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

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

Ok. What cabal package?  Have you filed a bug report on ghc trac?

On Sunday, March 9, 2014, Federico Mastellone <fmaste@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@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@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@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@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