Commit Graph

595 Commits

Author SHA1 Message Date
Raphaël Mélotte
b5c553ba59 docs/manual/adding-packages-python.txt: fix outdated Python 3 explanation
Python packages should no longer depend on BR2_PACKAGE_PYTHON in their
config file, unless they are only compatible with Python 2.

Signed-off-by: Raphaël Mélotte <raphael.melotte@essensium.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-09-10 19:29:21 +02:00
Peter Korsgaard
d8e6851f11 Merge branch 'next' 2019-09-03 15:03:02 +02:00
Yann E. MORIN
33c1ef88f8 support/graph-size: add option to sort packages in reverse size order
Currently, the packages are sorted smallest first, and biggest last
(with unknown and others second-to-last and last, resp.).

Add an option to invert the ordering (but keeping unknown and others at
their current positions).

This has the nice side effect that we can now control the colours
assigned to the biggest package(s), as the colours are cycled from the
first to the last. Currently, the biggest packages gets a redish colour,
which is appropriate, but the second gets a greenish one, which is not
as appropriate (but changing that can come later).

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-08-26 22:50:05 +02:00
Yann E. MORIN
1dbce133db support/graph-size: add option to report size with IEC prefixes
When dealing with embedded devices, storage is more often than not some
kind of flash device, on which the memory is usually counted as powers
of 1024 instead of powers of 1000. As such, people may prefer reports
using IEC prefixes [0] instead of the SI prefixes.

Add an option to that effect.

We use argparse's ability to use custom actions [1] [2], to provide a
set of options that act on a boolean, but has a single help entry and
internally ensures consistency of the settings. We could have been using
the more conventional store_true/store_false actions instead, but that
would have meant either two help entries, one for each set of options,
and/or some logic after parse_args() to check the validity of the
settings.

[0] https://en.wikipedia.org/wiki/Binary_prefix
[1] https://docs.python.org/2/library/argparse.html#action
[2] https://docs.python.org/2/library/argparse.html#argparse.Action

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-08-26 22:49:22 +02:00
Yann E. MORIN
e9cdabee71 support/graph-size: add option to change percentage to group in Others
Currently, we group packages that contribute less then 1%, into the
"Other" category.

However, in some cases, there can be a lot of very comparatively small
packages, and they may not exceed this limit, and so only the "Others"
category would be displayed, which is not nice.

Conversely, if there are a lot of packages, most of which only so
slightly exceeding this limit, then we get all of them in the graph,
which is not nice either.

Add a way for the developers to pass a different cut-off limit. As for
the dependency graph which has BR2_GRAPH_DEPS_OPTS, add the environment
variable BR2_GRAPH_SIZE_OPTS to carry those extra option (in preparation
for more to come, later).

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
[Arnout:
 - remove empty base class definition from Config;
 - use parser.error instead of ValueError for invalid argument.]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-08-26 22:44:27 +02:00
Yann E. MORIN
22b7f96752 docs/manual: fix graph-size documentation
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Acked-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-08-17 14:37:34 +02:00
Marcel Patzlaff
f6d1f9584f docs/manual: update pkg-kconfig doc about <pkg>-diff-config
Briefly states what the output of this target is about.

Signed-off-by: Marcel Patzlaff <m.patzlaff@pilz.de>
[Thomas: improve wording]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-08-05 22:37:01 +02:00
Yann E. MORIN
91251cedde docs/manual: document providers from br2-external
Add documentation about how a br2-external tree can provide an external
toolchain or a libjpeg or openssl alternative implementation.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-08-04 00:13:37 +02:00
Yann E. MORIN
f879203cfc core: drop now-useless prepare-kconfig rule
This rule was added back in 9429e7b698 (core: introduce an intermediate
rule before the configurators) when the kconfig-side br2-external file
was generated separately from the Makefile-side one.

Now that they are generated together very early in the Makefile, we no
longer need this intermediate rule. Drop it.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Vadim Kochan <vadim4j@gmail.com>
[Peter: also drop outdated reference in the manual]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-08-03 21:51:40 +02:00
Yann E. MORIN
492d09bab2 core: rename generated .br-external.mk file
Now that the two (all of them!) br2-external related files are generated
in the same location, it makes sense they are named after the same
pattern.

