Vm-dev July 2016

vm-dev@lists.squeakfoundation.org

34 participants
214 discussions

Why is the method context size fixed to two magical numbers?
by Max Leske 07 Jul '16

07 Jul '16

Hi, I’ve been looking at the code that creates new method contexts (in the image and in the VM) and I can’t figure out why it would be beneficial to fix the size of the context to (currently) 16 (22) or 56 (62) bytes. Clément says in one of his blog entries that this if for performance reasons but I don’t see where the performance gain is (the Bluebook doesn’t mention this either). At allocation time the VM simply takes the number of bytes to allocate from the “large context flag”. Maybe the performance gain comes from the idea that the size does not have to be calculated? But then I ask: why not simply store the frame size instead of this weird flag? Cheers, Max

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Re: [OpenSmalltalk/opensmalltalk-vm] Prepare Cocoa VM for High-DPI (#22)
by Eliot Miranda 06 Jul '16

06 Jul '16

Hi Tobias, I'm confused by https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/builds/142601096. Who do I see the errors? The red link to the right simply points back to the same page. On Tue, Jul 5, 2016 at 2:56 PM, Tobias Pape <notifications(a)github.com> wrote: > > - Works for both OpenGL and CoreGraphics backends (Why do we have > both?) > - Needs new abstractions for 'squeak-screen-size' and > 'squeak-mouse-position' in both backends/view. Is provided. > > ------------------------------ > You can view, comment on, or merge this pull request online at: > > https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22 > Commit Summary > > - Prepare Cocoa VM for High-DPI > > File Changes > > - *M* platforms/iOS/vm/Common/Classes/sqSqueakScreenAndWindow.m > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-0> > (6) > - *M* platforms/iOS/vm/OSX/Squeak-Info.plist > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-1> > (2) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXApplication+events.m > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-2> > (4) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXApplication.m > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-3> > (3) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXCGView.h > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-4> > (2) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXCGView.m > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-5> > (130) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.h > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-6> > (2) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-7> > (54) > - *M* platforms/iOS/vm/OSX/sqSqueakOSXView.h > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-8> > (3) > - *M* platforms/iOS/vm/iPhone/Classes/SqueakUIView.h > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-9> > (2) > - *M* platforms/iOS/vm/iPhone/Classes/SqueakUIView.m > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22/files#diff-10> > (8) > > Patch Links: > > - https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22.patch > - https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22.diff > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > <https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22>, or mute the > thread > <https://github.com/notifications/unsubscribe/APHa0M_T9AW0p-vuZ8xlqmDkPUo9V7…> > . > -- _,,,^..^,,,_ best, Eliot

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[OpenSmalltalk/opensmalltalk-vm]
by GitHub 06 Jul '16

06 Jul '16

Branch: refs/heads/krono/osx-highdpi Home: https://github.com/OpenSmalltalk/opensmalltalk-vm

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[OpenSmalltalk/opensmalltalk-vm] 5e1415: Prepare Cocoa VM for High-DPI
by GitHub 06 Jul '16

06 Jul '16

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 5e14158627fb2cc06ee6bdccd96a0f3eb4bc991b https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/5e14158627fb2cc06e… Author: Tobias Pape <tobias(a)netshed.de> Date: 2016-07-05 (Tue, 05 Jul 2016) Changed paths: M platforms/iOS/vm/Common/Classes/sqSqueakScreenAndWindow.m M platforms/iOS/vm/OSX/Squeak-Info.plist M platforms/iOS/vm/OSX/sqSqueakOSXApplication+events.m M platforms/iOS/vm/OSX/sqSqueakOSXApplication.m M platforms/iOS/vm/OSX/sqSqueakOSXCGView.h M platforms/iOS/vm/OSX/sqSqueakOSXCGView.m M platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.h M platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m M platforms/iOS/vm/OSX/sqSqueakOSXView.h M platforms/iOS/vm/iPhone/Classes/SqueakUIView.h M platforms/iOS/vm/iPhone/Classes/SqueakUIView.m Log Message: ----------- Prepare Cocoa VM for High-DPI - Works for both OpenGL and CoreGraphics backends (Why do we have both?) - Needs new abstractions for 'squeak-screen-size' and 'squeak-mouse-position' in both backends/view. Is provided. Commit: df90dec754e10e5c57246e1ad8f75550f559f8cb https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/df90dec754e10e5c57… Author: Tobias Pape <krono(a)users.noreply.github.com> Date: 2016-07-06 (Wed, 06 Jul 2016) Changed paths: M platforms/iOS/vm/Common/Classes/sqSqueakScreenAndWindow.m M platforms/iOS/vm/OSX/Squeak-Info.plist M platforms/iOS/vm/OSX/sqSqueakOSXApplication+events.m M platforms/iOS/vm/OSX/sqSqueakOSXApplication.m M platforms/iOS/vm/OSX/sqSqueakOSXCGView.h M platforms/iOS/vm/OSX/sqSqueakOSXCGView.m M platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.h M platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m M platforms/iOS/vm/OSX/sqSqueakOSXView.h M platforms/iOS/vm/iPhone/Classes/SqueakUIView.h M platforms/iOS/vm/iPhone/Classes/SqueakUIView.m Log Message: ----------- Merge pull request #22 from OpenSmalltalk/krono/osx-highdpi Prepare Cocoa VM for High-DPI Compare: https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/1bbf2d2e33a4...df…

