diff options
Diffstat (limited to 'tools/testing/selftests/ftrace')
26 files changed, 774 insertions, 24 deletions
diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile index 4e6ed13e7f66..a8a5e21850e7 100644 --- a/tools/testing/selftests/ftrace/Makefile +++ b/tools/testing/selftests/ftrace/Makefile @@ -1,9 +1,7 @@ all: TEST_PROGS := ftracetest -TEST_DIRS := test.d +TEST_FILES := test.d +EXTRA_CLEAN := $(OUTPUT)/logs/* include ../lib.mk - -clean: - rm -rf logs/* diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config index ef8214661612..8a1c9f949fe0 100644 --- a/tools/testing/selftests/ftrace/config +++ b/tools/testing/selftests/ftrace/config @@ -1 +1,2 @@ +CONFIG_KPROBES=y CONFIG_FTRACE=y diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index 52e3c4df28d6..14a03ea1e21d 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -16,6 +16,7 @@ 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 " -d|--debug Debug mode (trace all shell commands)" +echo " -l|--logdir <dir> Save logs on the <dir>" exit $1 } @@ -57,13 +58,17 @@ parse_opts() { # opts ;; --verbose|-v|-vv) VERBOSE=$((VERBOSE + 1)) - [ $1 == '-vv' ] && VERBOSE=$((VERBOSE + 1)) + [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1)) shift 1 ;; --debug|-d) DEBUG=1 shift 1 ;; + --logdir|-l) + LOG_DIR=$2 + shift 2 + ;; *.tc) if [ -f "$1" ]; then OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`" @@ -145,11 +150,16 @@ XFAILED_CASES= UNDEFINED_CASES= TOTAL_RESULT=0 +INSTANCE= CASENO=0 testcase() { # testfile CASENO=$((CASENO+1)) desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:` - prlog -n "[$CASENO]$desc" + prlog -n "[$CASENO]$INSTANCE$desc" +} + +test_on_instance() { # testfile + grep -q "^#[ \t]*flags:.*instance" $1 } eval_result() { # sigval @@ -240,7 +250,7 @@ run_test() { # testfile local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX` export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX` testcase $1 - echo "execute: "$1 > $testlog + echo "execute$INSTANCE: "$1 > $testlog SIG_RESULT=0 if [ $VERBOSE -ge 2 ]; then __run_test $1 2>> $testlog | tee -a $testlog @@ -266,6 +276,17 @@ for t in $TEST_CASES; do run_test $t 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 +done + prlog "" prlog "# of passed: " `echo $PASSED_CASES | wc -w` prlog "# of failed: " `echo $FAILED_CASES | wc -w` diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc index bf9a7b037924..ebfce83f35b4 100644 --- a/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc +++ b/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: Basic test for tracers +# flags: instance test -f available_tracers for t in `cat available_tracers`; do echo $t > current_tracer diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc index bde6625d9785..9e33f841812f 100644 --- a/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc +++ b/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: Basic trace clock test +# flags: instance test -f trace_clock for c in `cat trace_clock | tr -d \[\]`; do echo $c > trace_clock diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc index 87eb9d6dd4ca..283b45ecb199 100644 --- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc +++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event tracing - enable/disable with event level files +# flags: instance do_reset() { echo > set_event diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc index d4ab27b522f8..96c1a95be4f7 100644 --- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event tracing - restricts events based on pid +# flags: instance do_reset() { echo > set_event diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc index ced27ef0638f..b8fe2e5b9e67 100644 --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event tracing - enable/disable with subsystem level files +# flags: instance do_reset() { echo > set_event diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc index 0bb5df3c00d4..15e2d3fe1731 100644 --- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc +++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc @@ -28,7 +28,9 @@ echo '*:*' > set_event yield -count=`cat trace | grep -v ^# | wc -l` +echo 0 > tracing_on + +count=`head -n 128 trace | grep -v ^# | wc -l` if [ $count -eq 0 ]; then fail "none of events are recorded" fi @@ -36,10 +38,12 @@ fi do_reset echo 1 > events/enable +echo 1 > tracing_on yield -count=`cat trace | grep -v ^# | wc -l` +echo 0 > tracing_on +count=`head -n 128 trace | grep -v ^# | wc -l` if [ $count -eq 0 ]; then fail "none of events are recorded" fi diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc index 9dcd0ca1f49c..8095e122daa9 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc @@ -11,17 +11,6 @@ fi disable_tracing clear_trace -# filter by ?, schedule is always good -if ! echo "sch?dule" > set_ftrace_filter; then - # test for powerpc 64 - if ! echo ".sch?dule" > set_ftrace_filter; then - fail "can not enable schedule filter" - fi - cat set_ftrace_filter | grep '^.schedule$' -else - cat set_ftrace_filter | grep '^schedule$' -fi - ftrace_filter_check() { # glob grep echo "$1" > set_ftrace_filter cut -f1 -d" " set_ftrace_filter > $TMPDIR/actual @@ -39,11 +28,28 @@ ftrace_filter_check '*schedule*' '^.*schedule.*$' # filter by *, end match ftrace_filter_check 'schedule*' '^schedule.*$' +# Advanced full-glob matching feature is recently supported. +# Skip the tests if we are sure the kernel does not support it. +if grep -q 'accepts: .* glob-matching-pattern' README ; then + # filter by *, both side match ftrace_filter_check 'sch*ule' '^sch.*ule$' # filter by char class. ftrace_filter_check '[Ss]y[Ss]_*' '^[Ss]y[Ss]_.*$' +# filter by ?, schedule is always good +if ! echo "sch?dule" > set_ftrace_filter; then + # test for powerpc 64 + if ! echo ".sch?dule" > set_ftrace_filter; then + fail "can not enable schedule filter" + fi + cat set_ftrace_filter | grep '^.schedule$' +else + cat set_ftrace_filter | grep '^schedule$' +fi + +fi + echo > set_ftrace_filter enable_tracing diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc new file mode 100644 index 000000000000..bab5ff7c607e --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc @@ -0,0 +1,117 @@ +#!/bin/sh +# description: ftrace - function pid filters + +# Make sure that function pid matching filter works. +# Also test it on an instance directory + +if ! grep -q function available_tracers; then + echo "no function tracer configured" + exit_unsupported +fi + +if [ ! -f set_ftrace_pid ]; then + echo "set_ftrace_pid not found? Is function tracer not set?" + exit_unsupported +fi + +if [ ! -f set_ftrace_filter ]; then + echo "set_ftrace_filter not found? Is function tracer not set?" + exit_unsupported +fi + +do_function_fork=1 + +if [ ! -f options/function-fork ]; then + do_function_fork=0 + echo "no option for function-fork found. Option will not be tested." +fi + +read PID _ < /proc/self/stat + +if [ $do_function_fork -eq 1 ]; then + # default value of function-fork option + orig_value=`grep function-fork trace_options` +fi + +do_reset() { + reset_tracer + clear_trace + enable_tracing + echo > set_ftrace_filter + echo > set_ftrace_pid + + if [ $do_function_fork -eq 0 ]; then + return + fi + + echo $orig_value > trace_options +} + +fail() { # msg + do_reset + echo $1 + exit $FAIL +} + +yield() { + ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1 +} + +do_test() { + disable_tracing + + echo do_execve* > set_ftrace_filter + echo *do_fork >> set_ftrace_filter + + echo $PID > set_ftrace_pid + echo function > current_tracer + + if [ $do_function_fork -eq 1 ]; then + # don't allow children to be traced + echo nofunction-fork > trace_options + fi + + enable_tracing + yield + + count_pid=`cat trace | grep -v ^# | grep $PID | wc -l` + count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l` + + # count_other should be 0 + if [ $count_pid -eq 0 -o $count_other -ne 0 ]; then + fail "PID filtering not working?" + fi + + disable_tracing + clear_trace + + if [ $do_function_fork -eq 0 ]; then + return + fi + + # allow children to be traced + echo function-fork > trace_options + + enable_tracing + yield + + count_pid=`cat trace | grep -v ^# | grep $PID | wc -l` + count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l` + + # count_other should NOT be 0 + if [ $count_pid -eq 0 -o $count_other -eq 0 ]; then + fail "PID filtering not following fork?" + fi +} + +do_test + +mkdir instances/foo +cd instances/foo +do_test +cd ../../ +rmdir instances/foo + +do_reset + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc new file mode 100644 index 000000000000..77dfb6b48186 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc @@ -0,0 +1,123 @@ +#!/bin/sh +# description: ftrace - test for function event triggers +# flags: instance +# +# Ftrace allows to add triggers to functions, such as enabling or disabling +# tracing, enabling or disabling trace events, or recording a stack trace +# within the ring buffer. +# +# This test is designed to test event triggers +# + +# The triggers are set within the set_ftrace_filter file +if [ ! -f set_ftrace_filter ]; then + echo "set_ftrace_filter not found? Is dynamic ftrace not set?" + exit_unsupported +fi + +do_reset() { + reset_ftrace_filter + reset_tracer + disable_events + clear_trace + enable_tracing +} + +fail() { # mesg + do_reset + echo $1 + exit $FAIL +} + +SLEEP_TIME=".1" + +do_reset + +echo "Testing function probes with events:" + +EVENT="sched:sched_switch" +EVENT_ENABLE="events/sched/sched_switch/enable" + +cnt_trace() { + grep -v '^#' trace | wc -l +} + +test_event_enabled() { + val=$1 + + e=`cat $EVENT_ENABLE` + if [ "$e" != $val ]; then + echo "Expected $val but found $e" + exit 1 + fi +} + +run_enable_disable() { + enable=$1 # enable + Enable=$2 # Enable + check_disable=$3 # 0 + check_enable_star=$4 # 1* + check_disable_star=$5 # 0* + + cnt=`cnt_trace` + if [ $cnt -ne 0 ]; then + fail "Found junk in trace file" + fi + + echo "$Enable event all the time" + + echo $check_disable > $EVENT_ENABLE + sleep $SLEEP_TIME + + test_event_enabled $check_disable + + echo "schedule:${enable}_event:$EVENT" > set_ftrace_filter + if [ -d ../../instances ]; then # Check instances + cur=`cat set_ftrace_filter` + top=`cat ../../set_ftrace_filter` + if [ "$cur" = "$top" ]; then + echo "This kernel is too old to support per instance filter" + reset_ftrace_filter + exit_unsupported + fi + fi + + echo " make sure it works 5 times" + + for i in `seq 5`; do + sleep $SLEEP_TIME + echo " test $i" + test_event_enabled $check_enable_star + + echo $check_disable > $EVENT_ENABLE + done + sleep $SLEEP_TIME + echo " make sure it's still works" + test_event_enabled $check_enable_star + + reset_ftrace_filter + + echo " make sure it only works 3 times" + + echo $check_disable > $EVENT_ENABLE + sleep $SLEEP_TIME + + echo "schedule:${enable}_event:$EVENT:3" > set_ftrace_filter + + for i in `seq 3`; do + sleep $SLEEP_TIME + echo " test $i" + test_event_enabled $check_enable_star + + echo $check_disable > $EVENT_ENABLE + done + + sleep $SLEEP_TIME + echo " make sure it stop working" + test_event_enabled $check_disable_star + + do_reset +} + +run_enable_disable enable Enable 0 "1*" "0*" +run_enable_disable disable Disable 1 "0*" "1*" diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc new file mode 100644 index 000000000000..113b4d9bc733 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc @@ -0,0 +1,132 @@ +#!