Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c3280952 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'ftracetest-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace 

Pull ftrace self-test updates from Steven Rostedt:
 "Updates for the ftrace self tests:

   - Added kprobes on ftrace testcase
   - Sort test cases
   - Add file to hold helper functions
   - Use logfile name supported by busybox's mktemp
   - Clear trace buffer after running kprobe test
   - Fix show descriptions when run on dash shell
   - Add --verbose option for showing echo output"

* tag 'ftracetest-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftracetest: Add --verbose option for showing echo output
  ftracetest: Fix to show descriptions on dash
  ftracetest: Add basic event tracing test cases
  ftracetest: Clear trace buffer after running kprobe testcases
  ftracetest: Use logfile name supported by busybox's mktemp
  ftracetest: Add a couple of ftrace test cases
  ftracetest: Add functions file that holds helper functions
  ftracetest: Sort testcases
  ftracetest: Add kprobes on ftrace testcase
parents 1dd7dcb6 57cee236

tools/testing/selftests/ftrace/ftracetest

+30 −13
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 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 Show all stdout messages in testcases"

echo "		-d|--debug Debug mode (trace all shell commands)"

exit $1

}
@@ -37,7 +38,7 @@ abspath() { 
}



find_testcases() { #directory

  echo `find $1 -name \*.tc`

  echo `find $1 -name \*.tc | sort`

}



parse_opts() { # opts
@@ -53,6 +54,10 @@ parse_opts() { # opts 
      KEEP_LOG=1

      shift 1

    ;;

    --verbose|-v)

      VERBOSE=1

      shift 1

    ;;

    --debug|-d)

      DEBUG=1

      shift 1
@@ -90,6 +95,7 @@ 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

# Parse command-line options

parse_opts $*
@@ -135,15 +141,12 @@ TOTAL_RESULT=0 
CASENO=0

testcase() { # testfile

  CASENO=$((CASENO+1))

  prlog -n "[$CASENO]"`grep "^#[ \t]*description:" $1 | cut -f2 -d:`

  desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`

  prlog -n "[$CASENO]$desc"

}



eval_result() { # retval sigval

  local retval=$2

  if [ $2 -eq 0 ]; then

    test $1 -ne 0 && retval=$FAIL

  fi

  case $retval in

eval_result() { # sigval

  case $1 in

    $PASS)

      prlog "	[PASS]"

      PASSED_CASES="$PASSED_CASES $CASENO"
@@ -187,6 +190,9 @@ SIG_RESULT= 
SIG_BASE=36	# Use realtime signals

SIG_PID=$$



SIG_FAIL=$((SIG_BASE + FAIL))

trap 'SIG_RESULT=$FAIL' $SIG_FAIL



SIG_UNRESOLVED=$((SIG_BASE + UNRESOLVED))

exit_unresolved () {

  kill -s $SIG_UNRESOLVED $SIG_PID
@@ -215,17 +221,25 @@ exit_xfail () { 
}

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; . $1)

  [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID

}



# Run one test case

run_test() { # testfile

  local testname=`basename $1`

  local testlog=`mktemp --tmpdir=$LOG_DIR ${testname}-XXXXXX.log`

  local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`

  testcase $1

  echo "execute: "$1 > $testlog

  SIG_RESULT=0

  # setup PID and PPID, $$ is not updated.

  (cd $TRACING_DIR; read PID _ < /proc/self/stat ;

   set -e; set -x; . $1) >> $testlog 2>&1

  eval_result $? $SIG_RESULT

  if [ $VERBOSE -ne 0 ]; 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 ] && rm $testlog
@@ -235,6 +249,9 @@ run_test() { # testfile 
  fi

}



# load in the helper functions

. $TEST_DIR/functions



# Main loop

for t in $TEST_CASES; do

  run_test $t

tools/testing/selftests/ftrace/test.d/00basic/basic4.tc

0 → 100644
+5 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: Basic event tracing check

test -f available_events -a -f set_event -a -d events

# check scheduler events are available

grep -q sched available_events && exit 0 || exit -1
 
 No newline at end of file

tools/testing/selftests/ftrace/test.d/event/event-enable.tc

0 → 100644
+53 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event tracing - enable/disable with event level files



do_reset() {

    echo > set_event

    clear_trace

}



fail() { #msg

    do_reset

    echo $1

    exit -1

}



if [ ! -f set_event -o ! -d events/sched ]; then

    echo "event tracing is not supported"

    exit_unsupported

fi



reset_tracer

do_reset



echo 'sched:sched_switch' > set_event

usleep 1



count=`cat trace | grep sched_switch | wc -l`

if [ $count -eq 0 ]; then

    fail "sched_switch events are not recorded"

fi



do_reset



echo 1 > events/sched/sched_switch/enable

usleep 1



count=`cat trace | grep sched_switch | wc -l`

if [ $count -eq 0 ]; then

    fail "sched_switch events are not recorded"

fi



do_reset



echo 0 > events/sched/sched_switch/enable

usleep 1



count=`cat trace | grep sched_switch | wc -l`

if [ $count -ne 0 ]; then

    fail "sched_switch events should not be recorded"

fi



do_reset



exit 0

tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc

0 → 100644
+53 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event tracing - enable/disable with subsystem level files



do_reset() {

    echo > set_event

    clear_trace

}



fail() { #msg

    do_reset

    echo $1

    exit -1

}



if [ ! -f set_event -o ! -d events/sched ]; then

    echo "event tracing is not supported"

    exit_unsupported

fi



reset_tracer

do_reset



echo 'sched:*' > set_event

usleep 1



count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`

if [ $count -lt 3 ]; then

    fail "at least fork, exec and exit events should be recorded"

fi



do_reset



echo 1 > events/sched/enable

usleep 1



count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`

if [ $count -lt 3 ]; then

    fail "at least fork, exec and exit events should be recorded"

fi



do_reset



echo 0 > events/sched/enable

usleep 1



count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`

if [ $count -ne 0 ]; then

    fail "any of scheduler events should not be recorded"

fi



do_reset



exit 0

tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc

0 → 100644
+47 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event tracing - enable/disable with top level files



do_reset() {

    echo > set_event

    clear_trace

}



fail() { #msg

    do_reset

    echo $1

    exit -1

}



if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then

    echo "event tracing is not supported"

    exit_unsupported

fi



reset_tracer

do_reset



echo '*:*' > set_event

count=`cat trace | grep -v ^# | wc -l`

if [ $count -eq 0 ]; then

    fail "none of events are recorded"

fi



do_reset



echo 1 > events/enable

count=`cat trace | grep -v ^# | wc -l`

if [ $count -eq 0 ]; then

    fail "none of events are recorded"

fi



do_reset



echo 0 > events/enable

count=`cat trace | grep -v ^# | wc -l`

if [ $count -ne 0 ]; then

    fail "any of events should not be recorded"

fi



do_reset



exit 0