June 2002 - Cvs-hugs - Haskell.org

cvs commit: hugs98/src ffi.c machdep.c
by nordland＠glass.cse.ogi.edu 24 Jun '02

24 Jun '02

nordland 2002/06/24 10:00:57 PDT Modified files: src ffi.c machdep.c Log: Small MacOS X tweak. Revision Changes Path 1.15 +6 -2 hugs98/src/ffi.c 1.55 +3 -3 hugs98/src/machdep.c

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Recent ffi commits
by Alastair Reid 23 Jun '02

23 Jun '02

You'll be glad to know that I'm going to let the repository recover for a couple of days while I hang out with my family. This also means I probably won't be able to fix anything I've broken for a couple of days so let's hope I didn't break anything too badly. Top items on my agenda when I get back to it are: - Making sure that the wrapper and dynamic import forms work The code is there - just need to check it works. - Test, test, test Sigbjorn promised to whack on it with HDirect generated code. Sounds like a great stress test. I should try building HGL using --target ffi. - Add something to the test suite. Has to be written so that the tests pass if ffi is disabled or not implemented. - Further contemplation of how to invoke the ffi generation and how/whether that should invoke the C compiler The current story is that hugs +G will generate a fresh .c file and link it to get a .so file for every .hs file it loads which contains ffi code. This will not look so clever when people install their code in read-only directories. - Autoconfiscation Mostly porting/stealing code from the GHC autoconf stuff. Code most needing fixed are HsFFI.h and the function compileAndLink in ffi.c - More libraries (CError, CTypes, ...) Would be easier if we had the hierarchial modules up and running since the GHC versions are close to what we want. Hmmm, didn't Sigbjorn commit a script to suck the tree over? - Finish the implementation of foreign export. The difficult thing about foreign export is that you can export a function at a more specific type than its Haskell type. For example: foreign export ccall "plus_Int" (+) :: Int -> Int -> Int The way to do this is to treat it as though the user had written: plus_Int :: Int -> Int -> Int plus_Int = (+) foreign export ccall plus_Int :: Int -> Int -> Int My problem is that I am completely baffled by the typechecker - I can't figure out how to do this. (Help with typeForeignExport in type.c very welcome.) (I'd feel bad about the length of this list of undone things if I didn't feel that the ffi is much closer to being usable than it was before I started.) I'm not sure how fast I'll get through this list though - I'm supposed to be choosing and booking a wedding venue and I did hardly any real paying work this week. So if anyone feels like claiming some of these tasks as their own, I'd be one happy Haggis. -- Alastair ps There's some longer term goals like: - Stripping the Hugs-specific code out of GreenCard - Removing any primitives that can be implemented by the ffi - Cleaning up internal naming schemes in Hugs. Hugs still talks about MallocPtrs - terminology that died at least 5 years ago. Addr is gone too. - differentiate between primitives (could be associated with any module) and foreign functions (associated with a very particular module). Take the opportunity to cleanup registerPrims which is pretty gross. But these can wait until the new ffi has proved itself.

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cvs commit: hugs98 Credits hugs98/docs ffi-notes.txt server.html server.tex hugs98/src machdep.c hugs98/src/unix README hugs98/tests Readme
by Alastair Reid 22 Jun '02

22 Jun '02

reid 2002/06/22 12:47:38 PDT Modified files: . Credits docs ffi-notes.txt server.html server.tex src machdep.c src/unix README tests Readme Log: Redirected all references to my Yale and Utah email addresses and URLs to point to alastair(a)reid-consulting-uk.ltd.uk http://www.reid-consulting-uk.ltd.uk/alastair/ Revision Changes Path 1.5 +2 -1 hugs98/Credits 1.6 +44 -47 hugs98/docs/ffi-notes.txt 1.2 +3 -3 hugs98/docs/server.html 1.4 +5 -7 hugs98/docs/server.tex 1.54 +3 -3 hugs98/src/machdep.c 1.3 +1 -1 hugs98/src/unix/README 1.8 +3 -1 hugs98/tests/Readme

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cvs commit: hugs98/src static.c storage.c
by Alastair Reid 22 Jun '02

22 Jun '02

reid 2002/06/22 10:01:35 PDT Modified files: src static.c storage.c Log: Fixed rather foolish bug in subText: subText builds a Text from a sub-string of a String. It did this by inserting a '\0' in the string, calling findText and restoring the string. This failed rather miserably if the String was the result of textToStr. Revision Changes Path 1.76 +4 -4 hugs98/src/static.c 1.44 +22 -8 hugs98/src/storage.c

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cvs commit: hugs98/src MkInstal.in
by Alastair Reid 21 Jun '02

21 Jun '02

reid 2002/06/21 16:49:53 PDT Modified files: src MkInstal.in Log: Tweaked install process so that make install doesn't try to run the ffi (so I hopefully don't scrog those on unsupported platforms - which is most platforms). Use 'make install_ffi' to do a normal install and then run 'hugs +G' on any foreign import code in the installed copy. Revision Changes Path 1.9 +6 -6 hugs98/src/MkInstal.in

