stack_var_off.c (925B)
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 */ 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}