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Diffstat (limited to 'source/compiler/aslutils.c')
| -rw-r--r-- | source/compiler/aslutils.c | 1068 |
1 files changed, 1068 insertions, 0 deletions
diff --git a/source/compiler/aslutils.c b/source/compiler/aslutils.c new file mode 100644 index 0000000..4edc8c4 --- /dev/null +++ b/source/compiler/aslutils.c @@ -0,0 +1,1068 @@ + +/****************************************************************************** + * + * Module Name: aslutils -- compiler utilities + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * 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. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * 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 MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. + */ + + +#include "aslcompiler.h" +#include "aslcompiler.y.h" +#include "acdisasm.h" +#include "acnamesp.h" +#include "amlcode.h" +#include <acapps.h> + +#define _COMPONENT ACPI_COMPILER + ACPI_MODULE_NAME ("aslutils") + + +char AslHexLookup[] = +{ + '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F' +}; + +/* Table below must match ASL_FILE_TYPES in asltypes.h */ + +static const char *AslFileTypeNames [ASL_NUM_FILES] = +{ + "stdout: ", + "stderr: ", + "Table Input: ", + "Binary Output:", + "Source Output:", + "Listing File: ", + "Hex Dump: ", + "Namespace: ", + "Debug File: ", + "ASM Source: ", + "C Source: ", + "ASM Include: ", + "C Include: " +}; + + +/* Local prototypes */ + +static void +UtPadNameWithUnderscores ( + char *NameSeg, + char *PaddedNameSeg); + +static void +UtAttachNameseg ( + ACPI_PARSE_OBJECT *Op, + char *Name); + + +/******************************************************************************* + * + * FUNCTION: UtDisplaySupportedTables + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Print all supported ACPI table names. + * + ******************************************************************************/ + +void +UtDisplaySupportedTables ( + void) +{ + ACPI_DMTABLE_DATA *TableData; + UINT32 i = 6; + + + printf ("\nACPI tables supported by iASL subsystems in " + "version %8.8X:\n" + " ASL and Data Table compilers\n" + " AML and Data Table disassemblers\n" + " ACPI table template generator\n\n", ACPI_CA_VERSION); + + /* Special tables */ + + printf ("%8u) %s %s\n", 1, ACPI_SIG_DSDT, "Differentiated System Description Table"); + printf ("%8u) %s %s\n", 2, ACPI_SIG_SSDT, "Secondary System Description Table"); + printf ("%8u) %s %s\n", 3, ACPI_SIG_FADT, "Fixed ACPI Description Table (FADT)"); + printf ("%8u) %s %s\n", 4, ACPI_SIG_FACS, "Firmware ACPI Control Structure"); + printf ("%8u) %s %s\n", 5, ACPI_RSDP_NAME, "Root System Description Pointer"); + + /* All data tables with common table header */ + + for (TableData = AcpiDmTableData; TableData->Signature; TableData++) + { + printf ("%8u) %s %s\n", i, TableData->Signature, TableData->Name); + i++; + } +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsDisplayConstantOpcodes + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Print AML opcodes that can be used in constant expressions. + * + ******************************************************************************/ + +void +UtDisplayConstantOpcodes ( + void) +{ + UINT32 i; + + + printf ("Constant expression opcode information\n\n"); + + for (i = 0; i < sizeof (AcpiGbl_AmlOpInfo) / sizeof (ACPI_OPCODE_INFO); i++) + { + if (AcpiGbl_AmlOpInfo[i].Flags & AML_CONSTANT) + { + printf ("%s\n", AcpiGbl_AmlOpInfo[i].Name); + } + } +} + + +/******************************************************************************* + * + * FUNCTION: UtLocalCalloc + * + * PARAMETERS: Size - Bytes to be allocated + * + * RETURN: Pointer to the allocated memory. Guaranteed to be valid. + * + * DESCRIPTION: Allocate zero-initialized memory. Aborts the compile on an + * allocation failure, on the assumption that nothing more can be + * accomplished. + * + ******************************************************************************/ + +void * +UtLocalCalloc ( + UINT32 Size) +{ + void *Allocated; + + + Allocated = ACPI_ALLOCATE_ZEROED (Size); + if (!Allocated) + { + AslCommonError (ASL_ERROR, ASL_MSG_MEMORY_ALLOCATION, + Gbl_CurrentLineNumber, Gbl_LogicalLineNumber, + Gbl_InputByteCount, Gbl_CurrentColumn, + Gbl_Files[ASL_FILE_INPUT].Filename, NULL); + + CmCleanupAndExit (); + exit (1); + } + + TotalAllocations++; + TotalAllocated += Size; + return (Allocated); +} + + +/******************************************************************************* + * + * FUNCTION: UtBeginEvent + * + * PARAMETERS: Name - Ascii name of this event + * + * RETURN: Event - Event number (integer index) + * + * DESCRIPTION: Saves the current time with this event + * + ******************************************************************************/ + +UINT8 +UtBeginEvent ( + char *Name) +{ + + if (AslGbl_NextEvent >= ASL_NUM_EVENTS) + { + AcpiOsPrintf ("Ran out of compiler event structs!