1 /* Work with executable files, for GDB.
3 Copyright (C) 1988-2015 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"
40 #include "readline/readline.h"
46 void (*deprecated_file_changed_hook) (char *);
48 /* Prototypes for local functions */
50 static void file_command (char *, int);
52 static void set_section_command (char *, int);
54 static void exec_files_info (struct target_ops *);
56 static void init_exec_ops (void);
58 void _initialize_exec (void);
60 /* The target vector for executable files. */
62 static struct target_ops exec_ops;
64 /* Whether to open exec and core files read-only or read-write. */
68 show_write_files (struct ui_file *file, int from_tty,
69 struct cmd_list_element *c, const char *value)
71 fprintf_filtered (file, _("Writing into executable and core files is %s.\n"),
77 exec_open (const char *args, int from_tty)
79 target_preopen (from_tty);
80 exec_file_attach (args, from_tty);
83 /* Close and clear exec_bfd. If we end up with no target sections to
84 read memory from, this unpushes the exec_ops target. */
95 /* Removing target sections may close the exec_ops target.
96 Clear exec_bfd before doing so to prevent recursion. */
100 remove_target_sections (&exec_bfd);
102 xfree (exec_filename);
103 exec_filename = NULL;
107 /* This is the target_close implementation. Clears all target
108 sections and closes all executable bfds from all program spaces. */
111 exec_close_1 (struct target_ops *self)
113 struct program_space *ss;
114 struct cleanup *old_chain;
116 old_chain = save_current_program_space ();
119 set_current_program_space (ss);
120 clear_section_table (current_target_sections);
124 do_cleanups (old_chain);
128 exec_file_clear (int from_tty)
130 /* Remove exec file. */
134 printf_unfiltered (_("No executable file now.\n"));
140 exec_file_locate_attach (int pid, int from_tty)
142 char *exec_file, *full_exec_path = NULL;
144 /* Do nothing if we already have an executable filename. */
145 exec_file = (char *) get_exec_file (0);
146 if (exec_file != NULL)
149 /* Try to determine a filename from the process itself. */
150 exec_file = target_pid_to_exec_file (pid);
151 if (exec_file == NULL)
154 /* It's possible we don't have a full path, but rather just a
155 filename. Some targets, such as HP-UX, don't provide the
158 Attempt to qualify the filename against the source path.
159 (If that fails, we'll just fall back on the original
160 filename. Not much more we can do...) */
161 if (!source_full_path_of (exec_file, &full_exec_path))
162 full_exec_path = xstrdup (exec_file);
164 exec_file_attach (full_exec_path, from_tty);
165 symbol_file_add_main (full_exec_path, from_tty);
168 /* Set FILENAME as the new exec file.
170 This function is intended to be behave essentially the same
171 as exec_file_command, except that the latter will detect when
172 a target is being debugged, and will ask the user whether it
173 should be shut down first. (If the answer is "no", then the
174 new file is ignored.)
176 This file is used by exec_file_command, to do the work of opening
177 and processing the exec file after any prompting has happened.
179 And, it is used by child_attach, when the attach command was
180 given a pid but not a exec pathname, and the attach command could
181 figure out the pathname from the pid. (In this case, we shouldn't
182 ask the user whether the current target should be shut down --
183 we're supplying the exec pathname late for good reason.) */
186 exec_file_attach (const char *filename, int from_tty)
188 struct cleanup *cleanups;
190 /* First, acquire a reference to the current exec_bfd. We release
191 this at the end of the function; but acquiring it now lets the
192 BFD cache return it if this call refers to the same file. */
193 gdb_bfd_ref (exec_bfd);
194 cleanups = make_cleanup_bfd_unref (exec_bfd);
196 /* Remove any previous exec file. */
199 /* Now open and digest the file the user requested, if any. */
204 printf_unfiltered (_("No executable file now.\n"));
206 set_gdbarch_from_file (NULL);
210 int load_via_target = 0;
211 char *scratch_pathname, *canonical_pathname;
213 struct target_section *sections = NULL, *sections_end = NULL;
216 if (is_target_filename (filename))
218 if (target_filesystem_is_local ())
219 filename += strlen (TARGET_SYSROOT_PREFIX);
226 /* gdb_bfd_fopen does not support "target:" filenames. */
228 warning (_("writing into executable files is "
229 "not supported for %s sysroots"),
230 TARGET_SYSROOT_PREFIX);
232 scratch_pathname = xstrdup (filename);
233 make_cleanup (xfree, scratch_pathname);
237 canonical_pathname = scratch_pathname;
241 scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST,
242 filename, write_files ?
