LTTng "TIF_KERNEL_TRACE"

Mathieu Desnoyers
2009-04-28T13:20:51Z

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
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