- ghc-devs - Haskell.org

5144: Pattern synonyms -- help needed to sort out exports
by Dr. ERDI Gergo 08 Aug '13

08 Aug '13

Hi, Last week, I started implementing http://ghc.haskell.org/trac/ghc/ticket/5144 "Pattern synonyms". I'm using http://ghc.haskell.org/trac/ghc/wiki/PatternSynonyms for the details, and so far I have "pattern-only synonyms" working, with most of the infrastructure also laid down for the "simple pattern synonyms". My work is avalable at https://github.com/gergoerdi/ghc.git in the pattern-synonyms branch. My plan is to get the simple pattern synonyms stuff working as well, and then submit it as a first cut. Before I formally submit my patches for review to this mailing list, though, there is one thing that's got me stumped: allowing pattern synonyms to be exported. I thought it would just work if I make sure the pattern synonym names (which are Conids) end up in the tcg_exports field of the TcGblEnv. However, this is not the case. Could someone point me in the right direction please on how to make these new declarations exportable? Thanks, Gergo -- .--= ULLA! =-----------------. \ http://gergo.erdi.hu \ `---= gergo(a)erdi.hu =-------' All C programs are derived from `Hello World'.

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Warnings when pushing to testsuite
by Jan Stolarek 08 Aug '13

08 Aug '13

When I'm pushing to testsuite repo I get lots of warnings: [t-jastol@cam-05-unx : ~/ghc-working/testsuite] git push origin master Counting objects: 13, done. Delta compression using up to 32 threads. Compressing objects: 100% (7/7), done. Writing objects: 100% (7/7), 783 bytes, done. Total 7 (delta 5), reused 0 (delta 0) remote: To git@github.com:ghc/testsuite.git remote: ccc29fb..67d6a19 master -> master remote: chmod: changing permissions of `/home/darcs/testsuite.git': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/packed-refs': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/applypatch-msg': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/pre-rebase': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/post-update': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/post-receive': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/git-notifier': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/pre-commit': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/git-notifier-OLD': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/samples': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/prepare-commit-msg': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/commit-msg': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/post-commit': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/update': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/pre-applypatch': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/hooks/post-receive-SAVE': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/HEAD': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/objects': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/objects/27': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/objects/27/d4d6e8924d3dabf66308378536c89cb8a9a4f8': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/objects/27/a92422f56493b0d98793f6ce02bf83b981c09b': Operation not permitted -- Lots more remote: chmod: changing permissions of `/home/darcs/testsuite.git/logs/refs/heads/at-defaults': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/config': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/branches': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/.git-notifier.dat': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/description': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/git-notifier.log': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/refs': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/refs/heads': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/refs/tags': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/info': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/info/exclude': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/info/refs': Operation not permitted remote: chmod: changing permissions of `/home/darcs/testsuite.git/ghc-notifier.log': Operation not permitted To ssh://jstolarek@darcs.haskell.org/srv/darcs/testsuite.git 9ba44e3..67d6a19 master -> master Notice that warnings refer to github: remote: To git@github.com:ghc/testsuite.git remote: ccc29fb..67d6a19 master -> master Any idea why this happens? I don't get warnings when pushing to main GHC repo. Janek

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s/libraries/packages/g in ghc.git/.gitmodules
by Herbert Valerio Riedel 07 Aug '13

07 Aug '13

Hello GHC devs, in the current ghc.git's .gitmodules file, the entries look like ,---- | [submodule "libraries/binary"] | path = libraries/binary | url = http://darcs.haskell.org/libraries/binary.git/ `---- I'd like to normalize the urls above to use the http://darcs.haskell.org/packages/ scheme instead to match what's used in the 'packages' file as remotepaths. (the way I understand it, the /libraries/ folder is an historical artifact, and should have been obsolete for a couple of years by now -- so the new gitolite setup won't support the /libraries/ alias anymore) ...is there any reason you can think of, I should not perform this modification to the .gitmodules file? cheers, hvr

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Error on push to GHC git repo due to Trac?
by Erik de Castro Lopo 07 Aug '13

07 Aug '13

Hi all, Got the error below. Erik bash: warning: setlocale: LC_ALL: cannot change locale (en_AU.UTF-8) Counting objects: 5, done. Delta compression using up to 4 threads. Compressing objects: 100% (3/3), done. Writing objects: 100% (3/3), 412 bytes | 0 bytes/s, done. Total 3 (delta 2), reused 0 (delta 0) remote: /bin/bash: warning: setlocale: LC_ALL: cannot change locale (en_AU.UTF-8) remote: To git@github.com:ghc/ghc.git remote: 9082111..0daee29 master -> master remote: Traceback (most recent call last): remote: File "./hooks/post-receive-trac", line 202, in <module> remote: handle_ref(env=env, *line.split()) remote: File "./hooks/post-receive-trac", line 163, in handle_ref remote: db = env.get_db_cnx() remote: File "/usr/lib/python2.7/dist-packages/trac/env.py", line 329, in get_db_cnx remote: return get_read_db(self) remote: File "/usr/lib/python2.7/dist-packages/trac/db/api.py", line 90, in get_read_db remote: return _transaction_local.db or DatabaseManager(env).get_connection() remote: File "/usr/lib/python2.7/dist-packages/trac/db/api.py", line 152, in get_connection remote: return self._cnx_pool.get_cnx(self.timeout or None) remote: File "/usr/lib/python2.7/dist-packages/trac/db/pool.py", line 227, in get_cnx remote: return _backend.get_cnx(self._connector, self._kwargs, timeout) remote: File "/usr/lib/python2.7/dist-packages/trac/db/pool.py", line 147, in get_cnx remote: raise TimeoutError(errmsg) remote: trac.db.pool.TimeoutError: Unable to get database connection within 0 seconds. (TracError: The user erikd requires read _and_ write permissions to the database file /home/trac/ghc/db/trac.db and the directory it is located in.) To darcs.haskell.org:/srv/darcs/ghc.git 9082111..0daee29 master -> master -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/

