Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\btf.c Create Date:2022-07-28 13:18:48
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:btf_array_check_member

Proto:static int btf_array_check_member(struct btf_verifier_env *env, const struct btf_type *struct_type, const struct btf_member *member, const struct btf_type *member_type)

Type:int

Parameter:

TypeParameterName
struct btf_verifier_env *env
const struct btf_type *struct_type
const struct btf_member *member
const struct btf_type *member_type
1921  struct_bits_off = If the type info kind_flag is set, the btf_member offset* contains both member bitfield size and bit offset. The* bitfield size is set for bitfield members. If the type* info kind_flag is not set, the offset contains only bit* offset.
1924  btf = btf
1926  If BITS_PER_BYTE_MASKED(struct_bits_off) Then
1927  btf_verifier_log_member(env, struct_type, member, "Member is not byte aligned")
1929  Return -EINVAL
1932  array_type_id = type
1933  btf_type_id_size(btf, & array_type_id, & array_size)
1934  struct_size = size
1935  bytes_offset = BITS_ROUNDDOWN_BYTES(struct_bits_off)
1936  If struct_size - bytes_offset < array_size Then
1937  btf_verifier_log_member(env, struct_type, member, "Member exceeds struct_size")
1939  Return -EINVAL
1942  Return 0