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# Copyright 2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
DISABLE_AUTOFORMATTING="true"
DOC_CONTENTS='
nemu-xiangshan mini config HOWTO
Note: nemu-xiangshan is configurable via mconf, like the linux kernel.
Without user config, this ebuild will target minimum riscv64
You are encouraged to configure it on your own. Here are a couple of ways:
1) USE="-savedconfig" and set/unset the remaining flags to obtain the features
you want, and possibly a lot more.
2) You can create your own configuration file by doing:
FEATURES="keepwork" USE="savedconfig -*" emerge nemu-xiangshan
cd /var/tmp/portage/app-emulation/nemu-xiangshan*/work/nemu-xiangshan*
make menuconfig
Now configure nemu-xiangshan as you want. Finally save your config file:
cp config/.config /etc/portage/savedconfig/app-emulation/nemu-xiangshan-${PV}
where ${PV} is the current version. You can then run emerge again with
your configuration by doing:
USE="savedconfig" emerge nemu-xiangshan
'
inherit savedconfig readme.gentoo-r1
DESCRIPTION="NJU EMUlator, a full system x86/mips32/riscv32/riscv64 emulator for teaching"
HOMEPAGE="https://github.com/OpenXiangShan/NEMU"
LICENSE="MulanPSL-2.0"
SLOT="0"
IUSE="savedconfig"
EGIT_REPO_URI="https://github.com/OpenXiangShan/NEMU.git"
EGIT_SUBMODULES=(
ready-to-run
)
inherit git-r3
DEPEND="
sys-apps/dtc
media-libs/libsdl2
sys-libs/zlib
sys-libs/readline:=
"
RDEPEND="${DEPEND}"
PATCHES=(
"${FILESDIR}"/${PN}-disable-git-tracking.patch
"${FILESDIR}"/${PN}-add-syncconfig.patch
)
QA_PREBUILT="
usr/share/${PN}/ready-to-run/coremark-2-iteration.bin
usr/share/${PN}/ready-to-run/linux.bin
usr/share/${PN}/ready-to-run/riscv64-nemu-interpreter-dual-so
usr/share/${PN}/ready-to-run/linux-0xa0000.bin
usr/share/${PN}/ready-to-run/microbench.bin
usr/share/${PN}/ready-to-run/riscv64-nemu-interpreter-so
"
src_prepare() {
default
sed -i -e "/^CCACHE/d" scripts/build.mk || die
}
src_configure() {
export NEMU_HOME="${PWD}"
if use savedconfig; then
restore_config .config
if [[ -f .config ]]; then
ewarn "Using saved config"
else
die "No saved config, please consider generate one with 'make menuconfig'"
fi
else
elog "No saved config, seeding minimum riscv64"
cp configs/riscv64-xs_defconfig .config || die
fi
emake -j1 syncconfig < <(yes '') > /dev/null
}
src_compile() {
export NEMU_HOME="${PWD}"
emake
# TODO: require cross-compilation
# cd resource/gcpt_restore || die
# emake
}
src_install() {
dodoc README.md
dodoc -r resource/debian
dodoc -r resource/sdcard
readme.gentoo_create_doc
insinto "/usr/share/${PN}/"
rm -r ready-to-run/.git || die
doins -r ready-to-run
# Disallow stripping of prebuilt images
dostrip -x ${QA_PREBUILT}
cd build || die
for binary in $(ls -1 2>/dev/null); do
IFS='-' read -a name <<<"${binary}" || die
if [[ "${name[1]}" == 'nemu' ]]; then
newbin "${binary}" "${name[0]}-nemu-xiangshan-${name[@]:2}"
fi
done
}
pkg_postinst() {
readme.gentoo_print_elog
}
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