update buildroot to 2017.02.11

This commit is contained in:
jbnadal
2018-05-22 15:35:47 +02:00
parent 4bf1f5e091
commit a3c10bd762
9257 changed files with 433426 additions and 1701 deletions

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@@ -0,0 +1,45 @@
From 63a3f603413ffe82ad775f2d62a5afff87fd94a0 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Thu, 7 Feb 2013 17:14:08 -0800
Subject: [PATCH] timeconst.pl: Eliminate Perl warning
defined(@array) is deprecated in Perl and gives off a warning.
Restructure the code to remove that warning.
[ hpa: it would be interesting to revert to the timeconst.bc script.
It appears that the failures reported by akpm during testing of
that script was due to a known broken version of make, not a problem
with bc. The Makefile rules could probably be restructured to avoid
the make bug, or it is probably old enough that it doesn't matter. ]
Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Gustavo Zacarias <gustavo.zacarias@free-electrons.com>
---
Patch status: upstream
kernel/timeconst.pl | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/timeconst.pl b/kernel/timeconst.pl
index eb51d76..3f42652 100644
--- a/kernel/timeconst.pl
+++ b/kernel/timeconst.pl
@@ -369,10 +369,8 @@ if ($hz eq '--can') {
die "Usage: $0 HZ\n";
}
- @val = @{$canned_values{$hz}};
- if (!defined(@val)) {
- @val = compute_values($hz);
- }
+ $cv = $canned_values{$hz};
+ @val = defined($cv) ? @$cv : compute_values($hz);
output($hz, @val);
}
exit 0;
--
2.4.10

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menu "Linux Kernel Extensions"
#-------------------------------------------------------------------------------
# Xenomai
config BR2_LINUX_KERNEL_EXT_XENOMAI
bool "Adeos/Xenomai Real-time patch"
depends on BR2_PACKAGE_XENOMAI_ARCH_SUPPORTS
depends on BR2_TOOLCHAIN_HAS_THREADS
depends on !BR2_TOOLCHAIN_USES_MUSL
select BR2_PACKAGE_XENOMAI
help
Xenomai is split in two parts: a kernel part and a userspace
part. Enabling this option automatically selects the Xenomai
package and helps in patching the Linux kernel built by
Buildroot with the Xenomai kernel part (ie Adeos/Ipipe).
You can find the currently supported kernel versions by
looking at the available patches in the Xenomai sources
tree: ksrc/arch/$(ARCH)/patches
However, it is recommended to use the latest version of the
Adeos/Ipipe patch available at
http://download.gna.org/adeos/patches
Xenomai is know to support Blackfin, SH4, x86, ARM, NIOS2
and PowerPC architectures.
config BR2_LINUX_KERNEL_EXT_XENOMAI_ADEOS_PATCH
string "Path for Adeos patch file"
depends on BR2_LINUX_KERNEL_EXT_XENOMAI
help
Optionally, explicitly specify the Adeos patch to use.
Download it at http://download.gna.org/adeos/patches
and verify that your kernel version in buildroot matches.
comment "xenomai needs a uClibc or glibc toolchain w/ threads"
depends on BR2_PACKAGE_XENOMAI_ARCH_SUPPORTS
depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_TOOLCHAIN_USES_MUSL
#-------------------------------------------------------------------------------
# RTAI
config BR2_LINUX_KERNEL_EXT_RTAI
bool "RTAI Real-time patch"
select BR2_PACKAGE_RTAI
help
RTAI Kernel part.
#-------------------------------------------------------------------------------
# ev3dev Linux drivers
config BR2_LINUX_KERNEL_EXT_EV3DEV_LINUX_DRIVERS
bool "ev3dev Linux drivers"
select BR2_PACKAGE_EV3DEV_LINUX_DRIVERS
help
Linux drivers for LEGO MINDSTORMS EV3 from the ev3dev project.
https://github.com/ev3dev/lego-linux-drivers
#-------------------------------------------------------------------------------
# fbtft
config BR2_LINUX_KERNEL_EXT_FBTFT
bool "FB TFT drivers"
select BR2_PACKAGE_FBTFT
help
Linux Framebuffer drivers for small TFT LCD display modules,
e.g. Adafruit PiTFT displays for Raspberry Pi (this extra
package is only needed for linux kernels until v3.19, since
v4.0 the drivers are included in the staging area).
To enable fbtft, e.g. for Adafruit 2.8 PiTFT, enable the
following kernel configurations:
- CONFIG_SPI
- CONFIG_GPIOLIB
- CONFIG_FB
- CONFIG_FB_TFT
- CONFIG_FB_TFT_ILI9341
https://github.com/notro/fbtft
# aufs-standalone
config BR2_LINUX_KERNEL_EXT_AUFS
bool "Aufs Filesystem Module patch"
select BR2_PACKAGE_AUFS
help
Aufs is split in two parts: a kernel part and a userspace
part. Enabling this option automatically selects the aufs
standalone (module) package and patches the Linux kernel
built by Buildroot with the aufs kernel part (ie fs/aufs).
It is important to use the correct branch of aufs-standalone.
if BR2_LINUX_KERNEL_EXT_AUFS
choice
bool "aufs-standalone series"
help
Select the major series of this version. This must match the
major version of your kernel (e.g. for kernels 3.x, select
aufs3.x; for kernels 4.x, select aufs4.x).
Note: neither aufs1.x nor aufs2.x (both for kernels older than
3.x) are supported.
config BR2_LINUX_KERNEL_EXT_AUFS_SERIES_3
bool "aufs3.x"
config BR2_LINUX_KERNEL_EXT_AUFS_SERIES_4
bool "aufs4.x"
endchoice
config BR2_LINUX_KERNEL_EXT_AUFS_SERIES
int
default 3 if BR2_LINUX_KERNEL_EXT_AUFS_SERIES_3
default 4 if BR2_LINUX_KERNEL_EXT_AUFS_SERIES_4
config BR2_LINUX_KERNEL_EXT_AUFS_VERSION
string "aufs-standalone version"
default ""
help
The version you choose must match that of your kernel. Usually,
the sha1 of the cset you want to use; avoid using a branch name
as this yields non-reproducible builds.
