From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: Ingo Molnar <mingo@elte.hu>,
akpm@linux-foundation.org,
Frederic Weisbecker <fweisbec@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
LKML <linux-kernel@vger.kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Subject: [RFC patch 16/20] LTTng Kernel Trace Thread Flag sparc
Date: Sun, 15 Mar 2009 16:02:00 -0400 [thread overview]
Message-ID: <20090315200507.235705352@polymtl.ca> (raw)
In-Reply-To: 20090315200144.017321577@polymtl.ca
[-- Attachment #1: lttng-kernel-trace-thread-flag-sparc.patch --]
[-- Type: text/plain, Size: 3958 bytes --]
Add a thread flag to activate system-wide syscall tracing.
Folded lttng-kernel-trace-thread-flag-sparc64.patch.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/sparc/include/asm/thread_info_32.h | 2 ++
arch/sparc/include/asm/thread_info_64.h | 3 ++-
arch/sparc/kernel/entry.S | 8 ++++----
3 files changed, 8 insertions(+), 5 deletions(-)
Index: linux-2.6-lttng/arch/sparc/include/asm/thread_info_32.h
===================================================================
--- linux-2.6-lttng.orig/arch/sparc/include/asm/thread_info_32.h 2009-03-15 15:57:04.000000000 -0400
+++ linux-2.6-lttng/arch/sparc/include/asm/thread_info_32.h 2009-03-15 15:57:18.000000000 -0400
@@ -130,6 +130,7 @@ BTFIXUPDEF_CALL(void, free_thread_info,
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */
+#define TIF_KERNEL_TRACE 5 /* kernel trace active */
#define TIF_USEDFPU 8 /* FPU was used by this task
* this quantum (SMP) */
#define TIF_POLLING_NRFLAG 9 /* true if poll_idle() is polling
@@ -139,6 +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_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
Index: linux-2.6-lttng/arch/sparc/kernel/entry.S
===================================================================
--- linux-2.6-lttng.orig/arch/sparc/kernel/entry.S 2009-03-15 15:57:04.000000000 -0400
+++ linux-2.6-lttng/arch/sparc/kernel/entry.S 2009-03-15 15:57:18.000000000 -0400
@@ -1118,7 +1118,7 @@ sys_sigreturn:
add %sp, STACKFRAME_SZ, %o0
ld [%curptr + TI_FLAGS], %l5
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
+ andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0
be 1f
nop
@@ -1138,7 +1138,7 @@ sys_rt_sigreturn:
add %sp, STACKFRAME_SZ, %o0
ld [%curptr + TI_FLAGS], %l5
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
+ andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0
be 1f
nop
@@ -1280,7 +1280,7 @@ syscall_is_too_hard:
ld [%curptr + TI_FLAGS], %l5
mov %i3, %o3
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
+ andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0
mov %i4, %o4
bne linux_syscall_trace
mov %i0, %l5
@@ -1297,7 +1297,7 @@ ret_sys_call:
ld [%sp + STACKFRAME_SZ + PT_PSR], %g3
set PSR_C, %g2
bgeu 1f
- andcc %l6, _TIF_SYSCALL_TRACE, %g0
+ andcc %l6, (_TIF_SYSCALL_TRACE|_TIF_KERNEL_TRACE), %g0
/* System call success, clear Carry condition code. */
andn %g3, %g2, %g3
Index: linux-2.6-lttng/arch/sparc/include/asm/thread_info_64.h
===================================================================
--- linux-2.6-lttng.orig/arch/sparc/include/asm/thread_info_64.h 2009-03-15 15:57:04.000000000 -0400
+++ linux-2.6-lttng/arch/sparc/include/asm/thread_info_64.h 2009-03-15 15:57:18.000000000 -0400
@@ -226,7 +226,7 @@ register struct thread_info *current_thr
#define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
/* flag bit 6 is available */
#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 */
@@ -246,6 +246,7 @@ register struct thread_info *current_thr
#define _TIF_PERFCTR (1<<TIF_PERFCTR)
#define _TIF_UNALIGNED (1<<TIF_UNALIGNED)
#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_ABI_PENDING (1<<TIF_ABI_PENDING)
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2009-03-15 20:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-15 20:01 [RFC patch 00/20] LTTng Kernel Trace Thread Flag v2 Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 01/20] LTTng Kernel Trace Thread Flag Alpha Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 02/20] LTTng Kernel Trace Thread Flag ARM Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 03/20] LTTng Kernel Trace Thread Flag AVR32 Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 04/20] LTTng Kernel Trace Thread Flag Blackfin Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 05/20] LTTng Kernel Trace Thread Flag Cris Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 06/20] LTTng Kernel Trace Thread Flag Frv Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 07/20] LTTng Kernel Trace Thread Flag H8300 Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 08/20] LTTng Kernel Trace Thread Flag ia64 Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 09/20] LTTng Kernel Trace Thread Flag m32r Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 10/20] LTTng Kernel Trace Thread Flag m68k Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 11/20] LTTng Kernel Trace Thread Flag MIPS Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 12/20] LTTng Kernel Trace Thread Flag parisc Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 13/20] LTTng Kernel Trace Thread Flag powerpc Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 14/20] LTTng Kernel Trace Thread Flag s390 Mathieu Desnoyers
2009-03-15 20:01 ` [RFC patch 15/20] LTTng Kernel Trace Thread Flag SH Mathieu Desnoyers
2009-03-15 20:02 ` Mathieu Desnoyers [this message]
2009-03-15 20:02 ` [RFC patch 17/20] LTTng Kernel Trace Thread Flag UML Mathieu Desnoyers
2009-03-15 20:02 ` [RFC patch 18/20] LTTng Linux Kernel Trace Thread Flag x86 Mathieu Desnoyers
2009-03-15 20:02 ` [RFC patch 19/20] LTTng Kernel Trace Thread Flag xtensa Mathieu Desnoyers
2009-03-15 20:02 ` [RFC patch 20/20] LTTng Kernel Trace Thread Flag API Mathieu Desnoyers
-- strict thread matches above, loose matches on Subject: below --
2009-05-09 16:22 [RFC patch 00/20] Kernel tracing thread flag Mathieu Desnoyers
2009-05-09 16:22 ` [RFC patch 16/20] LTTng Kernel Trace Thread Flag sparc Mathieu Desnoyers
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