include/asm-i386/sigcontext.h

   1 #ifndef _ASMi386_SIGCONTEXT_H
   2 #define _ASMi386_SIGCONTEXT_H
   3
   4 /*
   5  * As documented in the iBCS2 standard..
   6  *
   7  * The first part of "struct _fpstate" is just the
   8  * normal i387 hardware setup, the extra "status"
   9  * word is used to save the coprocessor status word
  10  * before entering the handler.
  11  */
  12 struct _fpreg {
  13         unsigned short significand[4];
  14         unsigned short exponent;
  15 };
  16
  17 struct _fpstate {
  18         unsigned long   cw,
  19                         sw,
  20                         tag,
  21                         ipoff,
  22                         cssel,
  23                         dataoff,
  24                         datasel;
  25         struct _fpreg   _st[8];
  26         unsigned long   status;
  27 };
  28
  29 struct sigcontext {
  30         unsigned short gs, __gsh;
  31         unsigned short fs, __fsh;
  32         unsigned short es, __esh;
  33         unsigned short ds, __dsh;
  34         unsigned long edi;
  35         unsigned long esi;
  36         unsigned long ebp;
  37         unsigned long esp;
  38         unsigned long ebx;
  39         unsigned long edx;
  40         unsigned long ecx;
  41         unsigned long eax;
  42         unsigned long trapno;
  43         unsigned long err;
  44         unsigned long eip;
  45         unsigned short cs, __csh;
  46         unsigned long eflags;
  47         unsigned long esp_at_signal;
  48         unsigned short ss, __ssh;
  49         struct _fpstate * fpstate;
  50         unsigned long oldmask;
  51         unsigned long cr2;
  52 };
  53
  54
  55 #endif