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/tmp/gdb-8.1/gdb/gcore.c
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1 /* Generate a core file for the inferior process.
2
3 Copyright (C) 2001-2018 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 #include "defs.h"
21 #include "elf-bfd.h"
22 #include "infcall.h"
23 #include "inferior.h"
24 #include "gdbcore.h"
25 #include "objfiles.h"
26 #include "solib.h"
27 #include "symfile.h"
28 #include "arch-utils.h"
29 #include "completer.h"
30 #include "gcore.h"
31 #include "cli/cli-decode.h"
32 #include <fcntl.h>
33 #include "regcache.h"
34 #include "regset.h"
35 #include "gdb_bfd.h"
36 #include "readline/tilde.h"
37 #include <algorithm>
38 #include "common/gdb_unlinker.h"
39 #include "byte-vector.h"
40
41 /* The largest amount of memory to read from the target at once. We
42 must throttle it to limit the amount of memory used by GDB during
43 generate-core-file for programs with large resident data. */
44 #define MAX_COPY_BYTES (1024 * 1024)
45
46 static const char *default_gcore_target (void);
47 static enum bfd_architecture default_gcore_arch (void);
48 static unsigned long default_gcore_mach (void);
49 static int gcore_memory_sections (bfd *);
50
51 /* create_gcore_bfd -- helper for gcore_command (exported).
52 Open a new bfd core file for output, and return the handle. */
53
54 gdb_bfd_ref_ptr
55 create_gcore_bfd (const char *filename)
56 {
57 gdb_bfd_ref_ptr obfd (gdb_bfd_openw (filename, default_gcore_target ()));
58
59 if (obfd == NULL)
60 error (_("Failed to open '%s' for output."), filename);
61 bfd_set_format (obfd.get (), bfd_core);
62 bfd_set_arch_mach (obfd.get (), default_gcore_arch (), default_gcore_mach ());
63 return obfd;
64 }
65
66 /* write_gcore_file_1 -- do the actual work of write_gcore_file. */
67
68 static void
69 write_gcore_file_1 (bfd *obfd)
70 {
71 gdb::unique_xmalloc_ptr<char> note_data;
72 int note_size = 0;
73 asection *note_sec = NULL;
74
75 /* An external target method must build the notes section. */
76 /* FIXME: uweigand/2011-10-06: All architectures that support core file
77 generation should be converted to gdbarch_make_corefile_notes; at that
78 point, the target vector method can be removed. */
79 if (!gdbarch_make_corefile_notes_p (target_gdbarch ()))
80 note_data.reset (target_make_corefile_notes (obfd, &note_size));
81 else
82 note_data.reset (gdbarch_make_corefile_notes (target_gdbarch (), obfd,
83 &note_size));
84
85 if (note_data == NULL || note_size == 0)
86 error (_("Target does not support core file generation."));
87
88 /* Create the note section. */
89 note_sec = bfd_make_section_anyway_with_flags (obfd, "note0",
90 SEC_HAS_CONTENTS
91 | SEC_READONLY
92 | SEC_ALLOC);
93 if (note_sec == NULL)
94 error (_("Failed to create 'note' section for corefile: %s"),
95 bfd_errmsg (bfd_get_error ()));
96
97 bfd_set_section_vma (obfd, note_sec, 0);
98 bfd_set_section_alignment (obfd, note_sec, 0);
99 bfd_set_section_size (obfd, note_sec, note_size);
100
101 /* Now create the memory/load sections. */
102 if (gcore_memory_sections (obfd) == 0)
103 error (_("gcore: failed to get corefile memory sections from target."));
104
105 /* Write out the contents of the note section. */
106 if (!bfd_set_section_contents (obfd, note_sec, note_data.get (), 0,
107 note_size))
108 warning (_("writing note section (%s)"), bfd_errmsg (bfd_get_error ()));
109 }
110
111 /* write_gcore_file -- helper for gcore_command (exported).
112 Compose and write the corefile data to the core file. */
113
114 void
115 write_gcore_file (bfd *obfd)
116 {
117 struct gdb_exception except = exception_none;
118
119 target_prepare_to_generate_core ();
120
121 TRY
122 {
123 write_gcore_file_1 (obfd);
124 }
125 CATCH (e, RETURN_MASK_ALL)
126 {
127 except = e;
128 }
129 END_CATCH
130
131 target_done_generating_core ();
132
133 if (except.reason < 0)
134 throw_exception (except);
135 }
136
137 /* gcore_command -- implements the 'gcore' command.
