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rt-thread
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libcpu
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ia32
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include
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grub.h

grub.h 2.2 KB
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  1. /*
    2. 

  2.  * File      : grub.h
    3. 

  3.  * This file is part of RT-Thread RTOS
    4. 

  4.  * COPYRIGHT (C) 2006, RT-Thread Develop Team
    5. 

  5.  *
    6. 

  6.  * The license and distribution terms for this file may be
    7. 

  7.  * found in the file LICENSE in this distribution or at
    8. 

  8.  * http://openlab.rt-thread.com/license/LICENSE
    9. 

  9.  *
    10. 

  10.  * Change Logs:
    11. 

  11.  * Date           Author       Notes
    12. 

  12.  * 2006-10-09     Bernard      the grub related definitions 
    13. 

  13.  *                             (multiboot)
    14. 

  14.  */
    15. 

  15. 

  16. #ifndef __GRUB_H__
    17. 

  17. #define __GRUB_H__
    18. 

  18. 

  19. /* the magic number for the multiboot header.  */
    20. 

  20. #define MULTIBOOT_HEADER_MAGIC		0x1BADB002
    21. 

  21. 

  22. /* the flags for the multiboot header.  */
    23. 

  23. #define MULTIBOOT_HEADER_FLAGS		0x00000003
    24. 

  24. 

  25. /* the magic number passed by a multiboot-compliant boot loader.  */
    26. 

  26. #define MULTIBOOT_BOOTLOADER_MAGIC	0x2BADB002
    27. 

  27. 

  28. #ifndef __ASM__
    29. 

  29. /* the multiboot header.  */
    30. 

  30. typedef struct multiboot_header
    31. 

  31. {
    32. 

  32. 	unsigned long magic;
    33. 

  33. 	unsigned long flags;
    34. 

  34. 	unsigned long checksum;
    35. 

  35. 	unsigned long header_addr;
    36. 

  36. 	unsigned long load_addr;
    37. 

  37. 	unsigned long load_end_addr;
    38. 

  38. 	unsigned long bss_end_addr;
    39. 

  39. 	unsigned long entry_addr;
    40. 

  40. } multiboot_header_t;
    41. 

  41. 

  42. /* the section header table for elf.  */
    43. 

  43. typedef struct elf_section_header_table
    44. 

  44. {
    45. 

  45. 	unsigned long num;
    46. 

  46. 	unsigned long size;
    47. 

  47. 	unsigned long addr;
    48. 

  48. 	unsigned long shndx;
    49. 

  49. } elf_section_header_table_t;
    50. 

  50. 

  51. /* the multiboot information.  */
    52. 

  52. typedef struct multiboot_info
    53. 

  53. {
    54. 

  54. 	unsigned long flags;
    55. 

  55. 	unsigned long mem_lower;
    56. 

  56. 	unsigned long mem_upper;
    57. 

  57. 	unsigned long boot_device;
    58. 

  58. 	unsigned long cmdline;
    59. 

  59. 	unsigned long mods_count;
    60. 

  60. 	unsigned long mods_addr;
    61. 

  61. 	union
    62. 

  62. 	{
    63. 

  63. 		aout_symbol_table_t aout_sym;
    64. 

  64. 		elf_section_header_table_t elf_sec;
    65. 

  65. 	} u;
    66. 

  66. 	unsigned long mmap_length;
    67. 

  67. 	unsigned long mmap_addr;
    68. 

  68. } multiboot_info_t;
    69. 

  69. 

  70. /* the module structure.  */
    71. 

  71. typedef struct module
    72. 

  72. {
    73. 

  73. 	unsigned long mod_start;
    74. 

  74. 	unsigned long mod_end;
    75. 

  75. 	unsigned long string;
    76. 

  76. 	unsigned long reserved;
    77. 

  77. } module_t;
    78. 

  78. 

  79. /* the memory map. be careful that the offset 0 is base_addr_low
    80. 

  80.    but no size.  */
    81. 

  81. typedef struct memory_map
    82. 

  82. {
    83. 

  83. 	unsigned long size;
    84. 

  84. 	unsigned long base_addr_low;
    85. 

  85. 	unsigned long base_addr_high;
    86. 

  86. 	unsigned long length_low;
    87. 

  87. 	unsigned long length_high;
    88. 

  88. 	unsigned long type;
    89. 

  89. } memory_map_t;
    90. 

  90. 

  91. #endif
    92. 

  92. 

  93. #endif
    94.