}
	// Examine the CPU profiler's view. Filter it to only include samples from
	// the single test goroutine. Use labels to execute that filter: they should
	// apply to all work done while that goroutine is getg().m.curg, and they
	// should apply to no other goroutines.
	pprofStacks := make(map[string]int)
	for _, s := range prof.Sample {
		if s.Label["tracing"] != nil {
			var fns []string
			var leaf string

	// switch back to m->curg stack.
	// NOTE: unwindm knows that the saved g->sched.sp is at 8(R29) aka savedsp-16(SP).
	MOVV	m_g0(R12), R19
	MOVV	(g_sched+gobuf_sp)(R19), R13
	MOVV	R13, savedsp-24(SP) // must match frame size
	MOVV	R3, (g_sched+gobuf_sp)(R19)

	// Switch to m->curg stack and call runtime.cgocallbackg.
	// Because we are taking over the execution of m->curg

	// GoSwitch expects that the current G is running and that we haven't
	// switched yet for correct status emission.
	if trace.ok() {
		trace.GoSwitch(gnext, exit)
	}

	// Start running next, without heavy scheduling machinery.
	// Set mp.curg and gnext.m and then update scheduling state
	// directly if possible.
	setGNoWB(&mp.curg, gnext)
	setMNoWB(&gnext.m, mp)

	// save that information (m->curg->sched) so we can restore it.
	// We can restore m->curg->sched.sp easily, because calling
	// runtime.cgocallbackg leaves SP unchanged upon return.
	// To save m->curg->sched.pc, we push it onto the curg stack and
	// open a frame the same size as cgocallback's g0 frame.
	// Once we switch to the curg stack, the pushed PC will appear
	// to be the return PC of cgocallback, so that the traceback

}

func tracebackothers(me *g) {
	level, _, _ := gotraceback()

	// Show the current goroutine first, if we haven't already.
	curgp := getg().m.curg
	if curgp != nil && curgp != me {
		print("\n")
		goroutineheader(curgp)
		traceback(^uintptr(0), ^uintptr(0), 0, curgp)
	}

	// We can't call locking forEachG here because this may be during fatal

// the signal case.
//
//go:systemstack
func suspendG(gp *g) suspendGState {
	if mp := getg().m; mp.curg != nil && readgstatus(mp.curg) == _Grunning {
		// Since we're on the system stack of this M, the user
		// G is stuck at an unsafe point. If another goroutine
		// were to try to preempt m.curg, it could deadlock.
		throw("suspendG from non-preemptible goroutine")
	}

func racefree(p unsafe.Pointer, sz uintptr) {
	racecall(&__tsan_free, uintptr(p), sz, 0, 0)
}

//go:nosplit
func racegostart(pc uintptr) uintptr {
	gp := getg()
	var spawng *g
	if gp.m.curg != nil {
		spawng = gp.m.curg
	} else {
		spawng = gp
	}

	var racectx uintptr
	racecall(&__tsan_go_start, spawng.racectx, uintptr(unsafe.Pointer(&racectx)), pc, 0)
	return racectx
}

//go:nosplit

	// but *not* resuming what had been running, we need to
	// save that information (m->curg->sched) so we can restore it.
	// We can restore m->curg->sched.sp easily, because calling
	// runtime.cgocallbackg leaves SP unchanged upon return.
	// To save m->curg->sched.pc, we push it onto the curg stack and
	// open a frame the same size as cgocallback's g0 frame.
	// Once we switch to the curg stack, the pushed PC will appear

	// We can restore m->curg->sched.sp easily, because calling
	// runtime.cgocallbackg leaves SP unchanged upon return.
	// To save m->curg->sched.pc, we push it onto the curg stack and
	// open a frame the same size as cgocallback's g0 frame.
	// Once we switch to the curg stack, the pushed PC will appear
	// to be the return PC of cgocallback, so that the traceback

	}
	if thisg.m.morebuf.g.ptr() != thisg.m.curg {
		print("runtime: newstack called from g=", hex(thisg.m.morebuf.g), "\n"+"\tm=", thisg.m, " m->curg=", thisg.m.curg, " m->g0=", thisg.m.g0, " m->gsignal=", thisg.m.gsignal, "\n")
		morebuf := thisg.m.morebuf
		traceback(morebuf.pc, morebuf.sp, morebuf.lr, morebuf.g.ptr())
		throw("runtime: wrong goroutine in newstack")
	}

	gp := thisg.m.curg

	if thisg.m.curg.throwsplit {