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bpf_elf.h
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/* 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__ */