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      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 - 2025, 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 "acpi.h"
    155 #include "accommon.h"
    156 #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 #pragma GCC diagnostic push
    219 #if defined(__GNUC__) && __GNUC__ >= 12
    220 #pragma GCC diagnostic ignored "-Wdangling-pointer="
    221 #endif
    222         AcpiGbl_LowestStackPointer = &CurrentSp;
    223 #pragma GCC diagnostic pop
    224     }
    225 
    226     if (AcpiGbl_NestingLevel > AcpiGbl_DeepestNesting)
    227     {
    228         AcpiGbl_DeepestNesting = AcpiGbl_NestingLevel;
    229     }
    230 }
    231 
    232 
    233 /*******************************************************************************
    234  *
    235  * FUNCTION:    AcpiUtTrimFunctionName
    236  *
    237  * PARAMETERS:  FunctionName        - Ascii string containing a procedure name
    238  *
    239  * RETURN:      Updated pointer to the function name
    240  *
    241  * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
    242  *              This allows compiler macros such as __FUNCTION__ to be used
    243  *              with no change to the debug output.
    244  *
    245  ******************************************************************************/
    246 
    247 static const char *
    248 AcpiUtTrimFunctionName (
    249     const char              *FunctionName)
    250 {
    251 
    252     /* All Function names are longer than 4 chars, check is safe */
    253 
    254     if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_MIXED)
    255     {
    256         /* This is the case where the original source has not been modified */
    257 
    258         return (FunctionName + 4);
    259     }
    260 
    261     if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_LOWER)
    262     {
    263         /* This is the case where the source has been 'linuxized' */
    264 
    265         return (FunctionName + 5);
    266     }
    267 
    268     return (FunctionName);
    269 }
    270 
    271 
    272 /*******************************************************************************
    273  *
    274  * FUNCTION:    AcpiDebugPrint
    275  *
    276  * PARAMETERS:  RequestedDebugLevel - Requested debug print level
    277  *              LineNumber          - Caller's line number (for error output)
    278  *              FunctionName        - Caller's procedure name
    279  *              ModuleName          - Caller's module name
    280  *              ComponentId         - Caller's component ID
    281  *              Format              - Printf format field
    282  *              ...                 - Optional printf arguments
    283  *
    284  * RETURN:      None
    285  *
    286  * DESCRIPTION: Print error message with prefix consisting of the module name,
    287  *              line number, and component ID.
    288  *
    289  ******************************************************************************/
    290 
    291 void  ACPI_INTERNAL_VAR_XFACE
    292 AcpiDebugPrint (
    293     UINT32                  RequestedDebugLevel,
    294     UINT32                  LineNumber,
    295     const char              *FunctionName,
    296     const char              *ModuleName,
    297     UINT32                  ComponentId,
    298     const char              *Format,
    299     ...)
    300 {
    301     ACPI_THREAD_ID          ThreadId;
    302     va_list                 args;
    303 #ifdef ACPI_APPLICATION
    304     int                     FillCount;
    305 #endif
    306 
    307     /* Check if debug output enabled */
    308 
    309     if (!ACPI_IS_DEBUG_ENABLED (RequestedDebugLevel, ComponentId))
    310     {
    311         return;
    312     }
    313 
    314     /*
    315      * Thread tracking and context switch notification
    316      */
    317     ThreadId = AcpiOsGetThreadId ();
    318     if (ThreadId != AcpiGbl_PreviousThreadId)
    319     {
    320         if (ACPI_LV_THREADS & AcpiDbgLevel)
    321         {
    322             AcpiOsPrintf (
    323                 "\n**** Context Switch from TID %u to TID %u ****\n\n",
    324                 (UINT32) AcpiGbl_PreviousThreadId, (UINT32) ThreadId);
    325         }
    326 
    327         AcpiGbl_PreviousThreadId = ThreadId;
    328         AcpiGbl_NestingLevel = 0;
    329     }
    330 
    331     /*
    332      * Display the module name, current line number, thread ID (if requested),
    333      * current procedure nesting level, and the current procedure name
    334      */
    335     AcpiOsPrintf ("%9s-%04d ", ModuleName, LineNumber);
    336 
    337 #ifdef ACPI_APPLICATION
    338     /*
    339      * For AcpiExec/iASL only, emit the thread ID and nesting level.
