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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 20:03:45 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 20:03:45 -0800 |
commit | c32809521de5b31699a33379183848b0c7628f28 (patch) | |
tree | 6879856f5a75059dfcb843a3449d1847be006ec2 /tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc | |
parent | Merge tag 'trace-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace (diff) | |
parent | ftracetest: Add --verbose option for showing echo output (diff) | |
download | linux-dev-c32809521de5b31699a33379183848b0c7628f28.tar.xz linux-dev-c32809521de5b31699a33379183848b0c7628f28.zip |
Merge tag 'ftracetest-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace self-test updates from Steven Rostedt:
"Updates for the ftrace self tests:
- Added kprobes on ftrace testcase
- Sort test cases
- Add file to hold helper functions
- Use logfile name supported by busybox's mktemp
- Clear trace buffer after running kprobe test
- Fix show descriptions when run on dash shell
- Add --verbose option for showing echo output"
* tag 'ftracetest-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftracetest: Add --verbose option for showing echo output
ftracetest: Fix to show descriptions on dash
ftracetest: Add basic event tracing test cases
ftracetest: Clear trace buffer after running kprobe testcases
ftracetest: Use logfile name supported by busybox's mktemp
ftracetest: Add a couple of ftrace test cases
ftracetest: Add functions file that holds helper functions
ftracetest: Sort testcases
ftracetest: Add kprobes on ftrace testcase
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc')
-rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc new file mode 100644 index 000000000000..ab41d2b29841 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc @@ -0,0 +1,55 @@ +#!/bin/sh +# description: Kprobe dynamic event with function tracer + +[ -f kprobe_events ] || exit_unsupported # this is configurable +grep function available_tracers || exit_unsupported # this is configurable + +# prepare +echo nop > current_tracer +echo do_fork > set_ftrace_filter +echo 0 > events/enable +echo > kprobe_events +echo 'p:testprobe do_fork' > kprobe_events + +# kprobe on / ftrace off +echo 1 > events/kprobes/testprobe/enable +echo > trace +( echo "forked") +grep testprobe trace +! grep 'do_fork <-' trace + +# kprobe on / ftrace on +echo function > current_tracer +echo > trace +( echo "forked") +grep testprobe trace +grep 'do_fork <-' trace + +# kprobe off / ftrace on +echo 0 > events/kprobes/testprobe/enable +echo > trace +( echo "forked") +! grep testprobe trace +grep 'do_fork <-' trace + +# kprobe on / ftrace on +echo 1 > events/kprobes/testprobe/enable +echo function > current_tracer +echo > trace +( echo "forked") +grep testprobe trace +grep 'do_fork <-' trace + +# kprobe on / ftrace off +echo nop > current_tracer +echo > trace +( echo "forked") +grep testprobe trace +! grep 'do_fork <-' trace + +# cleanup +echo nop > current_tracer +echo > set_ftrace_filter +echo 0 > events/kprobes/testprobe/enable +echo > kprobe_events +echo > trace |