Open Computers II (RISC-V Musl Linux) Hello World Rust example, made very small

Final compiled binary size: ~8KiB

• strip = true
• panic = 'abort'
• codegen-units = 1
• opt-level = 'z'
• lto = true
• build-std
• panic_immediate_abort
• #![no_main]

Resources

https://github.com/johnthagen/min-sized-rust

https://darkcoding.net/software/a-very-small-rust-binary-indeed/