| # CMake build for CompilerRT. |
| # |
| # This build assumes that CompilerRT is checked out into the |
| # 'projects/compiler-rt' inside of an LLVM tree. |
| # Standalone build system for CompilerRT is not yet ready. |
| # |
| # An important constraint of the build is that it only produces libraries |
| # based on the ability of the host toolchain to target various platforms. |
| |
| # Check if compiler-rt is built as a standalone project. |
| if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) |
| project(CompilerRT C CXX) |
| set(COMPILER_RT_STANDALONE_BUILD TRUE) |
| else() |
| set(COMPILER_RT_STANDALONE_BUILD FALSE) |
| endif() |
| |
| # The CompilerRT build system requires CMake version 2.8.8 or higher in order |
| # to use its support for building convenience "libraries" as a collection of |
| # .o files. This is particularly useful in producing larger, more complex |
| # runtime libraries. |
| if (NOT MSVC) |
| cmake_minimum_required(VERSION 2.8.8) |
| else() |
| # Version 2.8.12.1 is required to build with Visual Studion 2013. |
| cmake_minimum_required(VERSION 2.8.12.1) |
| endif() |
| |
| # FIXME: It may be removed when we use 2.8.12. |
| if(CMAKE_VERSION VERSION_LESS 2.8.12) |
| # Invalidate a couple of keywords. |
| set(cmake_2_8_12_INTERFACE) |
| set(cmake_2_8_12_PRIVATE) |
| else() |
| # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries(). |
| set(cmake_2_8_12_INTERFACE INTERFACE) |
| set(cmake_2_8_12_PRIVATE PRIVATE) |
| if(POLICY CMP0022) |
| cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required |
| endif() |
| endif() |
| |
| # Top level target used to build all compiler-rt libraries. |
| add_custom_target(compiler-rt ALL) |
| |
| if (NOT COMPILER_RT_STANDALONE_BUILD) |
| # Compute the Clang version from the LLVM version. |
| # FIXME: We should be able to reuse CLANG_VERSION variable calculated |
| # in Clang cmake files, instead of copying the rules here. |
| string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION |
| ${PACKAGE_VERSION}) |
| # Setup the paths where compiler-rt runtimes and headers should be stored. |
| set(COMPILER_RT_OUTPUT_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/clang/${CLANG_VERSION}) |
| set(COMPILER_RT_EXEC_OUTPUT_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR}) |
| set(COMPILER_RT_INSTALL_PATH lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}) |
| option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests." |
| ${LLVM_INCLUDE_TESTS}) |
| option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered" |
| ${LLVM_ENABLE_WERROR}) |
| # Use just-built Clang to compile/link tests on all platforms, except for |
| # Windows where we need to use clang-cl instead. |
| if(NOT MSVC) |
| set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang) |
| else() |
| set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang.exe) |
| endif() |
| else() |
| # Take output dir and install path from the user. |
| set(COMPILER_RT_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR} CACHE PATH |
| "Path where built compiler-rt libraries should be stored.") |
| set(COMPILER_RT_EXEC_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/bin CACHE PATH |
| "Path where built compiler-rt executables should be stored.") |
| set(COMPILER_RT_INSTALL_PATH ${CMAKE_INSTALL_PREFIX} CACHE PATH |
| "Path where built compiler-rt libraries should be installed.") |
