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 <contrib/dev/acpica/include/acpi.h> 45 #include <contrib/dev/acpica/include/accommon.h> 46 #include <contrib/dev/acpica/include/acparser.h> 47 #include <contrib/dev/acpica/include/amlcode.h> 48 #include <contrib/dev/acpica/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 ACPI_PARSE_OBJECT *NextOp2; 414 UINT32 AmlOffset; 415 416 417 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 418 419 /* Listing support to dump the AML code after the ASL statement */ 420 421 if (AcpiGbl_DmOpt_Listing) 422 { 423 /* We only care about these classes of objects */ 424 425 if ((OpInfo->Class == AML_CLASS_NAMED_OBJECT) || 426 (OpInfo->Class == AML_CLASS_CONTROL) || 427 (OpInfo->Class == AML_CLASS_CREATE) || 428 ((OpInfo->Class == AML_CLASS_EXECUTE) && (!Op->Common.Next))) 429 { 430 if (AcpiGbl_DmOpt_Listing && Info->PreviousAml) 431 { 432 /* Dump the AML byte code for the previous Op */ 433 434 if (Op->Common.Aml > Info->PreviousAml) 435 { 436 AcpiOsPrintf ("\n"); 437 AcpiUtDumpBuffer ( 438 (Info->StartAml + Info->AmlOffset), 439 (Op->Common.Aml - Info->PreviousAml), 440 DB_BYTE_DISPLAY, 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 if (Op->Common.AmlOpcode == AML_IF_OP) 459 { 460 NextOp = AcpiPsGetDepthNext (NULL, Op); 461 if (NextOp) 462 { 463 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 464 465 /* 466 * A Zero predicate indicates the possibility of one or more 467 * External() opcodes within the If() block. 468 */ 469 if (NextOp->Common.AmlOpcode == AML_ZERO_OP) 470 { 471 NextOp2 = NextOp->Common.Next; 472 473 if (NextOp2 && 474 (NextOp2->Common.AmlOpcode == AML_EXTERNAL_OP)) 475 { 476 /* Ignore the If 0 block and all children */ 477 478 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 479 return (AE_CTRL_DEPTH); 480 } 481 } 482 } 483 } 484 485 /* Level 0 is at the Definition Block level */ 486 487 if (Level == 0) 488 { 489 /* In verbose mode, print the AML offset, opcode and depth count */ 490 491 if (Info->WalkState) 492 { 493 AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml, 494 Info->WalkState->ParserState.AmlStart); 495 if (AcpiGbl_DmOpt_Verbose) 496 { 497 AcpiOsPrintf (DB_FULL_OP_INFO, 498 (Info->WalkState->MethodNode ? 499 Info->WalkState->MethodNode->Name.Ascii : " "), 500 AmlOffset, (UINT32) Op->Common.AmlOpcode); 501 } 502 } 503 504 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 505 { 506 /* This is the beginning of the Definition Block */ 507 508 AcpiOsPrintf ("{\n"); 509 510 /* Emit all External() declarations here */ 511 512 AcpiDmEmitExternals (); 513 return (AE_OK); 514 } 515 } 516 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 517 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) && 518 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_ELSEIF)) && 519 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 520 { 521 /* 522 * This is a first-level element of a term list, 523 * indent a new line 524 */ 525 switch (Op->Common.AmlOpcode) 526 { 527 case AML_NOOP_OP: 528 /* 529 * Optionally just ignore this opcode. Some tables use 530 * NoOp opcodes for "padding" out packages that the BIOS 531 * changes dynamically. This can leave hundreds or 532 * thousands of NoOp opcodes that if disassembled, 533 * cannot be compiled because they are syntactically 534 * incorrect. 535 */ 536 if (AcpiGbl_IgnoreNoopOperator) 537 { 538 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 539 return (AE_OK); 540 } 541 542 /* Fallthrough */ 543 544 default: 545 546 AcpiDmIndent (Level); 547 break; 548 } 549 550 Info->LastLevel = Level; 551 Info->Count = 0; 552 } 553 554 /* 555 * This is an inexpensive mechanism to try and keep lines from getting 556 * too long. When the limit is hit, start a new line at the previous 557 * indent plus one. A better but more expensive mechanism would be to 558 * keep track of the current column. 