utalloc.c revision 71867
1/****************************************************************************** 2 * 3 * Module Name: cmalloc - local memory allocation routines 4 * $Revision: 84 $ 5 * 6 *****************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __CMALLOC_C__ 118 119#include "acpi.h" 120#include "acparser.h" 121#include "acinterp.h" 122#include "acnamesp.h" 123#include "acglobal.h" 124 125#define _COMPONENT MISCELLANEOUS 126 MODULE_NAME ("cmalloc") 127 128 129#ifdef ACPI_DEBUG_TRACK_ALLOCATIONS 130 131/* 132 * Most of this code is for tracking memory leaks in the subsystem, and it 133 * gets compiled out when the ACPI_DEBUG flag is not set. 134 * Every memory allocation is kept track of in a doubly linked list. Each 135 * element contains the caller's component, module name, function name, and 136 * line number. _CmAllocate and _CmCallocate call AcpiCmAddElementToAllocList 137 * to add an element to the list; deletion occurs in the bosy of _CmFree. 138 */ 139 140 141/***************************************************************************** 142 * 143 * FUNCTION: AcpiCmSearchAllocList 144 * 145 * PARAMETERS: Address - Address of allocated memory 146 * 147 * RETURN: A list element if found; NULL otherwise. 148 * 149 * DESCRIPTION: Searches for an element in the global allocation tracking list. 150 * 151 ****************************************************************************/ 152 153ALLOCATION_INFO * 154AcpiCmSearchAllocList ( 155 void *Address) 156{ 157 ALLOCATION_INFO *Element = AcpiGbl_HeadAllocPtr; 158 159 160 /* Search for the address. */ 161 162 while (Element) 163 { 164 if (Element->Address == Address) 165 { 166 return (Element); 167 } 168 169 Element = Element->Next; 170 } 171 172 return (NULL); 173} 174 175 176/***************************************************************************** 177 * 178 * FUNCTION: AcpiCmAddElementToAllocList 179 * 180 * PARAMETERS: Address - Address of allocated memory 181 * Size - Size of the allocation 182 * AllocType - MEM_MALLOC or MEM_CALLOC 183 * Component - Component type of caller 184 * Module - Source file name of caller 185 * Line - Line number of caller 186 * 187 * RETURN: None. 188 * 189 * DESCRIPTION: Inserts an element into the global allocation tracking list. 190 * 191 ****************************************************************************/ 192 193ACPI_STATUS 194AcpiCmAddElementToAllocList ( 195 void *Address, 196 UINT32 Size, 197 UINT8 AllocType, 198 UINT32 Component, 199 NATIVE_CHAR *Module, 200 UINT32 Line) 201{ 202 ALLOCATION_INFO *Element; 203 ACPI_STATUS Status = AE_OK; 204 205 206 FUNCTION_TRACE_PTR ("CmAddElementToAllocList", Address); 207 208 209 AcpiCmAcquireMutex (ACPI_MTX_MEMORY); 210 211 /* Keep track of the running total of all allocations. */ 212 213 AcpiGbl_CurrentAllocCount++; 214 AcpiGbl_RunningAllocCount++; 215 216 if (AcpiGbl_MaxConcurrentAllocCount < AcpiGbl_CurrentAllocCount) 217 { 218 AcpiGbl_MaxConcurrentAllocCount = AcpiGbl_CurrentAllocCount; 219 } 220 221 AcpiGbl_CurrentAllocSize += Size; 222 AcpiGbl_RunningAllocSize += Size; 223 224 if (AcpiGbl_MaxConcurrentAllocSize < AcpiGbl_CurrentAllocSize) 225 { 226 AcpiGbl_MaxConcurrentAllocSize = AcpiGbl_CurrentAllocSize; 227 } 228 229 /* If the head pointer is null, create the first element and fill it in. */ 230 231 if (NULL == AcpiGbl_HeadAllocPtr) 232 { 233 AcpiGbl_HeadAllocPtr = 234 (ALLOCATION_INFO *) AcpiOsCallocate (sizeof (ALLOCATION_INFO)); 235 236 if (!AcpiGbl_HeadAllocPtr) 237 { 238 