1999-04-16 09:35:26 +08:00
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/* Core dump and executable file functions below target vector, for GDB.
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2003-10-23 11:01:55 +08:00
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Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
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2004-02-14 12:41:33 +08:00
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1997, 1998, 1999, 2000, 2001, 2003, 2004 Free Software Foundation,
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Inc.
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1999-04-16 09:35:26 +08:00
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1999-07-08 04:19:36 +08:00
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This file is part of GDB.
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1999-04-16 09:35:26 +08:00
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1999-07-08 04:19:36 +08:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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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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1999-04-16 09:35:26 +08:00
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1999-07-08 04:19:36 +08:00
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This program is distributed in the hope that it will be useful,
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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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1999-04-16 09:35:26 +08:00
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1999-07-08 04:19:36 +08:00
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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1999-04-16 09:35:26 +08:00
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#include "defs.h"
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2003-10-30 04:59:07 +08:00
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#include "arch-utils.h"
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1999-04-16 09:35:26 +08:00
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#include "gdb_string.h"
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#include <errno.h>
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#include <signal.h>
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#include <fcntl.h>
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2001-02-15 02:48:40 +08:00
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#ifdef HAVE_SYS_FILE_H
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#include <sys/file.h> /* needed for F_OK and friends */
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#endif
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1999-07-08 04:19:36 +08:00
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#include "frame.h" /* required by inferior.h */
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1999-04-16 09:35:26 +08:00
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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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#include "gdbthread.h"
|
2001-03-01 09:39:22 +08:00
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#include "regcache.h"
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2003-10-30 04:59:07 +08:00
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#include "regset.h"
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2001-11-02 00:17:08 +08:00
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#include "symfile.h"
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2003-10-23 11:01:55 +08:00
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#include "exec.h"
|
2004-02-28 Andrew Cagney <cagney@redhat.com>
* utils.c: Use "", instead of <>, to include readline.
tui/tui-win.c, tui/tui.c, tui/tui-hooks.c: Ditto.
* tracepoint.c, top.c, symmisc.c, symfile.c: Ditto.
* source.c, solib.c, exec.c, event-top.c: Ditto.
* corelow.c, completer.c, cli/cli-setshow.c: Ditto.
* cli/cli-dump.c, cli/cli-cmds.c: Ditto.
* Makefile.in: Update all dependencies.
(readline_tilde_h, readline_history_h): Define.
(readline_headers): Delete.
2004-02-29 02:04:37 +08:00
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#include "readline/readline.h"
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2004-05-26 00:04:07 +08:00
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#include "observer.h"
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2003-10-30 04:59:07 +08:00
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#include "gdb_assert.h"
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2000-08-27 12:21:35 +08:00
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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2004-07-06 22:24:06 +08:00
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#ifndef O_LARGEFILE
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#define O_LARGEFILE 0
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#endif
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2004-04-22 01:47:10 +08:00
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/* List of all available core_fns. On gdb startup, each core file
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register reader calls deprecated_add_core_fns() to register
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information on each core format it is prepared to read. */
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1999-04-16 09:35:26 +08:00
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static struct core_fns *core_file_fns = NULL;
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1999-10-06 07:13:56 +08:00
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/* The core_fns for a core file handler that is prepared to read the core
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file currently open on core_bfd. */
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static struct core_fns *core_vec = NULL;
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2003-10-30 04:59:07 +08:00
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/* FIXME: kettenis/20031023: Eventually this variable should
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disappear. */
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struct gdbarch *core_gdbarch = NULL;
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2000-05-28 09:12:42 +08:00
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static void core_files_info (struct target_ops *);
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1999-04-16 09:35:26 +08:00
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#ifdef SOLIB_ADD
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2003-01-18 Andrew Cagney <ac131313@redhat.com>
* ada-valprint.c: Eliminate PTR.
* breakpoint.c, corelow.c, cris-tdep.c, dbxread.c: Ditto.
* defs.h, dve3900-rom.c, dwarf2read.c, dwarfread.c: Ditto.
* exec.c, hppa-tdep.c, hpread.c, infcmd.c, mdebugread.c: Ditto.
* objfiles.c, objfiles.h, ocd.c, remote-es.c: Ditto.
* remote-mips.c, remote-sds.c, remote-vx.c: Ditto.
* solib-svr4.c, solib.c, stack.c, symfile.c, symfile.h: Ditto.
* symmisc.c, v850ice.c, xcoffread.c, cli/cli-script.c: Ditto.
