C++ ACPI_COMPARE_NAME函数代码示例

static void
AdCreateTableHeader (
    char                    *Filename,
    ACPI_TABLE_HEADER       *Table)
{
    char                    *NewFilename;
    UINT8                   Checksum;


    /*
     * Print file header and dump original table header
     */
    AdDisassemblerHeader (Filename);

    AcpiOsPrintf (" * Original Table Header:\n");
    AcpiOsPrintf (" *     Signature        \"%4.4s\"\n",    Table->Signature);
    AcpiOsPrintf (" *     Length           0x%8.8X (%u)\n", Table->Length, Table->Length);

    /* Print and validate the revision */

    AcpiOsPrintf (" *     Revision         0x%2.2X",      Table->Revision);

    switch (Table->Revision)
    {
    case 0:

        AcpiOsPrintf (" **** Invalid Revision");
        break;

    case 1:

        /* Revision of DSDT controls the ACPI integer width */

        if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_DSDT))
        {
            AcpiOsPrintf (" **** 32-bit table (V1), no 64-bit math support");
        }
        break;

    default:

        break;
    }
    AcpiOsPrintf ("\n");

    /* Print and validate the table checksum */

    AcpiOsPrintf (" *     Checksum         0x%2.2X",        Table->Checksum);

    Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Table->Length);
    if (Checksum)
    {
        AcpiOsPrintf (" **** Incorrect checksum, should be 0x%2.2X",
            (UINT8) (Table->Checksum - Checksum));
    }
    AcpiOsPrintf ("\n");

    AcpiOsPrintf (" *     OEM ID           \"%.6s\"\n",     Table->OemId);
    AcpiOsPrintf (" *     OEM Table ID     \"%.8s\"\n",     Table->OemTableId);
    AcpiOsPrintf (" *     OEM Revision     0x%8.8X (%u)\n", Table->OemRevision, Table->OemRevision);
    AcpiOsPrintf (" *     Compiler ID      \"%.4s\"\n",     Table->AslCompilerId);
    AcpiOsPrintf (" *     Compiler Version 0x%8.8X (%u)\n", Table->AslCompilerRevision, Table->AslCompilerRevision);
    AcpiOsPrintf (" */\n");

    /* Create AML output filename based on input filename */

    if (Filename)
    {
        NewFilename = FlGenerateFilename (Filename, "aml");
    }
    else
    {
        NewFilename = ACPI_ALLOCATE_ZEROED (9);
        if (NewFilename)
        {
            strncat (NewFilename, Table->Signature, 4);
            strcat (NewFilename, ".aml");
        }
    }

    if (!NewFilename)
    {
        AcpiOsPrintf (" **** Could not generate AML output filename\n");
        return;
    }

    /* Open the ASL definition block */

    AcpiOsPrintf (
        "DefinitionBlock (\"%s\", \"%4.4s\", %hu, \"%.6s\", \"%.8s\", 0x%8.8X)\n",
        NewFilename, Table->Signature, Table->Revision,
        Table->OemId, Table->OemTableId, Table->OemRevision);

    ACPI_FREE (NewFilename);
}

static ACPI_STATUS
OslAddTablesToList(
    void)
{
    ACPI_PHYSICAL_ADDRESS   TableAddress;
    OSL_TABLE_INFO          *Info = NULL;
    OSL_TABLE_INFO          *NewInfo;
    ACPI_TABLE_HEADER       *Table;
    UINT8                   Instance;
    UINT8                   NumberOfTables;
    int                     i;


    /* Initialize the table list on first invocation */

    if (Gbl_TableListInitialized)
    {
        return (AE_OK);
    }

    /* Add mandatory tables to global table list first */

    for (i = 0; i < 4; i++)
    {
        NewInfo = calloc (1, sizeof (*NewInfo));
        if (!NewInfo)
        {
            return (AE_NO_MEMORY);
        }

        switch (i) {
        case 0:

            Gbl_TableListHead = Info = NewInfo;
            continue;

        case 1:

            ACPI_MOVE_NAME (NewInfo->Signature,
                Gbl_Revision ? ACPI_SIG_XSDT : ACPI_SIG_RSDT);
            break;

        case 2:

            ACPI_MOVE_NAME (NewInfo->Signature, ACPI_SIG_FACS);
            break;

        default:

            ACPI_MOVE_NAME (NewInfo->Signature, ACPI_SIG_DSDT);

        }

        Info->Next = NewInfo;
        Info = NewInfo;
        Gbl_TableListHead->Instance++;
    }

    /* Add normal tables from RSDT/XSDT to global list */

    if (Gbl_Revision)
    {
        NumberOfTables =
            (Gbl_Xsdt->Header.Length - sizeof (Gbl_Xsdt->Header))
            / sizeof (Gbl_Xsdt->TableOffsetEntry[0]);
    }
    else
    {
        NumberOfTables =
            (Gbl_Rsdt->Header.Length - sizeof (Gbl_Rsdt->Header))
            / sizeof (Gbl_Rsdt->TableOffsetEntry[0]);
    }

    for (i = 0; i < NumberOfTables; i++)
    {
        if (Gbl_Revision)
        {
            TableAddress = Gbl_Xsdt->TableOffsetEntry[i];
        }
        else
        {
            TableAddress = Gbl_Rsdt->TableOffsetEntry[i];
        }

