This is required to use BPF maps of type BPF_MAP_TYPE_PERF_EVENT_ARRAY
for sending data from BPF programs to user-space for post-processing
or logging.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Generate BTF (BPF Type Format) information from DWARF debug info. This is
embedded in the kernel and exported via sysfs as /sys/kernel/btf/vmlinux.
BTF data enhances kernel portability and introspection for BPF programs.
Selecting this also enables the dwarves host package which provides the
pahole tool used for BTF encoding.
Test using: "bpftool btf dump file /sys/kernel/btf/vmlinux format c"
This needs to depend on KERNEL_DEBUG_INFO_REDUCED not being set,
otherwise we can enable both KERNEL_DEBUG_INFO_BTF and
KERNEL_DEBUG_INFO_REDUCED, which will result in undefined behaviour.
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
[split DEBUG_INFO_REDUCED into separate commit, add dependency]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Add DEBUG_INFO_REDUCED as a kernel config option and remove it from the
kernel configs. This is in preparation of the upcoming option to enable
BTF typeinfo, which is incompatible with DEBUG_INFO_REDUCED.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This symbol is added by the bcm27xx target patches so it should depend
on that target.
Fixes: efd9463dcf ("kernel: add missing symbol for bcm27xx")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
When KERNEL_PERF_EVENTS is enabled in OpenWrt, the RPI_AXIPERF symbol is
exposed. Add a build option for it to fix build failures with
KERNEL_PERF_EVENTS enabled.
Fixes: 20ea6adbf1 ("bcm27xx: add support for linux v5.15")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Enabling KERNEL_KPROBES exposes KERNEL_BPF_KPROBE_OVERRIDE. Add a build
option for it to fix build failures with KERNEL_KPROBES enabled.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Add option to compile kmod-vrf, support for Virtual Routing and
Forwarding (Lite).
This module depends on NET_L3_MASTER_DEV, which is a boolean kernel
option, so we need to create a configuration option also for this, and
make kmod-vrf depend on it.
Signed-off-by: Marek Behún <kabel@kernel.org>
Certain utilities, such as smcroute [1], require additional multicast
routing options to be enabled, otherwise they will not function
correctly. Enable these relevant dependancies when IPv4 and/or IPv6
multicast routing are enabled.
[1] https://github.com/troglobit/smcroute/blob/master/README.md#linux-requirements
This increases the uncompressed kernel size on MIPS 24kc by 8KBytes
and the compressed kernel size by 1.8KBytes.
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Added support to generate dynamic-sized VHDX images for Hyper-V.
Compile-tested on x86 and run-tested on Windows 10 21H2 (Hyper-V).
Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>
The crashlog patch as not ported to kernel 5.4.
Fixes: 4e0c54bc5b ("kernel: add support for kernel 5.4")
Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
Enabling KERNEL_FTRACE exposes the HIST_TRIGGERS triggers symbol. Add a
build option for it to fix build failures with KERNEL_FTRACE enabled.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
The help keyword is missing, which breaks menuconfig etc.
Fixes: cbeab2cd99 ("kernel: add another missing KASAN symbol")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Enabling KERNEL_KASAN exposes yet another missing symbol. This did not
appear on bcm27xx but is appearing now on x86/64. Add a new kernel build
option for KASAN_VMALLOC to fix build on x86/64 with KERNEL_KASAN
enabled.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Enabling KERNEL_UBSAN exposes several missing symbols. Add new kernel
build options for UBSAN_BOUNDS and UBSAN_TRAP, disable CONFIG_TEST_UBSAN
in the generic kernel configs and enable CONFIG_UBSAN_MISC in generic
5.10 config. The latter symbol was removed in later kernels, as it was
causing some issues, so just disable it in 5.10 instead of adding a
build option for it.
Fixes build failures with KERNEL_UBSAN enabled.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Enabling KERNEL_KASAN exposes several missing symbols. As KASAN_SW_TAGS
is only implemented for arm64 CPUs and requires clang, it doesn't make
sense to make this a build option so just default to KASAN_GENERIC and
disable KASAN_SW_TAGS.
