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 | |
4ab527b0 | 51 | #define bfd_mach_o_find_inliner_info _bfd_nosymbols_find_inliner_info |
116c20d2 NC |
52 | #define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
53 | #define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols | |
54 | #define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
55 | #define bfd_mach_o_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound | |
56 | #define bfd_mach_o_canonicalize_reloc _bfd_norelocs_canonicalize_reloc | |
57 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup | |
3af9a47b | 58 | #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
116c20d2 NC |
59 | #define bfd_mach_o_bfd_relax_section bfd_generic_relax_section |
60 | #define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
61 | #define bfd_mach_o_bfd_link_hash_table_free _bfd_generic_link_hash_table_free | |
62 | #define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
63 | #define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms | |
64 | #define bfd_mach_o_bfd_final_link _bfd_generic_final_link | |
65 | #define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section | |
66 | #define bfd_mach_o_set_arch_mach bfd_default_set_arch_mach | |
67 | #define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
68 | #define bfd_mach_o_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
69 | #define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
70 | #define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents | |
71 | #define bfd_mach_o_set_section_contents _bfd_generic_set_section_contents | |
72 | #define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections | |
73 | #define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections | |
74 | #define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section | |
75 | #define bfd_mach_o_bfd_discard_group bfd_generic_discard_group | |
76 | #define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked | |
77 | #define bfd_mach_o_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data | |
78 | ||
3af9a47b NC |
79 | |
80 | /* The flags field of a section structure is separated into two parts a section | |
81 | type and section attributes. The section types are mutually exclusive (it | |
82 | can only have one type) but the section attributes are not (it may have more | |
83 | than one attribute). */ | |
84 | ||
85 | #define SECTION_TYPE 0x000000ff /* 256 section types. */ | |
86 | #define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */ | |
87 | ||
88 | /* Constants for the section attributes part of the flags field of a section | |
89 | structure. */ | |
90 | ||
91 | #define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */ | |
92 | #define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */ | |
93 | #define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */ | |
94 | #define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */ | |
95 | #define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */ | |
96 | #define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */ | |
97 | ||
98 | #define N_STAB 0xe0 | |
99 | #define N_TYPE 0x1e | |
100 | #define N_EXT 0x01 | |
101 | #define N_UNDF 0x0 | |
102 | #define N_ABS 0x2 | |
103 | #define N_SECT 0xe | |
104 | #define N_INDR 0xa | |
105 | ||
b34976b6 | 106 | bfd_boolean |
116c20d2 | 107 | bfd_mach_o_valid (bfd *abfd) |
3af9a47b NC |
108 | { |
109 | if (abfd == NULL || abfd->xvec == NULL) | |
110 | return 0; | |
111 | ||
112 | if (! ((abfd->xvec == &mach_o_be_vec) | |
113 | || (abfd->xvec == &mach_o_le_vec) | |
114 | || (abfd->xvec == &mach_o_fat_vec))) | |
115 | return 0; | |
116 | ||
117 | if (abfd->tdata.mach_o_data == NULL) | |
118 | return 0; | |
119 | return 1; | |
120 | } | |
121 | ||
122 | /* Copy any private info we understand from the input symbol | |
123 | to the output symbol. */ | |
124 | ||
b34976b6 | 125 | static bfd_boolean |
116c20d2 NC |
126 | bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, |
127 | asymbol *isymbol ATTRIBUTE_UNUSED, | |
128 | bfd *obfd ATTRIBUTE_UNUSED, | |
129 | asymbol *osymbol ATTRIBUTE_UNUSED) | |
3af9a47b | 130 | { |
b34976b6 | 131 | return TRUE; |
3af9a47b NC |
132 | } |
133 | ||
134 | /* Copy any private info we understand from the input section | |
135 | to the output section. */ | |
136 | ||
b34976b6 | 137 | static bfd_boolean |
116c20d2 NC |
138 | bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
139 | asection *isection ATTRIBUTE_UNUSED, | |
140 | bfd *obfd ATTRIBUTE_UNUSED, | |
141 | asection *osection ATTRIBUTE_UNUSED) | |
3af9a47b | 142 | { |
b34976b6 | 143 | return TRUE; |
3af9a47b NC |
144 | } |
145 | ||
146 | /* Copy any private info we understand from the input bfd | |
147 | to the output bfd. */ | |
148 | ||
b34976b6 | 149 | static bfd_boolean |
116c20d2 | 150 | bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3af9a47b NC |
151 | { |
152 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); | |
153 | BFD_ASSERT (bfd_mach_o_valid (obfd)); | |
154 | ||
155 | obfd->tdata.mach_o_data = ibfd->tdata.mach_o_data; | |
156 | obfd->tdata.mach_o_data->ibfd = ibfd; | |
b34976b6 | 157 | return TRUE; |
3af9a47b NC |
158 | } |
159 | ||
160 | static long | |
116c20d2 | 161 | bfd_mach_o_count_symbols (bfd *abfd) |
3af9a47b NC |
162 | { |
163 | bfd_mach_o_data_struct *mdata = NULL; | |
164 | long nsyms = 0; | |
165 | unsigned long i; | |
a95a4550 | 166 | |
3af9a47b NC |
167 | BFD_ASSERT (bfd_mach_o_valid (abfd)); |
168 | mdata = abfd->tdata.mach_o_data; | |
169 | ||
170 | for (i = 0; i < mdata->header.ncmds; i++) | |
171 | if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) | |
172 | { | |
173 | bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; | |
174 | nsyms += sym->nsyms; | |
175 | } | |
176 | ||
177 | return nsyms; | |
178 | } | |
179 | ||
180 | static long | |
116c20d2 | 181 | bfd_mach_o_get_symtab_upper_bound (bfd *abfd) |
3af9a47b NC |
182 | { |
183 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
184 | ||
185 | if (nsyms < 0) | |
186 | return nsyms; | |
187 | ||
188 | return ((nsyms + 1) * sizeof (asymbol *)); | |
189 | } | |
190 | ||
191 | static long | |
116c20d2 | 192 | bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3af9a47b NC |
193 | { |
194 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
195 | long nsyms = bfd_mach_o_count_symbols (abfd); | |
196 | asymbol **csym = alocation; | |
197 | unsigned long i, j; | |
198 | ||
199 | if (nsyms < 0) | |
200 | return nsyms; | |
201 | ||
202 | for (i = 0; i < mdata->header.ncmds; i++) | |
203 | { | |
204 | if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) | |
205 | { | |
206 | bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; | |
207 | ||
208 | if (bfd_mach_o_scan_read_symtab_symbols (abfd, &mdata->commands[i].command.symtab) != 0) | |
209 | { | |
6cee3f79 | 210 | fprintf (stderr, "bfd_mach_o_canonicalize_symtab: unable to load symbols for section %lu\n", i); |
3af9a47b NC |
211 | return 0; |
212 | } | |
213 | ||
214 | BFD_ASSERT (sym->symbols != NULL); | |
215 | ||
216 | for (j = 0; j < sym->nsyms; j++) | |
217 | { | |
218 | BFD_ASSERT (csym < (alocation + nsyms)); | |
219 | *csym++ = &sym->symbols[j]; | |
220 | } | |
221 | } | |
222 | } | |
223 | ||
224 | *csym++ = NULL; | |
a95a4550 | 225 | |
3af9a47b NC |
226 | return nsyms; |
227 | } | |
228 | ||
229 | static void | |
116c20d2 NC |
230 | bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
231 | asymbol *symbol, | |
232 | symbol_info *ret) | |
3af9a47b NC |
233 | { |
234 | bfd_symbol_info (symbol, ret); | |
235 | } | |
236 | ||
237 | static void | |
116c20d2 NC |
238 | bfd_mach_o_print_symbol (bfd *abfd, |
239 | PTR afile, | |
240 | asymbol *symbol, | |
241 | bfd_print_symbol_type how) | |
3af9a47b NC |
242 | { |
243 | FILE *file = (FILE *) afile; | |
244 | ||
245 | switch (how) | |
246 | { | |
247 | case bfd_print_symbol_name: | |
248 | fprintf (file, "%s", symbol->name); | |
249 | break; | |
250 | default: | |
251 | bfd_print_symbol_vandf (abfd, (PTR) file, symbol); | |
252 | fprintf (file, " %-5s %s", symbol->section->name, symbol->name); | |
253 | } | |
254 | } | |
255 | ||
256 | static void | |
116c20d2 NC |
257 | bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, |
258 | bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED, | |
259 | enum bfd_architecture *type, | |
260 | unsigned long *subtype) | |
3af9a47b NC |
261 | { |
262 | *subtype = bfd_arch_unknown; | |
263 | ||
264 | switch (mtype) | |
265 | { | |
266 | case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break; | |
267 | case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break; | |
268 | case BFD_MACH_O_CPU_TYPE_I386: *type = bfd_arch_i386; break; | |
269 | case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break; | |
