[cfe-dev] linking coverage library

[Nick Lewycky]

Recently I added support for gcov-compatible coverage analysis to
compilation. The remaining missing piece is that we should link against
libprofile_rt.a when we see the relevant flags in the link step.

There's currently code in the Driver which adds "-lgcov" when those flags
are visible in the link step. Will it break anything for anyone if I remove
that? Consider the case where someone uses clang to build fortran by running
gfortran and it emits a calls to libgcov that is then linked by clang?

Then I'd like to add in "-l:libprofile_rt.a". I know how gcc puts libgcov,
but how do we ship libraries alongside clang? Does clang pass library search
path flags to the linker?

If we can't remove -lgcov because of some reason, can we pass both -lgcov
and "-l:profile_rt.a"? What about people without gcc installed?

Nick
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20110509/595bc14d/attachment.html>