1 /******************************************************************************* 2 * 3 * Module Name: dbexec - debugger control method execution 4 * 5 ******************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2019, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 #include "accommon.h" 154 #include "acdebug.h" 155 #include "acnamesp.h" 156 157 #ifdef ACPI_DEBUGGER 158 159 #define _COMPONENT ACPI_CA_DEBUGGER 160 ACPI_MODULE_NAME ("dbexec") 161 162 163 static ACPI_DB_METHOD_INFO AcpiGbl_DbMethodInfo; 164 165 /* Local prototypes */ 166 167 static ACPI_STATUS 168 AcpiDbExecuteMethod ( 169 ACPI_DB_METHOD_INFO *Info, 170 ACPI_BUFFER *ReturnObj); 171 172 static ACPI_STATUS 173 AcpiDbExecuteSetup ( 174 ACPI_DB_METHOD_INFO *Info); 175 176 static UINT32 177 AcpiDbGetOutstandingAllocations ( 178 void); 179 180 static void ACPI_SYSTEM_XFACE 181 AcpiDbMethodThread ( 182 void *Context); 183 184 static ACPI_STATUS 185 AcpiDbExecutionWalk ( 186 ACPI_HANDLE ObjHandle, 187 UINT32 NestingLevel, 188 void *Context, 189 void **ReturnValue); 190 191 static void ACPI_SYSTEM_XFACE 192 AcpiDbSingleExecutionThread ( 193 void *Context); 194 195 196 /******************************************************************************* 197 * 198 * FUNCTION: AcpiDbDeleteObjects 199 * 200 * PARAMETERS: Count - Count of objects in the list 201 * Objects - Array of ACPI_OBJECTs to be deleted 202 * 203 * RETURN: None 204 * 205 * DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested 206 * packages via recursion. 207 * 208 ******************************************************************************/ 209 210 void 211 AcpiDbDeleteObjects ( 212 UINT32 Count, 213 ACPI_OBJECT *Objects) 214 { 215 UINT32 i; 216 217 218 for (i = 0; i < Count; i++) 219 { 220 switch (Objects[i].Type) 221 { 222 case ACPI_TYPE_BUFFER: 223 224 ACPI_FREE (Objects[i].Buffer.Pointer); 225 break; 226 227 case ACPI_TYPE_PACKAGE: 228 229 /* Recursive call to delete package elements */ 230 231 AcpiDbDeleteObjects (Objects[i].Package.Count, 232 Objects[i].Package.Elements); 233 234 /* Free the elements array */ 235 236 ACPI_FREE (Objects[i].Package.Elements); 237 break; 238 239 default: 240 241 break; 242 } 243 } 244 } 245 246 247 /******************************************************************************* 248 * 249 * FUNCTION: AcpiDbExecuteMethod 250 * 251 * PARAMETERS: Info - Valid info segment 252 * ReturnObj - Where to put return object 253 * 254 * RETURN: Status 255 * 256 * DESCRIPTION: Execute a control method. 257 * 258 ******************************************************************************/ 259 260 static ACPI_STATUS 261 AcpiDbExecuteMethod ( 262 ACPI_DB_METHOD_INFO *Info, 263 ACPI_BUFFER *ReturnObj) 264 { 265 ACPI_STATUS Status; 266 ACPI_OBJECT_LIST ParamObjects; 267 ACPI_OBJECT Params[ACPI_DEBUGGER_MAX_ARGS + 1]; 268 UINT32 i; 269 270 271 ACPI_FUNCTION_TRACE (DbExecuteMethod); 272 273 274 if (AcpiGbl_DbOutputToFile && !AcpiDbgLevel) 275 { 276 AcpiOsPrintf ("Warning: debug output is not enabled!\n"); 277 } 278 279 ParamObjects.Count = 0; 280 ParamObjects.Pointer = NULL; 281 282 /* Pass through any command-line arguments */ 283 284 if (Info->Args && Info->Args[0]) 285 { 286 /* Get arguments passed on the command line */ 287 288 for (i = 0; (Info->Args[i] && *(Info->Args[i])); i++) 289 { 290 /* Convert input string (token) to an actual ACPI_OBJECT */ 291 292 Status = AcpiDbConvertToObject (Info->Types[i], 293 Info->Args[i], &Params[i]); 294 if (ACPI_FAILURE (Status)) 295 { 296 ACPI_EXCEPTION ((AE_INFO, Status, 297 "While parsing method arguments")); 298 goto Cleanup; 299 } 300 } 301 302 ParamObjects.Count = i; 303 ParamObjects.Pointer = Params; 304 } 305 306 /* Prepare for a return object of arbitrary size */ 307 308 ReturnObj->Pointer = AcpiGbl_DbBuffer; 309 ReturnObj->Length = ACPI_DEBUG_BUFFER_SIZE; 310 311 /* Do the actual method execution */ 312 313 AcpiGbl_MethodExecuting = TRUE; 314 Status = AcpiEvaluateObject (NULL, Info->Pathname, 315 &ParamObjects, ReturnObj); 316 317 AcpiGbl_CmSingleStep = FALSE; 318 AcpiGbl_MethodExecuting = FALSE; 319 320 if (ACPI_FAILURE (Status)) 321 { 322 if ((Status == AE_ABORT_METHOD) || AcpiGbl_AbortMethod) 323 { 324 /* Clear the abort and fall back to the debugger prompt */ 325 326 ACPI_EXCEPTION ((AE_INFO, Status, 327 "Aborting top-level method")); 328 329 AcpiGbl_AbortMethod = FALSE; 330 Status = AE_OK; 331 goto Cleanup; 332 } 333 334 ACPI_EXCEPTION ((AE_INFO, Status, 335 "while executing %s from AML Debugger", Info->Pathname)); 336 337 if (Status == AE_BUFFER_OVERFLOW) 338 { 339 ACPI_ERROR ((AE_INFO, 340 "Possible buffer overflow within AML Debugger " 341 "buffer (size 0x%X needed 0x%X)", 342 ACPI_DEBUG_BUFFER_SIZE, (UINT32) ReturnObj->Length)); 343 } 344 } 345 346 Cleanup: 347 AcpiDbDeleteObjects (ParamObjects.Count, Params); 348 return_ACPI_STATUS (Status); 349 } 350 351 352 /******************************************************************************* 353 * 354 * FUNCTION: AcpiDbExecuteSetup 355 * 356 * PARAMETERS: Info - Valid method info 357 * 358 * RETURN: None 359 * 360 * DESCRIPTION: Setup info segment prior to method execution 361 * 362 ******************************************************************************/ 363 364 static ACPI_STATUS 365 AcpiDbExecuteSetup ( 366 ACPI_DB_METHOD_INFO *Info) 367 { 368 ACPI_STATUS Status; 369 370 371 ACPI_FUNCTION_NAME (DbExecuteSetup); 372 373 374 /* Concatenate the current scope to the supplied name */ 375 376 Info->Pathname[0] = 0; 377 if ((Info->Name[0] != '\\') && 378 (Info->Name[0] != '/')) 379 { 380 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname), 381 AcpiGbl_DbScopeBuf)) 382 { 383 Status = AE_BUFFER_OVERFLOW; 384 goto ErrorExit; 385 } 386 } 387 388 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname), 389 Info->Name)) 390 { 391 Status = AE_BUFFER_OVERFLOW; 392 goto ErrorExit; 393 } 394 395 AcpiDbPrepNamestring (Info->Pathname); 396 397 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 398 AcpiOsPrintf ("Evaluating %s\n", Info->Pathname); 399 400 if (Info->Flags & EX_SINGLE_STEP) 401 { 402 AcpiGbl_CmSingleStep = TRUE; 403 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 404 } 405 406 else 407 { 408 /* No single step, allow redirection to a file */ 409 410 AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT); 411 } 412 413 return (AE_OK); 414 415 ErrorExit: 416 417 ACPI_EXCEPTION ((AE_INFO, Status, "During setup for method execution")); 418 return (Status); 419 } 420 421 422 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 423 UINT32 424 AcpiDbGetCacheInfo ( 425 ACPI_MEMORY_LIST *Cache) 426 { 427 428 return (Cache->TotalAllocated - Cache->TotalFreed - Cache->CurrentDepth); 429 } 430 #endif 431 432 /******************************************************************************* 433 * 434 * FUNCTION: AcpiDbGetOutstandingAllocations 435 * 436 * PARAMETERS: None 437 * 438 * RETURN: Current global allocation count minus cache entries 439 * 440 * DESCRIPTION: Determine the current number of "outstanding" allocations -- 441 * those allocations that have not been freed and also are not 442 * in one of the various object caches. 443 * 444 ******************************************************************************/ 445 446 static UINT32 447 AcpiDbGetOutstandingAllocations ( 448 void) 449 { 450 UINT32 Outstanding = 0; 451 452 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 453 454 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_StateCache); 455 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeCache); 456 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeExtCache); 457 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_OperandCache); 458 #endif 459 460 return (Outstanding); 461 } 462 463 464 /******************************************************************************* 465 * 466 * FUNCTION: AcpiDbExecutionWalk 467 * 468 * PARAMETERS: WALK_CALLBACK 469 * 470 * RETURN: Status 471 * 472 * DESCRIPTION: Execute a control method. Name is relative to the current 473 * scope. 