Commit | Line | Data |
---|---|---|
3af9a47b | 1 | /* Mach-O support for BFD. |
7e3102a7 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
3af9a47b NC |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a95a4550 | 18 | along with this program; if not, write to the Free Software |
3e110533 | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
3af9a47b NC |
20 | |
21 | #include "mach-o.h" | |
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | #include "libiberty.h" | |
26 | #include <ctype.h> | |
27 | ||
28 | #ifndef BFD_IO_FUNCS | |
29 | #define BFD_IO_FUNCS 0 | |
30 | #endif | |
31 | ||
116c20d2 NC |
32 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
33 | #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr | |
34 | #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap | |
35 | #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table | |
36 | #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table | |
37 | #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname | |
38 | #define bfd_mach_o_write_armap _bfd_noarchive_write_armap | |
39 | #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index | |
40 | #define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt | |
41 | #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp | |
42 | #define bfd_mach_o_close_and_cleanup _bfd_generic_close_and_cleanup | |
43 | #define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
44 | #define bfd_mach_o_new_section_hook _bfd_generic_new_section_hook | |
45 | #define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window | |
46 | #define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name | |
47 | #define bfd_mach_o_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) | |
48 | #define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name | |
49 | #define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno | |
50 | #define bfd_mach_o_find_nearest_line _bfd_nosymbols_find_nearest_line | |
51 | #define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | |
52 | #define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols | |
53 | #define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
54 | #define bfd_mach_o_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound | |
55 | #define bfd_mach_o_canonicalize_reloc _bfd_norelocs_canonicalize_reloc | |
56 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3af9a47b | 57 | #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
116c20d2 NC |
58 | #define bfd_mach_o_bfd_relax_section bfd_generic_relax_section |
59 | #define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
60 | #define bfd_mach_o_bfd_link_hash_table_free _bfd_generic_link_hash_table_free | |
61 | #define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
62 | #define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms | |
63 | #define bfd_mach_o_bfd_final_link _bfd_generic_final_link | |
64 | #define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section | |
65 | #define bfd_mach_o_set_arch_mach bfd_default_set_arch_mach | |
66 | #define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
67 | #define bfd_mach_o_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
68 | #define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
69 | #define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents | |
70 | #define bfd_mach_o_set_section_contents _bfd_generic_set_section_contents | |
71 | #define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections | |
72 | #define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections | |
73 | #define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section | |
74 | #define bfd_mach_o_bfd_discard_group bfd_generic_discard_group | |
75 | #define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked | |
76 | #define bfd_mach_o_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data | |
77 | ||
3af9a47b NC |
78 | |
79 | /* The flags field of a section structure is separated into two parts a section | |
80 | type and section attributes. The section types are mutually exclusive (it | |
81 | can only have one type) but the section attributes are not (it may have more | |
82 | than one attribute). */ | |
83 | ||
84 | #define SECTION_TYPE 0x000000ff /* 256 section types. */ | |
85 | #define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */ | |
86 | ||
87 | /* Constants for the section attributes part of the flags field of a section | |
88 | structure. */ | |
89 | ||
90 | #define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */ | |
91 | #define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */ | |
92 | #define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */ | |
93 | #define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */ | |
94 | #define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */ | |
95 | #define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */ | |
96 | ||
97 | #define N_STAB 0xe0 | |
98 | #define N_TYPE 0x1e | |
99 | #define N_EXT 0x01 | |
100 | #define N_UNDF 0x0 | |
101 | #define N_ABS 0x2 | |
102 | #define N_SECT 0xe | |
103 | #define N_INDR 0xa | |
104 | ||
b34976b6 | 105 | bfd_boolean |
116c20d2 | 106 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
107 | { |
108 | if (abfd == NULL || abfd->xvec == NULL) | |
109 | return 0; | |
110 | ||
111 | if (! ((abfd->xvec == &mach_o_be_vec) | |
112 | || (abfd->xvec == &mach_o_le_vec) | |
113 | || (abfd->xvec == &mach_o_fat_vec))) | |
114 | return 0; | |
115 | ||
116 | if (abfd->tdata.mach_o_data == NULL) | |
117 | return 0; | |
118 | return 1; | |
119 | } | |
120 | ||
121 | /* Copy any private info we understand from the input symbol | |
122 | to the output symbol. */ | |
123 | ||
b34976b6 | 124 | static bfd_boolean |
116c20d2 NC |
125 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
126 | asymbol *isymbol ATTRIBUTE_UNUSED, | |
127 | bfd *obfd ATTRIBUTE_UNUSED, | |
128 | asymbol *osymbol ATTRIBUTE_UNUSED) | |
3af9a47b | 129 | { |
b34976b6 | 130 | return TRUE; |
3af9a47b NC |
131 | } |
132 | ||
133 | /* Copy any private info we understand from the input section | |
134 | to the output section. */ | |
135 | ||
b34976b6 | 136 | static bfd_boolean |
116c20d2 NC |
137 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
138 | asection *isection ATTRIBUTE_UNUSED, | |
139 | bfd *obfd ATTRIBUTE_UNUSED, | |
140 | asection *osection ATTRIBUTE_UNUSED) | |
3af9a47b | 141 | { |
b34976b6 | 142 | return TRUE; |
3af9a47b NC |
143 | } |
144 | ||
145 | /* Copy any private info we understand from the input bfd | |
146 | to the output bfd. */ | |
147 | ||
b34976b6 | 148 | static bfd_boolean |
116c20d2 | 149 | bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3af9a47b NC |
150 | { |
151 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); | |
152 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
153 | ||
154 | obfd->tdata.mach_o_data = ibfd->tdata.mach_o_data; | |
155 | obfd->tdata.mach_o_data->ibfd = ibfd; | |
b34976b6 | 156 | return TRUE; |
3af9a47b NC |
157 | } |
158 | ||
159 | static long | |
116c20d2 | 160 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b NC |
161 | { |
162 | bfd_mach_o_data_struct *mdata = NULL; | |
163 | long nsyms = 0; | |
164 | unsigned long i; | |
a95a4550 | 165 | |
3af9a47b NC |
166 | BFD_ASSERT (bfd_mach_o_valid (abfd)); |
167 | mdata = abfd->tdata.mach_o_data; | |
168 | ||
169 | for (i = 0; i < mdata->header.ncmds; i++) | |
170 | if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) | |
171 | { | |
172 | bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; | |
173 | nsyms += sym->nsyms; | |
174 | } | |
175 | ||
176 | return nsyms; | |
177 | } | |
178 | ||
179 | static long | |
116c20d2 | 180 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
181 | { |
182 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
183 | ||
184 | if (nsyms < 0) | |
185 | return nsyms; | |
186 | ||
187 | return ((nsyms + 1) * sizeof (asymbol *)); | |
188 | } | |
189 | ||
190 | static long | |
116c20d2 | 191 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b NC |
192 | { |
193 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
194 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
195 | asymbol **csym = alocation; | |
196 | unsigned long i, j; | |
197 | ||
198 | if (nsyms < 0) | |
199 | return nsyms; | |
200 | ||
201 | for (i = 0; i < mdata->header.ncmds; i++) | |
202 | { | |
203 | if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) | |
204 | { | |
205 | bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; | |
206 | ||
207 | if (bfd_mach_o_scan_read_symtab_symbols (abfd, &mdata->commands[i].command.symtab) != 0) | |
208 | { | |
6cee3f79 | 209 | fprintf (stderr, "bfd_mach_o_canonicalize_symtab: unable to load symbols for section %lu\n", i); |
3af9a47b NC |
210 | return 0; |
211 | } | |
212 | ||
213 | BFD_ASSERT (sym->symbols != NULL); | |
214 | ||
215 | for (j = 0; j < sym->nsyms; j++) | |
216 | { | |
217 | BFD_ASSERT (csym < (alocation + nsyms)); | |
218 | *csym++ = &sym->symbols[j]; | |