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cvs commit: hugs98/tests testScript
by Alastair Reid 21 Jun '02

21 Jun '02

reid 2002/06/21 16:40:16 PDT Modified files: tests testScript Log: Added -W flag to test so that MarshalUtils.with doesn't get stomped on by the old-style implicit variable syntax. Can we make -W the default? Revision Changes Path 1.5 +2 -2 hugs98/tests/testScript

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cvs commit: hugs98/tests/ffi types_aux.h
by Alastair Reid 21 Jun '02

21 Jun '02

reid 2002/06/21 16:35:49 PDT Added files: tests/ffi types_aux.h Log: forgeto

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cvs commit: hugs98/lib/exts CString.hs Storable_aux.h .cvsignore CTypes.hs MarshalAlloc.hs MarshalUtils.hs Storable.hs Storable_aux.c hugs98/src HsFFI.h MkInstal.in connect.h ffi.c hugs.c machdep.c static.c hugs98/tests Readme config.in testScript ...
by Alastair Reid 21 Jun '02

21 Jun '02

reid 2002/06/21 16:22:01 PDT Modified files: lib/exts .cvsignore CTypes.hs MarshalAlloc.hs MarshalUtils.hs Storable.hs Storable_aux.c src HsFFI.h MkInstal.in connect.h ffi.c hugs.c machdep.c static.c tests Readme config.in testScript tests/ffi FileIO.hs FileIO.output Forms.hs Sin.hs Types.hs forms_aux.h types_aux.c Added files: lib/exts CString.hs Storable_aux.h Log: Big changes: 1) Hugs +G only generates code for files specified on command line. 2) Hugs now #includes the header file if specified. 3) Hugs will report use of lib specs as an error. (You can turn this off if you #define SILENTLY_IGNORE_FFI_LIB_SPECS) 4) Hugs now ignores lib specs 5) The +L flag can be used to specify things you want added to the compilation command line. This would typically be the things you'd have specified in your lib specs but it might also be compiler flags, preprocessor flags, etc. 6) Hugs uses a single global namespace for any C code called by ffi code. 7) make install applies hugs +G to files in lib/exts which contain ffi code (The list of files is maintained manually both to keep the makefile portable and because some libraries need +L arguments.) build_libexts :: hugs$(EXE) install_include ./hugs +q -P../lib:../lib/exts Storable +G +L"Storable_aux.c" < /dev/null ./hugs +q -P../lib:../lib/exts MarshalAlloc +G < /dev/null ./hugs +q -P../lib:../lib/exts MarshalUtils +G < /dev/null The need to use </dev/null suggests that +G should imply quitting before reading commands and maybe +q too. 8) You now have to make install before running the testsuite Also: Added CString.hs Made CString.hs marginally more like what it should be. Revision Changes Path 1.2 +3 -0 hugs98/lib/exts/.cvsignore 1.2 +8 -1 hugs98/lib/exts/CTypes.hs 1.2 +3 -3 hugs98/lib/exts/MarshalAlloc.hs 1.2 +2 -2 hugs98/lib/exts/MarshalUtils.hs 1.5 +51 -51 hugs98/lib/exts/Storable.hs 1.3 +18 -18 hugs98/lib/exts/Storable_aux.c 1.5 +18 -19 hugs98/src/HsFFI.h 1.8 +8 -3 hugs98/src/MkInstal.in 1.39 +3 -2 hugs98/src/connect.h 1.14 +41 -36 hugs98/src/ffi.c 1.85 +20 -7 hugs98/src/hugs.c 1.53 +5 -5 hugs98/src/machdep.c 1.75 +18 -16 hugs98/src/static.c 1.7 +2 -2 hugs98/tests/Readme 1.2 +5 -0 hugs98/tests/config.in 1.4 +4 -8 hugs98/tests/testScript 1.2 +17 -15 hugs98/tests/ffi/FileIO.hs 1.2 +9 -11 hugs98/tests/ffi/FileIO.output 1.2 +9 -17 hugs98/tests/ffi/Forms.hs 1.2 +2 -2 hugs98/tests/ffi/Sin.hs 1.2 +16 -16 hugs98/tests/ffi/Types.hs 1.2 +2 -1 hugs98/tests/ffi/forms_aux.h 1.2 +19 -3 hugs98/tests/ffi/types_aux.c

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cvs commit: hugs98/src static.c
by Sigbjorn Finne 21 Jun '02

21 Jun '02

sof 2002/06/21 13:53:33 PDT Modified files: src static.c Log: checkExport: for Ty(..), add the in-scope constructors onto the export list also Revision Changes Path 1.74 +6 -2 hugs98/src/static.c

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cvs commit: hugs98/lib/exts .cvsignore
by Alastair Reid 20 Jun '02

20 Jun '02

reid 2002/06/20 09:15:36 PDT Added files: lib/exts .cvsignore Log: Forget the ffi

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