On Mon, Mar 17, 2008 at 01:25:07AM -0400, Dustin DeWeese wrote:
> I'm working on a registerised port of GHC 6.8.2 to an ARM CPU.
Great!
> After making the changes needed (listed in the 'Porting GHC' wiki page), I am
> trying to compile GHC.
>
> The build fails while compiling the stage 2 compiler with this error message:
>
> basicTypes/OccName.lhs-boot:1:0:
> Bad interface file:
> /home/dusty/deb-src2/ghc6-6.8.2/libraries/base/dist/build/Prelude.hi
> mismatched interface file ways: expected , found u
>
> I am pretty sure that Prelude is registerised because ghc-asm prints out some
> diagnostics while compiling it.
>
> Does anyone know what's going on or how I can fix it? How can I check a .hi
> file to see if it is unregisterised?
Hmm, ghc --show-iface doesn't seem to tell you.
Here's the start of hexdump -C on an unregisterised Prelude.hi:
00000000 01 fa ce 64 00 00 00 00 00 00 18 7e 04 00 00 00 |...d.......~....|
00000010 36 00 00 00 30 00 00 00 38 00 00 00 32 01 00 00 |6...0...8...2...|
00000020 00 75 00 00 00 00 00 00 18 76 00 00 00 00 00 00 |.u.......v......|
The 01 (byte 30) after the version number is the length of the way
string. the next 4 bytes are treated as a Word32 which is converted into
the Char 'u'.
Here's a registerised Prelude.hi, with no way string (length 0):
00000000 01 fa ce 64 00 00 00 00 00 00 18 7a 04 00 00 00 |...d.......z....|
00000010 36 00 00 00 30 00 00 00 38 00 00 00 32 00 00 00 |6...0...8...2...|
00000020 00 00 00 00 18 72 00 00 00 00 00 00 00 00 00 00 |.....r..........|
Some bits may be smaller if you are 32bit, but the version number should
allow you to orientate yourself.
> Here is my build.mk:
Nothing jumps out as being wrong. To save time, you might want to add
GhcLibWays=
and remove your GhcRTSWays definitions, as there's no point building the
profiling libraries and RTS for now.
Also, what is the output of
compiler/stage1/ghc-inplace --info
?
Thanks
Ian
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