        Table = AcpiOsMapMemory (TableAddress, sizeof (*Table));
        if (!Table)
        {
            return (AE_BAD_ADDRESS);
        }

        Instance = 0;
        NewInfo = Gbl_TableListHead;
        while (NewInfo->Next != NULL)
        {
            NewInfo = NewInfo->Next;
            if (ACPI_COMPARE_NAME (Table->Signature, NewInfo->Signature))
            {
                Instance++;
            }
        }
//.........这里部分代码省略.........

static ACPI_STATUS
AcpiTbLoadNamespace (
    void)
{
    ACPI_STATUS             Status;
    UINT32                  i;
    ACPI_TABLE_HEADER       *NewDsdt;


    ACPI_FUNCTION_TRACE (TbLoadNamespace);


    (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);

    /*
     * Load the namespace. The DSDT is required, but any SSDT and
     * PSDT tables are optional. Verify the DSDT.
     */
    if (!AcpiGbl_RootTableList.CurrentTableCount ||
        !ACPI_COMPARE_NAME (
            &(AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Signature),
            ACPI_SIG_DSDT) ||
         ACPI_FAILURE (AcpiTbVerifyTable (
            &AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT])))
    {
        Status = AE_NO_ACPI_TABLES;
        goto UnlockAndExit;
    }

    /*
     * Save the DSDT pointer for simple access. This is the mapped memory
     * address. We must take care here because the address of the .Tables
     * array can change dynamically as tables are loaded at run-time. Note:
     * .Pointer field is not validated until after call to AcpiTbVerifyTable.
     */
    AcpiGbl_DSDT = AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Pointer;

    /*
     * Optionally copy the entire DSDT to local memory (instead of simply
     * mapping it.) There are some BIOSs that corrupt or replace the original
     * DSDT, creating the need for this option. Default is FALSE, do not copy
     * the DSDT.
     */
    if (AcpiGbl_CopyDsdtLocally)
    {
        NewDsdt = AcpiTbCopyDsdt (ACPI_TABLE_INDEX_DSDT);
        if (NewDsdt)
        {
            AcpiGbl_DSDT = NewDsdt;
        }
    }

    /*
     * Save the original DSDT header for detection of table corruption
     * and/or replacement of the DSDT from outside the OS.
     */
    ACPI_MEMCPY (&AcpiGbl_OriginalDsdtHeader, AcpiGbl_DSDT,
        sizeof (ACPI_TABLE_HEADER));

    (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);

    /* Load and parse tables */

    Status = AcpiNsLoadTable (ACPI_TABLE_INDEX_DSDT, AcpiGbl_RootNode);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */

    (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
    for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
    {
        if ((!ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature),
                    ACPI_SIG_SSDT) &&
             !ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature),
                    ACPI_SIG_PSDT)) ||
             ACPI_FAILURE (AcpiTbVerifyTable (
                &AcpiGbl_RootTableList.Tables[i])))
        {
            continue;
        }

        /* Ignore errors while loading tables, get as many as possible */

        (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
        (void) AcpiNsLoadTable (i, AcpiGbl_RootNode);
        (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));

UnlockAndExit:
    (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
    return_ACPI_STATUS (Status);
}

//.........这里部分代码省略.........

    if (*Name == '*')
    {
        (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT,
                    ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL);
        return;
    }
    else
    {
        NameString = ACPI_ALLOCATE (strlen (Name) + 1);
        if (!NameString)
        {
            return;
        }

        memset (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));

        strcpy (NameString, Name);
        AcpiUtStrupr (NameString);
        AcpiGbl_DbMethodInfo.Name = NameString;
        AcpiGbl_DbMethodInfo.Args = Args;
        AcpiGbl_DbMethodInfo.Types = Types;
        AcpiGbl_DbMethodInfo.Flags = Flags;

        ReturnObj.Pointer = NULL;
        ReturnObj.Length = ACPI_ALLOCATE_BUFFER;

        Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
        if (ACPI_FAILURE (Status))
        {
            ACPI_FREE (NameString);
            return;
        }

        /* Get the NS node, determines existence also */

        Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname,
            &AcpiGbl_DbMethodInfo.Method);
        if (ACPI_SUCCESS (Status))
        {
            Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);
        }
        ACPI_FREE (NameString);
    }

    /*
     * Allow any handlers in separate threads to complete.
     * (Such as Notify handlers invoked from AML executed above).
     */
    AcpiOsSleep ((UINT64) 10);

#ifdef ACPI_DEBUG_OUTPUT

    /* Memory allocation tracking */

    Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;

    AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);

    if (Allocations > 0)
    {
        AcpiOsPrintf ("0x%X Outstanding allocations after evaluation of %s\n",
                        Allocations, AcpiGbl_DbMethodInfo.Pathname);
    }
#endif

