HeapStackCheck.cmm

[Carter Schonwald]

are you using GCC or Clang, what versions are they?


On Tue, Dec 10, 2013 at 4:43 PM, Alexander Pakhomov <ker0sin at yandex.ru>wrote:

> Thanks. I think preprocessor dump could help me:
> cpp -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header
> -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS
> -Irts/dist/build -Irts/dist/build/autogen         rts/HeapStackCheck.cmm >
> cpp_dump
> That is ghc-stage1 -> cpp and all options that cpp doesn't accept removed.
> I hope ghc preprocessor is compatible with system C preprocessor.
>
> 11.12.2013, 01:06, "Simon Marlow" <marlowsd at gmail.com>:
> > On 10/12/13 00:35, Alexander Pakhomov wrote:
> >
> >>  Hi. Trying to compile ghc HEAD on OpenBSD I got an error:
> >>  rts/HeapStackCheck.cmm:97:18: parse error on input `['
> >>  The code is following:
> >>    96         if (HpAlloc <= BLOCK_SIZE
> >>    97             && bdescr_link(CurrentNursery) != NULL) {
> >>  which preprocesses to:
> >>           if (HpAlloc <= (1<<12)
> >>               && b0[CurrentNursery+15] != (0::bits64)) {
> >>  This is the first occurrence of b0 in preprocessed file. I believe
> that it is due to undefined b0.
> >>  Command that fails is:
> >>  "inplace/bin/ghc-stage1" -static  -H32m -O -Iincludes -Iincludes/dist
> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header
> -Irts -Irts/dist/build -DCOMPILING_RTS -package-name rts -dcmm-lint      -i
> -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build
> -Irts/dist/build/autogen           -O2    -c rts/HeapStackCheck.cmm -o
> rts/dist/build/HeapStackCheck.o
> >>  To preprocess do the following:
> >>  cpp -O -Iincludes -Iincludes/dist
> -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header
> -Irts -Irts/dist/build -DCOMPILING_RTS -Irts/dist/build
> -Irts/dist/build/autogen         rts/HeapStackCheck.cmm | less
> >>
> >>  Can you please find source of b0 in preprocessed file?
> >
> > I think this means that something went wrong when generating
> > DerivedConstants.h, which is where the definition of bdescr_link() comes
> > from.  In my build, I have the following, in the file
> > includes/dist-derivedconstants/header/:
> >
> > #define OFFSET_bdescr_link 16
> > #define REP_bdescr_link b64
> > #define bdescr_link(__ptr__) REP_bdescr_link[__ptr__+OFFSET_bdescr_link]
> >
> > This is auto-generated by the program in utils/deriveConstants.  This
> > used to be a C program, but nowadays it's a Haskell program that
> > generates a C program for reasons that I forget.  Anyway, your problem
> > is somewhere in there... see if you can find out where by dumping out
> > intermediate files and so forth.  If you get stuck, tell us where you
> > get to and we'll try to help some more.
> >
> > Cheers,
> > Simon
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