Commit | Line | Data |
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c906108c | 1 | /* Generic symbol file reading for the GNU debugger, GDB. |
8926118c | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
4c38e0a4 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
777ea8f1 | 5 | Free Software Foundation, Inc. |
8926118c | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support, using pieces from other GDB modules. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
e17c207e | 25 | #include "arch-utils.h" |
086df311 | 26 | #include "bfdlink.h" |
c906108c SS |
27 | #include "symtab.h" |
28 | #include "gdbtypes.h" | |
29 | #include "gdbcore.h" | |
30 | #include "frame.h" | |
31 | #include "target.h" | |
32 | #include "value.h" | |
33 | #include "symfile.h" | |
34 | #include "objfiles.h" | |
0378c332 | 35 | #include "source.h" |
c906108c SS |
36 | #include "gdbcmd.h" |
37 | #include "breakpoint.h" | |
38 | #include "language.h" | |
39 | #include "complaints.h" | |
40 | #include "demangle.h" | |
fb14de7b UW |
41 | #include "inferior.h" |
42 | #include "regcache.h" | |
5b5d99cf | 43 | #include "filenames.h" /* for DOSish file names */ |
c906108c | 44 | #include "gdb-stabs.h" |
04ea0df1 | 45 | #include "gdb_obstack.h" |
d75b5104 | 46 | #include "completer.h" |
af5f3db6 | 47 | #include "bcache.h" |
2de7ced7 | 48 | #include "hashtab.h" |
dbda9972 | 49 | #include "readline/readline.h" |
7e8580c1 | 50 | #include "gdb_assert.h" |
fe898f56 | 51 | #include "block.h" |
ea53e89f | 52 | #include "observer.h" |
c1bd25fd | 53 | #include "exec.h" |
9bdcbae7 | 54 | #include "parser-defs.h" |
8756216b | 55 | #include "varobj.h" |
77069918 | 56 | #include "elf-bfd.h" |
e85a822c | 57 | #include "solib.h" |
f1838a98 | 58 | #include "remote.h" |
c906108c | 59 | |
c906108c SS |
60 | #include <sys/types.h> |
61 | #include <fcntl.h> | |
62 | #include "gdb_string.h" | |
63 | #include "gdb_stat.h" | |
64 | #include <ctype.h> | |
65 | #include <time.h> | |
2b71414d | 66 | #include <sys/time.h> |
c906108c | 67 | |
c906108c | 68 | |
9a4105ab AC |
69 | int (*deprecated_ui_load_progress_hook) (const char *section, unsigned long num); |
70 | void (*deprecated_show_load_progress) (const char *section, | |
5417f6dc RM |
71 | unsigned long section_sent, |
72 | unsigned long section_size, | |
73 | unsigned long total_sent, | |
c2d11a7d | 74 | unsigned long total_size); |
769d7dc4 AC |
75 | void (*deprecated_pre_add_symbol_hook) (const char *); |
76 | void (*deprecated_post_add_symbol_hook) (void); | |
c906108c | 77 | |
74b7792f AC |
78 | static void clear_symtab_users_cleanup (void *ignore); |
79 | ||
c906108c | 80 | /* Global variables owned by this file */ |
c5aa993b | 81 | int readnow_symbol_files; /* Read full symbols immediately */ |
c906108c | 82 | |
c906108c SS |
83 | /* External variables and functions referenced. */ |
84 | ||
a14ed312 | 85 | extern void report_transfer_performance (unsigned long, time_t, time_t); |
c906108c SS |
86 | |
87 | /* Functions this file defines */ | |
88 | ||
89 | #if 0 | |
a14ed312 KB |
90 | static int simple_read_overlay_region_table (void); |
91 | static void simple_free_overlay_region_table (void); | |
c906108c SS |
92 | #endif |
93 | ||
a14ed312 | 94 | static void load_command (char *, int); |
c906108c | 95 | |
d7db6da9 FN |
96 | static void symbol_file_add_main_1 (char *args, int from_tty, int flags); |
97 | ||
a14ed312 | 98 | static void add_symbol_file_command (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | bfd *symfile_bfd_open (char *); |
c906108c | 101 | |
0e931cf0 JB |
102 | int get_section_index (struct objfile *, char *); |
103 | ||
31d99776 | 104 | static struct sym_fns *find_sym_fns (bfd *); |
c906108c | 105 | |
a14ed312 | 106 | static void decrement_reading_symtab (void *); |
c906108c | 107 | |
a14ed312 | 108 | static void overlay_invalidate_all (void); |
c906108c | 109 | |
a14ed312 | 110 | void list_overlays_command (char *, int); |
c906108c | 111 | |
a14ed312 | 112 | void map_overlay_command (char *, int); |
c906108c | 113 | |
a14ed312 | 114 | void unmap_overlay_command (char *, int); |
c906108c | 115 | |
a14ed312 | 116 | static void overlay_auto_command (char *, int); |
c906108c | 117 | |
a14ed312 | 118 | static void overlay_manual_command (char *, int); |
c906108c | 119 | |
a14ed312 | 120 | static void overlay_off_command (char *, int); |
c906108c | 121 | |
a14ed312 | 122 | static void overlay_load_command (char *, int); |
c906108c | 123 | |
a14ed312 | 124 | static void overlay_command (char *, int); |
c906108c | 125 | |
a14ed312 | 126 | static void simple_free_overlay_table (void); |
c906108c | 127 | |
e17a4113 UW |
128 | static void read_target_long_array (CORE_ADDR, unsigned int *, int, int, |
129 | enum bfd_endian); | |
c906108c | 130 | |
a14ed312 | 131 | static int simple_read_overlay_table (void); |
c906108c | 132 | |
a14ed312 | 133 | static int simple_overlay_update_1 (struct obj_section *); |
c906108c | 134 | |
a14ed312 | 135 | static void add_filename_language (char *ext, enum language lang); |
392a587b | 136 | |
a14ed312 | 137 | static void info_ext_lang_command (char *args, int from_tty); |
392a587b | 138 | |
a14ed312 | 139 | static void init_filename_language_table (void); |
392a587b | 140 | |
31d99776 DJ |
141 | static void symfile_find_segment_sections (struct objfile *objfile); |
142 | ||
a14ed312 | 143 | void _initialize_symfile (void); |
c906108c SS |
144 | |
145 | /* List of all available sym_fns. On gdb startup, each object file reader | |
146 | calls add_symtab_fns() to register information on each format it is | |
147 | prepared to read. */ | |
148 | ||
149 | static struct sym_fns *symtab_fns = NULL; | |
150 | ||
151 | /* Flag for whether user will be reloading symbols multiple times. | |
152 | Defaults to ON for VxWorks, otherwise OFF. */ | |
153 | ||
154 | #ifdef SYMBOL_RELOADING_DEFAULT | |
155 | int symbol_reloading = SYMBOL_RELOADING_DEFAULT; | |
156 | #else | |
157 | int symbol_reloading = 0; | |
158 | #endif | |
920d2a44 AC |
159 | static void |
160 | show_symbol_reloading (struct ui_file *file, int from_tty, | |
161 | struct cmd_list_element *c, const char *value) | |
162 | { | |
163 | fprintf_filtered (file, _("\ | |
164 | Dynamic symbol table reloading multiple times in one run is %s.\n"), | |
165 | value); | |
166 | } | |
167 | ||
b7209cb4 FF |
168 | /* If non-zero, shared library symbols will be added automatically |
169 | when the inferior is created, new libraries are loaded, or when | |
170 | attaching to the inferior. This is almost always what users will | |
171 | want to have happen; but for very large programs, the startup time | |
172 | will be excessive, and so if this is a problem, the user can clear | |
173 | this flag and then add the shared library symbols as needed. Note | |
174 | that there is a potential for confusion, since if the shared | |
c906108c | 175 | library symbols are not loaded, commands like "info fun" will *not* |
b7209cb4 | 176 | report all the functions that are actually present. */ |
c906108c SS |
177 | |
178 | int auto_solib_add = 1; | |
b7209cb4 FF |
179 | |
180 | /* For systems that support it, a threshold size in megabytes. If | |
181 | automatically adding a new library's symbol table to those already | |
182 | known to the debugger would cause the total shared library symbol | |
183 | size to exceed this threshhold, then the shlib's symbols are not | |
184 | added. The threshold is ignored if the user explicitly asks for a | |
185 | shlib to be added, such as when using the "sharedlibrary" | |
186 | command. */ | |
187 | ||
188 | int auto_solib_limit; | |
c906108c | 189 | \f |
c5aa993b | 190 | |
0fe19209 DC |
191 | /* This compares two partial symbols by names, using strcmp_iw_ordered |
192 | for the comparison. */ | |
c906108c SS |
193 | |
194 | static int | |
0cd64fe2 | 195 | compare_psymbols (const void *s1p, const void *s2p) |
c906108c | 196 | { |
0fe19209 DC |
197 | struct partial_symbol *const *s1 = s1p; |
198 | struct partial_symbol *const *s2 = s2p; | |
199 | ||
4725b721 PH |
200 | return strcmp_iw_ordered (SYMBOL_SEARCH_NAME (*s1), |
201 | SYMBOL_SEARCH_NAME (*s2)); | |
c906108c SS |
202 | } |
203 | ||
204 | void | |
fba45db2 | 205 | sort_pst_symbols (struct partial_symtab *pst) |
c906108c SS |
206 | { |
207 | /* Sort the global list; don't sort the static list */ | |
208 | ||
c5aa993b JM |
209 | qsort (pst->objfile->global_psymbols.list + pst->globals_offset, |
210 | pst->n_global_syms, sizeof (struct partial_symbol *), | |
c906108c SS |
211 | compare_psymbols); |
212 | } | |
213 | ||
c906108c SS |
214 | /* Make a null terminated copy of the string at PTR with SIZE characters in |
215 | the obstack pointed to by OBSTACKP . Returns the address of the copy. | |
216 | Note that the string at PTR does not have to be null terminated, I.E. it | |
217 | may be part of a larger string and we are only saving a substring. */ | |
218 | ||
219 | char * | |
63ca651f | 220 | obsavestring (const char *ptr, int size, struct obstack *obstackp) |
c906108c | 221 | { |
52f0bd74 | 222 | char *p = (char *) obstack_alloc (obstackp, size + 1); |
c906108c SS |
223 | /* Open-coded memcpy--saves function call time. These strings are usually |
224 | short. FIXME: Is this really still true with a compiler that can | |
225 | inline memcpy? */ | |
226 | { | |
aa1ee363 AC |
227 | const char *p1 = ptr; |
228 | char *p2 = p; | |
63ca651f | 229 | const char *end = ptr + size; |
c906108c SS |
230 | while (p1 != end) |
231 | *p2++ = *p1++; | |
232 | } | |
233 | p[size] = 0; | |
234 | return p; | |
235 | } | |
236 | ||
237 | /* Concatenate strings S1, S2 and S3; return the new string. Space is found | |
238 | in the obstack pointed to by OBSTACKP. */ | |
239 | ||
240 | char * | |
fba45db2 KB |
241 | obconcat (struct obstack *obstackp, const char *s1, const char *s2, |
242 | const char *s3) | |
c906108c | 243 | { |
52f0bd74 AC |
244 | int len = strlen (s1) + strlen (s2) + strlen (s3) + 1; |
245 | char *val = (char *) obstack_alloc (obstackp, len); | |
c906108c SS |
246 | strcpy (val, s1); |
247 | strcat (val, s2); | |
248 | strcat (val, s3); | |
249 | return val; | |
250 | } | |
251 | ||
252 | /* True if we are nested inside psymtab_to_symtab. */ | |
253 | ||
254 | int currently_reading_symtab = 0; | |
255 | ||
256 | static void | |
fba45db2 | 257 | decrement_reading_symtab (void *dummy) |
c906108c SS |
258 | { |
259 | currently_reading_symtab--; | |
260 | } | |
261 | ||
262 | /* Get the symbol table that corresponds to a partial_symtab. | |
263 | This is fast after the first time you do it. In fact, there | |
264 | is an even faster macro PSYMTAB_TO_SYMTAB that does the fast | |
265 | case inline. */ | |
266 | ||
267 | struct symtab * | |
aa1ee363 | 268 | psymtab_to_symtab (struct partial_symtab *pst) |
c906108c SS |
269 | { |
270 | /* If it's been looked up before, return it. */ | |
271 | if (pst->symtab) | |
272 | return pst->symtab; | |
273 | ||
274 | /* If it has not yet been read in, read it. */ | |
275 | if (!pst->readin) | |
c5aa993b | 276 | { |
c906108c SS |
277 | struct cleanup *back_to = make_cleanup (decrement_reading_symtab, NULL); |
278 | currently_reading_symtab++; | |
279 | (*pst->read_symtab) (pst); | |
280 | do_cleanups (back_to); | |
281 | } | |
282 | ||
283 | return pst->symtab; | |
284 | } | |
285 | ||
5417f6dc RM |
286 | /* Remember the lowest-addressed loadable section we've seen. |
287 | This function is called via bfd_map_over_sections. | |
c906108c SS |
288 | |
289 | In case of equal vmas, the section with the largest size becomes the | |
290 | lowest-addressed loadable section. | |
291 | ||
292 | If the vmas and sizes are equal, the last section is considered the | |
293 | lowest-addressed loadable section. */ | |
294 | ||
295 | void | |
4efb68b1 | 296 | find_lowest_section (bfd *abfd, asection *sect, void *obj) |
c906108c | 297 | { |
c5aa993b | 298 | asection **lowest = (asection **) obj; |
c906108c | 299 | |
eb73e134 | 300 | if (0 == (bfd_get_section_flags (abfd, sect) & (SEC_ALLOC | SEC_LOAD))) |
c906108c SS |
301 | return; |
302 | if (!*lowest) | |
303 | *lowest = sect; /* First loadable section */ | |
304 | else if (bfd_section_vma (abfd, *lowest) > bfd_section_vma (abfd, sect)) | |
305 | *lowest = sect; /* A lower loadable section */ | |
306 | else if (bfd_section_vma (abfd, *lowest) == bfd_section_vma (abfd, sect) | |
307 | && (bfd_section_size (abfd, (*lowest)) | |
308 | <= bfd_section_size (abfd, sect))) | |
309 | *lowest = sect; | |
310 | } | |
311 | ||
a39a16c4 MM |
312 | /* Create a new section_addr_info, with room for NUM_SECTIONS. */ |
313 | ||
314 | struct section_addr_info * | |
315 | alloc_section_addr_info (size_t num_sections) | |
316 | { | |
317 | struct section_addr_info *sap; | |
318 | size_t size; | |
319 | ||
320 | size = (sizeof (struct section_addr_info) | |
321 | + sizeof (struct other_sections) * (num_sections - 1)); | |
322 | sap = (struct section_addr_info *) xmalloc (size); | |
323 | memset (sap, 0, size); | |
324 | sap->num_sections = num_sections; | |
325 | ||
326 | return sap; | |
327 | } | |
62557bbc KB |
328 | |
329 | /* Build (allocate and populate) a section_addr_info struct from | |
330 | an existing section table. */ | |
331 | ||
332 | extern struct section_addr_info * | |
0542c86d PA |
333 | build_section_addr_info_from_section_table (const struct target_section *start, |
334 | const struct target_section *end) | |
62557bbc KB |
335 | { |
336 | struct section_addr_info *sap; | |
0542c86d | 337 | const struct target_section *stp; |
62557bbc KB |
338 | int oidx; |
339 | ||
a39a16c4 | 340 | sap = alloc_section_addr_info (end - start); |
62557bbc KB |
341 | |
342 | for (stp = start, oidx = 0; stp != end; stp++) | |
343 | { | |
5417f6dc | 344 | if (bfd_get_section_flags (stp->bfd, |
fbd35540 | 345 | stp->the_bfd_section) & (SEC_ALLOC | SEC_LOAD) |
a39a16c4 | 346 | && oidx < end - start) |
62557bbc KB |
347 | { |
348 | sap->other[oidx].addr = stp->addr; | |
5417f6dc | 349 | sap->other[oidx].name |
fbd35540 | 350 | = xstrdup (bfd_section_name (stp->bfd, stp->the_bfd_section)); |
62557bbc KB |
351 | sap->other[oidx].sectindex = stp->the_bfd_section->index; |
352 | oidx++; | |
353 | } | |
354 | } | |
355 | ||
356 | return sap; | |
357 | } | |
358 | ||
089b4803 TG |
359 | /* Create a section_addr_info from section offsets in OBJFILE. */ |
360 | ||
567995e1 | 361 | struct section_addr_info * |
089b4803 TG |
362 | build_section_addr_info_from_objfile (const struct objfile *objfile) |
363 | { | |
364 | struct section_addr_info *sap; | |
365 | int i; | |
366 | struct bfd_section *sec; | |
367 | ||
368 | sap = alloc_section_addr_info (objfile->num_sections); | |
012836ea JK |
369 | for (i = 0, sec = objfile->obfd->sections; sec != NULL; sec = sec->next) |
370 | if (bfd_get_section_flags (objfile->obfd, sec) & (SEC_ALLOC | SEC_LOAD)) | |
371 | { | |
372 | sap->other[i].addr = (bfd_get_section_vma (objfile->obfd, sec) | |
4e7386b0 | 373 | + objfile->section_offsets->offsets[i]); |
012836ea JK |
374 | sap->other[i].name = xstrdup (bfd_get_section_name (objfile->obfd, |
375 | sec)); | |
376 | sap->other[i].sectindex = sec->index; | |
377 | i++; | |
378 | } | |
089b4803 TG |
379 | return sap; |
380 | } | |
381 | ||
62557bbc KB |
382 | |
383 | /* Free all memory allocated by build_section_addr_info_from_section_table. */ | |
384 | ||
385 | extern void | |
386 | free_section_addr_info (struct section_addr_info *sap) | |
387 | { | |
388 | int idx; | |
389 | ||
a39a16c4 | 390 | for (idx = 0; idx < sap->num_sections; idx++) |
62557bbc | 391 | if (sap->other[idx].name) |
b8c9b27d KB |
392 | xfree (sap->other[idx].name); |
393 | xfree (sap); | |
62557bbc KB |
394 | } |
395 | ||
396 | ||
e8289572 JB |
397 | /* Initialize OBJFILE's sect_index_* members. */ |
398 | static void | |
399 | init_objfile_sect_indices (struct objfile *objfile) | |
c906108c | 400 | { |
e8289572 | 401 | asection *sect; |
c906108c | 402 | int i; |
5417f6dc | 403 | |
b8fbeb18 | 404 | sect = bfd_get_section_by_name (objfile->obfd, ".text"); |
5417f6dc | 405 | if (sect) |
b8fbeb18 EZ |
406 | objfile->sect_index_text = sect->index; |
407 | ||
408 | sect = bfd_get_section_by_name (objfile->obfd, ".data"); | |
5417f6dc | 409 | if (sect) |
b8fbeb18 EZ |
410 | objfile->sect_index_data = sect->index; |
411 | ||
412 | sect = bfd_get_section_by_name (objfile->obfd, ".bss"); | |
5417f6dc | 413 | if (sect) |
b8fbeb18 EZ |
414 | objfile->sect_index_bss = sect->index; |
415 | ||
416 | sect = bfd_get_section_by_name (objfile->obfd, ".rodata"); | |
5417f6dc | 417 | if (sect) |
b8fbeb18 EZ |
418 | objfile->sect_index_rodata = sect->index; |
419 | ||
bbcd32ad FF |
420 | /* This is where things get really weird... We MUST have valid |
421 | indices for the various sect_index_* members or gdb will abort. | |
422 | So if for example, there is no ".text" section, we have to | |
31d99776 DJ |
423 | accomodate that. First, check for a file with the standard |
424 | one or two segments. */ | |
425 | ||
426 | symfile_find_segment_sections (objfile); | |
427 | ||
428 | /* Except when explicitly adding symbol files at some address, | |
429 | section_offsets contains nothing but zeros, so it doesn't matter | |
430 | which slot in section_offsets the individual sect_index_* members | |
431 | index into. So if they are all zero, it is safe to just point | |
432 | all the currently uninitialized indices to the first slot. But | |
433 | beware: if this is the main executable, it may be relocated | |
434 | later, e.g. by the remote qOffsets packet, and then this will | |
435 | be wrong! That's why we try segments first. */ | |
bbcd32ad FF |
436 | |
437 | for (i = 0; i < objfile->num_sections; i++) | |
438 | { | |
439 | if (ANOFFSET (objfile->section_offsets, i) != 0) | |
440 | { | |
441 | break; | |
442 | } | |
443 | } | |
444 | if (i == objfile->num_sections) | |
445 | { | |
446 | if (objfile->sect_index_text == -1) | |
447 | objfile->sect_index_text = 0; | |
448 | if (objfile->sect_index_data == -1) | |
449 | objfile->sect_index_data = 0; | |
450 | if (objfile->sect_index_bss == -1) | |
451 | objfile->sect_index_bss = 0; | |
452 | if (objfile->sect_index_rodata == -1) | |
453 | objfile->sect_index_rodata = 0; | |
454 | } | |
b8fbeb18 | 455 | } |
c906108c | 456 | |
c1bd25fd DJ |
457 | /* The arguments to place_section. */ |
458 | ||
459 | struct place_section_arg | |
460 | { | |
461 | struct section_offsets *offsets; | |
462 | CORE_ADDR lowest; | |
463 | }; | |
464 | ||
465 | /* Find a unique offset to use for loadable section SECT if | |
466 | the user did not provide an offset. */ | |
467 | ||
2c0b251b | 468 | static void |
c1bd25fd DJ |
469 | place_section (bfd *abfd, asection *sect, void *obj) |
470 | { | |
471 | struct place_section_arg *arg = obj; | |
472 | CORE_ADDR *offsets = arg->offsets->offsets, start_addr; | |
473 | int done; | |
3bd72c6f | 474 | ULONGEST align = ((ULONGEST) 1) << bfd_get_section_alignment (abfd, sect); |
c1bd25fd | 475 | |
2711e456 DJ |
476 | /* We are only interested in allocated sections. */ |
477 | if ((bfd_get_section_flags (abfd, sect) & SEC_ALLOC) == 0) | |
c1bd25fd DJ |
478 | return; |
479 | ||
480 | /* If the user specified an offset, honor it. */ | |
481 | if (offsets[sect->index] != 0) | |
482 | return; | |
483 | ||
484 | /* Otherwise, let's try to find a place for the section. */ | |
3bd72c6f DJ |
485 | start_addr = (arg->lowest + align - 1) & -align; |
486 | ||
c1bd25fd DJ |
487 | do { |
488 | asection *cur_sec; | |
c1bd25fd | 489 | |
c1bd25fd DJ |
490 | done = 1; |
491 | ||
492 | for (cur_sec = abfd->sections; cur_sec != NULL; cur_sec = cur_sec->next) | |
493 | { | |
494 | int indx = cur_sec->index; | |
495 | CORE_ADDR cur_offset; | |
496 | ||
497 | /* We don't need to compare against ourself. */ | |
498 | if (cur_sec == sect) | |
499 | continue; | |
500 | ||
2711e456 DJ |
501 | /* We can only conflict with allocated sections. */ |
502 | if ((bfd_get_section_flags (abfd, cur_sec) & SEC_ALLOC) == 0) | |
c1bd25fd DJ |
503 | continue; |
504 | ||
505 | /* If the section offset is 0, either the section has not been placed | |
506 | yet, or it was the lowest section placed (in which case LOWEST | |
507 | will be past its end). */ | |
508 | if (offsets[indx] == 0) | |
509 | continue; | |
510 | ||
511 | /* If this section would overlap us, then we must move up. */ | |
512 | if (start_addr + bfd_get_section_size (sect) > offsets[indx] | |
513 | && start_addr < offsets[indx] + bfd_get_section_size (cur_sec)) | |
514 | { | |
515 | start_addr = offsets[indx] + bfd_get_section_size (cur_sec); | |
516 | start_addr = (start_addr + align - 1) & -align; | |
517 | done = 0; | |
3bd72c6f | 518 | break; |
c1bd25fd DJ |
519 | } |
520 | ||
521 | /* Otherwise, we appear to be OK. So far. */ | |
522 | } | |
523 | } | |
524 | while (!done); | |
525 | ||
526 | offsets[sect->index] = start_addr; | |
527 | arg->lowest = start_addr + bfd_get_section_size (sect); | |
c1bd25fd | 528 | } |
e8289572 | 529 | |
75242ef4 JK |
530 | /* Store struct section_addr_info as prepared (made relative and with SECTINDEX |
531 | filled-in) by addr_info_make_relative into SECTION_OFFSETS of NUM_SECTIONS | |
532 | entries. */ | |
e8289572 JB |
533 | |
534 | void | |
75242ef4 JK |
535 | relative_addr_info_to_section_offsets (struct section_offsets *section_offsets, |
536 | int num_sections, | |
537 | struct section_addr_info *addrs) | |
e8289572 JB |
538 | { |
539 | int i; | |
540 | ||
75242ef4 | 541 | memset (section_offsets, 0, SIZEOF_N_SECTION_OFFSETS (num_sections)); |
e8289572 | 542 | |
75242ef4 | 543 | /* Now calculate offsets for section that were specified by the caller. */ |
a39a16c4 | 544 | for (i = 0; i < addrs->num_sections && addrs->other[i].name; i++) |
e8289572 | 545 | { |
75242ef4 | 546 | struct other_sections *osp; |
e8289572 | 547 | |
75242ef4 | 548 | osp = &addrs->other[i]; |
e8289572 JB |
549 | if (osp->addr == 0) |
550 | continue; | |
551 | ||
552 | /* Record all sections in offsets */ | |
553 | /* The section_offsets in the objfile are here filled in using | |
554 | the BFD index. */ | |
75242ef4 JK |
555 | section_offsets->offsets[osp->sectindex] = osp->addr; |
556 | } | |
557 | } | |
558 | ||
559 | /* Relativize absolute addresses in ADDRS into offsets based on ABFD. Fill-in | |
672d9c23 JK |
560 | also SECTINDEXes specific to ABFD there. This function can be used to |
561 | rebase ADDRS to start referencing different BFD than before. */ | |
75242ef4 JK |
562 | |
563 | void | |
564 | addr_info_make_relative (struct section_addr_info *addrs, bfd *abfd) | |
565 | { | |
566 | asection *lower_sect; | |
75242ef4 JK |
567 | CORE_ADDR lower_offset; |
568 | int i; | |
569 | ||
570 | /* Find lowest loadable section to be used as starting point for | |
e76ab67f DJ |
571 | continguous sections. */ |
572 | lower_sect = NULL; | |
573 | bfd_map_over_sections (abfd, find_lowest_section, &lower_sect); | |
75242ef4 JK |
574 | if (lower_sect == NULL) |
575 | { | |
576 | warning (_("no loadable sections found in added symbol-file %s"), | |
577 | bfd_get_filename (abfd)); | |
578 | lower_offset = 0; | |
e8289572 | 579 | } |
75242ef4 JK |
580 | else |
581 | lower_offset = bfd_section_vma (bfd_get_filename (abfd), lower_sect); | |
582 | ||
583 | /* Calculate offsets for the loadable sections. | |
584 | FIXME! Sections must be in order of increasing loadable section | |
585 | so that contiguous sections can use the lower-offset!!! | |
586 | ||
587 | Adjust offsets if the segments are not contiguous. | |
588 | If the section is contiguous, its offset should be set to | |
589 | the offset of the highest loadable section lower than it | |
590 | (the loadable section directly below it in memory). | |
591 | this_offset = lower_offset = lower_addr - lower_orig_addr */ | |
592 | ||
593 | for (i = 0; i < addrs->num_sections && addrs->other[i].name; i++) | |
594 | { | |
b0fcb67f JK |
595 | const char *sect_name = addrs->other[i].name; |
596 | asection *sect = bfd_get_section_by_name (abfd, sect_name); | |
672d9c23 JK |
597 | |
598 | if (sect) | |
75242ef4 | 599 | { |
672d9c23 JK |
600 | /* This is the index used by BFD. */ |
601 | addrs->other[i].sectindex = sect->index; | |
602 | ||
603 | if (addrs->other[i].addr != 0) | |
75242ef4 JK |
604 | { |
605 | addrs->other[i].addr -= bfd_section_vma (abfd, sect); | |
606 | lower_offset = addrs->other[i].addr; | |
75242ef4 JK |
607 | } |
608 | else | |
672d9c23 | 609 | addrs->other[i].addr = lower_offset; |
75242ef4 JK |
610 | } |
611 | else | |
672d9c23 | 612 | { |
b0fcb67f JK |
613 | /* This section does not exist in ABFD, which is normally |
614 | unexpected and we want to issue a warning. | |
615 | ||
616 | However, the ELF prelinker does create a couple of sections | |
617 | (".gnu.liblist" and ".gnu.conflict") which are marked in the main | |
618 | executable as loadable (they are loaded in memory from the | |
619 | DYNAMIC segment) and yet are not present in separate debug info | |
620 | files. This is fine, and should not cause a warning. Shared | |
621 | libraries contain just the section ".gnu.liblist" but it is not | |
622 | marked as loadable there. */ | |
623 | ||
624 | if (!(strcmp (sect_name, ".gnu.liblist") == 0 | |
625 | || strcmp (sect_name, ".gnu.conflict") == 0)) | |
626 | warning (_("section %s not found in %s"), sect_name, | |
627 | bfd_get_filename (abfd)); | |
628 | ||
672d9c23 JK |
629 | addrs->other[i].addr = 0; |
630 | ||
631 | /* SECTINDEX is invalid if ADDR is zero. */ | |
632 | } | |
75242ef4 JK |
633 | } |
634 | } | |
635 | ||
636 | /* Parse the user's idea of an offset for dynamic linking, into our idea | |
637 | of how to represent it for fast symbol reading. This is the default | |
638 | version of the sym_fns.sym_offsets function for symbol readers that | |
639 | don't need to do anything special. It allocates a section_offsets table | |
640 | for the objectfile OBJFILE and stuffs ADDR into all of the offsets. */ | |
641 | ||
642 | void | |
643 | default_symfile_offsets (struct objfile *objfile, | |
644 | struct section_addr_info *addrs) | |
645 | { | |
646 | objfile->num_sections = bfd_count_sections (objfile->obfd); | |
647 | objfile->section_offsets = (struct section_offsets *) | |
648 | obstack_alloc (&objfile->objfile_obstack, | |
649 | SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)); | |
650 | relative_addr_info_to_section_offsets (objfile->section_offsets, | |
651 | objfile->num_sections, addrs); | |
e8289572 | 652 | |
c1bd25fd DJ |
653 | /* For relocatable files, all loadable sections will start at zero. |
654 | The zero is meaningless, so try to pick arbitrary addresses such | |
655 | that no loadable sections overlap. This algorithm is quadratic, | |
656 | but the number of sections in a single object file is generally | |
657 | small. */ | |
658 | if ((bfd_get_file_flags (objfile->obfd) & (EXEC_P | DYNAMIC)) == 0) | |
659 | { | |
660 | struct place_section_arg arg; | |
2711e456 DJ |
661 | bfd *abfd = objfile->obfd; |
662 | asection *cur_sec; | |
663 | CORE_ADDR lowest = 0; | |
664 | ||
665 | for (cur_sec = abfd->sections; cur_sec != NULL; cur_sec = cur_sec->next) | |
666 | /* We do not expect this to happen; just skip this step if the | |
667 | relocatable file has a section with an assigned VMA. */ | |
668 | if (bfd_section_vma (abfd, cur_sec) != 0) | |
669 | break; | |
670 | ||
671 | if (cur_sec == NULL) | |
672 | { | |
673 | CORE_ADDR *offsets = objfile->section_offsets->offsets; | |
674 | ||
675 | /* Pick non-overlapping offsets for sections the user did not | |
676 | place explicitly. */ | |
677 | arg.offsets = objfile->section_offsets; | |
678 | arg.lowest = 0; | |
679 | bfd_map_over_sections (objfile->obfd, place_section, &arg); | |
680 | ||
681 | /* Correctly filling in the section offsets is not quite | |
682 | enough. Relocatable files have two properties that | |
683 | (most) shared objects do not: | |
684 | ||
685 | - Their debug information will contain relocations. Some | |
686 | shared libraries do also, but many do not, so this can not | |
687 | be assumed. | |
688 | ||
689 | - If there are multiple code sections they will be loaded | |
690 | at different relative addresses in memory than they are | |
691 | in the objfile, since all sections in the file will start | |
692 | at address zero. | |
693 | ||
694 | Because GDB has very limited ability to map from an | |
695 | address in debug info to the correct code section, | |
696 | it relies on adding SECT_OFF_TEXT to things which might be | |
697 | code. If we clear all the section offsets, and set the | |
698 | section VMAs instead, then symfile_relocate_debug_section | |
699 | will return meaningful debug information pointing at the | |
700 | correct sections. | |
701 | ||
702 | GDB has too many different data structures for section | |
703 | addresses - a bfd, objfile, and so_list all have section | |
704 | tables, as does exec_ops. Some of these could probably | |
705 | be eliminated. */ | |
706 | ||
707 | for (cur_sec = abfd->sections; cur_sec != NULL; | |
708 | cur_sec = cur_sec->next) | |
709 | { | |
710 | if ((bfd_get_section_flags (abfd, cur_sec) & SEC_ALLOC) == 0) | |
711 | continue; | |
712 | ||
713 | bfd_set_section_vma (abfd, cur_sec, offsets[cur_sec->index]); | |
30510692 DJ |
714 | exec_set_section_address (bfd_get_filename (abfd), cur_sec->index, |
715 | offsets[cur_sec->index]); | |
2711e456 DJ |
716 | offsets[cur_sec->index] = 0; |
717 | } | |
718 | } | |
c1bd25fd DJ |
719 | } |
720 | ||
e8289572 JB |
721 | /* Remember the bfd indexes for the .text, .data, .bss and |
722 | .rodata sections. */ | |
723 | init_objfile_sect_indices (objfile); | |
724 | } | |
725 | ||
726 | ||
31d99776 DJ |
727 | /* Divide the file into segments, which are individual relocatable units. |
728 | This is the default version of the sym_fns.sym_segments function for | |
729 | symbol readers that do not have an explicit representation of segments. | |
730 | It assumes that object files do not have segments, and fully linked | |
731 | files have a single segment. */ | |
732 | ||
733 | struct symfile_segment_data * | |
734 | default_symfile_segments (bfd *abfd) | |
735 | { | |
736 | int num_sections, i; | |
737 | asection *sect; | |
738 | struct symfile_segment_data *data; | |
739 | CORE_ADDR low, high; | |
740 | ||
741 | /* Relocatable files contain enough information to position each | |
742 | loadable section independently; they should not be relocated | |
743 | in segments. */ | |
744 | if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC)) == 0) | |
745 | return NULL; | |
746 | ||
747 | /* Make sure there is at least one loadable section in the file. */ | |
748 | for (sect = abfd->sections; sect != NULL; sect = sect->next) | |
749 | { | |
750 | if ((bfd_get_section_flags (abfd, sect) & SEC_ALLOC) == 0) | |
751 | continue; | |
752 | ||
753 | break; | |
754 | } | |
755 | if (sect == NULL) | |
756 | return NULL; | |
757 | ||
758 | low = bfd_get_section_vma (abfd, sect); | |
759 | high = low + bfd_get_section_size (sect); | |
760 | ||
761 | data = XZALLOC (struct symfile_segment_data); | |
762 | data->num_segments = 1; | |
763 | data->segment_bases = XCALLOC (1, CORE_ADDR); | |
764 | data->segment_sizes = XCALLOC (1, CORE_ADDR); | |
765 | ||
766 | num_sections = bfd_count_sections (abfd); | |
767 | data->segment_info = XCALLOC (num_sections, int); | |
768 | ||
769 | for (i = 0, sect = abfd->sections; sect != NULL; i++, sect = sect->next) | |
770 | { | |
771 | CORE_ADDR vma; | |
772 | ||
773 | if ((bfd_get_section_flags (abfd, sect) & SEC_ALLOC) == 0) | |
774 | continue; | |
775 | ||
776 | vma = bfd_get_section_vma (abfd, sect); | |
777 | if (vma < low) | |
778 | low = vma; | |
779 | if (vma + bfd_get_section_size (sect) > high) | |
780 | high = vma + bfd_get_section_size (sect); | |
781 | ||
782 | data->segment_info[i] = 1; | |
783 | } | |
784 | ||
785 | data->segment_bases[0] = low; | |
786 | data->segment_sizes[0] = high - low; | |
787 | ||
788 | return data; | |
789 | } | |
790 | ||
c906108c SS |
791 | /* Process a symbol file, as either the main file or as a dynamically |
792 | loaded file. | |
793 | ||
96baa820 JM |
794 | OBJFILE is where the symbols are to be read from. |
795 | ||
7e8580c1 JB |
796 | ADDRS is the list of section load addresses. If the user has given |
797 | an 'add-symbol-file' command, then this is the list of offsets and | |
798 | addresses he or she provided as arguments to the command; or, if | |
799 | we're handling a shared library, these are the actual addresses the | |
800 | sections are loaded at, according to the inferior's dynamic linker | |
801 | (as gleaned by GDB's shared library code). We convert each address | |
802 | into an offset from the section VMA's as it appears in the object | |
803 | file, and then call the file's sym_offsets function to convert this | |
804 | into a format-specific offset table --- a `struct section_offsets'. | |
805 | If ADDRS is non-zero, OFFSETS must be zero. | |
806 | ||
807 | OFFSETS is a table of section offsets already in the right | |
808 | format-specific representation. NUM_OFFSETS is the number of | |
809 | elements present in OFFSETS->offsets. If OFFSETS is non-zero, we | |
810 | assume this is the proper table the call to sym_offsets described | |
811 | above would produce. Instead of calling sym_offsets, we just dump | |
812 | it right into objfile->section_offsets. (When we're re-reading | |
813 | symbols from an objfile, we don't have the original load address | |
814 | list any more; all we have is the section offset table.) If | |
815 | OFFSETS is non-zero, ADDRS must be zero. | |
96baa820 | 816 | |
7eedccfa PP |
817 | ADD_FLAGS encodes verbosity level, whether this is main symbol or |
818 | an extra symbol file such as dynamically loaded code, and wether | |
819 | breakpoint reset should be deferred. */ | |
c906108c SS |
820 | |
821 | void | |
7e8580c1 JB |
822 | syms_from_objfile (struct objfile *objfile, |
823 | struct section_addr_info *addrs, | |
824 | struct section_offsets *offsets, | |
825 | int num_offsets, | |
7eedccfa | 826 | int add_flags) |
c906108c | 827 | { |
a39a16c4 | 828 | struct section_addr_info *local_addr = NULL; |
c906108c | 829 | struct cleanup *old_chain; |
7eedccfa | 830 | const int mainline = add_flags & SYMFILE_MAINLINE; |
2acceee2 | 831 | |
7e8580c1 | 832 | gdb_assert (! (addrs && offsets)); |
2acceee2 | 833 | |
c906108c | 834 | init_entry_point_info (objfile); |
31d99776 | 835 | objfile->sf = find_sym_fns (objfile->obfd); |
c906108c | 836 | |
75245b24 MS |
837 | if (objfile->sf == NULL) |
838 | return; /* No symbols. */ | |
839 | ||
c906108c SS |
840 | /* Make sure that partially constructed symbol tables will be cleaned up |
841 | if an error occurs during symbol reading. */ | |
74b7792f | 842 | old_chain = make_cleanup_free_objfile (objfile); |
c906108c | 843 | |
a39a16c4 MM |
844 | /* If ADDRS and OFFSETS are both NULL, put together a dummy address |
845 | list. We now establish the convention that an addr of zero means | |
846 | no load address was specified. */ | |
847 | if (! addrs && ! offsets) | |
848 | { | |
5417f6dc | 849 | local_addr |
a39a16c4 MM |
850 | = alloc_section_addr_info (bfd_count_sections (objfile->obfd)); |
851 | make_cleanup (xfree, local_addr); | |
852 | addrs = local_addr; | |
853 | } | |
854 | ||
855 | /* Now either addrs or offsets is non-zero. */ | |
856 | ||
c5aa993b | 857 | if (mainline) |
c906108c SS |
858 | { |
859 | /* We will modify the main symbol table, make sure that all its users | |
c5aa993b | 860 | will be cleaned up if an error occurs during symbol reading. */ |
74b7792f | 861 | make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/); |
c906108c SS |
862 | |
863 | /* Since no error yet, throw away the old symbol table. */ | |
864 | ||
865 | if (symfile_objfile != NULL) | |
866 | { | |
867 | free_objfile (symfile_objfile); | |
adb7f338 | 868 | gdb_assert (symfile_objfile == NULL); |
c906108c SS |
869 | } |
870 | ||
871 | /* Currently we keep symbols from the add-symbol-file command. | |
c5aa993b JM |
872 | If the user wants to get rid of them, they should do "symbol-file" |
873 | without arguments first. Not sure this is the best behavior | |
874 | (PR 2207). */ | |
c906108c | 875 | |
c5aa993b | 876 | (*objfile->sf->sym_new_init) (objfile); |
c906108c SS |
877 | } |
878 | ||
879 | /* Convert addr into an offset rather than an absolute address. | |
880 | We find the lowest address of a loaded segment in the objfile, | |
53a5351d | 881 | and assume that <addr> is where that got loaded. |
c906108c | 882 | |
53a5351d JM |
883 | We no longer warn if the lowest section is not a text segment (as |
884 | happens for the PA64 port. */ | |
0d15807d | 885 | if (addrs && addrs->other[0].name) |
75242ef4 | 886 | addr_info_make_relative (addrs, objfile->obfd); |
c906108c SS |
887 | |
888 | /* Initialize symbol reading routines for this objfile, allow complaints to | |
889 | appear for this new file, and record how verbose to be, then do the | |
890 | initial symbol reading for this file. */ | |
891 | ||
c5aa993b | 892 | (*objfile->sf->sym_init) (objfile); |
7eedccfa | 893 | clear_complaints (&symfile_complaints, 1, add_flags & SYMFILE_VERBOSE); |
c906108c | 894 | |
7e8580c1 JB |
895 | if (addrs) |
896 | (*objfile->sf->sym_offsets) (objfile, addrs); | |
897 | else | |
898 | { | |
899 | size_t size = SIZEOF_N_SECTION_OFFSETS (num_offsets); | |
900 | ||
901 | /* Just copy in the offset table directly as given to us. */ | |
902 | objfile->num_sections = num_offsets; | |
903 | objfile->section_offsets | |
904 | = ((struct section_offsets *) | |
8b92e4d5 | 905 | obstack_alloc (&objfile->objfile_obstack, size)); |
7e8580c1 JB |
906 | memcpy (objfile->section_offsets, offsets, size); |
907 | ||
908 | init_objfile_sect_indices (objfile); | |
909 | } | |
c906108c | 910 | |
f4352531 | 911 | (*objfile->sf->sym_read) (objfile, add_flags); |
c906108c | 912 | |
c906108c SS |
913 | /* Discard cleanups as symbol reading was successful. */ |
914 | ||
915 | discard_cleanups (old_chain); | |
f7545552 | 916 | xfree (local_addr); |
c906108c SS |
917 | } |
918 | ||
919 | /* Perform required actions after either reading in the initial | |
920 | symbols for a new objfile, or mapping in the symbols from a reusable | |
921 | objfile. */ | |
c5aa993b | 922 | |
c906108c | 923 | void |
7eedccfa | 924 | new_symfile_objfile (struct objfile *objfile, int add_flags) |
c906108c SS |
925 | { |
926 | ||
927 | /* If this is the main symbol file we have to clean up all users of the | |
928 | old main symbol file. Otherwise it is sufficient to fixup all the | |
929 | breakpoints that may have been redefined by this symbol file. */ | |
7eedccfa | 930 | if (add_flags & SYMFILE_MAINLINE) |
c906108c SS |
931 | { |
932 | /* OK, make it the "real" symbol file. */ | |
933 | symfile_objfile = objfile; | |
934 | ||
935 | clear_symtab_users (); | |
936 | } | |
7eedccfa | 937 | else if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0) |
c906108c | 938 | { |
69de3c6a | 939 | breakpoint_re_set (); |
c906108c SS |
940 | } |
941 | ||
942 | /* We're done reading the symbol file; finish off complaints. */ | |
7eedccfa | 943 | clear_complaints (&symfile_complaints, 0, add_flags & SYMFILE_VERBOSE); |
c906108c SS |
944 | } |
945 | ||
946 | /* Process a symbol file, as either the main file or as a dynamically | |
947 | loaded file. | |
948 | ||
5417f6dc RM |
949 | ABFD is a BFD already open on the file, as from symfile_bfd_open. |
950 | This BFD will be closed on error, and is always consumed by this function. | |
7904e09f | 951 | |
7eedccfa PP |
952 | ADD_FLAGS encodes verbosity, whether this is main symbol file or |
953 | extra, such as dynamically loaded code, and what to do with breakpoins. | |
7904e09f JB |
954 | |
955 | ADDRS, OFFSETS, and NUM_OFFSETS are as described for | |
7eedccfa PP |
956 | syms_from_objfile, above. |
957 | ADDRS is ignored when SYMFILE_MAINLINE bit is set in ADD_FLAGS. | |
c906108c | 958 | |
c906108c SS |
959 | Upon success, returns a pointer to the objfile that was added. |
960 | Upon failure, jumps back to command level (never returns). */ | |
7eedccfa | 961 | |
7904e09f | 962 | static struct objfile * |
7eedccfa PP |
963 | symbol_file_add_with_addrs_or_offsets (bfd *abfd, |
964 | int add_flags, | |
7904e09f JB |
965 | struct section_addr_info *addrs, |
966 | struct section_offsets *offsets, | |
967 | int num_offsets, | |
7eedccfa | 968 | int flags) |
c906108c SS |
969 | { |
970 | struct objfile *objfile; | |
971 | struct partial_symtab *psymtab; | |
a39a16c4 | 972 | struct cleanup *my_cleanups; |
5417f6dc | 973 | const char *name = bfd_get_filename (abfd); |
7eedccfa | 974 | const int from_tty = add_flags & SYMFILE_VERBOSE; |
c906108c | 975 | |
5417f6dc | 976 | my_cleanups = make_cleanup_bfd_close (abfd); |
c906108c | 977 | |
5417f6dc RM |
978 | /* Give user a chance to burp if we'd be |
979 | interactively wiping out any existing symbols. */ | |
c906108c SS |
980 | |
981 | if ((have_full_symbols () || have_partial_symbols ()) | |
7eedccfa | 982 | && (add_flags & SYMFILE_MAINLINE) |
c906108c | 983 | && from_tty |
9e2f0ad4 | 984 | && !query (_("Load new symbol table from \"%s\"? "), name)) |
8a3fe4f8 | 985 | error (_("Not confirmed.")); |
c906108c | 986 | |
2df3850c | 987 | objfile = allocate_objfile (abfd, flags); |
5417f6dc | 988 | discard_cleanups (my_cleanups); |
c906108c | 989 | |
78a4a9b9 AC |
