FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/common/adisasm.c

     /******************************************************************************
      *
      * Module Name: adisasm - Application-level disassembler routines
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, Intel Corp.
     * All rights reserved.
     *
     * 2. License
     *
     * 2.1. This is your license from Intel Corp. under its intellectual property
     * rights. You may have additional license terms from the party that provided
     * you this software, covering your right to use that party's intellectual
     * property rights.
     *
     * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
     * copy of the source code appearing in this file ("Covered Code") an
     * irrevocable, perpetual, worldwide license under Intel's copyrights in the
     * base code distributed originally by Intel ("Original Intel Code") to copy,
     * make derivatives, distribute, use and display any portion of the Covered
     * Code in any form, with the right to sublicense such rights; and
     *
     * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
     * license (with the right to sublicense), under only those claims of Intel
     * patents that are infringed by the Original Intel Code, to make, use, sell,
     * offer to sell, and import the Covered Code and derivative works thereof
     * solely to the minimum extent necessary to exercise the above copyright
     * license, and in no event shall the patent license extend to any additions
     * to or modifications of the Original Intel Code. No other license or right
     * is granted directly or by implication, estoppel or otherwise;
     *
     * The above copyright and patent license is granted only if the following
     * conditions are met:
     *
     * 3. Conditions
     *
     * 3.1. Redistribution of Source with Rights to Further Distribute Source.
     * Redistribution of source code of any substantial portion of the Covered
     * Code or modification with rights to further distribute source must include
     * the above Copyright Notice, the above License, this list of Conditions,
     * and the following Disclaimer and Export Compliance provision. In addition,
     * Licensee must cause all Covered Code to which Licensee contributes to
     * contain a file documenting the changes Licensee made to create that Covered
     * Code and the date of any change. Licensee must include in that file the
     * documentation of any changes made by any predecessor Licensee. Licensee
     * must include a prominent statement that the modification is derived,
     * directly or indirectly, from Original Intel Code.
     *
     * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
     * Redistribution of source code of any substantial portion of the Covered
     * Code or modification without rights to further distribute source must
     * include the following Disclaimer and Export Compliance provision in the
     * documentation and/or other materials provided with distribution. In
     * addition, Licensee may not authorize further sublicense of source of any
     * portion of the Covered Code, and must include terms to the effect that the
     * license from Licensee to its licensee is limited to the intellectual
     * property embodied in the software Licensee provides to its licensee, and
     * not to intellectual property embodied in modifications its licensee may
     * make.
     *
     * 3.3. Redistribution of Executable. Redistribution in executable form of any
     * substantial portion of the Covered Code or modification must reproduce the
     * above Copyright Notice, and the following Disclaimer and Export Compliance
     * provision in the documentation and/or other materials provided with the
     * distribution.
     *
     * 3.4. Intel retains all right, title, and interest in and to the Original
     * Intel Code.
     *
     * 3.5. Neither the name Intel nor any other trademark owned or controlled by
     * Intel shall be used in advertising or otherwise to promote the sale, use or
     * other dealings in products derived from or relating to the Covered Code
     * without prior written authorization from Intel.
     *
     * 4. Disclaimer and Export Compliance
     *
     * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
     * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
     * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
     * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
     * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
     * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
     * PARTICULAR PURPOSE.
     *
     * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
     * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
     * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
     * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
     * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
     * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
     * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
     * LIMITED REMEDY.
     *
     * 4.3. Licensee shall not export, either directly or indirectly, any of this
    * software or system incorporating such software without first obtaining any
    * required license or other approval from the U. S. Department of Commerce or
    * any other agency or department of the United States Government. In the
    * event Licensee exports any such software from the United States or
    * re-exports any such software from a foreign destination, Licensee shall
    * ensure that the distribution and export/re-export of the software is in
    * compliance with all laws, regulations, orders, or other restrictions of the
    * U.S. Export Administration Regulations. Licensee agrees that neither it nor
    * any of its subsidiaries will export/re-export any technical data, process,
    * software, or service, directly or indirectly, to any country for which the
    * United States government or any agency thereof requires an export license,
    * other governmental approval, or letter of assurance, without first obtaining
    * such license, approval or letter.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/compiler/aslcompiler.h>
   #include <contrib/dev/acpica/include/amlcode.h>
   #include <contrib/dev/acpica/include/acdisasm.h>
   #include <contrib/dev/acpica/include/acdispat.h>
   #include <contrib/dev/acpica/include/acnamesp.h>
   #include <contrib/dev/acpica/include/acparser.h>
   #include <contrib/dev/acpica/include/acapps.h>
   #include <contrib/dev/acpica/include/acconvert.h>
   
