1999-04-16 03:35:26 +02:00
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/* Core dump and executable file functions below target vector, for GDB.
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2000-06-04 03:58:49 +02:00
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Copyright 1986, 87, 89, 91, 92, 93, 94, 95, 96, 97, 1998, 2000
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1999-04-16 03:35:26 +02:00
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Free Software Foundation, Inc.
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1999-07-07 22:19:36 +02:00
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This file is part of GDB.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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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 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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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 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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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 03:35:26 +02:00
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#include "defs.h"
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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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1999-07-07 22:19:36 +02:00
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#include "frame.h" /* required by inferior.h */
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1999-04-16 03:35:26 +02:00
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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"
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2000-08-27 06:21:35 +02:00
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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1999-04-16 03:35:26 +02:00
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/* List of all available core_fns. On gdb startup, each core file register
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reader calls add_core_fns() to register information on each core format it
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is prepared to read. */
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static struct core_fns *core_file_fns = NULL;
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1999-10-06 01:13:56 +02:00
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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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2000-05-28 03:12:42 +02:00
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static void core_files_info (struct target_ops *);
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1999-04-16 03:35:26 +02:00
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#ifdef SOLIB_ADD
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2000-05-28 03:12:42 +02:00
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static int solib_add_stub (PTR);
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1999-04-16 03:35:26 +02:00
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#endif
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2000-05-28 03:12:42 +02:00
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static struct core_fns *sniff_core_bfd (bfd *);
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1999-10-06 01:13:56 +02:00
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2000-05-28 03:12:42 +02:00
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static boolean gdb_check_format (bfd *);
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1999-10-06 01:13:56 +02:00
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2000-05-28 03:12:42 +02:00
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static void core_open (char *, int);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void core_detach (char *, int);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void core_close (int);
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1999-04-16 03:35:26 +02:00
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2000-05-22 11:02:23 +02:00
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static void core_close_cleanup (void *ignore);
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2000-05-28 03:12:42 +02:00
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static void get_core_registers (int);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void add_to_thread_list (bfd *, asection *, PTR);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static int ignore (CORE_ADDR, char *);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static char *core_file_to_sym_file (char *);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static int core_file_thread_alive (int tid);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void init_core_ops (void);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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void _initialize_corelow (void);
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1999-04-16 03:35:26 +02:00
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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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2000-07-30 03:48:28 +02:00
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add_core_fns (struct core_fns *cf)
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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cf->next = core_file_fns;
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1999-04-16 03:35:26 +02:00
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core_file_fns = cf;
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}
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1999-10-06 01:13:56 +02:00
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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
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2000-07-30 03:48:28 +02:00
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default_core_sniffer (struct core_fns *our_fns, bfd *abfd)
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1999-10-06 01:13:56 +02:00
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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
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2000-09-02 01:41:20 +02:00
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list if nothing matches. Returns pointer to set that is
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1999-10-06 01:13:56 +02:00
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selected. */