When initial support for (then single) br2-external trees was added back
in a4239f7fd1 (core: introduce the BR2_EXTERNAL variable), it was not
clear-cut why that file was not named with a br2 prefix.

So rename it now.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-08-03 21:51:40 +02:00
Arnout Vandecappelle (Essensium/Mind)
e875c2ffd2 docs/manual: 'Fixes' tag needs a colon
Apparently, patchwork only recognizes the 'Fixes' tag if it is followed
by a colon. So make sure the manual documents it as such.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-07-14 12:13:56 +02:00
Peter Seiderer
74e574c8a6 infra/pkg-meson: allow packages to pass custom compiler/linker flags
Meson does not allow to pass CFLAGS/LDFLAGS/CXXFLAGS via the environment
or via command-line arguments or options (instead, those flags from the
environment are passed to the host compiler, which is seldom what we
need). The only way to pas those flags is via the cross-compilation.conf
file.

Add LIBFOO_CFLAGS, LIBFOO_LDFLAGS and LIBFOO_CXXFLAGS variables to allow
packages to provide their own flags, possibly overriding the generic
ones entirely, as we allow for other infras. Those per-package flags will
then be used to generate the per-package cross-compilation.conf.

This means that the meson infra is the first and only infra for which
FOO_CFLAGS, FOO_LDFLAGS, and FOO_CXXFLAGS are meaningful, while for the
other infras, they are just variables private to the package itself.
Instead of naming those variables after the meson infra (e.g.
FOO_MESON_CFLAGS), we name them with a generic name, as maybe, just
maybe, we could also change the other infras to also recognise those
variables.

Just like for the HOST_MESON_SED_CFLAGS etc., we need to add auxiliary
variables to do convert the shell-formatted argument list into the
JSON-formatted list that meson expects. We can't use a pure-make
construct because the CFLAGS can contain quoting that needs to be
expanded by the shell. Similarly, we need a condition on the strip'ed
variable to avoid passing empty arguments.

To mimic this feature for packages that are built from the SDK, we also
install a templatised version of cross-compilation.conf, with three new
placeholders for custom flags. If a user wants to build a package that
needs custom flags, they can use that template to generate a per-package
cross-compilation.conf.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Adam Duskett <aduskett@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-07-01 09:51:16 +02:00
Jan Kundrát
f52809cbd2 docs: use-case for un-ignoring VCS directories and overridden source dir
Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Suggested-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Fixes: a27078d32d Allow overriding the VCS exclude list with *_OVERRIDE_SRCDIR_RSYNC_EXCLUSIONS
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-06-10 16:49:51 +02:00
Julien Olivain
0c48904f76 manual/contribute.txt: fix typo
Signed-off-by: Julien Olivain <juju@cotds.org>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-06-10 16:47:59 +02:00
Peter Korsgaard
f590097045 Merge branch 'next'
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-06-02 22:11:20 +02:00
Michał Łyszczek
6d89420774 package/pkg-generic.mk: add <pkg>_INSTALL_INIT_OPENRC
* package/pkg-generic.mk
  Add <pkg>_INSTALL_INIT_OPENRC so packages can define their own steps
  to install openrc service scripts.

* docs/manual/adding-packages-generic.txt
  update documentation about new hook.

Signed-off-by: Michał Łyszczek <michal.lyszczek@bofc.pl>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-05-18 23:21:19 +02:00
Charlie Turner
59c3a4ff73 docs/manual: clarify location of local.mk
In particular, the manual was incorrect when the user had selected an
out-of-tree build.

Signed-off-by: Charlie Turner <cturner@igalia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-05-13 20:49:19 +02:00
Mirza Krak
aba08cd218 package/pkg-golang: add support for building host packages
With this you can add:

    $(eval $(host-golang-package))

to a package .mk file to build for host.

