1 /*******************************************************************************
2 *
3 * Module Name: dbexec - debugger control method execution
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, 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 MERCHANTIBILITY 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
45 #include "acpi.h"
46 #include "accommon.h"
47 #include "acdebug.h"
48 #include "acnamesp.h"
49
50 #ifdef ACPI_DEBUGGER
51
52 #define _COMPONENT ACPI_CA_DEBUGGER
53 ACPI_MODULE_NAME ("dbexec")
54
55
56 static ACPI_DB_METHOD_INFO AcpiGbl_DbMethodInfo;
57
58 /* Local prototypes */
59
60 static ACPI_STATUS
61 AcpiDbExecuteMethod (
62 ACPI_DB_METHOD_INFO *Info,
63 ACPI_BUFFER *ReturnObj);
64
65 static ACPI_STATUS
66 AcpiDbExecuteSetup (
67 ACPI_DB_METHOD_INFO *Info);
68
69 static UINT32
70 AcpiDbGetOutstandingAllocations (
71 void);
72
73 static void ACPI_SYSTEM_XFACE
74 AcpiDbMethodThread (
75 void *Context);
76
77 static ACPI_STATUS
78 AcpiDbExecutionWalk (
79 ACPI_HANDLE ObjHandle,
80 UINT32 NestingLevel,
81 void *Context,
82 void **ReturnValue);
83
84
85 /*******************************************************************************
86 *
87 * FUNCTION: AcpiDbDeleteObjects
88 *
89 * PARAMETERS: Count - Count of objects in the list
90 * Objects - Array of ACPI_OBJECTs to be deleted
91 *
92 * RETURN: None
93 *
94 * DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested
95 * packages via recursion.
96 *
97 ******************************************************************************/
98
99 void
100 AcpiDbDeleteObjects (
101 UINT32 Count,
102 ACPI_OBJECT *Objects)
103 {
104 UINT32 i;
105
106
107 for (i = 0; i < Count; i++)
108 {
109 switch (Objects[i].Type)
110 {
111 case ACPI_TYPE_BUFFER:
112
113 ACPI_FREE (Objects[i].Buffer.Pointer);
114 break;
115
116 case ACPI_TYPE_PACKAGE:
117
118 /* Recursive call to delete package elements */
119
120 AcpiDbDeleteObjects (Objects[i].Package.Count,
121 Objects[i].Package.Elements);
122
123 /* Free the elements array */
124
125 ACPI_FREE (Objects[i].Package.Elements);
126 break;
127
128 default:
129
130 break;
131 }
132 }
133 }
134
135
136 /*******************************************************************************
137 *
138 * FUNCTION: AcpiDbExecuteMethod
139 *
140 * PARAMETERS: Info - Valid info segment
141 * ReturnObj - Where to put return object
142 *
143 * RETURN: Status
144 *
145 * DESCRIPTION: Execute a control method.
146 *
147 ******************************************************************************/
148
149 static ACPI_STATUS
150 AcpiDbExecuteMethod (
151 ACPI_DB_METHOD_INFO *Info,
152 ACPI_BUFFER *ReturnObj)
153 {
154 ACPI_STATUS Status;
155 ACPI_OBJECT_LIST ParamObjects;
156 ACPI_OBJECT Params[ACPI_DEBUGGER_MAX_ARGS + 1];
157 UINT32 i;
158
159
160 ACPI_FUNCTION_TRACE (DbExecuteMethod);
161
162
163 if (AcpiGbl_DbOutputToFile && !AcpiDbgLevel)
164 {
165 AcpiOsPrintf ("Warning: debug output is not enabled!\n");
166 }
167
168 ParamObjects.Count = 0;
169 ParamObjects.Pointer = NULL;
170
171 /* Pass through any command-line arguments */
172
173 if (Info->Args && Info->Args[0])
174 {
175 /* Get arguments passed on the command line */
176
177 for (i = 0; (Info->Args[i] && *(Info->Args[i])); i++)
178 {
179 /* Convert input string (token) to an actual ACPI_OBJECT */
180
181 Status = AcpiDbConvertToObject (Info->Types[i],
182 Info->Args[i], &Params[i]);
183 if (ACPI_FAILURE (Status))
184 {
185 ACPI_EXCEPTION ((AE_INFO, Status,
186 "While parsing method arguments"));
187 goto Cleanup;
188 }
189 }
190
191 ParamObjects.Count = i;
192 ParamObjects.Pointer = Params;
193 }
194
195 /* Prepare for a return object of arbitrary size */
196
197 ReturnObj->Pointer = AcpiGbl_DbBuffer;
198 ReturnObj->Length = ACPI_DEBUG_BUFFER_SIZE;
199
200 /* Do the actual method execution */
201
