1 /******************************************************************************* 2 * 3 * Module Name: dbexec - debugger control method execution 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2015, 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 #include "acpi.h" 45 #include "accommon.h" 46 #include "acdebug.h" 47 #include "acnamesp.h" 48 49 #ifdef ACPI_DEBUGGER 50 51 #define _COMPONENT ACPI_CA_DEBUGGER 52 ACPI_MODULE_NAME ("dbexec") 53 54 55 static ACPI_DB_METHOD_INFO AcpiGbl_DbMethodInfo; 56 57 /* Local prototypes */ 58 59 static ACPI_STATUS 60 AcpiDbExecuteMethod ( 61 ACPI_DB_METHOD_INFO *Info, 62 ACPI_BUFFER *ReturnObj); 63 64 static ACPI_STATUS 65 AcpiDbExecuteSetup ( 66 ACPI_DB_METHOD_INFO *Info); 67 68 static UINT32 69 AcpiDbGetOutstandingAllocations ( 70 void); 71 72 static void ACPI_SYSTEM_XFACE 73 AcpiDbMethodThread ( 74 void *Context); 75 76 static ACPI_STATUS 77 AcpiDbExecutionWalk ( 78 ACPI_HANDLE ObjHandle, 79 UINT32 NestingLevel, 80 void *Context, 81 void **ReturnValue); 82 83 84 /******************************************************************************* 85 * 86 * FUNCTION: AcpiDbDeleteObjects 87 * 88 * PARAMETERS: Count - Count of objects in the list 89 * Objects - Array of ACPI_OBJECTs to be deleted 90 * 91 * RETURN: None 92 * 93 * DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested 94 * packages via recursion. 95 * 96 ******************************************************************************/ 97 98 void 99 AcpiDbDeleteObjects ( 100 UINT32 Count, 101 ACPI_OBJECT *Objects) 102 { 103 UINT32 i; 104 105 106 for (i = 0; i < Count; i++) 107 { 108 switch (Objects[i].Type) 109 { 110 case ACPI_TYPE_BUFFER: 111 112 ACPI_FREE (Objects[i].Buffer.Pointer); 113 break; 114 115 case ACPI_TYPE_PACKAGE: 116 117 /* Recursive call to delete package elements */ 118 119 AcpiDbDeleteObjects (Objects[i].Package.Count, 120 Objects[i].Package.Elements); 121 122 /* Free the elements array */ 123 124 ACPI_FREE (Objects[i].Package.Elements); 125 break; 126 127 default: 128 129 break; 130 } 131 } 132 } 133 134 135 /******************************************************************************* 136 * 137 * FUNCTION: AcpiDbExecuteMethod 138 * 139 * PARAMETERS: Info - Valid info segment 140 * ReturnObj - Where to put return object 141 * 142 * RETURN: Status 143 * 144 * DESCRIPTION: Execute a control method. 145 * 146 ******************************************************************************/ 147 148 static ACPI_STATUS 149 AcpiDbExecuteMethod ( 150 ACPI_DB_METHOD_INFO *Info, 151 ACPI_BUFFER *ReturnObj) 152 { 153 ACPI_STATUS Status; 154 ACPI_OBJECT_LIST ParamObjects; 155 ACPI_OBJECT Params[ACPI_DEBUGGER_MAX_ARGS + 1]; 156 UINT32 i; 157 158 159 ACPI_FUNCTION_TRACE (DbExecuteMethod); 160 161 162 if (AcpiGbl_DbOutputToFile && !AcpiDbgLevel) 163 { 164 AcpiOsPrintf ("Warning: debug output is not enabled!\n"); 165 } 166 167 ParamObjects.Count = 0; 168 ParamObjects.Pointer = NULL; 169 170 /* Pass through any command-line arguments */ 171 172 if (Info->Args && Info->Args[0]) 173 { 174 /* Get arguments passed on the command line */ 175 176 for (i = 0; (Info->Args[i] && *(Info->Args[i])); i++) 177 { 178 /* Convert input string (token) to an actual ACPI_OBJECT */ 179 180 Status = AcpiDbConvertToObject (Info->Types[i], 181 Info->Args[i], &Params[i]); 182 if (ACPI_FAILURE (Status)) 183 { 184 ACPI_EXCEPTION ((AE_INFO, Status, 185 "While parsing method arguments")); 186 goto Cleanup; 187 } 188 } 189 190 ParamObjects.Count = i; 191 ParamObjects.Pointer = Params; 192 } 193 194 /* Prepare for a return object of arbitrary size */ 195 196 ReturnObj->Pointer = AcpiGbl_DbBuffer; 197 ReturnObj->Length = ACPI_DEBUG_BUFFER_SIZE; 198 199 /* Do the actual method execution */ 200 201 AcpiGbl_MethodExecuting = TRUE; 202 Status = AcpiEvaluateObject (NULL, Info->Pathname, 203 &ParamObjects, ReturnObj); 204 205 AcpiGbl_CmSingleStep = FALSE; 206 AcpiGbl_MethodExecuting = FALSE; 207 208 if (ACPI_FAILURE (Status)) 209 { 210 ACPI_EXCEPTION ((AE_INFO, Status, 211 "while executing %s from debugger", Info->Pathname)); 212 213 if (Status == AE_BUFFER_OVERFLOW) 214 { 215 ACPI_ERROR ((AE_INFO, 216 "Possible overflow of