libsyscall/wrappers/init_cpu_capabilities.c

   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 #define __APPLE_API_PRIVATE
  25 #include <machine/cpu_capabilities.h>
  26 #undef  __APPLE_API_PRIVATE
  27
  28 #if defined(__i386__) || defined(__x86_64__)
  29
  30 /* Initialize the "_cpu_capabilities" vector on x86 processors. */
  31
  32 int _cpu_has_altivec = 0;     // DEPRECATED
  33 int _cpu_capabilities = 0;
  34
  35 void
  36 _init_cpu_capabilities( void )
  37 {
  38         _cpu_capabilities = _get_cpu_capabilities();
  39 }
  40
  41 #elif defined(__arm__) || defined(__arm64__)
  42
  43 extern int _get_cpu_capabilities(void);
  44
  45 int _cpu_capabilities = 0;
  46 int _cpu_has_altivec = 0;               // DEPRECATED: use _cpu_capabilities instead
  47
  48 void
  49 _init_cpu_capabilities( void )
  50 {
  51 }
  52
  53 #endif