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Andreas Kling 877ddaa016 LibWeb: Fix off-by-one in initial containing block overflow calculation
We're using the outermost right and bottom child edges to determine the
width and height of the ICB. However, since these edges are *within* the
respective child's rectangle, we have to add 1 when turning them into
width and height values.

This fixes an issue where scrolling a document would shrink its viewport
rect by 1 pixel (on both axes) on every scroll step.
2021-10-23 16:10:44 +02:00
.github man.serenityos.org: Simplify local builds 2021-10-22 19:49:28 +03:00
AK AK: Avoid temporary String allocation in Formatter<FormatString> 2021-10-21 22:19:50 +02:00
Base Tests: Add a unit test to ensure the /dev/mem device works correctly 2021-10-22 13:13:00 +02:00
Documentation Documentation: Tweak RunningOnRaspberryPi a bit 2021-10-21 20:01:34 +01:00
Kernel Kernel: Fix restrictions in is_allowed_to_mmap_to_userspace function 2021-10-22 13:13:00 +02:00
Meta man.serenityos.org: Make section titles more descriptive 2021-10-22 19:49:28 +03:00
Ports Ports: Register all dependencies of ports 2021-10-21 14:48:21 +01:00
Tests LibC: Fix up mblen 2021-10-22 13:28:56 -07:00
Toolchain Toolchain+Meta: Update LLVM version to 13.0.0 2021-10-17 17:09:58 +01:00
Userland LibWeb: Fix off-by-one in initial containing block overflow calculation 2021-10-23 16:10:44 +02:00
.clang-format Meta: Update .clang-format to not indent nested namespaces 2020-03-14 10:10:21 +01:00
.gitattributes Meta: Mark the other image file formats as binary in .gitattributes 2021-05-20 08:04:28 +02:00
.gitignore man.serenityos.org: Simplify local builds 2021-10-22 19:49:28 +03:00
.mailmap Meta: Add myself to the mailmap 2021-10-04 12:03:53 +01:00
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Allow Unicode escape sequences in identifiers 2021-08-19 23:49:25 +02:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
azure-pipelines.yml CI: Build the Clang toolchain a single time for both onboard pipelines 2021-10-18 03:25:26 -07:00
CMakeLists.txt HeaderCheck: It checks some of your headers 2021-10-20 09:20:18 +01:00
CONTRIBUTING.md Meta: Add Idan Horowitz as a project maintainer :^) 2021-09-07 22:16:25 +02:00
LICENSE Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
README.md Everywhere: Change from http to https where feasible 2021-10-05 02:08:08 +02:00

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.

I (Andreas) regularly post raw hacking sessions and demos on my YouTube channel.

Sometimes I write about the system on my github.io blog.

I'm also on Patreon and GitHub Sponsors if you would like to show some support that way.

Screenshot

Screenshot as of b36968c.png

Kernel features

  • x86 (32-bit) and x86_64 (64-bit) kernel with pre-emptive multi-threading
  • Hardware protections (SMEP, SMAP, UMIP, NX, WP, TSD, ...)
  • IPv4 stack with ARP, TCP, UDP and ICMP protocols
  • ext2 filesystem
  • POSIX signals
  • Purgeable memory
  • /proc filesystem
  • Pseudoterminals (with /dev/pts filesystem)
  • Filesystem notifications
  • CPU and memory profiling
  • SoundBlaster 16 driver
  • VMWare/QEMU mouse integration

System services

  • Launch/session daemon (SystemServer)
  • Compositing window server (WindowServer)
  • Text console manager (TTYServer)
  • DNS client (LookupServer)
  • Network protocols server (RequestServer and WebSocket)
  • Software-mixing sound daemon (AudioServer)
  • Desktop notifications (NotificationServer)
  • HTTP server (WebServer)
  • Telnet server (TelnetServer)
  • DHCP client (DHCPClient)

Libraries

  • C++ templates and containers (AK)
  • Event loop and utilities (LibCore)
  • 2D graphics library (LibGfx)
  • OpenGL 1.x compatible library (LibGL)
  • GUI toolkit (LibGUI)
  • Cross-process communication library (LibIPC)
  • HTML/CSS engine (LibWeb)
  • JavaScript engine (LibJS)
  • Markdown (LibMarkdown)
  • Audio (LibAudio)
  • Digital Signal Processing/Synthesizer Chains (LibDSP)
  • PCI database (LibPCIDB)
  • Terminal emulation (LibVT)
  • Out-of-process network protocol I/O (LibProtocol)
  • Mathematical functions (LibM)
  • ELF file handling (LibELF)
  • POSIX threading (LibPthread)
  • Higher-level threading (LibThreading)
  • Transport Layer Security (LibTLS)
  • HTTP and HTTPS (LibHTTP)
  • IMAP (LibIMAP)

Userland features

  • Unix-like libc and userland
  • Shell with pipes and I/O redirection
  • On-line help system (both terminal and GUI variants)
  • Web browser (Browser)
  • C++ IDE (HackStudio)
  • Desktop synthesizer (Piano)
  • E-mail client (Mail)
  • Various desktop apps & games
  • Color themes

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.

How do I build and run this?

See the SerenityOS build instructions

Before opening an issue

Please see the issue policy.

FAQ: Frequently Asked Questions

Get in touch

Join our Discord server: SerenityOS Discord

Author

Contributors

(And many more!) The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.