1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
/* $Id: alloc.cpp $ */
/** @file
* IPRT - Memory Allocation.
*/
/*
* Copyright (C) 2006-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Defined Constants And Macros *
*********************************************************************************************************************************/
#if defined(RTMEM_WRAP_TO_EF_APIS) && !defined(RTMEM_NO_WRAP_TO_EF_APIS)
# undef RTMEM_WRAP_TO_EF_APIS
# define RTALLOC_USE_EFENCE 1
#endif
/*#define RTMEMALLOC_USE_TRACKER*/
/* Don't enable the tracker when building the minimal IPRT. */
#ifdef RT_MINI
# undef RTMEMALLOC_USE_TRACKER
#endif
#if defined(RTMEMALLOC_USE_TRACKER) && defined(RTALLOC_USE_EFENCE)
# error "Cannot define both RTMEMALLOC_USE_TRACKER and RTALLOC_USE_EFENCE!"
#endif
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "alloc-ef.h"
#include <iprt/mem.h>
#include <iprt/asm.h>
#include <iprt/assert.h>
#ifdef RTMEMALLOC_USE_TRACKER
# include <iprt/memtracker.h>
#endif
#include <iprt/param.h>
#include <iprt/string.h>
#include "internal/mem.h"
#include <stdlib.h>
#undef RTMemTmpAlloc
#undef RTMemTmpAllocTag
#undef RTMemTmpAllocZ
#undef RTMemTmpAllocZTag
#undef RTMemTmpFree
#undef RTMemAlloc
#undef RTMemAllocTag
#undef RTMemAllocZ
#undef RTMemAllocZTag
#undef RTMemAllocVar
#undef RTMemAllocVarTag
#undef RTMemAllocZVar
#undef RTMemAllocZVarTag
#undef RTMemRealloc
#undef RTMemReallocTag
#undef RTMemFree
#undef RTMemDup
#undef RTMemDupTag
#undef RTMemDupEx
#undef RTMemDupExTag
#undef RTALLOC_USE_EFENCE
#ifdef IPRT_WITH_GCC_SANITIZER
/**
* Checks if @a pszTag is a leak tag.
*
* @returns true if leak tag, false if not.
* @param pszTag Tage to inspect.
*/
DECLINLINE(bool) rtMemIsLeakTag(const char *pszTag)
{
char ch = *pszTag;
if (ch != 'w')
{ /* likely */ }
else
return pszTag[1] == 'i'
&& pszTag[2] == 'l'
&& pszTag[3] == 'l'
&& pszTag[4] == '-'
&& pszTag[5] == 'l'
&& pszTag[6] == 'e'
&& pszTag[7] == 'a'
&& pszTag[8] == 'k';
if (ch != 'm')
return false;
return pszTag[1] == 'm'
&& pszTag[2] == 'a'
&& pszTag[3] == 'y'
&& pszTag[4] == '-'
&& pszTag[5] == 'l'
&& pszTag[6] == 'e'
&& pszTag[7] == 'a'
&& pszTag[8] == 'k';
}
#endif /* IPRT_WITH_GCC_SANITIZER */
RTDECL(void *) RTMemTmpAllocTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
{
return RTMemAllocTag(cb, pszTag);
}
RTDECL(void *) RTMemTmpAllocZTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
{
return RTMemAllocZTag(cb, pszTag);
}
RTDECL(void) RTMemTmpFree(void *pv) RT_NO_THROW_DEF
{
RTMemFree(pv);
}
RTDECL(void *) RTMemAllocTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
{
#ifdef RTALLOC_USE_EFENCE
void *pv = rtR3MemAlloc("Alloc", RTMEMTYPE_RTMEMALLOC, cb, cb, pszTag, ASMReturnAddress(), NULL, 0, NULL);
#else /* !RTALLOC_USE_EFENCE */
AssertMsg(cb, ("Allocating ZERO bytes is really not a good idea! Good luck with the next assertion!\n"));
# ifdef RTMEMALLOC_USE_TRACKER
void *pv = RTMemTrackerHdrAlloc(malloc(cb + sizeof(RTMEMTRACKERHDR)), cb, pszTag, ASMReturnAddress(), RTMEMTRACKERMETHOD_ALLOC);
# else
void *pv = malloc(cb); NOREF(pszTag);
# endif
AssertMsg(pv, ("malloc(%#zx) failed!!!\n", cb));
AssertMsg( cb < RTMEM_ALIGNMENT
|| !((uintptr_t)pv & (RTMEM_ALIGNMENT - 1))
|| ( (cb & RTMEM_ALIGNMENT) + ((uintptr_t)pv & RTMEM_ALIGNMENT)) == RTMEM_ALIGNMENT
, ("pv=%p RTMEM_ALIGNMENT=%#x\n", pv, RTMEM_ALIGNMENT));
#endif /* !RTALLOC_USE_EFENCE */
#ifdef IPRT_WITH_GCC_SANITIZER