270 | case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break; | |
271 | case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break; | |
272 | case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break; | |
273 | case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break; | |
274 | case BFD_MACH_O_CPU_TYPE_SPARC: *type = bfd_arch_sparc; break; | |
275 | case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break; | |
276 | case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break; | |
277 | case BFD_MACH_O_CPU_TYPE_POWERPC: *type = bfd_arch_powerpc; break; | |
278 | default: *type = bfd_arch_unknown; break; | |
279 | } | |
280 | ||
281 | switch (*type) | |
282 | { | |
283 | case bfd_arch_i386: *subtype = bfd_mach_i386_i386; break; | |
284 | case bfd_arch_sparc: *subtype = bfd_mach_sparc; break; | |
285 | default: | |
286 | *subtype = bfd_arch_unknown; | |
287 | } | |
288 | } | |
a95a4550 | 289 | |
116c20d2 NC |
290 | static int |
291 | bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) | |
292 | { | |
293 | unsigned char buf[28]; | |
294 | ||
295 | bfd_h_put_32 (abfd, header->magic, buf + 0); | |
296 | bfd_h_put_32 (abfd, header->cputype, buf + 4); | |
297 | bfd_h_put_32 (abfd, header->cpusubtype, buf + 8); | |
298 | bfd_h_put_32 (abfd, header->filetype, buf + 12); | |
299 | bfd_h_put_32 (abfd, header->ncmds, buf + 16); | |
300 | bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20); | |
301 | bfd_h_put_32 (abfd, header->flags, buf + 24); | |
302 | ||
303 | bfd_seek (abfd, 0, SEEK_SET); | |
304 | if (bfd_bwrite ((PTR) buf, 28, abfd) != 28) | |
305 | return -1; | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
310 | static int | |
311 | bfd_mach_o_scan_write_thread (bfd *abfd, | |
312 | bfd_mach_o_load_command *command) | |
313 | { | |
314 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
315 | unsigned int i; | |
316 | unsigned char buf[8]; | |
317 | bfd_vma offset; | |
318 | unsigned int nflavours; | |
319 | ||
320 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
321 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
322 | ||
323 | offset = 8; | |
324 | nflavours = 0; | |
325 | for (i = 0; i < cmd->nflavours; i++) | |
326 | { | |
327 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); | |
328 | BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8)); | |
329 | ||
330 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf); | |
331 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4); | |
332 | ||
333 | bfd_seek (abfd, command->offset + offset, SEEK_SET); | |
334 | if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) | |
335 | return -1; | |
336 | ||
337 | offset += cmd->flavours[i].size + 8; | |
338 | } | |
339 | ||
340 | return 0; | |
341 | } | |
342 | ||
343 | static int | |
344 | bfd_mach_o_scan_write_section (bfd *abfd, | |
345 | bfd_mach_o_section *section, | |
346 | bfd_vma offset) | |
347 | { | |
348 | unsigned char buf[68]; | |
349 | ||
350 | memcpy (buf, section->sectname, 16); | |
351 | memcpy (buf + 16, section->segname, 16); | |
352 | bfd_h_put_32 (abfd, section->addr, buf + 32); | |
353 | bfd_h_put_32 (abfd, section->size, buf + 36); | |
354 | bfd_h_put_32 (abfd, section->offset, buf + 40); | |
355 | bfd_h_put_32 (abfd, section->align, buf + 44); | |
356 | bfd_h_put_32 (abfd, section->reloff, buf + 48); | |
357 | bfd_h_put_32 (abfd, section->nreloc, buf + 52); | |
358 | bfd_h_put_32 (abfd, section->flags, buf + 56); | |
359 | /* bfd_h_put_32 (abfd, section->reserved1, buf + 60); */ | |
360 | /* bfd_h_put_32 (abfd, section->reserved2, buf + 64); */ | |
361 | ||
362 | bfd_seek (abfd, offset, SEEK_SET); | |
363 | if (bfd_bwrite ((PTR) buf, 68, abfd) != 68) | |
364 | return -1; | |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
369 | static int | |
370 | bfd_mach_o_scan_write_segment (bfd *abfd, bfd_mach_o_load_command *command) | |
371 | { | |
372 | unsigned char buf[48]; | |
373 | bfd_mach_o_segment_command *seg = &command->command.segment; | |
374 | unsigned long i; | |
375 | ||
376 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); | |
377 | ||
378 | memcpy (buf, seg->segname, 16); | |
379 | bfd_h_put_32 (abfd, seg->vmaddr, buf + 16); | |
380 | bfd_h_put_32 (abfd, seg->vmsize, buf + 20); | |
381 | bfd_h_put_32 (abfd, seg->fileoff, buf + 24); | |
382 | bfd_h_put_32 (abfd, seg->filesize, buf + 28); | |
383 | bfd_h_put_32 (abfd, 0 /* seg->maxprot */, buf + 32); | |
384 | bfd_h_put_32 (abfd, 0 /* seg->initprot */, buf + 36); | |
385 | bfd_h_put_32 (abfd, seg->nsects, buf + 40); | |
386 | bfd_h_put_32 (abfd, seg->flags, buf + 44); | |
387 | ||
388 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
389 | if (bfd_bwrite ((PTR) buf, 48, abfd) != 48) | |
390 | return -1; | |
391 | ||
392 | { | |
393 | char buf[1024]; | |
394 | bfd_vma nbytes = seg->filesize; | |
395 | bfd_vma curoff = seg->fileoff; | |
396 | ||
397 | while (nbytes > 0) | |
398 | { | |
399 | bfd_vma thisread = nbytes; | |
400 | ||
401 | if (thisread > 1024) | |
402 | thisread = 1024; | |
403 | ||
404 | bfd_seek (abfd, curoff, SEEK_SET); | |
405 | if (bfd_bread ((PTR) buf, thisread, abfd) != thisread) | |
406 | return -1; | |
407 | ||
408 | bfd_seek (abfd, curoff, SEEK_SET); | |
409 | if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread) | |
410 | return -1; | |
411 | ||
412 | nbytes -= thisread; | |
413 | curoff += thisread; | |
414 | } | |
415 | } | |
416 | ||
417 | for (i = 0; i < seg->nsects; i++) | |
418 | { | |
419 | bfd_vma segoff = command->offset + 48 + 8 + (i * 68); | |
420 | ||
421 | if (bfd_mach_o_scan_write_section (abfd, &seg->sections[i], segoff) != 0) | |
422 | return -1; | |
423 | } | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
428 | static int | |
429 | bfd_mach_o_scan_write_symtab_symbols (bfd *abfd, | |
430 | bfd_mach_o_load_command *command) | |
431 | { | |
432 | bfd_mach_o_symtab_command *sym = &command->command.symtab; | |
433 | asymbol *s = NULL; | |
434 | unsigned long i; | |
435 | ||
436 | for (i = 0; i < sym->nsyms; i++) | |
437 | { | |
438 | unsigned char buf[12]; | |
439 | bfd_vma symoff = sym->symoff + (i * 12); | |
440 | unsigned char ntype = 0; | |
441 | unsigned char nsect = 0; | |
442 | short ndesc = 0; | |
443 | ||
444 | s = &sym->symbols[i]; | |
445 | ||
446 | /* Instead just set from the stored values. */ | |
447 | ntype = (s->udata.i >> 24) & 0xff; | |
448 | nsect = (s->udata.i >> 16) & 0xff; | |
449 | ndesc = s->udata.i & 0xffff; | |
450 | ||
451 | bfd_h_put_32 (abfd, s->name - sym->strtab, buf); | |
452 | bfd_h_put_8 (abfd, ntype, buf + 4); | |
453 | bfd_h_put_8 (abfd, nsect, buf + 5); | |
454 | bfd_h_put_16 (abfd, ndesc, buf + 6); | |
455 | bfd_h_put_32 (abfd, s->section->vma + s->value, buf + 8); | |
456 | ||
457 | bfd_seek (abfd, symoff, SEEK_SET); | |
458 | if (bfd_bwrite ((PTR) buf, 12, abfd) != 12) | |
459 | { | |
460 | fprintf (stderr, "bfd_mach_o_scan_write_symtab_symbols: unable to write %d bytes at %lu\n", | |
461 | 12, (unsigned long) symoff); | |
462 | return -1; | |
463 | } | |
464 | } | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
469 | static int | |
470 | bfd_mach_o_scan_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) | |
471 | { | |
472 | bfd_mach_o_symtab_command *seg = &command->command.symtab; | |
473 | unsigned char buf[16]; | |
474 | ||
475 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
476 | ||
477 | bfd_h_put_32 (abfd, seg->symoff, buf); | |
478 | bfd_h_put_32 (abfd, seg->nsyms, buf + 4); | |
479 | bfd_h_put_32 (abfd, seg->stroff, buf + 8); | |
480 | bfd_h_put_32 (abfd, seg->strsize, buf + 12); | |
481 | ||
482 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
483 | if (bfd_bwrite ((PTR) buf, 16, abfd) != 16) | |
484 | return -1; | |
485 | ||
486 | if (bfd_mach_o_scan_write_symtab_symbols (abfd, command) != 0) | |
487 | return -1; | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
b34976b6 | 492 | static bfd_boolean |
116c20d2 | 493 | bfd_mach_o_write_contents (bfd *abfd) |
3af9a47b NC |
494 | { |
495 | unsigned int i; | |
496 | asection *s; | |
497 | ||
498 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
499 | ||
500 | /* Write data sections first in case they overlap header data to be | |
501 | written later. */ | |
502 | ||
503 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) | |
504 | ; | |
505 | ||
3af9a47b NC |
506 | /* Now write header information. */ |
507 | if (bfd_mach_o_write_header (abfd, &mdata->header) != 0) | |
b34976b6 | 508 | return FALSE; |
3af9a47b NC |
509 | |
510 | for (i = 0; i < mdata->header.ncmds; i++) | |
511 | { | |
512 | unsigned char buf[8]; | |
513 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
514 | unsigned long typeflag; | |
515 | ||
516 | typeflag = cur->type_required ? cur->type & BFD_MACH_O_LC_REQ_DYLD : cur->type; | |
517 | ||
