diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/ftracetest')
| -rwxr-xr-x | tools/testing/selftests/ftrace/ftracetest | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest new file mode 100755 index 000000000..55314cd19 --- /dev/null +++ b/tools/testing/selftests/ftrace/ftracetest @@ -0,0 +1,453 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only + +# ftracetest - Ftrace test shell scripts +# +# Copyright (C) Hitachi Ltd., 2014 +# Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> +# + +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 " --fail-unresolved Treat UNRESOLVED 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 $1 +} + +# default error +err_ret=1 + +# kselftest skip code is 4 +err_skip=4 + +# umount required +UMOUNT_DIR="" + +# cgroup RT scheduling prevents chrt commands from succeeding, which +# induces failures in test wakeup tests. Disable for the duration of +# the tests. + +readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us + +sched_rt_runtime_orig=$(cat $sched_rt_runtime) + +setup() { + echo -1 > $sched_rt_runtime +} + +cleanup() { + echo $sched_rt_runtime_orig > $sched_rt_runtime + if [ -n "${UMOUNT_DIR}" ]; then + umount ${UMOUNT_DIR} ||: + fi +} + +errexit() { # message + echo "Error: $1" 1>&2 + cleanup + exit $err_ret +} + +# Ensuring user privilege +if [ `id -u` -ne 0 ]; then + errexit "this must be run by root user" +fi + +setup + +# 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 + ;; + --fail-unresolved) + UNRESOLVED_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=$OPT_TEST_CASES + fi +} + +# Parameters +TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1` +if [ -z "$TRACING_DIR" ]; then + DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1` + if [ -z "$DEBUGFS_DIR" ]; then + # If tracefs exists, then so does /sys/kernel/tracing + if [ -d "/sys/kernel/tracing" ]; then + mount -t tracefs nodev /sys/kernel/tracing || + errexit "Failed to mount /sys/kernel/tracing" + TRACING_DIR="/sys/kernel/tracing" + UMOUNT_DIR=${TRACING_DIR} + # If debugfs exists, then so does /sys/kernel/debug + elif [ -d "/sys/kernel/debug" ]; then + mount -t debugfs nodev /sys/kernel/debug || + errexit "Failed to mount /sys/kernel/debug" + TRACING_DIR="/sys/kernel/debug/tracing" + UMOUNT_DIR=${TRACING_DIR} + else + err_ret=$err_skip + errexit "debugfs and tracefs are not configured in this kernel" + fi + else + TRACING_DIR="$DEBUGFS_DIR/tracing" + fi +fi +if [ ! -d "$TRACING_DIR" ]; then + err_ret=$err_skip + errexit "ftrace is not configured in this kernel" +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 +UNRESOLVED_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 > $LOG_FILE +fi + +# Define text colors +# Check available colors on the terminal, if any +ncolors=`tput colors 2>/dev/null || echo 0` +color_reset= +color_red= +color_green= +color_blue= +# If stdout exists and number of colors is eight or more, use them +if [ -t 1 -a "$ncolors" -ge 8 ]; then + color_reset="\033[0m" + color_red="\033[31m" + color_green="\033[32m" + color_blue="\033[34m" +fi + +strip_esc() { + # busybox sed implementation doesn't accept "\x1B", so use [:cntrl:] instead. + sed -E "s/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g" +} + +prlog() { # messages + newline="\n" + if [ "$1" = "-n" ] ; then + newline= + shift + fi + printf "$*$newline" + [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE +} +catlog() { #file + cat $1 + [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE +} +prlog "=== Ftrace unit tests ===" + + +# Testcase management +# Test result codes - Dejagnu extended code +PASS=0 # The test succeeded. +FAIL=1 # The test failed, but was expected to succeed. +UNRESOLVED=2 # The test produced indeterminate results. (e.g. interrupted) +UNTESTED=3 # The test was not run, currently just a placeholder. +UNSUPPORTED=4 # The test failed because of lack of feature. +XFAIL=5 # The test failed, and was expected to fail. + +# Accumulations +PASSED_CASES= +FAILED_CASES= +UNRESOLVED_CASES= +UNTESTED_CASES= +UNSUPPORTED_CASES= +XFAILED_CASES= +UNDEFINED_CASES= +TOTAL_RESULT=0 + +INSTANCE= +CASENO=0 + +testcase() { # testfile + CASENO=$((CASENO+1)) + desc=`grep "^#[ \t]*description:" $1 | cut -f2- -d:` + prlog -n "[$CASENO]$INSTANCE$desc" +} + +checkreq() { # testfile + requires=`grep "^#[ \t]*requires:" $1 | cut -f2- -d:` + # Use eval to pass quoted-patterns correctly. + eval check_requires "$requires" +} + +test_on_instance() { # testfile + grep -q "^#[ \t]*flags:.*instance" $1 +} + +eval_result() { # sigval + case $1 in + $PASS) + prlog " [${color_green}PASS${color_reset}]" + PASSED_CASES="$PASSED_CASES $CASENO" + return 0 + ;; + $FAIL) + prlog " [${color_red}FAIL${color_reset}]" + FAILED_CASES="$FAILED_CASES $CASENO" + return 1 # this is a bug. + ;; + $UNRESOLVED) + prlog " [${color_blue}UNRESOLVED${color_reset}]" + UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO" + return $UNRESOLVED_RESULT # depends on use case + ;; + $UNTESTED) + prlog " [${color_blue}UNTESTED${color_reset}]" + UNTESTED_CASES="$UNTESTED_CASES $CASENO" + return 0 + ;; + $UNSUPPORTED) + prlog " [${color_blue}UNSUPPORTED${color_reset}]" + UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO" + return $UNSUPPORTED_RESULT # depends on use case + ;; + $XFAIL) + prlog " [${color_green}XFAIL${color_reset}]" + XFAILED_CASES="$XFAILED_CASES $CASENO" + return 0 + ;; + *) + prlog " [${color_blue}UNDEFINED${color_reset}]" + UNDEFINED_CASES="$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; + checkreq $1; 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}-${testname}-log.XXXXXX` + else + local testlog=/proc/self/fd/1 + fi + export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX` + export FTRACETEST_ROOT=$TOP_DIR + 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` + +cleanup + +# if no error, return 0 +exit $TOTAL_RESULT |