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static struct core_fns *
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2000-07-30 03:48:28 +02:00
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sniff_core_bfd (bfd *abfd)
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1999-10-06 01:13:56 +02:00
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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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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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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
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2000-07-30 03:48:28 +02:00
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default_check_format (bfd *abfd)
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1999-10-06 01:13:56 +02:00
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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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static boolean
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2000-07-30 03:48:28 +02:00
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gdb_check_format (bfd *abfd)
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1999-10-06 01:13:56 +02:00
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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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return (true);
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}
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}
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return (false);
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}
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1999-04-16 03:35:26 +02:00
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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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/* ARGSUSED */
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static void
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2000-07-30 03:48:28 +02:00
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core_close (int quitting)
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1999-04-16 03:35:26 +02:00
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{
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char *name;
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if (core_bfd)
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{
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inferior_pid = 0; /* Avoid confusion from thread stuff */
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1999-04-26 20:34:20 +02:00
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/* Clear out solib state while the bfd is still open. See
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1999-07-07 22:19:36 +02:00
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comments in clear_solib in solib.c. */
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1999-04-26 20:34:20 +02:00
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#ifdef CLEAR_SOLIB
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CLEAR_SOLIB ();
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#endif
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1999-04-16 03:35:26 +02:00
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name = bfd_get_filename (core_bfd);
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if (!bfd_close (core_bfd))
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warning ("cannot close \"%s\": %s",
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name, bfd_errmsg (bfd_get_error ()));
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free (name);
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core_bfd = NULL;
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if (core_ops.to_sections)
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{
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1999-07-07 22:19:36 +02:00
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free ((PTR) core_ops.to_sections);
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1999-04-16 03:35:26 +02:00
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core_ops.to_sections = NULL;
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core_ops.to_sections_end = NULL;
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}
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}
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1999-10-06 01:13:56 +02:00
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core_vec = NULL;
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1999-04-16 03:35:26 +02:00
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}
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2000-05-22 11:02:23 +02:00
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static void
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core_close_cleanup (void *ignore)
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{
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core_close (0/*ignored*/);
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}
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1999-04-16 03:35:26 +02:00
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#ifdef SOLIB_ADD
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/* Stub function for catch_errors around shared library hacking. FROM_TTYP
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is really an int * which points to from_tty. */
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1999-07-07 22:19:36 +02:00
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static int
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2000-07-30 03:48:28 +02:00
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solib_add_stub (PTR from_ttyp)
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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SOLIB_ADD (NULL, *(int *) from_ttyp, ¤t_target);
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1999-04-16 03:35:26 +02:00
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re_enable_breakpoints_in_shlibs ();
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return 0;
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}
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#endif /* SOLIB_ADD */
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/* Look for sections whose names start with `.reg/' so that we can extract the
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list of threads in a core file. */
