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  1. /*
  2.  * Copyright (c) 2006 Ondrej Palkovsky
  3.  * Copyright (c) 2008 Jiri Svoboda
  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 libcppc32  
  31.  * @{
  32.  */
  33. /** @file
  34.  */
  35.  
  36. #include <tls.h>
  37. #include <align.h>
  38. #include <sys/types.h>
  39.  
  40. tcb_t * __alloc_tls(void **data, size_t size)
  41. {
  42.     return tls_alloc_variant_1(data, size);
  43. }
  44.  
  45. void __free_tls_arch(tcb_t *tcb, size_t size)
  46. {
  47.     tls_free_variant_1(tcb, size);
  48. }
  49.  
  50. static void kputint(unsigned i)
  51. {
  52.     asm volatile (
  53.         "mr %%r3, %0\n"
  54.         "li %%r9, 32\n"
  55.         "sc\n"
  56.         :
  57.         : "r" (i)
  58.         : "%r3","%r9"
  59.     ) ;
  60. }
  61.  
  62. typedef struct {
  63.     unsigned long int ti_module;
  64.     unsigned long int ti_offset;
  65. } tls_index;
  66.  
  67. void *__tls_get_addr(tls_index *ti);
  68.  
  69. /* ppc32 uses TLS variant 1 */
  70. void *__tls_get_addr(tls_index *ti)
  71. {
  72.     uint8_t *tls;
  73.  
  74.     /* The TLS section is just after TCB */
  75.     tls = (uint8_t *)__tcb_get() + sizeof(tcb_t);
  76.  
  77.     /* Hopefully this is right. No docs found. */
  78.     return tls + ti->ti_offset + 32768;
  79. }
  80.  
  81. /** @}
  82.  */
  83.