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 really_freed_redzones; 36 uptr reallocs; 37 uptr realloced; 38 uptr mmaps; 39 uptr mmaped; 40 uptr munmaps; 41 uptr munmaped; 42 uptr mmaped_by_size[kNumberOfSizeClasses]; 43 uptr malloced_by_size[kNumberOfSizeClasses]; 44 uptr freed_by_size[kNumberOfSizeClasses]; 45 uptr really_freed_by_size[kNumberOfSizeClasses]; 46 47 uptr malloc_large; 48 uptr malloc_small_slow; 49 50 // Ctor for global AsanStats (accumulated stats for dead threads). 51 explicit AsanStats(LinkerInitialized) { } 52 // Creates empty stats. 53 AsanStats(); 54 55 void Print(); // Prints formatted stats to stderr. 56 void Clear(); 57 void MergeFrom(const AsanStats *stats); 58}; 59 60// Returns stats for GetCurrentThread(), or stats for fake "unknown thread" 61// if GetCurrentThread() returns 0. 62AsanStats &GetCurrentThreadStats(); 63// Flushes a given stats into accumulated stats of dead threads. 64void FlushToDeadThreadStats(AsanStats *stats); 65 66// A cross-platform equivalent of malloc_statistics_t on Mac OS. 67struct AsanMallocStats { 68 uptr blocks_in_use; 69 uptr size_in_use; 70 uptr max_size_in_use; 71 uptr size_allocated; 72}; 73 74void FillMallocStatistics(AsanMallocStats *malloc_stats); 75 76} // namespace __asan 77 78#endif // ASAN_STATS_H 79