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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [bfd/] [corefile.c] - Blame information for rev 438

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1 330 jeremybenn
/* Core file generic interface routines for BFD.
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   Copyright 1990, 1991, 1992, 1993, 1994, 2000, 2001, 2002, 2003, 2005,
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   2007 Free Software Foundation, Inc.
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   Written by Cygnus Support.
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   This file is part of BFD, the Binary File Descriptor library.
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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 3 of the License, or
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   (at your option) any later version.
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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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   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., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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/*
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SECTION
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        Core files
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SUBSECTION
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        Core file functions
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DESCRIPTION
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        These are functions pertaining to core files.
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*/
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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/*
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FUNCTION
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        bfd_core_file_failing_command
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SYNOPSIS
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        const char *bfd_core_file_failing_command (bfd *abfd);
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DESCRIPTION
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        Return a read-only string explaining which program was running
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        when it failed and produced the core file @var{abfd}.
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*/
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const char *
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bfd_core_file_failing_command (bfd *abfd)
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{
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  if (abfd->format != bfd_core)
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    {
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      bfd_set_error (bfd_error_invalid_operation);
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      return NULL;
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    }
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  return BFD_SEND (abfd, _core_file_failing_command, (abfd));
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}
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/*
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FUNCTION
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        bfd_core_file_failing_signal
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SYNOPSIS
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        int bfd_core_file_failing_signal (bfd *abfd);
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DESCRIPTION
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        Returns the signal number which caused the core dump which
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        generated the file the BFD @var{abfd} is attached to.
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*/
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int
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bfd_core_file_failing_signal (bfd *abfd)
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{
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  if (abfd->format != bfd_core)
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    {
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      bfd_set_error (bfd_error_invalid_operation);
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      return 0;
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    }
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  return BFD_SEND (abfd, _core_file_failing_signal, (abfd));
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}
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/*
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FUNCTION
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        core_file_matches_executable_p
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SYNOPSIS
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        bfd_boolean core_file_matches_executable_p
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          (bfd *core_bfd, bfd *exec_bfd);
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DESCRIPTION
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        Return <<TRUE>> if the core file attached to @var{core_bfd}
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        was generated by a run of the executable file attached to
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        @var{exec_bfd}, <<FALSE>> otherwise.
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*/
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bfd_boolean
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core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
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{
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  if (core_bfd->format != bfd_core || exec_bfd->format != bfd_object)
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    {
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      bfd_set_error (bfd_error_wrong_format);
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      return FALSE;
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    }
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  return BFD_SEND (core_bfd, _core_file_matches_executable_p,
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                   (core_bfd, exec_bfd));
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}
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/*
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FUNCTION
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        generic_core_file_matches_executable_p
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SYNOPSIS
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        bfd_boolean generic_core_file_matches_executable_p
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          (bfd *core_bfd, bfd *exec_bfd);
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DESCRIPTION
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        Return TRUE if the core file attached to @var{core_bfd}
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        was generated by a run of the executable file attached
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        to @var{exec_bfd}.  The match is based on executable
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        basenames only.
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        Note: When not able to determine the core file failing
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        command or the executable name, we still return TRUE even
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        though we're not sure that core file and executable match.
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        This is to avoid generating a false warning in situations
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        where we really don't know whether they match or not.
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*/
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bfd_boolean
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generic_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
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{
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  char *exec;
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  char *core;
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  char *last_slash;
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  if (exec_bfd == NULL || core_bfd == NULL)
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    return TRUE;
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  /* The cast below is to avoid a compiler warning due to the assignment
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     of the const char * returned by bfd_core_file_failing_command to a
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     non-const char *.  In this case, the assignement does not lead to
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     breaking the const, as we're only reading the string.  */
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  core = (char *) bfd_core_file_failing_command (core_bfd);
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  if (core == NULL)
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    return TRUE;
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  exec = bfd_get_filename (exec_bfd);
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  if (exec == NULL)
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    return TRUE;
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  last_slash = strrchr (core, '/');
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  if (last_slash != NULL)
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    core = last_slash + 1;
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  last_slash = strrchr (exec, '/');
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  if (last_slash != NULL)
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    exec = last_slash + 1;
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  return strcmp (exec, core) == 0;
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}
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