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a80b95ba | 1 | /* Darwin support for GDB, the GNU debugger. |
618f726f | 2 | Copyright (C) 2008-2016 Free Software Foundation, Inc. |
a80b95ba TG |
3 | |
4 | Contributed by AdaCore. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
47d48711 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
a80b95ba TG |
20 | |
21 | #include "defs.h" | |
22 | #include "symtab.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "bfd.h" | |
25 | #include "symfile.h" | |
26 | #include "objfiles.h" | |
27 | #include "buildsym.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "gdbcore.h" | |
30 | #include "mach-o.h" | |
a80b95ba TG |
31 | #include "aout/stab_gnu.h" |
32 | #include "vec.h" | |
ccefe4c4 | 33 | #include "psympriv.h" |
e4c5f296 | 34 | #include "complaints.h" |
29f77997 | 35 | #include "gdb_bfd.h" |
a80b95ba | 36 | |
a80b95ba | 37 | /* If non-zero displays debugging message. */ |
ccce17b0 | 38 | static unsigned int mach_o_debug_level = 0; |
a80b95ba | 39 | |
a80b95ba TG |
40 | /* Dwarf debugging information are never in the final executable. They stay |
41 | in object files and the executable contains the list of object files read | |
42 | during the link. | |
43 | Each time an oso (other source) is found in the executable, the reader | |
44 | creates such a structure. They are read after the processing of the | |
025bb325 MS |
45 | executable. */ |
46 | ||
a80b95ba TG |
47 | typedef struct oso_el |
48 | { | |
e4c5f296 | 49 | /* Object file name. Can also be a member name. */ |
a80b95ba TG |
50 | const char *name; |
51 | ||
52 | /* Associated time stamp. */ | |
53 | unsigned long mtime; | |
54 | ||
e4c5f296 TG |
55 | /* Stab symbols range for this OSO. */ |
56 | asymbol **oso_sym; | |
57 | asymbol **end_sym; | |
a80b95ba | 58 | |
e4c5f296 TG |
59 | /* Number of interesting stabs in the range. */ |
60 | unsigned int nbr_syms; | |
a80b95ba TG |
61 | } |
62 | oso_el; | |
63 | ||
8b89a20a | 64 | /* Vector of object files to be read after the executable. */ |
a80b95ba | 65 | DEF_VEC_O (oso_el); |
a80b95ba | 66 | |
2d33f7b8 TG |
67 | static void |
68 | macho_new_init (struct objfile *objfile) | |
69 | { | |
70 | } | |
71 | ||
72 | static void | |
73 | macho_symfile_init (struct objfile *objfile) | |
74 | { | |
75 | objfile->flags |= OBJF_REORDERED; | |
2d33f7b8 TG |
76 | } |
77 | ||
78 | /* Add a new OSO to the vector of OSO to load. */ | |
f192ea96 | 79 | |
a80b95ba | 80 | static void |
8b89a20a JB |
81 | macho_register_oso (VEC (oso_el) **oso_vector_ptr, |
82 | struct objfile *objfile, | |
e4c5f296 TG |
83 | asymbol **oso_sym, asymbol **end_sym, |
84 | unsigned int nbr_syms) | |
a80b95ba TG |
85 | { |
86 | oso_el el; | |
87 | ||
e4c5f296 TG |
88 | el.name = (*oso_sym)->name; |
89 | el.mtime = (*oso_sym)->value; | |
90 | el.oso_sym = oso_sym; | |
91 | el.end_sym = end_sym; | |
92 | el.nbr_syms = nbr_syms; | |
8b89a20a | 93 | VEC_safe_push (oso_el, *oso_vector_ptr, &el); |
a80b95ba TG |
94 | } |
95 | ||
e4c5f296 TG |
96 | /* Add symbol SYM to the minimal symbol table of OBJFILE. */ |
97 | ||
98 | static void | |
99 | macho_symtab_add_minsym (struct objfile *objfile, const asymbol *sym) | |
100 | { | |
101 | if (sym->name == NULL || *sym->name == '\0') | |
102 | { | |
103 | /* Skip names that don't exist (shouldn't happen), or names | |
104 | that are null strings (may happen). */ | |
105 | return; | |
106 | } | |
107 | ||
108 | if (sym->flags & (BSF_GLOBAL | BSF_LOCAL | BSF_WEAK)) | |
109 | { | |
110 | CORE_ADDR symaddr; | |
e4c5f296 TG |
111 | enum minimal_symbol_type ms_type; |
112 | ||
e4c5f296 TG |
113 | /* Bfd symbols are section relative. */ |
114 | symaddr = sym->value + sym->section->vma; | |
115 | ||
45dfa85a | 116 | if (sym->section == bfd_abs_section_ptr) |
e4c5f296 TG |
117 | ms_type = mst_abs; |
118 | else if (sym->section->flags & SEC_CODE) | |
119 | { | |
120 | if (sym->flags & (BSF_GLOBAL | BSF_WEAK)) | |
121 | ms_type = mst_text; | |
122 | else | |
123 | ms_type = mst_file_text; | |
124 | } | |
125 | else if (sym->section->flags & SEC_ALLOC) | |
126 | { | |
127 | if (sym->flags & (BSF_GLOBAL | BSF_WEAK)) | |
128 | { | |
129 | if (sym->section->flags & SEC_LOAD) | |
130 | ms_type = mst_data; | |
131 | else | |
132 | ms_type = mst_bss; | |
133 | } | |
134 | else if (sym->flags & BSF_LOCAL) | |
135 | { | |
136 | /* Not a special stabs-in-elf symbol, do regular | |
137 | symbol processing. */ | |
138 | if (sym->section->flags & SEC_LOAD) | |
139 | ms_type = mst_file_data; | |
140 | else | |
141 | ms_type = mst_file_bss; | |
142 | } | |
143 | else | |
144 | ms_type = mst_unknown; | |
145 | } | |
146 | else | |
147 | return; /* Skip this symbol. */ | |
148 | ||
149 | prim_record_minimal_symbol_and_info | |
65cf3563 TT |
