README.md

Examples of embedded application in minimalistic style for RISC-V in Rust

How to build

• Install Rust following instructions on this page

• rustup +nightly component add rust-src

• rustup +nightly target add riscv64gc-unknown-none-elf

• cargo install cargo-xbuild

• cargo +nightly xbuild --release

optionally

• rustup +stable component add llvm-tools-preview

• cargo install cargo-binutils

then this will work.

rustup run stable rust-objcopy -O binary target/riscv64gc-unknown-none-elf/release/step1-puts step1-puts.text

or you may use gnu binutils' objdump or llvm-objdmp with proper riscv support from your distributyon or elsewhere.

for instance you can find riscv64-unknown-elf toolchain here.

Other notes

• link.x includes a few assembler instructions to setup the stack pointer and the program counter.

• Use rvemu to run the generated codes.