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 - 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 "acpi.h"
153 #include "accommon.h"
154 #include "amlcode.h"
155 #include "acdebug.h"
156 #include "acinterp.h"
157 #include "acparser.h"
158
159
160 #define _COMPONENT ACPI_CA_DEBUGGER
161 ACPI_MODULE_NAME ("dbxface")
162
163
164 /* Local prototypes */
165
166 static ACPI_STATUS
167 AcpiDbStartCommand (
168 ACPI_WALK_STATE *WalkState,
169 ACPI_PARSE_OBJECT *Op);
170
171 #ifdef ACPI_OBSOLETE_FUNCTIONS
172 void
173 AcpiDbMethodEnd (
174 ACPI_WALK_STATE *WalkState);
175 #endif
176
177 #ifdef ACPI_DISASSEMBLER
178 static ACPI_PARSE_OBJECT *
179 AcpiDbGetDisplayOp (
180 ACPI_WALK_STATE *WalkState,
181 ACPI_PARSE_OBJECT *Op);
182 #endif
183
184 /*******************************************************************************
185 *
186 * FUNCTION: AcpiDbStartCommand
187 *
188 * PARAMETERS: WalkState - Current walk
189 * Op - Current executing Op, from AML interpreter
190 *
191 * RETURN: Status
192 *
193 * DESCRIPTION: Enter debugger command loop
194 *
195 ******************************************************************************/
196
197 static ACPI_STATUS
AcpiDbStartCommand(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op)198 AcpiDbStartCommand (
199 ACPI_WALK_STATE *WalkState,
200 ACPI_PARSE_OBJECT *Op)
201 {
202 ACPI_STATUS Status;
203
204
205 /* TBD: [Investigate] are there namespace locking issues here? */
206
207 /* AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); */
208
209 /* Go into the command loop and await next user command */
210
211
212 AcpiGbl_MethodExecuting = TRUE;
213 Status = AE_CTRL_TRUE;
214
215 while (Status == AE_CTRL_TRUE)
216 {
217 /* Notify the completion of the command */
218
219 Status = AcpiOsNotifyCommandComplete ();
220 if (ACPI_FAILURE (Status))
221 {
222 goto ErrorExit;
223 }
224
225 /* Wait the readiness of the command */
226
227 Status = AcpiOsWaitCommandReady ();
228 if (ACPI_FAILURE (Status))
229 {
230 goto ErrorExit;
231 }
232
233 Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, WalkState, Op);
234 }
235
236 /* AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); */
237
238 ErrorExit:
239 if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
240 {
241 ACPI_EXCEPTION ((AE_INFO, Status,
242 "While parsing/handling command line"));
243 }
244 return (Status);
245 }
246
247
248 /*******************************************************************************
249 *
250 * FUNCTION: AcpiDbSignalBreakPoint
251 *
252 * PARAMETERS: WalkState - Current walk
253 *
254 * RETURN: Status
255 *
256 * DESCRIPTION: Called for AML_BREAKPOINT_OP
257 *
258 ******************************************************************************/
259
260 void
AcpiDbSignalBreakPoint(ACPI_WALK_STATE * WalkState)261 AcpiDbSignalBreakPoint (
262 ACPI_WALK_STATE *WalkState)
263 {
264
265 #ifndef ACPI_APPLICATION
266 if (AcpiGbl_DbThreadId != AcpiOsGetThreadId ())
267 {
268 return;
269 }
270 #endif
271
272 /*
273 * Set the single-step flag. This will cause the debugger (if present)
274 * to break to the console within the AML debugger at the start of the
275 * next AML instruction.
276 */
277 AcpiGbl_CmSingleStep = TRUE;
278 AcpiOsPrintf ("**break** Executed AML BreakPoint opcode\n");
279 }
280
281
282 #ifdef ACPI_DISASSEMBLER
283 /*******************************************************************************
284 *
285 * FUNCTION: AcpiDbGetDisplayOp
286 *
287 * PARAMETERS: WalkState - Current walk
288 * Op - Current executing op (from aml interpreter)
289 *
290 * RETURN: Opcode to display
291 *
292 * DESCRIPTION: Find the opcode to display during single stepping
293 *
294 ******************************************************************************/
295
296 static ACPI_PARSE_OBJECT *
AcpiDbGetDisplayOp(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op)297 AcpiDbGetDisplayOp (
298 ACPI_WALK_STATE *WalkState,
299 ACPI_PARSE_OBJECT *Op)
300 {
301 ACPI_PARSE_OBJECT *DisplayOp;
302 ACPI_PARSE_OBJECT *ParentOp;
303
304 DisplayOp = Op;
305 ParentOp = Op->Common.Parent;
306 if (ParentOp)
307 {
308 if ((WalkState->ControlState) &&
309 (WalkState->ControlState->Common.State ==
310 ACPI_CONTROL_PREDICATE_EXECUTING))
311 {
312 /*
313 * We are executing the predicate of an IF or WHILE statement
314 * Search upwards for the containing IF or WHILE so that the
315 * entire predicate can be displayed.
