1 /******************************************************************************* 2 * 3 * Module Name: dbexec - debugger control method execution 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2016, 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 50 #define _COMPONENT ACPI_CA_DEBUGGER 51 ACPI_MODULE_NAME ("dbexec") 52 53 54 static ACPI_DB_METHOD_INFO AcpiGbl_DbMethodInfo; 55 56 /* Local prototypes */ 57 58 static ACPI_STATUS 59 AcpiDbExecuteMethod ( 60 ACPI_DB_METHOD_INFO *Info, 61 ACPI_BUFFER *ReturnObj); 62 63 static ACPI_STATUS 64 AcpiDbExecuteSetup ( 65 ACPI_DB_METHOD_INFO *Info); 66 67 static UINT32 68 AcpiDbGetOutstandingAllocations ( 69 void); 70 71 static void ACPI_SYSTEM_XFACE 72 AcpiDbMethodThread ( 73 void *Context); 74 75 static ACPI_STATUS 76 AcpiDbExecutionWalk ( 77 ACPI_HANDLE ObjHandle, 78 UINT32 NestingLevel, 79 void *Context, 80 void **ReturnValue); 81 82 83 /******************************************************************************* 84 * 85 * FUNCTION: AcpiDbDeleteObjects 86 * 87 * PARAMETERS: Count - Count of objects in the list 88 * Objects - Array of ACPI_OBJECTs to be deleted 89 * 90 * RETURN: None 91 * 92 * DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested 93 * packages via recursion. 94 * 95 ******************************************************************************/ 96 97 void 98 AcpiDbDeleteObjects ( 99 UINT32 Count, 100 ACPI_OBJECT *Objects) 101 { 102 UINT32 i; 103 104 105 for (i = 0; i < Count; i++) 106 { 107 switch (Objects[i].Type) 108 { 109 case ACPI_TYPE_BUFFER: 110 111 ACPI_FREE (Objects[i].Buffer.Pointer); 112 break; 113 114 case ACPI_TYPE_PACKAGE: 115 116 /* Recursive call to delete package elements */ 117 118 AcpiDbDeleteObjects (Objects[i].Package.Count, 119 Objects[i].Package.Elements); 120 121 /* Free the elements array */ 122 123 ACPI_FREE (Objects[i].Package.Elements); 124 break; 125 126 default: 127 128 break; 129 } 130 } 131 } 132 133 134 /******************************************************************************* 135 * 136 * FUNCTION: AcpiDbExecuteMethod 137 * 138 * PARAMETERS: Info - Valid info segment 139 * ReturnObj - Where to put return object 140 * 141 * RETURN: Status 142 * 143 * DESCRIPTION: Execute a control method. 144 * 145 ******************************************************************************/ 146 147 static ACPI_STATUS 148 AcpiDbExecuteMethod ( 149 ACPI_DB_METHOD_INFO *Info, 150 ACPI_BUFFER *ReturnObj) 151 { 152 ACPI_STATUS Status; 153 ACPI_OBJECT_LIST ParamObjects; 154 ACPI_OBJECT Params[ACPI_DEBUGGER_MAX_ARGS + 1]; 155 UINT32 i; 156 157 158 ACPI_FUNCTION_TRACE (DbExecuteMethod); 159 160 161 if (AcpiGbl_DbOutputToFile && !AcpiDbgLevel) 162 { 163 AcpiOsPrintf ("Warning: debug output is not enabled!\n"); 164 } 165 166 ParamObjects.Count = 0; 167 ParamObjects.Pointer = NULL; 168 169 /* Pass through any command-line arguments */ 170 171 if (Info->Args && Info->Args[0]) 172 { 173 /* Get arguments passed on the command line */ 174 175 for (i = 0; (Info->Args[i] && *(Info->Args[i])); i++) 176 { 177 /* Convert input string (token) to an actual ACPI_OBJECT */ 178 179 Status = AcpiDbConvertToObject (Info->Types[i], 180 Info->Args[i], &Params[i]); 181 if (ACPI_FAILURE (Status)) 182 { 183 ACPI_EXCEPTION ((AE_INFO, Status, 184 "While parsing method arguments")); 185 goto Cleanup; 186 } 187 } 188 189 ParamObjects.Count = i; 190 ParamObjects.Pointer = Params; 191 } 192 193 /* Prepare for a return object of arbitrary size */ 194 195 ReturnObj->Pointer = AcpiGbl_DbBuffer; 196 ReturnObj->Length = ACPI_DEBUG_BUFFER_SIZE; 197 198 /* Do the actual method execution */ 199 200 AcpiGbl_MethodExecuting = TRUE; 201 Status = AcpiEvaluateObject (NULL, Info->Pathname, 202 &ParamObjects, ReturnObj); 203 204 AcpiGbl_CmSingleStep = FALSE; 205 AcpiGbl_MethodExecuting = FALSE; 206 207 if (ACPI_FAILURE (Status)) 208 { 209 ACPI_EXCEPTION ((AE_INFO, Status, 210 "while executing %s from debugger", Info->Pathname)); 211 212 if (Status == AE_BUFFER_OVERFLOW) 213 { 214 ACPI_ERROR ((AE_INFO, 215 "Possible overflow of internal debugger " 216 "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 #ifdef ACPI_DEBUG_OUTPUT 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 #endif 339 340 341 /******************************************************************************* 342 * 343 * FUNCTION: AcpiDbExecutionWalk 344 * 345 * PARAMETERS: WALK_CALLBACK 346 * 347 * RETURN: Status 348 * 349 * DESCRIPTION: Execute a control method. Name is relative to the current 350 * scope. 