#!/bin/sh

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

PID=$1
TMPFILE=/tmp/gdb.$$
cat << EOF  > $TMPFILE
set height 0
bt full
thread apply all bt full
quit
EOF
gdb -n -batch -x $TMPFILE --pid $PID < /dev/null 2>&1
/bin/rm -f $TMPFILE