CC = gcc
CFLAGS = -shared -fPIC -Wall -Wextra -Werror -fno-strict-aliasing -fPIC -fno-omit-frame-pointer -fno-stack-protector -Wl,-z,relro,-z,now
LDFLAGS = -ldl -ljson-c
HOOK_LDFLAGS = -ldl -pthread

TARGET_NAME = intercept.so
HOOK_NAME = hook_write.so

BUILD_DIR = build
SRC_DIR = src

SRC = $(wildcard $(SRC_DIR)/*.c)
SRC := $(filter-out $(SRC_DIR)/hook_write.c, $(SRC))  # 排除 hook_write.c

OBJ = $(patsubst $(SRC_DIR)/%.c,$(BUILD_DIR)/%.o,$(SRC))
TARGET = $(BUILD_DIR)/$(TARGET_NAME)

HOOK_SRC = $(SRC_DIR)/hook_write.c
HOOK_OBJ = $(BUILD_DIR)/hook_write.o
HOOK_TARGET = $(BUILD_DIR)/$(HOOK_NAME)

# 如果需要开启 debug，只需执行 make DEBUG=1
ifeq ($(DEBUG),1)
	CFLAGS += -DDEBUG -g
endif

all: $(TARGET) $(HOOK_TARGET)

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

$(TARGET): $(OBJ)
	@mkdir -p $(BUILD_DIR)
	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)

$(HOOK_TARGET): $(HOOK_OBJ)
	@mkdir -p $(BUILD_DIR)
	$(CC) $(CFLAGS)  -Wno-error=unused-result -o $@ $^ $(HOOK_LDFLAGS)

$(HOOK_OBJ): $(HOOK_SRC)
	@mkdir -p $(BUILD_DIR)
	$(CC) $(CFLAGS)  -Wno-error=unused-result -c $< -o $@

clean:
	rm -rf $(BUILD_DIR)

debug:
	rm -rf $(BUILD_DIR)
	$(MAKE) DEBUG=1

rebuild: clean all