From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26669 invoked by alias); 10 Apr 2015 09:56:39 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 26600 invoked by uid 89); 10 Apr 2015 09:56:38 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Fri, 10 Apr 2015 09:56:37 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t3A9uaDO011902 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 10 Apr 2015 05:56:36 -0400 Received: from [127.0.0.1] (ovpn01.gateway.prod.ext.ams2.redhat.com [10.39.146.11]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t3A9uZos015798 for ; Fri, 10 Apr 2015 05:56:36 -0400 Message-ID: <55279E53.1040905@redhat.com> Date: Fri, 10 Apr 2015 09:56:00 -0000 From: Pedro Alves User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: gdb-patches@sourceware.org Subject: Re: [PATCH v2 01/23] Fix gdb.base/sigstep.exp with displaced stepping on software single-step targets References: <1428410990-28560-1-git-send-email-palves@redhat.com> <1428410990-28560-2-git-send-email-palves@redhat.com> In-Reply-To: <1428410990-28560-2-git-send-email-palves@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SW-Source: 2015-04/txt/msg00371.txt.bz2 On 04/07/2015 01:49 PM, Pedro Alves wrote: > TL;DR: > > When stepping over a breakpoint with displaced stepping, the core must > be notified of all signals, otherwise the displaced step fixup code > confuses a breakpoint trap in the signal handler for the expected trap > indicating the displaced instruction was single-stepped > normally/successfully. I'm fairly sure this is correct. With Yao's extra testing, I'm even more confident. I pushed this one in now. Thanks, Pedro Alves