// sysMunmap calls the munmap system call. It is implemented in assembly.
func sysMunmap(addr unsafe.Pointer, n uintptr)

// callCgoMunmap calls the munmap function in the runtime/cgo package
// using the GCC calling convention. It is implemented in assembly.

	MOVW	$-4096, R5
	BGEU	R5, R4, 2(PC)
	MOVV	R0, 0xf3(R0)	// crash
	RET

// Call the function stored in _cgo_munmap using the GCC calling convention.
// This must be called on the system stack.
// func callCgoMunmap(addr unsafe.Pointer, n uintptr)
TEXT runtime·callCgoMunmap(SB),NOSPLIT,$0
	MOVV	addr+0(FP), R4
	MOVV	n+8(FP), R5
	MOVV	_cgo_munmap(SB), R13
	SUBV	$16, R3		// reserve 16 bytes for sp-8 where fp may be saved.