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    Subject[patch-RFC 05/26] LTTng Kernel Trace Thread Flag Cris
    Add a thread flag to activate system-wide syscall tracing.

    Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
    ---
    include/asm-cris/thread_info.h | 9 +++++++--
    1 file changed, 7 insertions(+), 2 deletions(-)

    Index: linux-2.6-lttng/include/asm-cris/thread_info.h
    ===================================================================
    --- linux-2.6-lttng.orig/include/asm-cris/thread_info.h 2007-11-15 21:18:41.000000000 -0500
    +++ linux-2.6-lttng/include/asm-cris/thread_info.h 2007-11-15 21:32:07.000000000 -0500
    @@ -83,6 +83,7 @@ struct thread_info {
    #define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
    #define TIF_SIGPENDING 2 /* signal pending */
    #define TIF_NEED_RESCHED 3 /* rescheduling necessary */
    +#define TIF_KERNEL_TRACE 4 /* kernel trace active */
    #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
    #define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
    #define TIF_MEMDIE 17
    @@ -91,11 +92,15 @@ struct thread_info {
    #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
    #define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
    #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
    +#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
    #define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
    #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)

    -#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
    -#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
    +/* work to do on interrupt/exception return */
    +#define _TIF_WORK_MASK 0x0000FFFF & \
    + (~_TIF_SYSCALL_TRACE | ~_TIF_KERNEL_TRACE)
    +/* work to do on any return to u-space */
    +#define _TIF_ALLWORK_MASK 0x0000FFFF

    #endif /* __KERNEL__ */

    --
    Mathieu Desnoyers
    Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
    OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68


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