// Force SPWRITE. This function doesn't actually write SP,
	// but it is called with a special calling convention where
	// the caller doesn't save LR on stack but passes it as a
	// register (R3), and the unwinder currently doesn't understand.
	// Make it SPWRITE to stop unwinding. (See issue 54332)
	MOVW	R13, R13

	MOVW	$0, R7
	B runtime·morestack(SB)

// reflectcall: call a function with the given argument list

	gp.stack = new
	gp.stackguard0 = new.lo + stackGuard // NOTE: might clobber a preempt request
	gp.sched.sp = new.hi - used
	gp.stktopsp += adjinfo.delta

	// Adjust pointers in the new stack.
	var u unwinder
	for u.init(gp, 0); u.valid(); u.next() {
		adjustframe(&u.frame, &adjinfo)
	}

	// free old stack
	if stackPoisonCopy != 0 {
		fillstack(old, 0xfc)
	}
	stackfree(old)
}

			// stack trace, and there only the real PCs are printed, not the virtual ones.
			// So check to see if the implied virtual PC for this PC (obtained from the
			// unwinder itself) is the next PC in ci.callers. If not, insert it.
			// The +1 here correspond to the pc-- above: the output of Callers
			// and therefore the input to CallersFrames is return PCs from the stack;

	if p.lr == 0 {
		return false
	}

	gp := getg()
	systemstack(func() {
		var limit uintptr
		if d := gp._defer; d != nil {
			limit = d.sp
		}

		var u unwinder
		u.initAt(p.lr, uintptr(p.fp), 0, gp, 0)
		for {
			if !u.valid() {
				p.lr = 0
				return // ok == false
			}

			// TODO(mdempsky): If we populate u.frame.fn.deferreturn for

	// Force SPWRITE. This function doesn't actually write SP,
	// but it is called with a special calling convention where
	// the caller doesn't save LR on stack but passes it as a
	// register (R5), and the unwinder currently doesn't understand.
	// Make it SPWRITE to stop unwinding. (See issue 54332)
	// Use OR R0, R1 instead of MOVD R1, R1 as the MOVD instruction
	// has a special affect on Power8,9,10 by lowering the thread 

	// Force SPWRITE. This function doesn't actually write SP,
	// but it is called with a special calling convention where
	// the caller doesn't save LR on stack but passes it as a
	// register (R3), and the unwinder currently doesn't understand.
	// Make it SPWRITE to stop unwinding. (See issue 54332)
	MOVD	RSP, RSP

	MOVW	$0, R26
	B runtime·morestack(SB)

		}
	}
	return gp.m.lockedExt, gp.m.lockedInt
}

//go:noinline
func TracebackSystemstack(stk []uintptr, i int) int {
	if i == 0 {
		pc, sp := getcallerpc(), getcallersp()
		var u unwinder
		u.initAt(pc, sp, 0, getg(), unwindJumpStack) // Don't ignore errors, for testing
		return tracebackPCs(&u, 0, stk)
	}
	n := 0
	systemstack(func() {
		n = TracebackSystemstack(stk, i-1)
	})
	return n

	cb(frame)

	if raceenabled {
		racereleasemerge(unsafe.Pointer(&racecgosync))
	}

	// Do not unwind m->g0->sched.sp.
	// Our caller, cgocallback, will do that.
	restore = false
}

func unwindm(restore *bool) {
	if *restore {
		// Restore sp saved by cgocallback during
		// unwind of g's stack (see comment at top of file).
		mp := acquirem()
		sched := &mp.g0.sched

	localIndex, ok := s.globalToLocal[globalIndex]
	if !ok {
		// We know where to unwind to when we need to unwind a body identified
		// by globalIndex. But there may be no instructions generated by that
		// body (it's empty, or its instructions were CSEd with other things, etc.).
		// In that case, we don't need an unwind entry.
		// TODO: is this really right? Seems to happen a whole lot...
		return
	}

			default:
				panic("bad target for CALL")
			}

			// return value of call is on the top of the stack, indicating whether to unwind the WebAssembly stack
			if call.As == ACALLNORESUME && call.To.Sym != sigpanic { // sigpanic unwinds the stack, but it never resumes
				// trying to unwind WebAssembly stack but call has no resume point, terminate with error
				p = appendp(p, AIf)
				p = appendp(p, obj.AUNDEF)