Vm-dev December 2010

vm-dev@lists.squeakfoundation.org

42 participants
109 discussions

a problem with alien, primitive fail (primFFICallResult:withArguments:)
by Esteban Lorenzano 28 Dec '10

28 Dec '10

Hi, I'm trying to get the Alien ObjectiveC bridge to work, and I'm having a problem (right now no cog, just cocoa vm 5.7 with "regular" alien, NewspeakI32ABIPlugin), and I'm having a problem on sending a message with this form: someAlien primFFICallResult: resultAlien withArguments: {anAlien. aLargePositiveInteger} so... it is answering primitiveFail (code 3), because the third argument is bad taken when converting... the primitive does this path: callIA32IntegralReturn, ... long v = interpreterProxy->signed32BitValueOf(arg); ... value = (((byteAt((oop + (BASE_HEADER_SIZE)) + 0)) + ((byteAt((oop + (BASE_HEADER_SIZE)) + 1)) << 8)) + ((byteAt((oop + (BASE_HEADER_SIZE)) + 2)) << 16)) + ((byteAt((oop + (BASE_HEADER_SIZE)) + 3)) << 24); value here is negative, and of course, it throws an error. So... anybody has a clue of whats wrong? I know the number is actually a LargePositiveInteger, so it should be ok, and pass... so any idea? Cheers, Esteban

2 3

What a cruel world!
by Igor Stasenko 28 Dec '10

28 Dec '10

Hi, i trying to discover which directories and in what order mac VM looking for extrnal plugin module, and to make sure that it finds my module, i renamed library FloatMathPlugin.dylib to FloatMathPluginz.dylib and correspondingly in primitive invocation, i put: primitiveExp "Answer E raised to the receiver power. Optional. See Object documentation whatIsAPrimitive." <primitive: 'primitiveExp' module: 'FloatMathPluginz'> self isNaN ifTrue:[ ^self]. now i found that module is loaded, but primitive doesn't work.. entering gdb, i found following cruel line in callInitializersIn(): if(strncmp(moduleName, module->name, strlen(module->name)) != 0) { DPRINTF(("ERROR: getModuleName returned %s (expected: %s)\n", moduleName, module->name)); return 0; } where moduleName is a result from call module's 'getModuleName' function, which is obviously returns 'FloatMathPlugin' instead of 'FloatMathPluginz', and therefore comparison fails, and module fails to initialize :( Btw, i would find this thing much faster, if somebody wouldn't put following in the beginning of sqNamedPrims.c : #undef DEBUG <<<< whyyyy?!?!? #undef DPRINTF #ifdef DEBUG #define DPRINTF(what) printf what #else #define DPRINTF(what) #endif -- Best regards, Igor Stasenko AKA sig.

2 4

Confused by FFI at Mac & Cog
by Igor Stasenko 27 Dec '10

27 Dec '10

Hi, I am trying to figure out, how to build FFI plugin on macs for cog vm. the platforms/Mac\ OS/plugins/SqueakFFIPrims contains following files: Info-SqueakFFIPlugin__Upgraded_.plist SqueakFFI.xcodeproj.zip SqueakFFIPrims.proj.xml ppc-darwin-Carbon-UI.c ppc-darwin-asm-MacIntel.S ppc-global.h resources sqMacFFI.s sqMacFFIPPC.c sqMacIntel-Win32.c x86-sysv-MacIntel.c x86-sysv-asm-MacIntel.S something tells me that i don't need to compile ppc* files, because Cog doesn't works on that arch anyways.. so, i tried to use sqMacIntel-Win32.c and failed.. then tried to use x86-sysv-MacIntel.c and it fails to compile with same error(s): /platforms/Mac OS/plugins/SqueakFFIPrims/x86-sysv-MacIntel.c:127: error: ‘FFICallTypeCDecl’ undeclared (first use in this function) /platforms/Mac OS/plugins/SqueakFFIPrims/x86-sysv-MacIntel.c:128: error: ‘FFICallTypeApi’ undeclared (first use in this function) These constants are defined only in FFIConstants shared pool.. and somehow they should be made available to these .c files.. But our beloved VMMaker's code generator don't generating headers which can be included by other .c files, and all class var constants are just printed inside a body of generated .c file , like SqueakFFIPrims.c which means that these constants should be defined externally manually somewhere. So, it seems like FFI is broken for Mac+Cog. P.S. Eliot's default .xcodeproj for FFI plugin are not builds because its not including one of the files above, which making a build complete (otherwise you got undefined symbols). Please shed a light, if FFI for Mac + Cog were in working state at some day? Or i doing something completely wrong? Of course i can disable it from build and forget about it, since we have new stuff coming (of course if Santa decide that we were good boys), but still.. -- Best regards, Igor Stasenko AKA sig.

