aslutils.c

acpi tools for linux include acpiexec and acpixtract

        Gbl_InputByteCount, TotalKeywords);

    /* AML summary */

    if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors))
    {
        FlPrintFile (FileId,
            "AML Output: %s - %d bytes %d named objects %d executable opcodes\n\n",
            Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength,
            TotalNamedObjects, TotalExecutableOpcodes);
    }

    /* Error summary */

    FlPrintFile (FileId,
        "Compilation complete. %d Errors, %d Warnings, %d Remarks, %d Optimizations\n",
        Gbl_ExceptionCount[ASL_ERROR],
        Gbl_ExceptionCount[ASL_WARNING] +
            Gbl_ExceptionCount[ASL_WARNING2] +
            Gbl_ExceptionCount[ASL_WARNING3],
        Gbl_ExceptionCount[ASL_REMARK],
        Gbl_ExceptionCount[ASL_OPTIMIZATION]);
}


/*******************************************************************************
 *
 * FUNCTION:    UtDisplaySummary
 *
 * PARAMETERS:  Op              - Integer parse node
 *              LowValue        - Smallest allowed value
 *              HighValue       - Largest allowed value
 *
 * RETURN:      Op if OK, otherwise NULL
 *
 * DESCRIPTION: Check integer for an allowable range
 *
 ******************************************************************************/

ACPI_PARSE_OBJECT *
UtCheckIntegerRange (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  LowValue,
    UINT32                  HighValue)
{
    char                    *ParseError = NULL;
    char                    Buffer[64];


    if (!Op)
    {
        return NULL;
    }

    if (Op->Asl.Value.Integer < LowValue)
    {
        ParseError = "Value below valid range";
        Op->Asl.Value.Integer = LowValue;
    }

    if (Op->Asl.Value.Integer > HighValue)
    {
        ParseError = "Value above valid range";
        Op->Asl.Value.Integer = HighValue;
    }

    if (ParseError)
    {
        sprintf (Buffer, "%s 0x%X-0x%X", ParseError, LowValue, HighValue);
        AslCompilererror (Buffer);

        return NULL;
    }

    return Op;
}


/*******************************************************************************
 *
 * FUNCTION:    UtGetStringBuffer
 *
 * PARAMETERS:  Length          - Size of buffer requested
 *
 * RETURN:      Pointer to the buffer.  Aborts on allocation failure
 *
 * DESCRIPTION: Allocate a string buffer.  Bypass the local
 *              dynamic memory manager for performance reasons (This has a
 *              major impact on the speed of the compiler.)
 *
 ******************************************************************************/

char *
UtGetStringBuffer (
    UINT32                  Length)
{
    char                    *Buffer;


    if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast)
    {
        Gbl_StringCacheNext = UtLocalCalloc (ASL_STRING_CACHE_SIZE + Length);
        Gbl_StringCacheLast = Gbl_StringCacheNext + ASL_STRING_CACHE_SIZE +
                                Length;
    }

    Buffer = Gbl_StringCacheNext;
    Gbl_StringCacheNext += Length;

    return (Buffer);
}


/*******************************************************************************
 *
 * FUNCTION:    UtInternalizeName
 *
 * PARAMETERS:  ExternalName            - Name to convert
 *              ConvertedName           - Where the converted name is returned
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Convert an external (ASL) name to an internal (AML) name
 *
 ******************************************************************************/

ACPI_STATUS
UtInternalizeName (
    char                    *ExternalName,
    char                    **ConvertedName)
{
    ACPI_NAMESTRING_INFO    Info;
    ACPI_STATUS             Status;


    if (!ExternalName)
    {
        return (AE_OK);
    }

    /* Get the length of the new internal name */

    Info.ExternalName = ExternalName;
    AcpiNsGetInternalNameLength (&Info);

    /* We need a segment to store the internal  name */

    Info.InternalName = UtGetStringBuffer (Info.Length);
    if (!Info.InternalName)
    {
        return (AE_NO_MEMORY);
    }

