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acpica/source/compiler/aslutils.c
Robert Moore e323d40c46 iASL: Cleanup calls to memory allocation functions 
Both UtLocalCalloc and UtStringCacheCalloc will abort the
compiler on an allocation failure. Therefore, there is no
need to check for a non-allocation after these calls. This
change makes this consistent across the compiler.
2017-04-04 10:15:20 -07:00

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/******************************************************************************
*
* Module Name: aslutils -- compiler utilities
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2017, 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 "aslcompiler.h"
#include "aslcompiler.y.h"
#include "acdisasm.h"
#include "acnamesp.h"
#include "amlcode.h"
#include "acapps.h"
#include <sys/stat.h>
#define _COMPONENT ACPI_COMPILER
ACPI_MODULE_NAME ("aslutils")
/* Local prototypes */
static void
UtPadNameWithUnderscores (
char *NameSeg,
char *PaddedNameSeg);
static void
UtAttachNameseg (
ACPI_PARSE_OBJECT *Op,
char *Name);
/*******************************************************************************
*
* FUNCTION: UtIsBigEndianMachine
*
* PARAMETERS: None
*
* RETURN: TRUE if machine is big endian
* FALSE if machine is little endian
*
* DESCRIPTION: Detect whether machine is little endian or big endian.
*
******************************************************************************/
UINT8
UtIsBigEndianMachine (
void)
{
union {
UINT32 Integer;
UINT8 Bytes[4];
} Overlay = {0xFF000000};
return (Overlay.Bytes[0]); /* Returns 0xFF (TRUE) for big endian */
}
/******************************************************************************
*
* FUNCTION: UtQueryForOverwrite
*
* PARAMETERS: Pathname - Output filename
*
* RETURN: TRUE if file does not exist or overwrite is authorized
*
* DESCRIPTION: Query for file overwrite if it already exists.
*
******************************************************************************/
BOOLEAN
UtQueryForOverwrite (
char *Pathname)
{
struct stat StatInfo;
if (!stat (Pathname, &StatInfo))
{
fprintf (stderr, "Target file \"%s\" already exists, overwrite? [y|n] ",
Pathname);
if (getchar () != 'y')
{
return (FALSE);
}
}
return (TRUE);
}
/*******************************************************************************
*
* FUNCTION: UtDisplaySupportedTables
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Print all supported ACPI table names.
*
******************************************************************************/
void
UtDisplaySupportedTables (
void)
{
const AH_TABLE *TableData;
UINT32 i;
printf ("\nACPI tables supported by iASL version %8.8X:\n"
" (Compiler, Disassembler, Template Generator)\n\n",
ACPI_CA_VERSION);
/* All ACPI tables with the common table header */
printf ("\n Supported ACPI tables:\n");
for (TableData = Gbl_AcpiSupportedTables, i = 1;
TableData->Signature; TableData++, i++)
{
printf ("%8u) %s %s\n", i,
TableData->Signature, TableData->Description);
}
}
/*******************************************************************************
*
* FUNCTION: UtDisplayConstantOpcodes
*
* 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 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: 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;
if (!Gbl_DebugFlag)
{
return;
}
if ((Type == ASL_PARSE_OUTPUT) &&
(!(AslCompilerdebug)))
{
return;
}
va_start (Args, Fmt);
(void) vfprintf (stderr, Fmt, Args);
va_end (Args);
return;
}
/*******************************************************************************
*
* FUNCTION: UtSetParseOpName
*
* PARAMETERS: Op - Parse op to be named.
