1 /****************************************************************************** 2 * 3 * Module Name: adwalk - Application-level disassembler parse tree walk routines 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2025, 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 "acdisasm.h" 157 #include "acdispat.h" 158 #include "acnamesp.h" 159 #include "acapps.h" 160 161 162 #define _COMPONENT ACPI_TOOLS 163 ACPI_MODULE_NAME ("adwalk") 164 165 /* 166 * aslmap - opcode mappings and reserved method names 167 */ 168 ACPI_OBJECT_TYPE 169 AslMapNamedOpcodeToDataType ( 170 UINT16 Opcode); 171 172 /* Local prototypes */ 173 174 static ACPI_STATUS 175 AcpiDmFindOrphanDescending ( 176 ACPI_PARSE_OBJECT *Op, 177 UINT32 Level, 178 void *Context); 179 180 static ACPI_STATUS 181 AcpiDmDumpDescending ( 182 ACPI_PARSE_OBJECT *Op, 183 UINT32 Level, 184 void *Context); 185 186 static ACPI_STATUS 187 AcpiDmXrefDescendingOp ( 188 ACPI_PARSE_OBJECT *Op, 189 UINT32 Level, 190 void *Context); 191 192 static ACPI_STATUS 193 AcpiDmCommonAscendingOp ( 194 ACPI_PARSE_OBJECT *Op, 195 UINT32 Level, 196 void *Context); 197 198 static ACPI_STATUS 199 AcpiDmLoadDescendingOp ( 200 ACPI_PARSE_OBJECT *Op, 201 UINT32 Level, 202 void *Context); 203 204 static UINT32 205 AcpiDmInspectPossibleArgs ( 206 UINT32 CurrentOpArgCount, 207 UINT32 TargetCount, 208 ACPI_PARSE_OBJECT *Op); 209 210 static ACPI_STATUS 211 AcpiDmCommonDescendingOp ( 212 ACPI_PARSE_OBJECT *Op, 213 UINT32 Level, 214 void *Context); 215 216 static ACPI_STATUS 217 AcpiDmProcessResourceDescriptors ( 218 ACPI_PARSE_OBJECT *Op, 219 UINT32 Level, 220 void *Context); 221 222 /******************************************************************************* 223 * 224 * FUNCTION: AcpiDmDumpTree 225 * 226 * PARAMETERS: Origin - Starting object 227 * 228 * RETURN: None 229 * 230 * DESCRIPTION: Parse tree walk to format and output the nodes 231 * 232 ******************************************************************************/ 233 234 void 235 AcpiDmDumpTree ( 236 ACPI_PARSE_OBJECT *Origin) 237 { 238 ACPI_OP_WALK_INFO Info; 239 240 241 if (!Origin) 242 { 243 return; 244 } 245 246 AcpiOsPrintf ("/*\nAML Parse Tree\n\n"); 247 Info.Flags = 0; 248 Info.Count = 0; 249 Info.Level = 0; 250 Info.WalkState = NULL; 251 252 AcpiDmWalkParseTree (Origin, AcpiDmDumpDescending, NULL, &Info); 253 AcpiOsPrintf ("*/\n\n"); 254 } 255 256 257 /******************************************************************************* 258 * 259 * FUNCTION: AcpiDmFindOrphanMethods 260 * 261 * PARAMETERS: Origin - Starting object 262 * 263 * RETURN: None 264 * 265 * DESCRIPTION: Parse tree walk to find "orphaned" method invocations -- methods 266 * that are not resolved in the namespace 267 * 268 ******************************************************************************/ 269 270 void 271 AcpiDmFindOrphanMethods ( 272 ACPI_PARSE_OBJECT *Origin) 273 { 274 ACPI_OP_WALK_INFO Info; 275 276 277 if (!Origin) 278 { 279 return; 280 } 281 282 Info.Flags = 0; 283 Info.Level = 0; 284 Info.WalkState = NULL; 285 286 AcpiDmWalkParseTree (Origin, AcpiDmFindOrphanDescending, NULL, &Info); 287 } 288 289 290 /******************************************************************************* 291 * 292 * FUNCTION: AcpiDmFinishNamespaceLoad 293 * 294 * PARAMETERS: ParseTreeRoot - Root of the parse tree 295 * NamespaceRoot - Root of the internal namespace 296 * OwnerId - OwnerId of the table to be disassembled 297 * 298 * RETURN: