2478 | { | |||
2479 | this_hdr->sh_flags |= SHF_MERGE(1 << 4); | |||
2480 | this_hdr->sh_entsize = asect->entsize; | |||
2481 | if ((asect->flags & SEC_STRINGS0x40000000) != 0) | |||
2482 | this_hdr->sh_flags |= SHF_STRINGS(1 << 5); | |||
2483 | } | |||
2484 | if ((asect->flags & SEC_GROUP0x80000000) == 0 && elf_group_name (asect)(((struct bfd_elf_section_data*)asect->used_by_bfd)->group .name) != NULL((void*)0)) | |||
2485 | this_hdr->sh_flags |= SHF_GROUP(1 << 9); | |||
2486 | if ((asect->flags & SEC_THREAD_LOCAL0x1000) != 0) | |||
2487 | { | |||
2488 | this_hdr->sh_flags |= SHF_TLS(1 << 10); | |||
2489 | if (asect->_raw_size == 0 && (asect->flags & SEC_HAS_CONTENTS0x200) == 0) | |||
2490 | { | |||
2491 | struct bfd_link_order *o; | |||
2492 | ||||
2493 | this_hdr->sh_size = 0; | |||
2494 | for (o = asect->link_order_head; o != NULL((void*)0); o = o->next) | |||
2495 | if (this_hdr->sh_size < o->offset + o->size) | |||
2496 | this_hdr->sh_size = o->offset + o->size; | |||
2497 | if (this_hdr->sh_size) | |||
2498 | this_hdr->sh_type = SHT_NOBITS8; | |||
2499 | } | |||
2500 | } | |||
2501 | ||||
2502 | /* Check for processor-specific section types. */ | |||
2503 | if (bed->elf_backend_fake_sections | |||
2504 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |||
2505 | *failedptr = TRUE1; | |||
2506 | ||||
2507 | /* If the section has relocs, set up a section header for the | |||
2508 | SHT_REL[A] section. If two relocation sections are required for | |||
2509 | this section, it is up to the processor-specific back-end to | |||
2510 | create the other. */ | |||
2511 | if ((asect->flags & SEC_RELOC0x004) != 0 | |||
2512 | && !_bfd_elf_init_reloc_shdr (abfd, | |||
2513 | &elf_section_data (asect)((struct bfd_elf_section_data*)asect->used_by_bfd)->rel_hdr, | |||
2514 | asect, | |||
2515 | asect->use_rela_p)) | |||
2516 | *failedptr = TRUE1; | |||
2517 | } | |||
2518 | ||||
2519 | /* Fill in the contents of a SHT_GROUP section. */ | |||
2520 | ||||
2521 | void | |||
2522 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) | |||
2523 | { | |||
2524 | bfd_boolean *failedptr = failedptrarg; | |||
2525 | unsigned long symindx; | |||
2526 | asection *elt, *first; | |||
2527 | unsigned char *loc; | |||
2528 | struct bfd_link_order *l; | |||
2529 | bfd_boolean gas; | |||
2530 | ||||
2531 | if (elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd)->this_hdr.sh_type != SHT_GROUP17 | |||
2532 | || *failedptr) | |||
2533 | return; | |||
2534 | ||||
2535 | symindx = 0; | |||
2536 | if (elf_group_id (sec)(((struct bfd_elf_section_data*)sec->used_by_bfd)->group .id) != NULL((void*)0)) | |||
2537 | symindx = elf_group_id (sec)(((struct bfd_elf_section_data*)sec->used_by_bfd)->group .id)->udata.i; | |||
2538 | ||||
2539 | if (symindx == 0) | |||
2540 | { | |||
2541 | /* If called from the assembler, swap_out_syms will have set up | |||
2542 | elf_section_syms; If called for "ld -r", use target_index. */ | |||
2543 | if (elf_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> section_syms) != NULL((void*)0)) | |||
2544 | symindx = elf_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> section_syms)[sec->index]->udata.i; | |||
2545 | else | |||
2546 | symindx = sec->target_index; | |||
2547 | } | |||
2548 | elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd)->this_hdr.sh_info = symindx; | |||
2549 | ||||
2550 | /* The contents won't be allocated for "ld -r" or objcopy. */ | |||
2551 | gas = TRUE1; | |||
2552 | if (sec->contents == NULL((void*)0)) | |||
2553 | { | |||
2554 | gas = FALSE0; | |||
2555 | sec->contents = bfd_alloc (abfd, sec->_raw_size); | |||
2556 | ||||
2557 | /* Arrange for the section to be written out. */ | |||
2558 | elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd)->this_hdr.contents = sec->contents; | |||
2559 | if (sec->contents == NULL((void*)0)) | |||
2560 | { | |||
2561 | *failedptr = TRUE1; | |||
2562 | return; | |||
2563 | } | |||
2564 | } | |||
2565 | ||||
2566 | loc = sec->contents + sec->_raw_size; | |||
2567 | ||||
2568 | /* Get the pointer to the first section in the group that gas | |||
2569 | squirreled away here. objcopy arranges for this to be set to the | |||
2570 | start of the input section group. */ | |||
2571 | first = elt = elf_next_in_group (sec)(((struct bfd_elf_section_data*)sec->used_by_bfd)->next_in_group ); | |||
2572 | ||||
2573 | /* First element is a flag word. Rest of section is elf section | |||
2574 | indices for all the sections of the group. Write them backwards | |||
2575 | just to keep the group in the same order as given in .section | |||
2576 | directives, not that it matters. */ | |||
2577 | while (elt != NULL((void*)0)) | |||
2578 | { | |||
2579 | asection *s; | |||
2580 | unsigned int idx; | |||
2581 | ||||
2582 | loc -= 4; | |||
2583 | s = elt; | |||
2584 | if (!gas) | |||
2585 | s = s->output_section; | |||
2586 | idx = 0; | |||
2587 | if (s != NULL((void*)0)) | |||
2588 | idx = elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_idx; | |||
2589 | H_PUT_32 (abfd, idx, loc)((*((abfd)->xvec->bfd_h_putx32)) (idx, loc)); | |||
2590 | elt = elf_next_in_group (elt)(((struct bfd_elf_section_data*)elt->used_by_bfd)->next_in_group ); | |||
2591 | if (elt == first) | |||
2592 | break; | |||
2593 | } | |||
2594 | ||||
2595 | /* If this is a relocatable link, then the above did nothing because | |||
2596 | SEC is the output section. Look through the input sections | |||
2597 | instead. */ | |||
2598 | for (l = sec->link_order_head; l != NULL((void*)0); l = l->next) | |||
2599 | if (l->type == bfd_indirect_link_order | |||
2600 | && (elt = elf_next_in_group (l->u.indirect.section)(((struct bfd_elf_section_data*)l->u.indirect.section-> used_by_bfd)->next_in_group)) != NULL((void*)0)) | |||
2601 | do | |||
2602 | { | |||
2603 | loc -= 4; | |||
2604 | H_PUT_32 (abfd,((*((abfd)->xvec->bfd_h_putx32)) (((struct bfd_elf_section_data *)elt->output_section->used_by_bfd)->this_idx, loc)) | |||
2605 | elf_section_data (elt->output_section)->this_idx, loc)((*((abfd)->xvec->bfd_h_putx32)) (((struct bfd_elf_section_data *)elt->output_section->used_by_bfd)->this_idx, loc)); | |||
2606 | elt = elf_next_in_group (elt)(((struct bfd_elf_section_data*)elt->used_by_bfd)->next_in_group ); | |||
2607 | /* During a relocatable link, the lists are circular. */ | |||
2608 | } | |||
2609 | while (elt != elf_next_in_group (l->u.indirect.section)(((struct bfd_elf_section_data*)l->u.indirect.section-> used_by_bfd)->next_in_group)); | |||
2610 | ||||
2611 | /* With ld -r, merging SHT_GROUP sections results in wasted space | |||
2612 | due to allowing for the flag word on each input. We may well | |||
2613 | duplicate entries too. */ | |||
2614 | while ((loc -= 4) > sec->contents) | |||
2615 | H_PUT_32 (abfd, 0, loc)((*((abfd)->xvec->bfd_h_putx32)) (0, loc)); | |||
2616 | ||||
2617 | if (loc != sec->contents) | |||
2618 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c", 2618, __PRETTY_FUNCTION__ ); | |||
2619 | ||||
2620 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc)((*((abfd)->xvec->bfd_h_putx32)) (sec->flags & 0x100000 ? 0x1 : 0, loc)); | |||
2621 | } | |||
2622 | ||||
2623 | /* Assign all ELF section numbers. The dummy first section is handled here | |||
2624 | too. The link/info pointers for the standard section types are filled | |||
2625 | in here too, while we're at it. */ | |||
2626 | ||||
2627 | static bfd_boolean | |||
2628 | assign_section_numbers (bfd *abfd) | |||
2629 | { | |||
2630 | struct elf_obj_tdata *t = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data); | |||
2631 | asection *sec; | |||
2632 | unsigned int section_number, secn; | |||
2633 | Elf_Internal_Shdr **i_shdrp; | |||
2634 | bfd_size_type amt; | |||
2635 | ||||
2636 | section_number = 1; | |||
2637 | ||||
2638 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr)); | |||
2639 | ||||
2640 | for (sec = abfd->sections; sec; sec = sec->next) | |||
2641 | { | |||
2642 | struct bfd_elf_section_data *d = elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd); | |||
2643 | ||||
2644 | if (section_number == SHN_LORESERVE0xFF00) | |||
2645 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2646 | d->this_idx = section_number++; | |||
2647 | _bfd_elf_strtab_addref (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), d->this_hdr.sh_name); | |||
2648 | if ((sec->flags & SEC_RELOC0x004) == 0) | |||
2649 | d->rel_idx = 0; | |||
2650 | else | |||
2651 | { | |||
2652 | if (section_number == SHN_LORESERVE0xFF00) | |||
2653 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2654 | d->rel_idx = section_number++; | |||
2655 | _bfd_elf_strtab_addref (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), d->rel_hdr.sh_name); | |||
2656 | } | |||
2657 | ||||
2658 | if (d->rel_hdr2) | |||
2659 | { | |||
2660 | if (section_number == SHN_LORESERVE0xFF00) | |||
2661 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2662 | d->rel_idx2 = section_number++; | |||
2663 | _bfd_elf_strtab_addref (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), d->rel_hdr2->sh_name); | |||
2664 | } | |||
2665 | else | |||
2666 | d->rel_idx2 = 0; | |||
2667 | } | |||
2668 | ||||
2669 | if (section_number == SHN_LORESERVE0xFF00) | |||
2670 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2671 | t->shstrtab_section = section_number++; | |||
2672 | _bfd_elf_strtab_addref (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), t->shstrtab_hdr.sh_name); | |||
2673 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_shstrndx = t->shstrtab_section; | |||
2674 | ||||
2675 | if (bfd_get_symcount (abfd)((abfd)->symcount) > 0) | |||
2676 | { | |||
2677 | if (section_number == SHN_LORESERVE0xFF00) | |||
2678 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2679 | t->symtab_section = section_number++; | |||
2680 | _bfd_elf_strtab_addref (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), t->symtab_hdr.sh_name); | |||
2681 | if (section_number > SHN_LORESERVE0xFF00 - 2) | |||
2682 | { | |||
2683 | if (section_number == SHN_LORESERVE0xFF00) | |||
2684 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2685 | t->symtab_shndx_section = section_number++; | |||
2686 | t->symtab_shndx_hdr.sh_name | |||
2687 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), | |||
2688 | ".symtab_shndx", FALSE0); | |||
2689 | if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1) | |||
2690 | return FALSE0; | |||
2691 | } | |||
2692 | if (section_number == SHN_LORESERVE0xFF00) | |||
2693 | section_number += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2694 | t->strtab_section = section_number++; | |||
2695 | _bfd_elf_strtab_addref (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), t->strtab_hdr.sh_name); | |||
2696 | } | |||
2697 | ||||
2698 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr)); | |||
2699 | t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr)); | |||
2700 | ||||
2701 | elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections) = section_number; | |||
2702 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_shnum = section_number; | |||
2703 | if (section_number > SHN_LORESERVE0xFF00) | |||
2704 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_shnum -= SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
2705 | ||||
2706 | /* Set up the list of section header pointers, in agreement with the | |||
2707 | indices. */ | |||
2708 | amt = section_number * sizeof (Elf_Internal_Shdr *); | |||
2709 | i_shdrp = bfd_zalloc (abfd, amt); | |||
2710 | if (i_shdrp == NULL((void*)0)) | |||
2711 | return FALSE0; | |||
2712 | ||||
2713 | amt = sizeof (Elf_Internal_Shdr); | |||
2714 | i_shdrp[0] = bfd_zalloc (abfd, amt); | |||
2715 | if (i_shdrp[0] == NULL((void*)0)) | |||
2716 | { | |||
2717 | bfd_release (abfd, i_shdrp); | |||
2718 | return FALSE0; | |||
2719 | } | |||
2720 | ||||
2721 | elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr) = i_shdrp; | |||
2722 | ||||
2723 | i_shdrp[t->shstrtab_section] = &t->shstrtab_hdr; | |||
2724 | if (bfd_get_symcount (abfd)((abfd)->symcount) > 0) | |||
2725 | { | |||
2726 | i_shdrp[t->symtab_section] = &t->symtab_hdr; | |||
2727 | if (elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections) > SHN_LORESERVE0xFF00) | |||
2728 | { | |||
2729 | i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr; | |||
2730 | t->symtab_shndx_hdr.sh_link = t->symtab_section; | |||
2731 | } | |||
2732 | i_shdrp[t->strtab_section] = &t->strtab_hdr; | |||
2733 | t->symtab_hdr.sh_link = t->strtab_section; | |||
2734 | } | |||
2735 | for (sec = abfd->sections; sec; sec = sec->next) | |||
2736 | { | |||
2737 | struct bfd_elf_section_data *d = elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd); | |||
2738 | asection *s; | |||
2739 | const char *name; | |||
2740 | ||||
2741 | i_shdrp[d->this_idx] = &d->this_hdr; | |||
2742 | if (d->rel_idx != 0) | |||
2743 | i_shdrp[d->rel_idx] = &d->rel_hdr; | |||
2744 | if (d->rel_idx2 != 0) | |||
2745 | i_shdrp[d->rel_idx2] = d->rel_hdr2; | |||
2746 | ||||
2747 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |||
2748 | ||||
2749 | /* sh_link of a reloc section is the section index of the symbol | |||
2750 | table. sh_info is the section index of the section to which | |||
2751 | the relocation entries apply. */ | |||
2752 | if (d->rel_idx != 0) | |||
2753 | { | |||
2754 | d->rel_hdr.sh_link = t->symtab_section; | |||
2755 | d->rel_hdr.sh_info = d->this_idx; | |||
2756 | } | |||
2757 | if (d->rel_idx2 != 0) | |||
2758 | { | |||
2759 | d->rel_hdr2->sh_link = t->symtab_section; | |||
2760 | d->rel_hdr2->sh_info = d->this_idx; | |||
2761 | } | |||
2762 | ||||
2763 | switch (d->this_hdr.sh_type) | |||
2764 | { | |||
2765 | case SHT_REL9: | |||
2766 | case SHT_RELA4: | |||
2767 | /* A reloc section which we are treating as a normal BFD | |||
2768 | section. sh_link is the section index of the symbol | |||
2769 | table. sh_info is the section index of the section to | |||
2770 | which the relocation entries apply. We assume that an | |||
2771 | allocated reloc section uses the dynamic symbol table. | |||
2772 | FIXME: How can we be sure? */ | |||
2773 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |||
2774 | if (s != NULL((void*)0)) | |||
2775 | d->this_hdr.sh_link = elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_idx; | |||
2776 | ||||
2777 | /* We look up the section the relocs apply to by name. */ | |||
2778 | name = sec->name; | |||
2779 | if (d->this_hdr.sh_type == SHT_REL9) | |||
2780 | name += 4; | |||
2781 | else | |||
2782 | name += 5; | |||
2783 | s = bfd_get_section_by_name (abfd, name); | |||
2784 | if (s != NULL((void*)0)) | |||
2785 | d->this_hdr.sh_info = elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_idx; | |||
2786 | break; | |||
2787 | ||||
2788 | case SHT_STRTAB3: | |||
2789 | /* We assume that a section named .stab*str is a stabs | |||
2790 | string section. We look for a section with the same name | |||
2791 | but without the trailing ``str'', and set its sh_link | |||
2792 | field to point to this section. */ | |||
2793 | if (strncmp (sec->name, ".stab", sizeof ".stab" - 1) == 0 | |||
2794 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) | |||
2795 | { | |||
2796 | size_t len; | |||
2797 | char *alc; | |||
2798 | ||||
2799 | len = strlen (sec->name); | |||
2800 | alc = bfd_malloc (len - 2); | |||
2801 | if (alc == NULL((void*)0)) | |||
2802 | return FALSE0; | |||
2803 | memcpy (alc, sec->name, len - 3); | |||
2804 | alc[len - 3] = '\0'; | |||
2805 | s = bfd_get_section_by_name (abfd, alc); | |||
2806 | free (alc); | |||
2807 | if (s != NULL((void*)0)) | |||
2808 | { | |||
2809 | elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_link = d->this_idx; | |||
2810 | ||||
2811 | /* This is a .stab section. */ | |||
2812 | if (elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_entsize == 0) | |||
2813 | elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_entsize | |||
2814 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |||
2815 | } | |||
2816 | } | |||
2817 | break; | |||
2818 | ||||
2819 | case SHT_DYNAMIC6: | |||
2820 | case SHT_DYNSYM11: | |||
2821 | case SHT_GNU_verneed0x6ffffffe: | |||
2822 | case SHT_GNU_verdef0x6ffffffd: | |||
2823 | /* sh_link is the section header index of the string table | |||
2824 | used for the dynamic entries, or the symbol table, or the | |||
2825 | version strings. */ | |||
2826 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |||
2827 | if (s != NULL((void*)0)) | |||
2828 | d->this_hdr.sh_link = elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_idx; | |||
2829 | break; | |||
2830 | ||||
2831 | case SHT_HASH5: | |||
2832 | case SHT_GNU_versym0x6fffffff: | |||
2833 | /* sh_link is the section header index of the symbol table | |||
2834 | this hash table or version table is for. */ | |||
2835 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |||
2836 | if (s != NULL((void*)0)) | |||
2837 | d->this_hdr.sh_link = elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_idx; | |||
2838 | break; | |||
2839 | ||||
2840 | case SHT_GROUP17: | |||
2841 | d->this_hdr.sh_link = t->symtab_section; | |||
2842 | } | |||
2843 | } | |||
2844 | ||||
2845 | for (secn = 1; secn < section_number; ++secn) | |||
2846 | if (i_shdrp[secn] == NULL((void*)0)) | |||
2847 | i_shdrp[secn] = i_shdrp[0]; | |||
2848 | else | |||
2849 | i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr), | |||
2850 | i_shdrp[secn]->sh_name); | |||
2851 | return TRUE1; | |||
2852 | } | |||
2853 | ||||
2854 | /* Map symbol from it's internal number to the external number, moving | |||
2855 | all local symbols to be at the head of the list. */ | |||
2856 | ||||
2857 | static int | |||
2858 | sym_is_global (bfd *abfd, asymbol *sym) | |||
2859 | { | |||
2860 | /* If the backend has a special mapping, use it. */ | |||
2861 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
2862 | if (bed->elf_backend_sym_is_global) | |||
2863 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |||
2864 | ||||
2865 | return ((sym->flags & (BSF_GLOBAL0x02 | BSF_WEAK0x80)) != 0 | |||
2866 | || bfd_is_und_section (bfd_get_section (sym))((((sym)->section)) == ((asection *) &bfd_und_section) ) | |||
2867 | || bfd_is_com_section (bfd_get_section (sym))(((((sym)->section))->flags & 0x8000) != 0)); | |||
2868 | } | |||
2869 | ||||
2870 | static bfd_boolean | |||
2871 | elf_map_symbols (bfd *abfd) | |||
2872 | { | |||
2873 | unsigned int symcount = bfd_get_symcount (abfd)((abfd)->symcount); | |||
2874 | asymbol **syms = bfd_get_outsymbols (abfd)((abfd)->outsymbols); | |||
2875 | asymbol **sect_syms; | |||
2876 | unsigned int num_locals = 0; | |||
2877 | unsigned int num_globals = 0; | |||
2878 | unsigned int num_locals2 = 0; | |||
2879 | unsigned int num_globals2 = 0; | |||
2880 | int max_index = 0; | |||
2881 | unsigned int idx; | |||
2882 | asection *asect; | |||
2883 | asymbol **new_syms; | |||
2884 | bfd_size_type amt; | |||
2885 | ||||
2886 | #ifdef DEBUG | |||
2887 | fprintf (stderr(&__sF[2]), "elf_map_symbols\n"); | |||
2888 | fflush (stderr(&__sF[2])); | |||
2889 | #endif | |||
2890 | ||||
2891 | for (asect = abfd->sections; asect; asect = asect->next) | |||
2892 | { | |||
2893 | if (max_index < asect->index) | |||
2894 | max_index = asect->index; | |||
2895 | } | |||
2896 | ||||
2897 | max_index++; | |||
2898 | amt = max_index * sizeof (asymbol *); | |||
2899 | sect_syms = bfd_zalloc (abfd, amt); | |||
2900 | if (sect_syms == NULL((void*)0)) | |||
2901 | return FALSE0; | |||
2902 | elf_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> section_syms) = sect_syms; | |||
2903 | elf_num_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> num_section_syms) = max_index; | |||
2904 | ||||
2905 | /* Init sect_syms entries for any section symbols we have already | |||
2906 | decided to output. */ | |||
2907 | for (idx = 0; idx < symcount; idx++) | |||
2908 | { | |||
2909 | asymbol *sym = syms[idx]; | |||
2910 | ||||
2911 | if ((sym->flags & BSF_SECTION_SYM0x100) != 0 | |||
2912 | && sym->value == 0) | |||
2913 | { | |||
2914 | asection *sec; | |||
2915 | ||||
2916 | sec = sym->section; | |||
2917 | ||||
2918 | if (sec->owner != NULL((void*)0)) | |||
2919 | { | |||
2920 | if (sec->owner != abfd) | |||
2921 | { | |||
2922 | if (sec->output_offset != 0) | |||
2923 | continue; | |||
2924 | ||||
2925 | sec = sec->output_section; | |||
2926 | ||||
2927 | /* Empty sections in the input files may have had a | |||
2928 | section symbol created for them. (See the comment | |||
2929 | near the end of _bfd_generic_link_output_symbols in | |||
2930 | linker.c). If the linker script discards such | |||
2931 | sections then we will reach this point. Since we know | |||
2932 | that we cannot avoid this case, we detect it and skip | |||
2933 | the abort and the assignment to the sect_syms array. | |||
2934 | To reproduce this particular case try running the | |||
2935 | linker testsuite test ld-scripts/weak.exp for an ELF | |||
2936 | port that uses the generic linker. */ | |||
2937 | if (sec->owner == NULL((void*)0)) | |||
2938 | continue; | |||
2939 | ||||
2940 | BFD_ASSERT (sec->owner == abfd){ if (!(sec->owner == abfd)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,2940); }; | |||
2941 | } | |||
2942 | sect_syms[sec->index] = syms[idx]; | |||
2943 | } | |||
2944 | } | |||
2945 | } | |||
2946 | ||||
2947 | /* Classify all of the symbols. */ | |||
2948 | for (idx = 0; idx < symcount; idx++) | |||
2949 | { | |||
2950 | if (!sym_is_global (abfd, syms[idx])) | |||
2951 | num_locals++; | |||
2952 | else | |||
2953 | num_globals++; | |||
2954 | } | |||
2955 | ||||
2956 | /* We will be adding a section symbol for each BFD section. Most normal | |||
2957 | sections will already have a section symbol in outsymbols, but | |||
2958 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |||
2959 | at least in that case. */ | |||
2960 | for (asect = abfd->sections; asect; asect = asect->next) | |||
2961 | { | |||
2962 | if (sect_syms[asect->index] == NULL((void*)0)) | |||
2963 | { | |||
2964 | if (!sym_is_global (abfd, asect->symbol)) | |||
2965 | num_locals++; | |||
2966 | else | |||
2967 | num_globals++; | |||
2968 | } | |||
2969 | } | |||
2970 | ||||
2971 | /* Now sort the symbols so the local symbols are first. */ | |||
2972 | amt = (num_locals + num_globals) * sizeof (asymbol *); | |||
2973 | new_syms = bfd_alloc (abfd, amt); | |||
2974 | ||||
2975 | if (new_syms == NULL((void*)0)) | |||
2976 | return FALSE0; | |||
2977 | ||||
2978 | for (idx = 0; idx < symcount; idx++) | |||
2979 | { | |||
2980 | asymbol *sym = syms[idx]; | |||
2981 | unsigned int i; | |||
2982 | ||||
2983 | if (!sym_is_global (abfd, sym)) | |||
2984 | i = num_locals2++; | |||
2985 | else | |||
2986 | i = num_locals + num_globals2++; | |||
2987 | new_syms[i] = sym; | |||
2988 | sym->udata.i = i + 1; | |||
2989 | } | |||
2990 | for (asect = abfd->sections; asect; asect = asect->next) | |||
2991 | { | |||
2992 | if (sect_syms[asect->index] == NULL((void*)0)) | |||
2993 | { | |||
2994 | asymbol *sym = asect->symbol; | |||
2995 | unsigned int i; | |||
2996 | ||||
2997 | sect_syms[asect->index] = sym; | |||
2998 | if (!sym_is_global (abfd, sym)) | |||
2999 | i = num_locals2++; | |||
3000 | else | |||
3001 | i = num_locals + num_globals2++; | |||
3002 | new_syms[i] = sym; | |||
3003 | sym->udata.i = i + 1; | |||
3004 | } | |||
3005 | } | |||
3006 | ||||
3007 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |||
3008 | ||||
3009 | elf_num_locals (abfd)(((abfd) -> tdata.elf_obj_data) -> num_locals) = num_locals; | |||
3010 | elf_num_globals (abfd)(((abfd) -> tdata.elf_obj_data) -> num_globals) = num_globals; | |||
3011 | return TRUE1; | |||
3012 | } | |||
3013 | ||||
3014 | /* Align to the maximum file alignment that could be required for any | |||
3015 | ELF data structure. */ | |||
3016 | ||||
3017 | static inline file_ptr | |||
3018 | align_file_position (file_ptr off, int align) | |||
3019 | { | |||
3020 | return (off + align - 1) & ~(align - 1); | |||
3021 | } | |||
3022 | ||||
3023 | /* Assign a file position to a section, optionally aligning to the | |||
3024 | required section alignment. */ | |||
3025 | ||||
3026 | file_ptr | |||
3027 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |||
3028 | file_ptr offset, | |||
3029 | bfd_boolean align) | |||
3030 | { | |||
3031 | if (align) | |||
3032 | { | |||
3033 | unsigned int al; | |||
3034 | ||||
3035 | al = i_shdrp->sh_addralign; | |||
3036 | if (al > 1) | |||
3037 | offset = BFD_ALIGN (offset, al)((((bfd_vma) (offset) + (al) - 1) >= (bfd_vma) (offset)) ? (((bfd_vma) (offset) + ((al) - 1)) & ~ (bfd_vma) ((al)-1 )) : ~ (bfd_vma) 0); | |||
3038 | } | |||
3039 | i_shdrp->sh_offset = offset; | |||
3040 | if (i_shdrp->bfd_section != NULL((void*)0)) | |||
3041 | i_shdrp->bfd_section->filepos = offset; | |||
3042 | if (i_shdrp->sh_type != SHT_NOBITS8) | |||
3043 | offset += i_shdrp->sh_size; | |||
3044 | return offset; | |||
3045 | } | |||
3046 | ||||
3047 | /* Compute the file positions we are going to put the sections at, and | |||
3048 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |||
3049 | is not NULL, this is being called by the ELF backend linker. */ | |||
3050 | ||||
3051 | bfd_boolean | |||
3052 | _bfd_elf_compute_section_file_positions (bfd *abfd, | |||
3053 | struct bfd_link_info *link_info) | |||
3054 | { | |||
3055 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
3056 | bfd_boolean failed; | |||
3057 | struct bfd_strtab_hash *strtab; | |||
3058 | Elf_Internal_Shdr *shstrtab_hdr; | |||
3059 | ||||
3060 | if (abfd->output_has_begun
| |||
3061 | return TRUE1; | |||
3062 | ||||
3063 | /* Do any elf backend specific processing first. */ | |||
3064 | if (bed->elf_backend_begin_write_processing) | |||
3065 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |||
3066 | ||||
3067 | if (! prep_headers (abfd)) | |||
3068 | return FALSE0; | |||
3069 | ||||
3070 | /* Post process the headers if necessary. */ | |||
3071 | if (bed->elf_backend_post_process_headers) | |||