150 | (sym->name, symaddr, ms_type, |
151 | gdb_bfd_section_index (objfile->obfd, sym->section), | |
e6dc44a8 | 152 | objfile); |
e4c5f296 TG |
153 | } |
154 | } | |
155 | ||
a80b95ba | 156 | /* Build the minimal symbol table from SYMBOL_TABLE of length |
e4c5f296 | 157 | NUMBER_OF_SYMBOLS for OBJFILE. Registers OSO filenames found. */ |
f192ea96 | 158 | |
a80b95ba TG |
159 | static void |
160 | macho_symtab_read (struct objfile *objfile, | |
8b89a20a JB |
161 | long number_of_symbols, asymbol **symbol_table, |
162 | VEC (oso_el) **oso_vector_ptr) | |
a80b95ba | 163 | { |
e4c5f296 TG |
164 | long i; |
165 | const asymbol *dir_so = NULL; | |
166 | const asymbol *file_so = NULL; | |
167 | asymbol **oso_file = NULL; | |
b0d32fb6 | 168 | unsigned int nbr_syms = 0; |
a80b95ba | 169 | |
e4c5f296 TG |
170 | /* Current state while reading stabs. */ |
171 | enum | |
172 | { | |
173 | /* Not within an SO part. Only non-debugging symbols should be present, | |
174 | and will be added to the minimal symbols table. */ | |
175 | S_NO_SO, | |
bb00b29d | 176 | |
e4c5f296 TG |
177 | /* First SO read. Introduce an SO section, and may be followed by a second |
178 | SO. The SO section should contain onl debugging symbols. */ | |
179 | S_FIRST_SO, | |
a80b95ba | 180 | |
e4c5f296 TG |
181 | /* Second non-null SO found, just after the first one. Means that the first |
182 | is in fact a directory name. */ | |
183 | S_SECOND_SO, | |
a80b95ba | 184 | |
e4c5f296 TG |
185 | /* Non-null OSO found. Debugging info are DWARF in this OSO file. */ |
186 | S_DWARF_FILE, | |
3188d986 | 187 | |
e4c5f296 TG |
188 | S_STAB_FILE |
189 | } state = S_NO_SO; | |
a80b95ba | 190 | |
e4c5f296 TG |
191 | for (i = 0; i < number_of_symbols; i++) |
192 | { | |
193 | const asymbol *sym = symbol_table[i]; | |
194 | bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym; | |
a80b95ba | 195 | |
e4c5f296 TG |
196 | switch (state) |
197 | { | |
198 | case S_NO_SO: | |
199 | if (mach_o_sym->n_type == N_SO) | |
200 | { | |
201 | /* Start of object stab. */ | |
202 | if (sym->name == NULL || sym->name[0] == 0) | |
203 | { | |
204 | /* Unexpected empty N_SO. */ | |
205 | complaint (&symfile_complaints, | |
206 | _("Unexpected empty N_SO stab")); | |
207 | } | |
208 | else | |
209 | { | |
210 | file_so = sym; | |
211 | dir_so = NULL; | |
212 | state = S_FIRST_SO; | |
213 | } | |
214 | } | |
215 | else if (sym->flags & BSF_DEBUGGING) | |
216 | { | |
13b8d0c6 TG |
217 | if (mach_o_sym->n_type == N_OPT) |
218 | { | |
219 | /* No complaint for OPT. */ | |
220 | break; | |
221 | } | |
222 | ||
e4c5f296 TG |
223 | /* Debugging symbols are not expected here. */ |
224 | complaint (&symfile_complaints, | |
13b8d0c6 | 225 | _("%s: Unexpected debug stab outside SO markers"), |
4262abfb | 226 | objfile_name (objfile)); |
e4c5f296 TG |
227 | } |
228 | else | |
229 | { | |
230 | /* Non-debugging symbols go to the minimal symbol table. */ | |
231 | macho_symtab_add_minsym (objfile, sym); | |
232 | } | |
233 | break; | |
a80b95ba | 234 | |
e4c5f296 TG |
235 | case S_FIRST_SO: |
236 | case S_SECOND_SO: | |
237 | if (mach_o_sym->n_type == N_SO) | |
238 | { | |
239 | if (sym->name == NULL || sym->name[0] == 0) | |
240 | { | |
241 | /* Unexpected empty N_SO. */ | |
242 | complaint (&symfile_complaints, _("Empty SO section")); | |
243 | state = S_NO_SO; | |
244 | } | |
245 | else if (state == S_FIRST_SO) | |
246 | { | |
247 | /* Second SO stab for the file name. */ | |
248 | dir_so = file_so; | |
249 | file_so = sym; | |
250 | state = S_SECOND_SO; | |
251 | } | |
252 | else | |
253 | complaint (&symfile_complaints, _("Three SO in a raw")); | |
254 | } | |
255 | else if (mach_o_sym->n_type == N_OSO) | |
256 | { | |
257 | if (sym->name == NULL || sym->name[0] == 0) | |
258 | { | |
259 | /* Empty OSO. Means that this file was compiled with | |
260 | stabs. */ | |
261 | state = S_STAB_FILE; | |
262 | warning (_("stabs debugging not supported for %s"), | |
263 | file_so->name); | |
264 | } | |
265 | else | |
266 | { | |
267 | /* Non-empty OSO for a Dwarf file. */ | |
268 | oso_file = symbol_table + i; | |
269 | nbr_syms = 0; | |
270 | state = S_DWARF_FILE; | |
271 | } | |
272 | } | |
273 | else | |
274 | complaint (&symfile_complaints, | |
275 | _("Unexpected stab after SO")); | |
276 | break; | |
a80b95ba | 277 | |
e4c5f296 TG |
278 | case S_STAB_FILE: |
279 | case S_DWARF_FILE: | |
280 | if (mach_o_sym->n_type == N_SO) | |
281 | { | |
282 | if (sym->name == NULL || sym->name[0] == 0) | |
283 | { | |
284 | /* End of file. */ | |
285 | if (state == S_DWARF_FILE) | |
8b89a20a JB |
286 | macho_register_oso (oso_vector_ptr, objfile, |
287 | oso_file, symbol_table + i, | |
e4c5f296 TG |
288 | nbr_syms); |
289 | state = S_NO_SO; | |
290 | } | |
291 | else | |
292 | { | |