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static void
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2000-07-30 03:48:28 +02:00
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add_to_thread_list (bfd *abfd, asection *asect, PTR reg_sect_arg)
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1999-04-16 03:35:26 +02:00
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{
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int thread_id;
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asection *reg_sect = (asection *) reg_sect_arg;
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if (strncmp (bfd_section_name (abfd, asect), ".reg/", 5) != 0)
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return;
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thread_id = atoi (bfd_section_name (abfd, asect) + 5);
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add_thread (thread_id);
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/* Warning, Will Robinson, looking at BFD private data! */
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if (reg_sect != NULL
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1999-07-07 22:19:36 +02:00
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&& asect->filepos == reg_sect->filepos) /* Did we find .reg? */
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1999-04-16 03:35:26 +02:00
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inferior_pid = thread_id; /* Yes, make it current */
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}
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/* This routine opens and sets up the core file bfd. */
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static void
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2000-07-30 03:48:28 +02:00
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core_open (char *filename, int from_tty)
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1999-04-16 03:35:26 +02:00
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{
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const char *p;
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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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int scratch_chan;
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target_preopen (from_tty);
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if (!filename)
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{
|
1999-07-07 22:19:36 +02:00
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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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1999-04-16 03:35:26 +02:00
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}
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filename = tilde_expand (filename);
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if (filename[0] != '/')
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{
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temp = concat (current_directory, "/", filename, NULL);
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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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|
2000-08-27 06:21:35 +02:00
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scratch_chan = open (filename, O_BINARY | ( write_files ? O_RDWR : O_RDONLY ), 0);
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1999-04-16 03:35:26 +02:00
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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, gnutarget, scratch_chan);
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if (temp_bfd == NULL)
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perror_with_name (filename);
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|
|
1999-10-06 01:13:56 +02:00
|
|
|
|
if (!bfd_check_format (temp_bfd, bfd_core) &&
|
|
|
|
|
!gdb_check_format (temp_bfd))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* Do it after the err msg */
|
|
|
|
|
/* FIXME: should be checking for errors from bfd_close (for one thing,
|
1999-07-07 22:19:36 +02:00
|
|
|
|
on error it does not free all the storage associated with the
|
|
|
|
|
bfd). */
|
2000-05-16 04:43:39 +02:00
|
|
|
|
make_cleanup_bfd_close (temp_bfd);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
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. */
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
discard_cleanups (old_chain); /* Don't free filename any more */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
unpush_target (&core_ops);
|
|
|
|
|
core_bfd = temp_bfd;
|
2000-05-22 11:02:23 +02:00
|
|
|
|
old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-10-06 01:13:56 +02:00
|
|
|
|
/* Find a suitable core file handler to munch on core_bfd */
|
|
|
|
|
core_vec = sniff_core_bfd (core_bfd);
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
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 ()));
|
|
|
|
|
|
2000-04-27 17:33:01 +02:00
|
|
|
|
set_gdbarch_from_file (core_bfd);
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
ontop = !push_target (&core_ops);
|
|
|
|
|
discard_cleanups (old_chain);
|
|
|
|
|
|
|
|
|
|
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 03:58:49 +02:00
|
|
|
|
/* NOTE: target_signal_from_host() converts a target signal value
|
2000-10-24 00:49:29 +02:00
|
|
|
|
into gdb's internal signal value. Unfortunately gdb's internal
|
2000-06-04 03:58:49 +02:00
|
|
|
|
value is called ``target_signal'' and this function got the
|
|
|
|
|
name ..._from_host(). */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
printf_filtered ("Program terminated with signal %d, %s.\n", siggy,
|
2000-06-04 03:58:49 +02:00
|
|
|
|
target_signal_to_string (target_signal_from_host (siggy)));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* 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
|
1999-07-07 22:19:36 +02:00
|
|
|
|
catch_errors (solib_add_stub, &from_tty, (char *) 0,
|
1999-04-16 03:35:26 +02:00
|
|
|
|
RETURN_MASK_ALL);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Now, set up the frame cache, and print the top of stack. */
|
|
|
|
|
flush_cached_frames ();
|
|
|
|
|
select_frame (get_current_frame (), 0);
|
|
|
|
|
print_stack_frame (selected_frame, selected_frame_level, 1);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
warning (
|
1999-07-07 22:19:36 +02:00
|
|
|
|
"you won't be able to access this core file until you terminate\n\
|
1999-04-16 03:35:26 +02:00
|
|
|
|
your %s; do ``info files''", target_longname);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
