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      1 /******************************************************************************
      2  *
      3  * Module Name: aslfiles - File support functions
      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 #include "aslcompiler.h"
    153 #include "acapps.h"
    154 
    155 #define _COMPONENT          ACPI_COMPILER
    156         ACPI_MODULE_NAME    ("aslfiles")
    157 
    158 /* Local prototypes */
    159 
    160 static FILE *
    161 FlOpenIncludeWithPrefix (
    162     char                    *PrefixDir,
    163     ACPI_PARSE_OBJECT       *Op,
    164     char                    *Filename);
    165 
    166 static BOOLEAN
    167 FlInputFileExists (
    168     char                    *InputFilename);
    169 
    170 #ifdef ACPI_OBSOLETE_FUNCTIONS
    171 ACPI_STATUS
    172 FlParseInputPathname (
    173     char                    *InputFilename);
    174 #endif
    175 
    176 
    177 /*******************************************************************************
    178  *
    179  * FUNCTION:    FlInitOneFile
    180  *
    181  * PARAMETERS:  InputFilename       - The user-specified ASL source file to be
    182  *                                    compiled
    183  *
    184  * RETURN:      Status
    185  *
    186  * DESCRIPTION: Initialize global file structure for one input file. This file
    187  *              structure contains references to input, output, debugging, and
    188  *              other miscellaneous files that are associated for a single
    189  *              input ASL file.
    190  *
    191  ******************************************************************************/
    192 
    193 ACPI_STATUS
    194 FlInitOneFile (
    195     char                    *InputFilename)
    196 {
    197     UINT32                  i;
    198     ASL_GLOBAL_FILE_NODE    *NewFileNode;
    199 
    200 
    201     if (FlInputFileExists (InputFilename))
    202     {
    203         AslError (ASL_ERROR, ASL_MSG_DUPLICATE_INPUT_FILE, NULL, InputFilename);
    204         return (AE_ALREADY_EXISTS);
    205     }
    206 
    207     NewFileNode = ACPI_CAST_PTR (ASL_GLOBAL_FILE_NODE,
    208         UtLocalCacheCalloc (sizeof (ASL_GLOBAL_FILE_NODE)));
    209 
    210     NewFileNode->ParserErrorDetected = FALSE;
    211     NewFileNode->Next = AslGbl_FilesList;
    212 
    213     AslGbl_FilesList = NewFileNode;
    214     AslGbl_Files = NewFileNode->Files;
    215 
    216     for (i = 0; i < ASL_NUM_FILES; i++)
    217     {
    218         AslGbl_Files[i].Handle = NULL;
    219         AslGbl_Files[i].Filename = NULL;
    220     }
    221 
    222     AslGbl_Files[ASL_FILE_STDOUT].Handle   = stdout;
    223     AslGbl_Files[ASL_FILE_STDOUT].Filename = "STDOUT";
    224 
    225     if (AslGbl_VerboseErrors)
    226     {
    227         AslGbl_Files[ASL_FILE_STDERR].Handle = stderr;
    228     }
    229     else
    230     {
    231         AslGbl_Files[ASL_FILE_STDERR].Handle = stdout;
    232     }
    233 
    234     AslGbl_Files[ASL_FILE_STDERR].Filename = "STDERR";
    235     return (AE_OK);
    236 }
    237 
    238 
    239 /*******************************************************************************
    240  *
    241  * FUNCTION:    FlInputFileExists
    242  *
    243  * PARAMETERS:  Filename       - File name to be searched
    244  *
    245  * RETURN:      Status
    246  *
    247  * DESCRIPTION: Returns true if the file name already exists.
    248  *
    249  ******************************************************************************/
    250 
    251 static BOOLEAN
    252 FlInputFileExists (
    253     char                    *Filename)
    254 {
    255     ASL_GLOBAL_FILE_NODE    *Current = AslGbl_FilesList;
    256 
    257 
    258     while (Current)
    259     {
    260         if (!strcmp (Filename, Current->Files[ASL_FILE_INPUT].Filename))
    261         {
    262             return (TRUE);
    263         }
    264 
    265         Current = Current->Next;
    266     }
    267 
    268     return (FALSE);
    269 }
    270 
    271 
    272 /*******************************************************************************
    273  *
    274  * FUNCTION:    FlSwitchFileSet
    275  *
    276  * PARAMETERS:  Op        - Parse node for the LINE asl statement
    277  *
    278  * RETURN:      None.