474 * 475 ******************************************************************************/ 476 477 static ACPI_STATUS 478 AcpiDbExecutionWalk ( 479 ACPI_HANDLE ObjHandle, 480 UINT32 NestingLevel, 481 void *Context, 482 void **ReturnValue) 483 { 484 ACPI_OPERAND_OBJECT *ObjDesc; 485 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 486 ACPI_BUFFER ReturnObj; 487 ACPI_STATUS Status; 488 489 490 ObjDesc = AcpiNsGetAttachedObject (Node); 491 if (ObjDesc->Method.ParamCount) 492 { 493 return (AE_OK); 494 } 495 496 ReturnObj.Pointer = NULL; 497 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 498 499 AcpiNsPrintNodePathname (Node, "Evaluating"); 500 501 /* Do the actual method execution */ 502 503 AcpiOsPrintf ("\n"); 504 AcpiGbl_MethodExecuting = TRUE; 505 506 Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj); 507 508 AcpiOsPrintf ("Evaluation of [%4.4s] returned %s\n", 509 AcpiUtGetNodeName (Node), 510 AcpiFormatException (Status)); 511 512 AcpiGbl_MethodExecuting = FALSE; 513 return (AE_OK); 514 } 515 516 517 /******************************************************************************* 518 * 519 * FUNCTION: AcpiDbExecute 520 * 521 * PARAMETERS: Name - Name of method to execute 522 * Args - Parameters to the method 523 * Types - 524 * Flags - single step/no single step 525 * 526 * RETURN: None 527 * 528 * DESCRIPTION: Execute a control method. Name is relative to the current 529 * scope. 530 * 531 ******************************************************************************/ 532 533 void 534 AcpiDbExecute ( 535 char *Name, 536 char **Args, 537 ACPI_OBJECT_TYPE *Types, 538 UINT32 Flags) 539 { 540 ACPI_STATUS Status; 541 ACPI_BUFFER ReturnObj; 542 char *NameString; 543 544 #ifdef ACPI_DEBUG_OUTPUT 545 UINT32 PreviousAllocations; 546 UINT32 Allocations; 547 #endif 548 549 550 /* 551 * Allow one execution to be performed by debugger or single step 552 * execution will be dead locked by the interpreter mutexes. 553 */ 554 if (AcpiGbl_MethodExecuting) 555 { 556 AcpiOsPrintf ("Only one debugger execution is allowed.\n"); 557 return; 558 } 559 560 #ifdef ACPI_DEBUG_OUTPUT 561 /* Memory allocation tracking */ 562 563 PreviousAllocations = AcpiDbGetOutstandingAllocations (); 564 #endif 565 566 if (*Name == '*') 567 { 568 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, 569 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL); 570 return; 571 } 572 573 NameString = ACPI_ALLOCATE (strlen (Name) + 1); 574 if (!NameString) 575 { 576 return; 577 } 578 579 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 580 strcpy (NameString, Name); 581 AcpiUtStrupr (NameString); 582 583 /* Subcommand to Execute all predefined names in the namespace */ 584 585 if (!strncmp (NameString, "PREDEF", 6)) 586 { 587 AcpiDbEvaluatePredefinedNames (); 588 ACPI_FREE (NameString); 589 return; 590 } 591 592 AcpiGbl_DbMethodInfo.Name = NameString; 593 AcpiGbl_DbMethodInfo.Args = Args; 594 AcpiGbl_DbMethodInfo.Types = Types; 595 AcpiGbl_DbMethodInfo.Flags = Flags; 596 597 ReturnObj.Pointer = NULL; 598 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 599 600 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 601 if (ACPI_FAILURE (Status)) 602 { 603 ACPI_FREE (NameString); 604 return; 605 } 606 607 /* Get the NS node, determines existence also */ 608 609 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 610 &AcpiGbl_DbMethodInfo.Method); 611 if (ACPI_SUCCESS (Status)) 612 { 613 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, 614 &ReturnObj); 615 } 616 ACPI_FREE (NameString); 617 618 /* 619 * Allow any handlers in separate threads to complete. 620 * (Such as Notify handlers invoked from AML executed above). 621 */ 622 AcpiOsSleep ((UINT64) 10); 623 624 #ifdef ACPI_DEBUG_OUTPUT 625 626 /* Memory allocation tracking */ 627 628 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 629 630 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 631 632 if (Allocations > 0) 633 { 634 AcpiOsPrintf ( 635 "0x%X Outstanding allocations after evaluation of %s\n", 636 Allocations, AcpiGbl_DbMethodInfo.Pathname); 637 } 638 #endif 639 640 if (ACPI_FAILURE (Status)) 641 { 642 AcpiOsPrintf ("Evaluation of %s failed with status %s\n", 643 AcpiGbl_DbMethodInfo.Pathname, 644 AcpiFormatException (Status)); 645 } 646 else 647 { 648 /* Display a return object, if any */ 649 650 if (ReturnObj.Length) 651 { 652 AcpiOsPrintf ( 653 "Evaluation of %s