Squeak-dev September 2014

squeak-dev@lists.squeakfoundation.org

49 participants
162 discussions

Segfault during Clipboard>>#clipboardTest?
by Frank Shearar 09 Sep '14

09 Sep '14

Has anyone ever seen this before? >From http://build.squeak.org/job/SqueakTrunkOnInterpreter/441/console: 2014-09-07T23:16:48.865+01:00: Loading Hudson build tools... from /var/lib/jenkins/workspace/SqueakTrunkOnInterpreter/target/HudsonBuildTools.st 2014-09-07T23:16:49.218+01:00: Running tests... SocketPlugin: ignoring unknown option 'SO_REUSEPORT' SocketPlugin: ignoring unknown option 'SO_REUSEPORT' Segmentation fault -2003724560 Clipboard>clipboardText -2003724652 ClipboardTest>setUp -2003724756 TestCase>runCase -2003724848 BlockClosure>on:do: -2003724940 TestCase>timeout:after: -2003725032 BlockClosure>ensure: -2003726844 TestCase>timeout:after: -2003727456 TestCase>runCase -2003727548 BlockClosure>ensure: -2003727640 TestCase>runCase -2003728140 HDTestReport>runCase: -2003728232 BlockClosure>on:do: -2003728396 HDTestReport>runCase: -2003728512 Time class>millisecondsToRun: -2003728868 BlockClosure>timeToRun -2003728960 HDTestReport>runCase: -2003729052 TestCase>run: -2003729144 HDTestReport>runAll -2006588604 OrderedCollection>do: -2006588696 HDTestReport>runAll -2006588788 HDTestReport>run -2006588880 Time class>millisecondsToRun: -2006588972 BlockClosure>timeToRun -2006595640 HDTestReport>run -2006595748 BlockClosure>ensure: -2006595840 HDTestReport>run -2006595932 HDTestReport class>runSuite: -2006620808 HDTestReport class>runClasses:named: -2006621476 HDTestReport class>runPackage: -2006621568 HDReport class>runPackages: -2010169288 OrderedCollection>collect: -2010169380 HDReport class>runPackages: -2010179524 UndefinedObject>? -2010196432 Compiler>evaluateCue:ifFail: -2010196540 Compiler>evaluateCue:ifFail:logged: -2010196632 Compiler>evaluate:in:to:notifying:ifFail:logged: -2010197584 Compiler class>evaluate:for:notifying:logged: -2010197676 Compiler class>evaluate:for:logged: -2010197768 Compiler class>evaluate:logged: -2010197904 PositionableStream>fileInAnnouncing: -2010197996 BlockClosure>on:do: -2010198088 PositionableStream>fileInAnnouncing: -2010198332 MorphicUIManager>displayProgress:at:from:to:during: -2010198424 BlockClosure>on:do: -2010198516 MorphicUIManager>displayProgress:at:from:to:during: -2010198608 BlockClosure>ensure: -2010198848 MorphicUIManager>displayProgress:at:from:to:during: -2010198940 ProgressInitiationException>defaultResumeValue -2010199044 Exception>resume -2010199136 ProgressInitiationException>defaultAction -2010199228 UndefinedObject>handleSignal: -2010199320 Exception>signal -2010199512 ProgressInitiationException>display:at:from:to:during: -2010199604 ProgressInitiationException class>display:at:from:to:during: -2010199696 String>displayProgressAt:from:to:during: -2010199816 String>displayProgressFrom:to:during: -2010199908 PositionableStream>fileInAnnouncing: -2010200000 PositionableStream>fileIn -2010203080 CodeLoader>installSourceFile: -2010203348 CodeLoader>installSourceFiles -2010203440 SequenceableCollection>do: -2010203532 CodeLoader>installSourceFiles -2010203896 ProjectLauncher>startUpAfterLogin -2010205308 ProjectLauncher>startUp -2010205400 AutoStart class>startUp: -2012218768 WorldState>runStepMethodsIn: -2012218860 PasteUpMorph>runStepMethods -2012254196 WorldState>doOneCycleNowFor: -2012254288 WorldState>doOneCycleFor: -2012254380 PasteUpMorph>doOneCycle -2021708320 MorphicProject>? -2021708932 BlockClosure>?