243 O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
245 #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
246 if (scratch_chan < 0)
248 char *exename = alloca (strlen (filename) + 5);
250 strcat (strcpy (exename, filename), ".exe");
251 scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST,
252 exename, write_files ?
254 : O_RDONLY | O_BINARY,
258 if (scratch_chan < 0)
259 perror_with_name (filename);
261 make_cleanup (xfree, scratch_pathname);
263 /* gdb_bfd_open (and its variants) prefers canonicalized
264 pathname for better BFD caching. */
265 canonical_pathname = gdb_realpath (scratch_pathname);
266 make_cleanup (xfree, canonical_pathname);
269 if (write_files && !load_via_target)
270 exec_bfd = gdb_bfd_fopen (canonical_pathname, gnutarget,
271 FOPEN_RUB, scratch_chan);
273 exec_bfd = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan);
277 error (_("\"%s\": could not open as an executable file: %s"),
278 scratch_pathname, bfd_errmsg (bfd_get_error ()));
281 /* gdb_realpath_keepfile resolves symlinks on the local
282 filesystem and so cannot be used for "target:" files. */
283 gdb_assert (exec_filename == NULL);
285 exec_filename = xstrdup (bfd_get_filename (exec_bfd));
287 exec_filename = gdb_realpath_keepfile (scratch_pathname);
289 if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching))
291 /* Make sure to close exec_bfd, or else "run" might try to use
294 error (_("\"%s\": not in executable format: %s"),
296 gdb_bfd_errmsg (bfd_get_error (), matching));
299 if (build_section_table (exec_bfd, §ions, §ions_end))
301 /* Make sure to close exec_bfd, or else "run" might try to use
304 error (_("\"%s\": can't find the file sections: %s"),
305 scratch_pathname, bfd_errmsg (bfd_get_error ()));
308 exec_bfd_mtime = bfd_get_mtime (exec_bfd);
312 set_gdbarch_from_file (exec_bfd);
314 /* Add the executable's sections to the current address spaces'
315 list of sections. This possibly pushes the exec_ops
317 add_target_sections (&exec_bfd, sections, sections_end);
320 /* Tell display code (if any) about the changed file name. */
321 if (deprecated_exec_file_display_hook)
322 (*deprecated_exec_file_display_hook) (filename);
325 do_cleanups (cleanups);
327 bfd_cache_close_all ();
328 observer_notify_executable_changed ();
331 /* Process the first arg in ARGS as the new exec file.
333 Note that we have to explicitly ignore additional args, since we can
334 be called from file_command(), which also calls symbol_file_command()
335 which can take multiple args.
337 If ARGS is NULL, we just want to close the exec file. */
340 exec_file_command (char *args, int from_tty)
345 if (from_tty && target_has_execution
346 && !query (_("A program is being debugged already.\n"
347 "Are you sure you want to change the file? ")))
348 error (_("File not changed."));
352 struct cleanup *cleanups;
354 /* Scan through the args and pick up the first non option arg
357 argv = gdb_buildargv (args);
358 cleanups = make_cleanup_freeargv (argv);
360 for (; (*argv != NULL) && (**argv == '-'); argv++)
364 error (_("No executable file name was specified"));
366 filename = tilde_expand (*argv);
367 make_cleanup (xfree, filename);
368 exec_file_attach (filename, from_tty);
370 do_cleanups (cleanups);
373 exec_file_attach (NULL, from_tty);
376 /* Set both the exec file and the symbol file, in one command.
377 What a novelty. Why did GDB go through four major releases before this
378 command was added? */
381 file_command (char *arg, int from_tty)
383 /* FIXME, if we lose on reading the symbol file, we should revert
384 the exec file, but that's rough. */
385 exec_file_command (arg, from_tty);
386 symbol_file_command (arg, from_tty);
387 if (deprecated_file_changed_hook)
388 deprecated_file_changed_hook (arg);
392 /* Locate all mappable sections of a BFD file.