/bin/sh +# description: ftrace - test reading of set_ftrace_filter +# +# The set_ftrace_filter file of ftrace is used to list functions as well as +# triggers (probes) attached to functions. The code to read this file is not +# straight forward and has had various bugs in the past. This test is designed +# to add functions and triggers to that file in various ways and read that +# file in various ways (cat vs dd). +# + +# The triggers are set within the set_ftrace_filter file +if [ ! -f set_ftrace_filter ]; then + echo "set_ftrace_filter not found? Is dynamic ftrace not set?" + exit_unsupported +fi + +do_reset() { + reset_tracer + reset_ftrace_filter + disable_events + clear_trace + enable_tracing +} + +fail() { # mesg + do_reset + echo $1 + exit $FAIL +} + +do_reset + +FILTER=set_ftrace_filter +FUNC1="schedule" +FUNC2="do_IRQ" + +ALL_FUNCS="#### all functions enabled ####" + +test_func() { + if ! echo "$1" | grep -q "^$2\$"; then + return 0 + fi + echo "$1" | grep -v "^$2\$" + return 1 +} + +check_set_ftrace_filter() { + cat=`cat $FILTER` + dd1=`dd if=$FILTER bs=1 | grep -v -e 'records in' -e 'records out' -e 'bytes copied'` + dd100=`dd if=$FILTER bs=100 | grep -v -e 'records in' -e 'records out' -e 'bytes copied'` + + echo "Testing '$@'" + + while [ $# -gt 0 ]; do + echo "test $1" + if cat=`test_func "$cat" "$1"`; then + return 0 + fi + if dd1=`test_func "$dd1" "$1"`; then + return 0 + fi + if dd100=`test_func "$dd100" "$1"`; then + return 0 + fi + shift + done + + if [ -n "$cat" ]; then + return 0 + fi + if [ -n "$dd1" ]; then + return 0 + fi + if [ -n "$dd100" ]; then + return 0 + fi + return 1; +} + +if check_set_ftrace_filter "$ALL_FUNCS"; then + fail "Expected only $ALL_FUNCS" +fi + +echo "$FUNC1:traceoff" > set_ftrace_filter +if check_set_ftrace_filter "$ALL_FUNCS" "$FUNC1:traceoff:unlimited"; then + fail "Expected $ALL_FUNCS and $FUNC1:traceoff:unlimited" +fi + +echo "$FUNC1" > set_ftrace_filter +if check_set_ftrace_filter "$FUNC1" "$FUNC1:traceoff:unlimited"; then + fail "Expected $FUNC1 and $FUNC1:traceoff:unlimited" +fi + +echo "$FUNC2" >> set_ftrace_filter +if check_set_ftrace_filter "$FUNC1" "$FUNC2" "$FUNC1:traceoff:unlimited"; then + fail "Expected $FUNC1 $FUNC2 and $FUNC1:traceoff:unlimited" +fi + +echo "$FUNC2:traceoff" >> set_ftrace_filter +if check_set_ftrace_filter "$FUNC1" "$FUNC2" "$FUNC1:traceoff:unlimited" "$FUNC2:traceoff:unlimited"; then + fail "Expected $FUNC1 $FUNC2 $FUNC1:traceoff:unlimited and $FUNC2:traceoff:unlimited" +fi + +echo "$FUNC1" > set_ftrace_filter +if check_set_ftrace_filter "$FUNC1" "$FUNC1:traceoff:unlimited" "$FUNC2:traceoff:unlimited"; then + fail "Expected $FUNC1 $FUNC1:traceoff:unlimited and $FUNC2:traceoff:unlimited" +fi + +echo > set_ftrace_filter +if check_set_ftrace_filter "$ALL_FUNCS" "$FUNC1:traceoff:unlimited" "$FUNC2:traceoff:unlimited"; then + fail "Expected $ALL_FUNCS $FUNC1:traceoff:unlimited and $FUNC2:traceoff:unlimited" +fi + +reset_ftrace_filter + +if check_set_ftrace_filter "$ALL_FUNCS"; then + fail "Expected $ALL_FUNCS" +fi + +echo "$FUNC1" > set_ftrace_filter +if check_set_ftrace_filter "$FUNC1" ; then + fail "Expected $FUNC1" +fi + +echo "$FUNC2" >> set_ftrace_filter +if check_set_ftrace_filter "$FUNC1" "$FUNC2" ; then + fail "Expected $FUNC1 and $FUNC2" +fi + +do_reset + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc new file mode 100644 index 000000000000..7a9ab4ff83b6 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc @@ -0,0 +1,185 @@ +#!