xref: /freebsd/sys/contrib/dev/acpica/components/debugger/dbxface.c (revision 63a938566d524836885917d95bd491aa4400b181)
1 /*******************************************************************************
2  *
3  * Module Name: dbxface - AML Debugger external interfaces
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 <contrib/dev/acpica/include/acpi.h>
153 #include <contrib/dev/acpica/include/accommon.h>
154 #include <contrib/dev/acpica/include/amlcode.h>
155 #include <contrib/dev/acpica/include/acdebug.h>
156 #include <contrib/dev/acpica/include/acinterp.h>
157 
158 
159 #define _COMPONENT          ACPI_CA_DEBUGGER
160         ACPI_MODULE_NAME    ("dbxface")
161 
162 
163 /* Local prototypes */
164 
165 static ACPI_STATUS
166 AcpiDbStartCommand (
167     ACPI_WALK_STATE         *WalkState,
168     ACPI_PARSE_OBJECT       *Op);
169 
170 #ifdef ACPI_OBSOLETE_FUNCTIONS
171 void
172 AcpiDbMethodEnd (
173     ACPI_WALK_STATE         *WalkState);
174 #endif
175 
176 
177 /*******************************************************************************
178  *
179  * FUNCTION:    AcpiDbStartCommand
180  *
181  * PARAMETERS:  WalkState       - Current walk
182  *              Op              - Current executing Op, from AML interpreter
183  *
184  * RETURN:      Status
185  *
186  * DESCRIPTION: Enter debugger command loop
187  *
188  ******************************************************************************/
189 
190 static ACPI_STATUS
191 AcpiDbStartCommand (
192     ACPI_WALK_STATE         *WalkState,
193     ACPI_PARSE_OBJECT       *Op)
194 {
195     ACPI_STATUS             Status;
196 
197 
198     /* TBD: [Investigate] are there namespace locking issues here? */
199 
200     /* AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); */
201 
202     /* Go into the command loop and await next user command */
203 
204 
205     AcpiGbl_MethodExecuting = TRUE;
206     Status = AE_CTRL_TRUE;
207 
208     while (Status == AE_CTRL_TRUE)
209     {
210         /* Notify the completion of the command */
211 
212         Status = AcpiOsNotifyCommandComplete ();
213         if (ACPI_FAILURE (Status))
214         {
215             goto ErrorExit;
216         }
217 
218         /* Wait the readiness of the command */
219 
220         Status = AcpiOsWaitCommandReady ();
221         if (ACPI_FAILURE (Status))
222         {
223             goto ErrorExit;
224         }
225 
226         Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, WalkState, Op);
227     }
228 
229     /* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */
230 
231 ErrorExit:
232     if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
233     {
234         ACPI_EXCEPTION ((AE_INFO, Status,
235             "While parsing/handling command line"));
236     }
237     return (Status);
238 }
239 
240 
241 /*******************************************************************************
242  *
243  * FUNCTION:    AcpiDbSignalBreakPoint
244  *
245  * PARAMETERS:  WalkState       - Current walk
246  *
247  * RETURN:      Status
248  *
249  * DESCRIPTION: Called for AML_BREAKPOINT_OP
250  *
251  ******************************************************************************/
252 
253 void
254 AcpiDbSignalBreakPoint (
255     ACPI_WALK_STATE         *WalkState)
256 {
257 
258 #ifndef ACPI_APPLICATION
259     if (AcpiGbl_DbThreadId != AcpiOsGetThreadId ())
260     {
261         return;
262     }
263 #endif
264 
265     /*
266      * Set the single-step flag. This will cause the debugger (if present)
267      * to break to the console within the AML debugger at the start of the
268      * next AML instruction.
269      */
270     AcpiGbl_CmSingleStep = TRUE;
271     AcpiOsPrintf ("**break** Executed AML BreakPoint opcode\n");
272 }
273 
274 
275 /*******************************************************************************
276  *
277  * FUNCTION:    AcpiDbSingleStep
278  *
279  * PARAMETERS:  WalkState       - Current walk
280  *              Op              - Current executing op (from aml interpreter)
281  *              OpcodeClass     - Class of the current AML Opcode
282  *
283  * RETURN:      Status
284  *
285  * DESCRIPTION: Called just before execution of an AML opcode.
