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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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2
Userland/DevTools/Profiler/main.cpp
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@ -280,7 +280,7 @@ bool generate_profile(pid_t& pid)
process_name = "(unknown)";
}
if (profiling_enable(pid) < 0) {
if (profiling_enable(pid, PERF_EVENT_MASK_ALL) < 0) {
int saved_errno = errno;
GUI::MessageBox::show(nullptr, String::formatted("Unable to profile process {}({}): {}", process_name, pid, strerror(saved_errno)), "Profiler", GUI::MessageBox::Type::Error);
return false;