[cfe-dev] Build Clang with CMake and Intel Compiler

[Kostya Serebryany]

On Wed, Mar 19, 2014 at 6:47 PM, Marvin Damschen
<marvin.damschen at gullz.de>wrote:

>
> > This error reports comes from building tsan (ThreadSanitizer) run-time.
> > First: do you need it?
>
> I do not need it, but I am not too familiar with the clang build
> process. How do I disable it? Would commenting out the
> 'add_compiler_rt_static_runtime' and 'add_compiler_rt_static_runtime' in
> the CMakeLists be sufficient?
>

Do you need compiler-rt at all? If no, just don't check it out.


>
> > Second: try to hack compiler-rt/lib/sanitizer_common/sanitizer_asm.h
> > to disable CFI directives.
>
> Apparently, sanitizer_asm.h was added in trunk after 3.4 to solve
> exactly the problem I am having right now. However, I am bound to 3.4
> because I want to use Intel's OpenMP extensions eventually. I think
> disabling the problematic sanitizers is the way to go for me now.
>

Ah, so trunk does not trouble you.
Then just comment out the cfi directives in your variant of 3.4 whenever
you find them (couple of places in compiler-rt/lib/sanitizer_common and
compiler-rt/lib/tsan)


>
> Thank you
> Marvin
>
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