1/*
2 * Copyright (c) 2000-2013 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 *	Copyright (C) 1990,  NeXT, Inc.
30 *
31 *	File:	next/kern_machdep.c
32 *	Author:	John Seamons
33 *
34 *	Machine-specific kernel routines.
35 */
36
37#include	<sys/types.h>
38#include	<mach/machine.h>
39#include	<kern/cpu_number.h>
40#include	<machine/exec.h>
41#include	<machine/machine_routines.h>
42
43/**********************************************************************
44 * Routine:	grade_binary()
45 *
46 * Function:	Say OK to CPU types that we can actually execute on the given
47 *		system. 64-bit binaries have the highest preference, followed
48 *		by 32-bit binaries. 0 means unsupported.
49 **********************************************************************/
50int
51grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype)
52{
53	cpu_subtype_t hostsubtype = cpu_subtype();
54
55	switch(exectype) {
56	case CPU_TYPE_X86_64:		/* native 64-bit */
57		switch(hostsubtype) {
58		case CPU_SUBTYPE_X86_64_H:	/* x86_64h can execute anything */
59			switch (execsubtype) {
60			case CPU_SUBTYPE_X86_64_H:
61				return 3;
62			case CPU_SUBTYPE_X86_64_ALL:
63				return 2;
64			}
65			break;
66		case CPU_SUBTYPE_X86_ARCH1:	/* generic systems can only execute ALL subtype */
67			switch (execsubtype) {
68			case CPU_SUBTYPE_X86_64_ALL:
69				return 2;
70			}
71			break;
72		}
73		break;
74	case CPU_TYPE_X86:		/* native */
75		return 1;
76	}
77
78	return 0;
79}
80
81extern void md_prepare_for_shutdown(int, int, char *);
82
83void
84md_prepare_for_shutdown(
85	__unused int paniced,
86	__unused int howto,
87	__unused char * command)
88{
89}
90