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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: event trigger - test stacktrace-trigger
   4
   5 fail() { #msg
   6     echo $1
   7     exit_fail
   8 }
   9
  10 if [ ! -f set_event -o ! -d events/sched ]; then
  11     echo "event tracing is not supported"
  12     exit_unsupported
  13 fi
  14
  15 if [ ! -f events/sched/sched_process_fork/trigger ]; then
  16     echo "event trigger is not supported"
  17     exit_unsupported
  18 fi
  19
  20 FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`
  21 if [ -z "$FEATURE" ]; then
  22     echo "stacktrace trigger is not supported"
  23     exit_unsupported
  24 fi
  25
  26 echo "Test stacktrace tigger"
  27 echo 0 > trace
  28 echo 0 > options/stacktrace
  29 echo 'stacktrace' > events/sched/sched_process_fork/trigger
  30 ( echo "forked")
  31 grep "<stack trace>" trace > /dev/null || \
  32     fail "stacktrace trigger on sched_process_fork did not work"
  33
  34 reset_trigger
  35
  36 echo "Test stacktrace semantic errors"
  37
  38 ! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger
  39 echo "stacktrace" > events/sched/sched_process_fork/trigger
  40 ! echo "stacktrace" > events/sched/sched_process_fork/trigger
  41
  42 exit 0