990 | /* We either created a new mapped symbol table, mapped an existing |
991 | symbol table file which has not had initial symbol reading | |
992 | performed, or need to read an unmapped symbol table. */ | |
993 | if (from_tty || info_verbose) | |
c906108c | 994 | { |
769d7dc4 AC |
995 | if (deprecated_pre_add_symbol_hook) |
996 | deprecated_pre_add_symbol_hook (name); | |
78a4a9b9 | 997 | else |
c906108c | 998 | { |
55333a84 DE |
999 | printf_unfiltered (_("Reading symbols from %s..."), name); |
1000 | wrap_here (""); | |
1001 | gdb_flush (gdb_stdout); | |
c906108c | 1002 | } |
c906108c | 1003 | } |
78a4a9b9 | 1004 | syms_from_objfile (objfile, addrs, offsets, num_offsets, |
7eedccfa | 1005 | add_flags); |
c906108c SS |
1006 | |
1007 | /* We now have at least a partial symbol table. Check to see if the | |
1008 | user requested that all symbols be read on initial access via either | |
1009 | the gdb startup command line or on a per symbol file basis. Expand | |
1010 | all partial symbol tables for this objfile if so. */ | |
1011 | ||
2acceee2 | 1012 | if ((flags & OBJF_READNOW) || readnow_symbol_files) |
c906108c | 1013 | { |
55333a84 | 1014 | if (from_tty || info_verbose) |
c906108c | 1015 | { |
a3f17187 | 1016 | printf_unfiltered (_("expanding to full symbols...")); |
c906108c SS |
1017 | wrap_here (""); |
1018 | gdb_flush (gdb_stdout); | |
1019 | } | |
1020 | ||
c5aa993b | 1021 | for (psymtab = objfile->psymtabs; |
c906108c | 1022 | psymtab != NULL; |
c5aa993b | 1023 | psymtab = psymtab->next) |
c906108c SS |
1024 | { |
1025 | psymtab_to_symtab (psymtab); | |
1026 | } | |
1027 | } | |
1028 | ||
55333a84 | 1029 | if ((from_tty || info_verbose) |
e361b228 | 1030 | && !objfile_has_symbols (objfile)) |
cb3c37b2 JB |
1031 | { |
1032 | wrap_here (""); | |
55333a84 | 1033 | printf_unfiltered (_("(no debugging symbols found)...")); |
cb3c37b2 JB |
1034 | wrap_here (""); |
1035 | } | |
1036 | ||
c906108c SS |
1037 | if (from_tty || info_verbose) |
1038 | { | |
769d7dc4 AC |
1039 | if (deprecated_post_add_symbol_hook) |
1040 | deprecated_post_add_symbol_hook (); | |
c906108c | 1041 | else |
55333a84 | 1042 | printf_unfiltered (_("done.\n")); |
c906108c SS |
1043 | } |
1044 | ||
481d0f41 JB |
1045 | /* We print some messages regardless of whether 'from_tty || |
1046 | info_verbose' is true, so make sure they go out at the right | |
1047 | time. */ | |
1048 | gdb_flush (gdb_stdout); | |
1049 | ||
a39a16c4 MM |
1050 | do_cleanups (my_cleanups); |
1051 | ||
109f874e | 1052 | if (objfile->sf == NULL) |
8caee43b PP |
1053 | { |
1054 | observer_notify_new_objfile (objfile); | |
1055 | return objfile; /* No symbols. */ | |
1056 | } | |
109f874e | 1057 | |
7eedccfa | 1058 | new_symfile_objfile (objfile, add_flags); |
c906108c | 1059 | |
06d3b283 | 1060 | observer_notify_new_objfile (objfile); |
c906108c | 1061 | |
ce7d4522 | 1062 | bfd_cache_close_all (); |
c906108c SS |
1063 | return (objfile); |
1064 | } | |
1065 | ||
9cce227f TG |
1066 | /* Add BFD as a separate debug file for OBJFILE. */ |
1067 | ||
1068 | void | |
1069 | symbol_file_add_separate (bfd *bfd, int symfile_flags, struct objfile *objfile) | |
1070 | { | |
15d123c9 | 1071 | struct objfile *new_objfile; |
089b4803 TG |
1072 | struct section_addr_info *sap; |
1073 | struct cleanup *my_cleanup; | |
1074 | ||
1075 | /* Create section_addr_info. We can't directly use offsets from OBJFILE | |
1076 | because sections of BFD may not match sections of OBJFILE and because | |
1077 | vma may have been modified by tools such as prelink. */ | |
1078 | sap = build_section_addr_info_from_objfile (objfile); | |
1079 | my_cleanup = make_cleanup_free_section_addr_info (sap); | |
9cce227f | 1080 | |
15d123c9 | 1081 | new_objfile = symbol_file_add_with_addrs_or_offsets |
9cce227f | 1082 | (bfd, symfile_flags, |
089b4803 | 1083 | sap, NULL, 0, |
9cce227f TG |
1084 | objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW |
1085 | | OBJF_USERLOADED)); | |
089b4803 TG |
1086 | |
1087 | do_cleanups (my_cleanup); | |
9cce227f | 1088 | |
15d123c9 | 1089 | add_separate_debug_objfile (new_objfile, objfile); |
9cce227f | 1090 | } |
7904e09f | 1091 | |
eb4556d7 JB |
1092 | /* Process the symbol file ABFD, as either the main file or as a |
1093 | dynamically loaded file. | |
1094 | ||
1095 | See symbol_file_add_with_addrs_or_offsets's comments for | |
1096 | details. */ | |
1097 | struct objfile * | |
7eedccfa | 1098 | symbol_file_add_from_bfd (bfd *abfd, int add_flags, |
eb4556d7 | 1099 | struct section_addr_info *addrs, |
7eedccfa | 1100 | int flags) |
eb4556d7 | 1101 | { |
7eedccfa PP |
1102 | return symbol_file_add_with_addrs_or_offsets (abfd, add_flags, addrs, 0, 0, |
1103 | flags); | |
eb4556d7 JB |
1104 | } |
1105 | ||
1106 | ||
7904e09f JB |
1107 | /* Process a symbol file, as either the main file or as a dynamically |
1108 | loaded file. See symbol_file_add_with_addrs_or_offsets's comments | |
1109 | for details. */ | |
1110 | struct objfile * | |
7eedccfa PP |
1111 | symbol_file_add (char *name, int add_flags, struct section_addr_info *addrs, |
1112 | int flags) | |
7904e09f | 1113 | { |
7eedccfa PP |
1114 | return symbol_file_add_from_bfd (symfile_bfd_open (name), add_flags, addrs, |
1115 | flags); | |
7904e09f JB |
1116 | } |
1117 | ||
1118 | ||
d7db6da9 FN |
1119 | /* Call symbol_file_add() with default values and update whatever is |
1120 | affected by the loading of a new main(). | |
1121 | Used when the file is supplied in the gdb command line | |
1122 | and by some targets with special loading requirements. | |
1123 | The auxiliary function, symbol_file_add_main_1(), has the flags | |
1124 | argument for the switches that can only be specified in the symbol_file | |
1125 | command itself. */ | |
5417f6dc | 1126 | |
1adeb98a FN |
1127 | void |
1128 | symbol_file_add_main (char *args, int from_tty) | |
1129 | { | |
d7db6da9 FN |
1130 | symbol_file_add_main_1 (args, from_tty, 0); |
1131 | } | |
1132 | ||
1133 | static void | |
1134 | symbol_file_add_main_1 (char *args, int from_tty, int flags) | |
1135 | { | |
7eedccfa PP |
1136 | const int add_flags = SYMFILE_MAINLINE | (from_tty ? SYMFILE_VERBOSE : 0); |
1137 | symbol_file_add (args, add_flags, NULL, flags); | |
d7db6da9 | 1138 | |
d7db6da9 FN |
1139 | /* Getting new symbols may change our opinion about |
1140 | what is frameless. */ | |
1141 | reinit_frame_cache (); | |
1142 | ||
1143 | set_initial_language (); | |
1adeb98a FN |
1144 | } |
1145 | ||
1146 | void | |
1147 | symbol_file_clear (int from_tty) | |
1148 | { | |
1149 | if ((have_full_symbols () || have_partial_symbols ()) | |
1150 | && from_tty | |
0430b0d6 AS |
1151 | && (symfile_objfile |
1152 | ? !query (_("Discard symbol table from `%s'? "), | |
1153 | symfile_objfile->name) | |
1154 | : !query (_("Discard symbol table? ")))) | |
8a3fe4f8 | 1155 | error (_("Not confirmed.")); |
1adeb98a | 1156 | |
d10c338d | 1157 | free_all_objfiles (); |
1adeb98a | 1158 | |
d10c338d DE |
1159 | /* solib descriptors may have handles to objfiles. Since their |
1160 | storage has just been released, we'd better wipe the solib | |
1161 | descriptors as well. */ | |
1162 | no_shared_libraries (NULL, from_tty); | |
1163 | ||
adb7f338 | 1164 | gdb_assert (symfile_objfile == NULL); |
d10c338d DE |
1165 | if (from_tty) |
1166 | printf_unfiltered (_("No symbol file now.\n")); | |
1adeb98a FN |
1167 | } |
1168 | ||
5b5d99cf JB |
1169 | static char * |
1170 | get_debug_link_info (struct objfile *objfile, unsigned long *crc32_out) | |
1171 | { | |
1172 | asection *sect; | |
1173 | bfd_size_type debuglink_size; | |
1174 | unsigned long crc32; | |
1175 | char *contents; | |
1176 | int crc_offset; | |
1177 | unsigned char *p; | |
5417f6dc | 1178 | |
5b5d99cf JB |
1179 | sect = bfd_get_section_by_name (objfile->obfd, ".gnu_debuglink"); |
1180 | ||
1181 | if (sect == NULL) | |
1182 | return NULL; | |
1183 | ||
1184 | debuglink_size = bfd_section_size (objfile->obfd, sect); | |
5417f6dc | 1185 | |
5b5d99cf JB |
1186 | contents = xmalloc (debuglink_size); |
1187 | bfd_get_section_contents (objfile->obfd, sect, contents, | |
1188 | (file_ptr)0, (bfd_size_type)debuglink_size); | |
1189 | ||
1190 | /* Crc value is stored after the filename, aligned up to 4 bytes. */ | |
1191 | crc_offset = strlen (contents) + 1; | |
1192 | crc_offset = (crc_offset + 3) & ~3; | |
1193 | ||
1194 | crc32 = bfd_get_32 (objfile->obfd, (bfd_byte *) (contents + crc_offset)); | |
5417f6dc | 1195 | |
5b5d99cf JB |
1196 | *crc32_out = crc32; |
1197 | return contents; | |
1198 | } | |
1199 | ||
1200 | static int | |
287ccc17 | 1201 | separate_debug_file_exists (const char *name, unsigned long crc, |
32a0e547 | 1202 | struct objfile *parent_objfile) |
5b5d99cf JB |
1203 | { |
1204 | unsigned long file_crc = 0; | |
f1838a98 | 1205 | bfd *abfd; |
777ea8f1 | 1206 | gdb_byte buffer[8*1024]; |
5b5d99cf | 1207 | int count; |
32a0e547 JK |
1208 | struct stat parent_stat, abfd_stat; |
1209 | ||
1210 | /* Find a separate debug info file as if symbols would be present in | |
1211 | PARENT_OBJFILE itself this function would not be called. .gnu_debuglink | |
1212 | section can contain just the basename of PARENT_OBJFILE without any | |
1213 | ".debug" suffix as "/usr/lib/debug/path/to/file" is a separate tree where | |
1214 | the separate debug infos with the same basename can exist. */ | |
1215 | ||
1216 | if (strcmp (name, parent_objfile->name) == 0) | |
1217 | return 0; | |
5b5d99cf | 1218 | |
874f5765 | 1219 | abfd = bfd_open_maybe_remote (name); |
f1838a98 UW |
1220 | |
1221 | if (!abfd) | |
5b5d99cf JB |
1222 | return 0; |
1223 | ||
32a0e547 JK |
1224 | /* Verify symlinks were not the cause of strcmp name difference above. |
1225 | ||
1226 | Some operating systems, e.g. Windows, do not provide a meaningful | |
1227 | st_ino; they always set it to zero. (Windows does provide a | |
1228 | meaningful st_dev.) Do not indicate a duplicate library in that | |
1229 | case. While there is no guarantee that a system that provides | |
1230 | meaningful inode numbers will never set st_ino to zero, this is | |
1231 | merely an optimization, so we do not need to worry about false | |
1232 | negatives. */ | |
1233 | ||
1234 | if (bfd_stat (abfd, &abfd_stat) == 0 | |
1235 | && bfd_stat (parent_objfile->obfd, &parent_stat) == 0 | |
1236 | && abfd_stat.st_dev == parent_stat.st_dev | |
1237 | && abfd_stat.st_ino == parent_stat.st_ino | |
1238 | && abfd_stat.st_ino != 0) | |
1239 | { | |
1240 | bfd_close (abfd); | |
1241 | return 0; | |
1242 | } | |
1243 | ||
f1838a98 | 1244 | while ((count = bfd_bread (buffer, sizeof (buffer), abfd)) > 0) |
5b5d99cf JB |
1245 | file_crc = gnu_debuglink_crc32 (file_crc, buffer, count); |
1246 | ||
f1838a98 | 1247 | bfd_close (abfd); |
5b5d99cf | 1248 | |
287ccc17 JK |
1249 | if (crc != file_crc) |
1250 | { | |
1251 | warning (_("the debug information found in \"%s\"" | |
1252 | " does not match \"%s\" (CRC mismatch).\n"), | |
32a0e547 | 1253 | name, parent_objfile->name); |
287ccc17 JK |
1254 | return 0; |
1255 | } | |
1256 | ||
1257 | return 1; | |
5b5d99cf JB |
1258 | } |
1259 | ||
aa28a74e | 1260 | char *debug_file_directory = NULL; |
920d2a44 AC |
1261 | static void |
1262 | show_debug_file_directory (struct ui_file *file, int from_tty, | |
1263 | struct cmd_list_element *c, const char *value) | |
1264 | { | |
1265 | fprintf_filtered (file, _("\ | |
1266 | The directory where separate debug symbols are searched for is \"%s\".\n"), | |
1267 | value); | |
1268 | } | |
5b5d99cf JB |
1269 | |
1270 | #if ! defined (DEBUG_SUBDIRECTORY) | |
1271 | #define DEBUG_SUBDIRECTORY ".debug" | |
1272 | #endif | |
1273 | ||
9cce227f TG |
1274 | char * |
1275 | find_separate_debug_file_by_debuglink (struct objfile *objfile) | |
1276 | { | |
1277 | asection *sect; | |
1278 | char *basename, *name_copy, *debugdir; | |
1279 | char *dir = NULL; | |
1280 | char *debugfile = NULL; | |
1281 | char *canon_name = NULL; | |
1282 | bfd_size_type debuglink_size; | |
1283 | unsigned long crc32; | |
1284 | int i; | |
5b5d99cf JB |
1285 | |
1286 | basename = get_debug_link_info (objfile, &crc32); | |
1287 | ||
1288 | if (basename == NULL) | |
287ccc17 JK |
1289 | /* There's no separate debug info, hence there's no way we could |
1290 | load it => no warning. */ | |
25522fae | 1291 | goto cleanup_return_debugfile; |
5417f6dc | 1292 | |
5b5d99cf JB |
1293 | dir = xstrdup (objfile->name); |
1294 | ||
fe36c4f4 JB |
1295 | /* Strip off the final filename part, leaving the directory name, |
1296 | followed by a slash. Objfile names should always be absolute and | |
1297 | tilde-expanded, so there should always be a slash in there | |
1298 | somewhere. */ | |
5b5d99cf JB |
1299 | for (i = strlen(dir) - 1; i >= 0; i--) |
1300 | { | |
1301 | if (IS_DIR_SEPARATOR (dir[i])) | |
1302 | break; | |
1303 | } | |
fe36c4f4 | 1304 | gdb_assert (i >= 0 && IS_DIR_SEPARATOR (dir[i])); |
5b5d99cf | 1305 | dir[i+1] = '\0'; |
5417f6dc | 1306 | |
1ffa32ee JK |
1307 | /* Set I to max (strlen (canon_name), strlen (dir)). */ |
1308 | canon_name = lrealpath (dir); | |
1309 | i = strlen (dir); | |
1310 | if (canon_name && strlen (canon_name) > i) | |
1311 | i = strlen (canon_name); | |
1312 | ||
25522fae JK |
1313 | debugfile = xmalloc (strlen (debug_file_directory) + 1 |
1314 | + i | |
1315 | + strlen (DEBUG_SUBDIRECTORY) | |
1316 | + strlen ("/") | |
1317 | + strlen (basename) | |
1318 | + 1); | |
5b5d99cf JB |
1319 | |
1320 | /* First try in the same directory as the original file. */ | |
1321 | strcpy (debugfile, dir); | |
1322 | strcat (debugfile, basename); | |
1323 | ||
32a0e547 | 1324 | if (separate_debug_file_exists (debugfile, crc32, objfile)) |
25522fae | 1325 | goto cleanup_return_debugfile; |
5417f6dc | 1326 | |
5b5d99cf JB |
1327 | /* Then try in the subdirectory named DEBUG_SUBDIRECTORY. */ |
1328 | strcpy (debugfile, dir); | |
1329 | strcat (debugfile, DEBUG_SUBDIRECTORY); | |
1330 | strcat (debugfile, "/"); | |
1331 | strcat (debugfile, basename); | |
1332 | ||
32a0e547 | 1333 | if (separate_debug_file_exists (debugfile, crc32, objfile)) |
25522fae | 1334 | goto cleanup_return_debugfile; |
5417f6dc | 1335 | |
24ddea62 JK |
1336 | /* Then try in the global debugfile directories. |
1337 | ||
1338 | Keep backward compatibility so that DEBUG_FILE_DIRECTORY being "" will | |
1339 | cause "/..." lookups. */ | |
5417f6dc | 1340 | |
24ddea62 JK |
1341 | debugdir = debug_file_directory; |
1342 | do | |
aa28a74e | 1343 | { |
24ddea62 JK |
1344 | char *debugdir_end; |
1345 | ||
1346 | while (*debugdir == DIRNAME_SEPARATOR) | |
1347 | debugdir++; | |
1348 | ||
1349 | debugdir_end = strchr (debugdir, DIRNAME_SEPARATOR); | |
1350 | if (debugdir_end == NULL) | |
1351 | debugdir_end = &debugdir[strlen (debugdir)]; | |
1352 | ||
1353 | memcpy (debugfile, debugdir, debugdir_end - debugdir); | |
1354 | debugfile[debugdir_end - debugdir] = 0; | |
aa28a74e | 1355 | strcat (debugfile, "/"); |
24ddea62 | 1356 | strcat (debugfile, dir); |
aa28a74e DJ |
1357 | strcat (debugfile, basename); |
1358 | ||
32a0e547 | 1359 | if (separate_debug_file_exists (debugfile, crc32, objfile)) |
25522fae | 1360 | goto cleanup_return_debugfile; |
24ddea62 JK |
1361 | |
1362 | /* If the file is in the sysroot, try using its base path in the | |
1363 | global debugfile directory. */ | |
1364 | if (canon_name | |
1365 | && strncmp (canon_name, gdb_sysroot, strlen (gdb_sysroot)) == 0 | |
1366 | && IS_DIR_SEPARATOR (canon_name[strlen (gdb_sysroot)])) | |
1367 | { | |
1368 | memcpy (debugfile, debugdir, debugdir_end - debugdir); | |
1369 | debugfile[debugdir_end - debugdir] = 0; | |
1370 | strcat (debugfile, canon_name + strlen (gdb_sysroot)); | |
1371 | strcat (debugfile, "/"); | |
1372 | strcat (debugfile, basename); | |
1373 | ||
32a0e547 | 1374 | if (separate_debug_file_exists (debugfile, crc32, objfile)) |
24ddea62 JK |
1375 | goto cleanup_return_debugfile; |
1376 | } | |
1377 | ||
1378 | debugdir = debugdir_end; | |
aa28a74e | 1379 | } |
24ddea62 | 1380 | while (*debugdir != 0); |
aa28a74e | 1381 | |
25522fae JK |
1382 | xfree (debugfile); |
1383 | debugfile = NULL; | |
aa28a74e | 1384 | |
25522fae JK |
1385 | cleanup_return_debugfile: |
1386 | xfree (canon_name); | |
5b5d99cf JB |
1387 | xfree (basename); |
1388 | xfree (dir); | |
25522fae | 1389 | return debugfile; |
5b5d99cf JB |
1390 | } |
1391 | ||
1392 | ||
c906108c SS |
1393 | /* This is the symbol-file command. Read the file, analyze its |
1394 | symbols, and add a struct symtab to a symtab list. The syntax of | |
cb2f3a29 MK |
1395 | the command is rather bizarre: |
1396 | ||
1397 | 1. The function buildargv implements various quoting conventions | |
1398 | which are undocumented and have little or nothing in common with | |
1399 | the way things are quoted (or not quoted) elsewhere in GDB. | |
1400 | ||
1401 | 2. Options are used, which are not generally used in GDB (perhaps | |
1402 | "set mapped on", "set readnow on" would be better) | |
1403 | ||
1404 | 3. The order of options matters, which is contrary to GNU | |
c906108c SS |
1405 | conventions (because it is confusing and inconvenient). */ |
1406 | ||
1407 | void | |
fba45db2 | 1408 | symbol_file_command (char *args, int from_tty) |
c906108c | 1409 | { |
c906108c SS |
1410 | dont_repeat (); |
1411 | ||
1412 | if (args == NULL) | |
1413 | { | |
1adeb98a | 1414 | symbol_file_clear (from_tty); |
c906108c SS |
1415 | } |
1416 | else | |
1417 | { | |
d1a41061 | 1418 | char **argv = gdb_buildargv (args); |
cb2f3a29 MK |
1419 | int flags = OBJF_USERLOADED; |
1420 | struct cleanup *cleanups; | |
1421 | char *name = NULL; | |
1422 | ||
7a292a7a | 1423 | cleanups = make_cleanup_freeargv (argv); |
c906108c SS |
1424 | while (*argv != NULL) |
1425 | { | |
78a4a9b9 AC |
1426 | if (strcmp (*argv, "-readnow") == 0) |
1427 | flags |= OBJF_READNOW; | |
1428 | else if (**argv == '-') | |
8a3fe4f8 | 1429 | error (_("unknown option `%s'"), *argv); |
78a4a9b9 AC |
1430 | else |
1431 | { | |
cb2f3a29 | 1432 | symbol_file_add_main_1 (*argv, from_tty, flags); |
78a4a9b9 | 1433 | name = *argv; |
78a4a9b9 | 1434 | } |
cb2f3a29 | 1435 | |
c906108c SS |
1436 | argv++; |
1437 | } | |
1438 | ||
1439 | if (name == NULL) | |
cb2f3a29 MK |
1440 | error (_("no symbol file name was specified")); |
1441 | ||
c906108c SS |
1442 | do_cleanups (cleanups); |
1443 | } | |
1444 | } | |
1445 | ||
1446 | /* Set the initial language. | |
1447 | ||
cb2f3a29 MK |
1448 | FIXME: A better solution would be to record the language in the |
1449 | psymtab when reading partial symbols, and then use it (if known) to | |
1450 | set the language. This would be a win for formats that encode the | |
1451 | language in an easily discoverable place, such as DWARF. For | |
1452 | stabs, we can jump through hoops looking for specially named | |
1453 | symbols or try to intuit the language from the specific type of | |
1454 | stabs we find, but we can't do that until later when we read in | |
1455 | full symbols. */ | |
c906108c | 1456 | |
8b60591b | 1457 | void |
fba45db2 | 1458 | set_initial_language (void) |
c906108c SS |
1459 | { |
1460 | struct partial_symtab *pst; | |
c5aa993b | 1461 | enum language lang = language_unknown; |
c906108c SS |
1462 | |
1463 | pst = find_main_psymtab (); | |
1464 | if (pst != NULL) | |
1465 | { | |
c5aa993b | 1466 | if (pst->filename != NULL) |
cb2f3a29 MK |
1467 | lang = deduce_language_from_filename (pst->filename); |
1468 | ||
c906108c SS |
1469 | if (lang == language_unknown) |
1470 | { | |
c5aa993b JM |
1471 | /* Make C the default language */ |
1472 | lang = language_c; | |
c906108c | 1473 | } |
cb2f3a29 | 1474 | |
c906108c | 1475 | set_language (lang); |
cb2f3a29 | 1476 | expected_language = current_language; /* Don't warn the user. */ |
c906108c SS |
1477 | } |
1478 | } | |
1479 | ||
874f5765 TG |
1480 | /* If NAME is a remote name open the file using remote protocol, otherwise |
1481 | open it normally. */ | |
1482 | ||
1483 | bfd * | |
1484 | bfd_open_maybe_remote (const char *name) | |
1485 | { | |
1486 | if (remote_filename_p (name)) | |
1487 | return remote_bfd_open (name, gnutarget); | |
1488 | else | |
1489 | return bfd_openr (name, gnutarget); | |
1490 | } | |
1491 | ||
1492 | ||
cb2f3a29 MK |
1493 | /* Open the file specified by NAME and hand it off to BFD for |
1494 | preliminary analysis. Return a newly initialized bfd *, which | |
1495 | includes a newly malloc'd` copy of NAME (tilde-expanded and made | |
1496 | absolute). In case of trouble, error() is called. */ | |
c906108c SS |
1497 | |
1498 | bfd * | |
fba45db2 | 1499 | symfile_bfd_open (char *name) |
c906108c SS |
1500 | { |
1501 | bfd *sym_bfd; | |
1502 | int desc; | |
1503 | char *absolute_name; | |
1504 | ||
f1838a98 UW |
1505 | if (remote_filename_p (name)) |
1506 | { | |
