Commit | Line | Data |
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13437d4b | 1 | /* Handle shared libraries for GDB, the GNU Debugger. |
14a5e767 | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
4 | 2000, 2001, 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc. | |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
c906108c | 22 | |
c906108c SS |
23 | #include "defs.h" |
24 | ||
c906108c | 25 | #include <sys/types.h> |
c906108c | 26 | #include <fcntl.h> |
13437d4b | 27 | #include "gdb_string.h" |
c906108c SS |
28 | #include "symtab.h" |
29 | #include "bfd.h" | |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
60250e8b | 32 | #include "exceptions.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "command.h" | |
35 | #include "target.h" | |
36 | #include "frame.h" | |
88987551 | 37 | #include "gdb_regex.h" |
c906108c SS |
38 | #include "inferior.h" |
39 | #include "environ.h" | |
40 | #include "language.h" | |
41 | #include "gdbcmd.h" | |
fa58ee11 | 42 | #include "completer.h" |
fe4e3eb8 | 43 | #include "filenames.h" /* for DOSish file names */ |
4646aa9d | 44 | #include "exec.h" |
13437d4b | 45 | #include "solist.h" |
84acb35a | 46 | #include "observer.h" |
dbda9972 | 47 | #include "readline/readline.h" |
c906108c | 48 | |
66aba65d MK |
49 | /* Architecture-specific operations. */ |
50 | ||
51 | /* Per-architecture data key. */ | |
52 | static struct gdbarch_data *solib_data; | |
53 | ||
54 | static void * | |
55 | solib_init (struct obstack *obstack) | |
56 | { | |
57 | struct target_so_ops **ops; | |
58 | ||
59 | ops = OBSTACK_ZALLOC (obstack, struct target_so_ops *); | |
60 | *ops = current_target_so_ops; | |
61 | return ops; | |
62 | } | |
63 | ||
64 | static struct target_so_ops * | |
65 | solib_ops (struct gdbarch *gdbarch) | |
66 | { | |
67 | struct target_so_ops **ops = gdbarch_data (gdbarch, solib_data); | |
68 | return *ops; | |
69 | } | |
7d522c90 DJ |
70 | |
71 | /* Set the solib operations for GDBARCH to NEW_OPS. */ | |
72 | ||
73 | void | |
74 | set_solib_ops (struct gdbarch *gdbarch, struct target_so_ops *new_ops) | |
75 | { | |
76 | struct target_so_ops **ops = gdbarch_data (gdbarch, solib_data); | |
77 | *ops = new_ops; | |
78 | } | |
66aba65d MK |
79 | \f |
80 | ||
13437d4b | 81 | /* external data declarations */ |
c906108c | 82 | |
7d522c90 DJ |
83 | /* FIXME: gdbarch needs to control this variable, or else every |
84 | configuration needs to call set_solib_ops. */ | |
13437d4b | 85 | struct target_so_ops *current_target_so_ops; |
23e04971 MS |
86 | |
87 | /* local data declarations */ | |
07cd4b97 | 88 | |
c906108c | 89 | static struct so_list *so_list_head; /* List of known shared objects */ |
23e04971 | 90 | |
c5aa993b | 91 | static int solib_cleanup_queued = 0; /* make_run_cleanup called */ |
c906108c | 92 | |
c906108c SS |
93 | /* Local function prototypes */ |
94 | ||
4efb68b1 | 95 | static void do_clear_solib (void *); |
c906108c | 96 | |
c906108c SS |
97 | /* If non-empty, this is a search path for loading non-absolute shared library |
98 | symbol files. This takes precedence over the environment variables PATH | |
99 | and LD_LIBRARY_PATH. */ | |
100 | static char *solib_search_path = NULL; | |
920d2a44 AC |
101 | static void |
102 | show_solib_search_path (struct ui_file *file, int from_tty, | |
103 | struct cmd_list_element *c, const char *value) | |
104 | { | |
105 | fprintf_filtered (file, _("\ | |
106 | The search path for loading non-absolute shared library symbol files is %s.\n"), | |
107 | value); | |
108 | } | |
c906108c | 109 | |
e4f7b8c8 MS |
110 | /* |
111 | ||
112 | GLOBAL FUNCTION | |
113 | ||
114 | solib_open -- Find a shared library file and open it. | |
115 | ||
116 | SYNOPSIS | |
117 | ||
118 | int solib_open (char *in_patname, char **found_pathname); | |
119 | ||
120 | DESCRIPTION | |
121 | ||
f822c95b | 122 | Global variable GDB_SYSROOT is used as a prefix directory |
e4f7b8c8 MS |
123 | to search for shared libraries if they have an absolute path. |
124 | ||
125 | Global variable SOLIB_SEARCH_PATH is used as a prefix directory | |
126 | (or set of directories, as in LD_LIBRARY_PATH) to search for all | |
f822c95b | 127 | shared libraries if not found in GDB_SYSROOT. |
e4f7b8c8 | 128 | |
c8c18e65 | 129 | Search algorithm: |
f822c95b DJ |
130 | * If there is a gdb_sysroot and path is absolute: |
131 | * Search for gdb_sysroot/path. | |
c8c18e65 KW |
132 | * else |
133 | * Look for it literally (unmodified). | |
e4f7b8c8 | 134 | * Look in SOLIB_SEARCH_PATH. |
f43caff8 | 135 | * If available, use target defined search function. |
f822c95b | 136 | * If gdb_sysroot is NOT set, perform the following two searches: |
c8c18e65 KW |
137 | * Look in inferior's $PATH. |
138 | * Look in inferior's $LD_LIBRARY_PATH. | |
139 | * | |
140 | * The last check avoids doing this search when targetting remote | |
f822c95b | 141 | * machines since gdb_sysroot will almost always be set. |
e4f7b8c8 MS |
142 | |
143 | RETURNS | |
b21f0843 | 144 | |
e4f7b8c8 MS |
145 | file handle for opened solib, or -1 for failure. */ |
146 | ||
147 | int | |
148 | solib_open (char *in_pathname, char **found_pathname) | |
149 | { | |
66aba65d | 150 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