    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Evaluation of %s failed with status %s\n",
            AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
    }
    else
    {
        /* Display a return object, if any */

        if (ReturnObj.Length)
        {
            AcpiOsPrintf (
                "Evaluation of %s returned object %p, external buffer length %X\n",
                AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer,
                (UINT32) ReturnObj.Length);
            AcpiDbDumpExternalObject (ReturnObj.Pointer, 1);

            /* Dump a _PLD buffer if present */

            if (ACPI_COMPARE_NAME ((ACPI_CAST_PTR (ACPI_NAMESPACE_NODE,
                    AcpiGbl_DbMethodInfo.Method)->Name.Ascii), METHOD_NAME__PLD))
            {
                AcpiDbDumpPldBuffer (ReturnObj.Pointer);
            }
        }
        else
        {
            AcpiOsPrintf ("No object was returned from evaluation of %s\n",
                AcpiGbl_DbMethodInfo.Pathname);
        }
    }

    AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}

ACPI_STATUS
AcpiOsGetTableByName (
    char                    *Signature,
    UINT32                  Instance,
    ACPI_TABLE_HEADER       **Table,
    ACPI_PHYSICAL_ADDRESS   *Address)
{
    ACPI_STATUS             Status;


    /* Instance is only valid for SSDT/UEFI tables */

    if (Instance &&
        !ACPI_COMPARE_NAME (Signature, ACPI_SIG_SSDT) &&
        !ACPI_COMPARE_NAME (Signature, ACPI_SIG_UEFI))
    {
        return (AE_LIMIT);
    }

    /* Initialize main tables */

    Status = OslTableInitialize ();
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    /*
     * If one of the main ACPI tables was requested (RSDT/XSDT/FADT),
     * simply return it immediately.
     */
    if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_XSDT))
    {
        if (!Gbl_Revision)
        {
            return (AE_NOT_FOUND);
        }

        *Address = Gbl_Rsdp.XsdtPhysicalAddress;
        *Table = (ACPI_TABLE_HEADER *) Gbl_Xsdt;
        return (AE_OK);
    }

    if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_RSDT))
    {
        if (!Gbl_Rsdp.RsdtPhysicalAddress)
        {
            return (AE_NOT_FOUND);
        }

        *Address = Gbl_Rsdp.RsdtPhysicalAddress;
        *Table = (ACPI_TABLE_HEADER *) Gbl_Rsdt;
        return (AE_OK);
    }

    if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_FADT))
    {
        *Address = Gbl_FadtAddress;
        *Table = (ACPI_TABLE_HEADER *) Gbl_Fadt;
        return (AE_OK);
    }

    /* Not a main ACPI table, attempt to extract it from the RSDT/XSDT */

    Status = OslGetTableViaRoot (Signature, Instance, Table, Address);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    return (AE_OK);
}

ACPI_STATUS
AcpiUnloadParentTable (
    ACPI_HANDLE             Object)
{
    ACPI_NAMESPACE_NODE     *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Object);
    ACPI_STATUS             Status = AE_NOT_EXIST;
    ACPI_OWNER_ID           OwnerId;
    UINT32                  i;


    ACPI_FUNCTION_TRACE (AcpiUnloadParentTable);


    /* Parameter validation */

    if (!Object)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /*
     * The node OwnerId is currently the same as the parent table ID.
     * However, this could change in the future.
     */
    OwnerId = Node->OwnerId;
    if (!OwnerId)
    {
        /* OwnerId==0 means DSDT is the owner. DSDT cannot be unloaded */

        return_ACPI_STATUS (AE_TYPE);
    }

    /* Must acquire the interpreter lock during this operation */

    Status = AcpiUtAcquireMutex (ACPI_MTX_INTERPRETER);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Find the table in the global table list */

    for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
    {
        if (OwnerId != AcpiGbl_RootTableList.Tables[i].OwnerId)
        {
            continue;
        }

        /*
         * Allow unload of SSDT and OEMx tables only. Do not allow unload
         * of the DSDT. No other types of tables should get here, since
         * only these types can contain AML and thus are the only types
         * that can create namespace objects.
         */
        if (ACPI_COMPARE_NAME (
            AcpiGbl_RootTableList.Tables[i].Signature.Ascii,
            ACPI_SIG_DSDT))
        {
            Status = AE_TYPE;
            break;
        }

        /* Ensure the table is actually loaded */

        if (!AcpiTbIsTableLoaded (i))
        {
            Status = AE_NOT_EXIST;
            break;
        }

        /* Invoke table handler if present */

        if (AcpiGbl_TableHandler)
        {
            (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_UNLOAD,
                        AcpiGbl_RootTableList.Tables[i].Pointer,
                        AcpiGbl_TableHandlerContext);
        }

        /*
         * Delete all namespace objects owned by this table. Note that
         * these objects can appear anywhere in the namespace by virtue
         * of the AML "Scope" operator. Thus, we need to track ownership
         * by an ID, not simply a position within the hierarchy.
         */
        Status = AcpiTbDeleteNamespaceByOwner (i);
        if (ACPI_FAILURE (Status))
        {
            break;
        }

        Status = AcpiTbReleaseOwnerId (i);
        AcpiTbSetTableLoadedFlag (i, FALSE);
        break;
    }

