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99 lines
2.0 KiB
99 lines
2.0 KiB
3 years ago
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# Copyright 1999-2021 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=7
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DESCRIPTION="Grub2 built as a PV grub per the Xen PV Boot Protocol"
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HOMEPAGE="https://blog.xenproject.org/2015/01/07/using-grub-2-as-a-bootloader-for-xen-pv-guests/"
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SRC_URI=""
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LICENSE="BSD-2"
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SLOT="0"
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KEYWORDS="~amd64"
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IUSE="pvh"
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DEPEND="sys-boot/grub:2=[grub_platforms_xen]
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pvh? ( >=sys-boot/grub-2.04:2=[grub_platforms_xen-pvh] )
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app-emulation/xen-tools:="
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RDEPEND="${DEPEND}"
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S="${WORKDIR}"
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RESTRICT="binchecks strip test"
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src_configure() {
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:
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}
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src_compile() {
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cat > "${S}/grub-bootstrap.cfg" <<- EOF || die
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normal (memdisk)/grub.cfg
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EOF
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cat > "${S}/grub.cfg" <<- EOF || die
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if search -s -f /boot/xen/pvboot-x86_64.elf ; then
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echo "Chainloading (${root})/boot/xen/pvboot-x86_64.elf"
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multiboot "/boot/xen/pvboot-x86_64.elf"
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boot
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fi
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if search -s -f /xen/pvboot-x86_64.elf ; then
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echo "Chainloading (${root})/xen/pvboot-x86_64.elf"
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multiboot "/xen/pvboot-x86_64.elf"
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boot
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fi
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if search -s -f /boot/grub/grub.cfg ; then
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echo "Reading (${root})/boot/grub/grub.cfg"
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configfile /boot/grub/grub.cfg
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fi
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if search -s -f /grub/grub.cfg ; then
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echo "Reading (${root})/grub/grub.cfg"
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configfile /grub/grub.cfg
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fi
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EOF
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tar cf memdisk.tar grub.cfg || die "failed to tar"
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local grub_mkimage=grub-mkimage
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if type grub2-mkimage &> /dev/null; then
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grub_mkimage=grub2-mkimage
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fi
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local args=(
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"${grub_mkimage}"
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-O x86_64-xen
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-c grub-bootstrap.cfg
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-m memdisk.tar
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-o grub-x86_64-xen.bin
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/usr/lib/grub/x86_64-xen/*.mod
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)
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echo "${args[@]}"
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"${args[@]}" || die "failed to grub-mkimage"
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if use pvh; then
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local args=(
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"${grub_mkimage}"
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-O i386-xen_pvh
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-c grub-bootstrap.cfg
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-m memdisk.tar
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-o grub-i386-xen_pvh.bin
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/usr/lib/grub/i386-xen_pvh/*.mod
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)
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echo "${args[@]}"
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"${args[@]}" || die "failed to grub-mkimage"
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fi
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}
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src_install() {
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exeinto /usr/libexec/xen/bin
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doexe grub-x86_64-xen.bin
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if use pvh; then
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doexe grub-i386-xen_pvh.bin
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fi
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}
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