518 | bfd_h_put_32 (abfd, typeflag, buf); | |
519 | bfd_h_put_32 (abfd, cur->len, buf + 4); | |
520 | ||
521 | bfd_seek (abfd, cur->offset, SEEK_SET); | |
522 | if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) | |
b34976b6 | 523 | return FALSE; |
3af9a47b NC |
524 | |
525 | switch (cur->type) | |
526 | { | |
527 | case BFD_MACH_O_LC_SEGMENT: | |
528 | if (bfd_mach_o_scan_write_segment (abfd, cur) != 0) | |
b34976b6 | 529 | return FALSE; |
3af9a47b NC |
530 | break; |
531 | case BFD_MACH_O_LC_SYMTAB: | |
532 | if (bfd_mach_o_scan_write_symtab (abfd, cur) != 0) | |
b34976b6 | 533 | return FALSE; |
3af9a47b NC |
534 | break; |
535 | case BFD_MACH_O_LC_SYMSEG: | |
536 | break; | |
537 | case BFD_MACH_O_LC_THREAD: | |
538 | case BFD_MACH_O_LC_UNIXTHREAD: | |
539 | if (bfd_mach_o_scan_write_thread (abfd, cur) != 0) | |
b34976b6 | 540 | return FALSE; |
3af9a47b NC |
541 | break; |
542 | case BFD_MACH_O_LC_LOADFVMLIB: | |
543 | case BFD_MACH_O_LC_IDFVMLIB: | |
544 | case BFD_MACH_O_LC_IDENT: | |
545 | case BFD_MACH_O_LC_FVMFILE: | |
546 | case BFD_MACH_O_LC_PREPAGE: | |
547 | case BFD_MACH_O_LC_DYSYMTAB: | |
548 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
549 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
550 | case BFD_MACH_O_LC_ID_DYLIB: | |
551 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
552 | case BFD_MACH_O_LC_ID_DYLINKER: | |
553 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
554 | case BFD_MACH_O_LC_ROUTINES: | |
555 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
556 | break; | |
557 | default: | |
558 | fprintf (stderr, | |
559 | "unable to write unknown load command 0x%lx\n", | |
560 | (long) cur->type); | |
b34976b6 | 561 | return FALSE; |
3af9a47b NC |
562 | } |
563 | } | |
564 | ||
b34976b6 | 565 | return TRUE; |
3af9a47b NC |
566 | } |
567 | ||
568 | static int | |
116c20d2 NC |
569 | bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, |
570 | bfd_boolean b ATTRIBUTE_UNUSED) | |
3af9a47b NC |
571 | { |
572 | return 0; | |
573 | } | |
574 | ||
575 | /* Make an empty symbol. This is required only because | |
576 | bfd_make_section_anyway wants to create a symbol for the section. */ | |
577 | ||
578 | static asymbol * | |
116c20d2 | 579 | bfd_mach_o_make_empty_symbol (bfd *abfd) |
3af9a47b NC |
580 | { |
581 | asymbol *new; | |
582 | ||
116c20d2 | 583 | new = bfd_zalloc (abfd, sizeof (* new)); |
3af9a47b NC |
584 | if (new == NULL) |
585 | return new; | |
586 | new->the_bfd = abfd; | |
587 | return new; | |
588 | } | |
589 | ||
590 | static int | |
116c20d2 | 591 | bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) |
3af9a47b NC |
592 | { |
593 | unsigned char buf[28]; | |
edeb6e24 | 594 | bfd_vma (*get32) (const void *) = NULL; |
3af9a47b NC |
595 | |
596 | bfd_seek (abfd, 0, SEEK_SET); | |
597 | ||
598 | if (bfd_bread ((PTR) buf, 28, abfd) != 28) | |
599 | return -1; | |
600 | ||
601 | if (bfd_getb32 (buf) == 0xfeedface) | |
602 | { | |
603 | header->byteorder = BFD_ENDIAN_BIG; | |
604 | header->magic = 0xfeedface; | |
605 | get32 = bfd_getb32; | |
606 | } | |
607 | else if (bfd_getl32 (buf) == 0xfeedface) | |
608 | { | |
a95a4550 | 609 | header->byteorder = BFD_ENDIAN_LITTLE; |
3af9a47b NC |
610 | header->magic = 0xfeedface; |
611 | get32 = bfd_getl32; | |
612 | } | |
613 | else | |
614 | { | |
615 | header->byteorder = BFD_ENDIAN_UNKNOWN; | |
616 | return -1; | |
617 | } | |
a95a4550 | 618 | |
3af9a47b NC |
619 | header->cputype = (*get32) (buf + 4); |
620 | header->cpusubtype = (*get32) (buf + 8); | |
621 | header->filetype = (*get32) (buf + 12); | |
622 | header->ncmds = (*get32) (buf + 16); | |
623 | header->sizeofcmds = (*get32) (buf + 20); | |
624 | header->flags = (*get32) (buf + 24); | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
629 | static asection * | |
116c20d2 | 630 | bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section) |
3af9a47b NC |
631 | { |
632 | asection *bfdsec; | |
633 | char *sname; | |
634 | const char *prefix = "LC_SEGMENT"; | |
635 | unsigned int snamelen; | |
636 | ||
637 | snamelen = strlen (prefix) + 1 | |
638 | + strlen (section->segname) + 1 | |
639 | + strlen (section->sectname) + 1; | |
640 | ||
116c20d2 | 641 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
642 | if (sname == NULL) |
643 | return NULL; | |
644 | sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname); | |
645 | ||
646 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
647 | if (bfdsec == NULL) | |
648 | return NULL; | |
a95a4550 | 649 | |
3af9a47b NC |
650 | bfdsec->vma = section->addr; |
651 | bfdsec->lma = section->addr; | |
eea6121a | 652 | bfdsec->size = section->size; |
3af9a47b NC |
653 | bfdsec->filepos = section->offset; |
654 | bfdsec->alignment_power = section->align; | |
655 | ||
656 | if (section->flags & BFD_MACH_O_S_ZEROFILL) | |
657 | bfdsec->flags = SEC_ALLOC; | |
658 | else | |
659 | bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; | |
660 | ||
661 | return bfdsec; | |
662 | } | |
663 | ||
664 | static int | |
116c20d2 NC |
665 | bfd_mach_o_scan_read_section (bfd *abfd, |
666 | bfd_mach_o_section *section, | |
667 | bfd_vma offset) | |
3af9a47b NC |
668 | { |
669 | unsigned char buf[68]; | |
670 | ||
671 | bfd_seek (abfd, offset, SEEK_SET); | |
672 | if (bfd_bread ((PTR) buf, 68, abfd) != 68) | |
673 | return -1; | |
a95a4550 | 674 | |
3af9a47b NC |
675 | memcpy (section->sectname, buf, 16); |
676 | section->sectname[16] = '\0'; | |
677 | memcpy (section->segname, buf + 16, 16); | |
678 | section->segname[16] = '\0'; | |
679 | section->addr = bfd_h_get_32 (abfd, buf + 32); | |
680 | section->size = bfd_h_get_32 (abfd, buf + 36); | |
681 | section->offset = bfd_h_get_32 (abfd, buf + 40); | |
682 | section->align = bfd_h_get_32 (abfd, buf + 44); | |
683 | section->reloff = bfd_h_get_32 (abfd, buf + 48); | |
684 | section->nreloc = bfd_h_get_32 (abfd, buf + 52); | |
685 | section->flags = bfd_h_get_32 (abfd, buf + 56); | |
686 | section->reserved1 = bfd_h_get_32 (abfd, buf + 60); | |
687 | section->reserved2 = bfd_h_get_32 (abfd, buf + 64); | |
688 | section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section); | |
689 | ||
690 | if (section->bfdsection == NULL) | |
691 | return -1; | |
692 | ||
693 | return 0; | |
694 | } | |
695 | ||
3af9a47b | 696 | int |
116c20d2 NC |
697 | bfd_mach_o_scan_read_symtab_symbol (bfd *abfd, |
698 | bfd_mach_o_symtab_command *sym, | |
699 | asymbol *s, | |
700 | unsigned long i) | |
3af9a47b NC |
701 | { |
702 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
703 | bfd_vma symoff = sym->symoff + (i * 12); | |
704 | unsigned char buf[12]; | |
705 | unsigned char type = -1; | |
706 | unsigned char section = -1; | |
707 | short desc = -1; | |
e84d6fca | 708 | unsigned long value = -1; |
3af9a47b NC |
709 | unsigned long stroff = -1; |
710 | unsigned int symtype = -1; | |
711 | ||
712 | BFD_ASSERT (sym->strtab != NULL); | |
713 | ||
714 | bfd_seek (abfd, symoff, SEEK_SET); | |
715 | if (bfd_bread ((PTR) buf, 12, abfd) != 12) | |
716 | { | |
717 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n", | |
718 | 12, (unsigned long) symoff); | |
719 | return -1; | |
720 | } | |
721 | ||
722 | stroff = bfd_h_get_32 (abfd, buf); | |
723 | type = bfd_h_get_8 (abfd, buf + 4); | |
724 | symtype = (type & 0x0e); | |
725 | section = bfd_h_get_8 (abfd, buf + 5) - 1; | |
726 | desc = bfd_h_get_16 (abfd, buf + 6); | |
727 | value = bfd_h_get_32 (abfd, buf + 8); | |
728 | ||
729 | if (stroff >= sym->strsize) | |
730 | { | |
731 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n", | |
732 | (unsigned long) stroff, (unsigned long) sym->strsize); | |
a95a4550 | 733 | return -1; |
3af9a47b NC |
734 | } |
735 | ||
736 | s->the_bfd = abfd; | |
737 | s->name = sym->strtab + stroff; | |
738 | s->value = value; | |
739 | s->udata.i = (type << 24) | (section << 16) | desc; | |
740 | s->flags = 0x0; | |
741 | ||
742 | if (type & BFD_MACH_O_N_STAB) | |
743 | { | |
744 | s->flags |= BSF_DEBUGGING; | |
745 | s->section = bfd_und_section_ptr; | |
746 | } | |
747 | else | |
748 | { | |
749 | if (type & BFD_MACH_O_N_PEXT) | |
750 | { | |
751 | type &= ~BFD_MACH_O_N_PEXT; | |
752 | s->flags |= BSF_GLOBAL; | |
753 | } | |
754 | ||
755 | if (type & BFD_MACH_O_N_EXT) | |
756 | { | |
757 | type &= ~BFD_MACH_O_N_EXT; | |
758 | s->flags |= BSF_GLOBAL; | |
759 | } | |
760 | ||
761 | switch (symtype) | |
762 | { | |
763 | case BFD_MACH_O_N_UNDF: | |
764 | s->section = bfd_und_section_ptr; | |
765 | break; | |
766 | case BFD_MACH_O_N_PBUD: | |
767 | s->section = bfd_und_section_ptr; | |
768 | break; | |
769 | case BFD_MACH_O_N_ABS: | |
770 | s->section = bfd_abs_section_ptr; | |
771 | break; | |
772 | case BFD_MACH_O_N_SECT: | |
773 | if ((section > 0) && (section <= mdata->nsects)) | |
774 | { | |
