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/tmp/gdb-7.10/gdb/gcore.c
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1 /* Generate a core file for the inferior process.
2 
3  Copyright (C) 2001-2015 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 
38 /* The largest amount of memory to read from the target at once. We
39  must throttle it to limit the amount of memory used by GDB during
40  generate-core-file for programs with large resident data. */
41 #define MAX_COPY_BYTES (1024 * 1024)
42 
43 static const char *default_gcore_target (void);
44 static enum bfd_architecture default_gcore_arch (void);
45 static unsigned long default_gcore_mach (void);
46 static int gcore_memory_sections (bfd *);
47 
48 /* create_gcore_bfd -- helper for gcore_command (exported).
49  Open a new bfd core file for output, and return the handle. */
50 
51 bfd *
52 create_gcore_bfd (const char *filename)
53 {
54  bfd *obfd = gdb_bfd_openw (filename, default_gcore_target ());
55 
56  if (!obfd)
57  error (_("Failed to open '%s' for output."), filename);
58  bfd_set_format (obfd, bfd_core);
59  bfd_set_arch_mach (obfd, default_gcore_arch (), default_gcore_mach ());
60  return obfd;
61 }
62 
63 /* write_gcore_file_1 -- do the actual work of write_gcore_file. */
64 
65 static void
66 write_gcore_file_1 (bfd *obfd)
67 {
68  struct cleanup *cleanup;
69  void *note_data = NULL;
70  int note_size = 0;
71  asection *note_sec = NULL;
72 
73  /* An external target method must build the notes section. */
74  /* FIXME: uweigand/2011-10-06: All architectures that support core file
75  generation should be converted to gdbarch_make_corefile_notes; at that
76  point, the target vector method can be removed. */
78  note_data = target_make_corefile_notes (obfd, &note_size);
79  else
80  note_data = gdbarch_make_corefile_notes (target_gdbarch (), obfd, &note_size);
81 
82  cleanup = make_cleanup (xfree, note_data);
83 
84  if (note_data == NULL || note_size == 0)
85  error (_("Target does not support core file generation."));
86 
87  /* Create the note section. */
88  note_sec = bfd_make_section_anyway_with_flags (obfd, "note0",
89  SEC_HAS_CONTENTS
90  | SEC_READONLY
91  | SEC_ALLOC);
92  if (note_sec == NULL)
93  error (_("Failed to create 'note' section for corefile: %s"),
94  bfd_errmsg (bfd_get_error ()));
95 
96  bfd_set_section_vma (obfd, note_sec, 0);
97  bfd_set_section_alignment (obfd, note_sec, 0);
98  bfd_set_section_size (obfd, note_sec, note_size);
99 
100  /* Now create the memory/load sections. */
101  if (gcore_memory_sections (obfd) == 0)
102  error (_("gcore: failed to get corefile memory sections from target."));
103 
104  /* Write out the contents of the note section. */
105  if (!bfd_set_section_contents (obfd, note_sec, note_data, 0, note_size))
106  warning (_("writing note section (%s)"), bfd_errmsg (bfd_get_error ()));
107 
108  do_cleanups (cleanup);
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 
120 
121  TRY
122  {
123  write_gcore_file_1 (obfd);
124  }
126  {
127  except = e;
128  }
129  END_CATCH
130 
132 
133  if (except.reason < 0)
134  throw_exception (except);
135 }
136 
137 static void
139 {
140  bfd *obfd = arg;
141  const char *filename = obfd->filename;
142 
143  gdb_bfd_unref (arg);
144  unlink (filename);
145 }
146 
147 /* gcore_command -- implements the 'gcore' command.
