[kernel-build 2/2] kernel: forward build failures

In case the kernel build fails, the calling tool chain should also
return with a non-zero exit code, to indicate that the currently used
tool chain is broken. This change allows to forward the exit code
accordingly.

Signed-off-by: Norbert Manthey <[email protected]>

---
 smatch_scripts/build_kernel_data.sh | 4 +++-
 smatch_scripts/test_kernel.sh       | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/smatch_scripts/build_kernel_data.sh b/smatch_scripts/build_kernel_data.sh
--- a/smatch_scripts/build_kernel_data.sh
+++ b/smatch_scripts/build_kernel_data.sh
@@ -35,7 +35,8 @@ if [ ! -e smatch_db.sqlite ] ; then
     fi
 fi
 
-$SCRIPT_DIR/test_kernel.sh --call-tree --info --param-mapper --spammy --data=$DATA_DIR
+BUILD_STATUS=0
+$SCRIPT_DIR/test_kernel.sh --call-tree --info --param-mapper --spammy --data=$DATA_DIR || BUILD_STATUS=$?
 
 for i in $SCRIPT_DIR/gen_* ; do
 	$i smatch_warns.txt -p=kernel
@@ -45,3 +46,4 @@ mv ${PROJECT}.* $DATA_DIR
 
 $DATA_DIR/db/create_db.sh -p=kernel smatch_warns.txt
 
+exit $BUILD_STATUS
diff --git a/smatch_scripts/test_kernel.sh b/smatch_scripts/test_kernel.sh
--- a/smatch_scripts/test_kernel.sh
+++ b/smatch_scripts/test_kernel.sh
@@ -60,8 +60,10 @@ make clean
 find -name \*.c.smatch -exec rm \{\} \;
 make -j${NR_CPU} $ENDIAN -k CHECK="$CMD -p=kernel --file-output --succeed $*" \
 	C=1 $BUILD_PARAM $TARGET 2>&1 | tee $LOG
+BUILD_STATUS=${PIPESTATUS[0]}
 find -name \*.c.smatch -exec cat \{\} \; -exec rm \{\} \; > $WLOG
 find -name \*.c.smatch.sql -exec cat \{\} \; -exec rm \{\} \; > $WLOG.sql
 find -name \*.c.smatch.caller_info -exec cat \{\} \; -exec rm \{\} \; > $WLOG.caller_info
 
-echo "Done.  The warnings are saved to $WLOG"
+echo "Done. Build with status $BUILD_STATUS. The warnings are saved to $WLOG"
+exit $BUILD_STATUS
-- 
2.7.4




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