Vm-dev April 2007

vm-dev@lists.squeakfoundation.org

18 participants
24 discussions

Joys of Squeak-dev image, VM Compiling on MacIntel and Spoon remote OtherBrowsing
by Ken G. Brown 16 Nov '10

16 Nov '10

MacPro OS X 10.4.9 Xcode 2.4.1 Squeak-dev-114-2, VMMaker 2.8b6.1, Squeak 3.8.15beta6U.app, and version 1657 of svn MacOS VM sources, and Spoon v2a12. Downloaded http://www.squeakvm.org/cgi-bin/viewcvs.cgi/ trunk version 1657 for MacOS Ran squeak-dev-beta-114-2.image on Squeak 3.8.15beta6U.app Loaded VMMaker 3.8b6.1 from dev image Universes. Generated vm sources by following instructions in <http://www.squeakvm.org/cgi-bin/viewcvs.cgi/trunk/platforms/Mac%20OS/vm/Doc…> Fought with Xcode wanting to use MacOSX10.3.9.sdk for ppc which was giving an error which was known and documented in the Readme. Finally figured out what Xcode wanted so built universal app just using 10.4.9 sdk. Couple issues: Exupery references remain in sqnamedPrims.h and sqPlatformSpecific.h from svn version 1657, I just commented them out. Notes said: Info-NPSqueak__Upgraded_.plist was to be found in the Developer directory. I could not find it so scammed a info.plist out of John's Squeak 3.8.15beta6U.app vm. Not sure what impact this has. And much, much diddling about figuring out various things... Finally got a build. It's a lot smaller (3.9MB) than John McIntosh's Squeak 3.8.15beta6U.app (8.1MB), and it looks like it is a PowerPC one but at least it runs. I'll look into the Xcode build process some more. Then: Replaced interp.c with Craig's interp.c for Spoon, rebuilt and got a VM with Spoon client stuff. Downloaded Spoon release 2a12. Moved a copy of Flow plugin from within Craig's naiad.app package into a plugins subdirectory where the new spoon client compatible MacIntel universal VM was run from. Followed Craig's Spoon instructions for loading niaid.st and niaid.pr into the 3.10 image (Squeak-dev-114-2) running on the new VM. Did the run spoon.app thing from Spoon.dmg (version 2a12), needs to be done twice if Safari is not running. Got Spoon processor running. Followed instructions again in the Spoon client and lo! Got OtherBrowser browsing the Spoon memory running on processor. Yay Craig! Who do i get to sign my certificate? :) Ken

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gcc -Wall -pedantic (was: sweep failed to find exact end of memory)
by Diego Gomez Deck 14 Jun '07

14 Jun '07

Hi folks, Is not posible to find all the buggy casts (between unsigned and signed ints) using this compiler flags? Anyone did try it? Cheers, -- Diego

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File association for MacOSX broken
by Mathieu Suen 01 May '07

01 May '07

Hi, Under MacOSX when you try to rebind the default start up squeak vm of a .image it don't work. With the Finder you select a .image file and hit the cmd+i key after you to change the default app and set it for all file. When you start agin your image it always the previous VM. You can't change it. Ideas? thx Mth

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clipboard for other media types
by Takashi Yamamiya 30 Apr '07

30 Apr '07

Hello, I'm working about clipboard for OLPC Squeak (based on Fedora Core linux) to support multiple media type like image and rich text, instead of plain text only. I would like to know if such feature have already been available for other platforms. Especially, I remember that Croquet and Tweak have such methods. There are #primitiveClipboardAt: and #primitiveClipboardAt:put: in CClipboard, and ClipboardPlugin. It is for dealing with clipboard with any media type, isn't it? I couldn't find source code for ClipboarPlugin in squeakvm.org. But I think it is good to have same interface among various platforms to handle external clipboard. So I want know current status and source code of ClipboardPlugin for such feature. Thank you, - Takashi

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Re: [SqueakAudio] external midi devices
by Brad Fuller 28 Apr '07

28 Apr '07

Andrew Dabrowski wrote: > Do I need only the sqUnixMIDIALSA.inc file? Where does it go? That's an include file for the building of the unix Midi VM plugin. You'll need to know how to build the VM to play around with it. There are plenty of descriptions available if you'd like to do that. It's not hard if you're a C programmer and know linux. I was hoping that others might speak up, especially Florian, about the status of the file, before you dive into this. brad > > > Brad Fuller wrote: >> Andrew Dabrowski wrote: >>> Hi, >>> >>> I'm brand new to Squeak. I know that midi files can be played using >>> the >>> built in synth, but is there a way to play them with an external synth? >>> >>> I'm using Ubuntu Linux. Does Squeak see the Alsa midi ports? Would >>> Jack help? >> There is no jack plugin, that I've seen. >> Florian write an ALSA Midi port, which is in the OLPC branch: >> http://squeakvm.org/cgi-bin/viewcvs.cgi/branches/olpc/platforms/unix/plugin… >> >> >> I don't know what the thinking is of getting this moved to the main >> unix VM. I don't know if it even works. Florian might know (copied). >> >> I've posted this to the VM mailing list. Maybe someone knows the >> thinking about the plugin and also the strategy of moving the OLPC >> work to main. >> >> brad >> >>> >>> I've tried using the ScorePlayer class, with openMIDIPort: 20 (the port >>> number of my synth as it shows up in alsa), but I get a "Primitive >>> failed" error message when I try to play something. > _______________________________________________ > SqueakAudio mailing list > SqueakAudio(a)create.ucsb.edu > http://www.create.ucsb.edu/mailman/listinfo/squeakaudio > -- brad fuller www.bradfuller.com +1 (408) 799-6124