3072 | (*bed->elf_backend_post_process_headers) (abfd, link_info); | |||
3073 | ||||
3074 | failed = FALSE0; | |||
3075 | bfd_map_over_sections (abfd, elf_fake_sections, &failed); | |||
3076 | if (failed) | |||
3077 | return FALSE0; | |||
3078 | ||||
3079 | if (!assign_section_numbers (abfd)) | |||
3080 | return FALSE0; | |||
3081 | ||||
3082 | /* The backend linker builds symbol table information itself. */ | |||
3083 | if (link_info
| |||
3084 | { | |||
3085 | /* Non-zero if doing a relocatable link. */ | |||
3086 | int relocatable_p = ! (abfd->flags & (EXEC_P0x02 | DYNAMIC0x40)); | |||
3087 | ||||
3088 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |||
3089 | return FALSE0; | |||
3090 | } | |||
3091 | ||||
3092 | if (link_info
| |||
3093 | { | |||
3094 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); | |||
3095 | if (failed) | |||
3096 | return FALSE0; | |||
3097 | } | |||
3098 | ||||
3099 | shstrtab_hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_hdr; | |||
3100 | /* sh_name was set in prep_headers. */ | |||
3101 | shstrtab_hdr->sh_type = SHT_STRTAB3; | |||
3102 | shstrtab_hdr->sh_flags = 0; | |||
3103 | shstrtab_hdr->sh_addr = 0; | |||
3104 | shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr)); | |||
3105 | shstrtab_hdr->sh_entsize = 0; | |||
3106 | shstrtab_hdr->sh_link = 0; | |||
3107 | shstrtab_hdr->sh_info = 0; | |||
3108 | /* sh_offset is set in assign_file_positions_except_relocs. */ | |||
3109 | shstrtab_hdr->sh_addralign = 1; | |||
3110 | ||||
3111 | if (!assign_file_positions_except_relocs (abfd, link_info)) | |||
3112 | return FALSE0; | |||
3113 | ||||
3114 | if (link_info
| |||
3115 | { | |||
3116 | file_ptr off; | |||
3117 | Elf_Internal_Shdr *hdr; | |||
3118 | ||||
3119 | off = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos; | |||
3120 | ||||
3121 | hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr; | |||
3122 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE1); | |||
3123 | ||||
3124 | hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_shndx_hdr; | |||
3125 | if (hdr->sh_size != 0) | |||
3126 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE1); | |||
3127 | ||||
3128 | hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->strtab_hdr; | |||
3129 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE1); | |||
3130 | ||||
3131 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos = off; | |||
3132 | ||||
3133 | /* Now that we know where the .strtab section goes, write it | |||
3134 | out. */ | |||
3135 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET0) != 0 | |||
3136 | || ! _bfd_stringtab_emit (abfd, strtab)) | |||
| ||||
3137 | return FALSE0; | |||
3138 | _bfd_stringtab_free (strtab); | |||
3139 | } | |||
3140 | ||||
3141 | abfd->output_has_begun = TRUE1; | |||
3142 | ||||
3143 | return TRUE1; | |||
3144 | } | |||
3145 | ||||
3146 | /* Create a mapping from a set of sections to a program segment. */ | |||
3147 | ||||
3148 | static struct elf_segment_map * | |||
3149 | make_mapping (bfd *abfd, | |||
3150 | asection **sections, | |||
3151 | unsigned int from, | |||
3152 | unsigned int to, | |||
3153 | bfd_boolean phdr) | |||
3154 | { | |||
3155 | struct elf_segment_map *m; | |||
3156 | unsigned int i; | |||
3157 | asection **hdrpp; | |||
3158 | bfd_size_type amt; | |||
3159 | ||||
3160 | amt = sizeof (struct elf_segment_map); | |||
3161 | amt += (to - from - 1) * sizeof (asection *); | |||
3162 | m = bfd_zalloc (abfd, amt); | |||
3163 | if (m == NULL((void*)0)) | |||
3164 | return NULL((void*)0); | |||
3165 | m->next = NULL((void*)0); | |||
3166 | m->p_type = PT_LOAD1; | |||
3167 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |||
3168 | m->sections[i - from] = *hdrpp; | |||
3169 | m->count = to - from; | |||
3170 | ||||
3171 | if (from == 0 && phdr) | |||
3172 | { | |||
3173 | /* Include the headers in the first PT_LOAD segment. */ | |||
3174 | m->includes_filehdr = 1; | |||
3175 | m->includes_phdrs = 1; | |||
3176 | } | |||
3177 | ||||
3178 | return m; | |||
3179 | } | |||
3180 | ||||
3181 | /* Set up a mapping from BFD sections to program segments. */ | |||
3182 | ||||
3183 | static bfd_boolean | |||
3184 | map_sections_to_segments (bfd *abfd) | |||
3185 | { | |||
3186 | asection **sections = NULL((void*)0); | |||
3187 | asection *s; | |||
3188 | unsigned int i; | |||
3189 | unsigned int count; | |||
3190 | struct elf_segment_map *mfirst; | |||
3191 | struct elf_segment_map **pm; | |||
3192 | struct elf_segment_map *m; | |||
3193 | asection *last_hdr; | |||
3194 | bfd_vma last_size; | |||
3195 | unsigned int phdr_index; | |||
3196 | bfd_vma maxpagesize; | |||
3197 | asection **hdrpp; | |||
3198 | bfd_boolean phdr_in_segment = TRUE1; | |||
3199 | bfd_boolean writable; | |||
3200 | int tls_count = 0; | |||
3201 | asection *first_tls = NULL((void*)0); | |||
3202 | asection *dynsec, *eh_frame_hdr, *randomdata; | |||
3203 | bfd_size_type amt; | |||
3204 | ||||
3205 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map != NULL((void*)0)) | |||
3206 | return TRUE1; | |||
3207 | ||||
3208 | if (bfd_count_sections (abfd)((abfd)->section_count) == 0) | |||
3209 | return TRUE1; | |||
3210 | ||||
3211 | /* Select the allocated sections, and sort them. */ | |||
3212 | ||||
3213 | amt = bfd_count_sections (abfd)((abfd)->section_count) * sizeof (asection *); | |||
3214 | sections = bfd_malloc (amt); | |||
3215 | if (sections == NULL((void*)0)) | |||
3216 | goto error_return; | |||
3217 | ||||
3218 | i = 0; | |||
3219 | for (s = abfd->sections; s != NULL((void*)0); s = s->next) | |||
3220 | { | |||
3221 | if ((s->flags & SEC_ALLOC0x001) != 0) | |||
3222 | { | |||
3223 | sections[i] = s; | |||
3224 | ++i; | |||
3225 | } | |||
3226 | } | |||
3227 | BFD_ASSERT (i <= bfd_count_sections (abfd)){ if (!(i <= ((abfd)->section_count))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,3227); }; | |||
3228 | count = i; | |||
3229 | ||||
3230 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); | |||
3231 | ||||
3232 | /* Build the mapping. */ | |||
3233 | ||||
3234 | mfirst = NULL((void*)0); | |||
3235 | pm = &mfirst; | |||
3236 | ||||
3237 | /* If we have a .interp section, or are creating an executable and | |||
3238 | have a .dynamic section, then create a PT_PHDR segment for the | |||
3239 | program headers. */ | |||
3240 | s = bfd_get_section_by_name (abfd, ".interp"); | |||
3241 | if ((s != NULL((void*)0) && (s->flags & SEC_LOAD0x002) != 0) || | |||
3242 | (bfd_get_section_by_name (abfd, ".dynamic") && | |||
3243 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->executable)) | |||
3244 | { | |||
3245 | amt = sizeof (struct elf_segment_map); | |||
3246 | m = bfd_zalloc (abfd, amt); | |||
3247 | if (m == NULL((void*)0)) | |||
3248 | goto error_return; | |||
3249 | m->next = NULL((void*)0); | |||
3250 | m->p_type = PT_PHDR6; | |||
3251 | /* FIXME: UnixWare and Solaris set PF_X, Irix 5 does not. */ | |||
3252 | m->p_flags = PF_R(1 << 2) | PF_X(1 << 0); | |||
3253 | m->p_flags_valid = 1; | |||
3254 | m->includes_phdrs = 1; | |||
3255 | ||||
3256 | *pm = m; | |||
3257 | pm = &m->next; | |||
3258 | } | |||
3259 | ||||
3260 | /* If we have a .interp section, then create a PT_INTERP segment for | |||
3261 | the .interp section. */ | |||
3262 | if (s != NULL((void*)0) && (s->flags & SEC_LOAD0x002) != 0) | |||
3263 | { | |||
3264 | amt = sizeof (struct elf_segment_map); | |||
3265 | m = bfd_zalloc (abfd, amt); | |||
3266 | if (m == NULL((void*)0)) | |||
3267 | goto error_return; | |||
3268 | m->next = NULL((void*)0); | |||
3269 | m->p_type = PT_INTERP3; | |||
3270 | m->count = 1; | |||
3271 | m->sections[0] = s; | |||
3272 | ||||
3273 | *pm = m; | |||
3274 | pm = &m->next; | |||
3275 | } | |||
3276 | ||||
3277 | /* Look through the sections. We put sections in the same program | |||
3278 | segment when the start of the second section can be placed within | |||
3279 | a few bytes of the end of the first section. */ | |||
3280 | last_hdr = NULL((void*)0); | |||
3281 | last_size = 0; | |||
3282 | phdr_index = 0; | |||
3283 | maxpagesize = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->maxpagesize; | |||
3284 | writable = FALSE0; | |||
3285 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |||
3286 | if (dynsec != NULL((void*)0) | |||
3287 | && (dynsec->flags & SEC_LOAD0x002) == 0) | |||
3288 | dynsec = NULL((void*)0); | |||
3289 | ||||
3290 | /* Deal with -Ttext or something similar such that the first section | |||
3291 | is not adjacent to the program headers. This is an | |||
3292 | approximation, since at this point we don't know exactly how many | |||
3293 | program headers we will need. */ | |||
3294 | if (count > 0) | |||
3295 | { | |||
3296 | bfd_size_type phdr_size; | |||
3297 | ||||
3298 | phdr_size = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size; | |||
3299 | if (phdr_size == 0) | |||
3300 | phdr_size = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->sizeof_phdr; | |||
3301 | if ((abfd->flags & D_PAGED0x100) == 0 | |||
3302 | || sections[0]->lma < phdr_size | |||
3303 | || sections[0]->lma % maxpagesize < phdr_size % maxpagesize) | |||
3304 | phdr_in_segment = FALSE0; | |||
3305 | } | |||
3306 | ||||
3307 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) | |||
3308 | { | |||
3309 | asection *hdr; | |||
3310 | bfd_boolean new_segment; | |||
3311 | ||||
3312 | hdr = *hdrpp; | |||
3313 | ||||
3314 | /* See if this section and the last one will fit in the same | |||
3315 | segment. */ | |||
3316 | ||||
3317 | if (last_hdr == NULL((void*)0)) | |||
3318 | { | |||
3319 | /* If we don't have a segment yet, then we don't need a new | |||
3320 | one (we build the last one after this loop). */ | |||
3321 | new_segment = FALSE0; | |||
3322 | } | |||
3323 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |||
3324 | { | |||
3325 | /* If this section has a different relation between the | |||
3326 | virtual address and the load address, then we need a new | |||
3327 | segment. */ | |||
3328 | new_segment = TRUE1; | |||
3329 | } | |||
3330 | else if (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize)((((bfd_vma) (last_hdr->lma + last_size) + (maxpagesize) - 1) >= (bfd_vma) (last_hdr->lma + last_size)) ? (((bfd_vma ) (last_hdr->lma + last_size) + ((maxpagesize) - 1)) & ~ (bfd_vma) ((maxpagesize)-1)) : ~ (bfd_vma) 0) | |||
3331 | < BFD_ALIGN (hdr->lma, maxpagesize)((((bfd_vma) (hdr->lma) + (maxpagesize) - 1) >= (bfd_vma ) (hdr->lma)) ? (((bfd_vma) (hdr->lma) + ((maxpagesize) - 1)) & ~ (bfd_vma) ((maxpagesize)-1)) : ~ (bfd_vma) 0)) | |||
3332 | { | |||
3333 | /* If putting this section in this segment would force us to | |||
3334 | skip a page in the segment, then we need a new segment. */ | |||
3335 | new_segment = TRUE1; | |||
3336 | } | |||
3337 | else if ((last_hdr->flags & (SEC_LOAD0x002 | SEC_THREAD_LOCAL0x1000)) == 0 | |||
3338 | && (hdr->flags & (SEC_LOAD0x002 | SEC_THREAD_LOCAL0x1000)) != 0) | |||
3339 | { | |||
3340 | /* We don't want to put a loadable section after a | |||
3341 | nonloadable section in the same segment. | |||
3342 | Consider .tbss sections as loadable for this purpose. */ | |||
3343 | new_segment = TRUE1; | |||
3344 | } | |||
3345 | else if ((abfd->flags & D_PAGED0x100) == 0) | |||
3346 | { | |||
3347 | /* If the file is not demand paged, which means that we | |||
3348 | don't require the sections to be correctly aligned in the | |||
3349 | file, then there is no other reason for a new segment. */ | |||
3350 | new_segment = FALSE0; | |||
3351 | } | |||
3352 | else if (! writable | |||
3353 | && (hdr->flags & SEC_READONLY0x010) == 0 | |||
3354 | && (((last_hdr->lma + last_size - 1) | |||
3355 | & ~(maxpagesize - 1)) | |||
3356 | != (hdr->lma & ~(maxpagesize - 1)))) | |||
3357 | { | |||
3358 | /* We don't want to put a writable section in a read only | |||
3359 | segment, unless they are on the same page in memory | |||
3360 | anyhow. We already know that the last section does not | |||
3361 | bring us past the current section on the page, so the | |||
3362 | only case in which the new section is not on the same | |||
3363 | page as the previous section is when the previous section | |||
3364 | ends precisely on a page boundary. */ | |||
3365 | new_segment = TRUE1; | |||
3366 | } | |||
3367 | else | |||
3368 | { | |||
3369 | /* Otherwise, we can use the same segment. */ | |||
3370 | new_segment = FALSE0; | |||
3371 | } | |||
3372 | ||||
3373 | if (! new_segment) | |||
3374 | { | |||
3375 | if ((hdr->flags & SEC_READONLY0x010) == 0) | |||
3376 | writable = TRUE1; | |||
3377 | last_hdr = hdr; | |||
3378 | /* .tbss sections effectively have zero size. */ | |||
3379 | if ((hdr->flags & (SEC_THREAD_LOCAL0x1000 | SEC_LOAD0x002)) != SEC_THREAD_LOCAL0x1000) | |||
3380 | last_size = hdr->_raw_size; | |||
3381 | else | |||
3382 | last_size = 0; | |||
3383 | continue; | |||
3384 | } | |||
3385 | ||||
3386 | /* We need a new program segment. We must create a new program | |||
3387 | header holding all the sections from phdr_index until hdr. */ | |||
3388 | ||||
3389 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |||
3390 | if (m == NULL((void*)0)) | |||
3391 | goto error_return; | |||
3392 | ||||
3393 | *pm = m; | |||
3394 | pm = &m->next; | |||
3395 | ||||
3396 | if ((hdr->flags & SEC_READONLY0x010) == 0) | |||
3397 | writable = TRUE1; | |||
3398 | else | |||
3399 | writable = FALSE0; | |||
3400 | ||||
3401 | last_hdr = hdr; | |||
3402 | /* .tbss sections effectively have zero size. */ | |||
3403 | if ((hdr->flags & (SEC_THREAD_LOCAL0x1000 | SEC_LOAD0x002)) != SEC_THREAD_LOCAL0x1000) | |||
3404 | last_size = hdr->_raw_size; | |||
3405 | else | |||
3406 | last_size = 0; | |||
3407 | phdr_index = i; | |||
3408 | phdr_in_segment = FALSE0; | |||
3409 | } | |||
3410 | ||||
3411 | /* Create a final PT_LOAD program segment. */ | |||
3412 | if (last_hdr != NULL((void*)0)) | |||
3413 | { | |||
3414 | m = make_mapping (abfd, sections, phdr_index, i, phdr_in_segment); | |||
3415 | if (m == NULL((void*)0)) | |||
3416 | goto error_return; | |||
3417 | ||||
3418 | *pm = m; | |||
3419 | pm = &m->next; | |||
3420 | } | |||
3421 | ||||
3422 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ | |||
3423 | if (dynsec != NULL((void*)0)) | |||
3424 | { | |||
3425 | amt = sizeof (struct elf_segment_map); | |||
3426 | m = bfd_zalloc (abfd, amt); | |||
3427 | if (m == NULL((void*)0)) | |||
3428 | goto error_return; | |||
3429 | m->next = NULL((void*)0); | |||
3430 | m->p_type = PT_DYNAMIC2; | |||
3431 | m->count = 1; | |||
3432 | m->sections[0] = dynsec; | |||
3433 | ||||
3434 | *pm = m; | |||
3435 | pm = &m->next; | |||
3436 | } | |||
3437 | ||||
3438 | /* For each loadable .note section, add a PT_NOTE segment. We don't | |||
3439 | use bfd_get_section_by_name, because if we link together | |||
3440 | nonloadable .note sections and loadable .note sections, we will | |||
3441 | generate two .note sections in the output file. FIXME: Using | |||
3442 | names for section types is bogus anyhow. */ | |||
3443 | for (s = abfd->sections; s != NULL((void*)0); s = s->next) | |||
3444 | { | |||
3445 | if ((s->flags & SEC_LOAD0x002) != 0 | |||
3446 | && strncmp (s->name, ".note", 5) == 0) | |||
3447 | { | |||
3448 | amt = sizeof (struct elf_segment_map); | |||
3449 | m = bfd_zalloc (abfd, amt); | |||
3450 | if (m == NULL((void*)0)) | |||
3451 | goto error_return; | |||
3452 | m->next = NULL((void*)0); | |||
3453 | m->p_type = PT_NOTE4; | |||
3454 | m->count = 1; | |||
3455 | m->sections[0] = s; | |||
3456 | ||||
3457 | *pm = m; | |||
3458 | pm = &m->next; | |||
3459 | } | |||
3460 | if (s->flags & SEC_THREAD_LOCAL0x1000) | |||
3461 | { | |||
3462 | if (! tls_count) | |||
3463 | first_tls = s; | |||
3464 | tls_count++; | |||
3465 | } | |||
3466 | } | |||
3467 | ||||
3468 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ | |||
3469 | if (tls_count > 0) | |||
3470 | { | |||
3471 | int i; | |||
3472 | ||||
3473 | amt = sizeof (struct elf_segment_map); | |||
3474 | amt += (tls_count - 1) * sizeof (asection *); | |||
3475 | m = bfd_zalloc (abfd, amt); | |||
3476 | if (m == NULL((void*)0)) | |||
3477 | goto error_return; | |||
3478 | m->next = NULL((void*)0); | |||
3479 | m->p_type = PT_TLS7; | |||
3480 | m->count = tls_count; | |||
3481 | /* Mandated PF_R. */ | |||
3482 | m->p_flags = PF_R(1 << 2); | |||
3483 | m->p_flags_valid = 1; | |||
3484 | for (i = 0; i < tls_count; ++i) | |||
3485 | { | |||
3486 | BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL){ if (!(first_tls->flags & 0x1000)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,3486); }; | |||
3487 | m->sections[i] = first_tls; | |||
3488 | first_tls = first_tls->next; | |||
3489 | } | |||
3490 | ||||
3491 | *pm = m; | |||
3492 | pm = &m->next; | |||
3493 | } | |||
3494 | ||||
3495 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME | |||
3496 | segment. */ | |||
3497 | eh_frame_hdr = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->eh_frame_hdr; | |||
3498 | if (eh_frame_hdr != NULL((void*)0) | |||
3499 | && (eh_frame_hdr->output_section->flags & SEC_LOAD0x002) != 0) | |||
3500 | { | |||
3501 | amt = sizeof (struct elf_segment_map); | |||
3502 | m = bfd_zalloc (abfd, amt); | |||
3503 | if (m == NULL((void*)0)) | |||
3504 | goto error_return; | |||
3505 | m->next = NULL((void*)0); | |||
3506 | m->p_type = PT_GNU_EH_FRAME(0x60000000 + 0x474e550); | |||
3507 | m->count = 1; | |||
3508 | m->sections[0] = eh_frame_hdr->output_section; | |||
3509 | ||||
3510 | *pm = m; | |||
3511 | pm = &m->next; | |||
3512 | } | |||
3513 | ||||
3514 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->stack_flags) | |||
3515 | { | |||
3516 | amt = sizeof (struct elf_segment_map); | |||
3517 | m = bfd_zalloc (abfd, amt); | |||
3518 | if (m == NULL((void*)0)) | |||
3519 | goto error_return; | |||
3520 | m->next = NULL((void*)0); | |||
3521 | m->p_type = PT_GNU_STACK(0x60000000 + 0x474e551); | |||
3522 | m->p_flags = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->stack_flags; | |||
3523 | m->p_flags_valid = 1; | |||
3524 | ||||
3525 | *pm = m; | |||
3526 | pm = &m->next; | |||
3527 | } | |||
3528 | ||||
3529 | /* If there is a .openbsd.randomdata section, throw in a PT_OPENBSD_RANDOMIZE | |||
3530 | segment. */ | |||
3531 | randomdata = bfd_get_section_by_name (abfd, ".openbsd.randomdata"); | |||
3532 | if (randomdata != NULL((void*)0) && (randomdata->flags & SEC_LOAD0x002) != 0) | |||
3533 | { | |||
3534 | amt = sizeof (struct elf_segment_map); | |||
3535 | m = bfd_zalloc (abfd, amt); | |||
3536 | if (m == NULL((void*)0)) | |||
3537 | goto error_return; | |||
3538 | m->next = NULL((void*)0); | |||
3539 | m->p_type = PT_OPENBSD_RANDOMIZE0x65a3dbe6; | |||
3540 | m->count = 1; | |||
3541 | m->sections[0] = randomdata->output_section; | |||
3542 | ||||
3543 | *pm = m; | |||
3544 | pm = &m->next; | |||
3545 | } | |||
3546 | ||||
3547 | free (sections); | |||
3548 | sections = NULL((void*)0); | |||
3549 | ||||
3550 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map = mfirst; | |||
3551 | return TRUE1; | |||
3552 | ||||
3553 | error_return: | |||
3554 | if (sections != NULL((void*)0)) | |||
3555 | free (sections); | |||
3556 | return FALSE0; | |||
3557 | } | |||
3558 | ||||
3559 | /* Sort sections by address. */ | |||
3560 | ||||
3561 | static int | |||
3562 | elf_sort_sections (const void *arg1, const void *arg2) | |||
3563 | { | |||
3564 | const asection *sec1 = *(const asection **) arg1; | |||
3565 | const asection *sec2 = *(const asection **) arg2; | |||
3566 | bfd_size_type size1, size2; | |||
3567 | ||||
3568 | /* Sort by LMA first, since this is the address used to | |||
3569 | place the section into a segment. */ | |||
3570 | if (sec1->lma < sec2->lma) | |||
3571 | return -1; | |||
3572 | else if (sec1->lma > sec2->lma) | |||
3573 | return 1; | |||
3574 | ||||
3575 | /* Then sort by VMA. Normally the LMA and the VMA will be | |||
3576 | the same, and this will do nothing. */ | |||
3577 | if (sec1->vma < sec2->vma) | |||
3578 | return -1; | |||
3579 | else if (sec1->vma > sec2->vma) | |||
3580 | return 1; | |||
3581 | ||||
3582 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |||
3583 | ||||
3584 | #define TOEND(x) (((x)->flags & (SEC_LOAD0x002 | SEC_THREAD_LOCAL0x1000)) == 0) | |||
3585 | ||||
3586 | if (TOEND (sec1)) | |||
3587 | { | |||
3588 | if (TOEND (sec2)) | |||
3589 | { | |||
3590 | /* If the indicies are the same, do not return 0 | |||
3591 | here, but continue to try the next comparison. */ | |||
3592 | if (sec1->target_index - sec2->target_index != 0) | |||
3593 | return sec1->target_index - sec2->target_index; | |||
3594 | } | |||
3595 | else | |||
3596 | return 1; | |||
3597 | } | |||
3598 | else if (TOEND (sec2)) | |||
3599 | return -1; | |||
3600 | ||||
3601 | #undef TOEND | |||
3602 | ||||
3603 | /* Sort by size, to put zero sized sections | |||
3604 | before others at the same address. */ | |||
3605 | ||||
3606 | size1 = (sec1->flags & SEC_LOAD0x002) ? sec1->_raw_size : 0; | |||
3607 | size2 = (sec2->flags & SEC_LOAD0x002) ? sec2->_raw_size : 0; | |||
3608 | ||||
3609 | if (size1 < size2) | |||
3610 | return -1; | |||
3611 | if (size1 > size2) | |||
3612 | return 1; | |||
3613 | ||||
3614 | return sec1->target_index - sec2->target_index; | |||
3615 | } | |||
3616 | ||||
3617 | /* Ian Lance Taylor writes: | |||
3618 | ||||
3619 | We shouldn't be using % with a negative signed number. That's just | |||
3620 | not good. We have to make sure either that the number is not | |||
3621 | negative, or that the number has an unsigned type. When the types | |||
3622 | are all the same size they wind up as unsigned. When file_ptr is a | |||
3623 | larger signed type, the arithmetic winds up as signed long long, | |||
3624 | which is wrong. | |||
3625 | ||||
3626 | What we're trying to say here is something like ``increase OFF by | |||
3627 | the least amount that will cause it to be equal to the VMA modulo | |||
3628 | the page size.'' */ | |||
3629 | /* In other words, something like: | |||
3630 | ||||
3631 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |||
3632 | off_offset = off % bed->maxpagesize; | |||
3633 | if (vma_offset < off_offset) | |||
3634 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |||
3635 | else | |||
3636 | adjustment = vma_offset - off_offset; | |||
3637 | ||||
3638 | which can can be collapsed into the expression below. */ | |||
3639 | ||||
3640 | static file_ptr | |||
3641 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |||
3642 | { | |||
3643 | return ((vma - off) % maxpagesize); | |||
3644 | } | |||
3645 | ||||
3646 | /* Assign file positions to the sections based on the mapping from | |||
3647 | sections to segments. This function also sets up some fields in | |||
3648 | the file header, and writes out the program headers. */ | |||
3649 | ||||
3650 | static bfd_boolean | |||
3651 | assign_file_positions_for_segments (bfd *abfd, struct bfd_link_info *link_info) | |||
3652 | { | |||
3653 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
3654 | unsigned int count; | |||
3655 | struct elf_segment_map *m; | |||
3656 | unsigned int alloc; | |||
3657 | Elf_Internal_Phdr *phdrs; | |||
3658 | file_ptr off, voff; | |||
3659 | bfd_vma filehdr_vaddr, filehdr_paddr; | |||
3660 | bfd_vma phdrs_vaddr, phdrs_paddr; | |||
3661 | Elf_Internal_Phdr *p; | |||
3662 | bfd_size_type amt; | |||
3663 | ||||
3664 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map == NULL((void*)0)) | |||
3665 | { | |||
3666 | if (! map_sections_to_segments (abfd)) | |||
3667 | return FALSE0; | |||
3668 | } | |||
3669 | else | |||
3670 | { | |||
3671 | /* The placement algorithm assumes that non allocated sections are | |||
3672 | not in PT_LOAD segments. We ensure this here by removing such | |||
3673 | sections from the segment map. */ | |||
3674 | for (m = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map; | |||
3675 | m != NULL((void*)0); | |||
3676 | m = m->next) | |||
3677 | { | |||
3678 | unsigned int new_count; | |||
3679 | unsigned int i; | |||
3680 | ||||
3681 | if (m->p_type != PT_LOAD1) | |||
3682 | continue; | |||
3683 | ||||
3684 | new_count = 0; | |||
3685 | for (i = 0; i < m->count; i ++) | |||
3686 | { | |||
3687 | if ((m->sections[i]->flags & SEC_ALLOC0x001) != 0) | |||
3688 | { | |||
3689 | if (i != new_count) | |||
3690 | m->sections[new_count] = m->sections[i]; | |||
3691 | ||||
3692 | new_count ++; | |||
3693 | } | |||
3694 | } | |||
3695 | ||||
3696 | if (new_count != m->count) | |||
3697 | m->count = new_count; | |||
3698 | } | |||
3699 | } | |||
3700 | ||||
3701 | if (bed->elf_backend_modify_segment_map) | |||
3702 | { | |||
3703 | if (! (*bed->elf_backend_modify_segment_map) (abfd, link_info)) | |||
3704 | return FALSE0; | |||
3705 | } | |||
3706 | ||||
3707 | count = 0; | |||
3708 | for (m = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map; m != NULL((void*)0); m = m->next) | |||
3709 | ++count; | |||
3710 | ||||
3711 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phoff = bed->s->sizeof_ehdr; | |||
3712 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phentsize = bed->s->sizeof_phdr; | |||
3713 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum = count; | |||
3714 | ||||
3715 | if (count == 0) | |||
3716 | return TRUE1; | |||
3717 | ||||
3718 | /* If we already counted the number of program segments, make sure | |||
3719 | that we allocated enough space. This happens when SIZEOF_HEADERS | |||
3720 | is used in a linker script. */ | |||
3721 | alloc = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size / bed->s->sizeof_phdr; | |||
3722 | if (alloc != 0 && count > alloc) | |||
3723 | { | |||
3724 | ((*_bfd_error_handler) | |||
3725 | (_("%s: Not enough room for program headers (allocated %u, need %u)")("%s: Not enough room for program headers (allocated %u, need %u)" ), | |||
3726 | bfd_get_filename (abfd)((char *) (abfd)->filename), alloc, count)); | |||
3727 | bfd_set_error (bfd_error_bad_value); | |||
3728 | return FALSE0; | |||
3729 | } | |||
3730 | ||||
3731 | if (alloc == 0) | |||