4 8

Building BochsIA32Plugin
by Igor Stasenko 27 Dec '10

27 Dec '10

Hi, Eliot you are the only one, who probably could answer this question in processors/IA32/bochs/conf.COG i found following: CPATH="/sw/include" LDFLAGS="-L/sw/lib" this looks like a dependency, which requred by Bochs code simulator to build.. what is it, and why it is needed? as i can see, you using only following parts of it: - cpu, fpu and disasm which actually a libs, and its quite easy to build them without too much ad-hoc preparations. So, i wonder, what if i just include all source files in these dirs as a source files for boch's plugin lib, and with proper compiler flags and defines, simply compile them into single library using plain CMakeLists.txt file, without scary monstrosities like configure scripts (the only product of it, which is really needed is generated config.h header). Of course, i could instruct cmake to run configure script.. or conf.COG .. whatever. Just wanna be able to build this plugin without requiring user's attention. -- Best regards, Igor Stasenko AKA sig.

2 1

VM Maker: CMakeVMMaker-Igor.Stasenko.6.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 26 Dec '10

26 Dec '10

Igor Stasenko uploaded a new version of CMakeVMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/CMakeVMMaker-Igor.Stasenko.6.mcz ==================== Summary ==================== Name: CMakeVMMaker-Igor.Stasenko.6 Author: Igor.Stasenko Time: 26 December 2010, 8:33:45 am UUID: 1d956a34-be85-4876-8b0c-9fd1e49dc9e8 Ancestors: CMakeVMMaker-Igor.Stasenko.5 - moved a per-plugin specific code from plugins extension methods to configuration class, to avoid package dependency from 3rd-party plugins

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Re: FFI crashes VM on Linux (was: Z3950 on OSX: module yaz3 not found)
by laurent laffont 26 Dec '10

