sys/contrib/dev/acpica/components/utilities/uttrack.c

   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 <contrib/dev/acpica/include/acpi.h>
  58 #include <contrib/dev/acpica/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     Allocation = AcpiUtAllocate (Size + sizeof (ACPI_DEBUG_MEM_HEADER),
 155                     Component, Module, Line);
 156     if (!Allocation)
 157     {
 158         return (NULL);
 159     }
 160
 161     Status = AcpiUtTrackAllocation (Allocation, Size,
 162                     ACPI_MEM_MALLOC, Component, Module, Line);
 163     if (ACPI_FAILURE (Status))
 164     {
 165         AcpiOsFree (Allocation);
 166         return (NULL);
 167     }
 168
 169     AcpiGbl_GlobalList->TotalAllocated++;
 170     AcpiGbl_GlobalList->TotalSize += (UINT32) Size;
 171     AcpiGbl_GlobalList->CurrentTotalSize += (UINT32) Size;
 172     if (AcpiGbl_GlobalList->CurrentTotalSize > AcpiGbl_GlobalList->MaxOccupied)
 173     {
 174         AcpiGbl_GlobalList->MaxOccupied = AcpiGbl_GlobalList->CurrentTotalSize;
 175     }
 176
 177     return ((void *) &Allocation->UserSpace);
 178 }
 179
 180
 181 /*******************************************************************************
 182  *
 183  * FUNCTION:    AcpiUtAllocateZeroedAndTrack
 184  *
 185  * PARAMETERS:  Size                - Size of the allocation
 186  *              Component           - Component type of caller
 187  *              Module              - Source file name of caller
 188  *              Line                - Line number of caller
 189  *
 190  * RETURN:      Address of the allocated memory on success, NULL on failure.
 191  *
 192  * DESCRIPTION: Subsystem equivalent of calloc.
 193  *
 194  ******************************************************************************/
 195
 196 void *
 197 AcpiUtAllocateZeroedAndTrack (
 198     ACPI_SIZE               Size,
 199     UINT32                  Component,
 200     const char              *Module,
 201     UINT32                  Line)
 202 {
 203     ACPI_DEBUG_MEM_BLOCK    *Allocation;
 204     ACPI_STATUS             Status;
 205
 206
 207     Allocation = AcpiUtAllocateZeroed (Size + sizeof (ACPI_DEBUG_MEM_HEADER),
 208                     Component, Module, Line);
 209     if (!Allocation)
 210     {
 211         /* Report allocation error */
 212
 213         ACPI_ERROR ((Module, Line,
 214             "Could not allocate size %u", (UINT32) Size));
 215         return (NULL);
 216     }
 217
 218     Status = AcpiUtTrackAllocation (Allocation, Size,
 219                 ACPI_MEM_CALLOC, Component, Module, Line);
 220     if (ACPI_FAILURE (Status))
 221     {
 222         AcpiOsFree (Allocation);
 223         return (NULL);
 224     }
 225
 226     AcpiGbl_GlobalList->TotalAllocated++;
 227     AcpiGbl_GlobalList->TotalSize += (UINT32) Size;
 228     AcpiGbl_GlobalList->CurrentTotalSize += (UINT32) Size;
 229     if (AcpiGbl_GlobalList->CurrentTotalSize > AcpiGbl_GlobalList->MaxOccupied)
 230     {
 231         AcpiGbl_GlobalList->MaxOccupied = AcpiGbl_GlobalList->CurrentTotalSize;
 232     }
 233
 234     return ((void *) &Allocation->UserSpace);
 235 }
 236
 237
 238 /*******************************************************************************
 239  *
 240  * FUNCTION:    AcpiUtFreeAndTrack
 241  *
 242  * PARAMETERS:  Allocation          - Address of the memory to deallocate
 243  *              Component           - Component type of caller
 244  *              Module              - Source file name of caller
 245  *              Line                - Line number of caller
 246  *
 247  * RETURN:      None
 248  *
 249  * DESCRIPTION: Frees the memory at Allocation
 250  *
 251  ******************************************************************************/
 252
 253 void
 254 AcpiUtFreeAndTrack (
 255     void                    *Allocation,
 256     UINT32                  Component,
 257     const char              *Module,
 258     UINT32                  Line)
 259 {
 260     ACPI_DEBUG_MEM_BLOCK    *DebugBlock;
