1 /* Work with executable files, for GDB.
3 Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
4 1998, 1999, 2000, 2001, 2002, 2003, 2007, 2008, 2009, 2010
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "completer.h"
34 #include "arch-utils.h"
35 #include "gdbthread.h"
36 #include "progspace.h"
39 #include "readline/readline.h"
40 #include "gdb_string.h"
47 #include "xcoffsolib.h"
49 struct vmap
*map_vmap (bfd
*, bfd
*);
51 void (*deprecated_file_changed_hook
) (char *);
53 /* Prototypes for local functions */
55 static void file_command (char *, int);
57 static void set_section_command (char *, int);
59 static void exec_files_info (struct target_ops
*);
61 static void init_exec_ops (void);
63 void _initialize_exec (void);
65 /* The target vector for executable files. */
67 struct target_ops exec_ops
;
69 /* True if the exec target is pushed on the stack. */
70 static int using_exec_ops
;
72 /* Whether to open exec and core files read-only or read-write. */
76 show_write_files (struct ui_file
*file
, int from_tty
,
77 struct cmd_list_element
*c
, const char *value
)
79 fprintf_filtered (file
, _("Writing into executable and core files is %s.\n"),
87 exec_open (char *args
, int from_tty
)
89 target_preopen (from_tty
);
90 exec_file_attach (args
, from_tty
);
93 /* Close and clear exec_bfd. If we end up with no target sections to
94 read memory from, this unpushes the exec_ops target. */
101 bfd
*abfd
= exec_bfd
;
102 char *name
= bfd_get_filename (abfd
);
104 if (!bfd_close (abfd
))
105 warning (_("cannot close \"%s\": %s"),
106 name
, bfd_errmsg (bfd_get_error ()));
109 /* Removing target sections may close the exec_ops target.
110 Clear exec_bfd before doing so to prevent recursion. */
114 remove_target_sections (abfd
);
118 /* This is the target_close implementation. Clears all target
119 sections and closes all executable bfds from all program spaces. */
122 exec_close_1 (int quitting
)
124 int need_symtab_cleanup
= 0;
125 struct vmap
*vp
, *nxt
;
129 for (nxt
= vmap
; nxt
!= NULL
;)
134 /* if there is an objfile associated with this bfd,
135 free_objfile() will do proper cleanup of objfile *and* bfd. */
139 free_objfile (vp
->objfile
);
140 need_symtab_cleanup
= 1;
142 else if (vp
->bfd
!= exec_bfd
)
143 /* FIXME-leak: We should be freeing vp->name too, I think. */
144 if (!bfd_close (vp
->bfd
))
145 warning (_("cannot close \"%s\": %s"),
146 vp
->name
, bfd_errmsg (bfd_get_error ()));
154 struct program_space
*ss
;
155 struct cleanup
*old_chain
;
157 old_chain
= save_current_program_space ();
160 set_current_program_space (ss
);
162 /* Delete all target sections. */
164 (current_target_sections
,
165 -resize_section_table (current_target_sections
, 0));
170 do_cleanups (old_chain
);
175 exec_file_clear (int from_tty
)
177 /* Remove exec file. */
181 printf_unfiltered (_("No executable file now.\n"));
184 /* Set FILENAME as the new exec file.
186 This function is intended to be behave essentially the same
187 as exec_file_command, except that the latter will detect when
188 a target is being debugged, and will ask the user whether it
189 should be shut down first. (If the answer is "no", then the
190 new file is ignored.)
192 This file is used by exec_file_command, to do the work of opening
193 and processing the exec file after any prompting has happened.
