* [patch-RFC 01/26] LTTng Kernel Trace Thread Flag Alpha
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 02/26] LTTng Kernel Trace Thread Flag ARM Mathieu Desnoyers
` (25 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-alpha.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>
---
include/asm-alpha/thread_info.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Index: linux-2.6-lttng/include/asm-alpha/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-alpha/thread_info.h 2007-11-13 09:25:26.000000000 -0500
+++ linux-2.6-lttng/include/asm-alpha/thread_info.h 2007-11-13 09:49:39.000000000 -0500
@@ -76,19 +76,21 @@ register struct thread_info *__current_t
#define TIF_UAC_SIGBUS 7
#define TIF_MEMDIE 8
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal */
+#define TIF_KERNEL_TRACE 10 /* Kernel tracing of syscalls */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
/* Work to do on interrupt/exception return. */
#define _TIF_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED)
/* Work to do on any return to userspace. */
-#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \
- | _TIF_SYSCALL_TRACE)
+#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \
+ | _TIF_SYSCALL_TRACE | _TIF_KERNEL_TRACE)
#define ALPHA_UAC_SHIFT 6
#define ALPHA_UAC_MASK (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 02/26] LTTng Kernel Trace Thread Flag ARM
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 01/26] LTTng Kernel Trace Thread Flag Alpha Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 03/26] LTTng Kernel Trace Thread Flag AVR32 Mathieu Desnoyers
` (24 subsequent siblings)
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From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-arm.patch --]
[-- Type: text/plain, Size: 1613 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-arm/thread_info.h | 3 +++
1 file changed, 3 insertions(+)
Index: linux-2.6-lttng/include/asm-arm/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-arm/thread_info.h 2007-09-04 11:50:11.000000000 -0400
+++ linux-2.6-lttng/include/asm-arm/thread_info.h 2007-09-04 12:19:51.000000000 -0400
@@ -134,6 +134,7 @@ 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)
@@ -141,6 +142,7 @@ 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
@@ -149,6 +151,7 @@ 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)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 03/26] LTTng Kernel Trace Thread Flag AVR32
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 01/26] LTTng Kernel Trace Thread Flag Alpha Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 02/26] LTTng Kernel Trace Thread Flag ARM Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 04/26] LTTng Kernel Trace Thread Flag Blackfin Mathieu Desnoyers
` (23 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-avr32.patch --]
[-- Type: text/plain, Size: 1726 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-avr32/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-avr32/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-avr32/thread_info.h 2007-07-30 18:49:43.000000000 -0400
+++ linux-2.6-lttng/include/asm-avr32/thread_info.h 2007-07-30 18:59:15.000000000 -0400
@@ -83,6 +83,7 @@ static inline struct thread_info *curren
#define TIF_MEMDIE 6
#define TIF_RESTORE_SIGMASK 7 /* restore signal mask in do_signal */
#define TIF_CPU_GOING_TO_SLEEP 8 /* CPU is entering sleep 0 mode */
+#define TIF_KERNEL_TRACE 9 /* kernel trace active */
#define TIF_USERSPACE 31 /* true if FS sets userspace */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
@@ -94,12 +95,13 @@ static inline struct thread_info *curren
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
/* XXX: These two masks must never span more than 16 bits! */
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK 0x0000013e
/* work to do on any return to userspace */
-#define _TIF_ALLWORK_MASK 0x0000013f
+#define _TIF_ALLWORK_MASK 0x0000033f
/* work to do on return from debug mode */
#define _TIF_DBGWORK_MASK 0x0000017e
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 04/26] LTTng Kernel Trace Thread Flag Blackfin
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (2 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 03/26] LTTng Kernel Trace Thread Flag AVR32 Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 05/26] LTTng Kernel Trace Thread Flag Cris Mathieu Desnoyers
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26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-blackfin.patch --]
[-- Type: text/plain, Size: 1553 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-blackfin/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-blackfin/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-blackfin/thread_info.h 2007-07-30 18:49:43.000000000 -0400
+++ linux-2.6-lttng/include/asm-blackfin/thread_info.h 2007-07-30 19:01:13.000000000 -0400
@@ -125,6 +125,7 @@ static inline struct thread_info *curren
#define TIF_MEMDIE 4
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
#define TIF_FREEZE 6 /* is freezing for suspend */
+#define TIF_KERNEL_TRACE 7 /* kernel trace active */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -133,8 +134,9 @@ static inline struct thread_info *curren
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_FREEZE (1<<TIF_FREEZE)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
-#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK 0x0000FF7E /* work to do on interrupt/exception return */
#endif /* __KERNEL__ */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 05/26] LTTng Kernel Trace Thread Flag Cris
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (3 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 04/26] LTTng Kernel Trace Thread Flag Blackfin Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 06/26] LTTng Kernel Trace Thread Flag Frv Mathieu Desnoyers
` (21 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-cris.patch --]
