221 lines
7.8 KiB
CMake
221 lines
7.8 KiB
CMake
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# Copyright (C) 2023-2024 Michael Fabian 'Xaymar' Dirks
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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cmake_minimum_required(VERSION 3.30...4.0)
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include_guard(GLOBAL)
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if((CMAKE_GENERATOR STREQUAL "Ninja") OR (CMAKE_GENERATOR STREQUAL "Ninja Multi-Config"))
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include("${CMAKE_CURRENT_LIST_DIR}/../generators/ninja.cmake")
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endif()
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list(APPEND CMAKE_MESSAGE_INDENT "[LLVM-ARM] ")
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set(_VERSION "18.1.3")
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set(_FILE "llvm-arm-${CMAKE_HOST_SYSTEM_NAME}-${CMAKE_HOST_SYSTEM_PROCESSOR}")
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if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows") # Windows
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set(_FILENAME "LLVM-ET-Arm-${_VERSION}-Windows-x86_64")
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set(_FILEEXT "zip")
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elseif(CMAKE_HOST_SYSTEM_NAME MATCHES "Darwin") # Darwin
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set(_FILENAME "LLVM-ET-Arm-${_VERSION}-Darwin")
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set(_FILEEXT "dmg")
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else() # Generic Unix-like
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set(_FILEEXT "tar.xz")
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if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "(x86)|(X86)|(amd64)|(AMD64)")
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set(_FILENAME "LLVM-ET-Arm-${_VERSION}-Linux-x86_64")
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else()
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set(_FILENAME "LLVM-ET-Arm-${_VERSION}-Linux-AArch64")
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endif()
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endif()
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# Very hacky way to get CMake to behave like a normal makefile generator, instead of a mentally challenged makefile generator.
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if(TRUE) # Check if we've already installed one of these,
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if(WIN32)
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set(TEMP "$ENV{TEMP}")
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else()
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set(TEMP "$ENV{TMPDIR}")
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endif()
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set(_PATH "${TEMP}/cmake/llvm-arm/${_VERSION}")
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if(EXISTS "${_PATH}")
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file(READ "${_PATH}" _DIR)
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if (NOT EXISTS "${_DIR}")
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file(REMOVE "${_PATH}")
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unset(_DIR)
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endif()
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endif()
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endif()
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if((NOT _DIR) OR (EXISTS "${PROJECT_BINARY_DIR}/toolchain/${_FILE}.version"))
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# Check if the version is what we expect.
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if(EXISTS "${PROJECT_BINARY_DIR}/toolchain/${_FILE}.version")
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file(READ "${PROJECT_BINARY_DIR}/toolchain/${_FILE}.version" _VERSION_STORED)
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endif()
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if((NOT _VERSION_STORED) OR (_VERSION_STORED VERSION_LESS _VERSION))
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message(STATUS "Updating... (${_VERSION_STORED} < ${_VERSION})")
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# Download the appropriate package from https://github.com/ARM-software/LLVM-embedded-toolchain-for-Arm
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#- Grab the latest hash from the remote.
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set(_HASH_FILE "${PROJECT_BINARY_DIR}/toolchain/${_FILE}.sha256")
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file(DOWNLOAD
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"https://github.com/ARM-software/LLVM-embedded-toolchain-for-Arm/releases/download/release-${_VERSION}/${_FILENAME}.${_FILEEXT}.sha256"
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"${_HASH_FILE}"
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)
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file(READ "${_HASH_FILE}" _DOWNLOAD_SHA256)
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string(REGEX MATCH "[0-9a-fA-F]+" _DOWNLOAD_SHA256 "${_DOWNLOAD_SHA256}")
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file(REMOVE "${_HASH_FILE}")
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#- Download the latest toolchain
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set(_PACKAGE_FILE "${PROJECT_BINARY_DIR}/toolchain/${_FILE}.${_FILEEXT}")
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file(DOWNLOAD
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"https://github.com/ARM-software/LLVM-embedded-toolchain-for-Arm/releases/download/release-${_VERSION}/${_FILENAME}.${_FILEEXT}"
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"${_PACKAGE_FILE}"
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EXPECTED_HASH SHA256=${_DOWNLOAD_SHA256}
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)
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#- Extract the contents
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file(ARCHIVE_EXTRACT
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INPUT "${_PACKAGE_FILE}"
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DESTINATION "${PROJECT_BINARY_DIR}/toolchain/"
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)
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#file(REMOVE "${_PACKAGE_FILE}")
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file(WRITE "${PROJECT_BINARY_DIR}/toolchain/${_FILE}.version" "${_VERSION}")
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endif()
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# Update the virtual link
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file(WRITE "${_PATH}" "${PROJECT_BINARY_DIR}/toolchain/${_FILENAME}/")
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set(_LLVM_TOOLCHAIN "${PROJECT_BINARY_DIR}/toolchain/${_FILENAME}/")
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else()
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set(_LLVM_TOOLCHAIN "${_DIR}")
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endif()
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list(APPEND CMAKE_PREFIX_PATH
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"${_LLVM_TOOLCHAIN}/bin"
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"${_LLVM_TOOLCHAIN}"
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)
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# Find necessary programs.
