1 /*******************************************************************************
2 *
3 * Module Name: dmwalk - AML disassembly tree walk
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2022, 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 MERCHANTABILITY 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 #include "acconvert.h"
50
51
52 #define _COMPONENT ACPI_CA_DEBUGGER
53 ACPI_MODULE_NAME ("dmwalk")
54
55
56 /* Stub for non-compiler code */
57
58 #ifndef ACPI_ASL_COMPILER
59 void
AcpiDmEmitExternals(void)60 AcpiDmEmitExternals (
61 void)
62 {
63 return;
64 }
65
66 void
AcpiDmEmitExternal(ACPI_PARSE_OBJECT * NameOp,ACPI_PARSE_OBJECT * TypeOp)67 AcpiDmEmitExternal (
68 ACPI_PARSE_OBJECT *NameOp,
69 ACPI_PARSE_OBJECT *TypeOp)
70 {
71 return;
72 }
73 #endif
74
75 /* Local prototypes */
76
77 static ACPI_STATUS
78 AcpiDmDescendingOp (
79 ACPI_PARSE_OBJECT *Op,
80 UINT32 Level,
81 void *Context);
82
83 static ACPI_STATUS
84 AcpiDmAscendingOp (
85 ACPI_PARSE_OBJECT *Op,
86 UINT32 Level,
87 void *Context);
88
89
90 /*******************************************************************************
91 *
92 * FUNCTION: AcpiDmDisassemble
93 *
94 * PARAMETERS: WalkState - Current state
95 * Origin - Starting object
96 * NumOpcodes - Max number of opcodes to be displayed
97 *
98 * RETURN: None
99 *
100 * DESCRIPTION: Disassemble parser object and its children. This is the
101 * main entry point of the disassembler.
102 *
103 ******************************************************************************/
104
105 void
AcpiDmDisassemble(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Origin,UINT32 NumOpcodes)106 AcpiDmDisassemble (
107 ACPI_WALK_STATE *WalkState,
108 ACPI_PARSE_OBJECT *Origin,
109 UINT32 NumOpcodes)
110 {
111 ACPI_PARSE_OBJECT *Op = Origin;
112 ACPI_OP_WALK_INFO Info;
113
114
115 if (!Op)
116 {
117 return;
118 }
119
120 memset (&Info, 0, sizeof (ACPI_OP_WALK_INFO));
121 Info.WalkState = WalkState;
122 Info.StartAml = Op->Common.Aml - sizeof (ACPI_TABLE_HEADER);
123 Info.AmlOffset = Op->Common.Aml - Info.StartAml;
124
125 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info);
126 return;
127 }
128
129
130 /*******************************************************************************
131 *
132 * FUNCTION: AcpiDmWalkParseTree
133 *
134 * PARAMETERS: Op - Root Op object
135 * DescendingCallback - Called during tree descent
136 * AscendingCallback - Called during tree ascent
137 * Context - To be passed to the callbacks
138 *
139 * RETURN: Status from callback(s)
140 *
141 * DESCRIPTION: Walk the entire parse tree.
