eclass/(dist-)kernel-*.eclass: drop installkernel-gentoo-7

because we drop the generation of the initrd/uki here
we can remove KERNEL_IUSE_SECUREBOOT since this is now
exactly the same as KERNEL_IUSE_MODULES_SIGN

Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>

eclass/dist-kernel-utils.eclass

@@ -12,13 +12,6 @@
 # This eclass provides various utility functions related to Distribution
 # Kernels.
 
-# @ECLASS_VARIABLE: KERNEL_IUSE_SECUREBOOT
-# @PRE_INHERIT
-# @DEFAULT_UNSET
-# @DESCRIPTION:
-# If set to a non-null value, inherits secureboot.eclass
-# and allows signing of generated kernel images.
-
 # @ECLASS_VARIABLE: KERNEL_EFI_ZBOOT
 # @DEFAULT_UNSET
 # @DESCRIPTION:
@@ -35,43 +28,6 @@ esac
 
 inherit toolchain-funcs
 
-if [[ ${KERNEL_IUSE_SECUREBOOT} ]]; then
-	inherit secureboot
-fi
-
-# @FUNCTION: dist-kernel_build_initramfs
-# @USAGE: <output> <version>
-# @DESCRIPTION:
-# Build an initramfs for the kernel.  <output> specifies the absolute
-# path where initramfs will be created, while <version> specifies
-# the kernel version, used to find modules.
-#
-# Note: while this function uses dracut at the moment, other initramfs
-# variants may be supported in the future.
-dist-kernel_build_initramfs() {
-	debug-print-function ${FUNCNAME} "${@}"
-
-	[[ ${#} -eq 2 ]] || die "${FUNCNAME}: invalid arguments"
-	local output=${1}
-	local version=${2}
-
-	local rel_image_path=$(dist-kernel_get_image_path)
-	local image=${output%/*}/${rel_image_path##*/}
-
-	local args=(
-		--force
-		# if uefi=yes is used, dracut needs to locate the kernel image
-		--kernel-image "${image}"
-
-		# positional arguments
-		"${output}" "${version}"
-	)
-
-	ebegin "Building initramfs via dracut"
-	dracut "${args[@]}"
-	eend ${?} || die -n "Building initramfs failed"
-}
-
 # @FUNCTION: dist-kernel_get_image_path
 # @DESCRIPTION:
 # Get relative kernel image path specific to the current ${ARCH}.
@@ -123,26 +79,6 @@ dist-kernel_install_kernel() {
 	local image=${2}
 	local map=${3}
 
-	if has_version "<=sys-kernel/installkernel-gentoo-7"; then
-		# if dracut is used in uefi=yes mode, initrd will actually
-		# be a combined kernel+initramfs UEFI executable.  we can easily
-		# recognize it by PE magic (vs cpio for a regular initramfs)
-		local initrd=${image%/*}/initrd
-		local magic
-		[[ -s ${initrd} ]] && read -n 2 magic < "${initrd}"
-		if [[ ${magic} == MZ ]]; then
-			einfo "Combined UEFI kernel+initramfs executable found"
-			# install the combined executable in place of kernel
-			image=${initrd%/*}/uki.efi
-			mv "${initrd}" "${image}" || die
-
-			if [[ ${KERNEL_IUSE_SECUREBOOT} ]]; then
-				# Ensure the uki is signed if dracut hasn't already done so.
-				secureboot_sign_efi_file "${image}"
-			fi
-		fi
-	fi
-
 	ebegin "Installing the kernel via installkernel"
 	# note: .config is taken relatively to System.map;
 	# initrd relatively to bzImage
@@ -159,10 +95,6 @@ dist-kernel_install_kernel() {
 # The function will determine whether <kernel-dir> is actually
 # a dist-kernel, and whether initramfs was used.
 #
-# With sys-kernel/installkernel-systemd, or version 8 or greater of
-# sys-kernel/installkernel-gentoo, the generation of the initrd via dracut
-# is handled by kernel-install instead.
-#
 # This function is to be used in pkg_postinst() of ebuilds installing
 # kernel modules that are included in the initramfs.
 dist-kernel_reinstall_initramfs() {
@@ -180,16 +112,6 @@ dist-kernel_reinstall_initramfs() {
 		return
 	fi
 
-	if has_version "<=sys-kernel/installkernel-gentoo-7"; then
-		local initramfs_path=${image_path%/*}/initrd
-		if [[ ! -f ${initramfs_path} && ! -f ${initramfs_path%/*}/uki.efi ]]; then
-			einfo "No initramfs or uki found at ${image_path}"
-			return
-		fi
-
-		dist-kernel_build_initramfs "${initramfs_path}" "${ver}"
-	fi
-
 	dist-kernel_install_kernel "${ver}" "${image_path}" \
 		"${kernel_dir}/System.map"
 }

eclass/kernel-build.eclass

@@ -30,9 +30,6 @@ _KERNEL_BUILD_ECLASS=1
 
 PYTHON_COMPAT=( python3_{10..12} )
 if [[ ${KERNEL_IUSE_MODULES_SIGN} ]]; then
-	# If we have enabled module signing IUSE
-	# then we can also enable secureboot IUSE
-	KERNEL_IUSE_SECUREBOOT=1
 	inherit secureboot
 fi
 