None 299 * 300 * DESCRIPTION: Load all namespace items that are created within control 301 * methods. Used before namespace cross reference 302 * 303 ******************************************************************************/ 304 305 void 306 AcpiDmFinishNamespaceLoad ( 307 ACPI_PARSE_OBJECT *ParseTreeRoot, 308 ACPI_NAMESPACE_NODE *NamespaceRoot, 309 ACPI_OWNER_ID OwnerId) 310 { 311 ACPI_STATUS Status; 312 ACPI_OP_WALK_INFO Info; 313 ACPI_WALK_STATE *WalkState; 314 315 316 if (!ParseTreeRoot) 317 { 318 return; 319 } 320 321 /* Create and initialize a new walk state */ 322 323 WalkState = AcpiDsCreateWalkState (OwnerId, ParseTreeRoot, NULL, NULL); 324 if (!WalkState) 325 { 326 return; 327 } 328 329 Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, 330 WalkState); 331 if (ACPI_FAILURE (Status)) 332 { 333 return; 334 } 335 336 Info.Flags = 0; 337 Info.Level = 0; 338 Info.WalkState = WalkState; 339 340 AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmLoadDescendingOp, 341 AcpiDmCommonAscendingOp, &Info); 342 ACPI_FREE (WalkState); 343 } 344 345 346 /******************************************************************************* 347 * 348 * FUNCTION: AcpiDmCrossReferenceNamespace 349 * 350 * PARAMETERS: ParseTreeRoot - Root of the parse tree 351 * NamespaceRoot - Root of the internal namespace 352 * OwnerId - OwnerId of the table to be disassembled 353 * 354 * RETURN: None 355 * 356 * DESCRIPTION: Cross reference the namespace to create externals 357 * 358 ******************************************************************************/ 359 360 void 361 AcpiDmCrossReferenceNamespace ( 362 ACPI_PARSE_OBJECT *ParseTreeRoot, 363 ACPI_NAMESPACE_NODE *NamespaceRoot, 364 ACPI_OWNER_ID OwnerId) 365 { 366 ACPI_STATUS Status; 367 ACPI_OP_WALK_INFO Info; 368 ACPI_WALK_STATE *WalkState; 369 370 371 if (!ParseTreeRoot) 372 { 373 return; 374 } 375 376 /* Create and initialize a new walk state */ 377 378 WalkState = AcpiDsCreateWalkState (OwnerId, ParseTreeRoot, NULL, NULL); 379 if (!WalkState) 380 { 381 return; 382 } 383 384 Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, 385 WalkState); 386 if (ACPI_FAILURE (Status)) 387 { 388 return; 389 } 390 391 Info.Flags = 0; 392 Info.Level = 0; 393 Info.WalkState = WalkState; 394 395 AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmXrefDescendingOp, 396 AcpiDmCommonAscendingOp, &Info); 397 ACPI_FREE (WalkState); 398 } 399 400 401 /******************************************************************************* 402 * 403 * FUNCTION: AcpiDmConvertParseObjects 404 * 405 * PARAMETERS: ParseTreeRoot - Root of the parse tree 406 * NamespaceRoot - Root of the internal namespace 407 * 408 * RETURN: None 409 * 410 * DESCRIPTION: Begin parse tree walk to perform conversions needed for 411 * disassembly. These include resource descriptors and switch/case 412 * operations. 413 * 414 ******************************************************************************/ 415 416 void 417 AcpiDmConvertParseObjects ( 418 ACPI_PARSE_OBJECT *ParseTreeRoot, 419 ACPI_NAMESPACE_NODE *NamespaceRoot) 420 { 421 ACPI_STATUS Status; 422 ACPI_OP_WALK_INFO Info; 423 ACPI_WALK_STATE *WalkState; 424 425 426 if (!ParseTreeRoot) 427 { 428 return; 429 } 430 431 /* Create and initialize a new walk state */ 432 433 WalkState = AcpiDsCreateWalkState (0, ParseTreeRoot, NULL, NULL); 434 if (!WalkState) 435 { 436 return; 437 } 438 439 Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, 