 261     ACPI_STATUS             Status;
 262
 263
 264     ACPI_FUNCTION_TRACE_PTR (UtFree, Allocation);
 265
 266
 267     if (NULL == Allocation)
 268     {
 269         ACPI_ERROR ((Module, Line,
 270             "Attempt to delete a NULL address"));
 271
 272         return_VOID;
 273     }
 274
 275     DebugBlock = ACPI_CAST_PTR (ACPI_DEBUG_MEM_BLOCK,
 276                     (((char *) Allocation) - sizeof (ACPI_DEBUG_MEM_HEADER)));
 277
 278     AcpiGbl_GlobalList->TotalFreed++;
 279     AcpiGbl_GlobalList->CurrentTotalSize -= DebugBlock->Size;
 280
 281     Status = AcpiUtRemoveAllocation (DebugBlock,
 282                     Component, Module, Line);
 283     if (ACPI_FAILURE (Status))
 284     {
 285         ACPI_EXCEPTION ((AE_INFO, Status, "Could not free memory"));
 286     }
 287
 288     AcpiOsFree (DebugBlock);
 289     ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p freed\n", Allocation));
 290     return_VOID;
 291 }
 292
 293
 294 /*******************************************************************************
 295  *
 296  * FUNCTION:    AcpiUtFindAllocation
 297  *
 298  * PARAMETERS:  Allocation              - Address of allocated memory
 299  *
 300  * RETURN:      Three cases:
 301  *              1) List is empty, NULL is returned.
 302  *              2) Element was found. Returns Allocation parameter.
 303  *              3) Element was not found. Returns position where it should be
 304  *                  inserted into the list.
 305  *
 306  * DESCRIPTION: Searches for an element in the global allocation tracking list.
 307  *              If the element is not found, returns the location within the
 308  *              list where the element should be inserted.
 309  *
 310  *              Note: The list is ordered by larger-to-smaller addresses.
 311  *
 312  *              This global list is used to detect memory leaks in ACPICA as
 313  *              well as other issues such as an attempt to release the same
 314  *              internal object more than once. Although expensive as far
 315  *              as cpu time, this list is much more helpful for finding these
 316  *              types of issues than using memory leak detectors outside of
 317  *              the ACPICA code.
 318  *
 319  ******************************************************************************/
 320
 321 static ACPI_DEBUG_MEM_BLOCK *
 322 AcpiUtFindAllocation (
 323     ACPI_DEBUG_MEM_BLOCK    *Allocation)
 324 {
 325     ACPI_DEBUG_MEM_BLOCK    *Element;
 326
 327
 328     Element = AcpiGbl_GlobalList->ListHead;
 329     if (!Element)
 330     {
 331         return (NULL);
 332     }
 333
 334     /*
 335      * Search for the address.
 336      *
 337      * Note: List is ordered by larger-to-smaller addresses, on the
 338      * assumption that a new allocation usually has a larger address
 339      * than previous allocations.
 340      */
 341     while (Element > Allocation)
 342     {
 343         /* Check for end-of-list */
 344
 345         if (!Element->Next)
 346         {
 347             return (Element);
 348         }
 349
 350         Element = Element->Next;
 351     }
 352
 353     if (Element == Allocation)
 354     {
 355         return (Element);
 356     }
 357
 358     return (Element->Previous);
 359 }
 360
 361
 362 /*******************************************************************************
 363  *
 364  * FUNCTION:    AcpiUtTrackAllocation
 365  *
 366  * PARAMETERS:  Allocation          - Address of allocated memory
 367  *              Size                - Size of the allocation
 368  *              AllocType           - MEM_MALLOC or MEM_CALLOC
 369  *              Component           - Component type of caller
 370  *              Module              - Source file name of caller
 371  *              Line                - Line number of caller
 372  *
 373  * RETURN:      Status
 374  *
 375  * DESCRIPTION: Inserts an element into the global allocation tracking list.
