From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932383AbaCEWcL (ORCPT ); Wed, 5 Mar 2014 17:32:11 -0500 Received: from terminus.zytor.com ([198.137.202.10]:37592 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932281AbaCEWcH (ORCPT ); Wed, 5 Mar 2014 17:32:07 -0500 Date: Wed, 5 Mar 2014 14:31:42 -0800 From: tip-bot for Stefani Seibold Message-ID: Cc: linux-kernel@vger.kernel.org, luto@amacapital.net, hpa@zytor.com, mingo@kernel.org, stefani@seibold.net, tglx@linutronix.de, hpa@linux.intel.com Reply-To: mingo@kernel.org, hpa@zytor.com, luto@amacapital.net, linux-kernel@vger.kernel.org, stefani@seibold.net, tglx@linutronix.de, hpa@linux.intel.com In-Reply-To: <1393881143-3569-8-git-send-email-stefani@seibold.net> References: <1393881143-3569-8-git-send-email-stefani@seibold.net> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/vdso] x86, vdso: Introduce VVAR marco for vdso32 Git-Commit-ID: 47ffeb5bae376766da7f4a326f13e980a280338b X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 47ffeb5bae376766da7f4a326f13e980a280338b Gitweb: http://git.kernel.org/tip/47ffeb5bae376766da7f4a326f13e980a280338b Author: Stefani Seibold AuthorDate: Mon, 3 Mar 2014 22:12:18 +0100 Committer: H. Peter Anvin CommitDate: Wed, 5 Mar 2014 14:02:38 -0800 x86, vdso: Introduce VVAR marco for vdso32 This patch revamps the vvar.h for introduce the VVAR macro for vdso32. Reviewed-by: Andy Lutomirski Signed-off-by: Stefani Seibold Link: http://lkml.kernel.org/r/1393881143-3569-8-git-send-email-stefani@seibold.net Signed-off-by: H. Peter Anvin --- 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) */