    279  *
    280  * DESCRIPTION: Set the current line number
    281  *
    282  ******************************************************************************/
    283 
    284 ASL_FILE_SWITCH_STATUS
    285 FlSwitchFileSet (
    286     char                    *InputFilename)
    287 {
    288     ASL_GLOBAL_FILE_NODE    *Current = AslGbl_FilesList;
    289     char                    *PrevFilename = Current->Files[ASL_FILE_INPUT].Filename;
    290 
    291 
    292     while (Current)
    293     {
    294         if (!strcmp(Current->Files[ASL_FILE_INPUT].Filename, InputFilename))
    295         {
    296             AslGbl_Files = Current->Files;
    297             AslGbl_TableSignature = Current->TableSignature;
    298             AslGbl_TableId = Current->TableId;
    299 
    300             if (!strcmp (InputFilename, PrevFilename))
    301             {
    302                 return (SWITCH_TO_SAME_FILE);
    303             }
    304             else
    305             {
    306                 return (SWITCH_TO_DIFFERENT_FILE);
    307             }
    308         }
    309 
    310         Current = Current->Next;
    311     }
    312 
    313     return (FILE_NOT_FOUND);
    314 }
    315 
    316 
    317 /*******************************************************************************
    318  *
    319  * FUNCTION:    FlGetFileHandle
    320  *
    321  * PARAMETERS:  OutFileId       - denotes file type of output handle
    322  *              InFileId        - denotes file type of the input Filename
    323  *              Filename
    324  *
    325  * RETURN:      File handle
    326  *
    327  * DESCRIPTION: Get the file handle for a particular filename/FileId. This
    328  *              function also allows the caller to specify the file Id of the
    329  *              desired type.
    330  *
    331  ******************************************************************************/
    332 
    333 FILE *
    334 FlGetFileHandle (
    335     UINT32                  OutFileId,
    336     UINT32                  InFileId,
    337     char                    *Filename)
    338 {
    339     ASL_GLOBAL_FILE_NODE    *Current = AslGbl_FilesList;
    340 
    341 
    342     if (!Filename)
    343     {
    344         return (NULL);
    345     }
    346 
    347     while (Current)
    348     {
    349         if (!strcmp (Current->Files[InFileId].Filename, Filename))
    350         {
    351             return (Current->Files[OutFileId].Handle);
    352         }
    353 
    354         Current = Current->Next;
    355     }
    356 
    357     return (NULL);
    358 }
    359 
    360 
    361 /*******************************************************************************
    362  *
    363  * FUNCTION:    FlGetFileNode
    364  *
    365  * PARAMETERS:  FileId        - File type (ID) of the input Filename
    366  *              Filename      - File to search for
    367  *
    368  * RETURN:      A global file node
    369  *
    370  * DESCRIPTION: Get the file node for a particular filename/FileId.
    371  *
    372  ******************************************************************************/
    373 
    374 ASL_GLOBAL_FILE_NODE *
    375 FlGetFileNode (
    376     UINT32                  FileId,
    377     char                    *Filename)
    378 {
    379     ASL_GLOBAL_FILE_NODE    *Current = AslGbl_FilesList;
    380 
    381 
    382     if (!Filename)
    383     {
    384         return (NULL);
    385     }
    386 
    387     while (Current)
    388     {
    389         if (!strcmp (Current->Files[FileId].Filename, Filename))
    390         {
    391             return (Current);
    392         }
    393 
    394         Current = Current->Next;
    395     }
    396 
    397     return (NULL);
    398 }
    399 
    400 
    401 /*******************************************************************************
    402  *
    403  * FUNCTION:    FlGetCurrentFileNode
    404  *
    405  * PARAMETERS:  None
    406  *
    407  * RETURN:      Global file node
    408  *
    409  * DESCRIPTION: Get the current input file node
    410  *
    411  ******************************************************************************/
    412 
    413 ASL_GLOBAL_FILE_NODE *
    414 FlGetCurrentFileNode (
    415     void)
    416 {
    417     ASL_GLOBAL_FILE_NODE    *FileNode =
    418         FlGetFileNode (ASL_FILE_INPUT,AslGbl_Files[ASL_FILE_INPUT].Filename);
    419 
    420 
    421     if (!FileNode)
    422     {
    423         /*
    424          * If the current file node does not exist after initializing the file
    425          * node structures, something went wrong and this is an unrecoverable
    426          * condition.
    427          */
    428         FlFileError (ASL_FILE_INPUT, ASL_MSG_COMPILER_INTERNAL);
    429         AslAbort ();
    430     }
    431 
    432     return (FileNode);
    433 }
    434 
    435 
    436 /*******************************************************************************
    437  *
    438  * FUNCTION:    FlSetLineNumber
    439  *
    440  * PARAMETERS:  Op        - Parse node for the LINE asl statement
    441  *
    442  * RETURN:      None.
    443  *
    444  * DESCRIPTION: Set the current line number
    445  *
    446  ******************************************************************************/
    447 
    448 void
    449 FlSetLineNumber (
    450     UINT32                  LineNumber)
    451 {
    452 
    453     DbgPrint (ASL_PARSE_OUTPUT, "\n#line: New line number %u (old %u)\n",
    454          LineNumber, AslGbl_LogicalLineNumber);
    455 
    456     AslGbl_CurrentLineNumber = LineNumber;
    457 }
    458 
    459 
    460 /*******************************************************************************
    461  *
    462  * FUNCTION:    FlSetFilename
    463  *
    464  * PARAMETERS:  Op        - Parse node for the LINE asl statement
    465  *
    466  * RETURN:      None.
