bsd/dev/i386/kern_machdep.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  *      Copyright (C) 1990,  NeXT, Inc.
  24  *
  25  *      File:   next/kern_machdep.c
  26  *      Author: John Seamons
  27  *
  28  *      Machine-specific kernel routines.
  29  */
  30
  31 #include        <sys/types.h>
  32 #include        <mach/machine.h>
  33 #include        <kern/cpu_number.h>
  34 #include        <machine/exec.h>
  35 #include        <machine/machine_routines.h>
  36
  37 /**********************************************************************
  38  * Routine:     grade_binary()
  39  *
  40  * Function:    Keep the API the same between PPC and X86; always say
  41  *              any CPU subtype is OK with us, but only OK CPU types
  42  *              for which we are actually capable of executing the
  43  *              binary, either directly or via an imputed interpreter.
  44  **********************************************************************/
  45 int
  46 grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype)
  47 {
  48         switch(exectype) {
  49         case CPU_TYPE_X86:              /* native */
  50         case CPU_TYPE_POWERPC:          /* via translator */
  51                 return 1;
  52         case CPU_TYPE_X86_64:           /* native 64-bit */
  53                 return (ml_is64bit() && execsubtype == CPU_SUBTYPE_X86_64_ALL) ? 2 : 0;
  54         default:                        /* all other binary types */
  55                 return 0;
  56         }
  57 }
  58
  59 extern void md_prepare_for_shutdown(int, int, char *);
  60
  61 void
  62 md_prepare_for_shutdown(
  63         __unused int paniced,
  64         __unused int howto,
  65         __unused char * command)
  66 {
  67 }