[Webkit-unassigned] [Bug 12841] New: Crash on ARM due to mis-alignment

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=12841

           Summary: Crash on ARM due to mis-alignment
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: public at oscarc.net
                CC: kkowalczyk at gmail.com


ARM has stricter alignment rules than many other architectures. In this case,
pageheap_memory is being declared as a char array, so it is not aligned by the
compiler. It is later used as TCMalloc_PageHeap*, which does require alignment.

When building under ARM, this patch tells the compiler to stricly align
pageheap_memory so that pageheap_memory can be used as TCMalloc_PageHeap*. It
does not affect other platforms.


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