[RFC patch 19/20] LTTng Kernel Trace Thread Flag xtensa

Mathieu Desnoyers
2009-03-15T20:31:48Z

[-- Attachment #1: lttng-kernel-trace-thread-flag-xtensa.patch --]
[-- Type: text/plain, Size: 1685 bytes --]

Add a thread flag to activate system-wide syscall tracing.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/xtensa/include/asm/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux-2.6-lttng/arch/xtensa/include/asm/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/arch/xtensa/include/asm/thread_info.h 2009-03-15 15:51:26.000000000 -0400
+++ linux-2.6-lttng/arch/xtensa/include/asm/thread_info.h 2009-03-15 15:57:21.000000000 -0400
@@ -133,6 +133,7 @@ static inline struct thread_info *curren
#define TIF_IRET 4 /* return with iret */
#define TIF_MEMDIE 5
#define TIF_RESTORE_SIGMASK 6 /* restore signal mask in do_signal() */
+#define TIF_KERNEL_TRACE 7 /* kernel trace active */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_FREEZE 17 /* is freezing for suspend */

@@ -141,11 +142,12 @@ static inline struct thread_info *curren
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
#define _TIF_IRET (1<<TIF_IRET)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_FREEZE (1<<TIF_FREEZE)

-#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK 0x0000FF7E /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */

/*