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 MALLOC_DEBUG_CONFIG_H 30 #define MALLOC_DEBUG_CONFIG_H 31 32 #include <stdint.h> 33 34 #include <string> 35 36 constexpr uint64_t FRONT_GUARD = 0x1; 37 constexpr uint64_t REAR_GUARD = 0x2; 38 constexpr uint64_t BACKTRACE = 0x4; 39 constexpr uint64_t FILL_ON_ALLOC = 0x8; 40 constexpr uint64_t FILL_ON_FREE = 0x10; 41 constexpr uint64_t EXPAND_ALLOC = 0x20; 42 constexpr uint64_t FREE_TRACK = 0x40; 43 constexpr uint64_t TRACK_ALLOCS = 0x80; 44 constexpr uint64_t LEAK_TRACK = 0x100; 45 constexpr uint64_t RECORD_ALLOCS = 0x200; 46 47 // In order to guarantee posix compliance, set the minimum alignment 48 // to 8 bytes for 32 bit systems and 16 bytes for 64 bit systems. 49 #if defined(__LP64__) 50 constexpr size_t MINIMUM_ALIGNMENT_BYTES = 16; 51 #else 52 constexpr size_t MINIMUM_ALIGNMENT_BYTES = 8; 53 #endif 54 55 // If one or more of these options is set, then a special header is needed. 56 constexpr uint64_t HEADER_OPTIONS = FRONT_GUARD | REAR_GUARD | BACKTRACE | FREE_TRACK | LEAK_TRACK; 57 58 struct Config { 59 bool Set(const char* str); 60 61 size_t front_guard_bytes = 0; 62 size_t rear_guard_bytes = 0; 63 64 bool backtrace_enable_on_signal = false; 65 int backtrace_signal = 0; 66 bool backtrace_enabled = false; 67 size_t backtrace_frames = 0; 68 69 size_t fill_on_alloc_bytes = 0; 70 size_t fill_on_free_bytes = 0; 71 72 size_t expand_alloc_bytes = 0; 73 74 size_t free_track_allocations = 0; 75 size_t free_track_backtrace_num_frames = 0; 76 77 int record_allocs_signal = 0; 78 size_t record_allocs_num_entries = 0; 79 std::string record_allocs_file; 80 81 uint64_t options = 0; 82 uint8_t fill_alloc_value; 83 uint8_t fill_free_value; 84 uint8_t front_guard_value; 85 uint8_t rear_guard_value; 86 }; 87 88 #endif // MALLOC_DEBUG_CONFIG_H 89
