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 // Forward declarations. 42 struct Header; 43 class DebugData; 44 struct Config; 45 struct BacktraceHeader; 46 47 class FreeTrackData { 48 public: 49 FreeTrackData(const Config& config); 50 virtual ~FreeTrackData() = default; 51 52 void Add(DebugData& debug, const Header* header); 53 54 void VerifyAll(DebugData& debug); 55 56 void LogBacktrace(const Header* header); 57 58 private: 59 void LogFreeError(DebugData& debug, const Header* header, const uint8_t* pointer); 60 void VerifyAndFree(DebugData& debug, const Header* header, const void* pointer); 61 62 pthread_mutex_t mutex_ = PTHREAD_MUTEX_INITIALIZER; 63 std::deque<const Header*> list_; 64 std::vector<uint8_t> cmp_mem_; 65 std::unordered_map<const Header*, BacktraceHeader*> backtraces_; 66 size_t backtrace_num_frames_; 67 68 DISALLOW_COPY_AND_ASSIGN(FreeTrackData); 69 }; 70 71 #endif // DEBUG_MALLOC_FREETRACKDATA_H 72
