/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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.
+ *
+ * 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
* 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;
+/**********************************************************************
+ * Routine: grade_binary()
+ *
+ * Function: Say OK to CPU types that we can actually execute on the given
+ * system. 64-bit binaries have the highest preference, followed
+ * by 32-bit binaries. 0 means unsupported.
+ **********************************************************************/
+int
+grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype)
{
- 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);
+ cpu_subtype_t hostsubtype = cpu_subtype();
+
+ switch(exectype) {
+ case CPU_TYPE_X86_64: /* native 64-bit */
+ switch(hostsubtype) {
+ case CPU_SUBTYPE_X86_64_H: /* x86_64h can execute anything */
+ switch (execsubtype) {
+ case CPU_SUBTYPE_X86_64_H:
+ return 3;
+ case CPU_SUBTYPE_X86_64_ALL:
+ return 2;
+ }
+ break;
+ case CPU_SUBTYPE_X86_ARCH1: /* generic systems can only execute ALL subtype */
+ switch (execsubtype) {
+ case CPU_SUBTYPE_X86_64_ALL:
+ return 2;
+ }
+ break;
}
break;
+ case CPU_TYPE_X86: /* native */
+ return 1;
}
- return (FALSE);
+ return 0;
}
-/**********************************************************************
- * Routine: grade_cpu_subtype()
- *
- * 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.
- **********************************************************************/
-grade_cpu_subtype (cpu_subtype)
- cpu_subtype_t cpu_subtype;
+boolean_t
+pie_required(cpu_type_t exectype __unused, cpu_subtype_t execsubtype __unused)
{
- 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;
- }
- return 0;
- }
+ return FALSE;
}
projects / apple / xnu.git / blobdiff