Commit Graph

237 Commits

Author SHA1 Message Date
Angelo Compagnucci
e9daff6249 linux: add option to select the CIP real-time kernel
This patch adds Linux CIP RT, the PREEMPT_RT real-time variant maintained
by the CIP team.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-11-26 22:55:10 +01:00
Angelo Compagnucci
988d604bb7 linux: change CIP kernel download method
Downloading from https a tarball is faster than cloning a git repo.
If needed, BR2_LINUX_KERNEL_CUSTOM_GIT can be used as a fallback
mechanism to downlad the CIP kernel with git.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-11-20 21:24:21 +01:00
Pierre-Jean Texier
1fe310e8d9 linux: fix indentation
Fixes:
 $: ./utils/check-package linux/*
 linux/linux.mk:528: expected indent with tabs
 1318 lines processed
 1 warnings generated

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Acked-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-09-30 21:34:46 +02:00
McCabe, Robert J
c26eafa96c linux: allow br2-externals to provide their own Linux extensions
Signed-off-by: McCabe, Robert J <robert.mccabe@rockwellcollins.com>
Acked-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-09-28 22:12:04 +02:00
Christopher McCrory
133b7a1dd9 package/xtables-addons: bump to version 3.4
Add hash for LICENSE.

This version works with linux kernel 5.0 and newer. It requires
CONFIG_NF_NAT enabled in the kernel configuration, otherwise it fails
to build:

ERROR: "nf_nat_setup_info" [/home/thomas/projets/buildroot/output/build/xtables-addons-3.4/extensions/xt_DNETMAP.ko] undefined!

Signed-off-by: Christopher McCrory <chrismcc@gmail.com>
[Thomas: enable CONFIG_NF_NAT in the kernel configuration.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-09-15 21:25:39 +02:00
Titouan Christophe
78e596719f linux: Force CONFIG_NET=y when using mdev+devtempfs for /dev management
Since mdev was switched to the daemon mode introduced in Busybox 1.31.0,
it requires CONFIG_NET to be enabled in the kernel such that the mdev
daemon can listen to netlink events.

Signed-off-by: Titouan Christophe <titouan.christophe@railnova.eu>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-07-31 08:20:11 +02:00
Romain Naour
1713c3c344 linux: disable Werror for powerpc kernels
>From patch [1] included in kernel >= 5.0:
"The upcoming GCC 9 release extends the -Wmissing-attributes warnings
(enabled by -Wall) to C and aliases: it warns when particular function
attributes are missing in the aliases but not in their target.

In particular, it triggers for all the init/cleanup_module
aliases in the kernel (defined by the module_init/exit macros),
ending up being very noisy.

These aliases point to the __init/__exit functions of a module,
which are defined as __cold (among other attributes). However,
the aliases themselves do not have the __cold attribute.

Since the compiler behaves differently when compiling a __cold
function as well as when compiling paths leading to calls
to __cold functions, the warning is trying to point out
the possibly-forgotten attribute in the alias."

Werror is set by default while building ppc kernel [2], but
some warning can be introduced while building current kernel with
newer compiler (for example building kernel 4.19 with gcc 9.1).

For the same reason why we remove Werror in packages's compiler
flags. Building with Werror is not bulletproof when we start
using a newer compiler that introduce new warnings.
This is the case here.

Also this option is a bit strange since it's specific to ppc kernels:
"The intention is to make it harder for people to inadvertantly
introduce warnings in the arch/powerpc code."
Other kernel developers on other arch may be interested by a
similar/more generic option.

So, It's clearly intended for kernel developers.

Instead of backporting this patch [1] to kernel 4.19, select
unconditionally the Kconfig option CONFIG_PPC_DISABLE_WERROR
that allow to disable Werror.

