February 2019 - ecl-devel - mailman3.common-lisp.net

Is this thing on? Cross-compiling for ARM
by Erik Winkels 26 Sep '20

26 Sep '20

Hi all, Not sure if this is still the place to be for ECL questions but here it goes: I'm having issues cross-compiling ECL for ARM and since this is actually the first time I'm cross-compiling stuff ever I'm kinda stuck. I want to cross-compile for ARM, *but* it is not for Android it is for Sailfish OS. There's an (unofficial) ECL package available for it but I cannot find a way to contact the author and also don't want to depend on it. On my Void Linux machine I've installed `cross-arm-linux-gnueabi` and can do a `./configure --host=arm-linux-gnueabi` but when I do `make` I get the following errors: ``` dpp: /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d -> list.o.c Unknown symbol: mp::compare-and-swap-car Unknown symbol: mp::atomic-incf-car Unknown symbol: mp::compare-and-swap-cdr Unknown symbol: mp::atomic-incf-cdr /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d: In function 'mp_compare_and_swap_car': /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d:670:26: error: 'unknown' undeclared (first use in this function) return ecl_compare_and_swap(&ECL_CONS_CAR(x), old, new); ^~~~~~~ /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d:670:26: note: each undeclared identifier is reported only once for each function it appears in /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d: In function 'mp_atomic_incf_car': /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d:678:26: error: 'unknown' undeclared (first use in this function) return ecl_atomic_incf(&ECL_CONS_CAR(x), increment); ^~~~~~~ /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d: In function 'mp_compare_and_swap_cdr': /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d:686:26: error: 'unknown' undeclared (first use in this function) return ecl_compare_and_swap(&ECL_CONS_CDR(x), old, new); ^~~~~~~ /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d: In function 'mp_atomic_incf_cdr': /home/brainrot/projects/eclrepl/3rd-party/ecl-git/src/c/list.d:694:26: error: 'unknown' undeclared (first use in this function) return ecl_atomic_incf(&ECL_CONS_CDR(x), increment); ^~~~~~~ make[2]: *** [Makefile:88: list.o] Error 1 make[2]: Leaving directory '/home/brainrot/projects/eclrepl/3rd-party/ecl-git/build/c' make[1]: *** [Makefile:144: libeclmin.a] Error 2 make[1]: Leaving directory '/home/brainrot/projects/eclrepl/3rd-party/ecl-git/build' make: *** [Makefile:72: all] Error 2 ``` I get the feeling I'm forgetting some necessary steps. Thanks, Erik

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Re: Is this thing on? Cross-compiling for ARM
by Renaud Casenave-Péré 24 Feb '19

24 Feb '19

On Tue, Feb 19 2019, PR wrote: > 2019-02-19 2:06 GMT+01:00, Renaud Casenave-Péré <renaud(a)casenave-pere.fr>: >> I still need to find a way to efficiently use slime with this setup. > > Just thinking loud: couldn't the approach used in EQL5-Android be > ported to Sailfish (I mean for Slime), because on Android not only > Lisp but also the QML files can be reloaded live on the device, which > is very convenient (like in example "my" from EQL5-Android): > > https://gitlab.com/eql/EQL5-Android/tree/master/examples/my That is indeed a pretty nice solution, thanks! -- Renaud Casenave-Péré

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Catching SIGPIPE
by Gunter Königsmann 15 Feb '19

