1 /******************************************************************************
2  *
3  * Module Name: utdebug - Debug print/trace routines
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 #define EXPORT_ACPI_INTERFACES
153 
154 #include <contrib/dev/acpica/include/acpi.h>
155 #include <contrib/dev/acpica/include/accommon.h>
156 #include <contrib/dev/acpica/include/acinterp.h>
157 
158 #define _COMPONENT          ACPI_UTILITIES
159         ACPI_MODULE_NAME    ("utdebug")
160 
161 
162 #ifdef ACPI_DEBUG_OUTPUT
163 
164 static ACPI_THREAD_ID       AcpiGbl_PreviousThreadId = (ACPI_THREAD_ID) 0xFFFFFFFF;
165 static const char           *AcpiGbl_FunctionEntryPrefix = "----Entry";
166 static const char           *AcpiGbl_FunctionExitPrefix  = "----Exit-";
167 
168 
169 /*******************************************************************************
170  *
171  * FUNCTION:    AcpiUtInitStackPtrTrace
172  *
173  * PARAMETERS:  None
174  *
175  * RETURN:      None
176  *
177  * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
178  *
179  ******************************************************************************/
180 
181 void
182 AcpiUtInitStackPtrTrace (
183     void)
184 {
185     ACPI_SIZE               CurrentSp;
186 
187 
188 #pragma GCC diagnostic push
189 #if defined(__GNUC__) && __GNUC__ >= 12
190 #pragma GCC diagnostic ignored "-Wdangling-pointer="
191 #endif
192     AcpiGbl_EntryStackPointer = &CurrentSp;
193 #pragma GCC diagnostic pop
194 }
195 
196 
197 /*******************************************************************************
198  *
199  * FUNCTION:    AcpiUtTrackStackPtr
200  *
201  * PARAMETERS:  None
202  *
203  * RETURN:      None
204  *
205  * DESCRIPTION: Save the current CPU stack pointer
206  *
207  ******************************************************************************/
208 
209 void
210 AcpiUtTrackStackPtr (
211     void)
212 {
213     ACPI_SIZE               CurrentSp;
214 
215 
216     if (&CurrentSp < AcpiGbl_LowestStackPointer)
217     {
218         AcpiGbl_LowestStackPointer = &CurrentSp;
219     }
220 
221     if (AcpiGbl_NestingLevel > AcpiGbl_DeepestNesting)
222     {
223         AcpiGbl_DeepestNesting = AcpiGbl_NestingLevel;
224     }
225 }
226 
227 
228 /*******************************************************************************
229  *
230  * FUNCTION:    AcpiUtTrimFunctionName
231  *
232  * PARAMETERS:  FunctionName        - Ascii string containing a procedure name
233  *
234  * RETURN:      Updated pointer to the function name
235  *
236  * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
237  *              This allows compiler macros such as __FUNCTION__ to be used
238  *              with no change to the debug output.
239  *
240  ******************************************************************************/
241 
242 static const char *
243 AcpiUtTrimFunctionName (
244     const char              *FunctionName)
245 {
246 
247     /* All Function names are longer than 4 chars, check is safe */
248 
249     if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_MIXED)
250     {
251         /* This is the case where the original source has not been modified */
252 
253         return (FunctionName + 4);
254     }
255 
256     if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_LOWER)
257     {
258         /* This is the case where the source has been 'linuxized' */
259 
260         return (FunctionName + 5);
261     }
262 
263     return (FunctionName);
264 }
265 
266 
267 /*******************************************************************************
268  *
269  * FUNCTION:    AcpiDebugPrint
270  *
271  * PARAMETERS:  RequestedDebugLevel - Requested debug print level
272  *              LineNumber          - Caller's line number (for error output)
273  *              FunctionName        - Caller's procedure name
274  *              ModuleName          - Caller's module name
275  *              ComponentId         - Caller's component ID
276  *              Format              - Printf format field
277  *              ...                 - Optional printf arguments
278  *
279  * RETURN:      None
280  *
281  * DESCRIPTION: Print error message with prefix consisting of the module name,
282  *              line number, and component ID.