See the following resources to see what versions are available:
For aufs3.x: https://sourceforge.net/p/aufs/aufs3-standalone/ref/master/branches/
For aufs4.x: https://github.com/sfjro/aufs4-standalone/branches/all
endif # aufs
endmenu

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@@ -0,0 +1,406 @@
menu "Kernel"
config BR2_LINUX_KERNEL
bool "Linux Kernel"
help
Enable this option if you want to build a Linux kernel for
your embedded device
if BR2_LINUX_KERNEL
# Packages that need to have a kernel with support for loadable modules,
# but do not use the kernel-modules infrastructure, should select that
# option.
config BR2_LINUX_NEEDS_MODULES
bool
#
# Version selection. We provide the choice between:
#
# 1. A single fairly recent stable kernel version
# 2. A custom stable version
# 3. A custom tarball
# 4. A set of custom repository locations
#
choice
prompt "Kernel version"
config BR2_LINUX_KERNEL_LATEST_VERSION
bool "Latest version (4.9.13)"
config BR2_LINUX_KERNEL_CUSTOM_VERSION
bool "Custom version"
help
This option allows to use a specific official version from
kernel.org, like 2.6.x, 2.6.x.y, 3.x.y, ...
Note: you cannot use this option to select a _longterm_ 2.6
kernel, because these kernels are not located at the standard
URL at kernel.org. Instead, select "Custom tarball" and
specify the right URL directly.
config BR2_LINUX_KERNEL_CUSTOM_TARBALL
bool "Custom tarball"
help
This option allows to specify a URL pointing to a kernel source
tarball. This URL can use any protocol recognized by Buildroot,
like http://, ftp://, file:// or scp://.
When pointing to a local tarball using file://, you may want to
use a make variable like $(TOPDIR) to reference the root of the
Buildroot tree.
config BR2_LINUX_KERNEL_CUSTOM_GIT
bool "Custom Git repository"
help
This option allows Buildroot to get the Linux kernel source
code from a Git repository.
config BR2_LINUX_KERNEL_CUSTOM_HG
bool "Custom Mercurial repository"
help
This option allows Buildroot to get the Linux kernel source
code from a Mercurial repository.
config BR2_LINUX_KERNEL_CUSTOM_SVN
bool "Custom Subversion repository"
help
This option allows Buildroot to get the Linux kernel source
code from a Subversion repository.
endchoice
config BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE
string "Kernel version"
depends on BR2_LINUX_KERNEL_CUSTOM_VERSION
config BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION
string "URL of custom kernel tarball"
depends on BR2_LINUX_KERNEL_CUSTOM_TARBALL
if BR2_LINUX_KERNEL_CUSTOM_GIT || BR2_LINUX_KERNEL_CUSTOM_HG || BR2_LINUX_KERNEL_CUSTOM_SVN
config BR2_LINUX_KERNEL_CUSTOM_REPO_URL
string "URL of custom repository"
default BR2_LINUX_KERNEL_CUSTOM_GIT_REPO_URL \
if BR2_LINUX_KERNEL_CUSTOM_GIT_REPO_URL != "" # legacy
config BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION
string "Custom repository version"
default BR2_LINUX_KERNEL_CUSTOM_GIT_VERSION \
if BR2_LINUX_KERNEL_CUSTOM_GIT_VERSION != "" # legacy
help
Revision to use in the typical format used by Git/Mercurial/Subversion
E.G. a sha id, a tag, branch, ..
endif
config BR2_LINUX_KERNEL_VERSION
string
default "4.9.13" if BR2_LINUX_KERNEL_LATEST_VERSION
default BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE \
if BR2_LINUX_KERNEL_CUSTOM_VERSION
default "custom" if BR2_LINUX_KERNEL_CUSTOM_TARBALL
default BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION \
if BR2_LINUX_KERNEL_CUSTOM_GIT || BR2_LINUX_KERNEL_CUSTOM_HG || BR2_LINUX_KERNEL_CUSTOM_SVN
#
# Patch selection
#
config BR2_LINUX_KERNEL_PATCH
string "Custom kernel patches"
help
A space-separated list of patches to apply to the
kernel. Each patch can be described as an URL, a local file
path, or a directory. In the case of a directory, all files
matching *.patch in the directory will be applied.
#
# Configuration selection
#
choice
prompt "Kernel configuration"
default BR2_LINUX_KERNEL_USE_DEFCONFIG
config BR2_LINUX_KERNEL_USE_DEFCONFIG
bool "Using an in-tree defconfig file"
config BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG
bool "Use the architecture default configuration"
help
This option will use the default configuration for the
selected architecture. I.e, it is equivalent to running
"make ARCH=<foo> defconfig". This is useful on architectures
that have a single defconfig file, such as ARM64.
config BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG
bool "Using a custom (def)config file"
endchoice
config BR2_LINUX_KERNEL_DEFCONFIG
string "Defconfig name"
depends on BR2_LINUX_KERNEL_USE_DEFCONFIG
help
Name of the kernel defconfig file to use, without the
trailing _defconfig. The defconfig is located in
arch/<arch>/configs in the kernel tree.
config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
string "Configuration file path"
depends on BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG
help
Path to the kernel configuration file
Note: this can be a defconfig file or a complete .config file,
which can later be saved back with make linux-update-(def)config.
config BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES
string "Additional configuration fragment files"
help
A space-separated list of kernel configuration fragment files,
that will be merged to the main kernel configuration file.
