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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: event tracing - enable/disable with subsystem level files
   4 # requires: set_event events/sched/enable
   5 # flags: instance
   6
   7 do_reset() {
   8     echo > set_event
   9     clear_trace
  10 }
  11
  12 fail() { #msg
  13     echo $1
  14     exit_fail
  15 }
  16
  17 echo 'sched:*' > set_event
  18
  19 yield
  20
  21 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
  22 if [ $count -lt 3 ]; then
  23     fail "at least fork, exec and exit events should be recorded"
  24 fi
  25
  26 do_reset
  27
  28 echo 1 > events/sched/enable
  29
  30 yield
  31
  32 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
  33 if [ $count -lt 3 ]; then
  34     fail "at least fork, exec and exit events should be recorded"
  35 fi
  36
  37 do_reset
  38
  39 echo 0 > events/sched/enable
  40
  41 yield
  42
  43 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
  44 if [ $count -ne 0 ]; then
  45     fail "any of scheduler events should not be recorded"
  46 fi
  47
  48 exit 0