219 | } | |
220 | } | |
221 | } | |
222 | ||
223 | *csym++ = NULL; | |
a95a4550 | 224 | |
3af9a47b NC |
225 | return nsyms; |
226 | } | |
227 | ||
228 | static void | |
116c20d2 NC |
229 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
230 | asymbol *symbol, | |
231 | symbol_info *ret) | |
3af9a47b NC |
232 | { |
233 | bfd_symbol_info (symbol, ret); | |
234 | } | |
235 | ||
236 | static void | |
116c20d2 NC |
237 | bfd_mach_o_print_symbol (bfd *abfd, |
238 | PTR afile, | |
239 | asymbol *symbol, | |
240 | bfd_print_symbol_type how) | |
3af9a47b NC |
241 | { |
242 | FILE *file = (FILE *) afile; | |
243 | ||
244 | switch (how) | |
245 | { | |
246 | case bfd_print_symbol_name: | |
247 | fprintf (file, "%s", symbol->name); | |
248 | break; | |
249 | default: | |
250 | bfd_print_symbol_vandf (abfd, (PTR) file, symbol); | |
251 | fprintf (file, " %-5s %s", symbol->section->name, symbol->name); | |
252 | } | |
253 | } | |
254 | ||
255 | static void | |
116c20d2 NC |
256 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
257 | bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED, | |
258 | enum bfd_architecture *type, | |
259 | unsigned long *subtype) | |
3af9a47b NC |
260 | { |
261 | *subtype = bfd_arch_unknown; | |
262 | ||
263 | switch (mtype) | |
264 | { | |
265 | case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break; | |
266 | case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break; | |
267 | case BFD_MACH_O_CPU_TYPE_I386: *type = bfd_arch_i386; break; | |
268 | case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break; | |
269 | case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break; | |
270 | case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break; | |
271 | case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break; | |
272 | case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break; | |
273 | case BFD_MACH_O_CPU_TYPE_SPARC: *type = bfd_arch_sparc; break; | |
274 | case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break; | |
275 | case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break; | |
276 | case BFD_MACH_O_CPU_TYPE_POWERPC: *type = bfd_arch_powerpc; break; | |
277 | default: *type = bfd_arch_unknown; break; | |
278 | } | |
279 | ||
280 | switch (*type) | |
281 | { | |
282 | case bfd_arch_i386: *subtype = bfd_mach_i386_i386; break; | |
283 | case bfd_arch_sparc: *subtype = bfd_mach_sparc; break; | |
284 | default: | |
285 | *subtype = bfd_arch_unknown; | |
286 | } | |
287 | } | |
a95a4550 | 288 | |
116c20d2 NC |
289 | static int |
290 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) | |
291 | { | |
292 | unsigned char buf[28]; | |
293 | ||
294 | bfd_h_put_32 (abfd, header->magic, buf + 0); | |
295 | bfd_h_put_32 (abfd, header->cputype, buf + 4); | |
296 | bfd_h_put_32 (abfd, header->cpusubtype, buf + 8); | |
297 | bfd_h_put_32 (abfd, header->filetype, buf + 12); | |
298 | bfd_h_put_32 (abfd, header->ncmds, buf + 16); | |
299 | bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20); | |
300 | bfd_h_put_32 (abfd, header->flags, buf + 24); | |
301 | ||
302 | bfd_seek (abfd, 0, SEEK_SET); | |
303 | if (bfd_bwrite ((PTR) buf, 28, abfd) != 28) | |
304 | return -1; | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | static int | |
310 | bfd_mach_o_scan_write_thread (bfd *abfd, | |
311 | bfd_mach_o_load_command *command) | |
312 | { | |
313 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
314 | unsigned int i; | |
315 | unsigned char buf[8]; | |
316 | bfd_vma offset; | |
317 | unsigned int nflavours; | |
318 | ||
319 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
320 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
321 | ||
322 | offset = 8; | |
323 | nflavours = 0; | |
324 | for (i = 0; i < cmd->nflavours; i++) | |
325 | { | |
326 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
327 | BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8)); | |
328 | ||
329 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf); | |
330 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4); | |
331 | ||
332 | bfd_seek (abfd, command->offset + offset, SEEK_SET); | |
333 | if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) | |
334 | return -1; | |
335 | ||
336 | offset += cmd->flavours[i].size + 8; | |
337 | } | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | static int | |
343 | bfd_mach_o_scan_write_section (bfd *abfd, | |
344 | bfd_mach_o_section *section, | |
345 | bfd_vma offset) | |
346 | { | |
347 | unsigned char buf[68]; | |
348 | ||
349 | memcpy (buf, section->sectname, 16); | |
350 | memcpy (buf + 16, section->segname, 16); | |
351 | bfd_h_put_32 (abfd, section->addr, buf + 32); | |
352 | bfd_h_put_32 (abfd, section->size, buf + 36); | |
353 | bfd_h_put_32 (abfd, section->offset, buf + 40); | |
354 | bfd_h_put_32 (abfd, section->align, buf + 44); | |
355 | bfd_h_put_32 (abfd, section->reloff, buf + 48); | |
356 | bfd_h_put_32 (abfd, section->nreloc, buf + 52); | |
357 | bfd_h_put_32 (abfd, section->flags, buf + 56); | |
358 | /* bfd_h_put_32 (abfd, section->reserved1, buf + 60); */ | |
359 | /* bfd_h_put_32 (abfd, section->reserved2, buf + 64); */ | |
360 | ||
361 | bfd_seek (abfd, offset, SEEK_SET); | |
362 | if (bfd_bwrite ((PTR) buf, 68, abfd) != 68) | |
363 | return -1; | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
368 | static int | |
369 | bfd_mach_o_scan_write_segment (bfd *abfd, bfd_mach_o_load_command *command) | |
370 | { | |
371 | unsigned char buf[48]; | |
372 | bfd_mach_o_segment_command *seg = &command->command.segment; | |
373 | unsigned long i; | |
374 | ||
375 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); | |
376 | ||
377 | memcpy (buf, seg->segname, 16); | |
378 | bfd_h_put_32 (abfd, seg->vmaddr, buf + 16); | |
379 | bfd_h_put_32 (abfd, seg->vmsize, buf + 20); | |
380 | bfd_h_put_32 (abfd, seg->fileoff, buf + 24); | |
381 | bfd_h_put_32 (abfd, seg->filesize, buf + 28); | |
382 | bfd_h_put_32 (abfd, 0 /* seg->maxprot */, buf + 32); | |
383 | bfd_h_put_32 (abfd, 0 /* seg->initprot */, buf + 36); | |
384 | bfd_h_put_32 (abfd, seg->nsects, buf + 40); | |
385 | bfd_h_put_32 (abfd, seg->flags, buf + 44); | |
386 | ||
387 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
388 | if (bfd_bwrite ((PTR) buf, 48, abfd) != 48) | |
389 | return -1; | |
390 | ||
391 | { | |
392 | char buf[1024]; | |
393 | bfd_vma nbytes = seg->filesize; | |
394 | bfd_vma curoff = seg->fileoff; | |
395 | ||
396 | while (nbytes > 0) | |
397 | { | |
398 | bfd_vma thisread = nbytes; | |
399 | ||
400 | if (thisread > 1024) | |
401 | thisread = 1024; | |
402 | ||
403 | bfd_seek (abfd, curoff, SEEK_SET); | |
404 | if (bfd_bread ((PTR) buf, thisread, abfd) != thisread) | |
405 | return -1; | |
406 | ||
407 | bfd_seek (abfd, curoff, SEEK_SET); | |
408 | if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread) | |
409 | return -1; | |
410 | ||
411 | nbytes -= thisread; | |
412 | curoff += thisread; | |
413 | } | |
414 | } | |
415 | ||
416 | for (i = 0; i < seg->nsects; i++) | |
417 | { | |
418 | bfd_vma segoff = command->offset + 48 + 8 + (i * 68); | |
419 | ||
420 | if (bfd_mach_o_scan_write_section (abfd, &seg->sections[i], segoff) != 0) | |
421 | return -1; | |
422 | } | |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
427 | static int | |
428 | bfd_mach_o_scan_write_symtab_symbols (bfd *abfd, | |
429 | bfd_mach_o_load_command *command) | |
430 | { | |
431 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
432 | asymbol *s = NULL; | |
433 | unsigned long i; | |
434 | ||
435 | for (i = 0; i < sym->nsyms; i++) | |
436 | { | |
437 | unsigned char buf[12]; | |
438 | bfd_vma symoff = sym->symoff + (i * 12); | |
439 | unsigned char ntype = 0; | |
440 | unsigned char nsect = 0; | |
441 | short ndesc = 0; | |
442 | ||
443 | s = &sym->symbols[i]; | |
444 | ||
445 | /* Instead just set from the stored values. */ | |
446 | ntype = (s->udata.i >> 24) & 0xff; | |
447 | nsect = (s->udata.i >> 16) & 0xff; | |
448 | ndesc = s->udata.i & 0xffff; | |
449 | ||
450 | bfd_h_put_32 (abfd, s->name - sym->strtab, buf); | |
451 | bfd_h_put_8 (abfd, ntype, buf + 4); | |
452 | bfd_h_put_8 (abfd, nsect, buf + 5); | |
453 | bfd_h_put_16 (abfd, ndesc, buf + 6); | |
454 | bfd_h_put_32 (abfd, s->section->vma + s->value, buf + 8); | |
455 | ||
456 | bfd_seek (abfd, symoff, SEEK_SET); | |
457 | if (bfd_bwrite ((PTR) buf, 12, abfd) != 12) | |
458 | { | |
459 | fprintf (stderr, "bfd_mach_o_scan_write_symtab_symbols: unable to write %d bytes at %lu\n", | |
460 | 12, (unsigned long) symoff); | |
461 | return -1; | |
462 | } | |
463 | } | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
468 | static int | |
469 | bfd_mach_o_scan_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
470 | { | |
471 | bfd_mach_o_symtab_command *seg = &command->command.symtab; | |
472 | unsigned char buf[16]; | |
473 | ||
474 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
475 | ||
476 | bfd_h_put_32 (abfd, seg->symoff, buf); | |
