tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kprobe dynamic event with arguments
   4
   5 [ -f kprobe_events ] || exit_unsupported # this is configurable
   6
   7 echo 'p:testprobe _do_fork $stack $stack0 +0($stack)' > kprobe_events
   8 grep testprobe kprobe_events | grep -q 'arg1=\$stack arg2=\$stack0 arg3=+0(\$stack)'
   9 test -d events/kprobes/testprobe
  10
  11 echo 1 > events/kprobes/testprobe/enable
  12 ( echo "forked")
  13 grep testprobe trace | grep '_do_fork' | \
  14   grep -q 'arg1=0x[[:xdigit:]]* arg2=0x[[:xdigit:]]* arg3=0x[[:xdigit:]]*$'
  15
  16 echo 0 > events/kprobes/testprobe/enable
  17 echo "-:testprobe" >> kprobe_events
  18 clear_trace
  19 test -d events/kprobes/testprobe && exit_fail || exit_pass
  20