393 table_pp_char is a char * to get it through bfd_map_over_sections;
394 we cast it back to its proper type. */
397 add_to_section_table (bfd *abfd, struct bfd_section *asect,
400 struct target_section **table_pp = (struct target_section **) table_pp_char;
403 gdb_assert (abfd == asect->owner);
405 /* Check the section flags, but do not discard zero-length sections, since
406 some symbols may still be attached to this section. For instance, we
407 encountered on sparc-solaris 2.10 a shared library with an empty .bss
408 section to which a symbol named "_end" was attached. The address
409 of this symbol still needs to be relocated. */
410 aflag = bfd_get_section_flags (abfd, asect);
411 if (!(aflag & SEC_ALLOC))
414 (*table_pp)->owner = NULL;
415 (*table_pp)->the_bfd_section = asect;
416 (*table_pp)->addr = bfd_section_vma (abfd, asect);
417 (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect);
424 clear_section_table (struct target_section_table *table)
426 xfree (table->sections);
427 table->sections = table->sections_end = NULL;
430 /* Resize section table TABLE by ADJUSTMENT.
431 ADJUSTMENT may be negative, in which case the caller must have already
432 removed the sections being deleted.
433 Returns the old size. */
436 resize_section_table (struct target_section_table *table, int adjustment)
441 old_count = table->sections_end - table->sections;
443 new_count = adjustment + old_count;
447 table->sections = xrealloc (table->sections,
448 sizeof (struct target_section) * new_count);
449 table->sections_end = table->sections + new_count;
452 clear_section_table (table);
457 /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
458 Returns 0 if OK, 1 on error. */
461 build_section_table (struct bfd *some_bfd, struct target_section **start,
462 struct target_section **end)
466 count = bfd_count_sections (some_bfd);
469 *start = (struct target_section *) xmalloc (count * sizeof (**start));
471 bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end);
472 if (*end > *start + count)
473 internal_error (__FILE__, __LINE__,
474 _("failed internal consistency check"));
475 /* We could realloc the table, but it probably loses for most files. */
479 /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the
480 current set of target sections. */
483 add_target_sections (void *owner,
484 struct target_section *sections,
485 struct target_section *sections_end)
488 struct target_section_table *table = current_target_sections;
490 count = sections_end - sections;
494 int space = resize_section_table (table, count);
497 for (i = 0; i < count; ++i)
499 table->sections[space + i] = sections[i];
500 table->sections[space + i].owner = owner;
503 /* If these are the first file sections we can provide memory
504 from, push the file_stratum target. */
505 if (!target_is_pushed (&exec_ops))
506 push_target (&exec_ops);
510 /* Add the sections of OBJFILE to the current set of target sections. */
513 add_target_sections_of_objfile (struct objfile *objfile)
515 struct target_section_table *table = current_target_sections;
516 struct obj_section *osect;
519 struct target_section *ts;
524 /* Compute the number of sections to add. */
525 ALL_OBJFILE_OSECTIONS (objfile, osect)
527 if (bfd_get_section_size (osect->the_bfd_section) == 0)
535 space = resize_section_table (table, count);
537 ts = table->sections + space;
539 ALL_OBJFILE_OSECTIONS (objfile, osect)
541 if (bfd_get_section_size (osect->the_bfd_section) == 0)
544 gdb_assert (ts < table->sections + space + count);
546 ts->addr = obj_section_addr (osect);
547 ts->endaddr = obj_section_endaddr (osect);
548 ts->the_bfd_section = osect->the_bfd_section;
549 ts->owner = (void *) objfile;
555 /* Remove all target sections owned by OWNER.
