selftests/bpf: Remove explicit setrlimit(RLIMIT_MEMLOCK) in main selftests
[linux.git] / tools / testing / selftests / bpf / prog_tests / linked_funcs.c
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2021 Facebook */
3
4 #include <test_progs.h>
5 #include <sys/syscall.h>
6 #include "linked_funcs.skel.h"
7
8 void test_linked_funcs(void)
9 {
10         int err;
11         struct linked_funcs *skel;
12
13         skel = linked_funcs__open();
14         if (!ASSERT_OK_PTR(skel, "skel_open"))
15                 return;
16
17         skel->rodata->my_tid = syscall(SYS_gettid);
18         skel->bss->syscall_id = SYS_getpgid;
19
20         err = linked_funcs__load(skel);
21         if (!ASSERT_OK(err, "skel_load"))
22                 goto cleanup;
23
24         err = linked_funcs__attach(skel);
25         if (!ASSERT_OK(err, "skel_attach"))
26                 goto cleanup;
27
28         /* trigger */
29         syscall(SYS_getpgid);
30
31         ASSERT_EQ(skel->bss->output_val1, 2000 + 2000, "output_val1");
32         ASSERT_EQ(skel->bss->output_ctx1, SYS_getpgid, "output_ctx1");
33         ASSERT_EQ(skel->bss->output_weak1, 42, "output_weak1");
34
35         ASSERT_EQ(skel->bss->output_val2, 2 * 1000 + 2 * (2 * 1000), "output_val2");
36         ASSERT_EQ(skel->bss->output_ctx2, SYS_getpgid, "output_ctx2");
37         /* output_weak2 should never be updated */
38         ASSERT_EQ(skel->bss->output_weak2, 0, "output_weak2");
39
40 cleanup:
41         linked_funcs__destroy(skel);
42 }
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