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    • ssanfilippo's avatar
      Emit unwinding information for TurboFan code. · cecded1c
      ssanfilippo authored
      This commit introduces support for writing unwinding tables in the
      .eh_frame format, to be inserted in the jitdump read by Linux perf and
      emitted with FLAG_perf_prof and FLAG_perf_prof_unwinding_info enabled.
      
      x64 is fully implemented and tested, arm and arm64 are untested and the
      unwinding information needs to be expanded, but the mechanism is ready.
      
      BUG=v8:4899
      LOG=N
      
      Review-Url: https://codereview.chromium.org/2026313002
      Cr-Commit-Position: refs/heads/master@{#37799}
      cecded1c