148  Generate a core file from the inferior process. */
149 
150 static void
151 gcore_command (char *args, int from_tty)
152 {
153  struct cleanup *filename_chain;
154  struct cleanup *bfd_chain;
155  char *corefilename;
156  bfd *obfd;
157 
158  /* No use generating a corefile without a target process. */
160  noprocess ();
161 
162  if (args && *args)
163  corefilename = tilde_expand (args);
164  else
165  {
166  /* Default corefile name is "core.PID". */
167  corefilename = xstrprintf ("core.%d", ptid_get_pid (inferior_ptid));
168  }
169  filename_chain = make_cleanup (xfree, corefilename);
170 
171  if (info_verbose)
173  "Opening corefile '%s' for output.\n", corefilename);
174 
175  /* Open the output file. */
176  obfd = create_gcore_bfd (corefilename);
177 
178  /* Need a cleanup that will close and delete the file. */
179  bfd_chain = make_cleanup (do_bfd_delete_cleanup, obfd);
180 
181  /* Call worker function. */
182  write_gcore_file (obfd);
183 
184  /* Succeeded. */
185  discard_cleanups (bfd_chain);
186  gdb_bfd_unref (obfd);
187 
188  fprintf_filtered (gdb_stdout, "Saved corefile %s\n", corefilename);
189  do_cleanups (filename_chain);
190 }
191 
192 static unsigned long
194 {
195 #if 1 /* See if this even matters... */
196  return 0;
197 #else
198 
199  const struct bfd_arch_info *bfdarch = gdbarch_bfd_arch_info (target_gdbarch ());
200 
201  if (bfdarch != NULL)
202  return bfdarch->mach;
203  if (exec_bfd == NULL)
204  error (_("Can't find default bfd machine type (need execfile)."));
205 
206  return bfd_get_mach (exec_bfd);
207 #endif /* 1 */
208 }
209 
210 static enum bfd_architecture
212 {
213  const struct bfd_arch_info *bfdarch = gdbarch_bfd_arch_info (target_gdbarch ());
214 
215  if (bfdarch != NULL)
216  return bfdarch->arch;
217  if (exec_bfd == NULL)
218  error (_("Can't find bfd architecture for corefile (need execfile)."));
219 
220  return bfd_get_arch (exec_bfd);
221 }
222 
223 static const char *
225 {
226  /* The gdbarch may define a target to use for core files. */
229 
230  /* Otherwise, try to fall back to the exec_bfd target. This will probably
231  not work for non-ELF targets. */
232  if (exec_bfd == NULL)
233  return NULL;
234  else
235  return bfd_get_target (exec_bfd);
236 }
237 
238 /* Derive a reasonable stack segment by unwinding the target stack,
239  and store its limits in *BOTTOM and *TOP. Return non-zero if
240  successful. */
241 
242 static int
243 derive_stack_segment (bfd_vma *bottom, bfd_vma *top)
244 {
245  struct frame_info *fi, *tmp_fi;
246 
247  gdb_assert (bottom);
248  gdb_assert (top);
249 
250  /* Can't succeed without stack and registers. */
252  return 0;
253 
254  /* Can't succeed without current frame. */
255  fi = get_current_frame ();
256  if (fi == NULL)
257  return 0;
258 
259  /* Save frame pointer of TOS frame. */
260  *top = get_frame_base (fi);
261  /* If current stack pointer is more "inner", use that instead. */
262  if (gdbarch_inner_than (get_frame_arch (fi), get_frame_sp (fi), *top))
263  *top = get_frame_sp (fi);
264 
265  /* Find prev-most frame. */
266  while ((tmp_fi = get_prev_frame (fi)) != NULL)
267  fi = tmp_fi;
268 
269  /* Save frame pointer of prev-most frame. */
270  *bottom = get_frame_base (fi);
271 
272  /* Now canonicalize their order, so that BOTTOM is a lower address
273  (as opposed to a lower stack frame). */
274  if (*bottom > *top)
