libreboot!

this is forked from the "libre" branch in osboot, which is itself a libre,
deblobbed fork of osboot, a blobbed up fork of libreboot

libreboot needed to be purged clean. this is the new libreboot development
repository. the old one has been abandoned

1 files changed, 454 insertions, 0 deletions

diff --git a/resources/scripts/build/boot/roms_helper b/resources/scripts/build/boot/roms_helper
new file mode 100755
index 00000000..83db0766
--- /dev/null
+++ b/resources/scripts/build/boot/roms_helper
@@ -0,0 +1,454 @@
+#!/bin/bash
+
+#  helper script: create ROM images for a given mainboard
+#
+#	Copyright (C) 2020,2021 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/>.
+#
+
+# This script assumes that the working directory is the root
+# of git or release archive
+
+[ "x${DEBUG+set}" = 'xset' ] && set -v
+set -u -e
+
+projectname="$(cat projectname)"
+
+if (( $# != 1 )); then
+	printf "Usage: ./build boot roms boardname\n"
+	printf "Example: ./build boot roms x60\n"
+	printf "Example: ./build boot roms x60 x200_8mb\n"
+	printf "Example: ./build boot roms all\n"
+	printf "You need to specify exactly 1 argument\n"
+	exit 1
+fi
+
+board="${1}"
+
+if [ ! -d "resources/coreboot/${board}" ]; then
+	printf "build/roms: Target %s does not exist in the %s build system. Skipping build.\n" "${projectname}" "${board}"
+	exit 1
+fi
+
+if [ ! -f "resources/coreboot/${board}/board.cfg" ]; then
+	printf "build/roms: Target %s does not have a board.cfg. Skipping build.\n" "${board}"
+	exit 1
+fi
+
+cbtree="undefined"
+romtype="normal" # optional parameter in board.cfg. "normal" is default
+arch="undefined"
+# Disable all payloads by default.
+# board.cfg files have to specifically enable [a] payload(s)
+payload_grub="n"
+payload_grub_withseabios="n" # seabios chainloaded from grub
+payload_grub_withtianocore="n" # tianocore chainloaded from grub
+payload_seabios="n"
+payload_seabios_withgrub="n" # i386-coreboot grub accessible from SeaBIOS boot menu
+payload_tianocore="n"
+seabios_opromloadonly="0"
+# Override the above defaults using board.cfg
+source "resources/coreboot/${board}/board.cfg"
+if [ "${cbtree}" = "undefined" ]; then
+	printf "build/roms: Target %s does not define a coreboot tree. Skipping build.\n" "${board}"
+	exit 1
+fi
+if [ "${arch}" = "undefined" ]; then
+	printf "build/roms: Target %s does not define a CPU type. Skipping build.\n" "${board}"
+	exit 1
+fi
+
+if [ "${seabios_opromloadonly}" != "0" ] && \
+		[ "${seabios_opromloadonly}" != "1" ]; then
+	seabios_opromloadonly="0"
+fi
+if [ "${payload_grub_withseabios}" = "y" ] \
+		|| [ "${payload_grub_withtianocore}" = "y" ]; then
+	payload_grub="y"
+fi
+if [ "${payload_grub_withseabios}" = "y" ]; then
+	payload_seabios="y"
+	payload_seabios_withgrub="y" # if grub-first works, then seabios-with-grub will also work
+fi
+if [ "${payload_seabios_withgrub}" = "y" ]; then
+	payload_seabios="y" # if seabios-with-grub works, then SeaBIOS-alone should also work
+fi
+# NOTE: reverse logic must not be applied. If SeaBIOS-with-GRUB works, that doesn't
+# necessarily mean GRUB-with-SeaBIOS will work nicely. for example, the board might
