llvm-project/clang/CMakeLists.txt

760 lines
27 KiB
CMake
Raw Normal View History

cmake_minimum_required(VERSION 3.4.3)
# If we are not building as a part of LLVM, build Clang as an
# standalone project, using LLVM as an external library:
if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
project(Clang)
# 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"
"--cmakedir")
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 ${CONFIG_OUTPUT})
else()
string(REPLACE ";" " " CONFIG_COMMAND_STR "${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()
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)
list(GET CONFIG_OUTPUT 6 LLVM_CONFIG_CMAKE_PATH)
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()
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")
# Normalize LLVM_CMAKE_PATH. --cmakedir might contain backslashes.
# CMake assumes slashes as PATH.
file(TO_CMAKE_PATH ${LLVM_CONFIG_CMAKE_PATH} LLVM_CMAKE_PATH)
find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}
NO_DEFAULT_PATH)
set(LLVMCONFIG_FILE "${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${LLVM_LIBDIR_SUFFIX})
if(WIN32 OR CYGWIN)
# DLL platform -- put DLLs into bin.
set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
else()
set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
endif()
option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
option(LLVM_INSTALL_TOOLCHAIN_ONLY
"Only include toolchain files in the 'install' target." OFF)
option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
"Set to ON to force using an old, unsupported host toolchain." OFF)
option(CLANG_ENABLE_BOOTSTRAP "Generate the clang bootstrap target" OFF)
include(AddLLVM)
include(TableGen)
include(HandleLLVMOptions)
include(VersionFromVCS)
set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
if (NOT DEFINED LLVM_INCLUDE_TESTS)
set(LLVM_INCLUDE_TESTS ON)
endif()
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 ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
if(LLVM_INCLUDE_TESTS)
set(Python_ADDITIONAL_VERSIONS 2.7)
include(FindPythonInterp)
if(NOT PYTHONINTERP_FOUND)
message(FATAL_ERROR
"Unable to find Python interpreter, required for builds and testing.
Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
endif()
if( ${PYTHON_VERSION_STRING} VERSION_LESS 2.7 )
message(FATAL_ERROR "Python 2.7 or newer is required")
endif()
# 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)
# Note: path not really used, except for checking if lit was found
set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/llvm-lit)
add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit utils/llvm-lit)
endif()
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
NAMES llvm-lit lit.py lit
PATHS "${LLVM_MAIN_SRC_DIR}/utils/lit"
DOC "Path to lit.py")
endif()
if(LLVM_LIT)
# Define the default arguments to use with 'lit', and an option for the user
# to override.
set(LIT_ARGS_DEFAULT "-sv")
if (MSVC OR XCODE)
set(LIT_ARGS_DEFAULT "${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( CLANG_BUILT_STANDALONE 1 )
set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
else()
set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
endif()
# Make sure that our source directory is on the current cmake module path so that
# we can include cmake files from this directory.
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
# Don't look for libxml if we're using MSan, since uninstrumented third party
# code may call MSan interceptors like strlen, leading to false positives.
if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
set (LIBXML2_FOUND 0)
find_package(LibXml2 2.5.3 QUIET)
if (LIBXML2_FOUND)
set(CLANG_HAVE_LIBXML 1)
endif()
endif()
include(CheckIncludeFile)
check_include_file(sys/resource.h CLANG_HAVE_RLIMITS)
set(CLANG_RESOURCE_DIR "" CACHE STRING
"Relative directory from the Clang binary to its resource files.")
set(C_INCLUDE_DIRS "" CACHE STRING
"Colon separated list of directories clang will search for headers.")
set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
set(DEFAULT_SYSROOT "" CACHE PATH
"Default <path> to all compiler invocations for --sysroot=<path>." )
set(ENABLE_LINKER_BUILD_ID OFF CACHE BOOL "pass --build-id to ld")
set(ENABLE_X86_RELAX_RELOCATIONS OFF CACHE BOOL
"enable x86 relax relocations by default")
set(ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER FALSE CACHE BOOL
"Enable the experimental new pass manager by default.")