293 | complaint (&symfile_complaints, _("Missing nul SO")); | |
294 | file_so = sym; | |
295 | dir_so = NULL; | |
296 | state = S_FIRST_SO; | |
297 | } | |
298 | } | |
299 | else if (sym->flags & BSF_DEBUGGING) | |
300 | { | |
301 | if (state == S_STAB_FILE) | |
302 | { | |
303 | /* FIXME: to be implemented. */ | |
304 | } | |
305 | else | |
306 | { | |
307 | switch (mach_o_sym->n_type) | |
308 | { | |
309 | case N_FUN: | |
310 | if (sym->name == NULL || sym->name[0] == 0) | |
311 | break; | |
312 | /* Fall through. */ | |
313 | case N_STSYM: | |
314 | /* Interesting symbol. */ | |
315 | nbr_syms++; | |
316 | break; | |
317 | case N_ENSYM: | |
318 | case N_BNSYM: | |
319 | case N_GSYM: | |
320 | break; | |
321 | default: | |
322 | complaint (&symfile_complaints, | |
323 | _("unhandled stab for dwarf OSO file")); | |
324 | break; | |
325 | } | |
326 | } | |
327 | } | |
328 | else | |
329 | complaint (&symfile_complaints, | |
330 | _("non-debugging symbol within SO")); | |
331 | break; | |
332 | } | |
a80b95ba TG |
333 | } |
334 | ||
e4c5f296 TG |
335 | if (state != S_NO_SO) |
336 | complaint (&symfile_complaints, _("missing nul SO")); | |
a80b95ba TG |
337 | } |
338 | ||
339 | /* If NAME describes an archive member (ie: ARCHIVE '(' MEMBER ')'), | |
340 | returns the length of the archive name. | |
341 | Returns -1 otherwise. */ | |
f192ea96 | 342 | |
a80b95ba TG |
343 | static int |
344 | get_archive_prefix_len (const char *name) | |
345 | { | |
2e7bf1d7 | 346 | const char *lparen; |
a80b95ba TG |
347 | int name_len = strlen (name); |
348 | ||
349 | if (name_len == 0 || name[name_len - 1] != ')') | |
350 | return -1; | |
e4c5f296 | 351 | |
a80b95ba TG |
352 | lparen = strrchr (name, '('); |
353 | if (lparen == NULL || lparen == name) | |
354 | return -1; | |
355 | return lparen - name; | |
356 | } | |
357 | ||
e4c5f296 TG |
358 | /* Compare function to qsort OSOs, so that members of a library are |
359 | gathered. */ | |
360 | ||
f192ea96 TG |
361 | static int |
362 | oso_el_compare_name (const void *vl, const void *vr) | |
363 | { | |
364 | const oso_el *l = (const oso_el *)vl; | |
365 | const oso_el *r = (const oso_el *)vr; | |
366 | ||
367 | return strcmp (l->name, r->name); | |
368 | } | |
369 | ||
e4c5f296 TG |
370 | /* Hash table entry structure for the stabs symbols in the main object file. |
371 | This is used to speed up lookup for symbols in the OSO. */ | |
38947cca | 372 | |
e4c5f296 TG |
373 | struct macho_sym_hash_entry |
374 | { | |
375 | struct bfd_hash_entry base; | |
376 | const asymbol *sym; | |
377 | }; | |
38947cca | 378 | |
e4c5f296 | 379 | /* Routine to create an entry in the hash table. */ |
38947cca | 380 | |
e4c5f296 TG |
381 | static struct bfd_hash_entry * |
382 | macho_sym_hash_newfunc (struct bfd_hash_entry *entry, | |
383 | struct bfd_hash_table *table, | |
384 | const char *string) | |
38947cca | 385 | { |
e4c5f296 TG |
386 | struct macho_sym_hash_entry *ret = (struct macho_sym_hash_entry *) entry; |
387 | ||
388 | /* Allocate the structure if it has not already been allocated by a | |
389 | subclass. */ | |
390 | if (ret == NULL) | |
391 | ret = (struct macho_sym_hash_entry *) bfd_hash_allocate (table, | |
392 | sizeof (* ret)); | |
393 | if (ret == NULL) | |
394 | return NULL; | |
38947cca | 395 | |
e4c5f296 TG |
396 | /* Call the allocation method of the superclass. */ |
397 | ret = (struct macho_sym_hash_entry *) | |
398 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
38947cca | 399 | |
e4c5f296 | 400 | if (ret) |
38947cca | 401 | { |
e4c5f296 TG |
402 | /* Initialize the local fields. */ |
403 | ret->sym = NULL; | |
404 | } | |
38947cca | 405 | |
e4c5f296 TG |
406 | return (struct bfd_hash_entry *) ret; |
407 | } | |
38947cca | 408 | |
e4c5f296 TG |
409 | /* Get the value of SYM from the minimal symtab of MAIN_OBJFILE. This is used |
410 | to get the value of global and common symbols. */ | |
38947cca | 411 | |
e4c5f296 TG |
412 | static CORE_ADDR |
413 | macho_resolve_oso_sym_with_minsym (struct objfile *main_objfile, asymbol *sym) | |
414 | { | |
415 | /* For common symbol and global symbols, use the min symtab. */ | |
3b7344d5 | 416 | struct bound_minimal_symbol msym; |
e4c5f296 TG |
417 | const char *name = sym->name; |
418 | ||
419 | if (name[0] == bfd_get_symbol_leading_char (main_objfile->obfd)) | |
420 | ++name; | |
421 | msym = lookup_minimal_symbol (name, NULL, main_objfile); | |
3b7344d5 | 422 | if (msym.minsym == NULL) |
e4c5f296 TG |
423 | { |
424 | warning (_("can't find symbol '%s' in minsymtab"), name); | |
425 | return 0; | |
38947cca | 426 | } |
e4c5f296 | 427 | else |
77e371c0 | 428 | return BMSYMBOL_VALUE_ADDRESS (msym); |
38947cca JB |
429 | } |
430 | ||
e4c5f296 | 431 | /* Add oso file OSO/ABFD as a symbol file. */ |
