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1# CrossWinToARMLinux.cmake2#3# Set up a CMakeCache for a cross Windows to ARM Linux toolchain build.4#5# This cache file can be used to build a cross toolchain to ARM Linux6# on Windows platform.7#8# NOTE: the build requires a development ARM Linux root filesystem to use9# proper target platform depended library and header files.10#11# The build generates a proper clang configuration file with stored12# --sysroot argument for specified target triple. Also it is possible13# to specify configuration path via CMake arguments, such as14# -DCLANG_CONFIG_FILE_USER_DIR=<full-path-to-clang-configs>15# and/or16# -DCLANG_CONFIG_FILE_SYSTEM_DIR=<full-path-to-clang-configs>17#18# See more details here: https://clang.llvm.org/docs/UsersManual.html#configuration-files19#20# Configure:21# cmake -G Ninja ^22# -DTOOLCHAIN_TARGET_TRIPLE=aarch64-unknown-linux-gnu ^23# -DTOOLCHAIN_TARGET_SYSROOTFS=<path-to-develop-arm-linux-root-fs> ^24# -DTOOLCHAIN_SHARED_LIBS=OFF ^ 25# -DCMAKE_INSTALL_PREFIX=../install ^26# -DCMAKE_CXX_FLAGS="-D__OPTIMIZE__" ^27# -DREMOTE_TEST_HOST="<hostname>" ^28# -DREMOTE_TEST_USER="<ssh_user_name>" ^29# -C<llvm_src_root>/llvm-project/clang/cmake/caches/CrossWinToARMLinux.cmake ^30# <llvm_src_root>/llvm-project/llvm31# Build:32# cmake --build . --target install33# Tests:34# cmake --build . --target check-llvm35# cmake --build . --target check-clang36# cmake --build . --target check-lld37# cmake --build . --target check-compiler-rt-<TOOLCHAIN_TARGET_TRIPLE>38# cmake --build . --target check-cxxabi-<TOOLCHAIN_TARGET_TRIPLE>39# cmake --build . --target check-unwind-<TOOLCHAIN_TARGET_TRIPLE>40# cmake --build . --target check-cxx-<TOOLCHAIN_TARGET_TRIPLE>41# (another way to execute the tests)42# python bin/llvm-lit.py -v --threads=32 runtimes/runtimes-<TOOLCHAIN_TARGET_TRIPLE>bins/libunwind/test 2>&1 | tee libunwind-tests.log43# python bin/llvm-lit.py -v --threads=32 runtimes/runtimes-<TOOLCHAIN_TARGET_TRIPLE>-bins/libcxxabi/test 2>&1 | tee libcxxabi-tests.log44# python bin/llvm-lit.py -v --threads=32 runtimes/runtimes-<TOOLCHAIN_TARGET_TRIPLE>-bins/libcxx/test 2>&1 | tee libcxx-tests.log45 46 47# LLVM_PROJECT_DIR is the path to the llvm-project directory.48# The right way to compute it would probably be to use "${CMAKE_SOURCE_DIR}/../",49# but CMAKE_SOURCE_DIR is set to the wrong value on earlier CMake versions50# that we still need to support (for instance, 3.10.2).51get_filename_component(LLVM_PROJECT_DIR52 "${CMAKE_CURRENT_LIST_DIR}/../../../"53 ABSOLUTE)54 55if (NOT DEFINED LLVM_ENABLE_ASSERTIONS)56 set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")57endif()58if (NOT DEFINED LLVM_ENABLE_PROJECTS)59 set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra;lld" CACHE STRING "")60endif()61if (NOT DEFINED LLVM_ENABLE_RUNTIMES)62 set(LLVM_ENABLE_RUNTIMES "compiler-rt;libunwind;libcxxabi;libcxx" CACHE STRING "")63endif()64 65if (NOT DEFINED TOOLCHAIN_TARGET_TRIPLE)66 set(TOOLCHAIN_TARGET_TRIPLE "aarch64-unknown-linux-gnu")67else()68 #NOTE: we must normalize specified target triple to a fully specified triple,69 # including the vendor part. It is necessary to synchronize the runtime library70 # installation path and operable target triple by Clang to get a correct runtime71 # path through `-print-runtime-dir` Clang option.72 string(REPLACE "-" ";" TOOLCHAIN_TARGET_TRIPLE "${TOOLCHAIN_TARGET_TRIPLE}")73 list(LENGTH TOOLCHAIN_TARGET_TRIPLE TOOLCHAIN_TARGET_TRIPLE_LEN)74 if (TOOLCHAIN_TARGET_TRIPLE_LEN LESS 3)75 message(FATAL_ERROR "invalid target triple")76 endif()77 # We suppose missed vendor's part.78 