477 | bfd_h_put_32 (abfd, seg->nsyms, buf + 4); | |
478 | bfd_h_put_32 (abfd, seg->stroff, buf + 8); | |
479 | bfd_h_put_32 (abfd, seg->strsize, buf + 12); | |
480 | ||
481 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
482 | if (bfd_bwrite ((PTR) buf, 16, abfd) != 16) | |
483 | return -1; | |
484 | ||
485 | if (bfd_mach_o_scan_write_symtab_symbols (abfd, command) != 0) | |
486 | return -1; | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
b34976b6 | 491 | static bfd_boolean |
116c20d2 | 492 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b NC |
493 | { |
494 | unsigned int i; | |
495 | asection *s; | |
496 | ||
497 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
498 | ||
499 | /* Write data sections first in case they overlap header data to be | |
500 | written later. */ | |
501 | ||
502 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
503 | ; | |
504 | ||
3af9a47b NC |
505 | /* Now write header information. */ |
506 | if (bfd_mach_o_write_header (abfd, &mdata->header) != 0) | |
b34976b6 | 507 | return FALSE; |
3af9a47b NC |
508 | |
509 | for (i = 0; i < mdata->header.ncmds; i++) | |
510 | { | |
511 | unsigned char buf[8]; | |
512 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
513 | unsigned long typeflag; | |
514 | ||
515 | typeflag = cur->type_required ? cur->type & BFD_MACH_O_LC_REQ_DYLD : cur->type; | |
516 | ||
517 | bfd_h_put_32 (abfd, typeflag, buf); | |
518 | bfd_h_put_32 (abfd, cur->len, buf + 4); | |
519 | ||
520 | bfd_seek (abfd, cur->offset, SEEK_SET); | |
521 | if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) | |
b34976b6 | 522 | return FALSE; |
3af9a47b NC |
523 | |
524 | switch (cur->type) | |
525 | { | |
526 | case BFD_MACH_O_LC_SEGMENT: | |
527 | if (bfd_mach_o_scan_write_segment (abfd, cur) != 0) | |
b34976b6 | 528 | return FALSE; |
3af9a47b NC |
529 | break; |
530 | case BFD_MACH_O_LC_SYMTAB: | |
531 | if (bfd_mach_o_scan_write_symtab (abfd, cur) != 0) | |
b34976b6 | 532 | return FALSE; |
3af9a47b NC |
533 | break; |
534 | case BFD_MACH_O_LC_SYMSEG: | |
535 | break; | |
536 | case BFD_MACH_O_LC_THREAD: | |
537 | case BFD_MACH_O_LC_UNIXTHREAD: | |
538 | if (bfd_mach_o_scan_write_thread (abfd, cur) != 0) | |
b34976b6 | 539 | return FALSE; |
3af9a47b NC |
540 | break; |
541 | case BFD_MACH_O_LC_LOADFVMLIB: | |
542 | case BFD_MACH_O_LC_IDFVMLIB: | |
543 | case BFD_MACH_O_LC_IDENT: | |
544 | case BFD_MACH_O_LC_FVMFILE: | |
545 | case BFD_MACH_O_LC_PREPAGE: | |
546 | case BFD_MACH_O_LC_DYSYMTAB: | |
547 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
548 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
549 | case BFD_MACH_O_LC_ID_DYLIB: | |
550 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
551 | case BFD_MACH_O_LC_ID_DYLINKER: | |
552 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
553 | case BFD_MACH_O_LC_ROUTINES: | |
554 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
555 | break; | |
556 | default: | |
557 | fprintf (stderr, | |
558 | "unable to write unknown load command 0x%lx\n", | |
559 | (long) cur->type); | |
b34976b6 | 560 | return FALSE; |
3af9a47b NC |
561 | } |
562 | } | |
563 | ||
b34976b6 | 564 | return TRUE; |
3af9a47b NC |
565 | } |
566 | ||
567 | static int | |
116c20d2 NC |
568 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
569 | bfd_boolean b ATTRIBUTE_UNUSED) | |
3af9a47b NC |
570 | { |
571 | return 0; | |
572 | } | |
573 | ||
574 | /* Make an empty symbol. This is required only because | |
575 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
576 | ||
577 | static asymbol * | |
116c20d2 | 578 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b NC |
579 | { |
580 | asymbol *new; | |
581 | ||
116c20d2 | 582 | new = bfd_zalloc (abfd, sizeof (* new)); |
3af9a47b NC |
583 | if (new == NULL) |
584 | return new; | |
585 | new->the_bfd = abfd; | |
586 | return new; | |
587 | } | |
588 | ||
589 | static int | |
116c20d2 | 590 | bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) |
3af9a47b NC |
591 | { |
592 | unsigned char buf[28]; | |
edeb6e24 | 593 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b NC |
594 | |
595 | bfd_seek (abfd, 0, SEEK_SET); | |
596 | ||
597 | if (bfd_bread ((PTR) buf, 28, abfd) != 28) | |
598 | return -1; | |
599 | ||
600 | if (bfd_getb32 (buf) == 0xfeedface) | |
601 | { | |
602 | header->byteorder = BFD_ENDIAN_BIG; | |
603 | header->magic = 0xfeedface; | |
604 | get32 = bfd_getb32; | |
605 | } | |
606 | else if (bfd_getl32 (buf) == 0xfeedface) | |
607 | { | |
a95a4550 | 608 | header->byteorder = BFD_ENDIAN_LITTLE; |
3af9a47b NC |
609 | header->magic = 0xfeedface; |
610 | get32 = bfd_getl32; | |
611 | } | |
612 | else | |
613 | { | |
614 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
615 | return -1; | |
616 | } | |
a95a4550 | 617 | |
3af9a47b NC |
618 | header->cputype = (*get32) (buf + 4); |
619 | header->cpusubtype = (*get32) (buf + 8); | |
620 | header->filetype = (*get32) (buf + 12); | |
621 | header->ncmds = (*get32) (buf + 16); | |
622 | header->sizeofcmds = (*get32) (buf + 20); | |
623 | header->flags = (*get32) (buf + 24); | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | static asection * | |
116c20d2 | 629 | bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section) |
3af9a47b NC |
630 | { |
631 | asection *bfdsec; | |
632 | char *sname; | |
633 | const char *prefix = "LC_SEGMENT"; | |
634 | unsigned int snamelen; | |
635 | ||
636 | snamelen = strlen (prefix) + 1 | |
637 | + strlen (section->segname) + 1 | |
638 | + strlen (section->sectname) + 1; | |
639 | ||
116c20d2 | 640 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
641 | if (sname == NULL) |
642 | return NULL; | |
643 | sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname); | |
644 | ||
645 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
646 | if (bfdsec == NULL) | |
647 | return NULL; | |
a95a4550 | 648 | |
3af9a47b NC |
649 | bfdsec->vma = section->addr; |
650 | bfdsec->lma = section->addr; | |
eea6121a | 651 | bfdsec->size = section->size; |
3af9a47b NC |
652 | bfdsec->filepos = section->offset; |
653 | bfdsec->alignment_power = section->align; | |
654 | ||
655 | if (section->flags & BFD_MACH_O_S_ZEROFILL) | |
656 | bfdsec->flags = SEC_ALLOC; | |
657 | else | |
658 | bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; | |
659 | ||
660 | return bfdsec; | |
661 | } | |
662 | ||
663 | static int | |
116c20d2 NC |
664 | bfd_mach_o_scan_read_section (bfd *abfd, |
665 | bfd_mach_o_section *section, | |
666 | bfd_vma offset) | |
3af9a47b NC |
667 | { |
668 | unsigned char buf[68]; | |
669 | ||
670 | bfd_seek (abfd, offset, SEEK_SET); | |
671 | if (bfd_bread ((PTR) buf, 68, abfd) != 68) | |
672 | return -1; | |
a95a4550 | 673 | |
3af9a47b NC |
674 | memcpy (section->sectname, buf, 16); |
675 | section->sectname[16] = '\0'; | |
676 | memcpy (section->segname, buf + 16, 16); | |
677 | section->segname[16] = '\0'; | |
678 | section->addr = bfd_h_get_32 (abfd, buf + 32); | |
679 | section->size = bfd_h_get_32 (abfd, buf + 36); | |
680 | section->offset = bfd_h_get_32 (abfd, buf + 40); | |
681 | section->align = bfd_h_get_32 (abfd, buf + 44); | |
682 | section->reloff = bfd_h_get_32 (abfd, buf + 48); | |
683 | section->nreloc = bfd_h_get_32 (abfd, buf + 52); | |
684 | section->flags = bfd_h_get_32 (abfd, buf + 56); | |
685 | section->reserved1 = bfd_h_get_32 (abfd, buf + 60); | |
686 | section->reserved2 = bfd_h_get_32 (abfd, buf + 64); | |
687 | section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section); | |
688 | ||
689 | if (section->bfdsection == NULL) | |
690 | return -1; | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
3af9a47b | 695 | int |
116c20d2 NC |
696 | bfd_mach_o_scan_read_symtab_symbol (bfd *abfd, |
697 | bfd_mach_o_symtab_command *sym, | |
698 | asymbol *s, | |
699 | unsigned long i) | |
3af9a47b NC |
700 | { |
701 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
702 | bfd_vma symoff = sym->symoff + (i * 12); | |
703 | unsigned char buf[12]; | |
704 | unsigned char type = -1; | |
705 | unsigned char section = -1; | |
706 | short desc = -1; | |
e84d6fca | 707 | unsigned long value = -1; |
3af9a47b NC |
708 | unsigned long stroff = -1; |
709 | unsigned int symtype = -1; | |
710 | ||
711 | BFD_ASSERT (sym->strtab != NULL); | |
712 | ||
713 | bfd_seek (abfd, symoff, SEEK_SET); | |
714 | if (bfd_bread ((PTR) buf, 12, abfd) != 12) | |
715 | { | |
716 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n", | |
717 | 12, (unsigned long) symoff); | |
718 | return -1; | |
719 | } | |
720 | ||
721 | stroff = bfd_h_get_32 (abfd, buf); | |
722 | type = bfd_h_get_8 (abfd, buf + 4); | |
723 | symtype = (type & 0x0e); | |
724 | section = bfd_h_get_8 (abfd, buf + 5) - 1; | |
725 | desc = bfd_h_get_16 (abfd, buf + 6); | |
726 | value = bfd_h_get_32 (abfd, buf + 8); | |
727 | ||
728 | if (stroff >= sym->strsize) | |
729 | { | |
730 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n", | |
731 | (unsigned long) stroff, (unsigned long) sym->strsize); | |
