1 /******************************************************************************
2 *
3 * Module Name: uttrack - Memory allocation tracking routines (debug only)
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************
115 *
116 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
133 *
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 *
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
149 *
150 *****************************************************************************/
151
152 /*
153 * These procedures are used for tracking memory leaks in the subsystem, and
154 * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set.
155 *
156 * Each memory allocation is tracked via a doubly linked list. Each
157 * element contains the caller's component, module name, function name, and
158 * line number. AcpiUtAllocate and AcpiUtAllocateZeroed call
159 * AcpiUtTrackAllocation to add an element to the list; deletion
160 * occurs in the body of AcpiUtFree.
161 */
162
163 #include "acpi.h"
164 #include "accommon.h"
165
166 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
167
168 #define _COMPONENT ACPI_UTILITIES
169 ACPI_MODULE_NAME ("uttrack")
170
171
172 /* Local prototypes */
173
174 static ACPI_DEBUG_MEM_BLOCK *
175 AcpiUtFindAllocation (
176 ACPI_DEBUG_MEM_BLOCK *Allocation);
177
178 static ACPI_STATUS
179 AcpiUtTrackAllocation (
180 ACPI_DEBUG_MEM_BLOCK *Address,
181 ACPI_SIZE Size,
182 UINT8 AllocType,
183 UINT32 Component,
184 const char *Module,
185 UINT32 Line);
186
187 static ACPI_STATUS
188 AcpiUtRemoveAllocation (
189 ACPI_DEBUG_MEM_BLOCK *Address,
190 UINT32 Component,
191 const char *Module,
192 UINT32 Line);
193
194
195 /*******************************************************************************
196 *
197 * FUNCTION: AcpiUtCreateList
198 *
199 * PARAMETERS: CacheName - Ascii name for the cache
200 * ObjectSize - Size of each cached object
201 * ReturnCache - Where the new cache object is returned
202 *
203 * RETURN: Status
204 *
205 * DESCRIPTION: Create a local memory list for tracking purposed
206 *
207 ******************************************************************************/
208
209 ACPI_STATUS
AcpiUtCreateList(const char * ListName,UINT16 ObjectSize,ACPI_MEMORY_LIST ** ReturnCache)210 AcpiUtCreateList (
211 const char *ListName,
212 UINT16 ObjectSize,
213 ACPI_MEMORY_LIST **ReturnCache)
214 {
215 ACPI_MEMORY_LIST *Cache;
216
217
218 Cache = AcpiOsAllocateZeroed (sizeof (ACPI_MEMORY_LIST));
219 if (!Cache)
220 {
221 return (AE_NO_MEMORY);
222 }
223
224 Cache->ListName = ListName;
225 Cache->ObjectSize = ObjectSize;
226
227 *ReturnCache = Cache;
228 return (AE_OK);
229 }
230
231
232 /*******************************************************************************
233 *
234 * FUNCTION: AcpiUtAllocateAndTrack
235 *
236 * PARAMETERS: Size - Size of the allocation
237 * Component - Component type of caller
238 * Module - Source file name of caller
239 * Line - Line number of caller
240 *
241 * RETURN: Address of the allocated memory on success, NULL on failure.
242 *
243 * DESCRIPTION: The subsystem's equivalent of malloc.
