1 /******************************************************************************* 2 * 3 * Module Name: dmwalk - AML disassembly tree walk 4 * 5 ******************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 #include "accommon.h" 154 #include "acparser.h" 155 #include "amlcode.h" 156 #include "acdebug.h" 157 #include "acconvert.h" 158 159 160 #define _COMPONENT ACPI_CA_DEBUGGER 161 ACPI_MODULE_NAME ("dmwalk") 162 163 164 /* Stub for non-compiler code */ 165 166 #ifndef ACPI_ASL_COMPILER 167 void 168 AcpiDmEmitExternals ( 169 void) 170 { 171 return; 172 } 173 174 void 175 AcpiDmEmitExternal ( 176 ACPI_PARSE_OBJECT *NameOp, 177 ACPI_PARSE_OBJECT *TypeOp) 178 { 179 return; 180 } 181 #endif 182 183 /* Local prototypes */ 184 185 static ACPI_STATUS 186 AcpiDmDescendingOp ( 187 ACPI_PARSE_OBJECT *Op, 188 UINT32 Level, 189 void *Context); 190 191 static ACPI_STATUS 192 AcpiDmAscendingOp ( 193 ACPI_PARSE_OBJECT *Op, 194 UINT32 Level, 195 void *Context); 196 197 198 /******************************************************************************* 199 * 200 * FUNCTION: AcpiDmDisassemble 201 * 202 * PARAMETERS: WalkState - Current state 203 * Origin - Starting object 204 * NumOpcodes - Max number of opcodes to be displayed 205 * 206 * RETURN: None 207 * 208 * DESCRIPTION: Disassemble parser object and its children. This is the 209 * main entry point of the disassembler. 210 * 211 ******************************************************************************/ 212 213 void 214 AcpiDmDisassemble ( 215 ACPI_WALK_STATE *WalkState, 216 ACPI_PARSE_OBJECT *Origin, 217 UINT32 NumOpcodes) 218 { 219 ACPI_PARSE_OBJECT *Op = Origin; 220 ACPI_OP_WALK_INFO Info; 221 222 223 if (!Op) 224 { 225 return; 226 } 227 228 memset (&Info, 0, sizeof (ACPI_OP_WALK_INFO)); 229 Info.WalkState = WalkState; 230 Info.StartAml = Op->Common.Aml - sizeof (ACPI_TABLE_HEADER); 231 Info.AmlOffset = Op->Common.Aml - Info.StartAml; 232 233 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); 234 return; 235 } 236 237 238 /******************************************************************************* 239 * 240 * FUNCTION: AcpiDmWalkParseTree 241 * 242 * PARAMETERS: Op - Root Op object 243 * DescendingCallback - Called during tree descent 244 * AscendingCallback - Called during tree ascent 245 * Context - To be passed to the callbacks 246 * 247 * RETURN: Status from callback(s) 248 * 249 * DESCRIPTION: Walk the entire parse tree. 250 * 251 ******************************************************************************/ 252 253 void 254 AcpiDmWalkParseTree ( 255 ACPI_PARSE_OBJECT *Op, 256 ASL_WALK_CALLBACK DescendingCallback, 257 ASL_WALK_CALLBACK AscendingCallback, 258 void *Context) 259 { 260 BOOLEAN NodePreviouslyVisited; 261 ACPI_PARSE_OBJECT *StartOp = Op; 262 ACPI_STATUS Status; 263 ACPI_PARSE_OBJECT *Next; 264 ACPI_OP_WALK_INFO *Info = Context; 265 266 267 Info->Level = 0; 268 NodePreviouslyVisited = FALSE; 269 270 while (Op) 271 { 272 if (NodePreviouslyVisited) 273 { 274 if (AscendingCallback) 275 { 276 Status = AscendingCallback (Op, Info->Level, Context); 277 if (ACPI_FAILURE (Status)) 278 { 279 return; 280 } 281 } 282 } 283 else 284 { 285 /* Let the callback process the node */ 286 287 Status = DescendingCallback (Op, Info->Level, Context); 288 if (ACPI_SUCCESS (Status)) 289 { 290 /* Visit children