ecl-devel December 2020

ecl-devel@common-lisp.net

10 participants
9 discussions

Where to go with EQL5 and QT specific questions?
by Erik Winkels 01 May '21

01 May '21

So you've noticed I'm kinda slow. I've finally started working on an app for Sailfish OS thanks to Renaud's fantastic template https://redmine.casenave.fr/projects/eql5-sfos/repository/44/revisions/mast… and also thanks to all the people who have worked on ECL and EQL. I know little of QT however and looking at the EQL5 examples only gets me so far. What would be a good venue to ask my (initially really basic) questions on the combination of ECL, EQL and QT? I mean, I want to ask questions to people who also like to program in Common Lisp so I don't have to have a discussion thread first on why I am not using C++ or Python. Would this mailing-list be ok? (I'm a little hesitant.) https://www.reddit.com/user/eql5 perhaps? Do the people here read that? My preference would be either e-mail or web forums, but if everyone is on Matrix or Discord these days then I guess I'll have to go there. Regards, Erik

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[EQL5] Slow startup
by Erik Winkels 14 Jan '21

14 Jan '21

Hi, in my app for Sailfish OS I've got a really long startup time compared to other apps. (On the first load it is especially long, I assume because Quicklisp is loading systems.) The longest wait and the one that would make startup time good enough for me if it was gone is marked with "-->": $ eql5 --version [D] unknown:0 - Using Wayland-EGL EQL5 20.7.1 (ECL 20.4.24, Qt 5.6.3) $ pusfofefe [D] unknown:0 - Using Wayland-EGL ;;; Loading #P"/usr/lib/ecl-20.4.24/ecl-quicklisp.fas" ;;; Loading #P"/usr/lib/ecl-20.4.24/ecl-curl.fas" ;;; Loading #P"/usr/lib/ecl-20.4.24/sockets.fas" ;;; Loading "/home/nemo/quicklisp/setup.lisp" ;;; Loading #P"/usr/lib/ecl-20.4.24/asdf.fas" --> Reading config "/home/nemo/.config/pusfofefe/config.lisp"... Config read. Reading messages from "/home/nemo/.config/pusfofefe/messages.lisp"... 50 messages read. It seems to be right before my code starts running. Is this an issue for EQL5-Android/iOS as well? Any fixes? Regards, Erik

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[release candidate][testing]
by Daniel Kochmański 02 Jan '21

02 Jan '21

Hey, we've started tests before the next release if you have time and resources to help, then the issue is here: https://gitlab.com/embeddable-common-lisp/ecl/-/issues/621 Best regards, Daniel -- Daniel Kochmański ;; aka jackdaniel | Przemyśl, Poland TurtleWare - Daniel Kochmański | www.turtleware.eu "Be the change that you wish to see in the world." - Mahatma Gandhi

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[CfP] ELS'21, 14th European Lisp Symposium, online, May 3-4 2021
by Didier Verna 23 Dec '20

23 Dec '20

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 14th European Lisp Symposium Call for Papers May 3 - May 4, 2021 Online / Everywhere http://www.european-lisp-symposium.org/2021 Sponsored by EPITA and RavenPack ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Invited Speakers ~~~~~~~~~~~~~~~~ tba Important Dates ~~~~~~~~~~~~~~~ - Submission deadline: March 7, 2021 - Author notification: April 6, 2021 - Final papers due: April 19, 2021 - Symposium: May 3 - May 4, 2021 Scope ~~~~~ The European Lisp Symposium is a premier forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp dialects, including Common Lisp, Scheme, Emacs Lisp, Clojure, Racket, ACL2, AutoLisp, ISLISP, Dylan, SKILL, Hy, Shen, Carp, Janet, uLisp, Picolisp, Gamelisp, TXR, and so on. We encourage everyone interested in Lisp to participate. The European Lisp Symposium 2021 invites high quality papers about novel research results, insights and lessons learned from practical applications, and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies Technical Program ~~~~~~~~~~~~~~~~~ We invite submissions in the following forms: * Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. * Demonstrations: Abstracts of up to 4 pages for demonstrations of tools, libraries, and applications. * Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. All submissions should be formatted following the ACM SIGS guidelines and include ACM Computing Classification System 2012 concepts and terms. Submissions should be uploaded to Easy Chair, at the following http://www.easychair.org/conferences/?conf=els2021 Note: to help us with the review process please indicate the type of submission by entering either "paper", "demo", or "tutorial" in the Keywords field. Programme Chair ~~~~~~~~~~~~~~~ Marco Heisig - FAU Erlangen-Nürnberg, Germany Local Chairs ~~~~~~~~~~~~ Michał Herda Mark Evenson - RavenPack Programme Committee ~~~~~~~~~~~~~~~~~~~ tba -- Didier Verna

