This repository contains the script needed to compile bare-metal GCC for various architectures using Linux distributions. The GCC source is fetched from the release branch hence, contains all the release branch changes.
Below are the packages you'll need
-
Ubuntu or other Debian based distros
Note: On Ubuntu 20.04, the default GCC version is gcc 9.3.x which (in my test cases) brought in a lot of unneeded regressions. This was however fixed by compiling the toolchain itself with GCC 10
To install and set GCC 10 as the default compiler, you need to:
apt-get update ``` ```bash sudo apt-get install flex bison ncurses-dev texinfo gcc gperf patch libtool automake g++ libncurses5-dev gawk subversion expat libexpat1-dev python-all-dev binutils-dev bc libcap-dev autoconf libgmp-dev build-essential pkg-config libmpc-dev libmpfr-dev autopoint gettext txt2man liblzma-dev libssl-dev libz-dev mercurial wget tar gcc-10 g++-10 zstd --fix-broken --fix-missing ```
-
Arch Linux
bash sudo pacman -S base-devel clang cmake git libc++ lld lldb ninja -
Fedora
mpfr-devel gmp-devel libmpc-devel zlib-devel glibc-devel.i686 glibc-devel binutils-devel g++ texinfo bison flex cmake which clang ninja-build lld ```
Running this script is quite simple. We start by cloning this repository:
bash git clone https://github.com/KenHV/gcc-build.git gcc-build
bash ./build-gcc.sh -a <architechture>
As of now, I only support arm, arm64 and x86 (compiles for x86_64 only). This list is subject to change as I receive requests.
Keep in mind that this script contains just the bare minimum prerequisites.
- Vaisakh for writing this script.
- OS Dev Wiki for knowledge base.
- USBHost's Amazing GCC Build script for certain prerequisite dependencies.
My GCC cross-compiler builds are automated and pushed weekly i.e. on Sundays at 00:00 GMT (05:30 IST). They are pushed to:
You're more than welcome to improve the contents within this script with a pull request. Enjoy :)