diff options
Diffstat (limited to 'tools/testing/selftests/ftrace')
7 files changed, 183 insertions, 28 deletions
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index cce72f8b03dc..3230bd54dba8 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -22,6 +22,7 @@ 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" +echo " --rv Run RV selftests instead of ftrace ones" exit $1 } @@ -133,6 +134,10 @@ parse_opts() { # opts LINK_PTR= shift 2 ;; + --rv) + RV_TEST=1 + shift 1 + ;; *.tc) if [ -f "$1" ]; then OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`" @@ -152,9 +157,13 @@ parse_opts() { # opts ;; esac done - if [ ! -z "$OPT_TEST_CASES" ]; then + if [ -n "$OPT_TEST_CASES" ]; then TEST_CASES=$OPT_TEST_CASES fi + if [ -n "$OPT_TEST_DIR" -a -f "$OPT_TEST_DIR"/test.d/functions ]; then + TOP_DIR=$OPT_TEST_DIR + TEST_DIR=$TOP_DIR/test.d + fi } # Parameters @@ -190,10 +199,6 @@ 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 @@ -201,14 +206,23 @@ VERBOSE=0 UNSUPPORTED_RESULT=0 UNRESOLVED_RESULT=0 STOP_FAILURE=0 +RV_TEST=0 # Parse command-line options parse_opts $* +LOG_TOP_DIR=$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 + [ $DEBUG -ne 0 ] && set -x -# Verify parameters -if [ -z "$TRACING_DIR" -o ! -d "$TRACING_DIR" ]; then - errexit "No ftrace directory found" +if [ $RV_TEST -ne 0 ]; then + TRACING_DIR=$TRACING_DIR/rv + if [ ! -d "$TRACING_DIR" ]; then + err_ret=$err_skip + errexit "rv is not configured in this kernel" + fi fi # Preparing logs @@ -419,7 +433,7 @@ 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) + checkreq $1; initialize_system; . $1) [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID } @@ -496,7 +510,7 @@ for t in $TEST_CASES; do exit 1 fi done -(cd $TRACING_DIR; finish_ftrace) # for cleanup +(cd $TRACING_DIR; finish_system) # for cleanup prlog "" prlog "# of passed: " `echo $PASSED_CASES | wc -w` diff --git a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc index 8a7ce647a60d..318939451caf 100644 --- a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc +++ b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc @@ -28,7 +28,7 @@ unmount_tracefs() { local mount_point="$1" # Need to make sure the mount isn't busy so that we can umount it - (cd $mount_point; finish_ftrace;) + (cd $mount_point; finish_system;) cleanup } diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc new file mode 100644 index 000000000000..7daf7292209e --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc @@ -0,0 +1,107 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Basic tests on writing to trace_marker_raw +# requires: trace_marker_raw +# flags: instance + +is_little_endian() { + if lscpu | grep -q 'Little Endian'; then + echo 1; + else + echo 0; + fi +} + +little=`is_little_endian` + +make_str() { + id=$1 + cnt=$2 + + if [ $little -eq 1 ]; then + val=`printf "\\%03o\\%03o\\%03o\\%03o" \ + $(($id & 0xff)) \ + $((($id >> 8) & 0xff)) \ + $((($id >> 16) & 0xff)) \ + $((($id >> 24) & 0xff))` + else + val=`printf "\\%03o\\%03o\\%03o\\%03o" \ + $((($id >> 24) & 0xff)) \ + $((($id >> 16) & 0xff)) \ + $((($id >> 8) & 0xff)) \ + $(($id & 0xff))` + fi + + data=`printf -- 'X%.0s' $(seq $cnt)` + + printf "${val}${data}" +} + +write_buffer() { + id=$1 + size=$2 + + # write the string into the raw marker + make_str $id $size > trace_marker_raw +} + + +test_multiple_writes() { + + # Write a bunch of data where the id is the count of + # data to write + for i in `seq 1 10` `seq 101 110` `seq 1001 1010`; do + write_buffer $i $i + done + + # add a little buffer + echo stop > trace_marker + + # Check to make sure the number of entries is the id (rounded up by 4) + awk '/.*: # [0-9a-f]* / { + print; + cnt = -1; + for (i = 0; i < NF; i++) { + # The counter is after the "#" marker + if ( $i == "#" ) { + i++; + cnt = strtonum("0x" $i); + num = NF - (i + 1); + # The number of items is always rounded up by 4 + cnt2 = int((cnt + 3) / 4) * 4; + if (cnt2 != num) { + exit 1; + } + break; + } + } + } + // { if (NR > 30) { exit 0; } } ' trace_pipe; +} + + +get_buffer_data_size() { + sed -ne 's/^.