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kumquat-buildroot/fs/ext2/ext2.mk

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Major rework
2002-04-26 13:45:55 +02:00
#############################################################
#
# Build the ext2 root filesystem image
#
#############################################################
We need to calculate filesystem size right when we run genext2fs. As was, size was calculated right when 'make' was run, at which point the rootfs may well be empty...
2005-02-12 05:32:17 +01:00
EXT2_OPTS :=
A patch from Arne Jonsson to calculate fs size, with adjustments by me.
2002-10-23 09:56:20 +02:00
We need to calculate filesystem size right when we run genext2fs. As was, size was calculated right when 'make' was run, at which point the rootfs may well be empty...
2005-02-12 05:32:17 +01:00
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
target/: get rid of unneeded $(strip ..)
2008-12-08 09:15:58 +01:00
EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
Patch from gtj -- http://bugs.uclibc.org/view.php?id=39 0000039: Adds options to ext2 filesystem creation Adds ability to specify block and inode counts, reserved blocks, permissions squash and device table in the configuration. Also adds capability to gzip output and to copy the resulting image to a secondary location like a tftp server's root directory.
2005-01-23 11:53:06 +01:00
endif
We need to calculate filesystem size right when we run genext2fs. As was, size was calculated right when 'make' was run, at which point the rootfs may well be empty...
2005-02-12 05:32:17 +01:00
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
target/: get rid of unneeded $(strip ..)
2008-12-08 09:15:58 +01:00
EXT2_OPTS += -N $(BR2_TARGET_ROOTFS_EXT2_INODES)
Patch from gtj -- http://bugs.uclibc.org/view.php?id=39 0000039: Adds options to ext2 filesystem creation Adds ability to specify block and inode counts, reserved blocks, permissions squash and device table in the configuration. Also adds capability to gzip output and to copy the resulting image to a secondary location like a tftp server's root directory.
2005-01-23 11:53:06 +01:00
endif
fs/ext2: fix typo BR2_TARGET_ROOTFS_EXT2_RESBLKS is an int, so test against 0 rather than the empty string - Otherwise the test is always true and a -m option without arguments is added to the argument list, causing genext2fs to get confused. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2010-04-19 11:03:45 +02:00
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),0)
target/: get rid of unneeded $(strip ..)
2008-12-08 09:15:58 +01:00
EXT2_OPTS += -m $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
Patch from gtj -- http://bugs.uclibc.org/view.php?id=39 0000039: Adds options to ext2 filesystem creation Adds ability to specify block and inode counts, reserved blocks, permissions squash and device table in the configuration. Also adds capability to gzip output and to copy the resulting image to a secondary location like a tftp server's root directory.
2005-01-23 11:53:06 +01:00
endif
fs/ext2: add ability to build ext3/4 too Use the host-e2fsprogs to tune2fs the generated rootfs.ext2 image, and upgrade it to either one of ext2, ext3 or ext4. Since calling tune2fs may require running e2fsck (tune2fs will warn to do so when certain FS options are changed), we systematically call e2fsck. This makes the code path simpler, and as a side-effect checks that genext2fs did not generate garbage. In turn, e2fsck will unconditionally add a UUID to the filesystem, which is bad for reproducibility, so we call tune2fs again to remove the UUID. This does not require checking the filesystem. To ensure compatibility of Buildroot's .config, leave ext2 as the default. Boards' .config can override this at will. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Arnout Vandecappelle <arnout@mind.be> Cc: Peter Korsgaard <jacmet@uclibc.org> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-04-11 14:17:51 +02:00
ROOTFS_EXT2_DEPENDENCIES = host-genext2fs host-e2fsprogs
fs/ext2: add support for ext2 rev0 and rev1 Some bootloaders have a buggy ext2 support, and require ext2 rev1 instead of the traditional ext2 rev0 that genext2fs produces. tune2fs accepts only one '-O list' at a time, so we need to construct a list of -O options. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Arnout Vandecappelle <arnout@mind.be> Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-04-11 14:17:53 +02:00
EXT2_ENV = GEN=$(BR2_TARGET_ROOTFS_EXT2_GEN)
EXT2_ENV += REV=$(BR2_TARGET_ROOTFS_EXT2_REV)
Patch from gtj -- http://bugs.uclibc.org/view.php?id=39 0000039: Adds options to ext2 filesystem creation Adds ability to specify block and inode counts, reserved blocks, permissions squash and device table in the configuration. Also adds capability to gzip output and to copy the resulting image to a secondary location like a tftp server's root directory.
2005-01-23 11:53:06 +01:00
ext2: convert to ROOTFS_TARGET infrastructure We also remove the BR2_TARGET_ROOTFS_EXT2_OUTPUT option, that could be used to specify an alternate name for the generated image file. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2010-03-10 00:15:15 +01:00
define ROOTFS_EXT2_CMD
fs/ext2: add ability to build ext3/4 too Use the host-e2fsprogs to tune2fs the generated rootfs.ext2 image, and upgrade it to either one of ext2, ext3 or ext4. Since calling tune2fs may require running e2fsck (tune2fs will warn to do so when certain FS options are changed), we systematically call e2fsck. This makes the code path simpler, and as a side-effect checks that genext2fs did not generate garbage. In turn, e2fsck will unconditionally add a UUID to the filesystem, which is bad for reproducibility, so we call tune2fs again to remove the UUID. This does not require checking the filesystem. To ensure compatibility of Buildroot's .config, leave ext2 as the default. Boards' .config can override this at will. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Arnout Vandecappelle <arnout@mind.be> Cc: Peter Korsgaard <jacmet@uclibc.org> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-04-11 14:17:51 +02:00
PATH=$(TARGET_PATH) $(EXT2_ENV) fs/ext2/genext2fs.sh -d $(TARGET_DIR) $(EXT2_OPTS) $@
ext2: convert to ROOTFS_TARGET infrastructure We also remove the BR2_TARGET_ROOTFS_EXT2_OUTPUT option, that could be used to specify an alternate name for the generated image file. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2010-03-10 00:15:15 +01:00
endef
Major rework
2002-04-26 13:45:55 +02:00
fs/ext2: add a symlink 'rootfs.ext#' -> 'rootfs.ext2' Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Arnout Vandecappelle <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-04-11 14:17:52 +02:00
define ROOTFS_EXT2_HOOK_SYMLINK
ln -sf rootfs.ext2 $(BINARIES_DIR)/rootfs.ext$(BR2_TARGET_ROOTFS_EXT2_GEN)
endef
ifneq ($(BR2_TARGET_ROOTFS_EXT2_GEN),2)
ROOTFS_EXT2_POST_GEN_HOOKS += ROOTFS_EXT2_HOOK_SYMLINK
endif
fs/ext2: fix blocks/inodes calculation With the ROOTFS_TARGET conversion, EXT2_OPTS gets evaluated very early (before TARGET_DIR is populated with files), so the calculated blocks/inodes numbers are wrong. Fix it by moving the calculation to a shell script wrapper around genext2fs, so it only gets executed just before genext2fs runs. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2010-04-19 14:24:11 +02:00
$(eval $(call ROOTFS_TARGET,ext2))
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