Messages in this thread Patch in this message | | | Date | Sun, 15 Mar 2009 16:02:00 -0400 | From | Mathieu Desnoyers <> | Subject | [RFC patch 16/20] LTTng Kernel Trace Thread Flag sparc |
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Add a thread flag to activate system-wide syscall tracing.
Folded lttng-kernel-trace-thread-flag-sparc64.patch.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> --- arch/sparc/include/asm/thread_info_32.h | 2 ++ arch/sparc/include/asm/thread_info_64.h | 3 ++- arch/sparc/kernel/entry.S | 8 ++++---- 3 files changed, 8 insertions(+), 5 deletions(-)
Index: linux-2.6-lttng/arch/sparc/include/asm/thread_info_32.h =================================================================== --- linux-2.6-lttng.orig/arch/sparc/include/asm/thread_info_32.h 2009-03-15 15:57:04.000000000 -0400 +++ linux-2.6-lttng/arch/sparc/include/asm/thread_info_32.h 2009-03-15 15:57:18.000000000 -0400 @@ -130,6 +130,7 @@ BTFIXUPDEF_CALL(void, free_thread_info, #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ #define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */ +#define TIF_KERNEL_TRACE 5 /* kernel trace active */ #define TIF_USEDFPU 8 /* FPU was used by this task * this quantum (SMP) */ #define TIF_POLLING_NRFLAG 9 /* true if poll_idle() is polling @@ -139,6 +140,7 @@ BTFIXUPDEF_CALL(void, free_thread_info, /* as above, but as bit values */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) +#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) Index: linux-2.6-lttng/arch/sparc/kernel/entry.S =================================================================== --- linux-2.6-lttng.orig/arch/sparc/kernel/entry.S 2009-03-15 15:57:04.000000000 -0400 +++ linux-2.6-lttng/arch/sparc/kernel/entry.S 2009-03-15 15:57:18.000000000 -0400 @@ -1118,7 +1118,7 @@ sys_sigreturn: add %sp, STACKFRAME_SZ, %o0 ld [%curptr + TI_FLAGS], %l5 - andcc %l5, _TIF_SYSCALL_TRACE, %g0 + andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0 be 1f nop @@ -1138,7 +1138,7 @@ sys_rt_sigreturn: add %sp, STACKFRAME_SZ, %o0 ld [%curptr + TI_FLAGS], %l5 - andcc %l5, _TIF_SYSCALL_TRACE, %g0 + andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0 be 1f nop @@ -1280,7 +1280,7 @@ syscall_is_too_hard: ld [%curptr + TI_FLAGS], %l5 mov %i3, %o3 - andcc %l5, _TIF_SYSCALL_TRACE, %g0 + andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0 mov %i4, %o4 bne linux_syscall_trace mov %i0, %l5 @@ -1297,7 +1297,7 @@ ret_sys_call: ld [%sp + STACKFRAME_SZ + PT_PSR], %g3 set PSR_C, %g2 bgeu 1f - andcc %l6, _TIF_SYSCALL_TRACE, %g0 + andcc %l6, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0 /* System call success, clear Carry condition code. */ andn %g3, %g2, %g3 Index: linux-2.6-lttng/arch/sparc/include/asm/thread_info_64.h =================================================================== --- linux-2.6-lttng.orig/arch/sparc/include/asm/thread_info_64.h 2009-03-15 15:57:04.000000000 -0400 +++ linux-2.6-lttng/arch/sparc/include/asm/thread_info_64.h 2009-03-15 15:57:18.000000000 -0400 @@ -226,7 +226,7 @@ register struct thread_info *current_thr #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */ /* flag bit 6 is available */ #define TIF_32BIT 7 /* 32-bit binary */ -/* flag bit 8 is available */ +#define TIF_KERNEL_TRACE 8 /* kernel trace active */ #define TIF_SECCOMP 9 /* secure computing */ #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */ /* flag bit 11 is available */ @@ -246,6 +246,7 @@ register struct thread_info *current_thr #define _TIF_PERFCTR (1<<TIF_PERFCTR) #define _TIF_UNALIGNED (1<<TIF_UNALIGNED) #define _TIF_32BIT (1<<TIF_32BIT) +#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE) #define _TIF_SECCOMP (1<<TIF_SECCOMP) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) #define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING) -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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