From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9903 invoked by alias); 4 Nov 2005 15:19:14 -0000 Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org Received: (qmail 9888 invoked by uid 22791); 4 Nov 2005 15:19:10 -0000 Received: from kleinhenz.com (HELO kleinhenz.com) (213.239.205.196) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Fri, 04 Nov 2005 15:19:10 +0000 Received: from [192.168.115.35] (p549956C7.dip.t-dialin.net [84.153.86.199]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "Simon Richter", Issuer "Kleinhenz Elektronik CA" (verified OK)) by kleinhenz.com (Postfix) with ESMTP id CAA8E4A800D; Fri, 4 Nov 2005 16:19:05 +0100 (CET) Message-ID: <436B7BE1.5040702@hogyros.de> Date: Fri, 04 Nov 2005 15:19:00 -0000 From: Simon Richter User-Agent: Debian Thunderbird 1.0.7 (X11/20051019) MIME-Version: 1.0 To: Dave Korn Cc: 'Daniel Jacobowitz' , 'Efim Monjak' , gdb@sources.redhat.com Subject: Re: break of close loop References: In-Reply-To: OpenPGP: url=http://www.hogyros.de/simon.asc Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigC0DDC47FA6D619E676905D79" X-SW-Source: 2005-11/txt/msg00102.txt.bz2 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigC0DDC47FA6D619E676905D79 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-length: 549 Hi, Dave Korn wrote: > The stub is probably implemented by placing a temp breakpoint immediately > after the instruction to be tested, but has negelected the fact that to handle > jumps you may need to place the temp breakpoint somewhere _other_ than > immediately after the instruction, The question at hand appears to be breakpoints placed on top of the instruction being stepped, as the instruction steps back to itself. This is especially common on architectures with a dedicated "decrement and jump if not zero" instruction. Simon --------------enigC0DDC47FA6D619E676905D79 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-length: 307 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iQCVAwUBQ2t74VYr4CN7gCINAQJrvAP/c40LTFZorjaZV2Vm+ObMPPxIS6+q2/yZ DsTK5g8QezjdrcNA/qk0qLSi6YnSJEN079sGDPhgHD/IIotRhyQvhooIjtDwl+Ip ADDAFU05PMdwLZ3zJ7LhAP3BVkytmNmw1BdxKl3OhAwOJM2/SFnqLe54VHfqat2Z sQB8aonFABg= =1HPm -----END PGP SIGNATURE----- --------------enigC0DDC47FA6D619E676905D79--