bpf/prog_tests/vmlinux.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /* Copyright (c) 2020 Facebook */
0003
0004 #include <test_progs.h>
0005 #include <time.h>
0006 #include "test_vmlinux.skel.h"
0007
0008 #define MY_TV_NSEC 1337
0009
0010 static void nsleep()
0011 {
0012     struct timespec ts = { .tv_nsec = MY_TV_NSEC };
0013
0014     (void)syscall(__NR_nanosleep, &ts, NULL);
0015 }
0016
0017 void test_vmlinux(void)
0018 {
0019     int duration = 0, err;
0020     struct test_vmlinux* skel;
0021     struct test_vmlinux__bss *bss;
0022
0023     skel = test_vmlinux__open_and_load();
0024     if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
0025         return;
0026     bss = skel->bss;
0027
0028     err = test_vmlinux__attach(skel);
0029     if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
0030         goto cleanup;
0031
0032     /* trigger everything */
0033     nsleep();
0034
0035     CHECK(!bss->tp_called, "tp", "not called\n");
0036     CHECK(!bss->raw_tp_called, "raw_tp", "not called\n");
0037     CHECK(!bss->tp_btf_called, "tp_btf", "not called\n");
0038     CHECK(!bss->kprobe_called, "kprobe", "not called\n");
0039     CHECK(!bss->fentry_called, "fentry", "not called\n");
0040
0041 cleanup:
0042     test_vmlinux__destroy(skel);
0043 }