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[OpenSmalltalk/opensmalltalk-vm] 1bbf2d: Let the validfp macro in sqWin32Backtrace be X64 c...
by GitHub 06 Jul '16

06 Jul '16

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 1bbf2d2e33a44806a614467fe02f593deab4b40d https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/1bbf2d2e33a44806a6… Author: Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com> Date: 2016-07-06 (Wed, 06 Jul 2016) Changed paths: M platforms/win32/vm/sqWin32Backtrace.c Log Message: ----------- Let the validfp macro in sqWin32Backtrace be X64 compatible Note: sizeof(fp) is either 4 for IA32 or 8 for X64, and sizeof(fp)-1 is either 3 or 7, so fp&(sizeof(fp)-1) checks either that last 2 bits are zero in IA32, or last 3 bits are zero on X64 in other words, it checks that fp is correctly aligned.

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[OpenSmalltalk/opensmalltalk-vm] 63c55c: Get frame pointer (fp) from RBP and thread informa...
by GitHub 06 Jul '16

06 Jul '16

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 63c55cf4a3cc91d28470d339e5d886961297a7d9 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/63c55cf4a3cc91d284… Author: Nicolas Cellier <nicolas.cellier(a)sirehna.com> Date: 2016-07-06 (Wed, 06 Jul 2016) Changed paths: M platforms/win32/vm/sqWin32Backtrace.c Log Message: ----------- Get frame pointer (fp) from RBP and thread information block (tib) from GS[0x30] in sqWin32Backtrace.c for X64 -- this deserve a review from ABI experts --

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[OpenSmalltalk/opensmalltalk-vm] 1be236: Handle register dump and stack pointer backtrace f...
by GitHub 06 Jul '16

06 Jul '16

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 1be236f68ee7e0288bd0a58b09e66c9db268f5e9 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/1be236f68ee7e0288b… Author: Nicolas Cellier <nicolas.cellier(a)sirehna.com> Date: 2016-07-06 (Wed, 06 Jul 2016) Changed paths: M platforms/win32/vm/sqWin32Main.c Log Message: ----------- Handle register dump and stack pointer backtrace for X64 in sqWin32Main.c

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[OpenSmalltalk/opensmalltalk-vm] 168519: The browerWindow in saWin32Main.c is a pointer: it...
by GitHub 06 Jul '16

06 Jul '16

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 16851926418268da723b2958d4c3c0a274c13c37 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/16851926418268da72… Author: Nicolas Cellier <nicolas.cellier(a)sirehna.com> Date: 2016-07-06 (Wed, 06 Jul 2016) Changed paths: M platforms/win32/vm/sqWin32Main.c Log Message: ----------- The browerWindow in saWin32Main.c is a pointer: it needs to be at least a long - which works for LP32 ILP32 LP64 and ILP64 Note: for LLP64 this should be long long, so atoll but we do not support it yet.