3732 | alloc = count; | |||
3733 | ||||
3734 | amt = alloc * sizeof (Elf_Internal_Phdr); | |||
3735 | phdrs = bfd_alloc (abfd, amt); | |||
3736 | if (phdrs == NULL((void*)0)) | |||
3737 | return FALSE0; | |||
3738 | ||||
3739 | off = bed->s->sizeof_ehdr; | |||
3740 | off += alloc * bed->s->sizeof_phdr; | |||
3741 | ||||
3742 | filehdr_vaddr = 0; | |||
3743 | filehdr_paddr = 0; | |||
3744 | phdrs_vaddr = 0; | |||
3745 | phdrs_paddr = 0; | |||
3746 | ||||
3747 | for (m = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map, p = phdrs; | |||
3748 | m != NULL((void*)0); | |||
3749 | m = m->next, p++) | |||
3750 | { | |||
3751 | unsigned int i; | |||
3752 | asection **secpp; | |||
3753 | ||||
3754 | /* If elf_segment_map is not from map_sections_to_segments, the | |||
3755 | sections may not be correctly ordered. NOTE: sorting should | |||
3756 | not be done to the PT_NOTE section of a corefile, which may | |||
3757 | contain several pseudo-sections artificially created by bfd. | |||
3758 | Sorting these pseudo-sections breaks things badly. */ | |||
3759 | if (m->count > 1 | |||
3760 | && !(elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_type == ET_CORE4 | |||
3761 | && m->p_type == PT_NOTE4)) | |||
3762 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |||
3763 | elf_sort_sections); | |||
3764 | ||||
3765 | p->p_type = m->p_type; | |||
3766 | p->p_flags = m->p_flags; | |||
3767 | ||||
3768 | if (p->p_type == PT_LOAD1 | |||
3769 | && m->count > 0 | |||
3770 | && (m->sections[0]->flags & SEC_ALLOC0x001) != 0) | |||
3771 | { | |||
3772 | if ((abfd->flags & D_PAGED0x100) != 0) | |||
3773 | off += vma_page_aligned_bias (m->sections[0]->vma, off, | |||
3774 | bed->maxpagesize); | |||
3775 | else | |||
3776 | { | |||
3777 | bfd_size_type align; | |||
3778 | ||||
3779 | align = 0; | |||
3780 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) | |||
3781 | { | |||
3782 | bfd_size_type secalign; | |||
3783 | ||||
3784 | secalign = bfd_get_section_alignment (abfd, *secpp)((*secpp)->alignment_power + 0); | |||
3785 | if (secalign > align) | |||
3786 | align = secalign; | |||
3787 | } | |||
3788 | ||||
3789 | off += vma_page_aligned_bias (m->sections[0]->vma, off, | |||
3790 | 1 << align); | |||
3791 | } | |||
3792 | } | |||
3793 | ||||
3794 | if (m->count == 0) | |||
3795 | p->p_vaddr = 0; | |||
3796 | else | |||
3797 | p->p_vaddr = m->sections[0]->vma; | |||
3798 | ||||
3799 | if (m->p_paddr_valid) | |||
3800 | p->p_paddr = m->p_paddr; | |||
3801 | else if (m->count == 0) | |||
3802 | p->p_paddr = 0; | |||
3803 | else | |||
3804 | p->p_paddr = m->sections[0]->lma; | |||
3805 | ||||
3806 | if (p->p_type == PT_LOAD1 | |||
3807 | && (abfd->flags & D_PAGED0x100) != 0) | |||
3808 | p->p_align = bed->maxpagesize; | |||
3809 | else if (m->count == 0) | |||
3810 | p->p_align = 1 << bed->s->log_file_align; | |||
3811 | else | |||
3812 | p->p_align = 0; | |||
3813 | ||||
3814 | p->p_offset = 0; | |||
3815 | p->p_filesz = 0; | |||
3816 | p->p_memsz = 0; | |||
3817 | ||||
3818 | if (m->includes_filehdr) | |||
3819 | { | |||
3820 | if (! m->p_flags_valid) | |||
3821 | p->p_flags |= PF_R(1 << 2); | |||
3822 | p->p_offset = 0; | |||
3823 | p->p_filesz = bed->s->sizeof_ehdr; | |||
3824 | p->p_memsz = bed->s->sizeof_ehdr; | |||
3825 | if (m->count > 0) | |||
3826 | { | |||
3827 | BFD_ASSERT (p->p_type == PT_LOAD){ if (!(p->p_type == 1)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,3827); }; | |||
3828 | ||||
3829 | if (p->p_vaddr < (bfd_vma) off) | |||
3830 | { | |||
3831 | (*_bfd_error_handler) | |||
3832 | (_("%s: Not enough room for program headers, try linking with -N")("%s: Not enough room for program headers, try linking with -N" ), | |||
3833 | bfd_get_filename (abfd)((char *) (abfd)->filename)); | |||
3834 | bfd_set_error (bfd_error_bad_value); | |||
3835 | return FALSE0; | |||
3836 | } | |||
3837 | ||||
3838 | p->p_vaddr -= off; | |||
3839 | if (! m->p_paddr_valid) | |||
3840 | p->p_paddr -= off; | |||
3841 | } | |||
3842 | if (p->p_type == PT_LOAD1) | |||
3843 | { | |||
3844 | filehdr_vaddr = p->p_vaddr; | |||
3845 | filehdr_paddr = p->p_paddr; | |||
3846 | } | |||
3847 | } | |||
3848 | ||||
3849 | if (m->includes_phdrs) | |||
3850 | { | |||
3851 | if (! m->p_flags_valid) | |||
3852 | p->p_flags |= PF_R(1 << 2); | |||
3853 | ||||
3854 | if (m->includes_filehdr) | |||
3855 | { | |||
3856 | if (p->p_type == PT_LOAD1) | |||
3857 | { | |||
3858 | phdrs_vaddr = p->p_vaddr + bed->s->sizeof_ehdr; | |||
3859 | phdrs_paddr = p->p_paddr + bed->s->sizeof_ehdr; | |||
3860 | } | |||
3861 | } | |||
3862 | else | |||
3863 | { | |||
3864 | p->p_offset = bed->s->sizeof_ehdr; | |||
3865 | ||||
3866 | if (m->count > 0) | |||
3867 | { | |||
3868 | BFD_ASSERT (p->p_type == PT_LOAD){ if (!(p->p_type == 1)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,3868); }; | |||
3869 | p->p_vaddr -= off - p->p_offset; | |||
3870 | if (! m->p_paddr_valid) | |||
3871 | p->p_paddr -= off - p->p_offset; | |||
3872 | } | |||
3873 | ||||
3874 | if (p->p_type == PT_LOAD1) | |||
3875 | { | |||
3876 | phdrs_vaddr = p->p_vaddr; | |||
3877 | phdrs_paddr = p->p_paddr; | |||
3878 | } | |||
3879 | else | |||
3880 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |||
3881 | } | |||
3882 | ||||
3883 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |||
3884 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |||
3885 | } | |||
3886 | ||||
3887 | if (p->p_type == PT_LOAD1 | |||
3888 | || (p->p_type == PT_NOTE4 && bfd_get_format (abfd)((abfd)->format) == bfd_core)) | |||
3889 | { | |||
3890 | if (! m->includes_filehdr && ! m->includes_phdrs) | |||
3891 | p->p_offset = off; | |||
3892 | else | |||
3893 | { | |||
3894 | file_ptr adjust; | |||
3895 | ||||
3896 | adjust = off - (p->p_offset + p->p_filesz); | |||
3897 | p->p_filesz += adjust; | |||
3898 | p->p_memsz += adjust; | |||
3899 | } | |||
3900 | } | |||
3901 | ||||
3902 | voff = off; | |||
3903 | ||||
3904 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) | |||
3905 | { | |||
3906 | asection *sec; | |||
3907 | flagword flags; | |||
3908 | bfd_size_type align; | |||
3909 | ||||
3910 | sec = *secpp; | |||
3911 | flags = sec->flags; | |||
3912 | align = 1 << bfd_get_section_alignment (abfd, sec)((sec)->alignment_power + 0); | |||
3913 | ||||
3914 | /* The section may have artificial alignment forced by a | |||
3915 | link script. Notice this case by the gap between the | |||
3916 | cumulative phdr lma and the section's lma. */ | |||
3917 | if (p->p_paddr + p->p_memsz < sec->lma) | |||
3918 | { | |||
3919 | bfd_vma adjust = sec->lma - (p->p_paddr + p->p_memsz); | |||
3920 | ||||
3921 | p->p_memsz += adjust; | |||
3922 | if (p->p_type == PT_LOAD1 | |||
3923 | || (p->p_type == PT_NOTE4 | |||
3924 | && bfd_get_format (abfd)((abfd)->format) == bfd_core)) | |||
3925 | { | |||
3926 | off += adjust; | |||
3927 | voff += adjust; | |||
3928 | } | |||
3929 | if ((flags & SEC_LOAD0x002) != 0 | |||
3930 | || (flags & SEC_THREAD_LOCAL0x1000) != 0) | |||
3931 | p->p_filesz += adjust; | |||
3932 | } | |||
3933 | ||||
3934 | if (p->p_type == PT_LOAD1) | |||
3935 | { | |||
3936 | bfd_signed_vma adjust; | |||
3937 | ||||
3938 | if ((flags & SEC_LOAD0x002) != 0) | |||
3939 | { | |||
3940 | adjust = sec->lma - (p->p_paddr + p->p_memsz); | |||
3941 | if (adjust < 0) | |||
3942 | adjust = 0; | |||
3943 | } | |||
3944 | else if ((flags & SEC_ALLOC0x001) != 0) | |||
3945 | { | |||
3946 | /* The section VMA must equal the file position | |||
3947 | modulo the page size. FIXME: I'm not sure if | |||
3948 | this adjustment is really necessary. We used to | |||
3949 | not have the SEC_LOAD case just above, and then | |||
3950 | this was necessary, but now I'm not sure. */ | |||
3951 | if ((abfd->flags & D_PAGED0x100) != 0) | |||
3952 | adjust = vma_page_aligned_bias (sec->vma, voff, | |||
3953 | bed->maxpagesize); | |||
3954 | else | |||
3955 | adjust = vma_page_aligned_bias (sec->vma, voff, | |||
3956 | align); | |||
3957 | } | |||
3958 | else | |||
3959 | adjust = 0; | |||
3960 | ||||
3961 | if (adjust != 0) | |||
3962 | { | |||
3963 | if (i == 0) | |||
3964 | { | |||
3965 | (* _bfd_error_handler) (_("\("Error: First section in segment (%s) starts at 0x%x whereas the segment starts at 0x%x" ) | |||
3966 | Error: First section in segment (%s) starts at 0x%x whereas the segment starts at 0x%x")("Error: First section in segment (%s) starts at 0x%x whereas the segment starts at 0x%x" ), | |||
3967 | bfd_section_name (abfd, sec)((sec)->name), | |||
3968 | sec->lma, | |||
3969 | p->p_paddr); | |||
3970 | return FALSE0; | |||
3971 | } | |||
3972 | p->p_memsz += adjust; | |||
3973 | off += adjust; | |||
3974 | voff += adjust; | |||
3975 | if ((flags & SEC_LOAD0x002) != 0) | |||
3976 | p->p_filesz += adjust; | |||
3977 | } | |||
3978 | ||||
3979 | sec->filepos = off; | |||
3980 | ||||
3981 | /* We check SEC_HAS_CONTENTS here because if NOLOAD is | |||
3982 | used in a linker script we may have a section with | |||
3983 | SEC_LOAD clear but which is supposed to have | |||
3984 | contents. */ | |||
3985 | if ((flags & SEC_LOAD0x002) != 0 | |||
3986 | || (flags & SEC_HAS_CONTENTS0x200) != 0) | |||
3987 | off += sec->_raw_size; | |||
3988 | ||||
3989 | if ((flags & SEC_ALLOC0x001) != 0 | |||
3990 | && ((flags & SEC_LOAD0x002) != 0 | |||
3991 | || (flags & SEC_THREAD_LOCAL0x1000) == 0)) | |||
3992 | voff += sec->_raw_size; | |||
3993 | } | |||
3994 | ||||
3995 | if (p->p_type == PT_NOTE4 && bfd_get_format (abfd)((abfd)->format) == bfd_core) | |||
3996 | { | |||
3997 | /* The actual "note" segment has i == 0. | |||
3998 | This is the one that actually contains everything. */ | |||
3999 | if (i == 0) | |||
4000 | { | |||
4001 | sec->filepos = off; | |||
4002 | p->p_filesz = sec->_raw_size; | |||
4003 | off += sec->_raw_size; | |||
4004 | voff = off; | |||
4005 | } | |||
4006 | else | |||
4007 | { | |||
4008 | /* Fake sections -- don't need to be written. */ | |||
4009 | sec->filepos = 0; | |||
4010 | sec->_raw_size = 0; | |||
4011 | flags = sec->flags = 0; | |||
4012 | } | |||
4013 | p->p_memsz = 0; | |||
4014 | p->p_align = 1; | |||
4015 | } | |||
4016 | else | |||
4017 | { | |||
4018 | if ((sec->flags & SEC_LOAD0x002) != 0 | |||
4019 | || (sec->flags & SEC_THREAD_LOCAL0x1000) == 0 | |||
4020 | || p->p_type == PT_TLS7) | |||
4021 | p->p_memsz += sec->_raw_size; | |||
4022 | ||||
4023 | if ((flags & SEC_LOAD0x002) != 0) | |||
4024 | p->p_filesz += sec->_raw_size; | |||
4025 | ||||
4026 | if (p->p_type == PT_TLS7 | |||
4027 | && sec->_raw_size == 0 | |||
4028 | && (sec->flags & SEC_HAS_CONTENTS0x200) == 0) | |||
4029 | { | |||
4030 | struct bfd_link_order *o; | |||
4031 | bfd_vma tbss_size = 0; | |||
4032 | ||||
4033 | for (o = sec->link_order_head; o != NULL((void*)0); o = o->next) | |||
4034 | if (tbss_size < o->offset + o->size) | |||
4035 | tbss_size = o->offset + o->size; | |||
4036 | ||||
4037 | p->p_memsz += tbss_size; | |||
4038 | } | |||
4039 | ||||
4040 | if (align > p->p_align | |||
4041 | && (p->p_type != PT_LOAD1 || (abfd->flags & D_PAGED0x100) == 0)) | |||
4042 | p->p_align = align; | |||
4043 | } | |||
4044 | ||||
4045 | if (! m->p_flags_valid) | |||
4046 | { | |||
4047 | p->p_flags |= PF_R(1 << 2); | |||
4048 | if ((flags & SEC_CODE0x020) != 0) | |||
4049 | p->p_flags |= PF_X(1 << 0); | |||
4050 | if ((flags & SEC_READONLY0x010) == 0) | |||
4051 | p->p_flags |= PF_W(1 << 1); | |||
4052 | } | |||
4053 | } | |||
4054 | } | |||
4055 | ||||
4056 | /* Now that we have set the section file positions, we can set up | |||
4057 | the file positions for the non PT_LOAD segments. */ | |||
4058 | for (m = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map, p = phdrs; | |||
4059 | m != NULL((void*)0); | |||
4060 | m = m->next, p++) | |||
4061 | { | |||
4062 | if (p->p_type != PT_LOAD1 && m->count > 0) | |||
4063 | { | |||
4064 | BFD_ASSERT (! m->includes_filehdr && ! m->includes_phdrs){ if (!(! m->includes_filehdr && ! m->includes_phdrs )) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c",4064) ; }; | |||
4065 | p->p_offset = m->sections[0]->filepos; | |||
4066 | } | |||
4067 | if (m->count == 0) | |||
4068 | { | |||
4069 | if (m->includes_filehdr) | |||
4070 | { | |||
4071 | p->p_vaddr = filehdr_vaddr; | |||
4072 | if (! m->p_paddr_valid) | |||
4073 | p->p_paddr = filehdr_paddr; | |||
4074 | } | |||
4075 | else if (m->includes_phdrs) | |||
4076 | { | |||
4077 | p->p_vaddr = phdrs_vaddr; | |||
4078 | if (! m->p_paddr_valid) | |||
4079 | p->p_paddr = phdrs_paddr; | |||
4080 | } | |||
4081 | } | |||
4082 | } | |||
4083 | ||||
4084 | /* Clear out any program headers we allocated but did not use. */ | |||
4085 | for (; count < alloc; count++, p++) | |||
4086 | { | |||
4087 | memset (p, 0, sizeof *p); | |||
4088 | p->p_type = PT_NULL0; | |||
4089 | } | |||
4090 | ||||
4091 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->phdr = phdrs; | |||
4092 | ||||
4093 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos = off; | |||
4094 | ||||
4095 | /* Write out the program headers. */ | |||
4096 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET0) != 0 | |||
4097 | || bed->s->write_out_phdrs (abfd, phdrs, alloc) != 0) | |||
4098 | return FALSE0; | |||
4099 | ||||
4100 | return TRUE1; | |||
4101 | } | |||
4102 | ||||
4103 | /* Get the size of the program header. | |||
4104 | ||||
4105 | If this is called by the linker before any of the section VMA's are set, it | |||
4106 | can't calculate the correct value for a strange memory layout. This only | |||
4107 | happens when SIZEOF_HEADERS is used in a linker script. In this case, | |||
4108 | SORTED_HDRS is NULL and we assume the normal scenario of one text and one | |||
4109 | data segment (exclusive of .interp and .dynamic). | |||
4110 | ||||
4111 | ??? User written scripts must either not use SIZEOF_HEADERS, or assume there | |||
4112 | will be two segments. */ | |||
4113 | ||||
4114 | static bfd_size_type | |||
4115 | get_program_header_size (bfd *abfd) | |||
4116 | { | |||
4117 | size_t segs; | |||
4118 | asection *s; | |||
4119 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
4120 | ||||
4121 | /* We can't return a different result each time we're called. */ | |||
4122 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size != 0) | |||
4123 | return elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size; | |||
4124 | ||||
4125 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map != NULL((void*)0)) | |||
4126 | { | |||
4127 | struct elf_segment_map *m; | |||
4128 | ||||
4129 | segs = 0; | |||
4130 | for (m = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map; m != NULL((void*)0); m = m->next) | |||
4131 | ++segs; | |||
4132 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size = segs * bed->s->sizeof_phdr; | |||
4133 | return elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size; | |||
4134 | } | |||
4135 | ||||
4136 | /* We used to assume that two PT_LOAD segments would be enough, | |||
4137 | code and data, with the change to pad the PLT and GOT, this is no | |||
4138 | longer true. Now there can be several PT_LOAD sections. 7 seems | |||
4139 | to be enough with BSS_PLT and .rodata-X, where we have text, data, | |||
4140 | GOT, dynamic, PLT, bss */ | |||
4141 | segs = 7; | |||
4142 | ||||
4143 | s = bfd_get_section_by_name (abfd, ".interp"); | |||
4144 | s = bfd_get_section_by_name (abfd, ".interp"); | |||
4145 | if ((s != NULL((void*)0) && (s->flags & SEC_LOAD0x002) != 0) || | |||
4146 | (bfd_get_section_by_name (abfd, ".dynamic") && | |||
4147 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->executable)) | |||
4148 | { | |||
4149 | /* We need a PT_PHDR segment. */ | |||
4150 | ++segs; | |||
4151 | } | |||
4152 | ||||
4153 | if (s != NULL((void*)0) && (s->flags & SEC_LOAD0x002) != 0) | |||
4154 | { | |||
4155 | /* If we have a loadable interpreter section, we need a | |||
4156 | PT_INTERP segment. */ | |||
4157 | ++segs; | |||
4158 | } | |||
4159 | ||||
4160 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL((void*)0)) | |||
4161 | { | |||
4162 | /* We need a PT_DYNAMIC segment. */ | |||
4163 | ++segs; | |||
4164 | } | |||
4165 | ||||
4166 | if (bfd_get_section_by_name (abfd, ".openbsd.randomdata") != NULL((void*)0)) | |||
4167 | { | |||
4168 | /* We need a PT_OPENBSD_RANDOMIZE segment. */ | |||
4169 | ++segs; | |||
4170 | } | |||
4171 | ||||
4172 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->eh_frame_hdr) | |||
4173 | { | |||
4174 | /* We need a PT_GNU_EH_FRAME segment. */ | |||
4175 | ++segs; | |||
4176 | } | |||
4177 | ||||
4178 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->stack_flags) | |||
4179 | { | |||
4180 | /* We need a PT_GNU_STACK segment. */ | |||
4181 | ++segs; | |||
4182 | } | |||
4183 | ||||
4184 | for (s = abfd->sections; s != NULL((void*)0); s = s->next) | |||
4185 | { | |||
4186 | if ((s->flags & SEC_LOAD0x002) != 0 | |||
4187 | && strncmp (s->name, ".note", 5) == 0) | |||
4188 | { | |||
4189 | /* We need a PT_NOTE segment. */ | |||
4190 | ++segs; | |||
4191 | } | |||
4192 | } | |||
4193 | ||||
4194 | for (s = abfd->sections; s != NULL((void*)0); s = s->next) | |||
4195 | { | |||
4196 | if (s->flags & SEC_THREAD_LOCAL0x1000) | |||
4197 | { | |||
4198 | /* We need a PT_TLS segment. */ | |||
4199 | ++segs; | |||
4200 | break; | |||
4201 | } | |||
4202 | } | |||
4203 | ||||
4204 | /* Let the backend count up any program headers it might need. */ | |||
4205 | if (bed->elf_backend_additional_program_headers) | |||
4206 | { | |||
4207 | int a; | |||
4208 | ||||
4209 | a = (*bed->elf_backend_additional_program_headers) (abfd); | |||
4210 | if (a == -1) | |||
4211 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c", 4211, __PRETTY_FUNCTION__ ); | |||
4212 | segs += a; | |||
4213 | } | |||
4214 | ||||
4215 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size = segs * bed->s->sizeof_phdr; | |||
4216 | return elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->program_header_size; | |||
4217 | } | |||
4218 | ||||
4219 | /* Work out the file positions of all the sections. This is called by | |||
4220 | _bfd_elf_compute_section_file_positions. All the section sizes and | |||
4221 | VMAs must be known before this is called. | |||
4222 | ||||
4223 | We do not consider reloc sections at this point, unless they form | |||
4224 | part of the loadable image. Reloc sections are assigned file | |||
4225 | positions in assign_file_positions_for_relocs, which is called by | |||
4226 | write_object_contents and final_link. | |||
4227 | ||||
4228 | We also don't set the positions of the .symtab and .strtab here. */ | |||
4229 | ||||
4230 | static bfd_boolean | |||
4231 | assign_file_positions_except_relocs (bfd *abfd, | |||
4232 | struct bfd_link_info *link_info) | |||
4233 | { | |||
4234 | struct elf_obj_tdata * const tdata = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data); | |||
4235 | Elf_Internal_Ehdr * const i_ehdrp = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header); | |||
4236 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr); | |||
4237 | unsigned int num_sec = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
4238 | file_ptr off; | |||
4239 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
4240 | ||||
4241 | if ((abfd->flags & (EXEC_P0x02 | DYNAMIC0x40)) == 0 | |||
4242 | && bfd_get_format (abfd)((abfd)->format) != bfd_core) | |||
4243 | { | |||
4244 | Elf_Internal_Shdr **hdrpp; | |||
4245 | unsigned int i; | |||
4246 | ||||
4247 | /* Start after the ELF header. */ | |||
4248 | off = i_ehdrp->e_ehsize; | |||
4249 | ||||
4250 | /* We are not creating an executable, which means that we are | |||
4251 | not creating a program header, and that the actual order of | |||
4252 | the sections in the file is unimportant. */ | |||
4253 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) | |||
4254 | { | |||
4255 | Elf_Internal_Shdr *hdr; | |||
4256 | ||||
4257 | hdr = *hdrpp; | |||
4258 | if (hdr->sh_type == SHT_REL9 | |||
4259 | || hdr->sh_type == SHT_RELA4 | |||
4260 | || i == tdata->symtab_section | |||
4261 | || i == tdata->symtab_shndx_section | |||
4262 | || i == tdata->strtab_section) | |||
4263 | { | |||
4264 | hdr->sh_offset = -1; | |||
4265 | } | |||
4266 | else | |||
4267 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE1); | |||
4268 | ||||
4269 | if (i == SHN_LORESERVE0xFF00 - 1) | |||
4270 | { | |||
4271 | i += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
4272 | hdrpp += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
4273 | } | |||
4274 | } | |||
4275 | } | |||
4276 | else | |||
4277 | { | |||
4278 | unsigned int i; | |||
4279 | Elf_Internal_Shdr **hdrpp; | |||
4280 | ||||
4281 | /* Assign file positions for the loaded sections based on the | |||
4282 | assignment of sections to segments. */ | |||
4283 | if (! assign_file_positions_for_segments (abfd, link_info)) | |||
4284 | return FALSE0; | |||
4285 | ||||
4286 | /* Assign file positions for the other sections. */ | |||
4287 | ||||
4288 | off = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos; | |||
4289 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) | |||
4290 | { | |||
4291 | Elf_Internal_Shdr *hdr; | |||
4292 | ||||
4293 | hdr = *hdrpp; | |||
4294 | if (hdr->bfd_section != NULL((void*)0) | |||
4295 | && hdr->bfd_section->filepos != 0) | |||
4296 | hdr->sh_offset = hdr->bfd_section->filepos; | |||
4297 | else if ((hdr->sh_flags & SHF_ALLOC(1 << 1)) != 0) | |||
4298 | { | |||
4299 | ((*_bfd_error_handler) | |||
4300 | (_("%s: warning: allocated section `%s' not in segment")("%s: warning: allocated section `%s' not in segment"), | |||
4301 | bfd_get_filename (abfd)((char *) (abfd)->filename), | |||
4302 | (hdr->bfd_section == NULL((void*)0) | |||
4303 | ? "*unknown*" | |||
4304 | : hdr->bfd_section->name))); | |||
4305 | if ((abfd->flags & D_PAGED0x100) != 0) | |||
4306 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |||
4307 | bed->maxpagesize); | |||
4308 | else | |||
4309 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |||
4310 | hdr->sh_addralign); | |||
4311 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |||
4312 | FALSE0); | |||
4313 | } | |||
4314 | else if (hdr == i_shdrpp[tdata->symtab_section] | |||
4315 | || hdr == i_shdrpp[tdata->symtab_shndx_section] | |||
4316 | || hdr == i_shdrpp[tdata->strtab_section]) | |||
4317 | hdr->sh_offset = -1; | |||
4318 | else | |||
4319 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE1); | |||
4320 | ||||
4321 | if (i == SHN_LORESERVE0xFF00 - 1) | |||
4322 | { | |||
4323 | i += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
4324 | hdrpp += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
4325 | } | |||
4326 | } | |||
4327 | } | |||
4328 | ||||
4329 | /* Place the section headers. */ | |||
4330 | off = align_file_position (off, 1 << bed->s->log_file_align); | |||
4331 | i_ehdrp->e_shoff = off; | |||
4332 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |||
4333 | ||||
4334 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos = off; | |||
4335 | ||||
4336 | return TRUE1; | |||
4337 | } | |||
4338 | ||||
4339 | static bfd_boolean | |||
4340 | prep_headers (bfd *abfd) | |||
4341 | { | |||
4342 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |||
4343 | Elf_Internal_Phdr *i_phdrp = 0; /* Program header table, internal form */ | |||
4344 | Elf_Internal_Shdr **i_shdrp; /* Section header table, internal form */ | |||
4345 | struct elf_strtab_hash *shstrtab; | |||
4346 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
4347 | ||||
4348 | i_ehdrp = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header); | |||
4349 | i_shdrp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr); | |||
4350 | ||||
4351 | shstrtab = _bfd_elf_strtab_init (); | |||
4352 | if (shstrtab == NULL((void*)0)) | |||
4353 | return FALSE0; | |||
4354 | ||||
4355 | elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr) = shstrtab; | |||
4356 | ||||
4357 | i_ehdrp->e_ident[EI_MAG00] = ELFMAG00x7F; | |||
4358 | i_ehdrp->e_ident[EI_MAG11] = ELFMAG1'E'; | |||
4359 | i_ehdrp->e_ident[EI_MAG22] = ELFMAG2'L'; | |||
4360 | i_ehdrp->e_ident[EI_MAG33] = ELFMAG3'F'; | |||
4361 | ||||
4362 | i_ehdrp->e_ident[EI_CLASS4] = bed->s->elfclass; | |||
4363 | i_ehdrp->e_ident[EI_DATA5] = | |||
4364 | bfd_big_endian (abfd)((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) ? ELFDATA2MSB2 : ELFDATA2LSB1; | |||
4365 | i_ehdrp->e_ident[EI_VERSION6] = bed->s->ev_current; | |||
4366 | ||||
4367 | if ((abfd->flags & DYNAMIC0x40) != 0) | |||
4368 | i_ehdrp->e_type = ET_DYN3; | |||
4369 | else if ((abfd->flags & EXEC_P0x02) != 0) | |||
4370 | i_ehdrp->e_type = ET_EXEC2; | |||
4371 | else if (bfd_get_format (abfd)((abfd)->format) == bfd_core) | |||
4372 | i_ehdrp->e_type = ET_CORE4; | |||
4373 | else | |||
4374 | i_ehdrp->e_type = ET_REL1; | |||
4375 | ||||
4376 | switch (bfd_get_arch (abfd)) | |||
4377 | { | |||
4378 | case bfd_arch_unknown: | |||
4379 | i_ehdrp->e_machine = EM_NONE0; | |||
4380 | break; | |||
4381 | ||||
4382 | /* There used to be a long list of cases here, each one setting | |||
4383 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |||
4384 | in the corresponding bfd definition. To avoid duplication, | |||
4385 | the switch was removed. Machines that need special handling | |||
4386 | can generally do it in elf_backend_final_write_processing(), | |||
4387 | unless they need the information earlier than the final write. | |||
4388 | Such need can generally be supplied by replacing the tests for | |||
4389 | e_machine with the conditions used to determine it. */ | |||
4390 | default: | |||
4391 | i_ehdrp->e_machine = bed->elf_machine_code; | |||
4392 | } | |||
4393 | ||||
4394 | i_ehdrp->e_version = bed->s->ev_current; | |||
4395 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |||
4396 | ||||
4397 | /* No program header, for now. */ | |||
4398 | i_ehdrp->e_phoff = 0; | |||
4399 | i_ehdrp->e_phentsize = 0; | |||
4400 | i_ehdrp->e_phnum = 0; | |||
4401 | ||||
4402 | /* Each bfd section is section header entry. */ | |||
