_fpxreg            88 arch/x86/include/uapi/asm/sigcontext.h 	struct _fpxreg	_fxsr_st[8];	/* FXSR FPU reg data is ignored */
_fpxreg            43 arch/x86/include/uapi/asm/sigcontext32.h 	struct _fpxreg	_fxsr_st[8];