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cf1061c0 TG |
1 | /* Handle Darwin shared libraries for GDB, the GNU Debugger. |
2 | ||
0b302171 | 3 | Copyright (C) 2009-2012 Free Software Foundation, Inc. |
cf1061c0 TG |
4 | |
5 | This file is part of GDB. | |
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 3 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 | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | ||
22 | #include "symtab.h" | |
23 | #include "bfd.h" | |
24 | #include "symfile.h" | |
25 | #include "objfiles.h" | |
26 | #include "gdbcore.h" | |
27 | #include "target.h" | |
28 | #include "inferior.h" | |
fb14de7b | 29 | #include "regcache.h" |
cf1061c0 | 30 | #include "gdbthread.h" |
cbb099e8 | 31 | #include "gdb_bfd.h" |
cf1061c0 TG |
32 | |
33 | #include "gdb_assert.h" | |
34 | ||
35 | #include "solist.h" | |
36 | #include "solib.h" | |
37 | #include "solib-svr4.h" | |
38 | ||
39 | #include "bfd-target.h" | |
40 | #include "elf-bfd.h" | |
41 | #include "exec.h" | |
42 | #include "auxv.h" | |
43 | #include "exceptions.h" | |
44 | #include "mach-o.h" | |
8544a150 | 45 | #include "mach-o/external.h" |
cf1061c0 TG |
46 | |
47 | struct gdb_dyld_image_info | |
48 | { | |
49 | /* Base address (which corresponds to the Mach-O header). */ | |
50 | CORE_ADDR mach_header; | |
51 | /* Image file path. */ | |
52 | CORE_ADDR file_path; | |
53 | /* st.m_time of image file. */ | |
54 | unsigned long mtime; | |
55 | }; | |
56 | ||
066d7383 TG |
57 | /* Content of inferior dyld_all_image_infos structure. |
58 | See /usr/include/mach-o/dyld_images.h for the documentation. */ | |
cf1061c0 TG |
59 | struct gdb_dyld_all_image_infos |
60 | { | |
61 | /* Version (1). */ | |
62 | unsigned int version; | |
63 | /* Number of images. */ | |
64 | unsigned int count; | |
65 | /* Image description. */ | |
66 | CORE_ADDR info; | |
67 | /* Notifier (function called when a library is added or removed). */ | |
68 | CORE_ADDR notifier; | |
69 | }; | |
70 | ||
71 | /* Current all_image_infos version. */ | |
066d7383 | 72 | #define DYLD_VERSION_MIN 1 |
f00c55f8 | 73 | #define DYLD_VERSION_MAX 12 |
cf1061c0 | 74 | |
ec95993c TG |
75 | /* Per PSPACE specific data. */ |
76 | struct darwin_info | |
77 | { | |
78 | /* Address of structure dyld_all_image_infos in inferior. */ | |
79 | CORE_ADDR all_image_addr; | |
80 | ||
81 | /* Gdb copy of dyld_all_info_infos. */ | |
82 | struct gdb_dyld_all_image_infos all_image; | |
83 | }; | |
84 | ||
85 | /* Per-program-space data key. */ | |
86 | static const struct program_space_data *solib_darwin_pspace_data; | |
87 | ||
88 | static void | |
89 | darwin_pspace_data_cleanup (struct program_space *pspace, void *arg) | |
90 | { | |
91 | struct darwin_info *info; | |
92 | ||
93 | info = program_space_data (pspace, solib_darwin_pspace_data); | |
94 | xfree (info); | |
95 | } | |
cf1061c0 | 96 | |
ec95993c TG |
97 | /* Get the current darwin data. If none is found yet, add it now. This |
98 | function always returns a valid object. */ | |
99 | ||
100 | static struct darwin_info * | |
101 | get_darwin_info (void) | |
102 | { | |
103 | struct darwin_info *info; | |
104 | ||
105 | info = program_space_data (current_program_space, solib_darwin_pspace_data); | |
106 | if (info != NULL) | |
107 | return info; | |
108 | ||