internal debugger " 217 "buffer (size 0x%X needed 0x%X)", 218 ACPI_DEBUG_BUFFER_SIZE, (UINT32) ReturnObj->Length)); 219 } 220 } 221 222 Cleanup: 223 AcpiDbDeleteObjects (ParamObjects.Count, Params); 224 return_ACPI_STATUS (Status); 225 } 226 227 228 /******************************************************************************* 229 * 230 * FUNCTION: AcpiDbExecuteSetup 231 * 232 * PARAMETERS: Info - Valid method info 233 * 234 * RETURN: None 235 * 236 * DESCRIPTION: Setup info segment prior to method execution 237 * 238 ******************************************************************************/ 239 240 static ACPI_STATUS 241 AcpiDbExecuteSetup ( 242 ACPI_DB_METHOD_INFO *Info) 243 { 244 ACPI_STATUS Status; 245 246 247 ACPI_FUNCTION_NAME (DbExecuteSetup); 248 249 250 /* Catenate the current scope to the supplied name */ 251 252 Info->Pathname[0] = 0; 253 if ((Info->Name[0] != '\\') && 254 (Info->Name[0] != '/')) 255 { 256 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname), 257 AcpiGbl_DbScopeBuf)) 258 { 259 Status = AE_BUFFER_OVERFLOW; 260 goto ErrorExit; 261 } 262 } 263 264 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname), 265 Info->Name)) 266 { 267 Status = AE_BUFFER_OVERFLOW; 268 goto ErrorExit; 269 } 270 271 AcpiDbPrepNamestring (Info->Pathname); 272 273 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 274 AcpiOsPrintf ("Evaluating %s\n", Info->Pathname); 275 276 if (Info->Flags & EX_SINGLE_STEP) 277 { 278 AcpiGbl_CmSingleStep = TRUE; 279 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 280 } 281 282 else 283 { 284 /* No single step, allow redirection to a file */ 285 286 AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT); 287 } 288 289 return (AE_OK); 290 291 ErrorExit: 292 293 ACPI_EXCEPTION ((AE_INFO, Status, "During setup for method execution")); 294 return (Status); 295 } 296 297 298 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 299 UINT32 300 AcpiDbGetCacheInfo ( 301 ACPI_MEMORY_LIST *Cache) 302 { 303 304 return (Cache->TotalAllocated - Cache->TotalFreed - Cache->CurrentDepth); 305 } 306 #endif 307 308 /******************************************************************************* 309 * 310 * FUNCTION: AcpiDbGetOutstandingAllocations 311 * 312 * PARAMETERS: None 313 * 314 * RETURN: Current global allocation count minus cache entries 315 * 316 * DESCRIPTION: Determine the current number of "outstanding" allocations -- 317 * those allocations that have not been freed and also are not 318 * in one of the various object caches. 319 * 320 ******************************************************************************/ 321 322 static UINT32 323 AcpiDbGetOutstandingAllocations ( 324 void) 325 { 326 UINT32 Outstanding = 0; 327 328 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 329 330 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_StateCache); 331 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeCache); 332 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeExtCache); 333 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_OperandCache); 334 #endif 335 336 return (Outstanding); 337 } 338 339 340 /******************************************************************************* 341 * 342 * FUNCTION: AcpiDbExecutionWalk 343 * 344 * PARAMETERS: WALK_CALLBACK 345 * 346 * RETURN: Status 347 * 348 * DESCRIPTION: Execute a control method. Name is relative to the current 349 * scope. 350 * 351 ******************************************************************************/ 352 353 static ACPI_STATUS 354 AcpiDbExecutionWalk ( 355 ACPI_HANDLE ObjHandle, 356 UINT32 NestingLevel, 357 void *Context, 358 void **ReturnValue) 359 { 360 ACPI_OPERAND_OBJECT *ObjDesc; 361 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 362 ACPI_BUFFER ReturnObj; 363 ACPI_STATUS Status; 364 365 366 ObjDesc = AcpiNsGetAttachedObject (Node); 367 if (ObjDesc->Method.ParamCount) 368 { 369 return (AE_OK); 370 } 371 372 ReturnObj.Pointer = NULL; 373 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 374 375 AcpiNsPrintNodePathname (Node, "Evaluating"); 376 377 /* Do the actual method execution */ 378 379 AcpiOsPrintf ("\n"); 380 AcpiGbl_MethodExecuting = TRUE; 381 382 Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj); 383 384 AcpiOsPrintf ("Evaluation of [%4.4s] returned %s\n", 385 AcpiUtGetNodeName (Node), 386 AcpiFormatException (Status)); 387 388 AcpiGbl_MethodExecuting = FALSE; 389 return (AE_OK); 390 } 391 392 393 /******************************************************************************* 394 * 395 * FUNCTION: AcpiDbExecute 396 * 397 * PARAMETERS: Name - Name of method to execute 398 * Args - Parameters to the method 399 * Types - 400 * Flags - single step/no single step 401 * 402 * RETURN: None 403 * 404 * DESCRIPTION: Execute a control method. Name is relative to the current 405 * scope. 406 * 407 ******************************************************************************/ 408 409 void 410 AcpiDbExecute ( 411 char *Name, 412 char **Args, 413 ACPI_OBJECT_TYPE *Types, 414 UINT32 Flags) 415 { 416 ACPI_STATUS Status; 417 ACPI_BUFFER ReturnObj; 418 char *NameString; 419 420 #ifdef ACPI_DEBUG_OUTPUT 421 UINT32 PreviousAllocations; 422 UINT32 Allocations; 423 #endif 424 425 426 /* 427 * Allow one execution to be performed by debugger or single step 428 * execution will be dead locked by the interpreter mutexes. 429 */ 430 if (AcpiGbl_MethodExecuting) 431 { 432 AcpiOsPrintf ("Only one debugger execution is allowed.\n"); 433 return; 434 } 435 436 #ifdef ACPI_DEBUG_OUTPUT 437 /* Memory allocation tracking */ 438 439 PreviousAllocations = AcpiDbGetOutstandingAllocations (); 440 #endif 441 442 if (*Name == '*') 443 { 444 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, 445 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL); 446 return; 447 } 448 else 449 { 450 NameString = ACPI_ALLOCATE (strlen (Name) + 1); 451 if (!NameString) 452 { 453 return; 454 } 455 456 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 457 458 strcpy (NameString, Name); 459 AcpiUtStrupr (NameString); 460 AcpiGbl_DbMethodInfo.Name = NameString; 461 AcpiGbl_DbMethodInfo.Args = Args; 462 AcpiGbl_DbMethodInfo.Types = Types; 463 AcpiGbl_DbMethodInfo.Flags = Flags; 464 465 ReturnObj.Pointer = NULL; 466 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 467 468 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 469 if (ACPI_FAILURE (Status)) 470 { 471 ACPI_FREE (NameString); 472 return; 473 } 474 475 /* Get the NS node, determines existence also */ 476 477 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 478 &AcpiGbl_DbMethodInfo.Method); 479 if (ACPI_SUCCESS (Status)) 480 { 481 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, 482 &ReturnObj); 483 } 484 ACPI_FREE (NameString); 485 } 486 487 /* 488 * Allow any handlers in separate threads to complete. 489 * (Such as Notify handlers invoked from AML executed above). 490 */ 491 AcpiOsSleep ((UINT64) 10); 492 493 #ifdef ACPI_DEBUG_OUTPUT 494 495 /* Memory allocation tracking */ 496 497 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 498 499 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 500 501 if (Allocations > 0) 502 { 503 AcpiOsPrintf ( 504 "0x%X Outstanding allocations after evaluation of %s\n", 505 Allocations, AcpiGbl_DbMethodInfo.Pathname); 506 } 507 #endif 508 509 if (ACPI_FAILURE (Status)) 510 { 511 AcpiOsPrintf ("Evaluation of %s failed with status %s\n", 512 AcpiGbl_DbMethodInfo.Pathname, 513 AcpiFormatException (Status)); 514 } 515 else 516 { 517 /* Display a return object, if any */ 518 519 if (ReturnObj.Length) 520 { 521 AcpiOsPrintf ( 522 "Evaluation of %s returned object %p, " 523 "external buffer length %X\n", 524 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 525 (UINT32) ReturnObj.Length); 526 527 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 528 529 /* Dump a _PLD buffer if present */ 530 531 if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 532 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), 533 METHOD_NAME__PLD)) 534 { 535 AcpiDbDumpPldBuffer (ReturnObj.Pointer); 536 } 537 } 538 else 539 { 540 AcpiOsPrintf ("No object was returned from evaluation of %s\n", 541 AcpiGbl_DbMethodInfo.Pathname); 542 } 543 } 544 545 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 546 } 547 548 549 /******************************************************************************* 