286  *
287  ******************************************************************************/
288 
289 ACPI_STATUS
290 AcpiDbSingleStep (
291     ACPI_WALK_STATE         *WalkState,
292     ACPI_PARSE_OBJECT       *Op,
293     UINT32                  OpcodeClass)
294 {
295     ACPI_PARSE_OBJECT       *Next;
296     ACPI_STATUS             Status = AE_OK;
297     UINT32                  OriginalDebugLevel;
298     ACPI_PARSE_OBJECT       *DisplayOp;
299     ACPI_PARSE_OBJECT       *ParentOp;
300     UINT32                  AmlOffset;
301 
302 
303     ACPI_FUNCTION_ENTRY ();
304 
305 
306 #ifndef ACPI_APPLICATION
307     if (AcpiGbl_DbThreadId != AcpiOsGetThreadId ())
308     {
309         return (AE_OK);
310     }
311 #endif
312 
313     /* Check the abort flag */
314 
315     if (AcpiGbl_AbortMethod)
316     {
317         AcpiGbl_AbortMethod = FALSE;
318         return (AE_ABORT_METHOD);
319     }
320 
321     AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml,
322         WalkState->ParserState.AmlStart);
323 
324     /* Check for single-step breakpoint */
325 
326     if (WalkState->MethodBreakpoint &&
327        (WalkState->MethodBreakpoint <= AmlOffset))
328     {
329         /* Check if the breakpoint has been reached or passed */
330         /* Hit the breakpoint, resume single step, reset breakpoint */
331 
332         AcpiOsPrintf ("***Break*** at AML offset %X\n", AmlOffset);
333         AcpiGbl_CmSingleStep = TRUE;
334         AcpiGbl_StepToNextCall = FALSE;
335         WalkState->MethodBreakpoint = 0;
336     }
337 
338     /* Check for user breakpoint (Must be on exact Aml offset) */
339 
340     else if (WalkState->UserBreakpoint &&
341             (WalkState->UserBreakpoint == AmlOffset))
342     {
343         AcpiOsPrintf ("***UserBreakpoint*** at AML offset %X\n",
344             AmlOffset);
345         AcpiGbl_CmSingleStep = TRUE;
346         AcpiGbl_StepToNextCall = FALSE;
347         WalkState->MethodBreakpoint = 0;
348     }
349 
350     /*
351      * Check if this is an opcode that we are interested in --
352      * namely, opcodes that have arguments
353      */
354     if (Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
355     {
356         return (AE_OK);
357     }
358 
359     switch (OpcodeClass)
360     {
361     case AML_CLASS_UNKNOWN:
362     case AML_CLASS_ARGUMENT:    /* constants, literals, etc. do nothing */
363 
364         return (AE_OK);
365 
366     default:
367 
368         /* All other opcodes -- continue */
369         break;
370     }
371 
372     /*
373      * Under certain debug conditions, display this opcode and its operands
374      */
375     if ((AcpiGbl_DbOutputToFile)            ||
376         (AcpiGbl_CmSingleStep)              ||
377         (AcpiDbgLevel & ACPI_LV_PARSE))
378     {
379         if ((AcpiGbl_DbOutputToFile)        ||
380             (AcpiDbgLevel & ACPI_LV_PARSE))
381         {
382             AcpiOsPrintf ("\nAML Debug: Next AML Opcode to execute:\n");
383         }
384 
385         /*
386          * Display this op (and only this op - zero out the NEXT field
387          * temporarily, and disable parser trace output for the duration of
388          * the display because we don't want the extraneous debug output)
389          */
390         OriginalDebugLevel = AcpiDbgLevel;
391         AcpiDbgLevel &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
392         Next = Op->Common.Next;
393         Op->Common.Next = NULL;
394 
395 
396         DisplayOp = Op;
397         ParentOp = Op->Common.Parent;
398         if (ParentOp)
399         {
400             if ((WalkState->ControlState) &&
401                 (WalkState->ControlState->Common.State ==
402                     ACPI_CONTROL_PREDICATE_EXECUTING))
403             {
404                 /*
405                  * We are executing the predicate of an IF or WHILE statement
406                  * Search upwards for the containing IF or WHILE so that the
407                  * entire predicate can be displayed.
