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 | |
be4d1333 | 128 | #ifdef TARGET_ARCHITECTURE |
d3420b2f | 129 | const struct bfd_arch_info *bfdarch = TARGET_ARCHITECTURE; |
be4d1333 MS |
130 | |
131 | if (bfdarch != NULL) | |
132 | return bfdarch->mach; | |
6dbdc4a3 | 133 | #endif /* TARGET_ARCHITECTURE */ |
be4d1333 | 134 | if (exec_bfd == NULL) |
8a3fe4f8 | 135 | error (_("Can't find default bfd machine type (need execfile).")); |
be4d1333 MS |
136 | |
137 | return bfd_get_mach (exec_bfd); | |
6dbdc4a3 | 138 | #endif /* 1 */ |
be4d1333 MS |
139 | } |
140 | ||
141 | static enum bfd_architecture | |
142 | default_gcore_arch (void) | |
143 | { | |
144 | #ifdef TARGET_ARCHITECTURE | |
145 | const struct bfd_arch_info * bfdarch = TARGET_ARCHITECTURE; | |
146 | ||
147 | if (bfdarch != NULL) | |
148 | return bfdarch->arch; | |
149 | #endif | |
150 | if (exec_bfd == NULL) | |
8a3fe4f8 | 151 | error (_("Can't find bfd architecture for corefile (need execfile).")); |
be4d1333 MS |
152 | |
153 | return bfd_get_arch (exec_bfd); | |
154 | } | |
155 | ||
156 | static char * | |
157 | default_gcore_target (void) | |
158 | { | |
d3420b2f | 159 | /* FIXME: This may only work for ELF targets. */ |
be4d1333 | 160 | if (exec_bfd == NULL) |
6dbdc4a3 MS |
161 | return NULL; |
162 | else | |
163 | return bfd_get_target (exec_bfd); | |
be4d1333 MS |
164 | } |
165 | ||
d3420b2f MK |
166 | /* Derive a reasonable stack segment by unwinding the target stack, |
167 | and store its limits in *BOTTOM and *TOP. Return non-zero if | |
168 | successful. */ | |
be4d1333 | 169 | |
cbb83bd1 | 170 | static int |
69db8bae | 171 | derive_stack_segment (bfd_vma *bottom, bfd_vma *top) |
be4d1333 | 172 | { |
be4d1333 MS |
173 | struct frame_info *fi, *tmp_fi; |
174 | ||
d3420b2f MK |
175 | gdb_assert (bottom); |
176 | gdb_assert (top); | |
be4d1333 | 177 | |
d3420b2f | 178 | /* Can't succeed without stack and registers. */ |
be4d1333 | 179 | if (!target_has_stack || !target_has_registers) |
d3420b2f | 180 | return 0; |
be4d1333 | 181 | |
d3420b2f MK |
182 | /* Can't succeed without current frame. */ |
183 | fi = get_current_frame (); | |
184 | if (fi == NULL) | |
185 | return 0; | |
be4d1333 | 186 | |
d3420b2f | 187 | /* Save frame pointer of TOS frame. */ |
8d357cca | 188 | *top = get_frame_base (fi); |
d3420b2f | 189 | /* If current stack pointer is more "inner", use that instead. */ |
be4d1333 MS |
190 | if (INNER_THAN (read_sp (), *top)) |
191 | *top = read_sp (); | |
192 | ||
d3420b2f | 193 | /* Find prev-most frame. */ |
be4d1333 MS |
194 | while ((tmp_fi = get_prev_frame (fi)) != NULL) |
195 | fi = tmp_fi; | |
196 | ||
d3420b2f | 197 | /* Save frame pointer of prev-most frame. */ |
8d357cca | 198 | *bottom = get_frame_base (fi); |
be4d1333 | 199 | |
d3420b2f MK |
200 | /* Now canonicalize their order, so that BOTTOM is a lower address |
201 | (as opposed to a lower stack frame). */ | |
be4d1333 MS |
202 | if (*bottom > *top) |
203 | { | |
d3420b2f MK |
204 | bfd_vma tmp_vma; |
205 | ||
be4d1333 MS |
206 | tmp_vma = *top; |
