From patchwork Thu Apr 28 18:06:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 53327 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 5882A3949090 for ; Thu, 28 Apr 2022 18:23:24 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by sourceware.org (Postfix) with ESMTPS id E9879385DC2D for ; Thu, 28 Apr 2022 18:23:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org E9879385DC2D Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=rivosinc.com Received: by mail-pl1-x62f.google.com with SMTP id n8so5100721plh.1 for ; Thu, 28 Apr 2022 11:23:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; h=subject:date:message-id:mime-version:content-transfer-encoding:cc :from:to; bh=71IVigOClU/42xmVIogM+vBrCbLicND5CPecD5UcseI=; b=cDJkuVb9poPpCFda3bJbnPJfwYiRsSAta43+amHA8+n48erh4+Hnqp5BhmQC9juggx EKSVZXEPjWDiAWTg1ay0Mz6aNO9s34vXTw+BgEhGkINnqSXe1KHCJeHxgs/X6xKCjBJn 9ChyQGK3gQ9LnwxvzNhx9uu5TKP0rLFZ5a4JG0ofs6srYolPMPjFOVGUDlOYT2VZriDa wzcIrCZM3k85U35bpXjEyqQnL+fLBNcPQyzICIAm/nqBSLaxthi6vwF5xo9VB6GQ9iyZ SnZXtVOWkM5FnzcEosdyFsi7bgVs3smKZmGvX0AQ9xWr7f/Ho7XdkP43ByVoNe7pBDxU psXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:date:message-id:mime-version :content-transfer-encoding:cc:from:to; bh=71IVigOClU/42xmVIogM+vBrCbLicND5CPecD5UcseI=; b=gZ2uaUWSI+/sqZQAElYcsGET8cNH0j4V95MqIM3N3d/cfebX0gaNyhovt8ejvA/I2i XgIG7trP94a1hwSzSrfqQ0mxTjclxOQXXAyX9b/19nVkBCWZW9gvSGJHX6EtLTOenx9W uJIeG7EjgeyFNfsdKJaFXdnCYhXGUw5Wynz1nRHgmTLbJCkr9HEmoJ6ADS9aDKRCOhvR nC0xdtw+wwGwojhlsQ2XU5tGn88YEjXxHsr3VQO+2pp1/nEDIaM2FeDJC4aSOvabSUdR HFbbaghD47iIENqgMcdAxrYvbf9UipvQyhWPbeeDNJJMzGz/c3fbR3jw8q73aycP8tkt 637Q== X-Gm-Message-State: AOAM530xiDN6SDZSMS/w6V7pUMncyuQMJJecbtsWbUU/jBiAnbSeBFuP xnQ5ffu8NBxiu1NZ1lYePe7H6Q== X-Google-Smtp-Source: ABdhPJwWTPZEfvPU42/u/RZli+4qxG2oQra7RAPWgXAZxnEmu6dgT2IHp9C8uw19733mjScxo2bgzQ== X-Received: by 2002:a17:902:9b94:b0:156:2c08:14a5 with SMTP id y20-20020a1709029b9400b001562c0814a5mr34510048plp.60.1651170185839; Thu, 28 Apr 2022 11:23:05 -0700 (PDT) Received: from localhost ([12.3.194.138]) by smtp.gmail.com with ESMTPSA id mj19-20020a17090b369300b001d29a04d665sm11129811pjb.11.2022.04.28.11.23.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Apr 2022 11:23:04 -0700 (PDT) Subject: [wwwdocs] gcc-12/changes.html: Document the RISC-V libstdc++ -latomic detection Date: Thu, 28 Apr 2022 11:06:31 -0700 Message-Id: <20220428180630.6715-1-palmer@rivosinc.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 From: Palmer Dabbelt To: Kito Cheng , gcc-patches@gcc.gnu.org X-Spam-Status: No, score=-12.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" --- IMO this one is worth documenting too, not sure if it's too late for gcc-12's docs (due to those branch commits) so I haven't committed it yet to avoid any fallout. --- htdocs/gcc-12/changes.html | 3 +++ 1 file changed, 3 insertions(+) diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html index e9f132c0..e8a9cea2 100644 --- a/htdocs/gcc-12/changes.html +++ b/htdocs/gcc-12/changes.html @@ -746,6 +746,9 @@ function Multiply (S1, S2 : Sign) return Sign is support architecture testing marco and -march= parsing.
  • The option -mtune=thead-c906 is added to tune for T-HEAD c906 cores.
    • +
  • libstdc++'s no longer attempts to detect built-in atomics, + distributions that have out-of-tree workarounds for + -latomic should check their ABIs again.