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linux-next/tools/testing/selftests/ftrace/ftracetest
Masami Hiramatsu 9768cc46d3 selftests/ftrace: Cleanup ftrace after running test
Cleanup ftrace by initialize_ftrace() after running
all test cases. This means we also don't need cleanup
ftrace on each test case, except for some special
options.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-10-24 14:49:35 -06:00

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#!/bin/sh
# ftracetest - Ftrace test shell scripts
#
# Copyright (C) Hitachi Ltd., 2014
# Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
#
# Released under the terms of the GPL v2.
usage() { # errno [message]
[ ! -z "$2" ] && echo $2
echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
echo " Options:"
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 " --fail-unsupported Treat UNSUPPORTED as a failure"
echo " -d|--debug Debug mode (trace all shell commands)"
echo " -l|--logdir <dir> Save logs on the <dir>"
echo " If <dir> is -, all logs output in console only"
exit $1
}
errexit() { # message
echo "Error: $1" 1>&2
exit 1
}
# Ensuring user privilege
if [ `id -u` -ne 0 ]; then
errexit "this must be run by root user"
fi
# Utilities
absdir() { # file_path
(cd `dirname $1`; pwd)
}
abspath() {
echo `absdir $1`/`basename $1`
}
find_testcases() { #directory
echo `find $1 -name \*.tc | sort`
}
parse_opts() { # opts
local OPT_TEST_CASES=
local OPT_TEST_DIR=
while [ ! -z "$1" ]; do
case "$1" in
--help|-h)
usage 0
;;
--keep|-k)
KEEP_LOG=1
shift 1
;;
--verbose|-v|-vv|-vvv)
if [ $VERBOSE -eq -1 ]; then
usage "--console can not use with --verbose"
fi
VERBOSE=$((VERBOSE + 1))
[ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
[ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
shift 1
;;
--console)
if [ $VERBOSE -ne 0 ]; then
usage "--console can not use with --verbose"
fi
VERBOSE=-1
shift 1
;;
--debug|-d)
DEBUG=1
shift 1
;;
--stop-fail)
STOP_FAILURE=1
shift 1
;;
--fail-unsupported)
UNSUPPORTED_RESULT=1
shift 1
;;
--logdir|-l)
LOG_DIR=$2
shift 2
;;
*.tc)
if [ -f "$1" ]; then
OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`"
shift 1
else
usage 1 "$1 is not a testcase"
fi
;;
*)
if [ -d "$1" ]; then
OPT_TEST_DIR=`abspath $1`
OPT_TEST_CASES="$OPT_TEST_CASES `find_testcases $OPT_TEST_DIR`"
shift 1
else
usage 1 "Invalid option ($1)"
fi
;;
esac
done
if [ ! -z "$OPT_TEST_CASES" ]; then
TEST_CASES=$OPT_TEST_CASES
fi
}
# Parameters
DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
if [ -z "$DEBUGFS_DIR" ]; then
TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
else
TRACING_DIR=$DEBUGFS_DIR/tracing
fi
TOP_DIR=`absdir $0`
TEST_DIR=$TOP_DIR/test.d
TEST_CASES=`find_testcases $TEST_DIR`
LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`/
KEEP_LOG=0
DEBUG=0
VERBOSE=0
UNSUPPORTED_RESULT=0
STOP_FAILURE=0
# Parse command-line options
parse_opts $*
[ $DEBUG -ne 0 ] && set -x
# Verify parameters
if [ -z "$TRACING_DIR" -o ! -d "$TRACING_DIR" ]; then
errexit "No ftrace directory found"
fi
# Preparing logs
if [ "x$LOG_DIR" = "x-" ]; then
LOG_FILE=
date
else
LOG_FILE=$LOG_DIR/ftracetest.log
mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
date > $LOG_FILE
fi
prlog() { # messages
[ -z "$LOG_FILE" ] && echo "$@" || echo "$@" | tee -a $LOG_FILE
}
catlog() { #file
[ -z "$LOG_FILE" ] && cat $1 || cat $1 | tee -a $LOG_FILE
}
prlog "=== Ftrace unit tests ==="
# Testcase management
# Test result codes - Dejagnu extended code
PASS=0 # The test succeeded.
FAIL=1 # The test failed, but was expected to succeed.
UNRESOLVED=2 # The test produced indeterminate results. (e.g. interrupted)
UNTESTED=3 # The test was not run, currently just a placeholder.
UNSUPPORTED=4 # The test failed because of lack of feature.
XFAIL=5 # The test failed, and was expected to fail.
