kernel: add missing symbol

Add missing symbol When building kernel with profiling enabled and ARM
or ARM64 targets.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

buildroot: add options to build the kernel for NFS boot

Add the basic set of kernel options to allow it from mounting a NFS root
and boot from it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48590 3c298f89-4303-0410-b956-a3cf2f4a3e73

include/kernel: add custom USER/DOMAIN config options

These allow the generated kernel's build metadata to be defined explicitly.
This metadata is reported, eg, at boot time and in `uname -a` on running
systems. If the variables aren't configured, the current build system username
and hostname are used as normal.

The motivation for this option is to achive reproducible (bit-for-bit
identical) kernel builds of official openwrt releases.

Signed-off-by: bryan newbold <bnewbold@robocracy.org>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48541 3c298f89-4303-0410-b956-a3cf2f4a3e73

Configure IPv6 kernel options in config/Config-kernel.in

Revision 46834 changed IPv6 support from a module to builtin. But
since the configuration of the IPv6 kernel options was left in
package/kernel/linux/modules/netsupport.mk, this means that an
empty kmod-ipv6 module was still being generated (not packaged).

This patch moves the configuration of the IPv6 kernel options to
config/Config-kernel.in to remove this last bit of the module.

Note that CONFIG_IPV6_PRIVACY was dropped (enabled by default
since Linux v3.13), so this option is no longer needed.

See https://github.com/torvalds/linux/commit/5d9efa7ee99eed58388f186c13cf2e2a87e9ceb4

Signed-off-by: Arjen de Korte <arjen+openwrt@de-korte.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48132 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: add support for KERNEL_CGROUP_PIDS

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47275 3c298f89-4303-0410-b956-a3cf2f4a3e73

cosmetic: remove trailing whitespaces

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47197 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: mitigate cgroups config dependency changes

Memory Resource Controller no longer depends on Resource counters since
Kernel version 4.0.
3.18 is the only still supported version needing Resource counters for
MEMCG, thus declare the dependency only for that version.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46024 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: add an option to enable KPROBE

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45212 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: cleanup seccomp symbol selection

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45005 3c298f89-4303-0410-b956-a3cf2f4a3e73

build: remove obsolete references to cris and avr32

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44965 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: Support kernel options required by systemd

These kernel options are all likely to be widely useful in this modern age, but
are immediately useful for systemd support.

c.f. http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-apps/systemd/systemd-9999.ebuild?&view=markup#l118

Adapted from a patch by Adam Porter.

Signed-off-by: Jeff Waugh <jdub@bethesignal.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44929 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: add function tracers

Adds menuconfig options for ftrace function tracers

Signed-off-by: Bryan Forbes <bryan@reigndropsfall.net>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44878 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: enable open by fhandle syscalls

This is needed by many services to function properly and as
all modern distributions got it enabled, it starts to be a
de-facto standard, i.e. user-space starts to silently depend
on it.

This also pulls in EXPORTFS, however, the kernel binary size
increases only a little.
On ARM systems comes down to 800 bytes uncompressed and about
200 bytes compressed size.
On MIPS systems it's about 1.2 kB size increase of the LZMA
compressed kernel.

v2: use menuconfig option instead of just enabling the option

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44765 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: disable kernel tracing on uml

Signed-off-by: Nicolas Thill <nico@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44397 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: enable EARLY_PRINTK on bcm53xx by default

It's useful for debugging and safe at the same time as we enable it per
device.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43980 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: add SECCOMP to menuconfig

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43888 3c298f89-4303-0410-b956-a3cf2f4a3e73

Kconfig: Various typo/grammar/line-length fixes in Config*.in files

Non-functional changes to config/Config-*.in files, including:

* spelling mistakes
* inconsistent terminology
* grammar
* overly long lines in "help" components

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42519 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: enable cgroup freezer

This option will be enabled by default only when cgroups support is enabled.

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42464 3c298f89-4303-0410-b956-a3cf2f4a3e73

Disable crashlog for UML

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41153 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: fix duplicate KERNEL_PERF_EVENTS with wrong dependency

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41030 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: add a config option for enabling /proc/slabinfo

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40858 3c298f89-4303-0410-b956-a3cf2f4a3e73

kernel: add a config option for /proc page monitoring (useful for detailed memory usage info)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40855 3c298f89-4303-0410-b956-a3cf2f4a3e73

sparse: add as a new package selectable from the config

This change does multiple things, all related to enable sparse usage as
a static analysis tool selectable from the OpenWrt configuration:
*add a KERNEL_SPARSE option in the config to add sparse to the kernel
build (through the C=1 option usage)
*add sparse as a new host tools. It will get selected automatically when
the above option will be enabled

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40490 3c298f89-4303-0410-b956-a3cf2f4a3e73

make printk, crashlog and swap support configurable

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40361 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: lxc: enable KERNEL_POSIX_MQUEUE

Recent lxc versions are not useful if this option is not enabled. That said,
enable KERNEL_POSIX_MQUEUE by default when KERNEL_LXC_MISC is selected.

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39385 3c298f89-4303-0410-b956-a3cf2f4a3e73

config: add KERNEL_DYNAMIC_DEBUG option

Useful when debugging kernel which uses this infrastructure, for
example ubi/ubifs.

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39007 3c298f89-4303-0410-b956-a3cf2f4a3e73

move menuconfig options into separate files

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38895 3c298f89-4303-0410-b956-a3cf2f4a3e73