49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
// Copyright (C) 2020-2021 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-do run }
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// { dg-additional-options "-pthread" { target pthread } }
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// Static init cannot detect recursion for gthreads targets without futexes
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// (and the futex case can only detect it if __libc_single_threaded==true).
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// { dg-skip-if "unsupported" { gthreads && { ! futex } } }
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// PR libstdc++/96817
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#include <exception>
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#include <stdlib.h>
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int init()
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{
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#if __has_include(<sys/single_threaded.h>)
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// This deadlocks unless __libc_single_threaded is available in Glibc,
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// because __cxa_guard_acquire uses __gthread_active_p and the
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// multithreaded init can't detect recursion (see PR 97211).
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static int i = init();
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#endif
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return 0;
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}
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void clean_terminate() { _Exit(0); }
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int
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main ()
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{
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std::set_terminate(clean_terminate);
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init();
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}
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