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[official-gcc.git] / libsanitizer / asan / asan_stats.h
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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
15 #include "asan_allocator.h"
16 #include "asan_internal.h"
18 namespace __asan {
20 // AsanStats struct is NOT thread-safe.
21 // Each AsanThread has its own AsanStats, which are sometimes flushed
22 // to the accumulated AsanStats.
23 struct 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];
45 uptr malloc_large;
46 uptr malloc_small_slow;
48 // Ctor for global AsanStats (accumulated stats for dead threads).
49 explicit AsanStats(LinkerInitialized) { }
50 // Creates empty stats.
51 AsanStats();
53 void Print(); // Prints formatted stats to stderr.
54 void Clear();
55 void MergeFrom(const AsanStats *stats);
58 // Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
59 // if GetCurrentThread() returns 0.
60 AsanStats &GetCurrentThreadStats();
61 // Flushes a given stats into accumulated stats of dead threads.
62 void FlushToDeadThreadStats(AsanStats *stats);
64 // A cross-platform equivalent of malloc_statistics_t on Mac OS.
65 struct AsanMallocStats {
66 uptr blocks_in_use;
67 uptr size_in_use;
68 uptr max_size_in_use;
69 uptr size_allocated;
72 void FillMallocStatistics(AsanMallocStats *malloc_stats);
74 } // namespace __asan
76 #endif // ASAN_STATS_H