selftests/bpf: Switch to new btf__type_cnt/btf__raw_data APIs

Replace the calls to btf__get_nr_types/btf__get_raw_data in
selftests with new APIs btf__type_cnt/btf__raw_data. The old
APIs will be deprecated in libbpf v0.7+.

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211022130623.1548429-6-hengqi.chen@gmail.com

tools/testing/selftests/bpf/btf_helpers.c

@@ -215,7 +215,7 @@ int btf_validate_raw(struct btf *btf, int nr_types, const char *exp_types[])
 	int i;
 	bool ok = true;
 
-	ASSERT_EQ(btf__get_nr_types(btf), nr_types, "btf_nr_types");
+	ASSERT_EQ(btf__type_cnt(btf) - 1, nr_types, "btf_nr_types");
 
 	for (i = 1; i <= nr_types; i++) {
 		if (!ASSERT_STREQ(btf_type_raw_dump(btf, i), exp_types[i - 1], "raw_dump"))
@@ -254,7 +254,7 @@ const char *btf_type_c_dump(const struct btf *btf)
 		return NULL;
 	}
 
-	for (i = 1; i <= btf__get_nr_types(btf); i++) {
+	for (i = 1; i < btf__type_cnt(btf); i++) {
 		err = btf_dump__dump_type(d, i);
 		if (err) {
 			fprintf(stderr, "Failed to dump type [%d]: %d\n", i, err);

tools/testing/selftests/bpf/prog_tests/btf.c

@@ -7274,8 +7274,8 @@ 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)) {
@@ -7329,8 +7329,8 @@ 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)) {
@@ -7338,7 +7338,7 @@ 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;
 

tools/testing/selftests/bpf/prog_tests/btf_dump.c

@@ -27,7 +27,7 @@ static struct btf_dump_test_case {
 static int btf_dump_all_types(const struct btf *btf,
 			      const struct btf_dump_opts *opts)
 {
-	size_t type_cnt = btf__get_nr_types(btf);
+	size_t type_cnt = btf__type_cnt(btf);
 	struct btf_dump *d;
 	int err = 0, id;
 
@@ -36,7 +36,7 @@ static int btf_dump_all_types(const struct btf *btf,
 	if (err)
 		return err;
 
-	for (id = 1; id <= type_cnt; id++) {
+	for (id = 1; id < type_cnt; id++) {
 		err = btf_dump__dump_type(d, id);
 		if (err)
 			goto done;
@@ -171,7 +171,7 @@ void test_btf_dump_incremental(void)
 	err = btf__add_field(btf, "x", 2, 0, 0);
 	ASSERT_OK(err, "field_ok");
 
-	for (i = 1; i <= btf__get_nr_types(btf); i++) {
+	for (i = 1; i < btf__type_cnt(btf); i++) {
 		err = btf_dump__dump_type(d, i);
 		ASSERT_OK(err, "dump_type_ok");
 	}
@@ -210,7 +210,7 @@ void test_btf_dump_incremental(void)
 	err = btf__add_field(btf, "s", 3, 32, 0);
 	ASSERT_OK(err, "field_ok");
 
-	for (i = 1; i <= btf__get_nr_types(btf); i++) {
+	for (i = 1; i < btf__type_cnt(btf); i++) {
 		err = btf_dump__dump_type(d, i);
 		ASSERT_OK(err, "dump_type_ok");
 	}

tools/testing/selftests/bpf/prog_tests/btf_endian.c

@@ -32,7 +32,7 @@ void test_btf_endian() {
 	ASSERT_EQ(btf__endianness(btf), swap_endian, "endian");
 
 	/* Get raw BTF data in non-native endianness... */
-	raw_data = btf__get_raw_data(btf, &raw_sz);
+	raw_data = btf__raw_data(btf, &raw_sz);
 	if (!ASSERT_OK_PTR(raw_data, "raw_data_inverted"))
 		goto err_out;
 
@@ -42,9 +42,9 @@ void test_btf_endian() {
 		goto err_out;
 
