#2794: Bootstrapping ghc-6.4.3 hangs in call to "ghc-pkg-inplace"
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Reporter: cspiel | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Build System | Version: 6.4.3
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86
Os: Linux |
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Comment (by cspiel):
Replying to [comment:4 simonmar]:
> Try compiling ghc-pkg or Distribution.Compat.ReadP with -fasm
> and see if that helps.
Compiling just ''ghc-pkg'' or just ''readp.hs'', or both with
option {{{-fasm}}} does not remove the problem. '''ghc-pkg'''
still hangs.
Then I pulled out the big mallet and said
{{{
make clean
make EXTRA_HC_OPTS=-fasm
}}}
in the root directory. This makes the problem go away and
the bootstraping run grinds on for a long long time (as it
should be). However, after a while I run into
{{{
../compiler/ghc-inplace -H16m -O -optc-O2 -static -I/site/include -I.
-#include HCIncludes.h -fvia-C -dcmm-lint -#include posix/Itimer.h -fasm
-c PrimOps.cmm -o PrimOps.o
ghc-6.6.1: panic! (the 'impossible' happened)
(GHC version 6.6.1 for i386-unknown-linux):
iselExpr64(i386) -_c23::I64
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
Following meader's advice I used ghc-6.6.1 for this run.
ghc-6.4.3 faults at a different file:
{{{
../../ghc/compiler/ghc-inplace -H16m -O -O2 -static -I. -#include
Prelude.h -#include Rts.h -#include RtsFlags.h -#include RtsUtils.h
-#include StgRun.h -#include Schedule.h -#include Printer.h -#include
Sanity.h -#include STM.h -#include Storage.h -#include SchedAPI.h
-#include Timer.h -#include Itimer.h -#include ProfHeap.h -#include
LdvProfile.h -#include Profiling.h -#include Apply.h -fvia-C -dcmm-lint
-fasm -c Apply.cmm -o Apply.o
ghc-6.4.3: panic! (the `impossible' happened, GHC version 6.4.3):
nativeGen/RegisterAlloc.hs:286: Non-exhaustive patterns in
function livenessSCCs
Please report this as a compiler bug. See:
http://www.haskell.org/ghc/reportabug
}}}
So, it looks like a clever use of "{{{-fasm}}}" could do the job:
Get '''ghc-phk''' built with "{{{-fasm}}}" then interrupt and
continue without the option. It won't be pretty, but I
want a working Haskell compiler and not a beauty prize.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2794#comment:5>
GHC <http://www.haskell.org/ghc/>
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