var stack []*loadPkg
	for p := pkg; p != nil; p = p.stack {
		stack = append(stack, p)
	}

	var buf strings.Builder
	for i := len(stack) - 1; i >= 0; i-- {
		p := stack[i]
		fmt.Fprint(&buf, p.path)
		if p.testOf != nil {
			fmt.Fprint(&buf, ".test")
		}
		if i > 0 {
			if stack[i-1].testOf == p {
				fmt.Fprint(&buf, " tested by\n\t")
			} else {
				fmt.Fprint(&buf, " imports\n\t")

			continue
		}

		// There are four cases to handle in translating each
		// argument:
		// 1. Stack -> stack translation.
		// 2. Stack -> registers translation.
		// 3. Registers -> stack translation.
		// 4. Registers -> registers translation.

		// If the value ABI passes the value on the stack,
		// then the method ABI does too, because it has strictly
		// fewer arguments. Simply copy between the two.

}

func (r *Config) HasCounterPrefix(program, prefix string) bool {
	return r.pgcounterprefix[pgkey{program, prefix}]
}

func (r *Config) HasStack(program, stack string) bool {
	return r.pgstack[pgkey{program, stack}]
}

func (r *Config) Rate(program, name string) float64 {
	return r.rate[pgkey{program, name}]
}

func set(slice []string) map[string]bool {

	/gc/scan/heap:bytes
		The total amount of heap space that is scannable.

	/gc/scan/stack:bytes
		The number of bytes of stack that were scanned last GC cycle.

	/gc/scan/total:bytes
		The total amount space that is scannable. Sum of all metrics in
		/gc/scan.

	/gc/stack/starting-size:bytes
		The stack size of new goroutines.

	/godebug/non-default-behavior/execerrdot:events

var errClosed = errors.New("i/o operation on closed connection")

// ServerConn is an artifact of Go's early HTTP implementation.
// It is low-level, old, and unused by Go's current HTTP stack.
// We should have deleted it before Go 1.
//
// Deprecated: Use the Server in package [net/http] instead.
type ServerConn struct {
	mu              sync.Mutex // read-write protects the following fields

	phaseName := "init"
	defer func() {
		if phaseName != "" {
			err := recover()
			stack := make([]byte, 16384)
			n := runtime.Stack(stack, false)
			stack = stack[:n]
			if f.HTMLWriter != nil {
				f.HTMLWriter.flushPhases()
			}
			f.Fatalf("panic during %s while compiling %s:\n\n%v\n\n%s\n", phaseName, f.Name, err, stack)
		}
	}()

	// Run all the passes
	if f.Log() {
		printFunc(f)
	}

		return "reflect: call of " + e.Method + " on zero Value"
	}
	return "reflect: call of " + e.Method + " on " + e.Kind.String() + " Value"
}

// methodName returns the name of the calling method,
// assumed to be two stack frames above.
func methodName() string {
	pc, _, _, _ := runtime.Caller(2)
	f := runtime.FuncForPC(pc)
	if f == nil {
		return "unknown method"
	}
	return f.Name()
}

}

func TestStackOverflow(t *testing.T) {
	output := runTestProg(t, "testprog", "StackOverflow")
	want := []string{
		"runtime: goroutine stack exceeds 1474560-byte limit\n",
		"fatal error: stack overflow",
		// information about the current SP and stack bounds
		"runtime: sp=",
		"stack=[",
	}
	if !strings.HasPrefix(output, want[0]) {
		t.Errorf("output does not start with %q", want[0])
	}
	for _, s := range want[1:] {

	{11, "SIGSEGV", "segmentation fault"},
	{12, "SIGUSR2", "user defined signal 2"},
	{13, "SIGPIPE", "broken pipe"},
	{14, "SIGALRM", "alarm clock"},
	{15, "SIGTERM", "terminated"},
	{16, "SIGSTKFLT", "stack fault"},
	{17, "SIGCHLD", "child exited"},
	{18, "SIGCONT", "continued"},
	{19, "SIGSTOP", "stopped (signal)"},
	{20, "SIGTSTP", "stopped"},
	{21, "SIGTTIN", "stopped (tty input)"},

func (p *Prog) InnermostFilename() string {
	// TODO For now, this is only used for debugging output, and if we need more/better information, it might change.
	// An example of what we might want to see is the full stack of positions for inlined code, so we get some visibility into what is recorded there.
	pos := p.Ctxt.InnermostPos(p.Pos)
	if !pos.IsKnown() {
		return "<unknown file name>"
	}
	return pos.Filename()
}