a95a4550 | 732 | return -1; |
3af9a47b NC |
733 | } |
734 | ||
735 | s->the_bfd = abfd; | |
736 | s->name = sym->strtab + stroff; | |
737 | s->value = value; | |
738 | s->udata.i = (type << 24) | (section << 16) | desc; | |
739 | s->flags = 0x0; | |
740 | ||
741 | if (type & BFD_MACH_O_N_STAB) | |
742 | { | |
743 | s->flags |= BSF_DEBUGGING; | |
744 | s->section = bfd_und_section_ptr; | |
745 | } | |
746 | else | |
747 | { | |
748 | if (type & BFD_MACH_O_N_PEXT) | |
749 | { | |
750 | type &= ~BFD_MACH_O_N_PEXT; | |
751 | s->flags |= BSF_GLOBAL; | |
752 | } | |
753 | ||
754 | if (type & BFD_MACH_O_N_EXT) | |
755 | { | |
756 | type &= ~BFD_MACH_O_N_EXT; | |
757 | s->flags |= BSF_GLOBAL; | |
758 | } | |
759 | ||
760 | switch (symtype) | |
761 | { | |
762 | case BFD_MACH_O_N_UNDF: | |
763 | s->section = bfd_und_section_ptr; | |
764 | break; | |
765 | case BFD_MACH_O_N_PBUD: | |
766 | s->section = bfd_und_section_ptr; | |
767 | break; | |
768 | case BFD_MACH_O_N_ABS: | |
769 | s->section = bfd_abs_section_ptr; | |
770 | break; | |
771 | case BFD_MACH_O_N_SECT: | |
772 | if ((section > 0) && (section <= mdata->nsects)) | |
773 | { | |
774 | s->section = mdata->sections[section - 1]->bfdsection; | |
775 | s->value = s->value - mdata->sections[section - 1]->addr; | |
776 | } | |
777 | else | |
778 | { | |
779 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
780 | if (section != 0) | |
781 | { | |
782 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " | |
a95a4550 | 783 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n", |
3af9a47b NC |
784 | s->name, section, mdata->nsects); |
785 | } | |
786 | s->section = bfd_und_section_ptr; | |
787 | } | |
788 | break; | |
789 | case BFD_MACH_O_N_INDR: | |
790 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " | |
a95a4550 | 791 | "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n", |
3af9a47b NC |
792 | s->name); |
793 | s->section = bfd_und_section_ptr; | |
794 | break; | |
795 | default: | |
796 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " | |
a95a4550 | 797 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n", |
3af9a47b NC |
798 | s->name, symtype); |
799 | s->section = bfd_und_section_ptr; | |
800 | break; | |
801 | } | |
802 | } | |
803 | ||
804 | return 0; | |
805 | } | |
806 | ||
807 | int | |
116c20d2 NC |
808 | bfd_mach_o_scan_read_symtab_strtab (bfd *abfd, |
809 | bfd_mach_o_symtab_command *sym) | |
3af9a47b NC |
810 | { |
811 | BFD_ASSERT (sym->strtab == NULL); | |
812 | ||
813 | if (abfd->flags & BFD_IN_MEMORY) | |
814 | { | |
815 | struct bfd_in_memory *b; | |
816 | ||
817 | b = (struct bfd_in_memory *) abfd->iostream; | |
818 | ||
819 | if ((sym->stroff + sym->strsize) > b->size) | |
820 | { | |
821 | bfd_set_error (bfd_error_file_truncated); | |
822 | return -1; | |
823 | } | |
f075ee0c | 824 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b NC |
825 | return 0; |
826 | } | |
827 | ||
828 | sym->strtab = bfd_alloc (abfd, sym->strsize); | |
829 | if (sym->strtab == NULL) | |
830 | return -1; | |
831 | ||
832 | bfd_seek (abfd, sym->stroff, SEEK_SET); | |
833 | if (bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize) | |
834 | { | |
835 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_strtab: unable to read %lu bytes at %lu\n", | |
836 | sym->strsize, sym->stroff); | |
a95a4550 | 837 | return -1; |
3af9a47b NC |
838 | } |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
a95a4550 | 843 | int |
116c20d2 NC |
844 | bfd_mach_o_scan_read_symtab_symbols (bfd *abfd, |
845 | bfd_mach_o_symtab_command *sym) | |
3af9a47b NC |
846 | { |
847 | unsigned long i; | |
848 | int ret; | |
849 | ||
850 | BFD_ASSERT (sym->symbols == NULL); | |
851 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (asymbol)); | |
852 | ||
853 | if (sym->symbols == NULL) | |
854 | { | |
855 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n"); | |
a95a4550 | 856 | return -1; |
3af9a47b | 857 | } |
a95a4550 | 858 | |
3af9a47b NC |
859 | ret = bfd_mach_o_scan_read_symtab_strtab (abfd, sym); |
860 | if (ret != 0) | |
861 | return ret; | |
862 | ||
863 | for (i = 0; i < sym->nsyms; i++) | |
864 | { | |
865 | ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i); | |
866 | if (ret != 0) | |
867 | return ret; | |
868 | } | |
a95a4550 | 869 | |
3af9a47b NC |
870 | return 0; |
871 | } | |
872 | ||
873 | int | |
116c20d2 NC |
874 | bfd_mach_o_scan_read_dysymtab_symbol (bfd *abfd, |
875 | bfd_mach_o_dysymtab_command *dysym, | |
876 | bfd_mach_o_symtab_command *sym, | |
877 | asymbol *s, | |
878 | unsigned long i) | |
3af9a47b NC |
879 | { |
880 | unsigned long isymoff = dysym->indirectsymoff + (i * 4); | |
881 | unsigned long symindex; | |
882 | unsigned char buf[4]; | |
883 | ||
884 | BFD_ASSERT (i < dysym->nindirectsyms); | |
a95a4550 | 885 | |
3af9a47b NC |
886 | bfd_seek (abfd, isymoff, SEEK_SET); |
887 | if (bfd_bread ((PTR) buf, 4, abfd) != 4) | |
888 | { | |
889 | fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n", | |
890 | (unsigned long) 4, isymoff); | |
891 | return -1; | |
892 | } | |
893 | symindex = bfd_h_get_32 (abfd, buf); | |
a95a4550 | 894 | |
3af9a47b NC |
895 | return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex); |
896 | } | |
897 | ||
898 | static const char * | |
116c20d2 | 899 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
900 | { |
901 | switch ((int) flavour) | |
902 | { | |
903 | case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE"; | |
904 | case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE"; | |
905 | case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE"; | |
906 | case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE"; | |
907 | case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE"; | |
908 | case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE"; | |
909 | case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE"; | |
910 | case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE"; | |
911 | case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE"; | |
912 | case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE"; | |
913 | case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE"; | |
914 | case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE"; | |
915 | default: return "UNKNOWN"; | |
916 | } | |
917 | } | |
918 | ||
919 | static const char * | |
116c20d2 | 920 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
921 | { |
922 | switch ((int) flavour) | |
923 | { | |
924 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; | |
925 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
926 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
927 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
928 | default: return "UNKNOWN"; | |
929 | } | |
930 | } | |
931 | ||
932 | static int | |
116c20d2 NC |
933 | bfd_mach_o_scan_read_dylinker (bfd *abfd, |
934 | bfd_mach_o_load_command *command) | |
3af9a47b NC |
935 | { |
936 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
937 | unsigned char buf[4]; | |
938 | unsigned int nameoff; | |
939 | asection *bfdsec; | |
940 | char *sname; | |
941 | const char *prefix; | |
942 | ||
943 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) | |
944 | || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); | |
945 | ||
946 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
947 | if (bfd_bread ((PTR) buf, 4, abfd) != 4) | |
948 | return -1; | |
949 | ||
950 | nameoff = bfd_h_get_32 (abfd, buf + 0); | |
951 | ||
952 | cmd->name_offset = command->offset + nameoff; | |
953 | cmd->name_len = command->len - nameoff; | |
954 | ||
955 | if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER) | |
956 | prefix = "LC_LOAD_DYLINKER"; | |
957 | else if (command->type == BFD_MACH_O_LC_ID_DYLINKER) | |
958 | prefix = "LC_ID_DYLINKER"; | |
959 | else | |
960 | abort (); | |
961 | ||
116c20d2 | 962 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
963 | if (sname == NULL) |
964 | return -1; | |
965 | strcpy (sname, prefix); | |
966 | ||
967 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
968 | if (bfdsec == NULL) | |
969 | return -1; | |
a95a4550 | 970 | |
3af9a47b NC |
971 | bfdsec->vma = 0; |
972 | bfdsec->lma = 0; | |
eea6121a | 973 | bfdsec->size = command->len - 8; |
3af9a47b NC |
974 | bfdsec->filepos = command->offset + 8; |
975 | bfdsec->alignment_power = 0; | |
976 | bfdsec->flags = SEC_HAS_CONTENTS; | |
977 | ||
978 | cmd->section = bfdsec; | |
979 | ||
980 | return 0; | |
981 | } | |
982 | ||
983 | static int | |
116c20d2 | 984 | bfd_mach_o_scan_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
985 | { |
986 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
987 | unsigned char buf[16]; | |
988 | unsigned int nameoff; | |
989 | asection *bfdsec; | |
990 | char *sname; | |
991 | const char *prefix; | |
992 | ||
993 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLIB) | |
994 | || (command->type == BFD_MACH_O_LC_LOAD_DYLIB) | |
995 | || (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB)); | |