2003-01-18 23:55:53 +08:00
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static int solib_add_stub (void *);
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1999-04-16 09:35:26 +08:00
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#endif
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2000-05-28 09:12:42 +08:00
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static struct core_fns *sniff_core_bfd (bfd *);
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1999-10-06 07:13:56 +08:00
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2002-12-01 00:33:55 +08:00
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static int gdb_check_format (bfd *);
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1999-10-06 07:13:56 +08:00
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2000-05-28 09:12:42 +08:00
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static void core_open (char *, int);
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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static void core_detach (char *, int);
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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static void core_close (int);
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1999-04-16 09:35:26 +08:00
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2000-05-22 17:02:23 +08:00
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static void core_close_cleanup (void *ignore);
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2000-05-28 09:12:42 +08:00
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static void get_core_registers (int);
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1999-04-16 09:35:26 +08:00
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|
2003-01-18 Andrew Cagney <ac131313@redhat.com>
* ada-valprint.c: Eliminate PTR.
* breakpoint.c, corelow.c, cris-tdep.c, dbxread.c: Ditto.
* defs.h, dve3900-rom.c, dwarf2read.c, dwarfread.c: Ditto.
* exec.c, hppa-tdep.c, hpread.c, infcmd.c, mdebugread.c: Ditto.
* objfiles.c, objfiles.h, ocd.c, remote-es.c: Ditto.
* remote-mips.c, remote-sds.c, remote-vx.c: Ditto.
* solib-svr4.c, solib.c, stack.c, symfile.c, symfile.h: Ditto.
* symmisc.c, v850ice.c, xcoffread.c, cli/cli-script.c: Ditto.
2003-01-18 23:55:53 +08:00
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static void add_to_thread_list (bfd *, asection *, void *);
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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static int ignore (CORE_ADDR, char *);
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1999-04-16 09:35:26 +08:00
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2001-05-04 12:15:33 +08:00
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static int core_file_thread_alive (ptid_t tid);
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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static void init_core_ops (void);
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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void _initialize_corelow (void);
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1999-04-16 09:35:26 +08:00
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struct target_ops core_ops;
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/* Link a new core_fns into the global core_file_fns list. Called on gdb
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startup by the _initialize routine in each core file register reader, to
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register information about each format the the reader is prepared to
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handle. */
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void
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2004-04-22 01:47:10 +08:00
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deprecated_add_core_fns (struct core_fns *cf)
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1999-04-16 09:35:26 +08:00
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{
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1999-07-08 04:19:36 +08:00
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cf->next = core_file_fns;
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1999-04-16 09:35:26 +08:00
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core_file_fns = cf;
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}
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1999-10-06 07:13:56 +08:00
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/* The default function that core file handlers can use to examine a
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core file BFD and decide whether or not to accept the job of
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reading the core file. */
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int
|
2000-07-30 09:48:28 +08:00
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default_core_sniffer (struct core_fns *our_fns, bfd *abfd)
|
1999-10-06 07:13:56 +08:00
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{
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int result;
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result = (bfd_get_flavour (abfd) == our_fns -> core_flavour);
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return (result);
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}
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/* Walk through the list of core functions to find a set that can
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handle the core file open on ABFD. Default to the first one in the
|
2000-09-02 07:41:20 +08:00
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list if nothing matches. Returns pointer to set that is
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1999-10-06 07:13:56 +08:00
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selected. */
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static struct core_fns *
|
2000-07-30 09:48:28 +08:00
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sniff_core_bfd (bfd *abfd)
|
1999-10-06 07:13:56 +08:00
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{
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struct core_fns *cf;
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struct core_fns *yummy = NULL;
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int matches = 0;;
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|
2003-10-30 04:59:07 +08:00
|
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/* Don't sniff if we have support for register sets in CORE_GDBARCH. */
|
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if (core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
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return NULL;
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|
1999-10-06 07:13:56 +08:00
|
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for (cf = core_file_fns; cf != NULL; cf = cf->next)
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{
