drivers/acpi/acpica/uttrack.c

   1 /******************************************************************************
   2  *
   3  * Module Name: uttrack - Memory allocation tracking routines (debug only)
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2016, 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. acpi_ut_allocate and acpi_ut_allocate_zeroed call
  51  * acpi_ut_track_allocation to add an element to the list; deletion
  52  * occurs in the body of acpi_ut_free.
  53  */
  54
  55 #include <acpi/acpi.h>
  56 #include "accommon.h"
  57
  58 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
  59
  60 #define _COMPONENT          ACPI_UTILITIES
  61 ACPI_MODULE_NAME("uttrack")
  62
  63 /* Local prototypes */
  64 static struct acpi_debug_mem_block *acpi_ut_find_allocation(struct
  65                                                             acpi_debug_mem_block
  66                                                             *allocation);
  67
  68 static acpi_status
  69 acpi_ut_track_allocation(struct acpi_debug_mem_block *address,
  70                          acpi_size size,
  71                          u8 alloc_type,
  72                          u32 component, const char *module, u32 line);
  73
  74 static acpi_status
  75 acpi_ut_remove_allocation(struct acpi_debug_mem_block *address,
  76                           u32 component, const char *module, u32 line);
  77
  78 /*******************************************************************************
  79  *
  80  * FUNCTION:    acpi_ut_create_list
  81  *
  82  * PARAMETERS:  cache_name      - Ascii name for the cache
  83  *              object_size     - Size of each cached object
  84  *              return_cache    - Where the new cache object is returned
  85  *
  86  * RETURN:      Status
  87  *
  88  * DESCRIPTION: Create a local memory list for tracking purposed
  89  *
  90  ******************************************************************************/
  91
  92 acpi_status
  93 acpi_ut_create_list(const char *list_name,
  94                     u16 object_size, struct acpi_memory_list **return_cache)
  95 {
  96         struct acpi_memory_list *cache;
  97
  98         cache = acpi_os_allocate_zeroed(sizeof(struct acpi_memory_list));
  99         if (!cache) {
 100                 return (AE_NO_MEMORY);
 101         }
 102
 103         cache->list_name = list_name;
 104         cache->object_size = object_size;
 105
 106         *return_cache = cache;
 107         return (AE_OK);
 108 }
 109
 110 /*******************************************************************************
 111  *
 112  * FUNCTION:    acpi_ut_allocate_and_track
 113  *
 114  * PARAMETERS:  size                - Size of the allocation
 115  *              component           - Component type of caller
 116  *              module              - Source file name of caller
 117  *              line                - Line number of caller
 118  *
 119  * RETURN:      Address of the allocated memory on success, NULL on failure.
 120  *
 121  * DESCRIPTION: The subsystem's equivalent of malloc.
 122  *
 123  ******************************************************************************/
 124
 125 void *acpi_ut_allocate_and_track(acpi_size size,
 126                                  u32 component, const char *module, u32 line)
 127 {
 128         struct acpi_debug_mem_block *allocation;
 129         acpi_status status;
 130
 131         /* Check for an inadvertent size of zero bytes */
 132
 133         if (!size) {
 134                 ACPI_WARNING((module, line,
 135                               "Attempt to allocate zero bytes, allocating 1 byte"));
 136                 size = 1;
 137         }
 138
 139         allocation =
 140             acpi_os_allocate(size + sizeof(struct acpi_debug_mem_header));
 141         if (!allocation) {
 142
 143                 /* Report allocation error */
 144
 145                 ACPI_WARNING((module, line,
 146                               "Could not allocate size %u", (u32)size));
 147
 148                 return (NULL);
 149         }
 150
 151         status =
 152             acpi_ut_track_allocation(allocation, size, ACPI_MEM_MALLOC,
 153                                      component, module, line);
 154         if (ACPI_FAILURE(status)) {
 155                 acpi_os_free(allocation);
 156                 return (NULL);
 157         }
 158
 159         acpi_gbl_global_list->total_allocated++;
 160         acpi_gbl_global_list->total_size += (u32)size;
 161         acpi_gbl_global_list->current_total_size += (u32)size;
 162
 163         if (acpi_gbl_global_list->current_total_size >
 164             acpi_gbl_global_list->max_occupied) {
 165                 acpi_gbl_global_list->max_occupied =
 166                     acpi_gbl_global_list->current_total_size;
 167         }
 168
 169         return ((void *)&allocation->user_space);
 170 }
 171
 172 /*******************************************************************************
 173  *
 174  * FUNCTION:    acpi_ut_allocate_zeroed_and_track
 175  *
 176  * PARAMETERS:  size                - Size of the allocation
 177  *              component           - Component type of caller
 178  *              module              - Source file name of caller
 179  *              line                - Line number of caller
 180  *
 181  * RETURN:      Address of the allocated memory on success, NULL on failure.
