Function report |
Source Code:kernel\bpf\btf.c |
Create Date:2022-07-28 13:18:51 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:btf_array_check_meta
Proto:static s32 btf_array_check_meta(struct btf_verifier_env *env, const struct btf_type *t, u32 meta_left)
Type:s32
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct btf_verifier_env * | env | |
| const struct btf_type * | t | |
| u32 | meta_left |
| 1949 | array = btf_type_array(t) |
| 1950 | meta_needed = size of array |
| 1952 | If meta_left < meta_needed Then |
| 1953 | btf_verifier_log_basic(env, t, "meta_left:%u meta_needed:%u", meta_left, meta_needed) |
| 1956 | Return -EINVAL |
| 1960 | If name_off Then |
| 1961 | btf_verifier_log_type(env, t, "Invalid name") |
| 1962 | Return -EINVAL |
| 1965 | If btf_type_vlen(t) Then |
| 1966 | btf_verifier_log_type(env, t, "vlen != 0") |
| 1967 | Return -EINVAL |
| 1970 | If btf_type_kflag(t) Then |
| 1971 | btf_verifier_log_type(env, t, "Invalid btf_info kind_flag") |
| 1972 | Return -EINVAL |
| 1975 | If size Then |
| 1976 | btf_verifier_log_type(env, t, "size != 0") |
| 1977 | Return -EINVAL |
| 1983 | If Not type || Not BTF_TYPE_ID_VALID(type) Then |
| 1984 | btf_verifier_log_type(env, t, "Invalid elem") |
| 1985 | Return -EINVAL |
| 1988 | If Not index_type || Not BTF_TYPE_ID_VALID(index_type) Then |
| 1989 | btf_verifier_log_type(env, t, "Invalid index") |
| 1990 | Return -EINVAL |
| 1993 | btf_verifier_log_type(env, t, NULL) |
| 1995 | Return meta_needed |
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