1 /******************************************************************************* 2 * 3 * Module Name: dbexec - debugger control method execution 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2017, 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 } 448 449 NameString = ACPI_ALLOCATE (strlen (Name) + 1); 450 if (!NameString) 451 { 452 return; 453 } 454 455 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 456 strcpy (NameString, Name); 457 AcpiUtStrupr (NameString); 458 459 /* Subcommand to Execute all predefined names in the namespace */ 460 461 if (!strncmp (NameString, "PREDEF", 6)) 462 { 463 AcpiDbEvaluatePredefinedNames (); 464 ACPI_FREE (NameString); 465 return; 466 } 467 468 AcpiGbl_DbMethodInfo.Name = NameString; 469 AcpiGbl_DbMethodInfo.Args = Args; 470 AcpiGbl_DbMethodInfo.Types = Types; 471 AcpiGbl_DbMethodInfo.Flags = Flags; 472 473 ReturnObj.Pointer = NULL; 474 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 475 476 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 477 if (ACPI_FAILURE (Status)) 478 { 479 ACPI_FREE (NameString); 480 return; 481 } 482 483 /* Get the NS node, determines existence also */ 484 485 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 486 &AcpiGbl_DbMethodInfo.Method); 487 if (ACPI_SUCCESS (Status)) 488 { 489 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, 490 &ReturnObj); 491 } 492 ACPI_FREE (NameString); 493 494 /* 495 * Allow any handlers in separate threads to complete. 496 * (Such as Notify handlers invoked from AML executed above). 497 */ 498 AcpiOsSleep ((UINT64) 10); 499 500 #ifdef ACPI_DEBUG_OUTPUT 501 502 /* Memory allocation tracking */ 503 504 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 505 506 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 507 508 if (Allocations > 0) 509 { 510 AcpiOsPrintf ( 511 "0x%X Outstanding allocations after evaluation of %s\n", 512 Allocations, AcpiGbl_DbMethodInfo.Pathname); 513 } 514 #endif 515 516 if (ACPI_FAILURE (Status)) 517 { 518 AcpiOsPrintf ("Evaluation of %s failed with status %s\n", 519 AcpiGbl_DbMethodInfo.Pathname, 520 AcpiFormatException (Status)); 521 } 522 else 523 { 524 /* Display a return object, if any */ 525 526 if (ReturnObj.Length) 527 { 528 AcpiOsPrintf ( 529 "Evaluation of %s returned object %p, " 530 "external buffer length %X\n", 531 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 532 (UINT32) ReturnObj.Length); 533 534 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 535 536 /* Dump a _PLD buffer if present */ 537 538 if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 539 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), 540 METHOD_NAME__PLD)) 541 { 542 AcpiDbDumpPldBuffer (ReturnObj.Pointer); 543 } 544 } 545 else 546 { 547 AcpiOsPrintf ("No object was returned from evaluation of %s\n", 548 AcpiGbl_DbMethodInfo.Pathname); 549 } 550 } 551 552 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 553 } 554 555 556 /******************************************************************************* 557 * 558 * FUNCTION: AcpiDbMethodThread 559 * 560 * PARAMETERS: Context - Execution info segment 561 * 562 * RETURN: None 563 * 564 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 565 * simply dispatches it. 566 * 567 ******************************************************************************/ 568 569 static void ACPI_SYSTEM_XFACE 570 AcpiDbMethodThread ( 571 void *Context) 572 { 573 ACPI_STATUS Status; 574 ACPI_DB_METHOD_INFO *Info = Context; 575 ACPI_DB_METHOD_INFO LocalInfo; 576 UINT32 i; 577 UINT8 Allow; 578 ACPI_BUFFER ReturnObj; 579 580 581 /* 582 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 583 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 584 * concurrently. 585 * 586 * Note: The arguments we are passing are used by the ASL test suite 587 * (aslts). Do not change them without updating the tests. 588 */ 589 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 590 591 if (Info->InitArgs) 592 { 593 AcpiDbUint32ToHexString (Info->NumCreated, 594 Info->IndexOfThreadStr); 595 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), 596 Info->IdOfThreadStr); 597 } 598 599 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 600 { 601 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 602 } 603 604 LocalInfo = *Info; 605 LocalInfo.Args = LocalInfo.Arguments; 606 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 607 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 608 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 609 LocalInfo.Arguments[3] = NULL; 610 611 LocalInfo.Types = LocalInfo.ArgTypes; 612 613 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 614 615 for (i = 0; i < Info->NumLoops; i++) 616 { 617 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 618 if (ACPI_FAILURE (Status)) 619 { 620 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n", 621 AcpiFormatException (Status), Info->Pathname, i); 622 if (Status == AE_ABORT_METHOD) 623 { 624 break; 625 } 626 } 627 628 #if 0 629 if ((i % 100) == 0) 630 { 631 AcpiOsPrintf ("%u loops, Thread 0x%x\n", 632 i, AcpiOsGetThreadId ()); 633 } 634 635 if (ReturnObj.Length) 636 { 637 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n", 638 Info->Pathname, ReturnObj.Pointer, 639 (UINT32) ReturnObj.Length); 640 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 641 } 642 #endif 643 } 644 645 /* Signal our completion */ 646 647 Allow = 0; 648 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 649 1, ACPI_WAIT_FOREVER); 650 Info->NumCompleted++; 651 652 if (Info->NumCompleted == Info->NumThreads) 653 { 654 /* Do signal for main thread once only */ 655 Allow = 1; 656 } 657 658 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1); 