Commit Graph

207 Commits

Author SHA1 Message Date
Paul Spooren
a17b8eaa2e build: use SPDX license tags
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>
2021-02-05 14:54:47 +01:00
Daniel Golle
a21be2a703 kernel: add defaults for new SELinux options
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-05 13:17:49 +00:00
Tony Ambardar
af20332dec config: drop CONFIG_KPROBE_EVENT unused since kernel 4.9
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>
2021-01-25 14:37:41 +01:00
Rui Salvaterra
412dc26c99 kernel: make lwtunnel support optional
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>
2021-01-14 22:38:39 -10:00
Andy Walsh
9afbf33b60 kernel: drop unneeded kernel version dependency
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>
2021-01-14 01:23:16 +01:00
Nick Hainke
a1a7f3274e kernel: enable SRv6 support by enabling lwtunnel
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>
2021-01-11 11:09:05 -10:00
Nick Hainke
4943bc5cff kernel: only strip proc for small flash devices
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>
2020-12-22 19:11:50 +01:00
Andy Walsh
9361964a3a kernel: add KERNEL_IO_URING option
* add KERNEL_IO_URING option

NOTES:
Adds configurable support for the io_uring interface (CONFIG_IO_URING) via KERNEL_IO_URING option.

The kernel only zImage grows by about 5-9KB ?

I would like to enable this by default for all 5.4 kernels, so i can use the new io_uring samba-4.12.x vfs module by default.

The associated liburing was already submitted and merged.
The kernel + liburing was tested on ARM/mvebu via samba4 vfs_io_uring module and i have no issues so far.

Some extra reads on it and why we should enable it by default, since i expect more packages to use this in the future.
https://wiki.samba.org/index.php/Samba_4.12_Features_added/changed#.27io_uring.27_vfs_module
https://lwn.net/Articles/810414/
https://kernel.dk/io_uring.pdf
https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.6-IO-uring-Tests

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>
2020-12-22 19:11:50 +01:00
Hauke Mehrtens
1926ffb5ab build: Add IRQSOFF and PREEMPT TRACER kernel config option
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>
2020-12-16 22:11:19 +01:00
Daniel Golle
23049f9c31 kernel: enable kernel keyring by default on !SMALL_FLASH
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>
2020-12-14 17:26:45 +00:00
Daniel Golle
7b85dd3788 kernel: update and clean kernel keyring options
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>
2020-12-14 17:25:14 +00:00
Daniel Golle
8663072854 config: add big EXPERIMENTAL option
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>
2020-12-10 19:33:51 +00:00
Rosen Penev
f7d7a3a18b libcxx[abi]: remove
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>
2020-12-07 10:46:43 -10:00
Petr Štetiar
796d51834c toolchain: kernel-headers: kernel Git tree mirror hash
Allow setting of mirror hash for Git kernel tree.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-11-27 14:46:13 +01:00
Rui Salvaterra
3f567d8452 tools/sstrip: update to latest version
Drop our local sstrip copy and use the current ELFKickers upstream
version.

Patch the original makefile in order to avoid building elftoc, since it
fails with musl's elf.h. This is fine, since we only need sstrip anyway.

Finally, add the possibility to pass additional arguments to sstrip and
pass -z (remove trailing zeros) by default, which matches the behaviour
of the previous version.

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
[shorten long commit msg lines]
Signed-off-by: Paul Spooren <mail@aparcar.org>
2020-11-26 12:44:25 -10:00
Paul Spooren
6e99e3157a config: clean double whitespace in Config-build.in
Trivial cosmetic cleanup. This also helps for script that parse for
options in Config files.

Signed-off-by: Paul Spooren <mail@aparcar.org>
Reviewed-by: Petr Štetiar <ynezz@true.cz>
2020-11-25 08:09:13 -10:00
Daniel Golle
6e9b707ee2 Revert "refpolicy: add variant that builds modular policy"
This reverts commit 9eb9943f82.
Building the 'modular' variant requires 'semodule_package' from
'selinux-python' to be installed on the buildhost.
Apart from that, this change also broke the monolithic refpolicy
'targeted' build.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-11-22 15:20:35 +00:00
W. Michael Petullo
9eb9943f82 refpolicy: add variant that builds modular policy
This adds a variant of refpolicy that builds the modular form of the
policy. While this requires more memory on the target device, along with
some tricks to deal with OpenWrt's volatile /var directory, it is useful
for experiementing with SELinux policy.

