1 /******************************************************************************* 2 * 3 * Module Name: dmwalk - AML disassembly tree walk 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2016, 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 #define _COMPONENT ACPI_CA_DEBUGGER 52 ACPI_MODULE_NAME ("dmwalk") 53 54 55 #define DB_FULL_OP_INFO "[%4.4s] @%5.5X #%4.4X: " 56 57 /* Stub for non-compiler code */ 58 59 #ifndef ACPI_ASL_COMPILER 60 void 61 AcpiDmEmitExternals ( 62 void) 63 { 64 return; 65 } 66 #endif 67 68 /* Local prototypes */ 69 70 static ACPI_STATUS 71 AcpiDmDescendingOp ( 72 ACPI_PARSE_OBJECT *Op, 73 UINT32 Level, 74 void *Context); 75 76 static ACPI_STATUS 77 AcpiDmAscendingOp ( 78 ACPI_PARSE_OBJECT *Op, 79 UINT32 Level, 80 void *Context); 81 82 static UINT32 83 AcpiDmBlockType ( 84 ACPI_PARSE_OBJECT *Op); 85 86 87 /******************************************************************************* 88 * 89 * FUNCTION: AcpiDmDisassemble 90 * 91 * PARAMETERS: WalkState - Current state 92 * Origin - Starting object 93 * NumOpcodes - Max number of opcodes to be displayed 94 * 95 * RETURN: None 96 * 97 * DESCRIPTION: Disassemble parser object and its children. This is the 98 * main entry point of the disassembler. 99 * 100 ******************************************************************************/ 101 102 void 103 AcpiDmDisassemble ( 104 ACPI_WALK_STATE *WalkState, 105 ACPI_PARSE_OBJECT *Origin, 106 UINT32 NumOpcodes) 107 { 108 ACPI_PARSE_OBJECT *Op = Origin; 109 ACPI_OP_WALK_INFO Info; 110 111 112 if (!Op) 113 { 114 return; 115 } 116 117 memset (&Info, 0, sizeof (ACPI_OP_WALK_INFO)); 118 Info.WalkState = WalkState; 119 Info.StartAml = Op->Common.Aml - sizeof (ACPI_TABLE_HEADER); 120 Info.AmlOffset = Op->Common.Aml - Info.StartAml; 121 122 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); 123 return; 124 } 125 126 127 /******************************************************************************* 128 * 129 * FUNCTION: AcpiDmWalkParseTree 130 * 131 * PARAMETERS: Op - Root Op object 132 * DescendingCallback - Called during tree descent 133 * AscendingCallback - Called during tree ascent 134 * Context - To be passed to the callbacks 135 * 136 * RETURN: Status from callback(s) 137 * 138 * DESCRIPTION: Walk the entire parse tree. 139 * 140 ******************************************************************************/ 141 142 void 143 AcpiDmWalkParseTree ( 144 ACPI_PARSE_OBJECT *Op, 145 ASL_WALK_CALLBACK DescendingCallback, 146 ASL_WALK_CALLBACK AscendingCallback, 147 void *Context) 148 { 149 BOOLEAN NodePreviouslyVisited; 150 ACPI_PARSE_OBJECT *StartOp = Op; 151 ACPI_STATUS Status; 152 ACPI_PARSE_OBJECT *Next; 153 ACPI_OP_WALK_INFO *Info = Context; 154 155 156 Info->Level = 0; 157 NodePreviouslyVisited = FALSE; 158 159 while (Op) 160 { 161 if (NodePreviouslyVisited) 162 { 163 if (AscendingCallback) 164 { 165 Status = AscendingCallback (Op, Info->Level, Context); 166 if (ACPI_FAILURE (Status)) 167 { 168 return; 169 } 170 } 171 } 172 else 173 { 174 /* Let the callback process the node */ 175 176 Status = DescendingCallback (Op, Info->Level, Context); 177 if (ACPI_SUCCESS (Status)) 178 { 179 /* Visit children first, once */ 180 181 Next = AcpiPsGetArg (Op, 0); 182 if (Next) 183 { 184 Info->Level++; 185 Op = Next; 186 continue; 187 } 188 } 189 else if (Status != AE_CTRL_DEPTH) 190 { 191 /* Exit immediately on any error */ 192 193 return; 194 } 195 } 196 197 /* Terminate walk at start op */ 198 199 if (Op == StartOp) 200 { 201 break; 202 } 203 204 /* No more children, re-visit this node */ 205 206 if (!NodePreviouslyVisited) 207 { 208 NodePreviouslyVisited = TRUE; 209 continue; 210 } 211 212 /* No more children, visit peers */ 213 214 if (Op->Common.Next) 215 { 216 Op = Op->Common.Next; 217 NodePreviouslyVisited = FALSE; 218 } 219 else 220 { 221 /* No peers, re-visit parent */ 222 223 if (Info->Level != 0 ) 224 { 225 Info->Level--; 226 } 227 228 Op = Op->Common.Parent; 229 NodePreviouslyVisited = TRUE; 230 } 231 } 232 233 /* If we get here, the walk completed with no errors */ 234 235 return; 236 } 237 238 239 /******************************************************************************* 240 * 241 * FUNCTION: AcpiDmBlockType 242 * 243 * PARAMETERS: Op - Object to be examined 244 * 245 * RETURN: BlockType - not a block, parens, braces, or even both. 246 * 247 * DESCRIPTION: Type of block for this op (parens or braces) 248 * 249 ******************************************************************************/ 250 251 static UINT32 252 AcpiDmBlockType ( 253 ACPI_PARSE_OBJECT *Op) 254 { 255 const ACPI_OPCODE_INFO *OpInfo; 256 257 258 if (!Op) 259 { 260 return (BLOCK_NONE); 261 } 262 263 switch (Op->Common.AmlOpcode) 264 { 265 case AML_ELSE_OP: 266 267 return (BLOCK_BRACE); 268 269 case AML_METHOD_OP: 270 case AML_DEVICE_OP: 271 case AML_SCOPE_OP: 272 case AML_PROCESSOR_OP: 273 case AML_POWER_RES_OP: 274 case AML_THERMAL_ZONE_OP: 275 case AML_IF_OP: 276 case AML_WHILE_OP: 277 case AML_FIELD_OP: 278 case AML_INDEX_FIELD_OP: 279 case AML_BANK_FIELD_OP: 280 281 return (BLOCK_PAREN | BLOCK_BRACE); 282 283 case AML_BUFFER_OP: 284 285 if ((Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) || 286 (Op->Common.DisasmOpcode == ACPI_DASM_UUID) || 287 (Op->Common.DisasmOpcode == ACPI_DASM_PLD_METHOD)) 288 { 289 return (BLOCK_NONE); 290 } 291 292 /*lint -fallthrough */ 293 294 case AML_PACKAGE_OP: 295 case AML_VAR_PACKAGE_OP: 296 297 return (BLOCK_PAREN | BLOCK_BRACE); 298 299 case AML_EVENT_OP: 300 301 return (BLOCK_PAREN); 302 303 case AML_INT_METHODCALL_OP: 304 305 if (Op->Common.Parent && 306 ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 307 (Op->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))) 308 { 309 /* This is a reference to a method, not an invocation */ 310 311 return (BLOCK_NONE); 312 } 313 314 /*lint -fallthrough */ 315 316 default: 317 318 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 319 if (OpInfo->Flags & AML_HAS_ARGS) 320 { 321 return (BLOCK_PAREN); 322 } 323 324 return (BLOCK_NONE); 325 } 326 } 327 328 329 /******************************************************************************* 330 * 331 * FUNCTION: AcpiDmListType 332 * 333 * PARAMETERS: Op - Object to be examined 334 * 335 * RETURN: ListType - has commas or not. 336 * 337 * DESCRIPTION: Type of block for this op (parens or braces) 338 * 339 ******************************************************************************/ 340 341 UINT32 342 AcpiDmListType ( 343 ACPI_PARSE_OBJECT *Op) 344 { 345 const ACPI_OPCODE_INFO *OpInfo; 346 347 348 if (!Op) 349 { 350 return (BLOCK_NONE); 351 } 352 353 switch (Op->Common.AmlOpcode) 354 { 355 356 case