#
# Binary format
#
config BR2_LINUX_KERNEL_UBOOT_IMAGE
bool
choice
prompt "Kernel binary format"
default BR2_LINUX_KERNEL_ZIMAGE if BR2_arm || BR2_armeb
config BR2_LINUX_KERNEL_UIMAGE
bool "uImage"
depends on BR2_arc || BR2_arm || BR2_armeb || BR2_bfin || \
BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le || \
BR2_sh || BR2_mips || BR2_mipsel || \
BR2_mips64 || BR2_mips64el
select BR2_LINUX_KERNEL_UBOOT_IMAGE
config BR2_LINUX_KERNEL_APPENDED_UIMAGE
bool "uImage with appended DT"
depends on BR2_arm || BR2_armeb
select BR2_LINUX_KERNEL_DTS_SUPPORT
select BR2_LINUX_KERNEL_APPENDED_DTB
select BR2_LINUX_KERNEL_UBOOT_IMAGE
config BR2_LINUX_KERNEL_BZIMAGE
bool "bzImage"
depends on BR2_i386 || BR2_x86_64
config BR2_LINUX_KERNEL_ZIMAGE
bool "zImage"
depends on BR2_arm || BR2_armeb || BR2_powerpc || \
BR2_powerpc64 || BR2_powerpc64le || BR2_sparc || \
BR2_sh || BR2_xtensa
config BR2_LINUX_KERNEL_ZIMAGE_EPAPR
bool "zImage.epapr"
depends on BR2_powerpc64 || BR2_powerpc64le
config BR2_LINUX_KERNEL_APPENDED_ZIMAGE
bool "zImage with appended DT"
depends on BR2_arm || BR2_armeb
select BR2_LINUX_KERNEL_DTS_SUPPORT
select BR2_LINUX_KERNEL_APPENDED_DTB
config BR2_LINUX_KERNEL_CUIMAGE
bool "cuImage"
depends on BR2_powerpc
select BR2_LINUX_KERNEL_UBOOT_IMAGE
select BR2_LINUX_KERNEL_DTS_SUPPORT
select BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
config BR2_LINUX_KERNEL_SIMPLEIMAGE
bool "simpleImage"
depends on BR2_microblaze
select BR2_LINUX_KERNEL_UBOOT_IMAGE
select BR2_LINUX_KERNEL_DTS_SUPPORT
select BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
config BR2_LINUX_KERNEL_IMAGE
bool "Image"
depends on BR2_aarch64
config BR2_LINUX_KERNEL_LINUX_BIN
bool "linux.bin"
depends on BR2_microblaze
select BR2_LINUX_KERNEL_UBOOT_IMAGE
config BR2_LINUX_KERNEL_VMLINUX_BIN
bool "vmlinux.bin"
depends on BR2_mips || BR2_mipsel || BR2_sh
config BR2_LINUX_KERNEL_VMLINUX
bool "vmlinux"
config BR2_LINUX_KERNEL_VMLINUZ
bool "vmlinuz"
depends on BR2_mips || BR2_mipsel
config BR2_LINUX_KERNEL_VMLINUZ_BIN
bool "vmlinuz.bin"
depends on BR2_mips || BR2_mipsel
config BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM
bool "custom target"
help
For certain cases a board-specific target image must be
used. For example, on powerPC where the OpenFirmware
description is attached in a board-specific kernel image
target like 'cuImage.mpc8379_rdb'.
Select this option and specify the make target in "Kernel
image target name".
endchoice
#
# Kernel compression format
#
choice
prompt "Kernel compression format"
help
This selection will just ensure that the correct host tools are built.
The actual compression for the kernel should be selected in the
kernel configuration menu.
config BR2_LINUX_KERNEL_GZIP
bool "gzip compression"
config BR2_LINUX_KERNEL_LZ4
bool "lz4 compression"
config BR2_LINUX_KERNEL_LZMA
bool "lzma compression"
config BR2_LINUX_KERNEL_LZO
bool "lzo compression"
config BR2_LINUX_KERNEL_XZ
bool "xz compression"
endchoice
config BR2_LINUX_KERNEL_IMAGE_TARGET_NAME
string "Kernel image target name"
depends on BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM
help
Specify the kernel make target to build the kernel that you
need.
config BR2_LINUX_KERNEL_IMAGE_NAME
string "Kernel image name"
depends on BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM
help
The filename of the kernel image, if it is different from the
make target (above). Only Xtensa uses a filename different from
the make target. Defaults to BR2_LINUX_KERNEL_IMAGE_TARGET_NAME.
If unsure, leave it empty.
config BR2_LINUX_KERNEL_UIMAGE_LOADADDR
string "load address (for 3.7+ multi-platform image)"
depends on BR2_arm || BR2_armeb
depends on BR2_LINUX_KERNEL_UIMAGE || BR2_LINUX_KERNEL_APPENDED_UIMAGE
help
If your ARM system's Linux kernel is configured with the new (3.7+)
multi-architecture support (CONFIG_ARCH_MULTIPLATFORM=y in your
kernel config), then it is necessary to specify a kernel load address
when building the uImage. This should be a hexadecimal string
beginning with 0x, for example: 0x00008000.
If unsure, let this option empty.
config BR2_LINUX_KERNEL_DTS_SUPPORT
bool "Build a Device Tree Blob (DTB)"
help
Compile one or more device tree sources into device tree blobs.