109 | info = XZALLOC (struct darwin_info); | |
110 | set_program_space_data (current_program_space, | |
111 | solib_darwin_pspace_data, info); | |
112 | return info; | |
113 | } | |
cf1061c0 | 114 | |
066d7383 TG |
115 | /* Return non-zero if the version in dyld_all_image is known. */ |
116 | ||
117 | static int | |
ec95993c | 118 | darwin_dyld_version_ok (const struct darwin_info *info) |
066d7383 | 119 | { |
ec95993c TG |
120 | return info->all_image.version >= DYLD_VERSION_MIN |
121 | && info->all_image.version <= DYLD_VERSION_MAX; | |
066d7383 TG |
122 | } |
123 | ||
cf1061c0 | 124 | /* Read dyld_all_image from inferior. */ |
066d7383 | 125 | |
cf1061c0 | 126 | static void |
ec95993c | 127 | darwin_load_image_infos (struct darwin_info *info) |
cf1061c0 TG |
128 | { |
129 | gdb_byte buf[24]; | |
e17a4113 | 130 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); |
cf1061c0 TG |
131 | struct type *ptr_type = builtin_type (target_gdbarch)->builtin_data_ptr; |
132 | int len; | |
133 | ||
134 | /* If the structure address is not known, don't continue. */ | |
ec95993c | 135 | if (info->all_image_addr == 0) |
cf1061c0 TG |
136 | return; |
137 | ||
138 | /* The structure has 4 fields: version (4 bytes), count (4 bytes), | |
139 | info (pointer) and notifier (pointer). */ | |
140 | len = 4 + 4 + 2 * ptr_type->length; | |
141 | gdb_assert (len <= sizeof (buf)); | |
ec95993c | 142 | memset (&info->all_image, 0, sizeof (info->all_image)); |
cf1061c0 TG |
143 | |
144 | /* Read structure raw bytes from target. */ | |
ec95993c | 145 | if (target_read_memory (info->all_image_addr, buf, len)) |
cf1061c0 TG |
146 | return; |
147 | ||
148 | /* Extract the fields. */ | |
ec95993c TG |
149 | info->all_image.version = extract_unsigned_integer (buf, 4, byte_order); |
150 | if (!darwin_dyld_version_ok (info)) | |
cf1061c0 TG |
151 | return; |
152 | ||
ec95993c TG |
153 | info->all_image.count = extract_unsigned_integer (buf + 4, 4, byte_order); |
154 | info->all_image.info = extract_typed_address (buf + 8, ptr_type); | |
155 | info->all_image.notifier = extract_typed_address | |
cf1061c0 TG |
156 | (buf + 8 + ptr_type->length, ptr_type); |
157 | } | |
158 | ||
159 | /* Link map info to include in an allocated so_list entry. */ | |
160 | ||
161 | struct lm_info | |
162 | { | |
163 | /* The target location of lm. */ | |
164 | CORE_ADDR lm_addr; | |
165 | }; | |
166 | ||
167 | struct darwin_so_list | |
168 | { | |
169 | /* Common field. */ | |
170 | struct so_list sl; | |
171 | /* Darwin specific data. */ | |
172 | struct lm_info li; | |
173 | }; | |
174 | ||
175 | /* Lookup the value for a specific symbol. */ | |
066d7383 | 176 | |
cf1061c0 TG |
177 | static CORE_ADDR |
178 | lookup_symbol_from_bfd (bfd *abfd, char *symname) | |
179 | { | |
180 | long storage_needed; | |
181 | asymbol **symbol_table; | |
182 | unsigned int number_of_symbols; | |
183 | unsigned int i; | |
184 | CORE_ADDR symaddr = 0; | |
185 | ||
186 | storage_needed = bfd_get_symtab_upper_bound (abfd); | |
187 | ||
188 | if (storage_needed <= 0) | |
189 | return 0; | |
190 | ||
191 | symbol_table = (asymbol **) xmalloc (storage_needed); | |
192 | number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table); | |
70d4c673 | 193 | |
cf1061c0 TG |
194 | for (i = 0; i < number_of_symbols; i++) |
195 | { | |
