go func() {
			runtime.LockOSThread()
			for {
				select {
				case <-done:
					return
				default:
					runtime.Gosched()
				}
			}
		}()

		runtime.GC()
		// Trigger GC from malloc.
		n := 512
		for i := 0; i < n; i++ {
			_ = make([]byte, 1<<20)
		}

		// Create a bunch of busy goroutines to load all Ps.
		for p := 0; p < 10; p++ {
			wg.Add(1)
			go func() {

  int32_t bytes = data_.size()                            // size of content
                  + sizeof(int32_t) * (num_strings + 2);  // size of header
  // Caller will take ownership of buffer.
  *buffer = reinterpret_cast<char*>(malloc(bytes));

  if (*buffer == nullptr) {
    return -1;
  }

  // Set num of string
  //
  // NOTE: The string buffer is accessed here as if it's native endian (instead

  }

  char file_name[100];
  time_t t = time(NULL);
  snprintf(file_name, sizeof(file_name), "test-%d-%ld.txt", getpid(), t);

  size_t length = 2 + strlen(path) + strlen(file_name);
  char* full_path = malloc(length);
  snprintf(full_path, length, "%s/%s", path, file_name);

  TF_WritableFileHandle* h;
  TF_Status* status = TF_NewStatus();
  TF_NewWritableFile(full_path, &h, status);
  if (TF_GetCode(status) != TF_OK) {

// they might have been locked at the time of the fork. This means
// no rescheduling, no malloc calls, and no new stack segments.
//
// We call hand-crafted syscalls, implemented in
// ../runtime/syscall_solaris.go, rather than generated libc wrappers
// because we need to avoid lazy-loading the functions (might malloc,
// split the stack, or acquire mutexes). We can't call RawSyscall

	if testing.Short() {
		t.Skip("skipping malloc count in short mode")
	}
	if runtime.GOMAXPROCS(0) > 1 {
		t.Log("skipping AllocsPerRun checks; GOMAXPROCS>1")
		return
	}

	for _, test := range cleantests {
		allocs := testing.AllocsPerRun(100, func() { Clean(test.result) })
		if allocs > 0 {
			t.Errorf("Clean(%q): %v allocs, want zero", test.result, allocs)
		}
	}
}

type SplitTest struct {

	// nothing to run, just make sure this compiles.
	_ = C.X
}

// issue 6390

func test6390(t *testing.T) {
	p1 := C.malloc(1024)
	if p1 == nil {
		t.Fatalf("C.malloc(1024) returned nil")
	}
	p2 := C.malloc(0)
	if p2 == nil {
		t.Fatalf("C.malloc(0) returned nil")
	}
	C.free(p1)
	C.free(p2)
}

func test6472() {
	// nothing to run, just make sure this compiles

	{"kern.hostid", []_C_int{1, 11}},
	{"kern.hostname", []_C_int{1, 10}},
	{"kern.intrcnt.nintrcnt", []_C_int{1, 63, 1}},
	{"kern.job_control", []_C_int{1, 19}},
	{"kern.malloc.buckets", []_C_int{1, 39, 1}},
	{"kern.malloc.kmemnames", []_C_int{1, 39, 3}},
	{"kern.maxclusters", []_C_int{1, 67}},
	{"kern.maxfiles", []_C_int{1, 7}},
	{"kern.maxlocksperuid", []_C_int{1, 70}},
	{"kern.maxpartitions", []_C_int{1, 23}},

	{"kern.hostid", []_C_int{1, 11}},
	{"kern.hostname", []_C_int{1, 10}},
	{"kern.intrcnt.nintrcnt", []_C_int{1, 63, 1}},
	{"kern.job_control", []_C_int{1, 19}},
	{"kern.malloc.buckets", []_C_int{1, 39, 1}},
	{"kern.malloc.kmemnames", []_C_int{1, 39, 3}},
	{"kern.maxclusters", []_C_int{1, 67}},
	{"kern.maxfiles", []_C_int{1, 7}},
	{"kern.maxlocksperuid", []_C_int{1, 70}},
	{"kern.maxpartitions", []_C_int{1, 23}},

	{"kern.hostid", []_C_int{1, 11}},
	{"kern.hostname", []_C_int{1, 10}},
	{"kern.intrcnt.nintrcnt", []_C_int{1, 63, 1}},
	{"kern.job_control", []_C_int{1, 19}},
	{"kern.malloc.buckets", []_C_int{1, 39, 1}},
	{"kern.malloc.kmemnames", []_C_int{1, 39, 3}},
	{"kern.maxclusters", []_C_int{1, 67}},
	{"kern.maxfiles", []_C_int{1, 7}},
	{"kern.maxlocksperuid", []_C_int{1, 70}},
	{"kern.maxpartitions", []_C_int{1, 23}},

	{"kern.hostid", []_C_int{1, 11}},
	{"kern.hostname", []_C_int{1, 10}},
	{"kern.intrcnt.nintrcnt", []_C_int{1, 63, 1}},
	{"kern.job_control", []_C_int{1, 19}},
	{"kern.malloc.buckets", []_C_int{1, 39, 1}},
	{"kern.malloc.kmemnames", []_C_int{1, 39, 3}},
	{"kern.maxclusters", []_C_int{1, 67}},
	{"kern.maxfiles", []_C_int{1, 7}},
	{"kern.maxlocksperuid", []_C_int{1, 70}},
	{"kern.maxpartitions", []_C_int{1, 23}},