first, once */ 291 292 Next = AcpiPsGetArg (Op, 0); 293 if (Next) 294 { 295 Info->Level++; 296 Op = Next; 297 continue; 298 } 299 } 300 else if (Status != AE_CTRL_DEPTH) 301 { 302 /* Exit immediately on any error */ 303 304 return; 305 } 306 } 307 308 /* Terminate walk at start op */ 309 310 if (Op == StartOp) 311 { 312 break; 313 } 314 315 /* No more children, re-visit this node */ 316 317 if (!NodePreviouslyVisited) 318 { 319 NodePreviouslyVisited = TRUE; 320 continue; 321 } 322 323 /* No more children, visit peers */ 324 325 if (Op->Common.Next) 326 { 327 Op = Op->Common.Next; 328 NodePreviouslyVisited = FALSE; 329 } 330 else 331 { 332 /* No peers, re-visit parent */ 333 334 if (Info->Level != 0 ) 335 { 336 Info->Level--; 337 } 338 339 Op = Op->Common.Parent; 340 NodePreviouslyVisited = TRUE; 341 } 342 } 343 344 /* If we get here, the walk completed with no errors */ 345 346 return; 347 } 348 349 350 /******************************************************************************* 351 * 352 * FUNCTION: AcpiDmBlockType 353 * 354 * PARAMETERS: Op - Object to be examined 355 * 356 * RETURN: BlockType - not a block, parens, braces, or even both. 357 * 358 * DESCRIPTION: Type of block for this op (parens or braces) 359 * 360 ******************************************************************************/ 361 362 UINT32 363 AcpiDmBlockType ( 364 ACPI_PARSE_OBJECT *Op) 365 { 366 const ACPI_OPCODE_INFO *OpInfo; 367 368 369 if (!Op) 370 { 371 return (BLOCK_NONE); 372 } 373 374 switch (Op->Common.AmlOpcode) 375 { 376 case AML_ELSE_OP: 377 378 return (BLOCK_BRACE); 379 380 case AML_METHOD_OP: 381 case AML_DEVICE_OP: 382 case AML_SCOPE_OP: 383 case AML_PROCESSOR_OP: 384 case AML_POWER_RESOURCE_OP: 385 case AML_THERMAL_ZONE_OP: 386 case AML_IF_OP: 387 case AML_WHILE_OP: 388 case AML_FIELD_OP: 389 case AML_INDEX_FIELD_OP: 390 case AML_BANK_FIELD_OP: 391 392 return (BLOCK_PAREN | BLOCK_BRACE); 393 394 case AML_BUFFER_OP: 395 396 if ((Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) || 397 (Op->Common.DisasmOpcode == ACPI_DASM_UUID) || 398 (Op->Common.DisasmOpcode == ACPI_DASM_PLD_METHOD)) 399 { 400 return (BLOCK_NONE); 401 } 402 403 /*lint -fallthrough */ 404 405 case AML_PACKAGE_OP: 406 case AML_VARIABLE_PACKAGE_OP: 407 408 return (BLOCK_PAREN | BLOCK_BRACE); 409 410 case AML_EVENT_OP: 411 412 return (BLOCK_PAREN); 413 414 case AML_INT_METHODCALL_OP: 415 416 if (Op->Common.Parent && 417 ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 418 (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))) 419 { 420 /* This is a reference to a method, not an invocation */ 421 422 return (BLOCK_NONE); 423 } 424 425 /*lint -fallthrough */ 426 427 default: 428 429 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 430 if (OpInfo->Flags & AML_HAS_ARGS) 431 { 432 return (BLOCK_PAREN); 433 } 434 435 return (BLOCK_NONE); 436 } 437 } 438 439 440 /******************************************************************************* 441 * 442 * FUNCTION: AcpiDmListType 443 * 444 * PARAMETERS: Op - Object to be examined 445 * 446 * RETURN: ListType - has commas or not. 447 * 448 * DESCRIPTION: Type of block for this op (parens or braces) 449 * 450 ******************************************************************************/ 451 452 UINT32 453 AcpiDmListType ( 454 ACPI_PARSE_OBJECT *Op) 455 { 