e4f7b8c8 MS |
151 | int found_file = -1; |
152 | char *temp_pathname = NULL; | |
fe4e3eb8 | 153 | char *p = in_pathname; |
f822c95b | 154 | int gdb_sysroot_is_empty; |
58dc52c3 | 155 | |
f822c95b | 156 | gdb_sysroot_is_empty = (gdb_sysroot == NULL || *gdb_sysroot == 0); |
e4f7b8c8 | 157 | |
f822c95b | 158 | if (! IS_ABSOLUTE_PATH (in_pathname) || gdb_sysroot_is_empty) |
f1d10cfb AS |
159 | temp_pathname = in_pathname; |
160 | else | |
e4f7b8c8 | 161 | { |
f822c95b | 162 | int prefix_len = strlen (gdb_sysroot); |
f1d10cfb AS |
163 | |
164 | /* Remove trailing slashes from absolute prefix. */ | |
165 | while (prefix_len > 0 | |
f822c95b | 166 | && IS_DIR_SEPARATOR (gdb_sysroot[prefix_len - 1])) |
f1d10cfb AS |
167 | prefix_len--; |
168 | ||
169 | /* Cat the prefixed pathname together. */ | |
170 | temp_pathname = alloca (prefix_len + strlen (in_pathname) + 1); | |
f822c95b | 171 | strncpy (temp_pathname, gdb_sysroot, prefix_len); |
f1d10cfb AS |
172 | temp_pathname[prefix_len] = '\0'; |
173 | strcat (temp_pathname, in_pathname); | |
e4f7b8c8 MS |
174 | } |
175 | ||
f1d10cfb AS |
176 | /* Now see if we can open it. */ |
177 | found_file = open (temp_pathname, O_RDONLY | O_BINARY, 0); | |
178 | ||
f822c95b | 179 | /* If the search in gdb_sysroot failed, and the path name is |
ba5f0d88 OF |
180 | absolute at this point, make it relative. (openp will try and open the |
181 | file according to its absolute path otherwise, which is not what we want.) | |
182 | Affects subsequent searches for this solib. */ | |
183 | if (found_file < 0 && IS_ABSOLUTE_PATH (in_pathname)) | |
184 | { | |
185 | /* First, get rid of any drive letters etc. */ | |
186 | while (!IS_DIR_SEPARATOR (*in_pathname)) | |
187 | in_pathname++; | |
188 | ||
189 | /* Next, get rid of all leading dir separators. */ | |
190 | while (IS_DIR_SEPARATOR (*in_pathname)) | |
191 | in_pathname++; | |
192 | } | |
193 | ||
c8c18e65 | 194 | /* If not found, search the solib_search_path (if any). */ |
e4f7b8c8 | 195 | if (found_file < 0 && solib_search_path != NULL) |
014d698b | 196 | found_file = openp (solib_search_path, OPF_TRY_CWD_FIRST, |
637d6690 | 197 | in_pathname, O_RDONLY | O_BINARY, 0, &temp_pathname); |
ba5f0d88 OF |
198 | |
199 | /* If not found, next search the solib_search_path (if any) for the basename | |
200 | only (ignoring the path). This is to allow reading solibs from a path | |
201 | that differs from the opened path. */ | |
202 | if (found_file < 0 && solib_search_path != NULL) | |
014d698b | 203 | found_file = openp (solib_search_path, OPF_TRY_CWD_FIRST, |
637d6690 | 204 | lbasename (in_pathname), O_RDONLY | O_BINARY, 0, |
ba5f0d88 | 205 | &temp_pathname); |
e4f7b8c8 | 206 | |
2610b0bf | 207 | /* If not found, try to use target supplied solib search method */ |
66aba65d | 208 | if (found_file < 0 && ops->find_and_open_solib) |
637d6690 | 209 | found_file = ops->find_and_open_solib (in_pathname, O_RDONLY | O_BINARY, |
66aba65d | 210 | &temp_pathname); |
2610b0bf | 211 | |
e4f7b8c8 | 212 | /* If not found, next search the inferior's $PATH environment variable. */ |
f822c95b | 213 | if (found_file < 0 && gdb_sysroot_is_empty) |
e4f7b8c8 | 214 | found_file = openp (get_in_environ (inferior_environ, "PATH"), |
637d6690 | 215 | OPF_TRY_CWD_FIRST, in_pathname, O_RDONLY | O_BINARY, 0, |
014d698b | 216 | &temp_pathname); |
e4f7b8c8 MS |
217 | |
218 | /* If not found, next search the inferior's $LD_LIBRARY_PATH | |
219 | environment variable. */ | |
f822c95b | 220 | if (found_file < 0 && gdb_sysroot_is_empty) |
e4f7b8c8 | 221 | found_file = openp (get_in_environ (inferior_environ, "LD_LIBRARY_PATH"), |
637d6690 | 222 | OPF_TRY_CWD_FIRST, in_pathname, O_RDONLY | O_BINARY, 0, |
014d698b | 223 | &temp_pathname); |
e4f7b8c8 MS |
224 | |
225 | /* Done. If not found, tough luck. Return found_file and | |
226 | (optionally) found_pathname. */ | |
a7ec76fe | 227 | if (found_pathname != NULL && temp_pathname != NULL) |
4fcf66da | 228 | *found_pathname = xstrdup (temp_pathname); |
e4f7b8c8 MS |
229 | return found_file; |
230 | } | |
231 | ||
232 | ||
c906108c SS |
233 | /* |
234 | ||
c5aa993b | 235 | LOCAL FUNCTION |
c906108c | 236 | |
c5aa993b | 237 | solib_map_sections -- open bfd and build sections for shared lib |
c906108c | 238 | |
c5aa993b | 239 | SYNOPSIS |
c906108c | 240 | |
c5aa993b | 241 | static int solib_map_sections (struct so_list *so) |
c906108c | 242 | |
c5aa993b | 243 | DESCRIPTION |
c906108c | 244 | |
c5aa993b JM |
245 | Given a pointer to one of the shared objects in our list |
246 | of mapped objects, use the recorded name to open a bfd | |
247 | descriptor for the object, build a section table, and then | |
248 | relocate all the section addresses by the base address at | |
249 | which the shared object was mapped. | |
c906108c | 250 | |
c5aa993b | 251 | FIXMES |
c906108c | 252 | |
c5aa993b JM |
253 | In most (all?) cases the shared object file name recorded in the |
254 | dynamic linkage tables will be a fully qualified pathname. For | |
255 | cases where it isn't, do we really mimic the systems search | |
256 | mechanism correctly in the below code (particularly the tilde | |
257 | expansion stuff?). | |
