expandedStack := pprof_makeProfStack()
	for _, r := range records {
		values[0] = r.Count
		values[1] = int64(float64(r.Cycles) / cpuGHz)
		// For count profiles, all stack addresses are
		// return PCs, which is what appendLocsForStack expects.
		n := pprof_fpunwindExpand(expandedStack[:], r.Stack)
		locs = b.appendLocsForStack(locs[:0], expandedStack[:n])
		b.pbSample(values, locs, nil)
	}
	b.build()
	return nil

func init() {
	f := findfunc(abi.FuncPCABI0(asyncPreempt))
	total := funcMaxSPDelta(f)
	f = findfunc(abi.FuncPCABIInternal(asyncPreempt2))
	total += funcMaxSPDelta(f)
	// Add some overhead for return PCs, etc.
	asyncPreemptStack = uintptr(total) + 8*goarch.PtrSize
	if asyncPreemptStack > stackNosplit {
		// We need more than the nosplit limit. This isn't
		// unsafe, but it may limit asynchronous preemption.
		//

// Frames is an iterator over the frames in a Stack.
func (s Stack) Frames(yield func(f StackFrame) bool) bool {
	if s.id == 0 {
		return true
	}
	stk := s.table.stacks.mustGet(s.id)
	for _, pc := range stk.pcs {
		f := s.table.pcs[pc]
		sf := StackFrame{
			PC:   f.pc,
			Func: s.table.strings.mustGet(f.funcID),
			File: s.table.strings.mustGet(f.fileID),
			Line: f.line,
		}
		if !yield(sf) {
			return false
		}

	retpc           uintptr
	deferBitsOffset uintptr
	slotsOffset     uintptr
}

// ancestorInfo records details of where a goroutine was started.
type ancestorInfo struct {
	pcs  []uintptr // pcs from the stack of this goroutine
	goid uint64    // goroutine id of this goroutine; original goroutine possibly dead
	gopc uintptr   // pc of go statement that created this goroutine
}

		throw("unknown command")
	}
}

// raceSymbolizeCode reads ctx.pc and populates the rest of *ctx with
// information about the code at that pc.
//
// The race detector has already subtracted 1 from pcs, so they point to the last
// byte of call instructions (including calls to runtime.racewrite and friends).
//
// If the incoming pc is part of an inlined function, *ctx is populated

	if n == 0 {
		panic("testing: zero callers found")
	}
	return pcToName(pc[0])
}

func pcToName(pc uintptr) string {
	pcs := []uintptr{pc}
	frames := runtime.CallersFrames(pcs)
	frame, _ := frames.Next()
	return frame.Function
}

// Parallel signals that this test is to be run in parallel with (and only with)

// in state.f, using the information about block state in blockLocs.
// The returned location lists are not fully complete. They are in
// terms of SSA values rather than PCs, and have no base address/end
// entries. They will be finished by PutLocationList.
func (state *debugState) buildLocationLists(blockLocs []*BlockDebug) {
	// Run through the function in program text order, building up location

	// plugin's functab is corrupted. By unexporting them, these
	// become static references, which are resolved to the
	// plugin's text.
	//
	// It would be better to omit the runtime from plugins. (Using
	// relative PCs in the functab instead of relocations would
	// also address this.)
	//
	// See issue #18190.
	if ctxt.BuildMode == BuildModePlugin {

		n = debug.tracebackancestors
	}
	ancestors := make([]ancestorInfo, n)
	copy(ancestors[1:], callerAncestors)

	var pcs [tracebackInnerFrames]uintptr
	npcs := gcallers(callergp, 0, pcs[:])
	ipcs := make([]uintptr, npcs)
	copy(ipcs, pcs[:])
	ancestors[0] = ancestorInfo{
		pcs:  ipcs,
		goid: callergp.goid,
		gopc: callergp.gopc,
	}

	ancestorsp := new([]ancestorInfo)
	*ancestorsp = ancestors

			//
			// This is to avoid confusing pctospadj, which sums
			// Spadj from function entry to each PC, and shouldn't
			// count adjustments from earlier epilogues, since they
			// won't affect later PCs.
			p.Spadj = int32(stacksize)

		case AADDI:
			// Refine Spadjs account for adjustment via ADDI instruction.
			if p.To.Type == obj.TYPE_REG && p.To.Reg == REG_SP && p.From.Type == obj.TYPE_CONST {