4403 | i_ehdrp->e_entry = bfd_get_start_address (abfd)((abfd)->start_address); | |||
4404 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |||
4405 | ||||
4406 | /* If we're building an executable, we'll need a program header table. */ | |||
4407 | if (abfd->flags & EXEC_P0x02) | |||
4408 | { | |||
4409 | /* It all happens later. */ | |||
4410 | #if 0 | |||
4411 | i_ehdrp->e_phentsize = sizeof (Elf_External_Phdr); | |||
4412 | ||||
4413 | /* elf_build_phdrs() returns a (NULL-terminated) array of | |||
4414 | Elf_Internal_Phdrs. */ | |||
4415 | i_phdrp = elf_build_phdrs (abfd, i_ehdrp, i_shdrp, &i_ehdrp->e_phnum); | |||
4416 | i_ehdrp->e_phoff = outbase; | |||
4417 | outbase += i_ehdrp->e_phentsize * i_ehdrp->e_phnum; | |||
4418 | #endif | |||
4419 | } | |||
4420 | else | |||
4421 | { | |||
4422 | i_ehdrp->e_phentsize = 0; | |||
4423 | i_phdrp = 0; | |||
4424 | i_ehdrp->e_phoff = 0; | |||
4425 | } | |||
4426 | ||||
4427 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr.sh_name = | |||
4428 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE0); | |||
4429 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->strtab_hdr.sh_name = | |||
4430 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE0); | |||
4431 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_hdr.sh_name = | |||
4432 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE0); | |||
4433 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr.sh_name == (unsigned int) -1 | |||
4434 | || elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr.sh_name == (unsigned int) -1 | |||
4435 | || elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_hdr.sh_name == (unsigned int) -1) | |||
4436 | return FALSE0; | |||
4437 | ||||
4438 | return TRUE1; | |||
4439 | } | |||
4440 | ||||
4441 | /* Assign file positions for all the reloc sections which are not part | |||
4442 | of the loadable file image. */ | |||
4443 | ||||
4444 | void | |||
4445 | _bfd_elf_assign_file_positions_for_relocs (bfd *abfd) | |||
4446 | { | |||
4447 | file_ptr off; | |||
4448 | unsigned int i, num_sec; | |||
4449 | Elf_Internal_Shdr **shdrpp; | |||
4450 | ||||
4451 | off = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos; | |||
4452 | ||||
4453 | num_sec = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
4454 | for (i = 1, shdrpp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr) + 1; i < num_sec; i++, shdrpp++) | |||
4455 | { | |||
4456 | Elf_Internal_Shdr *shdrp; | |||
4457 | ||||
4458 | shdrp = *shdrpp; | |||
4459 | if ((shdrp->sh_type == SHT_REL9 || shdrp->sh_type == SHT_RELA4) | |||
4460 | && shdrp->sh_offset == -1) | |||
4461 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE1); | |||
4462 | } | |||
4463 | ||||
4464 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->next_file_pos = off; | |||
4465 | } | |||
4466 | ||||
4467 | bfd_boolean | |||
4468 | _bfd_elf_write_object_contents (bfd *abfd) | |||
4469 | { | |||
4470 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
4471 | Elf_Internal_Ehdr *i_ehdrp; | |||
4472 | Elf_Internal_Shdr **i_shdrp; | |||
4473 | bfd_boolean failed; | |||
4474 | unsigned int count, num_sec; | |||
4475 | ||||
4476 | if (! abfd->output_has_begun | |||
4477 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL((void*)0))) | |||
4478 | return FALSE0; | |||
4479 | ||||
4480 | i_shdrp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr); | |||
4481 | i_ehdrp = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header); | |||
4482 | ||||
4483 | failed = FALSE0; | |||
4484 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); | |||
4485 | if (failed) | |||
4486 | return FALSE0; | |||
4487 | ||||
4488 | _bfd_elf_assign_file_positions_for_relocs (abfd); | |||
4489 | ||||
4490 | /* After writing the headers, we need to write the sections too... */ | |||
4491 | num_sec = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
4492 | for (count = 1; count < num_sec; count++) | |||
4493 | { | |||
4494 | if (bed->elf_backend_section_processing) | |||
4495 | (*bed->elf_backend_section_processing) (abfd, i_shdrp[count]); | |||
4496 | if (i_shdrp[count]->contents) | |||
4497 | { | |||
4498 | bfd_size_type amt = i_shdrp[count]->sh_size; | |||
4499 | ||||
4500 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET0) != 0 | |||
4501 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) | |||
4502 | return FALSE0; | |||
4503 | } | |||
4504 | if (count == SHN_LORESERVE0xFF00 - 1) | |||
4505 | count += SHN_HIRESERVE0xFFFF + 1 - SHN_LORESERVE0xFF00; | |||
4506 | } | |||
4507 | ||||
4508 | /* Write out the section header names. */ | |||
4509 | if (bfd_seek (abfd, elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_hdr.sh_offset, SEEK_SET0) != 0 | |||
4510 | || ! _bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr))) | |||
4511 | return FALSE0; | |||
4512 | ||||
4513 | if (bed->elf_backend_final_write_processing) | |||
4514 | (*bed->elf_backend_final_write_processing) (abfd, | |||
4515 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->linker); | |||
4516 | ||||
4517 | return bed->s->write_shdrs_and_ehdr (abfd); | |||
4518 | } | |||
4519 | ||||
4520 | bfd_boolean | |||
4521 | _bfd_elf_write_corefile_contents (bfd *abfd) | |||
4522 | { | |||
4523 | /* Hopefully this can be done just like an object file. */ | |||
4524 | return _bfd_elf_write_object_contents (abfd); | |||
| ||||
4525 | } | |||
4526 | ||||
4527 | /* Given a section, search the header to find them. */ | |||
4528 | ||||
4529 | int | |||
4530 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) | |||
4531 | { | |||
4532 | const struct elf_backend_data *bed; | |||
4533 | int index; | |||
4534 | ||||
4535 | if (elf_section_data (asect)((struct bfd_elf_section_data*)asect->used_by_bfd) != NULL((void*)0) | |||
4536 | && elf_section_data (asect)((struct bfd_elf_section_data*)asect->used_by_bfd)->this_idx != 0) | |||
4537 | return elf_section_data (asect)((struct bfd_elf_section_data*)asect->used_by_bfd)->this_idx; | |||
4538 | ||||
4539 | if (bfd_is_abs_section (asect)((asect) == ((asection *) &bfd_abs_section))) | |||
4540 | index = SHN_ABS0xFFF1; | |||
4541 | else if (bfd_is_com_section (asect)(((asect)->flags & 0x8000) != 0)) | |||
4542 | index = SHN_COMMON0xFFF2; | |||
4543 | else if (bfd_is_und_section (asect)((asect) == ((asection *) &bfd_und_section))) | |||
4544 | index = SHN_UNDEF0; | |||
4545 | else | |||
4546 | { | |||
4547 | Elf_Internal_Shdr **i_shdrp = elf_elfsections (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_sect_ptr); | |||
4548 | int maxindex = elf_numsections (abfd)(((abfd) -> tdata.elf_obj_data) -> num_elf_sections); | |||
4549 | ||||
4550 | for (index = 1; index < maxindex; index++) | |||
4551 | { | |||
4552 | Elf_Internal_Shdr *hdr = i_shdrp[index]; | |||
4553 | ||||
4554 | if (hdr != NULL((void*)0) && hdr->bfd_section == asect) | |||
4555 | return index; | |||
4556 | } | |||
4557 | index = -1; | |||
4558 | } | |||
4559 | ||||
4560 | bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
4561 | if (bed->elf_backend_section_from_bfd_section) | |||
4562 | { | |||
4563 | int retval = index; | |||
4564 | ||||
4565 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) | |||
4566 | return retval; | |||
4567 | } | |||
4568 | ||||
4569 | if (index == -1) | |||
4570 | bfd_set_error (bfd_error_nonrepresentable_section); | |||
4571 | ||||
4572 | return index; | |||
4573 | } | |||
4574 | ||||
4575 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |||
4576 | on error. */ | |||
4577 | ||||
4578 | int | |||
4579 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) | |||
4580 | { | |||
4581 | asymbol *asym_ptr = *asym_ptr_ptr; | |||
4582 | int idx; | |||
4583 | flagword flags = asym_ptr->flags; | |||
4584 | ||||
4585 | /* When gas creates relocations against local labels, it creates its | |||
4586 | own symbol for the section, but does put the symbol into the | |||
4587 | symbol chain, so udata is 0. When the linker is generating | |||
4588 | relocatable output, this section symbol may be for one of the | |||
4589 | input sections rather than the output section. */ | |||
4590 | if (asym_ptr->udata.i == 0 | |||
4591 | && (flags & BSF_SECTION_SYM0x100) | |||
4592 | && asym_ptr->section) | |||
4593 | { | |||
4594 | int indx; | |||
4595 | ||||
4596 | if (asym_ptr->section->output_section != NULL((void*)0)) | |||
4597 | indx = asym_ptr->section->output_section->index; | |||
4598 | else | |||
4599 | indx = asym_ptr->section->index; | |||
4600 | if (indx < elf_num_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> num_section_syms) | |||
4601 | && elf_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> section_syms)[indx] != NULL((void*)0)) | |||
4602 | asym_ptr->udata.i = elf_section_syms (abfd)(((abfd) -> tdata.elf_obj_data) -> section_syms)[indx]->udata.i; | |||
4603 | } | |||
4604 | ||||
4605 | idx = asym_ptr->udata.i; | |||
4606 | ||||
4607 | if (idx == 0) | |||
4608 | { | |||
4609 | /* This case can occur when using --strip-symbol on a symbol | |||
4610 | which is used in a relocation entry. */ | |||
4611 | (*_bfd_error_handler) | |||
4612 | (_("%s: symbol `%s' required but not present")("%s: symbol `%s' required but not present"), | |||
4613 | bfd_archive_filename (abfd), bfd_asymbol_name (asym_ptr)((asym_ptr)->name)); | |||
4614 | bfd_set_error (bfd_error_no_symbols); | |||
4615 | return -1; | |||
4616 | } | |||
4617 | ||||
4618 | #if DEBUG & 4 | |||
4619 | { | |||
4620 | fprintf (stderr(&__sF[2]), | |||
4621 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx%s\n", | |||
4622 | (long) asym_ptr, asym_ptr->name, idx, flags, | |||
4623 | elf_symbol_flags (flags)); | |||
4624 | fflush (stderr(&__sF[2])); | |||
4625 | } | |||
4626 | #endif | |||
4627 | ||||
4628 | return idx; | |||
4629 | } | |||
4630 | ||||
4631 | /* Copy private BFD data. This copies any program header information. */ | |||
4632 | ||||
4633 | static bfd_boolean | |||
4634 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |||
4635 | { | |||
4636 | Elf_Internal_Ehdr *iehdr; | |||
4637 | struct elf_segment_map *map; | |||
4638 | struct elf_segment_map *map_first; | |||
4639 | struct elf_segment_map **pointer_to_map; | |||
4640 | Elf_Internal_Phdr *segment; | |||
4641 | asection *section; | |||
4642 | unsigned int i; | |||
4643 | unsigned int num_segments; | |||
4644 | bfd_boolean phdr_included = FALSE0; | |||
4645 | bfd_vma maxpagesize; | |||
4646 | struct elf_segment_map *phdr_adjust_seg = NULL((void*)0); | |||
4647 | unsigned int phdr_adjust_num = 0; | |||
4648 | const struct elf_backend_data *bed; | |||
4649 | ||||
4650 | if (bfd_get_flavour (ibfd)((ibfd)->xvec->flavour) != bfd_target_elf_flavour | |||
4651 | || bfd_get_flavour (obfd)((obfd)->xvec->flavour) != bfd_target_elf_flavour) | |||
4652 | return TRUE1; | |||
4653 | ||||
4654 | if (elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->phdr == NULL((void*)0)) | |||
4655 | return TRUE1; | |||
4656 | ||||
4657 | bed = get_elf_backend_data (ibfd)((const struct elf_backend_data *) (ibfd)->xvec->backend_data ); | |||
4658 | iehdr = elf_elfheader (ibfd)(((ibfd) -> tdata.elf_obj_data) -> elf_header); | |||
4659 | ||||
4660 | map_first = NULL((void*)0); | |||
4661 | pointer_to_map = &map_first; | |||
4662 | ||||
4663 | num_segments = elf_elfheader (ibfd)(((ibfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum; | |||
4664 | maxpagesize = get_elf_backend_data (obfd)((const struct elf_backend_data *) (obfd)->xvec->backend_data )->maxpagesize; | |||
4665 | ||||
4666 | /* Returns the end address of the segment + 1. */ | |||
4667 | #define SEGMENT_END(segment, start) \ | |||
4668 | (start + (segment->p_memsz > segment->p_filesz \ | |||
4669 | ? segment->p_memsz : segment->p_filesz)) | |||
4670 | ||||
4671 | #define SECTION_SIZE(section, segment) \ | |||
4672 | (((section->flags & (SEC_HAS_CONTENTS0x200 | SEC_THREAD_LOCAL0x1000)) \ | |||
4673 | != SEC_THREAD_LOCAL0x1000 || segment->p_type == PT_TLS7) \ | |||
4674 | ? section->_raw_size : 0) | |||
4675 | ||||
4676 | /* Returns TRUE if the given section is contained within | |||
4677 | the given segment. VMA addresses are compared. */ | |||
4678 | #define IS_CONTAINED_BY_VMA(section, segment) \ | |||
4679 | (section->vma >= segment->p_vaddr \ | |||
4680 | && (section->vma + SECTION_SIZE (section, segment) \ | |||
4681 | <= (SEGMENT_END (segment, segment->p_vaddr)))) | |||
4682 | ||||
4683 | /* Returns TRUE if the given section is contained within | |||
4684 | the given segment. LMA addresses are compared. */ | |||
4685 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ | |||
4686 | (section->lma >= base \ | |||
4687 | && (section->lma + SECTION_SIZE (section, segment) \ | |||
4688 | <= SEGMENT_END (segment, base))) | |||
4689 | ||||
4690 | /* Special case: corefile "NOTE" section containing regs, prpsinfo etc. */ | |||
4691 | #define IS_COREFILE_NOTE(p, s) \ | |||
4692 | (p->p_type == PT_NOTE4 \ | |||
4693 | && bfd_get_format (ibfd)((ibfd)->format) == bfd_core \ | |||
4694 | && s->vma == 0 && s->lma == 0 \ | |||
4695 | && (bfd_vma) s->filepos >= p->p_offset \ | |||
4696 | && ((bfd_vma) s->filepos + s->_raw_size \ | |||
4697 | <= p->p_offset + p->p_filesz)) | |||
4698 | ||||
4699 | /* The complicated case when p_vaddr is 0 is to handle the Solaris | |||
4700 | linker, which generates a PT_INTERP section with p_vaddr and | |||
4701 | p_memsz set to 0. */ | |||
4702 | #define IS_SOLARIS_PT_INTERP(p, s) \ | |||
4703 | (p->p_vaddr == 0 \ | |||
4704 | && p->p_paddr == 0 \ | |||
4705 | && p->p_memsz == 0 \ | |||
4706 | && p->p_filesz > 0 \ | |||
4707 | && (s->flags & SEC_HAS_CONTENTS0x200) != 0 \ | |||
4708 | && s->_raw_size > 0 \ | |||
4709 | && (bfd_vma) s->filepos >= p->p_offset \ | |||
4710 | && ((bfd_vma) s->filepos + s->_raw_size \ | |||
4711 | <= p->p_offset + p->p_filesz)) | |||
4712 | ||||
4713 | /* Decide if the given section should be included in the given segment. | |||
4714 | A section will be included if: | |||
4715 | 1. It is within the address space of the segment -- we use the LMA | |||
4716 | if that is set for the segment and the VMA otherwise, | |||
4717 | 2. It is an allocated segment, | |||
4718 | 3. There is an output section associated with it, | |||
4719 | 4. The section has not already been allocated to a previous segment. | |||
4720 | 5. PT_GNU_STACK segments do not include any sections. | |||
4721 | 6. PT_TLS segment includes only SHF_TLS sections. | |||
4722 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. */ | |||
4723 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |||
4724 | ((((segment->p_paddr \ | |||
4725 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |||
4726 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |||
4727 | && (section->flags & SEC_ALLOC0x001) != 0) \ | |||
4728 | || IS_COREFILE_NOTE (segment, section)) \ | |||
4729 | && section->output_section != NULL((void*)0) \ | |||
4730 | && segment->p_type != PT_GNU_STACK(0x60000000 + 0x474e551) \ | |||
4731 | && (segment->p_type != PT_TLS7 \ | |||
4732 | || (section->flags & SEC_THREAD_LOCAL0x1000)) \ | |||
4733 | && (segment->p_type == PT_LOAD1 \ | |||
4734 | || segment->p_type == PT_TLS7 \ | |||
4735 | || (section->flags & SEC_THREAD_LOCAL0x1000) == 0) \ | |||
4736 | && ! section->segment_mark) | |||
4737 | ||||
4738 | /* Returns TRUE iff seg1 starts after the end of seg2. */ | |||
4739 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ | |||
4740 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |||
4741 | ||||
4742 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |||
4743 | their VMA address ranges and their LMA address ranges overlap. | |||
4744 | It is possible to have overlapping VMA ranges without overlapping LMA | |||
4745 | ranges. RedBoot images for example can have both .data and .bss mapped | |||
4746 | to the same VMA range, but with the .data section mapped to a different | |||
4747 | LMA. */ | |||
4748 | #define SEGMENT_OVERLAPS(seg1, seg2) \ | |||
4749 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ | |||
4750 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ | |||
4751 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ | |||
4752 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) | |||
4753 | ||||
4754 | /* Initialise the segment mark field. */ | |||
4755 | for (section = ibfd->sections; section != NULL((void*)0); section = section->next) | |||
4756 | section->segment_mark = FALSE0; | |||
4757 | ||||
4758 | /* Scan through the segments specified in the program header | |||
4759 | of the input BFD. For this first scan we look for overlaps | |||
4760 | in the loadable segments. These can be created by weird | |||
4761 | parameters to objcopy. Also, fix some solaris weirdness. */ | |||
4762 | for (i = 0, segment = elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->phdr; | |||
4763 | i < num_segments; | |||
4764 | i++, segment++) | |||
4765 | { | |||
4766 | unsigned int j; | |||
4767 | Elf_Internal_Phdr *segment2; | |||
4768 | ||||
4769 | if (segment->p_type == PT_INTERP3) | |||
4770 | for (section = ibfd->sections; section; section = section->next) | |||
4771 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |||
4772 | { | |||
4773 | /* Mininal change so that the normal section to segment | |||
4774 | assignment code will work. */ | |||
4775 | segment->p_vaddr = section->vma; | |||
4776 | break; | |||
4777 | } | |||
4778 | ||||
4779 | if (segment->p_type != PT_LOAD1) | |||
4780 | continue; | |||
4781 | ||||
4782 | /* Determine if this segment overlaps any previous segments. */ | |||
4783 | for (j = 0, segment2 = elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->phdr; j < i; j++, segment2 ++) | |||
4784 | { | |||
4785 | bfd_signed_vma extra_length; | |||
4786 | ||||
4787 | if (segment2->p_type != PT_LOAD1 | |||
4788 | || ! SEGMENT_OVERLAPS (segment, segment2)) | |||
4789 | continue; | |||
4790 | ||||
4791 | /* Merge the two segments together. */ | |||
4792 | if (segment2->p_vaddr < segment->p_vaddr) | |||
4793 | { | |||
4794 | /* Extend SEGMENT2 to include SEGMENT and then delete | |||
4795 | SEGMENT. */ | |||
4796 | extra_length = | |||
4797 | SEGMENT_END (segment, segment->p_vaddr) | |||
4798 | - SEGMENT_END (segment2, segment2->p_vaddr); | |||
4799 | ||||
4800 | if (extra_length > 0) | |||
4801 | { | |||
4802 | segment2->p_memsz += extra_length; | |||
4803 | segment2->p_filesz += extra_length; | |||
4804 | } | |||
4805 | ||||
4806 | segment->p_type = PT_NULL0; | |||
4807 | ||||
4808 | /* Since we have deleted P we must restart the outer loop. */ | |||
4809 | i = 0; | |||
4810 | segment = elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->phdr; | |||
4811 | break; | |||
4812 | } | |||
4813 | else | |||
4814 | { | |||
4815 | /* Extend SEGMENT to include SEGMENT2 and then delete | |||
4816 | SEGMENT2. */ | |||
4817 | extra_length = | |||
4818 | SEGMENT_END (segment2, segment2->p_vaddr) | |||
4819 | - SEGMENT_END (segment, segment->p_vaddr); | |||
4820 | ||||
4821 | if (extra_length > 0) | |||
4822 | { | |||
4823 | segment->p_memsz += extra_length; | |||
4824 | segment->p_filesz += extra_length; | |||
4825 | } | |||
4826 | ||||
4827 | segment2->p_type = PT_NULL0; | |||
4828 | } | |||
4829 | } | |||
4830 | } | |||
4831 | ||||
4832 | /* The second scan attempts to assign sections to segments. */ | |||
4833 | for (i = 0, segment = elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->phdr; | |||
4834 | i < num_segments; | |||
4835 | i ++, segment ++) | |||
4836 | { | |||
4837 | unsigned int section_count; | |||
4838 | asection ** sections; | |||
4839 | asection * output_section; | |||
4840 | unsigned int isec; | |||
4841 | bfd_vma matching_lma; | |||
4842 | bfd_vma suggested_lma; | |||
4843 | unsigned int j; | |||
4844 | bfd_size_type amt; | |||
4845 | ||||
4846 | if (segment->p_type == PT_NULL0) | |||
4847 | continue; | |||
4848 | ||||
4849 | /* Compute how many sections might be placed into this segment. */ | |||
4850 | for (section = ibfd->sections, section_count = 0; | |||
4851 | section != NULL((void*)0); | |||
4852 | section = section->next) | |||
4853 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) | |||
4854 | ++section_count; | |||
4855 | ||||
4856 | /* Allocate a segment map big enough to contain | |||
4857 | all of the sections we have selected. */ | |||
4858 | amt = sizeof (struct elf_segment_map); | |||
4859 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |||
4860 | map = bfd_alloc (obfd, amt); | |||
4861 | if (map == NULL((void*)0)) | |||
4862 | return FALSE0; | |||
4863 | ||||
4864 | /* Initialise the fields of the segment map. Default to | |||
4865 | using the physical address of the segment in the input BFD. */ | |||
4866 | map->next = NULL((void*)0); | |||
4867 | map->p_type = segment->p_type; | |||
4868 | map->p_flags = segment->p_flags; | |||
4869 | map->p_flags_valid = 1; | |||
4870 | map->p_paddr = segment->p_paddr; | |||
4871 | map->p_paddr_valid = 1; | |||
4872 | ||||
4873 | /* Determine if this segment contains the ELF file header | |||
4874 | and if it contains the program headers themselves. */ | |||
4875 | map->includes_filehdr = (segment->p_offset == 0 | |||
4876 | && segment->p_filesz >= iehdr->e_ehsize); | |||
4877 | ||||
4878 | map->includes_phdrs = 0; | |||
4879 | ||||
4880 | if (! phdr_included || segment->p_type != PT_LOAD1) | |||
4881 | { | |||
4882 | map->includes_phdrs = | |||
4883 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |||
4884 | && (segment->p_offset + segment->p_filesz | |||
4885 | >= ((bfd_vma) iehdr->e_phoff | |||
4886 | + iehdr->e_phnum * iehdr->e_phentsize))); | |||
4887 | ||||
4888 | if (segment->p_type == PT_LOAD1 && map->includes_phdrs) | |||
4889 | phdr_included = TRUE1; | |||
4890 | } | |||
4891 | ||||
4892 | if (section_count == 0) | |||
4893 | { | |||
4894 | /* Special segments, such as the PT_PHDR segment, may contain | |||
4895 | no sections, but ordinary, loadable segments should contain | |||
4896 | something. They are allowed by the ELF spec however, so only | |||
4897 | a warning is produced. */ | |||
4898 | if (segment->p_type == PT_LOAD1) | |||
4899 | (*_bfd_error_handler) | |||
4900 | (_("%s: warning: Empty loadable segment detected, is this intentional ?\n")("%s: warning: Empty loadable segment detected, is this intentional ?\n" ), | |||
4901 | bfd_archive_filename (ibfd)); | |||
4902 | ||||
4903 | map->count = 0; | |||
4904 | *pointer_to_map = map; | |||
4905 | pointer_to_map = &map->next; | |||
4906 | ||||
4907 | continue; | |||
4908 | } | |||
4909 | ||||
4910 | /* Now scan the sections in the input BFD again and attempt | |||
4911 | to add their corresponding output sections to the segment map. | |||
4912 | The problem here is how to handle an output section which has | |||
4913 | been moved (ie had its LMA changed). There are four possibilities: | |||
4914 | ||||
4915 | 1. None of the sections have been moved. | |||
4916 | In this case we can continue to use the segment LMA from the | |||
4917 | input BFD. | |||
4918 | ||||
4919 | 2. All of the sections have been moved by the same amount. | |||
4920 | In this case we can change the segment's LMA to match the LMA | |||
4921 | of the first section. | |||
4922 | ||||
4923 | 3. Some of the sections have been moved, others have not. | |||
4924 | In this case those sections which have not been moved can be | |||
4925 | placed in the current segment which will have to have its size, | |||
4926 | and possibly its LMA changed, and a new segment or segments will | |||
4927 | have to be created to contain the other sections. | |||
4928 | ||||
4929 | 4. The sections have been moved, but not by the same amount. | |||
4930 | In this case we can change the segment's LMA to match the LMA | |||
4931 | of the first section and we will have to create a new segment | |||
4932 | or segments to contain the other sections. | |||
4933 | ||||
4934 | In order to save time, we allocate an array to hold the section | |||
4935 | pointers that we are interested in. As these sections get assigned | |||
4936 | to a segment, they are removed from this array. */ | |||
4937 | ||||
4938 | /* Gcc 2.96 miscompiles this code on mips. Don't do casting here | |||
4939 | to work around this long long bug. */ | |||
4940 | amt = section_count * sizeof (asection *); | |||
4941 | sections = bfd_malloc (amt); | |||
4942 | if (sections == NULL((void*)0)) | |||
4943 | return FALSE0; | |||
4944 | ||||
4945 | /* Step One: Scan for segment vs section LMA conflicts. | |||
4946 | Also add the sections to the section array allocated above. | |||
4947 | Also add the sections to the current segment. In the common | |||
4948 | case, where the sections have not been moved, this means that | |||
4949 | we have completely filled the segment, and there is nothing | |||
4950 | more to do. */ | |||
4951 | isec = 0; | |||
4952 | matching_lma = 0; | |||
4953 | suggested_lma = 0; | |||
4954 | ||||
4955 | for (j = 0, section = ibfd->sections; | |||
4956 | section != NULL((void*)0); | |||
4957 | section = section->next) | |||
4958 | { | |||
4959 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) | |||
4960 | { | |||
4961 | output_section = section->output_section; | |||
4962 | ||||
4963 | sections[j ++] = section; | |||
4964 | ||||
4965 | /* The Solaris native linker always sets p_paddr to 0. | |||
4966 | We try to catch that case here, and set it to the | |||
4967 | correct value. Note - some backends require that | |||
4968 | p_paddr be left as zero. */ | |||
4969 | if (segment->p_paddr == 0 | |||
4970 | && segment->p_vaddr != 0 | |||
4971 | && (! bed->want_p_paddr_set_to_zero) | |||
4972 | && isec == 0 | |||
4973 | && output_section->lma != 0 | |||
4974 | && (output_section->vma == (segment->p_vaddr | |||
4975 | + (map->includes_filehdr | |||
4976 | ? iehdr->e_ehsize | |||
4977 | : 0) | |||
4978 | + (map->includes_phdrs | |||
4979 | ? (iehdr->e_phnum | |||
4980 | * iehdr->e_phentsize) | |||
4981 | : 0)))) | |||
4982 | map->p_paddr = segment->p_vaddr; | |||
4983 | ||||
4984 | /* Match up the physical address of the segment with the | |||
