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-rw-r--r--src/vboot/Makefile.inc14
1 files changed, 4 insertions, 10 deletions
diff --git a/src/vboot/Makefile.inc b/src/vboot/Makefile.inc
index 0d6ce57f50..3128fae5b0 100644
--- a/src/vboot/Makefile.inc
+++ b/src/vboot/Makefile.inc
@@ -239,17 +239,11 @@ endif
# in the keyblock, and coreboot's vboot code clips the region_device to match,
# which prevents any potential extension attacks.
$(obj)/FW_MAIN_%.bin: $(obj)/coreboot.rom
+ $(CBFSTOOL) $< truncate -r $(basename $(notdir $@)) > $@.tmp.size
$(CBFSTOOL) $< read -r $(basename $(notdir $@)) -f $@.tmp
- $(CBFSTOOL) $(obj)/coreboot.rom print -k -r $(basename $(notdir $@)) | \
- tail -1 | \
- sed "s,^(empty)[[:space:]]\(0x[0-9a-f]*\)\tnull\t.*$$,\1," \
- > $@.tmp.size
- if [ -n "$$(cat $@.tmp.size)" ] && [ $$( printf "%d" $$(cat $@.tmp.size)) -gt 0 ]; then \
- head -c $$( printf "%d" $$(cat $@.tmp.size)) $@.tmp > $@.tmp2 && \
- mv $@.tmp2 $@; \
- else \
- mv $@.tmp $@; \
- fi
+ head -c $$( printf "%d" $$(cat $@.tmp.size)) $@.tmp > $@.tmp2
+ mv $@.tmp2 $@
+ rm -f $@.tmp $@.tmp.size
$(obj)/VBLOCK_%.bin: $(obj)/FW_MAIN_%.bin $(FUTILITY)
$(FUTILITY) vbutil_firmware \