1991-03-28 17:28:29 +01:00
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/* Work with core dump and executable files, for GDB.
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1992-02-21 02:33:14 +01:00
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Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
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1991-03-28 17:28:29 +01:00
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This file is part of GDB.
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1991-06-04 09:31:55 +02:00
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This program is free software; you can redistribute it and/or modify
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1991-03-28 17:28:29 +01:00
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it under the terms of the GNU General Public License as published by
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1991-06-04 09:31:55 +02:00
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1991-03-28 17:28:29 +01:00
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1991-06-04 09:31:55 +02:00
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This program is distributed in the hope that it will be useful,
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1991-03-28 17:28:29 +01:00
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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1991-06-04 09:31:55 +02:00
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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1991-03-28 17:28:29 +01:00
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1992-03-04 00:26:26 +01:00
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#include "defs.h"
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1991-03-28 17:28:29 +01:00
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#include <errno.h>
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#include <signal.h>
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Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
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#include <fcntl.h>
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1991-03-28 17:28:29 +01:00
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#include "frame.h" /* required by inferior.h */
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#include "inferior.h"
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#include "symtab.h"
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#include "command.h"
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#include "bfd.h"
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#include "target.h"
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#include "gdbcore.h"
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1992-02-21 02:33:14 +01:00
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#ifdef SOLIB_ADD
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static int
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solib_add_stub PARAMS ((char *));
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#endif
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static void
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core_close PARAMS ((int));
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static void
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core_open PARAMS ((char *, int));
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static void
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core_detach PARAMS ((char *, int));
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static void
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get_core_registers PARAMS ((int));
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static void
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core_files_info PARAMS ((struct target_ops *));
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1991-03-28 17:28:29 +01:00
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extern char registers[];
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/* Hook for `exec_file_command' command to call. */
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1992-02-21 02:33:14 +01:00
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void (*exec_file_display_hook) PARAMS ((char *)) = NULL;
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1991-03-28 17:28:29 +01:00
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/* Binary file diddling handle for the core file. */
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bfd *core_bfd = NULL;
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/* Forward decl */
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extern struct target_ops core_ops;
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/* Discard all vestiges of any previous core file
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and mark data and stack spaces as empty. */
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1991-05-02 06:28:42 +02:00
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/* ARGSUSED */
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1992-02-21 02:33:14 +01:00
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static void
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1991-03-28 17:28:29 +01:00
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core_close (quitting)
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int quitting;
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{
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if (core_bfd) {
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free (bfd_get_filename (core_bfd));
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bfd_close (core_bfd);
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core_bfd = NULL;
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1991-04-23 02:05:24 +02:00
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#ifdef CLEAR_SOLIB
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CLEAR_SOLIB ();
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#endif
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1992-02-21 02:33:14 +01:00
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if (core_ops.to_sections) {
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1992-03-30 01:26:47 +02:00
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free ((PTR)core_ops.to_sections);
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1992-02-21 02:33:14 +01:00
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core_ops.to_sections = NULL;
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core_ops.to_sections_end = NULL;
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1991-08-14 02:01:20 +02:00
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}
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1991-03-28 17:28:29 +01:00
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}
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}
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1991-08-19 22:55:06 +02:00
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#ifdef SOLIB_ADD
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/* Stub function for catch_errors around shared library hacking. */
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1992-02-21 02:33:14 +01:00
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static int
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1991-08-19 22:55:06 +02:00
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solib_add_stub (from_tty)
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Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
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char *from_tty;
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1991-08-19 22:55:06 +02:00
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{
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Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
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SOLIB_ADD (NULL, (int)from_tty, &core_ops);
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1991-08-19 22:55:06 +02:00
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return 0;
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}
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#endif /* SOLIB_ADD */
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1991-03-28 17:28:29 +01:00
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/* This routine opens and sets up the core file bfd */
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1992-02-21 02:33:14 +01:00
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static void
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1991-03-28 17:28:29 +01:00
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core_open (filename, from_tty)
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char *filename;
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int from_tty;
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{
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1991-07-19 08:45:19 +02:00
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const char *p;
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1991-03-28 17:28:29 +01:00
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int siggy;
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struct cleanup *old_chain;
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char *temp;
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bfd *temp_bfd;
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int ontop;
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Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
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int scratch_chan;
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1991-03-28 17:28:29 +01:00
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1991-04-19 03:36:57 +02:00
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target_preopen (from_tty);
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1991-03-28 17:28:29 +01:00
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if (!filename)
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{
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error (core_bfd?
