July 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] help needed with the new FFI plugin...
by Eliot Miranda July 22, 2011

July 22, 2011

Hi All, today I committed the threaded FFI plugin along with the threaded VM and hope to be able to support people in doing threaded FFI work on the x86 platforms really soon now (Esteban, amongst others, this means you ;) ). But to put the image-level code that uses the new FFI plugin into production the standard VM needs to be upgraded to not crash with the ExternalFunction image changes the new threaded FFI plugin wants. The main change is that ExternalFunction changes size, gaining a stackSize inst var which is used to tell the FFI plugin how much stack spacer to reserve for marshalling (its computed on first use). The best way for this to happen is to start using the ThreadedFFIPlugin as the standard plugin in the Interpreter VM. The ThreadedFFIPlugin overall is simpler than the old FFI plugin (no assembler support code) and better (fully reentrant). But for this to happen we may need to implement the platform=specific parts of the ThreadedFFIPlugin (still entirely Smalltalk code) for PowerPC and ARM (and perhaps others, SPARC??). I understand what has to be done and I can explain it to anyone interested in working on the problem, but I don't have any hardware with which I can test the results so its pretty pointless my doing the work and producing something inevitably broken. So are there people out there who would be interested in doing the port to PPC and ARM? It means fleshing out the classes ThreadedARMFFIPlugin ThreadedFFICalloutStateForARM ThreadedPPCBEFFIPlugin ThreadedFFICalloutStateForPPC and having a solid understanding of how alloca works to do stack allocation and how the ABIs on ARM and PPC pass registers. here's hoping there are a few good low-level people who would be interested. Let me know. -- best, Eliot

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[Pharo-project] UUIDs not so unique
by Philippe Marschall July 21, 2011

July 21, 2011

Hi I have run into an issue where there wouldn't any unique UUIDs be produced any more. ((1 to: 100) collect: [ :i | UUID new asString ]) asSet size answers 2 or 3 in my image. My system: linux 64bit cog r2462 Pharo 1.3 latest updates (no changes to the UUID class) I found the issue because there are several versions of Seaside-Core in the WIP repository [1] with the same UUID. For example Seaside-Core-pmm.728 and Seaside-Core-pmm.729 or Seaside-Core-pmm.727 and Seaside-Core-pmm.726. Since this means I can't write any Seaside code anymore I'm obviously not happy. [1] http://www.squeaksource.com/SeasideWip Cheers Philippe

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[Pharo-project] new Cog VMs available
by Eliot Miranda July 21, 2011

July 21, 2011

....at http://www.mirandabanda.org/files/Cog/VM/VM.r2468/. These fix a problem with the ALien plugin assigning -2^31 into Aliens, and fix UUID generation on linux. -- best, Eliot

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[Pharo-project] [update 1.4] #14050
by StÃ©phane Ducasse July 20, 2011

July 20, 2011

14050 ----- Preparation for Ring integration

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[Pharo-project] why isEmptyOrNil is not defined in Object?
by StÃ©phane Ducasse July 20, 2011

July 20, 2011

Hi guys I'm puzzled and probably need food. but why isEmptyOrNil is not defined in Object? because right now if a variable is '' or nil or something else I cannot use it. Stef

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[Pharo-project] Why does CompiledMethod>>hasLiteral: use ==
by Sean P. DeNigris July 20, 2011

July 20, 2011

I tried: aMethod hasLiteral: #DateAndTime->DateAndTime and got false, even though an "=" literal is indeed there. Why doesn't #hasLiteral: use #=? Thanks. Sean -- View this message in context: http://forum.world.st/Why-does-CompiledMethod-hasLiteral-use-tp3676573p3676… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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[Pharo-project] [update 1.4] #14050
by Torsten Bergmann July 20, 2011

July 20, 2011

Pavel wrote: >is there some paper about Ring? see http://goo.gl/7Er5O Stef: would it be possible to add the URL's to the update notes as we discussed in May in thread "Linking Update Mails to issue tracker" Thx and Bye T. -- Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de

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[Pharo-project] fun bug: fileouting method with a $!, produces $!!
by stephane ducasse July 20, 2011

July 20, 2011

Hi with veronica we found a fun bug. If you have a method with a $! and you file it out. you get $!! in the fileouted file. http://code.google.com/p/pharo/issues/detail?id=4531 Stef

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[Pharo-project] UUIDs not so unique
by Igor Stasenko July 20, 2011

July 20, 2011

On 20 July 2011 18:58, Eliot Miranda <eliot.miranda(a)gmail.com> wrote: > Hi Igor, (Hi Phillipe) > Â Â Â yes, I see the bug in the linux Cog VMs. Â I went to > http://code.google.com/p/pharo/issues/detail?id=4541Â but I don't see any > fix. Â Can you point me to the fix and I'll integrate and roll out new VMs > ASAP. > TIA > Here: https://gitorious.org/cogvm/blessed/commit/4a3f8bf9f560c19b167ee1b3d5ab6c52… > On Wed, Jul 20, 2011 at 8:51 AM, Igor Stasenko <siguctua(a)gmail.com> wrote: >> >> On 20 July 2011 16:27, Torsten Bergmann <astares(a)gmx.de> wrote: >> > Igor wrote: >> >>Feel free to submit an additional test for UUID to prevent this >> >>regression in a future. >> > >> > I already provided such a test in my previous post: >> > >> > >> > http://lists.gforge.inria.fr/pipermail/pharo-project/2011-July/051481.html >> > >> > and now there is a fixed issue ready for integration >> > >> > http://code.google.com/p/pharo/issues/detail?id=4541 >> > >> Thanks, Torsten. >> >> > Nothing more to do on Pharo side than integration this test case >> > into one of the next updates. >> > >> > >> > But the VM maintainers should fix the issue for the VM >> > Phillipe used. >> > >> i will check the unix configs for Cog VMs. >> But since Philippe using Eliot's builds, then he should wait till >> Eliot integrate it (hoping that Eliot reads this mailing list and >> corresponding topic). >> >> > Bye >> > T. >> > -- >> > NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurÃ¼ck-Garantie! >> > Jetzt informieren: http://www.gmx.net/de/go/freephone >> > >> > >> >> >> >> -- >> Best regards, >> Igor Stasenko AKA sig. >> > > > > -- > best, > Eliot > -- Best regards, Igor Stasenko AKA sig.

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[Pharo-project] UUIDs not so unique
by Torsten Bergmann July 20, 2011

July 20, 2011

Igor wrote: >Feel free to submit an additional test for UUID to prevent this >regression in a future. I already provided such a test in my previous post: http://lists.gforge.inria.fr/pipermail/pharo-project/2011-July/051481.html and now there is a fixed issue ready for integration http://code.google.com/p/pharo/issues/detail?id=4541 Nothing more to do on Pharo side than integration this test case into one of the next updates. But the VM maintainers should fix the issue for the VM Phillipe used. Bye T. -- NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurÃ¼ck-Garantie! Jetzt informieren: http://www.gmx.net/de/go/freephone

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