556 OWNER must be the same value passed to add_target_sections. */
559 remove_target_sections (void *owner)
561 struct target_section *src, *dest;
562 struct target_section_table *table = current_target_sections;
564 gdb_assert (owner != NULL);
566 dest = table->sections;
567 for (src = table->sections; src < table->sections_end; src++)
568 if (src->owner != owner)
570 /* Keep this section. */
576 /* If we've dropped any sections, resize the section table. */
581 old_count = resize_section_table (table, dest - src);
583 /* If we don't have any more sections to read memory from,
584 remove the file_stratum target from the stack. */
585 if (old_count + (dest - src) == 0)
587 struct program_space *pspace;
590 if (pspace->target_sections.sections
591 != pspace->target_sections.sections_end)
594 unpush_target (&exec_ops);
601 enum target_xfer_status
602 exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset,
603 ULONGEST len, ULONGEST *xfered_len)
605 /* It's unduly pedantic to refuse to look at the executable for
606 read-only pieces; so do the equivalent of readonly regions aka
608 if (exec_bfd != NULL)
614 for (s = exec_bfd->sections; s; s = s->next)
616 if ((s->flags & SEC_LOAD) == 0
617 || (s->flags & SEC_READONLY) == 0)
621 size = bfd_get_section_size (s);
622 if (vma <= offset && offset < (vma + size))
626 amt = (vma + size) - offset;
630 amt = bfd_get_section_contents (exec_bfd, s,
631 readbuf, offset - vma, amt);
634 return TARGET_XFER_EOF;
638 return TARGET_XFER_OK;
644 /* Indicate failure to find the requested memory block. */
645 return TARGET_XFER_E_IO;
648 /* Appends all read-only memory ranges found in the target section
649 table defined by SECTIONS and SECTIONS_END, starting at (and
650 intersected with) MEMADDR for LEN bytes. Returns the augmented
653 static VEC(mem_range_s) *
654 section_table_available_memory (VEC(mem_range_s) *memory,
655 CORE_ADDR memaddr, ULONGEST len,
656 struct target_section *sections,
657 struct target_section *sections_end)
659 struct target_section *p;
661 for (p = sections; p < sections_end; p++)
663 if ((bfd_get_section_flags (p->the_bfd_section->owner,
665 & SEC_READONLY) == 0)
668 /* Copy the meta-data, adjusted. */
669 if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len))
671 ULONGEST lo1, hi1, lo2, hi2;
680 r = VEC_safe_push (mem_range_s, memory, NULL);
682 r->start = max (lo1, lo2);
683 r->length = min (hi1, hi2) - r->start;
690 enum target_xfer_status
691 section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset,
692 ULONGEST len, ULONGEST *xfered_len)
694 VEC(mem_range_s) *available_memory = NULL;
695 struct target_section_table *table;
696 struct cleanup *old_chain;
700 table = target_get_section_table (&exec_ops);
701 available_memory = section_table_available_memory (available_memory,
704 table->sections_end);
706 old_chain = make_cleanup (VEC_cleanup(mem_range_s),
709 normalize_mem_ranges (available_memory);
712 VEC_iterate (mem_range_s, available_memory, i, r);
715 if (mem_ranges_overlap (r->start, r->length, offset, len))
718 enum target_xfer_status status;
720 /* Get the intersection window. */
721 end = min (offset + len, r->start + r->length);
723 gdb_assert (end - offset <= len);
725 if (offset >= r->start)
726 status = exec_read_partial_read_only (readbuf, offset,
731 *xfered_len = r->start - offset;
732 status = TARGET_XFER_UNAVAILABLE;
734 do_cleanups (old_chain);
738 do_cleanups (old_chain);
741 return TARGET_XFER_UNAVAILABLE;
744 enum target_xfer_status
745 section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf,
746 ULONGEST offset, ULONGEST len,
747 ULONGEST *xfered_len,
748 struct target_section *sections,
749 struct target_section *sections_end,
750 const char *section_name)
753 struct target_section *p;
754 ULONGEST memaddr = offset;
755 ULONGEST memend = memaddr + len;
758 internal_error (__FILE__, __LINE__,
759 _("failed internal consistency check"));
761 for (p = sections; p < sections_end; p++)
763 struct bfd_section *asect = p->the_bfd_section;
764 bfd *abfd = asect->owner;
766 if (section_name && strcmp (section_name, asect->name) != 0)