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"No core file specified. (Use `detach' to stop debugging a core file.)"
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: "No core file specified.");
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}
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filename = tilde_expand (filename);
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if (filename[0] != '/') {
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1991-11-12 18:50:14 +01:00
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temp = concat (current_directory, "/", filename, NULL);
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1991-03-28 17:28:29 +01:00
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free (filename);
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filename = temp;
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}
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old_chain = make_cleanup (free, filename);
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Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
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scratch_chan = open (filename, write_files? O_RDWR: O_RDONLY, 0);
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if (scratch_chan < 0)
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perror_with_name (filename);
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temp_bfd = bfd_fdopenr (filename, NULL, scratch_chan);
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1991-03-28 17:28:29 +01:00
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if (temp_bfd == NULL)
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{
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perror_with_name (filename);
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}
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if (!bfd_check_format (temp_bfd, bfd_core))
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{
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1992-02-21 02:33:14 +01:00
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/* Do it after the err msg */
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make_cleanup (bfd_close, temp_bfd);
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1991-10-16 20:42:05 +01:00
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error ("\"%s\" is not a core dump: %s", filename, bfd_errmsg(bfd_error));
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1991-03-28 17:28:29 +01:00
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}
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/* Looks semi-reasonable. Toss the old core file and work on the new. */
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discard_cleanups (old_chain); /* Don't free filename any more */
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unpush_target (&core_ops);
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core_bfd = temp_bfd;
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old_chain = make_cleanup (core_close, core_bfd);
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validate_files ();
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/* Find the data section */
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1992-02-21 02:33:14 +01:00
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if (build_section_table (core_bfd, &core_ops.to_sections,
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&core_ops.to_sections_end))
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1991-03-28 17:28:29 +01:00
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error ("Can't find sections in `%s': %s", bfd_get_filename(core_bfd),
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bfd_errmsg (bfd_error));
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ontop = !push_target (&core_ops);
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1991-08-14 02:01:20 +02:00
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discard_cleanups (old_chain);
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1991-03-28 17:28:29 +01:00
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p = bfd_core_file_failing_command (core_bfd);
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if (p)
|
1992-09-15 08:27:18 +02:00
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printf_filtered ("Core was generated by `%s'.\n", p);
|
1991-03-28 17:28:29 +01:00
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siggy = bfd_core_file_failing_signal (core_bfd);
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if (siggy > 0)
|
1992-09-15 08:27:18 +02:00
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printf_filtered ("Program terminated with signal %d, %s.\n", siggy,
|
1992-04-22 18:46:47 +02:00
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|
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safe_strsignal (siggy));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
|
|
|
|
if (ontop) {
|
|
|
|
|
/* Fetch all registers from core file */
|
|
|
|
|
target_fetch_registers (-1);
|
1991-08-19 22:55:06 +02:00
|
|
|
|
|
1991-08-14 02:01:20 +02:00
|
|
|
|
/* Add symbols and section mappings for any shared libraries */
|
1991-04-23 02:05:24 +02:00
|
|
|
|
#ifdef SOLIB_ADD
|
* breakpoint.c, buildsym.c, c-exp.y, coffread.c, command.c,
core.c, cplus-dem.c, dbxread.c, dwarfread.c, elfread.c, environ.c,
eval.c, findvar.c, gdbtypes.c, hppabsd-tdep.c, hppahpux-tdep.c,
i386-tdep.c, ieee-float.c, infcmd.c, inflow.c, infptrace.c,
infrun.c, m2-exp.y, mipsread.c, objfiles.c, parse.c, procfs.c,
putenv.c, remote-mm.c, remote-vx.c, solib.c, sparc-tdep.c,
sparc-xdep.c, stack.c, symfile.c, symtab.c, symtab.h, target.c,
tm-i386v.h, tm-sparc.h, utils.c, valarith.c, valops.c, valprint.c,
values.c, xcoffread.c:
Remove "(void)" casts from function calls where the return value
is ignored, in accordance with GNU coding standards.
