1 files changed, 80 insertions, 0 deletions
diff --git a/script/build/coreboot/grub b/script/build/coreboot/grub
new file mode 100755
index 00000000..7f448e24
--- /dev/null
+++ b/script/build/coreboot/grub
@@ -0,0 +1,80 @@
+#!/usr/bin/env sh
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: 2014,2015,2020,2021,2023 Leah Rowe <leah@libreboot.org>
+
+[ "x${DEBUG+set}" = 'xset' ] && set -v
+set -u -e
+
+elfdir="elf/grub"
+grubcfgsdir="config/grub"
+layoutdir="/boot/grub/layouts"
+
+. "include/err.sh"
+. "${grubcfgsdir}/modules.list"
+
+main()
+{
+	handle_dependencies
+	build_keymap_configs
+	build_grub_payload
+}
+
+handle_dependencies()
+{
+	[ -d "grub/" ] || x_ ./update project repo grub
+	[ -f "grub/grub-mkstandalone" ] || build_grub_utils
+	[ -d "${elfdir}" ] || x_ mkdir -p "${elfdir}"
+	x_ rm -f "${elfdir}/"*
+}
+
+build_grub_utils()
+{
+	(
+	x_ cd grub/
+	[ ! -d Makefile ] || x_ make distclean
+	x_ ./bootstrap --gnulib-srcdir=gnulib/ --no-git
+	x_ ./autogen.sh
+	x_ ./configure --with-platform=coreboot
+	x_ make -j$(nproc) FS_PAYLOAD_MODULES=""
+	)
+}
+
+build_keymap_configs()
+{
+	for keylayoutfile in "${grubcfgsdir}/keymap/"*.gkb; do
+		[ -f "${keylayoutfile}" ] || continue
+		keymap="${keylayoutfile##${grubcfgsdir}/keymap/}"
+		keymap="${keymap%.gkb}"
+		x_ printf "keymap %s\n" "${keymap}" > \
+		    "${elfdir}/keymap_${keymap}.cfg"
+	done
+}
+
+build_grub_payload()
+{
+	grub/grub-mkstandalone \
+	    --grub-mkimage="grub/grub-mkimage" \
+	    -O i386-coreboot \
+	    -o "${elfdir}/grub.elf" \
+	    -d grub/grub-core/ \
+	    --fonts= --themes= --locales=  \
+	    --modules="${grub_modules}" \
+	    --install-modules="${grub_install_modules}" \
+	    "${layoutdir}/colemak.gkb=${grubcfgsdir}/keymap/colemak.gkb" \
+	    "${layoutdir}/deqwertz.gkb=${grubcfgsdir}/keymap/deqwertz.gkb" \
+	    "${layoutdir}/esqwerty.gkb=${grubcfgsdir}/keymap/esqwerty.gkb" \
+	    "${layoutdir}/frazerty.gkb=${grubcfgsdir}/keymap/frazerty.gkb" \
+	    "${layoutdir}/frdvbepo.gkb=${grubcfgsdir}/keymap/frdvbepo.gkb" \
+	    "${layoutdir}/itqwerty.gkb=${grubcfgsdir}/keymap/itqwerty.gkb" \
+	    "${layoutdir}/svenska.gkb=${grubcfgsdir}/keymap/svenska.gkb" \
+	    "${layoutdir}/trqwerty.gkb=${grubcfgsdir}/keymap/trqwerty.gkb" \
+	    "${layoutdir}/ukdvorak.gkb=${grubcfgsdir}/keymap/ukdvorak.gkb" \
+	    "${layoutdir}/ukqwerty.gkb=${grubcfgsdir}/keymap/ukqwerty.gkb" \
+	    "${layoutdir}/usdvorak.gkb=${grubcfgsdir}/keymap/usdvorak.gkb" \
+	    "${layoutdir}/usqwerty.gkb=${grubcfgsdir}/keymap/usqwerty.gkb" \
+	    "/boot/grub/grub.cfg=${grubcfgsdir}/config/grub_memdisk.cfg" \
+	    "/boot/grub/grub_default.cfg=${grubcfgsdir}/config/grub.cfg" || \
+	    err "build_grub_elf: cannot build grub payload (grub-mkstandalone)"
+}
+
+main $@