Commit | Line | Data |
---|---|---|
be4d1333 | 1 | /* Generate a core file for the inferior process. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
804e0f53 | 4 | Free Software Foundation, Inc. |
be4d1333 MS |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
be4d1333 MS |
22 | |
23 | #include "defs.h" | |
d3420b2f MK |
24 | #include "elf-bfd.h" |
25 | #include "infcall.h" | |
be4d1333 MS |
26 | #include "inferior.h" |
27 | #include "gdbcore.h" | |
be4d1333 | 28 | #include "objfiles.h" |
d3420b2f MK |
29 | #include "symfile.h" |
30 | ||
31 | #include "cli/cli-decode.h" | |
be4d1333 | 32 | |
d3420b2f | 33 | #include "gdb_assert.h" |
be4d1333 | 34 | |
804e0f53 DJ |
35 | /* The largest amount of memory to read from the target at once. We |
36 | must throttle it to limit the amount of memory used by GDB during | |
37 | generate-core-file for programs with large resident data. */ | |
38 | #define MAX_COPY_BYTES (1024 * 1024) | |
39 | ||
d3420b2f MK |
40 | static char *default_gcore_target (void); |
41 | static enum bfd_architecture default_gcore_arch (void); | |
42 | static unsigned long default_gcore_mach (void); | |
43 | static int gcore_memory_sections (bfd *); | |
44 | ||
45 | /* Generate a core file from the inferior process. */ | |
be4d1333 MS |
46 | |
47 | static void | |
48 | gcore_command (char *args, int from_tty) | |
49 | { | |
50 | struct cleanup *old_chain; | |
51 | char *corefilename, corefilename_buffer[40]; | |
356ae49d | 52 | asection *note_sec = NULL; |
be4d1333 MS |
53 | bfd *obfd; |
54 | void *note_data = NULL; | |
55 | int note_size = 0; | |
56 | ||
57 | /* No use generating a corefile without a target process. */ | |
d3420b2f | 58 | if (!target_has_execution) |
be4d1333 MS |
59 | noprocess (); |
60 | ||
61 | if (args && *args) | |
62 | corefilename = args; | |
63 | else | |
64 | { | |
65 | /* Default corefile name is "core.PID". */ | |
66 | sprintf (corefilename_buffer, "core.%d", PIDGET (inferior_ptid)); | |
67 | corefilename = corefilename_buffer; | |
68 | } | |
69 | ||
70 | if (info_verbose) | |
cbb83bd1 | 71 | fprintf_filtered (gdb_stdout, |
be4d1333 MS |
72 | "Opening corefile '%s' for output.\n", corefilename); |
73 | ||
d3420b2f MK |
74 | /* Open the output file. */ |
75 | obfd = bfd_openw (corefilename, default_gcore_target ()); | |
76 | if (!obfd) | |
8a3fe4f8 | 77 | error (_("Failed to open '%s' for output."), corefilename); |
be4d1333 | 78 | |
d3420b2f | 79 | /* Need a cleanup that will close the file (FIXME: delete it?). */ |
be4d1333 MS |
80 | old_chain = make_cleanup_bfd_close (obfd); |
81 | ||
82 | bfd_set_format (obfd, bfd_core); | |
83 | bfd_set_arch_mach (obfd, default_gcore_arch (), default_gcore_mach ()); | |
84 | ||
d3420b2f MK |
85 | /* An external target method must build the notes section. */ |
86 | note_data = target_make_corefile_notes (obfd, ¬e_size); | |
be4d1333 | 87 | |
d3420b2f | 88 | /* Create the note section. */ |
be4d1333 MS |
89 | if (note_data != NULL && note_size != 0) |
90 | { | |
d3420b2f MK |
91 | note_sec = bfd_make_section_anyway (obfd, "note0"); |
92 | if (note_sec == NULL) | |
8a3fe4f8 | 93 | error (_("Failed to create 'note' section for corefile: %s"), |
be4d1333 MS |
94 | bfd_errmsg (bfd_get_error ())); |
95 | ||
96 | bfd_set_section_vma (obfd, note_sec, 0); | |