DEBUG_PRINT (ACPI_ERROR, 239 ("Could not allocate memory info block\n")); 240 Status = AE_NO_MEMORY; 241 goto UnlockAndExit; 242 } 243 244 AcpiGbl_TailAllocPtr = AcpiGbl_HeadAllocPtr; 245 } 246 247 else 248 { 249 AcpiGbl_TailAllocPtr->Next = 250 (ALLOCATION_INFO *) AcpiOsCallocate (sizeof (ALLOCATION_INFO)); 251 if (!AcpiGbl_TailAllocPtr->Next) 252 { 253 DEBUG_PRINT (ACPI_ERROR, 254 ("Could not allocate memory info block\n")); 255 Status = AE_NO_MEMORY; 256 goto UnlockAndExit; 257 } 258 259 /* error check */ 260 261 AcpiGbl_TailAllocPtr->Next->Previous = AcpiGbl_TailAllocPtr; 262 AcpiGbl_TailAllocPtr = AcpiGbl_TailAllocPtr->Next; 263 } 264 265 /* 266 * Search list for this address to make sure it is not already on the list. 267 * This will catch several kinds of problems. 268 */ 269 270 Element = AcpiCmSearchAllocList (Address); 271 if (Element) 272 { 273 REPORT_ERROR (("CmAddElementToAllocList: Address already present in list! (%p)\n", 274 Address)); 275 276 DEBUG_PRINT (ACPI_ERROR, ("Element %p Address %p\n", Element, Address)); 277 278 BREAKPOINT3; 279 } 280 281 /* Fill in the instance data. */ 282 283 AcpiGbl_TailAllocPtr->Address = Address; 284 AcpiGbl_TailAllocPtr->Size = Size; 285 AcpiGbl_TailAllocPtr->AllocType = AllocType; 286 AcpiGbl_TailAllocPtr->Component = Component; 287 AcpiGbl_TailAllocPtr->Line = Line; 288 289 STRNCPY (AcpiGbl_TailAllocPtr->Module, Module, MAX_MODULE_NAME); 290 291 292UnlockAndExit: 293 AcpiCmReleaseMutex (ACPI_MTX_MEMORY); 294 return_ACPI_STATUS (Status); 295} 296 297 298/***************************************************************************** 299 * 300 * FUNCTION: AcpiCmDeleteElementFromAllocList 301 * 302 * PARAMETERS: Address - Address of allocated memory 303 * Component - Component type of caller 304 * Module - Source file name of caller 305 * Line - Line number of caller 306 * 307 * RETURN: 308 * 309 * DESCRIPTION: Deletes an element from the global allocation tracking list. 310 * 311 ****************************************************************************/ 312 313void 314AcpiCmDeleteElementFromAllocList ( 315 void *Address, 316 UINT32 Component, 317 NATIVE_CHAR *Module, 318 UINT32 Line) 319{ 320 ALLOCATION_INFO *Element; 321 UINT32 *DwordPtr; 322 UINT32 DwordLen; 323 UINT32 Size; 324 UINT32 i; 325 326 327 FUNCTION_TRACE ("CmDeleteElementFromAllocList"); 328 329 if (NULL == AcpiGbl_HeadAllocPtr) 330 { 331 /* Boy we got problems. */ 332 333 _REPORT_ERROR (Module, Line, Component, 334 ("CmDeleteElementFromAllocList: Empty allocation list, nothing to free!\n")); 335 336 return_VOID; 337 } 338 339 340 AcpiCmAcquireMutex (ACPI_MTX_MEMORY); 341 342 /* Keep track of the amount of memory allocated. */ 343 344 Size = 0; 345 AcpiGbl_CurrentAllocCount--; 346 347 if (AcpiGbl_HeadAllocPtr == AcpiGbl_TailAllocPtr) 348 { 349 if (Address != AcpiGbl_HeadAllocPtr->Address) 350 { 351 _REPORT_ERROR (Module, Line, Component, 352 ("CmDeleteElementFromAllocList: Deleting non-allocated memory\n")); 353 354 goto Cleanup; 355 } 356 357 Size = AcpiGbl_HeadAllocPtr->Size; 358 359 AcpiOsFree (AcpiGbl_HeadAllocPtr); 360 AcpiGbl_HeadAllocPtr = NULL; 361 AcpiGbl_TailAllocPtr = NULL; 362 363 DEBUG_PRINT (TRACE_ALLOCATIONS, 364 ("_CmFree: Allocation list deleted. There are no outstanding allocations\n")); 365 366 goto Cleanup; 367 } 368 369 370 /* Search list for this address */ 371 372 Element = AcpiCmSearchAllocList (Address); 373 if (Element) 374 { 375 /* cases: head, tail, other */ 376 377 if (Element == AcpiGbl_HeadAllocPtr) 378 { 