From 19f9a34f87c48bbd270d617d1c986d0c23866a1a Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Wed, 27 Sep 2006 18:33:49 +0900
Subject: sh: Initial vsyscall page support.

This implements initial support for the vsyscall page on SH.
At the moment we leave it configurable due to having nommu
to support from the same code base. We hook it up for the
signal trampoline return at present, with more to be added
later, once uClibc catches up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 include/asm-sh/page.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/asm-sh/page.h')

diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index acf6977b4042..3d8dae31a6f6 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -117,5 +117,10 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+/* vDSO support */
+#ifdef CONFIG_VSYSCALL
+#define __HAVE_ARCH_GATE_AREA
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_PAGE_H */
-- 
cgit v1.2.3