| /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ |
| #ifndef __BPF_LEGACY__ |
| #define __BPF_LEGACY__ |
| |
| /* |
| * legacy bpf_map_def with extra fields supported only by bpf_load(), do not |
| * use outside of samples/bpf |
| */ |
| struct bpf_map_def_legacy { |
| unsigned int type; |
| unsigned int key_size; |
| unsigned int value_size; |
| unsigned int max_entries; |
| unsigned int map_flags; |
| unsigned int inner_map_idx; |
| unsigned int numa_node; |
| }; |
| |
| #define BPF_ANNOTATE_KV_PAIR(name, type_key, type_val) \ |
| struct ____btf_map_##name { \ |
| type_key key; \ |
| type_val value; \ |
| }; \ |
| struct ____btf_map_##name \ |
| __attribute__ ((section(".maps." #name), used)) \ |
| ____btf_map_##name = { } |
| |
| /* 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 |
| |
