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  1. /*
  2.  * Copyright (c) 2006 Ondrej Palkovsky
  3.  * Copyright (c) 2006 Jakub Jermar
  4.  * All rights reserved.
  5.  *
  6.  * Redistribution and use in source and binary forms, with or without
  7.  * modification, are permitted provided that the following conditions
  8.  * are met:
  9.  *
  10.  * - Redistributions of source code must retain the above copyright
  11.  *   notice, this list of conditions and the following disclaimer.
  12.  * - Redistributions in binary form must reproduce the above copyright
  13.  *   notice, this list of conditions and the following disclaimer in the
  14.  *   documentation and/or other materials provided with the distribution.
  15.  * - The name of the author may not be used to endorse or promote products
  16.  *   derived from this software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28.  */
  29.  
  30. /** @addtogroup libcsparc64
  31.  * @{
  32.  */
  33. /**
  34.  * @file
  35.  * @brief   sparc64 TLS functions.
  36.  */
  37.  
  38. #ifndef LIBC_sparc64_TLS_H_
  39. #define LIBC_sparc64_TLS_H_
  40.  
  41. #define CONFIG_TLS_VARIANT_2
  42.  
  43. typedef struct {
  44.     void *self;
  45.     void *fibril_data;
  46. } tcb_t;
  47.  
  48. static inline void __tcb_set(tcb_t *tcb)
  49. {
  50.     asm volatile ("mov %0, %%g7\n" : : "r" (tcb) : "g7");
  51. }
  52.  
  53. static inline tcb_t * __tcb_get(void)
  54. {
  55.     void *retval;
  56.  
  57.     asm volatile ("mov %%g7, %0\n" : "=r" (retval));
  58.  
  59.     return retval;
  60. }
  61.  
  62. #endif
  63.  
  64. /** @}
  65.  */
  66.