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 CF9E23857C53 for ; Tue, 14 Jul 2020 05:16:05 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org CF9E23857C53 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 (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1jvDIQ-0003ZX-IT; Tue, 14 Jul 2020 07:16:02 +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 1jvDIQ-000TEZ-FS; Tue, 14 Jul 2020 07:16:02 +0200 Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 49BC42A1610; Tue, 14 Jul 2020 07:16:31 +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 P1w-vqHPC7HD; Tue, 14 Jul 2020 07:16:30 +0200 (CEST) Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id A94D82A165B; Tue, 14 Jul 2020 07:16:30 +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 o004L9tiBYoX; Tue, 14 Jul 2020 07:16:30 +0200 (CEST) Received: from shuber-nb-linux.eb.localhost (unknown [10.10.171.22]) by mail.embedded-brains.de (Postfix) with ESMTPSA id 71F242A1610; Tue, 14 Jul 2020 07:16:30 +0200 (CEST) Subject: Re: fenv support vs. SMP systems To: Joseph Myers , Joel Sherrill Cc: Newlib References: From: Sebastian Huber Message-ID: <25280ca9-a9bb-5250-72c2-413e5cdf8fed@embedded-brains.de> Date: Tue, 14 Jul 2020 07:16:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: 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 0.102.3/25872/Mon Jul 13 16:11:24 2020) X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, 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, 14 Jul 2020 05:16:08 -0000 On 13/07/2020 19:16, Joseph Myers wrote: > On Mon, 13 Jul 2020, Joel Sherrill wrote: > >> It does use the term "system variable" but that doesn't scope it to >> process or thread. > C11 (the first version of ISO C to introduce threads) says "The > floating-point environment has thread storage duration. The initial sta= te > for a thread=E2=80=99s floating-point environment is the current state = of the > floating-point environment of the thread that creates it at the time of > creation.". Thanks for the clarification. Now I remember that I added this=20 information to the RISC-V ABI description some time ago: https://github.com/riscv/riscv-elf-psabi-doc/commit/bd8211964c20fbbc96fff= 743684f04e86732d1e5#diff-b74abb1c6b89ba2de7129c8fbae8bd11