1 /****************************************************************************** 2 * 3 * Module Name: dswload - Dispatcher first pass namespace load callbacks 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2018, 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 "acparser.h" 155 #include "amlcode.h" 156 #include "acdispat.h" 157 #include "acinterp.h" 158 #include "acnamesp.h" 159 160 #ifdef ACPI_ASL_COMPILER 161 #include "acdisasm.h" 162 #endif 163 164 #define _COMPONENT ACPI_DISPATCHER 165 ACPI_MODULE_NAME ("dswload") 166 167 168 /******************************************************************************* 169 * 170 * FUNCTION: AcpiDsInitCallbacks 171 * 172 * PARAMETERS: WalkState - Current state of the parse tree walk 173 * PassNumber - 1, 2, or 3 174 * 175 * RETURN: Status 176 * 177 * DESCRIPTION: Init walk state callbacks 178 * 179 ******************************************************************************/ 180 181 ACPI_STATUS 182 AcpiDsInitCallbacks ( 183 ACPI_WALK_STATE *WalkState, 184 UINT32 PassNumber) 185 { 186 187 switch (PassNumber) 188 { 189 case 0: 190 191 /* Parse only - caller will setup callbacks */ 192 193 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 194 ACPI_PARSE_DELETE_TREE | 195 ACPI_PARSE_DISASSEMBLE; 196 WalkState->DescendingCallback = NULL; 197 WalkState->AscendingCallback = NULL; 198 break; 199 200 case 1: 201 202 /* Load pass 1 */ 203 204 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 205 ACPI_PARSE_DELETE_TREE; 206 WalkState->DescendingCallback = AcpiDsLoad1BeginOp; 207 WalkState->AscendingCallback = AcpiDsLoad1EndOp; 208 break; 209 210 case 2: 211 212 /* Load pass 2 */ 213 214 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 215 ACPI_PARSE_DELETE_TREE; 216 WalkState->DescendingCallback = AcpiDsLoad2BeginOp; 217 WalkState->AscendingCallback = AcpiDsLoad2EndOp; 218 break; 219 220 case 3: 221 222 /* Execution pass */ 223 224 #ifndef ACPI_NO_METHOD_EXECUTION 225 WalkState->ParseFlags |= ACPI_PARSE_EXECUTE | 226 ACPI_PARSE_DELETE_TREE; 227 WalkState->DescendingCallback = AcpiDsExecBeginOp; 228 WalkState->AscendingCallback = AcpiDsExecEndOp; 229 #endif 230 break; 231 232 default: 233 234 return (AE_BAD_PARAMETER); 235 } 236 237 return (AE_OK); 238 } 239 240 241 /******************************************************************************* 242 * 243 * FUNCTION: AcpiDsLoad1BeginOp 244 * 245 * PARAMETERS: WalkState - Current state of the parse tree walk 246 * OutOp - Where to return op if a new one is created 247 * 248 * RETURN: Status 249 * 250 * DESCRIPTION: Descending callback used during the loading of ACPI tables. 251 * 252 ******************************************************************************/ 253 254 ACPI_STATUS 255 AcpiDsLoad1BeginOp ( 256 ACPI_WALK_STATE *WalkState, 257 ACPI_PARSE_OBJECT **OutOp) 258 { 259 ACPI_PARSE_OBJECT *Op; 260 ACPI_NAMESPACE_NODE *Node; 261 ACPI_STATUS Status; 262 ACPI_OBJECT_TYPE ObjectType; 263 char *Path; 264 UINT32 Flags; 265 266 267 ACPI_FUNCTION_TRACE_PTR (DsLoad1BeginOp, WalkState->Op); 268 269 270 Op = WalkState->Op; 271 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 272 273 /* We are only interested in opcodes that have an associated name */ 274 275 if (Op) 276 { 277 if (!(WalkState->OpInfo->Flags & AML_NAMED)) 278 { 279 *OutOp = Op; 280 return_ACPI_STATUS (AE_OK); 281 } 282 283 /* Check if this object has already been installed in the namespace */ 284 285 if (Op->Common.Node) 286 { 287 *OutOp = Op; 288 return_ACPI_STATUS (AE_OK); 289 } 290 } 291 292 Path = AcpiPsGetNextNamestring (&WalkState->ParserState); 293 294 /* Map the raw opcode into an internal object type */ 295 296 ObjectType = WalkState->OpInfo->ObjectType; 297 298 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 299 "State=%p Op=%p [%s]\n", WalkState, Op, 300 AcpiUtGetTypeName (ObjectType))); 301 302 switch (WalkState->Opcode) 303 { 304 case AML_SCOPE_OP: 305 /* 306 * The target name of the Scope() operator must exist at this point so 307 * that we can actually open the scope to enter new names underneath it. 308 * Allow search-to-root for single namesegs. 