[-- Type: text/plain, Size: 1896 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-cris/thread_info.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
Index: linux-2.6-lttng/include/asm-cris/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-cris/thread_info.h 2007-11-15 21:18:41.000000000 -0500
+++ linux-2.6-lttng/include/asm-cris/thread_info.h 2007-11-15 21:32:07.000000000 -0500
@@ -83,6 +83,7 @@ struct thread_info {
#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
+#define TIF_KERNEL_TRACE 4 /* kernel trace active */
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17
@@ -91,11 +92,15 @@ struct thread_info {
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
-#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 interrupt/exception return */
+#define _TIF_WORK_MASK 0x0000FFFF & \
+ (~_TIF_SYSCALL_TRACE | ~_TIF_KERNEL_TRACE)
+/* work to do on any return to u-space */
+#define _TIF_ALLWORK_MASK 0x0000FFFF
#endif /* __KERNEL__ */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 06/26] LTTng Kernel Trace Thread Flag Frv
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (4 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 05/26] LTTng Kernel Trace Thread Flag Cris Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 07/26] LTTng Kernel Trace Thread Flag H8300 Mathieu Desnoyers
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26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-frv.patch --]
[-- Type: text/plain, Size: 1787 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-frv/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-frv/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-frv/thread_info.h 2007-09-04 11:52:56.000000000 -0400
+++ linux-2.6-lttng/include/asm-frv/thread_info.h 2007-09-04 12:19:57.000000000 -0400
@@ -112,6 +112,7 @@ register struct thread_info *__current_t
#define TIF_SINGLESTEP 3 /* restore singlestep on return to user mode */
#define TIF_IRET 4 /* return with iret */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
+#define TIF_KERNEL_TRACE 6 /* kernel trace active */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17 /* OOM killer killed process */
#define TIF_FREEZE 18 /* freezing for suspend */
@@ -122,10 +123,11 @@ register struct thread_info *__current_t
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
#define _TIF_IRET (1 << TIF_IRET)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
#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_WORK_MASK 0x0000FFBE /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
/*
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 07/26] LTTng Kernel Trace Thread Flag H8300
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (5 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 06/26] LTTng Kernel Trace Thread Flag Frv Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 08/26] LTTng Linux Kernel Trace Thread Flags x86_32 Mathieu Desnoyers
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26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-h8300.patch --]
[-- Type: text/plain, Size: 1481 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-h8300/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-h8300/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-h8300/thread_info.h 2007-08-07 11:03:21.000000000 -0400
+++ linux-2.6-lttng/include/asm-h8300/thread_info.h 2007-08-07 11:47:27.000000000 -0400
@@ -92,6 +92,7 @@ static inline struct thread_info *curren
TIF_NEED_RESCHED */
#define TIF_MEMDIE 4
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
+#define TIF_KERNEL_TRACE 6 /* kernel trace active */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -99,8 +100,9 @@ static inline struct thread_info *curren
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
-#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK 0x0000FFBE /* work to do on interrupt/exception return */
#endif /* __KERNEL__ */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 08/26] LTTng Linux Kernel Trace Thread Flags x86_32
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
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2007-12-06 2:42 ` [patch-RFC 07/26] LTTng Kernel Trace Thread Flag H8300 Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 09/26] LTTng Kernel Trace Thread Flag ia64 Mathieu Desnoyers
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From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel
Cc: Mathieu Desnoyers, Thomas Gleixner, Ingo Molnar, H. Peter Anvin
[-- Attachment #1: lttng-kernel-trace-thread-flag-i386.patch --]
[-- Type: text/plain, Size: 2016 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: H. Peter Anvin <hpa@zytor.com>
---
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
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 09/26] LTTng Kernel Trace Thread Flag ia64
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (7 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 08/26] LTTng Linux Kernel Trace Thread Flags x86_32 Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 10/26] LTTng Kernel Trace Thread Flag m32r Mathieu Desnoyers
` (17 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-ia64.patch --]
[-- Type: text/plain, Size: 3131 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/ia64/kernel/entry.S | 6 ++++--
include/asm-ia64/thread_info.h | 13 +++++++++----
2 files changed, 13 insertions(+), 6 deletions(-)
Index: linux-2.6-lttng/include/asm-ia64/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-ia64/thread_info.h 2007-11-20 10:43:04.000000000 -0500
+++ linux-2.6-lttng/include/asm-ia64/thread_info.h 2007-11-20 10:43:28.000000000 -0500
@@ -86,6 +86,7 @@
#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
#define TIF_PERFMON_WORK 6 /* work for pfm_handle_work() */
+#define TIF_KERNEL_TRACE 7 /* kernel trace active */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17
