btrfs will happily use an existing destination file if it
already exists, increasing its size if needed. Hoever, it
will never decrease the size, even if the requested size
is smaller than the existing file.
So, remove any previously existing destination file before
generating the new filesystem.
Note: the original submission by Robert did that, but as
this case was not obvious, the removal was dropped by a
refactoring when the patch was initially applied.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Robert J. Heywood <robert.heywood@codethink.co.uk>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[Thomas: use $@ instead of $(@), use $(RM) instead of rm.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This patch makes it possible to format the rootfs using btrfs. It
introduces the option; BR2_TARGET_ROOTFS_BTRFS.
When selected, the user is able to specify the filesystem size, label,
options, and node and sector sizes. The new files are based on
fs/ext2/{Config.in,ext2.mk}
Signed-off-by: Robert J. Heywood <robert.heywood@codethink.co.uk>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Thomas:
- fix issues pointed by Yann (duplicated empty line, missing quotes
around default values for string options)
- use -f option so that we don't have to remove the image file before
creating it again
- use the --byte-count option to set the filesystem size, which
avoids the need for doing a "truncate -s"
- remove the possible explanation of a mkfs.btrfs error. Indeed,
mkfs.btrfs automatically extends the size of the image as needed,
so the size passed can never be "too small".
- fix check-package warnings in Config.in file.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Fixes#11046
Commit bb2a57a17a (fs: run packages' filesystem hooks in a copy of target/)
changed the file system logic to run file system hooks from packages on a
copy of TARGET_DIR, and finally use this copy as input for the file system
generation.
This copy was done with rsync, which by default does not preserve hard
links, leading to an expansion of the file system images when hard links are
present.
Fix it by passing the -H option to rsync (preserve hard links).
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cramfs now has the ability to XIP all ELF files.
Cc: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
As of Linux-4.15, cramfs now has a official maintainer again.
Additionally, that person is hosting and maintaining a new version of
cramfs-tools.
Patches 0001-endian.patch and 0003-fix-missing-types.patch are no longer
needed because they have been upstreamed.
However, since patch 0002-cygwin_IO.patch is so old, it is being
removed until someone that needs it can reapply and test it. At
that point, they should submit the changes to the new cramfs-tools
maintainer instead of adding the patches back here.
Please note that cross-endian support for cramfsck is not supported
at this time.
Cc: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
... to follow the convention: type, default, depends on, select, help.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The header of the initramfs.mk file fits in one line, so rearrange it.
Remove consecutive empty line.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
UBINIZE_CONFIG_FILE_PATH is only used inside this file, so rename it to
start with UBI_, following the namespace convention already used by
common packages.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Rename the .mk to follow the convention. The variables inside it already
use the correct name.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Each of the intermediate, per-rootfs target directories, as well as the
intermediate tarball, can take quite some place, and is mostly a
duplication of what's already in target/. The only delta, if any, would
be the tweaks made by the filesystem image generations, but those tweaks
are most probably only meaningful when seen as root.
We normally do not remove intermediate files, but those can be quite
large, and are not directly usable by, nor accessible to the user.
So, get rid of them once the filesystem has been generated.
This does not need to be done in fakeroot.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Tested-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Now that the pre-fs ones are run on a transient copy of target/, the
post-fs hooks are no longer needed because we no longer need to restore
the target/ directory as it is only a internal copy.
Remove support for the post-fs hooks, and update the sole package using
them.
We do not add a legacy check because this was mostly a purely-internal
detail that was never really exposed nor documented.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Currently, some packages may register hooks to be run just before and
just after the generic tarball image is generated, because they need to
prepare the filesystem for read-only or read-write operation.
However, this means that, if any of the hooks or the image generation
fails, the target directory is left in a dangling, inconsistent state.
We fix that by doing a copy of target/, run the hooks on that copy,
generate the generic tarball image out of that, and get rid of the copy.
This way, we can guarantee consistency of the target directory, and we
can even ditch support for post-fs hooks (those that restore target/).
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Currently, some filesystems may want to tweak the content of the target
directory, create special device nodes etc... This all means that:
- the content of the target directory for a specific filesystems may
depend on whether another filesystem is enabled or not; for example,
cpio will create a /init script or symlink and a /dev/console node;
- the filesystems can not be built in parallel, because they may change
the content of the target directory while another is being assembled.
Furthermore, the same fakeroot script is executed over-and-over-again
for each filesystem, to create the device nodes, the users and their
homes and files, and setting permissions...