c906108c SS |
258 | */ |
259 | ||
260 | static int | |
4efb68b1 | 261 | solib_map_sections (void *arg) |
c906108c SS |
262 | { |
263 | struct so_list *so = (struct so_list *) arg; /* catch_errors bogon */ | |
264 | char *filename; | |
265 | char *scratch_pathname; | |
266 | int scratch_chan; | |
267 | struct section_table *p; | |
268 | struct cleanup *old_chain; | |
269 | bfd *abfd; | |
c5aa993b JM |
270 | |
271 | filename = tilde_expand (so->so_name); | |
272 | ||
b8c9b27d | 273 | old_chain = make_cleanup (xfree, filename); |
e4f7b8c8 | 274 | scratch_chan = solib_open (filename, &scratch_pathname); |
c906108c | 275 | |
c906108c SS |
276 | if (scratch_chan < 0) |
277 | { | |
13437d4b KB |
278 | perror_with_name (filename); |
279 | } | |
104c1213 | 280 | |
e4f7b8c8 | 281 | /* Leave scratch_pathname allocated. abfd->name will point to it. */ |
9f76c2cd | 282 | abfd = bfd_fopen (scratch_pathname, gnutarget, FOPEN_RB, scratch_chan); |
13437d4b | 283 | if (!abfd) |
23e04971 | 284 | { |
13437d4b | 285 | close (scratch_chan); |
8a3fe4f8 | 286 | error (_("Could not open `%s' as an executable file: %s"), |
13437d4b KB |
287 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
288 | } | |
e4f7b8c8 | 289 | |
13437d4b KB |
290 | /* Leave bfd open, core_xfer_memory and "info files" need it. */ |
291 | so->abfd = abfd; | |
549c1eea | 292 | bfd_set_cacheable (abfd, 1); |
23e04971 | 293 | |
e4f7b8c8 MS |
294 | /* copy full path name into so_name, so that later symbol_file_add |
295 | can find it */ | |
13437d4b | 296 | if (strlen (scratch_pathname) >= SO_NAME_MAX_PATH_SIZE) |
8a3fe4f8 | 297 | error (_("Full path name length of shared library exceeds SO_NAME_MAX_PATH_SIZE in so_list structure.")); |
13437d4b | 298 | strcpy (so->so_name, scratch_pathname); |
23e04971 | 299 | |
13437d4b KB |
300 | if (!bfd_check_format (abfd, bfd_object)) |
301 | { | |
8a3fe4f8 | 302 | error (_("\"%s\": not in executable format: %s."), |
13437d4b | 303 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
23e04971 | 304 | } |
13437d4b | 305 | if (build_section_table (abfd, &so->sections, &so->sections_end)) |
23e04971 | 306 | { |
8a3fe4f8 | 307 | error (_("Can't find the file sections in `%s': %s"), |
13437d4b | 308 | bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); |
23e04971 | 309 | } |
104c1213 | 310 | |
13437d4b | 311 | for (p = so->sections; p < so->sections_end; p++) |
104c1213 | 312 | { |
66aba65d MK |
313 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
314 | ||
13437d4b KB |
315 | /* Relocate the section binding addresses as recorded in the shared |
316 | object's file by the base address to which the object was actually | |
317 | mapped. */ | |
66aba65d | 318 | ops->relocate_section_addresses (so, p); |
cfa9d6d9 DJ |
319 | |
320 | /* If the target didn't provide information about the address | |
321 | range of the shared object, assume we want the location of | |
322 | the .text section. */ | |
323 | if (so->addr_low == 0 && so->addr_high == 0 | |
324 | && strcmp (p->the_bfd_section->name, ".text") == 0) | |
13437d4b | 325 | { |
cfa9d6d9 DJ |
326 | so->addr_low = p->addr; |
327 | so->addr_high = p->endaddr; | |
13437d4b | 328 | } |
104c1213 JM |
329 | } |
330 | ||
13437d4b KB |
331 | /* Free the file names, close the file now. */ |
332 | do_cleanups (old_chain); | |
104c1213 | 333 | |
13437d4b | 334 | return (1); |
104c1213 | 335 | } |
c906108c | 336 | |
07cd4b97 | 337 | /* LOCAL FUNCTION |
c906108c | 338 | |
07cd4b97 | 339 | free_so --- free a `struct so_list' object |
c906108c | 340 | |
c5aa993b | 341 | SYNOPSIS |
c906108c | 342 | |
07cd4b97 | 343 | void free_so (struct so_list *so) |
c906108c | 344 | |
c5aa993b | 345 | DESCRIPTION |
c906108c | 346 | |
07cd4b97 JB |
347 | Free the storage associated with the `struct so_list' object SO. |
348 | If we have opened a BFD for SO, close it. | |
c906108c | 349 | |
07cd4b97 JB |
350 | The caller is responsible for removing SO from whatever list it is |
351 | a member of. If we have placed SO's sections in some target's | |
352 | section table, the caller is responsible for removing them. | |
c906108c | 353 | |
07cd4b97 JB |
354 | This function doesn't mess with objfiles at all. If there is an |
355 | objfile associated with SO that needs to be removed, the caller is | |
356 | responsible for taking care of that. */ | |
357 | ||
13437d4b | 358 | void |
07cd4b97 | 359 | free_so (struct so_list *so) |
c906108c | 360 | { |
66aba65d | 361 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
07cd4b97 | 362 | char *bfd_filename = 0; |
c5aa993b | 363 | |
07cd4b97 | 364 | if (so->sections) |
b8c9b27d | 365 | xfree (so->sections); |
07cd4b97 JB |
366 | |
367 | if (so->abfd) | |
c906108c | 368 | { |
07cd4b97 JB |
369 | bfd_filename = bfd_get_filename (so->abfd); |
370 | if (! bfd_close (so->abfd)) | |
8a3fe4f8 | 371 | warning (_("cannot close \"%s\": %s"), |
07cd4b97 | 372 | bfd_filename, bfd_errmsg (bfd_get_error ())); |
c906108c | 373 | } |
07cd4b97 JB |
374 | |
375 | if (bfd_filename) | |
b8c9b27d | 376 | xfree (bfd_filename); |
07cd4b97 | 377 | |
66aba65d | 378 | ops->free_so (so); |
07cd4b97 | 379 | |
b8c9b27d | 380 | xfree (so); |
c906108c SS |
381 | } |
382 | ||
07cd4b97 | 383 | |
