存根用例程地址来替换自己，以及执行例程。
Stub replaces itself with the address of the routine, and executes the routine.
本文的 下载 部分为 Ant 环境提供了范例脚本以及构建文件，该环境可以用于指导、执行并生成关于范例程序的报告。
The Downloads section of this article provides sample scripts and build files for an Ant environment that can be used to instrument, execute, and generate reports on the sample application.
这个代码设置内核页面目录、创建身份内核映射、标识体系结构和处理器以及执行分支start_kernel(初始化系统的主例程)。
The code sets up the kernel page directory, creates identity kernel mapping, identifies architecture and processor, and branches to start_kernel (the main routine whereby the system is initialized).
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