1992-07-04 05:22:08 +02:00
|
|
|
|
catch_errors (solib_add_stub, (char *)from_tty, (char *)0);
|
1991-04-23 02:05:24 +02:00
|
|
|
|
#endif
|
1991-09-11 03:49:50 +02:00
|
|
|
|
|
1991-05-05 01:15:02 +02:00
|
|
|
|
/* Now, set up the frame cache, and print the top of stack */
|
1991-09-11 03:49:50 +02:00
|
|
|
|
set_current_frame (create_new_frame (read_register (FP_REGNUM),
|
|
|
|
|
read_pc ()));
|
1991-05-05 01:15:02 +02:00
|
|
|
|
select_frame (get_current_frame (), 0);
|
1991-09-11 03:49:50 +02:00
|
|
|
|
print_stack_frame (selected_frame, selected_frame_level, 1);
|
1991-03-28 17:28:29 +01:00
|
|
|
|
} else {
|
1992-04-24 03:45:47 +02:00
|
|
|
|
warning (
|
|
|
|
|
"you won't be able to access this core file until you terminate\n\
|
|
|
|
|
your %s; do ``info files''", current_target->to_longname);
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-21 02:33:14 +01:00
|
|
|
|
static void
|
1991-03-28 17:28:29 +01:00
|
|
|
|
core_detach (args, from_tty)
|
|
|
|
|
char *args;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
|
|
|
|
if (args)
|
|
|
|
|
error ("Too many arguments");
|
1991-04-05 11:02:10 +02:00
|
|
|
|
unpush_target (&core_ops);
|
1991-03-28 17:28:29 +01:00
|
|
|
|
if (from_tty)
|
1992-09-15 08:27:18 +02:00
|
|
|
|
printf_filtered ("No core file now.\n");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Backward compatability with old way of specifying core files. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
core_file_command (filename, from_tty)
|
|
|
|
|
char *filename;
|
|
|
|
|
int from_tty;
|
|
|
|
|
{
|
1991-04-05 11:02:10 +02:00
|
|
|
|
dont_repeat (); /* Either way, seems bogus. */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
if (!filename)
|
|
|
|
|
core_detach (filename, from_tty);
|
|
|
|
|
else
|
|
|
|
|
core_open (filename, from_tty);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Call this to specify the hook for exec_file_command to call back.
|
|
|
|
|
This is called from the x-window display code. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
specify_exec_file_hook (hook)
|
1992-02-21 02:33:14 +01:00
|
|
|
|
void (*hook) PARAMS ((char *));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
{
|
|
|
|
|
exec_file_display_hook = hook;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The exec file must be closed before running an inferior.
|
|
|
|
|
If it is needed again after the inferior dies, it must
|
|
|
|
|
be reopened. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
close_exec_file ()
|
|
|
|
|
{
|
|
|
|
|
#ifdef FIXME
|
|
|
|
|
if (exec_bfd)
|
|
|
|
|
bfd_tempclose (exec_bfd);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
reopen_exec_file ()
|
|
|
|
|
{
|
|
|
|
|
#ifdef FIXME
|
|
|
|
|
if (exec_bfd)
|
|
|
|
|
bfd_reopen (exec_bfd);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we have both a core file and an exec file,
|
1991-08-14 02:01:20 +02:00
|
|
|
|
print a warning if they don't go together. */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
validate_files ()
|
|
|
|
|
{
|
|
|
|
|
if (exec_bfd && core_bfd)
|
|
|
|
|
{
|
Make writing to files work properly. (Fixes to BFD are also needed.)
