#ifndef _I386_PTRACE_H
#define _I386_PTRACE_H

#define EBX 0
#define ECX 1
#define EDX 2
#define ESI 3
#define EDI 4
#define EBP 5
#define EAX 6
#define DS 7
#define ES 8
#define FS 9
#define GS 10
#define ORIG_EAX 11
#define EIP 12
#define CS  13
#define EFL 14
#define UESP 15
#define SS   16
#define FRAME_SIZE 17

/* this struct defines the way the registers are stored on the 
   stack during a system call. */

struct pt_regs {
	long ebx;
	long ecx;
	long edx;
	long esi;
	long edi;
	long ebp;
	long eax;
	int  xds;
	int  xes;
	long orig_eax;
	long eip;
	int  xcs;
	long eflags;
	long esp;
	int  xss;
};

/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
#define PTRACE_GETREGS            12
#define PTRACE_SETREGS            13
#define PTRACE_GETFPREGS          14
#define PTRACE_SETFPREGS          15
#define PTRACE_GETFPXREGS         18
#define PTRACE_SETFPXREGS         19

#define PTRACE_SETOPTIONS         21

struct ptrace_faultinfo {
	int is_write;
	unsigned long addr;
};

struct ptrace_ldt {
	int func;
  	void *ptr;
	unsigned long bytecount;
};

#define PTRACE_FAULTINFO 52
#define PTRACE_SIGPENDING 53
#define PTRACE_LDT 54
#define PTRACE_SWITCH_MM 55

/* options set using PTRACE_SETOPTIONS */
#define PTRACE_O_TRACESYSGOOD     0x00000001

enum EFLAGS {
        EF_CF   = 0x00000001,
        EF_PF   = 0x00000004,
        EF_AF   = 0x00000010,
        EF_ZF   = 0x00000040,
        EF_SF   = 0x00000080,
        EF_TF   = 0x00000100,
        EF_IE   = 0x00000200,
        EF_DF   = 0x00000400,
        EF_OF   = 0x00000800,
        EF_IOPL = 0x00003000,
        EF_IOPL_RING0 = 0x00000000,
        EF_IOPL_RING1 = 0x00001000,
        EF_IOPL_RING2 = 0x00002000,
        EF_NT   = 0x00004000,   /* nested task */
        EF_RF   = 0x00010000,   /* resume */
        EF_VM   = 0x00020000,   /* virtual mode */
        EF_AC   = 0x00040000,   /* alignment */
        EF_VIF  = 0x00080000,   /* virtual interrupt */
        EF_VIP  = 0x00100000,   /* virtual interrupt pending */
        EF_ID   = 0x00200000,   /* id */
};

#ifdef __KERNEL__
#define user_mode(regs) ((VM_MASK & (regs)->eflags) || (3 & (regs)->xcs))
#define instruction_pointer(regs) ((regs)->eip)
extern void show_regs(struct pt_regs *);
#endif

#endif
