1 /******************************************************************************* 2 * 3 * Module Name: dmwalk - AML disassembly tree walk 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2015, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #include "acpi.h" 45 #include "accommon.h" 46 #include "acparser.h" 47 #include "amlcode.h" 48 #include "acdebug.h" 49 50 51 #ifdef ACPI_DISASSEMBLER 52 53 #define _COMPONENT ACPI_CA_DEBUGGER 54 ACPI_MODULE_NAME ("dmwalk") 55 56 57 #define DB_FULL_OP_INFO "[%4.4s] @%5.5X #%4.4X: " 58 59 /* Stub for non-compiler code */ 60 61 #ifndef ACPI_ASL_COMPILER 62 void 63 AcpiDmEmitExternals ( 64 void) 65 { 66 return; 67 } 68 #endif 69 70 /* Local prototypes */ 71 72 static ACPI_STATUS 73 AcpiDmDescendingOp ( 74 ACPI_PARSE_OBJECT *Op, 75 UINT32 Level, 76 void *Context); 77 78 static ACPI_STATUS 79 AcpiDmAscendingOp ( 80 ACPI_PARSE_OBJECT *Op, 81 UINT32 Level, 82 void *Context); 83 84 static UINT32 85 AcpiDmBlockType ( 86 ACPI_PARSE_OBJECT *Op); 87 88 89 /******************************************************************************* 90 * 91 * FUNCTION: AcpiDmDisassemble 92 * 93 * PARAMETERS: WalkState - Current state 94 * Origin - Starting object 95 * NumOpcodes - Max number of opcodes to be displayed 96 * 97 * RETURN: None 98 * 99 * DESCRIPTION: Disassemble parser object and its children. This is the 100 * main entry point of the disassembler. 101 * 102 ******************************************************************************/ 103 104 void 105 AcpiDmDisassemble ( 106 ACPI_WALK_STATE *WalkState, 107 ACPI_PARSE_OBJECT *Origin, 108 UINT32 NumOpcodes) 109 { 110 ACPI_PARSE_OBJECT *Op = Origin; 111 ACPI_OP_WALK_INFO Info; 112 113 114 if (!Op) 115 { 116 return; 117 } 118 119 memset (&Info, 0, sizeof (ACPI_OP_WALK_INFO)); 120 Info.WalkState = WalkState; 121 Info.StartAml = Op->Common.Aml - sizeof (ACPI_TABLE_HEADER); 122 Info.AmlOffset = Op->Common.Aml - Info.StartAml; 123 124 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); 125 return; 126 } 127 128 129 /******************************************************************************* 130 * 131 * FUNCTION: AcpiDmWalkParseTree 132 * 133 * PARAMETERS: Op - Root Op object 134 * DescendingCallback - Called during tree descent 135 * AscendingCallback - Called during tree ascent 136 * Context - To be passed to the callbacks 137 * 138 * RETURN: Status from callback(s) 139 * 140 * DESCRIPTION: Walk the entire parse tree. 141 * 142 ******************************************************************************/ 143 144 void 145 AcpiDmWalkParseTree ( 146 ACPI_PARSE_OBJECT *Op, 147 ASL_WALK_CALLBACK DescendingCallback, 148 ASL_WALK_CALLBACK AscendingCallback, 149 void *Context) 150 { 151 BOOLEAN NodePreviouslyVisited; 152 ACPI_PARSE_OBJECT *StartOp = Op; 153 ACPI_STATUS Status; 154 ACPI_PARSE_OBJECT *Next; 155 ACPI_OP_WALK_INFO *Info = Context; 156 157 158 Info->Level = 0; 159 NodePreviouslyVisited = FALSE; 160 161 while (Op) 162 { 163 if (NodePreviouslyVisited) 164 { 165 if (AscendingCallback) 166 { 167 Status = AscendingCallback (Op, Info->Level, Context); 168 if (ACPI_FAILURE (Status)) 169 { 170 return; 171 } 172 } 173 } 174 else 175 { 176 /* Let the callback process the node */ 177 178 Status = DescendingCallback (Op, Info->Level, Context); 179 if (ACPI_SUCCESS (Status)) 180 { 181 /* Visit children first, once */ 182 183 Next = AcpiPsGetArg (Op, 0); 184 if (Next) 185 { 186 Info->Level++; 187 Op = Next; 188 continue; 189 } 190 } 191 else if (Status != AE_CTRL_DEPTH) 192 { 193 /* Exit immediately on any error */ 194 195 return; 196 } 197 } 198 199 /* Terminate walk at start op */ 200 201 if (Op == StartOp) 202 { 203 break; 204 } 205 206 /* No more children, re-visit this node */ 207 208 if (!NodePreviouslyVisited) 209 { 210 NodePreviouslyVisited = TRUE; 211 continue; 212 } 213 214 /* No more children, visit peers */ 215 216 if (Op->Common.Next) 217 { 218 Op = Op->Common.Next; 219 NodePreviouslyVisited = FALSE; 220 } 221 else 222 { 223 /* No peers, re-visit parent */ 224 225 if (Info->Level != 0 ) 226 { 227 Info->Level--; 228 } 229 230 Op = Op->Common.Parent; 231 NodePreviouslyVisited = TRUE; 232 } 233 } 234 235 /* If we get here, the walk completed with no errors */ 236 237 return; 238 } 239 240 241 /******************************************************************************* 242 * 243 * FUNCTION: AcpiDmBlockType 244 * 245 * PARAMETERS: Op - Object to be examined 246 * 247 * RETURN: BlockType - not a block, parens, braces, or even both. 248 * 249 * DESCRIPTION: Type of block for this op (parens or braces) 250 * 251 ******************************************************************************/ 252 253 static UINT32 254 AcpiDmBlockType ( 255 ACPI_PARSE_OBJECT *Op) 256 { 257 const ACPI_OPCODE_INFO *OpInfo; 258 259 260 if (!Op) 261 { 262 return (BLOCK_NONE); 263 } 264 265 switch (Op->Common.AmlOpcode) 266 { 267 case AML_ELSE_OP: 268 269 return (BLOCK_BRACE); 270 271 case AML_METHOD_OP: 272 case AML_DEVICE_OP: 273 case AML_SCOPE_OP: 274 case AML_PROCESSOR_OP: 275 case AML_POWER_RES_OP: 276 case AML_THERMAL_ZONE_OP: 277 case AML_IF_OP: 278 case AML_WHILE_OP: 279 case AML_FIELD_OP: 280 case AML_INDEX_FIELD_OP: 281 case AML_BANK_FIELD_OP: 282 283 return (BLOCK_PAREN | BLOCK_BRACE); 284 285 case AML_BUFFER_OP: 286 287 if ((Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) || 288 (Op->Common.DisasmOpcode == ACPI_DASM_UUID) || 289 (Op->Common.DisasmOpcode == ACPI_DASM_PLD_METHOD)) 290 { 291 return (BLOCK_NONE); 292 } 293 294 /*lint -fallthrough */ 295 296 case AML_PACKAGE_OP: 297 case AML_VAR_PACKAGE_OP: 298 299 return (BLOCK_PAREN | BLOCK_BRACE); 300 301 case AML_EVENT_OP: 302 303 return (BLOCK_PAREN); 304 305 case AML_INT_METHODCALL_OP: 306 307 if (Op->Common.Parent && 308 ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 309 (Op->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))) 310 { 311 /* This is a reference to a method, not an invocation */ 312 313 return (BLOCK_NONE); 314 } 315 316 /*lint -fallthrough */ 317 318 default: 319 320 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 321 if (OpInfo->Flags & AML_HAS_ARGS) 322 { 323 return (BLOCK_PAREN); 324 } 325 326 return (BLOCK_NONE); 327 } 328 } 329 330 331 /******************************************************************************* 332 * 333 * FUNCTION: AcpiDmListType 334 * 335 * PARAMETERS: Op - Object to be examined 336 * 337 * RETURN: ListType - has commas or not. 338 * 339 * DESCRIPTION: Type of block for this op (parens or braces) 340 * 341 ******************************************************************************/ 342 343 UINT32 344 AcpiDmListType ( 345 