While at it, disable TEST_KASAN_MODULE in the generic 5.10 config.
Fixes build failures with KERNEL_KASAN enabled.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Fix typos in comment and user-facing help text.
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
[split out config changes, adjust commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
No package here depends on it. Furthermore, uClibc++ is a fairly buggy
C++ library and seems to be relatively inactive upstream.
It also lacks proper support for modern C++11 features.
The main benefit of it is size: 66.6 KB vs 287.3 KB on mips24kc. Static
linking and LTO can help bring the size down of packages that need it.
Added warning message to uclibc++.mk
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Until now, this feature was switched on via the kernel configuration
option KERNEL_SECCOMP.
The follwing change a7f794cd2a now requires that
the package procd-seccomp must also enabled for buildinmg.
However, this is not the case we have no dependency and the imagebuilder
cannot build the image, because of the implicit package selection.
This change adds a new configuration option CONFIG_SECCOMP.
The new option has the same behaviour as the configuration
option CONFIG_SELINUX.
If the CONFIG_SECCOMP is selected then the package procd-seccomp and
KERNEL_SECCOMP is enabled for this build.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
The LOCKUP_DETECTOR configuration option split into the
SOFTLOCKUP_DETECTOR and HARDLOCKUP_DETECTOR configuration option some
time ago. The HARDLOCKUP_DETECTOR option is only working on some
architectures, but SOFTLOCKUP_DETECTOR should work everywhere. Replace
KERNEL_LOCKUP_DETECTOR with KERNEL_SOFTLOCKUP_DETECTOR.
LOCKUP_DETECTOR will be selected by SOFTLOCKUP_DETECTOR automatically.
Fixes: b951f53fba ("build: Add additional kernel debug options")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
In OpenWrt, /var is symlinked to /tmp by default. This is done to reduce
the amount of writes to the flash chip, which often have not the
greatest durability. As a result, things like DHCP or UPnP lease files,
are not persistent across reboots.
Since OpenWrt can run on devices with more durable storage, it makes
sense to have an option for a persistent /var. Add an option to make
/var persistent. When enabled, /var will no longer be symlinked to /tmp,
but /var/run will be symlink to /tmp/run, as it should contains only
files that should not be kept during reboot. The option is off by
default, to maintain the current behaviour.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
The file is a info file just like config.buildinfo, feeds.buildinfo and
version.buildinfo. It bundles these and more information in a machine
readable way.
This commit enables the creation of profiles.json by default and not
only for buildbots. By doing so it follow the behaviour of the
ImageBuilder which always creates the file, lastly this increases the
files visibility for downstream projects.
Signed-off-by: Paul Spooren <mail@aparcar.org>
The grub2 and grub2-efi packages should only contain boot-related code.
grub-bios-setup is the same as grub-editenv, they are both grub2 tools
and should be placed in a separate package.
Signed-off-by: 李国 <uxgood.org@gmail.com>
[use AUTORELEASE and update to SPDX]
Signed-off-by: Paul Spooren <mail@aparcar.org>
The code interprets these config values as Mebibytes rather than
Megabytes so modify the description accordingly.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
[fix commit title prefix]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
* show only if target supports it (ie. seperate_ramdisk feature set)
* select XZ compression by default of ramdisk is seperate
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Instead of embedding the initrd cpio archive into the kernel, allow
for having an external ramdisk added to the FIT or uImage.
This is useful to overcome kernel size limitations present in many
stock bootloaders, as the ramdisk is then loaded seperately and doesn't
add to the kernel size. Hence we can have larger ramdisks to host ie.
installers with all binaries to flash included (or a web-based
firmware selector).
In terms of performance and total size the differences are neglectible.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
The license folder is a core part of OpenWrt and all GPL-2.0 licensed.
Use SPDX license tags to allow machines to check licenses.
Signed-off-by: Paul Spooren <mail@aparcar.org>
[rebase, keep some Copyright lines, sharpen commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The config setting was renamed to CONFIG_KPROBE_EVENTS.