Signed-off-by: Mirza Krak <mirza.krak@northern.tech>
Acked-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Tested-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Tested-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-03-17 17:21:10 +01:00
Angelo Compagnucci
8291bc7793 package/go: rename BR2_PACKAGE_HOST_GO_{ARCH_SUPPORTS,CGO_LINKING_SUPPORTS}
The hidden Config.in option BR2_PACKAGE_HOST_GO_ARCH_SUPPORTS name is
not very clear as to whether it says whether Go is available for the
target architecture or the host architecture.

Until now, this was fine since there was support for host Go
packages. But as we are about to introduce support for building host
Go packages, we need to clarify the meaning of
BR2_PACKAGE_HOST_GO_ARCH_SUPPORTS. Since it says whether the target
architecture has support for Go or not, we rename it to
BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS.

And since BR2_PACKAGE_HOST_GO_CGO_LINKING_SUPPORTS is tightly related,
we rename it to BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Tested-by: Adam Duskett <aduskett@gmail.com>
[Thomas: entirely rewrite commit log]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-03-17 17:20:53 +01:00
Arnout Vandecappelle (Essensium/Mind)
71d0cddeac docs/manual: document new behaviour of 'make printvars'
Add a 'VARS=...' setting to the example. To make it clear that several
variables can be specified, use two variables in the first example.
Only 2 variables are printed, so the ... is removed.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-03-12 21:59:00 +01:00
Lionel Orry
a54e58e9b2 package/pkg-python: <pkg>_SUBDIR cleanup
No functional change is brought by this modification.

This patch:
* removes redundant <pkg>_SRCDIR and <pkg>_BUILDDIR declarations
  (already defined in pkg-generic.mk)
* documents the usage of <pkg>_SUBDIR in the python-specific section of
  the manual.

Signed-off-by: Lionel Orry <lionel.orry@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-02-06 17:21:29 +01:00
Lionel Orry
be0bb26f29 package/pkg-meson: <pkg>_SUBDIR cleanup
No functional change is brought by this modification.

This patch:
* removes a redundant <pkg>_SRCDIR declaration (already defined in
  pkg-generic.mk)
* documents the usage of <pkg>_SUBDIR in the meson-specific section of
  the manual.

Signed-off-by: Lionel Orry <lionel.orry@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-02-06 17:21:28 +01:00
Lionel Orry
0496a6a842 package/pkg-waf: add support for <pkg>_SUBDIR
In the Buildroot manual, it is specified that the Waf-based
infrastructure supports the <pkg>_SUBDIR variable, which was not true.

This patch:
* makes use of this variable by changing to the given sub-directory
  before executing waf commands,
* documents the usage of <pkg>_SUBDIR in the waf-specific section of
  the manual.

Signed-off-by: Lionel Orry <lionel.orry@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-02-06 17:21:25 +01:00
Carlos Santos
dc7c6487cf Makefile: check rootfs overlays with BR2_ROOTFS_MERGED_USR enabled
Add a step to target-finalize that checks each rootfs overlay, following
the criteria established for custom skeletons and using the same script
uesd by skeleton-custom.mk.

Add a paragraph to the documentation clarifying that rootfs overlays
don't need to contain /bin, /lib or /sbin and must not contain them when
BR2_ROOTFS_MERGED_USR is enabled.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-02-06 17:09:28 +01:00
Carlos Santos
efc974e686 skeleton-custom: install /bin, /lib, and /sbin
skeleton-custom does not install the required /bin, /lib and /sbin
directories (or symlinks), which may result in an imcomplete tree, The
user could add the required directories/symlinks to the skeleton but
they may be invalid, depending on the state of BR2_ROOTFS_MERGED_USR.

Steps to reproduce:

- Enable BR2_ROOTFS_MERGED_USR and BR2_INIT_SYSTEMD
- Set BR2_ROOTFS_SKELETON_CUSTOM_PATH to "system/skeleton"
- Run "make skeleton"
- target/{bin.lib,sbin} will not exist

Add calls to SYSTEM_USR_SYMLINKS_OR_DIRS to INSTALL_TARGET_CMDS and
INSTALL_STAGING_CMDS, so the required directories or symlinks are
created.