core_detach (char *args, int from_tty)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
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 03:51:13 +01:00
|
|
|
|
|
|
|
|
|
/* 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.
|
|
|
|
|
|
|
|
|
|
If inferior_pid is zero, do the single-threaded thing: look for a
|
|
|
|
|
section named NAME. If inferior_pid is non-zero, do the
|
|
|
|
|
multi-threaded thing: look for a section named "NAME/PID", where
|
|
|
|
|
PID is the shortest ASCII decimal representation of inferior_pid.
|
|
|
|
|
|
|
|
|
|
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];
|
|
|
|
|
sec_ptr section;
|
|
|
|
|
bfd_size_type size;
|
|
|
|
|
char *contents;
|
|
|
|
|
|
|
|
|
|
if (inferior_pid)
|
|
|
|
|
sprintf (section_name, "%s/%d", name, inferior_pid);
|
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
core_vec->core_read_registers (contents, size, which,
|
|
|
|
|
((CORE_ADDR)
|
|
|
|
|
bfd_section_vma (core_bfd, section)));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* 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. */
|
|
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
get_core_registers (int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-12-08 03:51:13 +01:00
|
|
|
|
int status;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-12-08 03:51:13 +01:00
|
|
|
|
if (core_vec == NULL
|
|
|
|
|
|| core_vec->core_read_registers == NULL)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
fprintf_filtered (gdb_stderr,
|
1999-07-07 22:19:36 +02:00
|
|
|
|
"Can't fetch registers from this type of core file\n");
|
1999-04-16 03:35:26 +02:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
1999-12-08 03:51:13 +01:00
|
|
|
|
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 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
registers_fetched ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static char *
|
2000-07-30 03:48:28 +02:00
|
|
|
|
core_file_to_sym_file (char *core)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
CONST char *failing_command;
|
|
|
|
|
char *p;
|
|
|
|
|
char *temp;
|
|
|
|
|
bfd *temp_bfd;
|
|
|
|
|
int scratch_chan;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (!core)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
error ("No core file specified.");
|
|
|
|
|
|
|
|
|
|
core = tilde_expand (core);
|
|
|
|
|
if (core[0] != '/')
|
|
|
|
|
{
|
|
|
|
|
temp = concat (current_directory, "/", core, NULL);
|
|
|
|
|
core = temp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
scratch_chan = open (core, write_files ? O_RDWR : O_RDONLY, 0);
|
|
|
|
|
if (scratch_chan < 0)
|
|
|
|
|
perror_with_name (core);
|
|
|
|
|
|
|
|
|
|
temp_bfd = bfd_fdopenr (core, gnutarget, scratch_chan);
|
|
|
|
|
if (temp_bfd == NULL)
|
|
|
|
|
perror_with_name (core);
|
|
|
|
|
|
|
|
|
|
if (!bfd_check_format (temp_bfd, bfd_core))
|
|
|
|
|
{
|
|
|
|
|
/* Do it after the err msg */
|
|
|
|
|
/* FIXME: should be checking for errors from bfd_close (for one thing,
|
1999-07-07 22:19:36 +02:00
|
|
|
|
on error it does not free all the storage associated with the
|
|
|
|
|
bfd). */
|
2000-05-16 04:43:39 +02:00
|
|
|
|
make_cleanup_bfd_close (temp_bfd);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
error ("\"%s\" is not a core dump: %s",
|
|
|
|
|
core, bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Find the data section */
|
|
|
|
|
if (build_section_table (temp_bfd, &core_ops.to_sections,
|
|
|
|
|
&core_ops.to_sections_end))
|
|
|
|
|
error ("\"%s\": Can't find sections: %s",
|
|
|
|
|
bfd_get_filename (temp_bfd), bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
|
|
|
|
|
failing_command = bfd_core_file_failing_command (temp_bfd);
|
|
|
|
|
|
|
|
|
|
bfd_close (temp_bfd);
|
|
|
|
|
|
|
|
|
|
/* If we found a filename, remember that it is probably saved
|
|
|
|
|
relative to the executable that created it. If working directory
|
|
|
|
|
isn't there now, we may not be able to find the executable. Rather
|
|
|
|
|
than trying to be sauve about finding it, just check if the file
|
|
|
|
|
exists where we are now. If not, then punt and tell our client
|
|
|
|
|
we couldn't find the sym file.
|
1999-07-07 22:19:36 +02:00
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
|
|
|
p = (char *) failing_command;
|
|
|
|
|
if ((p != NULL) && (access (p, F_OK) != 0))
|
|
|
|
|
p = NULL;
|
|
|
|
|
|
|
|
|
|
return p;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
core_files_info (struct target_ops *t)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
print_section_info (t, core_bfd);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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 03:48:28 +02:00
|
|
|
|
ignore (CORE_ADDR addr, char *contents)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
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.
|
1999-07-07 22:19:36 +02:00
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
|
|
|
static int
|
2000-07-30 03:48:28 +02:00
|
|
|
|
core_file_thread_alive (int tid)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Fill in core_ops with its defined operations and properties. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
init_core_ops (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
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_require_attach = find_default_require_attach;
|
|
|
|
|
core_ops.to_detach = core_detach;
|
|
|
|
|
core_ops.to_require_detach = find_default_require_detach;
|
|
|
|
|
core_ops.to_fetch_registers = get_core_registers;
|
|
|
|
|
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_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
|
|
|
|
|
core_ops.to_thread_alive = core_file_thread_alive;
|
|
|
|
|
core_ops.to_core_file_to_sym_file = core_file_to_sym_file;
|
|
|
|
|
core_ops.to_stratum = core_stratum;
|
|
|
|
|
core_ops.to_has_memory = 1;
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|
|
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|
core_ops.to_has_stack = 1;
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|
|
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core_ops.to_has_registers = 1;
|
1999-07-07 22:19:36 +02:00
|
|
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|
core_ops.to_magic = OPS_MAGIC;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
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|
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|
/* 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 03:48:28 +02:00
|
|
|
|
_initialize_corelow (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
init_core_ops ();
|
|
|
|
|
|
|
|
|
|
if (!coreops_suppress_target)
|
|
|
|
|
add_target (&core_ops);
|
|
|
|
|
}
|