1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2020 Facebook */
 3#include <test_progs.h>
 4
 5const char *err_str;
 6bool found;
 7
 8static int libbpf_debug_print(enum libbpf_print_level level,
 9			      const char *format, va_list args)
10{
11	char *log_buf;
12
13	if (level != LIBBPF_WARN ||
14	    strcmp(format, "libbpf: \n%s\n")) {
15		vprintf(format, args);
16		return 0;
17	}
18
19	log_buf = va_arg(args, char *);
20	if (!log_buf)
21		goto out;
22	if (err_str && strstr(log_buf, err_str) == 0)
23		found = true;
24out:
25	printf(format, log_buf);
26	return 0;
27}
28
29extern int extra_prog_load_log_flags;
30
31static int check_load(const char *file)
32{
33	struct bpf_prog_load_attr attr;
34	struct bpf_object *obj = NULL;
35	int err, prog_fd;
36
37	memset(&attr, 0, sizeof(struct bpf_prog_load_attr));
38	attr.file = file;
39	attr.prog_type = BPF_PROG_TYPE_UNSPEC;
40	attr.log_level = extra_prog_load_log_flags;
41	attr.prog_flags = BPF_F_TEST_RND_HI32;
42	found = false;
43	err = bpf_prog_load_xattr(&attr, &obj, &prog_fd);
44	bpf_object__close(obj);
45	return err;
46}
47
48struct test_def {
49	const char *file;
50	const char *err_str;
51};
52
53void test_test_global_funcs(void)
54{
55	struct test_def tests[] = {
56		{ "test_global_func1.o", "combined stack size of 4 calls is 544" },
57		{ "test_global_func2.o" },
58		{ "test_global_func3.o" , "the call stack of 8 frames" },
59		{ "test_global_func4.o" },
60		{ "test_global_func5.o" , "expected pointer to ctx, but got PTR" },
61		{ "test_global_func6.o" , "modified ctx ptr R2" },
62		{ "test_global_func7.o" , "foo() doesn't return scalar" },
63	};
64	libbpf_print_fn_t old_print_fn = NULL;
65	int err, i, duration = 0;
66
67	old_print_fn = libbpf_set_print(libbpf_debug_print);
68
69	for (i = 0; i < ARRAY_SIZE(tests); i++) {
70		const struct test_def *test = &tests[i];
71
72		if (!test__start_subtest(test->file))
73			continue;
74
75		err_str = test->err_str;
76		err = check_load(test->file);
77		CHECK_FAIL(!!err ^ !!err_str);
78		if (err_str)
79			CHECK(found, "", "expected string '%s'", err_str);
80	}
81	libbpf_set_print(old_print_fn);
82}