cmake_minimum_required(VERSION 3.10)
project(hello-world)

# set(CMAKE_VERBOSE_MAKEFILE ON)
set(CMAKE_C_COMPILER riscv-none-elf-gcc)
set(CMAKE_CXX_COMPILER riscv-none-elf-gcc)
set(CMAKE_OBJCOPY riscv-none-elf-objcopy)
set(CMAKE_SIZE riscv-none-elf-size)

set_property(SOURCE Startup/startup_ch32v20x_D6.S PROPERTY LANGUAGE C)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED True)

include_directories(Debug)
include_directories(Core)
include_directories(User)
include_directories(Peripheral/inc)

add_definitions(-finline-functions-called-once -g)

add_definitions(-Wall -Wextra -march=rv32imac_zicsr_zifencei -mabi=ilp32 -msmall-data-limit=0 -msave-restore -Os -fmessage-length=0 -fsigned-char -ffunction-sections -fdata-sections -fno-common -mcmodel=medany --specs=nano.specs)

file(GLOB SOURCES "Debug/*.c" "Core/*.c" "User/*.c" "Peripheral/src/*.c" "Startup/*.S")

add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}.hex
                   WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
                   COMMAND ${CMAKE_OBJCOPY}
                   ARGS -O ihex ${CMAKE_PROJECT_NAME}.elf ${CMAKE_PROJECT_NAME}.hex)
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}.siz
                   WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
                   COMMAND ${CMAKE_SIZE}
                   ARGS --format=berkeley ${CMAKE_PROJECT_NAME}.elf)

add_executable(${CMAKE_PROJECT_NAME}.elf ${SOURCES})

target_link_options(${CMAKE_PROJECT_NAME}.elf PRIVATE -T ${CMAKE_SOURCE_DIR}/Ld/Link.ld -Os -march=rv32imac_zicsr_zifencei -mabi=ilp32 -nostartfiles -Xlinker -gc-sections -static --specs=nano.specs -mcmodel=medany)