Vm-dev May 2018

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Errored: OpenSmalltalk/opensmalltalk-vm#1333 (Cog - 334be97)
by Travis CI 09 May '18

09 May '18

Build Update for OpenSmalltalk/opensmalltalk-vm ------------------------------------- Build: #1333 Status: Errored Duration: 38 mins and 25 secs Commit: 334be97 (Cog) Author: Esteban Lorenzano Message: Merge pull request #255 from estebanlm/Cog another try to properly build libgit2 (v3) View the changeset: https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/2a64f480334f...33… View the full build log and details: https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/builds/376730695?utm_s… -- You can configure recipients for build notifications in your .travis.yml file. See https://docs.travis-ci.com/user/notifications This email was sent to vm-dev(a)lists.squeakfoundation.org (mailto:vm-dev@lists.squeakfoundation.org) unsubscribe from this list (http://clicks.travis-ci.com/track/unsub.php?u=14313403&id=a55639fb870a41caa…)

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[OpenSmalltalk/opensmalltalk-vm] another try to properly build libgit2 (v3) (#255)
by Esteban Lorenzano 09 May '18

09 May '18

You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/255 -- Commit Summary -- * another try to properly build libgit2 * temporal line to verify the result of libgit2 build * now is ssh2 what's not there * trying adding dependencies * maybe not all those ;) * another try? * you like more this one? * the problems of copy&pasting * restore dependencies but it *shouldn't* be necessary :( * maybe setting LD_FLAGS explicit? * more to force libssh2 directory * Merge branch 'Cog' of github.com:OpenSmalltalk/opensmalltalk-vm into Cog * still working on compile lingit2 with libssh2 -- File Changes -- M .travis_install.sh (3) M build.linux32x86/third-party/Makefile.libgit2 (11) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/255.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/255.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/255

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[OpenSmalltalk/opensmalltalk-vm] cd1c0b: another try to properly build libgit2
by GitHub 09 May '18