456 const ACPI_OPCODE_INFO *OpInfo; 457 458 459 if (!Op) 460 { 461 return (BLOCK_NONE); 462 } 463 464 switch (Op->Common.AmlOpcode) 465 { 466 467 case AML_ELSE_OP: 468 case AML_METHOD_OP: 469 case AML_DEVICE_OP: 470 case AML_SCOPE_OP: 471 case AML_POWER_RESOURCE_OP: 472 case AML_PROCESSOR_OP: 473 case AML_THERMAL_ZONE_OP: 474 case AML_IF_OP: 475 case AML_WHILE_OP: 476 case AML_FIELD_OP: 477 case AML_INDEX_FIELD_OP: 478 case AML_BANK_FIELD_OP: 479 480 return (BLOCK_NONE); 481 482 case AML_BUFFER_OP: 483 case AML_PACKAGE_OP: 484 case AML_VARIABLE_PACKAGE_OP: 485 486 return (BLOCK_COMMA_LIST); 487 488 default: 489 490 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 491 if (OpInfo->Flags & AML_HAS_ARGS) 492 { 493 return (BLOCK_COMMA_LIST); 494 } 495 496 return (BLOCK_NONE); 497 } 498 } 499 500 501 /******************************************************************************* 502 * 503 * FUNCTION: AcpiDmDescendingOp 504 * 505 * PARAMETERS: ASL_WALK_CALLBACK 506 * 507 * RETURN: Status 508 * 509 * DESCRIPTION: First visitation of a parse object during tree descent. 510 * Decode opcode name and begin parameter list(s), if any. 511 * 512 ******************************************************************************/ 513 514 static ACPI_STATUS 515 AcpiDmDescendingOp ( 516 ACPI_PARSE_OBJECT *Op, 517 UINT32 Level, 518 void *Context) 519 { 520 ACPI_OP_WALK_INFO *Info = Context; 521 const ACPI_OPCODE_INFO *OpInfo; 522 UINT32 Name; 523 ACPI_PARSE_OBJECT *NextOp; 524 ACPI_PARSE_OBJECT *NextOp2; 525 UINT32 AmlOffset; 526 527 528 /* Determine which file this parse node is contained in. */ 529 530 if (AcpiGbl_CaptureComments) 531 { 532 ASL_CV_LABEL_FILENODE (Op); 533 534 if (Level != 0 && ASL_CV_FILE_HAS_SWITCHED (Op)) 535 { 536 ASL_CV_SWITCH_FILES (Level, Op); 537 } 538 539 /* If this parse node has regular comments, print them here. */ 540 541 ASL_CV_PRINT_ONE_COMMENT (Op, AML_COMMENT_STANDARD, NULL, Level); 542 } 543 544 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 545 546 /* Listing support to dump the AML code after the ASL statement */ 547 548 if (AcpiGbl_DmOpt_Listing) 549 { 550 /* We only care about these classes of objects */ 551 552 if ((OpInfo->Class == AML_CLASS_NAMED_OBJECT) || 553 (OpInfo->Class == AML_CLASS_CONTROL) || 554 (OpInfo->Class == AML_CLASS_CREATE) || 555 ((OpInfo->Class == AML_CLASS_EXECUTE) && (!Op->Common.Next))) 556 { 557 if (AcpiGbl_DmOpt_Listing && Info->PreviousAml) 558 { 559 /* Dump the AML byte code for the previous Op */ 560 561 if (Op->Common.Aml > Info->PreviousAml) 562 { 563 AcpiOsPrintf ("\n"); 564 AcpiUtDumpBuffer ( 565 (Info->StartAml + Info->AmlOffset), 566 (Op->Common.Aml - Info->PreviousAml), 567 DB_BYTE_DISPLAY, Info->AmlOffset); 568 AcpiOsPrintf ("\n"); 569 } 570 571 Info->AmlOffset = (Op->Common.Aml - Info->StartAml); 572 } 573 574 Info->PreviousAml = Op->Common.Aml; 575 } 576 } 577 578 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 579 { 580 /* Ignore this op -- it was handled elsewhere */ 581 582 return (AE_CTRL_DEPTH); 583 } 584 585 if (Op->Common.DisasmOpcode == ACPI_DASM_IGNORE_SINGLE) 586 { 587 /* Ignore this op, but not it's children */ 588 589 return (AE_OK); 590 } 591 592 if (Op->Common.AmlOpcode == AML_IF_OP) 593 { 594 NextOp = AcpiPsGetDepthNext (NULL, Op); 595 if (NextOp) 596 { 597 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 598 599 /* Don't emit the actual embedded externals unless asked */ 600 601 if (!AcpiGbl_DmEmitExternalOpcodes) 602 { 603 /* 604 * A Zero predicate indicates the possibility of one or more 605 * External() opcodes within the If() block. 