Select the dts files to compile in the options below.
if BR2_LINUX_KERNEL_DTS_SUPPORT
# We have mainly three cases when it comes to device tree support:
# 1) We don't want any support at all. Then the ..DTS_SUPPORT
# variable won't be set
# 2) We want device tree support, so we need the user to enter the
# device tree name or the path to the custom device he uses, but
# the kernel abstracts this from us and only build an image that
# looks like a regular kernel image. In this case, we only need
# to derive the kernel image name from the given device tree
# name, and all the rest is as usual
# 3) We want device tree support, but the kernel requires us to
# build the device tree blob separately. In this case, some
# more logic will be needed.
# The variable below address the second case, were you only want
# limited actions from buildroot.
config BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
bool
config BR2_LINUX_KERNEL_APPENDED_DTB
bool
choice
prompt "Device tree source"
default BR2_LINUX_KERNEL_USE_INTREE_DTS
config BR2_LINUX_KERNEL_USE_INTREE_DTS
bool "Use a device tree present in the kernel."
help
Use a device tree source distributed with
the kernel sources. The dts files are located
in the arch/<arch>/boot/dts folder.
config BR2_LINUX_KERNEL_USE_CUSTOM_DTS
bool "Use a custom device tree file"
help
Use a custom device tree file, i.e, a device
tree file that does not belong to the kernel
source tree.
endchoice
config BR2_LINUX_KERNEL_INTREE_DTS_NAME
string "Device Tree Source file names"
depends on BR2_LINUX_KERNEL_USE_INTREE_DTS
help
Name of the device tree source file, without
the trailing .dts. You can provide a list of
dts files to build, separated by spaces.
config BR2_LINUX_KERNEL_CUSTOM_DTS_PATH
string "Device Tree Source file paths"
depends on BR2_LINUX_KERNEL_USE_CUSTOM_DTS
help
Path to the device tree source files. You can
provide a list of dts paths to copy and build,
separated by spaces.
endif
config BR2_LINUX_KERNEL_INSTALL_TARGET
bool "Install kernel image to /boot in target"
depends on !BR2_TARGET_ROOTFS_INITRAMFS
help
Select this option to have the kernel image installed to
/boot in the target root filesystem, as is typically done on
x86/x86_64 systems.
Note that this option also installs the Device Tree Blobs to
/boot if DTBs have been generated by the kernel build
process.
# Linux extensions
source "linux/Config.ext.in"
# Linux tools
source "package/linux-tools/Config.in"
endif # BR2_LINUX_KERNEL
endmenu

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@@ -0,0 +1,21 @@
################################################################################
# Linux Aufs extensions
#
# Patch the linux kernel with aufs extension
################################################################################
LINUX_EXTENSIONS += aufs
define AUFS_PREPARE_KERNEL
if test -d $(@D)/fs/aufs/; then \
echo "Your kernel already supports AUFS."; \
exit 1; \
fi
$(APPLY_PATCHES) $(@D) $(AUFS_DIR) \
aufs$(BR2_PACKAGE_AUFS_SERIES)-kbuild.patch \
aufs$(BR2_PACKAGE_AUFS_SERIES)-base.patch \
aufs$(BR2_PACKAGE_AUFS_SERIES)-mmap.patch \
aufs$(BR2_PACKAGE_AUFS_SERIES)-standalone.patch
cp -r $(AUFS_DIR)/fs/aufs/ $(@D)/fs/
cp $(AUFS_DIR)/include/uapi/linux/aufs_type.h $(@D)/include/uapi/linux/
endef

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################################################################################
# Linux ev3dev extensions
#
# Patch the linux kernel with ev3dev extension
################################################################################
LINUX_EXTENSIONS += ev3dev-linux-drivers
define EV3DEV_LINUX_DRIVERS_PREPARE_KERNEL
mkdir -p $(LINUX_DIR)/drivers/lego
cp -dpfr $(EV3DEV_LINUX_DRIVERS_DIR)/* $(LINUX_DIR)/drivers/lego/
endef

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@@ -0,0 +1,22 @@
################################################################################
# Linux fbtft extensions
#
# Patch the linux kernel with fbtft extension
################################################################################
LINUX_EXTENSIONS += fbtft
# for linux >= 3.15 install to drivers/video/fbdev/fbtft
# for linux < 3.15 install to drivers/video/fbtft
define FBTFT_PREPARE_KERNEL
if [ -e $(LINUX_DIR)/drivers/video/fbdev ]; then \
dest=drivers/video/fbdev ; \
else \
dest=drivers/video ; \
fi ; \
mkdir -p $(LINUX_DIR)/$${dest}/fbtft; \
cp -dpfr $(FBTFT_DIR)/* $(LINUX_DIR)/$${dest}/fbtft/ ; \
echo "source \"$${dest}/fbtft/Kconfig\"" \
>> $(LINUX_DIR)/$${dest}/Kconfig ; \
echo 'obj-y += fbtft/' >> $(LINUX_DIR)/$${dest}/Makefile
endef

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@@ -0,0 +1,30 @@
################################################################################
# Linux RTAI extensions
#
# Patch the linux kernel with RTAI extension
################################################################################
LINUX_EXTENSIONS += rtai
ifeq ($(KERNEL_ARCH),i386)
RTAI_ARCH = x86
else ifeq ($(KERNEL_ARCH),x86_64)
RTAI_ARCH = x86
else ifeq ($(KERNEL_ARCH),powerpc)
RTAI_ARCH = ppc
else
RTAI_ARCH = $(KERNEL_ARCH)
endif
# Prepare kernel patch
define RTAI_PREPARE_KERNEL
kver=`$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelversion` ; \
if test -f $(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/hal-linux-$${kver}-*patch ; then \