440 WalkState); 441 if (ACPI_FAILURE (Status)) 442 { 443 ACPI_FREE (WalkState); 444 return; 445 } 446 447 Info.Flags = 0; 448 Info.Level = 0; 449 Info.WalkState = WalkState; 450 451 AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmCommonDescendingOp, 452 AcpiDmCommonAscendingOp, &Info); 453 ACPI_FREE (WalkState); 454 455 if (AcpiGbl_TempListHead) { 456 AcpiDmClearTempList(); 457 } 458 459 return; 460 } 461 462 463 /******************************************************************************* 464 * 465 * FUNCTION: AcpiDmDumpDescending 466 * 467 * PARAMETERS: ASL_WALK_CALLBACK 468 * 469 * RETURN: Status 470 * 471 * DESCRIPTION: Format and print contents of one parse Op. 472 * 473 ******************************************************************************/ 474 475 static ACPI_STATUS 476 AcpiDmDumpDescending ( 477 ACPI_PARSE_OBJECT *Op, 478 UINT32 Level, 479 void *Context) 480 { 481 ACPI_OP_WALK_INFO *Info = Context; 482 char *Path; 483 ACPI_STATUS Status; 484 485 486 if (!Op) 487 { 488 return (AE_OK); 489 } 490 491 /* Most of the information (count, level, name) here */ 492 493 Info->Count++; 494 AcpiOsPrintf ("% 5d [%2.2d] ", Info->Count, Level); 495 AcpiDmIndent (Level); 496 AcpiOsPrintf ("%-28s", AcpiPsGetOpcodeName (Op->Common.AmlOpcode)); 497 498 /* Extra info is helpful */ 499 500 switch (Op->Common.AmlOpcode) 501 { 502 case AML_BYTE_OP: 503 504 AcpiOsPrintf ("%2.2X", (UINT32) Op->Common.Value.Integer); 505 break; 506 507 case AML_WORD_OP: 508 509 AcpiOsPrintf ("%4.4X", (UINT32) Op->Common.Value.Integer); 510 break; 511 512 case AML_DWORD_OP: 513 514 AcpiOsPrintf ("%8.8X", (UINT32) Op->Common.Value.Integer); 515 break; 516 517 case AML_QWORD_OP: 518 519 AcpiOsPrintf ("%8.8X%8.8X", ACPI_FORMAT_UINT64 (Op->Common.Value.Integer)); 520 break; 521 522 case AML_INT_NAMEPATH_OP: 523 524 if (Op->Common.Value.String) 525 { 526 Status = AcpiNsExternalizeName (ACPI_UINT32_MAX, Op->Common.Value.String, 527 NULL, &Path); 528 if (ACPI_SUCCESS (Status)) 529 { 530 AcpiOsPrintf ("%s %p", Path, Op->Common.Node); 531 ACPI_FREE (Path); 532 } 533 else 534 { 535 AcpiOsPrintf ("Could not externalize pathname for node [%4.4s]", 536 Op->Common.Node->Name.Ascii); 537 } 538 } 539 else 540 { 541 AcpiOsPrintf ("[NULL]"); 542 } 543 break; 544 545 case AML_NAME_OP: 546 case AML_METHOD_OP: 547 case AML_DEVICE_OP: 548 549 AcpiOsPrintf ("%4.4s", 550 ACPI_CAST_PTR (char, &Op->Named.Name)); 551 break; 552 553 case AML_INT_NAMEDFIELD_OP: 554 555 AcpiOsPrintf ("%4.4s Length: (bits) %8.8X%8.8X (bytes) %8.8X%8.8X", 556 ACPI_CAST_PTR (char, &Op->Named.Name), 557 ACPI_FORMAT_UINT64 (Op->Common.Value.Integer), 558 ACPI_FORMAT_UINT64 (Op->Common.Value.Integer / 8)); 559 break; 560 561 562 default: 563 564 break; 565 } 566 567 AcpiOsPrintf ("\n"); 568 return (AE_OK); 569 } 570 571 572 /******************************************************************************* 573 * 574 * FUNCTION: AcpiDmFindOrphanDescending 575 * 576 * PARAMETERS: ASL_WALK_CALLBACK 577 * 578 * RETURN: Status 579 * 580 * DESCRIPTION: Check namepath Ops for orphaned method invocations 581 * 582 * Note: Parts of this are experimental, under possible further development. 