1/* 2 * Copyright (c) 1999-2012 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 * Mach Operating System 30 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University 31 * All Rights Reserved. 32 * 33 * Permission to use, copy, modify and distribute this software and its 34 * documentation is hereby granted, provided that both the copyright 35 * notice and this permission notice appear in all copies of the 36 * software, derivative works or modified versions, and any portions 37 * thereof, and that both notices appear in supporting documentation. 38 * 39 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 40 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 41 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 42 * 43 * Carnegie Mellon requests users of this software to return to 44 * 45 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 46 * School of Computer Science 47 * Carnegie Mellon University 48 * Pittsburgh PA 15213-3890 49 * 50 * any improvements or extensions that they make and grant Carnegie Mellon 51 * the rights to redistribute these changes. 52 */ 53 54#include <mach/mach.h> 55#include <mach/boolean.h> 56#include <mach/machine/ndr_def.h> 57#include <mach/mach_traps.h> 58#include <mach/mach_host.h> 59#include <mach/mach_init.h> 60#include <mach/vm_param.h> 61#include <stdbool.h> 62#include "externs.h" 63 64mach_port_t bootstrap_port = MACH_PORT_NULL; 65mach_port_t mach_task_self_ = MACH_PORT_NULL; 66#ifdef __i386__ 67mach_port_t mach_host_self_ = MACH_PORT_NULL; 68#endif 69extern mach_port_t _task_reply_port; 70 71vm_size_t vm_kernel_page_size = KERNEL_PAGE_SIZE; 72vm_size_t vm_kernel_page_mask = KERNEL_PAGE_MASK; 73int vm_kernel_page_shift = KERNEL_PAGE_SHIFT; 74 75vm_size_t vm_page_size = PAGE_SIZE; 76vm_size_t vm_page_mask = PAGE_MASK; 77int vm_page_shift = PAGE_SHIFT; 78 79int mach_init(void); 80int _mach_fork_child(void); 81 82static void mach_init_doit(void); 83 84extern void _pthread_set_self(void *); 85extern void _init_cpu_capabilities(void); 86 87kern_return_t 88host_page_size(__unused host_t host, vm_size_t *out_page_size) 89{ 90 *out_page_size = PAGE_SIZE; 91 return KERN_SUCCESS; 92} 93 94/* 95 * mach_init() must be called explicitly in static executables (including dyld). 96 * called by libSystem_initializer() in dynamic executables 97 */ 98int 99mach_init(void) 100{ 101 static bool mach_init_inited = false; 102 if (!mach_init_inited) { 103 mach_init_doit(); 104 mach_init_inited = true; 105 } 106 return 0; 107} 108 109// called by libSystem_atfork_child() 110int 111_mach_fork_child(void) 112{ 113 mach_init_doit(); 114 return 0; 115} 116 117void 118mach_init_doit(void) 119{ 120 // Initialize cached mach ports defined in mach_init.h 121 mach_task_self_ = task_self_trap(); 122 _task_reply_port = mach_reply_port(); 123 124 _init_cpu_capabilities(); 125 _pthread_set_self(0); 126} 127