EF_BPF_GNU_XBPF

["Jose E. Marchesi" <jose.marchesi@xxxxxxxxxx>]

Hello BPF people!

In order to ease the testing of the GCC bpf port we are adding a number
of extensions to the BPF ISA.

We would like to use one bit in the e_flags field of the ELF header in
order to flag that the code in the ELF file is not plain eBPF:

For EM_BPF:

#define EF_BPF_GNU_XBPF 0x00000001

Any objection?
Salud!