1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*
* OpenRISC sys_or32.c
*
* Linux architectural port borrowing liberally from similar works of
* others. All original copyrights apply as per the original source
* declaration.
*
* Modifications for the OpenRISC architecture:
* Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* This file contains various random system calls that
* have a non-standard calling sequence on some platforms.
* Since we don't have to do any backwards compatibility, our
* versions are done in the most "normal" way possible.
*/
#include <linux/errno.h>
#include <linux/syscalls.h>
#include <linux/mm.h>
#include <asm/syscalls.h>
/* These are secondary entry points as the primary entry points are defined in
* entry.S where we add the 'regs' parameter value
*/
asmlinkage long _sys_clone(unsigned long clone_flags, unsigned long newsp,
int __user *parent_tid, int __user *child_tid,
struct pt_regs *regs)
{
long ret;
/* FIXME: Is alignment necessary? */
/* newsp = ALIGN(newsp, 4); */
if (!newsp)
newsp = regs->sp;
ret = do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
return ret;
}
asmlinkage int _sys_fork(struct pt_regs *regs)
{
#ifdef CONFIG_MMU
return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
#else
return -EINVAL;
#endif
}
|
