Vm-dev April 2011

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36 participants
176 discussions

Add primitiveMillisecondClockMask? (was: The Trunk: Kernel-ar.564.mcz)
by David T. Lewis 14 Apr '11

14 Apr '11

On Thu, Apr 07, 2011 at 09:04:41AM +0000, commits(a)source.squeak.org wrote: > > Andreas Raab uploaded a new version of Kernel to project The Trunk: > http://source.squeak.org/trunk/Kernel-ar.564.mcz > > ==================== Summary ==================== > > Name: Kernel-ar.564 > Author: ar > Time: 7 April 2011, 11:04:21.248 am > UUID: 32ecb9c9-177a-ce45-9c1c-a3714c801929 > Ancestors: Kernel-nice.563 > > Fix computation of Time>>milliseconds:since: which would compute incorrect deltas upon clock overflow. > > =============== Diff against Kernel-nice.563 =============== > > Item was added: > + ----- Method: Time class>>millisecondClockMask (in category 'general inquiries') ----- > + millisecondClockMask > + "The VM mask for the max. millisecond clock value. > + This should be primitive but it ain't so it's copied inline from the Interpreter." > + ^16r1FFFFFFF! > Agreed, the millisecondClockMask should be available from a primitive. Should I make it so? Dave

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Re: [squeak-dev] Add primitiveMillisecondClockMask? (was: The Trunk: Kernel-ar.564.mcz)
by David T. Lewis 14 Apr '11

14 Apr '11

On Wed, Apr 13, 2011 at 11:57:32AM -0700, Eliot Miranda wrote: > On Wed, Apr 13, 2011 at 11:09 AM, David T. Lewis <lewis(a)mail.msen.com>wrote: > > > On Thu, Apr 07, 2011 at 09:04:41AM +0000, commits(a)source.squeak.org wrote: > > > > > > Andreas Raab uploaded a new version of Kernel to project The Trunk: > > > http://source.squeak.org/trunk/Kernel-ar.564.mcz > > > > > > ==================== Summary ==================== > > > > > > Name: Kernel-ar.564 > > > Author: ar > > > Time: 7 April 2011, 11:04:21.248 am > > > UUID: 32ecb9c9-177a-ce45-9c1c-a3714c801929 > > > Ancestors: Kernel-nice.563 > > > > > > Fix computation of Time>>milliseconds:since: which would compute > > incorrect deltas upon clock overflow. > > > > > > =============== Diff against Kernel-nice.563 =============== > > > > > > Item was added: > > > + ----- Method: Time class>>millisecondClockMask (in category 'general > > inquiries') ----- > > > + millisecondClockMask > > > + "The VM mask for the max. millisecond clock value. > > > + This should be primitive but it ain't so it's copied inline from > > the Interpreter." > > > + ^16r1FFFFFFF! > > > > > > > Agreed, the millisecondClockMask should be available from a primitive. > > Should I make it so? > > > > Personally I would much rather see us move to the 64-bit millisecond clock I > implemented for Cog. This renders the whole clock roll-over issue moot. > Understood, though my question was intended to be about the existing primitiveMillisecondClock, which will presumably be retained for a few more years. Andreas committed a fix for a rather nasty bug related to a constant in the image being out of sync with a constant in the VM. The method comment noted that "This should be primitive but it ain't" so I was just offering to add the primitive and update Squeak trunk to use it when available. Dave

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64Bit image on Squeak Cocoa 5.7.4 VM
by Tobias Pape 14 Apr '11

14 Apr '11

Hi — I've just traced my first 64bit image using the SystemTracer. The ckformat utility reports the Version number as 68002 (i.e. really a 64bit image). As far as I know, the 5.7.4 Cocoa Vm is a Combined (or how to call it) 32bit/64bit vm, but it tells me: This interpreter (vers. 0) cannot read image file (vers. 68002). Press CR to quit... which is a bit dissapointing. Did I misinterpret the line in the Menu bar that says ‘Squeak VM Host 64/32bits’? So Long, -Tobias

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SLANG supported methods
by Mariano Martinez Peck 13 Apr '11

13 Apr '11

Sorry for sending too many emails...but I am curious about a lot of things ;) Suppose I am coding in VMMaker or a Plugin... how can I know which messages VMMAker will know to translate to C and which ones don't? In other words...how can I see what is exactly the SLANG subset of Smalltalk ? This wiki page says something: http://wiki.squeak.org/squeak/2267 But I am not sure if it is updated. Moreover, I guess this can be written somewhere in the VMMaker code.. Thanks in advance, -- Mariano http://marianopeck.wordpress.com

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Newbie questions about non-static, static and EXPORT
by Mariano Martinez Peck 13 Apr '11

13 Apr '11

Hi folks, I am trying to understand them. What I understood so that is that from SLANG we can say: <export: true> ----> it will add the keyword EXPORT(sqInt) functXX(); <api> ----> it WONT put the static prefix ->> (sqInt) funcXXX() if nothing is said -> it puts the static ->> static (sqInt) functXXX() If I understood correctly, static functions are not callable outside of the C file they are defined in. So, if you don't put static, then they are callable. I am correct with all that ? So..first question, why we need the this ? when I should declare a function/method as API ? is it possible that this is when plugins need to call a function from the VM ? Second, when should I need to declare a method/function as EXPORT ? Are there any other reason that being able to call them from GDB ? Third, why there are methods which do not put the <export: true> but in fact are added in #requiredMethodNames and hence exported. Why they cannot have the <export: true> instead of being hardcoded there? Thanks a lot in advance, -- Mariano http://marianopeck.wordpress.com

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VM Maker: CMakeVMMaker-MarianoMartinezPeck.85.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 13 Apr '11

13 Apr '11

Mariano Martínez Peck uploaded a new version of CMakeVMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/CMakeVMMaker-MarianoMartinezPeck.85.mcz ==================== Summary ==================== Name: CMakeVMMaker-MarianoMartinezPeck.85 Author: MarianoMartinezPeck Time: 13 April 2011, 7:08:54 pm UUID: b9cc4c5f-a2bb-4673-aaf8-598ebf8abbee Ancestors: CMakeVMMaker-EstebanLorenzano.84 Fixed the flags for -DNDEBUG and DDEBUGVM. Both should be 0 for release and 1 for debug. If someone can check...

