[RFC patch 02/21] LTTng Kernel Trace Thread Flag ARM

Mathieu Desnoyers
2009-03-15T19:34:29Z

[-- Attachment #1: lttng-kernel-trace-thread-flag-arm.patch --]
[-- Type: text/plain, Size: 1565 bytes --]

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

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

Index: linux-2.6-lttng/arch/arm/include/asm/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/arch/arm/include/asm/thread_info.h 2009-01-09 18:15:55.000000000 -0500
+++ linux-2.6-lttng/arch/arm/include/asm/thread_info.h 2009-01-09 18:17:45.000000000 -0500
@@ -124,6 +124,7 @@ extern void iwmmxt_task_switch(struct th
/*
* thread information flags:
* TIF_SYSCALL_TRACE - syscall trace active
+ * TIF_KERNEL_TRACE - kernel trace active
* TIF_SIGPENDING - signal pending
* TIF_NEED_RESCHED - rescheduling necessary
* TIF_USEDFPU - FPU was used by this task this quantum (SMP)
@@ -131,6 +132,7 @@ extern void iwmmxt_task_switch(struct th
*/
#define TIF_SIGPENDING 0
#define TIF_NEED_RESCHED 1
+#define TIF_KERNEL_TRACE 7
#define TIF_SYSCALL_TRACE 8
#define TIF_POLLING_NRFLAG 16
#define TIF_USING_IWMMXT 17
@@ -139,6 +141,7 @@ extern void iwmmxt_task_switch(struct th

#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)