1/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
2/* Copyright (c) 2021 Facebook */
3#ifndef __BPF_GEN_INTERNAL_H
4#define __BPF_GEN_INTERNAL_H
5
6#include "bpf.h"
7
8struct ksym_relo_desc {
9	const char *name;
10	int kind;
11	int insn_idx;
12	bool is_weak;
13	bool is_typeless;
14	bool is_ld64;
15};
16
17struct ksym_desc {
18	const char *name;
19	int ref;
20	int kind;
21	union {
22		/* used for kfunc */
23		int off;
24		/* used for typeless ksym */
25		bool typeless;
26	};
27	int insn;
28	bool is_ld64;
29};
30
31struct bpf_gen {
32	struct gen_loader_opts *opts;
33	void *data_start;
34	void *data_cur;
35	void *insn_start;
36	void *insn_cur;
37	ssize_t cleanup_label;
38	__u32 nr_progs;
39	__u32 nr_maps;
40	int log_level;
41	int error;
42	struct ksym_relo_desc *relos;
43	int relo_cnt;
44	struct bpf_core_relo *core_relos;
45	int core_relo_cnt;
46	char attach_target[128];
47	int attach_kind;
48	struct ksym_desc *ksyms;
49	__u32 nr_ksyms;
50	int fd_array;
51	int nr_fd_array;
52};
53
54void bpf_gen__init(struct bpf_gen *gen, int log_level, int nr_progs, int nr_maps);
55int bpf_gen__finish(struct bpf_gen *gen, int nr_progs, int nr_maps);
56void bpf_gen__free(struct bpf_gen *gen);
57void bpf_gen__load_btf(struct bpf_gen *gen, const void *raw_data, __u32 raw_size);
58void bpf_gen__map_create(struct bpf_gen *gen,
59			 enum bpf_map_type map_type, const char *map_name,
60			 __u32 key_size, __u32 value_size, __u32 max_entries,
61			 struct bpf_map_create_opts *map_attr, int map_idx);
62void bpf_gen__prog_load(struct bpf_gen *gen,
63			enum bpf_prog_type prog_type, const char *prog_name,
64			const char *license, struct bpf_insn *insns, size_t insn_cnt,
65			struct bpf_prog_load_opts *load_attr, int prog_idx);
66void bpf_gen__map_update_elem(struct bpf_gen *gen, int map_idx, void *value, __u32 value_size);
67void bpf_gen__map_freeze(struct bpf_gen *gen, int map_idx);
68void bpf_gen__record_attach_target(struct bpf_gen *gen, const char *name, enum bpf_attach_type type);
69void bpf_gen__record_extern(struct bpf_gen *gen, const char *name, bool is_weak,
70			    bool is_typeless, bool is_ld64, int kind, int insn_idx);
71void bpf_gen__record_relo_core(struct bpf_gen *gen, const struct bpf_core_relo *core_relo);
72void bpf_gen__populate_outer_map(struct bpf_gen *gen, int outer_map_idx, int key, int inner_map_idx);
73
74#endif
75