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if (cf->core_sniffer (cf, abfd))
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{
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yummy = cf;
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matches++;
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}
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}
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if (matches > 1)
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{
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warning ("\"%s\": ambiguous core format, %d handlers match",
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bfd_get_filename (abfd), matches);
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}
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|
else if (matches == 0)
|
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|
{
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|
warning ("\"%s\": no core file handler recognizes format, using default",
|
|
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|
|
bfd_get_filename (abfd));
|
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|
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}
|
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if (yummy == NULL)
|
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{
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yummy = core_file_fns;
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}
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return (yummy);
|
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}
|
|
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/* The default is to reject every core file format we see. Either
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|
BFD has to recognize it, or we have to provide a function in the
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|
core file handler that recognizes it. */
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int
|
2000-07-30 09:48:28 +08:00
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default_check_format (bfd *abfd)
|
1999-10-06 07:13:56 +08:00
|
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{
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return (0);
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}
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|
/* Attempt to recognize core file formats that BFD rejects. */
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|
2002-12-01 00:33:55 +08:00
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static int
|
2000-07-30 09:48:28 +08:00
|
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gdb_check_format (bfd *abfd)
|
1999-10-06 07:13:56 +08:00
|
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{
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struct core_fns *cf;
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for (cf = core_file_fns; cf != NULL; cf = cf->next)
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{
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if (cf->check_format (abfd))
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|
|
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{
|
2002-02-27 09:40:36 +08:00
|
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|
return (1);
|
1999-10-06 07:13:56 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
2002-02-27 09:40:36 +08:00
|
|
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|
return (0);
|
1999-10-06 07:13:56 +08:00
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
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/* Discard all vestiges of any previous core file and mark data and stack
|
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spaces as empty. */
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|
static void
|
2000-07-30 09:48:28 +08:00
|
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|
|
core_close (int quitting)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
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|
char *name;
|
|
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|
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|
if (core_bfd)
|
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{
|
2001-05-04 12:15:33 +08:00
|
|
|
|
inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */
|
1999-04-16 09:35:26 +08:00
|
|
|
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|
1999-04-27 02:34:20 +08:00
|
|
|
|
/* Clear out solib state while the bfd is still open. See
|
1999-07-08 04:19:36 +08:00
|
|
|
|
comments in clear_solib in solib.c. */
|
1999-04-27 02:34:20 +08:00
|
|
|
|
#ifdef CLEAR_SOLIB
|
|
|
|
|
CLEAR_SOLIB ();
|
|
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|
|
#endif
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
name = bfd_get_filename (core_bfd);
|
|
|
|
|
if (!bfd_close (core_bfd))
|
|
|
|
|
warning ("cannot close \"%s\": %s",
|
|
|
|
|
name, bfd_errmsg (bfd_get_error ()));
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (name);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
core_bfd = NULL;
|
|
|
|
|
if (core_ops.to_sections)
|
|
|
|
|
{
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (core_ops.to_sections);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
core_ops.to_sections = NULL;
|
|
|
|
|
core_ops.to_sections_end = NULL;
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-10-06 07:13:56 +08:00
|
|
|
|
core_vec = NULL;
|
2003-10-30 04:59:07 +08:00
|
|
|
|
core_gdbarch = NULL;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
2000-05-22 17:02:23 +08:00
|
|
|
|
static void
|
|
|
|
|
core_close_cleanup (void *ignore)
|
|
|
|
|
{
|
|
|
|
|
core_close (0/*ignored*/);
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#ifdef SOLIB_ADD
|
|
|
|
|
/* Stub function for catch_errors around shared library hacking. FROM_TTYP
|
|
|
|
|
is really an int * which points to from_tty. */
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
static int
|
2003-01-18 Andrew Cagney <ac131313@redhat.com>
* ada-valprint.c: Eliminate PTR.
* breakpoint.c, corelow.c, cris-tdep.c, dbxread.c: Ditto.
* defs.h, dve3900-rom.c, dwarf2read.c, dwarfread.c: Ditto.
* exec.c, hppa-tdep.c, hpread.c, infcmd.c, mdebugread.c: Ditto.
* objfiles.c, objfiles.h, ocd.c, remote-es.c: Ditto.
* remote-mips.c, remote-sds.c, remote-vx.c: Ditto.
* solib-svr4.c, solib.c, stack.c, symfile.c, symfile.h: Ditto.
* symmisc.c, v850ice.c, xcoffread.c, cli/cli-script.c: Ditto.
2003-01-18 23:55:53 +08:00
|
|
|
|
solib_add_stub (void *from_ttyp)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
2001-11-02 00:17:08 +08:00
|
|
|
|
SOLIB_ADD (NULL, *(int *) from_ttyp, ¤t_target, auto_solib_add);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
re_enable_breakpoints_in_shlibs ();
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
#endif /* SOLIB_ADD */
|
|
|
|
|
|
|
|
|
|
/* Look for sections whose names start with `.reg/' so that we can extract the
|
|
|
|
|
list of threads in a core file. */
|
|
|
|
|
|
|
|
|
|
static void
|
2003-01-18 Andrew Cagney <ac131313@redhat.com>
* ada-valprint.c: Eliminate PTR.
