| | 1 | /* |
| | 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_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. Please obtain a copy of the License at |
| | 10 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| | 11 | * file. |
| | 12 | * |
| | 13 | * The Original Code and all software distributed under the License are |
| | 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 18 | * Please see the License for the specific language governing rights and |
| | 19 | * limitations under the License. |
| | 20 | * |
| | 21 | * @APPLE_LICENSE_HEADER_END@ |
| | 22 | */ |
| | 23 | |
| | 24 | /* Get the cpu_capabilities bit vector out of the comm page */ |
| | 25 | |
| | 26 | #define __APPLE_API_PRIVATE |
| | 27 | #include <machine/cpu_capabilities.h> |
| | 28 | #undef __APPLE_API_PRIVATE |
| | 29 | |
| | 30 | #if defined(__x86_64__) |
| | 31 | |
| | 32 | .text |
| | 33 | .align 2, 0x90 |
| | 34 | .globl __get_cpu_capabilities |
| | 35 | __get_cpu_capabilities: |
| | 36 | movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax |
| | 37 | movq (%rax), %rax |
| | 38 | ret |
| | 39 | |
| | 40 | #elif defined(__i386__) |
| | 41 | |
| | 42 | .text |
| | 43 | .align 2, 0x90 |
| | 44 | .globl __get_cpu_capabilities |
| | 45 | __get_cpu_capabilities: |
| | 46 | movl _COMM_PAGE_CPU_CAPABILITIES64, %eax |
| | 47 | movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx |
| | 48 | ret |
| | 49 | |
| | 50 | #else |
| | 51 | #error Unsupported architecture |
| | 52 | #endif |
projects / apple / xnu.git / blame_incremental