244 *
245 ******************************************************************************/
246
247 void *
AcpiUtAllocateAndTrack(ACPI_SIZE Size,UINT32 Component,const char * Module,UINT32 Line)248 AcpiUtAllocateAndTrack (
249 ACPI_SIZE Size,
250 UINT32 Component,
251 const char *Module,
252 UINT32 Line)
253 {
254 ACPI_DEBUG_MEM_BLOCK *Allocation;
255 ACPI_STATUS Status;
256
257
258 /* Check for an inadvertent size of zero bytes */
259
260 if (!Size)
261 {
262 ACPI_WARNING ((Module, Line,
263 "Attempt to allocate zero bytes, allocating 1 byte"));
264 Size = 1;
265 }
266
267 Allocation = AcpiOsAllocate (Size + sizeof (ACPI_DEBUG_MEM_HEADER));
268 if (!Allocation)
269 {
270 /* Report allocation error */
271
272 ACPI_WARNING ((Module, Line,
273 "Could not allocate size %u", (UINT32) Size));
274
275 return (NULL);
276 }
277
278 Status = AcpiUtTrackAllocation (
279 Allocation, Size, ACPI_MEM_MALLOC, Component, Module, Line);
280 if (ACPI_FAILURE (Status))
281 {
282 AcpiOsFree (Allocation);
283 return (NULL);
284 }
285
286 AcpiGbl_GlobalList->TotalAllocated++;
287 AcpiGbl_GlobalList->TotalSize += (UINT32) Size;
288 AcpiGbl_GlobalList->CurrentTotalSize += (UINT32) Size;
289
290 if (AcpiGbl_GlobalList->CurrentTotalSize >
291 AcpiGbl_GlobalList->MaxOccupied)
292 {
293 AcpiGbl_GlobalList->MaxOccupied =
294 AcpiGbl_GlobalList->CurrentTotalSize;
295 }
296
297 return ((void *) &Allocation->UserSpace);
298 }
299
300
301 /*******************************************************************************
302 *
303 * FUNCTION: AcpiUtAllocateZeroedAndTrack
304 *
305 * PARAMETERS: Size - Size of the allocation
306 * Component - Component type of caller
307 * Module - Source file name of caller
308 * Line - Line number of caller
309 *
310 * RETURN: Address of the allocated memory on success, NULL on failure.
311 *
312 * DESCRIPTION: Subsystem equivalent of calloc.
313 *
314 ******************************************************************************/
315
316 void *
AcpiUtAllocateZeroedAndTrack(ACPI_SIZE Size,UINT32 Component,const char * Module,UINT32 Line)317 AcpiUtAllocateZeroedAndTrack (
318 ACPI_SIZE Size,
319 UINT32 Component,
320 const char *Module,
321 UINT32 Line)
322 {
323 ACPI_DEBUG_MEM_BLOCK *Allocation;
324 ACPI_STATUS Status;
325
326
327 /* Check for an inadvertent size of zero bytes */
328
329 if (!Size)
330 {
331 ACPI_WARNING ((Module, Line,
332 "Attempt to allocate zero bytes, allocating 1 byte"));
333 Size = 1;
334 }
335
336 Allocation = AcpiOsAllocateZeroed (
337 Size + sizeof (ACPI_DEBUG_MEM_HEADER));
338 if (!Allocation)
339 {
340 /* Report allocation error */
341
342 ACPI_ERROR ((Module, Line,
343 "Could not allocate size %u", (UINT32) Size));
344 return (NULL);
345 }
346
347 Status = AcpiUtTrackAllocation (Allocation, Size,
348 ACPI_MEM_CALLOC, Component, Module, Line);
349 if (ACPI_FAILURE (Status))
350 {
351 AcpiOsFree (Allocation);
352 return (NULL);
353 }
354
355 AcpiGbl_GlobalList->TotalAllocated++;
356 AcpiGbl_GlobalList->TotalSize += (UINT32) Size;
357 AcpiGbl_GlobalList->CurrentTotalSize += (UINT32) Size;
358
359 if (AcpiGbl_GlobalList->CurrentTotalSize >
360 AcpiGbl_GlobalList->MaxOccupied)
361 {
362 AcpiGbl_GlobalList->MaxOccupied =
363 AcpiGbl_GlobalList->CurrentTotalSize;
364 }
365
366 return ((void *) &Allocation->UserSpace);
367 }
368
369
370 /*******************************************************************************
371 *
372 * FUNCTION: AcpiUtFreeAndTrack
373 *
374 * PARAMETERS: Allocation - Address of the memory to deallocate
375 * Component - Component type of caller
376 * Module - Source file name of caller
377 * Line - Line number of caller
378 *
379 * RETURN: None
380 *