 182  *
 183  * DESCRIPTION: Subsystem equivalent of calloc.
 184  *
 185  ******************************************************************************/
 186
 187 void *acpi_ut_allocate_zeroed_and_track(acpi_size size,
 188                                         u32 component,
 189                                         const char *module, u32 line)
 190 {
 191         struct acpi_debug_mem_block *allocation;
 192         acpi_status status;
 193
 194         /* Check for an inadvertent size of zero bytes */
 195
 196         if (!size) {
 197                 ACPI_WARNING((module, line,
 198                               "Attempt to allocate zero bytes, allocating 1 byte"));
 199                 size = 1;
 200         }
 201
 202         allocation =
 203             acpi_os_allocate_zeroed(size +
 204                                     sizeof(struct acpi_debug_mem_header));
 205         if (!allocation) {
 206
 207                 /* Report allocation error */
 208
 209                 ACPI_ERROR((module, line,
 210                             "Could not allocate size %u", (u32)size));
 211                 return (NULL);
 212         }
 213
 214         status = acpi_ut_track_allocation(allocation, size,
 215                                           ACPI_MEM_CALLOC, component, module,
 216                                           line);
 217         if (ACPI_FAILURE(status)) {
 218                 acpi_os_free(allocation);
 219                 return (NULL);
 220         }
 221
 222         acpi_gbl_global_list->total_allocated++;
 223         acpi_gbl_global_list->total_size += (u32)size;
 224         acpi_gbl_global_list->current_total_size += (u32)size;
 225
 226         if (acpi_gbl_global_list->current_total_size >
 227             acpi_gbl_global_list->max_occupied) {
 228                 acpi_gbl_global_list->max_occupied =
 229                     acpi_gbl_global_list->current_total_size;
 230         }
 231
 232         return ((void *)&allocation->user_space);
 233 }
 234
 235 /*******************************************************************************
 236  *
 237  * FUNCTION:    acpi_ut_free_and_track
 238  *
 239  * PARAMETERS:  allocation          - Address of the memory to deallocate
 240  *              component           - Component type of caller
 241  *              module              - Source file name of caller
 242  *              line                - Line number of caller
 243  *
 244  * RETURN:      None
 245  *
 246  * DESCRIPTION: Frees the memory at Allocation
 247  *
 248  ******************************************************************************/
 249
 250 void
 251 acpi_ut_free_and_track(void *allocation,
 252                        u32 component, const char *module, u32 line)
 253 {
 254         struct acpi_debug_mem_block *debug_block;
 255         acpi_status status;
 256
 257         ACPI_FUNCTION_TRACE_PTR(ut_free, allocation);
 258
 259         if (NULL == allocation) {
 260                 ACPI_ERROR((module, line, "Attempt to delete a NULL address"));
 261
 262                 return_VOID;
 263         }
 264
 265         debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block,
 266                                     (((char *)allocation) -
 267                                      sizeof(struct acpi_debug_mem_header)));
 268
 269         acpi_gbl_global_list->total_freed++;
 270         acpi_gbl_global_list->current_total_size -= debug_block->size;
 271
 272         status =
 273             acpi_ut_remove_allocation(debug_block, component, module, line);
 274         if (ACPI_FAILURE(status)) {
 275                 ACPI_EXCEPTION((AE_INFO, status, "Could not free memory"));
 276         }
 277
 278         acpi_os_free(debug_block);
 279         ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed (block %p)\n",
 280                           allocation, debug_block));
 281         return_VOID;
 282 }
 283
 284 /*******************************************************************************
 285  *
 286  * FUNCTION:    acpi_ut_find_allocation
 287  *
 288  * PARAMETERS:  allocation              - Address of allocated memory
 289  *
 290  * RETURN:      Three cases:
 291  *              1) List is empty, NULL is returned.
 292  *              2) Element was found. Returns Allocation parameter.
 293  *              3) Element was not found. Returns position where it should be
 294  *                  inserted into the list.
 295  *
 296  * DESCRIPTION: Searches for an element in the global allocation tracking list.
 297  *              If the element is not found, returns the location within the
 298  *              list where the element should be inserted.