138 Generate a core file from the inferior process. */
139
140 static void
141 gcore_command (const char *args, int from_tty)
142 {
143 gdb::unique_xmalloc_ptr<char> corefilename;
144
145 /* No use generating a corefile without a target process. */
146 if (!target_has_execution)
147 noprocess ();
148
149 if (args && *args)
150 corefilename.reset (tilde_expand (args));
151 else
152 {
153 /* Default corefile name is "core.PID". */
154 corefilename.reset (xstrprintf ("core.%d", ptid_get_pid (inferior_ptid)));
155 }
156
157 if (info_verbose)
158 fprintf_filtered (gdb_stdout,
159 "Opening corefile '%s' for output.\n",
160 corefilename.get ());
161
162 /* Open the output file. */
163 gdb_bfd_ref_ptr obfd (create_gcore_bfd (corefilename.get ()));
164
165 /* Arrange to unlink the file on failure. */
166 gdb::unlinker unlink_file (corefilename.get ());
167
168 /* Call worker function. */
169 write_gcore_file (obfd.get ());
170
171 /* Succeeded. */
172 unlink_file.keep ();
173
174 fprintf_filtered (gdb_stdout, "Saved corefile %s\n", corefilename.get ());
175 }
176
177 static unsigned long
178 default_gcore_mach (void)
179 {
180 #if 1 /* See if this even matters... */
181 return 0;
182 #else
183
184 const struct bfd_arch_info *bfdarch = gdbarch_bfd_arch_info (target_gdbarch ());
185
186 if (bfdarch != NULL)
187 return bfdarch->mach;
188 if (exec_bfd == NULL)
189 error (_("Can't find default bfd machine type (need execfile)."));
190
191 return bfd_get_mach (exec_bfd);
192 #endif /* 1 */
193 }
194
195 static enum bfd_architecture
196 default_gcore_arch (void)
197 {
198 const struct bfd_arch_info *bfdarch = gdbarch_bfd_arch_info (target_gdbarch ());
199
200 if (bfdarch != NULL)
201 return bfdarch->arch;
202 if (exec_bfd == NULL)
203 error (_("Can't find bfd architecture for corefile (need execfile)."));
204
205 return bfd_get_arch (exec_bfd);
206 }
207
208 static const char *
209 default_gcore_target (void)
210 {
211 /* The gdbarch may define a target to use for core files. */
212 if (gdbarch_gcore_bfd_target_p (target_gdbarch ()))
213 return gdbarch_gcore_bfd_target (target_gdbarch ());
214
215 /* Otherwise, try to fall back to the exec_bfd target. This will probably
216 not work for non-ELF targets. */
217 if (exec_bfd == NULL)
218 return NULL;
219 else
220 return bfd_get_target (exec_bfd);
221 }
222
223 /* Derive a reasonable stack segment by unwinding the target stack,
224 and store its limits in *BOTTOM and *TOP. Return non-zero if
225 successful. */
226
227 static int
228 derive_stack_segment (bfd_vma *bottom, bfd_vma *top)
229 {
230 struct frame_info *fi, *tmp_fi;
231
232 gdb_assert (bottom);
233 gdb_assert (top);
234
235 /* Can't succeed without stack and registers. */
236 if (!target_has_stack || !target_has_registers)
237 return 0;
238
239 /* Can't succeed without current frame. */
240 fi = get_current_frame ();
241 if (fi == NULL)
242 return 0;
243
244 /* Save frame pointer of TOS frame. */
245 *top = get_frame_base (fi);
246 /* If current stack pointer is more "inner", use that instead. */
247 if (gdbarch_inner_than (get_frame_arch (fi), get_frame_sp (fi), *top))
248 *top = get_frame_sp (fi);
249
250 /* Find prev-most frame. */
251 while ((tmp_fi = get_prev_frame (fi)) != NULL)
252 fi = tmp_fi;
253
254 /* Save frame pointer of prev-most frame. */
255 *bottom = get_frame_base (fi);
256
257 /* Now canonicalize their order, so that BOTTOM is a lower address
258 (as opposed to a lower stack frame). */
259 if (*bottom > *top)
260 {
261 bfd_vma tmp_vma;
262
263 tmp_vma = *top;
264 *top = *bottom;
265 *bottom = tmp_vma;
266 }
267
268 return 1;
269 }
270
271 /* call_target_sbrk --
272 helper function for derive_heap_segment. */
273
274 static bfd_vma
275 call_target_sbrk (int sbrk_arg)
276 {
277 struct objfile *sbrk_objf;
278 struct gdbarch *gdbarch;
279 bfd_vma top_of_heap;
280 struct value *target_sbrk_arg;
281 struct value *sbrk_fn, *ret;
282 bfd_vma tmp;
283
284 if (lookup_minimal_symbol ("sbrk", NULL, NULL).minsym != NULL)
285 {
286 sbrk_fn = find_function_in_inferior ("sbrk", &sbrk_objf);
287 if (sbrk_fn == NULL)
288 return (bfd_vma) 0;
289 }
290 else if (lookup_minimal_symbol ("_sbrk", NULL, NULL).minsym != NULL)
291 {
292 sbrk_fn = find_function_in_inferior ("_sbrk", &sbrk_objf);
293 if (sbrk_fn == NULL)
294 return (bfd_vma) 0;
295 }
296 else
297 return (bfd_vma) 0;
298
299 gdbarch = get_objfile_arch (sbrk_objf);
300 target_sbrk_arg = value_from_longest (builtin_type (gdbarch)->builtin_int,
301 sbrk_arg);
302 gdb_assert (target_sbrk_arg);
303 ret = call_function_by_hand (sbrk_fn, NULL, 1, &target_sbrk_arg);
304 if (ret == NULL)
305 return (bfd_vma) 0;
306
307 tmp = value_as_long (ret);
308 if ((LONGEST) tmp <= 0 || (LONGEST) tmp == 0xffffffff)
309 return (bfd_vma) 0;
310
311 top_of_heap = tmp;
312 return top_of_heap;
313 }
314
315 /* Derive a reasonable heap segment for ABFD by looking at sbrk and
316 the static data sections. Store its limits in *BOTTOM and *TOP.
317 Return non-zero if successful. */
318
319 static int
320 derive_heap_segment (bfd *abfd, bfd_vma *bottom, bfd_vma *top)
321 {
322 bfd_vma top_of_data_memory = 0;
323 bfd_vma top_of_heap = 0;
324 bfd_size_type sec_size;
325 bfd_vma sec_vaddr;
326 asection *sec;
327
328 gdb_assert (bottom);
329 gdb_assert (top);
330
331 /* This function depends on being able to call a function in the
332 inferior. */
333 if (!target_has_execution)
334 return 0;
335
336 /* The following code assumes that the link map is arranged as
337 follows (low to high addresses):
338
339 ---------------------------------
340 | text sections |
341 ---------------------------------
342 | data sections (including bss) |
343 ---------------------------------
344 | heap |
345 --------------------------------- */
346
347 for (sec = abfd->sections; sec; sec = sec->next)
348 {
349 if (bfd_get_section_flags (abfd, sec) & SEC_DATA
350 || strcmp (".bss", bfd_section_name (abfd, sec)) == 0)
351 {
352 sec_vaddr = bfd_get_section_vma (abfd, sec);
353 sec_size = bfd_get_section_size (sec);
354 if (sec_vaddr + sec_size > top_of_data_memory)
355 top_of_data_memory = sec_vaddr + sec_size;
356 }
357 }
358
359 top_of_heap = call_target_sbrk (0);
360 if (top_of_heap == (bfd_vma) 0)
361 return 0;
362
363 /* Return results. */
364 if (top_of_heap > top_of_data_memory)
365 {
366 *bottom = top_of_data_memory;
367 *top = top_of_heap;
368 return 1;
369 }
370
371 /* No additional heap space needs to be saved. */
372 return 0;
373 }
374
375 static void
376 make_output_phdrs (bfd *obfd, asection *osec, void *ignored)
377 {
378 int p_flags = 0;
379 int p_type = 0;
380
381 /* FIXME: these constants may only be applicable for ELF. */
382 if (startswith (bfd_section_name (obfd, osec), "load"))
383 p_type = PT_LOAD;
384 else if (startswith (bfd_section_name (obfd, osec), "note"))
385 p_type = PT_NOTE;
386 else
387 p_type = PT_NULL;
388
389 p_flags |= PF_R; /* Segment is readable. */
390 if (!(bfd_get_section_flags (obfd, osec) & SEC_READONLY))
391 p_flags |= PF_W; /* Segment is writable. */
392 if (bfd_get_section_flags (obfd, osec) & SEC_CODE)
393 p_flags |= PF_X; /* Segment is executable. */
394
395 bfd_record_phdr (obfd, p_type, 1, p_flags, 0, 0, 0, 0, 1, &osec);
396 }
397
398 /* find_memory_region_ftype implementation. DATA is 'bfd *' for the core file
399 GDB is creating. */
400
401 static int
402 gcore_create_callback (CORE_ADDR vaddr, unsigned long size, int read,
403 int write, int exec, int modified, void *data)
404 {
405 bfd *obfd = (bfd *) data;
406 asection *osec;
407 flagword flags = SEC_ALLOC | SEC_HAS_CONTENTS | SEC_LOAD;
408
409 /* If the memory segment has no permissions set, ignore it, otherwise
410 when we later try to access it for read/write, we'll get an error
411 or jam the kernel. */
412 if (read == 0 && write == 0 && exec == 0 && modified == 0)
413 {
414 if (info_verbose)
415 {
416 fprintf_filtered (gdb_stdout, "Ignore segment, %s bytes at %s\n",
417 plongest (size), paddress (target_gdbarch (), vaddr));
418 }
419
420 return 0;
421 }
422
423 if (write == 0 && modified == 0 && !solib_keep_data_in_core (vaddr, size))
