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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. #ifndef LIBC_mips32_FIBRIL_H_
  37. #define LIBC_mips32_FIBRIL_H_
  38.  
  39. #include <sys/types.h>
  40.  
  41. /* We define our own context_set, because we need to set
  42.  * the TLS pointer to the tcb+0x7000
  43.  *
  44.  * See tls_set in thread.h
  45.  */
  46. #define context_set(c, _pc, stack, size, ptls)          \
  47.     (c)->pc = (sysarg_t) (_pc);             \
  48.     (c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA;     \
  49.         (c)->tls = ((sysarg_t)(ptls)) + 0x7000 + sizeof(tcb_t);
  50.  
  51.  
  52. /* +16 is just for sure that the called function
  53.  * have space to store it's arguments
  54.  */
  55. #define SP_DELTA    (8+16)
  56.  
  57. typedef struct  {
  58.     uint32_t sp;
  59.     uint32_t pc;
  60.    
  61.     uint32_t s0;
  62.     uint32_t s1;
  63.     uint32_t s2;
  64.     uint32_t s3;
  65.     uint32_t s4;
  66.     uint32_t s5;
  67.     uint32_t s6;
  68.     uint32_t s7;
  69.     uint32_t s8;
  70.     uint32_t gp;
  71.     uint32_t tls; /* Thread local storage(=k1) */
  72.  
  73.     uint32_t f20;
  74.     uint32_t f21;
  75.     uint32_t f22;
  76.     uint32_t f23;
  77.     uint32_t f24;
  78.     uint32_t f25;
  79.     uint32_t f26;
  80.     uint32_t f27;
  81.     uint32_t f28;
  82.     uint32_t f29;
  83.     uint32_t f30;
  84.    
  85. } context_t;
  86.  
  87. #endif
  88.  
  89. /** @}
  90.  */
  91.