316 */
317 while (ParentOp)
318 {
319 if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
320 (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
321 {
322 DisplayOp = ParentOp;
323 break;
324 }
325 ParentOp = ParentOp->Common.Parent;
326 }
327 }
328 else
329 {
330 while (ParentOp)
331 {
332 if ((ParentOp->Common.AmlOpcode == AML_IF_OP) ||
333 (ParentOp->Common.AmlOpcode == AML_ELSE_OP) ||
334 (ParentOp->Common.AmlOpcode == AML_SCOPE_OP) ||
335 (ParentOp->Common.AmlOpcode == AML_METHOD_OP) ||
336 (ParentOp->Common.AmlOpcode == AML_WHILE_OP))
337 {
338 break;
339 }
340 DisplayOp = ParentOp;
341 ParentOp = ParentOp->Common.Parent;
342 }
343 }
344 }
345 return DisplayOp;
346 }
347 #endif
348
349
350 /*******************************************************************************
351 *
352 * FUNCTION: AcpiDbSingleStep
353 *
354 * PARAMETERS: WalkState - Current walk
355 * Op - Current executing op (from aml interpreter)
356 * OpcodeClass - Class of the current AML Opcode
357 *
358 * RETURN: Status
359 *
360 * DESCRIPTION: Called just before execution of an AML opcode.
361 *
362 ******************************************************************************/
363
364 ACPI_STATUS
AcpiDbSingleStep(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT32 OpcodeClass)365 AcpiDbSingleStep (
366 ACPI_WALK_STATE *WalkState,
367 ACPI_PARSE_OBJECT *Op,
368 UINT32 OpcodeClass)
369 {
370 ACPI_PARSE_OBJECT *Next;
371 ACPI_STATUS Status = AE_OK;
372 UINT32 OriginalDebugLevel;
373 UINT32 AmlOffset;
374
375
376 ACPI_FUNCTION_ENTRY ();
377
378
379 #ifndef ACPI_APPLICATION
380 if (AcpiGbl_DbThreadId != AcpiOsGetThreadId ())
381 {
382 return (AE_OK);
383 }
384 #endif
385
386 /* Check the abort flag */
387
388 if (AcpiGbl_AbortMethod)
389 {
390 AcpiGbl_AbortMethod = FALSE;
391 return (AE_ABORT_METHOD);
392 }
393
394 AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml,
395 WalkState->ParserState.AmlStart);
396
397 /* Check for single-step breakpoint */
398
399 if (WalkState->MethodBreakpoint &&
400 (WalkState->MethodBreakpoint <= AmlOffset))
401 {
402 /* Check if the breakpoint has been reached or passed */
403 /* Hit the breakpoint, resume single step, reset breakpoint */
404
405 AcpiOsPrintf ("***Break*** at AML offset %X\n", AmlOffset);
406 AcpiGbl_CmSingleStep = TRUE;
407 AcpiGbl_StepToNextCall = FALSE;
408 WalkState->MethodBreakpoint = 0;
409 }
410
411 /* Check for user breakpoint (Must be on exact Aml offset) */
412
413 else if (WalkState->UserBreakpoint &&
414 (WalkState->UserBreakpoint == AmlOffset))
415 {
416 AcpiOsPrintf ("***UserBreakpoint*** at AML offset %X\n",
417 AmlOffset);
418 AcpiGbl_CmSingleStep = TRUE;
419 AcpiGbl_StepToNextCall = FALSE;
420 WalkState->MethodBreakpoint = 0;
421 }
422
423 /*
424 * Check if this is an opcode that we are interested in --
425 * namely, opcodes that have arguments
426 */
427 if (Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
428 {
429 return (AE_OK);
430 }
431
432 switch (OpcodeClass)
433 {
434 case AML_CLASS_UNKNOWN:
435 case AML_CLASS_ARGUMENT: /* constants, literals, etc. do nothing */
436
437 return (AE_OK);
438
439 default:
440
441 /* All other opcodes -- continue */
442 break;
443 }
444
445 /*
446 * Under certain debug conditions, display this opcode and its operands
447 */
448 if ((AcpiGbl_DbOutputToFile) ||
449 (AcpiGbl_CmSingleStep) ||
450 (AcpiDbgLevel & ACPI_LV_PARSE))
451 {
452 if ((AcpiGbl_DbOutputToFile) ||