# TODO: verify the values against LangStandards.def?
set(CLANG_DEFAULT_STD_C "" CACHE STRING
"Default standard to use for C/ObjC code (IDENT from LangStandards.def, empty for platform default)")
set(CLANG_DEFAULT_STD_CXX "" CACHE STRING
"Default standard to use for C++/ObjC++ code (IDENT from LangStandards.def, empty for platform default)")
set(CLANG_DEFAULT_LINKER "" CACHE STRING
"Default linker to use (linker name or absolute path, empty for platform default)")
set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
"Default C++ stdlib to use (\"libstdc++\" or \"libc++\", empty for platform default")
if (NOT(CLANG_DEFAULT_CXX_STDLIB STREQUAL "" OR
CLANG_DEFAULT_CXX_STDLIB STREQUAL "libstdc++" OR
CLANG_DEFAULT_CXX_STDLIB STREQUAL "libc++"))
message(WARNING "Resetting default C++ stdlib to use platform default")
set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
"Default C++ stdlib to use (\"libstdc++\" or \"libc++\", empty for platform default" FORCE)
endif()
set(CLANG_DEFAULT_RTLIB "" CACHE STRING
"Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)")
if (NOT(CLANG_DEFAULT_RTLIB STREQUAL "" OR
CLANG_DEFAULT_RTLIB STREQUAL "libgcc" OR
CLANG_DEFAULT_RTLIB STREQUAL "compiler-rt"))
message(WARNING "Resetting default rtlib to use platform default")
set(CLANG_DEFAULT_RTLIB "" CACHE STRING
"Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)" FORCE)
endif()
set(CLANG_DEFAULT_OBJCOPY "objcopy" CACHE STRING
"Default objcopy executable to use.")
set(CLANG_DEFAULT_OPENMP_RUNTIME "libomp" CACHE STRING
"Default OpenMP runtime used by -fopenmp.")
# OpenMP offloading requires at least sm_35 because we use shuffle instructions
# to generate efficient code for reductions and the atomicMax instruction on
# 64-bit integers in the implementation of conditional lastprivate.
set(CLANG_OPENMP_NVPTX_DEFAULT_ARCH "sm_35" CACHE STRING
"Default architecture for OpenMP offloading to Nvidia GPUs.")
string(REGEX MATCH "^sm_([0-9]+)$" MATCHED_ARCH "${CLANG_OPENMP_NVPTX_DEFAULT_ARCH}")
if (NOT DEFINED MATCHED_ARCH OR "${CMAKE_MATCH_1}" LESS 35)
message(WARNING "Resetting default architecture for OpenMP offloading to Nvidia GPUs to sm_35")
set(CLANG_OPENMP_NVPTX_DEFAULT_ARCH "sm_35" CACHE STRING
"Default architecture for OpenMP offloading to Nvidia GPUs." FORCE)
endif()
set(CLANG_VENDOR ${PACKAGE_VENDOR} CACHE STRING
"Vendor-specific text for showing with version information.")
if( CLANG_VENDOR )
add_definitions( -DCLANG_VENDOR="${CLANG_VENDOR} " )
endif()
set(CLANG_REPOSITORY_STRING "" CACHE STRING
"Vendor-specific text for showing the repository the source is taken from.")
if(CLANG_REPOSITORY_STRING)
add_definitions(-DCLANG_REPOSITORY_STRING="${CLANG_REPOSITORY_STRING}")
endif()
set(CLANG_VENDOR_UTI "org.llvm.clang" CACHE STRING
"Vendor-specific uti.")
