MOV	A1, 16(X2)	// argv

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.
	MOV	$runtime·g0(SB), g
	MOV	$(-64*1024), T0
	ADD	T0, X2, T1
	MOV	T1, g_stackguard0(g)
	MOV	T1, g_stackguard1(g)
	MOV	T1, (g_stack+stack_lo)(g)
	MOV	X2, (g_stack+stack_hi)(g)

	// if there is a _cgo_init, call it using the gcc ABI.
	MOV	_cgo_init(SB), T0
	BEQ	T0, ZERO, nocgo

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.
	MOVD	$runtime·g0(SB), g
	MOVD	R15, R11
	SUB	$(64*1024), R11
	MOVD	R11, g_stackguard0(g)
	MOVD	R11, g_stackguard1(g)
	MOVD	R11, (g_stack+stack_lo)(g)
	MOVD	R15, (g_stack+stack_hi)(g)

	// if there is a _cgo_init, call it using the gcc ABI.
	MOVD	_cgo_init(SB), R11
	CMPBEQ	R11, $0, nocgo

	MOVW	g, m_g0(R8)
	// save g->m = m0
	MOVW	R8, g_m(g)

	// create istack out of the OS stack
	// (1MB of system stack is available on iOS and Android)
	MOVW	$(-64*1024+104)(R13), R0
	MOVW	R0, g_stackguard0(g)
	MOVW	R0, g_stackguard1(g)
	MOVW	R0, (g_stack+stack_lo)(g)
	MOVW	R13, (g_stack+stack_hi)(g)

	BL	runtime·emptyfunc(SB)	// fault if stack check is wrong

#ifdef GOOS_openbsd

	ADD	$32, RSP
#endif

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.
	MOVD	$runtime·g0(SB), g
	MOVD	RSP, R7
	MOVD	$(-64*1024)(R7), R0
	MOVD	R0, g_stackguard0(g)
	MOVD	R0, g_stackguard1(g)
	MOVD	R0, (g_stack+stack_lo)(g)
	MOVD	R7, (g_stack+stack_hi)(g)

	// if there is a _cgo_init, call it using the gcc ABI.
	MOVD	_cgo_init(SB), R12
	CBZ	R12, nocgo

#ifdef GOOS_android

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.
	MOVD	$runtime·g0(SB), g
	BL	runtime·save_g(SB)
	MOVD	$(-64*1024), R31
	ADD	R31, R1, R3
	MOVD	R3, g_stackguard0(g)
	MOVD	R3, g_stackguard1(g)
	MOVD	R3, (g_stack+stack_lo)(g)
	MOVD	R1, (g_stack+stack_hi)(g)

	// If there is a _cgo_init, call it using the gcc ABI.
	MOVD	_cgo_init(SB), R12
	CMP	R12, $0
	BEQ	nocgo

	MOVL	BX, 124(SP)

	// set default stack bounds.
	// _cgo_init may update stackguard.
	MOVL	$runtime·g0(SB), BP
	LEAL	(-64*1024+104)(SP), BX
	MOVL	BX, g_stackguard0(BP)
	MOVL	BX, g_stackguard1(BP)
	MOVL	BX, (g_stack+stack_lo)(BP)
	MOVL	SP, (g_stack+stack_hi)(BP)

	// find out information about the processor we're on
	// first see if CPUID instruction is supported.
	PUSHFL
	PUSHFL

	MOVQ	BX, 32(SP)

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.
	MOVQ	$runtime·g0(SB), DI
	LEAQ	(-64*1024)(SP), BX
	MOVQ	BX, g_stackguard0(DI)
	MOVQ	BX, g_stackguard1(DI)
	MOVQ	BX, (g_stack+stack_lo)(DI)
	MOVQ	SP, (g_stack+stack_hi)(DI)

	// find out information about the processor we're on
	MOVL	$0, AX
	CPUID
	CMPL	AX, $0
	JE	nocpuinfo

	// Don't do anything on the g0 or gsignal stack.
	gp := getg()
	if gp == gp.m.g0 || gp == gp.m.gsignal {
		return
	}
	// Force a preemption, unless the stack is already poisoned.
	if gp.stackguard0 < stackPoisonMin {
		gp.stackguard0 = stackPreempt
	}
}

// mayMoreStackMove is a maymorestack hook that forces stack movement
// at every possible point.
//
// See mayMoreStackPreempt.
//
//go:nosplit

	thisg.m.morebuf.pc = 0
	thisg.m.morebuf.lr = 0
	thisg.m.morebuf.sp = 0
	thisg.m.morebuf.g = 0

	// NOTE: stackguard0 may change underfoot, if another thread
	// is about to try to preempt gp. Read it just once and use that same
	// value now and below.
	stackguard0 := atomic.Loaduintptr(&gp.stackguard0)

	// Be conservative about where we preempt.
	// We are interested in preempting user Go code, not runtime code.

			if gp.preemptStop && gp.preempt && gp.stackguard0 == stackPreempt && asyncM == gp.m && asyncM.preemptGen.Load() == asyncGen {
				break
			}

			// Temporarily block state transitions.
			if !castogscanstatus(gp, _Grunning, _Gscanrunning) {
				break
			}

			// Request synchronous preemption.
			gp.preemptStop = true
			gp.preempt = true
			gp.stackguard0 = stackPreempt