We introduce an intermediate tarball, for which we do the full fakeroot
shebang.
That tarball then serves as the base for the other filesystems, with a
very simple fakeroot script that untars the common tarball, and calls
the actual filesystem image generator on that.
Note that we use a very simple tar command to generate the intermediate
tarball, because we are not concerned with reproducibility of the
archive itself (only of the archived files).
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Before we can create an intermediate tarball for all filesystems, we
nedd to move the common dependencies needed to generate that
intermediate tarball, rather than leave those dependencies to each
filesystem.
So, we introduce rootfs-common, which gathers all those common
dependencies.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
... which for now still points to the base target directory, but this is
a step forward.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
... and locate that script in a per-rootfs directory.
Just like for ROOTFS, this variable will leak down the dependency tree to
target-finalize and packages - But it doesn't matter as it isn't used
outside fs/.
[Peter: extend commit message]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This will serve in future commits to store pre-rootfs files, like
fakeroot script...
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Like we do for packages with the PKG variable, set ROOTFS to contain the
upper-case name of the rootfs currently being generated.
This will be useful in later patches, when we need more per-rootfs
variables, like a per-rootfs TARGET_DIR for example.
In Makefiles, per-rule variables trickle down the dependency chain, to
all dependencies of that rule, so we have to stop ROOTFS as soon as
we're not in a rootfs. This means we have to stop it at target-finalize
(which is a dependency of all filesystems), and for each package
individually, since some packages (host or target) can be direct
dependencies of filesystems as well.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
We're soon to introduce a generic variable with that name, i.e.
$(FS_NAME)_TARGET_DIR, so our internal, temporary variable would
clash with it.
Just rename it.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Currently, when we build a cpio filesystem without static devices, we
shoehorn the /dev/console node as if it were specified by a package.
This means that this device is added for all filesystems as well, not
just the cpio. But if we disable cpio, that device is not created for
other filesystems.
This is not very clean, and may break expectations.
Instead, use an explicit mknod as part of the _CMD, as we know it's
going to run under fakeroot.
This is still visible to all filesystems built after cpio, and not to
those built before it, though.
[Peter: ensure /dev exists, simplify comment]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Currently, the pre-gen hooks of the various filesystems are run before
we enter the fakeroot.
However, this precludes those hooks from doing actions that require
root, like creating a pseudo-device or the likes.
So, move those pre-gen hooks under fakeroot.
This has currently no side-effect, as they are still called before
everything else in the fakeroot script, even the system-wide chown call.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This moves the host-tar dependency handling from
DEPENDENCY_HOST_PREREQ to an extract dependency.
To achieve that, check-host-tar.mk fills in the
BR2_TAR_HOST_DEPENDENCY variable with host-tar if building a host-tar
is needed. The name BR2_TAR_HOST_DEPENDENCY has been chosen because it
matches the name BR2_CMAKE_HOST_DEPENDENCY already used in
check-host-cmake.mk.
The BR2_TAR_HOST_DEPENDENCY is added to all packages, except host-tar
itself (obviously) and host-skeleton, because we depend on
host-skeleton to install host-tar properly in HOST_DIR.
In addition, we modify tar.mk to explicitly build host-tar without
ccache: since ccache source code is available as a tarball, ccache
will obviously depend on host-tar if the system tar is insufficient.
Finally, to make things really clean, we also add
$(BR2_TAR_HOST_DEPENDENCY) to the dependencies of the tar filesystem
format, since it requires tar, so we'd better make sure we have a
suitable tar.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Use "$@" instead of $* to preserve arguments containing spaces.
The shell expands "$@" as "$1" "$2" "$3"... while it expands $@ as $1 $2
$3. With the second form, we loses spaces in positional parameters.
Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Reviewed-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Like we do for post-build and post-image scripts, pass EXTRA_ENV to
post-fakeroot script.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Similar to the other compressors. Notice that we use the -l (legacy format)
for Linux kernel initrd compatibility.
Lz4 decompression is supported by the Linux kernel since 3.11.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, to register a filesystem, one has to call:
$(eval $(call ROOTFS_TARGET,blabla))
This is very unlike the package infrastructure, where the name of the
package is automatically guessed by the infra.
It turns out that we can now do that for the filesystem infra too.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, the ubifs-in-ubi-image ("UBI image" thereafter) filesystem
is half an option of the ubifs filesystem, half a filesystem on its
own: the config options are options of the ubifs filesystem, but the
.mk code is in a separate .mk and registers a real filesystem.
