MMHeap.cpp@ 1272

Last change on this file since 1272 was 714, checked in by vboxsync, 18 years ago
small fix
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1	/* $Id: MMHeap.cpp 714 2007-02-06 14:56:17Z vboxsync $ */
2	/** @file
3	* MM - Memory Monitor(/Manager) - Heap.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22
23	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP LOG_GROUP_MM_HEAP
27	#include <VBox/mm.h>
28	#include <VBox/pgm.h>
29	#include "MMInternal.h"
30	#include <VBox/vm.h>
31	#include <VBox/err.h>
32	#include <VBox/param.h>
33	#include <VBox/log.h>
34
35	#include <iprt/alloc.h>
36	#include <iprt/assert.h>
37	#include <iprt/string.h>
38
39
40	/*******************************************************************************
41	* Internal Functions *
42	*******************************************************************************/
43	static void * mmr3HeapAlloc(PMMHEAP pHeap, MMTAG enmTag, size_t cbSize, bool fZero);
44
45
46
47	/**
48	* Allocate and initialize a heap structure and it's associated substructures.
49	*
50	* @returns VBox status.
51	* @param pVM The handle to the VM the heap should be associated with.
52	* @param ppHeap Where to store the heap pointer.
53	*/
54	int mmr3HeapCreate(PVM pVM, PMMHEAP *ppHeap)
55	{
56	PMMHEAP pHeap = (PMMHEAP)RTMemAllocZ(sizeof(MMHEAP) + sizeof(MMHEAPSTAT));
57	if (pHeap)
58	{
59	int rc = RTCritSectInit(&pHeap->Lock);
60	if (VBOX_SUCCESS(rc))
61	{
62	/*
63	* Initialize the global stat record.
64	*/
65	pHeap->pVM = pVM;
66
67	pHeap->Stat.pHeap = pHeap;
68	#ifdef MMR3HEAP_WITH_STATISTICS
69	PMMHEAPSTAT pStat = &pHeap->Stat;
70	STAMR3Register(pVM, &pStat->cAllocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cAllocations", STAMUNIT_CALLS, "Number or MMR3HeapAlloc() calls.");
71	STAMR3Register(pVM, &pStat->cReallocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cReallocations", STAMUNIT_CALLS, "Number of MMR3HeapRealloc() calls.");
72	STAMR3Register(pVM, &pStat->cFrees, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cFrees", STAMUNIT_CALLS, "Number of MMR3HeapFree() calls.");
73	STAMR3Register(pVM, &pStat->cFailures, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cFailures", STAMUNIT_COUNT, "Number of failures.");
74	STAMR3Register(pVM, &pStat->cbCurAllocated, sizeof(pStat->cbCurAllocated) == sizeof(uint32_t) ? STAMTYPE_U32 : STAMTYPE_U64,
75	STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cbCurAllocated", STAMUNIT_BYTES, "Number of bytes currently allocated.");
76	STAMR3Register(pVM, &pStat->cbAllocated, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cbAllocated", STAMUNIT_BYTES, "Total number of bytes allocated.");
77	STAMR3Register(pVM, &pStat->cbFreed, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cbFreed", STAMUNIT_BYTES, "Total number of bytes freed.");
78	#endif
79	*ppHeap = pHeap;
80	return VINF_SUCCESS;
81	}
82	AssertRC(rc);
83	RTMemFree(pHeap);
84	}
85	AssertMsgFailed(("failed to allocate heap structure\n"));
86	return VERR_NO_MEMORY;
87	}
88
89
90	/**
91	* Destroy a heap.
92	*
93	* @param pHeap Heap handle.
94	*/
95	void mmr3HeapDestroy(PMMHEAP pHeap)
96	{
97	/*
98	* Start by deleting the lock, that'll trap anyone
99	* attempting to use the heap.
100	*/
101	RTCritSectDelete(&pHeap->Lock);
102
103	/*
104	* Walk the node list and free all the memory.