196 | asymbol *sym = symbol_table[i]; | |
433759f7 | 197 | |
cf1061c0 TG |
198 | if (strcmp (sym->name, symname) == 0 |
199 | && (sym->section->flags & (SEC_CODE | SEC_DATA)) != 0) | |
200 | { | |
201 | /* BFD symbols are section relative. */ | |
202 | symaddr = sym->value + sym->section->vma; | |
203 | break; | |
204 | } | |
205 | } | |
206 | xfree (symbol_table); | |
207 | ||
208 | return symaddr; | |
209 | } | |
210 | ||
211 | /* Return program interpreter string. */ | |
023e4e81 | 212 | |
cf1061c0 TG |
213 | static gdb_byte * |
214 | find_program_interpreter (void) | |
215 | { | |
216 | gdb_byte *buf = NULL; | |
217 | ||
023e4e81 | 218 | /* If we have an exec_bfd, get the interpreter from the load commands. */ |
cf1061c0 TG |
219 | if (exec_bfd) |
220 | { | |
023e4e81 | 221 | bfd_mach_o_load_command *cmd; |
70d4c673 | 222 | |
023e4e81 TG |
223 | if (bfd_mach_o_lookup_command (exec_bfd, |
224 | BFD_MACH_O_LC_LOAD_DYLINKER, &cmd) == 1) | |
225 | return cmd->command.dylinker.name_str; | |
cf1061c0 TG |
226 | } |
227 | ||
228 | /* If we didn't find it, read from memory. | |
229 | FIXME: todo. */ | |
230 | return buf; | |
231 | } | |
232 | ||
233 | /* Not used. I don't see how the main symbol file can be found: the | |
234 | interpreter name is needed and it is known from the executable file. | |
235 | Note that darwin-nat.c implements pid_to_exec_file. */ | |
066d7383 | 236 | |
cf1061c0 TG |
237 | static int |
238 | open_symbol_file_object (void *from_ttyp) | |
239 | { | |
240 | return 0; | |
241 | } | |
242 | ||
c378eb4e | 243 | /* Build a list of currently loaded shared objects. See solib-svr4.c. */ |
066d7383 | 244 | |
cf1061c0 TG |
245 | static struct so_list * |
246 | darwin_current_sos (void) | |
247 | { | |
248 | struct type *ptr_type = builtin_type (target_gdbarch)->builtin_data_ptr; | |
8544a150 | 249 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); |
cf1061c0 TG |
250 | int ptr_len = TYPE_LENGTH (ptr_type); |
251 | unsigned int image_info_size; | |
cf1061c0 TG |
252 | struct so_list *head = NULL; |
253 | struct so_list *tail = NULL; | |
254 | int i; | |
ec95993c | 255 | struct darwin_info *info = get_darwin_info (); |
cf1061c0 TG |
256 | |
257 | /* Be sure image infos are loaded. */ | |
ec95993c | 258 | darwin_load_image_infos (info); |
cf1061c0 | 259 | |
ec95993c | 260 | if (!darwin_dyld_version_ok (info)) |
cf1061c0 TG |
261 | return NULL; |
262 | ||
263 | image_info_size = ptr_len * 3; | |
264 | ||
265 | /* Read infos for each solib. | |
8544a150 TG |
266 | The first entry was rumored to be the executable itself, but this is not |
267 | true when a large number of shared libraries are used (table expanded ?). | |
268 | We now check all entries, but discard executable images. */ | |
ec95993c | 269 | for (i = 0; i < info->all_image.count; i++) |
cf1061c0 | 270 | { |
ec95993c | 271 | CORE_ADDR iinfo = info->all_image.info + i * image_info_size; |
cf1061c0 TG |
272 | char buf[image_info_size]; |
273 | CORE_ADDR load_addr; | |
274 | CORE_ADDR path_addr; | |
8544a150 TG |
275 | struct mach_o_header_external hdr; |
276 | unsigned long hdr_val; | |
cf1061c0 TG |
277 | char *file_path; |
278 | int errcode; | |
279 | struct darwin_so_list *dnew; | |
280 | struct so_list *new; | |
281 | struct cleanup *old_chain; | |
282 | ||
