From: 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 v14 7/9] introduce VVAR marco for vdso32
Date: Mon, 10 Feb 2014 09:03:28 +0100 [thread overview]
Message-ID: <1392019410-29634-8-git-send-email-stefani@seibold.net> (raw)
In-Reply-To: <1392019410-29634-1-git-send-email-stefani@seibold.net>
From: Stefani Seibold <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
next prev parent reply other threads:[~2014-02-10 8:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-10 8:03 [PATCH v14 0/9] Add 32 bit VDSO time function support stefani
2014-02-10 8:03 ` [PATCH v14 1/9] Make vsyscall_gtod_data handling x86 generic stefani
2014-02-10 8:03 ` [PATCH v14 2/9] Add new func _install_special_mapping() to mmap.c stefani
2014-02-10 8:03 ` [PATCH v14 3/9] revamp vclock_gettime.c stefani
2014-02-10 8:03 ` [PATCH v14 4/9] vclock_gettime.c __vdso_clock_gettime cleanup stefani
2014-02-10 8:03 ` [PATCH v14 5/9] replace VVAR(vsyscall_gtod_data) by gtod macro stefani
2014-02-10 8:03 ` [PATCH v14 6/9] cleanup __vdso_gettimeofday stefani
2014-02-10 8:03 ` stefani [this message]
2014-02-10 8:03 ` [PATCH v14 8/9] Add 32 bit VDSO time support for 32 bit kernel stefani
2014-02-10 8:03 ` [PATCH v14 9/9] Add 32 bit VDSO time support for 64 " stefani
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