Allows us to drop some patches we were carrying, since the bugs were
fixed upstream. Gives numerous tooling improvements too.
Signed-off-by: Krister Johansen <krister.johansen@oracle.com>
Re-enable perf builds for 5.3.x and 4.19.x since they're the latest
stable and LTS, respectively.
Update the bcc build rules to map to these same kernel releases, too.
Signed-off-by: Krister Johansen <krister.johansen@oracle.com>
The first patch re-adds symbol definitions that were temporarily omitted
from the 4.19 stable branch.
The latter patch corrects the uapi swab.h to that errors about "unknown
type name '__always_inline'" are no longer present in builds. Without
this patch, bcc would build but attempts to compile the internal
programs at runtime would fail.
Signed-off-by: Krister Johansen <krister.johansen@oracle.com>
KCONFIG_TAG variable can be used to set a custom kconfig tag.
If KCONFIG_TAG is not set, the the image is tagged as linuxkit/kconfig:latest
This is useful for projects requiring to build multiple kernels that have
different patches.
When trying to edit an unpatched kernel config after working on a patched
kernel config (same kernel version), one had to rerun make kconfig first
in order to edit the config of an unpatched kernel.
Now it is possible to generate a tegged kconfig image and then, get the wanted
config by selecting the corresponding linuxkit/kexec:tag.
Signed-off-by: Gabriel Chabot <gabriel.chabot@qarnot-computing.com>
Intel microrode download is moved earlier in the Dockerfile, before the
kernel is actually built, so that it's available in the context of a
build and can be referenced in CONFIG_EXTRA_FIRMWARE for people who want
the microcode to be built-in the kernel.
It is still copied in the out/ directory and so that it is still
available for addition in a 'ucode:' section in linuxkit.yml.
Signed-off-by: Yoann Ricordel <yoann.ricordel@qarnot-computing.com>
This skips 0.0.20190531
Changelog for 0.0.20190601
== Changes ==
* compat: don't call xgetbv on cpus with no XSAVE
There was an issue with the backport compat layer in yesterday's snapshot,
causing issues on certain (mostly Atom) Intel chips on kernels older than
4.2, due to the use of xgetbv without checking cpu flags for xsave support.
This manifested itself simply at module load time. Indeed it's somewhat tricky
to support 33 different kernel versions (3.10+), plus weird distro
frankenkernels.
Changelog for 0.0.20190531
== Changes ==
* tools: add wincompat layer to wg(8)
Consistent with a lot of the Windows work we've been doing this last cycle,
wg(8) now supports the WireGuard for Windows app by talking through a named
pipe. You can compile this as `PLATFORM=windows make -C src/tools` with mingw.
Because programming things for Windows is pretty ugly, we've done this via a
separate standalone wincompat layer, so that we don't pollute our pretty *nix
utility.
* compat: udp_tunnel: force cast sk_data_ready
This is a hack to work around broken Android kernel wrapper scripts.
* wg-quick: freebsd: workaround SIOCGIFSTATUS race in FreeBSD kernel
FreeBSD had a number of kernel race conditions, some of which we can vaguely
work around. These are in the process of being fixed upstream, but probably
people won't update for a while.
* wg-quick: make darwin and freebsd path search strict like linux
Correctness.
* socket: set ignore_df=1 on xmit
This was intended from early on but didn't work on IPv6 without the ignore_df
flag. It allows sending fragments over IPv6.
* qemu: use newer iproute2 and kernel
* qemu: build iproute2 with libmnl support
* qemu: do not check for alignment with ubsan
The QEMU build system has been improved to compile newer versions. Linking
against libmnl gives us better error messages. As well, enabling the alignment
check on x86 UBSAN isn't realistic.
* wg-quick: look up existing routes properly
* wg-quick: specify protocol to ip(8), because of inconsistencies
The route inclusion check was wrong prior, and Linux 5.1 made it break
entirely. This makes a better invocation of `ip route show match`.
* netlink: use new strict length types in policy for 5.2
* kbuild: account for recent upstream changes
* zinc: arm64: use cpu_get_elf_hwcap accessor for 5.2
The usual churn of changes required for the upcoming 5.2.
* timers: add jitter on ack failure reinitiation
Correctness tweak in the timer system.
* blake2s,chacha: latency tweak
* blake2s: shorten ssse3 loop
In every odd-numbered round, instead of operating over the state
x00 x01 x02 x03
x05 x06 x07 x04
x10 x11 x08 x09
x15 x12 x13 x14
we operate over the rotated state
x03 x00 x01 x02
x04 x05 x06 x07
x09 x10 x11 x08
x14 x15 x12 x13
The advantage here is that this requires no changes to the 'x04 x05 x06 x07'
row, which is in the critical path. This results in a noticeable latency
improvement of roughly R cycles, for R diagonal rounds in the primitive. As
well, the blake2s AVX implementation is now SSSE3 and considerably shorter.
* tools: allow setting WG_ENDPOINT_RESOLUTION_RETRIES
System integrators can now specify things like
WG_ENDPOINT_RESOLUTION_RETRIES=infinity when building wg(8)-based init
scripts and services, or 0, or any other integer.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
