1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) Meta Platforms, Inc. and affiliates. */
3
4 #include <test_progs.h>
5 #include "test_subskeleton.skel.h"
6 #include "test_subskeleton_lib.subskel.h"
7
subskeleton_lib_setup(struct bpf_object * obj)8 static void subskeleton_lib_setup(struct bpf_object *obj)
9 {
10 struct test_subskeleton_lib *lib = test_subskeleton_lib__open(obj);
11
12 if (!ASSERT_OK_PTR(lib, "open subskeleton"))
13 return;
14
15 *lib->rodata.var1 = 1;
16 *lib->data.var2 = 2;
17 lib->bss.var3->var3_1 = 3;
18 lib->bss.var3->var3_2 = 4;
19
20 test_subskeleton_lib__destroy(lib);
21 }
22
subskeleton_lib_subresult(struct bpf_object * obj)23 static int subskeleton_lib_subresult(struct bpf_object *obj)
24 {
25 struct test_subskeleton_lib *lib = test_subskeleton_lib__open(obj);
26 int result;
27
28 if (!ASSERT_OK_PTR(lib, "open subskeleton"))
29 return -EINVAL;
30
31 result = *lib->bss.libout1;
32 ASSERT_EQ(result, 1 + 2 + 3 + 4 + 5 + 6, "lib subresult");
33
34 ASSERT_OK_PTR(lib->progs.lib_perf_handler, "lib_perf_handler");
35 ASSERT_STREQ(bpf_program__name(lib->progs.lib_perf_handler),
36 "lib_perf_handler", "program name");
37
38 ASSERT_OK_PTR(lib->maps.map1, "map1");
39 ASSERT_STREQ(bpf_map__name(lib->maps.map1), "map1", "map name");
40
41 ASSERT_EQ(*lib->data.var5, 5, "__weak var5");
42 ASSERT_EQ(*lib->data.var6, 6, "extern var6");
43 ASSERT_TRUE(*lib->kconfig.CONFIG_BPF_SYSCALL, "CONFIG_BPF_SYSCALL");
44
45 test_subskeleton_lib__destroy(lib);
46 return result;
47 }
48
test_subskeleton(void)49 void test_subskeleton(void)
50 {
51 int err, result;
52 struct test_subskeleton *skel;
53
54 skel = test_subskeleton__open();
55 if (!ASSERT_OK_PTR(skel, "skel_open"))
56 return;
57
58 skel->rodata->rovar1 = 10;
59 skel->rodata->var1 = 1;
60 subskeleton_lib_setup(skel->obj);
61
62 err = test_subskeleton__load(skel);
63 if (!ASSERT_OK(err, "skel_load"))
64 goto cleanup;
65
66 err = test_subskeleton__attach(skel);
67 if (!ASSERT_OK(err, "skel_attach"))
68 goto cleanup;
69
70 /* trigger tracepoint */
71 usleep(1);
72
73 result = subskeleton_lib_subresult(skel->obj) * 10;
74 ASSERT_EQ(skel->bss->out1, result, "unexpected calculation");
75
76 cleanup:
77 test_subskeleton__destroy(skel);
78 }
79