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README
MulanPSL-2.0

yocto-meta-openeuler

介绍

openEuler Embedded的构建工具基于Yocto Poky Project。Poky是Yocto Project的参考发行版。在Yocto Project里,一个很重要的概念是配方层模型(Layer Model)。我们可以将一些相关的配方放入同一个配方层,简化定制流程。后加入的层级里的配方可以覆盖已经加入的层级里存在的配方。

yocto-meta-openeuler是用于构建openEuler Embedded的一系列构建配方的集合,也就是配方层的集合,以及包含相关构建工具和openEuler Embedded的开发使用文档。通过修改yocto-meta-openeuler中的配方层,如meta-openeuler,我们针对openEuler Embedded实现了大量定制化的需求,包括但不限于:

  • 与openEuler其他场景的Linux共享软件包,共演进。
  • 采用预先构建的工具链和libc库,以加速构建。
  • 尽可能采用预先构建好的主机工具,以加速构建,同时采用容器化的构建。
  • 针对嵌入式场景做相应的优化。

目录架构

  • scripts : 一系列辅助工具,用于帮助构建环境,如下载代码仓、创建构建环境等等

  • meta-openeuler : 构建openEuler Embedded所创建的Yocto层,包含相应的配置、构建配方等等

  • bsp : openEuler Embedded的BSP(Board Support Package)抽象层,包含当前openEuler Embedded所支持的硬件BSP, 如QEMU、树莓派4B等等

  • RTOS : openEuler Embeddd的RTOS(Real-Time Operating System)抽象层,主要针对Linux和RTOS混合关键部署的场景,当前支持RT-Thread和Zephyr

  • docs : openEuler Embedded使用和开发文档, CI会自动构建文档,并发布于如下地址:

    openEuler Embedded开发使用文档

快速上手

使用oebuild快速构建openEuler Embedded

当前只支持在X86 64位的Linux环境下构建openEuler Embedded。具体操作见说明文档:

使用oebuild快速构建openEuler Embedded

oebuild会自动在src目录下git clone本仓库,默认切换到最新开发分支,即master

oebuild构建后会自动生成如下目录结构:

<openEuler Embedded构建顶层目录(自己创建的目录)>
├── build  实际构建目录
    ├── output  镜像输出目录
    ├── tmp  构建工作临时文件目录
├── src    openEuler Embedded所有代码包目录

参与贡献

  1. Fork 本仓库

  2. 新建 Feat_xxx 分支 (名称对应需要开发的特性)。每个特性使用一个单独的分支,好处是可以同时开发多个不相干的特性,并且新建pull request的时候互不影响。减少了代码仓管理的复杂度。

  3. 提交代码到自己的仓库:

    一个合格的git提交信息如下所示,请尽可能在提交信息中描述相关信息,例如改动的地方,修改的原因,如何验证等等。(需要替换的内容用“[]”包含,实际提交信息中不用包含“[]”)

    [module name, e.g. docs]: [git commit msg titile (what to change)]
    
    [git commit msg body (detailed explaination of what to change, why to change, and even how to verify)]
    
    Signed-off-by: [name] <[email]>

    本仓库采用了gitlint检查每次git提交,建议提交前使用 gitlint 检查您的提交,以避免CI门禁检查失败.

  4. 新建 Pull Request,等待审查并将代码合并到本仓库(可以选择合并后删除用于开发的分支)

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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简介

yocto-meta-openeuler是用于构建openEuler Embedded所需要的一系列工具、构建配方的集合, 以及当前openEuler Embedded开发使用文档的承载仓库。 展开 收起
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