Fixes: 97d3f800a8 ("config: kernel: Add KPROBE_EVENTS config option)
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Not everyone will want to bloat their kernel by 24 kiB for such a niche
feature.
Fixes: a1a7f3274e "kernel: enable SRv6 support by
enabling lwtunnel"
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
The current master only supports kernel 5.4, and there is no reason
to remove KERNEL_IO_URING for future kernels.
Drop the unneeded dependency.
Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>
[improve commit title/message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Enable the ability to use segment routing based on IPv6. It allows the
packet to specify a path that the packet should take through the
network.
Lwtunnel allow an easy encapsulation of a package. You can just install
ip-full package and use it:
ip -6 route add 2003::/64 dev eth0 encap seg6 mode encap \
segs 2001::1,2002::2
An IPv6 package looks like this:
[IPv6 HDR][IPv6 RH][IPv6 HDR][Data...]
Netifd support:
https://git.openwrt.org/?p=project/netifd.git;
a=commit;h=458b1a7e9473c150a40cae5d8be174f4bb03bd39
Increases imagesize by 24.125 KiB. Therefore, only enable for devices
with enough flash.
Signed-off-by: Nick Hainke <vincent@systemli.org>
Currently, you are not able to get statistics about IPv4 and IPv6
usage. This information can be collected via the snmp and snmp6.
However, in the current state this interface is disabled as you can
read in the "902-debloat_proc.patch":
"Strip non-essential /proc functionality to reduce code size"
Tools like netstat use the snmp/6 interface to collect interface
statistics. Some prometheus exporters also mention this:
- prometheus-collectors/netstat.lua
- prometheus-collectors/snmp6 (still a PR)
- collectd/snmp6 (still a PR)
PRs:
- https://github.com/collectd/collectd/pull/3789
- https://github.com/openwrt/packages/pull/14158
Instead of enabling it as default for all devices we condition it
default y if SMALL_FLASH
A test shows it needs around 16 kiB.
Signed-off-by: Nick Hainke <vincent@systemli.org>
[fixed whitespace issue]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This adds the CONFIG_IRQSOFF_TRACER and the CONFIG_PREEMPT_TRACER kernel
configuration option to the OpenWrt menu. This can be used to debug
latencies in the system.
The CONFIG_PREEMPT_TRACER option needs the CONFIG_PREEMPT option which is
supposed to be used for Low-Latency Desktop and not used by many targets
in OpenWrt.
The help text is copied from the Linux kernel Kconfig.
Signed-off-by: Hauke Mehrtens <hmehrtens@maxlinear.com>
Enable CONFIG_KEYS by default on systems which are not marked as
flash-space constraint by the 'small_flash' feature.
CONFIG_KEYS is required by Docker, enabling it in our kernel allows
users to run Docker on stock OpenWrt.
It is also used of by some network file systems (such as NFSv4) to
store credentials as well as UID/GID mappings.
Adds about 50kB to vmlinux on ath79/generic (~18kB compressed)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Add KERNEL_KEYS_REQUEST_CACHE option.
'tristate' (ie. module builds) are not valid in Config-kernel.in, hence
remove tristate KERNEL_ENCRYPTED_KEYS. It will be readded as a kernel
module in a follow-up commit.
Fixes: 39d817cf38 ("Add config symbols for kernel keyring support")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
As discussed in the today's (2020-12-10) meeting, add a new option to
menuconfig to group the selection of all experimental features to be
selected by default.
Developers are recommended to make use of this new symbol to guard
new features.
Other developers and community members should feel encouraged to
build with this flag enabled to help testing and provide feedback.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This is a neat project, but offers no benefit to OpenWrt. The initial
reason for it was to be a replacement for libstdcpp as it is smaller
and lacks compatibility for C++98. Unfortunately, compiling several
packages with it results in larger ipk sizes.
While not a member of the packages feed, this will be moved to
packages-abandoned to keep it somewhere.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
