1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef DEBUG_MALLOC_FREETRACKDATA_H 30 #define DEBUG_MALLOC_FREETRACKDATA_H 31 32 #include <stdint.h> 33 #include <pthread.h> 34 35 #include <deque> 36 #include <unordered_map> 37 #include <vector> 38 39 #include <private/bionic_macros.h> 40 41 #include "OptionData.h" 42 43 // Forward declarations. 44 struct BacktraceHeader; 45 struct Config; 46 class DebugData; 47 struct Header; 48 49 class FreeTrackData : public OptionData { 50 public: 51 FreeTrackData(DebugData* debug_data, const Config& config); 52 virtual ~FreeTrackData() = default; 53 54 void Add(const Header* header); 55 56 void VerifyAll(); 57 58 void LogBacktrace(const Header* header); 59 60 private: 61 void LogFreeError(const Header* header, const uint8_t* pointer); 62 void VerifyAndFree(const Header* header); 63 64 pthread_mutex_t mutex_ = PTHREAD_MUTEX_INITIALIZER; 65 std::deque<const Header*> list_; 66 std::vector<uint8_t> cmp_mem_; 67 std::unordered_map<const Header*, BacktraceHeader*> backtraces_; 68 size_t backtrace_num_frames_; 69 70 DISALLOW_COPY_AND_ASSIGN(FreeTrackData); 71 }; 72 73 #endif // DEBUG_MALLOC_FREETRACKDATA_H 74