23 lines
895 B
C
23 lines
895 B
C
/* 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
|
|
|