Vm-dev August 2016

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33 participants
98 discussions

buildspurtrunkvmmakerimage.sh fails on Mac
by tim Rowledge 22 Aug '16

22 Aug '16

I just tried running the vmmaker-build script on my iMac with weirdly bad results. The vm it downloads is the CogSpur.app-16.18.3692 version. Whilst trying to do the update part of the process I had several *very* odd failures where an object in a block was mistaken for nil during a message send. For example in a progress bar update (which I can’t provide a log for since the log got overwritten later) a line (bars at: index) lead to a nil is not indexable halt. Yet in inspecting the prior stackframe the bars object was a perfectly normal array of progress bars. A similar but not identical problem happened during another attempt. Attempting to filein the BuildSqueakSpurTrunkVMMaker.st file failed when the vm exploded with no visible log. Now I’m attempting to repeat that with a new 5.1rc1 vm & already up to date 5.1rc1 image. Which has sorta-worked, in a rather odd manner. It got to the final save and quit but when I start the supposedly prepared image there is a problem with it trying to filein that file. I can’t tell right now if it relates to the manual filein I started or if something got added as a deferred action? Or maybe it’s a side-effect of the filein having a save & quit? Not come across this before. So far as I can tell it did complete the filein, so maybe all is well. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Strange OpCodes: BOMB: Burn Out Memory Banks

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Status of FFI/Alien for X64 Win64
by Nicolas Cellier 22 Aug '16

22 Aug '16

Hi, here are my findings: FFI works on Win64 X64 squeak.stack.spur IF AND ONLY IF compiled with clang. gcc 4.9.3 omit to reserve 32-bytes space for saving the four parameters passed by register, this might be a gcc bug. Basic Alien tests work, but beware, use the unsplit Alien package from Eliot which contains essential changes for X64. The ConfigurationOfAlien for Pharo based on split packages does not have these important changes and will crash the VM. Callback does not work yet. We got an incorrect thunkp passed back in the callbackContext... thunkEntry does not receive the correct value for thunkp. I think the problem is located in FFICallbackThunk initializeX64. For Win64 ABI, caller has to reserve the 32bytes on top of stack for saving the registers parameters. So we are going to need initializeX64Win64, and a CallbackX64Win64 abi ^ 'X64Win64'... That's my understanding so far... This should not require VM changes, but only Alien image side changes. However: 1) I don't feel like generating the binary machine code for initializeX64Win64 2) I'm not even sure that it's possible in 64 bytes. So, I will send the X64 Win64 squeak.stack.spur VM to Marcel and commit a LLP64_v2 branch on github containing all the necessary source to generate it. cheers

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[OpenSmalltalk/opensmalltalk-vm] 58aa5c: Retrieve float register parameters of callback thu...
by GitHub 22 Aug '16

22 Aug '16

Branch: refs/heads/LLP64_v2 Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 58aa5c0cd554fde9ef7142c0b94389f8af1aec84 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/58aa5c0cd554fde9ef… Author: nicolas-cellier-aka-nice <nicolas.cellier.aka.nice(a)gmail.com> Date: 2016-08-22 (Mon, 22 Aug 2016) Changed paths: M platforms/Cross/plugins/IA32ABI/x64win64ia32abicc.c A platforms/Cross/plugins/IA32ABI/x64win64stub.c M platforms/win32/plugins/IA32ABI/Makefile M platforms/win32/plugins/IA32ABI/Makefile.plugin Log Message: ----------- Retrieve float register parameters of callback thunk for Win64 Note: the float registers are retrieved via a function saveFloatRegsWin64 which must lie into another file otherwise C Compiler will detect the parameter mismatch and bark, or worse, optimize the call away. Previously, we did copy the integer param registers into the floating point param registers. This was wrong, the caller has no such hack.