996 | ||
997 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
998 | if (bfd_bread ((PTR) buf, 16, abfd) != 16) | |
999 | return -1; | |
1000 | ||
1001 | nameoff = bfd_h_get_32 (abfd, buf + 0); | |
1002 | cmd->timestamp = bfd_h_get_32 (abfd, buf + 4); | |
1003 | cmd->current_version = bfd_h_get_32 (abfd, buf + 8); | |
1004 | cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12); | |
1005 | ||
1006 | cmd->name_offset = command->offset + nameoff; | |
1007 | cmd->name_len = command->len - nameoff; | |
1008 | ||
1009 | if (command->type == BFD_MACH_O_LC_LOAD_DYLIB) | |
1010 | prefix = "LC_LOAD_DYLIB"; | |
1011 | else if (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB) | |
1012 | prefix = "LC_LOAD_WEAK_DYLIB"; | |
1013 | else if (command->type == BFD_MACH_O_LC_ID_DYLIB) | |
1014 | prefix = "LC_ID_DYLIB"; | |
1015 | else | |
1016 | abort (); | |
1017 | ||
116c20d2 | 1018 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
1019 | if (sname == NULL) |
1020 | return -1; | |
1021 | strcpy (sname, prefix); | |
1022 | ||
1023 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1024 | if (bfdsec == NULL) | |
1025 | return -1; | |
a95a4550 | 1026 | |
3af9a47b NC |
1027 | bfdsec->vma = 0; |
1028 | bfdsec->lma = 0; | |
eea6121a | 1029 | bfdsec->size = command->len - 8; |
3af9a47b NC |
1030 | bfdsec->filepos = command->offset + 8; |
1031 | bfdsec->alignment_power = 0; | |
1032 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1033 | ||
1034 | cmd->section = bfdsec; | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | static int | |
116c20d2 NC |
1040 | bfd_mach_o_scan_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED, |
1041 | bfd_mach_o_load_command *command ATTRIBUTE_UNUSED) | |
3af9a47b NC |
1042 | { |
1043 | /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ | |
1044 | ||
1045 | BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static int | |
116c20d2 | 1050 | bfd_mach_o_scan_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1051 | { |
1052 | bfd_mach_o_data_struct *mdata = NULL; | |
1053 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1054 | unsigned char buf[8]; | |
1055 | bfd_vma offset; | |
1056 | unsigned int nflavours; | |
1057 | unsigned int i; | |
1058 | ||
1059 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1060 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1061 | ||
1062 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
1063 | mdata = abfd->tdata.mach_o_data; | |
a95a4550 | 1064 | |
3af9a47b NC |
1065 | offset = 8; |
1066 | nflavours = 0; | |
1067 | while (offset != command->len) | |
1068 | { | |
1069 | if (offset >= command->len) | |
1070 | return -1; | |
1071 | ||
1072 | bfd_seek (abfd, command->offset + offset, SEEK_SET); | |
1073 | ||
1074 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
1075 | return -1; | |
1076 | ||
1077 | offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4; | |
1078 | nflavours++; | |
1079 | } | |
1080 | ||
116c20d2 | 1081 | cmd->flavours = bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); |
3af9a47b NC |
1082 | if (cmd->flavours == NULL) |
1083 | return -1; | |
1084 | cmd->nflavours = nflavours; | |
1085 | ||
1086 | offset = 8; | |
1087 | nflavours = 0; | |
1088 | while (offset != command->len) | |
1089 | { | |
1090 | if (offset >= command->len) | |
1091 | return -1; | |
1092 | ||
1093 | if (nflavours >= cmd->nflavours) | |
1094 | return -1; | |
1095 | ||
1096 | bfd_seek (abfd, command->offset + offset, SEEK_SET); | |
1097 | ||
1098 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
1099 | return -1; | |
1100 | ||
1101 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf); | |
1102 | cmd->flavours[nflavours].offset = command->offset + offset + 8; | |
1103 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4; | |
1104 | offset += cmd->flavours[nflavours].size + 8; | |
1105 | nflavours++; | |
1106 | } | |
1107 | ||
1108 | for (i = 0; i < nflavours; i++) | |
1109 | { | |
1110 | asection *bfdsec; | |
1111 | unsigned int snamelen; | |
1112 | char *sname; | |
1113 | const char *flavourstr; | |
1114 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
1115 | unsigned int j = 0; |
1116 | ||
3af9a47b NC |
1117 | switch (mdata->header.cputype) |
1118 | { | |
1119 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1120 | flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
1121 | break; | |
1122 | case BFD_MACH_O_CPU_TYPE_I386: | |
1123 | flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
1124 | break; | |
1125 | default: | |
1126 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
1127 | break; | |
1128 | } | |
a95a4550 | 1129 | |
3af9a47b | 1130 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 1131 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
1132 | if (sname == NULL) |
1133 | return -1; | |
1134 | ||
1135 | for (;;) | |
1136 | { | |
a95a4550 AM |
1137 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
1138 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 1139 | break; |
a95a4550 | 1140 | j++; |
3af9a47b NC |
1141 | } |
1142 | ||
1143 | bfdsec = bfd_make_section (abfd, sname); | |
a95a4550 | 1144 | |
3af9a47b NC |
1145 | bfdsec->vma = 0; |
1146 | bfdsec->lma = 0; | |
eea6121a | 1147 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
1148 | bfdsec->filepos = cmd->flavours[i].offset; |
1149 | bfdsec->alignment_power = 0x0; | |
1150 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1151 | ||
1152 | cmd->section = bfdsec; | |
1153 | } | |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | ||
a95a4550 | 1158 | static int |
116c20d2 | 1159 | bfd_mach_o_scan_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1160 | { |
1161 | bfd_mach_o_dysymtab_command *seg = &command->command.dysymtab; | |
1162 | unsigned char buf[72]; | |
1163 | ||
1164 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
1165 | ||
1166 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
1167 | if (bfd_bread ((PTR) buf, 72, abfd) != 72) | |
1168 | return -1; | |
1169 | ||
1170 | seg->ilocalsym = bfd_h_get_32 (abfd, buf + 0); | |
1171 | seg->nlocalsym = bfd_h_get_32 (abfd, buf + 4); | |
1172 | seg->iextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
1173 | seg->nextdefsym = bfd_h_get_32 (abfd, buf + 12); | |
1174 | seg->iundefsym = bfd_h_get_32 (abfd, buf + 16); | |
1175 | seg->nundefsym = bfd_h_get_32 (abfd, buf + 20); | |
1176 | seg->tocoff = bfd_h_get_32 (abfd, buf + 24); | |
1177 | seg->ntoc = bfd_h_get_32 (abfd, buf + 28); | |
1178 | seg->modtaboff = bfd_h_get_32 (abfd, buf + 32); | |
1179 | seg->nmodtab = bfd_h_get_32 (abfd, buf + 36); | |
1180 | seg->extrefsymoff = bfd_h_get_32 (abfd, buf + 40); | |
1181 | seg->nextrefsyms = bfd_h_get_32 (abfd, buf + 44); | |
1182 | seg->indirectsymoff = bfd_h_get_32 (abfd, buf + 48); | |
1183 | seg->nindirectsyms = bfd_h_get_32 (abfd, buf + 52); | |
1184 | seg->extreloff = bfd_h_get_32 (abfd, buf + 56); | |
1185 | seg->nextrel = bfd_h_get_32 (abfd, buf + 60); | |
1186 | seg->locreloff = bfd_h_get_32 (abfd, buf + 64); | |
1187 | seg->nlocrel = bfd_h_get_32 (abfd, buf + 68); | |
1188 | ||
1189 | return 0; | |
1190 | } | |
1191 | ||
a95a4550 | 1192 | static int |
116c20d2 | 1193 | bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1194 | { |
1195 | bfd_mach_o_symtab_command *seg = &command->command.symtab; | |
1196 | unsigned char buf[16]; | |
1197 | asection *bfdsec; | |
1198 | char *sname; | |
1199 | const char *prefix = "LC_SYMTAB.stabs"; | |
1200 | ||
1201 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1202 | ||
1203 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
1204 | if (bfd_bread ((PTR) buf, 16, abfd) != 16) | |
1205 | return -1; | |
a95a4550 | 1206 | |
3af9a47b NC |
1207 | seg->symoff = bfd_h_get_32 (abfd, buf); |
1208 | seg->nsyms = bfd_h_get_32 (abfd, buf + 4); | |
1209 | seg->stroff = bfd_h_get_32 (abfd, buf + 8); | |
1210 | seg->strsize = bfd_h_get_32 (abfd, buf + 12); | |
1211 | seg->symbols = NULL; | |
1212 | seg->strtab = NULL; | |
1213 | ||
116c20d2 | 1214 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
1215 | if (sname == NULL) |
1216 | return -1; | |
1217 | strcpy (sname, prefix); | |
1218 | ||
1219 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1220 | if (bfdsec == NULL) | |
1221 | return -1; | |
a95a4550 | 1222 | |
3af9a47b NC |
1223 | bfdsec->vma = 0; |
1224 | bfdsec->lma = 0; | |
eea6121a | 1225 | bfdsec->size = seg->nsyms * 12; |
3af9a47b NC |
1226 | bfdsec->filepos = seg->symoff; |
1227 | bfdsec->alignment_power = 0; | |
1228 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1229 | ||
1230 | seg->stabs_segment = bfdsec; | |
1231 | ||
1232 | prefix = "LC_SYMTAB.stabstr"; | |
116c20d2 | 1233 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
1234 | if (sname == NULL) |
1235 | return -1; | |
1236 | strcpy (sname, prefix); | |
1237 | ||
1238 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1239 | if (bfdsec == NULL) | |
1240 | return -1; | |
a95a4550 | 1241 | |
3af9a47b NC |
