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