26 Dec '10

Which VM have you used ? I cross post to vm-dev list. Laurent. On Fri, Dec 24, 2010 at 3:54 AM, Hernán Morales Durand < hernan.morales(a)gmail.com> wrote: > Laurent, not much progress here :( > I just reproduced the Unix VM crash. First I've linked the library so > we do not have to change every module name call > > user@ubuntu:/usr/lib$ ln -T -s /usr/lib/libyaz.so.3.0.0 yaz > > and I've tried to execute the library tracer in the shell script > > ltrace -f -l /usr/lib/libyaz.so.3.0.0 -o out.txt "$BASE/squeakvm" \ > -plugins "$BASE" \ > -encoding latin1 \ > -vm-display-X11 \ > "$ROOT/Contents/Resources/pharo.image" > > but it crash the VM too with an unhandled exception even before the > GUI is displayed. > What I've observed is that every FFI call which receives an > ExternalStructure as parameter kills the VM. This is weird because > this doesn't happen in the Windows VM. I ran this little script I use > to debug the library > > | conn lib rs rsSize records | > lib := Z3950FFILibrary default. > conn := lib > createConnectionTo: #Alabama asZ3950Server hostName > port: 7090. > lib createOptions. > lib > setConnection: conn > optionName: 'preferredRecordSyntax' > optionValue: 'USMARC'. > rs := lib > searchPqf: conn > query: '@attr 1=1003 collins'. > rsSize := lib resultSetSize: rs. > rsSize > 0 > ifFalse: [ 'no results' ]. > records := Array new: rsSize. > 0 to: rsSize - 1 do: [: pos | > record := lib resultSetRecord: rs position: pos. > record isNil not > ifTrue: [ > records > at: pos + 1 > put: ( lib > getRecord: record > function: 'render; charset=marc8, > iso8859-1' > length: nil ). ] ]. > records > > and the the doIt just hangs the VM, the console output going through > the Debugger is the following: > > Segmentation fault > > -1370902312 ContextPart>doPrimitive:method:receiver:args: > -1370902404 ContextPart>tryPrimitiveFor:receiver:args: > -1370902788 ContextPart>send:to:with:super: > -1370902896 ContextPart>send:super:numArgs: > -1370902988 InstructionStream>interpretExtension:in:for: > -1370903080 InstructionStream>interpretNextInstructionFor: > -1370903172 ContextPart>step > -1370903280 Process>step > -1370903372 Process>step: > -1370920392 Debugger>send > -1370937720 PluggableButtonMorph>performAction > -1370937812 PluggableButtonMorph>mouseUp: > -1370937996 SequenceableCollection>do: > -1370957140 PluggableButtonMorph>mouseUp: > -1370957232 Morph>handleMouseUp: > -1370957324 MouseButtonEvent>sentTo: > -1370957416 Morph>handleEvent: > -1370957584 Morph>handleFocusEvent: > -1370957676 HandMorph>sendFocusEvent:to:clear: > -1370957768 PasteUpMorph>becomeActiveDuring: > -1370957860 BlockClosure>on:do: > -1370957992 PasteUpMorph>becomeActiveDuring: > -1370958084 HandMorph>sendFocusEvent:to:clear: > -1370958260 HandMorph>sendEvent:focus:clear: > -1370958352 HandMorph>sendMouseEvent: > -1370958444 HandMorph>handleEvent: > -1370966728 HandMorph>processEvents > -1370966836 WorldState>doOneCycleNowFor: > -1370966952 SequenceableCollection>do: > -1370967044 WorldState>handsDo: > -1370967136 WorldState>doOneCycleNowFor: > -1370969680 WorldState>doOneCycleFor: > -1370969772 PasteUpMorph>doOneCycle > -1383611064 >spawnNewProcess > -1383611192 BlockClosure>newProcess > Aborted > > it would be nice if someone could tell something about debugging FFI > calls, or just any idea to try. > Cheers, > > Hernán > > 2010/12/23 laurent laffont <laurent.laffont(a)gmail.com>: > > Hi, > > I have unmangled all function names. Image also crashes when evaluating > the > > Kant test. (but this time I get ILLEGAL INSTRUCTION on strace). I've > tried > > with Cog and the VM in the Seaside OneClick. > > I've uploaded