1 /* Work with executable files, for GDB.
3 Copyright (C) 1988-2013 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
26 #include "filenames.h"
29 #include "completer.h"
33 #include "arch-utils.h"
34 #include "gdbthread.h"
35 #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
;
103 gdb_bfd_unref (abfd
);
105 /* Removing target sections may close the exec_ops target.
106 Clear exec_bfd before doing so to prevent recursion. */
110 remove_target_sections (&exec_bfd
, abfd
);
112 xfree (exec_filename
);
113 exec_filename
= NULL
;
117 /* This is the target_close implementation. Clears all target
118 sections and closes all executable bfds from all program spaces. */
121 exec_close_1 (int quitting
)
123 struct vmap
*vp
, *nxt
;
127 for (nxt
= vmap
; nxt
!= NULL
;)
133 free_objfile (vp
->objfile
);
135 gdb_bfd_unref (vp
->bfd
);
143 struct program_space
*ss
;
144 struct cleanup
*old_chain
;
146 old_chain
= save_current_program_space ();
149 set_current_program_space (ss
);
151 /* Delete all target sections. */
153 (current_target_sections
,
154 -resize_section_table (current_target_sections
, 0));
159 do_cleanups (old_chain
);
164 exec_file_clear (int from_tty
)
166 /* Remove exec file. */
170 printf_unfiltered (_("No executable file now.\n"));
173 /* Set FILENAME as the new exec file.
175 This function is intended to be behave essentially the same
176 as exec_file_command, except that the latter will detect when
177 a target is being debugged, and will ask the user whether it
178 should be shut down first. (If the answer is "no", then the
179 new file is ignored.)
181 This file is used by exec_file_command, to do the work of opening
182 and processing the exec file after any prompting has happened.
184 And, it is used by child_attach, when the attach command was
185 given a pid but not a exec pathname, and the attach command could
186 figure out the pathname from the pid. (In this case, we shouldn't
187 ask the user whether the current target should be shut down --
188 we're supplying the exec pathname late for good reason.) */
191 exec_file_attach (char *filename
, int from_tty
)
193 /* Remove any previous exec file. */
196 /* Now open and digest the file the user requested, if any. */
201 printf_unfiltered (_("No executable file now.\n"));
203 set_gdbarch_from_file (NULL
);
207 struct cleanup
*cleanups
;
208 char *scratch_pathname
, *canonical_pathname
;
210 struct target_section
*sections
= NULL
, *sections_end
= NULL
;
213 scratch_chan
= openp (getenv ("PATH"),
214 OPF_TRY_CWD_FIRST
| OPF_DISABLE_REALPATH
, filename
,
215 write_files
? O_RDWR
| O_BINARY
: O_RDONLY
| O_BINARY
,
217 #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
218 if (scratch_chan
< 0)
220 char *exename
= alloca (strlen (filename
) + 5);
222 strcat (strcpy (exename
, filename
), ".exe");
223 scratch_chan
= openp (getenv ("PATH"),
224 OPF_TRY_CWD_FIRST
| OPF_DISABLE_REALPATH
,
226 write_files
? O_RDWR
| O_BINARY
: O_RDONLY
| O_BINARY
,
230 if (scratch_chan
< 0)
231 perror_with_name (filename
);
233 cleanups
= make_cleanup (xfree
, scratch_pathname
);
235 /* gdb_bfd_open (and its variants) prefers canonicalized pathname for
236 better BFD caching. */
237 canonical_pathname
= gdb_realpath (scratch_pathname
);
238 make_cleanup (xfree
, canonical_pathname
);
241 exec_bfd
= gdb_bfd_fopen (canonical_pathname