351 * 352 ******************************************************************************/ 353 354 static ACPI_STATUS 355 AcpiDbExecutionWalk ( 356 ACPI_HANDLE ObjHandle, 357 UINT32 NestingLevel, 358 void *Context, 359 void **ReturnValue) 360 { 361 ACPI_OPERAND_OBJECT *ObjDesc; 362 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 363 ACPI_BUFFER ReturnObj; 364 ACPI_STATUS Status; 365 366 367 ObjDesc = AcpiNsGetAttachedObject (Node); 368 if (ObjDesc->Method.ParamCount) 369 { 370 return (AE_OK); 371 } 372 373 ReturnObj.Pointer = NULL; 374 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 375 376 AcpiNsPrintNodePathname (Node, "Evaluating"); 377 378 /* Do the actual method execution */ 379 380 AcpiOsPrintf ("\n"); 381 AcpiGbl_MethodExecuting = TRUE; 382 383 Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj); 384 385 AcpiOsPrintf ("Evaluation of [%4.4s] returned %s\n", 386 AcpiUtGetNodeName (Node), 387 AcpiFormatException (Status)); 388 389 AcpiGbl_MethodExecuting = FALSE; 390 return (AE_OK); 391 } 392 393 394 /******************************************************************************* 395 * 396 * FUNCTION: AcpiDbExecute 397 * 398 * PARAMETERS: Name - Name of method to execute 399 * Args - Parameters to the method 400 * Types - 401 * Flags - single step/no single step 402 * 403 * RETURN: None 404 * 405 * DESCRIPTION: Execute a control method. Name is relative to the current 406 * scope. 407 * 408 ******************************************************************************/ 409 410 void 411 AcpiDbExecute ( 412 char *Name, 413 char **Args, 414 ACPI_OBJECT_TYPE *Types, 415 UINT32 Flags) 416 { 417 ACPI_STATUS Status; 418 ACPI_BUFFER ReturnObj; 419 char *NameString; 420 421 #ifdef ACPI_DEBUG_OUTPUT 422 UINT32 PreviousAllocations; 423 UINT32 Allocations; 424 #endif 425 426 427 /* 428 * Allow one execution to be performed by debugger or single step 429 * execution will be dead locked by the interpreter mutexes. 430 */ 431 if (AcpiGbl_MethodExecuting) 432 { 433 AcpiOsPrintf ("Only one debugger execution is allowed.\n"); 434 return; 435 } 436 437 #ifdef ACPI_DEBUG_OUTPUT 438 /* Memory allocation tracking */ 439 440 PreviousAllocations = AcpiDbGetOutstandingAllocations (); 441 #endif 442 443 if (*Name == '*') 444 { 445 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, 446 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL); 447 return; 448 } 449 else 450 { 451 NameString = ACPI_ALLOCATE (strlen (Name) + 1); 452 if (!NameString) 453 { 454 return; 455 } 456 457 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 458 459 strcpy (NameString, Name); 460 AcpiUtStrupr (NameString); 461 AcpiGbl_DbMethodInfo.Name = NameString; 462 AcpiGbl_DbMethodInfo.Args = Args; 463 AcpiGbl_DbMethodInfo.Types = Types; 464 AcpiGbl_DbMethodInfo.Flags = Flags; 465 466 ReturnObj.Pointer = NULL; 467 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 468 469 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 470 if (ACPI_FAILURE (Status)) 471 { 472 ACPI_FREE (NameString); 473 return; 474 } 475 476 /* Get the NS node, determines existence also */ 477 478 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 479 &AcpiGbl_DbMethodInfo.Method); 480 if (ACPI_SUCCESS (Status)) 481 { 482 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, 483 &ReturnObj); 484 } 485 ACPI_FREE (NameString); 486 } 487 488 /* 489 * Allow any handlers in separate threads to complete. 490 * (Such as Notify handlers invoked from AML executed above). 491 */ 492 AcpiOsSleep ((UINT64) 10); 493 494 #ifdef ACPI_DEBUG_OUTPUT 495 496 /* Memory allocation tracking */ 497 498 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 499 500 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 501 502 if (Allocations > 0) 503 { 504 AcpiOsPrintf ( 505 "0x%X Outstanding allocations after evaluation of %s\n", 506 Allocations, AcpiGbl_DbMethodInfo.Pathname); 507 } 508 #endif 509 510 if (ACPI_FAILURE (Status)) 511 { 512 AcpiOsPrintf ("Evaluation of %s failed with status %s\n", 513 AcpiGbl_DbMethodInfo.Pathname, 514 AcpiFormatException (Status)); 515 } 516 else 517 { 518 /* Display a return object, if any */ 519 520 if (ReturnObj.Length) 521 { 522 AcpiOsPrintf ( 523 "Evaluation of %s returned object %p, " 524 "external buffer length %X\n", 525 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 526 (UINT32) ReturnObj.Length); 527 528 