1//===-- asan_stats.h --------------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file is a part of AddressSanitizer, an address sanity checker.
10//
11// ASan-private header for statistics.
12//===----------------------------------------------------------------------===//
13#ifndef ASAN_STATS_H
14#define ASAN_STATS_H
15
16#include "asan_allocator.h"
17#include "asan_internal.h"
18
19namespace __asan {
20
21// AsanStats struct is NOT thread-safe.
22// Each AsanThread has its own AsanStats, which are sometimes flushed
23// to the accumulated AsanStats.
24struct AsanStats {
25 // AsanStats must be a struct consisting of uptr fields only.
26 // When merging two AsanStats structs, we treat them as arrays of uptr.
27 uptr mallocs;
28 uptr malloced;
29 uptr malloced_redzones;
30 uptr frees;
31 uptr freed;
32 uptr real_frees;
33 uptr really_freed;
34 uptr reallocs;
35 uptr realloced;
36 uptr mmaps;
37 uptr mmaped;
38 uptr munmaps;
39 uptr munmaped;
40 uptr malloc_large;
41 uptr malloced_by_size[kNumberOfSizeClasses];
42
43 // Ctor for global AsanStats (accumulated stats for dead threads).
44 explicit AsanStats(LinkerInitialized) { }
45 // Creates empty stats.
46 AsanStats();
47
48 void Print(); // Prints formatted stats to stderr.
49 void Clear();
50 void MergeFrom(const AsanStats *stats);
51};
52
53// Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
54// if GetCurrentThread() returns 0.
55AsanStats &GetCurrentThreadStats();
56// Flushes a given stats into accumulated stats of dead threads.
57void FlushToDeadThreadStats(AsanStats *stats);
58
59// A cross-platform equivalent of malloc_statistics_t on Mac OS.
60struct AsanMallocStats {
61 uptr blocks_in_use;
62 uptr size_in_use;
63 uptr max_size_in_use;
64 uptr size_allocated;
65};
66
67void FillMallocStatistics(AsanMallocStats *malloc_stats);
68
69} // namespace __asan
70
71#endif // ASAN_STATS_H
72