# CrossWinToARMLinux.cmake
#
# Set up a CMakeCache for a cross Windows to ARM Linux toolchain build.
#
# This cache file can be used to build a cross toolchain to ARM Linux
# on Windows platform.
#
# NOTE: the build requires a development ARM Linux root filesystem to use
# proper target platform depended library and header files.
#
# Configure:
# cmake -G Ninja ^
# -DTOOLCHAIN_TARGET_TRIPLE=armv7-unknown-linux-gnueabihf ^
# -DCMAKE_INSTALL_PREFIX=../install ^
# -DDEFAULT_SYSROOT=<path-to-develop-arm-linux-root-fs> ^
# -DLLVM_AR=<llvm_obj_root>/bin/llvm-ar[.exe] ^
# -DCMAKE_CXX_FLAGS="-D__OPTIMIZE__" ^
# -DREMOTE_TEST_HOST="<hostname>" ^
# -DREMOTE_TEST_USER="<ssh_user_name>" ^
# -C<llvm_src_root>/llvm-project/clang/cmake/caches/CrossWinToARMLinux.cmake ^
# <llvm_src_root>/llvm-project/llvm
# Build:
# cmake --build . --target install
# Tests:
# cmake --build . --target check-llvm
# cmake --build . --target check-clang
# cmake --build . --target check-lld
# cmake --build . --target check-compiler-rt-<TOOLCHAIN_TARGET_TRIPLE>
# cmake --build . --target check-cxxabi-<TOOLCHAIN_TARGET_TRIPLE>
# cmake --build . --target check-unwind-<TOOLCHAIN_TARGET_TRIPLE>
# cmake --build . --target check-cxx-<TOOLCHAIN_TARGET_TRIPLE>
# LLVM_PROJECT_DIR is the path to the llvm-project directory.
# The right way to compute it would probably be to use "${CMAKE_SOURCE_DIR}/../",
# but CMAKE_SOURCE_DIR is set to the wrong value on earlier CMake versions
# that we still need to support (for instance, 3.10.2).
get_filename_component(LLVM_PROJECT_DIR
"${CMAKE_CURRENT_LIST_DIR}/../../../"
ABSOLUTE)
if (NOT DEFINED DEFAULT_SYSROOT)
message(WARNING "DEFAULT_SYSROOT must be specified for the cross toolchain build.")
endif()
if (NOT DEFINED LLVM_TARGETS_TO_BUILD)
set(LLVM_TARGETS_TO_BUILD "ARM" CACHE STRING "")
endif()
if (NOT DEFINED LLVM_ENABLE_ASSERTIONS)
set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
endif()
if (NOT DEFINED LLVM_ENABLE_PROJECTS)
set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra;lld" CACHE STRING "")
endif()
if (NOT DEFINED LLVM_ENABLE_RUNTIMES)
set(LLVM_ENABLE_RUNTIMES "compiler-rt;libunwind;libcxxabi;libcxx" CACHE STRING "")
endif()
if (NOT DEFINED TOOLCHAIN_TARGET_TRIPLE)
set(TOOLCHAIN_TARGET_TRIPLE "armv7-unknown-linux-gnueabihf")
else()
#NOTE: we must normalize specified target triple to a fully specified triple,
# including the vendor part. It is necessary to synchronize the runtime library
# installation path and operable target triple by Clang to get a correct runtime
# path through `-print-runtime-dir` Clang option.
string(REPLACE "-" ";" TOOLCHAIN_TARGET_TRIPLE "${TOOLCHAIN_TARGET_TRIPLE}")
list(LENGTH TOOLCHAIN_TARGET_TRIPLE TOOLCHAIN_TARGET_TRIPLE_LEN)
if (TOOLCHAIN_TARGET_TRIPLE_LEN LESS 3)
message(FATAL_ERROR "invalid target triple")
endif()
# We suppose missed vendor's part.
if (TOOLCHAIN_TARGET_TRIPLE_LEN LESS 4)
list(INSERT TOOLCHAIN_TARGET_TRIPLE 1 "unknown")
endif()
string(REPLACE ";" "-" TOOLCHAIN_TARGET_TRIPLE "${TOOLCHAIN_TARGET_TRIPLE}")
endif()
if (NOT DEFINED CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "")
endif()
message(STATUS "Toolchain target triple: ${TOOLCHAIN_TARGET_TRIPLE}")
set(CMAKE_CROSSCOMPILING ON CACHE BOOL "")
set(CMAKE_CL_SHOWINCLUDES_PREFIX "Note: including file: " CACHE STRING "")
# Required if COMPILER_RT_DEFAULT_TARGET_ONLY is ON
set(CMAKE_C_COMPILER_TARGET "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
set(CMAKE_CXX_COMPILER_TARGET "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ON CACHE BOOL "")
set(LLVM_DEFAULT_TARGET_TRIPLE "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
set(LLVM_TARGET_ARCH "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
set(LLVM_LIT_ARGS "-vv ${LLVM_LIT_ARGS}" CACHE STRING "" FORCE)
set(CLANG_DEFAULT_LINKER "lld" CACHE STRING "")
if(WIN32)
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded" CACHE STRING "")
set(LLVM_USE_CRT_RELEASE "MT" CACHE STRING "")
endif()