 376  *
 377  ******************************************************************************/
 378
 379 static ACPI_STATUS
 380 AcpiUtTrackAllocation (
 381     ACPI_DEBUG_MEM_BLOCK    *Allocation,
 382     ACPI_SIZE               Size,
 383     UINT8                   AllocType,
 384     UINT32                  Component,
 385     const char              *Module,
 386     UINT32                  Line)
 387 {
 388     ACPI_MEMORY_LIST        *MemList;
 389     ACPI_DEBUG_MEM_BLOCK    *Element;
 390     ACPI_STATUS             Status = AE_OK;
 391
 392
 393     ACPI_FUNCTION_TRACE_PTR (UtTrackAllocation, Allocation);
 394
 395
 396     if (AcpiGbl_DisableMemTracking)
 397     {
 398         return_ACPI_STATUS (AE_OK);
 399     }
 400
 401     MemList = AcpiGbl_GlobalList;
 402     Status = AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
 403     if (ACPI_FAILURE (Status))
 404     {
 405         return_ACPI_STATUS (Status);
 406     }
 407
 408     /*
 409      * Search the global list for this address to make sure it is not
 410      * already present. This will catch several kinds of problems.
 411      */
 412     Element = AcpiUtFindAllocation (Allocation);
 413     if (Element == Allocation)
 414     {
 415         ACPI_ERROR ((AE_INFO,
 416             "UtTrackAllocation: Allocation (%p) already present in global list!",
 417             Allocation));
 418         goto UnlockAndExit;
 419     }
 420
 421     /* Fill in the instance data */
 422
 423     Allocation->Size      = (UINT32) Size;
 424     Allocation->AllocType = AllocType;
 425     Allocation->Component = Component;
 426     Allocation->Line      = Line;
 427
 428     ACPI_STRNCPY (Allocation->Module, Module, ACPI_MAX_MODULE_NAME);
 429     Allocation->Module[ACPI_MAX_MODULE_NAME-1] = 0;
 430
 431     if (!Element)
 432     {
 433         /* Insert at list head */
 434
 435         if (MemList->ListHead)
 436         {
 437             ((ACPI_DEBUG_MEM_BLOCK *)(MemList->ListHead))->Previous = Allocation;
 438         }
 439
 440         Allocation->Next = MemList->ListHead;
 441         Allocation->Previous = NULL;
 442
 443         MemList->ListHead = Allocation;
 444     }
 445     else
 446     {
 447         /* Insert after element */
 448
 449         Allocation->Next = Element->Next;
 450         Allocation->Previous = Element;
 451
 452         if (Element->Next)
 453         {
 454             (Element->Next)->Previous = Allocation;
 455         }
 456
 457         Element->Next = Allocation;
 458     }
 459
 460
 461 UnlockAndExit:
 462     Status = AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
 463     return_ACPI_STATUS (Status);
 464 }
 465
 466
 467 /*******************************************************************************
 468  *
 469  * FUNCTION:    AcpiUtRemoveAllocation
 470  *
 471  * PARAMETERS:  Allocation          - Address of allocated memory
 472  *              Component           - Component type of caller
 473  *              Module              - Source file name of caller
 474  *              Line                - Line number of caller
 475  *
 476  * RETURN:      Status
 477  *
 478  * DESCRIPTION: Deletes an element from the global allocation tracking list.
