[Buildroot] [PATCH] add romfs support

[Buildroot] [PATCH] add romfs support

[digitalpeer]

The following patch adds the ability to generate a romfs image using genromfs.
Josh

diff -purN buildroot-snapshot/target/romfs/Config.in
buildroot-romfs/target/romfs/Config.in
--- buildroot-snapshot/target/romfs/Config.in	1969-12-31
16:00:00.000000000 -0800
+++ buildroot-romfs/target/romfs/Config.in	2008-04-01 14:11:13.000000000 -0700
@@ -0,0 +1,7 @@
+config BR2_TARGET_ROOTFS_ROMFS
+	bool "romfs root filesystem"
+	default n
+	select BR2_HOST_FAKEROOT
+	help
+	  Build a romfs image of the root filesystem.
+
diff -purN buildroot-snapshot/target/romfs/romfs.mk
buildroot-romfs/target/romfs/romfs.mk
--- buildroot-snapshot/target/romfs/romfs.mk	1969-12-31 16:00:00.000000000 -0800
+++ buildroot-romfs/target/romfs/romfs.mk	2008-04-01 14:16:22.000000000 -0700
@@ -0,0 +1,79 @@
+#############################################################
+#
+# genromfs to build to target romfs filesystems
+#
+#############################################################
+ROMFS_VERSION=0.5.2
+ROMFS_DIR=$(BUILD_DIR)/genromfs-$(ROMFS_VERSION)
+ROMFS_SOURCE=genromfs-$(ROMFS_VERSION).tar.gz
+ROMFS_SITE=http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/romfs
+
+$(DL_DIR)/$(ROMFS_SOURCE):
+	 $(WGET) -P $(DL_DIR) $(ROMFS_SITE)/$(ROMFS_SOURCE)
+
+$(ROMFS_DIR): $(DL_DIR)/$(ROMFS_SOURCE)
+	$(ZCAT) $(DL_DIR)/$(ROMFS_SOURCE) | tar -C $(BUILD_DIR) -xvf -
+
+$(ROMFS_DIR)/genromfs: $(ROMFS_DIR)
+	$(MAKE) -C $(ROMFS_DIR)
+	touch -c $@
+
+romfs: $(ROMFS_DIR)/genromfs
+
+romfs-source: $(DL_DIR)/$(ROMFS_SOURCE)
+
+romfs-clean:
+	-$(MAKE) -C $(ROMFS_DIR) clean
+
+romfs-dirclean:
+	rm -rf $(ROMFS_DIR)
+
+#############################################################
+#
+# Build the romfs root filesystem image
+#
+#############################################################
+
+ROMFS_TARGET=$(IMAGE).romfs
+
+romfsroot: host-fakeroot makedevs romfs
+	- at find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIPCMD)
2>/dev/null || true
+ifneq ($(BR2_HAVE_MANPAGES),y)
+	@rm -rf $(TARGET_DIR)/usr/man
+endif
+ifneq ($(BR2_HAVE_INFOPAGES),y)
+	@rm -rf $(TARGET_DIR)/usr/info
+endif
+	$(if $(TARGET_LDCONFIG),test -x $(TARGET_LDCONFIG) &&
$(TARGET_LDCONFIG) -r $(TARGET_DIR) 2>/dev/null)
+	# Use fakeroot to pretend all target binaries are owned by root
+	rm -f $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+	touch $(PROJECT_BUILD_DIR)/.fakeroot.00000
+	cat $(PROJECT_BUILD_DIR)/.fakeroot* >
$(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+	echo "chown -R 0:0 $(TARGET_DIR)" >>
$(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+ifneq ($(TARGET_DEVICE_TABLE),)
+	# Use fakeroot to pretend to create all needed device nodes
+	echo "$(STAGING_DIR)/bin/makedevs -d $(TARGET_DEVICE_TABLE) $(TARGET_DIR)" \
+		>> $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+endif
+	# Use fakeroot so genromfs believes the previous fakery
+	echo "$(ROMFS_DIR)/genromfs -d $(TARGET_DIR) -f $(ROMFS_TARGET)" >>
$(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+	chmod a+x $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+	$(STAGING_DIR)/usr/bin/fakeroot --
$(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+	- at rm -f $(PROJECT_BUILD_DIR)/_fakeroot.$(notdir $(ROMFS_TARGET))
+
+romfsroot-source: romfs-source
+
+romfsroot-clean:
+	-$(MAKE) -C $(ROMFS_DIR) clean
+
+romfsroot-dirclean:
+	rm -rf $(ROMFS_DIR)
+
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(strip $(BR2_TARGET_ROOTFS_ROMFS)),y)
+TARGETS+=romfsroot
+endif

[Buildroot] [PATCH] add romfs support

[Hamish Moffatt]

On Tue, Apr 01, 2008 at 02:24:00PM -0700, digitalpeer wrote:
> The following patch adds the ability to generate a romfs image using genromfs.

Thanks, committed in rev 21618.

Two notes;

1. Your patch was word-wrapped in a few places.

2. Needed to edit target/Config.in to include target/romfs/Config.in
also. I guess you did this but forgot to send the patch.


Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>

[Buildroot] [PATCH] add romfs support

[digitalpeer]

Hmm, I'll send future patches as attachments if you prefer?

On Tue, Apr 1, 2008 at 5:20 PM, Hamish Moffatt <hamish@cloud.net.au> wrote:

> On Tue, Apr 01, 2008 at 02:24:00PM -0700, digitalpeer wrote:
> > The following patch adds the ability to generate a romfs image using
> genromfs.
>
> Thanks, committed in rev 21618.
>
> Two notes;
>
> 1. Your patch was word-wrapped in a few places.
>
> 2. Needed to edit target/Config.in to include target/romfs/Config.in
> also. I guess you did this but forgot to send the patch.
>
>
> Hamish
> --
> Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>
>
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[Buildroot] [PATCH] add romfs support

[Hamish Moffatt]

On Tue, Apr 01, 2008 at 05:28:38PM -0700, digitalpeer wrote:
> On Tue, Apr 1, 2008 at 5:20 PM, Hamish Moffatt <hamish@cloud.net.au> wrote:
> 
> > On Tue, Apr 01, 2008 at 02:24:00PM -0700, digitalpeer wrote:
> > > The following patch adds the ability to generate a romfs image using
> > genromfs.
> >
> > Thanks, committed in rev 21618.
> >
> > Two notes;
> >
> > 1. Your patch was word-wrapped in a few places.
> >
> > 2. Needed to edit target/Config.in to include target/romfs/Config.in
> > also. I guess you did this but forgot to send the patch.

> Hmm, I'll send future patches as attachments if you prefer?

Inline is ok (easier to comment on) if you can configure your mailer not
to break your messages. Maybe not, I guess it's gmail.

Also top-posting is bad :-)

Thanks
Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>

[Buildroot] [PATCH] add romfs support

[Peter Korsgaard]

>>>>> "digitalpeer" == digitalpeer  <buildroot@digitalpeer.com> writes:

 digitalpeer> The following patch adds the ability to generate a romfs
 digitalpeer> image using genromfs.

Just curious, why would anyone use romfs instead of the more modern
alternatives (cramfs, squashfs)?

-- 
Bye, Peter Korsgaard