f8766ec1 KB |
384 | /* Return address of first so_list entry in master shared object list. */ |
385 | struct so_list * | |
386 | master_so_list (void) | |
387 | { | |
388 | return so_list_head; | |
389 | } | |
390 | ||
391 | ||
c906108c SS |
392 | /* A small stub to get us past the arg-passing pinhole of catch_errors. */ |
393 | ||
394 | static int | |
4efb68b1 | 395 | symbol_add_stub (void *arg) |
c906108c | 396 | { |
52f0bd74 | 397 | struct so_list *so = (struct so_list *) arg; /* catch_errs bogon */ |
62557bbc | 398 | struct section_addr_info *sap; |
c906108c | 399 | |
07cd4b97 JB |
400 | /* Have we already loaded this shared object? */ |
401 | ALL_OBJFILES (so->objfile) | |
402 | { | |
403 | if (strcmp (so->objfile->name, so->so_name) == 0) | |
404 | return 1; | |
405 | } | |
406 | ||
62557bbc KB |
407 | sap = build_section_addr_info_from_section_table (so->sections, |
408 | so->sections_end); | |
e7cf9df1 | 409 | |
62557bbc KB |
410 | so->objfile = symbol_file_add (so->so_name, so->from_tty, |
411 | sap, 0, OBJF_SHARED); | |
412 | free_section_addr_info (sap); | |
c906108c | 413 | |
07cd4b97 | 414 | return (1); |
c906108c SS |
415 | } |
416 | ||
42a6e6a0 MK |
417 | /* Read in symbols for shared object SO. If FROM_TTY is non-zero, be |
418 | chatty about it. Return non-zero if any symbols were actually | |
419 | loaded. */ | |
420 | ||
421 | int | |
422 | solib_read_symbols (struct so_list *so, int from_tty) | |
423 | { | |
424 | if (so->symbols_loaded) | |
425 | { | |
426 | if (from_tty) | |
a3f17187 | 427 | printf_unfiltered (_("Symbols already loaded for %s\n"), so->so_name); |
42a6e6a0 | 428 | } |
8bb75286 DJ |
429 | else if (so->abfd == NULL) |
430 | { | |
431 | if (from_tty) | |
432 | printf_unfiltered (_("Symbol file not found for %s\n"), so->so_name); | |
433 | } | |
42a6e6a0 MK |
434 | else |
435 | { | |
436 | if (catch_errors (symbol_add_stub, so, | |
437 | "Error while reading shared library symbols:\n", | |
438 | RETURN_MASK_ALL)) | |
439 | { | |
440 | if (from_tty) | |
a3f17187 | 441 | printf_unfiltered (_("Loaded symbols for %s\n"), so->so_name); |
42a6e6a0 MK |
442 | so->symbols_loaded = 1; |
443 | return 1; | |
444 | } | |
445 | } | |
446 | ||
447 | return 0; | |
448 | } | |
c906108c | 449 | |
07cd4b97 | 450 | /* LOCAL FUNCTION |
c906108c | 451 | |
105b175f | 452 | update_solib_list --- synchronize GDB's shared object list with inferior's |
c906108c | 453 | |
c5aa993b | 454 | SYNOPSIS |
c906108c | 455 | |
105b175f | 456 | void update_solib_list (int from_tty, struct target_ops *TARGET) |
c906108c | 457 | |
07cd4b97 | 458 | Extract the list of currently loaded shared objects from the |
105b175f JB |
459 | inferior, and compare it with the list of shared objects currently |
460 | in GDB's so_list_head list. Edit so_list_head to bring it in sync | |
461 | with the inferior's new list. | |
c906108c | 462 | |
105b175f JB |
463 | If we notice that the inferior has unloaded some shared objects, |
464 | free any symbolic info GDB had read about those shared objects. | |
465 | ||
466 | Don't load symbolic info for any new shared objects; just add them | |
467 | to the list, and leave their symbols_loaded flag clear. | |
07cd4b97 JB |
468 | |
469 | If FROM_TTY is non-null, feel free to print messages about what | |
470 | we're doing. | |
c906108c | 471 | |
07cd4b97 JB |
472 | If TARGET is non-null, add the sections of all new shared objects |
473 | to TARGET's section table. Note that this doesn't remove any | |
474 | sections for shared objects that have been unloaded, and it | |
475 | doesn't check to see if the new shared objects are already present in | |
476 | the section table. But we only use this for core files and | |
477 | processes we've just attached to, so that's okay. */ | |
c906108c | 478 | |
a78f21af | 479 | static void |
105b175f | 480 | update_solib_list (int from_tty, struct target_ops *target) |
07cd4b97 | 481 | { |
66aba65d MK |
482 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
483 | struct so_list *inferior = ops->current_sos(); | |
07cd4b97 JB |
484 | struct so_list *gdb, **gdb_link; |
485 | ||
104c1213 JM |
486 | /* If we are attaching to a running process for which we |
487 | have not opened a symbol file, we may be able to get its | |
488 | symbols now! */ | |
489 | if (attach_flag && | |
490 | symfile_objfile == NULL) | |
66aba65d | 491 | catch_errors (ops->open_symbol_file_object, &from_tty, |
104c1213 JM |
492 | "Error reading attached process's symbol file.\n", |
493 | RETURN_MASK_ALL); | |
494 | ||
07cd4b97 JB |
495 | /* Since this function might actually add some elements to the |
496 | so_list_head list, arrange for it to be cleaned up when | |
497 | appropriate. */ | |
498 | if (!solib_cleanup_queued) | |
499 | { | |
500 | make_run_cleanup (do_clear_solib, NULL); | |
501 | solib_cleanup_queued = 1; | |
c906108c | 502 | } |
c5aa993b | 503 | |
07cd4b97 JB |
504 | /* GDB and the inferior's dynamic linker each maintain their own |
505 | list of currently loaded shared objects; we want to bring the | |
506 | former in sync with the latter. Scan both lists, seeing which | |
507 | shared objects appear where. There are three cases: | |
508 | ||