606 */ 607 if (NextOp->Common.AmlOpcode == AML_ZERO_OP) 608 { 609 NextOp2 = NextOp->Common.Next; 610 611 if (NextOp2 && 612 (NextOp2->Common.AmlOpcode == AML_EXTERNAL_OP)) 613 { 614 /* Ignore the If 0 block and all children */ 615 616 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 617 return (AE_CTRL_DEPTH); 618 } 619 } 620 } 621 } 622 } 623 624 /* Level 0 is at the Definition Block level */ 625 626 if (Level == 0) 627 { 628 /* In verbose mode, print the AML offset, opcode and depth count */ 629 630 if (Info->WalkState) 631 { 632 AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml, 633 Info->WalkState->ParserState.AmlStart); 634 if (AcpiGbl_DmOpt_Verbose) 635 { 636 if (AcpiGbl_CmSingleStep) 637 { 638 AcpiOsPrintf ("%5.5X/%4.4X: ", 639 AmlOffset, (UINT32) Op->Common.AmlOpcode); 640 } 641 else 642 { 643 AcpiOsPrintf ("AML Offset %5.5X, Opcode %4.4X: ", 644 AmlOffset, (UINT32) Op->Common.AmlOpcode); 645 } 646 } 647 } 648 649 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 650 { 651 /* This is the beginning of the Definition Block */ 652 653 AcpiOsPrintf ("{\n"); 654 655 /* Emit all External() declarations here */ 656 657 if (!AcpiGbl_DmEmitExternalOpcodes) 658 { 659 AcpiDmEmitExternals (); 660 } 661 662 return (AE_OK); 663 } 664 } 665 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 666 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) && 667 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_ELSEIF)) && 668 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 669 { 670 /* 671 * This is a first-level element of a term list, 672 * indent a new line 673 */ 674 switch (Op->Common.AmlOpcode) 675 { 676 case AML_NOOP_OP: 677 /* 678 * Optionally just ignore this opcode. Some tables use 679 * NoOp opcodes for "padding" out packages that the BIOS 680 * changes dynamically. This can leave hundreds or 681 * thousands of NoOp opcodes that if disassembled, 682 * cannot be compiled because they are syntactically 683 * incorrect. 684 */ 685 if (AcpiGbl_IgnoreNoopOperator) 686 { 687 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 688 return (AE_OK); 689 } 690 691 /* Fallthrough */ 692 693 default: 694 695 AcpiDmIndent (Level); 696 break; 697 } 698 699 Info->LastLevel = Level; 700 Info->Count = 0; 701 } 702 703 /* 704 * This is an inexpensive mechanism to try and keep lines from getting 705 * too long. When the limit is hit, start a new line at the previous 706 * indent plus one. A better but more expensive mechanism would be to 707 * keep track of the current column. 708 */ 709 Info->Count++; 710 if (Info->Count /* +Info->LastLevel */ > 12) 711 { 712 Info->Count = 0; 713 AcpiOsPrintf ("\n"); 714 AcpiDmIndent (Info->LastLevel + 1); 715 } 716 717 /* If ASL+ is enabled, check for a C-style operator */ 718 719 if (AcpiDmCheckForSymbolicOpcode (Op, Info)) 720 { 721 return (AE_OK); 722 } 723 724 /* Print the opcode name */ 725 726 AcpiDmDisassembleOneOp (NULL, Info, Op); 727 728 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) || 729 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP)) 