1 /******************************************************************************* 2 * 3 * Module Name: dmwalk - AML disassembly tree walk 4 * 5 ******************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2009, 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 *****************************************************************************/ 115 116 117 #include "acpi.h" 118 #include "accommon.h" 119 #include "acparser.h" 120 #include "amlcode.h" 121 #include "acdisasm.h" 122 #include "acdebug.h" 123 124 125 #ifdef ACPI_DISASSEMBLER 126 127 #define _COMPONENT ACPI_CA_DEBUGGER 128 ACPI_MODULE_NAME ("dmwalk") 129 130 131 #define DB_FULL_OP_INFO "[%4.4s] @%5.5X #%4.4X: " 132 133 /* Stub for non-compiler code */ 134 135 #ifndef ACPI_ASL_COMPILER 136 void 137 AcpiDmEmitExternals ( 138 void) 139 { 140 return; 141 } 142 #endif 143 144 /* Local prototypes */ 145 146 static ACPI_STATUS 147 AcpiDmDescendingOp ( 148 ACPI_PARSE_OBJECT *Op, 149 UINT32 Level, 150 void *Context); 151 152 static ACPI_STATUS 153 AcpiDmAscendingOp ( 154 ACPI_PARSE_OBJECT *Op, 155 UINT32 Level, 156 void *Context); 157 158 static UINT32 159 AcpiDmBlockType ( 160 ACPI_PARSE_OBJECT *Op); 161 162 163 164 /******************************************************************************* 165 * 166 * FUNCTION: AcpiDmDisassemble 167 * 168 * PARAMETERS: WalkState - Current state 169 * Origin - Starting object 170 * NumOpcodes - Max number of opcodes to be displayed 171 * 172 * RETURN: None 173 * 174 * DESCRIPTION: Disassemble parser object and its children. This is the 175 * main entry point of the disassembler. 176 * 177 ******************************************************************************/ 178 179 void 180 AcpiDmDisassemble ( 181 ACPI_WALK_STATE *WalkState, 182 ACPI_PARSE_OBJECT *Origin, 183 UINT32 NumOpcodes) 184 { 185 ACPI_PARSE_OBJECT *Op = Origin; 186 ACPI_OP_WALK_INFO Info; 187 188 189 if (!Op) 190 { 191 return; 192 } 193 194 Info.Flags = 0; 195 Info.Level = 0; 196 Info.Count = 0; 197 Info.WalkState = WalkState; 198 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); 199 return; 200 } 201 202 203 /******************************************************************************* 204 * 205 * FUNCTION: AcpiDmWalkParseTree 206 * 207 * PARAMETERS: Op - Root Op object 208 * DescendingCallback - Called during tree descent 209 * AscendingCallback - Called during tree ascent 210 * Context - To be passed to the callbacks 211 * 212 * RETURN: Status from callback(s) 213 * 214 * DESCRIPTION: Walk the entire parse tree. 215 * 216 ******************************************************************************/ 217 218 void 219 AcpiDmWalkParseTree ( 220 ACPI_PARSE_OBJECT *Op, 221 ASL_WALK_CALLBACK DescendingCallback, 222 ASL_WALK_CALLBACK AscendingCallback, 223 void *Context) 224 { 225 BOOLEAN NodePreviouslyVisited; 226 ACPI_PARSE_OBJECT *StartOp = Op; 227 ACPI_STATUS Status; 228 ACPI_PARSE_OBJECT *Next; 229 ACPI_OP_WALK_INFO *Info = Context; 230 231 232 Info->Level = 0; 233 NodePreviouslyVisited = FALSE; 234 235 while (Op) 236 { 237 if (NodePreviouslyVisited) 238 { 239 if (AscendingCallback) 240 { 241 Status = AscendingCallback (Op, Info->Level, Context); 242 if (ACPI_FAILURE (Status)) 243 { 244 return; 245 } 246 } 247 } 248 else 249 { 250 /* Let the callback process the node */ 251 252 Status = DescendingCallback (Op, Info->Level, Context); 253 if (ACPI_SUCCESS (Status)) 254 { 255 /* Visit children first, once */ 256 257 Next = AcpiPsGetArg (Op, 0); 258 if (Next) 259 { 260 Info->Level++; 261 Op = Next; 262 continue; 263 } 264 } 265 else if (Status != AE_CTRL_DEPTH) 266 { 267 /* Exit immediately on any error */ 268 269 return; 270 } 271 } 272 273 /* Terminate walk at start op */ 274 275 if (Op == StartOp) 276 { 277 break; 278 } 279 280 /* No more children, re-visit this node */ 281 282 if (!NodePreviouslyVisited) 283 { 284 NodePreviouslyVisited = TRUE; 285 continue; 286 } 287 288 /* No more children, visit peers */ 289 290 if (Op->Common.Next) 291 { 292 Op = Op->Common.Next; 293 NodePreviouslyVisited = FALSE; 294 } 295 else 296 { 297 /* No peers, re-visit parent */ 298 299 if (Info->Level != 0 ) 300 { 301 Info->Level--; 302 } 303 304 Op = Op->Common.Parent; 305 NodePreviouslyVisited = TRUE; 306 } 307 } 308 309 /* If we get here, the walk completed with no errors */ 310 311 return; 312 } 313 314 315 /******************************************************************************* 316 * 317 * FUNCTION: AcpiDmBlockType 318 * 319 * PARAMETERS: Op - Object to be examined 320 * 321 * RETURN: BlockType - not a block, parens, braces, or even both. 322 * 323 * DESCRIPTION: Type of block for this op (parens or braces) 324 * 325 ******************************************************************************/ 326 327 static UINT32 328 AcpiDmBlockType ( 329 ACPI_PARSE_OBJECT *Op) 330 { 331 const ACPI_OPCODE_INFO *OpInfo; 332 333 334 if (!Op) 335 { 336 return (BLOCK_NONE); 337 } 338 339 switch (Op->Common.AmlOpcode) 340 { 341 case AML_ELSE_OP: 342 343 return (BLOCK_BRACE); 344 345 case AML_METHOD_OP: 346 case AML_DEVICE_OP: 347 case AML_SCOPE_OP: 348 case AML_PROCESSOR_OP: 349 case AML_POWER_RES_OP: 350 case AML_THERMAL_ZONE_OP: 351 case AML_IF_OP: 352 case AML_WHILE_OP: 353 case AML_FIELD_OP: 354 case AML_INDEX_FIELD_OP: 355 case AML_BANK_FIELD_OP: 356 357 return (BLOCK_PAREN | BLOCK_BRACE); 358 359 case AML_BUFFER_OP: 360 361 if (Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) 362 { 363 return (BLOCK_NONE); 364 } 365 366 /*lint -fallthrough */ 367 368 case AML_PACKAGE_OP: 369 case AML_VAR_PACKAGE_OP: 370 371 return (BLOCK_PAREN | BLOCK_BRACE); 372 373 case AML_EVENT_OP: 374 375 return (BLOCK_PAREN); 376 377 default: 378 379 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 380 if (OpInfo->Flags & AML_HAS_ARGS) 381 { 382 return (BLOCK_PAREN); 383 } 384 385 return (BLOCK_NONE); 386 } 387 } 388 389 390 /******************************************************************************* 391 * 392 * FUNCTION: AcpiDmListType 393 * 394 * PARAMETERS: Op - Object to be examined 395 * 396 * RETURN: ListType - has commas or not. 397 * 398 * DESCRIPTION: Type of block for this op (parens or braces) 399 * 400 ******************************************************************************/ 401 402 UINT32 403 AcpiDmListType ( 404 ACPI_PARSE_OBJECT *Op) 405 { 406 const ACPI_OPCODE_INFO *OpInfo; 407 408 409 if (!Op) 410 { 411 return (BLOCK_NONE); 412 } 413 414 switch (Op->Common.AmlOpcode) 415 { 416 417 case AML_ELSE_OP: 418 case AML_METHOD_OP: 419 case AML_DEVICE_OP: 420 case AML_SCOPE_OP: 421 case AML_POWER_RES_OP: 422 case AML_PROCESSOR_OP: 423 case AML_THERMAL_ZONE_OP: 424 case AML_IF_OP: 425 case AML_WHILE_OP: 426 case AML_FIELD_OP: 427 case AML_INDEX_FIELD_OP: 428 case AML_BANK_FIELD_OP: 429 430 return (BLOCK_NONE); 431 432 case AML_BUFFER_OP: 433 case AML_PACKAGE_OP: 434 case AML_VAR_PACKAGE_OP: 435 436 return (BLOCK_COMMA_LIST); 437 438 default: 439 440 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 441 if (OpInfo->Flags & AML_HAS_ARGS) 442 { 443 return (BLOCK_COMMA_LIST); 444 } 445 446 return (BLOCK_NONE); 447 } 448 } 449 450 451 /******************************************************************************* 452 * 453 * FUNCTION: AcpiDmDescendingOp 454 * 455 * PARAMETERS: ASL_WALK_CALLBACK 456 * 457 * RETURN: Status 458 * 459 * DESCRIPTION: First visitation of a parse object during tree descent. 460 * Decode opcode name and begin parameter list(s), if any. 461 * 462 ******************************************************************************/ 463 464 static ACPI_STATUS 465 AcpiDmDescendingOp ( 466 ACPI_PARSE_OBJECT *Op, 467 UINT32 Level, 468 void *Context) 469 { 470 ACPI_OP_WALK_INFO *Info = Context; 471 const ACPI_OPCODE_INFO *OpInfo; 472 UINT32 Name; 473 ACPI_PARSE_OBJECT *NextOp; 474 475 476 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 477 { 478 /* Ignore this op -- it was handled elsewhere */ 479 480 return (AE_CTRL_DEPTH); 481 } 482 483 /* Level 0 is at the Definition Block level */ 484 485 if (Level == 0) 486 { 487 /* In verbose mode, print the AML offset, opcode and depth count */ 488 489 if (Info->WalkState) 490 { 491 VERBOSE_PRINT ((DB_FULL_OP_INFO, 492 (Info->WalkState->MethodNode ? 