text: // SPDX-License-Identifier: GPL-2.0
  // Copyright (c) 2019 Facebook
  #include <test_progs.h>
  static int libbpf_debug_print(enum libbpf_print_level level,
  			      const char *format, va_list args)
  {
  	if (level != LIBBPF_DEBUG)
  		return 0;
  
  	if (!strstr(format, "verifier log"))
  		return 0;
  	return vfprintf(stderr, "%s", args);
  }
  
  static int check_load(const char *file)
  {
  	struct bpf_prog_load_attr attr;
  	struct bpf_object *obj = NULL;
  	int err, prog_fd;
  
  	memset(&attr, 0, sizeof(struct bpf_prog_load_attr));
  	attr.file = file;
  	attr.prog_type = BPF_PROG_TYPE_SCHED_CLS;
  	attr.log_level = 4;
  	err = bpf_prog_load_xattr(&attr, &obj, &prog_fd);
  	bpf_object__close(obj);
  	if (err)
  		error_cnt++;
  	return err;
  }
  
  void test_bpf_verif_scale(void)
  {
  	const char *file1 = "./test_verif_scale1.o";
  	const char *file2 = "./test_verif_scale2.o";
  	const char *file3 = "./test_verif_scale3.o";
  	int err;
  
  	if (verifier_stats)
  		libbpf_set_print(libbpf_debug_print);
  
  	err = check_load(file1);
  	err |= check_load(file2);
  	err |= check_load(file3);
  	if (!err)
  		printf("test_verif_scale:OK\n");
  	else
  		printf("test_verif_scale:FAIL\n");
  }
  