1FROM ubuntu:19.04
2
3# Dependencies to get the git sources and go binaries
4RUN apt-get update && apt-get install -y  --no-install-recommends \
5        ca-certificates \
6        curl \
7        git \
8        rsync \
9    && apt-get clean \
10    && rm -rf /var/lib/apt/lists/*
11
12# Get the git sources. If not cached, this takes O(5 minutes).
13WORKDIR /git
14RUN git config --global advice.detachedHead false
15# Linux Kernel: Released 27 Jan 2020
16RUN git clone --branch v5.5 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
17# GNU C library: Released 01 Feb 2020 (we should try to get a secure way to clone this)
18RUN git clone --branch release/2.31/master --depth 1 git://sourceware.org/git/glibc.git
19
20# Get Go
21ENV GOLANG_VERSION 1.13.7
22ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
23ENV GOLANG_DOWNLOAD_SHA256 b3dd4bd781a0271b33168e627f7f43886b4c5d1c794a4015abf34e99c6526ca3
24
25RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
26    && echo "$GOLANG_DOWNLOAD_SHA256  golang.tar.gz" | sha256sum -c - \
27    && tar -C /usr/local -xzf golang.tar.gz \
28    && rm golang.tar.gz
29
30ENV PATH /usr/local/go/bin:$PATH
31
32# Linux and Glibc build dependencies and emulator
33RUN apt-get update && apt-get install -y  --no-install-recommends \
34        bison gawk make python3 \
35        gcc gcc-multilib \
36        gettext texinfo \
37        qemu-user \
38    && apt-get clean \
39    && rm -rf /var/lib/apt/lists/*
40# Cross compilers (install recommended packages to get cross libc-dev)
41RUN apt-get update && apt-get install -y \
42        gcc-aarch64-linux-gnu       gcc-arm-linux-gnueabi     \
43        gcc-mips-linux-gnu          gcc-mips64-linux-gnuabi64 \
44        gcc-mips64el-linux-gnuabi64 gcc-mipsel-linux-gnu      \
45        gcc-powerpc64-linux-gnu     gcc-powerpc64le-linux-gnu \
46	gcc-riscv64-linux-gnu                                 \
47        gcc-s390x-linux-gnu         gcc-sparc64-linux-gnu     \
48    && apt-get clean \
49    && rm -rf /var/lib/apt/lists/*
50
51# Let the scripts know they are in the docker environment
52ENV GOLANG_SYS_BUILD docker
53WORKDIR /build
54ENTRYPOINT ["go", "run", "linux/mkall.go", "/git/linux", "/git/glibc"]
55