1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3 #include "test_stack_var_off.skel.h"
4
5 /* Test read and writes to the stack performed with offsets that are not
6 * statically known.
7 */
8 void test_stack_var_off(void)
9 {
10 int duration = 0;
11 struct test_stack_var_off *skel;
12
13 skel = test_stack_var_off__open_and_load();
14 if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
15 return;
16
17 /* Give pid to bpf prog so it doesn't trigger for anyone else. */
18 skel->bss->test_pid = getpid();
19 /* Initialize the probe's input. */
20 skel->bss->input[0] = 2;
21 skel->bss->input[1] = 42; /* This will be returned in probe_res. */
22
23 if (!ASSERT_OK(test_stack_var_off__attach(skel), "skel_attach"))
24 goto cleanup;
25
26 /* Trigger probe. */
27 usleep(1);
28
29 if (CHECK(skel->bss->probe_res != 42, "check_probe_res",
30 "wrong probe res: %d\n", skel->bss->probe_res))
31 goto cleanup;
32
33 cleanup:
34 test_stack_var_off__destroy(skel);
35 }
36
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