275  {
276  bfd_vma tmp_vma;
277 
278  tmp_vma = *top;
279  *top = *bottom;
280  *bottom = tmp_vma;
281  }
282 
283  return 1;
284 }
285 
286 /* call_target_sbrk --
287  helper function for derive_heap_segment. */
288 
289 static bfd_vma
290 call_target_sbrk (int sbrk_arg)
291 {
292  struct objfile *sbrk_objf;
293  struct gdbarch *gdbarch;
294  bfd_vma top_of_heap;
295  struct value *target_sbrk_arg;
296  struct value *sbrk_fn, *ret;
297  bfd_vma tmp;
298 
299  if (lookup_minimal_symbol ("sbrk", NULL, NULL).minsym != NULL)
300  {
301  sbrk_fn = find_function_in_inferior ("sbrk", &sbrk_objf);
302  if (sbrk_fn == NULL)
303  return (bfd_vma) 0;
304  }
305  else if (lookup_minimal_symbol ("_sbrk", NULL, NULL).minsym != NULL)
306  {
307  sbrk_fn = find_function_in_inferior ("_sbrk", &sbrk_objf);
308  if (sbrk_fn == NULL)
309  return (bfd_vma) 0;
310  }
311  else
312  return (bfd_vma) 0;
313 
314  gdbarch = get_objfile_arch (sbrk_objf);
315  target_sbrk_arg = value_from_longest (builtin_type (gdbarch)->builtin_int,
316  sbrk_arg);
317  gdb_assert (target_sbrk_arg);
318  ret = call_function_by_hand (sbrk_fn, 1, &target_sbrk_arg);
319  if (ret == NULL)
320  return (bfd_vma) 0;
321 
322  tmp = value_as_long (ret);
323  if ((LONGEST) tmp <= 0 || (LONGEST) tmp == 0xffffffff)
324  return (bfd_vma) 0;
325 
326  top_of_heap = tmp;
327  return top_of_heap;
328 }
329 
330 /* Derive a reasonable heap segment for ABFD by looking at sbrk and
331  the static data sections. Store its limits in *BOTTOM and *TOP.
332  Return non-zero if successful. */
333 
334 static int
335 derive_heap_segment (bfd *abfd, bfd_vma *bottom, bfd_vma *top)
336 {
337  bfd_vma top_of_data_memory = 0;
338  bfd_vma top_of_heap = 0;
339  bfd_size_type sec_size;
340  bfd_vma sec_vaddr;
341  asection *sec;
342 
343  gdb_assert (bottom);
344  gdb_assert (top);
345 
346  /* This function depends on being able to call a function in the
347  inferior. */
349  return 0;
350 
351  /* The following code assumes that the link map is arranged as
352  follows (low to high addresses):
353 
354  ---------------------------------
355  | text sections |
356  ---------------------------------
357  | data sections (including bss) |
358  ---------------------------------
359  | heap |
360  --------------------------------- */
361 
362  for (sec = abfd->sections; sec; sec = sec->next)
363  {
364  if (bfd_get_section_flags (abfd, sec) & SEC_DATA
365  || strcmp (".bss", bfd_section_name (abfd, sec)) == 0)
366  {
367  sec_vaddr = bfd_get_section_vma (abfd, sec);
368  sec_size = bfd_get_section_size (sec);
369  if (sec_vaddr + sec_size > top_of_data_memory)
370  top_of_data_memory = sec_vaddr + sec_size;
371  }
372  }
373 
374  top_of_heap = call_target_sbrk (0);
375  if (top_of_heap == (bfd_vma) 0)
376  return 0;
377 
378  /* Return results. */
379  if (top_of_heap > top_of_data_memory)
380  {
381  *bottom = top_of_data_memory;
382  *top = top_of_heap;
383  return 1;
384  }
385 
386  /* No additional heap space needs to be saved. */
387  return 0;
388 }
389 
390 static void
391 make_output_phdrs (bfd *obfd, asection *osec, void *ignored)
392 {
393  int p_flags = 0;
394  int p_type = 0;
395 
396  /* FIXME: these constants may only be applicable for ELF. */
397  if (startswith (bfd_section_name (obfd, osec), "load"))
398  p_type = PT_LOAD;
399  else if (startswith (bfd_section_name (obfd, osec), "note"))
