#!/bin/sh

# we want everything on stderr, so the program is not disturbed
exec 1>&2

PID=$1
PROG=$2

TMPFILE=/tmp/gdb.$$
cat << EOF  > $TMPFILE
set height 1000
bt full
quit
EOF

gdb -batch -x $TMPFILE $PROG $PID < /dev/null 
/bin/rm -f $TMPFILE