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[EQL5] `init_lib_APP__ALL_SYSTEMS` strangeness
by Erik Winkels 18 Dec '20

18 Dec '20

Hi, My C++ knowledge is very basic and I'm running into something I do not understand. I build the RPM for my Sailfish OS app in a Docker environment I made: https://git.sr.ht/~aerique/sfosbid#codeeql5-sfoscode If I follow the steps in the "eql5-sfos" section on my home PC it works, but if I do the same on my PC at work (also in Docker) I get this failure: ;;; Loading "/home/erikw/projects/eql5-sfos-git/lisp/app.asd" ;;; ;;; Compiling /home/erikw/projects/eql5-sfos-git/lisp/qml.lisp. ;;; OPTIMIZE levels: Safety=3, Space=0, Speed=0, Debug=3 ;;; ;;; End of Pass 1. ;;; Finished compiling /home/erikw/projects/eql5-sfos-git/lisp/qml.lisp. ;;; ;;; Loading "/home/erikw/.cache/common-lisp/ecl-20.4.24-unknown-linux-armv7l/home/erikw/projects/eql5-sfos-git/lisp/qml.fas" ;;; ;;; Compiling /home/erikw/projects/eql5-sfos-git/lisp/app.lisp. ;;; OPTIMIZE levels: Safety=3, Space=0, Speed=0, Debug=3 ;;; ;;; End of Pass 1. ;;; Finished compiling /home/erikw/projects/eql5-sfos-git/lisp/app.lisp. ;;; g++ -c -pipe -O2 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -DQT_NO_DEBUG -DQT_QUICK_LIB -DQT_GUI_LIB -DQT_QML_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I. -isystem /usr/include/sailfishapp -isystem /usr/include/mdeclarativecache5 -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtQuick -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtQml -isystem /usr/include/qt5/QtNetwork -isystem /usr/include/qt5/QtCore -I. -I/usr/share/qt5/mkspecs/linux-g++ -o eql5-sfos.o src/eql5-sfos.cc g++ -Wl,-O1 -Wl,-rpath,/usr/share/eql5-sfos/lib -o eql5-sfos libapp.a eql5-sfos.o -lecl -leql5 -L. -lapp -lsailfishapp -pie -rdynamic -lmdeclarativecache5 -lQt5Quick -lQt5Gui -lQt5Qml -lQt5Network -lQt5Core -lGLESv2 -lpthread /srv/mer/toolings/SailfishOS-latest//opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: eql5-sfos.o: in function `main': eql5-sfos.cc:(.text.startup+0x2c8): undefined reference to `init_lib_APP__ALL_SYSTEMS' collect2: error: ld returned 1 exit status make: *** [Makefile:170: eql5-sfos] Error 1 An `objdump libapp.a` shows not `init_lib_APP__ALL_SYSTEMS` but `init_lib__ECLAQZDC4E1_UK8FKC51` and if I replace the former with the latter in `src/eql5-sfos.cc` everything compiles as it should! Anyone have any idea what might be causing this? Regards, Erik

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Monolithic build of static library
by Иван Трусков 16 Dec '20

