From owner-freebsd-threads@freebsd.org Wed Jul 31 19:27:54 2019 Return-Path: Delivered-To: freebsd-threads@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 F1065A685A for ; Wed, 31 Jul 2019 19:27:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 45zNk268qgz4DpV for ; Wed, 31 Jul 2019 19:27:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id D3549A6859; Wed, 31 Jul 2019 19:27:54 +0000 (UTC) Delivered-To: threads@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 D3166A6858 for ; Wed, 31 Jul 2019 19:27:54 +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) server-signature RSA-PSS (4096 bits) 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 45zNk2595wz4DpS for ; Wed, 31 Jul 2019 19:27:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9375766E4 for ; Wed, 31 Jul 2019 19:27:54 +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 x6VJRsw1010749 for ; Wed, 31 Jul 2019 19:27:54 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x6VJRsQq010748 for threads@FreeBSD.org; Wed, 31 Jul 2019 19:27:54 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: threads@FreeBSD.org Subject: [Bug 239475] Linking libthr with -nodefaultlibs statically can cause infinite recursion Date: Wed, 31 Jul 2019 19:27:54 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: threads X-Bugzilla-Version: 11.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: commit-hook@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: threads@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-Rspamd-Queue-Id: 45zNk268qgz4DpV X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [0.85 / 15.00]; local_wl_from(0.00)[freebsd.org]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_SPAM_SHORT(0.85)[0.848,0] X-BeenThere: freebsd-threads@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Threading on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Jul 2019 19:27:55 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239475 --- Comment #4 from commit-hook@freebsd.org --- A commit references this bug: Author: kib Date: Wed Jul 31 19:27:24 UTC 2019 New revision: 350481 URL: https://svnweb.freebsd.org/changeset/base/350481 Log: Avoid conflicts with libc symbols in libthr jump table. In some corner cases of static linking and unexpected libraries order on the linker command line, libc symbol might preempt the same libthr symbol, in which case libthr jump table points back to libc causing either infinite recursion or loop. Handle all of such symbols by using private libthr names for them, ensuring that the right pointers are installed into the table. In collaboration with: arichardson PR: 239475 Tested by: pho MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D21088 Changes: head/lib/libthr/thread/thr_attr.c head/lib/libthr/thread/thr_cancel.c head/lib/libthr/thread/thr_clean.c head/lib/libthr/thread/thr_cond.c head/lib/libthr/thread/thr_detach.c head/lib/libthr/thread/thr_equal.c head/lib/libthr/thread/thr_exit.c head/lib/libthr/thread/thr_fork.c head/lib/libthr/thread/thr_getthreadid_np.c head/lib/libthr/thread/thr_init.c head/lib/libthr/thread/thr_join.c head/lib/libthr/thread/thr_kill.c head/lib/libthr/thread/thr_main_np.c head/lib/libthr/thread/thr_mutex.c head/lib/libthr/thread/thr_mutexattr.c head/lib/libthr/thread/thr_once.c head/lib/libthr/thread/thr_private.h head/lib/libthr/thread/thr_rwlock.c head/lib/libthr/thread/thr_self.c head/lib/libthr/thread/thr_sig.c head/lib/libthr/thread/thr_spec.c --=20 You are receiving this mail because: You are the assignee for the bug.=