    467  *
    468  * DESCRIPTION: Set the current filename
    469  *
    470  ******************************************************************************/
    471 
    472 void
    473 FlSetFilename (
    474     char                    *Filename)
    475 {
    476 
    477     DbgPrint (ASL_PARSE_OUTPUT, "\n#line: New filename %s (old %s)\n",
    478          Filename, AslGbl_Files[ASL_FILE_INPUT].Filename);
    479 
    480     /* No need to free any existing filename */
    481 
    482     AslGbl_Files[ASL_FILE_INPUT].Filename = Filename;
    483 }
    484 
    485 
    486 /*******************************************************************************
    487  *
    488  * FUNCTION:    FlAddIncludeDirectory
    489  *
    490  * PARAMETERS:  Dir             - Directory pathname string
    491  *
    492  * RETURN:      None
    493  *
    494  * DESCRIPTION: Add a directory the list of include prefix directories.
    495  *
    496  ******************************************************************************/
    497 
    498 void
    499 FlAddIncludeDirectory (
    500     char                    *Dir)
    501 {
    502     ASL_INCLUDE_DIR         *NewDir;
    503     ASL_INCLUDE_DIR         *NextDir;
    504     ASL_INCLUDE_DIR         *PrevDir = NULL;
    505     UINT32                  NeedsSeparator = 0;
    506     size_t                  DirLength;
    507 
    508 
    509     DirLength = strlen (Dir);
    510     if (!DirLength)
    511     {
    512         return;
    513     }
    514 
    515     /* Make sure that the pathname ends with a path separator */
    516 
    517     if ((Dir[DirLength-1] != '/') &&
    518         (Dir[DirLength-1] != '\\'))
    519     {
    520         NeedsSeparator = 1;
    521     }
    522 
    523     NewDir = ACPI_CAST_PTR (ASL_INCLUDE_DIR,
    524         UtLocalCacheCalloc (sizeof (ASL_INCLUDE_DIR)));
    525     NewDir->Dir = UtLocalCacheCalloc (DirLength + 1 + NeedsSeparator);
    526     strcpy (NewDir->Dir, Dir);
    527     if (NeedsSeparator)
    528     {
    529         strcat (NewDir->Dir, "/");
    530     }
    531 
    532     /*
    533      * Preserve command line ordering of -I options by adding new elements
    534      * at the end of the list
    535      */
    536     NextDir = AslGbl_IncludeDirList;
    537     while (NextDir)
    538     {
    539         PrevDir = NextDir;
    540         NextDir = NextDir->Next;
    541     }
    542 
    543     if (PrevDir)
    544     {
    545         PrevDir->Next = NewDir;
    546     }
    547     else
    548     {
    549         AslGbl_IncludeDirList = NewDir;
    550     }
    551 }
    552 
    553 
    554 /*******************************************************************************
    555  *
    556  * FUNCTION:    FlMergePathnames
    557  *
    558  * PARAMETERS:  PrefixDir       - Prefix directory pathname. Can be NULL or
    559  *                                a zero length string.
    560  *              FilePathname    - The include filename from the source ASL.
    561  *
    562  * RETURN:      Merged pathname string
    563  *
    564  * DESCRIPTION: Merge two pathnames that (probably) have common elements, to
    565  *              arrive at a minimal length string. Merge can occur if the
    566  *              FilePathname is relative to the PrefixDir.
    567  *
    568  ******************************************************************************/
    569 
    570 char *
    571 FlMergePathnames (
    572     char                    *PrefixDir,
    573     char                    *FilePathname)
    574 {
    575     char                    *CommonPath;
    576     char                    *Pathname;
    577     char                    *LastElement;
    578 
    579 
    580     DbgPrint (ASL_PARSE_OUTPUT, "Include: Prefix path - \"%s\"\n"
    581         "Include: FilePathname - \"%s\"\n",
    582          PrefixDir, FilePathname);
    583 
    584     /*
    585      * If there is no prefix directory or if the file pathname is absolute,
    586      * just return the original file pathname
    587      */
    588     if (!PrefixDir || (!*PrefixDir) ||
    589         (*FilePathname == '/') ||
    590          (FilePathname[1] == ':'))
    591     {
    592         Pathname = UtLocalCacheCalloc (strlen (FilePathname) + 1);
    593         strcpy (Pathname, FilePathname);
    594         goto ConvertBackslashes;
    595     }
    596 
    597     /* Need a local copy of the prefix directory path */
    598 
    599     CommonPath = UtLocalCacheCalloc (strlen (PrefixDir) + 1);
    600     strcpy (CommonPath, PrefixDir);
    601 
    602     /*
    603      * Walk forward through the file path, and simultaneously backward
    604      * through the prefix directory path until there are no more
    605      * relative references at the start of the file path.
    606      */
    607     while (*FilePathname && (!strncmp (FilePathname, "../", 3)))
    608     {
    609         /* Remove last element of the prefix directory path */
    610 
    611         LastElement = strrchr (CommonPath, '/');
    612         if (!LastElement)
    613         {
    614             goto ConcatenatePaths;
    615         }
    616 
    617         *LastElement = 0;   /* Terminate CommonPath string */
    618         FilePathname += 3;  /* Point to next path element */
    619     }
    620 
    621     /*
    622      * Remove the last element of the prefix directory path (it is the same as
    623      * the first element of the file pathname), and build the final merged
    624      * pathname.