1507 | name = xstrdup (name); | |
1508 | sym_bfd = remote_bfd_open (name, gnutarget); | |
1509 | if (!sym_bfd) | |
1510 | { | |
1511 | make_cleanup (xfree, name); | |
1512 | error (_("`%s': can't open to read symbols: %s."), name, | |
1513 | bfd_errmsg (bfd_get_error ())); | |
1514 | } | |
1515 | ||
1516 | if (!bfd_check_format (sym_bfd, bfd_object)) | |
1517 | { | |
1518 | bfd_close (sym_bfd); | |
1519 | make_cleanup (xfree, name); | |
1520 | error (_("`%s': can't read symbols: %s."), name, | |
1521 | bfd_errmsg (bfd_get_error ())); | |
1522 | } | |
1523 | ||
1524 | return sym_bfd; | |
1525 | } | |
1526 | ||
cb2f3a29 | 1527 | name = tilde_expand (name); /* Returns 1st new malloc'd copy. */ |
c906108c SS |
1528 | |
1529 | /* Look down path for it, allocate 2nd new malloc'd copy. */ | |
cb2f3a29 | 1530 | desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, name, |
fbdebf46 | 1531 | O_RDONLY | O_BINARY, &absolute_name); |
608506ed | 1532 | #if defined(__GO32__) || defined(_WIN32) || defined (__CYGWIN__) |
c906108c SS |
1533 | if (desc < 0) |
1534 | { | |
1535 | char *exename = alloca (strlen (name) + 5); | |
1536 | strcat (strcpy (exename, name), ".exe"); | |
014d698b | 1537 | desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename, |
fbdebf46 | 1538 | O_RDONLY | O_BINARY, &absolute_name); |
c906108c SS |
1539 | } |
1540 | #endif | |
1541 | if (desc < 0) | |
1542 | { | |
b8c9b27d | 1543 | make_cleanup (xfree, name); |
c906108c SS |
1544 | perror_with_name (name); |
1545 | } | |
cb2f3a29 MK |
1546 | |
1547 | /* Free 1st new malloc'd copy, but keep the 2nd malloc'd copy in | |
1548 | bfd. It'll be freed in free_objfile(). */ | |
1549 | xfree (name); | |
1550 | name = absolute_name; | |
c906108c | 1551 | |
9f76c2cd | 1552 | sym_bfd = bfd_fopen (name, gnutarget, FOPEN_RB, desc); |
c906108c SS |
1553 | if (!sym_bfd) |
1554 | { | |
1555 | close (desc); | |
b8c9b27d | 1556 | make_cleanup (xfree, name); |
f1838a98 | 1557 | error (_("`%s': can't open to read symbols: %s."), name, |
c906108c SS |
1558 | bfd_errmsg (bfd_get_error ())); |
1559 | } | |
549c1eea | 1560 | bfd_set_cacheable (sym_bfd, 1); |
c906108c SS |
1561 | |
1562 | if (!bfd_check_format (sym_bfd, bfd_object)) | |
1563 | { | |
cb2f3a29 MK |
1564 | /* FIXME: should be checking for errors from bfd_close (for one |
1565 | thing, on error it does not free all the storage associated | |
1566 | with the bfd). */ | |
1567 | bfd_close (sym_bfd); /* This also closes desc. */ | |
b8c9b27d | 1568 | make_cleanup (xfree, name); |
f1838a98 | 1569 | error (_("`%s': can't read symbols: %s."), name, |
c906108c SS |
1570 | bfd_errmsg (bfd_get_error ())); |
1571 | } | |
cb2f3a29 | 1572 | |
4f6f9936 JK |
1573 | /* bfd_usrdata exists for applications and libbfd must not touch it. */ |
1574 | gdb_assert (bfd_usrdata (sym_bfd) == NULL); | |
1575 | ||
cb2f3a29 | 1576 | return sym_bfd; |
c906108c SS |
1577 | } |
1578 | ||
cb2f3a29 MK |
1579 | /* Return the section index for SECTION_NAME on OBJFILE. Return -1 if |
1580 | the section was not found. */ | |
1581 | ||
0e931cf0 JB |
1582 | int |
1583 | get_section_index (struct objfile *objfile, char *section_name) | |
1584 | { | |
1585 | asection *sect = bfd_get_section_by_name (objfile->obfd, section_name); | |
cb2f3a29 | 1586 | |
0e931cf0 JB |
1587 | if (sect) |
1588 | return sect->index; | |
1589 | else | |
1590 | return -1; | |
1591 | } | |
1592 | ||
cb2f3a29 MK |
1593 | /* Link SF into the global symtab_fns list. Called on startup by the |
1594 | _initialize routine in each object file format reader, to register | |
1595 | information about each format the the reader is prepared to | |
1596 | handle. */ | |
c906108c SS |
1597 | |
1598 | void | |
fba45db2 | 1599 | add_symtab_fns (struct sym_fns *sf) |
c906108c SS |
1600 | { |
1601 | sf->next = symtab_fns; | |
1602 | symtab_fns = sf; | |
1603 | } | |
1604 | ||
cb2f3a29 MK |
1605 | /* Initialize OBJFILE to read symbols from its associated BFD. It |
1606 | either returns or calls error(). The result is an initialized | |
1607 | struct sym_fns in the objfile structure, that contains cached | |
1608 | information about the symbol file. */ | |
c906108c | 1609 | |
31d99776 DJ |
1610 | static struct sym_fns * |
1611 | find_sym_fns (bfd *abfd) | |
c906108c SS |
1612 | { |
1613 | struct sym_fns *sf; | |
31d99776 | 1614 | enum bfd_flavour our_flavour = bfd_get_flavour (abfd); |
c906108c | 1615 | |
75245b24 MS |
1616 | if (our_flavour == bfd_target_srec_flavour |
1617 | || our_flavour == bfd_target_ihex_flavour | |
1618 | || our_flavour == bfd_target_tekhex_flavour) | |
31d99776 | 1619 | return NULL; /* No symbols. */ |
75245b24 | 1620 | |
c5aa993b | 1621 | for (sf = symtab_fns; sf != NULL; sf = sf->next) |
31d99776 DJ |
1622 | if (our_flavour == sf->sym_flavour) |
1623 | return sf; | |
cb2f3a29 | 1624 | |
8a3fe4f8 | 1625 | error (_("I'm sorry, Dave, I can't do that. Symbol format `%s' unknown."), |
31d99776 | 1626 | bfd_get_target (abfd)); |
c906108c SS |
1627 | } |
1628 | \f | |
cb2f3a29 | 1629 | |
c906108c SS |
1630 | /* This function runs the load command of our current target. */ |
1631 | ||
1632 | static void | |
fba45db2 | 1633 | load_command (char *arg, int from_tty) |
c906108c | 1634 | { |
4487aabf PA |
1635 | /* The user might be reloading because the binary has changed. Take |
1636 | this opportunity to check. */ | |
1637 | reopen_exec_file (); | |
1638 | reread_symbols (); | |
1639 | ||
c906108c | 1640 | if (arg == NULL) |
1986bccd AS |
1641 | { |
1642 | char *parg; | |
1643 | int count = 0; | |
1644 | ||
1645 | parg = arg = get_exec_file (1); | |
1646 | ||
1647 | /* Count how many \ " ' tab space there are in the name. */ | |
1648 | while ((parg = strpbrk (parg, "\\\"'\t "))) | |
1649 | { | |
1650 | parg++; | |
1651 | count++; | |
1652 | } | |
1653 | ||
1654 | if (count) | |
1655 | { | |
1656 | /* We need to quote this string so buildargv can pull it apart. */ | |
1657 | char *temp = xmalloc (strlen (arg) + count + 1 ); | |
1658 | char *ptemp = temp; | |
1659 | char *prev; | |
1660 | ||
1661 | make_cleanup (xfree, temp); | |
1662 | ||
1663 | prev = parg = arg; | |
1664 | while ((parg = strpbrk (parg, "\\\"'\t "))) | |
1665 | { | |
1666 | strncpy (ptemp, prev, parg - prev); | |
1667 | ptemp += parg - prev; | |
1668 | prev = parg++; | |
1669 | *ptemp++ = '\\'; | |
1670 | } | |
1671 | strcpy (ptemp, prev); | |
1672 | ||
1673 | arg = temp; | |
1674 | } | |
1675 | } | |
1676 | ||
c906108c | 1677 | target_load (arg, from_tty); |
2889e661 JB |
1678 | |
1679 | /* After re-loading the executable, we don't really know which | |
1680 | overlays are mapped any more. */ | |
1681 | overlay_cache_invalid = 1; | |
c906108c SS |
1682 | } |
1683 | ||
1684 | /* This version of "load" should be usable for any target. Currently | |
1685 | it is just used for remote targets, not inftarg.c or core files, | |
1686 | on the theory that only in that case is it useful. | |
1687 | ||
1688 | Avoiding xmodem and the like seems like a win (a) because we don't have | |
1689 | to worry about finding it, and (b) On VMS, fork() is very slow and so | |
1690 | we don't want to run a subprocess. On the other hand, I'm not sure how | |
1691 | performance compares. */ | |
917317f4 | 1692 | |
917317f4 JM |
1693 | static int validate_download = 0; |
1694 | ||
e4f9b4d5 MS |
1695 | /* Callback service function for generic_load (bfd_map_over_sections). */ |
1696 | ||
1697 | static void | |
1698 | add_section_size_callback (bfd *abfd, asection *asec, void *data) | |
1699 | { | |
1700 | bfd_size_type *sum = data; | |
1701 | ||
2c500098 | 1702 | *sum += bfd_get_section_size (asec); |
e4f9b4d5 MS |
1703 | } |
1704 | ||
1705 | /* Opaque data for load_section_callback. */ | |
1706 | struct load_section_data { | |
1707 | unsigned long load_offset; | |
a76d924d DJ |
1708 | struct load_progress_data *progress_data; |
1709 | VEC(memory_write_request_s) *requests; | |
1710 | }; | |
1711 | ||
1712 | /* Opaque data for load_progress. */ | |
1713 | struct load_progress_data { | |
1714 | /* Cumulative data. */ | |
e4f9b4d5 MS |
1715 | unsigned long write_count; |
1716 | unsigned long data_count; | |
1717 | bfd_size_type total_size; | |
a76d924d DJ |
1718 | }; |
1719 | ||
1720 | /* Opaque data for load_progress for a single section. */ | |
1721 | struct load_progress_section_data { | |
1722 | struct load_progress_data *cumulative; | |
cf7a04e8 | 1723 | |
a76d924d | 1724 | /* Per-section data. */ |
cf7a04e8 DJ |
1725 | const char *section_name; |
1726 | ULONGEST section_sent; | |
1727 | ULONGEST section_size; | |
1728 | CORE_ADDR lma; | |
1729 | gdb_byte *buffer; | |
e4f9b4d5 MS |
1730 | }; |
1731 | ||
a76d924d | 1732 | /* Target write callback routine for progress reporting. */ |
cf7a04e8 DJ |
1733 | |
1734 | static void | |
1735 | load_progress (ULONGEST bytes, void *untyped_arg) | |
1736 | { | |
a76d924d DJ |
1737 | struct load_progress_section_data *args = untyped_arg; |
1738 | struct load_progress_data *totals; | |
1739 | ||
1740 | if (args == NULL) | |
1741 | /* Writing padding data. No easy way to get at the cumulative | |
1742 | stats, so just ignore this. */ | |
1743 | return; | |
1744 | ||
1745 | totals = args->cumulative; | |
1746 | ||
1747 | if (bytes == 0 && args->section_sent == 0) | |
1748 | { | |
1749 | /* The write is just starting. Let the user know we've started | |
1750 | this section. */ | |
5af949e3 UW |
1751 | ui_out_message (uiout, 0, "Loading section %s, size %s lma %s\n", |
1752 | args->section_name, hex_string (args->section_size), | |
1753 | paddress (target_gdbarch, args->lma)); | |
a76d924d DJ |
1754 | return; |
1755 | } | |
cf7a04e8 DJ |
1756 | |
1757 | if (validate_download) | |
1758 | { | |
1759 | /* Broken memories and broken monitors manifest themselves here | |
1760 | when bring new computers to life. This doubles already slow | |
1761 | downloads. */ | |
1762 | /* NOTE: cagney/1999-10-18: A more efficient implementation | |
1763 | might add a verify_memory() method to the target vector and | |
1764 | then use that. remote.c could implement that method using | |
1765 | the ``qCRC'' packet. */ | |
1766 | gdb_byte *check = xmalloc (bytes); | |
1767 | struct cleanup *verify_cleanups = make_cleanup (xfree, check); | |
1768 | ||
1769 | if (target_read_memory (args->lma, check, bytes) != 0) | |
5af949e3 UW |
1770 | error (_("Download verify read failed at %s"), |
1771 | paddress (target_gdbarch, args->lma)); | |
cf7a04e8 | 1772 | if (memcmp (args->buffer, check, bytes) != 0) |
5af949e3 UW |
1773 | error (_("Download verify compare failed at %s"), |
1774 | paddress (target_gdbarch, args->lma)); | |
cf7a04e8 DJ |
1775 | do_cleanups (verify_cleanups); |
1776 | } | |
a76d924d | 1777 | totals->data_count += bytes; |
cf7a04e8 DJ |
1778 | args->lma += bytes; |
1779 | args->buffer += bytes; | |
a76d924d | 1780 | totals->write_count += 1; |
cf7a04e8 DJ |
1781 | args->section_sent += bytes; |
1782 | if (quit_flag | |
1783 | || (deprecated_ui_load_progress_hook != NULL | |
1784 | && deprecated_ui_load_progress_hook (args->section_name, | |
1785 | args->section_sent))) | |
1786 | error (_("Canceled the download")); | |
1787 | ||
1788 | if (deprecated_show_load_progress != NULL) | |
1789 | deprecated_show_load_progress (args->section_name, | |
1790 | args->section_sent, | |
1791 | args->section_size, | |
a76d924d DJ |
1792 | totals->data_count, |
1793 | totals->total_size); | |
cf7a04e8 DJ |
1794 | } |
1795 | ||
e4f9b4d5 MS |
1796 | /* Callback service function for generic_load (bfd_map_over_sections). */ |
1797 | ||
1798 | static void | |
1799 | load_section_callback (bfd *abfd, asection *asec, void *data) | |
1800 | { | |
a76d924d | 1801 | struct memory_write_request *new_request; |
e4f9b4d5 | 1802 | struct load_section_data *args = data; |
a76d924d | 1803 | struct load_progress_section_data *section_data; |
cf7a04e8 DJ |
1804 | bfd_size_type size = bfd_get_section_size (asec); |
1805 | gdb_byte *buffer; | |
cf7a04e8 | 1806 | const char *sect_name = bfd_get_section_name (abfd, asec); |
e4f9b4d5 | 1807 | |
cf7a04e8 DJ |
1808 | if ((bfd_get_section_flags (abfd, asec) & SEC_LOAD) == 0) |
1809 | return; | |
e4f9b4d5 | 1810 | |
cf7a04e8 DJ |
1811 | if (size == 0) |
1812 | return; | |
e4f9b4d5 | 1813 | |
a76d924d DJ |
1814 | new_request = VEC_safe_push (memory_write_request_s, |
1815 | args->requests, NULL); | |
1816 | memset (new_request, 0, sizeof (struct memory_write_request)); | |
1817 | section_data = xcalloc (1, sizeof (struct load_progress_section_data)); | |
1818 | new_request->begin = bfd_section_lma (abfd, asec) + args->load_offset; | |
1819 | new_request->end = new_request->begin + size; /* FIXME Should size be in instead? */ | |
1820 | new_request->data = xmalloc (size); | |
1821 | new_request->baton = section_data; | |
cf7a04e8 | 1822 | |
a76d924d | 1823 | buffer = new_request->data; |
cf7a04e8 | 1824 | |
a76d924d DJ |
1825 | section_data->cumulative = args->progress_data; |
1826 | section_data->section_name = sect_name; | |
1827 | section_data->section_size = size; | |
1828 | section_data->lma = new_request->begin; | |
1829 | section_data->buffer = buffer; | |
cf7a04e8 DJ |
1830 | |
1831 | bfd_get_section_contents (abfd, asec, buffer, 0, size); | |
a76d924d DJ |
1832 | } |
1833 | ||
1834 | /* Clean up an entire memory request vector, including load | |
1835 | data and progress records. */ | |
cf7a04e8 | 1836 | |
a76d924d DJ |
1837 | static void |
1838 | clear_memory_write_data (void *arg) | |
1839 | { | |
1840 | VEC(memory_write_request_s) **vec_p = arg; | |
1841 | VEC(memory_write_request_s) *vec = *vec_p; | |
1842 | int i; | |
1843 | struct memory_write_request *mr; | |
cf7a04e8 | 1844 | |
a76d924d DJ |
1845 | for (i = 0; VEC_iterate (memory_write_request_s, vec, i, mr); ++i) |
1846 | { | |
1847 | xfree (mr->data); | |
1848 | xfree (mr->baton); | |
1849 | } | |
1850 | VEC_free (memory_write_request_s, vec); | |
e4f9b4d5 MS |
1851 | } |
1852 | ||
c906108c | 1853 | void |
917317f4 | 1854 | generic_load (char *args, int from_tty) |
c906108c | 1855 | { |
c906108c | 1856 | bfd *loadfile_bfd; |
2b71414d | 1857 | struct timeval start_time, end_time; |
917317f4 | 1858 | char *filename; |
1986bccd | 1859 | struct cleanup *old_cleanups = make_cleanup (null_cleanup, 0); |
e4f9b4d5 | 1860 | struct load_section_data cbdata; |
a76d924d DJ |
1861 | struct load_progress_data total_progress; |
1862 | ||
e4f9b4d5 | 1863 | CORE_ADDR entry; |
1986bccd | 1864 | char **argv; |
e4f9b4d5 | 1865 | |
a76d924d DJ |
1866 | memset (&cbdata, 0, sizeof (cbdata)); |
1867 | memset (&total_progress, 0, sizeof (total_progress)); | |
1868 | cbdata.progress_data = &total_progress; | |
1869 | ||
1870 | make_cleanup (clear_memory_write_data, &cbdata.requests); | |
917317f4 | 1871 | |
d1a41061 PP |
1872 | if (args == NULL) |
1873 | error_no_arg (_("file to load")); | |
1986bccd | 1874 | |
d1a41061 | 1875 | argv = gdb_buildargv (args); |
1986bccd AS |
1876 | make_cleanup_freeargv (argv); |
1877 | ||
1878 | filename = tilde_expand (argv[0]); | |
1879 | make_cleanup (xfree, filename); | |
1880 | ||
1881 | if (argv[1] != NULL) | |
917317f4 JM |
1882 | { |
1883 | char *endptr; | |
ba5f2f8a | 1884 | |
1986bccd AS |
1885 | cbdata.load_offset = strtoul (argv[1], &endptr, 0); |
1886 | ||
1887 | /* If the last word was not a valid number then | |
1888 | treat it as a file name with spaces in. */ | |
1889 | if (argv[1] == endptr) | |
1890 | error (_("Invalid download offset:%s."), argv[1]); | |
1891 | ||
1892 | if (argv[2] != NULL) | |
1893 | error (_("Too many parameters.")); | |
917317f4 | 1894 | } |
c906108c | 1895 | |
917317f4 | 1896 | /* Open the file for loading. */ |
c906108c SS |
1897 | loadfile_bfd = bfd_openr (filename, gnutarget); |
1898 | if (loadfile_bfd == NULL) | |
1899 | { | |
1900 | perror_with_name (filename); | |
1901 | return; | |
1902 | } | |
917317f4 | 1903 | |
c906108c SS |
1904 | /* FIXME: should be checking for errors from bfd_close (for one thing, |
1905 | on error it does not free all the storage associated with the | |
1906 | bfd). */ | |
5c65bbb6 | 1907 | make_cleanup_bfd_close (loadfile_bfd); |
c906108c | 1908 | |
c5aa993b | 1909 | if (!bfd_check_format (loadfile_bfd, bfd_object)) |
c906108c | 1910 | { |
8a3fe4f8 | 1911 | error (_("\"%s\" is not an object file: %s"), filename, |
c906108c SS |
1912 | bfd_errmsg (bfd_get_error ())); |
1913 | } | |
c5aa993b | 1914 | |
5417f6dc | 1915 | bfd_map_over_sections (loadfile_bfd, add_section_size_callback, |
a76d924d DJ |
1916 | (void *) &total_progress.total_size); |
1917 | ||
1918 | bfd_map_over_sections (loadfile_bfd, load_section_callback, &cbdata); | |
c2d11a7d | 1919 | |
2b71414d | 1920 | gettimeofday (&start_time, NULL); |
c906108c | 1921 | |
a76d924d DJ |
1922 | if (target_write_memory_blocks (cbdata.requests, flash_discard, |
1923 | load_progress) != 0) | |
1924 | error (_("Load failed")); | |
c906108c | 1925 | |
2b71414d | 1926 | gettimeofday (&end_time, NULL); |
ba5f2f8a | 1927 | |
e4f9b4d5 | 1928 | entry = bfd_get_start_address (loadfile_bfd); |
e4f9b4d5 | 1929 | ui_out_text (uiout, "Start address "); |
5af949e3 | 1930 | ui_out_field_fmt (uiout, "address", "%s", paddress (target_gdbarch, entry)); |
e4f9b4d5 | 1931 | ui_out_text (uiout, ", load size "); |
a76d924d | 1932 | ui_out_field_fmt (uiout, "load-size", "%lu", total_progress.data_count); |
e4f9b4d5 | 1933 | ui_out_text (uiout, "\n"); |
e4f9b4d5 MS |
1934 | /* We were doing this in remote-mips.c, I suspect it is right |
1935 | for other targets too. */ | |
fb14de7b | 1936 | regcache_write_pc (get_current_regcache (), entry); |
c906108c | 1937 | |
7ca9f392 AC |
1938 | /* FIXME: are we supposed to call symbol_file_add or not? According |
1939 | to a comment from remote-mips.c (where a call to symbol_file_add | |
1940 | was commented out), making the call confuses GDB if more than one | |
1941 | file is loaded in. Some targets do (e.g., remote-vx.c) but | |
b2fa5097 | 1942 | others don't (or didn't - perhaps they have all been deleted). */ |
c906108c | 1943 | |
a76d924d DJ |
1944 | print_transfer_performance (gdb_stdout, total_progress.data_count, |
1945 | total_progress.write_count, | |
1946 | &start_time, &end_time); | |
c906108c SS |
1947 | |
1948 | do_cleanups (old_cleanups); | |
1949 | } | |
1950 | ||
1951 | /* Report how fast the transfer went. */ | |
1952 | ||
917317f4 JM |
1953 | /* DEPRECATED: cagney/1999-10-18: report_transfer_performance is being |
1954 | replaced by print_transfer_performance (with a very different | |
1955 | function signature). */ | |
1956 | ||
c906108c | 1957 | void |
fba45db2 KB |
1958 | report_transfer_performance (unsigned long data_count, time_t start_time, |
1959 | time_t end_time) | |
c906108c | 1960 | { |
2b71414d DJ |
1961 | struct timeval start, end; |
1962 | ||
1963 | start.tv_sec = start_time; | |
1964 | start.tv_usec = 0; | |
1965 | end.tv_sec = end_time; | |
1966 | end.tv_usec = 0; | |
1967 | ||
1968 | print_transfer_performance (gdb_stdout, data_count, 0, &start, &end); | |
917317f4 JM |
1969 | } |
1970 | ||
1971 | void | |
d9fcf2fb | 1972 | print_transfer_performance (struct ui_file *stream, |
917317f4 JM |
1973 | unsigned long data_count, |
1974 | unsigned long write_count, | |
2b71414d DJ |
1975 | const struct timeval *start_time, |
1976 | const struct timeval *end_time) | |
917317f4 | 1977 | { |
9f43d28c | 1978 | ULONGEST time_count; |
2b71414d DJ |
1979 | |
1980 | /* Compute the elapsed time in milliseconds, as a tradeoff between | |
1981 | accuracy and overflow. */ | |
1982 | time_count = (end_time->tv_sec - start_time->tv_sec) * 1000; | |
1983 | time_count += (end_time->tv_usec - start_time->tv_usec) / 1000; | |
1984 | ||
8b93c638 JM |
1985 | ui_out_text (uiout, "Transfer rate: "); |
1986 | if (time_count > 0) | |
1987 | { | |
9f43d28c DJ |
1988 | unsigned long rate = ((ULONGEST) data_count * 1000) / time_count; |
1989 | ||
1990 | if (ui_out_is_mi_like_p (uiout)) | |
1991 | { | |
1992 | ui_out_field_fmt (uiout, "transfer-rate", "%lu", rate * 8); | |
1993 | ui_out_text (uiout, " bits/sec"); | |
1994 | } | |
1995 | else if (rate < 1024) | |
1996 | { | |
1997 | ui_out_field_fmt (uiout, "transfer-rate", "%lu", rate); | |
1998 | ui_out_text (uiout, " bytes/sec"); | |
1999 | } | |
2000 | else | |
2001 | { | |
2002 | ui_out_field_fmt (uiout, "transfer-rate", "%lu", rate / 1024); | |
2003 | ui_out_text (uiout, " KB/sec"); | |
2004 | } | |
8b93c638 JM |
2005 | } |
2006 | else | |
2007 | { | |
ba5f2f8a | 2008 | ui_out_field_fmt (uiout, "transferred-bits", "%lu", (data_count * 8)); |
5417f6dc | 2009 | ui_out_text (uiout, " bits in <1 sec"); |
8b93c638 JM |
2010 | } |
2011 | if (write_count > 0) | |
2012 | { | |
2013 | ui_out_text (uiout, ", "); | |
ba5f2f8a | 2014 | ui_out_field_fmt (uiout, "write-rate", "%lu", data_count / write_count); |