returned object %p, " 654 "external buffer length %X\n", 655 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 656 (UINT32) ReturnObj.Length); 657 658 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 659 660 /* Dump a _PLD buffer if present */ 661 662 if (ACPI_COMPARE_NAMESEG ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 663 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), 664 METHOD_NAME__PLD)) 665 { 666 AcpiDbDumpPldBuffer (ReturnObj.Pointer); 667 } 668 } 669 else 670 { 671 AcpiOsPrintf ("No object was returned from evaluation of %s\n", 672 AcpiGbl_DbMethodInfo.Pathname); 673 } 674 } 675 676 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 677 } 678 679 680 /******************************************************************************* 681 * 682 * FUNCTION: AcpiDbMethodThread 683 * 684 * PARAMETERS: Context - Execution info segment 685 * 686 * RETURN: None 687 * 688 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 689 * simply dispatches it. 690 * 691 ******************************************************************************/ 692 693 static void ACPI_SYSTEM_XFACE 694 AcpiDbMethodThread ( 695 void *Context) 696 { 697 ACPI_STATUS Status; 698 ACPI_DB_METHOD_INFO *Info = Context; 699 ACPI_DB_METHOD_INFO LocalInfo; 700 UINT32 i; 701 UINT8 Allow; 702 ACPI_BUFFER ReturnObj; 703 704 705 /* 706 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 707 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 708 * concurrently. 709 * 710 * Note: The arguments we are passing are used by the ASL test suite 711 * (aslts). Do not change them without updating the tests. 712 */ 713 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 714 715 if (Info->InitArgs) 716 { 717 AcpiDbUint32ToHexString (Info->NumCreated, 718 Info->IndexOfThreadStr); 719 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), 720 Info->IdOfThreadStr); 721 } 722 723 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 724 { 725 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 726 } 727 728 LocalInfo = *Info; 729 LocalInfo.Args = LocalInfo.Arguments; 730 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 731 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 732 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 733 LocalInfo.Arguments[3] = NULL; 734 735 LocalInfo.Types = LocalInfo.ArgTypes; 736 737 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 738 739 for (i = 0; i < Info->NumLoops; i++) 740 { 741 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 742 if (ACPI_FAILURE (Status)) 743 { 744 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n", 745 AcpiFormatException (Status), Info->Pathname, i); 746 if (Status == AE_ABORT_METHOD) 747 { 748 break; 749 } 750 } 751 752 #if 0 753 if ((i % 100) == 0) 754 { 755 AcpiOsPrintf ("%u loops, Thread 0x%x\n", 756 i, AcpiOsGetThreadId ()); 757 } 758 759 if (ReturnObj.Length) 760 { 761 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n", 762 Info->Pathname, ReturnObj.Pointer, 763 (UINT32) ReturnObj.Length); 764 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 765 } 766 #endif 767 } 768 769 /* Signal our completion */ 770 771 Allow = 0; 772 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 773 1, ACPI_WAIT_FOREVER); 774 Info->NumCompleted++; 775 776 if (Info->NumCompleted == Info->NumThreads) 777 { 778 /* Do signal for main thread once only */ 779 Allow = 1; 780 } 781 782 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1); 783 784 if (Allow) 785 { 786 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1); 787 if (ACPI_FAILURE (Status)) 788 { 789 AcpiOsPrintf ( 790 "Could not signal debugger thread sync semaphore, %s\n", 791 AcpiFormatException (Status)); 792 } 793 } 794 } 795 796 797 /******************************************************************************* 798 * 799 * FUNCTION: AcpiDbSingleExecutionThread 800 * 801 * PARAMETERS: Context - Method info struct 802 * 803 * RETURN: None 804 * 805 * DESCRIPTION: Create one thread and execute a method 806 * 807 ******************************************************************************/ 808 809 static void ACPI_SYSTEM_XFACE 810 AcpiDbSingleExecutionThread ( 811 void *Context) 812 { 813 ACPI_DB_METHOD_INFO *Info = Context; 814 ACPI_STATUS Status; 815 ACPI_BUFFER ReturnObj; 816 817 818 AcpiOsPrintf ("\n"); 819 820 Status = AcpiDbExecuteMethod (Info, &ReturnObj); 821 if (ACPI_FAILURE (Status)) 822 { 823 AcpiOsPrintf ("%s During evaluation of %s\n", 824 AcpiFormatException (Status), Info->Pathname); 825 return; 826 } 827 828 /* Display a return object, if any */ 829 830 if (ReturnObj.Length) 831 { 832 AcpiOsPrintf ("Evaluation of %s returned object %p, " 833 "external buffer length %X\n", 834 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 835 (UINT32) ReturnObj.Length); 836 837 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 838 } 839 840 AcpiOsPrintf ("\nBackground thread completed\n%c ", 841 ACPI_DEBUGGER_COMMAND_PROMPT); 842 } 843 844 845 /******************************************************************************* 846 * 847 * FUNCTION: AcpiDbCreateExecutionThread 848 * 849 * PARAMETERS: MethodNameArg - Control method to execute 850 * Arguments - Array of arguments to the method 851 * Types - Corresponding array of object types 852 * 853 * RETURN: None 854 * 855 * DESCRIPTION: Create a single thread to evaluate a namespace object. Handles 856 * arguments passed on command line for control methods. 857 * 858 ******************************************************************************/ 859 860 void 861 AcpiDbCreateExecutionThread ( 862 char *MethodNameArg, 863 char **Arguments, 864 ACPI_OBJECT_TYPE *Types) 865 { 866 ACPI_STATUS Status; 867 UINT32 i; 868 869 870 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 871 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 872 AcpiGbl_DbMethodInfo.InitArgs = 1; 873 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 874 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes; 875 876 /* Setup method arguments, up to 7 (0-6) */ 877 878 for (i = 0; (i < ACPI_METHOD_NUM_ARGS) && *Arguments; i++) 879 { 880 AcpiGbl_DbMethodInfo.Arguments[i] = *Arguments; 881 Arguments++; 882 883 AcpiGbl_DbMethodInfo.ArgTypes[i] = *Types; 884 Types++; 885 } 886 887 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 888 if (ACPI_FAILURE (Status)) 889 { 890 return; 891 } 892 893 /* Get the NS node, determines existence also */ 894 895 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 896 &AcpiGbl_DbMethodInfo.Method); 897 if (ACPI_FAILURE (Status)) 898 { 899 AcpiOsPrintf ("%s Could not get handle for %s\n", 900 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname); 901 return; 902 } 903 904 Status = AcpiOsExecute (OSL_DEBUGGER_EXEC_THREAD, 905 AcpiDbSingleExecutionThread, &AcpiGbl_DbMethodInfo); 906 if (ACPI_FAILURE (Status)) 907 { 908 return; 909 } 910 911 AcpiOsPrintf ("\nBackground thread started\n"); 912 } 913 914 915 /******************************************************************************* 916 * 917 * FUNCTION: AcpiDbCreateExecutionThreads 918 * 919 * PARAMETERS: NumThreadsArg - Number of threads to create 920 * NumLoopsArg - Loop count for the thread(s) 921 * MethodNameArg - Control method to execute 922 * 923 * RETURN: None 924 * 925 * DESCRIPTION: Create threads to execute method(s) 926 * 927 ******************************************************************************/ 928 929 void 930 AcpiDbCreateExecutionThreads ( 931 char *NumThreadsArg, 932 char *NumLoopsArg, 933 char *MethodNameArg) 934 { 935 ACPI_STATUS Status; 936 UINT32 NumThreads; 937 UINT32 NumLoops; 938 UINT32 i; 939 UINT32 Size; 940 ACPI_MUTEX MainThreadGate; 941 ACPI_MUTEX ThreadCompleteGate; 942 ACPI_MUTEX InfoGate; 943 944 945 /* Get the arguments */ 946 947 NumThreads = strtoul (NumThreadsArg, NULL, 0); 948 NumLoops = strtoul (NumLoopsArg, NULL, 0); 949 950 if (!NumThreads || !NumLoops) 951 { 952 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", 953 NumThreads, NumLoops); 954 return; 955 } 956 957 /* 958 * Create the semaphore for synchronization of 959 * the created threads with the main thread. 