[uae] Re: New test builds 20050614
- From: Richard Drummond <evilrich@xxxxxxxxxxxxxx>
- To: uae@xxxxxxxxxxxxx
- Date: Fri, 17 Jun 2005 01:50:43 -0500
Hi Francis
On Tuesday 14 June 2005 05:11 pm, francis klein wrote:
> I have tested the newbsdsocket_emu with Thor (the newsreader).
>
> On the G5 (Panther)
> I get a few posts and the Amiga hang, the pointer freeze, but the
> Emulation don't crash, i have to reboot (F11+R)
>
> I have tried with the 20050607 build just in case. i have
> recuperated 1000+ posts without a problem.
>
> I have retried with the 20050614, same thing as the first time, hang
> & freeze.
>
> But, I have failed to reproduce the problem with the G4 (Tiger).
> Thor seem to be working fine with the newbsdsocket.
>
> Tomorrow i try to switch the configurations between the two
> computers, just to be sure.
> Maybe your are right for the stack magic stuff problems on the G5.
>
> Hope to make sens with my poor english. sorry for that.
Okay. To summarize what you've written and to check that I understand you:
The 'new' bsdsocket emulation (in 20050614) works okay on your G4/Tiger
system, but doesn't on your G5/Panther system?
I would guess that the stack-twiddling that the 'new' bsdsocket code does
would be a problem on the G5, because, as far as I undersand it (and I'm
fairly sure I do), the PowerPC architecture doesn't have 32-bit and 64-bit
modes like, for instance, the AMD64 has. You can run 32-bit binaries
transparently on a 64-bit chip - the problem is, as far as the stack magic
code is concerned, a 64-bit PPC chip still uses 64-bit stack frames when
running 32-bit code. So I don't think I can fix this at the moment, short of
creating a 64-bit E-UAE executable (which I'm not even sure that I can do,
since I'm still running 10.2 here).
Possible solutions:
1) Provide a binary which uses the 'old' bsdsocket emulation.
2) Provide a PPC64 binary with a fixed 'new' bsdsocket emulation for G5 users.
3) Find another solution for getting the 'new' bsdsocket emulation which
doesn't perform voodoo on the stack.
You can probably see why I think the stack-magic stuff is evil. ;-)
Anybody else got any bright ideas?
Cheers,
Rich
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