Signed-off-by: W. Michael Petullo <mike@flyn.org>
2020-11-09 13:06:19 +00:00
Hauke Mehrtens
f6d1adbafb kernel: Activate KERNEL_MIPS_FP_SUPPORT for pistachio target
The pistachio target uses a MIPS CPU with FPU and OpenWrt uses a
toolchain with hard FPU support. MIPS FPU support needs the FPU
emulation code in the kernel.

Fixes: ac5671f46c ("kernel: remove obsolete kernel version switches for 4.19")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-11-01 20:54:37 +01:00
Adrian Schmutzler
ac5671f46c kernel: remove obsolete kernel version switches for 4.19
This removes switches dependent on kernel version 4.19 as well as
several packages/modules selected only for that version.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-10-30 19:44:41 +01:00
Daniel Golle
ba9b6702aa config: clean up SELinux options
In order to make it easier for users to build with SELinux, have a
single option in 'Global build settings' to enable all necessary
kernel features, userland packages and build-system hooks.
Also add better descriptions and help messages while at it.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-10-16 14:29:48 +01:00
Daniel Golle
a439f1bb47 config: add option for dssp selinux policy
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-10-09 02:10:05 +01:00
Daniel Golle
1a22964399 config: prepare for choice of SELinux policy
Only 'targeted' from refpolicy is supported for now.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-09-29 02:50:00 +01:00
Paul Spooren
f922a3e00e config: add KERNEL_LSM symbol
The LSM (Linux security mechanism) list is the successor of the now
legacy *major LSM*. Instead of defining a single security mechanism the
LSM symbol is a comma separated list of mechanisms to load.

Until recently OpenWrt would only support DAC (Unix discretionary access
controls) which don't require an additional entry in the LSM list. With
the newly introduced SELinux support the LSM needs to be extended else
only a manual modified Kernel cmdline (`security=selinux`) would
activate SELinux.

As the default OpenWrt Kernel config sets DAC as default security
mechanism, SELinux is stripped from the LSM list, even if
`KERNEL_DEFAULT_SECURITY_SELINUX` is activated. To allow SELinux without
a modified cmdline this commit sets a specific LSM list if
`KERNEL_SECURITY_SELINUX` is enabled.

The upstream Kconfig adds even more mechanisms
(smack,selinux,tomoyo,apparmor), but until they're ported to OpenWrt,
these can be ignored.

To compile SELinux Kernel support but disable it from loading, the
already present options `KERNEL_SECURITY_SELINUX_DISABLE` or
`KERNEL_SECURITY_SELINUX_BOOTPARAM` (with custom cmdline `selinux=0`)
can be used. Further it's possible to edit `/etc/selinux/config`.

Signed-off-by: Paul Spooren <mail@aparcar.org>
2020-09-03 14:14:33 +01:00
Adrian Schmutzler
6362a04725 kernel: remove obsolete kernel version switches for 4.14
This removes switches dependent on kernel version 4.14 as well as
several packages/modules selected only for that version.

This also removes sched-cake-virtual, which is not required anymore
now that we have only one variant of cake.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-09-02 16:29:23 +02:00
Adrian Schmutzler
94198e2a1c rb532: drop target
This target is still on kernel 4.14, and recent attempts to move it to
kernel 5.4 have not led to success. The device tester reported that it
wouldn't boot with the following messages:

From sysupgrade:

  Press any key within 4 seconds to enter setup....
  loading kernel from nand... OK
  setting up elf image... OK
  jumping to kernel code

At this point the system hangs.

From CompactFlash:

  Press any key within 4 seconds to enter setup....
  Booting CF
  Loading kernel... done
  setting up elf image... kernel out of range kernel loading failed

The tester reported that the same was observed with current master
(kernel 4.14) as well. This looks like some kernel size restriction.

Since this target is quite old and only supports one device, and since
nobody else seemed interested in working on this for quite some time,
I decided to not put further work into analyzing the problem and drop
this together with the other 4.14-only targets.