cbb83bd1 | 97 | bfd_set_section_flags (obfd, note_sec, |
be4d1333 MS |
98 | SEC_HAS_CONTENTS | SEC_READONLY | SEC_ALLOC); |
99 | bfd_set_section_alignment (obfd, note_sec, 0); | |
100 | bfd_set_section_size (obfd, note_sec, note_size); | |
101 | } | |
102 | ||
d3420b2f | 103 | /* Now create the memory/load sections. */ |
be4d1333 | 104 | if (gcore_memory_sections (obfd) == 0) |
8a3fe4f8 | 105 | error (_("gcore: failed to get corefile memory sections from target.")); |
be4d1333 | 106 | |
d3420b2f | 107 | /* Write out the contents of the note section. */ |
be4d1333 MS |
108 | if (note_data != NULL && note_size != 0) |
109 | { | |
110 | if (!bfd_set_section_contents (obfd, note_sec, note_data, 0, note_size)) | |
8a3fe4f8 | 111 | warning (_("writing note section (%s)"), bfd_errmsg (bfd_get_error ())); |
be4d1333 MS |
112 | } |
113 | ||
d3420b2f MK |
114 | /* Succeeded. */ |
115 | fprintf_filtered (gdb_stdout, "Saved corefile %s\n", corefilename); | |
be4d1333 | 116 | |
d3420b2f | 117 | /* Clean-ups will close the output file and free malloc memory. */ |
be4d1333 MS |
118 | do_cleanups (old_chain); |
119 | return; | |
120 | } | |
121 | ||
122 | static unsigned long | |
123 | default_gcore_mach (void) | |
124 | { | |
d3420b2f | 125 | #if 1 /* See if this even matters... */ |
6dbdc4a3 MS |
126 | return 0; |
127 | #else | |
1143fffb UW |
128 | |
129 | const struct bfd_arch_info *bfdarch = gdbarch_bfd_arch_info (current_gdbarch); | |
be4d1333 MS |
130 | |
131 | if (bfdarch != NULL) | |
132 | return bfdarch->mach; | |
be4d1333 | 133 | if (exec_bfd == NULL) |
8a3fe4f8 | 134 | error (_("Can't find default bfd machine type (need execfile).")); |
be4d1333 MS |
135 | |
136 | return bfd_get_mach (exec_bfd); | |
6dbdc4a3 | 137 | #endif /* 1 */ |
be4d1333 MS |
138 | } |
139 | ||
140 | static enum bfd_architecture | |
141 | default_gcore_arch (void) | |
142 | { | |
1143fffb UW |
143 | const struct bfd_arch_info * bfdarch = gdbarch_bfd_arch_info |
144 | (current_gdbarch); | |
be4d1333 MS |
145 | |
146 | if (bfdarch != NULL) | |
147 | return bfdarch->arch; | |
be4d1333 | 148 | if (exec_bfd == NULL) |
8a3fe4f8 | 149 | error (_("Can't find bfd architecture for corefile (need execfile).")); |
be4d1333 MS |
150 | |
151 | return bfd_get_arch (exec_bfd); | |
152 | } | |
153 | ||
154 | static char * | |
155 | default_gcore_target (void) | |
156 | { | |
d3420b2f | 157 | /* FIXME: This may only work for ELF targets. */ |
be4d1333 | 158 | if (exec_bfd == NULL) |
6dbdc4a3 MS |
159 | return NULL; |
160 | else | |
161 | return bfd_get_target (exec_bfd); | |
be4d1333 MS |
162 | } |
163 | ||
d3420b2f MK |
164 | /* Derive a reasonable stack segment by unwinding the target stack, |
165 | and store its limits in *BOTTOM and *TOP. Return non-zero if | |
166 | successful. */ | |
be4d1333 | 167 | |
cbb83bd1 | 168 | static int |
69db8bae | 169 | derive_stack_segment (bfd_vma *bottom, bfd_vma *top) |
be4d1333 | 170 | { |
be4d1333 MS |
171 | struct frame_info *fi, *tmp_fi; |
172 | ||
d3420b2f MK |
173 | gdb_assert (bottom); |
174 | gdb_assert (top); | |
be4d1333 | 175 | |
d3420b2f | 176 | /* Can't succeed without stack and registers. */ |
be4d1333 | 177 | if (!target_has_stack || !target_has_registers) |
d3420b2f | 178 | return 0; |
be4d1333 | 179 | |
d3420b2f MK |
180 | /* Can't succeed without current frame. */ |