493 Info->WalkState->MethodNode->Name.Ascii : " "), 494 Op->Common.AmlOffset, (UINT32) Op->Common.AmlOpcode)); 495 } 496 497 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 498 { 499 /* This is the beginning of the Definition Block */ 500 501 AcpiOsPrintf ("{\n"); 502 503 /* Emit all External() declarations here */ 504 505 AcpiDmEmitExternals (); 506 return (AE_OK); 507 } 508 } 509 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 510 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 511 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 512 { 513 /* 514 * This is a first-level element of a term list, 515 * indent a new line 516 */ 517 AcpiDmIndent (Level); 518 Info->LastLevel = Level; 519 Info->Count = 0; 520 } 521 522 /* 523 * This is an inexpensive mechanism to try and keep lines from getting 524 * too long. When the limit is hit, start a new line at the previous 525 * indent plus one. A better but more expensive mechanism would be to 526 * keep track of the current column. 527 */ 528 Info->Count++; 529 if (Info->Count /*+Info->LastLevel*/ > 10) 530 { 531 Info->Count = 0; 532 AcpiOsPrintf ("\n"); 533 AcpiDmIndent (Info->LastLevel + 1); 534 } 535 536 /* Print the opcode name */ 537 538 AcpiDmDisassembleOneOp (NULL, Info, Op); 539 540 if (Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) 541 { 542 return (AE_OK); 543 } 544 545 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 546 (Op->Common.AmlOpcode == AML_RETURN_OP)) 547 { 548 Info->Level--; 549 } 550 551 /* Start the opcode argument list if necessary */ 552 553 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 554 555 if ((OpInfo->Flags & AML_HAS_ARGS) || 556 (Op->Common.AmlOpcode == AML_EVENT_OP)) 557 { 558 /* This opcode has an argument list */ 559 560 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 561 { 562 AcpiOsPrintf (" ("); 563 } 564 565 /* If this is a named opcode, print the associated name value */ 566 567 if (OpInfo->Flags & AML_NAMED) 568 { 569 switch (Op->Common.AmlOpcode) 570 { 571 case AML_ALIAS_OP: 572 573 NextOp = AcpiPsGetDepthNext (NULL, Op); 574 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 575 AcpiDmNamestring (NextOp->Common.Value.Name); 576 AcpiOsPrintf (", "); 577 578 /*lint -fallthrough */ 579 580 default: 581 582 Name = AcpiPsGetName (Op); 583 if (Op->Named.Path) 584 { 585 AcpiDmNamestring ((char *) Op->Named.Path); 586 } 587 else 588 { 589 AcpiDmDumpName (Name); 590 } 591 592 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 593 { 594 if (AcpiGbl_DbOpt_verbose) 595 { 596 (void) AcpiPsDisplayObjectPathname (NULL, Op); 597 } 598 } 599 break; 600 } 601 602 switch (Op->Common.AmlOpcode) 603 { 604 case AML_METHOD_OP: 605 606 AcpiDmMethodFlags (Op); 607 AcpiOsPrintf (")"); 608 break; 609 610 611 case AML_NAME_OP: 612 613 /* Check for _HID and related EISAID() */ 614 615 AcpiDmIsEisaId (Op); 616 AcpiOsPrintf (", "); 617 break; 618 619 620 case AML_REGION_OP: 621 622 AcpiDmRegionFlags (Op); 623 break; 624 625 626 case AML_POWER_RES_OP: 627 628 /* Mark the next two Ops as part of the parameter list */ 629 630 AcpiOsPrintf (", "); 631 NextOp = AcpiPsGetDepthNext (NULL, Op); 632 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 633 634 NextOp = NextOp->Common.Next; 635 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 636 return (AE_OK); 637 638 639 case AML_PROCESSOR_OP: 640 641 /* Mark the next three Ops as part of the parameter list */ 642 643 AcpiOsPrintf (", "); 644 NextOp = AcpiPsGetDepthNext (NULL, Op); 645 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 