195 And, it is used by child_attach, when the attach command was
196 given a pid but not a exec pathname, and the attach command could
197 figure out the pathname from the pid. (In this case, we shouldn't
198 ask the user whether the current target should be shut down --
199 we're supplying the exec pathname late for good reason.) */
202 exec_file_attach (char *filename
, int from_tty
)
204 /* Remove any previous exec file. */
207 /* Now open and digest the file the user requested, if any. */
212 printf_unfiltered (_("No executable file now.\n"));
214 set_gdbarch_from_file (NULL
);
218 struct cleanup
*cleanups
;
219 char *scratch_pathname
;
221 struct target_section
*sections
= NULL
, *sections_end
= NULL
;
224 scratch_chan
= openp (getenv ("PATH"), OPF_TRY_CWD_FIRST
, filename
,
225 write_files
? O_RDWR
| O_BINARY
: O_RDONLY
| O_BINARY
,
227 #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
228 if (scratch_chan
< 0)
230 char *exename
= alloca (strlen (filename
) + 5);
231 strcat (strcpy (exename
, filename
), ".exe");
232 scratch_chan
= openp (getenv ("PATH"), OPF_TRY_CWD_FIRST
, exename
,
233 write_files
? O_RDWR
| O_BINARY
: O_RDONLY
| O_BINARY
,
237 if (scratch_chan
< 0)
238 perror_with_name (filename
);
239 exec_bfd
= bfd_fopen (scratch_pathname
, gnutarget
,
240 write_files
? FOPEN_RUB
: FOPEN_RB
,
245 close (scratch_chan
);
246 error (_("\"%s\": could not open as an executable file: %s"),
247 scratch_pathname
, bfd_errmsg (bfd_get_error ()));
250 /* At this point, scratch_pathname and exec_bfd->name both point to the
251 same malloc'd string. However exec_close() will attempt to free it
252 via the exec_bfd->name pointer, so we need to make another copy and
253 leave exec_bfd as the new owner of the original copy. */
254 scratch_pathname
= xstrdup (scratch_pathname
);
255 cleanups
= make_cleanup (xfree
, scratch_pathname
);
257 if (!bfd_check_format_matches (exec_bfd
, bfd_object
, &matching
))
259 /* Make sure to close exec_bfd, or else "run" might try to use
262 error (_("\"%s\": not in executable format: %s"),
264 gdb_bfd_errmsg (bfd_get_error (), matching
));
267 /* FIXME - This should only be run for RS6000, but the ifdef is a poor
268 way to accomplish. */
269 #ifdef DEPRECATED_IBM6000_TARGET
270 /* Setup initial vmap. */
272 map_vmap (exec_bfd
, 0);
275 /* Make sure to close exec_bfd, or else "run" might try to use
278 error (_("\"%s\": can't find the file sections: %s"),
279 scratch_pathname
, bfd_errmsg (bfd_get_error ()));
281 #endif /* DEPRECATED_IBM6000_TARGET */
283 if (build_section_table (exec_bfd
, §ions
, §ions_end
))
285 /* Make sure to close exec_bfd, or else "run" might try to use
288 error (_("\"%s\": can't find the file sections: %s"),
289 scratch_pathname
, bfd_errmsg (bfd_get_error ()));
292 exec_bfd_mtime
= bfd_get_mtime (exec_bfd
);
296 set_gdbarch_from_file (exec_bfd
);
298 /* Add the executable's sections to the current address spaces'
299 list of sections. This possibly pushes the exec_ops
301 add_target_sections (sections
, sections_end
);
304 /* Tell display code (if any) about the changed file name. */
305 if (deprecated_exec_file_display_hook
)
306 (*deprecated_exec_file_display_hook
) (filename
);
308 do_cleanups (cleanups
);
310 bfd_cache_close_all ();
311 observer_notify_executable_changed ();
314 /* Process the first arg in ARGS as the new exec file.
316 Note that we have to explicitly ignore additional args, since we can
317 be called from file_command(), which also calls symbol_file_command()
318 which can take multiple args.
320 If ARGS is NULL, we just want to close the exec file. */
323 exec_file_command (char *args
, int from_tty
)
328 if (from_tty
&& target_has_execution
329 && !query (_("A program is being debugged already.\n"
330 "Are you sure you want to change the file? ")))
331 error (_("File not changed."));
335 struct cleanup
*cleanups
;
337 /* Scan through the args and pick up the first non option arg
340 argv
= gdb_buildargv (args
);
341 cleanups
= make_cleanup_freeargv (argv
);
343 for (; (*argv
!= NULL
) && (**argv
== '-'); argv
++)
347 error (_("No executable file name was specified"));
349 filename
= tilde_expand (*argv
);
350 make_cleanup (xfree
, filename
);
351 exec_file_attach (filename
, from_tty
);
353 do_cleanups (cleanups
);
356 exec_file_attach (NULL
, from_tty
);
359 /* Set both the exec file and the symbol file, in one command.
