add cloop as a new file system image type per case 0000151

target/Config.in

@@ -3,6 +3,7 @@ menu "Target Options"
 comment "filesystem for target device"
 
 source "target/cramfs/Config.in"
+source "target/cloop/Config.in"
 source "target/ext2/Config.in"
 source "target/jffs2/Config.in"
 source "target/squashfs/Config.in"

target/cloop/Config.in

@@ -0,0 +1,10 @@
+config BR2_TARGET_ROOTFS_CLOOP
+	bool "cloop root filesystem for the target device"
+	default n
+	help
+	  Build a cloop root filesystem
+	  cloop is a Linux kernel module that enables compressed loopback filesystem
+	  support.  With it you can mount a compressed filesystem like a block device
+	  and seamlessly decompress its data while accessing it.  The majority of the
+	  software on an LNX-BBC is accessed in this fashion.
+

target/cloop/Makefile.in

@@ -0,0 +1,3 @@
+ifeq ($(strip $(BR2_TARGET_ROOTFS_CLOOP)),y)
+TARGETS+=clooproot
+endif

target/cloop/cloop.mk

@@ -0,0 +1,120 @@
+#############################################################
+#
+# mkcloop to build to target cloop filesystems
+#
+#############################################################
+### /cloop_2.01.5.orig.tar.gz
+CLOOP_VERSION=2.01
+CLOOP_DIR=$(BUILD_DIR)/cloop-$(CLOOP_VERSION)
+### CLOOP_SOURCE=cloop_$(CLOOP_VERSION).5.orig.tar.gz
+### CLOOP_SITE=http://ftp.debian.org/debian/pool/main/c/cloop
+# http://ftp.debian.org/debian/pool/main/c/cloop/cloop_2.01.5-4.diff.gz
+### CLOOP_PATCH1:=cloop_2.01.5-4.diff.gz
+### CLOOP_PATCH1_URL:=$(CLOOP_SITE)
+# http://developer.linuxtag.net/knoppix/sources/cloop_2.01-5.tar.gz
+CLOOP_SOURCE=cloop_$(CLOOP_VERSION)-5.tar.gz
+CLOOP_SITE=http://developer.linuxtag.net/knoppix/sources
+
+### Note: not used yet! ck
+### $(DL_DIR)/$(CLOOP_PATCH1):
+### 	$(WGET) -P $(DL_DIR) $(CLOOP_PATCH1_URL)/$(CLOOP_PATCH1)
+
+$(DL_DIR)/$(CLOOP_SOURCE):
+	 $(WGET) -P $(DL_DIR) $(CLOOP_SITE)/$(CLOOP_SOURCE)
+
+$(CLOOP_DIR)/.unpacked: $(DL_DIR)/$(CLOOP_SOURCE) ### $(DL_DIR)/$(CLOOP_PATCH1)
+	zcat $(DL_DIR)/$(CLOOP_SOURCE) | tar -C $(BUILD_DIR) -xvf -
+	touch $(CLOOP_DIR)/.unpacked
+###		zcat $(DL_DIR)/$(CLOOP_PATCH1) | patch -p1 -d $(CLOOP_DIR)
+###		toolchain/patch-kernel.sh $(CLOOP_DIR) target/cloop/ cloop*.patch
+
+$(CLOOP_DIR)/create_compressed_fs: $(CLOOP_DIR)/.unpacked
+	$(MAKE) CFLAGS="-Wall -O2 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DUSE_ERROR_SILENT" -C $(CLOOP_DIR) \
+		APPSONLY=yes -j1 
+
+cloop: $(CLOOP_DIR)/create_compressed_fs
+
+cloop-source: $(DL_DIR)/$(CLOOP_SOURCE)
+
+cloop-clean:
+	-$(MAKE) -C $(CLOOP_DIR) clean
+
+cloop-dirclean:
+	rm -rf $(CLOOP_DIR)
+
+#############################################################
+#
+# Build the cloop.o kernel module for the HOST
+#
+#############################################################
+
+$(CLOOP_DIR)/cloop.o: $(CLOOP_DIR)/create_compressed_fs