202 AcpiGbl_MethodExecuting = TRUE;
203 Status = AcpiEvaluateObject (NULL, Info->Pathname,
204 &ParamObjects, ReturnObj);
205
206 AcpiGbl_CmSingleStep = FALSE;
207 AcpiGbl_MethodExecuting = FALSE;
208
209 if (ACPI_FAILURE (Status))
210 {
211 ACPI_EXCEPTION ((AE_INFO, Status,
212 "while executing %s from debugger", Info->Pathname));
213
214 if (Status == AE_BUFFER_OVERFLOW)
215 {
216 ACPI_ERROR ((AE_INFO,
217 "Possible overflow of internal debugger buffer (size 0x%X needed 0x%X)",
218 ACPI_DEBUG_BUFFER_SIZE, (UINT32) ReturnObj->Length));
219 }
220 }
221
222 Cleanup:
223 AcpiDbDeleteObjects (ParamObjects.Count, Params);
224 return_ACPI_STATUS (Status);
225 }
226
227
228 /*******************************************************************************
229 *
230 * FUNCTION: AcpiDbExecuteSetup
231 *
232 * PARAMETERS: Info - Valid method info
233 *
234 * RETURN: None
235 *
236 * DESCRIPTION: Setup info segment prior to method execution
237 *
238 ******************************************************************************/
239
240 static ACPI_STATUS
241 AcpiDbExecuteSetup (
242 ACPI_DB_METHOD_INFO *Info)
243 {
244 ACPI_STATUS Status;
245
246
247 ACPI_FUNCTION_NAME (DbExecuteSetup);
248
249
250 /* Catenate the current scope to the supplied name */
251
252 Info->Pathname[0] = 0;
253 if ((Info->Name[0] != '\\') &&
254 (Info->Name[0] != '/'))
255 {
256 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname),
257 AcpiGbl_DbScopeBuf))
258 {
259 Status = AE_BUFFER_OVERFLOW;
260 goto ErrorExit;
261 }
262 }
263
264 if (AcpiUtSafeStrcat (Info->Pathname, sizeof (Info->Pathname),
265 Info->Name))
266 {
267 Status = AE_BUFFER_OVERFLOW;
268 goto ErrorExit;
269 }
270
271 AcpiDbPrepNamestring (Info->Pathname);
272
273 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
274 AcpiOsPrintf ("Evaluating %s\n", Info->Pathname);
275
276 if (Info->Flags & EX_SINGLE_STEP)
277 {
278 AcpiGbl_CmSingleStep = TRUE;
279 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
280 }
281
282 else
283 {
284 /* No single step, allow redirection to a file */
285
286 AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
287 }
288
289 return (AE_OK);
290
291 ErrorExit:
292
293 ACPI_EXCEPTION ((AE_INFO, Status, "During setup for method execution"));
294 return (Status);
295 }
296
297
298 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
299 UINT32
300 AcpiDbGetCacheInfo (
301 ACPI_MEMORY_LIST *Cache)
302 {
303
304 return (Cache->TotalAllocated - Cache->TotalFreed - Cache->CurrentDepth);
305 }
306 #endif
307
308 /*******************************************************************************
309 *
310 * FUNCTION: AcpiDbGetOutstandingAllocations
311 *
312 * PARAMETERS: None
313 *
314 * RETURN: Current global allocation count minus cache entries
315 *
316 * DESCRIPTION: Determine the current number of "outstanding" allocations --
317 * those allocations that have not been freed and also are not
318 * in one of the various object caches.
319 *
320 ******************************************************************************/
321
322 static UINT32
323 AcpiDbGetOutstandingAllocations (
324 void)
325 {
326 UINT32 Outstanding = 0;
327
328 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
329
330 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_StateCache);
331 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeCache);
332 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeExtCache);
333 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_OperandCache);
334 #endif
335
336 return (Outstanding);
337 }
338
339
340 /*******************************************************************************
341 *
342 * FUNCTION: AcpiDbExecutionWalk
343 *
344 * PARAMETERS: WALK_CALLBACK
345 *
346 * RETURN: Status
347 *
348 * DESCRIPTION: Execute a control method. Name is relative to the current
349 * scope.