730 { 731 return (AE_OK); 732 } 733 734 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 735 (Op->Common.AmlOpcode == AML_RETURN_OP)) 736 { 737 Info->Level--; 738 } 739 740 if (Op->Common.AmlOpcode == AML_EXTERNAL_OP) 741 { 742 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 743 return (AE_CTRL_DEPTH); 744 } 745 746 /* Start the opcode argument list if necessary */ 747 748 if ((OpInfo->Flags & AML_HAS_ARGS) || 749 (Op->Common.AmlOpcode == AML_EVENT_OP)) 750 { 751 /* This opcode has an argument list */ 752 753 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 754 { 755 AcpiOsPrintf (" ("); 756 if (!(AcpiDmBlockType (Op) & BLOCK_BRACE)) 757 { 758 ASL_CV_PRINT_ONE_COMMENT (Op, AMLCOMMENT_INLINE, " ", 0); 759 } 760 } 761 762 /* If this is a named opcode, print the associated name value */ 763 764 if (OpInfo->Flags & AML_NAMED) 765 { 766 switch (Op->Common.AmlOpcode) 767 { 768 case AML_ALIAS_OP: 769 770 NextOp = AcpiPsGetDepthNext (NULL, Op); 771 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 772 AcpiDmNamestring (NextOp->Common.Value.Name); 773 AcpiOsPrintf (", "); 774 775 /*lint -fallthrough */ 776 777 default: 778 779 Name = AcpiPsGetName (Op); 780 if (Op->Named.Path) 781 { 782 AcpiDmNamestring (Op->Named.Path); 783 } 784 else 785 { 786 AcpiDmDumpName (Name); 787 } 788 789 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 790 { 791 if (AcpiGbl_DmOpt_Verbose) 792 { 793 (void) AcpiPsDisplayObjectPathname (NULL, Op); 794 } 795 } 796 break; 797 } 798 799 switch (Op->Common.AmlOpcode) 800 { 801 case AML_METHOD_OP: 802 803 AcpiDmMethodFlags (Op); 804 ASL_CV_CLOSE_PAREN (Op, Level); 805 806 /* Emit description comment for Method() with a predefined ACPI name */ 807 808 AcpiDmPredefinedDescription (Op); 809 break; 810 811 case AML_NAME_OP: 812 813 /* Check for _HID and related EISAID() */ 814 815 AcpiDmCheckForHardwareId (Op); 816 AcpiOsPrintf (", "); 817 ASL_CV_PRINT_ONE_COMMENT (Op, AML_NAMECOMMENT, NULL, 0); 818 break; 819 820 case AML_REGION_OP: 821 822 AcpiDmRegionFlags (Op); 823 break; 824 825 case AML_POWER_RESOURCE_OP: 826 827 /* Mark the next two Ops as part of the parameter list */ 828 829 AcpiOsPrintf (", "); 830 NextOp = AcpiPsGetDepthNext (NULL, Op); 831 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 832 833 NextOp = NextOp->Common.Next; 834 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 835 return (AE_OK); 836 837 case AML_PROCESSOR_OP: 838 839 /* Mark the next three Ops as part of the parameter list */ 840 841 AcpiOsPrintf (", "); 842 NextOp = AcpiPsGetDepthNext (NULL, Op); 843 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 844 845 NextOp = NextOp->Common.Next; 846 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 847 848 NextOp = NextOp->Common.Next; 849 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 850 return (AE_OK); 851 852 case AML_MUTEX_OP: 853 case AML_DATA_REGION_OP: 854 855 AcpiOsPrintf (", "); 856 return (AE_OK); 857 858 case AML_EVENT_OP: 859 case AML_ALIAS_OP: 860 861 return (AE_OK); 862 863 case AML_SCOPE_OP: 864 case AML_DEVICE_OP: 865 case AML_THERMAL_ZONE_OP: 866 867 ASL_CV_CLOSE_PAREN (Op, Level); 868 break; 869 870 default: 871 872 AcpiOsPrintf ("*** Unhandled named opcode %X\n", 873 Op->Common.AmlOpcode); 874 break; 875 } 876 } 877 878 else switch (Op->Common.AmlOpcode) 879 { 880 case