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Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/btf.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/btf.c524
1 files changed, 499 insertions, 25 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
index 649f87382c8d..ac596cb06e40 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -39,8 +39,8 @@ static bool always_log;
#define BTF_END_RAW 0xdeadbeef
#define NAME_TBD 0xdeadb33f
-#define NAME_NTH(N) (0xffff0000 | N)
-#define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xffff0000)
+#define NAME_NTH(N) (0xfffe0000 | N)
+#define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xfffe0000)
#define GET_NAME_NTH_IDX(X) (X & 0x0000ffff)
#define MAX_NR_RAW_U32 1024
@@ -3661,6 +3661,285 @@ static struct btf_raw_test raw_tests[] = {
.err_str = "Invalid type_size",
},
+{
+ .descr = "decl_tag test #1, struct/member, well-formed",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_STRUCT_ENC(0, 2, 8), /* [2] */
+ BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+ BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0m1\0m2\0tag1\0tag2\0tag3"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 8,
+ .key_type_id = 1,
+ .value_type_id = 2,
+ .max_entries = 1,
+},
+{
+ .descr = "decl_tag test #2, union/member, well-formed",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_UNION_ENC(NAME_TBD, 2, 4), /* [2] */
+ BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+ BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 2,
+ .max_entries = 1,
+},
+{
+ .descr = "decl_tag test #3, variable, well-formed",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
+ BTF_VAR_ENC(NAME_TBD, 1, 1), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+ BTF_DECL_TAG_ENC(NAME_TBD, 3, -1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0local\0global\0tag1\0tag2"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+},
+{
+ .descr = "decl_tag test #4, func/parameter, well-formed",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+ BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 3, -1),
+ BTF_DECL_TAG_ENC(NAME_TBD, 3, 0),
+ BTF_DECL_TAG_ENC(NAME_TBD, 3, 1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0arg1\0arg2\0f\0tag1\0tag2\0tag3"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+},
+{
+ .descr = "decl_tag test #5, invalid value",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
+ BTF_DECL_TAG_ENC(0, 2, -1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0local\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid value",
+},
+{
+ .descr = "decl_tag test #6, invalid target type",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 1, -1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0tag1"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid type",
+},
+{
+ .descr = "decl_tag test #7, invalid vlen",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
+ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 1), 2), (0),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0local\0tag1"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "vlen != 0",
+},
+{
+ .descr = "decl_tag test #8, invalid kflag",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
+ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 1, 0), 2), (-1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0local\0tag1"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid btf_info kind_flag",
+},
+{
+ .descr = "decl_tag test #9, var, invalid component_idx",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_VAR_ENC(NAME_TBD, 1, 0), /* [2] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0local\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid component_idx",
+},
+{
+ .descr = "decl_tag test #10, struct member, invalid component_idx",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_STRUCT_ENC(0, 2, 8), /* [2] */
+ BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+ BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 2),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0m1\0m2\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 8,
+ .key_type_id = 1,
+ .value_type_id = 2,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid component_idx",
+},
+{
+ .descr = "decl_tag test #11, func parameter, invalid component_idx",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+ BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 3, 2),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0arg1\0arg2\0f\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid component_idx",
+},
+{
+ .descr = "decl_tag test #12, < -1 component_idx",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+ BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 3, -2),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0arg1\0arg2\0f\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid component_idx",
+},
+{
+ .descr = "decl_tag test #13, typedef, well-formed",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+},
+{
+ .descr = "decl_tag test #14, typedef, invalid component_idx",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0local\0tag"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = "tag_type_check_btf",
+ .key_size = sizeof(int),
+ .value_size = 4,
+ .key_type_id = 1,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .btf_load_err = true,
+ .err_str = "Invalid component_idx",
+},
+
}; /* struct btf_raw_test raw_tests[] */
static const char *get_next_str(const char *start, const char *end)
@@ -4268,7 +4547,7 @@ static void do_test_file(unsigned int test_num)
if (CHECK(err, "obj: %d", err))
return;
- prog = bpf_program__next(NULL, obj);
+ prog = bpf_object__next_program(obj, NULL);
