1/*
2 * Copyright (c) 2007 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#ifdef __DYNAMIC__
29struct ProgramVars; /* forward reference */
30
31extern void pthread_init(void);				// from libc.a
32extern void __libc_init(const struct ProgramVars* vars);	// from libc.a
33extern void __keymgr_initializer(void);		// from libkeymgr.a
34extern void _dyld_initializer(void);		// from libdyld.a
35
36/*
37 * libsyscall_initializer() initializes all of libSystem.dylib <rdar://problem/4892197>
38 */
39static __attribute__((constructor))
40void libSystem_initializer(int argc, const char* argv[], const char* envp[], const char* apple[], const struct ProgramVars* vars)
41{
42	mach_init();
43	pthread_init();
44	__libc_init(vars);
45	__keymgr_initializer();
46	_dyld_initializer();
47}
48
49/*
50 *  Old crt1.o glue used to call through mach_init_routine which was used to initialize libSystem.
51 *  LibSystem now auto-initializes but mach_init_routine is left for binary compatibility.
52 */
53static void mach_init_old() {}
54void (*mach_init_routine)(void) = &mach_init_old;
55
56#endif /* __DYNAMIC__ */
57