forked from OSchip/llvm-project
556 lines
21 KiB
CMake
556 lines
21 KiB
CMake
# CMake build for CompilerRT.
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#
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# An important constraint of the build is that it only produces libraries
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# based on the ability of the host toolchain to target various platforms.
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cmake_minimum_required(VERSION 3.4.3)
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# Check if compiler-rt is built as a standalone project.
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR COMPILER_RT_STANDALONE_BUILD)
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project(CompilerRT C CXX ASM)
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set(COMPILER_RT_STANDALONE_BUILD TRUE)
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set_property(GLOBAL PROPERTY USE_FOLDERS ON)
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endif()
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# Add path for custom compiler-rt modules.
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list(INSERT CMAKE_MODULE_PATH 0
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
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)
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if(CMAKE_CONFIGURATION_TYPES)
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set(CMAKE_CFG_RESOLVED_INTDIR "${CMAKE_CFG_INTDIR}/")
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else()
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set(CMAKE_CFG_RESOLVED_INTDIR "")
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endif()
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include(base-config-ix)
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include(CompilerRTUtils)
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option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON)
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mark_as_advanced(COMPILER_RT_BUILD_BUILTINS)
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option(COMPILER_RT_BUILD_CRT "Build crtbegin.o/crtend.o" ON)
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mark_as_advanced(COMPILER_RT_BUILD_CRT)
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option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
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mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
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option(COMPILER_RT_BUILD_XRAY "Build xray" ON)
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mark_as_advanced(COMPILER_RT_BUILD_XRAY)
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option(COMPILER_RT_BUILD_LIBFUZZER "Build libFuzzer" ON)
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mark_as_advanced(COMPILER_RT_BUILD_LIBFUZZER)
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option(COMPILER_RT_BUILD_PROFILE "Build profile runtime" ON)
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mark_as_advanced(COMPILER_RT_BUILD_PROFILE)
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option(COMPILER_RT_BUILD_XRAY_NO_PREINIT "Build xray with no preinit patching" OFF)
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mark_as_advanced(COMPILER_RT_BUILD_XRAY_NO_PREINIT)
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set(COMPILER_RT_ASAN_SHADOW_SCALE ""
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CACHE STRING "Override the shadow scale to be used in ASan runtime")
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if (NOT COMPILER_RT_ASAN_SHADOW_SCALE STREQUAL "")
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# Check that the shadow scale value is valid.
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if (NOT (COMPILER_RT_ASAN_SHADOW_SCALE GREATER -1 AND
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COMPILER_RT_ASAN_SHADOW_SCALE LESS 8))
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message(FATAL_ERROR "
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Invalid ASan Shadow Scale '${COMPILER_RT_ASAN_SHADOW_SCALE}'.")
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endif()
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set(COMPILER_RT_ASAN_SHADOW_SCALE_LLVM_FLAG
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-mllvm -asan-mapping-scale=${COMPILER_RT_ASAN_SHADOW_SCALE})
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set(COMPILER_RT_ASAN_SHADOW_SCALE_DEFINITION
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ASAN_SHADOW_SCALE=${COMPILER_RT_ASAN_SHADOW_SCALE})
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set(COMPILER_RT_ASAN_SHADOW_SCALE_FLAG
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-D${COMPILER_RT_ASAN_SHADOW_SCALE_DEFINITION})
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endif()
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set(COMPILER_RT_HWASAN_WITH_INTERCEPTORS ON CACHE BOOLEAN
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"Enable libc interceptors in HWASan (testing mode)")
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set(COMPILER_RT_BAREMETAL_BUILD OFF CACHE BOOLEAN
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"Build for a bare-metal target.")
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if (COMPILER_RT_STANDALONE_BUILD)
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load_llvm_config()
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if (TARGET intrinsics_gen)
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# Loading the llvm config causes this target to be imported so place it
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# under the appropriate folder in an IDE.
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set_target_properties(intrinsics_gen PROPERTIES FOLDER "Compiler-RT Misc")
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endif()
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# Find Python interpreter.
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set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5)
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include(FindPythonInterp)
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if(NOT PYTHONINTERP_FOUND)
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message(FATAL_ERROR "
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Unable to find Python interpreter required testing. Please install Python
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or specify the PYTHON_EXECUTABLE CMake variable.")
