]> git.saurik.com Git - apple/xnu.git/blobdiff - bsd/dev/i386/kern_machdep.c
xnu-1486.2.11.tar.gz
[apple/xnu.git] / bsd / dev / i386 / kern_machdep.c
index 0c3684b58f8f883165baa85bd55defa3fd95e4d2..c77af1d8be5f5878f556b6ea92a67c649d68d7a2 100644 (file)
@@ -1,23 +1,29 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  *     Copyright (C) 1990,  NeXT, Inc.
  *     Author: John Seamons
  *
  *     Machine-specific kernel routines.
- *
- *  8-Dec-91  Peter King (king) at NeXT
- *     Added grade_cpu_subtype().
- *     FIXME: Do we want to merge this with check_cpu_subtype()?
- *
- *  5-Mar-90  John Seamons (jks) at NeXT
- *     Created.
  */
 
 #include       <sys/types.h>
 #include       <mach/machine.h>
 #include       <kern/cpu_number.h>
+#include       <machine/exec.h>
+#include       <machine/machine_routines.h>
 
-check_cpu_subtype (cpu_subtype)
-       cpu_subtype_t cpu_subtype;
-{
-       struct machine_slot *ms = &machine_slot[cpu_number()];
-       
-       switch (ms->cpu_subtype) {
-           case CPU_SUBTYPE_386:
-               if (cpu_subtype == CPU_SUBTYPE_386)
-                   return (TRUE);
-               break;
-
-           case CPU_SUBTYPE_486:
-           case CPU_SUBTYPE_486SX:
-               if (    cpu_subtype == CPU_SUBTYPE_486          ||
-                       cpu_subtype == CPU_SUBTYPE_486SX        ||
-                       cpu_subtype == CPU_SUBTYPE_386          )
-                   return (TRUE);
-               break;
-
-           case CPU_SUBTYPE_586:
-               if (    cpu_subtype == CPU_SUBTYPE_586          ||
-                       cpu_subtype == CPU_SUBTYPE_486          ||
-                       cpu_subtype == CPU_SUBTYPE_486SX        ||
-                       cpu_subtype == CPU_SUBTYPE_386          )
-                   return (TRUE);
-               break;
-
-           default:
-               if (    CPU_SUBTYPE_INTEL_MODEL(cpu_subtype) ==
-                       CPU_SUBTYPE_INTEL_MODEL_ALL) {
-                   if (        CPU_SUBTYPE_INTEL_FAMILY(ms->cpu_subtype) >=
-                               CPU_SUBTYPE_INTEL_FAMILY(cpu_subtype))
-                       return (TRUE);
-               }
-               else {
-                   if (        ms->cpu_subtype == cpu_subtype)
-                       return (TRUE);
-               }
-               break;
-       }
-
-       return (FALSE);
-}
+extern int bootarg_no64exec;   /* bsd_init.c */
 
 /**********************************************************************
- * Routine:    grade_cpu_subtype()
+ * Routine:    grade_binary()
  *
- * Function:   Return a relative preference for cpu_subtypes in fat
- *             executable files.  The higher the grade, the higher the
- *             preference.  A grade of 0 means not acceptable.
+ * Function:   Keep the API the same between PPC and X86; always say
+ *             any CPU subtype is OK with us, but only OK CPU types
+ *             for which we are actually capable of executing the
+ *             binary, either directly or via an imputed interpreter.
  **********************************************************************/
-grade_cpu_subtype (cpu_subtype)
-       cpu_subtype_t           cpu_subtype;
+int
+grade_binary(cpu_type_t exectype, __unused cpu_subtype_t execsubtype)
 {
-       struct machine_slot     *ms = &machine_slot[cpu_number()];
-
-       switch (ms->cpu_subtype) {
-           case CPU_SUBTYPE_386:
-               switch (cpu_subtype) {
-                   case CPU_SUBTYPE_386:
-                       return 1;
-                   default:
-                       return 0;
-               }
-
-           case CPU_SUBTYPE_486:
-               switch (cpu_subtype) {
-                   case CPU_SUBTYPE_386:
-                       return 1;
-
-                   case CPU_SUBTYPE_486SX:
-                       return 2;
-
-                   case CPU_SUBTYPE_486:
-                       return 3;
-
-                   default:
-                       return 0;
-               }
-
-           case CPU_SUBTYPE_486SX:
-               switch (cpu_subtype) {
-                   case CPU_SUBTYPE_386:
-                       return 1;
-
-                   case CPU_SUBTYPE_486:
-                       return 2;
-
-                   case CPU_SUBTYPE_486SX:
-                       return 3;
-
-                   default:
-                       return 0;
-               }
-
-           case CPU_SUBTYPE_586:
-               switch (cpu_subtype) {
-                   case CPU_SUBTYPE_386:
-                       return 1;
-
-                   case CPU_SUBTYPE_486SX:
-                       return 2;
-
-                   case CPU_SUBTYPE_486:
-                       return 3;
-
-                   case CPU_SUBTYPE_586:
-                       return 4;
-
-                   default:
-                       return 0;
-               }
-
-           default:
-               if (    CPU_SUBTYPE_INTEL_MODEL(cpu_subtype) ==
-                       CPU_SUBTYPE_INTEL_MODEL_ALL) {
-                   if (        CPU_SUBTYPE_INTEL_FAMILY(ms->cpu_subtype) >=
-                               CPU_SUBTYPE_INTEL_FAMILY(cpu_subtype))
-                       return CPU_SUBTYPE_INTEL_FAMILY_MAX - 
-                           CPU_SUBTYPE_INTEL_FAMILY(ms->cpu_subtype) -
-                           CPU_SUBTYPE_INTEL_FAMILY(cpu_subtype);
-               }
-               else {
-                   if (        ms->cpu_subtype == cpu_subtype)
-                       return CPU_SUBTYPE_INTEL_FAMILY_MAX + 1;
-               }
+       switch(exectype) {
+       case CPU_TYPE_X86:              /* native */
+       case CPU_TYPE_POWERPC:          /* via translator */
+               return 1;
+       case CPU_TYPE_X86_64:           /* native 64-bit */
+               return ((ml_is64bit() && !bootarg_no64exec) ? 2 : 0);
+       default:                        /* all other binary types */
                return 0;
        }
 }
+
+extern void md_prepare_for_shutdown(int, int, char *);
+
+void
+md_prepare_for_shutdown(
+       __unused int paniced,
+       __unused int howto,
+       __unused char * command)
+{
+}