559 */ 560 Info->Count++; 561 if (Info->Count /* +Info->LastLevel */ > 12) 562 { 563 Info->Count = 0; 564 AcpiOsPrintf ("\n"); 565 AcpiDmIndent (Info->LastLevel + 1); 566 } 567 568 /* If ASL+ is enabled, check for a C-style operator */ 569 570 if (AcpiDmCheckForSymbolicOpcode (Op, Info)) 571 { 572 return (AE_OK); 573 } 574 575 /* Print the opcode name */ 576 577 AcpiDmDisassembleOneOp (NULL, Info, Op); 578 579 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) || 580 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP)) 581 { 582 return (AE_OK); 583 } 584 585 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 586 (Op->Common.AmlOpcode == AML_RETURN_OP)) 587 { 588 Info->Level--; 589 } 590 591 /* Start the opcode argument list if necessary */ 592 593 if ((OpInfo->Flags & AML_HAS_ARGS) || 594 (Op->Common.AmlOpcode == AML_EVENT_OP)) 595 { 596 /* This opcode has an argument list */ 597 598 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 599 { 600 AcpiOsPrintf (" ("); 601 } 602 603 /* If this is a named opcode, print the associated name value */ 604 605 if (OpInfo->Flags & AML_NAMED) 606 { 607 switch (Op->Common.AmlOpcode) 608 { 609 case AML_ALIAS_OP: 610 611 NextOp = AcpiPsGetDepthNext (NULL, Op); 612 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 613 AcpiDmNamestring (NextOp->Common.Value.Name); 614 AcpiOsPrintf (", "); 615 616 /*lint -fallthrough */ 617 618 default: 619 620 Name = AcpiPsGetName (Op); 621 if (Op->Named.Path) 622 { 623 AcpiDmNamestring ((char *) Op->Named.Path); 624 } 625 else 626 { 627 AcpiDmDumpName (Name); 628 } 629 630 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 631 { 632 if (AcpiGbl_DmOpt_Verbose) 633 { 634 (void) AcpiPsDisplayObjectPathname (NULL, Op); 635 } 636 } 637 break; 638 } 639 640 switch (Op->Common.AmlOpcode) 641 { 642 case AML_METHOD_OP: 643 644 AcpiDmMethodFlags (Op); 645 AcpiOsPrintf (")"); 646 647 /* Emit description comment for Method() with a predefined ACPI name */ 648 649 AcpiDmPredefinedDescription (Op); 650 break; 651 652 case AML_NAME_OP: 653 654 /* Check for _HID and related EISAID() */ 655 656 AcpiDmCheckForHardwareId (Op); 657 AcpiOsPrintf (", "); 658 break; 659 660 case AML_REGION_OP: 661 662 AcpiDmRegionFlags (Op); 663 break; 664 665 case AML_POWER_RES_OP: 666 667 /* Mark the next two Ops as part of the parameter list */ 668 669 AcpiOsPrintf (", "); 670 NextOp = AcpiPsGetDepthNext (NULL, Op); 671 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 672 673 NextOp = NextOp->Common.Next; 674 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 675 return (AE_OK); 676 677 case AML_PROCESSOR_OP: 678 679 /* Mark the next three Ops as part of the parameter list */ 680 681 AcpiOsPrintf (", "); 682 NextOp = AcpiPsGetDepthNext (NULL, Op); 683 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 684 685 NextOp = NextOp->Common.Next; 686 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 687 688 NextOp = NextOp->Common.Next; 689 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 690 return (AE_OK); 691 692 case AML_MUTEX_OP: 693 case AML_DATA_REGION_OP: 694 695 AcpiOsPrintf (", "); 696 return (AE_OK); 697 698 case AML_EVENT_OP: 699 case AML_ALIAS_OP: 700 701 return (AE_OK); 702 703 case AML_SCOPE_OP: 704 case AML_DEVICE_OP: 705 case AML_THERMAL_ZONE_OP: 706 707 AcpiOsPrintf (")"); 708 break; 709 710 default: 711 712 AcpiOsPrintf ("*** Unhandled named opcode %X\n", 713 Op->Common.AmlOpcode); 714 break; 715 } 716 } 717 718 else switch (Op->Common.AmlOpcode) 719 { 720 case AML_FIELD_OP: 721 case AML_BANK_FIELD_OP: 722 case AML_INDEX_FIELD_OP: 723 724 Info->BitOffset = 0; 725 726 /* Name of the parent OperationRegion */ 727 728 NextOp = AcpiPsGetDepthNext (NULL, Op); 729 AcpiDmNamestring (NextOp->Common.Value.Name); 730 AcpiOsPrintf (", "); 731 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 732 733 switch (Op->Common.AmlOpcode) 734 { 735 case AML_BANK_FIELD_OP: 736 737 /* Namestring - Bank Name */ 738 739 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 740 AcpiDmNamestring (NextOp->Common.Value.Name); 741 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 742 AcpiOsPrintf (", "); 743 744 /* 745 * Bank Value. This is a TermArg in the middle of the parameter 746 * list, must handle it here. 747 * 748 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMETER_LIST 749 * eliminates newline in the output. 