Rootfs: Add support of squashfs root filesystem build

Signed-off-by: Abdoulaye Walsimou Gaye <walsimou@walsimou.com>

5 files changed, 107 insertions, 13 deletions

diff --git a/kconfig/fs.kconfig b/kconfig/fs.kconfig
index 9add022..8f63bf1 100644
--- a/kconfig/fs.kconfig
+++ b/kconfig/fs.kconfig
@@ -26,18 +26,6 @@
 
 menu "Type of root filesystem to build"
 
-#JFFS2 root filesystem image build
-config EMBTK_ROOTFS_HAVE_JFFS2
-	bool "Build a JFFS2 root filesystem image"
-	help
-	 Build a JFFS2 root filesystem image for your target
-config EMBTK_ROOTFS_HAVE_JFFS2_BLOCKSIZE
-	depends on EMBTK_ROOTFS_HAVE_JFFS2
-	help
-	 Erase block size to use in KB
-	int "Erase block size to use in KB"
-	default 512
-
 #INITRAMFS cpio archive
 config EMBTK_ROOTFS_HAVE_INITRAMFS_CPIO
 	bool "Build cpio archive for initramfs"
@@ -57,4 +45,22 @@ choice
 		 Use bzip2 compression algorithm.
 endchoice
 
+#JFFS2 root filesystem image build
+config EMBTK_ROOTFS_HAVE_JFFS2
+	bool "Build a JFFS2 root filesystem image"
+	help
+	 Build a JFFS2 root filesystem image for your target
+config EMBTK_ROOTFS_HAVE_JFFS2_BLOCKSIZE
+	depends on EMBTK_ROOTFS_HAVE_JFFS2
+	help
+	 Erase block size to use in KB
+	int "Erase block size to use in KB"
+	default 512
+
+#SQUASHFS root filesystem
+config EMBTK_ROOTFS_HAVE_SQUASHFS
+	bool "Build a squashfs root filesystem image"
+	help
+	 Build a squashfs root filesystem image for your target
+
 endmenu
diff --git a/mk/fs.mk b/mk/fs.mk
index 998664e..6ceb778 100644
--- a/mk/fs.mk
+++ b/mk/fs.mk
@@ -45,6 +45,12 @@ build_jffs2_rootfs:
 	-o $(EMBTK_ROOT)/rootfs-$(GNU_TARGET)-$(EMBTK_MCU_FLAG).jffs2
 	@rm -rf $(EMBTK_ROOT)/rootfs-$(GNU_TARGET)-$(EMBTK_MCU_FLAG).jffs2.temp
 
+build_squashfs_rootfs:
+	$(call EMBTK_GENERIC_MESSAGE,"Generating squashfs root filesystem...")
+	$(FAKEROOT_BIN) -i $(EMBTK_ROOT)/.fakeroot.001 -- \
+	$(HOSTTOOLS)/usr/bin/mksquashfs $(ROOTFS) \
+	rootfs-$(GNU_TARGET)-$(EMBTK_MCU_FLAG).squashfs
+
 build_initramfs_archive:
 	$(call EMBTK_GENERIC_MESSAGE,"Generating cpio archive for initramfs...")
 ifeq ($(EMBTK_ROOTFS_HAVE_INITRAMFS_CPIO_GZIPED),y)
diff --git a/mk/initialpath.mk b/mk/initialpath.mk
index 3a799da..d2091a8 100644
--- a/mk/initialpath.mk
+++ b/mk/initialpath.mk
@@ -49,5 +49,6 @@ ifeq ($(CONFIG_EMBTK_HAVE_ROOTFS),y)
 endif
 
 rmallpath:
-	@rm -Rf build rootfs-* sysroot-* tools-* $(DOWNLOAD_DIR)/eglibc*
+	@rm -Rf build rootfs-* sysroot-* tools-* $(DOWNLOAD_DIR)/eglibc* \
+	initramfs-*
 
diff --git a/mk/rootfs.mk b/mk/rootfs.mk
index 4d55505..fd03370 100644
--- a/mk/rootfs.mk
+++ b/mk/rootfs.mk
@@ -47,6 +47,13 @@ ROOTFS_HOSTTOOLS_CLEAN += mtd-utils_host_clean
 FILESYSTEMS += build_jffs2_rootfs
 endif
 