# The libdir suffix must exactly match whatever LLVM's configuration used.
set(CLANG_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}")
set(CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(CLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
message(FATAL_ERROR "In-source builds are not allowed. CMake would overwrite "
"the makefiles distributed with LLVM. Please create a directory and run cmake "
"from there, passing the path to this source directory as the last argument. "
"This process created the file `CMakeCache.txt' and the directory "
"`CMakeFiles'. Please delete them.")
endif()
if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
file(GLOB_RECURSE
tablegenned_files_on_include_dir
"${CLANG_SOURCE_DIR}/include/clang/*.inc")
if( tablegenned_files_on_include_dir )
message(FATAL_ERROR "Apparently there is a previous in-source build, "
"probably as the result of running `configure' and `make' on "
"${CLANG_SOURCE_DIR}. This may cause problems. The suspicious files are:\n"
"${tablegenned_files_on_include_dir}\nPlease clean the source directory.")
endif()
endif()
# If CLANG_VERSION_* is specified, use it, if not use LLVM_VERSION_*.
if(NOT DEFINED CLANG_VERSION_MAJOR)
set(CLANG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
endif()
if(NOT DEFINED CLANG_VERSION_MINOR)
set(CLANG_VERSION_MINOR ${LLVM_VERSION_MINOR})
endif()
if(NOT DEFINED CLANG_VERSION_PATCHLEVEL)
set(CLANG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
endif()
Simplify Clang's version number configuration in CMake. Currently, the Clang version is computed as follows: 1. LLVM defines major, minor, and patch versions, all statically set. Today, these are 4, 0, and 0, respectively. 2. The static version numbers are combined into PACKAGE_VERSION along with a suffix, so the result today looks like "4.0.0svn". 3. Clang extracts CLANG_VERSION from PACKAGE_VERSION using a regexp. The regexp allows the patch level to omitted, and drops any non-digit trailing values. Today, this result looks like "4.0.0". 4. CLANG_VERSION is then split further into CLANG_VERSION_MAJOR and CLANG_VERSION_MINOR. Today, these resolve to 4 and 0, respectively. 5. If CLANG_VERSION matches a regexp with three version components, then CLANG_VERSION_PATCHLEVEL is extracted and the CLANG_HAS_VERSION_PATCHLEVEL variable is set to 1. Today, these values are 0 and 1, respectively. 6. The CLANG_VERSION_* variables (and CLANG_HAS_VERSION_PATCHLEVEL) are configured into [llvm/tools/clang/]include/clang/Basic/Version.inc verbatim by CMake. 7. In [llvm/tools/clang/]include/clang/Basic/Version.h, macros are defined conditionally, based on CLANG_HAS_VERSION_PATCHLEVEL, to compute CLANG_VERSION_STRING as either a two- or three-level version number. Today, this value is "4.0.0", because despite the patchlevel being 0, it was matched by regexp and is thus "HAS"ed by the preprocessor. This string is then used wherever Clang's "version" is needed [*]. [*] Including, notably, by compiler-rt, for computing its installation path. This change collapses steps 2-5 by defaulting Clang to use LLVM's (non-string) version components for the Clang version (see [*] for why not PACKAGE_VERSION), and collapses steps 6 and 7 by simply writing CLANG_VERSION_STRING into Version.inc. The Clang version today always uses the patchlevel form, so the collapsed Version.inc does not have logic for a version without a patch level. Historically speaking, this technique began with the VER file in r82085 (which survives in the form of the regexp in #3). The major, minor, and patchlevel versions were introduced by r106863 (which remains in #4-6). The VER file itself was deleted in favor of the LLVM version number in r106914. On the LLVM side, the individual LLVM_VERSION_MAJOR, LLVM_VERSION_MINOR, and PACKAGE_VERSION weren't introduced for nearly two more years, until r150405. llvm-svn: 281666
2016-09-16 06:12:26 +08:00
# Unlike PACKAGE_VERSION, CLANG_VERSION does not include LLVM_VERSION_SUFFIX.
set(CLANG_VERSION "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}.${CLANG_VERSION_PATCHLEVEL}")
message(STATUS "Clang version: ${CLANG_VERSION}")