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endif()
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# Ensure that fat libraries are built correctly on Darwin
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if(CMAKE_SYSTEM_NAME STREQUAL Darwin)
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if(NOT CMAKE_LIBTOOL)
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find_program(CMAKE_XCRUN
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NAMES
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xcrun)
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if(CMAKE_XCRUN)
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execute_process(COMMAND
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${CMAKE_XCRUN} -find libtool
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OUTPUT_VARIABLE
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CMAKE_LIBTOOL
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif()
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if(NOT CMAKE_LIBTOOL OR NOT EXISTS CMAKE_LIBTOOL)
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find_program(CMAKE_LIBTOOL
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NAMES
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libtool)
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endif()
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endif()
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get_property(languages GLOBAL PROPERTY ENABLED_LANGUAGES)
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if(CMAKE_LIBTOOL)
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set(CMAKE_LIBTOOL ${CMAKE_LIBTOOL} CACHE PATH "libtool executable")
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message(STATUS "Found libtool - ${CMAKE_LIBTOOL}")
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execute_process(COMMAND
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${CMAKE_LIBTOOL} -V
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OUTPUT_VARIABLE
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LIBTOOL_V_OUTPUT
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if("${LIBTOOL_V_OUTPUT}" MATCHES ".*cctools-([0-9]+).*")
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string(REGEX REPLACE ".*cctools-([0-9]+).*" "\\1" LIBTOOL_VERSION ${LIBTOOL_V_OUTPUT})
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if(NOT LIBTOOL_VERSION VERSION_LESS "862")
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set(LIBTOOL_NO_WARNING_FLAG "-no_warning_for_no_symbols")
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endif()
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endif()
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foreach(lang ${languages})
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set(CMAKE_${lang}_CREATE_STATIC_LIBRARY "\"${CMAKE_LIBTOOL}\" -static ${LIBTOOL_NO_WARNING_FLAG} -o <TARGET> <LINK_FLAGS> <OBJECTS>")
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endforeach()
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endif()
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# Workaround SIP :-(
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if(DYLD_LIBRARY_PATH)
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set(dyld_envar "DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}")
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foreach(lang ${languages})
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foreach(cmd ${CMAKE_${lang}_CREATE_STATIC_LIBRARY})
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list(APPEND CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW "${dyld_envar} ${cmd}")
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endforeach()
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endforeach()
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endif()
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endif()
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# Define default arguments to lit.
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set(LIT_ARGS_DEFAULT "-sv")
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if (MSVC OR XCODE)
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set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
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endif()
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set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
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set(LLVM_LIT_OUTPUT_DIR "${COMPILER_RT_EXEC_OUTPUT_DIR}")
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endif()
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construct_compiler_rt_default_triple()
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if ("${COMPILER_RT_DEFAULT_TARGET_TRIPLE}" MATCHES ".*hf$")
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if (${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "^arm")
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set(COMPILER_RT_DEFAULT_TARGET_ARCH "armhf")
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endif()
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endif()
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if ("${COMPILER_RT_DEFAULT_TARGET_TRIPLE}" MATCHES ".*android.*")
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set(ANDROID 1)
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endif()
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pythonize_bool(ANDROID)
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set(ANDROID_NDK_VERSION 18
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CACHE STRING "Set this to the Android NDK version that you are using")
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set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
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set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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pythonize_bool(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR)
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# We support running instrumented tests when we're not cross compiling
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# and target a UNIX-like system or Windows.
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# We can run tests on Android even when we are cross-compiling.
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if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR WIN32)) OR ANDROID
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OR COMPILER_RT_EMULATOR)
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option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON)
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else()
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option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF)
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endif()
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option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF)
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option(COMPILER_RT_EXTERNALIZE_DEBUGINFO
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"Generate dSYM files and strip executables and libraries (Darwin Only)" OFF)
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# COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in.
