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Truly independent web browser
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Liav A 0fd7b688af Kernel: Introduce support for using FileSystem object in multiple mounts 
The idea is to enable mounting FileSystem objects across multiple mounts
in contrast to what happened until now - each mount has its own unique
FileSystem object being attached to it.

Considering a situation of mounting a block device at 2 different mount
points at in system, there were a couple of critical flaws due to how
the previous "design" worked:
1. BlockBasedFileSystem(s) that pointed to the same actual device had a
separate DiskCache object being attached to them. Because both instances
were not synchronized by any means, corruption of the filesystem is most
likely achieveable by a simple cache flush of either of the instances.
2. For superblock-oriented filesystems (such as the ext2 filesystem),
lack of synchronization between both instances can lead to severe
corruption in the superblock, which could render the entire filesystem
unusable.
3. Flags of a specific filesystem implementation (for example, with xfs
on Linux, one can instruct to mount it with the discard option) must be
honored across multiple mounts, to ensure expected behavior against a
particular filesystem.

This patch put the foundations to start fix the issues mentioned above.
However, there are still major issues to solve, so this is only a start.
2022-10-22 16:57:52 -04:00
.github Meta: Instruct stale-bot to ignore pr-is-blocked PRs 2022-10-15 12:05:57 +02:00
AK AK: Do not append string bytes as code points when title-casing a string 2022-10-20 18:55:43 +02:00
Base Kernel+Base: Introduce MS_NOREGULAR mount flag 2022-10-22 19:18:15 +02:00
Documentation Documentation: Add FAQ regarding MP3 patents 2022-10-15 22:50:33 +02:00
Kernel Kernel: Introduce support for using FileSystem object in multiple mounts 2022-10-22 16:57:52 -04:00
Meta Meta: Detect Homebrew clang-format 2022-10-22 12:53:03 +02:00
Ports Ports/llvm: Add a dependency on zstd 2022-10-21 20:15:34 +02:00
Tests AK: Do not append string bytes as code points when title-casing a string 2022-10-20 18:55:43 +02:00
Toolchain Toolchain: Keep LLVM from using shm_open and friends 2022-10-21 20:15:34 +02:00
Userland SystemServer: Fix race condition in Service::determine_account() 2022-10-22 19:59:36 +02:00
.clang-format Meta: Update .clang-format to correct qualifier alignment 2022-04-01 21:24:45 +01:00
.clang-tidy Meta: Disable readability-use-anyofallof clang-tidy check 2022-01-09 23:29:57 -08:00
.editorconfig Meta: Add .editorconfig 2022-09-10 17:32:55 +01:00
.gitattributes Repository: Protect port patches from CRLF/LF normalization 2022-01-12 01:08:38 +01:00
.gitignore Meta: Ignore vim's .exrc config 2022-10-06 16:06:50 +01:00
.mailmap Meta: Add a few more e-mail addresses to the .mailmap file 2022-10-16 17:30:53 +02:00
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Handle empty named export 2022-09-02 02:07:37 +01:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
azure-pipelines.yml CI: Disallow test failures on macOS Lagom :^) 2022-01-14 22:39:06 +01:00
CMakeLists.txt Everywhere: Enable building userspace and test binaries on AARCH64 2022-10-14 13:01:13 +02:00
CONTRIBUTING.md Meta: Add Andrew Kaster to list of project maintainers :^) 2022-10-09 15:16:06 +02:00
LICENSE Meta: Update year range in LICENSE :^) 2022-01-02 18:08:02 +01:00
README.md Meta: Add Timon Kruiper to the contributors list :^) 2022-10-18 15:48:29 +02:00
SECURITY.md Meta: Add a security policy 2022-06-29 03:29:27 +00:00

README.md

SerenityOS

Graphical Unix-like operating system for x86 computers.

GitHub Actions Status Azure DevOps Status Fuzzing Status Sonar Cube Static Analysis Discord

About

SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.

Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.

You can watch videos of the system being developed on YouTube:

FAQ: Frequently Asked Questions

Screenshot

Screenshot as of b36968c.png

Features

  • Modern x86 32-bit and 64-bit kernel with pre-emptive multi-threading
  • Browser with JavaScript, WebAssembly, and more (check the spec compliance for JS, CSS, and WASM)
  • Security features (hardware protections, limited userland capabilities, W^X memory, pledge & unveil, (K)ASLR, OOM-resistance, web-content isolation, state-of-the-art TLS algorithms, ...)
  • System services (WindowServer, LoginServer, AudioServer, WebServer, RequestServer, CrashServer, ...) and modern IPC
  • Good POSIX compatibility (LibC, Shell, syscalls, signals, pseudoterminals, filesystem notifications, standard Unix utilities, ...)
  • POSIX-like virtual file systems (/proc, /dev, /sys, /tmp, ...) and ext2 file system
  • Network stack and applications with support for IPv4, TCP, UDP; DNS, HTTP, Gemini, IMAP, NTP
  • Profiling, debugging and other development tools (Kernel-supported profiling, detailed program analysis with software emulation in UserspaceEmulator, CrashReporter, interactive GUI playground, HexEditor, HackStudio IDE for C++ and more)
  • Libraries for everything from cryptography to OpenGL, audio, JavaScript, GUI, playing chess, ...
  • Support for many common and uncommon file formats (PNG, JPEG, GIF, MP3, WAV, FLAC, ZIP, TAR, PDF, QOI, Gemini, ...)
  • Unified style and design philosophy, flexible theming system, custom (bitmap and vector) fonts
  • Games (Solitaire, Minesweeper, 2048, chess, Conway's Game of Life, ...) and demos (CatDog, Starfield, Eyes, mandelbrot set, WidgetGallery, ...)
  • Every-day GUI programs and utilities (Spreadsheet with JavaScript, TextEditor, Terminal, PixelPaint, various multimedia viewers and players, Mail, Assistant, Calculator, ...)

... and all of the above are right in this repository, no extra dependencies, built from-scratch by us :^)

Additionally, there are over two hundred ports of popular open-source software, including games, compilers, Unix tools, multimedia apps and more.

How do I read the documentation?

Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man and updated automatically.

When running SerenityOS you can use man for the terminal interface, or help for the GUI.

Code-related documentation can be found in the documentation folder.

How do I build and run this?

See the SerenityOS build instructions. Serenity runs on Linux, macOS (aarch64 might be a challenge), Windows (with WSL2) and many other *Nixes with hardware or software virtualization.

Get in touch and participate!

Join our Discord server: SerenityOS Discord

Before opening an issue, please see the issue policy.

A general guide for contributing can be found in CONTRIBUTING.md.

Authors

And many more! See here for a full contributor list. The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.