+# only have an add-on GPU available, where it's recommended to boot SeaBIOS first
+if [ "${payload_grub_withtianocore}" = "y" ]; then
+	payload_tianocore="y"
+fi
+if [ "${payload_grub}" != "y" ] && [ "${payload_seabios}" != "y" ] \
+		&& [ "${payload_tianocore}" != "y" ]; then
+	while true; do
+		for configfile in "resources/coreboot/${board}/config/"*; do
+			if [ -f "${configfile}" ]; then
+				printf "ERROR build/roms: Target '%s' does not define a payload. Exiting.\n" "${board}"
+				exit 1
+			fi
+		done
+		break
+	done
+fi
+
+if [ ! -f "memtest86plus/memtest" ]; then
+	./build module memtest86plus
+fi
+
+romdir="bin/${board}"
+cbdir="coreboot/${board}"
+if [ "${board}" != "${cbtree}" ]; then
+	cbdir="coreboot/${cbtree}"
+fi
+cbfstool="${cbdir}/util/cbfstool/cbfstool"
+corebootrom="${cbdir}/build/coreboot.rom"
+seavgabiosrom="payload/seabios/seavgabios.bin"
+tianocoreelf="payload/tianocore/tianocore.elf"
+
+if [ ! -d "${cbdir}" ]; then
+	./download coreboot ${cbtree}
+fi
+
+if [ "${arch}" = "x86_32" ] || [ "${arch}" = "x86_64" ]; then
+	if [ ! -d "${cbdir}/util/crossgcc/xgcc/i386-elf/" ]; then
+		(
+			cd "${cbdir}"
+			make crossgcc-i386 CPUS=$(nproc) # even for 64-bit machines, coreboot builds
+				# 32-bit ROM images, so we only need to worry about i386-elf
+		)
+	fi
+fi
+
+if [ "${arch}" != "x86_64" ]; then
+	payload_tianocore="n"
+	payload_grub_withtianocore="n"
+fi
+
+if [ ! -f "${cbfstool}" ]; then
+	./build module cbutils ${cbtree}
+fi
+
+if [ ! -f "${tianocoreelf}" ]; then
+	if [ "${payload_tianocore}" = "y" ]; then
+		./build payload tianocore
+	elif [ "${payload_grub}" = "y" ] \
+			&& [ "${payload_grub_withtianocore}" = "y" ]; then
+		./build payload tianocore
+	fi
+fi
+
+if [ ! -f "${seavgabiosrom}" ] \
+		|| [ ! -f payload/seabios/seabios_libgfxinit.elf ] \
+		|| [ ! -f payload/seabios/seabios_vgarom.elf ]; then
+	if [ "${payload_seabios}" = "y" ]; then
+		./build payload seabios
+	elif [ "${payload_grub}" = "y" ] \
+			&& [ "${payload_grub_withseabios}" = "y" ]; then
+		./build payload seabios
+	fi
+fi
+
+[ -d "${romdir}/" ] || mkdir -p "${romdir}/"
+rm -f "${romdir}"/*
+
+if [ "${payload_grub}" = "y" ] || [ "${payload_seabios_withgrub}" = "y" ]; then
+	if [ -f "payload/grub/grub_usqwerty.cfg" ]; then
+		grubrefchecksum="$(sha1sum resources/grub/config/grub.cfg)"
+		grubrefchecksum="${grubrefchecksum%  resources/grub/config/grub.cfg}"
+		grubbuildchecksum="$(sha1sum payload/grub/grub_usqwerty.cfg)"
+		grubbuildchecksum="${grubbuildchecksum%  payload/grub/grub_usqwerty.cfg}"
+		if [ "${grubrefchecksum}" != "${grubbuildchecksum}" ]; then
+			rm -Rf payload/grub/
+			printf "Changes detected to GRUB. Re-building now:\n"
+		fi
+	else
+		printf "Required GRUB payloads not yet built. Building now:\n"
+		rm -Rf payload/grub/ # just in case
+	fi
+	for keymapfile in resources/grub/keymap/*; do
+
+		if [ ! -f "${keymapfile}" ]; then
+			continue
+		fi
+
+		keymap="${keymapfile##*/}"
+		keymap="${keymap%.gkb}"
+
+		grubelf="payload/grub/grub_${keymap}.elf"
+		grubcfg="payload/grub/grub_${keymap}.cfg"
+		grubtestcfg="payload/grub/grub_${keymap}_test.cfg"
+