309 */ 310 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 311 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node)); 312 #ifdef ACPI_ASL_COMPILER 313 if (Status == AE_NOT_FOUND) 314 { 315 /* 316 * Table disassembly: 317 * Target of Scope() not found. Generate an External for it, and 318 * insert the name into the namespace. 319 */ 320 AcpiDmAddOpToExternalList (Op, Path, ACPI_TYPE_DEVICE, 0, 0); 321 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 322 ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, 323 WalkState, &Node); 324 } 325 #endif 326 if (ACPI_FAILURE (Status)) 327 { 328 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, Path, Status); 329 return_ACPI_STATUS (Status); 330 } 331 332 /* 333 * Check to make sure that the target is 334 * one of the opcodes that actually opens a scope 335 */ 336 switch (Node->Type) 337 { 338 case ACPI_TYPE_ANY: 339 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ 340 case ACPI_TYPE_DEVICE: 341 case ACPI_TYPE_POWER: 342 case ACPI_TYPE_PROCESSOR: 343 case ACPI_TYPE_THERMAL: 344 345 /* These are acceptable types */ 346 break; 347 348 case ACPI_TYPE_INTEGER: 349 case ACPI_TYPE_STRING: 350 case ACPI_TYPE_BUFFER: 351 /* 352 * These types we will allow, but we will change the type. 353 * This enables some existing code of the form: 354 * 355 * Name (DEB, 0) 356 * Scope (DEB) { ... } 357 * 358 * Note: silently change the type here. On the second pass, 359 * we will report a warning 360 */ 361 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 362 "Type override - [%4.4s] had invalid type (%s) " 363 "for Scope operator, changed to type ANY\n", 364 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type))); 365 366 Node->Type = ACPI_TYPE_ANY; 367 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; 368 break; 369 370 case ACPI_TYPE_METHOD: 371 /* 372 * Allow scope change to root during execution of module-level 373 * code. Root is typed METHOD during this time. 374 */ 375 if ((Node == AcpiGbl_RootNode) && 376 (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 377 { 378 break; 379 } 380 381 /*lint -fallthrough */ 382 383 default: 384 385 /* All other types are an error */ 386 387 ACPI_ERROR ((AE_INFO, 388 "Invalid type (%s) for target of " 389 "Scope operator [%4.4s] (Cannot override)", 390 AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node))); 391 392 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 393 } 394 break; 395 396 default: 397 /* 398 * For all other named opcodes, we will enter the name into 399 * the namespace. 400 * 401 * Setup the search flags. 402 * Since we are entering a name into the namespace, we do not want to 403 * enable the search-to-root upsearch. 404 * 405 * There are only two conditions where it is acceptable that the name 406 * already exists: 407 * 1) the Scope() operator can reopen a scoping object that was 408 * previously defined (Scope, Method, Device, etc.) 409 * 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer, 410 * BufferField, or Package), the name of the object is already 411 * in the namespace. 412 */ 413 if (WalkState->DeferredNode) 414 { 415 /* This name is already in the namespace, get the node */ 416 417 Node = WalkState->DeferredNode; 418 Status = AE_OK; 419 break; 420 } 421 422 /* 423 * If we are executing a method, do not create any namespace objects 424 * during the load phase, only during execution. 425 */ 426 if (WalkState->MethodNode) 427 { 428 Node = NULL; 429 Status = AE_OK; 430 break; 431 } 432 433 Flags = ACPI_NS_NO_UPSEARCH; 434 if ((WalkState->Opcode != AML_SCOPE_OP) && 435 (!