f192ea96 TG |
432 | |
433 | static void | |
24ba069a | 434 | macho_add_oso_symfile (oso_el *oso, bfd *abfd, const char *name, |
bdfed3bc | 435 | struct objfile *main_objfile, int symfile_flags) |
f192ea96 | 436 | { |
e4c5f296 | 437 | int storage; |
f192ea96 | 438 | int i; |
e4c5f296 TG |
439 | asymbol **symbol_table; |
440 | asymbol **symp; | |
441 | struct bfd_hash_table table; | |
442 | int nbr_sections; | |
8ac244b4 | 443 | struct cleanup *cleanup; |
e4c5f296 TG |
444 | |
445 | /* Per section flag to mark which section have been rebased. */ | |
446 | unsigned char *sections_rebased; | |
f192ea96 TG |
447 | |
448 | if (mach_o_debug_level > 0) | |
e4c5f296 TG |
449 | printf_unfiltered |
450 | (_("Loading debugging symbols from oso: %s\n"), oso->name); | |
2d33f7b8 | 451 | |
f192ea96 TG |
452 | if (!bfd_check_format (abfd, bfd_object)) |
453 | { | |
454 | warning (_("`%s': can't read symbols: %s."), oso->name, | |
455 | bfd_errmsg (bfd_get_error ())); | |
cbb099e8 | 456 | gdb_bfd_unref (abfd); |
f192ea96 TG |
457 | return; |
458 | } | |
459 | ||
e4c5f296 TG |
460 | if (abfd->my_archive == NULL && oso->mtime != bfd_get_mtime (abfd)) |
461 | { | |
462 | warning (_("`%s': file time stamp mismatch."), oso->name); | |
cbb099e8 | 463 | gdb_bfd_unref (abfd); |
e4c5f296 TG |
464 | return; |
465 | } | |
466 | ||
467 | if (!bfd_hash_table_init_n (&table, macho_sym_hash_newfunc, | |
468 | sizeof (struct macho_sym_hash_entry), | |
469 | oso->nbr_syms)) | |
470 | { | |
471 | warning (_("`%s': can't create hash table"), oso->name); | |
cbb099e8 | 472 | gdb_bfd_unref (abfd); |
e4c5f296 TG |
473 | return; |
474 | } | |
475 | ||
f192ea96 | 476 | bfd_set_cacheable (abfd, 1); |
f18b4cab | 477 | |
e4c5f296 TG |
478 | /* Read symbols table. */ |
479 | storage = bfd_get_symtab_upper_bound (abfd); | |
480 | symbol_table = (asymbol **) xmalloc (storage); | |
481 | bfd_canonicalize_symtab (abfd, symbol_table); | |
f192ea96 | 482 | |
e4c5f296 TG |
483 | /* Init section flags. */ |
484 | nbr_sections = bfd_count_sections (abfd); | |
485 | sections_rebased = (unsigned char *) alloca (nbr_sections); | |
486 | for (i = 0; i < nbr_sections; i++) | |
487 | sections_rebased[i] = 0; | |
f192ea96 | 488 | |
e4c5f296 TG |
489 | /* Put symbols for the OSO file in the hash table. */ |
490 | for (symp = oso->oso_sym; symp != oso->end_sym; symp++) | |
f192ea96 | 491 | { |
e4c5f296 TG |
492 | const asymbol *sym = *symp; |
493 | bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym; | |
f18b4cab | 494 | |
e4c5f296 | 495 | switch (mach_o_sym->n_type) |
f18b4cab | 496 | { |
e4c5f296 TG |
497 | case N_ENSYM: |
498 | case N_BNSYM: | |
499 | case N_GSYM: | |
500 | sym = NULL; | |
501 | break; | |
502 | case N_FUN: | |
503 | if (sym->name == NULL || sym->name[0] == 0) | |
504 | sym = NULL; | |
505 | break; | |
506 | case N_STSYM: | |
507 | break; | |
508 | default: | |
509 | sym = NULL; | |
510 | break; | |
511 | } | |
512 | if (sym != NULL) | |
513 | { | |
514 | struct macho_sym_hash_entry *ent; | |
515 | ||
516 | ent = (struct macho_sym_hash_entry *) | |
517 | bfd_hash_lookup (&table, sym->name, TRUE, FALSE); | |
518 | if (ent->sym != NULL) | |
519 | complaint (&symfile_complaints, | |
520 | _("Duplicated symbol %s in symbol table"), sym->name); | |
521 | else | |
f18b4cab | 522 | { |
e4c5f296 TG |
523 | if (mach_o_debug_level > 4) |
524 | { | |
525 | struct gdbarch *arch = get_objfile_arch (main_objfile); | |
526 | printf_unfiltered | |
527 | (_("Adding symbol %s (addr: %s)\n"), | |
528 | sym->name, paddress (arch, sym->value)); | |
529 | } | |
530 | ent->sym = sym; | |
f18b4cab | 531 | } |
f18b4cab | 532 | } |
e4c5f296 | 533 | } |
f18b4cab | 534 | |
e4c5f296 TG |
535 | /* Relocate symbols of the OSO. */ |
536 | for (i = 0; symbol_table[i]; i++) | |
537 | { | |
538 | asymbol *sym = symbol_table[i]; | |
539 | bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym; | |
540 | ||
541 | if (mach_o_sym->n_type & BFD_MACH_O_N_STAB) | |
542 | continue; | |
543 | if ((mach_o_sym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF | |
544 | && sym->value != 0) | |
f18b4cab | 545 | { |
e4c5f296 TG |
546 | /* For common symbol use the min symtab and modify the OSO |
547 | symbol table. */ | |
548 | CORE_ADDR res; | |
549 | ||
550 | res = macho_resolve_oso_sym_with_minsym (main_objfile, sym); | |
551 | if (res != 0) | |
552 | { | |
45dfa85a | 553 | sym->section = bfd_com_section_ptr; |
e4c5f296 TG |
554 | sym->value = res; |
555 | } | |
f18b4cab | 556 | } |
e4c5f296 TG |
557 | else if ((mach_o_sym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT) |
558 | { | |
559 | /* Normal symbol. */ | |
560 | asection *sec = sym->section; | |
561 | bfd_mach_o_section *msec; | |
562 | unsigned int sec_type; | |
563 | ||
564 | /* Skip buggy ones. */ | |
