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Subject[PATCH 2/2] selftests: ftrace: Add more verbosity for immediate log
Date
Add 3-level verbosity for showing traced command log
on console immediately. Since some test cases can cause
kernel pacic if there is a probrem (like regression etc.),
we can not know which command caused the problem without
traced command log. This verbosity (-vvv) solves that
because it shows the log on console immediately. User
can get continuous command/error log.

Note that this is a kind of kernel debug mode, if you
don't see any kernel related issue, you don't need this
verbosity.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
tools/testing/selftests/ftrace/ftracetest | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index 290cd42..e3f1521 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -15,6 +15,7 @@ echo " -h|--help Show help message"
echo " -k|--keep Keep passed test logs"
echo " -v|--verbose Increase verbosity of test messages"
echo " -vv Alias of -v -v (Show all results in stdout)"
+echo " -vvv Alias of -v -v -v (Show all commands immediately)"
echo " -d|--debug Debug mode (trace all shell commands)"
echo " -l|--logdir <dir> Save logs on the <dir>"
exit $1
@@ -56,9 +57,10 @@ parse_opts() { # opts
KEEP_LOG=1
shift 1
;;
- --verbose|-v|-vv)
+ --verbose|-v|-vv|-vvv)
VERBOSE=$((VERBOSE + 1))
[ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
+ [ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
shift 1
;;
--debug|-d)
@@ -252,7 +254,9 @@ run_test() { # testfile
testcase $1
echo "execute$INSTANCE: "$1 > $testlog
SIG_RESULT=0
- if [ $VERBOSE -ge 2 ]; then
+ if [ $VERBOSE -ge 3 ]; then
+ __run_test $1 | tee -a $testlog 2>&1
+ elif [ $VERBOSE -eq 2 ]; then
__run_test $1 2>> $testlog | tee -a $testlog
else
__run_test $1 >> $testlog 2>&1
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