CMakeLists.txt

cmake_minimum_required(VERSION 3.2)
project(test_image)
set(TARGET_PREFIX "arm-none-eabi-")

set(CPU "cortex-m3")
set(CMAKE_C_FLAGS "\
	-c \
	-g \
	-O3 \
	-std=c99 \
	-ffreestanding \
	-mcpu=${CPU} \
	-mthumb \
	-mfloat-abi=soft \
	-nostdlib \
")

set(LD_FLAGS "\
	-nostdlib \
	-nodefaultlibs \
	-nostartfiles \
	-T ${CMAKE_SOURCE_DIR}/linker.txt \
")

set(SOURCES
	main.c
	io.c
	string.c
)

set(ASM_SOURCES
	boot.s
)


set_property(SOURCE ${ASM_SOURCES} PROPERTY LANGUAGE C)

set(CMAKE_C_COMPILER "${TARGET_PREFIX}gcc")
set(CMAKE_LINKER "${TARGET_PREFIX}ld")
set(CMAKE_ASM_COMPILER "${TARGET_PREFIX}as")

set(CMAKE_C_LINK_FLAGS "${LD_FLAGS}")
set(CMAKE_C_LINK_EXECUTABLE "<CMAKE_LINKER> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET>")
set(CROSS_OBJCOPY "${TARGET_PREFIX}objcopy")
set(CROSS_OBJDUMP "${TARGET_PREFIX}objdump")

include_directories(../sdk/include)

add_executable(program_elf ${SOURCES} ${ASM_SOURCES})
set_target_properties(program_elf PROPERTIES PREFIX "")


add_custom_target(program_bin ALL
	COMMAND ${CROSS_OBJCOPY} -O binary $<TARGET_FILE:program_elf> program.bin
	DEPENDS program_elf
	VERBATIM
)
set_target_properties(program_bin PROPERTIES OUTFILE "program.bin")

add_custom_target(program_h ALL
		COMMAND xxd -i $<TARGET_PROPERTY:program_bin,OUTFILE> > program.h
		DEPENDS program_elf
		VERBATIM
		)
set_target_properties(program_h PROPERTIES OUTFILE "program.h")


add_custom_target(program_disam ALL
	COMMAND ${CROSS_OBJDUMP} -b binary -Mforce-thumb -marm -D --prefix-addresses  $<TARGET_PROPERTY:program_bin,OUTFILE> > program.txt
	COMMAND ${CROSS_OBJDUMP} -d -S  $<TARGET_FILE:program_elf> > program.full.txt
	DEPENDS program_bin
	VERBATIM
)
set_target_properties(program_disam PROPERTIES OUTFILE "program.txt")