283  *
284  ******************************************************************************/
285 
286 void  ACPI_INTERNAL_VAR_XFACE
287 AcpiDebugPrint (
288     UINT32                  RequestedDebugLevel,
289     UINT32                  LineNumber,
290     const char              *FunctionName,
291     const char              *ModuleName,
292     UINT32                  ComponentId,
293     const char              *Format,
294     ...)
295 {
296     ACPI_THREAD_ID          ThreadId;
297     va_list                 args;
298 #ifdef ACPI_APPLICATION
299     int                     FillCount;
300 #endif
301 
302     /* Check if debug output enabled */
303 
304     if (!ACPI_IS_DEBUG_ENABLED (RequestedDebugLevel, ComponentId))
305     {
306         return;
307     }
308 
309     /*
310      * Thread tracking and context switch notification
311      */
312     ThreadId = AcpiOsGetThreadId ();
313     if (ThreadId != AcpiGbl_PreviousThreadId)
314     {
315         if (ACPI_LV_THREADS & AcpiDbgLevel)
316         {
317             AcpiOsPrintf (
318                 "\n**** Context Switch from TID %u to TID %u ****\n\n",
319                 (UINT32) AcpiGbl_PreviousThreadId, (UINT32) ThreadId);
320         }
321 
322         AcpiGbl_PreviousThreadId = ThreadId;
323         AcpiGbl_NestingLevel = 0;
324     }
325 
326     /*
327      * Display the module name, current line number, thread ID (if requested),
328      * current procedure nesting level, and the current procedure name
329      */
330     AcpiOsPrintf ("%9s-%04d ", ModuleName, LineNumber);
331 
332 #ifdef ACPI_APPLICATION
333     /*
334      * For AcpiExec/iASL only, emit the thread ID and nesting level.
335      * Note: nesting level is really only useful during a single-thread
336      * execution. Otherwise, multiple threads will keep resetting the
337      * level.
338      */
339     if (ACPI_LV_THREADS & AcpiDbgLevel)
340     {
341         AcpiOsPrintf ("[%u] ", (UINT32) ThreadId);
342     }
343 
344     FillCount = 48 - AcpiGbl_NestingLevel -
345         strlen (AcpiUtTrimFunctionName (FunctionName));
346     if (FillCount < 0)
347     {
348         FillCount = 0;
349     }
350 
351     AcpiOsPrintf ("[%02d] %*s",
352         AcpiGbl_NestingLevel, AcpiGbl_NestingLevel + 1, " ");
353     AcpiOsPrintf ("%s%*s: ",
354         AcpiUtTrimFunctionName (FunctionName), FillCount, " ");
355 
356 #else
357     AcpiOsPrintf ("%-22.22s: ", AcpiUtTrimFunctionName (FunctionName));
358 #endif
359 
360     va_start (args, Format);
361     AcpiOsVprintf (Format, args);
362     va_end (args);
363 }
364 
365 ACPI_EXPORT_SYMBOL (AcpiDebugPrint)
366 
367 
368 /*******************************************************************************
369  *
370  * FUNCTION:    AcpiDebugPrintRaw
371  *
372  * PARAMETERS:  RequestedDebugLevel - Requested debug print level
373  *              LineNumber          - Caller's line number
374  *              FunctionName        - Caller's procedure name
375  *              ModuleName          - Caller's module name
376  *              ComponentId         - Caller's component ID
377  *              Format              - Printf format field
378  *              ...                 - Optional printf arguments
379  *
380  * RETURN:      None
381  *
382  * DESCRIPTION: Print message with no headers. Has same interface as
383  *              DebugPrint so that the same macros can be used.
384  *
385  ******************************************************************************/
386 
387 void  ACPI_INTERNAL_VAR_XFACE
388 AcpiDebugPrintRaw (
389     UINT32                  RequestedDebugLevel,
390     UINT32                  LineNumber,
391     const char              *FunctionName,
392     const char              *ModuleName,
393     UINT32                  ComponentId,
394     const char              *Format,
395     ...)
