1 /* Copyright (c) 2008, Google Inc. 2 * All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 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 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * -- 31 * Author: Craig Silverstein 32 * 33 * C shims for the C++ malloc_hook.h. See malloc_hook.h for details 34 * on how to use these. 35 */ 36 37 #ifndef _MALLOC_HOOK_C_H_ 38 #define _MALLOC_HOOK_C_H_ 39 40 #include <stddef.h> 41 #include <sys/types.h> 42 43 /* Annoying stuff for windows; makes sure clients can import these functions */ 44 #ifndef PERFTOOLS_DLL_DECL 45 # ifdef _WIN32 46 # define PERFTOOLS_DLL_DECL __declspec(dllimport) 47 # else 48 # define PERFTOOLS_DLL_DECL 49 # endif 50 #endif 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 /* Get the current stack trace. Try to skip all routines up to and 57 * and including the caller of MallocHook::Invoke*. 58 * Use "skip_count" (similarly to GetStackTrace from stacktrace.h) 59 * as a hint about how many routines to skip if better information 60 * is not available. 61 */ 62 PERFTOOLS_DLL_DECL 63 int MallocHook_GetCallerStackTrace(void** result, int max_depth, 64 int skip_count); 65 66 /* The MallocHook_{Add,Remove}*Hook functions return 1 on success and 0 on 67 * failure. 68 */ 69 70 typedef void (*MallocHook_NewHook)(const void* ptr, size_t size); 71 PERFTOOLS_DLL_DECL 72 int MallocHook_AddNewHook(MallocHook_NewHook hook); 73 PERFTOOLS_DLL_DECL 74 int MallocHook_RemoveNewHook(MallocHook_NewHook hook); 75 76 typedef void (*MallocHook_DeleteHook)(const void* ptr); 77 PERFTOOLS_DLL_DECL 78 int MallocHook_AddDeleteHook(MallocHook_DeleteHook hook); 79 PERFTOOLS_DLL_DECL 80 int MallocHook_RemoveDeleteHook(MallocHook_DeleteHook hook); 81 82 typedef void (*MallocHook_PreMmapHook)(const void *start, 83 size_t size, 84 int protection, 85 int flags, 86 int fd, 87 off_t offset); 88 PERFTOOLS_DLL_DECL 89 int MallocHook_AddPreMmapHook(MallocHook_PreMmapHook hook); 90 PERFTOOLS_DLL_DECL 91 int MallocHook_RemovePreMmapHook(MallocHook_PreMmapHook hook); 92 93 typedef void (*MallocHook_MmapHook)(const void* result, 94 const void* start, 95 size_t size, 96 int protection, 97 int flags, 98 int fd, 99 off_t offset); 100 PERFTOOLS_DLL_DECL 101 int MallocHook_AddMmapHook(MallocHook_MmapHook hook); 102 PERFTOOLS_DLL_DECL 103 int MallocHook_RemoveMmapHook(MallocHook_MmapHook hook); 104 105 typedef int (*MallocHook_MmapReplacement)(const void* start, 106 size_t size, 107 int protection, 108 int flags, 109 int fd, 110 off_t offset, 111 void** result); 112 int MallocHook_SetMmapReplacement(MallocHook_MmapReplacement hook); 113 int MallocHook_RemoveMmapReplacement(MallocHook_MmapReplacement hook); 114 115 typedef void (*MallocHook_MunmapHook)(const void* ptr, size_t size); 116 PERFTOOLS_DLL_DECL 117 int MallocHook_AddMunmapHook(MallocHook_MunmapHook hook); 118 PERFTOOLS_DLL_DECL 119 int MallocHook_RemoveMunmapHook(MallocHook_MunmapHook hook); 120 121 typedef int (*MallocHook_MunmapReplacement)(const void* ptr, 122 size_t size, 123 int* result); 124 int MallocHook_SetMunmapReplacement(MallocHook_MunmapReplacement hook); 125 int MallocHook_RemoveMunmapReplacement(MallocHook_MunmapReplacement hook); 126 127 typedef void (*MallocHook_MremapHook)(const void* result, 128 const void* old_addr, 129 size_t old_size, 130 size_t new_size, 131 int flags, 132 const void* new_addr); 133 PERFTOOLS_DLL_DECL 134 int MallocHook_AddMremapHook(MallocHook_MremapHook hook); 135 PERFTOOLS_DLL_DECL 136 int MallocHook_RemoveMremapHook(MallocHook_MremapHook hook); 137 138 typedef void (*MallocHook_PreSbrkHook)(ptrdiff_t increment); 139 PERFTOOLS_DLL_DECL 140 int MallocHook_AddPreSbrkHook(MallocHook_PreSbrkHook hook); 141 PERFTOOLS_DLL_DECL 142 int MallocHook_RemovePreSbrkHook(MallocHook_PreSbrkHook hook); 143 144 typedef void (*MallocHook_SbrkHook)(const void* result, ptrdiff_t increment); 145 PERFTOOLS_DLL_DECL 146 int MallocHook_AddSbrkHook(MallocHook_SbrkHook hook); 147 PERFTOOLS_DLL_DECL 148 int MallocHook_RemoveSbrkHook(MallocHook_SbrkHook hook); 149 150 /* The following are DEPRECATED. */ 151 PERFTOOLS_DLL_DECL 152 MallocHook_NewHook MallocHook_SetNewHook(MallocHook_NewHook hook); 153 PERFTOOLS_DLL_DECL 154 MallocHook_DeleteHook MallocHook_SetDeleteHook(MallocHook_DeleteHook hook); 155 PERFTOOLS_DLL_DECL 156 MallocHook_PreMmapHook MallocHook_SetPreMmapHook(MallocHook_PreMmapHook hook); 157 PERFTOOLS_DLL_DECL 158 MallocHook_MmapHook MallocHook_SetMmapHook(MallocHook_MmapHook hook); 159 PERFTOOLS_DLL_DECL 160 MallocHook_MunmapHook MallocHook_SetMunmapHook(MallocHook_MunmapHook hook); 161 PERFTOOLS_DLL_DECL 162 MallocHook_MremapHook MallocHook_SetMremapHook(MallocHook_MremapHook hook); 163 PERFTOOLS_DLL_DECL 164 MallocHook_PreSbrkHook MallocHook_SetPreSbrkHook(MallocHook_PreSbrkHook hook); 165 PERFTOOLS_DLL_DECL 166 MallocHook_SbrkHook MallocHook_SetSbrkHook(MallocHook_SbrkHook hook); 167 /* End of DEPRECATED functions. */ 168 169 #ifdef __cplusplus 170 } // extern "C" 171 #endif 172 173 #endif /* _MALLOC_HOOK_C_H_ */ 174