ACPI_PARSE_OBJECT *Op) 346 { 347 const ACPI_OPCODE_INFO *OpInfo; 348 349 350 if (!Op) 351 { 352 return (BLOCK_NONE); 353 } 354 355 switch (Op->Common.AmlOpcode) 356 { 357 358 case AML_ELSE_OP: 359 case AML_METHOD_OP: 360 case AML_DEVICE_OP: 361 case AML_SCOPE_OP: 362 case AML_POWER_RES_OP: 363 case AML_PROCESSOR_OP: 364 case AML_THERMAL_ZONE_OP: 365 case AML_IF_OP: 366 case AML_WHILE_OP: 367 case AML_FIELD_OP: 368 case AML_INDEX_FIELD_OP: 369 case AML_BANK_FIELD_OP: 370 371 return (BLOCK_NONE); 372 373 case AML_BUFFER_OP: 374 case AML_PACKAGE_OP: 375 case AML_VAR_PACKAGE_OP: 376 377 return (BLOCK_COMMA_LIST); 378 379 default: 380 381 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 382 if (OpInfo->Flags & AML_HAS_ARGS) 383 { 384 return (BLOCK_COMMA_LIST); 385 } 386 387 return (BLOCK_NONE); 388 } 389 } 390 391 392 /******************************************************************************* 393 * 394 * FUNCTION: AcpiDmDescendingOp 395 * 396 * PARAMETERS: ASL_WALK_CALLBACK 397 * 398 * RETURN: Status 399 * 400 * DESCRIPTION: First visitation of a parse object during tree descent. 401 * Decode opcode name and begin parameter list(s), if any. 402 * 403 ******************************************************************************/ 404 405 static ACPI_STATUS 406 AcpiDmDescendingOp ( 407 ACPI_PARSE_OBJECT *Op, 408 UINT32 Level, 409 void *Context) 410 { 411 ACPI_OP_WALK_INFO *Info = Context; 412 const ACPI_OPCODE_INFO *OpInfo; 413 UINT32 Name; 414 ACPI_PARSE_OBJECT *NextOp; 415 UINT32 AmlOffset; 416 417 418 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 419 420 /* Listing support to dump the AML code after the ASL statement */ 421 422 if (AcpiGbl_DmOpt_Listing) 423 { 424 /* We only care about these classes of objects */ 425 426 if ((OpInfo->Class == AML_CLASS_NAMED_OBJECT) || 427 (OpInfo->Class == AML_CLASS_CONTROL) || 428 (OpInfo->Class == AML_CLASS_CREATE) || 429 ((OpInfo->Class == AML_CLASS_EXECUTE) && (!Op->Common.Next))) 430 { 431 if (AcpiGbl_DmOpt_Listing && Info->PreviousAml) 432 { 433 /* Dump the AML byte code for the previous Op */ 434 435 if (Op->Common.Aml > Info->PreviousAml) 436 { 437 AcpiOsPrintf ("\n"); 438 AcpiUtDumpBuffer ( 439 (Info->StartAml + Info->AmlOffset), 440 (Op->Common.Aml - Info->PreviousAml), 441 DB_BYTE_DISPLAY, 442 Info->AmlOffset); 443 AcpiOsPrintf ("\n"); 444 } 445 446 Info->AmlOffset = (Op->Common.Aml - Info->StartAml); 447 } 448 449 Info->PreviousAml = Op->Common.Aml; 450 } 451 } 452 453 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 454 { 455 /* Ignore this op -- it was handled elsewhere */ 456 457 return (AE_CTRL_DEPTH); 458 } 459 460 /* Level 0 is at the Definition Block level */ 461 462 if (Level == 0) 463 { 464 /* In verbose mode, print the AML offset, opcode and depth count */ 465 466 if (Info->WalkState) 467 { 468 AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml, 469 Info->WalkState->ParserState.AmlStart); 470 if (AcpiGbl_DmOpt_Verbose) 471 { 472 AcpiOsPrintf (DB_FULL_OP_INFO, 473 (Info->WalkState->MethodNode ? 