SliTaz Repositories

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/coreutils/stuff/sigcontext.h	Fri Apr 01 09:41:12 2011 +0000
     1.3 @@ -0,0 +1,143 @@
     1.4 +#ifndef _ASM_X86_SIGCONTEXT_H
     1.5 +#define _ASM_X86_SIGCONTEXT_H
     1.6 +
     1.7 +#include <asm/types.h>
     1.8 +
     1.9 +#ifdef __i386__
    1.10 +/*
    1.11 + * As documented in the iBCS2 standard..
    1.12 + *
    1.13 + * The first part of "struct _fpstate" is just the normal i387
    1.14 + * hardware setup, the extra "status" word is used to save the
    1.15 + * coprocessor status word before entering the handler.
    1.16 + *
    1.17 + * Pentium III FXSR, SSE support
    1.18 + *	Gareth Hughes <gareth@valinux.com>, May 2000
    1.19 + *
    1.20 + * The FPU state data structure has had to grow to accommodate the
    1.21 + * extended FPU state required by the Streaming SIMD Extensions.
    1.22 + * There is no documented standard to accomplish this at the moment.
    1.23 + */
    1.24 +struct _fpreg {
    1.25 +	unsigned short significand[4];
    1.26 +	unsigned short exponent;
    1.27 +};
    1.28 +
    1.29 +struct _fpxreg {
    1.30 +	unsigned short significand[4];
    1.31 +	unsigned short exponent;
    1.32 +	unsigned short padding[3];
    1.33 +};
    1.34 +
    1.35 +struct _xmmreg {
    1.36 +	unsigned long element[4];
    1.37 +};
    1.38 +
    1.39 +struct _fpstate {
    1.40 +	/* Regular FPU environment */
    1.41 +	unsigned long	cw;
    1.42 +	unsigned long	sw;
    1.43 +	unsigned long	tag;
    1.44 +	unsigned long	ipoff;
    1.45 +	unsigned long	cssel;
    1.46 +	unsigned long	dataoff;
    1.47 +	unsigned long	datasel;
    1.48 +	struct _fpreg	_st[8];
    1.49 +	unsigned short	status;
    1.50 +	unsigned short	magic;		/* 0xffff = regular FPU data only */
    1.51 +
    1.52 +	/* FXSR FPU environment */
    1.53 +	unsigned long	_fxsr_env[6];	/* FXSR FPU env is ignored */
    1.54 +	unsigned long	mxcsr;
    1.55 +	unsigned long	reserved;
    1.56 +	struct _fpxreg	_fxsr_st[8];	/* FXSR FPU reg data is ignored */
    1.57 +	struct _xmmreg	_xmm[8];
    1.58 +	unsigned long	padding[56];
    1.59 +};
    1.60 +
    1.61 +#define X86_FXSR_MAGIC		0x0000
    1.62 +
    1.63 +/*
    1.64 + * User-space might still rely on the old definition:
    1.65 + */
    1.66 +struct sigcontext {
    1.67 +	unsigned short gs, __gsh;
    1.68 +	unsigned short fs, __fsh;
    1.69 +	unsigned short es, __esh;
    1.70 +	unsigned short ds, __dsh;
    1.71 +	unsigned long edi;
    1.72 +	unsigned long esi;
    1.73 +	unsigned long ebp;
    1.74 +	unsigned long esp;
    1.75 +	unsigned long ebx;
    1.76 +	unsigned long edx;
    1.77 +	unsigned long ecx;
    1.78 +	unsigned long eax;
    1.79 +	unsigned long trapno;
    1.80 +	unsigned long err;
    1.81 +	unsigned long eip;
    1.82 +	unsigned short cs, __csh;
    1.83 +	unsigned long eflags;
    1.84 +	unsigned long esp_at_signal;
    1.85 +	unsigned short ss, __ssh;
    1.86 +	struct _fpstate * fpstate;
    1.87 +	unsigned long oldmask;
    1.88 +	unsigned long cr2;
    1.89 +};
    1.90 +
    1.91 +#else /* __i386__ */
    1.92 +
    1.93 +/* FXSAVE frame */
    1.94 +/* Note: reserved1/2 may someday contain valuable data. Always save/restore
    1.95 +   them when you change signal frames. */
    1.96 +struct _fpstate {
    1.97 +	__u16	cwd;
    1.98 +	__u16	swd;
    1.99 +	__u16	twd;	/* Note this is not the same as the 32bit/x87/FSAVE twd */
   1.100 +	__u16	fop;
   1.101 +	__u64	rip;
   1.102 +	__u64	rdp;
   1.103 +	__u32	mxcsr;
   1.104 +	__u32	mxcsr_mask;
   1.105 +	__u32	st_space[32];	/* 8*16 bytes for each FP-reg */
   1.106 +	__u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg  */
   1.107 +	__u32	reserved2[24];
   1.108 +};
   1.109 +
   1.110 +/*
   1.111 + * User-space might still rely on the old definition:
   1.112 + */
   1.113 +struct sigcontext {
   1.114 +	unsigned long r8;
   1.115 +	unsigned long r9;
   1.116 +	unsigned long r10;
   1.117 +	unsigned long r11;
   1.118 +	unsigned long r12;
   1.119 +	unsigned long r13;
   1.120 +	unsigned long r14;
   1.121 +	unsigned long r15;
   1.122 +	unsigned long rdi;
   1.123 +	unsigned long rsi;
   1.124 +	unsigned long rbp;
   1.125 +	unsigned long rbx;
   1.126 +	unsigned long rdx;
   1.127 +	unsigned long rax;
   1.128 +	unsigned long rcx;
   1.129 +	unsigned long rsp;
   1.130 +	unsigned long rip;
   1.131 +	unsigned long eflags;		/* RFLAGS */
   1.132 +	unsigned short cs;
   1.133 +	unsigned short gs;
   1.134 +	unsigned short fs;
   1.135 +	unsigned short __pad0;
   1.136 +	unsigned long err;
   1.137 +	unsigned long trapno;
   1.138 +	unsigned long oldmask;
   1.139 +	unsigned long cr2;
   1.140 +	struct _fpstate *fpstate;	/* zero when no FPU context */
   1.141 +	unsigned long reserved1[8];
   1.142 +};
   1.143 +
   1.144 +#endif /* !__i386__ */
   1.145 +
   1.146 +#endif