Fixes:
https://gitlab.com/kubu93/toolchains-builder/-/jobs/205435741

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=a6e60d84989fa0e91db7f236eda40453b0e44afa
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=ba55bd74360ea4b8b95e73ed79474d37ff482b36
[3] https://gitlab.com/bootlin/toolchains-builder

Fix-suggested-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-06-22 21:00:34 +02:00
Peter Korsgaard
f26dc16ab4 linux: build after intel-microcode if enabled for early loading support
To support building in (a subset of) the intel-microcode files into the
kernel using the CONFIG_EXTRA_FIRMWARE option, we need to ensure that the
microcode files are installed before the Linux kernel is built.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-05-24 23:15:38 +02:00
Thomas Petazzoni
2a7cf511f4 linux: split calling "all" and "$(LINUX_TARGET_NAME)" targets
In commit ffbe46a529 ("linux: simplify
LINUX_BUILD_CMDS"), we changed LINUX_BUILD_CMDS to essentially do:

  make all $(LINUX_TARGET_NAME)

Unfortunately, it turns out that it breaks the build of a number of
defconfigs, with errors such as:

  fixdep: error opening file: arch/xtensa/boot/lib/.inftrees.o.d: No such file or directory

Calling "all" and "$(LINUX_TARGET_NAME)" as separate make invocations
avoids this problem, and fixes the build of several defconfigs.

Fixes:

  ts7680_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339583

  qemu_xtensa_lx60_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339553

  roseapplepi_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339564

  qemu_xtensa_lx60_nommu_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339554

  qemu_ppc64_e5500_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339539

  freescale_t2080_qds_rdb_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339455

  arcturus_ucp1020_defconfig
  https://gitlab.com/buildroot.org/buildroot/-/jobs/199339399

Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: add comment in the code to explain why we call the two make
targets separately, as suggested by Yann E. Morin]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-04-24 22:46:11 +02:00
Thomas Petazzoni
ffbe46a529 linux: simplify LINUX_BUILD_CMDS
We currently do the Linux build as follows:

   make <imagename>
   if modules enabled; make modules; fi

However, Clement Léger recently reported that due to us not using the
"all" target, the GDB scripts that the kernel can build when
CONFIG_GDB_SCRIPTS is enabled are not built, since upstream kernel
commit 67274c083438340ad16c1437caebc84e1253b224 (merged in v5.1) moved
that logic to a separate scripts_gdb target, which is a dependency of
the "all" target.

While we could add some more logic to explicit generate the
"scripts_gdb" target, this logic would fail on Linux < 5.1 for which
this make target doesn't exist.

So instead, let's simplify the build logic, and use:

  make all <imagename>

The "all" target automatically depends on "modules" if CONFIG_MODULES
is set, so we no longer need to explicit generate the "modules" target
separately.

As a result of this change, we may generate additional kernel images
compared to what was done previously, but such images would anyway not
be installed, and the additional build time is minimal.

We did some research as to why the kernel build was done like this in
Buildroot, and it's been like that since linux/linux.mk was added back
in 2010 by commit 487e21cff6 ("New,
simpler, infrastructure for building the Linux kernel").

Reported-by: Clément Leger <cleger@kalray.eu>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-04-13 17:15:19 +02:00
Stuart Summers
615e2edc2a linux: use host pkg-config when host libelf is set
A patch was added to the Linux kernel in 5.1.0-rc3 which adds a
requirement that the host build environment include pkg-config. Add the
correct host-pkgconf dependency and environment variables to ensure
Linux picks up the correct libraries.

Move the existing LINUX_MAKE_ENV assignment earlier, to simplify the
append-assignment in the libelf conditional block.

Fixes: #11761

Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Suggested-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Arnout: extend commit message as suggested by Yann]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-04-13 17:07:10 +02:00
Arnout Vandecappelle (Essensium/Mind)
4ed7246a59 linux{, -headers}: support downloads of v5+
With the arrival of linux v5.0, we need yet another condition to set
_SITE correctly. Instead of continuing this madness, solve the problem
generically: use v2.6 for 2.6.*, and use the number before the first dot
in the other cases.

While we're at it, remove the comment which has been incorrect since
80d7b68167 (7 years ago).

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Tested-by: Adam Duskett <aduskett@gmail.com>
Reviewed-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-03-14 22:13:47 +01:00
Yann E. MORIN
3ae8dab9e9 linux: don't check hashes for user-supplied patches
We have virtually no way to know the hashes for user-supplied patches,
so we should just ignore them.

