From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ej1-x62e.google.com (mail-ej1-x62e.google.com [IPv6:2a00:1450:4864:20::62e]) by sourceware.org (Postfix) with ESMTPS id 3C15438618CC for ; Sat, 6 Mar 2021 09:12:48 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 3C15438618CC Received: by mail-ej1-x62e.google.com with SMTP id jt13so8591166ejb.0 for ; Sat, 06 Mar 2021 01:12:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=24Qh1KMJ0lbkCNLbGw30a5uiJuznVELvZI656oKUfRE=; b=ptEWjYeh1lyvcEAEqV4eD6brQDpCKfQ2IFomAgsWdZ8Zrmsa4uwOEv+S3cYm7ahvrD iQBFnSr25uQqHXru+aNbQ49IXy45CC756YLhz4oWSKCt5TJUXKSMNNxAolFKft4jCAaX R/+LN21pkx7XYjQwTfF26D5Je5k5X6MUm+idq+dQSSAsN6KdUmBmcy/yPR7yuK7gGyj2 w1U40ESv3qAHPtsmT3267LV0TTjzyisTki9VyUYgujeyzOvjOGkGMQgrAHjgjiTcrY1k pOAsLPSWMLqUSKWOqDNVvkG1u8j0fuBkxEw2HpF9RuJ56+v4y8Ab99AMhhidevlB74aD waAQ== X-Gm-Message-State: AOAM530hnAq5No0MaBNhfF5G2rdsYxL0DHzcPzKVQDJY4GJx4PV/1wok EgzDBtJvasT7GtTUfrV+jF4OhGNXA7pYTA== X-Google-Smtp-Source: ABdhPJzud7/SR5kz3wahvHOaK9e0l8GBmVfsZKCO+YcDSNtfchYFYeyHDNTkf/X3e0ltVlKSTqLXbA== X-Received: by 2002:a17:906:7f84:: with SMTP id f4mr5951048ejr.525.1615021967397; Sat, 06 Mar 2021 01:12:47 -0800 (PST) Received: from [192.168.2.121] (pd9ed5ff5.dip0.t-ipconnect.de. [217.237.95.245]) by smtp.gmail.com with ESMTPSA id ho11sm2886450ejc.112.2021.03.06.01.12.47 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 06 Mar 2021 01:12:47 -0800 (PST) Subject: Re: stack grow direction wrongly detected To: cygwin@cygwin.com References: <6eded5d3-93f3-7c98-5055-ee5ac2566bc8@gmail.com> <20210306100657.135a86aacf935a7f9e9a7847@nifty.ne.jp> From: Marco Atzeri Message-ID: <1cdde1c9-6db4-dff0-4488-28d8245d8d51@gmail.com> Date: Sat, 6 Mar 2021 10:12:46 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210306100657.135a86aacf935a7f9e9a7847@nifty.ne.jp> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: it Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, 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: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Mar 2021 09:12:49 -0000 On 06.03.2021 02:06, Takashi Yano via Cygwin wrote: > On Fri, 5 Mar 2021 21:29:49 +0100 > Marco Atzeri wrote: >> dir = depth ? find_stack_direction (addr, depth - 1) : 0; > ^^^^^^^^^^^^^^^^^^^^ > This calls find_stack_direction() recursively, isn't it? yeah. Never write when tired ... > >> return dir + dummy; >> } >> >> int >> main (int argc, char **argv) >> { >> return find_stack_direction (0, argc + !argv + 20) < 0; >> }])], > > Recursion depth seems to be increased to more than 20. probably to produce a portable result without going inline