Unable to build a profiled version of GHC Head

[Matthew Pickering]

Hi Roland,

I can reproduce this. No idea about how to fix it at the moment but
looks like a bug in hadrian.

Matt

On Tue, Apr 9, 2019 at 11:20 AM Roland Senn <rsx at bluewin.ch> wrote:
>
> Hi,
>
>
> I'm unable to build a profiled version of GHC Head. I did:
>
>
>   git clone --recursive https://gitlab.haskell.org/ghc/ghc ghcprof
>
>   cd ghcprof
>
>   git remote set-url --add origin https://gitlab.haskell.org/RolandSenn/ghc
>
>   git remote set-url --delete origin https://gitlab.haskell.org/ghc/ghc
>
>   git remote add upstream https://gitlab.haskell.org/ghc/ghc
>
>   git fetch upstream
>
>   git push origin master
>
>   hadrian/build.sh -c --flavour=prof -j2
>
>
> I get the follwoing failure:
>
>
>   ...
>
>   | Run Ghc CompileCWithGhc Stage1: utils/hp2ps/Utilities.c => _build/stage1/utils/hp2ps/build/c/Utilities.dyn_o
>
>   | Run Cc FindCDependencies Stage1: libraries/ghc-prim/cbits/atomic.c => _build/stage1/libraries/ghc-prim/build/c/cbits/atomic.p_o.d
>
>   | Run Ghc CompileCWithGhc Stage1: libraries/ghc-prim/cbits/atomic.c => _build/stage1/libraries/ghc-prim/build/c/cbits/atomic.p_o
>
>   | Run HsCpp: compiler/prelude/primops.txt.pp => _build/stage1/compiler/build/primops.txt
>
>   | Run GenPrimopCode: _build/stage1/compiler/build/primops.txt => _build/stage1/libraries/ghc-prim/build/GHC/Prim.hs
>
>   libraries/ghc-prim/cbits/atomic.c: In function ‘hs_atomic_nand8’:
>
>
>   libraries/ghc-prim/cbits/atomic.c:181:10: error:
>
>        note: ‘__sync_fetch_and_nand’ changed semantics in GCC 4.4
>
>          return __sync_fetch_and_nand((volatile StgWord8 *) x, (StgWord8) val);
>
>                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>       |
>
>   181 |   return __sync_fetch_and_nand((volatile StgWord8 *) x, (StgWord8) val);
>
>       |          ^
>
>   | Run Cc FindCDependencies Stage1: libraries/ghc-prim/cbits/pext.c => _build/stage1/libraries/ghc-prim/build/c/cbits/pext.dyn_o.d
>
>   | Run Cc FindCDependencies Stage1: utils/hp2ps/Main.c => _build/stage1/utils/hp2ps/build/c/Main.dyn_o.d
>
>   | Run Ghc CompileCWithGhc Stage1: libraries/ghc-prim/cbits/pext.c => _build/stage1/libraries/ghc-prim/build/c/cbits/pext.dyn_o
>
>   | Run GenPrimopCode: _build/stage1/compiler/build/primops.txt => _build/stage1/libraries/ghc-prim/build/GHC/PrimopWrappers.hs
>
>   | Run Ghc FindHsDependencies Stage1: libraries/ghc-prim/GHC/CString.hs (and 7 more) => _build/stage1/libraries/ghc-prim/.dependencies.mk
>
>   | Run Ghc CompileCWithGhc Stage1: libraries/ghc-prim/cbits/pext.c => _build/stage1/libraries/ghc-prim/build/c/cbits/pext.p_o
>
>   | Remove file _build/stage1/libraries/ghc-prim/.dependencies.mk.bak
>
>   Error when running Shake build system:
>
>     at action, called at src/Rules.hs:68:19 in main:Rules
>
>     at need, called at src/Rules.hs:85:5 in main:Rules
>
>   * Depends on: _build/stage1/bin/ghc
>
>     at need, called at src/Utilities.hs:71:18 in main:Utilities
>
>   * Depends on: _build/stage1/libraries/ghc-prim/build/libHSghc-prim-0.6.1_p-ghc8.9.20190408.so
>
>     at need, called at src/Rules/Library.hs:121:5 in main:Rules.Library
>
>   * Depends on: _build/stage1/libraries/ghc-prim/build/GHC/IntWord64.p_dyn_o
>
>     at error, called at src/Hadrian/Oracles/TextFile.hs:65:20 in main:Hadrian.Oracles.TextFile
>
>   * Raised the exception:
>
>   No dependencies found for file '_build/stage1/libraries/ghc-prim/build/GHC/IntWord64.p_dyn_o'
>
>
> I'm using Debian 9; x64_86;  GHC 8.6.3; gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
>
> Any ideas what's wrong?
>
>
> Many thanks and kind regards
>
>    Roland
>
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