From owner-freebsd-bugs@freebsd.org Wed Sep 2 21:20:37 2020 Return-Path: Delivered-To: freebsd-bugs@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 583573CA6E1 for ; Wed, 2 Sep 2020 21:20:37 +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 4BhcKx1kXjz4K9f for ; Wed, 2 Sep 2020 21:20:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 399433CA6DF; Wed, 2 Sep 2020 21:20:37 +0000 (UTC) Delivered-To: bugs@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 395AD3CA64D for ; Wed, 2 Sep 2020 21:20:37 +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 4BhcKx0lWGz4KJF for ; Wed, 2 Sep 2020 21:20:37 +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 F16E710C05 for ; Wed, 2 Sep 2020 21:20:36 +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 082LKa9Q020195 for ; Wed, 2 Sep 2020 21:20:36 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 082LKa4f020194 for bugs@FreeBSD.org; Wed, 2 Sep 2020 21:20:36 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: bugs@FreeBSD.org Subject: [Bug 249070] Using backtrace() from libexecinfo causes program to fail with "libunwind: EHHeaderParser::decodeTableEntry: bad fde: CIE ID is not zero" Date: Wed, 02 Sep 2020 21:20:36 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: nicholas.h.briggs@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Sep 2020 21:20:37 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D249070 Bug ID: 249070 Summary: Using backtrace() from libexecinfo causes program to fail with "libunwind: EHHeaderParser::decodeTableEntry: bad fde: CIE ID is not zero" Product: Base System Version: 12.1-RELEASE Hardware: i386 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: nicholas.h.briggs@gmail.com This basic program #include #include int main(int argc, char *argv[]) { void *addrlist[20]; int n; n =3D backtrace(&(addrlist[0]), 20); exit(n); } fails: $ clang -o bt-clang bt.c -lexecinfo $ ./bt-clang libunwind: EHHeaderParser::decodeTableEntry: bad fde: CIE ID is not zero $ ldd ./bt-clang ./bt-clang: libexecinfo.so.1 =3D> /usr/lib/libexecinfo.so.1 (0x20443000) libc.so.7 =3D> /lib/libc.so.7 (0x20447000) libelf.so.2 =3D> /lib/libelf.so.2 (0x205d9000) libgcc_s.so.1 =3D> /lib/libgcc_s.so.1 (0x205f2000) $=20 The results seem to be independent of the compiler used -- * gcc (FreeBSD Ports Collection) 9.3.0 * FreeBSD clang version 8.0.1 (tags/RELEASE_801/final 366581) (based on LLVM 8.0.1) * clang version 12.0.0 Target: i386-portbld-freebsd12.1 $ uname -a FreeBSD flap 12.1-RELEASE-p8 FreeBSD 12.1-RELEASE-p8 GENERIC i386 --=20 You are receiving this mail because: You are the assignee for the bug.=