350 *
351 ******************************************************************************/
352
353 static ACPI_STATUS
354 AcpiDbExecutionWalk (
355 ACPI_HANDLE ObjHandle,
356 UINT32 NestingLevel,
357 void *Context,
358 void **ReturnValue)
359 {
360 ACPI_OPERAND_OBJECT *ObjDesc;
361 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
362 ACPI_BUFFER ReturnObj;
363 ACPI_STATUS Status;
364
365
366 ObjDesc = AcpiNsGetAttachedObject (Node);
367 if (ObjDesc->Method.ParamCount)
368 {
369 return (AE_OK);
370 }
371
372 ReturnObj.Pointer = NULL;
373 ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
374
375 AcpiNsPrintNodePathname (Node, "Evaluating");
376
377 /* Do the actual method execution */
378
379 AcpiOsPrintf ("\n");
380 AcpiGbl_MethodExecuting = TRUE;
381
382 Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj);
383
384 AcpiOsPrintf ("Evaluation of [%4.4s] returned %s\n", AcpiUtGetNodeName (Node),
385 AcpiFormatException (Status));
386 AcpiGbl_MethodExecuting = FALSE;
387
388 return (AE_OK);
389 }
390
391
392 /*******************************************************************************
393 *
394 * FUNCTION: AcpiDbExecute
395 *
396 * PARAMETERS: Name - Name of method to execute
397 * Args - Parameters to the method
398 * Flags - single step/no single step
399 *
400 * RETURN: None
401 *
402 * DESCRIPTION: Execute a control method. Name is relative to the current
403 * scope.
404 *
405 ******************************************************************************/
406
407 void
408 AcpiDbExecute (
409 char *Name,
410 char **Args,
411 ACPI_OBJECT_TYPE *Types,
412 UINT32 Flags)
413 {
414 ACPI_STATUS Status;
415 ACPI_BUFFER ReturnObj;
416 char *NameString;
417
418
419 #ifdef ACPI_DEBUG_OUTPUT
420 UINT32 PreviousAllocations;
421 UINT32 Allocations;
422
423
424 /* Memory allocation tracking */
425
426 PreviousAllocations = AcpiDbGetOutstandingAllocations ();
427 #endif
428
429 if (*Name == '*')
430 {
431 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT,
432 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL);
433 return;
434 }
435 else
436 {
437 NameString = ACPI_ALLOCATE (ACPI_STRLEN (Name) + 1);
438 if (!NameString)
439 {
440 return;
441 }
442
443 ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));
444
445 ACPI_STRCPY (NameString, Name);
446 AcpiUtStrupr (NameString);
447 AcpiGbl_DbMethodInfo.Name = NameString;
448 AcpiGbl_DbMethodInfo.Args = Args;
449 AcpiGbl_DbMethodInfo.Types = Types;
450 AcpiGbl_DbMethodInfo.Flags = Flags;
451
452 ReturnObj.Pointer = NULL;
453 ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
454
455 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
456 if (ACPI_FAILURE (Status))
457 {
458 ACPI_FREE (NameString);
459 return;
460 }
461
462 /* Get the NS node, determines existence also */
463
464 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname,
465 &AcpiGbl_DbMethodInfo.Method);
466 if (ACPI_SUCCESS (Status))
467 {
468 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);
469 }
470 ACPI_FREE (NameString);
471 }
472
473 /*
474 * Allow any handlers in separate threads to complete.
475 * (Such as Notify handlers invoked from AML executed above).
476 */
477 AcpiOsSleep ((UINT64) 10);
478
479 #ifdef ACPI_DEBUG_OUTPUT
480
481 /* Memory allocation tracking */
482
483 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;
484
485 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
486
487 if (Allocations > 0)
488 {
489 AcpiOsPrintf ("0x%X Outstanding allocations after evaluation of %s\n",
490 Allocations, AcpiGbl_DbMethodInfo.Pathname);
491 }
492 #endif
493
494 if (ACPI_FAILURE (Status))
495 {
496 AcpiOsPrintf ("Evaluation of %s failed with status %s\n",
497 AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
498 }
499 else
500 {
501 /* Display a return object, if any */
502
503 if (ReturnObj.Length)
504 {
505 AcpiOsPrintf (
506 "Evaluation of %s returned object %p, external buffer length %X\n",
507 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer,
508 (UINT32) ReturnObj.Length);
509 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1);
510
511 /* Dump a _PLD buffer if present */
512
513 if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE,
514 AcpiGbl_DbMethodInfo.Method)->Name.Ascii), METHOD_NAME__PLD))
515 {
516 AcpiDbDumpPldBuffer (ReturnObj.Pointer);
517 }
518 }
519 else
520 {
521 AcpiOsPrintf ("No object was returned from evaluation of %s\n",
522 AcpiGbl_DbMethodInfo.Pathname);
523 }
524 }
525
526 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
527 }
528
529
530 /*******************************************************************************
531 *
532 * FUNCTION: AcpiDbMethodThread
533 *
534 * PARAMETERS: Context - Execution info segment
535 *
536 * RETURN: None
537 *
538 * DESCRIPTION: Debugger execute thread. Waits for a command line, then
539 * simply dispatches it.
