xref: /freebsd/sys/contrib/dev/acpica/components/debugger/dbobject.c (revision 722b16673c40aedf280895f2f2f676bb494518d7)
1 /*******************************************************************************
2  *
3  * Module Name: dbobject - ACPI object decode and display
4  *
5  ******************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2023, 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 <contrib/dev/acpica/include/acpi.h>
153 #include <contrib/dev/acpica/include/accommon.h>
154 #include <contrib/dev/acpica/include/acnamesp.h>
155 #include <contrib/dev/acpica/include/acdebug.h>
156 
157 
158 #define _COMPONENT          ACPI_CA_DEBUGGER
159         ACPI_MODULE_NAME    ("dbobject")
160 
161 
162 /* Local prototypes */
163 
164 static void
165 AcpiDbDecodeNode (
166     ACPI_NAMESPACE_NODE     *Node);
167 
168 
169 /*******************************************************************************
170  *
171  * FUNCTION:    AcpiDbDumpMethodInfo
172  *
173  * PARAMETERS:  Status          - Method execution status
174  *              WalkState       - Current state of the parse tree walk
175  *
176  * RETURN:      None
177  *
178  * DESCRIPTION: Called when a method has been aborted because of an error.
179  *              Dumps the method execution stack, and the method locals/args,
180  *              and disassembles the AML opcode that failed.
181  *
182  ******************************************************************************/
183 
184 void
AcpiDbDumpMethodInfo(ACPI_STATUS Status,ACPI_WALK_STATE * WalkState)185 AcpiDbDumpMethodInfo (
186     ACPI_STATUS             Status,
187     ACPI_WALK_STATE         *WalkState)
188 {
189     ACPI_THREAD_STATE       *Thread;
190     ACPI_NAMESPACE_NODE     *Node;
191 
192 
193     Node = WalkState->MethodNode;
194 
195     /* There are no locals or arguments for the module-level code case */
196 
197     if (Node == AcpiGbl_RootNode)
198     {
199         return;
200     }
201 
202     /* Ignore control codes, they are not errors */
203 
204     if (ACPI_CNTL_EXCEPTION (Status))
205     {
206         return;
207     }
208 
209     /* We may be executing a deferred opcode */
210 
211     if (WalkState->DeferredNode)
212     {
213         AcpiOsPrintf ("Executing subtree for Buffer/Package/Region\n");
214         return;
215     }
216 
217     /*
218      * If there is no Thread, we are not actually executing a method.
219      * This can happen when the iASL compiler calls the interpreter
220      * to perform constant folding.
221      */
222     Thread = WalkState->Thread;
223     if (!Thread)
224     {
225         return;
226     }
227 
228     /* Display the method locals and arguments */
229 
230     AcpiOsPrintf ("\n");
231     AcpiDbDecodeLocals (WalkState);
232     AcpiOsPrintf ("\n");
233     AcpiDbDecodeArguments (WalkState);
234     AcpiOsPrintf ("\n");
235 }
236 
237 
238 /*******************************************************************************
239  *
240  * FUNCTION:    AcpiDbDecodeInternalObject
241  *
242  * PARAMETERS:  ObjDesc         - Object to be displayed
243  *
244  * RETURN:      None
245  *
246  * DESCRIPTION: Short display of an internal object. Numbers/Strings/Buffers.