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Building GHC on Mac stops
by Kazu Yamamoto 06 Aug '13

06 Aug '13

Hi, I'm using GHC head (32bit) on Mac. Recently, building GHC head stops: ---- % make maintainer-clean; perl boot; ./configure --prefix=/ghc-head; make -j3 ranlib: file: .libs/libgmp.a(mp_clz_tab.o) has no symbols ranlib: file: .libs/libgmp.a(obprintf.o) has no symbols ranlib: file: .libs/libgmp.a(obvprintf.o) has no symbols ranlib: file: .libs/libgmp.a(obprntffuns.o) has no symbols ranlib: file: .libs/libgmp.a(repl-vsnprintf.o) has no symbols libtool: link: rm -fr .libs/libgmp.lax libtool: link: ( cd ".libs" && rm -f "libgmp.la" && cp -p "../libgmp.la" "libgmp.la" ) cp libraries/integer-gmp/gmp/gmpbuild/gmp.h libraries/integer-gmp/gmp/ cp libraries/integer-gmp/gmp/gmpbuild/.libs/libgmp.a libraries/integer-gmp/gmp/ inplace/bin/mkdirhier libraries/integer-gmp/gmp/objs cd libraries/integer-gmp/gmp/objs && /usr/bin/ar x ../libgmp.a ranlib libraries/integer-gmp/gmp/libgmp.a ranlib: file: libraries/integer-gmp/gmp/libgmp.a(mp_clz_tab.o) has no symbols ranlib: file: libraries/integer-gmp/gmp/libgmp.a(obprintf.o) has no symbols ranlib: file: libraries/integer-gmp/gmp/libgmp.a(obvprintf.o) has no symbols ranlib: file: libraries/integer-gmp/gmp/libgmp.a(obprntffuns.o) has no symbols ranlib: file: libraries/integer-gmp/gmp/libgmp.a(repl-vsnprintf.o) has no symbols make: *** [all] Error 2 % ---- One more "make -j3" finishes the building. I'm sure that this does not happen before. Are there any guys who get this problem? --Kazu

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ld.gold
by Kazu Yamamoto 06 Aug '13

06 Aug '13

Hi, If I understand correctly, GHC head supports ld.gold (on Linux). But GHC got the following error: ---- % ghc -pgml=ld.gold -threaded Witty.hs [1 of 9] Compiling Types ( Types.hs, Types.o ) ... [9 of 9] Compiling Main ( Witty.hs, Witty.o ) Linking Witty ... <no location info>: Warning: Couldn't figure out linker information! Make sure you're using GNU ld, GNU gold or the built in OS X linker, etc. ld.gold: -Wl,-u,ghczmprim_GHCziTypes_Izh_static_info: unknown option ld.gold: use the --help option for usage information ---- How can I provide necessary linker information to GHC? --Kazu

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"~~" in sync-all
by Kazu Yamamoto 06 Aug '13

06 Aug '13

Hi, A recent change[1] to sync-all introduces the "~~" operator of Perl. It seems to me that this operator is not supported by old Perl. % perl --version This is perl, v5.8.8 built for i386-linux-thread-multi % ./sync-all -r git://github.com/ghc --testsuite get syntax error at ./sync-all line 904, near ""pull" ~" BEGIN not safe after errors--compilation aborted at ./sync-all line 906. Sorry for using old Perl but I appreciate if this operator will be replaced with others. [1] commit 968998e69a745e38a47f4771a3244008f19ebc4a Author: Erik de Castro Lopo <erikd(a)mega-nerd.com> Date: Mon Aug 5 11:22:04 2013 +1000 --Kazu

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Quick Cmm question
by Jan Stolarek 05 Aug '13

05 Aug '13

I have a question about this piece of Cmm code: cJI: R1 = _sGG::P32; call (stg_gc_enter_1)(R1) args: 4, res: 0, upd: 4; cJK: ... Does the call to stg_gc_enter_1 return to cJK: a) never; b) sometimes; c) always ? I'm looking at the implementation in rts/HeapStackCheck.cmm but I don't know the meaning of `jump stg_returnToSched [R1];` at the and of stg_gc_noregs. Any help will be appreciated. Janek

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GHC git server issue : warning: setlocale: LC_ALL: cannot change locale (en_AU.UTF-8)
by Erik de Castro Lopo 05 Aug '13

05 Aug '13

Hi all, I'm getting the above warning messahe every time I pull from the main GHC git repo. The strange thing is that this only happens on the GHC repo, on a whole bunch of others I get no such warning. After some pretty rigorous investigation I concluded that this is actually a issues with the GHC sit server. Since I'm doing the pull over ssh, ssh passes my environment (include LC_*) to the server, but the server doesn't support en_AU.UTF-8. To explore further, I sshed into darcs.haskell.org and it seems that locales are completely broken on this machine. Not even en_US.UTF-8 is support. I suppose its not a big deal but it would be nice to fix so no one else wastes any time debugging this. Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/

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libffi-tarballs
by Richard Eisenberg 05 Aug '13

05 Aug '13

After the libffi-tarballs submodule was added, I did a ./sync-all pull, a ./sync-all get, and a git submodule update. Everything builds just fine, but I get this answer from git status: # On branch master # Untracked files: # (use "git add <file>..." to include in what will be committed) # # libffi-tarballs/ nothing added to commit but untracked files present (use "git add" to track) Is this expected? How can I fix this? Thanks! Richard

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