Attempting to compile this package with newer Kernel version (e.g. v5.4)
fails with message:
Generating local configuration database from kernel ...Kernel version parse failed!
Upgrading the package to 5.8 fixes this issue. Anyways, v4.4 is now
rather old and beat the very purpose of having newer drivers in older
kernels.
Since backports tag v4.14-rc4-1, the requirement on minimal kernel
version changed from 3.0 to 3.10. See commit [1]. The minimal kernel
version check is changed accordingly.
License files are also updated: the linux backports package copies the
license files from the kernel version used for its generation. v5.8 is
now "GPL-2.0 WITH Linux-syscall-note". However, there is no such SPDX
identifier (contrary to what is said in the COPYING file), so we keep it
as GPL-2.0 (which also keeps it aligned to what we have in linux.mk).
[1] https://git.kernel.org/pub/scm/linux/kernel/git/backports/backports.git/commit/?id=a0d05f9f9ca50ea8b1d60726fac6b54167257e76
Signed-off-by: Julien Olivain <ju.o@free.fr>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Tested-by: Petr Vorel <petr.vorel@gmail.com>
[yann.morin.1998@free.fr: keep license as GPL-2.0, like for linux]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Attempting to compile this package with newer Kernel version (e.g. v5.4)
fails with message:
Generating local configuration database from kernel ...Kernel version parse failed!
Upgrading the package to 5.8 fixes this issue. Anyways, v4.4 is now
rather old and beat the very purpose of having newer drivers in older
kernels.
Since backports tag v4.14-rc4-1, the requirement on minimal kernel
version changed from 3.0 to 3.10. See commit [1]. The minimal kernel
version check is changed accordingly.
License files are also updated: the linux backports package copies the
license files from the kernel version used for its generation. v5.8 is
now "GPL-2.0 WITH Linux-syscall-note". However, there is no such SPDX
identifier (contrary to what is said in the COPYING file), so we keep it
as GPL-2.0 (which also keeps it aligned to what we have in linux.mk).
[1] https://git.kernel.org/pub/scm/linux/kernel/git/backports/backports.git/commit/?id=a0d05f9f9ca50ea8b1d60726fac6b54167257e76
Signed-off-by: Julien Olivain <ju.o@free.fr>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Tested-by: Petr Vorel <petr.vorel@gmail.com>
[yann.morin.1998@free.fr: keep license as GPL-2.0, like for linux]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The commit 05fea6e4a6 "infra/pkg-kconfig:
do not rely on package's .config as a timestamp" broke the kernel
version check of this linux-backports package (it was no longer
executed). Since linux-4.19, the kernel's build system internally
touches its .config file, so it can no longer be used as a stamp file.
The stamp file defined in KCONFIG_STAMP_DOTCONFIG variable of
pkg-kconfig infra need to be used instead.
This commit fixes the kernel version check.
Signed-off-by: Julien Olivain <ju.o@free.fr>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Tested-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Upstream backports package does not define the LEX/YACC Makefile
variables, contrary to the Kernel which is defining those in [1]. The
default "lex" and "yacc" are then used. On some systems, "yacc" is
Berkeley Yacc. Kconfig parser files are using non-Posix Bison
constructs.
Attempting to generate the parser with byacc fails with error:
yacc: e - line 97 of "zconf.y", syntax error
%destructor {
^
This patch defines the LEX and YACC Makefile variable to use flex and
bison, to fix this issue. The host-bison and host-flex dependencies are
added only if the host does not have them, following the same logic of
the Kernel.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=73a4f6dbe70a1b93c11e2d1d6ca68f3522daf434
Signed-off-by: Julien Olivain <ju.o@free.fr>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The check-package script when ran gives warnings on text wrapping
on all of these Config files. This patch cleans up all warnings
related to the text wrapping for the Config files starting with
the letter l in the package directory.
The appropriate indentation is: <tab><2 spaces><62 chars>
See http://nightly.buildroot.org/#writing-rules-config-in for more
information.
Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We want to use SPDX identifier for license strings as much as possible.
SPDX short identifier for GPLv2/GPLv2+ is GPL-2.0/GPL-2.0+.
This change is done by using following command.
find . -name "*.mk" | xargs sed -ri '/LICENSE( )?[\+:]?=/s/\<GPLv2\>/GPL-2.0/g'
Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
linux-backports manually generates its autoconf.h header, which needs a
.config file.
Using a pre- or post-configure hook does not really work, because
generating that file touches the .config, and thus our .stamp files ar
enot longer properly time-ordered and running a subsequent make would
incorrectly believe it has to rebuild linux-backports.
So, even though this is not a fixup proper, we generate that file from
the _KCONFIG_FIXUP_CMDS to ensure the stampt file is created after we
touch .config.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Petr Vorel <petr.vorel@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Romain Naour <romain.naour@openwide.fr>
Tested-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Backports provide drivers released on newer kernels backported for usage
on older kernels.
There are two versions of linux-backports: one that supports Linux
kernels >= 3.0 and one supports even older kernels. We're only packaging
the version that supports >= 3.0.
linux-backports needs to have access to the kernel's .config to extract
information it reintroduces as blind options in generated Kconfig
snippets for its own menuconfig. However, Buildroot offers no way to
express this kind of dependency.
So we need to hand-write a dependency from linux-backports' own .config
to linux' .config .
Since linux.mk has not already been sourced by the time we source
linux-backports.mk, we are missing the definition for LINUX_DIR, so we
can not use it our rule.
Fortunately, make provides so-called "secondary expansion", by which
rules which dependencies include a $$-dereferenced variable wil lbe
re-evaluated after all the rest of the Makefiles have been parsed.
So, we use that secondary expansion to post-pone evaluation of that
dependency so we can use LINUX_DIR.
Note: reconstructing LINUX_DIR by hand does not work, because of the
custom archives, git tree, or override-srcdir.
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Reviewed-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
