April 2002 - Glasgow-haskell-users

-pgmc flag in 5.02.2
by Ashley Yakeley 03 Apr '02

03 Apr '02

I notice -pgmc prog doesn't work in GHC 5.02.2 (works OK in 5.03). Do I want to do -pgmc=prog for the -pgm flags? And if so, will that also work in 5.03 and later versions? -- Ashley Yakeley, Seattle WA

2 1

GHC/MacOS X 'foreign export dynamic'
by Ashley Yakeley 02 Apr '02

02 Apr '02

At 2002-03-22 15:52, Wolfgang Thaller wrote: >A tar.gz file (14.5MB) of GHC for MacOS X is now available for download at: >http://www.foldr.org/Software/Haskell/ghc/ghc-5.03-13032002-MacOSX.tar.gz I think there's a bug in the support for 'foreign export dynamic'. The enclosed code crashes intermittently. Sometimes it does this: $ ./FEDBug Haskell: making callback Haskell: calling callback native: calling callback Haskell: haskellFunction native: done calling callback Haskell: done And sometimes it does this: $ ./FEDBug Haskell: making callback Haskell: calling callback native: calling callback Illegal instruction It's about 50/50 on my MacOS X machine. The same code never crashes on my Linux/i386 box. -- Ashley Yakeley, Seattle WA

1 0

JVM-Bridge Current Status
by Ashley Yakeley 02 Apr '02

02 Apr '02

1. Changes So Far The following changes have been checked into CVS since the 0.1 release: Native/ * MacOS X support * Beginnings of mingw32 support * New Sun 1.4 JVM * Now installs in /usr/lib/jvm-bridge/ * ExecuteFunction bindings now done at run-time Haskell/ * MacOS X support * 'Haskell' now a separate Autotools project installing in /usr/lib/jvm-bridge/ * New array region access functions * Correct array types in autogenerated class interfaces * Subtype parameters in autogenerated class interfaces * VMLayer 'env' parameter now implicit * Various changes in the BasicLayer * new native StartExecuteFunction function called by getExecuteFunctionClass, defineCallbackClass I recommend using GHC 5.02.2 or later. Possibly it might work with 5.02. 2. Current Work MacOS X callback support is buggy, and I'm currently working on it. It might a problem with ghc-5.03-13032002-MacOSX (foreign export dynamic), or it might be a bug in JVM-Bridge. Thomas Pasch <extern.thomas.pasch(a)volkswagen.de> has done some work on getting JVM-Bridge to compile under mingw32. I have integrated some of his patches. I do not have a Windows machine myself. I would like to do a 0.2 release, say when both examples work on all three platforms. 3. I have created a new mailing list: <http://lists.sourceforge.net/lists/listinfo/jvm-bridge-devel> If you are using JVM-Bridge I encourage you to subscribe. -- Ashley Yakeley, Seattle WA

1 0