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1// SPDX-License-Identifier: GPL-2.02#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 not6 * statically known.7 */8void 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 33cleanup:34 test_stack_var_off__destroy(skel);35}36