coverxit / homebrew-xv6-toolchains

Homebrew repo for xv6 toolchains running on macOS 10.13 High Sierra

homebrew-xv6-toolchains

This is a brew repo for installing toolchains to run xv6 on macOS 10.13 High Sierra.

Install

brew tap coverxit/homebrew-xv6-toolchains
brew install i386-elf-gcc
brew install qemu

You then may have to modify Makefile in xv6, by first setting the TOOLPREFIX:

TOOLPREFIX = i386-elf-

and modifying CFLAGS, adding -march=i686 after -m32, which before modification, looks like:

CFLAGS = -fno-pic -static -fno-builtin -fno-strict-aliasing -O2 -Wall -MD -ggdb -m32 -Werror -fno-omit-frame-pointer

then after:

CFLAGS = -fno-pic -static -fno-builtin -fno-strict-aliasing -O2 -Wall -MD -ggdb -m32 -march=i686 -Werror -fno-omit-frame-pointer

Now you can build xv6. Enjoy!