775 | s->section = mdata->sections[section - 1]->bfdsection; | |
776 | s->value = s->value - mdata->sections[section - 1]->addr; | |
777 | } | |
778 | else | |
779 | { | |
780 | /* Mach-O uses 0 to mean "no section"; not an error. */ | |
781 | if (section != 0) | |
782 | { | |
783 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " | |
a95a4550 | 784 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n", |
3af9a47b NC |
785 | s->name, section, mdata->nsects); |
786 | } | |
787 | s->section = bfd_und_section_ptr; | |
788 | } | |
789 | break; | |
790 | case BFD_MACH_O_N_INDR: | |
791 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " | |
a95a4550 | 792 | "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n", |
3af9a47b NC |
793 | s->name); |
794 | s->section = bfd_und_section_ptr; | |
795 | break; | |
796 | default: | |
797 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " | |
a95a4550 | 798 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n", |
3af9a47b NC |
799 | s->name, symtype); |
800 | s->section = bfd_und_section_ptr; | |
801 | break; | |
802 | } | |
803 | } | |
804 | ||
805 | return 0; | |
806 | } | |
807 | ||
808 | int | |
116c20d2 NC |
809 | bfd_mach_o_scan_read_symtab_strtab (bfd *abfd, |
810 | bfd_mach_o_symtab_command *sym) | |
3af9a47b NC |
811 | { |
812 | BFD_ASSERT (sym->strtab == NULL); | |
813 | ||
814 | if (abfd->flags & BFD_IN_MEMORY) | |
815 | { | |
816 | struct bfd_in_memory *b; | |
817 | ||
818 | b = (struct bfd_in_memory *) abfd->iostream; | |
819 | ||
820 | if ((sym->stroff + sym->strsize) > b->size) | |
821 | { | |
822 | bfd_set_error (bfd_error_file_truncated); | |
823 | return -1; | |
824 | } | |
f075ee0c | 825 | sym->strtab = (char *) b->buffer + sym->stroff; |
3af9a47b NC |
826 | return 0; |
827 | } | |
828 | ||
829 | sym->strtab = bfd_alloc (abfd, sym->strsize); | |
830 | if (sym->strtab == NULL) | |
831 | return -1; | |
832 | ||
833 | bfd_seek (abfd, sym->stroff, SEEK_SET); | |
834 | if (bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize) | |
835 | { | |
836 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_strtab: unable to read %lu bytes at %lu\n", | |
837 | sym->strsize, sym->stroff); | |
a95a4550 | 838 | return -1; |
3af9a47b NC |
839 | } |
840 | ||
841 | return 0; | |
842 | } | |
843 | ||
a95a4550 | 844 | int |
116c20d2 NC |
845 | bfd_mach_o_scan_read_symtab_symbols (bfd *abfd, |
846 | bfd_mach_o_symtab_command *sym) | |
3af9a47b NC |
847 | { |
848 | unsigned long i; | |
849 | int ret; | |
850 | ||
851 | BFD_ASSERT (sym->symbols == NULL); | |
852 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (asymbol)); | |
853 | ||
854 | if (sym->symbols == NULL) | |
855 | { | |
856 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n"); | |
a95a4550 | 857 | return -1; |
3af9a47b | 858 | } |
a95a4550 | 859 | |
3af9a47b NC |
860 | ret = bfd_mach_o_scan_read_symtab_strtab (abfd, sym); |
861 | if (ret != 0) | |
862 | return ret; | |
863 | ||
864 | for (i = 0; i < sym->nsyms; i++) | |
865 | { | |
866 | ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i); | |
867 | if (ret != 0) | |
868 | return ret; | |
869 | } | |
a95a4550 | 870 | |
3af9a47b NC |
871 | return 0; |
872 | } | |
873 | ||
874 | int | |
116c20d2 NC |
875 | bfd_mach_o_scan_read_dysymtab_symbol (bfd *abfd, |
876 | bfd_mach_o_dysymtab_command *dysym, | |
877 | bfd_mach_o_symtab_command *sym, | |
878 | asymbol *s, | |
879 | unsigned long i) | |
3af9a47b NC |
880 | { |
881 | unsigned long isymoff = dysym->indirectsymoff + (i * 4); | |
882 | unsigned long symindex; | |
883 | unsigned char buf[4]; | |
884 | ||
885 | BFD_ASSERT (i < dysym->nindirectsyms); | |
a95a4550 | 886 | |
3af9a47b NC |
887 | bfd_seek (abfd, isymoff, SEEK_SET); |
888 | if (bfd_bread ((PTR) buf, 4, abfd) != 4) | |
889 | { | |
890 | fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n", | |
891 | (unsigned long) 4, isymoff); | |
892 | return -1; | |
893 | } | |
894 | symindex = bfd_h_get_32 (abfd, buf); | |
a95a4550 | 895 | |
3af9a47b NC |
896 | return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex); |
897 | } | |
898 | ||
899 | static const char * | |
116c20d2 | 900 | bfd_mach_o_i386_flavour_string (unsigned int flavour) |
3af9a47b NC |
901 | { |
902 | switch ((int) flavour) | |
903 | { | |
904 | case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE"; | |
905 | case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE"; | |
906 | case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE"; | |
907 | case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE"; | |
908 | case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE"; | |
909 | case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE"; | |
910 | case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE"; | |
911 | case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE"; | |
912 | case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE"; | |
913 | case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE"; | |
914 | case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE"; | |
915 | case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE"; | |
916 | default: return "UNKNOWN"; | |
917 | } | |
918 | } | |
919 | ||
920 | static const char * | |
116c20d2 | 921 | bfd_mach_o_ppc_flavour_string (unsigned int flavour) |
3af9a47b NC |
922 | { |
923 | switch ((int) flavour) | |
924 | { | |
925 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; | |
926 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; | |
927 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; | |
928 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; | |
929 | default: return "UNKNOWN"; | |
930 | } | |
931 | } | |
932 | ||
933 | static int | |
116c20d2 NC |
934 | bfd_mach_o_scan_read_dylinker (bfd *abfd, |
935 | bfd_mach_o_load_command *command) | |
3af9a47b NC |
936 | { |
937 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; | |
938 | unsigned char buf[4]; | |
939 | unsigned int nameoff; | |
940 | asection *bfdsec; | |
941 | char *sname; | |
942 | const char *prefix; | |
943 | ||
944 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) | |
945 | || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); | |
946 | ||
947 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
948 | if (bfd_bread ((PTR) buf, 4, abfd) != 4) | |
949 | return -1; | |
950 | ||
951 | nameoff = bfd_h_get_32 (abfd, buf + 0); | |
952 | ||
953 | cmd->name_offset = command->offset + nameoff; | |
954 | cmd->name_len = command->len - nameoff; | |
955 | ||
956 | if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER) | |
957 | prefix = "LC_LOAD_DYLINKER"; | |
958 | else if (command->type == BFD_MACH_O_LC_ID_DYLINKER) | |
959 | prefix = "LC_ID_DYLINKER"; | |
960 | else | |
961 | abort (); | |
962 | ||
116c20d2 | 963 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
964 | if (sname == NULL) |
965 | return -1; | |
966 | strcpy (sname, prefix); | |
967 | ||
968 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
969 | if (bfdsec == NULL) | |
970 | return -1; | |
a95a4550 | 971 | |
3af9a47b NC |
972 | bfdsec->vma = 0; |
973 | bfdsec->lma = 0; | |
eea6121a | 974 | bfdsec->size = command->len - 8; |
3af9a47b NC |
975 | bfdsec->filepos = command->offset + 8; |
976 | bfdsec->alignment_power = 0; | |
977 | bfdsec->flags = SEC_HAS_CONTENTS; | |
978 | ||
979 | cmd->section = bfdsec; | |
980 | ||
981 | return 0; | |
982 | } | |
983 | ||
984 | static int | |
116c20d2 | 985 | bfd_mach_o_scan_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
986 | { |
987 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; | |
988 | unsigned char buf[16]; | |
989 | unsigned int nameoff; | |
990 | asection *bfdsec; | |
991 | char *sname; | |
992 | const char *prefix; | |
993 | ||
994 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLIB) | |
995 | || (command->type == BFD_MACH_O_LC_LOAD_DYLIB) | |
996 | || (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB)); | |
997 | ||
998 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
999 | if (bfd_bread ((PTR) buf, 16, abfd) != 16) | |
1000 | return -1; | |
1001 | ||
1002 | nameoff = bfd_h_get_32 (abfd, buf + 0); | |
1003 | cmd->timestamp = bfd_h_get_32 (abfd, buf + 4); | |
1004 | cmd->current_version = bfd_h_get_32 (abfd, buf + 8); | |
1005 | cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12); | |
1006 | ||
1007 | cmd->name_offset = command->offset + nameoff; | |
1008 | cmd->name_len = command->len - nameoff; | |
1009 | ||
1010 | if (command->type == BFD_MACH_O_LC_LOAD_DYLIB) | |
1011 | prefix = "LC_LOAD_DYLIB"; | |
1012 | else if (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB) | |
1013 | prefix = "LC_LOAD_WEAK_DYLIB"; | |
1014 | else if (command->type == BFD_MACH_O_LC_ID_DYLIB) | |
1015 | prefix = "LC_ID_DYLIB"; | |
1016 | else | |
1017 | abort (); | |
1018 | ||