142 *
143 ******************************************************************************/
144
145 void
AcpiDmWalkParseTree(ACPI_PARSE_OBJECT * Op,ASL_WALK_CALLBACK DescendingCallback,ASL_WALK_CALLBACK AscendingCallback,void * Context)146 AcpiDmWalkParseTree (
147 ACPI_PARSE_OBJECT *Op,
148 ASL_WALK_CALLBACK DescendingCallback,
149 ASL_WALK_CALLBACK AscendingCallback,
150 void *Context)
151 {
152 BOOLEAN NodePreviouslyVisited;
153 ACPI_PARSE_OBJECT *StartOp = Op;
154 ACPI_STATUS Status;
155 ACPI_PARSE_OBJECT *Next;
156 ACPI_OP_WALK_INFO *Info = Context;
157
158
159 Info->Level = 0;
160 NodePreviouslyVisited = FALSE;
161
162 while (Op)
163 {
164 if (NodePreviouslyVisited)
165 {
166 if (AscendingCallback)
167 {
168 Status = AscendingCallback (Op, Info->Level, Context);
169 if (ACPI_FAILURE (Status))
170 {
171 return;
172 }
173 }
174 }
175 else
176 {
177 /* Let the callback process the node */
178
179 Status = DescendingCallback (Op, Info->Level, Context);
180 if (ACPI_SUCCESS (Status))
181 {
182 /* Visit children first, once */
183
184 Next = AcpiPsGetArg (Op, 0);
185 if (Next)
186 {
187 Info->Level++;
188 Op = Next;
189 continue;
190 }
191 }
192 else if (Status != AE_CTRL_DEPTH)
193 {
194 /* Exit immediately on any error */
195
196 return;
197 }
198 }
199
200 /* Terminate walk at start op */
201
202 if (Op == StartOp)
203 {
204 break;
205 }
206
207 /* No more children, re-visit this node */
208
209 if (!NodePreviouslyVisited)
210 {
211 NodePreviouslyVisited = TRUE;
212 continue;
213 }
214
215 /* No more children, visit peers */
216
217 if (Op->Common.Next)
218 {
219 Op = Op->Common.Next;
220 NodePreviouslyVisited = FALSE;
221 }
222 else
223 {
224 /* No peers, re-visit parent */
225
226 if (Info->Level != 0 )
227 {
228 Info->Level--;
229 }
230
231 Op = Op->Common.Parent;
232 NodePreviouslyVisited = TRUE;
233 }
234 }
235
236 /* If we get here, the walk completed with no errors */
237
238 return;
239 }
240
241
242 /*******************************************************************************
243 *
244 * FUNCTION: AcpiDmBlockType
245 *
246 * PARAMETERS: Op - Object to be examined
247 *
248 * RETURN: BlockType - not a block, parens, braces, or even both.
249 *
250 * DESCRIPTION: Type of block for this op (parens or braces)
251 *
252 ******************************************************************************/
253
254 UINT32
AcpiDmBlockType(ACPI_PARSE_OBJECT * Op)255 AcpiDmBlockType (
256 ACPI_PARSE_OBJECT *Op)
257 {
258 const ACPI_OPCODE_INFO *OpInfo;
259
260
261 if (!Op)
262 {
263 return (BLOCK_NONE);
264 }
265
266 switch (Op->Common.AmlOpcode)
267 {
268 case AML_ELSE_OP:
269
270 return (BLOCK_BRACE);
271
272 case AML_METHOD_OP:
273 case AML_DEVICE_OP:
274 case AML_SCOPE_OP:
275 case AML_PROCESSOR_OP:
276 case AML_POWER_RESOURCE_OP:
277 case AML_THERMAL_ZONE_OP:
278 case AML_IF_OP:
279 case AML_WHILE_OP:
280 case AML_FIELD_OP:
281 case AML_INDEX_FIELD_OP:
282 case AML_BANK_FIELD_OP:
283
284 return (BLOCK_PAREN | BLOCK_BRACE);
285
286 case AML_BUFFER_OP:
287
288 if ((Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) ||
289 (Op->Common.DisasmOpcode == ACPI_DASM_UUID) ||
290 (Op->Common.DisasmOpcode == ACPI_DASM_PLD_METHOD))
291 {
292 return (BLOCK_NONE);
293 }
294
295 ACPI_FALLTHROUGH;
296
297 case AML_PACKAGE_OP:
298 case AML_VARIABLE_PACKAGE_OP:
299
300 return (BLOCK_PAREN | BLOCK_BRACE);
301
302 case AML_EVENT_OP:
303
304 return (BLOCK_PAREN);
305
306 case AML_INT_METHODCALL_OP:
307
308 if (Op->Common.Parent &&
309 ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
310 (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP)))
311 {
312 /* This is a reference to a method, not an invocation */
313
314 return (BLOCK_NONE);
315 }
316
317 ACPI_FALLTHROUGH;
318
319 default:
320
321 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
322 if (OpInfo->Flags & AML_HAS_ARGS)
323 {
324 return (BLOCK_PAREN);
325 }
326
327 return (BLOCK_NONE);
328 }
329 }
330
331
332 /*******************************************************************************
333 *
334 * FUNCTION: AcpiDmListType
335 *
336 * PARAMETERS: Op - Object to be examined
337 *
338 * RETURN: ListType - has commas or not.
