1//===-- asan_stats.h --------------------------------------------*- C++ -*-===//
2//
3// This file is distributed under the University of Illinois Open Source
4// License. See LICENSE.TXT for details.
5//
6//===----------------------------------------------------------------------===//
7//
8// This file is a part of AddressSanitizer, an address sanity checker.
9//
10// ASan-private header for statistics.
11//===----------------------------------------------------------------------===//
12#ifndef ASAN_STATS_H
13#define ASAN_STATS_H
14
15#include "asan_allocator.h"
16#include "asan_internal.h"
17
18namespace __asan {
19
20// AsanStats struct is NOT thread-safe.
21// Each AsanThread has its own AsanStats, which are sometimes flushed
22// to the accumulated AsanStats.
23struct AsanStats {
24  // AsanStats must be a struct consisting of uptr fields only.
25  // When merging two AsanStats structs, we treat them as arrays of uptr.
26  uptr mallocs;
27  uptr malloced;
28  uptr malloced_redzones;
29  uptr frees;
30  uptr freed;
31  uptr real_frees;
32  uptr really_freed;
33  uptr really_freed_redzones;
34  uptr reallocs;
35  uptr realloced;
36  uptr mmaps;
37  uptr mmaped;
38  uptr munmaps;
39  uptr munmaped;
40  uptr mmaped_by_size[kNumberOfSizeClasses];
41  uptr malloced_by_size[kNumberOfSizeClasses];
42  uptr freed_by_size[kNumberOfSizeClasses];
43  uptr really_freed_by_size[kNumberOfSizeClasses];
44
45  uptr malloc_large;
46  uptr malloc_small_slow;
47
48  // Ctor for global AsanStats (accumulated stats for dead threads).
49  explicit AsanStats(LinkerInitialized) { }
50  // Creates empty stats.
51  AsanStats();
52
53  void Print();  // Prints formatted stats to stderr.
54  void Clear();
55  void MergeFrom(const AsanStats *stats);
56};
57
58// Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
59// if GetCurrentThread() returns 0.
60AsanStats &GetCurrentThreadStats();
61// Flushes a given stats into accumulated stats of dead threads.
62void FlushToDeadThreadStats(AsanStats *stats);
63
64// A cross-platform equivalent of malloc_statistics_t on Mac OS.
65struct AsanMallocStats {
66  uptr blocks_in_use;
67  uptr size_in_use;
68  uptr max_size_in_use;
69  uptr size_allocated;
70};
71
72void FillMallocStatistics(AsanMallocStats *malloc_stats);
73
74}  // namespace __asan
75
76#endif  // ASAN_STATS_H
77