116c20d2 | 1019 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
1020 | if (sname == NULL) |
1021 | return -1; | |
1022 | strcpy (sname, prefix); | |
1023 | ||
1024 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1025 | if (bfdsec == NULL) | |
1026 | return -1; | |
a95a4550 | 1027 | |
3af9a47b NC |
1028 | bfdsec->vma = 0; |
1029 | bfdsec->lma = 0; | |
eea6121a | 1030 | bfdsec->size = command->len - 8; |
3af9a47b NC |
1031 | bfdsec->filepos = command->offset + 8; |
1032 | bfdsec->alignment_power = 0; | |
1033 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1034 | ||
1035 | cmd->section = bfdsec; | |
1036 | ||
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static int | |
116c20d2 NC |
1041 | bfd_mach_o_scan_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED, |
1042 | bfd_mach_o_load_command *command ATTRIBUTE_UNUSED) | |
3af9a47b NC |
1043 | { |
1044 | /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ | |
1045 | ||
1046 | BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); | |
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static int | |
116c20d2 | 1051 | bfd_mach_o_scan_read_thread (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1052 | { |
1053 | bfd_mach_o_data_struct *mdata = NULL; | |
1054 | bfd_mach_o_thread_command *cmd = &command->command.thread; | |
1055 | unsigned char buf[8]; | |
1056 | bfd_vma offset; | |
1057 | unsigned int nflavours; | |
1058 | unsigned int i; | |
1059 | ||
1060 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) | |
1061 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); | |
1062 | ||
1063 | BFD_ASSERT (bfd_mach_o_valid (abfd)); | |
1064 | mdata = abfd->tdata.mach_o_data; | |
a95a4550 | 1065 | |
3af9a47b NC |
1066 | offset = 8; |
1067 | nflavours = 0; | |
1068 | while (offset != command->len) | |
1069 | { | |
1070 | if (offset >= command->len) | |
1071 | return -1; | |
1072 | ||
1073 | bfd_seek (abfd, command->offset + offset, SEEK_SET); | |
1074 | ||
1075 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
1076 | return -1; | |
1077 | ||
1078 | offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4; | |
1079 | nflavours++; | |
1080 | } | |
1081 | ||
116c20d2 | 1082 | cmd->flavours = bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); |
3af9a47b NC |
1083 | if (cmd->flavours == NULL) |
1084 | return -1; | |
1085 | cmd->nflavours = nflavours; | |
1086 | ||
1087 | offset = 8; | |
1088 | nflavours = 0; | |
1089 | while (offset != command->len) | |
1090 | { | |
1091 | if (offset >= command->len) | |
1092 | return -1; | |
1093 | ||
1094 | if (nflavours >= cmd->nflavours) | |
1095 | return -1; | |
1096 | ||
1097 | bfd_seek (abfd, command->offset + offset, SEEK_SET); | |
1098 | ||
1099 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
1100 | return -1; | |
1101 | ||
1102 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf); | |
1103 | cmd->flavours[nflavours].offset = command->offset + offset + 8; | |
1104 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4; | |
1105 | offset += cmd->flavours[nflavours].size + 8; | |
1106 | nflavours++; | |
1107 | } | |
1108 | ||
1109 | for (i = 0; i < nflavours; i++) | |
1110 | { | |
1111 | asection *bfdsec; | |
1112 | unsigned int snamelen; | |
1113 | char *sname; | |
1114 | const char *flavourstr; | |
1115 | const char *prefix = "LC_THREAD"; | |
a95a4550 AM |
1116 | unsigned int j = 0; |
1117 | ||
3af9a47b NC |
1118 | switch (mdata->header.cputype) |
1119 | { | |
1120 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1121 | flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); | |
1122 | break; | |
1123 | case BFD_MACH_O_CPU_TYPE_I386: | |
1124 | flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); | |
1125 | break; | |
1126 | default: | |
1127 | flavourstr = "UNKNOWN_ARCHITECTURE"; | |
1128 | break; | |
1129 | } | |
a95a4550 | 1130 | |
3af9a47b | 1131 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
116c20d2 | 1132 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
1133 | if (sname == NULL) |
1134 | return -1; | |
1135 | ||
1136 | for (;;) | |
1137 | { | |
a95a4550 AM |
1138 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
1139 | if (bfd_get_section_by_name (abfd, sname) == NULL) | |
3af9a47b | 1140 | break; |
a95a4550 | 1141 | j++; |
3af9a47b NC |
1142 | } |
1143 | ||
1144 | bfdsec = bfd_make_section (abfd, sname); | |
a95a4550 | 1145 | |
3af9a47b NC |
1146 | bfdsec->vma = 0; |
1147 | bfdsec->lma = 0; | |
eea6121a | 1148 | bfdsec->size = cmd->flavours[i].size; |
3af9a47b NC |
1149 | bfdsec->filepos = cmd->flavours[i].offset; |
1150 | bfdsec->alignment_power = 0x0; | |
1151 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1152 | ||
1153 | cmd->section = bfdsec; | |
1154 | } | |
1155 | ||
1156 | return 0; | |
1157 | } | |
1158 | ||
a95a4550 | 1159 | static int |
116c20d2 | 1160 | bfd_mach_o_scan_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1161 | { |
1162 | bfd_mach_o_dysymtab_command *seg = &command->command.dysymtab; | |
1163 | unsigned char buf[72]; | |
1164 | ||
1165 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); | |
1166 | ||
1167 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
1168 | if (bfd_bread ((PTR) buf, 72, abfd) != 72) | |
1169 | return -1; | |
1170 | ||
1171 | seg->ilocalsym = bfd_h_get_32 (abfd, buf + 0); | |
1172 | seg->nlocalsym = bfd_h_get_32 (abfd, buf + 4); | |
1173 | seg->iextdefsym = bfd_h_get_32 (abfd, buf + 8); | |
1174 | seg->nextdefsym = bfd_h_get_32 (abfd, buf + 12); | |
1175 | seg->iundefsym = bfd_h_get_32 (abfd, buf + 16); | |
1176 | seg->nundefsym = bfd_h_get_32 (abfd, buf + 20); | |
1177 | seg->tocoff = bfd_h_get_32 (abfd, buf + 24); | |
1178 | seg->ntoc = bfd_h_get_32 (abfd, buf + 28); | |
1179 | seg->modtaboff = bfd_h_get_32 (abfd, buf + 32); | |
1180 | seg->nmodtab = bfd_h_get_32 (abfd, buf + 36); | |
1181 | seg->extrefsymoff = bfd_h_get_32 (abfd, buf + 40); | |
1182 | seg->nextrefsyms = bfd_h_get_32 (abfd, buf + 44); | |
1183 | seg->indirectsymoff = bfd_h_get_32 (abfd, buf + 48); | |
1184 | seg->nindirectsyms = bfd_h_get_32 (abfd, buf + 52); | |
1185 | seg->extreloff = bfd_h_get_32 (abfd, buf + 56); | |
1186 | seg->nextrel = bfd_h_get_32 (abfd, buf + 60); | |
1187 | seg->locreloff = bfd_h_get_32 (abfd, buf + 64); | |
1188 | seg->nlocrel = bfd_h_get_32 (abfd, buf + 68); | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
a95a4550 | 1193 | static int |
116c20d2 | 1194 | bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1195 | { |
1196 | bfd_mach_o_symtab_command *seg = &command->command.symtab; | |
1197 | unsigned char buf[16]; | |
1198 | asection *bfdsec; | |
1199 | char *sname; | |
1200 | const char *prefix = "LC_SYMTAB.stabs"; | |
1201 | ||
1202 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); | |
1203 | ||
1204 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
1205 | if (bfd_bread ((PTR) buf, 16, abfd) != 16) | |
1206 | return -1; | |
a95a4550 | 1207 | |
3af9a47b NC |
1208 | seg->symoff = bfd_h_get_32 (abfd, buf); |
1209 | seg->nsyms = bfd_h_get_32 (abfd, buf + 4); | |
1210 | seg->stroff = bfd_h_get_32 (abfd, buf + 8); | |
1211 | seg->strsize = bfd_h_get_32 (abfd, buf + 12); | |
1212 | seg->symbols = NULL; | |
1213 | seg->strtab = NULL; | |
1214 | ||
116c20d2 | 1215 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
1216 | if (sname == NULL) |
1217 | return -1; | |
1218 | strcpy (sname, prefix); | |
1219 | ||
1220 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1221 | if (bfdsec == NULL) | |
1222 | return -1; | |
a95a4550 | 1223 | |
3af9a47b NC |
1224 | bfdsec->vma = 0; |
1225 | bfdsec->lma = 0; | |
eea6121a | 1226 | bfdsec->size = seg->nsyms * 12; |
3af9a47b NC |
1227 | bfdsec->filepos = seg->symoff; |
1228 | bfdsec->alignment_power = 0; | |
1229 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1230 | ||
1231 | seg->stabs_segment = bfdsec; | |
1232 | ||
1233 | prefix = "LC_SYMTAB.stabstr"; | |
116c20d2 | 1234 | sname = bfd_alloc (abfd, strlen (prefix) + 1); |
3af9a47b NC |
1235 | if (sname == NULL) |
1236 | return -1; | |
1237 | strcpy (sname, prefix); | |
1238 | ||
1239 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1240 | if (bfdsec == NULL) | |
1241 | return -1; | |
a95a4550 | 1242 | |
3af9a47b NC |
1243 | bfdsec->vma = 0; |
1244 | bfdsec->lma = 0; | |
eea6121a | 1245 | bfdsec->size = seg->strsize; |
3af9a47b NC |
1246 | bfdsec->filepos = seg->stroff; |
1247 | bfdsec->alignment_power = 0; | |
1248 | bfdsec->flags = SEC_HAS_CONTENTS; | |
1249 | ||
1250 | seg->stabstr_segment = bfdsec; | |
1251 | ||
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | static int | |
116c20d2 | 1256 | bfd_mach_o_scan_read_segment (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1257 | { |
1258 | unsigned char buf[48]; | |
1259 | bfd_mach_o_segment_command *seg = &command->command.segment; | |
1260 | unsigned long i; | |
