From owner-freebsd-toolchain@freebsd.org Sun Nov 1 12:29:26 2020 Return-Path: Delivered-To: freebsd-toolchain@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 6D58644C3C7 for ; Sun, 1 Nov 2020 12:29:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4CPFjL2KQzz4564 for ; Sun, 1 Nov 2020 12:29:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 4E09744C5B4; Sun, 1 Nov 2020 12:29:26 +0000 (UTC) Delivered-To: toolchain@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4DD0A44C34F for ; Sun, 1 Nov 2020 12:29:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CPFjL1KvJz44sr for ; Sun, 1 Nov 2020 12:29:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 122E7181EF for ; Sun, 1 Nov 2020 12:29:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 0A1CTP2D008633 for ; Sun, 1 Nov 2020 12:29:25 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 0A1CTPA7008632 for toolchain@FreeBSD.org; Sun, 1 Nov 2020 12:29:25 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 250702] c++filt crashes on a particular symbol Date: Sun, 01 Nov 2020 12:29:25 +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: 12.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: dim@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: toolchain@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-toolchain@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Maintenance of FreeBSD's integrated toolchain List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Nov 2020 12:29:26 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250702 --- Comment #7 from Dimitry Andric --- It's pretty interesting, when I use this simple little demangle.cpp program: #include #include #include static char *demangle_buf; static size_t demangle_size =3D 2 * 1024; static void demangle(const char *mangled_name) { int status; char *demangled_name =3D abi::__cxa_demangle(mangled_name, demangle_buf, &demangle_size, &status); switch (status) { case 0: printf("%s -> %s\n", mangled_name, demangled_name); break; case -1: printf("error: memory allocation failure while demangling %s\n", mangled_name); break; case -2: printf("error: %s is not a valid C++ mangled name\n", mangled_name); break; case -3: printf("error: invalid argument(s) while demangling %s\n", mangled_name= ); break; default: printf("error: unknown status %d while demangling %s\n", status, mangled_name); break; } } int main(int argc, char *argv[]) { if (argc <=3D 1) { printf("Usage: %s mangled_name ...\n", argv[0]); return 1; } if ((demangle_buf =3D (char *)malloc(demangle_size)) =3D=3D NULL) { printf("Unable to allocate memory for demangle buffer\n"); return 1; } for (int i =3D 1; i < argc; ++i) { demangle(argv[i]); } free(demangle_buf); return 0; } it works just fine on the identifier: % ./demangle '_ZZ5func1vENK3$_0clEv' _ZZ5func1vENK3$_0clEv -> func1(void)::$_0::operator()(void) const However, it uses the *older* copy of elftoolchain's libelftc_dem_gnu3.c in contrib/libcxxrt! E.g. something has been broken in this area in more recent releases of elftoolchain... --=20 You are receiving this mail because: You are the assignee for the bug.=