If building out-of-tree, add a Makefile wrapper that calls-out to the real
Makefile with proper args.
Avoids having to pass -C and O= every time we call make.
This is highly inspired from how the Linux kernel does it, and portions of
it have been used. We can't use exactly the same implementation as the
kernel does, because:
- the script writing the wrapper has been expunged of the few lines
that were too kernel-related: in buildroot we do not need the version
string in the wrapper, and we do not have a patchlevel version;
- "in-tree build" does not have the same meaning for the kernel and for
buildroot: for the kernel, $(O) point to the $(TOPDIR), while for
buildroot $(O) points to $(TOPDIR)/output.
For more complete explanations, see:
http://lists.busybox.net/pipermail/buildroot/2010-September/037815.html
[Peter: minor tweaks]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The new DL_MODE variable dispatches between the various download
implementations of each method (Git, Subversion, Wget) to deal with the
normal download (default mode, 'DOWNLOAD'), the source-check
('SOURCE_CHECK') and to show the external dependencies for external-deps
('SHOW_EXTERNAL_DEPS').
For the latter, the legacy script wget-show-external-deps.sh is no
longer required as $(WGET) isn't called directly anymore but always
through the DOWNLOAD helper.
Signed-off-by: Maxime Petazzoni <maxime.petazzoni@bulix.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It's not really necessary to differenciate the commands for checking out
or updating a repository. Only the path to the binary and eventual
top-level flags are useful to configure.
Signed-off-by: Maxime Petazzoni <maxime.petazzoni@bulix.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In preparation for the re-work of the DOWNLOAD helper to support
multiple download methods and protocols, the spider feature used with
wget is removed for now until it is re-implemented on top of the new
download methods.
Signed-off-by: Maxime Petazzoni <maxime.petazzoni@bulix.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The previous commit has removed calls to conf_write_autoconf(), which
is the function that generates the KCONFIG_AUTOCONF,
KCONFIG_AUTOHEADER, KCONFIG_TRISTATE files and the split config (with
one file per config item). Therefore, those things were not generated
anymore before the build.
In order to get them generated before the build, we use the same
mechanism as the kernel: run a silentoldconfig when the .config file
is newer than the KCONFIG_AUTOCONF file.
In Buildroot, all those elements are not really used today, except the
split config which is used a little bit in the toolchain build, in a
try to make sure the toolchain gets rebuilt properly when the
configuration changes. It does not seem that this work has been
completed.
However, as we want to keep the same behaviour as previously, we have
to generate all those elements before starting the build.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
savedefconfig allows to create a minimal defconfig file from an
existing configuration. For example :
make O=/path/to/some/buildroot/build/directory savedefconfig
will generate a minimal 'defconfig' file in the main Buildroot source
directory.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Instead of duplicating the definition of KCONFIG_AUTOCONFIG,
KCONFIG_AUTOHEADER and BUILDROOT_CONFIG, let's define them in a
COMMON_CONFIG_ENV variable, which is used by all the xconfig, gconfig,
menuconfig, nconfig, config, oldconfig, randconfig, allyesconfig,
allnoconfig, randpackageconfig, allyespackageconfig,
allnopackageconfig, defconfig, %_defconfig targets.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Our kconfig-to-buildroot2.patch hasn't been kept up to date with all
the changes made into package/config, and a single patch wasn't very
practical to maintain all our changes. Therefore, this commit adds a
package/config/patches directory, which contains a Quilt series of
patches that correspond to our modifications to the kconfig mechanism.
The huge kconfig-to-buildroot2.patch has been split into 16 smaller
patches. The purpose of some of the modifications has been clearly
identified, while some others were not identified.
The 16 patches together do match exactly the old
kconfig-to-buildroot2.patch. We have been very careful in making sure
that we wouldn't loose any of our modifications.
The only modifications made are :
* Instead of renaming the kernel Makefile to Makefile.kconfig and
naming the Buildroot Makefile just 'Makefile', we instead keep the
original package/config/Makefile from the kernel
scripts/kconfig/Makefile and name the Buildroot Makefile
package/config/Makefile.br. The main Buildroot Makefile is modified
accordingly.
* The documentation README.buildroot2 is updated to explain how to
upgrade to a newer version of scripts/kconfig.
* The kconfig-language.txt documentation is removed, as anybody can
easily find it in the kernel sources so there's no need to
duplicate it here.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
There's no need to have a .defconfig, when you run make menuconfig,
make xconfig or anything else for the first time, it will just start
with the default configuration anyway. This is what the kernel does.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Recent versions of ldconfig require the directory /var/lib/ldconfig,
otherwise they bail out with an error. Moreover, having a
/etc/ld.so.conf file also avoids a warning.
In addition to this, we remove the redirection of stderr, so that
errors remain visible to the user.
Thanks to Baruch Siach, Andy Gibbs and Darcy Watkins for investigating
the issue and proposing solutions.
This fixes the build on recent distributions such as Fedora 13 or
Gentoo.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Based on patch by Will Wagner <will_wagner@carallon.com>.
