mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 10:15:57 +01:00
2f413958b0
Only shallow clone the Linux kernel for now Saner defaults for ./configure: * ./configure only gets gem5 * ./configure -g only gets gem5 * ./configure -qg both
148 lines
3.7 KiB
Bash
Executable File
148 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eu
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interactive_pkgs=libsdl2-dev
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gem5=false
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gem5_given=false
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qemu=true
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qemu_given=false
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submodules_dir=submodules
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submodules=buildroot
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y=
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while getopts gpqt OPT; do
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case "$OPT" in
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g)
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gem5_given=true
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;;
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p)
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submodules="${submodules} parsec-benchmark"
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;;
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q)
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qemu_given=true
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;;
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t)
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interactive_pkgs=
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y=-y
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;;
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esac
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done
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shift $(($OPTIND - 1))
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if "$gem5_given" && ! "$qemu_given"; then
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qemu=false
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fi
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if "$gem5_given"; then
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gem5=true
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fi
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## apt-get
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pkgs="\
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automake \
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bc \
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build-essential \
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coreutils \
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cpio \
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expect \
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git \
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moreutils \
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tmux \
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unzip \
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vinagre \
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wget \
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"
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if "$gem5"; then
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pkgs="$pkgs \
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ccache \
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gcc-aarch64-linux-gnu \
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gcc-arm-linux-gnueabi \
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libgoogle-perftools-dev \
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protobuf-compiler \
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python-dev \
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python-pip \
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scons \
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"
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fi
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command -v apt-get >/dev/null 2>&1 || {
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cat <<EOF
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apt-get not found. You're on your own for installing dependencies.
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On Ubuntu they are:
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$pkgs
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EOF
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exit 0
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}
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# Without this started failing in kernel 4.15 with:
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# Makefile:932: *** "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel". Stop.
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pkgs="$pkgs libelf-dev"
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# https://stackoverflow.com/questions/20010199/determining-if-a-process-runs-inside-lxc-docker
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if [ -f /.dockerenv ]; then
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mysudo=
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# https://askubuntu.com/questions/496549/error-you-must-put-some-source-uris-in-your-sources-list
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sed -Ei 's/^# deb-src/deb-src/' /etc/apt/sources.list
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y=-y
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else
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mysudo=sudo
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fi
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$mysudo apt-get update $y
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# Building SDL for QEMU in Buildroot was rejected upstream because it adds many dependencies:
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# https://patchwork.ozlabs.org/patch/770684/
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# We are just using the host SDL for now, if it causes too much problems we might remove it.
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# libsdl2-dev needs to be installed separatedly from sudo apt-get build-dep qemu
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# because Ubuntu 16.04's QEMU uses SDL 1.
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$mysudo apt-get install $y \
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$pkgs \
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$interactive_pkgs \
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;
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if "$qemu"; then
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$mysudo apt-get build-dep $y qemu
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fi
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if "$gem5"; then
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# Generate graphs of config.ini under m5out.
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pip install --user pydot
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fi
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## Submodules
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if "$qemu"; then
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submodules="${submodules} qemu"
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fi
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if "$gem5"; then
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submodules="${submodules} gem5"
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fi
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submodules="$(for submodule in ${submodules}; do printf "${submodules_dir}/${submodule} "; done)"
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# == Shallow cloning.
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#
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# TODO Ideally we should shallow clone --depth 1 all of them.
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#
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# However, most git servers out there are crap or craply configured
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# and don't allow shallow cloning except for branches.
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#
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# So for now, let's shallow clone only the Linux kernel, which has by far
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# the largest .git repo history, and full clone the others.
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#
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# Then we will maintain a GitHub Linux kernel mirror / fork that always has a
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# lkmc branch, and point to it, so that it will always succeed.
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#
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# See also:
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#
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# * https://stackoverflow.com/questions/3489173/how-to-clone-git-repository-with-specific-revision-changeset
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# * https://stackoverflow.com/questions/2144406/git-shallow-submodules/47374702#47374702
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# * https://unix.stackexchange.com/questions/338578/why-is-the-git-clone-of-the-linux-kernel-source-code-much-larger-than-the-extrac
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#
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# == Other nice git options for when distros move to newer Git
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#
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# Currently not on Ubuntu 16.04:
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#
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# `--progress`: added on Git 2.10:
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#
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# * https://stackoverflow.com/questions/32944468/how-to-show-progress-for-submodule-fetching
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# * https://stackoverflow.com/questions/4640020/progress-indicator-for-git-clone
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#
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# `--jobs"`: https://stackoverflow.com/questions/26957237/how-to-make-git-clone-faster-with-multiple-threads/52327638#52327638
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#
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git submodule update --init --recursive -- ${submodules}
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git submodule update --depth 1 --init --recursive -- "${submodules_dir}/linux"
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