, gnutarget
,
242 FOPEN_RUB
, scratch_chan
);
244 exec_bfd
= gdb_bfd_open (canonical_pathname
, gnutarget
, scratch_chan
);
248 error (_("\"%s\": could not open as an executable file: %s"),
249 scratch_pathname
, bfd_errmsg (bfd_get_error ()));
252 gdb_assert (exec_filename
== NULL
);
253 exec_filename
= xstrdup (scratch_pathname
);
255 if (!bfd_check_format_matches (exec_bfd
, bfd_object
, &matching
))
257 /* Make sure to close exec_bfd, or else "run" might try to use
260 error (_("\"%s\": not in executable format: %s"),
262 gdb_bfd_errmsg (bfd_get_error (), matching
));
265 /* FIXME - This should only be run for RS6000, but the ifdef is a poor
266 way to accomplish. */
267 #ifdef DEPRECATED_IBM6000_TARGET
268 /* Setup initial vmap. */
270 map_vmap (exec_bfd
, 0);
273 /* Make sure to close exec_bfd, or else "run" might try to use
276 error (_("\"%s\": can't find the file sections: %s"),
277 scratch_pathname
, bfd_errmsg (bfd_get_error ()));
279 #endif /* DEPRECATED_IBM6000_TARGET */
281 if (build_section_table (exec_bfd
, §ions
, §ions_end
))
283 /* Make sure to close exec_bfd, or else "run" might try to use
286 error (_("\"%s\": can't find the file sections: %s"),
287 scratch_pathname
, bfd_errmsg (bfd_get_error ()));
290 exec_bfd_mtime
= bfd_get_mtime (exec_bfd
);
294 set_gdbarch_from_file (exec_bfd
);
296 /* Add the executable's sections to the current address spaces'
297 list of sections. This possibly pushes the exec_ops
299 add_target_sections (&exec_bfd
, sections
, sections_end
);
302 /* Tell display code (if any) about the changed file name. */
303 if (deprecated_exec_file_display_hook
)
304 (*deprecated_exec_file_display_hook
) (filename
);
306 do_cleanups (cleanups
);
308 bfd_cache_close_all ();
309 observer_notify_executable_changed ();
312 /* Process the first arg in ARGS as the new exec file.
314 Note that we have to explicitly ignore additional args, since we can
315 be called from file_command(), which also calls symbol_file_command()
316 which can take multiple args.
318 If ARGS is NULL, we just want to close the exec file. */
321 exec_file_command (char *args
, int from_tty
)
326 if (from_tty
&& target_has_execution
327 && !query (_("A program is being debugged already.\n"
328 "Are you sure you want to change the file? ")))
329 error (_("File not changed."));
333 struct cleanup
*cleanups
;
335 /* Scan through the args and pick up the first non option arg
338 argv
= gdb_buildargv (args
);
339 cleanups
= make_cleanup_freeargv (argv
);
341 for (; (*argv
!= NULL
) && (**argv
== '-'); argv
++)
345 error (_("No executable file name was specified"));
347 filename
= tilde_expand (*argv
);
348 make_cleanup (xfree
, filename
);
349 exec_file_attach (filename
, from_tty
);
351 do_cleanups (cleanups
);
354 exec_file_attach (NULL
, from_tty
);
357 /* Set both the exec file and the symbol file, in one command.
358 What a novelty. Why did GDB go through four major releases before this
359 command was added? */
362 file_command (char *arg
, int from_tty
)
364 /* FIXME, if we lose on reading the symbol file, we should revert
365 the exec file, but that's rough. */
366 exec_file_command (arg
, from_tty
);
367 symbol_file_command (arg
, from_tty
);
368 if (deprecated_file_changed_hook
)
369 deprecated_file_changed_hook (arg
);
373 /* Locate all mappable sections of a BFD file.