Now that the .config is located in the output directory when O=<dir>
is used, we have to pass the O= option to make for
source/source-check/external-deps to get them to look in the right place
for the .config.
Fix it by introducing an EXTRAMAKEARGS variable and use it whenever we
call back into the toplevel Makefile.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* Remove $(TARGET_DIR)/usr/share/aclocal from target-finalize when not
installing devfiles and
* Remove some (now) redundant cleanup from individual packages
Signed-off-by: Malte Starostik <m-starostik@versanet.de>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Including a bunch of Makefiles with wildcard makes it impossible to add
new toolchain backends. Avoid that by namely including needed files.
The external toolchain still needs to include all the toolchain/*/*.mk
sub-makefiles, as they are needed to build a toolchain that runs on the
target. It is to be noted that the cross-toolchain is not built in this
case, as the make-targets to build the cross-toolchain are not present
in the $(BASE_TARGETS) variable, which is later used to create the
dependency rules.
Also, the comment 'Explicit ordering' has been removed, as it is mis-
leading. It is make's responsibility to create the proper ordering based
on the dependency rules it finds in the Makefiles
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The helper functions used for external toolchains may also be useful
to alternate toolchain backends (currently, the external toolchain is
the sole user).
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Commit ed0d45fdd (Choose host/target ldconfig based on availability)
added a runtime check for a cross-ldconfig being available.
Unfortunately this checks runs too early (at package/Makefile.in parsing
time), so it always fails when using an internal toolchain as ldconfig
isn't built yet.
Fix it by moving the check to the only place it is used (target-finalize).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
We now have for quite some time a configuration cache used to speed-up
the execution of ./configure scripts when compiling programs for the
target. This commit introduces a similar concept when Buildroot
compiles programs for the host.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We don't actually need to explicitly clean the kconfig stuff, as distclean
already removes the entire BUILD_DIR, but fix up the packag/config makefile
to do the right thing if make clean/distclean is called manually for
completeness.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This patch introduces a single, simple, infrastructure to build the
Linux kernel. The configuration is limited to :
* Kernel version: a fixed recent stable version, same as kernel
headers version (for internal toolchains only), custom stable
version, or custom tarball URL
* Kernel patch: either a local file, directory or an URL
* Kernel configuration: either the name of a defconfig or the
location of a custom configuration file
* Kernel image: either uImage, bzImage, zImage or vmlinux.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Make sure we only pass O=<path> if we were originally called like that,
otherwise we might end up looking for the .config in the wrong place.
Likewise, when changing between using O= or not (or simply running
make <blah>_defconfig in a pristine source tree), we do end up having
a .config, but no .config.cmd. It isn't really critical so just continue
even if we couldn't read it.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Support the GTK variant of the graphical kconfig configurator as an
alternative to the Qt3-based one.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Otherwise u-boot tools / kernel modules are only added to target AFTER
the filesystems are built.
Long term u-boot/kernel stuff should get splitted from target/device,
but this is the safest solution for now.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
GNU_HOST_NAME is referred more than 100 times in the tree, used 5
times during startup, and is relatively expensive to run - so make
it a simple expanded variable (:=) rather than recursively expanded
one (=).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
On my target rootfs it is installed documentation for:
atk, cairo, gdk, gdk-pixbuf, gio, glib, gobject, gtk, pango
It ocupies 34M of space. Configure option --disable-gtk-doc doesn't
prevent installation of it. So we should remove them manually if
documentation is disabled.
[Peter: also remove manual rm's from hal/libxml2/libglade]
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Instead of asking the user about the GNU target suffix, just compute
it automatically from the other configuration options.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The definition of TOOLCHAIN_DIR is the same regardless of whether
external or internal toolchains are used. Moreover, move its
definition together with all the other *_DIR definitions.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Instead of having a configuration option BR2_GNU_BUILD_SUFFIX, let's
use config.guess to guess the build system type.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Until now, we had BR2_HAVE_MANPAGES, BR2_HAVE_INFOPAGES and
BR2_HAVE_DOCUMENTATION, but there's no need to have such a
fine-grained control over what documentation gets kept or not.
Therefore, just remove all the documentation (man pages, info pages
and documentation in $(TARGET_DIR)/usr/doc and
$(TARGET_DIR)/usr/share/doc) when BR2_HAVE_DOCUMENTATION is not set.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Strangely enough O is still passed to submakes with MAKEOVERRIDES
(with make 3.81 atleast), the only thing that changes is the output
of the origin function (command line -> environment).
Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
To really make O go away, we have to override it.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Lay down the path to add more than two toolchain kinds:
- check the type of toolchain as:
ifeq (toolchain_buildroot,y)
blabla buildroot-specific
else ifeq (toolchain_external,y)
blabla external-specific
endif
- prefer using positive checks, a-la:
ifeq (foo,y)
instead of:
ifneq (bar,y)
(where foo and bar are mutually exclusive)
- have the toolchain_buildroot case always appear first
- gettext is handled differently, because we want to add an option
only if not using the buildroot toolchain, hence we use ifneq.
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Acked-By: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This fixes the build of libcap, with external toolchain, when it is
the first package being built.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