1261 | asection *bfdsec; | |
1262 | char *sname; | |
1263 | const char *prefix = "LC_SEGMENT"; | |
1264 | unsigned int snamelen; | |
a95a4550 | 1265 | |
3af9a47b NC |
1266 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
1267 | ||
1268 | bfd_seek (abfd, command->offset + 8, SEEK_SET); | |
1269 | if (bfd_bread ((PTR) buf, 48, abfd) != 48) | |
1270 | return -1; | |
1271 | ||
1272 | memcpy (seg->segname, buf, 16); | |
1273 | seg->vmaddr = bfd_h_get_32 (abfd, buf + 16); | |
1274 | seg->vmsize = bfd_h_get_32 (abfd, buf + 20); | |
1275 | seg->fileoff = bfd_h_get_32 (abfd, buf + 24); | |
1276 | seg->filesize = bfd_h_get_32 (abfd, buf + 28); | |
1277 | /* seg->maxprot = bfd_h_get_32 (abfd, buf + 32); */ | |
1278 | /* seg->initprot = bfd_h_get_32 (abfd, buf + 36); */ | |
1279 | seg->nsects = bfd_h_get_32 (abfd, buf + 40); | |
1280 | seg->flags = bfd_h_get_32 (abfd, buf + 44); | |
1281 | ||
1282 | snamelen = strlen (prefix) + 1 + strlen (seg->segname) + 1; | |
116c20d2 | 1283 | sname = bfd_alloc (abfd, snamelen); |
3af9a47b NC |
1284 | if (sname == NULL) |
1285 | return -1; | |
1286 | sprintf (sname, "%s.%s", prefix, seg->segname); | |
1287 | ||
1288 | bfdsec = bfd_make_section_anyway (abfd, sname); | |
1289 | if (bfdsec == NULL) | |
1290 | return -1; | |
1291 | ||
1292 | bfdsec->vma = seg->vmaddr; | |
1293 | bfdsec->lma = seg->vmaddr; | |
eea6121a | 1294 | bfdsec->size = seg->filesize; |
3af9a47b NC |
1295 | bfdsec->filepos = seg->fileoff; |
1296 | bfdsec->alignment_power = 0x0; | |
1297 | bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; | |
1298 | ||
1299 | seg->segment = bfdsec; | |
1300 | ||
1301 | if (seg->nsects != 0) | |
1302 | { | |
116c20d2 | 1303 | seg->sections = bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section)); |
3af9a47b NC |
1304 | if (seg->sections == NULL) |
1305 | return -1; | |
a95a4550 | 1306 | |
3af9a47b NC |
1307 | for (i = 0; i < seg->nsects; i++) |
1308 | { | |
1309 | bfd_vma segoff = command->offset + 48 + 8 + (i * 68); | |
1310 | ||
e84d6fca AM |
1311 | if (bfd_mach_o_scan_read_section (abfd, &seg->sections[i], |
1312 | segoff) != 0) | |
3af9a47b | 1313 | return -1; |
a95a4550 | 1314 | } |
3af9a47b NC |
1315 | } |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
1320 | static int | |
116c20d2 | 1321 | bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command) |
3af9a47b NC |
1322 | { |
1323 | unsigned char buf[8]; | |
1324 | ||
1325 | bfd_seek (abfd, command->offset, SEEK_SET); | |
1326 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
1327 | return -1; | |
1328 | ||
1329 | command->type = (bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD); | |
e84d6fca AM |
1330 | command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD |
1331 | ? 1 : 0); | |
3af9a47b NC |
1332 | command->len = bfd_h_get_32 (abfd, buf + 4); |
1333 | ||
1334 | switch (command->type) | |
1335 | { | |
1336 | case BFD_MACH_O_LC_SEGMENT: | |
1337 | if (bfd_mach_o_scan_read_segment (abfd, command) != 0) | |
1338 | return -1; | |
1339 | break; | |
1340 | case BFD_MACH_O_LC_SYMTAB: | |
1341 | if (bfd_mach_o_scan_read_symtab (abfd, command) != 0) | |
1342 | return -1; | |
1343 | break; | |
1344 | case BFD_MACH_O_LC_SYMSEG: | |
1345 | break; | |
1346 | case BFD_MACH_O_LC_THREAD: | |
1347 | case BFD_MACH_O_LC_UNIXTHREAD: | |
1348 | if (bfd_mach_o_scan_read_thread (abfd, command) != 0) | |
1349 | return -1; | |
1350 | break; | |
1351 | case BFD_MACH_O_LC_LOAD_DYLINKER: | |
1352 | case BFD_MACH_O_LC_ID_DYLINKER: | |
1353 | if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0) | |
1354 | return -1; | |
1355 | break; | |
1356 | case BFD_MACH_O_LC_LOAD_DYLIB: | |
1357 | case BFD_MACH_O_LC_ID_DYLIB: | |
1358 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: | |
1359 | if (bfd_mach_o_scan_read_dylib (abfd, command) != 0) | |
1360 | return -1; | |
1361 | break; | |
1362 | case BFD_MACH_O_LC_PREBOUND_DYLIB: | |
1363 | if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0) | |
1364 | return -1; | |
1365 | break; | |
1366 | case BFD_MACH_O_LC_LOADFVMLIB: | |
1367 | case BFD_MACH_O_LC_IDFVMLIB: | |
1368 | case BFD_MACH_O_LC_IDENT: | |
1369 | case BFD_MACH_O_LC_FVMFILE: | |
1370 | case BFD_MACH_O_LC_PREPAGE: | |
1371 | case BFD_MACH_O_LC_ROUTINES: | |
1372 | case BFD_MACH_O_LC_SUB_FRAMEWORK: | |
1373 | break; | |
1374 | case BFD_MACH_O_LC_DYSYMTAB: | |
1375 | if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0) | |
1376 | return -1; | |
1377 | break; | |
1378 | case BFD_MACH_O_LC_SUB_UMBRELLA: | |
1379 | case BFD_MACH_O_LC_SUB_CLIENT: | |
1380 | case BFD_MACH_O_LC_SUB_LIBRARY: | |
1381 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: | |
1382 | case BFD_MACH_O_LC_PREBIND_CKSUM: | |
1383 | break; | |
1384 | default: | |
1385 | fprintf (stderr, "unable to read unknown load command 0x%lx\n", | |
1386 | (unsigned long) command->type); | |
1387 | break; | |
1388 | } | |
1389 | ||
1390 | return 0; | |
1391 | } | |
1392 | ||
1393 | static void | |
116c20d2 | 1394 | bfd_mach_o_flatten_sections (bfd *abfd) |
3af9a47b NC |
1395 | { |
1396 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
1397 | long csect = 0; | |
1398 | unsigned long i, j; | |
a95a4550 | 1399 | |
3af9a47b NC |
1400 | mdata->nsects = 0; |
1401 | ||
1402 | for (i = 0; i < mdata->header.ncmds; i++) | |
1403 | { | |
1404 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) | |
1405 | { | |
e84d6fca AM |
1406 | bfd_mach_o_segment_command *seg; |
1407 | ||
1408 | seg = &mdata->commands[i].command.segment; | |
3af9a47b NC |
1409 | mdata->nsects += seg->nsects; |
1410 | } | |
1411 | } | |
1412 | ||
e84d6fca AM |
1413 | mdata->sections = bfd_alloc (abfd, |
1414 | mdata->nsects * sizeof (bfd_mach_o_section *)); | |
3af9a47b NC |
1415 | csect = 0; |
1416 | ||
1417 | for (i = 0; i < mdata->header.ncmds; i++) | |
1418 | { | |
1419 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) | |
1420 | { | |
e84d6fca | 1421 | bfd_mach_o_segment_command *seg; |
3af9a47b | 1422 | |
e84d6fca | 1423 | seg = &mdata->commands[i].command.segment; |
3af9a47b NC |
1424 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
1425 | ||
1426 | for (j = 0; j < seg->nsects; j++) | |
1427 | mdata->sections[csect++] = &seg->sections[j]; | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | int | |
116c20d2 | 1433 | bfd_mach_o_scan_start_address (bfd *abfd) |
3af9a47b NC |
1434 | { |
1435 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
1436 | bfd_mach_o_thread_command *cmd = NULL; | |
1437 | unsigned long i; | |
1438 | ||
1439 | for (i = 0; i < mdata->header.ncmds; i++) | |
1440 | { | |
1441 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || | |
1442 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) | |
1443 | { | |
1444 | if (cmd == NULL) | |
1445 | cmd = &mdata->commands[i].command.thread; | |
1446 | else | |
1447 | return 0; | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | if (cmd == NULL) | |
1452 | return 0; | |
1453 | ||
1454 | for (i = 0; i < cmd->nflavours; i++) | |
1455 | { | |
a95a4550 | 1456 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
e84d6fca AM |
1457 | && (cmd->flavours[i].flavour |
1458 | == (unsigned long) BFD_MACH_O_i386_THREAD_STATE)) | |
3af9a47b NC |
1459 | { |
1460 | unsigned char buf[4]; | |
1461 | ||
1462 | bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET); | |
1463 | ||
1464 | if (bfd_bread (buf, 4, abfd) != 4) | |
1465 | return -1; | |
1466 | ||
1467 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
1468 | } | |
a95a4550 | 1469 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
3af9a47b NC |
1470 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
1471 | { | |
1472 | unsigned char buf[4]; | |
1473 | ||
1474 | bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET); | |
1475 | ||
1476 | if (bfd_bread (buf, 4, abfd) != 4) | |
1477 | return -1; | |
1478 | ||
1479 | abfd->start_address = bfd_h_get_32 (abfd, buf); | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | return 0; | |
1484 | } | |
1485 | ||
1486 | int | |
116c20d2 NC |
1487 | bfd_mach_o_scan (bfd *abfd, |
1488 | bfd_mach_o_header *header, | |
1489 | bfd_mach_o_data_struct *mdata) | |
3af9a47b NC |
1490 | { |
1491 | unsigned int i; | |
3af9a47b NC |
1492 | enum bfd_architecture cputype; |
1493 | unsigned long cpusubtype; | |
1494 | ||
3af9a47b NC |
1495 | mdata->header = *header; |
1496 | mdata->symbols = NULL; | |
1497 | ||
e84d6fca AM |
1498 | abfd->flags = (abfd->xvec->object_flags |
1499 | | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS))); | |
3af9a47b NC |
1500 | abfd->tdata.mach_o_data = mdata; |
1501 | ||
e84d6fca AM |
1502 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
1503 | &cputype, &cpusubtype); | |
3af9a47b NC |
1504 | if (cputype == bfd_arch_unknown) |
1505 | { | |
1506 | fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n", | |