474 Info->WalkState->MethodNode->Name.Ascii : " "), 475 AmlOffset, (UINT32) Op->Common.AmlOpcode); 476 } 477 } 478 479 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 480 { 481 /* This is the beginning of the Definition Block */ 482 483 AcpiOsPrintf ("{\n"); 484 485 /* Emit all External() declarations here */ 486 487 AcpiDmEmitExternals (); 488 return (AE_OK); 489 } 490 } 491 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 492 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 493 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 494 { 495 /* 496 * This is a first-level element of a term list, 497 * indent a new line 498 */ 499 switch (Op->Common.AmlOpcode) 500 { 501 case AML_NOOP_OP: 502 /* 503 * Optionally just ignore this opcode. Some tables use 504 * NoOp opcodes for "padding" out packages that the BIOS 505 * changes dynamically. This can leave hundreds or 506 * thousands of NoOp opcodes that if disassembled, 507 * cannot be compiled because they are syntactically 508 * incorrect. 509 */ 510 if (AcpiGbl_IgnoreNoopOperator) 511 { 512 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 513 return (AE_OK); 514 } 515 516 /* Fallthrough */ 517 518 default: 519 520 AcpiDmIndent (Level); 521 break; 522 } 523 524 Info->LastLevel = Level; 525 Info->Count = 0; 526 } 527 528 /* 529 * This is an inexpensive mechanism to try and keep lines from getting 530 * too long. When the limit is hit, start a new line at the previous 531 * indent plus one. A better but more expensive mechanism would be to 532 * keep track of the current column. 533 */ 534 Info->Count++; 535 if (Info->Count /* +Info->LastLevel */ > 12) 536 { 537 Info->Count = 0; 538 AcpiOsPrintf ("\n"); 539 AcpiDmIndent (Info->LastLevel + 1); 540 } 541 542 /* If ASL+ is enabled, check for a C-style operator */ 543 544 if (AcpiDmCheckForSymbolicOpcode (Op, Info)) 545 { 546 return (AE_OK); 547 } 548 549 /* Print the opcode name */ 550 551 AcpiDmDisassembleOneOp (NULL, Info, Op); 552 553 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) || 554 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP)) 555 { 556 return (AE_OK); 557 } 558 559 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 560 (Op->Common.AmlOpcode == AML_RETURN_OP)) 561 { 562 Info->Level--; 563 } 564 565 /* Start the opcode argument list if necessary */ 566 567 if ((OpInfo->Flags & AML_HAS_ARGS) || 568 (Op->Common.AmlOpcode == AML_EVENT_OP)) 569 { 570 /* This opcode has an argument list */ 571 572 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 573 { 574 AcpiOsPrintf (" ("); 575 } 576 577 /* If this is a named opcode, print the associated name value */ 578 579 if (OpInfo->Flags & AML_NAMED) 580 { 581 switch (Op->Common.AmlOpcode) 582 { 583 case AML_ALIAS_OP: 584 585 NextOp = AcpiPsGetDepthNext (NULL, Op); 586 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 587 AcpiDmNamestring (NextOp->Common.Value.Name); 588 AcpiOsPrintf (", "); 589 590 /*lint -fallthrough */ 591 592 default: 593 594 Name = AcpiPsGetName (Op); 595 if (Op->Named.Path) 596 { 597 AcpiDmNamestring ((char *) Op->Named.Path); 598 } 599 else 600 { 601 AcpiDmDumpName (Name); 602 } 603 604 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 605 { 606 if (AcpiGbl_DmOpt_Verbose) 607 { 608 (void) AcpiPsDisplayObjectPathname (NULL, Op); 609 } 610 } 611 break; 612 } 613 614 switch (Op->Common.AmlOpcode) 615 { 616 case AML_METHOD_OP: 617 618 AcpiDmMethodFlags (Op); 619 AcpiOsPrintf (")"); 620 621 /* Emit description comment for Method() with a predefined ACPI name */ 622 623 AcpiDmPredefinedDescription (Op); 624 break; 625 626 case AML_NAME_OP: 