# Configure the Version.inc file.
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/include/clang/Basic/Version.inc.in
${CMAKE_CURRENT_BINARY_DIR}/include/clang/Basic/Version.inc)
# Add appropriate flags for GCC
if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual")
if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
endif ()
# Enable -pedantic for Clang even if it's not enabled for LLVM.
if (NOT LLVM_ENABLE_PEDANTIC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wno-long-long")
endif ()
check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
endif()
endif ()
# Determine HOST_LINK_VERSION on Darwin.
set(HOST_LINK_VERSION)
if (APPLE)
set(LD_V_OUTPUT)
execute_process(
COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE LD_V_OUTPUT
)
if (NOT HAD_ERROR)
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
endif()
else()
message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
endif()
endif()
include(CMakeParseArguments)
include(AddClang)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
include_directories(BEFORE
${CMAKE_CURRENT_BINARY_DIR}/include
${CMAKE_CURRENT_SOURCE_DIR}/include
)
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
install(DIRECTORY include/clang include/clang-c
DESTINATION include
FILES_MATCHING
PATTERN "*.def"
PATTERN "*.h"
PATTERN "config.h" EXCLUDE
PATTERN ".svn" EXCLUDE
)
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
DESTINATION include
FILES_MATCHING
PATTERN "CMakeFiles" EXCLUDE
PATTERN "*.inc"
PATTERN "*.h"
)
install(PROGRAMS utils/bash-autocomplete.sh
DESTINATION share/clang
)
endif()
add_definitions( -D_GNU_SOURCE )
option(CLANG_BUILD_TOOLS
"Build the Clang tools. If OFF, just generate build targets." ON)
option(CLANG_ENABLE_ARCMT "Build ARCMT." ON)
option(CLANG_ENABLE_STATIC_ANALYZER "Build static analyzer." ON)
option(CLANG_ANALYZER_BUILD_Z3
"Build the static analyzer with the Z3 constraint manager." OFF)
option(CLANG_ENABLE_PROTO_FUZZER "Build Clang protobuf fuzzer." OFF)
if(NOT CLANG_ENABLE_STATIC_ANALYZER AND (CLANG_ENABLE_ARCMT OR CLANG_ANALYZER_BUILD_Z3))
message(FATAL_ERROR "Cannot disable static analyzer while enabling ARCMT or Z3")
endif()
if(CLANG_ANALYZER_BUILD_Z3)
find_package(Z3 4.5)
if(Z3_FOUND)
set(CLANG_ANALYZER_WITH_Z3 1)
else()
message(FATAL_ERROR "Cannot find Z3 header file or shared library")
endif()
endif()
if(CLANG_ENABLE_ARCMT)
set(CLANG_ENABLE_OBJC_REWRITER ON)
endif()
# Clang version information
set(CLANG_EXECUTABLE_VERSION
"${CLANG_VERSION_MAJOR}" CACHE STRING
"Major version number that will be appended to the clang executable name")
set(LIBCLANG_LIBRARY_VERSION
"${CLANG_VERSION_MAJOR}" CACHE STRING
"Major version number that will be appended to the libclang library")
mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
option(CLANG_INCLUDE_TESTS
"Generate build targets for the Clang unit tests."
${LLVM_INCLUDE_TESTS})
add_subdirectory(utils/TableGen)
add_subdirectory(include)
# All targets below may depend on all tablegen'd files.
get_property(CLANG_TABLEGEN_TARGETS GLOBAL PROPERTY CLANG_TABLEGEN_TARGETS)
add_custom_target(clang-tablegen-targets DEPENDS ${CLANG_TABLEGEN_TARGETS})
set_target_properties(clang-tablegen-targets PROPERTIES FOLDER "Misc")
list(APPEND LLVM_COMMON_DEPENDS clang-tablegen-targets)
# Force target to be built as soon as possible. Clang modules builds depend
# header-wise on it as they ship all headers from the umbrella folders. Building
# an entire module might include header, which depends on intrinsics_gen.
if(LLVM_ENABLE_MODULES AND NOT CLANG_BUILT_STANDALONE)
list(APPEND LLVM_COMMON_DEPENDS intrinsics_gen)
endif()
add_subdirectory(lib)
add_subdirectory(tools)
add_subdirectory(runtime)
option(CLANG_BUILD_EXAMPLES "Build CLANG example programs by default." OFF)
add_subdirectory(examples)
if(APPLE)
# this line is needed as a cleanup to ensure that any CMakeCaches with the old
# default value get updated to the new default.
if(CLANG_ORDER_FILE STREQUAL "")
unset(CLANG_ORDER_FILE CACHE)
unset(CLANG_ORDER_FILE)
endif()
set(CLANG_ORDER_FILE ${CMAKE_CURRENT_BINARY_DIR}/clang.order CACHE FILEPATH
"Order file to use when compiling clang in order to improve startup time (Darwin Only - requires ld64).")