8b93c638 JM |
2015 | ui_out_text (uiout, " bytes/write"); |
2016 | } | |
2017 | ui_out_text (uiout, ".\n"); | |
c906108c SS |
2018 | } |
2019 | ||
2020 | /* This function allows the addition of incrementally linked object files. | |
2021 | It does not modify any state in the target, only in the debugger. */ | |
db162d44 EZ |
2022 | /* Note: ezannoni 2000-04-13 This function/command used to have a |
2023 | special case syntax for the rombug target (Rombug is the boot | |
2024 | monitor for Microware's OS-9 / OS-9000, see remote-os9k.c). In the | |
2025 | rombug case, the user doesn't need to supply a text address, | |
2026 | instead a call to target_link() (in target.c) would supply the | |
2027 | value to use. We are now discontinuing this type of ad hoc syntax. */ | |
c906108c | 2028 | |
c906108c | 2029 | static void |
fba45db2 | 2030 | add_symbol_file_command (char *args, int from_tty) |
c906108c | 2031 | { |
5af949e3 | 2032 | struct gdbarch *gdbarch = get_current_arch (); |
db162d44 | 2033 | char *filename = NULL; |
2df3850c | 2034 | int flags = OBJF_USERLOADED; |
c906108c | 2035 | char *arg; |
2acceee2 | 2036 | int expecting_option = 0; |
db162d44 | 2037 | int section_index = 0; |
2acceee2 JM |
2038 | int argcnt = 0; |
2039 | int sec_num = 0; | |
2040 | int i; | |
db162d44 EZ |
2041 | int expecting_sec_name = 0; |
2042 | int expecting_sec_addr = 0; | |
5b96932b | 2043 | char **argv; |
db162d44 | 2044 | |
a39a16c4 | 2045 | struct sect_opt |
2acceee2 | 2046 | { |
2acceee2 JM |
2047 | char *name; |
2048 | char *value; | |
a39a16c4 | 2049 | }; |
db162d44 | 2050 | |
a39a16c4 MM |
2051 | struct section_addr_info *section_addrs; |
2052 | struct sect_opt *sect_opts = NULL; | |
2053 | size_t num_sect_opts = 0; | |
3017564a | 2054 | struct cleanup *my_cleanups = make_cleanup (null_cleanup, NULL); |
c5aa993b | 2055 | |
a39a16c4 | 2056 | num_sect_opts = 16; |
5417f6dc | 2057 | sect_opts = (struct sect_opt *) xmalloc (num_sect_opts |
a39a16c4 MM |
2058 | * sizeof (struct sect_opt)); |
2059 | ||
c906108c SS |
2060 | dont_repeat (); |
2061 | ||
2062 | if (args == NULL) | |
8a3fe4f8 | 2063 | error (_("add-symbol-file takes a file name and an address")); |
c906108c | 2064 | |
d1a41061 | 2065 | argv = gdb_buildargv (args); |
5b96932b | 2066 | make_cleanup_freeargv (argv); |
db162d44 | 2067 | |
5b96932b AS |
2068 | for (arg = argv[0], argcnt = 0; arg != NULL; arg = argv[++argcnt]) |
2069 | { | |
2070 | /* Process the argument. */ | |
db162d44 | 2071 | if (argcnt == 0) |
c906108c | 2072 | { |
db162d44 EZ |
2073 | /* The first argument is the file name. */ |
2074 | filename = tilde_expand (arg); | |
3017564a | 2075 | make_cleanup (xfree, filename); |
c906108c | 2076 | } |
db162d44 | 2077 | else |
7a78ae4e ND |
2078 | if (argcnt == 1) |
2079 | { | |
2080 | /* The second argument is always the text address at which | |
2081 | to load the program. */ | |
2082 | sect_opts[section_index].name = ".text"; | |
2083 | sect_opts[section_index].value = arg; | |
f414f22f | 2084 | if (++section_index >= num_sect_opts) |
a39a16c4 MM |
2085 | { |
2086 | num_sect_opts *= 2; | |
5417f6dc | 2087 | sect_opts = ((struct sect_opt *) |
a39a16c4 | 2088 | xrealloc (sect_opts, |
5417f6dc | 2089 | num_sect_opts |
a39a16c4 MM |
2090 | * sizeof (struct sect_opt))); |
2091 | } | |
7a78ae4e ND |
2092 | } |
2093 | else | |
2094 | { | |
2095 | /* It's an option (starting with '-') or it's an argument | |
2096 | to an option */ | |
2097 | ||
2098 | if (*arg == '-') | |
2099 | { | |
78a4a9b9 AC |
2100 | if (strcmp (arg, "-readnow") == 0) |
2101 | flags |= OBJF_READNOW; | |
2102 | else if (strcmp (arg, "-s") == 0) | |
2103 | { | |
2104 | expecting_sec_name = 1; | |
2105 | expecting_sec_addr = 1; | |
2106 | } | |
7a78ae4e ND |
2107 | } |
2108 | else | |
2109 | { | |
2110 | if (expecting_sec_name) | |
db162d44 | 2111 | { |
7a78ae4e ND |
2112 | sect_opts[section_index].name = arg; |
2113 | expecting_sec_name = 0; | |
db162d44 EZ |
2114 | } |
2115 | else | |
7a78ae4e ND |
2116 | if (expecting_sec_addr) |
2117 | { | |
2118 | sect_opts[section_index].value = arg; | |
2119 | expecting_sec_addr = 0; | |
f414f22f | 2120 | if (++section_index >= num_sect_opts) |
a39a16c4 MM |
2121 | { |
2122 | num_sect_opts *= 2; | |
5417f6dc | 2123 | sect_opts = ((struct sect_opt *) |
a39a16c4 | 2124 | xrealloc (sect_opts, |
5417f6dc | 2125 | num_sect_opts |
a39a16c4 MM |
2126 | * sizeof (struct sect_opt))); |
2127 | } | |
7a78ae4e ND |
2128 | } |
2129 | else | |
8a3fe4f8 | 2130 | error (_("USAGE: add-symbol-file <filename> <textaddress> [-mapped] [-readnow] [-s <secname> <addr>]*")); |
7a78ae4e ND |
2131 | } |
2132 | } | |
c906108c | 2133 | } |
c906108c | 2134 | |
927890d0 JB |
2135 | /* This command takes at least two arguments. The first one is a |
2136 | filename, and the second is the address where this file has been | |
2137 | loaded. Abort now if this address hasn't been provided by the | |
2138 | user. */ | |
2139 | if (section_index < 1) | |
2140 | error (_("The address where %s has been loaded is missing"), filename); | |
2141 | ||
db162d44 EZ |
2142 | /* Print the prompt for the query below. And save the arguments into |
2143 | a sect_addr_info structure to be passed around to other | |
2144 | functions. We have to split this up into separate print | |
bb599908 | 2145 | statements because hex_string returns a local static |
db162d44 | 2146 | string. */ |
5417f6dc | 2147 | |
a3f17187 | 2148 | printf_unfiltered (_("add symbol table from file \"%s\" at\n"), filename); |
a39a16c4 MM |
2149 | section_addrs = alloc_section_addr_info (section_index); |
2150 | make_cleanup (xfree, section_addrs); | |
db162d44 | 2151 | for (i = 0; i < section_index; i++) |
c906108c | 2152 | { |
db162d44 EZ |
2153 | CORE_ADDR addr; |
2154 | char *val = sect_opts[i].value; | |
2155 | char *sec = sect_opts[i].name; | |
5417f6dc | 2156 | |
ae822768 | 2157 | addr = parse_and_eval_address (val); |
db162d44 | 2158 | |
db162d44 EZ |
2159 | /* Here we store the section offsets in the order they were |
2160 | entered on the command line. */ | |
a39a16c4 MM |
2161 | section_addrs->other[sec_num].name = sec; |
2162 | section_addrs->other[sec_num].addr = addr; | |
5af949e3 UW |
2163 | printf_unfiltered ("\t%s_addr = %s\n", sec, |
2164 | paddress (gdbarch, addr)); | |
db162d44 EZ |
2165 | sec_num++; |
2166 | ||
5417f6dc | 2167 | /* The object's sections are initialized when a |
db162d44 | 2168 | call is made to build_objfile_section_table (objfile). |
5417f6dc | 2169 | This happens in reread_symbols. |
db162d44 EZ |
2170 | At this point, we don't know what file type this is, |
2171 | so we can't determine what section names are valid. */ | |
2acceee2 | 2172 | } |
db162d44 | 2173 | |
2acceee2 | 2174 | if (from_tty && (!query ("%s", ""))) |
8a3fe4f8 | 2175 | error (_("Not confirmed.")); |
c906108c | 2176 | |
7eedccfa PP |
2177 | symbol_file_add (filename, from_tty ? SYMFILE_VERBOSE : 0, |
2178 | section_addrs, flags); | |
c906108c SS |
2179 | |
2180 | /* Getting new symbols may change our opinion about what is | |
2181 | frameless. */ | |
2182 | reinit_frame_cache (); | |
db162d44 | 2183 | do_cleanups (my_cleanups); |
c906108c SS |
2184 | } |
2185 | \f | |
70992597 | 2186 | |
c906108c SS |
2187 | /* Re-read symbols if a symbol-file has changed. */ |
2188 | void | |
fba45db2 | 2189 | reread_symbols (void) |
c906108c SS |
2190 | { |
2191 | struct objfile *objfile; | |
2192 | long new_modtime; | |
2193 | int reread_one = 0; | |
2194 | struct stat new_statbuf; | |
2195 | int res; | |
2196 | ||
2197 | /* With the addition of shared libraries, this should be modified, | |
2198 | the load time should be saved in the partial symbol tables, since | |
2199 | different tables may come from different source files. FIXME. | |
2200 | This routine should then walk down each partial symbol table | |
2201 | and see if the symbol table that it originates from has been changed */ | |
2202 | ||
c5aa993b JM |
2203 | for (objfile = object_files; objfile; objfile = objfile->next) |
2204 | { | |
9cce227f TG |
2205 | /* solib-sunos.c creates one objfile with obfd. */ |
2206 | if (objfile->obfd == NULL) | |
2207 | continue; | |
2208 | ||
2209 | /* Separate debug objfiles are handled in the main objfile. */ | |
2210 | if (objfile->separate_debug_objfile_backlink) | |
2211 | continue; | |
2212 | ||
52d16ba8 | 2213 | #ifdef DEPRECATED_IBM6000_TARGET |
9cce227f TG |
2214 | /* If this object is from a shared library, then you should |
2215 | stat on the library name, not member name. */ | |
c906108c | 2216 | |
9cce227f TG |
2217 | if (objfile->obfd->my_archive) |
2218 | res = stat (objfile->obfd->my_archive->filename, &new_statbuf); | |
2219 | else | |
c906108c | 2220 | #endif |
9cce227f TG |
2221 | res = stat (objfile->name, &new_statbuf); |
2222 | if (res != 0) | |
2223 | { | |
2224 | /* FIXME, should use print_sys_errmsg but it's not filtered. */ | |
2225 | printf_unfiltered (_("`%s' has disappeared; keeping its symbols.\n"), | |
2226 | objfile->name); | |
2227 | continue; | |
2228 | } | |
2229 | new_modtime = new_statbuf.st_mtime; | |
2230 | if (new_modtime != objfile->mtime) | |
2231 | { | |
2232 | struct cleanup *old_cleanups; | |
2233 | struct section_offsets *offsets; | |
2234 | int num_offsets; | |
2235 | char *obfd_filename; | |
2236 | ||
2237 | printf_unfiltered (_("`%s' has changed; re-reading symbols.\n"), | |
2238 | objfile->name); | |
2239 | ||
2240 | /* There are various functions like symbol_file_add, | |
2241 | symfile_bfd_open, syms_from_objfile, etc., which might | |
2242 | appear to do what we want. But they have various other | |
2243 | effects which we *don't* want. So we just do stuff | |
2244 | ourselves. We don't worry about mapped files (for one thing, | |
2245 | any mapped file will be out of date). */ | |
2246 | ||
2247 | /* If we get an error, blow away this objfile (not sure if | |
2248 | that is the correct response for things like shared | |
2249 | libraries). */ | |
2250 | old_cleanups = make_cleanup_free_objfile (objfile); | |
2251 | /* We need to do this whenever any symbols go away. */ | |
2252 | make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/); | |
2253 | ||
2254 | if (exec_bfd != NULL && strcmp (bfd_get_filename (objfile->obfd), | |
2255 | bfd_get_filename (exec_bfd)) == 0) | |
2256 | { | |
2257 | /* Reload EXEC_BFD without asking anything. */ | |
2258 | ||
2259 | exec_file_attach (bfd_get_filename (objfile->obfd), 0); | |
2260 | } | |
2261 | ||
2262 | /* Clean up any state BFD has sitting around. We don't need | |
2263 | to close the descriptor but BFD lacks a way of closing the | |
2264 | BFD without closing the descriptor. */ | |
2265 | obfd_filename = bfd_get_filename (objfile->obfd); | |
2266 | if (!bfd_close (objfile->obfd)) | |
2267 | error (_("Can't close BFD for %s: %s"), objfile->name, | |
2268 | bfd_errmsg (bfd_get_error ())); | |
874f5765 | 2269 | objfile->obfd = bfd_open_maybe_remote (obfd_filename); |
9cce227f TG |
2270 | if (objfile->obfd == NULL) |
2271 | error (_("Can't open %s to read symbols."), objfile->name); | |
2272 | else | |
2273 | objfile->obfd = gdb_bfd_ref (objfile->obfd); | |
2274 | /* bfd_openr sets cacheable to true, which is what we want. */ | |
2275 | if (!bfd_check_format (objfile->obfd, bfd_object)) | |
2276 | error (_("Can't read symbols from %s: %s."), objfile->name, | |
2277 | bfd_errmsg (bfd_get_error ())); | |
2278 | ||
2279 | /* Save the offsets, we will nuke them with the rest of the | |
2280 | objfile_obstack. */ | |
2281 | num_offsets = objfile->num_sections; | |
2282 | offsets = ((struct section_offsets *) | |
2283 | alloca (SIZEOF_N_SECTION_OFFSETS (num_offsets))); | |
2284 | memcpy (offsets, objfile->section_offsets, | |
2285 | SIZEOF_N_SECTION_OFFSETS (num_offsets)); | |
2286 | ||
2287 | /* Remove any references to this objfile in the global | |
2288 | value lists. */ | |
2289 | preserve_values (objfile); | |
2290 | ||
2291 | /* Nuke all the state that we will re-read. Much of the following | |
2292 | code which sets things to NULL really is necessary to tell | |
2293 | other parts of GDB that there is nothing currently there. | |
2294 | ||
2295 | Try to keep the freeing order compatible with free_objfile. */ | |
2296 | ||
2297 | if (objfile->sf != NULL) | |
2298 | { | |
2299 | (*objfile->sf->sym_finish) (objfile); | |
2300 | } | |
2301 | ||
2302 | clear_objfile_data (objfile); | |
2303 | ||
15d123c9 | 2304 | /* Free the separate debug objfiles. It will be |
9cce227f | 2305 | automatically recreated by sym_read. */ |
15d123c9 | 2306 | free_objfile_separate_debug (objfile); |
9cce227f TG |
2307 | |
2308 | /* FIXME: Do we have to free a whole linked list, or is this | |
2309 | enough? */ | |
2310 | if (objfile->global_psymbols.list) | |
2311 | xfree (objfile->global_psymbols.list); | |
2312 | memset (&objfile->global_psymbols, 0, | |
2313 | sizeof (objfile->global_psymbols)); | |
2314 | if (objfile->static_psymbols.list) | |
2315 | xfree (objfile->static_psymbols.list); | |
2316 | memset (&objfile->static_psymbols, 0, | |
2317 | sizeof (objfile->static_psymbols)); | |
2318 | ||
2319 | /* Free the obstacks for non-reusable objfiles */ | |
2320 | bcache_xfree (objfile->psymbol_cache); | |
2321 | objfile->psymbol_cache = bcache_xmalloc (); | |
2322 | bcache_xfree (objfile->macro_cache); | |
2323 | objfile->macro_cache = bcache_xmalloc (); | |
2324 | bcache_xfree (objfile->filename_cache); | |
2325 | objfile->filename_cache = bcache_xmalloc (); | |
2326 | if (objfile->demangled_names_hash != NULL) | |
2327 | { | |
2328 | htab_delete (objfile->demangled_names_hash); | |
2329 | objfile->demangled_names_hash = NULL; | |
2330 | } | |
2331 | obstack_free (&objfile->objfile_obstack, 0); | |
2332 | objfile->sections = NULL; | |
2333 | objfile->symtabs = NULL; | |
2334 | objfile->psymtabs = NULL; | |
2335 | objfile->psymtabs_addrmap = NULL; | |
2336 | objfile->free_psymtabs = NULL; | |
2337 | objfile->cp_namespace_symtab = NULL; | |
2338 | objfile->msymbols = NULL; | |
2339 | objfile->deprecated_sym_private = NULL; | |
2340 | objfile->minimal_symbol_count = 0; | |
2341 | memset (&objfile->msymbol_hash, 0, | |
2342 | sizeof (objfile->msymbol_hash)); | |
2343 | memset (&objfile->msymbol_demangled_hash, 0, | |
2344 | sizeof (objfile->msymbol_demangled_hash)); | |
2345 | ||
2346 | objfile->psymbol_cache = bcache_xmalloc (); | |
2347 | objfile->macro_cache = bcache_xmalloc (); | |
2348 | objfile->filename_cache = bcache_xmalloc (); | |
2349 | /* obstack_init also initializes the obstack so it is | |
2350 | empty. We could use obstack_specify_allocation but | |
2351 | gdb_obstack.h specifies the alloc/dealloc | |
2352 | functions. */ | |
2353 | obstack_init (&objfile->objfile_obstack); | |
2354 | if (build_objfile_section_table (objfile)) | |
2355 | { | |
2356 | error (_("Can't find the file sections in `%s': %s"), | |
2357 | objfile->name, bfd_errmsg (bfd_get_error ())); | |
2358 | } | |
2359 | terminate_minimal_symbol_table (objfile); | |
2360 | ||
2361 | /* We use the same section offsets as from last time. I'm not | |
2362 | sure whether that is always correct for shared libraries. */ | |
2363 | objfile->section_offsets = (struct section_offsets *) | |
2364 | obstack_alloc (&objfile->objfile_obstack, | |
2365 | SIZEOF_N_SECTION_OFFSETS (num_offsets)); | |
2366 | memcpy (objfile->section_offsets, offsets, | |
2367 | SIZEOF_N_SECTION_OFFSETS (num_offsets)); | |
2368 | objfile->num_sections = num_offsets; | |
2369 | ||
2370 | /* What the hell is sym_new_init for, anyway? The concept of | |
2371 | distinguishing between the main file and additional files | |
2372 | in this way seems rather dubious. */ | |
2373 | if (objfile == symfile_objfile) | |
c906108c | 2374 | { |
9cce227f | 2375 | (*objfile->sf->sym_new_init) (objfile); |
c906108c | 2376 | } |
9cce227f TG |
2377 | |
2378 | (*objfile->sf->sym_init) (objfile); | |
2379 | clear_complaints (&symfile_complaints, 1, 1); | |
2380 | /* Do not set flags as this is safe and we don't want to be | |
2381 | verbose. */ | |
2382 | (*objfile->sf->sym_read) (objfile, 0); | |
2383 | if (!objfile_has_symbols (objfile)) | |
c906108c | 2384 | { |
9cce227f TG |
2385 | wrap_here (""); |
2386 | printf_unfiltered (_("(no debugging symbols found)\n")); | |
2387 | wrap_here (""); | |
c5aa993b | 2388 | } |
9cce227f TG |
2389 | |
2390 | /* We're done reading the symbol file; finish off complaints. */ | |
2391 | clear_complaints (&symfile_complaints, 0, 1); | |
2392 | ||
2393 | /* Getting new symbols may change our opinion about what is | |
2394 | frameless. */ | |
2395 | ||
2396 | reinit_frame_cache (); | |
2397 | ||
2398 | /* Discard cleanups as symbol reading was successful. */ | |
2399 | discard_cleanups (old_cleanups); | |
2400 | ||
2401 | /* If the mtime has changed between the time we set new_modtime | |
2402 | and now, we *want* this to be out of date, so don't call stat | |
2403 | again now. */ | |
2404 | objfile->mtime = new_modtime; | |
2405 | reread_one = 1; | |
2406 | init_entry_point_info (objfile); | |
c906108c SS |
2407 | } |
2408 | } | |
c906108c SS |
2409 | |
2410 | if (reread_one) | |
ea53e89f | 2411 | { |
ff3536bc UW |
2412 | /* Notify objfiles that we've modified objfile sections. */ |
2413 | objfiles_changed (); | |
2414 | ||
ea53e89f JB |
2415 | clear_symtab_users (); |
2416 | /* At least one objfile has changed, so we can consider that | |
2417 | the executable we're debugging has changed too. */ | |
781b42b0 | 2418 | observer_notify_executable_changed (); |
ea53e89f | 2419 | } |
c906108c | 2420 | } |
c906108c SS |
2421 | \f |
2422 | ||
c5aa993b JM |
2423 | |
2424 | typedef struct | |
2425 | { | |
2426 | char *ext; | |
c906108c | 2427 | enum language lang; |
c5aa993b JM |
2428 | } |
2429 | filename_language; | |
c906108c | 2430 | |
c5aa993b | 2431 | static filename_language *filename_language_table; |
c906108c SS |
2432 | static int fl_table_size, fl_table_next; |
2433 | ||
2434 | static void | |
fba45db2 | 2435 | add_filename_language (char *ext, enum language lang) |
c906108c SS |
2436 | { |
2437 | if (fl_table_next >= fl_table_size) | |
2438 | { | |
2439 | fl_table_size += 10; | |
5417f6dc | 2440 | filename_language_table = |
25bf3106 PM |
2441 | xrealloc (filename_language_table, |
2442 | fl_table_size * sizeof (*filename_language_table)); | |
c906108c SS |
2443 | } |
2444 | ||
4fcf66da | 2445 | filename_language_table[fl_table_next].ext = xstrdup (ext); |
c906108c SS |
2446 | filename_language_table[fl_table_next].lang = lang; |
2447 | fl_table_next++; | |
2448 | } | |
2449 | ||
2450 | static char *ext_args; | |
920d2a44 AC |
2451 | static void |
2452 | show_ext_args (struct ui_file *file, int from_tty, | |
2453 | struct cmd_list_element *c, const char *value) | |
2454 | { | |
2455 | fprintf_filtered (file, _("\ | |
2456 | Mapping between filename extension and source language is \"%s\".\n"), | |
2457 | value); | |
2458 | } | |
c906108c SS |
2459 | |
2460 | static void | |
26c41df3 | 2461 | set_ext_lang_command (char *args, int from_tty, struct cmd_list_element *e) |
c906108c SS |
2462 | { |
2463 | int i; | |
2464 | char *cp = ext_args; | |
2465 | enum language lang; | |
2466 | ||
2467 | /* First arg is filename extension, starting with '.' */ | |
2468 | if (*cp != '.') | |
8a3fe4f8 | 2469 | error (_("'%s': Filename extension must begin with '.'"), ext_args); |
c906108c SS |
2470 | |
2471 | /* Find end of first arg. */ | |
c5aa993b | 2472 | while (*cp && !isspace (*cp)) |
c906108c SS |
2473 | cp++; |
2474 | ||
2475 | if (*cp == '\0') | |
8a3fe4f8 | 2476 | error (_("'%s': two arguments required -- filename extension and language"), |
c906108c SS |
2477 | ext_args); |
2478 | ||
2479 | /* Null-terminate first arg */ | |
c5aa993b | 2480 | *cp++ = '\0'; |
c906108c SS |
2481 | |
2482 | /* Find beginning of second arg, which should be a source language. */ | |
2483 | while (*cp && isspace (*cp)) | |
2484 | cp++; | |
2485 | ||
2486 | if (*cp == '\0') | |
8a3fe4f8 | 2487 | error (_("'%s': two arguments required -- filename extension and language"), |
c906108c SS |
2488 | ext_args); |
2489 | ||
2490 | /* Lookup the language from among those we know. */ | |
2491 | lang = language_enum (cp); | |
2492 | ||
2493 | /* Now lookup the filename extension: do we already know it? */ | |
2494 | for (i = 0; i < fl_table_next; i++) | |
2495 | if (0 == strcmp (ext_args, filename_language_table[i].ext)) | |
2496 | break; | |
2497 | ||
2498 | if (i >= fl_table_next) | |
2499 | { | |
2500 | /* new file extension */ | |
2501 | add_filename_language (ext_args, lang); | |
2502 | } | |
2503 | else | |
2504 | { | |
2505 | /* redefining a previously known filename extension */ | |
2506 | ||
2507 | /* if (from_tty) */ | |
