| # CMake build for CompilerRT. |
| # |
| # An important constraint of the build is that it only produces libraries |
| # based on the ability of the host toolchain to target various platforms. |
| |
| cmake_minimum_required(VERSION 3.13.4) |
| |
| # Check if compiler-rt is built as a standalone project. |
| if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR COMPILER_RT_STANDALONE_BUILD) |
| project(CompilerRT C CXX ASM) |
| set(COMPILER_RT_STANDALONE_BUILD TRUE) |
| set_property(GLOBAL PROPERTY USE_FOLDERS ON) |
| if ("${CMAKE_VERSION}" VERSION_LESS "3.20.0") |
| message(WARNING |
| "Your CMake version is ${CMAKE_VERSION}. Starting with LLVM 17.0.0, the " |
| "minimum version of CMake required to build LLVM will become 3.20.0, and " |
| "using an older CMake will become an error. Please upgrade your CMake to " |
| "at least 3.20.0 now to avoid issues in the future!") |
| endif() |
| endif() |
| |
| set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake") |
| |
| # Add path for custom compiler-rt modules. |
| list(INSERT CMAKE_MODULE_PATH 0 |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" |
| "${LLVM_COMMON_CMAKE_UTILS}" |
| "${LLVM_COMMON_CMAKE_UTILS}/Modules" |
| ) |
| |
| if(CMAKE_CONFIGURATION_TYPES) |
| set(CMAKE_CFG_RESOLVED_INTDIR "${CMAKE_CFG_INTDIR}/") |
| else() |
| set(CMAKE_CFG_RESOLVED_INTDIR "") |
| endif() |
| |
| include(SetPlatformToolchainTools) |
| include(base-config-ix) |
| include(CompilerRTUtils) |
| include(CMakeDependentOption) |
| |
| option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_BUILTINS) |
| option(COMPILER_RT_DISABLE_AARCH64_FMV "Disable AArch64 Function Multi Versioning support" OFF) |
| mark_as_advanced(COMPILER_RT_DISABLE_AARCH64_FMV) |
| option(COMPILER_RT_BUILD_CRT "Build crtbegin.o/crtend.o" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_CRT) |
| option(COMPILER_RT_CRT_USE_EH_FRAME_REGISTRY "Use eh_frame in crtbegin.o/crtend.o" ON) |
| mark_as_advanced(COMPILER_RT_CRT_USE_EH_FRAME_REGISTRY) |
| option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS) |
| option(COMPILER_RT_BUILD_XRAY "Build xray" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_XRAY) |
| option(COMPILER_RT_BUILD_LIBFUZZER "Build libFuzzer" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_LIBFUZZER) |
| option(COMPILER_RT_BUILD_PROFILE "Build profile runtime" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_PROFILE) |
| option(COMPILER_RT_BUILD_MEMPROF "Build memory profiling runtime" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_MEMPROF) |
| option(COMPILER_RT_BUILD_XRAY_NO_PREINIT "Build xray with no preinit patching" OFF) |
| mark_as_advanced(COMPILER_RT_BUILD_XRAY_NO_PREINIT) |
| option(COMPILER_RT_BUILD_ORC "Build ORC runtime" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_ORC) |
| option(COMPILER_RT_BUILD_GWP_ASAN "Build GWP-ASan, and link it into SCUDO" ON) |
| mark_as_advanced(COMPILER_RT_BUILD_GWP_ASAN) |
| option(COMPILER_RT_ENABLE_CET "Build Compiler RT with CET enabled" OFF) |
| |
| option(COMPILER_RT_SCUDO_STANDALONE_SYSROOT_PATH "Set custom sysroot for building SCUDO standalone" OFF) |
| mark_as_advanced(COMPILER_RT_SCUDO_STANDALONE_SYSROOT_PATH) |
| option(COMPILER_RT_SCUDO_STANDALONE_BUILD_SHARED "Build SCUDO standalone for shared libraries" ON) |
| mark_as_advanced(COMPILER_RT_SCUDO_STANDALONE_BUILD_SHARED) |
| option(COMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC "Build SCUDO standalone with LLVM's libc headers" OFF) |
| mark_as_advanced(COMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC) |
| |
| if(FUCHSIA) |
| set(COMPILER_RT_HWASAN_WITH_INTERCEPTORS_DEFAULT OFF) |
| else() |
| set(COMPILER_RT_HWASAN_WITH_INTERCEPTORS_DEFAULT ON) |
| endif() |
| set(COMPILER_RT_HWASAN_WITH_INTERCEPTORS ${COMPILER_RT_HWASAN_WITH_INTERCEPTORS_DEFAULT} CACHE BOOL "Enable libc interceptors in HWASan (testing mode)") |
| |
| set(COMPILER_RT_BAREMETAL_BUILD OFF CACHE BOOL |
| "Build for a bare-metal target.") |
| |