627 628 /* Check for _HID and related EISAID() */ 629 630 AcpiDmCheckForHardwareId (Op); 631 AcpiOsPrintf (", "); 632 break; 633 634 case AML_REGION_OP: 635 636 AcpiDmRegionFlags (Op); 637 break; 638 639 case AML_POWER_RES_OP: 640 641 /* Mark the next two 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 return (AE_OK); 650 651 case AML_PROCESSOR_OP: 652 653 /* Mark the next three Ops as part of the parameter list */ 654 655 AcpiOsPrintf (", "); 656 NextOp = AcpiPsGetDepthNext (NULL, Op); 657 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 658 659 NextOp = NextOp->Common.Next; 660 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 661 662 NextOp = NextOp->Common.Next; 663 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 664 return (AE_OK); 665 666 case AML_MUTEX_OP: 667 case AML_DATA_REGION_OP: 668 669 AcpiOsPrintf (", "); 670 return (AE_OK); 671 672 case AML_EVENT_OP: 673 case AML_ALIAS_OP: 674 675 return (AE_OK); 676 677 case AML_SCOPE_OP: 678 case AML_DEVICE_OP: 679 case AML_THERMAL_ZONE_OP: 680 681 AcpiOsPrintf (")"); 682 break; 683 684 default: 685 686 AcpiOsPrintf ("*** Unhandled named opcode %X\n", 687 Op->Common.AmlOpcode); 688 break; 689 } 690 } 691 692 else switch (Op->Common.AmlOpcode) 693 { 694 case AML_FIELD_OP: 695 case AML_BANK_FIELD_OP: 696 case AML_INDEX_FIELD_OP: 697 698 Info->BitOffset = 0; 699 700 /* Name of the parent OperationRegion */ 701 702 NextOp = AcpiPsGetDepthNext (NULL, Op); 703 AcpiDmNamestring (NextOp->Common.Value.Name); 704 AcpiOsPrintf (", "); 705 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 706 707 switch (Op->Common.AmlOpcode) 708 { 709 case AML_BANK_FIELD_OP: 710 711 /* Namestring - Bank Name */ 712 713 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 714 AcpiDmNamestring (NextOp->Common.Value.Name); 715 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 716 AcpiOsPrintf (", "); 717 718 /* 719 * Bank Value. This is a TermArg in the middle of the parameter 720 * list, must handle it here. 721 * 722 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMLIST 723 * eliminates newline in the output. 724 */ 725 NextOp = NextOp->Common.Next; 726 727 Info->Flags = ACPI_PARSEOP_PARAMLIST; 728 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, 729 AcpiDmAscendingOp, Info); 730 Info->Flags = 0; 731 Info->Level = Level; 732 733 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 734 AcpiOsPrintf (", "); 735 break; 736 737 case AML_INDEX_FIELD_OP: 738 739 /* Namestring - Data Name */ 740 741 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 742 AcpiDmNamestring (NextOp->Common.Value.Name); 743 AcpiOsPrintf (", "); 744 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 745 break; 746 747 default: 748 749 break; 750 } 751 752 AcpiDmFieldFlags (NextOp); 753 break; 754 755 case AML_BUFFER_OP: 756 757 /* The next op is the size parameter */ 758 759 NextOp = AcpiPsGetDepthNext (NULL, Op); 760 if (!NextOp) 761 { 762 /* Single-step support */ 763 764 return (AE_OK); 765 } 766 767 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 768 { 769 /* 770 * We have a resource list. Don't need to output 771 * the buffer size Op. Open up a new block 772 */ 773 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 774 NextOp = NextOp->Common.Next; 775 AcpiOsPrintf (")"); 776 777 /* Emit description comment