if(NOT EXISTS ${CLANG_ORDER_FILE})
string(FIND "${CLANG_ORDER_FILE}" "${CMAKE_CURRENT_BINARY_DIR}" PATH_START)
if(PATH_START EQUAL 0)
file(WRITE ${CLANG_ORDER_FILE} "\n")
else()
message(FATAL_ERROR "Specified order file '${CLANG_ORDER_FILE}' does not exist.")
endif()
endif()
endif()
if( CLANG_INCLUDE_TESTS )
if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include/gtest/gtest.h)
add_subdirectory(unittests)
list(APPEND CLANG_TEST_DEPS ClangUnitTests)
list(APPEND CLANG_TEST_PARAMS
clang_unit_site_config=${CMAKE_CURRENT_BINARY_DIR}/test/Unit/lit.site.cfg
)
endif()
add_subdirectory(test)
if(CLANG_BUILT_STANDALONE)
# Add a global check rule now that all subdirectories have been traversed
# and we know the total set of lit testsuites.
get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
add_lit_target(check-all
"Running all regression tests"
${LLVM_LIT_TESTSUITES}
PARAMS ${LLVM_LIT_PARAMS}
DEPENDS ${LLVM_LIT_DEPENDS}
ARGS ${LLVM_LIT_EXTRA_ARGS}
)
endif()
add_subdirectory(utils/perf-training)
endif()
option(CLANG_INCLUDE_DOCS "Generate build targets for the Clang docs."
${LLVM_INCLUDE_DOCS})
if( CLANG_INCLUDE_DOCS )
add_subdirectory(docs)
endif()
add_subdirectory(cmake/modules)
if(CLANG_STAGE)
message(STATUS "Setting current clang stage to: ${CLANG_STAGE}")
endif()
if (CLANG_ENABLE_BOOTSTRAP)
include(ExternalProject)
add_custom_target(clang-bootstrap-deps DEPENDS clang)
if(NOT CLANG_STAGE)
set(CLANG_STAGE stage1)
endif()
string(REGEX MATCH "stage([0-9]*)" MATCHED_STAGE "${CLANG_STAGE}")
if(MATCHED_STAGE)
if(NOT LLVM_BUILD_INSTRUMENTED)
math(EXPR STAGE_NUM "${CMAKE_MATCH_1} + 1")
set(NEXT_CLANG_STAGE stage${STAGE_NUM})
else()
set(NEXT_CLANG_STAGE stage${CMAKE_MATCH_1})
endif()
else()
set(NEXT_CLANG_STAGE bootstrap)
endif()
if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
set(NEXT_CLANG_STAGE ${NEXT_CLANG_STAGE}-instrumented)
endif()
message(STATUS "Setting next clang stage to: ${NEXT_CLANG_STAGE}")
set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-stamps/)
set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-bins/)
if(BOOTSTRAP_LLVM_ENABLE_LLD)
add_dependencies(clang-bootstrap-deps lld)
endif()
# If the next stage is LTO we need to depend on LTO and possibly lld or LLVMgold
if(BOOTSTRAP_LLVM_ENABLE_LTO OR LLVM_ENABLE_LTO AND NOT LLVM_BUILD_INSTRUMENTED)
if(APPLE)
add_dependencies(clang-bootstrap-deps LTO)
