Vm-dev December 2010

vm-dev@lists.squeakfoundation.org

42 participants
109 discussions

[Vm-dev] OSProcessPlugin: VMConstruction-Plugins-OSProcessPlugin-dtl.25.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 03 Jan '11

03 Jan '11

Dave Lewis uploaded a new version of VMConstruction-Plugins-OSProcessPlugin to project OSProcessPlugin: http://www.squeaksource.com/OSProcessPlugin/VMConstruction-Plugins-OSProces… ==================== Summary ==================== Name: VMConstruction-Plugins-OSProcessPlugin-dtl.25 Author: dtl Time: 31 December 2010, 10:10:07 am UUID: 6ef147f9-8fdc-48b9-af28-4482b4e2a6de Ancestors: VMConstruction-Plugins-OSProcessPlugin-dtl.24 OSProcessPlugin 4.4.1 Fix #primitiveTestEndOfFileFlag to use interpreterProxy primitiveFail. This bug caused linking problems (symbol visibility) on Mac.

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[COG] should cog unlinkSends in #flushMethodCacheFrom:to:
by Mariano Martinez Peck 01 Jan '11

01 Jan '11

Hi Eliot. I am very newbie in all this stuff, so I would directly ask you if you could explain me my doubt ;) StackInterpreter >> flushMethodCacheFrom: memStart to: memEnd "Flush entries in the method cache only if the oop address is within the given memory range. This reduces overagressive cache clearing. Note the AtCache is fully flushed, 70% of the time cache entries live in newspace, new objects die young" | probe | probe := 0. 1 to: MethodCacheEntries do: [:i | (methodCache at: probe + MethodCacheSelector) = 0 ifFalse: [((((self oop: (methodCache at: probe + MethodCacheSelector) isGreaterThanOrEqualTo: memStart) and: [self oop: (methodCache at: probe + MethodCacheSelector) isLessThan: memEnd]) or: [(self oop: (methodCache at: probe + MethodCacheClass) isGreaterThanOrEqualTo: memStart) and: [self oop: (methodCache at: probe + MethodCacheClass) isLessThan: memEnd]]) or: [(self oop: (methodCache at: probe + MethodCacheMethod) isGreaterThanOrEqualTo: memStart) and: [self oop: (methodCache at: probe + MethodCacheMethod) isLessThan: memEnd]]) ifTrue: [methodCache at: probe + MethodCacheSelector put: 0]]. probe := probe + MethodCacheEntrySize]. 1 to: AtCacheTotalSize do: [:i | atCache at: i put: 0] But if I see CoInterpreter >> flushMethodCache "Flush the method cache. The method cache is flushed on every programming change and garbage collect." 1 to: MethodCacheSize do: [ :i | methodCache at: i put: 0 ]. lastMethodCacheProbeWrite := 0. "this for primitiveExternalMethod" cogit unlinkAllSends So....my newbie question is just why the "cogit unlinkAllSends" is not need in Cog? I mean, why cog doesn't need to do: CoInterpreter >> flushMethodCacheFrom: memStart to: memEnd super flushMethodCacheFrom: memStart to: memEnd . self unlinkAllSends. Thanks for the explanation in advance, Mariano

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[commit] r2336 - Nuke VM_LIBDIR, a Unix fossil in the Mac OS tar sands. Make VM_VERSION on
by commits＠squeakvm.org 31 Dec '10