374 table_pp_char is a char * to get it through bfd_map_over_sections;
375 we cast it back to its proper type. */
378 add_to_section_table (bfd
*abfd
, struct bfd_section
*asect
,
381 struct target_section
**table_pp
= (struct target_section
**) table_pp_char
;
384 /* Check the section flags, but do not discard zero-length sections, since
385 some symbols may still be attached to this section. For instance, we
386 encountered on sparc-solaris 2.10 a shared library with an empty .bss
387 section to which a symbol named "_end" was attached. The address
388 of this symbol still needs to be relocated. */
389 aflag
= bfd_get_section_flags (abfd
, asect
);
390 if (!(aflag
& SEC_ALLOC
))
393 (*table_pp
)->key
= NULL
;
394 (*table_pp
)->bfd
= abfd
;
395 (*table_pp
)->the_bfd_section
= asect
;
396 (*table_pp
)->addr
= bfd_section_vma (abfd
, asect
);
397 (*table_pp
)->endaddr
= (*table_pp
)->addr
+ bfd_section_size (abfd
, asect
);
402 resize_section_table (struct target_section_table
*table
, int num_added
)
407 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__
,
446 _("failed internal consistency check"));
447 /* We could realloc the table, but it probably loses for most files. */
451 /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the
452 current set of target sections. */
455 add_target_sections (void *key
,
456 struct target_section
*sections
,
457 struct target_section
*sections_end
)
460 struct target_section_table
*table
= current_target_sections
;
462 count
= sections_end
- sections
;
466 int space
= resize_section_table (table
, count
);
469 for (i
= 0; i
< count
; ++i
)
471 table
->sections
[space
+ i
] = sections
[i
];
472 table
->sections
[space
+ i
].key
= key
;
475 /* If these are the first file sections we can provide memory
476 from, push the file_stratum target. */
480 push_target (&exec_ops
);
485 /* Remove all target sections taken from ABFD. */
488 remove_target_sections (void *key
, bfd
*abfd
)
490 struct target_section
*src
, *dest
;
491 struct target_section_table
*table
= current_target_sections
;
493 dest
= table
->sections
;
494 for (src
= table
->sections
; src
< table
->sections_end
; src
++)
495 if (src
->key
!= key
|| src
->bfd
!= abfd
)
497 /* Keep this section. */
503 /* If we've dropped any sections, resize the section table. */
508 old_count
= resize_section_table (table
, dest
- src
);
510 /* If we don't have any more sections to read memory from,
511 remove the file_stratum target from the stack. */
512 if (old_count
+ (dest
- src
) == 0)
514 struct program_space
*pspace
;
517 if (pspace
->target_sections
.sections
518 != pspace
->target_sections
.sections_end
)
521 unpush_target (&exec_ops
);
528 bfdsec_to_vmap (struct bfd
*abfd
, struct bfd_section
*sect
, void *arg3
)
530 struct vmap_and_bfd
*vmap_bfd
= (struct vmap_and_bfd
*) arg3
;
533 vp
= vmap_bfd
->pvmap
;
535 if ((bfd_get_section_flags (abfd
, sect
) & SEC_LOAD
) == 0)
538 if (strcmp (bfd_section_name (abfd
, sect
), ".text") == 0)
540 vp
->tstart
= bfd_section_vma (abfd
, sect
);
541 vp
->tend
= vp
->tstart
+ bfd_section_size (abfd
, sect
);
542 vp
->tvma
= bfd_section_vma (abfd
, sect
);
543 vp
->toffs
= sect
->filepos
;
545 else if (strcmp (bfd_section_name (abfd
, sect
), ".data") == 0)
547 vp
->dstart
= bfd_section_vma (abfd
, sect
);
548 vp
->dend
= vp
->dstart
+ bfd_section_size (abfd
, sect
);
549 vp
->dvma
= bfd_section_vma (abfd
, sect
);
551 /* Silently ignore other types of sections. (FIXME?) */
554 /* Make a vmap for ABFD which might be a member of the archive ARCH.
