From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FOgQY-0003ay-Lf for qemu-devel@nongnu.org; Wed, 29 Mar 2006 14:33:58 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FOgQW-0003aP-T8 for qemu-devel@nongnu.org; Wed, 29 Mar 2006 14:33:58 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FOgQW-0003aK-PV for qemu-devel@nongnu.org; Wed, 29 Mar 2006 14:33:56 -0500 Received: from [65.74.133.6] (helo=mail.codesourcery.com) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1FOgSX-0004Mt-8f for qemu-devel@nongnu.org; Wed, 29 Mar 2006 14:36:01 -0500 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] Add gcc 4.0 support Date: Wed, 29 Mar 2006 20:33:52 +0100 References: <20060215122501.GA29709@networkno.de> <20060329095947.GE31939@networkno.de> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200603292033.53117.paul@codesourcery.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Wednesday 29 March 2006 18:03, John Davidorff Pell wrote: > I was just thinking that by enabling the required feature > individually, someone else could choose -O0 and not have to > investigate why it fails. Its not like its a big deal, though. :-) Like most things dyngen relies on this isn't a feature as such. There's no gcc option that says "make sure this function doesn't have a stack frame". It just happens that at with optimisation turned on this is generally true. Also, the gcc -O2 option is more than the sum of the other options it enables. Paul