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