$(APPLY_PATCHES) $(LINUX_DIR) \
$(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/ \
hal-linux-$${kver}-*patch ; \
else \
echo "No RTAI patch for your kernel version" ; \
exit 1 ; \
fi
endef

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@@ -0,0 +1,24 @@
################################################################################
# Linux Adeos/Xenomai extensions
#
# Patch the linux kernel with xenomai extension
################################################################################
LINUX_EXTENSIONS += xenomai
# Adeos patch version
XENOMAI_ADEOS_PATCH = $(call qstrip,$(BR2_LINUX_KERNEL_EXT_XENOMAI_ADEOS_PATCH))
ifeq ($(XENOMAI_ADEOS_PATCH),)
XENOMAI_ADEOS_OPTS = --default
else
XENOMAI_ADEOS_OPTS = --adeos=$(XENOMAI_ADEOS_PATCH)
endif
# Prepare kernel patch
define XENOMAI_PREPARE_KERNEL
$(XENOMAI_DIR)/scripts/prepare-kernel.sh \
--linux=$(LINUX_DIR) \
--arch=$(KERNEL_ARCH) \
$(XENOMAI_ADEOS_OPTS) \
--verbose
endef

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################################################################################
#
# Linux kernel target
#
################################################################################
LINUX_VERSION = $(call qstrip,$(BR2_LINUX_KERNEL_VERSION))
LINUX_LICENSE = GPLv2
LINUX_LICENSE_FILES = COPYING
define LINUX_HELP_CMDS
@echo ' linux-menuconfig - Run Linux kernel menuconfig'
@echo ' linux-savedefconfig - Run Linux kernel savedefconfig'
@echo ' linux-update-defconfig - Save the Linux configuration to the path specified'
@echo ' by BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE'
endef
# Compute LINUX_SOURCE and LINUX_SITE from the configuration
ifeq ($(BR2_LINUX_KERNEL_CUSTOM_TARBALL),y)
LINUX_TARBALL = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION))
LINUX_SITE = $(patsubst %/,%,$(dir $(LINUX_TARBALL)))
LINUX_SOURCE = $(notdir $(LINUX_TARBALL))
BR_NO_CHECK_HASH_FOR += $(LINUX_SOURCE)
else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_GIT),y)
LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
LINUX_SITE_METHOD = git
else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_HG),y)
LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
LINUX_SITE_METHOD = hg
else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_SVN),y)
LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
LINUX_SITE_METHOD = svn
else
LINUX_SOURCE = linux-$(LINUX_VERSION).tar.xz
ifeq ($(BR2_LINUX_KERNEL_CUSTOM_VERSION),y)
BR_NO_CHECK_HASH_FOR += $(LINUX_SOURCE)
endif
# In X.Y.Z, get X and Y. We replace dots and dashes by spaces in order
# to use the $(word) function. We support versions such as 4.0, 3.1,
# 2.6.32, 2.6.32-rc1, 3.0-rc6, etc.
ifeq ($(findstring x2.6.,x$(LINUX_VERSION)),x2.6.)
LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6
else ifeq ($(findstring x3.,x$(LINUX_VERSION)),x3.)
LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v3.x
else ifeq ($(findstring x4.,x$(LINUX_VERSION)),x4.)
LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v4.x
endif
# release candidates are in testing/ subdir
ifneq ($(findstring -rc,$(LINUX_VERSION)),)
LINUX_SITE := $(LINUX_SITE)/testing
endif # -rc
endif
LINUX_PATCHES = $(call qstrip,$(BR2_LINUX_KERNEL_PATCH))
# We rely on the generic package infrastructure to download and apply
# remote patches (downloaded from ftp, http or https). For local
# patches, we can't rely on that infrastructure, because there might
# be directories in the patch list (unlike for other packages).
LINUX_PATCH = $(filter ftp://% http://% https://%,$(LINUX_PATCHES))
LINUX_INSTALL_IMAGES = YES
LINUX_DEPENDENCIES += host-kmod
# host tools needed for kernel compression
ifeq ($(BR2_LINUX_KERNEL_LZ4),y)
LINUX_DEPENDENCIES += host-lz4
else ifeq ($(BR2_LINUX_KERNEL_LZMA),y)
LINUX_DEPENDENCIES += host-lzma
else ifeq ($(BR2_LINUX_KERNEL_LZO),y)
LINUX_DEPENDENCIES += host-lzop
else ifeq ($(BR2_LINUX_KERNEL_XZ),y)
LINUX_DEPENDENCIES += host-xz
endif
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_GZIP) = CONFIG_KERNEL_GZIP
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZ4) = CONFIG_KERNEL_LZ4
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZMA) = CONFIG_KERNEL_LZMA
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZO) = CONFIG_KERNEL_LZO
LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_XZ) = CONFIG_KERNEL_XZ
ifeq ($(BR2_LINUX_KERNEL_UBOOT_IMAGE),y)
LINUX_DEPENDENCIES += host-uboot-tools
endif
LINUX_MAKE_FLAGS = \
HOSTCC="$(HOSTCC)" \
HOSTCFLAGS="$(HOSTCFLAGS)" \
ARCH=$(KERNEL_ARCH) \
INSTALL_MOD_PATH=$(TARGET_DIR) \
CROSS_COMPILE="$(TARGET_CROSS)" \
DEPMOD=$(HOST_DIR)/sbin/depmod
LINUX_MAKE_ENV = \
$(TARGET_MAKE_ENV) \
BR_BINARIES_DIR=$(BINARIES_DIR)
ifeq ($(BR2_REPRODUCIBLE),y)
LINUX_MAKE_ENV += \
KBUILD_BUILD_VERSION=1 \
KBUILD_BUILD_USER=buildroot \
KBUILD_BUILD_HOST=buildroot \
KBUILD_BUILD_TIMESTAMP="$(shell LC_ALL=C date -d @$(SOURCE_DATE_EPOCH))"
endif
# Get the real Linux version, which tells us where kernel modules are
# going to be installed in the target filesystem.
LINUX_VERSION_PROBED = `$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelrelease 2>/dev/null`
ifeq ($(BR2_LINUX_KERNEL_USE_INTREE_DTS),y)
KERNEL_DTS_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_INTREE_DTS_NAME))
else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),y)
