Currently, when we need to do a conditional on the type of C library
used, we need to take into account the three toolchain backends. As we
are going to add eglibc support to the Buildroot toolchain backend, it
would become even uglier, so this patch introduces two new hidden
options: BR2_TOOLCHAIN_USES_UCLIBC and BR2_TOOLCHAIN_USES_GLIBC, that
exist regardless of the toolchain backend. The entire Buildroot code
base is converted to use those options.
Note that we have intentionally created only one option
(BR2_TOOLCHAIN_USES_GLIBC) for both glibc and eglibc, since they are
essentially the same, as far as Buildroot is concerned.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This finally removes the BR2_HAVE_DEVFILES option, that was used to
install/keep development files on target. With the recent migration of
the internal backend to the package infrastructure, we had anyway lost
the ability to build gcc for the target, and install the uClibc
development files on the target.
[Peter: also remove support/scripts/copy.sh]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Instead of using the 'uclibc' target for all toolchain backends,
introduce more sensible target names for the external toolchain and
Crosstool-NG toolchain backend make targets.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The $(O)/toolchain directory, also called $(TOOLCHAIN_DIR) is no
longer needed, as all packages are now built in $(O)/build/, including
gcc and uClibc.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Commit 14f48861 ("arc: Add ARC and ARC BE architecture") introduced a
sed match against arc* buildroot architecture to translate it to arc.
This causes a problem with armv8, which is called in buildroot aarch64,
which is also matching, resulting in a build failure.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Also make sure that older kernels are not selected for ARC.
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Initially, a "cp" was used for the one-time target skeleton
installation, and an "rsync" was used for the every-time overlay
skeleton installations. Then, the target skeleton install was
changed to also use rsync (1cd3f992fb).
Now there are two rsyncs, but with different filter specs, which
seems odd.
This patch adds --excludes to both invocations of rsync to make them
consistent, and removes the -u option from the initial target skeleton
installation.
Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Makes the code uniform with the post-build and post-image implementation
(which is slightly simpler and, presumably, more efficient).
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This also simplifies code by removing the ifneq/endif clauses.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This also simplifies code by removing the ifneq/endif clauses.
[Peter: drop extra space]
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
olddefconfig is a new target available in kconfig that allows to take
an old .config file, and update it to the latest version of the code,
without being asked for questions: it automatically assumes the
default value for options whose value was not defined.
It for example allows to take a minimal defconfig, copy it as .config,
and do 'make olddefconfig' to get the full .config.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Tested-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
We already use the .root stamp file to remember if we have copied the
skeleton, so we can remove the /bin check.
Likewise, we should always have a TARGET_SKELETON (or explicitly error
out otherwise), so remove that check as well.
Finally, now that we're using rsync to do the copy, we might as well
use its exclude support instead of cleaning up unwanted files afterwards.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
An example is .init_enable_core, to enable coredumps in busybox
Signed-off-by: Tilman Keskinöz <arved@arved.at>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The ncurses build can become polluted by the user's TERMINFO
environment variable, causing the user's ~/.terminfo to be modified
and preventing the install from succeeding:
/bin/sh ./run_tic.sh
** Building terminfo database, please wait...
Running tic to install /home/nathanl/devel/buildroot.git/output/host/usr/i686-unknown-linux-gnu/sysroot/usr/share/emacs/24.0.97/etc/ ...
You may see messages regarding extended capabilities, e.g., AX.
These are extended terminal capabilities which are compiled
using
tic -x
If you have ncurses 4.2 applications, you should read the INSTALL
document, and install the terminfo without the -x option.
1562 entries written to /home/nathanl/.terminfo
** built new /home/nathanl/devel/buildroot.git/output/host/usr/i686-unknown-linux-gnu/sysroot/usr/share/emacs/24.0.97/etc/
installing std
installing stdcrt
installing vt100
installing vt300
make[2]: Leaving directory `/home/nathanl/devel/buildroot.git/output/build/ncurses-5.7/misc'
make[1]: Leaving directory `/home/nathanl/devel/buildroot.git/output/build/ncurses-5.7'
for i in $(find /home/nathanl/devel/buildroot.git/output/host/usr/i686-unknown-linux-gnu/sysroot/usr/lib* -name "*.la"); do cp -f $i $i~; /usr/bin/sed -i -e "s:\(['= ]\)/usr:\\1/home/nathanl/devel/buildroot.git/output/host/usr/i686-unknown-linux-gnu/sysroot/usr:g" $i; done
>>> ncurses 5.7 Installing to target
mkdir -p /home/nathanl/devel/buildroot.git/output/target/usr/lib
cp -dpf /home/nathanl/devel/buildroot.git/output/build/ncurses-5.7/lib/libncurses.so* /home/nathanl/devel/buildroot.git/output/target/usr/lib/
ln -snf /usr/share/terminfo /home/nathanl/devel/buildroot.git/output/target/usr/lib/terminfo
mkdir -p /home/nathanl/devel/buildroot.git/output/target/usr/share/terminfo/x
cp -dpf /home/nathanl/devel/buildroot.git/output/host/usr/i686-unknown-linux-gnu/sysroot/usr/share/terminfo/x/xterm /home/nathanl/devel/buildroot.git/output/target/usr/share/terminfo/x
cp: cannot stat `/home/nathanl/devel/buildroot.git/output/host/usr/i686-unknown-linux-gnu/sysroot/usr/share/terminfo/x/xterm': No such file or directory
make: *** [/home/nathanl/devel/buildroot.git/output/build/ncurses-5.7/.stamp_target_installed] Error 1
So unexport TERMINFO in the top-level Makefile.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This makes it possible to put empty directories in the overlay.
