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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 libcamd64 amd64
  30.  * @ingroup lc
  31.  * @{
  32.  */
  33. /** @file
  34.   * @ingroup libcia32
  35.  */
  36.  
  37. #include <tls.h>
  38. #include <sys/types.h>
  39. #include <align.h>
  40.  
  41. tcb_t * __alloc_tls(void **data, size_t size)
  42. {
  43.     return tls_alloc_variant_2(data, size);
  44. }
  45.  
  46. void __free_tls_arch(tcb_t *tcb, size_t size)
  47. {
  48.     tls_free_variant_2(tcb, size);
  49. }
  50.  
  51. //#ifdef __SHARED__
  52.  
  53. typedef struct {
  54.     unsigned long int ti_module;
  55.     unsigned long int ti_offset;
  56. } tls_index;
  57.  
  58. void __attribute__ ((__regparm__ (1)))
  59.     *___tls_get_addr(tls_index *ti);
  60.  
  61. void __attribute__ ((__regparm__ (1)))
  62.     *___tls_get_addr(tls_index *ti)
  63. {
  64.     size_t tls_size;
  65.     uint8_t *tls;
  66.  
  67.     /* Calculate size of TLS block */
  68.     tls_size = ALIGN_UP(&_tbss_end - &_tdata_start, &_tls_alignment);
  69.  
  70.     /* The TLS block is just before TCB */
  71.     tls = (uint8_t *)__tcb_get() - tls_size;
  72.  
  73.     return tls + ti->ti_offset;
  74. }
  75.  
  76. //#endif
  77.  
  78. /** @}
  79.  */
  80.