[PATCH] D23005: [CMake] Pass -nostdlib if supported
Jonas Hahnfeld via llvm-commits
llvm-commits at lists.llvm.org
Mon Aug 1 22:59:01 PDT 2016
This revision was automatically updated to reflect the committed changes.
Closed by commit rL277419: [CMake] Pass -nostdlib if supported (authored by Hahnfeld).
Changed prior to commit:
https://reviews.llvm.org/D23005?vs=66285&id=66430#toc
Repository:
rL LLVM
https://reviews.llvm.org/D23005
Files:
compiler-rt/trunk/CMakeLists.txt
compiler-rt/trunk/cmake/config-ix.cmake
Index: compiler-rt/trunk/cmake/config-ix.cmake
===================================================================
--- compiler-rt/trunk/cmake/config-ix.cmake
+++ compiler-rt/trunk/cmake/config-ix.cmake
@@ -26,6 +26,7 @@
check_cxx_compiler_flag(-ffreestanding COMPILER_RT_HAS_FFREESTANDING_FLAG)
check_cxx_compiler_flag("-Werror -fno-function-sections" COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG)
check_cxx_compiler_flag(-std=c++11 COMPILER_RT_HAS_STD_CXX11_FLAG)
+check_cxx_compiler_flag(-nostdlib COMPILER_RT_HAS_NOSTDLIB_FLAG)
check_cxx_compiler_flag(-ftls-model=initial-exec COMPILER_RT_HAS_FTLS_MODEL_INITIAL_EXEC)
check_cxx_compiler_flag(-fno-lto COMPILER_RT_HAS_FNO_LTO_FLAG)
check_cxx_compiler_flag("-Werror -msse3" COMPILER_RT_HAS_MSSE3_FLAG)
Index: compiler-rt/trunk/CMakeLists.txt
===================================================================
--- compiler-rt/trunk/CMakeLists.txt
+++ compiler-rt/trunk/CMakeLists.txt
@@ -111,6 +111,8 @@
endif()
append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS)
+# we don't need to link with the C++ library
+append_string_if(COMPILER_RT_HAS_NOSTDLIB_FLAG -nostdlib CMAKE_CXX_FLAGS)
# Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP.
if(NOT COMPILER_RT_HAS_FUNC_SYMBOL)
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