if (TOOLCHAIN_TARGET_TRIPLE_LEN LESS 4)79 list(INSERT TOOLCHAIN_TARGET_TRIPLE 1 "unknown")80 endif()81 string(REPLACE ";" "-" TOOLCHAIN_TARGET_TRIPLE "${TOOLCHAIN_TARGET_TRIPLE}")82endif()83 84message(STATUS "Toolchain target triple: ${TOOLCHAIN_TARGET_TRIPLE}")85 86if (DEFINED TOOLCHAIN_TARGET_SYSROOTFS)87 message(STATUS "Toolchain target sysroot: ${TOOLCHAIN_TARGET_SYSROOTFS}")88 # Store the --sysroot argument for the compiler-rt test flags.89 set(sysroot_flags --sysroot='${TOOLCHAIN_TARGET_SYSROOTFS}')90 # Generate the clang configuration file for the specified target triple91 # and store --sysroot in this file.92 file(WRITE "${CMAKE_BINARY_DIR}/bin/${TOOLCHAIN_TARGET_TRIPLE}.cfg" ${sysroot_flags})93endif()94 95# Build the shared libraries for libc++/libc++abi/libunwind.96if (NOT DEFINED TOOLCHAIN_SHARED_LIBS)97 set(TOOLCHAIN_SHARED_LIBS OFF)98endif()99# Enable usage of the static libunwind and libc++abi libraries.100if (NOT DEFINED TOOLCHAIN_USE_STATIC_LIBS)101 set(TOOLCHAIN_USE_STATIC_LIBS ON)102endif()103 104if (NOT DEFINED LLVM_TARGETS_TO_BUILD)105 if ("${TOOLCHAIN_TARGET_TRIPLE}" MATCHES "^(armv|arm32)+")106 set(LLVM_TARGETS_TO_BUILD "ARM" CACHE STRING "")107 endif()108 if ("${TOOLCHAIN_TARGET_TRIPLE}" MATCHES "^(aarch64|arm64)+")109 set(LLVM_TARGETS_TO_BUILD "AArch64" CACHE STRING "")110 endif()111endif()112 113message(STATUS "Toolchain target to build: ${LLVM_TARGETS_TO_BUILD}")114 115# Allow to override libc++ ABI version (1 is default).116if (NOT DEFINED LIBCXX_ABI_VERSION)117 set(LIBCXX_ABI_VERSION 1)118endif()119 120message(STATUS "Toolchain's Libc++ ABI version: ${LIBCXX_ABI_VERSION}")121 122if (NOT DEFINED CMAKE_BUILD_TYPE)123 set(CMAKE_BUILD_TYPE "Release" CACHE STRING "")124endif()125 126set(CMAKE_CL_SHOWINCLUDES_PREFIX "Note: including file: " CACHE STRING "")127# Required if COMPILER_RT_DEFAULT_TARGET_ONLY is ON128set(CMAKE_C_COMPILER_TARGET "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")129set(CMAKE_CXX_COMPILER_TARGET "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")130 131set(LLVM_DEFAULT_TARGET_TRIPLE "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")132set(LLVM_TARGET_ARCH "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")133set(LLVM_LIT_ARGS "-vv ${LLVM_LIT_ARGS}" CACHE STRING "" FORCE)134 135set(CLANG_DEFAULT_CXX_STDLIB "libc++" CACHE STRING "")136set(CLANG_DEFAULT_LINKER "lld" CACHE STRING "")137set(CLANG_DEFAULT_OBJCOPY "llvm-objcopy" CACHE STRING "")138set(CLANG_DEFAULT_RTLIB "compiler-rt" CACHE STRING "")139set(CLANG_DEFAULT_UNWINDLIB "libunwind" CACHE STRING "")140 141if (NOT DEFINED CMAKE_MSVC_RUNTIME_LIBRARY AND WIN32)142 #Note: Always specify MT DLL for the LLDB build configurations on Windows host.143 if (CMAKE_BUILD_TYPE STREQUAL "Debug")144 set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreadedDebugDLL" CACHE STRING "")145 else()146 set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreadedDLL" CACHE STRING "")147 endif()148 # Grab all ucrt/vcruntime related DLLs into the binary installation folder.149 set(CMAKE_INSTALL_UCRT_LIBRARIES ON CACHE BOOL "")150endif()151 152# Set up RPATH for the target runtime/builtin libraries.153# See some details here: https://reviews.llvm.org/D91099154if (NOT DEFINED RUNTIMES_INSTALL_RPATH)155 set(RUNTIMES_INSTALL_RPATH "\$ORIGIN/../lib;${CMAKE_INSTALL_PREFIX}/lib")156endif()157 158set(LLVM_BUILTIN_TARGETS "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")159 160set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_SYSTEM_NAME "Linux" CACHE STRING "")161set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_INSTALL_RPATH "${RUNTIMES_INSTALL_RPATH}" CACHE STRING "")162set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE BOOL "")163set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_LLVM_CMAKE_DIR "${LLVM_PROJECT_DIR}/llvm/cmake/modules" CACHE PATH "")164 165if (DEFINED TOOLCHAIN_TARGET_COMPILER_FLAGS)166 foreach(lang C;CXX;ASM)167 set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_${lang}_FLAGS "${TOOLCHAIN_TARGET_COMPILER_FLAGS}" CACHE STRING "")168 endforeach()169endif()170foreach(type SHARED;MODULE;EXE)171 set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_${type}_LINKER_FLAGS "-fuse-ld=lld" CACHE STRING "")172endforeach()173 174set(LLVM_RUNTIME_TARGETS "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")175set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ON CACHE BOOL "")176 177set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LLVM_ENABLE_RUNTIMES "${LLVM_ENABLE_RUNTIMES}" CACHE STRING "")178 179set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_SYSTEM_NAME "Linux" CACHE STRING "")180set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_INSTALL_RPATH "${RUNTIMES_INSTALL_RPATH}" CACHE STRING "")181set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE BOOL "")182 183if (DEFINED TOOLCHAIN_TARGET_COMPILER_FLAGS)184 foreach(lang C;CXX;ASM)185 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_${lang}_FLAGS "${TOOLCHAIN_TARGET_COMPILER_FLAGS}" CACHE STRING "")186 endforeach()187endif()188foreach(type SHARED;MODULE;EXE)189 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_${type}_LINKER_FLAGS "-fuse-ld=lld" CACHE STRING "")190endforeach()191 192set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_BUILTINS ON CACHE BOOL "")193set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")194set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")195set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")196set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_PROFILE OFF CACHE BOOL "")197set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_CRT ON CACHE BOOL "")198set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_ORC OFF CACHE BOOL "")199set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_DEFAULT_TARGET_ONLY ON CACHE BOOL "")200set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_INCLUDE_TESTS ON CACHE BOOL "")201set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_CAN_EXECUTE_TESTS ON CACHE BOOL "")202 203set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_USE_BUILTINS_LIBRARY ON CACHE BOOL "")204set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_CXX_LIBRARY libcxx CACHE STRING "")205# The compiler-rt tests disable the clang configuration files during the execution by setting CLANG_NO_DEFAULT_CONFIG=1206# and drops out the --sysroot from there. Provide it explicity via the test flags here if target sysroot has been specified.207set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_TEST_COMPILER_CFLAGS "--stdlib=libc++ ${sysroot_flags}" CACHE STRING "")208 209set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")210set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_ENABLE_SHARED ${TOOLCHAIN_SHARED_LIBS} CACHE BOOL "")211 212set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")213set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_STATIC_UNWINDER ${TOOLCHAIN_USE_STATIC_LIBS} CACHE BOOL "")214set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")215set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")216set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_SHARED ${TOOLCHAIN_SHARED_LIBS} CACHE BOOL "")217 