1/*
2 * Copyright (c) 2005-2007 Apple Inc. All rights reserved.
3 *
4 * @APPLE_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. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23/*
24 * _libc_initializer() is called from libSystem_initializer()
25 */
26
27#include <limits.h>
28#include <stdint.h>
29#include <string.h>
30#include <machine/cpu_capabilities.h>
31#include <TargetConditionals.h>
32
33#include "libc_private.h"
34
35extern void _program_vars_init(const struct ProgramVars *vars);
36extern void _libc_fork_init(const struct _libc_functions *funcs);
37extern void __atexit_init(void);
38extern void __confstr_init(const struct _libc_functions *funcs);
39extern void _init_clock_port(void);
40extern void __chk_init(void);
41extern void __xlocale_init(void);
42extern void __guard_setup(const char *apple[]);
43
44void
45_libc_initializer(const struct _libc_functions *funcs,
46	const char *envp[],
47	const char *apple[],
48	const struct ProgramVars *vars)
49{
50	_program_vars_init(vars);
51	_libc_fork_init(funcs);
52	__confstr_init(funcs);
53	__atexit_init();
54	_init_clock_port();
55	__chk_init();
56	__xlocale_init();
57	__guard_setup(apple);
58}
59
60
61void
62__libc_init(const struct ProgramVars *vars,
63	void (*atfork_prepare)(void),
64	void (*atfork_parent)(void),
65	void (*atfork_child)(void),
66	const char *apple[])
67{
68	const struct _libc_functions funcs = {
69		.version = 1,
70		.atfork_prepare = atfork_prepare,
71		.atfork_parent = atfork_parent,
72		.atfork_child = atfork_child,
73		.dirhelper = NULL,
74	};
75
76	return _libc_initializer(&funcs, NULL, apple, vars);
77}
78