509 | - A shared object appears on both lists. This means that GDB | |
105b175f JB |
510 | knows about it already, and it's still loaded in the inferior. |
511 | Nothing needs to happen. | |
07cd4b97 JB |
512 | |
513 | - A shared object appears only on GDB's list. This means that | |
105b175f JB |
514 | the inferior has unloaded it. We should remove the shared |
515 | object from GDB's tables. | |
07cd4b97 JB |
516 | |
517 | - A shared object appears only on the inferior's list. This | |
105b175f JB |
518 | means that it's just been loaded. We should add it to GDB's |
519 | tables. | |
07cd4b97 JB |
520 | |
521 | So we walk GDB's list, checking each entry to see if it appears | |
522 | in the inferior's list too. If it does, no action is needed, and | |
523 | we remove it from the inferior's list. If it doesn't, the | |
524 | inferior has unloaded it, and we remove it from GDB's list. By | |
525 | the time we're done walking GDB's list, the inferior's list | |
526 | contains only the new shared objects, which we then add. */ | |
527 | ||
528 | gdb = so_list_head; | |
529 | gdb_link = &so_list_head; | |
530 | while (gdb) | |
c906108c | 531 | { |
07cd4b97 JB |
532 | struct so_list *i = inferior; |
533 | struct so_list **i_link = &inferior; | |
534 | ||
535 | /* Check to see whether the shared object *gdb also appears in | |
536 | the inferior's current list. */ | |
537 | while (i) | |
c906108c | 538 | { |
07cd4b97 JB |
539 | if (! strcmp (gdb->so_original_name, i->so_original_name)) |
540 | break; | |
541 | ||
542 | i_link = &i->next; | |
543 | i = *i_link; | |
c906108c | 544 | } |
c5aa993b | 545 | |
07cd4b97 JB |
546 | /* If the shared object appears on the inferior's list too, then |
547 | it's still loaded, so we don't need to do anything. Delete | |
548 | it from the inferior's list, and leave it on GDB's list. */ | |
549 | if (i) | |
c906108c | 550 | { |
07cd4b97 | 551 | *i_link = i->next; |
07cd4b97 JB |
552 | free_so (i); |
553 | gdb_link = &gdb->next; | |
554 | gdb = *gdb_link; | |
555 | } | |
556 | ||
557 | /* If it's not on the inferior's list, remove it from GDB's tables. */ | |
558 | else | |
559 | { | |
42a6e6a0 MK |
560 | /* Notify any observer that the shared object has been |
561 | unloaded before we remove it from GDB's tables. */ | |
84acb35a JJ |
562 | observer_notify_solib_unloaded (gdb); |
563 | ||
07cd4b97 | 564 | *gdb_link = gdb->next; |
07cd4b97 JB |
565 | |
566 | /* Unless the user loaded it explicitly, free SO's objfile. */ | |
e8930304 | 567 | if (gdb->objfile && ! (gdb->objfile->flags & OBJF_USERLOADED)) |
07cd4b97 JB |
568 | free_objfile (gdb->objfile); |
569 | ||
570 | /* Some targets' section tables might be referring to | |
571 | sections from so->abfd; remove them. */ | |
572 | remove_target_sections (gdb->abfd); | |
573 | ||
574 | free_so (gdb); | |
575 | gdb = *gdb_link; | |
c906108c SS |
576 | } |
577 | } | |
c5aa993b | 578 | |
07cd4b97 JB |
579 | /* Now the inferior's list contains only shared objects that don't |
580 | appear in GDB's list --- those that are newly loaded. Add them | |
e8930304 | 581 | to GDB's shared object list. */ |
07cd4b97 | 582 | if (inferior) |
c906108c | 583 | { |
07cd4b97 JB |
584 | struct so_list *i; |
585 | ||
586 | /* Add the new shared objects to GDB's list. */ | |
587 | *gdb_link = inferior; | |
588 | ||
e8930304 | 589 | /* Fill in the rest of each of the `struct so_list' nodes. */ |
07cd4b97 | 590 | for (i = inferior; i; i = i->next) |
c906108c | 591 | { |
07cd4b97 JB |
592 | i->from_tty = from_tty; |
593 | ||
594 | /* Fill in the rest of the `struct so_list' node. */ | |
595 | catch_errors (solib_map_sections, i, | |
596 | "Error while mapping shared library sections:\n", | |
597 | RETURN_MASK_ALL); | |
07cd4b97 | 598 | |
b41be06e ND |
599 | /* If requested, add the shared object's sections to the TARGET's |
600 | section table. Do this immediately after mapping the object so | |
601 | that later nodes in the list can query this object, as is needed | |
602 | in solib-osf.c. */ | |
603 | if (target) | |
c906108c | 604 | { |
b41be06e ND |
605 | int count = (i->sections_end - i->sections); |
606 | if (count > 0) | |
07cd4b97 | 607 | { |
b41be06e | 608 | int space = target_resize_to_sections (target, count); |
07cd4b97 JB |
609 | memcpy (target->to_sections + space, |
610 | i->sections, | |
611 | count * sizeof (i->sections[0])); | |
07cd4b97 | 612 | } |
c906108c | 613 | } |
42a6e6a0 MK |
614 | |
615 | /* Notify any observer that the shared object has been | |
616 | loaded now that we've added it to GDB's tables. */ | |
617 | observer_notify_solib_loaded (i); | |
c906108c | 618 | } |
e8930304 | 619 | } |
105b175f JB |
620 | } |
621 | ||
6612ad7f JB |
622 | /* Return non-zero if SO is the libpthread shared library. |
623 | ||
624 | Uses a fairly simplistic heuristic approach where we check | |
625 | the file name against "/libpthread". This can lead to false | |
626 | positives, but this should be good enough in practice. */ | |
627 | ||
628 | static int | |
629 | libpthread_solib_p (struct so_list *so) | |
630 | { | |
631 | return (strstr (so->so_name, "/libpthread") != NULL); | |
632 | } | |
105b175f JB |
633 | |
634 | /* GLOBAL FUNCTION | |
635 | ||
