[Webkit-unassigned] [Bug 124409] [Win] JavaScript crashes on 64-bit with JIT enabled.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Nov 15 15:49:25 PST 2013


--- Comment #14 from peavo at outlook.com  2013-11-15 15:48:03 PST ---
(In reply to comment #13)
> (In reply to comment #12)
> > (In reply to comment #10)
> > > Actually, the value for rbx is the same as the PC for the caller of getCallLinkInfoReturnLocation() in the stack trace.
> > 
> > I found the 5. parameter (StringImpl *) on the stack, it's located 20h off from where we actually read.
> Makes sense.  Doesn't appear that we accounted for the first 4 args before poking arg5.  The poke for arg5 is: 
> 0000000005463DFA  mov         qword ptr [rsp],r11
> That should be 0000000005463DFA  mov         qword ptr [rsp + 0x20],r11
> I think the C call helper for 5 args for X86 win needs to account for the first 4 args.

Ah, I see... Thanks, will update the patch :)

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