8f3f5ac8ce
If we get an NP page fault in a process, and the fault address is in the kernel address range (anywhere above 0xc0000000), we probably just need to copy the page table info over from the kernel page directory. The kernel doesn't allocate address space until it's needed, and when it does allocate some, it only puts the info in the kernel page directory, and any *new* page directories created from that point on. Existing page directories need to be updated, and that's what this patch fixes. |
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| AK | ||
| Applications | ||
| Base | ||
| Demos | ||
| DevTools/VisualBuilder | ||
| Documentation | ||
| Games | ||
| Kernel | ||
| LibC | ||
| LibCore | ||
| LibGUI | ||
| LibHTML | ||
| LibM | ||
| Meta | ||
| Ports | ||
| Servers | ||
| SharedGraphics | ||
| Shell | ||
| Toolchain | ||
| Userland | ||
| .clang-format | ||
| .gitignore | ||
| .travis.yml | ||
| LICENSE | ||
| Makefile.common | ||
| ReadMe.md | ||
Serenity
Graphical Unix-like operating system for x86 computers.
About
I always wondered what it would be like to write my own operating system, but I never took it seriously. Until now.
Serenity 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 me, for me, based on the things I like.
If you like some of the same things, you are welcome to join the project. It would be great to one day change the above to say "this is a system by us, for us, based on the things we like." :^)
I regularly post raw hacking sessions and demos on my YouTube channel.
Sometimes I write about about the system on my github.io blog.
There's also a Patreon if you would like to show some support that way.
Screenshot
Current features
- Pre-emptive multitasking
- Multithreading
- Compositing window server
- IPv4 networking with ARP, TCP, UDP and ICMP
- ext2 filesystem
- Unix-like libc and userland
- POSIX signals
- Shell with pipes and I/O redirection
- mmap()
- /proc filesystem
- Local sockets
- Pseudoterminals (with /dev/pts filesystem)
- Event loop library (LibCore)
- High-level GUI library (LibGUI)
- Visual GUI design tool
- PNG format support
- Text editor
- IRC client
- DNS lookup
- Desktop games: Minesweeper and Snake
- Ports system (needs more packages!)
- Other stuff I can't think of right now...
How do I build and run this?
Make sure you have all the dependencies installed:
sudo apt install libmpfr-dev libmpc-dev libgmp-dev e2fsprogs qemu-system-i386 qemu-utils
Go into the Toolchain/ directory and run the BuildIt.sh script. Then source the UseIt.sh script to put the i686-pc-serenity toolchain in your $PATH.
Once you've done both of those, go into the Kernel directory, then run ./makeall.sh, and if nothing breaks too much, take it for a spin by using ./run.
IRC
Come chat in #serenityos on the Freenode IRC network.
Author
- Andreas Kling - awesomekling
Contributors
- Robin Burchell - rburchell
Feel free to append yourself here if you've made some sweet contributions. :)
License
Serenity is licensed under a 2-clause BSD license.