Problem with cabal's --enable-library-coverage on 7.8.1rc2

[Carter Schonwald]

So, was the issue cabal not catching the linker error?


On Mon, Mar 10, 2014 at 12:04 PM, Federico Mastellone <fmaste at gmail.com>wrote:

> Found the problem,
>
> I did not have the modules that were used but not exposed enumerated under
> "other-modules” on cabal's library definition. This builds OK on 7.6.3 even
> with a correct code coverage report, but fails to build with the linking
> error under 7.8-rc2. When I add the “other-modules” it works on both.
>
>
> On Mar 9, 2014, at 17:26, Carter Schonwald <carter.schonwald at gmail.com>
> wrote:
>
> great!
> Thanks for taking the time to shrink the bug, look forward to helping on
> the ticket
>
>
> On Sun, Mar 9, 2014 at 12:32 PM, Federico Mastellone <fmaste at gmail.com>wrote:
>
>> With a package of mine that I reduced it to just two modules, the one on
>> the link below.
>> I did not file a bug, I wanted to ask here first. I'll do it now
>>
>> On 09/03/2014, at 11:41, Carter Schonwald <carter.schonwald at gmail.com>
>> wrote:
>>
>> Ok. What cabal package?  Have you filed a bug report on ghc trac?
>>
>> On Sunday, March 9, 2014, Federico Mastellone <fmaste at gmail.com> wrote:
>>
>>> Downloaded gcc-4.9 binary from http://hpc.sourceforge.net and tested
>>> again with both 7.6.3 and 7.8-rc2
>>>
>>> Fails with the same error with 7.8-rc2 and does not fail with 7.6.3
>>>
>>> ld: illegal text reloc
>>> in '_enablezmlibraryzmcoveragezm0zi0zi1_Library_sendMsg2_info'
>>> to '__hpc_tickboxes_enablezmlibraryzmcoveragezm0zi0zi1_Util_hpc' for
>>> architecture x86_64
>>> collect2: error: ld returned 1 exit status
>>>
>>> On Mar 7, 2014, at 16:58, Carter Schonwald <carter.schonwald at gmail.com>
>>> wrote:
>>>
>>> No.  Try real GCC.  Follow my linked directions.  Xcode GCC is fake.
>>>  It's clang.  Follow my directions please.
>>>
>>> On Friday, March 7, 2014, Federico Mastellone <fmaste at gmail.com> wrote:
>>>
>>> It’s the same error with and without the clang-xcode5-wrapper that is
>>> named as an alternative solution
>>>
>>> On Mar 7, 2014, at 13:10, Carter Schonwald <carter.schonwald at gmail.com>
>>> wrote:
>>>
>>> try using real GCC
>>>
>>> i have these directions https://gist.github.com/cartazio/7131371
>>>
>>>
>>> On Fri, Mar 7, 2014 at 10:47 AM, Federico Mastellone <fmaste at gmail.com>wrote:
>>>
>>> Hi,
>>>
>>> On Mac OS X 10.9.2 with ghc 7.8.0.20140228 and cabal 1.18.0.3
>>>
>>> Doing:
>>> cabal configure --enable-library-coverage
>>> cabal build
>>>
>>> Fails with:
>>>
>>> ld: illegal text reloc in
>>> '_enablezmlibraryzmcoveragezm0zi0zi1_Library_sendMsg2_info' to
>>> '__hpc_tickboxes_enablezmlibraryzmcoveragezm0zi0zi1_Util_hpc' for
>>> architecture x86_64
>>> clang: error: linker command failed with exit code 1 (use -v to see
>>> invocation)
>>>
>>>
>>> But without the coverage flag it’s OK.
>>>
>>> I found it when switching from 7.6.3 to 7.8.1RC2 on a project I have and
>>> was able to strip it to this:
>>> https://github.com/fmaste/ghc-7.8.0.20140228-enable-library-coverage
>>>
>>> Don’t know if this is a cabal or ghc problem and I don’t know how to
>>> continue.
>>>
>>> Thanks!
>>>
>>> My ghc —info:
>>>  [("Project name","The Glorious Glasgow Haskell Compilation System")
>>>  ,("GCC extra via C opts"," -fwrapv")
>>>  ,("C compiler command","/usr/bin/gcc")
>>>  ,("C compiler flags"," -m64 -fno-stack-protector")
>>>  ,("C compiler link flags"," -m64")
>>>  ,("ld command","/usr/bin/ld")
>>>  ,("ld flags"," -arch x86_64")
>>>  ,("ld supports compact unwind","YES")
>>>  ,("ld supports build-id","NO")
>>>  ,("ld supports filelist","YES")
>>>  ,("ld is GNU ld","NO")
>>>  ,("ar command","/usr/bin/ar")
>>>  ,("ar flags","clqs")
>>>  ,("ar supports at file","NO")
>>>  ,("touch command","touch")
>>>  ,("dllwrap command","/bin/false")
>>>  ,("windres command","/bin/false")
>>>  ,("libtool command","libtool")
>>>  ,("perl command","/usr/bin/perl")
>>>  ,("target os","OSDarwin")
>>>  ,("target arch","ArchX86_64")
>>>  ,("target word size","8")
>>>  ,("target has GNU nonexec stack","False")
>>>  ,("target has .ident directive","True")
>>>  ,("target has subsections via symbols","True")
>>>  ,("Unregisterised","NO")
>>>  ,("LLVM llc command","llc")
>>>  ,("LLVM opt command","opt")
>>>  ,("Project version","7.8.0.20140228")
>>>  ,("Booter version","7.6.3")
>>>  ,("Stage","2")
>>>  ,("Build platform","x86_64-apple-darwin")
>>>  ,("Hos
>>>
>>>
>
>
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