.Makefile

CC      := g++
OBJCOPY := objcopy

CFLAGS  := -I${root_dir}

SRC_H   := $(wildcard *.h)
SRC_C   := $(wildcard *.c)
OBJ_C   := $(patsubst %.c,%.o,$(SRC_C))
SRC_CPP := $(wildcard *.cpp)
OBJ_CPP := $(patsubst %.cpp,%.o,$(SRC_CPP))
SRC_S   := $(wildcard *.s)
OBJ_S   := $(patsubst %.s,%.o,$(SRC_S))
SRC_DAT := $(wildcard *.dat)
OBJ_DAT := $(patsubst %.dat,%.o,$(SRC_DAT))
OBJ     := ${OBJ_C} ${OBJ_CPP} ${OBJ_S} ${OBJ_DAT}

.SUFFIXES: .o .S .c .cpp

.PHONY: all clean

all: build_elf

build_elf: ${OBJ}

%.o: %.c
	${CC} -c ${CFLAGS} $^

%.o: %.cpp
	${CC} -c ${CFLAGS} $^

%.o: %.S
	${CC} -c ${CFLAGS} $^

%.o: %.dat
	${OBJCOPY} -I binary -O elf64-x86-64 -B i386 $^ $@

auto-format:
	@if [ "${SRC_H}" != "" ] || [ "${SRC_C}" != "" ] || [ "${SRC_CPP}" != "" ]; then \
	    clang-format -i ${SRC_H} ${SRC_C} ${SRC_CPP}; \
    fi

clean:
	rm -rf ./build *.o .*.swp .*.swo