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"Code bubbles" - a prototype IDE
by Frank Shearar 09 Sep '14

09 Sep '14

Again, projects moving towards viewing small chunks of code/data (whether method, class definition, variables in a stack frame, etc). Familiar stuff, and maybe food for thought for alternative code browsers. http://www.andrewbragdon.com/codebubbles_site.asp Overview Developers spend significant time reading and navigating code fragments spread across multiple locations. The file-based nature of contemporary IDEs makes it prohibitively difficult to create and maintain a simultaneous view of such fragments. We propose a novel user interface metaphor for code understanding and maintanence based on collections of lightweight, editable fragments called bubbles, which form concurrently visible working sets. The essential goal of this project is to make it easier for developers to see many fragments of code (or other information) at once without having to navigate back and forth. Each of these fragments is shown in a bubble. A bubble is a fully editable and interactive view of a fragment such as a method or collection of member variables. Bubbles, in contrast to windows, have minimal border decoration, avoid clipping their contents by using automatic code reflow and elision, and do not overlap but instead push each other out of the way. Bubbles exist in a large, pannable 2-D virtual space where a cluster of bubbles comprises a concurrently visible working set. Bubbles support a lightweight grouping mechanism, and further support connections between them. A quantitative user study indicates that Code Bubbles increased performance significantly for two controlled code understanding tasks. A qualitative user study with 23 professional developers indicates substantial interest and enthusiasm for the approach, despite the radical departure from what developers are used to.

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Re: [squeak-dev] The Trunk: System-dtl.685.mcz
by Eliot Miranda 09 Sep '14

09 Sep '14

On Sun, Sep 7, 2014 at 1:58 PM, <commits(a)source.squeak.org> wrote: > David T. Lewis uploaded a new version of System to project The Trunk: > http://source.squeak.org/trunk/System-dtl.685.mcz > > ==================== Summary ==================== > > Name: System-dtl.685 > Author: dtl > Time: 7 September 2014, 4:58:15.377 pm > UUID: 55eba121-23d3-41cc-9525-52554adac2ec > Ancestors: System-eem.684 > > Smalltalk isRunningCog should answer false for an interpreter VM > > =============== Diff against System-eem.684 =============== > > Item was changed: > ----- Method: SmalltalkImage>>isRunningCog (in category 'system > attributes') ----- > isRunningCog > "Answers if we're running on a Cog VM (JIT or StackInterpreter)" > > + ^( [self vmParameterAt: 42] on: Error do: [] ) > - ^(self vmParameterAt: 42) > ifNil: [false] > ifNotNil: [:numStackPages| numStackPages > 0]! > Instead of creating an exception handler why not modify the interpreter to answer nil? I know the answer is that the Interpreter doesn't, and fails. But we've had years in which we could change the Interpreter to match vmParameterAt: and instead of doing the good thing (have the Interpreter answer nil for values answered by Cog VMs), we force the standard system to waste time. We should optimize the common case (trunk running on Cog) not penalize it to cover the uncommon case (trunk running on Interpreter VM). -- best, Eliot

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[Smalltalks 2014] --- Invitation
by Andres Valloud 09 Sep '14

09 Sep '14

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Is anyone else running a 64-bit image on a regular basis?
by David T. Lewis 08 Sep '14

08 Sep '14

I tend to switch back and forth between a variety of VMs and images (Spur, Cog, interpreter VM etc). Lately I have been doing my updates from a format 68002 64-bit image. Just curious, is anybody else out there using a 64-bit image on a regular basis and keeping it updated from the trunk development stream? Dave

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Daily Commit Log
by commits＠source.squeak.org 08 Sep '14

08 Sep '14

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2014-September/007267.… Name: System-dtl.685 Ancestors: System-eem.684 Smalltalk isRunningCog should answer false for an interpreter VM =============================================