Add a paragraph to the documentation clarifying that custom skeletons
don't need to contain /bin, /lib or /sbin and must not contain them when
BR2_ROOTFS_MERGED_USR is enabled.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-02-06 17:03:43 +01:00
Adam Duskett
e09d29e62f prerequisite.txt: Bump python dependency to 2.7
We now require python 2.7+, so update prerequisite.txt to match.

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-02-04 13:23:32 +01:00
Thomas Petazzoni
9ef15934fe docs/manual: update package-make-target.txt with more targets
This commit updates package-make-target.txt with a few additional
useful per-package targets that have been added in recent times.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-01-29 00:32:11 +01:00
Thomas Petazzoni
74fc5dce22 docs/manual: standardize a bit more the formatting of commit titles
Currently, our commit titles are not very well standardized, and it
would be great to standardize them a little bit more. A number of
people use "<pkg>: " as prefix, others use "package/<pkg>: ". Some
people start the rest of the commit title (after the prefix) with an
upper-case letter, some with a lower-case letter.

In an attempt to standardize this, this commit updates the manual with
some examples of good commit titles.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Carlos Santos <casantos@datacom.com.br>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-01-16 09:23:44 +01:00
Peter Korsgaard
8e928a8389 Makefile, manual, website: Bump copyright year
Happy 2019!

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-01-06 21:30:34 +01:00
Thomas De Schampheleire
81aeab60cd docs/manual: fix typo get-developer (-> get-developers)
The script is utils/get-developers but the manual refers to get-developer in
several places.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-01-03 22:44:43 +01:00
Francois Perrad
b389924498 package/luarocks: add buildroot addon
This addon allows to generate a Buildroot package from a Luarocks
package definition.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-12-31 17:40:58 +01:00
Yann E. MORIN
efb774bbda package/pkg-meson: allow meson packages to specify custom build rules
Some packages may want to build only specific targets, instead of the
default.

So, allow them to provide FOO_NINJA_OPTS (not really options, but we
just mimicked the naming we already have for autotools packages).

Update the manual accordingly.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Cc: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-12-28 11:54:04 +01:00
Thomas Petazzoni
e969f82541 docs/manual: fix typo on Buildroot in adding-packages-waf.txt
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-12-26 22:32:46 +01:00
Johan Oudinet
e16310c15a docs/manual: document <pkg>_KEEP_DEPENDENCIES in rebar-package infra
Signed-off-by: Johan Oudinet <johan.oudinet@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-12-09 17:24:29 +01:00
Philipp Wagner
a6479d6058 docs/manual: add external.desc to list of files needed for BR2_EXTERNAL
external.desc must be present when using a br2-external tree. The
documentation notes this later in the text, but the file is missing
from the initial overview of files.

Fixes bug #11481.

Signed-off-by: Philipp Wagner <mail@philipp-wagner.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-11-02 21:30:13 +01:00
Francois Perrad
fe12a66bde scancpan: add PERL_FOO_DISTNAME in perl-foo.mk
This variable is needed for upgrading packages with scancpan.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2018-10-24 00:22:13 +01:00
Yann E. MORIN
8e293a6386 docs/manual: document location of hash files for multi-versions packages
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-10-20 20:04:06 +02:00
Peter Korsgaard
507d56a6be docs/manual: document the new get-developers -e option
Explain how this can be used with git send-email, and how git can be
configured to use it automatically.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-10-09 14:48:07 +02:00
Arnout Vandecappelle (Essensium/Mind)
e1759f0634 manual: add expected order of 'depends on'
As discussed in [1], our guideline for the ordering of 'depends on'
lines is not written down. Fix that.

[1] http://lists.busybox.net/pipermail/buildroot/2018-October/232413.html

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-10-08 17:43:12 +02:00
Peter Korsgaard
721e4cbb52 Merge branch 'next'
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-09-07 13:13:17 +02:00
Yann E. MORIN
a2e0003141 docs/manual: expand on why using a branch name is not supported
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-25 00:04:40 +02:00
Yann E. MORIN
e0e089acc4 core/pkg-kconfig: allow dependencies before configurators
Some users of kconfig need some packages to be built before their
kconfig infra be used.