2508 | /* query ("Really make files of type %s '%s'?", */ | |
2509 | /* ext_args, language_str (lang)); */ | |
2510 | ||
b8c9b27d | 2511 | xfree (filename_language_table[i].ext); |
4fcf66da | 2512 | filename_language_table[i].ext = xstrdup (ext_args); |
c906108c SS |
2513 | filename_language_table[i].lang = lang; |
2514 | } | |
2515 | } | |
2516 | ||
2517 | static void | |
fba45db2 | 2518 | info_ext_lang_command (char *args, int from_tty) |
c906108c SS |
2519 | { |
2520 | int i; | |
2521 | ||
a3f17187 | 2522 | printf_filtered (_("Filename extensions and the languages they represent:")); |
c906108c SS |
2523 | printf_filtered ("\n\n"); |
2524 | for (i = 0; i < fl_table_next; i++) | |
c5aa993b JM |
2525 | printf_filtered ("\t%s\t- %s\n", |
2526 | filename_language_table[i].ext, | |
c906108c SS |
2527 | language_str (filename_language_table[i].lang)); |
2528 | } | |
2529 | ||
2530 | static void | |
fba45db2 | 2531 | init_filename_language_table (void) |
c906108c SS |
2532 | { |
2533 | if (fl_table_size == 0) /* protect against repetition */ | |
2534 | { | |
2535 | fl_table_size = 20; | |
2536 | fl_table_next = 0; | |
c5aa993b | 2537 | filename_language_table = |
c906108c | 2538 | xmalloc (fl_table_size * sizeof (*filename_language_table)); |
c5aa993b JM |
2539 | add_filename_language (".c", language_c); |
2540 | add_filename_language (".C", language_cplus); | |
2541 | add_filename_language (".cc", language_cplus); | |
2542 | add_filename_language (".cp", language_cplus); | |
2543 | add_filename_language (".cpp", language_cplus); | |
2544 | add_filename_language (".cxx", language_cplus); | |
2545 | add_filename_language (".c++", language_cplus); | |
2546 | add_filename_language (".java", language_java); | |
c906108c | 2547 | add_filename_language (".class", language_java); |
da2cf7e0 | 2548 | add_filename_language (".m", language_objc); |
c5aa993b JM |
2549 | add_filename_language (".f", language_fortran); |
2550 | add_filename_language (".F", language_fortran); | |
2551 | add_filename_language (".s", language_asm); | |
aa707ed0 | 2552 | add_filename_language (".sx", language_asm); |
c5aa993b | 2553 | add_filename_language (".S", language_asm); |
c6fd39cd PM |
2554 | add_filename_language (".pas", language_pascal); |
2555 | add_filename_language (".p", language_pascal); | |
2556 | add_filename_language (".pp", language_pascal); | |
963a6417 PH |
2557 | add_filename_language (".adb", language_ada); |
2558 | add_filename_language (".ads", language_ada); | |
2559 | add_filename_language (".a", language_ada); | |
2560 | add_filename_language (".ada", language_ada); | |
c906108c SS |
2561 | } |
2562 | } | |
2563 | ||
2564 | enum language | |
fba45db2 | 2565 | deduce_language_from_filename (char *filename) |
c906108c SS |
2566 | { |
2567 | int i; | |
2568 | char *cp; | |
2569 | ||
2570 | if (filename != NULL) | |
2571 | if ((cp = strrchr (filename, '.')) != NULL) | |
2572 | for (i = 0; i < fl_table_next; i++) | |
2573 | if (strcmp (cp, filename_language_table[i].ext) == 0) | |
2574 | return filename_language_table[i].lang; | |
2575 | ||
2576 | return language_unknown; | |
2577 | } | |
2578 | \f | |
2579 | /* allocate_symtab: | |
2580 | ||
2581 | Allocate and partly initialize a new symbol table. Return a pointer | |
2582 | to it. error() if no space. | |
2583 | ||
2584 | Caller must set these fields: | |
c5aa993b JM |
2585 | LINETABLE(symtab) |
2586 | symtab->blockvector | |
2587 | symtab->dirname | |
2588 | symtab->free_code | |
2589 | symtab->free_ptr | |
c906108c SS |
2590 | */ |
2591 | ||
2592 | struct symtab * | |
fba45db2 | 2593 | allocate_symtab (char *filename, struct objfile *objfile) |
c906108c | 2594 | { |
52f0bd74 | 2595 | struct symtab *symtab; |
c906108c SS |
2596 | |
2597 | symtab = (struct symtab *) | |
4a146b47 | 2598 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symtab)); |
c906108c | 2599 | memset (symtab, 0, sizeof (*symtab)); |
10abe6bf TT |
2600 | symtab->filename = (char *) bcache (filename, strlen (filename) + 1, |
2601 | objfile->filename_cache); | |
c5aa993b JM |
2602 | symtab->fullname = NULL; |
2603 | symtab->language = deduce_language_from_filename (filename); | |
1c9e8358 | 2604 | symtab->debugformat = "unknown"; |
c906108c SS |
2605 | |
2606 | /* Hook it to the objfile it comes from */ | |
2607 | ||
c5aa993b JM |
2608 | symtab->objfile = objfile; |
2609 | symtab->next = objfile->symtabs; | |
2610 | objfile->symtabs = symtab; | |
c906108c | 2611 | |
c906108c SS |
2612 | return (symtab); |
2613 | } | |
2614 | ||
2615 | struct partial_symtab * | |
d85a05f0 | 2616 | allocate_psymtab (const char *filename, struct objfile *objfile) |
c906108c SS |
2617 | { |
2618 | struct partial_symtab *psymtab; | |
2619 | ||
c5aa993b | 2620 | if (objfile->free_psymtabs) |
c906108c | 2621 | { |
c5aa993b JM |
2622 | psymtab = objfile->free_psymtabs; |
2623 | objfile->free_psymtabs = psymtab->next; | |
c906108c SS |
2624 | } |
2625 | else | |
2626 | psymtab = (struct partial_symtab *) | |
8b92e4d5 | 2627 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
2628 | sizeof (struct partial_symtab)); |
2629 | ||
2630 | memset (psymtab, 0, sizeof (struct partial_symtab)); | |
10abe6bf TT |
2631 | psymtab->filename = (char *) bcache (filename, strlen (filename) + 1, |
2632 | objfile->filename_cache); | |
c5aa993b | 2633 | psymtab->symtab = NULL; |
c906108c SS |
2634 | |
2635 | /* Prepend it to the psymtab list for the objfile it belongs to. | |
2636 | Psymtabs are searched in most recent inserted -> least recent | |
2637 | inserted order. */ | |
2638 | ||
c5aa993b JM |
2639 | psymtab->objfile = objfile; |
2640 | psymtab->next = objfile->psymtabs; | |
2641 | objfile->psymtabs = psymtab; | |
c906108c SS |
2642 | #if 0 |
2643 | { | |
2644 | struct partial_symtab **prev_pst; | |
c5aa993b JM |
2645 | psymtab->objfile = objfile; |
2646 | psymtab->next = NULL; | |
2647 | prev_pst = &(objfile->psymtabs); | |
c906108c | 2648 | while ((*prev_pst) != NULL) |
c5aa993b | 2649 | prev_pst = &((*prev_pst)->next); |
c906108c | 2650 | (*prev_pst) = psymtab; |
c5aa993b | 2651 | } |
c906108c | 2652 | #endif |
c5aa993b | 2653 | |
c906108c SS |
2654 | return (psymtab); |
2655 | } | |
2656 | ||
2657 | void | |
fba45db2 | 2658 | discard_psymtab (struct partial_symtab *pst) |
c906108c SS |
2659 | { |
2660 | struct partial_symtab **prev_pst; | |
2661 | ||
2662 | /* From dbxread.c: | |
2663 | Empty psymtabs happen as a result of header files which don't | |
2664 | have any symbols in them. There can be a lot of them. But this | |
2665 | check is wrong, in that a psymtab with N_SLINE entries but | |
2666 | nothing else is not empty, but we don't realize that. Fixing | |
2667 | that without slowing things down might be tricky. */ | |
2668 | ||
2669 | /* First, snip it out of the psymtab chain */ | |
2670 | ||
2671 | prev_pst = &(pst->objfile->psymtabs); | |
2672 | while ((*prev_pst) != pst) | |
2673 | prev_pst = &((*prev_pst)->next); | |
2674 | (*prev_pst) = pst->next; | |
2675 | ||
2676 | /* Next, put it on a free list for recycling */ | |
2677 | ||
2678 | pst->next = pst->objfile->free_psymtabs; | |
2679 | pst->objfile->free_psymtabs = pst; | |
2680 | } | |
c906108c | 2681 | \f |
c5aa993b | 2682 | |
c906108c SS |
2683 | /* Reset all data structures in gdb which may contain references to symbol |
2684 | table data. */ | |
2685 | ||
2686 | void | |
fba45db2 | 2687 | clear_symtab_users (void) |
c906108c SS |
2688 | { |
2689 | /* Someday, we should do better than this, by only blowing away | |
2690 | the things that really need to be blown. */ | |
c0501be5 DJ |
2691 | |
2692 | /* Clear the "current" symtab first, because it is no longer valid. | |
2693 | breakpoint_re_set may try to access the current symtab. */ | |
2694 | clear_current_source_symtab_and_line (); | |
2695 | ||
c906108c | 2696 | clear_displays (); |
c906108c | 2697 | breakpoint_re_set (); |
6c95b8df | 2698 | set_default_breakpoint (0, NULL, 0, 0, 0); |
c906108c | 2699 | clear_pc_function_cache (); |
06d3b283 | 2700 | observer_notify_new_objfile (NULL); |
9bdcbae7 DJ |
2701 | |
2702 | /* Clear globals which might have pointed into a removed objfile. | |
2703 | FIXME: It's not clear which of these are supposed to persist | |
2704 | between expressions and which ought to be reset each time. */ | |
2705 | expression_context_block = NULL; | |
2706 | innermost_block = NULL; | |
8756216b DP |
2707 | |
2708 | /* Varobj may refer to old symbols, perform a cleanup. */ | |
2709 | varobj_invalidate (); | |
2710 | ||
c906108c SS |
2711 | } |
2712 | ||
74b7792f AC |
2713 | static void |
2714 | clear_symtab_users_cleanup (void *ignore) | |
2715 | { | |
2716 | clear_symtab_users (); | |
2717 | } | |
c906108c SS |
2718 | \f |
2719 | /* Allocate and partially fill a partial symtab. It will be | |
2720 | completely filled at the end of the symbol list. | |
2721 | ||
d4f3574e | 2722 | FILENAME is the name of the symbol-file we are reading from. */ |
c906108c SS |
2723 | |
2724 | struct partial_symtab * | |
fba45db2 | 2725 | start_psymtab_common (struct objfile *objfile, |
d85a05f0 DJ |
2726 | struct section_offsets *section_offsets, |
2727 | const char *filename, | |
fba45db2 KB |
2728 | CORE_ADDR textlow, struct partial_symbol **global_syms, |
2729 | struct partial_symbol **static_syms) | |
c906108c SS |
2730 | { |
2731 | struct partial_symtab *psymtab; | |
2732 | ||
2733 | psymtab = allocate_psymtab (filename, objfile); | |
c5aa993b JM |
2734 | psymtab->section_offsets = section_offsets; |
2735 | psymtab->textlow = textlow; | |
2736 | psymtab->texthigh = psymtab->textlow; /* default */ | |
2737 | psymtab->globals_offset = global_syms - objfile->global_psymbols.list; | |
2738 | psymtab->statics_offset = static_syms - objfile->static_psymbols.list; | |
c906108c SS |
2739 | return (psymtab); |
2740 | } | |
2741 | \f | |
2e618c13 AR |
2742 | /* Helper function, initialises partial symbol structure and stashes |
2743 | it into objfile's bcache. Note that our caching mechanism will | |
2744 | use all fields of struct partial_symbol to determine hash value of the | |
2745 | structure. In other words, having two symbols with the same name but | |
2746 | different domain (or address) is possible and correct. */ | |
2747 | ||
11d31d94 | 2748 | static const struct partial_symbol * |
04a679b8 TT |
2749 | add_psymbol_to_bcache (char *name, int namelength, int copy_name, |
2750 | domain_enum domain, | |
2e618c13 AR |
2751 | enum address_class class, |
2752 | long val, /* Value as a long */ | |
2753 | CORE_ADDR coreaddr, /* Value as a CORE_ADDR */ | |
2754 | enum language language, struct objfile *objfile, | |
2755 | int *added) | |
2756 | { | |
69a943f0 TT |
2757 | /* psymbol is static so that there will be no uninitialized gaps in the |
2758 | structure which might contain random data, causing cache misses in | |
2759 | bcache. */ | |
2760 | static struct partial_symbol psymbol; | |
2761 | ||
2762 | /* However, we must ensure that the entire 'value' field has been | |
2763 | zeroed before assigning to it, because an assignment may not | |
2764 | write the entire field. */ | |
2765 | memset (&psymbol.ginfo.value, 0, sizeof (psymbol.ginfo.value)); | |
2e618c13 AR |
2766 | /* val and coreaddr are mutually exclusive, one of them *will* be zero */ |
2767 | if (val != 0) | |
2768 | { | |
2769 | SYMBOL_VALUE (&psymbol) = val; | |
2770 | } | |
2771 | else | |
2772 | { | |
2773 | SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr; | |
2774 | } | |
2775 | SYMBOL_SECTION (&psymbol) = 0; | |
2776 | SYMBOL_LANGUAGE (&psymbol) = language; | |
2777 | PSYMBOL_DOMAIN (&psymbol) = domain; | |
2778 | PSYMBOL_CLASS (&psymbol) = class; | |
2779 | ||
04a679b8 | 2780 | SYMBOL_SET_NAMES (&psymbol, name, namelength, copy_name, objfile); |
2e618c13 AR |
2781 | |
2782 | /* Stash the partial symbol away in the cache */ | |
11d31d94 TT |
2783 | return bcache_full (&psymbol, sizeof (struct partial_symbol), |
2784 | objfile->psymbol_cache, added); | |
2e618c13 AR |
2785 | } |
2786 | ||
2787 | /* Helper function, adds partial symbol to the given partial symbol | |
2788 | list. */ | |
2789 | ||
2790 | static void | |
2791 | append_psymbol_to_list (struct psymbol_allocation_list *list, | |
11d31d94 | 2792 | const struct partial_symbol *psym, |
2e618c13 AR |
2793 | struct objfile *objfile) |
2794 | { | |
2795 | if (list->next >= list->list + list->size) | |
2796 | extend_psymbol_list (list, objfile); | |
11d31d94 | 2797 | *list->next++ = (struct partial_symbol *) psym; |
2e618c13 AR |
2798 | OBJSTAT (objfile, n_psyms++); |
2799 | } | |
2800 | ||
c906108c | 2801 | /* Add a symbol with a long value to a psymtab. |
5417f6dc | 2802 | Since one arg is a struct, we pass in a ptr and deref it (sigh). |
5c4e30ca DC |
2803 | Return the partial symbol that has been added. */ |
2804 | ||
2805 | /* NOTE: carlton/2003-09-11: The reason why we return the partial | |
2806 | symbol is so that callers can get access to the symbol's demangled | |
2807 | name, which they don't have any cheap way to determine otherwise. | |
2808 | (Currenly, dwarf2read.c is the only file who uses that information, | |
2809 | though it's possible that other readers might in the future.) | |
2810 | Elena wasn't thrilled about that, and I don't blame her, but we | |
2811 | couldn't come up with a better way to get that information. If | |
2812 | it's needed in other situations, we could consider breaking up | |
2813 | SYMBOL_SET_NAMES to provide access to the demangled name lookup | |
2814 | cache. */ | |
2815 | ||
2816 | const struct partial_symbol * | |
04a679b8 TT |
2817 | add_psymbol_to_list (char *name, int namelength, int copy_name, |
2818 | domain_enum domain, | |
fba45db2 | 2819 | enum address_class class, |
2e618c13 AR |
2820 | struct psymbol_allocation_list *list, |
2821 | long val, /* Value as a long */ | |
fba45db2 KB |
2822 | CORE_ADDR coreaddr, /* Value as a CORE_ADDR */ |
2823 | enum language language, struct objfile *objfile) | |
c906108c | 2824 | { |
11d31d94 | 2825 | const struct partial_symbol *psym; |
2de7ced7 | 2826 | |
2e618c13 | 2827 | int added; |
c906108c SS |
2828 | |
2829 | /* Stash the partial symbol away in the cache */ | |
04a679b8 | 2830 | psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, class, |
2e618c13 | 2831 | val, coreaddr, language, objfile, &added); |
c906108c | 2832 | |
2e618c13 AR |
2833 | /* Do not duplicate global partial symbols. */ |
2834 | if (list == &objfile->global_psymbols | |
2835 | && !added) | |
2836 | return psym; | |
5c4e30ca | 2837 | |
2e618c13 AR |
2838 | /* Save pointer to partial symbol in psymtab, growing symtab if needed. */ |
2839 | append_psymbol_to_list (list, psym, objfile); | |
5c4e30ca | 2840 | return psym; |
c906108c SS |
2841 | } |
2842 | ||
c906108c SS |
2843 | /* Initialize storage for partial symbols. */ |
2844 | ||
2845 | void | |
fba45db2 | 2846 | init_psymbol_list (struct objfile *objfile, int total_symbols) |
c906108c SS |
2847 | { |
2848 | /* Free any previously allocated psymbol lists. */ | |
c5aa993b JM |
2849 | |
2850 | if (objfile->global_psymbols.list) | |
c906108c | 2851 | { |
2dc74dc1 | 2852 | xfree (objfile->global_psymbols.list); |
c906108c | 2853 | } |
c5aa993b | 2854 | if (objfile->static_psymbols.list) |
c906108c | 2855 | { |
2dc74dc1 | 2856 | xfree (objfile->static_psymbols.list); |
c906108c | 2857 | } |
c5aa993b | 2858 | |
c906108c SS |
2859 | /* Current best guess is that approximately a twentieth |
2860 | of the total symbols (in a debugging file) are global or static | |
2861 | oriented symbols */ | |
c906108c | 2862 | |
c5aa993b JM |
2863 | objfile->global_psymbols.size = total_symbols / 10; |
2864 | objfile->static_psymbols.size = total_symbols / 10; | |
2865 | ||
2866 | if (objfile->global_psymbols.size > 0) | |
c906108c | 2867 | { |
c5aa993b JM |
2868 | objfile->global_psymbols.next = |
2869 | objfile->global_psymbols.list = (struct partial_symbol **) | |
7936743b AC |
2870 | xmalloc ((objfile->global_psymbols.size |
2871 | * sizeof (struct partial_symbol *))); | |
c906108c | 2872 | } |
c5aa993b | 2873 | if (objfile->static_psymbols.size > 0) |
c906108c | 2874 | { |
c5aa993b JM |
2875 | objfile->static_psymbols.next = |
2876 | objfile->static_psymbols.list = (struct partial_symbol **) | |
7936743b AC |
2877 | xmalloc ((objfile->static_psymbols.size |
2878 | * sizeof (struct partial_symbol *))); | |
c906108c SS |
2879 | } |
2880 | } | |
2881 | ||
2882 | /* OVERLAYS: | |
2883 | The following code implements an abstraction for debugging overlay sections. | |
2884 | ||
2885 | The target model is as follows: | |
2886 | 1) The gnu linker will permit multiple sections to be mapped into the | |
c5aa993b | 2887 | same VMA, each with its own unique LMA (or load address). |
c906108c | 2888 | 2) It is assumed that some runtime mechanism exists for mapping the |
c5aa993b | 2889 | sections, one by one, from the load address into the VMA address. |
5417f6dc | 2890 | 3) This code provides a mechanism for gdb to keep track of which |
c5aa993b JM |
2891 | sections should be considered to be mapped from the VMA to the LMA. |
2892 | This information is used for symbol lookup, and memory read/write. | |
5417f6dc | 2893 | For instance, if a section has been mapped then its contents |
c5aa993b | 2894 | should be read from the VMA, otherwise from the LMA. |
c906108c SS |
2895 | |
2896 | Two levels of debugger support for overlays are available. One is | |
2897 | "manual", in which the debugger relies on the user to tell it which | |
2898 | overlays are currently mapped. This level of support is | |
2899 | implemented entirely in the core debugger, and the information about | |
2900 | whether a section is mapped is kept in the objfile->obj_section table. | |
2901 | ||
2902 | The second level of support is "automatic", and is only available if | |
2903 | the target-specific code provides functionality to read the target's | |
2904 | overlay mapping table, and translate its contents for the debugger | |
2905 | (by updating the mapped state information in the obj_section tables). | |
2906 | ||
2907 | The interface is as follows: | |
c5aa993b JM |
2908 | User commands: |
2909 | overlay map <name> -- tell gdb to consider this section mapped | |
2910 | overlay unmap <name> -- tell gdb to consider this section unmapped | |
2911 | overlay list -- list the sections that GDB thinks are mapped | |
2912 | overlay read-target -- get the target's state of what's mapped | |
2913 | overlay off/manual/auto -- set overlay debugging state | |
2914 | Functional interface: | |
2915 | find_pc_mapped_section(pc): if the pc is in the range of a mapped | |
2916 | section, return that section. | |
5417f6dc | 2917 | find_pc_overlay(pc): find any overlay section that contains |
c5aa993b | 2918 | the pc, either in its VMA or its LMA |
714835d5 | 2919 | section_is_mapped(sect): true if overlay is marked as mapped |
c5aa993b JM |
2920 | section_is_overlay(sect): true if section's VMA != LMA |
2921 | pc_in_mapped_range(pc,sec): true if pc belongs to section's VMA | |
2922 | pc_in_unmapped_range(...): true if pc belongs to section's LMA | |
9ec8e6a0 | 2923 | sections_overlap(sec1, sec2): true if mapped sec1 and sec2 ranges overlap |
c5aa993b JM |
2924 | overlay_mapped_address(...): map an address from section's LMA to VMA |
2925 | overlay_unmapped_address(...): map an address from section's VMA to LMA | |
2926 | symbol_overlayed_address(...): Return a "current" address for symbol: | |
2927 | either in VMA or LMA depending on whether | |
2928 | the symbol's section is currently mapped | |
c906108c SS |
2929 | */ |
2930 | ||
2931 | /* Overlay debugging state: */ | |
2932 | ||
d874f1e2 | 2933 | enum overlay_debugging_state overlay_debugging = ovly_off; |
c906108c SS |
2934 | int overlay_cache_invalid = 0; /* True if need to refresh mapped state */ |
2935 | ||
c906108c | 2936 | /* Function: section_is_overlay (SECTION) |
5417f6dc | 2937 | Returns true if SECTION has VMA not equal to LMA, ie. |
c906108c SS |
2938 | SECTION is loaded at an address different from where it will "run". */ |
2939 | ||
2940 | int | |
714835d5 | 2941 | section_is_overlay (struct obj_section *section) |
c906108c | 2942 | { |
714835d5 UW |
2943 | if (overlay_debugging && section) |
2944 | { | |
2945 | bfd *abfd = section->objfile->obfd; | |
2946 | asection *bfd_section = section->the_bfd_section; | |
2947 | ||
2948 | if (bfd_section_lma (abfd, bfd_section) != 0 | |
2949 | && bfd_section_lma (abfd, bfd_section) | |
2950 | != bfd_section_vma (abfd, bfd_section)) | |
2951 | return 1; | |
2952 | } | |
c906108c SS |
2953 | |
2954 | return 0; | |
2955 | } | |
2956 | ||
2957 | /* Function: overlay_invalidate_all (void) | |
2958 | Invalidate the mapped state of all overlay sections (mark it as stale). */ | |
