[PATCH] gcore command script

[PATCH] gcore command script

[Elena Zannoni]

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.

I picked the name gdb_gcore.sh. Seemed right at the moment. 

On a side note, should we have a 'scripts' subdirectory in gdb?

elena


--- /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@prep.ai.mit.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
+

Re: [PATCH] gcore command script

[Michael Snyder]

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@prep.ai.mit.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
> +

Re: [PATCH] gcore command script

[Elena Zannoni]

Michael Snyder writes:
 > 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.
 >  

ok.
2003-04-17  Michael Snyder  <msnyder@redhat.com>
	    Karen Bennet  <bennet@redhat.com>

	Committed by Elena Zannoni  <ezannoni@redhat.com>
	* gdb_gcore.sh: New script to create a core dump of a process.


 > > 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...
 > 

hmmm, I'll let this stand as it is right now. There are surely
Makefile/configure changes needed as well.

elena