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# - AR
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find_program(
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CMAKE_AR
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NAMES
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llvm-ar
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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# - Library Randomizer
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find_program(
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CMAKE_RANLIB
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NAMES
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llvm-ranlib
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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# - Linker
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find_program(
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CMAKE_LINKER
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NAMES
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ld.lld
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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# - Object Copy
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find_program(
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CMAKE_OBJCOPY
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NAMES
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llvm-objcopy
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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# - Object Dump
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find_program(
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CMAKE_OBJDUMP
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NAMES
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llvm-objdump
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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# - Strip Debug Info
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find_program(
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CMAKE_STRIP
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NAMES
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llvm-strip
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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# - C Compiler
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find_program(
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CMAKE_C_COMPILER
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NAMES
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clang
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clang++
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clang-cpp
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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set(CMAKE_C_COMPILER_AR "${CMAKE_AR}" CACHE STRING "" FORCE)
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#set(CMAKE_C_COMPILER_CLANG_SCAN_DEPS "NOT-FOUND" CACHE STRING "" FORCE)
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set(CMAKE_C_COMPILER_RANLIB "${CMAKE_RANLIB}" CACHE STRING "" FORCE)
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set(CMAKE_C_LINKER "${CMAKE_LINKER}" CACHE STRING "" FORCE)
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set(CMAKE_C_LINKER_ID "LDD" CACHE STRING "" FORCE)
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set(CMAKE_C_LINKER_FRONTEND_VARIANT "LLD" CACHE STRING "" FORCE)
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# - C++ Compiler
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find_program(
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CMAKE_CXX_COMPILER
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NAMES
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clang++
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clang-cpp
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clang
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PATHS
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"${_LLVM_TOOLCHAIN}/bin"
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NO_DEFAULT_PATH NO_PACKAGE_ROOT_PATH NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_INSTALL_PREFIX NO_CMAKE_FIND_ROOT_PATH
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)
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set(CMAKE_CXX_COMPILER_AR "${CMAKE_AR}" CACHE STRING "" FORCE)
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#set(CMAKE_CXX_COMPILER_CLANG_SCAN_DEPS "NOT-FOUND" CACHE STRING "" FORCE)
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set(CMAKE_CXX_SCAN_FOR_MODULES OFF CACHE BOOL "" FORCE)
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set(CMAKE_CXX_COMPILER_RANLIB "${CMAKE_RANLIB}" CACHE STRING "" FORCE)
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set(CMAKE_CXX_LINKER "${CMAKE_C_LINKER}" CACHE STRING "" FORCE)
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set(CMAKE_CXX_LINKER_ID "LLD" CACHE STRING "" FORCE)
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set(CMAKE_CXX_LINKER_FRONTEND_VARIANT "LLD" CACHE STRING "" FORCE)
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# - Assembly Compiler
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set(CMAKE_ASM_COMPILER "${CMAKE_C_COMPILER}" CACHE STRING "" FORCE)
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set(CMAKE_ASM_COMPILER_AR "${CMAKE_AR}" CACHE STRING "" FORCE)
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#set(CMAKE_ASM_COMPILER_CLANG_SCAN_DEPS "NOT-FOUND" CACHE STRING "" FORCE)
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set(CMAKE_ASM_COMPILER_RANLIB "${CMAKE_RANLIB}" CACHE STRING "" FORCE)
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set(CMAKE_ASM_LINKER "${CMAKE_C_LINKER}" CACHE STRING "" FORCE)
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set(CMAKE_ASM_LINKER_ID "LLD" CACHE STRING "" FORCE)
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set(CMAKE_ASM_LINKER_FRONTEND_VARIANT "LLD" CACHE STRING "" FORCE)
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#mark_as_advanced(CLANG_C_COMPILER CLANG_CPP_COMPILER CLANG__AR CLANG__LD_LDD)
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set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=\"${CMAKE_C_LINKER}\"")
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set(CMAKE_STATIC_LINKER_FLAGS_INIT "-fuse-ld=\"${CMAKE_C_LINKER}\"")
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set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=\"${CMAKE_C_LINKER}\"")
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set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=\"${CMAKE_C_LINKER}\"")
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execute_process(
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COMMAND "${CMAKE_C_COMPILER}" "--version"
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OUTPUT_VARIABLE _VERSION_INSTALLED
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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string(REGEX MATCH "[0-9]+\.[0-9]+\.[0-9]+" _VERSION_INSTALLED "${_VERSION_INSTALLED}")
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message(STATUS "v${_VERSION_INSTALLED}")
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list(POP_BACK CMAKE_MESSAGE_INDENT)
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