//   - github.com/outcaste-io/ristretto
//   - github.com/clubpay/ronykit
//go:linkname cputicks

// Notable members of the hall of shame include:
//   - gvisor.dev/gvisor (from assembly)

	var d *_defer
	mp := acquirem()
	pp := mp.p.ptr()
	if len(pp.deferpool) == 0 && sched.deferpool != nil {
		lock(&sched.deferlock)
		for len(pp.deferpool) < cap(pp.deferpool)/2 && sched.deferpool != nil {
			d := sched.deferpool
			sched.deferpool = d.link
			d.link = nil
			pp.deferpool = append(pp.deferpool, d)
		}
		unlock(&sched.deferlock)
	}
	if n := len(pp.deferpool); n > 0 {
		d = pp.deferpool[n-1]

	// Restore g->sched (== m->curg->sched) from saved values.
	MOVD	0(RSP), R5
	MOVD	R5, (g_sched+gobuf_pc)(g)
	MOVD	RSP, R4
	ADD	$48, R4, R4
	MOVD	R4, (g_sched+gobuf_sp)(g)

	// Switch back to m->g0's stack and restore m->g0->sched.sp.
	// (Unlike m->curg, the g0 goroutine never uses sched.pc,
	// so we do not have to restore it.)
	MOVD	g_m(g), R8

	// schedule is hourly on the hour
	schedule := "0 * * * ?"

	ParseSchedule := func(schedule string) cron.Schedule {
		sched, err := cron.ParseStandard(schedule)
		if err != nil {
			t.Errorf("Error parsing schedule: %#v", err)
			return nil
		}
		return sched
	}
	recorder := record.NewFakeRecorder(50)
	// T1 is a scheduled start time of that schedule
	T1 := *topOfTheHour()

	LEAQ	fn+0(FP), AX
	SUBQ	SP, AX

	// Restore g->sched (== m->curg->sched) from saved values.
	get_tls(CX)
	MOVQ	g(CX), SI
	MOVQ	SP, DI
	ADDQ	AX, DI
	MOVQ	-8(DI), BX
	MOVQ	BX, (g_sched+gobuf_pc)(SI)
	MOVQ	DI, (g_sched+gobuf_sp)(SI)

	// Switch back to m->g0's stack and restore m->g0->sched.sp.
	// (Unlike m->curg, the g0 goroutine never uses sched.pc,
	// so we do not have to restore it.)

Go 1.7 does not require the binary argument.

Supported profile types are:
    - net: network blocking profile
    - sync: synchronization blocking profile
    - syscall: syscall blocking profile
    - sched: scheduler latency profile

Flags:
	-http=addr: HTTP service address (e.g., ':6060')
	-pprof=type: print a pprof-like profile instead
	-d=int: print debug info such as parsed events (1 for high-level, 2 for low-level)

	// buffers before we snapshotted it to begin with.
	lock(&sched.lock)
	mToFlush := allm
	for mp := mToFlush; mp != nil; mp = mp.alllink {
		mp.trace.link = mp.alllink
	}
	for mp := sched.freem; mp != nil; mp = mp.freelink {
		mp.trace.link = mToFlush
		mToFlush = mp
	}
	unlock(&sched.lock)

	// Iterate over our snapshot, flushing every buffer until we're done.
	//

// cached stacks around isn't a problem.
func markrootFreeGStacks() {
	// Take list of dead Gs with stacks.
	lock(&sched.gFree.lock)
	list := sched.gFree.stack
	sched.gFree.stack = gList{}
	unlock(&sched.gFree.lock)
	if list.empty() {
		return
	}

	// Free stacks.
	q := gQueue{list.head, list.head}
	for gp := list.head.ptr(); gp != nil; gp = gp.schedlink.ptr() {

	_defer    *_defer // innermost defer
	m         *m      // current m; offset known to arm liblink
	sched     gobuf
	syscallsp uintptr // if status==Gsyscall, syscallsp = sched.sp to use during gc
	syscallpc uintptr // if status==Gsyscall, syscallpc = sched.pc to use during gc
	syscallbp uintptr // if status==Gsyscall, syscallbp = sched.bp to use in fpTraceback
	stktopsp  uintptr // expected sp at top of stack, to check in traceback

	lock(&sched.sudoglock)
	var sg, sgnext *sudog
	for sg = sched.sudogcache; sg != nil; sg = sgnext {
		sgnext = sg.next
		sg.next = nil
	}
	sched.sudogcache = nil
	unlock(&sched.sudoglock)

	// Clear central defer pool.
	// Leave per-P pools alone, they have strictly bounded size.
	lock(&sched.deferlock)