Thanks to Aras Vaichas for pointing that out.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Just like we have a post-build script mechanism that gets executed
after the build of all packages but before the creation of the
filesystem images, let's introduce a post-image script mechanism, that
gets executed once all filesystem images have been generated.
This can for example be used to call a tool building a firmware image
from different images generated by Buildroot, or automatically extract
the tarball root filesystem image into some location exported by NFS,
or any other custom action.
[Peter: fix image script check]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: Luca Ceresoli <luca@lucaceresoli.net>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Store BR2_DEFCONFIG in .config, and use it to update the original input
defconfig file after updating the configuration. When a config is
created by using the BR2_DEFCONFIG=... option, this is saved in the
.config file; later runs of savedefconfig will update that same location.
It is also possible to configure this place in the interactive
configuration.
The BR2_DEFCONFIG value itself is not saved into the generated
defconfig, since Kconfig considers it at its default. This is
intentional, to avoid hard-coding an absolute path in the defconfig.
It will anyway be set again when the defconfig is used with the
'make BR2_DEFCONFIG=... defconfig' command.
As a side-effect of this change, the *config options have been moved out
of the BR2_HAVE_DOT_CONFIG condition. This doesn't make any functional
difference, because the .config is still not read for the *config targets.
However, the defconfig and savedefconfig targets do need to include
.config now, which makes them slightly slower.
[Peter: slightly tweak help text]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The filesystem overlay is a tree that is copied over the target fs
after building everything - which is currently usually done in the
post-build script.
[Peter: don't ignore missing directories]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
- Use a more descriptive name, the same of the "toolchain" directory.
- Add missing dependencies to be able to successfully use the target
right after the configuration.
- Move to a better position.
- Documentation it in the help target.
- Use toolchain target in the world target
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Reviewed-by: Markos Chandras <markos.chandras at imgtec.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
Acked-by: Samuel Martin <s.martin49 at gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The Eclipse plugin at
https://github.com/mbats/eclipse-buildroot-toolchain-plugin allows
users of Eclipse to easily use the toolchain available in
Buildroot. To do so, this plugin reads
~/.buildroot-eclipse.toolchains, which contains the list of Buildroot
toolchains available on the system, and then offer those toolchains to
compile Eclipse projects.
In order to interface with this plugin, this commit adds an option
that allows the user to tell whether (s)he wants the Buildroot project
toolchain to be visible under this Eclipse plugin. It simply adds a
line in this ~/.buildroot-eclipse.toolchains file.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Several projects use the kernel style O=<dir> syntax to build out of tree,
and atleast uClibc doesn't check that it was explictly passed on the command
line, so setting it in the environment breaks the build.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Support scripts (in support/) may need to parse the .config file, so give
them an easy access to it, by exporting BUILDROOT_CONFIG with the fully-
qualified path to .config.
Also, post-build scripts may need to reference a few locations, so export
those, too.
Note: we export both O and BASE_DIR. Although they are the same, BASE_DIR
is used internally, while O is used on the command line, which makes it a
bit ambiguous to know which to use. As users use O= on the command line,
they will probably tend to use that in their post-build scripts.
Update doc accordingly.
[Peter: fixed typo]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
cc: Peter Korsgaard <jacmet@uclibc.org>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
If this is not done then pkg-config can get confused.
Thomas and Arnout really deserve the credit for this - I just did
the testing.
Signed-off-by: Charles Manning <cdhmanning@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The legacy BR2_PACKAGE_* options in Config.in.legacy are not supposed to
be user selectable, so {rand,allyes}packageconfig shouldn't enable them.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Strip libthread_db the same as any other library, but strip libpthread
with --strip-debug. See the relevant mailing list discussion [1] for
additional details.
[1] http://lists.busybox.net/pipermail/buildroot/2012-October/060126.html
Signed-off-by: Richard Braun <rbraun@sceen.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
As discussed in the BR developer days, we want to be more strict about API
changes in buildroot. I.e., we want to make it less likely that a user's
customizations break down after upgrading buildroot.
A first step is to make sure that the user is warned about API changes.
This patch introduces Makefile.legacy and Config.in.legacy, which will
issue clear error messages for such situations.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Using severals post build scripts is usefull to share
script between severals boards/projects.
[Peter: fix trailing spaces in Config.in]
Signed-off-by: Philippe Reynes <philippe.reynes@sagemcom.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
A very common mistake done by our users is that they use
output/target/ directory as their root filesystem. Even though this is
loudly documented in our Buildroot manual, people don't read
documentation, so it is not sufficient.
This patch adds a text file named
output/target/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM which explains why
output/target isn't appropriate to use as the root filesystem. The
process is:
* At the beginning of the build, right after the skeleton has been
copied, support/misc/target-dir-warning.txt is copied to
output/target/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
* In the filesystem images creation code, this file is removed before
launching fakeroot, and restored right after that, so that this
file is not present in the generated root filesystem images.
Note that the file has not been added to the default skeleton for two
reasons:
* It would have annoying to have in our source tree a file named in
capital letters inside system/skeleton/
* The proposed way works even if the user uses a custom skeleton.
[Peter: fixed typo]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Juha Lumme <juha.lumme@gmail.com>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This directory groups the following elements:
* the default root filesystem skeleton
* the default device tables
* the Config.in options for system configuration (UART port for
getty, system hostname, etc.)
* the make rules to apply the system configuration options
Even though the skeleton and device tables could have lived in fs/, it
would have been strange to have the UART, system hostname and other
related options into fs/. A new system/ directory makes more sense.
As a consequence, this patch also removes target/Makefile.in, which
has become useless in the process.
[Peter: fixup TARGET_SKELETON settings / documentation to match]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Yann E. MORIN <yann.morin.1998@free.fr>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