   
   #define _COMPONENT          ACPI_TOOLS
           ACPI_MODULE_NAME    ("adisasm")
   
   /* Local prototypes */
   
   static ACPI_STATUS
   AdDoExternalFileList (
       char                    *Filename);
   
   static ACPI_STATUS
   AdDisassembleOneTable (
       ACPI_TABLE_HEADER       *Table,
       FILE                    *File,
       char                    *Filename,
       char                    *DisasmFilename);
   
   static ACPI_STATUS
   AdReparseOneTable (
       ACPI_TABLE_HEADER       *Table,
       FILE                    *File,
       ACPI_OWNER_ID           OwnerId);
   
   
   ACPI_TABLE_DESC             LocalTables[1];
   ACPI_PARSE_OBJECT           *AcpiGbl_ParseOpRoot;
   
   
   /* Stubs for everything except ASL compiler */
   
   #ifndef ACPI_ASL_COMPILER
   BOOLEAN
   AcpiDsIsResultUsed (
       ACPI_PARSE_OBJECT       *Op,
       ACPI_WALK_STATE         *WalkState)
   {
       return (TRUE);
   }
   
   ACPI_STATUS
   AcpiDsMethodError (
       ACPI_STATUS             Status,
       ACPI_WALK_STATE         *WalkState)
   {
       return (Status);
   }
   #endif
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AdInitialize
    *
    * PARAMETERS:  None
    *
    * RETURN:      Status
    *
    * DESCRIPTION: ACPICA and local initialization
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AdInitialize (
       void)
   {
       ACPI_STATUS             Status;
   
   
       /* ACPICA subsystem initialization */
   
       Status = AcpiOsInitialize ();
       if (ACPI_FAILURE (Status))
       {
           fprintf (stderr, "Could not initialize ACPICA subsystem: %s\n",
               AcpiFormatException (Status));
   
           return (Status);
       }
   
       Status = AcpiUtInitGlobals ();
       if (ACPI_FAILURE (Status))
       {
           fprintf (stderr, "Could not initialize ACPICA globals: %s\n",
               AcpiFormatException (Status));
   
           return (Status);
       }
   
       Status = AcpiUtMutexInitialize ();
       if (ACPI_FAILURE (Status))
       {
           fprintf (stderr, "Could not initialize ACPICA mutex objects: %s\n",
               AcpiFormatException (Status));
   
           return (Status);
       }
   
       Status = AcpiNsRootInitialize ();
       if (ACPI_FAILURE (Status))
       {
           fprintf (stderr, "Could not initialize ACPICA namespace: %s\n",
               AcpiFormatException (Status));
   
           return (Status);
       }
   
       /* Setup the Table Manager (cheat - there is no RSDT) */
   
       AcpiGbl_RootTableList.MaxTableCount = 1;
       AcpiGbl_RootTableList.CurrentTableCount = 0;
       AcpiGbl_RootTableList.Tables = LocalTables;
   
       return (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AdAmlDisassemble
    *
    * PARAMETERS:  Filename            - AML input filename
    *              OutToFile           - TRUE if output should go to a file
    *              Prefix              - Path prefix for output
    *              OutFilename         - where the filename is returned
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Disassembler entry point. Disassemble an entire ACPI table.
    *
    *****************************************************************************/
   