381 * DESCRIPTION: Frees the memory at Allocation
382 *
383 ******************************************************************************/
384
385 void
AcpiUtFreeAndTrack(void * Allocation,UINT32 Component,const char * Module,UINT32 Line)386 AcpiUtFreeAndTrack (
387 void *Allocation,
388 UINT32 Component,
389 const char *Module,
390 UINT32 Line)
391 {
392 ACPI_DEBUG_MEM_BLOCK *DebugBlock;
393 ACPI_STATUS Status;
394
395
396 ACPI_FUNCTION_TRACE_PTR (UtFree, Allocation);
397
398
399 if (NULL == Allocation)
400 {
401 ACPI_ERROR ((Module, Line,
402 "Attempt to delete a NULL address"));
403
404 return_VOID;
405 }
406
407 DebugBlock = ACPI_CAST_PTR (ACPI_DEBUG_MEM_BLOCK,
408 (((char *) Allocation) - sizeof (ACPI_DEBUG_MEM_HEADER)));
409
410 AcpiGbl_GlobalList->TotalFreed++;
411 AcpiGbl_GlobalList->CurrentTotalSize -= DebugBlock->Size;
412
413 Status = AcpiUtRemoveAllocation (DebugBlock, Component, Module, Line);
414 if (ACPI_FAILURE (Status))
415 {
416 ACPI_EXCEPTION ((AE_INFO, Status, "Could not free memory"));
417 }
418
419 AcpiOsFree (DebugBlock);
420 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p freed (block %p)\n",
421 Allocation, DebugBlock));
422 return_VOID;
423 }
424
425
426 /*******************************************************************************
427 *
428 * FUNCTION: AcpiUtFindAllocation
429 *
430 * PARAMETERS: Allocation - Address of allocated memory
431 *
432 * RETURN: Three cases:
433 * 1) List is empty, NULL is returned.
434 * 2) Element was found. Returns Allocation parameter.
435 * 3) Element was not found. Returns position where it should be
436 * inserted into the list.
437 *
438 * DESCRIPTION: Searches for an element in the global allocation tracking list.
439 * If the element is not found, returns the location within the
440 * list where the element should be inserted.
441 *
442 * Note: The list is ordered by larger-to-smaller addresses.
443 *
444 * This global list is used to detect memory leaks in ACPICA as
445 * well as other issues such as an attempt to release the same
446 * internal object more than once. Although expensive as far
447 * as cpu time, this list is much more helpful for finding these
448 * types of issues than using memory leak detectors outside of
449 * the ACPICA code.
450 *
451 ******************************************************************************/
452
453 static ACPI_DEBUG_MEM_BLOCK *
AcpiUtFindAllocation(ACPI_DEBUG_MEM_BLOCK * Allocation)454 AcpiUtFindAllocation (
455 ACPI_DEBUG_MEM_BLOCK *Allocation)
456 {
457 ACPI_DEBUG_MEM_BLOCK *Element;
458
459
460 Element = AcpiGbl_GlobalList->ListHead;
461 if (!Element)
462 {
463 return (NULL);
464 }
465
466 /*
467 * Search for the address.
468 *
469 * Note: List is ordered by larger-to-smaller addresses, on the
470 * assumption that a new allocation usually has a larger address
471 * than previous allocations.
472 */
473 while (Element > Allocation)
474 {
475 /* Check for end-of-list */
476
477 if (!Element->Next)
478 {
479 return (Element);
480 }
481
482 Element = Element->Next;
483 }
484
485 if (Element == Allocation)
486 {
487 return (Element);
488 }
489
490 return (Element->Previous);
491 }
492
493
494 /*******************************************************************************
495 *
496 * FUNCTION: AcpiUtTrackAllocation
497 *
498 * PARAMETERS: Allocation - Address of allocated memory
499 * Size - Size of the allocation
500 * AllocType - MEM_MALLOC or MEM_CALLOC
501 * Component - Component type of caller
502 * Module - Source file name of caller
503 * Line - Line number of caller
504 *
505 * RETURN: Status
506 *
507 * DESCRIPTION: Inserts an element into the global allocation tracking list.