339 *
340 * DESCRIPTION: Type of block for this op (parens or braces)
341 *
342 ******************************************************************************/
343
344 UINT32
AcpiDmListType(ACPI_PARSE_OBJECT * Op)345 AcpiDmListType (
346 ACPI_PARSE_OBJECT *Op)
347 {
348 const ACPI_OPCODE_INFO *OpInfo;
349
350
351 if (!Op)
352 {
353 return (BLOCK_NONE);
354 }
355
356 switch (Op->Common.AmlOpcode)
357 {
358
359 case AML_ELSE_OP:
360 case AML_METHOD_OP:
361 case AML_DEVICE_OP:
362 case AML_SCOPE_OP:
363 case AML_POWER_RESOURCE_OP:
364 case AML_PROCESSOR_OP:
365 case AML_THERMAL_ZONE_OP:
366 case AML_IF_OP:
367 case AML_WHILE_OP:
368 case AML_FIELD_OP:
369 case AML_INDEX_FIELD_OP:
370 case AML_BANK_FIELD_OP:
371
372 return (BLOCK_NONE);
373
374 case AML_BUFFER_OP:
375 case AML_PACKAGE_OP:
376 case AML_VARIABLE_PACKAGE_OP:
377
378 return (BLOCK_COMMA_LIST);
379
380 default:
381
382 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
383 if (OpInfo->Flags & AML_HAS_ARGS)
384 {
385 return (BLOCK_COMMA_LIST);
386 }
387
388 return (BLOCK_NONE);
389 }
390 }
391
392
393 /*******************************************************************************
394 *
395 * FUNCTION: AcpiDmDescendingOp
396 *
397 * PARAMETERS: ASL_WALK_CALLBACK
398 *
399 * RETURN: Status
400 *
401 * DESCRIPTION: First visitation of a parse object during tree descent.
402 * Decode opcode name and begin parameter list(s), if any.
403 *
404 ******************************************************************************/
405
406 static ACPI_STATUS
AcpiDmDescendingOp(ACPI_PARSE_OBJECT * Op,UINT32 Level,void * Context)407 AcpiDmDescendingOp (
408 ACPI_PARSE_OBJECT *Op,
409 UINT32 Level,
410 void *Context)
411 {
412 ACPI_OP_WALK_INFO *Info = Context;
413 const ACPI_OPCODE_INFO *OpInfo;
414 UINT32 Name;
415 ACPI_PARSE_OBJECT *NextOp;
416 ACPI_PARSE_OBJECT *NextOp2;
417 UINT32 AmlOffset;
418
419
420 /* Determine which file this parse node is contained in. */
421
422 if (AcpiGbl_CaptureComments)
423 {
424 ASL_CV_LABEL_FILENODE (Op);
425
426 if (Level != 0 && ASL_CV_FILE_HAS_SWITCHED (Op))
427 {
428 ASL_CV_SWITCH_FILES (Level, Op);
429 }
430
431 /* If this parse node has regular comments, print them here. */
432
433 ASL_CV_PRINT_ONE_COMMENT (Op, AML_COMMENT_STANDARD, NULL, Level);
434 }
435
436 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
437
438 /* Listing support to dump the AML code after the ASL statement */
439
440 if (AcpiGbl_DmOpt_Listing)
441 {
442 /* We only care about these classes of objects */
443
444 if ((OpInfo->Class == AML_CLASS_NAMED_OBJECT) ||
445 (OpInfo->Class == AML_CLASS_CONTROL) ||
446 (OpInfo->Class == AML_CLASS_CREATE) ||
447 ((OpInfo->Class == AML_CLASS_EXECUTE) && (!Op->Common.Next)))
448 {
449 if (AcpiGbl_DmOpt_Listing && Info->PreviousAml)
450 {
451 /* Dump the AML byte code for the previous Op */
452
453 if (Op->Common.Aml > Info->PreviousAml)
454 {
455 AcpiOsPrintf ("\n");
456 AcpiUtDumpBuffer (
457 (Info->StartAml + Info->AmlOffset),
458 (Op->Common.Aml - Info->PreviousAml),
459 DB_BYTE_DISPLAY, Info->AmlOffset);
460 AcpiOsPrintf ("\n");
461 }
462
463 Info->AmlOffset = (Op->Common.Aml - Info->StartAml);
464 }
465
466 Info->PreviousAml = Op->Common.Aml;
467 }
468 }
469
470 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE)
471 {
472 /* Ignore this op -- it was handled elsewhere */
473
474 return (AE_CTRL_DEPTH);
475 }
476
477 if (Op->Common.DisasmOpcode == ACPI_DASM_IGNORE_SINGLE)
478 {
479 /* Ignore this op, but not it's children */
480
481 return (AE_OK);
482 }
483
484 if (Op->Common.AmlOpcode == AML_IF_OP)
485 {
486 NextOp = AcpiPsGetDepthNext (NULL, Op);
487 if (NextOp)
488 {
489 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
490
491 /* Don't emit the actual embedded externals unless asked */
492
493 if (!AcpiGbl_DmEmitExternalOpcodes)
494 {
495 /*
496 * A Zero predicate indicates the possibility of one or more
497 * External() opcodes within the If() block.
498 */
499 if (NextOp->Common.AmlOpcode == AML_ZERO_OP)
500 {
501 NextOp2 = NextOp->Common.Next;
502
503 if (NextOp2 &&
504 (NextOp2->Common.AmlOpcode == AML_EXTERNAL_OP))
505 {
506 /* Ignore the If 0 block and all children */
507
508 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
509 return (AE_CTRL_DEPTH);
510 }
511 }
512 }
513 }
514 }
515
516 /* Level 0 is at the Definition Block level */
517
518 if (Level == 0)
519 {
520 /* In verbose mode, print the AML offset, opcode and depth count */
521
522 if (Info->WalkState)
523 {
524 AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml,
525 Info->WalkState->ParserState.AmlStart);
526 if (AcpiGbl_DmOpt_Verbose)
527 {
528 if (AcpiGbl_CmSingleStep)
529 {
530 AcpiOsPrintf ("%5.5X/%4.4X: ",
531 AmlOffset, (UINT32) Op->Common.AmlOpcode);
532 }
533 else
534 {
535 AcpiOsPrintf ("AML Offset %5.5X, Opcode %4.4X: ",
536 AmlOffset, (UINT32) Op->Common.AmlOpcode);
537 }
538 }
539 }
540
541 if (Op->Common.AmlOpcode == AML_SCOPE_OP)
542 {
543 /* This is the beginning of the Definition Block */
544
545 AcpiOsPrintf ("{\n");
546
547 /* Emit all External() declarations here */
548
549 if (!AcpiGbl_DmEmitExternalOpcodes)
550 {
551 AcpiDmEmitExternals ();
552 }
553
554 return (AE_OK);
555 }
556 }
557 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
558 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) &&
559 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_ELSEIF)) &&
560 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP))
561 {
562 /*
563 * This is a first-level element of a term list,
564 * indent a new line
565 */
566 switch (Op->Common.AmlOpcode)
567 {
568 case AML_NOOP_OP:
569 /*
570 * Optionally just ignore this opcode. Some tables use
571 * NoOp opcodes for "padding" out packages that the BIOS
572 * changes dynamically. This can leave hundreds or
573 * thousands of NoOp opcodes that if disassembled,
574 * cannot be compiled because they are syntactically
575 * incorrect.
576 */
577 if (AcpiGbl_IgnoreNoopOperator)
578 {
579 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
580 return (AE_OK);
581 }
582
583 ACPI_FALLTHROUGH;
584
585 default:
586
587 AcpiDmIndent (Level);
588 break;
589 }
590
591 Info->LastLevel = Level;
592 Info->Count = 0;
593 }
594
595 /*
596 * This is an inexpensive mechanism to try and keep lines from getting
597 * too long. When the limit is hit, start a new line at the previous
598 * indent plus one. A better but more expensive mechanism would be to
599 * keep track of the current column.