105	*/
106	PMMHEAPHDR pHdr = pHeap->pHead;
107	while (pHdr)
108	{
109	void *pv = pHdr;
110	pHdr = pHdr->pNext;
111	RTMemFree(pv);
112	}
113
114	/*
115	* Free the stat nodes.
116	*/
117	/** @todo free all nodes in a AVL tree. */
118	RTMemFree(pHeap);
119	}
120
121
122	/**
123	* Allocate memory associating it with the VM for collective cleanup.
124	*
125	* The memory will be allocated from the default heap but a header
126	* is added in which we keep track of which VM it belongs to and chain
127	* all the allocations together so they can be freed in a one go.
128	*
129	* This interface is typically used for memory block which will not be
130	* freed during the life of the VM.
131	*
132	* @returns Pointer to allocated memory.
133	* @param pVM VM handle.
134	* @param enmTag Statistics tag. Statistics are collected on a per tag
135	* basis in addition to a global one. Thus we can easily
136	* identify how memory is used by the VM.
137	* @param cbSize Size of the block.
138	*/
139	MMR3DECL(void *) MMR3HeapAlloc(PVM pVM, MMTAG enmTag, size_t cbSize)
140	{
141	if (!pVM->mm.s.pHeap)
142	{
143	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
144	if (VBOX_FAILURE(rc))
145	return NULL;
146	}
147	return mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, false);
148	}
149
150
151	/**
152	* Same as MMR3HeapAlloc().
153	*
154	*
155	* @returns Pointer to allocated memory.
156	* @param pVM VM handle.
157	* @param enmTag Statistics tag. Statistics are collected on a per tag
158	* basis in addition to a global one. Thus we can easily
159	* identify how memory is used by the VM.
160	* @param cbSize Size of the block.
161	* @param ppv Where to store the pointer to the allocated memory on success.
162	*/
163	MMR3DECL(int) MMR3HeapAllocEx(PVM pVM, MMTAG enmTag, size_t cbSize, void **ppv)
164	{
165	if (!pVM->mm.s.pHeap)
166	{
167	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
168	if (VBOX_FAILURE(rc))
169	return rc;
170	}
171	void *pv = mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, false);
172	if (pv)
173	{
174	*ppv = pv;
175	return VINF_SUCCESS;
176	}
177	return VERR_NO_MEMORY;
178	}
179
180
181	/**
182	* Same as MMR3HeapAlloc() only the memory is zeroed.
183	*
184	*
185	* @returns Pointer to allocated memory.
186	* @param pVM VM handle.
187	* @param enmTag Statistics tag. Statistics are collected on a per tag
188	* basis in addition to a global one. Thus we can easily
189	* identify how memory is used by the VM.
190	* @param cbSize Size of the block.
191	*/
192	MMR3DECL(void *) MMR3HeapAllocZ(PVM pVM, MMTAG enmTag, size_t cbSize)
193	{
194	if (!pVM->mm.s.pHeap)
195	{
196	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
197	if (VBOX_FAILURE(rc))
198	return NULL;
199	}
200	return mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, true);
201	}
202
203
204	/**
205	* Same as MMR3HeapAllocZ().
206	*
207	*
208	* @returns Pointer to allocated memory.
209	* @param pVM VM handle.
210	* @param enmTag Statistics tag. Statistics are collected on a per tag
211	* basis in addition to a global one. Thus we can easily
212	* identify how memory is used by the VM.
213	* @param cbSize Size of the block.
214	* @param ppv Where to store the pointer to the allocated memory on success.
215	*/
216	MMR3DECL(int) MMR3HeapAllocZEx(PVM pVM, MMTAG enmTag, size_t cbSize, void **ppv)
217	{
218	if (!pVM->mm.s.pHeap)
219	{
220	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
221	if (VBOX_FAILURE(rc))
222	return rc;
223	}
224	void *pv = mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, true);
225	if (pv)
226	{
227	*ppv = pv;
228	return VINF_SUCCESS;
229	}
230	return VERR_NO_MEMORY;
231	}
232
233
234	/**
235	* Allocate memory from the heap.
