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//===-- asan_stats.h --------------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// This file is a part of AddressSanitizer, an address sanity checker.
// ASan-private header for statistics.
#ifndef ASAN_STATS_H
#define ASAN_STATS_H
#include "asan_allocator.h"
#include "asan_internal.h"
namespace __asan {
// AsanStats struct is NOT thread-safe.
// Each AsanThread has its own AsanStats, which are sometimes flushed
// to the accumulated AsanStats.
struct AsanStats {
// AsanStats must be a struct consisting of uptr fields only.
// When merging two AsanStats structs, we treat them as arrays of uptr.
uptr mallocs;
uptr malloced;
uptr malloced_redzones;
uptr frees;
uptr freed;
uptr real_frees;
uptr really_freed;
uptr reallocs;
uptr realloced;
uptr mmaps;
uptr mmaped;
uptr munmaps;
uptr munmaped;
uptr malloc_large;
uptr malloced_by_size[kNumberOfSizeClasses];
// Ctor for global AsanStats (accumulated stats for dead threads).
explicit AsanStats(LinkerInitialized) { }
// Creates empty stats.
void Print(); // Prints formatted stats to stderr.
void Clear();
void MergeFrom(const AsanStats *stats);
// Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
// if GetCurrentThread() returns 0.
AsanStats &GetCurrentThreadStats();
// Flushes a given stats into accumulated stats of dead threads.
void FlushToDeadThreadStats(AsanStats *stats);
// A cross-platform equivalent of malloc_statistics_t on Mac OS.
struct AsanMallocStats {
uptr blocks_in_use;
uptr size_in_use;
uptr max_size_in_use;
uptr size_allocated;
void FillMallocStatistics(AsanMallocStats *malloc_stats);
} // namespace __asan
#endif // ASAN_STATS_H