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    Subject[patch-early-RFC 07/10] LTTng instrumentation SH64
    traps are missing.
    syscall trace missing.

    Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
    ---
    arch/sh64/kernel/entry.S | 2 +-
    arch/sh64/kernel/process.c | 5 ++++-
    arch/sh64/kernel/sys_sh64.c | 2 ++
    3 files changed, 7 insertions(+), 2 deletions(-)

    Index: linux-2.6-lttng/arch/sh64/kernel/entry.S
    ===================================================================
    --- linux-2.6-lttng.orig/arch/sh64/kernel/entry.S 2007-11-13 09:25:23.000000000 -0500
    +++ linux-2.6-lttng/arch/sh64/kernel/entry.S 2007-11-13 09:50:15.000000000 -0500
    @@ -1282,7 +1282,7 @@ syscall_allowed:

    getcon KCR0, r2
    ld.l r2, TI_FLAGS, r4
    - movi (1 << TIF_SYSCALL_TRACE), r6
    + movi (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), r6
    and r6, r4, r6
    beq/l r6, ZERO, tr0

    Index: linux-2.6-lttng/arch/sh64/kernel/sys_sh64.c
    ===================================================================
    --- linux-2.6-lttng.orig/arch/sh64/kernel/sys_sh64.c 2007-11-13 09:25:23.000000000 -0500
    +++ linux-2.6-lttng/arch/sh64/kernel/sys_sh64.c 2007-11-13 09:50:15.000000000 -0500
    @@ -187,6 +187,8 @@ asmlinkage int sys_ipc(uint call, int fi
    version = call >> 16; /* hack for backward compatibility */
    call &= 0xffff;

    + trace_mark(kernel_arch_ipc_call, "call %u first %d", call, first);
    +
    if (call <= SEMCTL)
    switch (call) {
    case SEMOP:
    Index: linux-2.6-lttng/arch/sh64/kernel/process.c
    ===================================================================
    --- linux-2.6-lttng.orig/arch/sh64/kernel/process.c 2007-11-13 09:25:23.000000000 -0500
    +++ linux-2.6-lttng/arch/sh64/kernel/process.c 2007-11-13 09:50:15.000000000 -0500
    @@ -393,6 +393,7 @@ ATTRIB_NORET void kernel_thread_helper(v
    */
    int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
    {
    + unsigned long pid;
    struct pt_regs regs;

    memset(&regs, 0, sizeof(regs));
    @@ -402,8 +403,10 @@ int kernel_thread(int (*fn)(void *), voi
    regs.pc = (unsigned long)kernel_thread_helper;
    regs.sr = (1 << 30);

    - return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
    + pid = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
    &regs, 0, NULL, NULL);
    + trace_mark(kernel_arch_kthread_create, "pid %ld fn %p", pid, fn);
    + return pid;
    }

    /*
    --
    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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