540 *
541 ******************************************************************************/
542
543 static void ACPI_SYSTEM_XFACE
544 AcpiDbMethodThread (
545 void *Context)
546 {
547 ACPI_STATUS Status;
548 ACPI_DB_METHOD_INFO *Info = Context;
549 ACPI_DB_METHOD_INFO LocalInfo;
550 UINT32 i;
551 UINT8 Allow;
552 ACPI_BUFFER ReturnObj;
553
554
555 /*
556 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments.
557 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads
558 * concurrently.
559 *
560 * Note: The arguments we are passing are used by the ASL test suite
561 * (aslts). Do not change them without updating the tests.
562 */
563 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER);
564
565 if (Info->InitArgs)
566 {
567 AcpiDbUint32ToHexString (Info->NumCreated, Info->IndexOfThreadStr);
568 AcpiDbUint32ToHexString ((UINT32) AcpiOsGetThreadId (), Info->IdOfThreadStr);
569 }
570
571 if (Info->Threads && (Info->NumCreated < Info->NumThreads))
572 {
573 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId();
574 }
575
576 LocalInfo = *Info;
577 LocalInfo.Args = LocalInfo.Arguments;
578 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr;
579 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr;
580 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr;
581 LocalInfo.Arguments[3] = NULL;
582
583 LocalInfo.Types = LocalInfo.ArgTypes;
584
585 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1);
586
587 for (i = 0; i < Info->NumLoops; i++)
588 {
589 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj);
590 if (ACPI_FAILURE (Status))
591 {
592 AcpiOsPrintf ("%s During evaluation of %s at iteration %X\n",
593 AcpiFormatException (Status), Info->Pathname, i);
594 if (Status == AE_ABORT_METHOD)
595 {
596 break;
597 }
598 }
599
600 #if 0
601 if ((i % 100) == 0)
602 {
603 AcpiOsPrintf ("%u loops, Thread 0x%x\n", i, AcpiOsGetThreadId ());
604 }
605
606 if (ReturnObj.Length)
607 {
608 AcpiOsPrintf ("Evaluation of %s returned object %p Buflen %X\n",
609 Info->Pathname, ReturnObj.Pointer, (UINT32) ReturnObj.Length);
610 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1);
611 }
612 #endif
613 }
614
615 /* Signal our completion */
616
617 Allow = 0;
618 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 1, ACPI_WAIT_FOREVER);
619 Info->NumCompleted++;
620
621 if (Info->NumCompleted == Info->NumThreads)
622 {
623 /* Do signal for main thread once only */
624 Allow = 1;
625 }
626
627 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1);
628
629 if (Allow)
630 {
631 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1);
632 if (ACPI_FAILURE (Status))
633 {
634 AcpiOsPrintf ("Could not signal debugger thread sync semaphore, %s\n",
635 AcpiFormatException (Status));
636 }
637 }
638 }
639
640
641 /*******************************************************************************
642 *
643 * FUNCTION: AcpiDbCreateExecutionThreads
644 *
645 * PARAMETERS: NumThreadsArg - Number of threads to create
646 * NumLoopsArg - Loop count for the thread(s)
647 * MethodNameArg - Control method to execute
648 *
649 * RETURN: None
650 *
651 * DESCRIPTION: Create threads to execute method(s)
652 *
653 ******************************************************************************/
654
655 void
656 AcpiDbCreateExecutionThreads (
657 char *NumThreadsArg,
658 char *NumLoopsArg,
659 char *MethodNameArg)
660 {
661 ACPI_STATUS Status;
662 UINT32 NumThreads;
663 UINT32 NumLoops;
664 UINT32 i;
665 UINT32 Size;
666 ACPI_MUTEX MainThreadGate;
667 ACPI_MUTEX ThreadCompleteGate;
668 ACPI_MUTEX InfoGate;
669
670
671 /* Get the arguments */
672
673 NumThreads = ACPI_STRTOUL (NumThreadsArg, NULL, 0);
674 NumLoops = ACPI_STRTOUL (NumLoopsArg, NULL, 0);
675
676 if (!NumThreads || !NumLoops)
677 {
678 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n",
679 NumThreads, NumLoops);
680 return;
681 }
682
683 /*
684 * Create the semaphore for synchronization of
685 * the created threads with the main thread.
