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Truly independent web browser
52,718 Commits 1 Branch 0 Tags 420 MiB
C++ 83.9%
JavaScript 8%
HTML 5.7%
CMake 0.7%
Objective-C++ 0.7%
Other 0.8%
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Timothy Flynn 0652cc48c0 LibUnicode: Perform code point property lookups in constant time 
We currently produce a single table for all categories of code point
properties (GeneralCategory, Script, etc.). Each row contains a field
indicating the range of code points to which that property applies. At
runtime, we then do a binary search through that table to decide if a
code point has a property.

This changes our approach to generate a 2-stage lookup table for each of
those categories. There is an in-depth explanation of these tables above
the new `create_code_point_tables` method. The end effect is that code
point property lookup is reduced from a binary search to constant-time
array lookups.

In total, this change:

    * Increases the size of libunicode.so from 2.7 MB to 2.9 MB.

    * Reduces the runtime of the new benchmark test case added here from
      3.576s to 1.020s (a 3.5x speedup).

    * In a profile of resizing a TextEditor window with a 3MB file open,
      the runtime of checking if a code point has a word break property
      reduces from ~81% to ~56%.
2023-07-26 08:36:20 +02:00
.devcontainer Meta: Switch to clang-format-16 as the standard formatter 2023-07-08 10:32:56 +01:00
.github LibJS+CI: Remove bytecode optimization passes for now 2023-07-21 19:47:36 +03:30
AK AK: Remove unused URL::scheme_requires_port 2023-07-25 06:43:50 -04:00
Base Base: Add more emoji 2023-07-22 08:50:46 -04:00
Documentation Documentation: Add a rough guide on setting up SPICE on Ubuntu 2023-07-18 21:59:14 +01:00
Kernel Kernel: Overhaul system shutdown procedure 2023-07-15 00:12:01 +02:00
Ladybird Ladybird: Run with the JavaScript bytecode VM by default 2023-07-25 20:00:46 +02:00
Meta LibUnicode: Perform code point property lookups in constant time 2023-07-26 08:36:20 +02:00
Ports Ports: Update acpica-tools to use other upstream 2023-07-21 12:48:24 +02:00
Tests LibUnicode: Perform code point property lookups in constant time 2023-07-26 08:36:20 +02:00
Toolchain Toolchain: Copy the same headers as GNU when building Clang 2023-07-19 00:19:35 -06:00
Userland LibUnicode: Move the CodePointRangeComparator struct to a public header 2023-07-26 08:36:20 +02:00
.clang-format Everywhere: Remove needless trailing semi-colons after functions 2023-07-08 10:32:56 +01:00
.clang-tidy Meta: Disable the misc-no-recursion check in clang-tidy 2023-03-18 16:34:41 +01:00
.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 Tests/LibWeb: Remove MANIFEST.json from WPT 2023-07-19 18:34:36 +02:00
.gn Meta: Add the start of a gn build based on the LLVM gn build 2023-07-09 16:22:58 -06:00
.mailmap Everywhere: Update copyrights with my new serenityos.org e-mail :^) 2023-07-15 16:21:29 +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: Add DisposableStack{, Prototype, Constructor} 2023-01-23 09:56:50 +00:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
.ycm_extra_conf.py Meta: Remove i686 references in YCM configuration 2022-12-28 11:53:41 +01:00
azure-pipelines.yml CI: Remove extraneous toolchain job from Azure CI 2022-12-28 15:26:12 -05:00
CMakeLists.txt Toolchain+Ports: Update LLVM to 16.0.6 2023-06-27 12:40:38 +02:00
CONTRIBUTING.md Meta: Switch to clang-format-16 as the standard formatter 2023-07-08 10:32:56 +01:00
LICENSE Meta: Update the year range in LICENSE :^) 2023-01-01 09:38:07 +00:00
README.md README+Meta: Update the screenshot :^) 2023-07-14 23:40:58 +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 x86-64 computers.

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

FAQ | Documentation | Build Instructions

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:

Screenshot

Screenshot as of c03b788.png

Features

  • Modern x86 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.