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README
MulanPSL-2.0

说明

本项目fork了Linux0.11的源代码,在此基础上加入了大量中文注释,注释主要来源是《linux内核完全注释》,一小部分是本人自己添加的。

对于linux内核源码有兴趣的朋友可以看一看

ps: 请优先查看Structure.md说明文档

Linux0.11

“RTFSC – Read The Fucking Source Code :)!” –Linus Benedict Torvalds

Linux系统目前发展的如火如荼不管是在嵌入式领域,还是服务器,甚至个人PC都有广泛使用,由此引无数英雄好汉相继加入学习Linux的行列,而这其中定有人想一探Linux内核的究竟。

但是现在Linux内核版本已经5.3.5的版本了,内核相当庞大,几百万行的代码,并不能轻松的阅读。而早期的Linux内核源码比如0.11版本的,代码数量较少不到两万行,而且几乎就是现在内核的精简版本,基本功能原理与内容也都包含,因此非常适合学习。(0.11之前的源码都已丢失,现存的0.10是Ted Ts'o保存下来的,0.11更完善一些)

而且源码面前,了无秘密。相信在读懂源码之后可以对自己的知识能力和解决问题的能力可以更上一层楼,更了解操作系统的原理与设计,深入理解底层的机制,这绝对是内功。

教程

阅读Linux内核0.11的教程肯定要有赵炯博士写的书啦。《Linux内核完全注释》。

基于0.11内核《Linux内核完全注释:基于0.11内核(修正版V3.0)》下载链接https://pan.baidu.com/s/19HHrlhcZXyE2GybhRlEHkA

基于0.12内核 2019年最新修正版本《Linux内核完全注释:基于0.12内核(V5.0)》下载链接https://pan.baidu.com/s/1wdoPCeL1cW1nWisw9yrGZg

还有新设计团队写的《图解Linux内核设计的艺术》 下载链接:https://pan.baidu.com/s/1E0E7wv2MUkhjpbja2nhtzw

更多内核版本

下载最新的内核请到这里下载https://www.kernel.org/

下载1.0之前内核可以到这赵炯博士维护的网站下载http://www.oldlinux.org/Linux.old/

工具

工欲善其事必先利其器,一个良好的工具,肯定能提高生产力,提高效率。

分析Linux内核这种大型项目在Windows下用sourceinsight是很方便的。具体优点可以自行查询,如果你用过,你肯定会赞同这句话的。如果没用过,可以使用一下,分析这种大型项目这个工具肯定会让你爱不释手的。 Linux中和sourceinsight差不多的软件名是kscope。

这里我分享source insight3.5版本的,内附激活码和汉化说明,需要的自行下载,https://pan.baidu.com/s/1IKf4ebN08i9LyohXNBhKxQ

3.5版本已经很稳定了,想要用4.0版本的请自行寻找。

使用方法:

(1)要使用SI看代码,首先要创建一个工程。菜单栏:Project->new project。在弹出的对话框中上面输入工程名字(自己起名字,随便写,但是一般要和工程相对应免得时间长了忘记了),下面输入工程文件存放的位置。

(2)工程项目文件和工程中管理的源代码文件目录可以不同,但是我一般习惯放在一起。点确定,进入new project setting,直接点ok进入下一步。

(3)到了向项目中添加文件的步骤。在左侧选择目录,然后点右侧边栏的add tree即可添加,发现添加了xxx个文件进去。

(4)本来应该已经结束了,但是有遗留问题。因为SI软件有个特点,它只能发现自己识别了的文件类型,对于它未识别的文件类型它就看不到。譬如head.S文件就未包含在内,因为SI默认不认识.S后缀的文件。解决方案:自己配置,把.S添加到目录即可。(或者直接把旁边的添加所有文件勾选上)

(5)解决了4中的问题然后再次添加文件。菜单栏 Project->Add and Remove Project Files 再次浏览目录下,再次add tree,发现添加了额外的文件。

木兰宽松许可证, 第2版 木兰宽松许可证, 第2版 2020年1月 http://license.coscl.org.cn/MulanPSL2 您对“软件”的复制、使用、修改及分发受木兰宽松许可证,第2版(“本许可证”)的如下条款的约束: 0. 定义 “软件”是指由“贡献”构成的许可在“本许可证”下的程序和相关文档的集合。 “贡献”是指由任一“贡献者”许可在“本许可证”下的受版权法保护的作品。 “贡献者”是指将受版权法保护的作品许可在“本许可证”下的自然人或“法人实体”。 “法人实体”是指提交贡献的机构及其“关联实体”。 “关联实体”是指,对“本许可证”下的行为方而言,控制、受控制或与其共同受控制的机构,此处的控制是指有受控方或共同受控方至少50%直接或间接的投票权、资金或其他有价证券。 1. 授予版权许可 每个“贡献者”根据“本许可证”授予您永久性的、全球性的、免费的、非独占的、不可撤销的版权许可,您可以复制、使用、修改、分发其“贡献”,不论修改与否。 2. 授予专利许可 每个“贡献者”根据“本许可证”授予您永久性的、全球性的、免费的、非独占的、不可撤销的(根据本条规定撤销除外)专利许可,供您制造、委托制造、使用、许诺销售、销售、进口其“贡献”或以其他方式转移其“贡献”。前述专利许可仅限于“贡献者”现在或将来拥有或控制的其“贡献”本身或其“贡献”与许可“贡献”时的“软件”结合而将必然会侵犯的专利权利要求,不包括对“贡献”的修改或包含“贡献”的其他结合。如果您或您的“关联实体”直接或间接地,就“软件”或其中的“贡献”对任何人发起专利侵权诉讼(包括反诉或交叉诉讼)或其他专利维权行动,指控其侵犯专利权,则“本许可证”授予您对“软件”的专利许可自您提起诉讼或发起维权行动之日终止。 3. 无商标许可 “本许可证”不提供对“贡献者”的商品名称、商标、服务标志或产品名称的商标许可,但您为满足第4条规定的声明义务而必须使用除外。 4. 分发限制 您可以在任何媒介中将“软件”以源程序形式或可执行形式重新分发,不论修改与否,但您必须向接收者提供“本许可证”的副本,并保留“软件”中的版权、商标、专利及免责声明。 5. 免责声明与责任限制 “软件”及其中的“贡献”在提供时不带任何明示或默示的担保。在任何情况下,“贡献者”或版权所有者不对任何人因使用“软件”或其中的“贡献”而引发的任何直接或间接损失承担责任,不论因何种原因导致或者基于何种法律理论,即使其曾被建议有此种损失的可能性。 6. 语言 “本许可证”以中英文双语表述,中英文版本具有同等法律效力。如果中英文版本存在任何冲突不一致,以中文版为准。 条款结束 如何将木兰宽松许可证,第2版,应用到您的软件 如果您希望将木兰宽松许可证,第2版,应用到您的新软件,为了方便接收者查阅,建议您完成如下三步: 1, 请您补充如下声明中的空白,包括软件名、软件的首次发表年份以及您作为版权人的名字; 2, 请您在软件包的一级目录下创建以“LICENSE”为名的文件,将整个许可证文本放入该文件中; 3, 请将如下声明文本放入每个源文件的头部注释中。 Copyright (c) [Year] [name of copyright holder] [Software Name] is licensed under Mulan PSL v2. 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linux 0.11 内核完全注释(mostly from 赵炯) 展开 收起
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