+		if [ ! -f "${grubelf}" ] || [ ! -f "${grubcfg}" ] || \
+				[ ! -f "${grubtestcfg}" ]; then
+			./build payload grub
+		fi
+	done
+fi
+
+# it is assumed that no other work will be done on the ROM
+# after calling this function. therefore this function is "final"
+moverom() {
+	rompath="$1"
+	newrompath="$2"
+	cuttype="$3"
+
+	printf "\nCreating new ROM image: %s\n" "${newrompath}"
+
+	if [ "${cuttype}" = "4MiB IFD BIOS region" ]; then
+		dd if=${rompath} of=${newrompath} bs=1 skip=$[$(stat -c %s ${rompath}) - 0x400000] count=4194304
+	else
+		cp ${rompath} ${newrompath}
+	fi
+
+	for romsize in 4 8 16; do
+		if [ "${cuttype}" = "${romsize}MiB ICH9 IFD NOR flash" ]; then
+			if [ ! -f "descriptors/ich9m/ich9fdgbe_${romsize}m.bin" ]; then
+				./build descriptors ich9m
+			fi
+			dd if=descriptors/ich9m/ich9fdgbe_${romsize}m.bin of=${newrompath} bs=1 count=12k conv=notrunc
+		fi
+		if [ "${cuttype}" = "${romsize}MiB ICH9 IFD NOGBE NOR flash" ]; then
+			if [ ! -f "descriptors/ich9m/ich9fdnogbe_${romsize}m.bin" ]; then
+				./build descriptors ich9m
+			fi
+			dd if=descriptors/ich9m/ich9fdnogbe_${romsize}m.bin of=${newrompath} bs=1 count=4k conv=notrunc
+		fi
+	done
+
+	if [ "${cuttype}" = "i945 laptop" ]; then
+		dd if=${newrompath} of=top64k.bin bs=1 skip=$[$(stat -c %s ${newrompath}) - 0x10000] count=64k
+		dd if=top64k.bin of=${newrompath} bs=1 seek=$[$(stat -c %s ${newrompath}) - 0x20000] count=64k conv=notrunc
+		rm -f top64k.bin
+	fi
+}
+
+# expected: configs must not specify a payload
+mkCoreboot() {
+	cbdir="${1}" # e.g. coreboot/default
+	cbcfgpath="${2}" # e.g. resources/coreboot/x200_8mb/config/libgfxinit_txtmode
+	if [ ! -f "${cbcfgpath}" ]; then
+		printf "\nmkCoreboot: Coreboot config '%s' does not exist. Skipping build.\n" \
+			"${cbcfgpath}"
+		return 0
+	fi
+	printf "%s-%s\n" "$(cat projectname)" "$(cat version)" > "${cbdir}/.coreboot-version"
+	(
+		cd "${cbdir}"
+		make distclean		
+	)
+	cp "${cbcfgpath}" "${cbdir}"/.config
+	(
+		cd "${cbdir}"
+		make -j$(nproc)
+	)
+}
+
+mkRomWithTianocoreOnly() {
+	rompath="${1}"
+	initmode="${2}"
+	if [ "${payload_tianocore}" = "y" ] && [ "${arch}" = "x86_64" ]; then
+		# do not include on 32-bit-only machines. this is 64-bit tianocore
+
+		tmprom=$(mktemp -t coreboot_rom.XXXXXXXXXX)
+		cp "${corebootrom}" "${tmprom}"
+		"${cbfstool}" "${tmprom}" add-payload -f ${tianocoreelf} -n fallback/payload -c lzma
+		moverom "${tmprom}" "${romdir}/tianocore_${board}_${initmode}.rom" "${romtype}"
+		rm -f "${tmprom}"
+	fi
+}
+
+# make a rom in /tmp/ and then print the path of that ROM
+make_seabios_rom() {
+	target_cbrom="${1}" # rom to insert seabios in. this rom won't be touched
+		# a tmpfile will be made instead
+	target_seabios_cbfs_path="${2}" # e.g. fallback/payload
+	target_opromloadonly="${3}" # 0 or 1. if 1, only load but don't execute oproms
+	target_initmode="${4}" # e.g. libgfxinit
+	cbfstool_path="${5}"
+
+	if [ "${target_initmode}" = "normal" ]; then
+		target_seabioself="payload/seabios/seabios_vgarom.elf"
+		# if normal, etc/pci-optionrom-exec will be set to 2
+	else
+		target_seabioself="payload/seabios/seabios_${target_initmode}.elf"