Reported-by: Simon van der Veldt <simon.vanderveldt@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Peter Korsgaard <peter@korsgaard.com>
Tested-by: Simon van der Veldt <simon.vanderveldt@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-02-17 15:22:42 +01:00
Angelo Compagnucci
fb26b85b90 linux: bump Linux CIP to version v4.4.171-cip30
This patch bumps the Linux CIP version to v4.4.171-cip30 and updates the
download url to the new official one.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-02-05 17:33:18 +01:00
Titouan Christophe
eb37deb670 linux: add option to enable support for Device Tree overlays
Add an option to compile device trees in Linux with symbol generation
such that device tree overlays can be loaded on the target system

Signed-off-by: Titouan Christophe <titouan.christophe@railnova.eu>
[Arnout: remove "default n" and move setting of LINUX_MAKE_ENV to the
 place where the rest is set.]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-02-03 20:27:41 +01:00
Thomas Petazzoni
71a31b2357 linux: use HOSTCC_NOCCACHE as kconfig HOSTCC
linux is a bit different than other kconfig-package, because it has
"toolchain" in KCONFIG_DEPENDENCIES. Thanks to this, host-ccache *is*
ready by the time kconfig invocations are made, so we could use
$(HOSTCC) as the host compiler for kconfig related operations.

However, for consistency with other kconfig-package packages, we chose
to use $(HOSTCC_NOCCACHE) as well.

We cannot rely on the default value of HOSTCC passed by the
kconfig-package infrastructure, because $(LINUX_MAKE_FLAGS) also
contains a HOSTCC definition that would override the one passed by the
kconfig-package infrastructure.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2019-01-16 23:39:28 +01:00
Carlos Santos
60eb2cec80 pcm-tools: new package
Processor Counter Monitor (PCM) is an application programming interface
(API) and a set of tools based on the API to monitor performance and
energy metrics of Intel(R) Core(TM), Xeon(R), Atom(TM) and Xeon Phi(TM)
processors.

This package contains a patch on the pmu-query.py script to look for the
pcm-core program at the default path. It's not nice to have a Buildroot
specific patch but let's use one while we look for a solution that is
acceptable upstream.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
[Peter: Needs C++, force X86_MSR on in linux]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-12-08 10:44:05 +01:00
Yann E. MORIN
524fb10bbe linux: ensure images/ exist before creating files there
When using an initramfs, on the first-pass build, we create a dummy cpio
so that the build succeeeds. The real cpio will come later, and we'll do
a second-pass build to use the actual cpio.

However, when we touch that dummy cpio, the images/ directory may not
yet exist, since commit d0f4f95e39 (Makefile: rework main directory
creation logic) removed its creation at the begining of the build, to
only at the moment we need it, i.e. during the *_INSTALL_IMAGES_CMDS
steps.

However, the linux build is not a _INSTALL_IMAGES_CMDS step, so there is
no guarantee that images/ already exist at that time.

Fix that by explicitly creating images/ before touching the dummy cpio.

Reported-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Matthew Weber <matthew.weber@rockwellcollins.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-12-06 21:51:23 +01:00
Peter Korsgaard
13c43455a0 Merge branch 'next'
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-12-02 08:16:10 +01:00
Andreas Naumann
860906ee05 linux: Make dtc install step more reliable
Checking for the existence of the dtc binary built by the
non-dependent dtc package may cause instable behaviour when giving more
freedom on the order of how the packages are built (parallelization).

In addidion, when moving to per-package host/target method, the check
would always trigger in the isolated host, leading to linux-dtc always
being installed as dtc.
This in turn may lead to undesired overwriting of the real host-dtc binary
when finally assembling the global host dir.

Thus rework the linux-dtc install condition to be defined by configuration
rather than compile time order.

Signed-off-by: Andreas Naumann <anaumann@ultratronik.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-11-23 22:18:57 +01:00
Carlos Santos
9ca59a6351 linux: enable MICROCODE_INTEL if intel-microcode is selected
We already turn on kernel features for several packages, so let's do it
for intel-microcode too, otherwise it's impossible to load the microcode
(by means of iucode-tools).

Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-11-12 22:27:32 +01:00
Carlos Santos
2c828ed72f linux: enable CONFIG_AUDIT if the audit package is selected
We already turn on kernel features for several packages, so let's do it
for audit too, since the daemon is useless and fails to load otherwise.

Notice that we also turn NET on, since AUDIT depends on NET, like we do
for the wireguard package.

Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-11-03 22:22:05 +01:00
Angelo Compagnucci
551e48a812 linux: add custom linux boot logo option
This patch adds a simple way to change the linux bootup logo.
The patch was kept purposely simple to support only the use cause
where a user needs a color linux boot up logo.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Peter: clarify/reword option/help text, automatically enable framebuffer
	support, fix convert path]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-10-21 18:16:29 +02:00
Yann E. MORIN
3fc990a798 linux: kconfig needs the toolchain
Starting with linux-4.18, the kconfig from the kernel can call
to the compiler to test its capabilities; see:

    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/Kconfig.include

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-20 16:02:27 +02:00
Yann E. MORIN
43ac3c8432 linux: host-{flex, bison} only needed for DTS
host-{flex,bison} are only needed to generate the dtc parser, so we
don't need them if the kernel does not have support for device tree.

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: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-20 16:02:17 +02:00
Yann E. MORIN
b01100cc90 linux: kconfig may need host-{flex, bison} to build the configurators
Rely on the system provided ones if avalable, and only resort to use our
owns if the sytem does not provide them.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-20 16:02:10 +02:00
Yann E. MORIN
9ff4167c8c linux: explain why we need host-{flex, bison}
The commit that added the dependency on host-{bison,flex} did
so because the pre-generated kconfig parser source files were
removed from the kernel tree, in linux-4.16.

But then, in linux-4.17, the pre-generated dtc parser source
files were in turn removed as well.

So, document the two reasons why they are needed, so we don't
accidentally remove them when we (soon) introduce the kconfig
dependencies.

(Also fix the first assignment to LINUX_DEPENDENCIES to be a
simple assignement, not an append-assignment.)

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: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-08-18 23:08:45 +02:00
Thomas Petazzoni
1b53b177a6 linux: replace shell for loop with make foreach loop
This commit replaces the loop copying out-of-tree DTS into the kernel
tree by a make foreach loop instead of a shell for loop. This allows
to error out if one of the DTS file cannot be copied (for example if
it doesn't exist).

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-08-17 16:52:00 +02:00
Romain Naour
9a50447b5d linux: disable attribute alias with gcc >= 8.1
gcc-8 started warning about function aliases that have a non-matching
prototype. This seems rather useful in general, but it causes tons of
warnings in the Linux kernel, where we rely on abusing those aliases
for system call entry points, in order to sanitze the arguments passed
from user space in registers.

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82435

Disable the attribute-alias warning introduced by gcc-8 by adding
-Wno-attribute-alias to KCFLAGS.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-07-20 09:46:05 +02:00
Jan Heylen
63d76c6f2f linux: automatically set CONFIG_PERF_EVENTS when perf is enabled
Perf profiling cannot be used if CONFIG_PERF_EVENTS is not enabled in the
kernel configuration. Similar to other tools, like ktap, we can enable the
right options automatically.

Signed-off-by: Jan Heylen <jan.heylen@nokia.com>
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-07-04 21:52:11 +02:00
Arnout Vandecappelle (Essensium/Mind)
6d3d09e232 linux: don't override HOSTCC for kconfig
Kconfig uses either pkg-config or hard-coded /usr/include paths to find
the ncurses or ncursesw library. If ncursesw is found, it will include
<ncursesw.h>. Since Buildroot's host-ncurses doesn't install a .pc file,
and linux.mk anyway doesn't pass the pkg-config options to find the host
pkg-config files, Kconfig will always find the system's ncursesw.h.

However, since commit dde090c299 (linux: fix passing of host CFLAGS and
LDFLAGS) HOST_LDFLAGS is passed to the linux build system. Thus, if
host-ncurses was already built before 'make linux-menuconfig' is called,
the build will pick up libncurses from the host directory, which is NOT
widechar. Thus, two different ncurses configurations are mixed into the
final mconf program. This will result in serious breakage in the
rendering of the menus (lots of @ and question mark characters).

As a workaround (suggested by Yann), don't pass HOST_CFLAGS and
HOST_LDFLAGS when running kconfig commands. For kconfig, we should never
need host packages anyway. This way, the kconfig calls will always use
the system's ncurses and never our host-ncurses.

Note that the same problem could pop up for other kconfig packages as
well if we ever pass HOST_CFLAGS/HOST_LDFLAGS to them. We could force
HOSTCC=$(HOSTCC) directly in kconfig-package. However, for now there
are no other packages that exhibit this problem, so this can be
revisited when they do.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: David De Grave <david.degrave@essensium.com>
Cc: Scott Fan <fancp2007@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Tested-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-05-17 20:54:10 +02:00
Peter Korsgaard
978a997c81 linux: ensure correct make targets are used for cuImage/simpleImage.<dtb>
Fixes https://gitlab.com/buildroot.org/buildroot/-/jobs/66561794

LINUX_DTS_NAME may end up with a leading space because of the += logic, and
may contain multiple dts files - Neither of which works when we construct
the {cu,simple}Image.$(LINUX_DTS_NAME) make target name.