   ACPI_STATUS
   AdAmlDisassemble (
       BOOLEAN                 OutToFile,
       char                    *Filename,
       char                    *Prefix,
       char                    **OutFilename)
   {
       ACPI_STATUS             Status;
       char                    *DisasmFilename = NULL;
       FILE                    *File = NULL;
       ACPI_TABLE_HEADER       *Table = NULL;
       ACPI_NEW_TABLE_DESC     *ListHead = NULL;
   
   
       /*
        * Input: AML code from either a file or via GetTables (memory or
        * registry)
        */
       if (Filename)
       {
           /* Get the list of all AML tables in the file */
   
           Status = AcGetAllTablesFromFile (Filename,
               ACPI_GET_ALL_TABLES, &ListHead);
           if (ACPI_FAILURE (Status))
           {
               AcpiOsPrintf ("Could not get ACPI tables from %s, %s\n",
                   Filename, AcpiFormatException (Status));
               return (Status);
           }
   
           /* Process any user-specified files for external objects */
   
           Status = AdDoExternalFileList (Filename);
           if (ACPI_FAILURE (Status))
           {
               return (Status);
           }
       }
       else
       {
           Status = AdGetLocalTables ();
           if (ACPI_FAILURE (Status))
           {
               AcpiOsPrintf ("Could not get ACPI tables, %s\n",
                   AcpiFormatException (Status));
               return (Status);
           }
   
           if (!AcpiGbl_DmOpt_Disasm)
           {
               return (AE_OK);
           }
   
           /* Obtained the local tables, just disassemble the DSDT */
   
           Status = AcpiGetTable (ACPI_SIG_DSDT, 0, &Table);
           if (ACPI_FAILURE (Status))
           {
               AcpiOsPrintf ("Could not get DSDT, %s\n",
                   AcpiFormatException (Status));
               return (Status);
           }
   
           AcpiOsPrintf ("\nDisassembly of DSDT\n");
           Prefix = AdGenerateFilename ("dsdt", Table->OemTableId);
       }
   
       /*
        * Output: ASL code. Redirect to a file if requested
        */
       if (OutToFile)
       {
           /* Create/Open a disassembly output file */
   
           DisasmFilename = FlGenerateFilename (Prefix, FILE_SUFFIX_DISASSEMBLY);
           if (!DisasmFilename)
           {
               fprintf (stderr, "Could not generate output filename\n");
               Status = AE_ERROR;
               goto Cleanup;
           }
   
           File = fopen (DisasmFilename, "w+");
           if (!File)
           {
               fprintf (stderr, "Could not open output file %s\n",
                   DisasmFilename);
               Status = AE_ERROR;
               goto Cleanup;
           }
       }
   
       *OutFilename = DisasmFilename;
   
       /* Disassemble all AML tables within the file */
   
       while (ListHead)
       {
           Status = AdDisassembleOneTable (ListHead->Table,
               File, Filename, DisasmFilename);
           if (ACPI_FAILURE (Status))
           {
               break;
           }
   
           ListHead = ListHead->Next;
       }
   
   Cleanup:
   
       if (Table &&
           !AcpiGbl_ForceAmlDisassembly &&
           !AcpiUtIsAmlTable (Table))
       {
           ACPI_FREE (Table);
       }
   
       AcDeleteTableList (ListHead);
   
       if (File)
       {
           fclose (File);
           AcpiOsRedirectOutput (stdout);
       }
   
       AcpiPsDeleteParseTree (AcpiGbl_ParseOpRoot);
       AcpiGbl_ParseOpRoot = NULL;
       return (Status);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AdDisassembleOneTable
    *
    * PARAMETERS:  Table               - Raw AML table
    *              File                - Pointer for the input file
    *              Filename            - AML input filename
    *              DisasmFilename      - Output filename
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Disassemble a single ACPI table. AML or data table.
    *
    *****************************************************************************/
   
   static ACPI_STATUS
   AdDisassembleOneTable (
       ACPI_TABLE_HEADER       *Table,
       FILE                    *File,
       char                    *Filename,
       char                    *DisasmFilename)
   {
       ACPI_STATUS             Status;
       ACPI_OWNER_ID           OwnerId;
   