1242 | bfdsec->vma = 0; |
1243 | bfdsec->lma = 0; | |
eea6121a | 1244 | bfdsec->size = seg->strsize; |
3af9a47b NC |
1245 | bfdsec->filepos = seg->stroff; |
1246 | bfdsec->alignment_power = 0; | |
1247 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1248 | ||
1249 | seg->stabstr_segment = bfdsec; | |
1250 | ||
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | static int | |
116c20d2 | 1255 | bfd_mach_o_scan_read_segment (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1256 | { |
1257 | unsigned char buf[48]; | |
1258 | bfd_mach_o_segment_command *seg = &command->command.segment; | |
1259 | unsigned long i; | |
1260 | asection *bfdsec; | |
1261 | char *sname; | |
1262 | const char *prefix = "LC_SEGMENT"; | |
1263 | unsigned int snamelen; | |
a95a4550 | 1264 | |
3af9a47b NC |
1265 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1266 | ||
1267 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
1268 | if (bfd_bread ((PTR) buf, 48, abfd) != 48) | |
1269 | return -1; | |
1270 | ||
1271 | memcpy (seg->segname, buf, 16); | |
1272 | seg->vmaddr = bfd_h_get_32 (abfd, buf + 16); | |
1273 | seg->vmsize = bfd_h_get_32 (abfd, buf + 20); | |
1274 | seg->fileoff = bfd_h_get_32 (abfd, buf + 24); | |
1275 | seg->filesize = bfd_h_get_32 (abfd, buf + 28); | |
1276 | /* seg->maxprot = bfd_h_get_32 (abfd, buf + 32); */ | |
1277 | /* seg->initprot = bfd_h_get_32 (abfd, buf + 36); */ | |
1278 | seg->nsects = bfd_h_get_32 (abfd, buf + 40); | |
1279 | seg->flags = bfd_h_get_32 (abfd, buf + 44); | |
1280 | ||
1281 | snamelen = strlen (prefix) + 1 + strlen (seg->segname) + 1; | |
116c20d2 | 1282 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
1283 | if (sname == NULL) |
1284 | return -1; | |
1285 | sprintf (sname, "%s.%s", prefix, seg->segname); | |
1286 | ||
1287 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1288 | if (bfdsec == NULL) | |
1289 | return -1; | |
1290 | ||
1291 | bfdsec->vma = seg->vmaddr; | |
1292 | bfdsec->lma = seg->vmaddr; | |
eea6121a | 1293 | bfdsec->size = seg->filesize; |
3af9a47b NC |
1294 | bfdsec->filepos = seg->fileoff; |
1295 | bfdsec->alignment_power = 0x0; | |
1296 | bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; | |
1297 | ||
1298 | seg->segment = bfdsec; | |
1299 | ||
1300 | if (seg->nsects != 0) | |
1301 | { | |
116c20d2 | 1302 | seg->sections = bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section)); |
3af9a47b NC |
1303 | if (seg->sections == NULL) |
1304 | return -1; | |
a95a4550 | 1305 | |
3af9a47b NC |
1306 | for (i = 0; i < seg->nsects; i++) |
1307 | { | |
1308 | bfd_vma segoff = command->offset + 48 + 8 + (i * 68); | |
1309 | ||
e84d6fca AM |
1310 | if (bfd_mach_o_scan_read_section (abfd, &seg->sections[i], |
1311 | segoff) != 0) | |
3af9a47b | 1312 | return -1; |
a95a4550 | 1313 | } |
3af9a47b NC |
1314 | } |
1315 | ||
1316 | return 0; | |
1317 | } | |
1318 | ||
1319 | static int | |
116c20d2 | 1320 | bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1321 | { |
1322 | unsigned char buf[8]; | |
1323 | ||
1324 | bfd_seek (abfd, command->offset, SEEK_SET); | |
1325 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
1326 | return -1; | |
1327 | ||
1328 | command->type = (bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD); | |
e84d6fca AM |
1329 | command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD |
1330 | ? 1 : 0); | |
3af9a47b NC |
1331 | command->len = bfd_h_get_32 (abfd, buf + 4); |
1332 | ||
1333 | switch (command->type) | |
1334 | { | |
1335 | case BFD_MACH_O_LC_SEGMENT: | |
1336 | if (bfd_mach_o_scan_read_segment (abfd, command) != 0) | |
1337 | return -1; | |
1338 | break; | |
1339 | case BFD_MACH_O_LC_SYMTAB: | |
1340 | if (bfd_mach_o_scan_read_symtab (abfd, command) != 0) | |
1341 | return -1; | |
1342 | break; | |
1343 | case BFD_MACH_O_LC_SYMSEG: | |
1344 | break; | |
1345 | case BFD_MACH_O_LC_THREAD: | |
1346 | case BFD_MACH_O_LC_UNIXTHREAD: | |
1347 | if (bfd_mach_o_scan_read_thread (abfd, command) != 0) | |
1348 | return -1; | |
1349 | break; | |
1350 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
1351 | case BFD_MACH_O_LC_ID_DYLINKER: | |
1352 | if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0) | |
1353 | return -1; | |
1354 | break; | |
1355 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
1356 | case BFD_MACH_O_LC_ID_DYLIB: | |
1357 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
1358 | if (bfd_mach_o_scan_read_dylib (abfd, command) != 0) | |
1359 | return -1; | |
1360 | break; | |
1361 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
1362 | if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0) | |
1363 | return -1; | |
1364 | break; | |
1365 | case BFD_MACH_O_LC_LOADFVMLIB: | |
1366 | case BFD_MACH_O_LC_IDFVMLIB: | |
1367 | case BFD_MACH_O_LC_IDENT: | |
1368 | case BFD_MACH_O_LC_FVMFILE: | |
1369 | case BFD_MACH_O_LC_PREPAGE: | |
1370 | case BFD_MACH_O_LC_ROUTINES: | |
1371 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
1372 | break; | |
1373 | case BFD_MACH_O_LC_DYSYMTAB: | |
1374 | if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0) | |
1375 | return -1; | |
1376 | break; | |
1377 | case BFD_MACH_O_LC_SUB_UMBRELLA: | |
1378 | case BFD_MACH_O_LC_SUB_CLIENT: | |
1379 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
1380 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
1381 | case BFD_MACH_O_LC_PREBIND_CKSUM: | |
1382 | break; | |
1383 | default: | |
1384 | fprintf (stderr, "unable to read unknown load command 0x%lx\n", | |
1385 | (unsigned long) command->type); | |
1386 | break; | |
1387 | } | |
1388 | ||
1389 | return 0; | |
1390 | } | |
1391 | ||
1392 | static void | |
116c20d2 | 1393 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b NC |
1394 | { |
1395 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
1396 | long csect = 0; | |
1397 | unsigned long i, j; | |
a95a4550 | 1398 | |
3af9a47b NC |
1399 | mdata->nsects = 0; |
1400 | ||
1401 | for (i = 0; i < mdata->header.ncmds; i++) | |
1402 | { | |
1403 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) | |
1404 | { | |
e84d6fca AM |
1405 | bfd_mach_o_segment_command *seg; |
1406 | ||
1407 | seg = &mdata->commands[i].command.segment; | |
3af9a47b NC |
1408 | mdata->nsects += seg->nsects; |
1409 | } | |
1410 | } | |
1411 | ||
e84d6fca AM |
1412 | mdata->sections = bfd_alloc (abfd, |
1413 | mdata->nsects * sizeof (bfd_mach_o_section *)); | |
3af9a47b NC |
1414 | csect = 0; |
1415 | ||
1416 | for (i = 0; i < mdata->header.ncmds; i++) | |
1417 | { | |
1418 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) | |
1419 | { | |
e84d6fca | 1420 | bfd_mach_o_segment_command *seg; |
3af9a47b | 1421 | |
e84d6fca | 1422 | seg = &mdata->commands[i].command.segment; |
3af9a47b NC |
1423 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
1424 | ||
1425 | for (j = 0; j < seg->nsects; j++) | |
1426 | mdata->sections[csect++] = &seg->sections[j]; | |
1427 | } | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | int | |
116c20d2 | 1432 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b NC |
1433 | { |
1434 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
1435 | bfd_mach_o_thread_command *cmd = NULL; | |
1436 | unsigned long i; | |
1437 | ||
1438 | for (i = 0; i < mdata->header.ncmds; i++) | |
1439 | { | |
1440 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || | |
1441 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) | |
1442 | { | |
1443 | if (cmd == NULL) | |
1444 | cmd = &mdata->commands[i].command.thread; | |
1445 | else | |
1446 | return 0; | |
1447 | } | |
1448 | } | |
1449 | ||
1450 | if (cmd == NULL) | |
1451 | return 0; | |
1452 | ||
1453 | for (i = 0; i < cmd->nflavours; i++) | |
1454 | { | |
a95a4550 | 1455 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
e84d6fca AM |
1456 | && (cmd->flavours[i].flavour |
1457 | == (unsigned long) BFD_MACH_O_i386_THREAD_STATE)) | |
3af9a47b NC |
1458 | { |
1459 | unsigned char buf[4]; | |
1460 | ||
1461 | bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET); | |
1462 | ||
1463 | if (bfd_bread (buf, 4, abfd) != 4) | |
1464 | return -1; | |
1465 | ||
1466 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
1467 | } | |
a95a4550 | 1468 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
3af9a47b NC |
1469 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
1470 | { | |
1471 | unsigned char buf[4]; | |
1472 | ||
1473 | bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET); | |
1474 | ||
1475 | if (bfd_bread (buf, 4, abfd) != 4) | |
1476 | return -1; | |
1477 | ||
1478 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | return 0; | |
1483 | } | |
1484 | ||
1485 | int | |
116c20d2 NC |
1486 | bfd_mach_o_scan (bfd *abfd, |
1487 | bfd_mach_o_header *header, | |
1488 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
1489 | { |
1490 | unsigned int i; | |
3af9a47b NC |
1491 | enum bfd_architecture cputype; |
1492 | unsigned long cpusubtype; | |
1493 | ||
3af9a47b NC |
1494 | mdata->header = *header; |
1495 | mdata->symbols = NULL; | |