207 | *top = *bottom; | |
208 | *bottom = tmp_vma; | |
209 | } | |
210 | ||
d3420b2f | 211 | return 1; |
be4d1333 MS |
212 | } |
213 | ||
d3420b2f MK |
214 | /* Derive a reasonable heap segment for ABFD by looking at sbrk and |
215 | the static data sections. Store its limits in *BOTTOM and *TOP. | |
216 | Return non-zero if successful. */ | |
be4d1333 | 217 | |
cbb83bd1 | 218 | static int |
69db8bae | 219 | derive_heap_segment (bfd *abfd, bfd_vma *bottom, bfd_vma *top) |
be4d1333 MS |
220 | { |
221 | bfd_vma top_of_data_memory = 0; | |
222 | bfd_vma top_of_heap = 0; | |
223 | bfd_size_type sec_size; | |
224 | struct value *zero, *sbrk; | |
225 | bfd_vma sec_vaddr; | |
226 | asection *sec; | |
227 | ||
d3420b2f MK |
228 | gdb_assert (bottom); |
229 | gdb_assert (top); | |
be4d1333 | 230 | |
d3420b2f MK |
231 | /* This function depends on being able to call a function in the |
232 | inferior. */ | |
be4d1333 | 233 | if (!target_has_execution) |
d3420b2f MK |
234 | return 0; |
235 | ||
236 | /* The following code assumes that the link map is arranged as | |
237 | follows (low to high addresses): | |
be4d1333 | 238 | |
d3420b2f MK |
239 | --------------------------------- |
240 | | text sections | | |
241 | --------------------------------- | |
242 | | data sections (including bss) | | |
243 | --------------------------------- | |
244 | | heap | | |
245 | --------------------------------- */ | |
be4d1333 MS |
246 | |
247 | for (sec = abfd->sections; sec; sec = sec->next) | |
248 | { | |
d3420b2f MK |
249 | if (bfd_get_section_flags (abfd, sec) & SEC_DATA |
250 | || strcmp (".bss", bfd_section_name (abfd, sec)) == 0) | |
be4d1333 MS |
251 | { |
252 | sec_vaddr = bfd_get_section_vma (abfd, sec); | |
2c500098 | 253 | sec_size = bfd_get_section_size (sec); |
be4d1333 MS |
254 | if (sec_vaddr + sec_size > top_of_data_memory) |
255 | top_of_data_memory = sec_vaddr + sec_size; | |
256 | } | |
257 | } | |
d3420b2f | 258 | |
be4d1333 | 259 | /* Now get the top-of-heap by calling sbrk in the inferior. */ |
20fe79c8 MS |
260 | if (lookup_minimal_symbol ("sbrk", NULL, NULL) != NULL) |
261 | { | |
d3420b2f MK |
262 | sbrk = find_function_in_inferior ("sbrk"); |
263 | if (sbrk == NULL) | |
20fe79c8 MS |
264 | return 0; |
265 | } | |
266 | else if (lookup_minimal_symbol ("_sbrk", NULL, NULL) != NULL) | |
267 | { | |
d3420b2f MK |
268 | sbrk = find_function_in_inferior ("_sbrk"); |
269 | if (sbrk == NULL) | |
20fe79c8 MS |
270 | return 0; |
271 | } | |
272 | else | |
be4d1333 | 273 | return 0; |
20fe79c8 | 274 | |
d3420b2f MK |
275 | zero = value_from_longest (builtin_type_int, 0); |
276 | gdb_assert (zero); | |
277 | sbrk = call_function_by_hand (sbrk, 1, &zero); | |
278 | if (sbrk == NULL) | |
be4d1333 MS |
279 | return 0; |
280 | top_of_heap = value_as_long (sbrk); | |
281 | ||
d3420b2f | 282 | /* Return results. */ |
be4d1333 MS |
283 | if (top_of_heap > top_of_data_memory) |
284 | { | |
285 | *bottom = top_of_data_memory; | |
286 | *top = top_of_heap; | |
d3420b2f | 287 | return 1; |
be4d1333 | 288 | } |
