/*
* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
*
* @APPLE_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.
*
* 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/* Get the cpu_capabilities bit vector out of the comm page */
#define __APPLE_API_PRIVATE
#include <machine/cpu_capabilities.h>
#undef __APPLE_API_PRIVATE
#if defined(__x86_64__)
.text
.align 2, 0x90
.globl __get_cpu_capabilities
__get_cpu_capabilities:
movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax
movq (%rax), %rax
ret
#elif defined(__i386__)
.text
.align 2, 0x90
.globl __get_cpu_capabilities
__get_cpu_capabilities:
movl _COMM_PAGE_CPU_CAPABILITIES64, %eax
movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx
ret
#elif defined(__arm__)
.text
.align 2
.globl __get_cpu_capabilities
__get_cpu_capabilities:
mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff)
orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00)
orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000)
orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000)
ldr r0, [r0]
bx lr
#elif defined(__arm64__)
.text
.align 2
.globl __get_cpu_capabilities
__get_cpu_capabilities:
ldr x0, Lcommpage_cc_addr
ldr x0, [x0]
ret
Lcommpage_cc_addr:
.quad _COMM_PAGE_CPU_CAPABILITIES64
#else
#error Unsupported architecture
#endif