555 Return the new vmap. */
558 map_vmap (bfd
*abfd
, bfd
*arch
)
560 struct vmap_and_bfd vmap_bfd
;
561 struct vmap
*vp
, **vpp
;
563 vp
= (struct vmap
*) xmalloc (sizeof (*vp
));
564 memset ((char *) vp
, '\0', sizeof (*vp
));
568 vp
->name
= bfd_get_filename (arch
? arch
: abfd
);
569 vp
->member
= arch
? bfd_get_filename (abfd
) : "";
571 vmap_bfd
.pbfd
= arch
;
573 bfd_map_over_sections (abfd
, bfdsec_to_vmap
, &vmap_bfd
);
575 /* Find the end of the list and append. */
576 for (vpp
= &vmap
; *vpp
; vpp
= &(*vpp
)->nxt
)
585 section_table_available_memory (VEC(mem_range_s
) *memory
,
586 CORE_ADDR memaddr
, ULONGEST len
,
587 struct target_section
*sections
,
588 struct target_section
*sections_end
)
590 struct target_section
*p
;
592 for (p
= sections
; p
< sections_end
; p
++)
594 if ((bfd_get_section_flags (p
->bfd
, p
->the_bfd_section
)
595 & SEC_READONLY
) == 0)
598 /* Copy the meta-data, adjusted. */
599 if (mem_ranges_overlap (p
->addr
, p
->endaddr
- p
->addr
, memaddr
, len
))
601 ULONGEST lo1
, hi1
, lo2
, hi2
;
610 r
= VEC_safe_push (mem_range_s
, memory
, NULL
);
612 r
->start
= max (lo1
, lo2
);
613 r
->length
= min (hi1
, hi2
) - r
->start
;
621 section_table_xfer_memory_partial (gdb_byte
*readbuf
, const gdb_byte
*writebuf
,
622 ULONGEST offset
, LONGEST len
,
623 struct target_section
*sections
,
624 struct target_section
*sections_end
,
625 const char *section_name
)
628 struct target_section
*p
;
629 ULONGEST memaddr
= offset
;
630 ULONGEST memend
= memaddr
+ len
;
633 internal_error (__FILE__
, __LINE__
,
634 _("failed internal consistency check"));
636 for (p
= sections
; p
< sections_end
; p
++)
638 if (section_name
&& strcmp (section_name
, p
->the_bfd_section
->name
) != 0)
639 continue; /* not the section we need. */
640 if (memaddr
>= p
->addr
)
642 if (memend
<= p
->endaddr
)
644 /* Entire transfer is within this section. */
646 res
= bfd_set_section_contents (p
->bfd
, p
->the_bfd_section
,
647 writebuf
, memaddr
- p
->addr
,
650 res
= bfd_get_section_contents (p
->bfd
, p
->the_bfd_section
,
651 readbuf
, memaddr
- p
->addr
,
653 return (res
!= 0) ? len
: 0;
655 else if (memaddr
>= p
->endaddr
)
657 /* This section ends before the transfer starts. */
662 /* This section overlaps the transfer. Just do half. */
663 len
= p
->endaddr
- memaddr
;
665 res
= bfd_set_section_contents (p
->bfd
, p
->the_bfd_section
,
666 writebuf
, memaddr
- p
->addr
,
669 res
= bfd_get_section_contents (p
->bfd
, p
->the_bfd_section
,
670 readbuf
, memaddr
- p
->addr
,
672 return (res
!= 0) ? len
: 0;
677 return 0; /* We can't help. */
680 static struct target_section_table
*
681 exec_get_section_table (struct target_ops
*ops
)
683 return current_target_sections
;
687 exec_xfer_partial (struct target_ops
*ops
, enum target_object object
,
688 const char *annex
, gdb_byte
*readbuf
,
689 const gdb_byte
*writebuf
,
690 ULONGEST offset
, LONGEST len
)
692 struct target_section_table
*table
= target_get_section_table (ops
);
694 if (object
== TARGET_OBJECT_MEMORY
)
695 return section_table_xfer_memory_partial (readbuf
, writebuf
,
706 print_section_info (struct target_section_table
*t
, bfd
*abfd
)
708 struct gdbarch
*gdbarch
= gdbarch_from_bfd (abfd
);
709 struct target_section
*p
;
710 /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */
711 int wid
= gdbarch_addr_bit (gdbarch
) <= 32 ? 8 : 16;
713 printf_filtered ("\t`%s', ", bfd_get_filename (abfd
));
715 printf_filtered (_("file type %s.\n"), bfd_get_target (abfd
));
716 if (abfd
== exec_bfd
)
718 /* gcc-3.4 does not like the initialization in