583 * 584 ******************************************************************************/ 585 586 static ACPI_STATUS 587 AcpiDmFindOrphanDescending ( 588 ACPI_PARSE_OBJECT *Op, 589 UINT32 Level, 590 void *Context) 591 { 592 const ACPI_OPCODE_INFO *OpInfo; 593 ACPI_PARSE_OBJECT *ChildOp; 594 ACPI_PARSE_OBJECT *NextOp; 595 ACPI_PARSE_OBJECT *ParentOp; 596 UINT32 ArgCount; 597 598 599 if (!Op) 600 { 601 return (AE_OK); 602 } 603 604 #ifdef ACPI_UNDER_DEVELOPMENT 605 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 606 #endif 607 608 switch (Op->Common.AmlOpcode) 609 { 610 #ifdef ACPI_UNDER_DEVELOPMENT 611 case AML_ADD_OP: 612 613 ChildOp = Op->Common.Value.Arg; 614 if ((ChildOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && 615 !ChildOp->Common.Node) 616 { 617 AcpiNsExternalizeName (ACPI_UINT32_MAX, ChildOp->Common.Value.String, 618 NULL, &Path); 619 AcpiOsPrintf ("/* %-16s A-NAMEPATH: %s */\n", 620 Op->Common.AmlOpName, Path); 621 ACPI_FREE (Path); 622 623 NextOp = Op->Common.Next; 624 if (!NextOp) 625 { 626 /* This NamePath has no args, assume it is an integer */ 627 628 AcpiDmAddOpToExternalList (ChildOp, 629 ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); 630 return (AE_OK); 631 } 632 633 ArgCount = AcpiDmInspectPossibleArgs (3, 1, NextOp); 634 AcpiOsPrintf ("/* A-CHILDREN: %u Actual %u */\n", 635 ArgCount, AcpiDmCountChildren (Op)); 636 637 if (ArgCount < 1) 638 { 639 /* One Arg means this is just a Store(Name,Target) */ 640 641 AcpiDmAddOpToExternalList (ChildOp, 642 ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); 643 return (AE_OK); 644 } 645 646 AcpiDmAddOpToExternalList (ChildOp, 647 ChildOp->Common.Value.String, ACPI_TYPE_METHOD, ArgCount, 0); 648 } 649 break; 650 651 #endif 652 653 case AML_STORE_OP: 654 655 ChildOp = Op->Common.Value.Arg; 656 if ((ChildOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && 657 !ChildOp->Common.Node) 658 { 659 NextOp = Op->Common.Next; 660 if (!NextOp) 661 { 662 /* This NamePath has no args, assume it is an integer */ 663 664 AcpiDmAddOpToExternalList (ChildOp, 665 ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); 666 return (AE_OK); 667 } 668 669 ArgCount = AcpiDmInspectPossibleArgs (2, 1, NextOp); 670 if (ArgCount <= 1) 671 { 672 /* One Arg means this is just a Store(Name,Target) */ 673 674 AcpiDmAddOpToExternalList (ChildOp, 675 ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, ArgCount, 0); 676 return (AE_OK); 677 } 678 679 AcpiDmAddOpToExternalList (ChildOp, 680 ChildOp->Common.Value.String, ACPI_TYPE_METHOD, ArgCount, 0); 681 } 682 break; 683 684 case AML_INT_NAMEPATH_OP: 685 686 /* Must examine parent to see if this namepath is an argument */ 687 688 ParentOp = Op->Common.Parent; 689 OpInfo = AcpiPsGetOpcodeInfo (ParentOp->Common.AmlOpcode); 690 691 if ((OpInfo->Class != AML_CLASS_EXECUTE) && 692 (OpInfo->Class != AML_CLASS_CREATE) && 693 (OpInfo->ObjectType != ACPI_TYPE_LOCAL_ALIAS) && 694 (ParentOp->Common.AmlOpcode != AML_INT_METHODCALL_OP) && 695 !Op->Common.Node) 696 { 697 ArgCount = AcpiDmInspectPossibleArgs (0, 0, Op); 698 699 /* 700 * Check if namepath is a predicate for if/while or lone parameter to 701 * a return. 702 */ 703 if (ArgCount == 0) 704 { 705 if (((ParentOp->Common.AmlOpcode == AML_IF_OP) || 706 (ParentOp->Common.AmlOpcode == AML_WHILE_OP) || 707 (ParentOp->Common.AmlOpcode == AML_RETURN_OP)) && 708 709 /* And namepath is the first argument */ 710 (ParentOp->Common.Value.Arg == Op)) 711 { 712 AcpiDmAddOpToExternalList (Op, 713 Op->Common.Value.String, ACPI_TYPE_INTEGER, 0, 0); 714 break; 715 } 716 } 717 718 /* 719 * This is a standalone namestring (not a parameter to another 720 * operator) - it *must* be a method invocation, nothing else is 721 * grammatically possible. 