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Re: [SqueakAudio] external midi devices
by Brad Fuller 28 Apr '07

28 Apr '07

Andrew Dabrowski wrote: > Hi, > > I'm brand new to Squeak. I know that midi files can be played using the > built in synth, but is there a way to play them with an external synth? > > I'm using Ubuntu Linux. Does Squeak see the Alsa midi ports? Would > Jack help? There is no jack plugin, that I've seen. Florian write an ALSA Midi port, which is in the OLPC branch: http://squeakvm.org/cgi-bin/viewcvs.cgi/branches/olpc/platforms/unix/plugin… I don't know what the thinking is of getting this moved to the main unix VM. I don't know if it even works. Florian might know (copied). I've posted this to the VM mailing list. Maybe someone knows the thinking about the plugin and also the strategy of moving the OLPC work to main. brad > > I've tried using the ScorePlayer class, with openMIDIPort: 20 (the port > number of my synth as it shows up in alsa), but I get a "Primitive > failed" error message when I try to play something.

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Re: [Vm-dev] search order for plugins
by subbukk 27 Apr '07

27 Apr '07

On Friday 27 April 2007 1:40 am, Ian Piumarta wrote: > On Apr 26, 2007, at 11:48 AM, subbukk wrote: > > The most likely place to find plugins would be the directory where the > > squeakvm executable is located. So, shouldn't the search start from > > that > > directory? > > No. If the search started in VM_LIBDIR then there would be no way to > override a system-wide installed plugin with a per-user personalised > plugin. There is the command line override to take care of special cases. The logic: libpath = -plugin option if given followed by dirname of argv[0] should handle all cases without penalizing the most common case. BTW, isn't VM_LIBDIR set at compile time? The actual location would depend on the package maintainer, so I would prefer $(dirname $0) to VM_LIBDIR. > > The current directory is not a reliable location and should be > > tried only as a last resort. > > You are probably right. However, it was placed first to allow > overriding of a system-wide plugin before SQUEAK_PLUGIN_PATH was > invented. Now that a knowledgeable user can set that variable to > override installed plugins, './' should probably go away entirely. Env variables are required to influence the running env of multiple commands. In our case, there is only one command. A command line option should suffice to modify the behavior. IMHO, env variables are an overkill. The current code is not wrong. It is just more complex than what it should be raising the risk of code rot. Squeak VM's strong points are its simplicity, portability and compactness. I thought it pertinent to point out an opportunity for simplification. Regards .. Subbu

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[Fwd: Unix VM segfaults w/ clipboard?]
by Andreas Raab 26 Apr '07

26 Apr '07

[Oops, this went to the wrong list first] Hi - I've noticed this a couple of times now: When we run a Unix VM using -headless and connect to it using VNC any attempt to copy/paste is honored with a segfault. The VM output is this: Segmentation fault -1282466960 Clipboard>clipboardText -1282468224 Clipboard class>clipboardText -1282468316 ParagraphEditor>clipboardText -1282484648 ParagraphEditor>cut -1282485584 ParagraphEditor>cut: -1282489428 ParagraphEditor>dispatchOnCharacter:with: -1282489520 TextMorphEditor>dispatchOnCharacter:with: -1282489612 ParagraphEditor>readKeyboard -1282489704 TextMorphEditor>readKeyboard -1282505636 [] in TextMorph>keyStroke: -1282505728 TextMorph>handleInteraction:fromEvent: -1282505820 TextMorphForEditView>handleInteraction:fromEvent: -1282505964 TextMorph>keyStroke: -1282506056 TextMorphForEditView>keyStroke: -1282506148 TextMorph>handleKeystroke: -1282506516 KeyboardEvent>sentTo: -1282506608 Morph>handleEvent: [... etc ...] which seems to indicate that it's dying in the clipboard primitive. Any ideas what might be crashing the VM and how to fix that? Thanks, - Andreas

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search order for plugins
by subbukk 26 Apr '07

26 Apr '07

Hi, In platforms/unix/vm/sqUnixExternalPrims.c: 231 if (( handle= tryLoading( "./", pluginName)) 232 || (handle= tryLoadingPath("SQUEAK_PLUGIN_PATH", pluginName)) 233 || (handle= tryLoading( VM_LIBDIR"/", pluginName)) 234 || (handle= tryLoadingPath("LD_LIBRARY_PATH", pluginName)) 235 || (handle= tryLoading( "", pluginName)) The most likely place to find plugins would be the directory where the squeakvm executable is located. So, shouldn't the search start from that directory? The current directory is not a reliable location and should be tried only as a last resort. An strace of squeak (3.7.7) startup reveals 181 attempts to open of which 179 fails with ENOENT. Regards .. Subbu

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Get a symbol pointer une VMMaker
by Mathieu Suen 19 Apr '07

19 Apr '07

Hi, I am trying to hack some method and I would like to send a message to a Squeak object in the VM. How the reification works between the VM and the Squeak word? I could do somethigs like: messageSelector := "Pointer to the symbol I don't know how to retrieve." argumentCount := 1 self normalSend. Thanks Mth

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Vm-dev April 2007