Date: Tue, 20 Aug 2019 17:40:01 +0000 From: bugzilla-noreply@freebsd.org To: threads@FreeBSD.org Subject: [Bug 239550] std::thread::id uses pthread_equal in undefined ways not handled by _pthread_stubs Message-ID: <bug-239550-13406-F13itzWBBd@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-239550-13406@https.bugs.freebsd.org/bugzilla/> References: <bug-239550-13406@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239550 --- Comment #4 from commit-hook@freebsd.org --- A commit references this bug: Author: dim Date: Tue Aug 20 17:39:34 UTC 2019 New revision: 351253 URL: https://svnweb.freebsd.org/changeset/base/351253 Log: Pull in r368867 from upstream libc++ trunk (by Marshall Clow): Rework recursive_timed_mutex so that it uses __thread_id instead of using the lower-level __libcpp_thread_id. This is prep for fixing PR42918. Reviewed as https://reviews.llvm.org/D65895 Pull in r368916 from upstream libc++ trunk (by Marshall Clow): Fix thread comparison by making sure we never pass our special 'not a thread' value to the underlying implementation. Fixes PR#42918. This should fix std::thread::id::operator=3D=3D() attempting to call pthread_equal(3) with zero values. Reported by: andrew@tao11.riddles.org.uk PR: 239038, 239550 MFC after: 3 days Changes: head/contrib/libc++/include/__threading_support head/contrib/libc++/include/mutex head/contrib/libc++/include/thread head/contrib/libc++/src/mutex.cpp --=20 You are receiving this mail because: You are the assignee for the bug.=
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