| option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests." OFF) |
| option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered" OFF) |
| # Use a host compiler to compile/link tests. |
| set(COMPILER_RT_TEST_COMPILER ${CMAKE_C_COMPILER} CACHE PATH "Compiler to use for testing") |
| |
| if (NOT LLVM_CONFIG_PATH) |
| find_program(LLVM_CONFIG_PATH "llvm-config" |
| DOC "Path to llvm-config binary") |
| if (NOT LLVM_CONFIG_PATH) |
| message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH") |
| endif() |
| endif() |
| execute_process( |
| COMMAND ${LLVM_CONFIG_PATH} "--obj-root" "--bindir" "--libdir" "--src-root" |
| RESULT_VARIABLE HAD_ERROR |
| OUTPUT_VARIABLE CONFIG_OUTPUT) |
| if (HAD_ERROR) |
| message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}") |
| endif() |
| string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT}) |
| list(GET CONFIG_OUTPUT 0 LLVM_BINARY_DIR) |
| list(GET CONFIG_OUTPUT 1 LLVM_TOOLS_BINARY_DIR) |
| list(GET CONFIG_OUTPUT 2 LLVM_LIBRARY_DIR) |
| list(GET CONFIG_OUTPUT 3 LLVM_MAIN_SRC_DIR) |
| |
| # Make use of LLVM CMake modules. |
| file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE) |
| set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/share/llvm/cmake") |
| list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") |
| # Get some LLVM variables from LLVMConfig. |
| include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake") |
| |
| set(LLVM_LIBRARY_OUTPUT_INTDIR |
| ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}) |
| |
| # Find Python interpreter. |
| set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5) |
| include(FindPythonInterp) |
| if(NOT PYTHONINTERP_FOUND) |
| message(FATAL_ERROR " |
| Unable to find Python interpreter required testing. Please install Python |
| or specify the PYTHON_EXECUTABLE CMake variable.") |
| endif() |
| |
| # Define default arguments to lit. |
| set(LIT_ARGS_DEFAULT "-sv") |
| if (MSVC OR XCODE) |
| set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar") |
| endif() |
| set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit") |
| endif() |
| |
| if("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang[+]*$") |
| set(COMPILER_RT_TEST_COMPILER_ID Clang) |
| elseif("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang.*.exe$") |
| set(COMPILER_RT_TEST_COMPILER_ID Clang) |
| else() |
| set(COMPILER_RT_TEST_COMPILER_ID GNU) |
| endif() |
| |
| # Tests using XFAIL use the first value in COMPILER_RT_TEST_TARGET_TRIPLE |
| set(COMPILER_RT_TEST_TARGET_TRIPLE ${TARGET_TRIPLE} CACHE STRING |
| "Default triple for cross-compiled executables") |
| string(REPLACE "-" ";" TARGET_TRIPLE_LIST ${COMPILER_RT_TEST_TARGET_TRIPLE}) |
| list(GET TARGET_TRIPLE_LIST 0 COMPILER_RT_TEST_TARGET_ARCH) |
| list(GET TARGET_TRIPLE_LIST 1 COMPILER_RT_TEST_TARGET_OS) |
| list(GET TARGET_TRIPLE_LIST 2 COMPILER_RT_TEST_TARGET_ABI) |
| |
| if ("${COMPILER_RT_TEST_TARGET_ABI}" STREQUAL "androideabi") |
| set(ANDROID 1) |
| endif() |
| |
| string(TOLOWER ${CMAKE_SYSTEM_NAME} COMPILER_RT_OS_DIR) |
| set(COMPILER_RT_LIBRARY_OUTPUT_DIR |
| ${COMPILER_RT_OUTPUT_DIR}/lib/${COMPILER_RT_OS_DIR}) |
| set(COMPILER_RT_LIBRARY_INSTALL_DIR |
| ${COMPILER_RT_INSTALL_PATH}/lib/${COMPILER_RT_OS_DIR}) |
| |
| # Add path for custom compiler-rt modules. |
| set(CMAKE_MODULE_PATH |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" |
| ${CMAKE_MODULE_PATH} |
| ) |
| include(CompilerRTUtils) |