565 | if (sec == NULL || sections_rebased[sec->index] != 0) | |
566 | continue; | |
567 | ||
568 | /* Only consider regular, non-debugging sections. */ | |
569 | msec = bfd_mach_o_get_mach_o_section (sec); | |
570 | sec_type = msec->flags & BFD_MACH_O_SECTION_TYPE_MASK; | |
571 | if ((sec_type == BFD_MACH_O_S_REGULAR | |
572 | || sec_type == BFD_MACH_O_S_ZEROFILL) | |
573 | && (msec->flags & BFD_MACH_O_S_ATTR_DEBUG) == 0) | |
574 | { | |
575 | CORE_ADDR addr = 0; | |
576 | ||
577 | if ((mach_o_sym->n_type & BFD_MACH_O_N_EXT) != 0) | |
578 | { | |
579 | /* Use the min symtab for global symbols. */ | |
580 | addr = macho_resolve_oso_sym_with_minsym (main_objfile, sym); | |
581 | } | |
582 | else | |
583 | { | |
584 | struct macho_sym_hash_entry *ent; | |
585 | ||
586 | ent = (struct macho_sym_hash_entry *) | |
587 | bfd_hash_lookup (&table, sym->name, FALSE, FALSE); | |
588 | if (ent != NULL) | |
589 | addr = bfd_asymbol_value (ent->sym); | |
590 | } | |
f18b4cab | 591 | |
e4c5f296 TG |
592 | /* Adjust the section. */ |
593 | if (addr != 0) | |
594 | { | |
595 | CORE_ADDR res = addr - sym->value; | |
596 | ||
597 | if (mach_o_debug_level > 3) | |
598 | { | |
599 | struct gdbarch *arch = get_objfile_arch (main_objfile); | |
600 | printf_unfiltered | |
601 | (_("resolve sect %s with %s (set to %s)\n"), | |
602 | sec->name, sym->name, | |
603 | paddress (arch, res)); | |
604 | } | |
605 | bfd_set_section_vma (abfd, sec, res); | |
606 | sections_rebased[sec->index] = 1; | |
607 | } | |
608 | } | |
609 | else | |
610 | { | |
611 | /* Mark the section as never rebased. */ | |
612 | sections_rebased[sec->index] = 2; | |
613 | } | |
614 | } | |
f192ea96 TG |
615 | } |
616 | ||
e4c5f296 | 617 | bfd_hash_table_free (&table); |
38947cca | 618 | |
bdfed3bc TG |
619 | /* We need to clear SYMFILE_MAINLINE to avoid interractive question |
620 | from symfile.c:symbol_file_add_with_addrs_or_offsets. */ | |
8ac244b4 | 621 | cleanup = make_cleanup_bfd_unref (abfd); |
e4c5f296 | 622 | symbol_file_add_from_bfd |
24ba069a | 623 | (abfd, name, symfile_flags & ~(SYMFILE_MAINLINE | SYMFILE_VERBOSE), NULL, |
bdfed3bc | 624 | main_objfile->flags & (OBJF_REORDERED | OBJF_SHARED |
63524580 JK |
625 | | OBJF_READNOW | OBJF_USERLOADED), |
626 | main_objfile); | |
8ac244b4 | 627 | do_cleanups (cleanup); |
f192ea96 TG |
628 | } |
629 | ||
8b89a20a JB |
630 | /* Read symbols from the vector of oso files. |
631 | ||
632 | Note that this function sorts OSO_VECTOR_PTR. */ | |
f192ea96 | 633 | |
a80b95ba | 634 | static void |
8b89a20a JB |
635 | macho_symfile_read_all_oso (VEC (oso_el) **oso_vector_ptr, |
636 | struct objfile *main_objfile, | |
637 | int symfile_flags) | |
a80b95ba TG |
638 | { |
639 | int ix; | |
8b89a20a | 640 | VEC (oso_el) *vec = *oso_vector_ptr; |
a80b95ba | 641 | oso_el *oso; |
a4453b7e | 642 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
a80b95ba | 643 | |
f192ea96 TG |
644 | /* Sort oso by name so that files from libraries are gathered. */ |
645 | qsort (VEC_address (oso_el, vec), VEC_length (oso_el, vec), | |
646 | sizeof (oso_el), oso_el_compare_name); | |
a80b95ba | 647 | |
f192ea96 | 648 | for (ix = 0; VEC_iterate (oso_el, vec, ix, oso);) |
a80b95ba | 649 | { |
a80b95ba | 650 | int pfx_len; |
e4c5f296 | 651 | |
a80b95ba TG |
652 | /* Check if this is a library name. */ |
653 | pfx_len = get_archive_prefix_len (oso->name); | |
654 | if (pfx_len > 0) | |
655 | { | |
656 | bfd *archive_bfd; | |
657 | bfd *member_bfd; | |
f192ea96 TG |
658 | char *archive_name = XNEWVEC (char, pfx_len + 1); |
659 | int last_ix; | |
660 | oso_el *oso2; | |
661 | int ix2; | |
a80b95ba | 662 | |
a80b95ba TG |
663 | memcpy (archive_name, oso->name, pfx_len); |
664 | archive_name[pfx_len] = '\0'; | |
665 | ||
a4453b7e TT |
666 | make_cleanup (xfree, archive_name); |
667 | ||
f192ea96 TG |
668 | /* Compute number of oso for this archive. */ |
669 | for (last_ix = ix; | |
670 | VEC_iterate (oso_el, vec, last_ix, oso2); last_ix++) | |
671 | { | |
672 | if (strncmp (oso2->name, archive_name, pfx_len) != 0) | |
673 | break; | |
674 | } | |
e4c5f296 | 675 | |
a80b95ba | 676 | /* Open the archive and check the format. */ |
1c00ec6b | 677 | archive_bfd = gdb_bfd_open (archive_name, gnutarget, -1); |
a80b95ba TG |
678 | if (archive_bfd == NULL) |
679 | { | |
680 | warning (_("Could not open OSO archive file \"%s\""), | |
681 | archive_name); | |
f192ea96 | 682 | ix = last_ix; |
a80b95ba TG |
683 | continue; |
684 | } | |
685 | if (!bfd_check_format (archive_bfd, bfd_archive)) | |
686 | { | |
687 | warning (_("OSO archive file \"%s\" not an archive."), | |
688 | archive_name); | |
cbb099e8 | 689 | gdb_bfd_unref (archive_bfd); |
f192ea96 | 690 | ix = last_ix; |
a80b95ba TG |
691 | continue; |
692 | } | |
