Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755672Ab1CNNkK (ORCPT ); Mon, 14 Mar 2011 09:40:10 -0400 Received: from e28smtp01.in.ibm.com ([122.248.162.1]:38048 "EHLO e28smtp01.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753842Ab1CNNkG (ORCPT ); Mon, 14 Mar 2011 09:40:06 -0400 From: Srikar Dronamraju To: Peter Zijlstra , Ingo Molnar Cc: Steven Rostedt , Srikar Dronamraju , Linux-mm , Arnaldo Carvalho de Melo , Linus Torvalds , Andi Kleen , Christoph Hellwig , Masami Hiramatsu , Oleg Nesterov , Andrew Morton , SystemTap , Jim Keniston , Roland McGrath , Ananth N Mavinakayanahalli , LKML , "Paul E. McKenney" Date: Mon, 14 Mar 2011 19:04:23 +0530 Message-Id: <20110314133423.27435.95841.sendpatchset@localhost6.localdomain6> In-Reply-To: <20110314133403.27435.7901.sendpatchset@localhost6.localdomain6> References: <20110314133403.27435.7901.sendpatchset@localhost6.localdomain6> Subject: [PATCH v2 2.6.38-rc8-tip 2/20] 2: X86 specific breakpoint definitions. Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2478 Lines: 77 Provides definitions for the breakpoint instruction and x86 specific uprobe info structure. Signed-off-by: Jim Keniston Signed-off-by: Srikar Dronamraju --- arch/x86/Kconfig | 3 +++ arch/x86/include/asm/uprobes.h | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+), 0 deletions(-) create mode 100644 arch/x86/include/asm/uprobes.h diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 0256aed..610c5e5 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -237,6 +237,9 @@ config ARCH_CPU_PROBE_RELEASE def_bool y depends on HOTPLUG_CPU +config ARCH_SUPPORTS_UPROBES + def_bool y + source "init/Kconfig" source "kernel/Kconfig.freezer" diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h new file mode 100644 index 0000000..5026359 --- /dev/null +++ b/arch/x86/include/asm/uprobes.h @@ -0,0 +1,40 @@ +#ifndef _ASM_UPROBES_H +#define _ASM_UPROBES_H +/* + * Userspace Probes (UProbes) for x86 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) IBM Corporation, 2008-2010 + * Authors: + * Srikar Dronamraju + * Jim Keniston + */ + +typedef u8 uprobe_opcode_t; +#define MAX_UINSN_BYTES 16 +#define UPROBES_XOL_SLOT_BYTES 128 /* to keep it cache aligned */ + +#define UPROBES_BKPT_INSN 0xcc +#define UPROBES_BKPT_INSN_SIZE 1 + +#ifdef CONFIG_X86_64 +struct uprobe_arch_info { + unsigned long rip_rela_target_address; +}; +#else +struct uprobe_arch_info {}; +#endif +#endif /* _ASM_UPROBES_H */ -- 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/