15 Feb '19

Dear all, Maxima (which is written in lisp) connects to its front-end using a network socket. stdout and stderr of the lisp are redirected to this socket. If the front-end dies unexpectedly this seems to cause ECL to output an error message which (since it cannot be output) causes an error message which causes... On gcl maxima just catches the SIGPIPE signal and exits if the pipe breaks. ECL offers ECL_OPT_TRAP_SIGPIPE but I don't know what to do with it. Could anyone give me a hand? the function that sets up the server is: (defun setup-client (port &optional (host "localhost")) ;; The following command has to be executed on windows before ;; the connection is opened. If it isn't the first unicode ;; character maxima wants to send causes sbcl to wait indefinitely. #+sbcl (setf sb-impl::*default-external-format* :utf-8) (multiple-value-bind (sock condition) (ignore-errors (open-socket host port)) (unless sock ; It appears that we were unable to open a socket or connect to the ; specified port. (mtell (intl:gettext "~%Unable to connect Maxima to port ~:M.~%") port) (mtell (intl:gettext "Error: ~A~%") condition) ($quit)) #+gcl (setq si::*sigpipe-action* 'si::bye) (setq *socket-connection* sock) (setq $old_stderr *error-output* $old_stdout *standard-output*) #+ecl (setq *old-stdin* *standard-input* *old-stdout* *standard-output* *old-sterr* *error-output* *old-term-io* *terminal-io* *old-debug-io* *debug-io*) (setq *standard-input* sock) (setq *standard-output* sock) (setq *error-output* sock) (setq *terminal-io* sock) (setq *trace-output* sock) (format t "pid=~a~%" (getpid)) (force-output sock) (setq *debug-io* sock)) (values)) Kind regards, Gunter.

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least-positive vs least-positive-normalized
by Raymond Toy 13 Feb '19

13 Feb '19

With ecl 16.1.3, I noticed that least-positive-double-float and least-positive-normalized-double-float are exactly equal. This is allowed, but ecl can work with denormals since (/ least-positive-normalized-double-float 10) is printed correctly. Maybe these two values should be different? Or maybe ecl really meant to turn on flush-to-zero so that no denormals can occur? -- Ray?

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specifying custom location for ecl-quicklisp packages
by Dima Pasechnik 03 Feb '19

03 Feb '19

Dear all, we have trouble understanding how ecl-quicklisp can be configured to install packages at a custom location. Currently, either (require :asdf) (asdf:load-system :ecl-quicklisp) or (require :ecl-quicklisp) starts installing things into ~/quicklisp/ no matter what one tries. E.g. quicklisp FAQ tells about (quicklisp-quickstart:install :path ".quicklisp/") but this seems to need to be evaluated much earlier than (require :ecl-quicklisp)... Does this mean one needs to change the ECL installation procedure to take care of this? Thanks Dima

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[Final CfP] 12th European Lisp Symposium, deadline extension
by Didier Verna 01 Feb '19

01 Feb '19

ELS'19 - 12th European Lisp Symposium Hotel Bristol Palace Genova, Italy April 1-2 2019 In cooperation with: ACM SIGPLAN In co-location with <Programming> 2019 Sponsored by EPITA and Franz Inc. http://www.european-lisp-symposium.org/ Recent news: - Submission deadline extended to Friday February 8. - Keynote abstracts now available. - <Programming> registration now open: https://2019.programming-conference.org/attending/Registration - Student refund program after the conference. The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 12th European Lisp Symposium 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 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 2 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. The symposium will also provide slots for lightning talks, to be registered on-site every day. 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 address: https://www.easychair.org/conferences/?conf=els2019 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. Important dates: - 08 Feb 2019 Submission deadline (*** extended! ***) - 01 Mar 2019 Notification of acceptance - 18 Mar 2019 Final papers due - 01-02 Apr 2019 Symposium Programme chair: Nicolas Neuss, FAU Erlangen-Nürnberg, Germany Programme committee: Marco Antoniotti, Universita Milano Bicocca, Italy Marc Battyani, FractalConcept, France Pascal Costanza, IMEC, ExaScience Life Lab, Leuven, Belgium Leonie Dreschler-Fischer, University of Hamburg, Germany R. Matthew Emerson, thoughtstuff LLC, USA Marco Heisig, FAU, Erlangen-Nuremberg, Germany Charlotte Herzeel, IMEC, ExaScience Life Lab, Leuven, Belgium Pierre R. Mai, PMSF IT Consulting, Germany Breanndán Ó Nualláin, University of Amsterdam, Netherlands François-René Rideau, Google, USA Alberto Riva, Unversity of Florida, USA Alessio Stalla, ManyDesigns Srl, Italy Patrick Krusenotto, Deutsche Welle, Germany Philipp Marek, Austria Sacha Chua, Living an Awesome Life, Canada Search Keywords: #els2019, ELS 2019, ELS '19, European Lisp Symposium 2019, European Lisp Symposium '19, 12th ELS, 12th European Lisp Symposium, European Lisp Conference 2019, European Lisp Conference '19 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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