arm/pthreads/pthread_self.s

   1 /*
   2  * Copyright (c) 2002 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 #include <arm/arch.h>
  24
  25 #define __APPLE_API_PRIVATE
  26 #include <machine/cpu_capabilities.h>
  27 #undef  __APPLE_API_PRIVATE
  28
  29         .text
  30         .align 2
  31         .globl _pthread_self
  32 _pthread_self:
  33 #ifdef _ARM_ARCH_6
  34         mrc     p15, 0, r0, c13, c0, 3
  35         bic     r0, r0, #3
  36 #else
  37         mov     r0, r9
  38 #endif
  39         ldr     r0, [r0, #0]
  40         bx      lr