From patchwork Wed Dec 27 06:05:19 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 853059 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=sourceware.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=libc-alpha-return-88616-incoming=patchwork.ozlabs.org@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.b="KfGgGK1V"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3z62Rt2B2Hz9s7h for ; Wed, 27 Dec 2017 17:06:50 +1100 (AEDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:date:message-id:in-reply-to:references :cc:from:to; q=dns; s=default; b=PZRBD0lzk0xlovpdt0Usx5Yr/7G41gd Al4WoxDJOYQb7psOI5xPEy+sEedvYJcRi9/hPfNyHIwYhwrLw5wzPwvyPmwFPX7r 2Bxfj5PU0r2HfU88h7U1JQlwkgcZSCwoiaqe1BQ3bY542c0EJc+RwqgPq65bkLBM QNZT2qTwm7a4= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:date:message-id:in-reply-to:references :cc:from:to; s=default; bh=oY3G+DE0vz8gAfBOclqfaqUNAbs=; b=KfGgG K1VvIbMWEG2J8JG1nM7u8WR2PwojusRlAANo3c9+FYCF3xVW4LSXbZBrnRJAElEJ kjOPdKW01SoYyuOd1hBSmFcFP3MyvVS5Zu08lUj36fIWYTPhPEAcET4zUfLQH177 +s7Vg0C4pUggPz4WObwSnm3ZyVZQga1PBGdsCs= Received: (qmail 59730 invoked by alias); 27 Dec 2017 06:06:01 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 59683 invoked by uid 89); 27 Dec 2017 06:06:01 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-26.3 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: mail-pf0-f196.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:date:message-id:in-reply-to:references :cc:from:to; bh=Ry+lvcI0nPpSJyoTi8MoLgZtsed4M+SXxuq3GMxkvII=; b=ffd0k6BDFo9gwLGV6JV+gPQ2nq5pSS6lukFky3McOtpoA5VZ/iKjko6f1GRv3VzrML i/DURZ243kJaG3GC18jCuYMjQNl/SZ0lT3+whSw4+PpEF8tONSPwXR+wEhEWUScteKNX aOiKPgUKmEB/nj01kJFe89o35D2Gaasa5WLd5tN83w3i11zXpFpZMaFhyRsjAW2L2s+Y 4PHFacbDACvn3sRQQH1H/HaqBicK+ouXrcowYTImyNW7n1fpRNFo+7vwHKUGxO9AcB1a Rc7Xhbg9YJHvGKOIHCVeegdUWD3+iqwMKzmuiBjFzsKDBB9MtGExQLJb9Vq6YZywBrCw evZQ== X-Gm-Message-State: AKGB3mIufnXEtqWPo/C86L3r8/Pj4KkIW3K38yiAOUIPXOWqXZ2/Przh 4lQ8PQlaLDe761CSzPKMUg5eTA== X-Google-Smtp-Source: ACJfBot8ZZ7fIiqxp1xoi8zragqIQxGH+g+kaUWPq+N46wPF0kdGoJ6/ByHK1wVyK2ZQnQVxr/296w== X-Received: by 10.101.72.206 with SMTP id o14mr5403721pgs.324.1514354758456; Tue, 26 Dec 2017 22:05:58 -0800 (PST) Subject: [PATCH v3 04/19] Skeleton documentation for the RISC-V port Date: Tue, 26 Dec 2017 22:05:19 -0800 Message-Id: <20171227060534.3998-5-palmer@dabbelt.com> In-Reply-To: <20171227060534.3998-1-palmer@dabbelt.com> References: <20171227060534.3998-1-palmer@dabbelt.com> Cc: patches@groups.riscv.org, Palmer Dabbelt From: Palmer Dabbelt To: libc-alpha@sourceware.org During the upstreaming process it was suggested that I add a handful of small documentation entries about the RISC-V port, which I've collected here. --- NEWS | 19 +++++++++++++++---- README | 2 ++ manual/math.texi | 2 +- 3 files changed, 18 insertions(+), 5 deletions(-) diff --git a/NEWS b/NEWS index 95f368340b2d..e46facc728cc 100644 --- a/NEWS +++ b/NEWS @@ -40,13 +40,13 @@ Major new features: process aborts as the result of assertion failures. * On platforms where long double has the IEEE binary128 format (aarch64, - alpha, mips64, s390 and sparc), the math library now implements _Float128 - interfaces for that type, as defined by ISO/IEC TS 18661-3:2015. These - are the same interfaces added in version 2.26 for some platforms where + alpha, mips64, riscv, s390 and sparc), the math library now implements + _Float128 interfaces for that type, as defined by ISO/IEC TS 18661-3:2015. + These are the same interfaces added in version 2.26 for some platforms where this format is supported but is not the format of long double. * On platforms with support for _Float64x (aarch64, alpha, i386, ia64, - mips64, powerpc64le, s390, sparc and x86_64), the math library now + mips64, powerpc64le, riscv, s390, sparc and x86_64), the math library now implements interfaces for that type, as defined by ISO/IEC TS 18661-3:2015. These are corresponding interfaces to those supported for _Float128. @@ -69,6 +69,17 @@ Major new features: collation ordering. Previous glibc versions used locale-specific ordering, the change might break systems that relied on that. +* Support for the RISC-V ISA running on Linux has been added. This port + requires at least binutils-2.30, gcc-7.3.0, and linux-4.15; and is supported + for the following ISA and ABI pairs: + + - rv32imac ilp32 + - rv32imafdc ilp32 + - rv32imafdc ilp32d + - rv64imac lp64 + - rv64imafdc lp64 + - rv64imafdc lp64d + Deprecated and removed features, and other changes affecting compatibility: * On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer diff --git a/README b/README index d0e99ea7d5a0..425a82956fc8 100644 --- a/README +++ b/README @@ -39,6 +39,8 @@ The GNU C Library supports these configurations for using Linux kernels: powerpc64*-*-linux-gnu Big-endian and little-endian. s390-*-linux-gnu s390x-*-linux-gnu + riscv32-*-linux-gnu + riscv64-*-linux-gnu sh[34]-*-linux-gnu sparc*-*-linux-gnu sparc64*-*-linux-gnu diff --git a/manual/math.texi b/manual/math.texi index a9f2a9813832..d19a14b47dc3 100644 --- a/manual/math.texi +++ b/manual/math.texi @@ -70,7 +70,7 @@ provided for @code{_Float32}, @code{_Float64} and @code{_Float32x} on all platforms. It is also provided for @code{_Float128} and @code{_Float64x} on powerpc64le (PowerPC 64-bits little-endian), x86_64, x86, ia64, -aarch64, alpha, mips64, s390 and sparc. +aarch64, alpha, mips64, riscv, s390 and sparc. @menu * Mathematical Constants:: Precise numeric values for often-used