1//===-- asan_stats.h --------------------------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file is a part of AddressSanitizer, an address sanity checker. 11// 12// ASan-private header for statistics. 13//===----------------------------------------------------------------------===// 14#ifndef ASAN_STATS_H 15#define ASAN_STATS_H 16 17#include "asan_allocator.h" 18#include "asan_internal.h" 19 20namespace __asan { 21 22// AsanStats struct is NOT thread-safe. 23// Each AsanThread has its own AsanStats, which are sometimes flushed 24// to the accumulated AsanStats. 25struct AsanStats { 26 // AsanStats must be a struct consisting of uptr fields only. 27 // When merging two AsanStats structs, we treat them as arrays of uptr. 28 uptr mallocs; 29 uptr malloced; 30 uptr malloced_redzones; 31 uptr frees; 32 uptr freed; 33 uptr real_frees; 34 uptr really_freed; 35 uptr reallocs; 36 uptr realloced; 37 uptr mmaps; 38 uptr mmaped; 39 uptr munmaps; 40 uptr munmaped; 41 uptr malloc_large; 42 uptr malloced_by_size[kNumberOfSizeClasses]; 43 44 // Ctor for global AsanStats (accumulated stats for dead threads). 45 explicit AsanStats(LinkerInitialized) { } 46 // Creates empty stats. 47 AsanStats(); 48 49 void Print(); // Prints formatted stats to stderr. 50 void Clear(); 51 void MergeFrom(const AsanStats *stats); 52}; 53 54// Returns stats for GetCurrentThread(), or stats for fake "unknown thread" 55// if GetCurrentThread() returns 0. 56AsanStats &GetCurrentThreadStats(); 57// Flushes a given stats into accumulated stats of dead threads. 58void FlushToDeadThreadStats(AsanStats *stats); 59 60// A cross-platform equivalent of malloc_statistics_t on Mac OS. 61struct AsanMallocStats { 62 uptr blocks_in_use; 63 uptr size_in_use; 64 uptr max_size_in_use; 65 uptr size_allocated; 66}; 67 68void FillMallocStatistics(AsanMallocStats *malloc_stats); 69 70} // namespace __asan 71 72#endif // ASAN_STATS_H 73