400  p_type = PT_NOTE;
401  else
402  p_type = PT_NULL;
403 
404  p_flags |= PF_R; /* Segment is readable. */
405  if (!(bfd_get_section_flags (obfd, osec) & SEC_READONLY))
406  p_flags |= PF_W; /* Segment is writable. */
407  if (bfd_get_section_flags (obfd, osec) & SEC_CODE)
408  p_flags |= PF_X; /* Segment is executable. */
409 
410  bfd_record_phdr (obfd, p_type, 1, p_flags, 0, 0, 0, 0, 1, &osec);
411 }
412 
413 /* find_memory_region_ftype implementation. DATA is 'bfd *' for the core file
414  GDB is creating. */
415 
416 static int
417 gcore_create_callback (CORE_ADDR vaddr, unsigned long size, int read,
418  int write, int exec, int modified, void *data)
419 {
420  bfd *obfd = data;
421  asection *osec;
422  flagword flags = SEC_ALLOC | SEC_HAS_CONTENTS | SEC_LOAD;
423 
424  /* If the memory segment has no permissions set, ignore it, otherwise
425  when we later try to access it for read/write, we'll get an error
426  or jam the kernel. */
427  if (read == 0 && write == 0 && exec == 0 && modified == 0)
428  {
429  if (info_verbose)
430  {
431  fprintf_filtered (gdb_stdout, "Ignore segment, %s bytes at %s\n",
432  plongest (size), paddress (target_gdbarch (), vaddr));
433  }
434 
435  return 0;
436  }
437 
438  if (write == 0 && modified == 0 && !solib_keep_data_in_core (vaddr, size))
439  {
440  /* See if this region of memory lies inside a known file on disk.
441  If so, we can avoid copying its contents by clearing SEC_LOAD. */
442  struct objfile *objfile;
443  struct obj_section *objsec;
444 
445  ALL_OBJSECTIONS (objfile, objsec)
446  {
447  bfd *abfd = objfile->obfd;
448  asection *asec = objsec->the_bfd_section;
449  bfd_vma align = (bfd_vma) 1 << bfd_get_section_alignment (abfd,
450  asec);
451  bfd_vma start = obj_section_addr (objsec) & -align;
452  bfd_vma end = (obj_section_endaddr (objsec) + align - 1) & -align;
453 
454  /* Match if either the entire memory region lies inside the
455  section (i.e. a mapping covering some pages of a large
456  segment) or the entire section lies inside the memory region
457  (i.e. a mapping covering multiple small sections).
458 
459  This BFD was synthesized from reading target memory,
460  we don't want to omit that. */
461  if (objfile->separate_debug_objfile_backlink == NULL
462  && ((vaddr >= start && vaddr + size <= end)
463  || (start >= vaddr && end <= vaddr + size))
464  && !(bfd_get_file_flags (abfd) & BFD_IN_MEMORY))
465  {
466  flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
467  goto keep; /* Break out of two nested for loops. */
468  }
469  }
470 
471  keep:;
472  }
473 
474  if (write == 0)
475  flags |= SEC_READONLY;
476 
477  if (exec)
478  flags |= SEC_CODE;
479  else
480  flags |= SEC_DATA;
481 
482  osec = bfd_make_section_anyway_with_flags (obfd, "load", flags);
483  if (osec == NULL)
484  {
485  warning (_("Couldn't make gcore segment: %s"),
486  bfd_errmsg (bfd_get_error ()));
487  return 1;
488  }
489 
490  if (info_verbose)
491  {
492  fprintf_filtered (gdb_stdout, "Save segment, %s bytes at %s\n",
493  plongest (size), paddress (target_gdbarch (), vaddr));
494  }
495 
496  bfd_set_section_size (obfd, osec, size);
497  bfd_set_section_vma (obfd, osec, vaddr);
498  bfd_section_lma (obfd, osec) = 0; /* ??? bfd_set_section_lma? */
499  return 0;
500 }
501 
502 int
504  find_memory_region_ftype func, void *obfd)
505 {