09 May '18

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: cd1c0b66630ab84a7a3d9a91b0f5b7d8533b2886 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/cd1c0b66630ab84a7a… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- another try to properly build libgit2 Commit: 68d9f3da0f8c572ee0936481b15770ecef5614e4 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/68d9f3da0f8c572ee0… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- temporal line to verify the result of libgit2 build Commit: 29a6227b7e2e7d58018202b0ed060caacc5d6670 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/29a6227b7e2e7d5801… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- now is ssh2 what's not there Commit: be96b733399be9b6640fe6ca954565b0f68f0d7a https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/be96b733399be9b664… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M .travis_install.sh Log Message: ----------- trying adding dependencies Commit: 170076560e79ebd1b7f15fb33b86a2432438ebac https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/170076560e79ebd1b7… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M .travis_install.sh Log Message: ----------- maybe not all those ;) Commit: 52cf9d63e029d01b717f1c72be57e05dc37714c8 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/52cf9d63e029d01b71… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M .travis_install.sh M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- another try? Commit: 2ed9fc5a8631ea0c5bb89407256488bf726d5add https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/2ed9fc5a8631ea0c5b… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M .travis_install.sh Log Message: ----------- you like more this one? Commit: 269e0324db13cdb60ff6b5c01e26241b461775d4 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/269e0324db13cdb60f… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M .travis_install.sh Log Message: ----------- the problems of copy&pasting Commit: 22eed5f14b9eefb008517e414a9c450d086f62e8 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/22eed5f14b9eefb008… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-18 (Wed, 18 Apr 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- restore dependencies but it *shouldn't* be necessary :( Commit: 2ace8e6cbf96b84e117357c2ea36745f780e9b7c https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/2ace8e6cbf96b84e11… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-19 (Thu, 19 Apr 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- maybe setting LD_FLAGS explicit? Commit: cecb32da7f516207ed0b6c4c4ce31a6719832b04 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/cecb32da7f516207ed… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-04-19 (Thu, 19 Apr 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- more to force libssh2 directory Commit: ea061cbcd19beadba0388cceeb882e8cadf49526 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/ea061cbcd19beadba0… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-05-07 (Mon, 07 May 2018) Changed paths: M build.macos32x86/HowToBuild M build.macos32x86/common/Makefile.flags M build.macos64x64/HowToBuild M build.macos64x64/common/Makefile.flags M nsspur64src/vm/cogit.h M nsspur64src/vm/cogitX64SysV.c M nsspur64src/vm/cogitX64WIN64.c M nsspur64src/vm/cointerp.c M nsspur64src/vm/cointerp.h M nsspur64src/vm/gcc3x-cointerp.c 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 nsspurstack64src/vm/gcc3x-interp.c M nsspurstack64src/vm/interp.c M nsspurstacksrc/vm/gcc3x-interp.c M nsspurstacksrc/vm/interp.c A scripts/modified A scripts/untracked M spur64src/vm/cogit.h M spur64src/vm/cogitX64SysV.c M spur64src/vm/cogitX64WIN64.c M spur64src/vm/cointerp.c M spur64src/vm/cointerp.h M spur64src/vm/cointerpmt.c M spur64src/vm/cointerpmt.h M spur64src/vm/gcc3x-cointerp.c M spur64src/vm/gcc3x-cointerpmt.c M spurlowcode64src/vm/cogit.h M spurlowcode64src/vm/cogitX64SysV.c M spurlowcode64src/vm/cogitX64WIN64.c M spurlowcode64src/vm/cointerp.c M spurlowcode64src/vm/cointerp.h M spurlowcode64src/vm/gcc3x-cointerp.c M spurlowcodesrc/vm/cogit.h M spurlowcodesrc/vm/cogitARMv5.c M spurlowcodesrc/vm/cogitIA32.c M spurlowcodesrc/vm/cogitMIPSEL.c M spurlowcodesrc/vm/cointerp.c M spurlowcodesrc/vm/cointerp.h M spurlowcodesrc/vm/gcc3x-cointerp.c M spurlowcodestack64src/vm/gcc3x-interp.c M spurlowcodestack64src/vm/interp.c M spurlowcodestacksrc/vm/gcc3x-interp.c M spurlowcodestacksrc/vm/interp.c M spursista64src/vm/cogit.h M spursista64src/vm/cogitX64SysV.c M spursista64src/vm/cogitX64WIN64.c M spursista64src/vm/cointerp.c M spursista64src/vm/cointerp.h M spursista64src/vm/gcc3x-cointerp.c 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 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/cointerpmt.c M spursrc/vm/cointerpmt.h M spursrc/vm/gcc3x-cointerp.c M spursrc/vm/gcc3x-cointerpmt.c M spurstack64src/vm/gcc3x-interp.c M spurstack64src/vm/interp.c M spurstacksrc/vm/gcc3x-interp.c M spurstacksrc/vm/interp.c M src/plugins/Squeak3D/Squeak3D.c M src/plugins/SqueakFFIPrims/ARM32FFIPlugin.c M src/plugins/SqueakFFIPrims/IA32FFIPlugin.c M src/plugins/SqueakFFIPrims/X64SysVFFIPlugin.c M src/plugins/SqueakFFIPrims/X64Win64FFIPlugin.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 stacksrc/vm/gcc3x-interp.c M stacksrc/vm/interp.c Log Message: ----------- Merge branch 'Cog' of github.com:OpenSmalltalk/opensmalltalk-vm into Cog Commit: d0e778b84d9a787a20b11ae706da777f5b2a548c https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/d0e778b84d9a787a20… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-05-07 (Mon, 07 May 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- still working on compile lingit2 with libssh2 Commit: cd2359e429235ab7d0fc7df32c034ee715527a9a https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/cd2359e429235ab7d0… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-05-07 (Mon, 07 May 2018) Changed paths: M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- remove invisible chars Commit: 334be97340479063fad3c7bc64decb9d56190371 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/334be97340479063fa… Author: Esteban Lorenzano <estebanlm(a)gmail.com> Date: 2018-05-09 (Wed, 09 May 2018) Changed paths: M .travis_install.sh M build.linux32x86/third-party/Makefile.libgit2 Log Message: ----------- Merge pull request #255 from estebanlm/Cog another try to properly build libgit2 (v3) Compare: https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/2a64f480334f...33… **NOTE:** This service been marked for deprecation: https://developer.github.com/changes/2018-04-25-github-services-deprecation/ Functionality will be removed from GitHub.com on January 31st, 2019.

