| # $(1): src directory |
| # $(2): output file |
| # $(3): label (if any) |
| # $(4): ext variant (ext2, ext3, ext4) |
| comma := , |
| |
| define build-userimage-ext-target |
| @mkdir -p $(dir $(2)) |
| $(hide) num_blocks=`du -sk $(1) | tail -n1 | awk '{print $$1;}'`;\ |
| if [ $$num_blocks -lt 20480 ]; then extra_blocks=3072; \ |
| else extra_blocks=20480; fi ; \ |
| num_blocks=`expr $$num_blocks + $$extra_blocks` ; \ |
| num_inodes=`find $(1) | wc -l` ; num_inodes=`expr $$num_inodes + 500`; \ |
| $(hide) $(MKEXT2IMG) -a -d $(1) -b $$num_blocks -N $$num_inodes -m 0 $(2) |
| $(if $(strip $(3)),\ |
| $(hide) $(TUNE2FS) -L $(strip $(3)) $(2)) |
| $(if $(filter ext3,$(4)), \ |
| $(hide) $(TUNE2FS) -j $(2)) |
| $(if $(filter ext4,$(4)), \ |
| $(hide) $(TUNE2FS) -j -O extents$(comma)uninit_bg$(comma)dir_index $(2)) |
| $(hide) $(TUNE2FS) -C 1 $(2) |
| $(hide) $(E2FSCK) -fy $(2) ; [ $$? -lt 4 ] |
| endef |
