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 14 15#include "asan_allocator.h" 16#include "asan_internal.h" 17 18namespace __asan { 19 20// AsanStats struct is NOT thread-safe. 21// Each AsanThread has its own AsanStats, which are sometimes flushed 22// to the accumulated AsanStats. 23struct 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]; 44 45 uptr malloc_large; 46 uptr malloc_small_slow; 47 48 // Ctor for global AsanStats (accumulated stats for dead threads). 49 explicit AsanStats(LinkerInitialized) { } 50 // Creates empty stats. 51 AsanStats(); 52 53 void Print(); // Prints formatted stats to stderr. 54 void Clear(); 55 void MergeFrom(const AsanStats *stats); 56}; 57 58// Returns stats for GetCurrentThread(), or stats for fake "unknown thread" 59// if GetCurrentThread() returns 0. 60AsanStats &GetCurrentThreadStats(); 61// Flushes a given stats into accumulated stats of dead threads. 62void FlushToDeadThreadStats(AsanStats *stats); 63 64// A cross-platform equivalent of malloc_statistics_t on Mac OS. 65struct AsanMallocStats { 66 uptr blocks_in_use; 67 uptr size_in_use; 68 uptr max_size_in_use; 69 uptr size_allocated; 70}; 71 72void FillMallocStatistics(AsanMallocStats *malloc_stats); 73 74} // namespace __asan 75 76#endif // ASAN_STATS_H 77