   
   #ifdef ACPI_ASL_COMPILER
   
       /*
        * For ASL-/ASL+ converter: replace the temporary "XXXX"
        * table signature with the original. This "XXXX" makes
        * it harder for the AML interpreter to run the badaml
        * (.xxx) file produced from the converter in case if
        * it fails to get deleted.
        */
       if (AcpiGbl_CaptureComments)
       {
           strncpy (Table->Signature, AcpiGbl_TableSig, ACPI_NAMESEG_SIZE);
       }
   #endif
   
       /* ForceAmlDisassembly means to assume the table contains valid AML */
   
       if (!AcpiGbl_ForceAmlDisassembly && !AcpiUtIsAmlTable (Table))
       {
           if (File)
           {
               AcpiOsRedirectOutput (File);
           }
   
           AdDisassemblerHeader (Filename, ACPI_IS_DATA_TABLE);
   
           /* This is a "Data Table" (non-AML table) */
   
           AcpiOsPrintf (" * ACPI Data Table [%4.4s]\n *\n",
               AcpiGbl_CDAT ? (char *) AcpiGbl_CDAT : Table->Signature);
           AcpiOsPrintf (" * Format: [HexOffset DecimalOffset ByteLength]  "
               "FieldName : FieldValue (in hex)\n */\n\n");
   
           AcpiDmDumpDataTable (Table);
           fprintf (stderr, "Acpi Data Table [%4.4s] decoded\n",
               AcpiGbl_CDAT ? (char *) AcpiGbl_CDAT : Table->Signature);
   
           if (File)
           {
               fprintf (stderr, "Formatted output:  %s - %u bytes\n",
                   DisasmFilename, CmGetFileSize (File));
           }
   
           return (AE_OK);
       }
   
       /* Initialize the converter output file */
   
       ASL_CV_INIT_FILETREE(Table, File);
   
       /*
        * This is an AML table (DSDT or SSDT).
        * Always parse the tables, only option is what to display
        */
       Status = AdParseTable (Table, &OwnerId, TRUE, FALSE);
       if (ACPI_FAILURE (Status))
       {
           AcpiOsPrintf ("Could not parse ACPI tables, %s\n",
               AcpiFormatException (Status));
           return (Status);
       }
   
       /* Redirect output for code generation and debugging output */
   
       if (File)
       {
           AcpiOsRedirectOutput (File);
       }
   
       /* Debug output, namespace and parse tree */
   
       if (AslCompilerdebug && File)
       {
           AcpiOsPrintf ("/**** Before second load\n");
   
           NsSetupNamespaceListing (File);
           NsDisplayNamespace ();
   
           AcpiOsPrintf ("*****/\n");
       }
   
       /* Load namespace from names created within control methods */
   
       AcpiDmFinishNamespaceLoad (AcpiGbl_ParseOpRoot,
           AcpiGbl_RootNode, OwnerId);
   
       /*
        * Cross reference the namespace here, in order to
        * generate External() statements
        */
       AcpiDmCrossReferenceNamespace (AcpiGbl_ParseOpRoot,
           AcpiGbl_RootNode, OwnerId);
   
       if (AslCompilerdebug)
       {
           AcpiDmDumpTree (AcpiGbl_ParseOpRoot);
       }
   
       /* Find possible calls to external control methods */
   
       AcpiDmFindOrphanMethods (AcpiGbl_ParseOpRoot);
   
       /*
        * If we found any external control methods, we must reparse
        * the entire tree with the new information (namely, the
        * number of arguments per method)
        */
       if (AcpiDmGetUnresolvedExternalMethodCount ())
       {
           Status = AdReparseOneTable (Table, File, OwnerId);
           if (ACPI_FAILURE (Status))
           {
               return (Status);
           }
       }
   