360 What a novelty. Why did GDB go through four major releases before this
361 command was added? */
364 file_command (char *arg
, int from_tty
)
366 /* FIXME, if we lose on reading the symbol file, we should revert
367 the exec file, but that's rough. */
368 exec_file_command (arg
, from_tty
);
369 symbol_file_command (arg
, from_tty
);
370 if (deprecated_file_changed_hook
)
371 deprecated_file_changed_hook (arg
);
375 /* Locate all mappable sections of a BFD file.
376 table_pp_char is a char * to get it through bfd_map_over_sections;
377 we cast it back to its proper type. */
380 add_to_section_table (bfd
*abfd
, struct bfd_section
*asect
,
383 struct target_section
**table_pp
= (struct target_section
**) table_pp_char
;
386 /* Check the section flags, but do not discard zero-length sections, since
387 some symbols may still be attached to this section. For instance, we
388 encountered on sparc-solaris 2.10 a shared library with an empty .bss
389 section to which a symbol named "_end" was attached. The address
390 of this symbol still needs to be relocated. */
391 aflag
= bfd_get_section_flags (abfd
, asect
);
392 if (!(aflag
& SEC_ALLOC
))
395 (*table_pp
)->bfd
= abfd
;
396 (*table_pp
)->the_bfd_section
= asect
;
397 (*table_pp
)->addr
= bfd_section_vma (abfd
, asect
);
398 (*table_pp
)->endaddr
= (*table_pp
)->addr
+ bfd_section_size (abfd
, asect
);
403 resize_section_table (struct target_section_table
*table
, int num_added
)
405 struct target_section
*old_value
;
409 old_value
= table
->sections
;
410 old_count
= table
->sections_end
- table
->sections
;
412 new_count
= num_added
+ old_count
;
416 table
->sections
= xrealloc (table
->sections
,
417 sizeof (struct target_section
) * new_count
);
418 table
->sections_end
= table
->sections
+ new_count
;
422 xfree (table
->sections
);
423 table
->sections
= table
->sections_end
= NULL
;
429 /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
430 Returns 0 if OK, 1 on error. */
433 build_section_table (struct bfd
*some_bfd
, struct target_section
**start
,
434 struct target_section
**end
)
438 count
= bfd_count_sections (some_bfd
);
441 *start
= (struct target_section
*) xmalloc (count
* sizeof (**start
));
443 bfd_map_over_sections (some_bfd
, add_to_section_table
, (char *) end
);
444 if (*end
> *start
+ count
)
445 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
446 /* We could realloc the table, but it probably loses for most files. */
450 /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the
451 current set of target sections. */
454 add_target_sections (struct target_section
*sections
,
455 struct target_section
*sections_end
)
458 struct target_section_table
*table
= current_target_sections
;
460 count
= sections_end
- sections
;
464 int space
= resize_section_table (table
, count
);
465 memcpy (table
->sections
+ space
,
466 sections
, count
* sizeof (sections
[0]));
468 /* If these are the first file sections we can provide memory
469 from, push the file_stratum target. */
473 push_target (&exec_ops
);
478 /* Remove all target sections taken from ABFD. */
481 remove_target_sections (bfd
*abfd
)
483 struct target_section
*src
, *dest
;
485 struct target_section_table
*table
= current_target_sections
;
487 dest
= table
->sections
;
488 for (src
= table
->sections
; src
< table
->sections_end
; src
++)
489 if (src
->bfd
!= abfd
)
491 /* Keep this section. */
497 /* If we've dropped any sections, resize the section table. */
502 old_count
= resize_section_table (table
, dest
- src
);
504 /* If we don't have any more sections to read memory from,
505 remove the file_stratum target from the stack. */
506 if (old_count
+ (dest
- src
) == 0)
508 struct program_space
*pspace
;
511 if (pspace
->target_sections
.sections
512 != pspace
->target_sections
.sections_end
)
515 unpush_target (&exec_ops
);
522 bfdsec_to_vmap (struct bfd
*abfd
, struct bfd_section
*sect
, void *arg3
)
524 struct vmap_and_bfd
*vmap_bfd
= (struct vmap_and_bfd
*) arg3
;
527 vp
= vmap_bfd
->pvmap
;
529 if ((bfd_get_section_flags (abfd
, sect
) & SEC_LOAD
) == 0)
532 if (strcmp (bfd_section_name (abfd
, sect
), ".text") == 0)
534 vp
->tstart
= bfd_section_vma (abfd
, sect
);
535 vp
->tend
= vp
->tstart
+ bfd_section_size (abfd
, sect
);
536 vp
->tvma
= bfd_section_vma (abfd
, sect
);
537 vp
->toffs
= sect
->filepos
;
539 else if (strcmp (bfd_section_name (abfd
, sect
), ".data") == 0)
541 vp
->dstart
= bfd_section_vma (abfd
, sect
);
542 vp
->dend
= vp
->dstart
+ bfd_section_size (abfd
, sect
);
543 vp
->dvma
= bfd_section_vma (abfd
, sect
);
545 /* Silently ignore other types of sections. (FIXME?) */
548 /* Make a vmap for ABFD which might be a member of the archive ARCH.