    (void) AcpiUtReleaseMutex (ACPI_MTX_INTERPRETER);
    return_ACPI_STATUS (Status);
}

static ACPI_STATUS
AcpiDbReadTable (
    FILE                    *fp,
    ACPI_TABLE_HEADER       **Table,
    UINT32                  *TableLength)
{
    ACPI_TABLE_HEADER       TableHeader;
    UINT32                  Actual;
    ACPI_STATUS             Status;
    UINT32                  FileSize;
    BOOLEAN                 StandardHeader = TRUE;


    /* Get the file size */

    FileSize = CmGetFileSize (fp);
    if (FileSize == ACPI_UINT32_MAX)
    {
        return (AE_ERROR);
    }

    if (FileSize < 4)
    {
        return (AE_BAD_HEADER);
    }

    /* Read the signature */

    if (fread (&TableHeader, 1, 4, fp) != 4)
    {
        AcpiOsPrintf ("Could not read the table signature\n");
        return (AE_BAD_HEADER);
    }

    fseek (fp, 0, SEEK_SET);

    /* The RSDP table does not have standard ACPI header */

    if (ACPI_COMPARE_NAME (TableHeader.Signature, "RSD "))
    {
        *TableLength = FileSize;
        StandardHeader = FALSE;
    }
    else
    {
        /* Read the table header */

        if (fread (&TableHeader, 1, sizeof (ACPI_TABLE_HEADER), fp) !=
                sizeof (ACPI_TABLE_HEADER))
        {
            AcpiOsPrintf ("Could not read the table header\n");
            return (AE_BAD_HEADER);
        }

#if 0
        /* Validate the table header/length */

        Status = AcpiTbValidateTableHeader (&TableHeader);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Table header is invalid!\n");
            return (Status);
        }
#endif

        /* File size must be at least as long as the Header-specified length */

        if (TableHeader.Length > FileSize)
        {
            AcpiOsPrintf (
                "TableHeader length [0x%X] greater than the input file size [0x%X]\n",
                TableHeader.Length, FileSize);

#ifdef ACPI_ASL_COMPILER
            Status = FlCheckForAscii (fp, NULL, FALSE);
            if (ACPI_SUCCESS (Status))
            {
                AcpiOsPrintf ("File appears to be ASCII only, must be binary\n",
                    TableHeader.Length, FileSize);
            }
#endif
            return (AE_BAD_HEADER);
        }

#ifdef ACPI_OBSOLETE_CODE
        /* We only support a limited number of table types */

        if (!ACPI_COMPARE_NAME ((char *) TableHeader.Signature, ACPI_SIG_DSDT) &&
            !ACPI_COMPARE_NAME ((char *) TableHeader.Signature, ACPI_SIG_PSDT) &&
            !ACPI_COMPARE_NAME ((char *) TableHeader.Signature, ACPI_SIG_SSDT))
        {
            AcpiOsPrintf ("Table signature [%4.4s] is invalid or not supported\n",
                (char *) TableHeader.Signature);
            ACPI_DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
            return (AE_ERROR);
        }
#endif

        *TableLength = TableHeader.Length;
    }
//.........这里部分代码省略.........

int
AxExtractTables (
    char                    *InputPathname,
    char                    *Signature,
    unsigned int            MinimumInstances)
{
    FILE                    *InputFile;
    FILE                    *OutputFile = NULL;
    size_t                  BytesWritten;
    size_t                  TotalBytesWritten = 0;
    size_t                  BytesConverted;
    unsigned int            State = AX_STATE_FIND_HEADER;
    unsigned int            FoundTable = 0;
    unsigned int            Instances = 0;
    unsigned int            ThisInstance;
    char                    ThisSignature[4];
    int                     Status = 0;


    /* Open input in text mode, output is in binary mode */

    InputFile = fopen (InputPathname, "rt");
    if (!InputFile)
    {
        printf ("Could not open %s\n", InputPathname);
        return (-1);
    }

    if (Signature)
    {
        /* Are there enough instances of the table to continue? */

        AxNormalizeSignature (Signature);

        Instances = AxCountTableInstances (InputPathname, Signature);
        if (Instances < MinimumInstances)
        {
            printf ("Table %s was not found in %s\n", Signature, InputPathname);
            Status = -1;
            goto CleanupAndExit;
        }

        if (Instances == 0)
        {
            goto CleanupAndExit;
        }
    }

    /* Convert all instances of the table to binary */

    while (fgets (LineBuffer, AX_LINE_BUFFER_SIZE, InputFile))
    {
        switch (State)
        {
        case AX_STATE_FIND_HEADER:

            /* Ignore lines that are too short to be header lines */

            if (strlen (LineBuffer) < AX_MIN_TABLE_NAME_LENGTH)
            {
                continue;
            }

            /* Ignore empty lines and lines that start with a space */

            if ((LineBuffer[0] == ' ') ||
                (LineBuffer[0] == '\n'))
            {
                continue;
            }

            /*
             * Ignore lines that are not of the form <sig> @ <addr>.
             * Examples of lines that must be supported:
             *
             * DSDT @ 0x737e4000
             * XSDT @ 0x737f2fff
             * RSD PTR @ 0xf6cd0
             * SSDT @ (nil)
             */
            if (!strstr (LineBuffer, " @ "))
            {
                continue;
            }

