#!/bin/bash

# This file is part of memstomp.
#
# Copyright 2009 Lennart Poettering
# Copyright 2011 William Cohen
#
# memstomp is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# memstomp 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with memstomp. If not, see <http://www.gnu.org/licenses/>.

if ! TEMP=`getopt -o +dqhk --long help,quiet,debug-info,kill -n memstomp -- "$@"` ; then
    exit 1
fi

eval set -- "$TEMP"

debug_info=0

while : ; do
        case $1 in
                -k|--kill)
                        export MEMSTOMP_KILL=1
                        shift 1
                        ;;

                -d|--debug-info)
                        debug_info=1
                        shift 1
                        ;;

                -q|--quiet)
                        export MEMSTOMP_QUIET=1
                        shift 1
                        ;;

                -h|--help)
                        cat <<EOF
memstomp 0.1.4

Usage: memstomp [OPTIONS...] APPLICATION [ARGUMENTS...]

COMMANDS:
  -h, --help                      Show this help

OPTIONS:
  -d, --debug-info                Make use of debug information in stack traces
  -k, --kill                      Kill application when problem memcpy occurs
  -q, --quiet                     Be less verbose
EOF
                        exit 0
                        ;;
                --)
                        shift
                        break
                        ;;

                *)
                        echo "Parsing failed!" >&2
                        exit 1
                        ;;
        esac
done

shift $(($OPTIND-1))

if [ x"$1" = x ] ; then
        echo "Please specify an application to profile!" >&2
        exit 1
fi

if [ x"$LD_PRELOAD" = x ] ; then
        export LD_PRELOAD="libmemstomp.so"
else
        export LD_PRELOAD="$LD_PRELOAD:libmemstomp.so"
fi

if [ x"$debug_info" = x1 ] ; then
        export LD_PRELOAD="$LD_PRELOAD:libmemstomp-backtrace-symbols.so"
fi

exec "$@"