[llvm] r185925 - Document LLVM_USE_SANITIZER CMake option

[Chandler Carruth]

What version of Clang are you using as the host compiler? It needs to be a
reasonably modern one for this option to work.


On Tue, Jul 9, 2013 at 9:45 AM, Nadav Rotem <nrotem at apple.com> wrote:

> Hi Alexey,
>
> I am getting this error when I configure using
> -DLLVM_USE_SANITIZER=Address.  Should I add any other flags ?
>
> *Scanning dependencies of target LLVMSupport*
>
> [  0%] Building CXX object
> lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o
>
> clang: error: '-fsanitize-undefined-trap-on-error' required with
> '-fsanitize=address' option
>
> clang: error: unsupported argument 'address' to option 'fsanitize='
>
> make[2]: *** [lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o] Error 1
>
> make[1]: *** [lib/Support/CMakeFiles/LLVMSupport.dir/all] Error 2
>
> make: *** [all] Error 2
>
>
>
> Thanks,
>
> Nadav
>
>
>
> On 07/09/13, *Alexey Samsonov * <samsonov at google.com> wrote:
>
> Author: samsonov
> Date: Tue Jul  9 05:56:13 2013
> New Revision: 185925
>
> URL: http://llvm.org/viewvc/llvm-project?rev=185925&view=rev
> Log:
> Document LLVM_USE_SANITIZER CMake option
>
> Modified:
>     llvm/trunk/docs/CMake.rst
>
> Modified: llvm/trunk/docs/CMake.rst
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/CMake.rst?rev=185925&r1=185924&r2=185925&view=diff
>
> ==============================================================================
> --- llvm/trunk/docs/CMake.rst (original)
> +++ llvm/trunk/docs/CMake.rst Tue Jul  9 05:56:13 2013
> @@ -275,6 +275,11 @@ LLVM-specific variables
>    Build with zlib to support compression/uncompression in LLVM tools.
>    Defaults to ON.
>
> +**LLVM_USE_SANITIZER**:STRING
> +  Define the sanitizer used to build LLVM binaries and tests. Possible
> values
> +  are ``Address``, ``Memory`` and ``MemoryWithOrigins``. Defaults to empty
> +  string.
> +
>  Executing the test suite
>  ========================
>
>
>
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