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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) 2021 Facebook */
   3
   4 #include <test_progs.h>
   5 #include <sys/syscall.h>
   6 #include "linked_maps.skel.h"
   7
   8 void test_linked_maps(void)
   9 {
  10         int err;
  11         struct linked_maps *skel;
  12
  13         skel = linked_maps__open_and_load();
  14         if (!ASSERT_OK_PTR(skel, "skel_open"))
  15                 return;
  16
  17         err = linked_maps__attach(skel);
  18         if (!ASSERT_OK(err, "skel_attach"))
  19                 goto cleanup;
  20
  21         /* trigger */
  22         syscall(SYS_getpgid);
  23
  24         ASSERT_EQ(skel->bss->output_first1, 2000, "output_first1");
  25         ASSERT_EQ(skel->bss->output_second1, 2, "output_second1");
  26         ASSERT_EQ(skel->bss->output_weak1, 2, "output_weak1");
  27
  28 cleanup:
  29         linked_maps__destroy(skel);
  30 }