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