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP))) 436 { 437 if (WalkState->NamespaceOverride) 438 { 439 Flags |= ACPI_NS_OVERRIDE_IF_FOUND; 440 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Override allowed\n", 441 AcpiUtGetTypeName (ObjectType))); 442 } 443 else 444 { 445 Flags |= ACPI_NS_ERROR_IF_FOUND; 446 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n", 447 AcpiUtGetTypeName (ObjectType))); 448 } 449 } 450 else 451 { 452 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 453 "[%s] Both Find or Create allowed\n", 454 AcpiUtGetTypeName (ObjectType))); 455 } 456 457 /* 458 * Enter the named type into the internal namespace. We enter the name 459 * as we go downward in the parse tree. Any necessary subobjects that 460 * involve arguments to the opcode must be created as we go back up the 461 * parse tree later. 462 */ 463 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 464 ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node); 465 if (ACPI_FAILURE (Status)) 466 { 467 if (Status == AE_ALREADY_EXISTS) 468 { 469 /* The name already exists in this scope */ 470 471 if (Node->Flags & ANOBJ_IS_EXTERNAL) 472 { 473 /* 474 * Allow one create on an object or segment that was 475 * previously declared External 476 */ 477 Node->Flags &= ~ANOBJ_IS_EXTERNAL; 478 Node->Type = (UINT8) ObjectType; 479 480 /* Just retyped a node, probably will need to open a scope */ 481 482 if (AcpiNsOpensScope (ObjectType)) 483 { 484 Status = AcpiDsScopeStackPush ( 485 Node, ObjectType, WalkState); 486 if (ACPI_FAILURE (Status)) 487 { 488 return_ACPI_STATUS (Status); 489 } 490 } 491 492 Status = AE_OK; 493 } 494 } 495 496 if (ACPI_FAILURE (Status)) 497 { 498 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, Path, Status); 499 return_ACPI_STATUS (Status); 500 } 501 } 502 break; 503 } 504 505 /* Common exit */ 506 507 if (!Op) 508 { 509 /* Create a new op */ 510 511 Op = AcpiPsAllocOp (WalkState->Opcode, WalkState->Aml); 512 if (!Op) 513 { 514 return_ACPI_STATUS (AE_NO_MEMORY); 515 } 516 } 517 518 /* Initialize the op */ 519 520 #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) 521 Op->Named.Path = Path; 522 #endif 523 524 if (Node) 525 { 526 /* 527 * Put the Node in the "op" object that the parser uses, so we 528 * can get it again quickly when this scope is closed 529 */ 530 Op->Common.Node = Node; 531 Op->Named.Name = Node->Name.Integer; 532 } 533 534 AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op); 535 *OutOp = Op; 536 return_ACPI_STATUS (Status); 537 } 538 539 540 /******************************************************************************* 541 * 542 * FUNCTION: AcpiDsLoad1EndOp 543 * 544 * PARAMETERS: WalkState - Current state of the parse tree walk 545 * 546 * RETURN: Status 547 * 548 * DESCRIPTION: Ascending callback used during the loading of the namespace, 549 * both control methods and everything else. 550 * 551 ******************************************************************************/ 552 553 ACPI_STATUS 554 AcpiDsLoad1EndOp ( 555 ACPI_WALK_STATE *WalkState) 556 { 557 ACPI_PARSE_OBJECT *Op; 558 ACPI_OBJECT_TYPE ObjectType; 559 ACPI_STATUS Status = AE_OK; 560 561 #ifdef ACPI_ASL_COMPILER 562 UINT8 ParamCount; 563 #endif 564 565 566 ACPI_FUNCTION_TRACE (DsLoad1EndOp); 567 568 569 Op = WalkState->Op; 570 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 571 572 /* We are only interested in opcodes that have an associated name */ 573 574 if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD))) 575 { 576 return_ACPI_STATUS (AE_OK); 577 } 578 579 /* Get the object type to determine if we should pop the scope */ 580 581 ObjectType = WalkState->OpInfo->ObjectType; 582 583 #ifndef ACPI_NO_METHOD_EXECUTION 584 if (WalkState->OpInfo->Flags & AML_FIELD) 585 { 586 /* 587 * If we are executing a method, do not create any namespace objects 588 * during the load phase, only during execution. 