the modified packages on squeaksource > > here: http://www.squeaksource.com/LaurentLSandbox.html (you can use > > Z3950Slice to load all at once). > > Laurent > > > > > > > > On Thu, Dec 23, 2010 at 1:57 AM, Hernán Morales Durand > > <hernan.morales(a)gmail.com> wrote: > >> > >> Hi Laurent, > >> > >> Thanks for the feedback, I've uploaded the repository with the missing > >> method but I cannot reproduce the crash in Windows. Have you unmangled > >> every function name tested? Are you running just the > >> Z3950FFILibraryTest? Notice the Z3950FFIServerLibraryTest tests are > >> performed against a Z39.50 server running in local host, otherwise > >> will fail (however that shouldn't crash the VM), so you may want to > >> run only the Z3950FFILibraryTest suite. If you or anyone want a local > >> Zebra server for Win32 - although most configuration files should work > >> with other platforms - for testing purposes please let me know. > >> > >> Does the Kant test crash the VM too? > >> > >> Z3950Client new > >> server: #Acadia; > >> query: ( Z3950Query new author: 'Kant' ). > >> > >> (see http://67.222.12.200:8889/WebOpus/52 for sample successful > results) > >> > >> I will set up a Linux box tomorrow and try to reproduce there. > >> Cheers, > >> > >> 2010/12/22 laurent laffont <laurent.laffont(a)gmail.com>: > >> > Hi Hernan, > >> > finally I switch back to Linux to make it work, OSX gives me > headaches. > >> > So on linux the yaz module is found. I get the "Unable to find > function > >> > address" but I found that writing: > >> > <cdecl: ZOOMOptions 'ZOOM_options_create' (void) module: 'yaz'> > >> > instead of > >> > <cdecl: ZOOMOptions '_ZOOM_options_create@0' (void) module: 'yaz3'> > >> > works. If I understand, function names are not mangled when compiling > >> > with > >> > gcc on Linux. > >> > > >> > Trying to run tests I've also had a "could not coerce arguments" in > >> > Z3950FFILibrary>>createConnectionTo:port because > >> > Z3950TestCase>>portNumber > >> > answers a String and > >> > <cdecl: ZOOMConnection 'ZOOM_connection_new' (char* short) module: > >> > 'yaz'> > >> > so it's waiting for a short. I've replaced portNumber to answer a > >> > SmallInteger. > >> > And now the image crashes on connectionIsIdle call: > >> > write(1, "\ncreateConnectionTo:port:", 25) = 25 > >> > write(1, "\nconnectionIsIdle:", 18) = 18 > >> > rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0 > >> > write(1, "\n", 1) = 1 > >> > tgkill(25830, 25830, SIGABRT) = 0 > >> > --- SIGABRT (Aborted) @ 0 (0) --- > >> > > >> > Any idea ? > >> > > >> > Laurent Laffont > >> > > >> > On Tue, Dec 21, 2010 at 7:58 AM, laurent laffont > >> > <laurent.laffont(a)gmail.com> > >> > wrote: > >> >> > >> >> The module is found ! How: > >> >> - Using VM Squeak 5.8b12 2 (instead of Cog or the VM provided in > >> >> Seaside > >> >> One-Click image) > >> >> - go in Squeak\ 5.8b12\ 2.app/Contents/Resources/, then ln -s > >> >> /usr/local/lib/libyaz.3.dylib . > >> >> Now I have the "Unable to find function address" you have talked > >> >> earlier > >> >> :) I will look at the mangled function names. > >> >> > >> >> Laurent --- on the road to the FFI mountain. > >> >> > >> >> On Tue, Dec 21, 2010 at 6:59 AM, Hernán Morales Durand > >> >> <hernan.morales(a)gmail.com> wrote: > >> >>> > >> >>> Laurent, > >> >>> I forward this e-mail to the squeak mailing list, may be someone > there > >> >>> have a better idea how the OSX VM works. BTW there are more > >> >>> commentaries here > >> >>> > >> >>> > >> >>> > http://forum.world.st/squeak-dev-Alien-amp-Squeak-FFI-issues-on-Snow-Leopar… > >> >>> Cheers, > >> >>> > >> >>> Hernán > >> >>> > >> >>> 