Re: LuaJIT on PowerPC Macs?
- From: Mike Pall <mike-1302@xxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Tue, 12 Feb 2013 09:58:57 +0100
Anders Bergh wrote:
> 1. OS X comes with gcc 4.0.1 (default) and 4.2.1, but 4.3+ is required by
> LuaJIT for ppc. I commented out the #error.
Ok, the requirement could be relaxed, since the code has recently
gotten workarounds for the missing intrinsics. But I'm not sure
I want to deal with issues that might later turn out to be bugs in
an unmaintained GCC version.
> 2. Calling FFI C functions seems to crash:
That's probably caused by a mismatch of the calling conventions,
particularly the stack frame setup (and not just for the FFI).
I guess one would have to find out the exact differences between
the Linux/PPC and the OSX/PPC calling conventions (AFAIR the OSX
docs are a bit vague in this regard).
> I understand LuaJIT on PowerPC OS X may not be a priority, I just wanted to
> let you know that it almost works.
Well, it's a dead platform. But I'll accept user-contributed fixes
(if they are simple to merge).
--Mike
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