+#Does squashfs filesystem selected?
+ifeq ($(CONFIG_EMBTK_ROOTFS_HAVE_SQUASHFS),y)
+include $(EMBTK_ROOT)/mk/squashfs.mk
+ROOTFS_HOSTTOOLS += squashfs_host_install
+FILESYSTEMS += build_squashfs_rootfs
+endif
+
 rootfs_build:
 	$(call EMBTK_GENERIC_MESSAGE,"Building selected root filesystems...")
 	@$(MAKE) rootfs_clean mkinitialpath $(ROOTFS_HOSTTOOLS) \
diff --git a/mk/squashfs.mk b/mk/squashfs.mk
new file mode 100644
index 0000000..b9d979e
--- /dev/null
+++ b/mk/squashfs.mk
@@ -0,0 +1,74 @@
+################################################################################
+# GAYE Abdoulaye Walsimou, <walsimou@walsimou.com>
+# Copyright(C) 2009 GAYE Abdoulaye Walsimou. All rights reserved.
+#
+# This program is free software; you can distribute it and/or modify it
+# under the terms of the GNU General Public License
+# (Version 2 or later) published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+################################################################################
+#
+# \file         squashfs.mk
+# \brief	squashfs.mk of Embtoolkit.
+# \author       GAYE Abdoulaye Walsimou, <walsimou@walsimou.com>
+# \date         August 2009
+################################################################################
+
+SQUASHFS_VERSION := 4.0
+SQUASHFS_SITE := http://downloads.sourceforge.net/project/squashfs/squashfs
+SQUASHFS_PACKAGE := squashfs$(SQUASHFS_VERSION).tar.gz
+SQUASHFS_HOST_BUILD_DIR := $(TOOLS_BUILD)/squashfs-build
+SQUASHFS_TARGET_BUILD_DIR := $(PACKAGES_BUILD)/squashfs-build
+
+squashfs_host_install: $(SQUASHFS_HOST_BUILD_DIR)/.installed
+squashfs_target_install: $(SQUASHFS_TARGET_BUILD_DIR)/.installed
+
+#squashfs for host
+$(SQUASHFS_HOST_BUILD_DIR)/.installed: download_squashfs \
+	$(SQUASHFS_HOST_BUILD_DIR)/.decompressed
+	@CC=$(HOSTCC_CACHED) \
+	$(MAKE) -C $(TOOLS_BUILD)/squashfs$(SQUASHFS_VERSION)/squashfs-tools
+	@cp $(TOOLS_BUILD)/squashfs$(SQUASHFS_VERSION)/squashfs-tools/\
+	mksquashfs $(HOSTTOOLS)/usr/bin/
+	@cp $(TOOLS_BUILD)/squashfs$(SQUASHFS_VERSION)/squashfs-tools/\
+	unsquashfs $(HOSTTOOLS)/usr/bin/
+	@touch $@
+
+$(SQUASHFS_HOST_BUILD_DIR)/.decompressed:
+	$(call EMBTK_GENERIC_MESSAGE,"Decompressing $(SQUASHFS_PACKAGE)...")
+	@tar -C $(TOOLS_BUILD) -xzvf $(DOWNLOAD_DIR)/$(SQUASHFS_PACKAGE)
+	@mkdir -p $(SQUASHFS_HOST_BUILD_DIR)
+	@touch $@
+
+squashfs_host_clean:
+	$(call EMBTK_GENERIC_MESSAGE,"Cleaning squashfs in host ...")
+
+#squashfs for target
+$(SQUASHFS_TARGET_BUILD_DIR)/.installed: download_squashfs \
+	$(SQUASHFS_TARGET_BUILD_DIR)/.decompressed
+	@touch $@
+
+$(SQUASHFS_TARGET_BUILD_DIR)/.decompressed:
+	$(call EMBTK_GENERIC_MESSAGE,"Decompressing $(SQUASHFS_PACKAGE)...")
+	@tar -C $(PACKAGES_BUILD) -xzvf $(DOWNLOAD_DIR)/$(SQUASHFS_PACKAGE)
+	@mkdir -p $(SQUASHFS_TARGET_BUILD_DIR)
+	@touch $@
+
+squashfs_target_clean:
+	$(call EMBTK_GENERIC_MESSAGE,"Cleaning squashfs in target ...")
+
+download_squashfs:
+	$(call EMBTK_GENERIC_MESSAGE,"Downloading $(SQUASHFS_PACKAGE) \
+	if necessary...")
+	@test -e $(DOWNLOAD_DIR)/$(SQUASHFS_PACKAGE) || \
+	wget -O $(DOWNLOAD_DIR)/$(SQUASHFS_PACKAGE) \
+	$(SQUASHFS_SITE)/squashfs$(SQUASHFS_VERSION)/$(SQUASHFS_PACKAGE)
+