6.60.12 BPF Built-in Functions
The following built-in functions are available for eBPF targets.
- Built-in Function: 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.
- Built-in Function: 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.
- Built-in Function: 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.