AML_ELSE_OP: 357 case AML_METHOD_OP: 358 case AML_DEVICE_OP: 359 case AML_SCOPE_OP: 360 case AML_POWER_RES_OP: 361 case AML_PROCESSOR_OP: 362 case AML_THERMAL_ZONE_OP: 363 case AML_IF_OP: 364 case AML_WHILE_OP: 365 case AML_FIELD_OP: 366 case AML_INDEX_FIELD_OP: 367 case AML_BANK_FIELD_OP: 368 369 return (BLOCK_NONE); 370 371 case AML_BUFFER_OP: 372 case AML_PACKAGE_OP: 373 case AML_VAR_PACKAGE_OP: 374 375 return (BLOCK_COMMA_LIST); 376 377 default: 378 379 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 380 if (OpInfo->Flags & AML_HAS_ARGS) 381 { 382 return (BLOCK_COMMA_LIST); 383 } 384 385 return (BLOCK_NONE); 386 } 387 } 388 389 390 /******************************************************************************* 391 * 392 * FUNCTION: AcpiDmDescendingOp 393 * 394 * PARAMETERS: ASL_WALK_CALLBACK 395 * 396 * RETURN: Status 397 * 398 * DESCRIPTION: First visitation of a parse object during tree descent. 399 * Decode opcode name and begin parameter list(s), if any. 400 * 401 ******************************************************************************/ 402 403 static ACPI_STATUS 404 AcpiDmDescendingOp ( 405 ACPI_PARSE_OBJECT *Op, 406 UINT32 Level, 407 void *Context) 408 { 409 ACPI_OP_WALK_INFO *Info = Context; 410 const ACPI_OPCODE_INFO *OpInfo; 411 UINT32 Name; 412 ACPI_PARSE_OBJECT *NextOp; 413 UINT32 AmlOffset; 414 415 416 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 417 418 /* Listing support to dump the AML code after the ASL statement */ 419 420 if (AcpiGbl_DmOpt_Listing) 421 { 422 /* We only care about these classes of objects */ 423 424 if ((OpInfo->Class == AML_CLASS_NAMED_OBJECT) || 425 (OpInfo->Class == AML_CLASS_CONTROL) || 426 (OpInfo->Class == AML_CLASS_CREATE) || 427 ((OpInfo->Class == AML_CLASS_EXECUTE) && (!Op->Common.Next))) 428 { 429 if (AcpiGbl_DmOpt_Listing && Info->PreviousAml) 430 { 431 /* Dump the AML byte code for the previous Op */ 432 433 if (Op->Common.Aml > Info->PreviousAml) 434 { 435 AcpiOsPrintf ("\n"); 436 AcpiUtDumpBuffer ( 437 (Info->StartAml + Info->AmlOffset), 438 (Op->Common.Aml - Info->PreviousAml), 439 DB_BYTE_DISPLAY, 440 Info->AmlOffset); 441 AcpiOsPrintf ("\n"); 442 } 443 444 Info->AmlOffset = (Op->Common.Aml - Info->StartAml); 445 } 446 447 Info->PreviousAml = Op->Common.Aml; 448 } 449 } 450 451 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 452 { 453 /* Ignore this op -- it was handled elsewhere */ 454 455 return (AE_CTRL_DEPTH); 456 } 457 458 /* Level 0 is at the Definition Block level */ 459 460 if (Level == 0) 461 { 462 /* In verbose mode, print the AML offset, opcode and depth count */ 463 464 if (Info->WalkState) 465 { 466 AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml, 467 Info->WalkState->ParserState.AmlStart); 468 if (AcpiGbl_DmOpt_Verbose) 469 { 470 AcpiOsPrintf (DB_FULL_OP_INFO, 471 (Info->WalkState->MethodNode ? 