1 /******************************************************************************
2  *
3  * Module Name: uttrack - Memory allocation tracking routines (debug only)
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2013, Intel Corp.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions, and the following disclaimer,
16  *    without modification.
17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18  *    substantially similar to the "NO WARRANTY" disclaimer below
19  *    ("Disclaimer") and any redistribution must be conditioned upon
20  *    including a substantially similar Disclaimer requirement for further
21  *    binary redistribution.
22  * 3. Neither the names of the above-listed copyright holders nor the names
23  *    of any contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * Alternatively, this software may be distributed under the terms of the
27  * GNU General Public License ("GPL") version 2 as published by the Free
28  * Software Foundation.
29  *
30  * NO WARRANTY
31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41  * POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 /*
45  * These procedures are used for tracking memory leaks in the subsystem, and
46  * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set.
47  *
48  * Each memory allocation is tracked via a doubly linked list. Each
49  * element contains the caller's component, module name, function name, and
50  * line number. AcpiUtAllocate and AcpiUtAllocateZeroed call
51  * AcpiUtTrackAllocation to add an element to the list; deletion
52  * occurs in the body of AcpiUtFree.
53  */
54 
55 #define __UTTRACK_C__
56 
57 #include "acpi.h"
58 #include "accommon.h"
59 
60 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
61 
62 #define _COMPONENT          ACPI_UTILITIES
63         ACPI_MODULE_NAME    ("uttrack")
64 
65 
66 /* Local prototypes */
67 
68 static ACPI_DEBUG_MEM_BLOCK *
69 AcpiUtFindAllocation (
70     ACPI_DEBUG_MEM_BLOCK    *Allocation);
71 
72 static ACPI_STATUS
73 AcpiUtTrackAllocation (
74     ACPI_DEBUG_MEM_BLOCK    *Address,
75     ACPI_SIZE               Size,
76     UINT8                   AllocType,
77     UINT32                  Component,
78     const char              *Module,
79     UINT32                  Line);
80 
81 static ACPI_STATUS
82 AcpiUtRemoveAllocation (
83     ACPI_DEBUG_MEM_BLOCK    *Address,
84     UINT32                  Component,
85     const char              *Module,
86     UINT32                  Line);
87 
88 
89 /*******************************************************************************
90  *
91  * FUNCTION:    AcpiUtCreateList
92  *
93  * PARAMETERS:  CacheName       - Ascii name for the cache
94  *              ObjectSize      - Size of each cached object
95  *              ReturnCache     - Where the new cache object is returned
96  *
97  * RETURN:      Status
98  *
99  * DESCRIPTION: Create a local memory list for tracking purposed
100  *
101  ******************************************************************************/
102 
103 ACPI_STATUS
104 AcpiUtCreateList (
105     char                    *ListName,
106     UINT16                  ObjectSize,
107     ACPI_MEMORY_LIST        **ReturnCache)
108 {
109     ACPI_MEMORY_LIST        *Cache;
110 
111 
112     Cache = AcpiOsAllocate (sizeof (ACPI_MEMORY_LIST));
113     if (!Cache)
114     {
115         return (AE_NO_MEMORY);
116     }
117 
118     ACPI_MEMSET (Cache, 0, sizeof (ACPI_MEMORY_LIST));
119 
120     Cache->ListName   = ListName;
121     Cache->ObjectSize = ObjectSize;
122 
123     *ReturnCache = Cache;
124     return (AE_OK);
125 }
126 
127 
128 /*******************************************************************************
129  *
130  * FUNCTION:    AcpiUtAllocateAndTrack
131  *
132  * PARAMETERS:  Size                - Size of the allocation
133  *              Component           - Component type of caller
134  *              Module              - Source file name of caller
135  *              Line                - Line number of caller
136  *
137  * RETURN:      Address of the allocated memory on success, NULL on failure.
138  *
139  * DESCRIPTION: The subsystem's equivalent of malloc.