* core.c (core_open): Open file ourselves, read or r/w, depending on
write_files. Use bfd_fdopenr.
* gdbcore.h (write_files): New variable.
* exec.c (write_files): Define variable, add set&show for it.
(exec_file_command): Use write_files to open for read or r/write.
Make shared library reading happen automatically. These changes
are mostly from Peter Schauer <pes@regent.e-technik.tu-muenchen.de>.
* inferior.h (stop_soon_quietly): Add to exported variables.
* infrun.c (child_create_inferior): call solib hook, if defined.
(child_attach): call solib hook, if defined.
* solib.c: Include inferior.h. Add from_tty to so_list as kludge.
(find_solib): Use lookup_misc_func rather than hand-rolled.
(symbol_add_stub): New stub for catch_errors.
(solib_add): Avoid output if !from_tty. Catch errors rather
than just calling symbol_file_add and bombing.
(solib_create_inferior_hook): Interface with the target process
to let it read and alloc shared libs, then figure out what it did.
* core.c (validate_files): Fix typo, soften warning.
(Fix from Hiroto Kagotani <kagotani@cs.titech.ac.jp>.)
* utils.c (fputs_demangled): Avoid duplicate printing if
demangling is off. (Fix from J.T. Conklin <jtc@cayenne.com>.)
* infrun.c (proceed): Cast -1 to (CORE_ADDR) before comparing.
(Fix from pierre@la.tce.com (Pierre Willard).)
* main.c (catch_errors): Change argument to a char * from an int,
since a char * can point to a struct full of glop, but an int
is not guaranteed to be able to hold a pointer.
* breakpoint.c (breakpoint_cond_eval, bpstat_stop_status,
breakpoint_re_set_one, breakpoint_re_set): Adapt.
* core.c (core_open, solib_add_stub): Adapt.
* remote-vx.c (symbol_stub, add_symbol_stub, callers): Adapt.
1991-09-04 09:43:50 +02:00
|
|
|
|
if (!core_file_matches_executable_p (core_bfd, exec_bfd))
|
1992-04-24 03:45:47 +02:00
|
|
|
|
warning ("core file may not match specified executable file.");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
else if (bfd_get_mtime(exec_bfd) > bfd_get_mtime(core_bfd))
|
1992-04-24 03:45:47 +02:00
|
|
|
|
warning ("exec file is newer than core file.");
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the name of the executable file as a string.
