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>
(cherry picked from commit ffbe46a529)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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>
(cherry picked from commit 615e2edc2a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit ab5fbbd640)
[Peter: drop 5.0.x bump]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Notice: 4.20.x is now EOL.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Peter: drop 5.0.x bump]
(cherry picked from commit 198b4cff10)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
We will need to build Image files for OpenSBI so allow that now.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit a3a4d4d4d3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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>
(cherry picked from commit 4ed7246a59)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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>
Xenomai has two mutually exclusive cores:
- Cobalt: dual-kernel approach: patched kernel + userland
- Mercury: only userland
In the Cobalt core, not all architectures are supported. This is the source
of the existing ARCH_SUPPORTS variable.
In the Mercury core, there is no imposed architecture restriction.
Rename the XENOMAI_ARCH_SUPPORTS flag to XENOMAI_COBALT_ARCH_SUPPORTS and
move its check from the Xenomai package to the Cobalt core.
Nevertheless, even for Mercury, there are some restrictions:
- pthread_atfork is used, which requires an MMU
- sync functions like __sync_sub_and_fetch and __sync_add_and_fetch are
expected.
As the corresponding 'linux extension' selects Xenomai, we add the
MMU and sync dependencies there too. They may or may not already be covered
by XENOMAI_COBALT_ARCH_SUPPORTS flag.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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>
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>
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>
4.20.x is not a long term support kernel, but 4.19.x is (supported until end
2020):
https://www.kernel.org/category/releases.html
With the upcoming Buildroot 2019.02 release being a LTS release, default to
4.19.x instead.
Notice: The userspace API breakage in net_stamp.h causing build failures has
now been fixed in 4.19.14 by commit e4a2ffe9029fd (net: Use
__kernel_clockid_t in uapi net_stamp.h)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Thomas: add comment in linux/Config.in and
package/linux-headers/Config.in.host so that we don't mistakenly bump
to 4.20+.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
According to https://www.kernel.org/category/releases.html, these kernel
versions are no longer supported, so drop them now that we have added 4.20.x
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
We need to update linux/linux.hash as part of this commit, because
package/linux-headers/linux-headers.hash is a symlink to
linux/linux.hash.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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>
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>
This patch bumps the Linux CIP kernel to version v4.4.154-cip28
Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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>
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>
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>
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>
The Linux tarball checksum was recently updated, including the one for
version 4.9.133. The checksum for this particular version of Linux
misses one character which lead to a build issue as the checksum does
not match:
ERROR: linux-4.9.133.tar.xz has wrong sha256 hash:
ERROR: expected: 3730fc025ba330a6f4908a6a1e4cb86d821000c84167721680ccf1b37b26563
ERROR: got : 53730fc025ba330a6f4908a6a1e4cb86d821000c84167721680ccf1b37b26563
ERROR: Incomplete download, or man-in-the-middle (MITM) attack
This patch fixes it.
Fixes: 0064c7b251 ("{linux, linux-headers}: bump 4.{4, 9, 14, 18}.x series")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Tested-by: Ricardo Martincoski <ricardo.martincoski@datacom.com.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Added a hash file for the Linux kernel. Hashes have been copied
from the appropriate sha256sums.asc files on kernel.org.
The Linux hash file is also shared with the linux-headers package
via a symbolic link.
Signed-off-by: Mark Corbin <mark.corbin@embecosm.com>
[Thomas: update hashes with recent linux-headers changes.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