686 */
687 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate);
688 if (ACPI_FAILURE (Status))
689 {
690 AcpiOsPrintf ("Could not create semaphore for synchronization with the main thread, %s\n",
691 AcpiFormatException (Status));
692 return;
693 }
694
695 /*
696 * Create the semaphore for synchronization
697 * between the created threads.
698 */
699 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate);
700 if (ACPI_FAILURE (Status))
701 {
702 AcpiOsPrintf ("Could not create semaphore for synchronization between the created threads, %s\n",
703 AcpiFormatException (Status));
704 (void) AcpiOsDeleteSemaphore (MainThreadGate);
705 return;
706 }
707
708 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate);
709 if (ACPI_FAILURE (Status))
710 {
711 AcpiOsPrintf ("Could not create semaphore for synchronization of AcpiGbl_DbMethodInfo, %s\n",
712 AcpiFormatException (Status));
713 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
714 (void) AcpiOsDeleteSemaphore (MainThreadGate);
715 return;
716 }
717
718 ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));
719
720 /* Array to store IDs of threads */
721
722 AcpiGbl_DbMethodInfo.NumThreads = NumThreads;
723 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads;
724 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size);
725 if (AcpiGbl_DbMethodInfo.Threads == NULL)
726 {
727 AcpiOsPrintf ("No memory for thread IDs array\n");
728 (void) AcpiOsDeleteSemaphore (MainThreadGate);
729 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
730 (void) AcpiOsDeleteSemaphore (InfoGate);
731 return;
732 }
733 ACPI_MEMSET (AcpiGbl_DbMethodInfo.Threads, 0, Size);
734
735 /* Setup the context to be passed to each thread */
736
737 AcpiGbl_DbMethodInfo.Name = MethodNameArg;
738 AcpiGbl_DbMethodInfo.Flags = 0;
739 AcpiGbl_DbMethodInfo.NumLoops = NumLoops;
740 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate;
741 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate;
742 AcpiGbl_DbMethodInfo.InfoGate = InfoGate;
743
744 /* Init arguments to be passed to method */
745
746 AcpiGbl_DbMethodInfo.InitArgs = 1;
747 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments;
748 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr;
749 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr;
750 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr;
751 AcpiGbl_DbMethodInfo.Arguments[3] = NULL;
752
753 AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes;
754 AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER;
755 AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER;
756 AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER;
757
758 AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr);
759
760 Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
761 if (ACPI_FAILURE (Status))
762 {
763 goto CleanupAndExit;
764 }
765
766 /* Get the NS node, determines existence also */
767
768 Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname,
769 &AcpiGbl_DbMethodInfo.Method);
770 if (ACPI_FAILURE (Status))
771 {
772 AcpiOsPrintf ("%s Could not get handle for %s\n",
773 AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname);
774 goto CleanupAndExit;
775 }
776
777 /* Create the threads */
778
779 AcpiOsPrintf ("Creating %X threads to execute %X times each\n",
780 NumThreads, NumLoops);
781
782 for (i = 0; i < (NumThreads); i++)
783 {
784 Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread,
785 &AcpiGbl_DbMethodInfo);
786 if (ACPI_FAILURE (Status))
787 {
788 break;
789 }
790 }
791
792 /* Wait for all threads to complete */
793
794 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER);
795
796 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
797 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads);
798 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
799
800 CleanupAndExit:
801
802 /* Cleanup and exit */
803
804 (void) AcpiOsDeleteSemaphore (MainThreadGate);
805 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
806 (void) AcpiOsDeleteSemaphore (InfoGate);
807
808 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads);
809 AcpiGbl_DbMethodInfo.Threads = NULL;
810 }
811
812 #endif /* ACPI_DEBUGGER */