    625      */
    626     LastElement = strrchr (CommonPath, '/');
    627     if (LastElement)
    628     {
    629         *LastElement = 0;
    630     }
    631 
    632     /* Build the final merged pathname */
    633 
    634 ConcatenatePaths:
    635     Pathname = UtLocalCacheCalloc (
    636         strlen (CommonPath) + strlen (FilePathname) + 2);
    637     if (LastElement && *CommonPath)
    638     {
    639         strcpy (Pathname, CommonPath);
    640         strcat (Pathname, "/");
    641     }
    642     strcat (Pathname, FilePathname);
    643 
    644     /* Convert all backslashes to normal slashes */
    645 
    646 ConvertBackslashes:
    647     UtConvertBackslashes (Pathname);
    648 
    649     DbgPrint (ASL_PARSE_OUTPUT, "Include: Merged Pathname - \"%s\"\n",
    650          Pathname);
    651     return (Pathname);
    652 }
    653 
    654 
    655 /*******************************************************************************
    656  *
    657  * FUNCTION:    FlOpenIncludeWithPrefix
    658  *
    659  * PARAMETERS:  PrefixDir       - Prefix directory pathname. Can be a zero
    660  *                                length string.
    661  *              Filename        - The include filename from the source ASL.
    662  *
    663  * RETURN:      Valid file descriptor if successful. Null otherwise.
    664  *
    665  * DESCRIPTION: Open an include file and push it on the input file stack.
    666  *
    667  ******************************************************************************/
    668 
    669 static FILE *
    670 FlOpenIncludeWithPrefix (
    671     char                    *PrefixDir,
    672     ACPI_PARSE_OBJECT       *Op,
    673     char                    *Filename)
    674 {
    675     FILE                    *IncludeFile;
    676     char                    *Pathname;
    677     UINT32                  OriginalLineNumber;
    678 
    679 
    680     /* Build the full pathname to the file */
    681 
    682     Pathname = FlMergePathnames (PrefixDir, Filename);
    683 
    684     DbgPrint (ASL_PARSE_OUTPUT, "Include: Opening file - \"%s\"\n\n",
    685         Pathname);
    686 
    687     /* Attempt to open the file, push if successful */
    688 
    689     IncludeFile = fopen (Pathname, "r");
    690     if (!IncludeFile)
    691     {
    692         return (NULL);
    693     }
    694 
    695     /*
    696      * Check the entire include file for any # preprocessor directives.
    697      * This is because there may be some confusion between the #include
    698      * preprocessor directive and the ASL Include statement. A file included
    699      * by the ASL include cannot contain preprocessor directives because
    700      * the preprocessor has already run by the time the ASL include is
    701      * recognized (by the compiler, not the preprocessor.)
    702      *
    703      * Note: DtGetNextLine strips/ignores comments.
    704      * Save current line number since DtGetNextLine modifies it.
    705      */
    706     AslGbl_CurrentLineNumber--;
    707     OriginalLineNumber = AslGbl_CurrentLineNumber;
    708 
    709     while (DtGetNextLine (IncludeFile, DT_ALLOW_MULTILINE_QUOTES) != ASL_EOF)
    710     {
    711         if (AslGbl_CurrentLineBuffer[0] == '#')
    712         {
    713             AslError (ASL_ERROR, ASL_MSG_INCLUDE_FILE,
    714                 Op, "use #include instead");
    715         }
    716     }
    717 
    718     AslGbl_CurrentLineNumber = OriginalLineNumber;
    719 
    720     /* Must seek back to the start of the file */
    721 
    722     fseek (IncludeFile, 0, SEEK_SET);
    723 
    724     /* Push the include file on the open input file stack */
    725 
    726     AslPushInputFileStack (IncludeFile, Pathname);
    727     return (IncludeFile);
    728 }
    729 
    730 
    731 /*******************************************************************************
    732  *
    733  * FUNCTION:    FlOpenIncludeFile
    734  *
    735  * PARAMETERS:  Op        - Parse node for the INCLUDE ASL statement
    736  *
    737  * RETURN:      None.
    738  *
    739  * DESCRIPTION: Open an include file and push it on the input file stack.
    740  *
    741  ******************************************************************************/
    742 
    743 void
    744 FlOpenIncludeFile (
    745     ACPI_PARSE_OBJECT       *Op)
    746 {
    747     FILE                    *IncludeFile;
    748     ASL_INCLUDE_DIR         *NextDir;
    749 
    750 
    751     /* Op must be valid */
    752 
    753     if (!Op)
    754     {
    755         AslCommonError (ASL_ERROR, ASL_MSG_INCLUDE_FILE_OPEN,
    756             AslGbl_CurrentLineNumber, AslGbl_LogicalLineNumber,
    757             AslGbl_InputByteCount, AslGbl_CurrentColumn,
    758             AslGbl_Files[ASL_FILE_INPUT].Filename, " - Null parse node");
    759 
    760         return;
    761     }
    762 
    763     /*
    764      * Flush out the "include ()" statement on this line, start
    765      * the actual include file on the next line
    766      */
    767     AslResetCurrentLineBuffer ();
    768     FlPrintFile (ASL_FILE_SOURCE_OUTPUT, "\n");
    769     AslGbl_CurrentLineOffset++;
    770 
    771 
    772     /* Attempt to open the include file */
    773 
    774     /* If the file specifies an absolute path, just open it */
    775 
    776     if ((Op->Asl.Value.String[0] == '/')  ||
    777         (Op->Asl.Value.String[0] == '\\') ||
    778         (Op->Asl.Value.String[1] == ':'))
    779     {
    780         IncludeFile = FlOpenIncludeWithPrefix ("", Op, Op->Asl.Value.String);
    781         if (!IncludeFile)
    782         {
    783             goto ErrorExit;
    784         }
    785         return;
    786     }
    787 
    788     /*
    789      * The include filename is not an absolute path.
