[jira] Assigned: (HARMONY-5822) [drlvm][vmcore] class unloading does not clean JIT recompilation callbacks

["Alexey Varlamov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-5822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Varlamov reassigned HARMONY-5822:
----------------------------------------

    Assignee: Alexey Varlamov

> [drlvm][vmcore] class unloading does not clean JIT recompilation callbacks
> --------------------------------------------------------------------------
>
>                 Key: HARMONY-5822
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5822
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>    Affects Versions: 5.0M6
>            Reporter: Alexey Varlamov
>            Assignee: Alexey Varlamov
>         Attachments: HARMONY-5822.patch
>
>
> There is a facility in DRLVM for notifying JIT of method recompilation, see vm_register_jit_recompiled_method_callback(JIT_Handle jit, Method_Handle method, void *callback_data).
> Jitrino uses this feature to patch direct calls to methods (within other compiled methods) upon recompilation of a callee method.
> However, in case then a caller method is unloaded, corresponding callbacks are not removed and lead to SIGSEGV if a callee method is recompiled.

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