From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6349 invoked by alias); 6 Jun 2011 09:56:56 -0000 Received: (qmail 6340 invoked by uid 22791); 6 Jun 2011 09:56:56 -0000 X-SWARE-Spam-Status: No, hits=-1.7 required=5.0 tests=AWL,BAYES_00,TW_BL,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mail.codesourcery.com (HELO mail.codesourcery.com) (38.113.113.100) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 06 Jun 2011 09:56:35 +0000 Received: (qmail 2508 invoked from network); 6 Jun 2011 09:56:34 -0000 Received: from unknown (HELO ?192.168.44.105?) (nathan@127.0.0.2) by mail.codesourcery.com with ESMTPA; 6 Jun 2011 09:56:34 -0000 Message-ID: <4DECA44F.9060502@codesourcery.com> Date: Mon, 06 Jun 2011 09:56:00 -0000 From: Nathan Sidwell User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110424 Lightning/1.0b2 Thunderbird/3.1.10 MIME-Version: 1.0 To: Ramana Radhakrishnan CC: GCC Patches Subject: Re: [ARM] TLS Descriptor support References: <4DC8DFF6.4000600@codesourcery.com> <4DDEF499.9090206@linaro.org> <4DE4BCE2.8050501@codesourcery.com> <4DECA2B9.3010101@codesourcery.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-06/txt/msg00379.txt.bz2 On 06/06/11 10:53, Ramana Radhakrishnan wrote: >> If you're asking something else, can you rephrase the question? > > Sorry if I wasn't too clear. My question really should have read "why > do we have to special case Thumb2" ? The linker should be able to > veneer the t-> a calls either through the veneering sequence (in case > of T1 without blx) or convert the bl to a blx (modulo the case with > out of range branches). As I said I'm probably missing something here. Maybe we don't. It just seems neater to emit blx on arches that have it. nathan -- Nathan Sidwell