From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6965 invoked by alias); 14 May 2009 14:46:50 -0000 Received: (qmail 6776 invoked by uid 22791); 14 May 2009 14:46:48 -0000 X-SWARE-Spam-Status: No, hits=-1.2 required=5.0 tests=AWL,BAYES_00,FS_NEW_XXX,SARE_MSGID_LONG40,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mail-bw0-f213.google.com (HELO mail-bw0-f213.google.com) (209.85.218.213) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 14 May 2009 14:46:43 +0000 Received: by bwz9 with SMTP id 9so1524331bwz.24 for ; Thu, 14 May 2009 07:46:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.66 with SMTP id b2mr1748118fas.3.1242312399511; Thu, 14 May 2009 07:46:39 -0700 (PDT) In-Reply-To: <130942881126505163@unknownmsgid> References: <8502af3c0905140623nece4f1dv1e03c2c841c59e42@mail.gmail.com> <130942881126505163@unknownmsgid> Date: Thu, 14 May 2009 14:46:00 -0000 Message-ID: <8502af3c0905140746h7042ba95ja458737b87e82f81@mail.gmail.com> Subject: Re: new port From: Florent DEFAY To: Anthony Berent , jeremy.bennett@embecosm.com Cc: gdb@sourceware.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2009-05/txt/msg00078.txt.bz2 Thank you very much for the tips. You are right. When I step into the function with stepi: (1) If I try 'info frame' just before the first instruction, then results an internal error. (2) If I try 'info frame' just after the first intsuction, then I get frame information. I set up traces to know which functions GDB crosses in my target-tdep.c. I can tell that skip_prologue is called only after processing the first instruction, I think it should be called before, shouldn't it? Thank you for the HOWTO, I jump on it. Regards. Florent 2009/5/14 Anthony Berent : > Florent, > > I have also been porting to a new architecture, and recently solved similar > problems with next. The way next works is that, after a step, it checks > whether an extra frame has been added to the stack. If it has, and various > other checks are satisfied, then it places a breakpoint on the return > address and runs on. Otherwise it simply stops after the first step. > > Try stepping into the function using stepi, stopping at its first > instruction, and then having a look at the stack frames (using bt and "info > frames"). If these look wrong then that is probably your problem. > > - Anthony > > -----Original Message----- > From: gdb-owner@sourceware.org [mailto:gdb-owner@sourceware.org] On Behalf > Of Florent DEFAY > Sent: 14 May 2009 14:24 > To: gdb@sourceware.org > Subject: new port > > Hi, > > I work on porting GDB to a new arch. > I already ported GCC. > > I meet some problems, I need help. > > At the moment, I can use most of basic GDB commands. > > I can set breakpoints and stop on them. I can set breakpoints on function > names. > I can step. I can read locals and registers. > > When I use the command 'next', it should step and skip functions. The > problem is that > indeed it steps but it does not skip functions. It step into the function. > > Please help. > > > Regards. > > Florent > > >