From owner-freebsd-bugs@freebsd.org Fri Feb 26 21:50:03 2016 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 99F0BAB60FF for ; Fri, 26 Feb 2016 21:50:03 +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 71DAAEDC for ; Fri, 26 Feb 2016 21:50:03 +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 u1QLo3WN050585 for ; Fri, 26 Feb 2016 21:50:03 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 207325] projects/clang380-import for TARGET_ARCH=powerpc : c++ exceptions cause SEGV (9 line program) Date: Fri, 26 Feb 2016 21:50:03 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: markmi@dsl-only.net X-Bugzilla-Status: New 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: 2.1.20 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Feb 2016 21:50:03 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207325 --- Comment #3 from Mark Millard --- (In reply to Mark Millard from comment #2) In the operation there are a sequence of 2 errors, the 2nd of which gets the SEGV: A) The catch clause is rejected (or not even found to check?) so std::termi= nate is called B) During the std::terminate related execution the SEGV happens. (A) is the more fundamental issue but I'v not gotten far with it yet. In discovering the (A)/(B) split I did get the following information but I = will be deferring investigating this stage for now. . . During (B) an example backtrace from before the SEGV time frame is: #0 _Unwind_Resume_or_Rethrow (exc=3D0x41e12040) at /usr/src/gnu/lib/libgcc/../../../contrib/gcc/unwind.inc:255 #1 0x4188f2b8 in __cxxabiv1::__cxa_rethrow () at ../../.././../gcc-4.9-20160210/libstdc++-v3/libsupc++/eh_throw.cc:118 #2 0x418926c4 in __gnu_cxx::__verbose_terminate_handler () at ../../.././../gcc-4.9-20160210/libstdc++-v3/libsupc++/vterminate.cc:80 #3 0x4188edbc in __cxxabiv1::__terminate (handler=3D) at ../../.././../gcc-4.9-20160210/libstdc++-v3/libsupc++/eh_terminate.cc:47 #4 0x4188ee9c in std::terminate () at ../../.././../gcc-4.9-20160210/libstdc++-v3/libsupc++/eh_terminate.cc:57 #5 0x4188f250 in __cxxabiv1::__cxa_throw (obj=3D0xffffd090, tinfo=3D0x1810= d8c , dest=3D) at ../../.././../gcc-4.9-20160210/libstdc++-v3/libsupc++/eh_throw.cc:87 #6 0x01800a3c in main () at exception_test.cpp:5 --=20 You are receiving this mail because: You are the assignee for the bug.=