* breakpoint.c, corelow.c, cris-tdep.c, dbxread.c: Ditto.
* defs.h, dve3900-rom.c, dwarf2read.c, dwarfread.c: Ditto.
* exec.c, hppa-tdep.c, hpread.c, infcmd.c, mdebugread.c: Ditto.
* objfiles.c, objfiles.h, ocd.c, remote-es.c: Ditto.
* remote-mips.c, remote-sds.c, remote-vx.c: Ditto.
* solib-svr4.c, solib.c, stack.c, symfile.c, symfile.h: Ditto.
* symmisc.c, v850ice.c, xcoffread.c, cli/cli-script.c: Ditto.
2003-01-18 23:55:53 +08:00
|
|
|
|
add_to_thread_list (bfd *abfd, asection *asect, void *reg_sect_arg)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
int thread_id;
|
|
|
|
|
asection *reg_sect = (asection *) reg_sect_arg;
|
|
|
|
|
|
|
|
|
|
if (strncmp (bfd_section_name (abfd, asect), ".reg/", 5) != 0)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
thread_id = atoi (bfd_section_name (abfd, asect) + 5);
|
|
|
|
|
|
2001-05-04 12:15:33 +08:00
|
|
|
|
add_thread (pid_to_ptid (thread_id));
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
/* Warning, Will Robinson, looking at BFD private data! */
|
|
|
|
|
|
|
|
|
|
if (reg_sect != NULL
|
1999-07-08 04:19:36 +08:00
|
|
|
|
&& asect->filepos == reg_sect->filepos) /* Did we find .reg? */
|
2001-05-04 12:15:33 +08:00
|
|
|
|
inferior_ptid = pid_to_ptid (thread_id); /* Yes, make it current */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This routine opens and sets up the core file bfd. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
core_open (char *filename, int from_tty)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
const char *p;
|
|
|
|
|
int siggy;
|
|
|
|
|
struct cleanup *old_chain;
|
|
|
|
|
char *temp;
|
|
|
|
|
bfd *temp_bfd;
|
|
|
|
|
int ontop;
|
|
|
|
|
int scratch_chan;
|
2004-07-06 22:24:06 +08:00
|
|
|
|
int flags;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
target_preopen (from_tty);
|
|
|
|
|
if (!filename)
|
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
error (core_bfd ?
|
|
|
|
|
"No core file specified. (Use `detach' to stop debugging a core file.)"
|
|
|
|
|
: "No core file specified.");
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
filename = tilde_expand (filename);
|
|
|
|
|
if (filename[0] != '/')
|
|
|
|
|
{
|
|
|
|
|
temp = concat (current_directory, "/", filename, NULL);
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (filename);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
filename = temp;
|
|
|
|
|
}
|
|
|
|
|
|
2000-12-15 09:01:51 +08:00
|
|
|
|
old_chain = make_cleanup (xfree, filename);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
2004-07-06 22:24:06 +08:00
|
|
|
|
flags = O_BINARY | O_LARGEFILE;
|
|
|
|
|
if (write_files)
|
|
|
|
|
flags |= O_RDWR;
|
|
|
|
|
else
|
|
|
|
|
flags |= O_RDONLY;
|
|
|
|
|
scratch_chan = open (filename, flags, 0);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
if (scratch_chan < 0)
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
|
|
|
|
|
temp_bfd = bfd_fdopenr (filename, gnutarget, scratch_chan);
|
|
|
|
|
if (temp_bfd == NULL)
|
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
|
1999-10-06 07:13:56 +08:00
|
|
|
|
if (!bfd_check_format (temp_bfd, bfd_core) &&
|
|
|
|
|
!gdb_check_format (temp_bfd))
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
/* Do it after the err msg */
|
|
|
|
|
/* FIXME: should be checking for errors from bfd_close (for one thing,
|
1999-07-08 04:19:36 +08:00
|
|
|
|
on error it does not free all the storage associated with the
|
|
|
|
|
bfd). */
|
2000-05-16 10:43:39 +08:00
|
|
|
|
make_cleanup_bfd_close (temp_bfd);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
error ("\"%s\" is not a core dump: %s",
|
|
|
|
|
filename, bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Looks semi-reasonable. Toss the old core file and work on the new. */
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
discard_cleanups (old_chain); /* Don't free filename any more */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
unpush_target (&core_ops);
