crosstool-ng: scripts/build/debug/duma.in@1ab3d2e08c8b (annotated)

yann@635	1	#!/bin/sh
yann@635	2	# (C) 2008 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
yann@635	3	# Licensed under the GPL v.2
yann@635	4
yann@635	5	LIBDUMA_SO=
yann@635	6
yann@635	7	case "$1" in
yann@635	8	-on)
yann@635	9	case "${LD_PRELOAD}" in
yann@635	10	${LIBDUMA_SO}) ;;
yann@635	11	*) LD_PRELOAD="${LIBDUMA_SO} ${LD_PRELOAD}";;
yann@635	12	esac
yann@635	13	shift
yann@635	14	;;
yann@635	15	-off)
yann@686	16	# We use a suposedly POSIX-compliant shell: /bin/sh
yann@686	17	# -> we can't use "${LD_PRELOAD//${LIBDUMA_SO}/}", it's not POSIX
yann@686	18	# We don't know if sed will be present on the target
yann@686	19	# -> we can't use $(echo "${LD_PRELOAD}" \|sed -r -e "s\|${LIBDUMA_SO}\|\|;")
yann@686	20	# So, iterate through LD_PRELOAD, and keep only those libs that
yann@686	21	# are not "${LIBDUMA_SO}"
yann@686	22	old_LD_PRELOAD="${LD_PRELOAD}"
yann@686	23	LD_PRELOAD=
yann@686	24	for lib in ${old_LD_PRELOAD}; do
yann@686	25	[ "${lib}" = "${LIBDUMA_SO}" ] \|\| LD_PRELOAD="${LD_PRELOAD} ${lib}"
yann@686	26	done
yann@686	27	unset old_LD_PRELOAD
yann@635	28	shift
yann@635	29	;;
yann@635	30	-show)
yann@635	31	case "${LD_PRELOAD}" in
yann@635	32	${LIBDUMA_SO}) echo "duma is enabled";;
yann@635	33	*) echo "duma is disabled";;
yann@635	34	esac
yann@635	35	exit 0
yann@635	36	;;
yann@635	37	"")
yann@635	38	cat <<_EOF_
yann@635	39	Usage:
yann@635	40	. $0 <-on\|-off\|-show>
yann@635	41	Sets, unsets or show DUMA usage.
yann@635	42	$0 <executable [arg...]>
yann@635	43	Execute 'executable' (with arguments 'args') using DUMA.
yann@635	44	_EOF_
yann@635	45	false # Don't 'exit', we could well be source'd
yann@635	46	;;
yann@635	47	*)
yann@635	48	exec "$0" -on "$@"
yann@635	49	;;
yann@635	50	esac
yann@635	51
yann@635	52	export LD_PRELOAD
yann@635	53	if [ -n "$1" ]; then
yann@635	54	exec "$@"
yann@635	55	fi

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Mon Jan 05 23:02:43 2009 +0000 (2009-01-05)
changeset 1126	1ab3d2e08c8b
parent 635	0d7348cb7faa
child 2908	dcdb309b7967
permissions	-rw-r--r--