Messages in this thread Patch in this message | | | Date | Sun, 15 Mar 2009 16:01:55 -0400 | From | Mathieu Desnoyers <> | Subject | [RFC patch 11/20] LTTng Kernel Trace Thread Flag MIPS |
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Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> --- arch/mips/include/asm/thread_info.h | 4 +++- arch/mips/kernel/entry.S | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-)
Index: linux-2.6-lttng/arch/mips/include/asm/thread_info.h =================================================================== --- linux-2.6-lttng.orig/arch/mips/include/asm/thread_info.h 2009-03-15 15:57:05.000000000 -0400 +++ linux-2.6-lttng/arch/mips/include/asm/thread_info.h 2009-03-15 15:57:16.000000000 -0400 @@ -125,9 +125,11 @@ register struct thread_info *__current_t #define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */ #define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */ #define TIF_LOAD_WATCH 25 /* If set, load watch registers */ +#define TIF_KERNEL_TRACE 30 /* kernel trace active */ #define TIF_SYSCALL_TRACE 31 /* syscall trace active */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) +#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) @@ -146,7 +148,7 @@ register struct thread_info *__current_t /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK (0x0000ffef & ~_TIF_SECCOMP) /* work to do on any return to u-space */ -#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP) +#define _TIF_ALLWORK_MASK (0xc000ffff & ~_TIF_SECCOMP) #endif /* __KERNEL__ */ Index: linux-2.6-lttng/arch/mips/kernel/entry.S =================================================================== --- linux-2.6-lttng.orig/arch/mips/kernel/entry.S 2009-03-15 15:57:05.000000000 -0400 +++ linux-2.6-lttng/arch/mips/kernel/entry.S 2009-03-15 15:57:16.000000000 -0400 @@ -167,7 +167,7 @@ work_notifysig: # deal with pending s FEXPORT(syscall_exit_work_partial) SAVE_STATIC syscall_exit_work: - li t0, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT + li t0, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_KERNEL_TRACE and t0, a2 # a2 is preloaded with TI_FLAGS beqz t0, work_pending # trace bit set? local_irq_enable # could let do_syscall_trace() -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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