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| author | Pratyush Anand <[email protected]> | 2016-01-29 10:50:28 +0530 |
|---|---|---|
| committer | Martin Schwidefsky <[email protected]> | 2016-02-10 09:25:22 +0100 |
| commit | e0115875c04548255212ebd7dbd90bdbe1257f48 (patch) | |
| tree | 8307d4f8acf99dce2cb7ed477fae77fa98dae449 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 66adce8f1f9f3bcd743a0e72c10aa850df8c5fa7 (diff) | |
s390/stacktrace: add save_stack_trace_regs()
Implement save_stack_trace_regs, so that a stack trace of a kprobe
event can be obtained.
Without this we see following warning:
"save_stack_trace_regs() not implemented yet."
when we execute:
echo stacktrace > /sys/kernel/debug/tracing/trace_options
echo "p kfree" >> /sys/kernel/debug/tracing/kprobe_events
echo 1 > /sys/kernel/debug/tracing/events/kprobes/enable
Reported-by: Chunyu Hu <[email protected]>
Signed-off-by: Pratyush Anand <[email protected]>
[[email protected]]: changed patch to use __save_stack_trace()
Signed-off-by: Heiko Carstens <[email protected]>
Tested-by: Peter Oberparleiter <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions