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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) 2021 Facebook */
   3
   4 #include "test_progs.h"
   5 #include "core_kern.lskel.h"
   6
   7 void test_core_kern_lskel(void)
   8 {
   9         struct core_kern_lskel *skel;
  10         int link_fd;
  11
  12         skel = core_kern_lskel__open_and_load();
  13         if (!ASSERT_OK_PTR(skel, "open_and_load"))
  14                 return;
  15
  16         link_fd = core_kern_lskel__core_relo_proto__attach(skel);
  17         if (!ASSERT_GT(link_fd, 0, "attach(core_relo_proto)"))
  18                 goto cleanup;
  19
  20         /* trigger tracepoints */
  21         usleep(1);
  22         ASSERT_TRUE(skel->bss->proto_out[0], "bpf_core_type_exists");
  23         ASSERT_FALSE(skel->bss->proto_out[1], "!bpf_core_type_exists");
  24         ASSERT_TRUE(skel->bss->proto_out[2], "bpf_core_type_exists. nested");
  25
  26 cleanup:
  27         core_kern_lskel__destroy(skel);
  28 }