767 continue; /* not the section we need. */
768 if (memaddr >= p->addr)
770 if (memend <= p->endaddr)
772 /* Entire transfer is within this section. */
774 res = bfd_set_section_contents (abfd, asect,
775 writebuf, memaddr - p->addr,
778 res = bfd_get_section_contents (abfd, asect,
779 readbuf, memaddr - p->addr,
785 return TARGET_XFER_OK;
788 return TARGET_XFER_EOF;
790 else if (memaddr >= p->endaddr)
792 /* This section ends before the transfer starts. */
797 /* This section overlaps the transfer. Just do half. */
798 len = p->endaddr - memaddr;
800 res = bfd_set_section_contents (abfd, asect,
801 writebuf, memaddr - p->addr,
804 res = bfd_get_section_contents (abfd, asect,
805 readbuf, memaddr - p->addr,
810 return TARGET_XFER_OK;
813 return TARGET_XFER_EOF;
818 return TARGET_XFER_EOF; /* We can't help. */
821 static struct target_section_table *
822 exec_get_section_table (struct target_ops *ops)
824 return current_target_sections;
827 static enum target_xfer_status
828 exec_xfer_partial (struct target_ops *ops, enum target_object object,
829 const char *annex, gdb_byte *readbuf,
830 const gdb_byte *writebuf,
831 ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
833 struct target_section_table *table = target_get_section_table (ops);
835 if (object == TARGET_OBJECT_MEMORY)
836 return section_table_xfer_memory_partial (readbuf, writebuf,
837 offset, len, xfered_len,
842 return TARGET_XFER_E_IO;
847 print_section_info (struct target_section_table *t, bfd *abfd)
849 struct gdbarch *gdbarch = gdbarch_from_bfd (abfd);
850 struct target_section *p;
851 /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */
852 int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16;
854 printf_filtered ("\t`%s', ", bfd_get_filename (abfd));
856 printf_filtered (_("file type %s.\n"), bfd_get_target (abfd));
857 if (abfd == exec_bfd)
859 /* gcc-3.4 does not like the initialization in
860 <p == t->sections_end>. */
861 bfd_vma displacement = 0;
864 for (p = t->sections; p < t->sections_end; p++)
866 struct bfd_section *psect = p->the_bfd_section;
867 bfd *pbfd = psect->owner;
869 if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD))
870 != (SEC_ALLOC | SEC_LOAD))
873 if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address
874 && abfd->start_address < (bfd_get_section_vma (pbfd, psect)
875 + bfd_get_section_size (psect)))
877 displacement = p->addr - bfd_get_section_vma (pbfd, psect);
881 if (p == t->sections_end)
882 warning (_("Cannot find section for the entry point of %s."),
883 bfd_get_filename (abfd));
885 entry_point = gdbarch_addr_bits_remove (gdbarch,
886 bfd_get_start_address (abfd)
888 printf_filtered (_("\tEntry point: %s\n"),
889 paddress (gdbarch, entry_point));
891 for (p = t->sections; p < t->sections_end; p++)
893 struct bfd_section *psect = p->the_bfd_section;
894 bfd *pbfd = psect->owner;
896 printf_filtered ("\t%s", hex_string_custom (p->addr, wid));
897 printf_filtered (" - %s", hex_string_custom (p->endaddr, wid));
899 /* FIXME: A format of "08l" is not wide enough for file offsets
900 larger than 4GB. OTOH, making it "016l" isn't desirable either
901 since most output will then be much wider than necessary. It
902 may make sense to test the size of the file and choose the
903 format string accordingly. */
904 /* FIXME: i18n: Need to rewrite this sentence. */
906 printf_filtered (" @ %s",
907 hex_string_custom (psect->filepos, 8));
908 printf_filtered (" is %s", bfd_section_name (pbfd, psect));
910 printf_filtered (" in %s", bfd_get_filename (pbfd));
911 printf_filtered ("\n");
916 exec_files_info (struct target_ops *t)
919 print_section_info (current_target_sections, exec_bfd);
921 puts_filtered (_("\t<no file loaded>\n"));
925 set_section_command (char *args, int from_tty)
927 struct target_section *p;
930 unsigned long secaddr;
933 struct target_section_table *table;
936 error (_("Must specify section name and its virtual address"));
938 /* Parse out section name. */
939 for (secname = args; !isspace (*args); args++);
940 seclen = args - secname;
942 /* Parse out new virtual address. */
943 secaddr = parse_and_eval_address (args);
