• bjaideep's avatar
    PPC/s390: [builtins] Add receiver to builtin exit frames · 96ebd756
    bjaideep authored
    Port f59a2335
    
    Original commit message:
    
        Stack trace generation requires access to the receiver; and while the
        receiver is already on the stack, we cannot determine its position
        during stack trace generation (it's stored in argv[0], and argc is only
        stored in a callee-saved register).
    
        This patch grants access to the receiver by pushing argc onto builtin
        exit frames as an extra argument. Compared to simply pushing the
        receiver, this requires an additional dereference during stack trace
        generation, but one fewer during builtin calls.
    
    R=jgruber@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
    
    BUG=v8:4815
    LOG=N
    
    Review-Url: https://codereview.chromium.org/2129643002
    Cr-Commit-Position: refs/heads/master@{#37563}
    96ebd756
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