    340      * Note: nesting level is really only useful during a single-thread
    341      * execution. Otherwise, multiple threads will keep resetting the
    342      * level.
    343      */
    344     if (ACPI_LV_THREADS & AcpiDbgLevel)
    345     {
    346         AcpiOsPrintf ("[%u] ", (UINT32) ThreadId);
    347     }
    348 
    349     FillCount = 48 - AcpiGbl_NestingLevel -
    350         strlen (AcpiUtTrimFunctionName (FunctionName));
    351     if (FillCount < 0)
    352     {
    353         FillCount = 0;
    354     }
    355 
    356     AcpiOsPrintf ("[%02d] %*s",
    357         AcpiGbl_NestingLevel, AcpiGbl_NestingLevel + 1, " ");
    358     AcpiOsPrintf ("%s%*s: ",
    359         AcpiUtTrimFunctionName (FunctionName), FillCount, " ");
    360 
    361 #else
    362     AcpiOsPrintf ("%-22.22s: ", AcpiUtTrimFunctionName (FunctionName));
    363 #endif
    364 
    365     va_start (args, Format);
    366     AcpiOsVprintf (Format, args);
    367     va_end (args);
    368 }
    369 
    370 ACPI_EXPORT_SYMBOL (AcpiDebugPrint)
    371 
    372 
    373 /*******************************************************************************
    374  *
    375  * FUNCTION:    AcpiDebugPrintRaw
    376  *
    377  * PARAMETERS:  RequestedDebugLevel - Requested debug print level
    378  *              LineNumber          - Caller's line number
    379  *              FunctionName        - Caller's procedure name
    380  *              ModuleName          - Caller's module name
    381  *              ComponentId         - Caller's component ID
    382  *              Format              - Printf format field
    383  *              ...                 - Optional printf arguments
    384  *
    385  * RETURN:      None
    386  *
    387  * DESCRIPTION: Print message with no headers. Has same interface as
    388  *              DebugPrint so that the same macros can be used.
    389  *
    390  ******************************************************************************/
    391 
    392 void  ACPI_INTERNAL_VAR_XFACE
    393 AcpiDebugPrintRaw (
    394     UINT32                  RequestedDebugLevel,
    395     UINT32                  LineNumber,
    396     const char              *FunctionName,
    397     const char              *ModuleName,
    398     UINT32                  ComponentId,
    399     const char              *Format,
    400     ...)
    401 {
    402     va_list                 args;
    403 
    404 
    405     /* Check if debug output enabled */
    406 
    407     if (!ACPI_IS_DEBUG_ENABLED (RequestedDebugLevel, ComponentId))
    408     {
    409         return;
    410     }
    411 
    412     va_start (args, Format);
    413     AcpiOsVprintf (Format, args);
    414     va_end (args);
    415 }
    416 
    417 ACPI_EXPORT_SYMBOL (AcpiDebugPrintRaw)
    418 
    419 
    420 /*******************************************************************************
    421  *
    422  * FUNCTION:    AcpiUtTrace
    423  *
    424  * PARAMETERS:  LineNumber          - Caller's line number
    425  *              FunctionName        - Caller's procedure name
    426  *              ModuleName          - Caller's module name
    427  *              ComponentId         - Caller's component ID
    428  *
    429  * RETURN:      None
    430  *
    431  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
    432  *              set in DebugLevel
    433  *
    434  ******************************************************************************/
    435 
    436 void
    437 AcpiUtTrace (
    438     UINT32                  LineNumber,
    439     const char              *FunctionName,
    440     const char              *ModuleName,
    441     UINT32                  ComponentId)
    442 {
    443 
    444     AcpiGbl_NestingLevel++;
    445     AcpiUtTrackStackPtr ();
    446 
    447     /* Check if enabled up-front for performance */
    448 
    449     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    450     {
    451         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    452             LineNumber, FunctionName, ModuleName, ComponentId,
    453             "%s\n", AcpiGbl_FunctionEntryPrefix);
    454     }
    455 }
    456 
    457 ACPI_EXPORT_SYMBOL (AcpiUtTrace)
    458 
    459 
    460 /*******************************************************************************
