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#ifndef _LINUX_HEAD_H
#define _LINUX_HEAD_H
struct desc_struct {
unsigned long a,b;
};
extern struct desc_struct idt_table[],gdt_table[];
extern struct desc_struct *idt, *gdt;
struct Xgt_desc_struct {
unsigned short size;
unsigned long address __attribute__((packed));
};
#define idt_descr (*(struct Xgt_desc_struct *)((char *)&idt - 2))
#define gdt_descr (*(struct Xgt_desc_struct *)((char *)&gdt - 2))
#define GDT_NUL 0
#define GDT_CODE 1
#define GDT_DATA 2
#define GDT_TMP 3
#define LDT_NUL 0
#define LDT_CODE 1
#define LDT_DATA 2
#endif
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