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 20 namespace __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. 25 struct 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. 62 AsanStats &GetCurrentThreadStats(); 63 // Flushes a given stats into accumulated stats of dead threads. 64 void FlushToDeadThreadStats(AsanStats *stats); 65 66 // A cross-platform equivalent of malloc_statistics_t on Mac OS. 67 struct AsanMallocStats { 68 uptr blocks_in_use; 69 uptr size_in_use; 70 uptr max_size_in_use; 71 uptr size_allocated; 72 }; 73 74 void FillMallocStatistics(AsanMallocStats *malloc_stats); 75 76 } // namespace __asan 77 78 #endif // ASAN_STATS_H 79