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The Trunk: System-dtl.685.mcz
by commits＠source.squeak.org 07 Sep '14

07 Sep '14

David T. Lewis uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-dtl.685.mcz ==================== Summary ==================== Name: System-dtl.685 Author: dtl Time: 7 September 2014, 4:58:15.377 pm UUID: 55eba121-23d3-41cc-9525-52554adac2ec Ancestors: System-eem.684 Smalltalk isRunningCog should answer false for an interpreter VM =============== Diff against System-eem.684 =============== Item was changed: ----- Method: SmalltalkImage>>isRunningCog (in category 'system attributes') ----- isRunningCog "Answers if we're running on a Cog VM (JIT or StackInterpreter)" + ^( [self vmParameterAt: 42] on: Error do: [] ) - ^(self vmParameterAt: 42) ifNil: [false] ifNotNil: [:numStackPages| numStackPages > 0]!

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Aligned < and > on the banner: nice!
by Frank Shearar 07 Sep '14

07 Sep '14

Hey Chris Cunnington, I only just noticed how nicely aligned the < and > symbols are on the main banner. Thanks! frank

2 1

New CogVMs available
by Eliot Miranda 06 Sep '14

06 Sep '14

...at http://www.mirandabanda.org/files/Cog/VM/VM.r3058/. CogVM binaries as per VMMaker.oscog-eem.842/r3058 Spur: Provide unpinObject: for InterpreterProxy. Fix initialization of the heap-resident remembered set added by VMMaker.oscog-eem.827. It must be created /after/ old space is initialized. Fix two become bugs surfaced when adding/removing inst vars to/from Association, Binding et al. First, the class table must be scanned to ensure there are no forwarders to classes (much cheaper than the full hierarchy walk to follow method dictionaries etc that was done). Second, machine code methods that gain a new reference through become must get added to the youngReferrers. Add a new become effect flag, OldBecameNew that captures this and respond to it in CoInterpreter>>postBecomeAction: by adding all methods to youngReferrers so that on the next scavenge all will be made right. Fix GC of machine code, which must follow forwarders when doing markAndTraceLiteral: and again add to youngReferrers if following gains a new ref. Refactoring of markAndTraceLiteral: into markAndTraceLiteral:in:at: et al required. Fix assert in addFreeSubTree:. General: Support the alternate bytecode set header in all VMs to ease testing of multiple bytecode sets. This means methods with the sign bit set have no primitive field and a larger num literals field, but no more. Fix longPrintOop: (actually printOopShortInner:) for global variable printing in face of new Environments. Cogit: Clean up adding to the youngReferrers by providing ensureInYoungReferrers:. Since there always is room on youngReferrers, nuke roomOnYoungReferrersList, canLinkToYoungClasses and caller code, simplifying ceSend:super:to:numArgs: etc. Fix assert in followForwardedLiteralsIn: General: Change the scanning for initial nils scheme in the StackToRegisterMappingCogit to answer the number of push nils in a bytecode, instead of whether the bytecode is a push nil. Refactor genReturnTopFromBlock into genBlockReturn. These changes accomodate Sista. Rationalize the length functions, deleting byteLengthOf:, fetchLong32LengthOf: & fetchWordLengthOf: and providing numBytesOf:, num16BitUnitsOf:, num32BitUnitsOf:, num64BitUnitsOf: and numBytesOf:. Provide fetch/storeShort16:ofObject:[withValue:] and fetch/storeLong64:ofObject:[withValue:]. -- best, Eliot

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Squeak VM on Debian? (http://ftp.squeak.org/4.5/cogvm_2776-1_i386.deb)
by H. Hirzel 06 Sep '14

06 Sep '14

Hello I was pointed to http://ftp.squeak.org/4.5/cogvm_2776-1_i386.deb from http://www.squeak.org/Downloads. It installed successfully on Linux Mint Maya. I downloaded as well the http://fulloo.info/Downloads/BabyIDE-3a.zip How do I call the VM from the command line. squeak --version squeakvm --version does not work. thank you for the answer in advance Hannes

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