only remove microcode in build/release/roms

libreboot's build system, lbmk, *is* available to use
in releases aswell (use the _src tarball), but it is
mostly intended for development, in lbmk.git

well, there's not much point wasting time / disk space
generating no-microcode roms within lbmk

they should be generated only at release time, alongside
the default ones

this patch implements that, thus speeding up the build
process and saving disk usage during development

the other alternative was to add a new option in
build/boot/roms, -m, that would opt in to removing them,
but this is extra complexity for something that is ill
advised and only provided to appease certain people

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 64 insertions, 22 deletions

diff --git a/script/build/release/roms b/script/build/release/roms
index 572ceca2..fa27c031 100755
--- a/script/build/release/roms
+++ b/script/build/release/roms
@@ -34,6 +34,7 @@ CONFIG_KBC1126_FIRMWARE=""
 CONFIG_INCLUDE_SMSC_SCH5545_EC_FW=""
 ifdtool="cbutils/${tree}/ifdtool"
 cbfstool="cbutils/${tree}/cbfstool"
+microcode_required="y"
 
 main()
 {
@@ -42,6 +43,7 @@ main()
 	init_check
 
 	for romdir in bin/*; do
+		[ -d "${romdir}" ] || continue
 		make_archive "${romdir}"
 	done
 
@@ -74,11 +76,25 @@ init_check()
 
 make_archive()
 {
-	romdir=${1}
-	target="${romdir##*/}"
+	builddir="${1}"
+	romdir="$(mktemp -d -t coreboot_rom.XXXXXXXXXX)" || \
+	    err "make_archive: cannot create tmpdir"
+	rm -Rf "${romdir}" || err "make_archive: can't remove tmpdir"
+	target="${builddir##*/}"
+	romdir="${romdir}/bin/${target}"
+	mkdir -p "${romdir}" || \
+	    err "make_archive: can't mkdir tmpdir"
+	cp "${builddir}"/* "${romdir}" || \
+	    err "make_archive: cannot copy ROM images directory -> ${romdir}"
 
 	echo ${target}
-	[ -d "${romdir}/" ] || continue
+
+	[ -f "resources/coreboot/${target}/target.cfg" ] || \
+		err "make_archive: ${target}: target.cfg is missing"
+
+	. "resources/coreboot/${target}/target.cfg"
+	[ "${microcode_required}" = "y" ] || \
+	    [ "${microcode_required}" = "n" ] || microcode_required="y"
 
 	CONFIG_HAVE_MRC="y"
 	CONFIG_HAVE_ME_BIN="y"
@@ -97,7 +113,8 @@ make_archive()
 
 	# remove ME/MRC/EC firmware from ROM images
 	if [ "${CONFIG_HAVE_ME_BIN}" = "y" ] || \
-	    [ "${target}" = "e6400nvidia_4mb" ]; then
+	    [ "${target}" = "e6400nvidia_4mb" ] || \
+	    [ "${microcode_required}" = "n" ]; then
 		strip_archive "${romdir}"
 	fi
 
@@ -110,15 +127,17 @@ make_archive()
 	printf "%s\n" "${projectname}" > "${romdir}/projectname" || \
 	    err "make_archive: can't create ${romdir}/projectname"
 
-	f="release/${version}/roms/${projectname}-${version}_${target##*/}"
-	tar -c "${romdir}/" | xz -9e > "${f}.tar.xz" || \
-	    err "make_archive: can't create ${f}.tar.xz"
-
-	if [ -d "${romdir}_tmp" ]; then
-		rm -Rf "${romdir}" || err "make_archive: !rm -Rf ${romdir}"
-		mv "${romdir}_tmp" "${romdir}" || \
-		    err "make_archive: !mv \"${romdir}_tmp\" \"${romdir}\""
-	fi
+	archivename="${projectname}-${version}_${target##*/}"
+	f="release/${version}/roms/${archivename}"
+	(
+	cd "${romdir%/bin/${target}}" || err "make_archive: can't cd to tmpdir"
+	tar -c "bin/${target}/" | xz -9e > "${archivename}.tar.xz" || \
+	    err "make_archive:cant make ${projectname}-${version}_${target##*/}"
+	)
+	cp "${romdir%/bin/${target}}/${archivename}.tar.xz" "${f}.tar.xz" || \
+	    err "make_archive: can't copy tarball"
+	rm -Rf "${romdir%/bin/${target}}" || \
+	    err "make_archive: can't delete tmpdir"
 }
 
 strip_archive()
@@ -131,10 +150,17 @@ strip_archive()
 	./build coreboot utils ${tree} || \
 	    err "strip_archive: coreboot/${tree}: can't build utils"
 
-	# dirty hack, to reduce disk io later
-	# rather than using /tmp, which might not be tmpfs
-	rm -Rf "${romdir}_tmp" || err "strip_archive: !rm -Rf ${romdir}_tmp"
-	mkdir "${romdir}_tmp" || err "strip_archive: !mkdir ${romdir}_tmp"
+	if [ "${microcode_required}" = "n" ]; then
+		for romfile in "${romdir}"/*.rom; do
+			[ -f "${romfile}" ] || continue
+			strip_ucode "${romfile}"
+		done
+		for romfile in "${romdir}"/*.tmprom; do
+			[ -f "${romfile}" ] || continue
+			mv "${romfile}" "${romfile%.tmprom}.rom" || \
+			    err "can't make no-u rom: ${romfile%.tmprom}.rom"
+		done
+	fi
 
 	# Hash the rom before removing blobs
 	rm -f "${romdir}/blobhashes" || \
@@ -149,10 +175,30 @@ strip_archive()
 	)
 
 	for romfile in "${romdir}"/*.rom; do
+		[ -f "${romfile}" ] || continue
 		strip_rom_image "${romfile}"
 	done
 }
 
+strip_ucode()
+{
+	romfile=${1}
+
+	_newrom_b="${romfile%.rom}_nomicrocode.tmprom"
+	cp "${romfile}" "${_newrom_b}" || \
+	    err "strip_rom_image: cp \"${romfile}\" \"${_newrom_b}\""
+	microcode_present="y"
+	"${cbfstool}" "${_newrom_b}" remove -n \
+	    cpu_microcode_blob.bin 2>/dev/null || microcode_present="n"
+	if [ "${microcode_present}" = "n" ]; then
+		printf "REMARK: '%s' already lacks microcode\n" \
+		    "${romfile}"
+		printf "Renaming default ROM file instead.\n"
+		mv "${romfile}" "${_newrom_b}" || \
+		    err "strip_rom_image: can't rename no-u ${romfile}"
+	fi
+}
+
 strip_rom_image()
 {
 	romfile=${1}
@@ -160,12 +206,8 @@ strip_rom_image()
 	[ -f "${romfile}" ] || return 0
 
 	if [ "${CONFIG_HAVE_ME_BIN}" = "y" ]; then
-		"${ifdtool}" --nuke me "${romfile}" || \
+		"${ifdtool}" --nuke me "${romfile}" -O "${romfile}" || \
 		    err "strip_rom_images: ${romfile}: cannot nuke Intel ME"
-		mv "${romfile}" "${romdir}_tmp" || \
-		    err "strip_rom_images: !mv ${romfile} ${romdir}_tmp"
-		mv "${romfile}.new" "${romfile}" || \
-		    err "strip_rom_images: !mv ${romfile}.new ${romfile}"
 	fi
 
 	if [ "${CONFIG_HAVE_MRC}" = "y" ]; then