bsd/dev/i386/kern_machdep.c

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, 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 extern int bootarg_no64exec;    /* bsd_init.c */
  44
  45 /**********************************************************************
  46  * Routine:     grade_binary()
  47  *
  48  * Function:    Keep the API the same between PPC and X86; always say
  49  *              any CPU subtype is OK with us, but only OK CPU types
  50  *              for which we are actually capable of executing the
  51  *              binary, either directly or via an imputed interpreter.
  52  **********************************************************************/
  53 int
  54 grade_binary(cpu_type_t exectype, __unused cpu_subtype_t execsubtype)
  55 {
  56         switch(exectype) {
  57         case CPU_TYPE_X86:              /* native */
  58         case CPU_TYPE_POWERPC:          /* via translator */
  59                 return 1;
  60         case CPU_TYPE_X86_64:           /* native 64-bit */
  61                 return ((ml_is64bit() && !bootarg_no64exec) ? 2 : 0);
  62         default:                        /* all other binary types */
  63                 return 0;
  64         }
  65 }
  66
  67 extern void md_prepare_for_shutdown(int, int, char *);
  68
  69 void
  70 md_prepare_for_shutdown(
  71         __unused int paniced,
  72         __unused int howto,
  73         __unused char * command)
  74 {
  75 }