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| author | Andreas Kling <kling@serenityos.org> | 2020-02-02 20:26:27 +0100 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-02-02 20:26:27 +0100 |
| commit | 3879e5b9d454e08b301721ad3044f90d03026db3 (patch) | |
| tree | 7931babdd2127410ed93915d788ab3883144c156 /Kernel/Syscall.h | |
| parent | 25b635c841e209c7fd67be5406a941fa829f9bf2 (diff) | |
| download | serenity-3879e5b9d454e08b301721ad3044f90d03026db3.zip | |
Kernel: Start working on a syscall for logging performance events
This patch introduces sys$perf_event() with two event types:
- PERF_EVENT_MALLOC
- PERF_EVENT_FREE
After the first call to sys$perf_event(), a process will begin keeping
these events in a buffer. When the process dies, that buffer will be
written out to "perfcore" in the current directory unless that filename
is already taken.
This is probably not the best way to do this, but it's a start and will
make it possible to start doing memory allocation profiling. :^)
Diffstat (limited to 'Kernel/Syscall.h')
| -rw-r--r-- | Kernel/Syscall.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Kernel/Syscall.h b/Kernel/Syscall.h index a5541ab68c..19f755a99e 100644 --- a/Kernel/Syscall.h +++ b/Kernel/Syscall.h @@ -175,7 +175,8 @@ typedef u32 socklen_t; __ENUMERATE_SYSCALL(set_process_boost) \ __ENUMERATE_SYSCALL(chroot) \ __ENUMERATE_SYSCALL(pledge) \ - __ENUMERATE_SYSCALL(unveil) + __ENUMERATE_SYSCALL(unveil) \ + __ENUMERATE_SYSCALL(perf_event) namespace Syscall { |