/bin/sh +# description: ftrace - test for function traceon/off triggers +# flags: instance +# +# Ftrace allows to add triggers to functions, such as enabling or disabling +# tracing, enabling or disabling trace events, or recording a stack trace +# within the ring buffer. +# +# This test is designed to test enabling and disabling tracing triggers +# + +# The triggers are set within the set_ftrace_filter file +if [ ! -f set_ftrace_filter ]; then + echo "set_ftrace_filter not found? Is dynamic ftrace not set?" + exit_unsupported +fi + +do_reset() { + reset_ftrace_filter + reset_tracer + disable_events + clear_trace + enable_tracing +} + +fail() { # mesg + do_reset + echo $1 + exit $FAIL +} + +SLEEP_TIME=".1" + +do_reset + +echo "Testing function probes with enabling disabling tracing:" + +cnt_trace() { + grep -v '^#' trace | wc -l +} + +echo '** DISABLE TRACING' +disable_tracing +clear_trace + +cnt=`cnt_trace` +if [ $cnt -ne 0 ]; then + fail "Found junk in trace" +fi + + +echo '** ENABLE EVENTS' + +echo 1 > events/enable + +echo '** ENABLE TRACING' +enable_tracing + +cnt=`cnt_trace` +if [ $cnt -eq 0 ]; then + fail "Nothing found in trace" +fi + +# powerpc uses .schedule +func="schedule" +available_file=available_filter_functions +if [ -d ../../instances -a -f ../../available_filter_functions ]; then + available_file=../../available_filter_functions +fi +x=`grep '^\.schedule$' available_filter_functions | wc -l` +if [ "$x" -eq 1 ]; then + func=".schedule" +fi + +echo '** SET TRACEOFF' + +echo "$func:traceoff" > set_ftrace_filter +if [ -d ../../instances ]; then # Check instances + cur=`cat set_ftrace_filter` + top=`cat ../../set_ftrace_filter` + if [ "$cur" = "$top" ]; then + echo "This kernel is too old to support per instance filter" + reset_ftrace_filter + exit_unsupported + fi +fi + +cnt=`grep schedule set_ftrace_filter | wc -l` +if [ $cnt -ne 1 ]; then + fail "Did not find traceoff trigger" +fi + +cnt=`cnt_trace` +sleep $SLEEP_TIME +cnt2=`cnt_trace` + +if [ $cnt -ne $cnt2 ]; then + fail "Tracing is not stopped" +fi + +on=`cat tracing_on` +if [ $on != "0" ]; then + fail "Tracing is not off" +fi + +csum1=`md5sum trace` +sleep $SLEEP_TIME +csum2=`md5sum trace` + +if [ "$csum1" != "$csum2" ]; then + fail "Tracing file is still changing" +fi + +clear_trace + +cnt=`cnt_trace` +if [ $cnt -ne 0 ]; then + fail "Tracing is still happeing" +fi + +echo "!$func:traceoff" >> set_ftrace_filter + +cnt=`grep schedule set_ftrace_filter | wc -l` +if [ $cnt -ne 0 ]; then + fail "traceoff trigger still exists" +fi + +on=`cat tracing_on` +if [ $on != "0" ]; then + fail "Tracing is started again" +fi + +echo "$func:traceon" > set_ftrace_filter + +cnt=`grep schedule set_ftrace_filter | wc -l` +if [ $cnt -ne 1 ]; then + fail "traceon trigger not found" +fi + +cnt=`cnt_trace` +if [ $cnt -eq 0 ]; then + fail "Tracing did not start" +fi + +on=`cat tracing_on` +if [ $on != "1" ]; then + fail "Tracing was not enabled" +fi + + +echo "!$func:traceon" >> set_ftrace_filter + +cnt=`grep schedule set_ftrace_filter | wc -l` +if [ $cnt -ne 0 ]; then + fail "traceon trigger still exists" +fi + +check_sleep() { + val=$1 + sleep $SLEEP_TIME + cat set_ftrace_filter + on=`cat tracing_on` + if [ $on != "$val" ]; then + fail "Expected tracing_on to be $val, but it was $on" + fi +} + + +echo "$func:traceoff:3" > set_ftrace_filter +check_sleep "0" +echo 1 > tracing_on +check_sleep "0" +echo 1 > tracing_on +check_sleep "0" +echo 1 > tracing_on +check_sleep "1" +echo "!