From mboxrd@z Thu Jan 1 00:00:00 1970 From: stan Subject: Re: Setting format to SND_PCM_FORMAT_MU_LAW does not let me apply hardware parameters Date: Wed, 23 Jul 2008 17:46:12 -0700 Message-ID: <4887D0D4.9070608@cox.net> References: <3B6F5C9068D5864096EB291236C3386F02CE1664@xmb-sjc-21d.amer.cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from fed1rmmtao105.cox.net (fed1rmmtao105.cox.net [68.230.241.41]) by alsa0.perex.cz (Postfix) with ESMTP id D90D4248C5 for ; Thu, 24 Jul 2008 02:46:14 +0200 (CEST) In-Reply-To: <3B6F5C9068D5864096EB291236C3386F02CE1664@xmb-sjc-21d.amer.cisco.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: "Mitul Sen (misen)" Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Mitul Sen (misen) wrote: > Hi, > >> -----Original Message----- >> From: stan [mailto:ghjeold_i_mwee@cox.net] >> Sent: Wednesday, July 23, 2008 11:26 AM >> To: Mitul Sen (misen) >> Cc: alsa-devel@alsa-project.org >> Subject: Re: [alsa-devel] Setting format to >> SND_PCM_FORMAT_MU_LAW does not let me apply hardware parameters >> >> Mitul Sen (misen) wrote: >>> Hi, >>> >>> I have tried using gdb both from the command line as you >> suggested and >>> also from within eclipse. Even though I can step through >> the code and >>> break properly, I think there is some mismatch between the >> source code >>> and object code used by gdb. I say that because it sometimes steps >>> through code in a way that makes no sense. For example, I >> see that a >>> particular 'if' condition is satified and it goes into the >> 'if' clause >>> and then again goes into the 'else' clause that is not expected. Is >>> there any module that needs to be reloaded after building and >>> installing the shared library? I have done a clean make at >> all times, >>> checked timestamps, even rebooted the machine in case some driver >>> related data needs to be reloaded at startup but none of >> this has helped. /sbin/ldconfig refreshes the links for libraries. >> I suspect you are debugging optimized code. The optimizer >> rearranges and deletes instructions. Did you specify -O0 so >> that no optimization occurs? The other gotcha in the >> alsa-lib code is that some of the functions are actually >> macros. They cannot be stepped through. When you hit them >> in the debugger it is disconcerting. > > I did specify -O0 to disable optimizations. > That's weird. Don't have an explanation except yours, that you aren't debugging the code you think you are.