Besides probing BPF information in running system, bpftool is also used in
generating skeleton, dumping BTF, etc. that is widely used in modern BPF
development. Make it available as a host tool so that we can use it in
package build.
Tested build targeting malta/le on Arch Linux x86_64. bpftools currently
does not support processing cross-endian BPF objects, so big-endian host
is needed to build for big-endian targets using bpftools.
Signed-off-by: Eric Long <i@hack3r.moe>
Link: https://github.com/openwrt/openwrt/pull/16122
Signed-off-by: Robert Marko <robimarko@gmail.com>
21b155e0ff