cmake_minimum_required(VERSION 3.8..3.22)

set(CMAKE_C_COMPILER_WORKS 1)
set(CMAKE_CXX_COMPILER_WORKS 1)

set(CMAKE_CROSSCOMPILING true)

project(Luna LANGUAGES C CXX ASM ASM_NASM VERSION 0.7.0)
set(LUNA_RELEASE_NAME "Pulsar")

set(LUNA_ROOT ${CMAKE_CURRENT_LIST_DIR})
set(LUNA_BASE ${CMAKE_CURRENT_LIST_DIR}/base)

set(LUNA_ARCH $ENV{LUNA_ARCH})

if(NOT DEFINED LUNA_ARCH)
set(LUNA_ARCH "x86_64")
endif()

set(CMAKE_C_COMPILER ${LUNA_ARCH}-luna-gcc)
set(CMAKE_CXX_COMPILER ${LUNA_ARCH}-luna-g++)
set(CMAKE_ASM_COMPILER ${LUNA_ARCH}-luna-gcc)

set(CMAKE_ASM_NASM_OBJECT_FORMAT elf64)

set(CMAKE_ASM_NASM_LINK_EXECUTABLE "${LUNA_ARCH}-luna-ld <FLAGS> <CMAKE_ASM_NASM_LINK_FLAGS> <LINK_FLAGS> <OBJECTS>  -o <TARGET> <LINK_LIBRARIES>")

set(CMAKE_FIND_ROOT_PATH ${LUNA_ROOT}/toolchain/${LUNA_ARCH}-luna)

message(STATUS "Configuring Luna for ${LUNA_ARCH}")

set(COMMON_FLAGS -Wall -Wextra -Werror -Wvla 
    -Wdisabled-optimization -Wformat=2 -Winit-self 
    -Wmissing-include-dirs -Wswitch-default -Wcast-qual 
    -Wundef -Wcast-align -Wwrite-strings -Wlogical-op 
    -Wredundant-decls -Wshadow -Wconversion -Wbidi-chars=any
    -fno-asynchronous-unwind-tables -fno-omit-frame-pointer 
    -std=c++20 -fno-rtti -fno-exceptions)

if(LUNA_NO_OPTIMIZATIONS)
set(COMMON_FLAGS ${COMMON_FLAGS} -ggdb)
else()
set(COMMON_FLAGS ${COMMON_FLAGS} -Os)
endif()

add_subdirectory(libluna)
add_subdirectory(libos)
add_subdirectory(gui)
add_subdirectory(libc)
add_subdirectory(kernel)
add_subdirectory(utils)
add_subdirectory(tests)
add_subdirectory(shell)
add_subdirectory(system)