for Name() with a predefined ACPI name */ 778 779 AcpiDmPredefinedDescription (Op->Asl.Parent); 780 781 AcpiOsPrintf ("\n"); 782 AcpiDmIndent (Info->Level); 783 AcpiOsPrintf ("{\n"); 784 return (AE_OK); 785 } 786 787 /* Normal Buffer, mark size as in the parameter list */ 788 789 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 790 return (AE_OK); 791 792 case AML_VAR_PACKAGE_OP: 793 case AML_IF_OP: 794 case AML_WHILE_OP: 795 796 /* The next op is the size or predicate parameter */ 797 798 NextOp = AcpiPsGetDepthNext (NULL, Op); 799 if (NextOp) 800 { 801 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 802 } 803 return (AE_OK); 804 805 case AML_PACKAGE_OP: 806 807 /* The next op is the size parameter */ 808 809 NextOp = AcpiPsGetDepthNext (NULL, Op); 810 if (NextOp) 811 { 812 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 813 } 814 return (AE_OK); 815 816 case AML_MATCH_OP: 817 818 AcpiDmMatchOp (Op); 819 break; 820 821 default: 822 823 break; 824 } 825 826 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 827 { 828 AcpiOsPrintf ("\n"); 829 AcpiDmIndent (Level); 830 AcpiOsPrintf ("{\n"); 831 } 832 } 833 834 return (AE_OK); 835 } 836 837 838 /******************************************************************************* 839 * 840 * FUNCTION: AcpiDmAscendingOp 841 * 842 * PARAMETERS: ASL_WALK_CALLBACK 843 * 844 * RETURN: Status 845 * 846 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 847 * tree. Close out any parameter lists and complete the opcode. 848 * 849 ******************************************************************************/ 850 851 static ACPI_STATUS 852 AcpiDmAscendingOp ( 853 ACPI_PARSE_OBJECT *Op, 854 UINT32 Level, 855 void *Context) 856 { 857 ACPI_OP_WALK_INFO *Info = Context; 858 ACPI_PARSE_OBJECT *ParentOp; 859 860 861 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 862 { 863 /* Ignore this op -- it was handled elsewhere */ 864 865 return (AE_OK); 866 } 867 868 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 869 { 870 /* Indicates the end of the current descriptor block (table) */ 871 872 AcpiOsPrintf ("}\n\n"); 873 return (AE_OK); 874 } 875 876 switch (AcpiDmBlockType (Op)) 877 { 878 case BLOCK_PAREN: 879 880 /* Completed an op that has arguments, add closing paren if needed */ 881 882 AcpiDmCloseOperator (Op); 883 884 if (Op->Common.AmlOpcode == AML_NAME_OP) 885 { 886 /* Emit description comment for Name() with a predefined ACPI name */ 887 888 AcpiDmPredefinedDescription (Op); 889 } 890 else 891 { 892 /* For Create* operators, attempt to emit resource tag description */ 893 894 AcpiDmFieldPredefinedDescription (Op); 895 } 896 897 /* Decode Notify() values */ 898 899 if (Op->Common.AmlOpcode == AML_NOTIFY_OP) 900 { 901 AcpiDmNotifyDescription (Op); 902 } 903 904 AcpiDmDisplayTargetPathname (Op); 905 906 /* Could be a nested operator, check if comma required */ 907 908 if (!AcpiDmCommaIfListMember (Op)) 909 { 910 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 911 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 912 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 913 { 914 /* 915 * This is a first-level element of a term list 916 * start a new line 917 */ 918 if (!