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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) 2019 Facebook */
   3 #include <test_progs.h>
   4 #include "fentry_test.skel.h"
   5
   6 void test_fentry_test(void)
   7 {
   8         struct fentry_test *fentry_skel = NULL;
   9         int err, prog_fd, i;
  10         __u32 duration = 0, retval;
  11         __u64 *result;
  12
  13         fentry_skel = fentry_test__open_and_load();
  14         if (CHECK(!fentry_skel, "fentry_skel_load", "fentry skeleton failed\n"))
  15                 goto cleanup;
  16
  17         err = fentry_test__attach(fentry_skel);
  18         if (CHECK(err, "fentry_attach", "fentry attach failed: %d\n", err))
  19                 goto cleanup;
  20
  21         prog_fd = bpf_program__fd(fentry_skel->progs.test1);
  22         err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
  23                                 NULL, NULL, &retval, &duration);
  24         CHECK(err || retval, "test_run",
  25               "err %d errno %d retval %d duration %d\n",
  26               err, errno, retval, duration);
  27
  28         result = (__u64 *)fentry_skel->bss;
  29         for (i = 0; i < 6; i++) {
  30                 if (CHECK(result[i] != 1, "result",
  31                           "fentry_test%d failed err %lld\n", i + 1, result[i]))
  32                         goto cleanup;
  33         }
  34
  35 cleanup:
  36         fentry_test__destroy(fentry_skel);
  37 }