236	*
237	* @returns Pointer to allocated memory.
238	* @param pHeap Heap handle.
239	* @param enmTag Statistics tag. Statistics are collected on a per tag
240	* basis in addition to a global one. Thus we can easily
241	* identify how memory is used by the VM.
242	* @param cbSize Size of the block.
243	* @param fZero Whether or not to zero the memory block.
244	*/
245	void * mmr3HeapAlloc(PMMHEAP pHeap, MMTAG enmTag, size_t cbSize, bool fZero)
246	{
247	#ifdef MMR3HEAP_WITH_STATISTICS
248	RTCritSectEnter(&pHeap->Lock);
249
250	/*
251	* Find/alloc statistics nodes.
252	*/
253	pHeap->Stat.cAllocations++;
254	PMMHEAPSTAT pStat = (PMMHEAPSTAT)RTAvlULGet(&pHeap->pStatTree, (AVLULKEY)enmTag);
255	if (pStat)
256	{
257	pStat->cAllocations++;
258
259	RTCritSectLeave(&pHeap->Lock);
260	}
261	else
262	{
263	pStat = (PMMHEAPSTAT)RTMemAllocZ(sizeof(MMHEAPSTAT));
264	if (!pStat)
265	{
266	pHeap->Stat.cFailures++;
267	AssertMsgFailed(("Failed to allocate heap stat record.\n"));
268	RTCritSectLeave(&pHeap->Lock);
269	return NULL;
270	}
271	pStat->Core.Key = (AVLULKEY)enmTag;
272	pStat->pHeap = pHeap;
273	RTAvlULInsert(&pHeap->pStatTree, &pStat->Core);
274
275	pStat->cAllocations++;
276	RTCritSectLeave(&pHeap->Lock);
277
278	/* register the statistics */
279	PVM pVM = pHeap->pVM;
280	char szName[80];
281	const char *pszTag = mmR3GetTagName(enmTag);
282	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cAllocations", pszTag);
283	STAMR3Register(pVM, &pStat->cAllocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_CALLS, "Number or MMR3HeapAlloc() calls.");
284
285	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cReallocations", pszTag);
286	STAMR3Register(pVM, &pStat->cReallocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_CALLS, "Number of MMR3HeapRealloc() calls.");
287
288	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cFrees", pszTag);
289	STAMR3Register(pVM, &pStat->cFrees, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_CALLS, "Number of MMR3HeapFree() calls.");
290
291	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cFailures", pszTag);
292	STAMR3Register(pVM, &pStat->cFailures, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_COUNT, "Number of failures.");
293
294	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cbCurAllocated", pszTag);
295	STAMR3Register(pVM, &pStat->cbCurAllocated, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_BYTES, "Number of bytes currently allocated.");
296
297	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cbAllocated", pszTag);
298	STAMR3Register(pVM, &pStat->cbAllocated, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_BYTES, "Total number of bytes allocated.");
299
300	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cbFreed", pszTag);
301	STAMR3Register(pVM, &pStat->cbFreed, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_BYTES, "Total number of bytes freed.");
302	}
303	#endif
304
305	/*
306	* Validate input.
307	*/
308	if (cbSize == 0)
309	{
310	#ifdef MMR3HEAP_WITH_STATISTICS
311	RTCritSectEnter(&pHeap->Lock);
312	pStat->cFailures++;
313	pHeap->Stat.cFailures++;
314	RTCritSectLeave(&pHeap->Lock);
315	#endif
316	return NULL;
317	}
318
319	/*
320	* Allocate heap block.