| if (COMPILER_RT_STANDALONE_BUILD) |
| set(CMAKE_CXX_STANDARD 17 CACHE STRING "C++ standard to conform to") |
| set(CMAKE_CXX_STANDARD_REQUIRED YES) |
| set(CMAKE_CXX_EXTENSIONS NO) |
| |
| if (NOT LLVM_RUNTIMES_BUILD) |
| load_llvm_config() |
| endif() |
| if (TARGET intrinsics_gen) |
| # Loading the llvm config causes this target to be imported so place it |
| # under the appropriate folder in an IDE. |
| set_target_properties(intrinsics_gen PROPERTIES FOLDER "Compiler-RT Misc") |
| endif() |
| |
| find_package(Python3 COMPONENTS Interpreter) |
| if(NOT Python3_Interpreter_FOUND) |
| message(WARNING "Python3 not found, using python2 as a fallback") |
| find_package(Python2 COMPONENTS Interpreter REQUIRED) |
| if(Python2_VERSION VERSION_LESS 2.7) |
| message(SEND_ERROR "Python 2.7 or newer is required") |
| endif() |
| |
| # Treat python2 as python3 |
| add_executable(Python3::Interpreter IMPORTED) |
| set_target_properties(Python3::Interpreter PROPERTIES |
| IMPORTED_LOCATION ${Python2_EXECUTABLE}) |
| set(Python3_EXECUTABLE ${Python2_EXECUTABLE}) |
| endif() |
| |
| # Ensure that fat libraries are built correctly on Darwin |
| if(APPLE) |
| include(UseLibtool) |
| endif() |
| |
| # Define default arguments to lit. |
| set(LIT_ARGS_DEFAULT "-sv") |
| if (MSVC OR XCODE) |
| set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar") |
| endif() |
| set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit") |
| set(LLVM_LIT_OUTPUT_DIR "${COMPILER_RT_EXEC_OUTPUT_DIR}") |
| endif() |
| |
| construct_compiler_rt_default_triple() |
| if ("${COMPILER_RT_DEFAULT_TARGET_TRIPLE}" MATCHES ".*hf$") |
| if (${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "^arm") |
| set(COMPILER_RT_DEFAULT_TARGET_ARCH "armhf") |
| CHECK_SYMBOL_EXISTS (__thumb__ "" COMPILER_RT_ARM_THUMB) |
| endif() |
| endif() |
| if (${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "^mips") |
| CHECK_SYMBOL_EXISTS (_MIPS_ARCH_MIPS32R6 "" COMPILER_RT_MIPS32R6) |
| CHECK_SYMBOL_EXISTS (_MIPS_ARCH_MIPS64R6 "" COMPILER_RT_MIPS64R6) |
| CHECK_SYMBOL_EXISTS (__mips64 "" COMPILER_RT_MIPS_64) |
| CHECK_SYMBOL_EXISTS (__MIPSEL__ "" COMPILER_RT_MIPS_EL) |
| if ("${COMPILER_RT_MIPS_64}") |
| set(COMPILER_RT_DEFAULT_TARGET_ARCH "mips64") |
| else() |
| set(COMPILER_RT_DEFAULT_TARGET_ARCH "mips") |
| endif() |
| if ("${COMPILER_RT_MIPS_EL}") |
| set(COMPILER_RT_DEFAULT_TARGET_ARCH "${COMPILER_RT_DEFAULT_TARGET_ARCH}el") |
| endif() |
| endif() |
| if ("${COMPILER_RT_DEFAULT_TARGET_TRIPLE}" MATCHES ".*android.*") |
| set(ANDROID 1) |
| string(REGEX MATCH "-target(=| +)[^ ]+android[a-z]*([0-9]+)" ANDROID_API_LEVEL "${CMAKE_C_FLAGS}") |
| set(ANDROID_API_LEVEL ${CMAKE_MATCH_2}) |
| endif() |
| pythonize_bool(ANDROID) |
| |
| set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) |
| set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) |
| |
| pythonize_bool(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR) |
| |
| # We support running instrumented tests when we're not cross-compiling |
| # and target a UNIX-like system or Windows. |
| # We can run tests on Android even when we are cross-compiling. |
| if((NOT "${CMAKE_CROSSCOMPILING}" AND (UNIX OR WIN32)) |
| 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) |
| option(COMPILER_RT_EXTERNALIZE_DEBUGINFO |
| "Generate dSYM files and strip executables and libraries (Darwin Only)" OFF) |
| # COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in. |
| pythonize_bool(COMPILER_RT_DEBUG) |
| |
| option(COMPILER_RT_INTERCEPT_LIBDISPATCH |
| "Support interception of libdispatch (GCD). Requires '-fblocks'" OFF) |
| option(COMPILER_RT_LIBDISPATCH_INSTALL_PATH |
| "Specify if libdispatch is installed in a custom location" "") |
| if (COMPILER_RT_INTERCEPT_LIBDISPATCH AND NOT APPLE) |
| set(COMPILER_RT_LIBDISPATCH_CFLAGS -fblocks) |
| set(COMPILER_RT_TEST_LIBDISPATCH_CFLAGS) |
| if (COMPILER_RT_LIBDISPATCH_INSTALL_PATH) |
| list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS |
| -I${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/include |
| -L${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/lib |
| -Wl,-rpath=${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/lib) |
| endif() |
| list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS -lBlocksRuntime -ldispatch) |
| endif() |
| if (APPLE) # Always enable on Apple platforms. |
| set(COMPILER_RT_INTERCEPT_LIBDISPATCH ON) |
| endif() |
| pythonize_bool(COMPILER_RT_INTERCEPT_LIBDISPATCH) |
| |
| if(APPLE AND SANITIZER_MIN_OSX_VERSION AND SANITIZER_MIN_OSX_VERSION VERSION_LESS "10.9") |
| # Mac OS X prior to 10.9 had problems with exporting symbols from |
| # libc++/libc++abi. |
| set(cxxabi_supported OFF) |
| else() |
| set(cxxabi_supported ON) |
| endif() |
| |
| option(SANITIZER_ALLOW_CXXABI "Allow use of C++ ABI details in ubsan" ON) |
| |
| set(SANITIZER_CAN_USE_CXXABI OFF) |
| if (cxxabi_supported AND SANITIZER_ALLOW_CXXABI) |
| set(SANITIZER_CAN_USE_CXXABI ON) |
| endif() |
| pythonize_bool(SANITIZER_CAN_USE_CXXABI) |
| |
| macro(handle_default_cxx_lib var) |
| # Specifying -stdlib= in CMAKE_CXX_FLAGS overrides the defaults. |
| if (CMAKE_CXX_FLAGS MATCHES "-stdlib=([a-zA-Z+]*)") |
| set(${var}_LIBNAME "${CMAKE_MATCH_1}") |
| set(${var}_SYSTEM 1) |
| elseif (${var} STREQUAL "default") |
| if (APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD") |
| set(${var}_LIBNAME "libc++") |
| set(${var}_SYSTEM 1) |
| elseif (FUCHSIA) |
| set(${var}_LIBNAME "libc++") |
| set(${var}_INTREE 1) |
| else() |
| set(${var}_LIBNAME "libstdc++") |
| set(${var}_SYSTEM 1) |
| endif() |
| else() |
| set(${var}_LIBNAME "${${var}}") |
| set(${var}_SYSTEM 1) |
| endif() |
| endmacro() |
| |
| # This is either directly the C++ ABI library or the full C++ library |
| # which pulls in the ABI transitively. |
| # TODO: Mark this as internal flag, most users should use COMPILER_RT_CXX_LIBRARY. |
| set(SANITIZER_CXX_ABI "default" CACHE STRING |
| "Specify C++ ABI library to use.") |
| set(CXXABIS none default libstdc++ libc++ libcxxabi) |
| set_property(CACHE SANITIZER_CXX_ABI PROPERTY STRINGS ;${CXXABIS}) |
| handle_default_cxx_lib(SANITIZER_CXX_ABI) |
| |
| # This needs to be a full C++ library for linking gtest and unit tests. |
| # TODO: Mark this as internal flag, most users should use COMPILER_RT_CXX_LIBRARY. |
| set(SANITIZER_TEST_CXX "default" CACHE STRING |
| "Specify C++ library to use for tests.") |
| set(CXXLIBS none default libstdc++ libc++) |
| set_property(CACHE SANITIZER_TEST_CXX PROPERTY STRINGS ;${CXXLIBS}) |
| handle_default_cxx_lib(SANITIZER_TEST_CXX) |
| |
| option(COMPILER_RT_USE_LLVM_UNWINDER "Use the LLVM unwinder." OFF) |
| cmake_dependent_option(COMPILER_RT_ENABLE_STATIC_UNWINDER |
| "Statically link the LLVM unwinder." OFF |
| "COMPILER_RT_USE_LLVM_UNWINDER" OFF) |
| |
| set(DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER OFF) |
| if (FUCHSIA) |
| set(DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER ON) |
| elseif (DEFINED LIBUNWIND_ENABLE_SHARED AND NOT LIBUNWIND_ENABLE_SHARED) |
| set(DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER ON) |
| endif() |
| |
| option(SANITIZER_USE_STATIC_LLVM_UNWINDER |
| "Use static LLVM unwinder." ${DEFAULT_SANITIZER_USE_STATIC_LLVM_UNWINDER}) |
| pythonize_bool(SANITIZER_USE_STATIC_LLVM_UNWINDER) |
| |
| set(DEFAULT_SANITIZER_USE_STATIC_CXX_ABI OFF) |
| if (DEFINED LIBCXXABI_ENABLE_SHARED AND NOT LIBCXXABI_ENABLE_SHARED) |
| set(DEFAULT_SANITIZER_USE_STATIC_CXX_ABI ON) |
| endif() |
| |
| option(SANITIZER_USE_STATIC_CXX_ABI |
| "Use static libc++abi." ${DEFAULT_SANITIZER_USE_STATIC_CXX_ABI}) |
| pythonize_bool(SANITIZER_USE_STATIC_CXX_ABI) |
| |
| set(DEFAULT_SANITIZER_USE_STATIC_TEST_CXX OFF) |
| if (DEFINED LIBCXX_ENABLE_SHARED AND NOT LIBCXX_ENABLE_SHARED) |
| set(DEFAULT_SANITIZER_USE_STATIC_TEST_CXX ON) |
| endif() |
| |
| option(SANITIZER_USE_STATIC_TEST_CXX |
| "Use static libc++ for tests." ${DEFAULT_SANITIZER_USE_STATIC_TEST_CXX}) |
| pythonize_bool(SANITIZER_USE_STATIC_TEST_CXX) |