247  *
248  ******************************************************************************/
249 
250 void
AcpiDbDecodeInternalObject(ACPI_OPERAND_OBJECT * ObjDesc)251 AcpiDbDecodeInternalObject (
252     ACPI_OPERAND_OBJECT     *ObjDesc)
253 {
254     UINT32                  i;
255 
256 
257     if (!ObjDesc)
258     {
259         AcpiOsPrintf (" Uninitialized");
260         return;
261     }
262 
263     if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) != ACPI_DESC_TYPE_OPERAND)
264     {
265         AcpiOsPrintf (" %p [%s]", ObjDesc,
266             AcpiUtGetDescriptorName (ObjDesc));
267         return;
268     }
269 
270     AcpiOsPrintf (" %s", AcpiUtGetObjectTypeName (ObjDesc));
271 
272     switch (ObjDesc->Common.Type)
273     {
274     case ACPI_TYPE_INTEGER:
275 
276         AcpiOsPrintf (" %8.8X%8.8X",
277             ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value));
278         break;
279 
280     case ACPI_TYPE_STRING:
281 
282         AcpiOsPrintf ("(%u) \"%.60s",
283             ObjDesc->String.Length, ObjDesc->String.Pointer);
284 
285         if (ObjDesc->String.Length > 60)
286         {
287             AcpiOsPrintf ("...");
288         }
289         else
290         {
291             AcpiOsPrintf ("\"");
292         }
293         break;
294 
295     case ACPI_TYPE_BUFFER:
296 
297         AcpiOsPrintf ("(%u)", ObjDesc->Buffer.Length);
298         for (i = 0; (i < 8) && (i < ObjDesc->Buffer.Length); i++)
299         {
300             AcpiOsPrintf (" %2.2X", ObjDesc->Buffer.Pointer[i]);
301         }
302         break;
303 
304     default:
305 
306         AcpiOsPrintf (" %p", ObjDesc);
307         break;
308     }
309 }
310 
311 
312 /*******************************************************************************
313  *
314  * FUNCTION:    AcpiDbDecodeNode
315  *
316  * PARAMETERS:  Node        - Object to be displayed
317  *
318  * RETURN:      None
319  *
320  * DESCRIPTION: Short display of a namespace node
321  *
322  ******************************************************************************/
323 
324 static void
AcpiDbDecodeNode(ACPI_NAMESPACE_NODE * Node)325 AcpiDbDecodeNode (
326     ACPI_NAMESPACE_NODE     *Node)
327 {
328 
329     AcpiOsPrintf ("<Node>            Name %4.4s",
330         AcpiUtGetNodeName (Node));
331 
332     if (Node->Flags & ANOBJ_METHOD_ARG)
333     {
334         AcpiOsPrintf (" [Method Arg]");
335     }
336     if (Node->Flags & ANOBJ_METHOD_LOCAL)
337     {
338         AcpiOsPrintf (" [Method Local]");
339     }
340 
341     switch (Node->Type)
342     {
343     /* These types have no attached object */
344 
345     case ACPI_TYPE_DEVICE:
346 
347         AcpiOsPrintf (" Device");
348         break;
349 
350     case ACPI_TYPE_THERMAL:
351 
352         AcpiOsPrintf (" Thermal Zone");
353         break;
354 
355     default:
356 
357         AcpiDbDecodeInternalObject (AcpiNsGetAttachedObject (Node));
358         break;
359     }
360 }
361 
362 
363 /*******************************************************************************
364  *
365  * FUNCTION:    AcpiDbDisplayInternalObject
366  *
367  * PARAMETERS:  ObjDesc         - Object to be displayed
368  *              WalkState       - Current walk state
369  *
370  * RETURN:      None
371  *
372  * DESCRIPTION: Short display of an internal object
373  *
374  ******************************************************************************/
375 
376 void
AcpiDbDisplayInternalObject(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_WALK_STATE * WalkState)377 AcpiDbDisplayInternalObject (
378     ACPI_OPERAND_OBJECT     *ObjDesc,
379     ACPI_WALK_STATE         *WalkState)
380 {
381     UINT8                   Type;
382 
383 
384     AcpiOsPrintf ("%p ", ObjDesc);
385 
386     if (!ObjDesc)
387     {
388         AcpiOsPrintf ("<Null Object>\n");
389         return;
390     }
391 
392     /* Decode the object type */
393 
394     switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc))
395     {
396     case ACPI_DESC_TYPE_PARSER:
397 
398         AcpiOsPrintf ("<Parser>  ");
399         break;
400 
401     case ACPI_DESC_TYPE_NAMED:
402 
403         AcpiDbDecodeNode ((ACPI_NAMESPACE_NODE *) ObjDesc);
404         break;
405 
406     case ACPI_DESC_TYPE_OPERAND:
407 
408         Type = ObjDesc->Common.Type;
409         if (Type > ACPI_TYPE_LOCAL_MAX)
410         {
411             AcpiOsPrintf (" Type %X [Invalid Type]", (UINT32) Type);
412             return;
413         }
414 
415         /* Decode the ACPI object type */
