1 files changed, 104 insertions, 0 deletions
diff --git a/script/build/grub/payload b/script/build/grub/payload
new file mode 100755
index 00000000..63849bac
--- /dev/null
+++ b/script/build/grub/payload
@@ -0,0 +1,104 @@
+#!/usr/bin/env sh
+
+#   generate GRUB ELF files (coreboot payload) and configuration files
+#
+#	Copyright (C) 2014,2015,2020,2021,2023 Leah Rowe <info@minifree.org>
+#
+#	This program is free software: you can redistribute it and/or modify
+#	it under the terms of the GNU General Public License as published by
+#	the Free Software Foundation, either version 3 of the License, or
+#	(at your option) any later version.
+#
+#	This program is distributed in the hope that it will be useful,
+#	but WITHOUT ANY WARRANTY; without even the implied warranty of
+#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#	GNU General Public License for more details.
+#
+#	You should have received a copy of the GNU General Public License
+#	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+[ "x${DEBUG+set}" = 'xset' ] && set -v
+set -u -e
+
+. "include/err.sh"
+
+grubcfgsdir="resources/grub"
+keymap=""
+
+. "${grubcfgsdir}/modules.list"
+
+main()
+{
+	printf "Creating GRUB payloads and configuration files\n"
+
+	handle_dependencies
+
+	# Separate GRUB payload per keymap to save space in ROM.
+	for keylayoutfile in ${grubcfgsdir}/keymap/*.gkb; do
+		[ -f "${keylayoutfile}" ] || continue
+		build_grub_payloads "${keylayoutfile}"
+	done
+
+	printf "Done! Check elf/grub/ to see the files.\n\n"
+}
+
+handle_dependencies()
+{
+	[ -d "grub/" ] || \
+		./fetch grub || \
+		    err "handle_dependencies: cannot fetch grub"
+	[ -f "grub/grub-mkstandalone" ] || \
+		./build grub utils || \
+		    err "handle_dependencies: cannot build grub utils"
+	[ -d "elf/grub" ] || \
+		mkdir -p elf/grub || \
+		    err "handle_dependencies: cannot mkdir elf/grub"
+	rm -f elf/grub/* || \
+	    err "handle_dependencies: cannot rm inside: elf/grub/"
+}
+
+build_grub_payloads()
+{
+	keylayoutfile=${1}
+	[ -f "${keylayoutfile}" ] || continue
+
+	keymap="${keylayoutfile##${grubcfgsdir}/keymap/}"
+	keymap="${keymap%.gkb}"
+
+	build_grub_elf "${keylayoutfile}"
+	create_grub_config
+
+	printf "Created 'elf/grub/grub_%s.elf' and configs.'\n" "${keymap}"
+}
+
+build_grub_elf()
+{
+	keylayoutfile=${1}
+
+	gcfg="/boot/grub/grub.cfg=${grubcfgsdir}"
+	gcfg="${gcfg}/config/grub_memdisk.cfg"
+	grubk="/boot/grub/layouts/${keymap}.gkb=${keylayoutfile}"
+	grub/grub-mkstandalone \
+	    --grub-mkimage="grub/grub-mkimage" \
+	    -O i386-coreboot \
+	    -o "elf/grub/grub_${keymap}.elf" \
+	    -d grub/grub-core/ \
+	    --fonts= --themes= --locales=  \
+	    --modules="${grub_modules}" \
+	    --install-modules="${grub_install_modules}" \
+	    "${gcfg}" "${grubk}" || \
+	    err "build_grub_elf: cannot build grub payload (grub-mkstandalone)"
+}
+
+create_grub_config()
+{
+	sed "s/usqwerty/${keymap}/" < "${grubcfgsdir}/config/grub.cfg" \
+	    > "elf/grub/grub_${keymap}.cfg" || \
+	    err "create_grub_config: sed failed: grub.cfg"
+	sed "s/grubtest.cfg/grub.cfg/" < "elf/grub/grub_${keymap}.cfg" \
+	    > "elf/grub/grub_${keymap}_test.cfg" || \
+	    err "create_grub_config: sed failed: grubtest.cfg"
+}
+
+main $@