    790      *
    791      * First, search for the file within the "local" directory -- meaning
    792      * the same directory that contains the source file.
    793      *
    794      * Construct the file pathname from the global directory name.
    795      */
    796     IncludeFile = FlOpenIncludeWithPrefix (
    797         AslGbl_DirectoryPath, Op, Op->Asl.Value.String);
    798     if (IncludeFile)
    799     {
    800         return;
    801     }
    802 
    803     /*
    804      * Second, search for the file within the (possibly multiple) directories
    805      * specified by the -I option on the command line.
    806      */
    807     NextDir = AslGbl_IncludeDirList;
    808     while (NextDir)
    809     {
    810         IncludeFile = FlOpenIncludeWithPrefix (
    811             NextDir->Dir, Op, Op->Asl.Value.String);
    812         if (IncludeFile)
    813         {
    814             return;
    815         }
    816 
    817         NextDir = NextDir->Next;
    818     }
    819 
    820     /* We could not open the include file after trying very hard */
    821 
    822 ErrorExit:
    823     snprintf (AslGbl_MsgBuffer, sizeof(AslGbl_MsgBuffer), "%s, %s", Op->Asl.Value.String, strerror (errno));
    824     AslError (ASL_ERROR, ASL_MSG_INCLUDE_FILE_OPEN, Op, AslGbl_MsgBuffer);
    825 }
    826 
    827 
    828 /*******************************************************************************
    829  *
    830  * FUNCTION:    FlOpenInputFile
    831  *
    832  * PARAMETERS:  InputFilename       - The user-specified ASL source file to be
    833  *                                    compiled
    834  *
    835  * RETURN:      Status
    836  *
    837  * DESCRIPTION: Open the specified input file, and save the directory path to
    838  *              the file so that include files can be opened in the same
    839  *              directory. NOTE: File is opened in text mode.
    840  *
    841  ******************************************************************************/
    842 
    843 ACPI_STATUS
    844 FlOpenInputFile (
    845     char                    *InputFilename)
    846 {
    847 
    848     /* Open the input ASL file, text mode */
    849 
    850     FlOpenFile (ASL_FILE_INPUT, InputFilename, "rt");
    851     AslCompilerin = AslGbl_Files[ASL_FILE_INPUT].Handle;
    852 
    853     return (AE_OK);
    854 }
    855 
    856 
    857 /*******************************************************************************
    858  *
    859  * FUNCTION:    FlOpenAmlOutputFile
    860  *
    861  * PARAMETERS:  FilenamePrefix       - The user-specified ASL source file
    862  *
    863  * RETURN:      Status
    864  *
    865  * DESCRIPTION: Create the output filename (*.AML) and open the file. The file
    866  *              is created in the same directory as the parent input file.
    867  *
    868  ******************************************************************************/
    869 
    870 ACPI_STATUS
    871 FlOpenAmlOutputFile (
    872     char                    *FilenamePrefix)
    873 {
    874     char                    *Filename;
    875 
    876 
    877     /* Output filename usually comes from the ASL itself */
    878 
    879     Filename = AslGbl_Files[ASL_FILE_AML_OUTPUT].Filename;
    880     if (!Filename)
    881     {
    882         /* Create the output AML filename */
    883         if (!AcpiGbl_CaptureComments)
    884         {
    885             Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_AML_CODE);
    886         }
    887         else
    888         {
    889             Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_CONVERT_AML);
    890         }
    891         if (!Filename)
    892         {
    893             AslCommonError (ASL_ERROR, ASL_MSG_OUTPUT_FILENAME,
    894                 0, 0, 0, 0, NULL, NULL);
    895             return (AE_ERROR);
    896         }
    897 
    898         AslGbl_Files[ASL_FILE_AML_OUTPUT].Filename = Filename;
    899     }
    900 
    901     /* Open the output AML file in binary mode */
    902 
    903     FlOpenFile (ASL_FILE_AML_OUTPUT, Filename, "w+b");
    904     return (AE_OK);
    905 }
    906 
    907 
    908 /*******************************************************************************
    909  *
    910  * FUNCTION:    FlOpenMiscOutputFiles
    911  *
    912  * PARAMETERS:  FilenamePrefix       - The user-specified ASL source file
    913  *
    914  * RETURN:      Status
    915  *
    916  * DESCRIPTION: Create and open the various output files needed, depending on
    917  *              the command line options
    918  *
    919  ******************************************************************************/
    920 
    921 ACPI_STATUS
    922 FlOpenMiscOutputFiles (
    923     char                    *FilenamePrefix)
    924 {
    925     char                    *Filename;
    926 
    927 
    928      /* Create/Open a map file if requested */
    929 