283 | /* Read image info from inferior. */ | |
ec95993c | 284 | if (target_read_memory (iinfo, buf, image_info_size)) |
cf1061c0 TG |
285 | break; |
286 | ||
287 | load_addr = extract_typed_address (buf, ptr_type); | |
288 | path_addr = extract_typed_address (buf + ptr_len, ptr_type); | |
289 | ||
8544a150 TG |
290 | /* Read Mach-O header from memory. */ |
291 | if (target_read_memory (load_addr, (char *) &hdr, sizeof (hdr) - 4)) | |
292 | break; | |
293 | /* Discard wrong magic numbers. Shouldn't happen. */ | |
294 | hdr_val = extract_unsigned_integer | |
295 | (hdr.magic, sizeof (hdr.magic), byte_order); | |
296 | if (hdr_val != BFD_MACH_O_MH_MAGIC && hdr_val != BFD_MACH_O_MH_MAGIC_64) | |
297 | continue; | |
298 | /* Discard executable. Should happen only once. */ | |
299 | hdr_val = extract_unsigned_integer | |
300 | (hdr.filetype, sizeof (hdr.filetype), byte_order); | |
301 | if (hdr_val == BFD_MACH_O_MH_EXECUTE) | |
302 | continue; | |
303 | ||
cf1061c0 TG |
304 | target_read_string (path_addr, &file_path, |
305 | SO_NAME_MAX_PATH_SIZE - 1, &errcode); | |
306 | if (errcode) | |
307 | break; | |
308 | ||
309 | /* Create and fill the new so_list element. */ | |
310 | dnew = XZALLOC (struct darwin_so_list); | |
311 | new = &dnew->sl; | |
312 | old_chain = make_cleanup (xfree, dnew); | |
313 | ||
314 | new->lm_info = &dnew->li; | |
315 | ||
316 | strncpy (new->so_name, file_path, SO_NAME_MAX_PATH_SIZE - 1); | |
317 | new->so_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0'; | |
318 | strcpy (new->so_original_name, new->so_name); | |
319 | xfree (file_path); | |
320 | new->lm_info->lm_addr = load_addr; | |
321 | ||
322 | if (head == NULL) | |
323 | head = new; | |
324 | else | |
325 | tail->next = new; | |
326 | tail = new; | |
327 | ||
328 | discard_cleanups (old_chain); | |
329 | } | |
330 | ||
331 | return head; | |
332 | } | |
333 | ||
334 | /* Return 1 if PC lies in the dynamic symbol resolution code of the | |
335 | run time loader. */ | |
066d7383 | 336 | |
693be288 | 337 | static int |
cf1061c0 TG |
338 | darwin_in_dynsym_resolve_code (CORE_ADDR pc) |
339 | { | |
340 | return 0; | |
341 | } | |
342 | ||
343 | ||
344 | /* No special symbol handling. */ | |
066d7383 | 345 | |
cf1061c0 TG |
346 | static void |
347 | darwin_special_symbol_handling (void) | |
348 | { | |
349 | } | |
350 | ||
f00c55f8 TG |
351 | /* Extract dyld_all_image_addr when the process was just created, assuming the |
352 | current PC is at the entry of the dynamic linker. */ | |
066d7383 | 353 | |
cf1061c0 | 354 | static void |
ec95993c | 355 | darwin_solib_get_all_image_info_addr_at_init (struct darwin_info *info) |
cf1061c0 | 356 | { |
cf1061c0 | 357 | gdb_byte *interp_name; |
cf1061c0 | 358 | CORE_ADDR load_addr = 0; |
cf1061c0 | 359 | bfd *dyld_bfd = NULL; |
d6ad71ba | 360 | struct cleanup *cleanup; |
f00c55f8 TG |
361 | |
362 | /* This method doesn't work with an attached process. */ | |
363 | if (current_inferior ()->attach_flag) | |
364 | return; | |
cf1061c0 | 365 | |
cf1061c0 TG |
366 | /* Find the program interpreter. */ |
367 | interp_name = find_program_interpreter (); | |
368 | if (!interp_name) | |
369 | return; | |
370 | ||
d6ad71ba TT |
371 | cleanup = make_cleanup (null_cleanup, NULL); |
372 | ||
cf1061c0 | 373 | /* Create a bfd for the interpreter. */ |