4985 | LMA address of the output section. */ | |||
4986 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) | |||
4987 | || IS_COREFILE_NOTE (segment, section) | |||
4988 | || (bed->want_p_paddr_set_to_zero && | |||
4989 | IS_CONTAINED_BY_VMA (output_section, segment)) | |||
4990 | ) | |||
4991 | { | |||
4992 | if (matching_lma == 0) | |||
4993 | matching_lma = output_section->lma; | |||
4994 | ||||
4995 | /* We assume that if the section fits within the segment | |||
4996 | then it does not overlap any other section within that | |||
4997 | segment. */ | |||
4998 | map->sections[isec ++] = output_section; | |||
4999 | } | |||
5000 | else if (suggested_lma == 0) | |||
5001 | suggested_lma = output_section->lma; | |||
5002 | } | |||
5003 | } | |||
5004 | ||||
5005 | BFD_ASSERT (j == section_count){ if (!(j == section_count)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,5005); }; | |||
5006 | ||||
5007 | /* Step Two: Adjust the physical address of the current segment, | |||
5008 | if necessary. */ | |||
5009 | if (isec == section_count) | |||
5010 | { | |||
5011 | /* All of the sections fitted within the segment as currently | |||
5012 | specified. This is the default case. Add the segment to | |||
5013 | the list of built segments and carry on to process the next | |||
5014 | program header in the input BFD. */ | |||
5015 | map->count = section_count; | |||
5016 | *pointer_to_map = map; | |||
5017 | pointer_to_map = &map->next; | |||
5018 | ||||
5019 | free (sections); | |||
5020 | continue; | |||
5021 | } | |||
5022 | else | |||
5023 | { | |||
5024 | if (matching_lma != 0) | |||
5025 | { | |||
5026 | /* At least one section fits inside the current segment. | |||
5027 | Keep it, but modify its physical address to match the | |||
5028 | LMA of the first section that fitted. */ | |||
5029 | map->p_paddr = matching_lma; | |||
5030 | } | |||
5031 | else | |||
5032 | { | |||
5033 | /* None of the sections fitted inside the current segment. | |||
5034 | Change the current segment's physical address to match | |||
5035 | the LMA of the first section. */ | |||
5036 | map->p_paddr = suggested_lma; | |||
5037 | } | |||
5038 | ||||
5039 | /* Offset the segment physical address from the lma | |||
5040 | to allow for space taken up by elf headers. */ | |||
5041 | if (map->includes_filehdr) | |||
5042 | map->p_paddr -= iehdr->e_ehsize; | |||
5043 | ||||
5044 | if (map->includes_phdrs) | |||
5045 | { | |||
5046 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; | |||
5047 | ||||
5048 | /* iehdr->e_phnum is just an estimate of the number | |||
5049 | of program headers that we will need. Make a note | |||
5050 | here of the number we used and the segment we chose | |||
5051 | to hold these headers, so that we can adjust the | |||
5052 | offset when we know the correct value. */ | |||
5053 | phdr_adjust_num = iehdr->e_phnum; | |||
5054 | phdr_adjust_seg = map; | |||
5055 | } | |||
5056 | } | |||
5057 | ||||
5058 | /* Step Three: Loop over the sections again, this time assigning | |||
5059 | those that fit to the current segment and removing them from the | |||
5060 | sections array; but making sure not to leave large gaps. Once all | |||
5061 | possible sections have been assigned to the current segment it is | |||
5062 | added to the list of built segments and if sections still remain | |||
5063 | to be assigned, a new segment is constructed before repeating | |||
5064 | the loop. */ | |||
5065 | isec = 0; | |||
5066 | do | |||
5067 | { | |||
5068 | map->count = 0; | |||
5069 | suggested_lma = 0; | |||
5070 | ||||
5071 | /* Fill the current segment with sections that fit. */ | |||
5072 | for (j = 0; j < section_count; j++) | |||
5073 | { | |||
5074 | section = sections[j]; | |||
5075 | ||||
5076 | if (section == NULL((void*)0)) | |||
5077 | continue; | |||
5078 | ||||
5079 | output_section = section->output_section; | |||
5080 | ||||
5081 | BFD_ASSERT (output_section != NULL){ if (!(output_section != ((void*)0))) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,5081); }; | |||
5082 | ||||
5083 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) | |||
5084 | || IS_COREFILE_NOTE (segment, section)) | |||
5085 | { | |||
5086 | if (map->count == 0) | |||
5087 | { | |||
5088 | /* If the first section in a segment does not start at | |||
5089 | the beginning of the segment, then something is | |||
5090 | wrong. */ | |||
5091 | if (output_section->lma != | |||
5092 | (map->p_paddr | |||
5093 | + (map->includes_filehdr ? iehdr->e_ehsize : 0) | |||
5094 | + (map->includes_phdrs | |||
5095 | ? iehdr->e_phnum * iehdr->e_phentsize | |||
5096 | : 0))) | |||
5097 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c", 5097, __PRETTY_FUNCTION__ ); | |||
5098 | } | |||
5099 | else | |||
5100 | { | |||
5101 | asection * prev_sec; | |||
5102 | ||||
5103 | prev_sec = map->sections[map->count - 1]; | |||
5104 | ||||
5105 | /* If the gap between the end of the previous section | |||
5106 | and the start of this section is more than | |||
5107 | maxpagesize then we need to start a new segment. */ | |||
5108 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->_raw_size,((((bfd_vma) (prev_sec->lma + prev_sec->_raw_size) + (maxpagesize ) - 1) >= (bfd_vma) (prev_sec->lma + prev_sec->_raw_size )) ? (((bfd_vma) (prev_sec->lma + prev_sec->_raw_size) + ((maxpagesize) - 1)) & ~ (bfd_vma) ((maxpagesize)-1)) : ~ (bfd_vma) 0) | |||
5109 | maxpagesize)((((bfd_vma) (prev_sec->lma + prev_sec->_raw_size) + (maxpagesize ) - 1) >= (bfd_vma) (prev_sec->lma + prev_sec->_raw_size )) ? (((bfd_vma) (prev_sec->lma + prev_sec->_raw_size) + ((maxpagesize) - 1)) & ~ (bfd_vma) ((maxpagesize)-1)) : ~ (bfd_vma) 0) | |||
5110 | < BFD_ALIGN (output_section->lma, maxpagesize)((((bfd_vma) (output_section->lma) + (maxpagesize) - 1) >= (bfd_vma) (output_section->lma)) ? (((bfd_vma) (output_section ->lma) + ((maxpagesize) - 1)) & ~ (bfd_vma) ((maxpagesize )-1)) : ~ (bfd_vma) 0)) | |||
5111 | || ((prev_sec->lma + prev_sec->_raw_size) | |||
5112 | > output_section->lma)) | |||
5113 | { | |||
5114 | if (suggested_lma == 0) | |||
5115 | suggested_lma = output_section->lma; | |||
5116 | ||||
5117 | continue; | |||
5118 | } | |||
5119 | } | |||
5120 | ||||
5121 | map->sections[map->count++] = output_section; | |||
5122 | ++isec; | |||
5123 | sections[j] = NULL((void*)0); | |||
5124 | section->segment_mark = TRUE1; | |||
5125 | } | |||
5126 | else if (suggested_lma == 0) | |||
5127 | suggested_lma = output_section->lma; | |||
5128 | } | |||
5129 | ||||
5130 | BFD_ASSERT (map->count > 0){ if (!(map->count > 0)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,5130); }; | |||
5131 | ||||
5132 | /* Add the current segment to the list of built segments. */ | |||
5133 | *pointer_to_map = map; | |||
5134 | pointer_to_map = &map->next; | |||
5135 | ||||
5136 | if (isec < section_count) | |||
5137 | { | |||
5138 | /* We still have not allocated all of the sections to | |||
5139 | segments. Create a new segment here, initialise it | |||
5140 | and carry on looping. */ | |||
5141 | amt = sizeof (struct elf_segment_map); | |||
5142 | amt += ((bfd_size_type) section_count - 1) * sizeof (asection *); | |||
5143 | map = bfd_alloc (obfd, amt); | |||
5144 | if (map == NULL((void*)0)) | |||
5145 | { | |||
5146 | free (sections); | |||
5147 | return FALSE0; | |||
5148 | } | |||
5149 | ||||
5150 | /* Initialise the fields of the segment map. Set the physical | |||
5151 | physical address to the LMA of the first section that has | |||
5152 | not yet been assigned. */ | |||
5153 | map->next = NULL((void*)0); | |||
5154 | map->p_type = segment->p_type; | |||
5155 | map->p_flags = segment->p_flags; | |||
5156 | map->p_flags_valid = 1; | |||
5157 | map->p_paddr = suggested_lma; | |||
5158 | map->p_paddr_valid = 1; | |||
5159 | map->includes_filehdr = 0; | |||
5160 | map->includes_phdrs = 0; | |||
5161 | } | |||
5162 | } | |||
5163 | while (isec < section_count); | |||
5164 | ||||
5165 | free (sections); | |||
5166 | } | |||
5167 | ||||
5168 | /* The Solaris linker creates program headers in which all the | |||
5169 | p_paddr fields are zero. When we try to objcopy or strip such a | |||
5170 | file, we get confused. Check for this case, and if we find it | |||
5171 | reset the p_paddr_valid fields. */ | |||
5172 | for (map = map_first; map != NULL((void*)0); map = map->next) | |||
5173 | if (map->p_paddr != 0) | |||
5174 | break; | |||
5175 | if (map == NULL((void*)0)) | |||
5176 | for (map = map_first; map != NULL((void*)0); map = map->next) | |||
5177 | map->p_paddr_valid = 0; | |||
5178 | ||||
5179 | elf_tdata (obfd)((obfd) -> tdata.elf_obj_data)->segment_map = map_first; | |||
5180 | ||||
5181 | /* If we had to estimate the number of program headers that were | |||
5182 | going to be needed, then check our estimate now and adjust | |||
5183 | the offset if necessary. */ | |||
5184 | if (phdr_adjust_seg != NULL((void*)0)) | |||
5185 | { | |||
5186 | unsigned int count; | |||
5187 | ||||
5188 | for (count = 0, map = map_first; map != NULL((void*)0); map = map->next) | |||
5189 | count++; | |||
5190 | ||||
5191 | if (count > phdr_adjust_num) | |||
5192 | phdr_adjust_seg->p_paddr | |||
5193 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |||
5194 | } | |||
5195 | ||||
5196 | #if 0 | |||
5197 | /* Final Step: Sort the segments into ascending order of physical | |||
5198 | address. */ | |||
5199 | if (map_first != NULL((void*)0)) | |||
5200 | { | |||
5201 | struct elf_segment_map *prev; | |||
5202 | ||||
5203 | prev = map_first; | |||
5204 | for (map = map_first->next; map != NULL((void*)0); prev = map, map = map->next) | |||
5205 | { | |||
5206 | /* Yes I know - its a bubble sort.... */ | |||
5207 | if (map->next != NULL((void*)0) && (map->next->p_paddr < map->p_paddr)) | |||
5208 | { | |||
5209 | /* Swap map and map->next. */ | |||
5210 | prev->next = map->next; | |||
5211 | map->next = map->next->next; | |||
5212 | prev->next->next = map; | |||
5213 | ||||
5214 | /* Restart loop. */ | |||
5215 | map = map_first; | |||
5216 | } | |||
5217 | } | |||
5218 | } | |||
5219 | #endif | |||
5220 | ||||
5221 | #undef SEGMENT_END | |||
5222 | #undef SECTION_SIZE | |||
5223 | #undef IS_CONTAINED_BY_VMA | |||
5224 | #undef IS_CONTAINED_BY_LMA | |||
5225 | #undef IS_COREFILE_NOTE | |||
5226 | #undef IS_SOLARIS_PT_INTERP | |||
5227 | #undef INCLUDE_SECTION_IN_SEGMENT | |||
5228 | #undef SEGMENT_AFTER_SEGMENT | |||
5229 | #undef SEGMENT_OVERLAPS | |||
5230 | return TRUE1; | |||
5231 | } | |||
5232 | ||||
5233 | /* Copy private section information. This copies over the entsize | |||
5234 | field, and sometimes the info field. */ | |||
5235 | ||||
5236 | bfd_boolean | |||
5237 | _bfd_elf_copy_private_section_data (bfd *ibfd, | |||
5238 | asection *isec, | |||
5239 | bfd *obfd, | |||
5240 | asection *osec) | |||
5241 | { | |||
5242 | Elf_Internal_Shdr *ihdr, *ohdr; | |||
5243 | ||||
5244 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |||
5245 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |||
5246 | return TRUE1; | |||
5247 | ||||
5248 | if (elf_tdata (obfd)((obfd) -> tdata.elf_obj_data)->segment_map == NULL((void*)0) && elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->phdr != NULL((void*)0)) | |||
5249 | { | |||
5250 | asection *s; | |||
5251 | ||||
5252 | /* Only set up the segments if there are no more SEC_ALLOC | |||
5253 | sections. FIXME: This won't do the right thing if objcopy is | |||
5254 | used to remove the last SEC_ALLOC section, since objcopy | |||
5255 | won't call this routine in that case. */ | |||
5256 | for (s = isec->next; s != NULL((void*)0); s = s->next) | |||
5257 | if ((s->flags & SEC_ALLOC0x001) != 0) | |||
5258 | break; | |||
5259 | if (s == NULL((void*)0)) | |||
5260 | { | |||
5261 | if (! copy_private_bfd_data (ibfd, obfd)) | |||
5262 | return FALSE0; | |||
5263 | } | |||
5264 | } | |||
5265 | ||||
5266 | ihdr = &elf_section_data (isec)((struct bfd_elf_section_data*)isec->used_by_bfd)->this_hdr; | |||
5267 | ohdr = &elf_section_data (osec)((struct bfd_elf_section_data*)osec->used_by_bfd)->this_hdr; | |||
5268 | ||||
5269 | ohdr->sh_entsize = ihdr->sh_entsize; | |||
5270 | ||||
5271 | if (ihdr->sh_type == SHT_SYMTAB2 | |||
5272 | || ihdr->sh_type == SHT_DYNSYM11 | |||
5273 | || ihdr->sh_type == SHT_GNU_verneed0x6ffffffe | |||
5274 | || ihdr->sh_type == SHT_GNU_verdef0x6ffffffd) | |||
5275 | ohdr->sh_info = ihdr->sh_info; | |||
5276 | ||||
5277 | /* Set things up for objcopy. The output SHT_GROUP section will | |||
5278 | have its elf_next_in_group pointing back to the input group | |||
5279 | members. */ | |||
5280 | elf_next_in_group (osec)(((struct bfd_elf_section_data*)osec->used_by_bfd)->next_in_group ) = elf_next_in_group (isec)(((struct bfd_elf_section_data*)isec->used_by_bfd)->next_in_group ); | |||
5281 | elf_group_name (osec)(((struct bfd_elf_section_data*)osec->used_by_bfd)->group .name) = elf_group_name (isec)(((struct bfd_elf_section_data*)isec->used_by_bfd)->group .name); | |||
5282 | ||||
5283 | osec->use_rela_p = isec->use_rela_p; | |||
5284 | ||||
5285 | return TRUE1; | |||
5286 | } | |||
5287 | ||||
5288 | /* Copy private symbol information. If this symbol is in a section | |||
5289 | which we did not map into a BFD section, try to map the section | |||
5290 | index correctly. We use special macro definitions for the mapped | |||
5291 | section indices; these definitions are interpreted by the | |||
5292 | swap_out_syms function. */ | |||
5293 | ||||
5294 | #define MAP_ONESYMTAB(0xFF3F + 1) (SHN_HIOS0xFF3F + 1) | |||
5295 | #define MAP_DYNSYMTAB(0xFF3F + 2) (SHN_HIOS0xFF3F + 2) | |||
5296 | #define MAP_STRTAB(0xFF3F + 3) (SHN_HIOS0xFF3F + 3) | |||
5297 | #define MAP_SHSTRTAB(0xFF3F + 4) (SHN_HIOS0xFF3F + 4) | |||
5298 | #define MAP_SYM_SHNDX(0xFF3F + 5) (SHN_HIOS0xFF3F + 5) | |||
5299 | ||||
5300 | bfd_boolean | |||
5301 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, | |||
5302 | asymbol *isymarg, | |||
5303 | bfd *obfd, | |||
5304 | asymbol *osymarg) | |||
5305 | { | |||
5306 | elf_symbol_type *isym, *osym; | |||
5307 | ||||
5308 | if (bfd_get_flavour (ibfd)((ibfd)->xvec->flavour) != bfd_target_elf_flavour | |||
5309 | || bfd_get_flavour (obfd)((obfd)->xvec->flavour) != bfd_target_elf_flavour) | |||
5310 | return TRUE1; | |||
5311 | ||||
5312 | isym = elf_symbol_from (ibfd, isymarg)(((isymarg)->the_bfd->xvec->flavour == bfd_target_elf_flavour && (isymarg)->the_bfd->tdata.elf_obj_data != 0 ) ? (elf_symbol_type *) (isymarg) : 0); | |||
5313 | osym = elf_symbol_from (obfd, osymarg)(((osymarg)->the_bfd->xvec->flavour == bfd_target_elf_flavour && (osymarg)->the_bfd->tdata.elf_obj_data != 0 ) ? (elf_symbol_type *) (osymarg) : 0); | |||
5314 | ||||
5315 | if (isym != NULL((void*)0) | |||
5316 | && osym != NULL((void*)0) | |||
5317 | && bfd_is_abs_section (isym->symbol.section)((isym->symbol.section) == ((asection *) &bfd_abs_section ))) | |||
5318 | { | |||
5319 | unsigned int shndx; | |||
5320 | ||||
5321 | shndx = isym->internal_elf_sym.st_shndx; | |||
5322 | if (shndx == elf_onesymtab (ibfd)(((ibfd) -> tdata.elf_obj_data) -> symtab_section)) | |||
5323 | shndx = MAP_ONESYMTAB(0xFF3F + 1); | |||
5324 | else if (shndx == elf_dynsymtab (ibfd)(((ibfd) -> tdata.elf_obj_data) -> dynsymtab_section)) | |||
5325 | shndx = MAP_DYNSYMTAB(0xFF3F + 2); | |||
5326 | else if (shndx == elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->strtab_section) | |||
5327 | shndx = MAP_STRTAB(0xFF3F + 3); | |||
5328 | else if (shndx == elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->shstrtab_section) | |||
5329 | shndx = MAP_SHSTRTAB(0xFF3F + 4); | |||
5330 | else if (shndx == elf_tdata (ibfd)((ibfd) -> tdata.elf_obj_data)->symtab_shndx_section) | |||
5331 | shndx = MAP_SYM_SHNDX(0xFF3F + 5); | |||
5332 | osym->internal_elf_sym.st_shndx = shndx; | |||
5333 | } | |||
5334 | ||||
5335 | return TRUE1; | |||
5336 | } | |||
5337 | ||||
5338 | /* Swap out the symbols. */ | |||
5339 | ||||
5340 | static bfd_boolean | |||
5341 | swap_out_syms (bfd *abfd, | |||
5342 | struct bfd_strtab_hash **sttp, | |||
5343 | int relocatable_p) | |||
5344 | { | |||
5345 | const struct elf_backend_data *bed; | |||
5346 | int symcount; | |||
5347 | asymbol **syms; | |||
5348 | struct bfd_strtab_hash *stt; | |||
5349 | Elf_Internal_Shdr *symtab_hdr; | |||
5350 | Elf_Internal_Shdr *symtab_shndx_hdr; | |||
5351 | Elf_Internal_Shdr *symstrtab_hdr; | |||
5352 | char *outbound_syms; | |||
5353 | char *outbound_shndx; | |||
5354 | int idx; | |||
5355 | bfd_size_type amt; | |||
5356 | bfd_boolean name_local_sections; | |||
5357 | ||||
5358 | if (!elf_map_symbols (abfd)) | |||
5359 | return FALSE0; | |||
5360 | ||||
5361 | /* Dump out the symtabs. */ | |||
5362 | stt = _bfd_elf_stringtab_init (); | |||
5363 | if (stt == NULL((void*)0)) | |||
5364 | return FALSE0; | |||
5365 | ||||
5366 | bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
5367 | symcount = bfd_get_symcount (abfd)((abfd)->symcount); | |||
5368 | symtab_hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr; | |||
5369 | symtab_hdr->sh_type = SHT_SYMTAB2; | |||
5370 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |||
5371 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |||
5372 | symtab_hdr->sh_info = elf_num_locals (abfd)(((abfd) -> tdata.elf_obj_data) -> num_locals) + 1; | |||
5373 | symtab_hdr->sh_addralign = 1 << bed->s->log_file_align; | |||
5374 | ||||
5375 | symstrtab_hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->strtab_hdr; | |||
5376 | symstrtab_hdr->sh_type = SHT_STRTAB3; | |||
5377 | ||||
5378 | amt = (bfd_size_type) (1 + symcount) * bed->s->sizeof_sym; | |||
5379 | outbound_syms = bfd_alloc (abfd, amt); | |||
5380 | if (outbound_syms == NULL((void*)0)) | |||
5381 | { | |||
5382 | _bfd_stringtab_free (stt); | |||
5383 | return FALSE0; | |||
5384 | } | |||
5385 | symtab_hdr->contents = outbound_syms; | |||
5386 | ||||
5387 | outbound_shndx = NULL((void*)0); | |||
5388 | symtab_shndx_hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_shndx_hdr; | |||
5389 | if (symtab_shndx_hdr->sh_name != 0) | |||
5390 | { | |||
5391 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |||
5392 | outbound_shndx = bfd_zalloc (abfd, amt); | |||
5393 | if (outbound_shndx == NULL((void*)0)) | |||
5394 | { | |||
5395 | _bfd_stringtab_free (stt); | |||
5396 | return FALSE0; | |||
5397 | } | |||
5398 | ||||
5399 | symtab_shndx_hdr->contents = outbound_shndx; | |||
5400 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX18; | |||
5401 | symtab_shndx_hdr->sh_size = amt; | |||
5402 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |||
5403 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |||
5404 | } | |||
5405 | ||||
5406 | /* Now generate the data (for "contents"). */ | |||
5407 | { | |||
5408 | /* Fill in zeroth symbol and swap it out. */ | |||
5409 | Elf_Internal_Sym sym; | |||
5410 | sym.st_name = 0; | |||
5411 | sym.st_value = 0; | |||
5412 | sym.st_size = 0; | |||
5413 | sym.st_info = 0; | |||
5414 | sym.st_other = 0; | |||
5415 | sym.st_shndx = SHN_UNDEF0; | |||
5416 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); | |||
5417 | outbound_syms += bed->s->sizeof_sym; | |||
5418 | if (outbound_shndx != NULL((void*)0)) | |||
5419 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |||
5420 | } | |||
5421 | ||||
5422 | name_local_sections | |||
5423 | = (bed->elf_backend_name_local_section_symbols | |||
5424 | && bed->elf_backend_name_local_section_symbols (abfd)); | |||
5425 | ||||
5426 | syms = bfd_get_outsymbols (abfd)((abfd)->outsymbols); | |||
5427 | for (idx = 0; idx < symcount; idx++) | |||
5428 | { | |||
5429 | Elf_Internal_Sym sym; | |||
5430 | bfd_vma value = syms[idx]->value; | |||
5431 | elf_symbol_type *type_ptr; | |||
5432 | flagword flags = syms[idx]->flags; | |||
5433 | int type; | |||
5434 | ||||
5435 | if (!name_local_sections | |||
5436 | && (flags & (BSF_SECTION_SYM0x100 | BSF_GLOBAL0x02)) == BSF_SECTION_SYM0x100) | |||
5437 | { | |||
5438 | /* Local section symbols have no name. */ | |||
5439 | sym.st_name = 0; | |||
5440 | } | |||
5441 | else | |||
5442 | { | |||
5443 | sym.st_name = (unsigned long) _bfd_stringtab_add (stt, | |||
5444 | syms[idx]->name, | |||
5445 | TRUE1, FALSE0); | |||
5446 | if (sym.st_name == (unsigned long) -1) | |||
5447 | { | |||
5448 | _bfd_stringtab_free (stt); | |||
5449 | return FALSE0; | |||
5450 | } | |||
5451 | } | |||
5452 | ||||
5453 | type_ptr = elf_symbol_from (abfd, syms[idx])(((syms[idx])->the_bfd->xvec->flavour == bfd_target_elf_flavour && (syms[idx])->the_bfd->tdata.elf_obj_data != 0) ? (elf_symbol_type *) (syms[idx]) : 0); | |||
5454 | ||||
5455 | if ((flags & BSF_SECTION_SYM0x100) == 0 | |||
5456 | && bfd_is_com_section (syms[idx]->section)(((syms[idx]->section)->flags & 0x8000) != 0)) | |||
5457 | { | |||
5458 | /* ELF common symbols put the alignment into the `value' field, | |||
5459 | and the size into the `size' field. This is backwards from | |||
5460 | how BFD handles it, so reverse it here. */ | |||
5461 | sym.st_size = value; | |||
5462 | if (type_ptr == NULL((void*)0) | |||
5463 | || type_ptr->internal_elf_sym.st_value == 0) | |||
5464 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |||
5465 | else | |||
5466 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |||
5467 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |||
5468 | (abfd, syms[idx]->section); | |||
5469 | } | |||
5470 | else | |||
5471 | { | |||
5472 | asection *sec = syms[idx]->section; | |||
5473 | int shndx; | |||
5474 | ||||
5475 | if (sec->output_section) | |||
5476 | { | |||
5477 | value += sec->output_offset; | |||
5478 | sec = sec->output_section; | |||
5479 | } | |||
5480 | ||||
5481 | /* Don't add in the section vma for relocatable output. */ | |||
5482 | if (! relocatable_p) | |||
5483 | value += sec->vma; | |||
5484 | sym.st_value = value; | |||
5485 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |||
5486 | ||||
5487 | if (bfd_is_abs_section (sec)((sec) == ((asection *) &bfd_abs_section)) | |||
5488 | && type_ptr != NULL((void*)0) | |||
5489 | && type_ptr->internal_elf_sym.st_shndx != 0) | |||
5490 | { | |||
5491 | /* This symbol is in a real ELF section which we did | |||
5492 | not create as a BFD section. Undo the mapping done | |||
5493 | by copy_private_symbol_data. */ | |||
5494 | shndx = type_ptr->internal_elf_sym.st_shndx; | |||
5495 | switch (shndx) | |||
5496 | { | |||
5497 | case MAP_ONESYMTAB(0xFF3F + 1): | |||
5498 | shndx = elf_onesymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> symtab_section); | |||
5499 | break; | |||
5500 | case MAP_DYNSYMTAB(0xFF3F + 2): | |||
5501 | shndx = elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section); | |||
5502 | break; | |||
5503 | case MAP_STRTAB(0xFF3F + 3): | |||
5504 | shndx = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->strtab_section; | |||
5505 | break; | |||
5506 | case MAP_SHSTRTAB(0xFF3F + 4): | |||
5507 | shndx = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->shstrtab_section; | |||
5508 | break; | |||
5509 | case MAP_SYM_SHNDX(0xFF3F + 5): | |||
5510 | shndx = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_shndx_section; | |||
5511 | break; | |||
5512 | default: | |||
5513 | break; | |||
5514 | } | |||
5515 | } | |||
5516 | else | |||
5517 | { | |||
5518 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |||
5519 | ||||
5520 | if (shndx == -1) | |||
5521 | { | |||
5522 | asection *sec2; | |||
5523 | ||||
5524 | /* Writing this would be a hell of a lot easier if | |||
5525 | we had some decent documentation on bfd, and | |||
5526 | knew what to expect of the library, and what to | |||
5527 | demand of applications. For example, it | |||
5528 | appears that `objcopy' might not set the | |||
5529 | section of a symbol to be a section that is | |||
5530 | actually in the output file. */ | |||
5531 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |||
5532 | if (sec2 == NULL((void*)0)) | |||
5533 | { | |||
5534 | _bfd_error_handler (_("\("Unable to find equivalent output section for symbol '%s' from section '%s'" ) | |||
5535 | Unable to find equivalent output section for symbol '%s' from section '%s'")("Unable to find equivalent output section for symbol '%s' from section '%s'" ), | |||
5536 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |||
5537 | sec->name); | |||
5538 | bfd_set_error (bfd_error_invalid_operation); | |||
5539 | _bfd_stringtab_free (stt); | |||
5540 | return FALSE0; | |||
5541 | } | |||
5542 | ||||
5543 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |||
5544 | BFD_ASSERT (shndx != -1){ if (!(shndx != -1)) bfd_assert("/usr/src/gnu/usr.bin/binutils/bfd/elf.c" ,5544); }; | |||
5545 | } | |||
5546 | } | |||
5547 | ||||
5548 | sym.st_shndx = shndx; | |||
5549 | } | |||
5550 | ||||
5551 | if ((flags & BSF_THREAD_LOCAL0x40000) != 0) | |||
5552 | type = STT_TLS6; | |||
5553 | else if ((flags & BSF_FUNCTION0x10) != 0) | |||
5554 | type = STT_FUNC2; | |||
5555 | else if ((flags & BSF_OBJECT0x10000) != 0) | |||
5556 | type = STT_OBJECT1; | |||
5557 | else | |||
5558 | type = STT_NOTYPE0; | |||
5559 | ||||
5560 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL0x1000) | |||
5561 | type = STT_TLS6; | |||
5562 | ||||
5563 | /* Processor-specific types. */ | |||
5564 | if (type_ptr != NULL((void*)0) | |||
5565 | && bed->elf_backend_get_symbol_type) | |||
5566 | type = ((*bed->elf_backend_get_symbol_type) | |||
5567 | (&type_ptr->internal_elf_sym, type)); | |||
5568 | ||||
5569 | if (flags & BSF_SECTION_SYM0x100) | |||
5570 | { | |||
5571 | if (flags & BSF_GLOBAL0x02) | |||
5572 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION)(((1) << 4) + ((3) & 0xF)); | |||
5573 | else | |||
5574 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION)(((0) << 4) + ((3) & 0xF)); | |||
5575 | } | |||
5576 | else if (bfd_is_com_section (syms[idx]->section)(((syms[idx]->section)->flags & 0x8000) != 0)) | |||
5577 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type)(((1) << 4) + ((type) & 0xF)); | |||