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pythonize_bool(COMPILER_RT_DEBUG)
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option(COMPILER_RT_INTERCEPT_LIBDISPATCH
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"Support interception of libdispatch (GCD). Requires '-fblocks'" OFF)
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option(COMPILER_RT_LIBDISPATCH_INSTALL_PATH
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"Specify if libdispatch is installed in a custom location" "")
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if (COMPILER_RT_INTERCEPT_LIBDISPATCH AND NOT APPLE)
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set(COMPILER_RT_LIBDISPATCH_CFLAGS -fblocks)
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set(COMPILER_RT_TEST_LIBDISPATCH_CFLAGS)
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if (COMPILER_RT_LIBDISPATCH_INSTALL_PATH)
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list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS
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-I${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/include)
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list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS
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-L${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/lib
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-Wl,-rpath=${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/lib)
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endif()
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list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS -lBlocksRuntime -ldispatch)
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endif()
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if (APPLE) # Always enable on Apple platforms.
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set(COMPILER_RT_INTERCEPT_LIBDISPATCH ON)
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endif()
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pythonize_bool(COMPILER_RT_INTERCEPT_LIBDISPATCH)
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if(APPLE AND SANITIZER_MIN_OSX_VERSION AND SANITIZER_MIN_OSX_VERSION VERSION_LESS "10.9")
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# Mac OS X prior to 10.9 had problems with exporting symbols from
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# libc++/libc++abi.
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set(cxxabi_supported OFF)
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else()
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set(cxxabi_supported ON)
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endif()
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option(SANITIZER_ALLOW_CXXABI "Allow use of C++ ABI details in ubsan" ON)
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set(SANITIZE_CAN_USE_CXXABI OFF)
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if (cxxabi_supported AND SANITIZER_ALLOW_CXXABI)
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set(SANITIZER_CAN_USE_CXXABI ON)
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endif()
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pythonize_bool(SANITIZER_CAN_USE_CXXABI)
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macro(handle_default_cxx_lib var)
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if (${var} STREQUAL "default")
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if (APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
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set(${var}_LIBNAME "libc++")
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set(${var}_SYSTEM 1)
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elseif (FUCHSIA)
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set(${var}_LIBNAME "libc++")
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set(${var}_INTREE 1)
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else()
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set(${var}_LIBNAME "libstdc++")
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set(${var}_SYSTEM 1)
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endif()
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else()
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set(${var}_LIBNAME "${${var}}")
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set(${var}_SYSTEM 1)
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endif()
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endmacro()
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# This is either directly the C++ ABI library or the full C++ library
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# which pulls in the ABI transitively.
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set(SANITIZER_CXX_ABI "default" CACHE STRING
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"Specify C++ ABI library to use.")
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set(CXXABIS none default libstdc++ libc++ libcxxabi)
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set_property(CACHE SANITIZER_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
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handle_default_cxx_lib(SANITIZER_CXX_ABI)
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# This needs to be a full C++ library for linking gtest and unit tests.
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set(SANITIZER_TEST_CXX "default" CACHE STRING
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"Specify C++ library to use for tests.")
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set(CXXLIBS none default libstdc++ libc++)
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set_property(CACHE SANITIZER_TEST_CXX PROPERTY STRINGS ;${CXXLIBS})
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handle_default_cxx_lib(SANITIZER_TEST_CXX)
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set(DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER OFF)
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if (FUCHSIA)
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set(DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER ON)
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elseif (DEFINED LIBUNWIND_ENABLE_SHARED AND NOT LIBUNWIND_ENABLE_SHARED)
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set(DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER ON)
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endif()
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option(SANITIZER_USE_STATIC_LLVM_UNWINDER
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"Use static LLVM unwinder." ${DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER})
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set(DEFAULT_SANITIZER_USE_STATIC_CXX_ABI OFF)
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if (DEFINED LIBCXXABI_ENABLE_SHARED AND NOT LIBCXXABI_ENABLE_SHARED)
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set(DEFAULT_SANITIZER_USE_STATIC_CXX_ABI ON)
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endif()
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option(SANITIZER_USE_STATIC_CXX_ABI
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"Use static libc++abi." ${DEFAULT_SANITIZER_USE_STATIC_CXX_ABI})
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set(DEFAULT_COMPILER_RT_USE_BUILTINS_LIBRARY OFF)
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if (FUCHSIA)
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set(DEFAULT_COMPILER_RT_USE_BUILTINS_LIBRARY ON)
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endif()
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option(COMPILER_RT_USE_BUILTINS_LIBRARY
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"Use compiler-rt builtins instead of libgcc" ${DEFAULT_COMPILER_RT_USE_BUILTINS_LIBRARY})
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include(config-ix)
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#================================
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# Setup Compiler Flags
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#================================
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if(MSVC)
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# Override any existing /W flags with /W4. This is what LLVM does. Failing to
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# remove other /W[0-4] flags will result in a warning about overriding a
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# previous flag.