2010/12/20 laurent laffont <laurent.laffont(a)gmail.com>: > >> >>> > Hi Hernan, > >> >>> > the strace equivalent on OSX seems to be dtruss (yes I'm learning > >> >>> > OSX > >> >>> > too :) > >> >>> > sudo dtruss -p [pid of process] > >> >>> > in the trace I have this: > >> >>> > > >> >>> > > >> >>> > > stat("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3.bundle/Contents/MacOS/yaz3\0", > >> >>> > 0xBFF59440, 0xBFF5AB28) = -1 Err#2 > >> >>> > > >> >>> > > >> >>> > > stat64("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3.bundle/Contents/MacOS/yaz3\0", > >> >>> > 0xBFF5892C, 0xBFF5AB28) = -1 Err#2 > >> >>> > > >> >>> > > >> >>> > > stat("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3\0", > >> >>> > 0xBFF59440, 0xBFF5AB28) = 0 0 > >> >>> > > >> >>> > > >> >>> > > stat64("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3\0", > >> >>> > 0xBFF5892C, 0xBFF5AB28) = 0 0 > >> >>> > > >> >>> > > >> >>> > > open("/Users/laurentlaffont/Downloads/Seaside.app/Contents/Resources/yaz3\0", > >> >>> > 0x0, 0x0) = 12 0 > >> >>> > pread(0xC, "\317\372\355\376\a\0", 0x1000, 0x0) = 4096 0 > >> >>> > close(0xC) = 0 0 > >> >>> > > >> >>> > > >> >>> > > stat("/Users/laurentlaffont/Downloads/Plugins/yaz3.bundle/Contents/MacOS/yaz3\0", > >> >>> > 0xBFF59440, 0x1000) = -1 Err#2 > >> >>> > > >> >>> > > >> >>> > > stat64("/Users/laurentlaffont/Downloads/Plugins/yaz3.bundle/Contents/MacOS/yaz3\0", > >> >>> > 0xBFF5892C, 0x1000) = -1 Err#2 > >> >>> > stat("/Users/laurentlaffont/Downloads/Plugins/yaz3\0", 0xBFF59440, > >> >>> > 0x1000) = > >> >>> > -1 Err#2 > >> >>> > stat64("/Users/laurentlaffont/Downloads/Plugins/yaz3\0", > 0xBFF5892C, > >> >>> > 0x1000) > >> >>> > = -1 Err#2 > >> >>> > > >> >>> > so it looks like the VM is trying to find yaz3 at non standard > Unix > >> >>> > places > >> >>> > (I don't know if it's SqueakVM or OSX related). > >> >>> > I've created Contents/Resources/yaz3.bundle/Contents/MacOS/, put > yaz > >> >>> > lib > >> >>> > there, ln -s libyaz.3.dylib yaz3 but no success. > >> >>> > > >> >>> > I've read good > >> >>> > post http://forum.world.st/FFI-Documentation-td2225150.html : > >> >>> > > >> >>> > Module Location - where the external library file lives > >> >>> > - depends on the platform > >> >>> > - Mac > >> >>> > - pre Snow Leopard > >> >>> > - checks VM path and common library > >> >>> > paths > >> >>> > - Snow Leopard > >> >>> > - only looks in VM bundle's > Resources > >> >>> > file, you must either [5]: > >> >>> > - store all external > libraries > >> >>> > there > >> >>> > - ln -s path/to/library > >> >>> > path/to/VM/Resources/library_name > >> >>> > - Change the VM's Info.plist > >> >>> > "SqueakPluginsBuiltInOrLocalOnly" key from > >> >>> > "true" to "false." > >> >>> > > >> >>> > For this SqueakPluginsBuiltInOrLocalOnly I suppose I need to > compile > >> >>> > a > >> >>> > VM ? > >> >>> > Cheers, > >> >>> > Laurent Laffont > >> >>> > > >> >>> > > >> >>> > On Mon, Dec 20, 2010 at 4:12 PM, Hernán Morales Durand > >> >>> > <hernan.morales(a)gmail.com> wrote: > >> >>> >> > >> >>> >> Hi Laurent > >> >>> >> > >> >>> >> I've read there is a couple of system calll monitors in MacOS, > >> >>> >> ktrace > >> >>> >> and dtrace (http://en.wikipedia.org/wiki/Ktrace , > >> >>> >> http://en.wikipedia.org/wiki/DTrace) so you may attach to the VM > >> >>> >> and > >> >>> >> see what's missing? > >> >>> >> Cheers, > >> >>> >> > >> >>> >> Hernán > >> >>> >> > >> >>> >> 2010/12/20 laurent laffont <laurent.laffont(a)gmail.com>: > >> >>> >> > Thanks Hernan. > >> >>> >> > It still doesn't work. I've also tried to play with > LD_LOAD_PATH > >> >>> >> > / > >> >>> >> > LD_LIBRARY_PATH no