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Re: [PATCH] gcore command script
- From: Michael Snyder <msnyder at redhat dot com>
- To: Elena Zannoni <ezannoni at redhat dot com>
- Cc: gdb-patches at sources dot redhat dot com
- Date: Thu, 17 Apr 2003 10:41:19 -0700
- Subject: Re: [PATCH] gcore command script
- Organization: Red Hat, Inc.
- References: <16030.42551.529787.466304@localhost.redhat.com>
Elena Zannoni wrote:
>
> This is a script that can be used to generate a core file for a given
> process. It works by invoking gdb on the process, and using the gcore
> command.
>
> It was originally written by Michael Snyder, I think.
Michael Snyder and Karen Bennet.
> I picked the name gdb_gcore.sh. Seemed right at the moment.
>
> On a side note, should we have a 'scripts' subdirectory in gdb?
Seems like we're getting to that point...
> --- /dev/null Thu Apr 11 10:25:15 2002
> +++ src/gdb/gdb_gcore.sh Mon Mar 31 17:28:28 2003
> @@ -0,0 +1,81 @@
> +#!/bin/sh
> +
> +# Copyright 2003 Free Software Foundation, Inc.
> +
> +# 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> +
> +# Please email any bugs, comments, and/or additions to this file to:
> +# bug-gdb at prep dot ai dot mit dot edu
> +
> +#
> +# gdb_gcore.sh
> +# Script to generate a core file of a running program.
> +# It starts up gdb, attaches to the given PID and invokes the gcore command.
> +#
> +
> +if [ "$#" -eq "0" ]
> +then
> + echo "usage: gcore [-o filename] pid"
> + exit 2
> +fi
> +
> +# Need to check for -o option, but set default basename to "core".
> +name=core
> +
> +if [ "$1" = "-o" ]
> +then
> + if [ "$#" -lt "3" ]
> + then
> + # Not enough arguments.
> + echo "usage: gcore [-o filename] pid"
> + exit 2
> + fi
> + name=$2
> +
> + # Shift over to start of pid list
> + shift; shift
> +fi
> +
> +# Initialise return code.
> +rc=0
> +
> +# Loop through pids
> +for pid in $*
> +do
> + # Write gdb script for pid $pid.
> +
> + # Avoid need for temporary files by using funky "here
> + # document" feature of sh.
> +
> + /usr/bin/gdb > /dev/null << EOF
> + attach $pid
> + gcore $name.$pid
> + detach
> + quit
> +EOF
> +
> + if [ -r $name.$pid ] ; then
> + rc=0
> + else
> + echo gcore: failed to create $name.$pid
> + rc=1
> + break
> + fi
> +
> +
> +done
> +
> +exit $rc
> +