From owner-freebsd-bugs@freebsd.org Sun May 21 04:08:22 2017 Return-Path: Delivered-To: freebsd-bugs@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 7891DD75FC6 for ; Sun, 21 May 2017 04:08:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 676DB14E8 for ; Sun, 21 May 2017 04:08:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v4L48L7U074180 for ; Sun, 21 May 2017 04:08:22 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 206990] powerpc (32-bit), projects/clang380-import vs. 11.0-CURRENT's sendsig: need to avoid signal delivery trashing the stack and so causing SIGSEGV Date: Sun, 21 May 2017 04:08:22 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: markmi@dsl-only.net X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 May 2017 04:08:22 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206990 --- Comment #13 from Mark Millard --- (In reply to Dimitry Andric from comment #10) I got a notice of the latest fix for covering the TARGET_ARCH=3Dpowerpc stack-handling issues for llvm bugzilla 26519: Comment # 33 on bug 26519 from Krzysztof Parzyszek The fix has been committed in master in r303257. I opened PR33070 to request merging it into 4.0.1. You are receiving this mail because: =E2=80=A2 You reported the bug. I've been using a version of the patch for some time and for buildworld it appears that with it powerpc and powerpc64 have a similar status: the one known area not working is handling of thrown C++ exceptions --for example the required dwarf information is incomplete so such programs crash handling thrown exceptions. As for buildkernel use for powerpc (32-bit): powerpc FreeBSD with a clang 4 based kernel build on the same machines fails at the /sbin/init attempt and then gets an alignment exception. (I've not tried a G4 or G3 yet.) But booting the kernel seems to work up to that point. Both the buildworld and the buildkernel results are great improvements for targeting 32-bit powerpc FreeBSD via clang. --=20 You are receiving this mail because: You are the assignee for the bug.=