#define TIF_MCA_INIT 18 /* this task is processing MCA or INIT */
@@ -95,7 +96,8 @@
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
-#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
+#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP|_TIF_KERNEL_TRACE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_PERFMON_WORK (1 << TIF_PERFMON_WORK)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -108,9 +110,12 @@
/* "work to do on user-return" bits */
#define TIF_ALLWORK_MASK (_TIF_SIGPENDING|_TIF_PERFMON_WORK|_TIF_SYSCALL_AUDIT|\
_TIF_NEED_RESCHED| _TIF_SYSCALL_TRACE|\
- _TIF_RESTORE_SIGMASK)
-/* like TIF_ALLWORK_BITS but sans TIF_SYSCALL_TRACE or TIF_SYSCALL_AUDIT */
-#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))
+ _TIF_RESTORE_SIGMASK|_TIF_KERNEL_TRACE)
+/*
+ * like TIF_ALLWORK_BITS but sans TIF_SYSCALL_TRACE, TIF_KERNEL_TRACE
+ * or TIF_SYSCALL_AUDIT
+ */
+#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_KERNEL_TRACE))
#define TS_POLLING 1 /* true if in idle loop and not sleeping */
Index: linux-2.6-lttng/arch/ia64/kernel/entry.S
===================================================================
--- linux-2.6-lttng.orig/arch/ia64/kernel/entry.S 2007-11-20 10:43:04.000000000 -0500
+++ linux-2.6-lttng/arch/ia64/kernel/entry.S 2007-11-20 10:50:48.000000000 -0500
@@ -621,9 +621,11 @@
;;
ld4 r2=[r2]
;;
+ movl r8=_TIF_SYSCALL_TRACEAUDIT
+ ;; // added stop bits to prevent r8 dependency
+ and r2=r8,r2
mov r8=0
- and r2=_TIF_SYSCALL_TRACEAUDIT,r2
- ;;
+ ;; // added stop bits to prevent r2 dependency
cmp.ne p6,p0=r2,r0
(p6) br.cond.spnt .strace_check_retval
;; // added stop bits to prevent r8 dependency
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 10/26] LTTng Kernel Trace Thread Flag m32r
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (8 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 09/26] LTTng Kernel Trace Thread Flag ia64 Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 11/26] LTTng Kernel Trace Thread Flag m68k Mathieu Desnoyers
` (16 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-m32r.patch --]
[-- Type: text/plain, Size: 2062 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-m32r/thread_info.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
Index: linux-2.6-lttng/include/asm-m32r/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-m32r/thread_info.h 2007-11-28 08:40:56.000000000 -0500
+++ linux-2.6-lttng/include/asm-m32r/thread_info.h 2007-11-28 08:47:42.000000000 -0500
@@ -149,6 +149,7 @@ 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 */
@@ -160,13 +161,17 @@ 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.
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 11/26] LTTng Kernel Trace Thread Flag m68k
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (9 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 10/26] LTTng Kernel Trace Thread Flag m32r Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 12/26] LTTng Kernel Trace Thread Flag m68knommu Mathieu Desnoyers
` (15 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-m68k.patch --]
[-- Type: text/plain, Size: 1013 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-m68k/thread_info.h | 1 +
1 file changed, 1 insertion(+)
Index: linux-2.6-lttng/include/asm-m68k/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-m68k/thread_info.h 2007-07-30 18:14:49.000000000 -0400
+++ linux-2.6-lttng/include/asm-m68k/thread_info.h 2007-07-30 18:15:23.000000000 -0400
@@ -55,6 +55,7 @@ struct thread_info {
*/
#define TIF_SIGPENDING 6 /* signal pending */
#define TIF_NEED_RESCHED 7 /* rescheduling necessary */
+#define TIF_KERNEL_TRACE 13 /* kernel trace active */
#define TIF_DELAYED_TRACE 14 /* single step a syscall */
#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
#define TIF_MEMDIE 16
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 12/26] LTTng Kernel Trace Thread Flag m68knommu
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (10 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 11/26] LTTng Kernel Trace Thread Flag m68k Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 13/26] LTTng Kernel Trace Thread Flag MIPS Mathieu Desnoyers
` (14 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-m68knommu.patch --]
[-- Type: text/plain, Size: 1422 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-m68knommu/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-m68knommu/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-m68knommu/thread_info.h 2007-07-30 18:49:42.000000000 -0400
+++ linux-2.6-lttng/include/asm-m68knommu/thread_info.h 2007-07-30 19:08:02.000000000 -0400
@@ -88,14 +88,16 @@ static inline struct thread_info *curren
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_MEMDIE 4
+#define TIF_KERNEL_TRACE 5 /* kernel trace active */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
-#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK 0x0000FFDE /* work to do on interrupt/exception return */
#endif /* __KERNEL__ */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 13/26] LTTng Kernel Trace Thread Flag MIPS
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (11 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 12/26] LTTng Kernel Trace Thread Flag m68knommu Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 14/26] LTTng Kernel Trace Thread Flag parisc Mathieu Desnoyers
` (13 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-mips.patch --]
[-- Type: text/plain, Size: 1646 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-mips/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-mips/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-mips/thread_info.h 2007-08-09 15:19:01.000000000 -0400
+++ linux-2.6-lttng/include/asm-mips/thread_info.h 2007-08-09 15:28:15.000000000 -0400
@@ -122,9 +122,11 @@ register struct thread_info *__current_t
#define TIF_32BIT_REGS 22 /* also implies 16/32 fprs */