    930     if (AslGbl_MapfileFlag)
    931     {
    932         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_MAP);
    933         if (!Filename)
    934         {
    935             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
    936                 0, 0, 0, 0, NULL, NULL);
    937             return (AE_ERROR);
    938         }
    939 
    940         /* Open the hex file, text mode (closed at compiler exit) */
    941 
    942         FlOpenFile (ASL_FILE_MAP_OUTPUT, Filename, "w+t");
    943 
    944         AslCompilerSignon (ASL_FILE_MAP_OUTPUT);
    945         AslCompilerFileHeader (ASL_FILE_MAP_OUTPUT);
    946     }
    947 
    948     /* All done for disassembler */
    949 
    950     if (AslGbl_FileType == ASL_INPUT_TYPE_BINARY_ACPI_TABLE)
    951     {
    952         return (AE_OK);
    953     }
    954 
    955     /* Create/Open a hex output file if asked */
    956 
    957     if (AslGbl_HexOutputFlag)
    958     {
    959         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_HEX_DUMP);
    960         if (!Filename)
    961         {
    962             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
    963                 0, 0, 0, 0, NULL, NULL);
    964             return (AE_ERROR);
    965         }
    966 
    967         /* Open the hex file, text mode */
    968 
    969         FlOpenFile (ASL_FILE_HEX_OUTPUT, Filename, "w+t");
    970 
    971         AslCompilerSignon (ASL_FILE_HEX_OUTPUT);
    972         AslCompilerFileHeader (ASL_FILE_HEX_OUTPUT);
    973     }
    974 
    975     /* Create/Open a debug output file if asked */
    976 
    977     if (AslGbl_DebugFlag)
    978     {
    979         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_DEBUG);
    980         if (!Filename)
    981         {
    982             AslCommonError (ASL_ERROR, ASL_MSG_DEBUG_FILENAME,
    983                 0, 0, 0, 0, NULL, NULL);
    984             return (AE_ERROR);
    985         }
    986 
    987         /* Open the debug file as STDERR, text mode */
    988 
    989         AslGbl_Files[ASL_FILE_DEBUG_OUTPUT].Filename = Filename;
    990         AslGbl_Files[ASL_FILE_DEBUG_OUTPUT].Handle =
    991             freopen (Filename, "w+t", stderr);
    992 
    993         if (!AslGbl_Files[ASL_FILE_DEBUG_OUTPUT].Handle)
    994         {
    995             /*
    996              * A problem with freopen is that on error, we no longer
    997              * have stderr and cannot emit normal error messages.
    998              * Emit error to stdout, close files, and exit.
    999              */
   1000             fprintf (stdout,
   1001                 "\nCould not open debug output file: %s\n\n", Filename);
   1002 
   1003             CmCleanupAndExit ();
   1004             exit (1);
   1005         }
   1006 
   1007         AslCompilerSignon (ASL_FILE_DEBUG_OUTPUT);
   1008         AslCompilerFileHeader (ASL_FILE_DEBUG_OUTPUT);
   1009     }
   1010 
   1011     /* Create/Open a cross-reference output file if asked */
   1012 
   1013     if (AslGbl_CrossReferenceOutput)
   1014     {
   1015         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_XREF);
   1016         if (!Filename)
   1017         {
   1018             AslCommonError (ASL_ERROR, ASL_MSG_DEBUG_FILENAME,
   1019                 0, 0, 0, 0, NULL, NULL);
   1020             return (AE_ERROR);
   1021         }
   1022 
   1023         FlOpenFile (ASL_FILE_XREF_OUTPUT, Filename, "w+t");
   1024 
   1025         AslCompilerSignon (ASL_FILE_XREF_OUTPUT);
   1026         AslCompilerFileHeader (ASL_FILE_XREF_OUTPUT);
   1027     }
   1028 
   1029     /* Create/Open a listing output file if asked */
   1030 
   1031     if (AslGbl_ListingFlag)
   1032     {
   1033         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_LISTING);
   1034         if (!Filename)
   1035         {
   1036             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1037                 0, 0, 0, 0, NULL, NULL);
   1038             return (AE_ERROR);
   1039         }
   1040 
   1041         /* Open the listing file, text mode */
   1042 
   1043         FlOpenFile (ASL_FILE_LISTING_OUTPUT, Filename, "w+t");
   1044 
   1045         AslCompilerSignon (ASL_FILE_LISTING_OUTPUT);
   1046         AslCompilerFileHeader (ASL_FILE_LISTING_OUTPUT);
   1047     }
   1048 
   1049     /* Create the preprocessor output temp file if preprocessor enabled */
   1050 
   1051     if (AslGbl_PreprocessFlag)
   1052     {
   1053         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_PREPROCESSOR);
   1054         if (!Filename)
   1055         {
   1056             AslCommonError (ASL_ERROR, ASL_MSG_PREPROCESSOR_FILENAME,
   1057                 0, 0, 0, 0, NULL, NULL);
   1058             return (AE_ERROR);
   1059         }
   1060 
   1061         FlOpenFile (ASL_FILE_PREPROCESSOR, Filename, "w+t");
   1062     }
   1063 
   1064     /*
   1065      * Create the "user" preprocessor output file if -li flag set.