\n"); + return (AslGbl_NextEvent); + } + + /* Init event with current (start) time */ + + AslGbl_Events[AslGbl_NextEvent].StartTime = AcpiOsGetTimer (); + AslGbl_Events[AslGbl_NextEvent].EventName = Name; + AslGbl_Events[AslGbl_NextEvent].Valid = TRUE; + + return (AslGbl_NextEvent++); +} + + +/******************************************************************************* + * + * FUNCTION: UtEndEvent + * + * PARAMETERS: Event - Event number (integer index) + * + * RETURN: None + * + * DESCRIPTION: Saves the current time (end time) with this event + * + ******************************************************************************/ + +void +UtEndEvent ( + UINT8 Event) +{ + + if (Event >= ASL_NUM_EVENTS) + { + return; + } + + /* Insert end time for event */ + + AslGbl_Events[Event].EndTime = AcpiOsGetTimer (); +} + + +/******************************************************************************* + * + * FUNCTION: UtHexCharToValue + * + * PARAMETERS: HexChar - Hex character in Ascii + * + * RETURN: The binary value of the hex character + * + * DESCRIPTION: Perform ascii-to-hex translation + * + ******************************************************************************/ + +UINT8 +UtHexCharToValue ( + int HexChar) +{ + + if (HexChar <= 0x39) + { + return ((UINT8) (HexChar - 0x30)); + } + + if (HexChar <= 0x46) + { + return ((UINT8) (HexChar - 0x37)); + } + + return ((UINT8) (HexChar - 0x57)); +} + + +/******************************************************************************* + * + * FUNCTION: UtConvertByteToHex + * + * PARAMETERS: RawByte - Binary data + * Buffer - Pointer to where the hex bytes will be stored + * + * RETURN: Ascii hex byte is stored in Buffer. + * + * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed + * with "0x" + * + ******************************************************************************/ + +void +UtConvertByteToHex ( + UINT8 RawByte, + UINT8 *Buffer) +{ + + Buffer[0] = '0'; + Buffer[1] = 'x'; + + Buffer[2] = (UINT8) AslHexLookup[(RawByte >> 4) & 0xF]; + Buffer[3] = (UINT8) AslHexLookup[RawByte & 0xF]; +} + + +/******************************************************************************* + * + * FUNCTION: UtConvertByteToAsmHex + * + * PARAMETERS: RawByte - Binary data + * Buffer - Pointer to where the hex bytes will be stored + * + * RETURN: Ascii hex byte is stored in Buffer. + * + * DESCRIPTION: Perform hex-to-ascii translation. The return data is prefixed + * with "0x" + * + ******************************************************************************/ + +void +UtConvertByteToAsmHex ( + UINT8 RawByte, + UINT8 *Buffer) +{ + + Buffer[0] = '0'; + Buffer[1] = (UINT8) AslHexLookup[(RawByte >> 4) & 0xF]; + Buffer[2] = (UINT8) AslHexLookup[RawByte & 0xF]; + Buffer[3] = 'h'; +} + + +/******************************************************************************* + * + * FUNCTION: DbgPrint + * + * PARAMETERS: Type - Type of output + * Fmt - Printf format string + * ... - variable printf list + * + * RETURN: None + * + * DESCRIPTION: Conditional print statement. Prints to stderr only if the + * debug flag is set. + * + ******************************************************************************/ + +void +DbgPrint ( + UINT32 Type, + char *Fmt, + ...) +{ + va_list Args; + + + va_start (Args, Fmt); + + if (!Gbl_DebugFlag) + { + return; + } + + if ((Type == ASL_PARSE_OUTPUT) && + (!