600 */
601 Info->Count++;
602 if (Info->Count /* +Info->LastLevel */ > 12)
603 {
604 Info->Count = 0;
605 AcpiOsPrintf ("\n");
606 AcpiDmIndent (Info->LastLevel + 1);
607 }
608
609 /* If ASL+ is enabled, check for a C-style operator */
610
611 if (AcpiDmCheckForSymbolicOpcode (Op, Info))
612 {
613 return (AE_OK);
614 }
615
616 /* Print the opcode name */
617
618 AcpiDmDisassembleOneOp (NULL, Info, Op);
619
620 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) ||
621 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP))
622 {
623 return (AE_OK);
624 }
625
626 if ((Op->Common.AmlOpcode == AML_NAME_OP) ||
627 (Op->Common.AmlOpcode == AML_RETURN_OP))
628 {
629 Info->Level--;
630 }
631
632 if (Op->Common.AmlOpcode == AML_EXTERNAL_OP)
633 {
634 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
635 return (AE_CTRL_DEPTH);
636 }
637
638 /* Start the opcode argument list if necessary */
639
640 if ((OpInfo->Flags & AML_HAS_ARGS) ||
641 (Op->Common.AmlOpcode == AML_EVENT_OP))
642 {
643 /* This opcode has an argument list */
644
645 if (AcpiDmBlockType (Op) & BLOCK_PAREN)
646 {
647 AcpiOsPrintf (" (");
648 if (!(AcpiDmBlockType (Op) & BLOCK_BRACE))
649 {
650 ASL_CV_PRINT_ONE_COMMENT (Op, AMLCOMMENT_INLINE, " ", 0);
651 }
652 }
653
654 /* If this is a named opcode, print the associated name value */
655
656 if (OpInfo->Flags & AML_NAMED)
657 {
658 switch (Op->Common.AmlOpcode)
659 {
660 case AML_ALIAS_OP:
661
662 NextOp = AcpiPsGetDepthNext (NULL, Op);
663 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
664 AcpiDmNamestring (NextOp->Common.Value.Name);
665 AcpiOsPrintf (", ");
666
667 ACPI_FALLTHROUGH;
668
669 default:
670
671 Name = AcpiPsGetName (Op);
672 if (Op->Named.Path)
673 {
674 AcpiDmNamestring (Op->Named.Path);
675 }
676 else
677 {
678 AcpiDmDumpName (Name);
679 }
680
681 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP)
682 {
683 if (AcpiGbl_DmOpt_Verbose)
684 {
685 (void) AcpiPsDisplayObjectPathname (NULL, Op);
686 }
687 }
688 break;
689 }
690
691 switch (Op->Common.AmlOpcode)
692 {
693 case AML_METHOD_OP:
694
695 AcpiDmMethodFlags (Op);
696 ASL_CV_CLOSE_PAREN (Op, Level);
697
698 /* Emit description comment for Method() with a predefined ACPI name */
699
700 AcpiDmPredefinedDescription (Op);
701 break;
702
703 case AML_NAME_OP:
704
705 /* Check for _HID and related EISAID() */
706
707 AcpiDmCheckForHardwareId (Op);
708 AcpiOsPrintf (", ");
709 ASL_CV_PRINT_ONE_COMMENT (Op, AML_NAMECOMMENT, NULL, 0);
710 break;
711
712 case AML_REGION_OP:
713
714 AcpiDmRegionFlags (Op);
715 break;
716
717 case AML_POWER_RESOURCE_OP:
718
719 /* Mark the next two Ops as part of the parameter list */
720
721 AcpiOsPrintf (", ");
722 NextOp = AcpiPsGetDepthNext (NULL, Op);
723 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
724
725 NextOp = NextOp->Common.Next;
726 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
727 return (AE_OK);
728
729 case AML_PROCESSOR_OP:
730
731 /* Mark the next three Ops as part of the parameter list */
732
733 AcpiOsPrintf (", ");
734 NextOp = AcpiPsGetDepthNext (NULL, Op);
735 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
736
737 NextOp = NextOp->Common.Next;
738 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
739
740 NextOp = NextOp->Common.Next;
741 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
742 return (AE_OK);
743
744 case AML_MUTEX_OP:
745 case AML_DATA_REGION_OP:
746
747 AcpiOsPrintf (", ");
748 return (AE_OK);
749
750 case AML_EVENT_OP:
751 case AML_ALIAS_OP:
752
753 return (AE_OK);
754
755 case AML_SCOPE_OP:
756 case AML_DEVICE_OP:
757 case AML_THERMAL_ZONE_OP:
758
759 ASL_CV_CLOSE_PAREN (Op, Level);
760 break;
761
762 default:
763
764 AcpiOsPrintf ("*** Unhandled named opcode %X\n",
765 Op->Common.AmlOpcode);
766 break;
767 }
768 }
769
770 else switch (Op->Common.AmlOpcode)