646 647 NextOp = NextOp->Common.Next; 648 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 649 650 NextOp = NextOp->Common.Next; 651 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 652 return (AE_OK); 653 654 655 case AML_MUTEX_OP: 656 case AML_DATA_REGION_OP: 657 658 AcpiOsPrintf (", "); 659 return (AE_OK); 660 661 662 case AML_EVENT_OP: 663 case AML_ALIAS_OP: 664 665 return (AE_OK); 666 667 668 case AML_SCOPE_OP: 669 case AML_DEVICE_OP: 670 case AML_THERMAL_ZONE_OP: 671 672 AcpiOsPrintf (")"); 673 break; 674 675 676 default: 677 678 AcpiOsPrintf ("*** Unhandled named opcode %X\n", Op->Common.AmlOpcode); 679 break; 680 } 681 } 682 683 else switch (Op->Common.AmlOpcode) 684 { 685 case AML_FIELD_OP: 686 case AML_BANK_FIELD_OP: 687 case AML_INDEX_FIELD_OP: 688 689 Info->BitOffset = 0; 690 691 /* Name of the parent OperationRegion */ 692 693 NextOp = AcpiPsGetDepthNext (NULL, Op); 694 AcpiDmNamestring (NextOp->Common.Value.Name); 695 AcpiOsPrintf (", "); 696 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 697 698 switch (Op->Common.AmlOpcode) 699 { 700 case AML_BANK_FIELD_OP: 701 702 /* Namestring - Bank Name */ 703 704 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 705 AcpiDmNamestring (NextOp->Common.Value.Name); 706 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 707 AcpiOsPrintf (", "); 708 709 /* 710 * Bank Value. This is a TermArg in the middle of the parameter 711 * list, must handle it here. 712 * 713 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMLIST 714 * eliminates newline in the output. 715 */ 716 NextOp = NextOp->Common.Next; 717 718 Info->Flags = ACPI_PARSEOP_PARAMLIST; 719 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, AcpiDmAscendingOp, Info); 720 Info->Flags = 0; 721 Info->Level = Level; 722 723 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 724 AcpiOsPrintf (", "); 725 break; 726 727 case AML_INDEX_FIELD_OP: 728 729 /* Namestring - Data Name */ 730 731 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 732 AcpiDmNamestring (NextOp->Common.Value.Name); 733 AcpiOsPrintf (", "); 734 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 735 break; 736 737 default: 738 739 break; 740 } 741 742 AcpiDmFieldFlags (NextOp); 743 break; 744 745 746 case AML_BUFFER_OP: 747 748 /* The next op is the size parameter */ 749 750 NextOp = AcpiPsGetDepthNext (NULL, Op); 751 if (!NextOp) 752 { 753 /* Single-step support */ 754 755 return (AE_OK); 756 } 757 758 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 759 { 760 /* 761 * We have a resource list. Don't need to output 762 * the buffer size Op. Open up a new block 763 */ 764 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 765 NextOp = NextOp->Common.Next; 766 AcpiOsPrintf (")\n"); 767 AcpiDmIndent (Info->Level); 768 AcpiOsPrintf ("{\n"); 769 return (AE_OK); 770 } 771 772 /* Normal Buffer, mark size as in the parameter list */ 773 774 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 775 return (AE_OK); 776 777 778 case AML_VAR_PACKAGE_OP: 779 case AML_IF_OP: 780 case AML_WHILE_OP: 781 782 /* The next op is the size or predicate parameter */ 783 784 NextOp = AcpiPsGetDepthNext (NULL, Op); 785 if (NextOp) 786 { 787 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 788 } 789 return (AE_OK); 790 791 792 case AML_PACKAGE_OP: 793 794 /* The next op is the size or predicate parameter */ 795 796 NextOp = AcpiPsGetDepthNext (NULL, Op); 797 if (NextOp) 798 { 799 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 800 } 801 return (AE_OK); 802 803 804 case AML_MATCH_OP: 805 806 AcpiDmMatchOp (Op); 807 break; 808 809 810 default: 811 812 break; 813 } 814 815 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 816 { 817 AcpiOsPrintf ("\n"); 818 AcpiDmIndent (Level); 819 AcpiOsPrintf ("{\n"); 820 } 821 } 822 823 return (AE_OK); 824 } 825 826 827 /******************************************************************************* 828 * 829 * FUNCTION: AcpiDmAscendingOp 830 * 831 * PARAMETERS: ASL_WALK_CALLBACK 832 * 833 * RETURN: Status 834 * 835 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 836 * tree. Close out any parameter lists and complete the opcode. 