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https://github.com/DragonOS-Community/DragonOS.git
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40fe15e095
  实现了具有优秀架构设计的新的内存管理模块，对内核空间和用户空间的内存映射、分配、释放、管理等操作进行了封装，使得内核开发者可以更加方便地进行内存管理。
  内存管理模块主要由以下类型的组件组成：
- **硬件抽象层（MemoryManagementArch）** - 提供对具体处理器架构的抽象，使得内存管理模块可以在不同的处理器架构上运行
- **页面映射器（PageMapper）**- 提供对虚拟地址和物理地址的映射，以及页表的创建、填写、销毁、权限管理等操作。分为两种类型：内核页表映射器（KernelMapper）和用户页表映射器（位于具体的用户地址空间结构中）
- **页面刷新器（PageFlusher）** - 提供对页表的刷新操作（整表刷新、单页刷新、跨核心刷新）
- **页帧分配器（FrameAllocator）** - 提供对页帧的分配、释放、管理等操作。具体来说，包括BumpAllocator、BuddyAllocator
- **小对象分配器** - 提供对小内存对象的分配、释放、管理等操作。指的是内核里面的SlabAllocator （SlabAllocator的实现目前还没有完成）
- **MMIO空间管理器** - 提供对MMIO地址空间的分配、管理操作。（目前这个模块待进一步重构）
- **用户地址空间管理机制** - 提供对用户地址空间的管理。
- VMA机制 - 提供对用户地址空间的管理，包括VMA的创建、销毁、权限管理等操作
- 用户映射管理 - 与VMA机制共同作用，管理用户地址空间的映射
- **系统调用层** - 提供对用户空间的内存管理系统调用，包括mmap、munmap、mprotect、mremap等
- **C接口兼容层** - 提供对原有的C代码的接口，是的C代码能够正常运行。
除上面的新增内容以外，其它的更改内容：
- 新增二进制加载器，以及elf的解析器
- 解决由于local_irq_save、local_irq_restore函数的汇编不规范导致影响栈行为的bug。
- 解决local_irq_save未关中断的错误。
- 修复sys_gettimeofday对timezone参数的处理的bug
---------
Co-authored-by: kong <kongweichao@dragonos.org>
129 lines
5.3 KiB
Markdown
129 lines
5.3 KiB
Markdown
# DragonOS
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**Languages** [中文](README.md)|English
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  DragonOS is an operating system running on the X86_64 Architecture. This project is currently under development!
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[All you want to know about DragonOS is here - DragonOS](https://dragonos.org/?p=46)
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## Websites
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- Home Page **[DragonOS.org](https://dragonos.org)**
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- Documentation **[docs.DragonOS.org](https://docs.dragonos.org)**
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- **To learn about development dynamics and development tasks, please visit DragonOS's zulip community:** [https://DragonOS.zulipchat.com](https://DragonOS.zulipchat.com)
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- BBS **[bbs.DragonOS.org](https://bbs.dragonos.org)**
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- Software mirror website **[mirrors.DragonOS.org](https://mirrors.DragonOS.org)**
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- QQ group **115763565**
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- Code search engine [code.DragonOS.org](http://code.dragonos.org)
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## How to run?
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  The steps to run DragonOS are very simple. You can refer to the following information to run DragonOS within 15 minutes at the fastest!
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- [Building DragonOS - DragonOS dev document](https://docs.dragonos.org/zh_CN/latest/introduction/build_system.html)
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- [Teach you to run DragonOS in 15 minutes- Bilibili](https://www.bilibili.com/video/BV1zF411w7s2?share_source=copy_web&vd_source=41ab4a1b73e6f65219a785923511517e)
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## DragonOS' Features
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  See documentation:[Features](https://docs.dragonos.org/zh_CN/latest/introduction/features.html)
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## How to join DragonOS ?
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  If you are willing to join us, you can visit DragonOS's zulip community, learn about development dynamics and development tasks: [https://DragonOS.zulipchat.com](https://DragonOS.zulipchat.com)
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  Or, you can also bring your ideas, discuss with community members, and create some new functions for DragonOS.
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## How to contact the community?
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  You can send an email to the project's maintainer: longjin. His email address is [longjin@DragonOS.org](mailto: longjin@DragonOS.org) .
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  Or join our development exchange QQ group: **115763565**
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  For the discussion of formal issues, we recommend that you use the official language to post on the corresponding section of **[DragonOS's zulip community](https://DragonOS.zulipchat.com)**. Or you can post questions under the issue of this repository.
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## List of contributors
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[Contributors to DragonOS-Community/DragonOS · GitHub](https://github.com/DragonOS-Community/DragonOS/graphs/contributors)
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## Get contact with us
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Community Contact Email: contact@DragonOS.org
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Maintainer longjin's Email：longjin@DragonOS.org
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## Reward
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  DragonOS is an open source public welfare project, but its development cannot be separated from the support of funds. If you want, you can visit **[Sponsor - DragonOS](https://dragonos.org/?page_id=37)** , so as to promote the development of this project. The list of all sponsors will be published. Every bit of your sponsorship will contribute to the development of DragonOS!
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### Where will the sponsorship funds be used?
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We guarantee that all sponsorship funds and items will be used for:
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- Subsidies or equipment support for active community developers
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- Cloud service expenditure of DragonOS
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- Equipment purchase
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- Any use conducive to the development and construction of DragonOS
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### Sponsor List
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**Not yet**
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We hope that in the future, some enterprises can sponsor DragonOS and inject financial power into its development!
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### Individual Sponsor List
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- 万晓兰
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- David Wen
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- [Seele.Clover](https://github.com/seeleclover)
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- [FindWangHao](https://github.com/FindWangHao)
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- [ferchiel](https://github.com/ferchiel)
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- 叶锦毅
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- 林
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- Albert
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- [TerryLeeSCUT · GitHub](https://github.com/TerryLeeSCUT)
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- slientbard
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- 悟
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## Open source statement
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  This project adopts GPLv2 LICENSE for open source. You are welcome to use the code of this project on the basis of abiding by the open source license!
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**What we support:** using this project to create greater value and contribute code to this project under the condition of abiding by the agreement.
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**What we condemn**: any non-compliance with the open source license. Including but not limited to: plagiarizing the code of the project as your graduation project and other academic misconduct, as well as commercial closed source use without payment.
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If you find any violation of the open source license, we welcome you to send email feedback! Let's build an honest open source community together!
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## References
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  This project refers to the following materials. I sincerely give my thanks to the authors of these projects, books and documents!
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- Implementation of a 64 bit operating system, Tian Yu (POSTS&TELECOM PRESS)
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- Principle and implementation of modern operating system, Chen Haibo, Xia Yubin (China Machine Press)
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- [SimpleKernel](https://github.com/Simple-XX/SimpleKernel)
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- [osdev.org](https://wiki.osdev.org/Main_Page)
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- ACPI_6_3_final_Jan30
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- the GNU GRUB manual
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- Intel® 64 and IA-32 Architectures Software Developer’s Manual
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- IA-PC HPET (High Precision Event Timers) Specification
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- [skiftOS]([GitHub - skiftOS/skift: 🥑 A hobby operating system built from scratch in modern C++. Featuring a reactive UI library and a strong emphasis on user experience.](https://github.com/skiftOS/skift))
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- [GuideOS](https://github.com/Codetector1374/GuideOS)
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- [redox-os](https://gitlab.redox-os.org/redox-os/redox)
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- [rcore](https://github.com/rcore-os/rCore)
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