   1066      * Note, this file contains no embedded #line directives.
   1067      */
   1068     if (AslGbl_PreprocessorOutputFlag)
   1069     {
   1070         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_PREPROC_USER);
   1071         if (!Filename)
   1072         {
   1073             AslCommonError (ASL_ERROR, ASL_MSG_PREPROCESSOR_FILENAME,
   1074                 0, 0, 0, 0, NULL, NULL);
   1075             return (AE_ERROR);
   1076         }
   1077 
   1078         FlOpenFile (ASL_FILE_PREPROCESSOR_USER, Filename, "w+t");
   1079     }
   1080 
   1081     /* All done for data table compiler */
   1082 
   1083     if (AslGbl_FileType == ASL_INPUT_TYPE_ASCII_DATA)
   1084     {
   1085         return (AE_OK);
   1086     }
   1087 
   1088     /* Create/Open a combined source output file */
   1089 
   1090     Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_SOURCE);
   1091     if (!Filename)
   1092     {
   1093         AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1094             0, 0, 0, 0, NULL, NULL);
   1095         return (AE_ERROR);
   1096     }
   1097 
   1098     /*
   1099      * Open the source output file, binary mode (so that LF does not get
   1100      * expanded to CR/LF on some systems, messing up our seek
   1101      * calculations.)
   1102      */
   1103     FlOpenFile (ASL_FILE_SOURCE_OUTPUT, Filename, "w+b");
   1104 
   1105 /*
   1106 // TBD: TEMP
   1107 //    AslCompilerin = AslGbl_Files[ASL_FILE_SOURCE_OUTPUT].Handle;
   1108 */
   1109     /* Create/Open a assembly code source output file if asked */
   1110 
   1111     if (AslGbl_AsmOutputFlag)
   1112     {
   1113         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_ASM_SOURCE);
   1114         if (!Filename)
   1115         {
   1116             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1117                 0, 0, 0, 0, NULL, NULL);
   1118             return (AE_ERROR);
   1119         }
   1120 
   1121         /* Open the assembly code source file, text mode */
   1122 
   1123         FlOpenFile (ASL_FILE_ASM_SOURCE_OUTPUT, Filename, "w+t");
   1124 
   1125         AslCompilerSignon (ASL_FILE_ASM_SOURCE_OUTPUT);
   1126         AslCompilerFileHeader (ASL_FILE_ASM_SOURCE_OUTPUT);
   1127     }
   1128 
   1129     /* Create/Open a C code source output file if asked */
   1130 
   1131     if (AslGbl_C_OutputFlag)
   1132     {
   1133         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_C_SOURCE);
   1134         if (!Filename)
   1135         {
   1136             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1137                 0, 0, 0, 0, NULL, NULL);
   1138             return (AE_ERROR);
   1139         }
   1140 
   1141         /* Open the C code source file, text mode */
   1142 
   1143         FlOpenFile (ASL_FILE_C_SOURCE_OUTPUT, Filename, "w+t");
   1144 
   1145         FlPrintFile (ASL_FILE_C_SOURCE_OUTPUT, "/*\n");
   1146         AslCompilerSignon (ASL_FILE_C_SOURCE_OUTPUT);
   1147         AslCompilerFileHeader (ASL_FILE_C_SOURCE_OUTPUT);
   1148     }
   1149 
   1150     /* Create/Open a C code source output file for the offset table if asked */
   1151 
   1152     if (AslGbl_C_OffsetTableFlag)
   1153     {
   1154         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_C_OFFSET);
   1155         if (!Filename)
   1156         {
   1157             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1158                 0, 0, 0, 0, NULL, NULL);
   1159             return (AE_ERROR);
   1160         }
   1161 
   1162         /* Open the C code source file, text mode */
   1163 
   1164         FlOpenFile (ASL_FILE_C_OFFSET_OUTPUT, Filename, "w+t");
   1165 
   1166         FlPrintFile (ASL_FILE_C_OFFSET_OUTPUT, "/*\n");
   1167         AslCompilerSignon (ASL_FILE_C_OFFSET_OUTPUT);
   1168         AslCompilerFileHeader (ASL_FILE_C_OFFSET_OUTPUT);
   1169     }
   1170 
   1171     /* Create/Open a assembly include output file if asked */
   1172 
   1173     if (AslGbl_AsmIncludeOutputFlag)
   1174     {
   1175         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_ASM_INCLUDE);
   1176         if (!Filename)
   1177         {
   1178             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1179                 0, 0, 0, 0, NULL, NULL);
   1180             return (AE_ERROR);
   1181         }
   1182 
   1183         /* Open the assembly include file, text mode */
   1184 
   1185         FlOpenFile (ASL_FILE_ASM_INCLUDE_OUTPUT, Filename, "w+t");
   1186 
   1187         AslCompilerSignon (ASL_FILE_ASM_INCLUDE_OUTPUT);
   1188         AslCompilerFileHeader (ASL_FILE_ASM_INCLUDE_OUTPUT);
   1189     }