+		# if libgfxinit, etc/pci-optionrom-exec will be set to 2
+		# if vgarom, etc/pci-optionrom-exec will be set to 0
+	fi
+	target_seavgabios_rom="payload/seabios/seavgabios.bin"
+
+	tmprom=$(mktemp -t coreboot_rom.XXXXXXXXXX)
+
+	cp "${target_cbrom}" "${tmprom}"
+	"${cbfstool}" "${tmprom}" add-payload -f "${target_seabioself}" -n ${target_seabios_cbfs_path} -c lzma
+	"${cbfstool}" "${tmprom}" add-int -i 3000 -n etc/ps2-keyboard-spinup
+	if [ "${target_initmode}" = "normal" ] || [ "${target_initmode}" = "libgfxinit" ]; then
+		"${cbfstool}" "${tmprom}" add-int -i 2 -n etc/pci-optionrom-exec
+	elif [ "${target_initmode}" = "vgarom" ]; then
+		"${cbfstool}" "${tmprom}" add-int -i 0 -n etc/pci-optionrom-exec
+	fi # for undefined modes, don't add this integer. rely on SeaBIOS defaults
+	"${cbfstool}" "${tmprom}" add-int -i 0 -n etc/optionroms-checksum
+	"${cbfstool}" "${tmprom}" add-int -i ${target_opromloadonly} -n etc/only-load-option-roms
+
+	if [ "${target_initmode}" = "libgfxinit" ]; then
+		"${cbfstool_path}" "${tmprom}" add -f "${target_seavgabios_rom}" -n vgaroms/seavgabios.bin -t raw
+	fi
+
+	printf "%s\n" "${tmprom}"
+}
+
+# make a rom in /tmp/ and then print the path of that ROM
+make_grubrom_from_keymap() {
+	target_keymap="${1}"
+	target_cbrom="${2}"
+	cbfstool_path="${3}"
+	target_grubelf_cbfs_path="${4}" # e.g. fallback/payload
+
+	grubelf="payload/grub/grub_${target_keymap}.elf"
+	grubcfg="payload/grub/grub_${target_keymap}.cfg"
+	grubtestcfg="payload/grub/grub_${target_keymap}_test.cfg"
+
+	tmprom=$(mktemp -t coreboot_rom.XXXXXXXXXX)
+	cp "${target_cbrom}" "${tmprom}"
+
+	"${cbfstool_path}" "${tmprom}" add-payload -f "${grubelf}" -n ${target_grubelf_cbfs_path} -c lzma
+	"${cbfstool_path}" "${tmprom}" add -f "${grubcfg}" -n grub.cfg -t raw
+	"${cbfstool_path}" "${tmprom}" add -f "${grubtestcfg}" -n grubtest.cfg -t raw
+
+	printf "%s\n" "${tmprom}"
+}
+
+# Make separate ROM images with GRUB payload, for each supported keymap
+mkRomsWithGrub() {
+	tmprompath="${1}"
+	initmode="${2}"
+	displaymode="${3}"
+	firstpayloadname="${4}" # allow values: grub, seabios, seabios_withgrub, seabios_grubfirst
+
+	if [ "${payload_grub_withtianocore}" = "y" ] && [ "${firstpayloadname}" = "grub" ]; then
+		"${cbfstool}" "${tmprompath}" add-payload -f ${tianocoreelf} -n tianocore.elf -c lzma
+	fi
+
+	if [ "${payload_grub_withseabios}" = "y" ] && [ "${firstpayloadname}" = "grub" ]; then
+		mv "$(make_seabios_rom "${tmprompath}" "seabios.elf" "${seabios_opromloadonly}" "${initmode}" "${cbfstool}")" "${tmprompath}"
+	elif [ "${payload_seabios_withgrub}" ] && [ "${firstpayloadname}" != "grub" ]; then
+		mv "$(make_seabios_rom "${tmprompath}" "fallback/payload" "${seabios_opromloadonly}" "${initmode}" "${cbfstool}")" "${tmprompath}"
+		if [ "${firstpayloadname}" = "seabios_grubfirst" ]; then
+			tmpbootorder=$(mktemp -t coreboot_rom.XXXXXXXXXX)
+			printf "/rom@img/grub2\n" > "${tmpbootorder}"
+			"${cbfstool}" "${tmprompath}" add -f "${tmpbootorder}" -n bootorder -t raw
+			rm -f "${tmpbootorder}"
+			"${cbfstool}" "${tmprompath}" add-int -i 0 -n etc/show-boot-menu
+		fi
+	fi
+
+	for keymapfile in resources/grub/keymap/*; do
