selftests/bpf: Add test for the packed enum member in struct/union (6ffe559a) · Commits · 戴 / test

tools/testing/selftests/bpf/test_btf.c

+42 −0

Original line number	Diff line number	Diff line
		@@ -1062,6 +1062,48 @@ static struct btf_raw_test raw_tests[] = {
		.err_str = "Member exceeds struct_size",
		},

		/* Test member unexceeds the size of struct
		*
		* enum E {
		* E0,
		* E1,
		* };
		*
		* struct A {
		* char m;
		* enum E __attribute__((packed)) n;
		* };
		*/
		{
		.descr = "size check test #5",
		.raw_types = {
		/* int / / [1] */
		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
		/* char / / [2] */
		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),
		/* enum E { / / [3] */
		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 1),
		BTF_ENUM_ENC(NAME_TBD, 0),
		BTF_ENUM_ENC(NAME_TBD, 1),
		/* } */
		/* struct A { / / [4] */
		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 2),
		BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* char m; */
		BTF_MEMBER_ENC(NAME_TBD, 3, 8),/* enum E __attribute__((packed)) n; */
		/* } */
		BTF_END_RAW,
		},
		.str_sec = "\0E\0E0\0E1\0A\0m\0n",
		.str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"),
		.map_type = BPF_MAP_TYPE_ARRAY,
		.map_name = "size_check5_map",
		.key_size = sizeof(int),
		.value_size = 2,
		.key_type_id = 1,
		.value_type_id = 4,
		.max_entries = 4,
		},

		/* typedef const void * const_void_ptr;
		* struct A {
		* const_void_ptr m;