            AxNormalizeSignature (LineBuffer);
            ACPI_MOVE_NAME (ThisSignature, LineBuffer);

            if (Signature)
            {
                /* Ignore signatures that don't match */

                if (!ACPI_COMPARE_NAME (ThisSignature, Signature))
                {
                    continue;
                }
            }

            /*
             * Get the instance number for this signature. Only the
//.........这里部分代码省略.........

int
AxListTables (
    char                    *InputPathname)
{
    FILE                    *InputFile;
    size_t                  HeaderSize;
    unsigned char           Header[48];
    int                     TableCount = 0;
    ACPI_TABLE_HEADER       *TableHeader = (ACPI_TABLE_HEADER *) (void *) Header;


    /* Open input in text mode, output is in binary mode */

    InputFile = fopen (InputPathname, "rt");
    if (!InputFile)
    {
        printf ("Could not open %s\n", InputPathname);
        return (-1);
    }

    /* Dump the headers for all tables found in the input file */

    printf ("\nSignature Length Revision  OemId     OemTableId"
            "   OemRevision CompilerId CompilerRevision\n\n");

    while (fgets (LineBuffer, AX_LINE_BUFFER_SIZE, InputFile))
    {
        /* Ignore empty lines and lines that start with a space */

        if ((LineBuffer[0] == ' ') ||
            (LineBuffer[0] == '\n'))
        {
            continue;
        }

        /* Get the 36 byte header and display the fields */

        HeaderSize = AxGetTableHeader (InputFile, Header);
        if (HeaderSize < 16)
        {
            continue;
        }

        /* RSDP has an oddball signature and header */

        if (!strncmp (TableHeader->Signature, "RSD PTR ", 8))
        {
            AxCheckAscii ((char *) &Header[9], 6);
            printf ("%8.4s                   \"%6.6s\"\n", "RSDP", &Header[9]);
            TableCount++;
            continue;
        }

        /* Minimum size for table with standard header */

        if (HeaderSize < sizeof (ACPI_TABLE_HEADER))
        {
            continue;
        }

        /* Signature and Table length */

        TableCount++;
        printf ("%8.4s % 7d", TableHeader->Signature, TableHeader->Length);

        /* FACS has only signature and length */

        if (ACPI_COMPARE_NAME (TableHeader->Signature, "FACS"))
        {
            printf ("\n");
            continue;
        }

        /* OEM IDs and Compiler IDs */

        AxCheckAscii (TableHeader->OemId, 6);
        AxCheckAscii (TableHeader->OemTableId, 8);
        AxCheckAscii (TableHeader->AslCompilerId, 4);

        printf ("     %2.2X    \"%6.6s\"  \"%8.8s\"    %8.8X    \"%4.4s\"     %8.8X\n",
            TableHeader->Revision, TableHeader->OemId,
            TableHeader->OemTableId, TableHeader->OemRevision,
            TableHeader->AslCompilerId, TableHeader->AslCompilerRevision);
    }

    printf ("\nFound %u ACPI tables\n", TableCount);
    fclose (InputFile);
    return (0);
}

ACPI_STATUS
AeBuildLocalTables (
    ACPI_NEW_TABLE_DESC     *ListHead)
{
    UINT32                  TableCount = 1;
    ACPI_PHYSICAL_ADDRESS   DsdtAddress = 0;
    UINT32                  XsdtSize;
    ACPI_NEW_TABLE_DESC     *NextTable;
    UINT32                  NextIndex;
    ACPI_TABLE_FADT         *ExternalFadt = NULL;


    /*
     * Update the table count. For the DSDT, it is not put into the XSDT.
     * For the FADT, this table is already accounted for since we usually
     * install a local FADT.
     */
    NextTable = ListHead;
    while (NextTable)
    {
        if (!ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_DSDT) &&
            !ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_FADT))
        {
            TableCount++;
        }

        NextTable = NextTable->Next;
    }

    XsdtSize = (((TableCount + 1) * sizeof (UINT64)) +
        sizeof (ACPI_TABLE_HEADER));
    if (AcpiGbl_LoadTestTables)
    {
        XsdtSize += BASE_XSDT_SIZE;
    }

    /* Build an XSDT */

    LocalXSDT = AcpiOsAllocate (XsdtSize);
    if (!LocalXSDT)
    {
        return (AE_NO_MEMORY);
    }

    memset (LocalXSDT, 0, XsdtSize);
    LocalXSDT->TableOffsetEntry[0] = ACPI_PTR_TO_PHYSADDR (&LocalFADT);
    NextIndex = 1;

    /*
     * Install the user tables. The DSDT must be installed in the FADT.
     * All other tables are installed directly into the XSDT.
     */
    NextTable = ListHead;
    while (NextTable)
    {
        /*
         * Incoming DSDT or FADT are special cases. All other tables are
         * just immediately installed into the XSDT.
         */
        if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_DSDT))
        {
            if (DsdtAddress)
            {
                printf ("Already found a DSDT, only one allowed\n");
                return (AE_ALREADY_EXISTS);
            }

