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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.  */
  34.  
  35. #ifndef KERN_arm32_CONTEXT_H_
  36. #define KERN_arm32_CONTEXT_H_
  37.  
  38.  
  39. /*
  40.  * Put one item onto the stack to support get_stack_base() and align it up.
  41.  */
  42. #define SP_DELTA    0 /*TODO*/
  43.  
  44.  
  45. #ifndef __ASM__
  46.  
  47. #include <arch/types.h>
  48.  
  49. /*
  50.  * Only save registers that must be preserved across
  51.  * function calls.
  52.  */
  53. typedef struct {
  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 r10;
  63.     uint32_t r11;
  64.  
  65.     ipl_t ipl;
  66. } context_t;
  67.  
  68. #endif /* __ASM__ */
  69.  
  70. #endif
  71.  
  72. /** @}
  73.  */
  74.