forked from OSchip/llvm-project
239 lines
8.6 KiB
CMake
239 lines
8.6 KiB
CMake
# This file handles building LLVM runtime sub-projects.
|
|
cmake_minimum_required(VERSION 3.13.4)
|
|
project(Runtimes C CXX ASM)
|
|
|
|
set(LLVM_ALL_RUNTIMES "compiler-rt;libc;libcxx;libcxxabi;libunwind;openmp")
|
|
set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
|
|
"Semicolon-separated list of runtimes to build (${LLVM_ALL_RUNTIMES}), or \"all\".")
|
|
if(LLVM_ENABLE_RUNTIMES STREQUAL "all" )
|
|
set(LLVM_ENABLE_RUNTIMES ${LLVM_ALL_RUNTIMES})
|
|
endif()
|
|
|
|
foreach(proj ${LLVM_ENABLE_RUNTIMES})
|
|
set(proj_dir "${CMAKE_CURRENT_SOURCE_DIR}/../${proj}")
|
|
if(IS_DIRECTORY ${proj_dir} AND EXISTS ${proj_dir}/CMakeLists.txt)
|
|
list(APPEND runtimes ${proj_dir})
|
|
else()
|
|
message(FATAL_ERROR "LLVM_ENABLE_RUNTIMES requests ${proj} but directory not found: ${proj_dir}")
|
|
endif()
|
|
string(TOUPPER "${proj}" canon_name)
|
|
STRING(REGEX REPLACE "-" "_" canon_name ${canon_name})
|
|
set(LLVM_EXTERNAL_${canon_name}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../${proj}")
|
|
endforeach()
|
|
|
|
function(runtime_register_component name)
|
|
set_property(GLOBAL APPEND PROPERTY SUB_COMPONENTS ${name})
|
|
endfunction()
|
|
|
|
find_package(LLVM PATHS "${LLVM_BINARY_DIR}" NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
|
|
find_package(Clang PATHS "${LLVM_BINARY_DIR}" NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
|
|
|
|
# Add path for custom and the LLVM build's modules to the CMake module path.
|
|
list(INSERT CMAKE_MODULE_PATH 0
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/../llvm/cmake"
|
|
"${CMAKE_CURRENT_SOURCE_DIR}/../llvm/cmake/modules"
|
|
)
|
|
|
|
function(get_compiler_rt_path path)
|
|
foreach(entry ${runtimes})
|
|
get_filename_component(projName ${entry} NAME)
|
|
if("${projName}" MATCHES "compiler-rt")
|
|
set(${path} ${entry} PARENT_SCOPE)
|
|
return()
|
|
endif()
|
|
endforeach()
|
|
endfunction()
|
|
|
|
# Some of the runtimes will conditionally use the compiler-rt sanitizers
|
|
# to make this work smoothly we ensure that compiler-rt is added first in
|
|
# the list of sub-projects. This allows other sub-projects to have checks
|
|
# like `if(TARGET asan)` to enable building with asan.
|
|
get_compiler_rt_path(compiler_rt_path)
|
|
if(compiler_rt_path)
|
|
list(REMOVE_ITEM runtimes ${compiler_rt_path})
|
|
if(NOT DEFINED LLVM_BUILD_COMPILER_RT OR LLVM_BUILD_COMPILER_RT)
|
|
list(INSERT runtimes 0 ${compiler_rt_path})
|
|
endif()
|
|
endif()
|
|
|
|
# If building standalone by pointing CMake at this runtimes directory,
|
|
# LLVM_BINARY_DIR isn't set, find_package(LLVM) will fail and these
|
|
# intermediate paths are unset.
|
|
if (NOT LLVM_BINARY_DIR)
|
|
set(LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
|
|
endif()
|
|
if (NOT LLVM_FOUND)
|
|
set(LLVM_TOOLS_BINARY_DIR ${LLVM_BINARY_DIR}/bin)
|
|
set(LLVM_LIBRARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/lib)
|
|
endif()