# Set up RPATH for the target runtime/builtin libraries.
# See some details here: https://reviews.llvm.org/D91099
if (NOT DEFINED RUNTIMES_INSTALL_RPATH)
set(RUNTIMES_INSTALL_RPATH "\$ORIGIN/../lib;${CMAKE_INSTALL_PREFIX}/lib")
endif()
set(LLVM_BUILTIN_TARGETS "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_SYSTEM_NAME "Linux" CACHE STRING "")
set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_SYSROOT "${DEFAULT_SYSROOT}" CACHE STRING "")
set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_INSTALL_RPATH "${RUNTIMES_INSTALL_RPATH}" CACHE STRING "")
set(BUILTINS_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE BOOL "")
set(LLVM_RUNTIME_TARGETS "${TOOLCHAIN_TARGET_TRIPLE}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LLVM_ENABLE_RUNTIMES "${LLVM_ENABLE_RUNTIMES}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_SYSTEM_NAME "Linux" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_SYSROOT "${DEFAULT_SYSROOT}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_INSTALL_RPATH "${RUNTIMES_INSTALL_RPATH}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_CMAKE_BUILD_WITH_INSTALL_RPATH ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_BUILTINS ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_PROFILE OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_CRT OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_BUILD_ORC OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_DEFAULT_TARGET_ONLY ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_INCLUDE_TESTS ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_CAN_EXECUTE_TESTS ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_USE_BUILTINS_LIBRARY ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_ENABLE_SHARED OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_USE_LLVM_UNWINDER ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_STATIC_UNWINDER ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_LINK_TESTS_WITH_SHARED_LIBCXXABI OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_LINK_TESTS_WITH_SHARED_LIBCXX OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_LINK_TESTS_WITH_SHARED_LIBCXXABI OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_LINK_TESTS_WITH_SHARED_LIBCXX OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ABI_VERSION 2 CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_CXX_ABI "libcxxabi" CACHE STRING "") #!!!
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")
find_package(Python3 COMPONENTS Interpreter)
# Remote test configuration.
if(DEFINED REMOTE_TEST_HOST)
# Allow override with the custom values.
if(NOT DEFINED DEFAULT_TEST_EXECUTOR)
set(DEFAULT_TEST_EXECUTOR "\\\"${Python3_EXECUTABLE}\\\" \\\"${LLVM_PROJECT_DIR}/libcxx/utils/ssh.py\\\" --host=${REMOTE_TEST_USER}@${REMOTE_TEST_HOST}")
endif()
if(NOT DEFINED DEFAULT_TEST_TARGET_INFO)
set(DEFAULT_TEST_TARGET_INFO "libcxx.test.target_info.LinuxRemoteTI")
endif()
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_COMPILER_RT_EMULATOR
"\\\"${Python3_EXECUTABLE}\\\" \\\"${LLVM_PROJECT_DIR}/llvm/utils/remote-exec.py\\\" --execdir %%T --exec-pattern='.*\\.c.*\\.tmp.*' --host=${REMOTE_TEST_USER}@${REMOTE_TEST_HOST}"
CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_TARGET_INFO "${DEFAULT_TEST_TARGET_INFO}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_EXECUTOR "${DEFAULT_TEST_EXECUTOR}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_TARGET_INFO "${DEFAULT_TEST_TARGET_INFO}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_EXECUTOR "${DEFAULT_TEST_EXECUTOR}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_TARGET_INFO "${DEFAULT_TEST_TARGET_INFO}" CACHE STRING "")
set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_EXECUTOR "${DEFAULT_TEST_EXECUTOR}" CACHE STRING "")
endif()
set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
set(LLVM_TOOLCHAIN_TOOLS
llvm-ar
llvm-cov
llvm-cxxfilt
llvm-dwarfdump
llvm-lib
llvm-nm
llvm-objdump
llvm-pdbutil
llvm-profdata
llvm-ranlib
llvm-readobj
llvm-size
llvm-symbolizer
CACHE STRING "")
set(LLVM_DISTRIBUTION_COMPONENTS
clang
lld
LTO
clang-format
builtins
runtimes
${LLVM_TOOLCHAIN_TOOLS}
CACHE STRING "")