472 Info->WalkState->MethodNode->Name.Ascii : " "), 473 AmlOffset, (UINT32) Op->Common.AmlOpcode); 474 } 475 } 476 477 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 478 { 479 /* This is the beginning of the Definition Block */ 480 481 AcpiOsPrintf ("{\n"); 482 483 /* Emit all External() declarations here */ 484 485 AcpiDmEmitExternals (); 486 return (AE_OK); 487 } 488 } 489 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 490 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 491 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_ELSEIF)) && 492 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 493 { 494 /* 495 * This is a first-level element of a term list, 496 * indent a new line 497 */ 498 switch (Op->Common.AmlOpcode) 499 { 500 case AML_NOOP_OP: 501 /* 502 * Optionally just ignore this opcode. Some tables use 503 * NoOp opcodes for "padding" out packages that the BIOS 504 * changes dynamically. This can leave hundreds or 505 * thousands of NoOp opcodes that if disassembled, 506 * cannot be compiled because they are syntactically 507 * incorrect. 508 */ 509 if (AcpiGbl_IgnoreNoopOperator) 510 { 511 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 512 return (AE_OK); 513 } 514 515 /* Fallthrough */ 516 517 default: 518 519 AcpiDmIndent (Level); 520 break; 521 } 522 523 Info->LastLevel = Level; 524 Info->Count = 0; 525 } 526 527 /* 528 * This is an inexpensive mechanism to try and keep lines from getting 529 * too long. When the limit is hit, start a new line at the previous 530 * indent plus one. A better but more expensive mechanism would be to 531 * keep track of the current column. 532 */ 533 Info->Count++; 534 if (Info->Count /* +Info->LastLevel */ > 12) 535 { 536 Info->Count = 0; 537 AcpiOsPrintf ("\n"); 538 AcpiDmIndent (Info->LastLevel + 1); 539 } 540 541 /* If ASL+ is enabled, check for a C-style operator */ 542 543 if (AcpiDmCheckForSymbolicOpcode (Op, Info)) 544 { 545 return (AE_OK); 546 } 547 548 /* Print the opcode name */ 549 550 AcpiDmDisassembleOneOp (NULL, Info, Op); 551 552 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) || 553 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP)) 554 { 555 return (AE_OK); 556 } 557 558 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 559 (Op->Common.AmlOpcode == AML_RETURN_OP)) 560 { 561 Info->Level--; 562 } 563 564 /* Start the opcode argument list if necessary */ 565 566 if ((OpInfo->Flags & AML_HAS_ARGS) || 567 (Op->Common.AmlOpcode == AML_EVENT_OP)) 568 { 569 /* This opcode has an argument list */ 570 571 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 572 { 573 AcpiOsPrintf (" ("); 574 } 575 576 /* If this is a named opcode, print the associated name value */ 577 578 if (OpInfo->Flags & AML_NAMED) 579 { 580 switch (Op->Common.AmlOpcode) 581 { 582 case AML_ALIAS_OP: 583 584 NextOp = AcpiPsGetDepthNext (NULL, Op); 585 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 586 AcpiDmNamestring (NextOp->Common.Value.Name); 587 AcpiOsPrintf (", "); 588 589 /*lint -fallthrough */ 590 591 default: 592 593 Name = AcpiPsGetName (Op); 594 if (Op->Named.Path) 595 { 596 AcpiDmNamestring ((char *) Op->Named.Path); 597 } 598 else 599 { 600 AcpiDmDumpName (Name); 601 } 602 603 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 604 { 605 if (AcpiGbl_DmOpt_Verbose) 606 { 607 (void) AcpiPsDisplayObjectPathname (NULL, Op); 608 } 609 } 610 break; 611 } 612 613 switch (Op->Common.AmlOpcode) 614 { 615 case AML_METHOD_OP: 616 617 AcpiDmMethodFlags (Op); 618 AcpiOsPrintf (")"); 619 620 /* Emit description comment for Method() with a predefined ACPI name */ 621 622 AcpiDmPredefinedDescription (Op); 623 break; 624 625 case AML_NAME_OP: 626 627 /* Check for _HID and related EISAID() */ 628 629 AcpiDmCheckForHardwareId (Op); 630 AcpiOsPrintf (", "); 631 break; 632 633 case