Make it a full filesystem on its own, in its own directory tree.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It needs mkzftree from zisofs-tools, so we add a dependency to it, and
we call that one explicitly (to avoid using the one from the host in
PATH).
It also needs the the uncompressed kernel image, but because it is
already in target/ so it gets compressed by mkzftree. We have two
options:
- compress everything but the kernel image,
- compress everything, kernel included, and recopy it later.
We choose the latter, because it is the simplest solution. So, we always
define the kernel-copy hook, but only register it when needed.
Finally, it needs a kernel with support for transparent
(de)compression, so we update the existing test config.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Thomas: rename option to BR2_TARGET_ROOTFS_ISO9660_TRANSPARENT_COMPRESSION.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This line has been sitting there unchanged for years now, but it does
not follow current best pratices, that is:
- do not use imediate assignment,
- split lines longer than ~80 chars.
Fix that.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some filesystems have PRE_GEN hooks that create a directory structure
under the temporary directory.
For example, iso9660 will create a sub-directory where it stores the
kernel (in case of initramfs or initrd).
So, we must run the PRE_GEN hooks after we cleanup/create the temporary
directory.
Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/42835965https://gitlab.com/buildroot.org/buildroot/-/jobs/42835967
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that they are in their own directory and no longer pollute the build
dir, there is no point in removing them.
Furthermore, a follow-up patch will require that those files survive
when more than one filesystem image is generated.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Use the newly-introdued $(FS_DIR) location to store temporary files.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, we create a bunch of temporary files in $(BUILD_DIR), while
assembling the filesystem images.
Move those files to their own sub-directory.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Remove it just before generating the filesystem image.
This way, removing-and-recreating the file encloses the actual
image generation as tightly as possible.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The only users of post-target rules were ext2, cpio and initramfs.
Of those, ext2 and cpio were changed to use post-gen hooks, while
initramfs was not even using the generic rootfs infra and was fixed
to no longer reference post-target rules.
Besides, the comment in the infra was really misleading: it referenced
initramfs implying it was the sole user of that feature, even though
initramfs was not using the fs infra.
Furthermore, using post-target rules was inherently broken for top-level
parallel builds, because filesystems had to ensure the ordering by
themselves. Of the two real users of post-target rules (cpio and ext2),
one did enforce rules ordering (apparently correctly), while the other
forgot to do so.
We can get rid of post-target rules altogether, now.
Add a legacy check, to catch out-of-tree (e.g. br2-external) users of
post-target rules, and instruct them to switch to post-gen hooks instead.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We already have a mechanism for running stuff after the filesystem is
generated, and that's called post-gen hooks.
Use those hooks.
Note: for cpio (and unlike ext2 previously), the dependency chain was
correct, in that the post-target rule correctly depended on the image
rule. Nonetheless, we still want to fix it for consistency.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
post-target rules are probably not resilient to parallel builds, given
that they do not depend on the image being generated first.
Beside, we already have a mechanism for running stuff after the
filesystem is generated, and that's called post-gen hooks.
Use those hooks.
Note: this basically reverts 75b6303 (rootfs-ext2: make the symlink as a
_POST_TARGET) since we've now re-introduced post-gen hooks.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
rootfs-initramfs is not using the generic fs infrastructure, because
there is virtually nothing to do to build the initramfs image: there is
no actual image to be built to begin with.
The only purpose of rootfs-initramfs is to ensure the rootfs.cpio image
is built and then that the Linux kernel is rebuilt with that rootfs.cpio
as initramfs source.
Using variables of the fs infra like if it were used is misleading. It
looked nice as long as there was the possibility that rootfs-initramfs
would one day use the fs infra. But there's no way that will happen any
time soon.
Furthermore, the linux' rule linux-rebuild-with-initramfs now already
depends on rootfs-cpio by itself, so we need not duplicate this
dependency in rootfs-initramfs.
Still, we want to advertise that the dependency is on rootfs-cpio, so
we get nice dependency graphs (and not expose the internal
linux-rebuild-with-initramfs rule to the users).
So, remove the variables and directly define the rules.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Romain Naour <romain.naour@openwide.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
When multiple hooks are registred, both pre-a and post-command hooks'
foreach loops need to have a separator at the end in order for the
code to work as intended. Without the separator all hooks end up as a
one single line command thus making all but the first hook into
no-ops.
Fixes: 4628b6f3b4 ("fs: add pre- and post-command hooks")
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