719 <p == t->sections_end>. */
720 bfd_vma displacement
= 0;
723 for (p
= t
->sections
; p
< t
->sections_end
; p
++)
725 asection
*asect
= p
->the_bfd_section
;
727 if ((bfd_get_section_flags (abfd
, asect
) & (SEC_ALLOC
| SEC_LOAD
))
728 != (SEC_ALLOC
| SEC_LOAD
))
731 if (bfd_get_section_vma (abfd
, asect
) <= abfd
->start_address
732 && abfd
->start_address
< (bfd_get_section_vma (abfd
, asect
)
733 + bfd_get_section_size (asect
)))
735 displacement
= p
->addr
- bfd_get_section_vma (abfd
, asect
);
739 if (p
== t
->sections_end
)
740 warning (_("Cannot find section for the entry point of %s."),
741 bfd_get_filename (abfd
));
743 entry_point
= gdbarch_addr_bits_remove (gdbarch
,
744 bfd_get_start_address (abfd
)
746 printf_filtered (_("\tEntry point: %s\n"),
747 paddress (gdbarch
, entry_point
));
749 for (p
= t
->sections
; p
< t
->sections_end
; p
++)
751 printf_filtered ("\t%s", hex_string_custom (p
->addr
, wid
));
752 printf_filtered (" - %s", hex_string_custom (p
->endaddr
, wid
));
754 /* FIXME: A format of "08l" is not wide enough for file offsets
755 larger than 4GB. OTOH, making it "016l" isn't desirable either
756 since most output will then be much wider than necessary. It
757 may make sense to test the size of the file and choose the
758 format string accordingly. */
759 /* FIXME: i18n: Need to rewrite this sentence. */
761 printf_filtered (" @ %s",
762 hex_string_custom (p
->the_bfd_section
->filepos
, 8));
763 printf_filtered (" is %s", bfd_section_name (p
->bfd
,
764 p
->the_bfd_section
));
766 printf_filtered (" in %s", bfd_get_filename (p
->bfd
));
767 printf_filtered ("\n");
772 exec_files_info (struct target_ops
*t
)
775 print_section_info (current_target_sections
, exec_bfd
);
777 puts_filtered (_("\t<no file loaded>\n"));
781 int addr_size
= gdbarch_addr_bit (target_gdbarch ()) / 8;
784 printf_unfiltered (_("\tMapping info for file `%s'.\n"), vmap
->name
);
785 printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n",
786 addr_size
* 2, "tstart",
787 addr_size
* 2, "tend",
788 addr_size
* 2, "dstart",
789 addr_size
* 2, "dend",
793 for (vp
= vmap
; vp
; vp
= vp
->nxt
)
794 printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n",
795 phex (vp
->tstart
, addr_size
),
796 phex (vp
->tend
, addr_size
),
797 phex (vp
->dstart
, addr_size
),
798 phex (vp
->dend
, addr_size
),
800 *vp
->member
? "(" : "", vp
->member
,
801 *vp
->member
? ")" : "");
806 set_section_command (char *args
, int from_tty
)
808 struct target_section
*p
;
811 unsigned long secaddr
;
814 struct target_section_table
*table
;
817 error (_("Must specify section name and its virtual address"));
819 /* Parse out section name. */
820 for (secname
= args
; !isspace (*args
); args
++);
821 seclen
= args
- secname
;
823 /* Parse out new virtual address. */
824 secaddr
= parse_and_eval_address (args
);
826 table
= current_target_sections
;
827 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
829 if (!strncmp (secname
, bfd_section_name (p
->bfd
,
830 p
->the_bfd_section
), seclen
)
831 && bfd_section_name (p
->bfd
, p
->the_bfd_section
)[seclen
] == '\0')
833 offset
= secaddr
- p
->addr
;
835 p
->endaddr
+= offset
;
837 exec_files_info (&exec_ops
);
841 if (seclen
>= sizeof (secprint
))
842 seclen
= sizeof (secprint
) - 1;
843 strncpy (secprint
, secname
, seclen
);
844 secprint
[seclen
] = '\0';
845 error (_("Section %s not found"), secprint
);
848 /* If we can find a section in FILENAME with BFD index INDEX, adjust
852 exec_set_section_address (const char *filename
, int index
, CORE_ADDR address
)
854 struct target_section