| |
| set(COMPILER_RT_SUPPORTED_CXX_LIBRARIES none default libcxx) |
| set(COMPILER_RT_CXX_LIBRARY "default" CACHE STRING "Specify C++ library to use. Supported values are ${COMPILER_RT_SUPPORTED_CXX_LIBRARIES}.") |
| if (NOT "${COMPILER_RT_CXX_LIBRARY}" IN_LIST COMPILER_RT_SUPPORTED_CXX_LIBRARIES) |
| message(FATAL_ERROR "Unsupported C++ library: '${COMPILER_RT_CXX_LIBRARY}'. Supported values are ${COMPILER_RT_SUPPORTED_CXX_LIBRARIES}.") |
| endif() |
| cmake_dependent_option(COMPILER_RT_STATIC_CXX_LIBRARY |
| "Statically link the C++ library." OFF |
| "COMPILER_RT_CXX_LIBRARY" OFF) |
| |
| set(DEFAULT_COMPILER_RT_USE_BUILTINS_LIBRARY OFF) |
| if (FUCHSIA) |
| set(DEFAULT_COMPILER_RT_USE_BUILTINS_LIBRARY ON) |
| endif() |
| |
| option(COMPILER_RT_USE_BUILTINS_LIBRARY |
| "Use compiler-rt builtins instead of libgcc" ${DEFAULT_COMPILER_RT_USE_BUILTINS_LIBRARY}) |
| |
| include(config-ix) |
| |
| #================================ |
| # Setup Compiler Flags |
| #================================ |
| |
| # fcf-protection is a gcc/clang option for CET support on Linux platforms. |
| # We need to handle MSVC CET option on Windows platforms. |
| if (NOT MSVC) |
| if (COMPILER_RT_ENABLE_CET AND NOT COMPILER_RT_HAS_FCF_PROTECTION_FLAG) |
| message(FATAL_ERROR "Compiler used to build compiler-rt doesn't support CET!") |
| endif() |
| endif() |
| |
| if(MSVC) |
| # Override any existing /W flags with /W4. This is what LLVM does. Failing to |
| # remove other /W[0-4] flags will result in a warning about overriding a |
| # previous flag. |
| if (COMPILER_RT_HAS_W4_FLAG) |
| string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}") |
| string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") |
| append_string_if(COMPILER_RT_HAS_W4_FLAG /W4 CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| endif() |
| else() |
| append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| endif() |
| if(COMPILER_RT_ENABLE_WERROR) |
| append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| endif() |
| |
| # Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP. |
| if(NOT COMPILER_RT_HAS_FUNC_SYMBOL) |
| add_definitions(-D__func__=__FUNCTION__) |
| endif() |
| |
| # Provide some common commandline flags for Sanitizer runtimes. |
| if("${ANDROID_API_LEVEL}" GREATER_EQUAL 29) |
| list(APPEND SANITIZER_COMMON_CFLAGS -fno-emulated-tls) |
| string(APPEND COMPILER_RT_TEST_COMPILER_CFLAGS " -fno-emulated-tls") |
| endif() |
| if(NOT WIN32) |
| append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS) |
| endif() |
| 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) |
| if(NOT COMPILER_RT_DEBUG AND NOT APPLE) |
| append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS) |
| endif() |
| 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_FNO_SANITIZE_SAFE_STACK_FLAG -fno-sanitize=safe-stack SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS) |
| if(NOT COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG) |
| append_list_if(COMPILER_RT_HAS_FVISIBILITY_INLINES_HIDDEN_FLAG -fvisibility-inlines-hidden SANITIZER_COMMON_CFLAGS) |
| endif() |
| append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SANITIZER_COMMON_CFLAGS) |
| |
| # By default do not instrument or use profdata for compiler-rt. |
| if(NOT COMPILER_RT_ENABLE_PGO) |
| if(LLVM_PROFDATA_FILE AND COMPILER_RT_HAS_FNO_PROFILE_INSTR_USE_FLAG) |
| list(APPEND SANITIZER_COMMON_CFLAGS "-fno-profile-instr-use") |
| endif() |
| if(LLVM_BUILD_INSTRUMENTED MATCHES IR AND COMPILER_RT_HAS_FNO_PROFILE_GENERATE_FLAG) |
| list(APPEND SANITIZER_COMMON_CFLAGS "-fno-profile-generate") |
| elseif((LLVM_BUILD_INSTRUMENTED OR LLVM_BUILD_INSTRUMENTED_COVERAGE) AND COMPILER_RT_HAS_FNO_PROFILE_INSTR_GENERATE_FLAG) |
| list(APPEND SANITIZER_COMMON_CFLAGS "-fno-profile-instr-generate") |
| if(LLVM_BUILD_INSTRUMENTED_COVERAGE AND COMPILER_RT_HAS_FNO_COVERAGE_MAPPING_FLAG) |
| list(APPEND SANITIZER_COMMON_CFLAGS "-fno-coverage-mapping") |
| endif() |