Patchwork series:
https://patchwork.ozlabs.org/project/openwrt/list/?series=197066&state=*

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-09-02 16:29:22 +02:00
Thomas Petazzoni
168faef443 kernel: add options needed for SELinux
This adds a number of options to config/Config-kernel.in so that
packages related to SELinux support can enable the appropriate Linux
kernel support.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[rebase; add ext4, F2FS, UBIFS, and JFFS2 support; add commit message]
Signed-off-by: W. Michael Petullo <mike@flyn.org>
2020-08-31 01:15:41 +01:00
Thomas Petazzoni
aee58d52ce build: add support for SELinux to include/image.mk
This allows the build process to prepare a squashfs filesystem for use
with SELinux.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[rebase, add commit message]
Signed-off-by: W. Michael Petullo <mike@flyn.org>
2020-08-31 01:15:41 +01:00
Adrian Schmutzler
4e4ee46495 ar71xx: drop target
This target has been mostly replaced by ath79 and won't be included
in the upcoming release anymore. Finally put it to rest.

This also removes all references in packages, tools, etc. as well as
the uboot-ar71xx and vsc73x5-ucode packages.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-08-30 22:18:35 +02:00
Yuan Tao
ba2ddba56b config: kernel: fix missed CGROUP_HUGETLB symbol
The symbol KERNEL_CGROUP_HUGETLB is always used whenever KERNEL_CGROUPS is enabled.
The absence of this notation will cause the user to be asked to enter this parameter the first time it is compiled.

Signed-off-by: Yuan Tao <ty@wevs.org>
2020-08-24 01:09:30 +01:00
Daniel Golle
42abe56f1b kernel: further clean-up options and defaults
Remove `if !SMALL_FLASH` in places which are anyway already augmented
by `if !SMALL_FLASH`.
Always enable CONFIG_BLK_DEV_THROTTLING on !SMALL_FLASH devices rather
than just enabling it on bcm27xx.
Enabled CPU bandwidth provisioning for FAIR_GROUP_SCHED on !SMALL_FLASH
devices as CONFIG_FAIR_GROUP_SCHED is already enabled and becomes more
useful for cgroups with that option enbled as well.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-08-10 09:54:14 +01:00
Felix Fietkau
eb155f755a build: make prefix mapping of debug information optional
Remapping the local build path in debug information makes debugging
using ./scripts/remote-gdb harder, because files no longer refer to the full
path on the build host.

For local builds, debug information does not need to be reproducible,
since it will be stripped out of packages anyway.

For buildbot builds, it makes sense to keep debug information reproducible,
since the full path is not needed (nor desired) anywhere.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-08-06 12:36:24 +02:00
Stijn Tintel
5c3e83fa88 kernel: fix missing TRANSPARENT_HUGEPAGE symbols
Enabling KERNEL_TRANSPARENT_HUGEPAGE exposes 2 missing symbols:
* CONFIG_READ_ONLY_THP_FOR_FS
* TRANSPARENT_HUGEPAGE_ALWAYS
* TRANSPARENT_HUGEPAGE_MADVISE

The first one was added in 5.4, and is marked experimental there so just
disable it in the generic config.

For the latter two, we should not force the user to use either of them,
so add them as build-configurable kernel options.

Fixes: d1a8217d87 ("kernel: clean-up build-configurable kernel config symbols")
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2020-08-01 14:33:46 +01:00
Daniel Golle
9950bc92e3 kernel: add menuconfig entry for kernel CONFIG_CGROUP_NET_CLASSID
It was removed from target defaults though it didn't exist in the
build-systems kernel configuration options. Add it there.

Fixes: d1a8217d87 ("kernel: clean-up build-configurable kernel config symbols")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-07-31 22:50:38 +01:00
Adrian Schmutzler
1d5260cf72 build: add option to mark devices as BROKEN
By specifying "BROKEN := 1" or "BROKEN := y" for a device, it will be
hidden (and deselected) by default. By that, it provides a stronger
option to "disable" a device beyond just using DEFAULT := n.

