TEXT _rt0_arm64_netbsd_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_netbsd_lib_argc<>(SB)
	MOVD	R1, _rt0_arm64_netbsd_lib_argv<>(SB)

	// Synchronous initialization.
	MOVD	$runtime·libpreinit(SB), R4
	BL	(R4)

TEXT _rt0_arm64_openbsd_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_openbsd_lib_argc<>(SB)
	MOVD	R1, _rt0_arm64_openbsd_lib_argv<>(SB)

	// Synchronous initialization.
	MOVD	$runtime·libpreinit(SB), R4
	BL	(R4)

func isGZ(b []byte) bool {
	return len(b) > 2 && bytes.Equal(b[:2], gzMagicNumber)
}

func getFileFromGZ(b []byte) []byte {
	buf := bytes.NewBuffer(b)

	zr, err := gzip.NewReader(buf)
	if err != nil {
		return nil
	}

	ret, err := io.ReadAll(zr)
	if err != nil {
		return nil
	}
	return ret
}

// Just do the best effort.
// If an error is encountered, just return the original bytes.

TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_linux_lib_argc<>(SB)
	MOVD	R1, _rt0_arm64_linux_lib_argv<>(SB)

	// Synchronous initialization.
	MOVD	$runtime·libpreinit(SB), R4
	BL	(R4)

TEXT _rt0_arm64_freebsd_lib(SB),NOSPLIT,$184
	// Preserve callee-save registers.
	SAVE_R19_TO_R28(24)
	SAVE_F8_TO_F15(104)

	// Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go
	MOVD	ZR, g

	MOVD	R0, _rt0_arm64_freebsd_lib_argc<>(SB)
	MOVD	R1, _rt0_arm64_freebsd_lib_argv<>(SB)

	// Synchronous initialization.
	MOVD	$runtime·libpreinit(SB), R4
	BL	(R4)

}

func rconv(r int) string {
	ext := (r >> 5) & 7
	if r == REGG {
		return "g"
	}
	switch {
	case REG_R0 <= r && r <= REG_R30:
		return fmt.Sprintf("R%d", r-REG_R0)
	case r == REG_R31:
		return "ZR"
	case REG_F0 <= r && r <= REG_F31:
		return fmt.Sprintf("F%d", r-REG_F0)
	case REG_V0 <= r && r <= REG_V31:
		return fmt.Sprintf("V%d", r-REG_V0)
	case r == REGSP:
		return "RSP"

	STP	(R12, R13), -16(R5)
	RET

	// Copy more than 128 bytes.
copy_long:
	ADD	R1, R2, R4 // R4 points just past the last source byte
	ADD	R0, R2, R5 // R5 points just past the last destination byte
	MOVD	ZR, R7
	MOVD	ZR, R8

	CMP	$1024, R2
	BLT	backward_check
	// feature detect to decide how to align
	MOVBU	runtime·arm64UseAlignedLoads(SB), R6
	CBNZ	R6, use_aligned_loads
	MOVD	R0, R7
	MOVD	R5, R8

		case "arm64":
			if parts[3] == "MOVWU" {
				// The unpreemptible region starts after the
				// load of runtime.writeBarrier.
				startedWB = true
			}
			if parts[3] == "MOVD" && parts[4] == "ZR," {
				// The unpreemptible region ends after the
				// write of nil.
				doneWB = true
			}
		case "amd64":
			if parts[3] == "CMPL" {
				startedWB = true
			}

	MOVHU.P	2(R1), R5
	CMP	R4, R5
	BNE	not_equal
lt_2:
	TBZ	$0, R2, equal
one:
	MOVBU	(R0), R4
	MOVBU	(R1), R5
	CMP	R4, R5
	BNE	not_equal
equal:
	MOVD	$1, R0
	RET
not_equal:
	MOVB	ZR, R0

	f, e := os.Open(downloadPath)
	if e != nil {
		return e
	}
	if st, e := f.Stat(); e == nil {
		sz = st.Size()
	}
	defer f.Close()
	r = f

	zr, e := zip.NewReader(r.(io.ReaderAt), sz)
	if e != nil {
		return e
	}
	for _, file := range zr.File {
		if !file.FileInfo().IsDir() && strings.HasSuffix(file.Name, "xl.meta") {
			r, e := file.Open()
			if e != nil {
				return e
			}