#define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */
#define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */
+#define TIF_KERNEL_TRACE 30 /* kernel trace active */
#define TIF_SYSCALL_TRACE 31 /* syscall trace active */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
@@ -142,7 +144,7 @@ register struct thread_info *__current_t
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK (0x0000ffef & ~_TIF_SECCOMP)
/* work to do on any return to u-space */
-#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP)
+#define _TIF_ALLWORK_MASK (0xc000ffff & ~_TIF_SECCOMP)
#endif /* __KERNEL__ */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 14/26] LTTng Kernel Trace Thread Flag parisc
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (12 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 13/26] LTTng Kernel Trace Thread Flag MIPS Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 15/26] LTTng Kernel Trace Thread Flag powerpc Mathieu Desnoyers
` (12 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-parisc.patch --]
[-- Type: text/plain, Size: 1395 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-parisc/thread_info.h | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6-lttng/include/asm-parisc/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-parisc/thread_info.h 2007-07-30 18:18:19.000000000 -0400
+++ linux-2.6-lttng/include/asm-parisc/thread_info.h 2007-07-30 18:18:48.000000000 -0400
@@ -62,6 +62,7 @@ struct thread_info {
#define TIF_32BIT 4 /* 32 bit binary */
#define TIF_MEMDIE 5
#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
+#define TIF_KERNEL_TRACE 7 /* kernel trace active */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -69,6 +70,7 @@ struct thread_info {
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_32BIT (1 << TIF_32BIT)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \
_TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 15/26] LTTng Kernel Trace Thread Flag powerpc
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (13 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 14/26] LTTng Kernel Trace Thread Flag parisc Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:42 ` [patch-RFC 16/26] LTTng Kernel Trace Thread Flag s390 Mathieu Desnoyers
` (11 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-powerpc.patch --]
[-- Type: text/plain, Size: 2535 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-powerpc/thread_info.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
Index: linux-2.6-lttng/include/asm-powerpc/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-powerpc/thread_info.h 2007-08-10 17:21:52.000000000 -0400
+++ linux-2.6-lttng/include/asm-powerpc/thread_info.h 2007-08-10 18:26:46.000000000 -0400
@@ -112,7 +112,7 @@ static inline struct thread_info *curren
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_32BIT 4 /* 32 bit binary */
-#define TIF_PERFMON_WORK 5 /* work for pfm_handle_work() */
+#define TIF_KERNEL_TRACE 5 /* kernel trace active */
#define TIF_PERFMON_CTXSW 6 /* perfmon needs ctxsw calls */
#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
#define TIF_SINGLESTEP 8 /* singlestepping active */
@@ -124,6 +124,7 @@ static inline struct thread_info *curren
#define TIF_FREEZE 14 /* Freezing for suspend */
#define TIF_RUNLATCH 15 /* Is the runlatch enabled? */
#define TIF_ABI_PENDING 16 /* 32/64 bit switch needed */
+#define TIF_PERFMON_WORK 17 /* work for pfm_handle_work() */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -131,7 +132,7 @@ static inline struct thread_info *curren
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_32BIT (1<<TIF_32BIT)
-#define _TIF_PERFMON_WORK (1<<TIF_PERFMON_WORK)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_PERFMON_CTXSW (1<<TIF_PERFMON_CTXSW)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
@@ -142,7 +143,8 @@ static inline struct thread_info *curren
#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_RUNLATCH (1<<TIF_RUNLATCH)
#define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING)
-#define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
+#define _TIF_PERFMON_WORK (1<<TIF_PERFMON_WORK)
+#define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP|_TIF_KERNEL_TRACE)
#define _TIF_USER_WORK_MASK ( _TIF_SIGPENDING | \
_TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 16/26] LTTng Kernel Trace Thread Flag s390
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (14 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 15/26] LTTng Kernel Trace Thread Flag powerpc Mathieu Desnoyers
@ 2007-12-06 2:42 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 17/26] LTTng Kernel Trace Thread Flag SH Mathieu Desnoyers
` (10 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:42 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-s390.patch --]
[-- Type: text/plain, Size: 1516 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/s390/kernel/entry.S | 5 ++++-
include/asm-s390/thread_info.h | 2 ++
2 files changed, 6 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-s390/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-s390/thread_info.h 2007-11-20 13:10:50.000000000 -0500
+++ linux-2.6-lttng/include/asm-s390/thread_info.h 2007-11-20 13:12:20.000000000 -0500
@@ -96,6 +96,7 @@
#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */
#define TIF_SINGLE_STEP 6 /* deliver sigtrap on return to user */
#define TIF_MCCK_PENDING 7 /* machine check handling is pending */
+#define TIF_KERNEL_TRACE 8 /* kernel trace active */
#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 */
@@ -110,6 +111,7 @@
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_SINGLE_STEP (1<<TIF_SINGLE_STEP)
#define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_31BIT (1<<TIF_31BIT)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 17/26] LTTng Kernel Trace Thread Flag SH
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (15 preceding siblings ...)