+	$(MAKE) CFLAGS="-Wall -O2 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DUSE_ERROR_SILENT" -C $(CLOOP_DIR) -j1
+ 
+cloop-module: $(CLOOP_DIR)/cloop.o
+
+#############################################################
+#
+# Build the cloop root filesystem image
+#
+# Note: we need additionall host tools:
+# required:
+# mkisofs 2.01a34-unofficial-iconv from http://users.utu.fi/jahhein/mkisofs/
+# optional:
+# symlinks: scan/change symbolic links - v1.2 - by Mark Lord 
+#           from ftp://ftp.ibiblio.org/pub/Linux/utils/file/
+#
+#############################################################
+
+### Note: target/default/device_table.txt is not yet supported! ck
+# the quickfix is to use sudo to mount the previous created cramroot 
+check-tools:
+	which mkisofs
+	- which symlinks
+
+clooproot: cloop check-tools $(IMAGE).cramfs ### cramfsroot
+	-@find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIP) 2>/dev/null || true;
+	@rm -rf $(TARGET_DIR)/usr/man
+	@rm -rf $(TARGET_DIR)/usr/share/man
+	@rm -rf $(TARGET_DIR)/usr/info
+	### $(CLOOP_DIR)/create_compressed_fs -q -D target/default/device_table.txt $(TARGET_DIR) $(IMAGE).cloop
+	## mkisofs -r $(TARGET_DIR) | $(CLOOP_DIR)/create_compressed_fs - 65536 > $(IMAGE).cloop
+	sudo /sbin/losetup -d /dev/loop1
+	sudo /sbin/losetup /dev/loop1 $(IMAGE).cramfs
+	sudo mkdir -p /mnt/compressed
+	sudo mount -o ro -t cramfs /dev/loop1 /mnt/compressed
+	mkisofs -r /mnt/compressed | $(CLOOP_DIR)/create_compressed_fs - 65536 > $(IMAGE).cloop
+	- symlinks -r /mnt/compressed
+	sudo umount /mnt/compressed
+	@echo "Mounting a compressed image:"
+	@echo " sudo mkdir -p /mnt/compressed"
+	@echo " sudo /sbin/insmod cloop"
+	@echo " sudo /sbin/losetup /dev/cloop1 $(IMAGE).cloop"
+	@echo " sudo mount -o ro -t iso9660 /dev/cloop1 /mnt/compressed"
+
+clooproot-source: cloop-source
+
+clooproot-clean:
+	-$(MAKE) -C $(CLOOP_DIR) clean
+
+clooproot-dirclean:
+	rm -rf $(CLOOP_DIR)
+
+#############################################################
+# symlinks -r /mnt/compressed
+# dangling: /mnt/compressed/dev/log -> /tmp/log
+# other_fs: /mnt/compressed/etc/mtab -> /proc/mounts
+# other_fs: /mnt/compressed/var/lib/pcmcia -> /tmp
+# other_fs: /mnt/compressed/var/lock -> /tmp
+# other_fs: /mnt/compressed/var/log -> /tmp
+# other_fs: /mnt/compressed/var/pcmcia -> /tmp
+# other_fs: /mnt/compressed/var/run -> /tmp
+# other_fs: /mnt/compressed/var/spool -> /tmp
+# other_fs: /mnt/compressed/var/tmp -> /tmp
+#
+# ls -lrsS root_fs_*.*
+# 1296 -rw-r--r--    1 claus users 1325478 Mar 13 16:52 root_fs_powerpc.cloop
+# 1448 -rw-r--r--    1 claus users 1482752 Mar 13 16:52 root_fs_powerpc.cramfs
+# 1840 -rw-r--r--    1 claus users 1883408 Mar 13 13:14 root_fs_powerpc.jffs2
+#############################################################
+