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 529 530 /* Dump a _PLD buffer if present */ 531 532 if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 533 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), 534 METHOD_NAME__PLD)) 535 { 536 AcpiDbDumpPldBuffer (ReturnObj.Pointer); 537 } 538 } 539 else 540 { 541 AcpiOsPrintf ("No object was returned from evaluation of %s\n", 542 AcpiGbl_DbMethodInfo.Pathname); 543 } 544 } 545 546 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 547 } 548 549 550 /******************************************************************************* 551 * 552 * FUNCTION: AcpiDbMethodThread 553 * 554 * PARAMETERS: Context - Execution info segment 555 * 556 * RETURN: None 557 * 558 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 559 * simply dispatches it. 560 * 561 ******************************************************************************/ 562 563 static void ACPI_SYSTEM_XFACE 564 AcpiDbMethodThread ( 565 void *Context) 566 { 567 ACPI_STATUS Status; 568 ACPI_DB_METHOD_INFO *Info = Context; 569 ACPI_DB_METHOD_INFO LocalInfo; 570 UINT32 i; 571 UINT8 Allow; 572 ACPI_BUFFER ReturnObj; 573 574 575 /* 576 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 577 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 578 * concurrently. 579 * 580 * Note: The arguments we are passing are used by the ASL test suite 581 * (aslts). Do not change them without updating the tests. 582 */ 583 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 584 585 if (Info->InitArgs) 586 { 587 AcpiDbUint32ToHexString (Info->NumCreated, 588 Info->IndexOfThreadStr); 589 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), 590 Info->IdOfThreadStr); 591 } 592 593 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 594 { 595 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 596 } 597 598 LocalInfo = *Info; 599 LocalInfo.Args = LocalInfo.Arguments; 600 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 601 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 602 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 603 LocalInfo.Arguments[3] = NULL; 604 605 LocalInfo.Types = LocalInfo.ArgTypes; 606 607 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 608 609 for (i = 0; i < Info->NumLoops; i++) 610 { 611 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 612 if (ACPI_FAILURE (Status)) 613 { 614 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n", 615 AcpiFormatException (Status), Info->Pathname, i); 616 if (Status == AE_ABORT_METHOD) 617 { 618 break; 619 } 620 } 621 622 #if 0 623 if ((i % 100) == 0) 624 { 625 AcpiOsPrintf ("%u loops, Thread 0x%x\n", 626 i, AcpiOsGetThreadId ()); 627 } 628 629 if (ReturnObj.Length) 630 { 631 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n", 632 Info->Pathname, ReturnObj.Pointer, 633 (UINT32) ReturnObj.Length); 634 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 635 } 636 #endif 637 } 638 639 /* Signal our completion */ 640 641 Allow = 0; 642 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 643 1, ACPI_WAIT_FOREVER); 644 Info->NumCompleted++; 645 646 if (Info->NumCompleted == Info->NumThreads) 647 { 648 /* Do signal for main thread once only */ 649 Allow = 1; 650 } 651 652 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1); 653 654 if (Allow) 655 { 656 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1); 657 if (ACPI_FAILURE (Status)) 658 { 659 AcpiOsPrintf ( 660 "Could not signal debugger thread sync semaphore, %s\n", 661 AcpiFormatException (Status)); 662 } 663 } 664 } 665 666 667 /******************************************************************************* 668 * 669 * FUNCTION: AcpiDbCreateExecutionThreads 670 * 671 * PARAMETERS: NumThreadsArg - Number of threads to create 672 * NumLoopsArg - Loop count for the thread(s) 673 * MethodNameArg - Control method to execute 674 * 675 * RETURN: None 676 * 677 * DESCRIPTION: Create threads to execute method(s) 678 * 679 ******************************************************************************/ 680 681 void 682 AcpiDbCreateExecutionThreads ( 683 char *NumThreadsArg, 684 char *NumLoopsArg, 685 char *MethodNameArg) 686 { 687 ACPI_STATUS Status; 688 UINT32 NumThreads; 689 UINT32 NumLoops; 690 UINT32 i; 691 UINT32 Size; 692 ACPI_MUTEX MainThreadGate; 693 ACPI_MUTEX ThreadCompleteGate; 694 ACPI_MUTEX InfoGate; 695 696 697 /* Get the arguments */ 698 699 NumThreads = strtoul (NumThreadsArg, NULL, 0); 700 NumLoops = strtoul (NumLoopsArg, NULL, 0); 701 702 if (!NumThreads || !NumLoops) 703 { 704 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", 705 NumThreads, NumLoops); 706 return; 707 } 708 709 /* 710 * Create the semaphore for synchronization of 711 * the created threads with the main thread. 