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 bool swapped_endian; 38 ssize_t cleanup_label; 39 __u32 nr_progs; 40 __u32 nr_maps; 41 int log_level; 42 int error; 43 struct ksym_relo_desc *relos; 44 int relo_cnt; 45 struct bpf_core_relo *core_relos; 46 int core_relo_cnt; 47 char attach_target[128]; 48 int attach_kind; 49 struct ksym_desc *ksyms; 50 __u32 nr_ksyms; 51 int fd_array; 52 int nr_fd_array; 53 }; 54 55 void bpf_gen__init(struct bpf_gen *gen, int log_level, int nr_progs, int nr_maps); 56 int bpf_gen__finish(struct bpf_gen *gen, int nr_progs, int nr_maps); 57 void bpf_gen__free(struct bpf_gen *gen); 58 void bpf_gen__load_btf(struct bpf_gen *gen, const void *raw_data, __u32 raw_size); 59 void bpf_gen__map_create(struct bpf_gen *gen, 60 enum bpf_map_type map_type, const char *map_name, 61 __u32 key_size, __u32 value_size, __u32 max_entries, 62 struct bpf_map_create_opts *map_attr, int map_idx); 63 void bpf_gen__prog_load(struct bpf_gen *gen, 64 enum bpf_prog_type prog_type, const char *prog_name, 65 const char *license, struct bpf_insn *insns, size_t insn_cnt, 66 struct bpf_prog_load_opts *load_attr, int prog_idx); 67 void bpf_gen__map_update_elem(struct bpf_gen *gen, int map_idx, void *value, __u32 value_size); 68 void bpf_gen__map_freeze(struct bpf_gen *gen, int map_idx); 69 void bpf_gen__record_attach_target(struct bpf_gen *gen, const char *name, enum bpf_attach_type type); 70 void bpf_gen__record_extern(struct bpf_gen *gen, const char *name, bool is_weak, 71 bool is_typeless, bool is_ld64, int kind, int insn_idx); 72 void bpf_gen__record_relo_core(struct bpf_gen *gen, const struct bpf_core_relo *core_relo); 73 void bpf_gen__populate_outer_map(struct bpf_gen *gen, int outer_map_idx, int key, int inner_map_idx); 74 75 #endif 76