success.... I want to make it work so I need > >> >>> >> > to > >> >>> >> > learn > >> >>> >> > :) > >> >>> >> > > >> >>> >> > For the mangled function names, on Linux and OSX there's nm. > >> >>> >> > Here's what I get: > >> >>> >> > $ nm -g libyaz.3.dylib | grep ZOOM_connection_create > >> >>> >> > 0000000000046a30 T _ZOOM_connection_create > >> >>> >> > Cheers, > >> >>> >> > Laurent > >> >>> >> > > >> >>> >> > On Sun, Dec 19, 2010 at 6:23 PM, Hernán Morales Durand > >> >>> >> > <hernan.morales(a)gmail.com> wrote: > >> >>> >> >> > >> >>> >> >> Hi Laurent, > >> >>> >> >> > >> >>> >> >> Thanks for reporting. The correct #moduleName for MacOS was > >> >>> >> >> missing, > >> >>> >> >> I've uploaded a new version answering 'libyaz.3.dylib' which I > >> >>> >> >> guess > >> >>> >> >> is the corresponding for 'yaz3.dll' (according to > >> >>> >> >> http://en.wikipedia.org/wiki/Dynamic_library#Naming ). > >> >>> >> >> > >> >>> >> >> I haven't access to a MacOS, but in Windows I've had to find > the > >> >>> >> >> mangled function names (i.e. _ZOOM_connection_create@4) so > FFI > >> >>> >> >> can > >> >>> >> >> find the function addresses and you don't get the classic > >> >>> >> >> "Error: > >> >>> >> >> Unable to find function address". I don't know if it's related > >> >>> >> >> since > >> >>> >> >> talks about C++, but you may want to check > >> >>> >> >> http://wiki.squeak.org/squeak/3735 > >> >>> >> >> > >> >>> >> >> The tool I've used to find the mangled function names in > Windows > >> >>> >> >> is > >> >>> >> >> the Steve Miller's Dependency Walker > >> >>> >> >> http://www.dependencywalker.com/ > >> >>> >> >> > >> >>> >> >> 2010/12/19 laurent laffont <laurent.laffont(a)gmail.com>: > >> >>> >> >> > Hi, > >> >>> >> >> > > >> >>> >> >> > I want to use http://www.squeaksource.com/Z3950 > >> >>> >> >> > Following install instructions, I've dowloaded yaz sources > >> >>> >> >> > (I've > >> >>> >> >> > tried > >> >>> >> >> > 4.1.2 > >> >>> >> >> > and 3.0.52) as it seems there's no binary for OSX, > ./configure > >> >>> >> >> > && make > >> >>> >> >> > && > >> >>> >> >> > make install. > >> >>> >> >> > Then using latest Seaside One Click image I've copied > >> >>> >> >> > /usr/local/lib/*yaz* > >> >>> >> >> > in Seaside.app/Contents/MacOS > >> >>> >> >> > $ ls ~/Downloads/Seaside.app/Contents/MacOS/ > >> >>> >> >> > Squeak VM Opt libyaz.a libyaz.la > >> >>> >> >> > libyaz_icu.a libyaz_icu.la libyaz_server.a > >> >>> >> >> > libyaz_server.la libyaz.3.dylib libyaz.dylib > >> >>> >> >> > libyaz_icu.3.dylib libyaz_icu.dylib > >> >>> >> >> > libyaz_server.3.dylib > >> >>> >> >> > libyaz_server.dylib > >> >>> >> >> > > >> >>> >> >> > > >> >>> >> >> > But then I have a External Module Not Found on > >> >>> >> >> > YAZPQFFFILibrary>>createParser > >> >>> >> >> > " YAZPQDFFILibrary default createParser " > >> >>> >> >> > <cdecl: YAZPQFParser 'yaz_pqf_create' (void) module: 'yaz3'> > >> >>> >> >> > ^ self externalCallFailed > >> >>> >> >> > > >> >>> >> >> > Any hint ? > >> >>> >> >> > Cheers, > >> >>> >> >> > Laurent Laffont -- FFI newbie > >> >>> >> >> > > >> >>> >> >> > Pharo Smalltalk Screencasts: http://www.pharocasts.com/ > >> >>> >> >> > Blog: http://magaloma.blogspot.com/ > >> >>> >> >> > > >> >>> >> >> > >> >>> >> >> -- > >> >>> >> >> Hernán Morales > >> >>> >> >> Information Technology Manager, > >> >>> >> >> Institute of Veterinary Genetics. > >> >>> >> >> National Scientific and Technical Research Council (CONICET). > >> >>> >> >> La Plata (1900), Buenos Aires, Argentina. > >> >>> >> >> Telephone: +54 (0221) 421-1799. > >> >>> >> >> Internal: 422 > >> >>> >> >> Fax: 425-7980 or 421-1799. > >> >>> >> > >

