More on FreeBSD/amd64

[Gregory Wright]

Hi Ian,

On Apr 1, 2007, at 3:57 PM, Ian Lynagh wrote:

>
> Hi Gregory,
>
>> Is there a version of "print" I can use for debugging these  
>> libraries?
>> Just adding "print" causes a cycle in module dependencies.
>
> Ah, remove the #if/#endif around the definition of "puts", its export,
> and the GHC.Pack import in libraries/base/GHC/Handle.hs
>
No such luck.  I even copied "puts" into libraries/base/GHC/ 
ForeignPtr.hs
but I still get I cycle because I need withCString to define "puts":

Module imports form a cycle for modules:
   GHC.ForeignPtr
     imports: GHC.Show GHC.Err GHC.Ptr GHC.IOBase GHC.Base GHC.List
              Foreign.Storable Foreign.Ptr Foreign.C Control.Monad
   Foreign.C imports: Foreign.C.Error Foreign.C.String Foreign.C.Types
   Foreign.C.Error
     imports: GHC.Base GHC.Num GHC.IOBase Data.Maybe
              Foreign.Marshal.Error Foreign.C.String Foreign.C.Types  
Foreign.Ptr
              Foreign.Storable GHC.IOBase
   Foreign.C.String
     imports: GHC.Base GHC.IOBase GHC.Num GHC.Real GHC.List Data.Word
              Foreign.Storable Foreign.Ptr Foreign.C.Types  
Foreign.Marshal.Array
   Foreign.C.Types
   Data.Typeable
     imports: GHC.Arr GHC.Stable GHC.ForeignPtr GHC.Ptr GHC.STRef GHC.ST
              GHC.IOBase GHC.IOBase GHC.Real GHC.Float GHC.Num  
GHC.Err GHC.Show
              GHC.Base Data.List Data.Word Data.Int Data.Either  
Data.Maybe
              Data.HashTable
   Foreign.Marshal.Array
     imports: GHC.Base GHC.Err GHC.List GHC.Num GHC.IOBase
              Foreign.Marshal.Utils Foreign.Marshal.Alloc  
Foreign.Storable
              Foreign.Ptr Control.Monad
   Foreign.Marshal.Utils
     imports: GHC.Base GHC.Num GHC.Real GHC.IOBase Foreign.Marshal.Alloc
              Foreign.C.Types Foreign.Storable Foreign.Ptr Data.Maybe
   Foreign.Marshal.Alloc
     imports: GHC.Num GHC.Base GHC.Err GHC.Ptr GHC.Real GHC.IOBase
              Foreign.ForeignPtr Foreign.Storable Foreign.C.Types  
Foreign.Ptr
              Data.Maybe
   Foreign.ForeignPtr
     imports: GHC.ForeignPtr GHC.Err GHC.Num GHC.IOBase GHC.Base
              Foreign.Storable Foreign.Ptr
<<ghc: 150783504 bytes, 23 GCs, 1498056/2873752 avg/max bytes  
residency (3 samples), 19M in use, 0.00 INIT (0.00 elapsed), 0.48 MUT  
(1.76 elapsed), 0.06 GC (0.07 elapsed) :ghc>>
gmake[1]: *** [depend] Error 1
gmake: *** [boot] Error 1
gmake: Leaving directory `/tmp/ghc-6.4.2/libraries'


GHC.ForeignPtr does seem to be the root of much evil, since everything
seems to depend on it.  Any other hints on how I could get some output?

BTW, I have done some more tracing with gdb and I think I am a bit  
closer
to the underlying bug.  Before the bad call to newPinnedByteArray#,  
there
are a number of calls to functions bound to libc's regex functions  
(e.g., regcomp,
regexec). Since this is FreeBSD's libc, there may easily be  
differences from the much
better tested glibc.  It looks like the regex functions are being  
used to look
up package names, since I thought I saw a call from somewhere in  
Cabal.Distribution.
I need to check this once I get ghc-6.4.2 rebuilt.

Best Wishes,
Greg