            /* The incoming user table is a DSDT */

            DsdtAddress = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
            DsdtToInstallOverride = NextTable->Table;
        }
        else if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_FADT))
        {
            ExternalFadt = ACPI_CAST_PTR (ACPI_TABLE_FADT, NextTable->Table);
            LocalXSDT->TableOffsetEntry[0] = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
        }
        else
        {
            /* Install the table in the XSDT */

            LocalXSDT->TableOffsetEntry[NextIndex] =
                ACPI_PTR_TO_PHYSADDR (NextTable->Table);
            NextIndex++;
        }

        NextTable = NextTable->Next;
    }

    /* Install the optional extra local tables */

    if (AcpiGbl_LoadTestTables)
    {
        LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&LocalTEST);
        LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&LocalBADTABLE);

        /* Install two SSDTs to test multiple table support */

        LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Ssdt1Code);
        LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Ssdt2Code);
//.........这里部分代码省略.........

int
AxExtractTables (
    char                    *InputPathname,
    char                    *Signature,
    unsigned int            MinimumInstances)
{
    FILE                    *InputFile;
    FILE                    *OutputFile = NULL;
    unsigned int            BytesConverted;
    unsigned int            ThisTableBytesWritten = 0;
    unsigned int            FoundTable = 0;
    unsigned int            Instances = 0;
    unsigned int            ThisInstance;
    char                    ThisSignature[5];
    char                    UpperSignature[5];
    int                     Status = 0;
    unsigned int            State = AX_STATE_FIND_HEADER;


    /* Open input in text mode, output is in binary mode */

    InputFile = fopen (InputPathname, "rt");
    if (!InputFile)
    {
        printf ("Could not open input file %s\n", InputPathname);
        return (-1);
    }

    if (!AxIsFileAscii (InputFile))
    {
        fclose (InputFile);
        return (-1);
    }

    if (Signature)
    {
        strncpy (UpperSignature, Signature, 4);
        UpperSignature[4] = 0;
        AcpiUtStrupr (UpperSignature);

        /* Are there enough instances of the table to continue? */

        AxNormalizeSignature (UpperSignature);

        Instances = AxCountTableInstances (InputPathname, UpperSignature);
        if (Instances < MinimumInstances)
        {
            printf ("Table [%s] was not found in %s\n",
                UpperSignature, InputPathname);
            fclose (InputFile);
            return (-1);
        }

        if (Instances == 0)
        {
            fclose (InputFile);
            return (-1);
        }
    }

    /* Convert all instances of the table to binary */

    while (fgets (Gbl_LineBuffer, AX_LINE_BUFFER_SIZE, InputFile))
    {
        switch (State)
        {
        case AX_STATE_FIND_HEADER:

            if (!AxIsDataBlockHeader ())
            {
                continue;
            }

            ACPI_MOVE_NAME (ThisSignature, Gbl_LineBuffer);
            if (Signature)
            {
                /* Ignore signatures that don't match */

                if (!ACPI_COMPARE_NAME (ThisSignature, UpperSignature))
                {
                    continue;
                }
            }

            /*
             * Get the instance number for this signature. Only the
             * SSDT and PSDT tables can have multiple instances.
             */
            ThisInstance = AxGetNextInstance (InputPathname, ThisSignature);

            /* Build an output filename and create/open the output file */

            if (ThisInstance > 0)
            {
                /* Add instance number to the output filename */

                sprintf (Gbl_OutputFilename, "%4.4s%u.dat",
                    ThisSignature, ThisInstance);
            }
            else
//.........这里部分代码省略.........

int
AxExtractToMultiAmlFile (
    char                    *InputPathname)
{
    FILE                    *InputFile;
    FILE                    *OutputFile;
    int                     Status = 0;
    unsigned int            TotalBytesWritten = 0;
    unsigned int            ThisTableBytesWritten = 0;
    unsigned int             BytesConverted;
    char                    ThisSignature[4];
    unsigned int            State = AX_STATE_FIND_HEADER;


    strcpy (Gbl_OutputFilename, AX_MULTI_TABLE_FILENAME);

    /* Open the input file in text mode */

    InputFile = fopen (InputPathname, "rt");
    if (!InputFile)
    {
        printf ("Could not open input file %s\n", InputPathname);
        return (-1);
    }

    if (!AxIsFileAscii (InputFile))
    {
        fclose (InputFile);
        return (-1);
    }

    /* Open the output file in binary mode */

    OutputFile = fopen (Gbl_OutputFilename, "w+b");
    if (!OutputFile)
    {
        printf ("Could not open output file %s\n", Gbl_OutputFilename);
        fclose (InputFile);
        return (-1);
    }

    /* Convert the DSDT and all SSDTs to binary */

    while (fgets (Gbl_LineBuffer, AX_LINE_BUFFER_SIZE, InputFile))
    {
        switch (State)
        {
        case AX_STATE_FIND_HEADER:

            if (!AxIsDataBlockHeader ())
            {
                continue;
            }

            ACPI_MOVE_NAME (ThisSignature, Gbl_LineBuffer);