| |
| set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) |
| set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) |
| |
| # We support running instrumented tests when we're not cross compiling |
| # and target a UNIX-like system or Windows. |
| # We can run tests on Android even when we are cross-compiling. |
| if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR MSVC)) OR ANDROID |
| OR COMPILER_RT_EMULATOR) |
| option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON) |
| else() |
| option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF) |
| endif() |
| |
| option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF) |
| # COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in. |
| pythonize_bool(COMPILER_RT_DEBUG) |
| |
| #================================ |
| # Setup Compiler Flags |
| #================================ |
| include(CheckIncludeFile) |
| check_include_file(unwind.h HAVE_UNWIND_H) |
| |
| include(config-ix) |
| |
| if(MSVC) |
| append_string_if(COMPILER_RT_HAS_W3_FLAG /W3 CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| else() |
| append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| endif() |
| if(COMPILER_RT_ENABLE_WERROR) |
| append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| endif() |
| |
| append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS) |
| |
| # Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP. |
| if(NOT COMPILER_RT_HAS_FUNC_SYMBOL) |
| add_definitions(-D__func__=__FUNCTION__) |
| endif() |
| |
| # Provide some common commmandline flags for Sanitizer runtimes. |
| append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FNO_BUILTIN_FLAG -fno-builtin SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FUNWIND_TABLES_FLAG -funwind-tables SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FNO_STACK_PROTECTOR_FLAG -fno-stack-protector SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SANITIZER_COMMON_CFLAGS) |
| |
| if(MSVC) |
| # Replace the /MD[d] flags with /MT. |
| # FIXME: In fact, sanitizers should support both /MT and /MD, see PR20214. |
| if(COMPILER_RT_HAS_MT_FLAG) |
| foreach(flag_var |
| CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE |
| CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO) |
| if(${flag_var} MATCHES "/MD") |
| string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}") |
| elseif(${flag_var} MATCHES "/MDd") |
| string(REGEX REPLACE "/MDd" "/MT" ${flag_var} "${${flag_var}}") |
| endif() |
| endforeach() |
| endif() |
| append_list_if(COMPILER_RT_HAS_Oy_FLAG /Oy- SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_GS_FLAG /GS- SANITIZER_COMMON_CFLAGS) |
| endif() |
| |
| append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 SANITIZER_COMMON_CFLAGS) |
| |
| # Build with optimization, unless we're in debug mode. If we're using MSVC, |
| # always respect the optimization flags set by CMAKE_BUILD_TYPE instead. |
| if(NOT COMPILER_RT_DEBUG AND NOT MSVC) |
| list(APPEND SANITIZER_COMMON_CFLAGS -O3) |
| endif() |
| |
| # Determine if we should restrict stack frame sizes. |
| # Stack frames on PowerPC and Mips and in debug biuld can be much larger than |
| # anticipated. |
| # FIXME: Fix all sanitizers and add -Wframe-larger-than to |
| # SANITIZER_COMMON_FLAGS |
| if(COMPILER_RT_HAS_WFRAME_LARGER_THAN_FLAG AND NOT COMPILER_RT_DEBUG |
| AND NOT ${LLVM_NATIVE_ARCH} STREQUAL "PowerPC" |
