From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) by sourceware.org (Postfix) with ESMTPS id D7B54385782F for ; Tue, 1 Sep 2020 16:32:14 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org D7B54385782F Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=embedded-brains.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=sebastian.huber@embedded-brains.de Received: from sslproxy03.your-server.de ([88.198.220.132]) by dedi548.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from ) id 1kD9Ce-0002d9-VF; Tue, 01 Sep 2020 18:32:13 +0200 Received: from [82.100.198.138] (helo=mail.embedded-brains.de) by sslproxy03.your-server.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1kD9Ce-000AAS-SY; Tue, 01 Sep 2020 18:32:12 +0200 Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 88D8E2A1610; Tue, 1 Sep 2020 18:32:14 +0200 (CEST) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id VtNyb5SrDAJC; Tue, 1 Sep 2020 18:32:14 +0200 (CEST) Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 4D3332A165B; Tue, 1 Sep 2020 18:32:14 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id jk7pSn0sfKbT; Tue, 1 Sep 2020 18:32:14 +0200 (CEST) Received: from shuber-nb-linux.eb.localhost (unknown [10.10.171.22]) by mail.embedded-brains.de (Postfix) with ESMTPSA id 2CD0D2A1610; Tue, 1 Sep 2020 18:32:14 +0200 (CEST) Subject: Re: [PATCH 0/3] ARM with only 32-bit floats do not have fast 64-bit FMA To: Keith Packard , newlib@sourceware.org References: <20200808223413.4015633-1-keithp@keithp.com> From: Sebastian Huber Message-ID: <1fc07c90-694b-01ea-cedc-0656eccdd827@embedded-brains.de> Date: Tue, 1 Sep 2020 18:32:11 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200808223413.4015633-1-keithp@keithp.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.102.4/25917/Tue Sep 1 15:24:01 2020) X-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, BODY_8BITS, KAM_DMARC_STATUS, NICE_REPLY_A, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: newlib@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Newlib mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Sep 2020 16:32:16 -0000 Hello, with the latest Newlib, I get a linker error in the RTEMS test suite: undefined reference to `fma' undefined reference to `fmaf' The following machine flags are used: '-march=3Darmv7-a', '-mthumb', '-mfpu=3Dneon', '-mfloat-abi=3Dhard',=20 '-mtune=3Dcortex-a9' It seems to be missing in the corresponding multilib: nm /build/rtems/6/arm-rtems6/lib/thumb/armv7-a+simd/hard/libm.a | grep fm= a lib_a-fmal.o: =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 U fma 00000000 T fmal lib_a-fmaxl.o: =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 U fmax 00000000 T fmaxl lib_a-s_fma.o: lib_a-s_fmax.o: 00000000 T fmax lib_a-sf_fma.o: lib_a-sf_fmax.o: 00000000 T fmaxf