[deliverable/linux.git] / include / asm-x86 / sigcontext.h

#ifndef _ASM_X86_SIGCONTEXT_H
#define _ASM_X86_SIGCONTEXT_H

#include <linux/compiler.h>
#include <asm/types.h>

#ifdef __i386__
/*
 * As documented in the iBCS2 standard..
 *
 * The first part of "struct _fpstate" is just the normal i387
 * hardware setup, the extra "status" word is used to save the
 * coprocessor status word before entering the handler.
 *
 * Pentium III FXSR, SSE support
 *	Gareth Hughes <gareth@valinux.com>, May 2000
 *
 * The FPU state data structure has had to grow to accommodate the
 * extended FPU state required by the Streaming SIMD Extensions.
 * There is no documented standard to accomplish this at the moment.
 */
struct _fpreg {
	unsigned short significand[4];
	unsigned short exponent;
};

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

struct _xmmreg {
	unsigned long element[4];
};

struct _fpstate {
	/* Regular FPU environment */
	unsigned long	cw;
	unsigned long	sw;
	unsigned long	tag;
	unsigned long	ipoff;
	unsigned long	cssel;
	unsigned long	dataoff;
	unsigned long	datasel;
	struct _fpreg	_st[8];
	unsigned short	status;
	unsigned short	magic;		/* 0xffff = regular FPU data only */

	/* FXSR FPU environment */
	unsigned long	_fxsr_env[6];	/* FXSR FPU env is ignored */
	unsigned long	mxcsr;
	unsigned long	reserved;
	struct _fpxreg	_fxsr_st[8];	/* FXSR FPU reg data is ignored */
	struct _xmmreg	_xmm[8];
	unsigned long	padding[56];
};

#define X86_FXSR_MAGIC		0x0000

#ifdef __KERNEL__
struct sigcontext {
	unsigned short gs, __gsh;
	unsigned short fs, __fsh;
	unsigned short es, __esh;
	unsigned short ds, __dsh;
	unsigned long di;
	unsigned long si;
	unsigned long bp;
	unsigned long sp;
	unsigned long bx;
	unsigned long dx;
	unsigned long cx;
	unsigned long ax;
	unsigned long trapno;
	unsigned long err;
	unsigned long ip;
	unsigned short cs, __csh;
	unsigned long flags;
	unsigned long sp_at_signal;
	unsigned short ss, __ssh;
	struct _fpstate __user * fpstate;
	unsigned long oldmask;
	unsigned long cr2;
};
#else /* __KERNEL__ */
/*
 * User-space might still rely on the old definition:
 */
struct sigcontext {
	unsigned short gs, __gsh;
	unsigned short fs, __fsh;
	unsigned short es, __esh;
	unsigned short ds, __dsh;
	unsigned long edi;
	unsigned long esi;
	unsigned long ebp;
	unsigned long esp;
	unsigned long ebx;
	unsigned long edx;
	unsigned long ecx;
	unsigned long eax;
	unsigned long trapno;
	unsigned long err;
	unsigned long eip;
	unsigned short cs, __csh;
	unsigned long eflags;
	unsigned long esp_at_signal;
	unsigned short ss, __ssh;
	struct _fpstate __user * fpstate;
	unsigned long oldmask;
	unsigned long cr2;
};
#endif /* !__KERNEL__ */

#else /* __i386__ */

/* FXSAVE frame */
/* Note: reserved1/2 may someday contain valuable data. Always save/restore
   them when you change signal frames. */
struct _fpstate {
	__u16	cwd;
	__u16	swd;
	__u16	twd;	/* Note this is not the same as the 32bit/x87/FSAVE twd */
	__u16	fop;
	__u64	rip;
	__u64	rdp;
	__u32	mxcsr;
	__u32	mxcsr_mask;
	__u32	st_space[32];	/* 8*16 bytes for each FP-reg */
	__u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg  */
	__u32	reserved2[24];
};