5578 | else if (bfd_is_und_section (syms[idx]->section)((syms[idx]->section) == ((asection *) &bfd_und_section ))) | |||
5579 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK)(((((flags & 0x80) ? 2 : 1)) << 4) + ((type) & 0xF )) | |||
5580 | ? STB_WEAK(((((flags & 0x80) ? 2 : 1)) << 4) + ((type) & 0xF )) | |||
5581 | : STB_GLOBAL),(((((flags & 0x80) ? 2 : 1)) << 4) + ((type) & 0xF )) | |||
5582 | type)(((((flags & 0x80) ? 2 : 1)) << 4) + ((type) & 0xF )); | |||
5583 | else if (flags & BSF_FILE0x4000) | |||
5584 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE)(((0) << 4) + ((4) & 0xF)); | |||
5585 | else | |||
5586 | { | |||
5587 | int bind = STB_LOCAL0; | |||
5588 | ||||
5589 | if (flags & BSF_LOCAL0x01) | |||
5590 | bind = STB_LOCAL0; | |||
5591 | else if (flags & BSF_WEAK0x80) | |||
5592 | bind = STB_WEAK2; | |||
5593 | else if (flags & BSF_GLOBAL0x02) | |||
5594 | bind = STB_GLOBAL1; | |||
5595 | ||||
5596 | sym.st_info = ELF_ST_INFO (bind, type)(((bind) << 4) + ((type) & 0xF)); | |||
5597 | } | |||
5598 | ||||
5599 | if (type_ptr != NULL((void*)0)) | |||
5600 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |||
5601 | else | |||
5602 | sym.st_other = 0; | |||
5603 | ||||
5604 | bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx); | |||
5605 | outbound_syms += bed->s->sizeof_sym; | |||
5606 | if (outbound_shndx != NULL((void*)0)) | |||
5607 | outbound_shndx += sizeof (Elf_External_Sym_Shndx); | |||
5608 | } | |||
5609 | ||||
5610 | *sttp = stt; | |||
5611 | symstrtab_hdr->sh_size = _bfd_stringtab_size (stt); | |||
5612 | symstrtab_hdr->sh_type = SHT_STRTAB3; | |||
5613 | ||||
5614 | symstrtab_hdr->sh_flags = 0; | |||
5615 | symstrtab_hdr->sh_addr = 0; | |||
5616 | symstrtab_hdr->sh_entsize = 0; | |||
5617 | symstrtab_hdr->sh_link = 0; | |||
5618 | symstrtab_hdr->sh_info = 0; | |||
5619 | symstrtab_hdr->sh_addralign = 1; | |||
5620 | ||||
5621 | return TRUE1; | |||
5622 | } | |||
5623 | ||||
5624 | /* Return the number of bytes required to hold the symtab vector. | |||
5625 | ||||
5626 | Note that we base it on the count plus 1, since we will null terminate | |||
5627 | the vector allocated based on this size. However, the ELF symbol table | |||
5628 | always has a dummy entry as symbol #0, so it ends up even. */ | |||
5629 | ||||
5630 | long | |||
5631 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) | |||
5632 | { | |||
5633 | long symcount; | |||
5634 | long symtab_size; | |||
5635 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->symtab_hdr; | |||
5636 | ||||
5637 | symcount = hdr->sh_size / get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->sizeof_sym; | |||
5638 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); | |||
5639 | if (symcount > 0) | |||
5640 | symtab_size -= sizeof (asymbol *); | |||
5641 | ||||
5642 | return symtab_size; | |||
5643 | } | |||
5644 | ||||
5645 | long | |||
5646 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) | |||
5647 | { | |||
5648 | long symcount; | |||
5649 | long symtab_size; | |||
5650 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynsymtab_hdr; | |||
5651 | ||||
5652 | if (elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) == 0) | |||
5653 | { | |||
5654 | bfd_set_error (bfd_error_invalid_operation); | |||
5655 | return -1; | |||
5656 | } | |||
5657 | ||||
5658 | symcount = hdr->sh_size / get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->sizeof_sym; | |||
5659 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); | |||
5660 | if (symcount > 0) | |||
5661 | symtab_size -= sizeof (asymbol *); | |||
5662 | ||||
5663 | return symtab_size; | |||
5664 | } | |||
5665 | ||||
5666 | long | |||
5667 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
5668 | sec_ptr asect) | |||
5669 | { | |||
5670 | return (asect->reloc_count + 1) * sizeof (arelent *); | |||
5671 | } | |||
5672 | ||||
5673 | /* Canonicalize the relocs. */ | |||
5674 | ||||
5675 | long | |||
5676 | _bfd_elf_canonicalize_reloc (bfd *abfd, | |||
5677 | sec_ptr section, | |||
5678 | arelent **relptr, | |||
5679 | asymbol **symbols) | |||
5680 | { | |||
5681 | arelent *tblptr; | |||
5682 | unsigned int i; | |||
5683 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
5684 | ||||
5685 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE0)) | |||
5686 | return -1; | |||
5687 | ||||
5688 | tblptr = section->relocation; | |||
5689 | for (i = 0; i < section->reloc_count; i++) | |||
5690 | *relptr++ = tblptr++; | |||
5691 | ||||
5692 | *relptr = NULL((void*)0); | |||
5693 | ||||
5694 | return section->reloc_count; | |||
5695 | } | |||
5696 | ||||
5697 | long | |||
5698 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) | |||
5699 | { | |||
5700 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
5701 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE0); | |||
5702 | ||||
5703 | if (symcount >= 0) | |||
5704 | bfd_get_symcount (abfd)((abfd)->symcount) = symcount; | |||
5705 | return symcount; | |||
5706 | } | |||
5707 | ||||
5708 | long | |||
5709 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, | |||
5710 | asymbol **allocation) | |||
5711 | { | |||
5712 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
5713 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE1); | |||
5714 | ||||
5715 | if (symcount >= 0) | |||
5716 | bfd_get_dynamic_symcount (abfd)((abfd)->dynsymcount) = symcount; | |||
5717 | return symcount; | |||
5718 | } | |||
5719 | ||||
5720 | /* Return the size required for the dynamic reloc entries. Any | |||
5721 | section that was actually installed in the BFD, and has type | |||
5722 | SHT_REL or SHT_RELA, and uses the dynamic symbol table, is | |||
5723 | considered to be a dynamic reloc section. */ | |||
5724 | ||||
5725 | long | |||
5726 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) | |||
5727 | { | |||
5728 | long ret; | |||
5729 | asection *s; | |||
5730 | ||||
5731 | if (elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) == 0) | |||
5732 | { | |||
5733 | bfd_set_error (bfd_error_invalid_operation); | |||
5734 | return -1; | |||
5735 | } | |||
5736 | ||||
5737 | ret = sizeof (arelent *); | |||
5738 | for (s = abfd->sections; s != NULL((void*)0); s = s->next) | |||
5739 | if (elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_link == elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) | |||
5740 | && (elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_type == SHT_REL9 | |||
5741 | || elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_type == SHT_RELA4)) | |||
5742 | ret += ((s->_raw_size / elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_entsize) | |||
5743 | * sizeof (arelent *)); | |||
5744 | ||||
5745 | return ret; | |||
5746 | } | |||
5747 | ||||
5748 | /* Canonicalize the dynamic relocation entries. Note that we return | |||
5749 | the dynamic relocations as a single block, although they are | |||
5750 | actually associated with particular sections; the interface, which | |||
5751 | was designed for SunOS style shared libraries, expects that there | |||
5752 | is only one set of dynamic relocs. Any section that was actually | |||
5753 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses | |||
5754 | the dynamic symbol table, is considered to be a dynamic reloc | |||
5755 | section. */ | |||
5756 | ||||
5757 | long | |||
5758 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, | |||
5759 | arelent **storage, | |||
5760 | asymbol **syms) | |||
5761 | { | |||
5762 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |||
5763 | asection *s; | |||
5764 | long ret; | |||
5765 | ||||
5766 | if (elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) == 0) | |||
5767 | { | |||
5768 | bfd_set_error (bfd_error_invalid_operation); | |||
5769 | return -1; | |||
5770 | } | |||
5771 | ||||
5772 | slurp_relocs = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->slurp_reloc_table; | |||
5773 | ret = 0; | |||
5774 | for (s = abfd->sections; s != NULL((void*)0); s = s->next) | |||
5775 | { | |||
5776 | if (elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_link == elf_dynsymtab (abfd)(((abfd) -> tdata.elf_obj_data) -> dynsymtab_section) | |||
5777 | && (elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_type == SHT_REL9 | |||
5778 | || elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_type == SHT_RELA4)) | |||
5779 | { | |||
5780 | arelent *p; | |||
5781 | long count, i; | |||
5782 | ||||
5783 | if (! (*slurp_relocs) (abfd, s, syms, TRUE1)) | |||
5784 | return -1; | |||
5785 | count = s->_raw_size / elf_section_data (s)((struct bfd_elf_section_data*)s->used_by_bfd)->this_hdr.sh_entsize; | |||
5786 | p = s->relocation; | |||
5787 | for (i = 0; i < count; i++) | |||
5788 | *storage++ = p++; | |||
5789 | ret += count; | |||
5790 | } | |||
5791 | } | |||
5792 | ||||
5793 | *storage = NULL((void*)0); | |||
5794 | ||||
5795 | return ret; | |||
5796 | } | |||
5797 | ||||
5798 | /* Read in the version information. */ | |||
5799 | ||||
5800 | bfd_boolean | |||
5801 | _bfd_elf_slurp_version_tables (bfd *abfd) | |||
5802 | { | |||
5803 | bfd_byte *contents = NULL((void*)0); | |||
5804 | bfd_size_type amt; | |||
5805 | ||||
5806 | if (elf_dynverdef (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverdef_section) != 0) | |||
5807 | { | |||
5808 | Elf_Internal_Shdr *hdr; | |||
5809 | Elf_External_Verdef *everdef; | |||
5810 | Elf_Internal_Verdef *iverdef; | |||
5811 | Elf_Internal_Verdef *iverdefarr; | |||
5812 | Elf_Internal_Verdef iverdefmem; | |||
5813 | unsigned int i; | |||
5814 | unsigned int maxidx; | |||
5815 | ||||
5816 | hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynverdef_hdr; | |||
5817 | ||||
5818 | contents = bfd_malloc (hdr->sh_size); | |||
5819 | if (contents == NULL((void*)0)) | |||
5820 | goto error_return; | |||
5821 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET0) != 0 | |||
5822 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |||
5823 | goto error_return; | |||
5824 | ||||
5825 | /* We know the number of entries in the section but not the maximum | |||
5826 | index. Therefore we have to run through all entries and find | |||
5827 | the maximum. */ | |||
5828 | everdef = (Elf_External_Verdef *) contents; | |||
5829 | maxidx = 0; | |||
5830 | for (i = 0; i < hdr->sh_info; ++i) | |||
5831 | { | |||
5832 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |||
5833 | ||||
5834 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION0x7fff)) > maxidx) | |||
5835 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION0x7fff); | |||
5836 | ||||
5837 | everdef = ((Elf_External_Verdef *) | |||
5838 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |||
5839 | } | |||
5840 | ||||
5841 | amt = (bfd_size_type) maxidx * sizeof (Elf_Internal_Verdef); | |||
5842 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verdef = bfd_zalloc (abfd, amt); | |||
5843 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verdef == NULL((void*)0)) | |||
5844 | goto error_return; | |||
5845 | ||||
5846 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->cverdefs = maxidx; | |||
5847 | ||||
5848 | everdef = (Elf_External_Verdef *) contents; | |||
5849 | iverdefarr = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verdef; | |||
5850 | for (i = 0; i < hdr->sh_info; i++) | |||
5851 | { | |||
5852 | Elf_External_Verdaux *everdaux; | |||
5853 | Elf_Internal_Verdaux *iverdaux; | |||
5854 | unsigned int j; | |||
5855 | ||||
5856 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |||
5857 | ||||
5858 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION0x7fff) - 1]; | |||
5859 | memcpy (iverdef, &iverdefmem, sizeof (Elf_Internal_Verdef)); | |||
5860 | ||||
5861 | iverdef->vd_bfd = abfd; | |||
5862 | ||||
5863 | amt = (bfd_size_type) iverdef->vd_cnt * sizeof (Elf_Internal_Verdaux); | |||
5864 | iverdef->vd_auxptr = bfd_alloc (abfd, amt); | |||
5865 | if (iverdef->vd_auxptr == NULL((void*)0)) | |||
5866 | goto error_return; | |||
5867 | ||||
5868 | everdaux = ((Elf_External_Verdaux *) | |||
5869 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |||
5870 | iverdaux = iverdef->vd_auxptr; | |||
5871 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |||
5872 | { | |||
5873 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |||
5874 | ||||
5875 | iverdaux->vda_nodename = | |||
5876 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |||
5877 | iverdaux->vda_name); | |||
5878 | if (iverdaux->vda_nodename == NULL((void*)0)) | |||
5879 | goto error_return; | |||
5880 | ||||
5881 | if (j + 1 < iverdef->vd_cnt) | |||
5882 | iverdaux->vda_nextptr = iverdaux + 1; | |||
5883 | else | |||
5884 | iverdaux->vda_nextptr = NULL((void*)0); | |||
5885 | ||||
5886 | everdaux = ((Elf_External_Verdaux *) | |||
5887 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |||
5888 | } | |||
5889 | ||||
5890 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |||
5891 | ||||
5892 | if (i + 1 < hdr->sh_info) | |||
5893 | iverdef->vd_nextdef = iverdef + 1; | |||
5894 | else | |||
5895 | iverdef->vd_nextdef = NULL((void*)0); | |||
5896 | ||||
5897 | everdef = ((Elf_External_Verdef *) | |||
5898 | ((bfd_byte *) everdef + iverdef->vd_next)); | |||
5899 | } | |||
5900 | ||||
5901 | free (contents); | |||
5902 | contents = NULL((void*)0); | |||
5903 | } | |||
5904 | ||||
5905 | if (elf_dynverref (abfd)(((abfd) -> tdata.elf_obj_data) -> dynverref_section) != 0) | |||
5906 | { | |||
5907 | Elf_Internal_Shdr *hdr; | |||
5908 | Elf_External_Verneed *everneed; | |||
5909 | Elf_Internal_Verneed *iverneed; | |||
5910 | unsigned int i; | |||
5911 | ||||
5912 | hdr = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dynverref_hdr; | |||
5913 | ||||
5914 | amt = (bfd_size_type) hdr->sh_info * sizeof (Elf_Internal_Verneed); | |||
5915 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verref = bfd_zalloc (abfd, amt); | |||
5916 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verref == NULL((void*)0)) | |||
5917 | goto error_return; | |||
5918 | ||||
5919 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->cverrefs = hdr->sh_info; | |||
5920 | ||||
5921 | contents = bfd_malloc (hdr->sh_size); | |||
5922 | if (contents == NULL((void*)0)) | |||
5923 | goto error_return; | |||
5924 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET0) != 0 | |||
5925 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |||
5926 | goto error_return; | |||
5927 | ||||
5928 | everneed = (Elf_External_Verneed *) contents; | |||
5929 | iverneed = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->verref; | |||
5930 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |||
5931 | { | |||
5932 | Elf_External_Vernaux *evernaux; | |||
5933 | Elf_Internal_Vernaux *ivernaux; | |||
5934 | unsigned int j; | |||
5935 | ||||
5936 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |||
5937 | ||||
5938 | iverneed->vn_bfd = abfd; | |||
5939 | ||||
5940 | iverneed->vn_filename = | |||
5941 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |||
5942 | iverneed->vn_file); | |||
5943 | if (iverneed->vn_filename == NULL((void*)0)) | |||
5944 | goto error_return; | |||
5945 | ||||
5946 | amt = iverneed->vn_cnt; | |||
5947 | amt *= sizeof (Elf_Internal_Vernaux); | |||
5948 | iverneed->vn_auxptr = bfd_alloc (abfd, amt); | |||
5949 | ||||
5950 | evernaux = ((Elf_External_Vernaux *) | |||
5951 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |||
5952 | ivernaux = iverneed->vn_auxptr; | |||
5953 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |||
5954 | { | |||
5955 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |||
5956 | ||||
5957 | ivernaux->vna_nodename = | |||
5958 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |||
5959 | ivernaux->vna_name); | |||
5960 | if (ivernaux->vna_nodename == NULL((void*)0)) | |||
5961 | goto error_return; | |||
5962 | ||||
5963 | if (j + 1 < iverneed->vn_cnt) | |||
5964 | ivernaux->vna_nextptr = ivernaux + 1; | |||
5965 | else | |||
5966 | ivernaux->vna_nextptr = NULL((void*)0); | |||
5967 | ||||
5968 | evernaux = ((Elf_External_Vernaux *) | |||
5969 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |||
5970 | } | |||
5971 | ||||
5972 | if (i + 1 < hdr->sh_info) | |||
5973 | iverneed->vn_nextref = iverneed + 1; | |||
5974 | else | |||
5975 | iverneed->vn_nextref = NULL((void*)0); | |||
5976 | ||||
5977 | everneed = ((Elf_External_Verneed *) | |||
5978 | ((bfd_byte *) everneed + iverneed->vn_next)); | |||
5979 | } | |||
5980 | ||||
5981 | free (contents); | |||
5982 | contents = NULL((void*)0); | |||
5983 | } | |||
5984 | ||||
5985 | return TRUE1; | |||
5986 | ||||
5987 | error_return: | |||
5988 | if (contents != NULL((void*)0)) | |||
5989 | free (contents); | |||
5990 | return FALSE0; | |||
5991 | } | |||
5992 | ||||
5993 | asymbol * | |||
5994 | _bfd_elf_make_empty_symbol (bfd *abfd) | |||
5995 | { | |||
5996 | elf_symbol_type *newsym; | |||
5997 | bfd_size_type amt = sizeof (elf_symbol_type); | |||
5998 | ||||
5999 | newsym = bfd_zalloc (abfd, amt); | |||
6000 | if (!newsym) | |||
6001 | return NULL((void*)0); | |||
6002 | else | |||
6003 | { | |||
6004 | newsym->symbol.the_bfd = abfd; | |||
6005 | return &newsym->symbol; | |||
6006 | } | |||
6007 | } | |||
6008 | ||||
6009 | void | |||
6010 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6011 | asymbol *symbol, | |||
6012 | symbol_info *ret) | |||
6013 | { | |||
6014 | bfd_symbol_info (symbol, ret); | |||
6015 | } | |||
6016 | ||||
6017 | /* Return whether a symbol name implies a local symbol. Most targets | |||
6018 | use this function for the is_local_label_name entry point, but some | |||
6019 | override it. */ | |||
6020 | ||||
6021 | bfd_boolean | |||
6022 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6023 | const char *name) | |||
6024 | { | |||
6025 | /* Normal local symbols start with ``.L''. */ | |||
6026 | if (name[0] == '.' && name[1] == 'L') | |||
6027 | return TRUE1; | |||
6028 | ||||
6029 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |||
6030 | DWARF debugging symbols starting with ``..''. */ | |||
6031 | if (name[0] == '.' && name[1] == '.') | |||
6032 | return TRUE1; | |||
6033 | ||||
6034 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |||
6035 | emitting DWARF debugging output. I suspect this is actually a | |||
6036 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |||
6037 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |||
6038 | underscore to be emitted on some ELF targets). For ease of use, | |||
6039 | we treat such symbols as local. */ | |||
6040 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |||
6041 | return TRUE1; | |||
6042 | ||||
6043 | return FALSE0; | |||
6044 | } | |||
6045 | ||||
6046 | alent * | |||
6047 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6048 | asymbol *symbol ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | |||
6049 | { | |||
6050 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c", 6050, __PRETTY_FUNCTION__ ); | |||
6051 | return NULL((void*)0); | |||
6052 | } | |||
6053 | ||||
6054 | bfd_boolean | |||
6055 | _bfd_elf_set_arch_mach (bfd *abfd, | |||
6056 | enum bfd_architecture arch, | |||
6057 | unsigned long machine) | |||
6058 | { | |||
6059 | /* If this isn't the right architecture for this backend, and this | |||
6060 | isn't the generic backend, fail. */ | |||
6061 | if (arch != get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->arch | |||
6062 | && arch != bfd_arch_unknown | |||
6063 | && get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->arch != bfd_arch_unknown) | |||
6064 | return FALSE0; | |||
6065 | ||||
6066 | return bfd_default_set_arch_mach (abfd, arch, machine); | |||
6067 | } | |||
6068 | ||||
6069 | /* Find the function to a particular section and offset, | |||
6070 | for error reporting. */ | |||
6071 | ||||
6072 | static bfd_boolean | |||
6073 | elf_find_function (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6074 | asection *section, | |||
6075 | asymbol **symbols, | |||
6076 | bfd_vma offset, | |||
6077 | const char **filename_ptr, | |||
6078 | const char **functionname_ptr) | |||
6079 | { | |||
6080 | const char *filename; | |||
6081 | asymbol *func; | |||
6082 | bfd_vma low_func; | |||
6083 | asymbol **p; | |||
6084 | ||||
6085 | filename = NULL((void*)0); | |||
6086 | func = NULL((void*)0); | |||
6087 | low_func = 0; | |||
6088 | ||||
6089 | for (p = symbols; *p != NULL((void*)0); p++) | |||
6090 | { | |||
6091 | elf_symbol_type *q; | |||
6092 | ||||
6093 | q = (elf_symbol_type *) *p; | |||
6094 | ||||
6095 | if (bfd_get_section (&q->symbol)((&q->symbol)->section) != section) | |||
6096 | continue; | |||
6097 | ||||
6098 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)((q->internal_elf_sym.st_info) & 0xF)) | |||
6099 | { | |||
6100 | default: | |||
6101 | break; | |||
6102 | case STT_FILE4: | |||
6103 | filename = bfd_asymbol_name (&q->symbol)((&q->symbol)->name); | |||
6104 | break; | |||
6105 | case STT_NOTYPE0: | |||
6106 | case STT_FUNC2: | |||
6107 | if (q->symbol.section == section | |||
6108 | && q->symbol.value >= low_func | |||
6109 | && q->symbol.value <= offset) | |||
6110 | { | |||
6111 | func = (asymbol *) q; | |||
6112 | low_func = q->symbol.value; | |||
6113 | } | |||
6114 | break; | |||
6115 | } | |||
6116 | } | |||
6117 | ||||
6118 | if (func == NULL((void*)0)) | |||
6119 | return FALSE0; | |||
6120 | ||||
6121 | if (filename_ptr) | |||
6122 | *filename_ptr = filename; | |||
6123 | if (functionname_ptr) | |||
6124 | *functionname_ptr = bfd_asymbol_name (func)((func)->name); | |||
6125 | ||||
6126 | return TRUE1; | |||
6127 | } | |||
6128 | ||||
6129 | /* Find the nearest line to a particular section and offset, | |||
6130 | for error reporting. */ | |||
6131 | ||||
6132 | bfd_boolean | |||
6133 | _bfd_elf_find_nearest_line (bfd *abfd, | |||
6134 | asection *section, | |||
6135 | asymbol **symbols, | |||
6136 | bfd_vma offset, | |||
6137 | const char **filename_ptr, | |||
6138 | const char **functionname_ptr, | |||
6139 | unsigned int *line_ptr) | |||
6140 | { | |||
6141 | bfd_boolean found; | |||
6142 | ||||
6143 | if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, | |||
6144 | filename_ptr, functionname_ptr, | |||
6145 | line_ptr)) | |||
6146 | { | |||
6147 | if (!*functionname_ptr) | |||
6148 | elf_find_function (abfd, section, symbols, offset, | |||
6149 | *filename_ptr ? NULL((void*)0) : filename_ptr, | |||
6150 | functionname_ptr); | |||
6151 | ||||
6152 | return TRUE1; | |||
6153 | } | |||
6154 | ||||
6155 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |||
6156 | filename_ptr, functionname_ptr, | |||
6157 | line_ptr, 0, | |||
6158 | &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->dwarf2_find_line_info)) | |||
6159 | { | |||
6160 | if (!*functionname_ptr) | |||
6161 | elf_find_function (abfd, section, symbols, offset, | |||
6162 | *filename_ptr ? NULL((void*)0) : filename_ptr, | |||
6163 | functionname_ptr); | |||
6164 | ||||
6165 | return TRUE1; | |||
6166 | } | |||
6167 | ||||
6168 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |||
6169 | &found, filename_ptr, | |||
6170 | functionname_ptr, line_ptr, | |||
6171 | &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->line_info)) | |||
6172 | return FALSE0; | |||
6173 | if (found && (*functionname_ptr || *line_ptr)) | |||
6174 | return TRUE1; | |||
6175 | ||||
6176 | if (symbols == NULL((void*)0)) | |||
6177 | return FALSE0; | |||
6178 | ||||
6179 | if (! elf_find_function (abfd, section, symbols, offset, | |||
6180 | filename_ptr, functionname_ptr)) | |||
6181 | return FALSE0; | |||
6182 | ||||
6183 | *line_ptr = 0; | |||
6184 | return TRUE1; | |||
6185 | } | |||
6186 | ||||
6187 | int | |||
6188 | _bfd_elf_sizeof_headers (bfd *abfd, bfd_boolean reloc) | |||
6189 | { | |||
6190 | int ret; | |||
6191 | ||||
6192 | ret = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->sizeof_ehdr; | |||
6193 | if (! reloc) | |||
6194 | ret += get_program_header_size (abfd); | |||
6195 | return ret; | |||
6196 | } | |||
6197 | ||||
6198 | bfd_boolean | |||
6199 | _bfd_elf_set_section_contents (bfd *abfd, | |||
6200 | sec_ptr section, | |||
6201 | const void *location, | |||
6202 | file_ptr offset, | |||
6203 | bfd_size_type count) | |||
6204 | { | |||
6205 | Elf_Internal_Shdr *hdr; | |||
6206 | bfd_signed_vma pos; | |||
6207 | ||||
6208 | if (! abfd->output_has_begun | |||
6209 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL((void*)0))) | |||
6210 | return FALSE0; | |||
6211 | ||||
6212 | hdr = &elf_section_data (section)((struct bfd_elf_section_data*)section->used_by_bfd)->this_hdr; | |||
6213 | pos = hdr->sh_offset + offset; | |||
6214 | if (bfd_seek (abfd, pos, SEEK_SET0) != 0 | |||
6215 | || bfd_bwrite (location, count, abfd) != count) | |||
6216 | return FALSE0; | |||
6217 | ||||
6218 | return TRUE1; | |||
6219 | } | |||
6220 | ||||
6221 | void | |||
6222 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6223 | arelent *cache_ptr ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6224 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | |||
6225 | { | |||
6226 | abort ()_bfd_abort ("/usr/src/gnu/usr.bin/binutils/bfd/elf.c", 6226, __PRETTY_FUNCTION__ ); | |||
6227 | } | |||
6228 | ||||
6229 | /* Try to convert a non-ELF reloc into an ELF one. */ | |||
6230 | ||||
6231 | bfd_boolean | |||
6232 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) | |||
6233 | { | |||
6234 | /* Check whether we really have an ELF howto. */ | |||
6235 | ||||
6236 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |||
6237 | { | |||
6238 | bfd_reloc_code_real_type code; | |||
6239 | reloc_howto_type *howto; | |||
6240 | ||||
6241 | /* Alien reloc: Try to determine its type to replace it with an | |||
6242 | equivalent ELF reloc. */ | |||
6243 | ||||
6244 | if (areloc->howto->pc_relative) | |||
6245 | { | |||
6246 | switch (areloc->howto->bitsize) | |||
6247 | { | |||
6248 | case 8: | |||
6249 | code = BFD_RELOC_8_PCREL; | |||
6250 | break; | |||
6251 | case 12: | |||
6252 | code = BFD_RELOC_12_PCREL; | |||
6253 | break; | |||
6254 | case 16: | |||