321	*/
322	cbSize = RT_ALIGN_Z(cbSize, MMR3HEAP_SIZE_ALIGNMENT) + sizeof(MMHEAPHDR);
323	PMMHEAPHDR pHdr = (PMMHEAPHDR)(fZero ? RTMemAllocZ(cbSize) : RTMemAlloc(cbSize));
324	if (!pHdr)
325	{
326	AssertMsgFailed(("Failed to allocate heap block %d, enmTag=%x(%.4s).\n", cbSize, enmTag, &enmTag));
327	#ifdef MMR3HEAP_WITH_STATISTICS
328	RTCritSectEnter(&pHeap->Lock);
329	pStat->cFailures++;
330	pHeap->Stat.cFailures++;
331	RTCritSectLeave(&pHeap->Lock);
332	#endif
333	return NULL;
334	}
335	Assert(!((uintptr_t)pHdr & (RTMEM_ALIGNMENT - 1)));
336
337	RTCritSectEnter(&pHeap->Lock);
338
339	/*
340	* Init and link in the header.
341	*/
342	pHdr->pNext = NULL;
343	pHdr->pPrev = pHeap->pTail;
344	if (pHdr->pPrev)
345	pHdr->pPrev->pNext = pHdr;
346	else
347	pHeap->pHead = pHdr;
348	pHeap->pTail = pHdr;
349	#ifdef MMR3HEAP_WITH_STATISTICS
350	pHdr->pStat = pStat;
351	#else
352	pHdr->pStat = &pHeap->Stat;
353	#endif
354	pHdr->cbSize = cbSize;
355
356	/*
357	* Update statistics
358	*/
359	#ifdef MMR3HEAP_WITH_STATISTICS
360	pStat->cbAllocated += cbSize;
361	pStat->cbCurAllocated += cbSize;
362	pHeap->Stat.cbAllocated += cbSize;
363	pHeap->Stat.cbCurAllocated += cbSize;
364	#endif
365
366	RTCritSectLeave(&pHeap->Lock);
367
368	return pHdr + 1;
369	}
370
371
372	/**
373	* Reallocate memory allocated with MMR3HeapAlloc() or MMR3HeapRealloc().
374	*
375	* @returns Pointer to reallocated memory.
376	* @param pv Pointer to the memory block to reallocate.
377	* Must not be NULL!
378	* @param cbNewSize New block size.
379	*/
380	MMR3DECL(void ) MMR3HeapRealloc(void pv, size_t cbNewSize)
381	{
382	AssertMsg(pv, ("Invalid pointer pv=%p\n", pv));
383	if (!pv)
384	return NULL;
385
386	/*
387	* If newsize is zero then this is a free.
388	*/
389	if (!cbNewSize)
390	{
391	MMR3HeapFree(pv);
392	return NULL;
393	}
394
395	/*
396	* Validate header.
397	*/
398	PMMHEAPHDR pHdr = (PMMHEAPHDR)pv - 1;
399	if ( pHdr->cbSize & (MMR3HEAP_SIZE_ALIGNMENT - 1)
400	\|\| (uintptr_t)pHdr & (RTMEM_ALIGNMENT - 1))
401	{
402	AssertMsgFailed(("Invalid heap header! pv=%p, size=%#x\n", pv, pHdr->cbSize));
403	return NULL;
404	}
405	Assert(pHdr->pStat != NULL);
406	Assert(!((uintptr_t)pHdr->pNext & (RTMEM_ALIGNMENT - 1)));
407	Assert(!((uintptr_t)pHdr->pPrev & (RTMEM_ALIGNMENT - 1)));
408
409	PMMHEAP pHeap = pHdr->pStat->pHeap;
410
411	#ifdef MMR3HEAP_WITH_STATISTICS
412	RTCritSectEnter(&pHeap->Lock);
413	pHdr->pStat->cReallocations++;
414	pHeap->Stat.cReallocations++;
415	RTCritSectLeave(&pHeap->Lock);
416	#endif
417
418	/*
419	* Rellocate the block.