1c00ec6b | 374 | dyld_bfd = gdb_bfd_open (interp_name, gnutarget, -1); |
cf1061c0 TG |
375 | if (dyld_bfd) |
376 | { | |
377 | bfd *sub; | |
433759f7 | 378 | |
f9a062ff | 379 | make_cleanup_bfd_unref (dyld_bfd); |
cf1061c0 | 380 | sub = bfd_mach_o_fat_extract (dyld_bfd, bfd_object, |
a97b0ac8 | 381 | gdbarch_bfd_arch_info (target_gdbarch)); |
cf1061c0 | 382 | if (sub) |
cf1061c0 | 383 | { |
520b0001 TT |
384 | dyld_bfd = sub; |
385 | gdb_bfd_ref (sub); | |
f9a062ff | 386 | make_cleanup_bfd_unref (sub); |
cf1061c0 | 387 | } |
d6ad71ba TT |
388 | else |
389 | dyld_bfd = NULL; | |
cf1061c0 TG |
390 | } |
391 | if (!dyld_bfd) | |
d6ad71ba TT |
392 | { |
393 | do_cleanups (cleanup); | |
394 | return; | |
395 | } | |
70d4c673 | 396 | |
f00c55f8 TG |
397 | /* We find the dynamic linker's base address by examining |
398 | the current pc (which should point at the entry point for the | |
399 | dynamic linker) and subtracting the offset of the entry point. */ | |
400 | load_addr = (regcache_read_pc (get_current_regcache ()) | |
401 | - bfd_get_start_address (dyld_bfd)); | |
cf1061c0 TG |
402 | |
403 | /* Now try to set a breakpoint in the dynamic linker. */ | |
ec95993c | 404 | info->all_image_addr = |
cf1061c0 | 405 | lookup_symbol_from_bfd (dyld_bfd, "_dyld_all_image_infos"); |
70d4c673 | 406 | |
d6ad71ba | 407 | do_cleanups (cleanup); |
cf1061c0 | 408 | |
ec95993c | 409 | if (info->all_image_addr == 0) |
cf1061c0 TG |
410 | return; |
411 | ||
ec95993c | 412 | info->all_image_addr += load_addr; |
f00c55f8 TG |
413 | } |
414 | ||
415 | /* Extract dyld_all_image_addr reading it from | |
416 | TARGET_OBJECT_DARWIN_DYLD_INFO. */ | |
417 | ||
418 | static void | |
ec95993c | 419 | darwin_solib_read_all_image_info_addr (struct darwin_info *info) |
f00c55f8 TG |
420 | { |
421 | gdb_byte buf[8 + 8 + 4]; | |
422 | LONGEST len; | |
423 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); | |
424 | ||
425 | len = target_read (¤t_target, TARGET_OBJECT_DARWIN_DYLD_INFO, NULL, | |
426 | buf, 0, sizeof (buf)); | |
427 | if (len != sizeof (buf)) | |
428 | return; | |
429 | ||
ec95993c | 430 | info->all_image_addr = extract_unsigned_integer (buf, 8, byte_order); |
f00c55f8 TG |
431 | } |
432 | ||
433 | /* Shared library startup support. See documentation in solib-svr4.c. */ | |
434 | ||
435 | static void | |
436 | darwin_solib_create_inferior_hook (int from_tty) | |
437 | { | |
ec95993c TG |
438 | struct darwin_info *info = get_darwin_info (); |
439 | ||
440 | info->all_image_addr = 0; | |
f00c55f8 | 441 | |
ec95993c | 442 | darwin_solib_read_all_image_info_addr (info); |
f00c55f8 | 443 | |
ec95993c TG |
444 | if (info->all_image_addr == 0) |
445 | darwin_solib_get_all_image_info_addr_at_init (info); | |
f00c55f8 | 446 | |
ec95993c | 447 | if (info->all_image_addr == 0) |
f00c55f8 | 448 | return; |
cf1061c0 | 449 | |
ec95993c | 450 | darwin_load_image_infos (info); |
cf1061c0 | 451 | |
ec95993c TG |
452 | if (darwin_dyld_version_ok (info)) |
453 | create_solib_event_breakpoint (target_gdbarch, info->all_image.notifier); | |
cf1061c0 TG |
454 | } |
455 | ||
456 | static void | |
457 | darwin_clear_solib (void) | |
458 | { | |
ec95993c TG |
459 | struct darwin_info *info = get_darwin_info (); |
460 | ||
461 | info->all_image_addr = 0; | |
462 | info->all_image.version = 0; | |