AML_REGION_OP: 634 635 AcpiDmRegionFlags (Op); 636 break; 637 638 case AML_POWER_RES_OP: 639 640 /* Mark the next two Ops as part of the parameter list */ 641 642 AcpiOsPrintf (", "); 643 NextOp = AcpiPsGetDepthNext (NULL, Op); 644 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 645 646 NextOp = NextOp->Common.Next; 647 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 648 return (AE_OK); 649 650 case AML_PROCESSOR_OP: 651 652 /* Mark the next three Ops as part of the parameter list */ 653 654 AcpiOsPrintf (", "); 655 NextOp = AcpiPsGetDepthNext (NULL, Op); 656 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 657 658 NextOp = NextOp->Common.Next; 659 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 660 661 NextOp = NextOp->Common.Next; 662 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 663 return (AE_OK); 664 665 case AML_MUTEX_OP: 666 case AML_DATA_REGION_OP: 667 668 AcpiOsPrintf (", "); 669 return (AE_OK); 670 671 case AML_EVENT_OP: 672 case AML_ALIAS_OP: 673 674 return (AE_OK); 675 676 case AML_SCOPE_OP: 677 case AML_DEVICE_OP: 678 case AML_THERMAL_ZONE_OP: 679 680 AcpiOsPrintf (")"); 681 break; 682 683 default: 684 685 AcpiOsPrintf ("*** Unhandled named opcode %X\n", 686 Op->Common.AmlOpcode); 687 break; 688 } 689 } 690 691 else switch (Op->Common.AmlOpcode) 692 { 693 case AML_FIELD_OP: 694 case AML_BANK_FIELD_OP: 695 case AML_INDEX_FIELD_OP: 696 697 Info->BitOffset = 0; 698 699 /* Name of the parent OperationRegion */ 700 701 NextOp = AcpiPsGetDepthNext (NULL, Op); 702 AcpiDmNamestring (NextOp->Common.Value.Name); 703 AcpiOsPrintf (", "); 704 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 705 706 switch (Op->Common.AmlOpcode) 707 { 708 case AML_BANK_FIELD_OP: 709 710 /* Namestring - Bank Name */ 711 712 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 713 AcpiDmNamestring (NextOp->Common.Value.Name); 714 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 715 AcpiOsPrintf (", "); 716 717 /* 718 * Bank Value. This is a TermArg in the middle of the parameter 719 * list, must handle it here. 720 * 721 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMLIST 722 * eliminates newline in the output. 723 */ 724 NextOp = NextOp->Common.Next; 725 726 Info->Flags = ACPI_PARSEOP_PARAMLIST; 727 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, 728 AcpiDmAscendingOp, Info); 729 Info->Flags = 0; 730 Info->Level = Level; 731 732 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 733 AcpiOsPrintf (", "); 734 break; 735 736 case AML_INDEX_FIELD_OP: 737 738 /* Namestring - Data Name */ 739 740 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 741 AcpiDmNamestring (NextOp->Common.Value.Name); 742 AcpiOsPrintf (", "); 743 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 744 break; 745 746 default: 747 748 break; 749 } 750 751 AcpiDmFieldFlags (NextOp); 752 break; 753 754 case AML_BUFFER_OP: 755 756 /* The next op is the size parameter */ 757 758 NextOp = AcpiPsGetDepthNext (NULL, Op); 759 if (!NextOp) 760 { 761 /* Single-step support */ 762 763 return (AE_OK); 764 } 765 766 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 767 { 768 /* 769 * We have a resource list. Don't need to output 770 * the buffer size Op. Open up a new block 771 */ 772 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 773 NextOp = NextOp->Common.Next; 