gojit -- pure-golang runtime code-generation

This is the result of my spending the hack day at Gophercon 2014 playing with doing JIT from golang code. This repository contains several packages:

• gojit

  Contains the basic JIT support -- allocate executable chunks of memory, and convert them into callable golang functions.

• amd64

  Contains a simplistic amd64 assembler designed for use with gojit

• bf

  Contains a just-in-time compiler for Brainfuck that demos the above packages

• gobf

  Contains a binary that provides a command-line interface to bf

Using

gobf can be fetched using

go get github.com/nelhage/gojit/gobf

And then run as gobf file.bf. For some built-in examples:

$ gobf $GOPATH/src/github.com/nelhage/gojit/bf/test/hello.bf
Hello World!
$ gobf $GOPATH/src/github.com/nelhage/gojit/bf/test/hello.bf | gobf $GOPATH/src/github.com/nelhage/gojit/bf/test/rot13.bf
Uryyb Jbeyq!

Portability

This code has been tested on darwin/amd64 and linux/amd64. It is extremely unlikely to work anywhere else.