[Webkit-unassigned] [Bug 99153] New: x32 support of JavaScriptCore

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=99153

           Summary: x32 support of JavaScriptCore
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: yuqiang.xian at intel.com
                CC: barraclough at apple.com, fpizlo at apple.com


This is the meta bug to track the x32 support of JavaScriptCore.

There's a new x32 ABI - a 32-bit psABI for x86-64 with 32-bit pointer size. It tries to leverage the advantage of more registers and IP relative addressing from x64 and the advantage of smaller memory footprint from IA32. More details of the x32 ABI can be found here: https://sites.google.com/site/x32abi/.

The Linux kernel supports x32 since 3.4, and the commonly used development tools and libraries are getting in the x32 support. Also more details about current status is available in the above link.

We also want JavaScriptCore to support x32.

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