VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/alloc.cpp@ 69474

Last change on this file since 69474 was 69111, checked in by vboxsync, 7 years ago

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1/* $Id: alloc.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */
2/** @file
3 * IPRT - Memory Allocation.
4 */
5
6/*
7 * Copyright (C) 2006-2017 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Defined Constants And Macros *
30*********************************************************************************************************************************/
31#if defined(RTMEM_WRAP_TO_EF_APIS) && !defined(RTMEM_NO_WRAP_TO_EF_APIS)
32# undef RTMEM_WRAP_TO_EF_APIS
33# define RTALLOC_USE_EFENCE 1
34#endif
35
36/*#define RTMEMALLOC_USE_TRACKER*/
37/* Don't enable the tracker when building the minimal IPRT. */
38#ifdef RT_MINI
39# undef RTMEMALLOC_USE_TRACKER
40#endif
41
42#if defined(RTMEMALLOC_USE_TRACKER) && defined(RTALLOC_USE_EFENCE)
43# error "Cannot define both RTMEMALLOC_USE_TRACKER and RTALLOC_USE_EFENCE!"
44#endif
45
46
47/*********************************************************************************************************************************
48* Header Files *
49*********************************************************************************************************************************/
50#include "alloc-ef.h"
51#include <iprt/mem.h>
52
53#include <iprt/asm.h>
54#include <iprt/assert.h>
55#ifdef RTMEMALLOC_USE_TRACKER
56# include <iprt/memtracker.h>
57#endif
58#include <iprt/param.h>
59#include <iprt/string.h>
60#include "internal/mem.h"
61
62#include <stdlib.h>
63
64#undef RTMemTmpAlloc
65#undef RTMemTmpAllocTag
66#undef RTMemTmpAllocZ
67#undef RTMemTmpAllocZTag
68#undef RTMemTmpFree
69#undef RTMemAlloc
70#undef RTMemAllocTag
71#undef RTMemAllocZ
72#undef RTMemAllocZTag
73#undef RTMemAllocVar
74#undef RTMemAllocVarTag
75#undef RTMemAllocZVar
76#undef RTMemAllocZVarTag
77#undef RTMemRealloc
78#undef RTMemReallocTag
79#undef RTMemFree
80#undef RTMemDup
81#undef RTMemDupTag
82#undef RTMemDupEx
83#undef RTMemDupExTag
84
85#undef RTALLOC_USE_EFENCE
86
87
88RTDECL(void *) RTMemTmpAllocTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
89{
90 return RTMemAllocTag(cb, pszTag);
91}
92
93
94RTDECL(void *) RTMemTmpAllocZTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
95{
96 return RTMemAllocZTag(cb, pszTag);
97}
98
99
100RTDECL(void) RTMemTmpFree(void *pv) RT_NO_THROW_DEF
101{
102 RTMemFree(pv);
103}
104
105
106RTDECL(void *) RTMemAllocTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
107{
108#ifdef RTALLOC_USE_EFENCE
109 void *pv = rtR3MemAlloc("Alloc", RTMEMTYPE_RTMEMALLOC, cb, cb, pszTag, ASMReturnAddress(), NULL, 0, NULL);
110
111#else /* !RTALLOC_USE_EFENCE */
112
113 AssertMsg(cb, ("Allocating ZERO bytes is really not a good idea! Good luck with the next assertion!\n"));
114# ifdef RTMEMALLOC_USE_TRACKER
115 void *pv = RTMemTrackerHdrAlloc(malloc(cb + sizeof(RTMEMTRACKERHDR)), cb, pszTag, RTMEMTRACKERMETHOD_ALLOC);
116# else
117 void *pv = malloc(cb); NOREF(pszTag);
118# endif
119 AssertMsg(pv, ("malloc(%#zx) failed!!!\n", cb));
120 AssertMsg( cb < RTMEM_ALIGNMENT
121 || !((uintptr_t)pv & (RTMEM_ALIGNMENT - 1))
122 || ( (cb & RTMEM_ALIGNMENT) + ((uintptr_t)pv & RTMEM_ALIGNMENT)) == RTMEM_ALIGNMENT
123 , ("pv=%p RTMEM_ALIGNMENT=%#x\n", pv, RTMEM_ALIGNMENT));
124#endif /* !RTALLOC_USE_EFENCE */
125 return pv;
126}
127
128
129RTDECL(void *) RTMemAllocZTag(size_t cb, const char *pszTag) RT_NO_THROW_DEF
130{
