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 <contrib/dev/acpica/include/acpi.h> 45 #include <contrib/dev/acpica/include/accommon.h> 46 #include <contrib/dev/acpica/include/acdebug.h> 47 #include <contrib/dev/acpica/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 buffer (size 0x%X needed 0x%X)", 217 ACPI_DEBUG_BUFFER_SIZE, (UINT32) ReturnObj->Length)); 218 } 219 } 220 221 Cleanup: 222 AcpiDbDeleteObjects (ParamObjects.Count, Params); 223 return_ACPI_STATUS (Status); 224 } 225 226 227 /******************************************************************************* 228 * 229 * FUNCTION: AcpiDbExecuteSetup 230 * 231 * PARAMETERS: Info - Valid method info 232 * 233 * RETURN: None 234 * 235 * DESCRIPTION: Setup info segment prior to method execution 236 * 237 ******************************************************************************/ 238 239 static ACPI_STATUS 240 AcpiDbExecuteSetup ( 241 ACPI_DB_METHOD_INFO *Info) 242 { 243 ACPI_STATUS Status; 244 245 246 ACPI_FUNCTION_NAME (DbExecuteSetup); 247 248 249 /* Catenate the current scope to the supplied name */ 250 251 Info->Pathname[0] = 0; 252 if ((Info->Name[0] != '\\') && 253 (Info->Name[0] != '/')) 254 { 255 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname), 256 AcpiGbl_DbScopeBuf)) 257 { 258 Status = AE_BUFFER_OVERFLOW; 259 goto ErrorExit; 260 } 261 } 262 263 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname), 264 Info->Name)) 265 { 266 Status = AE_BUFFER_OVERFLOW; 267 goto ErrorExit; 268 } 269 270 AcpiDbPrepNamestring (Info->Pathname); 271 272 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 273 AcpiOsPrintf ("Evaluating %s\n", Info->Pathname); 274 275 if (Info->Flags & EX_SINGLE_STEP) 276 { 277 AcpiGbl_CmSingleStep = TRUE; 278 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 279 } 280 281 else 282 { 283 /* No single step, allow redirection to a file */ 284 285 AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT); 286 } 287 288 return (AE_OK); 289 290 ErrorExit: 291 292 ACPI_EXCEPTION ((AE_INFO, Status, "During setup for method execution")); 293 return (Status); 294 } 295 296 297 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 298 UINT32 299 AcpiDbGetCacheInfo ( 300 ACPI_MEMORY_LIST *Cache) 301 { 302 303 return (Cache->TotalAllocated - Cache->TotalFreed - Cache->CurrentDepth); 304 } 305 #endif 306 307 /******************************************************************************* 308 * 309 * FUNCTION: AcpiDbGetOutstandingAllocations 310 * 311 * PARAMETERS: None 312 * 313 * RETURN: Current global allocation count minus cache entries 314 * 315 * DESCRIPTION: Determine the current number of "outstanding" allocations -- 316 * those allocations that have not been freed and also are not 317 * in one of the various object caches. 318 * 319 ******************************************************************************/ 320 321 static UINT32 322 AcpiDbGetOutstandingAllocations ( 323 void) 324 { 325 UINT32 Outstanding = 0; 326 327 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 328 329 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_StateCache); 330 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeCache); 331 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeExtCache); 332 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_OperandCache); 333 #endif 334 335 return (Outstanding); 336 } 337 338 339 /******************************************************************************* 340 * 341 * FUNCTION: AcpiDbExecutionWalk 342 * 343 * PARAMETERS: WALK_CALLBACK 344 * 345 * RETURN: Status 346 * 347 * DESCRIPTION: Execute a control method. Name is relative to the current 348 * scope. 