722 */ 723 AcpiDmAddOpToExternalList (Op, 724 Op->Common.Value.String, ACPI_TYPE_METHOD, ArgCount, 0); 725 } 726 break; 727 728 default: 729 730 break; 731 } 732 733 return (AE_OK); 734 } 735 736 737 /******************************************************************************* 738 * 739 * FUNCTION: AcpiDmLoadDescendingOp 740 * 741 * PARAMETERS: ASL_WALK_CALLBACK 742 * 743 * RETURN: Status 744 * 745 * DESCRIPTION: Descending handler for namespace control method object load 746 * 747 ******************************************************************************/ 748 749 static ACPI_STATUS 750 AcpiDmLoadDescendingOp ( 751 ACPI_PARSE_OBJECT *Op, 752 UINT32 Level, 753 void *Context) 754 { 755 ACPI_OP_WALK_INFO *Info = Context; 756 const ACPI_OPCODE_INFO *OpInfo; 757 ACPI_WALK_STATE *WalkState; 758 ACPI_OBJECT_TYPE ObjectType; 759 ACPI_STATUS Status; 760 char *Path = NULL; 761 ACPI_PARSE_OBJECT *NextOp; 762 ACPI_NAMESPACE_NODE *Node; 763 char FieldPath[5]; 764 BOOLEAN PreDefined = FALSE; 765 UINT8 PreDefineIndex = 0; 766 767 768 WalkState = Info->WalkState; 769 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 770 ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); 771 772 /* Only interested in operators that create new names */ 773 774 if (!(OpInfo->Flags & AML_NAMED) && 775 !(OpInfo->Flags & AML_CREATE)) 776 { 777 goto Exit; 778 } 779 780 /* Get the NamePath from the appropriate place */ 781 782 if (OpInfo->Flags & AML_NAMED) 783 { 784 /* For all named operators, get the new name */ 785 786 Path = Op->Named.Path; 787 788 if (!Path && Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) 789 { 790 *ACPI_CAST_PTR (UINT32, &FieldPath[0]) = Op->Named.Name; 791 FieldPath[4] = 0; 792 Path = FieldPath; 793 } 794 } 795 else if (OpInfo->Flags & AML_CREATE) 796 { 797 /* New name is the last child */ 798 799 NextOp = Op->Common.Value.Arg; 800 801 while (NextOp->Common.Next) 802 { 803 NextOp = NextOp->Common.Next; 804 } 805 806 Path = NextOp->Common.Value.String; 807 } 808 809 if (!Path) 810 { 811 goto Exit; 812 } 813 814 /* Insert the name into the namespace */ 815 816 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 817 ACPI_IMODE_LOAD_PASS2, ACPI_NS_DONT_OPEN_SCOPE, 818 WalkState, &Node); 819 820 Op->Common.Node = Node; 821 822 if (ACPI_SUCCESS (Status)) 823 { 824 /* Check if it's a predefined node */ 825 826 while (AcpiGbl_PreDefinedNames[PreDefineIndex].Name) 827 { 828 if (ACPI_COMPARE_NAMESEG (Node->Name.Ascii, 829 AcpiGbl_PreDefinedNames[PreDefineIndex].Name)) 830 { 831 PreDefined = TRUE; 832 break; 833 } 834 835 PreDefineIndex++; 836 } 837 838 /* 839 * Set node owner id if it satisfies all the following conditions: 840 * 1) Not a predefined node, _SB_ etc 841 * 2) Not the root node 842 * 3) Not a node created by Scope 843 */ 844 if (!PreDefined && 845 (Node != AcpiGbl_RootNode) && 846 (Op->Common.AmlOpcode != AML_SCOPE_OP)) 847 { 848 Node->OwnerId = WalkState->OwnerId; 849 } 850 } 851 852 853 Exit: 854 855 if (AcpiNsOpensScope (ObjectType)) 856 { 857 if (Op->Common.Node) 858 { 859 Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, 860 WalkState); 861 if (ACPI_FAILURE (Status)) 862 { 863 return (Status); 864 } 865 } 866 } 867 868 return (AE_OK); 869 } 870 871 872 /******************************************************************************* 873 * 874 * FUNCTION: AcpiDmXrefDescendingOp 875 * 876 * PARAMETERS: ASL_WALK_CALLBACK 877 * 878 * RETURN: Status 879 * 880 * DESCRIPTION: