diff options
| author | Petr Hosek <phosek@chromium.org> | 2017-07-28 03:39:38 +0000 |
|---|---|---|
| committer | Petr Hosek <phosek@chromium.org> | 2017-07-28 03:39:38 +0000 |
| commit | d630c5dde1026eee0e5a1fb886791adf21ab95a6 (patch) | |
| tree | d9521f5d3c1d37520280d14da296381d6ae837ec /cmake/Modules | |
| parent | ab3ad40db18c65299f5c4dbcd0cec54a774e50cf (diff) | |
Support compiler-rt builtins
This change adds support for compiler-rt builtins as an alternative
compiler runtime to libgcc.
Differential Revision: https://reviews.llvm.org/D35165
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309361 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake/Modules')
| -rw-r--r-- | cmake/Modules/HandleCompilerRT.cmake | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/cmake/Modules/HandleCompilerRT.cmake b/cmake/Modules/HandleCompilerRT.cmake new file mode 100644 index 000000000..cff5031ec --- /dev/null +++ b/cmake/Modules/HandleCompilerRT.cmake @@ -0,0 +1,21 @@ +function(find_compiler_rt_library name dest) + set(dest "" PARENT_SCOPE) + set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${SANITIZER_COMMON_CFLAGS} + "--rtlib=compiler-rt" "--print-libgcc-file-name") + if (CMAKE_CXX_COMPILER_ID MATCHES Clang AND CMAKE_CXX_COMPILER_TARGET) + list(APPEND CLANG_COMMAND "--target=${CMAKE_CXX_COMPILER_TARGET}") + endif() + execute_process( + COMMAND ${CLANG_COMMAND} + RESULT_VARIABLE HAD_ERROR + OUTPUT_VARIABLE LIBRARY_FILE + ) + string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE) + string(REPLACE "builtins" "${name}" LIBRARY_FILE "${LIBRARY_FILE}") + if (NOT HAD_ERROR AND EXISTS "${LIBRARY_FILE}") + message(STATUS "Found compiler-rt ${name} library: ${LIBRARY_FILE}") + set(${dest} "${LIBRARY_FILE}" PARENT_SCOPE) + else() + message(STATUS "Failed to find compiler-rt ${name} library") + endif() +endfunction() |