*
* 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]\n\n",
ASL_COMPILER_NAME, (UINT32) ACPI_CA_VERSION, __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_OriginalInputFileSize, TotalKeywords);
/* AML summary */
if ((Gbl_ExceptionCount[ASL_ERROR] == 0) || (Gbl_IgnoreErrors))
{
if (Gbl_Files[ASL_FILE_AML_OUTPUT].Handle)
{
FlPrintFile (FileId,
"%-14s %s - %u bytes, %u named objects, "
"%u executable opcodes\n",
"AML Output:",
Gbl_Files[ASL_FILE_AML_OUTPUT].Filename,
FlGetFileSize (ASL_FILE_AML_OUTPUT),
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;
}
/* .PRE is the preprocessor intermediate file */
if ((i == ASL_FILE_PREPROCESSOR) && (!Gbl_KeepPreprocessorTempFile))
{
continue;
}
FlPrintFile (FileId, "%14s %s - %u bytes\n",
Gbl_Files[i].ShortDescription,
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]);
if (TotalFolds)
{
FlPrintFile (FileId, ", %u Constants Folded", TotalFolds);
}
}
FlPrintFile (FileId, "\n");
}
/*******************************************************************************
*
* FUNCTION: UtCheckIntegerRange
*
* 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)
{
if (!Op)
{
return (NULL);
}
if ((Op->Asl.Value.Integer < LowValue) ||
(Op->Asl.Value.Integer > HighValue))
{
sprintf (MsgBuffer, "0x%X, allowable: 0x%X-0x%X",
(UINT32) Op->Asl.Value.Integer, LowValue, HighValue);
AslError (ASL_ERROR, ASL_MSG_RANGE, Op, MsgBuffer);
return (NULL);
}
return (Op);
}
/*******************************************************************************
*
* FUNCTION: UtStringCacheCalloc
*
* PARAMETERS: Length - Size of buffer requested
*
* RETURN: Pointer to the buffer. Aborts compiler 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 *
UtStringCacheCalloc (
UINT32 Length)
{
char *Buffer;
ASL_CACHE_INFO *Cache;
UINT32 CacheSize = ASL_STRING_CACHE_SIZE;
if (Length > CacheSize)
{
CacheSize = Length;
if (Gbl_StringCacheList)
{
Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
/* Link new cache buffer just following head of list */
Cache->Next = Gbl_StringCacheList->Next;
Gbl_StringCacheList->Next = Cache;
/* Leave cache management pointers alone as they pertain to head */
Gbl_StringCount++;
Gbl_StringSize += Length;
return (Cache->Buffer);
}
}
if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast)
{
/* Allocate a new buffer */
Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
/* Link new cache buffer to head of list */
Cache->Next = Gbl_StringCacheList;
Gbl_StringCacheList = Cache;
/* Setup cache management pointers */
Gbl_StringCacheNext = Cache->Buffer;
Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize;
}
Gbl_StringCount++;
Gbl_StringSize += Length;
Buffer = Gbl_StringCacheNext;
Gbl_StringCacheNext += Length;
return (Buffer);
}
/******************************************************************************
*
* FUNCTION: UtExpandLineBuffers
*
* PARAMETERS: None. Updates global line buffer pointers.
*
* RETURN: None. Reallocates the global line buffers
*
* DESCRIPTION: Called if the current line buffer becomes filled. Reallocates
* all global line buffers and updates Gbl_LineBufferSize. NOTE:
* Also used for the initial allocation of the buffers, when
* all of the buffer pointers are NULL. Initial allocations are
* of size ASL_DEFAULT_LINE_BUFFER_SIZE
*
*****************************************************************************/
void
UtExpandLineBuffers (
void)
{
UINT32 NewSize;
/* Attempt to double the size of all line buffers */
NewSize = Gbl_LineBufferSize * 2;
if (Gbl_CurrentLineBuffer)
{
DbgPrint (ASL_DEBUG_OUTPUT,
"Increasing line buffer size from %u to %u\n",
Gbl_LineBufferSize, NewSize);
}
Gbl_CurrentLineBuffer = realloc (Gbl_CurrentLineBuffer, NewSize);
Gbl_LineBufPtr = Gbl_CurrentLineBuffer;
if (!Gbl_CurrentLineBuffer)
{
goto ErrorExit;
}
Gbl_MainTokenBuffer = realloc (Gbl_MainTokenBuffer, NewSize);
if (!Gbl_MainTokenBuffer)
{
goto ErrorExit;
}
Gbl_MacroTokenBuffer = realloc (Gbl_MacroTokenBuffer, NewSize);
if (!Gbl_MacroTokenBuffer)
{
goto ErrorExit;
}
Gbl_ExpressionTokenBuffer = realloc (Gbl_ExpressionTokenBuffer, NewSize);
if (!Gbl_ExpressionTokenBuffer)
{
goto ErrorExit;
}
Gbl_LineBufferSize = NewSize;
return;
/* On error above, simply issue error messages and abort, cannot continue */
ErrorExit:
printf ("Could not increase line buffer size from %u to %u\n",
Gbl_LineBufferSize, Gbl_LineBufferSize * 2);
AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION,
NULL, NULL);
AslAbort ();
}
/******************************************************************************
*
* FUNCTION: UtFreeLineBuffers
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Free all line buffers
*
*****************************************************************************/
void
UtFreeLineBuffers (
void)
{
free (Gbl_CurrentLineBuffer);
free (Gbl_MainTokenBuffer);
free (Gbl_MacroTokenBuffer);
free (Gbl_ExpressionTokenBuffer);
}
/*******************************************************************************
*
* 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 = UtStringCacheCalloc (Info.Length);
/* 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 (ACPI_IS_ROOT_PREFIX (*Name) ||
ACPI_IS_PARENT_PREFIX (*Name))
{
Name++;
}
/* Remaining string should be one single nameseg */
UtPadNameWithUnderscores (Name, PaddedNameSeg);
}
ACPI_MOVE_NAME (Op->Asl.NameSeg, PaddedNameSeg);
}
/*******************************************************************************
*
* 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 - Hexadecimal 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 = AcpiUtStrtoul64 (String, ACPI_STRTOUL_64BIT, &Converted);
if (ACPI_FAILURE (Status))
{
sprintf (ErrBuf, "%s %s\n", "Conversion error:",
AcpiFormatException (Status));
AslCompilererror (ErrBuf);
}
return (Converted);
}
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