# We keep only the .dts files, so that the user can specify both .dts
# and .dtsi files in BR2_LINUX_KERNEL_CUSTOM_DTS_PATH. Both will be
# copied to arch/<arch>/boot/dts, but only the .dts files will
# actually be generated as .dtb.
KERNEL_DTS_NAME = $(basename $(filter %.dts,$(notdir $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)))))
endif
KERNEL_DTBS = $(addsuffix .dtb,$(KERNEL_DTS_NAME))
ifeq ($(BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM),y)
LINUX_IMAGE_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_NAME))
LINUX_TARGET_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_TARGET_NAME))
ifeq ($(LINUX_IMAGE_NAME),)
LINUX_IMAGE_NAME = $(LINUX_TARGET_NAME)
endif
else
ifeq ($(BR2_LINUX_KERNEL_UIMAGE),y)
LINUX_IMAGE_NAME = uImage
else ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y)
LINUX_IMAGE_NAME = uImage
else ifeq ($(BR2_LINUX_KERNEL_BZIMAGE),y)
LINUX_IMAGE_NAME = bzImage
else ifeq ($(BR2_LINUX_KERNEL_ZIMAGE),y)
LINUX_IMAGE_NAME = zImage
else ifeq ($(BR2_LINUX_KERNEL_ZIMAGE_EPAPR),y)
LINUX_IMAGE_NAME = zImage.epapr
else ifeq ($(BR2_LINUX_KERNEL_APPENDED_ZIMAGE),y)
LINUX_IMAGE_NAME = zImage
else ifeq ($(BR2_LINUX_KERNEL_CUIMAGE),y)
LINUX_IMAGE_NAME = cuImage.$(KERNEL_DTS_NAME)
else ifeq ($(BR2_LINUX_KERNEL_SIMPLEIMAGE),y)
LINUX_IMAGE_NAME = simpleImage.$(KERNEL_DTS_NAME)
else ifeq ($(BR2_LINUX_KERNEL_IMAGE),y)
LINUX_IMAGE_NAME = Image
else ifeq ($(BR2_LINUX_KERNEL_LINUX_BIN),y)
LINUX_IMAGE_NAME = linux.bin
else ifeq ($(BR2_LINUX_KERNEL_VMLINUX_BIN),y)
LINUX_IMAGE_NAME = vmlinux.bin
else ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
LINUX_IMAGE_NAME = vmlinux
else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ),y)
LINUX_IMAGE_NAME = vmlinuz
else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ_BIN),y)
LINUX_IMAGE_NAME = vmlinuz.bin
endif
# The if-else blocks above are all the image types we know of, and all
# come from a Kconfig choice, so we know we have LINUX_IMAGE_NAME set
# to something
LINUX_TARGET_NAME = $(LINUX_IMAGE_NAME)
endif
LINUX_KERNEL_UIMAGE_LOADADDR = $(call qstrip,$(BR2_LINUX_KERNEL_UIMAGE_LOADADDR))
ifneq ($(LINUX_KERNEL_UIMAGE_LOADADDR),)
LINUX_MAKE_FLAGS += LOADADDR="$(LINUX_KERNEL_UIMAGE_LOADADDR)"
endif
# Compute the arch path, since i386 and x86_64 are in arch/x86 and not
# in arch/$(KERNEL_ARCH). Even if the kernel creates symbolic links
# for bzImage, arch/i386 and arch/x86_64 do not exist when copying the
# defconfig file.
ifeq ($(KERNEL_ARCH),i386)
KERNEL_ARCH_PATH = $(LINUX_DIR)/arch/x86
else ifeq ($(KERNEL_ARCH),x86_64)
KERNEL_ARCH_PATH = $(LINUX_DIR)/arch/x86
else
KERNEL_ARCH_PATH = $(LINUX_DIR)/arch/$(KERNEL_ARCH)
endif
ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
LINUX_IMAGE_PATH = $(LINUX_DIR)/$(LINUX_IMAGE_NAME)
else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ),y)
LINUX_IMAGE_PATH = $(LINUX_DIR)/$(LINUX_IMAGE_NAME)
else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ_BIN),y)
LINUX_IMAGE_PATH = $(LINUX_DIR)/$(LINUX_IMAGE_NAME)
else
LINUX_IMAGE_PATH = $(KERNEL_ARCH_PATH)/boot/$(LINUX_IMAGE_NAME)
endif # BR2_LINUX_KERNEL_VMLINUX
define LINUX_APPLY_LOCAL_PATCHES
for p in $(filter-out ftp://% http://% https://%,$(LINUX_PATCHES)) ; do \
if test -d $$p ; then \
$(APPLY_PATCHES) $(@D) $$p \*.patch || exit 1 ; \
else \
$(APPLY_PATCHES) $(@D) `dirname $$p` `basename $$p` || exit 1; \
fi \
done
endef
LINUX_POST_PATCH_HOOKS += LINUX_APPLY_LOCAL_PATCHES
# Older linux kernels use deprecated perl constructs in timeconst.pl
# that were removed for perl 5.22+ so it breaks on newer distributions
# Try a dry-run patch to see if this applies, if it does go ahead
define LINUX_TRY_PATCH_TIMECONST
@if patch -p1 --dry-run -f -s -d $(@D) <$(LINUX_PKGDIR)/0001-timeconst.pl-Eliminate-Perl-warning.patch.conditional >/dev/null ; then \
$(APPLY_PATCHES) $(@D) $(LINUX_PKGDIR) 0001-timeconst.pl-Eliminate-Perl-warning.patch.conditional ; \
fi
endef
LINUX_POST_PATCH_HOOKS += LINUX_TRY_PATCH_TIMECONST
ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
LINUX_KCONFIG_DEFCONFIG = $(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
else ifeq ($(BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG),y)
LINUX_KCONFIG_DEFCONFIG = defconfig
else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
LINUX_KCONFIG_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE))
endif
LINUX_KCONFIG_FRAGMENT_FILES = $(call qstrip,$(BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES))
LINUX_KCONFIG_EDITORS = menuconfig xconfig gconfig nconfig
LINUX_KCONFIG_OPTS = $(LINUX_MAKE_FLAGS)
# If no package has yet set it, set it from the Kconfig option
LINUX_NEEDS_MODULES ?= $(BR2_LINUX_NEEDS_MODULES)
