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[official-gcc.git] / libsanitizer / asan / asan_stats.h
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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.
11 // ASan-private header for statistics.
12 //===----------------------------------------------------------------------===//
13 #ifndef ASAN_STATS_H
14 #define ASAN_STATS_H
16 #include "asan_allocator.h"
17 #include "asan_internal.h"
19 namespace __asan {
21 // AsanStats struct is NOT thread-safe.
22 // Each AsanThread has its own AsanStats, which are sometimes flushed
23 // to the accumulated AsanStats.
24 struct 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];
43 // Ctor for global AsanStats (accumulated stats for dead threads).
44 explicit AsanStats(LinkerInitialized) { }
45 // Creates empty stats.
46 AsanStats();
48 void Print(); // Prints formatted stats to stderr.
49 void Clear();
50 void MergeFrom(const AsanStats *stats);
53 // Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
54 // if GetCurrentThread() returns 0.
55 AsanStats &GetCurrentThreadStats();
56 // Flushes a given stats into accumulated stats of dead threads.
57 void FlushToDeadThreadStats(AsanStats *stats);
59 // A cross-platform equivalent of malloc_statistics_t on Mac OS.
60 struct AsanMallocStats {
61 uptr blocks_in_use;
62 uptr size_in_use;
63 uptr max_size_in_use;
64 uptr size_allocated;
67 void FillMallocStatistics(AsanMallocStats *malloc_stats);
69 } // namespace __asan
71 #endif // ASAN_STATS_H