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
8 struct 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
17 struct 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
31 struct 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
54 void bpf_gen__init(struct bpf_gen *gen, int log_level, int nr_progs, int nr_maps);
55 int bpf_gen__finish(struct bpf_gen *gen, int nr_progs, int nr_maps);
56 void bpf_gen__free(struct bpf_gen *gen);
57 void bpf_gen__load_btf(struct bpf_gen *gen, const void *raw_data, __u32 raw_size);
58 void 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);
62 void 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);
66 void bpf_gen__map_update_elem(struct bpf_gen *gen, int map_idx, void *value, __u32 value_size);
67 void bpf_gen__map_freeze(struct bpf_gen *gen, int map_idx);
68 void bpf_gen__record_attach_target(struct bpf_gen *gen, const char *name, enum bpf_attach_type type);
69 void 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);
71 void bpf_gen__record_relo_core(struct bpf_gen *gen, const struct bpf_core_relo *core_relo);
72 void bpf_gen__populate_outer_map(struct bpf_gen *gen, int outer_map_idx, int key, int inner_map_idx);
73
74 #endif
75
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