Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\btf.c Create Date:2022-07-28 13:18:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:btf_ptr_resolve

Proto:static int btf_ptr_resolve(struct btf_verifier_env *env, const struct resolve_vertex *v)

Type:int

Parameter:

TypeParameterName
struct btf_verifier_env *env
const struct resolve_vertex *v
1771  t = t
1772  next_type_id = type
1773  btf = btf
1775  next_type = btf_type_by_id(btf, next_type_id)
1776  If Not next_type || Types that act only as a source, not sink or intermediate* type when resolving. Then
1777  btf_verifier_log_type(env, t, "Invalid type_id")
1778  Return -EINVAL
1781  If Not env_type_is_resolve_sink(env, next_type) && Not env_type_is_resolved(env, next_type_id) Then Return env_stack_push(env, next_type, next_type_id)
1793  If btf_type_is_modifier(next_type) Then
1797  resolved_type_id = next_type_id
1798  resolved_type = The input param "type_id" must point to a needs_resolve type
1800  If btf_type_is_ptr(resolved_type) && Not env_type_is_resolve_sink(env, resolved_type) && Not env_type_is_resolved(env, resolved_type_id) Then Return env_stack_push(env, resolved_type, resolved_type_id)
1807  If Not btf_type_id_size(btf, & next_type_id, NULL) Then
1808  If env_type_is_resolved(env, next_type_id) Then next_type = The input param "type_id" must point to a needs_resolve type
1811  If Not btf_type_is_void(next_type) && Not btf_type_is_fwd(next_type) && Not btf_type_is_func_proto(next_type) Then
1814  btf_verifier_log_type(env, t, "Invalid type_id")
1815  Return -EINVAL
1819  env_stack_pop_resolved(env, next_type_id, 0)
1821  Return 0