550 * 551 * FUNCTION: AcpiDbMethodThread 552 * 553 * PARAMETERS: Context - Execution info segment 554 * 555 * RETURN: None 556 * 557 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 558 * simply dispatches it. 559 * 560 ******************************************************************************/ 561 562 static void ACPI_SYSTEM_XFACE 563 AcpiDbMethodThread ( 564 void *Context) 565 { 566 ACPI_STATUS Status; 567 ACPI_DB_METHOD_INFO *Info = Context; 568 ACPI_DB_METHOD_INFO LocalInfo; 569 UINT32 i; 570 UINT8 Allow; 571 ACPI_BUFFER ReturnObj; 572 573 574 /* 575 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 576 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 577 * concurrently. 578 * 579 * Note: The arguments we are passing are used by the ASL test suite 580 * (aslts). Do not change them without updating the tests. 581 */ 582 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 583 584 if (Info->InitArgs) 585 { 586 AcpiDbUint32ToHexString (Info->NumCreated, 587 Info->IndexOfThreadStr); 588 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), 589 Info->IdOfThreadStr); 590 } 591 592 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 593 { 594 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 595 } 596 597 LocalInfo = *Info; 598 LocalInfo.Args = LocalInfo.Arguments; 599 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 600 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 601 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 602 LocalInfo.Arguments[3] = NULL; 603 604 LocalInfo.Types = LocalInfo.ArgTypes; 605 606 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 607 608 for (i = 0; i < Info->NumLoops; i++) 609 { 610 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 611 if (ACPI_FAILURE (Status)) 612 { 613 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n", 614 AcpiFormatException (Status), Info->Pathname, i); 615 if (Status == AE_ABORT_METHOD) 616 { 617 break; 618 } 619 } 620 621 #if 0 622 if ((i % 100) == 0) 623 { 624 AcpiOsPrintf ("%u loops, Thread 0x%x\n", 625 i, AcpiOsGetThreadId ()); 626 } 627 628 if (ReturnObj.Length) 629 { 630 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n", 631 Info->Pathname, ReturnObj.Pointer, (UINT32) ReturnObj.Length); 632 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 633 } 634 #endif 635 } 636 637 /* Signal our completion */ 638 639 Allow = 0; 640 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 641 1, ACPI_WAIT_FOREVER); 642 Info->NumCompleted++; 643 644 if (Info->NumCompleted == Info->NumThreads) 645 { 646 /* Do signal for main thread once only */ 647 Allow = 1; 648 } 649 650 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1); 651 652 if (Allow) 653 { 654 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1); 655 if (ACPI_FAILURE (Status)) 656 { 657 AcpiOsPrintf ( 658 "Could not signal debugger thread sync semaphore, %s\n", 659 AcpiFormatException (Status)); 660 } 661 } 662 } 663 664 665 /******************************************************************************* 666 * 667 * FUNCTION: AcpiDbCreateExecutionThreads 668 * 669 * PARAMETERS: NumThreadsArg - Number of threads to create 670 * NumLoopsArg - Loop count for the thread(s) 671 * MethodNameArg - Control method to execute 672 * 673 * RETURN: None 674 * 675 * DESCRIPTION: Create threads to execute method(s) 676 * 677 ******************************************************************************/ 678 679 void 680 AcpiDbCreateExecutionThreads ( 681 char *NumThreadsArg, 682 char *NumLoopsArg, 683 char *MethodNameArg) 684 { 685 ACPI_STATUS Status; 686 UINT32 NumThreads; 687 UINT32 NumLoops; 688 UINT32 i; 689 UINT32 Size; 690 ACPI_MUTEX MainThreadGate; 691 ACPI_MUTEX ThreadCompleteGate; 692 ACPI_MUTEX InfoGate; 693 694 695 /* Get the arguments */ 696 697 NumThreads = strtoul (NumThreadsArg, NULL, 0); 698 NumLoops = strtoul (NumLoopsArg, NULL, 0); 699 700 if (!NumThreads || !NumLoops) 701 { 702 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", 703 NumThreads, NumLoops); 704 return; 705 } 706 707 /* 708 * Create the semaphore for synchronization of 709 * the created threads with the main thread. 