453 (AcpiDbgLevel & ACPI_LV_PARSE))
454 {
455 AcpiOsPrintf ("\nAML Debug: Next AML Opcode to execute:\n");
456 }
457
458 /*
459 * Display this op (and only this op - zero out the NEXT field
460 * temporarily, and disable parser trace output for the duration of
461 * the display because we don't want the extraneous debug output)
462 */
463 OriginalDebugLevel = AcpiDbgLevel;
464 AcpiDbgLevel &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
465 Next = Op->Common.Next;
466 Op->Common.Next = NULL;
467
468 /* Now we can disassemble and display it */
469
470 #ifdef ACPI_DISASSEMBLER
471 AcpiDmDisassemble (WalkState, AcpiDbGetDisplayOp (WalkState, Op),
472 ACPI_UINT32_MAX);
473 #else
474 /*
475 * The AML Disassembler is not configured - at least we can
476 * display the opcode value and name
477 */
478 AcpiOsPrintf ("AML Opcode: %4.4X %s\n", Op->Common.AmlOpcode,
479 AcpiPsGetOpcodeName (Op->Common.AmlOpcode));
480 #endif
481
482 if ((Op->Common.AmlOpcode == AML_IF_OP) ||
483 (Op->Common.AmlOpcode == AML_WHILE_OP))
484 {
485 if (WalkState->ControlState->Common.Value)
486 {
487 AcpiOsPrintf ("Predicate = [True], IF block was executed\n");
488 }
489 else
490 {
491 AcpiOsPrintf ("Predicate = [False], Skipping IF block\n");
492 }
493 }
494 else if (Op->Common.AmlOpcode == AML_ELSE_OP)
495 {
496 AcpiOsPrintf ("Predicate = [False], ELSE block was executed\n");
497 }
498
499 /* Restore everything */
500
501 Op->Common.Next = Next;
502 AcpiOsPrintf ("\n");
503 if ((AcpiGbl_DbOutputToFile) ||
504 (AcpiDbgLevel & ACPI_LV_PARSE))
505 {
506 AcpiOsPrintf ("\n");
507 }
508 AcpiDbgLevel = OriginalDebugLevel;
509 }
510
511 /* If we are not single stepping, just continue executing the method */
512
513 if (!AcpiGbl_CmSingleStep)
514 {
515 return (AE_OK);
516 }
517
518 /*
519 * If we are executing a step-to-call command,
520 * Check if this is a method call.
521 */
522 if (AcpiGbl_StepToNextCall)
523 {
524 if (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)
525 {
526 /* Not a method call, just keep executing */
527
528 return (AE_OK);
529 }
530
531 /* Found a method call, stop executing */
532
533 AcpiGbl_StepToNextCall = FALSE;
534 }
535
536 /*
537 * If the next opcode is a method call, we will "step over" it
538 * by default.
539 */
540 if (Op->Common.AmlOpcode == AML_INT_METHODCALL_OP)
541 {
542 /* Force no more single stepping while executing called method */
543
544 AcpiGbl_CmSingleStep = FALSE;
545
546 /*
547 * Set the breakpoint on/before the call, it will stop execution
548 * as soon as we return
549 */
550 WalkState->MethodBreakpoint = 1; /* Must be non-zero! */
551 }
552
553
554 AcpiExExitInterpreter ();
555 Status = AcpiDbStartCommand (WalkState, Op);
556 AcpiExEnterInterpreter ();
557
558 /* User commands complete, continue execution of the interrupted method */
559
560 return (Status);
561 }
562
563
564 /*******************************************************************************
565 *
566 * FUNCTION: AcpiInitializeDebugger
567 *
568 * PARAMETERS: None
569 *
570 * RETURN: Status
571 *
572 * DESCRIPTION: Init and start debugger
573 *
574 ******************************************************************************/
575
576 ACPI_STATUS
AcpiInitializeDebugger(void)577 AcpiInitializeDebugger (
578 void)
579 {
580 ACPI_STATUS Status;
581
582
583 ACPI_FUNCTION_TRACE (AcpiInitializeDebugger);
584
585
586 /* Init globals */
587
588 AcpiGbl_DbBuffer = NULL;
589 AcpiGbl_DbFilename = NULL;