a4453b7e | 693 | |
64c31149 | 694 | member_bfd = gdb_bfd_openr_next_archived_file (archive_bfd, NULL); |
e4c5f296 | 695 | |
a80b95ba TG |
696 | if (member_bfd == NULL) |
697 | { | |
698 | warning (_("Could not read archive members out of " | |
699 | "OSO archive \"%s\""), archive_name); | |
cbb099e8 | 700 | gdb_bfd_unref (archive_bfd); |
f192ea96 | 701 | ix = last_ix; |
a80b95ba TG |
702 | continue; |
703 | } | |
f192ea96 TG |
704 | |
705 | /* Load all oso in this library. */ | |
a80b95ba TG |
706 | while (member_bfd != NULL) |
707 | { | |
f192ea96 | 708 | bfd *prev; |
a80b95ba | 709 | const char *member_name = member_bfd->filename; |
f192ea96 TG |
710 | int member_len = strlen (member_name); |
711 | ||
ab7e10a0 | 712 | /* If this member is referenced, add it as a symfile. */ |
f192ea96 TG |
713 | for (ix2 = ix; ix2 < last_ix; ix2++) |
714 | { | |
715 | oso2 = VEC_index (oso_el, vec, ix2); | |
716 | ||
717 | if (oso2->name | |
718 | && strlen (oso2->name) == pfx_len + member_len + 2 | |
719 | && !memcmp (member_name, oso2->name + pfx_len + 1, | |
720 | member_len)) | |
721 | { | |
bdfed3bc | 722 | macho_add_oso_symfile (oso2, member_bfd, |
24ba069a | 723 | bfd_get_filename (member_bfd), |
bdfed3bc | 724 | main_objfile, symfile_flags); |
f192ea96 TG |
725 | oso2->name = NULL; |
726 | break; | |
727 | } | |
728 | } | |
729 | ||
730 | prev = member_bfd; | |
64c31149 TT |
731 | member_bfd = gdb_bfd_openr_next_archived_file (archive_bfd, |
732 | member_bfd); | |
ab7e10a0 TG |
733 | |
734 | /* Free previous member if not referenced by an oso. */ | |
735 | if (ix2 >= last_ix) | |
cbb099e8 | 736 | gdb_bfd_unref (prev); |
a80b95ba | 737 | } |
f192ea96 TG |
738 | for (ix2 = ix; ix2 < last_ix; ix2++) |
739 | { | |
740 | oso_el *oso2 = VEC_index (oso_el, vec, ix2); | |
741 | ||
742 | if (oso2->name != NULL) | |
743 | warning (_("Could not find specified archive member " | |
744 | "for OSO name \"%s\""), oso->name); | |
745 | } | |
746 | ix = last_ix; | |
a80b95ba TG |
747 | } |
748 | else | |
749 | { | |
f192ea96 | 750 | bfd *abfd; |
a80b95ba | 751 | |
1c00ec6b | 752 | abfd = gdb_bfd_open (oso->name, gnutarget, -1); |
a80b95ba | 753 | if (!abfd) |
f192ea96 TG |
754 | warning (_("`%s': can't open to read symbols: %s."), oso->name, |
755 | bfd_errmsg (bfd_get_error ())); | |
756 | else | |
24ba069a JK |
757 | macho_add_oso_symfile (oso, abfd, oso->name, main_objfile, |
758 | symfile_flags); | |
f192ea96 TG |
759 | |
760 | ix++; | |
761 | } | |
762 | } | |
763 | ||
a4453b7e | 764 | do_cleanups (cleanup); |
a80b95ba TG |
765 | } |
766 | ||
767 | /* DSYM (debug symbols) files contain the debug info of an executable. | |
768 | This is a separate file created by dsymutil(1) and is similar to debug | |
769 | link feature on ELF. | |
770 | DSYM files are located in a subdirectory. Append DSYM_SUFFIX to the | |
771 | executable name and the executable base name to get the DSYM file name. */ | |
772 | #define DSYM_SUFFIX ".dSYM/Contents/Resources/DWARF/" | |
773 | ||
24ba069a JK |
774 | /* Check if a dsym file exists for OBJFILE. If so, returns a bfd for it |
775 | and return *FILENAMEP with its original xmalloc-ated filename. | |
776 | Return NULL if no valid dsym file is found (FILENAMEP is not used in | |
777 | such case). */ | |
f192ea96 | 778 | |
a80b95ba | 779 | static bfd * |
24ba069a | 780 | macho_check_dsym (struct objfile *objfile, char **filenamep) |
a80b95ba | 781 | { |
4262abfb | 782 | size_t name_len = strlen (objfile_name (objfile)); |
a80b95ba | 783 | size_t dsym_len = strlen (DSYM_SUFFIX); |
4262abfb | 784 | const char *base_name = lbasename (objfile_name (objfile)); |
a80b95ba | 785 | size_t base_len = strlen (base_name); |
224c3ddb | 786 | char *dsym_filename = (char *) alloca (name_len + dsym_len + base_len + 1); |
a80b95ba | 787 | bfd *dsym_bfd; |
65ccb109 TG |
788 | bfd_mach_o_load_command *main_uuid; |
789 | bfd_mach_o_load_command *dsym_uuid; | |
a80b95ba | 790 | |
4262abfb | 791 | strcpy (dsym_filename, objfile_name (objfile)); |
a80b95ba TG |
792 | strcpy (dsym_filename + name_len, DSYM_SUFFIX); |
793 | strcpy (dsym_filename + name_len + dsym_len, base_name); | |
794 | ||
795 | if (access (dsym_filename, R_OK) != 0) | |
796 | return NULL; | |
797 | ||
65ccb109 TG |
798 | if (bfd_mach_o_lookup_command (objfile->obfd, |
799 | BFD_MACH_O_LC_UUID, &main_uuid) == 0) | |
a80b95ba | 800 | { |
4262abfb | 801 | warning (_("can't find UUID in %s"), objfile_name (objfile)); |
a80b95ba TG |
802 | return NULL; |
803 | } | |
64c31149 | 804 | dsym_bfd = gdb_bfd_openr (dsym_filename, gnutarget); |
a80b95ba TG |
805 | if (dsym_bfd == NULL) |
806 | { | |
807 | warning (_("can't open dsym file %s"), dsym_filename); | |
a80b95ba TG |
808 | return NULL; |
809 | } | |
810 | ||