|
|
|
|
|
core_bfd = temp_bfd;
|
2000-05-22 17:02:23 +08:00
|
|
|
|
old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
2003-10-30 04:59:07 +08:00
|
|
|
|
/* FIXME: kettenis/20031023: This is very dangerous. The
|
|
|
|
|
CORE_GDBARCH that results from this call may very well be
|
|
|
|
|
different from CURRENT_GDBARCH. However, its methods may only
|
|
|
|
|
work if it is selected as the current architecture, because they
|
|
|
|
|
rely on swapped data (see gdbarch.c). We should get rid of that
|
|
|
|
|
swapped data. */
|
|
|
|
|
core_gdbarch = gdbarch_from_bfd (core_bfd);
|
|
|
|
|
|
1999-10-06 07:13:56 +08:00
|
|
|
|
/* Find a suitable core file handler to munch on core_bfd */
|
|
|
|
|
core_vec = sniff_core_bfd (core_bfd);
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
validate_files ();
|
|
|
|
|
|
|
|
|
|
/* Find the data section */
|
|
|
|
|
if (build_section_table (core_bfd, &core_ops.to_sections,
|
|
|
|
|
&core_ops.to_sections_end))
|
|
|
|
|
error ("\"%s\": Can't find sections: %s",
|
|
|
|
|
bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
|
2002-05-18 07:06:10 +08:00
|
|
|
|
/* If we have no exec file, try to set the architecture from the
|
|
|
|
|
core file. We don't do this unconditionally since an exec file
|
|
|
|
|
typically contains more information that helps us determine the
|
|
|
|
|
architecture than a core file. */
|
|
|
|
|
if (!exec_bfd)
|
|
|
|
|
set_gdbarch_from_file (core_bfd);
|
2000-04-27 23:33:01 +08:00
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
ontop = !push_target (&core_ops);
|
|
|
|
|
discard_cleanups (old_chain);
|
|
|
|
|
|
2004-05-26 00:04:07 +08:00
|
|
|
|
/* This is done first, before anything has a chance to query the
|
|
|
|
|
inferior for information such as symbols. */
|
|
|
|
|
observer_notify_inferior_created (&core_ops, from_tty);
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
p = bfd_core_file_failing_command (core_bfd);
|
|
|
|
|
if (p)
|
|
|
|
|
printf_filtered ("Core was generated by `%s'.\n", p);
|
|
|
|
|
|
|
|
|
|
siggy = bfd_core_file_failing_signal (core_bfd);
|
|
|
|
|
if (siggy > 0)
|
2000-06-04 09:58:49 +08:00
|
|
|
|
/* NOTE: target_signal_from_host() converts a target signal value
|
2000-10-24 06:49:29 +08:00
|
|
|
|
into gdb's internal signal value. Unfortunately gdb's internal
|
2000-06-04 09:58:49 +08:00
|
|
|
|
value is called ``target_signal'' and this function got the
|
|
|
|
|
name ..._from_host(). */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
printf_filtered ("Program terminated with signal %d, %s.\n", siggy,
|
2000-06-04 09:58:49 +08:00
|
|
|
|
target_signal_to_string (target_signal_from_host (siggy)));
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
/* Build up thread list from BFD sections. */
|
|
|
|
|
|
|
|
|
|
init_thread_list ();
|
|
|
|
|
bfd_map_over_sections (core_bfd, add_to_thread_list,
|
|
|
|
|
bfd_get_section_by_name (core_bfd, ".reg"));
|
|
|
|
|
|
|
|
|
|
if (ontop)
|
|
|
|
|
{
|
|
|
|
|
/* Fetch all registers from core file. */
|
|
|
|
|
target_fetch_registers (-1);
|
|
|
|
|
|
|
|
|
|
/* Add symbols and section mappings for any shared libraries. */
|
|
|
|
|
#ifdef SOLIB_ADD
|
1999-07-08 04:19:36 +08:00
|
|
|
|
catch_errors (solib_add_stub, &from_tty, (char *) 0,
|
1999-04-16 09:35:26 +08:00
|
|
|
|
RETURN_MASK_ALL);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Now, set up the frame cache, and print the top of stack. */
|
|
|
|
|
flush_cached_frames ();
|
2002-05-05 09:15:13 +08:00
|
|
|
|
select_frame (get_current_frame ());
|
2004-04-28 Andrew Cagney <cagney@redhat.com>
* stack.c (print_stack_frame_stub): Delete declaration.
(struct print_stack_frame_args, print_stack_frame)
(print_frame_info, print_frame): Replace "source" with print what.
Replace "print" with "print_level". Replace "args" with
"print_args".
* frame.h (show_and_print_stack_frame, print_stack_frame)
(print_frame_info): Update declarations.