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Implicit Character -> Integer conversion with basicAt:
by Eliot Miranda 08 May '18

08 May '18

Hi Clément, I provoked some protest last week by rewriting String>>isAsciiString ^self allSatisfy: [ :each | each asciiValue <= 127 ] as String>>isAsciiString 1 to: self basicSize do: [:i| (self basicAt: i) > 127 ifTrue: [^false]]. ^true The speed up is around 5x to 6x. The question comes does Scorch know that it can implicitly obtain Character asciiValue by substituting a suitable basicAt: for the at:, or is the chain of inference too complex (as yet)? _,,,^..^,,,_ (phone)

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Spur Memory segment and OS allocation
by Clément Bera 08 May '18

08 May '18

Hi Eliot, Hi all, On mac and linux, Spur uses mmap to allocate new segments. The V3 memory manager used malloc instead. I've looked into many other VMs (Javascript and Java), and most of them use posix_memalign (basically malloc where you can ask for specific alignment). I am wondering why we are using mmap over posix_memalign / malloc. The only reason I can find is that Spur always allocate new memory segments at a higher address than past segments to guarantee that young objects are on lower addresses than old objects for the write barrier. Is that correct? Assuming it is correct, let's say I change Spur to implement the write barrier differently (typically, I change all objects to be aligned on 128 bits instead of 64 and have different allocation alignment for young (128 bits alignment) and old objects(128+64 bits alignment)). Will we be able to use posix_memalign / malloc to allocate new memory segment if I do that ? Or does the VM rely on segments being on higher addresses for other reasons ? For example, does the VM assume CogMethods are on lower addresses than objects on heap and rely on it to check if a stack frame is mframe or iframe ? Thanks, -- Clément Béra https://clementbera.github.io/ https://clementbera.wordpress.com/

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[OpenSmalltalk/opensmalltalk-vm] Makefile.libgit2 additional logging (#257)
by akgrant43 07 May '18

07 May '18

Dump libssh2 symbol information to confirm presence of libssh2_userauth_publickey_frommemory Not for integration in to Cog. You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/257 -- Commit Summary -- * libgit2 build logging * Makefile.libgit2 additional logging -- File Changes -- M build.linux32x86/third-party/Makefile.libgit2 (8) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/257.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/257.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/257

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[OpenSmalltalk/opensmalltalk-vm] libgit2 build logging (#256)
by akgrant43 07 May '18

07 May '18

Temporary debug logging to try and figure out why libssh2 isn't correctly referenced in libgit2. This should NOT be merged in to the main code. You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/256 -- Commit Summary -- * libgit2 build logging -- File Changes -- M build.linux32x86/third-party/Makefile.libgit2 (6) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/256.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/256.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/256

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[OpenSmalltalk/opensmalltalk-vm] another try to properly build libgit2 (#253)
by Esteban Lorenzano 07 May '18

07 May '18

You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/253 -- Commit Summary -- * another try to properly build libgit2 -- File Changes -- M build.linux32x86/third-party/Makefile.libgit2 (8) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/253.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/253.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/253

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<Programming> 2019: Call for Papers & Call for Workshop Proposals
by Fabio Niephaus 07 May '18