549 Return the new vmap. */
552 map_vmap (bfd
*abfd
, bfd
*arch
)
554 struct vmap_and_bfd vmap_bfd
;
555 struct vmap
*vp
, **vpp
;
557 vp
= (struct vmap
*) xmalloc (sizeof (*vp
));
558 memset ((char *) vp
, '\0', sizeof (*vp
));
561 vp
->name
= bfd_get_filename (arch
? arch
: abfd
);
562 vp
->member
= arch
? bfd_get_filename (abfd
) : "";
564 vmap_bfd
.pbfd
= arch
;
566 bfd_map_over_sections (abfd
, bfdsec_to_vmap
, &vmap_bfd
);
568 /* Find the end of the list and append. */
569 for (vpp
= &vmap
; *vpp
; vpp
= &(*vpp
)->nxt
)
578 section_table_xfer_memory_partial (gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
579 ULONGEST offset
, LONGEST len
,
580 struct target_section
*sections
,
581 struct target_section
*sections_end
,
582 const char *section_name
)
585 struct target_section
*p
;
586 ULONGEST memaddr
= offset
;
587 ULONGEST memend
= memaddr
+ len
;
590 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
592 for (p
= sections
; p
< sections_end
; p
++)
594 if (section_name
&& strcmp (section_name
, p
->the_bfd_section
->name
) != 0)
595 continue; /* not the section we need */
596 if (memaddr
>= p
->addr
)
598 if (memend
<= p
->endaddr
)
600 /* Entire transfer is within this section. */
602 res
= bfd_set_section_contents (p
->bfd
, p
->the_bfd_section
,
603 writebuf
, memaddr
- p
->addr
,
606 res
= bfd_get_section_contents (p
->bfd
, p
->the_bfd_section
,
607 readbuf
, memaddr
- p
->addr
,
609 return (res
!= 0) ? len
: 0;
611 else if (memaddr
>= p
->endaddr
)
613 /* This section ends before the transfer starts. */
618 /* This section overlaps the transfer. Just do half. */
619 len
= p
->endaddr
- memaddr
;
621 res
= bfd_set_section_contents (p
->bfd
, p
->the_bfd_section
,
622 writebuf
, memaddr
- p
->addr
,
625 res
= bfd_get_section_contents (p
->bfd
, p
->the_bfd_section
,
626 readbuf
, memaddr
- p
->addr
,
628 return (res
!= 0) ? len
: 0;
633 return 0; /* We can't help */
636 struct target_section_table
*
637 exec_get_section_table (struct target_ops
*ops
)
639 return current_target_sections
;
643 exec_xfer_partial (struct target_ops
*ops
, enum target_object object
,
644 const char *annex
, gdb_byte
*readbuf
,
645 const gdb_byte
*writebuf
,
646 ULONGEST offset
, LONGEST len
)
648 struct target_section_table
*table
= target_get_section_table (ops
);
650 if (object
== TARGET_OBJECT_MEMORY
)
651 return section_table_xfer_memory_partial (readbuf
, writebuf
,
662 print_section_info (struct target_section_table
*t
, bfd
*abfd
)
664 struct gdbarch
*gdbarch
= gdbarch_from_bfd (abfd
);
665 struct target_section
*p
;
666 /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */
667 int wid
= gdbarch_addr_bit (gdbarch
) <= 32 ? 8 : 16;
669 printf_filtered ("\t`%s', ", bfd_get_filename (abfd
));
671 printf_filtered (_("file type %s.\n"), bfd_get_target (abfd
));
672 if (abfd
== exec_bfd
)
674 /* gcc-3.4 does not like the initialization in <p == t->sections_end>. */
675 bfd_vma displacement
= 0;
677 for (p
= t
->sections
; p
< t
->sections_end
; p
++)
679 asection
*asect
= p
->the_bfd_section
;
681 if ((bfd_get_section_flags (abfd
, asect
) & (SEC_ALLOC
| SEC_LOAD
))
682 != (SEC_ALLOC
| SEC_LOAD
))
685 if (bfd_get_section_vma (abfd
, asect
) <= abfd
->start_address
686 && abfd
->start_address
< (bfd_get_section_vma (abfd
, asect
)