cf1061c0 TG |
463 | } |
464 | ||
465 | static void | |
466 | darwin_free_so (struct so_list *so) | |
467 | { | |
468 | } | |
469 | ||
470 | /* The section table is built from bfd sections using bfd VMAs. | |
471 | Relocate these VMAs according to solib info. */ | |
066d7383 | 472 | |
cf1061c0 TG |
473 | static void |
474 | darwin_relocate_section_addresses (struct so_list *so, | |
0542c86d | 475 | struct target_section *sec) |
cf1061c0 TG |
476 | { |
477 | sec->addr += so->lm_info->lm_addr; | |
478 | sec->endaddr += so->lm_info->lm_addr; | |
479 | ||
480 | /* Best effort to set addr_high/addr_low. This is used only by | |
481 | 'info sharedlibary'. */ | |
482 | if (so->addr_high == 0) | |
483 | { | |
484 | so->addr_low = sec->addr; | |
485 | so->addr_high = sec->endaddr; | |
486 | } | |
487 | if (sec->endaddr > so->addr_high) | |
488 | so->addr_high = sec->endaddr; | |
489 | if (sec->addr < so->addr_low) | |
490 | so->addr_low = sec->addr; | |
491 | } | |
492 | \f | |
493 | static struct symbol * | |
494 | darwin_lookup_lib_symbol (const struct objfile *objfile, | |
495 | const char *name, | |
cf1061c0 TG |
496 | const domain_enum domain) |
497 | { | |
498 | return NULL; | |
499 | } | |
500 | ||
501 | static bfd * | |
502 | darwin_bfd_open (char *pathname) | |
503 | { | |
504 | char *found_pathname; | |
505 | int found_file; | |
506 | bfd *abfd; | |
507 | bfd *res; | |
508 | ||
509 | /* Search for shared library file. */ | |
510 | found_pathname = solib_find (pathname, &found_file); | |
511 | if (found_pathname == NULL) | |
512 | perror_with_name (pathname); | |
513 | ||
514 | /* Open bfd for shared library. */ | |
515 | abfd = solib_bfd_fopen (found_pathname, found_file); | |
516 | ||
517 | res = bfd_mach_o_fat_extract (abfd, bfd_object, | |
a97b0ac8 | 518 | gdbarch_bfd_arch_info (target_gdbarch)); |
cf1061c0 TG |
519 | if (!res) |
520 | { | |
f9a062ff | 521 | make_cleanup_bfd_unref (abfd); |
cf1061c0 | 522 | error (_("`%s': not a shared-library: %s"), |
a4453b7e | 523 | bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); |
cf1061c0 TG |
524 | } |
525 | return res; | |
526 | } | |
527 | ||
528 | struct target_so_ops darwin_so_ops; | |
529 | ||
693be288 JK |
530 | /* -Wmissing-prototypes */ |
531 | extern initialize_file_ftype _initialize_darwin_solib; | |
532 | ||
cf1061c0 TG |
533 | void |
534 | _initialize_darwin_solib (void) | |
535 | { | |
ec95993c | 536 | solib_darwin_pspace_data |
8e260fc0 TT |
537 | = register_program_space_data_with_cleanup (NULL, |
538 | darwin_pspace_data_cleanup); | |
ec95993c | 539 | |
cf1061c0 TG |
540 | darwin_so_ops.relocate_section_addresses = darwin_relocate_section_addresses; |
541 | darwin_so_ops.free_so = darwin_free_so; | |
542 | darwin_so_ops.clear_solib = darwin_clear_solib; | |
543 | darwin_so_ops.solib_create_inferior_hook = darwin_solib_create_inferior_hook; | |
544 | darwin_so_ops.special_symbol_handling = darwin_special_symbol_handling; | |
545 | darwin_so_ops.current_sos = darwin_current_sos; | |
546 | darwin_so_ops.open_symbol_file_object = open_symbol_file_object; | |
547 | darwin_so_ops.in_dynsym_resolve_code = darwin_in_dynsym_resolve_code; | |
548 | darwin_so_ops.lookup_lib_global_symbol = darwin_lookup_lib_symbol; | |
549 | darwin_so_ops.bfd_open = darwin_bfd_open; | |
550 | } |