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