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flightgear/scripts/debug/debug-fgfs

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#!/usr/bin/bash
# $Id$
#
#
# To use this script you need
# - a Linux 2.4 system with libc 2.2.* and at least XFree86 4.1
# - the valgrind debugger (http://developer.kde.org/~sewardj/)
# - lots of memory (RAM + swap space > 600MB!) and
# - a fast computer =or= a lot of patience.
#
# It is useful (but not required) to compile FlightGear without
# any optimizations (-O0 without -funroll-loops etc.). Otherwise
# the debug messages might not seem to make sense in some cases.
#
# The sample suppression file is designed for a SuSE 7.1 system
# with Linux 2.4.18, XFree86 4.2.0 and a 3dfx card. Don't use it
# as it is, but create your own! You will likely have different
# libraries with different bugs.
#
# If you have problems with valgrind and FlightGear, don't bother
# the valgrind author -- ask on the flightgear-devel list first!
#
#
#
# adapt the following two entries to your needs:
#
fgfs="../FlightGear/src/Main/fgfs"
opt="--disable-game-mode --disable-fullscreen --fdm=magic"
gdb="--gdb-attach=yes"
cmd=
extra=
while true; do
case "$1" in
-h|--help) cat <<-EOF
debug [-r] [-g] [-i] [-b] [-c] [-x] [-h]
-r run fgfs
-g run fgfs with gdb
-i interactive valgrind run (default)
-b valgrind batch run
-c start gdb with most recent core dump
-x add some extra pedantic valgrind parameters
-h show this help screen
EOF
exit 0
;;
-r) cmd="$fgfs $opt" ;;
-g) cmd="gdb -x .gdbinit $fgfs" ;;
-i) cmd=""; gdb="" ;;
-b) gdb="" ;;
-x) extra="--single-step=yes --optimise=no --cleanup=no --dump-error=1" ;;
-c) core=$(ls -t core*|head -1)
if test -z $core; then
echo "$0: there's no core file"
exit 1
fi
cmd="gdb $fgfs $core"
;;
*) break ;;
esac
shift
done
if ! test -e "$fgfs"; then
echo "$0: there's no fgfs exectuable $fgfs"
exit 2
fi
echo "set args $opt" > .gdbinit
test -e fgfs.supp || head -14 sample.fgfs.supp > fgfs.supp
test -z "$cmd" && cmd="nice valgrind $gdb --num-callers=10 --suppressions=fgfs.supp $extra $* $fgfs $opt"
echo "command: $cmd"
exec $cmd