Summary

Whoa, why would this possibly exist. This is just a static-ly compiled riscv64ima binary which allows for some basic font stuff.

If rv64ima means nothing to you, it's a much more stripped down soft float version of RISC-V which is capable of running pretty much any application and thus decreases the cost of making an emulator since you only need to worry about base instructions + atomics + muls and divs. Much simpler than supporting floats and stuff.

I'm mainly throwing this on GitHub because getting a custom Rust core+std being compiled with custom CPU features is gonna be a neat trick for me in the future. Especially static + glibc, which Rust really doesn't support.

Thus... the fact this works is kinda cool.

Using

You probably shouldn't use this. If you want to, build https://github.com/riscv/riscv-gnu-toolchain by doing:

git clone --recursive https://github.com/riscv/riscv-gnu-toolchain
cd riscv-gnu-toolchain
./configure --prefix=/opt/riscv --with-arch=rv64ima --with-abi=lp64
make -j192 linux

Then, simply go acquire freetype2, brotli, bzip2, harfbuzz, libpng, icu, zlib, and hack up the makefiles to get them to work with cross compiling. Install em all into the /opt/riscv/sysroot/usr sysroot and you should be able to actually run make in this project.

It's a lot of work, you don't want this. Why are you fuzzing your targets on RISC-V anyways? Wait, is this project about fuzzing? No, just coincidence. I just really needed RISC-V support for my... GUI application that uses fonts!