@@ -56,10 +53,10 @@ IUSE="+strip"
 # @PRE_INHERIT
 # @DEFAULT_UNSET
 # @DESCRIPTION:
-# If set to a non-null value, adds IUSE=modules-sign and required
-# logic to manipulate the kernel config while respecting the
-# MODULES_SIGN_HASH, MODULES_SIGN_CERT, and MODULES_SIGN_KEY  user
-# variables.
+# If set to a non-null value, inherits secureboot.eclass, adds
+# IUSE=modules-sign and required logic to manipulate the kernel
+# config while respecting the MODULES_SIGN_HASH, MODULES_SIGN_CERT,
+# and MODULES_SIGN_KEY  user variables.
 
 # @ECLASS_VARIABLE: MODULES_SIGN_HASH
 # @USER_VARIABLE
@@ -381,7 +378,7 @@ kernel-build_src_install() {
 	dosym "../../../${kernel_dir}" "/lib/modules/${module_ver}/build"
 	dosym "../../../${kernel_dir}" "/lib/modules/${module_ver}/source"
 
-	if [[ ${KERNEL_IUSE_SECUREBOOT} ]]; then
+	if [[ ${KERNEL_IUSE_MODULES_SIGN} ]]; then
 		secureboot_sign_efi_file "${image}"
 	fi
 

eclass/kernel-install.eclass

@@ -63,16 +63,15 @@ RESTRICT+="
 _IDEPEND_BASE="
 	!initramfs? (
 		|| (
-			sys-kernel/installkernel-gentoo
-			sys-kernel/installkernel-systemd
+			>=sys-kernel/installkernel-gentoo-8
+			>=sys-kernel/installkernel-systemd-2-r5
 		)
 	)
 	initramfs? (
 		>=sys-kernel/dracut-059-r4
 		|| (
-			<=sys-kernel/installkernel-gentoo-7
 			>=sys-kernel/installkernel-gentoo-8[dracut(-)]
-			sys-kernel/installkernel-systemd
+			>=sys-kernel/installkernel-systemd-2-r5
 		)
 	)
 "
@@ -543,14 +542,11 @@ kernel-install_pkg_pretend() {
 		ewarn "for your hardware to work.  If in doubt, it is recommended"
 		ewarn "to pause or abort the build process and install it before"
 		ewarn "resuming."
-
-		if use initramfs; then
-			elog
-			elog "If you decide to install linux-firmware later, you can rebuild"
-			elog "the initramfs via issuing a command equivalent to:"
-			elog
-			elog "    emerge --config ${CATEGORY}/${PN}:${SLOT}"
-		fi
+		elog
+		elog "If you decide to install linux-firmware later, you can rebuild"
+		elog "the initramfs via issuing a command equivalent to:"
+		elog
+		elog "    emerge --config ${CATEGORY}/${PN}:${SLOT}"
 	fi
 
 	if ! use initramfs && ! has_version "${CATEGORY}/${PN}[-initramfs]"; then
@@ -633,13 +629,9 @@ kernel-install_extract_from_uki() {
 # @FUNCTION: kernel-install_install_all
 # @USAGE: <ver>
 # @DESCRIPTION:
-# Build an initramfs for the kernel if required and install the kernel.
-# This is called from pkg_postinst() and pkg_config().  <ver> is the
-# full kernel version.
-#
-# With sys-kernel/installkernel-systemd, or version 8 or greater of
-# sys-kernel/installkernel-gentoo, the generation of the initrd via dracut
-# is handled by kernel-install instead.
+# Install the kernel, initramfs/uki generation is optionally handled by
+# installkernel. This is called from pkg_postinst() and pkg_config().
+# <ver> is the full kernel version.
 kernel-install_install_all() {
 	debug-print-function ${FUNCNAME} "${@}"
 
@@ -673,13 +665,6 @@ kernel-install_install_all() {
 	while :; do
 		nonfatal mount-boot_check_status || break
 
-		if use initramfs && has_version "<=sys-kernel/installkernel-gentoo-7"; then
-			# putting it alongside kernel image as 'initrd' makes
-			# kernel-install happier
-			nonfatal dist-kernel_build_initramfs \
-				"${image_dir}/initrd" "${module_ver}" || break
-		fi
-
 		nonfatal dist-kernel_install_kernel "${module_ver}" \
 			"${image_path}" "${kernel_dir}/System.map" || break
 
@@ -743,7 +728,7 @@ kernel-install_pkg_prerm() {
 kernel-install_pkg_postrm() {
 	debug-print-function ${FUNCNAME} "${@}"
 
-	if [[ -z ${ROOT} && ! ${KERNEL_IUSE_GENERIC_UKI} ]] && use initramfs; then
+	if [[ -z ${ROOT} && ! ${KERNEL_IUSE_GENERIC_UKI} ]]; then
 		local dir_ver=${PV}${KV_LOCALVERSION}
 		local kernel_dir=${EROOT}/usr/src/linux-${dir_ver}
 		local image_path=$(dist-kernel_get_image_path)