sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _BITS_SIGCONTEXT_H
  20 #define _BITS_SIGCONTEXT_H  1
  21
  22 #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
  23 # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
  24 #endif
  25
  26 #include <bits/wordsize.h>
  27
  28 struct _fpreg
  29 {
  30   unsigned short significand[4];
  31   unsigned short exponent;
  32 };
  33
  34 struct _fpxreg
  35 {
  36   unsigned short significand[4];
  37   unsigned short exponent;
  38   unsigned short padding[3];
  39 };
  40
  41 struct _xmmreg
  42 {
  43   __uint32_t    element[4];
  44 };
  45
  46
  47
  48 #if __WORDSIZE == 32
  49
  50 struct _fpstate
  51 {
  52   /* Regular FPU environment.  */
  53   __uint32_t    cw;
  54   __uint32_t            sw;
  55   __uint32_t            tag;
  56   __uint32_t            ipoff;
  57   __uint32_t            cssel;
  58   __uint32_t            dataoff;
  59   __uint32_t            datasel;
  60   struct _fpreg _st[8];
  61   unsigned short status;
  62   unsigned short magic;
  63
  64   /* FXSR FPU environment.  */
  65   __uint32_t            _fxsr_env[6];
  66   __uint32_t            mxcsr;
  67   __uint32_t            reserved;
  68   struct _fpxreg        _fxsr_st[8];
  69   struct _xmmreg        _xmm[8];
  70   __uint32_t            padding[56];
  71 };
  72
  73 struct sigcontext
  74 {
  75   unsigned short gs, __gsh;
  76   unsigned short fs, __fsh;
  77   unsigned short es, __esh;
  78   unsigned short ds, __dsh;
  79   unsigned long edi;
  80   unsigned long esi;
  81   unsigned long ebp;
  82   unsigned long esp;
  83   unsigned long ebx;
  84   unsigned long edx;
  85   unsigned long ecx;
  86   unsigned long eax;
  87   unsigned long trapno;
  88   unsigned long err;
  89   unsigned long eip;
  90   unsigned short cs, __csh;
  91   unsigned long eflags;
  92   unsigned long esp_at_signal;
  93   unsigned short ss, __ssh;
  94   struct _fpstate * fpstate;
  95   unsigned long oldmask;
  96   unsigned long cr2;
  97 };
  98
  99 #else /* __WORDSIZE == 64 */
 100
 101 struct _fpstate
 102 {
 103   /* FPU environment matching the 64-bit FXSAVE layout.  */
 104   __uint16_t            cwd;
 105   __uint16_t            swd;
 106   __uint16_t            ftw;
 107   __uint16_t            fop;
 108   __uint64_t            rip;
 109   __uint64_t            rdp;
 110   __uint32_t            mxcsr;
 111   __uint32_t            mxcr_mask;
 112   struct _fpxreg        _st[8];
 113   struct _xmmreg        _xmm[16];
 114   __uint32_t            padding[24];
 115 };
 116
 117 struct sigcontext
 118 {
 119   unsigned long r8;
 120   unsigned long r9;
 121   unsigned long r10;
 122   unsigned long r11;
 123   unsigned long r12;
 124   unsigned long r13;
 125   unsigned long r14;
 126   unsigned long r15;
 127   unsigned long rdi;
 128   unsigned long rsi;
 129   unsigned long rbp;
 130   unsigned long rbx;
 131   unsigned long rdx;
 132   unsigned long rax;
 133   unsigned long rcx;
 134   unsigned long rsp;
 135   unsigned long rip;
 136   unsigned long eflags;
 137   unsigned short cs;
 138   unsigned short gs;
 139   unsigned short fs;
 140   unsigned short __pad0;
 141   unsigned long err;
 142   unsigned long trapno;
 143   unsigned long oldmask;
 144   unsigned long cr2;
 145   struct _fpstate * fpstate;
 146   unsigned long __reserved1 [8];
 147 };
 148
 149 #endif /* __WORDSIZE == 64 */
 150
 151 #endif /* _BITS_SIGCONTEXT_H */