From owner-freebsd-bugs@freebsd.org Fri Sep 25 13:51:39 2015 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 E4F04A09DDF for ; Fri, 25 Sep 2015 13:51:38 +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 CABAF1577 for ; Fri, 25 Sep 2015 13:51:38 +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 t8PDpcHU094644 for ; Fri, 25 Sep 2015 13:51:38 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203333] libexecinfo from base has trouble walking a simple stack Date: Fri, 25 Sep 2015 13:51:38 +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: 10.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: saper@saper.info X-Bugzilla-Status: New X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- 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: 7bit 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, 25 Sep 2015 13:51:39 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203333 Bug ID: 203333 Summary: libexecinfo from base has trouble walking a simple stack Product: Base System Version: 10.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: saper@saper.info security/tor-devel ports has a simple test case in C to check for correctness of the backtrace() reporting: https://gitweb.torproject.org/tor.git/tree/src/test/test_bt.sh https://gitweb.torproject.org/tor.git/tree/src/test/test_bt_cl.c https://gitweb.torproject.org/tor.git/tree/src/test/bt_test.py One needs https://trac.torproject.org/projects/tor/ticket/17151 applied to make sure tor's configure considers using external -lexecinfo When linking the test code against libexecinfo from base (using 10.1 amd64 r283908) a truncated result appears, because there is an unused reserved space on the stack: $ ./src/test/test-bt-cl crash ============================================================ T= 1443178736 Tor died: Caught signal 11 0x102c92d at /home/saper/sw/tor/src/test/test-bt-cl 0x8016a8997 at /lib/libthr.so.3 0x102c205 at /home/saper/sw/tor/src/test/test-bt-cl instead of > env LD_LIBRARY_PATH=/usr/local/lib ./src/test/test-bt-cl crash ============================================================ T= 1443178868 Tor died: Caught signal 11 0x8016a8997 at /lib/libthr.so.3 0x8016a81a8 at /lib/libthr.so.3 0x102c205 at /home/saper/sw/tor/src/test/test-bt-cl 0x102c27f at /home/saper/sw/tor/src/test/test-bt-cl 0x102c2cf at /home/saper/sw/tor/src/test/test-bt-cl 0x102c31f at /home/saper/sw/tor/src/test/test-bt-cl 0x102c462 at /home/saper/sw/tor/src/test/test-bt-cl 0x102c0f1 <_start+417> at /home/saper/sw/tor/src/test/test-bt-cl when using libexecinfo from ports. Is it possible to update libexecinfo in base to fix this problem? See also * https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200778 * https://trac.torproject.org/projects/tor/ticket/17151 -- You are receiving this mail because: You are the assignee for the bug.