16 Dec '20

As far as i can tell, my central registry isn't set up. After starting ECL and loading ASDF, when I check asdf:*central-registry*, it is empty. It must be noted, however, that to get to :str package that I want to use, I must load :ecl-quicklisp, which adds path ~/quicklisp/quicklisp to the central registry. In any way, it doesn't seem that there is code of uiop in there. I have tried compiling with listing "asdf", "uiop" as dependencies to no success. The problem still persists. > Do you have the source code of uiop available in the central registry? Quicklisp won't > download it, because asdf considers it being preloaded. Also, if so, do you have uiop > listed as a dependency? > Alternatively you may add asdf as a dependency to your system. >Regards, >Daniel > >-- >Daniel Kochmański ;; aka jackdaniel | Przemyśl, Poland >TurtleWare - Daniel Kochmański | www.turtleware.eu > >"Be the change that you wish to see in the world." - Mahatma Gandhi > >‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ >On Tuesday, 1 December 2020 22:01, Иван Трусков <trus19 at gmail.com> wrote: > >> Thank you very much. After rebuilding with newer version of ecl and with :init-name supplied compilation was a success. >> >> However, when i try to run the resulting executable, i get this error: >> >> Condition of type: SIMPLE-ERROR >> Package ((UIOP/STREAM . #<UIOP/STREAM package>)) referenced in compiled file >> NIL >> but has not been created >> >> Available restarts: >> >> 1. (IGNORE) Ignore the error, and try the operation again >> >> What should be done in this situation and how can i avoid it? Searching internet with this message did not yield any meaningful results (except for one Stackoverflow post that tells about having the same mistake). >> >> вт, 1 дек. 2020 г. в 22:15, Marius Gerbershagen <marius.gerbershagen at gmail.com>: >> >>> The generated library does indeed contain all systems that your library >>> contains on. The undefined references are init functions, which need to >>> be called via ecl_init_module after cl_boot to initialize the compiled >>> libraries (see >>> https://common-lisp.net/project/ecl/static/manual/System-building.html#Buil… >>> for more details). >>> >>> Since you didn't specify an explicit init name yourself, init functions >>> are automatically generated for each system contained in the final >>> library. When compiling a monolithic library, it is preferable to >>> specify an explicit init name yourself, for example as >>> >>> (asdf:make-build :embedded-console :type :static-library :move-here >>> #P"/my/output/dir" :monolithic t :init-name "init_lib_embedded_console") >>> >>> and then invoke it using >>> >>> extern void init_lib_embedded_console(cl_object); >>> /* ... */ >>> cl_boot(argc, argv); >>> ecl_init_module(NULL, init_lib_embedded_console); >>> >>> Am 29.11.20 um 13:17 schrieb Иван Трусков: >>>> Hello. I am trying to make a library that makes use of 'STR' package and >>>> link it into my C program. >>>> I presumed that using :monolithic t flag would result in the static >>>> library that contained all systems my library depends on. However it >>>> seems that is not the case. >>>> >>>> Here is my .asd file: >>>> >>>> (defsystem "embedded-console" >>>> :description "embedded console - ECL functions for smart snake game" >>>> :author "Ivan Truskov <trus19 at gmail.com <mailto:trus19 at gmail.com>>" >>>> :components ((:file "embedded-console")) >>>> :depends-on ("str")) >>>> >>>> I am compiling the library with command: >>>> >>>> ecl -norc -eval '(require :ecl-quicklisp)' >>>> -eval '(push \"/my/src/dir/\" asdf:*central-registry*)' >>>> -eval '(asdf:make-build :embedded-console :type >>>> :static-library :move-here \#P\"/my/output/dir}\" :monolithic t )' >>>> -eval '(quit)' >>>> >>>> However, when i try to link with resulting library, this is what i get: >>>> >>>> ... undefined reference to `init_lib_CL_PPCRE' >>>> ... undefined reference to `init_lib_BASE' >>>> ... undefined reference to `init_lib_CL_UNICODE' >>>> ... undefined reference to `init_lib_CL_PPCRE_UNICODE' >>>> ... undefined reference to `init_lib_CL_CHANGE_CASE' >>>> ... undefined reference to `init_lib_STR' >>>> ... undefined reference to `init_lib_EMBEDDED_CONSOLE' >>>> >>>> And indeed, when i run nm over the built file >>>> embedded-console--all-systems.a, this is output: >>>> >>>> eclinitVtJU9J.o: >>>> 0000000000000000 b Cblock.10857 >>>> U cl_boot >>>> U cl_symbols >>>> U _ecl_frs_push >>>> U ecl_init_module >>>> U ecl_make_codeblock >>>> U ecl_process_env >>>> U _GLOBAL_OFFSET_TABLE_ >>>> U init_lib_BASE >>>> U init_lib_CL_CHANGE_CASE >>>> U init_lib_CL_PPCRE >>>> U init_lib_CL_PPCRE_UNICODE >>>> U init_lib_CL_UNICODE >>>> U init_lib_EMBEDDED_CONSOLE >>>> 0000000000000000 T init_lib_EMBEDDED_CONSOLE__ALL_SYSTEMS >>>> U init_lib_STR >>>> 0000000000000110 T main_lib_EMBEDDED_CONSOLE__ALL_SYSTEMS >>>> U _setjmp >>>> nm: cl-ppcre.a: File format not recognized >>>> nm: base.a: File format not recognized >>>> nm: cl-unicode.a: File format not recognized >>>> nm: cl-ppcre-unicode.a: File format not recognized >>>> nm: cl-change-case.a: File format not recognized >>>> nm: str.a: File format not recognized >>>> nm: embedded-console.a: File format not recognized >>>> >>>> What am i doing wrong? What should i change to get static library >>>> containing all systems i am intending to use (and maybe only them, if >>>> possible)?