771 {
772 case AML_FIELD_OP:
773 case AML_BANK_FIELD_OP:
774 case AML_INDEX_FIELD_OP:
775
776 Info->BitOffset = 0;
777
778 /* Name of the parent OperationRegion */
779
780 NextOp = AcpiPsGetDepthNext (NULL, Op);
781 AcpiDmNamestring (NextOp->Common.Value.Name);
782 AcpiOsPrintf (", ");
783 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
784
785 switch (Op->Common.AmlOpcode)
786 {
787 case AML_BANK_FIELD_OP:
788
789 /* Namestring - Bank Name */
790
791 NextOp = AcpiPsGetDepthNext (NULL, NextOp);
792 AcpiDmNamestring (NextOp->Common.Value.Name);
793 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
794 AcpiOsPrintf (", ");
795
796 /*
797 * Bank Value. This is a TermArg in the middle of the parameter
798 * list, must handle it here.
799 *
800 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMETER_LIST
801 * eliminates newline in the output.
802 */
803 NextOp = NextOp->Common.Next;
804
805 Info->Flags = ACPI_PARSEOP_PARAMETER_LIST;
806 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp,
807 AcpiDmAscendingOp, Info);
808 Info->Flags = 0;
809 Info->Level = Level;
810
811 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
812 AcpiOsPrintf (", ");
813 break;
814
815 case AML_INDEX_FIELD_OP:
816
817 /* Namestring - Data Name */
818
819 NextOp = AcpiPsGetDepthNext (NULL, NextOp);
820 AcpiDmNamestring (NextOp->Common.Value.Name);
821 AcpiOsPrintf (", ");
822 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
823 break;
824
825 default:
826
827 break;
828 }
829
830 AcpiDmFieldFlags (NextOp);
831 break;
832
833 case AML_BUFFER_OP:
834
835 /* The next op is the size parameter */
836
837 NextOp = AcpiPsGetDepthNext (NULL, Op);
838 if (!NextOp)
839 {
840 /* Single-step support */
841
842 return (AE_OK);
843 }
844
845 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE)
846 {
847 /*
848 * We have a resource list. Don't need to output
849 * the buffer size Op. Open up a new block
850 */
851 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
852 ASL_CV_CLOSE_PAREN (Op, Level);
853
854 if (Op->Asl.Parent->Common.AmlOpcode == AML_NAME_OP)
855 {
856 /*
857 * Emit description comment showing the full ACPI name
858 * of the ResourceTemplate only if it was defined using a
859 * Name statement.
860 */
861 AcpiDmPredefinedDescription (Op->Asl.Parent);
862 }
863
864 AcpiDmPredefinedDescription (Op->Asl.Parent);
865
866 AcpiOsPrintf ("\n");
867 AcpiDmIndent (Info->Level);
868 AcpiOsPrintf ("{\n");
869 return (AE_OK);
870 }
871
872 /* Normal Buffer, mark size as in the parameter list */
873
874 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
875 return (AE_OK);
876
877 case AML_IF_OP:
878 case AML_VARIABLE_PACKAGE_OP:
879 case AML_WHILE_OP:
880
881 /* The next op is the size or predicate parameter */
882
883 NextOp = AcpiPsGetDepthNext (NULL, Op);
884 if (NextOp)
885 {
886 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
887 }
888 return (AE_OK);
889
890 case AML_PACKAGE_OP:
891
892 /* The next op is the size parameter */
893
894 NextOp = AcpiPsGetDepthNext (NULL, Op);
895 if (NextOp)
896 {
897 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMETER_LIST;
898 }
899 return (AE_OK);
900
901 case AML_MATCH_OP:
902
903 AcpiDmMatchOp (Op);
904 break;
905
906 default:
907
908 break;
909 }
910
911 if (AcpiDmBlockType (Op) & BLOCK_BRACE)
912 {
913 AcpiOsPrintf ("\n");
914 AcpiDmIndent (Level);
915 AcpiOsPrintf ("{\n");
916 }
917 }
918
919 return (AE_OK);
920 }
921
922
923 /*******************************************************************************
924 *
925 * FUNCTION: AcpiDmAscendingOp
926 *
927 * PARAMETERS: ASL_WALK_CALLBACK
928 *
929 * RETURN: Status
930 *
931 * DESCRIPTION: Second visitation of a parse object, during ascent of parse
932 * tree. Close out any parameter lists and complete the opcode.