420	*/
421	cbNewSize = RT_ALIGN_Z(cbNewSize, MMR3HEAP_SIZE_ALIGNMENT) + sizeof(MMHEAPHDR);
422	PMMHEAPHDR pHdrNew = (PMMHEAPHDR)RTMemRealloc(pHdr, cbNewSize);
423	if (!pHdrNew)
424	{
425	#ifdef MMR3HEAP_WITH_STATISTICS
426	RTCritSectEnter(&pHeap->Lock);
427	pHdr->pStat->cFailures++;
428	pHeap->Stat.cFailures++;
429	RTCritSectLeave(&pHeap->Lock);
430	#endif
431	return NULL;
432	}
433
434	/*
435	* Update pointers.
436	*/
437	if (pHdrNew != pHdr)
438	{
439	RTCritSectEnter(&pHeap->Lock);
440	if (pHdrNew->pPrev)
441	pHdrNew->pPrev->pNext = pHdrNew;
442	else
443	pHeap->pHead = pHdrNew;
444
445	if (pHdrNew->pNext)
446	pHdrNew->pNext->pPrev = pHdrNew;
447	else
448	pHeap->pTail = pHdrNew;
449	RTCritSectLeave(&pHeap->Lock);
450	}
451
452	/*
453	* Update statistics.
454	*/
455	#ifdef MMR3HEAP_WITH_STATISTICS
456	RTCritSectEnter(&pHeap->Lock);
457	pHdrNew->pStat->cbAllocated += cbNewSize - pHdrNew->cbSize;
458	pHeap->Stat.cbAllocated += cbNewSize - pHdrNew->cbSize;
459	RTCritSectLeave(&pHeap->Lock);
460	#endif
461
462	pHdrNew->cbSize = cbNewSize;
463
464	return pHdrNew + 1;
465	}
466
467
468	/**
469	* Duplicates the specified string.
470	*
471	* @returns Pointer to the duplicate.
472	* @returns NULL on failure or when input NULL.
473	* @param pVM The VM handle.
474	* @param enmTag Statistics tag. Statistics are collected on a per tag
475	* basis in addition to a global one. Thus we can easily
476	* identify how memory is used by the VM.
477	* @param psz The string to duplicate. NULL is allowed.
478	*/
479	MMR3DECL(char ) MMR3HeapStrDup(PVM pVM, MMTAG enmTag, const char psz)
480	{
481	if (!psz)
482	return NULL;
483	Assert(VALID_PTR(psz));
484	size_t cch = strlen(psz) + 1;
485	char pszDup = (char )MMR3HeapAlloc(pVM, enmTag, cch);
486	if (pszDup)
487	memcpy(pszDup, psz, cch);
488	return pszDup;
489	}
490
491
492	/**
493	* Releases memory allocated with MMR3HeapAlloc() or MMR3HeapRealloc().
494	*
495	* @param pv Pointer to the memory block to free.
496	*/
497	MMR3DECL(void) MMR3HeapFree(void *pv)
498	{
499	/* Ignore NULL pointers. */
500	if (!pv)
501	return;
502
503	/*
504	* Validate header.
505	*/
506	PMMHEAPHDR pHdr = (PMMHEAPHDR)pv - 1;
507	if ( pHdr->cbSize & (MMR3HEAP_SIZE_ALIGNMENT - 1)
508	\|\| (uintptr_t)pHdr & (RTMEM_ALIGNMENT - 1))
509	{
510	AssertMsgFailed(("Invalid heap header! pv=%p, size=%#x\n", pv, pHdr->cbSize));
511	return;
512	}
513	Assert(pHdr->pStat != NULL);
514	Assert(!((uintptr_t)pHdr->pNext & (RTMEM_ALIGNMENT - 1)));
515	Assert(!((uintptr_t)pHdr->pPrev & (RTMEM_ALIGNMENT - 1)));
516
517	/*
518	* Update statistics
519	*/
520	PMMHEAP pHeap = pHdr->pStat->pHeap;
521	RTCritSectEnter(&pHeap->Lock);
522
523	#ifdef MMR3HEAP_WITH_STATISTICS
524	pHdr->pStat->cFrees++;
525	pHeap->Stat.cFrees++;
526	pHdr->pStat->cbFreed += pHdr->cbSize;
527	pHeap->Stat.cbFreed += pHdr->cbSize;
528	pHdr->pStat->cbCurAllocated -= pHdr->cbSize;
529	pHeap->Stat.cbCurAllocated -= pHdr->cbSize;
530	#endif
531
532	/*
533	* Unlink it.