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'-DNDEBUG=0' and '-DDEBUGVM=1'
by Mariano Martinez Peck 13 Apr '11

13 Apr '11

Hi Eliot. I am not sure if I understand correctly these flags, and if I do, then I think the CMake configurations are wrong. First, what are those flags intended for? Which should be tuned on and which one off for both, release and debug ? In Unix/Windows conf, onlt for release, these are set: -DDEBUGVM=0 -DNDEBUG Mac Carbon release -DDEBUGVM=0 -DNDEBUG=1 Mac Cocoa Cog (CocoaIOSCogConfig) debug '-DNDEBUG=1' '-DDEBUGVM=0' Mac Cocoa Cog (CocoaIOSCogConfig) release '-DNDEBUG=1' '-DDEBUGVM=0' Mac Cocoa Cog MT debug -DNDEBUG=0' '-DDEBUGVM=1' Mac Cocoa Cog MT release '-DNDEBUG=0' '-DDEBUGVM=1' So...this is a mess. Mac Cocoa Cog MT, have the same for both release and debug. Is this correct? Mac Cocoa Cog, idem Mac Cocoa Cog MT What is worst, Mac Cocoa Cog MT is the opposite of Mac Cocoa Cog so...i have no idea how this should be, but sounds strange for me Cheers -- Mariano http://marianopeck.wordpress.com

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XCode project settings do not reflect CMake
by Mariano Martinez Peck 13 Apr '11

13 Apr '11

Hi. I just want to know if this is normal/expected. When I use CMake to generate a XCode project, i.e, "cmake -G Xcode", the settings DO NOT match the makefiles that were generated by CMake. For example, in the CMakeFiles.txt I have this line: add_definitions(-arch i386 -mmacosx-version-min=10.5 -g3 -O0 -msse3 -fvisibility=hidden -funroll-loops -fasm-blocks -finline-functions -mfpmath=sse -march=pentium-m -falign-functions=16 -fno-gcse -fno-cse-follow-jumps -std=gnu99 -DBUILD_FOR_OSX -DUSE_INLINE_MEMORY_ACCESSORS -DLSB_FIRST -DHAVE_SYS_TIME_H -DHAVE_NANOSLEEP -DNDEBUG=0 -DDEBUGVM=1 -DCOGMTVM=1 -DUSE_GLOBAL_STRUCT=0 -DBASE_HEADER_SIZE=4 -DCOGVM) Notice the "-g3 -O0". Now..if I open XCode, right click on the terget, "get info", "build" tab, and look the "Optimization Level" it says -Os. ALWAYS. It doesn't matter what is in CMake, there it always says -Os. Moreever, changing that, doesn't have any impact. The optimization level is the want defined in CMake. Conclusion: the XCode project is compiling with the makefiles generated from CMake, but the settings of the projects are not correctly set ? Is this expected ? I am the only one noticing this ? Thanks -- Mariano http://marianopeck.wordpress.com

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Re: [Vm-dev] XCode project settings do not reflect CMake
by Mariano Martinez Peck 13 Apr '11

13 Apr '11

On Wed, Apr 13, 2011 at 5:44 PM, Stefan Marr <Stefan.Marr(a)vub.ac.be> wrote: > > On 13 Apr 2011, at 17:39, Mariano Martinez Peck wrote: > > > > > Conclusion: the XCode project is compiling with the makefiles generated > from CMake, but the settings of the projects are not correctly set ? Is this > expected ? I am the only one noticing this ? > XCode projects usually have debug and release targets, do the generated > ones also make that differentiation? > Yes, it is done in CMake with this line: set(CMAKE_CONFIGURATION_TYPES Debug Release) But for me...it seems too much magic. And in fact, if I inspect the settings with both targets, they have the same settings. Thanks > > > > -- > Stefan Marr > Software Languages Lab > Vrije Universiteit Brussel > Pleinlaan 2 / B-1050 Brussels / Belgium > http://soft.vub.ac.be/~smarr > Phone: +32 2 629 2974 > Fax: +32 2 629 3525 > > -- Mariano http://marianopeck.wordpress.com

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VM Maker: CMakeVMMaker-EstebanLorenzano.84.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 13 Apr '11

13 Apr '11

Esteban Lorenzano uploaded a new version of CMakeVMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/CMakeVMMaker-EstebanLorenzano.84.mcz ==================== Summary ==================== Name: CMakeVMMaker-EstebanLorenzano.84 Author: EstebanLorenzano Time: 13 April 2011, 10:29:51 am UUID: 623252c8-25ef-4fcf-b88b-6af5ec7baf02 Ancestors: CMakeVMMaker-MarianoMartinezPeck.83 -added IA32ABI plugin (it will require new Alien packages) -changed compilation visibility from -fvisibility=hidden to default. This is maybe temporal, maybe it is not... I don't like the result coupling between plugins and vm (possible a lot, since all symbols are public), but unix vm works that way too...

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Vm-dev April 2011