From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264911AbUEKRPT (ORCPT ); Tue, 11 May 2004 13:15:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264886AbUEKRNz (ORCPT ); Tue, 11 May 2004 13:13:55 -0400 Received: from x35.xmailserver.org ([69.30.125.51]:5801 "EHLO x35.xmailserver.org") by vger.kernel.org with ESMTP id S264911AbUEKRMs (ORCPT ); Tue, 11 May 2004 13:12:48 -0400 X-AuthUser: davidel@xmailserver.org Date: Tue, 11 May 2004 10:12:46 -0700 (PDT) From: Davide Libenzi X-X-Sender: davide@bigblue.dev.mdolabs.com To: Linux Kernel Mailing List cc: Andrew Morton , Linus Torvalds Subject: [patch] really-ptrace-single-step Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This patch lets a ptrace process on x86 to "see" the instruction following the INT #80h op. - Davide arch/i386/kernel/entry.S | 2 +- include/asm-i386/thread_info.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) Index: arch/i386/kernel/entry.S =================================================================== RCS file: /usr/src/bkcvs/linux-2.5/arch/i386/kernel/entry.S,v retrieving revision 1.83 diff -u -r1.83 entry.S --- arch/i386/kernel/entry.S 12 Apr 2004 20:29:12 -0000 1.83 +++ arch/i386/kernel/entry.S 11 May 2004 06:35:29 -0000 @@ -354,7 +354,7 @@ # perform syscall exit tracing ALIGN syscall_exit_work: - testb $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT), %cl + testb $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP), %cl jz work_pending sti # could let do_syscall_trace() call # schedule() instead Index: include/asm-i386/thread_info.h =================================================================== RCS file: /usr/src/bkcvs/linux-2.5/include/asm-i386/thread_info.h,v retrieving revision 1.19 diff -u -r1.19 thread_info.h --- include/asm-i386/thread_info.h 12 Apr 2004 20:29:12 -0000 1.19 +++ include/asm-i386/thread_info.h 11 May 2004 06:34:47 -0000 @@ -165,7 +165,7 @@ /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK \ - (0x0000FFFF & ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)) + (0x0000FFFF & ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)) #define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */ /*