# 27.4.启用内核外部模块 DTrace

要为一个内核外模块添加 DTrace 支持（这对于开发和调试非常有用），在模块的 Makefile 中加入以下行：

```cpp
CFLAGS+= -DKDTRACE_HOOKS
```

此标志在编译过程中启用 DTrace 钩子，从而能对模块进行高级调试和监控。修改后，确保重新编译该模块以激活 DTrace 功能。


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