508 *
509 ******************************************************************************/
510
511 static ACPI_STATUS
AcpiUtTrackAllocation(ACPI_DEBUG_MEM_BLOCK * Allocation,ACPI_SIZE Size,UINT8 AllocType,UINT32 Component,const char * Module,UINT32 Line)512 AcpiUtTrackAllocation (
513 ACPI_DEBUG_MEM_BLOCK *Allocation,
514 ACPI_SIZE Size,
515 UINT8 AllocType,
516 UINT32 Component,
517 const char *Module,
518 UINT32 Line)
519 {
520 ACPI_MEMORY_LIST *MemList;
521 ACPI_DEBUG_MEM_BLOCK *Element;
522 ACPI_STATUS Status = AE_OK;
523
524
525 ACPI_FUNCTION_TRACE_PTR (UtTrackAllocation, Allocation);
526
527
528 if (AcpiGbl_DisableMemTracking)
529 {
530 return_ACPI_STATUS (AE_OK);
531 }
532
533 MemList = AcpiGbl_GlobalList;
534 Status = AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
535 if (ACPI_FAILURE (Status))
536 {
537 return_ACPI_STATUS (Status);
538 }
539
540 /*
541 * Search the global list for this address to make sure it is not
542 * already present. This will catch several kinds of problems.
543 */
544 Element = AcpiUtFindAllocation (Allocation);
545 if (Element == Allocation)
546 {
547 ACPI_ERROR ((AE_INFO,
548 "UtTrackAllocation: Allocation (%p) already present in global list!",
549 Allocation));
550 goto UnlockAndExit;
551 }
552
553 /* Fill in the instance data */
554
555 Allocation->Size = (UINT32) Size;
556 Allocation->AllocType = AllocType;
557 Allocation->Component = Component;
558 Allocation->Line = Line;
559
560 AcpiUtSafeStrncpy (Allocation->Module, (char *) Module, ACPI_MAX_MODULE_NAME);
561
562 if (!Element)
563 {
564 /* Insert at list head */
565
566 if (MemList->ListHead)
567 {
568 ((ACPI_DEBUG_MEM_BLOCK *)(MemList->ListHead))->Previous =
569 Allocation;
570 }
571
572 Allocation->Next = MemList->ListHead;
573 Allocation->Previous = NULL;
574
575 MemList->ListHead = Allocation;
576 }
577 else
578 {
579 /* Insert after element */
580
581 Allocation->Next = Element->Next;
582 Allocation->Previous = Element;
583
584 if (Element->Next)
585 {
586 (Element->Next)->Previous = Allocation;
587 }
588
589 Element->Next = Allocation;
590 }
591
592
593 UnlockAndExit:
594 Status = AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
595 return_ACPI_STATUS (Status);
596 }
597
598
599 /*******************************************************************************
600 *
601 * FUNCTION: AcpiUtRemoveAllocation
602 *
603 * PARAMETERS: Allocation - Address of allocated memory
604 * Component - Component type of caller
605 * Module - Source file name of caller
606 * Line - Line number of caller
607 *
608 * RETURN: Status
609 *
610 * DESCRIPTION: Deletes an element from the global allocation tracking list.
