GHC 6.8.1 port on FreeBSD-amd64?

[Matthias Kilian]

[Note: already shortly discussed with Wilhelm]

On Fri, Nov 23, 2007 at 12:30:06PM +0000, Wilhelm B. Kloke wrote:
> > ../../compiler/stage1/ghc-inplace -package-name unix-2.2.0.0 -hide-all-packages -i -idist/build/autogen -idist/build -i. -Idist/build -Iinclude -#include "HsUnix.h" -#include "execvpe.h" -odir dist/build -hidir dist/build -stubdir dist/build -package base-3.0.0.0 -package directory-1.0.0.0 -O -XCPP -XForeignFunctionInterface -idist/build  -H32m -O0 -fasm -Rghc-timing -keep-hc-files -O -c dist/build/System/Posix/Process.hs -o dist/build/System/Posix/Process.o  -ohi dist/build/System/Posix/Process.hi
> > Prologue junk?:         .type   s32x_ret, @function
> > s32x_ret:
> >         pushl   %ebp
> >         movl    %esp, %ebp

I see nearly the same problem with ghc-6.8.2 on OpenBSD, using the
gcc-3.3.5 included in its base system.

Regardless of wether there's something wrong with the generated
code or wether it's just a bug in the mangler, it's possible to
build Process.c with -fviaC *and* -O0.[1]

For now, I'm able to build a HC file bundle with this settings in
build.mk and running "gmake stage1 hc-file-bundle":

	SRC_HC_OPTS=    -H64 -O -fvia-C -keep-hc-files
	GhcLibHcOpts=   -O0	# Workaround the mangler problem
	GhcLibWays=
	GhcRTSWays=
	SplitObjs=      NO

I'd appreciate any reports wether people see the same problem on
other systems (if so: what gcc version are you using?) and wether
GhcLibHcOpts=-O0 fixes it.

Ciao,
	Kili

[1] BTW: what's the point of using -fasm with -keep-hc-files? IMHO,
it should be -fviaC -keep-hc-files. Someone let me know if I should
correct this in the wiki.


ps: yes, I'm slowly trying to bring HC bootstrap back to work. It's
a must-have for the OpenBSD port. Apart from the HC file bundle,
this will require some more hacking especially on library/Makefile
and the Cabal-generated GNUmakefiles (and/or Makefile.local).

pps: I guess, cvs-ghc would be the more correct list for sending
patches and discussing the bootstrapping stuff, right?