selftests/bpf: add trickier size resolution tests (dd13f3ca) · Commits · 戴 / test

tools/testing/selftests/bpf/test_btf.c

+88 −0

Original line number	Diff line number	Diff line
		@@ -3417,6 +3417,94 @@ static struct btf_raw_test raw_tests[] = {
		.value_type_id = 1,
		.max_entries = 4,
		},
		/*
		* typedef int arr_t[16];
		* struct s {
		* arr_t *a;
		* };
		*/
		{
		.descr = "struct->ptr->typedef->array->int size resolution",
		.raw_types = {
		BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */
		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
		BTF_PTR_ENC(3), /* [2] */
		BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
		BTF_TYPE_ARRAY_ENC(5, 5, 16), /* [4] */
		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [5] */
		BTF_END_RAW,
		},
		BTF_STR_SEC("\0s\0a\0arr_t"),
		.map_type = BPF_MAP_TYPE_ARRAY,
		.map_name = "ptr_mod_chain_size_resolve_map",
		.key_size = sizeof(int),
		.value_size = sizeof(int) * 16,
		.key_type_id = 5 /* int */,
		.value_type_id = 3 /* arr_t */,
		.max_entries = 4,
		},
		/*
		* typedef int arr_t[16][8][4];
		* struct s {
		* arr_t *a;
		* };
		*/
		{
		.descr = "struct->ptr->typedef->multi-array->int size resolution",
		.raw_types = {
		BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */
		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
		BTF_PTR_ENC(3), /* [2] */
		BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
		BTF_TYPE_ARRAY_ENC(5, 7, 16), /* [4] */
		BTF_TYPE_ARRAY_ENC(6, 7, 8), /* [5] */
		BTF_TYPE_ARRAY_ENC(7, 7, 4), /* [6] */
		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [7] */
		BTF_END_RAW,
		},
		BTF_STR_SEC("\0s\0a\0arr_t"),
		.map_type = BPF_MAP_TYPE_ARRAY,
		.map_name = "multi_arr_size_resolve_map",
		.key_size = sizeof(int),
		.value_size = sizeof(int) * 16 * 8 * 4,
		.key_type_id = 7 /* int */,
		.value_type_id = 3 /* arr_t */,
		.max_entries = 4,
		},
		/*
		* typedef int int_t;
		* typedef int_t arr3_t[4];
		* typedef arr3_t arr2_t[8];
		* typedef arr2_t arr1_t[16];
		* struct s {
		* arr1_t *a;
		* };
		*/
		{
		.descr = "typedef/multi-arr mix size resolution",
		.raw_types = {
		BTF_STRUCT_ENC(NAME_TBD, 1, 8), /* [1] */
		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
		BTF_PTR_ENC(3), /* [2] */
		BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */
		BTF_TYPE_ARRAY_ENC(5, 10, 16), /* [4] */
		BTF_TYPEDEF_ENC(NAME_TBD, 6), /* [5] */
		BTF_TYPE_ARRAY_ENC(7, 10, 8), /* [6] */
		BTF_TYPEDEF_ENC(NAME_TBD, 8), /* [7] */
		BTF_TYPE_ARRAY_ENC(9, 10, 4), /* [8] */
		BTF_TYPEDEF_ENC(NAME_TBD, 10), /* [9] */
		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [10] */
		BTF_END_RAW,
		},
		BTF_STR_SEC("\0s\0a\0arr1_t\0arr2_t\0arr3_t\0int_t"),
		.map_type = BPF_MAP_TYPE_ARRAY,
		.map_name = "typedef_arra_mix_size_resolve_map",
		.key_size = sizeof(int),
		.value_size = sizeof(int) * 16 * 8 * 4,
		.key_type_id = 10 /* int */,
		.value_type_id = 3 /* arr_t */,
		.max_entries = 4,
		},

		}; /* struct btf_raw_test raw_tests[] */

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