349 * 350 ******************************************************************************/ 351 352 static ACPI_STATUS 353 AcpiDbExecutionWalk ( 354 ACPI_HANDLE ObjHandle, 355 UINT32 NestingLevel, 356 void *Context, 357 void **ReturnValue) 358 { 359 ACPI_OPERAND_OBJECT *ObjDesc; 360 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 361 ACPI_BUFFER ReturnObj; 362 ACPI_STATUS Status; 363 364 365 ObjDesc = AcpiNsGetAttachedObject (Node); 366 if (ObjDesc->Method.ParamCount) 367 { 368 return (AE_OK); 369 } 370 371 ReturnObj.Pointer = NULL; 372 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 373 374 AcpiNsPrintNodePathname (Node, "Evaluating"); 375 376 /* Do the actual method execution */ 377 378 AcpiOsPrintf ("\n"); 379 AcpiGbl_MethodExecuting = TRUE; 380 381 Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj); 382 383 AcpiOsPrintf ("Evaluation of [%4.4s] returned %s\n", AcpiUtGetNodeName (Node), 384 AcpiFormatException (Status)); 385 AcpiGbl_MethodExecuting = FALSE; 386 387 return (AE_OK); 388 } 389 390 391 /******************************************************************************* 392 * 393 * FUNCTION: AcpiDbExecute 394 * 395 * PARAMETERS: Name - Name of method to execute 396 * Args - Parameters to the method 397 * Flags - single step/no single step 398 * 399 * RETURN: None 400 * 401 * DESCRIPTION: Execute a control method. Name is relative to the current 402 * scope. 403 * 404 ******************************************************************************/ 405 406 void 407 AcpiDbExecute ( 408 char *Name, 409 char **Args, 410 ACPI_OBJECT_TYPE *Types, 411 UINT32 Flags) 412 { 413 ACPI_STATUS Status; 414 ACPI_BUFFER ReturnObj; 415 char *NameString; 416 417 418 #ifdef ACPI_DEBUG_OUTPUT 419 UINT32 PreviousAllocations; 420 UINT32 Allocations; 421 422 423 /* Memory allocation tracking */ 424 425 PreviousAllocations = AcpiDbGetOutstandingAllocations (); 426 #endif 427 428 if (*Name == '*') 429 { 430 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, 431 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL); 432 return; 433 } 434 else 435 { 436 NameString = ACPI_ALLOCATE (strlen (Name) + 1); 437 if (!NameString) 438 { 439 return; 440 } 441 442 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 443 444 strcpy (NameString, Name); 445 AcpiUtStrupr (NameString); 446 AcpiGbl_DbMethodInfo.Name = NameString; 447 AcpiGbl_DbMethodInfo.Args = Args; 448 AcpiGbl_DbMethodInfo.Types = Types; 449 AcpiGbl_DbMethodInfo.Flags = Flags; 450 451 ReturnObj.Pointer = NULL; 452 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 453 454 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 455 if (ACPI_FAILURE (Status)) 456 { 457 ACPI_FREE (NameString); 458 return; 459 } 460 461 /* Get the NS node, determines existence also */ 462 463 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 464 &AcpiGbl_DbMethodInfo.Method); 465 if (ACPI_SUCCESS (Status)) 466 { 467 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj); 468 } 469 ACPI_FREE (NameString); 470 } 471 472 /* 473 * Allow any handlers in separate threads to complete. 474 * (Such as Notify handlers invoked from AML executed above). 475 */ 476 AcpiOsSleep ((UINT64) 10); 477 478 #ifdef ACPI_DEBUG_OUTPUT 479 480 /* Memory allocation tracking */ 481 482 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 483 484 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 485 486 if (Allocations > 0) 487 { 488 AcpiOsPrintf ("0x%X Outstanding allocations after evaluation of %s\n", 489 Allocations, AcpiGbl_DbMethodInfo.Pathname); 490 } 491 #endif 492 493 if (ACPI_FAILURE (Status)) 494 { 495 AcpiOsPrintf ("Evaluation of %s failed with status %s\n", 496 AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status)); 497 } 498 else 499 { 500 /* Display a return object, if any */ 501 502 if (ReturnObj.Length) 503 { 504 AcpiOsPrintf ( 505 "Evaluation of %s returned object %p, external buffer length %X\n", 506 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 507 (UINT32) ReturnObj.Length); 508 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 509 510 /* Dump a _PLD buffer if present */ 511 512 if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 513 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), METHOD_NAME__PLD)) 514 { 515 AcpiDbDumpPldBuffer (ReturnObj.Pointer); 516 } 517 } 518 else 519 { 520 AcpiOsPrintf ("No object was returned from evaluation of %s\n", 521 AcpiGbl_DbMethodInfo.Pathname); 522 } 523 } 524 525 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 526 } 527 528 529 /******************************************************************************* 530 * 531 * FUNCTION: AcpiDbMethodThread 532 * 533 * PARAMETERS: Context - Execution info segment 534 * 535 * RETURN: None 536 * 537 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 538 * simply dispatches it. 539 * 540 ******************************************************************************/ 541 542 static void ACPI_SYSTEM_XFACE 543 AcpiDbMethodThread ( 544 void *Context) 545 { 546 ACPI_STATUS Status; 547 ACPI_DB_METHOD_INFO *Info = Context; 548 ACPI_DB_METHOD_INFO LocalInfo; 549 UINT32 i; 550 UINT8 Allow; 551 ACPI_BUFFER ReturnObj; 552 553 554 /* 555 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 556 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 557 * concurrently. 558 * 559 * Note: The arguments we are passing are used by the ASL test suite 560 * (aslts). Do not change them without updating the tests. 561 */ 562 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 563 564 if (Info->InitArgs) 565 { 566 AcpiDbUint32ToHexString (Info->NumCreated, Info->IndexOfThreadStr); 567 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), Info->IdOfThreadStr); 568 } 569 570 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 571 { 572 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 573 } 574 575 LocalInfo = *Info; 576 LocalInfo.Args = LocalInfo.Arguments; 577 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 578 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 579 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 580 LocalInfo.Arguments[3] = NULL; 581 582 LocalInfo.Types = LocalInfo.ArgTypes; 583 584 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 585 586 for (i = 0; i < Info->NumLoops; i++) 587 { 588 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 589 if (ACPI_FAILURE (Status)) 590 { 591 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n", 592 AcpiFormatException (Status), Info->Pathname, i); 593 if (Status == AE_ABORT_METHOD) 594 { 595 break; 596 } 597 } 598 599 #if 0 600 if ((i % 100) == 0) 601 { 602 AcpiOsPrintf ("%u loops, Thread 0x%x\n", i, AcpiOsGetThreadId ()); 603 } 604 605 if (ReturnObj.Length) 606 { 607 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n", 608 Info->Pathname, ReturnObj.Pointer, (UINT32) ReturnObj.Length); 609 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 610 } 611 #endif 612 } 613 614 /* Signal our completion */ 615 616 Allow = 0; 617 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 1, ACPI_WAIT_FOREVER); 618 Info->NumCompleted++; 619 620 if (Info->NumCompleted == Info->NumThreads) 621 { 622 /* Do signal for main thread once only */ 623 Allow = 1; 624 } 625 626 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1); 627 628 if (Allow) 629 { 630 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1); 631 if (ACPI_FAILURE (Status)) 632 { 633 AcpiOsPrintf ("Could not signal debugger thread sync semaphore, %s\n", 634 AcpiFormatException (Status)); 635 } 636 } 637 } 638 639 640 /******************************************************************************* 641 * 642 * FUNCTION: AcpiDbCreateExecutionThreads 643 * 644 * PARAMETERS: NumThreadsArg - Number of threads to create 645 * NumLoopsArg - Loop count for the thread(s) 646 * MethodNameArg - Control method to execute 647 * 648 * RETURN: None 649 * 650 * DESCRIPTION: Create threads to execute method(s) 651 * 652 ******************************************************************************/ 653 654 void 655 AcpiDbCreateExecutionThreads ( 656 char *NumThreadsArg, 657 char *NumLoopsArg, 658 char *MethodNameArg) 659 { 660 ACPI_STATUS Status; 661 UINT32 NumThreads; 662 UINT32 NumLoops; 663 UINT32 i; 664 UINT32 Size; 665 ACPI_MUTEX MainThreadGate; 666 ACPI_MUTEX ThreadCompleteGate; 667 ACPI_MUTEX InfoGate; 668 669 670 /* Get the arguments */ 671 672 NumThreads = strtoul (NumThreadsArg, NULL, 0); 673 NumLoops = strtoul (NumLoopsArg, NULL, 0); 674 675 if (!NumThreads || !NumLoops) 676 { 677 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", 678 NumThreads, NumLoops); 679 return; 680 } 681 682 /* 683 * Create the semaphore for synchronization of 684 * the created threads with the main thread. 