6255 | code = BFD_RELOC_16_PCREL; | |||
6256 | break; | |||
6257 | case 24: | |||
6258 | code = BFD_RELOC_24_PCREL; | |||
6259 | break; | |||
6260 | case 32: | |||
6261 | code = BFD_RELOC_32_PCREL; | |||
6262 | break; | |||
6263 | case 64: | |||
6264 | code = BFD_RELOC_64_PCREL; | |||
6265 | break; | |||
6266 | default: | |||
6267 | goto fail; | |||
6268 | } | |||
6269 | ||||
6270 | howto = bfd_reloc_type_lookup (abfd, code); | |||
6271 | ||||
6272 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |||
6273 | { | |||
6274 | if (howto->pcrel_offset) | |||
6275 | areloc->addend += areloc->address; | |||
6276 | else | |||
6277 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |||
6278 | } | |||
6279 | } | |||
6280 | else | |||
6281 | { | |||
6282 | switch (areloc->howto->bitsize) | |||
6283 | { | |||
6284 | case 8: | |||
6285 | code = BFD_RELOC_8; | |||
6286 | break; | |||
6287 | case 14: | |||
6288 | code = BFD_RELOC_14; | |||
6289 | break; | |||
6290 | case 16: | |||
6291 | code = BFD_RELOC_16; | |||
6292 | break; | |||
6293 | case 26: | |||
6294 | code = BFD_RELOC_26; | |||
6295 | break; | |||
6296 | case 32: | |||
6297 | code = BFD_RELOC_32; | |||
6298 | break; | |||
6299 | case 64: | |||
6300 | code = BFD_RELOC_64; | |||
6301 | break; | |||
6302 | default: | |||
6303 | goto fail; | |||
6304 | } | |||
6305 | ||||
6306 | howto = bfd_reloc_type_lookup (abfd, code); | |||
6307 | } | |||
6308 | ||||
6309 | if (howto) | |||
6310 | areloc->howto = howto; | |||
6311 | else | |||
6312 | goto fail; | |||
6313 | } | |||
6314 | ||||
6315 | return TRUE1; | |||
6316 | ||||
6317 | fail: | |||
6318 | (*_bfd_error_handler) | |||
6319 | (_("%s: unsupported relocation type %s")("%s: unsupported relocation type %s"), | |||
6320 | bfd_archive_filename (abfd), areloc->howto->name); | |||
6321 | bfd_set_error (bfd_error_bad_value); | |||
6322 | return FALSE0; | |||
6323 | } | |||
6324 | ||||
6325 | bfd_boolean | |||
6326 | _bfd_elf_close_and_cleanup (bfd *abfd) | |||
6327 | { | |||
6328 | if (bfd_get_format (abfd)((abfd)->format) == bfd_object) | |||
6329 | { | |||
6330 | if (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr) != NULL((void*)0)) | |||
6331 | _bfd_elf_strtab_free (elf_shstrtab (abfd)(((abfd) -> tdata.elf_obj_data) -> strtab_ptr)); | |||
6332 | } | |||
6333 | ||||
6334 | return _bfd_generic_close_and_cleanupbfd_true (abfd); | |||
6335 | } | |||
6336 | ||||
6337 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |||
6338 | in the relocation's offset. Thus we cannot allow any sort of sanity | |||
6339 | range-checking to interfere. There is nothing else to do in processing | |||
6340 | this reloc. */ | |||
6341 | ||||
6342 | bfd_reloc_status_type | |||
6343 | _bfd_elf_rel_vtable_reloc_fn | |||
6344 | (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), arelent *re ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6345 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6346 | void *data ATTRIBUTE_UNUSED__attribute__ ((__unused__)), asection *is ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
6347 | bfd *obfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), char **errmsg ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | |||
6348 | { | |||
6349 | return bfd_reloc_ok; | |||
6350 | } | |||
6351 | ||||
6352 | /* Elf core file support. Much of this only works on native | |||
6353 | toolchains, since we rely on knowing the | |||
6354 | machine-dependent procfs structure in order to pick | |||
6355 | out details about the corefile. */ | |||
6356 | ||||
6357 | #ifdef HAVE_SYS_PROCFS_H | |||
6358 | # include <sys/procfs.h> | |||
6359 | #endif | |||
6360 | ||||
6361 | /* FIXME: this is kinda wrong, but it's what gdb wants. */ | |||
6362 | ||||
6363 | static int | |||
6364 | elfcore_make_pid (bfd *abfd) | |||
6365 | { | |||
6366 | int pid; | |||
6367 | ||||
6368 | pid = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid; | |||
6369 | if (pid == 0) | |||
6370 | pid = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid; | |||
6371 | ||||
6372 | return pid; | |||
6373 | } | |||
6374 | ||||
6375 | /* If there isn't a section called NAME, make one, using | |||
6376 | data from SECT. Note, this function will generate a | |||
6377 | reference to NAME, so you shouldn't deallocate or | |||
6378 | overwrite it. */ | |||
6379 | ||||
6380 | static bfd_boolean | |||
6381 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) | |||
6382 | { | |||
6383 | asection *sect2; | |||
6384 | ||||
6385 | if (bfd_get_section_by_name (abfd, name) != NULL((void*)0)) | |||
6386 | return TRUE1; | |||
6387 | ||||
6388 | sect2 = bfd_make_section (abfd, name); | |||
6389 | if (sect2 == NULL((void*)0)) | |||
6390 | return FALSE0; | |||
6391 | ||||
6392 | sect2->_raw_size = sect->_raw_size; | |||
6393 | sect2->filepos = sect->filepos; | |||
6394 | sect2->flags = sect->flags; | |||
6395 | sect2->alignment_power = sect->alignment_power; | |||
6396 | return TRUE1; | |||
6397 | } | |||
6398 | ||||
6399 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This | |||
6400 | actually creates up to two pseudosections: | |||
6401 | - For the single-threaded case, a section named NAME, unless | |||
6402 | such a section already exists. | |||
6403 | - For the multi-threaded case, a section named "NAME/PID", where | |||
6404 | PID is elfcore_make_pid (abfd). | |||
6405 | Both pseudosections have identical contents. */ | |||
6406 | bfd_boolean | |||
6407 | _bfd_elfcore_make_pseudosection (bfd *abfd, | |||
6408 | char *name, | |||
6409 | size_t size, | |||
6410 | ufile_ptr filepos) | |||
6411 | { | |||
6412 | char buf[100]; | |||
6413 | char *threaded_name; | |||
6414 | size_t len; | |||
6415 | asection *sect; | |||
6416 | ||||
6417 | /* Build the section name. */ | |||
6418 | ||||
6419 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |||
6420 | len = strlen (buf) + 1; | |||
6421 | threaded_name = bfd_alloc (abfd, len); | |||
6422 | if (threaded_name == NULL((void*)0)) | |||
6423 | return FALSE0; | |||
6424 | memcpy (threaded_name, buf, len); | |||
6425 | ||||
6426 | sect = bfd_make_section_anyway (abfd, threaded_name); | |||
6427 | if (sect == NULL((void*)0)) | |||
6428 | return FALSE0; | |||
6429 | sect->_raw_size = size; | |||
6430 | sect->filepos = filepos; | |||
6431 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
6432 | sect->alignment_power = 2; | |||
6433 | ||||
6434 | return elfcore_maybe_make_sect (abfd, name, sect); | |||
6435 | } | |||
6436 | ||||
6437 | /* prstatus_t exists on: | |||
6438 | solaris 2.5+ | |||
6439 | linux 2.[01] + glibc | |||
6440 | unixware 4.2 | |||
6441 | */ | |||
6442 | ||||
6443 | #if defined (HAVE_PRSTATUS_T) | |||
6444 | ||||
6445 | static bfd_boolean | |||
6446 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |||
6447 | { | |||
6448 | size_t raw_size; | |||
6449 | int offset; | |||
6450 | ||||
6451 | if (note->descsz == sizeof (prstatus_t)) | |||
6452 | { | |||
6453 | prstatus_t prstat; | |||
6454 | ||||
6455 | raw_size = sizeof (prstat.pr_reg); | |||
6456 | offset = offsetof (prstatus_t, pr_reg)__builtin_offsetof(prstatus_t, pr_reg); | |||
6457 | memcpy (&prstat, note->descdata, sizeof (prstat)); | |||
6458 | ||||
6459 | /* Do not overwrite the core signal if it | |||
6460 | has already been set by another thread. */ | |||
6461 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal == 0) | |||
6462 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal = prstat.pr_cursig; | |||
6463 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid = prstat.pr_pid; | |||
6464 | ||||
6465 | /* pr_who exists on: | |||
6466 | solaris 2.5+ | |||
6467 | unixware 4.2 | |||
6468 | pr_who doesn't exist on: | |||
6469 | linux 2.[01] | |||
6470 | */ | |||
6471 | #if defined (HAVE_PRSTATUS_T_PR_WHO) | |||
6472 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = prstat.pr_who; | |||
6473 | #endif | |||
6474 | } | |||
6475 | #if defined (HAVE_PRSTATUS32_T) | |||
6476 | else if (note->descsz == sizeof (prstatus32_t)) | |||
6477 | { | |||
6478 | /* 64-bit host, 32-bit corefile */ | |||
6479 | prstatus32_t prstat; | |||
6480 | ||||
6481 | raw_size = sizeof (prstat.pr_reg); | |||
6482 | offset = offsetof (prstatus32_t, pr_reg)__builtin_offsetof(prstatus32_t, pr_reg); | |||
6483 | memcpy (&prstat, note->descdata, sizeof (prstat)); | |||
6484 | ||||
6485 | /* Do not overwrite the core signal if it | |||
6486 | has already been set by another thread. */ | |||
6487 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal == 0) | |||
6488 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal = prstat.pr_cursig; | |||
6489 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid = prstat.pr_pid; | |||
6490 | ||||
6491 | /* pr_who exists on: | |||
6492 | solaris 2.5+ | |||
6493 | unixware 4.2 | |||
6494 | pr_who doesn't exist on: | |||
6495 | linux 2.[01] | |||
6496 | */ | |||
6497 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) | |||
6498 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = prstat.pr_who; | |||
6499 | #endif | |||
6500 | } | |||
6501 | #endif /* HAVE_PRSTATUS32_T */ | |||
6502 | else | |||
6503 | { | |||
6504 | /* Fail - we don't know how to handle any other | |||
6505 | note size (ie. data object type). */ | |||
6506 | return TRUE1; | |||
6507 | } | |||
6508 | ||||
6509 | /* Make a ".reg/999" section and a ".reg" section. */ | |||
6510 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |||
6511 | raw_size, note->descpos + offset); | |||
6512 | } | |||
6513 | #endif /* defined (HAVE_PRSTATUS_T) */ | |||
6514 | ||||
6515 | /* Create a pseudosection containing the exact contents of NOTE. */ | |||
6516 | static bfd_boolean | |||
6517 | elfcore_make_note_pseudosection (bfd *abfd, | |||
6518 | char *name, | |||
6519 | Elf_Internal_Note *note) | |||
6520 | { | |||
6521 | return _bfd_elfcore_make_pseudosection (abfd, name, | |||
6522 | note->descsz, note->descpos); | |||
6523 | } | |||
6524 | ||||
6525 | /* There isn't a consistent prfpregset_t across platforms, | |||
6526 | but it doesn't matter, because we don't have to pick this | |||
6527 | data structure apart. */ | |||
6528 | ||||
6529 | static bfd_boolean | |||
6530 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) | |||
6531 | { | |||
6532 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |||
6533 | } | |||
6534 | ||||
6535 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note | |||
6536 | type of 5 (NT_PRXFPREG). Just include the whole note's contents | |||
6537 | literally. */ | |||
6538 | ||||
6539 | static bfd_boolean | |||
6540 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) | |||
6541 | { | |||
6542 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |||
6543 | } | |||
6544 | ||||
6545 | #if defined (HAVE_PRPSINFO_T) | |||
6546 | typedef prpsinfo_t elfcore_psinfo_t; | |||
6547 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ | |||
6548 | typedef prpsinfo32_t elfcore_psinfo32_t; | |||
6549 | #endif | |||
6550 | #endif | |||
6551 | ||||
6552 | #if defined (HAVE_PSINFO_T) | |||
6553 | typedef psinfo_t elfcore_psinfo_t; | |||
6554 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ | |||
6555 | typedef psinfo32_t elfcore_psinfo32_t; | |||
6556 | #endif | |||
6557 | #endif | |||
6558 | ||||
6559 | /* return a malloc'ed copy of a string at START which is at | |||
6560 | most MAX bytes long, possibly without a terminating '\0'. | |||
6561 | the copy will always have a terminating '\0'. */ | |||
6562 | ||||
6563 | char * | |||
6564 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) | |||
6565 | { | |||
6566 | char *dups; | |||
6567 | char *end = memchr (start, '\0', max); | |||
6568 | size_t len; | |||
6569 | ||||
6570 | if (end == NULL((void*)0)) | |||
6571 | len = max; | |||
6572 | else | |||
6573 | len = end - start; | |||
6574 | ||||
6575 | dups = bfd_alloc (abfd, len + 1); | |||
6576 | if (dups == NULL((void*)0)) | |||
6577 | return NULL((void*)0); | |||
6578 | ||||
6579 | memcpy (dups, start, len); | |||
6580 | dups[len] = '\0'; | |||
6581 | ||||
6582 | return dups; | |||
6583 | } | |||
6584 | ||||
6585 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) | |||
6586 | static bfd_boolean | |||
6587 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |||
6588 | { | |||
6589 | if (note->descsz == sizeof (elfcore_psinfo_t)) | |||
6590 | { | |||
6591 | elfcore_psinfo_t psinfo; | |||
6592 | ||||
6593 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); | |||
6594 | ||||
6595 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_program | |||
6596 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, | |||
6597 | sizeof (psinfo.pr_fname)); | |||
6598 | ||||
6599 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_command | |||
6600 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, | |||
6601 | sizeof (psinfo.pr_psargs)); | |||
6602 | } | |||
6603 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) | |||
6604 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) | |||
6605 | { | |||
6606 | /* 64-bit host, 32-bit corefile */ | |||
6607 | elfcore_psinfo32_t psinfo; | |||
6608 | ||||
6609 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); | |||
6610 | ||||
6611 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_program | |||
6612 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, | |||
6613 | sizeof (psinfo.pr_fname)); | |||
6614 | ||||
6615 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_command | |||
6616 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, | |||
6617 | sizeof (psinfo.pr_psargs)); | |||
6618 | } | |||
6619 | #endif | |||
6620 | ||||
6621 | else | |||
6622 | { | |||
6623 | /* Fail - we don't know how to handle any other | |||
6624 | note size (ie. data object type). */ | |||
6625 | return TRUE1; | |||
6626 | } | |||
6627 | ||||
6628 | /* Note that for some reason, a spurious space is tacked | |||
6629 | onto the end of the args in some (at least one anyway) | |||
6630 | implementations, so strip it off if it exists. */ | |||
6631 | ||||
6632 | { | |||
6633 | char *command = elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_command; | |||
6634 | int n = strlen (command); | |||
6635 | ||||
6636 | if (0 < n && command[n - 1] == ' ') | |||
6637 | command[n - 1] = '\0'; | |||
6638 | } | |||
6639 | ||||
6640 | return TRUE1; | |||
6641 | } | |||
6642 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |||
6643 | ||||
6644 | #if defined (HAVE_PSTATUS_T) | |||
6645 | static bfd_boolean | |||
6646 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) | |||
6647 | { | |||
6648 | if (note->descsz == sizeof (pstatus_t) | |||
6649 | #if defined (HAVE_PXSTATUS_T) | |||
6650 | || note->descsz == sizeof (pxstatus_t) | |||
6651 | #endif | |||
6652 | ) | |||
6653 | { | |||
6654 | pstatus_t pstat; | |||
6655 | ||||
6656 | memcpy (&pstat, note->descdata, sizeof (pstat)); | |||
6657 | ||||
6658 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid = pstat.pr_pid; | |||
6659 | } | |||
6660 | #if defined (HAVE_PSTATUS32_T) | |||
6661 | else if (note->descsz == sizeof (pstatus32_t)) | |||
6662 | { | |||
6663 | /* 64-bit host, 32-bit corefile */ | |||
6664 | pstatus32_t pstat; | |||
6665 | ||||
6666 | memcpy (&pstat, note->descdata, sizeof (pstat)); | |||
6667 | ||||
6668 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid = pstat.pr_pid; | |||
6669 | } | |||
6670 | #endif | |||
6671 | /* Could grab some more details from the "representative" | |||
6672 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |||
6673 | NT_LWPSTATUS note, presumably. */ | |||
6674 | ||||
6675 | return TRUE1; | |||
6676 | } | |||
6677 | #endif /* defined (HAVE_PSTATUS_T) */ | |||
6678 | ||||
6679 | #if defined (HAVE_LWPSTATUS_T) | |||
6680 | static bfd_boolean | |||
6681 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) | |||
6682 | { | |||
6683 | lwpstatus_t lwpstat; | |||
6684 | char buf[100]; | |||
6685 | char *name; | |||
6686 | size_t len; | |||
6687 | asection *sect; | |||
6688 | ||||
6689 | if (note->descsz != sizeof (lwpstat) | |||
6690 | #if defined (HAVE_LWPXSTATUS_T) | |||
6691 | && note->descsz != sizeof (lwpxstatus_t) | |||
6692 | #endif | |||
6693 | ) | |||
6694 | return TRUE1; | |||
6695 | ||||
6696 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |||
6697 | ||||
6698 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = lwpstat.pr_lwpid; | |||
6699 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal = lwpstat.pr_cursig; | |||
6700 | ||||
6701 | /* Make a ".reg/999" section. */ | |||
6702 | ||||
6703 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |||
6704 | len = strlen (buf) + 1; | |||
6705 | name = bfd_alloc (abfd, len); | |||
6706 | if (name == NULL((void*)0)) | |||
6707 | return FALSE0; | |||
6708 | memcpy (name, buf, len); | |||
6709 | ||||
6710 | sect = bfd_make_section_anyway (abfd, name); | |||
6711 | if (sect == NULL((void*)0)) | |||
6712 | return FALSE0; | |||
6713 | ||||
6714 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |||
6715 | sect->_raw_size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); | |||
6716 | sect->filepos = note->descpos | |||
6717 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs)__builtin_offsetof(lwpstatus_t, pr_context.uc_mcontext.gregs); | |||
6718 | #endif | |||
6719 | ||||
6720 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |||
6721 | sect->_raw_size = sizeof (lwpstat.pr_reg); | |||
6722 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg)__builtin_offsetof(lwpstatus_t, pr_reg); | |||
6723 | #endif | |||
6724 | ||||
6725 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
6726 | sect->alignment_power = 2; | |||
6727 | ||||
6728 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |||
6729 | return FALSE0; | |||
6730 | ||||
6731 | /* Make a ".reg2/999" section */ | |||
6732 | ||||
6733 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |||
6734 | len = strlen (buf) + 1; | |||
6735 | name = bfd_alloc (abfd, len); | |||
6736 | if (name == NULL((void*)0)) | |||
6737 | return FALSE0; | |||
6738 | memcpy (name, buf, len); | |||
6739 | ||||
6740 | sect = bfd_make_section_anyway (abfd, name); | |||
6741 | if (sect == NULL((void*)0)) | |||
6742 | return FALSE0; | |||
6743 | ||||
6744 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |||
6745 | sect->_raw_size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); | |||
6746 | sect->filepos = note->descpos | |||
6747 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs)__builtin_offsetof(lwpstatus_t, pr_context.uc_mcontext.fpregs ); | |||
6748 | #endif | |||
6749 | ||||
6750 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |||
6751 | sect->_raw_size = sizeof (lwpstat.pr_fpreg); | |||
6752 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg)__builtin_offsetof(lwpstatus_t, pr_fpreg); | |||
6753 | #endif | |||
6754 | ||||
6755 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
6756 | sect->alignment_power = 2; | |||
6757 | ||||
6758 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); | |||
6759 | } | |||
6760 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |||
6761 | ||||
6762 | #if defined (HAVE_WIN32_PSTATUS_T) | |||
6763 | static bfd_boolean | |||
6764 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) | |||
6765 | { | |||
6766 | char buf[30]; | |||
6767 | char *name; | |||
6768 | size_t len; | |||
6769 | asection *sect; | |||
6770 | win32_pstatus_t pstatus; | |||
6771 | ||||
6772 | if (note->descsz < sizeof (pstatus)) | |||
6773 | return TRUE1; | |||
6774 | ||||
6775 | memcpy (&pstatus, note->descdata, sizeof (pstatus)); | |||
6776 | ||||
6777 | switch (pstatus.data_type) | |||
6778 | { | |||
6779 | case NOTE_INFO_PROCESS: | |||
6780 | /* FIXME: need to add ->core_command. */ | |||
6781 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal = pstatus.data.process_info.signal; | |||
6782 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid = pstatus.data.process_info.pid; | |||
6783 | break; | |||
6784 | ||||
6785 | case NOTE_INFO_THREAD: | |||
6786 | /* Make a ".reg/999" section. */ | |||
6787 | sprintf (buf, ".reg/%d", pstatus.data.thread_info.tid); | |||
6788 | ||||
6789 | len = strlen (buf) + 1; | |||
6790 | name = bfd_alloc (abfd, len); | |||
6791 | if (name == NULL((void*)0)) | |||
6792 | return FALSE0; | |||
6793 | ||||
6794 | memcpy (name, buf, len); | |||
6795 | ||||
6796 | sect = bfd_make_section_anyway (abfd, name); | |||
6797 | if (sect == NULL((void*)0)) | |||
6798 | return FALSE0; | |||
6799 | ||||
6800 | sect->_raw_size = sizeof (pstatus.data.thread_info.thread_context); | |||
6801 | sect->filepos = (note->descpos | |||
6802 | + offsetof (struct win32_pstatus,__builtin_offsetof(struct win32_pstatus, data.thread_info.thread_context ) | |||
6803 | data.thread_info.thread_context)__builtin_offsetof(struct win32_pstatus, data.thread_info.thread_context )); | |||
6804 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
6805 | sect->alignment_power = 2; | |||
6806 | ||||
6807 | if (pstatus.data.thread_info.is_active_thread) | |||
6808 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) | |||
6809 | return FALSE0; | |||
6810 | break; | |||
6811 | ||||
6812 | case NOTE_INFO_MODULE: | |||
6813 | /* Make a ".module/xxxxxxxx" section. */ | |||
6814 | sprintf (buf, ".module/%08x", pstatus.data.module_info.base_address); | |||
6815 | ||||
6816 | len = strlen (buf) + 1; | |||
6817 | name = bfd_alloc (abfd, len); | |||
6818 | if (name == NULL((void*)0)) | |||
6819 | return FALSE0; | |||
6820 | ||||
6821 | memcpy (name, buf, len); | |||
6822 | ||||
6823 | sect = bfd_make_section_anyway (abfd, name); | |||
6824 | ||||
6825 | if (sect == NULL((void*)0)) | |||
6826 | return FALSE0; | |||
6827 | ||||
6828 | sect->_raw_size = note->descsz; | |||
6829 | sect->filepos = note->descpos; | |||
6830 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
6831 | sect->alignment_power = 2; | |||
6832 | break; | |||
6833 | ||||
6834 | default: | |||
6835 | return TRUE1; | |||
6836 | } | |||
6837 | ||||
6838 | return TRUE1; | |||
6839 | } | |||
6840 | #endif /* HAVE_WIN32_PSTATUS_T */ | |||
6841 | ||||
6842 | static bfd_boolean | |||
6843 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) | |||
6844 | { | |||
6845 | const struct elf_backend_data *bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
6846 | ||||
6847 | switch (note->type) | |||
6848 | { | |||
6849 | default: | |||
6850 | return TRUE1; | |||
6851 | ||||
6852 | case NT_PRSTATUS1: | |||
6853 | if (bed->elf_backend_grok_prstatus) | |||
6854 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |||
6855 | return TRUE1; | |||
6856 | #if defined (HAVE_PRSTATUS_T) | |||
6857 | return elfcore_grok_prstatus (abfd, note); | |||
6858 | #else | |||
6859 | return TRUE1; | |||
6860 | #endif | |||
6861 | ||||
6862 | #if defined (HAVE_PSTATUS_T) | |||
6863 | case NT_PSTATUS10: | |||
6864 | return elfcore_grok_pstatus (abfd, note); | |||
6865 | #endif | |||
6866 | ||||
6867 | #if defined (HAVE_LWPSTATUS_T) | |||
6868 | case NT_LWPSTATUS16: | |||
6869 | return elfcore_grok_lwpstatus (abfd, note); | |||
6870 | #endif | |||
6871 | ||||
6872 | case NT_FPREGSET2: /* FIXME: rename to NT_PRFPREG */ | |||
6873 | return elfcore_grok_prfpreg (abfd, note); | |||
6874 | ||||
6875 | #if defined (HAVE_WIN32_PSTATUS_T) | |||
6876 | case NT_WIN32PSTATUS18: | |||
6877 | return elfcore_grok_win32pstatus (abfd, note); | |||
6878 | #endif | |||
6879 | ||||
6880 | case NT_PRXFPREG0x46e62b7f: /* Linux SSE extension */ | |||
6881 | if (note->namesz == 6 | |||
6882 | && strcmp (note->namedata, "LINUX") == 0) | |||
6883 | return elfcore_grok_prxfpreg (abfd, note); | |||
6884 | else | |||
6885 | return TRUE1; | |||
6886 | ||||
6887 | case NT_PRPSINFO3: | |||
6888 | case NT_PSINFO13: | |||
6889 | if (bed->elf_backend_grok_psinfo) | |||
6890 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |||
6891 | return TRUE1; | |||
6892 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) | |||
6893 | return elfcore_grok_psinfo (abfd, note); | |||
6894 | #else | |||
6895 | return TRUE1; | |||
6896 | #endif | |||
6897 | ||||
6898 | case NT_AUXV6: | |||
6899 | { | |||
6900 | asection *sect = bfd_make_section_anyway (abfd, ".auxv"); | |||
6901 | ||||
6902 | if (sect == NULL((void*)0)) | |||
6903 | return FALSE0; | |||
6904 | sect->_raw_size = note->descsz; | |||
6905 | sect->filepos = note->descpos; | |||
6906 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
6907 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |||
6908 | ||||
6909 | return TRUE1; | |||
6910 | } | |||
6911 | } | |||
6912 | } | |||
6913 | ||||
6914 | static bfd_boolean | |||
6915 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) | |||
6916 | { | |||
6917 | char *cp; | |||
6918 | ||||
6919 | cp = strchr (note->namedata, '@'); | |||
6920 | if (cp != NULL((void*)0)) | |||
6921 | { | |||
6922 | *lwpidp = atoi(cp + 1); | |||
6923 | return TRUE1; | |||
6924 | } | |||
6925 | return FALSE0; | |||
6926 | } | |||
6927 | ||||
6928 | static bfd_boolean | |||
6929 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |||
6930 | { | |||
6931 | ||||
6932 | /* Signal number at offset 0x08. */ | |||
6933 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal | |||
6934 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08)((*((abfd)->xvec->bfd_h_getx32)) ((bfd_byte *) note-> descdata + 0x08)); | |||
6935 | ||||
6936 | /* Process ID at offset 0x50. */ | |||
6937 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid | |||
6938 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50)((*((abfd)->xvec->bfd_h_getx32)) ((bfd_byte *) note-> descdata + 0x50)); | |||
6939 | ||||
6940 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |||
6941 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_command | |||
6942 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); | |||
6943 | ||||
6944 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", | |||
6945 | note); | |||
6946 | } | |||
6947 | ||||
6948 | static bfd_boolean | |||
6949 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) | |||
6950 | { | |||
6951 | int lwp; | |||
6952 | ||||