837 * 838 ******************************************************************************/ 839 840 static ACPI_STATUS 841 AcpiDmAscendingOp ( 842 ACPI_PARSE_OBJECT *Op, 843 UINT32 Level, 844 void *Context) 845 { 846 ACPI_OP_WALK_INFO *Info = Context; 847 848 849 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 850 { 851 /* Ignore this op -- it was handled elsewhere */ 852 853 return (AE_OK); 854 } 855 856 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 857 { 858 /* Indicates the end of the current descriptor block (table) */ 859 860 AcpiOsPrintf ("}\n\n"); 861 return (AE_OK); 862 } 863 864 switch (AcpiDmBlockType (Op)) 865 { 866 case BLOCK_PAREN: 867 868 /* Completed an op that has arguments, add closing paren */ 869 870 AcpiOsPrintf (")"); 871 872 /* Could be a nested operator, check if comma required */ 873 874 if (!AcpiDmCommaIfListMember (Op)) 875 { 876 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 877 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 878 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 879 { 880 /* 881 * This is a first-level element of a term list 882 * start a new line 883 */ 884 if (!(Info->Flags & ACPI_PARSEOP_PARAMLIST)) 885 { 886 AcpiOsPrintf ("\n"); 887 } 888 } 889 } 890 break; 891 892 893 case BLOCK_BRACE: 894 case (BLOCK_BRACE | BLOCK_PAREN): 895 896 /* Completed an op that has a term list, add closing brace */ 897 898 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 899 { 900 AcpiOsPrintf ("}"); 901 } 902 else 903 { 904 AcpiDmIndent (Level); 905 AcpiOsPrintf ("}"); 906 } 907 908 AcpiDmCommaIfListMember (Op); 909 910 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 911 { 912 AcpiOsPrintf ("\n"); 913 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 914 { 915 if ((Op->Common.AmlOpcode == AML_IF_OP) && 916 (Op->Common.Next) && 917 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 918 { 919 break; 920 } 921 922 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 923 (!Op->Common.Next)) 924 { 925 break; 926 } 927 AcpiOsPrintf ("\n"); 928 } 929 } 930 break; 931 932 933 case BLOCK_NONE: 934 default: 935 936 /* Could be a nested operator, check if comma required */ 937 938 if (!AcpiDmCommaIfListMember (Op)) 939 { 940 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 941 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 942 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 943 { 944 /* 945 * This is a first-level element of a term list 946 * start a new line 947 */ 948 AcpiOsPrintf ("\n"); 949 } 950 } 951 else if (Op->Common.Parent) 952 { 953 switch (Op->Common.Parent->Common.AmlOpcode) 954 { 955 case AML_PACKAGE_OP: 956 case AML_VAR_PACKAGE_OP: 957 958 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 959 { 960 AcpiOsPrintf ("\n"); 961 } 962 break; 963 964 default: 965 966 break; 967 } 968 } 969 break; 970 } 971 972 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) 973 { 974 if ((Op->Common.Next) && 975 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 976 { 977 return (AE_OK); 978 } 979 980 /* 981 * Just completed a parameter node for something like "Buffer (param)". 982 * Close the paren and open up the term list block with a brace 983 */ 984 if (Op->Common.Next) 985 { 986 AcpiOsPrintf (")\n"); 987 AcpiDmIndent (Level - 1); 988 AcpiOsPrintf ("{\n"); 989 } 990 else 991 { 992 Op->Common.Parent->Common.DisasmFlags |= 993 ACPI_PARSEOP_EMPTY_TERMLIST; 994 AcpiOsPrintf (") {"); 995 } 996 } 997 998 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 999 (Op->Common.AmlOpcode == AML_RETURN_OP)) 1000 { 1001 Info->Level++; 1002 } 1003 return (AE_OK); 1004 } 1005 1006 1007 #endif /* ACPI_DISASSEMBLER */ 1008