636 | solib_add -- read in symbol info for newly added shared libraries | |
637 | ||
638 | SYNOPSIS | |
639 | ||
990f9fe3 FF |
640 | void solib_add (char *pattern, int from_tty, struct target_ops |
641 | *TARGET, int readsyms) | |
105b175f JB |
642 | |
643 | DESCRIPTION | |
644 | ||
645 | Read in symbolic information for any shared objects whose names | |
646 | match PATTERN. (If we've already read a shared object's symbol | |
647 | info, leave it alone.) If PATTERN is zero, read them all. | |
648 | ||
990f9fe3 FF |
649 | If READSYMS is 0, defer reading symbolic information until later |
650 | but still do any needed low level processing. | |
651 | ||
105b175f JB |
652 | FROM_TTY and TARGET are as described for update_solib_list, above. */ |
653 | ||
654 | void | |
990f9fe3 | 655 | solib_add (char *pattern, int from_tty, struct target_ops *target, int readsyms) |
105b175f JB |
656 | { |
657 | struct so_list *gdb; | |
658 | ||
659 | if (pattern) | |
660 | { | |
661 | char *re_err = re_comp (pattern); | |
662 | ||
663 | if (re_err) | |
8a3fe4f8 | 664 | error (_("Invalid regexp: %s"), re_err); |
105b175f JB |
665 | } |
666 | ||
667 | update_solib_list (from_tty, target); | |
c906108c | 668 | |
105b175f JB |
669 | /* Walk the list of currently loaded shared libraries, and read |
670 | symbols for any that match the pattern --- or any whose symbols | |
671 | aren't already loaded, if no pattern was given. */ | |
e8930304 JB |
672 | { |
673 | int any_matches = 0; | |
674 | int loaded_any_symbols = 0; | |
c906108c | 675 | |
e8930304 JB |
676 | for (gdb = so_list_head; gdb; gdb = gdb->next) |
677 | if (! pattern || re_exec (gdb->so_name)) | |
678 | { | |
6612ad7f JB |
679 | /* Normally, we would read the symbols from that library |
680 | only if READSYMS is set. However, we're making a small | |
681 | exception for the pthread library, because we sometimes | |
682 | need the library symbols to be loaded in order to provide | |
683 | thread support (x86-linux for instance). */ | |
684 | const int add_this_solib = | |
685 | (readsyms || libpthread_solib_p (gdb)); | |
686 | ||
e8930304 | 687 | any_matches = 1; |
6612ad7f | 688 | if (add_this_solib && solib_read_symbols (gdb, from_tty)) |
42a6e6a0 | 689 | loaded_any_symbols = 1; |
e8930304 JB |
690 | } |
691 | ||
692 | if (from_tty && pattern && ! any_matches) | |
693 | printf_unfiltered | |
694 | ("No loaded shared libraries match the pattern `%s'.\n", pattern); | |
695 | ||
696 | if (loaded_any_symbols) | |
697 | { | |
66aba65d MK |
698 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
699 | ||
e8930304 JB |
700 | /* Getting new symbols may change our opinion about what is |
701 | frameless. */ | |
702 | reinit_frame_cache (); | |
703 | ||
66aba65d | 704 | ops->special_symbol_handling (); |
e8930304 JB |
705 | } |
706 | } | |
c906108c SS |
707 | } |
708 | ||
07cd4b97 | 709 | |
c906108c SS |
710 | /* |
711 | ||
c5aa993b | 712 | LOCAL FUNCTION |
c906108c | 713 | |
c5aa993b | 714 | info_sharedlibrary_command -- code for "info sharedlibrary" |
c906108c | 715 | |
c5aa993b | 716 | SYNOPSIS |
c906108c | 717 | |
c5aa993b | 718 | static void info_sharedlibrary_command () |
c906108c | 719 | |
c5aa993b | 720 | DESCRIPTION |
c906108c | 721 | |
c5aa993b JM |
722 | Walk through the shared library list and print information |
723 | about each attached library. | |
724 | */ | |
c906108c SS |
725 | |
726 | static void | |
fba45db2 | 727 | info_sharedlibrary_command (char *ignore, int from_tty) |
c906108c | 728 | { |
52f0bd74 | 729 | struct so_list *so = NULL; /* link map state variable */ |
c906108c SS |
730 | int header_done = 0; |
731 | int addr_width; | |
c906108c | 732 | |
84eb3c4f | 733 | /* "0x", a little whitespace, and two hex digits per byte of pointers. */ |
819844ad | 734 | addr_width = 4 + (gdbarch_ptr_bit (current_gdbarch) / 4); |
c906108c | 735 | |
105b175f | 736 | update_solib_list (from_tty, 0); |
07cd4b97 JB |
737 | |
738 | for (so = so_list_head; so; so = so->next) | |
c906108c | 739 | { |
c5aa993b | 740 | if (so->so_name[0]) |
c906108c SS |
741 | { |
742 | if (!header_done) | |
743 | { | |
c5aa993b JM |
744 | printf_unfiltered ("%-*s%-*s%-12s%s\n", addr_width, "From", |
745 | addr_width, "To", "Syms Read", | |
746 | "Shared Object Library"); | |
c906108c SS |
747 | header_done++; |
748 | } | |
749 | ||
750 | printf_unfiltered ("%-*s", addr_width, | |
cfa9d6d9 | 751 | so->addr_high != 0 |
bb599908 | 752 | ? hex_string_custom ( |
cfa9d6d9 | 753 | (LONGEST) so->addr_low, |
bb599908 | 754 | addr_width - 4) |
749499cb | 755 | : ""); |
c906108c | 756 | printf_unfiltered ("%-*s", addr_width, |
cfa9d6d9 | 757 | so->addr_high != 0 |
bb599908 | 758 | ? hex_string_custom ( |
cfa9d6d9 | 759 | (LONGEST) so->addr_high, |
bb599908 | 760 | addr_width - 4) |
749499cb | 761 | : ""); |
c5aa993b JM |
762 | printf_unfiltered ("%-12s", so->symbols_loaded ? "Yes" : "No"); |
763 | printf_unfiltered ("%s\n", so->so_name); | |
c906108c SS |
764 | } |
765 | } | |
766 | if (so_list_head == NULL) | |
767 | { | |
a3f17187 | 768 | printf_unfiltered (_("No shared libraries loaded at this time.\n")); |
c906108c SS |
769 | } |
770 | } | |
771 | ||
772 | /* | |
773 | ||
c5aa993b | 774 | GLOBAL FUNCTION |
c906108c | 775 | |
