compile and install perf tool from linux
source for performance monitoring.
change the setting before run perf
echo -1 > /proc/sys/kernel/perf_event_paranoid
echo 0 > /proc/sys/kernel/kptr_restrict
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
how to generate logo format:
apt-get install netpbm
1 convert png format to ppm format
pngtopnm bpfire-logo.png > bpfire-logo.ppm
2 reduce the color count to 224
ppmquant 224 bpfire-logo.ppm > bpfire-logo-224.ppm
3 convert ppm raw format to ascii format
pnmnoraw bpfire-logo-224.ppm > bpfire-logo-ascii.ppm
cp bpfire-logo-ascii.ppm config/kernel/
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
upgrade kernel to recent stable release 6.10.11
1, scripts/kconfig/merge_config.sh does not work for 6.10.11
2, vmlinux BTF binary name changed in 6.10.11
3, remove rtl8812au for now since it has compiling error
4, remove 5.15 nfqueue patch since it does not apply cleanly
also see [0]
[0]: https://github.com/vincentmli/BPFire/issues/41
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
error when run lunatik which loads lunatik kernel modules
root@bpfire-2 lua]# lunatik run examples/filter/sni false
[root@bpfire-2 lua]# dmesg
[ 330.411665] lunatik: loading out-of-tree module taints kernel.
[ 330.411680] lunatik: module verification failed: signature and/or required key missing - tainting kernel
[ 330.433955] Kernel module BTF mismatch detected, BTF debug info may be unavailable for some modules
[ 330.767701] missing module BTF, cannot register kfuncs
BPFire chroot build mount /sys/kernel/btf/vmlinux which is
the host binary vmlinux BTF to build against lunatik kernel module,
which result in above error. adjust BPFire kernel build to save
the binary vmlinux BTF to chroot
/lib/modules/6.6.15-ipfire/build/vmlinux for lunatik kernel module.
create the vmlinux.h from the same binary vmlinux BTF for the ebpf https.o
lunatik kernel module is depending on kernel build, adjust the lunatik
build accordingly when kerne upgrade in future.
See https://github.com/vincentmli/BPFire/issues/40
see https://github.com/luainkernel/lunatik/issues/189
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
lunatik kernel modules requires kernel to be built first
so /lib/modules is available for lunatik
lunatik also requires resolve_btfids under:
/lib/modules/$(VER)-$(VERSUFIX)/build/tools/bpf/resolve_btfids/
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
bpftool comes with Linux kernel source and
it is handy to have bpftool on ipfire kernel
with BPF/BTF enabled to diagnosis BPF related
issue.
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
Compiling the kernel has automatically introduced
CONFIG_INIT_STACK_ALL_ZERO=y and removed GCC's structleak plugin (not to
be confused with its stackleak counterpart). However, according to
related documentation, this neither introduces a security nor
performance disadvantage.
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>
This removes support for building IPFire for 32 bit ARM architectures.
This has been decided in August 2022 with six months notice as there are
not very many users and hardware is generally not available any more.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