140  *
141  ******************************************************************************/
142 
143 void *
144 AcpiUtAllocateAndTrack (
145     ACPI_SIZE               Size,
146     UINT32                  Component,
147     const char              *Module,
148     UINT32                  Line)
149 {
150     ACPI_DEBUG_MEM_BLOCK    *Allocation;
151     ACPI_STATUS             Status;
152 
153 
154     /* Check for an inadvertent size of zero bytes */
155 
156     if (!Size)
157     {
158         ACPI_WARNING ((Module, Line,
159             "Attempt to allocate zero bytes, allocating 1 byte"));
160         Size = 1;
161     }
162 
163     Allocation = AcpiOsAllocate (Size + sizeof (ACPI_DEBUG_MEM_HEADER));
164     if (!Allocation)
165     {
166         /* Report allocation error */
167 
168         ACPI_WARNING ((Module, Line,
169             "Could not allocate size %u", (UINT32) Size));
170 
171         return (NULL);
172     }
173 
174     Status = AcpiUtTrackAllocation (Allocation, Size,
175                     ACPI_MEM_MALLOC, Component, Module, Line);
176     if (ACPI_FAILURE (Status))
177     {
178         AcpiOsFree (Allocation);
179         return (NULL);
180     }
181 
182     AcpiGbl_GlobalList->TotalAllocated++;
183     AcpiGbl_GlobalList->TotalSize += (UINT32) Size;
184     AcpiGbl_GlobalList->CurrentTotalSize += (UINT32) Size;
185     if (AcpiGbl_GlobalList->CurrentTotalSize > AcpiGbl_GlobalList->MaxOccupied)
186     {
187         AcpiGbl_GlobalList->MaxOccupied = AcpiGbl_GlobalList->CurrentTotalSize;
188     }
189 
190     return ((void *) &Allocation->UserSpace);
191 }
192 
193 
194 /*******************************************************************************
195  *
196  * FUNCTION:    AcpiUtAllocateZeroedAndTrack
197  *
198  * PARAMETERS:  Size                - Size of the allocation
199  *              Component           - Component type of caller
200  *              Module              - Source file name of caller
201  *              Line                - Line number of caller
202  *
203  * RETURN:      Address of the allocated memory on success, NULL on failure.
204  *
205  * DESCRIPTION: Subsystem equivalent of calloc.
206  *
207  ******************************************************************************/
208 
209 void *
210 AcpiUtAllocateZeroedAndTrack (
211     ACPI_SIZE               Size,
212     UINT32                  Component,
213     const char              *Module,
214     UINT32                  Line)
215 {
216     ACPI_DEBUG_MEM_BLOCK    *Allocation;
217     ACPI_STATUS             Status;
218 
219 
220     /* Check for an inadvertent size of zero bytes */
221 
222     if (!Size)
223     {
224         ACPI_WARNING ((Module, Line,
225             "Attempt to allocate zero bytes, allocating 1 byte"));
226         Size = 1;
227     }
228 
229     Allocation = AcpiOsAllocateZeroed (Size + sizeof (ACPI_DEBUG_MEM_HEADER));
230     if (!Allocation)
231     {
232         /* Report allocation error */
233 
234         ACPI_ERROR ((Module, Line,
235             "Could not allocate size %u", (UINT32) Size));
236         return (NULL);
237     }
238 
239     Status = AcpiUtTrackAllocation (Allocation, Size,
240                 ACPI_MEM_CALLOC, Component, Module, Line);
241     if (ACPI_FAILURE (Status))
242     {
243         AcpiOsFree (Allocation);
244         return (NULL);
245     }
246 
247     AcpiGbl_GlobalList->TotalAllocated++;
248     AcpiGbl_GlobalList->TotalSize += (UINT32) Size;
249     AcpiGbl_GlobalList->CurrentTotalSize += (UINT32) Size;
250     if (AcpiGbl_GlobalList->CurrentTotalSize > AcpiGbl_GlobalList->MaxOccupied)
251     {
252         AcpiGbl_GlobalList->MaxOccupied = AcpiGbl_GlobalList->CurrentTotalSize;
253     }
254 
255     return ((void *) &Allocation->UserSpace);
256 }
257 
258 
259 /*******************************************************************************
260  *
261  * FUNCTION:    AcpiUtFreeAndTrack
262  *
263  * PARAMETERS:  Allocation          - Address of the memory to deallocate
264  *              Component           - Component type of caller
265  *              Module              - Source file name of caller
266  *              Line                - Line number of caller
267  *
268  * RETURN:      None
269  *