960 */ 961 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate); 962 if (ACPI_FAILURE (Status)) 963 { 964 AcpiOsPrintf ("Could not create semaphore for " 965 "synchronization with the main thread, %s\n", 966 AcpiFormatException (Status)); 967 return; 968 } 969 970 /* 971 * Create the semaphore for synchronization 972 * between the created threads. 973 */ 974 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate); 975 if (ACPI_FAILURE (Status)) 976 { 977 AcpiOsPrintf ("Could not create semaphore for " 978 "synchronization between the created threads, %s\n", 979 AcpiFormatException (Status)); 980 981 (void) AcpiOsDeleteSemaphore (MainThreadGate); 982 return; 983 } 984 985 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate); 986 if (ACPI_FAILURE (Status)) 987 { 988 AcpiOsPrintf ("Could not create semaphore for " 989 "synchronization of AcpiGbl_DbMethodInfo, %s\n", 990 AcpiFormatException (Status)); 991 992 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 993 (void) AcpiOsDeleteSemaphore (MainThreadGate); 994 return; 995 } 996 997 memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 998 999 /* Array to store IDs of threads */ 1000 1001 AcpiGbl_DbMethodInfo.NumThreads = NumThreads; 1002 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads; 1003 1004 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size); 1005 if (AcpiGbl_DbMethodInfo.Threads == NULL) 1006 { 1007 AcpiOsPrintf ("No memory for thread IDs array\n"); 1008 (void) AcpiOsDeleteSemaphore (MainThreadGate); 1009 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 1010 (void) AcpiOsDeleteSemaphore (InfoGate); 1011 return; 1012 } 1013 memset (AcpiGbl_DbMethodInfo.Threads, 0, Size); 1014 1015 /* Setup the context to be passed to each thread */ 1016 1017 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 1018 AcpiGbl_DbMethodInfo.Flags = 0; 1019 AcpiGbl_DbMethodInfo.NumLoops = NumLoops; 1020 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate; 1021 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate; 1022 AcpiGbl_DbMethodInfo.InfoGate = InfoGate; 1023 1024 /* Init arguments to be passed to method */ 1025 1026 AcpiGbl_DbMethodInfo.InitArgs = 1; 1027 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 1028 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr; 1029 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr; 1030 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr; 1031 AcpiGbl_DbMethodInfo.Arguments[3] = NULL; 1032 1033 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes; 1034 AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER; 1035 AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER; 1036 AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER; 1037 1038 AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr); 1039 1040 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 1041 if (ACPI_FAILURE (Status)) 1042 { 1043 goto CleanupAndExit; 1044 } 1045 1046 /* Get the NS node, determines existence also */ 1047 1048 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname, 1049 &AcpiGbl_DbMethodInfo.Method); 1050 if (ACPI_FAILURE (Status)) 1051 { 1052 AcpiOsPrintf ("%s Could not get handle for %s\n", 1053 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname); 1054 goto CleanupAndExit; 1055 } 1056 1057 /* Create the threads */ 1058 1059 AcpiOsPrintf ("Creating %X threads to execute %X times each\n", 1060 NumThreads, NumLoops); 1061 1062 for (i = 0; i < (NumThreads); i++) 1063 { 1064 Status = AcpiOsExecute (OSL_DEBUGGER_EXEC_THREAD, AcpiDbMethodThread, 1065 &AcpiGbl_DbMethodInfo); 1066 if (ACPI_FAILURE (Status)) 1067 { 1068 break; 1069 } 1070 } 1071 1072 /* Wait for all threads to complete */ 1073 1074 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER); 1075 1076 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 1077 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads); 1078 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 1079 1080 CleanupAndExit: 1081 1082 /* Cleanup and exit */ 1083 1084 (void) AcpiOsDeleteSemaphore (MainThreadGate); 1085 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 1086 (void) AcpiOsDeleteSemaphore (InfoGate); 1087 1088 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads); 1089 AcpiGbl_DbMethodInfo.Threads = NULL; 1090 } 1091 1092 #endif /* ACPI_DEBUGGER */ 1093