    461  *
    462  * FUNCTION:    AcpiUtTracePtr
    463  *
    464  * PARAMETERS:  LineNumber          - Caller's line number
    465  *              FunctionName        - Caller's procedure name
    466  *              ModuleName          - Caller's module name
    467  *              ComponentId         - Caller's component ID
    468  *              Pointer             - Pointer to display
    469  *
    470  * RETURN:      None
    471  *
    472  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
    473  *              set in DebugLevel
    474  *
    475  ******************************************************************************/
    476 
    477 void
    478 AcpiUtTracePtr (
    479     UINT32                  LineNumber,
    480     const char              *FunctionName,
    481     const char              *ModuleName,
    482     UINT32                  ComponentId,
    483     const void              *Pointer)
    484 {
    485 
    486     AcpiGbl_NestingLevel++;
    487     AcpiUtTrackStackPtr ();
    488 
    489     /* Check if enabled up-front for performance */
    490 
    491     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    492     {
    493         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    494             LineNumber, FunctionName, ModuleName, ComponentId,
    495             "%s %p\n", AcpiGbl_FunctionEntryPrefix, Pointer);
    496     }
    497 }
    498 
    499 
    500 /*******************************************************************************
    501  *
    502  * FUNCTION:    AcpiUtTraceStr
    503  *
    504  * PARAMETERS:  LineNumber          - Caller's line number
    505  *              FunctionName        - Caller's procedure name
    506  *              ModuleName          - Caller's module name
    507  *              ComponentId         - Caller's component ID
    508  *              String              - Additional string to display
    509  *
    510  * RETURN:      None
    511  *
    512  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
    513  *              set in DebugLevel
    514  *
    515  ******************************************************************************/
    516 
    517 void
    518 AcpiUtTraceStr (
    519     UINT32                  LineNumber,
    520     const char              *FunctionName,
    521     const char              *ModuleName,
    522     UINT32                  ComponentId,
    523     const char              *String)
    524 {
    525 
    526     AcpiGbl_NestingLevel++;
    527     AcpiUtTrackStackPtr ();
    528 
    529     /* Check if enabled up-front for performance */
    530 
    531     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    532     {
    533         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    534             LineNumber, FunctionName, ModuleName, ComponentId,
    535             "%s %s\n", AcpiGbl_FunctionEntryPrefix, String);
    536     }
    537 }
    538 
    539 
    540 /*******************************************************************************
    541  *
    542  * FUNCTION:    AcpiUtTraceU32
    543  *
    544  * PARAMETERS:  LineNumber          - Caller's line number
    545  *              FunctionName        - Caller's procedure name
    546  *              ModuleName          - Caller's module name
    547  *              ComponentId         - Caller's component ID
    548  *              Integer             - Integer to display
    549  *
    550  * RETURN:      None
    551  *
    552  * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
    553  *              set in DebugLevel
    554  *
    555  ******************************************************************************/
    556 
    557 void
    558 AcpiUtTraceU32 (
    559     UINT32                  LineNumber,
    560     const char              *FunctionName,
    561     const char              *ModuleName,
    562     UINT32                  ComponentId,
    563     UINT32                  Integer)
    564 {
    565 
    566     AcpiGbl_NestingLevel++;
    567     AcpiUtTrackStackPtr ();
    568 
    569     /* Check if enabled up-front for performance */
    570 
    571     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    572     {
    573         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    574             LineNumber, FunctionName, ModuleName, ComponentId,
