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(0.20.0) AArch64: Make unresolved virtual call thread safe #9249

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Akira1Saitoh
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This commit makes unresolved virtual call thread safe for aarch64.

  • Change instruction sequence of unresolved virtual call
  • Add lock word to Unresolved Virtual Call Snippet
  • Introduce locking in PicBuilder.spp using the lock word

Master PR: #9237

Co-authored-by: KONNO Kazuhiro konno@jp.ibm.com

Signed-off-by: Akira Saitoh saiaki@jp.ibm.com

This commit makes unresolved virtual call thread safe for aarch64.
- Change instruction sequence of unresolved virtual call
- Add lock word to Unresolved Virtual Call Snippet
- Introduce locking in PicBuilder.spp using the lock word

Co-authored-by: KONNO Kazuhiro konno@jp.ibm.com

Signed-off-by: Akira Saitoh <saiaki@jp.ibm.com>
@Akira1Saitoh
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@knn-k @0xdaryl

@Akira1Saitoh Akira1Saitoh changed the title WIP: (0.20.0) AArch64: Make unresolved virtual call thread safe (0.20.0) AArch64: Make unresolved virtual call thread safe Apr 15, 2020
@pshipton pshipton self-assigned this Apr 15, 2020
@pshipton pshipton merged commit 05fa2d3 into eclipse-openj9:v0.20.0-release Apr 15, 2020
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3 participants