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asserta(newUtcMicrosecondClock >= utcMicrosecondClock) failing
by Mariano Martinez Peck 26 Dec '10

26 Dec '10

Hi everybody. I hope you are enjoying a wonderful and happy Christmas. Yesterday something weird happened with my cog vm. This assert was failing: "newUtcMicrosecondClock >= utcMicrosecondClock 127" a lot of times... I checked and this is line 127 of sqUnixHeartbeat.c. I am in a MacOS vm, but it seems that file is used anyway. Now...I have no idea why this assert was failing, nor its severity. What does it mean? there is something wrong? where can I take a look? It seems it is not easy to reproduce :( Thanks in advance, Mariano

3 3

Re: [squeak-dev] [4.2] Release Notes - first draft
by David T. Lewis 25 Dec '10

25 Dec '10

Thanks Chris. > - An interface to the operating system stdio. Oops, this is only in Cog only at this point. I opened Mantis 7591 "Add #primitiveFileStdioHandles to standard VM" to follow up on it (but not today - happy holidays everyone :). Dave On Fri, Dec 24, 2010 at 05:32:13PM -0600, Chris Muller wrote: > After reviewing every new package version since 4.1, I came up with > the following for release notes for 4.2. There were, literally, > dozens of little enhancements, fixes and performance improvements > which I simply decided to summarize under: > > "- Many enhancements, fixes, documentation and performance > improvements to the class-library and IDE tools." > > The remaining items either weren't an enhancment, fix, doc of perf, or > otherwise seemed worth mentioning individually. > > I've put as much time as I can afford into this one, but it could use > your help in touching these up. Please add any _major_ (not minor, > please) items I may have missed. Please improve wording of items that > need it; for example: "- Finalization enhancements.". > > Please make final changes on the wiki page: > > http://wiki.squeak.org/squeak/6160 > > rather than replying here, since that would leave the updates > fragmented among multiple e-mails. > > What we end up with on the wiki page is what we will use for the release. > > Thanks you! > Chris > > > Squeak 4.2 Release Notes > > - Compatible with the new Cog VM which provides roughly a 3X, > across-the-board, performance improvement. > - Compatible with signature Squeak packages. > - Many enhancements, fixes, documentation and performance improvements > to the class-library and IDE tools. > - Improved package-dependencies. > - A new number parser allows greater flexibility in the expression of numbers. > - Finalization enhancements. > - Support for caching of block computations, without need for the > developer to declare a variable. ^[time-consuming computation] once > - An interface to the operating system stdio. > - Stricter Rectangles assert screen coordinate orientation. Empty > Rectangles no longer #intersect: anything. > - A tidier image and code-base. Introduced a cleanUp protocol, > removed the last direct users of CrLfFileStream, j3 support, > SyntaxError, and more. Various packages and fonts can now be > unloaded, if a smaller image is desired. > - Replaced the last of the underscore assignments with ANSI assignments. > - A refactoring and unification of Smalltalk and SmalltalkImage globals. > - Support for translucent fonts. > - Squeak's internal timer clock has been improved from millisecond to > microsecond level precision. > - Many enhancements to the internal text editor. > - Added an efficient window-resizing gesture, allowing Squeak windows > to be quickly and easily manipulated. > - A new HelpSystem and Help menu guide new users. > - Restored support for MVC projects. > - SUnit tests now may timeout. > - Improved Squeak's command-line interface to properly support > relative-path qualification to the input script.

1 0

how to print/inspect stuff with XCode?
by Mariano Martinez Peck 25 Dec '10

25 Dec '10

Hi guys. While debugging the VM with XCode, I sometime feel really stupid. Uhhh, sorry, happy Christmats ;) I cannot inspect values or do things. Maybe I am so used to Smalltalk that I am asking too much to C. So, for example I have this code: if (! ( ( (usqInt) addr ) <= ( (usqInt) GIV(fwdTableNext) ) )) { print("fwdTableNext"); }; And I have a breakpoint on the print. I can see the value of fwdTableNext or addr. But how can I inspect for example, "GIV(fwdTableNext)" ? or "( (usqInt) GIV(fwdTableNext) )" ? I mean...how can I inspect the result of calling certain functions to such variables? can I do that? if I cannot, how it is expected I can debug that for example? (assing each result to another variable ans inspect that?) I tried using the the expressions browser, but everything I add says "out of scope" Thanks in advance, Mariano

2 1

Cog VM app icon
by Igor Stasenko 25 Dec '10

25 Dec '10

Hello, i almost done with generating an app bundle for Cog VM , and i found that it is using a Croquet Icon. Which doesn't seems right to me. I remember there was a guy , who presented a nice cog icon and other graphics.. anyone knows where i can find them? -- Best regards, Igor Stasenko AKA sig.

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Vm-dev December 2010