2007-12-06 2:42 ` [patch-RFC 16/26] LTTng Kernel Trace Thread Flag s390 Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 18/26] LTTng Kernel Trace Thread Flag sh64 Mathieu Desnoyers
` (9 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-sh.patch --]
[-- Type: text/plain, Size: 1833 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-sh/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-sh/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-sh/thread_info.h 2007-07-30 18:46:17.000000000 -0400
+++ linux-2.6-lttng/include/asm-sh/thread_info.h 2007-07-30 19:11:39.000000000 -0400
@@ -111,6 +111,7 @@ static inline struct thread_info *curren
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
#define TIF_RESTORE_SIGMASK 3 /* restore signal mask in do_signal() */
#define TIF_SINGLESTEP 4 /* singlestepping active */
+#define TIF_KERNEL_TRACE 5 /* kernel trace active */
#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 */
#define TIF_MEMDIE 18
@@ -121,11 +122,12 @@ static inline struct thread_info *curren
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_FREEZE (1<<TIF_FREEZE)
-#define _TIF_WORK_MASK 0x000000FE /* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK 0x000000DE /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x000000FF /* work to do on any return to u-space */
#endif /* __KERNEL__ */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 18/26] LTTng Kernel Trace Thread Flag sh64
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (16 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 17/26] LTTng Kernel Trace Thread Flag SH Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 19/26] LTTng Kernel Trace Thread Flag sparc Mathieu Desnoyers
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From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-sh64.patch --]
[-- Type: text/plain, Size: 1280 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-sh64/thread_info.h | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6-lttng/include/asm-sh64/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-sh64/thread_info.h 2007-07-30 18:23:10.000000000 -0400
+++ linux-2.6-lttng/include/asm-sh64/thread_info.h 2007-07-30 18:23:34.000000000 -0400
@@ -75,11 +75,13 @@ static inline struct thread_info *curren
/* thread information flags */
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
+#define TIF_KERNEL_TRACE 1 /* kernel trace active */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_MEMDIE 4
#define TIF_RESTORE_SIGMASK 5 /* Restore signal mask in do_signal */
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 19/26] LTTng Kernel Trace Thread Flag sparc
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (17 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 18/26] LTTng Kernel Trace Thread Flag sh64 Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 20/26] LTTng Kernel Trace Thread Flag sparc64 Mathieu Desnoyers
` (7 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-sparc.patch --]
[-- Type: text/plain, Size: 1464 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-sparc/thread_info.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-sparc/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-sparc/thread_info.h 2007-07-30 18:23:47.000000000 -0400
+++ linux-2.6-lttng/include/asm-sparc/thread_info.h 2007-07-30 18:24:06.000000000 -0400
@@ -128,7 +128,7 @@ BTFIXUPDEF_CALL(void, free_thread_info,
* thread information flag bit numbers
*/
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
-/* flag bit 1 is available */
+#define TIF_KERNEL_TRACE 1 /* kernel trace active */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */
@@ -140,6 +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_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 20/26] LTTng Kernel Trace Thread Flag sparc64
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (18 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 19/26] LTTng Kernel Trace Thread Flag sparc Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 21/26] LTTng Kernel Trace Thread Flag UML Mathieu Desnoyers
` (6 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-sparc64.patch --]
[-- Type: text/plain, Size: 1531 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-sparc64/thread_info.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-sparc64/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-sparc64/thread_info.h 2007-07-30 18:24:15.000000000 -0400
+++ linux-2.6-lttng/include/asm-sparc64/thread_info.h 2007-07-30 18:25:43.000000000 -0400
@@ -225,7 +225,7 @@ register struct thread_info *current_thr
#define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
#define TIF_NEWSIGNALS 6 /* wants new-style signals */
#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 */
@@ -244,6 +244,7 @@ register struct thread_info *current_thr
#define _TIF_UNALIGNED (1<<TIF_UNALIGNED)
#define _TIF_NEWSIGNALS (1<<TIF_NEWSIGNALS)
#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_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 21/26] LTTng Kernel Trace Thread Flag UML
