debug: Improve mqueue.h fortify warnings with clang
[glibc.git] / posix / _Fork.c
blobd7435613daeceeacc96f010590b99dcf99dafdf8
1 /* _Fork implementation. Generic version.
2 Copyright (C) 2021-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #include <errno.h>
20 #include <unistd.h>
22 /* Clone the calling process, creating an exact copy. Return -1 for errors,
23 0 to the new process, and the process ID of the new process to the
24 old process.
25 Different than fork, this functions is marked as async-signal-safe by
26 POSIX (by Austin Group issue 62). */
27 pid_t
28 _Fork (void)
30 __set_errno (ENOSYS);
31 return -1;
33 libc_hidden_def (_Fork)
34 stub_warning (_Fork)