506  /* Use objfile data to create memory sections. */
507  struct objfile *objfile;
508  struct obj_section *objsec;
509  bfd_vma temp_bottom, temp_top;
510 
511  /* Call callback function for each objfile section. */
512  ALL_OBJSECTIONS (objfile, objsec)
513  {
514  bfd *ibfd = objfile->obfd;
515  asection *isec = objsec->the_bfd_section;
516  flagword flags = bfd_get_section_flags (ibfd, isec);
517 
518  /* Separate debug info files are irrelevant for gcore. */
519  if (objfile->separate_debug_objfile_backlink != NULL)
520  continue;
521 
522  if ((flags & SEC_ALLOC) || (flags & SEC_LOAD))
523  {
524  int size = bfd_section_size (ibfd, isec);
525  int ret;
526 
527  ret = (*func) (obj_section_addr (objsec), size,
528  1, /* All sections will be readable. */
529  (flags & SEC_READONLY) == 0, /* Writable. */
530  (flags & SEC_CODE) != 0, /* Executable. */
531  1, /* MODIFIED is unknown, pass it as true. */
532  obfd);
533  if (ret != 0)
534  return ret;
535  }
536  }
537 
538  /* Make a stack segment. */
539  if (derive_stack_segment (&temp_bottom, &temp_top))
540  (*func) (temp_bottom, temp_top - temp_bottom,
541  1, /* Stack section will be readable. */
542  1, /* Stack section will be writable. */
543  0, /* Stack section will not be executable. */
544  1, /* Stack section will be modified. */
545  obfd);
546 
547  /* Make a heap segment. */
548  if (derive_heap_segment (exec_bfd, &temp_bottom, &temp_top))
549  (*func) (temp_bottom, temp_top - temp_bottom,
550  1, /* Heap section will be readable. */
551  1, /* Heap section will be writable. */
552  0, /* Heap section will not be executable. */
553  1, /* Heap section will be modified. */
554  obfd);
555 
556  return 0;
557 }
558 
559 static void
560 gcore_copy_callback (bfd *obfd, asection *osec, void *ignored)
561 {
562  bfd_size_type size, total_size = bfd_section_size (obfd, osec);
563  file_ptr offset = 0;
564  struct cleanup *old_chain = NULL;
565  void *memhunk;
566 
567  /* Read-only sections are marked; we don't have to copy their contents. */
568  if ((bfd_get_section_flags (obfd, osec) & SEC_LOAD) == 0)
569  return;
570 
571  /* Only interested in "load" sections. */
572  if (!startswith (bfd_section_name (obfd, osec), "load"))
573  return;
574 
575  size = min (total_size, MAX_COPY_BYTES);
576  memhunk = xmalloc (size);
577  old_chain = make_cleanup (xfree, memhunk);
578 
579  while (total_size > 0)
580  {
581  if (size > total_size)
582  size = total_size;
583 
584  if (target_read_memory (bfd_section_vma (obfd, osec) + offset,
585  memhunk, size) != 0)
586  {
587  warning (_("Memory read failed for corefile "
588  "section, %s bytes at %s."),
589  plongest (size),
590  paddress (target_gdbarch (), bfd_section_vma (obfd, osec)));
591  break;
592  }
593  if (!bfd_set_section_contents (obfd, osec, memhunk, offset, size))
594  {
595  warning (_("Failed to write corefile contents (%s)."),
596  bfd_errmsg (bfd_get_error ()));
597  break;
598  }
599 
600  total_size -= size;
601  offset += size;
602  }
603 
604  do_cleanups (old_chain); /* Frees MEMHUNK. */
605 }
606 
607 static int
609 {
610  /* Try gdbarch method first, then fall back to target method. */
613  gcore_create_callback, obfd) != 0)
614  {
616  return 0; /* FIXME: error return/msg? */
617  }
618 
619  /* Record phdrs for section-to-segment mapping. */
620  bfd_map_over_sections (obfd, make_output_phdrs, NULL);
621 
