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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2021 Hengqi Chen */
   3
   4 #include <test_progs.h>
   5 #include "test_prog_array_init.skel.h"
   6
   7 void test_prog_array_init(void)
   8 {
   9         struct test_prog_array_init *skel;
  10         int err;
  11
  12         skel = test_prog_array_init__open();
  13         if (!ASSERT_OK_PTR(skel, "could not open BPF object"))
  14                 return;
  15
  16         skel->rodata->my_pid = getpid();
  17
  18         err = test_prog_array_init__load(skel);
  19         if (!ASSERT_OK(err, "could not load BPF object"))
  20                 goto cleanup;
  21
  22         skel->links.entry = bpf_program__attach_raw_tracepoint(skel->progs.entry, "sys_enter");
  23         if (!ASSERT_OK_PTR(skel->links.entry, "could not attach BPF program"))
  24                 goto cleanup;
  25
  26         usleep(1);
  27
  28         ASSERT_EQ(skel->bss->value, 42, "unexpected value");
  29
  30 cleanup:
  31         test_prog_array_init__destroy(skel);
  32 }