712 */ 713 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate); 714 if (ACPI_FAILURE (Status)) 715 { 716 AcpiOsPrintf ("Could not create semaphore for " 717 "synchronization with the main thread, %s\n", 718 AcpiFormatException (Status)); 719 return; 720 } 721 722 /* 723 * Create the semaphore for synchronization 724 * between the created threads. 725 */ 726 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate); 727 if (ACPI_FAILURE (Status)) 728 { 729 AcpiOsPrintf ("Could not create semaphore for " 730 "synchronization between the created threads, %s\n", 731 AcpiFormatException (Status)); 732 733 (void) AcpiOsDeleteSemaphore (MainThreadGate); 734 return; 735 } 736 737 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate); 738 if (ACPI_FAILURE (Status)) 739 { 740 AcpiOsPrintf ("Could not create semaphore for " 741 "synchronization of AcpiGbl_DbMethodInfo, %s\n", 742 AcpiFormatException (Status)); 743 744 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 745 (void) AcpiOsDeleteSemaphore (MainThreadGate); 746 return; 747 } 748 749 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 750 751 /* Array to store IDs of threads */ 752 753 AcpiGbl_DbMethodInfo.NumThreads = NumThreads; 754 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads; 755 756 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size); 757 if (AcpiGbl_DbMethodInfo.Threads == NULL) 758 { 759 AcpiOsPrintf ("No memory for thread IDs array\n"); 760 (void) AcpiOsDeleteSemaphore (MainThreadGate); 761 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 762 (void) AcpiOsDeleteSemaphore (InfoGate); 763 return; 764 } 765 memset (AcpiGbl_DbMethodInfo.Threads, 0, Size); 766 767 /* Setup the context to be passed to each thread */ 768 769 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 770 AcpiGbl_DbMethodInfo.Flags = 0; 771 AcpiGbl_DbMethodInfo.NumLoops = NumLoops; 772 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate; 773 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate; 774 AcpiGbl_DbMethodInfo.InfoGate = InfoGate; 775 776 /* Init arguments to be passed to method */ 777 778 AcpiGbl_DbMethodInfo.InitArgs = 1; 779 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 780 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr; 781 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr; 782 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr; 783 AcpiGbl_DbMethodInfo.Arguments[3] = NULL; 784 785 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes; 786 AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER; 787 AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER; 788 AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER; 789 790 AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr); 791 792 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 793 if (ACPI_FAILURE (Status)) 794 { 795 goto CleanupAndExit; 796 } 797 798 /* Get the NS node, determines existence also */ 799 800 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 801 &AcpiGbl_DbMethodInfo.Method); 802 if (ACPI_FAILURE (Status)) 803 { 804 AcpiOsPrintf ("%s Could not get handle for %s\n", 805 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname); 806 goto CleanupAndExit; 807 } 808 809 /* Create the threads */ 810 811 AcpiOsPrintf ("Creating %X threads to execute %X times each\n", 812 NumThreads, NumLoops); 813 814 for (i = 0; i < (NumThreads); i++) 815 { 816 Status = AcpiOsExecute (OSL_DEBUGGER_EXEC_THREAD, AcpiDbMethodThread, 817 &AcpiGbl_DbMethodInfo); 818 if (ACPI_FAILURE (Status)) 819 { 820 break; 821 } 822 } 823 824 /* Wait for all threads to complete */ 825 826 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER); 827 828 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 829 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads); 830 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 831 832 CleanupAndExit: 833 834 /* Cleanup and exit */ 835 836 (void) AcpiOsDeleteSemaphore (MainThreadGate); 837 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 838 (void) AcpiOsDeleteSemaphore (InfoGate); 839 840 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads); 841 AcpiGbl_DbMethodInfo.Threads = NULL; 842 } 843