From: Tiejun Chen <tiejun.chen@windriver.com>
To: <benh@kernel.crashing.org>, <linuxppc-dev@ozlabs.org>
Subject: [PATCH v2 1/3] powerpc/kprobe: introduce a new thread flag
Date: Thu, 15 Dec 2011 19:00:08 +0800 [thread overview]
Message-ID: <1323946810-4868-2-git-send-email-tiejun.chen@windriver.com> (raw)
In-Reply-To: <1323946810-4868-1-git-send-email-tiejun.chen@windriver.com>
We need to add a new thread flag, TIF_EMULATE_STACK_STORE,
for emulating stack store operation while exiting exception.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
---
arch/powerpc/include/asm/thread_info.h | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 836f231..f414fee 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -112,6 +112,8 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_FREEZE 14 /* Freezing for suspend */
#define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint instrumentation */
#define TIF_RUNLATCH 16 /* Is the runlatch enabled? */
+#define TIF_EMULATE_STACK_STORE 17 /* Is an instruction emulation
+ for stack store? */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -130,6 +132,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
#define _TIF_RUNLATCH (1<<TIF_RUNLATCH)
+#define _TIF_EMULATE_STACK_STORE (1<<TIF_EMULATE_STACK_STORE)
#define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
_TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
--
1.5.6
next prev parent reply other threads:[~2011-12-15 11:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 11:00 [PATCH v2 0/3] ppc32/kprobe: Fix a bug for kprobe stwu r1 Tiejun Chen
2011-12-15 11:00 ` Tiejun Chen [this message]
2011-12-15 11:00 ` [PATCH v2 2/3] ppc32/kprobe: complete kprobe and migrate exception frame Tiejun Chen
2012-05-10 3:50 ` Benjamin Herrenschmidt
2012-06-03 5:01 ` tiejun.chen
2011-12-15 11:00 ` [PATCH v2 3/3] ppc32/kprobe: don't emulate store when kprobe stwu r1 Tiejun Chen
2012-01-10 9:15 ` [PATCH v2 0/3] ppc32/kprobe: Fix a bug for " tiejun.chen
2012-01-11 0:53 ` Benjamin Herrenschmidt
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