From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756411Ab1ITMPt (ORCPT ); Tue, 20 Sep 2011 08:15:49 -0400 Received: from e23smtp02.au.ibm.com ([202.81.31.144]:51595 "EHLO e23smtp02.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755826Ab1ITMPq (ORCPT ); Tue, 20 Sep 2011 08:15:46 -0400 From: Srikar Dronamraju To: Peter Zijlstra , Ingo Molnar Cc: Steven Rostedt , Srikar Dronamraju , Linux-mm , Arnaldo Carvalho de Melo , Linus Torvalds , Masami Hiramatsu , Hugh Dickins , Christoph Hellwig , Ananth N Mavinakayanahalli , Thomas Gleixner , Jonathan Corbet , Oleg Nesterov , LKML , Jim Keniston , Roland McGrath , Andi Kleen , Andrew Morton Date: Tue, 20 Sep 2011 17:32:04 +0530 Message-Id: <20110920120204.25326.95410.sendpatchset@srdronam.in.ibm.com> In-Reply-To: <20110920115938.25326.93059.sendpatchset@srdronam.in.ibm.com> References: <20110920115938.25326.93059.sendpatchset@srdronam.in.ibm.com> Subject: [PATCH v5 3.1.0-rc4-tip 11/26] x86: Introduce TIF_UPROBE FLAG. Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On a breakpoint or singlestep, the exception notifier will just set this thread_info FLAG so that do_notify_resume can be made aware that a breakpoint/singlestep has occurred. Signed-off-by: Srikar Dronamraju --- arch/x86/include/asm/thread_info.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index a1fe5c1..aeb3e04 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -84,6 +84,7 @@ struct thread_info { #define TIF_SECCOMP 8 /* secure computing */ #define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */ #define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */ +#define TIF_UPROBE 12 /* breakpointed or singlestepping */ #define TIF_NOTSC 16 /* TSC is not accessible in userland */ #define TIF_IA32 17 /* 32bit process */ #define TIF_FORK 18 /* ret_from_fork */ @@ -107,6 +108,7 @@ struct thread_info { #define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY) #define _TIF_USER_RETURN_NOTIFY (1 << TIF_USER_RETURN_NOTIFY) +#define _TIF_UPROBE (1 << TIF_UPROBE) #define _TIF_NOTSC (1 << TIF_NOTSC) #define _TIF_IA32 (1 << TIF_IA32) #define _TIF_FORK (1 << TIF_FORK)