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a945c346 | 1 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
e6923541 JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | // | |
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | // | |
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
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18 | // { dg-do run } |
19 | // { dg-additional-options "-pthread" { target pthread } } | |
3bfd0420 | 20 | // { dg-require-effective-target hosted } |
10ee46ad JW |
21 | |
22 | // Static init cannot detect recursion for gthreads targets without futexes | |
23 | // (and the futex case can only detect it if __libc_single_threaded==true). | |
24 | // { dg-skip-if "unsupported" { gthreads && { ! futex } } } | |
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25 | |
26 | // PR libstdc++/96817 | |
27 | ||
1ad08b64 JW |
28 | #include <exception> |
29 | #include <stdlib.h> | |
30 | ||
e6923541 JW |
31 | int init() |
32 | { | |
33 | #if __has_include(<sys/single_threaded.h>) | |
34 | // This deadlocks unless __libc_single_threaded is available in Glibc, | |
35 | // because __cxa_guard_acquire uses __gthread_active_p and the | |
36 | // multithreaded init can't detect recursion (see PR 97211). | |
37 | static int i = init(); | |
38 | #endif | |
39 | return 0; | |
40 | } | |
41 | ||
1ad08b64 JW |
42 | void clean_terminate() { _Exit(0); } |
43 | ||
e6923541 | 44 | int |
13feb023 | 45 | main () |
e6923541 | 46 | { |
1ad08b64 | 47 | std::set_terminate(clean_terminate); |
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48 | init(); |
49 | } |