buf := make([]byte, 10<<10)
			n := runtime.Stack(buf, true)
			t.Fatalf("timed out after %v waiting for <-ctx.Done(); stacks:\n%s", d, buf[:n])
		}
	}
	// Wait for all the cancel functions to return.
	done := make(chan struct{})
	go func() {
		wg.Wait()
		close(done)
	}()
	select {
	case <-done:
	case <-stuck:
		buf := make([]byte, 10<<10)
		n := runtime.Stack(buf, true)

func runningGoroutines() []string {
	var gss []string
	b := make([]byte, 2<<20)
	b = b[:runtime.Stack(b, true)]
	for _, s := range strings.Split(string(b), "\n\n") {
		_, stack, _ := strings.Cut(s, "\n")
		stack = strings.TrimSpace(stack)
		if !strings.Contains(stack, "created by net") {
			continue
		}
		gss = append(gss, stack)
	}
	slices.Sort(gss)
	return gss
}

func printInflightSockets() {

	EvGoSleep           event.Type = 19 // goroutine calls Sleep [timestamp, stack]
	EvGoBlock           event.Type = 20 // goroutine blocks [timestamp, stack]
	EvGoUnblock         event.Type = 21 // goroutine is unblocked [timestamp, goroutine id, seq, stack]
	EvGoBlockSend       event.Type = 22 // goroutine blocks on chan send [timestamp, stack]
	EvGoBlockRecv       event.Type = 23 // goroutine blocks on chan recv [timestamp, stack]

//go:build aix

package runtime

import (
	"internal/abi"
	"internal/runtime/atomic"
	"unsafe"
)

const (
	threadStackSize = 0x100000 // size of a thread stack allocated by OS
)

// funcDescriptor is a structure representing a function descriptor
// A variable with this type is always created in assembler
type funcDescriptor struct {
	fn         uintptr
	toc        uintptr

	stw := stopTheWorld(stwWriteHeapDump)

	// Keep m on this G's stack instead of the system stack.
	// Both readmemstats_m and writeheapdump_m have pretty large
	// peak stack depths and we risk blowing the system stack.
	// This is safe because the world is stopped, so we don't
	// need to worry about anyone shrinking and therefore moving
	// our stack.
	var m MemStats
	systemstack(func() {

			}
		}
	}
	return replaced
}

type ordermarker int

// markTemp returns the top of the temporary variable stack.
func (o *orderState) markTemp() ordermarker {
	return ordermarker(len(o.temp))
}

// popTemp pops temporaries off the stack until reaching the mark,
// which must have been returned by markTemp.
func (o *orderState) popTemp(mark ordermarker) {
	for _, n := range o.temp[mark:] {

// package (assembler).
func ObjRegForAbiReg(r abi.RegIndex, c *Config) int16 {
	m := archRegForAbiReg(r, c)
	return c.registers[m].objNum
}

// ArgWidth returns the amount of stack needed for all the inputs
// and outputs of a function or method, including ABI-defined parameter
// slots and ABI-defined spill slots for register-resident parameters.
//

// finish the message.
//
// dlog can be used from highly-constrained corners of the runtime: it
// is safe to use in the signal handler, from within the write
// barrier, from within the stack implementation, and in places that
// must be recursively nosplit.
//
// This will be compiled away if built without the debuglog build tag.
// However, argument construction may not be. If any of the arguments

func G0StackOverflow() {
	systemstack(func() {
		g0 := getg()
		sp := getcallersp()
		// The stack bounds for g0 stack is not always precise.
		// Use an artificially small stack, to trigger a stack overflow
		// without actually run out of the system stack (which may seg fault).
		g0.stack.lo = sp - 4096 - stackSystem
		g0.stackguard0 = g0.stack.lo + stackGuard
		g0.stackguard1 = g0.stackguard0

		stackOverflow(nil)
	})
}

	SampleIndex         string  `json:"-"`
	DivideBy            float64 `json:"-"`
	Normalize           bool    `json:"normalize,omitempty"`
	Sort                string  `json:"sort,omitempty"`

	// Label pseudo stack frame generation options
	TagRoot string `json:"tagroot,omitempty"`
	TagLeaf string `json:"tagleaf,omitempty"`

	// Filtering options
	DropNegative bool    `json:"drop_negative,omitempty"`