945 table = current_target_sections;
946 for (p = table->sections; p < table->sections_end; p++)
948 if (!strncmp (secname, bfd_section_name (p->bfd,
949 p->the_bfd_section), seclen)
950 && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0')
952 offset = secaddr - p->addr;
954 p->endaddr += offset;
956 exec_files_info (&exec_ops);
960 if (seclen >= sizeof (secprint))
961 seclen = sizeof (secprint) - 1;
962 strncpy (secprint, secname, seclen);
963 secprint[seclen] = '\0';
964 error (_("Section %s not found"), secprint);
967 /* If we can find a section in FILENAME with BFD index INDEX, adjust
971 exec_set_section_address (const char *filename, int index, CORE_ADDR address)
973 struct target_section *p;
974 struct target_section_table *table;
976 table = current_target_sections;
977 for (p = table->sections; p < table->sections_end; p++)
979 if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0
980 && index == p->the_bfd_section->index)
982 p->endaddr += address - p->addr;
988 /* If mourn is being called in all the right places, this could be say
989 `gdb internal error' (since generic_mourn calls
990 breakpoint_init_inferior). */
993 ignore (struct target_ops *ops, struct gdbarch *gdbarch,
994 struct bp_target_info *bp_tgt)
1000 exec_has_memory (struct target_ops *ops)
1002 /* We can provide memory if we have any file/target sections to read
1004 return (current_target_sections->sections
1005 != current_target_sections->sections_end);
1009 exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size)
1011 error (_("Can't create a corefile"));
1014 /* Fill in the exec file target vector. Very few entries need to be
1018 init_exec_ops (void)
1020 exec_ops.to_shortname = "exec";
1021 exec_ops.to_longname = "Local exec file";
1022 exec_ops.to_doc = "Use an executable file as a target.\n\
1023 Specify the filename of the executable file.";
1024 exec_ops.to_open = exec_open;
1025 exec_ops.to_close = exec_close_1;
1026 exec_ops.to_xfer_partial = exec_xfer_partial;
1027 exec_ops.to_get_section_table = exec_get_section_table;
1028 exec_ops.to_files_info = exec_files_info;
1029 exec_ops.to_insert_breakpoint = ignore;
1030 exec_ops.to_remove_breakpoint = ignore;
1031 exec_ops.to_stratum = file_stratum;
1032 exec_ops.to_has_memory = exec_has_memory;
1033 exec_ops.to_make_corefile_notes = exec_make_note_section;
1034 exec_ops.to_find_memory_regions = objfile_find_memory_regions;
1035 exec_ops.to_magic = OPS_MAGIC;
1039 _initialize_exec (void)
1041 struct cmd_list_element *c;
1047 c = add_cmd ("file", class_files, file_command, _("\
1048 Use FILE as program to be debugged.\n\
1049 It is read for its symbols, for getting the contents of pure memory,\n\
1050 and it is the program executed when you use the `run' command.\n\
1051 If FILE cannot be found as specified, your execution directory path\n\
1052 ($PATH) is searched for a command of that name.\n\
1053 No arg means to have no executable file and no symbols."), &cmdlist);
1054 set_cmd_completer (c, filename_completer);
1057 c = add_cmd ("exec-file", class_files, exec_file_command, _("\
1058 Use FILE as program for getting contents of pure memory.\n\
1059 If FILE cannot be found as specified, your execution directory path\n\
1060 is searched for a command of that name.\n\
1061 No arg means have no executable file."), &cmdlist);
1062 set_cmd_completer (c, filename_completer);
1064 add_com ("section", class_files, set_section_command, _("\
1065 Change the base address of section SECTION of the exec file to ADDR.\n\
1066 This can be used if the exec file does not contain section addresses,\n\
1067 (such as in the a.out format), or when the addresses specified in the\n\
1068 file itself are wrong. Each section must be changed separately. The\n\
1069 ``info files'' command lists all the sections and their addresses."));
1071 add_setshow_boolean_cmd ("write", class_support, &write_files, _("\
1072 Set writing into executable and core files."), _("\
1073 Show writing into executable and core files."), NULL,
1076 &setlist, &showlist);
1078 add_target_with_completer (&exec_ops, filename_completer);