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-rwxr-xr-xscript/build/grub/payload104
1 files changed, 104 insertions, 0 deletions
diff --git a/script/build/grub/payload b/script/build/grub/payload
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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 $@