 299  *
 300  *              Note: The list is ordered by larger-to-smaller addresses.
 301  *
 302  *              This global list is used to detect memory leaks in ACPICA as
 303  *              well as other issues such as an attempt to release the same
 304  *              internal object more than once. Although expensive as far
 305  *              as cpu time, this list is much more helpful for finding these
 306  *              types of issues than using memory leak detectors outside of
 307  *              the ACPICA code.
 308  *
 309  ******************************************************************************/
 310
 311 static struct acpi_debug_mem_block *acpi_ut_find_allocation(struct
 312                                                             acpi_debug_mem_block
 313                                                             *allocation)
 314 {
 315         struct acpi_debug_mem_block *element;
 316
 317         element = acpi_gbl_global_list->list_head;
 318         if (!element) {
 319                 return (NULL);
 320         }
 321
 322         /*
 323          * Search for the address.
 324          *
 325          * Note: List is ordered by larger-to-smaller addresses, on the
 326          * assumption that a new allocation usually has a larger address
 327          * than previous allocations.
 328          */
 329         while (element > allocation) {
 330
 331                 /* Check for end-of-list */
 332
 333                 if (!element->next) {
 334                         return (element);
 335                 }
 336
 337                 element = element->next;
 338         }
 339
 340         if (element == allocation) {
 341                 return (element);
 342         }
 343
 344         return (element->previous);
 345 }
 346
 347 /*******************************************************************************
 348  *
 349  * FUNCTION:    acpi_ut_track_allocation
 350  *
 351  * PARAMETERS:  allocation          - Address of allocated memory
 352  *              size                - Size of the allocation
 353  *              alloc_type          - MEM_MALLOC or MEM_CALLOC
 354  *              component           - Component type of caller
 355  *              module              - Source file name of caller
 356  *              line                - Line number of caller
 357  *
 358  * RETURN:      Status
 359  *
 360  * DESCRIPTION: Inserts an element into the global allocation tracking list.
 361  *
 362  ******************************************************************************/
 363
 364 static acpi_status
 365 acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation,
 366                          acpi_size size,
 367                          u8 alloc_type,
 368                          u32 component, const char *module, u32 line)
 369 {
 370         struct acpi_memory_list *mem_list;
 371         struct acpi_debug_mem_block *element;
 372         acpi_status status = AE_OK;
 373
 374         ACPI_FUNCTION_TRACE_PTR(ut_track_allocation, allocation);
 375
 376         if (acpi_gbl_disable_mem_tracking) {
 377                 return_ACPI_STATUS(AE_OK);
 378         }
 379
 380         mem_list = acpi_gbl_global_list;
 381         status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
 382         if (ACPI_FAILURE(status)) {
 383                 return_ACPI_STATUS(status);
 384         }
 385
 386         /*
 387          * Search the global list for this address to make sure it is not
 388          * already present. This will catch several kinds of problems.
 389          */
 390         element = acpi_ut_find_allocation(allocation);
 391         if (element == allocation) {
 392                 ACPI_ERROR((AE_INFO,
 393                             "UtTrackAllocation: Allocation (%p) already present in global list!",
 394                             allocation));
 395                 goto unlock_and_exit;
 396         }
 397
 398         /* Fill in the instance data */
 399
 400         allocation->size = (u32)size;
 401         allocation->alloc_type = alloc_type;
 402         allocation->component = component;
 403         allocation->line = line;
 404
 405         strncpy(allocation->module, module, ACPI_MAX_MODULE_NAME);
 406         allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0;
 407
 408         if (!element) {
 409
 410                 /* Insert at list head */
 411
 412                 if (mem_list->list_head) {
 413                         ((struct acpi_debug_mem_block *)(mem_list->list_head))->
 414                             previous = allocation;
 415                 }
 416
 417                 allocation->next = mem_list->list_head;
 418                 allocation->previous = NULL;
 419
 420                 mem_list->list_head = allocation;
 421         } else {
 422                 /* Insert after element */
 423
 424                 allocation->next = element->next;
 425                 allocation->previous = element;
 426
 427                 if (element->next) {
 428                         (element->next)->previous = allocation;
 429                 }
 430
 431                 element->next = allocation;
 432         }
 433
 434 unlock_and_exit:
 435         status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 436         return_ACPI_STATUS(status);
 437 }
 438
 439 /*******************************************************************************
 440  *
 441  * FUNCTION:    acpi_ut_remove_allocation
 442  *
 443  * PARAMETERS:  allocation          - Address of allocated memory
 444  *              component           - Component type of caller
 445  *              module              - Source file name of caller
 446  *              line                - Line number of caller
 447  *
 448  * RETURN:      Status
 449  *
 450  * DESCRIPTION: Deletes an element from the global allocation tracking list.