| endif() |
| endif() |
| |
| # The following is a workaround for powerpc64le. This is the only architecture |
| # that requires -fno-function-sections to work properly. If lacking, the ASan |
| # Linux test function-sections-are-bad.cpp fails with the following error: |
| # 'undefined symbol: __sanitizer_unaligned_load32'. |
| if(DEFINED TARGET_powerpc64le_CFLAGS) |
| if(CMAKE_CXX_COMPILER_ID MATCHES "XL") |
| append("-qnofuncsect" TARGET_powerpc64le_CFLAGS) |
| else() |
| append_list_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections TARGET_powerpc64le_CFLAGS) |
| endif() |
| endif() |
| |
| # The following is a workaround for s390x. This avoids creation of "partial |
| # inline" function fragments when building the asan libraries with certain |
| # GCC versions. The presence of those fragments, in particular for the |
| # interceptors, changes backtraces seen in asan error cases, which causes |
| # testsuite failures. |
| if("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "s390x") |
| append_list_if(COMPILER_RT_HAS_FNO_PARTIAL_INLINING_FLAG -fno-partial-inlining SANITIZER_COMMON_CFLAGS) |
| endif() |
| |
| if(MSVC) |
| # Replace the /M[DT][d] flags with /MT, and strip any definitions of _DEBUG, |
| # which cause definition mismatches at link time. |
| # FIXME: In fact, sanitizers should support both /MT and /MD, see PR20214. |
| if(COMPILER_RT_HAS_MT_FLAG) |
| foreach(flag_var |
| CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE |
| CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO |
| CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE |
| CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO) |
| string(REGEX REPLACE "/M[DT]d" "/MT" ${flag_var} "${${flag_var}}") |
| string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}") |
| string(REGEX REPLACE "/D_DEBUG" "" ${flag_var} "${${flag_var}}") |
| 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) |
| |
| # Disable thread safe initialization for static locals. ASan shouldn't need |
| # it. Thread safe initialization assumes that the CRT has already been |
| # initialized, but ASan initializes before the CRT. |
| list(APPEND SANITIZER_COMMON_CFLAGS /Zc:threadSafeInit-) |
| endif() |
| |
| append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 SANITIZER_COMMON_CFLAGS) |
| |
| append_list_if(COMPILER_RT_HAS_WTHREAD_SAFETY_FLAG -Wthread-safety THREAD_SAFETY_FLAGS) |
| append_list_if(COMPILER_RT_HAS_WTHREAD_SAFETY_REFERENCE_FLAG -Wthread-safety-reference THREAD_SAFETY_FLAGS) |
| append_list_if(COMPILER_RT_HAS_WTHREAD_SAFETY_BETA_FLAG -Wthread-safety-beta THREAD_SAFETY_FLAGS) |
| list(APPEND SANITIZER_COMMON_CFLAGS ${THREAD_SAFETY_FLAGS}) |
| string(REPLACE ";" " " thread_safety_flags_space_sep "${THREAD_SAFETY_FLAGS}") |
| string(APPEND COMPILER_RT_TEST_COMPILER_CFLAGS " ${thread_safety_flags_space_sep}") |
| |
| # If we're using MSVC, |
| # always respect the optimization flags set by CMAKE_BUILD_TYPE instead. |
| if (NOT MSVC) |
| |
| # Build with optimization, unless we're in debug mode. |
| if(COMPILER_RT_DEBUG) |
| list(APPEND SANITIZER_COMMON_CFLAGS -O1) |
| else() |
| list(APPEND SANITIZER_COMMON_CFLAGS -O3) |
| endif() |
| endif() |
| |
| # Determine if we should restrict stack frame sizes. |
| # Stack frames on PowerPC, Mips, SystemZ and in debug build 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 ${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "powerpc|mips|s390x") |
| set(SANITIZER_LIMIT_FRAME_SIZE TRUE) |
| else() |
| set(SANITIZER_LIMIT_FRAME_SIZE FALSE) |
| endif() |
| |
| if(FUCHSIA OR UNIX) |
| set(SANITIZER_USE_SYMBOLS TRUE) |
| else() |
| set(SANITIZER_USE_SYMBOLS FALSE) |
| endif() |
| |
| # Build sanitizer runtimes with debug info. |
| if(MSVC) |
| # Use /Z7 instead of /Zi for the asan runtime. This avoids the LNK4099 |
| # warning from the MS linker complaining that it can't find the 'vc140.pdb' |
| # file used by our object library compilations. |
| list(APPEND SANITIZER_COMMON_CFLAGS /Z7) |
