From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932742AbXIFUHy (ORCPT ); Thu, 6 Sep 2007 16:07:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932141AbXIFUDd (ORCPT ); Thu, 6 Sep 2007 16:03:33 -0400 Received: from smtp.polymtl.ca ([132.207.4.11]:39755 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932472AbXIFUDb (ORCPT ); Thu, 6 Sep 2007 16:03:31 -0400 Message-Id: <20070906200314.986455310@polymtl.ca> References: <20070906200228.086651361@polymtl.ca> User-Agent: quilt/0.46-1 Date: Thu, 06 Sep 2007 16:02:32 -0400 From: Mathieu Desnoyers To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org Cc: Mathieu Desnoyers , Christoph Hellwig , prasanna@in.ibm.com, ananth@in.ibm.com, anil.s.keshavamurthy@intel.com, davem@davemloft.net Subject: [patch 4/8] Immediate Values - Move Kprobes i386 restore_interrupt to kdebug.h Content-Disposition: inline; filename=immediate-values-move-kprobes-i386-restore-interrupt-to-kdebug-h.patch X-Poly-FromMTA: (dijkstra.casi.polymtl.ca [132.207.72.10]) at Thu, 6 Sep 2007 20:03:15 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Since the breakpoint handler is useful both to kprobes and immediate values, it makes sense to make the required restore_interrupt() available through asm-i386/kdebug.h. Signed-off-by: Mathieu Desnoyers CC: Christoph Hellwig CC: prasanna@in.ibm.com CC: ananth@in.ibm.com CC: anil.s.keshavamurthy@intel.com CC: davem@davemloft.net --- include/asm-i386/kdebug.h | 12 ++++++++++++ include/asm-i386/kprobes.h | 9 --------- 2 files changed, 12 insertions(+), 9 deletions(-) Index: linux-2.6-lttng/include/asm-i386/kdebug.h =================================================================== --- linux-2.6-lttng.orig/include/asm-i386/kdebug.h 2007-09-04 11:52:37.000000000 -0400 +++ linux-2.6-lttng/include/asm-i386/kdebug.h 2007-09-04 12:12:06.000000000 -0400 @@ -6,6 +6,9 @@ * from x86_64 architecture. */ +#include +#include + struct pt_regs; /* Grossly misnamed. */ @@ -25,4 +28,13 @@ enum die_val { DIE_PAGE_FAULT_NO_CONTEXT, }; +/* trap3/1 are intr gates for kprobes. So, restore the status of IF, + * if necessary, before executing the original int3/1 (trap) handler. + */ +static inline void restore_interrupts(struct pt_regs *regs) +{ + if (regs->eflags & IF_MASK) + local_irq_enable(); +} + #endif Index: linux-2.6-lttng/include/asm-i386/kprobes.h =================================================================== --- linux-2.6-lttng.orig/include/asm-i386/kprobes.h 2007-09-04 11:53:26.000000000 -0400 +++ linux-2.6-lttng/include/asm-i386/kprobes.h 2007-09-04 12:12:06.000000000 -0400 @@ -79,15 +79,6 @@ struct kprobe_ctlblk { struct prev_kprobe prev_kprobe; }; -/* trap3/1 are intr gates for kprobes. So, restore the status of IF, - * if necessary, before executing the original int3/1 (trap) handler. - */ -static inline void restore_interrupts(struct pt_regs *regs) -{ - if (regs->eflags & IF_MASK) - local_irq_enable(); -} - extern int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68