To make these devices visible, just enable the BROKEN option in
developer settings as already implemented for targets and packages.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-07-30 21:49:07 +02:00
Daniel Golle
d1a8217d87 kernel: clean-up build-configurable kernel config symbols
Don't explicitely disable options in target/linux/generic/config-* if
they are already controlled in config/Config-kernel.in.
Add a bunch of new symbols  and prepare defaults for using only unified
hierarchy (ie. cgroup2). Update symbol dependencies while at it

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-07-30 16:59:47 +01:00
Hauke Mehrtens
f94b09867d build: Remove dependency of user space stack cookies from kernel
Currently the user space stack cookies work well also when the kernel
stack cookies are not activated. This is handled completely in user
space and does not need kernel support.

This dependency was probably needed some years ago when the libc did not
support stack cookies.

Reviewed-by: Ian Cooper <iancooper@hotmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-07-24 00:35:21 +02:00
Roman Yeryomin
2ca084ccaa build: improve ccache support
Set CCACHE_DIR to $(TOPDIR)/.ccache and CCACHE_BASEDIR to $(TOPDIR).
This allows to do clean and dirclean. Cache hit rate for test build
after dirclean is ~65%.
If CCACHE is enabled stats are printed out at the end of building process.
CCACHE_DIR config variable allows to override default, which could be useful
when sharing cache with many builds.
cacheclean make target allows to clean the cache.

Changes from v1:
- remove ccache directory using CCACHE_DIR variable
- remove ccache leftovers from sdk and toolchain make files
- introduce CONFIG_CCACHE_DIR variable
- introduce cacheclean make target

Signed-off-by: Roman Yeryomin <roman@advem.lv>
2020-07-11 15:19:53 +02:00
Javier Marcet
caf09f2b84 kernel: rename CONFIG_NETPRIO_CGROUP to CONFIG_CGROUP_NET_PRIO
This has been changed in kernel 3.14.

Signed-off-by: Javier Marcet <javier@marcet.info>
2020-06-27 00:19:13 +02:00
Ian Cooper
b933f9cf0c toolchain: remove gcc libssp and use libc variant
Removes the standalone implementation of stack smashing protection
in gcc's libssp in favour of the native implementation available
in glibc and uclibc. Musl libc already uses its native ssp, so this
patch does not affect musl-based toolchains.

Stack smashing protection configuration options are now uniform
across all supported libc variants.

This also makes kernel-level stack smashing protection available
for x86_64 and i386 builds using non-musl libc.

Signed-off-by: Ian Cooper <iancooper@hotmail.com>
2020-06-17 23:57:07 +02:00
Christopher Hill
b7a8a54542 ath79: add support for MikroTik RouterBOARD 493G (rb4xx series)
This patch adds support for the MikroTik RouterBOARD RB493G, ported
from the ar71xx target.

See https://routerboard.com/RB493G for details

Specification:
- SoC Qualcomm Atheros AR7161
- RAM: 256 MiB
- Storage: 128MiB NAND
- Ethernet: 9x 1000/100/10 Mbps
- USB 1x 2.0 / 1.0 type A
- PCIe: 3x Mini slot
- MicroSD slot

Working:
- Board/system detection
- Ethernet
- SPI
- NAND
- LEDs
- USB
- Sysupgrade

Enabled (but untested due to lack of hardware):
- PCIe - ath79_pci_irq struct has the slot/pin/IRQ mappings if needed

Installation methods:
- tftp boot initramfs image, scp then flash via "sysupgrade -n"
- nand boot existing OpenWrt, scp then flash via "sysupgrade -n"

Notes:
- initramfs image will not work if uncompressed image size over ~8.5Mb
- The "rb4xx" drivers have been enabled

Signed-off-by: Christopher Hill <ch6574@gmail.com>
2020-06-15 21:16:18 +02:00
Paul Spooren
07449f692c build: refactor JSON info files to profiles.json
JSON info files contain machine readable information of built profiles
and resulting images. These files were added in commit 881ed09ee6
("build: create JSON files containing image info").

They are useful for firmware wizards and script checking for
reproducibility.

Currently all JSON files are stored next to the built images, resulting
in up to 168 individual files for the ath79/generic target.

This patch refactors the JSON creation to store individual per image
(not per profile) files in $(BUILD_DIR)/json_info_files and create an
single overview file called `profiles.json` in the target directory.