589 */ 590 if (!WalkState->MethodNode) 591 { 592 if (WalkState->Opcode == AML_FIELD_OP || 593 WalkState->Opcode == AML_BANK_FIELD_OP || 594 WalkState->Opcode == AML_INDEX_FIELD_OP) 595 { 596 Status = AcpiDsInitFieldObjects (Op, WalkState); 597 } 598 } 599 return_ACPI_STATUS (Status); 600 } 601 602 /* 603 * If we are executing a method, do not create any namespace objects 604 * during the load phase, only during execution. 605 */ 606 if (!WalkState->MethodNode) 607 { 608 if (Op->Common.AmlOpcode == AML_REGION_OP) 609 { 610 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, 611 (ACPI_ADR_SPACE_TYPE) 612 ((Op->Common.Value.Arg)->Common.Value.Integer), 613 WalkState); 614 if (ACPI_FAILURE (Status)) 615 { 616 return_ACPI_STATUS (Status); 617 } 618 } 619 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) 620 { 621 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, 622 ACPI_ADR_SPACE_DATA_TABLE, WalkState); 623 if (ACPI_FAILURE (Status)) 624 { 625 return_ACPI_STATUS (Status); 626 } 627 } 628 } 629 #endif 630 631 if (Op->Common.AmlOpcode == AML_NAME_OP) 632 { 633 /* For Name opcode, get the object type from the argument */ 634 635 if (Op->Common.Value.Arg) 636 { 637 ObjectType = (AcpiPsGetOpcodeInfo ( 638 (Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType; 639 640 /* Set node type if we have a namespace node */ 641 642 if (Op->Common.Node) 643 { 644 Op->Common.Node->Type = (UINT8) ObjectType; 645 } 646 } 647 } 648 649 #ifdef ACPI_ASL_COMPILER 650 /* 651 * For external opcode, get the object type from the argument and 652 * get the parameter count from the argument's next. 653 */ 654 if (AcpiGbl_DisasmFlag && 655 Op->Common.Node && 656 Op->Common.AmlOpcode == AML_EXTERNAL_OP) 657 { 658 /* 659 * Note, if this external is not a method 660 * Op->Common.Value.Arg->Common.Next->Common.Value.Integer == 0 661 * Therefore, ParamCount will be 0. 662 */ 663 ParamCount = (UINT8) Op->Common.Value.Arg->Common.Next->Common.Value.Integer; 664 ObjectType = (UINT8) Op->Common.Value.Arg->Common.Value.Integer; 665 Op->Common.Node->Flags |= ANOBJ_IS_EXTERNAL; 666 Op->Common.Node->Type = (UINT8) ObjectType; 667 668 AcpiDmCreateSubobjectForExternal ((UINT8)ObjectType, 669 &Op->Common.Node, ParamCount); 670 671 /* 672 * Add the external to the external list because we may be 673 * emitting code based off of the items within the external list. 674 */ 675 AcpiDmAddOpToExternalList (Op, Op->Named.Path, (UINT8)ObjectType, ParamCount, 676 ACPI_EXT_ORIGIN_FROM_OPCODE | ACPI_EXT_RESOLVED_REFERENCE); 677 } 678 #endif 679 680 /* 681 * If we are executing a method, do not create any namespace objects 682 * during the load phase, only during execution. 683 */ 684 if (!WalkState->MethodNode) 685 { 686 if (Op->Common.AmlOpcode == AML_METHOD_OP) 687 { 688 /* 689 * MethodOp PkgLength NameString MethodFlags TermList 690 * 691 * Note: We must create the method node/object pair as soon as we 692 * see the method declaration. This allows later pass1 parsing 693 * of invocations of the method (need to know the number of 694 * arguments.) 695 */ 696 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 697 "LOADING-Method: State=%p Op=%p NamedObj=%p\n", 698 WalkState, Op, Op->Named.Node)); 699 700 if (!AcpiNsGetAttachedObject (Op->Named.Node)) 701 { 702 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); 703 WalkState->NumOperands = 1; 704 705 Status = AcpiDsCreateOperands ( 706 WalkState, Op->Common.Value.Arg); 707 if (ACPI_SUCCESS (Status)) 708 { 709 Status = AcpiExCreateMethod (Op->Named.Data, 710 Op->Named.Length, WalkState); 711 } 712 713 WalkState->Operands[0] = NULL; 714 WalkState->NumOperands = 0; 715 716 if (ACPI_FAILURE (Status)) 717 { 718 return_ACPI_STATUS (Status); 719 } 720 } 721 } 722 } 723 724 /* Pop the scope stack (only if loading a table) */ 725 726 if (!WalkState->MethodNode && 727 Op->Common.AmlOpcode != AML_EXTERNAL_OP && 728 AcpiNsOpensScope (ObjectType)) 729 { 730 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n", 731 AcpiUtGetTypeName (ObjectType), Op)); 732 733 Status = AcpiDsScopeStackPop (WalkState); 734 } 735 736 return_ACPI_STATUS (Status); 737 } 738