minibase

I remember simple use cases for clone() such as spawning child processes with just enough shared resources to execve(). I remember reading a lot of old emails from Torvalds about it, can't find them anymore. I used to value portability but now I believe in using Linux everywhere and for everything. I like OpenBSD too but Linux is the stable one you can build anything on. What I wanted to eventually accomplish is a 100% freestanding Linux user space with no libraries at all. Maybe boot straight into the program I want to use, just like we can pass init=/usr/bin/bash in the kernel command line. How far could this go? Using nothing but system calls it's actually possible to get a framebuffer and use software renderering to draw some graphics. I'm guessing pretty far. By starting from scratch like this it's possible to fix all the historical

The Go runtime apparently uses system calls directly. The implementation of every other programming language I know uses the C standard library. Rust has a freestanding mode which is great. I even made a crate for Linux system calls but that needs inline assembly which isn't stable yet. As for user space projects, I know this one: https://github.com/arsv/minibase I meant to start my own but replacing what already exists is a lifetime of work. Haven't had much free time these days nor the willpower to make it happen. I created a liblinux but it's incomplete: https://github.com/matheusmoreira/liblinux I also found out the Linux kernel itself has an excellent system call stubs header which they apparently use for their own tools: https://github.com/torvalds/linux/blob/master/tools/include/...