if (CHECK(!prog, "Cannot find bpf_prog")) {
err = -1;
goto done;
@@ -6421,27 +6700,33 @@ const struct btf_dedup_test dedup_tests[] = {
BTF_MEMBER_ENC(NAME_NTH(4), 5, 64), /* const int *a; */
BTF_MEMBER_ENC(NAME_NTH(5), 2, 128), /* int b[16]; */
BTF_MEMBER_ENC(NAME_NTH(6), 1, 640), /* int c; */
- BTF_MEMBER_ENC(NAME_NTH(8), 13, 672), /* float d; */
+ BTF_MEMBER_ENC(NAME_NTH(8), 15, 672), /* float d; */
/* ptr -> [3] struct s */
BTF_PTR_ENC(3), /* [4] */
/* ptr -> [6] const int */
BTF_PTR_ENC(6), /* [5] */
/* const -> [1] int */
BTF_CONST_ENC(1), /* [6] */
+ /* tag -> [3] struct s */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */
+ /* tag -> [3] struct s, member 1 */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */
/* full copy of the above */
- BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [7] */
- BTF_TYPE_ARRAY_ENC(7, 7, 16), /* [8] */
- BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [9] */
- BTF_MEMBER_ENC(NAME_NTH(3), 10, 0),
- BTF_MEMBER_ENC(NAME_NTH(4), 11, 64),
- BTF_MEMBER_ENC(NAME_NTH(5), 8, 128),
- BTF_MEMBER_ENC(NAME_NTH(6), 7, 640),
- BTF_MEMBER_ENC(NAME_NTH(8), 13, 672),
- BTF_PTR_ENC(9), /* [10] */
- BTF_PTR_ENC(12), /* [11] */
- BTF_CONST_ENC(7), /* [12] */
- BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [13] */
+ BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4), /* [9] */
+ BTF_TYPE_ARRAY_ENC(9, 9, 16), /* [10] */
+ BTF_STRUCT_ENC(NAME_NTH(2), 5, 88), /* [11] */
+ BTF_MEMBER_ENC(NAME_NTH(3), 12, 0),
+ BTF_MEMBER_ENC(NAME_NTH(4), 13, 64),
+ BTF_MEMBER_ENC(NAME_NTH(5), 10, 128),
+ BTF_MEMBER_ENC(NAME_NTH(6), 9, 640),
+ BTF_MEMBER_ENC(NAME_NTH(8), 15, 672),
+ BTF_PTR_ENC(11), /* [12] */
+ BTF_PTR_ENC(14), /* [13] */
+ BTF_CONST_ENC(9), /* [14] */
+ BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [15] */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 11, -1), /* [16] */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 11, 1), /* [17] */
BTF_END_RAW,
},
BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0float\0d"),
@@ -6458,14 +6743,16 @@ const struct btf_dedup_test dedup_tests[] = {
BTF_MEMBER_ENC(NAME_NTH(1), 5, 64), /* const int *a; */
BTF_MEMBER_ENC(NAME_NTH(2), 2, 128), /* int b[16]; */
BTF_MEMBER_ENC(NAME_NTH(3), 1, 640), /* int c; */
- BTF_MEMBER_ENC(NAME_NTH(4), 7, 672), /* float d; */
+ BTF_MEMBER_ENC(NAME_NTH(4), 9, 672), /* float d; */
/* ptr -> [3] struct s */
BTF_PTR_ENC(3), /* [4] */
/* ptr -> [6] const int */
BTF_PTR_ENC(6), /* [5] */
/* const -> [1] int */
BTF_CONST_ENC(1), /* [6] */
- BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [7] */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [7] */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1), /* [8] */
+ BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4), /* [9] */
BTF_END_RAW,
},
BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"),
@@ -6590,9 +6877,12 @@ const struct btf_dedup_test dedup_tests[] = {
BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 8),
BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */
BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */
+ BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */
+ BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */
+ BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */
BTF_END_RAW,
},
- BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N"),
+ BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q"),
},
.expect = {
.raw_types = {
@@ -6616,9 +6906,12 @@ const struct btf_dedup_test dedup_tests[] = {
BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 8),
BTF_FUNC_ENC(NAME_TBD, 12), /* [13] func */
BTF_TYPE_FLOAT_ENC(NAME_TBD, 2), /* [14] float */
+ BTF_DECL_TAG_ENC(NAME_TBD, 13, -1), /* [15] decl_tag */
+ BTF_DECL_TAG_ENC(NAME_TBD, 13, 1), /* [16] decl_tag */
+ BTF_DECL_TAG_ENC(NAME_TBD, 7, -1), /* [17] decl_tag */
BTF_END_RAW,
},
- BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N"),
+ BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q"),
},
.opts = {
.dont_resolve_fwds = false,
@@ -6767,6 +7060,185 @@ const struct btf_dedup_test dedup_tests[] = {
.dedup_table_size = 1
},
},
+{
+ .descr = "dedup: func/func_arg/var tags",
+ .input = {
+ .raw_types = {
+ /* int */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ /* static int t */
+ BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */
+ /* void f(int a1, int a2) */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1),
+ BTF_FUNC_ENC(NAME_NTH(4), 2), /* [4] */
+ /* tag -> t */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [6] */
+ /* tag -> func */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [7] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [8] */
+ /* tag -> func arg a1 */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [9] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [10] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"),
+ },
+ .expect = {
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_VAR_ENC(NAME_NTH(1), 1, 0), /* [2] */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1),
+ BTF_FUNC_ENC(NAME_NTH(4), 2), /* [4] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [6] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [7] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"),
+ },
+ .opts = {
+ .dont_resolve_fwds = false,
+ },
+},
+{
+ .descr = "dedup: func/func_param tags",
+ .input = {
+ .raw_types = {
+ /* int */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ /* void f(int a1, int a2) */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+ BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */
+ /* void f(int a1, int a2) */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [4] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+ BTF_FUNC_ENC(NAME_NTH(3), 4), /* [5] */
+ /* tag -> f: tag1, tag2 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [6] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [7] */
+ /* tag -> f/a2: tag1, tag2 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [8] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [9] */
+ /* tag -> f: tag1, tag3 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 5, -1), /* [10] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 5, -1), /* [11] */
+ /* tag -> f/a2: tag1, tag3 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 5, 1), /* [12] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 5, 1), /* [13] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"),
+ },
+ .expect = {
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_FUNC_PROTO_ENC(0, 2), /* [2] */
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
+ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+ BTF_FUNC_ENC(NAME_NTH(3), 2), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [4] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1), /* [5] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [6] */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [7] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1), /* [8] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [9] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"),
+ },
+ .opts = {
+ .dont_resolve_fwds = false,
+ },
+},
+{
+ .descr = "dedup: struct/struct_member tags",
+ .input = {
+ .raw_types = {
+ /* int */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */
+ BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
+ BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
+ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [3] */
+ BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
+ BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
+ /* tag -> t: tag1, tag2 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [4] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */
+ /* tag -> t/m2: tag1, tag2 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */
+ /* tag -> t: tag1, tag3 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [8] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1), /* [9] */
+ /* tag -> t/m2: tag1, tag3 */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1), /* [10] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1), /* [11] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
+ },
+ .expect = {
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_STRUCT_ENC(NAME_NTH(1), 2, 8), /* [2] */
+ BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
+ BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [4] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 2, -1), /* [5] */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1), /* [6] */
+ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1), /* [7] */
+ BTF_DECL_TAG_ENC(NAME_NTH(6), 2, 1), /* [8] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
+ },
+ .opts = {
+ .dont_resolve_fwds = false,
+ },
+},
+{
+ .descr = "dedup: typedef tags",
+ .input = {
+ .raw_types = {
+ /* int */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */
+ BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [3] */
+ /* tag -> t: tag1, tag2 */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [4] */
+ BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [5] */
+ /* tag -> t: tag1, tag3 */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1), /* [6] */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1), /* [7] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"),
+ },
+ .expect = {
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_TYPEDEF_ENC(NAME_NTH(1), 1), /* [2] */
+ BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1), /* [3] */
+ BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1), /* [4] */
+ BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1), /* [5] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"),
+ },
+ .opts = {
+ .dont_resolve_fwds = false,
+ },
+},
};
@@ -6801,6 +7273,8 @@ static int btf_type_size(const struct btf_type *t)
return base_size + sizeof(struct btf_var);
case BTF_KIND_DATASEC:
return base_size + vlen * sizeof(struct btf_var_secinfo);
+ case BTF_KIND_DECL_TAG:
+ return base_size + sizeof(struct btf_decl_tag);
default:
fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind);
return -EINVAL;
@@ -6871,8 +7345,8 @@ static void do_test_dedup(unsigned int test_num)
goto done;
}
- test_btf_data = btf__get_raw_data(test_btf, &test_btf_size);
- expect_btf_data = btf__get_raw_data(expect_btf, &expect_btf_size);
+ test_btf_data = btf__raw_data(test_btf, &test_btf_size);
+ expect_btf_data = btf__raw_data(expect_btf, &expect_btf_size);
if (CHECK(test_btf_size != expect_btf_size,
"test_btf_size:%u != expect_btf_size:%u",
test_btf_size, expect_btf_size)) {
@@ -6926,8 +7400,8 @@ static void do_test_dedup(unsigned int test_num)
expect_str_cur += expect_len + 1;
}
- test_nr_types = btf__get_nr_types(test_btf);
- expect_nr_types = btf__get_nr_types(expect_btf);
+ test_nr_types = btf__type_cnt(test_btf);
+ expect_nr_types = btf__type_cnt(expect_btf);
if (CHECK(test_nr_types != expect_nr_types,
"test_nr_types:%u != expect_nr_types:%u",
test_nr_types, expect_nr_types)) {
@@ -6935,7 +7409,7 @@ static void do_test_dedup(unsigned int test_num)
goto done;
}
- for (i = 1; i <= test_nr_types; i++) {
+ for (i = 1; i < test_nr_types; i++) {
const struct btf_type *test_type, *expect_type;
int test_size, expect_size;
generated by cgit (git 2.34.1) at 2025-02-25 09:38:57 +0000