611 *
612 ******************************************************************************/
613
614 static ACPI_STATUS
AcpiUtRemoveAllocation(ACPI_DEBUG_MEM_BLOCK * Allocation,UINT32 Component,const char * Module,UINT32 Line)615 AcpiUtRemoveAllocation (
616 ACPI_DEBUG_MEM_BLOCK *Allocation,
617 UINT32 Component,
618 const char *Module,
619 UINT32 Line)
620 {
621 ACPI_MEMORY_LIST *MemList;
622 ACPI_STATUS Status;
623
624
625 ACPI_FUNCTION_NAME (UtRemoveAllocation);
626
627
628 if (AcpiGbl_DisableMemTracking)
629 {
630 return (AE_OK);
631 }
632
633 MemList = AcpiGbl_GlobalList;
634 if (NULL == MemList->ListHead)
635 {
636 /* No allocations! */
637
638 ACPI_ERROR ((Module, Line,
639 "Empty allocation list, nothing to free!"));
640
641 return (AE_OK);
642 }
643
644 Status = AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
645 if (ACPI_FAILURE (Status))
646 {
647 return (Status);
648 }
649
650 /* Unlink */
651
652 if (Allocation->Previous)
653 {
654 (Allocation->Previous)->Next = Allocation->Next;
655 }
656 else
657 {
658 MemList->ListHead = Allocation->Next;
659 }
660
661 if (Allocation->Next)
662 {
663 (Allocation->Next)->Previous = Allocation->Previous;
664 }
665
666 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n",
667 &Allocation->UserSpace, Allocation->Size));
668
669 /* Mark the segment as deleted */
670
671 memset (&Allocation->UserSpace, 0xEA, Allocation->Size);
672
673 Status = AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
674 return (Status);
675 }
676
677
678 /*******************************************************************************
679 *
680 * FUNCTION: AcpiUtDumpAllocationInfo
681 *
682 * PARAMETERS: None
683 *
684 * RETURN: None
685 *
686 * DESCRIPTION: Print some info about the outstanding allocations.
687 *
688 ******************************************************************************/
689
690 void
AcpiUtDumpAllocationInfo(void)691 AcpiUtDumpAllocationInfo (
692 void)
693 {
694 /*
695 ACPI_MEMORY_LIST *MemList;
696 */
697
698 ACPI_FUNCTION_TRACE (UtDumpAllocationInfo);
699
700 /*
701 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
702 ("%30s: %4d (%3d Kb)\n", "Current allocations",
703 MemList->CurrentCount,
704 ROUND_UP_TO_1K (MemList->CurrentSize)));
705
706 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
707 ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
708 MemList->MaxConcurrentCount,
709 ROUND_UP_TO_1K (MemList->MaxConcurrentSize)));
710
711
712 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
713 ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
714 RunningObjectCount,
715 ROUND_UP_TO_1K (RunningObjectSize)));
716
717 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
718 ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
719 RunningAllocCount,
720 ROUND_UP_TO_1K (RunningAllocSize)));
721
722
723 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
724 ("%30s: %4d (%3d Kb)\n", "Current Nodes",
725 AcpiGbl_CurrentNodeCount,
726 ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize)));
727
728 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
729 ("%30s: %4d (%3d Kb)\n", "Max Nodes",
730 AcpiGbl_MaxConcurrentNodeCount,
731 ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount *
732 sizeof (ACPI_NAMESPACE_NODE)))));
733 */
734 return_VOID;
735 }
736
737
738 /*******************************************************************************
739 *
740 * FUNCTION: AcpiUtDumpAllocations
741 *
742 * PARAMETERS: Component - Component(s) to dump info for.
743 * Module - Module to dump info for. NULL means all.
744 *
745 * RETURN: None
746 *
747 * DESCRIPTION: Print a list of all outstanding allocations.
748 *
749 ******************************************************************************/
750
751 void
AcpiUtDumpAllocations(UINT32 Component,const char * Module)752 AcpiUtDumpAllocations (
753 UINT32 Component,
754 const char *Module)
755 {
756 ACPI_DEBUG_MEM_BLOCK *Element;
757 ACPI_DESCRIPTOR *Descriptor;
758 UINT32 NumOutstanding = 0;
759 UINT8 DescriptorType;
760
761
762 ACPI_FUNCTION_TRACE (UtDumpAllocations);
763
764
765 if (AcpiGbl_DisableMemTracking)
766 {
767 return_VOID;
768 }
769
770 /*
771 * Walk the allocation list.
