[kaffe] DArwin6 JIT3

Timothy Stack stack at cs.utah.edu
Mon Feb 21 05:28:59 PST 2005

On Feb 20, 2005, at 12:52 PM, Dalibor Topic wrote:

> Timothy Stack wrote:
>> On Feb 20, 2005, at 5:21 AM, Dalibor Topic wrote:
>> As for why stuff doesn't work, have you guys tried reverting my last 
>> changes to
>> sysdepCallMethod and the ppc trampoline?  I probably screwed it up 
>> wrt darwin
>> when I was getting linux to work.
> Hi Tim!
> In order to get familiar with the jit3/ppc setup i thought about 
> porting the mnemonicizer setup to x86. Does that souind like a useful 
> idea?

The script is a bit specific to PowerPC/RISC architectures, and x86 is 
so different
at the bit level that I don't think it'll help much.

> ah! xdebugging works with ppc?

It should, whether or not it works has more to do with the toolchain 
than the CPU.

>>   # disassemble the native code.
>>   (gdb) disas meth.ncode    # or whatever the structure is nowadays
>> It doesn't always work quite right unfortunately, but it should get 
>> you pretty far.
> thanks :) any ppc-assmebler reference you could recommend?

I was using the "compiler writers guide" and the main architecture 
manual that I
got in pdf form.  Unfortunately, I don't have the links handy.  For  
dealing with
ABI stuff, the OS-X stuff should be in the "mach-o" runtime 
provided by apple, i think.

> cheers,
> dalibor topic


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