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ACPI entity definitions form a tree whose roots are a sequence of pre-defined namespace objects. The parser stores all AML entities using a space-optimized structure (Object). These objects are organized into a tree via the ObjectTree structure. Instead of storing pointers to other objects (i.e. siblings, children or parent), objects use uint32 indices to objects managed by the ObjectTree. This has the nice advantage of reducing the memory requirements for our tree in half when running on 64-bits (4-bytes per index vs 8-bytes per pointer) while also allowing us to recycle objects that are explicitly freed by the parser.
gopher-os
The goal of this project is to build a 64-bit POSIX-compliant tick-less kernel with a Linux-compatible syscall implementation using Go.
This project is not about building yet another OS but rather exists to serve as proof that Go is indeed a suitable tool for writing low level code that runs at ring-0.
Note: This project is still in the early stages of development and is not yet
in a usable state. In fact, if you build the ISO and boot it, the kernel will
eventually panic with a Kmain returned error.
To find out more about the current project status and feature roadmap take a look at the status page.
Building and running gopher-os
TLDR version: make run-qemu or make run-vbox.
A detailed guide about building, running and debugging gopher-os on Linux/OSX as well as the list of supported boot command line options are available here.
How does it look?
80x25 (stadard 8x16 font):
1024x768 (10x18 font):
2560x1600 (14x28 font):
Contributing
gopher-os is Open Source. Feel free to contribute! To get started take a look at the contributing guide.
Licence
gopher-os is distributed under the MIT license.