| foreach(var_to_update |
| CMAKE_CXX_FLAGS |
| CMAKE_CXX_FLAGS_DEBUG |
| CMAKE_CXX_FLAGS_RELWITHDEBINFO) |
| string(REGEX REPLACE "(^| )/Z[i7I]($| )" " /Z7 " |
| "${var_to_update}" "${${var_to_update}}") |
| endforeach() |
| elseif(APPLE) |
| # On Apple platforms use full debug info (i.e. not `-gline-tables-only`) |
| # for all build types so that the runtime can be debugged. |
| if(NOT COMPILER_RT_HAS_G_FLAG) |
| message(FATAL_ERROR "-g is not supported by host compiler") |
| endif() |
| list(APPEND SANITIZER_COMMON_CFLAGS -g) |
| 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) |
| # format-pedantic warns about passing T* for %p, which is not useful. |
| 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) |
| |
| # When lsan scans the stack for detecting reachable pointers, it's possible for |
| # a leaked pointer, which was pushed to the stack on an earlier function call, |
| # to still exist on the stack when doing a leak check if that part of the stack |
| # was not overwritten. In particular, if there's any uninitialized data in the |
| # lsan runtime, and the SP we start from is sufficiently deep into the runtime, |
| # then a leaked pointer could be marked as reachable. Such instances could be |
| # mitigated by clobbering any uninitialized data. Note that this won't cover |
| # all possible uninitialized stack contents, such as those used for register |
| # spill slots, unused portions for alignment, or even local variables not |
| # yet in scope at a certain point in the function. |
| # |
| # Note that this type of issue was discovered with lsan, but can apply to other |
| # sanitizers. |
| append_list_if(COMPILER_RT_HAS_TRIVIAL_AUTO_INIT -ftrivial-auto-var-init=pattern SANITIZER_COMMON_CFLAGS) |
| |
| # Set common link flags. |
| # TODO: We should consider using the same model as libc++, that is use either |
| # -nostdlib++ and --unwindlib=none if supported, or -nodefaultlibs otherwise. |
| append_list_if(C_SUPPORTS_NODEFAULTLIBS_FLAG -nodefaultlibs SANITIZER_COMMON_LINK_FLAGS) |
| append_list_if(COMPILER_RT_HAS_Z_TEXT -Wl,-z,text SANITIZER_COMMON_LINK_FLAGS) |
| |
| # Only necessary for 32-bit SPARC. Solaris 11.2+ ld uses -z ignore/-z record |
| # natively, but supports --as-needed/--no-as-needed for GNU ld compatibility. |
| if("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "sparc") |
| list(APPEND SANITIZER_COMMON_LINK_LIBS -Wl,--as-needed atomic -Wl,--no-as-needed) |
| endif() |
| |
| if (COMPILER_RT_USE_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_LIBS zircon) |
| endif() |
| |
| if("${CMAKE_SYSTEM_NAME}" STREQUAL "Fuchsia") |
| set(SANITIZER_NO_UNDEFINED_SYMBOLS_DEFAULT ON) |
| else() |
| set(SANITIZER_NO_UNDEFINED_SYMBOLS_DEFAULT OFF) |
| endif() |
| option(SANITIZER_NO_UNDEFINED_SYMBOLS "Report error on unresolved symbol references" ${SANITIZER_NO_UNDEFINED_SYMBOLS_DEFAULT}) |
| if (SANITIZER_NO_UNDEFINED_SYMBOLS) |
| list(APPEND SANITIZER_COMMON_LINK_FLAGS -Wl,-z,defs) |
| endif() |
| |
| # TODO: COMPILER_RT_COMMON_CFLAGS and COMPILER_RT_COMMON_LINK_FLAGS are |
| # intended for use in non-sanitizer runtimes such as libFuzzer, profile or XRay, |
| # move these higher to include common flags, then derive SANITIZER_COMMON_CFLAGS |
| # and SANITIZER_COMMON_LINK_FLAGS from those and append sanitizer-specific flags. |
| set(COMPILER_RT_COMMON_CFLAGS ${SANITIZER_COMMON_CFLAGS}) |
| set(COMPILER_RT_COMMON_LINK_FLAGS ${SANITIZER_COMMON_LINK_FLAGS}) |
| |
| # We don't use the C++ standard library, so avoid including it by mistake. |
| append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ SANITIZER_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_NOSTDLIBXX_FLAG -nostdlib++ SANITIZER_COMMON_LINK_FLAGS) |
| |
| # Remove -stdlib= which is unused when passing -nostdinc++... |
| string(REGEX MATCHALL "-stdlib=[a-zA-Z+]*" stdlib_flag "${CMAKE_CXX_FLAGS}") |
| string(REGEX REPLACE "-stdlib=[a-zA-Z+]*" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") |