AML_FIELD_OP: 881 case AML_BANK_FIELD_OP: 882 case AML_INDEX_FIELD_OP: 883 884 Info->BitOffset = 0; 885 886 /* Name of the parent OperationRegion */ 887 888 NextOp = AcpiPsGetDepthNext (NULL, Op); 889 AcpiDmNamestring (NextOp->Common.Value.Name); 890 AcpiOsPrintf (", "); 891 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 892 893 switch (Op->Common.AmlOpcode) 894 { 895 case AML_BANK_FIELD_OP: 896 897 /* Namestring - Bank Name */ 898 899 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 900 AcpiDmNamestring (NextOp->Common.Value.Name); 901 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 902 AcpiOsPrintf (", "); 903 904 /* 905 * Bank Value. This is a TermArg in the middle of the parameter 906 * list, must handle it here. 907 * 908 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMETER_LIST 909 * eliminates newline in the output. 910 */ 911 NextOp = NextOp->Common.Next; 912 913 Info->Flags = ACPI_PARSEOP_PARAMETER_LIST; 914 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, 915 AcpiDmAscendingOp, Info); 916 Info->Flags = 0; 917 Info->Level = Level; 918 919 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 920 AcpiOsPrintf (", "); 921 break; 922 923 case AML_INDEX_FIELD_OP: 924 925 /* Namestring - Data Name */ 926 927 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 928 AcpiDmNamestring (NextOp->Common.Value.Name); 929 AcpiOsPrintf (", "); 930 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 931 break; 932 933 default: 934 935 break; 936 } 937 938 AcpiDmFieldFlags (NextOp); 939 break; 940 941 case AML_BUFFER_OP: 942 943 /* The next op is the size parameter */ 944 945 NextOp = AcpiPsGetDepthNext (NULL, Op); 946 if (!NextOp) 947 { 948 /* Single-step support */ 949 950 return (AE_OK); 951 } 952 953 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 954 { 955 /* 956 * We have a resource list. Don't need to output 957 * the buffer size Op. Open up a new block 958 */ 959 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 960 NextOp = NextOp->Common.Next; 961 ASL_CV_CLOSE_PAREN (Op, Level); 962 963 /* Emit description comment for Name() with a predefined ACPI name */ 964 965 AcpiDmPredefinedDescription (Op->Asl.Parent); 966 967 AcpiOsPrintf ("\n"); 968 AcpiDmIndent (Info->Level); 969 AcpiOsPrintf ("{\n"); 970 return (AE_OK); 971 } 972 973 /* Normal Buffer, mark size as in the parameter list */ 974 975 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 976 return (AE_OK); 977 978 case AML_IF_OP: 979 case AML_VARIABLE_PACKAGE_OP: 980 case AML_WHILE_OP: 981 982 /* The next op is the size or predicate parameter */ 983 984 NextOp = AcpiPsGetDepthNext (NULL, Op); 985 if (NextOp) 986 { 987 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 988 } 989 return (AE_OK); 990 991 case AML_PACKAGE_OP: 992 993 /* The next op is the size parameter */ 994 995 NextOp = AcpiPsGetDepthNext (NULL, Op); 996 if (NextOp) 997 { 998 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST; 999 } 1000 return (AE_OK); 1001 1002 case AML_MATCH_OP: 1003 1004 AcpiDmMatchOp (Op); 1005 break; 1006 1007 default: 1008 1009 break; 1010 } 1011 1012 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 1013 { 1014 AcpiOsPrintf ("\n"); 1015 AcpiDmIndent (Level); 1016 AcpiOsPrintf ("{\n"); 1017 } 1018 } 1019 1020 return (AE_OK); 1021 } 1022 1023 1024 /******************************************************************************* 1025 * 1026 * FUNCTION: AcpiDmAscendingOp 1027 * 1028 * PARAMETERS: ASL_WALK_CALLBACK 1029 * 1030 * RETURN: Status 1031 * 1032 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 1033 * tree. Close out any parameter lists and complete the opcode. 