# on Darwin we need to set DARWIN_LTO_LIBRARY so that -flto will work
# using the just-built compiler, and we need to override DYLD_LIBRARY_PATH
# so that the host object file tools will use the just-built libLTO.
# However if System Integrity Protection is enabled the DYLD variables
# will be scrubbed from the environment of any base system commands. This
# includes /bin/sh, which ninja uses when executing build commands. To
# work around the envar being filtered away we pass it in as a CMake
# variable, and have LLVM's CMake append the envar to the archiver calls.
set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib
-DDYLD_LIBRARY_PATH=${LLVM_LIBRARY_OUTPUT_INTDIR})
elseif(NOT WIN32)
add_dependencies(clang-bootstrap-deps llvm-ar llvm-ranlib)
if(NOT BOOTSTRAP_LLVM_ENABLE_LLD AND LLVM_BINUTILS_INCDIR)
add_dependencies(clang-bootstrap-deps LLVMgold)
endif()
set(LTO_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
set(LTO_RANLIB -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
endif()
endif()
if(CLANG_BOOTSTRAP_EXTRA_DEPS)
add_dependencies(clang-bootstrap-deps ${CLANG_BOOTSTRAP_EXTRA_DEPS})
endif()
add_custom_target(${NEXT_CLANG_STAGE}-clear
DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
)
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-cleared
DEPENDS clang-bootstrap-deps
COMMAND ${CMAKE_COMMAND} -E remove_directory ${BINARY_DIR}
COMMAND ${CMAKE_COMMAND} -E make_directory ${BINARY_DIR}
COMMAND ${CMAKE_COMMAND} -E remove_directory ${STAMP_DIR}
COMMAND ${CMAKE_COMMAND} -E make_directory ${STAMP_DIR}
COMMENT "Clobberring ${NEXT_CLANG_STAGE} build and stamp directories"
)
if(CMAKE_VERBOSE_MAKEFILE)
set(verbose -DCMAKE_VERBOSE_MAKEFILE=On)
endif()
set(_BOOTSTRAP_DEFAULT_PASSTHROUGH
PACKAGE_VERSION
PACKAGE_VENDOR
LLVM_VERSION_MAJOR
LLVM_VERSION_MINOR
LLVM_VERSION_PATCH
CLANG_VERSION_MAJOR
CLANG_VERSION_MINOR
CLANG_VERSION_PATCHLEVEL
LLVM_VERSION_SUFFIX
LLVM_BINUTILS_INCDIR
CLANG_REPOSITORY_STRING
CMAKE_MAKE_PROGRAM
CMAKE_OSX_ARCHITECTURES
LLVM_ENABLE_PROJECTS
LLVM_ENABLE_RUNTIMES)
# We don't need to depend on compiler-rt if we're building instrumented
# because the next stage will use the same compiler used to build this stage.
if(TARGET compiler-rt AND NOT LLVM_BUILD_INSTRUMENTED)
add_dependencies(clang-bootstrap-deps compiler-rt)
endif()
set(C_COMPILER "clang")
set(CXX_COMPILER "clang++")
if(WIN32)
set(C_COMPILER "clang-cl.exe")
set(CXX_COMPILER "clang-cl.exe")
endif()
set(COMPILER_OPTIONS
-DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${CXX_COMPILER}
-DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
-DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
-DCMAKE_ASM_COMPILER_ID=Clang)
if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
add_dependencies(clang-bootstrap-deps llvm-profdata)
set(PGO_OPT -DLLVM_PROFDATA=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-profdata)
endif()
if(LLVM_BUILD_INSTRUMENTED)
add_dependencies(clang-bootstrap-deps generate-profdata)
set(PGO_OPT -DLLVM_PROFDATA_FILE=${CMAKE_CURRENT_BINARY_DIR}/utils/perf-training/clang.profdata)
# Use the current tools for LTO instead of the instrumented ones
list(APPEND _BOOTSTRAP_DEFAULT_PASSTHROUGH
CMAKE_CXX_COMPILER
CMAKE_C_COMPILER
CMAKE_ASM_COMPILER
CMAKE_AR
CMAKE_RANLIB
DARWIN_LTO_LIBRARY
DYLD_LIBRARY_PATH)
set(COMPILER_OPTIONS)
set(LTO_LIBRARY)
set(LTO_AR)
set(LTO_RANLIB)
endif()
