From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Richard Henderson <rth@twiddle.net>,
Jay Estabrook <jay.estabrook@hp.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 4/7] ALPHA: "prctl" macros
Date: Wed, 11 Apr 2007 12:29:35 +0400 [thread overview]
Message-ID: <20070411122935.E17547@jurassic.park.msu.ru> (raw)
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>
---
diff -Naurp a/include/asm-alpha/thread_info.h b/include/asm-alpha/thread_info.h
--- a/include/asm-alpha/thread_info.h 2007-02-04 13:44:54.000000000 -0500
+++ b/include/asm-alpha/thread_info.h 2007-03-19 14:57:30.000000000 -0400
@@ -92,5 +92,27 @@ register struct thread_info *__current_t
#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 */
reply other threads:[~2007-04-11 8:53 UTC|newest]
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