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  1. /*
  2.  * Copyright (c) 2007 Michal Kebrt
  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 arm32  
  30.  * @{
  31.  */
  32. /** @file
  33.  *  @brief Thread context.
  34.  */
  35.  
  36. #ifndef KERN_arm32_CONTEXT_H_
  37. #define KERN_arm32_CONTEXT_H_
  38.  
  39. #include <align.h>
  40. #include <arch/stack.h>
  41.  
  42. /* Put one item onto the stack to support get_stack_base() and align it up. */
  43. #define SP_DELTA  (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
  44.  
  45. #ifndef __ASM__
  46.  
  47. #include <arch/types.h>
  48.  
  49. /** Thread context containing registers that must be preserved across function
  50.  * calls.
  51.  */
  52. typedef struct {
  53.     uint32_t cpu_mode;
  54.     uintptr_t sp;
  55.     uintptr_t pc;
  56.    
  57.     uint32_t r4;
  58.     uint32_t r5;
  59.     uint32_t r6;
  60.     uint32_t r7;
  61.     uint32_t r8;
  62.     uint32_t r9;
  63.     uint32_t r10;
  64.     uint32_t r11;
  65.    
  66.     ipl_t ipl;
  67. } context_t;
  68.  
  69.  
  70. #endif /* __ASM__ */
  71.  
  72. #endif
  73.  
  74. /** @}
  75.  */
  76.