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[EQL5] Making a model available for a ListView in QML
by Erik Winkels 16 Dec '20

16 Dec '20

tl;dr:How can I use a list of strings defined in ECL as a ListView model in QML in Qt 5.6? === So I'm really not familiar with Qt, but since it is the GUI toolkit for Sailfish phones I have to use it. I'm trying to make a list of strings in ECL available as model to a ListView which has been defined in QML. I've been looking at examples, specifically this one: https://gitlab.com/eql/EQL5/-/blob/master/examples/M-modules/quick/item-mod… but I cannot use it directly because of some constraints in my environment and I also cannot wrap my head about how to solve it. This is the ListView in QML: SilicaListView { anchors.fill: parent //model: ListModel { id: listModel } model: 100 header: PageHeader { title: "Messages" } delegate: BackgroundItem { id: delegate Label { text: "Item " + index } onClicked: console.log("Clicked " + index) } ... And this is what I have in Lisp so far: ;;; Model ;;; ;;; https://gitlab.com/eql/EQL5/-/blob/master/examples/M-modules/quick/item-mod… (defun set-my-model () (qlet ((data (qvariant-from-value *pushover-messages* "QStringList"))) (|setContextProperty| (|rootContext| qml:*quick-view*) "myModel" data))) Taken straight from the example. However, I'm not sure what to do with the `qml:*quick-view*` The problem is my constraints: - I cannot start Qt from Lisp like in the example. There's a C++ initializer which start s up all the Sailfish OS stuff and EQL. So far I'm doing `Lisp.call`s from QML which works well enough. (Also see Renaud's template which I based all this on: https://redmine.casenave.fr/projects/eql5-sfos/repository/44/revisions/mast… ) - Sailfish OS only supports Qt 5.6 Thanks, Erik

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Example program
by Garrett Dangerfield 04 Dec '20

04 Dec '20

Is there an simple example program somewhere (I can't find one) that shows a function defined in a Lisp file and then used in a C/C++ file? With all the compile and linking commands needed to make it work? Ideally for Windows using Microsoft command line tools. Thanks much, Garrett Dangerfield.

2 3

Monolithic build of static library
by Иван Трусков 01 Dec '20

01 Dec '20

Hello. I am trying to make a library that makes use of 'STR' package and link it into my C program. I presumed that using :monolithic t flag would result in the static library that contained all systems my library depends on. However it seems that is not the case. Here is my .asd file: (defsystem "embedded-console" :description "embedded console - ECL functions for smart snake game" :author "Ivan Truskov <trus19(a)gmail.com>" :components ((:file "embedded-console")) :depends-on ("str")) I am compiling the library with command: ecl -norc -eval '(require :ecl-quicklisp)' -eval '(push \"/my/src/dir/\" asdf:*central-registry*)' -eval '(asdf:make-build :embedded-console :type :static-library :move-here \#P\"/my/output/dir}\" :monolithic t )' -eval '(quit)' However, when i try to link with resulting library, this is what i get: ... undefined reference to `init_lib_CL_PPCRE' ... undefined reference to `init_lib_BASE' ... undefined reference to `init_lib_CL_UNICODE' ... undefined reference to `init_lib_CL_PPCRE_UNICODE' ... undefined reference to `init_lib_CL_CHANGE_CASE' ... undefined reference to `init_lib_STR' ... undefined reference to `init_lib_EMBEDDED_CONSOLE' And indeed, when i run nm over the built file embedded-console--all-systems.a, this is output: eclinitVtJU9J.o: 0000000000000000 b Cblock.10857 U cl_boot U cl_symbols U _ecl_frs_push U ecl_init_module U ecl_make_codeblock U ecl_process_env U _GLOBAL_OFFSET_TABLE_ U init_lib_BASE U init_lib_CL_CHANGE_CASE U init_lib_CL_PPCRE U init_lib_CL_PPCRE_UNICODE U init_lib_CL_UNICODE U init_lib_EMBEDDED_CONSOLE 0000000000000000 T init_lib_EMBEDDED_CONSOLE__ALL_SYSTEMS U init_lib_STR 0000000000000110 T main_lib_EMBEDDED_CONSOLE__ALL_SYSTEMS U _setjmp nm: cl-ppcre.a: File format not recognized nm: base.a: File format not recognized nm: cl-unicode.a: File format not recognized nm: cl-ppcre-unicode.a: File format not recognized nm: cl-change-case.a: File format not recognized nm: str.a: File format not recognized nm: embedded-console.a: File format not recognized What am i doing wrong? What should i change to get static library containing all systems i am intending to use (and maybe only them, if possible)?

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ecl-devel December 2020