|
|
|
|
|
ERR nonzero means get error if there is none specified;
|
|
|
|
|
otherwise return 0 in that case. */
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
get_exec_file (err)
|
|
|
|
|
int err;
|
|
|
|
|
{
|
|
|
|
|
if (exec_bfd) return bfd_get_filename(exec_bfd);
|
|
|
|
|
if (!err) return NULL;
|
|
|
|
|
|
|
|
|
|
error ("No executable file specified.\n\
|
|
|
|
|
Use the \"file\" or \"exec-file\" command.");
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
1991-08-14 02:01:20 +02:00
|
|
|
|
core_files_info (t)
|
|
|
|
|
struct target_ops *t;
|
1991-03-28 17:28:29 +01:00
|
|
|
|
{
|
1992-01-31 09:45:11 +01:00
|
|
|
|
print_section_info (t, core_bfd);
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
|
1992-02-21 02:33:14 +01:00
|
|
|
|
/* Report a memory error with error(). */
|
|
|
|
|
|
1991-03-28 17:28:29 +01:00
|
|
|
|
void
|
|
|
|
|
memory_error (status, memaddr)
|
|
|
|
|
int status;
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
if (status == EIO)
|
|
|
|
|
{
|
|
|
|
|
/* Actually, address between memaddr and memaddr + len
|
|
|
|
|
was out of bounds. */
|
1991-09-19 11:13:50 +02:00
|
|
|
|
error ("Cannot access memory at address %s.", local_hex_string(memaddr));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1992-04-22 18:46:47 +02:00
|
|
|
|
error ("Error accessing memory address %s: %s.",
|
|
|
|
|
local_hex_string (memaddr), safe_strerror (status));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Same as target_read_memory, but report an error if can't read. */
|
|
|
|
|
void
|
|
|
|
|
read_memory (memaddr, myaddr, len)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
int status;
|
|
|
|
|
status = target_read_memory (memaddr, myaddr, len);
|
|
|
|
|
if (status != 0)
|
|
|
|
|
memory_error (status, memaddr);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Same as target_write_memory, but report an error if can't write. */
|
|
|
|
|
void
|
|
|
|
|
write_memory (memaddr, myaddr, len)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
int status;
|
|
|
|
|
|
|
|
|
|
status = target_write_memory (memaddr, myaddr, len);
|
|
|
|
|
if (status != 0)
|
|
|
|
|
memory_error (status, memaddr);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read an integer from debugged memory, given address and number of bytes. */
|
|
|
|
|
|
|
|
|
|
long
|
|
|
|
|
read_memory_integer (memaddr, len)
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
char cbuf;
|
|
|
|
|
short sbuf;
|
|
|
|
|
int ibuf;
|
|
|
|
|
long lbuf;
|
|
|
|
|
|
|
|
|
|
if (len == sizeof (char))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, &cbuf, len);
|
|
|
|
|
return cbuf;
|
|
|
|
|
}
|
|
|
|
|
if (len == sizeof (short))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, (char *)&sbuf, len);
|
|
|
|
|
SWAP_TARGET_AND_HOST (&sbuf, sizeof (short));
|
|
|
|
|
return sbuf;
|
|
|
|
|
}
|
|
|
|
|
if (len == sizeof (int))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, (char *)&ibuf, len);
|
|
|
|
|
SWAP_TARGET_AND_HOST (&ibuf, sizeof (int));
|
|
|
|
|
return ibuf;
|
|
|
|
|
}
|
|
|
|
|
if (len == sizeof (lbuf))
|
|
|
|
|
{
|
|
|
|
|
read_memory (memaddr, (char *)&lbuf, len);
|
|
|
|
|
SWAP_TARGET_AND_HOST (&lbuf, sizeof (lbuf));
|
|
|
|
|
return lbuf;
|
|
|
|
|
}
|
|
|
|
|
error ("Cannot handle integers of %d bytes.", len);
|
|
|
|
|
return -1; /* for lint */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Get the registers out of a core file. This is the machine-
|
|
|
|
|
independent part. Fetch_core_registers is the machine-dependent
|
|
|
|
|
part, typically implemented in the xm-file for each architecture. */
|
|
|
|
|
|
1991-05-02 06:28:42 +02:00
|
|
|
|