590 AcpiGbl_DbOutputToFile = FALSE;
591
592 AcpiGbl_DbDebugLevel = ACPI_LV_VERBOSITY2;
593 AcpiGbl_DbConsoleDebugLevel = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
594 AcpiGbl_DbOutputFlags = ACPI_DB_CONSOLE_OUTPUT;
595
596 AcpiGbl_DbOpt_NoIniMethods = FALSE;
597 AcpiGbl_DbOpt_NoRegionSupport = FALSE;
598
599 AcpiGbl_DbBuffer = AcpiOsAllocate (ACPI_DEBUG_BUFFER_SIZE);
600 if (!AcpiGbl_DbBuffer)
601 {
602 return_ACPI_STATUS (AE_NO_MEMORY);
603 }
604 memset (AcpiGbl_DbBuffer, 0, ACPI_DEBUG_BUFFER_SIZE);
605
606 /* Initial scope is the root */
607
608 AcpiGbl_DbScopeBuf [0] = AML_ROOT_PREFIX;
609 AcpiGbl_DbScopeBuf [1] = 0;
610 AcpiGbl_DbScopeNode = AcpiGbl_RootNode;
611
612 /* Initialize user commands loop */
613
614 AcpiGbl_DbTerminateLoop = FALSE;
615
616 /*
617 * If configured for multi-thread support, the debug executor runs in
618 * a separate thread so that the front end can be in another address
619 * space, environment, or even another machine.
620 */
621 if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
622 {
623 /* These were created with one unit, grab it */
624
625 Status = AcpiOsInitializeDebugger ();
626 if (ACPI_FAILURE (Status))
627 {
628 AcpiOsPrintf ("Could not get debugger mutex\n");
629 return_ACPI_STATUS (Status);
630 }
631
632 /* Create the debug execution thread to execute commands */
633
634 AcpiGbl_DbThreadsTerminated = FALSE;
635 Status = AcpiOsExecute (OSL_DEBUGGER_MAIN_THREAD,
636 AcpiDbExecuteThread, NULL);
637 if (ACPI_FAILURE (Status))
638 {
639 ACPI_EXCEPTION ((AE_INFO, Status,
640 "Could not start debugger thread"));
641 AcpiGbl_DbThreadsTerminated = TRUE;
642 return_ACPI_STATUS (Status);
643 }
644 }
645 else
646 {
647 AcpiGbl_DbThreadId = AcpiOsGetThreadId ();
648 }
649
650 return_ACPI_STATUS (AE_OK);
651 }
652
ACPI_EXPORT_SYMBOL(AcpiInitializeDebugger)653 ACPI_EXPORT_SYMBOL (AcpiInitializeDebugger)
654
655
656 /*******************************************************************************
657 *
658 * FUNCTION: AcpiTerminateDebugger
659 *
660 * PARAMETERS: None
661 *
662 * RETURN: None
663 *
664 * DESCRIPTION: Stop debugger
665 *
666 ******************************************************************************/
667
668 void
669 AcpiTerminateDebugger (
670 void)
671 {
672
673 /* Terminate the AML Debugger */
674
675 AcpiGbl_DbTerminateLoop = TRUE;
676
677 if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
678 {
679 /* Wait the AML Debugger threads */
680
681 while (!AcpiGbl_DbThreadsTerminated)
682 {
683 AcpiOsSleep (100);
684 }
685
686 AcpiOsTerminateDebugger ();
687 }
688
689 if (AcpiGbl_DbBuffer)
690 {
691 AcpiOsFree (AcpiGbl_DbBuffer);
692 AcpiGbl_DbBuffer = NULL;
693 }
694
695 /* Ensure that debug output is now disabled */
696
697 AcpiGbl_DbOutputFlags = ACPI_DB_DISABLE_OUTPUT;
698 }
699
ACPI_EXPORT_SYMBOL(AcpiTerminateDebugger)700 ACPI_EXPORT_SYMBOL (AcpiTerminateDebugger)
701
702
703 /*******************************************************************************
704 *
705 * FUNCTION: AcpiSetDebuggerThreadId
706 *
707 * PARAMETERS: ThreadId - Debugger thread ID
708 *
709 * RETURN: None
710 *
711 * DESCRIPTION: Set debugger thread ID
712 *
713 ******************************************************************************/
714
715 void
716 AcpiSetDebuggerThreadId (
717 ACPI_THREAD_ID ThreadId)
718 {
719 AcpiGbl_DbThreadId = ThreadId;
720 }
721
722 ACPI_EXPORT_SYMBOL (AcpiSetDebuggerThreadId)
723