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (19 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 20/26] LTTng Kernel Trace Thread Flag sparc64 Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 22/26] LTTng Kernel Trace Thread Flag v850 Mathieu Desnoyers
` (5 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-um.patch --]
[-- Type: text/plain, Size: 1234 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-um/thread_info.h | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6-lttng/include/asm-um/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-um/thread_info.h 2007-07-30 18:26:11.000000000 -0400
+++ linux-2.6-lttng/include/asm-um/thread_info.h 2007-07-30 18:26:39.000000000 -0400
@@ -82,6 +82,7 @@ static inline struct thread_info *curren
#define TIF_MEMDIE 5
#define TIF_SYSCALL_AUDIT 6
#define TIF_RESTORE_SIGMASK 7
+#define TIF_KERNEL_TRACE 8 /* kernel trace active */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -90,5 +91,6 @@ static inline struct thread_info *curren
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
#endif
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 22/26] LTTng Kernel Trace Thread Flag v850
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (20 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 21/26] LTTng Kernel Trace Thread Flag UML Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 23/26] Prepare x86_64 for TIF_SYSCALL_TRACE async flag set in entry.S Mathieu Desnoyers
` (4 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-v850.patch --]
[-- Type: text/plain, Size: 1219 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-v850/thread_info.h | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6-lttng/include/asm-v850/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-v850/thread_info.h 2007-07-30 18:26:48.000000000 -0400
+++ linux-2.6-lttng/include/asm-v850/thread_info.h 2007-07-30 18:27:19.000000000 -0400
@@ -82,12 +82,14 @@ struct thread_info {
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_MEMDIE 4
+#define TIF_KERNEL_TRACE 5 /* kernel trace active */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
/* Size of kernel stack for each process. */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 23/26] Prepare x86_64 for TIF_SYSCALL_TRACE async flag set in entry.S
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (21 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 22/26] LTTng Kernel Trace Thread Flag v850 Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 24/26] LTTng Linux Kernel Trace Thread Flag x86_64 Mathieu Desnoyers
` (3 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel
Cc: Mathieu Desnoyers, Andi Kleen, Thomas Gleixner, Ingo Molnar,
H. Peter Anvin
[-- Attachment #1: fix-x86_64-sysenter-trace-race.patch --]
[-- Type: text/plain, Size: 1845 bytes --]
When the flag is inactive upon syscall entry and concurrently activated before
exit, we seem to reach a state where the top of stack is incorrect upon return
to user space.
Fix this by fixing the top of stack and jumping to int_ret_from_sys_call if we
detect that thread flags has been modified.
We make sure that the thread flag read is coherent between our new test and the ALLWORK_MASK test by first saving it in a register used for both comparisons.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andi Kleen <ak@muc.de>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: H. Peter Anvin <hpa@zytor.com>
---
arch/x86/kernel/entry_64.S | 12 ++++++++++++
1 file changed, 12 insertions(+)
Index: linux-2.6-lttng/arch/x86/kernel/entry_64.S
===================================================================
--- linux-2.6-lttng.orig/arch/x86/kernel/entry_64.S 2007-11-13 09:25:25.000000000 -0500
+++ linux-2.6-lttng/arch/x86/kernel/entry_64.S 2007-11-13 09:49:48.000000000 -0500
@@ -268,6 +268,8 @@ sysret_check:
/* Handle reschedules */
/* edx: work, edi: workmask */
sysret_careful:
+ testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP),%edx
+ jnz ret_from_sys_call_trace
bt $TIF_NEED_RESCHED,%edx
jnc sysret_signal
TRACE_IRQS_ON
@@ -279,6 +281,16 @@ sysret_careful:
CFI_ADJUST_CFA_OFFSET -8
jmp sysret_check
+ret_from_sys_call_trace:
+ TRACE_IRQS_ON
+ sti
+ SAVE_REST
+ FIXUP_TOP_OF_STACK %rdi
+ movq %rsp,%rdi
+ LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ RESTORE_REST
+ jmp int_ret_from_sys_call
+
/* Handle a signal */
sysret_signal:
TRACE_IRQS_ON
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 24/26] LTTng Linux Kernel Trace Thread Flag x86_64
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (22 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 23/26] Prepare x86_64 for TIF_SYSCALL_TRACE async flag set in entry.S Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 25/26] LTTng Kernel Trace Thread Flag xtensa Mathieu Desnoyers
` (2 subsequent siblings)
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel
Cc: Mathieu Desnoyers, Thomas Gleixner, Ingo Molnar, H. Peter Anvin
[-- Attachment #1: lttng-kernel-trace-thread-flag-x86_64.patch --]
[-- Type: text/plain, Size: 2000 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: H. Peter Anvin <hpa@zytor.com>
---