d3420b2f MK |
289 | |
290 | /* No additional heap space needs to be saved. */ | |
291 | return 0; | |
be4d1333 MS |
292 | } |
293 | ||
be4d1333 MS |
294 | static void |
295 | make_output_phdrs (bfd *obfd, asection *osec, void *ignored) | |
296 | { | |
297 | int p_flags = 0; | |
298 | int p_type; | |
299 | ||
300 | /* FIXME: these constants may only be applicable for ELF. */ | |
20fe79c8 | 301 | if (strncmp (bfd_section_name (obfd, osec), "load", 4) == 0) |
be4d1333 MS |
302 | p_type = PT_LOAD; |
303 | else | |
304 | p_type = PT_NOTE; | |
305 | ||
306 | p_flags |= PF_R; /* Segment is readable. */ | |
307 | if (!(bfd_get_section_flags (obfd, osec) & SEC_READONLY)) | |
308 | p_flags |= PF_W; /* Segment is writable. */ | |
309 | if (bfd_get_section_flags (obfd, osec) & SEC_CODE) | |
310 | p_flags |= PF_X; /* Segment is executable. */ | |
311 | ||
d3420b2f | 312 | bfd_record_phdr (obfd, p_type, 1, p_flags, 0, 0, 0, 0, 1, &osec); |
be4d1333 MS |
313 | } |
314 | ||
cbb83bd1 RM |
315 | static int |
316 | gcore_create_callback (CORE_ADDR vaddr, unsigned long size, | |
317 | int read, int write, int exec, void *data) | |
be4d1333 | 318 | { |
cbb83bd1 | 319 | bfd *obfd = data; |
be4d1333 | 320 | asection *osec; |
cbb83bd1 RM |
321 | flagword flags = SEC_ALLOC | SEC_HAS_CONTENTS | SEC_LOAD; |
322 | ||
86fbe6cc EZ |
323 | /* If the memory segment has no permissions set, ignore it, otherwise |
324 | when we later try to access it for read/write, we'll get an error | |
325 | or jam the kernel. */ | |
326 | if (read == 0 && write == 0 && exec == 0) | |
327 | { | |
328 | if (info_verbose) | |
329 | { | |
330 | fprintf_filtered (gdb_stdout, "Ignore segment, %s bytes at 0x%s\n", | |
331 | paddr_d (size), paddr_nz (vaddr)); | |
332 | } | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
cbb83bd1 RM |
337 | if (write == 0) |
338 | { | |
339 | /* See if this region of memory lies inside a known file on disk. | |
340 | If so, we can avoid copying its contents by clearing SEC_LOAD. */ | |
341 | struct objfile *objfile; | |
342 | struct obj_section *objsec; | |
343 | ||
344 | ALL_OBJSECTIONS (objfile, objsec) | |
345 | { | |
346 | bfd *abfd = objfile->obfd; | |
347 | asection *asec = objsec->the_bfd_section; | |
348 | bfd_vma align = (bfd_vma) 1 << bfd_get_section_alignment (abfd, | |
349 | asec); | |
350 | bfd_vma start = objsec->addr & -align; | |
351 | bfd_vma end = (objsec->endaddr + align - 1) & -align; | |
352 | /* Match if either the entire memory region lies inside the | |
353 | section (i.e. a mapping covering some pages of a large | |
354 | segment) or the entire section lies inside the memory region | |
355 | (i.e. a mapping covering multiple small sections). | |
356 | ||
357 | This BFD was synthesized from reading target memory, | |
358 | we don't want to omit that. */ | |
359 | if (((vaddr >= start && vaddr + size <= end) | |
360 | || (start >= vaddr && end <= vaddr + size)) | |
361 | && !(bfd_get_file_flags (abfd) & BFD_IN_MEMORY)) | |
362 | { | |
363 | flags &= ~SEC_LOAD; | |