396 {
397     va_list                 args;
398 
399 
400     /* Check if debug output enabled */
401 
402     if (!ACPI_IS_DEBUG_ENABLED (RequestedDebugLevel, ComponentId))
403     {
404         return;
405     }
406 
407     va_start (args, Format);
408     AcpiOsVprintf (Format, args);
409     va_end (args);
410 }
411 
412 ACPI_EXPORT_SYMBOL (AcpiDebugPrintRaw)
413 
414 
415 /*******************************************************************************
416  *
417  * FUNCTION:    AcpiUtTrace
418  *
419  * PARAMETERS:  LineNumber          - Caller's line number
420  *              FunctionName        - Caller's procedure name
421  *              ModuleName          - Caller's module name
422  *              ComponentId         - Caller's component ID
423  *
424  * RETURN:      None
425  *
426  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
427  *              set in DebugLevel
428  *
429  ******************************************************************************/
430 
431 void
432 AcpiUtTrace (
433     UINT32                  LineNumber,
434     const char              *FunctionName,
435     const char              *ModuleName,
436     UINT32                  ComponentId)
437 {
438 
439     AcpiGbl_NestingLevel++;
440     AcpiUtTrackStackPtr ();
441 
442     /* Check if enabled up-front for performance */
443 
444     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
445     {
446         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
447             LineNumber, FunctionName, ModuleName, ComponentId,
448             "%s\n", AcpiGbl_FunctionEntryPrefix);
449     }
450 }
451 
452 ACPI_EXPORT_SYMBOL (AcpiUtTrace)
453 
454 
455 /*******************************************************************************
456  *
457  * FUNCTION:    AcpiUtTracePtr
458  *
459  * PARAMETERS:  LineNumber          - Caller's line number
460  *              FunctionName        - Caller's procedure name
461  *              ModuleName          - Caller's module name
462  *              ComponentId         - Caller's component ID
463  *              Pointer             - Pointer to display
464  *
465  * RETURN:      None
466  *
467  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
468  *              set in DebugLevel
469  *
470  ******************************************************************************/
471 
472 void
473 AcpiUtTracePtr (
474     UINT32                  LineNumber,
475     const char              *FunctionName,
476     const char              *ModuleName,
477     UINT32                  ComponentId,
478     const void              *Pointer)
479 {
480 
481     AcpiGbl_NestingLevel++;
482     AcpiUtTrackStackPtr ();
483 
484     /* Check if enabled up-front for performance */
485 
486     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
487     {
488         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
489             LineNumber, FunctionName, ModuleName, ComponentId,
490             "%s %p\n", AcpiGbl_FunctionEntryPrefix, Pointer);
491     }
492 }
493 
494 
495 /*******************************************************************************
496  *
497  * FUNCTION:    AcpiUtTraceStr
498  *
499  * PARAMETERS:  LineNumber          - Caller's line number
500  *              FunctionName        - Caller's procedure name
501  *              ModuleName          - Caller's module name
502  *              ComponentId         - Caller's component ID
503  *              String              - Additional string to display
504  *
505  * RETURN:      None
506  *
507  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
508  *              set in DebugLevel
509  *
510  ******************************************************************************/
511 
512 void
513 AcpiUtTraceStr (
514     UINT32                  LineNumber,
515     const char              *FunctionName,
516     const char              *ModuleName,
517     UINT32                  ComponentId,
518     const char              *String)
519 {
520 
521     AcpiGbl_NestingLevel++;
522     AcpiUtTrackStackPtr ();
523 
524     /* Check if enabled up-front for performance */
525 
526     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
527     {
528         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
529             LineNumber, FunctionName, ModuleName, ComponentId,
530             "%s %s\n", AcpiGbl_FunctionEntryPrefix, String);
531     }
532 }
533 
534 
535 /*******************************************************************************
536  *
537  * FUNCTION:    AcpiUtTraceU32
538  *
539  * PARAMETERS:  LineNumber          - Caller's line number
540  *              FunctionName        - Caller's procedure name
541  *              ModuleName          - Caller's module name
542  *              ComponentId         - Caller's component ID