811 | if (!bfd_check_format (dsym_bfd, bfd_object)) | |
812 | { | |
cbb099e8 | 813 | gdb_bfd_unref (dsym_bfd); |
a80b95ba | 814 | warning (_("bad dsym file format: %s"), bfd_errmsg (bfd_get_error ())); |
a80b95ba TG |
815 | return NULL; |
816 | } | |
817 | ||
65ccb109 TG |
818 | if (bfd_mach_o_lookup_command (dsym_bfd, |
819 | BFD_MACH_O_LC_UUID, &dsym_uuid) == 0) | |
a80b95ba TG |
820 | { |
821 | warning (_("can't find UUID in %s"), dsym_filename); | |
cbb099e8 | 822 | gdb_bfd_unref (dsym_bfd); |
a80b95ba TG |
823 | return NULL; |
824 | } | |
65ccb109 TG |
825 | if (memcmp (dsym_uuid->command.uuid.uuid, main_uuid->command.uuid.uuid, |
826 | sizeof (main_uuid->command.uuid.uuid))) | |
a80b95ba | 827 | { |
4262abfb JK |
828 | warning (_("dsym file UUID doesn't match the one in %s"), |
829 | objfile_name (objfile)); | |
cbb099e8 | 830 | gdb_bfd_unref (dsym_bfd); |
a80b95ba TG |
831 | return NULL; |
832 | } | |
24ba069a | 833 | *filenamep = xstrdup (dsym_filename); |
a80b95ba | 834 | return dsym_bfd; |
a80b95ba TG |
835 | } |
836 | ||
837 | static void | |
f4352531 | 838 | macho_symfile_read (struct objfile *objfile, int symfile_flags) |
a80b95ba TG |
839 | { |
840 | bfd *abfd = objfile->obfd; | |
a80b95ba TG |
841 | CORE_ADDR offset; |
842 | long storage_needed; | |
843 | bfd *dsym_bfd; | |
8b89a20a JB |
844 | VEC (oso_el) *oso_vector = NULL; |
845 | struct cleanup *old_chain = make_cleanup (VEC_cleanup (oso_el), &oso_vector); | |
a80b95ba | 846 | |
a80b95ba TG |
847 | /* Get symbols from the symbol table only if the file is an executable. |
848 | The symbol table of object files is not relocated and is expected to | |
849 | be in the executable. */ | |
cf1061c0 | 850 | if (bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC)) |
a80b95ba | 851 | { |
24ba069a JK |
852 | char *dsym_filename; |
853 | ||
a80b95ba TG |
854 | /* Process the normal symbol table first. */ |
855 | storage_needed = bfd_get_symtab_upper_bound (objfile->obfd); | |
856 | if (storage_needed < 0) | |
857 | error (_("Can't read symbols from %s: %s"), | |
858 | bfd_get_filename (objfile->obfd), | |
859 | bfd_errmsg (bfd_get_error ())); | |
860 | ||
861 | if (storage_needed > 0) | |
862 | { | |
863 | asymbol **symbol_table; | |
864 | long symcount; | |
865 | ||
866 | symbol_table = (asymbol **) xmalloc (storage_needed); | |
f6aea118 | 867 | make_cleanup (xfree, symbol_table); |
e4c5f296 TG |
868 | |
869 | init_minimal_symbol_collection (); | |
8b89a20a | 870 | make_cleanup_discard_minimal_symbols (); |
e4c5f296 | 871 | |
a80b95ba | 872 | symcount = bfd_canonicalize_symtab (objfile->obfd, symbol_table); |
e4c5f296 | 873 | |
a80b95ba TG |
874 | if (symcount < 0) |
875 | error (_("Can't read symbols from %s: %s"), | |
876 | bfd_get_filename (objfile->obfd), | |
877 | bfd_errmsg (bfd_get_error ())); | |
e4c5f296 | 878 | |
8b89a20a | 879 | macho_symtab_read (objfile, symcount, symbol_table, &oso_vector); |
e4c5f296 TG |
880 | |
881 | install_minimal_symbols (objfile); | |
a80b95ba | 882 | } |
a80b95ba | 883 | |
cf1061c0 TG |
884 | /* Try to read .eh_frame / .debug_frame. */ |
885 | /* First, locate these sections. We ignore the result status | |
886 | as it only checks for debug info. */ | |
251d32d9 | 887 | dwarf2_has_info (objfile, NULL); |
cf1061c0 | 888 | dwarf2_build_frame_info (objfile); |
e4c5f296 | 889 | |
a80b95ba | 890 | /* Check for DSYM file. */ |
24ba069a | 891 | dsym_bfd = macho_check_dsym (objfile, &dsym_filename); |
a80b95ba TG |
892 | if (dsym_bfd != NULL) |
893 | { | |
894 | int ix; | |
895 | oso_el *oso; | |
6414f3fd | 896 | struct bfd_section *asect, *dsect; |
a80b95ba | 897 | |
24ba069a JK |
898 | make_cleanup (xfree, dsym_filename); |
899 | ||
a80b95ba TG |
900 | if (mach_o_debug_level > 0) |
901 | printf_unfiltered (_("dsym file found\n")); | |
902 | ||
6414f3fd TG |
903 | /* Set dsym section size. */ |
904 | for (asect = objfile->obfd->sections, dsect = dsym_bfd->sections; | |
905 | asect && dsect; | |
906 | asect = asect->next, dsect = dsect->next) | |
907 | { | |
908 | if (strcmp (asect->name, dsect->name) != 0) | |
909 | break; | |
910 | bfd_set_section_size (dsym_bfd, dsect, | |
911 | bfd_get_section_size (asect)); | |
912 | } | |
913 | ||
2480cfa0 | 914 | /* Add the dsym file as a separate file. */ |
8b89a20a | 915 | make_cleanup_bfd_unref (dsym_bfd); |
24ba069a JK |
916 | symbol_file_add_separate (dsym_bfd, dsym_filename, symfile_flags, |
917 | objfile); | |
e4c5f296 | 918 | |
cf1061c0 | 919 | /* Don't try to read dwarf2 from main file or shared libraries. */ |
8b89a20a | 920 | do_cleanups (old_chain); |
2480cfa0 | 921 | return; |
a80b95ba TG |
922 | } |
923 | } | |
924 | ||
251d32d9 | 925 | if (dwarf2_has_info (objfile, NULL)) |
a80b95ba TG |
926 | { |
927 | /* DWARF 2 sections */ | |
f29dff0a | 928 | dwarf2_build_psymtabs (objfile); |