364 | goto keep; /* break out of two nested for loops */ | |
365 | } | |
366 | } | |
367 | ||
368 | keep: | |
369 | flags |= SEC_READONLY; | |
370 | } | |
371 | ||
372 | if (exec) | |
373 | flags |= SEC_CODE; | |
374 | else | |
375 | flags |= SEC_DATA; | |
be4d1333 | 376 | |
d3420b2f MK |
377 | osec = bfd_make_section_anyway (obfd, "load"); |
378 | if (osec == NULL) | |
be4d1333 | 379 | { |
8a3fe4f8 | 380 | warning (_("Couldn't make gcore segment: %s"), |
be4d1333 | 381 | bfd_errmsg (bfd_get_error ())); |
cbb83bd1 | 382 | return 1; |
be4d1333 MS |
383 | } |
384 | ||
385 | if (info_verbose) | |
386 | { | |
86fbe6cc EZ |
387 | fprintf_filtered (gdb_stdout, "Save segment, %s bytes at 0x%s\n", |
388 | paddr_d (size), paddr_nz (vaddr)); | |
be4d1333 MS |
389 | } |
390 | ||
391 | bfd_set_section_size (obfd, osec, size); | |
cbb83bd1 | 392 | bfd_set_section_vma (obfd, osec, vaddr); |
d3420b2f | 393 | bfd_section_lma (obfd, osec) = 0; /* ??? bfd_set_section_lma? */ |
cbb83bd1 RM |
394 | bfd_set_section_flags (obfd, osec, flags); |
395 | return 0; | |
be4d1333 MS |
396 | } |
397 | ||
398 | static int | |
d3420b2f MK |
399 | objfile_find_memory_regions (int (*func) (CORE_ADDR, unsigned long, |
400 | int, int, int, void *), | |
be4d1333 MS |
401 | void *obfd) |
402 | { | |
d3420b2f | 403 | /* Use objfile data to create memory sections. */ |
be4d1333 MS |
404 | struct objfile *objfile; |
405 | struct obj_section *objsec; | |
406 | bfd_vma temp_bottom, temp_top; | |
407 | ||
d3420b2f | 408 | /* Call callback function for each objfile section. */ |
be4d1333 MS |
409 | ALL_OBJSECTIONS (objfile, objsec) |
410 | { | |
411 | bfd *ibfd = objfile->obfd; | |
412 | asection *isec = objsec->the_bfd_section; | |
413 | flagword flags = bfd_get_section_flags (ibfd, isec); | |
414 | int ret; | |
415 | ||
416 | if ((flags & SEC_ALLOC) || (flags & SEC_LOAD)) | |
417 | { | |
418 | int size = bfd_section_size (ibfd, isec); | |
419 | int ret; | |
420 | ||
cbb83bd1 | 421 | ret = (*func) (objsec->addr, bfd_section_size (ibfd, isec), |
d3420b2f MK |
422 | 1, /* All sections will be readable. */ |
423 | (flags & SEC_READONLY) == 0, /* Writable. */ | |
424 | (flags & SEC_CODE) != 0, /* Executable. */ | |
425 | obfd); | |
426 | if (ret != 0) | |
be4d1333 MS |
427 | return ret; |
428 | } | |
429 | } | |
430 | ||
d3420b2f | 431 | /* Make a stack segment. */ |
be4d1333 | 432 | if (derive_stack_segment (&temp_bottom, &temp_top)) |
cbb83bd1 | 433 | (*func) (temp_bottom, temp_top - temp_bottom, |
d3420b2f MK |
434 | 1, /* Stack section will be readable. */ |
435 | 1, /* Stack section will be writable. */ | |
436 | 0, /* Stack section will not be executable. */ | |
be4d1333 MS |
437 | obfd); |
438 | ||
439 | /* Make a heap segment. */ | |
440 | if (derive_heap_segment (exec_bfd, &temp_bottom, &temp_top)) | |
d3420b2f MK |
441 | (*func) (temp_bottom, temp_top - temp_bottom, |
442 | 1, /* Heap section will be readable. */ | |
443 | 1, /* Heap section will be writable. */ | |
444 | 0, /* Heap section will not be executable. */ | |
be4d1333 | 445 | obfd); |
d3420b2f | 446 | |
