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.c...@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 bcebc75..45d098c 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -110,6 +110,8 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NOERROR            12      /* Force successful syscall return */
 #define TIF_NOTIFY_RESUME      13      /* callback before returning to user */
 #define TIF_SYSCALL_TRACEPOINT 15      /* syscall tracepoint instrumentation */
+#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)
@@ -126,6 +128,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NOERROR           (1<<TIF_NOERROR)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_SYSCALL_TRACEPOINT        (1<<TIF_SYSCALL_TRACEPOINT)
+#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

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