P3
It is a time to implement nmethod entry barriers for ARM32. It have already been implemented in other ports. This becomes inevitable with the landing of Loom and JDK-8290025 "Remove the Sweeper" which require nmethod entry barriers.
Nmethod entry barriers are needed for G1 concurrent marking to keep alive weak nmethod oop constants (see linkedJDK-8288970). So it is a defect if they are missing.
Nmethod entry barriers are needed for G1 concurrent marking to keep alive weak nmethod oop constants (see linked
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JDK-8297487 G1 Remark: no need to keep alive oop constants of nmethods on stack
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- Closed
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- relates to
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JDK-8288970 G1 does not keep weak nmethod oops alive
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- Closed
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- Resolved
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