181 | fi = get_current_frame (); | |
182 | if (fi == NULL) | |
183 | return 0; | |
be4d1333 | 184 | |
d3420b2f | 185 | /* Save frame pointer of TOS frame. */ |
8d357cca | 186 | *top = get_frame_base (fi); |
d3420b2f | 187 | /* If current stack pointer is more "inner", use that instead. */ |
4d1e7dd1 | 188 | if (gdbarch_inner_than (current_gdbarch, get_frame_sp (fi), *top)) |
fb4443d8 | 189 | *top = get_frame_sp (fi); |
be4d1333 | 190 | |
d3420b2f | 191 | /* Find prev-most frame. */ |
be4d1333 MS |
192 | while ((tmp_fi = get_prev_frame (fi)) != NULL) |
193 | fi = tmp_fi; | |
194 | ||
d3420b2f | 195 | /* Save frame pointer of prev-most frame. */ |
8d357cca | 196 | *bottom = get_frame_base (fi); |
be4d1333 | 197 | |
d3420b2f MK |
198 | /* Now canonicalize their order, so that BOTTOM is a lower address |
199 | (as opposed to a lower stack frame). */ | |
be4d1333 MS |
200 | if (*bottom > *top) |
201 | { | |
d3420b2f MK |
202 | bfd_vma tmp_vma; |
203 | ||
be4d1333 MS |
204 | tmp_vma = *top; |
205 | *top = *bottom; | |
206 | *bottom = tmp_vma; | |
207 | } | |
208 | ||
d3420b2f | 209 | return 1; |
be4d1333 MS |
210 | } |
211 | ||
d3420b2f MK |
212 | /* Derive a reasonable heap segment for ABFD by looking at sbrk and |
213 | the static data sections. Store its limits in *BOTTOM and *TOP. | |
214 | Return non-zero if successful. */ | |
be4d1333 | 215 | |
cbb83bd1 | 216 | static int |
69db8bae | 217 | derive_heap_segment (bfd *abfd, bfd_vma *bottom, bfd_vma *top) |
be4d1333 MS |
218 | { |
219 | bfd_vma top_of_data_memory = 0; | |
220 | bfd_vma top_of_heap = 0; | |
221 | bfd_size_type sec_size; | |
222 | struct value *zero, *sbrk; | |
223 | bfd_vma sec_vaddr; | |
224 | asection *sec; | |
225 | ||
d3420b2f MK |
226 | gdb_assert (bottom); |
227 | gdb_assert (top); | |
be4d1333 | 228 | |
d3420b2f MK |
229 | /* This function depends on being able to call a function in the |
230 | inferior. */ | |
be4d1333 | 231 | if (!target_has_execution) |
d3420b2f MK |
232 | return 0; |
233 | ||
234 | /* The following code assumes that the link map is arranged as | |
235 | follows (low to high addresses): | |
be4d1333 | 236 | |
d3420b2f MK |
237 | --------------------------------- |
238 | | text sections | | |
239 | --------------------------------- | |
240 | | data sections (including bss) | | |
241 | --------------------------------- | |
242 | | heap | | |
243 | --------------------------------- */ | |
be4d1333 MS |
244 | |
245 | for (sec = abfd->sections; sec; sec = sec->next) | |
246 | { | |
d3420b2f MK |
247 | if (bfd_get_section_flags (abfd, sec) & SEC_DATA |
248 | || strcmp (".bss", bfd_section_name (abfd, sec)) == 0) | |
be4d1333 MS |
249 | { |
250 | sec_vaddr = bfd_get_section_vma (abfd, sec); | |
2c500098 | 251 | sec_size = bfd_get_section_size (sec); |
be4d1333 MS |
252 | if (sec_vaddr + sec_size > top_of_data_memory) |
253 | top_of_data_memory = sec_vaddr + sec_size; | |
254 | } | |
255 | } | |
d3420b2f | 256 | |
be4d1333 | 257 | /* Now get the top-of-heap by calling sbrk in the inferior. */ |
20fe79c8 MS |
258 | if (lookup_minimal_symbol ("sbrk", NULL, NULL) != NULL) |
259 | { | |
d3420b2f MK |
260 | sbrk = find_function_in_inferior ("sbrk"); |
261 | if (sbrk == NULL) | |
20fe79c8 MS |
262 | return 0; |
263 | } | |
