mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 09:02:00 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
#ifndef _ASMi386_SIGCONTEXT_H
|
|
#define _ASMi386_SIGCONTEXT_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
/*
|
|
* 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
|
|
|
|
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
|