|
|
|
|
# Setting these variables will allow the sub-build to put their outputs into
|
|
# the library and bin directories of the top-level build.
|
|
set(LLVM_LIBRARY_OUTPUT_INTDIR ${LLVM_LIBRARY_DIR})
|
|
set(LLVM_RUNTIME_OUTPUT_INTDIR ${LLVM_TOOLS_BINARY_DIR})
|
|
|
|
# This variable makes sure that e.g. llvm-lit is found.
|
|
set(LLVM_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../llvm)
|
|
set(LLVM_CMAKE_DIR ${LLVM_MAIN_SRC_DIR}/cmake/modules)
|
|
|
|
# This variable is used by individual runtimes to locate LLVM files.
|
|
set(LLVM_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../llvm)
|
|
|
|
if(APPLE)
|
|
set(LLVM_ENABLE_LIBCXX ON CACHE BOOL "")
|
|
endif()
|
|
|
|
include(CheckLibraryExists)
|
|
include(CheckCCompilerFlag)
|
|
include(CheckCXXCompilerFlag)
|
|
|
|
# Disable use of the installed C++ standard library when building runtimes.
|
|
# Check for -nostdlib++ first; if there's no C++ standard library yet,
|
|
# all check_cxx_compiler_flag commands will fail until we add -nostdlib++
|
|
# (or -nodefaultlibs).
|
|
check_c_compiler_flag(-nostdlib++ LLVM_RUNTIMES_SUPPORT_NOSTDLIBXX_FLAG)
|
|
if (LLVM_RUNTIMES_SUPPORT_NOSTDLIBXX_FLAG)
|
|
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -nostdlib++")
|
|
endif()
|
|
check_cxx_compiler_flag(-nostdinc++ LLVM_RUNTIMES_SUPPORT_NOSTDINCXX_FLAG)
|
|
if (LLVM_RUNTIMES_SUPPORT_NOSTDINCXX_FLAG)
|
|
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -nostdinc++")
|
|
endif()
|
|
|
|
# Avoid checking whether the compiler is working.
|
|
set(LLVM_COMPILER_CHECKED ON)
|
|
|
|
# Handle common options used by all runtimes.
|
|
include(AddLLVM)
|
|
include(HandleLLVMOptions)
|
|
|
|
find_package(Python3 REQUIRED COMPONENTS Interpreter)
|
|
|
|
if (NOT LLVM_DEFAULT_TARGET_TRIPLE)
|
|
include(GetHostTriple)
|
|
get_host_triple(LLVM_DEFAULT_TARGET_TRIPLE)
|
|
endif()
|
|
|
|
option(LLVM_INCLUDE_TESTS "Generate build targets for the runtimes unit tests." ON)
|
|
option(LLVM_INCLUDE_DOCS "Generate build targets for the runtimes documentation." ON)
|
|
option(LLVM_ENABLE_SPHINX "Use Sphinx to generate the runtimes documentation." OFF)
|
|
|
|
# Use libtool instead of ar if you are both on an Apple host, and targeting Apple.
|
|
if(CMAKE_HOST_APPLE AND APPLE)
|
|
include(UseLibtool)
|
|
endif()
|
|
|
|
# This can be used to detect whether we're in the runtimes build.
|
|
set(LLVM_RUNTIMES_BUILD ON)
|
|
|
|
foreach(entry ${runtimes})
|
|
get_filename_component(projName ${entry} NAME)
|
|
|
|
# TODO: Clean this up as part of an interface standardization
|
|
string(REPLACE "-" "_" canon_name ${projName})
|
|
string(TOUPPER ${canon_name} canon_name)
|
|
|
|
# TODO: compiler-rt has to use standalone build for now. We tried to remove
|
|
# this in D57992 but this broke the build because compiler-rt assumes that
|
|
# LLVM and Clang are configured in the same build to set up dependencies. We
|
|
# should clean up the compiler-rt build and remove this eventually.
|
|
if ("${canon_name}" STREQUAL "COMPILER_RT")
|
|
set(${canon_name}_STANDALONE_BUILD ON)
|
|
endif()
|
|
|
|
if(LLVM_RUNTIMES_LIBDIR_SUBDIR)
|
|
set(${canon_name}_LIBDIR_SUBDIR "${LLVM_RUNTIMES_LIBDIR_SUBDIR}" CACHE STRING "" FORCE)
|
|
endif()