#ifdef __KERNEL__
struct sigcontext {
	unsigned long r8;
	unsigned long r9;
	unsigned long r10;
	unsigned long r11;
	unsigned long r12;
	unsigned long r13;
	unsigned long r14;
	unsigned long r15;
	unsigned long di;
	unsigned long si;
	unsigned long bp;
	unsigned long bx;
	unsigned long dx;
	unsigned long ax;
	unsigned long cx;
	unsigned long sp;
	unsigned long ip;
	unsigned long flags;
	unsigned short cs;
	unsigned short gs;
	unsigned short fs;
	unsigned short __pad0;
	unsigned long err;
	unsigned long trapno;
	unsigned long oldmask;
	unsigned long cr2;
	struct _fpstate __user *fpstate;	/* zero when no FPU context */
	unsigned long reserved1[8];
};
#else /* __KERNEL__ */
/*
 * User-space might still rely on the old definition:
 */
struct sigcontext {
	unsigned long r8;
	unsigned long r9;
	unsigned long r10;
	unsigned long r11;
	unsigned long r12;
	unsigned long r13;
	unsigned long r14;
	unsigned long r15;
	unsigned long rdi;
	unsigned long rsi;
	unsigned long rbp;
	unsigned long rbx;
	unsigned long rdx;
	unsigned long rax;
	unsigned long rcx;
	unsigned long rsp;
	unsigned long rip;
	unsigned long eflags;		/* RFLAGS */
	unsigned short cs;
	unsigned short gs;
	unsigned short fs;
	unsigned short __pad0;
	unsigned long err;
	unsigned long trapno;
	unsigned long oldmask;
	unsigned long cr2;
	struct _fpstate __user *fpstate;	/* zero when no FPU context */
	unsigned long reserved1[8];
};
#endif /* !__KERNEL__ */