379 Element->Next->Previous = NULL; 380 AcpiGbl_HeadAllocPtr = Element->Next; 381 } 382 383 else 384 { 385 if (Element == AcpiGbl_TailAllocPtr) 386 { 387 Element->Previous->Next = NULL; 388 AcpiGbl_TailAllocPtr = Element->Previous; 389 } 390 391 else 392 { 393 Element->Previous->Next = Element->Next; 394 Element->Next->Previous = Element->Previous; 395 } 396 } 397 398 399 /* Mark the segment as deleted */ 400 401 if (Element->Size >= 4) 402 { 403 DwordLen = DIV_4 (Element->Size); 404 DwordPtr = (UINT32 *) Element->Address; 405 406 for (i = 0; i < DwordLen; i++) 407 { 408 DwordPtr[i] = 0x00DEAD00; 409 } 410 411 /* Set obj type, desc, and ref count fields to all ones */ 412 413 DwordPtr[0] = ACPI_UINT32_MAX; 414 if (Element->Size >= 8) 415 { 416 DwordPtr[1] = ACPI_UINT32_MAX; 417 } 418 } 419 420 Size = Element->Size; 421 422 MEMSET (Element, 0xEA, sizeof (ALLOCATION_INFO)); 423 424 425 if (Size == sizeof (ACPI_OPERAND_OBJECT)) 426 { 427 DEBUG_PRINT (TRACE_ALLOCATIONS, ("CmDelete: Freeing size %X (ACPI_OPERAND_OBJECT)\n", Size)); 428 } 429 else 430 { 431 DEBUG_PRINT (TRACE_ALLOCATIONS, ("CmDelete: Freeing size %X\n", Size)); 432 } 433 434 AcpiOsFree (Element); 435 } 436 437 else 438 { 439 _REPORT_ERROR (Module, Line, Component, 440 ("_CmFree: Entry not found in list\n")); 441 DEBUG_PRINT (ACPI_ERROR, 442 ("_CmFree: Entry %p was not found in allocation list\n", 443 Address)); 444 AcpiCmReleaseMutex (ACPI_MTX_MEMORY); 445 return_VOID; 446 } 447 448 449Cleanup: 450 451 AcpiGbl_CurrentAllocSize -= Size; 452 AcpiCmReleaseMutex (ACPI_MTX_MEMORY); 453 454 return_VOID; 455} 456 457 458/***************************************************************************** 459 * 460 * FUNCTION: AcpiCmDumpAllocationInfo 461 * 462 * PARAMETERS: 463 * 464 * RETURN: None 465 * 466 * DESCRIPTION: Print some info about the outstanding allocations. 467 * 468 ****************************************************************************/ 469 470void 471AcpiCmDumpAllocationInfo ( 472 void) 473{ 474 FUNCTION_TRACE ("CmDumpAllocationInfo"); 475 476 477 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 478 ("%30s: %4d (%3d Kb)\n", "Current allocations", 479 AcpiGbl_CurrentAllocCount, 480 ROUND_UP_TO_1K (AcpiGbl_CurrentAllocSize))); 481 482 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 483 ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", 484 AcpiGbl_MaxConcurrentAllocCount, 485 ROUND_UP_TO_1K (AcpiGbl_MaxConcurrentAllocSize))); 486 487 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 488 ("%30s: %4d (%3d Kb)\n", "Current Internal objects", 489 AcpiGbl_CurrentObjectCount, 490 ROUND_UP_TO_1K (AcpiGbl_CurrentObjectSize))); 491 492 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 493 ("%30s: %4d (%3d Kb)\n", "Max internal objects", 494 AcpiGbl_MaxConcurrentObjectCount, 495 ROUND_UP_TO_1K (AcpiGbl_MaxConcurrentObjectSize))); 496 497 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 498 ("%30s: %4d (%3d Kb)\n", "Current Nodes", 499 AcpiGbl_CurrentNodeCount, 500 ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize))); 501 502 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 503 ("%30s: %4d (%3d Kb)\n", "Max Nodes", 504 AcpiGbl_MaxConcurrentNodeCount, 505 ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount * sizeof (ACPI_NAMESPACE_NODE))))); 506 507 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 508 ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", 509 AcpiGbl_RunningObjectCount, 510 ROUND_UP_TO_1K (AcpiGbl_RunningObjectSize))); 511 