31 Dec '10

Author: eliot Date: 2010-12-31 11:27:35 -0800 (Fri, 31 Dec 2010) New Revision: 2336 Modified: branches/Cog/platforms/Mac OS/vm/config.h branches/Cog/platforms/Mac OS/vm/sqMacUnixExternalPrims.c branches/Cog/platforms/win32/vm/sqWin32.h Log: Nuke VM_LIBDIR, a Unix fossil in the Mac OS tar sands. Make VM_VERSION on Win32 correspond to Mac and cal a Cog a Cog. Modified: branches/Cog/platforms/Mac OS/vm/config.h =================================================================== --- branches/Cog/platforms/Mac OS/vm/config.h 2010-12-31 01:48:33 UTC (rev 2335) +++ branches/Cog/platforms/Mac OS/vm/config.h 2010-12-31 19:27:35 UTC (rev 2336) @@ -172,9 +172,8 @@ /* other configured variables */ -#define SQ_VERSION "3.8g-6548" -#define VM_VERSION "3.8a-2" -#define VM_LIBDIR "/usr/local/lib/squeak/3.8a-2" +#define SQ_VERSION "4.0-2334" +#define VM_VERSION "4.0" #define VM_MODULE_PREFIX "" /* #undef VM_DLSYM_PREFIX */ #define VM_X11DIR "/usr/X11R6/lib" Modified: branches/Cog/platforms/Mac OS/vm/sqMacUnixExternalPrims.c =================================================================== --- branches/Cog/platforms/Mac OS/vm/sqMacUnixExternalPrims.c 2010-12-31 01:48:33 UTC (rev 2335) +++ branches/Cog/platforms/Mac OS/vm/sqMacUnixExternalPrims.c 2010-12-31 19:27:35 UTC (rev 2336) @@ -275,8 +275,7 @@ || (handle= tryLoading( "./", pluginName)) || (handle= tryLoading( vmDirPath, pluginName)) || (handle= tryLoadingPath("SQUEAK_PLUGIN_PATH", pluginName)) - || (handle= tryLoading( VM_LIBDIR"/", pluginName)) - //JMM || (handle= tryLoadingPath("LD_LIBRARY_PATH", pluginName)) + //JMM || (handle= tryLoadingPath("LD_LIBRARY_PATH", pluginName)) || (handle= tryLoading( "", pluginName)) # if defined(VM_X11DIR) || (handle= tryLoading(VM_X11DIR"/", pluginName)) Modified: branches/Cog/platforms/win32/vm/sqWin32.h =================================================================== --- branches/Cog/platforms/win32/vm/sqWin32.h 2010-12-31 01:48:33 UTC (rev 2335) +++ branches/Cog/platforms/win32/vm/sqWin32.h 2010-12-31 19:27:35 UTC (rev 2336) @@ -236,7 +236,7 @@ #define VERSION "" #endif -#define VM_VERSION TEXT("Teleplace VM 1.0.15 (release) from ") TEXT(__DATE__) \ +#define VM_VERSION TEXT("Cog VM 4.0.0 (release) from ") TEXT(__DATE__) \ TEXT("\n") TEXT("Compiler: ") TEXT(COMPILER) TEXT(VERSION) /********************************************************/

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Compiling OSProcessPlugin for Cocoa Cog VM (Mac)
by Esteban Lorenzano 31 Dec '10

31 Dec '10

Hi, I'm trying to compile UnixOSProcessPlugin as an external plugin for Cocoa Cog VM. I created a project (in the future CMakeGenerator will doit, but for now it was hand), and I'm having some problems due to "Symbol not found" errors. The problems were because dependences of OSProcessPlugin with aio functions (fixed by Igor now), and with dependences with #printAllStacks. Well... my doubt is: should OSProcessPlugin be an internal plugin? or there are something wrong? I used OSProcessPlugin before (in 4.2.5) as an external plugin... so, I think it *should* be external, but I don't know :( Cheers, Esteban

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VM Maker: SlangBrowser-ar.5.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 31 Dec '10

31 Dec '10

Andreas Raab uploaded a new version of SlangBrowser to project VM Maker: http://www.squeaksource.com/VMMaker/SlangBrowser-ar.5.mcz ==================== Summary ==================== Name: SlangBrowser-ar.5 Author: ar Time: 31 December 2010, 3:57:55 am UUID: 3ae3dd23-946c-c24e-a798-84504dcbad99 Ancestors: SlangBrowser-dtl.4 Extra commit to work around another case of broken squeaksource mcd generation.

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Strange error while building stack vm
by Igor Stasenko 31 Dec '10

31 Dec '10

(warnings are supressed) In file included from /Users/sig/projects/cog/sig-cog/build/../platforms/Mac OS/vm/Developer/sqGnu.h:46, from /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c:20: /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c: At top level: /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c: At top level: /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c:15490: note: ‘theIP’ was declared here /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c:34730: note: ‘hdrTypeBits’ was declared here /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c:14690: note: ‘hdrTypeBits’ was declared here /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c:35424: note: ‘freeChunkSize’ was declared here /Users/sig/projects/cog/sig-cog/src/vm/gcc3x-interp.c:35311: note: ‘freeChunkSize’ was declared here /var/folders/kE/kEXZB7BWHXWwxswd6aL4XU+++TM/-Tmp-//ccIxqx9C.s:143250:FATAL:Symbol L0bereaveAllMarriedContexts already defined. i found the only use of it in generated code: voidVMStateForSnapshot(void) { DECL_MAYBE_SQ_GLOBAL_STRUCT sqInt activeContext; sqInt header; sqInt oop; sqInt sz; activeContext = divorceAllFrames(); /* begin bereaveAllMarriedContexts */ VM_LABEL(0bereaveAllMarriedContexts); but gcc insists that there are another one??? -- Best regards, Igor Stasenko AKA sig.