750 */ 751 NextOp = NextOp->Common.Next; 752 753 Info->Flags = ACPI_PARSEOP_PARAMETER_LIST; 754 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, 755 AcpiDmAscendingOp, Info); 756 Info->Flags = 0; 757 Info->Level = Level; 758 759 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 760 AcpiOsPrintf (", "); 761 break; 762 763 case AML_INDEX_FIELD_OP: 764 765 /* Namestring - Data Name */ 766 767 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 768 AcpiDmNamestring (NextOp->Common.Value.Name); 769 AcpiOsPrintf (", "); 770 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 771 break; 772 773 default: 774 775 break; 776 } 777 778 AcpiDmFieldFlags (NextOp); 779 break; 780 781 case AML_BUFFER_OP: 782 783 /* The next op is the size parameter */ 784 785 NextOp = AcpiPsGetDepthNext (NULL, Op); 786 if (!NextOp) 787 { 788 /* Single-step support */ 789 790 return (AE_OK); 791 } 792 793 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 794 { 795 /* 796 * We have a resource list. Don't need to output 797 * the buffer size Op. Open up a new block 798 */ 799 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 800 NextOp = NextOp->Common.Next; 801 AcpiOsPrintf (")"); 802 803 /* Emit description comment for Name() with a predefined ACPI name */ 804 805 AcpiDmPredefinedDescription (Op->Asl.Parent); 806 807 AcpiOsPrintf ("\n"); 808 AcpiDmIndent (Info->Level); 809 AcpiOsPrintf ("{\n"); 810 return (AE_OK); 811 } 812 813 /* Normal Buffer, mark size as in the parameter list */ 814 815 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 816 return (AE_OK); 817 818 case AML_IF_OP: 819 case AML_VAR_PACKAGE_OP: 820 case AML_WHILE_OP: 821 822 /* The next op is the size or predicate parameter */ 823 824 NextOp = AcpiPsGetDepthNext (NULL, Op); 825 if (NextOp) 826 { 827 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 828 } 829 return (AE_OK); 830 831 case AML_PACKAGE_OP: 832 833 /* The next op is the size parameter */ 834 835 NextOp = AcpiPsGetDepthNext (NULL, Op); 836 if (NextOp) 837 { 838 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 839 } 840 return (AE_OK); 841 842 case AML_MATCH_OP: 843 844 AcpiDmMatchOp (Op); 845 break; 846 847 default: 848 849 break; 850 } 851 852 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 853 { 854 AcpiOsPrintf ("\n"); 855 AcpiDmIndent (Level); 856 AcpiOsPrintf ("{\n"); 857 } 858 } 859 860 return (AE_OK); 861 } 862 863 864 /******************************************************************************* 865 * 866 * FUNCTION: AcpiDmAscendingOp 867 * 868 * PARAMETERS: ASL_WALK_CALLBACK 869 * 870 * RETURN: Status 871 * 872 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 873 * tree. Close out any parameter lists and complete the opcode. 874 * 875 ******************************************************************************/ 876 877 static ACPI_STATUS 878 AcpiDmAscendingOp ( 879 ACPI_PARSE_OBJECT *Op, 880 UINT32 Level, 881 void *Context) 882 { 883 ACPI_OP_WALK_INFO *Info = Context; 884 ACPI_PARSE_OBJECT *ParentOp; 885 886 887 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 888 { 889 /* Ignore this op -- it was handled elsewhere */ 890 891 return (AE_OK); 892 } 893 894 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 895 { 896 /* Indicates the end of the current descriptor block (table) */ 897 898 AcpiOsPrintf ("}\n\n"); 899 return (AE_OK); 900 } 901 902 switch (AcpiDmBlockType (Op)) 903 { 904 case BLOCK_PAREN: 905 906 /* Completed an op that has arguments, add closing paren if needed */ 907 908 AcpiDmCloseOperator (Op); 909 910 if (Op->Common.AmlOpcode == AML_NAME_OP) 911 { 912 /* Emit description comment for Name() with a predefined ACPI name */ 913 914 AcpiDmPredefinedDescription (Op); 915 } 916 else 917 { 918 /* For Create* operators, attempt to emit resource tag description */ 919 920 AcpiDmFieldPredefinedDescription (Op); 921 } 922 923 /* Decode Notify() values */ 924 925 if (Op->Common.AmlOpcode == AML_NOTIFY_OP) 926 { 927 AcpiDmNotifyDescription (Op); 928 } 929 930 AcpiDmDisplayTargetPathname (Op); 931 932 /* Could be a nested operator, check if comma required */ 933 934 if (!AcpiDmCommaIfListMember (Op)) 935 { 936 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 937 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) && 938 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 939 { 940 /* 941 * This is a first-level element of a term list 942 * start a new line 943 */ 944 if (!