On 24/09/2009 09:55, Barney Stratford wrote:
Latest update on getting GHC working 64-bit on Snow Leopard. I've been
building 6.8.3, simply because it was the version I had running before
so might give fewer problems.
To get the compiler working, apply this patch (which I borrowed from the
Darcs repository):
diff -uit a/compiler/cmm/CLabel.hs b/compiler/cmm/CLabel.hs
--- a/compiler/cmm/CLabel.hs
+++ b/compiler/cmm/CLabel.hs
@@ -816,6 +816,10 @@
pprDynamicLinkerAsmLabel :: DynamicLinkerLabelInfo -> CLabel -> SDoc
#if x86_64_TARGET_ARCH && darwin_TARGET_OS
+pprDynamicLinkerAsmLabel CodeStub lbl
+ = char 'L' <> pprCLabel lbl <> text "$stub"
+pprDynamicLinkerAsmLabel SymbolPtr lbl
+ = char 'L' <> pprCLabel lbl <> text "$non_lazy_ptr"
pprDynamicLinkerAsmLabel GotSymbolPtr lbl
= pprCLabel lbl <> text "@GOTPCREL"
pprDynamicLinkerAsmLabel GotSymbolOffset lbl
Make sure you have a working 32-bit GHC as well as libraries (libgmp,
etc).for both 32 and 64-bit architectures. Then say
./configure --build=x86_64-apple-darwin --host=x86_64-apple-darwin
--target=x86_64-apple-darwin
make
It will compile an x86_64 GHC for you, happily unaware that the GHC
you're using for the build is a 32-bit one. The stage1 compiler is, of
course, a 32-bit binary that produces 64-bit binaries.
I found that the resulting compiler can build itself (stage3) and can
say Hello World, so it looks like it works correctly. I've still not got
GHCi working, though.
I've managed to narrow down the source of the trouble with the linker in
GHCi, and it looks like there are some bugs as well as missing parts,
which is why it kept launching itself to the moon. Still working on that
one: patch to follow. For now, you can at least compile your code and
run it non-interactively.
Nice going - sounds like you've got the furthest so far. Others have
been going via an unregisterised build, which seems to be more
problematic (though it shouldn't be).
It should be possible to use your 6.8.3 to bootstrap your way to 6.12.1,
have you tried that? I doubt it will fix your GHCi problems, though.
But it should be possible to then make a distribution for others to try.
Cheers,
Simon
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