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if (COMPILER_RT_HAS_W4_FLAG)
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string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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append_string_if(COMPILER_RT_HAS_W4_FLAG /W4 CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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else()
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append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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if(COMPILER_RT_ENABLE_WERROR)
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append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS)
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# Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP.
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if(NOT COMPILER_RT_HAS_FUNC_SYMBOL)
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add_definitions(-D__func__=__FUNCTION__)
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endif()
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# Provide some common commmandline flags for Sanitizer runtimes.
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if(NOT WIN32)
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append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS)
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endif()
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append_list_if(COMPILER_RT_HAS_FNO_BUILTIN_FLAG -fno-builtin SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions SANITIZER_COMMON_CFLAGS)
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if(NOT COMPILER_RT_DEBUG AND NOT APPLE)
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append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS)
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endif()
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append_list_if(COMPILER_RT_HAS_FUNWIND_TABLES_FLAG -funwind-tables SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_STACK_PROTECTOR_FLAG -fno-stack-protector SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_SANITIZE_SAFE_STACK_FLAG -fno-sanitize=safe-stack SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS)
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if(NOT COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG)
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append_list_if(COMPILER_RT_HAS_FVISIBILITY_INLINES_HIDDEN_FLAG -fvisibility-inlines-hidden SANITIZER_COMMON_CFLAGS)
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endif()
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append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SANITIZER_COMMON_CFLAGS)
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# The following is a workaround for powerpc64le. This is the only architecture
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# that requires -fno-function-sections to work properly. If lacking, the ASan
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# Linux test function-sections-are-bad.cc fails with the following error:
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# 'undefined symbol: __sanitizer_unaligned_load32'.
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if(DEFINED TARGET_powerpc64le_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections TARGET_powerpc64le_CFLAGS)
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endif()
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if(MSVC)
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# Replace the /M[DT][d] flags with /MT, and strip any definitions of _DEBUG,
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# which cause definition mismatches at link time.
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# FIXME: In fact, sanitizers should support both /MT and /MD, see PR20214.
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if(COMPILER_RT_HAS_MT_FLAG)
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foreach(flag_var
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CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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string(REGEX REPLACE "/M[DT]d" "/MT" ${flag_var} "${${flag_var}}")
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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string(REGEX REPLACE "/D_DEBUG" "" ${flag_var} "${${flag_var}}")
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endforeach()
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endif()
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append_list_if(COMPILER_RT_HAS_Oy_FLAG /Oy- SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_GS_FLAG /GS- SANITIZER_COMMON_CFLAGS)
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# VS 2015 (version 1900) added support for thread safe static initialization.
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# However, ASan interceptors run before CRT initialization, which causes the
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# new thread safe code to crash. Disable this feature for now.
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if (MSVC_VERSION GREATER 1899 OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
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list(APPEND SANITIZER_COMMON_CFLAGS /Zc:threadSafeInit-)
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endif()
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endif()
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append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 SANITIZER_COMMON_CFLAGS)
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# If we're using MSVC,
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# always respect the optimization flags set by CMAKE_BUILD_TYPE instead.
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if (NOT MSVC)
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# Build with optimization, unless we're in debug mode.
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if(COMPILER_RT_DEBUG)
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list(APPEND SANITIZER_COMMON_CFLAGS -O0)
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else()
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list(APPEND SANITIZER_COMMON_CFLAGS -O3)
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endif()
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endif()
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# Determine if we should restrict stack frame sizes.
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# Stack frames on PowerPC and Mips and in debug biuld can be much larger than
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# anticipated.
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# FIXME: Fix all sanitizers and add -Wframe-larger-than to
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# SANITIZER_COMMON_FLAGS
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if(COMPILER_RT_HAS_WFRAME_LARGER_THAN_FLAG AND NOT COMPILER_RT_DEBUG
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AND NOT ${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "powerpc|mips")
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set(SANITIZER_LIMIT_FRAME_SIZE TRUE)
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else()
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set(SANITIZER_LIMIT_FRAME_SIZE FALSE)
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endif()
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if(FUCHSIA OR UNIX)
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set(SANITIZER_USE_SYMBOLS TRUE)
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else()
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set(SANITIZER_USE_SYMBOLS FALSE)
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endif()
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# Build sanitizer runtimes with debug info.
