An Operation System by Rust

Implementation repo: ROS

Concepts

ABI (application binary interface)

ABI is an interface between two binary program modules; often, one of these modules is a library or operating system facility, and the other is a program that is being run by a user.

• API vs. ABI

• Wikipedia - ABI
• Stackoverflow - What is an application binary interface (ABI)?

BIOS vs. UEFI

• BIOS
• UEFI

Target Specification

Target triple is used to describe the CPU architecture, the vendor, the operating system, and the ABI.

The triple has the general format <arch><sub>-<vendor>-<sys>-<abi>:

- arch = x86_64, i386, arm, thumb, mips, etc. - sub = for ex. on ARM: v5, v6m, v7a, v7m, etc. - vendor = pc, apple, nvidia, ibm, etc. - sys = none, linux, win32, darwin, cuda, etc. - abi = eabi, gnu, android, macho, elf, etc.

Reference

• Writing an OS in Rust: https://os.phil-opp.com/.
  Github: https://github.com/phil-opp/blog_os

• MIT course 6.828 - semester 2020
• xv6, Unix-like teaching OS: https://pdos.csail.mit.edu/6.828/2018/xv6/book-rev11.pdf
• 6.828 homework sample: https://github.com/SmallPond/MIT6.828_OS