// SPDX-License-Identifier: GPL-2.0 #include <test_progs.h> #include "test_stack_var_off.skel.h" /* Test read and writes to the stack performed with offsets that are not * statically known. */ void test_stack_var_off(void) { int duration = 0; struct test_stack_var_off *skel; skel = test_stack_var_off__open_and_load(); if (CHECK(!skel, "skel_open", "failed to open skeleton\n")) return; /* Give pid to bpf prog so it doesn't trigger for anyone else. */ skel->bss->test_pid = getpid(); /* Initialize the probe's input. */ skel->bss->input[0] = 2; skel->bss->input[1] = 42; /* This will be returned in probe_res. */ if (!ASSERT_OK(test_stack_var_off__attach(skel), "skel_attach")) goto cleanup; /* Trigger probe. */ usleep(1); if (CHECK(skel->bss->probe_res != 42, "check_probe_res", "wrong probe res: %d\n", skel->bss->probe_res)) goto cleanup; cleanup: test_stack_var_off__destroy(skel); }