blob: bc4555a003a724d9be124f17a4f80dcf893e7b08 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#ifndef __BPF_LEGACY__
#define __BPF_LEGACY__
#if __GNUC__ && !__clang__
/* Functions to emit BPF_LD_ABS and BPF_LD_IND instructions. We
* provide the "standard" names as synonyms of the corresponding GCC
* builtins. Note how the SKB argument is ignored.
*/
#define load_byte(skb, off) __builtin_bpf_load_byte(off)
#define load_half(skb, off) __builtin_bpf_load_half(off)
#define load_word(skb, off) __builtin_bpf_load_word(off)
#else
/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions
*/
unsigned long long load_byte(void *skb, unsigned long long off) asm("llvm.bpf.load.byte");
unsigned long long load_half(void *skb, unsigned long long off) asm("llvm.bpf.load.half");
unsigned long long load_word(void *skb, unsigned long long off) asm("llvm.bpf.load.word");
#endif
#endif
|
