From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 105053 invoked by alias); 23 Mar 2017 16:19:54 -0000 Mailing-List: contact newlib-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: newlib-owner@sourceware.org Received: (qmail 104937 invoked by uid 89); 23 Mar 2017 16:19:53 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.5 required=5.0 tests=AWL,BAYES_50,KAM_LAZY_DOMAIN_SECURITY,RP_MATCHES_RCVD autolearn=no version=3.3.2 spammy=edward, Edward, arguing, UD:ieeefp.h X-HELO: mailrelay.anl.gov Received: from mailrelay.anl.gov (HELO mailrelay.anl.gov) (130.202.101.22) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 23 Mar 2017 16:19:51 +0000 Received: from mailgateway.anl.gov (mailgateway.anl.gov [130.202.101.28]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mailrelay.anl.gov (Postfix) with ESMTPS id 58E952001CC for ; Thu, 23 Mar 2017 11:19:51 -0500 (CDT) Received: from hybrid-george.anl.gov (HELO GEORGE.anl.gov) ([146.137.81.15]) by mailgateway.anl.gov with ESMTP/TLS/DHE-RSA-AES256-SHA; 23 Mar 2017 11:19:27 -0500 Received: from tux.aps.anl.gov (146.137.81.4) by smtp.anl.gov (146.137.81.39) with Microsoft SMTP Server (TLS) id 14.3.266.1; Thu, 23 Mar 2017 11:19:27 -0500 Subject: Re: newlib ieeefp.h again To: Sebastian Huber , Joel Sherrill , References: <854be012-0f1f-b0bf-b7a8-bc615452fa0e@aps.anl.gov> <58D37229.70306@embedded-brains.de> CC: From: Andrew Johnson Message-ID: Date: Thu, 23 Mar 2017 16:19:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: <58D37229.70306@embedded-brains.de> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-SW-Source: 2017/txt/msg00213.txt.bz2 On 03/23/2017 01:58 AM, Sebastian Huber wrote: > On 23/03/17 00:17, Andrew Johnson wrote: >> Newlib's setting for _LDBL_EQ_DBL (in newlib.h) needs to change based on >> the particular CPU being compiled for. Here's some evidence: > > Yes, this definition of _LDBL_EQ_DBL is wrong, since it depends on the > multilib. For example we have in the GCC build tree: > > grep _LDBL_EQ_DBL `find -name newlib.h` > ./m68k-rtems4.12/m68040/softfp/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m68040/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m5208/newlib/newlib.h:#define _LDBL_EQ_DBL 1 > ./m68k-rtems4.12/m5329/newlib/newlib.h:#define _LDBL_EQ_DBL 1 > ./m68k-rtems4.12/m5206/newlib/newlib.h:#define _LDBL_EQ_DBL 1 > ./m68k-rtems4.12/m5407/newlib/newlib.h:#define _LDBL_EQ_DBL 1 > ./m68k-rtems4.12/softfp/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m68000/newlib/targ-include/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m68000/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/newlib/targ-include/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m5475/softfp/newlib/newlib.h:#define _LDBL_EQ_DBL 1 > ./m68k-rtems4.12/m5475/newlib/newlib.h:#define _LDBL_EQ_DBL 1 > ./m68k-rtems4.12/m68060/softfp/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m68060/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/mcpu32/newlib/newlib.h:/* #undef _LDBL_EQ_DBL */ > ./m68k-rtems4.12/m5307/newlib/newlib.h:#define _LDBL_EQ_DBL 1 Are there any other settings in those newlib.h files that change depending on the multilib? I would suggest checking the other CPU families too, better to fix any similar issues all at once... - Andrew -- Arguing for surveillance because you have nothing to hide is no different than making the claim, "I don't care about freedom of speech because I have nothing to say." -- Edward Snowdon