Hello-cosmo

A makefile project to demonstrate building a portable Hello World executable with Cosmopolitan Libc

Building

Linux

$ make

MacOS

$ brew install x86_64-elf-gcc
$ make CC=x86_64-elf-gcc OBJCOPY=x86_64-elf-objcopy

Windows

See https://justine.lol/cosmopolitan/windows-compiling.html

Running

$ ./hello.com

Note: Running with ZSH

ZSH does not currently work, you'll see the following error:

zsh: exec format error: ./hello.com

You need to run with Bash until a pending fix is merged upstream:

$ bash -c './hello.com'