tools/testing/selftests/bpf/prog_tests/vmlinux.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) 2020 Facebook */
   3
   4 #include <test_progs.h>
   5 #include <time.h>
   6 #include "test_vmlinux.skel.h"
   7
   8 #define MY_TV_NSEC 1337
   9
  10 static void nsleep()
  11 {
  12         struct timespec ts = { .tv_nsec = MY_TV_NSEC };
  13
  14         (void)syscall(__NR_nanosleep, &ts, NULL);
  15 }
  16
  17 void test_vmlinux(void)
  18 {
  19         int duration = 0, err;
  20         struct test_vmlinux* skel;
  21         struct test_vmlinux__bss *bss;
  22
  23         skel = test_vmlinux__open_and_load();
  24         if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
  25                 return;
  26         bss = skel->bss;
  27
  28         err = test_vmlinux__attach(skel);
  29         if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
  30                 goto cleanup;
  31
  32         /* trigger everything */
  33         nsleep();
  34
  35         CHECK(!bss->tp_called, "tp", "not called\n");
  36         CHECK(!bss->raw_tp_called, "raw_tp", "not called\n");
  37         CHECK(!bss->tp_btf_called, "tp_btf", "not called\n");
  38         CHECK(!bss->kprobe_called, "kprobe", "not called\n");
  39         CHECK(!bss->fentry_called, "fentry", "not called\n");
  40
  41 cleanup:
  42         test_vmlinux__destroy(skel);
  43 }