From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40671) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1vX8-0002XZ-3Z for qemu-devel@nongnu.org; Thu, 26 Nov 2015 07:20:18 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a1vX6-0005EE-Mc for qemu-devel@nongnu.org; Thu, 26 Nov 2015 07:20:18 -0500 Received: from mail-vk0-x22c.google.com ([2607:f8b0:400c:c05::22c]:34826) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1vX6-0005E7-Gz for qemu-devel@nongnu.org; Thu, 26 Nov 2015 07:20:16 -0500 Received: by vkha189 with SMTP id a189so52383487vkh.2 for ; Thu, 26 Nov 2015 04:20:16 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <87r3jd3qjy.fsf@blackfin.pond.sub.org> References: <1448471956-66873-1-git-send-email-pbonzini@redhat.com> <5656E194.10609@redhat.com> <5656EBA3.90703@redhat.com> <87r3jd3qjy.fsf@blackfin.pond.sub.org> From: Peter Maydell Date: Thu, 26 Nov 2015 12:19:56 +0000 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: Re: [Qemu-devel] [PULL 0/9] Misc patches for QEMU 2.5-rc2 (2015-11-25) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Markus Armbruster Cc: Paolo Bonzini , QEMU Developers On 26 November 2015 at 12:15, Markus Armbruster wrote: > Peter Maydell writes: >> I don't see much point in documenting what we rely on >> if we can't rely on it and need to stop relying on it. > > "Can't" and "need" are too strong. The kernel can, and I fail to see > what makes us so special that we absolutely cannot. The kernel has the luxury of being able to say "we only compile with gcc". > For what it's worth, I'm sick and tired of patches "fixing" signed > shifts, and the unnecessary risk that comes with them. Me too. I just want us to fix this by getting the compiler authors to document that we can rely on this stuff, not just by silencing warnings in QEMU's makefiles. thanks -- PMM