            /* Only want DSDT and SSDTs */

            if (!ACPI_COMPARE_NAME (ThisSignature, ACPI_SIG_DSDT) &&
                !ACPI_COMPARE_NAME (ThisSignature, ACPI_SIG_SSDT))
            {
                continue;
            }

            /*
             * Toss this block header of the form "<sig> @ <addr>" line
             * and move on to the actual data block
             */
            Gbl_TableCount++;
            ThisTableBytesWritten = 0;
            State = AX_STATE_EXTRACT_DATA;
            continue;

        case AX_STATE_EXTRACT_DATA:

            /* Empty line or non-data line terminates the data block */

            BytesConverted = AxProcessOneTextLine (
                OutputFile, ThisSignature, ThisTableBytesWritten);
            switch (BytesConverted)
            {
            case 0:

                State = AX_STATE_FIND_HEADER; /* No more data block lines */
                continue;

            case -1:

                goto CleanupAndExit; /* There was a write error */

            default: /* Normal case, get next line */

                ThisTableBytesWritten += BytesConverted;
                TotalBytesWritten += BytesConverted;
                continue;
            }

        default:

            Status = -1;
//.........这里部分代码省略.........

static ACPI_STATUS
DtCreateOneTemplate (
    char                    *Signature,
    UINT32                  TableCount,
    const ACPI_DMTABLE_DATA  *TableData)
{
    char                    *DisasmFilename;
    FILE                    *File;
    ACPI_STATUS             Status = AE_OK;
    int                     Actual;
    UINT32                  i;


    /* New file will have a .asl suffix */

    DisasmFilename = FlGenerateFilename (
        Signature, FILE_SUFFIX_ASL_CODE);
    if (!DisasmFilename)
    {
        fprintf (stderr, "Could not generate output filename\n");
        return (AE_ERROR);
    }

    AcpiUtStrlwr (DisasmFilename);
    if (!UtQueryForOverwrite (DisasmFilename))
    {
        return (AE_ERROR);
    }

    File = fopen (DisasmFilename, "w+");
    if (!File)
    {
        fprintf (stderr, "Could not open output file %s\n",
            DisasmFilename);
        return (AE_ERROR);
    }

    /* Emit the common file header */

    AcpiOsRedirectOutput (File);

    AcpiOsPrintf ("/*\n");
    AcpiOsPrintf (ACPI_COMMON_HEADER ("iASL Compiler/Disassembler", " * "));

    if (TableCount == 0)
    {
        AcpiOsPrintf (" * Template for [%4.4s] ACPI Table",
            Signature);
    }
    else
    {
        AcpiOsPrintf (" * Template for [%4.4s] and %u [SSDT] ACPI Tables",
            Signature, TableCount);
    }

    /* Dump the actual ACPI table */

    if (TableData)
    {
        /* Normal case, tables that appear in AcpiDmTableData */

        AcpiOsPrintf (" (static data table)\n");

        if (Gbl_VerboseTemplates)
        {
            AcpiOsPrintf (" * Format: [HexOffset DecimalOffset ByteLength]"
                "  FieldName : HexFieldValue\n */\n\n");
        }
        else
        {
            AcpiOsPrintf (" * Format: [ByteLength]"
                "  FieldName : HexFieldValue\n */\n");
        }

        AcpiDmDumpDataTable (ACPI_CAST_PTR (ACPI_TABLE_HEADER,
            TableData->Template));
    }
    else
    {
        /* Special ACPI tables - DSDT, SSDT, OSDT, FACS, RSDP */

        AcpiOsPrintf (" (AML byte code table)\n");
        AcpiOsPrintf (" */\n");

        if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_DSDT))
        {
            Actual = DtEmitDefinitionBlock (
                File, DisasmFilename, ACPI_SIG_DSDT, 1);
            if (Actual < 0)
            {
                Status = AE_ERROR;
                goto Cleanup;
            }

            /* Emit any requested SSDTs into the same file */

            for (i = 1; i <= TableCount; i++)
            {
                Actual = DtEmitDefinitionBlock (
                    File, DisasmFilename, ACPI_SIG_SSDT, i + 1);
//.........这里部分代码省略.........

ACPI_STATUS
AcpiOsGetTableByName (
    char                    *Signature,
    UINT32                  Instance,
    ACPI_TABLE_HEADER       **Table,
    ACPI_PHYSICAL_ADDRESS   *Address)
{
    HKEY                    Handle = NULL;
    LONG                    WinStatus;
    ULONG                   Type;
    ULONG                   NameSize;
    ULONG                   DataSize;
    HKEY                    SubKey;
    ULONG                   i;
    ACPI_TABLE_HEADER       *ReturnTable;
    ACPI_STATUS             Status = AE_OK;


    /*
     * Windows has no SSDTs in the registry, so multiple instances are
     * not supported.
     */
    if (Instance > 0)
    {
        return (AE_LIMIT);
    }

    /* Get a handle to the table key */

    while (1)
    {
        strcpy (KeyBuffer, "HARDWARE\\ACPI\\");
        if (AcpiUtSafeStrcat (KeyBuffer, sizeof (KeyBuffer), Signature))
        {
            return (AE_BUFFER_OVERFLOW);
        }