424 {
425 /* See if this region of memory lies inside a known file on disk.
426 If so, we can avoid copying its contents by clearing SEC_LOAD. */
427 struct objfile *objfile;
428 struct obj_section *objsec;
429
430 ALL_OBJSECTIONS (objfile, objsec)
431 {
432 bfd *abfd = objfile->obfd;
433 asection *asec = objsec->the_bfd_section;
434 bfd_vma align = (bfd_vma) 1 << bfd_get_section_alignment (abfd,
435 asec);
436 bfd_vma start = obj_section_addr (objsec) & -align;
437 bfd_vma end = (obj_section_endaddr (objsec) + align - 1) & -align;
438
439 /* Match if either the entire memory region lies inside the
440 section (i.e. a mapping covering some pages of a large
441 segment) or the entire section lies inside the memory region
442 (i.e. a mapping covering multiple small sections).
443
444 This BFD was synthesized from reading target memory,
445 we don't want to omit that. */
446 if (objfile->separate_debug_objfile_backlink == NULL
447 && ((vaddr >= start && vaddr + size <= end)
448 || (start >= vaddr && end <= vaddr + size))
449 && !(bfd_get_file_flags (abfd) & BFD_IN_MEMORY))
450 {
451 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
452 goto keep; /* Break out of two nested for loops. */
453 }
454 }
455
456 keep:;
457 }
458
459 if (write == 0)
460 flags |= SEC_READONLY;
461
462 if (exec)
463 flags |= SEC_CODE;
464 else
465 flags |= SEC_DATA;
466
467 osec = bfd_make_section_anyway_with_flags (obfd, "load", flags);
468 if (osec == NULL)
469 {
470 warning (_("Couldn't make gcore segment: %s"),
471 bfd_errmsg (bfd_get_error ()));
472 return 1;
473 }
474
475 if (info_verbose)
476 {
477 fprintf_filtered (gdb_stdout, "Save segment, %s bytes at %s\n",
478 plongest (size), paddress (target_gdbarch (), vaddr));
479 }
480
481 bfd_set_section_size (obfd, osec, size);
482 bfd_set_section_vma (obfd, osec, vaddr);
483 bfd_section_lma (obfd, osec) = 0; /* ??? bfd_set_section_lma? */
484 return 0;
485 }
486
487 int
488 objfile_find_memory_regions (struct target_ops *self,
489 find_memory_region_ftype func, void *obfd)
490 {
491 /* Use objfile data to create memory sections. */
492 struct objfile *objfile;
493 struct obj_section *objsec;
494 bfd_vma temp_bottom, temp_top;
495
496 /* Call callback function for each objfile section. */
497 ALL_OBJSECTIONS (objfile, objsec)
498 {
499 bfd *ibfd = objfile->obfd;
500 asection *isec = objsec->the_bfd_section;
501 flagword flags = bfd_get_section_flags (ibfd, isec);
502
503 /* Separate debug info files are irrelevant for gcore. */
504 if (objfile->separate_debug_objfile_backlink != NULL)
505 continue;
506
507 if ((flags & SEC_ALLOC) || (flags & SEC_LOAD))
508 {
509 int size = bfd_section_size (ibfd, isec);
510 int ret;
511
512 ret = (*func) (obj_section_addr (objsec), size,
513 1, /* All sections will be readable. */
514 (flags & SEC_READONLY) == 0, /* Writable. */
515 (flags & SEC_CODE) != 0, /* Executable. */
516 1, /* MODIFIED is unknown, pass it as true. */
517 obfd);
518 if (ret != 0)
519 return ret;
520 }
521 }
522
523 /* Make a stack segment. */
524 if (derive_stack_segment (&temp_bottom, &temp_top))
525 (*func) (temp_bottom, temp_top - temp_bottom,
526 1, /* Stack section will be readable. */
527 1, /* Stack section will be writable. */
528 0, /* Stack section will not be executable. */
529 1, /* Stack section will be modified. */
530 obfd);
531
532 /* Make a heap segment. */
533 if (derive_heap_segment (exec_bfd, &temp_bottom, &temp_top))
534 (*func) (temp_bottom, temp_top - temp_bottom,
535 1, /* Heap section will be readable. */
536 1, /* Heap section will be writable. */
537 0, /* Heap section will not be executable. */
538 1, /* Heap section will be modified. */
539 obfd);
540
541 return 0;
542 }
543
544 static void
545 gcore_copy_callback (bfd *obfd, asection *osec, void *ignored)
546 {
547 bfd_size_type size, total_size = bfd_section_size (obfd, osec);
548 file_ptr offset = 0;
549
550 /* Read-only sections are marked; we don't have to copy their contents. */
551 if ((bfd_get_section_flags (obfd, osec) & SEC_LOAD) == 0)