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VM Maker: VMMaker-ar.214.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 31 Dec '10

31 Dec '10

Andreas Raab uploaded a new version of VMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/VMMaker-ar.214.mcz ==================== Summary ==================== Name: VMMaker-ar.214 Author: ar Time: 31 December 2010, 10:29:59 am UUID: 7b567770-b063-ef4e-8b77-f35e0e2b56ce Ancestors: VMMaker-dtl.213 Add the changes for atomic suspend. For some reason these were missing in VMMaker proper.

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fdlibm is not C99 conformant
by Nicolas Cellier 31 Dec '10

31 Dec '10

Hi, I suggest using replacements for __HI() and __LO() without illegal pointer dereferencing. One stupid possibility is to use an explicit memory copy, like in this example: (see test_fdlibm.c attachment) I've tested with: gcc -m64 -Wall -02 -D__LITTLE_ENDIAN test_fdlibm.c ./a.out and obtained x=-3.14159 Of course, it'll be a bit slower, but we don't care. More problematic is that we would have to change all the fdlibm sources... Nicolas

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[commit] r2335 - set LE flag and disable GCC optimisations for FloatMathPlugin
by commits＠squeakvm.org 31 Dec '10

31 Dec '10

Author: piumarta Date: 2010-12-30 17:48:33 -0800 (Thu, 30 Dec 2010) New Revision: 2335 Modified: trunk/platforms/unix/ChangeLog trunk/platforms/unix/plugins/FloatMathPlugin/config.cmake Log: set LE flag and disable GCC optimisations for FloatMathPlugin Modified: trunk/platforms/unix/ChangeLog =================================================================== --- trunk/platforms/unix/ChangeLog 2010-12-31 01:21:36 UTC (rev 2334) +++ trunk/platforms/unix/ChangeLog 2010-12-31 01:48:33 UTC (rev 2335) @@ -1,3 +1,8 @@ +2010-12-31 Ian Piumarta <com -dot- gmail -at- piumarta (backwards)> + + * plugins/FloatMathPlugin/config.cmake: Set little-endian flag + explicitly. Disable GCC optimisations. + 2010-08-06 Ian Piumarta <com -dot- gmail -at- piumarta (backwards)> * vm-display-X11/config.cmake: Manually check for Xrender library. Modified: trunk/platforms/unix/plugins/FloatMathPlugin/config.cmake =================================================================== --- trunk/platforms/unix/plugins/FloatMathPlugin/config.cmake 2010-12-31 01:21:36 UTC (rev 2334) +++ trunk/platforms/unix/plugins/FloatMathPlugin/config.cmake 2010-12-31 01:48:33 UTC (rev 2335) @@ -1 +1,14 @@ PLUGIN_DEFINITIONS (-DNO_ISNAN=1) + +# fdlibm.h does not recognize x86_64, so set endianness here for all platforms. + +TEST_BIG_ENDIAN (IS_BIG_ENDIAN) +IF (NOT IS_BIG_ENDIAN) + PLUGIN_DEFINITIONS (-D__LITTLE_ENDIAN=1) +ENDIF () + +# GCC optimizations break fdlibm so disable them for now. + +IF (CMAKE_COMPILER_IS_GNUCC) + SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -mno-fused-madd") +ENDIF ()

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VM Maker: CMakeVMMaker-Igor.Stasenko.10.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 31 Dec '10

31 Dec '10

Igor Stasenko uploaded a new version of CMakeVMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/CMakeVMMaker-Igor.Stasenko.10.mcz ==================== Summary ==================== Name: CMakeVMMaker-Igor.Stasenko.10 Author: Igor.Stasenko Time: 31 December 2010, 1:13:23 am UUID: 7f423f50-ef0c-429d-b52b-92f851922dd3 Ancestors: CMakeVMMaker-Igor.Stasenko.9 - added config for building UnixOSProcessPlugin try building with: | config | config := CogMacOSConfig new. config externalPlugins: (config externalPlugins copyWith: #UnixOSProcessPlugin). CMakeVMGenerator new generate: config.

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Vm-dev December 2010