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if(MSVC)
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# Use /Z7 instead of /Zi for the asan runtime. This avoids the LNK4099
|
|
# warning from the MS linker complaining that it can't find the 'vc140.pdb'
|
|
# file used by our object library compilations.
|
|
list(APPEND SANITIZER_COMMON_CFLAGS /Z7)
|
|
foreach(var_to_update
|
|
CMAKE_CXX_FLAGS
|
|
CMAKE_CXX_FLAGS_DEBUG
|
|
CMAKE_CXX_FLAGS_RELWITHDEBINFO)
|
|
string(REGEX REPLACE "(^| )/Z[i7I]($| )" " /Z7 "
|
|
"${var_to_update}" "${${var_to_update}}")
|
|
endforeach()
|
|
elseif(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)
|
|
endif()
|
|
|
|
if(LLVM_ENABLE_MODULES)
|
|
# Sanitizers cannot be built with -fmodules. The interceptors intentionally
|
|
# don't include system headers, which is incompatible with modules.
|
|
list(APPEND SANITIZER_COMMON_CFLAGS -fno-modules)
|
|
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)
|
|
|
|
append_list_if(MINGW -fms-extensions SANITIZER_COMMON_CFLAGS)
|
|
|
|
# Set common link flags.
|
|
append_list_if(COMPILER_RT_HAS_NODEFAULTLIBS_FLAG -nodefaultlibs SANITIZER_COMMON_LINK_FLAGS)
|
|
append_list_if(COMPILER_RT_HAS_Z_TEXT -Wl,-z,text SANITIZER_COMMON_LINK_FLAGS)
|
|
|
|
if (COMPILER_RT_USE_BUILTINS_LIBRARY)
|
|
list(APPEND SANITIZER_COMMON_LINK_LIBS ${COMPILER_RT_BUILTINS_LIBRARY})
|
|
string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
|
|
else()
|
|
if (ANDROID)
|
|
append_list_if(COMPILER_RT_HAS_GCC_LIB gcc SANITIZER_COMMON_LINK_LIBS)
|
|
else()
|
|
append_list_if(COMPILER_RT_HAS_GCC_S_LIB gcc_s SANITIZER_COMMON_LINK_LIBS)
|
|
endif()
|
|
endif()
|
|
|
|
append_list_if(COMPILER_RT_HAS_LIBC c SANITIZER_COMMON_LINK_LIBS)
|
|
|
|
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Fuchsia")
|
|
list(APPEND SANITIZER_COMMON_LINK_FLAGS -Wl,-z,defs,-z,now,-z,relro)
|
|
list(APPEND SANITIZER_COMMON_LINK_LIBS zircon)
|
|
endif()
|
|
|
|
macro(append_libcxx_libs var)
|
|
if (${var}_INTREE)
|
|
if (SANITIZER_USE_STATIC_LLVM_UNWINDER AND (TARGET unwind_static OR HAVE_LIBUNWIND))
|
|
list(APPEND ${var}_LIBRARIES unwind_static)
|
|
elseif (TARGET unwind_shared OR HAVE_LIBUNWIND)
|
|
list(APPEND ${var}_LIBRARIES unwind_shared)
|
|
endif()
|
|
|
|
if (SANITIZER_USE_STATIC_CXX_ABI AND (TARGET cxxabi_static OR HAVE_LIBCXXABI))
|
|
list(APPEND ${var}_LIBRARIES cxxabi_static)
|
|
elseif (TARGET cxxabi_shared OR HAVE_LIBCXXABI)
|
|
list(APPEND ${var}_LIBRARIES cxxabi_shared)
|
|
endif()
|
|
else()
|
|
append_list_if(COMPILER_RT_HAS_LIBCXX c++ ${var}_LIBRARIES)
|
|
endif()
|
|
endmacro()
|
|
|
|
if (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libc++")
|
|
append_libcxx_libs(SANITIZER_CXX_ABI)
|
|
elseif (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libcxxabi")
|
|
list(APPEND SANITIZER_CXX_ABI_LIBRARIES "c++abi")
|
|
elseif (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libstdc++")
|
|
append_list_if(COMPILER_RT_HAS_LIBSTDCXX stdc++ SANITIZER_CXX_ABI_LIBRARIES)
|
|
endif()
|
|
|
|
if (SANITIZER_TEST_CXX_LIBNAME STREQUAL "libc++")
|
|
append_libcxx_libs(SANITIZER_TEST_CXX)
|
|
elseif (SANITIZER_TEST_CXX_LIBNAME STREQUAL "libstdc++")
|
|
append_list_if(COMPILER_RT_HAS_LIBSTDCXX stdc++ SANITIZER_TEST_CXX_LIBRARIES)
|
|
endif()