774 AcpiOsPrintf (")"); 775 776 /* Emit description comment for Name() with a predefined ACPI name */ 777 778 AcpiDmPredefinedDescription (Op->Asl.Parent); 779 780 AcpiOsPrintf ("\n"); 781 AcpiDmIndent (Info->Level); 782 AcpiOsPrintf ("{\n"); 783 return (AE_OK); 784 } 785 786 /* Normal Buffer, mark size as in the parameter list */ 787 788 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 789 return (AE_OK); 790 791 case AML_VAR_PACKAGE_OP: 792 case AML_IF_OP: 793 case AML_WHILE_OP: 794 795 /* The next op is the size or predicate parameter */ 796 797 NextOp = AcpiPsGetDepthNext (NULL, Op); 798 if (NextOp) 799 { 800 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 801 } 802 return (AE_OK); 803 804 case AML_PACKAGE_OP: 805 806 /* The next op is the size parameter */ 807 808 NextOp = AcpiPsGetDepthNext (NULL, Op); 809 if (NextOp) 810 { 811 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 812 } 813 return (AE_OK); 814 815 case AML_MATCH_OP: 816 817 AcpiDmMatchOp (Op); 818 break; 819 820 default: 821 822 break; 823 } 824 825 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 826 { 827 AcpiOsPrintf ("\n"); 828 AcpiDmIndent (Level); 829 AcpiOsPrintf ("{\n"); 830 } 831 } 832 833 return (AE_OK); 834 } 835 836 837 /******************************************************************************* 838 * 839 * FUNCTION: AcpiDmAscendingOp 840 * 841 * PARAMETERS: ASL_WALK_CALLBACK 842 * 843 * RETURN: Status 844 * 845 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 846 * tree. Close out any parameter lists and complete the opcode. 847 * 848 ******************************************************************************/ 849 850 static ACPI_STATUS 851 AcpiDmAscendingOp ( 852 ACPI_PARSE_OBJECT *Op, 853 UINT32 Level, 854 void *Context) 855 { 856 ACPI_OP_WALK_INFO *Info = Context; 857 ACPI_PARSE_OBJECT *ParentOp; 858 859 860 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 861 { 862 /* Ignore this op -- it was handled elsewhere */ 863 864 return (AE_OK); 865 } 866 867 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 868 { 869 /* Indicates the end of the current descriptor block (table) */ 870 871 AcpiOsPrintf ("}\n\n"); 872 return (AE_OK); 873 } 874 875 switch (AcpiDmBlockType (Op)) 876 { 877 case BLOCK_PAREN: 878 879 /* Completed an op that has arguments, add closing paren if needed */ 880 881 AcpiDmCloseOperator (Op); 882 883 if (Op->Common.AmlOpcode == AML_NAME_OP) 884 { 885 /* Emit description comment for Name() with a predefined ACPI name */ 886 887 AcpiDmPredefinedDescription (Op); 888 } 889 else 890 { 891 /* For Create* operators, attempt to emit resource tag description */ 892 893 AcpiDmFieldPredefinedDescription (Op); 894 } 895 896 /* Decode Notify() values */ 897 898 if (Op->Common.AmlOpcode == AML_NOTIFY_OP) 899 { 900 AcpiDmNotifyDescription (Op); 901 } 902 903 AcpiDmDisplayTargetPathname (Op); 904 905 /* Could be a nested operator, check if comma required */ 906 907 if (!AcpiDmCommaIfListMember (Op)) 908 { 909 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 910 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 911 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 912 { 913 /* 914 * This is a first-level element of a term list 915 * start a new line 916 */ 917 if (!