622  /* Copy memory region contents. */
623  bfd_map_over_sections (obfd, gcore_copy_callback, NULL);
624 
625  return 1;
626 }
627 
628 /* Provide a prototype to silence -Wmissing-prototypes. */
630 
631 void
633 {
634  add_com ("generate-core-file", class_files, gcore_command, _("\
635 Save a core file with the current state of the debugged process.\n\
636 Argument is optional filename. Default filename is 'core.<process_id>'."));
637 
638  add_com_alias ("gcore", "generate-core-file", class_files, 1);
639 }
struct gdbarch * target_gdbarch(void)
Definition: gdbarch.c:5143
ssize_t read(int fd, void *buf, size_t count)
Definition: expect-read1.c:26
static int derive_heap_segment(bfd *abfd, bfd_vma *bottom, bfd_vma *top)
Definition: gcore.c:335
char * gdbarch_make_corefile_notes(struct gdbarch *gdbarch, bfd *obfd, int *note_size)
Definition: gdbarch.c:3412
#define target_has_registers
Definition: target.h:1710
struct value * call_function_by_hand(struct value *function, int nargs, struct value **args)
Definition: infcall.c:488
bfd * obfd
Definition: objfiles.h:313
static void make_output_phdrs(bfd *obfd, asection *osec, void *ignored)
Definition: gcore.c:391
struct frame_info * get_current_frame(void)
Definition: frame.c:1461
bfd_vma CORE_ADDR
Definition: common-types.h:41
static bfd_vma call_target_sbrk(int sbrk_arg)
Definition: gcore.c:290
void xfree(void *)
Definition: common-utils.c:97
struct objfile * separate_debug_objfile_backlink
Definition: objfiles.h:401
int gdbarch_inner_than(struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs)
Definition: gdbarch.c:2645
struct frame_info * get_prev_frame(struct frame_info *this_frame)
Definition: frame.c:2122
LONGEST value_as_long(struct value *val)
Definition: value.c:2654
void(* func)(char *)
struct bfd_section * the_bfd_section
Definition: objfiles.h:121
void warning(const char *fmt,...)
Definition: errors.c:26
#define target_find_memory_regions(FUNC, DATA)
Definition: target.h:1807
struct ui_file * gdb_stdout
Definition: main.c:71
CORE_ADDR get_frame_sp(struct frame_info *this_frame)
Definition: frame.c:2577
#define obj_section_endaddr(s)
Definition: objfiles.h:141
int info_verbose
Definition: top.c:1699
const struct gdb_exception exception_none
#define ALL_OBJSECTIONS(objfile, osect)
Definition: objfiles.h:660
void target_prepare_to_generate_core(void)
Definition: target.c:3720
#define _(String)
Definition: gdb_locale.h:40
static void do_bfd_delete_cleanup(void *arg)
Definition: gcore.c:138
#define END_CATCH
const char * paddress(struct gdbarch *gdbarch, CORE_ADDR addr)
Definition: utils.c:2743
static unsigned long default_gcore_mach(void)
Definition: gcore.c:193
initialize_file_ftype _initialize_gcore
#define obj_section_addr(s)
Definition: objfiles.h:135
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:1885
#define TRY
const char * gdbarch_gcore_bfd_target(struct gdbarch *gdbarch)
Definition: gdbarch.c:3556
int gdbarch_find_memory_regions(struct gdbarch *gdbarch, find_memory_region_ftype func, void *data)
Definition: gdbarch.c:3460
#define CATCH(EXCEPTION, MASK)
void gdb_bfd_unref(struct bfd *abfd)
Definition: gdb_bfd.c:475
void initialize_file_ftype(void)
Definition: defs.h:281
int gdbarch_find_memory_regions_p(struct gdbarch *gdbarch)
Definition: gdbarch.c:3453
#define exec_bfd
Definition: exec.h:32
void fprintf_filtered(struct ui_file *stream, const char *format,...)
