tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: trace_marker trigger - test snapshot trigger
   4 # flags: instance
   5
   6 fail() { #msg
   7     echo $1
   8     exit_fail
   9 }
  10
  11 if [ ! -f set_event ]; then
  12     echo "event tracing is not supported"
  13     exit_unsupported
  14 fi
  15
  16 if [ ! -f snapshot ]; then
  17     echo "snapshot is not supported"
  18     exit_unsupported
  19 fi
  20
  21 if [ ! -d events/ftrace/print ]; then
  22     echo "event trace_marker is not supported"
  23     exit_unsupported
  24 fi
  25
  26 if [ ! -f events/ftrace/print/trigger ]; then
  27     echo "event trigger is not supported"
  28     exit_unsupported
  29 fi
  30
  31 test_trace() {
  32     file=$1
  33     x=$2
  34
  35     cat $file | while read line; do
  36         comment=`echo $line | sed -e 's/^#//'`
  37         if [ "$line" != "$comment" ]; then
  38             continue
  39         fi
  40         echo "testing $line for >$x<"
  41         match=`echo $line | sed -e "s/>$x<//"`
  42         if [ "$line" = "$match" ]; then
  43             fail "$line does not have >$x< in it"
  44         fi
  45         x=$((x+2))
  46     done
  47 }
  48
  49 echo "Test snapshot trace_marker tigger"
  50
  51 echo 'snapshot' > events/ftrace/print/trigger
  52
  53 # make sure the snapshot is allocated
  54
  55 grep -q 'Snapshot is allocated' snapshot
  56
  57 for i in `seq 1 10` ; do echo "hello >$i<" > trace_marker; done
  58
  59 test_trace trace 1
  60 test_trace snapshot 2
  61
  62 exit 0