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authorPaul Mundt <lethal@linux-sh.org>2006-09-27 18:33:49 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-09-27 18:33:49 +0900
commit19f9a34f87c48bbd270d617d1c986d0c23866a1a (patch)
tree19f32122aec9c16cbbf8e3331e81040a4850cb8d /include/asm-sh/page.h
parent8c12b5dc13bf8516303a8224ab4e9708b33d5b00 (diff)
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>
Diffstat (limited to 'include/asm-sh/page.h')
-rw-r--r--include/asm-sh/page.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index acf6977b404..3d8dae31a6f 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 */