543  *              Integer             - Integer to display
544  *
545  * RETURN:      None
546  *
547  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
548  *              set in DebugLevel
549  *
550  ******************************************************************************/
551 
552 void
553 AcpiUtTraceU32 (
554     UINT32                  LineNumber,
555     const char              *FunctionName,
556     const char              *ModuleName,
557     UINT32                  ComponentId,
558     UINT32                  Integer)
559 {
560 
561     AcpiGbl_NestingLevel++;
562     AcpiUtTrackStackPtr ();
563 
564     /* Check if enabled up-front for performance */
565 
566     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
567     {
568         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
569             LineNumber, FunctionName, ModuleName, ComponentId,
570             "%s %08X\n", AcpiGbl_FunctionEntryPrefix, Integer);
571     }
572 }
573 
574 
575 /*******************************************************************************
576  *
577  * FUNCTION:    AcpiUtExit
578  *
579  * PARAMETERS:  LineNumber          - Caller's line number
580  *              FunctionName        - Caller's procedure name
581  *              ModuleName          - Caller's module name
582  *              ComponentId         - Caller's component ID
583  *
584  * RETURN:      None
585  *
586  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
587  *              set in DebugLevel
588  *
589  ******************************************************************************/
590 
591 void
592 AcpiUtExit (
593     UINT32                  LineNumber,
594     const char              *FunctionName,
595     const char              *ModuleName,
596     UINT32                  ComponentId)
597 {
598 
599     /* Check if enabled up-front for performance */
600 
601     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
602     {
603         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
604             LineNumber, FunctionName, ModuleName, ComponentId,
605             "%s\n", AcpiGbl_FunctionExitPrefix);
606     }
607 
608     if (AcpiGbl_NestingLevel)
609     {
610         AcpiGbl_NestingLevel--;
611     }
612 }
613 
614 ACPI_EXPORT_SYMBOL (AcpiUtExit)
615 
616 
617 /*******************************************************************************
618  *
619  * FUNCTION:    AcpiUtStatusExit
620  *
621  * PARAMETERS:  LineNumber          - Caller's line number
622  *              FunctionName        - Caller's procedure name
623  *              ModuleName          - Caller's module name
624  *              ComponentId         - Caller's component ID
625  *              Status              - Exit status code
626  *
627  * RETURN:      None
628  *
629  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
630  *              set in DebugLevel. Prints exit status also.
631  *
632  ******************************************************************************/
633 
634 void
635 AcpiUtStatusExit (
636     UINT32                  LineNumber,
637     const char              *FunctionName,
638     const char              *ModuleName,
639     UINT32                  ComponentId,
640     ACPI_STATUS             Status)
641 {
642 
643     /* Check if enabled up-front for performance */
644 
645     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
646     {
647         if (ACPI_SUCCESS (Status))
648         {
649             AcpiDebugPrint (ACPI_LV_FUNCTIONS,
650                 LineNumber, FunctionName, ModuleName, ComponentId,
651                 "%s %s\n", AcpiGbl_FunctionExitPrefix,
652                 AcpiFormatException (Status));
653         }
654         else
655         {
656             AcpiDebugPrint (ACPI_LV_FUNCTIONS,
657                 LineNumber, FunctionName, ModuleName, ComponentId,
658                 "%s ****Exception****: %s\n", AcpiGbl_FunctionExitPrefix,
659                 AcpiFormatException (Status));
660         }
661     }
662 
663     if (AcpiGbl_NestingLevel)
664     {
665         AcpiGbl_NestingLevel--;
666     }
667 }
668 
669 ACPI_EXPORT_SYMBOL (AcpiUtStatusExit)
670 
671 
672 /*******************************************************************************
673  *
674  * FUNCTION:    AcpiUtValueExit
675  *
676  * PARAMETERS:  LineNumber          - Caller's line number
677  *              FunctionName        - Caller's procedure name
678  *              ModuleName          - Caller's module name
679  *              ComponentId         - Caller's component ID
680  *              Value               - Value to be printed with exit msg
681  *
682  * RETURN:      None
683  *
684  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
685  *              set in DebugLevel. Prints exit value also.
