The following built-in functions are available for eBPF targets.
unsigned
long long __builtin_bpf_load_byte (unsigned long long offset)
¶Load a byte from the struct sk_buff
packet data pointed by the register %r6
and return it.
unsigned
long long __builtin_bpf_load_half (unsigned long long offset)
¶Load 16-bits from the struct sk_buff
packet data pointed by the register %r6
and return it.
unsigned
long long __builtin_bpf_load_word (unsigned long long offset)
¶Load 32-bits from the struct sk_buff
packet data pointed by the register %r6
and return it.