ruyi-build-qemu-inner

#!/bin/bash

set -e

build_flavor="$1"
ARCH="${2:-amd64}"
build_variants="${3:-both}"

case "$build_flavor" in
upstream)
    P="qemu-8.2.0"
    PV="8.2.0"
    RUYI_DATESTAMP=20240128
    srcfile="${P}.tar.xz"
    SRC_URI="https://download.qemu.org/$srcfile"
    pkgversion="RuyiSDK $RUYI_DATESTAMP"
    ;;
xthead)
    P="qemu-6.1.0"
    PV="6.1.0"
    RUYI_DATESTAMP=20231207
    thead_commit_hash=03813c9fe8
    srcfile="qemu-xthead-$PV-g$thead_commit_hash.tar.zst"
    SRC_URI="https://mirror.iscas.ac.cn/ruyisdk/dist/$srcfile"
    pkgversion="T-Head commit $thead_commit_hash, RuyiSDK $RUYI_DATESTAMP"
    ;;
*)
    echo "usage: ruyi-build-qemu <upstream|xthead> [arch] [both|user|system]" >&2
    exit 1
    ;;
esac

case "$ARCH" in
amd64)
	# we're compiling from amd64
	CROSS_COMPILE_PREFIX=""
	;;
arm64)
	CROSS_COMPILE_PREFIX="aarch64-linux-gnu-"
	;;
riscv64)
	CROSS_COMPILE_PREFIX="riscv64-linux-gnu-"
	;;
*)
	echo "invalid ARCH: choices are amd64, arm64 or riscv64" >&2
	exit 1
	;;
esac

case "$build_variants" in
both)
	BUILD_USER=true
	BUILD_SYSTEM=true
	;;
user)
	BUILD_USER=true
	BUILD_SYSTEM=false
	;;
system)
	BUILD_USER=false
	BUILD_SYSTEM=true
	;;
*)
	echo "invalid build variants: choices are user, system or both (default)" >&2
	exit 1
	;;
esac

USER_TARGETS="riscv32-linux-user,riscv64-linux-user"

USER_TARGET_EXES=(
    qemu-riscv32
    qemu-riscv64
)

SYSTEM_TARGETS="riscv32-softmmu,riscv64-softmmu"

SYSTEM_TARGET_EXES=(
    qemu-system-riscv32
    qemu-system-riscv64
)

INSTALL_ROOT=/tmp/prefix
INSTALL_ROOT_USER="$INSTALL_ROOT/qemu-user-riscv-$build_flavor-$PV.ruyi-$RUYI_DATESTAMP"
INSTALL_ROOT_SYSTEM="$INSTALL_ROOT/qemu-system-riscv-$build_flavor-$PV.ruyi-$RUYI_DATESTAMP"

COMMON_CONFIG_ARGS=(
    --disable-docs
    --with-pkgversion="$pkgversion"
)

if [[ -n $CROSS_COMPILE_PREFIX ]]; then
	COMMON_CONFIG_ARGS+=( --cross-prefix="$CROSS_COMPILE_PREFIX" )
fi

# static-pie breaks the xthead qemu, because apparently too much TLS is used
# likely due to VLEN=1024 pushing the CPU state size too high
STATIC_BUILD_CONFIG_ARGS=( --static )
if [[ $build_flavor == xthead ]]; then
    STATIC_BUILD_CONFIG_ARGS+=( --disable-pie )
fi

QEMU_SYSTEM_CONFIG_ARGS=(
	--disable-gnutls  # only 3.6.13 in ubuntu:20.04 but wants >=3.6.14
	--disable-nettle  # not ubiquitous
	# no static libs in ubuntu:20.04, not ubiquitous on various distros in case
	# of dynamic linking (which is currently the case for qemu-system builds),
	# other build failures, or just too much hassle to support for now
	# (will try to re-add if requested)
	--disable-bpf  # no ubiquitously supported soversion
	--disable-curl  # many indirect deps of libcurl don't have static libs available
	--disable-gcrypt
	--disable-libiscsi
	--disable-libnfs
	--disable-libssh  # problems with gssapi libs
	--disable-libudev
	--disable-opengl  # epoxy, GL, virglrenderer etc.
	--disable-rbd
	--disable-rdma
	--disable-selinux
	--disable-vnc-jpeg  # no ubiquitously supported soversion
	--disable-vnc-sasl
	--disable-xkbcommon  # no static lib
)

pushd /tmp
    wget "$SRC_URI"
    tar xf "$srcfile"
popd

SRC_DIR="/tmp/${srcfile%.tar.*}"

if "$BUILD_USER"; then
mkdir /tmp/build-user
pushd /tmp/build-user
    "$SRC_DIR"/configure "${COMMON_CONFIG_ARGS[@]}" \
        "${STATIC_BUILD_CONFIG_ARGS[@]}" \
        --prefix="$INSTALL_ROOT_USER" \
        --target-list="$USER_TARGETS"
    ninja install

    # firmware is unneeded in the static-user build
    rm -rf "$INSTALL_ROOT_USER/share"
popd
fi

if "$BUILD_SYSTEM"; then
mkdir /tmp/build-sys
pushd /tmp/build-sys
    "$SRC_DIR"/configure "${COMMON_CONFIG_ARGS[@]}" \
        "${QEMU_SYSTEM_CONFIG_ARGS[@]}" \
        --prefix="$INSTALL_ROOT_SYSTEM" \
        --target-list="$SYSTEM_TARGETS"
    ninja install
popd
fi

pushd "$INSTALL_ROOT"
    "$BUILD_USER" && \
    tar --zstd -cvf "/out/qemu-user-riscv-$build_flavor-$PV.ruyi-$RUYI_DATESTAMP.$ARCH.tar.zst" \
        "qemu-user-riscv-$build_flavor-$PV.ruyi-$RUYI_DATESTAMP"
    "$BUILD_SYSTEM" && \
    tar --zstd -cvf "/out/qemu-system-riscv-$build_flavor-$PV.ruyi-$RUYI_DATESTAMP.$ARCH.tar.zst" \
        "qemu-system-riscv-$build_flavor-$PV.ruyi-$RUYI_DATESTAMP"
popd