68 lines
2.3 KiB
Makefile
68 lines
2.3 KiB
Makefile
#############################################################
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#
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# genext2fs to build to target ext2 filesystems
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#
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#############################################################
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GENEXT2_DIR=$(BUILD_DIR)/genext2fs-1.3.orig
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GENEXT2_SOURCE=genext2fs_1.3.orig.tar.gz
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GENEXT2_SITE=http://ftp.debian.org/debian/pool/main/g/genext2fs
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GENEXT2_PATCH=$(SOURCE_DIR)/genext2fs.patch
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$(DL_DIR)/$(GENEXT2_SOURCE):
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wget -P $(DL_DIR) --passive-ftp $(GENEXT2_SITE)/$(GENEXT2_SOURCE)
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$(GENEXT2_DIR): $(DL_DIR)/$(GENEXT2_SOURCE) $(GENEXT2_PATCH)
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zcat $(DL_DIR)/$(GENEXT2_SOURCE) | tar -C $(BUILD_DIR) -xvf -
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cat $(GENEXT2_PATCH) | patch -p1 -d $(GENEXT2_DIR)
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$(GENEXT2_DIR)/genext2fs: $(GENEXT2_DIR)
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$(MAKE) CFLAGS="-Wall -O2 -D_FILE_OFFSET_BITS=64 -D__USE_FILE_OFFSET64" -C $(GENEXT2_DIR);
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touch -c $(GENEXT2_DIR)/genext2fs
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genext2fs: $(GENEXT2_DIR)/genext2fs
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#############################################################
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#
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# Build the ext2 root filesystem image
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#
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# Known problems :
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# - genext2fs: couldn't allocate a block (no free space)
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#
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# Since genext2fs allocates only one group of blocks, the FS
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# size is limited to a maximum of 8 Mb.
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#
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#############################################################
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# how much KB we want to add to the calculated size for the root directory,
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# to have additional space
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GENEXT2_ADDTOROOTSIZE := 256
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# maximal rootfilesystem size that can be handled
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# by genext2fs
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GENEXT2_MAXROOTSIZE := 8192
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GENEXT2_REALSIZE:=$(subst total,, $(shell du $(TARGET_DIR) -s -c -k | grep total ))
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GENEXT2_SIZE:=$(shell expr $(GENEXT2_REALSIZE) + $(GENEXT2_ADDTOROOTSIZE))
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# We currently add about 400 device nodes, so add that into the total
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GENEXT2_INODES:=$(shell expr $(shell find $(TARGET_DIR) | wc -l) + 400)
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#ifeq (1,$(shell expr $(GENEXT2_SIZE) \> $(GENEXT2_MAXROOTSIZE)))
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# $(error "Filesystem size, $(GENEXT2_SIZE) KB is greater than the maximum $(GENEXT2_MAXROOTSIZE) KB")
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#endif
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ext2root: genext2fs
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-@find $(TARGET_DIR)/lib -type f -name \*.so\* | xargs $(STRIP) --strip-unneeded 2>/dev/null || true;
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-@find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIP) 2>/dev/null || true;
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$(GENEXT2_DIR)/genext2fs -i $(GENEXT2_INODES) -b $(GENEXT2_SIZE) \
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-d $(TARGET_DIR) -D $(SOURCE_DIR)/device_table.txt $(IMAGE)
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ext2root-source: $(DL_DIR)/$(GENEXT2_SOURCE)
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ext2root-clean:
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-make -C $(GENEXT2_DIR) clean
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ext2root-dirclean:
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rm -rf $(GENEXT2_DIR)
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