Definition: utils.c:2351
struct value * find_function_in_inferior(const char *name, struct objfile **objf_p)
Definition: valops.c:128
struct cmd_list_element * add_com_alias(const char *name, const char *oldname, enum command_class theclass, int abbrev_flag)
Definition: cli-decode.c:882
struct cleanup * make_cleanup(make_cleanup_ftype *function, void *arg)
Definition: cleanups.c:117
struct gdbarch * get_objfile_arch(const struct objfile *objfile)
Definition: objfiles.c:368
static enum bfd_architecture default_gcore_arch(void)
Definition: gcore.c:211
static const char * default_gcore_target(void)
Definition: gcore.c:224
#define gdb_assert(expr)
Definition: gdb_assert.h:33
struct value * value_from_longest(struct type *type, LONGEST num)
Definition: value.c:3464
void write_gcore_file(bfd *obfd)
Definition: gcore.c:115
#define min(a, b)
Definition: defs.h:106
static int startswith(const char *string, const char *pattern)
Definition: common-utils.h:75
#define target_has_execution
Definition: target.h:1726
static int gcore_memory_sections(bfd *)
Definition: gcore.c:608
char * xstrprintf(const char *format,...)
Definition: common-utils.c:107
void * xmalloc(YYSIZE_T)
#define MAX_COPY_BYTES
Definition: gcore.c:41
Definition: value.c:172
int objfile_find_memory_regions(struct target_ops *self, find_memory_region_ftype func, void *obfd)
Definition: gcore.c:503
int ptid_get_pid(ptid_t ptid)
Definition: ptid.c:52
bfd * gdb_bfd_openw(const char *filename, const char *target)
Definition: gdb_bfd.c:702
void throw_exception(struct gdb_exception exception)
void discard_cleanups(struct cleanup *old_chain)
Definition: cleanups.c:213
#define target_has_stack
Definition: target.h:1705
static void write_gcore_file_1(bfd *obfd)
Definition: gcore.c:66
CORE_ADDR get_frame_base(struct frame_info *fi)
Definition: frame.c:2388
int target_read_memory(CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
Definition: target.c:1393
ptid_t inferior_ptid
Definition: infcmd.c:124
int offset
Definition: agent.c:65
int gdbarch_make_corefile_notes_p(struct gdbarch *gdbarch)
Definition: gdbarch.c:3405
static void gcore_copy_callback(bfd *obfd, asection *osec, void *ignored)
Definition: gcore.c:560
#define target_make_corefile_notes(BFD, SIZE_P)
Definition: target.h:1814
void target_done_generating_core(void)
Definition: target.c:3728
bfd * create_gcore_bfd(const char *filename)
Definition: gcore.c:52
static void gcore_command(char *args, int from_tty)
Definition: gcore.c:151
static int gcore_create_callback(CORE_ADDR vaddr, unsigned long size, int read, int write, int exec, int modified, void *data)
Definition: gcore.c:417
const struct bfd_arch_info * gdbarch_bfd_arch_info(struct gdbarch *gdbarch)
Definition: gdbarch.c:1411
int gdbarch_gcore_bfd_target_p(struct gdbarch *gdbarch)
Definition: gdbarch.c:3549
int(* find_memory_region_ftype)(CORE_ADDR addr, unsigned long size, int read, int write, int exec, int modified, void *data)
Definition: defs.h:343
struct bound_minimal_symbol lookup_minimal_symbol(const char *name, const char *sfile, struct objfile *objf)
Definition: minsyms.c:163
void noprocess(void)
Definition: target.c:570
void error(const char *fmt,...)
Definition: errors.c:38
size_t size
Definition: go32-nat.c:242
struct cmd_list_element * add_com(const char *name, enum command_class theclass, cmd_cfunc_ftype *fun, const char *doc)
Definition: cli-decode.c:873
struct gdbarch * get_frame_arch(struct frame_info *this_frame)
Definition: frame.c:2535
int solib_keep_data_in_core(CORE_ADDR vaddr, unsigned long size)
Definition: solib.c:1209
long long LONGEST
Definition: common-types.h:52
void do_cleanups(struct cleanup *old_chain)
Definition: cleanups.c:175
enum return_reason reason
static int derive_stack_segment(bfd_vma *bottom, bfd_vma *top)
Definition: gcore.c:243