   1190 
   1191     /* Create/Open a C include output file if asked */
   1192 
   1193     if (AslGbl_C_IncludeOutputFlag)
   1194     {
   1195         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_C_INCLUDE);
   1196         if (!Filename)
   1197         {
   1198             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1199                 0, 0, 0, 0, NULL, NULL);
   1200             return (AE_ERROR);
   1201         }
   1202 
   1203         /* Open the C include file, text mode */
   1204 
   1205         FlOpenFile (ASL_FILE_C_INCLUDE_OUTPUT, Filename, "w+t");
   1206 
   1207         FlPrintFile (ASL_FILE_C_INCLUDE_OUTPUT, "/*\n");
   1208         AslCompilerSignon (ASL_FILE_C_INCLUDE_OUTPUT);
   1209         AslCompilerFileHeader (ASL_FILE_C_INCLUDE_OUTPUT);
   1210     }
   1211 
   1212     /* Create a namespace output file if asked */
   1213 
   1214     if (AslGbl_NsOutputFlag)
   1215     {
   1216         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_NAMESPACE);
   1217         if (!Filename)
   1218         {
   1219             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1220                 0, 0, 0, 0, NULL, NULL);
   1221             return (AE_ERROR);
   1222         }
   1223 
   1224         /* Open the namespace file, text mode */
   1225 
   1226         FlOpenFile (ASL_FILE_NAMESPACE_OUTPUT, Filename, "w+t");
   1227 
   1228         AslCompilerSignon (ASL_FILE_NAMESPACE_OUTPUT);
   1229         AslCompilerFileHeader (ASL_FILE_NAMESPACE_OUTPUT);
   1230     }
   1231 
   1232     /* Create a debug file for the converter */
   1233 
   1234     if (AcpiGbl_DebugAslConversion)
   1235     {
   1236         Filename = FlGenerateFilename (FilenamePrefix, FILE_SUFFIX_CONVERT_DEBUG);
   1237         if (!Filename)
   1238         {
   1239             AslCommonError (ASL_ERROR, ASL_MSG_LISTING_FILENAME,
   1240                 0, 0, 0, 0, NULL, NULL);
   1241             return (AE_ERROR);
   1242         }
   1243 
   1244         /* Open the converter debug file, text mode */
   1245 
   1246         FlOpenFile (ASL_FILE_CONV_DEBUG_OUTPUT, Filename, "w+t");
   1247 
   1248         AslCompilerSignon (ASL_FILE_CONV_DEBUG_OUTPUT);
   1249         AslCompilerFileHeader (ASL_FILE_CONV_DEBUG_OUTPUT);
   1250 
   1251         AcpiGbl_ConvDebugFile = AslGbl_Files[ASL_FILE_CONV_DEBUG_OUTPUT].Handle;
   1252     }
   1253 
   1254     return (AE_OK);
   1255 }
   1256 
   1257 
   1258 #ifdef ACPI_OBSOLETE_FUNCTIONS
   1259 /*******************************************************************************
   1260  *
   1261  * FUNCTION:    FlParseInputPathname
   1262  *
   1263  * PARAMETERS:  InputFilename       - The user-specified ASL source file to be
   1264  *                                    compiled
   1265  *
   1266  * RETURN:      Status
   1267  *
   1268  * DESCRIPTION: Split the input path into a directory and filename part
   1269  *              1) Directory part used to open include files
   1270  *              2) Filename part used to generate output filenames
   1271  *
   1272  ******************************************************************************/
   1273 
   1274 ACPI_STATUS
   1275 FlParseInputPathname (
   1276     char                    *InputFilename)
   1277 {
   1278     char                    *Substring;
   1279 
   1280 
   1281     if (!InputFilename)
   1282     {
   1283         return (AE_OK);
   1284     }
   1285 
   1286     /* Get the path to the input filename's directory */
   1287 
   1288     AslGbl_DirectoryPath = strdup (InputFilename);
   1289     if (!AslGbl_DirectoryPath)
   1290     {
   1291         return (AE_NO_MEMORY);
   1292     }
   1293 
   1294     Substring = strrchr (AslGbl_DirectoryPath, '\\');
   1295     if (!Substring)
   1296     {
   1297         Substring = strrchr (AslGbl_DirectoryPath, '/');
   1298         if (!Substring)
   1299         {
   1300             Substring = strrchr (AslGbl_DirectoryPath, ':');
   1301         }
   1302     }
   1303 
   1304     if (!Substring)
   1305     {
   1306         AslGbl_DirectoryPath[0] = 0;
   1307         if (AslGbl_UseDefaultAmlFilename)
   1308         {
   1309             AslGbl_OutputFilenamePrefix = strdup (InputFilename);
   1310         }
   1311     }
   1312     else
   1313     {
   1314         if (AslGbl_UseDefaultAmlFilename)
   1315         {
   1316             AslGbl_OutputFilenamePrefix = strdup (Substring + 1);
   1317         }
   1318         *(Substring+1) = 0;
   1319     }
   1320 
   1321     UtConvertBackslashes (AslGbl_OutputFilenamePrefix);
   1322     return (AE_OK);
   1323 }
   1324 #endif
   1325