I think you should look at
includes/dist-derivedconstants/header/DerivedConstants.h first, look for
the lines that I pasted in my email below. The problem is likely in
there, but the file is automatically generated so you'll need to look at
how it is generated. The program is in utils/deriveConstants.
Cheers,
Simon
On 10/12/2013 21:43, Alexander Pakhomov 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" <[email protected]>:
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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