270  * DESCRIPTION: Frees the memory at Allocation
271  *
272  ******************************************************************************/
273 
274 void
275 AcpiUtFreeAndTrack (
276     void                    *Allocation,
277     UINT32                  Component,
278     const char              *Module,
279     UINT32                  Line)
280 {
281     ACPI_DEBUG_MEM_BLOCK    *DebugBlock;
282     ACPI_STATUS             Status;
283 
284 
285     ACPI_FUNCTION_TRACE_PTR (UtFree, Allocation);
286 
287 
288     if (NULL == Allocation)
289     {
290         ACPI_ERROR ((Module, Line,
291             "Attempt to delete a NULL address"));
292 
293         return_VOID;
294     }
295 
296     DebugBlock = ACPI_CAST_PTR (ACPI_DEBUG_MEM_BLOCK,
297                     (((char *) Allocation) - sizeof (ACPI_DEBUG_MEM_HEADER)));
298 
299     AcpiGbl_GlobalList->TotalFreed++;
300     AcpiGbl_GlobalList->CurrentTotalSize -= DebugBlock->Size;
301 
302     Status = AcpiUtRemoveAllocation (DebugBlock,
303                     Component, Module, Line);
304     if (ACPI_FAILURE (Status))
305     {
306         ACPI_EXCEPTION ((AE_INFO, Status, "Could not free memory"));
307     }
308 
309     AcpiOsFree (DebugBlock);
310     ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p freed\n", Allocation));
311     return_VOID;
312 }
313 
314 
315 /*******************************************************************************
316  *
317  * FUNCTION:    AcpiUtFindAllocation
318  *
319  * PARAMETERS:  Allocation              - Address of allocated memory
320  *
321  * RETURN:      Three cases:
322  *              1) List is empty, NULL is returned.
323  *              2) Element was found. Returns Allocation parameter.
324  *              3) Element was not found. Returns position where it should be
325  *                  inserted into the list.
326  *
327  * DESCRIPTION: Searches for an element in the global allocation tracking list.
328  *              If the element is not found, returns the location within the
329  *              list where the element should be inserted.
330  *
331  *              Note: The list is ordered by larger-to-smaller addresses.
332  *
333  *              This global list is used to detect memory leaks in ACPICA as
334  *              well as other issues such as an attempt to release the same
335  *              internal object more than once. Although expensive as far
336  *              as cpu time, this list is much more helpful for finding these
337  *              types of issues than using memory leak detectors outside of
338  *              the ACPICA code.
339  *
340  ******************************************************************************/
341 
342 static ACPI_DEBUG_MEM_BLOCK *
343 AcpiUtFindAllocation (
344     ACPI_DEBUG_MEM_BLOCK    *Allocation)
345 {
346     ACPI_DEBUG_MEM_BLOCK    *Element;
347 
348 
349     Element = AcpiGbl_GlobalList->ListHead;
350     if (!Element)
351     {
352         return (NULL);
353     }
354 
355     /*
356      * Search for the address.
357      *
358      * Note: List is ordered by larger-to-smaller addresses, on the
359      * assumption that a new allocation usually has a larger address
360      * than previous allocations.
361      */
362     while (Element > Allocation)
363     {
364         /* Check for end-of-list */
365 
366         if (!Element->Next)
367         {
368             return (Element);
369         }
370 
371         Element = Element->Next;
372     }
373 
374     if (Element == Allocation)
375     {
376         return (Element);
377     }
378 
379     return (Element->Previous);
380 }
381 
382 
383 /*******************************************************************************
384  *
385  * FUNCTION:    AcpiUtTrackAllocation
386  *
387  * PARAMETERS:  Allocation          - Address of allocated memory
388  *              Size                - Size of the allocation
389  *              AllocType           - MEM_MALLOC or MEM_CALLOC
390  *              Component           - Component type of caller
391  *              Module              - Source file name of caller
392  *              Line                - Line number of caller
393  *
394  * RETURN:      Status
395  *
396  * DESCRIPTION: Inserts an element into the global allocation tracking list.