       /*
        * Now that the namespace is finalized, we can perform namespace
        * transforms.
        *
        * 1) Convert fixed-offset references to resource descriptors
        *    to symbolic references (Note: modifies namespace)
        */
       AcpiDmConvertParseObjects (AcpiGbl_ParseOpRoot, AcpiGbl_RootNode);
   
       /* Optional displays */
   
       if (AcpiGbl_DmOpt_Disasm)
       {
           /* This is the real disassembly */
   
           AdDisplayTables (Filename, Table);
   
           /* Dump hex table if requested (-vt) */
   
           AcpiDmDumpDataTable (Table);
   
           fprintf (stderr, "Disassembly completed\n");
           if (File)
           {
               fprintf (stderr, "ASL Output:    %s - %u bytes\n",
                   DisasmFilename, CmGetFileSize (File));
           }
   
           if (AslGbl_MapfileFlag)
           {
               fprintf (stderr, "%14s %s - %u bytes\n",
                   AslGbl_FileDescs[ASL_FILE_MAP_OUTPUT].ShortDescription,
                   AslGbl_Files[ASL_FILE_MAP_OUTPUT].Filename,
                   FlGetFileSize (ASL_FILE_MAP_OUTPUT));
           }
       }
   
       return (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AdReparseOneTable
    *
    * PARAMETERS:  Table               - Raw AML table
    *              File                - Pointer for the input file
    *              OwnerId             - ID for this table
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Reparse a table that has already been loaded. Used to
    *              integrate information about external control methods.
    *              These methods may have been previously parsed incorrectly.
    *
    *****************************************************************************/
   
   static ACPI_STATUS
   AdReparseOneTable (
       ACPI_TABLE_HEADER       *Table,
       FILE                    *File,
       ACPI_OWNER_ID           OwnerId)
   {
       ACPI_STATUS             Status;
       ACPI_COMMENT_ADDR_NODE  *AddrListHead;
   
   
       fprintf (stderr,
           "\nFound %u external control methods, "
           "reparsing with new information\n",
           AcpiDmGetUnresolvedExternalMethodCount ());
   
       /* Reparse, rebuild namespace */
   
       AcpiPsDeleteParseTree (AcpiGbl_ParseOpRoot);
       AcpiGbl_ParseOpRoot = NULL;
       AcpiNsDeleteNamespaceSubtree (AcpiGbl_RootNode);
   
       AcpiGbl_RootNode                    = NULL;
       AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
       AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
       AcpiGbl_RootNodeStruct.Type         = ACPI_TYPE_DEVICE;
       AcpiGbl_RootNodeStruct.Parent       = NULL;
       AcpiGbl_RootNodeStruct.Child        = NULL;
       AcpiGbl_RootNodeStruct.Peer         = NULL;
       AcpiGbl_RootNodeStruct.Object       = NULL;
       AcpiGbl_RootNodeStruct.Flags        = 0;
   
       Status = AcpiNsRootInitialize ();
       if (ACPI_FAILURE (Status))
       {
           return (Status);
       }
   
       /* New namespace, add the external definitions first */
   
       AcpiDmAddExternalListToNamespace ();
   
       /* For -ca option: clear the list of comment addresses. */
   
       while (AcpiGbl_CommentAddrListHead)
       {
           AddrListHead= AcpiGbl_CommentAddrListHead;
           AcpiGbl_CommentAddrListHead = AcpiGbl_CommentAddrListHead->Next;
           AcpiOsFree(AddrListHead);
       }
   
       /* Parse the table again. No need to reload it, however */
   
       Status = AdParseTable (Table, NULL, FALSE, FALSE);
       if (ACPI_FAILURE (Status))
       {
           AcpiOsPrintf ("Could not parse ACPI tables, %s\n",
               AcpiFormatException (Status));
           return (Status);
       }
   