1507 | header->cputype, header->cpusubtype); | |
1508 | return -1; | |
1509 | } | |
1510 | ||
1511 | bfd_set_arch_mach (abfd, cputype, cpusubtype); | |
a95a4550 | 1512 | |
3af9a47b NC |
1513 | if (header->ncmds != 0) |
1514 | { | |
116c20d2 | 1515 | mdata->commands = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); |
3af9a47b NC |
1516 | if (mdata->commands == NULL) |
1517 | return -1; | |
a95a4550 | 1518 | |
3af9a47b NC |
1519 | for (i = 0; i < header->ncmds; i++) |
1520 | { | |
1521 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
1522 | ||
1523 | if (i == 0) | |
1524 | cur->offset = 28; | |
1525 | else | |
1526 | { | |
1527 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; | |
1528 | cur->offset = prev->offset + prev->len; | |
1529 | } | |
1530 | ||
1531 | if (bfd_mach_o_scan_read_command (abfd, cur) < 0) | |
1532 | return -1; | |
a95a4550 | 1533 | } |
3af9a47b NC |
1534 | } |
1535 | ||
1536 | if (bfd_mach_o_scan_start_address (abfd) < 0) | |
7e3102a7 | 1537 | return -1; |
3af9a47b NC |
1538 | |
1539 | bfd_mach_o_flatten_sections (abfd); | |
3af9a47b NC |
1540 | return 0; |
1541 | } | |
1542 | ||
b34976b6 | 1543 | bfd_boolean |
116c20d2 | 1544 | bfd_mach_o_mkobject (bfd *abfd) |
3af9a47b NC |
1545 | { |
1546 | bfd_mach_o_data_struct *mdata = NULL; | |
1547 | ||
116c20d2 | 1548 | mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)); |
3af9a47b | 1549 | if (mdata == NULL) |
b34976b6 | 1550 | return FALSE; |
3af9a47b NC |
1551 | abfd->tdata.mach_o_data = mdata; |
1552 | ||
1553 | mdata->header.magic = 0; | |
1554 | mdata->header.cputype = 0; | |
1555 | mdata->header.cpusubtype = 0; | |
1556 | mdata->header.filetype = 0; | |
1557 | mdata->header.ncmds = 0; | |
1558 | mdata->header.sizeofcmds = 0; | |
1559 | mdata->header.flags = 0; | |
1560 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; | |
1561 | mdata->commands = NULL; | |
1562 | mdata->nsymbols = 0; | |
1563 | mdata->symbols = NULL; | |
1564 | mdata->nsects = 0; | |
1565 | mdata->sections = NULL; | |
1566 | mdata->ibfd = NULL; | |
1567 | ||
b34976b6 | 1568 | return TRUE; |
3af9a47b NC |
1569 | } |
1570 | ||
1571 | const bfd_target * | |
116c20d2 | 1572 | bfd_mach_o_object_p (bfd *abfd) |
3af9a47b | 1573 | { |
e84d6fca | 1574 | struct bfd_preserve preserve; |
3af9a47b NC |
1575 | bfd_mach_o_header header; |
1576 | ||
e84d6fca | 1577 | preserve.marker = NULL; |
3af9a47b | 1578 | if (bfd_mach_o_read_header (abfd, &header) != 0) |
e84d6fca | 1579 | goto wrong; |
3af9a47b | 1580 | |
e84d6fca AM |
1581 | if (! (header.byteorder == BFD_ENDIAN_BIG |
1582 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 1583 | { |
e84d6fca AM |
1584 | fprintf (stderr, "unknown header byte-order value 0x%lx\n", |
1585 | (long) header.byteorder); | |
1586 | goto wrong; | |
3af9a47b NC |
1587 | } |
1588 | ||
e84d6fca AM |
1589 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
1590 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
1591 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
1592 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
1593 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
1594 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
1595 | goto wrong; | |
3af9a47b | 1596 | |
e84d6fca AM |
1597 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
1598 | if (preserve.marker == NULL | |
1599 | || !bfd_preserve_save (abfd, &preserve)) | |
1600 | goto fail; | |
3af9a47b | 1601 | |
e84d6fca AM |
1602 | if (bfd_mach_o_scan (abfd, &header, |
1603 | (bfd_mach_o_data_struct *) preserve.marker) != 0) | |
1604 | goto wrong; | |
a95a4550 | 1605 | |
e84d6fca | 1606 | bfd_preserve_finish (abfd, &preserve); |
3af9a47b | 1607 | return abfd->xvec; |
e84d6fca AM |
1608 | |
1609 | wrong: | |
1610 | bfd_set_error (bfd_error_wrong_format); | |
1611 | ||
1612 | fail: | |
1613 | if (preserve.marker != NULL) | |
1614 | bfd_preserve_restore (abfd, &preserve); | |
1615 | return NULL; | |
3af9a47b NC |
1616 | } |
1617 | ||
1618 | const bfd_target * | |
116c20d2 | 1619 | bfd_mach_o_core_p (bfd *abfd) |
3af9a47b | 1620 | { |
e84d6fca | 1621 | struct bfd_preserve preserve; |
3af9a47b NC |
1622 | bfd_mach_o_header header; |
1623 | ||
e84d6fca | 1624 | preserve.marker = NULL; |
3af9a47b | 1625 | if (bfd_mach_o_read_header (abfd, &header) != 0) |
e84d6fca | 1626 | goto wrong; |
3af9a47b | 1627 | |
e84d6fca AM |
1628 | if (! (header.byteorder == BFD_ENDIAN_BIG |
1629 | || header.byteorder == BFD_ENDIAN_LITTLE)) | |
3af9a47b | 1630 | { |
e84d6fca AM |
1631 | fprintf (stderr, "unknown header byte-order value 0x%lx\n", |
1632 | (long) header.byteorder); | |
3af9a47b NC |
1633 | abort (); |
1634 | } | |
1635 | ||
e84d6fca AM |
1636 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
1637 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG | |
1638 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) | |
1639 | || (header.byteorder == BFD_ENDIAN_LITTLE | |
1640 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE | |
1641 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) | |
1642 | goto wrong; | |
3af9a47b NC |
1643 | |
1644 | if (header.filetype != BFD_MACH_O_MH_CORE) | |
e84d6fca | 1645 | goto wrong; |
3af9a47b | 1646 | |
e84d6fca AM |
1647 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
1648 | if (preserve.marker == NULL | |
1649 | || !bfd_preserve_save (abfd, &preserve)) | |
1650 | goto fail; | |
a95a4550 | 1651 | |
e84d6fca AM |
1652 | if (bfd_mach_o_scan (abfd, &header, |
1653 | (bfd_mach_o_data_struct *) preserve.marker) != 0) | |
1654 | goto wrong; | |
1655 | ||
1656 | bfd_preserve_finish (abfd, &preserve); | |
3af9a47b | 1657 | return abfd->xvec; |
e84d6fca AM |
1658 | |
1659 | wrong: | |
1660 | bfd_set_error (bfd_error_wrong_format); | |
1661 | ||
1662 | fail: | |
1663 | if (preserve.marker != NULL) | |
1664 | bfd_preserve_restore (abfd, &preserve); | |
1665 | return NULL; | |
3af9a47b NC |
1666 | } |
1667 | ||
1668 | typedef struct mach_o_fat_archentry | |
1669 | { | |
1670 | unsigned long cputype; | |
1671 | unsigned long cpusubtype; | |
1672 | unsigned long offset; | |
1673 | unsigned long size; | |
1674 | unsigned long align; | |
1675 | bfd *abfd; | |
1676 | } mach_o_fat_archentry; | |
1677 | ||
1678 | typedef struct mach_o_fat_data_struct | |
1679 | { | |
1680 | unsigned long magic; | |
1681 | unsigned long nfat_arch; | |
1682 | mach_o_fat_archentry *archentries; | |
1683 | } mach_o_fat_data_struct; | |
1684 | ||
1685 | const bfd_target * | |
116c20d2 | 1686 | bfd_mach_o_archive_p (bfd *abfd) |
3af9a47b | 1687 | { |
e84d6fca | 1688 | mach_o_fat_data_struct *adata = NULL; |
3af9a47b NC |
1689 | unsigned char buf[20]; |
1690 | unsigned long i; | |
1691 | ||
1692 | bfd_seek (abfd, 0, SEEK_SET); | |
1693 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) | |
e84d6fca | 1694 | goto error; |
3af9a47b | 1695 | |
116c20d2 | 1696 | adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
3af9a47b | 1697 | if (adata == NULL) |
e84d6fca | 1698 | goto error; |
a95a4550 | 1699 | |
3af9a47b NC |
1700 | adata->magic = bfd_getb32 (buf); |
1701 | adata->nfat_arch = bfd_getb32 (buf + 4); | |
1702 | if (adata->magic != 0xcafebabe) | |
e84d6fca | 1703 | goto error; |
3af9a47b | 1704 | |
116c20d2 | 1705 | adata->archentries = |
3af9a47b NC |
1706 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
1707 | if (adata->archentries == NULL) | |
e84d6fca | 1708 | goto error; |
3af9a47b NC |
1709 | |
1710 | for (i = 0; i < adata->nfat_arch; i++) | |
1711 | { | |
1712 | bfd_seek (abfd, 8 + 20 * i, SEEK_SET); | |
1713 | ||
1714 | if (bfd_bread ((PTR) buf, 20, abfd) != 20) | |
e84d6fca | 1715 | goto error; |
3af9a47b NC |
1716 | adata->archentries[i].cputype = bfd_getb32 (buf); |
1717 | adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4); | |
1718 | adata->archentries[i].offset = bfd_getb32 (buf + 8); | |
1719 | adata->archentries[i].size = bfd_getb32 (buf + 12); | |
1720 | adata->archentries[i].align = bfd_getb32 (buf + 16); | |
1721 | adata->archentries[i].abfd = NULL; | |
1722 | } | |
1723 | ||
1724 | abfd->tdata.mach_o_fat_data = adata; | |
1725 | return abfd->xvec; | |
e84d6fca AM |
1726 | |
1727 | error: | |
1728 | if (adata != NULL) | |
1729 | bfd_release (abfd, adata); | |
1730 | bfd_set_error (bfd_error_wrong_format); | |
1731 | return NULL; | |
3af9a47b NC |
1732 | } |
1733 | ||
1734 | bfd * | |
116c20d2 | 1735 | bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) |
3af9a47b | 1736 | { |
e84d6fca | 1737 | mach_o_fat_data_struct *adata; |
3af9a47b NC |
1738 | mach_o_fat_archentry *entry = NULL; |
1739 | unsigned long i; | |
1740 | ||
e84d6fca | 1741 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
3af9a47b NC |
1742 | BFD_ASSERT (adata != NULL); |
1743 | ||
1744 | /* Find index of previous entry. */ | |
1745 | if (prev == NULL) | |