(AslCompilerdebug))) + { + return; + } + + (void) vfprintf (stderr, Fmt, Args); + va_end (Args); + return; +} + + +/******************************************************************************* + * + * FUNCTION: UtPrintFormattedName + * + * PARAMETERS: ParseOpcode - Parser keyword ID + * Level - Indentation level + * + * RETURN: None + * + * DESCRIPTION: Print the ascii name of the parse opcode. + * + ******************************************************************************/ + +#define TEXT_OFFSET 10 + +void +UtPrintFormattedName ( + UINT16 ParseOpcode, + UINT32 Level) +{ + + if (Level) + { + DbgPrint (ASL_TREE_OUTPUT, + "%*s", (3 * Level), " "); + } + DbgPrint (ASL_TREE_OUTPUT, + " %-20.20s", UtGetOpName (ParseOpcode)); + + if (Level < TEXT_OFFSET) + { + DbgPrint (ASL_TREE_OUTPUT, + "%*s", (TEXT_OFFSET - Level) * 3, " "); + } +} + + +/******************************************************************************* + * + * FUNCTION: UtSetParseOpName + * + * PARAMETERS: Op + * + * RETURN: None + * + * DESCRIPTION: Insert the ascii name of the parse opcode + * + ******************************************************************************/ + +void +UtSetParseOpName ( + ACPI_PARSE_OBJECT *Op) +{ + + strncpy (Op->Asl.ParseOpName, UtGetOpName (Op->Asl.ParseOpcode), + ACPI_MAX_PARSEOP_NAME); +} + + +/******************************************************************************* + * + * FUNCTION: UtDisplaySummary + * + * PARAMETERS: FileID - ID of outpout file + * + * RETURN: None + * + * DESCRIPTION: Display compilation statistics + * + ******************************************************************************/ + +void +UtDisplaySummary ( + UINT32 FileId) +{ + UINT32 i; + + + if (FileId != ASL_FILE_STDOUT) + { + /* Compiler name and version number */ + + FlPrintFile (FileId, "%s version %X%s [%s]\n\n", + ASL_COMPILER_NAME, (UINT32) ACPI_CA_VERSION, ACPI_WIDTH, __DATE__); + } + + /* Summary of main input and output files */ + + if (Gbl_FileType == ASL_INPUT_TYPE_ASCII_DATA) + { + FlPrintFile (FileId, + "%-14s %s - %u lines, %u bytes, %u fields\n", + "Table Input:", + Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, + Gbl_InputByteCount, Gbl_InputFieldCount); + + if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) + { + FlPrintFile (FileId, + "%-14s %s - %u bytes\n", + "Binary Output:", + Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength); + } + } + else + { + FlPrintFile (FileId, + "%-14s %s - %u lines, %u bytes, %u keywords\n", + "ASL Input:", + Gbl_Files[ASL_FILE_INPUT].Filename, Gbl_CurrentLineNumber, + Gbl_InputByteCount, TotalKeywords); + + /* AML summary */ + + if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors)) + { + FlPrintFile (FileId, + "%-14s %s - %u bytes, %u named objects, %u executable opcodes\n", + "AML Output:", + Gbl_Files[ASL_FILE_AML_OUTPUT].Filename, Gbl_TableLength, + TotalNamedObjects, TotalExecutableOpcodes); + } + } + + /* Display summary of any optional files */ + + for (i = ASL_FILE_SOURCE_OUTPUT; i <= ASL_MAX_FILE_TYPE; i++) + { + if (!Gbl_Files[i].Filename || !Gbl_Files[i].Handle) + { + continue; + } + + /* .SRC is a temp file unless specifically requested */ + + if ((i == ASL_FILE_SOURCE_OUTPUT) && (!Gbl_SourceOutputFlag)) + { + continue; + } + + FlPrintFile (FileId, "%14s %s - %u bytes\n", + AslFileTypeNames [i], + Gbl_Files[i].Filename, FlGetFileSize (i)); + } + + /* Error summary */ + + FlPrintFile (FileId, + "\nCompilation complete. %u Errors, %u Warnings, %u Remarks", + Gbl_ExceptionCount[ASL_ERROR], + Gbl_ExceptionCount[ASL_WARNING] + + Gbl_ExceptionCount[ASL_WARNING2] + + Gbl_ExceptionCount[ASL_WARNING3], + Gbl_ExceptionCount[ASL_REMARK]); + + if (Gbl_FileType != ASL_INPUT_TYPE_ASCII_DATA) + { + FlPrintFile (FileId, + ", %u Optimizations", Gbl_ExceptionCount[ASL_OPTIMIZATION]); + } + + FlPrintFile (FileId, "\n"); +} + + +/******************************************************************************* + * + * 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. + * + ******************************************************************************/ + +UINT64 +UtDoConstant ( + char *String) +{ + ACPI_STATUS Status; + UINT64 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. + * + ******************************************************************************/ + +ACPI_STATUS +UtStrtoul64 ( + char *String, + UINT32 Base, + UINT64 *RetInteger) +{ + UINT32 Index; + UINT32 Sign; + UINT64 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 ((int) *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 ((int) *(++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 ((int) *(++String)) == 'x') + { + String++; + } + + /* Main loop: convert the string to an unsigned long */ + + while (*String) + { + if (isdigit ((int) *String)) + { + Index = ((UINT8) *String) - '0'; + } + else + { + Index = (UINT8) toupper ((int) *String); + if (isupper ((int) 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_UINT64_MAX - (UINT64) Index) / + (UINT64) 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); +} + + |