 	ASSERT_EQ(btf__endianness(swap_btf), swap_endian, "endian");
-	ASSERT_EQ(btf__get_nr_types(swap_btf), btf__get_nr_types(btf), "nr_types");
+	ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types");
 
-	swap_raw_data = btf__get_raw_data(swap_btf, &swap_raw_sz);
+	swap_raw_data = btf__raw_data(swap_btf, &swap_raw_sz);
 	if (!ASSERT_OK_PTR(swap_raw_data, "swap_raw_data"))
 		goto err_out;
 
@@ -58,7 +58,7 @@ void test_btf_endian() {
 
 	/* swap it back to native endianness */
 	btf__set_endianness(swap_btf, endian);
-	swap_raw_data = btf__get_raw_data(swap_btf, &swap_raw_sz);
+	swap_raw_data = btf__raw_data(swap_btf, &swap_raw_sz);
 	if (!ASSERT_OK_PTR(swap_raw_data, "swap_raw_data"))
 		goto err_out;
 
@@ -75,7 +75,7 @@ void test_btf_endian() {
 	swap_btf = NULL;
 
 	btf__set_endianness(btf, swap_endian);
-	raw_data = btf__get_raw_data(btf, &raw_sz);
+	raw_data = btf__raw_data(btf, &raw_sz);
 	if (!ASSERT_OK_PTR(raw_data, "raw_data_inverted"))
 		goto err_out;
 
@@ -85,7 +85,7 @@ void test_btf_endian() {
 		goto err_out;
 
 	ASSERT_EQ(btf__endianness(swap_btf), swap_endian, "endian");
-	ASSERT_EQ(btf__get_nr_types(swap_btf), btf__get_nr_types(btf), "nr_types");
+	ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types");
 
 	/* the type should appear as if it was stored in native endianness */
 	t = btf__type_by_id(swap_btf, var_id);

tools/testing/selftests/bpf/prog_tests/btf_split.c

@@ -72,7 +72,7 @@ void test_btf_split() {
 	d = btf_dump__new(btf2, NULL, &opts, btf_dump_printf);
 	if (!ASSERT_OK_PTR(d, "btf_dump__new"))
 		goto cleanup;
-	for (i = 1; i <= btf__get_nr_types(btf2); i++) {
+	for (i = 1; i < btf__type_cnt(btf2); i++) {
 		err = btf_dump__dump_type(d, i);
 		ASSERT_OK(err, "dump_type_ok");
 	}

tools/testing/selftests/bpf/prog_tests/core_autosize.c

@@ -112,7 +112,7 @@ void test_core_autosize(void)
 	if (!ASSERT_OK_PTR(f, "btf_fdopen"))
 		goto cleanup;
 
-	raw_data = btf__get_raw_data(btf, &raw_sz);
+	raw_data = btf__raw_data(btf, &raw_sz);
 	if (!ASSERT_OK_PTR(raw_data, "raw_data"))
 		goto cleanup;
 	written = fwrite(raw_data, 1, raw_sz, f);

tools/testing/selftests/bpf/prog_tests/core_reloc.c

@@ -381,7 +381,7 @@ static int setup_type_id_case_local(struct core_reloc_test_case *test)
 	exp->local_anon_void_ptr = -1;
 	exp->local_anon_arr = -1;
 
-	for (i = 1; i <= btf__get_nr_types(local_btf); i++)
+	for (i = 1; i < btf__type_cnt(local_btf); i++)
 	{
 		t = btf__type_by_id(local_btf, i);
 		/* we are interested only in anonymous types */

tools/testing/selftests/bpf/prog_tests/resolve_btfids.c

@@ -106,9 +106,9 @@ static int resolve_symbols(void)
 		  "Failed to load BTF from btf_data.o\n"))
 		return -1;
 
-	nr = btf__get_nr_types(btf);
+	nr = btf__type_cnt(btf);
 
-	for (type_id = 1; type_id <= nr; type_id++) {
+	for (type_id = 1; type_id < nr; type_id++) {
 		if (__resolve_symbol(btf, type_id))
 			break;
 	}