552 return;
553
554 /* Only interested in "load" sections. */
555 if (!startswith (bfd_section_name (obfd, osec), "load"))
556 return;
557
558 size = std::min (total_size, (bfd_size_type) MAX_COPY_BYTES);
559 gdb::byte_vector memhunk (size);
560
561 while (total_size > 0)
562 {
563 if (size > total_size)
564 size = total_size;
565
566 if (target_read_memory (bfd_section_vma (obfd, osec) + offset,
567 memhunk.data (), size) != 0)
568 {
569 warning (_("Memory read failed for corefile "
570 "section, %s bytes at %s."),
571 plongest (size),
572 paddress (target_gdbarch (), bfd_section_vma (obfd, osec)));
573 break;
574 }
575 if (!bfd_set_section_contents (obfd, osec, memhunk.data (),
576 offset, size))
577 {
578 warning (_("Failed to write corefile contents (%s)."),
579 bfd_errmsg (bfd_get_error ()));
580 break;
581 }
582
583 total_size -= size;
584 offset += size;
585 }
586 }
587
588 static int
589 gcore_memory_sections (bfd *obfd)
590 {
591 /* Try gdbarch method first, then fall back to target method. */
592 if (!gdbarch_find_memory_regions_p (target_gdbarch ())
593 || gdbarch_find_memory_regions (target_gdbarch (),
594 gcore_create_callback, obfd) != 0)
595 {
596 if (target_find_memory_regions (gcore_create_callback, obfd) != 0)
597 return 0; /* FIXME: error return/msg? */
598 }
599
600 /* Record phdrs for section-to-segment mapping. */
601 bfd_map_over_sections (obfd, make_output_phdrs, NULL);
602
603 /* Copy memory region contents. */
604 bfd_map_over_sections (obfd, gcore_copy_callback, NULL);
605
606 return 1;
607 }
608
609 void
610 _initialize_gcore (void)
611 {
612 add_com ("generate-core-file", class_files, gcore_command, _("\
613 Save a core file with the current state of the debugged process.\n\
614 Argument is optional filename. Default filename is 'core.<process_id>'."));
615
616 add_com_alias ("gcore", "generate-core-file", class_files, 1);
617 }
target_gdbarch
struct gdbarch * target_gdbarch(void)
Definition: gdbarch.c:5467
gdbarch
Definition: gdbarch.c:127
read
ssize_t read(int fd, void *buf, size_t count)
Definition: expect-read1.c:26
derive_heap_segment
static int derive_heap_segment(bfd *abfd, bfd_vma *bottom, bfd_vma *top)
Definition: gcore.c:320
gdbarch_make_corefile_notes
char * gdbarch_make_corefile_notes(struct gdbarch *gdbarch, bfd *obfd, int *note_size)
Definition: gdbarch.c:3661
target_has_registers
#define target_has_registers
Definition: target.h:1740
completer.h
objfile::obfd
bfd * obfd
Definition: objfiles.h:342
make_output_phdrs
static void make_output_phdrs(bfd *obfd, asection *osec, void *ignored)
Definition: gcore.c:376
infcall.h
get_current_frame
struct frame_info * get_current_frame(void)
Definition: frame.c:1563
CORE_ADDR
bfd_vma CORE_ADDR
Definition: common-types.h:41
RETURN_MASK_ALL
Definition: common-exceptions.h:44
call_target_sbrk
static bfd_vma call_target_sbrk(int sbrk_arg)
Definition: gcore.c:275
ptid_get_pid
int ptid_get_pid(const ptid_t &ptid)
Definition: ptid.c:47
objfile::separate_debug_objfile_backlink
struct objfile * separate_debug_objfile_backlink
Definition: objfiles.h:441
gdbarch_inner_than
int gdbarch_inner_than(struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs)
Definition: gdbarch.c:2827
get_prev_frame
struct frame_info * get_prev_frame(struct frame_info *this_frame)
Definition: frame.c:2254
value_as_long
LONGEST value_as_long(struct value *val)
Definition: value.c:2749
func
void(* func)(char *)
Definition: remote-fileio.c:1104
obj_section::the_bfd_section
struct bfd_section * the_bfd_section
Definition: objfiles.h:126
warning
void warning(const char *fmt,...)
Definition: errors.c:26
target_find_memory_regions
#define target_find_memory_regions(FUNC, DATA)
Definition: target.h:1854
plongest
char * plongest(LONGEST l)
Definition: print-utils.c:137
_initialize_gcore
void _initialize_gcore(void)
Definition: gcore.c:610
get_frame_sp
CORE_ADDR get_frame_sp(struct frame_info *this_frame)
Definition: frame.c:2782
obj_section_endaddr
#define obj_section_endaddr(s)
Definition: objfiles.h:146
info_verbose