    575             "%s %08X\n", AcpiGbl_FunctionEntryPrefix, Integer);
    576     }
    577 }
    578 
    579 
    580 /*******************************************************************************
    581  *
    582  * FUNCTION:    AcpiUtExit
    583  *
    584  * PARAMETERS:  LineNumber          - Caller's line number
    585  *              FunctionName        - Caller's procedure name
    586  *              ModuleName          - Caller's module name
    587  *              ComponentId         - Caller's component ID
    588  *
    589  * RETURN:      None
    590  *
    591  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
    592  *              set in DebugLevel
    593  *
    594  ******************************************************************************/
    595 
    596 void
    597 AcpiUtExit (
    598     UINT32                  LineNumber,
    599     const char              *FunctionName,
    600     const char              *ModuleName,
    601     UINT32                  ComponentId)
    602 {
    603 
    604     /* Check if enabled up-front for performance */
    605 
    606     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    607     {
    608         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    609             LineNumber, FunctionName, ModuleName, ComponentId,
    610             "%s\n", AcpiGbl_FunctionExitPrefix);
    611     }
    612 
    613     if (AcpiGbl_NestingLevel)
    614     {
    615         AcpiGbl_NestingLevel--;
    616     }
    617 }
    618 
    619 ACPI_EXPORT_SYMBOL (AcpiUtExit)
    620 
    621 
    622 /*******************************************************************************
    623  *
    624  * FUNCTION:    AcpiUtStatusExit
    625  *
    626  * PARAMETERS:  LineNumber          - Caller's line number
    627  *              FunctionName        - Caller's procedure name
    628  *              ModuleName          - Caller's module name
    629  *              ComponentId         - Caller's component ID
    630  *              Status              - Exit status code
    631  *
    632  * RETURN:      None
    633  *
    634  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
    635  *              set in DebugLevel. Prints exit status also.
    636  *
    637  ******************************************************************************/
    638 
    639 void
    640 AcpiUtStatusExit (
    641     UINT32                  LineNumber,
    642     const char              *FunctionName,
    643     const char              *ModuleName,
    644     UINT32                  ComponentId,
    645     ACPI_STATUS             Status)
    646 {
    647 
    648     /* Check if enabled up-front for performance */
    649 
    650     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    651     {
    652         if (ACPI_SUCCESS (Status))
    653         {
    654             AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    655                 LineNumber, FunctionName, ModuleName, ComponentId,
    656                 "%s %s\n", AcpiGbl_FunctionExitPrefix,
    657                 AcpiFormatException (Status));
    658         }
    659         else
    660         {
    661             AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    662                 LineNumber, FunctionName, ModuleName, ComponentId,
    663                 "%s ****Exception****: %s\n", AcpiGbl_FunctionExitPrefix,
    664                 AcpiFormatException (Status));
    665         }
    666     }
    667 
    668     if (AcpiGbl_NestingLevel)
    669     {
    670         AcpiGbl_NestingLevel--;
    671     }
    672 }
    673 
    674 ACPI_EXPORT_SYMBOL (AcpiUtStatusExit)
    675 
    676 
    677 /*******************************************************************************
    678  *
    679  * FUNCTION:    AcpiUtValueExit
    680  *
    681  * PARAMETERS:  LineNumber          - Caller's line number
    682  *              FunctionName        - Caller's procedure name
    683  *              ModuleName          - Caller's module name
    684  *              ComponentId         - Caller's component ID
    685  *              Value               - Value to be printed with exit msg
    686  *
    687  * RETURN:      None
    688  *
    689  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
    690  *              set in DebugLevel. Prints exit value also.