include/asm-x86/thread_info_64.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-x86/thread_info_64.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86/thread_info_64.h 2007-11-02 11:06:22.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86/thread_info_64.h 2007-11-02 12:02:57.000000000 -0400
@@ -107,6 +107,7 @@ static inline struct thread_info *stack_
* Warning: layout of LSW is hardcoded in entry.S
*/
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
+#define TIF_KERNEL_TRACE 1 /* kernel trace active */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/
@@ -125,6 +126,7 @@ static inline struct thread_info *stack_
#define TIF_FREEZE 23 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_KERNEL_TRACE (1<<TIF_KERNEL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
@@ -142,7 +144,7 @@ static inline struct thread_info *stack_
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK \
- (0x0000FFFF & ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP|_TIF_SECCOMP))
+ (0x0000FFFF & ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_KERNEL_TRACE|_TIF_SINGLESTEP|_TIF_SECCOMP))
/* work to do on any return to user 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
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 25/26] LTTng Kernel Trace Thread Flag xtensa
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (23 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 24/26] LTTng Linux Kernel Trace Thread Flag x86_64 Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 2:43 ` [patch-RFC 26/26] LTTng Kernel Trace Thread Flag API Mathieu Desnoyers
2007-12-06 21:30 ` [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Frank Ch. Eigler
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-xtensa.patch --]
[-- Type: text/plain, Size: 1692 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/asm-xtensa/thread_info.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-xtensa/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-xtensa/thread_info.h 2007-09-04 11:50:18.000000000 -0400
+++ linux-2.6-lttng/include/asm-xtensa/thread_info.h 2007-09-04 12:20:19.000000000 -0400
@@ -116,6 +116,7 @@ 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_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -123,10 +124,11 @@ 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_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 */
/*
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* [patch-RFC 26/26] LTTng Kernel Trace Thread Flag API
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (24 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 25/26] LTTng Kernel Trace Thread Flag xtensa Mathieu Desnoyers
@ 2007-12-06 2:43 ` Mathieu Desnoyers
2007-12-06 21:30 ` [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Frank Ch. Eigler
26 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-06 2:43 UTC (permalink / raw)
To: akpm, Ingo Molnar, linux-kernel; +Cc: Mathieu Desnoyers
[-- Attachment #1: lttng-kernel-trace-thread-flag-api.patch --]
[-- Type: text/plain, Size: 4058 bytes --]
Add an API to set/clear the kernel wide tracing thread flags. Implemented in
kernel/sched.c. Updates thread flags *asynchronously* while holding the tasklist
lock.
Upon fork, the flag must be re-copied while the tasklist lock is held.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
include/linux/sched.h | 3 ++
kernel/fork.c | 9 ++++++++
kernel/sched.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 67 insertions(+)
Index: linux-2.6-lttng/include/linux/sched.h
===================================================================
--- linux-2.6-lttng.orig/include/linux/sched.h 2007-12-05 20:50:29.000000000 -0500
+++ linux-2.6-lttng/include/linux/sched.h 2007-12-05 20:54:32.000000000 -0500
@@ -2000,6 +2000,9 @@ static inline void migration_init(void)
}
#endif
+extern void clear_kernel_trace_flag_all_tasks(void);
+extern void set_kernel_trace_flag_all_tasks(void);
+
#endif /* __KERNEL__ */
#endif
Index: linux-2.6-lttng/kernel/fork.c
===================================================================
--- linux-2.6-lttng.orig/kernel/fork.c 2007-12-05 20:54:00.000000000 -0500
+++ linux-2.6-lttng/kernel/fork.c 2007-12-05 20:54:32.000000000 -0500
@@ -1241,6 +1241,15 @@ static struct task_struct *copy_process(
!cpu_online(task_cpu(p))))
set_task_cpu(p, smp_processor_id());
+ /*
+ * The state of the parent's TIF_KTRACE flag may have changed
+ * since it was copied in dup_task_struct() so we re-copy it here.
+ */
+ if (test_thread_flag(TIF_KERNEL_TRACE))
+ set_tsk_thread_flag(p, TIF_KERNEL_TRACE);
+ else
+ clear_tsk_thread_flag(p, TIF_KERNEL_TRACE);
+
/* CLONE_PARENT re-uses the old parent */
if (clone_flags & (CLONE_PARENT|CLONE_THREAD))
p->real_parent = current->real_parent;
Index: linux-2.6-lttng/kernel/sched.c
===================================================================
--- linux-2.6-lttng.orig/kernel/sched.c 2007-12-05 20:54:00.000000000 -0500
+++ linux-2.6-lttng/kernel/sched.c 2007-12-05 20:54:32.000000000 -0500
@@ -7394,3 +7394,58 @@ struct cgroup_subsys cpuacct_subsys = {
.subsys_id = cpuacct_subsys_id,
};
#endif /* CONFIG_CGROUP_CPUACCT */
+
+static DEFINE_MUTEX(kernel_trace_mutex);
+static int kernel_trace_refcount;
+
+/**
+ * clear_kernel_trace_flag_all_tasks - clears all TIF_KERNEL_TRACE thread flags.
+ *
+ * This function iterates on all threads in the system to clear their
+ * TIF_KERNEL_TRACE flag. Setting the TIF_KERNEL_TRACE flag with the
+ * tasklist_lock held in copy_process() makes sure that once we finish clearing
+ * the thread flags, all threads have their flags cleared.
+ */
+void clear_kernel_trace_flag_all_tasks(void)
+{
+ struct task_struct *p;
+ struct task_struct *t;
+
+ mutex_lock(&kernel_trace_mutex);
+ if (--kernel_trace_refcount)
+ goto end;
+ read_lock(&tasklist_lock);
+ do_each_thread(p, t) {
+ clear_tsk_thread_flag(t, TIF_KERNEL_TRACE);
+ } while_each_thread(p, t);
+ read_unlock(&tasklist_lock);
+end:
+ mutex_unlock(&kernel_trace_mutex);
+}
+EXPORT_SYMBOL_GPL(clear_kernel_trace_flag_all_tasks);
+
+/**
+ * set_kernel_trace_flag_all_tasks - sets all TIF_KERNEL_TRACE thread flags.
+ *
+ * This function iterates on all threads in the system to set their
+ * TIF_KERNEL_TRACE flag. Setting the TIF_KERNEL_TRACE flag with the
+ * tasklist_lock held in copy_process() makes sure that once we finish setting
+ * the thread flags, all threads have their flags set.
+ */
+void set_kernel_trace_flag_all_tasks(void)
+{
+ struct task_struct *p;
+ struct task_struct *t;
+
+ mutex_lock(&kernel_trace_mutex);
+ if (kernel_trace_refcount++)
+ goto end;
+ read_lock(&tasklist_lock);
+ do_each_thread(p, t) {
+ set_tsk_thread_flag(t, TIF_KERNEL_TRACE);
+ } while_each_thread(p, t);
+ read_unlock(&tasklist_lock);
+end:
+ mutex_unlock(&kernel_trace_mutex);
+}
+EXPORT_SYMBOL_GPL(set_kernel_trace_flag_all_tasks);
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread* Re: [patch-RFC 00/26] LTTng Kernel Trace Thread Flag
2007-12-06 2:42 [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Mathieu Desnoyers
` (25 preceding siblings ...)
2007-12-06 2:43 ` [patch-RFC 26/26] LTTng Kernel Trace Thread Flag API Mathieu Desnoyers
@ 2007-12-06 21:30 ` Frank Ch. Eigler
2007-12-07 13:44 ` Mathieu Desnoyers
26 siblings, 1 reply; 29+ messages in thread
From: Frank Ch. Eigler @ 2007-12-06 21:30 UTC (permalink / raw)
To: Mathieu Desnoyers; +Cc: akpm, Ingo Molnar, linux-kernel
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> writes:
> This is an RFC for addition of a new thread flag, TIF_KERNEL_TRACE, to each
> architecture to activate system-wide system call tracing.
> [...]
Instead of creating a new flag, could you overload TIF_SYSCALL_TRACE,
putting the marker into syscall_trace(), and letting !PT_TRACED cause
a skip over the ptrace notification logic?
- FChE
^ permalink raw reply [flat|nested] 29+ messages in thread* Re: [patch-RFC 00/26] LTTng Kernel Trace Thread Flag
2007-12-06 21:30 ` [patch-RFC 00/26] LTTng Kernel Trace Thread Flag Frank Ch. Eigler
@ 2007-12-07 13:44 ` Mathieu Desnoyers
0 siblings, 0 replies; 29+ messages in thread
From: Mathieu Desnoyers @ 2007-12-07 13:44 UTC (permalink / raw)
To: Frank Ch. Eigler; +Cc: akpm, Ingo Molnar, linux-kernel
* Frank Ch. Eigler (fche@redhat.com) wrote:
> Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> writes:
>
> > This is an RFC for addition of a new thread flag, TIF_KERNEL_TRACE, to each
> > architecture to activate system-wide system call tracing.
> > [...]
>
> Instead of creating a new flag, could you overload TIF_SYSCALL_TRACE,
> putting the marker into syscall_trace(), and letting !PT_TRACED cause
> a skip over the ptrace notification logic?
>
> - FChE
I don't see any PT_TRACED flag in current kernel HEAD ?
Hrm, let's see. If we share TIF_SYSCALL_TRACE with ptrace, we would then
have to figure out how to get this working :
- kernel tracing activated
- ptracing some random processes
- kernel tracing deactivated
- stop ptracing those processes
It means that we would have to keep some state information about the
ptrace status of each process. This is currently kept by
TIF_SYSCALL_TRACE, but since we would be overloading it, it would be
lost when we deactivate kernel tracing. Adding a supplementary field to
the thread_info structure is out of question here : we have to keep it
as small as possible. So where do you propose to keep this information
other than... another thread flag ?
Mathieu
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
^ permalink raw reply [flat|nested] 29+ messages in thread