teminated = true;
                } catch (final Exception e) {
                    if (logger.isInfoEnabled()) {
                        logger.info("Could not kill the subprocess.", e);
                    }
                }
            }
        }

        /**
         * @param finished
         *            The finished to set.
         */

	cmd = testenv.CleanCmdEnv(cmd)
	cmd.Env = append(cmd.Env, "GO_WANT_HELPER_PROCESS=1")

	out, err := cmd.CombinedOutput()
	if len(out) > 0 {
		t.Logf("%s", out)
	}
	if err != nil {
		t.Fatalf("subprocess failed: %v", err)
	}
	s := string(bytes.TrimSpace(out))
	v, err := strconv.ParseUint(s, 10, 64)
	if err != nil {
		t.Fatalf("could not parse %q as number: %v", s, v)
	}

	if v != uint64(orig.Cur) {

			os.Exit(2)
		}
		os.Exit(0)
	}

	testenv.MustHaveExec(t)
	exe, err := os.Executable()
	if err != nil {
		t.Fatal(err)
	}

	d := t.TempDir()
	t.Cleanup(func() {
		// If the subprocess fails to unshare the parent directory, force-unmount it
		// so that the test can clean it up.
		if _, err := os.Stat(d); err == nil {
			syscall.Unmount(d, syscall.MNT_FORCE)
		}
	})

		// Don't start the child.
		return result
	}

	var reportCrashes = config.ReportCrashes && crashmonitor.Supported()

	switch v := os.Getenv(telemetryChildVar); v {
	case "":
		// The subprocess started by parent has GO_TELEMETRY_CHILD=1.
		childShouldUpload := config.Upload && acquireUploadToken()
		if reportCrashes || childShouldUpload {
			parent(reportCrashes, childShouldUpload, result)
		}
	case "1":

					return out.String(), "", nil
				}
			}
			return wait, nil
		})
}

// Exec runs an arbitrary executable as a subprocess.
//
// When the Script's context is canceled, Exec sends the interrupt signal, then
// waits for up to the given delay for the subprocess to flush output before
// terminating it with os.Kill.
func Exec(cancel func(*exec.Cmd) error, waitDelay time.Duration) Cmd {
	return Command(

	ctx, cancel := context.WithCancel(context.Background())

	// This test will spawn nHangs subprocesses that hang reading from stdin,
	// and nExits subprocesses that exit immediately.
	//
	// When issue #61080 was present, a long-lived "hang" subprocess would
	// occasionally inherit the fork/exec status pipe from an "exit" subprocess,
	// causing the parent process (which expects to see an EOF on that pipe almost

an end-of-line comment. Additional variables named ':' and '/' are expanded
within script arguments (expanding to the value of os.PathListSeparator and
os.PathSeparator respectively) but are not inherited in subprocess environments.

Adding single quotes around text keeps spaces in that text from being treated
as word separators and also disables environment variable expansion. Inside a

			} else if !ws.Signaled() || ws.Signal() != syscall.SIGINT {
				t.Errorf("iteration %d: got exit status %v; expected SIGINT", i, ee)
			}
		}
	}
}

// atomicStopTestProgram is run in a subprocess by TestAtomicStop.
// It tries to trigger a signal delivery race. This function should
// either catch a signal or die from it.
func atomicStopTestProgram(t *testing.T) {
	// This test won't work if SIGINT is ignored here.

		// means that if we start walking up the tree, we should eventually find
		// GOROOT/src/go.mod, and we can report the parent directory of that.
		//
		// Notably, this works even if we can't run 'go env GOROOT' as a
		// subprocess.

		cwd, err := os.Getwd()
		if err != nil {
			gorootErr = fmt.Errorf("finding GOROOT: %w", err)
			return
		}

		dir := cwd
		for {
			parent := filepath.Dir(dir)
			if parent == dir {

	}

	// Disable any ssh connection pooling by Git.
	// If a Git subprocess forks a child into the background to cache a new connection,
	// that child keeps stdout/stderr open. After the Git subprocess exits,
	// os/exec expects to be able to read from the stdout/stderr pipe
	// until EOF to get all the data that the Git subprocess wrote before exiting.
	// The EOF doesn't come until the child exits too, because the child