be4d1333 MS |
447 | return 0; |
448 | } | |
449 | ||
450 | static void | |
451 | gcore_copy_callback (bfd *obfd, asection *osec, void *ignored) | |
452 | { | |
804e0f53 DJ |
453 | bfd_size_type size, total_size = bfd_section_size (obfd, osec); |
454 | file_ptr offset = 0; | |
be4d1333 MS |
455 | struct cleanup *old_chain = NULL; |
456 | void *memhunk; | |
457 | ||
cbb83bd1 RM |
458 | /* Read-only sections are marked; we don't have to copy their contents. */ |
459 | if ((bfd_get_section_flags (obfd, osec) & SEC_LOAD) == 0) | |
d3420b2f MK |
460 | return; |
461 | ||
462 | /* Only interested in "load" sections. */ | |
20fe79c8 | 463 | if (strncmp ("load", bfd_section_name (obfd, osec), 4) != 0) |
d3420b2f | 464 | return; |
be4d1333 | 465 | |
804e0f53 | 466 | size = min (total_size, MAX_COPY_BYTES); |
d3420b2f MK |
467 | memhunk = xmalloc (size); |
468 | /* ??? This is crap since xmalloc should never return NULL. */ | |
469 | if (memhunk == NULL) | |
8a3fe4f8 | 470 | error (_("Not enough memory to create corefile.")); |
be4d1333 MS |
471 | old_chain = make_cleanup (xfree, memhunk); |
472 | ||
804e0f53 DJ |
473 | while (total_size > 0) |
474 | { | |
475 | if (size > total_size) | |
476 | size = total_size; | |
477 | ||
478 | if (target_read_memory (bfd_section_vma (obfd, osec) + offset, | |
479 | memhunk, size) != 0) | |
480 | { | |
481 | warning (_("Memory read failed for corefile section, %s bytes at 0x%s."), | |
482 | paddr_d (size), paddr (bfd_section_vma (obfd, osec))); | |
483 | break; | |
484 | } | |
485 | if (!bfd_set_section_contents (obfd, osec, memhunk, offset, size)) | |
486 | { | |
487 | warning (_("Failed to write corefile contents (%s)."), | |
488 | bfd_errmsg (bfd_get_error ())); | |
489 | break; | |
490 | } | |
491 | ||
492 | total_size -= size; | |
493 | offset += size; | |
494 | } | |
be4d1333 | 495 | |
d3420b2f | 496 | do_cleanups (old_chain); /* Frees MEMHUNK. */ |
be4d1333 MS |
497 | } |
498 | ||
499 | static int | |
500 | gcore_memory_sections (bfd *obfd) | |
501 | { | |
502 | if (target_find_memory_regions (gcore_create_callback, obfd) != 0) | |
d3420b2f | 503 | return 0; /* FIXME: error return/msg? */ |
be4d1333 | 504 | |
d3420b2f | 505 | /* Record phdrs for section-to-segment mapping. */ |
be4d1333 MS |
506 | bfd_map_over_sections (obfd, make_output_phdrs, NULL); |
507 | ||
d3420b2f | 508 | /* Copy memory region contents. */ |
be4d1333 MS |
509 | bfd_map_over_sections (obfd, gcore_copy_callback, NULL); |
510 | ||
d3420b2f | 511 | return 1; |
be4d1333 MS |
512 | } |
513 | ||
514 | void | |
515 | _initialize_gcore (void) | |
516 | { | |
1bedd215 | 517 | add_com ("generate-core-file", class_files, gcore_command, _("\ |
d3420b2f | 518 | Save a core file with the current state of the debugged process.\n\ |
1bedd215 | 519 | Argument is optional filename. Default filename is 'core.<process_id>'.")); |
be4d1333 MS |
520 | |
521 | add_com_alias ("gcore", "generate-core-file", class_files, 1); | |
522 | exec_set_find_memory_regions (objfile_find_memory_regions); | |
523 | } |