// There's a short window wherein the goroutine may have entered _Gsyscall
		// but it still owns the P (it's not in _Psyscall yet). The goroutine entering
		// _Gsyscall is the tracer's signal that the P its bound to is also in a syscall,
		// so we need to emit a status that matches. See #64318.
		if w.mp.p.ptr() == pp && w.mp.curg != nil && readgstatus(w.mp.curg)&^_Gscan == _Gsyscall {
			status = traceProcSyscall
		}
	case _Psyscall:

				break
			}

			// We stopped the G, so we have to ready it later.
			stopped = true

			s = _Gwaiting
			fallthrough

		case _Grunnable, _Gsyscall, _Gwaiting:
			// Claim goroutine by setting scan bit.
			// This may race with execution or readying of gp.
			// The scan bit keeps it from transition state.
			if !castogscanstatus(gp, s, s|_Gscan) {
				break

		printCgoTraceback(&cgoCallers)
	}

	if readgstatus(gp)&^_Gscan == _Gsyscall {
		// Override registers if blocked in system call.
		pc = gp.syscallpc
		sp = gp.syscallsp
		flags &^= unwindTrap
	}
	if gp.m != nil && gp.m.vdsoSP != 0 {
		// Override registers if running in VDSO. This comes after the
		// _Gsyscall check to cover VDSO calls after entersyscall.
		pc = gp.m.vdsoPC
		sp = gp.m.vdsoSP

G_SCAN = read_runtime_const("'runtime._Gscan'", 0x1000)
G_SCANRUNNABLE = G_SCAN+G_RUNNABLE
G_SCANRUNNING = G_SCAN+G_RUNNING
G_SCANSYSCALL = G_SCAN+G_SYSCALL
G_SCANWAITING = G_SCAN+G_WAITING

sts = {
    G_IDLE: 'idle',
    G_RUNNABLE: 'runnable',
    G_RUNNING: 'running',
    G_SYSCALL: 'syscall',
    G_WAITING: 'waiting',
    G_MORIBUND_UNUSED: 'moribund',
    G_DEAD: 'dead',
    G_ENQUEUE_UNUSED: 'enqueue',

	// may transition the P to _Pidle (if it has no more work to
	// do), _Psyscall (when entering a syscall), or _Pgcstop (to
	// halt for the GC). The M may also hand ownership of the P
	// off directly to another M (e.g., to schedule a locked G).
	_Prunning

	// _Psyscall means a P is not running user code. It has
	// affinity to an M in a syscall but is not owned by it and
	// may be stolen by another M. This is similar to _Pidle but

		switch status {
		default:
			print("runtime: unexpected G.status ", hex(status), "\n")
			throw("dumpgs in STW - bad status")
		case _Gdead:
			// ok
		case _Grunnable,
			_Gsyscall,
			_Gwaiting:
			dumpgoroutine(gp)
		}
	})
}

func finq_callback(fn *funcval, obj unsafe.Pointer, nret uintptr, fint *_type, ot *ptrtype) {
	dumpint(tagQueuedFinalizer)

	tl.eventWriter(traceGoSyscall, procStatus).commit(ev)
}

// ProcSteal indicates that our current M stole a P from another M.
//
// inSyscall indicates that we're stealing the P from a syscall context.
//
// The caller must have ownership of pp.
func (tl traceLocker) ProcSteal(pp *p, inSyscall bool) {
	// Grab the M ID we stole from.
	mStolenFrom := pp.trace.mSyscallID
	pp.trace.mSyscallID = -1

	pp.m = 0
	gp.m.oldp.set(pp)
	gp.m.p = 0
	atomic.Store(&pp.status, _Psyscall)
	if sched.gcwaiting.Load() {
		systemstack(entersyscall_gcwait)
		save(pc, sp, bp)
	}

	gp.m.locks--
}

// Standard syscall entry used by the go syscall library and normal cgo calls.
//
// This is exported via linkname to assembly in the syscall package and x/sys.
//

		// remember when we've first observed the G blocked
		// needed only to output in traceback
		status := readgstatus(gp) // We are not in a scan state
		if (status == _Gwaiting || status == _Gsyscall) && gp.waitsince == 0 {
			gp.waitsince = work.tstart
		}

		// scanstack must be done on the system stack in case
		// we're trying to scan our own stack.
		systemstack(func() {

	// complete.
	//
	// TODO(austin): We may not need this if preemption were more
	// tightly synchronized on the G/P status and preemption
	// blocked transition into _Gsyscall/_Psyscall.
	preemptExtLock uint32
}

// Stubs so tests can link correctly. These should never be called.
func open(name *byte, mode, perm int32) int32 {
	throw("unimplemented")
	return -1
}