* stack.c (select_and_print_frame, frame_command)
(current_frame_command, up_command, down_command): Update calls -
use get_selected_frame, pass "enum print_what" for source, do not
call frame_relative_level.
* mi/mi-cmd-stack.c (mi_cmd_stack_list_frames): Ditto.
* remote-rdp.c (remote_rdp_open): Ditto.
* remote-mips.c (common_open): Ditto.
* remote-e7000.c (e7000_start_remote): Ditto.
* ocd.c (ocd_start_remote): Ditto.
* mi/mi-main.c (mi_cmd_exec_return): Ditto.
* infrun.c (normal_stop): Ditto.
* inflow.c (kill_command): Ditto.
* infcmd.c (finish_command): Ditto.
* corelow.c (core_open): Ditto.
* tracepoint.c (finish_tfind_command): Ditto.
* thread.c (info_threads_command, info_threads_command)
(restore_current_thread, do_captured_thread_select): Ditto.
* ada-tasks.c (task_command): Ditto.
2004-04-29 00:36:25 +08:00
|
|
|
|
print_stack_frame (get_selected_frame (), 1, SRC_AND_LOC);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
warning (
|
1999-07-08 04:19:36 +08:00
|
|
|
|
"you won't be able to access this core file until you terminate\n\
|
1999-04-16 09:35:26 +08:00
|
|
|
|
your %s; do ``info files''", target_longname);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
core_detach (char *args, int from_tty)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
if (args)
|
|
|
|
|
error ("Too many arguments");
|
|
|
|
|
unpush_target (&core_ops);
|
|
|
|
|
reinit_frame_cache ();
|
|
|
|
|
if (from_tty)
|
|
|
|
|
printf_filtered ("No core file now.\n");
|
|
|
|
|
}
|
|
|
|
|
|
1999-12-08 10:51:13 +08:00
|
|
|
|
|
|
|
|
|
/* Try to retrieve registers from a section in core_bfd, and supply
|
|
|
|
|
them to core_vec->core_read_registers, as the register set numbered
|
|
|
|
|
WHICH.
|
|
|
|
|
|
2001-05-04 12:15:33 +08:00
|
|
|
|
If inferior_ptid is zero, do the single-threaded thing: look for a
|
|
|
|
|
section named NAME. If inferior_ptid is non-zero, do the
|
1999-12-08 10:51:13 +08:00
|
|
|
|
multi-threaded thing: look for a section named "NAME/PID", where
|
2001-05-04 12:15:33 +08:00
|
|
|
|
PID is the shortest ASCII decimal representation of inferior_ptid.
|
1999-12-08 10:51:13 +08:00
|
|
|
|
|
|
|
|
|
HUMAN_NAME is a human-readable name for the kind of registers the
|
|
|
|
|
NAME section contains, for use in error messages.
|
|
|
|
|
|
|
|
|
|
If REQUIRED is non-zero, print an error if the core file doesn't
|
|
|
|
|
have a section by the appropriate name. Otherwise, just do nothing. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
get_core_register_section (char *name,
|
|
|
|
|
int which,
|
|
|
|
|
char *human_name,
|
|
|
|
|
int required)
|
|
|
|
|
{
|
|
|
|
|
char section_name[100];
|
2003-11-06 10:52:28 +08:00
|
|
|
|
struct bfd_section *section;
|
1999-12-08 10:51:13 +08:00
|
|
|
|
bfd_size_type size;
|
|
|
|
|
char *contents;
|
|
|
|
|
|
2001-05-04 12:15:33 +08:00
|
|
|
|
if (PIDGET (inferior_ptid))
|
|
|
|
|
sprintf (section_name, "%s/%d", name, PIDGET (inferior_ptid));
|
1999-12-08 10:51:13 +08:00
|
|
|
|
else
|
|
|
|
|
strcpy (section_name, name);
|
|
|
|
|
|
|
|
|
|
section = bfd_get_section_by_name (core_bfd, section_name);
|
|
|
|
|
if (! section)
|
|
|
|
|
{
|
|
|
|
|
if (required)
|
|
|
|
|
warning ("Couldn't find %s registers in core file.\n", human_name);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
size = bfd_section_size (core_bfd, section);
|
|
|
|
|
contents = alloca (size);
|
|
|
|
|
if (! bfd_get_section_contents (core_bfd, section, contents,
|
|
|
|
|
(file_ptr) 0, size))
|
|
|
|
|
{
|
|
|
|
|
warning ("Couldn't read %s registers from `%s' section in core file.\n",
|
|
|
|
|
human_name, name);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2003-10-30 04:59:07 +08:00
|
|
|
|
if (core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
|
|
|
|
|
{
|
|
|
|
|
const struct regset *regset;
|
|
|
|
|
|
|
|
|
|
regset = gdbarch_regset_from_core_section (core_gdbarch, name, size);