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[OpenSmalltalk/opensmalltalk-vm] e75208: Regenerate source with VMMaker changes for Win64 X...
by GitHub 21 Aug '16

21 Aug '16

Branch: refs/heads/LLP64_v2 Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: e7520813c96590210974ae5d039d774e09e8a2fa https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/e7520813c965902109… Author: nicolas-cellier-aka-nice <nicolas.cellier.aka.nice(a)gmail.com> Date: 2016-08-20 (Sat, 20 Aug 2016) Changed paths: M build.win64x64/squeak.stack.spur/plugins.ext M nsspur64src/vm/cogit.h M nsspur64src/vm/cogitX64.c M nsspur64src/vm/cointerp.c M nsspur64src/vm/cointerp.h M nsspur64src/vm/gcc3x-cointerp.c M nsspur64src/vm/vmCallback.h M nsspursrc/vm/cogit.h M nsspursrc/vm/cogitARMv5.c M nsspursrc/vm/cogitIA32.c M nsspursrc/vm/cogitMIPSEL.c M nsspursrc/vm/cointerp.c M nsspursrc/vm/cointerp.h M nsspursrc/vm/gcc3x-cointerp.c M nsspursrc/vm/vmCallback.h M nsspurstack64src/vm/gcc3x-interp.c M nsspurstack64src/vm/interp.c M nsspurstack64src/vm/vmCallback.h M nsspurstacksrc/vm/gcc3x-interp.c M nsspurstacksrc/vm/interp.c M nsspurstacksrc/vm/vmCallback.h M spur64src/vm/cogit.h M spur64src/vm/cogitX64.c M spur64src/vm/cointerp.c M spur64src/vm/cointerp.h M spur64src/vm/gcc3x-cointerp.c M spur64src/vm/vmCallback.h M spursistasrc/vm/cogit.h M spursistasrc/vm/cogitARMv5.c M spursistasrc/vm/cogitIA32.c M spursistasrc/vm/cogitMIPSEL.c M spursistasrc/vm/cointerp.c M spursistasrc/vm/cointerp.h M spursistasrc/vm/gcc3x-cointerp.c M spursistasrc/vm/vmCallback.h M spursrc/vm/cogit.h M spursrc/vm/cogitARMv5.c M spursrc/vm/cogitIA32.c M spursrc/vm/cogitMIPSEL.c M spursrc/vm/cointerp.c M spursrc/vm/cointerp.h M spursrc/vm/gcc3x-cointerp.c M spursrc/vm/vmCallback.h M spurstack64src/vm/gcc3x-interp.c M spurstack64src/vm/interp.c M spurstack64src/vm/vmCallback.h M spurstacksrc/vm/gcc3x-interp.c M spurstacksrc/vm/interp.c M spurstacksrc/vm/vmCallback.h M src/plugins/ADPCMCodecPlugin/ADPCMCodecPlugin.c M src/plugins/AioPlugin/AioPlugin.c M src/plugins/B2DPlugin/B2DPlugin.c M src/plugins/BitBltPlugin/BitBltPlugin.c M src/plugins/BochsIA32Plugin/BochsIA32Plugin.c M src/plugins/BochsX64Plugin/BochsX64Plugin.c M src/plugins/DSAPrims/DSAPrims.c M src/plugins/FFTPlugin/FFTPlugin.c M src/plugins/FileCopyPlugin/FileCopyPlugin.c M src/plugins/FilePlugin/FilePlugin.c M src/plugins/FloatMathPlugin/FloatMathPlugin.c M src/plugins/GdbARMPlugin/GdbARMPlugin.c