/* Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */

#ifndef _BITS_SIGCONTEXT_H
#define _BITS_SIGCONTEXT_H 1

#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
#endif

#include <bits/wordsize.h>

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

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

struct _xmmreg
{
__uint32_t element[4];
};



#if __WORDSIZE == 32

struct _fpstate
{
/* Regular FPU environment. */
__uint32_t cw;
__uint32_t sw;
__uint32_t tag;
__uint32_t ipoff;
__uint32_t cssel;
__uint32_t dataoff;
__uint32_t datasel;
struct _fpreg _st[8];
unsigned short status;
unsigned short magic;

/* FXSR FPU environment. */
__uint32_t _fxsr_env[6];
__uint32_t mxcsr;
__uint32_t reserved;
struct _fpxreg _fxsr_st[8];
struct _xmmreg _xmm[8];
__uint32_t padding[56];
};

#ifndef sigcontext_struct
/* Kernel headers before 2.1.1 define a struct sigcontext_struct, but
we need sigcontext. Some packages have come to rely on
sigcontext_struct being defined on 32-bit x86, so define this for
their benefit. */
# define sigcontext_struct sigcontext
#endif

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 * fpstate;
unsigned long oldmask;
unsigned long cr2;
};

#else /* __WORDSIZE == 64 */

struct _fpstate
{
/* FPU environment matching the 64-bit FXSAVE layout. */
__uint16_t cwd;
__uint16_t swd;
__uint16_t ftw;
__uint16_t fop;
__uint64_t rip;
__uint64_t rdp;
__uint32_t mxcsr;
__uint32_t mxcr_mask;
struct _fpxreg _st[8];
struct _xmmreg _xmm[16];
__uint32_t padding[24];
};

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;
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 * fpstate;
unsigned long __reserved1 [8];
};

#endif /* __WORDSIZE == 64 */

#endif /* _BITS_SIGCONTEXT_H */