 479  *
 480  ******************************************************************************/
 481
 482 static ACPI_STATUS
 483 AcpiUtRemoveAllocation (
 484     ACPI_DEBUG_MEM_BLOCK    *Allocation,
 485     UINT32                  Component,
 486     const char              *Module,
 487     UINT32                  Line)
 488 {
 489     ACPI_MEMORY_LIST        *MemList;
 490     ACPI_STATUS             Status;
 491
 492
 493     ACPI_FUNCTION_NAME (UtRemoveAllocation);
 494
 495
 496     if (AcpiGbl_DisableMemTracking)
 497     {
 498         return (AE_OK);
 499     }
 500
 501     MemList = AcpiGbl_GlobalList;
 502     if (NULL == MemList->ListHead)
 503     {
 504         /* No allocations! */
 505
 506         ACPI_ERROR ((Module, Line,
 507             "Empty allocation list, nothing to free!"));
 508
 509         return (AE_OK);
 510     }
 511
 512     Status = AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
 513     if (ACPI_FAILURE (Status))
 514     {
 515         return (Status);
 516     }
 517
 518     /* Unlink */
 519
 520     if (Allocation->Previous)
 521     {
 522         (Allocation->Previous)->Next = Allocation->Next;
 523     }
 524     else
 525     {
 526         MemList->ListHead = Allocation->Next;
 527     }
 528
 529     if (Allocation->Next)
 530     {
 531         (Allocation->Next)->Previous = Allocation->Previous;
 532     }
 533
 534     ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n",
 535         &Allocation->UserSpace, Allocation->Size));
 536
 537     /* Mark the segment as deleted */
 538
 539     ACPI_MEMSET (&Allocation->UserSpace, 0xEA, Allocation->Size);
 540
 541     Status = AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
 542     return (Status);
 543 }
 544
 545
 546 /*******************************************************************************
 547  *
 548  * FUNCTION:    AcpiUtDumpAllocationInfo
 549  *
 550  * PARAMETERS:  None
 551  *
 552  * RETURN:      None
 553  *
 554  * DESCRIPTION: Print some info about the outstanding allocations.
 555  *
 556  ******************************************************************************/
 557
 558 void
 559 AcpiUtDumpAllocationInfo (
 560     void)
 561 {
 562 /*
 563     ACPI_MEMORY_LIST        *MemList;
 564 */
 565
 566     ACPI_FUNCTION_TRACE (UtDumpAllocationInfo);
 567
 568 /*
 569     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 570                     ("%30s: %4d (%3d Kb)\n", "Current allocations",
 571                     MemList->CurrentCount,
 572                     ROUND_UP_TO_1K (MemList->CurrentSize)));
 573
 574     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 575                     ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
 576                     MemList->MaxConcurrentCount,
 577                     ROUND_UP_TO_1K (MemList->MaxConcurrentSize)));
 578
 579
 580     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 581                     ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
 582                     RunningObjectCount,
 583                     ROUND_UP_TO_1K (RunningObjectSize)));
 584
 585     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 586                     ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
 587                     RunningAllocCount,
 588                     ROUND_UP_TO_1K (RunningAllocSize)));
 589
 590
 591     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 592                     ("%30s: %4d (%3d Kb)\n", "Current Nodes",
 593                     AcpiGbl_CurrentNodeCount,
 594                     ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize)));
 595
 596     ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 597                     ("%30s: %4d (%3d Kb)\n", "Max Nodes",
 598                     AcpiGbl_MaxConcurrentNodeCount,
 599                     ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount *
 600                         sizeof (ACPI_NAMESPACE_NODE)))));
 601 */
 602     return_VOID;
 603 }
 604
 605
 606 /*******************************************************************************
 607  *
 608  * FUNCTION:    AcpiUtDumpAllocations
 609  *
 610  * PARAMETERS:  Component           - Component(s) to dump info for.
 611  *              Module              - Module to dump info for. NULL means all.
 612  *
 613  * RETURN:      None
 614  *
 615  * DESCRIPTION: Print a list of all outstanding allocations.
 616  *
 617  ******************************************************************************/
 618
 619 void
 620 AcpiUtDumpAllocations (
 621     UINT32                  Component,
 622     const char              *Module)
 623 {
 624     ACPI_DEBUG_MEM_BLOCK    *Element;
 625     ACPI_DESCRIPTOR         *Descriptor;
 626     UINT32                  NumOutstanding = 0;
 627     UINT8                   DescriptorType;
 628
 629
 630     ACPI_FUNCTION_TRACE (UtDumpAllocations);
 631
 632
 633     if (AcpiGbl_DisableMemTracking)
 634     {
 635         return_VOID;
 636     }
 637
 638     /*
 639      * Walk the allocation list.
