I got this too, on windows. On linux I got a similiar issue, but I think the message was different. I ran the ghc stage2 with valgrind and it complained about there being an invalid instruction. I wonder if it is a 64bit thing. Anyone been able to build the LLVM backend with a 64 bit machine? -Jonathan Fischoff

Hokay, so I've installed LLVM 2.7, gotten ghc-HEAD-2009-10-23-ghc- corelibs.tar.bz2, run ./darcs-all pull -a, run ./boot, applied add-new-llvm-code-generator-to-ghc_.dpatch ghc-llvmbackend-20100328.dpatch and written the following in mk/build.mk:

GhcWithLlvmCodeGen = YES GhcEnableTablesNextToCode = NO SRC_HC_OPTS = -H64m -O0 -fasm GhcStage1HcOpts = -O -fasm GhcStage2HcOpts = -O0 -fasm GhcLibHcOpts = -O -fasm SplitObjs = NO HADDOCK_DOCS = NO

And when I run make,

make -r --no-print-directory -f ghc.mk all "inplace/bin/ghc-stage2" -H64m -O0 -fasm -i -iutils/ghctags/. -iutils/ghctags/dist/build -iutils/ghctags/dist/build/autogen -Iutils/ghctags/dist/build -Iutils/ghctags/dist/build/autogen -package ghc -no-user-package-conf -rtsopts -odir utils/ghctags/dist/build -hidir utils/ghctags/dist/build -stubdir utils/ghctags/dist/build -hisuf hi -osuf o -hcsuf hc -c utils/ghctags/./Main.hs -o utils/ghctags/dist/build/Main.o "inplace/bin/ghc-stage2" -H64m -O0 -fasm -package-name dph-base-0.4.0 -hide-all-packages -i -ilibraries/dph/dph-base/. -ilibraries/dph/dph-base/dist-install/build -ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/dist-install/build -Ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/include -optP-include -optPlibraries/dph/dph-base/dist-install/build/autogen/cabal_macros.h -package array-0.3.0.0 -package base-4.2.0.0 -package ghc-prim-0.2.0.0 -package random-1.0.0.2 -Odph -funbox-strict-fields -haddock -fcpr-off -XTypeFamilies -XGADTs -XRankNTypes -XBangPatterns -XMagicHash -XUnboxedTuples -XTypeOperators -O -fasm -fno-warn-deprecated-flags -Wwarn -odir libraries/dph/dph-base/dist-install/build -hidir libraries/dph/dph-base/dist-install/build -stubdir libraries/dph/dph-base/dist-install/build -hisuf hi -osuf o -hcsuf hc -c libraries/dph/dph-base/./Data/Array/Parallel/Base/DTrace.hs -o libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/DTrace.o "inplace/bin/ghc-stage2" -H64m -O0 -fasm -package-name dph-base-0.4.0 -hide-all-packages -i -ilibraries/dph/dph-base/. -ilibraries/dph/dph-base/dist-install/build -ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/dist-install/build -Ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/include -optP-include -optPlibraries/dph/dph-base/dist-install/build/autogen/cabal_macros.h -package array-0.3.0.0 -package base-4.2.0.0 -package ghc-prim-0.2.0.0 -package random-1.0.0.2 -Odph -funbox-strict-fields -haddock -fcpr-off -XTypeFamilies -XGADTs -XRankNTypes -XBangPatterns -XMagicHash -XUnboxedTuples -XTypeOperators -O -fasm -fno-warn-deprecated-flags -Wwarn -odir libraries/dph/dph-base/dist-install/build -hidir libraries/dph/dph-base/dist-install/build -stubdir libraries/dph/dph-base/dist-install/build -hisuf hi -osuf o -hcsuf hc -c libraries/dph/dph-base/./Data/Array/Parallel/Base/Hyperstrict.hs -o

libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/Hyperstrict.o Segmentation fault make[1]: ***

[libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/Hyperstrict.o] Error 139 make[1]: *** Waiting for unfinished jobs.... Segmentation fault make[1]: *** [utils/ghctags/dist/build/Main.o] Error 139 Segmentation fault make[1]: ***

[libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/DTrace.o] Error 139 make: *** [all] Error 2

I get segfaults. Segfaults make me unhappy. Halp plz?

Louis Wasserman wasserman.louis@gmail.com http://profiles.google.com/wasserman.louis