From owner-freebsd-current@freebsd.org Wed May 10 22:34:11 2017 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 84E26D66ABD for ; Wed, 10 May 2017 22:34:11 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: from mail-qt0-x235.google.com (mail-qt0-x235.google.com [IPv6:2607:f8b0:400d:c0d::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3E8FE1142; Wed, 10 May 2017 22:34:11 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: by mail-qt0-x235.google.com with SMTP id t26so4412732qtg.0; Wed, 10 May 2017 15:34:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=qx1SAPyYk1KBz228AEt6PlUPkCkzbEcg0/E89GDcH00=; b=ObMU4rEpiYWLN7LQ2nHWYPXkRNrlEPpAVa6GPV5Pvc43zYXrtdgo6M8zWmT5ao5HSU bxH8GFPT/VOjkhKGJF+nUI/8P6UG6ZGPm1MkuU1ux5nhMsCB6gi0F1JxHkYKyxrjl10L kkr2OEXYFBOo3XRGSiGdBP9KTuOLMHU6s9vFGPmaaVcFfwrKSR45W0Db7NZo6/ZPZEnZ 4TGGCD6rOf9b2EavcTmUSqU8PSXBtAyHcHc+/sfNf4SjZmsaoylsQ/58St0S/XJIkV4M 384wbPDD+2nyshiwEVC5oJj0LMhjmAMWm8TUAzlVL+3d9gliSK7nQyu2rVaw7VYFHGz/ /Zmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=qx1SAPyYk1KBz228AEt6PlUPkCkzbEcg0/E89GDcH00=; b=gCDyfiUrFAHNUQ5/4KURYGYsBb8dobs1lRml5IeQcH1q3RaHmx5gGy/W9AoS7M/nNG rur+zrTo4EBGQiJQuZ1jaEQqe+6CTzpfX3O0IHL8XzqxYEc6QRWyAHRv8KzQqFdJyPmN +FSpumoDd7kNKd7tIXkuTtU6SHYtXG3uTmPFtbTJH6gB8RACTqT/aTCCXkcQzcxGjEuz DN+wSbcGQLNhmEfa2n2w6rMttTCiHcaUEkf1rv1KUUQHbPO5Vcp5OMCBzl0HnJ+8W2y8 1boJSH8fYxO8v8k0Feo1/7o4OLhX32LDsYSJ3JHcngEgHPqLj5tA6jk8lVefxioIS1Sg F9AA== X-Gm-Message-State: AODbwcAqTfB/DGCHTLNQ9Rtfio6sfM2VXGXV4vMvZPo9doldRbqXUKwe BVvplF7BpZw82i9tbslCMYadlnQGmvcoAA0= X-Received: by 10.237.59.168 with SMTP id r37mr963489qte.246.1494455650412; Wed, 10 May 2017 15:34:10 -0700 (PDT) MIME-Version: 1.0 Received: by 10.140.93.48 with HTTP; Wed, 10 May 2017 15:34:09 -0700 (PDT) In-Reply-To: <92582.1494442798@kaos.jnpr.net> References: <20170510063719.708fe322@freyja.zeit4.iv.bundesimmobilien.de> <5B5ED606-D287-463E-934D-D0BC52F845BD@gmail.com> <9bd356dd-970e-ae46-333e-1e21b3a408d6@FreeBSD.org> <08b858b2-b472-c097-3aa9-dd64ec7255dd@FreeBSD.org> <92582.1494442798@kaos.jnpr.net> From: Ngie Cooper Date: Wed, 10 May 2017 15:34:09 -0700 Message-ID: Subject: Re: make warning: ?: No such file or directory. To: "Simon J. Gerraty" Cc: Bryan Drewery , Renato Botelho , "O. Hartmann" , freebsd-current Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 May 2017 22:34:11 -0000 On Wed, May 10, 2017 at 11:59 AM, Simon J. Gerraty wrote: > Bryan Drewery wrote: >> Oh now I get it too after updating system from head from r317177 to >> r318116. So it seems to be a bug in bmake-20170420. > > What's in your env? > Eg. > > env | grep MAKE > ls As I noted in the src commit, I think r318161 addresses the issue (also identified by Coverity as CID: 1374641). Basically, buf2 was in scope for the conditional as stack memory, `path` took the address buf2 and used it out of scope (which may have triggered the compiler to optimize/evaluate the code incorrectly since the case seemed impossible). Thanks, -Ngie