Storing per image files and not per profile solves the problem of
parallel file writes. If a profiles sysupgrade and factory image are
finished at the same time both processes would write to the same JSON
file, resulting in randomly broken outputs.

Some target like x86/64 do not use the image code yet, resulting in
missing JSON files. If no JSON info files were created, no
`profiles.json` files is created as it would be empty anyway.

As before, this creation is enabled by default only if `BUILDBOT` is set.

Tested via buildroot & ImageBuilder on ath79/generic, imx6 and x86/64.

Signed-off-by: Paul Spooren <mail@aparcar.org>
[json_info_files dir handling in Make, if case refactoring]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-04-03 12:17:45 +02:00
李国
a6b7c3e672 x86: generate EFI platform bootable images
Add EFI platform bootable images for x86 platforms. These images can
also boot from legacy BIOS platform.

EFI System Partition need to be fat12/fat16/fat32 (not need to load
filesystem drivers), so the first partition of EFI images are not ext4
filesystem any more.

GPT partition table has an alternate partition table, we did not
generate it. This may cause problems when use these images as qemu disk
(kernel can not find rootfs), we pad enough sectors will be ok.

Signed-off-by: 李国 <uxgood.org@gmail.com>
[part_magic_* refactoring, removed genisoimage checks]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2020-03-31 16:20:47 +02:00
Paul Spooren
cb007a7bf6 x86: switch image generation to new code
This commit introduces few related changes which need to be done in
single commit to keep images buildable between git revisions. In result
it retains all previous image creation possibilities with slight name
change of generated images. Brief summary of the commit:

* Split up image generation recipe to smaller chunks to make it more
  generic and reusable.

* Make iso images x86 specific and drop their definition as root
  filesystem.

* Convert image creation process to generic code specified in image.mk.

* Make geode subtarget inherit features from the main target instead of
  redefining them.

* For subtargets create device definitions with basic packages set.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
[rebased]
Signed-off-by: Paul Spooren <mail@aparcar.org>
2020-03-21 10:36:00 +00:00
Chen Minqiang
ec5e8461c1 x86: make crashdump works
1. KERNEL_CRASH_DUMP should depends on KERNEL_PROC_KCORE (kexec use it)
2. select crashkernel mem size by totalmem
   mem <= 256M disable crashkernel by default
   mem >= 4G use 256M for crashkernel
   mem >= 8G use 512M for crashkernel
   default use 128M
3. set BOOT_IMAGE in kdump.init
4. resolve a "Unhandled rela relocation: R_X86_64_PLT32" error

Tested on x86_64

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
2020-03-20 21:45:06 +00:00
Hauke Mehrtens
69d179ec81 kernel: Use new symbol to deactivate MIPS FPU support
With kernel 5.4 the upstream kernel supports deactivating the FPU
support on MIPS. Use this new upstream feature instead of our older
patch which was removed when porting the kernel patches to kernel 5.4.

This way both options are set which should work for older kernel
versions and also new ones.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-02-28 17:50:46 +01:00
Xu Wang
2299808c68 base-files: add all buildinfo with INCLUDE_CONFIG
CONFIG_INCLUDE_CONFIG option is helpful for being able to rebuild the
exact same firmware as you see on a live OpenWRT instance, but it's
crucially missing feeds information, so we can't rebuild the exact same
package versions. This commit fixes this by adding the remaining feeds
(and version) buildinfo files to the image.

Signed-off-by: Xu Wang <xwang1498@gmx.com>
2020-02-27 12:14:09 +01:00
Hauke Mehrtens
b951f53fba build: Add additional kernel debug options
Make it possible to activate some additional kernel debug options.
This can be used to debug some problems in kernel drivers.

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
2020-02-22 16:34:57 +01:00
Hauke Mehrtens
947d2e0a70 build: Add KCOV kernel code coverage for fuzzing
The adds an option to activate KCOV (Code coverage for fuzzing).

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
2020-02-22 16:34:57 +01:00
Hauke Mehrtens
431594a978 build: Add option KERNEL_KASAN
The kernel kernel address sanitizer is able to detect some memory
bugs in the kernel like out of range array accesses.

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
2020-02-22 16:34:57 +01:00