For example, the linux kernel, starting with 4.16, needs flex and bison
to generate the parser code. Furthermore, starting with 4.18, it will
also need the cross-compiler before parsing the kconfig stuff, because
that calls the compiler to check its features.

Currently, this is broken, even the flex/bison ones, even though they
are listed, because there is no way to define dependencie that are
guaranteed before the (visual) configurators. For example:

    $ make distclean
    $ make menuconfig
      --> enable the linux kernel, choose a defconfig, save, exit
    $ make linux-menuconfig
    [...]
      HOSTCC  scripts/basic/fixdep
      HOSTCC  scripts/kconfig/conf.o
      YACC    scripts/kconfig/zconf.tab.c
    /bin/sh: bison: command not found
      LEX     scripts/kconfig/zconf.lex.c
    scripts/Makefile.lib:196: recipe for target 'scripts/kconfig/zconf.tab.c' failed
    make[3]: *** [scripts/kconfig/zconf.tab.c] Error 127
    make[3]: *** Waiting for unfinished jobs....
    /bin/sh: flex: command not found
    scripts/Makefile.lib:188: recipe for target 'scripts/kconfig/zconf.lex.c' failed
    make[3]: *** [scripts/kconfig/zconf.lex.c] Error 127
    Makefile:528: recipe for target 'rpc_defconfig' failed
    make[2]: *** [rpc_defconfig] Error 2
    linux/linux.mk:511: recipe for target '/home/ymorin/dev/buildroot/buildroot/output/build/linux-4.17.11/.config' failed
    make[1]: *** [/home/ymorin/dev/buildroot/buildroot/output/build/linux-4.17.11/.config] Error 2
    Makefile:79: recipe for target '_all' failed
    make: *** [_all] Error 2

So, we introduce a new type of dependencies for kconfig-based packages,
that are guaranteed to be built and installed before the (visual)
configurators are called.

Since those dependencies are phony targets and therefore always out of
date, a normal dependency would cause the .config target to be rebuilt
on each invocation of make. So we use an order-only pre-requisite, like
is done for the patch dependency.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-18 23:21:03 +02:00
Yann E. MORIN
c32ad51cbf core/sdk: generate the SDK tarball ourselves
Currently, the wording in the manual instructs the user to generate a
tarball from "the contents of the +output/host+ directory".

This is pretty confusing, because taken literally, this would amount to
running a command like:

    tar cf my-sdk.tar -C output/host/ .

This creates a tarbomb [0], which is very bad practice, because when
extracted, it creates multiple files in the current directory.

What one really wants to do, is create a tarball of the host/ directory,
with something like:

    tar cf my-sdk.tar -C output host/

However, this is not much better, because the top-most directory would
have a very common name, host/, which is pretty easy to get conflict
with when it gets extracted.

So, we fix that mess by giving the top-most directory a recognisable
name, based on the target tuple, which we also use as the name of the
archive (suffixed with the usual +.tar.gz+.) We offer the user the
possibility to override that default by specifying the +BR2_SDK_PREFIX+
variable on the command line.

Since this is an output file, we place it in the images/ directory.

As some users expressed a very strong feeling that they do not want to
generate a tarball at all, and that doing so would badly hurt their
workflows [1], we actually prepare the SDK as was previously done, but
under the new, intermediate rule 'prepare-sdk'. The existing 'sdk' rule
obviously depend on that before generating the tarball.

We choose to make the existing rule to generate the tarball, and
introduce a new rule to just prepare the SDK, rather than keep the
existing rule as-is and introduce a new one to generate the tarball,
because it makes sense to have the simplest rule do the correct thing,
leaving advanced, power users use the longest command. If someone
already had a wrapper that called 'sdk' and expected just the host
directory to be prepared, then this is not broken; it just takes a bit
longer (gzip is pretty fast).

Update the manual accordingly.