534	*/
535	if (pHdr->pPrev)
536	pHdr->pPrev->pNext = pHdr->pNext;
537	else
538	pHeap->pHead = pHdr->pNext;
539
540	if (pHdr->pNext)
541	pHdr->pNext->pPrev = pHdr->pPrev;
542	else
543	pHeap->pTail = pHdr->pPrev;
544
545	RTCritSectLeave(&pHeap->Lock);
546
547	/*
548	* Free the memory.
549	*/
550	RTMemFree(pHdr);
551	}
552
553
554	/**
555	* Gets the string name of a memory tag.
556	*
557	* @returns name of enmTag.
558	* @param enmTag The tag.
559	*/
560	const char *mmR3GetTagName(MMTAG enmTag)
561	{
562	switch (enmTag)
563	{
564	#define TAG2STR(tag) case MM_TAG_##tag: return #tag
565
566	TAG2STR(CFGM);
567	TAG2STR(CFGM_BYTES);
568	TAG2STR(CFGM_STRING);
569	TAG2STR(CFGM_USER);
570
571	TAG2STR(CSAM);
572	TAG2STR(CSAM_PATCH);
573
574	TAG2STR(DBGF);
575	TAG2STR(DBGF_INFO);
576	TAG2STR(DBGF_LINE);
577	TAG2STR(DBGF_LINE_DUP);
578	TAG2STR(DBGF_STACK);
579	TAG2STR(DBGF_SYMBOL);
580	TAG2STR(DBGF_SYMBOL_DUP);
581	TAG2STR(DBGF_MODULE);
582
583	TAG2STR(EM);
584
585	TAG2STR(IOM);
586	TAG2STR(IOM_STATS);
587
588	TAG2STR(MM);
589	TAG2STR(MM_LOOKUP_GUEST);
590	TAG2STR(MM_LOOKUP_PHYS);
591	TAG2STR(MM_LOOKUP_VIRT);
592	TAG2STR(MM_PAGE);
593
594	TAG2STR(PATM);
595	TAG2STR(PATM_PATCH);
596
597	TAG2STR(PDM);
598	TAG2STR(PDM_DEVICE);
599	TAG2STR(PDM_DEVICE_USER);
600	TAG2STR(PDM_DRIVER);
601	TAG2STR(PDM_DRIVER_USER);
602	TAG2STR(PDM_LUN);
603	TAG2STR(PDM_QUEUE);
604
605	TAG2STR(PGM);
606	TAG2STR(PGM_HANDLERS);
607	TAG2STR(PGM_POOL);
608
609	TAG2STR(REM);
610
611	TAG2STR(SELM);
612
613	TAG2STR(SSM);
614
615	TAG2STR(STAM);
616
617	TAG2STR(TM);
618
619	TAG2STR(TRPM);
620
621	TAG2STR(VM);
622	TAG2STR(VM_REQ);
623
624	TAG2STR(VMM);
625
626	TAG2STR(HWACCM);
627
628	#undef TAG2STR
629
630	default:
631	{
632	AssertMsgFailed(("Unknown tag %d! forgot to add it to the switch?\n", enmTag));
633	static char sz[48];
634	RTStrPrintf(sz, sizeof(sz), "%d", enmTag);
635	return sz;
636	}
637	}
638	}
639

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source: vbox/trunk/src/VBox/VMM/MMHeap.cpp@ 1272

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