/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
*
- * @APPLE_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 Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @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. 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
* 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.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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_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>
-
-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;
+#include <sys/types.h>
+#include <mach/machine.h>
+#include <kern/cpu_number.h>
+#include <machine/exec.h>
+#include <machine/machine_routines.h>
- 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);
-}
+#if __x86_64__
+extern int bootarg_no32exec; /* bsd_init.c */
+#endif
/**********************************************************************
- * 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;
+* 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, cpu_subtype_t execfeatures __unused, bool allow_simulator_binary __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;
+ 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;
}
-
- 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:
+ break;
+ case CPU_TYPE_X86: /* native */
+#if __x86_64__
+ if (bootarg_no32exec && !allow_simulator_binary) {
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;
+#endif
+ return 1;
}
+
+ return 0;
}
projects / apple / xnu.git / blobdiff