linux-kernel - [PATCH v2 01/24] lockdep tests: Display compiler warning and error messages

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Message-Id: <20181204002833.55452-2-bvanassche@acm.org>
Date:   Mon,  3 Dec 2018 16:28:10 -0800
From:   Bart Van Assche <bvanassche@....org>
To:     mingo@...hat.com
Cc:     peterz@...radead.org, tj@...nel.org, longman@...hat.com,
        johannes.berg@...el.com, linux-kernel@...r.kernel.org,
        Bart Van Assche <bvanassche@....org>,
        Johannes Berg <johannes@...solutions.net>
Subject: [PATCH v2 01/24] lockdep tests: Display compiler warning and error messages

If compilation of liblockdep fails, display an error message and exit
immediately. Display compiler warning and error messages that are
generated while building a test. Only run a test if compilation
succeeded.

Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Waiman Long <longman@...hat.com>
Cc: Johannes Berg <johannes@...solutions.net>
Signed-off-by: Bart Van Assche <bvanassche@....org>
---
 tools/lib/lockdep/run_tests.sh | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
index 2e570a188f16..9f31f84e7fac 100755
--- a/tools/lib/lockdep/run_tests.sh
+++ b/tools/lib/lockdep/run_tests.sh
@@ -1,13 +1,17 @@
 #! /bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
-make &> /dev/null
+if ! make >/dev/null; then
+    echo "Building liblockdep failed."
+    echo "FAILED!"
+    exit 1
+fi
 
 for i in `ls tests/*.c`; do
 	testname=$(basename "$i" .c)
-	gcc -o tests/$testname -pthread $i liblockdep.a -Iinclude -D__USE_LIBLOCKDEP &> /dev/null
 	echo -ne "$testname... "
-	if [ $(timeout 1 ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then
+	if gcc -o "tests/$testname" -pthread "$i" liblockdep.a -Iinclude -D__USE_LIBLOCKDEP &&
+		[ "$(timeout 1 "./tests/$testname" 2>&1 | wc -l)" -gt 0 ]; then
 		echo "PASSED!"
 	else
 		echo "FAILED!"
@@ -19,9 +23,9 @@ done
 
 for i in `ls tests/*.c`; do
 	testname=$(basename "$i" .c)
-	gcc -o tests/$testname -pthread -Iinclude $i &> /dev/null
 	echo -ne "(PRELOAD) $testname... "
-	if [ $(timeout 1 ./lockdep ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then
+	if gcc -o "tests/$testname" -pthread -Iinclude "$i" &&
+		[ "$(timeout 1 ./lockdep "./tests/$testname" 2>&1 | wc -l)" -gt 0 ]; then
 		echo "PASSED!"
 	else
 		echo "FAILED!"
-- 
2.20.0.rc1.387.gf8505762e3-goog