(Info->Flags & ACPI_PARSEOP_PARAMLIST)) 918 { 919 AcpiOsPrintf ("\n"); 920 } 921 } 922 } 923 break; 924 925 case BLOCK_BRACE: 926 case (BLOCK_BRACE | BLOCK_PAREN): 927 928 /* Completed an op that has a term list, add closing brace */ 929 930 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 931 { 932 AcpiOsPrintf ("}"); 933 } 934 else 935 { 936 AcpiDmIndent (Level); 937 AcpiOsPrintf ("}"); 938 } 939 940 AcpiDmCommaIfListMember (Op); 941 942 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 943 { 944 AcpiOsPrintf ("\n"); 945 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 946 { 947 if ((Op->Common.AmlOpcode == AML_IF_OP) && 948 (Op->Common.Next) && 949 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 950 { 951 break; 952 } 953 954 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 955 (!Op->Common.Next)) 956 { 957 break; 958 } 959 AcpiOsPrintf ("\n"); 960 } 961 } 962 break; 963 964 case BLOCK_NONE: 965 default: 966 967 /* Could be a nested operator, check if comma required */ 968 969 if (!AcpiDmCommaIfListMember (Op)) 970 { 971 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 972 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 973 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 974 { 975 /* 976 * This is a first-level element of a term list 977 * start a new line 978 */ 979 AcpiOsPrintf ("\n"); 980 } 981 } 982 else if (Op->Common.Parent) 983 { 984 switch (Op->Common.Parent->Common.AmlOpcode) 985 { 986 case AML_PACKAGE_OP: 987 case AML_VAR_PACKAGE_OP: 988 989 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 990 { 991 AcpiOsPrintf ("\n"); 992 } 993 break; 994 995 default: 996 997 break; 998 } 999 } 1000 break; 1001 } 1002 1003 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) 1004 { 1005 if ((Op->Common.Next) && 1006 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 1007 { 1008 return (AE_OK); 1009 } 1010 1011 /* 1012 * The parent Op is guaranteed to be valid because of the flag 1013 * ACPI_PARSEOP_PARAMLIST -- which means that this op is part of 1014 * a parameter list and thus has a valid parent. 1015 */ 1016 ParentOp = Op->Common.Parent; 1017 1018 /* 1019 * Just completed a parameter node for something like "Buffer (param)". 1020 * Close the paren and open up the term list block with a brace 1021 */ 1022 if (Op->Common.Next) 1023 { 1024 AcpiOsPrintf (")"); 1025 1026 /* 1027 * Emit a description comment for a Name() operator that is a 1028 * predefined ACPI name. Must check the grandparent. 1029 */ 1030 ParentOp = ParentOp->Common.Parent; 1031 if (ParentOp && 1032 (ParentOp->Asl.AmlOpcode == AML_NAME_OP)) 1033 { 1034 AcpiDmPredefinedDescription (ParentOp); 1035 } 1036 1037 AcpiOsPrintf ("\n"); 1038 AcpiDmIndent (Level - 1); 1039 AcpiOsPrintf ("{\n"); 1040 } 1041 else 1042 { 1043 ParentOp->Common.DisasmFlags |= ACPI_PARSEOP_EMPTY_TERMLIST; 1044 AcpiOsPrintf (") {"); 1045 } 1046 } 1047 1048 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 1049 (Op->Common.AmlOpcode == AML_RETURN_OP)) 1050 { 1051 Info->Level++; 1052 } 1053 1054 /* 1055 * For ASL+, check for and emit a C-style symbol. If valid, the 1056 * symbol string has been deferred until after the first operand 1057 */ 1058 if (AcpiGbl_CstyleDisassembly) 1059 { 1060 if (Op->Asl.OperatorSymbol) 1061 { 1062 AcpiOsPrintf ("%s", Op->Asl.OperatorSymbol); 1063 Op->Asl.OperatorSymbol = NULL; 1064 } 1065 } 1066 1067 return (AE_OK); 1068 } 1069