07 May '18

<Programming> 2019 : The Art, Science, and Engineering of Programming April 1-4, 2019, Genova, Italy http://2019.programming-conference.org The International Conference on the Art, Science, and Engineering of Programming is a new conference focused on programming topics including the experience of programming. We have named it <Programming> for short. <Programming> seeks for papers that advance knowledge of programming on any relevant topic, including programming practice and experience. Paper submissions and publications are handled by the the Art, Science, and Engineering of Programming journal (http://programming-journal.org). Accepted papers must be presented at the conference. ******************************************************** CALL FOR PAPERS ******************************************************** <Programming> 2019 accepts scholarly papers that advance knowledge of programming. Almost anything about programming is in scope, but in each case there should be a clear relevance to the act and experience of programming. PAPER SUBMISSIONS: June 1, 2018 URL FOR SUBMISSIONS: http://programming-journal.org/submission/ Submissions covering several areas of expertise are accepted, including but not limited to: • General-purpose programming • Distributed systems programming • Parallel and multi-core programming • Graphics and GPU programming • Security programming • User interface programming • Database programming • Visual and live programming • Data mining and machine learning programming • Interpreters, virtual machines and compilers • Modularity and separation of concerns • Model-based development • Metaprogramming and reflection • Testing and debugging • Program verification • Programming education • Programming environments • Social coding ******************************************************** CALL FOR WORKSHOP PROPOSALS ******************************************************** To build a community and to foster an environment where participants can exchange ideas and experiences related to practical software development, <Programming> will host a number of workshops, during the days before the main conference. The workshops will provide a collaborative forum to exchange recent and/or preliminary results, to conduct intensive discussions on a particular topic, or to coordinate efforts between representatives of a technical community. They are intended as a forum for lively discussion of innovative ideas, recent progress, or practical experience on programming and applied software development in general for specific aspects, specific problems, or domain-specific needs. We also encourage practical, hands-on workshops in which participants actually experience one or several aspects of practical software development. WORKSHOP PROPOSAL SUBMISSIONS: First Deadline: July 1st, 2018 Second Deadline: September 1st, 2018 The duration of workshops is in general one day, but we encourage the submission of half-day workshop proposals on focused topics as well. In exceptional situations, e.g., for workshops that involve actual practice of programming-related activities, workshop organizers can request a 2 day workshop slot. If desired, the workshop proceedings can be published in the ACM Digital Library. ******************************************************** IMPORTANT DATES ******************************************************** Research paper submissions: June 1, 2019 Research paper first notifications: August 1, 2018 Research paper final notifications: September 7, 2018 Workshop proposals: July 1st, 2018 (first deadline) Workshop proposals: September 1st, 2018 (second deadline) ******************************************************** ORGANIZATION ******************************************************** General Chair: Davide Ancona, University of Genova Local Organizing Chair: Elena Zucca, University of Genova Program Chair: Matthew Flatt, University of Utah Organizing Committee: Walter Cazzola (Workshops Co-Chair), Università degli Studi di Milano Stefan Marr (Workshops Co-Chair), University of Kent Fabio Niephaus (Publicity Co-Chair), Hasso Plattner Institute, University of Potsdam Tobias Pape (Web Technology Chair), Hasso Plattner Institute, University of Potsdam Program Committee: Mehdi Bagherzadeh, Oakland University Walter Cazzola, Università degli Studi di Milano Ravi Chugh, University of Chicago Joeri De Koster, Vrije Universiteit Brussel Christos Dimoulas, Northwestern University Susan Eisenbach, Imperial College London Richard P. Gabriel, Dream Songs, Inc. & HPI Jeremy Gibbons, University of Oxford Michael Greenberg, Pomona College Philipp Haller, KTH Royal Institute of Technology Robert Hirschfeld, HPI, University of Potsdam Eunsuk Kang, Carnegie Mellon University Stephen Kell, University of Cambridge Stefan Marr, University of Kent Tamara Rezk, Inria Joshua Sunshine, Carnegie Mellon University Steffen Zschaler, King's College London ******************************************************** <Programming> 2019 is kindly supported by AOSA ******************************************************** For more information, visit http://2019.programming-conference.org

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StackInterp/Cog>>transferTo: - assertValidExecutionPointe:r:s differences
by Ben Coman 06 May '18

06 May '18

Just curious about the difference in instructionPointer between these two... StackInterpreter>>transferTo: self assertValidExecutionPointe: instructionPointer + 1 r: framePointer s: stackPointer. CoIntepreter>>transferTo:from: self assertValidExecutionPointe: instructionPointer r: framePointer s: stackPointer. cheers -ben

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Vm-dev May 2018