        WinStatus = RegOpenKeyEx (HKEY_LOCAL_MACHINE, KeyBuffer,
            0L, KEY_READ, &Handle);

        if (WinStatus != ERROR_SUCCESS)
        {
            /*
             * Somewhere along the way, MS changed the registry entry for
             * the FADT from
             * HARDWARE/ACPI/FACP  to
             * HARDWARE/ACPI/FADT.
             *
             * This code allows for both.
             */
            if (ACPI_COMPARE_NAME (Signature, "FACP"))
            {
                Signature = "FADT";
            }
            else if (ACPI_COMPARE_NAME (Signature, "XSDT"))
            {
                Signature = "RSDT";
            }
            else
            {
                fprintf (stderr,
                    "Could not find %s in registry at %s: %s (WinStatus=0x%X)\n",
                    Signature, KeyBuffer, WindowsFormatException (WinStatus), WinStatus);
                return (AE_NOT_FOUND);
            }
        }
        else
        {
            break;
        }
    }

    /* Actual data for the table is down a couple levels */

    for (i = 0; ;)
    {
        WinStatus = RegEnumKey (Handle, i, KeyBuffer, sizeof (KeyBuffer));
        i++;
        if (WinStatus == ERROR_NO_MORE_ITEMS)
        {
            break;
        }

        WinStatus = RegOpenKey (Handle, KeyBuffer, &SubKey);
        if (WinStatus != ERROR_SUCCESS)
        {
            fprintf (stderr, "Could not open %s entry: %s\n",
                Signature, WindowsFormatException (WinStatus));
            Status = AE_ERROR;
            goto Cleanup;
        }

        RegCloseKey (Handle);
        Handle = SubKey;
        i = 0;
    }

    /* Find the (binary) table entry */

    for (i = 0; ; i++)
//.........这里部分代码省略.........

/*******************************************************************************
 *
 * FUNCTION:    acpi_tb_load_namespace
 *
 * PARAMETERS:  None
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
 *              the RSDT/XSDT.
 *
 ******************************************************************************/
acpi_status acpi_tb_load_namespace(void)
{
	acpi_status status;
	u32 i;
	struct acpi_table_header *new_dsdt;
	struct acpi_table_desc *table;
	u32 tables_loaded = 0;
	u32 tables_failed = 0;

	ACPI_FUNCTION_TRACE(tb_load_namespace);

	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);

	/*
	 * Load the namespace. The DSDT is required, but any SSDT and
	 * PSDT tables are optional. Verify the DSDT.
	 */
	table = &acpi_gbl_root_table_list.tables[acpi_gbl_dsdt_index];

	if (!acpi_gbl_root_table_list.current_table_count ||
	    !ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_DSDT) ||
	    ACPI_FAILURE(acpi_tb_validate_table(table))) {
		status = AE_NO_ACPI_TABLES;
		goto unlock_and_exit;
	}

	/*
	 * Save the DSDT pointer for simple access. This is the mapped memory
	 * address. We must take care here because the address of the .Tables
	 * array can change dynamically as tables are loaded at run-time. Note:
	 * .Pointer field is not validated until after call to acpi_tb_validate_table.
	 */
	acpi_gbl_DSDT = table->pointer;

	/*
	 * Optionally copy the entire DSDT to local memory (instead of simply
	 * mapping it.) There are some BIOSs that corrupt or replace the original
	 * DSDT, creating the need for this option. Default is FALSE, do not copy
	 * the DSDT.
	 */
	if (acpi_gbl_copy_dsdt_locally) {
		new_dsdt = acpi_tb_copy_dsdt(acpi_gbl_dsdt_index);
		if (new_dsdt) {
			acpi_gbl_DSDT = new_dsdt;
		}
	}

	/*
	 * Save the original DSDT header for detection of table corruption
	 * and/or replacement of the DSDT from outside the OS.
	 */
	memcpy(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
	       sizeof(struct acpi_table_header));

	/* Load and parse tables */

	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
	status = acpi_ns_load_table(acpi_gbl_dsdt_index, acpi_gbl_root_node);
	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
	if (ACPI_FAILURE(status)) {
		ACPI_EXCEPTION((AE_INFO, status, "[DSDT] table load failed"));
		tables_failed++;
	} else {
		tables_loaded++;
	}

	/* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */

	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
		table = &acpi_gbl_root_table_list.tables[i];

		if (!acpi_gbl_root_table_list.tables[i].address ||
		    (!ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_SSDT)
		     && !ACPI_COMPARE_NAME(table->signature.ascii,
					   ACPI_SIG_PSDT)
		     && !ACPI_COMPARE_NAME(table->signature.ascii,
					   ACPI_SIG_OSDT))
		    || ACPI_FAILURE(acpi_tb_validate_table(table))) {
			continue;
		}

		/* Ignore errors while loading tables, get as many as possible */

		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
		status = acpi_ns_load_table(i, acpi_gbl_root_node);
		(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
		if (ACPI_FAILURE(status)) {
			ACPI_EXCEPTION((AE_INFO, status,
//.........这里部分代码省略.........