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Gunnar Beutner 8614d18956 Kernel: Use a separate timer for profiling the system 
This updates the profiling subsystem to use a separate timer to
trigger CPU sampling. This timer has a higher resolution (1000Hz)
and is independent from the scheduler. At a later time the
resolution could even be made configurable with an argument for
sys$profiling_enable() - but not today.
2021-05-14 00:35:57 +02:00
.github Meta: Pin prettier linter version 2021-05-10 00:24:05 +02:00
AK AK: Vector::resize() should initialize new slots for primitive types 2021-05-14 00:35:57 +02:00
Base Services: Add InspectorServer to reverse the direction of Inspector 2021-05-13 23:28:40 +02:00
Documentation Documentation: Add Alpine Linux build instructions 2021-05-12 08:30:02 +01:00
Kernel Kernel: Use a separate timer for profiling the system 2021-05-14 00:35:57 +02:00
Meta CMake: Make missing medium icon a FATAL_ERROR 2021-05-13 23:45:50 +02:00
Ports Ports: Add missing dependencies for openttd 2021-05-12 08:37:07 +01:00
Tests AK: Introduce adopt_ref_if_nonnull(..) to aid in Kernel OOM hardening 2021-05-13 08:29:01 +02:00
Toolchain Toolchain+Ports: Skip link tests for libstdc++v3 2021-05-09 15:35:01 +02:00
Userland Profiler: Let the user ignore context switches 2021-05-14 00:35:57 +02:00
.clang-format Meta: Update .clang-format to not indent nested namespaces 2020-03-14 10:10:21 +01:00
.gitattributes Meta: Add .gitattributes file 2020-07-30 17:07:40 +02:00
.gitignore Meta: Add basic Zsh completions for serenity.sh 2021-04-22 09:55:48 +02:00
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore Meta: Add lint-prettier.sh 2020-12-27 21:25:27 +01:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
CMakeLists.txt CMake: Fix message levels for error conditions during configuration 2021-05-13 18:52:48 +02:00
CONTRIBUTING.md Meta: Add "Human language policy" to CONTRIBUTING.md 2021-05-05 23:15:08 +02:00
LICENSE Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
README.md Meta: Fix broken FAQ link in README 2021-05-09 09:15:56 +02:00

README.md

SerenityOS

Graphical Unix-like operating system for x86 computers.

Build status Fuzzing Status 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 0f85753.png

Kernel features

  • x86 (32-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)
  • GUI toolkit (LibGUI)
  • Cross-process communication library (LibIPC)
  • HTML/CSS engine (LibWeb)
  • JavaScript engine (LibJS)
  • Markdown (LibMarkdown)
  • Audio (LibAudio)
  • 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 (LibThread)
  • Transport Layer Security (LibTLS)
  • HTTP and HTTPS (LibHTTP)

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)
  • IRC client
  • Desktop synthesizer (Piano)
  • 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

IRC: #serenityos on the Freenode IRC network.

Discord: 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.