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  1. JDK
  2. JDK-8270527

[lworld] markWord::print_on() needs to reflect the additional Valhalla mark word bits

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    Details

    • Type: Enhancement
    • Status: Open
    • Priority: P4
    • Resolution: Unresolved
    • Affects Version/s: repo-valhalla
    • Fix Version/s: repo-valhalla
    • Component/s: hotspot
    • Labels:

      Description

      markWord::print_on() needs to reflect the additional Valhalla mark word bits, see src/hotspot/share/oops/markWord.hpp:

      // Revised Bit-format of an object header (most significant first, big endian layout below):
      //
      // 32 bits:
      // --------
      // hash:24 ------------>| larval:1 age:4 inline_type:1 lock:2
      //
      // 64 bits:
      // --------
      // unused:1 | <-- hash:31 -->| unused:22 larval:1 age:4 flat_array:1 null_free_array:1 inline_type:1 lock:2

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            Assignee:
            Unassigned Unassigned
            Reporter:
            dsimms David Simms
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              Created:
              Updated: