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  1. /*
  2.  * Copyright (c) 2006 Ondrej Palkovsky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup libcmips32 
  30.  * @{
  31.  */
  32. /** @file
  33.  * @ingroup libcmips32eb   
  34.  */
  35.  
  36. #include <tls.h>
  37. #include <sys/types.h>
  38.  
  39. tcb_t * __alloc_tls(void **data, size_t size)
  40. {
  41.     return tls_alloc_variant_1(data, size);
  42. }
  43.  
  44. void __free_tls_arch(tcb_t *tcb, size_t size)
  45. {
  46.     tls_free_variant_1(tcb, size);
  47. }
  48.  
  49. typedef struct {
  50.     unsigned long ti_module;
  51.     unsigned long ti_offset;
  52. } tls_index;
  53.  
  54. void *__tls_get_addr(tls_index *ti);
  55.  
  56. /* mips32 uses TLS variant 1 */
  57. void *__tls_get_addr(tls_index *ti)
  58. {
  59.     uint8_t *tls;
  60.     uint32_t v;
  61.  
  62.     tls = (uint8_t *)__tcb_get() + sizeof(tcb_t);
  63.  
  64.     /* Hopefully this is right. No docs found. */
  65.     v = (uint32_t) (tls + ti->ti_offset + 0x8000);
  66.     return (void *) v;
  67. }
  68.  
  69. /** @}
  70.  */
  71.