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  1. JDK
  2. JDK-8294197

Zero: JVM_handle_linux_signal should not assume deopt NOPs

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Details

    • Bug
    • Resolution: Fixed
    • P4
    • 20
    • 19, 20
    • hotspot
    • b17

    Description

      This is a simple regression from Loom added code. In `JVM_handle_linux_signal` there is a new block that handles deopt NOPs. Zero does not have them, and so it currently encounters `ShouldNotReachHere()` when entering the block and doing either `os::Posix::ucontext_get_pc(uc)` or `NativeDeoptInstruction::is_deopt_at(pc)`.

      This block should not be entered with Zero at all.

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              shade Aleksey Shipilev
              shade Aleksey Shipilev
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                Updated:
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