416 
417         switch (ObjDesc->Common.Type)
418         {
419         case ACPI_TYPE_LOCAL_REFERENCE:
420 
421             AcpiOsPrintf ("[%s] ", AcpiUtGetReferenceName (ObjDesc));
422 
423             /* Decode the reference */
424 
425             switch (ObjDesc->Reference.Class)
426             {
427             case ACPI_REFCLASS_LOCAL:
428 
429                 AcpiOsPrintf ("%X ", ObjDesc->Reference.Value);
430                 if (WalkState)
431                 {
432                     ObjDesc = WalkState->LocalVariables
433                         [ObjDesc->Reference.Value].Object;
434                     AcpiOsPrintf ("%p", ObjDesc);
435                     AcpiDbDecodeInternalObject (ObjDesc);
436                 }
437                 break;
438 
439             case ACPI_REFCLASS_ARG:
440 
441                 AcpiOsPrintf ("%X ", ObjDesc->Reference.Value);
442                 if (WalkState)
443                 {
444                     ObjDesc = WalkState->Arguments
445                         [ObjDesc->Reference.Value].Object;
446                     AcpiOsPrintf ("%p", ObjDesc);
447                     AcpiDbDecodeInternalObject (ObjDesc);
448                 }
449                 break;
450 
451             case ACPI_REFCLASS_INDEX:
452 
453                 switch (ObjDesc->Reference.TargetType)
454                 {
455                 case ACPI_TYPE_BUFFER_FIELD:
456 
457                     AcpiOsPrintf ("%p", ObjDesc->Reference.Object);
458                     AcpiDbDecodeInternalObject (ObjDesc->Reference.Object);
459                     break;
460 
461                 case ACPI_TYPE_PACKAGE:
462 
463                     AcpiOsPrintf ("%p", ObjDesc->Reference.Where);
464                     if (!ObjDesc->Reference.Where)
465                     {
466                         AcpiOsPrintf (" Uninitialized WHERE pointer");
467                     }
468                     else
469                     {
470                         AcpiDbDecodeInternalObject (
471                             *(ObjDesc->Reference.Where));
472                     }
473                     break;
474 
475                 default:
476 
477                     AcpiOsPrintf ("Unknown index target type");
478                     break;
479                 }
480                 break;
481 
482             case ACPI_REFCLASS_REFOF:
483 
484                 if (!ObjDesc->Reference.Object)
485                 {
486                     AcpiOsPrintf (
487                         "Uninitialized reference subobject pointer");
488                     break;
489                 }
490 
491                 /* Reference can be to a Node or an Operand object */
492 
493                 switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc->Reference.Object))
494                 {
495                 case ACPI_DESC_TYPE_NAMED:
496 
497                     AcpiDbDecodeNode (ObjDesc->Reference.Object);
498                     break;
499 
500                 case ACPI_DESC_TYPE_OPERAND:
501 
502                     AcpiDbDecodeInternalObject (ObjDesc->Reference.Object);
503                     break;
504 
505                 default:
506                     break;
507                 }
508                 break;
509 
510             case ACPI_REFCLASS_NAME:
511 
512                 AcpiDbDecodeNode (ObjDesc->Reference.Node);
513                 break;
514 
515             case ACPI_REFCLASS_DEBUG:
516             case ACPI_REFCLASS_TABLE:
517 
518                 AcpiOsPrintf ("\n");
519                 break;
520 
521             default:    /* Unknown reference class */
522 
523                 AcpiOsPrintf ("%2.2X\n", ObjDesc->Reference.Class);
524                 break;
525             }
526             break;
527 
528         default:
529 
530             AcpiOsPrintf ("<Obj>            ");
531             AcpiDbDecodeInternalObject (ObjDesc);
532             break;
533         }
534         break;
535 
536     default:
537 
538         AcpiOsPrintf ("<Not a valid ACPI Object Descriptor> [%s]",
539             AcpiUtGetDescriptorName (ObjDesc));
540         break;
541     }
542 
543     AcpiOsPrintf ("\n");
544 }
545 
546 
547 /*******************************************************************************
548  *
549  * FUNCTION:    AcpiDbDecodeLocals
550  *
551  * PARAMETERS:  WalkState       - State for current method
552  *
553  * RETURN:      None
554  *
555  * DESCRIPTION: Display all locals for the currently running control method