933 *
934 ******************************************************************************/
935
936 static ACPI_STATUS
AcpiDmAscendingOp(ACPI_PARSE_OBJECT * Op,UINT32 Level,void * Context)937 AcpiDmAscendingOp (
938 ACPI_PARSE_OBJECT *Op,
939 UINT32 Level,
940 void *Context)
941 {
942 ACPI_OP_WALK_INFO *Info = Context;
943 ACPI_PARSE_OBJECT *ParentOp;
944
945
946 /* Point the Op's filename pointer to the proper file */
947
948 if (AcpiGbl_CaptureComments)
949 {
950 ASL_CV_LABEL_FILENODE (Op);
951
952 /* Switch the output of these files if necessary */
953
954 if (ASL_CV_FILE_HAS_SWITCHED (Op))
955 {
956 ASL_CV_SWITCH_FILES (Level, Op);
957 }
958 }
959
960 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE ||
961 Op->Common.DisasmOpcode == ACPI_DASM_IGNORE_SINGLE)
962 {
963 /* Ignore this op -- it was handled elsewhere */
964
965 return (AE_OK);
966 }
967
968 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP))
969 {
970 /* Indicates the end of the current descriptor block (table) */
971
972 ASL_CV_CLOSE_BRACE (Op, Level);
973
974 /* Print any comments that are at the end of the file here */
975
976 if (AcpiGbl_CaptureComments && AcpiGbl_LastListHead)
977 {
978 AcpiOsPrintf ("\n");
979 ASL_CV_PRINT_ONE_COMMENT_LIST (AcpiGbl_LastListHead, 0);
980 }
981 AcpiOsPrintf ("\n\n");
982
983 return (AE_OK);
984 }
985
986 switch (AcpiDmBlockType (Op))
987 {
988 case BLOCK_PAREN:
989
990 /* Completed an op that has arguments, add closing paren if needed */
991
992 AcpiDmCloseOperator (Op);
993
994 if (Op->Common.AmlOpcode == AML_NAME_OP)
995 {
996 /* Emit description comment for Name() with a predefined ACPI name */
997
998 AcpiDmPredefinedDescription (Op);
999 }
1000 else
1001 {
1002 /* For Create* operators, attempt to emit resource tag description */
1003
1004 AcpiDmFieldPredefinedDescription (Op);
1005 }
1006
1007 /* Decode Notify() values */
1008
1009 if (Op->Common.AmlOpcode == AML_NOTIFY_OP)
1010 {
1011 AcpiDmNotifyDescription (Op);
1012 }
1013
1014 AcpiDmDisplayTargetPathname (Op);
1015
1016 /* Could be a nested operator, check if comma required */
1017
1018 if (!AcpiDmCommaIfListMember (Op))
1019 {
1020 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
1021 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) &&
1022 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP))
1023 {
1024 /*
1025 * This is a first-level element of a term list
1026 * start a new line
1027 */
1028 if (!(Info->Flags & ACPI_PARSEOP_PARAMETER_LIST))
1029 {
1030 AcpiOsPrintf ("\n");
1031 }
1032 }
1033 }
1034 break;
1035
1036 case BLOCK_BRACE:
1037 case (BLOCK_BRACE | BLOCK_PAREN):
1038
1039 /* Completed an op that has a term list, add closing brace */
1040
1041 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)
1042 {
1043 ASL_CV_CLOSE_BRACE (Op, Level);
1044 }
1045 else
1046 {
1047 AcpiDmIndent (Level);
1048 ASL_CV_CLOSE_BRACE (Op, Level);
1049 }
1050
1051 AcpiDmCommaIfListMember (Op);
1052
1053 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN)
1054 {
1055 AcpiOsPrintf ("\n");
1056 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST))
1057 {
1058 if ((Op->Common.AmlOpcode == AML_IF_OP) &&
1059 (Op->Common.Next) &&