Descending handler for namespace cross reference 881 * 882 ******************************************************************************/ 883 884 static ACPI_STATUS 885 AcpiDmXrefDescendingOp ( 886 ACPI_PARSE_OBJECT *Op, 887 UINT32 Level, 888 void *Context) 889 { 890 ACPI_OP_WALK_INFO *Info = Context; 891 const ACPI_OPCODE_INFO *OpInfo; 892 ACPI_WALK_STATE *WalkState; 893 ACPI_OBJECT_TYPE ObjectType; 894 ACPI_OBJECT_TYPE ObjectType2; 895 ACPI_STATUS Status; 896 char *Path = NULL; 897 ACPI_PARSE_OBJECT *NextOp; 898 ACPI_NAMESPACE_NODE *Node; 899 ACPI_OPERAND_OBJECT *Object; 900 UINT32 ParamCount = 0; 901 char *Pathname; 902 UINT16 Flags = 0; 903 904 905 WalkState = Info->WalkState; 906 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 907 ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); 908 909 if ((!(OpInfo->Flags & AML_NAMED)) && 910 (!(OpInfo->Flags & AML_CREATE)) && 911 (Op->Common.AmlOpcode != AML_INT_NAMEPATH_OP) && 912 (Op->Common.AmlOpcode != AML_NOTIFY_OP)) 913 { 914 goto Exit; 915 } 916 917 /* Get the NamePath from the appropriate place */ 918 919 if (OpInfo->Flags & AML_NAMED) 920 { 921 /* 922 * Only these two operators (Alias, Scope) refer to an existing 923 * name, it is the first argument 924 */ 925 if (Op->Common.AmlOpcode == AML_ALIAS_OP) 926 { 927 ObjectType = ACPI_TYPE_ANY; 928 929 NextOp = Op->Common.Value.Arg; 930 NextOp = NextOp->Common.Value.Arg; 931 if (NextOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 932 { 933 Path = NextOp->Common.Value.String; 934 } 935 } 936 else if (Op->Common.AmlOpcode == AML_SCOPE_OP || 937 Op->Common.AmlOpcode == AML_EXTERNAL_OP) 938 { 939 Path = Op->Named.Path; 940 } 941 } 942 else if (OpInfo->Flags & AML_CREATE) 943 { 944 /* Referenced Buffer Name is the first child */ 945 946 ObjectType = ACPI_TYPE_BUFFER; /* Change from TYPE_BUFFER_FIELD */ 947 948 NextOp = Op->Common.Value.Arg; 949 if (NextOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 950 { 951 Path = NextOp->Common.Value.String; 952 } 953 } 954 else if (Op->Common.AmlOpcode == AML_NOTIFY_OP) 955 { 956 Path = Op->Common.Value.Arg->Asl.Value.String; 957 } 958 else 959 { 960 Path = Op->Common.Value.String; 961 } 962 963 if (!Path) 964 { 965 goto Exit; 966 } 967 968 /* 969 * Lookup the name in the namespace. Name must exist at this point, or it 970 * is an invalid reference. 971 * 972 * The namespace is also used as a lookup table for references to resource 973 * descriptors and the fields within them. 974 */ 975 Node = NULL; 976 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY, 977 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, 978 WalkState, &Node); 979 980 if (ACPI_SUCCESS (Status) && (Node->Flags & ANOBJ_IS_EXTERNAL)) 981 { 982 /* Node was created by an External() statement */ 983 984 Status = AE_NOT_FOUND; 985 } 986 987 if (ACPI_FAILURE (Status)) 988 { 989 if (Status == AE_NOT_FOUND) 990 { 991 /* 992 * Add this symbol as an external declaration, except if the 993 * parent is a CondRefOf operator. For this operator, we do not 994 * need an external, nor do we want one, since this can cause 995 * disassembly problems if the symbol is actually a control 996 * method. 997 */ 998 if (!(Op->Asl.Parent && 999 (Op->Asl.Parent->Asl.AmlOpcode == AML_CONDITIONAL_REF_OF_OP))) 1000 { 1001 if (Node) 1002 { 1003 AcpiDmAddNodeToExternalList (Node, 1004 (UINT8) ObjectType, 7, Flags); 1005 } 1006 else 1007 { 1008 AcpiDmAddOpToExternalList (Op, Path, 1009 (UINT8) ObjectType, 7, Flags); 1010 } 1011 } 1012 } 1013 } 1014 1015 /* 1016 * Found the node, but check if it came from an external table. 