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[ANN] Dates Pharo Sprints
by Marcus Denker June 26, 2017

June 26, 2017

Hi, I have added Events for all the next Pharo Sprint Dates in the Events page: https://association.pharo.org/events There is one for each month with the exception of August (holidays, ESUG the week after). Marcus

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Reviving the Android VM
by Michael Rueger June 26, 2017

June 26, 2017

Hi all, long time no see :-) Recently I spent a bit of time trying to piece together an Android VM using the up to date versions of AndroidStudio, SDK and NDK. Once things are building and running, I was planning to fold everything back into the proper build process. Current (somewhat messy) state of things here https://github.com/mrueger42/st-android It has been quite a long time since I looked at building VMs, so forgive me if I'm just being stupid here... I was able to get the original port from Andreas to build and run, but it is a very outdated version. Still nice to have it as a piece of history, I think (AndroidVM in the above repo). Some puzzle pieces later I have something running that is based on recent CogSpur opensmalltalk code and bits and pieces I found. Unfortunately CogSpur doesn't seem to play well with the setjmp/longjmp used in the code (CogDroid in the above repo). Plus, the VM is running on the UI thread, not something that is viewed well on mobile. Actually it makes Android just kill the app if you block the UI thread for too long. Trying to run the VM on a thread runs into a division by 0 exception (I think) and finds me way out of my league to track down why that would be. Crash below... I haven't really tried getting Dmitry's version to build/work in a current environment, partly because I'm not sure I'm looking at the most up to date version (see below). Any help, pointers, code snippets highly appreciated! Cheers Michael P.S. Sending this to vm-dev and pharo-dev, but should probably send any followup to vm-dev? -------- list of sources I looked at: -opensmalltalk -pharo -original port by Andreas git@github.com:timfel/squeak-android-vm.git -stack https://github.com/sbragagnolo/pharo-vm/ -dmitry gitorious is no longer, just an archival snapshot clicking on snapshot gives you the sources https://gitorious.org/cogvm/dmg-blessed?p=cogvm:dmg-blessed.git;a=summary non-functional jenkins setup https://ci.inria.fr/pharo-contribution/view/VM/job/CogDroid/configure-reado… ------------- The Cog VM crash when running on a Thread: D/jni-vm: Java_org_smalltalk_android_vm_VM_runVM D/jni-vm: runVM D/jni-vm: interpret A/libc: Fatal signal 8 (SIGFPE), code -6, fault addr 0x67db in tid 26636 (Thread-5) Revision: '6' ABI: 'arm' pid: 26587, tid: 26636, name: Thread-5 >>> org.smalltalk.android <<< signal 8 (SIGFPE), code -6 (SI_TKILL), fault addr 0x67db r0 00000000 r1 0000680c r2 00000008 r3 00000000 r4 e4f7f978 r5 00000008 r6 e4f7f920 r7 0000010c r8 e4f7ef60 r9 e3516400 sl e351648c fp e4f7ecb4 ip 00000002 sp e4f7ce30 lr efca84c7 pc efcaad30 cpsr 600e0010 backtrace: #00 pc 0004ad30 /system/lib/libc.so (tgkill+12) #01 pc 000484c3 /system/lib/libc.so (pthread_kill+34) #02 pc 0001dd99 /system/lib/libc.so (raise+10) #03 pc 000c54a3 /data/app/org.smalltalk.android-2/lib/arm/libStackVM.so #04 pc 00051507 /data/app/org.smalltalk.android-2/lib/arm/libStackVM.so #05 pc 0003d38b /data/app/org.smalltalk.android-2/lib/arm/libStackVM.so (interpret+238) #06 pc 000a4e6f /data/app/org.smalltalk.android-2/lib/arm/libStackVM.so (runVM+22) #07 pc 000a4a55 /data/app/org.smalltalk.android-2/lib/arm/libStackVM.so (Java_org_smalltalk_android_vm_VM_runVM+36) #08 pc 0031ec99 /data/app/org.smalltalk.android-2/oat/arm/base.odex (offset 0x302000)

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[pharo-project/pharo-core]
by GitHub June 26, 2017

June 26, 2017

Branch: refs/tags/60502 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] 9233b8: 60502
by GitHub June 26, 2017

