From patchwork Thu Dec 2 16:28:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre-Marie de Rodat X-Patchwork-Id: 48398 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 BF662385AC36 for ; Thu, 2 Dec 2021 16:33:11 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BF662385AC36 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1638462791; bh=H9gG2w5qOrA6ClknuocxxEgOMRLwi5rD+wIGFZM/bY4=; h=Date:To:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=YWdaD1rJ6w1oj0+/85pnkDKHv6+tMxzI0EmLwu9TVsaShs37iKa+6TlaPMghRSybz yt6BE2khclHLOYXGrarpUjfDMrLSfCcXa+DSSBl5NTNBUGMMNzCZjkwJYbzishI5bu 2N3Pp1ddRmUUeRvTClsGQMJ4nEABa89PxPZVqDz0= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by sourceware.org (Postfix) with ESMTPS id 65EAA385BF80 for ; Thu, 2 Dec 2021 16:28:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 65EAA385BF80 Received: by mail-wm1-x32a.google.com with SMTP id d72-20020a1c1d4b000000b00331140f3dc8so205134wmd.1 for ; Thu, 02 Dec 2021 08:28:40 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=H9gG2w5qOrA6ClknuocxxEgOMRLwi5rD+wIGFZM/bY4=; b=qJQm9o4F7VuLHdYOWmwkdjmhuaU4eSi+Lrs5RFnkcP1pGkzH5QEnPawY3uWvkoBBic 0wxPIuUmBpT+YJbHGLDHX4ei+J5aJknM1Q7L3ErBOzLBdTCZVYIZjb6TlPdvu07JBWnu JGl7pCHEM6KRifJG9FkIO3z5sMUU6JCW65eEYFVOX5ge6XpIgV/1vBrN6Z4v/VBugFn4 OU5sIInNcOeios/eX4KEA9f6OHV2KLqHVI+Fn6CfNqoc1WT/eDS4CChTLj1Lgr6hF+vK DNZ10JDfhelxGkb/Jb66ErhG90VYhT+IxXCQhOscY/7Rbg1H64BrlKuq/tSwIM+JMH+2 2WPg== X-Gm-Message-State: AOAM533kQ75w37gQfXm44ogAobgAvCmP/qCUTpAU+QMRVnGpVDQKbth0 QpgK8yePN+dtDD1mC9bg6KKeetstymAb5w== X-Google-Smtp-Source: ABdhPJzm8uuNy1Kg7pdMU0heXEPpnIR9LQzHXQ7IlXnUuJxWSVT0a9LlqBdcSJkBdDSBFHnGkkHqgg== X-Received: by 2002:a05:600c:21cd:: with SMTP id x13mr7777512wmj.52.1638462519473; Thu, 02 Dec 2021 08:28:39 -0800 (PST) Received: from adacore.com ([45.147.211.82]) by smtp.gmail.com with ESMTPSA id i15sm3056631wmq.18.2021.12.02.08.28.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 08:28:38 -0800 (PST) Date: Thu, 2 Dec 2021 16:28:37 +0000 To: gcc-patches@gcc.gnu.org Subject: [Ada] Add contract to Ada.Task_Identification.Activation_Is_Complete Message-ID: <20211202162837.GA2156244@adacore.com> MIME-Version: 1.0 Content-Disposition: inline X-Spam-Status: No, score=-13.2 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, 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: , X-Patchwork-Original-From: Pierre-Marie de Rodat via Gcc-patches From: Pierre-Marie de Rodat Reply-To: Pierre-Marie de Rodat Cc: Piotr Trojanek Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" Description of Activation_Is_Complete was amended in AI12-0231-1. This routine raises a Program_Error when called with Null_Task_Id. Add an explicit contract to make GNATprove aware of the restriction. Tested on x86_64-pc-linux-gnu, committed on trunk gcc/ada/ * libgnarl/a-taside.ads (Activation_Is_Complete): Add precondition. diff --git a/gcc/ada/libgnarl/a-taside.ads b/gcc/ada/libgnarl/a-taside.ads --- a/gcc/ada/libgnarl/a-taside.ads +++ b/gcc/ada/libgnarl/a-taside.ads @@ -92,6 +92,7 @@ is function Activation_Is_Complete (T : Task_Id) return Boolean with Volatile_Function, + Pre => T /= Null_Task_Id, Global => Tasking_State; private