diff options
Diffstat (limited to '')
| -rw-r--r-- | include/linux/bpf.h | 21 | ||||
| -rw-r--r-- | include/linux/bpf_verifier.h | 1 | ||||
| -rw-r--r-- | include/linux/btf.h | 1 | ||||
| -rw-r--r-- | include/linux/filter.h | 7 |
4 files changed, 30 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index e82b7039fc66..0c992b86eb2c 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -319,7 +319,28 @@ struct bpf_prog_aux { struct bpf_prog_offload *offload; struct btf *btf; struct bpf_func_info *func_info; + /* bpf_line_info loaded from userspace. linfo->insn_off + * has the xlated insn offset. + * Both the main and sub prog share the same linfo. + * The subprog can access its first linfo by + * using the linfo_idx. + */ + struct bpf_line_info *linfo; + /* jited_linfo is the jited addr of the linfo. It has a + * one to one mapping to linfo: + * jited_linfo[i] is the jited addr for the linfo[i]->insn_off. + * Both the main and sub prog share the same jited_linfo. + * The subprog can access its first jited_linfo by + * using the linfo_idx. + */ + void **jited_linfo; u32 func_info_cnt; + u32 nr_linfo; + /* subprog can use linfo_idx to access its first linfo and + * jited_linfo. + * main prog always has linfo_idx == 0 + */ + u32 linfo_idx; union { struct work_struct work; struct rcu_head rcu; diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 11f5df1092d9..c736945be7c5 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -203,6 +203,7 @@ static inline bool bpf_verifier_log_needed(const struct bpf_verifier_log *log) struct bpf_subprog_info { u32 start; /* insn idx of function entry point */ + u32 linfo_idx; /* The idx to the main_prog->aux->linfo */ u16 stack_depth; /* max. stack depth used by this function */ }; diff --git a/include/linux/btf.h b/include/linux/btf.h index 8c2199b5d250..b98405a56383 100644 --- a/include/linux/btf.h +++ b/include/linux/btf.h @@ -46,6 +46,7 @@ void btf_type_seq_show(const struct btf *btf, u32 type_id, void *obj, struct seq_file *m); int btf_get_fd_by_id(u32 id); u32 btf_id(const struct btf *btf); +bool btf_name_offset_valid(const struct btf *btf, u32 offset); #ifdef CONFIG_BPF_SYSCALL const struct btf_type *btf_type_by_id(const struct btf *btf, u32 type_id); diff --git a/include/linux/filter.h b/include/linux/filter.h index 5a26a7caa98f..537e9e7c6e6f 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -725,6 +725,13 @@ void bpf_prog_free(struct bpf_prog *fp); bool bpf_opcode_in_insntable(u8 code); +void bpf_prog_free_linfo(struct bpf_prog *prog); +void bpf_prog_fill_jited_linfo(struct bpf_prog *prog, + const u32 *insn_to_jit_off); +int bpf_prog_alloc_jited_linfo(struct bpf_prog *prog); +void bpf_prog_free_jited_linfo(struct bpf_prog *prog); +void bpf_prog_free_unused_jited_linfo(struct bpf_prog *prog); + struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags); struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size, gfp_t gfp_extra_flags); |