397  *
398  ******************************************************************************/
399 
400 static ACPI_STATUS
401 AcpiUtTrackAllocation (
402     ACPI_DEBUG_MEM_BLOCK    *Allocation,
403     ACPI_SIZE               Size,
404     UINT8                   AllocType,
405     UINT32                  Component,
406     const char              *Module,
407     UINT32                  Line)
408 {
409     ACPI_MEMORY_LIST        *MemList;
410     ACPI_DEBUG_MEM_BLOCK    *Element;
411     ACPI_STATUS             Status = AE_OK;
412 
413 
414     ACPI_FUNCTION_TRACE_PTR (UtTrackAllocation, Allocation);
415 
416 
417     if (AcpiGbl_DisableMemTracking)
418     {
419         return_ACPI_STATUS (AE_OK);
420     }
421 
422     MemList = AcpiGbl_GlobalList;
423     Status = AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
424     if (ACPI_FAILURE (Status))
425     {
426         return_ACPI_STATUS (Status);
427     }
428 
429     /*
430      * Search the global list for this address to make sure it is not
431      * already present. This will catch several kinds of problems.
432      */
433     Element = AcpiUtFindAllocation (Allocation);
434     if (Element == Allocation)
435     {
436         ACPI_ERROR ((AE_INFO,
437             "UtTrackAllocation: Allocation (%p) already present in global list!",
438             Allocation));
439         goto UnlockAndExit;
440     }
441 
442     /* Fill in the instance data */
443 
444     Allocation->Size      = (UINT32) Size;
445     Allocation->AllocType = AllocType;
446     Allocation->Component = Component;
447     Allocation->Line      = Line;
448 
449     ACPI_STRNCPY (Allocation->Module, Module, ACPI_MAX_MODULE_NAME);
450     Allocation->Module[ACPI_MAX_MODULE_NAME-1] = 0;
451 
452     if (!Element)
453     {
454         /* Insert at list head */
455 
456         if (MemList->ListHead)
457         {
458             ((ACPI_DEBUG_MEM_BLOCK *)(MemList->ListHead))->Previous = Allocation;
459         }
460 
461         Allocation->Next = MemList->ListHead;
462         Allocation->Previous = NULL;
463 
464         MemList->ListHead = Allocation;
465     }
466     else
467     {
468         /* Insert after element */
469 
470         Allocation->Next = Element->Next;
471         Allocation->Previous = Element;
472 
473         if (Element->Next)
474         {
475             (Element->Next)->Previous = Allocation;
476         }
477 
478         Element->Next = Allocation;
479     }
480 
481 
482 UnlockAndExit:
483     Status = AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
484     return_ACPI_STATUS (Status);
485 }
486 
487 
488 /*******************************************************************************
489  *
490  * FUNCTION:    AcpiUtRemoveAllocation
491  *
492  * PARAMETERS:  Allocation          - Address of allocated memory
493  *              Component           - Component type of caller
494  *              Module              - Source file name of caller
495  *              Line                - Line number of caller
496  *
497  * RETURN:      Status
498  *
499  * DESCRIPTION: Deletes an element from the global allocation tracking list.