264 | else if (lookup_minimal_symbol ("_sbrk", NULL, NULL) != NULL) | |
265 | { | |
d3420b2f MK |
266 | sbrk = find_function_in_inferior ("_sbrk"); |
267 | if (sbrk == NULL) | |
20fe79c8 MS |
268 | return 0; |
269 | } | |
270 | else | |
be4d1333 | 271 | return 0; |
20fe79c8 | 272 | |
d3420b2f MK |
273 | zero = value_from_longest (builtin_type_int, 0); |
274 | gdb_assert (zero); | |
275 | sbrk = call_function_by_hand (sbrk, 1, &zero); | |
276 | if (sbrk == NULL) | |
be4d1333 MS |
277 | return 0; |
278 | top_of_heap = value_as_long (sbrk); | |
279 | ||
d3420b2f | 280 | /* Return results. */ |
be4d1333 MS |
281 | if (top_of_heap > top_of_data_memory) |
282 | { | |
283 | *bottom = top_of_data_memory; | |
284 | *top = top_of_heap; | |
d3420b2f | 285 | return 1; |
be4d1333 | 286 | } |
d3420b2f MK |
287 | |
288 | /* No additional heap space needs to be saved. */ | |
289 | return 0; | |
be4d1333 MS |
290 | } |
291 | ||
be4d1333 MS |
292 | static void |
293 | make_output_phdrs (bfd *obfd, asection *osec, void *ignored) | |
294 | { | |
295 | int p_flags = 0; | |
296 | int p_type; | |
297 | ||
298 | /* FIXME: these constants may only be applicable for ELF. */ | |
20fe79c8 | 299 | if (strncmp (bfd_section_name (obfd, osec), "load", 4) == 0) |
be4d1333 MS |
300 | p_type = PT_LOAD; |
301 | else | |
302 | p_type = PT_NOTE; | |
303 | ||
304 | p_flags |= PF_R; /* Segment is readable. */ | |
305 | if (!(bfd_get_section_flags (obfd, osec) & SEC_READONLY)) | |
306 | p_flags |= PF_W; /* Segment is writable. */ | |
307 | if (bfd_get_section_flags (obfd, osec) & SEC_CODE) | |
308 | p_flags |= PF_X; /* Segment is executable. */ | |
309 | ||
d3420b2f | 310 | bfd_record_phdr (obfd, p_type, 1, p_flags, 0, 0, 0, 0, 1, &osec); |
be4d1333 MS |
311 | } |
312 | ||
cbb83bd1 RM |
313 | static int |
314 | gcore_create_callback (CORE_ADDR vaddr, unsigned long size, | |
315 | int read, int write, int exec, void *data) | |
be4d1333 | 316 | { |
cbb83bd1 | 317 | bfd *obfd = data; |
be4d1333 | 318 | asection *osec; |
cbb83bd1 RM |
319 | flagword flags = SEC_ALLOC | SEC_HAS_CONTENTS | SEC_LOAD; |
320 | ||
86fbe6cc EZ |
321 | /* If the memory segment has no permissions set, ignore it, otherwise |
322 | when we later try to access it for read/write, we'll get an error | |
323 | or jam the kernel. */ | |
324 | if (read == 0 && write == 0 && exec == 0) | |
325 | { | |
326 | if (info_verbose) | |
327 | { | |
328 | fprintf_filtered (gdb_stdout, "Ignore segment, %s bytes at 0x%s\n", | |
329 | paddr_d (size), paddr_nz (vaddr)); | |
330 | } | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
cbb83bd1 RM |
335 | if (write == 0) |
336 | { | |
337 | /* See if this region of memory lies inside a known file on disk. | |
338 | If so, we can avoid copying its contents by clearing SEC_LOAD. */ | |
339 | struct objfile *objfile; | |
340 | struct obj_section *objsec; | |
341 | ||
342 | ALL_OBJSECTIONS (objfile, objsec) | |
343 | { | |
344 | bfd *abfd = objfile->obfd; | |
345 | asection *asec = objsec->the_bfd_section; | |
346 | bfd_vma align = (bfd_vma) 1 << bfd_get_section_alignment (abfd, | |
347 | asec); | |
348 | bfd_vma start = objsec->addr & -align; | |
349 | bfd_vma end = (objsec->endaddr + align - 1) & -align; | |
350 | /* Match if either the entire memory region lies inside the | |
351 | section (i.e. a mapping covering some pages of a large | |
