[Vm-dev] Pharo FFI on aarch64/arm64

[ken.dickey at whidbey.com]

Greetings,

I have been making small progress in getting Pharo's FFI unit tests to 
pass on arm64.

Built from recent
   OpenSmalltalk opensmalltalk-vm build.linux64ARMv8/pharo.stack.spur

I get a pharo vm whose UI is pretty slow (no JIT so far), so current 
progress is slow.

I am looking at #FFICallbackThunk>initializeARM32 but I don't yet 
understand quite what this code is trying to do, so have not made proper 
changes for arm64.

Anybody care to join in or advise me on this?

Note that I am neither a Pharo nor a UnifiedFFI user, so I may be making 
really dumb mistakes at this point (i.e. _you_ could help me out here!  
8^).

Thanks much in advance,
-KenD

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