|
|
|
|
# Setting a variable to let sub-projects detect which other projects
|
|
# will be included under here.
|
|
set(HAVE_${canon_name} ON)
|
|
endforeach()
|
|
|
|
if(LLVM_INCLUDE_TESTS)
|
|
set(LIT_ARGS_DEFAULT "-sv --show-xfail --show-unsupported")
|
|
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")
|
|
endif()
|
|
|
|
# We do this in two loops so that HAVE_* is set for each runtime before the
|
|
# other runtimes are added.
|
|
foreach(entry ${runtimes})
|
|
get_filename_component(projName ${entry} NAME)
|
|
|
|
# Between each sub-project we want to cache and clear the LIT properties
|
|
set_property(GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
|
|
set_property(GLOBAL PROPERTY LLVM_LIT_PARAMS)
|
|
set_property(GLOBAL PROPERTY LLVM_LIT_DEPENDS)
|
|
set_property(GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
|
|
|
|
add_subdirectory(${entry} ${projName})
|
|
|
|
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)
|
|
|
|
list(APPEND RUNTIMES_LIT_TESTSUITES ${LLVM_LIT_TESTSUITES})
|
|
list(APPEND RUNTIMES_LIT_PARAMS ${LLVM_LIT_PARAMS})
|
|
list(APPEND RUNTIMES_LIT_DEPENDS ${LLVM_LIT_DEPENDS})
|
|
list(APPEND RUNTIMES_LIT_EXTRA_ARGS ${LLVM_LIT_EXTRA_ARGS})
|
|
endforeach()
|
|
|
|
if(LLVM_INCLUDE_TESTS)
|
|
# Add a global check rule now that all subdirectories have been traversed
|
|
# and we know the total set of lit testsuites.
|
|
add_lit_target(check-runtimes
|
|
"Running all regression tests"
|
|
${RUNTIMES_LIT_TESTSUITES}
|
|
PARAMS ${RUNTIMES_LIT_PARAMS}
|
|
DEPENDS ${RUNTIMES_LIT_DEPENDS}
|
|
ARGS ${RUNTIMES_LIT_EXTRA_ARGS}
|
|
)
|
|
add_custom_target(runtimes-test-depends DEPENDS ${RUNTIMES_LIT_DEPENDS})
|
|
|
|
if (NOT HAVE_LLVM_LIT)
|
|
# If built by manually invoking cmake on this directory, we don't have
|
|
# llvm-lit. If invoked via llvm/runtimes, the toplevel llvm cmake
|
|
# invocation already generated the llvm-lit script.
|
|
add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit
|
|
${CMAKE_CURRENT_BINARY_DIR}/llvm-lit)
|
|
endif()
|
|
endif()
|
|
|
|
get_property(SUB_COMPONENTS GLOBAL PROPERTY SUB_COMPONENTS)
|
|
if(SUB_COMPONENTS)
|
|
list(REMOVE_DUPLICATES SUB_COMPONENTS)
|
|
foreach(component ${SUB_COMPONENTS})
|
|
if(NOT TARGET ${component})
|
|
message(SEND_ERROR "Missing target for runtime component ${component}!")
|
|
continue()
|
|
endif()
|
|
|
|
if(TARGET check-${component})
|
|
list(APPEND SUB_CHECK_TARGETS check-${component})
|
|
endif()
|
|
|
|
if(TARGET install-${component})
|
|
list(APPEND SUB_INSTALL_TARGETS install-${component})
|
|
endif()
|
|
if(TARGET install-${component}-stripped)
|
|
list(APPEND SUB_INSTALL_TARGETS install-${component}-stripped)
|
|
endif()
|
|
endforeach()
|
|
|
|
if(LLVM_RUNTIMES_TARGET)
|
|
configure_file(
|
|
${CMAKE_CURRENT_SOURCE_DIR}/Components.cmake.in
|
|
${LLVM_BINARY_DIR}/runtimes/${LLVM_RUNTIMES_TARGET}/Components.cmake)
|
|
else()
|
|
configure_file(
|
|
${CMAKE_CURRENT_SOURCE_DIR}/Components.cmake.in
|
|
${LLVM_BINARY_DIR}/runtimes/Components.cmake)
|
|
endif()
|
|
endif()
|