[compiler-rt] Add SANITIZER_CXX_ABI_LIBNAME=libc++ option.

Summary: This is to support Android where libc++abi is part of libc++.

Reviewers: srhines, EricWF

Subscribers: dberris, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D36640

llvm-svn: 310769

compiler-rt/CMakeLists.txt

@@ -132,6 +132,8 @@ if (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libcxxabi")
   else()
     list(APPEND SANITIZER_CXX_ABI_LIBRARY "c++abi")
   endif()
+elseif (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libc++")
+  list(APPEND SANITIZER_CXX_ABI_LIBRARY "c++")
 elseif (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libstdc++")
   append_list_if(COMPILER_RT_HAS_LIBSTDCXX stdc++ SANITIZER_CXX_ABI_LIBRARY)
 endif()