# Accumulations
PASSED_CASES=
FAILED_CASES=
UNRESOLVED_CASES=
UNTESTED_CASES=
UNSUPPORTED_CASES=
XFAILED_CASES=
UNDEFINED_CASES=
TOTAL_RESULT=0
INSTANCE=
CASENO=0
testcase() { # testfile
CASENO=$((CASENO+1))
desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
prlog -n "[$CASENO]$INSTANCE$desc"
}
test_on_instance() { # testfile
grep -q "^#[ \t]*flags:.*instance" $1
}
eval_result() { # sigval
case $1 in
$PASS)
prlog " [PASS]"
PASSED_CASES="$PASSED_CASES $CASENO"
return 0
;;
$FAIL)
prlog " [FAIL]"
FAILED_CASES="$FAILED_CASES $CASENO"
return 1 # this is a bug.
;;
$UNRESOLVED)
prlog " [UNRESOLVED]"
UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
return 1 # this is a kind of bug.. something happened.
;;
$UNTESTED)
prlog " [UNTESTED]"
UNTESTED_CASES="$UNTESTED_CASES $CASENO"
return 0
;;
$UNSUPPORTED)
prlog " [UNSUPPORTED]"
UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
return $UNSUPPORTED_RESULT # depends on use case
;;
$XFAIL)
prlog " [XFAIL]"
XFAILED_CASES="$XFAILED_CASES $CASENO"
return 0
;;
*)
prlog " [UNDEFINED]"
UNDEFINED_CASES="$UNDEFINED_CASES $CASENO"
return 1 # this must be a test bug
;;
esac
}
# Signal handling for result codes
SIG_RESULT=
SIG_BASE=36 # Use realtime signals
SIG_PID=$$
exit_pass () {
exit 0
}
SIG_FAIL=$((SIG_BASE + FAIL))
exit_fail () {
exit 1
}
trap 'SIG_RESULT=$FAIL' $SIG_FAIL
SIG_UNRESOLVED=$((SIG_BASE + UNRESOLVED))
exit_unresolved () {
kill -s $SIG_UNRESOLVED $SIG_PID
exit 0
}
trap 'SIG_RESULT=$UNRESOLVED' $SIG_UNRESOLVED
SIG_UNTESTED=$((SIG_BASE + UNTESTED))
exit_untested () {
kill -s $SIG_UNTESTED $SIG_PID
exit 0
}
trap 'SIG_RESULT=$UNTESTED' $SIG_UNTESTED
SIG_UNSUPPORTED=$((SIG_BASE + UNSUPPORTED))
exit_unsupported () {
kill -s $SIG_UNSUPPORTED $SIG_PID
exit 0
}
trap 'SIG_RESULT=$UNSUPPORTED' $SIG_UNSUPPORTED
SIG_XFAIL=$((SIG_BASE + XFAIL))
exit_xfail () {
kill -s $SIG_XFAIL $SIG_PID
exit 0
}
trap 'SIG_RESULT=$XFAIL' $SIG_XFAIL
__run_test() { # testfile
# setup PID and PPID, $$ is not updated.
(cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x; initialize_ftrace; . $1)
[ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
}
# Run one test case
run_test() { # testfile
local testname=`basename $1`
testcase $1
if [ ! -z "$LOG_FILE" ] ; then
local testlog=`mktemp $LOG_DIR/${CASENO}-${testname}-log.XXXXXX`
else
local testlog=/proc/self/fd/1
fi
export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
echo "execute$INSTANCE: "$1 > $testlog
SIG_RESULT=0
if [ $VERBOSE -eq -1 ]; then
__run_test $1
elif [ -z "$LOG_FILE" ]; then
__run_test $1 2>&1
elif [ $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
fi
eval_result $SIG_RESULT
if [ $? -eq 0 ]; then
# Remove test log if the test was done as it was expected.
[ $KEEP_LOG -eq 0 -a ! -z "$LOG_FILE" ] && rm $testlog
else
[ $VERBOSE -eq 1 -o $VERBOSE -eq 2 ] && catlog $testlog
TOTAL_RESULT=1
fi
rm -rf $TMPDIR
}
# load in the helper functions
. $TEST_DIR/functions
# Main loop
for t in $TEST_CASES; do
run_test $t
if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
echo "A failure detected. Stop test."
exit 1
fi
done
# Test on instance loop
INSTANCE=" (instance) "
for t in $TEST_CASES; do
test_on_instance $t || continue
SAVED_TRACING_DIR=$TRACING_DIR
export TRACING_DIR=`mktemp -d $TRACING_DIR/instances/ftracetest.XXXXXX`
run_test $t
rmdir $TRACING_DIR
TRACING_DIR=$SAVED_TRACING_DIR
if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
echo "A failure detected. Stop test."
exit 1
fi
done
(cd $TRACING_DIR; initialize_ftrace) # for cleanup
prlog ""
prlog "# of passed: " `echo $PASSED_CASES | wc -w`
prlog "# of failed: " `echo $FAILED_CASES | wc -w`
prlog "# of unresolved: " `echo $UNRESOLVED_CASES | wc -w`
prlog "# of untested: " `echo $UNTESTED_CASES | wc -w`
prlog "# of unsupported: " `echo $UNSUPPORTED_CASES | wc -w`
prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`
# if no error, return 0
exit $TOTAL_RESULT