1#include <stdint.h>
2#include <stdio.h>
3#include <stdlib.h>
4
5int __llvm_profile_runtime = 0;
6uint64_t __llvm_profile_get_size_for_buffer(void);
7int __llvm_profile_write_buffer(char *);
8void __llvm_profile_reset_counters(void);
9int __llvm_profile_check_compatibility(const char *, uint64_t);
10
11int gg = 0;
12void bar(char c) {
13  if (c == '1')
14    gg++;
15  else
16    gg--;
17}
18
19/* Returns 0 (size) when an error occurs. */
20uint64_t libEntry(char *Buffer, uint64_t MaxSize) {
21
22  uint64_t Size = __llvm_profile_get_size_for_buffer();
23  if (Size > MaxSize)
24    return 0;
25
26  __llvm_profile_reset_counters();
27
28  bar('1');
29
30  if (__llvm_profile_write_buffer(Buffer))
31    return 0;
32
33  /* Now check compatibility. Should return 0.  */
34  if (__llvm_profile_check_compatibility(Buffer, Size))
35    return 0;
36
37  return Size;
38}
39
40