Support plain gzip'ed files, as used on arm64, and bzImage with
embedded gzip'ed kernel, as used on x86.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
Add the '-vmlinux' flag to build and pass it all
the way to the kernel filter.
Note, this commit only adds the flag but does not
yet perform the decompression. This will be added
with the next commit.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
Stash the kernel image in a local buffer and
flush it out once done.
This is preparation work for supporting uncompressed
kernels in the next commit.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
Please add your use cases here. There are many adopters that I know about but have not
documented here, please fill this in.
I divided this into production users, and also linked a selection of open source projects
that I know about here.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
A previosu commit removed suppoer for 4.18.x kernels for
arm64 and s390x but did not remove the config files. Fix it.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
Needed for containerd v1.2.0 otherwise:
$ ctr run -t docker.io/library/hello-world@sha256:f3b3b28a45160805bb16542c9531888519430e9e6d6ffc09d72261b0d26ff74f test
[ 1311.667587] overlayfs: failed to resolve '/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/5/fs': -2
ctr: failed to mount /tmp/containerd-mount111658703: no such file or directory
Signed-off-by: Ian Campbell <ijc@docker.com>
On Linux a key in `~/.docker/config.json` indicates if a credentials helper is
in use (and which), if one is then the method is identical to the Darwin case
so refactor to support that.
Signed-off-by: Ian Campbell <ijc@docker.com>
If the YAML does not specify a kernel, kernel commandline
or any containers, don't create empty files. Note, an
initrd file is still created if the kernel image contains
CPU ucode.
This only applies to kernel+initrd and tar-kernel-initrd
output formats.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
The logic for perf became too complex. Just build for latest LTS
and latest stable.
Disable for arm64 for now as it is broken for 4.19 due to a header
mismatch:
In file included from /linux/tools/arch/arm64/include/uapi/asm/unistd.h:20:0,
from libbpf.c:36:
/linux/tools/include/uapi/asm-generic/unistd.h:754:0: error: "__NR_fcntl" redefined [-Werror]
In file included from /usr/include/sys/syscall.h:4:0,
from /linux/tools/perf/perf-sys.h:7,
from libbpf.c:35:
/usr/include/bits/syscall.h:26:0: note: this is the location of the previous definition
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
The kernel configs were constructed by running the 4.18.x config
through the 4.19 oldconfig process.
The 4.19.x has a new option, RANDOM_TRUST_CPU, which indicates
if the CPUs random instruction is to be trusted. It defaults to
"no" and this default was accepted.
Most of the defaults were accepted, except for:
BLK_CGROUP_IOLATENCY=y
NFT_TUNNEL=y
NFT_OSF=y
NFT_TPROXY=y
NETFILTER_XT_MATCH_SOCKET=y
NET_VENDOR_CADENCE=n
NET_VENDOR_NETERION=n
NET_VENDOR_PACKET_ENGINES=n
We also disallow CIFS for insecure legacy servers:
CIFS_ALLOW_INSECURE_LEGACY=n
For arm64, the following changes were made to the default:
SENSORS_RASPBERRYPI_HWMON=y
CRYPTO_DEV_QCOM_RNG=m
CRYPTO_DEV_HISI_SEC=m
For s390x, the additional changes were made to the default:
KERNEL_BZIP2 (default is gzip)
GCC_PLUGINS=y
GCC_PLUGIN_STRUCTLEAK=y
GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=y
GCC_PLUGIN_RANDSTRUCT=y
GCC_PLUGIN_RANDSTRUCT_PERFORMANCE=y
Running the 4.18 and 4.19 kernel config through
./scripts/kconfig-split.py yields the following 4.19.x
only config options for x86_64:
The x86_64 kernel difference to 4.18 for
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_BLK_CGROUP_IOLATENCY=y
CONFIG_BNXT_HWMON=y
CONFIG_BUILD_SALT=""
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_CRASH_CORE=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_MEMCG_KMEM=y
CONFIG_MLX5_EN_ARFS=y
CONFIG_MLX5_EN_RXNFC=y
CONFIG_NETFILTER_NETLINK_OSF=y
CONFIG_NETFILTER_XT_MATCH_SOCKET=y
CONFIG_NFT_OSF=y
CONFIG_NFT_TPROXY=y
CONFIG_NFT_TUNNEL=y
CONFIG_NF_SOCKET_IPV4=y
CONFIG_NF_SOCKET_IPV6=y
CONFIG_XEN_SCRUB_PAGES_DEFAULT=y
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
