diff options
Diffstat (limited to 'src/runtime/tagptr.go')
| -rw-r--r-- | src/runtime/tagptr.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/runtime/tagptr.go b/src/runtime/tagptr.go new file mode 100644 index 0000000..0e17a15 --- /dev/null +++ b/src/runtime/tagptr.go @@ -0,0 +1,14 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package runtime + +// taggedPointer is a pointer with a numeric tag. +// The size of the numeric tag is GOARCH-dependent, +// currently at least 10 bits. +// This should only be used with pointers allocated outside the Go heap. +type taggedPointer uint64 + +// minTagBits is the minimum number of tag bits that we expect. +const minTagBits = 10 |