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  1. /*
  2.  * Copyright (c) 2007 Pavel Jancik
  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 libcarm32 arm32
  30.   * @brief arm32 architecture dependent parts of libc
  31.   * @ingroup lc
  32.  * @{
  33.  */
  34. /** @file
  35.  *  @brief Uspace threads and TLS.
  36.  */
  37.  
  38. #include <thread.h>
  39. #include <malloc.h>
  40.  
  41. /** Allocates TLS & TCB.
  42.  *
  43.  * @param data Start of data section (output parameter).
  44.  * @param size Size of (tbss + tdata) sections.
  45.  * @return     Pointer to the allocated #tcb_t structure.
  46.  */
  47. tcb_t * __alloc_tls(void **data, size_t size)
  48. {
  49.     tcb_t *result;
  50.  
  51.     result = malloc(sizeof(tcb_t) + size);
  52.     *data = ((void *)result) + sizeof(tcb_t);
  53.     return result;
  54. }
  55.  
  56. /** Deallocates TLS & TCB.
  57.  *
  58.  * @param tcb TCB structure to be deallocated (along with corresponding TLS).
  59.  * @param size Not used.
  60.  */
  61. void __free_tls_arch(tcb_t *tcb, size_t size)
  62. {
  63.     free(tcb);
  64. }
  65.  
  66. /** @}
  67.  */
  68.