$func:traceoff:0" > set_ftrace_filter + +if grep -e traceon -e traceoff set_ftrace_filter; then + fail "Tracing on and off triggers still exist" +fi + +disable_events + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 91de1a8e4f19..f2019b37370d 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -30,6 +30,27 @@ reset_events_filter() { # reset all current setting filters done } +reset_ftrace_filter() { # reset all triggers in set_ftrace_filter + echo > set_ftrace_filter + grep -v '^#' set_ftrace_filter | while read t; do + tr=`echo $t | cut -d: -f2` + if [ "$tr" = "" ]; then + continue + fi + if [ $tr = "enable_event" -o $tr = "disable_event" ]; then + tr=`echo $t | cut -d: -f1-4` + limit=`echo $t | cut -d: -f5` + else + tr=`echo $t | cut -d: -f1-2` + limit=`echo $t | cut -d: -f3` + fi + if [ "$limit" != "unlimited" ]; then + tr="$tr:$limit" + fi + echo "!$tr" > set_ftrace_filter + done +} + disable_events() { echo 0 > events/enable } diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc index 4c5a061a5b4e..8a353314dc9b 100644 --- a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc +++ b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc @@ -75,10 +75,17 @@ rmdir foo if [ -d foo ]; then fail "foo still exists" fi -exit 0 - - +mkdir foo +echo "schedule:enable_event:sched:sched_switch" > foo/set_ftrace_filter +rmdir foo +if [ -d foo ]; then + fail "foo still exists" +fi +if grep -q "schedule:enable_event:sched:sched_switch" ../set_ftrace_filter; then + echo "Older kernel detected. Cleanup filter" + echo '!schedule:enable_event:sched:sched_switch' > ../set_ftrace_filter +fi instance_slam() { while :; do diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc index 0a78705b43b2..c75faefb4fff 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc @@ -26,7 +26,7 @@ check_types() { test $X2 = $X3 test 0x$X3 = $3 - B4=`printf "%x" $4` + B4=`printf "%02x" $4` B3=`echo -n $X3 | tail -c 3 | head -c 2` test $B3 = $B4 } diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc new file mode 100644 index 000000000000..b9302cc82c12 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc @@ -0,0 +1,36 @@ +#!/bin/sh +# description: Kprobe event auto/manual naming + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +disable_events +echo > kprobe_events + +:;: "Add an event on function without name" ;: + +FUNC=`grep " [tT] .*vfs_read$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "` +[ "x" != "x$FUNC" ] || exit_unresolved +echo "p $FUNC" > kprobe_events +PROBE_NAME=`echo $FUNC | tr ".:" "_"` +test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure + +:;: "Add an event on function with new name" ;: + +echo "p:event1 $FUNC" > kprobe_events +test -d events/kprobes/event1 || exit_failure + +:;: "Add an event on function with new name and group" ;: + +echo "p:kprobes2/event2 $FUNC" > kprobe_events +test -d events/kprobes2/event2 || exit_failure + +:;: "Add an event on dot function without name" ;: + +FUNC=`grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "` +[ "x" != "x$FUNC" ] || exit_unresolved +echo "p $FUNC" > kprobe_events +EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:` +[ "x" != "x$EVENT" ] || exit_failure +test -d events/$EVENT || exit_failure + +echo > kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc new file mode 100644 index 000000000000..6d634e4b7680 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc @@ -0,0 +1,28 @@ +#!/bin/sh +# description: Kprobe dynamic event - probing module + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +disable_events +echo > kprobe_events + +:;: "Add an event on a module function without specifying event name" ;: + +MOD=`lsmod | head -n 2 | tail -n 1 | cut -f1 -d" "` +FUNC=`grep -m 1 ".* t .*\\[$MOD\\]" /proc/kallsyms | xargs | cut -f3 -d" "` +[ "x" != "x$MOD" -a "y" != "y$FUNC" ] || exit_unresolved +echo "p $MOD:$FUNC" > kprobe_events +PROBE_NAME=`echo $MOD:$FUNC | tr ".:" "_"` +test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure + +:;: "Add an event on a module function with new event name" ;: + +echo "p:event1 $MOD:$FUNC" > kprobe_events +test -d events/kprobes/event1 || exit_failure + +:;: "Add an event on a module function with new event and group name" ;: + +echo "p:kprobes1/event1 $MOD:$FUNC" > kprobe_events +test -d events/kprobes1/event1 || exit_failure + +echo > kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc new file mode 100644 index 000000000000..7ec6f2639ad6 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc @@ -0,0 +1,40 @@ +#!