CC := gcc
CFLAGS := -Wall -Wextra -std=gnu23 -I include -O3
SRC_DIR := src
BUILD_DIR := build
PROGRAM_NAME := criscv

# Find all .c files in src directory
SRCS := $(wildcard $(SRC_DIR)/*.c)
# Generate corresponding .o file names in obj directory
OBJS := $(patsubst $(SRC_DIR)/%.c,$(BUILD_DIR)/obj/%.o,$(SRCS))
# Name of the final executable
TARGET := $(BUILD_DIR)/$(PROGRAM_NAME)

.PHONY: all clean

all: $(TARGET)

$(TARGET): $(OBJS) | $(BUILD_DIR)
	$(CC) $(CFLAGS) $^ -o $@

$(BUILD_DIR)/obj/%.o: $(SRC_DIR)/%.c | $(BUILD_DIR)/obj
	$(CC) $(CFLAGS) -c $< -o $@

$(BUILD_DIR) $(BUILD_DIR)/obj:
	mkdir -p $@

clean:
	rm -rf $(BUILD_DIR)