[0] https://en.wikipedia.org/wiki/Tar_(computing)#Tarbomb
[1] http://lists.busybox.net/pipermail/buildroot/2018-June/thread.html#223377
    and some messages in the ensuing thread...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Stefan Becker <chemobejk@gmail.com>
Cc: Trent Piepho <tpiepho@impinj.com>
Signed-off-by: &quot;Yann E. MORIN&quot; &lt;<a href="mailto:yann.morin.1998@free.fr" target="_blank">yann.morin.1998@free.fr</a>&gt;<br>
Reviewed-by: Stefan Becker <chemobejk@gmail.com>
Signed-off-by: &quot;Yann E. MORIN&quot; &lt;<a href="mailto:yann.morin.1998@free.fr" target="_blank">yann.morin.1998@free.fr</a>&gt;<br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-14 16:03:48 +02:00
Baruch Siach
27797caf76 docs/manual: update host gcc minimum required version
The oldest gcc that is known to work with current Buildroot is that of
RHEL 6, version 4.4.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-05 14:13:41 +02:00
Fabrice Fontaine
f4b4f77e84 docs/manual: fix scancpan path
scancpan is now in utils not in supports/scripts

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-06-15 10:04:45 +02:00
Yann E. MORIN
529219ba96 docs/manual: always point to the correct license file
The manual is GPL-2, and points to the COPYING file in the repository.
When we do a rendering of the manual for a specific version, that URL
is currently always poitning to the latest version of the COPYING file.

If we ever have to change the content of that file (e.g. to add a new
exception, more clarifications, a license change, or whatever), then
an old manual would point to that newer version, which would then be
incorrect.

Include the sha1 of the commit in the URL, so that the manual always
point to the tree at the time the manual was rendered, not the time
it is consulted. Contrary to the informative text above, use the full
sha1, not the shortened one.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-06-10 16:33:44 +02:00
Peter Korsgaard
8b0fd3cb49 Merge branch 'next'
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-06-02 11:21:20 +02:00
Eric Le Bihan
12e56136e2 docs/manual: document pkg-meson infra
Update documentation about adding meson-based packages with instructions for
using pkg-meson infrastructure.

Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-05-30 21:59:05 +02:00
Yann E. MORIN
970cb26ec2 docs/manual: using a branch name as FOO_VERSION does not work
For various reasons, we've always suggested users to avoid using a
branch as version string for their packages, because it does not work
as a they would expect:

  - it is not reproducible, because the branch may change between two
    builds that are done at different times;

  - it does not even follow the branch, as Buildroot anyway generates
    a local tarball, which it will reuse on subsequent builds.
    Furthermore, since we fetch and not pull, any existing local branch
    is not updated.

Yet, until recently, using a branch name would just work (with the
above limitations): the git tree was cloned, the branch checked out,
and the tarball created.

But with the advent of the git caching, using a branch name does not
work anymore. Indeed, we now do a git-fetch, and that does not create
a local master branch. So we can't check out master, because it does
not exist locally. And for other branches, as noticed above, the local
branch does not get udpated to the remote one.

Furthermore, the local branches are only created by chance, again as a
side-effect of trying to fetch the "special refs".

So, we can't say that we reliably support the use of a branch name.

Update the manual to state that using a branch does not work. Remove
the 'stable' example, as it looked like the name of a stable branch;
instead, replace it with a version string that ressemble a tag.

Fix the layout of the manual by making the version examples an actual
bulleted list.

Note: the above is only entirely true for git. For Mercurial, CVS and
subversion, the status may be mixed, but nonetheless, using branches is
still a bad idea, if at least because it is not reproducible, and
because Buildroot does not even follow the branch. So, we do not
differentiate between the various SCMs, and just flatly state that using
a branch name is not supported.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-05-11 23:03:21 +02:00
Thomas Petazzoni
38860fb21f package/pkg-generic: add check that target variant is defined before host variant
Update the documentation accordingly.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[yann.morin.1998@free.fr: slight rephrasing in error message, update manual]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-04-30 17:43:49 +02:00