408                  */
409                 while (ParentOp)
410                 {
411                     if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
412                         (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
413                     {
414                         DisplayOp = ParentOp;
415                         break;
416                     }
417                     ParentOp = ParentOp->Common.Parent;
418                 }
419             }
420             else
421             {
422                 while (ParentOp)
423                 {
424                     if ((ParentOp->Common.AmlOpcode == AML_IF_OP)     ||
425                         (ParentOp->Common.AmlOpcode == AML_ELSE_OP)   ||
426                         (ParentOp->Common.AmlOpcode == AML_SCOPE_OP)  ||
427                         (ParentOp->Common.AmlOpcode == AML_METHOD_OP) ||
428                         (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
429                     {
430                         break;
431                     }
432                     DisplayOp = ParentOp;
433                     ParentOp = ParentOp->Common.Parent;
434                 }
435             }
436         }
437 
438         /* Now we can display it */
439 
440 #ifdef ACPI_DISASSEMBLER
441         AcpiDmDisassemble (WalkState, DisplayOp, ACPI_UINT32_MAX);
442 #endif
443 
444         if ((Op->Common.AmlOpcode == AML_IF_OP) ||
445             (Op->Common.AmlOpcode == AML_WHILE_OP))
446         {
447             if (WalkState->ControlState->Common.Value)
448             {
449                 AcpiOsPrintf ("Predicate = [True], IF block was executed\n");
450             }
451             else
452             {
453                 AcpiOsPrintf ("Predicate = [False], Skipping IF block\n");
454             }
455         }
456         else if (Op->Common.AmlOpcode == AML_ELSE_OP)
457         {
458             AcpiOsPrintf ("Predicate = [False], ELSE block was executed\n");
459         }
460 
461         /* Restore everything */
462 
463         Op->Common.Next = Next;
464         AcpiOsPrintf ("\n");
465         if ((AcpiGbl_DbOutputToFile)        ||
466             (AcpiDbgLevel & ACPI_LV_PARSE))
467         {
468             AcpiOsPrintf ("\n");
469         }
470         AcpiDbgLevel = OriginalDebugLevel;
471     }
472 
473     /* If we are not single stepping, just continue executing the method */
474 
475     if (!AcpiGbl_CmSingleStep)
476     {
477         return (AE_OK);
478     }
479 
480     /*
481      * If we are executing a step-to-call command,
482      * Check if this is a method call.
483      */
484     if (AcpiGbl_StepToNextCall)
485     {
486         if (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)
487         {
488             /* Not a method call, just keep executing */
489 
490             return (AE_OK);
491         }
492 
493         /* Found a method call, stop executing */
494 
495         AcpiGbl_StepToNextCall = FALSE;
496     }
497 
498     /*
499      * If the next opcode is a method call, we will "step over" it
500      * by default.
501      */
502     if (Op->Common.AmlOpcode == AML_INT_METHODCALL_OP)
503     {
504         /* Force no more single stepping while executing called method */
505 
506         AcpiGbl_CmSingleStep = FALSE;
507 
508         /*
509          * Set the breakpoint on/before the call, it will stop execution
510          * as soon as we return
511          */
512         WalkState->MethodBreakpoint = 1;  /* Must be non-zero! */
513     }
514 
515 
516     AcpiExExitInterpreter ();
517     Status = AcpiDbStartCommand (WalkState, Op);
518     AcpiExEnterInterpreter ();
519 
520     /* User commands complete, continue execution of the interrupted method */
521 
522     return (Status);
523 }
524 
525 
526 /*******************************************************************************
527  *
528  * FUNCTION:    AcpiInitializeDebugger
529  *
530  * PARAMETERS:  None
531  *
532  * RETURN:      Status
533  *
534  * DESCRIPTION: Init and start debugger
535  *
536  ******************************************************************************/
537 
538 ACPI_STATUS
539 AcpiInitializeDebugger (
540     void)
541 {
542     ACPI_STATUS             Status;
543 
544 
545     ACPI_FUNCTION_TRACE (AcpiInitializeDebugger);
546 
547 
548     /* Init globals */
549 
550     AcpiGbl_DbBuffer            = NULL;
551     AcpiGbl_DbFilename          = NULL;
552     AcpiGbl_DbOutputToFile      = FALSE;
553 
554     AcpiGbl_DbDebugLevel        = ACPI_LV_VERBOSITY2;
555     AcpiGbl_DbConsoleDebugLevel = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
556     AcpiGbl_DbOutputFlags       = ACPI_DB_CONSOLE_OUTPUT;
557 
558     AcpiGbl_DbOpt_NoIniMethods  = FALSE;
559 
560     AcpiGbl_DbBuffer = AcpiOsAllocate (ACPI_DEBUG_BUFFER_SIZE);
561     if (!AcpiGbl_DbBuffer)
562     {
563         return_ACPI_STATUS (AE_NO_MEMORY);
564     }
565     memset (AcpiGbl_DbBuffer, 0, ACPI_DEBUG_BUFFER_SIZE);
566 
567     /* Initial scope is the root */
568 
569     AcpiGbl_DbScopeBuf [0] = AML_ROOT_PREFIX;
570     AcpiGbl_DbScopeBuf [1] =  0;
571     AcpiGbl_DbScopeNode = AcpiGbl_RootNode;
572 
573     /* Initialize user commands loop */
574 
575     AcpiGbl_DbTerminateLoop = FALSE;
576 
577     /*
578      * If configured for multi-thread support, the debug executor runs in
579      * a separate thread so that the front end can be in another address
580      * space, environment, or even another machine.
