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