[Webkit-unassigned] [Bug 66724] New: Sampling counter support is in the bytecode directory

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=66724

           Summary: Sampling counter support is in the bytecode directory
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fpizlo at apple.com


Sampling counters are a useful way of doing light-weight profiling in JSC.  For historical reasons, the SamplingCounter classes are in bytecode/SamplingTool.h, even though the SamplingCounter classes have nothing to do with bytecode.  Furthermore, the SamplingTool.h file includes quite a large chunk of the runtime, so attempting to include it in core runtime headers would lead to potentially bad circularity.

This can be solved by moving SamplingCounter into its own header, which lives in runtime and has few dependencies.

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