/* 内核入口函数定义: */ /* void cmain (unsigned long magic, unsigned long addr) */ pushl %ebx pushl %eax call EXT_C(cmain)2.3 内核代码这部分的代码和官方文档中的 kernel.c 一致。该内核的主要功能是在屏幕上打印出 Multiboot2 信息结构,主要用于测试 Multiboot2 引导加载程序,同时也可作为实现...
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英文好的筒子可以直接看Why BIOS loads MBR into 0x7C00 in x86 ? 简单的说,0x7c00=32KB-1024B,是32K的最后一个KB,这个magic number不是intel决定的,所以我们在X86相关的文档中无法找到这个magic number的说明,这个magic number属于 BIOS specifiction 。这个0x7c00 是 IBM PC 5150 BIOS developer team 决定的。
grub_dprintf ("ubootdisk","Opening '%s' failed, invalid number\n", name);gotofail; }if(name[1] !='d') { grub_dprintf ("ubootdisk","Opening '%s' failed, invalid name\n", name);gotofail; }switch(name[0]) {case'h': d = get_hd_device (num);break;default:gotofail; }if(!
要想在Linux系统上实现逆向工程，分析，设计或查杀病毒和恶意代码，你不得不深入掌握其可执行文件的ELF...
// ah = 0x01 ( invalid function ) movb $0x41, %ah movw $0x55aa, %bx int $0x13 /* * %dl may have been clobbered by INT 13, AH=41H. * This happens, for example, with AST BIOS 1.04. */ // dl 可能已被 INT 13 , AH = 41H , BX = 55AAH 调用修改,重新改回!
}if(head.magic != grub_cpu_to_le32_compile_time (MO_MAGIC_NUMBER)) { grub_file_close (fd);returngrub_error (GRUB_ERR_BAD_FILE_TYPE,"mo: invalid mo magic in file: %s", filename); }if(head.version !=0) { grub_file_close (fd);returngrub_error (GRUB_ERR_BAD_FILE_TYPE,"mo:...
return grub_error (GRUB_ERR_BAD_OS, N_("invalid arch-dependent ELF magic")); - *shdr = grub_malloc ((grub_uint32_t) e->e_shnum * e->e_shentsize); + *shdr = grub_calloc (e->e_shnum, e->e_shentsize); if (! *shdr) return grub_errno; diff --git a/grub-core...
+#define GRUB_SLR_ENTRY_INVALID 0x0000 +#define GRUB_SLR_ENTRY_DL_INFO 0x0001 +#define GRUB_SLR_ENTRY_LOG_INFO 0x0002 +#define GRUB_SLR_ENTRY_DRTM_POLICY 0x0003 +#define GRUB_SLR_ENTRY_INTEL_INFO 0x0004 +#define GRUB_SLR_ENTRY_AMD_INFO 0x0005 +#define GRUB_SLR_ENTRY_ARM_INFO 0x...
based on IRC discussion with proti user. efi boot is disabled. bare-metal with 8 hard disks + PERC raid controller. it is not possible to disable raid controller, so it was configured as 8 separate raid0 disks with one disk. grub fails e...