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