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Kernel+LibC: Add support for filtering profiling events

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This adds the -t command-line argument for the profile tool. Using this
argument you can filter which event types you want in your profile.
This commit is contained in:
Gunnar Beutner 2021-05-14 08:10:43 +02:00 • committed by Andreas Kling
parent 8b2ace0326
commit 572bbf28cc
10 changed files with 72 additions and 33 deletions
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3
Kernel/PerformanceEventBuffer.cpp
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@ -60,6 +60,9 @@ KResult PerformanceEventBuffer::append_with_eip_and_ebp(ProcessID pid, ThreadID
if (count() >= capacity())
return ENOBUFS;
if ((g_profiling_event_mask & type) == 0)
return EINVAL;
PerformanceEvent event;
event.type = type;
event.lost_samples = lost_samples;