From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25740 invoked by alias); 20 Oct 2008 00:10:24 -0000 Received: (qmail 25722 invoked by uid 22791); 20 Oct 2008 00:10:23 -0000 X-Spam-Check-By: sourceware.org Received: from mail.codesourcery.com (HELO mail.codesourcery.com) (65.74.133.4) by sourceware.org (qpsmtpd/0.31) with ESMTP; Mon, 20 Oct 2008 00:09:48 +0000 Received: (qmail 13090 invoked from network); 20 Oct 2008 00:09:46 -0000 Received: from unknown (HELO orlando.local) (pedro@127.0.0.2) by mail.codesourcery.com with ESMTPA; 20 Oct 2008 00:09:46 -0000 From: Pedro Alves To: Michael Snyder Subject: Re: [reverse/record] adjust_pc_after_break in reverse execution mode? Date: Mon, 20 Oct 2008 00:10:00 -0000 User-Agent: KMail/1.9.9 Cc: "gdb-patches@sourceware.org" , teawater References: <200810180210.16346.pedro@codesourcery.com> <48FBB718.4040706@vmware.com> In-Reply-To: <48FBB718.4040706@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200810200109.55661.pedro@codesourcery.com> X-IsSubscribed: yes 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 X-SW-Source: 2008-10/txt/msg00477.txt.bz2 On Sunday 19 October 2008 23:39:20, Michael Snyder wrote: > After codgitating for a bit (that's "thinking" when you're over 50), > I've decided that you're right. > > However, I have a new concern -- I'm worried about what it will do > when it's replaying but going forward. > > Could you possibly revisit your test and see what it does > if you record all the way to line 9 or 10, then back up > to line 6, then continue with breakpoints at 6 and 7? Eh, you're right. It's broken. (gdb) record (gdb) b 6 Breakpoint 2 at 0x8048352: file nop.c, line 6. (gdb) b 7 Breakpoint 3 at 0x8048353: file nop.c, line 7. (gdb) n Breakpoint 3, main () at nop.c:7 7 asm ("nop"); (gdb) n 8 asm ("nop"); (gdb) 9 asm ("nop"); (gdb) n 10 } (gdb) rc Continuing. Breakpoint 3, main () at nop.c:7 7 asm ("nop"); (gdb) rn No more reverse-execution history. main () at nop.c:6 6 asm ("nop"); (gdb) n Breakpoint 2, main () at nop.c:6 6 asm ("nop"); (gdb) 8 asm ("nop"); (gdb) 9 asm ("nop"); (gdb) -- Pedro Alves