1*0f4c859eSApple OSS Distributions/* 2*0f4c859eSApple OSS Distributions * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 3*0f4c859eSApple OSS Distributions * 4*0f4c859eSApple OSS Distributions * @APPLE_LICENSE_HEADER_START@ 5*0f4c859eSApple OSS Distributions * 6*0f4c859eSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*0f4c859eSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*0f4c859eSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*0f4c859eSApple OSS Distributions * compliance with the License. Please obtain a copy of the License at 10*0f4c859eSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this 11*0f4c859eSApple OSS Distributions * file. 12*0f4c859eSApple OSS Distributions * 13*0f4c859eSApple OSS Distributions * The Original Code and all software distributed under the License are 14*0f4c859eSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15*0f4c859eSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16*0f4c859eSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17*0f4c859eSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18*0f4c859eSApple OSS Distributions * Please see the License for the specific language governing rights and 19*0f4c859eSApple OSS Distributions * limitations under the License. 20*0f4c859eSApple OSS Distributions * 21*0f4c859eSApple OSS Distributions * @APPLE_LICENSE_HEADER_END@ 22*0f4c859eSApple OSS Distributions */ 23*0f4c859eSApple OSS Distributions 24*0f4c859eSApple OSS Distributions/* Get the cpu_capabilities bit vector out of the comm page */ 25*0f4c859eSApple OSS Distributions 26*0f4c859eSApple OSS Distributions#define __APPLE_API_PRIVATE 27*0f4c859eSApple OSS Distributions#include <machine/cpu_capabilities.h> 28*0f4c859eSApple OSS Distributions#undef __APPLE_API_PRIVATE 29*0f4c859eSApple OSS Distributions 30*0f4c859eSApple OSS Distributions#if defined(__x86_64__) 31*0f4c859eSApple OSS Distributions 32*0f4c859eSApple OSS Distributions .text 33*0f4c859eSApple OSS Distributions .align 2, 0x90 34*0f4c859eSApple OSS Distributions .globl __get_cpu_capabilities 35*0f4c859eSApple OSS Distributions__get_cpu_capabilities: 36*0f4c859eSApple OSS Distributions movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax 37*0f4c859eSApple OSS Distributions movq (%rax), %rax 38*0f4c859eSApple OSS Distributions ret 39*0f4c859eSApple OSS Distributions 40*0f4c859eSApple OSS Distributions#elif defined(__i386__) 41*0f4c859eSApple OSS Distributions 42*0f4c859eSApple OSS Distributions .text 43*0f4c859eSApple OSS Distributions .align 2, 0x90 44*0f4c859eSApple OSS Distributions .globl __get_cpu_capabilities 45*0f4c859eSApple OSS Distributions__get_cpu_capabilities: 46*0f4c859eSApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64, %eax 47*0f4c859eSApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx 48*0f4c859eSApple OSS Distributions ret 49*0f4c859eSApple OSS Distributions 50*0f4c859eSApple OSS Distributions#elif defined(__arm__) 51*0f4c859eSApple OSS Distributions 52*0f4c859eSApple OSS Distributions .text 53*0f4c859eSApple OSS Distributions .align 2 54*0f4c859eSApple OSS Distributions .globl __get_cpu_capabilities 55*0f4c859eSApple OSS Distributions__get_cpu_capabilities: 56*0f4c859eSApple OSS Distributions mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff) 57*0f4c859eSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00) 58*0f4c859eSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000) 59*0f4c859eSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000) 60*0f4c859eSApple OSS Distributions ldr r0, [r0] 61*0f4c859eSApple OSS Distributions bx lr 62*0f4c859eSApple OSS Distributions 63*0f4c859eSApple OSS Distributions#elif defined(__arm64__) 64*0f4c859eSApple OSS Distributions 65*0f4c859eSApple OSS Distributions .text 66*0f4c859eSApple OSS Distributions .align 2 67*0f4c859eSApple OSS Distributions .globl __get_cpu_capabilities 68*0f4c859eSApple OSS Distributions__get_cpu_capabilities: 69*0f4c859eSApple OSS Distributions ldr x0, Lcommpage_cc_addr 70*0f4c859eSApple OSS Distributions ldr x0, [x0] 71*0f4c859eSApple OSS Distributions ret 72*0f4c859eSApple OSS DistributionsLcommpage_cc_addr: 73*0f4c859eSApple OSS Distributions.quad _COMM_PAGE_CPU_CAPABILITIES64 74*0f4c859eSApple OSS Distributions 75*0f4c859eSApple OSS Distributions#else 76*0f4c859eSApple OSS Distributions#error Unsupported architecture 77*0f4c859eSApple OSS Distributions#endif 78