512 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 513 ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", 514 AcpiGbl_RunningAllocCount, 515 ROUND_UP_TO_1K (AcpiGbl_RunningAllocSize))); 516 517 return_VOID; 518} 519 520 521/***************************************************************************** 522 * 523 * FUNCTION: AcpiCmDumpCurrentAllocations 524 * 525 * PARAMETERS: Component - Component(s) to dump info for. 526 * Module - Module to dump info for. NULL means all. 527 * 528 * RETURN: None 529 * 530 * DESCRIPTION: Print a list of all outstanding allocations. 531 * 532 ****************************************************************************/ 533 534void 535AcpiCmDumpCurrentAllocations ( 536 UINT32 Component, 537 NATIVE_CHAR *Module) 538{ 539 ALLOCATION_INFO *Element = AcpiGbl_HeadAllocPtr; 540 UINT32 i; 541 542 543 FUNCTION_TRACE ("CmDumpCurrentAllocations"); 544 545 546 if (Element == NULL) 547 { 548 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 549 ("No outstanding allocations.\n")); 550 return_VOID; 551 } 552 553 554 /* 555 * Walk the allocation list. 556 */ 557 558 AcpiCmAcquireMutex (ACPI_MTX_MEMORY); 559 560 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 561 ("Outstanding allocations:\n")); 562 563 for (i = 1; ; i++) /* Just a counter */ 564 { 565 if ((Element->Component & Component) && 566 ((Module == NULL) || (0 == STRCMP (Module, Element->Module)))) 567 { 568 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 569 ("%p Len %04lX %9.9s-%ld", 570 Element->Address, Element->Size, Element->Module, 571 Element->Line)); 572 573 /* Most of the elements will be internal objects. */ 574 575 switch (((ACPI_OPERAND_OBJECT *) 576 (Element->Address))->Common.DataType) 577 { 578 case ACPI_DESC_TYPE_INTERNAL: 579 DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES, 580 (" ObjType %s", 581 AcpiCmGetTypeName (((ACPI_OPERAND_OBJECT *)(Element->Address))->Common.Type))); 582 break; 583 584 case ACPI_DESC_TYPE_PARSER: 585 DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES, 586 (" ParseObj Opcode %04X", 587 ((ACPI_PARSE_OBJECT *)(Element->Address))->Opcode)); 588 break; 589 590 case ACPI_DESC_TYPE_NAMED: 591 DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES, 592 (" Node %4.4s", 593 &((ACPI_NAMESPACE_NODE *)(Element->Address))->Name)); 594 break; 595 596 case ACPI_DESC_TYPE_STATE: 597 DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES, 598 (" StateObj")); 599 break; 600 } 601 602 DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES, ("\n")); 603 } 604 605 if (Element->Next == NULL) 606 { 607 break; 608 } 609 610 Element = Element->Next; 611 } 612 613 AcpiCmReleaseMutex (ACPI_MTX_MEMORY); 614 615 DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 616 ("Total number of unfreed allocations = %d(%X)\n", i,i)); 617 618 619 return_VOID; 620 621} 622#endif /* #ifdef ACPI_DEBUG_TRACK_ALLOCATIONS */ 623 624/***************************************************************************** 625 * 626 * FUNCTION: _CmAllocate 627 * 628 * PARAMETERS: Size - Size of the allocation 629 * Component - Component type of caller 630 * Module - Source file name of caller 631 * Line - Line number of caller 632 * 633 * RETURN: Address of the allocated memory on success, NULL on failure. 634 * 635 * DESCRIPTION: The subsystem's equivalent of malloc. 