2959 | ||
2960 | static void | |
fba45db2 | 2961 | overlay_invalidate_all (void) |
c906108c | 2962 | { |
c5aa993b | 2963 | struct objfile *objfile; |
c906108c SS |
2964 | struct obj_section *sect; |
2965 | ||
2966 | ALL_OBJSECTIONS (objfile, sect) | |
714835d5 UW |
2967 | if (section_is_overlay (sect)) |
2968 | sect->ovly_mapped = -1; | |
c906108c SS |
2969 | } |
2970 | ||
714835d5 | 2971 | /* Function: section_is_mapped (SECTION) |
5417f6dc | 2972 | Returns true if section is an overlay, and is currently mapped. |
c906108c SS |
2973 | |
2974 | Access to the ovly_mapped flag is restricted to this function, so | |
2975 | that we can do automatic update. If the global flag | |
2976 | OVERLAY_CACHE_INVALID is set (by wait_for_inferior), then call | |
2977 | overlay_invalidate_all. If the mapped state of the particular | |
2978 | section is stale, then call TARGET_OVERLAY_UPDATE to refresh it. */ | |
2979 | ||
714835d5 UW |
2980 | int |
2981 | section_is_mapped (struct obj_section *osect) | |
c906108c | 2982 | { |
9216df95 UW |
2983 | struct gdbarch *gdbarch; |
2984 | ||
714835d5 | 2985 | if (osect == 0 || !section_is_overlay (osect)) |
c906108c SS |
2986 | return 0; |
2987 | ||
c5aa993b | 2988 | switch (overlay_debugging) |
c906108c SS |
2989 | { |
2990 | default: | |
d874f1e2 | 2991 | case ovly_off: |
c5aa993b | 2992 | return 0; /* overlay debugging off */ |
d874f1e2 | 2993 | case ovly_auto: /* overlay debugging automatic */ |
1c772458 | 2994 | /* Unles there is a gdbarch_overlay_update function, |
c5aa993b | 2995 | there's really nothing useful to do here (can't really go auto) */ |
9216df95 UW |
2996 | gdbarch = get_objfile_arch (osect->objfile); |
2997 | if (gdbarch_overlay_update_p (gdbarch)) | |
c906108c SS |
2998 | { |
2999 | if (overlay_cache_invalid) | |
3000 | { | |
3001 | overlay_invalidate_all (); | |
3002 | overlay_cache_invalid = 0; | |
3003 | } | |
3004 | if (osect->ovly_mapped == -1) | |
9216df95 | 3005 | gdbarch_overlay_update (gdbarch, osect); |
c906108c SS |
3006 | } |
3007 | /* fall thru to manual case */ | |
d874f1e2 | 3008 | case ovly_on: /* overlay debugging manual */ |
c906108c SS |
3009 | return osect->ovly_mapped == 1; |
3010 | } | |
3011 | } | |
3012 | ||
c906108c SS |
3013 | /* Function: pc_in_unmapped_range |
3014 | If PC falls into the lma range of SECTION, return true, else false. */ | |
3015 | ||
3016 | CORE_ADDR | |
714835d5 | 3017 | pc_in_unmapped_range (CORE_ADDR pc, struct obj_section *section) |
c906108c | 3018 | { |
714835d5 UW |
3019 | if (section_is_overlay (section)) |
3020 | { | |
3021 | bfd *abfd = section->objfile->obfd; | |
3022 | asection *bfd_section = section->the_bfd_section; | |
fbd35540 | 3023 | |
714835d5 UW |
3024 | /* We assume the LMA is relocated by the same offset as the VMA. */ |
3025 | bfd_vma size = bfd_get_section_size (bfd_section); | |
3026 | CORE_ADDR offset = obj_section_offset (section); | |
3027 | ||
3028 | if (bfd_get_section_lma (abfd, bfd_section) + offset <= pc | |
3029 | && pc < bfd_get_section_lma (abfd, bfd_section) + offset + size) | |
3030 | return 1; | |
3031 | } | |
c906108c | 3032 | |
c906108c SS |
3033 | return 0; |
3034 | } | |
3035 | ||
3036 | /* Function: pc_in_mapped_range | |
3037 | If PC falls into the vma range of SECTION, return true, else false. */ | |
3038 | ||
3039 | CORE_ADDR | |
714835d5 | 3040 | pc_in_mapped_range (CORE_ADDR pc, struct obj_section *section) |
c906108c | 3041 | { |
714835d5 UW |
3042 | if (section_is_overlay (section)) |
3043 | { | |
3044 | if (obj_section_addr (section) <= pc | |
3045 | && pc < obj_section_endaddr (section)) | |
3046 | return 1; | |
3047 | } | |
c906108c | 3048 | |
c906108c SS |
3049 | return 0; |
3050 | } | |
3051 | ||
9ec8e6a0 JB |
3052 | |
3053 | /* Return true if the mapped ranges of sections A and B overlap, false | |
3054 | otherwise. */ | |
b9362cc7 | 3055 | static int |
714835d5 | 3056 | sections_overlap (struct obj_section *a, struct obj_section *b) |
9ec8e6a0 | 3057 | { |
714835d5 UW |
3058 | CORE_ADDR a_start = obj_section_addr (a); |
3059 | CORE_ADDR a_end = obj_section_endaddr (a); | |
3060 | CORE_ADDR b_start = obj_section_addr (b); | |
3061 | CORE_ADDR b_end = obj_section_endaddr (b); | |
9ec8e6a0 JB |
3062 | |
3063 | return (a_start < b_end && b_start < a_end); | |
3064 | } | |
3065 | ||
c906108c SS |
3066 | /* Function: overlay_unmapped_address (PC, SECTION) |
3067 | Returns the address corresponding to PC in the unmapped (load) range. | |
3068 | May be the same as PC. */ | |
3069 | ||
3070 | CORE_ADDR | |
714835d5 | 3071 | overlay_unmapped_address (CORE_ADDR pc, struct obj_section *section) |
c906108c | 3072 | { |
714835d5 UW |
3073 | if (section_is_overlay (section) && pc_in_mapped_range (pc, section)) |
3074 | { | |
3075 | bfd *abfd = section->objfile->obfd; | |
3076 | asection *bfd_section = section->the_bfd_section; | |
fbd35540 | 3077 | |
714835d5 UW |
3078 | return pc + bfd_section_lma (abfd, bfd_section) |
3079 | - bfd_section_vma (abfd, bfd_section); | |
3080 | } | |
c906108c SS |
3081 | |
3082 | return pc; | |
3083 | } | |
3084 | ||
3085 | /* Function: overlay_mapped_address (PC, SECTION) | |
3086 | Returns the address corresponding to PC in the mapped (runtime) range. | |
3087 | May be the same as PC. */ | |
3088 | ||
3089 | CORE_ADDR | |
714835d5 | 3090 | overlay_mapped_address (CORE_ADDR pc, struct obj_section *section) |
c906108c | 3091 | { |
714835d5 UW |
3092 | if (section_is_overlay (section) && pc_in_unmapped_range (pc, section)) |
3093 | { | |
3094 | bfd *abfd = section->objfile->obfd; | |
3095 | asection *bfd_section = section->the_bfd_section; | |
fbd35540 | 3096 | |
714835d5 UW |
3097 | return pc + bfd_section_vma (abfd, bfd_section) |
3098 | - bfd_section_lma (abfd, bfd_section); | |
3099 | } | |
c906108c SS |
3100 | |
3101 | return pc; | |
3102 | } | |
3103 | ||
3104 | ||
5417f6dc | 3105 | /* Function: symbol_overlayed_address |
c906108c SS |
3106 | Return one of two addresses (relative to the VMA or to the LMA), |
3107 | depending on whether the section is mapped or not. */ | |
3108 | ||
c5aa993b | 3109 | CORE_ADDR |
714835d5 | 3110 | symbol_overlayed_address (CORE_ADDR address, struct obj_section *section) |
c906108c SS |
3111 | { |
3112 | if (overlay_debugging) | |
3113 | { | |
3114 | /* If the symbol has no section, just return its regular address. */ | |
3115 | if (section == 0) | |
3116 | return address; | |
3117 | /* If the symbol's section is not an overlay, just return its address */ | |
3118 | if (!section_is_overlay (section)) | |
3119 | return address; | |
3120 | /* If the symbol's section is mapped, just return its address */ | |
3121 | if (section_is_mapped (section)) | |
3122 | return address; | |
3123 | /* | |
3124 | * HOWEVER: if the symbol is in an overlay section which is NOT mapped, | |
3125 | * then return its LOADED address rather than its vma address!! | |
3126 | */ | |
3127 | return overlay_unmapped_address (address, section); | |
3128 | } | |
3129 | return address; | |
3130 | } | |
3131 | ||
5417f6dc | 3132 | /* Function: find_pc_overlay (PC) |
c906108c SS |
3133 | Return the best-match overlay section for PC: |
3134 | If PC matches a mapped overlay section's VMA, return that section. | |
3135 | Else if PC matches an unmapped section's VMA, return that section. | |
3136 | Else if PC matches an unmapped section's LMA, return that section. */ | |
3137 | ||
714835d5 | 3138 | struct obj_section * |
fba45db2 | 3139 | find_pc_overlay (CORE_ADDR pc) |
c906108c | 3140 | { |
c5aa993b | 3141 | struct objfile *objfile; |
c906108c SS |
3142 | struct obj_section *osect, *best_match = NULL; |
3143 | ||
3144 | if (overlay_debugging) | |
3145 | ALL_OBJSECTIONS (objfile, osect) | |
714835d5 | 3146 | if (section_is_overlay (osect)) |
c5aa993b | 3147 | { |
714835d5 | 3148 | if (pc_in_mapped_range (pc, osect)) |
c5aa993b | 3149 | { |
714835d5 UW |
3150 | if (section_is_mapped (osect)) |
3151 | return osect; | |
c5aa993b JM |
3152 | else |
3153 | best_match = osect; | |
3154 | } | |
714835d5 | 3155 | else if (pc_in_unmapped_range (pc, osect)) |
c5aa993b JM |
3156 | best_match = osect; |
3157 | } | |
714835d5 | 3158 | return best_match; |
c906108c SS |
3159 | } |
3160 | ||
3161 | /* Function: find_pc_mapped_section (PC) | |
5417f6dc | 3162 | If PC falls into the VMA address range of an overlay section that is |
c906108c SS |
3163 | currently marked as MAPPED, return that section. Else return NULL. */ |
3164 | ||
714835d5 | 3165 | struct obj_section * |
fba45db2 | 3166 | find_pc_mapped_section (CORE_ADDR pc) |
c906108c | 3167 | { |
c5aa993b | 3168 | struct objfile *objfile; |
c906108c SS |
3169 | struct obj_section *osect; |
3170 | ||
3171 | if (overlay_debugging) | |
3172 | ALL_OBJSECTIONS (objfile, osect) | |
714835d5 UW |
3173 | if (pc_in_mapped_range (pc, osect) && section_is_mapped (osect)) |
3174 | return osect; | |
c906108c SS |
3175 | |
3176 | return NULL; | |
3177 | } | |
3178 | ||
3179 | /* Function: list_overlays_command | |
3180 | Print a list of mapped sections and their PC ranges */ | |
3181 | ||
3182 | void | |
fba45db2 | 3183 | list_overlays_command (char *args, int from_tty) |
c906108c | 3184 | { |
c5aa993b JM |
3185 | int nmapped = 0; |
3186 | struct objfile *objfile; | |
c906108c SS |
3187 | struct obj_section *osect; |
3188 | ||
3189 | if (overlay_debugging) | |
3190 | ALL_OBJSECTIONS (objfile, osect) | |
714835d5 | 3191 | if (section_is_mapped (osect)) |
c5aa993b | 3192 | { |
5af949e3 | 3193 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c5aa993b JM |
3194 | const char *name; |
3195 | bfd_vma lma, vma; | |
3196 | int size; | |
3197 | ||
3198 | vma = bfd_section_vma (objfile->obfd, osect->the_bfd_section); | |
3199 | lma = bfd_section_lma (objfile->obfd, osect->the_bfd_section); | |
2c500098 | 3200 | size = bfd_get_section_size (osect->the_bfd_section); |
c5aa993b JM |
3201 | name = bfd_section_name (objfile->obfd, osect->the_bfd_section); |
3202 | ||
3203 | printf_filtered ("Section %s, loaded at ", name); | |
5af949e3 | 3204 | fputs_filtered (paddress (gdbarch, lma), gdb_stdout); |
c5aa993b | 3205 | puts_filtered (" - "); |
5af949e3 | 3206 | fputs_filtered (paddress (gdbarch, lma + size), gdb_stdout); |
c5aa993b | 3207 | printf_filtered (", mapped at "); |
5af949e3 | 3208 | fputs_filtered (paddress (gdbarch, vma), gdb_stdout); |
c5aa993b | 3209 | puts_filtered (" - "); |
5af949e3 | 3210 | fputs_filtered (paddress (gdbarch, vma + size), gdb_stdout); |
c5aa993b JM |
3211 | puts_filtered ("\n"); |
3212 | ||
3213 | nmapped++; | |
3214 | } | |
c906108c | 3215 | if (nmapped == 0) |
a3f17187 | 3216 | printf_filtered (_("No sections are mapped.\n")); |
c906108c SS |
3217 | } |
3218 | ||
3219 | /* Function: map_overlay_command | |
3220 | Mark the named section as mapped (ie. residing at its VMA address). */ | |
3221 | ||
3222 | void | |
fba45db2 | 3223 | map_overlay_command (char *args, int from_tty) |
c906108c | 3224 | { |
c5aa993b JM |
3225 | struct objfile *objfile, *objfile2; |
3226 | struct obj_section *sec, *sec2; | |
c906108c SS |
3227 | |
3228 | if (!overlay_debugging) | |
8a3fe4f8 | 3229 | error (_("\ |
515ad16c | 3230 | Overlay debugging not enabled. Use either the 'overlay auto' or\n\ |
8a3fe4f8 | 3231 | the 'overlay manual' command.")); |
c906108c SS |
3232 | |
3233 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 3234 | error (_("Argument required: name of an overlay section")); |
c906108c SS |
3235 | |
3236 | /* First, find a section matching the user supplied argument */ | |
3237 | ALL_OBJSECTIONS (objfile, sec) | |
3238 | if (!strcmp (bfd_section_name (objfile->obfd, sec->the_bfd_section), args)) | |
c5aa993b JM |
3239 | { |
3240 | /* Now, check to see if the section is an overlay. */ | |
714835d5 | 3241 | if (!section_is_overlay (sec)) |
c5aa993b JM |
3242 | continue; /* not an overlay section */ |
3243 | ||
3244 | /* Mark the overlay as "mapped" */ | |
3245 | sec->ovly_mapped = 1; | |
3246 | ||
3247 | /* Next, make a pass and unmap any sections that are | |
3248 | overlapped by this new section: */ | |
3249 | ALL_OBJSECTIONS (objfile2, sec2) | |
714835d5 | 3250 | if (sec2->ovly_mapped && sec != sec2 && sections_overlap (sec, sec2)) |
c5aa993b JM |
3251 | { |
3252 | if (info_verbose) | |
a3f17187 | 3253 | printf_unfiltered (_("Note: section %s unmapped by overlap\n"), |
c5aa993b JM |
3254 | bfd_section_name (objfile->obfd, |
3255 | sec2->the_bfd_section)); | |
3256 | sec2->ovly_mapped = 0; /* sec2 overlaps sec: unmap sec2 */ | |
3257 | } | |
3258 | return; | |
3259 | } | |
8a3fe4f8 | 3260 | error (_("No overlay section called %s"), args); |
c906108c SS |
3261 | } |
3262 | ||
3263 | /* Function: unmap_overlay_command | |
5417f6dc | 3264 | Mark the overlay section as unmapped |
c906108c SS |
3265 | (ie. resident in its LMA address range, rather than the VMA range). */ |
3266 | ||
3267 | void | |
fba45db2 | 3268 | unmap_overlay_command (char *args, int from_tty) |
c906108c | 3269 | { |
c5aa993b | 3270 | struct objfile *objfile; |
c906108c SS |
3271 | struct obj_section *sec; |
3272 | ||
3273 | if (!overlay_debugging) | |
8a3fe4f8 | 3274 | error (_("\ |
515ad16c | 3275 | Overlay debugging not enabled. Use either the 'overlay auto' or\n\ |
8a3fe4f8 | 3276 | the 'overlay manual' command.")); |
c906108c SS |
3277 | |
3278 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 3279 | error (_("Argument required: name of an overlay section")); |
c906108c SS |
3280 | |
3281 | /* First, find a section matching the user supplied argument */ | |
3282 | ALL_OBJSECTIONS (objfile, sec) | |
3283 | if (!strcmp (bfd_section_name (objfile->obfd, sec->the_bfd_section), args)) | |
c5aa993b JM |
3284 | { |
3285 | if (!sec->ovly_mapped) | |
8a3fe4f8 | 3286 | error (_("Section %s is not mapped"), args); |
c5aa993b JM |
3287 | sec->ovly_mapped = 0; |
3288 | return; | |
3289 | } | |
8a3fe4f8 | 3290 | error (_("No overlay section called %s"), args); |
c906108c SS |
3291 | } |
3292 | ||
3293 | /* Function: overlay_auto_command | |
3294 | A utility command to turn on overlay debugging. | |
3295 | Possibly this should be done via a set/show command. */ | |
3296 | ||
3297 | static void | |
fba45db2 | 3298 | overlay_auto_command (char *args, int from_tty) |
c906108c | 3299 | { |
d874f1e2 | 3300 | overlay_debugging = ovly_auto; |
1900040c | 3301 | enable_overlay_breakpoints (); |
c906108c | 3302 | if (info_verbose) |
a3f17187 | 3303 | printf_unfiltered (_("Automatic overlay debugging enabled.")); |
c906108c SS |
3304 | } |
3305 | ||
3306 | /* Function: overlay_manual_command | |
3307 | A utility command to turn on overlay debugging. | |
3308 | Possibly this should be done via a set/show command. */ | |
3309 | ||
3310 | static void | |
fba45db2 | 3311 | overlay_manual_command (char *args, int from_tty) |
c906108c | 3312 | { |
d874f1e2 | 3313 | overlay_debugging = ovly_on; |
1900040c | 3314 | disable_overlay_breakpoints (); |
c906108c | 3315 | if (info_verbose) |
a3f17187 | 3316 | printf_unfiltered (_("Overlay debugging enabled.")); |
c906108c SS |
3317 | } |
3318 | ||
3319 | /* Function: overlay_off_command | |
3320 | A utility command to turn on overlay debugging. | |
3321 | Possibly this should be done via a set/show command. */ | |
3322 | ||
3323 | static void | |
fba45db2 | 3324 | overlay_off_command (char *args, int from_tty) |
c906108c | 3325 | { |
d874f1e2 | 3326 | overlay_debugging = ovly_off; |
1900040c | 3327 | disable_overlay_breakpoints (); |
c906108c | 3328 | if (info_verbose) |
a3f17187 | 3329 | printf_unfiltered (_("Overlay debugging disabled.")); |
c906108c SS |
3330 | } |
3331 | ||
3332 | static void | |
fba45db2 | 3333 | overlay_load_command (char *args, int from_tty) |
c906108c | 3334 | { |
e17c207e UW |
3335 | struct gdbarch *gdbarch = get_current_arch (); |
3336 | ||
3337 | if (gdbarch_overlay_update_p (gdbarch)) | |
3338 | gdbarch_overlay_update (gdbarch, NULL); | |
c906108c | 3339 | else |
8a3fe4f8 | 3340 | error (_("This target does not know how to read its overlay state.")); |
c906108c SS |
3341 | } |
3342 | ||
3343 | /* Function: overlay_command | |
3344 | A place-holder for a mis-typed command */ | |
3345 | ||
3346 | /* Command list chain containing all defined "overlay" subcommands. */ | |
3347 | struct cmd_list_element *overlaylist; | |
3348 | ||
3349 | static void | |
fba45db2 | 3350 | overlay_command (char *args, int from_tty) |
c906108c | 3351 | { |
c5aa993b | 3352 | printf_unfiltered |
c906108c SS |
3353 | ("\"overlay\" must be followed by the name of an overlay command.\n"); |
3354 | help_list (overlaylist, "overlay ", -1, gdb_stdout); | |
3355 | } | |
3356 | ||
3357 | ||
3358 | /* Target Overlays for the "Simplest" overlay manager: | |
3359 | ||
5417f6dc RM |
3360 | This is GDB's default target overlay layer. It works with the |
3361 | minimal overlay manager supplied as an example by Cygnus. The | |
1c772458 | 3362 | entry point is via a function pointer "gdbarch_overlay_update", |
5417f6dc | 3363 | so targets that use a different runtime overlay manager can |
c906108c SS |
3364 | substitute their own overlay_update function and take over the |
3365 | function pointer. | |
3366 | ||
3367 | The overlay_update function pokes around in the target's data structures | |
3368 | to see what overlays are mapped, and updates GDB's overlay mapping with | |
3369 | this information. | |
3370 | ||
3371 | In this simple implementation, the target data structures are as follows: | |
c5aa993b JM |
3372 | unsigned _novlys; /# number of overlay sections #/ |
3373 | unsigned _ovly_table[_novlys][4] = { | |
3374 | {VMA, SIZE, LMA, MAPPED}, /# one entry per overlay section #/ | |
3375 | {..., ..., ..., ...}, | |
3376 | } | |
3377 | unsigned _novly_regions; /# number of overlay regions #/ | |
3378 | unsigned _ovly_region_table[_novly_regions][3] = { | |
3379 | {VMA, SIZE, MAPPED_TO_LMA}, /# one entry per overlay region #/ | |
3380 | {..., ..., ...}, | |
3381 | } | |
c906108c SS |
3382 | These functions will attempt to update GDB's mappedness state in the |
3383 | symbol section table, based on the target's mappedness state. | |
3384 | ||
3385 | To do this, we keep a cached copy of the target's _ovly_table, and | |
3386 | attempt to detect when the cached copy is invalidated. The main | |
3387 | entry point is "simple_overlay_update(SECT), which looks up SECT in | |
3388 | the cached table and re-reads only the entry for that section from | |
3389 | the target (whenever possible). | |
3390 | */ | |
3391 | ||
3392 | /* Cached, dynamically allocated copies of the target data structures: */ | |
c5aa993b | 3393 | static unsigned (*cache_ovly_table)[4] = 0; |
c906108c | 3394 | #if 0 |
c5aa993b | 3395 | static unsigned (*cache_ovly_region_table)[3] = 0; |
c906108c | 3396 | #endif |
c5aa993b | 3397 | static unsigned cache_novlys = 0; |
c906108c | 3398 | #if 0 |
c5aa993b | 3399 | static unsigned cache_novly_regions = 0; |
c906108c SS |
3400 | #endif |
3401 | static CORE_ADDR cache_ovly_table_base = 0; | |
3402 | #if 0 | |
3403 | static CORE_ADDR cache_ovly_region_table_base = 0; | |
3404 | #endif | |
c5aa993b JM |
3405 | enum ovly_index |
3406 | { | |
3407 | VMA, SIZE, LMA, MAPPED | |
3408 | }; | |
c906108c SS |
3409 | |
3410 | /* Throw away the cached copy of _ovly_table */ | |
3411 | static void | |
fba45db2 | 3412 | simple_free_overlay_table (void) |
c906108c SS |
3413 | { |
3414 | if (cache_ovly_table) | |
b8c9b27d | 3415 | xfree (cache_ovly_table); |
c5aa993b | 3416 | cache_novlys = 0; |
c906108c SS |
3417 | cache_ovly_table = NULL; |
3418 | cache_ovly_table_base = 0; | |
3419 | } | |
3420 | ||
3421 | #if 0 | |
3422 | /* Throw away the cached copy of _ovly_region_table */ | |
3423 | static void | |
fba45db2 | 3424 | simple_free_overlay_region_table (void) |
c906108c SS |
3425 | { |
3426 | if (cache_ovly_region_table) | |
b8c9b27d | 3427 | xfree (cache_ovly_region_table); |
c5aa993b | 3428 | cache_novly_regions = 0; |
c906108c SS |
3429 | cache_ovly_region_table = NULL; |
3430 | cache_ovly_region_table_base = 0; | |
3431 | } | |
3432 | #endif | |
3433 | ||
9216df95 | 3434 | /* Read an array of ints of size SIZE from the target into a local buffer. |
c906108c SS |
3435 | Convert to host order. int LEN is number of ints */ |
3436 | static void | |
9216df95 | 3437 | read_target_long_array (CORE_ADDR memaddr, unsigned int *myaddr, |
e17a4113 | 3438 | int len, int size, enum bfd_endian byte_order) |
c906108c | 3439 | { |
34c0bd93 | 3440 | /* FIXME (alloca): Not safe if array is very large. */ |
9216df95 | 3441 | gdb_byte *buf = alloca (len * size); |
c5aa993b | 3442 | int i; |
c906108c | 3443 | |
9216df95 | 3444 | read_memory (memaddr, buf, len * size); |
c906108c | 3445 | for (i = 0; i < len; i++) |
e17a4113 | 3446 | myaddr[i] = extract_unsigned_integer (size * i + buf, size, byte_order); |