1060 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP))
1061 {
1062 break;
1063 }
1064
1065 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
1066 (!Op->Common.Next))
1067 {
1068 break;
1069 }
1070 AcpiOsPrintf ("\n");
1071 }
1072 }
1073 break;
1074
1075 case BLOCK_NONE:
1076 default:
1077
1078 /* Could be a nested operator, check if comma required */
1079
1080 if (!AcpiDmCommaIfListMember (Op))
1081 {
1082 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
1083 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)) &&
1084 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP))
1085 {
1086 /*
1087 * This is a first-level element of a term list
1088 * start a new line
1089 */
1090 AcpiOsPrintf ("\n");
1091 }
1092 }
1093 else if (Op->Common.Parent)
1094 {
1095 switch (Op->Common.Parent->Common.AmlOpcode)
1096 {
1097 case AML_PACKAGE_OP:
1098 case AML_VARIABLE_PACKAGE_OP:
1099
1100 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST))
1101 {
1102 AcpiOsPrintf ("\n");
1103 }
1104 break;
1105
1106 default:
1107
1108 break;
1109 }
1110 }
1111 break;
1112 }
1113
1114 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST)
1115 {
1116 if ((Op->Common.Next) &&
1117 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMETER_LIST))
1118 {
1119 return (AE_OK);
1120 }
1121
1122 /*
1123 * The parent Op is guaranteed to be valid because of the flag
1124 * ACPI_PARSEOP_PARAMETER_LIST -- which means that this op is part of
1125 * a parameter list and thus has a valid parent.
1126 */
1127 ParentOp = Op->Common.Parent;
1128
1129 /*
1130 * Just completed a parameter node for something like "Buffer (param)".
1131 * Close the paren and open up the term list block with a brace.
1132 *
1133 * Switch predicates don't have a Next node but require a closing paren
1134 * and opening brace.
1135 */
1136 if (Op->Common.Next || Op->Common.DisasmOpcode == ACPI_DASM_SWITCH_PREDICATE)
1137 {
1138 ASL_CV_CLOSE_PAREN (Op, Level);
1139
1140 /*
1141 * Emit a description comment for a Name() operator that is a
1142 * predefined ACPI name. Must check the grandparent.
1143 */
1144 ParentOp = ParentOp->Common.Parent;
1145 if (ParentOp &&
1146 (ParentOp->Asl.AmlOpcode == AML_NAME_OP))
1147 {
1148 AcpiDmPredefinedDescription (ParentOp);
1149 }
1150
1151 /* Correct the indentation level for Switch and Case predicates */
1152
1153 if (Op->Common.DisasmOpcode == ACPI_DASM_SWITCH_PREDICATE)
1154 {
1155 --Level;
1156 }
1157
1158 AcpiOsPrintf ("\n");
1159 AcpiDmIndent (Level - 1);
1160 AcpiOsPrintf ("{\n");
1161 }
1162 else
1163 {
1164 ParentOp->Common.DisasmFlags |= ACPI_PARSEOP_EMPTY_TERMLIST;
1165 ASL_CV_CLOSE_PAREN (Op, Level);
1166 AcpiOsPrintf ("{");
1167 }
1168 }
1169
1170 if ((Op->Common.AmlOpcode == AML_NAME_OP) ||
1171 (Op->Common.AmlOpcode == AML_RETURN_OP))
1172 {
1173 Info->Level++;
1174 }
1175
1176 /*
1177 * For ASL+, check for and emit a C-style symbol. If valid, the
1178 * symbol string has been deferred until after the first operand
1179 */
1180 if (AcpiGbl_CstyleDisassembly)
1181 {
1182 if (Op->Asl.OperatorSymbol)
1183 {
1184 AcpiOsPrintf ("%s", Op->Asl.OperatorSymbol);
1185 Op->Asl.OperatorSymbol = NULL;
1186 }
1187 }
1188
1189 return (AE_OK);
1190 }
1191