begriffs open source - cmsis-freertos/blob - Demo/IA32_flat_GCC_Galileo_Gen_2/Support_Files/multiboot.h

   1 /*
   2  * Multiboot OS definitions and structures.
   3  */
   4
   5 #ifndef _MULTIBOOT_H_
   6 #define _MULTIBOOT_H_
   7
   8 #define MULTIBOOT_HEADER_MAGIC          0x1BADB002
   9 #define MULTIBOOT_HEADER_FLAGS          0x00010003
  10 #define MULTIBOOT_BOOTLOADER_MAGIC      0x2BADB002
  11
  12 typedef unsigned long t_32 ;
  13
  14 typedef struct multiboot_header
  15  {
  16         t_32 Magic;
  17         t_32 flags;
  18         t_32 checksum;
  19         t_32 header_addr;
  20         t_32 load_addr;
  21         t_32 load_end_addr;
  22         t_32 bss_end_addr;
  23         t_32 entry_addr;
  24         t_32 video_mode;
  25         t_32 width;
  26         t_32 height;
  27         t_32 depth;
  28 } multiboot_header_t;
  29
  30 /* Symbol table for a.out. */
  31 typedef struct aout_symbol_table
  32 {
  33         t_32 tabsize;
  34         t_32 strsize;
  35         t_32 addr;
  36         t_32 reserved;
  37 } aout_symbol_table_t;
  38
  39 /* Section header table for ELF. */
  40 typedef struct elf_section_header_table
  41 {
  42         t_32 num;
  43         t_32 size;
  44         t_32 addr;
  45         t_32 shndx;
  46 } elf_section_header_table_t;
  47
  48 /* Multiboot information. */
  49 typedef struct multiboot_info
  50 {
  51         t_32 flags;
  52         t_32 mem_lower;
  53         t_32 mem_upper;
  54         t_32 boot_device;
  55         t_32 cmdline;
  56         t_32 mods_count;
  57         t_32 mods_addr;
  58         union
  59         {
  60                 aout_symbol_table_t aout_sym;
  61             elf_section_header_table_t elf_sec;
  62         } u;
  63         t_32 mmap_length;
  64         t_32 mmap_addr;
  65 } multiboot_info_t;
  66
  67 /* Module structure. */
  68 typedef struct module
  69 {
  70         t_32 mod_start;
  71         t_32 mod_end;
  72         t_32 string;
  73         t_32 reserved;
  74 } module_t;
  75
  76 /* Memory map. Offset 0 is base_addr_low -no size. */
  77 typedef struct memory_map
  78 {
  79         t_32 size;
  80         t_32 base_addr_low;
  81         t_32 base_addr_high;
  82         t_32 length_low;
  83         t_32 length_high;
  84         t_32 type;
  85 } memory_map_t;
  86
  87 #define CHECK_FLAG(flags,bit)    ((flags) & (1 << (bit)))
  88
  89 #endif /* _MULTIBOOT_H_ */