687 + bfd_get_section_size (asect
)))
689 displacement
= p
->addr
- bfd_get_section_vma (abfd
, asect
);
693 if (p
== t
->sections_end
)
694 warning (_("Cannot find section for the entry point of %s.\n"),
695 bfd_get_filename (abfd
));
697 printf_filtered (_("\tEntry point: %s\n"),
698 paddress (gdbarch
, (bfd_get_start_address (abfd
)
701 for (p
= t
->sections
; p
< t
->sections_end
; p
++)
703 printf_filtered ("\t%s", hex_string_custom (p
->addr
, wid
));
704 printf_filtered (" - %s", hex_string_custom (p
->endaddr
, wid
));
706 /* FIXME: A format of "08l" is not wide enough for file offsets
707 larger than 4GB. OTOH, making it "016l" isn't desirable either
708 since most output will then be much wider than necessary. It
709 may make sense to test the size of the file and choose the
710 format string accordingly. */
711 /* FIXME: i18n: Need to rewrite this sentence. */
713 printf_filtered (" @ %s",
714 hex_string_custom (p
->the_bfd_section
->filepos
, 8));
715 printf_filtered (" is %s", bfd_section_name (p
->bfd
, p
->the_bfd_section
));
717 printf_filtered (" in %s", bfd_get_filename (p
->bfd
));
718 printf_filtered ("\n");
723 exec_files_info (struct target_ops
*t
)
725 print_section_info (current_target_sections
, exec_bfd
);
729 int addr_size
= gdbarch_addr_bit (target_gdbarch
) / 8;
732 printf_unfiltered (_("\tMapping info for file `%s'.\n"), vmap
->name
);
733 printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n",
734 addr_size
* 2, "tstart",
735 addr_size
* 2, "tend",
736 addr_size
* 2, "dstart",
737 addr_size
* 2, "dend",
741 for (vp
= vmap
; vp
; vp
= vp
->nxt
)
742 printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n",
743 phex (vp
->tstart
, addr_size
),
744 phex (vp
->tend
, addr_size
),
745 phex (vp
->dstart
, addr_size
),
746 phex (vp
->dend
, addr_size
),
748 *vp
->member
? "(" : "", vp
->member
,
749 *vp
->member
? ")" : "");
754 set_section_command (char *args
, int from_tty
)
756 struct target_section
*p
;
759 unsigned long secaddr
;
762 struct target_section_table
*table
;
765 error (_("Must specify section name and its virtual address"));
767 /* Parse out section name */
768 for (secname
= args
; !isspace (*args
); args
++);
769 seclen
= args
- secname
;
771 /* Parse out new virtual address */
772 secaddr
= parse_and_eval_address (args
);
774 table
= current_target_sections
;
775 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
777 if (!strncmp (secname
, bfd_section_name (exec_bfd
, p
->the_bfd_section
), seclen
)
778 && bfd_section_name (exec_bfd
, p
->the_bfd_section
)[seclen
] == '\0')
780 offset
= secaddr
- p
->addr
;
782 p
->endaddr
+= offset
;
784 exec_files_info (&exec_ops
);
788 if (seclen
>= sizeof (secprint
))
789 seclen
= sizeof (secprint
) - 1;
790 strncpy (secprint
, secname
, seclen
);
791 secprint
[seclen
] = '\0';
792 error (_("Section %s not found"), secprint
);
795 /* If we can find a section in FILENAME with BFD index INDEX, adjust
799 exec_set_section_address (const char *filename
, int index
, CORE_ADDR address
)
801 struct target_section
*p
;
802 struct target_section_table
*table
;
804 table
= current_target_sections
;
805 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
807 if (strcmp (filename
, p
->bfd
->filename
) == 0
808 && index
== p
->the_bfd_section
->index
)
810 p