|
|
|
|
|
if (regset == NULL)
|
|
|
|
|
{
|
|
|
|
|
if (required)
|
|
|
|
|
warning ("Couldn't recognize %s registers in core file.\n",
|
|
|
|
|
human_name);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
regset->supply_regset (regset, current_regcache, -1, contents, size);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
gdb_assert (core_vec);
|
2004-02-02 06:35:20 +08:00
|
|
|
|
core_vec->core_read_registers (contents, size, which,
|
1999-12-08 10:51:13 +08:00
|
|
|
|
((CORE_ADDR)
|
|
|
|
|
bfd_section_vma (core_bfd, section)));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
/* 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. */
|
|
|
|
|
|
|
|
|
|
/* We just get all the registers, so we don't use regno. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
get_core_registers (int regno)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
1999-12-08 10:51:13 +08:00
|
|
|
|
int status;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
2003-10-30 04:59:07 +08:00
|
|
|
|
if (!(core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
|
|
|
|
|
&& (core_vec == NULL || core_vec->core_read_registers == NULL))
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
fprintf_filtered (gdb_stderr,
|
1999-07-08 04:19:36 +08:00
|
|
|
|
"Can't fetch registers from this type of core file\n");
|
1999-04-16 09:35:26 +08:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
1999-12-08 10:51:13 +08:00
|
|
|
|
get_core_register_section (".reg", 0, "general-purpose", 1);
|
|
|
|
|
get_core_register_section (".reg2", 2, "floating-point", 0);
|
|
|
|
|
get_core_register_section (".reg-xfp", 3, "extended floating-point", 0);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
2002-11-07 23:31:31 +08:00
|
|
|
|
deprecated_registers_fetched ();
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
core_files_info (struct target_ops *t)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
print_section_info (t, core_bfd);
|
|
|
|
|
}
|
2004-02-02 06:35:20 +08:00
|
|
|
|
|
|
|
|
|
static LONGEST
|
|
|
|
|
core_xfer_partial (struct target_ops *ops, enum target_object object,
|
|
|
|
|
const char *annex, void *readbuf,
|
|
|
|
|
const void *writebuf, ULONGEST offset, LONGEST len)
|
|
|
|
|
{
|
|
|
|
|
switch (object)
|
|
|
|
|
{
|
|
|
|
|
case TARGET_OBJECT_MEMORY:
|
|
|
|
|
if (readbuf)
|
|
|
|
|
return (*ops->to_xfer_memory) (offset, readbuf, len, 0/*write*/,
|
|
|
|
|
NULL, ops);
|
|
|
|
|
if (writebuf)
|
|
|
|
|
return (*ops->to_xfer_memory) (offset, readbuf, len, 1/*write*/,
|
|
|
|
|
NULL, ops);
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
case TARGET_OBJECT_AUXV:
|
|
|
|
|
if (readbuf)
|
|
|
|
|
{
|
|
|
|
|
/* When the aux vector is stored in core file, BFD
|
|
|
|
|
represents this with a fake section called ".auxv". */
|
|
|
|
|
|
2004-02-14 12:41:33 +08:00
|
|
|
|
struct bfd_section *section;
|
2004-02-02 06:35:20 +08:00
|
|
|
|
bfd_size_type size;
|
|
|
|
|
char *contents;
|
|
|
|
|
|
|
|
|
|
section = bfd_get_section_by_name (core_bfd, ".auxv");
|
|
|
|
|
if (section == NULL)
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
size = bfd_section_size (core_bfd, section);
|
|
|
|
|
if (offset >= size)
|
|
|
|
|
return 0;
|
|
|
|
|
size -= offset;
|
|
|
|
|
if (size > len)
|
|
|
|
|
size = len;
|
2004-04-10 17:49:21 +08:00
|
|
|
|
if (size > 0
|
|
|
|
|
&& !bfd_get_section_contents (core_bfd, section, readbuf,
|
|
|
|
|
(file_ptr) offset, size))
|
2004-02-02 06:35:20 +08:00
|
|
|
|
{
|
|
|
|
|
warning ("Couldn't read NT_AUXV note in core file.");
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return size;
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
|
2004-04-10 17:49:21 +08:00
|
|
|
|
case TARGET_OBJECT_WCOOKIE:
|
|
|
|
|
if (readbuf)
|
|
|
|
|
{
|
|
|
|
|
/* When the StackGhost cookie is stored in core file, BFD
|
|
|
|
|