1017 * Add it to external list. Note: Node->OwnerId == 0 indicates 1018 * one of the built-in ACPI Names (_OS_ etc.) which can safely 1019 * be ignored. 1020 */ 1021 else if (Node->OwnerId && 1022 (WalkState->OwnerId != Node->OwnerId)) 1023 { 1024 ObjectType2 = ObjectType; 1025 1026 Object = AcpiNsGetAttachedObject (Node); 1027 if (Object) 1028 { 1029 ObjectType2 = Object->Common.Type; 1030 if (ObjectType2 == ACPI_TYPE_METHOD) 1031 { 1032 ParamCount = Object->Method.ParamCount; 1033 } 1034 } 1035 1036 Pathname = AcpiNsGetExternalPathname (Node); 1037 if (!Pathname) 1038 { 1039 return (AE_NO_MEMORY); 1040 } 1041 1042 AcpiDmAddNodeToExternalList (Node, (UINT8) ObjectType2, 1043 ParamCount, ACPI_EXT_RESOLVED_REFERENCE); 1044 1045 ACPI_FREE (Pathname); 1046 Op->Common.Node = Node; 1047 } 1048 else 1049 { 1050 Op->Common.Node = Node; 1051 } 1052 1053 1054 Exit: 1055 /* Open new scope if necessary */ 1056 1057 if (AcpiNsOpensScope (ObjectType)) 1058 { 1059 if (Op->Common.Node) 1060 { 1061 Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, 1062 WalkState); 1063 if (ACPI_FAILURE (Status)) 1064 { 1065 return (Status); 1066 } 1067 } 1068 } 1069 1070 return (AE_OK); 1071 } 1072 1073 /******************************************************************************* 1074 * 1075 * FUNCTION: AcpiDmCommonDescendingOp 1076 * 1077 * PARAMETERS: ASL_WALK_CALLBACK 1078 * 1079 * RETURN: ACPI_STATUS 1080 * 1081 * DESCRIPTION: Perform parse tree preprocessing before main disassembly walk. 1082 * 1083 ******************************************************************************/ 1084 1085 static ACPI_STATUS 1086 AcpiDmCommonDescendingOp ( 1087 ACPI_PARSE_OBJECT *Op, 1088 UINT32 Level, 1089 void *Context) 1090 { 1091 ACPI_STATUS Status; 1092 1093 1094 /* Resource descriptor conversion */ 1095 1096 Status = AcpiDmProcessResourceDescriptors (Op, Level, Context); 1097 if (ACPI_FAILURE (Status)) 1098 { 1099 return (Status); 1100 } 1101 1102 /* Switch/Case conversion */ 1103 1104 Status = AcpiDmProcessSwitch (Op); 1105 return (Status); 1106 } 1107 1108 1109 /******************************************************************************* 1110 * 1111 * FUNCTION: AcpiDmProcessResourceDescriptors 1112 * 1113 * PARAMETERS: ASL_WALK_CALLBACK 1114 * 1115 * RETURN: ACPI_STATUS 1116 * 1117 * DESCRIPTION: Convert fixed-offset references to resource descriptors to 1118 * symbolic references. Should only be called after namespace has 1119 * been cross referenced. 1120 * 1121 ******************************************************************************/ 1122 1123 static ACPI_STATUS 1124 AcpiDmProcessResourceDescriptors ( 1125 ACPI_PARSE_OBJECT *Op, 1126 UINT32 Level, 1127 void *Context) 1128 { 1129 ACPI_OP_WALK_INFO *Info = Context; 1130 const ACPI_OPCODE_INFO *OpInfo; 1131 ACPI_WALK_STATE *WalkState; 1132 ACPI_OBJECT_TYPE ObjectType; 1133 ACPI_STATUS Status; 1134 1135 1136 WalkState = Info->WalkState; 1137 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 1138 1139 /* Open new scope if necessary */ 1140 1141 ObjectType = OpInfo->ObjectType; 1142 if (AcpiNsOpensScope (ObjectType)) 1143 { 1144 if (Op->Common.Node) 1145 { 1146 1147 Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, 1148 WalkState); 1149 if (ACPI_FAILURE (Status)) 1150 { 1151 return (Status); 1152 } 1153 } 1154 } 1155 1156 /* 1157 * Check if this operator contains a reference to a resource descriptor. 