->endaddr
+= address
- p
->addr
;
816 /* If mourn is being called in all the right places, this could be say
817 `gdb internal error' (since generic_mourn calls
818 breakpoint_init_inferior). */
821 ignore (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
)
827 exec_has_memory (struct target_ops
*ops
)
829 /* We can provide memory if we have any file/target sections to read
831 return (current_target_sections
->sections
832 != current_target_sections
->sections_end
);
835 /* Find mapped memory. */
838 exec_set_find_memory_regions (int (*func
) (int (*) (CORE_ADDR
,
844 exec_ops
.to_find_memory_regions
= func
;
847 static char *exec_make_note_section (bfd
*, int *);
849 /* Fill in the exec file target vector. Very few entries need to be
855 exec_ops
.to_shortname
= "exec";
856 exec_ops
.to_longname
= "Local exec file";
857 exec_ops
.to_doc
= "Use an executable file as a target.\n\
858 Specify the filename of the executable file.";
859 exec_ops
.to_open
= exec_open
;
860 exec_ops
.to_close
= exec_close_1
;
861 exec_ops
.to_attach
= find_default_attach
;
862 exec_ops
.to_xfer_partial
= exec_xfer_partial
;
863 exec_ops
.to_get_section_table
= exec_get_section_table
;
864 exec_ops
.to_files_info
= exec_files_info
;
865 exec_ops
.to_insert_breakpoint
= ignore
;
866 exec_ops
.to_remove_breakpoint
= ignore
;
867 exec_ops
.to_create_inferior
= find_default_create_inferior
;
868 exec_ops
.to_stratum
= file_stratum
;
869 exec_ops
.to_has_memory
= exec_has_memory
;
870 exec_ops
.to_make_corefile_notes
= exec_make_note_section
;
871 exec_ops
.to_magic
= OPS_MAGIC
;
875 _initialize_exec (void)
877 struct cmd_list_element
*c
;
883 c
= add_cmd ("file", class_files
, file_command
, _("\
884 Use FILE as program to be debugged.\n\
885 It is read for its symbols, for getting the contents of pure memory,\n\
886 and it is the program executed when you use the `run' command.\n\
887 If FILE cannot be found as specified, your execution directory path\n\
888 ($PATH) is searched for a command of that name.\n\
889 No arg means to have no executable file and no symbols."), &cmdlist
);
890 set_cmd_completer (c
, filename_completer
);
893 c
= add_cmd ("exec-file", class_files
, exec_file_command
, _("\
894 Use FILE as program for getting contents of pure memory.\n\
895 If FILE cannot be found as specified, your execution directory path\n\
896 is searched for a command of that name.\n\
897 No arg means have no executable file."), &cmdlist
);
898 set_cmd_completer (c
, filename_completer
);
900 add_com ("section", class_files
, set_section_command
, _("\
901 Change the base address of section SECTION of the exec file to ADDR.\n\
902 This can be used if the exec file does not contain section addresses,\n\
903 (such as in the a.out format), or when the addresses specified in the\n\
904 file itself are wrong. Each section must be changed separately. The\n\
905 ``info files'' command lists all the sections and their addresses."));
907 add_setshow_boolean_cmd ("write", class_support
, &write_files
, _("\
908 Set writing into executable and core files."), _("\
909 Show writing into executable and core files."), NULL
,
912 &setlist
, &showlist
);
914 add_target (&exec_ops
);
918 exec_make_note_section (bfd
*obfd
, int *note_size
)
920 error (_("Can't create a corefile"));