131#ifdef RTALLOC_USE_EFENCE
132 void *pv = rtR3MemAlloc("AllocZ", RTMEMTYPE_RTMEMALLOCZ, cb, cb, pszTag, ASMReturnAddress(), NULL, 0, NULL);
133
134#else /* !RTALLOC_USE_EFENCE */
135
136 AssertMsg(cb, ("Allocating ZERO bytes is really not a good idea! Good luck with the next assertion!\n"));
137
138# ifdef RTMEMALLOC_USE_TRACKER
139 void *pv = RTMemTrackerHdrAlloc(calloc(1, cb + sizeof(RTMEMTRACKERHDR)), cb, pszTag, RTMEMTRACKERMETHOD_ALLOCZ);
140#else
141 void *pv = calloc(1, cb); NOREF(pszTag);
142#endif
143 AssertMsg(pv, ("calloc(1,%#zx) failed!!!\n", cb));
144 AssertMsg( cb < RTMEM_ALIGNMENT
145 || !((uintptr_t)pv & (RTMEM_ALIGNMENT - 1))
146 || ( (cb & RTMEM_ALIGNMENT) + ((uintptr_t)pv & RTMEM_ALIGNMENT)) == RTMEM_ALIGNMENT
147 , ("pv=%p RTMEM_ALIGNMENT=%#x\n", pv, RTMEM_ALIGNMENT));
148#endif /* !RTALLOC_USE_EFENCE */
149 return pv;
150}
151
152
153RTDECL(void *) RTMemAllocVarTag(size_t cbUnaligned, const char *pszTag) RT_NO_THROW_DEF
154{
155 size_t cbAligned;
156 if (cbUnaligned >= 16)
157 cbAligned = RT_ALIGN_Z(cbUnaligned, 16);
158 else
159 cbAligned = RT_ALIGN_Z(cbUnaligned, sizeof(void *));
160#ifdef RTALLOC_USE_EFENCE
161 void *pv = rtR3MemAlloc("AllocVar", RTMEMTYPE_RTMEMALLOC, cbUnaligned, cbAligned, pszTag, ASMReturnAddress(), NULL, 0, NULL);
162#else
163 void *pv = RTMemAllocTag(cbAligned, pszTag);
164#endif
165 return pv;
166}
167
168
169RTDECL(void *) RTMemAllocZVarTag(size_t cbUnaligned, const char *pszTag) RT_NO_THROW_DEF
170{
171 size_t cbAligned;
172 if (cbUnaligned >= 16)
173 cbAligned = RT_ALIGN_Z(cbUnaligned, 16);
174 else
175 cbAligned = RT_ALIGN_Z(cbUnaligned, sizeof(void *));
176#ifdef RTALLOC_USE_EFENCE
177 void *pv = rtR3MemAlloc("AllocZVar", RTMEMTYPE_RTMEMALLOCZ, cbUnaligned, cbAligned, pszTag, ASMReturnAddress(), NULL, 0, NULL);
178#else
179 void *pv = RTMemAllocZTag(cbAligned, pszTag);
180#endif
181 return pv;
182}
183
184
185RTDECL(void *) RTMemReallocTag(void *pvOld, size_t cbNew, const char *pszTag) RT_NO_THROW_DEF
186{
187#ifdef RTALLOC_USE_EFENCE
188 void *pv = rtR3MemRealloc("Realloc", RTMEMTYPE_RTMEMREALLOC, pvOld, cbNew, pszTag, ASMReturnAddress(), NULL, 0, NULL);
189
190#else /* !RTALLOC_USE_EFENCE */
191
192# ifdef RTMEMALLOC_USE_TRACKER
193 void *pvRealOld = RTMemTrackerHdrReallocPrep(pvOld, 0, pszTag);
194 size_t cbRealNew = cbNew || !pvRealOld ? cbNew + sizeof(RTMEMTRACKERHDR) : 0;
195 void *pvNew = realloc(pvRealOld, cbRealNew);
196 void *pv = RTMemTrackerHdrReallocDone(pvNew, cbNew, pvOld, pszTag);
197# else
198 void *pv = realloc(pvOld, cbNew); NOREF(pszTag);
199# endif
200 AssertMsg(pv || !cbNew, ("realloc(%p, %#zx) failed!!!\n", pvOld, cbNew));
201 AssertMsg( cbNew < RTMEM_ALIGNMENT
202 || !((uintptr_t)pv & (RTMEM_ALIGNMENT - 1))
203 || ( (cbNew & RTMEM_ALIGNMENT) + ((uintptr_t)pv & RTMEM_ALIGNMENT)) == RTMEM_ALIGNMENT
204 , ("pv=%p RTMEM_ALIGNMENT=%#x\n", pv, RTMEM_ALIGNMENT));
205#endif /* !RTALLOC_USE_EFENCE */
206 return pv;
207}
208
209
210RTDECL(void) RTMemFree(void *pv) RT_NO_THROW_DEF
211{
212 if (pv)
213#ifdef RTALLOC_USE_EFENCE
214 rtR3MemFree("Free", RTMEMTYPE_RTMEMFREE, pv, ASMReturnAddress(), NULL, 0, NULL);
215#else
216# ifdef RTMEMALLOC_USE_TRACKER
217 pv = RTMemTrackerHdrFree(pv, 0, NULL, RTMEMTRACKERMETHOD_FREE);
218# endif
219 free(pv);
220#endif
221}
222
223
224
225DECLHIDDEN(void *) rtMemBaseAlloc(size_t cb)
226{
227 Assert(cb > 0 && cb < _1M);
228 return malloc(cb);
229}
230
231
232DECLHIDDEN(void) rtMemBaseFree(void *pv)
233{
234 free(pv);
235}
236
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