Fix it by using the first word in the variable.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-05-06 17:35:00 +02:00
Bernd Kuhls
1b9faedf32 linux: bump default to version 4.16
Added host-bison and host-flex as dependencies after upstream removed
pre-generated files and switched over to build-time generation, for
details see:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=033dba2ec06c47a9fe1b190bc3281058fb20738d
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29c833061c1d8c2d1d23a62e7061561eadd76cdb

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Tested-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-04-09 21:19:30 +02:00
Ricardo Martincoski
a338f59e16 linux/linux.mk: use namespace for internal variables
These three symbols:
KERNEL_ARCH_PATH
KERNEL_DTBS
KERNEL_DTS_NAME
are defined and used only inside this file, so use the LINUX_ namespace
for them instead of KERNEL_.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-04-01 08:44:56 +02:00
Ricardo Martincoski
0b0d93fe70 linux/linux*.mk: fix code style
Use only one space before backslash.
Remove consecutive empty line.
Indent with tabs.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-04-01 08:43:42 +02:00
Rafal Susz
54157c6c2d package/linux: fix custom dts files handling
Custom dts files are still conditionally copied based on non existing
boolean. So it is currently not possible to use custom dts file(s) at all.

List of dts files is now iterated and files are copied into dedicated kernel arch dir.

Signed-off-by: Rafal Susz <rafal.susz@gmail.com>
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-03-31 22:59:47 +02:00
Yann E. MORIN
f142f23ecf package/linux: drop useless intermediate DTS booleans
Just use whatever the user specified in the list. An empty list means no
DTS was specified.

No need to add legacy option, as the behaviour does not change.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Simon van der Veldt <simon.vanderveldt@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Joshua Henderson <joshua.henderson@microchip.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-03-08 09:08:15 +01:00
Thomas Petazzoni
f7cd72b3d4 linux: add BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF
Some Linux kernel configuration options (such as CONFIG_UNWINDER_ORC)
require building a host program that needs libelf.

Users who have libelf installed on their system won't see a problem,
but users who don't have libelf installed will get a build
failure. Therefore, this commit adds an option that allows a user to
indicate that his Linux kernel configuration requires libelf. When
this option is enabled, we add host-elfutils to the dependencies of
the linux package (host-elfutils provides the libelf library).

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-03-06 15:25:08 +01:00
Thomas Petazzoni
93a7edf4bc linux: add BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL
Some Linux kernel configuration options (such as
CONFIG_SYSTEM_TRUSTED_KEYRING) require building a host program called
extract-cert, which itself needs OpenSSL.

Users having OpenSSL installed on their system won't see a problem,
but users who don't have OpenSSL installed will get a build
failure. This commit adds a new option that allows users to indicate
that their Linux configuration requires building host-openssl.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-03-06 15:25:08 +01:00
Thomas Petazzoni
dde090c299 linux: fix passing of host CFLAGS and LDFLAGS
We were passing HOSTCFLAGS="$(HOSTCFLAGS)" to Linux. However:

 - HOSTCFLAGS in Buildroot doesn't exist, and is empty, so this
   assignment never did anything. The name of the variable in
   Buildroot in HOST_CFLAGS.

 - HOSTCFLAGS in Linux isn't used everywhere, and passing it overrides
   the default HOSTCFLAGS value defined in the main Linux kernel
   Makefile.

In addition, there is no way to pass additional host LDFLAGS in the
Linux kernel build system.

Therefore, we simply shoehorn our HOST_CFLAGS and HOST_LDFLAGS while
passing HOSTCC to the Linux kernel build system. This has been tested
to work fine with host OpenSSL and host libelf only available in
$(HOST_DIR).

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Frank Hunleth <fhunleth@troodon-software.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-03-06 15:25:08 +01:00
Simon van der Veldt
382fe9f926 linux: allow both in-tree and custom dts files
For some boards, for example the Raspberry Pi, it's necessary to build
in-tree dts files as well as custom/out of tree dts-files (dt-blob.bin).
The existing logic made these two options exclusive, this commit changes
that to allow both in-tree as well as custom sources for dts files.

