cmake_minimum_required(VERSION 3.20.0) set(LLVM_SUBPROJECT_TITLE "BOLT") if(NOT DEFINED LLVM_COMMON_CMAKE_UTILS) set(LLVM_COMMON_CMAKE_UTILS ${CMAKE_CURRENT_SOURCE_DIR}/../cmake) endif() include(${LLVM_COMMON_CMAKE_UTILS}/Modules/CMakePolicy.cmake NO_POLICY_SCOPE) if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) project(bolt) set(BOLT_BUILT_STANDALONE TRUE) endif() set(BOLT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(BOLT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) set(CMAKE_CXX_STANDARD 17) # Add path for custom modules. list(INSERT CMAKE_MODULE_PATH 0 "${BOLT_SOURCE_DIR}/cmake/modules") include(GNUInstallDirs) # standalone build, copied from clang if(BOLT_BUILT_STANDALONE) 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 MSVC_IDE) set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS} CACHE BOOL "Enable assertions") # Assertions should follow llvm-config's. mark_as_advanced(LLVM_ENABLE_ASSERTIONS) endif() find_package(LLVM REQUIRED HINTS "${LLVM_CMAKE_DIR}") list(APPEND CMAKE_MODULE_PATH "${LLVM_DIR}") set(LLVM_MAIN_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../llvm" CACHE PATH "Path to LLVM source tree") find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH) # They are used as destination of target generators. set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin) set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}) include(AddLLVM) include(TableGen) include_directories(${LLVM_INCLUDE_DIRS}) link_directories("${LLVM_LIBRARY_DIR}") set( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_INSTALL_BINDIR}" ) set( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_INSTALL_LIBDIR}/${LLVM_LIBDIR_SUFFIX}" ) set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_INSTALL_LIBDIR}/${LLVM_LIBDIR_SUFFIX}") endif() # standalone # Determine default set of targets to build -- the intersection of # those BOLT supports and those LLVM is targeting. set(BOLT_TARGETS_TO_BUILD_all "AArch64;X86;RISCV") set(BOLT_TARGETS_TO_BUILD_default) foreach (tgt ${BOLT_TARGETS_TO_BUILD_all}) if (tgt IN_LIST LLVM_TARGETS_TO_BUILD) list(APPEND BOLT_TARGETS_TO_BUILD_default ${tgt}) endif() endforeach() # Allow the user to specify the BOLT targets, and then check that LLVM # is indeed targeting those. set(BOLT_TARGETS_TO_BUILD "${BOLT_TARGETS_TO_BUILD_default}" CACHE STRING "Targets for BOLT to support.") if (NOT BOLT_TARGETS_TO_BUILD) message(FATAL_ERROR "BOLT enabled but BOLT_TARGETS_TO_BUILD is empty") endif() foreach (tgt ${BOLT_TARGETS_TO_BUILD}) if (NOT tgt IN_LIST LLVM_TARGETS_TO_BUILD) message(FATAL_ERROR "BOLT target '${tgt}' is not in LLVM_TARGETS_TO_BUILD") endif() message(STATUS "Targeting ${tgt} in llvm-bolt") endforeach() set(BOLT_ENABLE_RUNTIME_default OFF) if ((CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm64|aarch64)$") AND (CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Darwin") AND (NOT CMAKE_CROSSCOMPILING)) set(BOLT_ENABLE_RUNTIME_default ON) endif() option(BOLT_ENABLE_RUNTIME "Enable BOLT runtime" ${BOLT_ENABLE_RUNTIME_default}) if (BOLT_ENABLE_RUNTIME) # Some systems prevent reading /proc/self/map_files execute_process(COMMAND ls /proc/self/map_files RESULT_VARIABLE LS OUTPUT_QUIET ERROR_QUIET) if (LS) message(WARNING "BOLT runtime may not be able to read /proc/self/map_files. Please use `--instrumentation-binpath ` option.") endif() endif() set(BOLT_CLANG_EXE "" CACHE FILEPATH "Path to clang executable for the target \ architecture for use in BOLT tests") set(BOLT_LLD_EXE "" CACHE FILEPATH "Path to lld executable for the target \ architecture for use in BOLT tests") set(BOLT_INCLUDE_TESTS OFF) if (LLVM_INCLUDE_TESTS) set(BOLT_CLANG_PRESENT OFF) set(BOLT_LLD_PRESENT OFF) if ("clang" IN_LIST LLVM_ENABLE_PROJECTS AND BOLT_CLANG_EXE) message(WARNING "BOLT_CLANG_EXE is set and clang project is enabled. \ BOLT_CLANG_EXE will be used for BOLT tests.") endif() if ("clang" IN_LIST LLVM_ENABLE_PROJECTS OR BOLT_CLANG_EXE) set(BOLT_CLANG_PRESENT ON) endif() if ("lld" IN_LIST LLVM_ENABLE_PROJECTS AND BOLT_LLD_EXE) message(WARNING "BOLT_LLD_EXE is set and lld project is enabled. \ BOLT_LLD_EXE will be used for BOLT tests.") endif() if ("lld" IN_LIST LLVM_ENABLE_PROJECTS OR BOLT_LLD_EXE) set(BOLT_LLD_PRESENT ON) endif() if (BOLT_CLANG_PRESENT AND BOLT_LLD_PRESENT) set(BOLT_INCLUDE_TESTS ON) else() message(WARNING "Not including BOLT tests since clang or lld is disabled. \ Add clang and lld to LLVM_ENABLE_PROJECTS or provide paths to clang \ and lld binaries in BOLT_CLANG_EXE and BOLT_LLD_EXE.") endif() endif() if (BOLT_ENABLE_RUNTIME) message(STATUS "Building BOLT runtime libraries for X86") set(extra_args "") if(CMAKE_SYSROOT) list(APPEND extra_args -DCMAKE_SYSROOT=${CMAKE_SYSROOT}) endif() include(ExternalProject) ExternalProject_Add(bolt_rt SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/runtime" STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-stamps BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins CMAKE_ARGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_BUILD_TYPE=Release -DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM} -DLLVM_LIBDIR_SUFFIX=${LLVM_LIBDIR_SUFFIX} -DLLVM_LIBRARY_DIR=${LLVM_LIBRARY_DIR} -DBOLT_BUILT_STANDALONE=${BOLT_BUILT_STANDALONE} ${extra_args} INSTALL_COMMAND "" BUILD_ALWAYS True ) install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins/cmake_install.cmake \)" COMPONENT bolt) add_llvm_install_targets(install-bolt_rt DEPENDS bolt_rt bolt COMPONENT bolt) set(LIBBOLT_RT_INSTR "${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins/lib/libbolt_rt_instr.a") set(LIBBOLT_RT_HUGIFY "${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins/lib/libbolt_rt_hugify.a") endif() find_program(GNU_LD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.bfd ld.bfd DOC "GNU ld") include(AddBOLT) option(BOLT_BUILD_TOOLS "Build the BOLT tools. If OFF, just generate build targets." ON) add_custom_target(bolt) set_target_properties(bolt PROPERTIES FOLDER "BOLT/Metatargets") add_llvm_install_targets(install-bolt DEPENDS bolt COMPONENT bolt) include_directories( ${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_BINARY_DIR}/include ) add_subdirectory(lib) add_subdirectory(tools) if (BOLT_INCLUDE_TESTS) if (EXISTS ${LLVM_THIRD_PARTY_DIR}/unittest/googletest/include/gtest/gtest.h) add_subdirectory(unittests) list(APPEND BOLT_TEST_DEPS BoltUnitTests) endif() add_subdirectory(test) endif() option(BOLT_INCLUDE_DOCS "Generate build targets for the BOLT docs." ${LLVM_INCLUDE_DOCS}) if (BOLT_INCLUDE_DOCS) add_subdirectory(docs) endif() configure_file(${CMAKE_CURRENT_SOURCE_DIR}/include/bolt/RuntimeLibs/RuntimeLibraryVariables.inc.in ${CMAKE_CURRENT_BINARY_DIR}/include/bolt/RuntimeLibs/RuntimeLibraryVariables.inc @ONLY)