InitHostState initializes host parameters.

NewState returns an initialized floating point state.

FP_SW_FRAME_OFFSET is the offset of FPSoftwareFrame in the fxsave/xsave area.

FP_XSTATE_MAGIC1 is the value of FPSoftwareFrame.Magic1.

FP_XSTATE_MAGIC2 is the value written to the 4 bytes inserted by Linux after the fxsave/xsave area in the signal frame.

FP_XSTATE_MAGIC2_SIZE is the size of FP_XSTATE_MAGIC2.

FXSAVE_AREA_SIZE is the size of the FXSAVE area.

XFEATURE_MASK_FPSSE is xsave features that are always enabled in signal frame fpstate.

ErrLoadingState indicates a failed restore due to unusable floating point state.

FPSoftwareFrame is equivalent to struct _fpx_sw_bytes, the data stored by Linux in bytes 464:511 of the fxsave/xsave frame.

State represents floating point state.