1034 * 1035 ******************************************************************************/ 1036 1037 static ACPI_STATUS 1038 AcpiDmAscendingOp ( 1039 ACPI_PARSE_OBJECT *Op, 1040 UINT32 Level, 1041 void *Context) 1042 { 1043 ACPI_OP_WALK_INFO *Info = Context; 1044 ACPI_PARSE_OBJECT *ParentOp; 1045 1046 1047 /* Point the Op's filename pointer to the proper file */ 1048 1049 if (AcpiGbl_CaptureComments) 1050 { 1051 ASL_CV_LABEL_FILENODE (Op); 1052 1053 /* Switch the output of these files if necessary */ 1054 1055 if (ASL_CV_FILE_HAS_SWITCHED (Op)) 1056 { 1057 ASL_CV_SWITCH_FILES (Level, Op); 1058 } 1059 } 1060 1061 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE || 1062 Op->Common.DisasmOpcode == ACPI_DASM_IGNORE_SINGLE) 1063 { 1064 /* Ignore this op -- it was handled elsewhere */ 1065 1066 return (AE_OK); 1067 } 1068 1069 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 1070 { 1071 /* Indicates the end of the current descriptor block (table) */ 1072 1073 ASL_CV_CLOSE_BRACE (Op, Level); 1074 1075 /* Print any comments that are at the end of the file here */ 1076 1077 if (AcpiGbl_CaptureComments && AcpiGbl_LastListHead) 1078 { 1079 AcpiOsPrintf ("\n"); 1080 ASL_CV_PRINT_ONE_COMMENT_LIST (AcpiGbl_LastListHead, 0); 1081 } 1082 AcpiOsPrintf ("\n\n"); 1083 1084 return (AE_OK); 1085 } 1086 1087 switch (AcpiDmBlockType (Op)) 1088 { 1089 case BLOCK_PAREN: 1090 1091 /* Completed an op that has arguments, add closing paren if needed */ 1092 1093 AcpiDmCloseOperator (Op); 1094 1095 if (Op->Common.AmlOpcode == AML_NAME_OP) 1096 { 1097 /* Emit description comment for Name() with a predefined ACPI name */ 1098 1099 AcpiDmPredefinedDescription (Op); 1100 } 1101 else 1102 { 1103 /* For Create* operators, attempt to emit resource tag description */ 1104 1105 AcpiDmFieldPredefinedDescription (Op); 1106 } 1107 1108 /* Decode Notify() values */ 1109 1110 if (Op->Common.AmlOpcode == AML_NOTIFY_OP) 1111 { 1112 AcpiDmNotifyDescription (Op); 1113 } 1114 1115 AcpiDmDisplayTargetPathname (Op); 1116 1117 /* Could be a nested operator, check if comma required */ 1118 1119 if (!AcpiDmCommaIfListMember (Op)) 1120 { 1121 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 1122 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) && 1123 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 1124 { 1125 /* 1126 * This is a first-level element of a term list 1127 * start a new line 1128 */ 1129 if (!(Info->Flags & ACPI_PARSEOP_PARAMETER_LIST)) 1130 { 1131 AcpiOsPrintf ("\n"); 1132 } 1133 } 1134 } 1135 break; 1136 1137 case BLOCK_BRACE: 1138 case (BLOCK_BRACE | BLOCK_PAREN): 1139 1140 /* Completed an op that has a term list, add closing brace */ 1141 1142 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 1143 { 1144 ASL_CV_CLOSE_BRACE (Op, Level); 1145 } 1146 else 1147 { 1148 AcpiDmIndent (Level); 1149 ASL_CV_CLOSE_BRACE (Op, Level); 1150 } 1151 1152 AcpiDmCommaIfListMember (Op); 1153 1154 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 1155 { 1156 AcpiOsPrintf ("\n"); 1157 