1/*
2 * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * Copyright (c) 1997 by Apple Computer, Inc., all rights reserved
30 * Copyright (c) 1993 NeXT Computer, Inc.
31 *
32 */
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/ioctl.h>
37#include <sys/tty.h>
38#include <sys/conf.h>
39#include <sys/kauth.h>
40#include <sys/ucred.h>
41#include <sys/proc_internal.h>
42#include <sys/user.h>
43#include <kern/task.h>
44#include <kern/thread.h>
45#include <vm/vm_map.h>
46#include <machine/machine_routines.h>
47
48/* XXX should be elsewhere (cpeak) */
49extern void *get_bsduthreadarg(thread_t);
50extern int *get_bsduthreadrval(thread_t);
51extern void *find_user_regs(thread_t);
52
53int copywithin(void *src, void *dst, size_t count)
54{
55    bcopy(src, dst, count);
56    return 0;
57}
58
59void *get_bsduthreadarg(thread_t th)
60{
61    void *arg_ptr;
62    struct uthread *ut;
63
64    ut = get_bsdthread_info(th);
65
66    if (ml_thread_is64bit(th) == TRUE)
67        arg_ptr = (void *) saved_state64(find_user_regs(th));
68    else
69        arg_ptr = (void *) (ut->uu_arg);
70
71    return (arg_ptr);
72}
73
74int *get_bsduthreadrval(thread_t th)
75{
76    struct uthread *ut;
77
78    ut = get_bsdthread_info(th);
79    return (&ut->uu_rval[0]);
80}
81