#!/bin/sh

#GDB=...
#XSERVER=...

ARGS=$*
PID=$$

test -z "$GDB" && GDB=gdb
test -z "$XSERVER" && XSERVER=/usr/local/lib/xorg/Xorg

cat > /tmp/.dbgfile.$PID << HERE
file $XSERVER
set confirm off
set args $ARGS
handle SIGUSR1 nostop
handle SIGUSR2 nostop
handle SIGPIPE nostop
run
bt full
cont
quit
HERE

$GDB --quiet --command=/tmp/.dbgfile.$PID &> /tmp/gdb_log.$PID

rm -f /tmp/.dbgfile.$PID
echo "Log written to: /tmp/gdb_log.$PID"