From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11183 invoked by alias); 15 Nov 2001 19:26:46 -0000 Mailing-List: contact gdb-help@sourceware.cygnus.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 11133 invoked from network); 15 Nov 2001 19:26:39 -0000 Received: from unknown (HELO thor.inter.net.il) (192.114.186.11) by sourceware.cygnus.com with SMTP; 15 Nov 2001 19:26:39 -0000 Received: from zaretsky (diup-218-23.inter.net.il [213.8.218.23]) by thor.inter.net.il (Mirapoint) with ESMTP id ABR77852; Thu, 15 Nov 2001 21:26:03 +0200 (IST) Date: Mon, 05 Nov 2001 06:38:00 -0000 From: "Eli Zaretskii" To: bauer@atlas.lcs.mit.edu Message-Id: <2110-Thu15Nov2001212616+0200-eliz@is.elta.co.il> X-Mailer: emacs 21.1.50 (via feedmail 8 I) and Blat ver 1.8.9 CC: gdb@sourceware.cygnus.com In-reply-to: <20011115125927.B3449@atlas.lcs.mit.edu> (message from Steven Bauer on Thu, 15 Nov 2001 12:59:27 -0500) Subject: Re: x86 hardware breakpoint question Reply-to: Eli Zaretskii References: <20011115125927.B3449@atlas.lcs.mit.edu> X-SW-Source: 2001-11/txt/msg00056.txt.bz2 > Date: Thu, 15 Nov 2001 12:59:27 -0500 > From: Steven Bauer > > Quick question, does gdb support hardware breakpoints on > x86 architectures? Current GDB snapshots and the pretest of GDB 5.1 should support them. What version do you use and on what platform? > I have been trying to get them to work keep > getting an unknown error. > > (gdb) hbreak *0x80485d9 > > .... > > warning: Cannot insert breakpoint 3: > Error accessing memory address 0x80485d9: Unknown error 4294967295. What is at the address *0x80485d9? (The unknown error simply says that the error code is -1, which means GDB couldn't insert the breakpoint.)