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

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <test_progs.h>
   3
   4 void test_reference_tracking(void)
   5 {
   6         const char *file = "test_sk_lookup_kern.o";
   7         const char *obj_name = "ref_track";
   8         DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts,
   9                 .object_name = obj_name,
  10                 .relaxed_maps = true,
  11         );
  12         struct bpf_object *obj;
  13         struct bpf_program *prog;
  14         __u32 duration = 0;
  15         int err = 0;
  16
  17         obj = bpf_object__open_file(file, &open_opts);
  18         if (CHECK_FAIL(IS_ERR(obj)))
  19                 return;
  20
  21         if (CHECK(strcmp(bpf_object__name(obj), obj_name), "obj_name",
  22                   "wrong obj name '%s', expected '%s'\n",
  23                   bpf_object__name(obj), obj_name))
  24                 goto cleanup;
  25
  26         bpf_object__for_each_program(prog, obj) {
  27                 const char *title;
  28
  29                 /* Ignore .text sections */
  30                 title = bpf_program__section_name(prog);
  31                 if (strstr(title, ".text") != NULL)
  32                         continue;
  33
  34                 if (!test__start_subtest(title))
  35                         continue;
  36
  37                 /* Expect verifier failure if test name has 'fail' */
  38                 if (strstr(title, "fail") != NULL) {
  39                         libbpf_print_fn_t old_print_fn;
  40
  41                         old_print_fn = libbpf_set_print(NULL);
  42                         err = !bpf_program__load(prog, "GPL", 0);
  43                         libbpf_set_print(old_print_fn);
  44                 } else {
  45                         err = bpf_program__load(prog, "GPL", 0);
  46                 }
  47                 CHECK(err, title, "\n");
  48         }
  49
  50 cleanup:
  51         bpf_object__close(obj);
  52 }