1496 | ||
e84d6fca AM |
1497 | abfd->flags = (abfd->xvec->object_flags |
1498 | | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS))); | |
3af9a47b NC |
1499 | abfd->tdata.mach_o_data = mdata; |
1500 | ||
e84d6fca AM |
1501 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
1502 | &cputype, &cpusubtype); | |
3af9a47b NC |
1503 | if (cputype == bfd_arch_unknown) |
1504 | { | |
1505 | fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n", | |
1506 | header->cputype, header->cpusubtype); | |
1507 | return -1; | |
1508 | } | |
1509 | ||
1510 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 1511 | |
3af9a47b NC |
1512 | if (header->ncmds != 0) |
1513 | { | |
116c20d2 | 1514 | mdata->commands = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); |
3af9a47b NC |
1515 | if (mdata->commands == NULL) |
1516 | return -1; | |
a95a4550 | 1517 | |
3af9a47b NC |
1518 | for (i = 0; i < header->ncmds; i++) |
1519 | { | |
1520 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
1521 | ||
1522 | if (i == 0) | |
1523 | cur->offset = 28; | |
1524 | else | |
1525 | { | |
1526 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; | |
1527 | cur->offset = prev->offset + prev->len; | |
1528 | } | |
1529 | ||
1530 | if (bfd_mach_o_scan_read_command (abfd, cur) < 0) | |
1531 | return -1; | |
a95a4550 | 1532 | } |
3af9a47b NC |
1533 | } |
1534 | ||
1535 | if (bfd_mach_o_scan_start_address (abfd) < 0) | |
7e3102a7 | 1536 | return -1; |
3af9a47b NC |
1537 | |
1538 | bfd_mach_o_flatten_sections (abfd); | |
3af9a47b NC |
1539 | return 0; |
1540 | } | |
1541 | ||
b34976b6 | 1542 | bfd_boolean |
116c20d2 | 1543 | bfd_mach_o_mkobject (bfd *abfd) |
3af9a47b NC |
1544 | { |
1545 | bfd_mach_o_data_struct *mdata = NULL; | |
1546 | ||
116c20d2 | 1547 | mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 1548 | if (mdata == NULL) |
b34976b6 | 1549 | return FALSE; |
3af9a47b NC |
1550 | abfd->tdata.mach_o_data = mdata; |
1551 | ||
1552 | mdata->header.magic = 0; | |
1553 | mdata->header.cputype = 0; | |
1554 | mdata->header.cpusubtype = 0; | |
1555 | mdata->header.filetype = 0; | |
1556 | mdata->header.ncmds = 0; | |
1557 | mdata->header.sizeofcmds = 0; | |
1558 | mdata->header.flags = 0; | |
1559 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
1560 | mdata->commands = NULL; | |
1561 | mdata->nsymbols = 0; | |
1562 | mdata->symbols = NULL; | |
1563 | mdata->nsects = 0; | |
1564 | mdata->sections = NULL; | |
1565 | mdata->ibfd = NULL; | |
1566 | ||
b34976b6 | 1567 | return TRUE; |
3af9a47b NC |
1568 | } |
1569 | ||
1570 | const bfd_target * | |
116c20d2 | 1571 | bfd_mach_o_object_p (bfd *abfd) |
3af9a47b | 1572 | { |
e84d6fca | 1573 | struct bfd_preserve preserve; |
3af9a47b NC |
1574 | bfd_mach_o_header header; |
1575 | ||
e84d6fca | 1576 | preserve.marker = NULL; |
3af9a47b | 1577 | if (bfd_mach_o_read_header (abfd, &header) != 0) |
e84d6fca | 1578 | goto wrong; |
3af9a47b | 1579 | |
e84d6fca AM |
1580 | if (! (header.byteorder == BFD_ENDIAN_BIG |
1581 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 1582 | { |
e84d6fca AM |
1583 | fprintf (stderr, "unknown header byte-order value 0x%lx\n", |
1584 | (long) header.byteorder); | |
1585 | goto wrong; | |
3af9a47b NC |
1586 | } |
1587 | ||
e84d6fca AM |
1588 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
1589 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
1590 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
1591 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
1592 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
1593 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
1594 | goto wrong; | |
3af9a47b | 1595 | |
e84d6fca AM |
1596 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
1597 | if (preserve.marker == NULL | |
1598 | || !bfd_preserve_save (abfd, &preserve)) | |
1599 | goto fail; | |
3af9a47b | 1600 | |
e84d6fca AM |
1601 | if (bfd_mach_o_scan (abfd, &header, |
1602 | (bfd_mach_o_data_struct *) preserve.marker) != 0) | |
1603 | goto wrong; | |
a95a4550 | 1604 | |
e84d6fca | 1605 | bfd_preserve_finish (abfd, &preserve); |
3af9a47b | 1606 | return abfd->xvec; |
e84d6fca AM |
1607 | |
1608 | wrong: | |
1609 | bfd_set_error (bfd_error_wrong_format); | |
1610 | ||
1611 | fail: | |
1612 | if (preserve.marker != NULL) | |
1613 | bfd_preserve_restore (abfd, &preserve); | |
1614 | return NULL; | |
3af9a47b NC |
1615 | } |
1616 | ||
1617 | const bfd_target * | |
116c20d2 | 1618 | bfd_mach_o_core_p (bfd *abfd) |
3af9a47b | 1619 | { |
e84d6fca | 1620 | struct bfd_preserve preserve; |
3af9a47b NC |
1621 | bfd_mach_o_header header; |
1622 | ||
e84d6fca | 1623 | preserve.marker = NULL; |
3af9a47b | 1624 | if (bfd_mach_o_read_header (abfd, &header) != 0) |
e84d6fca | 1625 | goto wrong; |
3af9a47b | 1626 | |
e84d6fca AM |
1627 | if (! (header.byteorder == BFD_ENDIAN_BIG |
1628 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 1629 | { |
e84d6fca AM |
1630 | fprintf (stderr, "unknown header byte-order value 0x%lx\n", |
1631 | (long) header.byteorder); | |
3af9a47b NC |
1632 | abort (); |
1633 | } | |
1634 | ||
e84d6fca AM |
1635 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
1636 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
1637 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
1638 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
1639 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
1640 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
1641 | goto wrong; | |
3af9a47b NC |
1642 | |
1643 | if (header.filetype != BFD_MACH_O_MH_CORE) | |
e84d6fca | 1644 | goto wrong; |
3af9a47b | 1645 | |
e84d6fca AM |
1646 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
1647 | if (preserve.marker == NULL | |
1648 | || !bfd_preserve_save (abfd, &preserve)) | |
1649 | goto fail; | |
a95a4550 | 1650 | |
e84d6fca AM |
1651 | if (bfd_mach_o_scan (abfd, &header, |
1652 | (bfd_mach_o_data_struct *) preserve.marker) != 0) | |
1653 | goto wrong; | |
1654 | ||
1655 | bfd_preserve_finish (abfd, &preserve); | |
3af9a47b | 1656 | return abfd->xvec; |
e84d6fca AM |
1657 | |
1658 | wrong: | |
1659 | bfd_set_error (bfd_error_wrong_format); | |
1660 | ||
1661 | fail: | |
1662 | if (preserve.marker != NULL) | |
1663 | bfd_preserve_restore (abfd, &preserve); | |
1664 | return NULL; | |
3af9a47b NC |
1665 | } |
1666 | ||
1667 | typedef struct mach_o_fat_archentry | |
1668 | { | |
1669 | unsigned long cputype; | |
1670 | unsigned long cpusubtype; | |
1671 | unsigned long offset; | |
1672 | unsigned long size; | |
1673 | unsigned long align; | |
1674 | bfd *abfd; | |
1675 | } mach_o_fat_archentry; | |
1676 | ||
1677 | typedef struct mach_o_fat_data_struct | |
1678 | { | |
1679 | unsigned long magic; | |
1680 | unsigned long nfat_arch; | |
1681 | mach_o_fat_archentry *archentries; | |
1682 | } mach_o_fat_data_struct; | |
1683 | ||
1684 | const bfd_target * | |
116c20d2 | 1685 | bfd_mach_o_archive_p (bfd *abfd) |
3af9a47b | 1686 | { |
e84d6fca | 1687 | mach_o_fat_data_struct *adata = NULL; |
3af9a47b NC |
1688 | unsigned char buf[20]; |
1689 | unsigned long i; | |
1690 | ||
1691 | bfd_seek (abfd, 0, SEEK_SET); | |
1692 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
e84d6fca | 1693 | goto error; |
3af9a47b | 1694 | |
116c20d2 | 1695 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 1696 | if (adata == NULL) |
e84d6fca | 1697 | goto error; |
a95a4550 | 1698 | |
3af9a47b NC |
1699 | adata->magic = bfd_getb32 (buf); |
1700 | adata->nfat_arch = bfd_getb32 (buf + 4); | |
1701 | if (adata->magic != 0xcafebabe) | |
e84d6fca | 1702 | goto error; |
3af9a47b | 1703 | |
116c20d2 | 1704 | adata->archentries = |
3af9a47b NC |
1705 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
1706 | if (adata->archentries == NULL) | |
e84d6fca | 1707 | goto error; |
3af9a47b NC |
1708 | |
1709 | for (i = 0; i < adata->nfat_arch; i++) | |
1710 | { | |
1711 | bfd_seek (abfd, 8 + 20 * i, SEEK_SET); | |
1712 | ||
1713 | if (bfd_bread ((PTR) buf, 20, abfd) != 20) | |
e84d6fca | 1714 | goto error; |
3af9a47b NC |
1715 | adata->archentries[i].cputype = bfd_getb32 (buf); |
1716 | adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4); | |
1717 | adata->archentries[i].offset = bfd_getb32 (buf + 8); | |
1718 | adata->archentries[i].size = bfd_getb32 (buf + 12); | |
1719 | adata->archentries[i].align = bfd_getb32 (buf + 16); | |
1720 | adata->archentries[i].abfd = NULL; | |
1721 | } | |
1722 | ||
1723 | abfd->tdata.mach_o_fat_data = adata; | |
1724 | return abfd->xvec; | |
e84d6fca AM |
1725 | |
1726 | error: | |
1727 | if (adata != NULL) | |
1728 | bfd_release (abfd, adata); | |
1729 | bfd_set_error (bfd_error_wrong_format); | |
1730 | return NULL; | |
3af9a47b NC |
1731 | } |
1732 | ||
1733 | bfd * | |
116c20d2 | 1734 | bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 1735 | { |
e84d6fca | 1736 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
1737 | mach_o_fat_archentry *entry = NULL; |
1738 | unsigned long i; | |
1739 | ||
