Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <[EMAIL PROTECTED]>
CC: Thomas Gleixner <[EMAIL PROTECTED]>
CC: Ingo Molnar <[EMAIL PROTECTED]>
CC: H. Peter Anvin <[EMAIL PROTECTED]>
---
include/asm-i386/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-x86/thread_info_32.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86/thread_info_32.h 2007-07-30
19:41:44.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86/thread_info_32.h 2007-07-30
20:07:03.000000000 -0400
@@ -132,6 +132,7 @@ static inline struct thread_info *curren
#define TIF_SYSCALL_AUDIT 6 /* syscall auditing active */
#define TIF_SECCOMP 7 /* secure computing */
#define TIF_RESTORE_SIGMASK 8 /* restore signal mask in do_signal() */
+#define TIF_KERNEL_TRACE 9 /* kernel trace active */
#define TIF_MEMDIE 16
#define TIF_DEBUG 17 /* uses debug registers */
#define TIF_IO_BITMAP 18 /* uses I/O bitmap */
@@ -147,6 +148,7 @@ static inline struct thread_info *curren
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_DEBUG (1<<TIF_DEBUG)
#define _TIF_IO_BITMAP (1<<TIF_IO_BITMAP)
#define _TIF_FREEZE (1<<TIF_FREEZE)
@@ -154,7 +156,7 @@ static inline struct thread_info *curren
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK \
- (0x0000FFFF & ~(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
+ (0x0000FFFF & ~(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_KERNEL_TRACE
|\
_TIF_SECCOMP | _TIF_SYSCALL_EMU))
/* work to do on any return to u-space */
#define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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