[RFC patch 09/20] LTTng Kernel Trace Thread Flag m32r

Mathieu Desnoyers
2009-05-09T16:49:25Z

[-- Attachment #1: lttng-kernel-trace-thread-flag-m32r.patch --]
[-- Type: text/plain, Size: 2014 bytes --]

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

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/m32r/include/asm/thread_info.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

Index: linux-2.6-lttng/arch/m32r/include/asm/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/arch/m32r/include/asm/thread_info.h 2009-05-09 11:39:23.000000000 -0400
+++ linux-2.6-lttng/arch/m32r/include/asm/thread_info.h 2009-05-09 11:40:38.000000000 -0400
@@ -151,6 +151,7 @@ static inline unsigned int get_thread_fa
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
#define TIF_SINGLESTEP 3 /* restore singlestep on return to user mode */
#define TIF_IRET 4 /* return with iret */
+#define TIF_KERNEL_TRACE 5 /* kernel trace active */
#define TIF_RESTORE_SIGMASK 8 /* restore signal mask in do_signal() */
#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */
@@ -162,13 +163,17 @@ static inline unsigned int get_thread_fa
#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_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_FREEZE (1<<TIF_FREEZE)

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

/*
* Thread-synchronous status.