500  *
501  ******************************************************************************/
502 
503 static ACPI_STATUS
504 AcpiUtRemoveAllocation (
505     ACPI_DEBUG_MEM_BLOCK    *Allocation,
506     UINT32                  Component,
507     const char              *Module,
508     UINT32                  Line)
509 {
510     ACPI_MEMORY_LIST        *MemList;
511     ACPI_STATUS             Status;
512 
513 
514     ACPI_FUNCTION_NAME (UtRemoveAllocation);
515 
516 
517     if (AcpiGbl_DisableMemTracking)
518     {
519         return (AE_OK);
520     }
521 
522     MemList = AcpiGbl_GlobalList;
523     if (NULL == MemList->ListHead)
524     {
525         /* No allocations! */
526 
527         ACPI_ERROR ((Module, Line,
528             "Empty allocation list, nothing to free!"));
529 
530         return (AE_OK);
531     }
532 
533     Status = AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
534     if (ACPI_FAILURE (Status))
535     {
536         return (Status);
537     }
538 
539     /* Unlink */
540 
541     if (Allocation->Previous)
542     {
543         (Allocation->Previous)->Next = Allocation->Next;
544     }
545     else
546     {
547         MemList->ListHead = Allocation->Next;
548     }
549 
550     if (Allocation->Next)
551     {
552         (Allocation->Next)->Previous = Allocation->Previous;
553     }
554 
555     ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n",
556         &Allocation->UserSpace, Allocation->Size));
557 
558     /* Mark the segment as deleted */
559 
560     ACPI_MEMSET (&Allocation->UserSpace, 0xEA, Allocation->Size);
561 
562     Status = AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
563     return (Status);
564 }
565 
566 
567 /*******************************************************************************
568  *
569  * FUNCTION:    AcpiUtDumpAllocationInfo
570  *
571  * PARAMETERS:  None
572  *
573  * RETURN:      None
574  *
575  * DESCRIPTION: Print some info about the outstanding allocations.
576  *
577  ******************************************************************************/
578 
579 void
580 AcpiUtDumpAllocationInfo (
581     void)
582 {
583 /*
584     ACPI_MEMORY_LIST        *MemList;
585 */
586 
587     ACPI_FUNCTION_TRACE (UtDumpAllocationInfo);
588 
589 /*
590     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
591                     ("%30s: %4d (%3d Kb)\n", "Current allocations",
592                     MemList->CurrentCount,
593                     ROUND_UP_TO_1K (MemList->CurrentSize)));
594 
595     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
596                     ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
597                     MemList->MaxConcurrentCount,
598                     ROUND_UP_TO_1K (MemList->MaxConcurrentSize)));
599 
600 
601     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
602                     ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
603                     RunningObjectCount,
604                     ROUND_UP_TO_1K (RunningObjectSize)));
605 
606     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
607                     ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
608                     RunningAllocCount,
609                     ROUND_UP_TO_1K (RunningAllocSize)));
610 
611 
612     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
613                     ("%30s: %4d (%3d Kb)\n", "Current Nodes",
614                     AcpiGbl_CurrentNodeCount,
615                     ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize)));
616 
617     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
618                     ("%30s: %4d (%3d Kb)\n", "Max Nodes",
619                     AcpiGbl_MaxConcurrentNodeCount,
620                     ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount *
621                         sizeof (ACPI_NAMESPACE_NODE)))));
622 */
623     return_VOID;
624 }
625 
626 
627 /*******************************************************************************
628  *
629  * FUNCTION:    AcpiUtDumpAllocations
630  *
631  * PARAMETERS:  Component           - Component(s) to dump info for.
632  *              Module              - Module to dump info for. NULL means all.
633  *
634  * RETURN:      None
635  *
636  * DESCRIPTION: Print a list of all outstanding allocations.
637  *
638  ******************************************************************************/
639 
640 void
641 AcpiUtDumpAllocations (
642     UINT32                  Component,
643     const char              *Module)
644 {
645     ACPI_DEBUG_MEM_BLOCK    *Element;
646     ACPI_DESCRIPTOR         *Descriptor;
647     UINT32                  NumOutstanding = 0;
648     UINT8                   DescriptorType;
649 
650 
651     ACPI_FUNCTION_TRACE (UtDumpAllocations);
652 
653 
654     if (AcpiGbl_DisableMemTracking)
655     {
656         return_VOID;
657     }
658 
659     /*
660      * Walk the allocation list.