c5aa993b | 776 | solib_address -- check to see if an address is in a shared lib |
c906108c | 777 | |
c5aa993b | 778 | SYNOPSIS |
c906108c | 779 | |
c5aa993b | 780 | char * solib_address (CORE_ADDR address) |
c906108c | 781 | |
c5aa993b | 782 | DESCRIPTION |
c906108c | 783 | |
c5aa993b JM |
784 | Provides a hook for other gdb routines to discover whether or |
785 | not a particular address is within the mapped address space of | |
749499cb | 786 | a shared library. |
c906108c | 787 | |
c5aa993b JM |
788 | For example, this routine is called at one point to disable |
789 | breakpoints which are in shared libraries that are not currently | |
790 | mapped in. | |
c906108c SS |
791 | */ |
792 | ||
793 | char * | |
fba45db2 | 794 | solib_address (CORE_ADDR address) |
c906108c | 795 | { |
52f0bd74 | 796 | struct so_list *so = 0; /* link map state variable */ |
c5aa993b | 797 | |
07cd4b97 | 798 | for (so = so_list_head; so; so = so->next) |
c906108c | 799 | { |
749499cb KB |
800 | struct section_table *p; |
801 | ||
802 | for (p = so->sections; p < so->sections_end; p++) | |
803 | { | |
804 | if (p->addr <= address && address < p->endaddr) | |
805 | return (so->so_name); | |
806 | } | |
c906108c | 807 | } |
07cd4b97 | 808 | |
c906108c SS |
809 | return (0); |
810 | } | |
811 | ||
812 | /* Called by free_all_symtabs */ | |
813 | ||
c5aa993b | 814 | void |
fba45db2 | 815 | clear_solib (void) |
c906108c | 816 | { |
66aba65d MK |
817 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
818 | ||
085dd6e6 JM |
819 | /* This function is expected to handle ELF shared libraries. It is |
820 | also used on Solaris, which can run either ELF or a.out binaries | |
821 | (for compatibility with SunOS 4), both of which can use shared | |
822 | libraries. So we don't know whether we have an ELF executable or | |
823 | an a.out executable until the user chooses an executable file. | |
824 | ||
825 | ELF shared libraries don't get mapped into the address space | |
826 | until after the program starts, so we'd better not try to insert | |
827 | breakpoints in them immediately. We have to wait until the | |
828 | dynamic linker has loaded them; we'll hit a bp_shlib_event | |
829 | breakpoint (look for calls to create_solib_event_breakpoint) when | |
830 | it's ready. | |
831 | ||
832 | SunOS shared libraries seem to be different --- they're present | |
833 | as soon as the process begins execution, so there's no need to | |
834 | put off inserting breakpoints. There's also nowhere to put a | |
835 | bp_shlib_event breakpoint, so if we put it off, we'll never get | |
836 | around to it. | |
837 | ||
838 | So: disable breakpoints only if we're using ELF shared libs. */ | |
839 | if (exec_bfd != NULL | |
840 | && bfd_get_flavour (exec_bfd) != bfd_target_aout_flavour) | |
841 | disable_breakpoints_in_shlibs (1); | |
842 | ||
c906108c SS |
843 | while (so_list_head) |
844 | { | |
07cd4b97 JB |
845 | struct so_list *so = so_list_head; |
846 | so_list_head = so->next; | |
2069d78d KB |
847 | if (so->abfd) |
848 | remove_target_sections (so->abfd); | |
07cd4b97 | 849 | free_so (so); |
c906108c | 850 | } |
07cd4b97 | 851 | |
66aba65d | 852 | ops->clear_solib (); |
c906108c SS |
853 | } |
854 | ||
855 | static void | |
4efb68b1 | 856 | do_clear_solib (void *dummy) |
c906108c SS |
857 | { |
858 | solib_cleanup_queued = 0; | |
859 | clear_solib (); | |
860 | } | |
861 | ||
13437d4b | 862 | /* GLOBAL FUNCTION |
c5aa993b JM |
863 | |
864 | solib_create_inferior_hook -- shared library startup support | |
865 | ||
866 | SYNOPSIS | |
867 | ||
7095b863 | 868 | void solib_create_inferior_hook () |
c5aa993b JM |
869 | |
870 | DESCRIPTION | |
871 | ||
872 | When gdb starts up the inferior, it nurses it along (through the | |
873 | shell) until it is ready to execute it's first instruction. At this | |
874 | point, this function gets called via expansion of the macro | |
13437d4b | 875 | SOLIB_CREATE_INFERIOR_HOOK. */ |
c5aa993b JM |
876 | |
877 | void | |
fba45db2 | 878 | solib_create_inferior_hook (void) |
c906108c | 879 | { |
66aba65d MK |
880 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
881 | ops->solib_create_inferior_hook(); | |
c906108c SS |
882 | } |
883 | ||
d7fa2ae2 KB |
884 | /* GLOBAL FUNCTION |
885 | ||
886 | in_solib_dynsym_resolve_code -- check to see if an address is in | |
887 | dynamic loader's dynamic symbol | |
888 | resolution code | |
889 | ||
890 | SYNOPSIS | |
891 | ||
892 | int in_solib_dynsym_resolve_code (CORE_ADDR pc) | |
893 | ||
894 | DESCRIPTION | |
895 | ||
896 | Determine if PC is in the dynamic linker's symbol resolution | |
897 | code. Return 1 if so, 0 otherwise. | |
898 | */ | |
899 | ||
900 | int | |
901 | in_solib_dynsym_resolve_code (CORE_ADDR pc) | |
902 | { | |
66aba65d MK |
903 | struct target_so_ops *ops = solib_ops (current_gdbarch); |
904 | return ops->in_dynsym_resolve_code (pc); | |
d7fa2ae2 | 905 | } |
c906108c SS |
906 | |
907 | /* | |
908 | ||
c5aa993b | 909 | LOCAL FUNCTION |
c906108c | 910 | |
c5aa993b | 911 | sharedlibrary_command -- handle command to explicitly add library |
c906108c | 912 | |
c5aa993b | 913 | SYNOPSIS |
c906108c | 914 | |
c5aa993b | 915 | static void sharedlibrary_command (char *args, int from_tty) |