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 1158 { 1159 if ((Op->Common.AmlOpcode == AML_IF_OP) && 1160 (Op->Common.Next) && 1161 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 1162 { 1163 break; 1164 } 1165 1166 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 1167 (!Op->Common.Next)) 1168 { 1169 break; 1170 } 1171 AcpiOsPrintf ("\n"); 1172 } 1173 } 1174 break; 1175 1176 case BLOCK_NONE: 1177 default: 1178 1179 /* Could be a nested operator, check if comma required */ 1180 1181 if (!AcpiDmCommaIfListMember (Op)) 1182 { 1183 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 1184 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) && 1185 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 1186 { 1187 /* 1188 * This is a first-level element of a term list 1189 * start a new line 1190 */ 1191 AcpiOsPrintf ("\n"); 1192 } 1193 } 1194 else if (Op->Common.Parent) 1195 { 1196 switch (Op->Common.Parent->Common.AmlOpcode) 1197 { 1198 case AML_PACKAGE_OP: 1199 case AML_VARIABLE_PACKAGE_OP: 1200 1201 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) 1202 { 1203 AcpiOsPrintf ("\n"); 1204 } 1205 break; 1206 1207 default: 1208 1209 break; 1210 } 1211 } 1212 break; 1213 } 1214 1215 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST) 1216 { 1217 if ((Op->Common.Next) && 1218 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) 1219 { 1220 return (AE_OK); 1221 } 1222 1223 /* 1224 * The parent Op is guaranteed to be valid because of the flag 1225 * ACPI_PARSEOP_PARAMETER_LIST -- which means that this op is part of 1226 * a parameter list and thus has a valid parent. 1227 */ 1228 ParentOp = Op->Common.Parent; 1229 1230 /* 1231 * Just completed a parameter node for something like "Buffer (param)". 1232 * Close the paren and open up the term list block with a brace. 1233 * 1234 * Switch predicates don't have a Next node but require a closing paren 1235 * and opening brace. 1236 */ 1237 if (Op->Common.Next || Op->Common.DisasmOpcode == ACPI_DASM_SWITCH_PREDICATE) 1238 { 1239 ASL_CV_CLOSE_PAREN (Op, Level); 1240 1241 /* 1242 * Emit a description comment for a Name() operator that is a 1243 * predefined ACPI name. Must check the grandparent. 1244 */ 1245 ParentOp = ParentOp->Common.Parent; 1246 if (ParentOp && 1247 (ParentOp->Asl.AmlOpcode == AML_NAME_OP)) 1248 { 1249 AcpiDmPredefinedDescription (ParentOp); 1250 } 1251 1252 /* Correct the indentation level for Switch and Case predicates */ 1253 1254 if (Op->Common.DisasmOpcode == ACPI_DASM_SWITCH_PREDICATE) 1255 { 1256 --Level; 1257 } 1258 1259 AcpiOsPrintf ("\n"); 1260 AcpiDmIndent (Level - 1); 1261 AcpiOsPrintf ("{\n"); 1262 } 1263 else 1264 { 1265 ParentOp->Common.DisasmFlags |= ACPI_PARSEOP_EMPTY_TERMLIST; 1266 ASL_CV_CLOSE_PAREN (Op, Level); 1267 AcpiOsPrintf ("{"); 1268 } 1269 } 1270 1271 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 1272 (Op->Common.AmlOpcode == AML_RETURN_OP)) 1273 { 1274 Info->Level++; 1275 } 1276 1277 /* 1278 * For ASL+, check for and emit a C-style symbol. If valid, the 1279 * symbol string has been deferred until after the first operand 1280 */ 1281 if (AcpiGbl_CstyleDisassembly) 1282 { 1283 if (Op->Asl.OperatorSymbol) 1284 { 1285 AcpiOsPrintf ("%s", Op->Asl.OperatorSymbol); 1286 Op->Asl.OperatorSymbol = NULL; 1287 } 1288 } 1289 1290 return (AE_OK); 1291 } 1292