c906108c SS |
3447 | } |
3448 | ||
3449 | /* Find and grab a copy of the target _ovly_table | |
3450 | (and _novlys, which is needed for the table's size) */ | |
c5aa993b | 3451 | static int |
fba45db2 | 3452 | simple_read_overlay_table (void) |
c906108c | 3453 | { |
0d43edd1 | 3454 | struct minimal_symbol *novlys_msym, *ovly_table_msym; |
9216df95 UW |
3455 | struct gdbarch *gdbarch; |
3456 | int word_size; | |
e17a4113 | 3457 | enum bfd_endian byte_order; |
c906108c SS |
3458 | |
3459 | simple_free_overlay_table (); | |
9b27852e | 3460 | novlys_msym = lookup_minimal_symbol ("_novlys", NULL, NULL); |
0d43edd1 | 3461 | if (! novlys_msym) |
c906108c | 3462 | { |
8a3fe4f8 | 3463 | error (_("Error reading inferior's overlay table: " |
0d43edd1 | 3464 | "couldn't find `_novlys' variable\n" |
8a3fe4f8 | 3465 | "in inferior. Use `overlay manual' mode.")); |
0d43edd1 | 3466 | return 0; |
c906108c | 3467 | } |
0d43edd1 | 3468 | |
9b27852e | 3469 | ovly_table_msym = lookup_minimal_symbol ("_ovly_table", NULL, NULL); |
0d43edd1 JB |
3470 | if (! ovly_table_msym) |
3471 | { | |
8a3fe4f8 | 3472 | error (_("Error reading inferior's overlay table: couldn't find " |
0d43edd1 | 3473 | "`_ovly_table' array\n" |
8a3fe4f8 | 3474 | "in inferior. Use `overlay manual' mode.")); |
0d43edd1 JB |
3475 | return 0; |
3476 | } | |
3477 | ||
9216df95 UW |
3478 | gdbarch = get_objfile_arch (msymbol_objfile (ovly_table_msym)); |
3479 | word_size = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; | |
e17a4113 | 3480 | byte_order = gdbarch_byte_order (gdbarch); |
9216df95 | 3481 | |
e17a4113 UW |
3482 | cache_novlys = read_memory_integer (SYMBOL_VALUE_ADDRESS (novlys_msym), |
3483 | 4, byte_order); | |
0d43edd1 JB |
3484 | cache_ovly_table |
3485 | = (void *) xmalloc (cache_novlys * sizeof (*cache_ovly_table)); | |
3486 | cache_ovly_table_base = SYMBOL_VALUE_ADDRESS (ovly_table_msym); | |
3487 | read_target_long_array (cache_ovly_table_base, | |
777ea8f1 | 3488 | (unsigned int *) cache_ovly_table, |
e17a4113 | 3489 | cache_novlys * 4, word_size, byte_order); |
0d43edd1 | 3490 | |
c5aa993b | 3491 | return 1; /* SUCCESS */ |
c906108c SS |
3492 | } |
3493 | ||
3494 | #if 0 | |
3495 | /* Find and grab a copy of the target _ovly_region_table | |
3496 | (and _novly_regions, which is needed for the table's size) */ | |
c5aa993b | 3497 | static int |
fba45db2 | 3498 | simple_read_overlay_region_table (void) |
c906108c SS |
3499 | { |
3500 | struct minimal_symbol *msym; | |
e17a4113 UW |
3501 | struct gdbarch *gdbarch; |
3502 | int word_size; | |
3503 | enum bfd_endian byte_order; | |
c906108c SS |
3504 | |
3505 | simple_free_overlay_region_table (); | |
9b27852e | 3506 | msym = lookup_minimal_symbol ("_novly_regions", NULL, NULL); |
e17a4113 | 3507 | if (msym == NULL) |
c5aa993b | 3508 | return 0; /* failure */ |
e17a4113 UW |
3509 | |
3510 | gdbarch = get_objfile_arch (msymbol_objfile (msym)); | |
3511 | word_size = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; | |
3512 | byte_order = gdbarch_byte_order (gdbarch); | |
3513 | ||
3514 | cache_novly_regions = read_memory_integer (SYMBOL_VALUE_ADDRESS (msym), | |
3515 | 4, byte_order); | |
3516 | ||
c906108c SS |
3517 | cache_ovly_region_table = (void *) xmalloc (cache_novly_regions * 12); |
3518 | if (cache_ovly_region_table != NULL) | |
3519 | { | |
9b27852e | 3520 | msym = lookup_minimal_symbol ("_ovly_region_table", NULL, NULL); |
c906108c SS |
3521 | if (msym != NULL) |
3522 | { | |
3523 | cache_ovly_region_table_base = SYMBOL_VALUE_ADDRESS (msym); | |
c5aa993b | 3524 | read_target_long_array (cache_ovly_region_table_base, |
777ea8f1 | 3525 | (unsigned int *) cache_ovly_region_table, |
e17a4113 UW |
3526 | cache_novly_regions * 3, |
3527 | word_size, byte_order); | |
c906108c | 3528 | } |
c5aa993b JM |
3529 | else |
3530 | return 0; /* failure */ | |
c906108c | 3531 | } |
c5aa993b JM |
3532 | else |
3533 | return 0; /* failure */ | |
3534 | return 1; /* SUCCESS */ | |
c906108c SS |
3535 | } |
3536 | #endif | |
3537 | ||
5417f6dc | 3538 | /* Function: simple_overlay_update_1 |
c906108c SS |
3539 | A helper function for simple_overlay_update. Assuming a cached copy |
3540 | of _ovly_table exists, look through it to find an entry whose vma, | |
3541 | lma and size match those of OSECT. Re-read the entry and make sure | |
3542 | it still matches OSECT (else the table may no longer be valid). | |
3543 | Set OSECT's mapped state to match the entry. Return: 1 for | |
3544 | success, 0 for failure. */ | |
3545 | ||
3546 | static int | |
fba45db2 | 3547 | simple_overlay_update_1 (struct obj_section *osect) |
c906108c SS |
3548 | { |
3549 | int i, size; | |
fbd35540 MS |
3550 | bfd *obfd = osect->objfile->obfd; |
3551 | asection *bsect = osect->the_bfd_section; | |
9216df95 UW |
3552 | struct gdbarch *gdbarch = get_objfile_arch (osect->objfile); |
3553 | int word_size = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; | |
e17a4113 | 3554 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
c906108c | 3555 | |
2c500098 | 3556 | size = bfd_get_section_size (osect->the_bfd_section); |
c906108c | 3557 | for (i = 0; i < cache_novlys; i++) |
fbd35540 MS |
3558 | if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect) |
3559 | && cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect) | |
3560 | /* && cache_ovly_table[i][SIZE] == size */ ) | |
c906108c | 3561 | { |
9216df95 UW |
3562 | read_target_long_array (cache_ovly_table_base + i * word_size, |
3563 | (unsigned int *) cache_ovly_table[i], | |
e17a4113 | 3564 | 4, word_size, byte_order); |
fbd35540 MS |
3565 | if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect) |
3566 | && cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect) | |
3567 | /* && cache_ovly_table[i][SIZE] == size */ ) | |
c906108c SS |
3568 | { |
3569 | osect->ovly_mapped = cache_ovly_table[i][MAPPED]; | |
3570 | return 1; | |
3571 | } | |
fbd35540 | 3572 | else /* Warning! Warning! Target's ovly table has changed! */ |
c906108c SS |
3573 | return 0; |
3574 | } | |
3575 | return 0; | |
3576 | } | |
3577 | ||
3578 | /* Function: simple_overlay_update | |
5417f6dc RM |
3579 | If OSECT is NULL, then update all sections' mapped state |
3580 | (after re-reading the entire target _ovly_table). | |
3581 | If OSECT is non-NULL, then try to find a matching entry in the | |
c906108c | 3582 | cached ovly_table and update only OSECT's mapped state. |
5417f6dc | 3583 | If a cached entry can't be found or the cache isn't valid, then |
c906108c SS |
3584 | re-read the entire cache, and go ahead and update all sections. */ |
3585 | ||
1c772458 | 3586 | void |
fba45db2 | 3587 | simple_overlay_update (struct obj_section *osect) |
c906108c | 3588 | { |
c5aa993b | 3589 | struct objfile *objfile; |
c906108c SS |
3590 | |
3591 | /* Were we given an osect to look up? NULL means do all of them. */ | |
3592 | if (osect) | |
3593 | /* Have we got a cached copy of the target's overlay table? */ | |
3594 | if (cache_ovly_table != NULL) | |
3595 | /* Does its cached location match what's currently in the symtab? */ | |
c5aa993b | 3596 | if (cache_ovly_table_base == |
9b27852e | 3597 | SYMBOL_VALUE_ADDRESS (lookup_minimal_symbol ("_ovly_table", NULL, NULL))) |
c906108c SS |
3598 | /* Then go ahead and try to look up this single section in the cache */ |
3599 | if (simple_overlay_update_1 (osect)) | |
3600 | /* Found it! We're done. */ | |
3601 | return; | |
3602 | ||
3603 | /* Cached table no good: need to read the entire table anew. | |
3604 | Or else we want all the sections, in which case it's actually | |
3605 | more efficient to read the whole table in one block anyway. */ | |
3606 | ||
0d43edd1 JB |
3607 | if (! simple_read_overlay_table ()) |
3608 | return; | |
3609 | ||
c906108c SS |
3610 | /* Now may as well update all sections, even if only one was requested. */ |
3611 | ALL_OBJSECTIONS (objfile, osect) | |
714835d5 | 3612 | if (section_is_overlay (osect)) |
c5aa993b JM |
3613 | { |
3614 | int i, size; | |
fbd35540 MS |
3615 | bfd *obfd = osect->objfile->obfd; |
3616 | asection *bsect = osect->the_bfd_section; | |
c5aa993b | 3617 | |
2c500098 | 3618 | size = bfd_get_section_size (bsect); |
c5aa993b | 3619 | for (i = 0; i < cache_novlys; i++) |
fbd35540 MS |
3620 | if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect) |
3621 | && cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect) | |
3622 | /* && cache_ovly_table[i][SIZE] == size */ ) | |
3623 | { /* obj_section matches i'th entry in ovly_table */ | |
c5aa993b JM |
3624 | osect->ovly_mapped = cache_ovly_table[i][MAPPED]; |
3625 | break; /* finished with inner for loop: break out */ | |
3626 | } | |
3627 | } | |
c906108c SS |
3628 | } |
3629 | ||
086df311 DJ |
3630 | /* Set the output sections and output offsets for section SECTP in |
3631 | ABFD. The relocation code in BFD will read these offsets, so we | |
3632 | need to be sure they're initialized. We map each section to itself, | |
3633 | with no offset; this means that SECTP->vma will be honored. */ | |
3634 | ||
3635 | static void | |
3636 | symfile_dummy_outputs (bfd *abfd, asection *sectp, void *dummy) | |
3637 | { | |
3638 | sectp->output_section = sectp; | |
3639 | sectp->output_offset = 0; | |
3640 | } | |
3641 | ||
ac8035ab TG |
3642 | /* Default implementation for sym_relocate. */ |
3643 | ||
3644 | ||
3645 | bfd_byte * | |
3646 | default_symfile_relocate (struct objfile *objfile, asection *sectp, | |
3647 | bfd_byte *buf) | |
3648 | { | |
3649 | bfd *abfd = objfile->obfd; | |
3650 | ||
3651 | /* We're only interested in sections with relocation | |
3652 | information. */ | |
3653 | if ((sectp->flags & SEC_RELOC) == 0) | |
3654 | return NULL; | |
3655 | ||
3656 | /* We will handle section offsets properly elsewhere, so relocate as if | |
3657 | all sections begin at 0. */ | |
3658 | bfd_map_over_sections (abfd, symfile_dummy_outputs, NULL); | |
3659 | ||
3660 | return bfd_simple_get_relocated_section_contents (abfd, sectp, buf, NULL); | |
3661 | } | |
3662 | ||
086df311 DJ |
3663 | /* Relocate the contents of a debug section SECTP in ABFD. The |
3664 | contents are stored in BUF if it is non-NULL, or returned in a | |
3665 | malloc'd buffer otherwise. | |
3666 | ||
3667 | For some platforms and debug info formats, shared libraries contain | |
3668 | relocations against the debug sections (particularly for DWARF-2; | |
3669 | one affected platform is PowerPC GNU/Linux, although it depends on | |
3670 | the version of the linker in use). Also, ELF object files naturally | |
3671 | have unresolved relocations for their debug sections. We need to apply | |
065a2c74 PA |
3672 | the relocations in order to get the locations of symbols correct. |
3673 | Another example that may require relocation processing, is the | |
3674 | DWARF-2 .eh_frame section in .o files, although it isn't strictly a | |
3675 | debug section. */ | |
086df311 DJ |
3676 | |
3677 | bfd_byte * | |
ac8035ab TG |
3678 | symfile_relocate_debug_section (struct objfile *objfile, |
3679 | asection *sectp, bfd_byte *buf) | |
086df311 | 3680 | { |
ac8035ab | 3681 | gdb_assert (objfile->sf->sym_relocate); |
086df311 | 3682 | |
ac8035ab | 3683 | return (*objfile->sf->sym_relocate) (objfile, sectp, buf); |
086df311 | 3684 | } |
c906108c | 3685 | |
31d99776 DJ |
3686 | struct symfile_segment_data * |
3687 | get_symfile_segment_data (bfd *abfd) | |
3688 | { | |
3689 | struct sym_fns *sf = find_sym_fns (abfd); | |
3690 | ||
3691 | if (sf == NULL) | |
3692 | return NULL; | |
3693 | ||
3694 | return sf->sym_segments (abfd); | |
3695 | } | |
3696 | ||
3697 | void | |
3698 | free_symfile_segment_data (struct symfile_segment_data *data) | |
3699 | { | |
3700 | xfree (data->segment_bases); | |
3701 | xfree (data->segment_sizes); | |
3702 | xfree (data->segment_info); | |
3703 | xfree (data); | |
3704 | } | |
3705 | ||
28c32713 JB |
3706 | |
3707 | /* Given: | |
3708 | - DATA, containing segment addresses from the object file ABFD, and | |
3709 | the mapping from ABFD's sections onto the segments that own them, | |
3710 | and | |
3711 | - SEGMENT_BASES[0 .. NUM_SEGMENT_BASES - 1], holding the actual | |
3712 | segment addresses reported by the target, | |
3713 | store the appropriate offsets for each section in OFFSETS. | |
3714 | ||
3715 | If there are fewer entries in SEGMENT_BASES than there are segments | |
3716 | in DATA, then apply SEGMENT_BASES' last entry to all the segments. | |
3717 | ||
8d385431 DJ |
3718 | If there are more entries, then ignore the extra. The target may |
3719 | not be able to distinguish between an empty data segment and a | |
3720 | missing data segment; a missing text segment is less plausible. */ | |
31d99776 DJ |
3721 | int |
3722 | symfile_map_offsets_to_segments (bfd *abfd, struct symfile_segment_data *data, | |
3723 | struct section_offsets *offsets, | |
3724 | int num_segment_bases, | |
3725 | const CORE_ADDR *segment_bases) | |
3726 | { | |
3727 | int i; | |
3728 | asection *sect; | |
3729 | ||
28c32713 JB |
3730 | /* It doesn't make sense to call this function unless you have some |
3731 | segment base addresses. */ | |
202b96c1 | 3732 | gdb_assert (num_segment_bases > 0); |
28c32713 | 3733 | |
31d99776 DJ |
3734 | /* If we do not have segment mappings for the object file, we |
3735 | can not relocate it by segments. */ | |
3736 | gdb_assert (data != NULL); | |
3737 | gdb_assert (data->num_segments > 0); | |
3738 | ||
31d99776 DJ |
3739 | for (i = 0, sect = abfd->sections; sect != NULL; i++, sect = sect->next) |
3740 | { | |
31d99776 DJ |
3741 | int which = data->segment_info[i]; |
3742 | ||
28c32713 JB |
3743 | gdb_assert (0 <= which && which <= data->num_segments); |
3744 | ||
3745 | /* Don't bother computing offsets for sections that aren't | |
3746 | loaded as part of any segment. */ | |
3747 | if (! which) | |
3748 | continue; | |
3749 | ||
3750 | /* Use the last SEGMENT_BASES entry as the address of any extra | |
3751 | segments mentioned in DATA->segment_info. */ | |
31d99776 | 3752 | if (which > num_segment_bases) |
28c32713 | 3753 | which = num_segment_bases; |
31d99776 | 3754 | |
28c32713 JB |
3755 | offsets->offsets[i] = (segment_bases[which - 1] |
3756 | - data->segment_bases[which - 1]); | |
31d99776 DJ |
3757 | } |
3758 | ||
3759 | return 1; | |
3760 | } | |
3761 | ||
3762 | static void | |
3763 | symfile_find_segment_sections (struct objfile *objfile) | |
3764 | { | |
3765 | bfd *abfd = objfile->obfd; | |
3766 | int i; | |
3767 | asection *sect; | |
3768 | struct symfile_segment_data *data; | |
3769 | ||
3770 | data = get_symfile_segment_data (objfile->obfd); | |
3771 | if (data == NULL) | |
3772 | return; | |
3773 | ||
3774 | if (data->num_segments != 1 && data->num_segments != 2) | |
3775 | { | |
3776 | free_symfile_segment_data (data); | |
3777 | return; | |
3778 | } | |
3779 | ||
3780 | for (i = 0, sect = abfd->sections; sect != NULL; i++, sect = sect->next) | |
3781 | { | |
3782 | CORE_ADDR vma; | |
3783 | int which = data->segment_info[i]; | |
3784 | ||
3785 | if (which == 1) | |
3786 | { | |
3787 | if (objfile->sect_index_text == -1) | |
3788 | objfile->sect_index_text = sect->index; | |
3789 | ||
3790 | if (objfile->sect_index_rodata == -1) | |
3791 | objfile->sect_index_rodata = sect->index; | |
3792 | } | |
3793 | else if (which == 2) | |
3794 | { | |
3795 | if (objfile->sect_index_data == -1) | |
3796 | objfile->sect_index_data = sect->index; | |
3797 | ||
3798 | if (objfile->sect_index_bss == -1) | |
3799 | objfile->sect_index_bss = sect->index; | |
3800 | } | |
3801 | } | |
3802 | ||
3803 | free_symfile_segment_data (data); | |
3804 | } | |
3805 | ||
c906108c | 3806 | void |
fba45db2 | 3807 | _initialize_symfile (void) |
c906108c SS |
3808 | { |
3809 | struct cmd_list_element *c; | |
c5aa993b | 3810 | |
1a966eab AC |
3811 | c = add_cmd ("symbol-file", class_files, symbol_file_command, _("\ |
3812 | Load symbol table from executable file FILE.\n\ | |
c906108c | 3813 | The `file' command can also load symbol tables, as well as setting the file\n\ |
1a966eab | 3814 | to execute."), &cmdlist); |
5ba2abeb | 3815 | set_cmd_completer (c, filename_completer); |
c906108c | 3816 | |
1a966eab | 3817 | c = add_cmd ("add-symbol-file", class_files, add_symbol_file_command, _("\ |
5b96932b | 3818 | Load symbols from FILE, assuming FILE has been dynamically loaded.\n\ |
1a966eab | 3819 | Usage: add-symbol-file FILE ADDR [-s <SECT> <SECT_ADDR> -s <SECT> <SECT_ADDR> ...]\n\ |
2acceee2 | 3820 | ADDR is the starting address of the file's text.\n\ |
db162d44 EZ |
3821 | The optional arguments are section-name section-address pairs and\n\ |
3822 | should be specified if the data and bss segments are not contiguous\n\ | |
1a966eab | 3823 | with the text. SECT is a section name to be loaded at SECT_ADDR."), |
c906108c | 3824 | &cmdlist); |
5ba2abeb | 3825 | set_cmd_completer (c, filename_completer); |
c906108c | 3826 | |
1a966eab AC |
3827 | c = add_cmd ("load", class_files, load_command, _("\ |
3828 | Dynamically load FILE into the running program, and record its symbols\n\ | |
1986bccd AS |
3829 | for access from GDB.\n\ |
3830 | A load OFFSET may also be given."), &cmdlist); | |
5ba2abeb | 3831 | set_cmd_completer (c, filename_completer); |
c906108c | 3832 | |
5bf193a2 AC |
3833 | add_setshow_boolean_cmd ("symbol-reloading", class_support, |
3834 | &symbol_reloading, _("\ | |
3835 | Set dynamic symbol table reloading multiple times in one run."), _("\ | |
3836 | Show dynamic symbol table reloading multiple times in one run."), NULL, | |
3837 | NULL, | |
920d2a44 | 3838 | show_symbol_reloading, |
5bf193a2 | 3839 | &setlist, &showlist); |
c906108c | 3840 | |
c5aa993b | 3841 | add_prefix_cmd ("overlay", class_support, overlay_command, |
1bedd215 | 3842 | _("Commands for debugging overlays."), &overlaylist, |
c906108c SS |
3843 | "overlay ", 0, &cmdlist); |
3844 | ||
3845 | add_com_alias ("ovly", "overlay", class_alias, 1); | |
3846 | add_com_alias ("ov", "overlay", class_alias, 1); | |
3847 | ||
c5aa993b | 3848 | add_cmd ("map-overlay", class_support, map_overlay_command, |
1a966eab | 3849 | _("Assert that an overlay section is mapped."), &overlaylist); |
c906108c | 3850 | |
c5aa993b | 3851 | add_cmd ("unmap-overlay", class_support, unmap_overlay_command, |
1a966eab | 3852 | _("Assert that an overlay section is unmapped."), &overlaylist); |
c906108c | 3853 | |
c5aa993b | 3854 | add_cmd ("list-overlays", class_support, list_overlays_command, |
1a966eab | 3855 | _("List mappings of overlay sections."), &overlaylist); |
c906108c | 3856 | |
c5aa993b | 3857 | add_cmd ("manual", class_support, overlay_manual_command, |
1a966eab | 3858 | _("Enable overlay debugging."), &overlaylist); |
c5aa993b | 3859 | add_cmd ("off", class_support, overlay_off_command, |
1a966eab | 3860 | _("Disable overlay debugging."), &overlaylist); |
c5aa993b | 3861 | add_cmd ("auto", class_support, overlay_auto_command, |
1a966eab | 3862 | _("Enable automatic overlay debugging."), &overlaylist); |
c5aa993b | 3863 | add_cmd ("load-target", class_support, overlay_load_command, |
1a966eab | 3864 | _("Read the overlay mapping state from the target."), &overlaylist); |
c906108c SS |
3865 | |
3866 | /* Filename extension to source language lookup table: */ | |
3867 | init_filename_language_table (); | |
26c41df3 AC |
3868 | add_setshow_string_noescape_cmd ("extension-language", class_files, |
3869 | &ext_args, _("\ | |
3870 | Set mapping between filename extension and source language."), _("\ | |
3871 | Show mapping between filename extension and source language."), _("\ | |
3872 | Usage: set extension-language .foo bar"), | |
3873 | set_ext_lang_command, | |
920d2a44 | 3874 | show_ext_args, |
26c41df3 | 3875 | &setlist, &showlist); |
c906108c | 3876 | |
c5aa993b | 3877 | add_info ("extensions", info_ext_lang_command, |
1bedd215 | 3878 | _("All filename extensions associated with a source language.")); |
917317f4 | 3879 | |
525226b5 AC |
3880 | add_setshow_optional_filename_cmd ("debug-file-directory", class_support, |
3881 | &debug_file_directory, _("\ | |
24ddea62 JK |
3882 | Set the directories where separate debug symbols are searched for."), _("\ |
3883 | Show the directories where separate debug symbols are searched for."), _("\ | |
525226b5 AC |
3884 | Separate debug symbols are first searched for in the same\n\ |
3885 | directory as the binary, then in the `" DEBUG_SUBDIRECTORY "' subdirectory,\n\ | |
3886 | and lastly at the path of the directory of the binary with\n\ | |
24ddea62 | 3887 | each global debug-file-directory component prepended."), |
525226b5 | 3888 | NULL, |
920d2a44 | 3889 | show_debug_file_directory, |
525226b5 | 3890 | &setlist, &showlist); |
c906108c | 3891 | } |