e84d6fca | 1740 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
1741 | BFD_ASSERT (adata != NULL); |
1742 | ||
1743 | /* Find index of previous entry. */ | |
1744 | if (prev == NULL) | |
1745 | i = 0; /* Start at first one. */ | |
1746 | else | |
1747 | { | |
1748 | for (i = 0; i < adata->nfat_arch; i++) | |
1749 | { | |
1750 | if (adata->archentries[i].abfd == prev) | |
1751 | break; | |
1752 | } | |
1753 | ||
1754 | if (i == adata->nfat_arch) | |
1755 | { | |
1756 | /* Not found. */ | |
1757 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 1758 | return NULL; |
3af9a47b NC |
1759 | } |
1760 | i++; /* Get next entry. */ | |
1761 | } | |
a95a4550 | 1762 | |
3af9a47b NC |
1763 | if (i >= adata->nfat_arch) |
1764 | { | |
1765 | bfd_set_error (bfd_error_no_more_archived_files); | |
1766 | return NULL; | |
1767 | } | |
1768 | ||
1769 | entry = &adata->archentries[i]; | |
1770 | if (entry->abfd == NULL) | |
1771 | { | |
1772 | bfd *nbfd = _bfd_new_bfd_contained_in (archive); | |
1773 | char *s = NULL; | |
1774 | ||
1775 | if (nbfd == NULL) | |
1776 | return NULL; | |
1777 | ||
1778 | nbfd->origin = entry->offset; | |
1779 | s = bfd_malloc (strlen (archive->filename) + 1); | |
1780 | if (s == NULL) | |
1781 | return NULL; | |
1782 | strcpy (s, archive->filename); | |
1783 | nbfd->filename = s; | |
1784 | nbfd->iostream = NULL; | |
1785 | entry->abfd = nbfd; | |
1786 | } | |
1787 | ||
1788 | return entry->abfd; | |
1789 | } | |
1790 | ||
e84d6fca | 1791 | int |
116c20d2 NC |
1792 | bfd_mach_o_lookup_section (bfd *abfd, |
1793 | asection *section, | |
1794 | bfd_mach_o_load_command **mcommand, | |
1795 | bfd_mach_o_section **msection) | |
3af9a47b NC |
1796 | { |
1797 | struct mach_o_data_struct *md = abfd->tdata.mach_o_data; | |
1798 | unsigned int i, j, num; | |
1799 | ||
1800 | bfd_mach_o_load_command *ncmd = NULL; | |
1801 | bfd_mach_o_section *nsect = NULL; | |
1802 | ||
1803 | BFD_ASSERT (mcommand != NULL); | |
1804 | BFD_ASSERT (msection != NULL); | |
1805 | ||
1806 | num = 0; | |
1807 | for (i = 0; i < md->header.ncmds; i++) | |
1808 | { | |
1809 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
1810 | struct bfd_mach_o_segment_command *seg = NULL; | |
1811 | ||
1812 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) | |
1813 | continue; | |
1814 | seg = &cmd->command.segment; | |
a95a4550 | 1815 | |
3af9a47b NC |
1816 | if (seg->segment == section) |
1817 | { | |
1818 | if (num == 0) | |
1819 | ncmd = cmd; | |
1820 | num++; | |
1821 | } | |
1822 | ||
1823 | for (j = 0; j < seg->nsects; j++) | |
1824 | { | |
1825 | struct bfd_mach_o_section *sect = &seg->sections[j]; | |
1826 | ||
1827 | if (sect->bfdsection == section) | |
1828 | { | |
1829 | if (num == 0) | |
1830 | nsect = sect; | |
1831 | num++; | |
1832 | } | |
1833 | } | |
1834 | } | |
a95a4550 | 1835 | |
3af9a47b NC |
1836 | *mcommand = ncmd; |
1837 | *msection = nsect; | |
1838 | return num; | |
1839 | } | |
1840 | ||
1841 | int | |
116c20d2 NC |
1842 | bfd_mach_o_lookup_command (bfd *abfd, |
1843 | bfd_mach_o_load_command_type type, | |
1844 | bfd_mach_o_load_command **mcommand) | |
3af9a47b NC |
1845 | { |
1846 | struct mach_o_data_struct *md = NULL; | |
1847 | bfd_mach_o_load_command *ncmd = NULL; | |
1848 | unsigned int i, num; | |
1849 | ||
1850 | md = abfd->tdata.mach_o_data; | |
1851 | ||
1852 | BFD_ASSERT (md != NULL); | |
1853 | BFD_ASSERT (mcommand != NULL); | |
1854 | ||
1855 | num = 0; | |
1856 | for (i = 0; i < md->header.ncmds; i++) | |
1857 | { | |
1858 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
1859 | ||
1860 | if (cmd->type != type) | |
1861 | continue; | |
1862 | ||
1863 | if (num == 0) | |
1864 | ncmd = cmd; | |
1865 | num++; | |
1866 | } | |
1867 | ||
1868 | *mcommand = ncmd; | |
1869 | return num; | |
1870 | } | |
1871 | ||
1872 | unsigned long | |
116c20d2 | 1873 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
1874 | { |
1875 | switch (type) | |
1876 | { | |
1877 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1878 | return 0x04000000; | |
1879 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
1880 | return 0xffffe000; | |
1881 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1882 | return 0xc0000000; | |
1883 | case BFD_MACH_O_CPU_TYPE_I386: | |
1884 | return 0xc0000000; | |
1885 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
1886 | return 0xf0000000; | |
1887 | case BFD_MACH_O_CPU_TYPE_I860: | |
1888 | return 0; | |
1889 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
e84d6fca | 1890 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
1891 | default: |
1892 | return 0; | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | int | |
116c20d2 NC |
1897 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
1898 | unsigned char **rbuf, | |
1899 | unsigned int *rlen) | |
3af9a47b NC |
1900 | { |
1901 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
1902 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); | |
1903 | unsigned int i = 0; | |
1904 | ||
1905 | for (i = 0; i < mdata->header.ncmds; i++) | |
1906 | { | |
1907 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
1908 | bfd_mach_o_segment_command *seg = NULL; | |
1909 | ||
1910 | if (cur->type != BFD_MACH_O_LC_SEGMENT) | |
1911 | continue; | |
1912 | ||
1913 | seg = &cur->command.segment; | |
1914 | ||
1915 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
1916 | { | |
1917 | unsigned long start = seg->fileoff; | |
1918 | unsigned long end = seg->fileoff + seg->filesize; | |
1919 | unsigned char *buf = bfd_malloc (1024); | |
1920 | unsigned long size = 1024; | |
1921 | ||
1922 | for (;;) | |
1923 | { | |
1924 | bfd_size_type nread = 0; | |
1925 | unsigned long offset; | |
1926 | int found_nonnull = 0; | |
1927 | ||
1928 | if (size > (end - start)) | |
1929 | size = (end - start); | |
1930 | ||
1931 | buf = bfd_realloc (buf, size); | |
1932 | ||
1933 | bfd_seek (abfd, end - size, SEEK_SET); | |
1934 | nread = bfd_bread (buf, size, abfd); | |
a95a4550 | 1935 | |
3af9a47b NC |
1936 | if (nread != size) |
1937 | return -1; | |
a95a4550 | 1938 | |
3af9a47b NC |
1939 | for (offset = 4; offset <= size; offset += 4) |
1940 | { | |
e84d6fca | 1941 | unsigned long val; |
3af9a47b | 1942 | |
e84d6fca | 1943 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
1944 | if (! found_nonnull) |
1945 | { | |
1946 | if (val != 0) | |
1947 | found_nonnull = 1; | |
1948 | } | |
1949 | else if (val == 0x0) | |
1950 | { | |
e84d6fca AM |
1951 | unsigned long bottom; |
1952 | unsigned long top; | |
3af9a47b | 1953 | |
e84d6fca AM |
1954 | bottom = seg->fileoff + seg->filesize - offset; |
1955 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
1956 | *rbuf = bfd_malloc (top - bottom); |
1957 | *rlen = top - bottom; | |
1958 | ||
1959 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
1960 | return 0; | |
1961 | } | |
1962 | } | |
1963 | ||
1964 | if (size == (end - start)) | |
1965 | break; | |
1966 | ||
1967 | size *= 2; | |
1968 | } | |
1969 | } | |
1970 | } | |
1971 | ||
1972 | return -1; | |
1973 | } | |
1974 | ||
1975 | char * | |
116c20d2 | 1976 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
1977 | { |
1978 | unsigned char *buf = NULL; | |
1979 | unsigned int len = 0; | |
1980 | int ret = -1; | |
1981 | ||
1982 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
1983 | if (ret < 0) | |
1984 | return NULL; | |
1985 | ||
f075ee0c | 1986 | return (char *) buf; |
3af9a47b NC |
1987 | } |
1988 | ||
1989 | int | |
116c20d2 | 1990 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
1991 | { |
1992 | return 0; | |
1993 | } | |
1994 | ||
b34976b6 | 1995 | bfd_boolean |
116c20d2 NC |
1996 | bfd_mach_o_core_file_matches_executable_p (bfd *core_bfd ATTRIBUTE_UNUSED, |
1997 | bfd *exec_bfd ATTRIBUTE_UNUSED) | |
3af9a47b | 1998 | { |
b34976b6 | 1999 | return TRUE; |
3af9a47b NC |
2000 | } |
2001 | ||
116c20d2 NC |
2002 | #define TARGET_NAME mach_o_be_vec |
2003 | #define TARGET_STRING "mach-o-be" | |
2004 | #define TARGET_BIG_ENDIAN 1 | |
2005 | #define TARGET_ARCHIVE 0 | |
3af9a47b NC |
2006 | |
2007 | #include "mach-o-target.c" | |
2008 | ||
2009 | #undef TARGET_NAME | |
2010 | #undef TARGET_STRING | |
2011 | #undef TARGET_BIG_ENDIAN | |
2012 | #undef TARGET_ARCHIVE | |
2013 | ||
116c20d2 NC |
2014 | #define TARGET_NAME mach_o_le_vec |
2015 | #define TARGET_STRING "mach-o-le" | |
2016 | #define TARGET_BIG_ENDIAN 0 | |
2017 | #define TARGET_ARCHIVE 0 | |
3af9a47b NC |
2018 | |
2019 | #include "mach-o-target.c" | |
2020 | ||
2021 | #undef TARGET_NAME | |
2022 | #undef TARGET_STRING | |
2023 | #undef TARGET_BIG_ENDIAN | |
2024 | #undef TARGET_ARCHIVE | |
2025 | ||
116c20d2 NC |
2026 | #define TARGET_NAME mach_o_fat_vec |
2027 | #define TARGET_STRING "mach-o-fat" | |
2028 | #define TARGET_BIG_ENDIAN 1 | |
2029 | #define TARGET_ARCHIVE 1 | |
3af9a47b NC |
2030 | |
2031 | #include "mach-o-target.c" | |
2032 | ||
2033 | #undef TARGET_NAME | |
2034 | #undef TARGET_STRING | |
2035 | #undef TARGET_BIG_ENDIAN | |
2036 | #undef TARGET_ARCHIVE |