# Make sure the Linux kernel is built with the right endianness. Not
# all architectures support
# CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN in Linux, but the
# option will be thrown away and ignored if it doesn't exist.
ifeq ($(BR2_ENDIAN),"BIG")
define LINUX_FIXUP_CONFIG_ENDIANNESS
$(call KCONFIG_ENABLE_OPT,CONFIG_CPU_BIG_ENDIAN,$(@D)/.config)
endef
else
define LINUX_FIXUP_CONFIG_ENDIANNESS
$(call KCONFIG_ENABLE_OPT,CONFIG_CPU_LITTLE_ENDIAN,$(@D)/.config)
endef
endif
define LINUX_KCONFIG_FIXUP_CMDS
$(if $(LINUX_NEEDS_MODULES),
$(call KCONFIG_ENABLE_OPT,CONFIG_MODULES,$(@D)/.config))
$(call KCONFIG_ENABLE_OPT,$(LINUX_COMPRESSION_OPT_y),$(@D)/.config)
$(foreach opt, $(LINUX_COMPRESSION_OPT_),
$(call KCONFIG_DISABLE_OPT,$(opt),$(@D)/.config)
)
$(LINUX_FIXUP_CONFIG_ENDIANNESS)
$(if $(BR2_arm)$(BR2_armeb),
$(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config))
$(if $(BR2_TARGET_ROOTFS_CPIO),
$(call KCONFIG_ENABLE_OPT,CONFIG_BLK_DEV_INITRD,$(@D)/.config))
# As the kernel gets compiled before root filesystems are
# built, we create a fake cpio file. It'll be
# replaced later by the real cpio archive, and the kernel will be
# rebuilt using the linux-rebuild-with-initramfs target.
$(if $(BR2_TARGET_ROOTFS_INITRAMFS),
touch $(BINARIES_DIR)/rootfs.cpio
$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_SOURCE,"$${BR_BINARIES_DIR}/rootfs.cpio",$(@D)/.config)
$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_ROOT_UID,0,$(@D)/.config)
$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_ROOT_GID,0,$(@D)/.config))
$(if $(BR2_ROOTFS_DEVICE_CREATION_STATIC),,
$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS_MOUNT,$(@D)/.config))
$(if $(BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV),
$(call KCONFIG_ENABLE_OPT,CONFIG_INOTIFY_USER,$(@D)/.config))
$(if $(BR2_PACKAGE_KTAP),
$(call KCONFIG_ENABLE_OPT,CONFIG_DEBUG_FS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_ENABLE_DEFAULT_TRACERS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_PERF_EVENTS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_FUNCTION_TRACER,$(@D)/.config))
$(if $(BR2_PACKAGE_SYSTEMD),
$(call KCONFIG_ENABLE_OPT,CONFIG_CGROUPS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_INOTIFY_USER,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_FHANDLE,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_AUTOFS4_FS,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_TMPFS_POSIX_ACL,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_TMPFS_XATTR,$(@D)/.config))
$(if $(BR2_PACKAGE_SMACK),
$(call KCONFIG_ENABLE_OPT,CONFIG_SECURITY,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_SECURITY_SMACK,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_SECURITY_NETWORK,$(@D)/.config))
$(if $(BR2_PACKAGE_IPTABLES),
$(call KCONFIG_ENABLE_OPT,CONFIG_IP_NF_IPTABLES,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_IP_NF_FILTER,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER_XTABLES,$(@D)/.config))
$(if $(BR2_PACKAGE_XTABLES_ADDONS),
$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER_ADVANCED,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_NF_CONNTRACK,$(@D)/.config)
$(call KCONFIG_ENABLE_OPT,CONFIG_NF_CONNTRACK_MARK,$(@D)/.config))
$(if $(BR2_LINUX_KERNEL_APPENDED_DTB),
$(call KCONFIG_ENABLE_OPT,CONFIG_ARM_APPENDED_DTB,$(@D)/.config))
$(if $(BR2_PACKAGE_KERNEL_MODULE_IMX_GPU_VIV),
$(call KCONFIG_DISABLE_OPT,CONFIG_MXC_GPU_VIV,$(@D)/.config))
endef
ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT),y)
ifeq ($(BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT),)
define LINUX_BUILD_DTB
$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(KERNEL_DTBS)
endef
ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),)
define LINUX_INSTALL_DTB
# dtbs moved from arch/<ARCH>/boot to arch/<ARCH>/boot/dts since 3.8-rc1
cp $(addprefix \
$(KERNEL_ARCH_PATH)/boot/$(if $(wildcard \
$(addprefix $(KERNEL_ARCH_PATH)/boot/dts/,$(KERNEL_DTBS))),dts/),$(KERNEL_DTBS)) \
$(1)
endef
endif # BR2_LINUX_KERNEL_APPENDED_DTB
endif # BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
endif # BR2_LINUX_KERNEL_DTS_SUPPORT
ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
# dtbs moved from arch/$ARCH/boot to arch/$ARCH/boot/dts since 3.8-rc1
define LINUX_APPEND_DTB
(cd $(KERNEL_ARCH_PATH)/boot; \
for dtb in $(KERNEL_DTS_NAME); do \
if test -e $${dtb}.dtb ; then \
dtbpath=$${dtb}.dtb ; \
else \
dtbpath=dts/$${dtb}.dtb ; \
fi ; \
cat zImage $${dtbpath} > zImage.$${dtb} || exit 1; \
done)
endef
ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y)