c906108c | 916 | |
c5aa993b | 917 | DESCRIPTION |
c906108c | 918 | |
c5aa993b | 919 | */ |
c906108c SS |
920 | |
921 | static void | |
fba45db2 | 922 | sharedlibrary_command (char *args, int from_tty) |
c906108c SS |
923 | { |
924 | dont_repeat (); | |
990f9fe3 | 925 | solib_add (args, from_tty, (struct target_ops *) 0, 1); |
c906108c SS |
926 | } |
927 | ||
cb0ba49e MS |
928 | /* LOCAL FUNCTION |
929 | ||
930 | no_shared_libraries -- handle command to explicitly discard symbols | |
931 | from shared libraries. | |
932 | ||
933 | DESCRIPTION | |
934 | ||
935 | Implements the command "nosharedlibrary", which discards symbols | |
936 | that have been auto-loaded from shared libraries. Symbols from | |
937 | shared libraries that were added by explicit request of the user | |
938 | are not discarded. Also called from remote.c. */ | |
939 | ||
c60a7562 MS |
940 | void |
941 | no_shared_libraries (char *ignored, int from_tty) | |
942 | { | |
943 | objfile_purge_solibs (); | |
944 | do_clear_solib (NULL); | |
945 | } | |
c906108c | 946 | |
cf466558 | 947 | static void |
f397e303 AC |
948 | reload_shared_libraries (char *ignored, int from_tty, |
949 | struct cmd_list_element *e) | |
cf466558 KB |
950 | { |
951 | no_shared_libraries (NULL, from_tty); | |
952 | solib_add (NULL, from_tty, NULL, auto_solib_add); | |
953 | } | |
954 | ||
920d2a44 AC |
955 | static void |
956 | show_auto_solib_add (struct ui_file *file, int from_tty, | |
957 | struct cmd_list_element *c, const char *value) | |
958 | { | |
959 | fprintf_filtered (file, _("Autoloading of shared library symbols is %s.\n"), | |
960 | value); | |
961 | } | |
962 | ||
963 | ||
3a40aaa0 UW |
964 | /* Handler for library-specific lookup of global symbol NAME in OBJFILE. Call |
965 | the library-specific handler if it is installed for the current target. */ | |
966 | ||
967 | struct symbol * | |
968 | solib_global_lookup (const struct objfile *objfile, | |
969 | const char *name, | |
970 | const char *linkage_name, | |
971 | const domain_enum domain, | |
972 | struct symtab **symtab) | |
973 | { | |
974 | if (current_target_so_ops->lookup_lib_global_symbol != NULL) | |
975 | return current_target_so_ops->lookup_lib_global_symbol (objfile, | |
976 | name, linkage_name, domain, symtab); | |
977 | ||
978 | return NULL; | |
979 | } | |
980 | ||
981 | ||
a78f21af AC |
982 | extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */ |
983 | ||
c906108c | 984 | void |
fba45db2 | 985 | _initialize_solib (void) |
c906108c | 986 | { |
fa58ee11 EZ |
987 | struct cmd_list_element *c; |
988 | ||
66aba65d MK |
989 | solib_data = gdbarch_data_register_pre_init (solib_init); |
990 | ||
c906108c | 991 | add_com ("sharedlibrary", class_files, sharedlibrary_command, |
1bedd215 | 992 | _("Load shared object library symbols for files matching REGEXP.")); |
c5aa993b | 993 | add_info ("sharedlibrary", info_sharedlibrary_command, |
1bedd215 | 994 | _("Status of loaded shared object libraries.")); |
c60a7562 | 995 | add_com ("nosharedlibrary", class_files, no_shared_libraries, |
1bedd215 | 996 | _("Unload all shared object library symbols.")); |
c906108c | 997 | |
5bf193a2 AC |
998 | add_setshow_boolean_cmd ("auto-solib-add", class_support, |
999 | &auto_solib_add, _("\ | |
1000 | Set autoloading of shared library symbols."), _("\ | |
1001 | Show autoloading of shared library symbols."), _("\ | |
b7209cb4 FF |
1002 | If \"on\", symbols from all shared object libraries will be loaded\n\ |
1003 | automatically when the inferior begins execution, when the dynamic linker\n\ | |
1004 | informs gdb that a new library has been loaded, or when attaching to the\n\ | |
5bf193a2 AC |
1005 | inferior. Otherwise, symbols must be loaded manually, using `sharedlibrary'."), |
1006 | NULL, | |
920d2a44 | 1007 | show_auto_solib_add, |
5bf193a2 | 1008 | &setlist, &showlist); |
c906108c | 1009 | |
f822c95b DJ |
1010 | add_setshow_filename_cmd ("sysroot", class_support, |
1011 | &gdb_sysroot, _("\ | |
1012 | Set an alternate system root."), _("\ | |
1013 | Show the current system root."), _("\ | |
1014 | The system root is used to load absolute shared library symbol files.\n\ | |
1015 | For other (relative) files, you can add directories using\n\ | |
1016 | `set solib-search-path'."), | |
f397e303 AC |
1017 | reload_shared_libraries, |
1018 | NULL, | |
1019 | &setlist, &showlist); | |
c906108c | 1020 | |
f822c95b DJ |
1021 | add_alias_cmd ("solib-absolute-prefix", "sysroot", class_support, 0, |
1022 | &setlist); | |
1023 | add_alias_cmd ("solib-absolute-prefix", "sysroot", class_support, 0, | |
1024 | &showlist); | |
030292b7 | 1025 | |
525226b5 AC |
1026 | add_setshow_optional_filename_cmd ("solib-search-path", class_support, |
1027 | &solib_search_path, _("\ | |
1028 | Set the search path for loading non-absolute shared library symbol files."), _("\ | |
1029 | Show the search path for loading non-absolute shared library symbol files."), _("\ | |
1030 | This takes precedence over the environment variables PATH and LD_LIBRARY_PATH."), | |
1031 | reload_shared_libraries, | |
920d2a44 | 1032 | show_solib_search_path, |
525226b5 | 1033 | &setlist, &showlist); |
c906108c | 1034 | } |