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llvm-project/clang/CMakeLists.txt

720 lines
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CMake
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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 ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
if(NOT LLVM_UTILS_PROVIDED)
add_subdirectory(${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")
set (LIBXML2_FOUND 0)
find_package(LibXml2 2.5.3 QUIET)
if (LIBXML2_FOUND)
set(CLANG_HAVE_LIBXML 1)
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(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_OPENMP_RUNTIME "libomp" CACHE STRING
"Default OpenMP runtime used by -fopenmp.")
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 ${LLVM_VERSION_PATCH})
endif()
# Unlike PACKAGE_VERSION, CLANG_VERSION does not include LLVM_VERSION_SUFFIX.
set(CLANG_VERSION "${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}.${CLANG_VERSION_MINOR}" CACHE STRING
"Version number that will be placed into the clang executable, in the form XX.YY")
set(LIBCLANG_LIBRARY_VERSION
"${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}" CACHE STRING
"Version number that will be placed into the libclang library , in the form XX.YY")
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})
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()
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 ${NEXT_CLANG_STAGE} build and stamp directories"
)
if(CMAKE_VERBOSE_MAKEFILE)
set(verbose -DCMAKE_VERBOSE_MAKEFILE=On)
endif()
set(_BOOTSTRAP_DEFAULT_PASSTHROUGH
PACKAGE_VERSION
PACKAGE_VENDOR
LLVM_VERSION_MAJOR
LLVM_VERSION_MINOR
LLVM_VERSION_PATCH
CLANG_VERSION_MAJOR
CLANG_VERSION_MINOR
CLANG_VERSION_PATCHLEVEL
LLVM_VERSION_SUFFIX
LLVM_BINUTILS_INCDIR
CLANG_REPOSITORY_STRING
CMAKE_MAKE_PROGRAM
CMAKE_OSX_ARCHITECTURES)
# We don't need to depend on compiler-rt if we're building instrumented
# because the next stage will use the same compiler used to build this stage.
if(TARGET compiler-rt AND NOT LLVM_BUILD_INSTRUMENTED)
add_dependencies(clang-bootstrap-deps compiler-rt)
endif()
set(C_COMPILER "clang")
set(CXX_COMPILER "clang++")
if(WIN32)
set(C_COMPILER "clang-cl.exe")
set(CXX_COMPILER "clang-cl.exe")
endif()
set(COMPILER_OPTIONS
-DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${CXX_COMPILER}
-DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}
-DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER})
if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED)
add_dependencies(clang-bootstrap-deps llvm-profdata)
set(PGO_OPT -DLLVM_PROFDATA=${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} ${PGO_OPT}
INSTALL_COMMAND ""
STEP_TARGETS configure build
USES_TERMINAL_CONFIGURE 1
USES_TERMINAL_BUILD 1
USES_TERMINAL_INSTALL 1
)
# exclude really-install from main target
set_target_properties(${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)
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