|
|
|
|
# Warnings to turn off for all libraries, not just sanitizers.
|
|
append_string_if(COMPILER_RT_HAS_WUNUSED_PARAMETER_FLAG -Wno-unused-parameter CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
|
|
|
|
if (CMAKE_LINKER MATCHES "link.exe$")
|
|
# Silence MSVC linker warnings caused by empty object files. The
|
|
# sanitizer libraries intentionally use ifdefs that result in empty
|
|
# files, rather than skipping these files in the build system.
|
|
# Ideally, we would pass this flag only for the libraries that need
|
|
# it, but CMake doesn't seem to have a way to set linker flags for
|
|
# individual static libraries, so we enable the suppression flag for
|
|
# the whole compiler-rt project.
|
|
set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /IGNORE:4221")
|
|
endif()
|
|
|
|
add_subdirectory(include)
|
|
|
|
option(COMPILER_RT_USE_LIBCXX
|
|
"Enable compiler-rt to use libc++ from the source tree" ON)
|
|
if(COMPILER_RT_USE_LIBCXX)
|
|
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxx
|
|
${LLVM_MAIN_SRC_DIR}/runtimes/libcxx
|
|
${LLVM_MAIN_SRC_DIR}/../libcxx
|
|
${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR})
|
|
if(IS_DIRECTORY ${path})
|
|
set(COMPILER_RT_LIBCXX_PATH ${path})
|
|
break()
|
|
endif()
|
|
endforeach()
|
|
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxxabi
|
|
${LLVM_MAIN_SRC_DIR}/runtimes/libcxxabi
|
|
${LLVM_MAIN_SRC_DIR}/../libcxxabi
|
|
${LLVM_EXTERNAL_LIBCXXABI_SOURCE_DIR})
|
|
if(IS_DIRECTORY ${path})
|
|
set(COMPILER_RT_LIBCXXABI_PATH ${path})
|
|
break()
|
|
endif()
|
|
endforeach()
|
|
endif()
|
|
|
|
set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/tools/lld)
|
|
if(EXISTS ${COMPILER_RT_LLD_PATH}/ AND LLVM_TOOL_LLD_BUILD)
|
|
set(COMPILER_RT_HAS_LLD TRUE)
|
|
else()
|
|
set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/../lld)
|
|
if(EXISTS ${COMPILER_RT_LLD_PATH}/ AND LLVM_TOOL_LLD_BUILD)
|
|
set(COMPILER_RT_HAS_LLD TRUE)
|
|
else()
|
|
set(COMPILER_RT_HAS_LLD FALSE)
|
|
endif()
|
|
endif()
|
|
pythonize_bool(COMPILER_RT_HAS_LLD)
|
|
|
|
add_subdirectory(lib)
|
|
|
|
if(COMPILER_RT_INCLUDE_TESTS)
|
|
add_subdirectory(unittests)
|
|
add_subdirectory(test)
|
|
if (COMPILER_RT_STANDALONE_BUILD)
|
|
# If we have a valid source tree, generate llvm-lit into the bin directory.
|
|
# The user can still choose to have the check targets *use* a different lit
|
|
# by specifying -DLLVM_EXTERNAL_LIT, but we generate it regardless.
|
|
if (EXISTS ${LLVM_MAIN_SRC_DIR}/utils/llvm-lit)
|
|
add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit ${CMAKE_CURRENT_BINARY_DIR}/llvm-lit)
|
|
elseif(NOT EXISTS ${LLVM_EXTERNAL_LIT})
|
|
message(WARNING "Could not find LLVM source directory and LLVM_EXTERNAL_LIT does not"
|
|
"point to a valid file. You will not be able to run tests.")
|
|
endif()
|
|
endif()
|
|
endif()
|