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-rwxr-xr-xtools/testing/selftests/ftrace/ftracetest518
1 files changed, 518 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
new file mode 100755
index 0000000000..c778d4dcc1
--- /dev/null
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -0,0 +1,518 @@
+#!/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 " -K|--ktap Output in KTAP format"
+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
+ ;;
+ --ktap|-K)
+ KTAP=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
+ LINK_PTR=
+ 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 $TEST_DIR`
+LOG_TOP_DIR=$TOP_DIR/logs
+LOG_DATE=`date +%Y%m%d-%H%M%S`
+LOG_DIR=$LOG_TOP_DIR/$LOG_DATE/
+LINK_PTR=$LOG_TOP_DIR/latest
+KEEP_LOG=0
+KTAP=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 > $LOG_FILE
+ if [ "x-$LINK_PTR" != "x-" ]; then
+ unlink $LINK_PTR
+ ln -fs $LOG_DATE $LINK_PTR
+ fi
+fi
+
+# Define text colors
+# Check available colors on the terminal, if any
+ncolors=`tput colors 2>/dev/null || echo 0`
+color_reset=
+color_red=
+color_green=
+color_blue=
+# If stdout exists and number of colors is eight or more, use them
+if [ -t 1 -a "$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 [ "$1" = "-n" ] ; then
+ newline=
+ shift
+ fi
+ [ "$KTAP" != "1" ] && printf "$*$newline"
+ [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
+}
+catlog() { #file
+ cat $1
+ [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE
+}
+prlog "=== Ftrace unit tests ==="
+
+
+# Testcase management
+# Test result codes - Dejagnu extended code
+PASS=0 # The test succeeded.
+FAIL=1 # The test failed, but was expected to succeed.
+UNRESOLVED=2 # The test produced indeterminate results. (e.g. interrupted)
+UNTESTED=3 # The test was not run, currently just a placeholder.
+UNSUPPORTED=4 # The test failed because of lack of feature.
+XFAIL=5 # The test failed, and was expected to fail.
+
+# Accumulations
+PASSED_CASES=
+FAILED_CASES=
+UNRESOLVED_CASES=
+UNTESTED_CASES=
+UNSUPPORTED_CASES=
+XFAILED_CASES=
+UNDEFINED_CASES=
+TOTAL_RESULT=0
+
+INSTANCE=
+CASENO=0
+CASENAME=
+
+testcase() { # testfile
+ CASENO=$((CASENO+1))
+ CASENAME=`grep "^#[ \t]*description:" $1 | cut -f2- -d:`
+}
+
+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" $1
+}
+
+ktaptest() { # result comment
+ if [ "$KTAP" != "1" ]; then
+ return
+ fi
+
+ local result=
+ if [ "$1" = "1" ]; then
+ result="ok"
+ else
+ result="not ok"
+ fi
+ shift
+
+ local comment=$*
+ if [ "$comment" != "" ]; then
+ comment="# $comment"
+ fi
+
+ echo $result $CASENO $INSTANCE$CASENAME $comment
+}
+
+eval_result() { # sigval
+ case $1 in
+ $PASS)
+ prlog " [${color_green}PASS${color_reset}]"
+ ktaptest 1
+ PASSED_CASES="$PASSED_CASES $CASENO"
+ return 0
+ ;;
+ $FAIL)
+ prlog " [${color_red}FAIL${color_reset}]"
+ ktaptest 0
+ FAILED_CASES="$FAILED_CASES $CASENO"
+ return 1 # this is a bug.
+ ;;
+ $UNRESOLVED)
+ prlog " [${color_blue}UNRESOLVED${color_reset}]"
+ ktaptest 0 UNRESOLVED
+ UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
+ return $UNRESOLVED_RESULT # depends on use case
+ ;;
+ $UNTESTED)
+ prlog " [${color_blue}UNTESTED${color_reset}]"
+ ktaptest 1 SKIP
+ UNTESTED_CASES="$UNTESTED_CASES $CASENO"
+ return 0
+ ;;
+ $UNSUPPORTED)
+ prlog " [${color_blue}UNSUPPORTED${color_reset}]"
+ ktaptest 1 SKIP
+ UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
+ return $UNSUPPORTED_RESULT # depends on use case
+ ;;
+ $XFAIL)
+ prlog " [${color_green}XFAIL${color_reset}]"
+ ktaptest 1 XFAIL
+ XFAILED_CASES="$XFAILED_CASES $CASENO"
+ return 0
+ ;;
+ *)
+ prlog " [${color_blue}UNDEFINED${color_reset}]"
+ ktaptest 0 error
+ UNDEFINED_CASES="$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 $1
+ prlog -n "[$CASENO]$INSTANCE$CASENAME"
+ 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
+. $TEST_DIR/functions
+
+if [ "$KTAP" = "1" ]; then
+ echo "TAP version 13"
+
+ casecount=`echo $TEST_CASES | wc -w`
+ for t in $TEST_CASES; do
+ test_on_instance $t || continue
+ casecount=$((casecount+1))
+ done
+ echo "1..${casecount}"
+fi
+
+# 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; finish_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 $UNDEFINED_CASES | wc -w`
+
+if [ "$KTAP" = "1" ]; then
+ echo -n "# Totals:"
+ echo -n " pass:"`echo $PASSED_CASES | wc -w`
+ echo -n " faii:"`echo $FAILED_CASES | wc -w`
+ echo -n " xfail:"`echo $XFAILED_CASES | wc -w`
+ echo -n " xpass:0"
+ echo -n " skip:"`echo $UNTESTED_CASES $UNSUPPORTED_CASES | wc -w`
+ echo -n " error:"`echo $UNRESOLVED_CASES $UNDEFINED_CASES | wc -w`
+ echo
+fi
+
+cleanup
+
+# if no error, return 0
+exit $TOTAL_RESULT