1158 * If so, convert the reference into a symbolic reference. 1159 */ 1160 AcpiDmCheckResourceReference (Op, WalkState); 1161 return (AE_OK); 1162 } 1163 1164 /******************************************************************************* 1165 * 1166 * FUNCTION: AcpiDmCommonAscendingOp 1167 * 1168 * PARAMETERS: ASL_WALK_CALLBACK 1169 * 1170 * RETURN: None 1171 * 1172 * DESCRIPTION: Ascending handler for combined parse/namespace walks. Closes 1173 * scope if necessary. 1174 * 1175 ******************************************************************************/ 1176 1177 static ACPI_STATUS 1178 AcpiDmCommonAscendingOp ( 1179 ACPI_PARSE_OBJECT *Op, 1180 UINT32 Level, 1181 void *Context) 1182 { 1183 ACPI_OP_WALK_INFO *Info = Context; 1184 ACPI_OBJECT_TYPE ObjectType; 1185 1186 1187 /* Close scope if necessary */ 1188 1189 ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); 1190 1191 if (AcpiNsOpensScope (ObjectType)) 1192 { 1193 (void) AcpiDsScopeStackPop (Info->WalkState); 1194 } 1195 1196 return (AE_OK); 1197 } 1198 1199 /******************************************************************************* 1200 * 1201 * FUNCTION: AcpiDmInspectPossibleArgs 1202 * 1203 * PARAMETERS: CurrentOpArgCount - Which arg of the current op was the 1204 * possible method invocation found 1205 * TargetCount - Number of targets (0,1,2) for this op 1206 * Op - Parse op 1207 * 1208 * RETURN: Status 1209 * 1210 * DESCRIPTION: Examine following args and next ops for possible arguments 1211 * for an unrecognized method invocation. 1212 * 1213 ******************************************************************************/ 1214 1215 static UINT32 1216 AcpiDmInspectPossibleArgs ( 1217 UINT32 CurrentOpArgCount, 1218 UINT32 TargetCount, 1219 ACPI_PARSE_OBJECT *Op) 1220 { 1221 const ACPI_OPCODE_INFO *OpInfo; 1222 UINT32 i; 1223 UINT32 ArgumentCount = 0; 1224 ACPI_PARSE_OBJECT *NextOp; 1225 ACPI_PARSE_OBJECT *ExecuteOp; 1226 1227 1228 if (!Op) 1229 { 1230 return (0); 1231 } 1232 1233 /* Lookahead for the maximum number of possible arguments */ 1234 1235 NextOp = Op->Common.Next; 1236 1237 for (i = 0; (i < ACPI_METHOD_NUM_ARGS) && NextOp; i++) 1238 { 1239 OpInfo = AcpiPsGetOpcodeInfo (NextOp->Common.AmlOpcode); 1240 1241 /* Any one of these operators is "very probably" not a method arg */ 1242 1243 if ((NextOp->Common.AmlOpcode == AML_STORE_OP) || 1244 (NextOp->Common.AmlOpcode == AML_NOTIFY_OP) || 1245 (OpInfo->Class == AML_CLASS_CONTROL) || 1246 (OpInfo->Class == AML_CLASS_CREATE) || 1247 (OpInfo->Class == AML_CLASS_NAMED_OBJECT)) 1248 { 1249 break; 1250 } 1251 1252 if (OpInfo->Class == AML_CLASS_EXECUTE) 1253 { 1254 /* Probable that this is method arg if there is no target */ 1255 1256 ExecuteOp = NextOp->Common.Value.Arg; 1257 while (ExecuteOp) 1258 { 1259 if ((ExecuteOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && 1260 (ExecuteOp->Common.Value.Arg == NULL)) 1261 { 1262 /* No target, could be a method arg */ 1263 1264 break; 1265 } 1266 1267 if (NextOp->Common.AmlOpcode == AML_REF_OF_OP) 1268 { 1269 break; 1270 } 1271 1272 ExecuteOp = ExecuteOp->Common.Next; 1273 } 1274 1275 if (!ExecuteOp) 1276 { 1277 /* Has a target, not method arg */ 1278 1279 return (ArgumentCount); 1280 } 1281 } 1282 1283 ArgumentCount++; 1284 NextOp = NextOp->Common.Next; 1285 } 1286 1287 return (ArgumentCount); 1288 } 1289
Indexes created Sun Sep 21 14:09:52 GMT 2025