JDK-8224853 : CDS address sanitizer errors
- Type: Bug
- Component: hotspot
- Sub-Component: runtime
- Affected Version: 11,13
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- OS: linux
- CPU: aarch64
- Submitted: 2019-05-28
- Updated: 2021-07-05
- Resolved: 2019-06-06
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| JDK 11 | JDK 13 | JDK 14 |
|---|---|---|
| 11.0.13Fixed | 13 b25Fixed  |
14Fixed |
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Description
Building with --enable-asan on AArch64 reports an error in java_lang_Class::serialize_offsets (see attachment). The value `offsets_computed' is a bool which we cast to a u4* and pass to WriteClosure::do_u4. But sizeof(bool) is implementation defined and on AArch64 (and x86_64 also) it is only one byte. Currently this is harmless because offsets_computed is followed by three bytes of padding before an int, but if someone added another bool global variable immediately after offsets_computed we would get some very obscure bugs.
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