1 #ifndef _ASM_X86_USER32_H
2 #define _ASM_X86_USER32_H
3 
4 /* IA32 compatible user structures for ptrace.
5  * These should be used for 32bit coredumps too. */
6 
7 struct user_i387_ia32_struct {
8 	u32	cwd;
9 	u32	swd;
10 	u32	twd;
11 	u32	fip;
12 	u32	fcs;
13 	u32	foo;
14 	u32	fos;
15 	u32	st_space[20];   /* 8*10 bytes for each FP-reg = 80 bytes */
16 };
17 
18 /* FSAVE frame with extensions */
19 struct user32_fxsr_struct {
20 	unsigned short	cwd;
21 	unsigned short	swd;
22 	unsigned short	twd;	/* not compatible to 64bit twd */
23 	unsigned short	fop;
24 	int	fip;
25 	int	fcs;
26 	int	foo;
27 	int	fos;
28 	int	mxcsr;
29 	int	reserved;
30 	int	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
31 	int	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
32 	int	padding[56];
33 };
34 
35 struct user_regs_struct32 {
36 	__u32 ebx, ecx, edx, esi, edi, ebp, eax;
37 	unsigned short ds, __ds, es, __es;
38 	unsigned short fs, __fs, gs, __gs;
39 	__u32 orig_eax, eip;
40 	unsigned short cs, __cs;
41 	__u32 eflags, esp;
42 	unsigned short ss, __ss;
43 };
44 
45 struct user32 {
46   struct user_regs_struct32 regs; /* Where the registers are actually stored */
47   int u_fpvalid;		/* True if math co-processor being used. */
48 				/* for this mess. Not yet used. */
49   struct user_i387_ia32_struct i387;	/* Math Co-processor registers. */
50 /* The rest of this junk is to help gdb figure out what goes where */
51   __u32 u_tsize;	/* Text segment size (pages). */
52   __u32 u_dsize;	/* Data segment size (pages). */
53   __u32 u_ssize;	/* Stack segment size (pages). */
54   __u32 start_code;     /* Starting virtual address of text. */
55   __u32 start_stack;	/* Starting virtual address of stack area.
56 				   This is actually the bottom of the stack,
57 				   the top of the stack is always found in the
58 				   esp register.  */
59   __u32 signal;     		/* Signal that caused the core dump. */
60   int reserved;			/* No __u32er used */
61   __u32 u_ar0;	/* Used by gdb to help find the values for */
62 				/* the registers. */
63   __u32 u_fpstate;	/* Math Co-processor pointer. */
64   __u32 magic;		/* To uniquely identify a core file */
65   char u_comm[32];		/* User command that was responsible */
66   int u_debugreg[8];
67 };
68 
69 
70 #endif /* _ASM_X86_USER32_H */
71