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Gunnar Beutner 7236584132 Kernel: Make kernel symbols available much earlier in the boot process 
This adds a new section .ksyms at the end of the linker map, reserves
5MiB for it (which are after end_of_kernel_image so they get re-used
once MemoryManager is initialized) and then embeds the symbol map into
the kernel binary with objcopy. This also shrinks the .ksyms section to
the real size of the symbol file (around 900KiB at the moment).

By doing this we can make the symbol map available much earlier in the
boot process, i.e. even before VFS is available.
2021-07-14 23:04:34 +02:00
.github CI: Disallow spaces just before the separating colon in commit titles 2021-07-13 19:56:14 +01:00
AK AK: Avoid pagefaults when repeatedly enqueing/dequeing items in a Queue 2021-07-14 23:03:36 +02:00
Base LibWeb: Use Selectors instead of a String for :not() selectors 2021-07-14 13:31:00 +02:00
Documentation Documentation: Remove '$' character from build instruction commands 2021-07-14 19:51:23 +02:00
Kernel Kernel: Make kernel symbols available much earlier in the boot process 2021-07-14 23:04:34 +02:00
Meta Meta: Fix SPICE detection in run.sh 2021-07-14 21:17:56 +02:00
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Toolchain Toolchain: Use correct variable when deleting the QEMU tarball 2021-07-10 11:13:56 +01:00
Userland LibWeb: Remove unused HTMLTokenizer::m_input member variable 2021-07-14 23:03:36 +02:00
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README.md Meta: Add Daniel Bertalan to the contributors list :^) 2021-07-08 10:38:32 +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)
  • 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)
  • 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)

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

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.