218set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")219set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_SHARED ${TOOLCHAIN_SHARED_LIBS} CACHE BOOL "")220set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ABI_VERSION ${LIBCXX_ABI_VERSION} CACHE STRING "")221set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_CXX_ABI "libcxxabi" CACHE STRING "") #!!!222set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")223# Merge libc++ and libc++abi libraries into the single libc++ library file.224set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_STATIC_ABI_LIBRARY ${TOOLCHAIN_USE_STATIC_LIBS} CACHE BOOL "")225# Forcely disable the libc++ benchmarks on Windows build hosts226# (current benchmark test configuration does not support the cross builds there).227if (WIN32)228 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_INCLUDE_BENCHMARKS OFF CACHE BOOL "")229endif(WIN32)230 231# Avoid searching for the python3 interpreter during the runtimes configuration for the cross builds.232# It starts searching the python3 package using the target's sysroot path, that usually is not compatible with the build host.233find_package(Python3 COMPONENTS Interpreter)234set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_Python3_EXECUTABLE ${Python3_EXECUTABLE} CACHE PATH "")235 236set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_TEST_PARAMS_default "${RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_TEST_PARAMS}")237set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_TEST_PARAMS_default "${RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_TEST_PARAMS}")238set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_TEST_PARAMS_default "${RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_TEST_PARAMS}")239 240# Remote test configuration.241if(DEFINED REMOTE_TEST_HOST)242 # Allow override with the custom values.243 if(NOT DEFINED DEFAULT_TEST_EXECUTOR)244 set(DEFAULT_TEST_EXECUTOR "\\\"${Python3_EXECUTABLE}\\\" \\\"${LLVM_PROJECT_DIR}/libcxx/utils/ssh.py\\\" --host=${REMOTE_TEST_USER}@${REMOTE_TEST_HOST}")245 endif()246 247 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_EMULATOR248 "\\\"${Python3_EXECUTABLE}\\\" \\\"${LLVM_PROJECT_DIR}/llvm/utils/remote-exec.py\\\" --host=${REMOTE_TEST_USER}@${REMOTE_TEST_HOST}"249 CACHE STRING "")250 251 list(APPEND RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_TEST_PARAMS_default "executor=${DEFAULT_TEST_EXECUTOR}")252 list(APPEND RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_TEST_PARAMS_default "executor=${DEFAULT_TEST_EXECUTOR}")253 list(APPEND RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_TEST_PARAMS_default "executor=${DEFAULT_TEST_EXECUTOR}")254endif()255 256set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_TEST_PARAMS "${RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_TEST_PARAMS_default}" CACHE INTERNAL "")257set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_TEST_PARAMS "${RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_TEST_PARAMS_default}" CACHE INTERNAL "")258set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_TEST_PARAMS "${RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_TEST_PARAMS_default}" CACHE INTERNAL "")259 260set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")261set(LLVM_TOOLCHAIN_TOOLS262 llvm-ar263 llvm-cov264 llvm-cxxfilt265 llvm-dwarfdump266 llvm-lib267 llvm-nm268 llvm-objdump269 llvm-pdbutil270 llvm-profdata271 llvm-ranlib272 llvm-readobj273 llvm-size274 llvm-symbolizer275 CACHE STRING "")276 277set(LLVM_DISTRIBUTION_COMPONENTS278 clang279 lld280 LTO281 clang-format282 builtins283 runtimes284 ${LLVM_TOOLCHAIN_TOOLS}285 CACHE STRING "")286