686  *
687  ******************************************************************************/
688 
689 void
690 AcpiUtValueExit (
691     UINT32                  LineNumber,
692     const char              *FunctionName,
693     const char              *ModuleName,
694     UINT32                  ComponentId,
695     UINT64                  Value)
696 {
697 
698     /* Check if enabled up-front for performance */
699 
700     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
701     {
702         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
703             LineNumber, FunctionName, ModuleName, ComponentId,
704             "%s %8.8X%8.8X\n", AcpiGbl_FunctionExitPrefix,
705             ACPI_FORMAT_UINT64 (Value));
706     }
707 
708     if (AcpiGbl_NestingLevel)
709     {
710         AcpiGbl_NestingLevel--;
711     }
712 }
713 
714 ACPI_EXPORT_SYMBOL (AcpiUtValueExit)
715 
716 
717 /*******************************************************************************
718  *
719  * FUNCTION:    AcpiUtPtrExit
720  *
721  * PARAMETERS:  LineNumber          - Caller's line number
722  *              FunctionName        - Caller's procedure name
723  *              ModuleName          - Caller's module name
724  *              ComponentId         - Caller's component ID
725  *              Ptr                 - Pointer to display
726  *
727  * RETURN:      None
728  *
729  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
730  *              set in DebugLevel. Prints exit value also.
731  *
732  ******************************************************************************/
733 
734 void
735 AcpiUtPtrExit (
736     UINT32                  LineNumber,
737     const char              *FunctionName,
738     const char              *ModuleName,
739     UINT32                  ComponentId,
740     UINT8                   *Ptr)
741 {
742 
743     /* Check if enabled up-front for performance */
744 
745     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
746     {
747         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
748             LineNumber, FunctionName, ModuleName, ComponentId,
749             "%s %p\n", AcpiGbl_FunctionExitPrefix, Ptr);
750     }
751 
752     if (AcpiGbl_NestingLevel)
753     {
754         AcpiGbl_NestingLevel--;
755     }
756 }
757 
758 
759 /*******************************************************************************
760  *
761  * FUNCTION:    AcpiUtStrExit
762  *
763  * PARAMETERS:  LineNumber          - Caller's line number
764  *              FunctionName        - Caller's procedure name
765  *              ModuleName          - Caller's module name
766  *              ComponentId         - Caller's component ID
767  *              String              - String to display
768  *
769  * RETURN:      None
770  *
771  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
772  *              set in DebugLevel. Prints exit value also.
773  *
774  ******************************************************************************/
775 
776 void
777 AcpiUtStrExit (
778     UINT32                  LineNumber,
779     const char              *FunctionName,
780     const char              *ModuleName,
781     UINT32                  ComponentId,
782     const char              *String)
783 {
784 
785     /* Check if enabled up-front for performance */
786 
787     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
788     {
789         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
790             LineNumber, FunctionName, ModuleName, ComponentId,
791             "%s %s\n", AcpiGbl_FunctionExitPrefix, String);
792     }
793 
794     if (AcpiGbl_NestingLevel)
795     {
796         AcpiGbl_NestingLevel--;
797     }
798 }
799 
800 
801 /*******************************************************************************
802  *
803  * FUNCTION:    AcpiTracePoint
804  *
805  * PARAMETERS:  Type                - Trace event type
806  *              Begin               - TRUE if before execution
807  *              Aml                 - Executed AML address
808  *              Pathname            - Object path
809  *              Pointer             - Pointer to the related object
810  *
811  * RETURN:      None
812  *
813  * DESCRIPTION: Interpreter execution trace.
814  *
815  ******************************************************************************/
816 
817 void
818 AcpiTracePoint (
819     ACPI_TRACE_EVENT_TYPE   Type,
820     BOOLEAN                 Begin,
821     UINT8                   *Aml,
822     char                    *Pathname)
823 {
824 
825     ACPI_FUNCTION_ENTRY ();
826 
827     AcpiExTracePoint (Type, Begin, Aml, Pathname);
828 
829 #ifdef ACPI_USE_SYSTEM_TRACER
830     AcpiOsTracePoint (Type, Begin, Aml, Pathname);
831 #endif
832 }
833 
834 ACPI_EXPORT_SYMBOL (AcpiTracePoint)
835 
836 
837 #endif
838