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#!/usr/bin/env bash
# Copyright (c) the JPEG XL Project Authors. All rights reserved.
#
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
QEMU_RELEASE="4.1.0"
QEMU_URL="https://download.qemu.org/qemu-${QEMU_RELEASE}.tar.xz"
QEMU_ARCHS=(
aarch64
arm
i386
# TODO: Consider adding these:
# aarch64_be
# mips64el
# mips64
# mips
# ppc64
# ppc
)
# Ubuntu packages not installed that are needed to build qemu.
QEMU_BUILD_DEPS=(
libglib2.0-dev
libpixman-1-dev
flex
bison
)
set -eu -x
# Temporary files cleanup hooks.
CLEANUP_FILES=()
cleanup() {
if [[ ${#CLEANUP_FILES[@]} -ne 0 ]]; then
rm -fr "${CLEANUP_FILES[@]}"
fi
}
trap "{ set +x; } 2>/dev/null; cleanup" INT TERM EXIT
main() {
local workdir=$(mktemp -d --suffix=qemu)
CLEANUP_FILES+=("${workdir}")
apt install -y "${QEMU_BUILD_DEPS[@]}"
local qemutar="${workdir}/qemu.tar.gz"
curl --output "${qemutar}" "${QEMU_URL}"
tar -Jxf "${qemutar}" -C "${workdir}"
local srcdir="${workdir}/qemu-${QEMU_RELEASE}"
local builddir="${workdir}/build"
local prefixdir="${workdir}/prefix"
mkdir -p "${builddir}"
# List of targets to build.
local targets=""
local make_targets=()
local target
for target in "${QEMU_ARCHS[@]}"; do
targets="${targets} ${target}-linux-user"
# Build just the linux-user targets.
make_targets+=("${target}-linux-user/all")
done
cd "${builddir}"
"${srcdir}/configure" \
--prefix="${prefixdir}" \
--static --disable-system --enable-linux-user \
--target-list="${targets}"
make -j $(nproc --all || echo 1) "${make_targets[@]}"
# Manually install these into the non-standard location. This script runs as
# root anyway.
for target in "${QEMU_ARCHS[@]}"; do
cp "${target}-linux-user/qemu-${target}" "/usr/bin/qemu-${target}-static"
done
apt autoremove -y --purge "${QEMU_BUILD_DEPS[@]}"
}
main "$@"
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