    /* Build the name */

    Status = AcpiNsBuildInternalName (&Info);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    *ConvertedName = Info.InternalName;
    return (AE_OK);
}


/*******************************************************************************
 *
 * FUNCTION:    UtPadNameWithUnderscores
 *
 * PARAMETERS:  NameSeg         - Input nameseg
 *              PaddedNameSeg   - Output padded nameseg
 *
 * RETURN:      Padded nameseg.
 *
 * DESCRIPTION: Pads a NameSeg with underscores if necessary to form a full
 *              ACPI_NAME.
 *
 ******************************************************************************/

static void
UtPadNameWithUnderscores (
    char                    *NameSeg,
    char                    *PaddedNameSeg)
{
    UINT32                  i;


    for (i = 0; (i < ACPI_NAME_SIZE); i++)
    {
        if (*NameSeg)
        {
            *PaddedNameSeg = *NameSeg;
            NameSeg++;
        }
        else
        {
            *PaddedNameSeg = '_';
        }
        PaddedNameSeg++;
    }
}


/*******************************************************************************
 *
 * FUNCTION:    UtAttachNameseg
 *
 * PARAMETERS:  Op              - Parent parse node
 *              Name            - Full ExternalName
 *
 * RETURN:      None; Sets the NameSeg field in parent node
 *
 * DESCRIPTION: Extract the last nameseg of the ExternalName and store it
 *              in the NameSeg field of the Op.
 *
 ******************************************************************************/

static void
UtAttachNameseg (
    ACPI_PARSE_OBJECT       *Op,
    char                    *Name)
{
    char                    *NameSeg;
    char                    PaddedNameSeg[4];


    if (!Name)
    {
        return;
    }

    /* Look for the last dot in the namepath */

    NameSeg = strrchr (Name, '.');
    if (NameSeg)
    {
        /* Found last dot, we have also found the final nameseg */

        NameSeg++;
        UtPadNameWithUnderscores (NameSeg, PaddedNameSeg);
    }
    else
    {
        /* No dots in the namepath, there is only a single nameseg. */
        /* Handle prefixes */

        while ((*Name == '\\') || (*Name == '^'))
        {
            Name++;
        }

        /* Remaing string should be one single nameseg */

        UtPadNameWithUnderscores (Name, PaddedNameSeg);
    }

    strncpy (Op->Asl.NameSeg, PaddedNameSeg, 4);
}


/*******************************************************************************
 *
 * FUNCTION:    UtAttachNamepathToOwner
 *
 * PARAMETERS:  Op            - Parent parse node
 *              NameOp        - Node that contains the name
 *
 * RETURN:      Sets the ExternalName and Namepath in the parent node
 *
 * DESCRIPTION: Store the name in two forms in the parent node:  The original
 *              (external) name, and the internalized name that is used within
 *              the ACPI namespace manager.
 *
 ******************************************************************************/

void
UtAttachNamepathToOwner (
    ACPI_PARSE_OBJECT       *Op,
    ACPI_PARSE_OBJECT       *NameOp)
{
    ACPI_STATUS             Status;


    /* Full external path */

    Op->Asl.ExternalName = NameOp->Asl.Value.String;

    /* Save the NameOp for possible error reporting later */

    Op->Asl.ParentMethod = (void *) NameOp;

    /* Last nameseg of the path */

    UtAttachNameseg (Op, Op->Asl.ExternalName);

    /* Create internalized path */

    Status = UtInternalizeName (NameOp->Asl.Value.String, &Op->Asl.Namepath);
    if (ACPI_FAILURE (Status))
    {
        /* TBD: abort on no memory */
    }
}


/*******************************************************************************
 *
 * FUNCTION:    UtDoConstant
 *
 * PARAMETERS:  String      - Hex, Octal, or Decimal string
 *
 * RETURN:      Converted Integer
 *
 * DESCRIPTION: Convert a string to an integer.  With error checking.
 *
 ******************************************************************************/