636 * 637 ****************************************************************************/ 638 639void * 640_CmAllocate ( 641 UINT32 Size, 642 UINT32 Component, 643 NATIVE_CHAR *Module, 644 UINT32 Line) 645{ 646 void *Address = NULL; 647 648 649 FUNCTION_TRACE_U32 ("_CmAllocate", Size); 650 651 652 /* Check for an inadvertent size of zero bytes */ 653 654 if (!Size) 655 { 656 _REPORT_ERROR (Module, Line, Component, 657 ("CmAllocate: Attempt to allocate zero bytes\n")); 658 Size = 1; 659 } 660 661 Address = AcpiOsAllocate (Size); 662 if (!Address) 663 { 664 /* Report allocation error */ 665 666 _REPORT_ERROR (Module, Line, Component, 667 ("CmAllocate: Could not allocate size %X\n", Size)); 668 669 return_VALUE (NULL); 670 } 671 672#ifdef ACPI_DEBUG_TRACK_ALLOCATIONS 673 674 if (ACPI_FAILURE (AcpiCmAddElementToAllocList (Address, Size, MEM_MALLOC, 675 Component, Module, Line))) 676 { 677 AcpiOsFree (Address); 678 return_PTR (NULL); 679 } 680 681 DEBUG_PRINT (TRACE_ALLOCATIONS, 682 ("CmAllocate: %p Size %X\n", Address, Size)); 683#endif 684 685 return_PTR (Address); 686} 687 688 689/***************************************************************************** 690 * 691 * FUNCTION: _CmCallocate 692 * 693 * PARAMETERS: Size - Size of the allocation 694 * Component - Component type of caller 695 * Module - Source file name of caller 696 * Line - Line number of caller 697 * 698 * RETURN: Address of the allocated memory on success, NULL on failure. 699 * 700 * DESCRIPTION: Subsystem equivalent of calloc. 701 * 702 ****************************************************************************/ 703 704void * 705_CmCallocate ( 706 UINT32 Size, 707 UINT32 Component, 708 NATIVE_CHAR *Module, 709 UINT32 Line) 710{ 711 void *Address = NULL; 712 713 714 FUNCTION_TRACE_U32 ("_CmCallocate", Size); 715 716 717 /* Check for an inadvertent size of zero bytes */ 718 719 if (!Size) 720 { 721 _REPORT_ERROR (Module, Line, Component, 722 ("CmCallocate: Attempt to allocate zero bytes\n")); 723 return_VALUE (NULL); 724 } 725 726 727 Address = AcpiOsCallocate (Size); 728 729 if (!Address) 730 { 731 /* Report allocation error */ 732 733 _REPORT_ERROR (Module, Line, Component, 734 ("CmCallocate: Could not allocate size %X\n", Size)); 735 return_VALUE (NULL); 736 } 737 738#ifdef ACPI_DEBUG_TRACK_ALLOCATIONS 739 740 if (ACPI_FAILURE (AcpiCmAddElementToAllocList (Address, Size, MEM_CALLOC, 741 Component,Module, Line))) 742 { 743 AcpiOsFree (Address); 744 return_PTR (NULL); 745 } 746#endif 747 748 DEBUG_PRINT (TRACE_ALLOCATIONS, 749 ("CmCallocate: %p Size %X\n", Address, Size)); 750 751 return_PTR (Address); 752} 753 754 755/***************************************************************************** 756 * 757 * FUNCTION: _CmFree 758 * 759 * PARAMETERS: Address - Address of the memory to deallocate 760 * Component - Component type of caller 761 * Module - Source file name of caller 762 * Line - Line number of caller 763 * 764 * RETURN: None 765 * 766 * DESCRIPTION: Frees the memory at Address 767 * 768 ****************************************************************************/ 769 770void 771_CmFree ( 772 void *Address, 773 UINT32 Component, 774 NATIVE_CHAR *Module, 775 UINT32 Line) 776{ 777 FUNCTION_TRACE_PTR ("_CmFree", Address); 778 779 780 if (NULL == Address) 781 { 782 _REPORT_ERROR (Module, Line, Component, 783 ("_CmFree: Trying to delete a NULL address\n")); 784 785 return_VOID; 786 } 787 788#ifdef ACPI_DEBUG_TRACK_ALLOCATIONS 789 AcpiCmDeleteElementFromAllocList (Address, Component, Module, Line); 790#endif 791 792 AcpiOsFree (Address); 793 794 DEBUG_PRINT (TRACE_ALLOCATIONS, ("CmFree: %p freed\n", Address)); 795 796 return_VOID; 797} 798 799 800