| |
| # ...we need it to build some runtimes and tests so readd it where appropriate. |
| list(APPEND COMPILER_RT_COMMON_CFLAGS ${stdlib_flag}) |
| list(APPEND COMPILER_RT_COMMON_LINK_FLAGS ${stdlib_flag}) |
| |
| # TODO: There's a lot of duplication across lib/*/tests/CMakeLists.txt files, |
| # move some of the common flags to COMPILER_RT_UNITTEST_CFLAGS. |
| |
| # Unittests need access to C++ standard library. |
| string(APPEND COMPILER_RT_TEST_COMPILER_CFLAGS " ${stdlib_flag}") |
| |
| # When cross-compiling, COMPILER_RT_TEST_COMPILER_CFLAGS help in compilation |
| # and linking of unittests. |
| string(REPLACE " " ";" COMPILER_RT_UNITTEST_CFLAGS "${COMPILER_RT_TEST_COMPILER_CFLAGS}") |
| set(COMPILER_RT_UNITTEST_LINK_FLAGS ${COMPILER_RT_UNITTEST_CFLAGS}) |
| |
| if(COMPILER_RT_USE_LLVM_UNWINDER) |
| # We're linking directly against the libunwind that we're building so don't |
| # try to link in the toolchain's default libunwind which may be missing. |
| append_list_if(CXX_SUPPORTS_UNWINDLIB_NONE_FLAG --unwindlib=none COMPILER_RT_COMMON_LINK_FLAGS) |
| append_list_if(CXX_SUPPORTS_UNWINDLIB_NONE_FLAG --unwindlib=none COMPILER_RT_UNITTEST_LINK_FLAGS) |
| if (COMPILER_RT_ENABLE_STATIC_UNWINDER) |
| list(APPEND COMPILER_RT_UNWINDER_LINK_LIBS "$<TARGET_LINKER_FILE:unwind_static>") |
| else() |
| list(APPEND COMPILER_RT_UNWINDER_LINK_LIBS "$<TARGET_LINKER_FILE:$<IF:$<TARGET_EXISTS:unwind_shared>,unwind_shared,unwind_static>>") |
| endif() |
| endif() |
| |
| if (COMPILER_RT_CXX_LIBRARY STREQUAL "libcxx") |
| # We are using the in-tree libc++ so avoid including the default one. |
| append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ COMPILER_RT_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_NOSTDLIBXX_FLAG -nostdlib++ COMPILER_RT_COMMON_LINK_FLAGS) |
| # Use the in-tree libc++ through explicit include and library paths. |
| set(COMPILER_RT_CXX_CFLAGS "$<$<TARGET_EXISTS:cxx-headers>:$<IF:$<BOOL:${MSVC}>,/imsvc,-isystem>$<JOIN:$<TARGET_PROPERTY:cxx-headers,INTERFACE_INCLUDE_DIRECTORIES>,$<SEMICOLON>$<IF:$<BOOL:${MSVC}>,/imsvc,-isystem>>>") |
| if (COMPILER_RT_STATIC_CXX_LIBRARY) |
| set(COMPILER_RT_CXX_LINK_LIBS "$<TARGET_LINKER_FILE:cxx_static>") |
| else() |
| set(COMPILER_RT_CXX_LINK_LIBS "$<TARGET_LINKER_FILE:$<IF:$<TARGET_EXISTS:cxx_shared>,cxx_shared,cxx_static>>") |
| endif() |
| elseif (COMPILER_RT_CXX_LIBRARY STREQUAL "none") |
| # We aren't using any C++ standard library so avoid including the default one. |
| append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ COMPILER_RT_COMMON_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_NOSTDLIBXX_FLAG -nostdlib++ COMPILER_RT_COMMON_LINK_FLAGS) |
| else() |
| # Nothing to be done for `default`. |
| endif() |
| |
| if (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libc++") |
| if (SANITIZER_CXX_ABI_INTREE) |
| # TODO: We don't need to add --unwindlib=none to SANITIZER_COMMON_LINK_FLAGS |
| # because we added -nodefaultlibs there earlier, and adding would result in |
| # a warning, but if we switch to -nostdlib++, we would need to add it here. |
| # append_list_if(CXX_SUPPORTS_UNWINDLIB_NONE_FLAG --unwindlib=none SANITIZER_COMMON_LINK_FLAGS) |
| if(SANITIZER_USE_STATIC_CXX_ABI) |
| if(TARGET libcxx-abi-static) |
| set(SANITIZER_CXX_ABI_LIBRARIES libcxx-abi-static) |
| endif() |
| else() |
| if(TARGET libcxx-abi-shared) |
| set(SANITIZER_CXX_ABI_LIBRARIES libcxx-abi-shared) |
| elseif(TARGET libcxx-abi-static) |
| set(SANITIZER_CXX_ABI_LIBRARIES libcxx-abi-static) |
| endif() |
| endif() |
| else() |
| append_list_if(COMPILER_RT_HAS_LIBCXX c++ SANITIZER_CXX_ABI_LIBRARIES) |
| endif() |
| 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++") |
| if (SANITIZER_TEST_CXX_INTREE) |
| list(APPEND SANITIZER_TEST_CXX_CFLAGS "$<$<TARGET_EXISTS:cxx-headers>:$<IF:$<BOOL:${MSVC}>,/imsvc,-isystem>$<JOIN:$<TARGET_PROPERTY:cxx-headers,INTERFACE_INCLUDE_DIRECTORIES>,$<SEMICOLON>$<IF:$<BOOL:${MSVC}>,/imsvc,-isystem>>>") |
| if (SANITIZER_USE_STATIC_TEST_CXX) |
