| /* 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 | |