| AND NOT ${LLVM_NATIVE_ARCH} STREQUAL "Mips") |
| set(SANITIZER_LIMIT_FRAME_SIZE TRUE) |
| else() |
| set(SANITIZER_LIMIT_FRAME_SIZE FALSE) |
| endif() |
| |
| # Build sanitizer runtimes with debug info. |
| if(COMPILER_RT_HAS_GLINE_TABLES_ONLY_FLAG AND NOT COMPILER_RT_DEBUG) |
| list(APPEND SANITIZER_COMMON_CFLAGS -gline-tables-only) |
| elseif(COMPILER_RT_HAS_G_FLAG) |
| list(APPEND SANITIZER_COMMON_CFLAGS -g) |
| elseif(COMPILER_RT_HAS_Zi_FLAG) |
| list(APPEND SANITIZER_COMMON_CFLAGS /Zi) |
| endif() |
| |
| # Turn off several warnings. |
| append_list_if(COMPILER_RT_HAS_WGNU_FLAG -Wno-gnu SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WVARIADIC_MACROS_FLAG -Wno-variadic-macros SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WC99_EXTENSIONS_FLAG -Wno-c99-extensions SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WNON_VIRTUAL_DTOR_FLAG -Wno-non-virtual-dtor SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WD4146_FLAG /wd4146 SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WD4291_FLAG /wd4291 SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WD4391_FLAG /wd4391 SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WD4722_FLAG /wd4722 SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WD4800_FLAG /wd4800 SANITIZER_COMMON_CFLAGS) |
| if(APPLE) |
| macro(find_darwin_sdk_dir var sdk_name) |
| # Let's first try the internal SDK, otherwise use the public SDK. |
| execute_process( |
| COMMAND xcodebuild -version -sdk ${sdk_name}.internal Path |
| OUTPUT_VARIABLE ${var} |
| OUTPUT_STRIP_TRAILING_WHITESPACE |
| ERROR_FILE /dev/null |
| ) |
| if(${var} STREQUAL "") |
| execute_process( |
| COMMAND xcodebuild -version -sdk ${sdk_name} Path |
| OUTPUT_VARIABLE ${var} |
| OUTPUT_STRIP_TRAILING_WHITESPACE |
| ERROR_FILE /dev/null |
| ) |
| endif() |
| endmacro() |
| |
| find_darwin_sdk_dir(OSX_SDK_DIR macosx) |
| find_darwin_sdk_dir(IOSSIM_SDK_DIR iphonesimulator) |
| |
| string(REGEX MATCH "-mmacosx-version-min=" |
| MACOSX_VERSION_MIN_FLAG "${CMAKE_CXX_FLAGS}") |
| set(SANITIZER_COMMON_SUPPORTED_DARWIN_OS osx) |
| if (IOSSIM_SDK_DIR AND NOT MACOSX_VERSION_MIN_FLAG) |
| list(APPEND SANITIZER_COMMON_SUPPORTED_DARWIN_OS iossim) |
| endif() |
| |
| set(SANITIZER_MIN_OSX_VERSION 10.7) |
| set(CMAKE_OSX_DEPLOYMENT_TARGET "") # We're setting the flag manually below. |
| set(DARWIN_osx_CFLAGS -mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION} |
| -stdlib=libc++) |
| set(DARWIN_iossim_CFLAGS |
| -stdlib=libc++ |
| -mios-simulator-version-min=7.0 -isysroot ${IOSSIM_SDK_DIR}) |
| set(DARWIN_osx_LINKFLAGS -mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION} |
| -stdlib=libc++ -lc++ -lc++abi) |
| set(DARWIN_iossim_LINKFLAGS |
| -stdlib=libc++ -lc++ -lc++abi |
| -Wl,-ios_simulator_version_min,7.0.0 |
| -mios-simulator-version-min=7.0 |
| -isysroot ${IOSSIM_SDK_DIR}) |
| |
| if(OSX_SDK_DIR) |
| list(APPEND DARWIN_osx_CFLAGS -isysroot ${OSX_SDK_DIR}) |
| list(APPEND DARWIN_osx_LINKFLAGS -isysroot ${OSX_SDK_DIR}) |
| endif() |
| endif() |
| |
| add_subdirectory(include) |
| |
| set(COMPILER_RT_LIBCXX_PATH ${LLVM_MAIN_SRC_DIR}/projects/libcxx) |
| if(EXISTS ${COMPILER_RT_LIBCXX_PATH}/) |
| set(COMPILER_RT_HAS_LIBCXX_SOURCES TRUE) |
| else() |
| set(COMPILER_RT_HAS_LIBCXX_SOURCES FALSE) |
| endif() |
| |
| add_subdirectory(lib) |
| |
| if(COMPILER_RT_INCLUDE_TESTS) |
| add_subdirectory(unittests) |
| endif() |
| add_subdirectory(test) |