 640      */
 641     if (ACPI_FAILURE (AcpiUtAcquireMutex (ACPI_MTX_MEMORY)))
 642     {
 643         return_VOID;
 644     }
 645
 646     Element = AcpiGbl_GlobalList->ListHead;
 647     while (Element)
 648     {
 649         if ((Element->Component & Component) &&
 650             ((Module == NULL) || (0 == ACPI_STRCMP (Module, Element->Module))))
 651         {
 652             Descriptor = ACPI_CAST_PTR (ACPI_DESCRIPTOR, &Element->UserSpace);
 653
 654             if (Element->Size < sizeof (ACPI_COMMON_DESCRIPTOR))
 655             {
 656                 AcpiOsPrintf ("%p Length 0x%04X %9.9s-%u "
 657                     "[Not a Descriptor - too small]\n",
 658                     Descriptor, Element->Size, Element->Module,
 659                     Element->Line);
 660             }
 661             else
 662             {
 663                 /* Ignore allocated objects that are in a cache */
 664
 665                 if (ACPI_GET_DESCRIPTOR_TYPE (Descriptor) != ACPI_DESC_TYPE_CACHED)
 666                 {
 667                     AcpiOsPrintf ("%p Length 0x%04X %9.9s-%u [%s] ",
 668                         Descriptor, Element->Size, Element->Module,
 669                         Element->Line, AcpiUtGetDescriptorName (Descriptor));
 670
 671                     /* Validate the descriptor type using Type field and length */
 672
 673                     DescriptorType = 0; /* Not a valid descriptor type */
 674
 675                     switch (ACPI_GET_DESCRIPTOR_TYPE (Descriptor))
 676                     {
 677                     case ACPI_DESC_TYPE_OPERAND:
 678
 679                         if (Element->Size == sizeof (ACPI_OPERAND_OBJECT))
 680                         {
 681                             DescriptorType = ACPI_DESC_TYPE_OPERAND;
 682                         }
 683                         break;
 684
 685                     case ACPI_DESC_TYPE_PARSER:
 686
 687                         if (Element->Size == sizeof (ACPI_PARSE_OBJECT))
 688                         {
 689                             DescriptorType = ACPI_DESC_TYPE_PARSER;
 690                         }
 691                         break;
 692
 693                     case ACPI_DESC_TYPE_NAMED:
 694
 695                         if (Element->Size == sizeof (ACPI_NAMESPACE_NODE))
 696                         {
 697                             DescriptorType = ACPI_DESC_TYPE_NAMED;
 698                         }
 699                         break;
 700
 701                     default:
 702
 703                         break;
 704                     }
 705
 706                     /* Display additional info for the major descriptor types */
 707
 708                     switch (DescriptorType)
 709                     {
 710                     case ACPI_DESC_TYPE_OPERAND:
 711
 712                         AcpiOsPrintf ("%12.12s  RefCount 0x%04X\n",
 713                             AcpiUtGetTypeName (Descriptor->Object.Common.Type),
 714                             Descriptor->Object.Common.ReferenceCount);
 715                         break;
 716
 717                     case ACPI_DESC_TYPE_PARSER:
 718
 719                         AcpiOsPrintf ("AmlOpcode 0x%04hX\n",
 720                             Descriptor->Op.Asl.AmlOpcode);
 721                         break;
 722
 723                     case ACPI_DESC_TYPE_NAMED:
 724
 725                         AcpiOsPrintf ("%4.4s\n",
 726                             AcpiUtGetNodeName (&Descriptor->Node));
 727                         break;
 728
 729                     default:
 730
 731                         AcpiOsPrintf ( "\n");
 732                         break;
 733                     }
 734                 }
 735             }
 736
 737             NumOutstanding++;
 738         }
 739
 740         Element = Element->Next;
 741     }
 742
 743     (void) AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
 744
 745     /* Print summary */
 746
 747     if (!NumOutstanding)
 748     {
 749         ACPI_INFO ((AE_INFO, "No outstanding allocations"));
 750     }
 751     else
 752     {
 753         ACPI_ERROR ((AE_INFO, "%u(0x%X) Outstanding allocations",
 754             NumOutstanding, NumOutstanding));
 755     }
 756
 757     return_VOID;
 758 }
 759
 760 #endif  /* ACPI_DBG_TRACK_ALLOCATIONS */