On Tue, 7 Feb 2023 15:32:11 GMT, Justin King <jck...@openjdk.org> wrote:
>> Adds initial LSan (LeakSanitizer) support to Hotspot. This setup has been >> used to identify multiple leaks so far. It can run most of the test suite >> except those that also fail with ASan, which is being looked at separately. >> It is especially useful when combined with ASan, as LSan can use poisoning >> information to determine what memory to scan or not to scan, making leak >> detection more accurate and faster. >> >> **Suppressing:** >> Currently the suppression list is only used to suppress JLI leaks that are >> known, the rest are done in code. Suppressing needs to identify the source >> of thet leak. Due to Hotspot's code organization, we would need to suppress >> `os::malloc` and friends, which would suppress everything. Suppressing in >> code has the added benefit of being explicit and surviving refactors if >> methods change. >> >> **Caveats:** >> - By default ASan enables LSan, however we explicitly disable it unless >> `--enable-lsan` is given. It is useful to be able to use ASan without LSan. >> Using LSan by itself is less likely to be useful and will probably not work, >> but its still possible currently. > > Justin King has updated the pull request with a new target base due to a > merge or a rebase. The pull request now contains ten commits: > > - Merge branch 'master' into lsan > - Fix grammatical error > > Signed-off-by: Justin King <jck...@google.com> > - Update based on review and remove restriction on compressed oops and class > pointers > > Signed-off-by: Justin King <jck...@google.com> > - Support CDS > > Signed-off-by: Justin King <jck...@google.com> > - Merge remote-tracking branch 'upstream/master' into lsan > - Merge remote-tracking branch 'upstream/master' into lsan > - Merge remote-tracking branch 'upstream/master' into lsan > - Implement initial LSAN support v2 > > Signed-off-by: Justin King <jck...@google.com> > - Implement initial LSAN support Reverted the change to the JDK test leak, that can be done in another PR as mentioned. ------------- PR: https://git.openjdk.org/jdk/pull/12229
