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cmake_minimum_required(VERSION 3.16)
project(
SerenitySuperbuild
DESCRIPTION "Orchestrate host and target builds in a single build"
LANGUAGES NONE
)
# NOTE: Before CMake 3.19, if a custom command is attached to multiple step targets for Makefile and Visual Studio generators,
# it might be run multiple times during the build. Enable new behavior of policy CMP0114 to avoid this, or apply the
# workaround from https://gitlab.kitware.com/cmake/cmake/-/issues/18663#note_489967
if(NOT CMAKE_VERSION VERSION_LESS "3.19")
cmake_policy(SET CMP0114 NEW)
macro(ensure_dependencies)
endmacro()
else()
macro(ensure_dependencies proj)
foreach(step IN ITEMS configure build install)
if(NOT TARGET "${proj}-${step}")
ExternalProject_Add_StepTargets("${proj}" "${step}")
endif()
if(step STREQUAL "install")
ExternalProject_Add_StepDependencies("${proj}" install "${proj}-build")
elseif(step STREQUAL "build")
ExternalProject_Add_StepDependencies("${proj}" build "${proj}-configure")
endif()
endforeach()
endmacro()
endif()
get_filename_component(
SERENITY_SOURCE_DIR "${PROJECT_SOURCE_DIR}/../../.."
ABSOLUTE CACHE
)
set(SERENITY_ARCH "i686" CACHE STRING "Target architecture for SerenityOS.")
set(SERENITY_TOOLCHAIN "GNU" CACHE STRING "Compliler toolchain to use for Serenity (GNU or Clang)")
# FIXME: It is preferred to keep all the sub-build artifacts below the binary directory for the superbuild
# However, this has an impact on developer's IDE settings and more significantly, the Ports tree.
# See https://github.com/SerenityOS/serenity/pull/9297#discussion_r697877603
set(SERENITY_BUILD_DIR_SUFFIX "")
if(NOT SERENITY_TOOLCHAIN STREQUAL "GNU")
string(TOLOWER "${SERENITY_TOOLCHAIN}" SERENITY_BUILD_DIR_SUFFIX)
endif()
set(SERENITY_BUILD_DIR "${PROJECT_BINARY_DIR}/../${SERENITY_ARCH}${SERENITY_BUILD_DIR_SUFFIX}")
if (CMAKE_HOST_SYSTEM_NAME MATCHES "SerenityOS")
message(STATUS "Good job on building cmake!")
else()
configure_file("${SERENITY_SOURCE_DIR}/Toolchain/CMake/${SERENITY_TOOLCHAIN}Toolchain.txt.in" "${SERENITY_BUILD_DIR}/CMakeToolchain.txt" @ONLY)
set(SERENITY_TOOLCHAIN_FILE "${SERENITY_BUILD_DIR}/CMakeToolchain.txt" CACHE PATH "Toolchain file to use for cross-compilation")
# Support non-cross builds by stuffing this in a variable
set(SERENITY_TOOLCHAIN_FILE_ARG "-DCMAKE_TOOLCHAIN_FILE:STRING=${SERENITY_TOOLCHAIN_FILE}")
endif()
# Allow the Ninja generators to output messages as they happen by assigning
# these jobs to the 'console' job pool
set(console_access "")
if(CMAKE_GENERATOR MATCHES "^Ninja")
set(
console_access
USES_TERMINAL_CONFIGURE YES
USES_TERMINAL_BUILD YES
USES_TERMINAL_INSTALL YES
)
endif()
include(ExternalProject)
# Collect options for Lagom build
set(lagom_options "")
macro(serenity_option name)
set(${ARGV})
list(APPEND lagom_options "-D${name}:STRING=${${name}}")
endmacro()
include("${SERENITY_SOURCE_DIR}/Meta/CMake/lagom_options.cmake")
# Forward user defined host toolchain to lagom build
if (DEFINED CMAKE_C_COMPILER)
set(CMAKE_C_COMPILER "${CMAKE_C_COMPILER}" CACHE STRING "C Compiler to use for host builds")
list(APPEND lagom_options "-DCMAKE_C_COMPILER:STRING=${CMAKE_C_COMPILER}")
endif()
if (DEFINED CMAKE_CXX_COMPILER)
set(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER}" CACHE STRING "C++ Compiler to use for host builds")
list(APPEND lagom_options "-DCMAKE_CXX_COMPILER:STRING=${CMAKE_CXX_COMPILER}")
endif()
ExternalProject_Add(
lagom
SOURCE_DIR "${SERENITY_SOURCE_DIR}/Meta/Lagom"
BINARY_DIR "${PROJECT_BINARY_DIR}/../lagom"
INSTALL_DIR "${PROJECT_BINARY_DIR}/../lagom-install"
EXCLUDE_FROM_ALL YES
CMAKE_CACHE_ARGS
"-DCMAKE_INSTALL_PREFIX:STRING=<INSTALL_DIR>"
"-DUCD_PATH:STRING=${SERENITY_BUILD_DIR}/UCD"
"-DCLDR_PATH:STRING=${SERENITY_BUILD_DIR}/CLDR"
${lagom_options}
# Always call the build step of tools, so keeping things up-to-date is easy
BUILD_ALWAYS YES
# Expose install step as a target, so it can be depended on
STEP_TARGETS install
${console_access}
)
ensure_dependencies(lagom)
# Collect options for serenity build
set(serenity_options "")
macro(serenity_option name)
set(${ARGV})
list(APPEND serenity_options "-D${name}:STRING=${${name}}")
endmacro()
include("${SERENITY_SOURCE_DIR}/Meta/CMake/serenity_options.cmake")
ExternalProject_Add(
serenity
SOURCE_DIR "${SERENITY_SOURCE_DIR}"
BINARY_DIR "${SERENITY_BUILD_DIR}"
CMAKE_CACHE_ARGS
# Tell the find_package(Lagom REQUIRED) command call where to find
# the CMake package
"-DCMAKE_PREFIX_PATH:STRING=${PROJECT_BINARY_DIR}/../lagom-install"
"-DUCD_PATH:STRING=${SERENITY_BUILD_DIR}/UCD"
"-DCLDR_PATH:STRING=${SERENITY_BUILD_DIR}/CLDR"
"-DSERENITY_ARCH:STRING=${SERENITY_ARCH}"
"${SERENITY_TOOLCHAIN_FILE_ARG}"
${serenity_options}
# Always call the build step
BUILD_ALWAYS YES
# Host tools must be built and installed before the OS can be built
DEPENDS lagom-install
STEP_TARGETS configure install
${console_access}
)
ensure_dependencies(serenity)
|
