func racemalloc(p unsafe.Pointer, sz uintptr)                               { throw("race") }
func racefree(p unsafe.Pointer, sz uintptr)                                 { throw("race") }
func racegostart(pc uintptr) uintptr                                        { throw("race"); return 0 }
func racegoend()                                                            { throw("race") }

	racecall(&__tsan_malloc, 0, 0, uintptr(p), sz)
}

//go:nosplit
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

		// so there is no chance of getg().m being reassigned
		// out from under us while this function executes.
		tsLocal := &getg().m.p.ptr().timers
		if tsLocal.raceCtx == 0 {
			tsLocal.raceCtx = racegostart(abi.FuncPCABIInternal((*timers).run) + sys.PCQuantum)
		}
		raceacquirectx(tsLocal.raceCtx, unsafe.Pointer(t))
	}

	if t.state&(timerModified|timerZombie) != 0 {
		badTimer()
	}

	f := t.f

	mp.isextra = true
	// mark we are in C by default.
	mp.isExtraInC = true
	mp.lockedInt++
	mp.lockedg.set(gp)
	gp.lockedm.set(mp)
	gp.goid = sched.goidgen.Add(1)
	if raceenabled {
		gp.racectx = racegostart(abi.FuncPCABIInternal(newextram) + sys.PCQuantum)
	}
	// put on allg for garbage collector
	allgadd(gp)

	// gp is now on the allg list, but we don't want it to be

		}

		// We'll releasem after this point and thus this P may run
		// something else. We must clear the worker mode to avoid
		// attributing the mode to a different (non-worker) G in
		// traceGoStart.
		pp.gcMarkWorkerMode = gcMarkWorkerNotWorker

		// If this worker reached a background mark completion
		// point, signal the main GC goroutine.
		if incnwait == work.nproc && !gcMarkWorkAvailable(nil) {