 451  *
 452  ******************************************************************************/
 453
 454 static acpi_status
 455 acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
 456                           u32 component, const char *module, u32 line)
 457 {
 458         struct acpi_memory_list *mem_list;
 459         acpi_status status;
 460
 461         ACPI_FUNCTION_NAME(ut_remove_allocation);
 462
 463         if (acpi_gbl_disable_mem_tracking) {
 464                 return (AE_OK);
 465         }
 466
 467         mem_list = acpi_gbl_global_list;
 468         if (NULL == mem_list->list_head) {
 469
 470                 /* No allocations! */
 471
 472                 ACPI_ERROR((module, line,
 473                             "Empty allocation list, nothing to free!"));
 474
 475                 return (AE_OK);
 476         }
 477
 478         status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
 479         if (ACPI_FAILURE(status)) {
 480                 return (status);
 481         }
 482
 483         /* Unlink */
 484
 485         if (allocation->previous) {
 486                 (allocation->previous)->next = allocation->next;
 487         } else {
 488                 mem_list->list_head = allocation->next;
 489         }
 490
 491         if (allocation->next) {
 492                 (allocation->next)->previous = allocation->previous;
 493         }
 494
 495         ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n",
 496                           &allocation->user_space, allocation->size));
 497
 498         /* Mark the segment as deleted */
 499
 500         memset(&allocation->user_space, 0xEA, allocation->size);
 501
 502         status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 503         return (status);
 504 }
 505
 506 /*******************************************************************************
 507  *
 508  * FUNCTION:    acpi_ut_dump_allocation_info
 509  *
 510  * PARAMETERS:  None
 511  *
 512  * RETURN:      None
 513  *
 514  * DESCRIPTION: Print some info about the outstanding allocations.
 515  *
 516  ******************************************************************************/
 517
 518 void acpi_ut_dump_allocation_info(void)
 519 {
 520 /*
 521         struct acpi_memory_list         *mem_list;
 522 */
 523
 524         ACPI_FUNCTION_TRACE(ut_dump_allocation_info);
 525
 526 /*
 527         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 528                 ("%30s: %4d (%3d Kb)\n", "Current allocations",
 529                 mem_list->current_count,
 530                 ROUND_UP_TO_1K (mem_list->current_size)));
 531
 532         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 533                 ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
 534                 mem_list->max_concurrent_count,
 535                 ROUND_UP_TO_1K (mem_list->max_concurrent_size)));
 536
 537         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 538                 ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
 539                 running_object_count,
 540                 ROUND_UP_TO_1K (running_object_size)));
 541
 542         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 543                 ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
 544                 running_alloc_count,
 545                 ROUND_UP_TO_1K (running_alloc_size)));
 546
 547         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 548                 ("%30s: %4d (%3d Kb)\n", "Current Nodes",
 549                 acpi_gbl_current_node_count,
 550                 ROUND_UP_TO_1K (acpi_gbl_current_node_size)));
 551
 552         ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
 553                 ("%30s: %4d (%3d Kb)\n", "Max Nodes",
 554                 acpi_gbl_max_concurrent_node_count,
 555                 ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count *
 556                         sizeof (struct acpi_namespace_node)))));
 557 */
 558         return_VOID;
 559 }
 560
 561 /*******************************************************************************
 562  *
 563  * FUNCTION:    acpi_ut_dump_allocations
 564  *
 565  * PARAMETERS:  component           - Component(s) to dump info for.
 566  *              module              - Module to dump info for. NULL means all.
 567  *
 568  * RETURN:      None
 569  *
 570  * DESCRIPTION: Print a list of all outstanding allocations.
 571  *
 572  ******************************************************************************/
 573
 574 void acpi_ut_dump_allocations(u32 component, const char *module)
 575 {
 576         struct acpi_debug_mem_block *element;
 577         union acpi_descriptor *descriptor;
 578         u32 num_outstanding = 0;
 579         u8 descriptor_type;
 580
 581         ACPI_FUNCTION_TRACE(ut_dump_allocations);
 582
 583         if (acpi_gbl_disable_mem_tracking) {
 584                 return_VOID;
 585         }
 586
 587         /*
 588          * Walk the allocation list.