# Find all variables that start with BOOTSTRAP_ and populate a variable with
# them.
get_cmake_property(variableNames VARIABLES)
foreach(variableName ${variableNames})
if(variableName MATCHES "^BOOTSTRAP_")
string(SUBSTRING ${variableName} 10 -1 varName)
string(REPLACE ";" "|" value "${${variableName}}")
list(APPEND PASSTHROUGH_VARIABLES
-D${varName}=${value})
endif()
if(${variableName} AND variableName MATCHES "LLVM_EXTERNAL_.*_SOURCE_DIR")
list(APPEND PASSTHROUGH_VARIABLES
-D${variableName}=${${variableName}})
endif()
endforeach()
# Populate the passthrough variables
foreach(variableName ${CLANG_BOOTSTRAP_PASSTHROUGH} ${_BOOTSTRAP_DEFAULT_PASSTHROUGH})
if(DEFINED ${variableName})
if("${${variableName}}" STREQUAL "")
set(value "")
else()
string(REPLACE ";" "|" value "${${variableName}}")
endif()
list(APPEND PASSTHROUGH_VARIABLES
-D${variableName}=${value})
endif()
endforeach()
ExternalProject_Add(${NEXT_CLANG_STAGE}
DEPENDS clang-bootstrap-deps
PREFIX ${NEXT_CLANG_STAGE}
SOURCE_DIR ${CMAKE_SOURCE_DIR}
STAMP_DIR ${STAMP_DIR}
BINARY_DIR ${BINARY_DIR}
EXCLUDE_FROM_ALL 1
CMAKE_ARGS
# We shouldn't need to set this here, but INSTALL_DIR doesn't
# seem to work, so instead I'm passing this through
-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
${CLANG_BOOTSTRAP_CMAKE_ARGS}
${PASSTHROUGH_VARIABLES}
-DCLANG_STAGE=${NEXT_CLANG_STAGE}
${COMPILER_OPTIONS}
${LTO_LIBRARY} ${LTO_AR} ${LTO_RANLIB} ${verbose} ${PGO_OPT}
INSTALL_COMMAND ""
STEP_TARGETS configure build
USES_TERMINAL_CONFIGURE 1
USES_TERMINAL_BUILD 1
USES_TERMINAL_INSTALL 1
LIST_SEPARATOR |
)
# exclude really-install from main target
set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_really-install_EXCLUDE_FROM_MAIN On)
ExternalProject_Add_Step(${NEXT_CLANG_STAGE} really-install
COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target install
COMMENT "Performing install step for '${NEXT_CLANG_STAGE}'"
DEPENDEES build
USES_TERMINAL 1
)
ExternalProject_Add_StepTargets(${NEXT_CLANG_STAGE} really-install)
add_custom_target(${NEXT_CLANG_STAGE}-install DEPENDS ${NEXT_CLANG_STAGE}-really-install)
if(NOT CLANG_BOOTSTRAP_TARGETS)
set(CLANG_BOOTSTRAP_TARGETS check-llvm check-clang check-all)
endif()
foreach(target ${CLANG_BOOTSTRAP_TARGETS})
# exclude from main target
set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_${target}_EXCLUDE_FROM_MAIN On)
ExternalProject_Add_Step(${NEXT_CLANG_STAGE} ${target}
COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target ${target}
COMMENT "Performing ${target} for '${NEXT_CLANG_STAGE}'"
DEPENDEES configure
USES_TERMINAL 1
)
if(target MATCHES "^stage[0-9]*")
add_custom_target(${target} DEPENDS ${NEXT_CLANG_STAGE}-${target})
endif()
ExternalProject_Add_StepTargets(${NEXT_CLANG_STAGE} ${target})
endforeach()
endif()
if (LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION)
add_subdirectory(utils/ClangVisualizers)
endif()
configure_file(
${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
${CLANG_BINARY_DIR}/include/clang/Config/config.h)