(Info->Flags & ACPI_PARSEOP_PARAMLIST)) 919 { 920 AcpiOsPrintf ("\n"); 921 } 922 } 923 } 924 break; 925 926 case BLOCK_BRACE: 927 case (BLOCK_BRACE | BLOCK_PAREN): 928 929 /* Completed an op that has a term list, add closing brace */ 930 931 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 932 { 933 AcpiOsPrintf ("}"); 934 } 935 else 936 { 937 AcpiDmIndent (Level); 938 AcpiOsPrintf ("}"); 939 } 940 941 AcpiDmCommaIfListMember (Op); 942 943 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 944 { 945 AcpiOsPrintf ("\n"); 946 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 947 { 948 if ((Op->Common.AmlOpcode == AML_IF_OP) && 949 (Op->Common.Next) && 950 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 951 { 952 break; 953 } 954 955 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 956 (!Op->Common.Next)) 957 { 958 break; 959 } 960 AcpiOsPrintf ("\n"); 961 } 962 } 963 break; 964 965 case BLOCK_NONE: 966 default: 967 968 /* Could be a nested operator, check if comma required */ 969 970 if (!AcpiDmCommaIfListMember (Op)) 971 { 972 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 973 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 974 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 975 { 976 /* 977 * This is a first-level element of a term list 978 * start a new line 979 */ 980 AcpiOsPrintf ("\n"); 981 } 982 } 983 else if (Op->Common.Parent) 984 { 985 switch (Op->Common.Parent->Common.AmlOpcode) 986 { 987 case AML_PACKAGE_OP: 988 case AML_VAR_PACKAGE_OP: 989 990 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 991 { 992 AcpiOsPrintf ("\n"); 993 } 994 break; 995 996 default: 997 998 break; 999 } 1000 } 1001 break; 1002 } 1003 1004 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) 1005 { 1006 if ((Op->Common.Next) && 1007 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 1008 { 1009 return (AE_OK); 1010 } 1011 1012 /* 1013 * The parent Op is guaranteed to be valid because of the flag 1014 * ACPI_PARSEOP_PARAMLIST -- which means that this op is part of 1015 * a parameter list and thus has a valid parent. 1016 */ 1017 ParentOp = Op->Common.Parent; 1018 1019 /* 1020 * Just completed a parameter node for something like "Buffer (param)". 1021 * Close the paren and open up the term list block with a brace 1022 */ 1023 if (Op->Common.Next) 1024 { 1025 AcpiOsPrintf (")"); 1026 1027 /* 1028 * Emit a description comment for a Name() operator that is a 1029 * predefined ACPI name. Must check the grandparent. 1030 */ 1031 ParentOp = ParentOp->Common.Parent; 1032 if (ParentOp && 1033 (ParentOp->Asl.AmlOpcode == AML_NAME_OP)) 1034 { 1035 AcpiDmPredefinedDescription (ParentOp); 1036 } 1037 1038 AcpiOsPrintf ("\n"); 1039 AcpiDmIndent (Level - 1); 1040 AcpiOsPrintf ("{\n"); 1041 } 1042 else 1043 { 1044 ParentOp->Common.DisasmFlags |= ACPI_PARSEOP_EMPTY_TERMLIST; 1045 AcpiOsPrintf (") {"); 1046 } 1047 } 1048 1049 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 1050 (Op->Common.AmlOpcode == AML_RETURN_OP)) 1051 { 1052 Info->Level++; 1053 } 1054 1055 /* 1056 * For ASL+, check for and emit a C-style symbol. If valid, the 1057 * symbol string has been deferred until after the first operand 1058 */ 1059 if (AcpiGbl_CstyleDisassembly) 1060 { 1061 if (Op->Asl.OperatorSymbol) 1062 { 1063 AcpiOsPrintf ("%s", Op->Asl.OperatorSymbol); 1064 Op->Asl.OperatorSymbol = NULL; 1065 } 1066 } 1067 1068 return (AE_OK); 1069 } 1070 1071 #endif /* ACPI_DISASSEMBLER */ 1072