int info_verbose
Definition: top.c:1791
exception_none
const struct gdb_exception exception_none
Definition: common-exceptions.c:23
ALL_OBJSECTIONS
#define ALL_OBJSECTIONS(objfile, osect)
Definition: objfiles.h:663
frame_info
Definition: frame.c:85
target_prepare_to_generate_core
void target_prepare_to_generate_core(void)
Definition: target.c:3764
_
#define _(String)
Definition: gdb_locale.h:35
gdb_bfd.h
defs.h
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Definition: gdbtypes.h:1495
END_CATCH
#define END_CATCH
Definition: common-exceptions.h:259
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Definition: command.h:41
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gdb_bfd_ref_ptr create_gcore_bfd(const char *filename)
Definition: gcore.c:55
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const char * paddress(struct gdbarch *gdbarch, CORE_ADDR addr)
Definition: utils.c:2745
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static unsigned long default_gcore_mach(void)
Definition: gcore.c:178
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mach_port_t kern_return_t mach_port_t msgports mach_port_t kern_return_t pid_t pid mach_port_t kern_return_t mach_port_t task mach_port_t kern_return_t int flags
Definition: gnu-nat.c:1891
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#define TRY
Definition: common-exceptions.h:246
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const char * gdbarch_gcore_bfd_target(struct gdbarch *gdbarch)
Definition: gdbarch.c:3829
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int gdbarch_find_memory_regions(struct gdbarch *gdbarch, find_memory_region_ftype func, void *data)
Definition: gdbarch.c:3685
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Definition: gdb_ref_ptr.h:49
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#define CATCH(EXCEPTION, MASK)
Definition: common-exceptions.h:254
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std::unique_ptr< T, xfree_deleter< T > > unique_xmalloc_ptr
Definition: gdb_unique_ptr.h:48
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objfile(bfd *, const char *, objfile_flags)
Definition: objfiles.c:373
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int gdbarch_find_memory_regions_p(struct gdbarch *gdbarch)
Definition: gdbarch.c:3678
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Definition: target.h:412
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#define exec_bfd
Definition: exec.h:33
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Definition: utils.c:2008
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struct value * find_function_in_inferior(const char *name, struct objfile **objf_p)
Definition: valops.c:127
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struct cmd_list_element * add_com_alias(const char *name, const char *oldname, enum command_class theclass, int abbrev_flag)
Definition: cli-decode.c:912
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struct gdbarch * get_objfile_arch(const struct objfile *objfile)
Definition: objfiles.c:445
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static enum bfd_architecture default_gcore_arch(void)
Definition: gcore.c:196
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static const char * default_gcore_target(void)
Definition: gcore.c:209
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struct value * value_from_longest(struct type *type, LONGEST num)
Definition: value.c:3534
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void write_gcore_file(bfd *obfd)
Definition: gcore.c:115
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static int startswith(const char *string, const char *pattern)
Definition: common-utils.h:107
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#define target_has_execution
Definition: target.h:1756
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static int gcore_memory_sections(bfd *)
Definition: gcore.c:589
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char * xstrprintf(const char *format,...)