6953 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |||
6954 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = lwp; | |||
6955 | ||||
6956 | if (note->type == NT_NETBSDCORE_PROCINFO1) | |||
6957 | { | |||
6958 | /* NetBSD-specific core "procinfo". Note that we expect to | |||
6959 | find this note before any of the others, which is fine, | |||
6960 | since the kernel writes this note out first when it | |||
6961 | creates a core file. */ | |||
6962 | ||||
6963 | return elfcore_grok_netbsd_procinfo (abfd, note); | |||
6964 | } | |||
6965 | ||||
6966 | /* As of Jan 2002 there are no other machine-independent notes | |||
6967 | defined for NetBSD core files. If the note type is less | |||
6968 | than the start of the machine-dependent note types, we don't | |||
6969 | understand it. */ | |||
6970 | ||||
6971 | if (note->type < NT_NETBSDCORE_FIRSTMACH32) | |||
6972 | return TRUE1; | |||
6973 | ||||
6974 | ||||
6975 | switch (bfd_get_arch (abfd)) | |||
6976 | { | |||
6977 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and | |||
6978 | PT_GETFPREGS == mach+2. */ | |||
6979 | ||||
6980 | case bfd_arch_alpha: | |||
6981 | case bfd_arch_sparc: | |||
6982 | switch (note->type) | |||
6983 | { | |||
6984 | case NT_NETBSDCORE_FIRSTMACH32+0: | |||
6985 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |||
6986 | ||||
6987 | case NT_NETBSDCORE_FIRSTMACH32+2: | |||
6988 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |||
6989 | ||||
6990 | default: | |||
6991 | return TRUE1; | |||
6992 | } | |||
6993 | ||||
6994 | /* On all other arch's, PT_GETREGS == mach+1 and | |||
6995 | PT_GETFPREGS == mach+3. */ | |||
6996 | ||||
6997 | default: | |||
6998 | switch (note->type) | |||
6999 | { | |||
7000 | case NT_NETBSDCORE_FIRSTMACH32+1: | |||
7001 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |||
7002 | ||||
7003 | case NT_NETBSDCORE_FIRSTMACH32+3: | |||
7004 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |||
7005 | ||||
7006 | default: | |||
7007 | return TRUE1; | |||
7008 | } | |||
7009 | } | |||
7010 | /* NOTREACHED */ | |||
7011 | } | |||
7012 | ||||
7013 | static bfd_boolean | |||
7014 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |||
7015 | { | |||
7016 | /* Signal number at offset 0x08. */ | |||
7017 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal | |||
7018 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08)((*((abfd)->xvec->bfd_h_getx32)) ((bfd_byte *) note-> descdata + 0x08)); | |||
7019 | ||||
7020 | /* Process ID at offset 0x20. */ | |||
7021 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid | |||
7022 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20)((*((abfd)->xvec->bfd_h_getx32)) ((bfd_byte *) note-> descdata + 0x20)); | |||
7023 | ||||
7024 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |||
7025 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_command | |||
7026 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); | |||
7027 | ||||
7028 | return TRUE1; | |||
7029 | } | |||
7030 | ||||
7031 | static bfd_boolean | |||
7032 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |||
7033 | { | |||
7034 | int lwp; | |||
7035 | ||||
7036 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |||
7037 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = lwp; | |||
7038 | ||||
7039 | if (note->type == NT_OPENBSD_PROCINFO10) | |||
7040 | return elfcore_grok_openbsd_procinfo (abfd, note); | |||
7041 | ||||
7042 | if (note->type == NT_OPENBSD_REGS20) | |||
7043 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |||
7044 | ||||
7045 | if (note->type == NT_OPENBSD_FPREGS21) | |||
7046 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |||
7047 | ||||
7048 | if (note->type == NT_OPENBSD_XFPREGS22) | |||
7049 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |||
7050 | ||||
7051 | if (note->type == NT_OPENBSD_AUXV11) | |||
7052 | { | |||
7053 | asection *sect = bfd_make_section_anyway (abfd, ".auxv"); | |||
7054 | ||||
7055 | if (sect == NULL((void*)0)) | |||
7056 | return FALSE0; | |||
7057 | sect->_raw_size = note->descsz; | |||
7058 | sect->filepos = note->descpos; | |||
7059 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
7060 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |||
7061 | ||||
7062 | return TRUE1; | |||
7063 | } | |||
7064 | ||||
7065 | if (note->type == NT_OPENBSD_WCOOKIE23) | |||
7066 | { | |||
7067 | asection *sect = bfd_make_section_anyway (abfd, ".wcookie"); | |||
7068 | ||||
7069 | if (sect == NULL((void*)0)) | |||
7070 | return FALSE0; | |||
7071 | sect->_raw_size = note->descsz; | |||
7072 | sect->filepos = note->descpos; | |||
7073 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
7074 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |||
7075 | ||||
7076 | return TRUE1; | |||
7077 | } | |||
7078 | ||||
7079 | return TRUE1; | |||
7080 | } | |||
7081 | ||||
7082 | static bfd_boolean | |||
7083 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, pid_t *tid) | |||
7084 | { | |||
7085 | void *ddata = note->descdata; | |||
7086 | char buf[100]; | |||
7087 | char *name; | |||
7088 | asection *sect; | |||
7089 | short sig; | |||
7090 | unsigned flags; | |||
7091 | ||||
7092 | /* nto_procfs_status 'pid' field is at offset 0. */ | |||
7093 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_pid = bfd_get_32 (abfd, (bfd_byte *) ddata)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) ddata)); | |||
7094 | ||||
7095 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ | |||
7096 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) ddata + 4) ); | |||
7097 | ||||
7098 | /* nto_procfs_status 'flags' field is at offset 8. */ | |||
7099 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) ddata + 8) ); | |||
7100 | ||||
7101 | /* nto_procfs_status 'what' field is at offset 14. */ | |||
7102 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)((*((abfd)->xvec->bfd_getx16)) ((bfd_byte *) ddata + 14 ))) > 0) | |||
7103 | { | |||
7104 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_signal = sig; | |||
7105 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = *tid; | |||
7106 | } | |||
7107 | ||||
7108 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores | |||
7109 | do not come from signals so we make sure we set the current | |||
7110 | thread just in case. */ | |||
7111 | if (flags & 0x00000080) | |||
7112 | elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid = *tid; | |||
7113 | ||||
7114 | /* Make a ".qnx_core_status/%d" section. */ | |||
7115 | sprintf (buf, ".qnx_core_status/%d", *tid); | |||
7116 | ||||
7117 | name = bfd_alloc (abfd, strlen (buf) + 1); | |||
7118 | if (name == NULL((void*)0)) | |||
7119 | return FALSE0; | |||
7120 | strcpy (name, buf); | |||
7121 | ||||
7122 | sect = bfd_make_section_anyway (abfd, name); | |||
7123 | if (sect == NULL((void*)0)) | |||
7124 | return FALSE0; | |||
7125 | ||||
7126 | sect->_raw_size = note->descsz; | |||
7127 | sect->filepos = note->descpos; | |||
7128 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
7129 | sect->alignment_power = 2; | |||
7130 | ||||
7131 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |||
7132 | } | |||
7133 | ||||
7134 | static bfd_boolean | |||
7135 | elfcore_grok_nto_gregs (bfd *abfd, Elf_Internal_Note *note, pid_t tid) | |||
7136 | { | |||
7137 | char buf[100]; | |||
7138 | char *name; | |||
7139 | asection *sect; | |||
7140 | ||||
7141 | /* Make a ".reg/%d" section. */ | |||
7142 | sprintf (buf, ".reg/%d", tid); | |||
7143 | ||||
7144 | name = bfd_alloc (abfd, strlen (buf) + 1); | |||
7145 | if (name == NULL((void*)0)) | |||
7146 | return FALSE0; | |||
7147 | strcpy (name, buf); | |||
7148 | ||||
7149 | sect = bfd_make_section_anyway (abfd, name); | |||
7150 | if (sect == NULL((void*)0)) | |||
7151 | return FALSE0; | |||
7152 | ||||
7153 | sect->_raw_size = note->descsz; | |||
7154 | sect->filepos = note->descpos; | |||
7155 | sect->flags = SEC_HAS_CONTENTS0x200; | |||
7156 | sect->alignment_power = 2; | |||
7157 | ||||
7158 | /* This is the current thread. */ | |||
7159 | if (elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->core_lwpid == tid) | |||
7160 | return elfcore_maybe_make_sect (abfd, ".reg", sect); | |||
7161 | ||||
7162 | return TRUE1; | |||
7163 | } | |||
7164 | ||||
7165 | #define BFD_QNT_CORE_INFO7 7 | |||
7166 | #define BFD_QNT_CORE_STATUS8 8 | |||
7167 | #define BFD_QNT_CORE_GREG9 9 | |||
7168 | #define BFD_QNT_CORE_FPREG10 10 | |||
7169 | ||||
7170 | static bfd_boolean | |||
7171 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) | |||
7172 | { | |||
7173 | /* Every GREG section has a STATUS section before it. Store the | |||
7174 | tid from the previous call to pass down to the next gregs | |||
7175 | function. */ | |||
7176 | static pid_t tid = 1; | |||
7177 | ||||
7178 | switch (note->type) | |||
7179 | { | |||
7180 | case BFD_QNT_CORE_INFO7: return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |||
7181 | case BFD_QNT_CORE_STATUS8: return elfcore_grok_nto_status (abfd, note, &tid); | |||
7182 | case BFD_QNT_CORE_GREG9: return elfcore_grok_nto_gregs (abfd, note, tid); | |||
7183 | case BFD_QNT_CORE_FPREG10: return elfcore_grok_prfpreg (abfd, note); | |||
7184 | default: return TRUE1; | |||
7185 | } | |||
7186 | } | |||
7187 | ||||
7188 | /* Function: elfcore_write_note | |||
7189 | ||||
7190 | Inputs: | |||
7191 | buffer to hold note | |||
7192 | name of note | |||
7193 | type of note | |||
7194 | data for note | |||
7195 | size of data for note | |||
7196 | ||||
7197 | Return: | |||
7198 | End of buffer containing note. */ | |||
7199 | ||||
7200 | char * | |||
7201 | elfcore_write_note (bfd *abfd, | |||
7202 | char *buf, | |||
7203 | int *bufsiz, | |||
7204 | const char *name, | |||
7205 | int type, | |||
7206 | const void *input, | |||
7207 | int size) | |||
7208 | { | |||
7209 | Elf_External_Note *xnp; | |||
7210 | size_t namesz; | |||
7211 | size_t pad; | |||
7212 | size_t newspace; | |||
7213 | char *p, *dest; | |||
7214 | ||||
7215 | namesz = 0; | |||
7216 | pad = 0; | |||
7217 | if (name != NULL((void*)0)) | |||
7218 | { | |||
7219 | const struct elf_backend_data *bed; | |||
7220 | ||||
7221 | namesz = strlen (name) + 1; | |||
7222 | bed = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data ); | |||
7223 | pad = -namesz & ((1 << bed->s->log_file_align) - 1); | |||
7224 | } | |||
7225 | ||||
7226 | newspace = 12 + namesz + pad + size; | |||
7227 | ||||
7228 | p = realloc (buf, *bufsiz + newspace); | |||
7229 | dest = p + *bufsiz; | |||
7230 | *bufsiz += newspace; | |||
7231 | xnp = (Elf_External_Note *) dest; | |||
7232 | H_PUT_32 (abfd, namesz, xnp->namesz)((*((abfd)->xvec->bfd_h_putx32)) (namesz, xnp->namesz )); | |||
7233 | H_PUT_32 (abfd, size, xnp->descsz)((*((abfd)->xvec->bfd_h_putx32)) (size, xnp->descsz) ); | |||
7234 | H_PUT_32 (abfd, type, xnp->type)((*((abfd)->xvec->bfd_h_putx32)) (type, xnp->type)); | |||
7235 | dest = xnp->name; | |||
7236 | if (name != NULL((void*)0)) | |||
7237 | { | |||
7238 | memcpy (dest, name, namesz); | |||
7239 | dest += namesz; | |||
7240 | while (pad != 0) | |||
7241 | { | |||
7242 | *dest++ = '\0'; | |||
7243 | --pad; | |||
7244 | } | |||
7245 | } | |||
7246 | memcpy (dest, input, size); | |||
7247 | return p; | |||
7248 | } | |||
7249 | ||||
7250 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) | |||
7251 | char * | |||
7252 | elfcore_write_prpsinfo (bfd *abfd, | |||
7253 | char *buf, | |||
7254 | int *bufsiz, | |||
7255 | const char *fname, | |||
7256 | const char *psargs) | |||
7257 | { | |||
7258 | int note_type; | |||
7259 | char *note_name = "CORE"; | |||
7260 | ||||
7261 | #if defined (HAVE_PSINFO_T) | |||
7262 | psinfo_t data; | |||
7263 | note_type = NT_PSINFO13; | |||
7264 | #else | |||
7265 | prpsinfo_t data; | |||
7266 | note_type = NT_PRPSINFO3; | |||
7267 | #endif | |||
7268 | ||||
7269 | memset (&data, 0, sizeof (data)); | |||
7270 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |||
7271 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |||
7272 | return elfcore_write_note (abfd, buf, bufsiz, | |||
7273 | note_name, note_type, &data, sizeof (data)); | |||
7274 | } | |||
7275 | #endif /* PSINFO_T or PRPSINFO_T */ | |||
7276 | ||||
7277 | #if defined (HAVE_PRSTATUS_T) | |||
7278 | char * | |||
7279 | elfcore_write_prstatus (bfd *abfd, | |||
7280 | char *buf, | |||
7281 | int *bufsiz, | |||
7282 | long pid, | |||
7283 | int cursig, | |||
7284 | const void *gregs) | |||
7285 | { | |||
7286 | prstatus_t prstat; | |||
7287 | char *note_name = "CORE"; | |||
7288 | ||||
7289 | memset (&prstat, 0, sizeof (prstat)); | |||
7290 | prstat.pr_pid = pid; | |||
7291 | prstat.pr_cursig = cursig; | |||
7292 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |||
7293 | return elfcore_write_note (abfd, buf, bufsiz, | |||
7294 | note_name, NT_PRSTATUS1, &prstat, sizeof (prstat)); | |||
7295 | } | |||
7296 | #endif /* HAVE_PRSTATUS_T */ | |||
7297 | ||||
7298 | #if defined (HAVE_LWPSTATUS_T) | |||
7299 | char * | |||
7300 | elfcore_write_lwpstatus (bfd *abfd, | |||
7301 | char *buf, | |||
7302 | int *bufsiz, | |||
7303 | long pid, | |||
7304 | int cursig, | |||
7305 | const void *gregs) | |||
7306 | { | |||
7307 | lwpstatus_t lwpstat; | |||
7308 | char *note_name = "CORE"; | |||
7309 | ||||
7310 | memset (&lwpstat, 0, sizeof (lwpstat)); | |||
7311 | lwpstat.pr_lwpid = pid >> 16; | |||
7312 | lwpstat.pr_cursig = cursig; | |||
7313 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |||
7314 | memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); | |||
7315 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |||
7316 | #if !defined(gregs) | |||
7317 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |||
7318 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |||
7319 | #else | |||
7320 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |||
7321 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |||
7322 | #endif | |||
7323 | #endif | |||
7324 | return elfcore_write_note (abfd, buf, bufsiz, note_name, | |||
7325 | NT_LWPSTATUS16, &lwpstat, sizeof (lwpstat)); | |||
7326 | } | |||
7327 | #endif /* HAVE_LWPSTATUS_T */ | |||
7328 | ||||
7329 | #if defined (HAVE_PSTATUS_T) | |||
7330 | char * | |||
7331 | elfcore_write_pstatus (bfd *abfd, | |||
7332 | char *buf, | |||
7333 | int *bufsiz, | |||
7334 | long pid, | |||
7335 | int cursig, | |||
7336 | const void *gregs) | |||
7337 | { | |||
7338 | pstatus_t pstat; | |||
7339 | char *note_name = "CORE"; | |||
7340 | ||||
7341 | memset (&pstat, 0, sizeof (pstat)); | |||
7342 | pstat.pr_pid = pid & 0xffff; | |||
7343 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |||
7344 | NT_PSTATUS10, &pstat, sizeof (pstat)); | |||
7345 | return buf; | |||
7346 | } | |||
7347 | #endif /* HAVE_PSTATUS_T */ | |||
7348 | ||||
7349 | char * | |||
7350 | elfcore_write_prfpreg (bfd *abfd, | |||
7351 | char *buf, | |||
7352 | int *bufsiz, | |||
7353 | const void *fpregs, | |||
7354 | int size) | |||
7355 | { | |||
7356 | char *note_name = "CORE"; | |||
7357 | return elfcore_write_note (abfd, buf, bufsiz, | |||
7358 | note_name, NT_FPREGSET2, fpregs, size); | |||
7359 | } | |||
7360 | ||||
7361 | char * | |||
7362 | elfcore_write_prxfpreg (bfd *abfd, | |||
7363 | char *buf, | |||
7364 | int *bufsiz, | |||
7365 | const void *xfpregs, | |||
7366 | int size) | |||
7367 | { | |||
7368 | char *note_name = "LINUX"; | |||
7369 | return elfcore_write_note (abfd, buf, bufsiz, | |||
7370 | note_name, NT_PRXFPREG0x46e62b7f, xfpregs, size); | |||
7371 | } | |||
7372 | ||||
7373 | static bfd_boolean | |||
7374 | elfcore_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size) | |||
7375 | { | |||
7376 | char *buf; | |||
7377 | char *p; | |||
7378 | ||||
7379 | if (size <= 0) | |||
7380 | return TRUE1; | |||
7381 | ||||
7382 | if (bfd_seek (abfd, offset, SEEK_SET0) != 0) | |||
7383 | return FALSE0; | |||
7384 | ||||
7385 | buf = bfd_malloc (size); | |||
7386 | if (buf == NULL((void*)0)) | |||
7387 | return FALSE0; | |||
7388 | ||||
7389 | if (bfd_bread (buf, size, abfd) != size) | |||
7390 | { | |||
7391 | error: | |||
7392 | free (buf); | |||
7393 | return FALSE0; | |||
7394 | } | |||
7395 | ||||
7396 | p = buf; | |||
7397 | while (p < buf + size) | |||
7398 | { | |||
7399 | /* FIXME: bad alignment assumption. */ | |||
7400 | Elf_External_Note *xnp = (Elf_External_Note *) p; | |||
7401 | Elf_Internal_Note in; | |||
7402 | ||||
7403 | in.type = H_GET_32 (abfd, xnp->type)((*((abfd)->xvec->bfd_h_getx32)) (xnp->type)); | |||
7404 | ||||
7405 | in.namesz = H_GET_32 (abfd, xnp->namesz)((*((abfd)->xvec->bfd_h_getx32)) (xnp->namesz)); | |||
7406 | in.namedata = xnp->name; | |||
7407 | ||||
7408 | in.descsz = H_GET_32 (abfd, xnp->descsz)((*((abfd)->xvec->bfd_h_getx32)) (xnp->descsz)); | |||
7409 | in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4)((((bfd_vma) (in.namesz) + (4) - 1) >= (bfd_vma) (in.namesz )) ? (((bfd_vma) (in.namesz) + ((4) - 1)) & ~ (bfd_vma) ( (4)-1)) : ~ (bfd_vma) 0); | |||
7410 | in.descpos = offset + (in.descdata - buf); | |||
7411 | ||||
7412 | if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0) | |||
7413 | { | |||
7414 | if (! elfcore_grok_netbsd_note (abfd, &in)) | |||
7415 | goto error; | |||
7416 | } | |||
7417 | if (strncmp (in.namedata, "OpenBSD", 7) == 0) | |||
7418 | { | |||
7419 | if (! elfcore_grok_openbsd_note (abfd, &in)) | |||
7420 | goto error; | |||
7421 | } | |||
7422 | else if (strncmp (in.namedata, "QNX", 3) == 0) | |||
7423 | { | |||
7424 | if (! elfcore_grok_nto_note (abfd, &in)) | |||
7425 | goto error; | |||
7426 | } | |||
7427 | else | |||
7428 | { | |||
7429 | if (! elfcore_grok_note (abfd, &in)) | |||
7430 | goto error; | |||
7431 | } | |||
7432 | ||||
7433 | p = in.descdata + BFD_ALIGN (in.descsz, 4)((((bfd_vma) (in.descsz) + (4) - 1) >= (bfd_vma) (in.descsz )) ? (((bfd_vma) (in.descsz) + ((4) - 1)) & ~ (bfd_vma) ( (4)-1)) : ~ (bfd_vma) 0); | |||
7434 | } | |||
7435 | ||||
7436 | free (buf); | |||
7437 | return TRUE1; | |||
7438 | } | |||
7439 | ||||
7440 | /* Providing external access to the ELF program header table. */ | |||
7441 | ||||
7442 | /* Return an upper bound on the number of bytes required to store a | |||
7443 | copy of ABFD's program header table entries. Return -1 if an error | |||
7444 | occurs; bfd_get_error will return an appropriate code. */ | |||
7445 | ||||
7446 | long | |||
7447 | bfd_get_elf_phdr_upper_bound (bfd *abfd) | |||
7448 | { | |||
7449 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |||
7450 | { | |||
7451 | bfd_set_error (bfd_error_wrong_format); | |||
7452 | return -1; | |||
7453 | } | |||
7454 | ||||
7455 | return elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum * sizeof (Elf_Internal_Phdr); | |||
7456 | } | |||
7457 | ||||
7458 | /* Copy ABFD's program header table entries to *PHDRS. The entries | |||
7459 | will be stored as an array of Elf_Internal_Phdr structures, as | |||
7460 | defined in include/elf/internal.h. To find out how large the | |||
7461 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |||
7462 | ||||
7463 | Return the number of program header table entries read, or -1 if an | |||
7464 | error occurs; bfd_get_error will return an appropriate code. */ | |||
7465 | ||||
7466 | int | |||
7467 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) | |||
7468 | { | |||
7469 | int num_phdrs; | |||
7470 | ||||
7471 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |||
7472 | { | |||
7473 | bfd_set_error (bfd_error_wrong_format); | |||
7474 | return -1; | |||
7475 | } | |||
7476 | ||||
7477 | num_phdrs = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_phnum; | |||
7478 | memcpy (phdrs, elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->phdr, | |||
7479 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |||
7480 | ||||
7481 | return num_phdrs; | |||
7482 | } | |||
7483 | ||||
7484 | void | |||
7485 | _bfd_elf_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), char *buf, bfd_vma value) | |||
7486 | { | |||
7487 | #ifdef BFD64 | |||
7488 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |||
7489 | ||||
7490 | i_ehdrp = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header); | |||
7491 | if (i_ehdrp == NULL((void*)0)) | |||
7492 | sprintf_vma (buf, value)sprintf (buf, "%016lx", value); | |||
7493 | else | |||
7494 | { | |||
7495 | if (i_ehdrp->e_ident[EI_CLASS4] == ELFCLASS642) | |||
7496 | { | |||
7497 | #if BFD_HOST_64BIT_LONG1 | |||
7498 | sprintf (buf, "%016lx", value); | |||
7499 | #else | |||
7500 | sprintf (buf, "%08lx%08lx", _bfd_int64_high (value), | |||
7501 | _bfd_int64_low (value)); | |||
7502 | #endif | |||
7503 | } | |||
7504 | else | |||
7505 | sprintf (buf, "%08lx", (unsigned long) (value & 0xffffffff)); | |||
7506 | } | |||
7507 | #else | |||
7508 | sprintf_vma (buf, value)sprintf (buf, "%016lx", value); | |||
7509 | #endif | |||
7510 | } | |||
7511 | ||||
7512 | void | |||
7513 | _bfd_elf_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), void *stream, bfd_vma value) | |||
7514 | { | |||
7515 | #ifdef BFD64 | |||
7516 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |||
7517 | ||||
7518 | i_ehdrp = elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header); | |||
7519 | if (i_ehdrp == NULL((void*)0)) | |||
7520 | fprintf_vma ((FILE *) stream, value)fprintf ((FILE *) stream, "%016lx", value); | |||
7521 | else | |||
7522 | { | |||
7523 | if (i_ehdrp->e_ident[EI_CLASS4] == ELFCLASS642) | |||
7524 | { | |||
7525 | #if BFD_HOST_64BIT_LONG1 | |||
7526 | fprintf ((FILE *) stream, "%016lx", value); | |||
7527 | #else | |||
7528 | fprintf ((FILE *) stream, "%08lx%08lx", | |||
7529 | _bfd_int64_high (value), _bfd_int64_low (value)); | |||
7530 | #endif | |||
7531 | } | |||
7532 | else | |||
7533 | fprintf ((FILE *) stream, "%08lx", | |||
7534 | (unsigned long) (value & 0xffffffff)); | |||
7535 | } | |||
7536 | #else | |||
7537 | fprintf_vma ((FILE *) stream, value)fprintf ((FILE *) stream, "%016lx", value); | |||
7538 | #endif | |||
7539 | } | |||
7540 | ||||
7541 | enum elf_reloc_type_class | |||
7542 | _bfd_elf_reloc_type_class (const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | |||
7543 | { | |||
7544 | return reloc_class_normal; | |||
7545 | } | |||
7546 | ||||
7547 | /* For RELA architectures, return the relocation value for a | |||
7548 | relocation against a local symbol. */ | |||
7549 | ||||
7550 | bfd_vma | |||
7551 | _bfd_elf_rela_local_sym (bfd *abfd, | |||
7552 | Elf_Internal_Sym *sym, | |||
7553 | asection **psec, | |||
7554 | Elf_Internal_Rela *rel) | |||
7555 | { | |||
7556 | asection *sec = *psec; | |||
7557 | bfd_vma relocation; | |||
7558 | ||||
7559 | relocation = (sec->output_section->vma | |||
7560 | + sec->output_offset | |||
7561 | + sym->st_value); | |||
7562 | if ((sec->flags & SEC_MERGE0x20000000) | |||
7563 | && ELF_ST_TYPE (sym->st_info)((sym->st_info) & 0xF) == STT_SECTION3 | |||
7564 | && sec->sec_info_type == ELF_INFO_TYPE_MERGE2) | |||
7565 | { | |||
7566 | rel->r_addend = | |||
7567 | _bfd_merged_section_offset (abfd, psec, | |||
7568 | elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd)->sec_info, | |||
7569 | sym->st_value + rel->r_addend, | |||
7570 | 0); | |||
7571 | sec = *psec; | |||
7572 | rel->r_addend -= relocation; | |||
7573 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |||
7574 | } | |||
7575 | return relocation; | |||
7576 | } | |||
7577 | ||||
7578 | bfd_vma | |||
7579 | _bfd_elf_rel_local_sym (bfd *abfd, | |||
7580 | Elf_Internal_Sym *sym, | |||
7581 | asection **psec, | |||
7582 | bfd_vma addend) | |||
7583 | { | |||
7584 | asection *sec = *psec; | |||
7585 | ||||
7586 | if (sec->sec_info_type != ELF_INFO_TYPE_MERGE2) | |||
7587 | return sym->st_value + addend; | |||
7588 | ||||
7589 | return _bfd_merged_section_offset (abfd, psec, | |||
7590 | elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd)->sec_info, | |||
7591 | sym->st_value + addend, 0); | |||
7592 | } | |||
7593 | ||||
7594 | bfd_vma | |||
7595 | _bfd_elf_section_offset (bfd *abfd, | |||
7596 | struct bfd_link_info *info, | |||
7597 | asection *sec, | |||
7598 | bfd_vma offset) | |||
7599 | { | |||
7600 | struct bfd_elf_section_data *sec_data; | |||
7601 | ||||
7602 | sec_data = elf_section_data (sec)((struct bfd_elf_section_data*)sec->used_by_bfd); | |||
7603 | switch (sec->sec_info_type) | |||
7604 | { | |||
7605 | case ELF_INFO_TYPE_STABS1: | |||
7606 | return _bfd_stab_section_offset (abfd, | |||
7607 | &elf_hash_table (info)((struct elf_link_hash_table *) ((info)->hash))->merge_info, | |||
7608 | sec, &sec_data->sec_info, offset); | |||
7609 | case ELF_INFO_TYPE_EH_FRAME3: | |||
7610 | return _bfd_elf_eh_frame_section_offset (abfd, sec, offset); | |||
7611 | default: | |||
7612 | return offset; | |||
7613 | } | |||
7614 | } | |||
7615 | ||||
7616 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |||
7617 | reconstruct an ELF file by reading the segments out of remote memory | |||
7618 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |||
7619 | points to. If not null, *LOADBASEP is filled in with the difference | |||
7620 | between the VMAs from which the segments were read, and the VMAs the | |||
7621 | file headers (and hence BFD's idea of each section's VMA) put them at. | |||
7622 | ||||
7623 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |||
7624 | remote memory at target address VMA into the local buffer at MYADDR; it | |||
7625 | should return zero on success or an `errno' code on failure. TEMPL must | |||
7626 | be a BFD for an ELF target with the word size and byte order found in | |||
7627 | the remote memory. */ | |||
7628 | ||||
7629 | bfd * | |||
7630 | bfd_elf_bfd_from_remote_memory | |||
7631 | (bfd *templ, | |||
7632 | bfd_vma ehdr_vma, | |||
7633 | bfd_vma *loadbasep, | |||
7634 | int (*target_read_memory) (bfd_vma, char *, int)) | |||
7635 | { | |||
7636 | return (*get_elf_backend_data (templ)((const struct elf_backend_data *) (templ)->xvec->backend_data )->elf_backend_bfd_from_remote_memory) | |||
7637 | (templ, ehdr_vma, loadbasep, target_read_memory); | |||
7638 | } |