710 */ 711 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate); 712 if (ACPI_FAILURE (Status)) 713 { 714 AcpiOsPrintf ("Could not create semaphore for " 715 "synchronization with the main thread, %s\n", 716 AcpiFormatException (Status)); 717 return; 718 } 719 720 /* 721 * Create the semaphore for synchronization 722 * between the created threads. 723 */ 724 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate); 725 if (ACPI_FAILURE (Status)) 726 { 727 AcpiOsPrintf ("Could not create semaphore for " 728 "synchronization between the created threads, %s\n", 729 AcpiFormatException (Status)); 730 731 (void) AcpiOsDeleteSemaphore (MainThreadGate); 732 return; 733 } 734 735 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate); 736 if (ACPI_FAILURE (Status)) 737 { 738 AcpiOsPrintf ("Could not create semaphore for " 739 "synchronization of AcpiGbl_DbMethodInfo, %s\n", 740 AcpiFormatException (Status)); 741 742 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 743 (void) AcpiOsDeleteSemaphore (MainThreadGate); 744 return; 745 } 746 747 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 748 749 /* Array to store IDs of threads */ 750 751 AcpiGbl_DbMethodInfo.NumThreads = NumThreads; 752 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads; 753 754 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size); 755 if (AcpiGbl_DbMethodInfo.Threads == NULL) 756 { 757 AcpiOsPrintf ("No memory for thread IDs array\n"); 758 (void) AcpiOsDeleteSemaphore (MainThreadGate); 759 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 760 (void) AcpiOsDeleteSemaphore (InfoGate); 761 return; 762 } 763 memset (AcpiGbl_DbMethodInfo.Threads, 0, Size); 764 765 /* Setup the context to be passed to each thread */ 766 767 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 768 AcpiGbl_DbMethodInfo.Flags = 0; 769 AcpiGbl_DbMethodInfo.NumLoops = NumLoops; 770 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate; 771 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate; 772 AcpiGbl_DbMethodInfo.InfoGate = InfoGate; 773 774 /* Init arguments to be passed to method */ 775 776 AcpiGbl_DbMethodInfo.InitArgs = 1; 777 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 778 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr; 779 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr; 780 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr; 781 AcpiGbl_DbMethodInfo.Arguments[3] = NULL; 782 783 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes; 784 AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER; 785 AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER; 786 AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER; 787 788 AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr); 789 790 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 791 if (ACPI_FAILURE (Status)) 792 { 793 goto CleanupAndExit; 794 } 795 796 /* Get the NS node, determines existence also */ 797 798 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 799 &AcpiGbl_DbMethodInfo.Method); 800 if (ACPI_FAILURE (Status)) 801 { 802 AcpiOsPrintf ("%s Could not get handle for %s\n", 803 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname); 804 goto CleanupAndExit; 805 } 806 807 /* Create the threads */ 808 809 AcpiOsPrintf ("Creating %X threads to execute %X times each\n", 810 NumThreads, NumLoops); 811 812 for (i = 0; i < (NumThreads); i++) 813 { 814 Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread, 815 &AcpiGbl_DbMethodInfo); 816 if (ACPI_FAILURE (Status)) 817 { 818 break; 819 } 820 } 821 822 /* Wait for all threads to complete */ 823 824 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER); 825 826 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 827 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads); 828 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 829 830 CleanupAndExit: 831 832 /* Cleanup and exit */ 833 834 (void) AcpiOsDeleteSemaphore (MainThreadGate); 835 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 836 (void) AcpiOsDeleteSemaphore (InfoGate); 837 838 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads); 839 AcpiGbl_DbMethodInfo.Threads = NULL; 840 } 841 842 #endif /* ACPI_DEBUGGER */ 843