Signed-off-by: Simon van der Veldt <simon.vanderveldt@gmail.com>
[Arnout: re-wrap help, add extra empty line, change = into +=]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2018-02-25 17:19:11 +01:00
Peter Korsgaard
4fdf2d642b sunxi-mali-mainline-driver: new package
Add allwinner mali kernel driver package.  Used in combination with
userspace Allwinner openGL libraries, it gives possibility to use 3D openGL
SoC acceleration.

[Peter: Rename to sunxi-mali-mainline-driver.  Use revision selection from
	sunxi-mali-mainline package.  Depend on that package and default to
	y if dependencies are met. Tweak Linux config]
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-02-15 21:44:55 +01:00
Yann E. MORIN
cef77a6cf5 linux: meddle not in the internals of filesystems
Currently, the rule to rebuild the Linux kernel with an initramfs
directly depends on the path of the file of the intermediate cpio image.

This is inherently "bad" from a purity point of view; linux.mk should
not have to delve into the fs internals.

Rather, make it directly depend on the "frontal" rule that generates the
cpio image.

Drop the comment for linux-rebuild-with-initramfs, it was misleading
(talking about generating "the initramfs list of files", which is not
what was done, since we use a cpio as source of initramfs, not a list of
files).

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>
Cc: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-11-30 11:49:07 +01:00
Yann E. MORIN
6426f64176 linux: split overly-long dependency line for readability
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>
2017-11-30 11:40:59 +01:00
Cam Hutchison
712f81fb3c linux: Deselect all unconfigured compression options
The LINUX_KCONFIG_FIXUP_CMDS are meant to deselect any compression
option that are not selected in the buildroot configuration. But it only
deselects the last one in the list instead of all of them because it
overwrites the LINUX_COMPRESSION_OPT_ variable instead of appending to
it. Only the last option set to that variable gets deselected.

This produces the warning:

.config:2216:warning: override: KERNEL_GZIP changes choice state

is emitted when buildroot runs olddefconfig when buildroot configures a
kernel with a custom config that has a different kernel compression
option set to what is configured in buildroot.

Accumulate all the deselected compression options instead of overwriting
them to ensure all non-selected options get deselected..

Signed-off-by: Cam Hutchison <camh@xdna.net>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2017-10-21 20:20:45 +02:00
Aurélien Chabot
5a47141ebb wireguard: add new package
[Peter: Fix help text, drop suboptions, drop patches, fix dependencies,
 handle optional bash dependency, use kernel-module infrastructure,
 enable needed kernel options]
Signed-off-by: Aurélien Chabot <aurelien@chabot.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2017-10-02 22:59:26 +02:00
Luis Araneda
ff4cccbdcf linux: Fix URL for release candidate versions
Starting with 4.12-rc1, tarballs are generated by cgit directly from
Linus's tree. This also implies that no .tar.xz can be used for them.

This method also applies to older release candidates.

Signed-off-by: Luis Araneda <luaraneda@gmail.com>
[Arnout: added comment in the code]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2017-08-11 12:35:16 +02:00
Max Filippov
b7310c8d07 linux: apply xtensa overlay
Xtensa core configuration must be added to linux before it can be
built for that xtensa CPU variant. Extract configuration files from the
xtensa overlay as is done for other packages that need to be configured
for a specific xtensa core.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-09 17:03:37 +02:00
Arnout Vandecappelle
0f9c0bf3d5 Globally replace $(HOST_DIR)/usr/bin with $(HOST_DIR)/bin
Since things are no longer installed in $(HOST_DIR)/usr, the callers
should also not refer to it.

This is a mechanical change with
git grep -l '$(HOST_DIR)/usr/bin' | xargs sed -i 's%$(HOST_DIR)/usr/bin%$(HOST_DIR)/bin%g'

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-05 15:19:29 +02:00
Arnout Vandecappelle
ba0a5b11d9 linux: exclude from hash check except for latest version
We don't have a hash for any linux version. We currently also don't
have a hash for the latest version, but if we ever add a hash, it
will only be for the latest version.

This simplifies the code a little because soon we will add hash checks
for git as well, so we also need an exclusion in that case. It's much
easier to always exclude except in the single case where we do have a
hash.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-06-11 14:13:59 +02:00