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04277e02 | 1 | /* Copyright (C) 2005-2019 Free Software Foundation, Inc. |
7756ba9d DH |
2 | |
3 | This file is part of the GNU C Library. | |
4 | ||
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 License as | |
7 | published by the Free Software Foundation; either version 2.1 of the | |
8 | License, or (at your option) any later version. | |
9 | ||
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. | |
14 | ||
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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <sysdep.h> | |
20 | #define _ERRNO_H 1 | |
21 | #include <bits/errno.h> | |
7756ba9d DH |
22 | #include <tcb-offsets.h> |
23 | ||
24 | /* Clone the calling process, but without copying the whole address space. | |
25 | The calling process is suspended until the new process exits or is | |
26 | replaced by a call to `execve'. Return -1 for errors, 0 to the new process, | |
27 | and the process ID of the new process to the old process. */ | |
28 | ||
29 | ENTRY (__vfork) | |
30 | ||
31 | #ifdef __NR_vfork | |
32 | DO_CALL (vfork, 0) | |
33 | #else | |
34 | DO_CALL (fork, 0) | |
35 | #endif | |
36 | addik r12,r0,-4095 | |
37 | cmpu r12,r12,r3 | |
38 | bgei r12,SYSCALL_ERROR_LABEL | |
39 | rtsd r15,8 | |
40 | nop | |
41 | ||
42 | PSEUDO_END (__vfork) | |
43 | libc_hidden_def (__vfork) | |
44 | ||
45 | weak_alias (__vfork, vfork) | |
491bb085 | 46 | strong_alias (__vfork, __libc_vfork) |