#!/bin/bash

# This file is part of mutrace.
#
# Copyright 2009 Lennart Poettering
#
# mutrace 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.
#
# mutrace 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 mutrace. If not, see <http://www.gnu.org/licenses/>.

if ! TEMP=`getopt -o +ardh --long hash-size:,frames:,locked-min:,owner-changed-min:,contended-min:,max:,trap,help,all,debug-info -n mutrace -- "$@"` ; then
    exit 1
fi

eval set -- "$TEMP"

debug_info=0

while : ; do
        case $1 in
                --hash-size)
                        export MUTRACE_HASH_SIZE="$2"
                        shift 2
                        ;;

                --frames)
                        export MUTRACE_FRAMES="$2"
                        shift 2
                        ;;

                --locked-min)
                        export MUTRACE_LOCKED_MIN="$2"
                        shift 2
                        ;;

                --owner-changed-min)
                        export MUTRACE_OWNER_CHANGED_MIN="$2"
                        shift 2
                        ;;

                --contended-min)
                        export MUTRACE_CONTENDED_MIN="$2"
                        shift 2
                        ;;

                --max)
                        export MUTRACE_MAX="$2"
                        shift 2
                        ;;

                --trap)
                        export MUTRACE_TRAP=1
                        shift 1
                        ;;

                -r|--track-rt)
                        export MUTRACE_TRACK_RT=1
                        shift 1
                        ;;

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

                -a|--all)
                        export MUTRACE_LOCKED_MIN=0
                        export MUTRACE_OWNER_CHANGED_MIN=0
                        export MUTRACE_CONTENDED_MIN=0
                        export MUTRACE_MAX=0
                        shift 1
                        ;;

                -h|--help)
                        cat <<EOF
@PACKAGE_STRING@

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

COMMANDS:
  -h, --help                      Show this help

OPTIONS:
      --hash-size=INTEGER         Set size of mutex hash table
      --frames=INTEGER            Set number of frames to show in stack traces
  -d, --debug-info                Make use of debug information in stack traces
      --max=INTEGER               Show this many mutexes at maximum

      --locked-min=INTEGER        Only show mutexes that have been locked at
                                  least this often
      --owner-changed-min=INTEGER Only show mutexes whose owning thread changed
                                  at least this often
      --contended-min=INTEGER     Only show mutexes which have been contended
                                  at least this often
      --all                       Show all mutexes, overrides the values of the
                                  three values above

  -r, --track-rt                  Track for each mutex if it was accessed from
                                  a realtime thread
      --trap                      Trigger a debugger trap each time a mutex
                                  inconsistency is detected (for use in
                                  conjunction with gdb)
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"$LD_PRELOAD" = x ] ; then
        export LD_PRELOAD="libmutrace.so"
else
        export LD_PRELOAD="$LD_PRELOAD:libmutrace.so"
fi

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

exec "$@"