w.tmpHash64 = contentHash64(s)
	w.Bytes(w.tmpHash64[:])
}

func (w *writer) Hash(s *LSym) {
	if !s.ContentAddressable() {
		panic("Hash of non-content-addressable symbol")
	}
	w.tmpHash = w.contentHash(s)
	w.Bytes(w.tmpHash[:])
}

// contentHashSection returns a mnemonic for s's section.
// The goal is to prevent content-addressability from moving symbols between sections.

		// if there was an error writing, syncing, or closing, delete the temporary file and return the error
		if retErr != nil {
			if err := fs.Remove(tmpPath); err != nil {
				retErr = fmt.Errorf("attempted to remove temporary file %q after error %v, but failed due to error: %v", tmpPath, retErr, err)
			}
			tmpPath = ""
		}
	}()

	// Name() will be an absolute path when using utilfs.DefaultFS, because os.CreateTemp passes

	top := tophash(hash)

	var insertb *bmap
	var inserti uintptr
	var insertk unsafe.Pointer

bucketloop:
	for {
		for i := uintptr(0); i < abi.MapBucketCount; i++ {
			if b.tophash[i] != top {
				if isEmpty(b.tophash[i]) && insertb == nil {
					insertb = b
					inserti = i
				}
				if b.tophash[i] == emptyRest {
					break bucketloop
				}

			} else {
				memclrNoHeapPointers(e, t.Elem.Size_)
			}
			b.tophash[i] = emptyOne
			// If the bucket now ends in a bunch of emptyOne states,
			// change those to emptyRest states.
			if i == abi.MapBucketCount-1 {
				if b.overflow(t) != nil && b.overflow(t).tophash[0] != emptyRest {
					goto notLast
				}
			} else {
				if b.tophash[i+1] != emptyRest {
					goto notLast
				}
			}
			for {

			} else {
				memclrNoHeapPointers(e, t.Elem.Size_)
			}
			b.tophash[i] = emptyOne
			// If the bucket now ends in a bunch of emptyOne states,
			// change those to emptyRest states.
			if i == abi.MapBucketCount-1 {
				if b.overflow(t) != nil && b.overflow(t).tophash[0] != emptyRest {
					goto notLast
				}
			} else {
				if b.tophash[i+1] != emptyRest {
					goto notLast
				}
			}
			for {

func TestIsValidUmaskVol(t *testing.T) {
	tmpPath := t.TempDir()
	testCases := []struct {
		volName       string
		expectedUmask int
	}{
		{"is-this-valid", getUmask()},
	}
	testCase := testCases[0]

	// Initialize a new xlStorage layer.
	disk, err := newLocalXLStorage(tmpPath)
	if err != nil {
		t.Fatalf("Initializing xlStorage failed with %s.", err)
	}

				// bit of tophash to decide which way NaNs go.
				// NOTE: this case is why we need two evacuate tophash
				// values, evacuatedX and evacuatedY, that differ in
				// their low bit.
				if checkBucket>>(it.B-1) != uintptr(b.tophash[offi]&1) {
					continue
				}
			}
		}
		if (b.tophash[offi] != evacuatedX && b.tophash[offi] != evacuatedY) ||

				}
			}
		}

		// Clean up the temp file on error.
		if retErr != nil && tmpPath != "" {
			if err := removePath(fs, tmpPath); err != nil {
				retErr = fmt.Errorf("failed to remove the temporary file (%q) after error %v; remove error: %v", tmpPath, retErr, err)
			}
		}
	}()

	// Write data.
	if _, err := tmpFile.Write(data); err != nil {
		return err
	}

func TestArgumentsPositions(t *testing.T) {
	testenv.MustHaveCGO(t)
	testenv.MustHaveExec(t)

	testdata, err := filepath.Abs("testdata")
	if err != nil {
		t.Fatal(err)
	}

	tmpPath := t.TempDir()

	dir := filepath.Join(tmpPath, "src", "testpositions")
	if err := os.MkdirAll(dir, 0755); err != nil {
		t.Fatal(err)
	}

	cmd := exec.Command("go", "tool", "cgo",
		"-srcdir", testdata,
		"-objdir", dir,

	testbase := filepath.Join("testdata", base) + "." + tag
	tmpbase := filepath.Join("testdata", "test-"+base+"."+tag)

	// Use a temporary directory unless -f is specified
	if !*force {
		tmpdir := t.TempDir()
		tmpbase = filepath.Join(tmpdir, "test-"+base+"."+tag)
		if *verbose {
			fmt.Printf("Tempdir is %s\n", tmpdir)
		}
	}
	exe := tmpbase

	runGoArgs := []string{"build", "-o", exe, "-gcflags=all=" + gcflags}