| list(APPEND SANITIZER_TEST_CXX_LIBRARIES "$<TARGET_LINKER_FILE:cxx_static>") |
| else() |
| list(APPEND SANITIZER_TEST_CXX_LIBRARIES "$<TARGET_LINKER_FILE:$<IF:$<TARGET_EXISTS:cxx_shared>,cxx_shared,cxx_static>>") |
| endif() |
| # We are using the in tree libc++ so avoid including the default one. |
| append_list_if(COMPILER_RT_HAS_NOSTDINCXX_FLAG -nostdinc++ COMPILER_RT_UNITTEST_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_NOSTDLIBXX_FLAG -nostdlib++ COMPILER_RT_UNITTEST_LINK_FLAGS) |
| else() |
| append_list_if(COMPILER_RT_HAS_LIBCXX -lc++ SANITIZER_TEST_CXX_LIBRARIES) |
| endif() |
| elseif (SANITIZER_TEST_CXX_LIBNAME STREQUAL "libstdc++") |
| append_list_if(COMPILER_RT_HAS_LIBSTDCXX -lstdc++ SANITIZER_TEST_CXX_LIBRARIES) |
| endif() |
| |
| # Unittests support. |
| # FIXME: When compiler-rt is build using -DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON, then |
| # The LLVM_THIRD_PARTY_DIR variable is not set. |
| if (NOT LLVM_THIRD_PARTY_DIR) |
| set(LLVM_THIRD_PARTY_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../third-party") |
| endif() |
| |
| set(COMPILER_RT_GTEST_PATH ${LLVM_THIRD_PARTY_DIR}/unittest/googletest) |
| set(COMPILER_RT_GTEST_SOURCE ${COMPILER_RT_GTEST_PATH}/src/gtest-all.cc) |
| set(COMPILER_RT_GTEST_CFLAGS |
| -DGTEST_NO_LLVM_SUPPORT=1 |
| -DGTEST_HAS_RTTI=0 |
| -I${COMPILER_RT_GTEST_PATH}/include |
| -I${COMPILER_RT_GTEST_PATH} |
| ) |
| |
| # Mocking support. |
| set(COMPILER_RT_GMOCK_PATH ${LLVM_THIRD_PARTY_DIR}/unittest/googlemock) |
| set(COMPILER_RT_GMOCK_SOURCE ${COMPILER_RT_GMOCK_PATH}/src/gmock-all.cc) |
| set(COMPILER_RT_GMOCK_CFLAGS |
| -DGTEST_NO_LLVM_SUPPORT=1 |
| -DGTEST_HAS_RTTI=0 |
| -I${COMPILER_RT_GMOCK_PATH}/include |
| -I${COMPILER_RT_GMOCK_PATH} |
| ) |
| |
| if(COMPILER_RT_HAS_G_FLAG) |
| list(APPEND COMPILER_RT_UNITTEST_CFLAGS -g) |
| endif() |
| append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 COMPILER_RT_UNITTEST_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WCOVERED_SWITCH_DEFAULT_FLAG -Wno-covered-switch-default COMPILER_RT_UNITTEST_CFLAGS) |
| append_list_if(COMPILER_RT_HAS_WSUGGEST_OVERRIDE_FLAG -Wno-suggest-override COMPILER_RT_UNITTEST_CFLAGS) |
| |
| if(MSVC) |
| # gtest use a lot of stuff marked as deprecated on Windows. |
| list(APPEND COMPILER_RT_GTEST_CFLAGS -Wno-deprecated-declarations) |
| endif() |
| |
| # Warnings to turn off for all libraries, not just sanitizers. |
| append_string_if(COMPILER_RT_HAS_WUNUSED_PARAMETER_FLAG -Wno-unused-parameter CMAKE_C_FLAGS CMAKE_CXX_FLAGS) |
| |
| if (CMAKE_LINKER MATCHES "link.exe$") |
| # 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) |
| if(LLVM_ENABLE_PROJECTS_USED) |
| # Don't use libcxx if LLVM_ENABLE_PROJECTS does not enable it. |
| set(COMPILER_RT_LIBCXX_PATH ${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR}) |
| set(COMPILER_RT_LIBCXXABI_PATH ${LLVM_EXTERNAL_LIBCXXABI_SOURCE_DIR}) |
| else() |
| 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() |
| 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) |
| endif() |
| endif() |
| |
| if(ANDROID) |
| set(COMPILER_RT_HAS_LLD TRUE) |
| set(COMPILER_RT_TEST_USE_LLD TRUE) |
| append_list_if(COMPILER_RT_HAS_FUSE_LD_LLD_FLAG -fuse-ld=lld SANITIZER_COMMON_LINK_FLAGS) |
| append_list_if(COMPILER_RT_HAS_LLD -fuse-ld=lld COMPILER_RT_UNITTEST_LINK_FLAGS) |
| endif() |
| pythonize_bool(COMPILER_RT_HAS_LLD) |
| pythonize_bool(COMPILER_RT_TEST_USE_LLD) |
| |
| add_subdirectory(lib) |
| |
| if(COMPILER_RT_INCLUDE_TESTS) |
| add_subdirectory(unittests) |
| add_subdirectory(test) |
| # Don't build llvm-lit for runtimes-build, it will clean up map_config. |
| if (COMPILER_RT_STANDALONE_BUILD AND NOT LLVM_RUNTIMES_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 ${LLVM_MAIN_SRC_DIR}/utils/llvm-lit) |
| # Needed for lit support in standalone builds. |
| include(AddLLVM) |
| add_subdirectory(${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() |
| |
| add_subdirectory(tools) |