352 | segment) or the entire section lies inside the memory region | |
353 | (i.e. a mapping covering multiple small sections). | |
354 | ||
355 | This BFD was synthesized from reading target memory, | |
356 | we don't want to omit that. */ | |
357 | if (((vaddr >= start && vaddr + size <= end) | |
358 | || (start >= vaddr && end <= vaddr + size)) | |
359 | && !(bfd_get_file_flags (abfd) & BFD_IN_MEMORY)) | |
360 | { | |
361 | flags &= ~SEC_LOAD; | |
362 | goto keep; /* break out of two nested for loops */ | |
363 | } | |
364 | } | |
365 | ||
366 | keep: | |
367 | flags |= SEC_READONLY; | |
368 | } | |
369 | ||
370 | if (exec) | |
371 | flags |= SEC_CODE; | |
372 | else | |
373 | flags |= SEC_DATA; | |
be4d1333 | 374 | |
d3420b2f MK |
375 | osec = bfd_make_section_anyway (obfd, "load"); |
376 | if (osec == NULL) | |
be4d1333 | 377 | { |
8a3fe4f8 | 378 | warning (_("Couldn't make gcore segment: %s"), |
be4d1333 | 379 | bfd_errmsg (bfd_get_error ())); |
cbb83bd1 | 380 | return 1; |
be4d1333 MS |
381 | } |
382 | ||
383 | if (info_verbose) | |
384 | { | |
86fbe6cc EZ |
385 | fprintf_filtered (gdb_stdout, "Save segment, %s bytes at 0x%s\n", |
386 | paddr_d (size), paddr_nz (vaddr)); | |
be4d1333 MS |
387 | } |
388 | ||
389 | bfd_set_section_size (obfd, osec, size); | |
cbb83bd1 | 390 | bfd_set_section_vma (obfd, osec, vaddr); |
d3420b2f | 391 | bfd_section_lma (obfd, osec) = 0; /* ??? bfd_set_section_lma? */ |
cbb83bd1 RM |
392 | bfd_set_section_flags (obfd, osec, flags); |
393 | return 0; | |
be4d1333 MS |
394 | } |
395 | ||
396 | static int | |
d3420b2f MK |
397 | objfile_find_memory_regions (int (*func) (CORE_ADDR, unsigned long, |
398 | int, int, int, void *), | |
be4d1333 MS |
399 | void *obfd) |
400 | { | |
d3420b2f | 401 | /* Use objfile data to create memory sections. */ |
be4d1333 MS |
402 | struct objfile *objfile; |
403 | struct obj_section *objsec; | |
404 | bfd_vma temp_bottom, temp_top; | |
405 | ||
d3420b2f | 406 | /* Call callback function for each objfile section. */ |
be4d1333 MS |
407 | ALL_OBJSECTIONS (objfile, objsec) |
408 | { | |
409 | bfd *ibfd = objfile->obfd; | |
410 | asection *isec = objsec->the_bfd_section; | |
411 | flagword flags = bfd_get_section_flags (ibfd, isec); | |
412 | int ret; | |
413 | ||
414 | if ((flags & SEC_ALLOC) || (flags & SEC_LOAD)) | |
415 | { | |
416 | int size = bfd_section_size (ibfd, isec); | |
417 | int ret; | |
418 | ||
cbb83bd1 | 419 | ret = (*func) (objsec->addr, bfd_section_size (ibfd, isec), |
d3420b2f MK |
420 | 1, /* All sections will be readable. */ |
421 | (flags & SEC_READONLY) == 0, /* Writable. */ | |
422 | (flags & SEC_CODE) != 0, /* Executable. */ | |
423 | obfd); | |
424 | if (ret != 0) | |
be4d1333 MS |
425 | return ret; |
426 | } | |
427 | } | |
428 | ||
d3420b2f | 429 | /* Make a stack segment. */ |
be4d1333 | 430 | if (derive_stack_segment (&temp_bottom, &temp_top)) |
cbb83bd1 | 431 | (*func) (temp_bottom, temp_top - temp_bottom, |
d3420b2f MK |
432 | 1, /* Stack section will be readable. */ |
433 | 1, /* Stack section will be writable. */ | |
434 | 0, /* Stack section will not be executable. */ | |
be4d1333 MS |
435 | obfd); |
436 | ||
437 | /* Make a heap segment. */ | |
438 | if (derive_heap_segment (exec_bfd, &temp_bottom, &temp_top)) | |