/bin/sh +# description: Kretprobe dynamic event with maxactive + +[ -f kprobe_events ] || exit_unsupported # this is configurable +grep -q 'r\[maxactive\]' README || exit_unsupported # this is older version + +echo > kprobe_events + +# Test if we successfully reject unknown messages +if echo 'a:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi + +# Test if we successfully reject too big maxactive +if echo 'r1000000:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi + +# Test if we successfully reject unparsable numbers for maxactive +if echo 'r10fuzz:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi + +# Test for kretprobe with event name without maxactive +echo 'r:myprobeaccept inet_csk_accept' > kprobe_events +grep myprobeaccept kprobe_events +test -d events/kprobes/myprobeaccept +echo '-:myprobeaccept' >> kprobe_events + +# Test for kretprobe with event name with a small maxactive +echo 'r10:myprobeaccept inet_csk_accept' > kprobe_events +grep myprobeaccept kprobe_events +test -d events/kprobes/myprobeaccept +echo '-:myprobeaccept' >> kprobe_events + +# Test for kretprobe without event name without maxactive +echo 'r inet_csk_accept' > kprobe_events +grep inet_csk_accept kprobe_events +echo > kprobe_events + +# Test for kretprobe without event name with a small maxactive +echo 'r10 inet_csk_accept' > kprobe_events +grep inet_csk_accept kprobe_events +echo > kprobe_events + +clear_trace diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc new file mode 100644 index 000000000000..2a1cb9908746 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc @@ -0,0 +1,21 @@ +#!/bin/sh +# description: Register/unregister many kprobe events + +# ftrace fentry skip size depends on the machine architecture. +# Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le +case `uname -m` in + x86_64|i[3456]86) OFFS=5;; + ppc64le) OFFS=8;; + *) OFFS=0;; +esac + +echo "Setup up to 256 kprobes" +grep t /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \ +head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events ||: + +echo 1 > events/kprobes/enable +echo 0 > events/kprobes/enable +echo > kprobe_events +echo "Waiting for unoptimizing & freeing" +sleep 5 +echo "Done" diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc index 1a9445021bf1..c5435adfdd93 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event trigger - test event enable/disable trigger +# flags: instance do_reset() { reset_trigger diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc index 514e466e198b..48849a8d577f 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event trigger - test trigger filter +# flags: instance do_reset() { reset_trigger diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc index 400e98b64948..b7f86d10b549 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event trigger - test histogram modifiers +# flags: instance do_reset() { reset_trigger diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc index a00184cd9c95..fb66f7d9339d 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event trigger - test histogram trigger +# flags: instance do_reset() { reset_trigger diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc index 3478b00ead57..f9153087dd7c 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc @@ -1,5 +1,6 @@ #!/bin/sh # description: event trigger - test multiple histogram triggers +# flags: instance do_reset() { reset_trigger |
