1/*
2 * Copyright (c) 2010 Apple 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#ifndef __LIBKERNEL_INIT_H
30#define __LIBKERNEL_INIT_H
31
32#include <mach/mach.h>
33
34typedef struct _libkernel_functions {
35	/* for mach dependencies on libc */
36	mach_port_t (*get_reply_port)(void);
37	void (*set_reply_port)(mach_port_t);
38
39	/* dlsym() for looking up catch_exception_raise */
40	void* (*dlsym)(void*, const char*);
41
42	/* placeholders for struct layout compatibility with Libsystem */
43	void *_placeholder_1;
44	void *_placeholder_2;
45
46	/* for setting errno in libc */
47	void (*set_errno)(int);
48	int* (*get_errno)(void);
49
50} _libkernel_functions_t;
51
52void _libkernel_init(_libkernel_functions_t fns);
53
54#endif // __LIBKERNEL_INIT_H`
55