*data.*size:\([0-9][0-9]*\).*/\1/p' events/header_page +} + +test_buffer() { + + # The id must be four bytes, test that 3 bytes fails a write + if echo -n abc > ./trace_marker_raw ; then + echo "Too small of write expected to fail but did not" + exit_fail + fi + + size=`get_buffer_data_size` + echo size = $size + + # Now add a little more than what it can handle + + if write_buffer 0xdeadbeef $size ; then + echo "Too big of write expected to fail but did not" + exit_fail + fi +} + +test_buffer +test_multiple_writes diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc index 2506f464811b..47067a5e3cb0 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc @@ -28,25 +28,21 @@ test -d events/fprobes/myevent1 test -d events/fprobes/myevent2 echo 1 > events/fprobes/myevent1/enable -# Make sure the event is attached and is the only one +# Make sure the event is attached. grep -q $PLACE enabled_functions cnt=`cat enabled_functions | wc -l` -if [ $cnt -ne $((ocnt + 1)) ]; then +if [ $cnt -eq $ocnt ]; then exit_fail fi echo 1 > events/fprobes/myevent2/enable -# It should till be the only attached function -cnt=`cat enabled_functions | wc -l` -if [ $cnt -ne $((ocnt + 1)) ]; then - exit_fail -fi +cnt2=`cat enabled_functions | wc -l` echo 1 > events/fprobes/myevent3/enable # If the function is different, the attached function should be increased grep -q $PLACE2 enabled_functions cnt=`cat enabled_functions | wc -l` -if [ $cnt -ne $((ocnt + 2)) ]; then +if [ $cnt -eq $cnt2 ]; then exit_fail fi @@ -56,12 +52,6 @@ echo "-:myevent2" >> dynamic_events grep -q myevent1 dynamic_events ! grep -q myevent2 dynamic_events -# should still have 2 left -cnt=`cat enabled_functions | wc -l` -if [ $cnt -ne $((ocnt + 2)) ]; then - exit_fail -fi - echo 0 > events/fprobes/enable echo > dynamic_events diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/enable_disable_tprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/enable_disable_tprobe.tc new file mode 100644 index 000000000000..c1f1cafa30f3 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/enable_disable_tprobe.tc @@ -0,0 +1,40 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - enable/disable tracepoint probe events +# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README + +echo 0 > events/enable +echo > dynamic_events + +TRACEPOINT=sched_switch +ENABLEFILE=events/tracepoints/myprobe/enable + +:;: "Add tracepoint event on $TRACEPOINT" ;: + +echo "t:myprobe ${TRACEPOINT}" >> dynamic_events + +:;: "Check enable/disable to ensure it works" ;: + +echo 1 > $ENABLEFILE + +grep -q $TRACEPOINT trace + +echo 0 > $ENABLEFILE + +echo > trace + +! grep -q $TRACEPOINT trace + +:;: "Repeat enable/disable to ensure it works" ;: + +echo 1 > $ENABLEFILE + +grep -q $TRACEPOINT trace + +echo 0 > $ENABLEFILE + +echo > trace + +! grep -q $TRACEPOINT trace + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc index c62165fabd0c..cfa16aa1f39a 100644 --- a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc +++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc @@ -20,6 +20,10 @@ sample_events() { echo 0 > tracing_on echo 0 > events/enable +# Clear functions caused by page cache; run sample_events twice +sample_events +sample_events + echo "Get the most frequently calling function" echo > trace sample_events diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index a1052bf460fc..e8e718139294 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -104,7 +104,7 @@ clear_dynamic_events() { # reset all current dynamic events done } -initialize_ftrace() { # Reset ftrace to initial-state +initialize_system() { # Reset ftrace to initial-state # As the initial state, ftrace will be set to nop tracer, # no events, no triggers, no filters, no function filters, # no probes, and tracing on. @@ -134,8 +134,8 @@ initialize_ftrace() { # Reset ftrace to initial-state enable_tracing } -finish_ftrace() { - initialize_ftrace +finish_system() { + initialize_system # And recover it to default. [ -f options/pause-on-trace ] && echo 0 > options/pause-on-trace } |