(Info->Flags & ACPI_PARSEOP_PARAMETER_LIST)) 945 { 946 AcpiOsPrintf ("\n"); 947 } 948 } 949 } 950 break; 951 952 case BLOCK_BRACE: 953 case (BLOCK_BRACE | BLOCK_PAREN): 954 955 /* Completed an op that has a term list, add closing brace */ 956 957 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 958 { 959 AcpiOsPrintf ("}"); 960 } 961 else 962 { 963 AcpiDmIndent (Level); 964 AcpiOsPrintf ("}"); 965 } 966 967 AcpiDmCommaIfListMember (Op); 968 969 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 970 { 971 AcpiOsPrintf ("\n"); 972 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 973 { 974 if ((Op->Common.AmlOpcode == AML_IF_OP) && 975 (Op->Common.Next) && 976 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 977 { 978 break; 979 } 980 981 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 982 (!Op->Common.Next)) 983 { 984 break; 985 } 986 AcpiOsPrintf ("\n"); 987 } 988 } 989 break; 990 991 case BLOCK_NONE: 992 default: 993 994 /* Could be a nested operator, check if comma required */ 995 996 if (!AcpiDmCommaIfListMember (Op)) 997 { 998 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 999 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) && 1000 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 1001 { 1002 /* 1003 * This is a first-level element of a term list 1004 * start a new line 1005 */ 1006 AcpiOsPrintf ("\n"); 1007 } 1008 } 1009 else if (Op->Common.Parent) 1010 { 1011 switch (Op->Common.Parent->Common.AmlOpcode) 1012 { 1013 case AML_PACKAGE_OP: 1014 case AML_VAR_PACKAGE_OP: 1015 1016 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) 1017 { 1018 AcpiOsPrintf ("\n"); 1019 } 1020 break; 1021 1022 default: 1023 1024 break; 1025 } 1026 } 1027 break; 1028 } 1029 1030 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST) 1031 { 1032 if ((Op->Common.Next) && 1033 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) 1034 { 1035 return (AE_OK); 1036 } 1037 1038 /* 1039 * The parent Op is guaranteed to be valid because of the flag 1040 * ACPI_PARSEOP_PARAMETER_LIST -- which means that this op is part of 1041 * a parameter list and thus has a valid parent. 1042 */ 1043 ParentOp = Op->Common.Parent; 1044 1045 /* 1046 * Just completed a parameter node for something like "Buffer (param)". 1047 * Close the paren and open up the term list block with a brace 1048 */ 1049 if (Op->Common.Next) 1050 { 1051 AcpiOsPrintf (")"); 1052 1053 /* 1054 * Emit a description comment for a Name() operator that is a 1055 * predefined ACPI name. Must check the grandparent. 1056 */ 1057 ParentOp = ParentOp->Common.Parent; 1058 if (ParentOp && 1059 (ParentOp->Asl.AmlOpcode == AML_NAME_OP)) 1060 { 1061 AcpiDmPredefinedDescription (ParentOp); 1062 } 1063 1064 AcpiOsPrintf ("\n"); 1065 AcpiDmIndent (Level - 1); 1066 AcpiOsPrintf ("{\n"); 1067 } 1068 else 1069 { 1070 ParentOp->Common.DisasmFlags |= ACPI_PARSEOP_EMPTY_TERMLIST; 1071 AcpiOsPrintf (") {"); 1072 } 1073 } 1074 1075 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 1076 (Op->Common.AmlOpcode == AML_RETURN_OP)) 1077 { 1078 Info->Level++; 1079 } 1080 1081 /* 1082 * For ASL+, check for and emit a C-style symbol. If valid, the 1083 * symbol string has been deferred until after the first operand 1084 */ 1085 if (AcpiGbl_CstyleDisassembly) 1086 { 1087 if (Op->Asl.OperatorSymbol) 1088 { 1089 AcpiOsPrintf ("%s", Op->Asl.OperatorSymbol); 1090 Op->Asl.OperatorSymbol = NULL; 1091 } 1092 } 1093 1094 return (AE_OK); 1095 } 1096