[M3devel] threading on Windows?

[jay.krell at cornell.edu]

1. I never understood why this any better.
2. It how things are currently.
3. Why not m3cg.alloca? (but see #2)

 - Jay/iPad

On Feb 9, 2011, at 9:48 PM, Tony Hosking <hosking at cs.purdue.edu> wrote:

> What happened to fixing this with runtime hooks?
> 
> 
> On Feb 9, 2011, at 11:40 PM, Jay K wrote:
> 
>> Of course not.
>> It is a made-up function that the frontend generates a call to.
>> That it never previously did.
>> Using the general function call interface.
>> You need to add a special case, in the general function call code, to do something different and specific
>> for this specific function.
>>  
>>  
>>  - Jay 
>>  
>> From: rcolebur at SCIRES.COM
>> To: jay.krell at cornell.edu; m3devel at elegosoft.com
>> Date: Wed, 9 Feb 2011 22:28:45 -050
>> Subject: Re: [M3devel] threading on Windows?
>> 
>> Jay:
>>  
>> I looked thru the 4,618 lines of M3x86.m3, but I don’t see any reference to “m3_alloca” or even “alloc” in this file.
>>  
>> Regards,
>> Randy
>>  
>> From: jayk123 at hotmail.com [mailto:jayk123 at hotmail.com] On Behalf Of Jay K
>> Sent: Wednesday, February 09, 2011 9:01 PM
>> To: Coleburn, Randy; m3devel
>> Subject: RE: [M3devel] threading on Windows?
>>  
>> In m3back/src/M3x86.m3.
>>  
>>  - Jay
>> 
>>  
>> From: rcolebur at SCIRES.COM
>> To: m3devel at elegosoft.com
>> Date: Wed, 9 Feb 2011 18:22:56 -0500
>> Subject: Re: [M3devel] threading on Windows?
>> 
>> I am certainly willing to work on the problem, but need more context info about what caused it in order to know how to resolve.
>> All I know is that everything was working fine until I checked out the HEAD repository.
>> When you say “special case” calls “m3_alloca”, where do I go about finding this “special case”?
>> Are we talking Modula-3 code, C code, Assembler, what?  What package/module?
>> Regards,
>> Randy
>>  
>> From: jayk123 at hotmail.com [mailto:jayk123 at hotmail.com] On Behalf Of Jay K
>> Sent: Wednesday, February 09, 2011 5:59 PM
>> To: Coleburn, Randy; Mika Nystrom; m3devel
>> Subject: RE: [M3devel] threading on Windows?
>>  
>> Maybe someone else can do it?
>> The fix is: special case calls to the function "m3_alloca".
>> Change it to call "_chkstk" (or maybe "chkstk", whatever works).
>> The one parameter is an unsigned 32bit quantity, passed in eax, and the return value is a pointer, returned in esp.
>> To some extent I drag my feet hoping anyone else might become motivated enough to do it and start learning how.
>>  
>>  - Jay
>>  
>> > From: rcolebur at SCIRES.COM
>> > To: mika at async.caltech.edu; m3devel at elegosoft.com
>> > Date: Wed, 9 Feb 2011 17:25:20 -0500
>> > Subject: Re: [M3devel] threading on Windows?
>> > 
>> > Mika:
>> > 
>> > Sorry, but my Windows build is broken. Jay seems to indicate he is working on a "fix" and that this fix is relatively simple, but so far no solution has been checked in.
>> > 
>> > I've been wanting to run your program ever since you first checked it in, but that was about same time the HEAD branch update introduced a build problem. Problem is an unresolved symbol during link.
>> > 
>> > As soon as I can get the build problem resolved, I'll try out your test program.
>> > 
>> > Regards,
>> > Randy Coleburn
>> > 
>> > -----Original Message-----
>> > From: Mika Nystrom [mailto:mika at async.caltech.edu] 
>> > Sent: Wednesday, February 09, 2011 5:01 PM
>> > To: m3devel at elegosoft.com
>> > Subject: [M3devel] threading on Windows?
>> > 
>> > Hi m3devel,
>> > 
>> > I'm just curious if anyone out there who's running CM3 on Windows has had
>> > a chance to try my thread testing program yet. Current status on Unix
>> > (Linux, FreeBSD) appears to be that there are problems in pthreads (but
>> > I think only under heavy load) and that user threading works perfectly.
>> > So I now wonder how things are on the third threading platform (Windows).
>> > The thread testing program is at m3-libs/m3core/tests/thread .
>> > 
>> > (Note however that there is a memory leak in TRY-EXCEPT in the current
>> > head so don't try to update everything to the CVS head. The previous
>> > release should be OK.)
>> > 
>> > Also has anyone else noticed that debugging information has recently
>> > broken? m3gdb is very unhappy on all platforms for me...
>> > 
>> > Mika
> 
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