 589          */
 590         if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) {
 591                 return_VOID;
 592         }
 593
 594         element = acpi_gbl_global_list->list_head;
 595         while (element) {
 596                 if ((element->component & component) &&
 597                     ((module == NULL)
 598                      || (0 == strcmp(module, element->module)))) {
 599                         descriptor =
 600                             ACPI_CAST_PTR(union acpi_descriptor,
 601                                           &element->user_space);
 602
 603                         if (element->size <
 604                             sizeof(struct acpi_common_descriptor)) {
 605                                 acpi_os_printf("%p Length 0x%04X %9.9s-%u "
 606                                                "[Not a Descriptor - too small]\n",
 607                                                descriptor, element->size,
 608                                                element->module, element->line);
 609                         } else {
 610                                 /* Ignore allocated objects that are in a cache */
 611
 612                                 if (ACPI_GET_DESCRIPTOR_TYPE(descriptor) !=
 613                                     ACPI_DESC_TYPE_CACHED) {
 614                                         acpi_os_printf
 615                                             ("%p Length 0x%04X %9.9s-%u [%s] ",
 616                                              descriptor, element->size,
 617                                              element->module, element->line,
 618                                              acpi_ut_get_descriptor_name
 619                                              (descriptor));
 620
 621                                         /* Validate the descriptor type using Type field and length */
 622
 623                                         descriptor_type = 0;    /* Not a valid descriptor type */
 624
 625                                         switch (ACPI_GET_DESCRIPTOR_TYPE
 626                                                 (descriptor)) {
 627                                         case ACPI_DESC_TYPE_OPERAND:
 628
 629                                                 if (element->size ==
 630                                                     sizeof(union
 631                                                            acpi_operand_object))
 632                                                 {
 633                                                         descriptor_type =
 634                                                             ACPI_DESC_TYPE_OPERAND;
 635                                                 }
 636                                                 break;
 637
 638                                         case ACPI_DESC_TYPE_PARSER:
 639
 640                                                 if (element->size ==
 641                                                     sizeof(union
 642                                                            acpi_parse_object)) {
 643                                                         descriptor_type =
 644                                                             ACPI_DESC_TYPE_PARSER;
 645                                                 }
 646                                                 break;
 647
 648                                         case ACPI_DESC_TYPE_NAMED:
 649
 650                                                 if (element->size ==
 651                                                     sizeof(struct
 652                                                            acpi_namespace_node))
 653                                                 {
 654                                                         descriptor_type =
 655                                                             ACPI_DESC_TYPE_NAMED;
 656                                                 }
 657                                                 break;
 658
 659                                         default:
 660
 661                                                 break;
 662                                         }
 663
 664                                         /* Display additional info for the major descriptor types */
 665
 666                                         switch (descriptor_type) {
 667                                         case ACPI_DESC_TYPE_OPERAND:
 668
 669                                                 acpi_os_printf
 670                                                     ("%12.12s RefCount 0x%04X\n",
 671                                                      acpi_ut_get_type_name
 672                                                      (descriptor->object.common.
 673                                                       type),
 674                                                      descriptor->object.common.
 675                                                      reference_count);
 676                                                 break;
 677
 678                                         case ACPI_DESC_TYPE_PARSER:
 679
 680                                                 acpi_os_printf
 681                                                     ("AmlOpcode 0x%04hX\n",
 682                                                      descriptor->op.asl.
 683                                                      aml_opcode);
 684                                                 break;
 685
 686                                         case ACPI_DESC_TYPE_NAMED:
 687
 688                                                 acpi_os_printf("%4.4s\n",
 689                                                                acpi_ut_get_node_name
 690                                                                (&descriptor->
 691                                                                 node));
 692                                                 break;
 693
 694                                         default:
 695
 696                                                 acpi_os_printf("\n");
 697                                                 break;
 698                                         }
 699                                 }
 700                         }
 701
 702                         num_outstanding++;
 703                 }
 704
 705                 element = element->next;
 706         }
 707
 708         (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 709
 710         /* Print summary */
 711
 712         if (!num_outstanding) {
 713                 ACPI_INFO(("No outstanding allocations"));
 714         } else {
 715                 ACPI_ERROR((AE_INFO, "%u(0x%X) Outstanding allocations",
 716                             num_outstanding, num_outstanding));
 717         }
 718
 719         return_VOID;
 720 }
 721
 722 #endif                          /* ACPI_DBG_TRACK_ALLOCATIONS */