[M3devel] PPC_LINUX breaks

[Jay]

[redundant]
ok, I commited fixes for what I have seen so far.
There was no delete, though probably changes -- sigset changes from int to 1024 bits for example, or somesuch.
I'm sure you all see the commits.
Given that PPC_LINUX still uses usermode threads, could have "that" problem, we'll see..
Gotta go for a while now.

 - Jay

From: jayk123 at hotmail.com
To: hosking at cs.purdue.edu; stsp at elego.de
CC: m3devel at elegosoft.com
Subject: RE: [M3devel] PPC_LINUX breaks
Date: Fri, 4 Jan 2008 20:45:06 +0000







I'm confused here on what got deleted. I keep seeing it present. I swear I saw the diff though.. :(
Browing CVS is such a pain.

 - Jay

From: jayk123 at hotmail.com
To: hosking at cs.purdue.edu; stsp at elego.de
Date: Fri, 4 Jan 2008 19:58:45 +0000
CC: m3devel at elegosoft.com
Subject: Re: [M3devel] PPC_LINUX breaks







I figured out a bunch here.

a) the diffs I showed.

b) "nip" is "next instruction pointer"; that's what you want in the SegV function.
And the last parameter should be void_star instead of int.
You can use like pt_regs.nip for the old definition or uc_regs.gprregs[PT_NIP] for the new definition.
I have diffs here.

c) Usignal.i3 had the stuff vtalarm stuff removed, which PPC_LINUX still uses, "POSIX threads" vs. "PThreads" (oh the names..), though perhaps broken by setjmp/longjmp "scrambling".

Is it possible to break up an interface into

linux-common/foo.i3
linux-ppc/foo.i3

I think not.

Shall we just go ahead and translate LINUX_PPC pthread.h into Modula-3? (Btw, doesn't anyone find all this header rewriting sleazy? Or they have to maintain compat anyway so no problem?)

The error messages are poor.

Let's say I.T does not exist.

VAR x : I.T;  (* no error *)
x.foo = bar; (* "unknown qualification" *)

FROM I IMPORT T; (* "T not exported" -- better, but should say T does not exist
 I was fumbling around with needing a module to say "EXPORTS" or to capitalize
 the Interface directive in m3makefile, neither of which seemed right
 *)

 - Jay

> From: hosking at cs.purdue.edu
> Date: Fri, 4 Jan 2008 09:43:31 -0500
> To: stsp at elego.de
> CC: m3devel at elegosoft.com
> Subject: Re: [M3devel] PPC_LINUX breaks
> 
> Has anyone built PPC_LINUX?  I've never tried.
> 
> On Jan 4, 2008, at 9:15 AM, Stefan Sperling wrote:
> 
> > On Thu, Jan 03, 2008 at 10:09:22PM +0000, Jay wrote:
> >>
> >> I can't build PPC_LINUX.
> >
> > It's been broken at least since the 5.4 release was made.
> >
> > Back then I failed to build it, and we decided to drop
> > it from the 5.4 release. It needs fixing.
> >
> > -- 
> > Stefan Sperling <stsp at elego.de>                 Software Developer
> > elego Software Solutions GmbH                            HRB 77719
> > Gustav-Meyer-Allee 25, Gebaeude 12        Tel:  +49 30 23 45 86 96
> > 13355 Berlin                              Fax:  +49 30 23 45 86 95
> > http://www.elego.de                 Geschaeftsfuehrer: Olaf Wagner
> 

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