661      */
662     if (ACPI_FAILURE (AcpiUtAcquireMutex (ACPI_MTX_MEMORY)))
663     {
664         return_VOID;
665     }
666 
667     Element = AcpiGbl_GlobalList->ListHead;
668     while (Element)
669     {
670         if ((Element->Component & Component) &&
671             ((Module == NULL) || (0 == ACPI_STRCMP (Module, Element->Module))))
672         {
673             Descriptor = ACPI_CAST_PTR (ACPI_DESCRIPTOR, &Element->UserSpace);
674 
675             if (Element->Size < sizeof (ACPI_COMMON_DESCRIPTOR))
676             {
677                 AcpiOsPrintf ("%p Length 0x%04X %9.9s-%u "
678                     "[Not a Descriptor - too small]\n",
679                     Descriptor, Element->Size, Element->Module,
680                     Element->Line);
681             }
682             else
683             {
684                 /* Ignore allocated objects that are in a cache */
685 
686                 if (ACPI_GET_DESCRIPTOR_TYPE (Descriptor) != ACPI_DESC_TYPE_CACHED)
687                 {
688                     AcpiOsPrintf ("%p Length 0x%04X %9.9s-%u [%s] ",
689                         Descriptor, Element->Size, Element->Module,
690                         Element->Line, AcpiUtGetDescriptorName (Descriptor));
691 
692                     /* Validate the descriptor type using Type field and length */
693 
694                     DescriptorType = 0; /* Not a valid descriptor type */
695 
696                     switch (ACPI_GET_DESCRIPTOR_TYPE (Descriptor))
697                     {
698                     case ACPI_DESC_TYPE_OPERAND:
699 
700                         if (Element->Size == sizeof (ACPI_OPERAND_OBJECT))
701                         {
702                             DescriptorType = ACPI_DESC_TYPE_OPERAND;
703                         }
704                         break;
705 
706                     case ACPI_DESC_TYPE_PARSER:
707 
708                         if (Element->Size == sizeof (ACPI_PARSE_OBJECT))
709                         {
710                             DescriptorType = ACPI_DESC_TYPE_PARSER;
711                         }
712                         break;
713 
714                     case ACPI_DESC_TYPE_NAMED:
715 
716                         if (Element->Size == sizeof (ACPI_NAMESPACE_NODE))
717                         {
718                             DescriptorType = ACPI_DESC_TYPE_NAMED;
719                         }
720                         break;
721 
722                     default:
723 
724                         break;
725                     }
726 
727                     /* Display additional info for the major descriptor types */
728 
729                     switch (DescriptorType)
730                     {
731                     case ACPI_DESC_TYPE_OPERAND:
732 
733                         AcpiOsPrintf ("%12.12s  RefCount 0x%04X\n",
734                             AcpiUtGetTypeName (Descriptor->Object.Common.Type),
735                             Descriptor->Object.Common.ReferenceCount);
736                         break;
737 
738                     case ACPI_DESC_TYPE_PARSER:
739 
740                         AcpiOsPrintf ("AmlOpcode 0x%04hX\n",
741                             Descriptor->Op.Asl.AmlOpcode);
742                         break;
743 
744                     case ACPI_DESC_TYPE_NAMED:
745 
746                         AcpiOsPrintf ("%4.4s\n",
747                             AcpiUtGetNodeName (&Descriptor->Node));
748                         break;
749 
750                     default:
751 
752                         AcpiOsPrintf ( "\n");
753                         break;
754                     }
755                 }
756             }
757 
758             NumOutstanding++;
759         }
760 
761         Element = Element->Next;
762     }
763 
764     (void) AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
765 
766     /* Print summary */
767 
768     if (!NumOutstanding)
769     {
770         ACPI_INFO ((AE_INFO, "No outstanding allocations"));
771     }
772     else
773     {
774         ACPI_ERROR ((AE_INFO, "%u(0x%X) Outstanding allocations",
775             NumOutstanding, NumOutstanding));
776     }
777 
778     return_VOID;
779 }
780 
781 #endif  /* ACPI_DBG_TRACK_ALLOCATIONS */
782