/* We just get all the registers, so we don't use regno. */
|
|
|
|
|
/* ARGSUSED */
|
1991-05-05 01:15:02 +02:00
|
|
|
|
static void
|
1991-03-28 17:28:29 +01:00
|
|
|
|
get_core_registers (regno)
|
|
|
|
|
int regno;
|
|
|
|
|
{
|
|
|
|
|
sec_ptr reg_sec;
|
|
|
|
|
unsigned size;
|
|
|
|
|
char *the_regs;
|
|
|
|
|
|
|
|
|
|
reg_sec = bfd_get_section_by_name (core_bfd, ".reg");
|
1991-10-11 01:27:41 +01:00
|
|
|
|
if (!reg_sec) goto cant;
|
1991-03-28 17:28:29 +01:00
|
|
|
|
size = bfd_section_size (core_bfd, reg_sec);
|
|
|
|
|
the_regs = alloca (size);
|
1991-10-16 20:42:05 +01:00
|
|
|
|
if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr)0, size))
|
1991-03-28 17:28:29 +01:00
|
|
|
|
{
|
1991-10-16 20:42:05 +01:00
|
|
|
|
fetch_core_registers (the_regs, size, 0,
|
|
|
|
|
(unsigned) bfd_section_vma (abfd,reg_sec));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1991-10-11 01:27:41 +01:00
|
|
|
|
cant:
|
1992-09-15 08:27:18 +02:00
|
|
|
|
fprintf_filtered (stderr, "Couldn't fetch registers from core file: %s\n",
|
1991-03-28 17:28:29 +01:00
|
|
|
|
bfd_errmsg (bfd_error));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now do it again for the float registers, if they exist. */
|
|
|
|
|
reg_sec = bfd_get_section_by_name (core_bfd, ".reg2");
|
|
|
|
|
if (reg_sec) {
|
|
|
|
|
size = bfd_section_size (core_bfd, reg_sec);
|
|
|
|
|
the_regs = alloca (size);
|
1991-10-16 20:42:05 +01:00
|
|
|
|
if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr)0,
|
|
|
|
|
size))
|
1991-03-28 17:28:29 +01:00
|
|
|
|
{
|
1991-10-16 20:42:05 +01:00
|
|
|
|
fetch_core_registers (the_regs, size, 2,
|
|
|
|
|
(unsigned) bfd_section_vma (abfd,reg_sec));
|
1991-03-28 17:28:29 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1992-09-15 08:27:18 +02:00
|
|
|
|
fprintf_filtered (stderr, "Couldn't fetch register set 2 from core file: %s\n",
|
1991-03-28 17:28:29 +01:00
|
|
|
|
bfd_errmsg (bfd_error));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
registers_fetched();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct target_ops core_ops = {
|
|
|
|
|
"core", "Local core dump file",
|
1991-04-19 03:36:57 +02:00
|
|
|
|
"Use a core file as a target. Specify the filename of the core file.",
|
1991-03-28 17:28:29 +01:00
|
|
|
|
core_open, core_close,
|
1992-09-22 09:23:35 +02:00
|
|
|
|
find_default_attach, core_detach, 0, 0, /* resume, wait */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
get_core_registers,
|
1992-09-18 11:56:28 +02:00
|
|
|
|
0, 0, /* store_regs, prepare_to_store */
|
1991-08-14 02:01:20 +02:00
|
|
|
|
xfer_memory, core_files_info,
|
1991-03-28 17:28:29 +01:00
|
|
|
|
0, 0, /* core_insert_breakpoint, core_remove_breakpoint, */
|
|
|
|
|
0, 0, 0, 0, 0, /* terminal stuff */
|
1992-02-21 02:33:14 +01:00
|
|
|
|
0, 0, 0, /* kill, load, lookup sym */
|
1992-09-22 09:23:35 +02:00
|
|
|
|
find_default_create_inferior, 0, /* mourn_inferior */
|
|
|
|
|
0, /* can_run */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
core_stratum, 0, /* next */
|
|
|
|
|
0, 1, 1, 1, 0, /* all mem, mem, stack, regs, exec */
|
1991-08-14 02:01:20 +02:00
|
|
|
|
0, 0, /* section pointers */
|
1991-03-28 17:28:29 +01:00
|
|
|
|
OPS_MAGIC, /* Always the last thing */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_core()
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
add_com ("core-file", class_files, core_file_command,
|
|
|
|
|
"Use FILE as core dump for examining memory and registers.\n\
|
|
|
|
|
No arg means have no core file. This command has been superseded by the\n\
|
|
|
|
|
`target core' and `detach' commands.");
|
|
|
|
|
add_target (&core_ops);
|
|
|
|
|
}
|