91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
#pragma once
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#include "prekernel/multiboot.h"
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#define CHECK_FLAG(flags, bit) ((flags) & (1 <<(bit)))
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#include "terminal/kterm.h"
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void CheckMBT ( multiboot_info_t* mbt ){
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/* Set MBI to the addresss of the multiboot information structure*/
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multiboot_info_t * mbi = (multiboot_info_t *) mbt;
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#ifdef __VERBOSE__
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/* Print out the flags */
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printf("flags = 0x%x\n", (unsigned) mbi->flags);
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#endif
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/* Are mem_* valid? */
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if ( CHECK_FLAG(mbi->flags,0)){
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// Do nothing
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}
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/* is boot device valid ? */
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if (CHECK_FLAG (mbi->flags, 1))
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{
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#ifdef __VERBOSE__
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printf("boot_device = 0x0%x\n", (unsigned) mbi->boot_device);
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#endif
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}
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/* is the command line passed? */
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if (CHECK_FLAG ( mbi->flags,2))
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{
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#ifdef __VERBOSE__
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printf("cmdline = %s\n", (char *) mbi->cmdline);
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#endif
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}
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/* Are mods_* valid? */
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if(CHECK_FLAG ( mbi->flags, 3)){
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multiboot_module_t *mod;
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uint32_t i;
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#ifdef __VERBOSE__
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printf("mods count = %d, mods_addr = 0x%x\n", (int) mbi->mods_count, (int) mbi->mods_addr);
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for(i = 0, mod = (multiboot_module_t *) mbi->mods_addr; i < mbi->mods_count; i++ , mod++){
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printf(" mod start = 0x%x, mod_end = 0x%x, cmdline = %s\n", (unsigned) mod->mod_start, (unsigned) mod->mod_end, (char*) mod->cmdline);
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}
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#endif
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}
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/* Bits 4 and 5 are mutually exclusive! */
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if (CHECK_FLAG (mbi->flags, 4) && CHECK_FLAG(mbi->flags, 5))
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{
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#ifdef __VERBOSE__
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printf("Both bits 4 and 5 are set.\n");
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#endif
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return;
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}
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/* Is the symbol table of a.out valid? */
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if (CHECK_FLAG(mbi->flags, 4)){
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multiboot_aout_symbol_table_t *multiboot_aout_sym = &(mbi->u.aout_sym);
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#ifdef __VERBOSE__
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printf( "multiboot_aout_symbol_table: tabsize = 0x%0x, strsize = 0x%x, addr = 0x%x\n",
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(unsigned) multiboot_aout_sym->tabsize,
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(unsigned) multiboot_aout_sym->strsize,
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(unsigned) multiboot_aout_sym->addr);
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#endif
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}
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/* Is the section header table of ELF valid? */
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if (CHECK_FLAG(mbi->flags, 5)){
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multiboot_elf_section_header_table_t *multiboot_elf_sec = &(mbi->u.elf_sec);
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#ifdef __VERBOSE__
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printf("multiboot_elf_sec: num = %u, size = 0x%x, addr = 0x%x, shnd = 0x%x\n",
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(unsigned) multiboot_elf_sec->num, (unsigned) multiboot_elf_sec->size,
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(unsigned) multiboot_elf_sec->addr, (unsigned) multiboot_elf_sec->shndx);
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#endif
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}
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/* Draw diagonal blue line */
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if (CHECK_FLAG (mbt->flags, 12)){
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#ifdef __VERBOSE__
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printf("Can draw!\n");
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#endif
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}
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} |