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author | Mark Doffman <mark.doffman@codethink.co.uk> | 2014-12-30 16:44:59 +0000 |
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committer | Mark Doffman <mark.doffman@codethink.co.uk> | 2014-12-30 16:44:59 +0000 |
commit | 0dc6ab13366dae47f4b4ab1670d6b4b3859624c2 (patch) | |
tree | d6544d5034de2b6de0232547fd3526995e37d635 | |
parent | 7118740b5c5c8daeb09db7b7e4302d50853573ac (diff) | |
download | flang-0dc6ab13366dae47f4b4ab1670d6b4b3859624c2.tar.gz |
Add LLVM out of tree config using llvm-config.
Change the out-of-tree build configuration so that
it uses the llvm-config command.
-rw-r--r-- | CMakeLists.txt | 166 |
1 files changed, 120 insertions, 46 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index da37c83b5f..5dae9b201d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,76 +1,150 @@ +cmake_minimum_required(VERSION 2.8) + # If we are not building as a part of LLVM, build Flang as an # standalone project, using LLVM as an external library: if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR ) project(Flang) - cmake_minimum_required(VERSION 2.8) - - set(FLANG_PATH_TO_LLVM_SOURCE "" CACHE PATH - "Path to LLVM source code. Not necessary if using an installed LLVM.") - set(FLANG_PATH_TO_LLVM_BUILD "" CACHE PATH - "Path to the directory where LLVM was built or installed.") - if( FLANG_PATH_TO_LLVM_SOURCE ) - if( NOT EXISTS "${FLANG_PATH_TO_LLVM_SOURCE}/cmake/config-ix.cmake" ) - message(FATAL_ERROR "Please set FLANG_PATH_TO_LLVM_SOURCE to the root directory of LLVM source code.") + # Rely on llvm-config. + set(CONFIG_OUTPUT) + find_program(LLVM_CONFIG "llvm-config") + if(LLVM_CONFIG) + message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}") + set(CONFIG_COMMAND ${LLVM_CONFIG} + "--assertion-mode" + "--bindir" + "--libdir" + "--includedir" + "--prefix" + "--src-root") + execute_process( + COMMAND ${CONFIG_COMMAND} + RESULT_VARIABLE HAD_ERROR + OUTPUT_VARIABLE CONFIG_OUTPUT + ) + if(NOT HAD_ERROR) + string(REGEX REPLACE + "[ \t]*[\r\n]+[ \t]*" ";" + CONFIG_OUTPUT ${CONFIG_OUTPUT}) else() - get_filename_component(LLVM_MAIN_SRC_DIR ${FLANG_PATH_TO_LLVM_SOURCE} - ABSOLUTE) - list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules") + string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}") + message(STATUS "${CONFIG_COMMAND_STR}") + message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}") endif() + else() + message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}") endif() - if( NOT EXISTS "${FLANG_PATH_TO_LLVM_BUILD}/bin/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) - # Looking for bin/Debug/llvm-tblgen is a complete hack. How can we get - # around this? - if( NOT EXISTS "${FLANG_PATH_TO_LLVM_BUILD}/bin/Debug/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) - message(FATAL_ERROR "Please set FLANG_PATH_TO_LLVM_BUILD to a directory containing a LLVM build.") - endif() + list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS) + list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR) + list(GET CONFIG_OUTPUT 2 LIBRARY_DIR) + list(GET CONFIG_OUTPUT 3 INCLUDE_DIR) + list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT) + list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR) + + if(NOT MSVC_IDE) + set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS} + CACHE BOOL "Enable assertions") + # Assertions should follow llvm-config's. + mark_as_advanced(LLVM_ENABLE_ASSERTIONS) endif() - list(APPEND CMAKE_MODULE_PATH "${FLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake") + set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin") + set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib") + set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include") + set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree") + set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") - get_filename_component(PATH_TO_LLVM_BUILD ${FLANG_PATH_TO_LLVM_BUILD} - ABSOLUTE) + find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR} + NO_DEFAULT_PATH) + + set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake") + set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake") + if(EXISTS ${LLVMCONFIG_FILE}) + list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") + include(${LLVMCONFIG_FILE}) + else() + message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}") + endif() + + # 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) + + option(LLVM_INSTALL_TOOLCHAIN_ONLY + "Only include toolchain files in the 'install' target." OFF) + + option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN + "Set to ON to force using an old, unsupported host toolchain." OFF) include(AddLLVM) include(TableGen) - include("${FLANG_PATH_TO_LLVM_BUILD}/share/llvm/cmake/LLVMConfig.cmake") include(HandleLLVMOptions) set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}") - set(LLVM_MAIN_INCLUDE_DIR "${LLVM_MAIN_SRC_DIR}/include") - set(LLVM_BINARY_DIR ${CMAKE_BINARY_DIR}) - - set(CMAKE_INCLUDE_CURRENT_DIR ON) - include_directories("${PATH_TO_LLVM_BUILD}/include" "${LLVM_MAIN_INCLUDE_DIR}") - link_directories("${PATH_TO_LLVM_BUILD}/lib") - - if( EXISTS "${FLANG_PATH_TO_LLVM_BUILD}/bin/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}" ) - set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}") - else() - # FIXME: This is an utter hack. - set(LLVM_TABLEGEN_EXE "${PATH_TO_LLVM_BUILD}/bin/Debug/llvm-tblgen${CMAKE_EXECUTABLE_SUFFIX}") + if (NOT DEFINED LLVM_INCLUDE_TESTS) + set(LLVM_INCLUDE_TESTS ON) endif() - # Define the default arguments to use with 'lit', and an option for the user - # to override. - 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") + include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}") + link_directories("${LLVM_LIBRARY_DIR}") set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin ) set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib ) set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib ) - set( FLANG_BUILT_STANDALONE 1 ) + if(LLVM_INCLUDE_TESTS) + # Check prebuilt llvm/utils. + if(EXISTS ${LLVM_TOOLS_BINARY_DIR}/FileCheck${CMAKE_EXECUTABLE_SUFFIX} + AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/count${CMAKE_EXECUTABLE_SUFFIX} + AND EXISTS ${LLVM_TOOLS_BINARY_DIR}/not${CMAKE_EXECUTABLE_SUFFIX}) + set(LLVM_UTILS_PROVIDED ON) + endif() + + if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) + set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) + if(NOT LLVM_UTILS_PROVIDED) + add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/FileCheck utils/FileCheck) + add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/count utils/count) + add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/not utils/not) + set(LLVM_UTILS_PROVIDED ON) + set(CLANG_TEST_DEPS FileCheck count not) + endif() + set(UNITTEST_DIR ${LLVM_MAIN_SRC_DIR}/utils/unittest) + if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h + AND NOT EXISTS ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX} + AND EXISTS ${UNITTEST_DIR}/CMakeLists.txt) + add_subdirectory(${UNITTEST_DIR} utils/unittest) + endif() + else() + # Seek installed Lit. + find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit + DOC "Path to lit.py") + endif() - find_package(LibXml2) - if (LIBXML2_FOUND) - set(FLANG_HAVE_LIBXML 1) - endif () + if(LLVM_LIT) + # Define the default arguments to use with 'lit', and an option for the user + # to override. + set(LIT_ARGS_DEFAULT "-sv") + if (MSVC OR XCODE) + set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar") + endif() + set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit") + + # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools. + if( WIN32 AND NOT CYGWIN ) + set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools") + endif() + else() + set(LLVM_INCLUDE_TESTS OFF) + endif() + endif() + + set( FLANG_BUILT_STANDALONE 1 ) + set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}") +else() + set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}") endif() set(FLANG_RESOURCE_DIR "" CACHE STRING |