aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/include/uapi/asm/sigcontext32.h
blob: ad1478c4ae1297b58ff8f1be6bece331769bb3b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
#ifndef _ASM_X86_SIGCONTEXT32_H
#define _ASM_X86_SIGCONTEXT32_H

#include <linux/types.h>

/* signal context for 32bit programs. */

#define X86_FXSR_MAGIC		0x0000

struct _fpreg {
	unsigned short significand[4];
	unsigned short exponent;
};

struct _fpxreg {
	unsigned short significand[4];
	unsigned short exponent;
	unsigned short padding[3];
};

struct _xmmreg {
	__u32	element[4];
};

/* FSAVE frame with extensions */
struct _fpstate_ia32 {
	/* Regular FPU environment */
	__u32 	cw;
	__u32	sw;
	__u32	tag;	/* not compatible to 64bit twd */
	__u32	ipoff;
	__u32	cssel;
	__u32	dataoff;
	__u32	datasel;
	struct _fpreg	_st[8];
	unsigned short	status;
	unsigned short	magic;		/* 0xffff = regular FPU data only */

	/* FXSR FPU environment */
	__u32	_fxsr_env[6];
	__u32	mxcsr;
	__u32	reserved;
	struct _fpxreg	_fxsr_st[8];
	struct _xmmreg	_xmm[8];	/* It's actually 16 */
	__u32	padding[44];
	union {
		__u32 padding2[12];
		struct _fpx_sw_bytes sw_reserved;
	};
};

struct sigcontext_ia32 {
       unsigned short gs, __gsh;
       unsigned short fs, __fsh;
       unsigned short es, __esh;
       unsigned short ds, __dsh;
       unsigned int di;
       unsigned int si;
       unsigned int bp;
       unsigned int sp;
       unsigned int bx;
       unsigned int dx;
       unsigned int cx;
       unsigned int ax;
       unsigned int trapno;
       unsigned int err;
       unsigned int ip;
       unsigned short cs, __csh;
       unsigned int flags;
       unsigned int sp_at_signal;
       unsigned short ss, __ssh;
       unsigned int fpstate;		/* really (struct _fpstate_ia32 *) */
       unsigned int oldmask;
       unsigned int cr2;
};

#endif /* _ASM_X86_SIGCONTEXT32_H */