1*2c2f96dcSApple OSS Distributions/* 2*2c2f96dcSApple OSS Distributions * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 3*2c2f96dcSApple OSS Distributions * 4*2c2f96dcSApple OSS Distributions * @APPLE_LICENSE_HEADER_START@ 5*2c2f96dcSApple OSS Distributions * 6*2c2f96dcSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*2c2f96dcSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*2c2f96dcSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*2c2f96dcSApple OSS Distributions * compliance with the License. Please obtain a copy of the License at 10*2c2f96dcSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this 11*2c2f96dcSApple OSS Distributions * file. 12*2c2f96dcSApple OSS Distributions * 13*2c2f96dcSApple OSS Distributions * The Original Code and all software distributed under the License are 14*2c2f96dcSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15*2c2f96dcSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16*2c2f96dcSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17*2c2f96dcSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18*2c2f96dcSApple OSS Distributions * Please see the License for the specific language governing rights and 19*2c2f96dcSApple OSS Distributions * limitations under the License. 20*2c2f96dcSApple OSS Distributions * 21*2c2f96dcSApple OSS Distributions * @APPLE_LICENSE_HEADER_END@ 22*2c2f96dcSApple OSS Distributions */ 23*2c2f96dcSApple OSS Distributions 24*2c2f96dcSApple OSS Distributions/* Get the cpu_capabilities bit vector out of the comm page */ 25*2c2f96dcSApple OSS Distributions 26*2c2f96dcSApple OSS Distributions#define __APPLE_API_PRIVATE 27*2c2f96dcSApple OSS Distributions#include <machine/cpu_capabilities.h> 28*2c2f96dcSApple OSS Distributions#undef __APPLE_API_PRIVATE 29*2c2f96dcSApple OSS Distributions 30*2c2f96dcSApple OSS Distributions#if defined(__x86_64__) 31*2c2f96dcSApple OSS Distributions 32*2c2f96dcSApple OSS Distributions .text 33*2c2f96dcSApple OSS Distributions .align 2, 0x90 34*2c2f96dcSApple OSS Distributions .globl __get_cpu_capabilities 35*2c2f96dcSApple OSS Distributions__get_cpu_capabilities: 36*2c2f96dcSApple OSS Distributions movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax 37*2c2f96dcSApple OSS Distributions movq (%rax), %rax 38*2c2f96dcSApple OSS Distributions ret 39*2c2f96dcSApple OSS Distributions 40*2c2f96dcSApple OSS Distributions#elif defined(__i386__) 41*2c2f96dcSApple OSS Distributions 42*2c2f96dcSApple OSS Distributions .text 43*2c2f96dcSApple OSS Distributions .align 2, 0x90 44*2c2f96dcSApple OSS Distributions .globl __get_cpu_capabilities 45*2c2f96dcSApple OSS Distributions__get_cpu_capabilities: 46*2c2f96dcSApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64, %eax 47*2c2f96dcSApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx 48*2c2f96dcSApple OSS Distributions ret 49*2c2f96dcSApple OSS Distributions 50*2c2f96dcSApple OSS Distributions#elif defined(__arm__) 51*2c2f96dcSApple OSS Distributions 52*2c2f96dcSApple OSS Distributions .text 53*2c2f96dcSApple OSS Distributions .align 2 54*2c2f96dcSApple OSS Distributions .globl __get_cpu_capabilities 55*2c2f96dcSApple OSS Distributions__get_cpu_capabilities: 56*2c2f96dcSApple OSS Distributions mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff) 57*2c2f96dcSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00) 58*2c2f96dcSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000) 59*2c2f96dcSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000) 60*2c2f96dcSApple OSS Distributions ldr r0, [r0] 61*2c2f96dcSApple OSS Distributions bx lr 62*2c2f96dcSApple OSS Distributions 63*2c2f96dcSApple OSS Distributions#elif defined(__arm64__) 64*2c2f96dcSApple OSS Distributions 65*2c2f96dcSApple OSS Distributions .text 66*2c2f96dcSApple OSS Distributions .align 2 67*2c2f96dcSApple OSS Distributions .globl __get_cpu_capabilities 68*2c2f96dcSApple OSS Distributions__get_cpu_capabilities: 69*2c2f96dcSApple OSS Distributions ldr x0, Lcommpage_cc_addr 70*2c2f96dcSApple OSS Distributions ldr x0, [x0] 71*2c2f96dcSApple OSS Distributions ret 72*2c2f96dcSApple OSS DistributionsLcommpage_cc_addr: 73*2c2f96dcSApple OSS Distributions.quad _COMM_PAGE_CPU_CAPABILITIES64 74*2c2f96dcSApple OSS Distributions 75*2c2f96dcSApple OSS Distributions#else 76*2c2f96dcSApple OSS Distributions#error Unsupported architecture 77*2c2f96dcSApple OSS Distributions#endif 78