ACPI_INTEGER
UtDoConstant (
    char                    *String)
{
    ACPI_STATUS             Status;
    ACPI_INTEGER            Converted;
    char                    ErrBuf[64];


    Status = UtStrtoul64 (String, 0, &Converted);
    if (ACPI_FAILURE (Status))
    {
        sprintf (ErrBuf, "%s %s\n", "Conversion error:",
            AcpiFormatException (Status));
        AslCompilererror (ErrBuf);
    }

    return (Converted);
}


/* TBD: use version in ACPI CA main code base? */

/*******************************************************************************
 *
 * FUNCTION:    UtStrtoul64
 *
 * PARAMETERS:  String          - Null terminated string
 *              Terminater      - Where a pointer to the terminating byte is
 *                                returned
 *              Base            - Radix of the string
 *
 * RETURN:      Converted value
 *
 * DESCRIPTION: Convert a string into an unsigned value.
 *
 ******************************************************************************/

static ACPI_STATUS
UtStrtoul64 (
    char                    *String,
    UINT32                  Base,
    ACPI_INTEGER            *RetInteger)
{
    UINT32                  Index;
    UINT32                  Sign;
    ACPI_INTEGER            ReturnValue = 0;
    ACPI_STATUS             Status = AE_OK;


    *RetInteger = 0;

    switch (Base)
    {
    case 0:
    case 8:
    case 10:
    case 16:
        break;

    default:
        /*
         * The specified Base parameter is not in the domain of
         * this function:
         */
        return (AE_BAD_PARAMETER);
    }

    /* Skip over any white space in the buffer: */

    while (isspace (*String) || *String == '\t')
    {
        ++String;
    }

    /*
     * The buffer may contain an optional plus or minus sign.
     * If it does, then skip over it but remember what is was:
     */
    if (*String == '-')
    {
        Sign = NEGATIVE;
        ++String;
    }
    else if (*String == '+')
    {
        ++String;
        Sign = POSITIVE;
    }
    else
    {
        Sign = POSITIVE;
    }

    /*
     * If the input parameter Base is zero, then we need to
     * determine if it is octal, decimal, or hexadecimal:
     */
    if (Base == 0)
    {
        if (*String == '0')
        {
            if (tolower (*(++String)) == 'x')
            {
                Base = 16;
                ++String;
            }
            else
            {
                Base = 8;
            }
        }
        else
        {
            Base = 10;
        }
    }

    /*
     * For octal and hexadecimal bases, skip over the leading
     * 0 or 0x, if they are present.
     */
    if (Base == 8 && *String == '0')
    {
        String++;
    }

    if (Base == 16 &&
        *String == '0' &&
        tolower (*(++String)) == 'x')
    {
        String++;
    }

    /* Main loop: convert the string to an unsigned long */

    while (*String)
    {
        if (isdigit (*String))
        {
            Index = ((UINT8) *String) - '0';
        }
        else
        {
            Index = (UINT8) toupper (*String);
            if (isupper ((char) Index))
            {
                Index = Index - 'A' + 10;
            }
            else
            {
                goto ErrorExit;
            }
        }

        if (Index >= Base)
        {
            goto ErrorExit;
        }

        /* Check to see if value is out of range: */

        if (ReturnValue > ((ACPI_INTEGER_MAX - (ACPI_INTEGER) Index) /
                            (ACPI_INTEGER) Base))
        {
            goto ErrorExit;
        }
        else
        {
            ReturnValue *= Base;
            ReturnValue += Index;
        }

        ++String;
    }


    /* If a minus sign was present, then "the conversion is negated": */

    if (Sign == NEGATIVE)
    {
        ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
    }

    *RetInteger = ReturnValue;
    return (Status);


ErrorExit:
    switch (Base)
    {
    case 8:
        Status = AE_BAD_OCTAL_CONSTANT;
        break;

    case 10:
        Status = AE_BAD_DECIMAL_CONSTANT;
        break;

    case 16:
        Status = AE_BAD_HEX_CONSTANT;
        break;

    default:
        /* Base validated above */
        break;
    }

    return (Status);
}