    691  *
    692  ******************************************************************************/
    693 
    694 void
    695 AcpiUtValueExit (
    696     UINT32                  LineNumber,
    697     const char              *FunctionName,
    698     const char              *ModuleName,
    699     UINT32                  ComponentId,
    700     UINT64                  Value)
    701 {
    702 
    703     /* Check if enabled up-front for performance */
    704 
    705     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    706     {
    707         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    708             LineNumber, FunctionName, ModuleName, ComponentId,
    709             "%s %8.8X%8.8X\n", AcpiGbl_FunctionExitPrefix,
    710             ACPI_FORMAT_UINT64 (Value));
    711     }
    712 
    713     if (AcpiGbl_NestingLevel)
    714     {
    715         AcpiGbl_NestingLevel--;
    716     }
    717 }
    718 
    719 ACPI_EXPORT_SYMBOL (AcpiUtValueExit)
    720 
    721 
    722 /*******************************************************************************
    723  *
    724  * FUNCTION:    AcpiUtPtrExit
    725  *
    726  * PARAMETERS:  LineNumber          - Caller's line number
    727  *              FunctionName        - Caller's procedure name
    728  *              ModuleName          - Caller's module name
    729  *              ComponentId         - Caller's component ID
    730  *              Ptr                 - Pointer to display
    731  *
    732  * RETURN:      None
    733  *
    734  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
    735  *              set in DebugLevel. Prints exit value also.
    736  *
    737  ******************************************************************************/
    738 
    739 void
    740 AcpiUtPtrExit (
    741     UINT32                  LineNumber,
    742     const char              *FunctionName,
    743     const char              *ModuleName,
    744     UINT32                  ComponentId,
    745     UINT8                   *Ptr)
    746 {
    747 
    748     /* Check if enabled up-front for performance */
    749 
    750     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    751     {
    752         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    753             LineNumber, FunctionName, ModuleName, ComponentId,
    754             "%s %p\n", AcpiGbl_FunctionExitPrefix, Ptr);
    755     }
    756 
    757     if (AcpiGbl_NestingLevel)
    758     {
    759         AcpiGbl_NestingLevel--;
    760     }
    761 }
    762 
    763 
    764 /*******************************************************************************
    765  *
    766  * FUNCTION:    AcpiUtStrExit
    767  *
    768  * PARAMETERS:  LineNumber          - Caller's line number
    769  *              FunctionName        - Caller's procedure name
    770  *              ModuleName          - Caller's module name
    771  *              ComponentId         - Caller's component ID
    772  *              String              - String to display
    773  *
    774  * RETURN:      None
    775  *
    776  * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
    777  *              set in DebugLevel. Prints exit value also.
    778  *
    779  ******************************************************************************/
    780 
    781 void
    782 AcpiUtStrExit (
    783     UINT32                  LineNumber,
    784     const char              *FunctionName,
    785     const char              *ModuleName,
    786     UINT32                  ComponentId,
    787     const char              *String)
    788 {
    789 
    790     /* Check if enabled up-front for performance */
    791 
    792     if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_FUNCTIONS, ComponentId))
    793     {
    794         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
    795             LineNumber, FunctionName, ModuleName, ComponentId,
    796             "%s %s\n", AcpiGbl_FunctionExitPrefix, String);
    797     }
    798 
    799     if (AcpiGbl_NestingLevel)
    800     {
    801         AcpiGbl_NestingLevel--;
    802     }
    803 }
    804 
    805 
    806 /*******************************************************************************
    807  *
    808  * FUNCTION:    AcpiTracePoint
    809  *
    810  * PARAMETERS:  Type                - Trace event type
    811  *              Begin               - TRUE if before execution
    812  *              Aml                 - Executed AML address
    813  *              Pathname            - Object path
    814  *              Pointer             - Pointer to the related object
    815  *
    816  * RETURN:      None
    817  *
    818  * DESCRIPTION: Interpreter execution trace.
    819  *
    820  ******************************************************************************/
    821 
    822 void
    823 AcpiTracePoint (
    824     ACPI_TRACE_EVENT_TYPE   Type,
    825     BOOLEAN                 Begin,
    826     UINT8                   *Aml,
    827     char                    *Pathname)
    828 {
    829 
    830     ACPI_FUNCTION_ENTRY ();
    831 
    832     AcpiExTracePoint (Type, Begin, Aml, Pathname);
    833 
    834 #ifdef ACPI_USE_SYSTEM_TRACER
    835     AcpiOsTracePoint (Type, Begin, Aml, Pathname);
    836 #endif
    837 }
    838 
    839 ACPI_EXPORT_SYMBOL (AcpiTracePoint)
    840 
    841 
    842 #endif
    843