*p
;
855 struct target_section_table
*table
;
857 table
= current_target_sections
;
858 for (p
= table
->sections
; p
< table
->sections_end
; p
++)
860 if (filename_cmp (filename
, p
->bfd
->filename
) == 0
861 && index
== p
->the_bfd_section
->index
)
863 p
->endaddr
+= address
- p
->addr
;
869 /* If mourn is being called in all the right places, this could be say
870 `gdb internal error' (since generic_mourn calls
871 breakpoint_init_inferior). */
874 ignore (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
)
880 exec_has_memory (struct target_ops
*ops
)
882 /* We can provide memory if we have any file/target sections to read
884 return (current_target_sections
->sections
885 != current_target_sections
->sections_end
);
888 /* Find mapped memory. */
891 exec_set_find_memory_regions (int (*func
) (find_memory_region_ftype
, void *))
893 exec_ops
.to_find_memory_regions
= func
;
896 static char *exec_make_note_section (bfd
*, int *);
898 /* Fill in the exec file target vector. Very few entries need to be
904 exec_ops
.to_shortname
= "exec";
905 exec_ops
.to_longname
= "Local exec file";
906 exec_ops
.to_doc
= "Use an executable file as a target.\n\
907 Specify the filename of the executable file.";
908 exec_ops
.to_open
= exec_open
;
909 exec_ops
.to_close
= exec_close_1
;
910 exec_ops
.to_attach
= find_default_attach
;
911 exec_ops
.to_xfer_partial
= exec_xfer_partial
;
912 exec_ops
.to_get_section_table
= exec_get_section_table
;
913 exec_ops
.to_files_info
= exec_files_info
;
914 exec_ops
.to_insert_breakpoint
= ignore
;
915 exec_ops
.to_remove_breakpoint
= ignore
;
916 exec_ops
.to_create_inferior
= find_default_create_inferior
;
917 exec_ops
.to_stratum
= file_stratum
;
918 exec_ops
.to_has_memory
= exec_has_memory
;
919 exec_ops
.to_make_corefile_notes
= exec_make_note_section
;
920 exec_ops
.to_magic
= OPS_MAGIC
;
924 _initialize_exec (void)
926 struct cmd_list_element
*c
;
932 c
= add_cmd ("file", class_files
, file_command
, _("\
933 Use FILE as program to be debugged.\n\
934 It is read for its symbols, for getting the contents of pure memory,\n\
935 and it is the program executed when you use the `run' command.\n\
936 If FILE cannot be found as specified, your execution directory path\n\
937 ($PATH) is searched for a command of that name.\n\
938 No arg means to have no executable file and no symbols."), &cmdlist
);
939 set_cmd_completer (c
, filename_completer
);
942 c
= add_cmd ("exec-file", class_files
, exec_file_command
, _("\
943 Use FILE as program for getting contents of pure memory.\n\
944 If FILE cannot be found as specified, your execution directory path\n\
945 is searched for a command of that name.\n\
946 No arg means have no executable file."), &cmdlist
);
947 set_cmd_completer (c
, filename_completer
);
949 add_com ("section", class_files
, set_section_command
, _("\
950 Change the base address of section SECTION of the exec file to ADDR.\n\
951 This can be used if the exec file does not contain section addresses,\n\
952 (such as in the a.out format), or when the addresses specified in the\n\
953 file itself are wrong. Each section must be changed separately. The\n\
954 ``info files'' command lists all the sections and their addresses."));
956 add_setshow_boolean_cmd ("write", class_support
, &write_files
, _("\
957 Set writing into executable and core files."), _("\
958 Show writing into executable and core files."), NULL
,
961 &setlist
, &showlist
);
963 add_target (&exec_ops
);
967 exec_make_note_section (bfd
*obfd
, int *note_size
)
969 error (_("Can't create a corefile"));