1746 | i = 0; /* Start at first one. */ | |
1747 | else | |
1748 | { | |
1749 | for (i = 0; i < adata->nfat_arch; i++) | |
1750 | { | |
1751 | if (adata->archentries[i].abfd == prev) | |
1752 | break; | |
1753 | } | |
1754 | ||
1755 | if (i == adata->nfat_arch) | |
1756 | { | |
1757 | /* Not found. */ | |
1758 | bfd_set_error (bfd_error_bad_value); | |
a95a4550 | 1759 | return NULL; |
3af9a47b NC |
1760 | } |
1761 | i++; /* Get next entry. */ | |
1762 | } | |
a95a4550 | 1763 | |
3af9a47b NC |
1764 | if (i >= adata->nfat_arch) |
1765 | { | |
1766 | bfd_set_error (bfd_error_no_more_archived_files); | |
1767 | return NULL; | |
1768 | } | |
1769 | ||
1770 | entry = &adata->archentries[i]; | |
1771 | if (entry->abfd == NULL) | |
1772 | { | |
1773 | bfd *nbfd = _bfd_new_bfd_contained_in (archive); | |
1774 | char *s = NULL; | |
1775 | ||
1776 | if (nbfd == NULL) | |
1777 | return NULL; | |
1778 | ||
1779 | nbfd->origin = entry->offset; | |
1780 | s = bfd_malloc (strlen (archive->filename) + 1); | |
1781 | if (s == NULL) | |
1782 | return NULL; | |
1783 | strcpy (s, archive->filename); | |
1784 | nbfd->filename = s; | |
1785 | nbfd->iostream = NULL; | |
1786 | entry->abfd = nbfd; | |
1787 | } | |
1788 | ||
1789 | return entry->abfd; | |
1790 | } | |
1791 | ||
e84d6fca | 1792 | int |
116c20d2 NC |
1793 | bfd_mach_o_lookup_section (bfd *abfd, |
1794 | asection *section, | |
1795 | bfd_mach_o_load_command **mcommand, | |
1796 | bfd_mach_o_section **msection) | |
3af9a47b NC |
1797 | { |
1798 | struct mach_o_data_struct *md = abfd->tdata.mach_o_data; | |
1799 | unsigned int i, j, num; | |
1800 | ||
1801 | bfd_mach_o_load_command *ncmd = NULL; | |
1802 | bfd_mach_o_section *nsect = NULL; | |
1803 | ||
1804 | BFD_ASSERT (mcommand != NULL); | |
1805 | BFD_ASSERT (msection != NULL); | |
1806 | ||
1807 | num = 0; | |
1808 | for (i = 0; i < md->header.ncmds; i++) | |
1809 | { | |
1810 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
1811 | struct bfd_mach_o_segment_command *seg = NULL; | |
1812 | ||
1813 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) | |
1814 | continue; | |
1815 | seg = &cmd->command.segment; | |
a95a4550 | 1816 | |
3af9a47b NC |
1817 | if (seg->segment == section) |
1818 | { | |
1819 | if (num == 0) | |
1820 | ncmd = cmd; | |
1821 | num++; | |
1822 | } | |
1823 | ||
1824 | for (j = 0; j < seg->nsects; j++) | |
1825 | { | |
1826 | struct bfd_mach_o_section *sect = &seg->sections[j]; | |
1827 | ||
1828 | if (sect->bfdsection == section) | |
1829 | { | |
1830 | if (num == 0) | |
1831 | nsect = sect; | |
1832 | num++; | |
1833 | } | |
1834 | } | |
1835 | } | |
a95a4550 | 1836 | |
3af9a47b NC |
1837 | *mcommand = ncmd; |
1838 | *msection = nsect; | |
1839 | return num; | |
1840 | } | |
1841 | ||
1842 | int | |
116c20d2 NC |
1843 | bfd_mach_o_lookup_command (bfd *abfd, |
1844 | bfd_mach_o_load_command_type type, | |
1845 | bfd_mach_o_load_command **mcommand) | |
3af9a47b NC |
1846 | { |
1847 | struct mach_o_data_struct *md = NULL; | |
1848 | bfd_mach_o_load_command *ncmd = NULL; | |
1849 | unsigned int i, num; | |
1850 | ||
1851 | md = abfd->tdata.mach_o_data; | |
1852 | ||
1853 | BFD_ASSERT (md != NULL); | |
1854 | BFD_ASSERT (mcommand != NULL); | |
1855 | ||
1856 | num = 0; | |
1857 | for (i = 0; i < md->header.ncmds; i++) | |
1858 | { | |
1859 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; | |
1860 | ||
1861 | if (cmd->type != type) | |
1862 | continue; | |
1863 | ||
1864 | if (num == 0) | |
1865 | ncmd = cmd; | |
1866 | num++; | |
1867 | } | |
1868 | ||
1869 | *mcommand = ncmd; | |
1870 | return num; | |
1871 | } | |
1872 | ||
1873 | unsigned long | |
116c20d2 | 1874 | bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) |
3af9a47b NC |
1875 | { |
1876 | switch (type) | |
1877 | { | |
1878 | case BFD_MACH_O_CPU_TYPE_MC680x0: | |
1879 | return 0x04000000; | |
1880 | case BFD_MACH_O_CPU_TYPE_MC88000: | |
1881 | return 0xffffe000; | |
1882 | case BFD_MACH_O_CPU_TYPE_POWERPC: | |
1883 | return 0xc0000000; | |
1884 | case BFD_MACH_O_CPU_TYPE_I386: | |
1885 | return 0xc0000000; | |
1886 | case BFD_MACH_O_CPU_TYPE_SPARC: | |
1887 | return 0xf0000000; | |
1888 | case BFD_MACH_O_CPU_TYPE_I860: | |
1889 | return 0; | |
1890 | case BFD_MACH_O_CPU_TYPE_HPPA: | |
e84d6fca | 1891 | return 0xc0000000 - 0x04000000; |
3af9a47b NC |
1892 | default: |
1893 | return 0; | |
1894 | } | |
1895 | } | |
1896 | ||
1897 | int | |
116c20d2 NC |
1898 | bfd_mach_o_core_fetch_environment (bfd *abfd, |
1899 | unsigned char **rbuf, | |
1900 | unsigned int *rlen) | |
3af9a47b NC |
1901 | { |
1902 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; | |
1903 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); | |
1904 | unsigned int i = 0; | |
1905 | ||
1906 | for (i = 0; i < mdata->header.ncmds; i++) | |
1907 | { | |
1908 | bfd_mach_o_load_command *cur = &mdata->commands[i]; | |
1909 | bfd_mach_o_segment_command *seg = NULL; | |
1910 | ||
1911 | if (cur->type != BFD_MACH_O_LC_SEGMENT) | |
1912 | continue; | |
1913 | ||
1914 | seg = &cur->command.segment; | |
1915 | ||
1916 | if ((seg->vmaddr + seg->vmsize) == stackaddr) | |
1917 | { | |
1918 | unsigned long start = seg->fileoff; | |
1919 | unsigned long end = seg->fileoff + seg->filesize; | |
1920 | unsigned char *buf = bfd_malloc (1024); | |
1921 | unsigned long size = 1024; | |
1922 | ||
1923 | for (;;) | |
1924 | { | |
1925 | bfd_size_type nread = 0; | |
1926 | unsigned long offset; | |
1927 | int found_nonnull = 0; | |
1928 | ||
1929 | if (size > (end - start)) | |
1930 | size = (end - start); | |
1931 | ||
1932 | buf = bfd_realloc (buf, size); | |
1933 | ||
1934 | bfd_seek (abfd, end - size, SEEK_SET); | |
1935 | nread = bfd_bread (buf, size, abfd); | |
a95a4550 | 1936 | |
3af9a47b NC |
1937 | if (nread != size) |
1938 | return -1; | |
a95a4550 | 1939 | |
3af9a47b NC |
1940 | for (offset = 4; offset <= size; offset += 4) |
1941 | { | |
e84d6fca | 1942 | unsigned long val; |
3af9a47b | 1943 | |
e84d6fca | 1944 | val = *((unsigned long *) (buf + size - offset)); |
3af9a47b NC |
1945 | if (! found_nonnull) |
1946 | { | |
1947 | if (val != 0) | |
1948 | found_nonnull = 1; | |
1949 | } | |
1950 | else if (val == 0x0) | |
1951 | { | |
e84d6fca AM |
1952 | unsigned long bottom; |
1953 | unsigned long top; | |
3af9a47b | 1954 | |
e84d6fca AM |
1955 | bottom = seg->fileoff + seg->filesize - offset; |
1956 | top = seg->fileoff + seg->filesize - 4; | |
3af9a47b NC |
1957 | *rbuf = bfd_malloc (top - bottom); |
1958 | *rlen = top - bottom; | |
1959 | ||
1960 | memcpy (*rbuf, buf + size - *rlen, *rlen); | |
1961 | return 0; | |
1962 | } | |
1963 | } | |
1964 | ||
1965 | if (size == (end - start)) | |
1966 | break; | |
1967 | ||
1968 | size *= 2; | |
1969 | } | |
1970 | } | |
1971 | } | |
1972 | ||
1973 | return -1; | |
1974 | } | |
1975 | ||
1976 | char * | |
116c20d2 | 1977 | bfd_mach_o_core_file_failing_command (bfd *abfd) |
3af9a47b NC |
1978 | { |
1979 | unsigned char *buf = NULL; | |
1980 | unsigned int len = 0; | |
1981 | int ret = -1; | |
1982 | ||
1983 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); | |
1984 | if (ret < 0) | |
1985 | return NULL; | |
1986 | ||
f075ee0c | 1987 | return (char *) buf; |
3af9a47b NC |
1988 | } |
1989 | ||
1990 | int | |
116c20d2 | 1991 | bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) |
3af9a47b NC |
1992 | { |
1993 | return 0; | |
1994 | } | |
1995 | ||
b34976b6 | 1996 | bfd_boolean |
116c20d2 NC |
1997 | bfd_mach_o_core_file_matches_executable_p (bfd *core_bfd ATTRIBUTE_UNUSED, |
1998 | bfd *exec_bfd ATTRIBUTE_UNUSED) | |
3af9a47b | 1999 | { |
b34976b6 | 2000 | return TRUE; |
3af9a47b NC |
2001 | } |
2002 | ||
116c20d2 NC |
2003 | #define TARGET_NAME mach_o_be_vec |
2004 | #define TARGET_STRING "mach-o-be" | |
2005 | #define TARGET_BIG_ENDIAN 1 | |
2006 | #define TARGET_ARCHIVE 0 | |
3af9a47b NC |
2007 | |
2008 | #include "mach-o-target.c" | |
2009 | ||
2010 | #undef TARGET_NAME | |
2011 | #undef TARGET_STRING | |
2012 | #undef TARGET_BIG_ENDIAN | |
2013 | #undef TARGET_ARCHIVE | |
2014 | ||
116c20d2 NC |
2015 | #define TARGET_NAME mach_o_le_vec |
2016 | #define TARGET_STRING "mach-o-le" | |
2017 | #define TARGET_BIG_ENDIAN 0 | |
2018 | #define TARGET_ARCHIVE 0 | |
3af9a47b NC |
2019 | |
2020 | #include "mach-o-target.c" | |
2021 | ||
2022 | #undef TARGET_NAME | |
2023 | #undef TARGET_STRING | |
2024 | #undef TARGET_BIG_ENDIAN | |
2025 | #undef TARGET_ARCHIVE | |
2026 | ||
116c20d2 NC |
2027 | #define TARGET_NAME mach_o_fat_vec |
2028 | #define TARGET_STRING "mach-o-fat" | |
2029 | #define TARGET_BIG_ENDIAN 1 | |
2030 | #define TARGET_ARCHIVE 1 | |
3af9a47b NC |
2031 | |
2032 | #include "mach-o-target.c" | |
2033 | ||
2034 | #undef TARGET_NAME | |
2035 | #undef TARGET_STRING | |
2036 | #undef TARGET_BIG_ENDIAN | |
2037 | #undef TARGET_ARCHIVE |