June 26, 2017

Branch: refs/heads/6.0 Home: https://github.com/pharo-project/pharo-core Commit: 9233b82ca99c4b742cb0902f6faad3e0dd3f7e20 https://github.com/pharo-project/pharo-core/commit/9233b82ca99c4b742cb0902f… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2017-06-26 (Mon, 26 Jun 2017) Changed paths: R Kernel-Tests.package/AllocationTest.class/instance/testing/testOutOfMemorySignal.st M Morphic-Core.package/Morph.class/instance/debug and other/buildDebugMenu_.st R ScriptLoader60.package/ScriptLoader.class/instance/pharo - scripts/script60501.st A ScriptLoader60.package/ScriptLoader.class/instance/pharo - scripts/script60502.st R ScriptLoader60.package/ScriptLoader.class/instance/pharo - updates/update60501.st A ScriptLoader60.package/ScriptLoader.class/instance/pharo - updates/update60502.st M ScriptLoader60.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Tool-Profilers.package/SpaceTally.class/class/fileout/printSpaceAnalysis.st Log Message: ----------- 60502 20110 AllocationTest>>#testOutOfMemorySignal not well suited to 64-bit https://pharo.fogbugz.com/f/cases/20110 20096 Add script pragma to SpaceTally>>printSpaceAnalysis https://pharo.fogbugz.com/f/cases/20096 20174 In the debug halo of a morph: clicking on "inspect morph" and "explore morph" bring up the same window. https://pharo.fogbugz.com/f/cases/20174 http://files.pharo.org/image/60/60502.zip

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vested interest in PharoJS?
by Siemen Baader June 24, 2017

June 24, 2017

Hi all, Is anyone else interested in PharoJS and making it mature for their own commercial mobile and single page web app (and node.js) development? I think it has a huge potential because it brings the browser runtime and many libraries and online services from the JS world to us Smalltalkers while letting us keep our agile development and good CS practices. But it does not yet have the necessary features and documentation to work smoothly. -- Siemen

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New User and the Rectangle class.
by Trey Tomes June 24, 2017

June 24, 2017

Hello! I'm new to this list, so I apologize if this topic has already been considered. I have been re-creating the Laser Game tutorial in Pharo 6, and have encountered something that may be an error within Pharo. The LayoutFrame has the ability to use negative values for the bottom and right sides of the rectangle assigned to the offsets, e.g. LayoutFrame fraction: ((0@0 corner: (1@1)) offsets: ((4@4 corner: (-4@-4)). This is useful, as it allows the system to automatically calculate the margins inset from the bottom and right sides of the container. In Pharo 6, this does not work. The setLeft:right:top:bottom: and setPoint:point: messages both use the min: and max: messages to rearrange the Rectangle so that the smallest numbers get pushed to the top and left. In order to get things to render correctly in my system, I had to change these messages to look like this: setLeft: left right: right top: top bottom: bottom self setPoint: (left@top) point: (right@bottom). setPoint: pt1 point: pt2 origin := pt1. corner := pt2. In place of this: setLeft: left right: right top: top bottom: bottom origin := (left min: right) @ (top min: bottom). corner := (left max: right) @ (top max: bottom). setPoint: pt1 point: pt2 origin := (pt1 x min: pt2 x) @ (pt1 y min: pt2 y). corner := (pt1 x max: pt2 x) @ (pt1 y max: pt2 y). I haven't found any bad side-effects to changing this yet, but is there a reason the Rectangle class was changed? Thanks, Trey

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files.pharo.org no disk space left?
by Stephan Eggermont June 24, 2017

June 24, 2017

I have the impression that files.pharo.org has no space left Stephan

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[ANN] Pharo Sprint June 30
by Marcus Denker June 23, 2017

June 23, 2017

Hi! Next Friday, June 30 will be the next Pharo Sprint! It will start 10:00am. (Local Time Paris). For more infos, see: https://association.pharo.org/event-2492492 Marcus

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Error in ByteArray>>booleanAt:
by Raffaello Giulietti June 23, 2017

June 23, 2017

Hi, the current (Pharo 6) code reads ^(self integerAt: byteOffset size: 1 signed: false) == true so it always returns false, as no integer is identical to true. Instead, it should read ^(self integerAt: byteOffset size: 1 signed: false) ~= 0 implementing the usual convention that 0 maps to false and every other value maps to true. Greetings Raffaello

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Ideas for TechTalks wanted
by Marcus Denker June 23, 2017

June 23, 2017

Hi! We need to setup the dates and topics for the next tech talks, they are always the last tuesday of the month. We have two kinds: -> presentation of a demo with youtube live, then Q&A (one person talks) -> More open discussion just on Discord with Audio Chat about a topic (one person started and guides a discussion) We need topic ideas and people who take the lead role for the second part of the year (August to December). Marcus

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