772 */
773 if (ACPI_FAILURE (AcpiUtAcquireMutex (ACPI_MTX_MEMORY)))
774 {
775 return_VOID;
776 }
777
778 if (!AcpiGbl_GlobalList)
779 {
780 goto Exit;
781 }
782
783 Element = AcpiGbl_GlobalList->ListHead;
784 while (Element)
785 {
786 if ((Element->Component & Component) &&
787 ((Module == NULL) || (0 == strcmp (Module, Element->Module))))
788 {
789 Descriptor = ACPI_CAST_PTR (
790 ACPI_DESCRIPTOR, &Element->UserSpace);
791
792 if (Element->Size < sizeof (ACPI_COMMON_DESCRIPTOR))
793 {
794 AcpiOsPrintf ("%p Length 0x%04X %9.9s-%4.4u "
795 "[Not a Descriptor - too small]\n",
796 Descriptor, Element->Size, Element->Module,
797 Element->Line);
798 }
799 else
800 {
801 /* Ignore allocated objects that are in a cache */
802
803 if (ACPI_GET_DESCRIPTOR_TYPE (Descriptor) !=
804 ACPI_DESC_TYPE_CACHED)
805 {
806 AcpiOsPrintf ("%p Length 0x%04X %9.9s-%4.4u [%s] ",
807 Descriptor, Element->Size, Element->Module,
808 Element->Line, AcpiUtGetDescriptorName (Descriptor));
809
810 /* Optional object hex dump */
811
812 if (AcpiGbl_VerboseLeakDump)
813 {
814 AcpiOsPrintf ("\n");
815 AcpiUtDumpBuffer ((UINT8 *) Descriptor, Element->Size,
816 DB_BYTE_DISPLAY, 0);
817 }
818
819 /* Validate the descriptor type using Type field and length */
820
821 DescriptorType = 0; /* Not a valid descriptor type */
822
823 switch (ACPI_GET_DESCRIPTOR_TYPE (Descriptor))
824 {
825 case ACPI_DESC_TYPE_OPERAND:
826
827 if (Element->Size == sizeof (ACPI_OPERAND_OBJECT))
828 {
829 DescriptorType = ACPI_DESC_TYPE_OPERAND;
830 }
831 break;
832
833 case ACPI_DESC_TYPE_PARSER:
834
835 if (Element->Size == sizeof (ACPI_PARSE_OBJECT))
836 {
837 DescriptorType = ACPI_DESC_TYPE_PARSER;
838 }
839 break;
840
841 case ACPI_DESC_TYPE_NAMED:
842
843 if (Element->Size == sizeof (ACPI_NAMESPACE_NODE))
844 {
845 DescriptorType = ACPI_DESC_TYPE_NAMED;
846 }
847 break;
848
849 default:
850
851 break;
852 }
853
854 /* Display additional info for the major descriptor types */
855
856 switch (DescriptorType)
857 {
858 case ACPI_DESC_TYPE_OPERAND:
859
860 AcpiOsPrintf ("%12.12s RefCount 0x%04X\n",
861 AcpiUtGetTypeName (Descriptor->Object.Common.Type),
862 Descriptor->Object.Common.ReferenceCount);
863 break;
864
865 case ACPI_DESC_TYPE_PARSER:
866
867 AcpiOsPrintf ("AmlOpcode 0x%04X\n",
868 Descriptor->Op.Asl.AmlOpcode);
869 break;
870
871 case ACPI_DESC_TYPE_NAMED:
872
873 AcpiOsPrintf ("%4.4s\n",
874 AcpiUtGetNodeName (&Descriptor->Node));
875 break;
876
877 default:
878
879 AcpiOsPrintf ( "\n");
880 break;
881 }
882 }
883 }
884
885 NumOutstanding++;
886 }
887
888 Element = Element->Next;
889 }
890
891 Exit:
892 (void) AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
893
894 /* Print summary */
895
896 if (!NumOutstanding)
897 {
898 ACPI_INFO (("No outstanding allocations"));
899 }
900 else
901 {
902 ACPI_ERROR ((AE_INFO, "%u (0x%X) Outstanding cache allocations",
903 NumOutstanding, NumOutstanding));
904 }
905
906 return_VOID;
907 }
908
909 #endif /* ACPI_DBG_TRACK_ALLOCATIONS */
910