       /* Cross reference the namespace again */
   
       AcpiDmFinishNamespaceLoad (AcpiGbl_ParseOpRoot,
           AcpiGbl_RootNode, OwnerId);
   
       AcpiDmCrossReferenceNamespace (AcpiGbl_ParseOpRoot,
           AcpiGbl_RootNode, OwnerId);
   
       /* Debug output - namespace and parse tree */
   
       if (AslCompilerdebug)
       {
           AcpiOsPrintf ("/**** After second load and resource conversion\n");
           if (File)
           {
               NsSetupNamespaceListing (File);
               NsDisplayNamespace ();
           }
   
           AcpiOsPrintf ("*****/\n");
           AcpiDmDumpTree (AcpiGbl_ParseOpRoot);
       }
   
       return (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AdDoExternalFileList
    *
    * PARAMETERS:  Filename            - Input file for the table
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Process all tables found in the -e external files list
    *
    *****************************************************************************/
   
   static ACPI_STATUS
   AdDoExternalFileList (
       char                    *Filename)
   {
       ACPI_EXTERNAL_FILE      *ExternalFileList;
       char                    *ExternalFilename;
       ACPI_NEW_TABLE_DESC     *ExternalListHead = NULL;
       ACPI_STATUS             Status;
       ACPI_STATUS             GlobalStatus = AE_OK;
       ACPI_OWNER_ID           OwnerId;
   
   
       /*
        * External filenames are specified on the command line like this:
        * Example: iasl -e file1,file2,file3 -d xxx.aml
        */
       ExternalFileList = AcpiGbl_ExternalFileList;
   
       /* Process each external file */
   
       while (ExternalFileList)
       {
           ExternalFilename = ExternalFileList->Path;
           if (!strcmp (ExternalFilename, Filename))
           {
               /* Next external file */
   
               ExternalFileList = ExternalFileList->Next;
               continue;
           }
   
           AcpiOsPrintf ("External object resolution file %16s\n",
               ExternalFilename);
   
           Status = AcGetAllTablesFromFile (
               ExternalFilename, ACPI_GET_ONLY_AML_TABLES, &ExternalListHead);
           if (ACPI_FAILURE (Status))
           {
               if (Status == AE_TYPE)
               {
                   ExternalFileList = ExternalFileList->Next;
                   GlobalStatus = AE_TYPE;
                   continue;
               }
   
               AcDeleteTableList (ExternalListHead);
               return (Status);
           }
   
           /* Load external tables for symbol resolution */
   
           while (ExternalListHead)
           {
               Status = AdParseTable (
                   ExternalListHead->Table, &OwnerId, TRUE, TRUE);
               if (ACPI_FAILURE (Status))
               {
                   AcpiOsPrintf ("Could not parse external ACPI tables, %s\n",
                       AcpiFormatException (Status));
                   AcDeleteTableList (ExternalListHead);
                   return (Status);
               }
   
               /*
                * Load namespace from names created within control methods
                * Set owner id of nodes in external table
                */
               AcpiDmFinishNamespaceLoad (AcpiGbl_ParseOpRoot,
                   AcpiGbl_RootNode, OwnerId);
               AcpiPsDeleteParseTree (AcpiGbl_ParseOpRoot);
   
               ExternalListHead = ExternalListHead->Next;
           }
   
           /* Next external file */
   
           ExternalFileList = ExternalFileList->Next;
       }
   
       AcDeleteTableList (ExternalListHead);
   
       if (ACPI_FAILURE (GlobalStatus))
       {
           return (GlobalStatus);
       }
   
       /* Clear external list generated by Scope in external tables */
   
       if (AcpiGbl_ExternalFileList)
       {
           AcpiDmClearExternalList ();
       }
   
       /* Load any externals defined in the optional external ref file */
   
       AcpiDmGetExternalsFromFile ();
       return (AE_OK);
   }

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