190 lines
4.5 KiB
C
190 lines
4.5 KiB
C
/* Core file generic interface routines for BFD.
|
|
Copyright (C) 1990-2022 Free Software Foundation, Inc.
|
|
Written by Cygnus Support.
|
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/*
|
|
SECTION
|
|
Core files
|
|
|
|
SUBSECTION
|
|
Core file functions
|
|
|
|
DESCRIPTION
|
|
These are functions pertaining to core files.
|
|
*/
|
|
|
|
#include "sysdep.h"
|
|
#include "bfd.h"
|
|
#include "libbfd.h"
|
|
|
|
/*
|
|
FUNCTION
|
|
bfd_core_file_failing_command
|
|
|
|
SYNOPSIS
|
|
const char *bfd_core_file_failing_command (bfd *abfd);
|
|
|
|
DESCRIPTION
|
|
Return a read-only string explaining which program was running
|
|
when it failed and produced the core file @var{abfd}.
|
|
|
|
*/
|
|
|
|
const char *
|
|
bfd_core_file_failing_command (bfd *abfd)
|
|
{
|
|
if (abfd->format != bfd_core)
|
|
{
|
|
bfd_set_error (bfd_error_invalid_operation);
|
|
return NULL;
|
|
}
|
|
return BFD_SEND (abfd, _core_file_failing_command, (abfd));
|
|
}
|
|
|
|
/*
|
|
FUNCTION
|
|
bfd_core_file_failing_signal
|
|
|
|
SYNOPSIS
|
|
int bfd_core_file_failing_signal (bfd *abfd);
|
|
|
|
DESCRIPTION
|
|
Returns the signal number which caused the core dump which
|
|
generated the file the BFD @var{abfd} is attached to.
|
|
*/
|
|
|
|
int
|
|
bfd_core_file_failing_signal (bfd *abfd)
|
|
{
|
|
if (abfd->format != bfd_core)
|
|
{
|
|
bfd_set_error (bfd_error_invalid_operation);
|
|
return 0;
|
|
}
|
|
return BFD_SEND (abfd, _core_file_failing_signal, (abfd));
|
|
}
|
|
|
|
/*
|
|
FUNCTION
|
|
bfd_core_file_pid
|
|
|
|
SYNOPSIS
|
|
int bfd_core_file_pid (bfd *abfd);
|
|
|
|
DESCRIPTION
|
|
|
|
Returns the PID of the process the core dump the BFD
|
|
@var{abfd} is attached to was generated from.
|
|
*/
|
|
|
|
int
|
|
bfd_core_file_pid (bfd *abfd)
|
|
{
|
|
if (abfd->format != bfd_core)
|
|
{
|
|
bfd_set_error (bfd_error_invalid_operation);
|
|
return 0;
|
|
}
|
|
return BFD_SEND (abfd, _core_file_pid, (abfd));
|
|
}
|
|
|
|
|
|
/*
|
|
FUNCTION
|
|
core_file_matches_executable_p
|
|
|
|
SYNOPSIS
|
|
bool core_file_matches_executable_p
|
|
(bfd *core_bfd, bfd *exec_bfd);
|
|
|
|
DESCRIPTION
|
|
Return <<TRUE>> if the core file attached to @var{core_bfd}
|
|
was generated by a run of the executable file attached to
|
|
@var{exec_bfd}, <<FALSE>> otherwise.
|
|
*/
|
|
|
|
bool
|
|
core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
|
|
{
|
|
if (core_bfd->format != bfd_core || exec_bfd->format != bfd_object)
|
|
{
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return false;
|
|
}
|
|
|
|
return BFD_SEND (core_bfd, _core_file_matches_executable_p,
|
|
(core_bfd, exec_bfd));
|
|
}
|
|
|
|
/*
|
|
FUNCTION
|
|
generic_core_file_matches_executable_p
|
|
|
|
SYNOPSIS
|
|
bool generic_core_file_matches_executable_p
|
|
(bfd *core_bfd, bfd *exec_bfd);
|
|
|
|
DESCRIPTION
|
|
Return TRUE if the core file attached to @var{core_bfd}
|
|
was generated by a run of the executable file attached
|
|
to @var{exec_bfd}. The match is based on executable
|
|
basenames only.
|
|
|
|
Note: When not able to determine the core file failing
|
|
command or the executable name, we still return TRUE even
|
|
though we're not sure that core file and executable match.
|
|
This is to avoid generating a false warning in situations
|
|
where we really don't know whether they match or not.
|
|
*/
|
|
|
|
bool
|
|
generic_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
|
|
{
|
|
const char *exec;
|
|
const char *core;
|
|
const char *last_slash;
|
|
|
|
if (exec_bfd == NULL || core_bfd == NULL)
|
|
return true;
|
|
|
|
/* The cast below is to avoid a compiler warning due to the assignment
|
|
of the const char * returned by bfd_core_file_failing_command to a
|
|
non-const char *. In this case, the assignement does not lead to
|
|
breaking the const, as we're only reading the string. */
|
|
|
|
core = bfd_core_file_failing_command (core_bfd);
|
|
if (core == NULL)
|
|
return true;
|
|
|
|
exec = bfd_get_filename (exec_bfd);
|
|
if (exec == NULL)
|
|
return true;
|
|
|
|
last_slash = strrchr (core, '/');
|
|
if (last_slash != NULL)
|
|
core = last_slash + 1;
|
|
|
|
last_slash = strrchr (exec, '/');
|
|
if (last_slash != NULL)
|
|
exec = last_slash + 1;
|
|
|
|
return filename_cmp (exec, core) == 0;
|
|
}
|
|
|