[Webkit-unassigned] [Bug 38280] New: Fix spanning branch instruction on Cortex-A8 with Thumb-2 JIT

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=38280

           Summary: Fix spanning branch instruction on Cortex-A8 with
                    Thumb-2 JIT
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: loki at webkit.org


Cortex-A8 errata says the following:
If the 32-bit Thumb-2 branch instruction spans two 4KiB regions and the target
of the branch falls within the first region it is possible for the processor to
incorrectly determine the branch instruction, and it is also possible in some
cases for the processor to enter a deadlock state.

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