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d614a753 | 1 | /* Copyright (C) 2004-2020 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. | |
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 | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the 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 | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
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18 | |
19 | #include <sysdep.h> | |
20 | #define _ERRNO_H 1 | |
21 | #include <bits/errno.h> | |
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22 | #include <bits/wordsize.h> |
23 | #include <tcb-offsets.h> | |
24 | ||
25 | /* Clone the calling process, but without copying the whole address space. | |
26 | The calling process is suspended until the new process exits or is | |
27 | replaced by a call to `execve'. Return -1 for errors, 0 to the new process, | |
28 | and the process ID of the new process to the old process. */ | |
29 | ||
39507e4a | 30 | ENTRY (__libc_vfork) |
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31 | /* Do vfork system call. */ |
32 | svc SYS_ify (vfork) | |
33 | ||
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34 | /* Check for error. */ |
35 | lghi %r4,-4095 | |
36 | clgr %r2,%r4 | |
43513fb7 | 37 | jgnl SYSCALL_ERROR_LABEL |
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38 | |
39 | /* Normal return. */ | |
40 | br %r14 | |
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41 | PSEUDO_END (__libc_vfork) |
42 | ||
4f41c682 | 43 | #if IS_IN (libc) |
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44 | weak_alias (__libc_vfork, vfork) |
45 | strong_alias (__libc_vfork, __vfork) | |
73b4ce64 | 46 | libc_hidden_def (__vfork) |
39507e4a | 47 | #endif |