M src/plugins/HostWindowPlugin/HostWindowPlugin.c M src/plugins/IA32ABI/IA32ABI.c M src/plugins/InternetConfigPlugin/InternetConfigPlugin.c M src/plugins/JPEGReaderPlugin/JPEGReaderPlugin.c M src/plugins/LargeIntegers/LargeIntegers.c M src/plugins/MIDIPlugin/MIDIPlugin.c M src/plugins/MacMenubarPlugin/MacMenubarPlugin.c M src/plugins/MiscPrimitivePlugin/MiscPrimitivePlugin.c M src/plugins/Mpeg3Plugin/Mpeg3Plugin.c M src/plugins/QuicktimePlugin/QuicktimePlugin.c M src/plugins/ScratchPlugin/ScratchPlugin.c M src/plugins/SerialPlugin/SerialPlugin.c M src/plugins/SocketPlugin/SocketPlugin.c M src/plugins/SoundGenerationPlugin/SoundGenerationPlugin.c M src/plugins/SoundPlugin/SoundPlugin.c M src/plugins/SqueakFFIPrims/ARM32FFIPlugin.c M src/plugins/SqueakFFIPrims/IA32FFIPlugin.c M src/plugins/SqueakFFIPrims/SqueakFFIPrims.c M src/plugins/SqueakFFIPrims/X64SysVFFIPlugin.c M src/plugins/SqueakFFIPrims/X64Win64FFIPlugin.c M src/plugins/StarSqueakPlugin/StarSqueakPlugin.c M src/plugins/UnixOSProcessPlugin/UnixOSProcessPlugin.c M src/plugins/VMProfileLinuxSupportPlugin/VMProfileLinuxSupportPlugin.c M src/plugins/VMProfileMacSupportPlugin/VMProfileMacSupportPlugin.c M src/plugins/Win32OSProcessPlugin/Win32OSProcessPlugin.c M src/plugins/ZipPlugin/ZipPlugin.c M src/vm/cogit.h M src/vm/cogitARMv5.c M src/vm/cogitIA32.c M src/vm/cogitMIPSEL.c M src/vm/cointerp.c M src/vm/cointerp.h M src/vm/cointerpmt.c M src/vm/cointerpmt.h M src/vm/gcc3x-cointerp.c M src/vm/gcc3x-cointerpmt.c M src/vm/vmCallback.h M stacksrc/vm/gcc3x-interp.c M stacksrc/vm/interp.c M stacksrc/vm/vmCallback.h Log Message: ----------- Regenerate source with VMMaker changes for Win64 X64 LLP64 This is from version VMMaker.oscogLLP64-nice.1932 in repository MCHttpRepository location: 'http://smalltalkhub.com/mc/nice/NiceVMExperiments/main' user: '' password: '' The tests for win64 X64 FFI pass with these changes, and a VM compiled with clang ./mvm -f -- CC=x86_64-w64-mingw32-clang Commit: af72cb048798774221c40bf8c59fdeeb8dc26802 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/af72cb048798774221… Author: nicolas-cellier-aka-nice <nicolas.cellier.aka.nice(a)gmail.com> Date: 2016-08-20 (Sat, 20 Aug 2016) Changed paths: M build.win64x64/squeak.stack.spur/plugins.int Log Message: ----------- Disable FloatMathPlugin because it crashes the VM Compare: https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/e7520813c965^...a…