if (rtMemIsLeakTag(pszTag))
__lsan_ignore_object(pv);
#endif
return pv;
}
RTDECL(void *) RTMemAllocZTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
{
#ifdef RTALLOC_USE_EFENCE
void *pv = rtR3MemAlloc("AllocZ", RTMEMTYPE_RTMEMALLOCZ, cb, cb, pszTag, ASMReturnAddress(), NULL, 0, NULL);
#else /* !RTALLOC_USE_EFENCE */
AssertMsg(cb, ("Allocating ZERO bytes is really not a good idea! Good luck with the next assertion!\n"));
# ifdef RTMEMALLOC_USE_TRACKER
void *pv = RTMemTrackerHdrAlloc(calloc(1, cb + sizeof(RTMEMTRACKERHDR)), cb, pszTag, ASMReturnAddress(), RTMEMTRACKERMETHOD_ALLOCZ);
#else
void *pv = calloc(1, cb); NOREF(pszTag);
#endif
AssertMsg(pv, ("calloc(1,%#zx) failed!!!\n", cb));
AssertMsg( cb < RTMEM_ALIGNMENT
|| !((uintptr_t)pv & (RTMEM_ALIGNMENT - 1))
|| ( (cb & RTMEM_ALIGNMENT) + ((uintptr_t)pv & RTMEM_ALIGNMENT)) == RTMEM_ALIGNMENT
, ("pv=%p RTMEM_ALIGNMENT=%#x\n", pv, RTMEM_ALIGNMENT));
#endif /* !RTALLOC_USE_EFENCE */
#ifdef IPRT_WITH_GCC_SANITIZER
if (rtMemIsLeakTag(pszTag))
__lsan_ignore_object(pv);
#endif
return pv;
}
RTDECL(void *) RTMemAllocVarTag(size_t cbUnaligned, const char *pszTag) RT_NO_THROW_DEF
{
size_t cbAligned;
if (cbUnaligned >= 16)
cbAligned = RT_ALIGN_Z(cbUnaligned, 16);
else
cbAligned = RT_ALIGN_Z(cbUnaligned, sizeof(void *));
#ifdef RTALLOC_USE_EFENCE
void *pv = rtR3MemAlloc("AllocVar", RTMEMTYPE_RTMEMALLOC, cbUnaligned, cbAligned, pszTag, ASMReturnAddress(), NULL, 0, NULL);
#else
void *pv = RTMemAllocTag(cbAligned, pszTag);
#endif
return pv;
}
RTDECL(void *) RTMemAllocZVarTag(size_t cbUnaligned, const char *pszTag) RT_NO_THROW_DEF
{
size_t cbAligned;
if (cbUnaligned >= 16)
cbAligned = RT_ALIGN_Z(cbUnaligned, 16);
else
cbAligned = RT_ALIGN_Z(cbUnaligned, sizeof(void *));
#ifdef RTALLOC_USE_EFENCE
void *pv = rtR3MemAlloc("AllocZVar", RTMEMTYPE_RTMEMALLOCZ, cbUnaligned, cbAligned, pszTag, ASMReturnAddress(), NULL, 0, NULL);
#else
void *pv = RTMemAllocZTag(cbAligned, pszTag);
#endif
return pv;
}
RTDECL(void *) RTMemReallocTag(void *pvOld, size_t cbNew, const char *pszTag) RT_NO_THROW_DEF
{
#ifdef RTALLOC_USE_EFENCE
void *pv = rtR3MemRealloc("Realloc", RTMEMTYPE_RTMEMREALLOC, pvOld, cbNew, pszTag, ASMReturnAddress(), NULL, 0, NULL);
#else /* !RTALLOC_USE_EFENCE */
# ifdef RTMEMALLOC_USE_TRACKER
void *pvRealOld = RTMemTrackerHdrReallocPrep(pvOld, 0, pszTag, ASMReturnAddress());
size_t cbRealNew = cbNew || !pvRealOld ? cbNew + sizeof(RTMEMTRACKERHDR) : 0;
void *pvNew = realloc(pvRealOld, cbRealNew);
void *pv = RTMemTrackerHdrReallocDone(pvNew, cbNew, pvOld, pszTag, ASMReturnAddress());
# else
void *pv = realloc(pvOld, cbNew); NOREF(pszTag);
# endif
AssertMsg(pv || !cbNew, ("realloc(%p, %#zx) failed!!!\n", pvOld, cbNew));
AssertMsg( cbNew < RTMEM_ALIGNMENT
|| !((uintptr_t)pv & (RTMEM_ALIGNMENT - 1))
|| ( (cbNew & RTMEM_ALIGNMENT) + ((uintptr_t)pv & RTMEM_ALIGNMENT)) == RTMEM_ALIGNMENT
, ("pv=%p RTMEM_ALIGNMENT=%#x\n", pv, RTMEM_ALIGNMENT));
#endif /* !RTALLOC_USE_EFENCE */
return pv;
}
RTDECL(void) RTMemFree(void *pv) RT_NO_THROW_DEF
{
if (pv)
#ifdef RTALLOC_USE_EFENCE
rtR3MemFree("Free", RTMEMTYPE_RTMEMFREE, pv, ASMReturnAddress(), NULL, 0, NULL);
#else
# ifdef RTMEMALLOC_USE_TRACKER
pv = RTMemTrackerHdrFree(pv, 0, NULL, ASMReturnAddress(), RTMEMTRACKERMETHOD_FREE);
# endif
free(pv);
#endif
}
DECLHIDDEN(void *) rtMemBaseAlloc(size_t cb)
{
Assert(cb > 0 && cb < _1M);
return malloc(cb);
}
DECLHIDDEN(void) rtMemBaseFree(void *pv)
{
free(pv);
}
|
