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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__ */