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 <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 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 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", 384 AcpiUtGetNodeName (Node), 385 AcpiFormatException (Status)); 386 387 AcpiGbl_MethodExecuting = FALSE; 388 return (AE_OK); 389 } 390 391 392 /******************************************************************************* 393 * 394 * FUNCTION: AcpiDbExecute 395 * 396 * PARAMETERS: Name - Name of method to execute 397 * Args - Parameters to the method 398 * Types - 399 * Flags - single step/no single step 400 * 401 * RETURN: None 402 * 403 * DESCRIPTION: Execute a control method. Name is relative to the current 404 * scope. 405 * 406 ******************************************************************************/ 407 408 void 409 AcpiDbExecute ( 410 char *Name, 411 char **Args, 412 ACPI_OBJECT_TYPE *Types, 413 UINT32 Flags) 414 { 415 ACPI_STATUS Status; 416 ACPI_BUFFER ReturnObj; 417 char *NameString; 418 419 #ifdef ACPI_DEBUG_OUTPUT 420 UINT32 PreviousAllocations; 421 UINT32 Allocations; 422 #endif 423 424 425 /* 426 * Allow one execution to be performed by debugger or single step 427 * execution will be dead locked by the interpreter mutexes. 428 */ 429 if (AcpiGbl_MethodExecuting) 430 { 431 AcpiOsPrintf ("Only one debugger execution is allowed.\n"); 432 return; 433 } 434 435 #ifdef ACPI_DEBUG_OUTPUT 436 /* Memory allocation tracking */ 437 438 PreviousAllocations = AcpiDbGetOutstandingAllocations (); 439 #endif 440 441 if (*Name == '*') 442 { 443 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, 444 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL); 445 return; 446 } 447 else 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)); 456 457 strcpy (NameString, Name); 458 AcpiUtStrupr (NameString); 459 AcpiGbl_DbMethodInfo.Name = NameString; 460 AcpiGbl_DbMethodInfo.Args = Args; 461 AcpiGbl_DbMethodInfo.Types = Types; 462 AcpiGbl_DbMethodInfo.Flags = Flags; 463 464 ReturnObj.Pointer = NULL; 465 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 466 467 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 468 if (ACPI_FAILURE (Status)) 469 { 470 ACPI_FREE (NameString); 471 return; 472 } 473 474 /* Get the NS node, determines existence also */ 475 476 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 477 &AcpiGbl_DbMethodInfo.Method); 478 if (ACPI_SUCCESS (Status)) 479 { 480 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, 481 &ReturnObj); 482 } 483 ACPI_FREE (NameString); 484 } 485 486 /* 487 * Allow any handlers in separate threads to complete. 488 * (Such as Notify handlers invoked from AML executed above). 489 */ 490 AcpiOsSleep ((UINT64) 10); 491 492 #ifdef ACPI_DEBUG_OUTPUT 493 494 /* Memory allocation tracking */ 495 496 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 497 498 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 499 500 if (Allocations > 0) 501 { 502 AcpiOsPrintf ( 503 "0x%X Outstanding allocations after evaluation of %s\n", 504 Allocations, AcpiGbl_DbMethodInfo.Pathname); 505 } 506 #endif 507 508 if (ACPI_FAILURE (Status)) 509 { 510 AcpiOsPrintf ("Evaluation of %s failed with status %s\n", 511 AcpiGbl_DbMethodInfo.Pathname, 512 AcpiFormatException (Status)); 513 } 514 else 515 { 516 /* Display a return object, if any */ 517 518 if (ReturnObj.Length) 519 { 520 AcpiOsPrintf ( 521 "Evaluation of %s returned object %p, " 522 "external buffer length %X\n", 523 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 524 (UINT32) ReturnObj.Length); 525 526 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 527 528 /* Dump a _PLD buffer if present */ 529 530 if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 531 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), 532 METHOD_NAME__PLD)) 533 { 534 AcpiDbDumpPldBuffer (ReturnObj.Pointer); 535 } 536 } 537 else 538 { 539 AcpiOsPrintf ("No object was returned from evaluation of %s\n", 540 AcpiGbl_DbMethodInfo.Pathname); 541 } 542 } 543 544 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 545 } 546 547 548 /******************************************************************************* 549 * 550 * FUNCTION: AcpiDbMethodThread 551 * 552 * PARAMETERS: Context - Execution info segment 553 * 554 * RETURN: None 555 * 556 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 557 * simply dispatches it. 558 * 559 ******************************************************************************/ 560 561 static void ACPI_SYSTEM_XFACE 562 AcpiDbMethodThread ( 563 void *Context) 564 { 565 ACPI_STATUS Status; 566 ACPI_DB_METHOD_INFO *Info = Context; 567 ACPI_DB_METHOD_INFO LocalInfo; 568 UINT32 i; 569 UINT8 Allow; 570 ACPI_BUFFER ReturnObj; 571 572 573 /* 574 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 575 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 576 * concurrently. 577 * 578 * Note: The arguments we are passing are used by the ASL test suite 579 * (aslts). Do not change them without updating the tests. 580 */ 581 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 582 583 if (Info->InitArgs) 584 { 585 AcpiDbUint32ToHexString (Info->NumCreated, 586 Info->IndexOfThreadStr); 587 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), 588 Info->IdOfThreadStr); 589 } 590 591 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 592 { 593 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 594 } 595 596 LocalInfo = *Info; 597 LocalInfo.Args = LocalInfo.Arguments; 598 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 599 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 600 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 601 LocalInfo.Arguments[3] = NULL; 602 603 LocalInfo.Types = LocalInfo.ArgTypes; 604 605 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 606 607 for (i = 0; i < Info->NumLoops; i++) 608 { 609 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 610 if (ACPI_FAILURE (Status)) 611 { 612 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n", 613 AcpiFormatException (Status), Info->Pathname, i); 614 if (Status == AE_ABORT_METHOD) 615 { 616 break; 617 } 618 } 619 620 #if 0 621 if ((i % 100) == 0) 622 { 623 AcpiOsPrintf ("%u loops, Thread 0x%x\n", 624 i, AcpiOsGetThreadId ()); 625 } 626 627 if (ReturnObj.Length) 628 { 629 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n", 630 Info->Pathname, ReturnObj.Pointer, 631 (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_EXEC_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