| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __BPF_ELF__ |
| #define __BPF_ELF__ |
| |
| #include <asm/types.h> |
| |
| /* Note: |
| * |
| * Below ELF section names and bpf_elf_map structure definition |
| * are not (!) kernel ABI. It's rather a "contract" between the |
| * application and the BPF loader in tc. For compatibility, the |
| * section names should stay as-is. Introduction of aliases, if |
| * needed, are a possibility, though. |
| */ |
| |
| /* ELF section names, etc */ |
| #define ELF_SECTION_LICENSE "license" |
| #define ELF_SECTION_MAPS "maps" |
| #define ELF_SECTION_PROG "prog" |
| #define ELF_SECTION_CLASSIFIER "classifier" |
| #define ELF_SECTION_ACTION "action" |
| |
| #define ELF_MAX_MAPS 64 |
| #define ELF_MAX_LICENSE_LEN 128 |
| |
| /* Object pinning settings */ |
| #define PIN_NONE 0 |
| #define PIN_OBJECT_NS 1 |
| #define PIN_GLOBAL_NS 2 |
| |
| /* ELF map definition */ |
| struct bpf_elf_map { |
| __u32 type; |
| __u32 size_key; |
| __u32 size_value; |
| __u32 max_elem; |
| __u32 flags; |
| __u32 id; |
| __u32 pinning; |
| __u32 inner_id; |
| __u32 inner_idx; |
| }; |
| |
| #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 = { } |
| |
| #endif /* __BPF_ELF__ */ |