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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kretprobe dynamic event with maxactive
   4
   5 [ -f kprobe_events ] || exit_unsupported # this is configurable
   6 grep -q 'r\[maxactive\]' README || exit_unsupported # this is older version
   7
   8 echo > kprobe_events
   9
  10 # Test if we successfully reject unknown messages
  11 if echo 'a:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
  12
  13 # Test if we successfully reject too big maxactive
  14 if echo 'r1000000:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
  15
  16 # Test if we successfully reject unparsable numbers for maxactive
  17 if echo 'r10fuzz:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
  18
  19 # Test for kretprobe with event name without maxactive
  20 echo 'r:myprobeaccept inet_csk_accept' > kprobe_events
  21 grep myprobeaccept kprobe_events
  22 test -d events/kprobes/myprobeaccept
  23 echo '-:myprobeaccept' >> kprobe_events
  24
  25 # Test for kretprobe with event name with a small maxactive
  26 echo 'r10:myprobeaccept inet_csk_accept' > kprobe_events
  27 grep myprobeaccept kprobe_events
  28 test -d events/kprobes/myprobeaccept
  29 echo '-:myprobeaccept' >> kprobe_events
  30
  31 # Test for kretprobe without event name without maxactive
  32 echo 'r inet_csk_accept' > kprobe_events
  33 grep inet_csk_accept kprobe_events
  34 echo > kprobe_events
  35
  36 # Test for kretprobe without event name with a small maxactive
  37 echo 'r10 inet_csk_accept' > kprobe_events
  38 grep inet_csk_accept kprobe_events
  39 echo > kprobe_events
  40
  41 clear_trace