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linux-kernel-module-cheat/configure

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#!/usr/bin/env bash
set -e
interactive_pkgs=libsdl2-dev
y=''
while getopts t OPT; do
case "$OPT" in
t)
interactive_pkgs=''
y='-y'
;;
esac
done
shift $(($OPTIND - 1))
(
set -e
# Shallow clonning saves a considerable ammount of time, specially because of the linux kernel.
# However, git submodules are buggy as usual, and this is the best way i've found to get it done:
# https://stackoverflow.com/questions/2144406/git-shallow-submodules/47374702#47374702
# In particular:
# - `shallow = true` on the submodule has no effect for the non default educational branches of our submodules
# - QEMU's submodules point to commits that are neither under branches nor tags, and so `--shallow-submodules` fails
git submodule update --depth 1 --jobs 4 --init
cd qemu
git submodule update --init
) &
wait $! || git submodule update --init
pkgs="\
automake \
build-essential \
coreutils \
"
# GEM5
pkgs="$pkgs \
g++-6 \
gcc-6 \
gcc-aarch64-linux-gnu \
gcc-arm-linux-gnueabi \
libgoogle-perftools-dev \
protobuf-compiler \
"
command -v apt-get >/dev/null 2>&1 || {
cat <<EOF
apt-get not found. You're on your own for installing dependencies.
On Ubuntu they are:
$pkgs
EOF
exit 0
}
# Without this started failing in kernel 4.15 with:
# Makefile:932: *** "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel". Stop.
pkgs="$pkgs libelf-dev"
sudo apt-get update $y
# Building SDL for QEMU in Buildroot was rejected upstream because it adds many dependencies:
# https://patchwork.ozlabs.org/patch/770684/
# We are just using the host SDL for now, if it causes too much problems we might remove it.
# libsdl2-dev needs to be installed separatedly from sudo apt-get build-dep qemu
# because Ubuntu 16.04's QEMU uses SDL 1.
sudo apt-get install $y \
$pkgs \
$interactive_pkgs \
;
sudo apt-get build-dep $y qemu