581      */
582     if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
583     {
584         /* These were created with one unit, grab it */
585 
586         Status = AcpiOsInitializeDebugger ();
587         if (ACPI_FAILURE (Status))
588         {
589             AcpiOsPrintf ("Could not get debugger mutex\n");
590             return_ACPI_STATUS (Status);
591         }
592 
593         /* Create the debug execution thread to execute commands */
594 
595         AcpiGbl_DbThreadsTerminated = FALSE;
596         Status = AcpiOsExecute (OSL_DEBUGGER_MAIN_THREAD,
597             AcpiDbExecuteThread, NULL);
598         if (ACPI_FAILURE (Status))
599         {
600             ACPI_EXCEPTION ((AE_INFO, Status,
601                 "Could not start debugger thread"));
602             AcpiGbl_DbThreadsTerminated = TRUE;
603             return_ACPI_STATUS (Status);
604         }
605     }
606     else
607     {
608         AcpiGbl_DbThreadId = AcpiOsGetThreadId ();
609     }
610 
611     return_ACPI_STATUS (AE_OK);
612 }
613 
614 ACPI_EXPORT_SYMBOL (AcpiInitializeDebugger)
615 
616 
617 /*******************************************************************************
618  *
619  * FUNCTION:    AcpiTerminateDebugger
620  *
621  * PARAMETERS:  None
622  *
623  * RETURN:      None
624  *
625  * DESCRIPTION: Stop debugger
626  *
627  ******************************************************************************/
628 
629 void
630 AcpiTerminateDebugger (
631     void)
632 {
633 
634     /* Terminate the AML Debugger */
635 
636     AcpiGbl_DbTerminateLoop = TRUE;
637 
638     if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
639     {
640         /* Wait the AML Debugger threads */
641 
642         while (!AcpiGbl_DbThreadsTerminated)
643         {
644             AcpiOsSleep (100);
645         }
646 
647         AcpiOsTerminateDebugger ();
648     }
649 
650     if (AcpiGbl_DbBuffer)
651     {
652         AcpiOsFree (AcpiGbl_DbBuffer);
653         AcpiGbl_DbBuffer = NULL;
654     }
655 
656     /* Ensure that debug output is now disabled */
657 
658     AcpiGbl_DbOutputFlags = ACPI_DB_DISABLE_OUTPUT;
659 }
660 
661 ACPI_EXPORT_SYMBOL (AcpiTerminateDebugger)
662 
663 
664 /*******************************************************************************
665  *
666  * FUNCTION:    AcpiSetDebuggerThreadId
667  *
668  * PARAMETERS:  ThreadId        - Debugger thread ID
669  *
670  * RETURN:      None
671  *
672  * DESCRIPTION: Set debugger thread ID
673  *
674  ******************************************************************************/
675 
676 void
677 AcpiSetDebuggerThreadId (
678     ACPI_THREAD_ID          ThreadId)
679 {
680     AcpiGbl_DbThreadId = ThreadId;
681 }
682 
683 ACPI_EXPORT_SYMBOL (AcpiSetDebuggerThreadId)
684