659 660 if (Allow) 661 { 662 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1); 663 if (ACPI_FAILURE (Status)) 664 { 665 AcpiOsPrintf ( 666 "Could not signal debugger thread sync semaphore, %s\n", 667 AcpiFormatException (Status)); 668 } 669 } 670 } 671 672 673 /******************************************************************************* 674 * 675 * FUNCTION: AcpiDbCreateExecutionThreads 676 * 677 * PARAMETERS: NumThreadsArg - Number of threads to create 678 * NumLoopsArg - Loop count for the thread(s) 679 * MethodNameArg - Control method to execute 680 * 681 * RETURN: None 682 * 683 * DESCRIPTION: Create threads to execute method(s) 684 * 685 ******************************************************************************/ 686 687 void 688 AcpiDbCreateExecutionThreads ( 689 char *NumThreadsArg, 690 char *NumLoopsArg, 691 char *MethodNameArg) 692 { 693 ACPI_STATUS Status; 694 UINT32 NumThreads; 695 UINT32 NumLoops; 696 UINT32 i; 697 UINT32 Size; 698 ACPI_MUTEX MainThreadGate; 699 ACPI_MUTEX ThreadCompleteGate; 700 ACPI_MUTEX InfoGate; 701 702 703 /* Get the arguments */ 704 705 NumThreads = strtoul (NumThreadsArg, NULL, 0); 706 NumLoops = strtoul (NumLoopsArg, NULL, 0); 707 708 if (!NumThreads || !NumLoops) 709 { 710 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", 711 NumThreads, NumLoops); 712 return; 713 } 714 715 /* 716 * Create the semaphore for synchronization of 717 * the created threads with the main thread. 718 */ 719 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate); 720 if (ACPI_FAILURE (Status)) 721 { 722 AcpiOsPrintf ("Could not create semaphore for " 723 "synchronization with the main thread, %s\n", 724 AcpiFormatException (Status)); 725 return; 726 } 727 728 /* 729 * Create the semaphore for synchronization 730 * between the created threads. 731 */ 732 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate); 733 if (ACPI_FAILURE (Status)) 734 { 735 AcpiOsPrintf ("Could not create semaphore for " 736 "synchronization between the created threads, %s\n", 737 AcpiFormatException (Status)); 738 739 (void) AcpiOsDeleteSemaphore (MainThreadGate); 740 return; 741 } 742 743 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate); 744 if (ACPI_FAILURE (Status)) 745 { 746 AcpiOsPrintf ("Could not create semaphore for " 747 "synchronization of AcpiGbl_DbMethodInfo, %s\n", 748 AcpiFormatException (Status)); 749 750 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 751 (void) AcpiOsDeleteSemaphore (MainThreadGate); 752 return; 753 } 754 755 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 756 757 /* Array to store IDs of threads */ 758 759 AcpiGbl_DbMethodInfo.NumThreads = NumThreads; 760 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads; 761 762 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size); 763 if (AcpiGbl_DbMethodInfo.Threads == NULL) 764 { 765 AcpiOsPrintf ("No memory for thread IDs array\n"); 766 (void) AcpiOsDeleteSemaphore (MainThreadGate); 767 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 768 (void) AcpiOsDeleteSemaphore (InfoGate); 769 return; 770 } 771 memset (AcpiGbl_DbMethodInfo.Threads, 0, Size); 772 773 /* Setup the context to be passed to each thread */ 774 775 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 776 AcpiGbl_DbMethodInfo.Flags = 0; 777 AcpiGbl_DbMethodInfo.NumLoops = NumLoops; 778 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate; 779 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate; 780 AcpiGbl_DbMethodInfo.InfoGate = InfoGate; 781 782 /* Init arguments to be passed to method */ 783 784 AcpiGbl_DbMethodInfo.InitArgs = 1; 785 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 786 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr; 787 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr; 788 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr; 789 AcpiGbl_DbMethodInfo.Arguments[3] = NULL; 790 791 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes; 792 AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER; 793 AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER; 794 AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER; 795 796 AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr); 797 798 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 799 if (ACPI_FAILURE (Status)) 800 { 801 goto CleanupAndExit; 802 } 803 804 /* Get the NS node, determines existence also */ 805 806 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 807 &AcpiGbl_DbMethodInfo.Method); 808 if (ACPI_FAILURE (Status)) 809 { 810 AcpiOsPrintf ("%s Could not get handle for %s\n", 811 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname); 812 goto CleanupAndExit; 813 } 814 815 /* Create the threads */ 816 817 AcpiOsPrintf ("Creating %X threads to execute %X times each\n", 818 NumThreads, NumLoops); 819 820 for (i = 0; i < (NumThreads); i++) 821 { 822 Status = AcpiOsExecute (OSL_DEBUGGER_EXEC_THREAD, AcpiDbMethodThread, 823 &AcpiGbl_DbMethodInfo); 824 if (ACPI_FAILURE (Status)) 825 { 826 break; 827 } 828 } 829 830 /* Wait for all threads to complete */ 831 832 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER); 833 834 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 835 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads); 836 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 837 838 CleanupAndExit: 839 840 /* Cleanup and exit */ 841 842 (void) AcpiOsDeleteSemaphore (MainThreadGate); 843 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 844 (void) AcpiOsDeleteSemaphore (InfoGate); 845 846 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads); 847 AcpiGbl_DbMethodInfo.Threads = NULL; 848 } 849 850 #endif /* ACPI_DEBUGGER */ 851