Definition: common-utils.c:107
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#define MAX_COPY_BYTES
Definition: gcore.c:44
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#define gdb_assert(expr)
Definition: gdb_assert.h:32
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Definition: value.c:169
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int objfile_find_memory_regions(struct target_ops *self, find_memory_region_ftype func, void *obfd)
Definition: gcore.c:488
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Definition: objfiles.h:286
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void throw_exception(struct gdb_exception exception)
Definition: common-exceptions.c:312
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Definition: objfiles.h:123
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#define target_has_stack
Definition: target.h:1735
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static void write_gcore_file_1(bfd *obfd)
Definition: gcore.c:69
gdbcore.h
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CORE_ADDR get_frame_base(struct frame_info *fi)
Definition: frame.c:2544
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int target_read_memory(CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
Definition: target.c:1370
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Definition: infcmd.c:94
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#define obj_section_addr(s)
Definition: objfiles.h:140
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Definition: agent.c:65
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int gdbarch_make_corefile_notes_p(struct gdbarch *gdbarch)
Definition: gdbarch.c:3654
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static void gcore_copy_callback(bfd *obfd, asection *osec, void *ignored)
Definition: gcore.c:545
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#define target_make_corefile_notes(BFD, SIZE_P)
Definition: target.h:1861
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T * get() const
Definition: gdb_ref_ptr.h:130
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void target_done_generating_core(void)
Definition: target.c:3772
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gdb::def_vector< gdb_byte > byte_vector
Definition: byte-vector.h:58
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Definition: common-exceptions.h:111
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struct value * call_function_by_hand(struct value *function, type *default_return_type, int nargs, struct value **args)
Definition: infcall.c:690
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static int gcore_create_callback(CORE_ADDR vaddr, unsigned long size, int read, int write, int exec, int modified, void *data)
Definition: gcore.c:402
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Definition: gdb_unlinker.h:31
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gdb_bfd_ref_ptr gdb_bfd_openw(const char *filename, const char *target)
Definition: gdb_bfd.c:794
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const struct bfd_arch_info * gdbarch_bfd_arch_info(struct gdbarch *gdbarch)
Definition: gdbarch.c:1500
regset.h
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int gdbarch_gcore_bfd_target_p(struct gdbarch *gdbarch)
Definition: gdbarch.c:3822
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struct cmd_list_element * add_com(const char *name, enum command_class theclass, cmd_const_cfunc_ftype *fun, const char *doc)
Definition: cli-decode.c:902
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static void gcore_command(const char *args, int from_tty)
Definition: gcore.c:141
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int(* find_memory_region_ftype)(CORE_ADDR addr, unsigned long size, int read, int write, int exec, int modified, void *data)
Definition: defs.h:371
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struct bound_minimal_symbol lookup_minimal_symbol(const char *name, const char *sfile, struct objfile *objf)
Definition: minsyms.c:311
noprocess
void noprocess(void)
Definition: target.c:548
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Definition: errors.c:38
size
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Definition: go32-nat.c:242
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struct gdbarch * get_frame_arch(struct frame_info *this_frame)
Definition: frame.c:2691
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int solib_keep_data_in_core(CORE_ADDR vaddr, unsigned long size)
Definition: solib.c:1190
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long long LONGEST
Definition: common-types.h:52
symfile.h
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enum return_reason reason
Definition: common-exceptions.h:113
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#define gdb_stdout
Definition: utils.h:340
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static int derive_stack_segment(bfd_vma *bottom, bfd_vma *top)
Definition: gcore.c:228