represents this with a fake section called ".wcookie". */
|
|
|
|
|
|
|
|
|
|
struct bfd_section *section;
|
|
|
|
|
bfd_size_type size;
|
|
|
|
|
char *contents;
|
|
|
|
|
|
|
|
|
|
section = bfd_get_section_by_name (core_bfd, ".wcookie");
|
|
|
|
|
if (section == NULL)
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
size = bfd_section_size (core_bfd, section);
|
|
|
|
|
if (offset >= size)
|
|
|
|
|
return 0;
|
|
|
|
|
size -= offset;
|
|
|
|
|
if (size > len)
|
|
|
|
|
size = len;
|
|
|
|
|
if (size > 0
|
|
|
|
|
&& !bfd_get_section_contents (core_bfd, section, readbuf,
|
|
|
|
|
(file_ptr) offset, size))
|
|
|
|
|
{
|
|
|
|
|
warning ("Couldn't read StackGhost cookie in core file.");
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return size;
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
|
2004-02-02 06:35:20 +08:00
|
|
|
|
default:
|
|
|
|
|
if (ops->beneath != NULL)
|
|
|
|
|
return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
|
|
|
|
|
readbuf, writebuf, offset, len);
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
/* If mourn is being called in all the right places, this could be say
|
|
|
|
|
`gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */
|
|
|
|
|
|
|
|
|
|
static int
|
2000-07-30 09:48:28 +08:00
|
|
|
|
ignore (CORE_ADDR addr, char *contents)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Okay, let's be honest: threads gleaned from a core file aren't
|
|
|
|
|
exactly lively, are they? On the other hand, if we don't claim
|
|
|
|
|
that each & every one is alive, then we don't get any of them
|
|
|
|
|
to appear in an "info thread" command, which is quite a useful
|
|
|
|
|
behaviour.
|
1999-07-08 04:19:36 +08:00
|
|
|
|
*/
|
1999-04-16 09:35:26 +08:00
|
|
|
|
static int
|
2001-05-04 12:15:33 +08:00
|
|
|
|
core_file_thread_alive (ptid_t tid)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Fill in core_ops with its defined operations and properties. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
init_core_ops (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
core_ops.to_shortname = "core";
|
|
|
|
|
core_ops.to_longname = "Local core dump file";
|
|
|
|
|
core_ops.to_doc =
|
|
|
|
|
"Use a core file as a target. Specify the filename of the core file.";
|
|
|
|
|
core_ops.to_open = core_open;
|
|
|
|
|
core_ops.to_close = core_close;
|
|
|
|
|
core_ops.to_attach = find_default_attach;
|
|
|
|
|
core_ops.to_detach = core_detach;
|
|
|
|
|
core_ops.to_fetch_registers = get_core_registers;
|
2004-02-02 06:35:20 +08:00
|
|
|
|
core_ops.to_xfer_partial = core_xfer_partial;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
core_ops.to_xfer_memory = xfer_memory;
|
|
|
|
|
core_ops.to_files_info = core_files_info;
|
|
|
|
|
core_ops.to_insert_breakpoint = ignore;
|
|
|
|
|
core_ops.to_remove_breakpoint = ignore;
|
|
|
|
|
core_ops.to_create_inferior = find_default_create_inferior;
|
|
|
|
|
core_ops.to_thread_alive = core_file_thread_alive;
|
|
|
|
|
core_ops.to_stratum = core_stratum;
|
|
|
|
|
core_ops.to_has_memory = 1;
|
|
|
|
|
core_ops.to_has_stack = 1;
|
|
|
|
|
core_ops.to_has_registers = 1;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
core_ops.to_magic = OPS_MAGIC;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* non-zero if we should not do the add_target call in
|
|
|
|
|
_initialize_corelow; not initialized (i.e., bss) so that
|
|
|
|
|
the target can initialize it (i.e., data) if appropriate.
|
|
|
|
|
This needs to be set at compile time because we don't know
|
|
|
|
|
for sure whether the target's initialize routine is called
|
|
|
|
|
before us or after us. */
|
|
|
|
|
int coreops_suppress_target;
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
_initialize_corelow (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
init_core_ops ();
|
|
|
|
|
|
|
|
|
|
if (!coreops_suppress_target)
|
|
|
|
|
add_target (&core_ops);
|
|
|
|
|
}
|