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 # Test if we successfully reject unknown messages
   9 if echo 'a:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
  10
  11 # Test if we successfully reject too big maxactive
  12 if echo 'r1000000:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
  13
  14 # Test if we successfully reject unparsable numbers for maxactive
  15 if echo 'r10fuzz:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
  16
  17 # Test for kretprobe with event name without maxactive
  18 echo 'r:myprobeaccept inet_csk_accept' > kprobe_events
  19 grep myprobeaccept kprobe_events
  20 test -d events/kprobes/myprobeaccept
  21 echo '-:myprobeaccept' >> kprobe_events
  22
  23 # Test for kretprobe with event name with a small maxactive
  24 echo 'r10:myprobeaccept inet_csk_accept' > kprobe_events
  25 grep myprobeaccept kprobe_events
  26 test -d events/kprobes/myprobeaccept
  27 echo '-:myprobeaccept' >> kprobe_events
  28
  29 # Test for kretprobe without event name without maxactive
  30 echo 'r inet_csk_accept' > kprobe_events
  31 grep inet_csk_accept kprobe_events
  32 echo > kprobe_events
  33
  34 # Test for kretprobe without event name with a small maxactive
  35 echo 'r10 inet_csk_accept' > kprobe_events
  36 grep inet_csk_accept kprobe_events
  37 echo > kprobe_events