a80b95ba TG |
929 | } |
930 | ||
a80b95ba TG |
931 | /* Then the oso. */ |
932 | if (oso_vector != NULL) | |
8b89a20a JB |
933 | macho_symfile_read_all_oso (&oso_vector, objfile, symfile_flags); |
934 | ||
935 | do_cleanups (old_chain); | |
a80b95ba TG |
936 | } |
937 | ||
f18b4cab TG |
938 | static bfd_byte * |
939 | macho_symfile_relocate (struct objfile *objfile, asection *sectp, | |
940 | bfd_byte *buf) | |
941 | { | |
942 | bfd *abfd = objfile->obfd; | |
943 | ||
944 | /* We're only interested in sections with relocation | |
945 | information. */ | |
946 | if ((sectp->flags & SEC_RELOC) == 0) | |
947 | return NULL; | |
948 | ||
949 | if (mach_o_debug_level > 0) | |
950 | printf_unfiltered (_("Relocate section '%s' of %s\n"), | |
4262abfb | 951 | sectp->name, objfile_name (objfile)); |
f18b4cab | 952 | |
f18b4cab TG |
953 | return bfd_simple_get_relocated_section_contents (abfd, sectp, buf, NULL); |
954 | } | |
955 | ||
a80b95ba TG |
956 | static void |
957 | macho_symfile_finish (struct objfile *objfile) | |
958 | { | |
959 | } | |
960 | ||
961 | static void | |
962 | macho_symfile_offsets (struct objfile *objfile, | |
66f65e2b | 963 | const struct section_addr_info *addrs) |
a80b95ba TG |
964 | { |
965 | unsigned int i; | |
966 | unsigned int num_sections; | |
967 | struct obj_section *osect; | |
968 | ||
969 | /* Allocate section_offsets. */ | |
970 | objfile->num_sections = bfd_count_sections (objfile->obfd); | |
971 | objfile->section_offsets = (struct section_offsets *) | |
972 | obstack_alloc (&objfile->objfile_obstack, | |
973 | SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)); | |
974 | memset (objfile->section_offsets, 0, | |
975 | SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)); | |
976 | ||
977 | /* This code is run when we first add the objfile with | |
978 | symfile_add_with_addrs_or_offsets, when "addrs" not "offsets" are | |
979 | passed in. The place in symfile.c where the addrs are applied | |
980 | depends on the addrs having section names. But in the dyld code | |
981 | we build an anonymous array of addrs, so that code is a no-op. | |
982 | Because of that, we have to apply the addrs to the sections here. | |
983 | N.B. if an objfile slides after we've already created it, then it | |
984 | goes through objfile_relocate. */ | |
985 | ||
986 | for (i = 0; i < addrs->num_sections; i++) | |
987 | { | |
a80b95ba TG |
988 | ALL_OBJFILE_OSECTIONS (objfile, osect) |
989 | { | |
990 | const char *bfd_sect_name = osect->the_bfd_section->name; | |
991 | ||
992 | if (strcmp (bfd_sect_name, addrs->other[i].name) == 0) | |
993 | { | |
994 | obj_section_offset (osect) = addrs->other[i].addr; | |
995 | break; | |
996 | } | |
997 | } | |
998 | } | |
999 | ||
1000 | objfile->sect_index_text = 0; | |
1001 | ||
1002 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
1003 | { | |
1004 | const char *bfd_sect_name = osect->the_bfd_section->name; | |
65cf3563 | 1005 | int sect_index = osect - objfile->sections;; |
e4c5f296 | 1006 | |
61012eef | 1007 | if (startswith (bfd_sect_name, "LC_SEGMENT.")) |
cf1061c0 TG |
1008 | bfd_sect_name += 11; |
1009 | if (strcmp (bfd_sect_name, "__TEXT") == 0 | |
1010 | || strcmp (bfd_sect_name, "__TEXT.__text") == 0) | |
a80b95ba TG |
1011 | objfile->sect_index_text = sect_index; |
1012 | } | |
1013 | } | |
1014 | ||
00b5771c | 1015 | static const struct sym_fns macho_sym_fns = { |
3e43a32a MS |
1016 | macho_new_init, /* init anything gbl to entire symtab */ |
1017 | macho_symfile_init, /* read initial info, setup for sym_read() */ | |
1018 | macho_symfile_read, /* read a symbol file into symtab */ | |
b11896a5 | 1019 | NULL, /* sym_read_psymbols */ |
3e43a32a MS |
1020 | macho_symfile_finish, /* finished with file, cleanup */ |
1021 | macho_symfile_offsets, /* xlate external to internal form */ | |
1022 | default_symfile_segments, /* Get segment information from a file. */ | |
1023 | NULL, | |
1024 | macho_symfile_relocate, /* Relocate a debug section. */ | |
55aa24fb | 1025 | NULL, /* sym_get_probes */ |
00b5771c | 1026 | &psym_functions |
a80b95ba TG |
1027 | }; |
1028 | ||
c381a3f6 JB |
1029 | /* -Wmissing-prototypes */ |
1030 | extern initialize_file_ftype _initialize_machoread; | |
1031 | ||
a80b95ba | 1032 | void |
dd9aa048 | 1033 | _initialize_machoread (void) |
a80b95ba | 1034 | { |
c256e171 | 1035 | add_symtab_fns (bfd_target_mach_o_flavour, &macho_sym_fns); |
a80b95ba | 1036 | |
ccce17b0 YQ |
1037 | add_setshow_zuinteger_cmd ("mach-o", class_obscure, |
1038 | &mach_o_debug_level, | |
1039 | _("Set if printing Mach-O symbols processing."), | |
1040 | _("Show if printing Mach-O symbols processing."), | |
1041 | NULL, NULL, NULL, | |
1042 | &setdebuglist, &showdebuglist); | |
a80b95ba | 1043 | } |