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- #ifndef ASM_X86__SIGCONTEXT32_H
- #define ASM_X86__SIGCONTEXT32_H
- /* signal context for 32bit programs. */
- #define X86_FXSR_MAGIC 0x0000
- struct _fpreg {
- unsigned short significand[4];
- unsigned short exponent;
- };
- struct _fpxreg {
- unsigned short significand[4];
- unsigned short exponent;
- unsigned short padding[3];
- };
- struct _xmmreg {
- __u32 element[4];
- };
- /* FSAVE frame with extensions */
- struct _fpstate_ia32 {
- /* Regular FPU environment */
- __u32 cw;
- __u32 sw;
- __u32 tag; /* not compatible to 64bit twd */
- __u32 ipoff;
- __u32 cssel;
- __u32 dataoff;
- __u32 datasel;
- struct _fpreg _st[8];
- unsigned short status;
- unsigned short magic; /* 0xffff = regular FPU data only */
- /* FXSR FPU environment */
- __u32 _fxsr_env[6];
- __u32 mxcsr;
- __u32 reserved;
- struct _fpxreg _fxsr_st[8];
- struct _xmmreg _xmm[8]; /* It's actually 16 */
- __u32 padding[56];
- };
- struct sigcontext_ia32 {
- unsigned short gs, __gsh;
- unsigned short fs, __fsh;
- unsigned short es, __esh;
- unsigned short ds, __dsh;
- unsigned int di;
- unsigned int si;
- unsigned int bp;
- unsigned int sp;
- unsigned int bx;
- unsigned int dx;
- unsigned int cx;
- unsigned int ax;
- unsigned int trapno;
- unsigned int err;
- unsigned int ip;
- unsigned short cs, __csh;
- unsigned int flags;
- unsigned int sp_at_signal;
- unsigned short ss, __ssh;
- unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
- unsigned int oldmask;
- unsigned int cr2;
- };
- #endif /* ASM_X86__SIGCONTEXT32_H */
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