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Message-ID: <20090428132037.GA27519@Krystal>
Date: Tue, 28 Apr 2009 09:20:37 -0400
From: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To: Ingo Molnar <mingo@...e.hu>
Cc: linux-kernel@...r.kernel.org
Subject: LTTng "TIF_KERNEL_TRACE"
Hi Ingo,
Looking at the current -tip tree, I notice that the TIF_SYSCALL_FTRACE
flag is only implemented for x86.
I have TIF_KERNEL_TRACE in my lttng tree which applies to all
architectures to do the exact same thing :
lttng-kernel-trace-thread-flag-alpha.patch
lttng-kernel-trace-thread-flag-arm.patch
lttng-kernel-trace-thread-flag-avr32.patch
lttng-kernel-trace-thread-flag-blackfin.patch
lttng-kernel-trace-thread-flag-cris.patch
lttng-kernel-trace-thread-flag-frv.patch
lttng-kernel-trace-thread-flag-h8300.patch
lttng-kernel-trace-thread-flag-ia64.patch
lttng-kernel-trace-thread-flag-m32r.patch
lttng-kernel-trace-thread-flag-m68k.patch
lttng-kernel-trace-thread-flag-mips.patch
lttng-kernel-trace-thread-flag-parisc.patch
lttng-kernel-trace-thread-flag-powerpc.patch
lttng-kernel-trace-thread-flag-s390.patch
lttng-kernel-trace-thread-flag-sh.patch
lttng-kernel-trace-thread-flag-sparc.patch
lttng-kernel-trace-thread-flag-um.patch
lttng-kernel-trace-thread-flag-x86.patch
lttng-kernel-trace-thread-flag-xtensa.patch
lttng-kernel-trace-thread-flag-api.patch
Is there any way we could get this merged ?
One thing I like about the name TIF_KERNEL_TRACE compared to
TIF_SYSCALL_FTRACE is that it gives us a per-thread flag that could
eventually be used for more kernel tracing purposes than just syscalls.
Mathieu
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Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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