From ed58a593dcf6bb9853f711e56f8618f84b7b8cb2 Mon Sep 17 00:00:00 2001
From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Date: Sun, 6 May 2007 14:50:38 -0700
Subject: ALPHA: "prctl" macros

Files:

include/asm-alpha/thread_info.h

	Provide "prctl" macros for ALPHA.

Signed-off-by: Jay Estabrook <jay.estabrook@hp.com>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/asm-alpha/thread_info.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'include/asm-alpha/thread_info.h')

diff --git a/include/asm-alpha/thread_info.h b/include/asm-alpha/thread_info.h
index 69ffd93f8e22..eeb3bef91e11 100644
--- a/include/asm-alpha/thread_info.h
+++ b/include/asm-alpha/thread_info.h
@@ -92,5 +92,27 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK		\
 				 | _TIF_SYSCALL_TRACE)
 
+#define ALPHA_UAC_SHIFT		6
+#define ALPHA_UAC_MASK		(1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
+				 1 << TIF_UAC_SIGBUS)
+
+#define SET_UNALIGN_CTL(task,value)	({				     \
+	(task)->thread_info->flags = (((task)->thread_info->flags &	     \
+		~ALPHA_UAC_MASK)					     \
+		| (((value) << ALPHA_UAC_SHIFT)       & (1<<TIF_UAC_NOPRINT))\
+		| (((value) << (ALPHA_UAC_SHIFT + 1)) & (1<<TIF_UAC_SIGBUS)) \
+		| (((value) << (ALPHA_UAC_SHIFT - 1)) & (1<<TIF_UAC_NOFIX)));\
+	0; })
+
+#define GET_UNALIGN_CTL(task,value)	({				\
+	put_user(((task)->thread_info->flags & (1 << TIF_UAC_NOPRINT))	\
+		  >> ALPHA_UAC_SHIFT					\
+		 | ((task)->thread_info->flags & (1 << TIF_UAC_SIGBUS))	\
+		 >> (ALPHA_UAC_SHIFT + 1)				\
+		 | ((task)->thread_info->flags & (1 << TIF_UAC_NOFIX))	\
+		 >> (ALPHA_UAC_SHIFT - 1),				\
+		 (int __user *)(value));				\
+	})
+
 #endif /* __KERNEL__ */
 #endif /* _ALPHA_THREAD_INFO_H */
-- 
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