# We need to generate a new u-boot image that takes into
# account the extra-size added by the device tree at the end
# of the image. To do so, we first need to retrieve both load
# address and entry point for the kernel from the already
# generate uboot image before using mkimage -l.
LINUX_APPEND_DTB += ; \
MKIMAGE_ARGS=`$(MKIMAGE) -l $(LINUX_IMAGE_PATH) |\
sed -n -e 's/Image Name:[ ]*\(.*\)/-n \1/p' -e 's/Load Address:/-a/p' -e 's/Entry Point:/-e/p'`; \
for dtb in $(KERNEL_DTS_NAME); do \
$(MKIMAGE) -A $(MKIMAGE_ARCH) -O linux \
-T kernel -C none $${MKIMAGE_ARGS} \
-d $(KERNEL_ARCH_PATH)/boot/zImage.$${dtb} $(LINUX_IMAGE_PATH).$${dtb}; \
done
endif
endif
# Compilation. We make sure the kernel gets rebuilt when the
# configuration has changed.
define LINUX_BUILD_CMDS
$(if $(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),
cp -f $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)) $(KERNEL_ARCH_PATH)/boot/dts/)
$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_TARGET_NAME)
@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \
$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) modules ; \
fi
$(LINUX_BUILD_DTB)
$(LINUX_APPEND_DTB)
endef
ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
# When a DTB was appended, install the potential several images with
# appended DTBs.
define LINUX_INSTALL_IMAGE
mkdir -p $(1)
cp $(KERNEL_ARCH_PATH)/boot/$(LINUX_IMAGE_NAME).* $(1)
endef
else
# Otherwise, just install the unique image generated by the kernel
# build process.
define LINUX_INSTALL_IMAGE
$(INSTALL) -m 0644 -D $(LINUX_IMAGE_PATH) $(1)/$(LINUX_IMAGE_NAME)
endef
endif
ifeq ($(BR2_LINUX_KERNEL_INSTALL_TARGET),y)
define LINUX_INSTALL_KERNEL_IMAGE_TO_TARGET
$(call LINUX_INSTALL_IMAGE,$(TARGET_DIR)/boot)
$(call LINUX_INSTALL_DTB,$(TARGET_DIR)/boot)
endef
endif
define LINUX_INSTALL_HOST_TOOLS
# Installing dtc (device tree compiler) as host tool, if selected
if grep -q "CONFIG_DTC=y" $(@D)/.config; then \
$(INSTALL) -D -m 0755 $(@D)/scripts/dtc/dtc $(HOST_DIR)/usr/bin/linux-dtc ; \
if [ ! -e $(HOST_DIR)/usr/bin/dtc ]; then \
ln -sf linux-dtc $(HOST_DIR)/usr/bin/dtc ; \
fi \
fi
endef
define LINUX_INSTALL_IMAGES_CMDS
$(call LINUX_INSTALL_IMAGE,$(BINARIES_DIR))
$(call LINUX_INSTALL_DTB,$(BINARIES_DIR))
endef
ifeq ($(BR2_STRIP_strip),y)
LINUX_MAKE_FLAGS += INSTALL_MOD_STRIP=1
endif
define LINUX_INSTALL_TARGET_CMDS
$(LINUX_INSTALL_KERNEL_IMAGE_TO_TARGET)
# Install modules and remove symbolic links pointing to build
# directories, not relevant on the target
@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \
$(LINUX_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) modules_install; \
rm -f $(TARGET_DIR)/lib/modules/$(LINUX_VERSION_PROBED)/build ; \
rm -f $(TARGET_DIR)/lib/modules/$(LINUX_VERSION_PROBED)/source ; \
fi
$(LINUX_INSTALL_HOST_TOOLS)
endef
# Include all our extensions.
#
# Note: our package infrastructure uses the full-path of the last-scanned
# Makefile to determine what package we're currently defining, using the
# last directory component in the path. As such, including other Makefile,
# like below, before we call one of the *-package macro is usally not
# working.
# However, since the files we include here are in the same directory as
# the current Makefile, we are OK. But this is a hard requirement: files
# included here *must* be in the same directory!
include $(sort $(wildcard linux/linux-ext-*.mk))
LINUX_PATCH_DEPENDENCIES += $(foreach ext,$(LINUX_EXTENSIONS),\
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),$(ext)))
LINUX_PRE_PATCH_HOOKS += $(foreach ext,$(LINUX_EXTENSIONS),\
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),\
$(call UPPERCASE,$(ext))_PREPARE_KERNEL))
# Checks to give errors that the user can understand
# When a custom repository has been set, check for the repository version
ifeq ($(BR2_LINUX_KERNEL_CUSTOM_SVN)$(BR2_LINUX_KERNEL_CUSTOM_GIT)$(BR2_LINUX_KERNEL_CUSTOM_HG),y)
ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION)),)
$(error No custom repository version set. Check your BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION setting)
endif
ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL)),)
$(error No custom repo URL set. Check your BR2_LINUX_KERNEL_CUSTOM_REPO_URL setting)
endif
endif
ifeq ($(BR_BUILDING),y)
ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
# We must use the user-supplied kconfig value, because
# LINUX_KCONFIG_DEFCONFIG will at least contain the
# trailing _defconfig
ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG)),)
$(error No kernel defconfig name specified, check your BR2_LINUX_KERNEL_DEFCONFIG setting)
endif
endif
ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
ifeq ($(LINUX_KCONFIG_FILE),)
$(error No kernel configuration file specified, check your BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE setting)
endif
endif
ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT)$(KERNEL_DTS_NAME),y)
$(error No kernel device tree source specified, check your \
BR2_LINUX_KERNEL_USE_INTREE_DTS / BR2_LINUX_KERNEL_USE_CUSTOM_DTS settings)
endif
endif # BR_BUILDING
$(eval $(kconfig-package))
# Support for rebuilding the kernel after the cpio archive has
# been generated in $(BINARIES_DIR)/rootfs.cpio.
$(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LINUX_DIR)/.stamp_images_installed $(BINARIES_DIR)/rootfs.cpio
@$(call MESSAGE,"Rebuilding kernel with initramfs")
# Build the kernel.
$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_TARGET_NAME)
$(LINUX_APPEND_DTB)
# Copy the kernel image(s) to its(their) final destination
$(call LINUX_INSTALL_IMAGE,$(BINARIES_DIR))
# If there is a .ub file copy it to the final destination
test ! -f $(LINUX_IMAGE_PATH).ub || cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
$(Q)touch $@
# The initramfs building code must make sure this target gets called
# after it generated the initramfs list of files.
linux-rebuild-with-initramfs: $(LINUX_DIR)/.stamp_initramfs_rebuilt