d3420b2f MK |
439 | (*func) (temp_bottom, temp_top - temp_bottom, |
440 | 1, /* Heap section will be readable. */ | |
441 | 1, /* Heap section will be writable. */ | |
442 | 0, /* Heap section will not be executable. */ | |
be4d1333 | 443 | obfd); |
d3420b2f | 444 | |
be4d1333 MS |
445 | return 0; |
446 | } | |
447 | ||
448 | static void | |
449 | gcore_copy_callback (bfd *obfd, asection *osec, void *ignored) | |
450 | { | |
804e0f53 DJ |
451 | bfd_size_type size, total_size = bfd_section_size (obfd, osec); |
452 | file_ptr offset = 0; | |
be4d1333 MS |
453 | struct cleanup *old_chain = NULL; |
454 | void *memhunk; | |
455 | ||
cbb83bd1 RM |
456 | /* Read-only sections are marked; we don't have to copy their contents. */ |
457 | if ((bfd_get_section_flags (obfd, osec) & SEC_LOAD) == 0) | |
d3420b2f MK |
458 | return; |
459 | ||
460 | /* Only interested in "load" sections. */ | |
20fe79c8 | 461 | if (strncmp ("load", bfd_section_name (obfd, osec), 4) != 0) |
d3420b2f | 462 | return; |
be4d1333 | 463 | |
804e0f53 | 464 | size = min (total_size, MAX_COPY_BYTES); |
d3420b2f MK |
465 | memhunk = xmalloc (size); |
466 | /* ??? This is crap since xmalloc should never return NULL. */ | |
467 | if (memhunk == NULL) | |
8a3fe4f8 | 468 | error (_("Not enough memory to create corefile.")); |
be4d1333 MS |
469 | old_chain = make_cleanup (xfree, memhunk); |
470 | ||
804e0f53 DJ |
471 | while (total_size > 0) |
472 | { | |
473 | if (size > total_size) | |
474 | size = total_size; | |
475 | ||
476 | if (target_read_memory (bfd_section_vma (obfd, osec) + offset, | |
477 | memhunk, size) != 0) | |
478 | { | |
479 | warning (_("Memory read failed for corefile section, %s bytes at 0x%s."), | |
480 | paddr_d (size), paddr (bfd_section_vma (obfd, osec))); | |
481 | break; | |
482 | } | |
483 | if (!bfd_set_section_contents (obfd, osec, memhunk, offset, size)) | |
484 | { | |
485 | warning (_("Failed to write corefile contents (%s)."), | |
486 | bfd_errmsg (bfd_get_error ())); | |
487 | break; | |
488 | } | |
489 | ||
490 | total_size -= size; | |
491 | offset += size; | |
492 | } | |
be4d1333 | 493 | |
d3420b2f | 494 | do_cleanups (old_chain); /* Frees MEMHUNK. */ |
be4d1333 MS |
495 | } |
496 | ||
497 | static int | |
498 | gcore_memory_sections (bfd *obfd) | |
499 | { | |
500 | if (target_find_memory_regions (gcore_create_callback, obfd) != 0) | |
d3420b2f | 501 | return 0; /* FIXME: error return/msg? */ |
be4d1333 | 502 | |
d3420b2f | 503 | /* Record phdrs for section-to-segment mapping. */ |
be4d1333 MS |
504 | bfd_map_over_sections (obfd, make_output_phdrs, NULL); |
505 | ||
d3420b2f | 506 | /* Copy memory region contents. */ |
be4d1333 MS |
507 | bfd_map_over_sections (obfd, gcore_copy_callback, NULL); |
508 | ||
d3420b2f | 509 | return 1; |
be4d1333 MS |
510 | } |
511 | ||
512 | void | |
513 | _initialize_gcore (void) | |
514 | { | |
1bedd215 | 515 | add_com ("generate-core-file", class_files, gcore_command, _("\ |
d3420b2f | 516 | Save a core file with the current state of the debugged process.\n\ |
1bedd215 | 517 | Argument is optional filename. Default filename is 'core.<process_id>'.")); |
be4d1333 MS |
518 | |
519 | add_com_alias ("gcore", "generate-core-file", class_files, 1); | |
520 | exec_set_find_memory_regions (objfile_find_memory_regions); | |
521 | } |