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primitives argument handling
by Ben Coman 21 Aug '16

21 Aug '16

Just checking my understanding of how something works. I think I heard somewhere that its the primitive's job to drop its arguments off the stack. So it would seem(??) that starting with VM1/Image1 having primitive #primX ... if VM2 had modified that primitive to take an optional argument such that Image2 invoked that primitive as #primX: , then Image2 could not be backward compatible with VM, because Image2 would be adding the argument to the stack that would not be removed by VM1. The reason I ask is I was considering having a go at the VM clock improvements issue [1] I logged. As well as implementing the clock skewing algorithm Eliot suggested, I was also wanting to provide Image access to the two clocks used by that algorithm - so the algorithm performance could be monitored from the Image. cheers -ben [1] https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/36

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[Ann] Cuis is now Spur enabled!
by Juan Vuletich 21 Aug '16

21 Aug '16

Hi Folks, I've successfully finished the Spur conversion of Cuis. I was able to merge all required changes to Cuis compiler and make it work in both ObjectMemories. Cuis is now offered in Spur and pre-Spur formats. And the best part is that they share 100% of the source code. There is no forking! This means that there is no extra work in maintaining both flavors. So, we are not leaving anyone behind. It also means that, at deployment, you might chose between better performance and larger memory (with Spur) or smaller footprint and SqueakJS compatibility (with pre-Spur). I've just updated our GitHub repo https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev . Included are Cuis4.2-2906-spur.image and Cuis4.2-2906.image, and, as usual, the whole update stream. I wrote a brief description of the Spur conversion at Documentation/SpurConversion.md, in case you want to reproduce it, or apply it to your own Cuis images. The images seem very stable. Please test them, load your code, and report any issues. This work was enabled by Eliot Miranda and the OpenSmalltalk team who develop Spur, VMMaker and the Spur bootstrap. Thank you folks! I also used Squeak 5 as a reference implementation of Compiler and related stuff. I also want to thank the greater Squeak community for it. Some cleanup is in order. The scaffolding I did for the conversion, including dual Compilers is still in the image. I'll be cleaning it soon. I'll also be able to pay a bit more attention to unrelated suggestions and ongoing discussion at cuis-dev(a)cuis-smalltalk.org Enjoy! Cheers, -- Juan Vuletich www.cuis-smalltalk.org https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev @JuanVuletich

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5.1rc1 Mac package missing some plugins
by tim Rowledge 20 Aug '16

20 Aug '16

I note the list of external plugins in the latest 5.1rc1 Mac package - I see Camera, Croquet, MIDI, Mpeg3,SqueakFFIPrims, SqueakSSL and UnixProcess plugins. No Bochs nor GdbARM plugins, which makes testing the vmmaker stuff a bit trickier. I can accept that we might not want to include these fairly large plugins of very limited audience in the general release but it needs mentioning somewhere so as to make sure Eliot’s build-a-vmmaker script can handle the missing bits. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Manual Writer's Creed: Garbage in, gospel out.

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Google building new OS with Dart
by askoh 20 Aug '16

20 Aug '16

It became news a few days ago. It is called Fuchsia and is meant to run on all devices from IoT on up. The interesting thing is that Dart will be the main language. The developers promise to make Fuchsia run on Raspberry Pi 3 shortly. Since Dart is pretty close to Smalltalk, how can Smalltalk be the GUI for Fuchsia? How can it take advantage of Dart VM? Is this an opportunity for Smalltalk to make an impact? Let's brainstorm. All the best, Aik-Siong Koh -- View this message in context: http://forum.world.st/Google-building-new-OS-with-Dart-tp4912027.html Sent from the Squeak VM mailing list archive at Nabble.com.

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Cog + Pi + OSProcess
by Henrik Johansen 20 Aug '16

20 Aug '16

On the Cog VM shipped with latest Raspbian (3553, plugins 3543) running on a Pi3, after loading OSProcess, evaluating (PipeableOSProcess command: '/bin/echo this is a test') output segfaults the VM, crash.dmp indicating UnixOSProcessAccessor >> #forkAndExec: <snip> The shipped interpreter vm (4.10.2 platform rev2614) works with OSProcess, so I can use that instead, but has anyone encountered this already and happen to have a plugin built for Cog/Pi that allows command: use?. Cheers, Henry PS. Doing the layman's hack (copying over and renaming so.AioPlugin/so.UnixOSProcessPlugin from interpreter vm) does not work very well, no more crashes, but the PipeableOSProcess created has pid nil, status notYetRunning and an empty string output, so I assume a Cog-specific variant is needed.

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[OpenSmalltalk/opensmalltalk-vm] 6666ed: HostWindowPlugin not implemented for Linux 64bit
by GitHub 20 Aug '16

20 Aug '16

Branch: refs/heads/fniephaus/host-window-plugin Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 6666edcf648bdf5e45140d27bcd27d355e68f6a4 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/6666edcf648bdf5e45… Author: Fabio Niephaus <code(a)fniephaus.com> Date: 2016-08-20 (Sat, 20 Aug 2016) Changed paths: M build.linux64x64/newspeak.cog.spur/plugins.int M build.linux64x64/newspeak.sista.spur/plugins.int M build.linux64x64/newspeak.stack.spur/plugins.int M build.linux64x64/squeak.cog.spur.immutability/plugins.int M build.linux64x64/squeak.cog.spur/plugins.int M build.linux64x64/squeak.stack.spur/plugins.int Log Message: ----------- HostWindowPlugin not implemented for Linux 64bit

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Vm-dev August 2016