556  *
557  ******************************************************************************/
558 
559 void
AcpiDbDecodeLocals(ACPI_WALK_STATE * WalkState)560 AcpiDbDecodeLocals (
561     ACPI_WALK_STATE         *WalkState)
562 {
563     UINT32                  i;
564     ACPI_OPERAND_OBJECT     *ObjDesc;
565     ACPI_NAMESPACE_NODE     *Node;
566     BOOLEAN                 DisplayLocals = FALSE;
567 
568 
569     Node = WalkState->MethodNode;
570 
571     /* There are no locals for the module-level code case */
572 
573     if (Node == AcpiGbl_RootNode)
574     {
575         return;
576     }
577 
578     if (!Node)
579     {
580         AcpiOsPrintf (
581             "No method node (Executing subtree for buffer or opregion)\n");
582         return;
583     }
584 
585     if (Node->Type != ACPI_TYPE_METHOD)
586     {
587         AcpiOsPrintf ("Executing subtree for Buffer/Package/Region\n");
588         return;
589     }
590 
591     /* Are any locals actually set? */
592 
593     for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++)
594     {
595         ObjDesc = WalkState->LocalVariables[i].Object;
596         if (ObjDesc)
597         {
598             DisplayLocals = TRUE;
599             break;
600         }
601     }
602 
603     /* If any are set, only display the ones that are set */
604 
605     if (DisplayLocals)
606     {
607         AcpiOsPrintf ("\nInitialized Local Variables for Method [%4.4s]:\n",
608             AcpiUtGetNodeName (Node));
609 
610         for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++)
611         {
612             ObjDesc = WalkState->LocalVariables[i].Object;
613             if (ObjDesc)
614             {
615                 AcpiOsPrintf ("    Local%X: ", i);
616                 AcpiDbDisplayInternalObject (ObjDesc, WalkState);
617             }
618         }
619     }
620     else
621     {
622         AcpiOsPrintf (
623             "No Local Variables are initialized for Method [%4.4s]\n",
624             AcpiUtGetNodeName (Node));
625     }
626 }
627 
628 
629 /*******************************************************************************
630  *
631  * FUNCTION:    AcpiDbDecodeArguments
632  *
633  * PARAMETERS:  WalkState       - State for current method
634  *
635  * RETURN:      None
636  *
637  * DESCRIPTION: Display all arguments for the currently running control method
638  *
639  ******************************************************************************/
640 
641 void
AcpiDbDecodeArguments(ACPI_WALK_STATE * WalkState)642 AcpiDbDecodeArguments (
643     ACPI_WALK_STATE         *WalkState)
644 {
645     UINT32                  i;
646     ACPI_OPERAND_OBJECT     *ObjDesc;
647     ACPI_NAMESPACE_NODE     *Node;
648     BOOLEAN                 DisplayArgs = FALSE;
649 
650 
651     Node = WalkState->MethodNode;
652 
653     /* There are no arguments for the module-level code case */
654 
655     if (Node == AcpiGbl_RootNode)
656     {
657         return;
658     }
659 
660     if (!Node)
661     {
662         AcpiOsPrintf (
663             "No method node (Executing subtree for buffer or opregion)\n");
664         return;
665     }
666 
667     if (Node->Type != ACPI_TYPE_METHOD)
668     {
669         AcpiOsPrintf ("Executing subtree for Buffer/Package/Region\n");
670         return;
671     }
672 
673     /* Are any arguments actually set? */
674 
675     for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++)
676     {
677         ObjDesc = WalkState->Arguments[i].Object;
678         if (ObjDesc)
679         {
680             DisplayArgs = TRUE;
681             break;
682         }
683     }
684 
685     /* If any are set, only display the ones that are set */
686 
687     if (DisplayArgs)
688     {
689         AcpiOsPrintf (
690             "Initialized Arguments for Method [%4.4s]:  "
691             "(%X arguments defined for method invocation)\n",
692             AcpiUtGetNodeName (Node), Node->Object->Method.ParamCount);
693 
694         for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++)
695         {
696             ObjDesc = WalkState->Arguments[i].Object;
697             if (ObjDesc)
698             {
699                 AcpiOsPrintf ("    Arg%u:   ", i);
700                 AcpiDbDisplayInternalObject (ObjDesc, WalkState);
701             }
702         }
703     }
704     else
705     {
706         AcpiOsPrintf (
707             "No Arguments are initialized for method [%4.4s]\n",
708             AcpiUtGetNodeName (Node));
709     }
710 }
711