How to build profiled stage1?
Ömer Sinan Ağacan
omeragacan at gmail.com
Tue Jan 19 16:27:54 UTC 2016
An update: If I just clone from scratch, set the flavor "prof" and run
make, it doesn't work. But this is another problem, my original
problem is about building profiling stage1, rather than stage2.
2016-01-18 15:10 GMT-05:00 Ömer Sinan Ağacan <omeragacan at gmail.com>:
> I'm trying to debug my stage1 compiler and as a last resort I'm trying to build
> stage1 compiler using `-prof -fprof-auto` to be able to do `+RTS -xc -RTS`
> during the stage2 build.
>
> I tried couple of things but they all failed in different ways.
>
> As far as I understand, both SRC_HC_OPTS and GhcStage1HcOpts are passed to
> system-wide installed ghc during the stage1 build and libraries. So I do one of
> these changes:
>
> SRC_HC_OPTS = -O -H64m -prof -fprof-auto
> GhcStage1HcOpts = -O0 -DDEBUG -prof -fprof-auto
>
> The second change I want to make is I want to pass `+RTS -xc -RTS` to
> ghc-stage1, for that I'm making this change:
>
> GhcLibHcOpts = -O -dcore-lint -prof -fprof-auto
>
> But, no matter what else I change, I can't get past this stage:
>
> "/usr/local/bin/ghc" -hisuf hi -osuf o -hcsuf hc -static -O
> -H64m -Wall -package-db libraries/bootstrapping.conf
> -this-package-key ghc-8.1 -hide-all-packages -i -icompiler/basicTypes
> -icompiler/cmm -icompiler/codeGen -icompiler/coreSyn
> -icompiler/deSugar -icompiler/ghci -icompiler/hsSyn -icompiler/iface
> -icompiler/llvmGen -icompiler/main -icompiler/nativeGen
> -icompiler/parser -icompiler/prelude -icompiler/profiling
> -icompiler/rename -icompiler/simplCore -icompiler/simplStg
> -icompiler/specialise -icompiler/stgSyn -icompiler/stranal
> -icompiler/typecheck -icompiler/types -icompiler/utils
> -icompiler/vectorise -icompiler/stage1/build
> -icompiler/stage1/build/autogen -Icompiler/stage1/build
> -Icompiler/stage1/build/autogen -Icompiler/. -Icompiler/parser
> -Icompiler/utils -Icompiler/stage1 -optP-include
> -optPcompiler/stage1/build/autogen/cabal_macros.h -package-id
> array-0.5.1.0-960bf9ae8875cc30355e086f8853a049 -package-id
> base-4.8.2.0-0d6d1084fbc041e1cded9228e80e264d -package-id
> binary-0.8.0.0 -package-id
> bytestring-0.10.6.0-9a873bcf33d6ce2fd2698ce69e2c1c66 -package-id
> containers-0.5.6.2-59326c33e30ec8f6afd574cbac625bbb -package-id
> directory-1.2.2.0-660a7a83a753ed85c8a374c15dae2b97 -package-id
> filepath-1.4.0.0-f97d1e4aebfd7a03be6980454fe31d6e -package-id
> ghc-boot-8.1 -package-id hoopl-3.10.2.1 -package-id hpc-0.6.0.3
> -package-id process-1.2.3.0-a22328103774f0499a990653944cbf99
> -package-id template-haskell-2.11.0.0 -package-id
> time-1.5.0.1-1b9a502bb07a3e6f4d6935fbf9db7181 -package-id
> transformers-0.5.0.0 -package-id
> unix-2.7.1.0-bb54ee8f9f6b2600aae7a748eb88a610 -Wall
> -fno-warn-name-shadowing -this-package-key ghc -XHaskell2010 -DSTAGE=1
> -Rghc-timing -O0 -DDEBUG -prof -fprof-auto -no-user-package-db
> -rtsopts -odir compiler/stage1/build -hidir
> compiler/stage1/build -stubdir compiler/stage1/build -c
> compiler/utils/Exception.hs -o compiler/stage1/build/Exception.o
>
> compiler/utils/Exception.hs:10:1:
> Failed to load interface for ‘Control.Monad.IO.Class’
> Perhaps you haven't installed the profiling libraries for
> package ‘transformers-0.5.0.0’?
> Use -v to see a list of the files searched for.
> <<ghc: 24684488 bytes, 15 GCs, 1388900/2559496 avg/max bytes
> residency (2 samples), 46M in use, 0.000 INIT (0.001 elapsed), 0.003
> MUT (0.005 elapsed), 0.015 GC (0.019 elapsed) :ghc>>
>
> I tried enabling library-profiling in my global Cabal config, but that didn't
> help. Any ideas how to do this?
>
> If it matters, I'm on Linux.
>
> NOTE: If I pass -v to GHC, it lists this place in the list of
> locations searched:
>
> /home/omer/haskell/ghc_unboxed_sums/libraries/transformers/dist-boot/build/Control/Monad/IO/Class.p_hi
>
> Indeed, the file is not there. When I look at all the command the build system
> run at this point, I see lines like this:
>
> "/usr/local/bin/ghc-pkg" update --force
> --package-db=libraries/bootstrapping.conf
> libraries/transformers/dist-boot/inplace-pkg-config
> Reading package info from
> "libraries/transformers/dist-boot/inplace-pkg-config" ... done.
> transformers-0.5.0.0: Warning: Unrecognized field abi on line 47
> transformers-0.5.0.0: Warning: haddock-interfaces:
> /home/omer/haskell/ghc_unboxed_sums/libraries/transformers/dist-boot/doc/html/transformers/transformers.haddock
> doesn't exist or isn't a file
> transformers-0.5.0.0: cannot find any of
> ["Control/Applicative/Backwards.hi","Control/Applicative/Backwards.p_hi","Control/Applicative/Backwards.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Applicative/Lift.hi","Control/Applicative/Lift.p_hi","Control/Applicative/Lift.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Monad/Signatures.hi","Control/Monad/Signatures.p_hi","Control/Monad/Signatures.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Monad/Trans/Class.hi","Control/Monad/Trans/Class.p_hi","Control/Monad/Trans/Class.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Monad/Trans/Cont.hi","Control/Monad/Trans/Cont.p_hi","Control/Monad/Trans/Cont.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Monad/Trans/Except.hi","Control/Monad/Trans/Except.p_hi","Control/Monad/Trans/Except.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Monad/Trans/Error.hi","Control/Monad/Trans/Error.p_hi","Control/Monad/Trans/Error.dyn_hi"]
> (ignoring)
> transformers-0.5.0.0: cannot find any of
> ["Control/Monad/Trans/Identity.hi","Control/Monad/Trans/Identity.p_hi","Control/Monad/Trans/Identity.dyn_hi"]
> (ignoring)
>
> Then, after a while it's building transformers in a different way, using
> arguments like `-dep-makefile` etc. which are as far as I can see not
> documented in the GHC man page. When I look libraries/transformers I only see a
> directory named "dist-boot" with some weird files with ".haskell" extensions.
> I'm quite confused about how this is supposed to work. Can any of the build
> system experts help me here?
>
> This wiki page
> https://ghc.haskell.org/trac/ghc/wiki/Debugging/Compiler#Addingdebuggingcodetothecompiler
> says "if you have built a profiling compiler ..." but it doesn't say
> anything about
> how to actually build it.
>
> Thanks.
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