tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc

   1 #!/bin/sh
   2 # description: event trigger - test stacktrace-trigger
   3
   4 do_reset() {
   5     reset_trigger
   6     echo > set_event
   7     clear_trace
   8 }
   9
  10 fail() { #msg
  11     do_reset
  12     echo $1
  13     exit $FAIL
  14 }
  15
  16 if [ ! -f set_event -o ! -d events/sched ]; then
  17     echo "event tracing is not supported"
  18     exit_unsupported
  19 fi
  20
  21 if [ ! -f events/sched/sched_process_fork/trigger ]; then
  22     echo "event trigger is not supported"
  23     exit_unsupported
  24 fi
  25
  26 reset_tracer
  27 do_reset
  28
  29 FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`
  30 if [ -z "$FEATURE" ]; then
  31     echo "stacktrace trigger is not supported"
  32     exit_unsupported
  33 fi
  34
  35 echo "Test stacktrace tigger"
  36 echo 0 > trace
  37 echo 0 > options/stacktrace
  38 echo 'stacktrace' > events/sched/sched_process_fork/trigger
  39 ( echo "forked")
  40 grep "<stack trace>" trace > /dev/null || \
  41     fail "stacktrace trigger on sched_process_fork did not work"
  42
  43 reset_trigger
  44
  45 echo "Test stacktrace semantic errors"
  46
  47 ! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger
  48 echo "stacktrace" > events/sched/sched_process_fork/trigger
  49 ! echo "stacktrace" > events/sched/sched_process_fork/trigger
  50
  51 do_reset
  52
  53 exit 0