+
+		if [ ! -f "${keymapfile}" ]; then
+			continue
+		fi
+
+		keymap="${keymapfile##*/}"
+		keymap="${keymap%.gkb}"
+
+		grub_path_in_cbfs="fallback/payload"
+		if [ "${firstpayloadname}" != "grub" ]; then
+			grub_path_in_cbfs="img/grub2"
+		fi
+
+		tmpgrubrom="$(make_grubrom_from_keymap "${keymap}" "${tmprompath}" "${cbfstool}" "${grub_path_in_cbfs}")"
+		if [ "${initmode}" = "normal" ]; then
+			newrompath="${romdir}/${firstpayloadname}_${board}_${initmode}_${keymap}.rom"
+		else
+			newrompath="${romdir}/${firstpayloadname}_${board}_${initmode}_${displaymode}_${keymap}.rom"
+		fi
+		moverom "${tmpgrubrom}" "${newrompath}" "${romtype}"
+		rm -f "${tmpgrubrom}"
+	done
+}
+
+# Main ROM building function. This calls all other functions
+mkRoms() {
+	tianocoreRequiredDisplayMode="${1}"
+	cbcfgpath="${2}"
+	displaymode="${3}"
+	initmode="${4}"
+
+	if [ ! -f "${cbcfgpath}" ]; then
+		printf "'%s' does not exist. Skipping build for %s %s %s\n" \
+			"${cbcfgpath}" "${board}" "${displaymode}" "${initmode}"
+		return 0
+	fi
+
+	mkCoreboot "${cbdir}" "${cbcfgpath}"
+
+	if [ "${displaymode}" = "${tianocoreRequiredDisplayMode}" ]; then
+		mkRomWithTianocoreOnly "${corebootrom}" "${initmode}"
+	fi
+
+	if [ "${displaymode}" = "txtmode" ]; then
+		"${cbfstool}" "${corebootrom}" add-payload -f memtest86plus/memtest -n img/memtest -c lzma
+	fi
+
+	if [ "${payload_seabios}" = "y" ]; then
+		if [ "${payload_seabios_withgrub}" = "n" ]; then
+			tmpseabiosrom="$(make_seabios_rom "${corebootrom}" "fallback/payload" "${seabios_opromloadonly}" "${initmode}" "${cbfstool}")"
+			if [ "${initmode}" = "normal" ]; then
+				newrompath="${romdir}/seabios_${board}_${initmode}.rom"
+			else
+				newrompath="${romdir}/seabios_${board}_${initmode}_${displaymode}.rom"
+			fi
+
+			moverom "${tmpseabiosrom}" "${newrompath}" "${romtype}"
+			rm -f "${tmpseabiosrom}"
+		else
+			tmprom=$(mktemp -t coreboot_rom.XXXXXXXXXX)
+			cp "${corebootrom}" "${tmprom}"
+			mkRomsWithGrub "${tmprom}" "${initmode}" "${displaymode}" "seabios_withgrub"
+			cp "${corebootrom}" "${tmprom}"
+			mkRomsWithGrub "${tmprom}" "${initmode}" "${displaymode}" "seabios_grubfirst"
+			rm -f "${tmprom}"
+		fi
+	fi
+
+	if [ "${payload_grub}" = "y" ]; then
+		mkRomsWithGrub "${corebootrom}" "${initmode}" "${displaymode}" "grub"
+	fi
+}
+
+initmode="libgfxinit"
+tianocoreRequiredDisplayMode="corebootfb"
+for displaymode in corebootfb txtmode; do
+	cbcfgpath="resources/coreboot/${board}/config/${initmode}_${displaymode}"
+	mkRoms "${tianocoreRequiredDisplayMode}" "${cbcfgpath}" "${displaymode}" "${initmode}"
+done
+
+initmode="vgarom"
+tianocoreRequiredDisplayMode="vesafb"
+for displaymode in vesafb txtmode; do	
+	cbcfgpath="resources/coreboot/${board}/config/${initmode}_${displaymode}"
+	mkRoms "${tianocoreRequiredDisplayMode}" "${cbcfgpath}" "${displaymode}" "${initmode}"
+done
+
+initmode="normal"
+displaymode="txtmode"
+tianocoreRequiredDisplayMode="unsupported"
+cbcfgpath="resources/coreboot/${board}/config/${initmode}"
+mkRoms "${tianocoreRequiredDisplayMode}" "${cbcfgpath}" "${displaymode}" "${initmode}"
+
+(
+cd "${cbdir}"
+make distclean
+)