#endif /* !__i386__ */

#endif
Commit	Line	Data
77129c5e TG	1	#ifndef _ASM_X86_SIGCONTEXT_H
	2	#define _ASM_X86_SIGCONTEXT_H
	3
	4	#include <linux/compiler.h>
	5	#include <asm/types.h>
	6
	7	#ifdef __i386__
	8	/*
	9	* As documented in the iBCS2 standard..
	10	*
	11	* The first part of "struct _fpstate" is just the normal i387
	12	* hardware setup, the extra "status" word is used to save the
	13	* coprocessor status word before entering the handler.
	14	*
	15	* Pentium III FXSR, SSE support
	16	* Gareth Hughes <gareth@valinux.com>, May 2000
	17	*
	18	* The FPU state data structure has had to grow to accommodate the
	19	* extended FPU state required by the Streaming SIMD Extensions.
	20	* There is no documented standard to accomplish this at the moment.
	21	*/
	22	struct _fpreg {
	23	unsigned short significand[4];
	24	unsigned short exponent;
	25	};
	26
	27	struct _fpxreg {
	28	unsigned short significand[4];
	29	unsigned short exponent;
	30	unsigned short padding[3];
	31	};
	32
	33	struct _xmmreg {
	34	unsigned long element[4];
	35	};
	36
	37	struct _fpstate {
	38	/* Regular FPU environment */
	39	unsigned long cw;
	40	unsigned long sw;
	41	unsigned long tag;
	42	unsigned long ipoff;
	43	unsigned long cssel;
	44	unsigned long dataoff;
	45	unsigned long datasel;
	46	struct _fpreg _st[8];
	47	unsigned short status;
	48	unsigned short magic; /* 0xffff = regular FPU data only */
	49
	50	/* FXSR FPU environment */
	51	unsigned long _fxsr_env[6]; /* FXSR FPU env is ignored */
	52	unsigned long mxcsr;
	53	unsigned long reserved;
	54	struct _fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */
	55	struct _xmmreg _xmm[8];
	56	unsigned long padding[56];
	57	};
	58
	59	#define X86_FXSR_MAGIC 0x0000
	60
1cdde191	61	#ifdef __KERNEL__
77129c5e TG	62	struct sigcontext {
	63	unsigned short gs, __gsh;
	64	unsigned short fs, __fsh;
	65	unsigned short es, __esh;
	66	unsigned short ds, __dsh;
742fa54a PA	67	unsigned long di;
	68	unsigned long si;
	69	unsigned long bp;
	70	unsigned long sp;
	71	unsigned long bx;
	72	unsigned long dx;
	73	unsigned long cx;
	74	unsigned long ax;
77129c5e TG	75	unsigned long trapno;
77129c5e TG	76	unsigned long err;
742fa54a	77	unsigned long ip;
77129c5e	78	unsigned short cs, __csh;
742fa54a PA	79	unsigned long flags;
742fa54a PA	80	unsigned long sp_at_signal;
77129c5e TG	81	unsigned short ss, __ssh;
	82	struct _fpstate __user * fpstate;
	83	unsigned long oldmask;
	84	unsigned long cr2;
	85	};
1cdde191 IM	86	#else /* __KERNEL__ */
	87	/*
	88	* User-space might still rely on the old definition:
	89	*/
	90	struct sigcontext {
	91	unsigned short gs, __gsh;
	92	unsigned short fs, __fsh;
	93	unsigned short es, __esh;
	94	unsigned short ds, __dsh;
	95	unsigned long edi;
	96	unsigned long esi;
	97	unsigned long ebp;
	98	unsigned long esp;
	99	unsigned long ebx;
	100	unsigned long edx;
	101	unsigned long ecx;
	102	unsigned long eax;
	103	unsigned long trapno;
	104	unsigned long err;
	105	unsigned long eip;
	106	unsigned short cs, __csh;
	107	unsigned long eflags;
	108	unsigned long esp_at_signal;
	109	unsigned short ss, __ssh;
	110	struct _fpstate __user * fpstate;
	111	unsigned long oldmask;
	112	unsigned long cr2;
	113	};
	114	#endif /* !__KERNEL__ */
77129c5e TG	115
	116	#else /* __i386__ */
	117
	118	/* FXSAVE frame */
	119	/* Note: reserved1/2 may someday contain valuable data. Always save/restore
	120	them when you change signal frames. */
	121	struct _fpstate {
	122	__u16 cwd;
	123	__u16 swd;
	124	__u16 twd; /* Note this is not the same as the 32bit/x87/FSAVE twd */
	125	__u16 fop;
	126	__u64 rip;
	127	__u64 rdp;
	128	__u32 mxcsr;
	129	__u32 mxcsr_mask;
	130	__u32 st_space[32]; /* 816 bytes for each FP-reg /
	131	__u32 xmm_space[64]; /* 1616 bytes for each XMM-reg /
	132	__u32 reserved2[24];
	133	};
	134
1cdde191	135	#ifdef __KERNEL__
77129c5e TG	136	struct sigcontext {
	137	unsigned long r8;
	138	unsigned long r9;
	139	unsigned long r10;
	140	unsigned long r11;
	141	unsigned long r12;
	142	unsigned long r13;
	143	unsigned long r14;
	144	unsigned long r15;
742fa54a PA	145	unsigned long di;
	146	unsigned long si;
	147	unsigned long bp;
	148	unsigned long bx;
	149	unsigned long dx;
	150	unsigned long ax;
	151	unsigned long cx;
	152	unsigned long sp;
	153	unsigned long ip;
	154	unsigned long flags;
77129c5e TG	155	unsigned short cs;
	156	unsigned short gs;
	157	unsigned short fs;
	158	unsigned short __pad0;
	159	unsigned long err;
	160	unsigned long trapno;
	161	unsigned long oldmask;
	162	unsigned long cr2;
	163	struct _fpstate __user fpstate; / zero when no FPU context */
	164	unsigned long reserved1[8];
	165	};
1cdde191 IM	166	#else /* __KERNEL__ */
	167	/*
	168	* User-space might still rely on the old definition:
	169	*/
	170	struct sigcontext {
	171	unsigned long r8;
	172	unsigned long r9;
	173	unsigned long r10;
	174	unsigned long r11;
	175	unsigned long r12;
	176	unsigned long r13;
	177	unsigned long r14;
	178	unsigned long r15;
	179	unsigned long rdi;
	180	unsigned long rsi;
	181	unsigned long rbp;
	182	unsigned long rbx;
	183	unsigned long rdx;
	184	unsigned long rax;
	185	unsigned long rcx;
	186	unsigned long rsp;
	187	unsigned long rip;
	188	unsigned long eflags; /* RFLAGS */
	189	unsigned short cs;
	190	unsigned short gs;
	191	unsigned short fs;
	192	unsigned short __pad0;
	193	unsigned long err;
	194	unsigned long trapno;
	195	unsigned long oldmask;
	196	unsigned long cr2;
	197	struct _fpstate __user fpstate; / zero when no FPU context */
	198	unsigned long reserved1[8];
	199	};
	200	#endif /* !__KERNEL__ */
77129c5e TG	201
	202	#endif /* !__i386__ */
	203
96a388de	204	#endif