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Loading VMMaker
by Yoshiki Ohshima 06 Jul '16

06 Jul '16

Hi, Just to refresh my skill on compiling the Squeak VM (I'd like to play with Kinect; I found some efforts like: http://tecnodacta.com.ar/gira/ but want to make a plugin that is suitable for my need.) Let us say I'd like to compile a VM and my plugins on Mac, what are the right steps? (I had some experiences with VMMaker but that was before I need to specify Interpreter class name in the VMMakerTool, for example. I added VMMaker repository in the Monticello browser, and opened it. As trying to just load VMMaker shows a warning of missing FFI constants, I turned to 'update' and load update-dtl.17.mcm. Is this a right thing to do? But then, trying to load update-dtl.17.mcm onto the VM and image in the 5.0 all in one package, the VM crashes. Do you see this? I'd like to get the files and image set up so that I can compile an external plugin, preferably for Cog/Spur. Some up to date guidance would be greatly appreciated. Thanks! -- -- Yoshiki

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Re: [Vm-dev] VM Maker: VMMaker.oscog-eem.1897.mcz
by Eliot Miranda 05 Jul '16

05 Jul '16

On Mon, Jul 4, 2016 at 4:22 PM, <commits(a)source.squeak.org> wrote: > > Eliot Miranda uploaded a new version of VMMaker to project VM Maker: > http://source.squeak.org/VMMaker/VMMaker.oscog-eem.1897.mcz > > ==================== Summary ==================== > > Name: VMMaker.oscog-eem.1897 > Author: eem > Time: 4 July 2016, 4:21:58.850141 pm > UUID: c3215ac9-9da7-4d9d-9f40-a6ef2eaaa861 > Ancestors: VMMaker.oscog-cb.1896 > > Fix genJumpIsSmallIntegerValue:scratch: for all memory managers and hence > fix SmallInteger minVal // -1. > Damn, I missed this: - January 22 <https://en.wikipedia.org/wiki/January_22> – In this date's issue of the journal *Engineering*, the word "computer <https://en.wikipedia.org/wiki/Computer>", is first used to refer to a mechanical calculation device, according to the *Oxford English Dictionary*.[1] <https://en.wikipedia.org/wiki/1897#cite_note-1> > > =============== Diff against VMMaker.oscog-cb.1896 =============== > > Item was changed: > ----- Method: > CogObjectRepresentationFor32BitSpur>>genJumpIsSmallIntegerValue:scratch: > (in category 'compile abstract instructions') ----- > genJumpIsSmallIntegerValue: aRegister scratch: scratchReg > "Generate a test for aRegister containing an integer value in the > SmallInteger range, and a jump if so, answering the jump. > c.f. Spur32BitMemoryManager>>isIntegerValue:" > <returnTypeC: #'AbstractInstruction *'> > ^cogit > MoveR: aRegister R: scratchReg; > + LogicalShiftLeftCq: 1 R: scratchReg; > - ArithmeticShiftRightCq: 1 R: scratchReg; > XorR: aRegister R: scratchReg; > JumpGreaterOrEqual: 0! > > Item was changed: > ----- Method: > CogObjectRepresentationFor64BitSpur>>genJumpIsSmallIntegerValue:scratch: > (in category 'compile abstract instructions') ----- > genJumpIsSmallIntegerValue: aRegister scratch: scratchReg > "Generate a test for aRegister containing an integer value in the > SmallInteger range, and a jump if so, answering the jump. > c.f. Spur64BitMemoryManager>>isIntegerValue:" > <returnTypeC: #'AbstractInstruction *'> > ^cogit > MoveR: aRegister R: scratchReg; > + ArithmeticShiftRightCq: 63 - objectMemory numTagBits R: > scratchReg; > - ArithmeticShiftRightCq: 64 - objectMemory numTagBits R: > scratchReg; > AddCq: 1 R: scratchReg; > AndCq: 1 << (objectMemory numTagBits + 1) - 1 R: > scratchReg; "sign and top numTags bits must be the same" > CmpCq: 1 R: scratchReg; > JumpLessOrEqual: 0! > > Item was changed: > ----- Method: > CogObjectRepresentationForSqueakV3>>genJumpIsSmallIntegerValue:scratch: (in > category 'compile abstract instructions') ----- > genJumpIsSmallIntegerValue: aRegister scratch: scratchReg > "Generate a test for aRegister containing an integer value in the > SmallInteger range, and a jump if so, answering the jump. > c.f. ObjectMemory>>isIntegerValue:" > <returnTypeC: #'AbstractInstruction *'> > ^cogit > MoveR: aRegister R: scratchReg; > + LogicalShiftLeftCq: 1 R: scratchReg; > - ArithmeticShiftRightCq: 1 R: scratchReg; > XorR: aRegister R: scratchReg; > JumpGreaterOrEqual: 0! > > -- _,,,^..^,,,_ best, Eliot

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Vm-dev July 2016