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From: Stefani Seibold <stefani@seibold.net>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	x86@kernel.org, tglx@linutronix.de, mingo@redhat.com,
	hpa@zytor.com, ak@linux.intel.com, aarcange@redhat.com,
	john.stultz@linaro.org, luto@amacapital.net, xemul@parallels.com,
	gorcunov@openvz.org, andriy.shevchenko@linux.intel.com
Cc: Martin.Runge@rohde-schwarz.com, Andreas.Brief@rohde-schwarz.com,
	Stefani Seibold <stefani@seibold.net>
Subject: [PATCH v16 07/10] introduce VVAR marco for vdso32
Date: Fri, 14 Feb 2014 09:52:41 +0100	[thread overview]
Message-ID: <1392367964-32118-8-git-send-email-stefani@seibold.net> (raw)
In-Reply-To: <1392367964-32118-1-git-send-email-stefani@seibold.net>

This patch revamp the vvar.h for introduce the VVAR macro for vdso32.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
---
 arch/x86/include/asm/vvar.h | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/vvar.h b/arch/x86/include/asm/vvar.h
index 0a534ea..52c79ff 100644
--- a/arch/x86/include/asm/vvar.h
+++ b/arch/x86/include/asm/vvar.h
@@ -26,6 +26,15 @@
 
 #else
 
+#ifdef BUILD_VDSO32
+
+#define DECLARE_VVAR(offset, type, name)				\
+	extern type vvar_ ## name __attribute__((visibility("hidden")));
+
+#define VVAR(name) (vvar_ ## name)
+
+#else
+
 extern char __vvar_page;
 
 /* Base address of vvars.  This is not ABI. */
@@ -39,12 +48,13 @@ extern char __vvar_page;
 	static type const * const vvaraddr_ ## name =			\
 		(void *)(VVAR_ADDRESS + (offset));
 
+#define VVAR(name) (*vvaraddr_ ## name)
+#endif
+
 #define DEFINE_VVAR(type, name)						\
 	type name							\
 	__attribute__((section(".vvar_" #name), aligned(16))) __visible
 
-#define VVAR(name) (*vvaraddr_ ## name)
-
 #endif
 
 /* DECLARE_VVAR(offset, type, name) */
-- 
1.8.5.4


  parent reply	other threads:[~2014-02-14  8:53 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-14  8:52 [PATCH v16 0/10] Add 32 bit VDSO time function support Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 01/10] Make vsyscall_gtod_data handling x86 generic Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 02/10] Add new func _install_special_mapping() to mmap.c Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 03/10] revamp vclock_gettime.c Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 04/10] vclock_gettime.c __vdso_clock_gettime cleanup Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 05/10] replace VVAR(vsyscall_gtod_data) by gtod macro Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 06/10] cleanup __vdso_gettimeofday Stefani Seibold
2014-02-14  8:52 ` Stefani Seibold [this message]
2014-02-14  8:52 ` [PATCH v16 08/10] Add 32 bit VDSO time support for 32 bit kernel Stefani Seibold
2014-02-14  8:52 ` [PATCH v16 09/10] Add 32 bit VDSO time support for 64 " Stefani Seibold
2014-02-14 20:17 ` [PATCH v16 0/10] Add 32 bit VDSO time function support Andi Kleen
2014-02-14 22:32 ` H. Peter Anvin
2014-02-15 14:33   ` Stefani Seibold
2014-02-15 18:42     ` H. Peter Anvin
2014-02-14 22:40 ` Andy Lutomirski
2014-02-15  2:48   ` Greg KH
2014-02-15 15:05   ` Stefani Seibold

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