Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932277AbaGHUQu (ORCPT ); Tue, 8 Jul 2014 16:16:50 -0400 Received: from mail-pd0-f169.google.com ([209.85.192.169]:53082 "EHLO mail-pd0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932239AbaGHUQq (ORCPT ); Tue, 8 Jul 2014 16:16:46 -0400 From: behanw@converseincode.com To: anurag19aggarwal@gmail.com, catalin.marinas@arm.com, charlebm@gmail.com, dave.long@linaro.org, k.khlebnikov@samsung.com, linux@arm.linux.org.uk, linyongting@gmail.com, Nikolay.Borisov@arm.com, tglx@linutronix.de, u.kleine-koenig@pengutronix.de, will.deacon@arm.com Cc: behanw@converseincode.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, rabin@rab.in, rostedt@goodmis.org, dwmw2@infradead.org Subject: [PATCH 2/6] arm: LLVMLinux: Use current_stack_pointer to calculate pt_regs address Date: Tue, 8 Jul 2014 13:16:12 -0700 Message-Id: <1404850576-2006-3-git-send-email-behanw@converseincode.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1404850576-2006-1-git-send-email-behanw@converseincode.com> References: <1404850576-2006-1-git-send-email-behanw@converseincode.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Behan Webster Use the global current_stack_pointer to calculate the end of the stack for current_pt_regs() Signed-off-by: Behan Webster Signed-off-by: Mark Charlebois Reviewed-by: Jan-Simon M??ller --- arch/arm/include/asm/ptrace.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index c877654..45bc592 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -148,9 +148,8 @@ static inline unsigned long user_stack_pointer(struct pt_regs *regs) return regs->ARM_sp; } -#define current_pt_regs(void) ({ \ - register unsigned long sp asm ("sp"); \ - (struct pt_regs *)((sp | (THREAD_SIZE - 1)) - 7) - 1; \ +#define current_pt_regs(void) ({ \ + (struct pt_regs *)((current_stack_pointer | (THREAD_SIZE - 1)) - 7) - 1; \ }) #endif /* __ASSEMBLY__ */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/