diff options
Diffstat (limited to 'cmake/Modules')
| -rw-r--r-- | cmake/Modules/AddCompilerRT.cmake | 12 | ||||
| -rw-r--r-- | cmake/Modules/CompilerRTDarwinUtils.cmake | 4 | ||||
| -rw-r--r-- | cmake/Modules/CompilerRTUtils.cmake | 10 |
3 files changed, 19 insertions, 7 deletions
diff --git a/cmake/Modules/AddCompilerRT.cmake b/cmake/Modules/AddCompilerRT.cmake index 3c1e1c10d2afe..b64eb42463463 100644 --- a/cmake/Modules/AddCompilerRT.cmake +++ b/cmake/Modules/AddCompilerRT.cmake @@ -110,6 +110,13 @@ function(add_compiler_rt_runtime name type) "OS;ARCHS;SOURCES;CFLAGS;LINK_FLAGS;DEFS;LINK_LIBS;OBJECT_LIBS" ${ARGN}) set(libnames) + # Until we support this some other way, build compiler-rt runtime without LTO + # to allow non-LTO projects to link with it. + if(COMPILER_RT_HAS_FNO_LTO_FLAG) + set(NO_LTO_FLAGS "-fno-lto") + else() + set(NO_LTO_FLAGS "") + endif() if(APPLE) foreach(os ${LIB_OS}) if(type STREQUAL "STATIC") @@ -121,7 +128,7 @@ function(add_compiler_rt_runtime name type) list_intersect(LIB_ARCHS_${libname} DARWIN_${os}_ARCHS LIB_ARCHS) if(LIB_ARCHS_${libname}) list(APPEND libnames ${libname}) - set(extra_cflags_${libname} ${DARWIN_${os}_CFLAGS} ${LIB_CFLAGS}) + set(extra_cflags_${libname} ${DARWIN_${os}_CFLAGS} ${NO_LTO_FLAGS} ${LIB_CFLAGS}) set(output_name_${libname} ${libname}${COMPILER_RT_OS_SUFFIX}) set(sources_${libname} ${LIB_SOURCES}) format_object_libs(sources_${libname} ${os} ${LIB_OBJECT_LIBS}) @@ -149,7 +156,7 @@ function(add_compiler_rt_runtime name type) set(sources_${libname} ${LIB_SOURCES}) format_object_libs(sources_${libname} ${arch} ${LIB_OBJECT_LIBS}) set(libnames ${libnames} ${libname}) - set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS}) + set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${NO_LTO_FLAGS} ${LIB_CFLAGS}) endforeach() endif() @@ -380,6 +387,7 @@ macro(add_custom_libcxx name prefix) -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR> -DLLVM_PATH=${LLVM_MAIN_SRC_DIR} + -DLIBCXX_STANDALONE_BUILD=On LOG_BUILD 1 LOG_CONFIGURE 1 LOG_INSTALL 1 diff --git a/cmake/Modules/CompilerRTDarwinUtils.cmake b/cmake/Modules/CompilerRTDarwinUtils.cmake index 3c89381f92f92..baea4a067fa80 100644 --- a/cmake/Modules/CompilerRTDarwinUtils.cmake +++ b/cmake/Modules/CompilerRTDarwinUtils.cmake @@ -85,10 +85,12 @@ function(darwin_test_archs os valid_archs) if(TEST_COMPILE_ONLY) try_compile_only(CAN_TARGET_${os}_${arch} -v -arch ${arch} ${DARWIN_${os}_CFLAGS}) else() + set(SAVED_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS}) + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${arch_linker_flags}") try_compile(CAN_TARGET_${os}_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_C} COMPILE_DEFINITIONS "-v -arch ${arch}" ${DARWIN_${os}_CFLAGS} - CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS=${arch_linker_flags}" OUTPUT_VARIABLE TEST_OUTPUT) + set(CMAKE_EXE_LINKER_FLAGS ${SAVED_CMAKE_EXE_LINKER_FLAGS}) endif() if(${CAN_TARGET_${os}_${arch}}) list(APPEND working_archs ${arch}) diff --git a/cmake/Modules/CompilerRTUtils.cmake b/cmake/Modules/CompilerRTUtils.cmake index c337523cd944e..3b3a0c1532fc0 100644 --- a/cmake/Modules/CompilerRTUtils.cmake +++ b/cmake/Modules/CompilerRTUtils.cmake @@ -138,15 +138,16 @@ macro(test_target_arch arch def) elseif(TEST_COMPILE_ONLY) try_compile_only(CAN_TARGET_${arch} ${TARGET_${arch}_CFLAGS}) else() - set(argstring "${CMAKE_EXE_LINKER_FLAGS} ${argstring}") set(FLAG_NO_EXCEPTIONS "") if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG) set(FLAG_NO_EXCEPTIONS " -fno-exceptions ") endif() + set(SAVED_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS}) + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${argstring}") try_compile(CAN_TARGET_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_SOURCE} COMPILE_DEFINITIONS "${TARGET_${arch}_CFLAGS} ${FLAG_NO_EXCEPTIONS}" - OUTPUT_VARIABLE TARGET_${arch}_OUTPUT - CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS:STRING=${argstring}") + OUTPUT_VARIABLE TARGET_${arch}_OUTPUT) + set(CMAKE_EXE_LINKER_FLAGS ${SAVED_CMAKE_EXE_LINKER_FLAGS}) endif() endif() if(${CAN_TARGET_${arch}}) @@ -225,7 +226,8 @@ macro(load_llvm_config) RESULT_VARIABLE HAD_ERROR OUTPUT_VARIABLE CONFIG_OUTPUT) if(NOT HAD_ERROR) - string(STRIP "${CONFIG_OUTPUT}" LLVM_CMAKE_PATH) + string(STRIP "${CONFIG_OUTPUT}" LLVM_CMAKE_PATH_FROM_LLVM_CONFIG) + file(TO_CMAKE_PATH ${LLVM_CMAKE_PATH_FROM_LLVM_CONFIG} LLVM_CMAKE_PATH) else() file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE) set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") |