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authorKees Cook <keescook@chromium.org>2013-06-18 14:49:29 -0700
committerMichal Marek <mmarek@suse.cz>2013-07-03 15:26:29 +0200
commit90d06a46835ba73deffb483970fdc2bffa4bb274 (patch)
tree2d0537539192b7db1fe186e50cdad37fc6bd8ec2 /scripts
parent61cb48c3f93adee633f996dd40ff5267fae55b3a (diff)
downloadlinux-linaro-stable-90d06a46835ba73deffb483970fdc2bffa4bb274.tar.gz
coccicheck: span checks across CPUs
This adds parallelism by default to the "coccicheck" target using spatch's "-max" and "-index" arguments. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/coccicheck31
1 files changed, 28 insertions, 3 deletions
diff --git a/scripts/coccicheck b/scripts/coccicheck
index 9d8780cdbcd4..ad8e8ffd3c7e 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -2,15 +2,24 @@
SPATCH="`which ${SPATCH:=spatch}`"
+trap kill_running SIGTERM SIGINT
+declare -a SPATCH_PID
+
# The verbosity may be set by the environmental parameter V=
# as for example with 'make V=1 coccicheck'
if [ -n "$V" -a "$V" != "0" ]; then
- VERBOSE=1
+ VERBOSE="$V"
else
VERBOSE=0
fi
+if [ -z "$J" ]; then
+ NPROC=$(getconf _NPROCESSORS_ONLN)
+else
+ NPROC="$J"
+fi
+
FLAGS="$SPFLAGS -very_quiet"
# spatch only allows include directories with the syntax "-I include"
@@ -69,12 +78,28 @@ if [ "$ONLINE" = "0" ] ; then
fi
run_cmd() {
+ local i
if [ $VERBOSE -ne 0 ] ; then
- echo "Running: $@"
+ echo "Running ($NPROC in parallel): $@"
fi
- eval $@
+ for i in $(seq 0 $(( NPROC - 1)) ); do
+ eval "$@ -max $NPROC -index $i &"
+ SPATCH_PID[$i]=$!
+ if [ $VERBOSE -eq 2 ] ; then
+ echo "${SPATCH_PID[$i]} running"
+ fi
+ done
+ wait
}
+kill_running() {
+ for i in $(seq $(( NPROC - 1 )) ); do
+ if [ $VERBOSE -eq 2 ] ; then
+ echo "Killing ${SPATCH_PID[$i]}"
+ fi
+ kill ${SPATCH_PID[$i]} 2>/dev/null
+ done
+}
coccinelle () {
COCCI="$1"