685 */ 686 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate); 687 if (ACPI_FAILURE (Status)) 688 { 689 AcpiOsPrintf ("Could not create semaphore for synchronization with the main thread, %s\n", 690 AcpiFormatException (Status)); 691 return; 692 } 693 694 /* 695 * Create the semaphore for synchronization 696 * between the created threads. 697 */ 698 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate); 699 if (ACPI_FAILURE (Status)) 700 { 701 AcpiOsPrintf ("Could not create semaphore for synchronization between the created threads, %s\n", 702 AcpiFormatException (Status)); 703 (void) AcpiOsDeleteSemaphore (MainThreadGate); 704 return; 705 } 706 707 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate); 708 if (ACPI_FAILURE (Status)) 709 { 710 AcpiOsPrintf ("Could not create semaphore for synchronization of AcpiGbl_DbMethodInfo, %s\n", 711 AcpiFormatException (Status)); 712 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 713 (void) AcpiOsDeleteSemaphore (MainThreadGate); 714 return; 715 } 716 717 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 718 719 /* Array to store IDs of threads */ 720 721 AcpiGbl_DbMethodInfo.NumThreads = NumThreads; 722 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads; 723 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size); 724 if (AcpiGbl_DbMethodInfo.Threads == NULL) 725 { 726 AcpiOsPrintf ("No memory for thread IDs array\n"); 727 (void) AcpiOsDeleteSemaphore (MainThreadGate); 728 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 729 (void) AcpiOsDeleteSemaphore (InfoGate); 730 return; 731 } 732 memset (AcpiGbl_DbMethodInfo.Threads, 0, Size); 733 734 /* Setup the context to be passed to each thread */ 735 736 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 737 AcpiGbl_DbMethodInfo.Flags = 0; 738 AcpiGbl_DbMethodInfo.NumLoops = NumLoops; 739 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate; 740 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate; 741 AcpiGbl_DbMethodInfo.InfoGate = InfoGate; 742 743 /* Init arguments to be passed to method */ 744 745 AcpiGbl_DbMethodInfo.InitArgs = 1; 746 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 747 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr; 748 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr; 749 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr; 750 AcpiGbl_DbMethodInfo.Arguments[3] = NULL; 751 752 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes; 753 AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER; 754 AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER; 755 AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER; 756 757 AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr); 758 759 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 760 if (ACPI_FAILURE (Status)) 761 { 762 goto CleanupAndExit; 763 } 764 765 /* Get the NS node, determines existence also */ 766 767 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 768 &AcpiGbl_DbMethodInfo.Method); 769 if (ACPI_FAILURE (Status)) 770 { 771 AcpiOsPrintf ("%s Could not get handle for %s\n", 772 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname); 773 goto CleanupAndExit; 774 } 775 776 /* Create the threads */ 777 778 AcpiOsPrintf ("Creating %X threads to execute %X times each\n", 779 NumThreads, NumLoops); 780 781 for (i = 0; i < (NumThreads); i++) 782 { 783 Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread, 784 &AcpiGbl_DbMethodInfo); 785 if (ACPI_FAILURE (Status)) 786 { 787 break; 788 } 789 } 790 791 /* Wait for all threads to complete */ 792 793 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER); 794 795 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 796 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads); 797 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 798 799 CleanupAndExit: 800 801 /* Cleanup and exit */ 802 803 (void) AcpiOsDeleteSemaphore (MainThreadGate); 804 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 805 (void) AcpiOsDeleteSemaphore (InfoGate); 806 807 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads); 808 AcpiGbl_DbMethodInfo.Threads = NULL; 809 } 810 811 #endif /* ACPI_DEBUGGER */ 812