static.rb

Demo project showing how to build small self contained static ELF binaries from mruby source files.

static.rb uses musl libc. The binary is further strip(1)ed and packed with upx(1).

Requirements

GNU make
Ubuntu based build system. Tested on Ubuntu 18.04.4 (bionic).

Usage

edit contents of 'static.rb'
run make
run ./static

Example

dev@dev:~/src/static-rb$ cat static.rb
puts "Hello, world!"
dev@dev:~/src/static-rb$ make
[ -d tmp/mruby ] || git clone git@github.com:/mruby/mruby.git tmp/mruby
Reset branch '2.1.0'
make[1]: Entering directory '/home/dev/src/static-rb/tmp/mruby'
rake
...
%< --- output trimmed for brevity---
...
make[1]: Leaving directory '/home/dev/src/static-rb/tmp/mruby'
dev@dev:~/src/static-rb$ file static
static: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, stripped
dev@dev:~/src/static-rb$ ls -lh static
-rwxrwxr-x 1 dev dev 295K May 18 18:17 static
dev@dev:~/src/static-rb$ ./static
Hello, world!

Contributing

Patches/comments/bug reports/suggestions welcome.

LICENSE

Released under MIT license.